1 /* tc-arm.c -- Assemble for the ARM
2 Copyright (C) 1994-2019 Free Software Foundation, Inc.
3 Contributed by Richard Earnshaw (rwe@pegasus.esprit.ec.org)
4 Modified by David Taylor (dtaylor@armltd.co.uk)
5 Cirrus coprocessor mods by Aldy Hernandez (aldyh@redhat.com)
6 Cirrus coprocessor fixes by Petko Manolov (petkan@nucleusys.com)
7 Cirrus coprocessor fixes by Vladimir Ivanov (vladitx@nucleusys.com)
9 This file is part of GAS, the GNU Assembler.
11 GAS is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 3, or (at your option)
16 GAS is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with GAS; see the file COPYING. If not, write to the Free
23 Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
30 #include "safe-ctype.h"
33 #include "libiberty.h"
34 #include "opcode/arm.h"
38 #include "dw2gencfi.h"
41 #include "dwarf2dbg.h"
44 /* Must be at least the size of the largest unwind opcode (currently two). */
45 #define ARM_OPCODE_CHUNK_SIZE 8
47 /* This structure holds the unwinding state. */
52 symbolS * table_entry;
53 symbolS * personality_routine;
54 int personality_index;
55 /* The segment containing the function. */
58 /* Opcodes generated from this function. */
59 unsigned char * opcodes;
62 /* The number of bytes pushed to the stack. */
64 /* We don't add stack adjustment opcodes immediately so that we can merge
65 multiple adjustments. We can also omit the final adjustment
66 when using a frame pointer. */
67 offsetT pending_offset;
68 /* These two fields are set by both unwind_movsp and unwind_setfp. They
69 hold the reg+offset to use when restoring sp from a frame pointer. */
72 /* Nonzero if an unwind_setfp directive has been seen. */
74 /* Nonzero if the last opcode restores sp from fp_reg. */
75 unsigned sp_restored:1;
78 /* Whether --fdpic was given. */
83 /* Results from operand parsing worker functions. */
87 PARSE_OPERAND_SUCCESS,
89 PARSE_OPERAND_FAIL_NO_BACKTRACK
90 } parse_operand_result;
99 /* Types of processor to assemble for. */
101 /* The code that was here used to select a default CPU depending on compiler
102 pre-defines which were only present when doing native builds, thus
103 changing gas' default behaviour depending upon the build host.
105 If you have a target that requires a default CPU option then the you
106 should define CPU_DEFAULT here. */
111 # define FPU_DEFAULT FPU_ARCH_FPA
112 # elif defined (TE_NetBSD)
114 # define FPU_DEFAULT FPU_ARCH_VFP /* Soft-float, but VFP order. */
116 /* Legacy a.out format. */
117 # define FPU_DEFAULT FPU_ARCH_FPA /* Soft-float, but FPA order. */
119 # elif defined (TE_VXWORKS)
120 # define FPU_DEFAULT FPU_ARCH_VFP /* Soft-float, VFP order. */
122 /* For backwards compatibility, default to FPA. */
123 # define FPU_DEFAULT FPU_ARCH_FPA
125 #endif /* ifndef FPU_DEFAULT */
127 #define streq(a, b) (strcmp (a, b) == 0)
129 /* Current set of feature bits available (CPU+FPU). Different from
130 selected_cpu + selected_fpu in case of autodetection since the CPU
131 feature bits are then all set. */
132 static arm_feature_set cpu_variant;
133 /* Feature bits used in each execution state. Used to set build attribute
134 (in particular Tag_*_ISA_use) in CPU autodetection mode. */
135 static arm_feature_set arm_arch_used;
136 static arm_feature_set thumb_arch_used;
138 /* Flags stored in private area of BFD structure. */
139 static int uses_apcs_26 = FALSE;
140 static int atpcs = FALSE;
141 static int support_interwork = FALSE;
142 static int uses_apcs_float = FALSE;
143 static int pic_code = FALSE;
144 static int fix_v4bx = FALSE;
145 /* Warn on using deprecated features. */
146 static int warn_on_deprecated = TRUE;
148 /* Understand CodeComposer Studio assembly syntax. */
149 bfd_boolean codecomposer_syntax = FALSE;
151 /* Variables that we set while parsing command-line options. Once all
152 options have been read we re-process these values to set the real
155 /* CPU and FPU feature bits set for legacy CPU and FPU options (eg. -marm1
156 instead of -mcpu=arm1). */
157 static const arm_feature_set *legacy_cpu = NULL;
158 static const arm_feature_set *legacy_fpu = NULL;
160 /* CPU, extension and FPU feature bits selected by -mcpu. */
161 static const arm_feature_set *mcpu_cpu_opt = NULL;
162 static arm_feature_set *mcpu_ext_opt = NULL;
163 static const arm_feature_set *mcpu_fpu_opt = NULL;
165 /* CPU, extension and FPU feature bits selected by -march. */
166 static const arm_feature_set *march_cpu_opt = NULL;
167 static arm_feature_set *march_ext_opt = NULL;
168 static const arm_feature_set *march_fpu_opt = NULL;
170 /* Feature bits selected by -mfpu. */
171 static const arm_feature_set *mfpu_opt = NULL;
173 /* Constants for known architecture features. */
174 static const arm_feature_set fpu_default = FPU_DEFAULT;
175 static const arm_feature_set fpu_arch_vfp_v1 ATTRIBUTE_UNUSED = FPU_ARCH_VFP_V1;
176 static const arm_feature_set fpu_arch_vfp_v2 = FPU_ARCH_VFP_V2;
177 static const arm_feature_set fpu_arch_vfp_v3 ATTRIBUTE_UNUSED = FPU_ARCH_VFP_V3;
178 static const arm_feature_set fpu_arch_neon_v1 ATTRIBUTE_UNUSED = FPU_ARCH_NEON_V1;
179 static const arm_feature_set fpu_arch_fpa = FPU_ARCH_FPA;
180 static const arm_feature_set fpu_any_hard = FPU_ANY_HARD;
182 static const arm_feature_set fpu_arch_maverick = FPU_ARCH_MAVERICK;
184 static const arm_feature_set fpu_endian_pure = FPU_ARCH_ENDIAN_PURE;
187 static const arm_feature_set cpu_default = CPU_DEFAULT;
190 static const arm_feature_set arm_ext_v1 = ARM_FEATURE_CORE_LOW (ARM_EXT_V1);
191 static const arm_feature_set arm_ext_v2 = ARM_FEATURE_CORE_LOW (ARM_EXT_V2);
192 static const arm_feature_set arm_ext_v2s = ARM_FEATURE_CORE_LOW (ARM_EXT_V2S);
193 static const arm_feature_set arm_ext_v3 = ARM_FEATURE_CORE_LOW (ARM_EXT_V3);
194 static const arm_feature_set arm_ext_v3m = ARM_FEATURE_CORE_LOW (ARM_EXT_V3M);
195 static const arm_feature_set arm_ext_v4 = ARM_FEATURE_CORE_LOW (ARM_EXT_V4);
196 static const arm_feature_set arm_ext_v4t = ARM_FEATURE_CORE_LOW (ARM_EXT_V4T);
197 static const arm_feature_set arm_ext_v5 = ARM_FEATURE_CORE_LOW (ARM_EXT_V5);
198 static const arm_feature_set arm_ext_v4t_5 =
199 ARM_FEATURE_CORE_LOW (ARM_EXT_V4T | ARM_EXT_V5);
200 static const arm_feature_set arm_ext_v5t = ARM_FEATURE_CORE_LOW (ARM_EXT_V5T);
201 static const arm_feature_set arm_ext_v5e = ARM_FEATURE_CORE_LOW (ARM_EXT_V5E);
202 static const arm_feature_set arm_ext_v5exp = ARM_FEATURE_CORE_LOW (ARM_EXT_V5ExP);
203 static const arm_feature_set arm_ext_v5j = ARM_FEATURE_CORE_LOW (ARM_EXT_V5J);
204 static const arm_feature_set arm_ext_v6 = ARM_FEATURE_CORE_LOW (ARM_EXT_V6);
205 static const arm_feature_set arm_ext_v6k = ARM_FEATURE_CORE_LOW (ARM_EXT_V6K);
206 static const arm_feature_set arm_ext_v6t2 = ARM_FEATURE_CORE_LOW (ARM_EXT_V6T2);
207 /* Only for compatability of hint instructions. */
208 static const arm_feature_set arm_ext_v6k_v6t2 =
209 ARM_FEATURE_CORE_LOW (ARM_EXT_V6K | ARM_EXT_V6T2);
210 static const arm_feature_set arm_ext_v6_notm =
211 ARM_FEATURE_CORE_LOW (ARM_EXT_V6_NOTM);
212 static const arm_feature_set arm_ext_v6_dsp =
213 ARM_FEATURE_CORE_LOW (ARM_EXT_V6_DSP);
214 static const arm_feature_set arm_ext_barrier =
215 ARM_FEATURE_CORE_LOW (ARM_EXT_BARRIER);
216 static const arm_feature_set arm_ext_msr =
217 ARM_FEATURE_CORE_LOW (ARM_EXT_THUMB_MSR);
218 static const arm_feature_set arm_ext_div = ARM_FEATURE_CORE_LOW (ARM_EXT_DIV);
219 static const arm_feature_set arm_ext_v7 = ARM_FEATURE_CORE_LOW (ARM_EXT_V7);
220 static const arm_feature_set arm_ext_v7a = ARM_FEATURE_CORE_LOW (ARM_EXT_V7A);
221 static const arm_feature_set arm_ext_v7r = ARM_FEATURE_CORE_LOW (ARM_EXT_V7R);
223 static const arm_feature_set ATTRIBUTE_UNUSED arm_ext_v7m = ARM_FEATURE_CORE_LOW (ARM_EXT_V7M);
225 static const arm_feature_set arm_ext_v8 = ARM_FEATURE_CORE_LOW (ARM_EXT_V8);
226 static const arm_feature_set arm_ext_m =
227 ARM_FEATURE_CORE (ARM_EXT_V6M | ARM_EXT_V7M,
228 ARM_EXT2_V8M | ARM_EXT2_V8M_MAIN);
229 static const arm_feature_set arm_ext_mp = ARM_FEATURE_CORE_LOW (ARM_EXT_MP);
230 static const arm_feature_set arm_ext_sec = ARM_FEATURE_CORE_LOW (ARM_EXT_SEC);
231 static const arm_feature_set arm_ext_os = ARM_FEATURE_CORE_LOW (ARM_EXT_OS);
232 static const arm_feature_set arm_ext_adiv = ARM_FEATURE_CORE_LOW (ARM_EXT_ADIV);
233 static const arm_feature_set arm_ext_virt = ARM_FEATURE_CORE_LOW (ARM_EXT_VIRT);
234 static const arm_feature_set arm_ext_pan = ARM_FEATURE_CORE_HIGH (ARM_EXT2_PAN);
235 static const arm_feature_set arm_ext_v8m = ARM_FEATURE_CORE_HIGH (ARM_EXT2_V8M);
236 static const arm_feature_set arm_ext_v8m_main =
237 ARM_FEATURE_CORE_HIGH (ARM_EXT2_V8M_MAIN);
238 static const arm_feature_set arm_ext_v8_1m_main =
239 ARM_FEATURE_CORE_HIGH (ARM_EXT2_V8_1M_MAIN);
240 /* Instructions in ARMv8-M only found in M profile architectures. */
241 static const arm_feature_set arm_ext_v8m_m_only =
242 ARM_FEATURE_CORE_HIGH (ARM_EXT2_V8M | ARM_EXT2_V8M_MAIN);
243 static const arm_feature_set arm_ext_v6t2_v8m =
244 ARM_FEATURE_CORE_HIGH (ARM_EXT2_V6T2_V8M);
245 /* Instructions shared between ARMv8-A and ARMv8-M. */
246 static const arm_feature_set arm_ext_atomics =
247 ARM_FEATURE_CORE_HIGH (ARM_EXT2_ATOMICS);
249 /* DSP instructions Tag_DSP_extension refers to. */
250 static const arm_feature_set arm_ext_dsp =
251 ARM_FEATURE_CORE_LOW (ARM_EXT_V5E | ARM_EXT_V5ExP | ARM_EXT_V6_DSP);
253 static const arm_feature_set arm_ext_ras =
254 ARM_FEATURE_CORE_HIGH (ARM_EXT2_RAS);
255 /* FP16 instructions. */
256 static const arm_feature_set arm_ext_fp16 =
257 ARM_FEATURE_CORE_HIGH (ARM_EXT2_FP16_INST);
258 static const arm_feature_set arm_ext_fp16_fml =
259 ARM_FEATURE_CORE_HIGH (ARM_EXT2_FP16_FML);
260 static const arm_feature_set arm_ext_v8_2 =
261 ARM_FEATURE_CORE_HIGH (ARM_EXT2_V8_2A);
262 static const arm_feature_set arm_ext_v8_3 =
263 ARM_FEATURE_CORE_HIGH (ARM_EXT2_V8_3A);
264 static const arm_feature_set arm_ext_sb =
265 ARM_FEATURE_CORE_HIGH (ARM_EXT2_SB);
266 static const arm_feature_set arm_ext_predres =
267 ARM_FEATURE_CORE_HIGH (ARM_EXT2_PREDRES);
269 static const arm_feature_set arm_arch_any = ARM_ANY;
271 static const arm_feature_set fpu_any = FPU_ANY;
273 static const arm_feature_set arm_arch_full ATTRIBUTE_UNUSED = ARM_FEATURE (-1, -1, -1);
274 static const arm_feature_set arm_arch_t2 = ARM_ARCH_THUMB2;
275 static const arm_feature_set arm_arch_none = ARM_ARCH_NONE;
277 static const arm_feature_set arm_cext_iwmmxt2 =
278 ARM_FEATURE_COPROC (ARM_CEXT_IWMMXT2);
279 static const arm_feature_set arm_cext_iwmmxt =
280 ARM_FEATURE_COPROC (ARM_CEXT_IWMMXT);
281 static const arm_feature_set arm_cext_xscale =
282 ARM_FEATURE_COPROC (ARM_CEXT_XSCALE);
283 static const arm_feature_set arm_cext_maverick =
284 ARM_FEATURE_COPROC (ARM_CEXT_MAVERICK);
285 static const arm_feature_set fpu_fpa_ext_v1 =
286 ARM_FEATURE_COPROC (FPU_FPA_EXT_V1);
287 static const arm_feature_set fpu_fpa_ext_v2 =
288 ARM_FEATURE_COPROC (FPU_FPA_EXT_V2);
289 static const arm_feature_set fpu_vfp_ext_v1xd =
290 ARM_FEATURE_COPROC (FPU_VFP_EXT_V1xD);
291 static const arm_feature_set fpu_vfp_ext_v1 =
292 ARM_FEATURE_COPROC (FPU_VFP_EXT_V1);
293 static const arm_feature_set fpu_vfp_ext_v2 =
294 ARM_FEATURE_COPROC (FPU_VFP_EXT_V2);
295 static const arm_feature_set fpu_vfp_ext_v3xd =
296 ARM_FEATURE_COPROC (FPU_VFP_EXT_V3xD);
297 static const arm_feature_set fpu_vfp_ext_v3 =
298 ARM_FEATURE_COPROC (FPU_VFP_EXT_V3);
299 static const arm_feature_set fpu_vfp_ext_d32 =
300 ARM_FEATURE_COPROC (FPU_VFP_EXT_D32);
301 static const arm_feature_set fpu_neon_ext_v1 =
302 ARM_FEATURE_COPROC (FPU_NEON_EXT_V1);
303 static const arm_feature_set fpu_vfp_v3_or_neon_ext =
304 ARM_FEATURE_COPROC (FPU_NEON_EXT_V1 | FPU_VFP_EXT_V3);
305 static const arm_feature_set mve_ext =
306 ARM_FEATURE_COPROC (FPU_MVE);
307 static const arm_feature_set mve_fp_ext =
308 ARM_FEATURE_COPROC (FPU_MVE_FP);
310 static const arm_feature_set fpu_vfp_fp16 =
311 ARM_FEATURE_COPROC (FPU_VFP_EXT_FP16);
312 static const arm_feature_set fpu_neon_ext_fma =
313 ARM_FEATURE_COPROC (FPU_NEON_EXT_FMA);
315 static const arm_feature_set fpu_vfp_ext_fma =
316 ARM_FEATURE_COPROC (FPU_VFP_EXT_FMA);
317 static const arm_feature_set fpu_vfp_ext_armv8 =
318 ARM_FEATURE_COPROC (FPU_VFP_EXT_ARMV8);
319 static const arm_feature_set fpu_vfp_ext_armv8xd =
320 ARM_FEATURE_COPROC (FPU_VFP_EXT_ARMV8xD);
321 static const arm_feature_set fpu_neon_ext_armv8 =
322 ARM_FEATURE_COPROC (FPU_NEON_EXT_ARMV8);
323 static const arm_feature_set fpu_crypto_ext_armv8 =
324 ARM_FEATURE_COPROC (FPU_CRYPTO_EXT_ARMV8);
325 static const arm_feature_set crc_ext_armv8 =
326 ARM_FEATURE_COPROC (CRC_EXT_ARMV8);
327 static const arm_feature_set fpu_neon_ext_v8_1 =
328 ARM_FEATURE_COPROC (FPU_NEON_EXT_RDMA);
329 static const arm_feature_set fpu_neon_ext_dotprod =
330 ARM_FEATURE_COPROC (FPU_NEON_EXT_DOTPROD);
332 static int mfloat_abi_opt = -1;
333 /* Architecture feature bits selected by the last -mcpu/-march or .cpu/.arch
335 static arm_feature_set selected_arch = ARM_ARCH_NONE;
336 /* Extension feature bits selected by the last -mcpu/-march or .arch_extension
338 static arm_feature_set selected_ext = ARM_ARCH_NONE;
339 /* Feature bits selected by the last -mcpu/-march or by the combination of the
340 last .cpu/.arch directive .arch_extension directives since that
342 static arm_feature_set selected_cpu = ARM_ARCH_NONE;
343 /* FPU feature bits selected by the last -mfpu or .fpu directive. */
344 static arm_feature_set selected_fpu = FPU_NONE;
345 /* Feature bits selected by the last .object_arch directive. */
346 static arm_feature_set selected_object_arch = ARM_ARCH_NONE;
347 /* Must be long enough to hold any of the names in arm_cpus. */
348 static char selected_cpu_name[20];
350 extern FLONUM_TYPE generic_floating_point_number;
352 /* Return if no cpu was selected on command-line. */
354 no_cpu_selected (void)
356 return ARM_FEATURE_EQUAL (selected_cpu, arm_arch_none);
361 static int meabi_flags = EABI_DEFAULT;
363 static int meabi_flags = EF_ARM_EABI_UNKNOWN;
366 static int attributes_set_explicitly[NUM_KNOWN_OBJ_ATTRIBUTES];
371 return (EF_ARM_EABI_VERSION (meabi_flags) >= EF_ARM_EABI_VER4);
376 /* Pre-defined "_GLOBAL_OFFSET_TABLE_" */
377 symbolS * GOT_symbol;
380 /* 0: assemble for ARM,
381 1: assemble for Thumb,
382 2: assemble for Thumb even though target CPU does not support thumb
384 static int thumb_mode = 0;
385 /* A value distinct from the possible values for thumb_mode that we
386 can use to record whether thumb_mode has been copied into the
387 tc_frag_data field of a frag. */
388 #define MODE_RECORDED (1 << 4)
390 /* Specifies the intrinsic IT insn behavior mode. */
391 enum implicit_it_mode
393 IMPLICIT_IT_MODE_NEVER = 0x00,
394 IMPLICIT_IT_MODE_ARM = 0x01,
395 IMPLICIT_IT_MODE_THUMB = 0x02,
396 IMPLICIT_IT_MODE_ALWAYS = (IMPLICIT_IT_MODE_ARM | IMPLICIT_IT_MODE_THUMB)
398 static int implicit_it_mode = IMPLICIT_IT_MODE_ARM;
400 /* If unified_syntax is true, we are processing the new unified
401 ARM/Thumb syntax. Important differences from the old ARM mode:
403 - Immediate operands do not require a # prefix.
404 - Conditional affixes always appear at the end of the
405 instruction. (For backward compatibility, those instructions
406 that formerly had them in the middle, continue to accept them
408 - The IT instruction may appear, and if it does is validated
409 against subsequent conditional affixes. It does not generate
412 Important differences from the old Thumb mode:
414 - Immediate operands do not require a # prefix.
415 - Most of the V6T2 instructions are only available in unified mode.
416 - The .N and .W suffixes are recognized and honored (it is an error
417 if they cannot be honored).
418 - All instructions set the flags if and only if they have an 's' affix.
419 - Conditional affixes may be used. They are validated against
420 preceding IT instructions. Unlike ARM mode, you cannot use a
421 conditional affix except in the scope of an IT instruction. */
423 static bfd_boolean unified_syntax = FALSE;
425 /* An immediate operand can start with #, and ld*, st*, pld operands
426 can contain [ and ]. We need to tell APP not to elide whitespace
427 before a [, which can appear as the first operand for pld.
428 Likewise, a { can appear as the first operand for push, pop, vld*, etc. */
429 const char arm_symbol_chars[] = "#[]{}";
444 enum neon_el_type type;
448 #define NEON_MAX_TYPE_ELS 4
452 struct neon_type_el el[NEON_MAX_TYPE_ELS];
456 enum pred_instruction_type
462 IF_INSIDE_IT_LAST_INSN, /* Either outside or inside;
463 if inside, should be the last one. */
464 NEUTRAL_IT_INSN, /* This could be either inside or outside,
465 i.e. BKPT and NOP. */
466 IT_INSN, /* The IT insn has been parsed. */
467 VPT_INSN, /* The VPT/VPST insn has been parsed. */
468 MVE_OUTSIDE_PRED_INSN , /* Instruction to indicate a MVE instruction without
469 a predication code. */
470 MVE_UNPREDICABLE_INSN /* MVE instruction that is non-predicable. */
473 /* The maximum number of operands we need. */
474 #define ARM_IT_MAX_OPERANDS 6
475 #define ARM_IT_MAX_RELOCS 3
480 unsigned long instruction;
484 /* "uncond_value" is set to the value in place of the conditional field in
485 unconditional versions of the instruction, or -1 if nothing is
488 struct neon_type vectype;
489 /* This does not indicate an actual NEON instruction, only that
490 the mnemonic accepts neon-style type suffixes. */
492 /* Set to the opcode if the instruction needs relaxation.
493 Zero if the instruction is not relaxed. */
497 bfd_reloc_code_real_type type;
500 } relocs[ARM_IT_MAX_RELOCS];
502 enum pred_instruction_type pred_insn_type;
508 struct neon_type_el vectype;
509 unsigned present : 1; /* Operand present. */
510 unsigned isreg : 1; /* Operand was a register. */
511 unsigned immisreg : 2; /* .imm field is a second register.
512 0: imm, 1: gpr, 2: MVE Q-register. */
513 unsigned isscalar : 2; /* Operand is a (SIMD) scalar:
517 unsigned immisalign : 1; /* Immediate is an alignment specifier. */
518 unsigned immisfloat : 1; /* Immediate was parsed as a float. */
519 /* Note: we abuse "regisimm" to mean "is Neon register" in VMOV
520 instructions. This allows us to disambiguate ARM <-> vector insns. */
521 unsigned regisimm : 1; /* 64-bit immediate, reg forms high 32 bits. */
522 unsigned isvec : 1; /* Is a single, double or quad VFP/Neon reg. */
523 unsigned isquad : 1; /* Operand is SIMD quad register. */
524 unsigned issingle : 1; /* Operand is VFP single-precision register. */
525 unsigned iszr : 1; /* Operand is ZR register. */
526 unsigned hasreloc : 1; /* Operand has relocation suffix. */
527 unsigned writeback : 1; /* Operand has trailing ! */
528 unsigned preind : 1; /* Preindexed address. */
529 unsigned postind : 1; /* Postindexed address. */
530 unsigned negative : 1; /* Index register was negated. */
531 unsigned shifted : 1; /* Shift applied to operation. */
532 unsigned shift_kind : 3; /* Shift operation (enum shift_kind). */
533 } operands[ARM_IT_MAX_OPERANDS];
536 static struct arm_it inst;
538 #define NUM_FLOAT_VALS 8
540 const char * fp_const[] =
542 "0.0", "1.0", "2.0", "3.0", "4.0", "5.0", "0.5", "10.0", 0
545 LITTLENUM_TYPE fp_values[NUM_FLOAT_VALS][MAX_LITTLENUMS];
555 #define CP_T_X 0x00008000
556 #define CP_T_Y 0x00400000
558 #define CONDS_BIT 0x00100000
559 #define LOAD_BIT 0x00100000
561 #define DOUBLE_LOAD_FLAG 0x00000001
565 const char * template_name;
569 #define COND_ALWAYS 0xE
573 const char * template_name;
577 struct asm_barrier_opt
579 const char * template_name;
581 const arm_feature_set arch;
584 /* The bit that distinguishes CPSR and SPSR. */
585 #define SPSR_BIT (1 << 22)
587 /* The individual PSR flag bits. */
588 #define PSR_c (1 << 16)
589 #define PSR_x (1 << 17)
590 #define PSR_s (1 << 18)
591 #define PSR_f (1 << 19)
596 bfd_reloc_code_real_type reloc;
601 VFP_REG_Sd, VFP_REG_Sm, VFP_REG_Sn,
602 VFP_REG_Dd, VFP_REG_Dm, VFP_REG_Dn
607 VFP_LDSTMIA, VFP_LDSTMDB, VFP_LDSTMIAX, VFP_LDSTMDBX
610 /* Bits for DEFINED field in neon_typed_alias. */
611 #define NTA_HASTYPE 1
612 #define NTA_HASINDEX 2
614 struct neon_typed_alias
616 unsigned char defined;
618 struct neon_type_el eltype;
621 /* ARM register categories. This includes coprocessor numbers and various
622 architecture extensions' registers. Each entry should have an error message
623 in reg_expected_msgs below. */
653 /* Structure for a hash table entry for a register.
654 If TYPE is REG_TYPE_VFD or REG_TYPE_NQ, the NEON field can point to extra
655 information which states whether a vector type or index is specified (for a
656 register alias created with .dn or .qn). Otherwise NEON should be NULL. */
662 unsigned char builtin;
663 struct neon_typed_alias * neon;
666 /* Diagnostics used when we don't get a register of the expected type. */
667 const char * const reg_expected_msgs[] =
669 [REG_TYPE_RN] = N_("ARM register expected"),
670 [REG_TYPE_CP] = N_("bad or missing co-processor number"),
671 [REG_TYPE_CN] = N_("co-processor register expected"),
672 [REG_TYPE_FN] = N_("FPA register expected"),
673 [REG_TYPE_VFS] = N_("VFP single precision register expected"),
674 [REG_TYPE_VFD] = N_("VFP/Neon double precision register expected"),
675 [REG_TYPE_NQ] = N_("Neon quad precision register expected"),
676 [REG_TYPE_VFSD] = N_("VFP single or double precision register expected"),
677 [REG_TYPE_NDQ] = N_("Neon double or quad precision register expected"),
678 [REG_TYPE_NSD] = N_("Neon single or double precision register expected"),
679 [REG_TYPE_NSDQ] = N_("VFP single, double or Neon quad precision register"
681 [REG_TYPE_VFC] = N_("VFP system register expected"),
682 [REG_TYPE_MVF] = N_("Maverick MVF register expected"),
683 [REG_TYPE_MVD] = N_("Maverick MVD register expected"),
684 [REG_TYPE_MVFX] = N_("Maverick MVFX register expected"),
685 [REG_TYPE_MVDX] = N_("Maverick MVDX register expected"),
686 [REG_TYPE_MVAX] = N_("Maverick MVAX register expected"),
687 [REG_TYPE_DSPSC] = N_("Maverick DSPSC register expected"),
688 [REG_TYPE_MMXWR] = N_("iWMMXt data register expected"),
689 [REG_TYPE_MMXWC] = N_("iWMMXt control register expected"),
690 [REG_TYPE_MMXWCG] = N_("iWMMXt scalar register expected"),
691 [REG_TYPE_XSCALE] = N_("XScale accumulator register expected"),
692 [REG_TYPE_MQ] = N_("MVE vector register expected"),
693 [REG_TYPE_RNB] = N_("")
696 /* Some well known registers that we refer to directly elsewhere. */
702 /* ARM instructions take 4bytes in the object file, Thumb instructions
708 /* Basic string to match. */
709 const char * template_name;
711 /* Parameters to instruction. */
712 unsigned int operands[8];
714 /* Conditional tag - see opcode_lookup. */
715 unsigned int tag : 4;
717 /* Basic instruction code. */
720 /* Thumb-format instruction code. */
723 /* Which architecture variant provides this instruction. */
724 const arm_feature_set * avariant;
725 const arm_feature_set * tvariant;
727 /* Function to call to encode instruction in ARM format. */
728 void (* aencode) (void);
730 /* Function to call to encode instruction in Thumb format. */
731 void (* tencode) (void);
733 /* Indicates whether this instruction may be vector predicated. */
734 unsigned int mayBeVecPred : 1;
737 /* Defines for various bits that we will want to toggle. */
738 #define INST_IMMEDIATE 0x02000000
739 #define OFFSET_REG 0x02000000
740 #define HWOFFSET_IMM 0x00400000
741 #define SHIFT_BY_REG 0x00000010
742 #define PRE_INDEX 0x01000000
743 #define INDEX_UP 0x00800000
744 #define WRITE_BACK 0x00200000
745 #define LDM_TYPE_2_OR_3 0x00400000
746 #define CPSI_MMOD 0x00020000
748 #define LITERAL_MASK 0xf000f000
749 #define OPCODE_MASK 0xfe1fffff
750 #define V4_STR_BIT 0x00000020
751 #define VLDR_VMOV_SAME 0x0040f000
753 #define T2_SUBS_PC_LR 0xf3de8f00
755 #define DATA_OP_SHIFT 21
756 #define SBIT_SHIFT 20
758 #define T2_OPCODE_MASK 0xfe1fffff
759 #define T2_DATA_OP_SHIFT 21
760 #define T2_SBIT_SHIFT 20
762 #define A_COND_MASK 0xf0000000
763 #define A_PUSH_POP_OP_MASK 0x0fff0000
765 /* Opcodes for pushing/poping registers to/from the stack. */
766 #define A1_OPCODE_PUSH 0x092d0000
767 #define A2_OPCODE_PUSH 0x052d0004
768 #define A2_OPCODE_POP 0x049d0004
770 /* Codes to distinguish the arithmetic instructions. */
781 #define OPCODE_CMP 10
782 #define OPCODE_CMN 11
783 #define OPCODE_ORR 12
784 #define OPCODE_MOV 13
785 #define OPCODE_BIC 14
786 #define OPCODE_MVN 15
788 #define T2_OPCODE_AND 0
789 #define T2_OPCODE_BIC 1
790 #define T2_OPCODE_ORR 2
791 #define T2_OPCODE_ORN 3
792 #define T2_OPCODE_EOR 4
793 #define T2_OPCODE_ADD 8
794 #define T2_OPCODE_ADC 10
795 #define T2_OPCODE_SBC 11
796 #define T2_OPCODE_SUB 13
797 #define T2_OPCODE_RSB 14
799 #define T_OPCODE_MUL 0x4340
800 #define T_OPCODE_TST 0x4200
801 #define T_OPCODE_CMN 0x42c0
802 #define T_OPCODE_NEG 0x4240
803 #define T_OPCODE_MVN 0x43c0
805 #define T_OPCODE_ADD_R3 0x1800
806 #define T_OPCODE_SUB_R3 0x1a00
807 #define T_OPCODE_ADD_HI 0x4400
808 #define T_OPCODE_ADD_ST 0xb000
809 #define T_OPCODE_SUB_ST 0xb080
810 #define T_OPCODE_ADD_SP 0xa800
811 #define T_OPCODE_ADD_PC 0xa000
812 #define T_OPCODE_ADD_I8 0x3000
813 #define T_OPCODE_SUB_I8 0x3800
814 #define T_OPCODE_ADD_I3 0x1c00
815 #define T_OPCODE_SUB_I3 0x1e00
817 #define T_OPCODE_ASR_R 0x4100
818 #define T_OPCODE_LSL_R 0x4080
819 #define T_OPCODE_LSR_R 0x40c0
820 #define T_OPCODE_ROR_R 0x41c0
821 #define T_OPCODE_ASR_I 0x1000
822 #define T_OPCODE_LSL_I 0x0000
823 #define T_OPCODE_LSR_I 0x0800
825 #define T_OPCODE_MOV_I8 0x2000
826 #define T_OPCODE_CMP_I8 0x2800
827 #define T_OPCODE_CMP_LR 0x4280
828 #define T_OPCODE_MOV_HR 0x4600
829 #define T_OPCODE_CMP_HR 0x4500
831 #define T_OPCODE_LDR_PC 0x4800
832 #define T_OPCODE_LDR_SP 0x9800
833 #define T_OPCODE_STR_SP 0x9000
834 #define T_OPCODE_LDR_IW 0x6800
835 #define T_OPCODE_STR_IW 0x6000
836 #define T_OPCODE_LDR_IH 0x8800
837 #define T_OPCODE_STR_IH 0x8000
838 #define T_OPCODE_LDR_IB 0x7800
839 #define T_OPCODE_STR_IB 0x7000
840 #define T_OPCODE_LDR_RW 0x5800
841 #define T_OPCODE_STR_RW 0x5000
842 #define T_OPCODE_LDR_RH 0x5a00
843 #define T_OPCODE_STR_RH 0x5200
844 #define T_OPCODE_LDR_RB 0x5c00
845 #define T_OPCODE_STR_RB 0x5400
847 #define T_OPCODE_PUSH 0xb400
848 #define T_OPCODE_POP 0xbc00
850 #define T_OPCODE_BRANCH 0xe000
852 #define THUMB_SIZE 2 /* Size of thumb instruction. */
853 #define THUMB_PP_PC_LR 0x0100
854 #define THUMB_LOAD_BIT 0x0800
855 #define THUMB2_LOAD_BIT 0x00100000
857 #define BAD_SYNTAX _("syntax error")
858 #define BAD_ARGS _("bad arguments to instruction")
859 #define BAD_SP _("r13 not allowed here")
860 #define BAD_PC _("r15 not allowed here")
861 #define BAD_ODD _("Odd register not allowed here")
862 #define BAD_EVEN _("Even register not allowed here")
863 #define BAD_COND _("instruction cannot be conditional")
864 #define BAD_OVERLAP _("registers may not be the same")
865 #define BAD_HIREG _("lo register required")
866 #define BAD_THUMB32 _("instruction not supported in Thumb16 mode")
867 #define BAD_ADDR_MODE _("instruction does not accept this addressing mode")
868 #define BAD_BRANCH _("branch must be last instruction in IT block")
869 #define BAD_BRANCH_OFF _("branch out of range or not a multiple of 2")
870 #define BAD_NOT_IT _("instruction not allowed in IT block")
871 #define BAD_NOT_VPT _("instruction missing MVE vector predication code")
872 #define BAD_FPU _("selected FPU does not support instruction")
873 #define BAD_OUT_IT _("thumb conditional instruction should be in IT block")
874 #define BAD_OUT_VPT \
875 _("vector predicated instruction should be in VPT/VPST block")
876 #define BAD_IT_COND _("incorrect condition in IT block")
877 #define BAD_VPT_COND _("incorrect condition in VPT/VPST block")
878 #define BAD_IT_IT _("IT falling in the range of a previous IT block")
879 #define MISSING_FNSTART _("missing .fnstart before unwinding directive")
880 #define BAD_PC_ADDRESSING \
881 _("cannot use register index with PC-relative addressing")
882 #define BAD_PC_WRITEBACK \
883 _("cannot use writeback with PC-relative addressing")
884 #define BAD_RANGE _("branch out of range")
885 #define BAD_FP16 _("selected processor does not support fp16 instruction")
886 #define UNPRED_REG(R) _("using " R " results in unpredictable behaviour")
887 #define THUMB1_RELOC_ONLY _("relocation valid in thumb1 code only")
888 #define MVE_NOT_IT _("Warning: instruction is UNPREDICTABLE in an IT " \
890 #define MVE_NOT_VPT _("Warning: instruction is UNPREDICTABLE in a VPT " \
892 #define MVE_BAD_PC _("Warning: instruction is UNPREDICTABLE with PC" \
894 #define MVE_BAD_SP _("Warning: instruction is UNPREDICTABLE with SP" \
896 #define BAD_SIMD_TYPE _("bad type in SIMD instruction")
897 #define BAD_MVE_AUTO \
898 _("GAS auto-detection mode and -march=all is deprecated for MVE, please" \
899 " use a valid -march or -mcpu option.")
900 #define BAD_MVE_SRCDEST _("Warning: 32-bit element size and same destination "\
901 "and source operands makes instruction UNPREDICTABLE")
902 #define BAD_EL_TYPE _("bad element type for instruction")
903 #define MVE_BAD_QREG _("MVE vector register Q[0..7] expected")
905 static struct hash_control * arm_ops_hsh;
906 static struct hash_control * arm_cond_hsh;
907 static struct hash_control * arm_vcond_hsh;
908 static struct hash_control * arm_shift_hsh;
909 static struct hash_control * arm_psr_hsh;
910 static struct hash_control * arm_v7m_psr_hsh;
911 static struct hash_control * arm_reg_hsh;
912 static struct hash_control * arm_reloc_hsh;
913 static struct hash_control * arm_barrier_opt_hsh;
915 /* Stuff needed to resolve the label ambiguity
924 symbolS * last_label_seen;
925 static int label_is_thumb_function_name = FALSE;
927 /* Literal pool structure. Held on a per-section
928 and per-sub-section basis. */
930 #define MAX_LITERAL_POOL_SIZE 1024
931 typedef struct literal_pool
933 expressionS literals [MAX_LITERAL_POOL_SIZE];
934 unsigned int next_free_entry;
940 struct dwarf2_line_info locs [MAX_LITERAL_POOL_SIZE];
942 struct literal_pool * next;
943 unsigned int alignment;
946 /* Pointer to a linked list of literal pools. */
947 literal_pool * list_of_pools = NULL;
949 typedef enum asmfunc_states
952 WAITING_ASMFUNC_NAME,
956 static asmfunc_states asmfunc_state = OUTSIDE_ASMFUNC;
959 # define now_pred seg_info (now_seg)->tc_segment_info_data.current_pred
961 static struct current_pred now_pred;
965 now_pred_compatible (int cond)
967 return (cond & ~1) == (now_pred.cc & ~1);
971 conditional_insn (void)
973 return inst.cond != COND_ALWAYS;
976 static int in_pred_block (void);
978 static int handle_pred_state (void);
980 static void force_automatic_it_block_close (void);
982 static void it_fsm_post_encode (void);
984 #define set_pred_insn_type(type) \
987 inst.pred_insn_type = type; \
988 if (handle_pred_state () == FAIL) \
993 #define set_pred_insn_type_nonvoid(type, failret) \
996 inst.pred_insn_type = type; \
997 if (handle_pred_state () == FAIL) \
1002 #define set_pred_insn_type_last() \
1005 if (inst.cond == COND_ALWAYS) \
1006 set_pred_insn_type (IF_INSIDE_IT_LAST_INSN); \
1008 set_pred_insn_type (INSIDE_IT_LAST_INSN); \
1012 /* Toggle value[pos]. */
1013 #define TOGGLE_BIT(value, pos) (value ^ (1 << pos))
1017 /* This array holds the chars that always start a comment. If the
1018 pre-processor is disabled, these aren't very useful. */
1019 char arm_comment_chars[] = "@";
1021 /* This array holds the chars that only start a comment at the beginning of
1022 a line. If the line seems to have the form '# 123 filename'
1023 .line and .file directives will appear in the pre-processed output. */
1024 /* Note that input_file.c hand checks for '#' at the beginning of the
1025 first line of the input file. This is because the compiler outputs
1026 #NO_APP at the beginning of its output. */
1027 /* Also note that comments like this one will always work. */
1028 const char line_comment_chars[] = "#";
1030 char arm_line_separator_chars[] = ";";
1032 /* Chars that can be used to separate mant
1033 from exp in floating point numbers. */
1034 const char EXP_CHARS[] = "eE";
1036 /* Chars that mean this number is a floating point constant. */
1037 /* As in 0f12.456 */
1038 /* or 0d1.2345e12 */
1040 const char FLT_CHARS[] = "rRsSfFdDxXeEpP";
1042 /* Prefix characters that indicate the start of an immediate
1044 #define is_immediate_prefix(C) ((C) == '#' || (C) == '$')
1046 /* Separator character handling. */
1048 #define skip_whitespace(str) do { if (*(str) == ' ') ++(str); } while (0)
1051 skip_past_char (char ** str, char c)
1053 /* PR gas/14987: Allow for whitespace before the expected character. */
1054 skip_whitespace (*str);
1065 #define skip_past_comma(str) skip_past_char (str, ',')
1067 /* Arithmetic expressions (possibly involving symbols). */
1069 /* Return TRUE if anything in the expression is a bignum. */
1072 walk_no_bignums (symbolS * sp)
1074 if (symbol_get_value_expression (sp)->X_op == O_big)
1077 if (symbol_get_value_expression (sp)->X_add_symbol)
1079 return (walk_no_bignums (symbol_get_value_expression (sp)->X_add_symbol)
1080 || (symbol_get_value_expression (sp)->X_op_symbol
1081 && walk_no_bignums (symbol_get_value_expression (sp)->X_op_symbol)));
1087 static bfd_boolean in_my_get_expression = FALSE;
1089 /* Third argument to my_get_expression. */
1090 #define GE_NO_PREFIX 0
1091 #define GE_IMM_PREFIX 1
1092 #define GE_OPT_PREFIX 2
1093 /* This is a bit of a hack. Use an optional prefix, and also allow big (64-bit)
1094 immediates, as can be used in Neon VMVN and VMOV immediate instructions. */
1095 #define GE_OPT_PREFIX_BIG 3
1098 my_get_expression (expressionS * ep, char ** str, int prefix_mode)
1102 /* In unified syntax, all prefixes are optional. */
1104 prefix_mode = (prefix_mode == GE_OPT_PREFIX_BIG) ? prefix_mode
1107 switch (prefix_mode)
1109 case GE_NO_PREFIX: break;
1111 if (!is_immediate_prefix (**str))
1113 inst.error = _("immediate expression requires a # prefix");
1119 case GE_OPT_PREFIX_BIG:
1120 if (is_immediate_prefix (**str))
1127 memset (ep, 0, sizeof (expressionS));
1129 save_in = input_line_pointer;
1130 input_line_pointer = *str;
1131 in_my_get_expression = TRUE;
1133 in_my_get_expression = FALSE;
1135 if (ep->X_op == O_illegal || ep->X_op == O_absent)
1137 /* We found a bad or missing expression in md_operand(). */
1138 *str = input_line_pointer;
1139 input_line_pointer = save_in;
1140 if (inst.error == NULL)
1141 inst.error = (ep->X_op == O_absent
1142 ? _("missing expression") :_("bad expression"));
1146 /* Get rid of any bignums now, so that we don't generate an error for which
1147 we can't establish a line number later on. Big numbers are never valid
1148 in instructions, which is where this routine is always called. */
1149 if (prefix_mode != GE_OPT_PREFIX_BIG
1150 && (ep->X_op == O_big
1151 || (ep->X_add_symbol
1152 && (walk_no_bignums (ep->X_add_symbol)
1154 && walk_no_bignums (ep->X_op_symbol))))))
1156 inst.error = _("invalid constant");
1157 *str = input_line_pointer;
1158 input_line_pointer = save_in;
1162 *str = input_line_pointer;
1163 input_line_pointer = save_in;
1167 /* Turn a string in input_line_pointer into a floating point constant
1168 of type TYPE, and store the appropriate bytes in *LITP. The number
1169 of LITTLENUMS emitted is stored in *SIZEP. An error message is
1170 returned, or NULL on OK.
1172 Note that fp constants aren't represent in the normal way on the ARM.
1173 In big endian mode, things are as expected. However, in little endian
1174 mode fp constants are big-endian word-wise, and little-endian byte-wise
1175 within the words. For example, (double) 1.1 in big endian mode is
1176 the byte sequence 3f f1 99 99 99 99 99 9a, and in little endian mode is
1177 the byte sequence 99 99 f1 3f 9a 99 99 99.
1179 ??? The format of 12 byte floats is uncertain according to gcc's arm.h. */
1182 md_atof (int type, char * litP, int * sizeP)
1185 LITTLENUM_TYPE words[MAX_LITTLENUMS];
1217 return _("Unrecognized or unsupported floating point constant");
1220 t = atof_ieee (input_line_pointer, type, words);
1222 input_line_pointer = t;
1223 *sizeP = prec * sizeof (LITTLENUM_TYPE);
1225 if (target_big_endian)
1227 for (i = 0; i < prec; i++)
1229 md_number_to_chars (litP, (valueT) words[i], sizeof (LITTLENUM_TYPE));
1230 litP += sizeof (LITTLENUM_TYPE);
1235 if (ARM_CPU_HAS_FEATURE (cpu_variant, fpu_endian_pure))
1236 for (i = prec - 1; i >= 0; i--)
1238 md_number_to_chars (litP, (valueT) words[i], sizeof (LITTLENUM_TYPE));
1239 litP += sizeof (LITTLENUM_TYPE);
1242 /* For a 4 byte float the order of elements in `words' is 1 0.
1243 For an 8 byte float the order is 1 0 3 2. */
1244 for (i = 0; i < prec; i += 2)
1246 md_number_to_chars (litP, (valueT) words[i + 1],
1247 sizeof (LITTLENUM_TYPE));
1248 md_number_to_chars (litP + sizeof (LITTLENUM_TYPE),
1249 (valueT) words[i], sizeof (LITTLENUM_TYPE));
1250 litP += 2 * sizeof (LITTLENUM_TYPE);
1257 /* We handle all bad expressions here, so that we can report the faulty
1258 instruction in the error message. */
1261 md_operand (expressionS * exp)
1263 if (in_my_get_expression)
1264 exp->X_op = O_illegal;
1267 /* Immediate values. */
1270 /* Generic immediate-value read function for use in directives.
1271 Accepts anything that 'expression' can fold to a constant.
1272 *val receives the number. */
1275 immediate_for_directive (int *val)
1278 exp.X_op = O_illegal;
1280 if (is_immediate_prefix (*input_line_pointer))
1282 input_line_pointer++;
1286 if (exp.X_op != O_constant)
1288 as_bad (_("expected #constant"));
1289 ignore_rest_of_line ();
1292 *val = exp.X_add_number;
1297 /* Register parsing. */
1299 /* Generic register parser. CCP points to what should be the
1300 beginning of a register name. If it is indeed a valid register
1301 name, advance CCP over it and return the reg_entry structure;
1302 otherwise return NULL. Does not issue diagnostics. */
1304 static struct reg_entry *
1305 arm_reg_parse_multi (char **ccp)
1309 struct reg_entry *reg;
1311 skip_whitespace (start);
1313 #ifdef REGISTER_PREFIX
1314 if (*start != REGISTER_PREFIX)
1318 #ifdef OPTIONAL_REGISTER_PREFIX
1319 if (*start == OPTIONAL_REGISTER_PREFIX)
1324 if (!ISALPHA (*p) || !is_name_beginner (*p))
1329 while (ISALPHA (*p) || ISDIGIT (*p) || *p == '_');
1331 reg = (struct reg_entry *) hash_find_n (arm_reg_hsh, start, p - start);
1341 arm_reg_alt_syntax (char **ccp, char *start, struct reg_entry *reg,
1342 enum arm_reg_type type)
1344 /* Alternative syntaxes are accepted for a few register classes. */
1351 /* Generic coprocessor register names are allowed for these. */
1352 if (reg && reg->type == REG_TYPE_CN)
1357 /* For backward compatibility, a bare number is valid here. */
1359 unsigned long processor = strtoul (start, ccp, 10);
1360 if (*ccp != start && processor <= 15)
1365 case REG_TYPE_MMXWC:
1366 /* WC includes WCG. ??? I'm not sure this is true for all
1367 instructions that take WC registers. */
1368 if (reg && reg->type == REG_TYPE_MMXWCG)
1379 /* As arm_reg_parse_multi, but the register must be of type TYPE, and the
1380 return value is the register number or FAIL. */
1383 arm_reg_parse (char **ccp, enum arm_reg_type type)
1386 struct reg_entry *reg = arm_reg_parse_multi (ccp);
1389 /* Do not allow a scalar (reg+index) to parse as a register. */
1390 if (reg && reg->neon && (reg->neon->defined & NTA_HASINDEX))
1393 if (reg && reg->type == type)
1396 if ((ret = arm_reg_alt_syntax (ccp, start, reg, type)) != FAIL)
1403 /* Parse a Neon type specifier. *STR should point at the leading '.'
1404 character. Does no verification at this stage that the type fits the opcode
1411 Can all be legally parsed by this function.
1413 Fills in neon_type struct pointer with parsed information, and updates STR
1414 to point after the parsed type specifier. Returns SUCCESS if this was a legal
1415 type, FAIL if not. */
1418 parse_neon_type (struct neon_type *type, char **str)
1425 while (type->elems < NEON_MAX_TYPE_ELS)
1427 enum neon_el_type thistype = NT_untyped;
1428 unsigned thissize = -1u;
1435 /* Just a size without an explicit type. */
1439 switch (TOLOWER (*ptr))
1441 case 'i': thistype = NT_integer; break;
1442 case 'f': thistype = NT_float; break;
1443 case 'p': thistype = NT_poly; break;
1444 case 's': thistype = NT_signed; break;
1445 case 'u': thistype = NT_unsigned; break;
1447 thistype = NT_float;
1452 as_bad (_("unexpected character `%c' in type specifier"), *ptr);
1458 /* .f is an abbreviation for .f32. */
1459 if (thistype == NT_float && !ISDIGIT (*ptr))
1464 thissize = strtoul (ptr, &ptr, 10);
1466 if (thissize != 8 && thissize != 16 && thissize != 32
1469 as_bad (_("bad size %d in type specifier"), thissize);
1477 type->el[type->elems].type = thistype;
1478 type->el[type->elems].size = thissize;
1483 /* Empty/missing type is not a successful parse. */
1484 if (type->elems == 0)
1492 /* Errors may be set multiple times during parsing or bit encoding
1493 (particularly in the Neon bits), but usually the earliest error which is set
1494 will be the most meaningful. Avoid overwriting it with later (cascading)
1495 errors by calling this function. */
1498 first_error (const char *err)
1504 /* Parse a single type, e.g. ".s32", leading period included. */
1506 parse_neon_operand_type (struct neon_type_el *vectype, char **ccp)
1509 struct neon_type optype;
1513 if (parse_neon_type (&optype, &str) == SUCCESS)
1515 if (optype.elems == 1)
1516 *vectype = optype.el[0];
1519 first_error (_("only one type should be specified for operand"));
1525 first_error (_("vector type expected"));
1537 /* Special meanings for indices (which have a range of 0-7), which will fit into
1540 #define NEON_ALL_LANES 15
1541 #define NEON_INTERLEAVE_LANES 14
1543 /* Record a use of the given feature. */
1545 record_feature_use (const arm_feature_set *feature)
1548 ARM_MERGE_FEATURE_SETS (thumb_arch_used, thumb_arch_used, *feature);
1550 ARM_MERGE_FEATURE_SETS (arm_arch_used, arm_arch_used, *feature);
1553 /* If the given feature available in the selected CPU, mark it as used.
1554 Returns TRUE iff feature is available. */
1556 mark_feature_used (const arm_feature_set *feature)
1559 /* Do not support the use of MVE only instructions when in auto-detection or
1561 if (((feature == &mve_ext) || (feature == &mve_fp_ext))
1562 && ARM_CPU_IS_ANY (cpu_variant))
1564 first_error (BAD_MVE_AUTO);
1567 /* Ensure the option is valid on the current architecture. */
1568 if (!ARM_CPU_HAS_FEATURE (cpu_variant, *feature))
1571 /* Add the appropriate architecture feature for the barrier option used.
1573 record_feature_use (feature);
1578 /* Parse either a register or a scalar, with an optional type. Return the
1579 register number, and optionally fill in the actual type of the register
1580 when multiple alternatives were given (NEON_TYPE_NDQ) in *RTYPE, and
1581 type/index information in *TYPEINFO. */
1584 parse_typed_reg_or_scalar (char **ccp, enum arm_reg_type type,
1585 enum arm_reg_type *rtype,
1586 struct neon_typed_alias *typeinfo)
1589 struct reg_entry *reg = arm_reg_parse_multi (&str);
1590 struct neon_typed_alias atype;
1591 struct neon_type_el parsetype;
1595 atype.eltype.type = NT_invtype;
1596 atype.eltype.size = -1;
1598 /* Try alternate syntax for some types of register. Note these are mutually
1599 exclusive with the Neon syntax extensions. */
1602 int altreg = arm_reg_alt_syntax (&str, *ccp, reg, type);
1610 /* Undo polymorphism when a set of register types may be accepted. */
1611 if ((type == REG_TYPE_NDQ
1612 && (reg->type == REG_TYPE_NQ || reg->type == REG_TYPE_VFD))
1613 || (type == REG_TYPE_VFSD
1614 && (reg->type == REG_TYPE_VFS || reg->type == REG_TYPE_VFD))
1615 || (type == REG_TYPE_NSDQ
1616 && (reg->type == REG_TYPE_VFS || reg->type == REG_TYPE_VFD
1617 || reg->type == REG_TYPE_NQ))
1618 || (type == REG_TYPE_NSD
1619 && (reg->type == REG_TYPE_VFS || reg->type == REG_TYPE_VFD))
1620 || (type == REG_TYPE_MMXWC
1621 && (reg->type == REG_TYPE_MMXWCG)))
1622 type = (enum arm_reg_type) reg->type;
1624 if (type == REG_TYPE_MQ)
1626 if (!ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext))
1629 if (!reg || reg->type != REG_TYPE_NQ)
1632 if (reg->number > 14 && !mark_feature_used (&fpu_vfp_ext_d32))
1634 first_error (_("expected MVE register [q0..q7]"));
1639 else if (ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext)
1640 && (type == REG_TYPE_NQ))
1644 if (type != reg->type)
1650 if (parse_neon_operand_type (&parsetype, &str) == SUCCESS)
1652 if ((atype.defined & NTA_HASTYPE) != 0)
1654 first_error (_("can't redefine type for operand"));
1657 atype.defined |= NTA_HASTYPE;
1658 atype.eltype = parsetype;
1661 if (skip_past_char (&str, '[') == SUCCESS)
1663 if (type != REG_TYPE_VFD
1664 && !(type == REG_TYPE_VFS
1665 && ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v8_2))
1666 && !(type == REG_TYPE_NQ
1667 && ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext)))
1669 if (ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext))
1670 first_error (_("only D and Q registers may be indexed"));
1672 first_error (_("only D registers may be indexed"));
1676 if ((atype.defined & NTA_HASINDEX) != 0)
1678 first_error (_("can't change index for operand"));
1682 atype.defined |= NTA_HASINDEX;
1684 if (skip_past_char (&str, ']') == SUCCESS)
1685 atype.index = NEON_ALL_LANES;
1690 my_get_expression (&exp, &str, GE_NO_PREFIX);
1692 if (exp.X_op != O_constant)
1694 first_error (_("constant expression required"));
1698 if (skip_past_char (&str, ']') == FAIL)
1701 atype.index = exp.X_add_number;
1716 /* Like arm_reg_parse, but also allow the following extra features:
1717 - If RTYPE is non-zero, return the (possibly restricted) type of the
1718 register (e.g. Neon double or quad reg when either has been requested).
1719 - If this is a Neon vector type with additional type information, fill
1720 in the struct pointed to by VECTYPE (if non-NULL).
1721 This function will fault on encountering a scalar. */
1724 arm_typed_reg_parse (char **ccp, enum arm_reg_type type,
1725 enum arm_reg_type *rtype, struct neon_type_el *vectype)
1727 struct neon_typed_alias atype;
1729 int reg = parse_typed_reg_or_scalar (&str, type, rtype, &atype);
1734 /* Do not allow regname(... to parse as a register. */
1738 /* Do not allow a scalar (reg+index) to parse as a register. */
1739 if ((atype.defined & NTA_HASINDEX) != 0)
1741 first_error (_("register operand expected, but got scalar"));
1746 *vectype = atype.eltype;
1753 #define NEON_SCALAR_REG(X) ((X) >> 4)
1754 #define NEON_SCALAR_INDEX(X) ((X) & 15)
1756 /* Parse a Neon scalar. Most of the time when we're parsing a scalar, we don't
1757 have enough information to be able to do a good job bounds-checking. So, we
1758 just do easy checks here, and do further checks later. */
1761 parse_scalar (char **ccp, int elsize, struct neon_type_el *type, enum
1762 arm_reg_type reg_type)
1766 struct neon_typed_alias atype;
1769 reg = parse_typed_reg_or_scalar (&str, reg_type, NULL, &atype);
1787 if (reg == FAIL || (atype.defined & NTA_HASINDEX) == 0)
1790 if (reg_type != REG_TYPE_MQ && atype.index == NEON_ALL_LANES)
1792 first_error (_("scalar must have an index"));
1795 else if (atype.index >= reg_size / elsize)
1797 first_error (_("scalar index out of range"));
1802 *type = atype.eltype;
1806 return reg * 16 + atype.index;
1809 /* Types of registers in a list. */
1822 /* Parse an ARM register list. Returns the bitmask, or FAIL. */
1825 parse_reg_list (char ** strp, enum reg_list_els etype)
1831 gas_assert (etype == REGLIST_RN || etype == REGLIST_CLRM);
1833 /* We come back here if we get ranges concatenated by '+' or '|'. */
1836 skip_whitespace (str);
1849 const char apsr_str[] = "apsr";
1850 int apsr_str_len = strlen (apsr_str);
1852 reg = arm_reg_parse (&str, REGLIST_RN);
1853 if (etype == REGLIST_CLRM)
1855 if (reg == REG_SP || reg == REG_PC)
1857 else if (reg == FAIL
1858 && !strncasecmp (str, apsr_str, apsr_str_len)
1859 && !ISALPHA (*(str + apsr_str_len)))
1862 str += apsr_str_len;
1867 first_error (_("r0-r12, lr or APSR expected"));
1871 else /* etype == REGLIST_RN. */
1875 first_error (_(reg_expected_msgs[REGLIST_RN]));
1886 first_error (_("bad range in register list"));
1890 for (i = cur_reg + 1; i < reg; i++)
1892 if (range & (1 << i))
1894 (_("Warning: duplicated register (r%d) in register list"),
1902 if (range & (1 << reg))
1903 as_tsktsk (_("Warning: duplicated register (r%d) in register list"),
1905 else if (reg <= cur_reg)
1906 as_tsktsk (_("Warning: register range not in ascending order"));
1911 while (skip_past_comma (&str) != FAIL
1912 || (in_range = 1, *str++ == '-'));
1915 if (skip_past_char (&str, '}') == FAIL)
1917 first_error (_("missing `}'"));
1921 else if (etype == REGLIST_RN)
1925 if (my_get_expression (&exp, &str, GE_NO_PREFIX))
1928 if (exp.X_op == O_constant)
1930 if (exp.X_add_number
1931 != (exp.X_add_number & 0x0000ffff))
1933 inst.error = _("invalid register mask");
1937 if ((range & exp.X_add_number) != 0)
1939 int regno = range & exp.X_add_number;
1942 regno = (1 << regno) - 1;
1944 (_("Warning: duplicated register (r%d) in register list"),
1948 range |= exp.X_add_number;
1952 if (inst.relocs[0].type != 0)
1954 inst.error = _("expression too complex");
1958 memcpy (&inst.relocs[0].exp, &exp, sizeof (expressionS));
1959 inst.relocs[0].type = BFD_RELOC_ARM_MULTI;
1960 inst.relocs[0].pc_rel = 0;
1964 if (*str == '|' || *str == '+')
1970 while (another_range);
1976 /* Parse a VFP register list. If the string is invalid return FAIL.
1977 Otherwise return the number of registers, and set PBASE to the first
1978 register. Parses registers of type ETYPE.
1979 If REGLIST_NEON_D is used, several syntax enhancements are enabled:
1980 - Q registers can be used to specify pairs of D registers
1981 - { } can be omitted from around a singleton register list
1982 FIXME: This is not implemented, as it would require backtracking in
1985 This could be done (the meaning isn't really ambiguous), but doesn't
1986 fit in well with the current parsing framework.
1987 - 32 D registers may be used (also true for VFPv3).
1988 FIXME: Types are ignored in these register lists, which is probably a
1992 parse_vfp_reg_list (char **ccp, unsigned int *pbase, enum reg_list_els etype,
1993 bfd_boolean *partial_match)
1998 enum arm_reg_type regtype = (enum arm_reg_type) 0;
2002 unsigned long mask = 0;
2004 bfd_boolean vpr_seen = FALSE;
2005 bfd_boolean expect_vpr =
2006 (etype == REGLIST_VFP_S_VPR) || (etype == REGLIST_VFP_D_VPR);
2008 if (skip_past_char (&str, '{') == FAIL)
2010 inst.error = _("expecting {");
2017 case REGLIST_VFP_S_VPR:
2018 regtype = REG_TYPE_VFS;
2023 case REGLIST_VFP_D_VPR:
2024 regtype = REG_TYPE_VFD;
2027 case REGLIST_NEON_D:
2028 regtype = REG_TYPE_NDQ;
2035 if (etype != REGLIST_VFP_S && etype != REGLIST_VFP_S_VPR)
2037 /* VFPv3 allows 32 D registers, except for the VFPv3-D16 variant. */
2038 if (ARM_CPU_HAS_FEATURE (cpu_variant, fpu_vfp_ext_d32))
2042 ARM_MERGE_FEATURE_SETS (thumb_arch_used, thumb_arch_used,
2045 ARM_MERGE_FEATURE_SETS (arm_arch_used, arm_arch_used,
2052 base_reg = max_regs;
2053 *partial_match = FALSE;
2057 int setmask = 1, addregs = 1;
2058 const char vpr_str[] = "vpr";
2059 int vpr_str_len = strlen (vpr_str);
2061 new_base = arm_typed_reg_parse (&str, regtype, ®type, NULL);
2065 if (new_base == FAIL
2066 && !strncasecmp (str, vpr_str, vpr_str_len)
2067 && !ISALPHA (*(str + vpr_str_len))
2073 base_reg = 0; /* Canonicalize VPR only on d0 with 0 regs. */
2077 first_error (_("VPR expected last"));
2080 else if (new_base == FAIL)
2082 if (regtype == REG_TYPE_VFS)
2083 first_error (_("VFP single precision register or VPR "
2085 else /* regtype == REG_TYPE_VFD. */
2086 first_error (_("VFP/Neon double precision register or VPR "
2091 else if (new_base == FAIL)
2093 first_error (_(reg_expected_msgs[regtype]));
2097 *partial_match = TRUE;
2101 if (new_base >= max_regs)
2103 first_error (_("register out of range in list"));
2107 /* Note: a value of 2 * n is returned for the register Q<n>. */
2108 if (regtype == REG_TYPE_NQ)
2114 if (new_base < base_reg)
2115 base_reg = new_base;
2117 if (mask & (setmask << new_base))
2119 first_error (_("invalid register list"));
2123 if ((mask >> new_base) != 0 && ! warned && !vpr_seen)
2125 as_tsktsk (_("register list not in ascending order"));
2129 mask |= setmask << new_base;
2132 if (*str == '-') /* We have the start of a range expression */
2138 if ((high_range = arm_typed_reg_parse (&str, regtype, NULL, NULL))
2141 inst.error = gettext (reg_expected_msgs[regtype]);
2145 if (high_range >= max_regs)
2147 first_error (_("register out of range in list"));
2151 if (regtype == REG_TYPE_NQ)
2152 high_range = high_range + 1;
2154 if (high_range <= new_base)
2156 inst.error = _("register range not in ascending order");
2160 for (new_base += addregs; new_base <= high_range; new_base += addregs)
2162 if (mask & (setmask << new_base))
2164 inst.error = _("invalid register list");
2168 mask |= setmask << new_base;
2173 while (skip_past_comma (&str) != FAIL);
2177 /* Sanity check -- should have raised a parse error above. */
2178 if ((!vpr_seen && count == 0) || count > max_regs)
2183 if (expect_vpr && !vpr_seen)
2185 first_error (_("VPR expected last"));
2189 /* Final test -- the registers must be consecutive. */
2191 for (i = 0; i < count; i++)
2193 if ((mask & (1u << i)) == 0)
2195 inst.error = _("non-contiguous register range");
2205 /* True if two alias types are the same. */
2208 neon_alias_types_same (struct neon_typed_alias *a, struct neon_typed_alias *b)
2216 if (a->defined != b->defined)
2219 if ((a->defined & NTA_HASTYPE) != 0
2220 && (a->eltype.type != b->eltype.type
2221 || a->eltype.size != b->eltype.size))
2224 if ((a->defined & NTA_HASINDEX) != 0
2225 && (a->index != b->index))
2231 /* Parse element/structure lists for Neon VLD<n> and VST<n> instructions.
2232 The base register is put in *PBASE.
2233 The lane (or one of the NEON_*_LANES constants) is placed in bits [3:0] of
2235 The register stride (minus one) is put in bit 4 of the return value.
2236 Bits [6:5] encode the list length (minus one).
2237 The type of the list elements is put in *ELTYPE, if non-NULL. */
2239 #define NEON_LANE(X) ((X) & 0xf)
2240 #define NEON_REG_STRIDE(X) ((((X) >> 4) & 1) + 1)
2241 #define NEON_REGLIST_LENGTH(X) ((((X) >> 5) & 3) + 1)
2244 parse_neon_el_struct_list (char **str, unsigned *pbase,
2246 struct neon_type_el *eltype)
2253 int leading_brace = 0;
2254 enum arm_reg_type rtype = REG_TYPE_NDQ;
2255 const char *const incr_error = mve ? _("register stride must be 1") :
2256 _("register stride must be 1 or 2");
2257 const char *const type_error = _("mismatched element/structure types in list");
2258 struct neon_typed_alias firsttype;
2259 firsttype.defined = 0;
2260 firsttype.eltype.type = NT_invtype;
2261 firsttype.eltype.size = -1;
2262 firsttype.index = -1;
2264 if (skip_past_char (&ptr, '{') == SUCCESS)
2269 struct neon_typed_alias atype;
2271 rtype = REG_TYPE_MQ;
2272 int getreg = parse_typed_reg_or_scalar (&ptr, rtype, &rtype, &atype);
2276 first_error (_(reg_expected_msgs[rtype]));
2283 if (rtype == REG_TYPE_NQ)
2289 else if (reg_incr == -1)
2291 reg_incr = getreg - base_reg;
2292 if (reg_incr < 1 || reg_incr > 2)
2294 first_error (_(incr_error));
2298 else if (getreg != base_reg + reg_incr * count)
2300 first_error (_(incr_error));
2304 if (! neon_alias_types_same (&atype, &firsttype))
2306 first_error (_(type_error));
2310 /* Handle Dn-Dm or Qn-Qm syntax. Can only be used with non-indexed list
2314 struct neon_typed_alias htype;
2315 int hireg, dregs = (rtype == REG_TYPE_NQ) ? 2 : 1;
2317 lane = NEON_INTERLEAVE_LANES;
2318 else if (lane != NEON_INTERLEAVE_LANES)
2320 first_error (_(type_error));
2325 else if (reg_incr != 1)
2327 first_error (_("don't use Rn-Rm syntax with non-unit stride"));
2331 hireg = parse_typed_reg_or_scalar (&ptr, rtype, NULL, &htype);
2334 first_error (_(reg_expected_msgs[rtype]));
2337 if (! neon_alias_types_same (&htype, &firsttype))
2339 first_error (_(type_error));
2342 count += hireg + dregs - getreg;
2346 /* If we're using Q registers, we can't use [] or [n] syntax. */
2347 if (rtype == REG_TYPE_NQ)
2353 if ((atype.defined & NTA_HASINDEX) != 0)
2357 else if (lane != atype.index)
2359 first_error (_(type_error));
2363 else if (lane == -1)
2364 lane = NEON_INTERLEAVE_LANES;
2365 else if (lane != NEON_INTERLEAVE_LANES)
2367 first_error (_(type_error));
2372 while ((count != 1 || leading_brace) && skip_past_comma (&ptr) != FAIL);
2374 /* No lane set by [x]. We must be interleaving structures. */
2376 lane = NEON_INTERLEAVE_LANES;
2379 if (lane == -1 || base_reg == -1 || count < 1 || (!mve && count > 4)
2380 || (count > 1 && reg_incr == -1))
2382 first_error (_("error parsing element/structure list"));
2386 if ((count > 1 || leading_brace) && skip_past_char (&ptr, '}') == FAIL)
2388 first_error (_("expected }"));
2396 *eltype = firsttype.eltype;
2401 return lane | ((reg_incr - 1) << 4) | ((count - 1) << 5);
2404 /* Parse an explicit relocation suffix on an expression. This is
2405 either nothing, or a word in parentheses. Note that if !OBJ_ELF,
2406 arm_reloc_hsh contains no entries, so this function can only
2407 succeed if there is no () after the word. Returns -1 on error,
2408 BFD_RELOC_UNUSED if there wasn't any suffix. */
2411 parse_reloc (char **str)
2413 struct reloc_entry *r;
2417 return BFD_RELOC_UNUSED;
2422 while (*q && *q != ')' && *q != ',')
2427 if ((r = (struct reloc_entry *)
2428 hash_find_n (arm_reloc_hsh, p, q - p)) == NULL)
2435 /* Directives: register aliases. */
2437 static struct reg_entry *
2438 insert_reg_alias (char *str, unsigned number, int type)
2440 struct reg_entry *new_reg;
2443 if ((new_reg = (struct reg_entry *) hash_find (arm_reg_hsh, str)) != 0)
2445 if (new_reg->builtin)
2446 as_warn (_("ignoring attempt to redefine built-in register '%s'"), str);
2448 /* Only warn about a redefinition if it's not defined as the
2450 else if (new_reg->number != number || new_reg->type != type)
2451 as_warn (_("ignoring redefinition of register alias '%s'"), str);
2456 name = xstrdup (str);
2457 new_reg = XNEW (struct reg_entry);
2459 new_reg->name = name;
2460 new_reg->number = number;
2461 new_reg->type = type;
2462 new_reg->builtin = FALSE;
2463 new_reg->neon = NULL;
2465 if (hash_insert (arm_reg_hsh, name, (void *) new_reg))
2472 insert_neon_reg_alias (char *str, int number, int type,
2473 struct neon_typed_alias *atype)
2475 struct reg_entry *reg = insert_reg_alias (str, number, type);
2479 first_error (_("attempt to redefine typed alias"));
2485 reg->neon = XNEW (struct neon_typed_alias);
2486 *reg->neon = *atype;
2490 /* Look for the .req directive. This is of the form:
2492 new_register_name .req existing_register_name
2494 If we find one, or if it looks sufficiently like one that we want to
2495 handle any error here, return TRUE. Otherwise return FALSE. */
2498 create_register_alias (char * newname, char *p)
2500 struct reg_entry *old;
2501 char *oldname, *nbuf;
2504 /* The input scrubber ensures that whitespace after the mnemonic is
2505 collapsed to single spaces. */
2507 if (strncmp (oldname, " .req ", 6) != 0)
2511 if (*oldname == '\0')
2514 old = (struct reg_entry *) hash_find (arm_reg_hsh, oldname);
2517 as_warn (_("unknown register '%s' -- .req ignored"), oldname);
2521 /* If TC_CASE_SENSITIVE is defined, then newname already points to
2522 the desired alias name, and p points to its end. If not, then
2523 the desired alias name is in the global original_case_string. */
2524 #ifdef TC_CASE_SENSITIVE
2527 newname = original_case_string;
2528 nlen = strlen (newname);
2531 nbuf = xmemdup0 (newname, nlen);
2533 /* Create aliases under the new name as stated; an all-lowercase
2534 version of the new name; and an all-uppercase version of the new
2536 if (insert_reg_alias (nbuf, old->number, old->type) != NULL)
2538 for (p = nbuf; *p; p++)
2541 if (strncmp (nbuf, newname, nlen))
2543 /* If this attempt to create an additional alias fails, do not bother
2544 trying to create the all-lower case alias. We will fail and issue
2545 a second, duplicate error message. This situation arises when the
2546 programmer does something like:
2549 The second .req creates the "Foo" alias but then fails to create
2550 the artificial FOO alias because it has already been created by the
2552 if (insert_reg_alias (nbuf, old->number, old->type) == NULL)
2559 for (p = nbuf; *p; p++)
2562 if (strncmp (nbuf, newname, nlen))
2563 insert_reg_alias (nbuf, old->number, old->type);
2570 /* Create a Neon typed/indexed register alias using directives, e.g.:
2575 These typed registers can be used instead of the types specified after the
2576 Neon mnemonic, so long as all operands given have types. Types can also be
2577 specified directly, e.g.:
2578 vadd d0.s32, d1.s32, d2.s32 */
2581 create_neon_reg_alias (char *newname, char *p)
2583 enum arm_reg_type basetype;
2584 struct reg_entry *basereg;
2585 struct reg_entry mybasereg;
2586 struct neon_type ntype;
2587 struct neon_typed_alias typeinfo;
2588 char *namebuf, *nameend ATTRIBUTE_UNUSED;
2591 typeinfo.defined = 0;
2592 typeinfo.eltype.type = NT_invtype;
2593 typeinfo.eltype.size = -1;
2594 typeinfo.index = -1;
2598 if (strncmp (p, " .dn ", 5) == 0)
2599 basetype = REG_TYPE_VFD;
2600 else if (strncmp (p, " .qn ", 5) == 0)
2601 basetype = REG_TYPE_NQ;
2610 basereg = arm_reg_parse_multi (&p);
2612 if (basereg && basereg->type != basetype)
2614 as_bad (_("bad type for register"));
2618 if (basereg == NULL)
2621 /* Try parsing as an integer. */
2622 my_get_expression (&exp, &p, GE_NO_PREFIX);
2623 if (exp.X_op != O_constant)
2625 as_bad (_("expression must be constant"));
2628 basereg = &mybasereg;
2629 basereg->number = (basetype == REG_TYPE_NQ) ? exp.X_add_number * 2
2635 typeinfo = *basereg->neon;
2637 if (parse_neon_type (&ntype, &p) == SUCCESS)
2639 /* We got a type. */
2640 if (typeinfo.defined & NTA_HASTYPE)
2642 as_bad (_("can't redefine the type of a register alias"));
2646 typeinfo.defined |= NTA_HASTYPE;
2647 if (ntype.elems != 1)
2649 as_bad (_("you must specify a single type only"));
2652 typeinfo.eltype = ntype.el[0];
2655 if (skip_past_char (&p, '[') == SUCCESS)
2658 /* We got a scalar index. */
2660 if (typeinfo.defined & NTA_HASINDEX)
2662 as_bad (_("can't redefine the index of a scalar alias"));
2666 my_get_expression (&exp, &p, GE_NO_PREFIX);
2668 if (exp.X_op != O_constant)
2670 as_bad (_("scalar index must be constant"));
2674 typeinfo.defined |= NTA_HASINDEX;
2675 typeinfo.index = exp.X_add_number;
2677 if (skip_past_char (&p, ']') == FAIL)
2679 as_bad (_("expecting ]"));
2684 /* If TC_CASE_SENSITIVE is defined, then newname already points to
2685 the desired alias name, and p points to its end. If not, then
2686 the desired alias name is in the global original_case_string. */
2687 #ifdef TC_CASE_SENSITIVE
2688 namelen = nameend - newname;
2690 newname = original_case_string;
2691 namelen = strlen (newname);
2694 namebuf = xmemdup0 (newname, namelen);
2696 insert_neon_reg_alias (namebuf, basereg->number, basetype,
2697 typeinfo.defined != 0 ? &typeinfo : NULL);
2699 /* Insert name in all uppercase. */
2700 for (p = namebuf; *p; p++)
2703 if (strncmp (namebuf, newname, namelen))
2704 insert_neon_reg_alias (namebuf, basereg->number, basetype,
2705 typeinfo.defined != 0 ? &typeinfo : NULL);
2707 /* Insert name in all lowercase. */
2708 for (p = namebuf; *p; p++)
2711 if (strncmp (namebuf, newname, namelen))
2712 insert_neon_reg_alias (namebuf, basereg->number, basetype,
2713 typeinfo.defined != 0 ? &typeinfo : NULL);
2719 /* Should never be called, as .req goes between the alias and the
2720 register name, not at the beginning of the line. */
2723 s_req (int a ATTRIBUTE_UNUSED)
2725 as_bad (_("invalid syntax for .req directive"));
2729 s_dn (int a ATTRIBUTE_UNUSED)
2731 as_bad (_("invalid syntax for .dn directive"));
2735 s_qn (int a ATTRIBUTE_UNUSED)
2737 as_bad (_("invalid syntax for .qn directive"));
2740 /* The .unreq directive deletes an alias which was previously defined
2741 by .req. For example:
2747 s_unreq (int a ATTRIBUTE_UNUSED)
2752 name = input_line_pointer;
2754 while (*input_line_pointer != 0
2755 && *input_line_pointer != ' '
2756 && *input_line_pointer != '\n')
2757 ++input_line_pointer;
2759 saved_char = *input_line_pointer;
2760 *input_line_pointer = 0;
2763 as_bad (_("invalid syntax for .unreq directive"));
2766 struct reg_entry *reg = (struct reg_entry *) hash_find (arm_reg_hsh,
2770 as_bad (_("unknown register alias '%s'"), name);
2771 else if (reg->builtin)
2772 as_warn (_("ignoring attempt to use .unreq on fixed register name: '%s'"),
2779 hash_delete (arm_reg_hsh, name, FALSE);
2780 free ((char *) reg->name);
2785 /* Also locate the all upper case and all lower case versions.
2786 Do not complain if we cannot find one or the other as it
2787 was probably deleted above. */
2789 nbuf = strdup (name);
2790 for (p = nbuf; *p; p++)
2792 reg = (struct reg_entry *) hash_find (arm_reg_hsh, nbuf);
2795 hash_delete (arm_reg_hsh, nbuf, FALSE);
2796 free ((char *) reg->name);
2802 for (p = nbuf; *p; p++)
2804 reg = (struct reg_entry *) hash_find (arm_reg_hsh, nbuf);
2807 hash_delete (arm_reg_hsh, nbuf, FALSE);
2808 free ((char *) reg->name);
2818 *input_line_pointer = saved_char;
2819 demand_empty_rest_of_line ();
2822 /* Directives: Instruction set selection. */
2825 /* This code is to handle mapping symbols as defined in the ARM ELF spec.
2826 (See "Mapping symbols", section 4.5.5, ARM AAELF version 1.0).
2827 Note that previously, $a and $t has type STT_FUNC (BSF_OBJECT flag),
2828 and $d has type STT_OBJECT (BSF_OBJECT flag). Now all three are untyped. */
2830 /* Create a new mapping symbol for the transition to STATE. */
2833 make_mapping_symbol (enum mstate state, valueT value, fragS *frag)
2836 const char * symname;
2843 type = BSF_NO_FLAGS;
2847 type = BSF_NO_FLAGS;
2851 type = BSF_NO_FLAGS;
2857 symbolP = symbol_new (symname, now_seg, value, frag);
2858 symbol_get_bfdsym (symbolP)->flags |= type | BSF_LOCAL;
2863 THUMB_SET_FUNC (symbolP, 0);
2864 ARM_SET_THUMB (symbolP, 0);
2865 ARM_SET_INTERWORK (symbolP, support_interwork);
2869 THUMB_SET_FUNC (symbolP, 1);
2870 ARM_SET_THUMB (symbolP, 1);
2871 ARM_SET_INTERWORK (symbolP, support_interwork);
2879 /* Save the mapping symbols for future reference. Also check that
2880 we do not place two mapping symbols at the same offset within a
2881 frag. We'll handle overlap between frags in
2882 check_mapping_symbols.
2884 If .fill or other data filling directive generates zero sized data,
2885 the mapping symbol for the following code will have the same value
2886 as the one generated for the data filling directive. In this case,
2887 we replace the old symbol with the new one at the same address. */
2890 if (frag->tc_frag_data.first_map != NULL)
2892 know (S_GET_VALUE (frag->tc_frag_data.first_map) == 0);
2893 symbol_remove (frag->tc_frag_data.first_map, &symbol_rootP, &symbol_lastP);
2895 frag->tc_frag_data.first_map = symbolP;
2897 if (frag->tc_frag_data.last_map != NULL)
2899 know (S_GET_VALUE (frag->tc_frag_data.last_map) <= S_GET_VALUE (symbolP));
2900 if (S_GET_VALUE (frag->tc_frag_data.last_map) == S_GET_VALUE (symbolP))
2901 symbol_remove (frag->tc_frag_data.last_map, &symbol_rootP, &symbol_lastP);
2903 frag->tc_frag_data.last_map = symbolP;
2906 /* We must sometimes convert a region marked as code to data during
2907 code alignment, if an odd number of bytes have to be padded. The
2908 code mapping symbol is pushed to an aligned address. */
2911 insert_data_mapping_symbol (enum mstate state,
2912 valueT value, fragS *frag, offsetT bytes)
2914 /* If there was already a mapping symbol, remove it. */
2915 if (frag->tc_frag_data.last_map != NULL
2916 && S_GET_VALUE (frag->tc_frag_data.last_map) == frag->fr_address + value)
2918 symbolS *symp = frag->tc_frag_data.last_map;
2922 know (frag->tc_frag_data.first_map == symp);
2923 frag->tc_frag_data.first_map = NULL;
2925 frag->tc_frag_data.last_map = NULL;
2926 symbol_remove (symp, &symbol_rootP, &symbol_lastP);
2929 make_mapping_symbol (MAP_DATA, value, frag);
2930 make_mapping_symbol (state, value + bytes, frag);
2933 static void mapping_state_2 (enum mstate state, int max_chars);
2935 /* Set the mapping state to STATE. Only call this when about to
2936 emit some STATE bytes to the file. */
2938 #define TRANSITION(from, to) (mapstate == (from) && state == (to))
2940 mapping_state (enum mstate state)
2942 enum mstate mapstate = seg_info (now_seg)->tc_segment_info_data.mapstate;
2944 if (mapstate == state)
2945 /* The mapping symbol has already been emitted.
2946 There is nothing else to do. */
2949 if (state == MAP_ARM || state == MAP_THUMB)
2951 All ARM instructions require 4-byte alignment.
2952 (Almost) all Thumb instructions require 2-byte alignment.
2954 When emitting instructions into any section, mark the section
2957 Some Thumb instructions are alignment-sensitive modulo 4 bytes,
2958 but themselves require 2-byte alignment; this applies to some
2959 PC- relative forms. However, these cases will involve implicit
2960 literal pool generation or an explicit .align >=2, both of
2961 which will cause the section to me marked with sufficient
2962 alignment. Thus, we don't handle those cases here. */
2963 record_alignment (now_seg, state == MAP_ARM ? 2 : 1);
2965 if (TRANSITION (MAP_UNDEFINED, MAP_DATA))
2966 /* This case will be evaluated later. */
2969 mapping_state_2 (state, 0);
2972 /* Same as mapping_state, but MAX_CHARS bytes have already been
2973 allocated. Put the mapping symbol that far back. */
2976 mapping_state_2 (enum mstate state, int max_chars)
2978 enum mstate mapstate = seg_info (now_seg)->tc_segment_info_data.mapstate;
2980 if (!SEG_NORMAL (now_seg))
2983 if (mapstate == state)
2984 /* The mapping symbol has already been emitted.
2985 There is nothing else to do. */
2988 if (TRANSITION (MAP_UNDEFINED, MAP_ARM)
2989 || TRANSITION (MAP_UNDEFINED, MAP_THUMB))
2991 struct frag * const frag_first = seg_info (now_seg)->frchainP->frch_root;
2992 const int add_symbol = (frag_now != frag_first) || (frag_now_fix () > 0);
2995 make_mapping_symbol (MAP_DATA, (valueT) 0, frag_first);
2998 seg_info (now_seg)->tc_segment_info_data.mapstate = state;
2999 make_mapping_symbol (state, (valueT) frag_now_fix () - max_chars, frag_now);
3003 #define mapping_state(x) ((void)0)
3004 #define mapping_state_2(x, y) ((void)0)
3007 /* Find the real, Thumb encoded start of a Thumb function. */
3011 find_real_start (symbolS * symbolP)
3014 const char * name = S_GET_NAME (symbolP);
3015 symbolS * new_target;
3017 /* This definition must agree with the one in gcc/config/arm/thumb.c. */
3018 #define STUB_NAME ".real_start_of"
3023 /* The compiler may generate BL instructions to local labels because
3024 it needs to perform a branch to a far away location. These labels
3025 do not have a corresponding ".real_start_of" label. We check
3026 both for S_IS_LOCAL and for a leading dot, to give a way to bypass
3027 the ".real_start_of" convention for nonlocal branches. */
3028 if (S_IS_LOCAL (symbolP) || name[0] == '.')
3031 real_start = concat (STUB_NAME, name, NULL);
3032 new_target = symbol_find (real_start);
3035 if (new_target == NULL)
3037 as_warn (_("Failed to find real start of function: %s\n"), name);
3038 new_target = symbolP;
3046 opcode_select (int width)
3053 if (!ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v4t))
3054 as_bad (_("selected processor does not support THUMB opcodes"));
3057 /* No need to force the alignment, since we will have been
3058 coming from ARM mode, which is word-aligned. */
3059 record_alignment (now_seg, 1);
3066 if (!ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v1))
3067 as_bad (_("selected processor does not support ARM opcodes"));
3072 frag_align (2, 0, 0);
3074 record_alignment (now_seg, 1);
3079 as_bad (_("invalid instruction size selected (%d)"), width);
3084 s_arm (int ignore ATTRIBUTE_UNUSED)
3087 demand_empty_rest_of_line ();
3091 s_thumb (int ignore ATTRIBUTE_UNUSED)
3094 demand_empty_rest_of_line ();
3098 s_code (int unused ATTRIBUTE_UNUSED)
3102 temp = get_absolute_expression ();
3107 opcode_select (temp);
3111 as_bad (_("invalid operand to .code directive (%d) (expecting 16 or 32)"), temp);
3116 s_force_thumb (int ignore ATTRIBUTE_UNUSED)
3118 /* If we are not already in thumb mode go into it, EVEN if
3119 the target processor does not support thumb instructions.
3120 This is used by gcc/config/arm/lib1funcs.asm for example
3121 to compile interworking support functions even if the
3122 target processor should not support interworking. */
3126 record_alignment (now_seg, 1);
3129 demand_empty_rest_of_line ();
3133 s_thumb_func (int ignore ATTRIBUTE_UNUSED)
3137 /* The following label is the name/address of the start of a Thumb function.
3138 We need to know this for the interworking support. */
3139 label_is_thumb_function_name = TRUE;
3142 /* Perform a .set directive, but also mark the alias as
3143 being a thumb function. */
3146 s_thumb_set (int equiv)
3148 /* XXX the following is a duplicate of the code for s_set() in read.c
3149 We cannot just call that code as we need to get at the symbol that
3156 /* Especial apologies for the random logic:
3157 This just grew, and could be parsed much more simply!
3159 delim = get_symbol_name (& name);
3160 end_name = input_line_pointer;
3161 (void) restore_line_pointer (delim);
3163 if (*input_line_pointer != ',')
3166 as_bad (_("expected comma after name \"%s\""), name);
3168 ignore_rest_of_line ();
3172 input_line_pointer++;
3175 if (name[0] == '.' && name[1] == '\0')
3177 /* XXX - this should not happen to .thumb_set. */
3181 if ((symbolP = symbol_find (name)) == NULL
3182 && (symbolP = md_undefined_symbol (name)) == NULL)
3185 /* When doing symbol listings, play games with dummy fragments living
3186 outside the normal fragment chain to record the file and line info
3188 if (listing & LISTING_SYMBOLS)
3190 extern struct list_info_struct * listing_tail;
3191 fragS * dummy_frag = (fragS * ) xmalloc (sizeof (fragS));
3193 memset (dummy_frag, 0, sizeof (fragS));
3194 dummy_frag->fr_type = rs_fill;
3195 dummy_frag->line = listing_tail;
3196 symbolP = symbol_new (name, undefined_section, 0, dummy_frag);
3197 dummy_frag->fr_symbol = symbolP;
3201 symbolP = symbol_new (name, undefined_section, 0, &zero_address_frag);
3204 /* "set" symbols are local unless otherwise specified. */
3205 SF_SET_LOCAL (symbolP);
3206 #endif /* OBJ_COFF */
3207 } /* Make a new symbol. */
3209 symbol_table_insert (symbolP);
3214 && S_IS_DEFINED (symbolP)
3215 && S_GET_SEGMENT (symbolP) != reg_section)
3216 as_bad (_("symbol `%s' already defined"), S_GET_NAME (symbolP));
3218 pseudo_set (symbolP);
3220 demand_empty_rest_of_line ();
3222 /* XXX Now we come to the Thumb specific bit of code. */
3224 THUMB_SET_FUNC (symbolP, 1);
3225 ARM_SET_THUMB (symbolP, 1);
3226 #if defined OBJ_ELF || defined OBJ_COFF
3227 ARM_SET_INTERWORK (symbolP, support_interwork);
3231 /* Directives: Mode selection. */
3233 /* .syntax [unified|divided] - choose the new unified syntax
3234 (same for Arm and Thumb encoding, modulo slight differences in what
3235 can be represented) or the old divergent syntax for each mode. */
3237 s_syntax (int unused ATTRIBUTE_UNUSED)
3241 delim = get_symbol_name (& name);
3243 if (!strcasecmp (name, "unified"))
3244 unified_syntax = TRUE;
3245 else if (!strcasecmp (name, "divided"))
3246 unified_syntax = FALSE;
3249 as_bad (_("unrecognized syntax mode \"%s\""), name);
3252 (void) restore_line_pointer (delim);
3253 demand_empty_rest_of_line ();
3256 /* Directives: sectioning and alignment. */
3259 s_bss (int ignore ATTRIBUTE_UNUSED)
3261 /* We don't support putting frags in the BSS segment, we fake it by
3262 marking in_bss, then looking at s_skip for clues. */
3263 subseg_set (bss_section, 0);
3264 demand_empty_rest_of_line ();
3266 #ifdef md_elf_section_change_hook
3267 md_elf_section_change_hook ();
3272 s_even (int ignore ATTRIBUTE_UNUSED)
3274 /* Never make frag if expect extra pass. */
3276 frag_align (1, 0, 0);
3278 record_alignment (now_seg, 1);
3280 demand_empty_rest_of_line ();
3283 /* Directives: CodeComposer Studio. */
3285 /* .ref (for CodeComposer Studio syntax only). */
3287 s_ccs_ref (int unused ATTRIBUTE_UNUSED)
3289 if (codecomposer_syntax)
3290 ignore_rest_of_line ();
3292 as_bad (_(".ref pseudo-op only available with -mccs flag."));
3295 /* If name is not NULL, then it is used for marking the beginning of a
3296 function, whereas if it is NULL then it means the function end. */
3298 asmfunc_debug (const char * name)
3300 static const char * last_name = NULL;
3304 gas_assert (last_name == NULL);
3307 if (debug_type == DEBUG_STABS)
3308 stabs_generate_asm_func (name, name);
3312 gas_assert (last_name != NULL);
3314 if (debug_type == DEBUG_STABS)
3315 stabs_generate_asm_endfunc (last_name, last_name);
3322 s_ccs_asmfunc (int unused ATTRIBUTE_UNUSED)
3324 if (codecomposer_syntax)
3326 switch (asmfunc_state)
3328 case OUTSIDE_ASMFUNC:
3329 asmfunc_state = WAITING_ASMFUNC_NAME;
3332 case WAITING_ASMFUNC_NAME:
3333 as_bad (_(".asmfunc repeated."));
3336 case WAITING_ENDASMFUNC:
3337 as_bad (_(".asmfunc without function."));
3340 demand_empty_rest_of_line ();
3343 as_bad (_(".asmfunc pseudo-op only available with -mccs flag."));
3347 s_ccs_endasmfunc (int unused ATTRIBUTE_UNUSED)
3349 if (codecomposer_syntax)
3351 switch (asmfunc_state)
3353 case OUTSIDE_ASMFUNC:
3354 as_bad (_(".endasmfunc without a .asmfunc."));
3357 case WAITING_ASMFUNC_NAME:
3358 as_bad (_(".endasmfunc without function."));
3361 case WAITING_ENDASMFUNC:
3362 asmfunc_state = OUTSIDE_ASMFUNC;
3363 asmfunc_debug (NULL);
3366 demand_empty_rest_of_line ();
3369 as_bad (_(".endasmfunc pseudo-op only available with -mccs flag."));
3373 s_ccs_def (int name)
3375 if (codecomposer_syntax)
3378 as_bad (_(".def pseudo-op only available with -mccs flag."));
3381 /* Directives: Literal pools. */
3383 static literal_pool *
3384 find_literal_pool (void)
3386 literal_pool * pool;
3388 for (pool = list_of_pools; pool != NULL; pool = pool->next)
3390 if (pool->section == now_seg
3391 && pool->sub_section == now_subseg)
3398 static literal_pool *
3399 find_or_make_literal_pool (void)
3401 /* Next literal pool ID number. */
3402 static unsigned int latest_pool_num = 1;
3403 literal_pool * pool;
3405 pool = find_literal_pool ();
3409 /* Create a new pool. */
3410 pool = XNEW (literal_pool);
3414 pool->next_free_entry = 0;
3415 pool->section = now_seg;
3416 pool->sub_section = now_subseg;
3417 pool->next = list_of_pools;
3418 pool->symbol = NULL;
3419 pool->alignment = 2;
3421 /* Add it to the list. */
3422 list_of_pools = pool;
3425 /* New pools, and emptied pools, will have a NULL symbol. */
3426 if (pool->symbol == NULL)
3428 pool->symbol = symbol_create (FAKE_LABEL_NAME, undefined_section,
3429 (valueT) 0, &zero_address_frag);
3430 pool->id = latest_pool_num ++;
3437 /* Add the literal in the global 'inst'
3438 structure to the relevant literal pool. */
3441 add_to_lit_pool (unsigned int nbytes)
3443 #define PADDING_SLOT 0x1
3444 #define LIT_ENTRY_SIZE_MASK 0xFF
3445 literal_pool * pool;
3446 unsigned int entry, pool_size = 0;
3447 bfd_boolean padding_slot_p = FALSE;
3453 imm1 = inst.operands[1].imm;
3454 imm2 = (inst.operands[1].regisimm ? inst.operands[1].reg
3455 : inst.relocs[0].exp.X_unsigned ? 0
3456 : ((bfd_int64_t) inst.operands[1].imm) >> 32);
3457 if (target_big_endian)
3460 imm2 = inst.operands[1].imm;
3464 pool = find_or_make_literal_pool ();
3466 /* Check if this literal value is already in the pool. */
3467 for (entry = 0; entry < pool->next_free_entry; entry ++)
3471 if ((pool->literals[entry].X_op == inst.relocs[0].exp.X_op)
3472 && (inst.relocs[0].exp.X_op == O_constant)
3473 && (pool->literals[entry].X_add_number
3474 == inst.relocs[0].exp.X_add_number)
3475 && (pool->literals[entry].X_md == nbytes)
3476 && (pool->literals[entry].X_unsigned
3477 == inst.relocs[0].exp.X_unsigned))
3480 if ((pool->literals[entry].X_op == inst.relocs[0].exp.X_op)
3481 && (inst.relocs[0].exp.X_op == O_symbol)
3482 && (pool->literals[entry].X_add_number
3483 == inst.relocs[0].exp.X_add_number)
3484 && (pool->literals[entry].X_add_symbol
3485 == inst.relocs[0].exp.X_add_symbol)
3486 && (pool->literals[entry].X_op_symbol
3487 == inst.relocs[0].exp.X_op_symbol)
3488 && (pool->literals[entry].X_md == nbytes))
3491 else if ((nbytes == 8)
3492 && !(pool_size & 0x7)
3493 && ((entry + 1) != pool->next_free_entry)
3494 && (pool->literals[entry].X_op == O_constant)
3495 && (pool->literals[entry].X_add_number == (offsetT) imm1)
3496 && (pool->literals[entry].X_unsigned
3497 == inst.relocs[0].exp.X_unsigned)
3498 && (pool->literals[entry + 1].X_op == O_constant)
3499 && (pool->literals[entry + 1].X_add_number == (offsetT) imm2)
3500 && (pool->literals[entry + 1].X_unsigned
3501 == inst.relocs[0].exp.X_unsigned))
3504 padding_slot_p = ((pool->literals[entry].X_md >> 8) == PADDING_SLOT);
3505 if (padding_slot_p && (nbytes == 4))
3511 /* Do we need to create a new entry? */
3512 if (entry == pool->next_free_entry)
3514 if (entry >= MAX_LITERAL_POOL_SIZE)
3516 inst.error = _("literal pool overflow");
3522 /* For 8-byte entries, we align to an 8-byte boundary,
3523 and split it into two 4-byte entries, because on 32-bit
3524 host, 8-byte constants are treated as big num, thus
3525 saved in "generic_bignum" which will be overwritten
3526 by later assignments.
3528 We also need to make sure there is enough space for
3531 We also check to make sure the literal operand is a
3533 if (!(inst.relocs[0].exp.X_op == O_constant
3534 || inst.relocs[0].exp.X_op == O_big))
3536 inst.error = _("invalid type for literal pool");
3539 else if (pool_size & 0x7)
3541 if ((entry + 2) >= MAX_LITERAL_POOL_SIZE)
3543 inst.error = _("literal pool overflow");
3547 pool->literals[entry] = inst.relocs[0].exp;
3548 pool->literals[entry].X_op = O_constant;
3549 pool->literals[entry].X_add_number = 0;
3550 pool->literals[entry++].X_md = (PADDING_SLOT << 8) | 4;
3551 pool->next_free_entry += 1;
3554 else if ((entry + 1) >= MAX_LITERAL_POOL_SIZE)
3556 inst.error = _("literal pool overflow");
3560 pool->literals[entry] = inst.relocs[0].exp;
3561 pool->literals[entry].X_op = O_constant;
3562 pool->literals[entry].X_add_number = imm1;
3563 pool->literals[entry].X_unsigned = inst.relocs[0].exp.X_unsigned;
3564 pool->literals[entry++].X_md = 4;
3565 pool->literals[entry] = inst.relocs[0].exp;
3566 pool->literals[entry].X_op = O_constant;
3567 pool->literals[entry].X_add_number = imm2;
3568 pool->literals[entry].X_unsigned = inst.relocs[0].exp.X_unsigned;
3569 pool->literals[entry].X_md = 4;
3570 pool->alignment = 3;
3571 pool->next_free_entry += 1;
3575 pool->literals[entry] = inst.relocs[0].exp;
3576 pool->literals[entry].X_md = 4;
3580 /* PR ld/12974: Record the location of the first source line to reference
3581 this entry in the literal pool. If it turns out during linking that the
3582 symbol does not exist we will be able to give an accurate line number for
3583 the (first use of the) missing reference. */
3584 if (debug_type == DEBUG_DWARF2)
3585 dwarf2_where (pool->locs + entry);
3587 pool->next_free_entry += 1;
3589 else if (padding_slot_p)
3591 pool->literals[entry] = inst.relocs[0].exp;
3592 pool->literals[entry].X_md = nbytes;
3595 inst.relocs[0].exp.X_op = O_symbol;
3596 inst.relocs[0].exp.X_add_number = pool_size;
3597 inst.relocs[0].exp.X_add_symbol = pool->symbol;
3603 tc_start_label_without_colon (void)
3605 bfd_boolean ret = TRUE;
3607 if (codecomposer_syntax && asmfunc_state == WAITING_ASMFUNC_NAME)
3609 const char *label = input_line_pointer;
3611 while (!is_end_of_line[(int) label[-1]])
3616 as_bad (_("Invalid label '%s'"), label);
3620 asmfunc_debug (label);
3622 asmfunc_state = WAITING_ENDASMFUNC;
3628 /* Can't use symbol_new here, so have to create a symbol and then at
3629 a later date assign it a value. That's what these functions do. */
3632 symbol_locate (symbolS * symbolP,
3633 const char * name, /* It is copied, the caller can modify. */
3634 segT segment, /* Segment identifier (SEG_<something>). */
3635 valueT valu, /* Symbol value. */
3636 fragS * frag) /* Associated fragment. */
3639 char * preserved_copy_of_name;
3641 name_length = strlen (name) + 1; /* +1 for \0. */
3642 obstack_grow (¬es, name, name_length);
3643 preserved_copy_of_name = (char *) obstack_finish (¬es);
3645 #ifdef tc_canonicalize_symbol_name
3646 preserved_copy_of_name =
3647 tc_canonicalize_symbol_name (preserved_copy_of_name);
3650 S_SET_NAME (symbolP, preserved_copy_of_name);
3652 S_SET_SEGMENT (symbolP, segment);
3653 S_SET_VALUE (symbolP, valu);
3654 symbol_clear_list_pointers (symbolP);
3656 symbol_set_frag (symbolP, frag);
3658 /* Link to end of symbol chain. */
3660 extern int symbol_table_frozen;
3662 if (symbol_table_frozen)
3666 symbol_append (symbolP, symbol_lastP, & symbol_rootP, & symbol_lastP);
3668 obj_symbol_new_hook (symbolP);
3670 #ifdef tc_symbol_new_hook
3671 tc_symbol_new_hook (symbolP);
3675 verify_symbol_chain (symbol_rootP, symbol_lastP);
3676 #endif /* DEBUG_SYMS */
3680 s_ltorg (int ignored ATTRIBUTE_UNUSED)
3683 literal_pool * pool;
3686 pool = find_literal_pool ();
3688 || pool->symbol == NULL
3689 || pool->next_free_entry == 0)
3692 /* Align pool as you have word accesses.
3693 Only make a frag if we have to. */
3695 frag_align (pool->alignment, 0, 0);
3697 record_alignment (now_seg, 2);
3700 seg_info (now_seg)->tc_segment_info_data.mapstate = MAP_DATA;
3701 make_mapping_symbol (MAP_DATA, (valueT) frag_now_fix (), frag_now);
3703 sprintf (sym_name, "$$lit_\002%x", pool->id);
3705 symbol_locate (pool->symbol, sym_name, now_seg,
3706 (valueT) frag_now_fix (), frag_now);
3707 symbol_table_insert (pool->symbol);
3709 ARM_SET_THUMB (pool->symbol, thumb_mode);
3711 #if defined OBJ_COFF || defined OBJ_ELF
3712 ARM_SET_INTERWORK (pool->symbol, support_interwork);
3715 for (entry = 0; entry < pool->next_free_entry; entry ++)
3718 if (debug_type == DEBUG_DWARF2)
3719 dwarf2_gen_line_info (frag_now_fix (), pool->locs + entry);
3721 /* First output the expression in the instruction to the pool. */
3722 emit_expr (&(pool->literals[entry]),
3723 pool->literals[entry].X_md & LIT_ENTRY_SIZE_MASK);
3726 /* Mark the pool as empty. */
3727 pool->next_free_entry = 0;
3728 pool->symbol = NULL;
3732 /* Forward declarations for functions below, in the MD interface
3734 static void fix_new_arm (fragS *, int, short, expressionS *, int, int);
3735 static valueT create_unwind_entry (int);
3736 static void start_unwind_section (const segT, int);
3737 static void add_unwind_opcode (valueT, int);
3738 static void flush_pending_unwind (void);
3740 /* Directives: Data. */
3743 s_arm_elf_cons (int nbytes)
3747 #ifdef md_flush_pending_output
3748 md_flush_pending_output ();
3751 if (is_it_end_of_statement ())
3753 demand_empty_rest_of_line ();
3757 #ifdef md_cons_align
3758 md_cons_align (nbytes);
3761 mapping_state (MAP_DATA);
3765 char *base = input_line_pointer;
3769 if (exp.X_op != O_symbol)
3770 emit_expr (&exp, (unsigned int) nbytes);
3773 char *before_reloc = input_line_pointer;
3774 reloc = parse_reloc (&input_line_pointer);
3777 as_bad (_("unrecognized relocation suffix"));
3778 ignore_rest_of_line ();
3781 else if (reloc == BFD_RELOC_UNUSED)
3782 emit_expr (&exp, (unsigned int) nbytes);
3785 reloc_howto_type *howto = (reloc_howto_type *)
3786 bfd_reloc_type_lookup (stdoutput,
3787 (bfd_reloc_code_real_type) reloc);
3788 int size = bfd_get_reloc_size (howto);
3790 if (reloc == BFD_RELOC_ARM_PLT32)
3792 as_bad (_("(plt) is only valid on branch targets"));
3793 reloc = BFD_RELOC_UNUSED;
3798 as_bad (ngettext ("%s relocations do not fit in %d byte",
3799 "%s relocations do not fit in %d bytes",
3801 howto->name, nbytes);
3804 /* We've parsed an expression stopping at O_symbol.
3805 But there may be more expression left now that we
3806 have parsed the relocation marker. Parse it again.
3807 XXX Surely there is a cleaner way to do this. */
3808 char *p = input_line_pointer;
3810 char *save_buf = XNEWVEC (char, input_line_pointer - base);
3812 memcpy (save_buf, base, input_line_pointer - base);
3813 memmove (base + (input_line_pointer - before_reloc),
3814 base, before_reloc - base);
3816 input_line_pointer = base + (input_line_pointer-before_reloc);
3818 memcpy (base, save_buf, p - base);
3820 offset = nbytes - size;
3821 p = frag_more (nbytes);
3822 memset (p, 0, nbytes);
3823 fix_new_exp (frag_now, p - frag_now->fr_literal + offset,
3824 size, &exp, 0, (enum bfd_reloc_code_real) reloc);
3830 while (*input_line_pointer++ == ',');
3832 /* Put terminator back into stream. */
3833 input_line_pointer --;
3834 demand_empty_rest_of_line ();
3837 /* Emit an expression containing a 32-bit thumb instruction.
3838 Implementation based on put_thumb32_insn. */
3841 emit_thumb32_expr (expressionS * exp)
3843 expressionS exp_high = *exp;
3845 exp_high.X_add_number = (unsigned long)exp_high.X_add_number >> 16;
3846 emit_expr (& exp_high, (unsigned int) THUMB_SIZE);
3847 exp->X_add_number &= 0xffff;
3848 emit_expr (exp, (unsigned int) THUMB_SIZE);
3851 /* Guess the instruction size based on the opcode. */
3854 thumb_insn_size (int opcode)
3856 if ((unsigned int) opcode < 0xe800u)
3858 else if ((unsigned int) opcode >= 0xe8000000u)
3865 emit_insn (expressionS *exp, int nbytes)
3869 if (exp->X_op == O_constant)
3874 size = thumb_insn_size (exp->X_add_number);
3878 if (size == 2 && (unsigned int)exp->X_add_number > 0xffffu)
3880 as_bad (_(".inst.n operand too big. "\
3881 "Use .inst.w instead"));
3886 if (now_pred.state == AUTOMATIC_PRED_BLOCK)
3887 set_pred_insn_type_nonvoid (OUTSIDE_PRED_INSN, 0);
3889 set_pred_insn_type_nonvoid (NEUTRAL_IT_INSN, 0);
3891 if (thumb_mode && (size > THUMB_SIZE) && !target_big_endian)
3892 emit_thumb32_expr (exp);
3894 emit_expr (exp, (unsigned int) size);
3896 it_fsm_post_encode ();
3900 as_bad (_("cannot determine Thumb instruction size. " \
3901 "Use .inst.n/.inst.w instead"));
3904 as_bad (_("constant expression required"));
3909 /* Like s_arm_elf_cons but do not use md_cons_align and
3910 set the mapping state to MAP_ARM/MAP_THUMB. */
3913 s_arm_elf_inst (int nbytes)
3915 if (is_it_end_of_statement ())
3917 demand_empty_rest_of_line ();
3921 /* Calling mapping_state () here will not change ARM/THUMB,
3922 but will ensure not to be in DATA state. */
3925 mapping_state (MAP_THUMB);
3930 as_bad (_("width suffixes are invalid in ARM mode"));
3931 ignore_rest_of_line ();
3937 mapping_state (MAP_ARM);
3946 if (! emit_insn (& exp, nbytes))
3948 ignore_rest_of_line ();
3952 while (*input_line_pointer++ == ',');
3954 /* Put terminator back into stream. */
3955 input_line_pointer --;
3956 demand_empty_rest_of_line ();
3959 /* Parse a .rel31 directive. */
3962 s_arm_rel31 (int ignored ATTRIBUTE_UNUSED)
3969 if (*input_line_pointer == '1')
3970 highbit = 0x80000000;
3971 else if (*input_line_pointer != '0')
3972 as_bad (_("expected 0 or 1"));
3974 input_line_pointer++;
3975 if (*input_line_pointer != ',')
3976 as_bad (_("missing comma"));
3977 input_line_pointer++;
3979 #ifdef md_flush_pending_output
3980 md_flush_pending_output ();
3983 #ifdef md_cons_align
3987 mapping_state (MAP_DATA);
3992 md_number_to_chars (p, highbit, 4);
3993 fix_new_arm (frag_now, p - frag_now->fr_literal, 4, &exp, 1,
3994 BFD_RELOC_ARM_PREL31);
3996 demand_empty_rest_of_line ();
3999 /* Directives: AEABI stack-unwind tables. */
4001 /* Parse an unwind_fnstart directive. Simply records the current location. */
4004 s_arm_unwind_fnstart (int ignored ATTRIBUTE_UNUSED)
4006 demand_empty_rest_of_line ();
4007 if (unwind.proc_start)
4009 as_bad (_("duplicate .fnstart directive"));
4013 /* Mark the start of the function. */
4014 unwind.proc_start = expr_build_dot ();
4016 /* Reset the rest of the unwind info. */
4017 unwind.opcode_count = 0;
4018 unwind.table_entry = NULL;
4019 unwind.personality_routine = NULL;
4020 unwind.personality_index = -1;
4021 unwind.frame_size = 0;
4022 unwind.fp_offset = 0;
4023 unwind.fp_reg = REG_SP;
4025 unwind.sp_restored = 0;
4029 /* Parse a handlerdata directive. Creates the exception handling table entry
4030 for the function. */
4033 s_arm_unwind_handlerdata (int ignored ATTRIBUTE_UNUSED)
4035 demand_empty_rest_of_line ();
4036 if (!unwind.proc_start)
4037 as_bad (MISSING_FNSTART);
4039 if (unwind.table_entry)
4040 as_bad (_("duplicate .handlerdata directive"));
4042 create_unwind_entry (1);
4045 /* Parse an unwind_fnend directive. Generates the index table entry. */
4048 s_arm_unwind_fnend (int ignored ATTRIBUTE_UNUSED)
4053 unsigned int marked_pr_dependency;
4055 demand_empty_rest_of_line ();
4057 if (!unwind.proc_start)
4059 as_bad (_(".fnend directive without .fnstart"));
4063 /* Add eh table entry. */
4064 if (unwind.table_entry == NULL)
4065 val = create_unwind_entry (0);
4069 /* Add index table entry. This is two words. */
4070 start_unwind_section (unwind.saved_seg, 1);
4071 frag_align (2, 0, 0);
4072 record_alignment (now_seg, 2);
4074 ptr = frag_more (8);
4076 where = frag_now_fix () - 8;
4078 /* Self relative offset of the function start. */
4079 fix_new (frag_now, where, 4, unwind.proc_start, 0, 1,
4080 BFD_RELOC_ARM_PREL31);
4082 /* Indicate dependency on EHABI-defined personality routines to the
4083 linker, if it hasn't been done already. */
4084 marked_pr_dependency
4085 = seg_info (now_seg)->tc_segment_info_data.marked_pr_dependency;
4086 if (unwind.personality_index >= 0 && unwind.personality_index < 3
4087 && !(marked_pr_dependency & (1 << unwind.personality_index)))
4089 static const char *const name[] =
4091 "__aeabi_unwind_cpp_pr0",
4092 "__aeabi_unwind_cpp_pr1",
4093 "__aeabi_unwind_cpp_pr2"
4095 symbolS *pr = symbol_find_or_make (name[unwind.personality_index]);
4096 fix_new (frag_now, where, 0, pr, 0, 1, BFD_RELOC_NONE);
4097 seg_info (now_seg)->tc_segment_info_data.marked_pr_dependency
4098 |= 1 << unwind.personality_index;
4102 /* Inline exception table entry. */
4103 md_number_to_chars (ptr + 4, val, 4);
4105 /* Self relative offset of the table entry. */
4106 fix_new (frag_now, where + 4, 4, unwind.table_entry, 0, 1,
4107 BFD_RELOC_ARM_PREL31);
4109 /* Restore the original section. */
4110 subseg_set (unwind.saved_seg, unwind.saved_subseg);
4112 unwind.proc_start = NULL;
4116 /* Parse an unwind_cantunwind directive. */
4119 s_arm_unwind_cantunwind (int ignored ATTRIBUTE_UNUSED)
4121 demand_empty_rest_of_line ();
4122 if (!unwind.proc_start)
4123 as_bad (MISSING_FNSTART);
4125 if (unwind.personality_routine || unwind.personality_index != -1)
4126 as_bad (_("personality routine specified for cantunwind frame"));
4128 unwind.personality_index = -2;
4132 /* Parse a personalityindex directive. */
4135 s_arm_unwind_personalityindex (int ignored ATTRIBUTE_UNUSED)
4139 if (!unwind.proc_start)
4140 as_bad (MISSING_FNSTART);
4142 if (unwind.personality_routine || unwind.personality_index != -1)
4143 as_bad (_("duplicate .personalityindex directive"));
4147 if (exp.X_op != O_constant
4148 || exp.X_add_number < 0 || exp.X_add_number > 15)
4150 as_bad (_("bad personality routine number"));
4151 ignore_rest_of_line ();
4155 unwind.personality_index = exp.X_add_number;
4157 demand_empty_rest_of_line ();
4161 /* Parse a personality directive. */
4164 s_arm_unwind_personality (int ignored ATTRIBUTE_UNUSED)
4168 if (!unwind.proc_start)
4169 as_bad (MISSING_FNSTART);
4171 if (unwind.personality_routine || unwind.personality_index != -1)
4172 as_bad (_("duplicate .personality directive"));
4174 c = get_symbol_name (& name);
4175 p = input_line_pointer;
4177 ++ input_line_pointer;
4178 unwind.personality_routine = symbol_find_or_make (name);
4180 demand_empty_rest_of_line ();
4184 /* Parse a directive saving core registers. */
4187 s_arm_unwind_save_core (void)
4193 range = parse_reg_list (&input_line_pointer, REGLIST_RN);
4196 as_bad (_("expected register list"));
4197 ignore_rest_of_line ();
4201 demand_empty_rest_of_line ();
4203 /* Turn .unwind_movsp ip followed by .unwind_save {..., ip, ...}
4204 into .unwind_save {..., sp...}. We aren't bothered about the value of
4205 ip because it is clobbered by calls. */
4206 if (unwind.sp_restored && unwind.fp_reg == 12
4207 && (range & 0x3000) == 0x1000)
4209 unwind.opcode_count--;
4210 unwind.sp_restored = 0;
4211 range = (range | 0x2000) & ~0x1000;
4212 unwind.pending_offset = 0;
4218 /* See if we can use the short opcodes. These pop a block of up to 8
4219 registers starting with r4, plus maybe r14. */
4220 for (n = 0; n < 8; n++)
4222 /* Break at the first non-saved register. */
4223 if ((range & (1 << (n + 4))) == 0)
4226 /* See if there are any other bits set. */
4227 if (n == 0 || (range & (0xfff0 << n) & 0xbff0) != 0)
4229 /* Use the long form. */
4230 op = 0x8000 | ((range >> 4) & 0xfff);
4231 add_unwind_opcode (op, 2);
4235 /* Use the short form. */
4237 op = 0xa8; /* Pop r14. */
4239 op = 0xa0; /* Do not pop r14. */
4241 add_unwind_opcode (op, 1);
4248 op = 0xb100 | (range & 0xf);
4249 add_unwind_opcode (op, 2);
4252 /* Record the number of bytes pushed. */
4253 for (n = 0; n < 16; n++)
4255 if (range & (1 << n))
4256 unwind.frame_size += 4;
4261 /* Parse a directive saving FPA registers. */
4264 s_arm_unwind_save_fpa (int reg)
4270 /* Get Number of registers to transfer. */
4271 if (skip_past_comma (&input_line_pointer) != FAIL)
4274 exp.X_op = O_illegal;
4276 if (exp.X_op != O_constant)
4278 as_bad (_("expected , <constant>"));
4279 ignore_rest_of_line ();
4283 num_regs = exp.X_add_number;
4285 if (num_regs < 1 || num_regs > 4)
4287 as_bad (_("number of registers must be in the range [1:4]"));
4288 ignore_rest_of_line ();
4292 demand_empty_rest_of_line ();
4297 op = 0xb4 | (num_regs - 1);
4298 add_unwind_opcode (op, 1);
4303 op = 0xc800 | (reg << 4) | (num_regs - 1);
4304 add_unwind_opcode (op, 2);
4306 unwind.frame_size += num_regs * 12;
4310 /* Parse a directive saving VFP registers for ARMv6 and above. */
4313 s_arm_unwind_save_vfp_armv6 (void)
4318 int num_vfpv3_regs = 0;
4319 int num_regs_below_16;
4320 bfd_boolean partial_match;
4322 count = parse_vfp_reg_list (&input_line_pointer, &start, REGLIST_VFP_D,
4326 as_bad (_("expected register list"));
4327 ignore_rest_of_line ();
4331 demand_empty_rest_of_line ();
4333 /* We always generate FSTMD/FLDMD-style unwinding opcodes (rather
4334 than FSTMX/FLDMX-style ones). */
4336 /* Generate opcode for (VFPv3) registers numbered in the range 16 .. 31. */
4338 num_vfpv3_regs = count;
4339 else if (start + count > 16)
4340 num_vfpv3_regs = start + count - 16;
4342 if (num_vfpv3_regs > 0)
4344 int start_offset = start > 16 ? start - 16 : 0;
4345 op = 0xc800 | (start_offset << 4) | (num_vfpv3_regs - 1);
4346 add_unwind_opcode (op, 2);
4349 /* Generate opcode for registers numbered in the range 0 .. 15. */
4350 num_regs_below_16 = num_vfpv3_regs > 0 ? 16 - (int) start : count;
4351 gas_assert (num_regs_below_16 + num_vfpv3_regs == count);
4352 if (num_regs_below_16 > 0)
4354 op = 0xc900 | (start << 4) | (num_regs_below_16 - 1);
4355 add_unwind_opcode (op, 2);
4358 unwind.frame_size += count * 8;
4362 /* Parse a directive saving VFP registers for pre-ARMv6. */
4365 s_arm_unwind_save_vfp (void)
4370 bfd_boolean partial_match;
4372 count = parse_vfp_reg_list (&input_line_pointer, ®, REGLIST_VFP_D,
4376 as_bad (_("expected register list"));
4377 ignore_rest_of_line ();
4381 demand_empty_rest_of_line ();
4386 op = 0xb8 | (count - 1);
4387 add_unwind_opcode (op, 1);
4392 op = 0xb300 | (reg << 4) | (count - 1);
4393 add_unwind_opcode (op, 2);
4395 unwind.frame_size += count * 8 + 4;
4399 /* Parse a directive saving iWMMXt data registers. */
4402 s_arm_unwind_save_mmxwr (void)
4410 if (*input_line_pointer == '{')
4411 input_line_pointer++;
4415 reg = arm_reg_parse (&input_line_pointer, REG_TYPE_MMXWR);
4419 as_bad ("%s", _(reg_expected_msgs[REG_TYPE_MMXWR]));
4424 as_tsktsk (_("register list not in ascending order"));
4427 if (*input_line_pointer == '-')
4429 input_line_pointer++;
4430 hi_reg = arm_reg_parse (&input_line_pointer, REG_TYPE_MMXWR);
4433 as_bad ("%s", _(reg_expected_msgs[REG_TYPE_MMXWR]));
4436 else if (reg >= hi_reg)
4438 as_bad (_("bad register range"));
4441 for (; reg < hi_reg; reg++)
4445 while (skip_past_comma (&input_line_pointer) != FAIL);
4447 skip_past_char (&input_line_pointer, '}');
4449 demand_empty_rest_of_line ();
4451 /* Generate any deferred opcodes because we're going to be looking at
4453 flush_pending_unwind ();
4455 for (i = 0; i < 16; i++)
4457 if (mask & (1 << i))
4458 unwind.frame_size += 8;
4461 /* Attempt to combine with a previous opcode. We do this because gcc
4462 likes to output separate unwind directives for a single block of
4464 if (unwind.opcode_count > 0)
4466 i = unwind.opcodes[unwind.opcode_count - 1];
4467 if ((i & 0xf8) == 0xc0)
4470 /* Only merge if the blocks are contiguous. */
4473 if ((mask & 0xfe00) == (1 << 9))
4475 mask |= ((1 << (i + 11)) - 1) & 0xfc00;
4476 unwind.opcode_count--;
4479 else if (i == 6 && unwind.opcode_count >= 2)
4481 i = unwind.opcodes[unwind.opcode_count - 2];
4485 op = 0xffff << (reg - 1);
4487 && ((mask & op) == (1u << (reg - 1))))
4489 op = (1 << (reg + i + 1)) - 1;
4490 op &= ~((1 << reg) - 1);
4492 unwind.opcode_count -= 2;
4499 /* We want to generate opcodes in the order the registers have been
4500 saved, ie. descending order. */
4501 for (reg = 15; reg >= -1; reg--)
4503 /* Save registers in blocks. */
4505 || !(mask & (1 << reg)))
4507 /* We found an unsaved reg. Generate opcodes to save the
4514 op = 0xc0 | (hi_reg - 10);
4515 add_unwind_opcode (op, 1);
4520 op = 0xc600 | ((reg + 1) << 4) | ((hi_reg - reg) - 1);
4521 add_unwind_opcode (op, 2);
4530 ignore_rest_of_line ();
4534 s_arm_unwind_save_mmxwcg (void)
4541 if (*input_line_pointer == '{')
4542 input_line_pointer++;
4544 skip_whitespace (input_line_pointer);
4548 reg = arm_reg_parse (&input_line_pointer, REG_TYPE_MMXWCG);
4552 as_bad ("%s", _(reg_expected_msgs[REG_TYPE_MMXWCG]));
4558 as_tsktsk (_("register list not in ascending order"));
4561 if (*input_line_pointer == '-')
4563 input_line_pointer++;
4564 hi_reg = arm_reg_parse (&input_line_pointer, REG_TYPE_MMXWCG);
4567 as_bad ("%s", _(reg_expected_msgs[REG_TYPE_MMXWCG]));
4570 else if (reg >= hi_reg)
4572 as_bad (_("bad register range"));
4575 for (; reg < hi_reg; reg++)
4579 while (skip_past_comma (&input_line_pointer) != FAIL);
4581 skip_past_char (&input_line_pointer, '}');
4583 demand_empty_rest_of_line ();
4585 /* Generate any deferred opcodes because we're going to be looking at
4587 flush_pending_unwind ();
4589 for (reg = 0; reg < 16; reg++)
4591 if (mask & (1 << reg))
4592 unwind.frame_size += 4;
4595 add_unwind_opcode (op, 2);
4598 ignore_rest_of_line ();
4602 /* Parse an unwind_save directive.
4603 If the argument is non-zero, this is a .vsave directive. */
4606 s_arm_unwind_save (int arch_v6)
4609 struct reg_entry *reg;
4610 bfd_boolean had_brace = FALSE;
4612 if (!unwind.proc_start)
4613 as_bad (MISSING_FNSTART);
4615 /* Figure out what sort of save we have. */
4616 peek = input_line_pointer;
4624 reg = arm_reg_parse_multi (&peek);
4628 as_bad (_("register expected"));
4629 ignore_rest_of_line ();
4638 as_bad (_("FPA .unwind_save does not take a register list"));
4639 ignore_rest_of_line ();
4642 input_line_pointer = peek;
4643 s_arm_unwind_save_fpa (reg->number);
4647 s_arm_unwind_save_core ();
4652 s_arm_unwind_save_vfp_armv6 ();
4654 s_arm_unwind_save_vfp ();
4657 case REG_TYPE_MMXWR:
4658 s_arm_unwind_save_mmxwr ();
4661 case REG_TYPE_MMXWCG:
4662 s_arm_unwind_save_mmxwcg ();
4666 as_bad (_(".unwind_save does not support this kind of register"));
4667 ignore_rest_of_line ();
4672 /* Parse an unwind_movsp directive. */
4675 s_arm_unwind_movsp (int ignored ATTRIBUTE_UNUSED)
4681 if (!unwind.proc_start)
4682 as_bad (MISSING_FNSTART);
4684 reg = arm_reg_parse (&input_line_pointer, REG_TYPE_RN);
4687 as_bad ("%s", _(reg_expected_msgs[REG_TYPE_RN]));
4688 ignore_rest_of_line ();
4692 /* Optional constant. */
4693 if (skip_past_comma (&input_line_pointer) != FAIL)
4695 if (immediate_for_directive (&offset) == FAIL)
4701 demand_empty_rest_of_line ();
4703 if (reg == REG_SP || reg == REG_PC)
4705 as_bad (_("SP and PC not permitted in .unwind_movsp directive"));
4709 if (unwind.fp_reg != REG_SP)
4710 as_bad (_("unexpected .unwind_movsp directive"));
4712 /* Generate opcode to restore the value. */
4714 add_unwind_opcode (op, 1);
4716 /* Record the information for later. */
4717 unwind.fp_reg = reg;
4718 unwind.fp_offset = unwind.frame_size - offset;
4719 unwind.sp_restored = 1;
4722 /* Parse an unwind_pad directive. */
4725 s_arm_unwind_pad (int ignored ATTRIBUTE_UNUSED)
4729 if (!unwind.proc_start)
4730 as_bad (MISSING_FNSTART);
4732 if (immediate_for_directive (&offset) == FAIL)
4737 as_bad (_("stack increment must be multiple of 4"));
4738 ignore_rest_of_line ();
4742 /* Don't generate any opcodes, just record the details for later. */
4743 unwind.frame_size += offset;
4744 unwind.pending_offset += offset;
4746 demand_empty_rest_of_line ();
4749 /* Parse an unwind_setfp directive. */
4752 s_arm_unwind_setfp (int ignored ATTRIBUTE_UNUSED)
4758 if (!unwind.proc_start)
4759 as_bad (MISSING_FNSTART);
4761 fp_reg = arm_reg_parse (&input_line_pointer, REG_TYPE_RN);
4762 if (skip_past_comma (&input_line_pointer) == FAIL)
4765 sp_reg = arm_reg_parse (&input_line_pointer, REG_TYPE_RN);
4767 if (fp_reg == FAIL || sp_reg == FAIL)
4769 as_bad (_("expected <reg>, <reg>"));
4770 ignore_rest_of_line ();
4774 /* Optional constant. */
4775 if (skip_past_comma (&input_line_pointer) != FAIL)
4777 if (immediate_for_directive (&offset) == FAIL)
4783 demand_empty_rest_of_line ();
4785 if (sp_reg != REG_SP && sp_reg != unwind.fp_reg)
4787 as_bad (_("register must be either sp or set by a previous"
4788 "unwind_movsp directive"));
4792 /* Don't generate any opcodes, just record the information for later. */
4793 unwind.fp_reg = fp_reg;
4795 if (sp_reg == REG_SP)
4796 unwind.fp_offset = unwind.frame_size - offset;
4798 unwind.fp_offset -= offset;
4801 /* Parse an unwind_raw directive. */
4804 s_arm_unwind_raw (int ignored ATTRIBUTE_UNUSED)
4807 /* This is an arbitrary limit. */
4808 unsigned char op[16];
4811 if (!unwind.proc_start)
4812 as_bad (MISSING_FNSTART);
4815 if (exp.X_op == O_constant
4816 && skip_past_comma (&input_line_pointer) != FAIL)
4818 unwind.frame_size += exp.X_add_number;
4822 exp.X_op = O_illegal;
4824 if (exp.X_op != O_constant)
4826 as_bad (_("expected <offset>, <opcode>"));
4827 ignore_rest_of_line ();
4833 /* Parse the opcode. */
4838 as_bad (_("unwind opcode too long"));
4839 ignore_rest_of_line ();
4841 if (exp.X_op != O_constant || exp.X_add_number & ~0xff)
4843 as_bad (_("invalid unwind opcode"));
4844 ignore_rest_of_line ();
4847 op[count++] = exp.X_add_number;
4849 /* Parse the next byte. */
4850 if (skip_past_comma (&input_line_pointer) == FAIL)
4856 /* Add the opcode bytes in reverse order. */
4858 add_unwind_opcode (op[count], 1);
4860 demand_empty_rest_of_line ();
4864 /* Parse a .eabi_attribute directive. */
4867 s_arm_eabi_attribute (int ignored ATTRIBUTE_UNUSED)
4869 int tag = obj_elf_vendor_attribute (OBJ_ATTR_PROC);
4871 if (tag >= 0 && tag < NUM_KNOWN_OBJ_ATTRIBUTES)
4872 attributes_set_explicitly[tag] = 1;
4875 /* Emit a tls fix for the symbol. */
4878 s_arm_tls_descseq (int ignored ATTRIBUTE_UNUSED)
4882 #ifdef md_flush_pending_output
4883 md_flush_pending_output ();
4886 #ifdef md_cons_align
4890 /* Since we're just labelling the code, there's no need to define a
4893 p = obstack_next_free (&frchain_now->frch_obstack);
4894 fix_new_arm (frag_now, p - frag_now->fr_literal, 4, &exp, 0,
4895 thumb_mode ? BFD_RELOC_ARM_THM_TLS_DESCSEQ
4896 : BFD_RELOC_ARM_TLS_DESCSEQ);
4898 #endif /* OBJ_ELF */
4900 static void s_arm_arch (int);
4901 static void s_arm_object_arch (int);
4902 static void s_arm_cpu (int);
4903 static void s_arm_fpu (int);
4904 static void s_arm_arch_extension (int);
4909 pe_directive_secrel (int dummy ATTRIBUTE_UNUSED)
4916 if (exp.X_op == O_symbol)
4917 exp.X_op = O_secrel;
4919 emit_expr (&exp, 4);
4921 while (*input_line_pointer++ == ',');
4923 input_line_pointer--;
4924 demand_empty_rest_of_line ();
4928 /* This table describes all the machine specific pseudo-ops the assembler
4929 has to support. The fields are:
4930 pseudo-op name without dot
4931 function to call to execute this pseudo-op
4932 Integer arg to pass to the function. */
4934 const pseudo_typeS md_pseudo_table[] =
4936 /* Never called because '.req' does not start a line. */
4937 { "req", s_req, 0 },
4938 /* Following two are likewise never called. */
4941 { "unreq", s_unreq, 0 },
4942 { "bss", s_bss, 0 },
4943 { "align", s_align_ptwo, 2 },
4944 { "arm", s_arm, 0 },
4945 { "thumb", s_thumb, 0 },
4946 { "code", s_code, 0 },
4947 { "force_thumb", s_force_thumb, 0 },
4948 { "thumb_func", s_thumb_func, 0 },
4949 { "thumb_set", s_thumb_set, 0 },
4950 { "even", s_even, 0 },
4951 { "ltorg", s_ltorg, 0 },
4952 { "pool", s_ltorg, 0 },
4953 { "syntax", s_syntax, 0 },
4954 { "cpu", s_arm_cpu, 0 },
4955 { "arch", s_arm_arch, 0 },
4956 { "object_arch", s_arm_object_arch, 0 },
4957 { "fpu", s_arm_fpu, 0 },
4958 { "arch_extension", s_arm_arch_extension, 0 },
4960 { "word", s_arm_elf_cons, 4 },
4961 { "long", s_arm_elf_cons, 4 },
4962 { "inst.n", s_arm_elf_inst, 2 },
4963 { "inst.w", s_arm_elf_inst, 4 },
4964 { "inst", s_arm_elf_inst, 0 },
4965 { "rel31", s_arm_rel31, 0 },
4966 { "fnstart", s_arm_unwind_fnstart, 0 },
4967 { "fnend", s_arm_unwind_fnend, 0 },
4968 { "cantunwind", s_arm_unwind_cantunwind, 0 },
4969 { "personality", s_arm_unwind_personality, 0 },
4970 { "personalityindex", s_arm_unwind_personalityindex, 0 },
4971 { "handlerdata", s_arm_unwind_handlerdata, 0 },
4972 { "save", s_arm_unwind_save, 0 },
4973 { "vsave", s_arm_unwind_save, 1 },
4974 { "movsp", s_arm_unwind_movsp, 0 },
4975 { "pad", s_arm_unwind_pad, 0 },
4976 { "setfp", s_arm_unwind_setfp, 0 },
4977 { "unwind_raw", s_arm_unwind_raw, 0 },
4978 { "eabi_attribute", s_arm_eabi_attribute, 0 },
4979 { "tlsdescseq", s_arm_tls_descseq, 0 },
4983 /* These are used for dwarf. */
4987 /* These are used for dwarf2. */
4988 { "file", dwarf2_directive_file, 0 },
4989 { "loc", dwarf2_directive_loc, 0 },
4990 { "loc_mark_labels", dwarf2_directive_loc_mark_labels, 0 },
4992 { "extend", float_cons, 'x' },
4993 { "ldouble", float_cons, 'x' },
4994 { "packed", float_cons, 'p' },
4996 {"secrel32", pe_directive_secrel, 0},
4999 /* These are for compatibility with CodeComposer Studio. */
5000 {"ref", s_ccs_ref, 0},
5001 {"def", s_ccs_def, 0},
5002 {"asmfunc", s_ccs_asmfunc, 0},
5003 {"endasmfunc", s_ccs_endasmfunc, 0},
5008 /* Parser functions used exclusively in instruction operands. */
5010 /* Generic immediate-value read function for use in insn parsing.
5011 STR points to the beginning of the immediate (the leading #);
5012 VAL receives the value; if the value is outside [MIN, MAX]
5013 issue an error. PREFIX_OPT is true if the immediate prefix is
5017 parse_immediate (char **str, int *val, int min, int max,
5018 bfd_boolean prefix_opt)
5022 my_get_expression (&exp, str, prefix_opt ? GE_OPT_PREFIX : GE_IMM_PREFIX);
5023 if (exp.X_op != O_constant)
5025 inst.error = _("constant expression required");
5029 if (exp.X_add_number < min || exp.X_add_number > max)
5031 inst.error = _("immediate value out of range");
5035 *val = exp.X_add_number;
5039 /* Less-generic immediate-value read function with the possibility of loading a
5040 big (64-bit) immediate, as required by Neon VMOV, VMVN and logic immediate
5041 instructions. Puts the result directly in inst.operands[i]. */
5044 parse_big_immediate (char **str, int i, expressionS *in_exp,
5045 bfd_boolean allow_symbol_p)
5048 expressionS *exp_p = in_exp ? in_exp : &exp;
5051 my_get_expression (exp_p, &ptr, GE_OPT_PREFIX_BIG);
5053 if (exp_p->X_op == O_constant)
5055 inst.operands[i].imm = exp_p->X_add_number & 0xffffffff;
5056 /* If we're on a 64-bit host, then a 64-bit number can be returned using
5057 O_constant. We have to be careful not to break compilation for
5058 32-bit X_add_number, though. */
5059 if ((exp_p->X_add_number & ~(offsetT)(0xffffffffU)) != 0)
5061 /* X >> 32 is illegal if sizeof (exp_p->X_add_number) == 4. */
5062 inst.operands[i].reg = (((exp_p->X_add_number >> 16) >> 16)
5064 inst.operands[i].regisimm = 1;
5067 else if (exp_p->X_op == O_big
5068 && LITTLENUM_NUMBER_OF_BITS * exp_p->X_add_number > 32)
5070 unsigned parts = 32 / LITTLENUM_NUMBER_OF_BITS, j, idx = 0;
5072 /* Bignums have their least significant bits in
5073 generic_bignum[0]. Make sure we put 32 bits in imm and
5074 32 bits in reg, in a (hopefully) portable way. */
5075 gas_assert (parts != 0);
5077 /* Make sure that the number is not too big.
5078 PR 11972: Bignums can now be sign-extended to the
5079 size of a .octa so check that the out of range bits
5080 are all zero or all one. */
5081 if (LITTLENUM_NUMBER_OF_BITS * exp_p->X_add_number > 64)
5083 LITTLENUM_TYPE m = -1;
5085 if (generic_bignum[parts * 2] != 0
5086 && generic_bignum[parts * 2] != m)
5089 for (j = parts * 2 + 1; j < (unsigned) exp_p->X_add_number; j++)
5090 if (generic_bignum[j] != generic_bignum[j-1])
5094 inst.operands[i].imm = 0;
5095 for (j = 0; j < parts; j++, idx++)
5096 inst.operands[i].imm |= generic_bignum[idx]
5097 << (LITTLENUM_NUMBER_OF_BITS * j);
5098 inst.operands[i].reg = 0;
5099 for (j = 0; j < parts; j++, idx++)
5100 inst.operands[i].reg |= generic_bignum[idx]
5101 << (LITTLENUM_NUMBER_OF_BITS * j);
5102 inst.operands[i].regisimm = 1;
5104 else if (!(exp_p->X_op == O_symbol && allow_symbol_p))
5112 /* Returns the pseudo-register number of an FPA immediate constant,
5113 or FAIL if there isn't a valid constant here. */
5116 parse_fpa_immediate (char ** str)
5118 LITTLENUM_TYPE words[MAX_LITTLENUMS];
5124 /* First try and match exact strings, this is to guarantee
5125 that some formats will work even for cross assembly. */
5127 for (i = 0; fp_const[i]; i++)
5129 if (strncmp (*str, fp_const[i], strlen (fp_const[i])) == 0)
5133 *str += strlen (fp_const[i]);
5134 if (is_end_of_line[(unsigned char) **str])
5140 /* Just because we didn't get a match doesn't mean that the constant
5141 isn't valid, just that it is in a format that we don't
5142 automatically recognize. Try parsing it with the standard
5143 expression routines. */
5145 memset (words, 0, MAX_LITTLENUMS * sizeof (LITTLENUM_TYPE));
5147 /* Look for a raw floating point number. */
5148 if ((save_in = atof_ieee (*str, 'x', words)) != NULL
5149 && is_end_of_line[(unsigned char) *save_in])
5151 for (i = 0; i < NUM_FLOAT_VALS; i++)
5153 for (j = 0; j < MAX_LITTLENUMS; j++)
5155 if (words[j] != fp_values[i][j])
5159 if (j == MAX_LITTLENUMS)
5167 /* Try and parse a more complex expression, this will probably fail
5168 unless the code uses a floating point prefix (eg "0f"). */
5169 save_in = input_line_pointer;
5170 input_line_pointer = *str;
5171 if (expression (&exp) == absolute_section
5172 && exp.X_op == O_big
5173 && exp.X_add_number < 0)
5175 /* FIXME: 5 = X_PRECISION, should be #define'd where we can use it.
5177 #define X_PRECISION 5
5178 #define E_PRECISION 15L
5179 if (gen_to_words (words, X_PRECISION, E_PRECISION) == 0)
5181 for (i = 0; i < NUM_FLOAT_VALS; i++)
5183 for (j = 0; j < MAX_LITTLENUMS; j++)
5185 if (words[j] != fp_values[i][j])
5189 if (j == MAX_LITTLENUMS)
5191 *str = input_line_pointer;
5192 input_line_pointer = save_in;
5199 *str = input_line_pointer;
5200 input_line_pointer = save_in;
5201 inst.error = _("invalid FPA immediate expression");
5205 /* Returns 1 if a number has "quarter-precision" float format
5206 0baBbbbbbc defgh000 00000000 00000000. */
5209 is_quarter_float (unsigned imm)
5211 int bs = (imm & 0x20000000) ? 0x3e000000 : 0x40000000;
5212 return (imm & 0x7ffff) == 0 && ((imm & 0x7e000000) ^ bs) == 0;
5216 /* Detect the presence of a floating point or integer zero constant,
5220 parse_ifimm_zero (char **in)
5224 if (!is_immediate_prefix (**in))
5226 /* In unified syntax, all prefixes are optional. */
5227 if (!unified_syntax)
5233 /* Accept #0x0 as a synonym for #0. */
5234 if (strncmp (*in, "0x", 2) == 0)
5237 if (parse_immediate (in, &val, 0, 0, TRUE) == FAIL)
5242 error_code = atof_generic (in, ".", EXP_CHARS,
5243 &generic_floating_point_number);
5246 && generic_floating_point_number.sign == '+'
5247 && (generic_floating_point_number.low
5248 > generic_floating_point_number.leader))
5254 /* Parse an 8-bit "quarter-precision" floating point number of the form:
5255 0baBbbbbbc defgh000 00000000 00000000.
5256 The zero and minus-zero cases need special handling, since they can't be
5257 encoded in the "quarter-precision" float format, but can nonetheless be
5258 loaded as integer constants. */
5261 parse_qfloat_immediate (char **ccp, int *immed)
5265 LITTLENUM_TYPE words[MAX_LITTLENUMS];
5266 int found_fpchar = 0;
5268 skip_past_char (&str, '#');
5270 /* We must not accidentally parse an integer as a floating-point number. Make
5271 sure that the value we parse is not an integer by checking for special
5272 characters '.' or 'e'.
5273 FIXME: This is a horrible hack, but doing better is tricky because type
5274 information isn't in a very usable state at parse time. */
5276 skip_whitespace (fpnum);
5278 if (strncmp (fpnum, "0x", 2) == 0)
5282 for (; *fpnum != '\0' && *fpnum != ' ' && *fpnum != '\n'; fpnum++)
5283 if (*fpnum == '.' || *fpnum == 'e' || *fpnum == 'E')
5293 if ((str = atof_ieee (str, 's', words)) != NULL)
5295 unsigned fpword = 0;
5298 /* Our FP word must be 32 bits (single-precision FP). */
5299 for (i = 0; i < 32 / LITTLENUM_NUMBER_OF_BITS; i++)
5301 fpword <<= LITTLENUM_NUMBER_OF_BITS;
5305 if (is_quarter_float (fpword) || (fpword & 0x7fffffff) == 0)
5318 /* Shift operands. */
5321 SHIFT_LSL, SHIFT_LSR, SHIFT_ASR, SHIFT_ROR, SHIFT_RRX, SHIFT_UXTW
5324 struct asm_shift_name
5327 enum shift_kind kind;
5330 /* Third argument to parse_shift. */
5331 enum parse_shift_mode
5333 NO_SHIFT_RESTRICT, /* Any kind of shift is accepted. */
5334 SHIFT_IMMEDIATE, /* Shift operand must be an immediate. */
5335 SHIFT_LSL_OR_ASR_IMMEDIATE, /* Shift must be LSL or ASR immediate. */
5336 SHIFT_ASR_IMMEDIATE, /* Shift must be ASR immediate. */
5337 SHIFT_LSL_IMMEDIATE, /* Shift must be LSL immediate. */
5338 SHIFT_UXTW_IMMEDIATE /* Shift must be UXTW immediate. */
5341 /* Parse a <shift> specifier on an ARM data processing instruction.
5342 This has three forms:
5344 (LSL|LSR|ASL|ASR|ROR) Rs
5345 (LSL|LSR|ASL|ASR|ROR) #imm
5348 Note that ASL is assimilated to LSL in the instruction encoding, and
5349 RRX to ROR #0 (which cannot be written as such). */
5352 parse_shift (char **str, int i, enum parse_shift_mode mode)
5354 const struct asm_shift_name *shift_name;
5355 enum shift_kind shift;
5360 for (p = *str; ISALPHA (*p); p++)
5365 inst.error = _("shift expression expected");
5369 shift_name = (const struct asm_shift_name *) hash_find_n (arm_shift_hsh, *str,
5372 if (shift_name == NULL)
5374 inst.error = _("shift expression expected");
5378 shift = shift_name->kind;
5382 case NO_SHIFT_RESTRICT:
5383 case SHIFT_IMMEDIATE:
5384 if (shift == SHIFT_UXTW)
5386 inst.error = _("'UXTW' not allowed here");
5391 case SHIFT_LSL_OR_ASR_IMMEDIATE:
5392 if (shift != SHIFT_LSL && shift != SHIFT_ASR)
5394 inst.error = _("'LSL' or 'ASR' required");
5399 case SHIFT_LSL_IMMEDIATE:
5400 if (shift != SHIFT_LSL)
5402 inst.error = _("'LSL' required");
5407 case SHIFT_ASR_IMMEDIATE:
5408 if (shift != SHIFT_ASR)
5410 inst.error = _("'ASR' required");
5414 case SHIFT_UXTW_IMMEDIATE:
5415 if (shift != SHIFT_UXTW)
5417 inst.error = _("'UXTW' required");
5425 if (shift != SHIFT_RRX)
5427 /* Whitespace can appear here if the next thing is a bare digit. */
5428 skip_whitespace (p);
5430 if (mode == NO_SHIFT_RESTRICT
5431 && (reg = arm_reg_parse (&p, REG_TYPE_RN)) != FAIL)
5433 inst.operands[i].imm = reg;
5434 inst.operands[i].immisreg = 1;
5436 else if (my_get_expression (&inst.relocs[0].exp, &p, GE_IMM_PREFIX))
5439 inst.operands[i].shift_kind = shift;
5440 inst.operands[i].shifted = 1;
5445 /* Parse a <shifter_operand> for an ARM data processing instruction:
5448 #<immediate>, <rotate>
5452 where <shift> is defined by parse_shift above, and <rotate> is a
5453 multiple of 2 between 0 and 30. Validation of immediate operands
5454 is deferred to md_apply_fix. */
5457 parse_shifter_operand (char **str, int i)
5462 if ((value = arm_reg_parse (str, REG_TYPE_RN)) != FAIL)
5464 inst.operands[i].reg = value;
5465 inst.operands[i].isreg = 1;
5467 /* parse_shift will override this if appropriate */
5468 inst.relocs[0].exp.X_op = O_constant;
5469 inst.relocs[0].exp.X_add_number = 0;
5471 if (skip_past_comma (str) == FAIL)
5474 /* Shift operation on register. */
5475 return parse_shift (str, i, NO_SHIFT_RESTRICT);
5478 if (my_get_expression (&inst.relocs[0].exp, str, GE_IMM_PREFIX))
5481 if (skip_past_comma (str) == SUCCESS)
5483 /* #x, y -- ie explicit rotation by Y. */
5484 if (my_get_expression (&exp, str, GE_NO_PREFIX))
5487 if (exp.X_op != O_constant || inst.relocs[0].exp.X_op != O_constant)
5489 inst.error = _("constant expression expected");
5493 value = exp.X_add_number;
5494 if (value < 0 || value > 30 || value % 2 != 0)
5496 inst.error = _("invalid rotation");
5499 if (inst.relocs[0].exp.X_add_number < 0
5500 || inst.relocs[0].exp.X_add_number > 255)
5502 inst.error = _("invalid constant");
5506 /* Encode as specified. */
5507 inst.operands[i].imm = inst.relocs[0].exp.X_add_number | value << 7;
5511 inst.relocs[0].type = BFD_RELOC_ARM_IMMEDIATE;
5512 inst.relocs[0].pc_rel = 0;
5516 /* Group relocation information. Each entry in the table contains the
5517 textual name of the relocation as may appear in assembler source
5518 and must end with a colon.
5519 Along with this textual name are the relocation codes to be used if
5520 the corresponding instruction is an ALU instruction (ADD or SUB only),
5521 an LDR, an LDRS, or an LDC. */
5523 struct group_reloc_table_entry
5534 /* Varieties of non-ALU group relocation. */
5542 static struct group_reloc_table_entry group_reloc_table[] =
5543 { /* Program counter relative: */
5545 BFD_RELOC_ARM_ALU_PC_G0_NC, /* ALU */
5550 BFD_RELOC_ARM_ALU_PC_G0, /* ALU */
5551 BFD_RELOC_ARM_LDR_PC_G0, /* LDR */
5552 BFD_RELOC_ARM_LDRS_PC_G0, /* LDRS */
5553 BFD_RELOC_ARM_LDC_PC_G0 }, /* LDC */
5555 BFD_RELOC_ARM_ALU_PC_G1_NC, /* ALU */
5560 BFD_RELOC_ARM_ALU_PC_G1, /* ALU */
5561 BFD_RELOC_ARM_LDR_PC_G1, /* LDR */
5562 BFD_RELOC_ARM_LDRS_PC_G1, /* LDRS */
5563 BFD_RELOC_ARM_LDC_PC_G1 }, /* LDC */
5565 BFD_RELOC_ARM_ALU_PC_G2, /* ALU */
5566 BFD_RELOC_ARM_LDR_PC_G2, /* LDR */
5567 BFD_RELOC_ARM_LDRS_PC_G2, /* LDRS */
5568 BFD_RELOC_ARM_LDC_PC_G2 }, /* LDC */
5569 /* Section base relative */
5571 BFD_RELOC_ARM_ALU_SB_G0_NC, /* ALU */
5576 BFD_RELOC_ARM_ALU_SB_G0, /* ALU */
5577 BFD_RELOC_ARM_LDR_SB_G0, /* LDR */
5578 BFD_RELOC_ARM_LDRS_SB_G0, /* LDRS */
5579 BFD_RELOC_ARM_LDC_SB_G0 }, /* LDC */
5581 BFD_RELOC_ARM_ALU_SB_G1_NC, /* ALU */
5586 BFD_RELOC_ARM_ALU_SB_G1, /* ALU */
5587 BFD_RELOC_ARM_LDR_SB_G1, /* LDR */
5588 BFD_RELOC_ARM_LDRS_SB_G1, /* LDRS */
5589 BFD_RELOC_ARM_LDC_SB_G1 }, /* LDC */
5591 BFD_RELOC_ARM_ALU_SB_G2, /* ALU */
5592 BFD_RELOC_ARM_LDR_SB_G2, /* LDR */
5593 BFD_RELOC_ARM_LDRS_SB_G2, /* LDRS */
5594 BFD_RELOC_ARM_LDC_SB_G2 }, /* LDC */
5595 /* Absolute thumb alu relocations. */
5597 BFD_RELOC_ARM_THUMB_ALU_ABS_G0_NC,/* ALU. */
5602 BFD_RELOC_ARM_THUMB_ALU_ABS_G1_NC,/* ALU. */
5607 BFD_RELOC_ARM_THUMB_ALU_ABS_G2_NC,/* ALU. */
5612 BFD_RELOC_ARM_THUMB_ALU_ABS_G3_NC,/* ALU. */
5617 /* Given the address of a pointer pointing to the textual name of a group
5618 relocation as may appear in assembler source, attempt to find its details
5619 in group_reloc_table. The pointer will be updated to the character after
5620 the trailing colon. On failure, FAIL will be returned; SUCCESS
5621 otherwise. On success, *entry will be updated to point at the relevant
5622 group_reloc_table entry. */
5625 find_group_reloc_table_entry (char **str, struct group_reloc_table_entry **out)
5628 for (i = 0; i < ARRAY_SIZE (group_reloc_table); i++)
5630 int length = strlen (group_reloc_table[i].name);
5632 if (strncasecmp (group_reloc_table[i].name, *str, length) == 0
5633 && (*str)[length] == ':')
5635 *out = &group_reloc_table[i];
5636 *str += (length + 1);
5644 /* Parse a <shifter_operand> for an ARM data processing instruction
5645 (as for parse_shifter_operand) where group relocations are allowed:
5648 #<immediate>, <rotate>
5649 #:<group_reloc>:<expression>
5653 where <group_reloc> is one of the strings defined in group_reloc_table.
5654 The hashes are optional.
5656 Everything else is as for parse_shifter_operand. */
5658 static parse_operand_result
5659 parse_shifter_operand_group_reloc (char **str, int i)
5661 /* Determine if we have the sequence of characters #: or just :
5662 coming next. If we do, then we check for a group relocation.
5663 If we don't, punt the whole lot to parse_shifter_operand. */
5665 if (((*str)[0] == '#' && (*str)[1] == ':')
5666 || (*str)[0] == ':')
5668 struct group_reloc_table_entry *entry;
5670 if ((*str)[0] == '#')
5675 /* Try to parse a group relocation. Anything else is an error. */
5676 if (find_group_reloc_table_entry (str, &entry) == FAIL)
5678 inst.error = _("unknown group relocation");
5679 return PARSE_OPERAND_FAIL_NO_BACKTRACK;
5682 /* We now have the group relocation table entry corresponding to
5683 the name in the assembler source. Next, we parse the expression. */
5684 if (my_get_expression (&inst.relocs[0].exp, str, GE_NO_PREFIX))
5685 return PARSE_OPERAND_FAIL_NO_BACKTRACK;
5687 /* Record the relocation type (always the ALU variant here). */
5688 inst.relocs[0].type = (bfd_reloc_code_real_type) entry->alu_code;
5689 gas_assert (inst.relocs[0].type != 0);
5691 return PARSE_OPERAND_SUCCESS;
5694 return parse_shifter_operand (str, i) == SUCCESS
5695 ? PARSE_OPERAND_SUCCESS : PARSE_OPERAND_FAIL;
5697 /* Never reached. */
5700 /* Parse a Neon alignment expression. Information is written to
5701 inst.operands[i]. We assume the initial ':' has been skipped.
5703 align .imm = align << 8, .immisalign=1, .preind=0 */
5704 static parse_operand_result
5705 parse_neon_alignment (char **str, int i)
5710 my_get_expression (&exp, &p, GE_NO_PREFIX);
5712 if (exp.X_op != O_constant)
5714 inst.error = _("alignment must be constant");
5715 return PARSE_OPERAND_FAIL;
5718 inst.operands[i].imm = exp.X_add_number << 8;
5719 inst.operands[i].immisalign = 1;
5720 /* Alignments are not pre-indexes. */
5721 inst.operands[i].preind = 0;
5724 return PARSE_OPERAND_SUCCESS;
5727 /* Parse all forms of an ARM address expression. Information is written
5728 to inst.operands[i] and/or inst.relocs[0].
5730 Preindexed addressing (.preind=1):
5732 [Rn, #offset] .reg=Rn .relocs[0].exp=offset
5733 [Rn, +/-Rm] .reg=Rn .imm=Rm .immisreg=1 .negative=0/1
5734 [Rn, +/-Rm, shift] .reg=Rn .imm=Rm .immisreg=1 .negative=0/1
5735 .shift_kind=shift .relocs[0].exp=shift_imm
5737 These three may have a trailing ! which causes .writeback to be set also.
5739 Postindexed addressing (.postind=1, .writeback=1):
5741 [Rn], #offset .reg=Rn .relocs[0].exp=offset
5742 [Rn], +/-Rm .reg=Rn .imm=Rm .immisreg=1 .negative=0/1
5743 [Rn], +/-Rm, shift .reg=Rn .imm=Rm .immisreg=1 .negative=0/1
5744 .shift_kind=shift .relocs[0].exp=shift_imm
5746 Unindexed addressing (.preind=0, .postind=0):
5748 [Rn], {option} .reg=Rn .imm=option .immisreg=0
5752 [Rn]{!} shorthand for [Rn,#0]{!}
5753 =immediate .isreg=0 .relocs[0].exp=immediate
5754 label .reg=PC .relocs[0].pc_rel=1 .relocs[0].exp=label
5756 It is the caller's responsibility to check for addressing modes not
5757 supported by the instruction, and to set inst.relocs[0].type. */
5759 static parse_operand_result
5760 parse_address_main (char **str, int i, int group_relocations,
5761 group_reloc_type group_type)
5766 if (skip_past_char (&p, '[') == FAIL)
5768 if (skip_past_char (&p, '=') == FAIL)
5770 /* Bare address - translate to PC-relative offset. */
5771 inst.relocs[0].pc_rel = 1;
5772 inst.operands[i].reg = REG_PC;
5773 inst.operands[i].isreg = 1;
5774 inst.operands[i].preind = 1;
5776 if (my_get_expression (&inst.relocs[0].exp, &p, GE_OPT_PREFIX_BIG))
5777 return PARSE_OPERAND_FAIL;
5779 else if (parse_big_immediate (&p, i, &inst.relocs[0].exp,
5780 /*allow_symbol_p=*/TRUE))
5781 return PARSE_OPERAND_FAIL;
5784 return PARSE_OPERAND_SUCCESS;
5787 /* PR gas/14887: Allow for whitespace after the opening bracket. */
5788 skip_whitespace (p);
5790 if (group_type == GROUP_MVE)
5792 enum arm_reg_type rtype = REG_TYPE_MQ;
5793 struct neon_type_el et;
5794 if ((reg = arm_typed_reg_parse (&p, rtype, &rtype, &et)) != FAIL)
5796 inst.operands[i].isquad = 1;
5798 else if ((reg = arm_reg_parse (&p, REG_TYPE_RN)) == FAIL)
5800 inst.error = BAD_ADDR_MODE;
5801 return PARSE_OPERAND_FAIL;
5804 else if ((reg = arm_reg_parse (&p, REG_TYPE_RN)) == FAIL)
5806 if (group_type == GROUP_MVE)
5807 inst.error = BAD_ADDR_MODE;
5809 inst.error = _(reg_expected_msgs[REG_TYPE_RN]);
5810 return PARSE_OPERAND_FAIL;
5812 inst.operands[i].reg = reg;
5813 inst.operands[i].isreg = 1;
5815 if (skip_past_comma (&p) == SUCCESS)
5817 inst.operands[i].preind = 1;
5820 else if (*p == '-') p++, inst.operands[i].negative = 1;
5822 enum arm_reg_type rtype = REG_TYPE_MQ;
5823 struct neon_type_el et;
5824 if (group_type == GROUP_MVE
5825 && (reg = arm_typed_reg_parse (&p, rtype, &rtype, &et)) != FAIL)
5827 inst.operands[i].immisreg = 2;
5828 inst.operands[i].imm = reg;
5830 if (skip_past_comma (&p) == SUCCESS)
5832 if (parse_shift (&p, i, SHIFT_UXTW_IMMEDIATE) == SUCCESS)
5834 inst.operands[i].imm |= inst.relocs[0].exp.X_add_number << 5;
5835 inst.relocs[0].exp.X_add_number = 0;
5838 return PARSE_OPERAND_FAIL;
5841 else if ((reg = arm_reg_parse (&p, REG_TYPE_RN)) != FAIL)
5843 inst.operands[i].imm = reg;
5844 inst.operands[i].immisreg = 1;
5846 if (skip_past_comma (&p) == SUCCESS)
5847 if (parse_shift (&p, i, SHIFT_IMMEDIATE) == FAIL)
5848 return PARSE_OPERAND_FAIL;
5850 else if (skip_past_char (&p, ':') == SUCCESS)
5852 /* FIXME: '@' should be used here, but it's filtered out by generic
5853 code before we get to see it here. This may be subject to
5855 parse_operand_result result = parse_neon_alignment (&p, i);
5857 if (result != PARSE_OPERAND_SUCCESS)
5862 if (inst.operands[i].negative)
5864 inst.operands[i].negative = 0;
5868 if (group_relocations
5869 && ((*p == '#' && *(p + 1) == ':') || *p == ':'))
5871 struct group_reloc_table_entry *entry;
5873 /* Skip over the #: or : sequence. */
5879 /* Try to parse a group relocation. Anything else is an
5881 if (find_group_reloc_table_entry (&p, &entry) == FAIL)
5883 inst.error = _("unknown group relocation");
5884 return PARSE_OPERAND_FAIL_NO_BACKTRACK;
5887 /* We now have the group relocation table entry corresponding to
5888 the name in the assembler source. Next, we parse the
5890 if (my_get_expression (&inst.relocs[0].exp, &p, GE_NO_PREFIX))
5891 return PARSE_OPERAND_FAIL_NO_BACKTRACK;
5893 /* Record the relocation type. */
5898 = (bfd_reloc_code_real_type) entry->ldr_code;
5903 = (bfd_reloc_code_real_type) entry->ldrs_code;
5908 = (bfd_reloc_code_real_type) entry->ldc_code;
5915 if (inst.relocs[0].type == 0)
5917 inst.error = _("this group relocation is not allowed on this instruction");
5918 return PARSE_OPERAND_FAIL_NO_BACKTRACK;
5925 if (my_get_expression (&inst.relocs[0].exp, &p, GE_IMM_PREFIX))
5926 return PARSE_OPERAND_FAIL;
5927 /* If the offset is 0, find out if it's a +0 or -0. */
5928 if (inst.relocs[0].exp.X_op == O_constant
5929 && inst.relocs[0].exp.X_add_number == 0)
5931 skip_whitespace (q);
5935 skip_whitespace (q);
5938 inst.operands[i].negative = 1;
5943 else if (skip_past_char (&p, ':') == SUCCESS)
5945 /* FIXME: '@' should be used here, but it's filtered out by generic code
5946 before we get to see it here. This may be subject to change. */
5947 parse_operand_result result = parse_neon_alignment (&p, i);
5949 if (result != PARSE_OPERAND_SUCCESS)
5953 if (skip_past_char (&p, ']') == FAIL)
5955 inst.error = _("']' expected");
5956 return PARSE_OPERAND_FAIL;
5959 if (skip_past_char (&p, '!') == SUCCESS)
5960 inst.operands[i].writeback = 1;
5962 else if (skip_past_comma (&p) == SUCCESS)
5964 if (skip_past_char (&p, '{') == SUCCESS)
5966 /* [Rn], {expr} - unindexed, with option */
5967 if (parse_immediate (&p, &inst.operands[i].imm,
5968 0, 255, TRUE) == FAIL)
5969 return PARSE_OPERAND_FAIL;
5971 if (skip_past_char (&p, '}') == FAIL)
5973 inst.error = _("'}' expected at end of 'option' field");
5974 return PARSE_OPERAND_FAIL;
5976 if (inst.operands[i].preind)
5978 inst.error = _("cannot combine index with option");
5979 return PARSE_OPERAND_FAIL;
5982 return PARSE_OPERAND_SUCCESS;
5986 inst.operands[i].postind = 1;
5987 inst.operands[i].writeback = 1;
5989 if (inst.operands[i].preind)
5991 inst.error = _("cannot combine pre- and post-indexing");
5992 return PARSE_OPERAND_FAIL;
5996 else if (*p == '-') p++, inst.operands[i].negative = 1;
5998 enum arm_reg_type rtype = REG_TYPE_MQ;
5999 struct neon_type_el et;
6000 if (group_type == GROUP_MVE
6001 && (reg = arm_typed_reg_parse (&p, rtype, &rtype, &et)) != FAIL)
6003 inst.operands[i].immisreg = 2;
6004 inst.operands[i].imm = reg;
6006 else if ((reg = arm_reg_parse (&p, REG_TYPE_RN)) != FAIL)
6008 /* We might be using the immediate for alignment already. If we
6009 are, OR the register number into the low-order bits. */
6010 if (inst.operands[i].immisalign)
6011 inst.operands[i].imm |= reg;
6013 inst.operands[i].imm = reg;
6014 inst.operands[i].immisreg = 1;
6016 if (skip_past_comma (&p) == SUCCESS)
6017 if (parse_shift (&p, i, SHIFT_IMMEDIATE) == FAIL)
6018 return PARSE_OPERAND_FAIL;
6024 if (inst.operands[i].negative)
6026 inst.operands[i].negative = 0;
6029 if (my_get_expression (&inst.relocs[0].exp, &p, GE_IMM_PREFIX))
6030 return PARSE_OPERAND_FAIL;
6031 /* If the offset is 0, find out if it's a +0 or -0. */
6032 if (inst.relocs[0].exp.X_op == O_constant
6033 && inst.relocs[0].exp.X_add_number == 0)
6035 skip_whitespace (q);
6039 skip_whitespace (q);
6042 inst.operands[i].negative = 1;
6048 /* If at this point neither .preind nor .postind is set, we have a
6049 bare [Rn]{!}, which is shorthand for [Rn,#0]{!}. */
6050 if (inst.operands[i].preind == 0 && inst.operands[i].postind == 0)
6052 inst.operands[i].preind = 1;
6053 inst.relocs[0].exp.X_op = O_constant;
6054 inst.relocs[0].exp.X_add_number = 0;
6057 return PARSE_OPERAND_SUCCESS;
6061 parse_address (char **str, int i)
6063 return parse_address_main (str, i, 0, GROUP_LDR) == PARSE_OPERAND_SUCCESS
6067 static parse_operand_result
6068 parse_address_group_reloc (char **str, int i, group_reloc_type type)
6070 return parse_address_main (str, i, 1, type);
6073 /* Parse an operand for a MOVW or MOVT instruction. */
6075 parse_half (char **str)
6080 skip_past_char (&p, '#');
6081 if (strncasecmp (p, ":lower16:", 9) == 0)
6082 inst.relocs[0].type = BFD_RELOC_ARM_MOVW;
6083 else if (strncasecmp (p, ":upper16:", 9) == 0)
6084 inst.relocs[0].type = BFD_RELOC_ARM_MOVT;
6086 if (inst.relocs[0].type != BFD_RELOC_UNUSED)
6089 skip_whitespace (p);
6092 if (my_get_expression (&inst.relocs[0].exp, &p, GE_NO_PREFIX))
6095 if (inst.relocs[0].type == BFD_RELOC_UNUSED)
6097 if (inst.relocs[0].exp.X_op != O_constant)
6099 inst.error = _("constant expression expected");
6102 if (inst.relocs[0].exp.X_add_number < 0
6103 || inst.relocs[0].exp.X_add_number > 0xffff)
6105 inst.error = _("immediate value out of range");
6113 /* Miscellaneous. */
6115 /* Parse a PSR flag operand. The value returned is FAIL on syntax error,
6116 or a bitmask suitable to be or-ed into the ARM msr instruction. */
6118 parse_psr (char **str, bfd_boolean lhs)
6121 unsigned long psr_field;
6122 const struct asm_psr *psr;
6124 bfd_boolean is_apsr = FALSE;
6125 bfd_boolean m_profile = ARM_CPU_HAS_FEATURE (selected_cpu, arm_ext_m);
6127 /* PR gas/12698: If the user has specified -march=all then m_profile will
6128 be TRUE, but we want to ignore it in this case as we are building for any
6129 CPU type, including non-m variants. */
6130 if (ARM_FEATURE_CORE_EQUAL (selected_cpu, arm_arch_any))
6133 /* CPSR's and SPSR's can now be lowercase. This is just a convenience
6134 feature for ease of use and backwards compatibility. */
6136 if (strncasecmp (p, "SPSR", 4) == 0)
6139 goto unsupported_psr;
6141 psr_field = SPSR_BIT;
6143 else if (strncasecmp (p, "CPSR", 4) == 0)
6146 goto unsupported_psr;
6150 else if (strncasecmp (p, "APSR", 4) == 0)
6152 /* APSR[_<bits>] can be used as a synonym for CPSR[_<flags>] on ARMv7-A
6153 and ARMv7-R architecture CPUs. */
6162 while (ISALNUM (*p) || *p == '_');
6164 if (strncasecmp (start, "iapsr", 5) == 0
6165 || strncasecmp (start, "eapsr", 5) == 0
6166 || strncasecmp (start, "xpsr", 4) == 0
6167 || strncasecmp (start, "psr", 3) == 0)
6168 p = start + strcspn (start, "rR") + 1;
6170 psr = (const struct asm_psr *) hash_find_n (arm_v7m_psr_hsh, start,
6176 /* If APSR is being written, a bitfield may be specified. Note that
6177 APSR itself is handled above. */
6178 if (psr->field <= 3)
6180 psr_field = psr->field;
6186 /* M-profile MSR instructions have the mask field set to "10", except
6187 *PSR variants which modify APSR, which may use a different mask (and
6188 have been handled already). Do that by setting the PSR_f field
6190 return psr->field | (lhs ? PSR_f : 0);
6193 goto unsupported_psr;
6199 /* A suffix follows. */
6205 while (ISALNUM (*p) || *p == '_');
6209 /* APSR uses a notation for bits, rather than fields. */
6210 unsigned int nzcvq_bits = 0;
6211 unsigned int g_bit = 0;
6214 for (bit = start; bit != p; bit++)
6216 switch (TOLOWER (*bit))
6219 nzcvq_bits |= (nzcvq_bits & 0x01) ? 0x20 : 0x01;
6223 nzcvq_bits |= (nzcvq_bits & 0x02) ? 0x20 : 0x02;
6227 nzcvq_bits |= (nzcvq_bits & 0x04) ? 0x20 : 0x04;
6231 nzcvq_bits |= (nzcvq_bits & 0x08) ? 0x20 : 0x08;
6235 nzcvq_bits |= (nzcvq_bits & 0x10) ? 0x20 : 0x10;
6239 g_bit |= (g_bit & 0x1) ? 0x2 : 0x1;
6243 inst.error = _("unexpected bit specified after APSR");
6248 if (nzcvq_bits == 0x1f)
6253 if (!ARM_CPU_HAS_FEATURE (selected_cpu, arm_ext_v6_dsp))
6255 inst.error = _("selected processor does not "
6256 "support DSP extension");
6263 if ((nzcvq_bits & 0x20) != 0
6264 || (nzcvq_bits != 0x1f && nzcvq_bits != 0)
6265 || (g_bit & 0x2) != 0)
6267 inst.error = _("bad bitmask specified after APSR");
6273 psr = (const struct asm_psr *) hash_find_n (arm_psr_hsh, start,
6278 psr_field |= psr->field;
6284 goto error; /* Garbage after "[CS]PSR". */
6286 /* Unadorned APSR is equivalent to APSR_nzcvq/CPSR_f (for writes). This
6287 is deprecated, but allow it anyway. */
6291 as_tsktsk (_("writing to APSR without specifying a bitmask is "
6294 else if (!m_profile)
6295 /* These bits are never right for M-profile devices: don't set them
6296 (only code paths which read/write APSR reach here). */
6297 psr_field |= (PSR_c | PSR_f);
6303 inst.error = _("selected processor does not support requested special "
6304 "purpose register");
6308 inst.error = _("flag for {c}psr instruction expected");
6313 parse_sys_vldr_vstr (char **str)
6322 {"FPSCR", 0x1, 0x0},
6323 {"FPSCR_nzcvqc", 0x2, 0x0},
6326 {"FPCXTNS", 0x6, 0x1},
6327 {"FPCXTS", 0x7, 0x1}
6329 char *op_end = strchr (*str, ',');
6330 size_t op_strlen = op_end - *str;
6332 for (i = 0; i < sizeof (sysregs) / sizeof (sysregs[0]); i++)
6334 if (!strncmp (*str, sysregs[i].name, op_strlen))
6336 val = sysregs[i].regl | (sysregs[i].regh << 3);
6345 /* Parse the flags argument to CPSI[ED]. Returns FAIL on error, or a
6346 value suitable for splatting into the AIF field of the instruction. */
6349 parse_cps_flags (char **str)
6358 case '\0': case ',':
6361 case 'a': case 'A': saw_a_flag = 1; val |= 0x4; break;
6362 case 'i': case 'I': saw_a_flag = 1; val |= 0x2; break;
6363 case 'f': case 'F': saw_a_flag = 1; val |= 0x1; break;
6366 inst.error = _("unrecognized CPS flag");
6371 if (saw_a_flag == 0)
6373 inst.error = _("missing CPS flags");
6381 /* Parse an endian specifier ("BE" or "LE", case insensitive);
6382 returns 0 for big-endian, 1 for little-endian, FAIL for an error. */
6385 parse_endian_specifier (char **str)
6390 if (strncasecmp (s, "BE", 2))
6392 else if (strncasecmp (s, "LE", 2))
6396 inst.error = _("valid endian specifiers are be or le");
6400 if (ISALNUM (s[2]) || s[2] == '_')
6402 inst.error = _("valid endian specifiers are be or le");
6407 return little_endian;
6410 /* Parse a rotation specifier: ROR #0, #8, #16, #24. *val receives a
6411 value suitable for poking into the rotate field of an sxt or sxta
6412 instruction, or FAIL on error. */
6415 parse_ror (char **str)
6420 if (strncasecmp (s, "ROR", 3) == 0)
6424 inst.error = _("missing rotation field after comma");
6428 if (parse_immediate (&s, &rot, 0, 24, FALSE) == FAIL)
6433 case 0: *str = s; return 0x0;
6434 case 8: *str = s; return 0x1;
6435 case 16: *str = s; return 0x2;
6436 case 24: *str = s; return 0x3;
6439 inst.error = _("rotation can only be 0, 8, 16, or 24");
6444 /* Parse a conditional code (from conds[] below). The value returned is in the
6445 range 0 .. 14, or FAIL. */
6447 parse_cond (char **str)
6450 const struct asm_cond *c;
6452 /* Condition codes are always 2 characters, so matching up to
6453 3 characters is sufficient. */
6458 while (ISALPHA (*q) && n < 3)
6460 cond[n] = TOLOWER (*q);
6465 c = (const struct asm_cond *) hash_find_n (arm_cond_hsh, cond, n);
6468 inst.error = _("condition required");
6476 /* Parse an option for a barrier instruction. Returns the encoding for the
6479 parse_barrier (char **str)
6482 const struct asm_barrier_opt *o;
6485 while (ISALPHA (*q))
6488 o = (const struct asm_barrier_opt *) hash_find_n (arm_barrier_opt_hsh, p,
6493 if (!mark_feature_used (&o->arch))
6500 /* Parse the operands of a table branch instruction. Similar to a memory
6503 parse_tb (char **str)
6508 if (skip_past_char (&p, '[') == FAIL)
6510 inst.error = _("'[' expected");
6514 if ((reg = arm_reg_parse (&p, REG_TYPE_RN)) == FAIL)
6516 inst.error = _(reg_expected_msgs[REG_TYPE_RN]);
6519 inst.operands[0].reg = reg;
6521 if (skip_past_comma (&p) == FAIL)
6523 inst.error = _("',' expected");
6527 if ((reg = arm_reg_parse (&p, REG_TYPE_RN)) == FAIL)
6529 inst.error = _(reg_expected_msgs[REG_TYPE_RN]);
6532 inst.operands[0].imm = reg;
6534 if (skip_past_comma (&p) == SUCCESS)
6536 if (parse_shift (&p, 0, SHIFT_LSL_IMMEDIATE) == FAIL)
6538 if (inst.relocs[0].exp.X_add_number != 1)
6540 inst.error = _("invalid shift");
6543 inst.operands[0].shifted = 1;
6546 if (skip_past_char (&p, ']') == FAIL)
6548 inst.error = _("']' expected");
6555 /* Parse the operands of a Neon VMOV instruction. See do_neon_mov for more
6556 information on the types the operands can take and how they are encoded.
6557 Up to four operands may be read; this function handles setting the
6558 ".present" field for each read operand itself.
6559 Updates STR and WHICH_OPERAND if parsing is successful and returns SUCCESS,
6560 else returns FAIL. */
6563 parse_neon_mov (char **str, int *which_operand)
6565 int i = *which_operand, val;
6566 enum arm_reg_type rtype;
6568 struct neon_type_el optype;
6570 if ((val = parse_scalar (&ptr, 8, &optype, REG_TYPE_MQ)) != FAIL)
6572 /* Cases 17 or 19. */
6573 inst.operands[i].reg = val;
6574 inst.operands[i].isvec = 1;
6575 inst.operands[i].isscalar = 2;
6576 inst.operands[i].vectype = optype;
6577 inst.operands[i++].present = 1;
6579 if (skip_past_comma (&ptr) == FAIL)
6582 if ((val = arm_reg_parse (&ptr, REG_TYPE_RN)) != FAIL)
6584 /* Case 17: VMOV<c>.<dt> <Qd[idx]>, <Rt> */
6585 inst.operands[i].reg = val;
6586 inst.operands[i].isreg = 1;
6587 inst.operands[i].present = 1;
6589 else if ((val = parse_scalar (&ptr, 8, &optype, REG_TYPE_MQ)) != FAIL)
6591 /* Case 19: VMOV<c> <Qd[idx]>, <Qd[idx2]>, <Rt>, <Rt2> */
6592 inst.operands[i].reg = val;
6593 inst.operands[i].isvec = 1;
6594 inst.operands[i].isscalar = 2;
6595 inst.operands[i].vectype = optype;
6596 inst.operands[i++].present = 1;
6598 if (skip_past_comma (&ptr) == FAIL)
6601 if ((val = arm_reg_parse (&ptr, REG_TYPE_RN)) == FAIL)
6604 inst.operands[i].reg = val;
6605 inst.operands[i].isreg = 1;
6606 inst.operands[i++].present = 1;
6608 if (skip_past_comma (&ptr) == FAIL)
6611 if ((val = arm_reg_parse (&ptr, REG_TYPE_RN)) == FAIL)
6614 inst.operands[i].reg = val;
6615 inst.operands[i].isreg = 1;
6616 inst.operands[i].present = 1;
6620 first_error (_("expected ARM or MVE vector register"));
6624 else if ((val = parse_scalar (&ptr, 8, &optype, REG_TYPE_VFD)) != FAIL)
6626 /* Case 4: VMOV<c><q>.<size> <Dn[x]>, <Rd>. */
6627 inst.operands[i].reg = val;
6628 inst.operands[i].isscalar = 1;
6629 inst.operands[i].vectype = optype;
6630 inst.operands[i++].present = 1;
6632 if (skip_past_comma (&ptr) == FAIL)
6635 if ((val = arm_reg_parse (&ptr, REG_TYPE_RN)) == FAIL)
6638 inst.operands[i].reg = val;
6639 inst.operands[i].isreg = 1;
6640 inst.operands[i].present = 1;
6642 else if (((val = arm_typed_reg_parse (&ptr, REG_TYPE_NSDQ, &rtype, &optype))
6644 || ((val = arm_typed_reg_parse (&ptr, REG_TYPE_MQ, &rtype, &optype))
6647 /* Cases 0, 1, 2, 3, 5 (D only). */
6648 if (skip_past_comma (&ptr) == FAIL)
6651 inst.operands[i].reg = val;
6652 inst.operands[i].isreg = 1;
6653 inst.operands[i].isquad = (rtype == REG_TYPE_NQ);
6654 inst.operands[i].issingle = (rtype == REG_TYPE_VFS);
6655 inst.operands[i].isvec = 1;
6656 inst.operands[i].vectype = optype;
6657 inst.operands[i++].present = 1;
6659 if ((val = arm_reg_parse (&ptr, REG_TYPE_RN)) != FAIL)
6661 /* Case 5: VMOV<c><q> <Dm>, <Rd>, <Rn>.
6662 Case 13: VMOV <Sd>, <Rm> */
6663 inst.operands[i].reg = val;
6664 inst.operands[i].isreg = 1;
6665 inst.operands[i].present = 1;
6667 if (rtype == REG_TYPE_NQ)
6669 first_error (_("can't use Neon quad register here"));
6672 else if (rtype != REG_TYPE_VFS)
6675 if (skip_past_comma (&ptr) == FAIL)
6677 if ((val = arm_reg_parse (&ptr, REG_TYPE_RN)) == FAIL)
6679 inst.operands[i].reg = val;
6680 inst.operands[i].isreg = 1;
6681 inst.operands[i].present = 1;
6684 else if ((val = arm_typed_reg_parse (&ptr, REG_TYPE_NSDQ, &rtype,
6687 /* Case 0: VMOV<c><q> <Qd>, <Qm>
6688 Case 1: VMOV<c><q> <Dd>, <Dm>
6689 Case 8: VMOV.F32 <Sd>, <Sm>
6690 Case 15: VMOV <Sd>, <Se>, <Rn>, <Rm> */
6692 inst.operands[i].reg = val;
6693 inst.operands[i].isreg = 1;
6694 inst.operands[i].isquad = (rtype == REG_TYPE_NQ);
6695 inst.operands[i].issingle = (rtype == REG_TYPE_VFS);
6696 inst.operands[i].isvec = 1;
6697 inst.operands[i].vectype = optype;
6698 inst.operands[i].present = 1;
6700 if (skip_past_comma (&ptr) == SUCCESS)
6705 if ((val = arm_reg_parse (&ptr, REG_TYPE_RN)) == FAIL)
6708 inst.operands[i].reg = val;
6709 inst.operands[i].isreg = 1;
6710 inst.operands[i++].present = 1;
6712 if (skip_past_comma (&ptr) == FAIL)
6715 if ((val = arm_reg_parse (&ptr, REG_TYPE_RN)) == FAIL)
6718 inst.operands[i].reg = val;
6719 inst.operands[i].isreg = 1;
6720 inst.operands[i].present = 1;
6723 else if (parse_qfloat_immediate (&ptr, &inst.operands[i].imm) == SUCCESS)
6724 /* Case 2: VMOV<c><q>.<dt> <Qd>, #<float-imm>
6725 Case 3: VMOV<c><q>.<dt> <Dd>, #<float-imm>
6726 Case 10: VMOV.F32 <Sd>, #<imm>
6727 Case 11: VMOV.F64 <Dd>, #<imm> */
6728 inst.operands[i].immisfloat = 1;
6729 else if (parse_big_immediate (&ptr, i, NULL, /*allow_symbol_p=*/FALSE)
6731 /* Case 2: VMOV<c><q>.<dt> <Qd>, #<imm>
6732 Case 3: VMOV<c><q>.<dt> <Dd>, #<imm> */
6736 first_error (_("expected <Rm> or <Dm> or <Qm> operand"));
6740 else if ((val = arm_reg_parse (&ptr, REG_TYPE_RN)) != FAIL)
6742 /* Cases 6, 7, 16, 18. */
6743 inst.operands[i].reg = val;
6744 inst.operands[i].isreg = 1;
6745 inst.operands[i++].present = 1;
6747 if (skip_past_comma (&ptr) == FAIL)
6750 if ((val = parse_scalar (&ptr, 8, &optype, REG_TYPE_MQ)) != FAIL)
6752 /* Case 18: VMOV<c>.<dt> <Rt>, <Qn[idx]> */
6753 inst.operands[i].reg = val;
6754 inst.operands[i].isscalar = 2;
6755 inst.operands[i].present = 1;
6756 inst.operands[i].vectype = optype;
6758 else if ((val = parse_scalar (&ptr, 8, &optype, REG_TYPE_VFD)) != FAIL)
6760 /* Case 6: VMOV<c><q>.<dt> <Rd>, <Dn[x]> */
6761 inst.operands[i].reg = val;
6762 inst.operands[i].isscalar = 1;
6763 inst.operands[i].present = 1;
6764 inst.operands[i].vectype = optype;
6766 else if ((val = arm_reg_parse (&ptr, REG_TYPE_RN)) != FAIL)
6768 inst.operands[i].reg = val;
6769 inst.operands[i].isreg = 1;
6770 inst.operands[i++].present = 1;
6772 if (skip_past_comma (&ptr) == FAIL)
6775 if ((val = arm_typed_reg_parse (&ptr, REG_TYPE_VFSD, &rtype, &optype))
6778 /* Case 7: VMOV<c><q> <Rd>, <Rn>, <Dm> */
6780 inst.operands[i].reg = val;
6781 inst.operands[i].isreg = 1;
6782 inst.operands[i].isvec = 1;
6783 inst.operands[i].issingle = (rtype == REG_TYPE_VFS);
6784 inst.operands[i].vectype = optype;
6785 inst.operands[i].present = 1;
6787 if (rtype == REG_TYPE_VFS)
6791 if (skip_past_comma (&ptr) == FAIL)
6793 if ((val = arm_typed_reg_parse (&ptr, REG_TYPE_VFS, NULL,
6796 first_error (_(reg_expected_msgs[REG_TYPE_VFS]));
6799 inst.operands[i].reg = val;
6800 inst.operands[i].isreg = 1;
6801 inst.operands[i].isvec = 1;
6802 inst.operands[i].issingle = 1;
6803 inst.operands[i].vectype = optype;
6804 inst.operands[i].present = 1;
6809 if ((val = parse_scalar (&ptr, 8, &optype, REG_TYPE_MQ))
6812 /* Case 16: VMOV<c> <Rt>, <Rt2>, <Qd[idx]>, <Qd[idx2]> */
6813 inst.operands[i].reg = val;
6814 inst.operands[i].isvec = 1;
6815 inst.operands[i].isscalar = 2;
6816 inst.operands[i].vectype = optype;
6817 inst.operands[i++].present = 1;
6819 if (skip_past_comma (&ptr) == FAIL)
6822 if ((val = parse_scalar (&ptr, 8, &optype, REG_TYPE_MQ))
6825 first_error (_(reg_expected_msgs[REG_TYPE_MQ]));
6828 inst.operands[i].reg = val;
6829 inst.operands[i].isvec = 1;
6830 inst.operands[i].isscalar = 2;
6831 inst.operands[i].vectype = optype;
6832 inst.operands[i].present = 1;
6836 first_error (_("VFP single, double or MVE vector register"
6842 else if ((val = arm_typed_reg_parse (&ptr, REG_TYPE_VFS, NULL, &optype))
6846 inst.operands[i].reg = val;
6847 inst.operands[i].isreg = 1;
6848 inst.operands[i].isvec = 1;
6849 inst.operands[i].issingle = 1;
6850 inst.operands[i].vectype = optype;
6851 inst.operands[i].present = 1;
6856 first_error (_("parse error"));
6860 /* Successfully parsed the operands. Update args. */
6866 first_error (_("expected comma"));
6870 first_error (_(reg_expected_msgs[REG_TYPE_RN]));
6874 /* Use this macro when the operand constraints are different
6875 for ARM and THUMB (e.g. ldrd). */
6876 #define MIX_ARM_THUMB_OPERANDS(arm_operand, thumb_operand) \
6877 ((arm_operand) | ((thumb_operand) << 16))
6879 /* Matcher codes for parse_operands. */
6880 enum operand_parse_code
6882 OP_stop, /* end of line */
6884 OP_RR, /* ARM register */
6885 OP_RRnpc, /* ARM register, not r15 */
6886 OP_RRnpcsp, /* ARM register, neither r15 nor r13 (a.k.a. 'BadReg') */
6887 OP_RRnpcb, /* ARM register, not r15, in square brackets */
6888 OP_RRnpctw, /* ARM register, not r15 in Thumb-state or with writeback,
6889 optional trailing ! */
6890 OP_RRw, /* ARM register, not r15, optional trailing ! */
6891 OP_RCP, /* Coprocessor number */
6892 OP_RCN, /* Coprocessor register */
6893 OP_RF, /* FPA register */
6894 OP_RVS, /* VFP single precision register */
6895 OP_RVD, /* VFP double precision register (0..15) */
6896 OP_RND, /* Neon double precision register (0..31) */
6897 OP_RNDMQ, /* Neon double precision (0..31) or MVE vector register. */
6898 OP_RNDMQR, /* Neon double precision (0..31), MVE vector or ARM register.
6900 OP_RNQ, /* Neon quad precision register */
6901 OP_RNQMQ, /* Neon quad or MVE vector register. */
6902 OP_RVSD, /* VFP single or double precision register */
6903 OP_RVSD_COND, /* VFP single, double precision register or condition code. */
6904 OP_RVSDMQ, /* VFP single, double precision or MVE vector register. */
6905 OP_RNSD, /* Neon single or double precision register */
6906 OP_RNDQ, /* Neon double or quad precision register */
6907 OP_RNDQMQ, /* Neon double, quad or MVE vector register. */
6908 OP_RNDQMQR, /* Neon double, quad, MVE vector or ARM register. */
6909 OP_RNSDQ, /* Neon single, double or quad precision register */
6910 OP_RNSC, /* Neon scalar D[X] */
6911 OP_RVC, /* VFP control register */
6912 OP_RMF, /* Maverick F register */
6913 OP_RMD, /* Maverick D register */
6914 OP_RMFX, /* Maverick FX register */
6915 OP_RMDX, /* Maverick DX register */
6916 OP_RMAX, /* Maverick AX register */
6917 OP_RMDS, /* Maverick DSPSC register */
6918 OP_RIWR, /* iWMMXt wR register */
6919 OP_RIWC, /* iWMMXt wC register */
6920 OP_RIWG, /* iWMMXt wCG register */
6921 OP_RXA, /* XScale accumulator register */
6923 OP_RNSDQMQ, /* Neon single, double or quad register or MVE vector register
6925 OP_RNSDQMQR, /* Neon single, double or quad register, MVE vector register or
6927 OP_RMQ, /* MVE vector register. */
6928 OP_RMQRZ, /* MVE vector or ARM register including ZR. */
6929 OP_RMQRR, /* MVE vector or ARM register. */
6931 /* New operands for Armv8.1-M Mainline. */
6932 OP_LR, /* ARM LR register */
6933 OP_RRe, /* ARM register, only even numbered. */
6934 OP_RRo, /* ARM register, only odd numbered, not r13 or r15. */
6935 OP_RRnpcsp_I32, /* ARM register (no BadReg) or literal 1 .. 32 */
6936 OP_RR_ZR, /* ARM register or ZR but no PC */
6938 OP_REGLST, /* ARM register list */
6939 OP_CLRMLST, /* CLRM register list */
6940 OP_VRSLST, /* VFP single-precision register list */
6941 OP_VRDLST, /* VFP double-precision register list */
6942 OP_VRSDLST, /* VFP single or double-precision register list (& quad) */
6943 OP_NRDLST, /* Neon double-precision register list (d0-d31, qN aliases) */
6944 OP_NSTRLST, /* Neon element/structure list */
6945 OP_VRSDVLST, /* VFP single or double-precision register list and VPR */
6946 OP_MSTRLST2, /* MVE vector list with two elements. */
6947 OP_MSTRLST4, /* MVE vector list with four elements. */
6949 OP_RNDQ_I0, /* Neon D or Q reg, or immediate zero. */
6950 OP_RVSD_I0, /* VFP S or D reg, or immediate zero. */
6951 OP_RSVD_FI0, /* VFP S or D reg, or floating point immediate zero. */
6952 OP_RSVDMQ_FI0, /* VFP S, D, MVE vector register or floating point immediate
6954 OP_RR_RNSC, /* ARM reg or Neon scalar. */
6955 OP_RNSD_RNSC, /* Neon S or D reg, or Neon scalar. */
6956 OP_RNSDQ_RNSC, /* Vector S, D or Q reg, or Neon scalar. */
6957 OP_RNSDQ_RNSC_MQ, /* Vector S, D or Q reg, Neon scalar or MVE vector register.
6959 OP_RNSDQ_RNSC_MQ_RR, /* Vector S, D or Q reg, or MVE vector reg , or Neon
6960 scalar, or ARM register. */
6961 OP_RNDQ_RNSC, /* Neon D or Q reg, or Neon scalar. */
6962 OP_RNDQ_RNSC_RR, /* Neon D or Q reg, Neon scalar, or ARM register. */
6963 OP_RNDQMQ_RNSC_RR, /* Neon D or Q reg, Neon scalar, MVE vector or ARM
6965 OP_RNDQMQ_RNSC, /* Neon D, Q or MVE vector reg, or Neon scalar. */
6966 OP_RND_RNSC, /* Neon D reg, or Neon scalar. */
6967 OP_VMOV, /* Neon VMOV operands. */
6968 OP_RNDQ_Ibig, /* Neon D or Q reg, or big immediate for logic and VMVN. */
6969 /* Neon D, Q or MVE vector register, or big immediate for logic and VMVN. */
6971 OP_RNDQ_I63b, /* Neon D or Q reg, or immediate for shift. */
6972 OP_RNDQMQ_I63b_RR, /* Neon D or Q reg, immediate for shift, MVE vector or
6974 OP_RIWR_I32z, /* iWMMXt wR register, or immediate 0 .. 32 for iWMMXt2. */
6975 OP_VLDR, /* VLDR operand. */
6977 OP_I0, /* immediate zero */
6978 OP_I7, /* immediate value 0 .. 7 */
6979 OP_I15, /* 0 .. 15 */
6980 OP_I16, /* 1 .. 16 */
6981 OP_I16z, /* 0 .. 16 */
6982 OP_I31, /* 0 .. 31 */
6983 OP_I31w, /* 0 .. 31, optional trailing ! */
6984 OP_I32, /* 1 .. 32 */
6985 OP_I32z, /* 0 .. 32 */
6986 OP_I63, /* 0 .. 63 */
6987 OP_I63s, /* -64 .. 63 */
6988 OP_I64, /* 1 .. 64 */
6989 OP_I64z, /* 0 .. 64 */
6990 OP_I255, /* 0 .. 255 */
6992 OP_I4b, /* immediate, prefix optional, 1 .. 4 */
6993 OP_I7b, /* 0 .. 7 */
6994 OP_I15b, /* 0 .. 15 */
6995 OP_I31b, /* 0 .. 31 */
6997 OP_SH, /* shifter operand */
6998 OP_SHG, /* shifter operand with possible group relocation */
6999 OP_ADDR, /* Memory address expression (any mode) */
7000 OP_ADDRMVE, /* Memory address expression for MVE's VSTR/VLDR. */
7001 OP_ADDRGLDR, /* Mem addr expr (any mode) with possible LDR group reloc */
7002 OP_ADDRGLDRS, /* Mem addr expr (any mode) with possible LDRS group reloc */
7003 OP_ADDRGLDC, /* Mem addr expr (any mode) with possible LDC group reloc */
7004 OP_EXP, /* arbitrary expression */
7005 OP_EXPi, /* same, with optional immediate prefix */
7006 OP_EXPr, /* same, with optional relocation suffix */
7007 OP_EXPs, /* same, with optional non-first operand relocation suffix */
7008 OP_HALF, /* 0 .. 65535 or low/high reloc. */
7009 OP_IROT1, /* VCADD rotate immediate: 90, 270. */
7010 OP_IROT2, /* VCMLA rotate immediate: 0, 90, 180, 270. */
7012 OP_CPSF, /* CPS flags */
7013 OP_ENDI, /* Endianness specifier */
7014 OP_wPSR, /* CPSR/SPSR/APSR mask for msr (writing). */
7015 OP_rPSR, /* CPSR/SPSR/APSR mask for msr (reading). */
7016 OP_COND, /* conditional code */
7017 OP_TB, /* Table branch. */
7019 OP_APSR_RR, /* ARM register or "APSR_nzcv". */
7021 OP_RRnpc_I0, /* ARM register or literal 0 */
7022 OP_RR_EXr, /* ARM register or expression with opt. reloc stuff. */
7023 OP_RR_EXi, /* ARM register or expression with imm prefix */
7024 OP_RF_IF, /* FPA register or immediate */
7025 OP_RIWR_RIWC, /* iWMMXt R or C reg */
7026 OP_RIWC_RIWG, /* iWMMXt wC or wCG reg */
7028 /* Optional operands. */
7029 OP_oI7b, /* immediate, prefix optional, 0 .. 7 */
7030 OP_oI31b, /* 0 .. 31 */
7031 OP_oI32b, /* 1 .. 32 */
7032 OP_oI32z, /* 0 .. 32 */
7033 OP_oIffffb, /* 0 .. 65535 */
7034 OP_oI255c, /* curly-brace enclosed, 0 .. 255 */
7036 OP_oRR, /* ARM register */
7037 OP_oLR, /* ARM LR register */
7038 OP_oRRnpc, /* ARM register, not the PC */
7039 OP_oRRnpcsp, /* ARM register, neither the PC nor the SP (a.k.a. BadReg) */
7040 OP_oRRw, /* ARM register, not r15, optional trailing ! */
7041 OP_oRND, /* Optional Neon double precision register */
7042 OP_oRNQ, /* Optional Neon quad precision register */
7043 OP_oRNDQMQ, /* Optional Neon double, quad or MVE vector register. */
7044 OP_oRNDQ, /* Optional Neon double or quad precision register */
7045 OP_oRNSDQ, /* Optional single, double or quad precision vector register */
7046 OP_oRNSDQMQ, /* Optional single, double or quad register or MVE vector
7048 OP_oSHll, /* LSL immediate */
7049 OP_oSHar, /* ASR immediate */
7050 OP_oSHllar, /* LSL or ASR immediate */
7051 OP_oROR, /* ROR 0/8/16/24 */
7052 OP_oBARRIER_I15, /* Option argument for a barrier instruction. */
7054 OP_oRMQRZ, /* optional MVE vector or ARM register including ZR. */
7056 /* Some pre-defined mixed (ARM/THUMB) operands. */
7057 OP_RR_npcsp = MIX_ARM_THUMB_OPERANDS (OP_RR, OP_RRnpcsp),
7058 OP_RRnpc_npcsp = MIX_ARM_THUMB_OPERANDS (OP_RRnpc, OP_RRnpcsp),
7059 OP_oRRnpc_npcsp = MIX_ARM_THUMB_OPERANDS (OP_oRRnpc, OP_oRRnpcsp),
7061 OP_FIRST_OPTIONAL = OP_oI7b
7064 /* Generic instruction operand parser. This does no encoding and no
7065 semantic validation; it merely squirrels values away in the inst
7066 structure. Returns SUCCESS or FAIL depending on whether the
7067 specified grammar matched. */
7069 parse_operands (char *str, const unsigned int *pattern, bfd_boolean thumb)
7071 unsigned const int *upat = pattern;
7072 char *backtrack_pos = 0;
7073 const char *backtrack_error = 0;
7074 int i, val = 0, backtrack_index = 0;
7075 enum arm_reg_type rtype;
7076 parse_operand_result result;
7077 unsigned int op_parse_code;
7078 bfd_boolean partial_match;
7080 #define po_char_or_fail(chr) \
7083 if (skip_past_char (&str, chr) == FAIL) \
7088 #define po_reg_or_fail(regtype) \
7091 val = arm_typed_reg_parse (& str, regtype, & rtype, \
7092 & inst.operands[i].vectype); \
7095 first_error (_(reg_expected_msgs[regtype])); \
7098 inst.operands[i].reg = val; \
7099 inst.operands[i].isreg = 1; \
7100 inst.operands[i].isquad = (rtype == REG_TYPE_NQ); \
7101 inst.operands[i].issingle = (rtype == REG_TYPE_VFS); \
7102 inst.operands[i].isvec = (rtype == REG_TYPE_VFS \
7103 || rtype == REG_TYPE_VFD \
7104 || rtype == REG_TYPE_NQ); \
7105 inst.operands[i].iszr = (rtype == REG_TYPE_ZR); \
7109 #define po_reg_or_goto(regtype, label) \
7112 val = arm_typed_reg_parse (& str, regtype, & rtype, \
7113 & inst.operands[i].vectype); \
7117 inst.operands[i].reg = val; \
7118 inst.operands[i].isreg = 1; \
7119 inst.operands[i].isquad = (rtype == REG_TYPE_NQ); \
7120 inst.operands[i].issingle = (rtype == REG_TYPE_VFS); \
7121 inst.operands[i].isvec = (rtype == REG_TYPE_VFS \
7122 || rtype == REG_TYPE_VFD \
7123 || rtype == REG_TYPE_NQ); \
7124 inst.operands[i].iszr = (rtype == REG_TYPE_ZR); \
7128 #define po_imm_or_fail(min, max, popt) \
7131 if (parse_immediate (&str, &val, min, max, popt) == FAIL) \
7133 inst.operands[i].imm = val; \
7137 #define po_scalar_or_goto(elsz, label, reg_type) \
7140 val = parse_scalar (& str, elsz, & inst.operands[i].vectype, \
7144 inst.operands[i].reg = val; \
7145 inst.operands[i].isscalar = 1; \
7149 #define po_misc_or_fail(expr) \
7157 #define po_misc_or_fail_no_backtrack(expr) \
7161 if (result == PARSE_OPERAND_FAIL_NO_BACKTRACK) \
7162 backtrack_pos = 0; \
7163 if (result != PARSE_OPERAND_SUCCESS) \
7168 #define po_barrier_or_imm(str) \
7171 val = parse_barrier (&str); \
7172 if (val == FAIL && ! ISALPHA (*str)) \
7175 /* ISB can only take SY as an option. */ \
7176 || ((inst.instruction & 0xf0) == 0x60 \
7179 inst.error = _("invalid barrier type"); \
7180 backtrack_pos = 0; \
7186 skip_whitespace (str);
7188 for (i = 0; upat[i] != OP_stop; i++)
7190 op_parse_code = upat[i];
7191 if (op_parse_code >= 1<<16)
7192 op_parse_code = thumb ? (op_parse_code >> 16)
7193 : (op_parse_code & ((1<<16)-1));
7195 if (op_parse_code >= OP_FIRST_OPTIONAL)
7197 /* Remember where we are in case we need to backtrack. */
7198 backtrack_pos = str;
7199 backtrack_error = inst.error;
7200 backtrack_index = i;
7203 if (i > 0 && (i > 1 || inst.operands[0].present))
7204 po_char_or_fail (',');
7206 switch (op_parse_code)
7218 case OP_RR: po_reg_or_fail (REG_TYPE_RN); break;
7219 case OP_RCP: po_reg_or_fail (REG_TYPE_CP); break;
7220 case OP_RCN: po_reg_or_fail (REG_TYPE_CN); break;
7221 case OP_RF: po_reg_or_fail (REG_TYPE_FN); break;
7222 case OP_RVS: po_reg_or_fail (REG_TYPE_VFS); break;
7223 case OP_RVD: po_reg_or_fail (REG_TYPE_VFD); break;
7226 po_reg_or_goto (REG_TYPE_RN, try_rndmq);
7230 po_reg_or_goto (REG_TYPE_MQ, try_rnd);
7233 case OP_RND: po_reg_or_fail (REG_TYPE_VFD); break;
7235 po_reg_or_goto (REG_TYPE_VFC, coproc_reg);
7237 /* Also accept generic coprocessor regs for unknown registers. */
7239 po_reg_or_goto (REG_TYPE_CN, vpr_po);
7241 /* Also accept P0 or p0 for VPR.P0. Since P0 is already an
7242 existing register with a value of 0, this seems like the
7243 best way to parse P0. */
7245 if (strncasecmp (str, "P0", 2) == 0)
7248 inst.operands[i].isreg = 1;
7249 inst.operands[i].reg = 13;
7254 case OP_RMF: po_reg_or_fail (REG_TYPE_MVF); break;
7255 case OP_RMD: po_reg_or_fail (REG_TYPE_MVD); break;
7256 case OP_RMFX: po_reg_or_fail (REG_TYPE_MVFX); break;
7257 case OP_RMDX: po_reg_or_fail (REG_TYPE_MVDX); break;
7258 case OP_RMAX: po_reg_or_fail (REG_TYPE_MVAX); break;
7259 case OP_RMDS: po_reg_or_fail (REG_TYPE_DSPSC); break;
7260 case OP_RIWR: po_reg_or_fail (REG_TYPE_MMXWR); break;
7261 case OP_RIWC: po_reg_or_fail (REG_TYPE_MMXWC); break;
7262 case OP_RIWG: po_reg_or_fail (REG_TYPE_MMXWCG); break;
7263 case OP_RXA: po_reg_or_fail (REG_TYPE_XSCALE); break;
7266 po_reg_or_goto (REG_TYPE_MQ, try_nq);
7269 case OP_RNQ: po_reg_or_fail (REG_TYPE_NQ); break;
7270 case OP_RNSD: po_reg_or_fail (REG_TYPE_NSD); break;
7272 po_reg_or_goto (REG_TYPE_RN, try_rndqmq);
7277 po_reg_or_goto (REG_TYPE_MQ, try_rndq);
7281 case OP_RNDQ: po_reg_or_fail (REG_TYPE_NDQ); break;
7283 po_reg_or_goto (REG_TYPE_MQ, try_rvsd);
7286 case OP_RVSD: po_reg_or_fail (REG_TYPE_VFSD); break;
7288 po_reg_or_goto (REG_TYPE_VFSD, try_cond);
7291 case OP_RNSDQ: po_reg_or_fail (REG_TYPE_NSDQ); break;
7293 po_reg_or_goto (REG_TYPE_RN, try_mq);
7298 po_reg_or_goto (REG_TYPE_MQ, try_nsdq2);
7301 po_reg_or_fail (REG_TYPE_NSDQ);
7305 po_reg_or_goto (REG_TYPE_RN, try_rmq);
7309 po_reg_or_fail (REG_TYPE_MQ);
7311 /* Neon scalar. Using an element size of 8 means that some invalid
7312 scalars are accepted here, so deal with those in later code. */
7313 case OP_RNSC: po_scalar_or_goto (8, failure, REG_TYPE_VFD); break;
7317 po_reg_or_goto (REG_TYPE_NDQ, try_imm0);
7320 po_imm_or_fail (0, 0, TRUE);
7325 po_reg_or_goto (REG_TYPE_VFSD, try_imm0);
7329 po_reg_or_goto (REG_TYPE_MQ, try_rsvd_fi0);
7334 po_reg_or_goto (REG_TYPE_VFSD, try_ifimm0);
7337 if (parse_ifimm_zero (&str))
7338 inst.operands[i].imm = 0;
7342 = _("only floating point zero is allowed as immediate value");
7350 po_scalar_or_goto (8, try_rr, REG_TYPE_VFD);
7353 po_reg_or_fail (REG_TYPE_RN);
7357 case OP_RNSDQ_RNSC_MQ_RR:
7358 po_reg_or_goto (REG_TYPE_RN, try_rnsdq_rnsc_mq);
7361 case OP_RNSDQ_RNSC_MQ:
7362 po_reg_or_goto (REG_TYPE_MQ, try_rnsdq_rnsc);
7367 po_scalar_or_goto (8, try_nsdq, REG_TYPE_VFD);
7371 po_reg_or_fail (REG_TYPE_NSDQ);
7378 po_scalar_or_goto (8, try_s_scalar, REG_TYPE_VFD);
7381 po_scalar_or_goto (4, try_nsd, REG_TYPE_VFS);
7384 po_reg_or_fail (REG_TYPE_NSD);
7388 case OP_RNDQMQ_RNSC_RR:
7389 po_reg_or_goto (REG_TYPE_MQ, try_rndq_rnsc_rr);
7392 case OP_RNDQ_RNSC_RR:
7393 po_reg_or_goto (REG_TYPE_RN, try_rndq_rnsc);
7395 case OP_RNDQMQ_RNSC:
7396 po_reg_or_goto (REG_TYPE_MQ, try_rndq_rnsc);
7401 po_scalar_or_goto (8, try_ndq, REG_TYPE_VFD);
7404 po_reg_or_fail (REG_TYPE_NDQ);
7410 po_scalar_or_goto (8, try_vfd, REG_TYPE_VFD);
7413 po_reg_or_fail (REG_TYPE_VFD);
7418 /* WARNING: parse_neon_mov can move the operand counter, i. If we're
7419 not careful then bad things might happen. */
7420 po_misc_or_fail (parse_neon_mov (&str, &i) == FAIL);
7423 case OP_RNDQMQ_Ibig:
7424 po_reg_or_goto (REG_TYPE_MQ, try_rndq_ibig);
7429 po_reg_or_goto (REG_TYPE_NDQ, try_immbig);
7432 /* There's a possibility of getting a 64-bit immediate here, so
7433 we need special handling. */
7434 if (parse_big_immediate (&str, i, NULL, /*allow_symbol_p=*/FALSE)
7437 inst.error = _("immediate value is out of range");
7443 case OP_RNDQMQ_I63b_RR:
7444 po_reg_or_goto (REG_TYPE_MQ, try_rndq_i63b_rr);
7447 po_reg_or_goto (REG_TYPE_RN, try_rndq_i63b);
7452 po_reg_or_goto (REG_TYPE_NDQ, try_shimm);
7455 po_imm_or_fail (0, 63, TRUE);
7460 po_char_or_fail ('[');
7461 po_reg_or_fail (REG_TYPE_RN);
7462 po_char_or_fail (']');
7468 po_reg_or_fail (REG_TYPE_RN);
7469 if (skip_past_char (&str, '!') == SUCCESS)
7470 inst.operands[i].writeback = 1;
7474 case OP_I7: po_imm_or_fail ( 0, 7, FALSE); break;
7475 case OP_I15: po_imm_or_fail ( 0, 15, FALSE); break;
7476 case OP_I16: po_imm_or_fail ( 1, 16, FALSE); break;
7477 case OP_I16z: po_imm_or_fail ( 0, 16, FALSE); break;
7478 case OP_I31: po_imm_or_fail ( 0, 31, FALSE); break;
7479 case OP_I32: po_imm_or_fail ( 1, 32, FALSE); break;
7480 case OP_I32z: po_imm_or_fail ( 0, 32, FALSE); break;
7481 case OP_I63s: po_imm_or_fail (-64, 63, FALSE); break;
7482 case OP_I63: po_imm_or_fail ( 0, 63, FALSE); break;
7483 case OP_I64: po_imm_or_fail ( 1, 64, FALSE); break;
7484 case OP_I64z: po_imm_or_fail ( 0, 64, FALSE); break;
7485 case OP_I255: po_imm_or_fail ( 0, 255, FALSE); break;
7487 case OP_I4b: po_imm_or_fail ( 1, 4, TRUE); break;
7489 case OP_I7b: po_imm_or_fail ( 0, 7, TRUE); break;
7490 case OP_I15b: po_imm_or_fail ( 0, 15, TRUE); break;
7492 case OP_I31b: po_imm_or_fail ( 0, 31, TRUE); break;
7493 case OP_oI32b: po_imm_or_fail ( 1, 32, TRUE); break;
7494 case OP_oI32z: po_imm_or_fail ( 0, 32, TRUE); break;
7495 case OP_oIffffb: po_imm_or_fail ( 0, 0xffff, TRUE); break;
7497 /* Immediate variants */
7499 po_char_or_fail ('{');
7500 po_imm_or_fail (0, 255, TRUE);
7501 po_char_or_fail ('}');
7505 /* The expression parser chokes on a trailing !, so we have
7506 to find it first and zap it. */
7509 while (*s && *s != ',')
7514 inst.operands[i].writeback = 1;
7516 po_imm_or_fail (0, 31, TRUE);
7524 po_misc_or_fail (my_get_expression (&inst.relocs[0].exp, &str,
7529 po_misc_or_fail (my_get_expression (&inst.relocs[0].exp, &str,
7534 po_misc_or_fail (my_get_expression (&inst.relocs[0].exp, &str,
7536 if (inst.relocs[0].exp.X_op == O_symbol)
7538 val = parse_reloc (&str);
7541 inst.error = _("unrecognized relocation suffix");
7544 else if (val != BFD_RELOC_UNUSED)
7546 inst.operands[i].imm = val;
7547 inst.operands[i].hasreloc = 1;
7553 po_misc_or_fail (my_get_expression (&inst.relocs[i].exp, &str,
7555 if (inst.relocs[i].exp.X_op == O_symbol)
7557 inst.operands[i].hasreloc = 1;
7559 else if (inst.relocs[i].exp.X_op == O_constant)
7561 inst.operands[i].imm = inst.relocs[i].exp.X_add_number;
7562 inst.operands[i].hasreloc = 0;
7566 /* Operand for MOVW or MOVT. */
7568 po_misc_or_fail (parse_half (&str));
7571 /* Register or expression. */
7572 case OP_RR_EXr: po_reg_or_goto (REG_TYPE_RN, EXPr); break;
7573 case OP_RR_EXi: po_reg_or_goto (REG_TYPE_RN, EXPi); break;
7575 /* Register or immediate. */
7576 case OP_RRnpc_I0: po_reg_or_goto (REG_TYPE_RN, I0); break;
7577 I0: po_imm_or_fail (0, 0, FALSE); break;
7579 case OP_RRnpcsp_I32: po_reg_or_goto (REG_TYPE_RN, I32); break;
7580 I32: po_imm_or_fail (1, 32, FALSE); break;
7582 case OP_RF_IF: po_reg_or_goto (REG_TYPE_FN, IF); break;
7584 if (!is_immediate_prefix (*str))
7587 val = parse_fpa_immediate (&str);
7590 /* FPA immediates are encoded as registers 8-15.
7591 parse_fpa_immediate has already applied the offset. */
7592 inst.operands[i].reg = val;
7593 inst.operands[i].isreg = 1;
7596 case OP_RIWR_I32z: po_reg_or_goto (REG_TYPE_MMXWR, I32z); break;
7597 I32z: po_imm_or_fail (0, 32, FALSE); break;
7599 /* Two kinds of register. */
7602 struct reg_entry *rege = arm_reg_parse_multi (&str);
7604 || (rege->type != REG_TYPE_MMXWR
7605 && rege->type != REG_TYPE_MMXWC
7606 && rege->type != REG_TYPE_MMXWCG))
7608 inst.error = _("iWMMXt data or control register expected");
7611 inst.operands[i].reg = rege->number;
7612 inst.operands[i].isreg = (rege->type == REG_TYPE_MMXWR);
7618 struct reg_entry *rege = arm_reg_parse_multi (&str);
7620 || (rege->type != REG_TYPE_MMXWC
7621 && rege->type != REG_TYPE_MMXWCG))
7623 inst.error = _("iWMMXt control register expected");
7626 inst.operands[i].reg = rege->number;
7627 inst.operands[i].isreg = 1;
7632 case OP_CPSF: val = parse_cps_flags (&str); break;
7633 case OP_ENDI: val = parse_endian_specifier (&str); break;
7634 case OP_oROR: val = parse_ror (&str); break;
7636 case OP_COND: val = parse_cond (&str); break;
7637 case OP_oBARRIER_I15:
7638 po_barrier_or_imm (str); break;
7640 if (parse_immediate (&str, &val, 0, 15, TRUE) == FAIL)
7646 po_reg_or_goto (REG_TYPE_RNB, try_psr);
7647 if (!ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_virt))
7649 inst.error = _("Banked registers are not available with this "
7655 val = parse_psr (&str, op_parse_code == OP_wPSR);
7659 po_reg_or_goto (REG_TYPE_VFSD, try_sysreg);
7662 val = parse_sys_vldr_vstr (&str);
7666 po_reg_or_goto (REG_TYPE_RN, try_apsr);
7669 /* Parse "APSR_nvzc" operand (for FMSTAT-equivalent MRS
7671 if (strncasecmp (str, "APSR_", 5) == 0)
7678 case 'c': found = (found & 1) ? 16 : found | 1; break;
7679 case 'n': found = (found & 2) ? 16 : found | 2; break;
7680 case 'z': found = (found & 4) ? 16 : found | 4; break;
7681 case 'v': found = (found & 8) ? 16 : found | 8; break;
7682 default: found = 16;
7686 inst.operands[i].isvec = 1;
7687 /* APSR_nzcv is encoded in instructions as if it were the REG_PC. */
7688 inst.operands[i].reg = REG_PC;
7695 po_misc_or_fail (parse_tb (&str));
7698 /* Register lists. */
7700 val = parse_reg_list (&str, REGLIST_RN);
7703 inst.operands[i].writeback = 1;
7709 val = parse_reg_list (&str, REGLIST_CLRM);
7713 val = parse_vfp_reg_list (&str, &inst.operands[i].reg, REGLIST_VFP_S,
7718 val = parse_vfp_reg_list (&str, &inst.operands[i].reg, REGLIST_VFP_D,
7723 /* Allow Q registers too. */
7724 val = parse_vfp_reg_list (&str, &inst.operands[i].reg,
7725 REGLIST_NEON_D, &partial_match);
7729 val = parse_vfp_reg_list (&str, &inst.operands[i].reg,
7730 REGLIST_VFP_S, &partial_match);
7731 inst.operands[i].issingle = 1;
7736 val = parse_vfp_reg_list (&str, &inst.operands[i].reg,
7737 REGLIST_VFP_D_VPR, &partial_match);
7738 if (val == FAIL && !partial_match)
7741 val = parse_vfp_reg_list (&str, &inst.operands[i].reg,
7742 REGLIST_VFP_S_VPR, &partial_match);
7743 inst.operands[i].issingle = 1;
7748 val = parse_vfp_reg_list (&str, &inst.operands[i].reg,
7749 REGLIST_NEON_D, &partial_match);
7754 val = parse_neon_el_struct_list (&str, &inst.operands[i].reg,
7755 1, &inst.operands[i].vectype);
7756 if (val != (((op_parse_code == OP_MSTRLST2) ? 3 : 7) << 5 | 0xe))
7760 val = parse_neon_el_struct_list (&str, &inst.operands[i].reg,
7761 0, &inst.operands[i].vectype);
7764 /* Addressing modes */
7766 po_misc_or_fail (parse_address_group_reloc (&str, i, GROUP_MVE));
7770 po_misc_or_fail (parse_address (&str, i));
7774 po_misc_or_fail_no_backtrack (
7775 parse_address_group_reloc (&str, i, GROUP_LDR));
7779 po_misc_or_fail_no_backtrack (
7780 parse_address_group_reloc (&str, i, GROUP_LDRS));
7784 po_misc_or_fail_no_backtrack (
7785 parse_address_group_reloc (&str, i, GROUP_LDC));
7789 po_misc_or_fail (parse_shifter_operand (&str, i));
7793 po_misc_or_fail_no_backtrack (
7794 parse_shifter_operand_group_reloc (&str, i));
7798 po_misc_or_fail (parse_shift (&str, i, SHIFT_LSL_IMMEDIATE));
7802 po_misc_or_fail (parse_shift (&str, i, SHIFT_ASR_IMMEDIATE));
7806 po_misc_or_fail (parse_shift (&str, i, SHIFT_LSL_OR_ASR_IMMEDIATE));
7811 po_reg_or_goto (REG_TYPE_MQ, try_rr_zr);
7816 po_reg_or_goto (REG_TYPE_RN, ZR);
7819 po_reg_or_fail (REG_TYPE_ZR);
7823 as_fatal (_("unhandled operand code %d"), op_parse_code);
7826 /* Various value-based sanity checks and shared operations. We
7827 do not signal immediate failures for the register constraints;
7828 this allows a syntax error to take precedence. */
7829 switch (op_parse_code)
7837 if (inst.operands[i].isreg && inst.operands[i].reg == REG_PC)
7838 inst.error = BAD_PC;
7843 case OP_RRnpcsp_I32:
7844 if (inst.operands[i].isreg)
7846 if (inst.operands[i].reg == REG_PC)
7847 inst.error = BAD_PC;
7848 else if (inst.operands[i].reg == REG_SP
7849 /* The restriction on Rd/Rt/Rt2 on Thumb mode has been
7850 relaxed since ARMv8-A. */
7851 && !ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v8))
7854 inst.error = BAD_SP;
7860 if (inst.operands[i].isreg
7861 && inst.operands[i].reg == REG_PC
7862 && (inst.operands[i].writeback || thumb))
7863 inst.error = BAD_PC;
7868 if (inst.operands[i].isreg)
7878 case OP_oBARRIER_I15:
7891 inst.operands[i].imm = val;
7896 if (inst.operands[i].reg != REG_LR)
7897 inst.error = _("operand must be LR register");
7903 if (!inst.operands[i].iszr && inst.operands[i].reg == REG_PC)
7904 inst.error = BAD_PC;
7908 if (inst.operands[i].isreg
7909 && (inst.operands[i].reg & 0x00000001) != 0)
7910 inst.error = BAD_ODD;
7914 if (inst.operands[i].isreg)
7916 if ((inst.operands[i].reg & 0x00000001) != 1)
7917 inst.error = BAD_EVEN;
7918 else if (inst.operands[i].reg == REG_SP)
7919 as_tsktsk (MVE_BAD_SP);
7920 else if (inst.operands[i].reg == REG_PC)
7921 inst.error = BAD_PC;
7929 /* If we get here, this operand was successfully parsed. */
7930 inst.operands[i].present = 1;
7934 inst.error = BAD_ARGS;
7939 /* The parse routine should already have set inst.error, but set a
7940 default here just in case. */
7942 inst.error = BAD_SYNTAX;
7946 /* Do not backtrack over a trailing optional argument that
7947 absorbed some text. We will only fail again, with the
7948 'garbage following instruction' error message, which is
7949 probably less helpful than the current one. */
7950 if (backtrack_index == i && backtrack_pos != str
7951 && upat[i+1] == OP_stop)
7954 inst.error = BAD_SYNTAX;
7958 /* Try again, skipping the optional argument at backtrack_pos. */
7959 str = backtrack_pos;
7960 inst.error = backtrack_error;
7961 inst.operands[backtrack_index].present = 0;
7962 i = backtrack_index;
7966 /* Check that we have parsed all the arguments. */
7967 if (*str != '\0' && !inst.error)
7968 inst.error = _("garbage following instruction");
7970 return inst.error ? FAIL : SUCCESS;
7973 #undef po_char_or_fail
7974 #undef po_reg_or_fail
7975 #undef po_reg_or_goto
7976 #undef po_imm_or_fail
7977 #undef po_scalar_or_fail
7978 #undef po_barrier_or_imm
7980 /* Shorthand macro for instruction encoding functions issuing errors. */
7981 #define constraint(expr, err) \
7992 /* Reject "bad registers" for Thumb-2 instructions. Many Thumb-2
7993 instructions are unpredictable if these registers are used. This
7994 is the BadReg predicate in ARM's Thumb-2 documentation.
7996 Before ARMv8-A, REG_PC and REG_SP were not allowed in quite a few
7997 places, while the restriction on REG_SP was relaxed since ARMv8-A. */
7998 #define reject_bad_reg(reg) \
8000 if (reg == REG_PC) \
8002 inst.error = BAD_PC; \
8005 else if (reg == REG_SP \
8006 && !ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v8)) \
8008 inst.error = BAD_SP; \
8013 /* If REG is R13 (the stack pointer), warn that its use is
8015 #define warn_deprecated_sp(reg) \
8017 if (warn_on_deprecated && reg == REG_SP) \
8018 as_tsktsk (_("use of r13 is deprecated")); \
8021 /* Functions for operand encoding. ARM, then Thumb. */
8023 #define rotate_left(v, n) (v << (n & 31) | v >> ((32 - n) & 31))
8025 /* If the current inst is scalar ARMv8.2 fp16 instruction, do special encoding.
8027 The only binary encoding difference is the Coprocessor number. Coprocessor
8028 9 is used for half-precision calculations or conversions. The format of the
8029 instruction is the same as the equivalent Coprocessor 10 instruction that
8030 exists for Single-Precision operation. */
8033 do_scalar_fp16_v82_encode (void)
8035 if (inst.cond < COND_ALWAYS)
8036 as_warn (_("ARMv8.2 scalar fp16 instruction cannot be conditional,"
8037 " the behaviour is UNPREDICTABLE"));
8038 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_fp16),
8041 inst.instruction = (inst.instruction & 0xfffff0ff) | 0x900;
8042 mark_feature_used (&arm_ext_fp16);
8045 /* If VAL can be encoded in the immediate field of an ARM instruction,
8046 return the encoded form. Otherwise, return FAIL. */
8049 encode_arm_immediate (unsigned int val)
8056 for (i = 2; i < 32; i += 2)
8057 if ((a = rotate_left (val, i)) <= 0xff)
8058 return a | (i << 7); /* 12-bit pack: [shift-cnt,const]. */
8063 /* If VAL can be encoded in the immediate field of a Thumb32 instruction,
8064 return the encoded form. Otherwise, return FAIL. */
8066 encode_thumb32_immediate (unsigned int val)
8073 for (i = 1; i <= 24; i++)
8076 if ((val & ~(0xff << i)) == 0)
8077 return ((val >> i) & 0x7f) | ((32 - i) << 7);
8081 if (val == ((a << 16) | a))
8083 if (val == ((a << 24) | (a << 16) | (a << 8) | a))
8087 if (val == ((a << 16) | a))
8088 return 0x200 | (a >> 8);
8092 /* Encode a VFP SP or DP register number into inst.instruction. */
8095 encode_arm_vfp_reg (int reg, enum vfp_reg_pos pos)
8097 if ((pos == VFP_REG_Dd || pos == VFP_REG_Dn || pos == VFP_REG_Dm)
8100 if (ARM_CPU_HAS_FEATURE (cpu_variant, fpu_vfp_ext_d32))
8103 ARM_MERGE_FEATURE_SETS (thumb_arch_used, thumb_arch_used,
8106 ARM_MERGE_FEATURE_SETS (arm_arch_used, arm_arch_used,
8111 first_error (_("D register out of range for selected VFP version"));
8119 inst.instruction |= ((reg >> 1) << 12) | ((reg & 1) << 22);
8123 inst.instruction |= ((reg >> 1) << 16) | ((reg & 1) << 7);
8127 inst.instruction |= ((reg >> 1) << 0) | ((reg & 1) << 5);
8131 inst.instruction |= ((reg & 15) << 12) | ((reg >> 4) << 22);
8135 inst.instruction |= ((reg & 15) << 16) | ((reg >> 4) << 7);
8139 inst.instruction |= (reg & 15) | ((reg >> 4) << 5);
8147 /* Encode a <shift> in an ARM-format instruction. The immediate,
8148 if any, is handled by md_apply_fix. */
8150 encode_arm_shift (int i)
8152 /* register-shifted register. */
8153 if (inst.operands[i].immisreg)
8156 for (op_index = 0; op_index <= i; ++op_index)
8158 /* Check the operand only when it's presented. In pre-UAL syntax,
8159 if the destination register is the same as the first operand, two
8160 register form of the instruction can be used. */
8161 if (inst.operands[op_index].present && inst.operands[op_index].isreg
8162 && inst.operands[op_index].reg == REG_PC)
8163 as_warn (UNPRED_REG ("r15"));
8166 if (inst.operands[i].imm == REG_PC)
8167 as_warn (UNPRED_REG ("r15"));
8170 if (inst.operands[i].shift_kind == SHIFT_RRX)
8171 inst.instruction |= SHIFT_ROR << 5;
8174 inst.instruction |= inst.operands[i].shift_kind << 5;
8175 if (inst.operands[i].immisreg)
8177 inst.instruction |= SHIFT_BY_REG;
8178 inst.instruction |= inst.operands[i].imm << 8;
8181 inst.relocs[0].type = BFD_RELOC_ARM_SHIFT_IMM;
8186 encode_arm_shifter_operand (int i)
8188 if (inst.operands[i].isreg)
8190 inst.instruction |= inst.operands[i].reg;
8191 encode_arm_shift (i);
8195 inst.instruction |= INST_IMMEDIATE;
8196 if (inst.relocs[0].type != BFD_RELOC_ARM_IMMEDIATE)
8197 inst.instruction |= inst.operands[i].imm;
8201 /* Subroutine of encode_arm_addr_mode_2 and encode_arm_addr_mode_3. */
8203 encode_arm_addr_mode_common (int i, bfd_boolean is_t)
8206 Generate an error if the operand is not a register. */
8207 constraint (!inst.operands[i].isreg,
8208 _("Instruction does not support =N addresses"));
8210 inst.instruction |= inst.operands[i].reg << 16;
8212 if (inst.operands[i].preind)
8216 inst.error = _("instruction does not accept preindexed addressing");
8219 inst.instruction |= PRE_INDEX;
8220 if (inst.operands[i].writeback)
8221 inst.instruction |= WRITE_BACK;
8224 else if (inst.operands[i].postind)
8226 gas_assert (inst.operands[i].writeback);
8228 inst.instruction |= WRITE_BACK;
8230 else /* unindexed - only for coprocessor */
8232 inst.error = _("instruction does not accept unindexed addressing");
8236 if (((inst.instruction & WRITE_BACK) || !(inst.instruction & PRE_INDEX))
8237 && (((inst.instruction & 0x000f0000) >> 16)
8238 == ((inst.instruction & 0x0000f000) >> 12)))
8239 as_warn ((inst.instruction & LOAD_BIT)
8240 ? _("destination register same as write-back base")
8241 : _("source register same as write-back base"));
8244 /* inst.operands[i] was set up by parse_address. Encode it into an
8245 ARM-format mode 2 load or store instruction. If is_t is true,
8246 reject forms that cannot be used with a T instruction (i.e. not
8249 encode_arm_addr_mode_2 (int i, bfd_boolean is_t)
8251 const bfd_boolean is_pc = (inst.operands[i].reg == REG_PC);
8253 encode_arm_addr_mode_common (i, is_t);
8255 if (inst.operands[i].immisreg)
8257 constraint ((inst.operands[i].imm == REG_PC
8258 || (is_pc && inst.operands[i].writeback)),
8260 inst.instruction |= INST_IMMEDIATE; /* yes, this is backwards */
8261 inst.instruction |= inst.operands[i].imm;
8262 if (!inst.operands[i].negative)
8263 inst.instruction |= INDEX_UP;
8264 if (inst.operands[i].shifted)
8266 if (inst.operands[i].shift_kind == SHIFT_RRX)
8267 inst.instruction |= SHIFT_ROR << 5;
8270 inst.instruction |= inst.operands[i].shift_kind << 5;
8271 inst.relocs[0].type = BFD_RELOC_ARM_SHIFT_IMM;
8275 else /* immediate offset in inst.relocs[0] */
8277 if (is_pc && !inst.relocs[0].pc_rel)
8279 const bfd_boolean is_load = ((inst.instruction & LOAD_BIT) != 0);
8281 /* If is_t is TRUE, it's called from do_ldstt. ldrt/strt
8282 cannot use PC in addressing.
8283 PC cannot be used in writeback addressing, either. */
8284 constraint ((is_t || inst.operands[i].writeback),
8287 /* Use of PC in str is deprecated for ARMv7. */
8288 if (warn_on_deprecated
8290 && ARM_CPU_HAS_FEATURE (selected_cpu, arm_ext_v7))
8291 as_tsktsk (_("use of PC in this instruction is deprecated"));
8294 if (inst.relocs[0].type == BFD_RELOC_UNUSED)
8296 /* Prefer + for zero encoded value. */
8297 if (!inst.operands[i].negative)
8298 inst.instruction |= INDEX_UP;
8299 inst.relocs[0].type = BFD_RELOC_ARM_OFFSET_IMM;
8304 /* inst.operands[i] was set up by parse_address. Encode it into an
8305 ARM-format mode 3 load or store instruction. Reject forms that
8306 cannot be used with such instructions. If is_t is true, reject
8307 forms that cannot be used with a T instruction (i.e. not
8310 encode_arm_addr_mode_3 (int i, bfd_boolean is_t)
8312 if (inst.operands[i].immisreg && inst.operands[i].shifted)
8314 inst.error = _("instruction does not accept scaled register index");
8318 encode_arm_addr_mode_common (i, is_t);
8320 if (inst.operands[i].immisreg)
8322 constraint ((inst.operands[i].imm == REG_PC
8323 || (is_t && inst.operands[i].reg == REG_PC)),
8325 constraint (inst.operands[i].reg == REG_PC && inst.operands[i].writeback,
8327 inst.instruction |= inst.operands[i].imm;
8328 if (!inst.operands[i].negative)
8329 inst.instruction |= INDEX_UP;
8331 else /* immediate offset in inst.relocs[0] */
8333 constraint ((inst.operands[i].reg == REG_PC && !inst.relocs[0].pc_rel
8334 && inst.operands[i].writeback),
8336 inst.instruction |= HWOFFSET_IMM;
8337 if (inst.relocs[0].type == BFD_RELOC_UNUSED)
8339 /* Prefer + for zero encoded value. */
8340 if (!inst.operands[i].negative)
8341 inst.instruction |= INDEX_UP;
8343 inst.relocs[0].type = BFD_RELOC_ARM_OFFSET_IMM8;
8348 /* Write immediate bits [7:0] to the following locations:
8350 |28/24|23 19|18 16|15 4|3 0|
8351 | a |x x x x x|b c d|x x x x x x x x x x x x|e f g h|
8353 This function is used by VMOV/VMVN/VORR/VBIC. */
8356 neon_write_immbits (unsigned immbits)
8358 inst.instruction |= immbits & 0xf;
8359 inst.instruction |= ((immbits >> 4) & 0x7) << 16;
8360 inst.instruction |= ((immbits >> 7) & 0x1) << (thumb_mode ? 28 : 24);
8363 /* Invert low-order SIZE bits of XHI:XLO. */
8366 neon_invert_size (unsigned *xlo, unsigned *xhi, int size)
8368 unsigned immlo = xlo ? *xlo : 0;
8369 unsigned immhi = xhi ? *xhi : 0;
8374 immlo = (~immlo) & 0xff;
8378 immlo = (~immlo) & 0xffff;
8382 immhi = (~immhi) & 0xffffffff;
8386 immlo = (~immlo) & 0xffffffff;
8400 /* True if IMM has form 0bAAAAAAAABBBBBBBBCCCCCCCCDDDDDDDD for bits
8404 neon_bits_same_in_bytes (unsigned imm)
8406 return ((imm & 0x000000ff) == 0 || (imm & 0x000000ff) == 0x000000ff)
8407 && ((imm & 0x0000ff00) == 0 || (imm & 0x0000ff00) == 0x0000ff00)
8408 && ((imm & 0x00ff0000) == 0 || (imm & 0x00ff0000) == 0x00ff0000)
8409 && ((imm & 0xff000000) == 0 || (imm & 0xff000000) == 0xff000000);
8412 /* For immediate of above form, return 0bABCD. */
8415 neon_squash_bits (unsigned imm)
8417 return (imm & 0x01) | ((imm & 0x0100) >> 7) | ((imm & 0x010000) >> 14)
8418 | ((imm & 0x01000000) >> 21);
8421 /* Compress quarter-float representation to 0b...000 abcdefgh. */
8424 neon_qfloat_bits (unsigned imm)
8426 return ((imm >> 19) & 0x7f) | ((imm >> 24) & 0x80);
8429 /* Returns CMODE. IMMBITS [7:0] is set to bits suitable for inserting into
8430 the instruction. *OP is passed as the initial value of the op field, and
8431 may be set to a different value depending on the constant (i.e.
8432 "MOV I64, 0bAAAAAAAABBBB..." which uses OP = 1 despite being MOV not
8433 MVN). If the immediate looks like a repeated pattern then also
8434 try smaller element sizes. */
8437 neon_cmode_for_move_imm (unsigned immlo, unsigned immhi, int float_p,
8438 unsigned *immbits, int *op, int size,
8439 enum neon_el_type type)
8441 /* Only permit float immediates (including 0.0/-0.0) if the operand type is
8443 if (type == NT_float && !float_p)
8446 if (type == NT_float && is_quarter_float (immlo) && immhi == 0)
8448 if (size != 32 || *op == 1)
8450 *immbits = neon_qfloat_bits (immlo);
8456 if (neon_bits_same_in_bytes (immhi)
8457 && neon_bits_same_in_bytes (immlo))
8461 *immbits = (neon_squash_bits (immhi) << 4)
8462 | neon_squash_bits (immlo);
8473 if (immlo == (immlo & 0x000000ff))
8478 else if (immlo == (immlo & 0x0000ff00))
8480 *immbits = immlo >> 8;
8483 else if (immlo == (immlo & 0x00ff0000))
8485 *immbits = immlo >> 16;
8488 else if (immlo == (immlo & 0xff000000))
8490 *immbits = immlo >> 24;
8493 else if (immlo == ((immlo & 0x0000ff00) | 0x000000ff))
8495 *immbits = (immlo >> 8) & 0xff;
8498 else if (immlo == ((immlo & 0x00ff0000) | 0x0000ffff))
8500 *immbits = (immlo >> 16) & 0xff;
8504 if ((immlo & 0xffff) != (immlo >> 16))
8511 if (immlo == (immlo & 0x000000ff))
8516 else if (immlo == (immlo & 0x0000ff00))
8518 *immbits = immlo >> 8;
8522 if ((immlo & 0xff) != (immlo >> 8))
8527 if (immlo == (immlo & 0x000000ff))
8529 /* Don't allow MVN with 8-bit immediate. */
8539 #if defined BFD_HOST_64_BIT
8540 /* Returns TRUE if double precision value V may be cast
8541 to single precision without loss of accuracy. */
8544 is_double_a_single (bfd_int64_t v)
8546 int exp = (int)((v >> 52) & 0x7FF);
8547 bfd_int64_t mantissa = (v & (bfd_int64_t)0xFFFFFFFFFFFFFULL);
8549 return (exp == 0 || exp == 0x7FF
8550 || (exp >= 1023 - 126 && exp <= 1023 + 127))
8551 && (mantissa & 0x1FFFFFFFl) == 0;
8554 /* Returns a double precision value casted to single precision
8555 (ignoring the least significant bits in exponent and mantissa). */
8558 double_to_single (bfd_int64_t v)
8560 int sign = (int) ((v >> 63) & 1l);
8561 int exp = (int) ((v >> 52) & 0x7FF);
8562 bfd_int64_t mantissa = (v & (bfd_int64_t)0xFFFFFFFFFFFFFULL);
8568 exp = exp - 1023 + 127;
8577 /* No denormalized numbers. */
8583 return (sign << 31) | (exp << 23) | mantissa;
8585 #endif /* BFD_HOST_64_BIT */
8594 static void do_vfp_nsyn_opcode (const char *);
8596 /* inst.relocs[0].exp describes an "=expr" load pseudo-operation.
8597 Determine whether it can be performed with a move instruction; if
8598 it can, convert inst.instruction to that move instruction and
8599 return TRUE; if it can't, convert inst.instruction to a literal-pool
8600 load and return FALSE. If this is not a valid thing to do in the
8601 current context, set inst.error and return TRUE.
8603 inst.operands[i] describes the destination register. */
8606 move_or_literal_pool (int i, enum lit_type t, bfd_boolean mode_3)
8609 bfd_boolean thumb_p = (t == CONST_THUMB);
8610 bfd_boolean arm_p = (t == CONST_ARM);
8613 tbit = (inst.instruction > 0xffff) ? THUMB2_LOAD_BIT : THUMB_LOAD_BIT;
8617 if ((inst.instruction & tbit) == 0)
8619 inst.error = _("invalid pseudo operation");
8623 if (inst.relocs[0].exp.X_op != O_constant
8624 && inst.relocs[0].exp.X_op != O_symbol
8625 && inst.relocs[0].exp.X_op != O_big)
8627 inst.error = _("constant expression expected");
8631 if (inst.relocs[0].exp.X_op == O_constant
8632 || inst.relocs[0].exp.X_op == O_big)
8634 #if defined BFD_HOST_64_BIT
8639 if (inst.relocs[0].exp.X_op == O_big)
8641 LITTLENUM_TYPE w[X_PRECISION];
8644 if (inst.relocs[0].exp.X_add_number == -1)
8646 gen_to_words (w, X_PRECISION, E_PRECISION);
8648 /* FIXME: Should we check words w[2..5] ? */
8653 #if defined BFD_HOST_64_BIT
8655 ((((((((bfd_int64_t) l[3] & LITTLENUM_MASK)
8656 << LITTLENUM_NUMBER_OF_BITS)
8657 | ((bfd_int64_t) l[2] & LITTLENUM_MASK))
8658 << LITTLENUM_NUMBER_OF_BITS)
8659 | ((bfd_int64_t) l[1] & LITTLENUM_MASK))
8660 << LITTLENUM_NUMBER_OF_BITS)
8661 | ((bfd_int64_t) l[0] & LITTLENUM_MASK));
8663 v = ((l[1] & LITTLENUM_MASK) << LITTLENUM_NUMBER_OF_BITS)
8664 | (l[0] & LITTLENUM_MASK);
8668 v = inst.relocs[0].exp.X_add_number;
8670 if (!inst.operands[i].issingle)
8674 /* LDR should not use lead in a flag-setting instruction being
8675 chosen so we do not check whether movs can be used. */
8677 if ((ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v6t2)
8678 || ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v6t2_v8m))
8679 && inst.operands[i].reg != 13
8680 && inst.operands[i].reg != 15)
8682 /* Check if on thumb2 it can be done with a mov.w, mvn or
8683 movw instruction. */
8684 unsigned int newimm;
8685 bfd_boolean isNegated;
8687 newimm = encode_thumb32_immediate (v);
8688 if (newimm != (unsigned int) FAIL)
8692 newimm = encode_thumb32_immediate (~v);
8693 if (newimm != (unsigned int) FAIL)
8697 /* The number can be loaded with a mov.w or mvn
8699 if (newimm != (unsigned int) FAIL
8700 && ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v6t2))
8702 inst.instruction = (0xf04f0000 /* MOV.W. */
8703 | (inst.operands[i].reg << 8));
8704 /* Change to MOVN. */
8705 inst.instruction |= (isNegated ? 0x200000 : 0);
8706 inst.instruction |= (newimm & 0x800) << 15;
8707 inst.instruction |= (newimm & 0x700) << 4;
8708 inst.instruction |= (newimm & 0x0ff);
8711 /* The number can be loaded with a movw instruction. */
8712 else if ((v & ~0xFFFF) == 0
8713 && ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v6t2_v8m))
8715 int imm = v & 0xFFFF;
8717 inst.instruction = 0xf2400000; /* MOVW. */
8718 inst.instruction |= (inst.operands[i].reg << 8);
8719 inst.instruction |= (imm & 0xf000) << 4;
8720 inst.instruction |= (imm & 0x0800) << 15;
8721 inst.instruction |= (imm & 0x0700) << 4;
8722 inst.instruction |= (imm & 0x00ff);
8723 /* In case this replacement is being done on Armv8-M
8724 Baseline we need to make sure to disable the
8725 instruction size check, as otherwise GAS will reject
8726 the use of this T32 instruction. */
8734 int value = encode_arm_immediate (v);
8738 /* This can be done with a mov instruction. */
8739 inst.instruction &= LITERAL_MASK;
8740 inst.instruction |= INST_IMMEDIATE | (OPCODE_MOV << DATA_OP_SHIFT);
8741 inst.instruction |= value & 0xfff;
8745 value = encode_arm_immediate (~ v);
8748 /* This can be done with a mvn instruction. */
8749 inst.instruction &= LITERAL_MASK;
8750 inst.instruction |= INST_IMMEDIATE | (OPCODE_MVN << DATA_OP_SHIFT);
8751 inst.instruction |= value & 0xfff;
8755 else if (t == CONST_VEC && ARM_CPU_HAS_FEATURE (cpu_variant, fpu_neon_ext_v1))
8758 unsigned immbits = 0;
8759 unsigned immlo = inst.operands[1].imm;
8760 unsigned immhi = inst.operands[1].regisimm
8761 ? inst.operands[1].reg
8762 : inst.relocs[0].exp.X_unsigned
8764 : ((bfd_int64_t)((int) immlo)) >> 32;
8765 int cmode = neon_cmode_for_move_imm (immlo, immhi, FALSE, &immbits,
8766 &op, 64, NT_invtype);
8770 neon_invert_size (&immlo, &immhi, 64);
8772 cmode = neon_cmode_for_move_imm (immlo, immhi, FALSE, &immbits,
8773 &op, 64, NT_invtype);
8778 inst.instruction = (inst.instruction & VLDR_VMOV_SAME)
8784 /* Fill other bits in vmov encoding for both thumb and arm. */
8786 inst.instruction |= (0x7U << 29) | (0xF << 24);
8788 inst.instruction |= (0xFU << 28) | (0x1 << 25);
8789 neon_write_immbits (immbits);
8797 /* Check if vldr Rx, =constant could be optimized to vmov Rx, #constant. */
8798 if (inst.operands[i].issingle
8799 && is_quarter_float (inst.operands[1].imm)
8800 && ARM_CPU_HAS_FEATURE (cpu_variant, fpu_vfp_ext_v3xd))
8802 inst.operands[1].imm =
8803 neon_qfloat_bits (v);
8804 do_vfp_nsyn_opcode ("fconsts");
8808 /* If our host does not support a 64-bit type then we cannot perform
8809 the following optimization. This mean that there will be a
8810 discrepancy between the output produced by an assembler built for
8811 a 32-bit-only host and the output produced from a 64-bit host, but
8812 this cannot be helped. */
8813 #if defined BFD_HOST_64_BIT
8814 else if (!inst.operands[1].issingle
8815 && ARM_CPU_HAS_FEATURE (cpu_variant, fpu_vfp_ext_v3))
8817 if (is_double_a_single (v)
8818 && is_quarter_float (double_to_single (v)))
8820 inst.operands[1].imm =
8821 neon_qfloat_bits (double_to_single (v));
8822 do_vfp_nsyn_opcode ("fconstd");
8830 if (add_to_lit_pool ((!inst.operands[i].isvec
8831 || inst.operands[i].issingle) ? 4 : 8) == FAIL)
8834 inst.operands[1].reg = REG_PC;
8835 inst.operands[1].isreg = 1;
8836 inst.operands[1].preind = 1;
8837 inst.relocs[0].pc_rel = 1;
8838 inst.relocs[0].type = (thumb_p
8839 ? BFD_RELOC_ARM_THUMB_OFFSET
8841 ? BFD_RELOC_ARM_HWLITERAL
8842 : BFD_RELOC_ARM_LITERAL));
8846 /* inst.operands[i] was set up by parse_address. Encode it into an
8847 ARM-format instruction. Reject all forms which cannot be encoded
8848 into a coprocessor load/store instruction. If wb_ok is false,
8849 reject use of writeback; if unind_ok is false, reject use of
8850 unindexed addressing. If reloc_override is not 0, use it instead
8851 of BFD_ARM_CP_OFF_IMM, unless the initial relocation is a group one
8852 (in which case it is preserved). */
8855 encode_arm_cp_address (int i, int wb_ok, int unind_ok, int reloc_override)
8857 if (!inst.operands[i].isreg)
8860 if (! inst.operands[0].isvec)
8862 inst.error = _("invalid co-processor operand");
8865 if (move_or_literal_pool (0, CONST_VEC, /*mode_3=*/FALSE))
8869 inst.instruction |= inst.operands[i].reg << 16;
8871 gas_assert (!(inst.operands[i].preind && inst.operands[i].postind));
8873 if (!inst.operands[i].preind && !inst.operands[i].postind) /* unindexed */
8875 gas_assert (!inst.operands[i].writeback);
8878 inst.error = _("instruction does not support unindexed addressing");
8881 inst.instruction |= inst.operands[i].imm;
8882 inst.instruction |= INDEX_UP;
8886 if (inst.operands[i].preind)
8887 inst.instruction |= PRE_INDEX;
8889 if (inst.operands[i].writeback)
8891 if (inst.operands[i].reg == REG_PC)
8893 inst.error = _("pc may not be used with write-back");
8898 inst.error = _("instruction does not support writeback");
8901 inst.instruction |= WRITE_BACK;
8905 inst.relocs[0].type = (bfd_reloc_code_real_type) reloc_override;
8906 else if ((inst.relocs[0].type < BFD_RELOC_ARM_ALU_PC_G0_NC
8907 || inst.relocs[0].type > BFD_RELOC_ARM_LDC_SB_G2)
8908 && inst.relocs[0].type != BFD_RELOC_ARM_LDR_PC_G0)
8911 inst.relocs[0].type = BFD_RELOC_ARM_T32_CP_OFF_IMM;
8913 inst.relocs[0].type = BFD_RELOC_ARM_CP_OFF_IMM;
8916 /* Prefer + for zero encoded value. */
8917 if (!inst.operands[i].negative)
8918 inst.instruction |= INDEX_UP;
8923 /* Functions for instruction encoding, sorted by sub-architecture.
8924 First some generics; their names are taken from the conventional
8925 bit positions for register arguments in ARM format instructions. */
8935 inst.instruction |= inst.operands[0].reg << 12;
8941 inst.instruction |= inst.operands[0].reg << 16;
8947 inst.instruction |= inst.operands[0].reg << 12;
8948 inst.instruction |= inst.operands[1].reg;
8954 inst.instruction |= inst.operands[0].reg;
8955 inst.instruction |= inst.operands[1].reg << 16;
8961 inst.instruction |= inst.operands[0].reg << 12;
8962 inst.instruction |= inst.operands[1].reg << 16;
8968 inst.instruction |= inst.operands[0].reg << 16;
8969 inst.instruction |= inst.operands[1].reg << 12;
8975 inst.instruction |= inst.operands[0].reg << 8;
8976 inst.instruction |= inst.operands[1].reg << 16;
8980 check_obsolete (const arm_feature_set *feature, const char *msg)
8982 if (ARM_CPU_IS_ANY (cpu_variant))
8984 as_tsktsk ("%s", msg);
8987 else if (ARM_CPU_HAS_FEATURE (cpu_variant, *feature))
8999 unsigned Rn = inst.operands[2].reg;
9000 /* Enforce restrictions on SWP instruction. */
9001 if ((inst.instruction & 0x0fbfffff) == 0x01000090)
9003 constraint (Rn == inst.operands[0].reg || Rn == inst.operands[1].reg,
9004 _("Rn must not overlap other operands"));
9006 /* SWP{b} is obsolete for ARMv8-A, and deprecated for ARMv6* and ARMv7.
9008 if (!check_obsolete (&arm_ext_v8,
9009 _("swp{b} use is obsoleted for ARMv8 and later"))
9010 && warn_on_deprecated
9011 && ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v6))
9012 as_tsktsk (_("swp{b} use is deprecated for ARMv6 and ARMv7"));
9015 inst.instruction |= inst.operands[0].reg << 12;
9016 inst.instruction |= inst.operands[1].reg;
9017 inst.instruction |= Rn << 16;
9023 inst.instruction |= inst.operands[0].reg << 12;
9024 inst.instruction |= inst.operands[1].reg << 16;
9025 inst.instruction |= inst.operands[2].reg;
9031 constraint ((inst.operands[2].reg == REG_PC), BAD_PC);
9032 constraint (((inst.relocs[0].exp.X_op != O_constant
9033 && inst.relocs[0].exp.X_op != O_illegal)
9034 || inst.relocs[0].exp.X_add_number != 0),
9036 inst.instruction |= inst.operands[0].reg;
9037 inst.instruction |= inst.operands[1].reg << 12;
9038 inst.instruction |= inst.operands[2].reg << 16;
9044 inst.instruction |= inst.operands[0].imm;
9050 inst.instruction |= inst.operands[0].reg << 12;
9051 encode_arm_cp_address (1, TRUE, TRUE, 0);
9054 /* ARM instructions, in alphabetical order by function name (except
9055 that wrapper functions appear immediately after the function they
9058 /* This is a pseudo-op of the form "adr rd, label" to be converted
9059 into a relative address of the form "add rd, pc, #label-.-8". */
9064 inst.instruction |= (inst.operands[0].reg << 12); /* Rd */
9066 /* Frag hacking will turn this into a sub instruction if the offset turns
9067 out to be negative. */
9068 inst.relocs[0].type = BFD_RELOC_ARM_IMMEDIATE;
9069 inst.relocs[0].pc_rel = 1;
9070 inst.relocs[0].exp.X_add_number -= 8;
9072 if (support_interwork
9073 && inst.relocs[0].exp.X_op == O_symbol
9074 && inst.relocs[0].exp.X_add_symbol != NULL
9075 && S_IS_DEFINED (inst.relocs[0].exp.X_add_symbol)
9076 && THUMB_IS_FUNC (inst.relocs[0].exp.X_add_symbol))
9077 inst.relocs[0].exp.X_add_number |= 1;
9080 /* This is a pseudo-op of the form "adrl rd, label" to be converted
9081 into a relative address of the form:
9082 add rd, pc, #low(label-.-8)"
9083 add rd, rd, #high(label-.-8)" */
9088 inst.instruction |= (inst.operands[0].reg << 12); /* Rd */
9090 /* Frag hacking will turn this into a sub instruction if the offset turns
9091 out to be negative. */
9092 inst.relocs[0].type = BFD_RELOC_ARM_ADRL_IMMEDIATE;
9093 inst.relocs[0].pc_rel = 1;
9094 inst.size = INSN_SIZE * 2;
9095 inst.relocs[0].exp.X_add_number -= 8;
9097 if (support_interwork
9098 && inst.relocs[0].exp.X_op == O_symbol
9099 && inst.relocs[0].exp.X_add_symbol != NULL
9100 && S_IS_DEFINED (inst.relocs[0].exp.X_add_symbol)
9101 && THUMB_IS_FUNC (inst.relocs[0].exp.X_add_symbol))
9102 inst.relocs[0].exp.X_add_number |= 1;
9108 constraint (inst.relocs[0].type >= BFD_RELOC_ARM_THUMB_ALU_ABS_G0_NC
9109 && inst.relocs[0].type <= BFD_RELOC_ARM_THUMB_ALU_ABS_G3_NC ,
9111 if (!inst.operands[1].present)
9112 inst.operands[1].reg = inst.operands[0].reg;
9113 inst.instruction |= inst.operands[0].reg << 12;
9114 inst.instruction |= inst.operands[1].reg << 16;
9115 encode_arm_shifter_operand (2);
9121 if (inst.operands[0].present)
9122 inst.instruction |= inst.operands[0].imm;
9124 inst.instruction |= 0xf;
9130 unsigned int msb = inst.operands[1].imm + inst.operands[2].imm;
9131 constraint (msb > 32, _("bit-field extends past end of register"));
9132 /* The instruction encoding stores the LSB and MSB,
9133 not the LSB and width. */
9134 inst.instruction |= inst.operands[0].reg << 12;
9135 inst.instruction |= inst.operands[1].imm << 7;
9136 inst.instruction |= (msb - 1) << 16;
9144 /* #0 in second position is alternative syntax for bfc, which is
9145 the same instruction but with REG_PC in the Rm field. */
9146 if (!inst.operands[1].isreg)
9147 inst.operands[1].reg = REG_PC;
9149 msb = inst.operands[2].imm + inst.operands[3].imm;
9150 constraint (msb > 32, _("bit-field extends past end of register"));
9151 /* The instruction encoding stores the LSB and MSB,
9152 not the LSB and width. */
9153 inst.instruction |= inst.operands[0].reg << 12;
9154 inst.instruction |= inst.operands[1].reg;
9155 inst.instruction |= inst.operands[2].imm << 7;
9156 inst.instruction |= (msb - 1) << 16;
9162 constraint (inst.operands[2].imm + inst.operands[3].imm > 32,
9163 _("bit-field extends past end of register"));
9164 inst.instruction |= inst.operands[0].reg << 12;
9165 inst.instruction |= inst.operands[1].reg;
9166 inst.instruction |= inst.operands[2].imm << 7;
9167 inst.instruction |= (inst.operands[3].imm - 1) << 16;
9170 /* ARM V5 breakpoint instruction (argument parse)
9171 BKPT <16 bit unsigned immediate>
9172 Instruction is not conditional.
9173 The bit pattern given in insns[] has the COND_ALWAYS condition,
9174 and it is an error if the caller tried to override that. */
9179 /* Top 12 of 16 bits to bits 19:8. */
9180 inst.instruction |= (inst.operands[0].imm & 0xfff0) << 4;
9182 /* Bottom 4 of 16 bits to bits 3:0. */
9183 inst.instruction |= inst.operands[0].imm & 0xf;
9187 encode_branch (int default_reloc)
9189 if (inst.operands[0].hasreloc)
9191 constraint (inst.operands[0].imm != BFD_RELOC_ARM_PLT32
9192 && inst.operands[0].imm != BFD_RELOC_ARM_TLS_CALL,
9193 _("the only valid suffixes here are '(plt)' and '(tlscall)'"));
9194 inst.relocs[0].type = inst.operands[0].imm == BFD_RELOC_ARM_PLT32
9195 ? BFD_RELOC_ARM_PLT32
9196 : thumb_mode ? BFD_RELOC_ARM_THM_TLS_CALL : BFD_RELOC_ARM_TLS_CALL;
9199 inst.relocs[0].type = (bfd_reloc_code_real_type) default_reloc;
9200 inst.relocs[0].pc_rel = 1;
9207 if (EF_ARM_EABI_VERSION (meabi_flags) >= EF_ARM_EABI_VER4)
9208 encode_branch (BFD_RELOC_ARM_PCREL_JUMP);
9211 encode_branch (BFD_RELOC_ARM_PCREL_BRANCH);
9218 if (EF_ARM_EABI_VERSION (meabi_flags) >= EF_ARM_EABI_VER4)
9220 if (inst.cond == COND_ALWAYS)
9221 encode_branch (BFD_RELOC_ARM_PCREL_CALL);
9223 encode_branch (BFD_RELOC_ARM_PCREL_JUMP);
9227 encode_branch (BFD_RELOC_ARM_PCREL_BRANCH);
9230 /* ARM V5 branch-link-exchange instruction (argument parse)
9231 BLX <target_addr> ie BLX(1)
9232 BLX{<condition>} <Rm> ie BLX(2)
9233 Unfortunately, there are two different opcodes for this mnemonic.
9234 So, the insns[].value is not used, and the code here zaps values
9235 into inst.instruction.
9236 Also, the <target_addr> can be 25 bits, hence has its own reloc. */
9241 if (inst.operands[0].isreg)
9243 /* Arg is a register; the opcode provided by insns[] is correct.
9244 It is not illegal to do "blx pc", just useless. */
9245 if (inst.operands[0].reg == REG_PC)
9246 as_tsktsk (_("use of r15 in blx in ARM mode is not really useful"));
9248 inst.instruction |= inst.operands[0].reg;
9252 /* Arg is an address; this instruction cannot be executed
9253 conditionally, and the opcode must be adjusted.
9254 We retain the BFD_RELOC_ARM_PCREL_BLX till the very end
9255 where we generate out a BFD_RELOC_ARM_PCREL_CALL instead. */
9256 constraint (inst.cond != COND_ALWAYS, BAD_COND);
9257 inst.instruction = 0xfa000000;
9258 encode_branch (BFD_RELOC_ARM_PCREL_BLX);
9265 bfd_boolean want_reloc;
9267 if (inst.operands[0].reg == REG_PC)
9268 as_tsktsk (_("use of r15 in bx in ARM mode is not really useful"));
9270 inst.instruction |= inst.operands[0].reg;
9271 /* Output R_ARM_V4BX relocations if is an EABI object that looks like
9272 it is for ARMv4t or earlier. */
9273 want_reloc = !ARM_CPU_HAS_FEATURE (selected_cpu, arm_ext_v5);
9274 if (!ARM_FEATURE_ZERO (selected_object_arch)
9275 && !ARM_CPU_HAS_FEATURE (selected_object_arch, arm_ext_v5))
9279 if (EF_ARM_EABI_VERSION (meabi_flags) < EF_ARM_EABI_VER4)
9284 inst.relocs[0].type = BFD_RELOC_ARM_V4BX;
9288 /* ARM v5TEJ. Jump to Jazelle code. */
9293 if (inst.operands[0].reg == REG_PC)
9294 as_tsktsk (_("use of r15 in bxj is not really useful"));
9296 inst.instruction |= inst.operands[0].reg;
9299 /* Co-processor data operation:
9300 CDP{cond} <coproc>, <opcode_1>, <CRd>, <CRn>, <CRm>{, <opcode_2>}
9301 CDP2 <coproc>, <opcode_1>, <CRd>, <CRn>, <CRm>{, <opcode_2>} */
9305 inst.instruction |= inst.operands[0].reg << 8;
9306 inst.instruction |= inst.operands[1].imm << 20;
9307 inst.instruction |= inst.operands[2].reg << 12;
9308 inst.instruction |= inst.operands[3].reg << 16;
9309 inst.instruction |= inst.operands[4].reg;
9310 inst.instruction |= inst.operands[5].imm << 5;
9316 inst.instruction |= inst.operands[0].reg << 16;
9317 encode_arm_shifter_operand (1);
9320 /* Transfer between coprocessor and ARM registers.
9321 MRC{cond} <coproc>, <opcode_1>, <Rd>, <CRn>, <CRm>{, <opcode_2>}
9326 No special properties. */
9328 struct deprecated_coproc_regs_s
9335 arm_feature_set deprecated;
9336 arm_feature_set obsoleted;
9337 const char *dep_msg;
9338 const char *obs_msg;
9341 #define DEPR_ACCESS_V8 \
9342 N_("This coprocessor register access is deprecated in ARMv8")
9344 /* Table of all deprecated coprocessor registers. */
9345 static struct deprecated_coproc_regs_s deprecated_coproc_regs[] =
9347 {15, 0, 7, 10, 5, /* CP15DMB. */
9348 ARM_FEATURE_CORE_LOW (ARM_EXT_V8), ARM_ARCH_NONE,
9349 DEPR_ACCESS_V8, NULL},
9350 {15, 0, 7, 10, 4, /* CP15DSB. */
9351 ARM_FEATURE_CORE_LOW (ARM_EXT_V8), ARM_ARCH_NONE,
9352 DEPR_ACCESS_V8, NULL},
9353 {15, 0, 7, 5, 4, /* CP15ISB. */
9354 ARM_FEATURE_CORE_LOW (ARM_EXT_V8), ARM_ARCH_NONE,
9355 DEPR_ACCESS_V8, NULL},
9356 {14, 6, 1, 0, 0, /* TEEHBR. */
9357 ARM_FEATURE_CORE_LOW (ARM_EXT_V8), ARM_ARCH_NONE,
9358 DEPR_ACCESS_V8, NULL},
9359 {14, 6, 0, 0, 0, /* TEECR. */
9360 ARM_FEATURE_CORE_LOW (ARM_EXT_V8), ARM_ARCH_NONE,
9361 DEPR_ACCESS_V8, NULL},
9364 #undef DEPR_ACCESS_V8
9366 static const size_t deprecated_coproc_reg_count =
9367 sizeof (deprecated_coproc_regs) / sizeof (deprecated_coproc_regs[0]);
9375 Rd = inst.operands[2].reg;
9378 if (inst.instruction == 0xee000010
9379 || inst.instruction == 0xfe000010)
9381 reject_bad_reg (Rd);
9382 else if (!ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v8))
9384 constraint (Rd == REG_SP, BAD_SP);
9389 if (inst.instruction == 0xe000010)
9390 constraint (Rd == REG_PC, BAD_PC);
9393 for (i = 0; i < deprecated_coproc_reg_count; ++i)
9395 const struct deprecated_coproc_regs_s *r =
9396 deprecated_coproc_regs + i;
9398 if (inst.operands[0].reg == r->cp
9399 && inst.operands[1].imm == r->opc1
9400 && inst.operands[3].reg == r->crn
9401 && inst.operands[4].reg == r->crm
9402 && inst.operands[5].imm == r->opc2)
9404 if (! ARM_CPU_IS_ANY (cpu_variant)
9405 && warn_on_deprecated
9406 && ARM_CPU_HAS_FEATURE (cpu_variant, r->deprecated))
9407 as_tsktsk ("%s", r->dep_msg);
9411 inst.instruction |= inst.operands[0].reg << 8;
9412 inst.instruction |= inst.operands[1].imm << 21;
9413 inst.instruction |= Rd << 12;
9414 inst.instruction |= inst.operands[3].reg << 16;
9415 inst.instruction |= inst.operands[4].reg;
9416 inst.instruction |= inst.operands[5].imm << 5;
9419 /* Transfer between coprocessor register and pair of ARM registers.
9420 MCRR{cond} <coproc>, <opcode>, <Rd>, <Rn>, <CRm>.
9425 Two XScale instructions are special cases of these:
9427 MAR{cond} acc0, <RdLo>, <RdHi> == MCRR{cond} p0, #0, <RdLo>, <RdHi>, c0
9428 MRA{cond} acc0, <RdLo>, <RdHi> == MRRC{cond} p0, #0, <RdLo>, <RdHi>, c0
9430 Result unpredictable if Rd or Rn is R15. */
9437 Rd = inst.operands[2].reg;
9438 Rn = inst.operands[3].reg;
9442 reject_bad_reg (Rd);
9443 reject_bad_reg (Rn);
9447 constraint (Rd == REG_PC, BAD_PC);
9448 constraint (Rn == REG_PC, BAD_PC);
9451 /* Only check the MRRC{2} variants. */
9452 if ((inst.instruction & 0x0FF00000) == 0x0C500000)
9454 /* If Rd == Rn, error that the operation is
9455 unpredictable (example MRRC p3,#1,r1,r1,c4). */
9456 constraint (Rd == Rn, BAD_OVERLAP);
9459 inst.instruction |= inst.operands[0].reg << 8;
9460 inst.instruction |= inst.operands[1].imm << 4;
9461 inst.instruction |= Rd << 12;
9462 inst.instruction |= Rn << 16;
9463 inst.instruction |= inst.operands[4].reg;
9469 inst.instruction |= inst.operands[0].imm << 6;
9470 if (inst.operands[1].present)
9472 inst.instruction |= CPSI_MMOD;
9473 inst.instruction |= inst.operands[1].imm;
9480 inst.instruction |= inst.operands[0].imm;
9486 unsigned Rd, Rn, Rm;
9488 Rd = inst.operands[0].reg;
9489 Rn = (inst.operands[1].present
9490 ? inst.operands[1].reg : Rd);
9491 Rm = inst.operands[2].reg;
9493 constraint ((Rd == REG_PC), BAD_PC);
9494 constraint ((Rn == REG_PC), BAD_PC);
9495 constraint ((Rm == REG_PC), BAD_PC);
9497 inst.instruction |= Rd << 16;
9498 inst.instruction |= Rn << 0;
9499 inst.instruction |= Rm << 8;
9505 /* There is no IT instruction in ARM mode. We
9506 process it to do the validation as if in
9507 thumb mode, just in case the code gets
9508 assembled for thumb using the unified syntax. */
9513 set_pred_insn_type (IT_INSN);
9514 now_pred.mask = (inst.instruction & 0xf) | 0x10;
9515 now_pred.cc = inst.operands[0].imm;
9519 /* If there is only one register in the register list,
9520 then return its register number. Otherwise return -1. */
9522 only_one_reg_in_list (int range)
9524 int i = ffs (range) - 1;
9525 return (i > 15 || range != (1 << i)) ? -1 : i;
9529 encode_ldmstm(int from_push_pop_mnem)
9531 int base_reg = inst.operands[0].reg;
9532 int range = inst.operands[1].imm;
9535 inst.instruction |= base_reg << 16;
9536 inst.instruction |= range;
9538 if (inst.operands[1].writeback)
9539 inst.instruction |= LDM_TYPE_2_OR_3;
9541 if (inst.operands[0].writeback)
9543 inst.instruction |= WRITE_BACK;
9544 /* Check for unpredictable uses of writeback. */
9545 if (inst.instruction & LOAD_BIT)
9547 /* Not allowed in LDM type 2. */
9548 if ((inst.instruction & LDM_TYPE_2_OR_3)
9549 && ((range & (1 << REG_PC)) == 0))
9550 as_warn (_("writeback of base register is UNPREDICTABLE"));
9551 /* Only allowed if base reg not in list for other types. */
9552 else if (range & (1 << base_reg))
9553 as_warn (_("writeback of base register when in register list is UNPREDICTABLE"));
9557 /* Not allowed for type 2. */
9558 if (inst.instruction & LDM_TYPE_2_OR_3)
9559 as_warn (_("writeback of base register is UNPREDICTABLE"));
9560 /* Only allowed if base reg not in list, or first in list. */
9561 else if ((range & (1 << base_reg))
9562 && (range & ((1 << base_reg) - 1)))
9563 as_warn (_("if writeback register is in list, it must be the lowest reg in the list"));
9567 /* If PUSH/POP has only one register, then use the A2 encoding. */
9568 one_reg = only_one_reg_in_list (range);
9569 if (from_push_pop_mnem && one_reg >= 0)
9571 int is_push = (inst.instruction & A_PUSH_POP_OP_MASK) == A1_OPCODE_PUSH;
9573 if (is_push && one_reg == 13 /* SP */)
9574 /* PR 22483: The A2 encoding cannot be used when
9575 pushing the stack pointer as this is UNPREDICTABLE. */
9578 inst.instruction &= A_COND_MASK;
9579 inst.instruction |= is_push ? A2_OPCODE_PUSH : A2_OPCODE_POP;
9580 inst.instruction |= one_reg << 12;
9587 encode_ldmstm (/*from_push_pop_mnem=*/FALSE);
9590 /* ARMv5TE load-consecutive (argument parse)
9599 constraint (inst.operands[0].reg % 2 != 0,
9600 _("first transfer register must be even"));
9601 constraint (inst.operands[1].present
9602 && inst.operands[1].reg != inst.operands[0].reg + 1,
9603 _("can only transfer two consecutive registers"));
9604 constraint (inst.operands[0].reg == REG_LR, _("r14 not allowed here"));
9605 constraint (!inst.operands[2].isreg, _("'[' expected"));
9607 if (!inst.operands[1].present)
9608 inst.operands[1].reg = inst.operands[0].reg + 1;
9610 /* encode_arm_addr_mode_3 will diagnose overlap between the base
9611 register and the first register written; we have to diagnose
9612 overlap between the base and the second register written here. */
9614 if (inst.operands[2].reg == inst.operands[1].reg
9615 && (inst.operands[2].writeback || inst.operands[2].postind))
9616 as_warn (_("base register written back, and overlaps "
9617 "second transfer register"));
9619 if (!(inst.instruction & V4_STR_BIT))
9621 /* For an index-register load, the index register must not overlap the
9622 destination (even if not write-back). */
9623 if (inst.operands[2].immisreg
9624 && ((unsigned) inst.operands[2].imm == inst.operands[0].reg
9625 || (unsigned) inst.operands[2].imm == inst.operands[1].reg))
9626 as_warn (_("index register overlaps transfer register"));
9628 inst.instruction |= inst.operands[0].reg << 12;
9629 encode_arm_addr_mode_3 (2, /*is_t=*/FALSE);
9635 constraint (!inst.operands[1].isreg || !inst.operands[1].preind
9636 || inst.operands[1].postind || inst.operands[1].writeback
9637 || inst.operands[1].immisreg || inst.operands[1].shifted
9638 || inst.operands[1].negative
9639 /* This can arise if the programmer has written
9641 or if they have mistakenly used a register name as the last
9644 It is very difficult to distinguish between these two cases
9645 because "rX" might actually be a label. ie the register
9646 name has been occluded by a symbol of the same name. So we
9647 just generate a general 'bad addressing mode' type error
9648 message and leave it up to the programmer to discover the
9649 true cause and fix their mistake. */
9650 || (inst.operands[1].reg == REG_PC),
9653 constraint (inst.relocs[0].exp.X_op != O_constant
9654 || inst.relocs[0].exp.X_add_number != 0,
9655 _("offset must be zero in ARM encoding"));
9657 constraint ((inst.operands[1].reg == REG_PC), BAD_PC);
9659 inst.instruction |= inst.operands[0].reg << 12;
9660 inst.instruction |= inst.operands[1].reg << 16;
9661 inst.relocs[0].type = BFD_RELOC_UNUSED;
9667 constraint (inst.operands[0].reg % 2 != 0,
9668 _("even register required"));
9669 constraint (inst.operands[1].present
9670 && inst.operands[1].reg != inst.operands[0].reg + 1,
9671 _("can only load two consecutive registers"));
9672 /* If op 1 were present and equal to PC, this function wouldn't
9673 have been called in the first place. */
9674 constraint (inst.operands[0].reg == REG_LR, _("r14 not allowed here"));
9676 inst.instruction |= inst.operands[0].reg << 12;
9677 inst.instruction |= inst.operands[2].reg << 16;
9680 /* In both ARM and thumb state 'ldr pc, #imm' with an immediate
9681 which is not a multiple of four is UNPREDICTABLE. */
9683 check_ldr_r15_aligned (void)
9685 constraint (!(inst.operands[1].immisreg)
9686 && (inst.operands[0].reg == REG_PC
9687 && inst.operands[1].reg == REG_PC
9688 && (inst.relocs[0].exp.X_add_number & 0x3)),
9689 _("ldr to register 15 must be 4-byte aligned"));
9695 inst.instruction |= inst.operands[0].reg << 12;
9696 if (!inst.operands[1].isreg)
9697 if (move_or_literal_pool (0, CONST_ARM, /*mode_3=*/FALSE))
9699 encode_arm_addr_mode_2 (1, /*is_t=*/FALSE);
9700 check_ldr_r15_aligned ();
9706 /* ldrt/strt always use post-indexed addressing. Turn [Rn] into [Rn]! and
9708 if (inst.operands[1].preind)
9710 constraint (inst.relocs[0].exp.X_op != O_constant
9711 || inst.relocs[0].exp.X_add_number != 0,
9712 _("this instruction requires a post-indexed address"));
9714 inst.operands[1].preind = 0;
9715 inst.operands[1].postind = 1;
9716 inst.operands[1].writeback = 1;
9718 inst.instruction |= inst.operands[0].reg << 12;
9719 encode_arm_addr_mode_2 (1, /*is_t=*/TRUE);
9722 /* Halfword and signed-byte load/store operations. */
9727 constraint (inst.operands[0].reg == REG_PC, BAD_PC);
9728 inst.instruction |= inst.operands[0].reg << 12;
9729 if (!inst.operands[1].isreg)
9730 if (move_or_literal_pool (0, CONST_ARM, /*mode_3=*/TRUE))
9732 encode_arm_addr_mode_3 (1, /*is_t=*/FALSE);
9738 /* ldrt/strt always use post-indexed addressing. Turn [Rn] into [Rn]! and
9740 if (inst.operands[1].preind)
9742 constraint (inst.relocs[0].exp.X_op != O_constant
9743 || inst.relocs[0].exp.X_add_number != 0,
9744 _("this instruction requires a post-indexed address"));
9746 inst.operands[1].preind = 0;
9747 inst.operands[1].postind = 1;
9748 inst.operands[1].writeback = 1;
9750 inst.instruction |= inst.operands[0].reg << 12;
9751 encode_arm_addr_mode_3 (1, /*is_t=*/TRUE);
9754 /* Co-processor register load/store.
9755 Format: <LDC|STC>{cond}[L] CP#,CRd,<address> */
9759 inst.instruction |= inst.operands[0].reg << 8;
9760 inst.instruction |= inst.operands[1].reg << 12;
9761 encode_arm_cp_address (2, TRUE, TRUE, 0);
9767 /* This restriction does not apply to mls (nor to mla in v6 or later). */
9768 if (inst.operands[0].reg == inst.operands[1].reg
9769 && !ARM_CPU_HAS_FEATURE (selected_cpu, arm_ext_v6)
9770 && !(inst.instruction & 0x00400000))
9771 as_tsktsk (_("Rd and Rm should be different in mla"));
9773 inst.instruction |= inst.operands[0].reg << 16;
9774 inst.instruction |= inst.operands[1].reg;
9775 inst.instruction |= inst.operands[2].reg << 8;
9776 inst.instruction |= inst.operands[3].reg << 12;
9782 constraint (inst.relocs[0].type >= BFD_RELOC_ARM_THUMB_ALU_ABS_G0_NC
9783 && inst.relocs[0].type <= BFD_RELOC_ARM_THUMB_ALU_ABS_G3_NC ,
9785 inst.instruction |= inst.operands[0].reg << 12;
9786 encode_arm_shifter_operand (1);
9789 /* ARM V6T2 16-bit immediate register load: MOV[WT]{cond} Rd, #<imm16>. */
9796 top = (inst.instruction & 0x00400000) != 0;
9797 constraint (top && inst.relocs[0].type == BFD_RELOC_ARM_MOVW,
9798 _(":lower16: not allowed in this instruction"));
9799 constraint (!top && inst.relocs[0].type == BFD_RELOC_ARM_MOVT,
9800 _(":upper16: not allowed in this instruction"));
9801 inst.instruction |= inst.operands[0].reg << 12;
9802 if (inst.relocs[0].type == BFD_RELOC_UNUSED)
9804 imm = inst.relocs[0].exp.X_add_number;
9805 /* The value is in two pieces: 0:11, 16:19. */
9806 inst.instruction |= (imm & 0x00000fff);
9807 inst.instruction |= (imm & 0x0000f000) << 4;
9812 do_vfp_nsyn_mrs (void)
9814 if (inst.operands[0].isvec)
9816 if (inst.operands[1].reg != 1)
9817 first_error (_("operand 1 must be FPSCR"));
9818 memset (&inst.operands[0], '\0', sizeof (inst.operands[0]));
9819 memset (&inst.operands[1], '\0', sizeof (inst.operands[1]));
9820 do_vfp_nsyn_opcode ("fmstat");
9822 else if (inst.operands[1].isvec)
9823 do_vfp_nsyn_opcode ("fmrx");
9831 do_vfp_nsyn_msr (void)
9833 if (inst.operands[0].isvec)
9834 do_vfp_nsyn_opcode ("fmxr");
9844 unsigned Rt = inst.operands[0].reg;
9846 if (thumb_mode && Rt == REG_SP)
9848 inst.error = BAD_SP;
9852 switch (inst.operands[1].reg)
9854 /* MVFR2 is only valid for Armv8-A. */
9856 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, fpu_vfp_ext_armv8),
9860 /* Check for new Armv8.1-M Mainline changes to <spec_reg>. */
9861 case 1: /* fpscr. */
9862 constraint (!(ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext)
9863 || ARM_CPU_HAS_FEATURE (cpu_variant, fpu_vfp_ext_v1xd)),
9867 case 14: /* fpcxt_ns. */
9868 case 15: /* fpcxt_s. */
9869 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v8_1m_main),
9870 _("selected processor does not support instruction"));
9873 case 2: /* fpscr_nzcvqc. */
9876 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v8_1m_main)
9877 || (!ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext)
9878 && !ARM_CPU_HAS_FEATURE (cpu_variant, fpu_vfp_ext_v1xd)),
9879 _("selected processor does not support instruction"));
9880 if (inst.operands[0].reg != 2
9881 && !ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext))
9882 as_warn (_("accessing MVE system register without MVE is UNPREDICTABLE"));
9889 /* APSR_ sets isvec. All other refs to PC are illegal. */
9890 if (!inst.operands[0].isvec && Rt == REG_PC)
9892 inst.error = BAD_PC;
9896 /* If we get through parsing the register name, we just insert the number
9897 generated into the instruction without further validation. */
9898 inst.instruction |= (inst.operands[1].reg << 16);
9899 inst.instruction |= (Rt << 12);
9905 unsigned Rt = inst.operands[1].reg;
9908 reject_bad_reg (Rt);
9909 else if (Rt == REG_PC)
9911 inst.error = BAD_PC;
9915 switch (inst.operands[0].reg)
9917 /* MVFR2 is only valid for Armv8-A. */
9919 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, fpu_vfp_ext_armv8),
9923 /* Check for new Armv8.1-M Mainline changes to <spec_reg>. */
9925 constraint (!(ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext)
9926 || ARM_CPU_HAS_FEATURE (cpu_variant, fpu_vfp_ext_v1xd)),
9930 case 14: /* fpcxt_ns. */
9931 case 15: /* fpcxt_s. */
9932 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v8_1m_main),
9933 _("selected processor does not support instruction"));
9936 case 2: /* fpscr_nzcvqc. */
9939 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v8_1m_main)
9940 || (!ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext)
9941 && !ARM_CPU_HAS_FEATURE (cpu_variant, fpu_vfp_ext_v1xd)),
9942 _("selected processor does not support instruction"));
9943 if (inst.operands[0].reg != 2
9944 && !ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext))
9945 as_warn (_("accessing MVE system register without MVE is UNPREDICTABLE"));
9952 /* If we get through parsing the register name, we just insert the number
9953 generated into the instruction without further validation. */
9954 inst.instruction |= (inst.operands[0].reg << 16);
9955 inst.instruction |= (Rt << 12);
9963 if (do_vfp_nsyn_mrs () == SUCCESS)
9966 constraint (inst.operands[0].reg == REG_PC, BAD_PC);
9967 inst.instruction |= inst.operands[0].reg << 12;
9969 if (inst.operands[1].isreg)
9971 br = inst.operands[1].reg;
9972 if (((br & 0x200) == 0) && ((br & 0xf0000) != 0xf0000))
9973 as_bad (_("bad register for mrs"));
9977 /* mrs only accepts CPSR/SPSR/CPSR_all/SPSR_all. */
9978 constraint ((inst.operands[1].imm & (PSR_c|PSR_x|PSR_s|PSR_f))
9980 _("'APSR', 'CPSR' or 'SPSR' expected"));
9981 br = (15<<16) | (inst.operands[1].imm & SPSR_BIT);
9984 inst.instruction |= br;
9987 /* Two possible forms:
9988 "{C|S}PSR_<field>, Rm",
9989 "{C|S}PSR_f, #expression". */
9994 if (do_vfp_nsyn_msr () == SUCCESS)
9997 inst.instruction |= inst.operands[0].imm;
9998 if (inst.operands[1].isreg)
9999 inst.instruction |= inst.operands[1].reg;
10002 inst.instruction |= INST_IMMEDIATE;
10003 inst.relocs[0].type = BFD_RELOC_ARM_IMMEDIATE;
10004 inst.relocs[0].pc_rel = 0;
10011 constraint (inst.operands[2].reg == REG_PC, BAD_PC);
10013 if (!inst.operands[2].present)
10014 inst.operands[2].reg = inst.operands[0].reg;
10015 inst.instruction |= inst.operands[0].reg << 16;
10016 inst.instruction |= inst.operands[1].reg;
10017 inst.instruction |= inst.operands[2].reg << 8;
10019 if (inst.operands[0].reg == inst.operands[1].reg
10020 && !ARM_CPU_HAS_FEATURE (selected_cpu, arm_ext_v6))
10021 as_tsktsk (_("Rd and Rm should be different in mul"));
10024 /* Long Multiply Parser
10025 UMULL RdLo, RdHi, Rm, Rs
10026 SMULL RdLo, RdHi, Rm, Rs
10027 UMLAL RdLo, RdHi, Rm, Rs
10028 SMLAL RdLo, RdHi, Rm, Rs. */
10033 inst.instruction |= inst.operands[0].reg << 12;
10034 inst.instruction |= inst.operands[1].reg << 16;
10035 inst.instruction |= inst.operands[2].reg;
10036 inst.instruction |= inst.operands[3].reg << 8;
10038 /* rdhi and rdlo must be different. */
10039 if (inst.operands[0].reg == inst.operands[1].reg)
10040 as_tsktsk (_("rdhi and rdlo must be different"));
10042 /* rdhi, rdlo and rm must all be different before armv6. */
10043 if ((inst.operands[0].reg == inst.operands[2].reg
10044 || inst.operands[1].reg == inst.operands[2].reg)
10045 && !ARM_CPU_HAS_FEATURE (selected_cpu, arm_ext_v6))
10046 as_tsktsk (_("rdhi, rdlo and rm must all be different"));
10052 if (inst.operands[0].present
10053 || ARM_CPU_HAS_FEATURE (selected_cpu, arm_ext_v6k))
10055 /* Architectural NOP hints are CPSR sets with no bits selected. */
10056 inst.instruction &= 0xf0000000;
10057 inst.instruction |= 0x0320f000;
10058 if (inst.operands[0].present)
10059 inst.instruction |= inst.operands[0].imm;
10063 /* ARM V6 Pack Halfword Bottom Top instruction (argument parse).
10064 PKHBT {<cond>} <Rd>, <Rn>, <Rm> {, LSL #<shift_imm>}
10065 Condition defaults to COND_ALWAYS.
10066 Error if Rd, Rn or Rm are R15. */
10071 inst.instruction |= inst.operands[0].reg << 12;
10072 inst.instruction |= inst.operands[1].reg << 16;
10073 inst.instruction |= inst.operands[2].reg;
10074 if (inst.operands[3].present)
10075 encode_arm_shift (3);
10078 /* ARM V6 PKHTB (Argument Parse). */
10083 if (!inst.operands[3].present)
10085 /* If the shift specifier is omitted, turn the instruction
10086 into pkhbt rd, rm, rn. */
10087 inst.instruction &= 0xfff00010;
10088 inst.instruction |= inst.operands[0].reg << 12;
10089 inst.instruction |= inst.operands[1].reg;
10090 inst.instruction |= inst.operands[2].reg << 16;
10094 inst.instruction |= inst.operands[0].reg << 12;
10095 inst.instruction |= inst.operands[1].reg << 16;
10096 inst.instruction |= inst.operands[2].reg;
10097 encode_arm_shift (3);
10101 /* ARMv5TE: Preload-Cache
10102 MP Extensions: Preload for write
10106 Syntactically, like LDR with B=1, W=0, L=1. */
10111 constraint (!inst.operands[0].isreg,
10112 _("'[' expected after PLD mnemonic"));
10113 constraint (inst.operands[0].postind,
10114 _("post-indexed expression used in preload instruction"));
10115 constraint (inst.operands[0].writeback,
10116 _("writeback used in preload instruction"));
10117 constraint (!inst.operands[0].preind,
10118 _("unindexed addressing used in preload instruction"));
10119 encode_arm_addr_mode_2 (0, /*is_t=*/FALSE);
10122 /* ARMv7: PLI <addr_mode> */
10126 constraint (!inst.operands[0].isreg,
10127 _("'[' expected after PLI mnemonic"));
10128 constraint (inst.operands[0].postind,
10129 _("post-indexed expression used in preload instruction"));
10130 constraint (inst.operands[0].writeback,
10131 _("writeback used in preload instruction"));
10132 constraint (!inst.operands[0].preind,
10133 _("unindexed addressing used in preload instruction"));
10134 encode_arm_addr_mode_2 (0, /*is_t=*/FALSE);
10135 inst.instruction &= ~PRE_INDEX;
10141 constraint (inst.operands[0].writeback,
10142 _("push/pop do not support {reglist}^"));
10143 inst.operands[1] = inst.operands[0];
10144 memset (&inst.operands[0], 0, sizeof inst.operands[0]);
10145 inst.operands[0].isreg = 1;
10146 inst.operands[0].writeback = 1;
10147 inst.operands[0].reg = REG_SP;
10148 encode_ldmstm (/*from_push_pop_mnem=*/TRUE);
10151 /* ARM V6 RFE (Return from Exception) loads the PC and CPSR from the
10152 word at the specified address and the following word
10154 Unconditionally executed.
10155 Error if Rn is R15. */
10160 inst.instruction |= inst.operands[0].reg << 16;
10161 if (inst.operands[0].writeback)
10162 inst.instruction |= WRITE_BACK;
10165 /* ARM V6 ssat (argument parse). */
10170 inst.instruction |= inst.operands[0].reg << 12;
10171 inst.instruction |= (inst.operands[1].imm - 1) << 16;
10172 inst.instruction |= inst.operands[2].reg;
10174 if (inst.operands[3].present)
10175 encode_arm_shift (3);
10178 /* ARM V6 usat (argument parse). */
10183 inst.instruction |= inst.operands[0].reg << 12;
10184 inst.instruction |= inst.operands[1].imm << 16;
10185 inst.instruction |= inst.operands[2].reg;
10187 if (inst.operands[3].present)
10188 encode_arm_shift (3);
10191 /* ARM V6 ssat16 (argument parse). */
10196 inst.instruction |= inst.operands[0].reg << 12;
10197 inst.instruction |= ((inst.operands[1].imm - 1) << 16);
10198 inst.instruction |= inst.operands[2].reg;
10204 inst.instruction |= inst.operands[0].reg << 12;
10205 inst.instruction |= inst.operands[1].imm << 16;
10206 inst.instruction |= inst.operands[2].reg;
10209 /* ARM V6 SETEND (argument parse). Sets the E bit in the CPSR while
10210 preserving the other bits.
10212 setend <endian_specifier>, where <endian_specifier> is either
10218 if (warn_on_deprecated
10219 && ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v8))
10220 as_tsktsk (_("setend use is deprecated for ARMv8"));
10222 if (inst.operands[0].imm)
10223 inst.instruction |= 0x200;
10229 unsigned int Rm = (inst.operands[1].present
10230 ? inst.operands[1].reg
10231 : inst.operands[0].reg);
10233 inst.instruction |= inst.operands[0].reg << 12;
10234 inst.instruction |= Rm;
10235 if (inst.operands[2].isreg) /* Rd, {Rm,} Rs */
10237 inst.instruction |= inst.operands[2].reg << 8;
10238 inst.instruction |= SHIFT_BY_REG;
10239 /* PR 12854: Error on extraneous shifts. */
10240 constraint (inst.operands[2].shifted,
10241 _("extraneous shift as part of operand to shift insn"));
10244 inst.relocs[0].type = BFD_RELOC_ARM_SHIFT_IMM;
10250 inst.relocs[0].type = BFD_RELOC_ARM_SMC;
10251 inst.relocs[0].pc_rel = 0;
10257 inst.relocs[0].type = BFD_RELOC_ARM_HVC;
10258 inst.relocs[0].pc_rel = 0;
10264 inst.relocs[0].type = BFD_RELOC_ARM_SWI;
10265 inst.relocs[0].pc_rel = 0;
10271 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_pan),
10272 _("selected processor does not support SETPAN instruction"));
10274 inst.instruction |= ((inst.operands[0].imm & 1) << 9);
10280 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_pan),
10281 _("selected processor does not support SETPAN instruction"));
10283 inst.instruction |= (inst.operands[0].imm << 3);
10286 /* ARM V5E (El Segundo) signed-multiply-accumulate (argument parse)
10287 SMLAxy{cond} Rd,Rm,Rs,Rn
10288 SMLAWy{cond} Rd,Rm,Rs,Rn
10289 Error if any register is R15. */
10294 inst.instruction |= inst.operands[0].reg << 16;
10295 inst.instruction |= inst.operands[1].reg;
10296 inst.instruction |= inst.operands[2].reg << 8;
10297 inst.instruction |= inst.operands[3].reg << 12;
10300 /* ARM V5E (El Segundo) signed-multiply-accumulate-long (argument parse)
10301 SMLALxy{cond} Rdlo,Rdhi,Rm,Rs
10302 Error if any register is R15.
10303 Warning if Rdlo == Rdhi. */
10308 inst.instruction |= inst.operands[0].reg << 12;
10309 inst.instruction |= inst.operands[1].reg << 16;
10310 inst.instruction |= inst.operands[2].reg;
10311 inst.instruction |= inst.operands[3].reg << 8;
10313 if (inst.operands[0].reg == inst.operands[1].reg)
10314 as_tsktsk (_("rdhi and rdlo must be different"));
10317 /* ARM V5E (El Segundo) signed-multiply (argument parse)
10318 SMULxy{cond} Rd,Rm,Rs
10319 Error if any register is R15. */
10324 inst.instruction |= inst.operands[0].reg << 16;
10325 inst.instruction |= inst.operands[1].reg;
10326 inst.instruction |= inst.operands[2].reg << 8;
10329 /* ARM V6 srs (argument parse). The variable fields in the encoding are
10330 the same for both ARM and Thumb-2. */
10337 if (inst.operands[0].present)
10339 reg = inst.operands[0].reg;
10340 constraint (reg != REG_SP, _("SRS base register must be r13"));
10345 inst.instruction |= reg << 16;
10346 inst.instruction |= inst.operands[1].imm;
10347 if (inst.operands[0].writeback || inst.operands[1].writeback)
10348 inst.instruction |= WRITE_BACK;
10351 /* ARM V6 strex (argument parse). */
10356 constraint (!inst.operands[2].isreg || !inst.operands[2].preind
10357 || inst.operands[2].postind || inst.operands[2].writeback
10358 || inst.operands[2].immisreg || inst.operands[2].shifted
10359 || inst.operands[2].negative
10360 /* See comment in do_ldrex(). */
10361 || (inst.operands[2].reg == REG_PC),
10364 constraint (inst.operands[0].reg == inst.operands[1].reg
10365 || inst.operands[0].reg == inst.operands[2].reg, BAD_OVERLAP);
10367 constraint (inst.relocs[0].exp.X_op != O_constant
10368 || inst.relocs[0].exp.X_add_number != 0,
10369 _("offset must be zero in ARM encoding"));
10371 inst.instruction |= inst.operands[0].reg << 12;
10372 inst.instruction |= inst.operands[1].reg;
10373 inst.instruction |= inst.operands[2].reg << 16;
10374 inst.relocs[0].type = BFD_RELOC_UNUSED;
10378 do_t_strexbh (void)
10380 constraint (!inst.operands[2].isreg || !inst.operands[2].preind
10381 || inst.operands[2].postind || inst.operands[2].writeback
10382 || inst.operands[2].immisreg || inst.operands[2].shifted
10383 || inst.operands[2].negative,
10386 constraint (inst.operands[0].reg == inst.operands[1].reg
10387 || inst.operands[0].reg == inst.operands[2].reg, BAD_OVERLAP);
10395 constraint (inst.operands[1].reg % 2 != 0,
10396 _("even register required"));
10397 constraint (inst.operands[2].present
10398 && inst.operands[2].reg != inst.operands[1].reg + 1,
10399 _("can only store two consecutive registers"));
10400 /* If op 2 were present and equal to PC, this function wouldn't
10401 have been called in the first place. */
10402 constraint (inst.operands[1].reg == REG_LR, _("r14 not allowed here"));
10404 constraint (inst.operands[0].reg == inst.operands[1].reg
10405 || inst.operands[0].reg == inst.operands[1].reg + 1
10406 || inst.operands[0].reg == inst.operands[3].reg,
10409 inst.instruction |= inst.operands[0].reg << 12;
10410 inst.instruction |= inst.operands[1].reg;
10411 inst.instruction |= inst.operands[3].reg << 16;
10418 constraint (inst.operands[0].reg == inst.operands[1].reg
10419 || inst.operands[0].reg == inst.operands[2].reg, BAD_OVERLAP);
10427 constraint (inst.operands[0].reg == inst.operands[1].reg
10428 || inst.operands[0].reg == inst.operands[2].reg, BAD_OVERLAP);
10433 /* ARM V6 SXTAH extracts a 16-bit value from a register, sign
10434 extends it to 32-bits, and adds the result to a value in another
10435 register. You can specify a rotation by 0, 8, 16, or 24 bits
10436 before extracting the 16-bit value.
10437 SXTAH{<cond>} <Rd>, <Rn>, <Rm>{, <rotation>}
10438 Condition defaults to COND_ALWAYS.
10439 Error if any register uses R15. */
10444 inst.instruction |= inst.operands[0].reg << 12;
10445 inst.instruction |= inst.operands[1].reg << 16;
10446 inst.instruction |= inst.operands[2].reg;
10447 inst.instruction |= inst.operands[3].imm << 10;
10452 SXTH {<cond>} <Rd>, <Rm>{, <rotation>}
10453 Condition defaults to COND_ALWAYS.
10454 Error if any register uses R15. */
10459 inst.instruction |= inst.operands[0].reg << 12;
10460 inst.instruction |= inst.operands[1].reg;
10461 inst.instruction |= inst.operands[2].imm << 10;
10464 /* VFP instructions. In a logical order: SP variant first, monad
10465 before dyad, arithmetic then move then load/store. */
10468 do_vfp_sp_monadic (void)
10470 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, fpu_vfp_ext_v1xd)
10471 && !ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext),
10474 encode_arm_vfp_reg (inst.operands[0].reg, VFP_REG_Sd);
10475 encode_arm_vfp_reg (inst.operands[1].reg, VFP_REG_Sm);
10479 do_vfp_sp_dyadic (void)
10481 encode_arm_vfp_reg (inst.operands[0].reg, VFP_REG_Sd);
10482 encode_arm_vfp_reg (inst.operands[1].reg, VFP_REG_Sn);
10483 encode_arm_vfp_reg (inst.operands[2].reg, VFP_REG_Sm);
10487 do_vfp_sp_compare_z (void)
10489 encode_arm_vfp_reg (inst.operands[0].reg, VFP_REG_Sd);
10493 do_vfp_dp_sp_cvt (void)
10495 encode_arm_vfp_reg (inst.operands[0].reg, VFP_REG_Dd);
10496 encode_arm_vfp_reg (inst.operands[1].reg, VFP_REG_Sm);
10500 do_vfp_sp_dp_cvt (void)
10502 encode_arm_vfp_reg (inst.operands[0].reg, VFP_REG_Sd);
10503 encode_arm_vfp_reg (inst.operands[1].reg, VFP_REG_Dm);
10507 do_vfp_reg_from_sp (void)
10509 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, fpu_vfp_ext_v1xd)
10510 && !ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext),
10513 inst.instruction |= inst.operands[0].reg << 12;
10514 encode_arm_vfp_reg (inst.operands[1].reg, VFP_REG_Sn);
10518 do_vfp_reg2_from_sp2 (void)
10520 constraint (inst.operands[2].imm != 2,
10521 _("only two consecutive VFP SP registers allowed here"));
10522 inst.instruction |= inst.operands[0].reg << 12;
10523 inst.instruction |= inst.operands[1].reg << 16;
10524 encode_arm_vfp_reg (inst.operands[2].reg, VFP_REG_Sm);
10528 do_vfp_sp_from_reg (void)
10530 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, fpu_vfp_ext_v1xd)
10531 && !ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext),
10534 encode_arm_vfp_reg (inst.operands[0].reg, VFP_REG_Sn);
10535 inst.instruction |= inst.operands[1].reg << 12;
10539 do_vfp_sp2_from_reg2 (void)
10541 constraint (inst.operands[0].imm != 2,
10542 _("only two consecutive VFP SP registers allowed here"));
10543 encode_arm_vfp_reg (inst.operands[0].reg, VFP_REG_Sm);
10544 inst.instruction |= inst.operands[1].reg << 12;
10545 inst.instruction |= inst.operands[2].reg << 16;
10549 do_vfp_sp_ldst (void)
10551 encode_arm_vfp_reg (inst.operands[0].reg, VFP_REG_Sd);
10552 encode_arm_cp_address (1, FALSE, TRUE, 0);
10556 do_vfp_dp_ldst (void)
10558 encode_arm_vfp_reg (inst.operands[0].reg, VFP_REG_Dd);
10559 encode_arm_cp_address (1, FALSE, TRUE, 0);
10564 vfp_sp_ldstm (enum vfp_ldstm_type ldstm_type)
10566 if (inst.operands[0].writeback)
10567 inst.instruction |= WRITE_BACK;
10569 constraint (ldstm_type != VFP_LDSTMIA,
10570 _("this addressing mode requires base-register writeback"));
10571 inst.instruction |= inst.operands[0].reg << 16;
10572 encode_arm_vfp_reg (inst.operands[1].reg, VFP_REG_Sd);
10573 inst.instruction |= inst.operands[1].imm;
10577 vfp_dp_ldstm (enum vfp_ldstm_type ldstm_type)
10581 if (inst.operands[0].writeback)
10582 inst.instruction |= WRITE_BACK;
10584 constraint (ldstm_type != VFP_LDSTMIA && ldstm_type != VFP_LDSTMIAX,
10585 _("this addressing mode requires base-register writeback"));
10587 inst.instruction |= inst.operands[0].reg << 16;
10588 encode_arm_vfp_reg (inst.operands[1].reg, VFP_REG_Dd);
10590 count = inst.operands[1].imm << 1;
10591 if (ldstm_type == VFP_LDSTMIAX || ldstm_type == VFP_LDSTMDBX)
10594 inst.instruction |= count;
10598 do_vfp_sp_ldstmia (void)
10600 vfp_sp_ldstm (VFP_LDSTMIA);
10604 do_vfp_sp_ldstmdb (void)
10606 vfp_sp_ldstm (VFP_LDSTMDB);
10610 do_vfp_dp_ldstmia (void)
10612 vfp_dp_ldstm (VFP_LDSTMIA);
10616 do_vfp_dp_ldstmdb (void)
10618 vfp_dp_ldstm (VFP_LDSTMDB);
10622 do_vfp_xp_ldstmia (void)
10624 vfp_dp_ldstm (VFP_LDSTMIAX);
10628 do_vfp_xp_ldstmdb (void)
10630 vfp_dp_ldstm (VFP_LDSTMDBX);
10634 do_vfp_dp_rd_rm (void)
10636 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, fpu_vfp_ext_v1)
10637 && !ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext),
10640 encode_arm_vfp_reg (inst.operands[0].reg, VFP_REG_Dd);
10641 encode_arm_vfp_reg (inst.operands[1].reg, VFP_REG_Dm);
10645 do_vfp_dp_rn_rd (void)
10647 encode_arm_vfp_reg (inst.operands[0].reg, VFP_REG_Dn);
10648 encode_arm_vfp_reg (inst.operands[1].reg, VFP_REG_Dd);
10652 do_vfp_dp_rd_rn (void)
10654 encode_arm_vfp_reg (inst.operands[0].reg, VFP_REG_Dd);
10655 encode_arm_vfp_reg (inst.operands[1].reg, VFP_REG_Dn);
10659 do_vfp_dp_rd_rn_rm (void)
10661 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, fpu_vfp_ext_v2)
10662 && !ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext),
10665 encode_arm_vfp_reg (inst.operands[0].reg, VFP_REG_Dd);
10666 encode_arm_vfp_reg (inst.operands[1].reg, VFP_REG_Dn);
10667 encode_arm_vfp_reg (inst.operands[2].reg, VFP_REG_Dm);
10671 do_vfp_dp_rd (void)
10673 encode_arm_vfp_reg (inst.operands[0].reg, VFP_REG_Dd);
10677 do_vfp_dp_rm_rd_rn (void)
10679 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, fpu_vfp_ext_v2)
10680 && !ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext),
10683 encode_arm_vfp_reg (inst.operands[0].reg, VFP_REG_Dm);
10684 encode_arm_vfp_reg (inst.operands[1].reg, VFP_REG_Dd);
10685 encode_arm_vfp_reg (inst.operands[2].reg, VFP_REG_Dn);
10688 /* VFPv3 instructions. */
10690 do_vfp_sp_const (void)
10692 encode_arm_vfp_reg (inst.operands[0].reg, VFP_REG_Sd);
10693 inst.instruction |= (inst.operands[1].imm & 0xf0) << 12;
10694 inst.instruction |= (inst.operands[1].imm & 0x0f);
10698 do_vfp_dp_const (void)
10700 encode_arm_vfp_reg (inst.operands[0].reg, VFP_REG_Dd);
10701 inst.instruction |= (inst.operands[1].imm & 0xf0) << 12;
10702 inst.instruction |= (inst.operands[1].imm & 0x0f);
10706 vfp_conv (int srcsize)
10708 int immbits = srcsize - inst.operands[1].imm;
10710 if (srcsize == 16 && !(immbits >= 0 && immbits <= srcsize))
10712 /* If srcsize is 16, inst.operands[1].imm must be in the range 0-16.
10713 i.e. immbits must be in range 0 - 16. */
10714 inst.error = _("immediate value out of range, expected range [0, 16]");
10717 else if (srcsize == 32 && !(immbits >= 0 && immbits < srcsize))
10719 /* If srcsize is 32, inst.operands[1].imm must be in the range 1-32.
10720 i.e. immbits must be in range 0 - 31. */
10721 inst.error = _("immediate value out of range, expected range [1, 32]");
10725 inst.instruction |= (immbits & 1) << 5;
10726 inst.instruction |= (immbits >> 1);
10730 do_vfp_sp_conv_16 (void)
10732 encode_arm_vfp_reg (inst.operands[0].reg, VFP_REG_Sd);
10737 do_vfp_dp_conv_16 (void)
10739 encode_arm_vfp_reg (inst.operands[0].reg, VFP_REG_Dd);
10744 do_vfp_sp_conv_32 (void)
10746 encode_arm_vfp_reg (inst.operands[0].reg, VFP_REG_Sd);
10751 do_vfp_dp_conv_32 (void)
10753 encode_arm_vfp_reg (inst.operands[0].reg, VFP_REG_Dd);
10757 /* FPA instructions. Also in a logical order. */
10762 inst.instruction |= inst.operands[0].reg << 16;
10763 inst.instruction |= inst.operands[1].reg;
10767 do_fpa_ldmstm (void)
10769 inst.instruction |= inst.operands[0].reg << 12;
10770 switch (inst.operands[1].imm)
10772 case 1: inst.instruction |= CP_T_X; break;
10773 case 2: inst.instruction |= CP_T_Y; break;
10774 case 3: inst.instruction |= CP_T_Y | CP_T_X; break;
10779 if (inst.instruction & (PRE_INDEX | INDEX_UP))
10781 /* The instruction specified "ea" or "fd", so we can only accept
10782 [Rn]{!}. The instruction does not really support stacking or
10783 unstacking, so we have to emulate these by setting appropriate
10784 bits and offsets. */
10785 constraint (inst.relocs[0].exp.X_op != O_constant
10786 || inst.relocs[0].exp.X_add_number != 0,
10787 _("this instruction does not support indexing"));
10789 if ((inst.instruction & PRE_INDEX) || inst.operands[2].writeback)
10790 inst.relocs[0].exp.X_add_number = 12 * inst.operands[1].imm;
10792 if (!(inst.instruction & INDEX_UP))
10793 inst.relocs[0].exp.X_add_number = -inst.relocs[0].exp.X_add_number;
10795 if (!(inst.instruction & PRE_INDEX) && inst.operands[2].writeback)
10797 inst.operands[2].preind = 0;
10798 inst.operands[2].postind = 1;
10802 encode_arm_cp_address (2, TRUE, TRUE, 0);
10805 /* iWMMXt instructions: strictly in alphabetical order. */
10808 do_iwmmxt_tandorc (void)
10810 constraint (inst.operands[0].reg != REG_PC, _("only r15 allowed here"));
10814 do_iwmmxt_textrc (void)
10816 inst.instruction |= inst.operands[0].reg << 12;
10817 inst.instruction |= inst.operands[1].imm;
10821 do_iwmmxt_textrm (void)
10823 inst.instruction |= inst.operands[0].reg << 12;
10824 inst.instruction |= inst.operands[1].reg << 16;
10825 inst.instruction |= inst.operands[2].imm;
10829 do_iwmmxt_tinsr (void)
10831 inst.instruction |= inst.operands[0].reg << 16;
10832 inst.instruction |= inst.operands[1].reg << 12;
10833 inst.instruction |= inst.operands[2].imm;
10837 do_iwmmxt_tmia (void)
10839 inst.instruction |= inst.operands[0].reg << 5;
10840 inst.instruction |= inst.operands[1].reg;
10841 inst.instruction |= inst.operands[2].reg << 12;
10845 do_iwmmxt_waligni (void)
10847 inst.instruction |= inst.operands[0].reg << 12;
10848 inst.instruction |= inst.operands[1].reg << 16;
10849 inst.instruction |= inst.operands[2].reg;
10850 inst.instruction |= inst.operands[3].imm << 20;
10854 do_iwmmxt_wmerge (void)
10856 inst.instruction |= inst.operands[0].reg << 12;
10857 inst.instruction |= inst.operands[1].reg << 16;
10858 inst.instruction |= inst.operands[2].reg;
10859 inst.instruction |= inst.operands[3].imm << 21;
10863 do_iwmmxt_wmov (void)
10865 /* WMOV rD, rN is an alias for WOR rD, rN, rN. */
10866 inst.instruction |= inst.operands[0].reg << 12;
10867 inst.instruction |= inst.operands[1].reg << 16;
10868 inst.instruction |= inst.operands[1].reg;
10872 do_iwmmxt_wldstbh (void)
10875 inst.instruction |= inst.operands[0].reg << 12;
10877 reloc = BFD_RELOC_ARM_T32_CP_OFF_IMM_S2;
10879 reloc = BFD_RELOC_ARM_CP_OFF_IMM_S2;
10880 encode_arm_cp_address (1, TRUE, FALSE, reloc);
10884 do_iwmmxt_wldstw (void)
10886 /* RIWR_RIWC clears .isreg for a control register. */
10887 if (!inst.operands[0].isreg)
10889 constraint (inst.cond != COND_ALWAYS, BAD_COND);
10890 inst.instruction |= 0xf0000000;
10893 inst.instruction |= inst.operands[0].reg << 12;
10894 encode_arm_cp_address (1, TRUE, TRUE, 0);
10898 do_iwmmxt_wldstd (void)
10900 inst.instruction |= inst.operands[0].reg << 12;
10901 if (ARM_CPU_HAS_FEATURE (cpu_variant, arm_cext_iwmmxt2)
10902 && inst.operands[1].immisreg)
10904 inst.instruction &= ~0x1a000ff;
10905 inst.instruction |= (0xfU << 28);
10906 if (inst.operands[1].preind)
10907 inst.instruction |= PRE_INDEX;
10908 if (!inst.operands[1].negative)
10909 inst.instruction |= INDEX_UP;
10910 if (inst.operands[1].writeback)
10911 inst.instruction |= WRITE_BACK;
10912 inst.instruction |= inst.operands[1].reg << 16;
10913 inst.instruction |= inst.relocs[0].exp.X_add_number << 4;
10914 inst.instruction |= inst.operands[1].imm;
10917 encode_arm_cp_address (1, TRUE, FALSE, 0);
10921 do_iwmmxt_wshufh (void)
10923 inst.instruction |= inst.operands[0].reg << 12;
10924 inst.instruction |= inst.operands[1].reg << 16;
10925 inst.instruction |= ((inst.operands[2].imm & 0xf0) << 16);
10926 inst.instruction |= (inst.operands[2].imm & 0x0f);
10930 do_iwmmxt_wzero (void)
10932 /* WZERO reg is an alias for WANDN reg, reg, reg. */
10933 inst.instruction |= inst.operands[0].reg;
10934 inst.instruction |= inst.operands[0].reg << 12;
10935 inst.instruction |= inst.operands[0].reg << 16;
10939 do_iwmmxt_wrwrwr_or_imm5 (void)
10941 if (inst.operands[2].isreg)
10944 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, arm_cext_iwmmxt2),
10945 _("immediate operand requires iWMMXt2"));
10947 if (inst.operands[2].imm == 0)
10949 switch ((inst.instruction >> 20) & 0xf)
10955 /* w...h wrd, wrn, #0 -> wrorh wrd, wrn, #16. */
10956 inst.operands[2].imm = 16;
10957 inst.instruction = (inst.instruction & 0xff0fffff) | (0x7 << 20);
10963 /* w...w wrd, wrn, #0 -> wrorw wrd, wrn, #32. */
10964 inst.operands[2].imm = 32;
10965 inst.instruction = (inst.instruction & 0xff0fffff) | (0xb << 20);
10972 /* w...d wrd, wrn, #0 -> wor wrd, wrn, wrn. */
10974 wrn = (inst.instruction >> 16) & 0xf;
10975 inst.instruction &= 0xff0fff0f;
10976 inst.instruction |= wrn;
10977 /* Bail out here; the instruction is now assembled. */
10982 /* Map 32 -> 0, etc. */
10983 inst.operands[2].imm &= 0x1f;
10984 inst.instruction |= (0xfU << 28) | ((inst.operands[2].imm & 0x10) << 4) | (inst.operands[2].imm & 0xf);
10988 /* Cirrus Maverick instructions. Simple 2-, 3-, and 4-register
10989 operations first, then control, shift, and load/store. */
10991 /* Insns like "foo X,Y,Z". */
10994 do_mav_triple (void)
10996 inst.instruction |= inst.operands[0].reg << 16;
10997 inst.instruction |= inst.operands[1].reg;
10998 inst.instruction |= inst.operands[2].reg << 12;
11001 /* Insns like "foo W,X,Y,Z".
11002 where W=MVAX[0:3] and X,Y,Z=MVFX[0:15]. */
11007 inst.instruction |= inst.operands[0].reg << 5;
11008 inst.instruction |= inst.operands[1].reg << 12;
11009 inst.instruction |= inst.operands[2].reg << 16;
11010 inst.instruction |= inst.operands[3].reg;
11013 /* cfmvsc32<cond> DSPSC,MVDX[15:0]. */
11015 do_mav_dspsc (void)
11017 inst.instruction |= inst.operands[1].reg << 12;
11020 /* Maverick shift immediate instructions.
11021 cfsh32<cond> MVFX[15:0],MVFX[15:0],Shift[6:0].
11022 cfsh64<cond> MVDX[15:0],MVDX[15:0],Shift[6:0]. */
11025 do_mav_shift (void)
11027 int imm = inst.operands[2].imm;
11029 inst.instruction |= inst.operands[0].reg << 12;
11030 inst.instruction |= inst.operands[1].reg << 16;
11032 /* Bits 0-3 of the insn should have bits 0-3 of the immediate.
11033 Bits 5-7 of the insn should have bits 4-6 of the immediate.
11034 Bit 4 should be 0. */
11035 imm = (imm & 0xf) | ((imm & 0x70) << 1);
11037 inst.instruction |= imm;
11040 /* XScale instructions. Also sorted arithmetic before move. */
11042 /* Xscale multiply-accumulate (argument parse)
11045 MIAxycc acc0,Rm,Rs. */
11050 inst.instruction |= inst.operands[1].reg;
11051 inst.instruction |= inst.operands[2].reg << 12;
11054 /* Xscale move-accumulator-register (argument parse)
11056 MARcc acc0,RdLo,RdHi. */
11061 inst.instruction |= inst.operands[1].reg << 12;
11062 inst.instruction |= inst.operands[2].reg << 16;
11065 /* Xscale move-register-accumulator (argument parse)
11067 MRAcc RdLo,RdHi,acc0. */
11072 constraint (inst.operands[0].reg == inst.operands[1].reg, BAD_OVERLAP);
11073 inst.instruction |= inst.operands[0].reg << 12;
11074 inst.instruction |= inst.operands[1].reg << 16;
11077 /* Encoding functions relevant only to Thumb. */
11079 /* inst.operands[i] is a shifted-register operand; encode
11080 it into inst.instruction in the format used by Thumb32. */
11083 encode_thumb32_shifted_operand (int i)
11085 unsigned int value = inst.relocs[0].exp.X_add_number;
11086 unsigned int shift = inst.operands[i].shift_kind;
11088 constraint (inst.operands[i].immisreg,
11089 _("shift by register not allowed in thumb mode"));
11090 inst.instruction |= inst.operands[i].reg;
11091 if (shift == SHIFT_RRX)
11092 inst.instruction |= SHIFT_ROR << 4;
11095 constraint (inst.relocs[0].exp.X_op != O_constant,
11096 _("expression too complex"));
11098 constraint (value > 32
11099 || (value == 32 && (shift == SHIFT_LSL
11100 || shift == SHIFT_ROR)),
11101 _("shift expression is too large"));
11105 else if (value == 32)
11108 inst.instruction |= shift << 4;
11109 inst.instruction |= (value & 0x1c) << 10;
11110 inst.instruction |= (value & 0x03) << 6;
11115 /* inst.operands[i] was set up by parse_address. Encode it into a
11116 Thumb32 format load or store instruction. Reject forms that cannot
11117 be used with such instructions. If is_t is true, reject forms that
11118 cannot be used with a T instruction; if is_d is true, reject forms
11119 that cannot be used with a D instruction. If it is a store insn,
11120 reject PC in Rn. */
11123 encode_thumb32_addr_mode (int i, bfd_boolean is_t, bfd_boolean is_d)
11125 const bfd_boolean is_pc = (inst.operands[i].reg == REG_PC);
11127 constraint (!inst.operands[i].isreg,
11128 _("Instruction does not support =N addresses"));
11130 inst.instruction |= inst.operands[i].reg << 16;
11131 if (inst.operands[i].immisreg)
11133 constraint (is_pc, BAD_PC_ADDRESSING);
11134 constraint (is_t || is_d, _("cannot use register index with this instruction"));
11135 constraint (inst.operands[i].negative,
11136 _("Thumb does not support negative register indexing"));
11137 constraint (inst.operands[i].postind,
11138 _("Thumb does not support register post-indexing"));
11139 constraint (inst.operands[i].writeback,
11140 _("Thumb does not support register indexing with writeback"));
11141 constraint (inst.operands[i].shifted && inst.operands[i].shift_kind != SHIFT_LSL,
11142 _("Thumb supports only LSL in shifted register indexing"));
11144 inst.instruction |= inst.operands[i].imm;
11145 if (inst.operands[i].shifted)
11147 constraint (inst.relocs[0].exp.X_op != O_constant,
11148 _("expression too complex"));
11149 constraint (inst.relocs[0].exp.X_add_number < 0
11150 || inst.relocs[0].exp.X_add_number > 3,
11151 _("shift out of range"));
11152 inst.instruction |= inst.relocs[0].exp.X_add_number << 4;
11154 inst.relocs[0].type = BFD_RELOC_UNUSED;
11156 else if (inst.operands[i].preind)
11158 constraint (is_pc && inst.operands[i].writeback, BAD_PC_WRITEBACK);
11159 constraint (is_t && inst.operands[i].writeback,
11160 _("cannot use writeback with this instruction"));
11161 constraint (is_pc && ((inst.instruction & THUMB2_LOAD_BIT) == 0),
11162 BAD_PC_ADDRESSING);
11166 inst.instruction |= 0x01000000;
11167 if (inst.operands[i].writeback)
11168 inst.instruction |= 0x00200000;
11172 inst.instruction |= 0x00000c00;
11173 if (inst.operands[i].writeback)
11174 inst.instruction |= 0x00000100;
11176 inst.relocs[0].type = BFD_RELOC_ARM_T32_OFFSET_IMM;
11178 else if (inst.operands[i].postind)
11180 gas_assert (inst.operands[i].writeback);
11181 constraint (is_pc, _("cannot use post-indexing with PC-relative addressing"));
11182 constraint (is_t, _("cannot use post-indexing with this instruction"));
11185 inst.instruction |= 0x00200000;
11187 inst.instruction |= 0x00000900;
11188 inst.relocs[0].type = BFD_RELOC_ARM_T32_OFFSET_IMM;
11190 else /* unindexed - only for coprocessor */
11191 inst.error = _("instruction does not accept unindexed addressing");
11194 /* Table of Thumb instructions which exist in 16- and/or 32-bit
11195 encodings (the latter only in post-V6T2 cores). The index is the
11196 value used in the insns table below. When there is more than one
11197 possible 16-bit encoding for the instruction, this table always
11199 Also contains several pseudo-instructions used during relaxation. */
11200 #define T16_32_TAB \
11201 X(_adc, 4140, eb400000), \
11202 X(_adcs, 4140, eb500000), \
11203 X(_add, 1c00, eb000000), \
11204 X(_adds, 1c00, eb100000), \
11205 X(_addi, 0000, f1000000), \
11206 X(_addis, 0000, f1100000), \
11207 X(_add_pc,000f, f20f0000), \
11208 X(_add_sp,000d, f10d0000), \
11209 X(_adr, 000f, f20f0000), \
11210 X(_and, 4000, ea000000), \
11211 X(_ands, 4000, ea100000), \
11212 X(_asr, 1000, fa40f000), \
11213 X(_asrs, 1000, fa50f000), \
11214 X(_b, e000, f000b000), \
11215 X(_bcond, d000, f0008000), \
11216 X(_bf, 0000, f040e001), \
11217 X(_bfcsel,0000, f000e001), \
11218 X(_bfx, 0000, f060e001), \
11219 X(_bfl, 0000, f000c001), \
11220 X(_bflx, 0000, f070e001), \
11221 X(_bic, 4380, ea200000), \
11222 X(_bics, 4380, ea300000), \
11223 X(_cinc, 0000, ea509000), \
11224 X(_cinv, 0000, ea50a000), \
11225 X(_cmn, 42c0, eb100f00), \
11226 X(_cmp, 2800, ebb00f00), \
11227 X(_cneg, 0000, ea50b000), \
11228 X(_cpsie, b660, f3af8400), \
11229 X(_cpsid, b670, f3af8600), \
11230 X(_cpy, 4600, ea4f0000), \
11231 X(_csel, 0000, ea508000), \
11232 X(_cset, 0000, ea5f900f), \
11233 X(_csetm, 0000, ea5fa00f), \
11234 X(_csinc, 0000, ea509000), \
11235 X(_csinv, 0000, ea50a000), \
11236 X(_csneg, 0000, ea50b000), \
11237 X(_dec_sp,80dd, f1ad0d00), \
11238 X(_dls, 0000, f040e001), \
11239 X(_dlstp, 0000, f000e001), \
11240 X(_eor, 4040, ea800000), \
11241 X(_eors, 4040, ea900000), \
11242 X(_inc_sp,00dd, f10d0d00), \
11243 X(_lctp, 0000, f00fe001), \
11244 X(_ldmia, c800, e8900000), \
11245 X(_ldr, 6800, f8500000), \
11246 X(_ldrb, 7800, f8100000), \
11247 X(_ldrh, 8800, f8300000), \
11248 X(_ldrsb, 5600, f9100000), \
11249 X(_ldrsh, 5e00, f9300000), \
11250 X(_ldr_pc,4800, f85f0000), \
11251 X(_ldr_pc2,4800, f85f0000), \
11252 X(_ldr_sp,9800, f85d0000), \
11253 X(_le, 0000, f00fc001), \
11254 X(_letp, 0000, f01fc001), \
11255 X(_lsl, 0000, fa00f000), \
11256 X(_lsls, 0000, fa10f000), \
11257 X(_lsr, 0800, fa20f000), \
11258 X(_lsrs, 0800, fa30f000), \
11259 X(_mov, 2000, ea4f0000), \
11260 X(_movs, 2000, ea5f0000), \
11261 X(_mul, 4340, fb00f000), \
11262 X(_muls, 4340, ffffffff), /* no 32b muls */ \
11263 X(_mvn, 43c0, ea6f0000), \
11264 X(_mvns, 43c0, ea7f0000), \
11265 X(_neg, 4240, f1c00000), /* rsb #0 */ \
11266 X(_negs, 4240, f1d00000), /* rsbs #0 */ \
11267 X(_orr, 4300, ea400000), \
11268 X(_orrs, 4300, ea500000), \
11269 X(_pop, bc00, e8bd0000), /* ldmia sp!,... */ \
11270 X(_push, b400, e92d0000), /* stmdb sp!,... */ \
11271 X(_rev, ba00, fa90f080), \
11272 X(_rev16, ba40, fa90f090), \
11273 X(_revsh, bac0, fa90f0b0), \
11274 X(_ror, 41c0, fa60f000), \
11275 X(_rors, 41c0, fa70f000), \
11276 X(_sbc, 4180, eb600000), \
11277 X(_sbcs, 4180, eb700000), \
11278 X(_stmia, c000, e8800000), \
11279 X(_str, 6000, f8400000), \
11280 X(_strb, 7000, f8000000), \
11281 X(_strh, 8000, f8200000), \
11282 X(_str_sp,9000, f84d0000), \
11283 X(_sub, 1e00, eba00000), \
11284 X(_subs, 1e00, ebb00000), \
11285 X(_subi, 8000, f1a00000), \
11286 X(_subis, 8000, f1b00000), \
11287 X(_sxtb, b240, fa4ff080), \
11288 X(_sxth, b200, fa0ff080), \
11289 X(_tst, 4200, ea100f00), \
11290 X(_uxtb, b2c0, fa5ff080), \
11291 X(_uxth, b280, fa1ff080), \
11292 X(_nop, bf00, f3af8000), \
11293 X(_yield, bf10, f3af8001), \
11294 X(_wfe, bf20, f3af8002), \
11295 X(_wfi, bf30, f3af8003), \
11296 X(_wls, 0000, f040c001), \
11297 X(_wlstp, 0000, f000c001), \
11298 X(_sev, bf40, f3af8004), \
11299 X(_sevl, bf50, f3af8005), \
11300 X(_udf, de00, f7f0a000)
11302 /* To catch errors in encoding functions, the codes are all offset by
11303 0xF800, putting them in one of the 32-bit prefix ranges, ergo undefined
11304 as 16-bit instructions. */
11305 #define X(a,b,c) T_MNEM##a
11306 enum t16_32_codes { T16_32_OFFSET = 0xF7FF, T16_32_TAB };
11309 #define X(a,b,c) 0x##b
11310 static const unsigned short thumb_op16[] = { T16_32_TAB };
11311 #define THUMB_OP16(n) (thumb_op16[(n) - (T16_32_OFFSET + 1)])
11314 #define X(a,b,c) 0x##c
11315 static const unsigned int thumb_op32[] = { T16_32_TAB };
11316 #define THUMB_OP32(n) (thumb_op32[(n) - (T16_32_OFFSET + 1)])
11317 #define THUMB_SETS_FLAGS(n) (THUMB_OP32 (n) & 0x00100000)
11321 /* Thumb instruction encoders, in alphabetical order. */
11323 /* ADDW or SUBW. */
11326 do_t_add_sub_w (void)
11330 Rd = inst.operands[0].reg;
11331 Rn = inst.operands[1].reg;
11333 /* If Rn is REG_PC, this is ADR; if Rn is REG_SP, then this
11334 is the SP-{plus,minus}-immediate form of the instruction. */
11336 constraint (Rd == REG_PC, BAD_PC);
11338 reject_bad_reg (Rd);
11340 inst.instruction |= (Rn << 16) | (Rd << 8);
11341 inst.relocs[0].type = BFD_RELOC_ARM_T32_IMM12;
11344 /* Parse an add or subtract instruction. We get here with inst.instruction
11345 equaling any of THUMB_OPCODE_add, adds, sub, or subs. */
11348 do_t_add_sub (void)
11352 Rd = inst.operands[0].reg;
11353 Rs = (inst.operands[1].present
11354 ? inst.operands[1].reg /* Rd, Rs, foo */
11355 : inst.operands[0].reg); /* Rd, foo -> Rd, Rd, foo */
11358 set_pred_insn_type_last ();
11360 if (unified_syntax)
11363 bfd_boolean narrow;
11366 flags = (inst.instruction == T_MNEM_adds
11367 || inst.instruction == T_MNEM_subs);
11369 narrow = !in_pred_block ();
11371 narrow = in_pred_block ();
11372 if (!inst.operands[2].isreg)
11376 if (!ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v8))
11377 constraint (Rd == REG_SP && Rs != REG_SP, BAD_SP);
11379 add = (inst.instruction == T_MNEM_add
11380 || inst.instruction == T_MNEM_adds);
11382 if (inst.size_req != 4)
11384 /* Attempt to use a narrow opcode, with relaxation if
11386 if (Rd == REG_SP && Rs == REG_SP && !flags)
11387 opcode = add ? T_MNEM_inc_sp : T_MNEM_dec_sp;
11388 else if (Rd <= 7 && Rs == REG_SP && add && !flags)
11389 opcode = T_MNEM_add_sp;
11390 else if (Rd <= 7 && Rs == REG_PC && add && !flags)
11391 opcode = T_MNEM_add_pc;
11392 else if (Rd <= 7 && Rs <= 7 && narrow)
11395 opcode = add ? T_MNEM_addis : T_MNEM_subis;
11397 opcode = add ? T_MNEM_addi : T_MNEM_subi;
11401 inst.instruction = THUMB_OP16(opcode);
11402 inst.instruction |= (Rd << 4) | Rs;
11403 if (inst.relocs[0].type < BFD_RELOC_ARM_THUMB_ALU_ABS_G0_NC
11404 || (inst.relocs[0].type
11405 > BFD_RELOC_ARM_THUMB_ALU_ABS_G3_NC))
11407 if (inst.size_req == 2)
11408 inst.relocs[0].type = BFD_RELOC_ARM_THUMB_ADD;
11410 inst.relax = opcode;
11414 constraint (inst.size_req == 2, BAD_HIREG);
11416 if (inst.size_req == 4
11417 || (inst.size_req != 2 && !opcode))
11419 constraint ((inst.relocs[0].type
11420 >= BFD_RELOC_ARM_THUMB_ALU_ABS_G0_NC)
11421 && (inst.relocs[0].type
11422 <= BFD_RELOC_ARM_THUMB_ALU_ABS_G3_NC) ,
11423 THUMB1_RELOC_ONLY);
11426 constraint (add, BAD_PC);
11427 constraint (Rs != REG_LR || inst.instruction != T_MNEM_subs,
11428 _("only SUBS PC, LR, #const allowed"));
11429 constraint (inst.relocs[0].exp.X_op != O_constant,
11430 _("expression too complex"));
11431 constraint (inst.relocs[0].exp.X_add_number < 0
11432 || inst.relocs[0].exp.X_add_number > 0xff,
11433 _("immediate value out of range"));
11434 inst.instruction = T2_SUBS_PC_LR
11435 | inst.relocs[0].exp.X_add_number;
11436 inst.relocs[0].type = BFD_RELOC_UNUSED;
11439 else if (Rs == REG_PC)
11441 /* Always use addw/subw. */
11442 inst.instruction = add ? 0xf20f0000 : 0xf2af0000;
11443 inst.relocs[0].type = BFD_RELOC_ARM_T32_IMM12;
11447 inst.instruction = THUMB_OP32 (inst.instruction);
11448 inst.instruction = (inst.instruction & 0xe1ffffff)
11451 inst.relocs[0].type = BFD_RELOC_ARM_T32_IMMEDIATE;
11453 inst.relocs[0].type = BFD_RELOC_ARM_T32_ADD_IMM;
11455 inst.instruction |= Rd << 8;
11456 inst.instruction |= Rs << 16;
11461 unsigned int value = inst.relocs[0].exp.X_add_number;
11462 unsigned int shift = inst.operands[2].shift_kind;
11464 Rn = inst.operands[2].reg;
11465 /* See if we can do this with a 16-bit instruction. */
11466 if (!inst.operands[2].shifted && inst.size_req != 4)
11468 if (Rd > 7 || Rs > 7 || Rn > 7)
11473 inst.instruction = ((inst.instruction == T_MNEM_adds
11474 || inst.instruction == T_MNEM_add)
11476 : T_OPCODE_SUB_R3);
11477 inst.instruction |= Rd | (Rs << 3) | (Rn << 6);
11481 if (inst.instruction == T_MNEM_add && (Rd == Rs || Rd == Rn))
11483 /* Thumb-1 cores (except v6-M) require at least one high
11484 register in a narrow non flag setting add. */
11485 if (Rd > 7 || Rn > 7
11486 || ARM_CPU_HAS_FEATURE (selected_cpu, arm_ext_v6t2)
11487 || ARM_CPU_HAS_FEATURE (selected_cpu, arm_ext_msr))
11494 inst.instruction = T_OPCODE_ADD_HI;
11495 inst.instruction |= (Rd & 8) << 4;
11496 inst.instruction |= (Rd & 7);
11497 inst.instruction |= Rn << 3;
11503 constraint (Rd == REG_PC, BAD_PC);
11504 if (!ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v8))
11505 constraint (Rd == REG_SP && Rs != REG_SP, BAD_SP);
11506 constraint (Rs == REG_PC, BAD_PC);
11507 reject_bad_reg (Rn);
11509 /* If we get here, it can't be done in 16 bits. */
11510 constraint (inst.operands[2].shifted && inst.operands[2].immisreg,
11511 _("shift must be constant"));
11512 inst.instruction = THUMB_OP32 (inst.instruction);
11513 inst.instruction |= Rd << 8;
11514 inst.instruction |= Rs << 16;
11515 constraint (Rd == REG_SP && Rs == REG_SP && value > 3,
11516 _("shift value over 3 not allowed in thumb mode"));
11517 constraint (Rd == REG_SP && Rs == REG_SP && shift != SHIFT_LSL,
11518 _("only LSL shift allowed in thumb mode"));
11519 encode_thumb32_shifted_operand (2);
11524 constraint (inst.instruction == T_MNEM_adds
11525 || inst.instruction == T_MNEM_subs,
11528 if (!inst.operands[2].isreg) /* Rd, Rs, #imm */
11530 constraint ((Rd > 7 && (Rd != REG_SP || Rs != REG_SP))
11531 || (Rs > 7 && Rs != REG_SP && Rs != REG_PC),
11534 inst.instruction = (inst.instruction == T_MNEM_add
11535 ? 0x0000 : 0x8000);
11536 inst.instruction |= (Rd << 4) | Rs;
11537 inst.relocs[0].type = BFD_RELOC_ARM_THUMB_ADD;
11541 Rn = inst.operands[2].reg;
11542 constraint (inst.operands[2].shifted, _("unshifted register required"));
11544 /* We now have Rd, Rs, and Rn set to registers. */
11545 if (Rd > 7 || Rs > 7 || Rn > 7)
11547 /* Can't do this for SUB. */
11548 constraint (inst.instruction == T_MNEM_sub, BAD_HIREG);
11549 inst.instruction = T_OPCODE_ADD_HI;
11550 inst.instruction |= (Rd & 8) << 4;
11551 inst.instruction |= (Rd & 7);
11553 inst.instruction |= Rn << 3;
11555 inst.instruction |= Rs << 3;
11557 constraint (1, _("dest must overlap one source register"));
11561 inst.instruction = (inst.instruction == T_MNEM_add
11562 ? T_OPCODE_ADD_R3 : T_OPCODE_SUB_R3);
11563 inst.instruction |= Rd | (Rs << 3) | (Rn << 6);
11573 Rd = inst.operands[0].reg;
11574 reject_bad_reg (Rd);
11576 if (unified_syntax && inst.size_req == 0 && Rd <= 7)
11578 /* Defer to section relaxation. */
11579 inst.relax = inst.instruction;
11580 inst.instruction = THUMB_OP16 (inst.instruction);
11581 inst.instruction |= Rd << 4;
11583 else if (unified_syntax && inst.size_req != 2)
11585 /* Generate a 32-bit opcode. */
11586 inst.instruction = THUMB_OP32 (inst.instruction);
11587 inst.instruction |= Rd << 8;
11588 inst.relocs[0].type = BFD_RELOC_ARM_T32_ADD_PC12;
11589 inst.relocs[0].pc_rel = 1;
11593 /* Generate a 16-bit opcode. */
11594 inst.instruction = THUMB_OP16 (inst.instruction);
11595 inst.relocs[0].type = BFD_RELOC_ARM_THUMB_ADD;
11596 inst.relocs[0].exp.X_add_number -= 4; /* PC relative adjust. */
11597 inst.relocs[0].pc_rel = 1;
11598 inst.instruction |= Rd << 4;
11601 if (inst.relocs[0].exp.X_op == O_symbol
11602 && inst.relocs[0].exp.X_add_symbol != NULL
11603 && S_IS_DEFINED (inst.relocs[0].exp.X_add_symbol)
11604 && THUMB_IS_FUNC (inst.relocs[0].exp.X_add_symbol))
11605 inst.relocs[0].exp.X_add_number += 1;
11608 /* Arithmetic instructions for which there is just one 16-bit
11609 instruction encoding, and it allows only two low registers.
11610 For maximal compatibility with ARM syntax, we allow three register
11611 operands even when Thumb-32 instructions are not available, as long
11612 as the first two are identical. For instance, both "sbc r0,r1" and
11613 "sbc r0,r0,r1" are allowed. */
11619 Rd = inst.operands[0].reg;
11620 Rs = (inst.operands[1].present
11621 ? inst.operands[1].reg /* Rd, Rs, foo */
11622 : inst.operands[0].reg); /* Rd, foo -> Rd, Rd, foo */
11623 Rn = inst.operands[2].reg;
11625 reject_bad_reg (Rd);
11626 reject_bad_reg (Rs);
11627 if (inst.operands[2].isreg)
11628 reject_bad_reg (Rn);
11630 if (unified_syntax)
11632 if (!inst.operands[2].isreg)
11634 /* For an immediate, we always generate a 32-bit opcode;
11635 section relaxation will shrink it later if possible. */
11636 inst.instruction = THUMB_OP32 (inst.instruction);
11637 inst.instruction = (inst.instruction & 0xe1ffffff) | 0x10000000;
11638 inst.instruction |= Rd << 8;
11639 inst.instruction |= Rs << 16;
11640 inst.relocs[0].type = BFD_RELOC_ARM_T32_IMMEDIATE;
11644 bfd_boolean narrow;
11646 /* See if we can do this with a 16-bit instruction. */
11647 if (THUMB_SETS_FLAGS (inst.instruction))
11648 narrow = !in_pred_block ();
11650 narrow = in_pred_block ();
11652 if (Rd > 7 || Rn > 7 || Rs > 7)
11654 if (inst.operands[2].shifted)
11656 if (inst.size_req == 4)
11662 inst.instruction = THUMB_OP16 (inst.instruction);
11663 inst.instruction |= Rd;
11664 inst.instruction |= Rn << 3;
11668 /* If we get here, it can't be done in 16 bits. */
11669 constraint (inst.operands[2].shifted
11670 && inst.operands[2].immisreg,
11671 _("shift must be constant"));
11672 inst.instruction = THUMB_OP32 (inst.instruction);
11673 inst.instruction |= Rd << 8;
11674 inst.instruction |= Rs << 16;
11675 encode_thumb32_shifted_operand (2);
11680 /* On its face this is a lie - the instruction does set the
11681 flags. However, the only supported mnemonic in this mode
11682 says it doesn't. */
11683 constraint (THUMB_SETS_FLAGS (inst.instruction), BAD_THUMB32);
11685 constraint (!inst.operands[2].isreg || inst.operands[2].shifted,
11686 _("unshifted register required"));
11687 constraint (Rd > 7 || Rs > 7 || Rn > 7, BAD_HIREG);
11688 constraint (Rd != Rs,
11689 _("dest and source1 must be the same register"));
11691 inst.instruction = THUMB_OP16 (inst.instruction);
11692 inst.instruction |= Rd;
11693 inst.instruction |= Rn << 3;
11697 /* Similarly, but for instructions where the arithmetic operation is
11698 commutative, so we can allow either of them to be different from
11699 the destination operand in a 16-bit instruction. For instance, all
11700 three of "adc r0,r1", "adc r0,r0,r1", and "adc r0,r1,r0" are
11707 Rd = inst.operands[0].reg;
11708 Rs = (inst.operands[1].present
11709 ? inst.operands[1].reg /* Rd, Rs, foo */
11710 : inst.operands[0].reg); /* Rd, foo -> Rd, Rd, foo */
11711 Rn = inst.operands[2].reg;
11713 reject_bad_reg (Rd);
11714 reject_bad_reg (Rs);
11715 if (inst.operands[2].isreg)
11716 reject_bad_reg (Rn);
11718 if (unified_syntax)
11720 if (!inst.operands[2].isreg)
11722 /* For an immediate, we always generate a 32-bit opcode;
11723 section relaxation will shrink it later if possible. */
11724 inst.instruction = THUMB_OP32 (inst.instruction);
11725 inst.instruction = (inst.instruction & 0xe1ffffff) | 0x10000000;
11726 inst.instruction |= Rd << 8;
11727 inst.instruction |= Rs << 16;
11728 inst.relocs[0].type = BFD_RELOC_ARM_T32_IMMEDIATE;
11732 bfd_boolean narrow;
11734 /* See if we can do this with a 16-bit instruction. */
11735 if (THUMB_SETS_FLAGS (inst.instruction))
11736 narrow = !in_pred_block ();
11738 narrow = in_pred_block ();
11740 if (Rd > 7 || Rn > 7 || Rs > 7)
11742 if (inst.operands[2].shifted)
11744 if (inst.size_req == 4)
11751 inst.instruction = THUMB_OP16 (inst.instruction);
11752 inst.instruction |= Rd;
11753 inst.instruction |= Rn << 3;
11758 inst.instruction = THUMB_OP16 (inst.instruction);
11759 inst.instruction |= Rd;
11760 inst.instruction |= Rs << 3;
11765 /* If we get here, it can't be done in 16 bits. */
11766 constraint (inst.operands[2].shifted
11767 && inst.operands[2].immisreg,
11768 _("shift must be constant"));
11769 inst.instruction = THUMB_OP32 (inst.instruction);
11770 inst.instruction |= Rd << 8;
11771 inst.instruction |= Rs << 16;
11772 encode_thumb32_shifted_operand (2);
11777 /* On its face this is a lie - the instruction does set the
11778 flags. However, the only supported mnemonic in this mode
11779 says it doesn't. */
11780 constraint (THUMB_SETS_FLAGS (inst.instruction), BAD_THUMB32);
11782 constraint (!inst.operands[2].isreg || inst.operands[2].shifted,
11783 _("unshifted register required"));
11784 constraint (Rd > 7 || Rs > 7 || Rn > 7, BAD_HIREG);
11786 inst.instruction = THUMB_OP16 (inst.instruction);
11787 inst.instruction |= Rd;
11790 inst.instruction |= Rn << 3;
11792 inst.instruction |= Rs << 3;
11794 constraint (1, _("dest must overlap one source register"));
11802 unsigned int msb = inst.operands[1].imm + inst.operands[2].imm;
11803 constraint (msb > 32, _("bit-field extends past end of register"));
11804 /* The instruction encoding stores the LSB and MSB,
11805 not the LSB and width. */
11806 Rd = inst.operands[0].reg;
11807 reject_bad_reg (Rd);
11808 inst.instruction |= Rd << 8;
11809 inst.instruction |= (inst.operands[1].imm & 0x1c) << 10;
11810 inst.instruction |= (inst.operands[1].imm & 0x03) << 6;
11811 inst.instruction |= msb - 1;
11820 Rd = inst.operands[0].reg;
11821 reject_bad_reg (Rd);
11823 /* #0 in second position is alternative syntax for bfc, which is
11824 the same instruction but with REG_PC in the Rm field. */
11825 if (!inst.operands[1].isreg)
11829 Rn = inst.operands[1].reg;
11830 reject_bad_reg (Rn);
11833 msb = inst.operands[2].imm + inst.operands[3].imm;
11834 constraint (msb > 32, _("bit-field extends past end of register"));
11835 /* The instruction encoding stores the LSB and MSB,
11836 not the LSB and width. */
11837 inst.instruction |= Rd << 8;
11838 inst.instruction |= Rn << 16;
11839 inst.instruction |= (inst.operands[2].imm & 0x1c) << 10;
11840 inst.instruction |= (inst.operands[2].imm & 0x03) << 6;
11841 inst.instruction |= msb - 1;
11849 Rd = inst.operands[0].reg;
11850 Rn = inst.operands[1].reg;
11852 reject_bad_reg (Rd);
11853 reject_bad_reg (Rn);
11855 constraint (inst.operands[2].imm + inst.operands[3].imm > 32,
11856 _("bit-field extends past end of register"));
11857 inst.instruction |= Rd << 8;
11858 inst.instruction |= Rn << 16;
11859 inst.instruction |= (inst.operands[2].imm & 0x1c) << 10;
11860 inst.instruction |= (inst.operands[2].imm & 0x03) << 6;
11861 inst.instruction |= inst.operands[3].imm - 1;
11864 /* ARM V5 Thumb BLX (argument parse)
11865 BLX <target_addr> which is BLX(1)
11866 BLX <Rm> which is BLX(2)
11867 Unfortunately, there are two different opcodes for this mnemonic.
11868 So, the insns[].value is not used, and the code here zaps values
11869 into inst.instruction.
11871 ??? How to take advantage of the additional two bits of displacement
11872 available in Thumb32 mode? Need new relocation? */
11877 set_pred_insn_type_last ();
11879 if (inst.operands[0].isreg)
11881 constraint (inst.operands[0].reg == REG_PC, BAD_PC);
11882 /* We have a register, so this is BLX(2). */
11883 inst.instruction |= inst.operands[0].reg << 3;
11887 /* No register. This must be BLX(1). */
11888 inst.instruction = 0xf000e800;
11889 encode_branch (BFD_RELOC_THUMB_PCREL_BLX);
11898 bfd_reloc_code_real_type reloc;
11901 set_pred_insn_type (IF_INSIDE_IT_LAST_INSN);
11903 if (in_pred_block ())
11905 /* Conditional branches inside IT blocks are encoded as unconditional
11907 cond = COND_ALWAYS;
11912 if (cond != COND_ALWAYS)
11913 opcode = T_MNEM_bcond;
11915 opcode = inst.instruction;
11918 && (inst.size_req == 4
11919 || (inst.size_req != 2
11920 && (inst.operands[0].hasreloc
11921 || inst.relocs[0].exp.X_op == O_constant))))
11923 inst.instruction = THUMB_OP32(opcode);
11924 if (cond == COND_ALWAYS)
11925 reloc = BFD_RELOC_THUMB_PCREL_BRANCH25;
11928 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v6t2),
11929 _("selected architecture does not support "
11930 "wide conditional branch instruction"));
11932 gas_assert (cond != 0xF);
11933 inst.instruction |= cond << 22;
11934 reloc = BFD_RELOC_THUMB_PCREL_BRANCH20;
11939 inst.instruction = THUMB_OP16(opcode);
11940 if (cond == COND_ALWAYS)
11941 reloc = BFD_RELOC_THUMB_PCREL_BRANCH12;
11944 inst.instruction |= cond << 8;
11945 reloc = BFD_RELOC_THUMB_PCREL_BRANCH9;
11947 /* Allow section relaxation. */
11948 if (unified_syntax && inst.size_req != 2)
11949 inst.relax = opcode;
11951 inst.relocs[0].type = reloc;
11952 inst.relocs[0].pc_rel = 1;
11955 /* Actually do the work for Thumb state bkpt and hlt. The only difference
11956 between the two is the maximum immediate allowed - which is passed in
11959 do_t_bkpt_hlt1 (int range)
11961 constraint (inst.cond != COND_ALWAYS,
11962 _("instruction is always unconditional"));
11963 if (inst.operands[0].present)
11965 constraint (inst.operands[0].imm > range,
11966 _("immediate value out of range"));
11967 inst.instruction |= inst.operands[0].imm;
11970 set_pred_insn_type (NEUTRAL_IT_INSN);
11976 do_t_bkpt_hlt1 (63);
11982 do_t_bkpt_hlt1 (255);
11986 do_t_branch23 (void)
11988 set_pred_insn_type_last ();
11989 encode_branch (BFD_RELOC_THUMB_PCREL_BRANCH23);
11991 /* md_apply_fix blows up with 'bl foo(PLT)' where foo is defined in
11992 this file. We used to simply ignore the PLT reloc type here --
11993 the branch encoding is now needed to deal with TLSCALL relocs.
11994 So if we see a PLT reloc now, put it back to how it used to be to
11995 keep the preexisting behaviour. */
11996 if (inst.relocs[0].type == BFD_RELOC_ARM_PLT32)
11997 inst.relocs[0].type = BFD_RELOC_THUMB_PCREL_BRANCH23;
11999 #if defined(OBJ_COFF)
12000 /* If the destination of the branch is a defined symbol which does not have
12001 the THUMB_FUNC attribute, then we must be calling a function which has
12002 the (interfacearm) attribute. We look for the Thumb entry point to that
12003 function and change the branch to refer to that function instead. */
12004 if ( inst.relocs[0].exp.X_op == O_symbol
12005 && inst.relocs[0].exp.X_add_symbol != NULL
12006 && S_IS_DEFINED (inst.relocs[0].exp.X_add_symbol)
12007 && ! THUMB_IS_FUNC (inst.relocs[0].exp.X_add_symbol))
12008 inst.relocs[0].exp.X_add_symbol
12009 = find_real_start (inst.relocs[0].exp.X_add_symbol);
12016 set_pred_insn_type_last ();
12017 inst.instruction |= inst.operands[0].reg << 3;
12018 /* ??? FIXME: Should add a hacky reloc here if reg is REG_PC. The reloc
12019 should cause the alignment to be checked once it is known. This is
12020 because BX PC only works if the instruction is word aligned. */
12028 set_pred_insn_type_last ();
12029 Rm = inst.operands[0].reg;
12030 reject_bad_reg (Rm);
12031 inst.instruction |= Rm << 16;
12040 Rd = inst.operands[0].reg;
12041 Rm = inst.operands[1].reg;
12043 reject_bad_reg (Rd);
12044 reject_bad_reg (Rm);
12046 inst.instruction |= Rd << 8;
12047 inst.instruction |= Rm << 16;
12048 inst.instruction |= Rm;
12051 /* For the Armv8.1-M conditional instructions. */
12055 unsigned Rd, Rn, Rm;
12058 constraint (inst.cond != COND_ALWAYS, BAD_COND);
12060 Rd = inst.operands[0].reg;
12061 switch (inst.instruction)
12067 Rn = inst.operands[1].reg;
12068 Rm = inst.operands[2].reg;
12069 cond = inst.operands[3].imm;
12070 constraint (Rn == REG_SP, BAD_SP);
12071 constraint (Rm == REG_SP, BAD_SP);
12077 Rn = inst.operands[1].reg;
12078 cond = inst.operands[2].imm;
12079 /* Invert the last bit to invert the cond. */
12080 cond = TOGGLE_BIT (cond, 0);
12081 constraint (Rn == REG_SP, BAD_SP);
12087 cond = inst.operands[1].imm;
12088 /* Invert the last bit to invert the cond. */
12089 cond = TOGGLE_BIT (cond, 0);
12097 set_pred_insn_type (OUTSIDE_PRED_INSN);
12098 inst.instruction = THUMB_OP32 (inst.instruction);
12099 inst.instruction |= Rd << 8;
12100 inst.instruction |= Rn << 16;
12101 inst.instruction |= Rm;
12102 inst.instruction |= cond << 4;
12108 set_pred_insn_type (OUTSIDE_PRED_INSN);
12114 set_pred_insn_type (OUTSIDE_PRED_INSN);
12115 inst.instruction |= inst.operands[0].imm;
12121 set_pred_insn_type (OUTSIDE_PRED_INSN);
12123 && (inst.operands[1].present || inst.size_req == 4)
12124 && ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v6_notm))
12126 unsigned int imod = (inst.instruction & 0x0030) >> 4;
12127 inst.instruction = 0xf3af8000;
12128 inst.instruction |= imod << 9;
12129 inst.instruction |= inst.operands[0].imm << 5;
12130 if (inst.operands[1].present)
12131 inst.instruction |= 0x100 | inst.operands[1].imm;
12135 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v1)
12136 && (inst.operands[0].imm & 4),
12137 _("selected processor does not support 'A' form "
12138 "of this instruction"));
12139 constraint (inst.operands[1].present || inst.size_req == 4,
12140 _("Thumb does not support the 2-argument "
12141 "form of this instruction"));
12142 inst.instruction |= inst.operands[0].imm;
12146 /* THUMB CPY instruction (argument parse). */
12151 if (inst.size_req == 4)
12153 inst.instruction = THUMB_OP32 (T_MNEM_mov);
12154 inst.instruction |= inst.operands[0].reg << 8;
12155 inst.instruction |= inst.operands[1].reg;
12159 inst.instruction |= (inst.operands[0].reg & 0x8) << 4;
12160 inst.instruction |= (inst.operands[0].reg & 0x7);
12161 inst.instruction |= inst.operands[1].reg << 3;
12168 set_pred_insn_type (OUTSIDE_PRED_INSN);
12169 constraint (inst.operands[0].reg > 7, BAD_HIREG);
12170 inst.instruction |= inst.operands[0].reg;
12171 inst.relocs[0].pc_rel = 1;
12172 inst.relocs[0].type = BFD_RELOC_THUMB_PCREL_BRANCH7;
12178 inst.instruction |= inst.operands[0].imm;
12184 unsigned Rd, Rn, Rm;
12186 Rd = inst.operands[0].reg;
12187 Rn = (inst.operands[1].present
12188 ? inst.operands[1].reg : Rd);
12189 Rm = inst.operands[2].reg;
12191 reject_bad_reg (Rd);
12192 reject_bad_reg (Rn);
12193 reject_bad_reg (Rm);
12195 inst.instruction |= Rd << 8;
12196 inst.instruction |= Rn << 16;
12197 inst.instruction |= Rm;
12203 if (unified_syntax && inst.size_req == 4)
12204 inst.instruction = THUMB_OP32 (inst.instruction);
12206 inst.instruction = THUMB_OP16 (inst.instruction);
12212 unsigned int cond = inst.operands[0].imm;
12214 set_pred_insn_type (IT_INSN);
12215 now_pred.mask = (inst.instruction & 0xf) | 0x10;
12216 now_pred.cc = cond;
12217 now_pred.warn_deprecated = FALSE;
12218 now_pred.type = SCALAR_PRED;
12220 /* If the condition is a negative condition, invert the mask. */
12221 if ((cond & 0x1) == 0x0)
12223 unsigned int mask = inst.instruction & 0x000f;
12225 if ((mask & 0x7) == 0)
12227 /* No conversion needed. */
12228 now_pred.block_length = 1;
12230 else if ((mask & 0x3) == 0)
12233 now_pred.block_length = 2;
12235 else if ((mask & 0x1) == 0)
12238 now_pred.block_length = 3;
12243 now_pred.block_length = 4;
12246 inst.instruction &= 0xfff0;
12247 inst.instruction |= mask;
12250 inst.instruction |= cond << 4;
12253 /* Helper function used for both push/pop and ldm/stm. */
12255 encode_thumb2_multi (bfd_boolean do_io, int base, unsigned mask,
12256 bfd_boolean writeback)
12258 bfd_boolean load, store;
12260 gas_assert (base != -1 || !do_io);
12261 load = do_io && ((inst.instruction & (1 << 20)) != 0);
12262 store = do_io && !load;
12264 if (mask & (1 << 13))
12265 inst.error = _("SP not allowed in register list");
12267 if (do_io && (mask & (1 << base)) != 0
12269 inst.error = _("having the base register in the register list when "
12270 "using write back is UNPREDICTABLE");
12274 if (mask & (1 << 15))
12276 if (mask & (1 << 14))
12277 inst.error = _("LR and PC should not both be in register list");
12279 set_pred_insn_type_last ();
12284 if (mask & (1 << 15))
12285 inst.error = _("PC not allowed in register list");
12288 if (do_io && ((mask & (mask - 1)) == 0))
12290 /* Single register transfers implemented as str/ldr. */
12293 if (inst.instruction & (1 << 23))
12294 inst.instruction = 0x00000b04; /* ia! -> [base], #4 */
12296 inst.instruction = 0x00000d04; /* db! -> [base, #-4]! */
12300 if (inst.instruction & (1 << 23))
12301 inst.instruction = 0x00800000; /* ia -> [base] */
12303 inst.instruction = 0x00000c04; /* db -> [base, #-4] */
12306 inst.instruction |= 0xf8400000;
12308 inst.instruction |= 0x00100000;
12310 mask = ffs (mask) - 1;
12313 else if (writeback)
12314 inst.instruction |= WRITE_BACK;
12316 inst.instruction |= mask;
12318 inst.instruction |= base << 16;
12324 /* This really doesn't seem worth it. */
12325 constraint (inst.relocs[0].type != BFD_RELOC_UNUSED,
12326 _("expression too complex"));
12327 constraint (inst.operands[1].writeback,
12328 _("Thumb load/store multiple does not support {reglist}^"));
12330 if (unified_syntax)
12332 bfd_boolean narrow;
12336 /* See if we can use a 16-bit instruction. */
12337 if (inst.instruction < 0xffff /* not ldmdb/stmdb */
12338 && inst.size_req != 4
12339 && !(inst.operands[1].imm & ~0xff))
12341 mask = 1 << inst.operands[0].reg;
12343 if (inst.operands[0].reg <= 7)
12345 if (inst.instruction == T_MNEM_stmia
12346 ? inst.operands[0].writeback
12347 : (inst.operands[0].writeback
12348 == !(inst.operands[1].imm & mask)))
12350 if (inst.instruction == T_MNEM_stmia
12351 && (inst.operands[1].imm & mask)
12352 && (inst.operands[1].imm & (mask - 1)))
12353 as_warn (_("value stored for r%d is UNKNOWN"),
12354 inst.operands[0].reg);
12356 inst.instruction = THUMB_OP16 (inst.instruction);
12357 inst.instruction |= inst.operands[0].reg << 8;
12358 inst.instruction |= inst.operands[1].imm;
12361 else if ((inst.operands[1].imm & (inst.operands[1].imm-1)) == 0)
12363 /* This means 1 register in reg list one of 3 situations:
12364 1. Instruction is stmia, but without writeback.
12365 2. lmdia without writeback, but with Rn not in
12367 3. ldmia with writeback, but with Rn in reglist.
12368 Case 3 is UNPREDICTABLE behaviour, so we handle
12369 case 1 and 2 which can be converted into a 16-bit
12370 str or ldr. The SP cases are handled below. */
12371 unsigned long opcode;
12372 /* First, record an error for Case 3. */
12373 if (inst.operands[1].imm & mask
12374 && inst.operands[0].writeback)
12376 _("having the base register in the register list when "
12377 "using write back is UNPREDICTABLE");
12379 opcode = (inst.instruction == T_MNEM_stmia ? T_MNEM_str
12381 inst.instruction = THUMB_OP16 (opcode);
12382 inst.instruction |= inst.operands[0].reg << 3;
12383 inst.instruction |= (ffs (inst.operands[1].imm)-1);
12387 else if (inst.operands[0] .reg == REG_SP)
12389 if (inst.operands[0].writeback)
12392 THUMB_OP16 (inst.instruction == T_MNEM_stmia
12393 ? T_MNEM_push : T_MNEM_pop);
12394 inst.instruction |= inst.operands[1].imm;
12397 else if ((inst.operands[1].imm & (inst.operands[1].imm-1)) == 0)
12400 THUMB_OP16 (inst.instruction == T_MNEM_stmia
12401 ? T_MNEM_str_sp : T_MNEM_ldr_sp);
12402 inst.instruction |= ((ffs (inst.operands[1].imm)-1) << 8);
12410 if (inst.instruction < 0xffff)
12411 inst.instruction = THUMB_OP32 (inst.instruction);
12413 encode_thumb2_multi (TRUE /* do_io */, inst.operands[0].reg,
12414 inst.operands[1].imm,
12415 inst.operands[0].writeback);
12420 constraint (inst.operands[0].reg > 7
12421 || (inst.operands[1].imm & ~0xff), BAD_HIREG);
12422 constraint (inst.instruction != T_MNEM_ldmia
12423 && inst.instruction != T_MNEM_stmia,
12424 _("Thumb-2 instruction only valid in unified syntax"));
12425 if (inst.instruction == T_MNEM_stmia)
12427 if (!inst.operands[0].writeback)
12428 as_warn (_("this instruction will write back the base register"));
12429 if ((inst.operands[1].imm & (1 << inst.operands[0].reg))
12430 && (inst.operands[1].imm & ((1 << inst.operands[0].reg) - 1)))
12431 as_warn (_("value stored for r%d is UNKNOWN"),
12432 inst.operands[0].reg);
12436 if (!inst.operands[0].writeback
12437 && !(inst.operands[1].imm & (1 << inst.operands[0].reg)))
12438 as_warn (_("this instruction will write back the base register"));
12439 else if (inst.operands[0].writeback
12440 && (inst.operands[1].imm & (1 << inst.operands[0].reg)))
12441 as_warn (_("this instruction will not write back the base register"));
12444 inst.instruction = THUMB_OP16 (inst.instruction);
12445 inst.instruction |= inst.operands[0].reg << 8;
12446 inst.instruction |= inst.operands[1].imm;
12453 constraint (!inst.operands[1].isreg || !inst.operands[1].preind
12454 || inst.operands[1].postind || inst.operands[1].writeback
12455 || inst.operands[1].immisreg || inst.operands[1].shifted
12456 || inst.operands[1].negative,
12459 constraint ((inst.operands[1].reg == REG_PC), BAD_PC);
12461 inst.instruction |= inst.operands[0].reg << 12;
12462 inst.instruction |= inst.operands[1].reg << 16;
12463 inst.relocs[0].type = BFD_RELOC_ARM_T32_OFFSET_U8;
12469 if (!inst.operands[1].present)
12471 constraint (inst.operands[0].reg == REG_LR,
12472 _("r14 not allowed as first register "
12473 "when second register is omitted"));
12474 inst.operands[1].reg = inst.operands[0].reg + 1;
12476 constraint (inst.operands[0].reg == inst.operands[1].reg,
12479 inst.instruction |= inst.operands[0].reg << 12;
12480 inst.instruction |= inst.operands[1].reg << 8;
12481 inst.instruction |= inst.operands[2].reg << 16;
12487 unsigned long opcode;
12490 if (inst.operands[0].isreg
12491 && !inst.operands[0].preind
12492 && inst.operands[0].reg == REG_PC)
12493 set_pred_insn_type_last ();
12495 opcode = inst.instruction;
12496 if (unified_syntax)
12498 if (!inst.operands[1].isreg)
12500 if (opcode <= 0xffff)
12501 inst.instruction = THUMB_OP32 (opcode);
12502 if (move_or_literal_pool (0, CONST_THUMB, /*mode_3=*/FALSE))
12505 if (inst.operands[1].isreg
12506 && !inst.operands[1].writeback
12507 && !inst.operands[1].shifted && !inst.operands[1].postind
12508 && !inst.operands[1].negative && inst.operands[0].reg <= 7
12509 && opcode <= 0xffff
12510 && inst.size_req != 4)
12512 /* Insn may have a 16-bit form. */
12513 Rn = inst.operands[1].reg;
12514 if (inst.operands[1].immisreg)
12516 inst.instruction = THUMB_OP16 (opcode);
12518 if (Rn <= 7 && inst.operands[1].imm <= 7)
12520 else if (opcode != T_MNEM_ldr && opcode != T_MNEM_str)
12521 reject_bad_reg (inst.operands[1].imm);
12523 else if ((Rn <= 7 && opcode != T_MNEM_ldrsh
12524 && opcode != T_MNEM_ldrsb)
12525 || ((Rn == REG_PC || Rn == REG_SP) && opcode == T_MNEM_ldr)
12526 || (Rn == REG_SP && opcode == T_MNEM_str))
12533 if (inst.relocs[0].pc_rel)
12534 opcode = T_MNEM_ldr_pc2;
12536 opcode = T_MNEM_ldr_pc;
12540 if (opcode == T_MNEM_ldr)
12541 opcode = T_MNEM_ldr_sp;
12543 opcode = T_MNEM_str_sp;
12545 inst.instruction = inst.operands[0].reg << 8;
12549 inst.instruction = inst.operands[0].reg;
12550 inst.instruction |= inst.operands[1].reg << 3;
12552 inst.instruction |= THUMB_OP16 (opcode);
12553 if (inst.size_req == 2)
12554 inst.relocs[0].type = BFD_RELOC_ARM_THUMB_OFFSET;
12556 inst.relax = opcode;
12560 /* Definitely a 32-bit variant. */
12562 /* Warning for Erratum 752419. */
12563 if (opcode == T_MNEM_ldr
12564 && inst.operands[0].reg == REG_SP
12565 && inst.operands[1].writeback == 1
12566 && !inst.operands[1].immisreg)
12568 if (no_cpu_selected ()
12569 || (ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v7)
12570 && !ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v7a)
12571 && !ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v7r)))
12572 as_warn (_("This instruction may be unpredictable "
12573 "if executed on M-profile cores "
12574 "with interrupts enabled."));
12577 /* Do some validations regarding addressing modes. */
12578 if (inst.operands[1].immisreg)
12579 reject_bad_reg (inst.operands[1].imm);
12581 constraint (inst.operands[1].writeback == 1
12582 && inst.operands[0].reg == inst.operands[1].reg,
12585 inst.instruction = THUMB_OP32 (opcode);
12586 inst.instruction |= inst.operands[0].reg << 12;
12587 encode_thumb32_addr_mode (1, /*is_t=*/FALSE, /*is_d=*/FALSE);
12588 check_ldr_r15_aligned ();
12592 constraint (inst.operands[0].reg > 7, BAD_HIREG);
12594 if (inst.instruction == T_MNEM_ldrsh || inst.instruction == T_MNEM_ldrsb)
12596 /* Only [Rn,Rm] is acceptable. */
12597 constraint (inst.operands[1].reg > 7 || inst.operands[1].imm > 7, BAD_HIREG);
12598 constraint (!inst.operands[1].isreg || !inst.operands[1].immisreg
12599 || inst.operands[1].postind || inst.operands[1].shifted
12600 || inst.operands[1].negative,
12601 _("Thumb does not support this addressing mode"));
12602 inst.instruction = THUMB_OP16 (inst.instruction);
12606 inst.instruction = THUMB_OP16 (inst.instruction);
12607 if (!inst.operands[1].isreg)
12608 if (move_or_literal_pool (0, CONST_THUMB, /*mode_3=*/FALSE))
12611 constraint (!inst.operands[1].preind
12612 || inst.operands[1].shifted
12613 || inst.operands[1].writeback,
12614 _("Thumb does not support this addressing mode"));
12615 if (inst.operands[1].reg == REG_PC || inst.operands[1].reg == REG_SP)
12617 constraint (inst.instruction & 0x0600,
12618 _("byte or halfword not valid for base register"));
12619 constraint (inst.operands[1].reg == REG_PC
12620 && !(inst.instruction & THUMB_LOAD_BIT),
12621 _("r15 based store not allowed"));
12622 constraint (inst.operands[1].immisreg,
12623 _("invalid base register for register offset"));
12625 if (inst.operands[1].reg == REG_PC)
12626 inst.instruction = T_OPCODE_LDR_PC;
12627 else if (inst.instruction & THUMB_LOAD_BIT)
12628 inst.instruction = T_OPCODE_LDR_SP;
12630 inst.instruction = T_OPCODE_STR_SP;
12632 inst.instruction |= inst.operands[0].reg << 8;
12633 inst.relocs[0].type = BFD_RELOC_ARM_THUMB_OFFSET;
12637 constraint (inst.operands[1].reg > 7, BAD_HIREG);
12638 if (!inst.operands[1].immisreg)
12640 /* Immediate offset. */
12641 inst.instruction |= inst.operands[0].reg;
12642 inst.instruction |= inst.operands[1].reg << 3;
12643 inst.relocs[0].type = BFD_RELOC_ARM_THUMB_OFFSET;
12647 /* Register offset. */
12648 constraint (inst.operands[1].imm > 7, BAD_HIREG);
12649 constraint (inst.operands[1].negative,
12650 _("Thumb does not support this addressing mode"));
12653 switch (inst.instruction)
12655 case T_OPCODE_STR_IW: inst.instruction = T_OPCODE_STR_RW; break;
12656 case T_OPCODE_STR_IH: inst.instruction = T_OPCODE_STR_RH; break;
12657 case T_OPCODE_STR_IB: inst.instruction = T_OPCODE_STR_RB; break;
12658 case T_OPCODE_LDR_IW: inst.instruction = T_OPCODE_LDR_RW; break;
12659 case T_OPCODE_LDR_IH: inst.instruction = T_OPCODE_LDR_RH; break;
12660 case T_OPCODE_LDR_IB: inst.instruction = T_OPCODE_LDR_RB; break;
12661 case 0x5600 /* ldrsb */:
12662 case 0x5e00 /* ldrsh */: break;
12666 inst.instruction |= inst.operands[0].reg;
12667 inst.instruction |= inst.operands[1].reg << 3;
12668 inst.instruction |= inst.operands[1].imm << 6;
12674 if (!inst.operands[1].present)
12676 inst.operands[1].reg = inst.operands[0].reg + 1;
12677 constraint (inst.operands[0].reg == REG_LR,
12678 _("r14 not allowed here"));
12679 constraint (inst.operands[0].reg == REG_R12,
12680 _("r12 not allowed here"));
12683 if (inst.operands[2].writeback
12684 && (inst.operands[0].reg == inst.operands[2].reg
12685 || inst.operands[1].reg == inst.operands[2].reg))
12686 as_warn (_("base register written back, and overlaps "
12687 "one of transfer registers"));
12689 inst.instruction |= inst.operands[0].reg << 12;
12690 inst.instruction |= inst.operands[1].reg << 8;
12691 encode_thumb32_addr_mode (2, /*is_t=*/FALSE, /*is_d=*/TRUE);
12697 inst.instruction |= inst.operands[0].reg << 12;
12698 encode_thumb32_addr_mode (1, /*is_t=*/TRUE, /*is_d=*/FALSE);
12704 unsigned Rd, Rn, Rm, Ra;
12706 Rd = inst.operands[0].reg;
12707 Rn = inst.operands[1].reg;
12708 Rm = inst.operands[2].reg;
12709 Ra = inst.operands[3].reg;
12711 reject_bad_reg (Rd);
12712 reject_bad_reg (Rn);
12713 reject_bad_reg (Rm);
12714 reject_bad_reg (Ra);
12716 inst.instruction |= Rd << 8;
12717 inst.instruction |= Rn << 16;
12718 inst.instruction |= Rm;
12719 inst.instruction |= Ra << 12;
12725 unsigned RdLo, RdHi, Rn, Rm;
12727 RdLo = inst.operands[0].reg;
12728 RdHi = inst.operands[1].reg;
12729 Rn = inst.operands[2].reg;
12730 Rm = inst.operands[3].reg;
12732 reject_bad_reg (RdLo);
12733 reject_bad_reg (RdHi);
12734 reject_bad_reg (Rn);
12735 reject_bad_reg (Rm);
12737 inst.instruction |= RdLo << 12;
12738 inst.instruction |= RdHi << 8;
12739 inst.instruction |= Rn << 16;
12740 inst.instruction |= Rm;
12744 do_t_mov_cmp (void)
12748 Rn = inst.operands[0].reg;
12749 Rm = inst.operands[1].reg;
12752 set_pred_insn_type_last ();
12754 if (unified_syntax)
12756 int r0off = (inst.instruction == T_MNEM_mov
12757 || inst.instruction == T_MNEM_movs) ? 8 : 16;
12758 unsigned long opcode;
12759 bfd_boolean narrow;
12760 bfd_boolean low_regs;
12762 low_regs = (Rn <= 7 && Rm <= 7);
12763 opcode = inst.instruction;
12764 if (in_pred_block ())
12765 narrow = opcode != T_MNEM_movs;
12767 narrow = opcode != T_MNEM_movs || low_regs;
12768 if (inst.size_req == 4
12769 || inst.operands[1].shifted)
12772 /* MOVS PC, LR is encoded as SUBS PC, LR, #0. */
12773 if (opcode == T_MNEM_movs && inst.operands[1].isreg
12774 && !inst.operands[1].shifted
12778 inst.instruction = T2_SUBS_PC_LR;
12782 if (opcode == T_MNEM_cmp)
12784 constraint (Rn == REG_PC, BAD_PC);
12787 /* In the Thumb-2 ISA, use of R13 as Rm is deprecated,
12789 warn_deprecated_sp (Rm);
12790 /* R15 was documented as a valid choice for Rm in ARMv6,
12791 but as UNPREDICTABLE in ARMv7. ARM's proprietary
12792 tools reject R15, so we do too. */
12793 constraint (Rm == REG_PC, BAD_PC);
12796 reject_bad_reg (Rm);
12798 else if (opcode == T_MNEM_mov
12799 || opcode == T_MNEM_movs)
12801 if (inst.operands[1].isreg)
12803 if (opcode == T_MNEM_movs)
12805 reject_bad_reg (Rn);
12806 reject_bad_reg (Rm);
12810 /* This is mov.n. */
12811 if ((Rn == REG_SP || Rn == REG_PC)
12812 && (Rm == REG_SP || Rm == REG_PC))
12814 as_tsktsk (_("Use of r%u as a source register is "
12815 "deprecated when r%u is the destination "
12816 "register."), Rm, Rn);
12821 /* This is mov.w. */
12822 constraint (Rn == REG_PC, BAD_PC);
12823 constraint (Rm == REG_PC, BAD_PC);
12824 if (!ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v8))
12825 constraint (Rn == REG_SP && Rm == REG_SP, BAD_SP);
12829 reject_bad_reg (Rn);
12832 if (!inst.operands[1].isreg)
12834 /* Immediate operand. */
12835 if (!in_pred_block () && opcode == T_MNEM_mov)
12837 if (low_regs && narrow)
12839 inst.instruction = THUMB_OP16 (opcode);
12840 inst.instruction |= Rn << 8;
12841 if (inst.relocs[0].type < BFD_RELOC_ARM_THUMB_ALU_ABS_G0_NC
12842 || inst.relocs[0].type > BFD_RELOC_ARM_THUMB_ALU_ABS_G3_NC)
12844 if (inst.size_req == 2)
12845 inst.relocs[0].type = BFD_RELOC_ARM_THUMB_IMM;
12847 inst.relax = opcode;
12852 constraint ((inst.relocs[0].type
12853 >= BFD_RELOC_ARM_THUMB_ALU_ABS_G0_NC)
12854 && (inst.relocs[0].type
12855 <= BFD_RELOC_ARM_THUMB_ALU_ABS_G3_NC) ,
12856 THUMB1_RELOC_ONLY);
12858 inst.instruction = THUMB_OP32 (inst.instruction);
12859 inst.instruction = (inst.instruction & 0xe1ffffff) | 0x10000000;
12860 inst.instruction |= Rn << r0off;
12861 inst.relocs[0].type = BFD_RELOC_ARM_T32_IMMEDIATE;
12864 else if (inst.operands[1].shifted && inst.operands[1].immisreg
12865 && (inst.instruction == T_MNEM_mov
12866 || inst.instruction == T_MNEM_movs))
12868 /* Register shifts are encoded as separate shift instructions. */
12869 bfd_boolean flags = (inst.instruction == T_MNEM_movs);
12871 if (in_pred_block ())
12876 if (inst.size_req == 4)
12879 if (!low_regs || inst.operands[1].imm > 7)
12885 switch (inst.operands[1].shift_kind)
12888 opcode = narrow ? T_OPCODE_LSL_R : THUMB_OP32 (T_MNEM_lsl);
12891 opcode = narrow ? T_OPCODE_ASR_R : THUMB_OP32 (T_MNEM_asr);
12894 opcode = narrow ? T_OPCODE_LSR_R : THUMB_OP32 (T_MNEM_lsr);
12897 opcode = narrow ? T_OPCODE_ROR_R : THUMB_OP32 (T_MNEM_ror);
12903 inst.instruction = opcode;
12906 inst.instruction |= Rn;
12907 inst.instruction |= inst.operands[1].imm << 3;
12912 inst.instruction |= CONDS_BIT;
12914 inst.instruction |= Rn << 8;
12915 inst.instruction |= Rm << 16;
12916 inst.instruction |= inst.operands[1].imm;
12921 /* Some mov with immediate shift have narrow variants.
12922 Register shifts are handled above. */
12923 if (low_regs && inst.operands[1].shifted
12924 && (inst.instruction == T_MNEM_mov
12925 || inst.instruction == T_MNEM_movs))
12927 if (in_pred_block ())
12928 narrow = (inst.instruction == T_MNEM_mov);
12930 narrow = (inst.instruction == T_MNEM_movs);
12935 switch (inst.operands[1].shift_kind)
12937 case SHIFT_LSL: inst.instruction = T_OPCODE_LSL_I; break;
12938 case SHIFT_LSR: inst.instruction = T_OPCODE_LSR_I; break;
12939 case SHIFT_ASR: inst.instruction = T_OPCODE_ASR_I; break;
12940 default: narrow = FALSE; break;
12946 inst.instruction |= Rn;
12947 inst.instruction |= Rm << 3;
12948 inst.relocs[0].type = BFD_RELOC_ARM_THUMB_SHIFT;
12952 inst.instruction = THUMB_OP32 (inst.instruction);
12953 inst.instruction |= Rn << r0off;
12954 encode_thumb32_shifted_operand (1);
12958 switch (inst.instruction)
12961 /* In v4t or v5t a move of two lowregs produces unpredictable
12962 results. Don't allow this. */
12965 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v6),
12966 "MOV Rd, Rs with two low registers is not "
12967 "permitted on this architecture");
12968 ARM_MERGE_FEATURE_SETS (thumb_arch_used, thumb_arch_used,
12972 inst.instruction = T_OPCODE_MOV_HR;
12973 inst.instruction |= (Rn & 0x8) << 4;
12974 inst.instruction |= (Rn & 0x7);
12975 inst.instruction |= Rm << 3;
12979 /* We know we have low registers at this point.
12980 Generate LSLS Rd, Rs, #0. */
12981 inst.instruction = T_OPCODE_LSL_I;
12982 inst.instruction |= Rn;
12983 inst.instruction |= Rm << 3;
12989 inst.instruction = T_OPCODE_CMP_LR;
12990 inst.instruction |= Rn;
12991 inst.instruction |= Rm << 3;
12995 inst.instruction = T_OPCODE_CMP_HR;
12996 inst.instruction |= (Rn & 0x8) << 4;
12997 inst.instruction |= (Rn & 0x7);
12998 inst.instruction |= Rm << 3;
13005 inst.instruction = THUMB_OP16 (inst.instruction);
13007 /* PR 10443: Do not silently ignore shifted operands. */
13008 constraint (inst.operands[1].shifted,
13009 _("shifts in CMP/MOV instructions are only supported in unified syntax"));
13011 if (inst.operands[1].isreg)
13013 if (Rn < 8 && Rm < 8)
13015 /* A move of two lowregs is encoded as ADD Rd, Rs, #0
13016 since a MOV instruction produces unpredictable results. */
13017 if (inst.instruction == T_OPCODE_MOV_I8)
13018 inst.instruction = T_OPCODE_ADD_I3;
13020 inst.instruction = T_OPCODE_CMP_LR;
13022 inst.instruction |= Rn;
13023 inst.instruction |= Rm << 3;
13027 if (inst.instruction == T_OPCODE_MOV_I8)
13028 inst.instruction = T_OPCODE_MOV_HR;
13030 inst.instruction = T_OPCODE_CMP_HR;
13036 constraint (Rn > 7,
13037 _("only lo regs allowed with immediate"));
13038 inst.instruction |= Rn << 8;
13039 inst.relocs[0].type = BFD_RELOC_ARM_THUMB_IMM;
13050 top = (inst.instruction & 0x00800000) != 0;
13051 if (inst.relocs[0].type == BFD_RELOC_ARM_MOVW)
13053 constraint (top, _(":lower16: not allowed in this instruction"));
13054 inst.relocs[0].type = BFD_RELOC_ARM_THUMB_MOVW;
13056 else if (inst.relocs[0].type == BFD_RELOC_ARM_MOVT)
13058 constraint (!top, _(":upper16: not allowed in this instruction"));
13059 inst.relocs[0].type = BFD_RELOC_ARM_THUMB_MOVT;
13062 Rd = inst.operands[0].reg;
13063 reject_bad_reg (Rd);
13065 inst.instruction |= Rd << 8;
13066 if (inst.relocs[0].type == BFD_RELOC_UNUSED)
13068 imm = inst.relocs[0].exp.X_add_number;
13069 inst.instruction |= (imm & 0xf000) << 4;
13070 inst.instruction |= (imm & 0x0800) << 15;
13071 inst.instruction |= (imm & 0x0700) << 4;
13072 inst.instruction |= (imm & 0x00ff);
13077 do_t_mvn_tst (void)
13081 Rn = inst.operands[0].reg;
13082 Rm = inst.operands[1].reg;
13084 if (inst.instruction == T_MNEM_cmp
13085 || inst.instruction == T_MNEM_cmn)
13086 constraint (Rn == REG_PC, BAD_PC);
13088 reject_bad_reg (Rn);
13089 reject_bad_reg (Rm);
13091 if (unified_syntax)
13093 int r0off = (inst.instruction == T_MNEM_mvn
13094 || inst.instruction == T_MNEM_mvns) ? 8 : 16;
13095 bfd_boolean narrow;
13097 if (inst.size_req == 4
13098 || inst.instruction > 0xffff
13099 || inst.operands[1].shifted
13100 || Rn > 7 || Rm > 7)
13102 else if (inst.instruction == T_MNEM_cmn
13103 || inst.instruction == T_MNEM_tst)
13105 else if (THUMB_SETS_FLAGS (inst.instruction))
13106 narrow = !in_pred_block ();
13108 narrow = in_pred_block ();
13110 if (!inst.operands[1].isreg)
13112 /* For an immediate, we always generate a 32-bit opcode;
13113 section relaxation will shrink it later if possible. */
13114 if (inst.instruction < 0xffff)
13115 inst.instruction = THUMB_OP32 (inst.instruction);
13116 inst.instruction = (inst.instruction & 0xe1ffffff) | 0x10000000;
13117 inst.instruction |= Rn << r0off;
13118 inst.relocs[0].type = BFD_RELOC_ARM_T32_IMMEDIATE;
13122 /* See if we can do this with a 16-bit instruction. */
13125 inst.instruction = THUMB_OP16 (inst.instruction);
13126 inst.instruction |= Rn;
13127 inst.instruction |= Rm << 3;
13131 constraint (inst.operands[1].shifted
13132 && inst.operands[1].immisreg,
13133 _("shift must be constant"));
13134 if (inst.instruction < 0xffff)
13135 inst.instruction = THUMB_OP32 (inst.instruction);
13136 inst.instruction |= Rn << r0off;
13137 encode_thumb32_shifted_operand (1);
13143 constraint (inst.instruction > 0xffff
13144 || inst.instruction == T_MNEM_mvns, BAD_THUMB32);
13145 constraint (!inst.operands[1].isreg || inst.operands[1].shifted,
13146 _("unshifted register required"));
13147 constraint (Rn > 7 || Rm > 7,
13150 inst.instruction = THUMB_OP16 (inst.instruction);
13151 inst.instruction |= Rn;
13152 inst.instruction |= Rm << 3;
13161 if (do_vfp_nsyn_mrs () == SUCCESS)
13164 Rd = inst.operands[0].reg;
13165 reject_bad_reg (Rd);
13166 inst.instruction |= Rd << 8;
13168 if (inst.operands[1].isreg)
13170 unsigned br = inst.operands[1].reg;
13171 if (((br & 0x200) == 0) && ((br & 0xf000) != 0xf000))
13172 as_bad (_("bad register for mrs"));
13174 inst.instruction |= br & (0xf << 16);
13175 inst.instruction |= (br & 0x300) >> 4;
13176 inst.instruction |= (br & SPSR_BIT) >> 2;
13180 int flags = inst.operands[1].imm & (PSR_c|PSR_x|PSR_s|PSR_f|SPSR_BIT);
13182 if (ARM_CPU_HAS_FEATURE (selected_cpu, arm_ext_m))
13184 /* PR gas/12698: The constraint is only applied for m_profile.
13185 If the user has specified -march=all, we want to ignore it as
13186 we are building for any CPU type, including non-m variants. */
13187 bfd_boolean m_profile =
13188 !ARM_FEATURE_CORE_EQUAL (selected_cpu, arm_arch_any);
13189 constraint ((flags != 0) && m_profile, _("selected processor does "
13190 "not support requested special purpose register"));
13193 /* mrs only accepts APSR/CPSR/SPSR/CPSR_all/SPSR_all (for non-M profile
13195 constraint ((flags & ~SPSR_BIT) != (PSR_c|PSR_f),
13196 _("'APSR', 'CPSR' or 'SPSR' expected"));
13198 inst.instruction |= (flags & SPSR_BIT) >> 2;
13199 inst.instruction |= inst.operands[1].imm & 0xff;
13200 inst.instruction |= 0xf0000;
13210 if (do_vfp_nsyn_msr () == SUCCESS)
13213 constraint (!inst.operands[1].isreg,
13214 _("Thumb encoding does not support an immediate here"));
13216 if (inst.operands[0].isreg)
13217 flags = (int)(inst.operands[0].reg);
13219 flags = inst.operands[0].imm;
13221 if (ARM_CPU_HAS_FEATURE (selected_cpu, arm_ext_m))
13223 int bits = inst.operands[0].imm & (PSR_c|PSR_x|PSR_s|PSR_f|SPSR_BIT);
13225 /* PR gas/12698: The constraint is only applied for m_profile.
13226 If the user has specified -march=all, we want to ignore it as
13227 we are building for any CPU type, including non-m variants. */
13228 bfd_boolean m_profile =
13229 !ARM_FEATURE_CORE_EQUAL (selected_cpu, arm_arch_any);
13230 constraint (((ARM_CPU_HAS_FEATURE (selected_cpu, arm_ext_v6_dsp)
13231 && (bits & ~(PSR_s | PSR_f)) != 0)
13232 || (!ARM_CPU_HAS_FEATURE (selected_cpu, arm_ext_v6_dsp)
13233 && bits != PSR_f)) && m_profile,
13234 _("selected processor does not support requested special "
13235 "purpose register"));
13238 constraint ((flags & 0xff) != 0, _("selected processor does not support "
13239 "requested special purpose register"));
13241 Rn = inst.operands[1].reg;
13242 reject_bad_reg (Rn);
13244 inst.instruction |= (flags & SPSR_BIT) >> 2;
13245 inst.instruction |= (flags & 0xf0000) >> 8;
13246 inst.instruction |= (flags & 0x300) >> 4;
13247 inst.instruction |= (flags & 0xff);
13248 inst.instruction |= Rn << 16;
13254 bfd_boolean narrow;
13255 unsigned Rd, Rn, Rm;
13257 if (!inst.operands[2].present)
13258 inst.operands[2].reg = inst.operands[0].reg;
13260 Rd = inst.operands[0].reg;
13261 Rn = inst.operands[1].reg;
13262 Rm = inst.operands[2].reg;
13264 if (unified_syntax)
13266 if (inst.size_req == 4
13272 else if (inst.instruction == T_MNEM_muls)
13273 narrow = !in_pred_block ();
13275 narrow = in_pred_block ();
13279 constraint (inst.instruction == T_MNEM_muls, BAD_THUMB32);
13280 constraint (Rn > 7 || Rm > 7,
13287 /* 16-bit MULS/Conditional MUL. */
13288 inst.instruction = THUMB_OP16 (inst.instruction);
13289 inst.instruction |= Rd;
13292 inst.instruction |= Rm << 3;
13294 inst.instruction |= Rn << 3;
13296 constraint (1, _("dest must overlap one source register"));
13300 constraint (inst.instruction != T_MNEM_mul,
13301 _("Thumb-2 MUL must not set flags"));
13303 inst.instruction = THUMB_OP32 (inst.instruction);
13304 inst.instruction |= Rd << 8;
13305 inst.instruction |= Rn << 16;
13306 inst.instruction |= Rm << 0;
13308 reject_bad_reg (Rd);
13309 reject_bad_reg (Rn);
13310 reject_bad_reg (Rm);
13317 unsigned RdLo, RdHi, Rn, Rm;
13319 RdLo = inst.operands[0].reg;
13320 RdHi = inst.operands[1].reg;
13321 Rn = inst.operands[2].reg;
13322 Rm = inst.operands[3].reg;
13324 reject_bad_reg (RdLo);
13325 reject_bad_reg (RdHi);
13326 reject_bad_reg (Rn);
13327 reject_bad_reg (Rm);
13329 inst.instruction |= RdLo << 12;
13330 inst.instruction |= RdHi << 8;
13331 inst.instruction |= Rn << 16;
13332 inst.instruction |= Rm;
13335 as_tsktsk (_("rdhi and rdlo must be different"));
13341 set_pred_insn_type (NEUTRAL_IT_INSN);
13343 if (unified_syntax)
13345 if (inst.size_req == 4 || inst.operands[0].imm > 15)
13347 inst.instruction = THUMB_OP32 (inst.instruction);
13348 inst.instruction |= inst.operands[0].imm;
13352 /* PR9722: Check for Thumb2 availability before
13353 generating a thumb2 nop instruction. */
13354 if (ARM_CPU_HAS_FEATURE (selected_cpu, arm_ext_v6t2))
13356 inst.instruction = THUMB_OP16 (inst.instruction);
13357 inst.instruction |= inst.operands[0].imm << 4;
13360 inst.instruction = 0x46c0;
13365 constraint (inst.operands[0].present,
13366 _("Thumb does not support NOP with hints"));
13367 inst.instruction = 0x46c0;
13374 if (unified_syntax)
13376 bfd_boolean narrow;
13378 if (THUMB_SETS_FLAGS (inst.instruction))
13379 narrow = !in_pred_block ();
13381 narrow = in_pred_block ();
13382 if (inst.operands[0].reg > 7 || inst.operands[1].reg > 7)
13384 if (inst.size_req == 4)
13389 inst.instruction = THUMB_OP32 (inst.instruction);
13390 inst.instruction |= inst.operands[0].reg << 8;
13391 inst.instruction |= inst.operands[1].reg << 16;
13395 inst.instruction = THUMB_OP16 (inst.instruction);
13396 inst.instruction |= inst.operands[0].reg;
13397 inst.instruction |= inst.operands[1].reg << 3;
13402 constraint (inst.operands[0].reg > 7 || inst.operands[1].reg > 7,
13404 constraint (THUMB_SETS_FLAGS (inst.instruction), BAD_THUMB32);
13406 inst.instruction = THUMB_OP16 (inst.instruction);
13407 inst.instruction |= inst.operands[0].reg;
13408 inst.instruction |= inst.operands[1].reg << 3;
13417 Rd = inst.operands[0].reg;
13418 Rn = inst.operands[1].present ? inst.operands[1].reg : Rd;
13420 reject_bad_reg (Rd);
13421 /* Rn == REG_SP is unpredictable; Rn == REG_PC is MVN. */
13422 reject_bad_reg (Rn);
13424 inst.instruction |= Rd << 8;
13425 inst.instruction |= Rn << 16;
13427 if (!inst.operands[2].isreg)
13429 inst.instruction = (inst.instruction & 0xe1ffffff) | 0x10000000;
13430 inst.relocs[0].type = BFD_RELOC_ARM_T32_IMMEDIATE;
13436 Rm = inst.operands[2].reg;
13437 reject_bad_reg (Rm);
13439 constraint (inst.operands[2].shifted
13440 && inst.operands[2].immisreg,
13441 _("shift must be constant"));
13442 encode_thumb32_shifted_operand (2);
13449 unsigned Rd, Rn, Rm;
13451 Rd = inst.operands[0].reg;
13452 Rn = inst.operands[1].reg;
13453 Rm = inst.operands[2].reg;
13455 reject_bad_reg (Rd);
13456 reject_bad_reg (Rn);
13457 reject_bad_reg (Rm);
13459 inst.instruction |= Rd << 8;
13460 inst.instruction |= Rn << 16;
13461 inst.instruction |= Rm;
13462 if (inst.operands[3].present)
13464 unsigned int val = inst.relocs[0].exp.X_add_number;
13465 constraint (inst.relocs[0].exp.X_op != O_constant,
13466 _("expression too complex"));
13467 inst.instruction |= (val & 0x1c) << 10;
13468 inst.instruction |= (val & 0x03) << 6;
13475 if (!inst.operands[3].present)
13479 inst.instruction &= ~0x00000020;
13481 /* PR 10168. Swap the Rm and Rn registers. */
13482 Rtmp = inst.operands[1].reg;
13483 inst.operands[1].reg = inst.operands[2].reg;
13484 inst.operands[2].reg = Rtmp;
13492 if (inst.operands[0].immisreg)
13493 reject_bad_reg (inst.operands[0].imm);
13495 encode_thumb32_addr_mode (0, /*is_t=*/FALSE, /*is_d=*/FALSE);
13499 do_t_push_pop (void)
13503 constraint (inst.operands[0].writeback,
13504 _("push/pop do not support {reglist}^"));
13505 constraint (inst.relocs[0].type != BFD_RELOC_UNUSED,
13506 _("expression too complex"));
13508 mask = inst.operands[0].imm;
13509 if (inst.size_req != 4 && (mask & ~0xff) == 0)
13510 inst.instruction = THUMB_OP16 (inst.instruction) | mask;
13511 else if (inst.size_req != 4
13512 && (mask & ~0xff) == (1U << (inst.instruction == T_MNEM_push
13513 ? REG_LR : REG_PC)))
13515 inst.instruction = THUMB_OP16 (inst.instruction);
13516 inst.instruction |= THUMB_PP_PC_LR;
13517 inst.instruction |= mask & 0xff;
13519 else if (unified_syntax)
13521 inst.instruction = THUMB_OP32 (inst.instruction);
13522 encode_thumb2_multi (TRUE /* do_io */, 13, mask, TRUE);
13526 inst.error = _("invalid register list to push/pop instruction");
13534 if (unified_syntax)
13535 encode_thumb2_multi (FALSE /* do_io */, -1, inst.operands[0].imm, FALSE);
13538 inst.error = _("invalid register list to push/pop instruction");
13544 do_t_vscclrm (void)
13546 if (inst.operands[0].issingle)
13548 inst.instruction |= (inst.operands[0].reg & 0x1) << 22;
13549 inst.instruction |= (inst.operands[0].reg & 0x1e) << 11;
13550 inst.instruction |= inst.operands[0].imm;
13554 inst.instruction |= (inst.operands[0].reg & 0x10) << 18;
13555 inst.instruction |= (inst.operands[0].reg & 0xf) << 12;
13556 inst.instruction |= 1 << 8;
13557 inst.instruction |= inst.operands[0].imm << 1;
13566 Rd = inst.operands[0].reg;
13567 Rm = inst.operands[1].reg;
13569 reject_bad_reg (Rd);
13570 reject_bad_reg (Rm);
13572 inst.instruction |= Rd << 8;
13573 inst.instruction |= Rm << 16;
13574 inst.instruction |= Rm;
13582 Rd = inst.operands[0].reg;
13583 Rm = inst.operands[1].reg;
13585 reject_bad_reg (Rd);
13586 reject_bad_reg (Rm);
13588 if (Rd <= 7 && Rm <= 7
13589 && inst.size_req != 4)
13591 inst.instruction = THUMB_OP16 (inst.instruction);
13592 inst.instruction |= Rd;
13593 inst.instruction |= Rm << 3;
13595 else if (unified_syntax)
13597 inst.instruction = THUMB_OP32 (inst.instruction);
13598 inst.instruction |= Rd << 8;
13599 inst.instruction |= Rm << 16;
13600 inst.instruction |= Rm;
13603 inst.error = BAD_HIREG;
13611 Rd = inst.operands[0].reg;
13612 Rm = inst.operands[1].reg;
13614 reject_bad_reg (Rd);
13615 reject_bad_reg (Rm);
13617 inst.instruction |= Rd << 8;
13618 inst.instruction |= Rm;
13626 Rd = inst.operands[0].reg;
13627 Rs = (inst.operands[1].present
13628 ? inst.operands[1].reg /* Rd, Rs, foo */
13629 : inst.operands[0].reg); /* Rd, foo -> Rd, Rd, foo */
13631 reject_bad_reg (Rd);
13632 reject_bad_reg (Rs);
13633 if (inst.operands[2].isreg)
13634 reject_bad_reg (inst.operands[2].reg);
13636 inst.instruction |= Rd << 8;
13637 inst.instruction |= Rs << 16;
13638 if (!inst.operands[2].isreg)
13640 bfd_boolean narrow;
13642 if ((inst.instruction & 0x00100000) != 0)
13643 narrow = !in_pred_block ();
13645 narrow = in_pred_block ();
13647 if (Rd > 7 || Rs > 7)
13650 if (inst.size_req == 4 || !unified_syntax)
13653 if (inst.relocs[0].exp.X_op != O_constant
13654 || inst.relocs[0].exp.X_add_number != 0)
13657 /* Turn rsb #0 into 16-bit neg. We should probably do this via
13658 relaxation, but it doesn't seem worth the hassle. */
13661 inst.relocs[0].type = BFD_RELOC_UNUSED;
13662 inst.instruction = THUMB_OP16 (T_MNEM_negs);
13663 inst.instruction |= Rs << 3;
13664 inst.instruction |= Rd;
13668 inst.instruction = (inst.instruction & 0xe1ffffff) | 0x10000000;
13669 inst.relocs[0].type = BFD_RELOC_ARM_T32_IMMEDIATE;
13673 encode_thumb32_shifted_operand (2);
13679 if (warn_on_deprecated
13680 && ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v8))
13681 as_tsktsk (_("setend use is deprecated for ARMv8"));
13683 set_pred_insn_type (OUTSIDE_PRED_INSN);
13684 if (inst.operands[0].imm)
13685 inst.instruction |= 0x8;
13691 if (!inst.operands[1].present)
13692 inst.operands[1].reg = inst.operands[0].reg;
13694 if (unified_syntax)
13696 bfd_boolean narrow;
13699 switch (inst.instruction)
13702 case T_MNEM_asrs: shift_kind = SHIFT_ASR; break;
13704 case T_MNEM_lsls: shift_kind = SHIFT_LSL; break;
13706 case T_MNEM_lsrs: shift_kind = SHIFT_LSR; break;
13708 case T_MNEM_rors: shift_kind = SHIFT_ROR; break;
13712 if (THUMB_SETS_FLAGS (inst.instruction))
13713 narrow = !in_pred_block ();
13715 narrow = in_pred_block ();
13716 if (inst.operands[0].reg > 7 || inst.operands[1].reg > 7)
13718 if (!inst.operands[2].isreg && shift_kind == SHIFT_ROR)
13720 if (inst.operands[2].isreg
13721 && (inst.operands[1].reg != inst.operands[0].reg
13722 || inst.operands[2].reg > 7))
13724 if (inst.size_req == 4)
13727 reject_bad_reg (inst.operands[0].reg);
13728 reject_bad_reg (inst.operands[1].reg);
13732 if (inst.operands[2].isreg)
13734 reject_bad_reg (inst.operands[2].reg);
13735 inst.instruction = THUMB_OP32 (inst.instruction);
13736 inst.instruction |= inst.operands[0].reg << 8;
13737 inst.instruction |= inst.operands[1].reg << 16;
13738 inst.instruction |= inst.operands[2].reg;
13740 /* PR 12854: Error on extraneous shifts. */
13741 constraint (inst.operands[2].shifted,
13742 _("extraneous shift as part of operand to shift insn"));
13746 inst.operands[1].shifted = 1;
13747 inst.operands[1].shift_kind = shift_kind;
13748 inst.instruction = THUMB_OP32 (THUMB_SETS_FLAGS (inst.instruction)
13749 ? T_MNEM_movs : T_MNEM_mov);
13750 inst.instruction |= inst.operands[0].reg << 8;
13751 encode_thumb32_shifted_operand (1);
13752 /* Prevent the incorrect generation of an ARM_IMMEDIATE fixup. */
13753 inst.relocs[0].type = BFD_RELOC_UNUSED;
13758 if (inst.operands[2].isreg)
13760 switch (shift_kind)
13762 case SHIFT_ASR: inst.instruction = T_OPCODE_ASR_R; break;
13763 case SHIFT_LSL: inst.instruction = T_OPCODE_LSL_R; break;
13764 case SHIFT_LSR: inst.instruction = T_OPCODE_LSR_R; break;
13765 case SHIFT_ROR: inst.instruction = T_OPCODE_ROR_R; break;
13769 inst.instruction |= inst.operands[0].reg;
13770 inst.instruction |= inst.operands[2].reg << 3;
13772 /* PR 12854: Error on extraneous shifts. */
13773 constraint (inst.operands[2].shifted,
13774 _("extraneous shift as part of operand to shift insn"));
13778 switch (shift_kind)
13780 case SHIFT_ASR: inst.instruction = T_OPCODE_ASR_I; break;
13781 case SHIFT_LSL: inst.instruction = T_OPCODE_LSL_I; break;
13782 case SHIFT_LSR: inst.instruction = T_OPCODE_LSR_I; break;
13785 inst.relocs[0].type = BFD_RELOC_ARM_THUMB_SHIFT;
13786 inst.instruction |= inst.operands[0].reg;
13787 inst.instruction |= inst.operands[1].reg << 3;
13793 constraint (inst.operands[0].reg > 7
13794 || inst.operands[1].reg > 7, BAD_HIREG);
13795 constraint (THUMB_SETS_FLAGS (inst.instruction), BAD_THUMB32);
13797 if (inst.operands[2].isreg) /* Rd, {Rs,} Rn */
13799 constraint (inst.operands[2].reg > 7, BAD_HIREG);
13800 constraint (inst.operands[0].reg != inst.operands[1].reg,
13801 _("source1 and dest must be same register"));
13803 switch (inst.instruction)
13805 case T_MNEM_asr: inst.instruction = T_OPCODE_ASR_R; break;
13806 case T_MNEM_lsl: inst.instruction = T_OPCODE_LSL_R; break;
13807 case T_MNEM_lsr: inst.instruction = T_OPCODE_LSR_R; break;
13808 case T_MNEM_ror: inst.instruction = T_OPCODE_ROR_R; break;
13812 inst.instruction |= inst.operands[0].reg;
13813 inst.instruction |= inst.operands[2].reg << 3;
13815 /* PR 12854: Error on extraneous shifts. */
13816 constraint (inst.operands[2].shifted,
13817 _("extraneous shift as part of operand to shift insn"));
13821 switch (inst.instruction)
13823 case T_MNEM_asr: inst.instruction = T_OPCODE_ASR_I; break;
13824 case T_MNEM_lsl: inst.instruction = T_OPCODE_LSL_I; break;
13825 case T_MNEM_lsr: inst.instruction = T_OPCODE_LSR_I; break;
13826 case T_MNEM_ror: inst.error = _("ror #imm not supported"); return;
13829 inst.relocs[0].type = BFD_RELOC_ARM_THUMB_SHIFT;
13830 inst.instruction |= inst.operands[0].reg;
13831 inst.instruction |= inst.operands[1].reg << 3;
13839 unsigned Rd, Rn, Rm;
13841 Rd = inst.operands[0].reg;
13842 Rn = inst.operands[1].reg;
13843 Rm = inst.operands[2].reg;
13845 reject_bad_reg (Rd);
13846 reject_bad_reg (Rn);
13847 reject_bad_reg (Rm);
13849 inst.instruction |= Rd << 8;
13850 inst.instruction |= Rn << 16;
13851 inst.instruction |= Rm;
13857 unsigned Rd, Rn, Rm;
13859 Rd = inst.operands[0].reg;
13860 Rm = inst.operands[1].reg;
13861 Rn = inst.operands[2].reg;
13863 reject_bad_reg (Rd);
13864 reject_bad_reg (Rn);
13865 reject_bad_reg (Rm);
13867 inst.instruction |= Rd << 8;
13868 inst.instruction |= Rn << 16;
13869 inst.instruction |= Rm;
13875 unsigned int value = inst.relocs[0].exp.X_add_number;
13876 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v7a),
13877 _("SMC is not permitted on this architecture"));
13878 constraint (inst.relocs[0].exp.X_op != O_constant,
13879 _("expression too complex"));
13880 inst.relocs[0].type = BFD_RELOC_UNUSED;
13881 inst.instruction |= (value & 0xf000) >> 12;
13882 inst.instruction |= (value & 0x0ff0);
13883 inst.instruction |= (value & 0x000f) << 16;
13884 /* PR gas/15623: SMC instructions must be last in an IT block. */
13885 set_pred_insn_type_last ();
13891 unsigned int value = inst.relocs[0].exp.X_add_number;
13893 inst.relocs[0].type = BFD_RELOC_UNUSED;
13894 inst.instruction |= (value & 0x0fff);
13895 inst.instruction |= (value & 0xf000) << 4;
13899 do_t_ssat_usat (int bias)
13903 Rd = inst.operands[0].reg;
13904 Rn = inst.operands[2].reg;
13906 reject_bad_reg (Rd);
13907 reject_bad_reg (Rn);
13909 inst.instruction |= Rd << 8;
13910 inst.instruction |= inst.operands[1].imm - bias;
13911 inst.instruction |= Rn << 16;
13913 if (inst.operands[3].present)
13915 offsetT shift_amount = inst.relocs[0].exp.X_add_number;
13917 inst.relocs[0].type = BFD_RELOC_UNUSED;
13919 constraint (inst.relocs[0].exp.X_op != O_constant,
13920 _("expression too complex"));
13922 if (shift_amount != 0)
13924 constraint (shift_amount > 31,
13925 _("shift expression is too large"));
13927 if (inst.operands[3].shift_kind == SHIFT_ASR)
13928 inst.instruction |= 0x00200000; /* sh bit. */
13930 inst.instruction |= (shift_amount & 0x1c) << 10;
13931 inst.instruction |= (shift_amount & 0x03) << 6;
13939 do_t_ssat_usat (1);
13947 Rd = inst.operands[0].reg;
13948 Rn = inst.operands[2].reg;
13950 reject_bad_reg (Rd);
13951 reject_bad_reg (Rn);
13953 inst.instruction |= Rd << 8;
13954 inst.instruction |= inst.operands[1].imm - 1;
13955 inst.instruction |= Rn << 16;
13961 constraint (!inst.operands[2].isreg || !inst.operands[2].preind
13962 || inst.operands[2].postind || inst.operands[2].writeback
13963 || inst.operands[2].immisreg || inst.operands[2].shifted
13964 || inst.operands[2].negative,
13967 constraint (inst.operands[2].reg == REG_PC, BAD_PC);
13969 inst.instruction |= inst.operands[0].reg << 8;
13970 inst.instruction |= inst.operands[1].reg << 12;
13971 inst.instruction |= inst.operands[2].reg << 16;
13972 inst.relocs[0].type = BFD_RELOC_ARM_T32_OFFSET_U8;
13978 if (!inst.operands[2].present)
13979 inst.operands[2].reg = inst.operands[1].reg + 1;
13981 constraint (inst.operands[0].reg == inst.operands[1].reg
13982 || inst.operands[0].reg == inst.operands[2].reg
13983 || inst.operands[0].reg == inst.operands[3].reg,
13986 inst.instruction |= inst.operands[0].reg;
13987 inst.instruction |= inst.operands[1].reg << 12;
13988 inst.instruction |= inst.operands[2].reg << 8;
13989 inst.instruction |= inst.operands[3].reg << 16;
13995 unsigned Rd, Rn, Rm;
13997 Rd = inst.operands[0].reg;
13998 Rn = inst.operands[1].reg;
13999 Rm = inst.operands[2].reg;
14001 reject_bad_reg (Rd);
14002 reject_bad_reg (Rn);
14003 reject_bad_reg (Rm);
14005 inst.instruction |= Rd << 8;
14006 inst.instruction |= Rn << 16;
14007 inst.instruction |= Rm;
14008 inst.instruction |= inst.operands[3].imm << 4;
14016 Rd = inst.operands[0].reg;
14017 Rm = inst.operands[1].reg;
14019 reject_bad_reg (Rd);
14020 reject_bad_reg (Rm);
14022 if (inst.instruction <= 0xffff
14023 && inst.size_req != 4
14024 && Rd <= 7 && Rm <= 7
14025 && (!inst.operands[2].present || inst.operands[2].imm == 0))
14027 inst.instruction = THUMB_OP16 (inst.instruction);
14028 inst.instruction |= Rd;
14029 inst.instruction |= Rm << 3;
14031 else if (unified_syntax)
14033 if (inst.instruction <= 0xffff)
14034 inst.instruction = THUMB_OP32 (inst.instruction);
14035 inst.instruction |= Rd << 8;
14036 inst.instruction |= Rm;
14037 inst.instruction |= inst.operands[2].imm << 4;
14041 constraint (inst.operands[2].present && inst.operands[2].imm != 0,
14042 _("Thumb encoding does not support rotation"));
14043 constraint (1, BAD_HIREG);
14050 inst.relocs[0].type = BFD_RELOC_ARM_SWI;
14059 half = (inst.instruction & 0x10) != 0;
14060 set_pred_insn_type_last ();
14061 constraint (inst.operands[0].immisreg,
14062 _("instruction requires register index"));
14064 Rn = inst.operands[0].reg;
14065 Rm = inst.operands[0].imm;
14067 if (!ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v8))
14068 constraint (Rn == REG_SP, BAD_SP);
14069 reject_bad_reg (Rm);
14071 constraint (!half && inst.operands[0].shifted,
14072 _("instruction does not allow shifted index"));
14073 inst.instruction |= (Rn << 16) | Rm;
14079 if (!inst.operands[0].present)
14080 inst.operands[0].imm = 0;
14082 if ((unsigned int) inst.operands[0].imm > 255 || inst.size_req == 4)
14084 constraint (inst.size_req == 2,
14085 _("immediate value out of range"));
14086 inst.instruction = THUMB_OP32 (inst.instruction);
14087 inst.instruction |= (inst.operands[0].imm & 0xf000u) << 4;
14088 inst.instruction |= (inst.operands[0].imm & 0x0fffu) << 0;
14092 inst.instruction = THUMB_OP16 (inst.instruction);
14093 inst.instruction |= inst.operands[0].imm;
14096 set_pred_insn_type (NEUTRAL_IT_INSN);
14103 do_t_ssat_usat (0);
14111 Rd = inst.operands[0].reg;
14112 Rn = inst.operands[2].reg;
14114 reject_bad_reg (Rd);
14115 reject_bad_reg (Rn);
14117 inst.instruction |= Rd << 8;
14118 inst.instruction |= inst.operands[1].imm;
14119 inst.instruction |= Rn << 16;
14122 /* Checking the range of the branch offset (VAL) with NBITS bits
14123 and IS_SIGNED signedness. Also checks the LSB to be 0. */
14125 v8_1_branch_value_check (int val, int nbits, int is_signed)
14127 gas_assert (nbits > 0 && nbits <= 32);
14130 int cmp = (1 << (nbits - 1));
14131 if ((val < -cmp) || (val >= cmp) || (val & 0x01))
14136 if ((val <= 0) || (val >= (1 << nbits)) || (val & 0x1))
14142 /* For branches in Armv8.1-M Mainline. */
14144 do_t_branch_future (void)
14146 unsigned long insn = inst.instruction;
14148 inst.instruction = THUMB_OP32 (inst.instruction);
14149 if (inst.operands[0].hasreloc == 0)
14151 if (v8_1_branch_value_check (inst.operands[0].imm, 5, FALSE) == FAIL)
14152 as_bad (BAD_BRANCH_OFF);
14154 inst.instruction |= ((inst.operands[0].imm & 0x1f) >> 1) << 23;
14158 inst.relocs[0].type = BFD_RELOC_THUMB_PCREL_BRANCH5;
14159 inst.relocs[0].pc_rel = 1;
14165 if (inst.operands[1].hasreloc == 0)
14167 int val = inst.operands[1].imm;
14168 if (v8_1_branch_value_check (inst.operands[1].imm, 17, TRUE) == FAIL)
14169 as_bad (BAD_BRANCH_OFF);
14171 int immA = (val & 0x0001f000) >> 12;
14172 int immB = (val & 0x00000ffc) >> 2;
14173 int immC = (val & 0x00000002) >> 1;
14174 inst.instruction |= (immA << 16) | (immB << 1) | (immC << 11);
14178 inst.relocs[1].type = BFD_RELOC_ARM_THUMB_BF17;
14179 inst.relocs[1].pc_rel = 1;
14184 if (inst.operands[1].hasreloc == 0)
14186 int val = inst.operands[1].imm;
14187 if (v8_1_branch_value_check (inst.operands[1].imm, 19, TRUE) == FAIL)
14188 as_bad (BAD_BRANCH_OFF);
14190 int immA = (val & 0x0007f000) >> 12;
14191 int immB = (val & 0x00000ffc) >> 2;
14192 int immC = (val & 0x00000002) >> 1;
14193 inst.instruction |= (immA << 16) | (immB << 1) | (immC << 11);
14197 inst.relocs[1].type = BFD_RELOC_ARM_THUMB_BF19;
14198 inst.relocs[1].pc_rel = 1;
14202 case T_MNEM_bfcsel:
14204 if (inst.operands[1].hasreloc == 0)
14206 int val = inst.operands[1].imm;
14207 int immA = (val & 0x00001000) >> 12;
14208 int immB = (val & 0x00000ffc) >> 2;
14209 int immC = (val & 0x00000002) >> 1;
14210 inst.instruction |= (immA << 16) | (immB << 1) | (immC << 11);
14214 inst.relocs[1].type = BFD_RELOC_ARM_THUMB_BF13;
14215 inst.relocs[1].pc_rel = 1;
14219 if (inst.operands[2].hasreloc == 0)
14221 constraint ((inst.operands[0].hasreloc != 0), BAD_ARGS);
14222 int val2 = inst.operands[2].imm;
14223 int val0 = inst.operands[0].imm & 0x1f;
14224 int diff = val2 - val0;
14226 inst.instruction |= 1 << 17; /* T bit. */
14227 else if (diff != 2)
14228 as_bad (_("out of range label-relative fixup value"));
14232 constraint ((inst.operands[0].hasreloc == 0), BAD_ARGS);
14233 inst.relocs[2].type = BFD_RELOC_THUMB_PCREL_BFCSEL;
14234 inst.relocs[2].pc_rel = 1;
14238 constraint (inst.cond != COND_ALWAYS, BAD_COND);
14239 inst.instruction |= (inst.operands[3].imm & 0xf) << 18;
14244 inst.instruction |= inst.operands[1].reg << 16;
14251 /* Helper function for do_t_loloop to handle relocations. */
14253 v8_1_loop_reloc (int is_le)
14255 if (inst.relocs[0].exp.X_op == O_constant)
14257 int value = inst.relocs[0].exp.X_add_number;
14258 value = (is_le) ? -value : value;
14260 if (v8_1_branch_value_check (value, 12, FALSE) == FAIL)
14261 as_bad (BAD_BRANCH_OFF);
14265 immh = (value & 0x00000ffc) >> 2;
14266 imml = (value & 0x00000002) >> 1;
14268 inst.instruction |= (imml << 11) | (immh << 1);
14272 inst.relocs[0].type = BFD_RELOC_ARM_THUMB_LOOP12;
14273 inst.relocs[0].pc_rel = 1;
14277 /* For shifts in MVE. */
14279 do_mve_scalar_shift (void)
14281 if (!inst.operands[2].present)
14283 inst.operands[2] = inst.operands[1];
14284 inst.operands[1].reg = 0xf;
14287 inst.instruction |= inst.operands[0].reg << 16;
14288 inst.instruction |= inst.operands[1].reg << 8;
14290 if (inst.operands[2].isreg)
14292 /* Assuming Rm is already checked not to be 11x1. */
14293 constraint (inst.operands[2].reg == inst.operands[0].reg, BAD_OVERLAP);
14294 constraint (inst.operands[2].reg == inst.operands[1].reg, BAD_OVERLAP);
14295 inst.instruction |= inst.operands[2].reg << 12;
14299 /* Assuming imm is already checked as [1,32]. */
14300 unsigned int value = inst.operands[2].imm;
14301 inst.instruction |= (value & 0x1c) << 10;
14302 inst.instruction |= (value & 0x03) << 6;
14303 /* Change last 4 bits from 0xd to 0xf. */
14304 inst.instruction |= 0x2;
14308 /* MVE instruction encoder helpers. */
14309 #define M_MNEM_vabav 0xee800f01
14310 #define M_MNEM_vmladav 0xeef00e00
14311 #define M_MNEM_vmladava 0xeef00e20
14312 #define M_MNEM_vmladavx 0xeef01e00
14313 #define M_MNEM_vmladavax 0xeef01e20
14314 #define M_MNEM_vmlsdav 0xeef00e01
14315 #define M_MNEM_vmlsdava 0xeef00e21
14316 #define M_MNEM_vmlsdavx 0xeef01e01
14317 #define M_MNEM_vmlsdavax 0xeef01e21
14318 #define M_MNEM_vmullt 0xee011e00
14319 #define M_MNEM_vmullb 0xee010e00
14320 #define M_MNEM_vst20 0xfc801e00
14321 #define M_MNEM_vst21 0xfc801e20
14322 #define M_MNEM_vst40 0xfc801e01
14323 #define M_MNEM_vst41 0xfc801e21
14324 #define M_MNEM_vst42 0xfc801e41
14325 #define M_MNEM_vst43 0xfc801e61
14326 #define M_MNEM_vld20 0xfc901e00
14327 #define M_MNEM_vld21 0xfc901e20
14328 #define M_MNEM_vld40 0xfc901e01
14329 #define M_MNEM_vld41 0xfc901e21
14330 #define M_MNEM_vld42 0xfc901e41
14331 #define M_MNEM_vld43 0xfc901e61
14332 #define M_MNEM_vstrb 0xec000e00
14333 #define M_MNEM_vstrh 0xec000e10
14334 #define M_MNEM_vstrw 0xec000e40
14335 #define M_MNEM_vstrd 0xec000e50
14336 #define M_MNEM_vldrb 0xec100e00
14337 #define M_MNEM_vldrh 0xec100e10
14338 #define M_MNEM_vldrw 0xec100e40
14339 #define M_MNEM_vldrd 0xec100e50
14340 #define M_MNEM_vmovlt 0xeea01f40
14341 #define M_MNEM_vmovlb 0xeea00f40
14342 #define M_MNEM_vmovnt 0xfe311e81
14343 #define M_MNEM_vmovnb 0xfe310e81
14344 #define M_MNEM_vadc 0xee300f00
14345 #define M_MNEM_vadci 0xee301f00
14346 #define M_MNEM_vbrsr 0xfe011e60
14347 #define M_MNEM_vaddlv 0xee890f00
14348 #define M_MNEM_vaddlva 0xee890f20
14349 #define M_MNEM_vaddv 0xeef10f00
14350 #define M_MNEM_vaddva 0xeef10f20
14351 #define M_MNEM_vddup 0xee011f6e
14352 #define M_MNEM_vdwdup 0xee011f60
14353 #define M_MNEM_vidup 0xee010f6e
14354 #define M_MNEM_viwdup 0xee010f60
14355 #define M_MNEM_vmaxv 0xeee20f00
14356 #define M_MNEM_vmaxav 0xeee00f00
14357 #define M_MNEM_vminv 0xeee20f80
14358 #define M_MNEM_vminav 0xeee00f80
14359 #define M_MNEM_vmlaldav 0xee800e00
14360 #define M_MNEM_vmlaldava 0xee800e20
14361 #define M_MNEM_vmlaldavx 0xee801e00
14362 #define M_MNEM_vmlaldavax 0xee801e20
14363 #define M_MNEM_vmlsldav 0xee800e01
14364 #define M_MNEM_vmlsldava 0xee800e21
14365 #define M_MNEM_vmlsldavx 0xee801e01
14366 #define M_MNEM_vmlsldavax 0xee801e21
14367 #define M_MNEM_vrmlaldavhx 0xee801f00
14368 #define M_MNEM_vrmlaldavhax 0xee801f20
14369 #define M_MNEM_vrmlsldavh 0xfe800e01
14370 #define M_MNEM_vrmlsldavha 0xfe800e21
14371 #define M_MNEM_vrmlsldavhx 0xfe801e01
14372 #define M_MNEM_vrmlsldavhax 0xfe801e21
14373 #define M_MNEM_vqmovnt 0xee331e01
14374 #define M_MNEM_vqmovnb 0xee330e01
14375 #define M_MNEM_vqmovunt 0xee311e81
14376 #define M_MNEM_vqmovunb 0xee310e81
14377 #define M_MNEM_vshrnt 0xee801fc1
14378 #define M_MNEM_vshrnb 0xee800fc1
14379 #define M_MNEM_vrshrnt 0xfe801fc1
14380 #define M_MNEM_vqshrnt 0xee801f40
14381 #define M_MNEM_vqshrnb 0xee800f40
14382 #define M_MNEM_vqshrunt 0xee801fc0
14383 #define M_MNEM_vqshrunb 0xee800fc0
14384 #define M_MNEM_vrshrnb 0xfe800fc1
14385 #define M_MNEM_vqrshrnt 0xee801f41
14386 #define M_MNEM_vqrshrnb 0xee800f41
14387 #define M_MNEM_vqrshrunt 0xfe801fc0
14388 #define M_MNEM_vqrshrunb 0xfe800fc0
14390 /* Neon instruction encoder helpers. */
14392 /* Encodings for the different types for various Neon opcodes. */
14394 /* An "invalid" code for the following tables. */
14397 struct neon_tab_entry
14400 unsigned float_or_poly;
14401 unsigned scalar_or_imm;
14404 /* Map overloaded Neon opcodes to their respective encodings. */
14405 #define NEON_ENC_TAB \
14406 X(vabd, 0x0000700, 0x1200d00, N_INV), \
14407 X(vabdl, 0x0800700, N_INV, N_INV), \
14408 X(vmax, 0x0000600, 0x0000f00, N_INV), \
14409 X(vmin, 0x0000610, 0x0200f00, N_INV), \
14410 X(vpadd, 0x0000b10, 0x1000d00, N_INV), \
14411 X(vpmax, 0x0000a00, 0x1000f00, N_INV), \
14412 X(vpmin, 0x0000a10, 0x1200f00, N_INV), \
14413 X(vadd, 0x0000800, 0x0000d00, N_INV), \
14414 X(vaddl, 0x0800000, N_INV, N_INV), \
14415 X(vsub, 0x1000800, 0x0200d00, N_INV), \
14416 X(vsubl, 0x0800200, N_INV, N_INV), \
14417 X(vceq, 0x1000810, 0x0000e00, 0x1b10100), \
14418 X(vcge, 0x0000310, 0x1000e00, 0x1b10080), \
14419 X(vcgt, 0x0000300, 0x1200e00, 0x1b10000), \
14420 /* Register variants of the following two instructions are encoded as
14421 vcge / vcgt with the operands reversed. */ \
14422 X(vclt, 0x0000300, 0x1200e00, 0x1b10200), \
14423 X(vcle, 0x0000310, 0x1000e00, 0x1b10180), \
14424 X(vfma, N_INV, 0x0000c10, N_INV), \
14425 X(vfms, N_INV, 0x0200c10, N_INV), \
14426 X(vmla, 0x0000900, 0x0000d10, 0x0800040), \
14427 X(vmls, 0x1000900, 0x0200d10, 0x0800440), \
14428 X(vmul, 0x0000910, 0x1000d10, 0x0800840), \
14429 X(vmull, 0x0800c00, 0x0800e00, 0x0800a40), /* polynomial not float. */ \
14430 X(vmlal, 0x0800800, N_INV, 0x0800240), \
14431 X(vmlsl, 0x0800a00, N_INV, 0x0800640), \
14432 X(vqdmlal, 0x0800900, N_INV, 0x0800340), \
14433 X(vqdmlsl, 0x0800b00, N_INV, 0x0800740), \
14434 X(vqdmull, 0x0800d00, N_INV, 0x0800b40), \
14435 X(vqdmulh, 0x0000b00, N_INV, 0x0800c40), \
14436 X(vqrdmulh, 0x1000b00, N_INV, 0x0800d40), \
14437 X(vqrdmlah, 0x3000b10, N_INV, 0x0800e40), \
14438 X(vqrdmlsh, 0x3000c10, N_INV, 0x0800f40), \
14439 X(vshl, 0x0000400, N_INV, 0x0800510), \
14440 X(vqshl, 0x0000410, N_INV, 0x0800710), \
14441 X(vand, 0x0000110, N_INV, 0x0800030), \
14442 X(vbic, 0x0100110, N_INV, 0x0800030), \
14443 X(veor, 0x1000110, N_INV, N_INV), \
14444 X(vorn, 0x0300110, N_INV, 0x0800010), \
14445 X(vorr, 0x0200110, N_INV, 0x0800010), \
14446 X(vmvn, 0x1b00580, N_INV, 0x0800030), \
14447 X(vshll, 0x1b20300, N_INV, 0x0800a10), /* max shift, immediate. */ \
14448 X(vcvt, 0x1b30600, N_INV, 0x0800e10), /* integer, fixed-point. */ \
14449 X(vdup, 0xe800b10, N_INV, 0x1b00c00), /* arm, scalar. */ \
14450 X(vld1, 0x0200000, 0x0a00000, 0x0a00c00), /* interlv, lane, dup. */ \
14451 X(vst1, 0x0000000, 0x0800000, N_INV), \
14452 X(vld2, 0x0200100, 0x0a00100, 0x0a00d00), \
14453 X(vst2, 0x0000100, 0x0800100, N_INV), \
14454 X(vld3, 0x0200200, 0x0a00200, 0x0a00e00), \
14455 X(vst3, 0x0000200, 0x0800200, N_INV), \
14456 X(vld4, 0x0200300, 0x0a00300, 0x0a00f00), \
14457 X(vst4, 0x0000300, 0x0800300, N_INV), \
14458 X(vmovn, 0x1b20200, N_INV, N_INV), \
14459 X(vtrn, 0x1b20080, N_INV, N_INV), \
14460 X(vqmovn, 0x1b20200, N_INV, N_INV), \
14461 X(vqmovun, 0x1b20240, N_INV, N_INV), \
14462 X(vnmul, 0xe200a40, 0xe200b40, N_INV), \
14463 X(vnmla, 0xe100a40, 0xe100b40, N_INV), \
14464 X(vnmls, 0xe100a00, 0xe100b00, N_INV), \
14465 X(vfnma, 0xe900a40, 0xe900b40, N_INV), \
14466 X(vfnms, 0xe900a00, 0xe900b00, N_INV), \
14467 X(vcmp, 0xeb40a40, 0xeb40b40, N_INV), \
14468 X(vcmpz, 0xeb50a40, 0xeb50b40, N_INV), \
14469 X(vcmpe, 0xeb40ac0, 0xeb40bc0, N_INV), \
14470 X(vcmpez, 0xeb50ac0, 0xeb50bc0, N_INV), \
14471 X(vseleq, 0xe000a00, N_INV, N_INV), \
14472 X(vselvs, 0xe100a00, N_INV, N_INV), \
14473 X(vselge, 0xe200a00, N_INV, N_INV), \
14474 X(vselgt, 0xe300a00, N_INV, N_INV), \
14475 X(vmaxnm, 0xe800a00, 0x3000f10, N_INV), \
14476 X(vminnm, 0xe800a40, 0x3200f10, N_INV), \
14477 X(vcvta, 0xebc0a40, 0x3bb0000, N_INV), \
14478 X(vrintr, 0xeb60a40, 0x3ba0400, N_INV), \
14479 X(vrinta, 0xeb80a40, 0x3ba0400, N_INV), \
14480 X(aes, 0x3b00300, N_INV, N_INV), \
14481 X(sha3op, 0x2000c00, N_INV, N_INV), \
14482 X(sha1h, 0x3b902c0, N_INV, N_INV), \
14483 X(sha2op, 0x3ba0380, N_INV, N_INV)
14487 #define X(OPC,I,F,S) N_MNEM_##OPC
14492 static const struct neon_tab_entry neon_enc_tab[] =
14494 #define X(OPC,I,F,S) { (I), (F), (S) }
14499 /* Do not use these macros; instead, use NEON_ENCODE defined below. */
14500 #define NEON_ENC_INTEGER_(X) (neon_enc_tab[(X) & 0x0fffffff].integer)
14501 #define NEON_ENC_ARMREG_(X) (neon_enc_tab[(X) & 0x0fffffff].integer)
14502 #define NEON_ENC_POLY_(X) (neon_enc_tab[(X) & 0x0fffffff].float_or_poly)
14503 #define NEON_ENC_FLOAT_(X) (neon_enc_tab[(X) & 0x0fffffff].float_or_poly)
14504 #define NEON_ENC_SCALAR_(X) (neon_enc_tab[(X) & 0x0fffffff].scalar_or_imm)
14505 #define NEON_ENC_IMMED_(X) (neon_enc_tab[(X) & 0x0fffffff].scalar_or_imm)
14506 #define NEON_ENC_INTERLV_(X) (neon_enc_tab[(X) & 0x0fffffff].integer)
14507 #define NEON_ENC_LANE_(X) (neon_enc_tab[(X) & 0x0fffffff].float_or_poly)
14508 #define NEON_ENC_DUP_(X) (neon_enc_tab[(X) & 0x0fffffff].scalar_or_imm)
14509 #define NEON_ENC_SINGLE_(X) \
14510 ((neon_enc_tab[(X) & 0x0fffffff].integer) | ((X) & 0xf0000000))
14511 #define NEON_ENC_DOUBLE_(X) \
14512 ((neon_enc_tab[(X) & 0x0fffffff].float_or_poly) | ((X) & 0xf0000000))
14513 #define NEON_ENC_FPV8_(X) \
14514 ((neon_enc_tab[(X) & 0x0fffffff].integer) | ((X) & 0xf000000))
14516 #define NEON_ENCODE(type, inst) \
14519 inst.instruction = NEON_ENC_##type##_ (inst.instruction); \
14520 inst.is_neon = 1; \
14524 #define check_neon_suffixes \
14527 if (!inst.error && inst.vectype.elems > 0 && !inst.is_neon) \
14529 as_bad (_("invalid neon suffix for non neon instruction")); \
14535 /* Define shapes for instruction operands. The following mnemonic characters
14536 are used in this table:
14538 F - VFP S<n> register
14539 D - Neon D<n> register
14540 Q - Neon Q<n> register
14544 L - D<n> register list
14546 This table is used to generate various data:
14547 - enumerations of the form NS_DDR to be used as arguments to
14549 - a table classifying shapes into single, double, quad, mixed.
14550 - a table used to drive neon_select_shape. */
14552 #define NEON_SHAPE_DEF \
14553 X(4, (R, R, Q, Q), QUAD), \
14554 X(4, (Q, R, R, I), QUAD), \
14555 X(4, (R, R, S, S), QUAD), \
14556 X(4, (S, S, R, R), QUAD), \
14557 X(3, (Q, R, I), QUAD), \
14558 X(3, (I, Q, Q), QUAD), \
14559 X(3, (I, Q, R), QUAD), \
14560 X(3, (R, Q, Q), QUAD), \
14561 X(3, (D, D, D), DOUBLE), \
14562 X(3, (Q, Q, Q), QUAD), \
14563 X(3, (D, D, I), DOUBLE), \
14564 X(3, (Q, Q, I), QUAD), \
14565 X(3, (D, D, S), DOUBLE), \
14566 X(3, (Q, Q, S), QUAD), \
14567 X(3, (Q, Q, R), QUAD), \
14568 X(3, (R, R, Q), QUAD), \
14569 X(2, (R, Q), QUAD), \
14570 X(2, (D, D), DOUBLE), \
14571 X(2, (Q, Q), QUAD), \
14572 X(2, (D, S), DOUBLE), \
14573 X(2, (Q, S), QUAD), \
14574 X(2, (D, R), DOUBLE), \
14575 X(2, (Q, R), QUAD), \
14576 X(2, (D, I), DOUBLE), \
14577 X(2, (Q, I), QUAD), \
14578 X(3, (D, L, D), DOUBLE), \
14579 X(2, (D, Q), MIXED), \
14580 X(2, (Q, D), MIXED), \
14581 X(3, (D, Q, I), MIXED), \
14582 X(3, (Q, D, I), MIXED), \
14583 X(3, (Q, D, D), MIXED), \
14584 X(3, (D, Q, Q), MIXED), \
14585 X(3, (Q, Q, D), MIXED), \
14586 X(3, (Q, D, S), MIXED), \
14587 X(3, (D, Q, S), MIXED), \
14588 X(4, (D, D, D, I), DOUBLE), \
14589 X(4, (Q, Q, Q, I), QUAD), \
14590 X(4, (D, D, S, I), DOUBLE), \
14591 X(4, (Q, Q, S, I), QUAD), \
14592 X(2, (F, F), SINGLE), \
14593 X(3, (F, F, F), SINGLE), \
14594 X(2, (F, I), SINGLE), \
14595 X(2, (F, D), MIXED), \
14596 X(2, (D, F), MIXED), \
14597 X(3, (F, F, I), MIXED), \
14598 X(4, (R, R, F, F), SINGLE), \
14599 X(4, (F, F, R, R), SINGLE), \
14600 X(3, (D, R, R), DOUBLE), \
14601 X(3, (R, R, D), DOUBLE), \
14602 X(2, (S, R), SINGLE), \
14603 X(2, (R, S), SINGLE), \
14604 X(2, (F, R), SINGLE), \
14605 X(2, (R, F), SINGLE), \
14606 /* Used for MVE tail predicated loop instructions. */\
14607 X(2, (R, R), QUAD), \
14608 /* Half float shape supported so far. */\
14609 X (2, (H, D), MIXED), \
14610 X (2, (D, H), MIXED), \
14611 X (2, (H, F), MIXED), \
14612 X (2, (F, H), MIXED), \
14613 X (2, (H, H), HALF), \
14614 X (2, (H, R), HALF), \
14615 X (2, (R, H), HALF), \
14616 X (2, (H, I), HALF), \
14617 X (3, (H, H, H), HALF), \
14618 X (3, (H, F, I), MIXED), \
14619 X (3, (F, H, I), MIXED), \
14620 X (3, (D, H, H), MIXED), \
14621 X (3, (D, H, S), MIXED)
14623 #define S2(A,B) NS_##A##B
14624 #define S3(A,B,C) NS_##A##B##C
14625 #define S4(A,B,C,D) NS_##A##B##C##D
14627 #define X(N, L, C) S##N L
14640 enum neon_shape_class
14649 #define X(N, L, C) SC_##C
14651 static enum neon_shape_class neon_shape_class[] =
14670 /* Register widths of above. */
14671 static unsigned neon_shape_el_size[] =
14683 struct neon_shape_info
14686 enum neon_shape_el el[NEON_MAX_TYPE_ELS];
14689 #define S2(A,B) { SE_##A, SE_##B }
14690 #define S3(A,B,C) { SE_##A, SE_##B, SE_##C }
14691 #define S4(A,B,C,D) { SE_##A, SE_##B, SE_##C, SE_##D }
14693 #define X(N, L, C) { N, S##N L }
14695 static struct neon_shape_info neon_shape_tab[] =
14705 /* Bit masks used in type checking given instructions.
14706 'N_EQK' means the type must be the same as (or based on in some way) the key
14707 type, which itself is marked with the 'N_KEY' bit. If the 'N_EQK' bit is
14708 set, various other bits can be set as well in order to modify the meaning of
14709 the type constraint. */
14711 enum neon_type_mask
14735 N_KEY = 0x1000000, /* Key element (main type specifier). */
14736 N_EQK = 0x2000000, /* Given operand has the same type & size as the key. */
14737 N_VFP = 0x4000000, /* VFP mode: operand size must match register width. */
14738 N_UNT = 0x8000000, /* Must be explicitly untyped. */
14739 N_DBL = 0x0000001, /* If N_EQK, this operand is twice the size. */
14740 N_HLF = 0x0000002, /* If N_EQK, this operand is half the size. */
14741 N_SGN = 0x0000004, /* If N_EQK, this operand is forced to be signed. */
14742 N_UNS = 0x0000008, /* If N_EQK, this operand is forced to be unsigned. */
14743 N_INT = 0x0000010, /* If N_EQK, this operand is forced to be integer. */
14744 N_FLT = 0x0000020, /* If N_EQK, this operand is forced to be float. */
14745 N_SIZ = 0x0000040, /* If N_EQK, this operand is forced to be size-only. */
14747 N_MAX_NONSPECIAL = N_P64
14750 #define N_ALLMODS (N_DBL | N_HLF | N_SGN | N_UNS | N_INT | N_FLT | N_SIZ)
14752 #define N_SU_ALL (N_S8 | N_S16 | N_S32 | N_S64 | N_U8 | N_U16 | N_U32 | N_U64)
14753 #define N_SU_32 (N_S8 | N_S16 | N_S32 | N_U8 | N_U16 | N_U32)
14754 #define N_SU_16_64 (N_S16 | N_S32 | N_S64 | N_U16 | N_U32 | N_U64)
14755 #define N_S_32 (N_S8 | N_S16 | N_S32)
14756 #define N_F_16_32 (N_F16 | N_F32)
14757 #define N_SUF_32 (N_SU_32 | N_F_16_32)
14758 #define N_I_ALL (N_I8 | N_I16 | N_I32 | N_I64)
14759 #define N_IF_32 (N_I8 | N_I16 | N_I32 | N_F16 | N_F32)
14760 #define N_F_ALL (N_F16 | N_F32 | N_F64)
14761 #define N_I_MVE (N_I8 | N_I16 | N_I32)
14762 #define N_F_MVE (N_F16 | N_F32)
14763 #define N_SU_MVE (N_S8 | N_S16 | N_S32 | N_U8 | N_U16 | N_U32)
14765 /* Pass this as the first type argument to neon_check_type to ignore types
14767 #define N_IGNORE_TYPE (N_KEY | N_EQK)
14769 /* Select a "shape" for the current instruction (describing register types or
14770 sizes) from a list of alternatives. Return NS_NULL if the current instruction
14771 doesn't fit. For non-polymorphic shapes, checking is usually done as a
14772 function of operand parsing, so this function doesn't need to be called.
14773 Shapes should be listed in order of decreasing length. */
14775 static enum neon_shape
14776 neon_select_shape (enum neon_shape shape, ...)
14779 enum neon_shape first_shape = shape;
14781 /* Fix missing optional operands. FIXME: we don't know at this point how
14782 many arguments we should have, so this makes the assumption that we have
14783 > 1. This is true of all current Neon opcodes, I think, but may not be
14784 true in the future. */
14785 if (!inst.operands[1].present)
14786 inst.operands[1] = inst.operands[0];
14788 va_start (ap, shape);
14790 for (; shape != NS_NULL; shape = (enum neon_shape) va_arg (ap, int))
14795 for (j = 0; j < neon_shape_tab[shape].els; j++)
14797 if (!inst.operands[j].present)
14803 switch (neon_shape_tab[shape].el[j])
14805 /* If a .f16, .16, .u16, .s16 type specifier is given over
14806 a VFP single precision register operand, it's essentially
14807 means only half of the register is used.
14809 If the type specifier is given after the mnemonics, the
14810 information is stored in inst.vectype. If the type specifier
14811 is given after register operand, the information is stored
14812 in inst.operands[].vectype.
14814 When there is only one type specifier, and all the register
14815 operands are the same type of hardware register, the type
14816 specifier applies to all register operands.
14818 If no type specifier is given, the shape is inferred from
14819 operand information.
14822 vadd.f16 s0, s1, s2: NS_HHH
14823 vabs.f16 s0, s1: NS_HH
14824 vmov.f16 s0, r1: NS_HR
14825 vmov.f16 r0, s1: NS_RH
14826 vcvt.f16 r0, s1: NS_RH
14827 vcvt.f16.s32 s2, s2, #29: NS_HFI
14828 vcvt.f16.s32 s2, s2: NS_HF
14831 if (!(inst.operands[j].isreg
14832 && inst.operands[j].isvec
14833 && inst.operands[j].issingle
14834 && !inst.operands[j].isquad
14835 && ((inst.vectype.elems == 1
14836 && inst.vectype.el[0].size == 16)
14837 || (inst.vectype.elems > 1
14838 && inst.vectype.el[j].size == 16)
14839 || (inst.vectype.elems == 0
14840 && inst.operands[j].vectype.type != NT_invtype
14841 && inst.operands[j].vectype.size == 16))))
14846 if (!(inst.operands[j].isreg
14847 && inst.operands[j].isvec
14848 && inst.operands[j].issingle
14849 && !inst.operands[j].isquad
14850 && ((inst.vectype.elems == 1 && inst.vectype.el[0].size == 32)
14851 || (inst.vectype.elems > 1 && inst.vectype.el[j].size == 32)
14852 || (inst.vectype.elems == 0
14853 && (inst.operands[j].vectype.size == 32
14854 || inst.operands[j].vectype.type == NT_invtype)))))
14859 if (!(inst.operands[j].isreg
14860 && inst.operands[j].isvec
14861 && !inst.operands[j].isquad
14862 && !inst.operands[j].issingle))
14867 if (!(inst.operands[j].isreg
14868 && !inst.operands[j].isvec))
14873 if (!(inst.operands[j].isreg
14874 && inst.operands[j].isvec
14875 && inst.operands[j].isquad
14876 && !inst.operands[j].issingle))
14881 if (!(!inst.operands[j].isreg
14882 && !inst.operands[j].isscalar))
14887 if (!(!inst.operands[j].isreg
14888 && inst.operands[j].isscalar))
14898 if (matches && (j >= ARM_IT_MAX_OPERANDS || !inst.operands[j].present))
14899 /* We've matched all the entries in the shape table, and we don't
14900 have any left over operands which have not been matched. */
14906 if (shape == NS_NULL && first_shape != NS_NULL)
14907 first_error (_("invalid instruction shape"));
14912 /* True if SHAPE is predominantly a quadword operation (most of the time, this
14913 means the Q bit should be set). */
14916 neon_quad (enum neon_shape shape)
14918 return neon_shape_class[shape] == SC_QUAD;
14922 neon_modify_type_size (unsigned typebits, enum neon_el_type *g_type,
14925 /* Allow modification to be made to types which are constrained to be
14926 based on the key element, based on bits set alongside N_EQK. */
14927 if ((typebits & N_EQK) != 0)
14929 if ((typebits & N_HLF) != 0)
14931 else if ((typebits & N_DBL) != 0)
14933 if ((typebits & N_SGN) != 0)
14934 *g_type = NT_signed;
14935 else if ((typebits & N_UNS) != 0)
14936 *g_type = NT_unsigned;
14937 else if ((typebits & N_INT) != 0)
14938 *g_type = NT_integer;
14939 else if ((typebits & N_FLT) != 0)
14940 *g_type = NT_float;
14941 else if ((typebits & N_SIZ) != 0)
14942 *g_type = NT_untyped;
14946 /* Return operand OPNO promoted by bits set in THISARG. KEY should be the "key"
14947 operand type, i.e. the single type specified in a Neon instruction when it
14948 is the only one given. */
14950 static struct neon_type_el
14951 neon_type_promote (struct neon_type_el *key, unsigned thisarg)
14953 struct neon_type_el dest = *key;
14955 gas_assert ((thisarg & N_EQK) != 0);
14957 neon_modify_type_size (thisarg, &dest.type, &dest.size);
14962 /* Convert Neon type and size into compact bitmask representation. */
14964 static enum neon_type_mask
14965 type_chk_of_el_type (enum neon_el_type type, unsigned size)
14972 case 8: return N_8;
14973 case 16: return N_16;
14974 case 32: return N_32;
14975 case 64: return N_64;
14983 case 8: return N_I8;
14984 case 16: return N_I16;
14985 case 32: return N_I32;
14986 case 64: return N_I64;
14994 case 16: return N_F16;
14995 case 32: return N_F32;
14996 case 64: return N_F64;
15004 case 8: return N_P8;
15005 case 16: return N_P16;
15006 case 64: return N_P64;
15014 case 8: return N_S8;
15015 case 16: return N_S16;
15016 case 32: return N_S32;
15017 case 64: return N_S64;
15025 case 8: return N_U8;
15026 case 16: return N_U16;
15027 case 32: return N_U32;
15028 case 64: return N_U64;
15039 /* Convert compact Neon bitmask type representation to a type and size. Only
15040 handles the case where a single bit is set in the mask. */
15043 el_type_of_type_chk (enum neon_el_type *type, unsigned *size,
15044 enum neon_type_mask mask)
15046 if ((mask & N_EQK) != 0)
15049 if ((mask & (N_S8 | N_U8 | N_I8 | N_8 | N_P8)) != 0)
15051 else if ((mask & (N_S16 | N_U16 | N_I16 | N_16 | N_F16 | N_P16)) != 0)
15053 else if ((mask & (N_S32 | N_U32 | N_I32 | N_32 | N_F32)) != 0)
15055 else if ((mask & (N_S64 | N_U64 | N_I64 | N_64 | N_F64 | N_P64)) != 0)
15060 if ((mask & (N_S8 | N_S16 | N_S32 | N_S64)) != 0)
15062 else if ((mask & (N_U8 | N_U16 | N_U32 | N_U64)) != 0)
15063 *type = NT_unsigned;
15064 else if ((mask & (N_I8 | N_I16 | N_I32 | N_I64)) != 0)
15065 *type = NT_integer;
15066 else if ((mask & (N_8 | N_16 | N_32 | N_64)) != 0)
15067 *type = NT_untyped;
15068 else if ((mask & (N_P8 | N_P16 | N_P64)) != 0)
15070 else if ((mask & (N_F_ALL)) != 0)
15078 /* Modify a bitmask of allowed types. This is only needed for type
15082 modify_types_allowed (unsigned allowed, unsigned mods)
15085 enum neon_el_type type;
15091 for (i = 1; i <= N_MAX_NONSPECIAL; i <<= 1)
15093 if (el_type_of_type_chk (&type, &size,
15094 (enum neon_type_mask) (allowed & i)) == SUCCESS)
15096 neon_modify_type_size (mods, &type, &size);
15097 destmask |= type_chk_of_el_type (type, size);
15104 /* Check type and return type classification.
15105 The manual states (paraphrase): If one datatype is given, it indicates the
15107 - the second operand, if there is one
15108 - the operand, if there is no second operand
15109 - the result, if there are no operands.
15110 This isn't quite good enough though, so we use a concept of a "key" datatype
15111 which is set on a per-instruction basis, which is the one which matters when
15112 only one data type is written.
15113 Note: this function has side-effects (e.g. filling in missing operands). All
15114 Neon instructions should call it before performing bit encoding. */
15116 static struct neon_type_el
15117 neon_check_type (unsigned els, enum neon_shape ns, ...)
15120 unsigned i, pass, key_el = 0;
15121 unsigned types[NEON_MAX_TYPE_ELS];
15122 enum neon_el_type k_type = NT_invtype;
15123 unsigned k_size = -1u;
15124 struct neon_type_el badtype = {NT_invtype, -1};
15125 unsigned key_allowed = 0;
15127 /* Optional registers in Neon instructions are always (not) in operand 1.
15128 Fill in the missing operand here, if it was omitted. */
15129 if (els > 1 && !inst.operands[1].present)
15130 inst.operands[1] = inst.operands[0];
15132 /* Suck up all the varargs. */
15134 for (i = 0; i < els; i++)
15136 unsigned thisarg = va_arg (ap, unsigned);
15137 if (thisarg == N_IGNORE_TYPE)
15142 types[i] = thisarg;
15143 if ((thisarg & N_KEY) != 0)
15148 if (inst.vectype.elems > 0)
15149 for (i = 0; i < els; i++)
15150 if (inst.operands[i].vectype.type != NT_invtype)
15152 first_error (_("types specified in both the mnemonic and operands"));
15156 /* Duplicate inst.vectype elements here as necessary.
15157 FIXME: No idea if this is exactly the same as the ARM assembler,
15158 particularly when an insn takes one register and one non-register
15160 if (inst.vectype.elems == 1 && els > 1)
15163 inst.vectype.elems = els;
15164 inst.vectype.el[key_el] = inst.vectype.el[0];
15165 for (j = 0; j < els; j++)
15167 inst.vectype.el[j] = neon_type_promote (&inst.vectype.el[key_el],
15170 else if (inst.vectype.elems == 0 && els > 0)
15173 /* No types were given after the mnemonic, so look for types specified
15174 after each operand. We allow some flexibility here; as long as the
15175 "key" operand has a type, we can infer the others. */
15176 for (j = 0; j < els; j++)
15177 if (inst.operands[j].vectype.type != NT_invtype)
15178 inst.vectype.el[j] = inst.operands[j].vectype;
15180 if (inst.operands[key_el].vectype.type != NT_invtype)
15182 for (j = 0; j < els; j++)
15183 if (inst.operands[j].vectype.type == NT_invtype)
15184 inst.vectype.el[j] = neon_type_promote (&inst.vectype.el[key_el],
15189 first_error (_("operand types can't be inferred"));
15193 else if (inst.vectype.elems != els)
15195 first_error (_("type specifier has the wrong number of parts"));
15199 for (pass = 0; pass < 2; pass++)
15201 for (i = 0; i < els; i++)
15203 unsigned thisarg = types[i];
15204 unsigned types_allowed = ((thisarg & N_EQK) != 0 && pass != 0)
15205 ? modify_types_allowed (key_allowed, thisarg) : thisarg;
15206 enum neon_el_type g_type = inst.vectype.el[i].type;
15207 unsigned g_size = inst.vectype.el[i].size;
15209 /* Decay more-specific signed & unsigned types to sign-insensitive
15210 integer types if sign-specific variants are unavailable. */
15211 if ((g_type == NT_signed || g_type == NT_unsigned)
15212 && (types_allowed & N_SU_ALL) == 0)
15213 g_type = NT_integer;
15215 /* If only untyped args are allowed, decay any more specific types to
15216 them. Some instructions only care about signs for some element
15217 sizes, so handle that properly. */
15218 if (((types_allowed & N_UNT) == 0)
15219 && ((g_size == 8 && (types_allowed & N_8) != 0)
15220 || (g_size == 16 && (types_allowed & N_16) != 0)
15221 || (g_size == 32 && (types_allowed & N_32) != 0)
15222 || (g_size == 64 && (types_allowed & N_64) != 0)))
15223 g_type = NT_untyped;
15227 if ((thisarg & N_KEY) != 0)
15231 key_allowed = thisarg & ~N_KEY;
15233 /* Check architecture constraint on FP16 extension. */
15235 && k_type == NT_float
15236 && ! ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_fp16))
15238 inst.error = _(BAD_FP16);
15245 if ((thisarg & N_VFP) != 0)
15247 enum neon_shape_el regshape;
15248 unsigned regwidth, match;
15250 /* PR 11136: Catch the case where we are passed a shape of NS_NULL. */
15253 first_error (_("invalid instruction shape"));
15256 regshape = neon_shape_tab[ns].el[i];
15257 regwidth = neon_shape_el_size[regshape];
15259 /* In VFP mode, operands must match register widths. If we
15260 have a key operand, use its width, else use the width of
15261 the current operand. */
15267 /* FP16 will use a single precision register. */
15268 if (regwidth == 32 && match == 16)
15270 if (ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_fp16))
15274 inst.error = _(BAD_FP16);
15279 if (regwidth != match)
15281 first_error (_("operand size must match register width"));
15286 if ((thisarg & N_EQK) == 0)
15288 unsigned given_type = type_chk_of_el_type (g_type, g_size);
15290 if ((given_type & types_allowed) == 0)
15292 first_error (BAD_SIMD_TYPE);
15298 enum neon_el_type mod_k_type = k_type;
15299 unsigned mod_k_size = k_size;
15300 neon_modify_type_size (thisarg, &mod_k_type, &mod_k_size);
15301 if (g_type != mod_k_type || g_size != mod_k_size)
15303 first_error (_("inconsistent types in Neon instruction"));
15311 return inst.vectype.el[key_el];
15314 /* Neon-style VFP instruction forwarding. */
15316 /* Thumb VFP instructions have 0xE in the condition field. */
15319 do_vfp_cond_or_thumb (void)
15324 inst.instruction |= 0xe0000000;
15326 inst.instruction |= inst.cond << 28;
15329 /* Look up and encode a simple mnemonic, for use as a helper function for the
15330 Neon-style VFP syntax. This avoids duplication of bits of the insns table,
15331 etc. It is assumed that operand parsing has already been done, and that the
15332 operands are in the form expected by the given opcode (this isn't necessarily
15333 the same as the form in which they were parsed, hence some massaging must
15334 take place before this function is called).
15335 Checks current arch version against that in the looked-up opcode. */
15338 do_vfp_nsyn_opcode (const char *opname)
15340 const struct asm_opcode *opcode;
15342 opcode = (const struct asm_opcode *) hash_find (arm_ops_hsh, opname);
15347 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant,
15348 thumb_mode ? *opcode->tvariant : *opcode->avariant),
15355 inst.instruction = opcode->tvalue;
15356 opcode->tencode ();
15360 inst.instruction = (inst.cond << 28) | opcode->avalue;
15361 opcode->aencode ();
15366 do_vfp_nsyn_add_sub (enum neon_shape rs)
15368 int is_add = (inst.instruction & 0x0fffffff) == N_MNEM_vadd;
15370 if (rs == NS_FFF || rs == NS_HHH)
15373 do_vfp_nsyn_opcode ("fadds");
15375 do_vfp_nsyn_opcode ("fsubs");
15377 /* ARMv8.2 fp16 instruction. */
15379 do_scalar_fp16_v82_encode ();
15384 do_vfp_nsyn_opcode ("faddd");
15386 do_vfp_nsyn_opcode ("fsubd");
15390 /* Check operand types to see if this is a VFP instruction, and if so call
15394 try_vfp_nsyn (int args, void (*pfn) (enum neon_shape))
15396 enum neon_shape rs;
15397 struct neon_type_el et;
15402 rs = neon_select_shape (NS_HH, NS_FF, NS_DD, NS_NULL);
15403 et = neon_check_type (2, rs, N_EQK | N_VFP, N_F_ALL | N_KEY | N_VFP);
15407 rs = neon_select_shape (NS_HHH, NS_FFF, NS_DDD, NS_NULL);
15408 et = neon_check_type (3, rs, N_EQK | N_VFP, N_EQK | N_VFP,
15409 N_F_ALL | N_KEY | N_VFP);
15416 if (et.type != NT_invtype)
15427 do_vfp_nsyn_mla_mls (enum neon_shape rs)
15429 int is_mla = (inst.instruction & 0x0fffffff) == N_MNEM_vmla;
15431 if (rs == NS_FFF || rs == NS_HHH)
15434 do_vfp_nsyn_opcode ("fmacs");
15436 do_vfp_nsyn_opcode ("fnmacs");
15438 /* ARMv8.2 fp16 instruction. */
15440 do_scalar_fp16_v82_encode ();
15445 do_vfp_nsyn_opcode ("fmacd");
15447 do_vfp_nsyn_opcode ("fnmacd");
15452 do_vfp_nsyn_fma_fms (enum neon_shape rs)
15454 int is_fma = (inst.instruction & 0x0fffffff) == N_MNEM_vfma;
15456 if (rs == NS_FFF || rs == NS_HHH)
15459 do_vfp_nsyn_opcode ("ffmas");
15461 do_vfp_nsyn_opcode ("ffnmas");
15463 /* ARMv8.2 fp16 instruction. */
15465 do_scalar_fp16_v82_encode ();
15470 do_vfp_nsyn_opcode ("ffmad");
15472 do_vfp_nsyn_opcode ("ffnmad");
15477 do_vfp_nsyn_mul (enum neon_shape rs)
15479 if (rs == NS_FFF || rs == NS_HHH)
15481 do_vfp_nsyn_opcode ("fmuls");
15483 /* ARMv8.2 fp16 instruction. */
15485 do_scalar_fp16_v82_encode ();
15488 do_vfp_nsyn_opcode ("fmuld");
15492 do_vfp_nsyn_abs_neg (enum neon_shape rs)
15494 int is_neg = (inst.instruction & 0x80) != 0;
15495 neon_check_type (2, rs, N_EQK | N_VFP, N_F_ALL | N_VFP | N_KEY);
15497 if (rs == NS_FF || rs == NS_HH)
15500 do_vfp_nsyn_opcode ("fnegs");
15502 do_vfp_nsyn_opcode ("fabss");
15504 /* ARMv8.2 fp16 instruction. */
15506 do_scalar_fp16_v82_encode ();
15511 do_vfp_nsyn_opcode ("fnegd");
15513 do_vfp_nsyn_opcode ("fabsd");
15517 /* Encode single-precision (only!) VFP fldm/fstm instructions. Double precision
15518 insns belong to Neon, and are handled elsewhere. */
15521 do_vfp_nsyn_ldm_stm (int is_dbmode)
15523 int is_ldm = (inst.instruction & (1 << 20)) != 0;
15527 do_vfp_nsyn_opcode ("fldmdbs");
15529 do_vfp_nsyn_opcode ("fldmias");
15534 do_vfp_nsyn_opcode ("fstmdbs");
15536 do_vfp_nsyn_opcode ("fstmias");
15541 do_vfp_nsyn_sqrt (void)
15543 enum neon_shape rs = neon_select_shape (NS_HH, NS_FF, NS_DD, NS_NULL);
15544 neon_check_type (2, rs, N_EQK | N_VFP, N_F_ALL | N_KEY | N_VFP);
15546 if (rs == NS_FF || rs == NS_HH)
15548 do_vfp_nsyn_opcode ("fsqrts");
15550 /* ARMv8.2 fp16 instruction. */
15552 do_scalar_fp16_v82_encode ();
15555 do_vfp_nsyn_opcode ("fsqrtd");
15559 do_vfp_nsyn_div (void)
15561 enum neon_shape rs = neon_select_shape (NS_HHH, NS_FFF, NS_DDD, NS_NULL);
15562 neon_check_type (3, rs, N_EQK | N_VFP, N_EQK | N_VFP,
15563 N_F_ALL | N_KEY | N_VFP);
15565 if (rs == NS_FFF || rs == NS_HHH)
15567 do_vfp_nsyn_opcode ("fdivs");
15569 /* ARMv8.2 fp16 instruction. */
15571 do_scalar_fp16_v82_encode ();
15574 do_vfp_nsyn_opcode ("fdivd");
15578 do_vfp_nsyn_nmul (void)
15580 enum neon_shape rs = neon_select_shape (NS_HHH, NS_FFF, NS_DDD, NS_NULL);
15581 neon_check_type (3, rs, N_EQK | N_VFP, N_EQK | N_VFP,
15582 N_F_ALL | N_KEY | N_VFP);
15584 if (rs == NS_FFF || rs == NS_HHH)
15586 NEON_ENCODE (SINGLE, inst);
15587 do_vfp_sp_dyadic ();
15589 /* ARMv8.2 fp16 instruction. */
15591 do_scalar_fp16_v82_encode ();
15595 NEON_ENCODE (DOUBLE, inst);
15596 do_vfp_dp_rd_rn_rm ();
15598 do_vfp_cond_or_thumb ();
15602 /* Turn a size (8, 16, 32, 64) into the respective bit number minus 3
15606 neon_logbits (unsigned x)
15608 return ffs (x) - 4;
15611 #define LOW4(R) ((R) & 0xf)
15612 #define HI1(R) (((R) >> 4) & 1)
15615 mve_get_vcmp_vpt_cond (struct neon_type_el et)
15620 first_error (BAD_EL_TYPE);
15623 switch (inst.operands[0].imm)
15626 first_error (_("invalid condition"));
15648 /* only accept eq and ne. */
15649 if (inst.operands[0].imm > 1)
15651 first_error (_("invalid condition"));
15654 return inst.operands[0].imm;
15656 if (inst.operands[0].imm == 0x2)
15658 else if (inst.operands[0].imm == 0x8)
15662 first_error (_("invalid condition"));
15666 switch (inst.operands[0].imm)
15669 first_error (_("invalid condition"));
15685 /* Should be unreachable. */
15692 /* We are dealing with a vector predicated block. */
15693 if (inst.operands[0].present)
15695 enum neon_shape rs = neon_select_shape (NS_IQQ, NS_IQR, NS_NULL);
15696 struct neon_type_el et
15697 = neon_check_type (3, rs, N_EQK, N_KEY | N_F_MVE | N_I_MVE | N_SU_32,
15700 unsigned fcond = mve_get_vcmp_vpt_cond (et);
15702 constraint (inst.operands[1].reg > 14, MVE_BAD_QREG);
15704 if (et.type == NT_invtype)
15707 if (et.type == NT_float)
15709 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, mve_fp_ext),
15711 constraint (et.size != 16 && et.size != 32, BAD_EL_TYPE);
15712 inst.instruction |= (et.size == 16) << 28;
15713 inst.instruction |= 0x3 << 20;
15717 constraint (et.size != 8 && et.size != 16 && et.size != 32,
15719 inst.instruction |= 1 << 28;
15720 inst.instruction |= neon_logbits (et.size) << 20;
15723 if (inst.operands[2].isquad)
15725 inst.instruction |= HI1 (inst.operands[2].reg) << 5;
15726 inst.instruction |= LOW4 (inst.operands[2].reg);
15727 inst.instruction |= (fcond & 0x2) >> 1;
15731 if (inst.operands[2].reg == REG_SP)
15732 as_tsktsk (MVE_BAD_SP);
15733 inst.instruction |= 1 << 6;
15734 inst.instruction |= (fcond & 0x2) << 4;
15735 inst.instruction |= inst.operands[2].reg;
15737 inst.instruction |= LOW4 (inst.operands[1].reg) << 16;
15738 inst.instruction |= (fcond & 0x4) << 10;
15739 inst.instruction |= (fcond & 0x1) << 7;
15742 set_pred_insn_type (VPT_INSN);
15744 now_pred.mask = ((inst.instruction & 0x00400000) >> 19)
15745 | ((inst.instruction & 0xe000) >> 13);
15746 now_pred.warn_deprecated = FALSE;
15747 now_pred.type = VECTOR_PRED;
15754 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext), BAD_FPU);
15755 if (!inst.operands[1].isreg || !inst.operands[1].isquad)
15756 first_error (_(reg_expected_msgs[REG_TYPE_MQ]));
15757 if (!inst.operands[2].present)
15758 first_error (_("MVE vector or ARM register expected"));
15759 constraint (inst.operands[1].reg > 14, MVE_BAD_QREG);
15761 /* Deal with 'else' conditional MVE's vcmp, it will be parsed as vcmpe. */
15762 if ((inst.instruction & 0xffffffff) == N_MNEM_vcmpe
15763 && inst.operands[1].isquad)
15765 inst.instruction = N_MNEM_vcmp;
15769 if (inst.cond > COND_ALWAYS)
15770 inst.pred_insn_type = INSIDE_VPT_INSN;
15772 inst.pred_insn_type = MVE_OUTSIDE_PRED_INSN;
15774 enum neon_shape rs = neon_select_shape (NS_IQQ, NS_IQR, NS_NULL);
15775 struct neon_type_el et
15776 = neon_check_type (3, rs, N_EQK, N_KEY | N_F_MVE | N_I_MVE | N_SU_32,
15779 constraint (rs == NS_IQR && inst.operands[2].reg == REG_PC
15780 && !inst.operands[2].iszr, BAD_PC);
15782 unsigned fcond = mve_get_vcmp_vpt_cond (et);
15784 inst.instruction = 0xee010f00;
15785 inst.instruction |= LOW4 (inst.operands[1].reg) << 16;
15786 inst.instruction |= (fcond & 0x4) << 10;
15787 inst.instruction |= (fcond & 0x1) << 7;
15788 if (et.type == NT_float)
15790 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, mve_fp_ext),
15792 inst.instruction |= (et.size == 16) << 28;
15793 inst.instruction |= 0x3 << 20;
15797 inst.instruction |= 1 << 28;
15798 inst.instruction |= neon_logbits (et.size) << 20;
15800 if (inst.operands[2].isquad)
15802 inst.instruction |= HI1 (inst.operands[2].reg) << 5;
15803 inst.instruction |= (fcond & 0x2) >> 1;
15804 inst.instruction |= LOW4 (inst.operands[2].reg);
15808 if (inst.operands[2].reg == REG_SP)
15809 as_tsktsk (MVE_BAD_SP);
15810 inst.instruction |= 1 << 6;
15811 inst.instruction |= (fcond & 0x2) << 4;
15812 inst.instruction |= inst.operands[2].reg;
15820 do_mve_vmaxa_vmina (void)
15822 if (inst.cond > COND_ALWAYS)
15823 inst.pred_insn_type = INSIDE_VPT_INSN;
15825 inst.pred_insn_type = MVE_OUTSIDE_PRED_INSN;
15827 enum neon_shape rs = neon_select_shape (NS_QQ, NS_NULL);
15828 struct neon_type_el et
15829 = neon_check_type (2, rs, N_EQK, N_KEY | N_S8 | N_S16 | N_S32);
15831 inst.instruction |= HI1 (inst.operands[0].reg) << 22;
15832 inst.instruction |= neon_logbits (et.size) << 18;
15833 inst.instruction |= LOW4 (inst.operands[0].reg) << 12;
15834 inst.instruction |= HI1 (inst.operands[1].reg) << 5;
15835 inst.instruction |= LOW4 (inst.operands[1].reg);
15840 do_mve_vfmas (void)
15842 enum neon_shape rs = neon_select_shape (NS_QQR, NS_NULL);
15843 struct neon_type_el et
15844 = neon_check_type (3, rs, N_F_MVE | N_KEY, N_EQK, N_EQK);
15846 if (inst.cond > COND_ALWAYS)
15847 inst.pred_insn_type = INSIDE_VPT_INSN;
15849 inst.pred_insn_type = MVE_OUTSIDE_PRED_INSN;
15851 if (inst.operands[2].reg == REG_SP)
15852 as_tsktsk (MVE_BAD_SP);
15853 else if (inst.operands[2].reg == REG_PC)
15854 as_tsktsk (MVE_BAD_PC);
15856 inst.instruction |= (et.size == 16) << 28;
15857 inst.instruction |= HI1 (inst.operands[0].reg) << 22;
15858 inst.instruction |= LOW4 (inst.operands[1].reg) << 16;
15859 inst.instruction |= LOW4 (inst.operands[0].reg) << 12;
15860 inst.instruction |= HI1 (inst.operands[1].reg) << 7;
15861 inst.instruction |= inst.operands[2].reg;
15866 do_mve_viddup (void)
15868 if (inst.cond > COND_ALWAYS)
15869 inst.pred_insn_type = INSIDE_VPT_INSN;
15871 inst.pred_insn_type = MVE_OUTSIDE_PRED_INSN;
15873 unsigned imm = inst.relocs[0].exp.X_add_number;
15874 constraint (imm != 1 && imm != 2 && imm != 4 && imm != 8,
15875 _("immediate must be either 1, 2, 4 or 8"));
15877 enum neon_shape rs;
15878 struct neon_type_el et;
15880 if (inst.instruction == M_MNEM_vddup || inst.instruction == M_MNEM_vidup)
15882 rs = neon_select_shape (NS_QRI, NS_NULL);
15883 et = neon_check_type (2, rs, N_KEY | N_U8 | N_U16 | N_U32, N_EQK);
15888 constraint ((inst.operands[2].reg % 2) != 1, BAD_EVEN);
15889 if (inst.operands[2].reg == REG_SP)
15890 as_tsktsk (MVE_BAD_SP);
15891 else if (inst.operands[2].reg == REG_PC)
15892 first_error (BAD_PC);
15894 rs = neon_select_shape (NS_QRRI, NS_NULL);
15895 et = neon_check_type (3, rs, N_KEY | N_U8 | N_U16 | N_U32, N_EQK, N_EQK);
15896 Rm = inst.operands[2].reg >> 1;
15898 inst.instruction |= HI1 (inst.operands[0].reg) << 22;
15899 inst.instruction |= neon_logbits (et.size) << 20;
15900 inst.instruction |= inst.operands[1].reg << 16;
15901 inst.instruction |= LOW4 (inst.operands[0].reg) << 12;
15902 inst.instruction |= (imm > 2) << 7;
15903 inst.instruction |= Rm << 1;
15904 inst.instruction |= (imm == 2 || imm == 8);
15909 do_mve_vmlas (void)
15911 enum neon_shape rs = neon_select_shape (NS_QQR, NS_NULL);
15912 struct neon_type_el et
15913 = neon_check_type (3, rs, N_EQK, N_EQK, N_SU_MVE | N_KEY);
15915 if (inst.operands[2].reg == REG_PC)
15916 as_tsktsk (MVE_BAD_PC);
15917 else if (inst.operands[2].reg == REG_SP)
15918 as_tsktsk (MVE_BAD_SP);
15920 if (inst.cond > COND_ALWAYS)
15921 inst.pred_insn_type = INSIDE_VPT_INSN;
15923 inst.pred_insn_type = MVE_OUTSIDE_PRED_INSN;
15925 inst.instruction |= (et.type == NT_unsigned) << 28;
15926 inst.instruction |= HI1 (inst.operands[0].reg) << 22;
15927 inst.instruction |= neon_logbits (et.size) << 20;
15928 inst.instruction |= LOW4 (inst.operands[1].reg) << 16;
15929 inst.instruction |= LOW4 (inst.operands[0].reg) << 12;
15930 inst.instruction |= HI1 (inst.operands[1].reg) << 7;
15931 inst.instruction |= inst.operands[2].reg;
15936 do_mve_vshll (void)
15938 struct neon_type_el et
15939 = neon_check_type (2, NS_QQI, N_EQK, N_S8 | N_U8 | N_S16 | N_U16 | N_KEY);
15941 if (inst.cond > COND_ALWAYS)
15942 inst.pred_insn_type = INSIDE_VPT_INSN;
15944 inst.pred_insn_type = MVE_OUTSIDE_PRED_INSN;
15946 int imm = inst.operands[2].imm;
15947 constraint (imm < 1 || (unsigned)imm > et.size,
15948 _("immediate value out of range"));
15950 if ((unsigned)imm == et.size)
15952 inst.instruction |= neon_logbits (et.size) << 18;
15953 inst.instruction |= 0x110001;
15957 inst.instruction |= (et.size + imm) << 16;
15958 inst.instruction |= 0x800140;
15961 inst.instruction |= (et.type == NT_unsigned) << 28;
15962 inst.instruction |= HI1 (inst.operands[0].reg) << 22;
15963 inst.instruction |= LOW4 (inst.operands[0].reg) << 12;
15964 inst.instruction |= HI1 (inst.operands[1].reg) << 5;
15965 inst.instruction |= LOW4 (inst.operands[1].reg);
15970 do_mve_vshlc (void)
15972 if (inst.cond > COND_ALWAYS)
15973 inst.pred_insn_type = INSIDE_VPT_INSN;
15975 inst.pred_insn_type = MVE_OUTSIDE_PRED_INSN;
15977 if (inst.operands[1].reg == REG_PC)
15978 as_tsktsk (MVE_BAD_PC);
15979 else if (inst.operands[1].reg == REG_SP)
15980 as_tsktsk (MVE_BAD_SP);
15982 int imm = inst.operands[2].imm;
15983 constraint (imm < 1 || imm > 32, _("immediate value out of range"));
15985 inst.instruction |= HI1 (inst.operands[0].reg) << 22;
15986 inst.instruction |= (imm & 0x1f) << 16;
15987 inst.instruction |= LOW4 (inst.operands[0].reg) << 12;
15988 inst.instruction |= inst.operands[1].reg;
15993 do_mve_vshrn (void)
15996 switch (inst.instruction)
15998 case M_MNEM_vshrnt:
15999 case M_MNEM_vshrnb:
16000 case M_MNEM_vrshrnt:
16001 case M_MNEM_vrshrnb:
16002 types = N_I16 | N_I32;
16004 case M_MNEM_vqshrnt:
16005 case M_MNEM_vqshrnb:
16006 case M_MNEM_vqrshrnt:
16007 case M_MNEM_vqrshrnb:
16008 types = N_U16 | N_U32 | N_S16 | N_S32;
16010 case M_MNEM_vqshrunt:
16011 case M_MNEM_vqshrunb:
16012 case M_MNEM_vqrshrunt:
16013 case M_MNEM_vqrshrunb:
16014 types = N_S16 | N_S32;
16020 struct neon_type_el et = neon_check_type (2, NS_QQI, N_EQK, types | N_KEY);
16022 if (inst.cond > COND_ALWAYS)
16023 inst.pred_insn_type = INSIDE_VPT_INSN;
16025 inst.pred_insn_type = MVE_OUTSIDE_PRED_INSN;
16027 unsigned Qd = inst.operands[0].reg;
16028 unsigned Qm = inst.operands[1].reg;
16029 unsigned imm = inst.operands[2].imm;
16030 constraint (imm < 1 || ((unsigned) imm) > (et.size / 2),
16032 ? _("immediate operand expected in the range [1,8]")
16033 : _("immediate operand expected in the range [1,16]"));
16035 inst.instruction |= (et.type == NT_unsigned) << 28;
16036 inst.instruction |= HI1 (Qd) << 22;
16037 inst.instruction |= (et.size - imm) << 16;
16038 inst.instruction |= LOW4 (Qd) << 12;
16039 inst.instruction |= HI1 (Qm) << 5;
16040 inst.instruction |= LOW4 (Qm);
16045 do_mve_vqmovn (void)
16047 struct neon_type_el et;
16048 if (inst.instruction == M_MNEM_vqmovnt
16049 || inst.instruction == M_MNEM_vqmovnb)
16050 et = neon_check_type (2, NS_QQ, N_EQK,
16051 N_U16 | N_U32 | N_S16 | N_S32 | N_KEY);
16053 et = neon_check_type (2, NS_QQ, N_EQK, N_S16 | N_S32 | N_KEY);
16055 if (inst.cond > COND_ALWAYS)
16056 inst.pred_insn_type = INSIDE_VPT_INSN;
16058 inst.pred_insn_type = MVE_OUTSIDE_PRED_INSN;
16060 inst.instruction |= (et.type == NT_unsigned) << 28;
16061 inst.instruction |= HI1 (inst.operands[0].reg) << 22;
16062 inst.instruction |= (et.size == 32) << 18;
16063 inst.instruction |= LOW4 (inst.operands[0].reg) << 12;
16064 inst.instruction |= HI1 (inst.operands[1].reg) << 5;
16065 inst.instruction |= LOW4 (inst.operands[1].reg);
16070 do_mve_vpsel (void)
16072 neon_select_shape (NS_QQQ, NS_NULL);
16074 if (inst.cond > COND_ALWAYS)
16075 inst.pred_insn_type = INSIDE_VPT_INSN;
16077 inst.pred_insn_type = MVE_OUTSIDE_PRED_INSN;
16079 inst.instruction |= HI1 (inst.operands[0].reg) << 22;
16080 inst.instruction |= LOW4 (inst.operands[1].reg) << 16;
16081 inst.instruction |= LOW4 (inst.operands[0].reg) << 12;
16082 inst.instruction |= HI1 (inst.operands[1].reg) << 7;
16083 inst.instruction |= HI1 (inst.operands[2].reg) << 5;
16084 inst.instruction |= LOW4 (inst.operands[2].reg);
16089 do_mve_vpnot (void)
16091 if (inst.cond > COND_ALWAYS)
16092 inst.pred_insn_type = INSIDE_VPT_INSN;
16094 inst.pred_insn_type = MVE_OUTSIDE_PRED_INSN;
16098 do_mve_vmaxnma_vminnma (void)
16100 enum neon_shape rs = neon_select_shape (NS_QQ, NS_NULL);
16101 struct neon_type_el et
16102 = neon_check_type (2, rs, N_EQK, N_F_MVE | N_KEY);
16104 if (inst.cond > COND_ALWAYS)
16105 inst.pred_insn_type = INSIDE_VPT_INSN;
16107 inst.pred_insn_type = MVE_OUTSIDE_PRED_INSN;
16109 inst.instruction |= (et.size == 16) << 28;
16110 inst.instruction |= HI1 (inst.operands[0].reg) << 22;
16111 inst.instruction |= LOW4 (inst.operands[0].reg) << 12;
16112 inst.instruction |= HI1 (inst.operands[1].reg) << 5;
16113 inst.instruction |= LOW4 (inst.operands[1].reg);
16118 do_mve_vcmul (void)
16120 enum neon_shape rs = neon_select_shape (NS_QQQI, NS_NULL);
16121 struct neon_type_el et
16122 = neon_check_type (3, rs, N_EQK, N_EQK, N_F_MVE | N_KEY);
16124 if (inst.cond > COND_ALWAYS)
16125 inst.pred_insn_type = INSIDE_VPT_INSN;
16127 inst.pred_insn_type = MVE_OUTSIDE_PRED_INSN;
16129 unsigned rot = inst.relocs[0].exp.X_add_number;
16130 constraint (rot != 0 && rot != 90 && rot != 180 && rot != 270,
16131 _("immediate out of range"));
16133 if (et.size == 32 && (inst.operands[0].reg == inst.operands[1].reg
16134 || inst.operands[0].reg == inst.operands[2].reg))
16135 as_tsktsk (BAD_MVE_SRCDEST);
16137 inst.instruction |= (et.size == 32) << 28;
16138 inst.instruction |= HI1 (inst.operands[0].reg) << 22;
16139 inst.instruction |= LOW4 (inst.operands[1].reg) << 16;
16140 inst.instruction |= LOW4 (inst.operands[0].reg) << 12;
16141 inst.instruction |= (rot > 90) << 12;
16142 inst.instruction |= HI1 (inst.operands[1].reg) << 7;
16143 inst.instruction |= HI1 (inst.operands[2].reg) << 5;
16144 inst.instruction |= LOW4 (inst.operands[2].reg);
16145 inst.instruction |= (rot == 90 || rot == 270);
16149 /* To handle the Low Overhead Loop instructions
16150 in Armv8.1-M Mainline and MVE. */
16154 unsigned long insn = inst.instruction;
16156 inst.instruction = THUMB_OP32 (inst.instruction);
16158 if (insn == T_MNEM_lctp)
16161 set_pred_insn_type (MVE_OUTSIDE_PRED_INSN);
16163 if (insn == T_MNEM_wlstp || insn == T_MNEM_dlstp)
16165 struct neon_type_el et
16166 = neon_check_type (2, NS_RR, N_EQK, N_8 | N_16 | N_32 | N_64 | N_KEY);
16167 inst.instruction |= neon_logbits (et.size) << 20;
16174 constraint (!inst.operands[0].present,
16176 /* fall through. */
16179 if (!inst.operands[0].present)
16180 inst.instruction |= 1 << 21;
16182 v8_1_loop_reloc (TRUE);
16187 v8_1_loop_reloc (FALSE);
16188 /* fall through. */
16191 constraint (inst.operands[1].isreg != 1, BAD_ARGS);
16193 if (insn == T_MNEM_wlstp || insn == T_MNEM_dlstp)
16194 constraint (inst.operands[1].reg == REG_PC, BAD_PC);
16195 else if (inst.operands[1].reg == REG_PC)
16196 as_tsktsk (MVE_BAD_PC);
16197 if (inst.operands[1].reg == REG_SP)
16198 as_tsktsk (MVE_BAD_SP);
16200 inst.instruction |= (inst.operands[1].reg << 16);
16210 do_vfp_nsyn_cmp (void)
16212 enum neon_shape rs;
16213 if (!inst.operands[0].isreg)
16220 constraint (inst.operands[2].present, BAD_SYNTAX);
16221 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, fpu_vfp_ext_v1xd),
16225 if (inst.operands[1].isreg)
16227 rs = neon_select_shape (NS_HH, NS_FF, NS_DD, NS_NULL);
16228 neon_check_type (2, rs, N_EQK | N_VFP, N_F_ALL | N_KEY | N_VFP);
16230 if (rs == NS_FF || rs == NS_HH)
16232 NEON_ENCODE (SINGLE, inst);
16233 do_vfp_sp_monadic ();
16237 NEON_ENCODE (DOUBLE, inst);
16238 do_vfp_dp_rd_rm ();
16243 rs = neon_select_shape (NS_HI, NS_FI, NS_DI, NS_NULL);
16244 neon_check_type (2, rs, N_F_ALL | N_KEY | N_VFP, N_EQK);
16246 switch (inst.instruction & 0x0fffffff)
16249 inst.instruction += N_MNEM_vcmpz - N_MNEM_vcmp;
16252 inst.instruction += N_MNEM_vcmpez - N_MNEM_vcmpe;
16258 if (rs == NS_FI || rs == NS_HI)
16260 NEON_ENCODE (SINGLE, inst);
16261 do_vfp_sp_compare_z ();
16265 NEON_ENCODE (DOUBLE, inst);
16269 do_vfp_cond_or_thumb ();
16271 /* ARMv8.2 fp16 instruction. */
16272 if (rs == NS_HI || rs == NS_HH)
16273 do_scalar_fp16_v82_encode ();
16277 nsyn_insert_sp (void)
16279 inst.operands[1] = inst.operands[0];
16280 memset (&inst.operands[0], '\0', sizeof (inst.operands[0]));
16281 inst.operands[0].reg = REG_SP;
16282 inst.operands[0].isreg = 1;
16283 inst.operands[0].writeback = 1;
16284 inst.operands[0].present = 1;
16288 do_vfp_nsyn_push (void)
16292 constraint (inst.operands[1].imm < 1 || inst.operands[1].imm > 16,
16293 _("register list must contain at least 1 and at most 16 "
16296 if (inst.operands[1].issingle)
16297 do_vfp_nsyn_opcode ("fstmdbs");
16299 do_vfp_nsyn_opcode ("fstmdbd");
16303 do_vfp_nsyn_pop (void)
16307 constraint (inst.operands[1].imm < 1 || inst.operands[1].imm > 16,
16308 _("register list must contain at least 1 and at most 16 "
16311 if (inst.operands[1].issingle)
16312 do_vfp_nsyn_opcode ("fldmias");
16314 do_vfp_nsyn_opcode ("fldmiad");
16317 /* Fix up Neon data-processing instructions, ORing in the correct bits for
16318 ARM mode or Thumb mode and moving the encoded bit 24 to bit 28. */
16321 neon_dp_fixup (struct arm_it* insn)
16323 unsigned int i = insn->instruction;
16328 /* The U bit is at bit 24 by default. Move to bit 28 in Thumb mode. */
16339 insn->instruction = i;
16343 mve_encode_qqr (int size, int U, int fp)
16345 if (inst.operands[2].reg == REG_SP)
16346 as_tsktsk (MVE_BAD_SP);
16347 else if (inst.operands[2].reg == REG_PC)
16348 as_tsktsk (MVE_BAD_PC);
16353 if (((unsigned)inst.instruction) == 0xd00)
16354 inst.instruction = 0xee300f40;
16356 else if (((unsigned)inst.instruction) == 0x200d00)
16357 inst.instruction = 0xee301f40;
16359 else if (((unsigned)inst.instruction) == 0x1000d10)
16360 inst.instruction = 0xee310e60;
16362 /* Setting size which is 1 for F16 and 0 for F32. */
16363 inst.instruction |= (size == 16) << 28;
16368 if (((unsigned)inst.instruction) == 0x800)
16369 inst.instruction = 0xee010f40;
16371 else if (((unsigned)inst.instruction) == 0x1000800)
16372 inst.instruction = 0xee011f40;
16374 else if (((unsigned)inst.instruction) == 0)
16375 inst.instruction = 0xee000f40;
16377 else if (((unsigned)inst.instruction) == 0x200)
16378 inst.instruction = 0xee001f40;
16380 else if (((unsigned)inst.instruction) == 0x900)
16381 inst.instruction = 0xee010e40;
16383 else if (((unsigned)inst.instruction) == 0x910)
16384 inst.instruction = 0xee011e60;
16386 else if (((unsigned)inst.instruction) == 0x10)
16387 inst.instruction = 0xee000f60;
16389 else if (((unsigned)inst.instruction) == 0x210)
16390 inst.instruction = 0xee001f60;
16392 else if (((unsigned)inst.instruction) == 0x3000b10)
16393 inst.instruction = 0xee000e40;
16395 else if (((unsigned)inst.instruction) == 0x0000b00)
16396 inst.instruction = 0xee010e60;
16398 else if (((unsigned)inst.instruction) == 0x1000b00)
16399 inst.instruction = 0xfe010e60;
16402 inst.instruction |= U << 28;
16404 /* Setting bits for size. */
16405 inst.instruction |= neon_logbits (size) << 20;
16407 inst.instruction |= LOW4 (inst.operands[0].reg) << 12;
16408 inst.instruction |= HI1 (inst.operands[0].reg) << 22;
16409 inst.instruction |= LOW4 (inst.operands[1].reg) << 16;
16410 inst.instruction |= HI1 (inst.operands[1].reg) << 7;
16411 inst.instruction |= inst.operands[2].reg;
16416 mve_encode_rqq (unsigned bit28, unsigned size)
16418 inst.instruction |= bit28 << 28;
16419 inst.instruction |= neon_logbits (size) << 20;
16420 inst.instruction |= LOW4 (inst.operands[1].reg) << 16;
16421 inst.instruction |= inst.operands[0].reg << 12;
16422 inst.instruction |= HI1 (inst.operands[1].reg) << 7;
16423 inst.instruction |= HI1 (inst.operands[2].reg) << 5;
16424 inst.instruction |= LOW4 (inst.operands[2].reg);
16429 mve_encode_qqq (int ubit, int size)
16432 inst.instruction |= (ubit != 0) << 28;
16433 inst.instruction |= HI1 (inst.operands[0].reg) << 22;
16434 inst.instruction |= neon_logbits (size) << 20;
16435 inst.instruction |= LOW4 (inst.operands[1].reg) << 16;
16436 inst.instruction |= LOW4 (inst.operands[0].reg) << 12;
16437 inst.instruction |= HI1 (inst.operands[1].reg) << 7;
16438 inst.instruction |= HI1 (inst.operands[2].reg) << 5;
16439 inst.instruction |= LOW4 (inst.operands[2].reg);
16445 mve_encode_rq (unsigned bit28, unsigned size)
16447 inst.instruction |= bit28 << 28;
16448 inst.instruction |= neon_logbits (size) << 18;
16449 inst.instruction |= inst.operands[0].reg << 12;
16450 inst.instruction |= LOW4 (inst.operands[1].reg);
16455 mve_encode_rrqq (unsigned U, unsigned size)
16457 constraint (inst.operands[3].reg > 14, MVE_BAD_QREG);
16459 inst.instruction |= U << 28;
16460 inst.instruction |= (inst.operands[1].reg >> 1) << 20;
16461 inst.instruction |= LOW4 (inst.operands[2].reg) << 16;
16462 inst.instruction |= (size == 32) << 16;
16463 inst.instruction |= inst.operands[0].reg << 12;
16464 inst.instruction |= HI1 (inst.operands[2].reg) << 7;
16465 inst.instruction |= inst.operands[3].reg;
16469 /* Encode insns with bit pattern:
16471 |28/24|23|22 |21 20|19 16|15 12|11 8|7|6|5|4|3 0|
16472 | U |x |D |size | Rn | Rd |x x x x|N|Q|M|x| Rm |
16474 SIZE is passed in bits. -1 means size field isn't changed, in case it has a
16475 different meaning for some instruction. */
16478 neon_three_same (int isquad, int ubit, int size)
16480 inst.instruction |= LOW4 (inst.operands[0].reg) << 12;
16481 inst.instruction |= HI1 (inst.operands[0].reg) << 22;
16482 inst.instruction |= LOW4 (inst.operands[1].reg) << 16;
16483 inst.instruction |= HI1 (inst.operands[1].reg) << 7;
16484 inst.instruction |= LOW4 (inst.operands[2].reg);
16485 inst.instruction |= HI1 (inst.operands[2].reg) << 5;
16486 inst.instruction |= (isquad != 0) << 6;
16487 inst.instruction |= (ubit != 0) << 24;
16489 inst.instruction |= neon_logbits (size) << 20;
16491 neon_dp_fixup (&inst);
16494 /* Encode instructions of the form:
16496 |28/24|23|22|21 20|19 18|17 16|15 12|11 7|6|5|4|3 0|
16497 | U |x |D |x x |size |x x | Rd |x x x x x|Q|M|x| Rm |
16499 Don't write size if SIZE == -1. */
16502 neon_two_same (int qbit, int ubit, int size)
16504 inst.instruction |= LOW4 (inst.operands[0].reg) << 12;
16505 inst.instruction |= HI1 (inst.operands[0].reg) << 22;
16506 inst.instruction |= LOW4 (inst.operands[1].reg);
16507 inst.instruction |= HI1 (inst.operands[1].reg) << 5;
16508 inst.instruction |= (qbit != 0) << 6;
16509 inst.instruction |= (ubit != 0) << 24;
16512 inst.instruction |= neon_logbits (size) << 18;
16514 neon_dp_fixup (&inst);
16517 enum vfp_or_neon_is_neon_bits
16520 NEON_CHECK_ARCH = 2,
16521 NEON_CHECK_ARCH8 = 4
16524 /* Call this function if an instruction which may have belonged to the VFP or
16525 Neon instruction sets, but turned out to be a Neon instruction (due to the
16526 operand types involved, etc.). We have to check and/or fix-up a couple of
16529 - Make sure the user hasn't attempted to make a Neon instruction
16531 - Alter the value in the condition code field if necessary.
16532 - Make sure that the arch supports Neon instructions.
16534 Which of these operations take place depends on bits from enum
16535 vfp_or_neon_is_neon_bits.
16537 WARNING: This function has side effects! If NEON_CHECK_CC is used and the
16538 current instruction's condition is COND_ALWAYS, the condition field is
16539 changed to inst.uncond_value. This is necessary because instructions shared
16540 between VFP and Neon may be conditional for the VFP variants only, and the
16541 unconditional Neon version must have, e.g., 0xF in the condition field. */
16544 vfp_or_neon_is_neon (unsigned check)
16546 /* Conditions are always legal in Thumb mode (IT blocks). */
16547 if (!thumb_mode && (check & NEON_CHECK_CC))
16549 if (inst.cond != COND_ALWAYS)
16551 first_error (_(BAD_COND));
16554 if (inst.uncond_value != -1)
16555 inst.instruction |= inst.uncond_value << 28;
16559 if (((check & NEON_CHECK_ARCH) && !mark_feature_used (&fpu_neon_ext_v1))
16560 || ((check & NEON_CHECK_ARCH8)
16561 && !mark_feature_used (&fpu_neon_ext_armv8)))
16563 first_error (_(BAD_FPU));
16571 /* Return TRUE if the SIMD instruction is available for the current
16572 cpu_variant. FP is set to TRUE if this is a SIMD floating-point
16573 instruction. CHECK contains th. CHECK contains the set of bits to pass to
16574 vfp_or_neon_is_neon for the NEON specific checks. */
16577 check_simd_pred_availability (int fp, unsigned check)
16579 if (inst.cond > COND_ALWAYS)
16581 if (!ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext))
16583 inst.error = BAD_FPU;
16586 inst.pred_insn_type = INSIDE_VPT_INSN;
16588 else if (inst.cond < COND_ALWAYS)
16590 if (ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext))
16591 inst.pred_insn_type = MVE_OUTSIDE_PRED_INSN;
16592 else if (vfp_or_neon_is_neon (check) == FAIL)
16597 if (!ARM_CPU_HAS_FEATURE (cpu_variant, fp ? mve_fp_ext : mve_ext)
16598 && vfp_or_neon_is_neon (check) == FAIL)
16601 if (ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext))
16602 inst.pred_insn_type = MVE_OUTSIDE_PRED_INSN;
16607 /* Neon instruction encoders, in approximate order of appearance. */
16610 do_neon_dyadic_i_su (void)
16612 if (!check_simd_pred_availability (FALSE, NEON_CHECK_ARCH | NEON_CHECK_CC))
16615 enum neon_shape rs;
16616 struct neon_type_el et;
16617 if (ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext))
16618 rs = neon_select_shape (NS_QQQ, NS_QQR, NS_NULL);
16620 rs = neon_select_shape (NS_DDD, NS_QQQ, NS_NULL);
16622 et = neon_check_type (3, rs, N_EQK, N_EQK, N_SU_32 | N_KEY);
16626 neon_three_same (neon_quad (rs), et.type == NT_unsigned, et.size);
16628 mve_encode_qqr (et.size, et.type == NT_unsigned, 0);
16632 do_neon_dyadic_i64_su (void)
16634 if (!check_simd_pred_availability (FALSE, NEON_CHECK_CC | NEON_CHECK_ARCH))
16636 enum neon_shape rs;
16637 struct neon_type_el et;
16638 if (ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext))
16640 rs = neon_select_shape (NS_QQR, NS_QQQ, NS_NULL);
16641 et = neon_check_type (3, rs, N_EQK, N_EQK, N_SU_MVE | N_KEY);
16645 rs = neon_select_shape (NS_DDD, NS_QQQ, NS_NULL);
16646 et = neon_check_type (3, rs, N_EQK, N_EQK, N_SU_ALL | N_KEY);
16649 mve_encode_qqr (et.size, et.type == NT_unsigned, 0);
16651 neon_three_same (neon_quad (rs), et.type == NT_unsigned, et.size);
16655 neon_imm_shift (int write_ubit, int uval, int isquad, struct neon_type_el et,
16658 unsigned size = et.size >> 3;
16659 inst.instruction |= LOW4 (inst.operands[0].reg) << 12;
16660 inst.instruction |= HI1 (inst.operands[0].reg) << 22;
16661 inst.instruction |= LOW4 (inst.operands[1].reg);
16662 inst.instruction |= HI1 (inst.operands[1].reg) << 5;
16663 inst.instruction |= (isquad != 0) << 6;
16664 inst.instruction |= immbits << 16;
16665 inst.instruction |= (size >> 3) << 7;
16666 inst.instruction |= (size & 0x7) << 19;
16668 inst.instruction |= (uval != 0) << 24;
16670 neon_dp_fixup (&inst);
16676 if (!check_simd_pred_availability (FALSE, NEON_CHECK_ARCH | NEON_CHECK_CC))
16679 if (!inst.operands[2].isreg)
16681 enum neon_shape rs;
16682 struct neon_type_el et;
16683 if (ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext))
16685 rs = neon_select_shape (NS_QQI, NS_NULL);
16686 et = neon_check_type (2, rs, N_EQK, N_KEY | N_I_MVE);
16690 rs = neon_select_shape (NS_DDI, NS_QQI, NS_NULL);
16691 et = neon_check_type (2, rs, N_EQK, N_KEY | N_I_ALL);
16693 int imm = inst.operands[2].imm;
16695 constraint (imm < 0 || (unsigned)imm >= et.size,
16696 _("immediate out of range for shift"));
16697 NEON_ENCODE (IMMED, inst);
16698 neon_imm_shift (FALSE, 0, neon_quad (rs), et, imm);
16702 enum neon_shape rs;
16703 struct neon_type_el et;
16704 if (ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext))
16706 rs = neon_select_shape (NS_QQQ, NS_QQR, NS_NULL);
16707 et = neon_check_type (3, rs, N_EQK, N_SU_MVE | N_KEY, N_EQK | N_EQK);
16711 rs = neon_select_shape (NS_DDD, NS_QQQ, NS_NULL);
16712 et = neon_check_type (3, rs, N_EQK, N_SU_ALL | N_KEY, N_EQK | N_SGN);
16718 constraint (inst.operands[0].reg != inst.operands[1].reg,
16719 _("invalid instruction shape"));
16720 if (inst.operands[2].reg == REG_SP)
16721 as_tsktsk (MVE_BAD_SP);
16722 else if (inst.operands[2].reg == REG_PC)
16723 as_tsktsk (MVE_BAD_PC);
16725 inst.instruction = 0xee311e60;
16726 inst.instruction |= (et.type == NT_unsigned) << 28;
16727 inst.instruction |= HI1 (inst.operands[0].reg) << 22;
16728 inst.instruction |= neon_logbits (et.size) << 18;
16729 inst.instruction |= LOW4 (inst.operands[0].reg) << 12;
16730 inst.instruction |= inst.operands[2].reg;
16737 /* VSHL/VQSHL 3-register variants have syntax such as:
16739 whereas other 3-register operations encoded by neon_three_same have
16742 (i.e. with Dn & Dm reversed). Swap operands[1].reg and
16743 operands[2].reg here. */
16744 tmp = inst.operands[2].reg;
16745 inst.operands[2].reg = inst.operands[1].reg;
16746 inst.operands[1].reg = tmp;
16747 NEON_ENCODE (INTEGER, inst);
16748 neon_three_same (neon_quad (rs), et.type == NT_unsigned, et.size);
16754 do_neon_qshl (void)
16756 if (!check_simd_pred_availability (FALSE, NEON_CHECK_ARCH | NEON_CHECK_CC))
16759 if (!inst.operands[2].isreg)
16761 enum neon_shape rs;
16762 struct neon_type_el et;
16763 if (ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext))
16765 rs = neon_select_shape (NS_QQI, NS_NULL);
16766 et = neon_check_type (2, rs, N_EQK, N_KEY | N_SU_MVE);
16770 rs = neon_select_shape (NS_DDI, NS_QQI, NS_NULL);
16771 et = neon_check_type (2, rs, N_EQK, N_SU_ALL | N_KEY);
16773 int imm = inst.operands[2].imm;
16775 constraint (imm < 0 || (unsigned)imm >= et.size,
16776 _("immediate out of range for shift"));
16777 NEON_ENCODE (IMMED, inst);
16778 neon_imm_shift (TRUE, et.type == NT_unsigned, neon_quad (rs), et, imm);
16782 enum neon_shape rs;
16783 struct neon_type_el et;
16785 if (ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext))
16787 rs = neon_select_shape (NS_QQQ, NS_QQR, NS_NULL);
16788 et = neon_check_type (3, rs, N_EQK, N_SU_MVE | N_KEY, N_EQK | N_EQK);
16792 rs = neon_select_shape (NS_DDD, NS_QQQ, NS_NULL);
16793 et = neon_check_type (3, rs, N_EQK, N_SU_ALL | N_KEY, N_EQK | N_SGN);
16798 constraint (inst.operands[0].reg != inst.operands[1].reg,
16799 _("invalid instruction shape"));
16800 if (inst.operands[2].reg == REG_SP)
16801 as_tsktsk (MVE_BAD_SP);
16802 else if (inst.operands[2].reg == REG_PC)
16803 as_tsktsk (MVE_BAD_PC);
16805 inst.instruction = 0xee311ee0;
16806 inst.instruction |= (et.type == NT_unsigned) << 28;
16807 inst.instruction |= HI1 (inst.operands[0].reg) << 22;
16808 inst.instruction |= neon_logbits (et.size) << 18;
16809 inst.instruction |= LOW4 (inst.operands[0].reg) << 12;
16810 inst.instruction |= inst.operands[2].reg;
16817 /* See note in do_neon_shl. */
16818 tmp = inst.operands[2].reg;
16819 inst.operands[2].reg = inst.operands[1].reg;
16820 inst.operands[1].reg = tmp;
16821 NEON_ENCODE (INTEGER, inst);
16822 neon_three_same (neon_quad (rs), et.type == NT_unsigned, et.size);
16828 do_neon_rshl (void)
16830 if (!check_simd_pred_availability (FALSE, NEON_CHECK_ARCH | NEON_CHECK_CC))
16833 enum neon_shape rs;
16834 struct neon_type_el et;
16835 if (ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext))
16837 rs = neon_select_shape (NS_QQR, NS_QQQ, NS_NULL);
16838 et = neon_check_type (3, rs, N_EQK, N_EQK, N_SU_MVE | N_KEY);
16842 rs = neon_select_shape (NS_DDD, NS_QQQ, NS_NULL);
16843 et = neon_check_type (3, rs, N_EQK, N_EQK, N_SU_ALL | N_KEY);
16850 if (inst.operands[2].reg == REG_PC)
16851 as_tsktsk (MVE_BAD_PC);
16852 else if (inst.operands[2].reg == REG_SP)
16853 as_tsktsk (MVE_BAD_SP);
16855 constraint (inst.operands[0].reg != inst.operands[1].reg,
16856 _("invalid instruction shape"));
16858 if (inst.instruction == 0x0000510)
16859 /* We are dealing with vqrshl. */
16860 inst.instruction = 0xee331ee0;
16862 /* We are dealing with vrshl. */
16863 inst.instruction = 0xee331e60;
16865 inst.instruction |= (et.type == NT_unsigned) << 28;
16866 inst.instruction |= HI1 (inst.operands[0].reg) << 22;
16867 inst.instruction |= neon_logbits (et.size) << 18;
16868 inst.instruction |= LOW4 (inst.operands[0].reg) << 12;
16869 inst.instruction |= inst.operands[2].reg;
16874 tmp = inst.operands[2].reg;
16875 inst.operands[2].reg = inst.operands[1].reg;
16876 inst.operands[1].reg = tmp;
16877 neon_three_same (neon_quad (rs), et.type == NT_unsigned, et.size);
16882 neon_cmode_for_logic_imm (unsigned immediate, unsigned *immbits, int size)
16884 /* Handle .I8 pseudo-instructions. */
16887 /* Unfortunately, this will make everything apart from zero out-of-range.
16888 FIXME is this the intended semantics? There doesn't seem much point in
16889 accepting .I8 if so. */
16890 immediate |= immediate << 8;
16896 if (immediate == (immediate & 0x000000ff))
16898 *immbits = immediate;
16901 else if (immediate == (immediate & 0x0000ff00))
16903 *immbits = immediate >> 8;
16906 else if (immediate == (immediate & 0x00ff0000))
16908 *immbits = immediate >> 16;
16911 else if (immediate == (immediate & 0xff000000))
16913 *immbits = immediate >> 24;
16916 if ((immediate & 0xffff) != (immediate >> 16))
16917 goto bad_immediate;
16918 immediate &= 0xffff;
16921 if (immediate == (immediate & 0x000000ff))
16923 *immbits = immediate;
16926 else if (immediate == (immediate & 0x0000ff00))
16928 *immbits = immediate >> 8;
16933 first_error (_("immediate value out of range"));
16938 do_neon_logic (void)
16940 if (inst.operands[2].present && inst.operands[2].isreg)
16942 enum neon_shape rs = neon_select_shape (NS_DDD, NS_QQQ, NS_NULL);
16944 && !check_simd_pred_availability (FALSE,
16945 NEON_CHECK_ARCH | NEON_CHECK_CC))
16947 else if (rs != NS_QQQ
16948 && !ARM_CPU_HAS_FEATURE (cpu_variant, fpu_neon_ext_v1))
16949 first_error (BAD_FPU);
16951 neon_check_type (3, rs, N_IGNORE_TYPE);
16952 /* U bit and size field were set as part of the bitmask. */
16953 NEON_ENCODE (INTEGER, inst);
16954 neon_three_same (neon_quad (rs), 0, -1);
16958 const int three_ops_form = (inst.operands[2].present
16959 && !inst.operands[2].isreg);
16960 const int immoperand = (three_ops_form ? 2 : 1);
16961 enum neon_shape rs = (three_ops_form
16962 ? neon_select_shape (NS_DDI, NS_QQI, NS_NULL)
16963 : neon_select_shape (NS_DI, NS_QI, NS_NULL));
16964 /* Because neon_select_shape makes the second operand a copy of the first
16965 if the second operand is not present. */
16967 && !check_simd_pred_availability (FALSE,
16968 NEON_CHECK_ARCH | NEON_CHECK_CC))
16970 else if (rs != NS_QQI
16971 && !ARM_CPU_HAS_FEATURE (cpu_variant, fpu_neon_ext_v1))
16972 first_error (BAD_FPU);
16974 struct neon_type_el et;
16975 if (ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext))
16976 et = neon_check_type (2, rs, N_I32 | N_I16 | N_KEY, N_EQK);
16978 et = neon_check_type (2, rs, N_I8 | N_I16 | N_I32 | N_I64 | N_F32
16981 if (et.type == NT_invtype)
16983 enum neon_opc opcode = (enum neon_opc) inst.instruction & 0x0fffffff;
16988 if (three_ops_form)
16989 constraint (inst.operands[0].reg != inst.operands[1].reg,
16990 _("first and second operands shall be the same register"));
16992 NEON_ENCODE (IMMED, inst);
16994 immbits = inst.operands[immoperand].imm;
16997 /* .i64 is a pseudo-op, so the immediate must be a repeating
16999 if (immbits != (inst.operands[immoperand].regisimm ?
17000 inst.operands[immoperand].reg : 0))
17002 /* Set immbits to an invalid constant. */
17003 immbits = 0xdeadbeef;
17010 cmode = neon_cmode_for_logic_imm (immbits, &immbits, et.size);
17014 cmode = neon_cmode_for_logic_imm (immbits, &immbits, et.size);
17018 /* Pseudo-instruction for VBIC. */
17019 neon_invert_size (&immbits, 0, et.size);
17020 cmode = neon_cmode_for_logic_imm (immbits, &immbits, et.size);
17024 /* Pseudo-instruction for VORR. */
17025 neon_invert_size (&immbits, 0, et.size);
17026 cmode = neon_cmode_for_logic_imm (immbits, &immbits, et.size);
17036 inst.instruction |= neon_quad (rs) << 6;
17037 inst.instruction |= LOW4 (inst.operands[0].reg) << 12;
17038 inst.instruction |= HI1 (inst.operands[0].reg) << 22;
17039 inst.instruction |= cmode << 8;
17040 neon_write_immbits (immbits);
17042 neon_dp_fixup (&inst);
17047 do_neon_bitfield (void)
17049 enum neon_shape rs = neon_select_shape (NS_DDD, NS_QQQ, NS_NULL);
17050 neon_check_type (3, rs, N_IGNORE_TYPE);
17051 neon_three_same (neon_quad (rs), 0, -1);
17055 neon_dyadic_misc (enum neon_el_type ubit_meaning, unsigned types,
17058 enum neon_shape rs = neon_select_shape (NS_DDD, NS_QQQ, NS_QQR, NS_NULL);
17059 struct neon_type_el et = neon_check_type (3, rs, N_EQK | destbits, N_EQK,
17061 if (et.type == NT_float)
17063 NEON_ENCODE (FLOAT, inst);
17065 mve_encode_qqr (et.size, 0, 1);
17067 neon_three_same (neon_quad (rs), 0, et.size == 16 ? (int) et.size : -1);
17071 NEON_ENCODE (INTEGER, inst);
17073 mve_encode_qqr (et.size, et.type == ubit_meaning, 0);
17075 neon_three_same (neon_quad (rs), et.type == ubit_meaning, et.size);
17081 do_neon_dyadic_if_su_d (void)
17083 /* This version only allow D registers, but that constraint is enforced during
17084 operand parsing so we don't need to do anything extra here. */
17085 neon_dyadic_misc (NT_unsigned, N_SUF_32, 0);
17089 do_neon_dyadic_if_i_d (void)
17091 /* The "untyped" case can't happen. Do this to stop the "U" bit being
17092 affected if we specify unsigned args. */
17093 neon_dyadic_misc (NT_untyped, N_IF_32, 0);
17097 do_mve_vstr_vldr_QI (int size, int elsize, int load)
17099 constraint (size < 32, BAD_ADDR_MODE);
17100 constraint (size != elsize, BAD_EL_TYPE);
17101 constraint (inst.operands[1].immisreg, BAD_ADDR_MODE);
17102 constraint (!inst.operands[1].preind, BAD_ADDR_MODE);
17103 constraint (load && inst.operands[0].reg == inst.operands[1].reg,
17104 _("destination register and offset register may not be the"
17107 int imm = inst.relocs[0].exp.X_add_number;
17114 constraint ((imm % (size / 8) != 0)
17115 || imm > (0x7f << neon_logbits (size)),
17116 (size == 32) ? _("immediate must be a multiple of 4 in the"
17117 " range of +/-[0,508]")
17118 : _("immediate must be a multiple of 8 in the"
17119 " range of +/-[0,1016]"));
17120 inst.instruction |= 0x11 << 24;
17121 inst.instruction |= add << 23;
17122 inst.instruction |= HI1 (inst.operands[0].reg) << 22;
17123 inst.instruction |= inst.operands[1].writeback << 21;
17124 inst.instruction |= LOW4 (inst.operands[1].reg) << 16;
17125 inst.instruction |= LOW4 (inst.operands[0].reg) << 12;
17126 inst.instruction |= 1 << 12;
17127 inst.instruction |= (size == 64) << 8;
17128 inst.instruction &= 0xffffff00;
17129 inst.instruction |= HI1 (inst.operands[1].reg) << 7;
17130 inst.instruction |= imm >> neon_logbits (size);
17134 do_mve_vstr_vldr_RQ (int size, int elsize, int load)
17136 unsigned os = inst.operands[1].imm >> 5;
17137 constraint (os != 0 && size == 8,
17138 _("can not shift offsets when accessing less than half-word"));
17139 constraint (os && os != neon_logbits (size),
17140 _("shift immediate must be 1, 2 or 3 for half-word, word"
17141 " or double-word accesses respectively"));
17142 if (inst.operands[1].reg == REG_PC)
17143 as_tsktsk (MVE_BAD_PC);
17148 constraint (elsize >= 64, BAD_EL_TYPE);
17151 constraint (elsize < 16 || elsize >= 64, BAD_EL_TYPE);
17155 constraint (elsize != size, BAD_EL_TYPE);
17160 constraint (inst.operands[1].writeback || !inst.operands[1].preind,
17164 constraint (inst.operands[0].reg == (inst.operands[1].imm & 0x1f),
17165 _("destination register and offset register may not be"
17167 constraint (size == elsize && inst.vectype.el[0].type != NT_unsigned,
17169 constraint (inst.vectype.el[0].type != NT_unsigned
17170 && inst.vectype.el[0].type != NT_signed, BAD_EL_TYPE);
17171 inst.instruction |= (inst.vectype.el[0].type == NT_unsigned) << 28;
17175 constraint (inst.vectype.el[0].type != NT_untyped, BAD_EL_TYPE);
17178 inst.instruction |= 1 << 23;
17179 inst.instruction |= HI1 (inst.operands[0].reg) << 22;
17180 inst.instruction |= inst.operands[1].reg << 16;
17181 inst.instruction |= LOW4 (inst.operands[0].reg) << 12;
17182 inst.instruction |= neon_logbits (elsize) << 7;
17183 inst.instruction |= HI1 (inst.operands[1].imm) << 5;
17184 inst.instruction |= LOW4 (inst.operands[1].imm);
17185 inst.instruction |= !!os;
17189 do_mve_vstr_vldr_RI (int size, int elsize, int load)
17191 enum neon_el_type type = inst.vectype.el[0].type;
17193 constraint (size >= 64, BAD_ADDR_MODE);
17197 constraint (elsize < 16 || elsize >= 64, BAD_EL_TYPE);
17200 constraint (elsize != size, BAD_EL_TYPE);
17207 constraint (elsize != size && type != NT_unsigned
17208 && type != NT_signed, BAD_EL_TYPE);
17212 constraint (elsize != size && type != NT_untyped, BAD_EL_TYPE);
17215 int imm = inst.relocs[0].exp.X_add_number;
17223 if ((imm % (size / 8) != 0) || imm > (0x7f << neon_logbits (size)))
17228 constraint (1, _("immediate must be in the range of +/-[0,127]"));
17231 constraint (1, _("immediate must be a multiple of 2 in the"
17232 " range of +/-[0,254]"));
17235 constraint (1, _("immediate must be a multiple of 4 in the"
17236 " range of +/-[0,508]"));
17241 if (size != elsize)
17243 constraint (inst.operands[1].reg > 7, BAD_HIREG);
17244 constraint (inst.operands[0].reg > 14,
17245 _("MVE vector register in the range [Q0..Q7] expected"));
17246 inst.instruction |= (load && type == NT_unsigned) << 28;
17247 inst.instruction |= (size == 16) << 19;
17248 inst.instruction |= neon_logbits (elsize) << 7;
17252 if (inst.operands[1].reg == REG_PC)
17253 as_tsktsk (MVE_BAD_PC);
17254 else if (inst.operands[1].reg == REG_SP && inst.operands[1].writeback)
17255 as_tsktsk (MVE_BAD_SP);
17256 inst.instruction |= 1 << 12;
17257 inst.instruction |= neon_logbits (size) << 7;
17259 inst.instruction |= inst.operands[1].preind << 24;
17260 inst.instruction |= add << 23;
17261 inst.instruction |= HI1 (inst.operands[0].reg) << 22;
17262 inst.instruction |= inst.operands[1].writeback << 21;
17263 inst.instruction |= inst.operands[1].reg << 16;
17264 inst.instruction |= LOW4 (inst.operands[0].reg) << 12;
17265 inst.instruction &= 0xffffff80;
17266 inst.instruction |= imm >> neon_logbits (size);
17271 do_mve_vstr_vldr (void)
17276 if (inst.cond > COND_ALWAYS)
17277 inst.pred_insn_type = INSIDE_VPT_INSN;
17279 inst.pred_insn_type = MVE_OUTSIDE_PRED_INSN;
17281 switch (inst.instruction)
17288 /* fall through. */
17294 /* fall through. */
17300 /* fall through. */
17306 /* fall through. */
17311 unsigned elsize = inst.vectype.el[0].size;
17313 if (inst.operands[1].isquad)
17315 /* We are dealing with [Q, imm]{!} cases. */
17316 do_mve_vstr_vldr_QI (size, elsize, load);
17320 if (inst.operands[1].immisreg == 2)
17322 /* We are dealing with [R, Q, {UXTW #os}] cases. */
17323 do_mve_vstr_vldr_RQ (size, elsize, load);
17325 else if (!inst.operands[1].immisreg)
17327 /* We are dealing with [R, Imm]{!}/[R], Imm cases. */
17328 do_mve_vstr_vldr_RI (size, elsize, load);
17331 constraint (1, BAD_ADDR_MODE);
17338 do_mve_vst_vld (void)
17340 if (!ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext))
17343 constraint (!inst.operands[1].preind || inst.relocs[0].exp.X_add_symbol != 0
17344 || inst.relocs[0].exp.X_add_number != 0
17345 || inst.operands[1].immisreg != 0,
17347 constraint (inst.vectype.el[0].size > 32, BAD_EL_TYPE);
17348 if (inst.operands[1].reg == REG_PC)
17349 as_tsktsk (MVE_BAD_PC);
17350 else if (inst.operands[1].reg == REG_SP && inst.operands[1].writeback)
17351 as_tsktsk (MVE_BAD_SP);
17354 /* These instructions are one of the "exceptions" mentioned in
17355 handle_pred_state. They are MVE instructions that are not VPT compatible
17356 and do not accept a VPT code, thus appending such a code is a syntax
17358 if (inst.cond > COND_ALWAYS)
17359 first_error (BAD_SYNTAX);
17360 /* If we append a scalar condition code we can set this to
17361 MVE_OUTSIDE_PRED_INSN as it will also lead to a syntax error. */
17362 else if (inst.cond < COND_ALWAYS)
17363 inst.pred_insn_type = MVE_OUTSIDE_PRED_INSN;
17365 inst.pred_insn_type = MVE_UNPREDICABLE_INSN;
17367 inst.instruction |= HI1 (inst.operands[0].reg) << 22;
17368 inst.instruction |= inst.operands[1].writeback << 21;
17369 inst.instruction |= inst.operands[1].reg << 16;
17370 inst.instruction |= LOW4 (inst.operands[0].reg) << 12;
17371 inst.instruction |= neon_logbits (inst.vectype.el[0].size) << 7;
17376 do_mve_vaddlv (void)
17378 enum neon_shape rs = neon_select_shape (NS_RRQ, NS_NULL);
17379 struct neon_type_el et
17380 = neon_check_type (3, rs, N_EQK, N_EQK, N_S32 | N_U32 | N_KEY);
17382 if (et.type == NT_invtype)
17383 first_error (BAD_EL_TYPE);
17385 if (inst.cond > COND_ALWAYS)
17386 inst.pred_insn_type = INSIDE_VPT_INSN;
17388 inst.pred_insn_type = MVE_OUTSIDE_PRED_INSN;
17390 constraint (inst.operands[1].reg > 14, MVE_BAD_QREG);
17392 inst.instruction |= (et.type == NT_unsigned) << 28;
17393 inst.instruction |= inst.operands[1].reg << 19;
17394 inst.instruction |= inst.operands[0].reg << 12;
17395 inst.instruction |= inst.operands[2].reg;
17400 do_neon_dyadic_if_su (void)
17402 enum neon_shape rs = neon_select_shape (NS_DDD, NS_QQQ, NS_QQR, NS_NULL);
17403 struct neon_type_el et = neon_check_type (3, rs, N_EQK , N_EQK,
17406 constraint ((inst.instruction == ((unsigned) N_MNEM_vmax)
17407 || inst.instruction == ((unsigned) N_MNEM_vmin))
17408 && et.type == NT_float
17409 && !ARM_CPU_HAS_FEATURE (cpu_variant,fpu_neon_ext_v1), BAD_FPU);
17411 if (!check_simd_pred_availability (et.type == NT_float,
17412 NEON_CHECK_ARCH | NEON_CHECK_CC))
17415 neon_dyadic_misc (NT_unsigned, N_SUF_32, 0);
17419 do_neon_addsub_if_i (void)
17421 if (ARM_CPU_HAS_FEATURE (cpu_variant, fpu_vfp_ext_v1xd)
17422 && try_vfp_nsyn (3, do_vfp_nsyn_add_sub) == SUCCESS)
17425 enum neon_shape rs = neon_select_shape (NS_DDD, NS_QQQ, NS_QQR, NS_NULL);
17426 struct neon_type_el et = neon_check_type (3, rs, N_EQK,
17427 N_EQK, N_IF_32 | N_I64 | N_KEY);
17429 constraint (rs == NS_QQR && et.size == 64, BAD_FPU);
17430 /* If we are parsing Q registers and the element types match MVE, which NEON
17431 also supports, then we must check whether this is an instruction that can
17432 be used by both MVE/NEON. This distinction can be made based on whether
17433 they are predicated or not. */
17434 if ((rs == NS_QQQ || rs == NS_QQR) && et.size != 64)
17436 if (!check_simd_pred_availability (et.type == NT_float,
17437 NEON_CHECK_ARCH | NEON_CHECK_CC))
17442 /* If they are either in a D register or are using an unsupported. */
17444 && vfp_or_neon_is_neon (NEON_CHECK_CC | NEON_CHECK_ARCH) == FAIL)
17448 /* The "untyped" case can't happen. Do this to stop the "U" bit being
17449 affected if we specify unsigned args. */
17450 neon_dyadic_misc (NT_untyped, N_IF_32 | N_I64, 0);
17453 /* Swaps operands 1 and 2. If operand 1 (optional arg) was omitted, we want the
17455 V<op> A,B (A is operand 0, B is operand 2)
17460 so handle that case specially. */
17463 neon_exchange_operands (void)
17465 if (inst.operands[1].present)
17467 void *scratch = xmalloc (sizeof (inst.operands[0]));
17469 /* Swap operands[1] and operands[2]. */
17470 memcpy (scratch, &inst.operands[1], sizeof (inst.operands[0]));
17471 inst.operands[1] = inst.operands[2];
17472 memcpy (&inst.operands[2], scratch, sizeof (inst.operands[0]));
17477 inst.operands[1] = inst.operands[2];
17478 inst.operands[2] = inst.operands[0];
17483 neon_compare (unsigned regtypes, unsigned immtypes, int invert)
17485 if (inst.operands[2].isreg)
17488 neon_exchange_operands ();
17489 neon_dyadic_misc (NT_unsigned, regtypes, N_SIZ);
17493 enum neon_shape rs = neon_select_shape (NS_DDI, NS_QQI, NS_NULL);
17494 struct neon_type_el et = neon_check_type (2, rs,
17495 N_EQK | N_SIZ, immtypes | N_KEY);
17497 NEON_ENCODE (IMMED, inst);
17498 inst.instruction |= LOW4 (inst.operands[0].reg) << 12;
17499 inst.instruction |= HI1 (inst.operands[0].reg) << 22;
17500 inst.instruction |= LOW4 (inst.operands[1].reg);
17501 inst.instruction |= HI1 (inst.operands[1].reg) << 5;
17502 inst.instruction |= neon_quad (rs) << 6;
17503 inst.instruction |= (et.type == NT_float) << 10;
17504 inst.instruction |= neon_logbits (et.size) << 18;
17506 neon_dp_fixup (&inst);
17513 neon_compare (N_SUF_32, N_S_32 | N_F_16_32, FALSE);
17517 do_neon_cmp_inv (void)
17519 neon_compare (N_SUF_32, N_S_32 | N_F_16_32, TRUE);
17525 neon_compare (N_IF_32, N_IF_32, FALSE);
17528 /* For multiply instructions, we have the possibility of 16-bit or 32-bit
17529 scalars, which are encoded in 5 bits, M : Rm.
17530 For 16-bit scalars, the register is encoded in Rm[2:0] and the index in
17531 M:Rm[3], and for 32-bit scalars, the register is encoded in Rm[3:0] and the
17534 Dot Product instructions are similar to multiply instructions except elsize
17535 should always be 32.
17537 This function translates SCALAR, which is GAS's internal encoding of indexed
17538 scalar register, to raw encoding. There is also register and index range
17539 check based on ELSIZE. */
17542 neon_scalar_for_mul (unsigned scalar, unsigned elsize)
17544 unsigned regno = NEON_SCALAR_REG (scalar);
17545 unsigned elno = NEON_SCALAR_INDEX (scalar);
17550 if (regno > 7 || elno > 3)
17552 return regno | (elno << 3);
17555 if (regno > 15 || elno > 1)
17557 return regno | (elno << 4);
17561 first_error (_("scalar out of range for multiply instruction"));
17567 /* Encode multiply / multiply-accumulate scalar instructions. */
17570 neon_mul_mac (struct neon_type_el et, int ubit)
17574 /* Give a more helpful error message if we have an invalid type. */
17575 if (et.type == NT_invtype)
17578 scalar = neon_scalar_for_mul (inst.operands[2].reg, et.size);
17579 inst.instruction |= LOW4 (inst.operands[0].reg) << 12;
17580 inst.instruction |= HI1 (inst.operands[0].reg) << 22;
17581 inst.instruction |= LOW4 (inst.operands[1].reg) << 16;
17582 inst.instruction |= HI1 (inst.operands[1].reg) << 7;
17583 inst.instruction |= LOW4 (scalar);
17584 inst.instruction |= HI1 (scalar) << 5;
17585 inst.instruction |= (et.type == NT_float) << 8;
17586 inst.instruction |= neon_logbits (et.size) << 20;
17587 inst.instruction |= (ubit != 0) << 24;
17589 neon_dp_fixup (&inst);
17593 do_neon_mac_maybe_scalar (void)
17595 if (try_vfp_nsyn (3, do_vfp_nsyn_mla_mls) == SUCCESS)
17598 if (!check_simd_pred_availability (FALSE, NEON_CHECK_CC | NEON_CHECK_ARCH))
17601 if (inst.operands[2].isscalar)
17603 constraint (ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext), BAD_FPU);
17604 enum neon_shape rs = neon_select_shape (NS_DDS, NS_QQS, NS_NULL);
17605 struct neon_type_el et = neon_check_type (3, rs,
17606 N_EQK, N_EQK, N_I16 | N_I32 | N_F_16_32 | N_KEY);
17607 NEON_ENCODE (SCALAR, inst);
17608 neon_mul_mac (et, neon_quad (rs));
17610 else if (!inst.operands[2].isvec)
17612 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext), BAD_FPU);
17614 enum neon_shape rs = neon_select_shape (NS_QQR, NS_NULL);
17615 neon_check_type (3, rs, N_EQK, N_EQK, N_SU_MVE | N_KEY);
17617 neon_dyadic_misc (NT_unsigned, N_SU_MVE, 0);
17621 constraint (ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext), BAD_FPU);
17622 /* The "untyped" case can't happen. Do this to stop the "U" bit being
17623 affected if we specify unsigned args. */
17624 neon_dyadic_misc (NT_untyped, N_IF_32, 0);
17629 do_neon_fmac (void)
17631 if (ARM_CPU_HAS_FEATURE (cpu_variant, fpu_vfp_ext_fma)
17632 && try_vfp_nsyn (3, do_vfp_nsyn_fma_fms) == SUCCESS)
17635 if (!check_simd_pred_availability (TRUE, NEON_CHECK_CC | NEON_CHECK_ARCH))
17638 if (ARM_CPU_HAS_FEATURE (cpu_variant, mve_fp_ext))
17640 enum neon_shape rs = neon_select_shape (NS_QQQ, NS_QQR, NS_NULL);
17641 struct neon_type_el et = neon_check_type (3, rs, N_F_MVE | N_KEY, N_EQK,
17646 if (inst.operands[2].reg == REG_SP)
17647 as_tsktsk (MVE_BAD_SP);
17648 else if (inst.operands[2].reg == REG_PC)
17649 as_tsktsk (MVE_BAD_PC);
17651 inst.instruction = 0xee310e40;
17652 inst.instruction |= (et.size == 16) << 28;
17653 inst.instruction |= HI1 (inst.operands[0].reg) << 22;
17654 inst.instruction |= LOW4 (inst.operands[1].reg) << 16;
17655 inst.instruction |= LOW4 (inst.operands[0].reg) << 12;
17656 inst.instruction |= HI1 (inst.operands[1].reg) << 6;
17657 inst.instruction |= inst.operands[2].reg;
17664 constraint (!inst.operands[2].isvec, BAD_FPU);
17667 neon_dyadic_misc (NT_untyped, N_IF_32, 0);
17673 enum neon_shape rs = neon_select_shape (NS_DDD, NS_QQQ, NS_NULL);
17674 struct neon_type_el et = neon_check_type (3, rs,
17675 N_EQK, N_EQK, N_8 | N_16 | N_32 | N_KEY);
17676 neon_three_same (neon_quad (rs), 0, et.size);
17679 /* VMUL with 3 registers allows the P8 type. The scalar version supports the
17680 same types as the MAC equivalents. The polynomial type for this instruction
17681 is encoded the same as the integer type. */
17686 if (try_vfp_nsyn (3, do_vfp_nsyn_mul) == SUCCESS)
17689 if (!check_simd_pred_availability (FALSE, NEON_CHECK_CC | NEON_CHECK_ARCH))
17692 if (inst.operands[2].isscalar)
17694 constraint (ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext), BAD_FPU);
17695 do_neon_mac_maybe_scalar ();
17699 if (ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext))
17701 enum neon_shape rs = neon_select_shape (NS_QQR, NS_QQQ, NS_NULL);
17702 struct neon_type_el et
17703 = neon_check_type (3, rs, N_EQK, N_EQK, N_I_MVE | N_F_MVE | N_KEY);
17704 if (et.type == NT_float)
17705 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, mve_fp_ext),
17708 neon_dyadic_misc (NT_float, N_I_MVE | N_F_MVE, 0);
17712 constraint (!inst.operands[2].isvec, BAD_FPU);
17713 neon_dyadic_misc (NT_poly,
17714 N_I8 | N_I16 | N_I32 | N_F16 | N_F32 | N_P8, 0);
17720 do_neon_qdmulh (void)
17722 if (!check_simd_pred_availability (FALSE, NEON_CHECK_ARCH | NEON_CHECK_CC))
17725 if (inst.operands[2].isscalar)
17727 constraint (ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext), BAD_FPU);
17728 enum neon_shape rs = neon_select_shape (NS_DDS, NS_QQS, NS_NULL);
17729 struct neon_type_el et = neon_check_type (3, rs,
17730 N_EQK, N_EQK, N_S16 | N_S32 | N_KEY);
17731 NEON_ENCODE (SCALAR, inst);
17732 neon_mul_mac (et, neon_quad (rs));
17736 enum neon_shape rs;
17737 struct neon_type_el et;
17738 if (ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext))
17740 rs = neon_select_shape (NS_QQR, NS_QQQ, NS_NULL);
17741 et = neon_check_type (3, rs,
17742 N_EQK, N_EQK, N_S8 | N_S16 | N_S32 | N_KEY);
17746 rs = neon_select_shape (NS_DDD, NS_QQQ, NS_NULL);
17747 et = neon_check_type (3, rs,
17748 N_EQK, N_EQK, N_S16 | N_S32 | N_KEY);
17751 NEON_ENCODE (INTEGER, inst);
17753 mve_encode_qqr (et.size, 0, 0);
17755 /* The U bit (rounding) comes from bit mask. */
17756 neon_three_same (neon_quad (rs), 0, et.size);
17761 do_mve_vaddv (void)
17763 enum neon_shape rs = neon_select_shape (NS_RQ, NS_NULL);
17764 struct neon_type_el et
17765 = neon_check_type (2, rs, N_EQK, N_SU_32 | N_KEY);
17767 if (et.type == NT_invtype)
17768 first_error (BAD_EL_TYPE);
17770 if (inst.cond > COND_ALWAYS)
17771 inst.pred_insn_type = INSIDE_VPT_INSN;
17773 inst.pred_insn_type = MVE_OUTSIDE_PRED_INSN;
17775 constraint (inst.operands[1].reg > 14, MVE_BAD_QREG);
17777 mve_encode_rq (et.type == NT_unsigned, et.size);
17781 do_mve_vhcadd (void)
17783 enum neon_shape rs = neon_select_shape (NS_QQQI, NS_NULL);
17784 struct neon_type_el et
17785 = neon_check_type (3, rs, N_EQK, N_EQK, N_S8 | N_S16 | N_S32 | N_KEY);
17787 if (inst.cond > COND_ALWAYS)
17788 inst.pred_insn_type = INSIDE_VPT_INSN;
17790 inst.pred_insn_type = MVE_OUTSIDE_PRED_INSN;
17792 unsigned rot = inst.relocs[0].exp.X_add_number;
17793 constraint (rot != 90 && rot != 270, _("immediate out of range"));
17795 if (et.size == 32 && inst.operands[0].reg == inst.operands[2].reg)
17796 as_tsktsk (_("Warning: 32-bit element size and same first and third "
17797 "operand makes instruction UNPREDICTABLE"));
17799 mve_encode_qqq (0, et.size);
17800 inst.instruction |= (rot == 270) << 12;
17805 do_mve_vqdmull (void)
17807 enum neon_shape rs = neon_select_shape (NS_QQQ, NS_QQR, NS_NULL);
17808 struct neon_type_el et
17809 = neon_check_type (3, rs, N_EQK, N_EQK, N_S16 | N_S32 | N_KEY);
17812 && (inst.operands[0].reg == inst.operands[1].reg
17813 || (rs == NS_QQQ && inst.operands[0].reg == inst.operands[2].reg)))
17814 as_tsktsk (BAD_MVE_SRCDEST);
17816 if (inst.cond > COND_ALWAYS)
17817 inst.pred_insn_type = INSIDE_VPT_INSN;
17819 inst.pred_insn_type = MVE_OUTSIDE_PRED_INSN;
17823 mve_encode_qqq (et.size == 32, 64);
17824 inst.instruction |= 1;
17828 mve_encode_qqr (64, et.size == 32, 0);
17829 inst.instruction |= 0x3 << 5;
17836 enum neon_shape rs = neon_select_shape (NS_QQQ, NS_NULL);
17837 struct neon_type_el et
17838 = neon_check_type (3, rs, N_KEY | N_I32, N_EQK, N_EQK);
17840 if (et.type == NT_invtype)
17841 first_error (BAD_EL_TYPE);
17843 if (inst.cond > COND_ALWAYS)
17844 inst.pred_insn_type = INSIDE_VPT_INSN;
17846 inst.pred_insn_type = MVE_OUTSIDE_PRED_INSN;
17848 mve_encode_qqq (0, 64);
17852 do_mve_vbrsr (void)
17854 enum neon_shape rs = neon_select_shape (NS_QQR, NS_NULL);
17855 struct neon_type_el et
17856 = neon_check_type (3, rs, N_EQK, N_EQK, N_8 | N_16 | N_32 | N_KEY);
17858 if (inst.cond > COND_ALWAYS)
17859 inst.pred_insn_type = INSIDE_VPT_INSN;
17861 inst.pred_insn_type = MVE_OUTSIDE_PRED_INSN;
17863 mve_encode_qqr (et.size, 0, 0);
17869 neon_check_type (3, NS_QQQ, N_EQK, N_EQK, N_I32 | N_KEY);
17871 if (inst.cond > COND_ALWAYS)
17872 inst.pred_insn_type = INSIDE_VPT_INSN;
17874 inst.pred_insn_type = MVE_OUTSIDE_PRED_INSN;
17876 mve_encode_qqq (1, 64);
17880 do_mve_vmulh (void)
17882 enum neon_shape rs = neon_select_shape (NS_QQQ, NS_NULL);
17883 struct neon_type_el et
17884 = neon_check_type (3, rs, N_EQK, N_EQK, N_SU_MVE | N_KEY);
17886 if (inst.cond > COND_ALWAYS)
17887 inst.pred_insn_type = INSIDE_VPT_INSN;
17889 inst.pred_insn_type = MVE_OUTSIDE_PRED_INSN;
17891 mve_encode_qqq (et.type == NT_unsigned, et.size);
17895 do_mve_vqdmlah (void)
17897 enum neon_shape rs = neon_select_shape (NS_QQR, NS_NULL);
17898 struct neon_type_el et
17899 = neon_check_type (3, rs, N_EQK, N_EQK, N_SU_MVE | N_KEY);
17901 if (inst.cond > COND_ALWAYS)
17902 inst.pred_insn_type = INSIDE_VPT_INSN;
17904 inst.pred_insn_type = MVE_OUTSIDE_PRED_INSN;
17906 mve_encode_qqr (et.size, et.type == NT_unsigned, 0);
17910 do_mve_vqdmladh (void)
17912 enum neon_shape rs = neon_select_shape (NS_QQQ, NS_NULL);
17913 struct neon_type_el et
17914 = neon_check_type (3, rs, N_EQK, N_EQK, N_S8 | N_S16 | N_S32 | N_KEY);
17916 if (inst.cond > COND_ALWAYS)
17917 inst.pred_insn_type = INSIDE_VPT_INSN;
17919 inst.pred_insn_type = MVE_OUTSIDE_PRED_INSN;
17922 && (inst.operands[0].reg == inst.operands[1].reg
17923 || inst.operands[0].reg == inst.operands[2].reg))
17924 as_tsktsk (BAD_MVE_SRCDEST);
17926 mve_encode_qqq (0, et.size);
17931 do_mve_vmull (void)
17934 enum neon_shape rs = neon_select_shape (NS_HHH, NS_FFF, NS_DDD, NS_DDS,
17935 NS_QQS, NS_QQQ, NS_QQR, NS_NULL);
17936 if (!ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext)
17937 && inst.cond == COND_ALWAYS
17938 && ((unsigned)inst.instruction) == M_MNEM_vmullt)
17943 struct neon_type_el et = neon_check_type (3, rs, N_EQK , N_EQK,
17944 N_SUF_32 | N_F64 | N_P8
17945 | N_P16 | N_I_MVE | N_KEY);
17946 if (((et.type == NT_poly) && et.size == 8
17947 && ARM_CPU_IS_ANY (cpu_variant))
17948 || (et.type == NT_integer) || (et.type == NT_float))
17955 constraint (rs != NS_QQQ, BAD_FPU);
17956 struct neon_type_el et = neon_check_type (3, rs, N_EQK , N_EQK,
17957 N_SU_32 | N_P8 | N_P16 | N_KEY);
17959 /* We are dealing with MVE's vmullt. */
17961 && (inst.operands[0].reg == inst.operands[1].reg
17962 || inst.operands[0].reg == inst.operands[2].reg))
17963 as_tsktsk (BAD_MVE_SRCDEST);
17965 if (inst.cond > COND_ALWAYS)
17966 inst.pred_insn_type = INSIDE_VPT_INSN;
17968 inst.pred_insn_type = MVE_OUTSIDE_PRED_INSN;
17970 if (et.type == NT_poly)
17971 mve_encode_qqq (neon_logbits (et.size), 64);
17973 mve_encode_qqq (et.type == NT_unsigned, et.size);
17978 inst.instruction = N_MNEM_vmul;
17981 inst.pred_insn_type = INSIDE_IT_INSN;
17986 do_mve_vabav (void)
17988 enum neon_shape rs = neon_select_shape (NS_RQQ, NS_NULL);
17993 if (!ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext))
17996 struct neon_type_el et = neon_check_type (2, NS_NULL, N_EQK, N_KEY | N_S8
17997 | N_S16 | N_S32 | N_U8 | N_U16
18000 if (inst.cond > COND_ALWAYS)
18001 inst.pred_insn_type = INSIDE_VPT_INSN;
18003 inst.pred_insn_type = MVE_OUTSIDE_PRED_INSN;
18005 mve_encode_rqq (et.type == NT_unsigned, et.size);
18009 do_mve_vmladav (void)
18011 enum neon_shape rs = neon_select_shape (NS_RQQ, NS_NULL);
18012 struct neon_type_el et = neon_check_type (3, rs,
18013 N_EQK, N_EQK, N_SU_MVE | N_KEY);
18015 if (et.type == NT_unsigned
18016 && (inst.instruction == M_MNEM_vmladavx
18017 || inst.instruction == M_MNEM_vmladavax
18018 || inst.instruction == M_MNEM_vmlsdav
18019 || inst.instruction == M_MNEM_vmlsdava
18020 || inst.instruction == M_MNEM_vmlsdavx
18021 || inst.instruction == M_MNEM_vmlsdavax))
18022 first_error (BAD_SIMD_TYPE);
18024 constraint (inst.operands[2].reg > 14,
18025 _("MVE vector register in the range [Q0..Q7] expected"));
18027 if (inst.cond > COND_ALWAYS)
18028 inst.pred_insn_type = INSIDE_VPT_INSN;
18030 inst.pred_insn_type = MVE_OUTSIDE_PRED_INSN;
18032 if (inst.instruction == M_MNEM_vmlsdav
18033 || inst.instruction == M_MNEM_vmlsdava
18034 || inst.instruction == M_MNEM_vmlsdavx
18035 || inst.instruction == M_MNEM_vmlsdavax)
18036 inst.instruction |= (et.size == 8) << 28;
18038 inst.instruction |= (et.size == 8) << 8;
18040 mve_encode_rqq (et.type == NT_unsigned, 64);
18041 inst.instruction |= (et.size == 32) << 16;
18045 do_mve_vmlaldav (void)
18047 enum neon_shape rs = neon_select_shape (NS_RRQQ, NS_NULL);
18048 struct neon_type_el et
18049 = neon_check_type (4, rs, N_EQK, N_EQK, N_EQK,
18050 N_S16 | N_S32 | N_U16 | N_U32 | N_KEY);
18052 if (et.type == NT_unsigned
18053 && (inst.instruction == M_MNEM_vmlsldav
18054 || inst.instruction == M_MNEM_vmlsldava
18055 || inst.instruction == M_MNEM_vmlsldavx
18056 || inst.instruction == M_MNEM_vmlsldavax))
18057 first_error (BAD_SIMD_TYPE);
18059 if (inst.cond > COND_ALWAYS)
18060 inst.pred_insn_type = INSIDE_VPT_INSN;
18062 inst.pred_insn_type = MVE_OUTSIDE_PRED_INSN;
18064 mve_encode_rrqq (et.type == NT_unsigned, et.size);
18068 do_mve_vrmlaldavh (void)
18070 struct neon_type_el et;
18071 if (inst.instruction == M_MNEM_vrmlsldavh
18072 || inst.instruction == M_MNEM_vrmlsldavha
18073 || inst.instruction == M_MNEM_vrmlsldavhx
18074 || inst.instruction == M_MNEM_vrmlsldavhax)
18076 et = neon_check_type (4, NS_RRQQ, N_EQK, N_EQK, N_EQK, N_S32 | N_KEY);
18077 if (inst.operands[1].reg == REG_SP)
18078 as_tsktsk (MVE_BAD_SP);
18082 if (inst.instruction == M_MNEM_vrmlaldavhx
18083 || inst.instruction == M_MNEM_vrmlaldavhax)
18084 et = neon_check_type (4, NS_RRQQ, N_EQK, N_EQK, N_EQK, N_S32 | N_KEY);
18086 et = neon_check_type (4, NS_RRQQ, N_EQK, N_EQK, N_EQK,
18087 N_U32 | N_S32 | N_KEY);
18088 /* vrmlaldavh's encoding with SP as the second, odd, GPR operand may alias
18089 with vmax/min instructions, making the use of SP in assembly really
18090 nonsensical, so instead of issuing a warning like we do for other uses
18091 of SP for the odd register operand we error out. */
18092 constraint (inst.operands[1].reg == REG_SP, BAD_SP);
18095 /* Make sure we still check the second operand is an odd one and that PC is
18096 disallowed. This because we are parsing for any GPR operand, to be able
18097 to distinguish between giving a warning or an error for SP as described
18099 constraint ((inst.operands[1].reg % 2) != 1, BAD_EVEN);
18100 constraint (inst.operands[1].reg == REG_PC, BAD_PC);
18102 if (inst.cond > COND_ALWAYS)
18103 inst.pred_insn_type = INSIDE_VPT_INSN;
18105 inst.pred_insn_type = MVE_OUTSIDE_PRED_INSN;
18107 mve_encode_rrqq (et.type == NT_unsigned, 0);
18112 do_mve_vmaxnmv (void)
18114 enum neon_shape rs = neon_select_shape (NS_RQ, NS_NULL);
18115 struct neon_type_el et
18116 = neon_check_type (2, rs, N_EQK, N_F_MVE | N_KEY);
18118 if (inst.cond > COND_ALWAYS)
18119 inst.pred_insn_type = INSIDE_VPT_INSN;
18121 inst.pred_insn_type = MVE_OUTSIDE_PRED_INSN;
18123 if (inst.operands[0].reg == REG_SP)
18124 as_tsktsk (MVE_BAD_SP);
18125 else if (inst.operands[0].reg == REG_PC)
18126 as_tsktsk (MVE_BAD_PC);
18128 mve_encode_rq (et.size == 16, 64);
18132 do_mve_vmaxv (void)
18134 enum neon_shape rs = neon_select_shape (NS_RQ, NS_NULL);
18135 struct neon_type_el et;
18137 if (inst.instruction == M_MNEM_vmaxv || inst.instruction == M_MNEM_vminv)
18138 et = neon_check_type (2, rs, N_EQK, N_SU_MVE | N_KEY);
18140 et = neon_check_type (2, rs, N_EQK, N_S8 | N_S16 | N_S32 | N_KEY);
18142 if (inst.cond > COND_ALWAYS)
18143 inst.pred_insn_type = INSIDE_VPT_INSN;
18145 inst.pred_insn_type = MVE_OUTSIDE_PRED_INSN;
18147 if (inst.operands[0].reg == REG_SP)
18148 as_tsktsk (MVE_BAD_SP);
18149 else if (inst.operands[0].reg == REG_PC)
18150 as_tsktsk (MVE_BAD_PC);
18152 mve_encode_rq (et.type == NT_unsigned, et.size);
18157 do_neon_qrdmlah (void)
18159 if (!check_simd_pred_availability (FALSE, NEON_CHECK_ARCH | NEON_CHECK_CC))
18161 if (!ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext))
18163 /* Check we're on the correct architecture. */
18164 if (!mark_feature_used (&fpu_neon_ext_armv8))
18166 = _("instruction form not available on this architecture.");
18167 else if (!mark_feature_used (&fpu_neon_ext_v8_1))
18169 as_warn (_("this instruction implies use of ARMv8.1 AdvSIMD."));
18170 record_feature_use (&fpu_neon_ext_v8_1);
18172 if (inst.operands[2].isscalar)
18174 enum neon_shape rs = neon_select_shape (NS_DDS, NS_QQS, NS_NULL);
18175 struct neon_type_el et = neon_check_type (3, rs,
18176 N_EQK, N_EQK, N_S16 | N_S32 | N_KEY);
18177 NEON_ENCODE (SCALAR, inst);
18178 neon_mul_mac (et, neon_quad (rs));
18182 enum neon_shape rs = neon_select_shape (NS_DDD, NS_QQQ, NS_NULL);
18183 struct neon_type_el et = neon_check_type (3, rs,
18184 N_EQK, N_EQK, N_S16 | N_S32 | N_KEY);
18185 NEON_ENCODE (INTEGER, inst);
18186 /* The U bit (rounding) comes from bit mask. */
18187 neon_three_same (neon_quad (rs), 0, et.size);
18192 enum neon_shape rs = neon_select_shape (NS_QQR, NS_NULL);
18193 struct neon_type_el et
18194 = neon_check_type (3, rs, N_EQK, N_EQK, N_SU_MVE | N_KEY);
18196 NEON_ENCODE (INTEGER, inst);
18197 mve_encode_qqr (et.size, et.type == NT_unsigned, 0);
18202 do_neon_fcmp_absolute (void)
18204 enum neon_shape rs = neon_select_shape (NS_DDD, NS_QQQ, NS_NULL);
18205 struct neon_type_el et = neon_check_type (3, rs, N_EQK, N_EQK,
18206 N_F_16_32 | N_KEY);
18207 /* Size field comes from bit mask. */
18208 neon_three_same (neon_quad (rs), 1, et.size == 16 ? (int) et.size : -1);
18212 do_neon_fcmp_absolute_inv (void)
18214 neon_exchange_operands ();
18215 do_neon_fcmp_absolute ();
18219 do_neon_step (void)
18221 enum neon_shape rs = neon_select_shape (NS_DDD, NS_QQQ, NS_NULL);
18222 struct neon_type_el et = neon_check_type (3, rs, N_EQK, N_EQK,
18223 N_F_16_32 | N_KEY);
18224 neon_three_same (neon_quad (rs), 0, et.size == 16 ? (int) et.size : -1);
18228 do_neon_abs_neg (void)
18230 enum neon_shape rs;
18231 struct neon_type_el et;
18233 if (try_vfp_nsyn (2, do_vfp_nsyn_abs_neg) == SUCCESS)
18236 rs = neon_select_shape (NS_DD, NS_QQ, NS_NULL);
18237 et = neon_check_type (2, rs, N_EQK, N_S_32 | N_F_16_32 | N_KEY);
18239 if (!check_simd_pred_availability (et.type == NT_float,
18240 NEON_CHECK_ARCH | NEON_CHECK_CC))
18243 inst.instruction |= LOW4 (inst.operands[0].reg) << 12;
18244 inst.instruction |= HI1 (inst.operands[0].reg) << 22;
18245 inst.instruction |= LOW4 (inst.operands[1].reg);
18246 inst.instruction |= HI1 (inst.operands[1].reg) << 5;
18247 inst.instruction |= neon_quad (rs) << 6;
18248 inst.instruction |= (et.type == NT_float) << 10;
18249 inst.instruction |= neon_logbits (et.size) << 18;
18251 neon_dp_fixup (&inst);
18257 if (!check_simd_pred_availability (FALSE, NEON_CHECK_ARCH | NEON_CHECK_CC))
18260 enum neon_shape rs;
18261 struct neon_type_el et;
18262 if (ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext))
18264 rs = neon_select_shape (NS_QQI, NS_NULL);
18265 et = neon_check_type (2, rs, N_EQK, N_8 | N_16 | N_32 | N_KEY);
18269 rs = neon_select_shape (NS_DDI, NS_QQI, NS_NULL);
18270 et = neon_check_type (2, rs, N_EQK, N_8 | N_16 | N_32 | N_64 | N_KEY);
18274 int imm = inst.operands[2].imm;
18275 constraint (imm < 0 || (unsigned)imm >= et.size,
18276 _("immediate out of range for insert"));
18277 neon_imm_shift (FALSE, 0, neon_quad (rs), et, imm);
18283 if (!check_simd_pred_availability (FALSE, NEON_CHECK_ARCH | NEON_CHECK_CC))
18286 enum neon_shape rs;
18287 struct neon_type_el et;
18288 if (ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext))
18290 rs = neon_select_shape (NS_QQI, NS_NULL);
18291 et = neon_check_type (2, rs, N_EQK, N_8 | N_16 | N_32 | N_KEY);
18295 rs = neon_select_shape (NS_DDI, NS_QQI, NS_NULL);
18296 et = neon_check_type (2, rs, N_EQK, N_8 | N_16 | N_32 | N_64 | N_KEY);
18299 int imm = inst.operands[2].imm;
18300 constraint (imm < 1 || (unsigned)imm > et.size,
18301 _("immediate out of range for insert"));
18302 neon_imm_shift (FALSE, 0, neon_quad (rs), et, et.size - imm);
18306 do_neon_qshlu_imm (void)
18308 if (!check_simd_pred_availability (FALSE, NEON_CHECK_ARCH | NEON_CHECK_CC))
18311 enum neon_shape rs;
18312 struct neon_type_el et;
18313 if (ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext))
18315 rs = neon_select_shape (NS_QQI, NS_NULL);
18316 et = neon_check_type (2, rs, N_EQK, N_S8 | N_S16 | N_S32 | N_KEY);
18320 rs = neon_select_shape (NS_DDI, NS_QQI, NS_NULL);
18321 et = neon_check_type (2, rs, N_EQK | N_UNS,
18322 N_S8 | N_S16 | N_S32 | N_S64 | N_KEY);
18325 int imm = inst.operands[2].imm;
18326 constraint (imm < 0 || (unsigned)imm >= et.size,
18327 _("immediate out of range for shift"));
18328 /* Only encodes the 'U present' variant of the instruction.
18329 In this case, signed types have OP (bit 8) set to 0.
18330 Unsigned types have OP set to 1. */
18331 inst.instruction |= (et.type == NT_unsigned) << 8;
18332 /* The rest of the bits are the same as other immediate shifts. */
18333 neon_imm_shift (FALSE, 0, neon_quad (rs), et, imm);
18337 do_neon_qmovn (void)
18339 struct neon_type_el et = neon_check_type (2, NS_DQ,
18340 N_EQK | N_HLF, N_SU_16_64 | N_KEY);
18341 /* Saturating move where operands can be signed or unsigned, and the
18342 destination has the same signedness. */
18343 NEON_ENCODE (INTEGER, inst);
18344 if (et.type == NT_unsigned)
18345 inst.instruction |= 0xc0;
18347 inst.instruction |= 0x80;
18348 neon_two_same (0, 1, et.size / 2);
18352 do_neon_qmovun (void)
18354 struct neon_type_el et = neon_check_type (2, NS_DQ,
18355 N_EQK | N_HLF | N_UNS, N_S16 | N_S32 | N_S64 | N_KEY);
18356 /* Saturating move with unsigned results. Operands must be signed. */
18357 NEON_ENCODE (INTEGER, inst);
18358 neon_two_same (0, 1, et.size / 2);
18362 do_neon_rshift_sat_narrow (void)
18364 /* FIXME: Types for narrowing. If operands are signed, results can be signed
18365 or unsigned. If operands are unsigned, results must also be unsigned. */
18366 struct neon_type_el et = neon_check_type (2, NS_DQI,
18367 N_EQK | N_HLF, N_SU_16_64 | N_KEY);
18368 int imm = inst.operands[2].imm;
18369 /* This gets the bounds check, size encoding and immediate bits calculation
18373 /* VQ{R}SHRN.I<size> <Dd>, <Qm>, #0 is a synonym for
18374 VQMOVN.I<size> <Dd>, <Qm>. */
18377 inst.operands[2].present = 0;
18378 inst.instruction = N_MNEM_vqmovn;
18383 constraint (imm < 1 || (unsigned)imm > et.size,
18384 _("immediate out of range"));
18385 neon_imm_shift (TRUE, et.type == NT_unsigned, 0, et, et.size - imm);
18389 do_neon_rshift_sat_narrow_u (void)
18391 /* FIXME: Types for narrowing. If operands are signed, results can be signed
18392 or unsigned. If operands are unsigned, results must also be unsigned. */
18393 struct neon_type_el et = neon_check_type (2, NS_DQI,
18394 N_EQK | N_HLF | N_UNS, N_S16 | N_S32 | N_S64 | N_KEY);
18395 int imm = inst.operands[2].imm;
18396 /* This gets the bounds check, size encoding and immediate bits calculation
18400 /* VQSHRUN.I<size> <Dd>, <Qm>, #0 is a synonym for
18401 VQMOVUN.I<size> <Dd>, <Qm>. */
18404 inst.operands[2].present = 0;
18405 inst.instruction = N_MNEM_vqmovun;
18410 constraint (imm < 1 || (unsigned)imm > et.size,
18411 _("immediate out of range"));
18412 /* FIXME: The manual is kind of unclear about what value U should have in
18413 VQ{R}SHRUN instructions, but U=0, op=0 definitely encodes VRSHR, so it
18415 neon_imm_shift (TRUE, 1, 0, et, et.size - imm);
18419 do_neon_movn (void)
18421 struct neon_type_el et = neon_check_type (2, NS_DQ,
18422 N_EQK | N_HLF, N_I16 | N_I32 | N_I64 | N_KEY);
18423 NEON_ENCODE (INTEGER, inst);
18424 neon_two_same (0, 1, et.size / 2);
18428 do_neon_rshift_narrow (void)
18430 struct neon_type_el et = neon_check_type (2, NS_DQI,
18431 N_EQK | N_HLF, N_I16 | N_I32 | N_I64 | N_KEY);
18432 int imm = inst.operands[2].imm;
18433 /* This gets the bounds check, size encoding and immediate bits calculation
18437 /* If immediate is zero then we are a pseudo-instruction for
18438 VMOVN.I<size> <Dd>, <Qm> */
18441 inst.operands[2].present = 0;
18442 inst.instruction = N_MNEM_vmovn;
18447 constraint (imm < 1 || (unsigned)imm > et.size,
18448 _("immediate out of range for narrowing operation"));
18449 neon_imm_shift (FALSE, 0, 0, et, et.size - imm);
18453 do_neon_shll (void)
18455 /* FIXME: Type checking when lengthening. */
18456 struct neon_type_el et = neon_check_type (2, NS_QDI,
18457 N_EQK | N_DBL, N_I8 | N_I16 | N_I32 | N_KEY);
18458 unsigned imm = inst.operands[2].imm;
18460 if (imm == et.size)
18462 /* Maximum shift variant. */
18463 NEON_ENCODE (INTEGER, inst);
18464 inst.instruction |= LOW4 (inst.operands[0].reg) << 12;
18465 inst.instruction |= HI1 (inst.operands[0].reg) << 22;
18466 inst.instruction |= LOW4 (inst.operands[1].reg);
18467 inst.instruction |= HI1 (inst.operands[1].reg) << 5;
18468 inst.instruction |= neon_logbits (et.size) << 18;
18470 neon_dp_fixup (&inst);
18474 /* A more-specific type check for non-max versions. */
18475 et = neon_check_type (2, NS_QDI,
18476 N_EQK | N_DBL, N_SU_32 | N_KEY);
18477 NEON_ENCODE (IMMED, inst);
18478 neon_imm_shift (TRUE, et.type == NT_unsigned, 0, et, imm);
18482 /* Check the various types for the VCVT instruction, and return which version
18483 the current instruction is. */
18485 #define CVT_FLAVOUR_VAR \
18486 CVT_VAR (s32_f32, N_S32, N_F32, whole_reg, "ftosls", "ftosis", "ftosizs") \
18487 CVT_VAR (u32_f32, N_U32, N_F32, whole_reg, "ftouls", "ftouis", "ftouizs") \
18488 CVT_VAR (f32_s32, N_F32, N_S32, whole_reg, "fsltos", "fsitos", NULL) \
18489 CVT_VAR (f32_u32, N_F32, N_U32, whole_reg, "fultos", "fuitos", NULL) \
18490 /* Half-precision conversions. */ \
18491 CVT_VAR (s16_f16, N_S16, N_F16 | N_KEY, whole_reg, NULL, NULL, NULL) \
18492 CVT_VAR (u16_f16, N_U16, N_F16 | N_KEY, whole_reg, NULL, NULL, NULL) \
18493 CVT_VAR (f16_s16, N_F16 | N_KEY, N_S16, whole_reg, NULL, NULL, NULL) \
18494 CVT_VAR (f16_u16, N_F16 | N_KEY, N_U16, whole_reg, NULL, NULL, NULL) \
18495 CVT_VAR (f32_f16, N_F32, N_F16, whole_reg, NULL, NULL, NULL) \
18496 CVT_VAR (f16_f32, N_F16, N_F32, whole_reg, NULL, NULL, NULL) \
18497 /* New VCVT instructions introduced by ARMv8.2 fp16 extension. \
18498 Compared with single/double precision variants, only the co-processor \
18499 field is different, so the encoding flow is reused here. */ \
18500 CVT_VAR (f16_s32, N_F16 | N_KEY, N_S32, N_VFP, "fsltos", "fsitos", NULL) \
18501 CVT_VAR (f16_u32, N_F16 | N_KEY, N_U32, N_VFP, "fultos", "fuitos", NULL) \
18502 CVT_VAR (u32_f16, N_U32, N_F16 | N_KEY, N_VFP, "ftouls", "ftouis", "ftouizs")\
18503 CVT_VAR (s32_f16, N_S32, N_F16 | N_KEY, N_VFP, "ftosls", "ftosis", "ftosizs")\
18504 /* VFP instructions. */ \
18505 CVT_VAR (f32_f64, N_F32, N_F64, N_VFP, NULL, "fcvtsd", NULL) \
18506 CVT_VAR (f64_f32, N_F64, N_F32, N_VFP, NULL, "fcvtds", NULL) \
18507 CVT_VAR (s32_f64, N_S32, N_F64 | key, N_VFP, "ftosld", "ftosid", "ftosizd") \
18508 CVT_VAR (u32_f64, N_U32, N_F64 | key, N_VFP, "ftould", "ftouid", "ftouizd") \
18509 CVT_VAR (f64_s32, N_F64 | key, N_S32, N_VFP, "fsltod", "fsitod", NULL) \
18510 CVT_VAR (f64_u32, N_F64 | key, N_U32, N_VFP, "fultod", "fuitod", NULL) \
18511 /* VFP instructions with bitshift. */ \
18512 CVT_VAR (f32_s16, N_F32 | key, N_S16, N_VFP, "fshtos", NULL, NULL) \
18513 CVT_VAR (f32_u16, N_F32 | key, N_U16, N_VFP, "fuhtos", NULL, NULL) \
18514 CVT_VAR (f64_s16, N_F64 | key, N_S16, N_VFP, "fshtod", NULL, NULL) \
18515 CVT_VAR (f64_u16, N_F64 | key, N_U16, N_VFP, "fuhtod", NULL, NULL) \
18516 CVT_VAR (s16_f32, N_S16, N_F32 | key, N_VFP, "ftoshs", NULL, NULL) \
18517 CVT_VAR (u16_f32, N_U16, N_F32 | key, N_VFP, "ftouhs", NULL, NULL) \
18518 CVT_VAR (s16_f64, N_S16, N_F64 | key, N_VFP, "ftoshd", NULL, NULL) \
18519 CVT_VAR (u16_f64, N_U16, N_F64 | key, N_VFP, "ftouhd", NULL, NULL)
18521 #define CVT_VAR(C, X, Y, R, BSN, CN, ZN) \
18522 neon_cvt_flavour_##C,
18524 /* The different types of conversions we can do. */
18525 enum neon_cvt_flavour
18528 neon_cvt_flavour_invalid,
18529 neon_cvt_flavour_first_fp = neon_cvt_flavour_f32_f64
18534 static enum neon_cvt_flavour
18535 get_neon_cvt_flavour (enum neon_shape rs)
18537 #define CVT_VAR(C,X,Y,R,BSN,CN,ZN) \
18538 et = neon_check_type (2, rs, (R) | (X), (R) | (Y)); \
18539 if (et.type != NT_invtype) \
18541 inst.error = NULL; \
18542 return (neon_cvt_flavour_##C); \
18545 struct neon_type_el et;
18546 unsigned whole_reg = (rs == NS_FFI || rs == NS_FD || rs == NS_DF
18547 || rs == NS_FF) ? N_VFP : 0;
18548 /* The instruction versions which take an immediate take one register
18549 argument, which is extended to the width of the full register. Thus the
18550 "source" and "destination" registers must have the same width. Hack that
18551 here by making the size equal to the key (wider, in this case) operand. */
18552 unsigned key = (rs == NS_QQI || rs == NS_DDI || rs == NS_FFI) ? N_KEY : 0;
18556 return neon_cvt_flavour_invalid;
18571 /* Neon-syntax VFP conversions. */
18574 do_vfp_nsyn_cvt (enum neon_shape rs, enum neon_cvt_flavour flavour)
18576 const char *opname = 0;
18578 if (rs == NS_DDI || rs == NS_QQI || rs == NS_FFI
18579 || rs == NS_FHI || rs == NS_HFI)
18581 /* Conversions with immediate bitshift. */
18582 const char *enc[] =
18584 #define CVT_VAR(C,A,B,R,BSN,CN,ZN) BSN,
18590 if (flavour < (int) ARRAY_SIZE (enc))
18592 opname = enc[flavour];
18593 constraint (inst.operands[0].reg != inst.operands[1].reg,
18594 _("operands 0 and 1 must be the same register"));
18595 inst.operands[1] = inst.operands[2];
18596 memset (&inst.operands[2], '\0', sizeof (inst.operands[2]));
18601 /* Conversions without bitshift. */
18602 const char *enc[] =
18604 #define CVT_VAR(C,A,B,R,BSN,CN,ZN) CN,
18610 if (flavour < (int) ARRAY_SIZE (enc))
18611 opname = enc[flavour];
18615 do_vfp_nsyn_opcode (opname);
18617 /* ARMv8.2 fp16 VCVT instruction. */
18618 if (flavour == neon_cvt_flavour_s32_f16
18619 || flavour == neon_cvt_flavour_u32_f16
18620 || flavour == neon_cvt_flavour_f16_u32
18621 || flavour == neon_cvt_flavour_f16_s32)
18622 do_scalar_fp16_v82_encode ();
18626 do_vfp_nsyn_cvtz (void)
18628 enum neon_shape rs = neon_select_shape (NS_FH, NS_FF, NS_FD, NS_NULL);
18629 enum neon_cvt_flavour flavour = get_neon_cvt_flavour (rs);
18630 const char *enc[] =
18632 #define CVT_VAR(C,A,B,R,BSN,CN,ZN) ZN,
18638 if (flavour < (int) ARRAY_SIZE (enc) && enc[flavour])
18639 do_vfp_nsyn_opcode (enc[flavour]);
18643 do_vfp_nsyn_cvt_fpv8 (enum neon_cvt_flavour flavour,
18644 enum neon_cvt_mode mode)
18649 /* Targets like FPv5-SP-D16 don't support FP v8 instructions with
18650 D register operands. */
18651 if (flavour == neon_cvt_flavour_s32_f64
18652 || flavour == neon_cvt_flavour_u32_f64)
18653 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, fpu_vfp_ext_armv8),
18656 if (flavour == neon_cvt_flavour_s32_f16
18657 || flavour == neon_cvt_flavour_u32_f16)
18658 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_fp16),
18661 set_pred_insn_type (OUTSIDE_PRED_INSN);
18665 case neon_cvt_flavour_s32_f64:
18669 case neon_cvt_flavour_s32_f32:
18673 case neon_cvt_flavour_s32_f16:
18677 case neon_cvt_flavour_u32_f64:
18681 case neon_cvt_flavour_u32_f32:
18685 case neon_cvt_flavour_u32_f16:
18690 first_error (_("invalid instruction shape"));
18696 case neon_cvt_mode_a: rm = 0; break;
18697 case neon_cvt_mode_n: rm = 1; break;
18698 case neon_cvt_mode_p: rm = 2; break;
18699 case neon_cvt_mode_m: rm = 3; break;
18700 default: first_error (_("invalid rounding mode")); return;
18703 NEON_ENCODE (FPV8, inst);
18704 encode_arm_vfp_reg (inst.operands[0].reg, VFP_REG_Sd);
18705 encode_arm_vfp_reg (inst.operands[1].reg, sz == 1 ? VFP_REG_Dm : VFP_REG_Sm);
18706 inst.instruction |= sz << 8;
18708 /* ARMv8.2 fp16 VCVT instruction. */
18709 if (flavour == neon_cvt_flavour_s32_f16
18710 ||flavour == neon_cvt_flavour_u32_f16)
18711 do_scalar_fp16_v82_encode ();
18712 inst.instruction |= op << 7;
18713 inst.instruction |= rm << 16;
18714 inst.instruction |= 0xf0000000;
18715 inst.is_neon = TRUE;
18719 do_neon_cvt_1 (enum neon_cvt_mode mode)
18721 enum neon_shape rs = neon_select_shape (NS_DDI, NS_QQI, NS_FFI, NS_DD, NS_QQ,
18722 NS_FD, NS_DF, NS_FF, NS_QD, NS_DQ,
18723 NS_FH, NS_HF, NS_FHI, NS_HFI,
18725 enum neon_cvt_flavour flavour = get_neon_cvt_flavour (rs);
18727 if (flavour == neon_cvt_flavour_invalid)
18730 /* PR11109: Handle round-to-zero for VCVT conversions. */
18731 if (mode == neon_cvt_mode_z
18732 && ARM_CPU_HAS_FEATURE (cpu_variant, fpu_arch_vfp_v2)
18733 && (flavour == neon_cvt_flavour_s16_f16
18734 || flavour == neon_cvt_flavour_u16_f16
18735 || flavour == neon_cvt_flavour_s32_f32
18736 || flavour == neon_cvt_flavour_u32_f32
18737 || flavour == neon_cvt_flavour_s32_f64
18738 || flavour == neon_cvt_flavour_u32_f64)
18739 && (rs == NS_FD || rs == NS_FF))
18741 do_vfp_nsyn_cvtz ();
18745 /* ARMv8.2 fp16 VCVT conversions. */
18746 if (mode == neon_cvt_mode_z
18747 && ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_fp16)
18748 && (flavour == neon_cvt_flavour_s32_f16
18749 || flavour == neon_cvt_flavour_u32_f16)
18752 do_vfp_nsyn_cvtz ();
18753 do_scalar_fp16_v82_encode ();
18757 /* VFP rather than Neon conversions. */
18758 if (flavour >= neon_cvt_flavour_first_fp)
18760 if (mode == neon_cvt_mode_x || mode == neon_cvt_mode_z)
18761 do_vfp_nsyn_cvt (rs, flavour);
18763 do_vfp_nsyn_cvt_fpv8 (flavour, mode);
18771 if (mode == neon_cvt_mode_z
18772 && (flavour == neon_cvt_flavour_f16_s16
18773 || flavour == neon_cvt_flavour_f16_u16
18774 || flavour == neon_cvt_flavour_s16_f16
18775 || flavour == neon_cvt_flavour_u16_f16
18776 || flavour == neon_cvt_flavour_f32_u32
18777 || flavour == neon_cvt_flavour_f32_s32
18778 || flavour == neon_cvt_flavour_s32_f32
18779 || flavour == neon_cvt_flavour_u32_f32))
18781 if (!check_simd_pred_availability (TRUE,
18782 NEON_CHECK_CC | NEON_CHECK_ARCH))
18785 else if (mode == neon_cvt_mode_n)
18787 /* We are dealing with vcvt with the 'ne' condition. */
18789 inst.instruction = N_MNEM_vcvt;
18790 do_neon_cvt_1 (neon_cvt_mode_z);
18793 /* fall through. */
18797 unsigned enctab[] = {0x0000100, 0x1000100, 0x0, 0x1000000,
18798 0x0000100, 0x1000100, 0x0, 0x1000000};
18800 if ((rs != NS_QQI || !ARM_CPU_HAS_FEATURE (cpu_variant, mve_fp_ext))
18801 && vfp_or_neon_is_neon (NEON_CHECK_CC | NEON_CHECK_ARCH) == FAIL)
18804 if (ARM_CPU_HAS_FEATURE (cpu_variant, mve_fp_ext))
18806 constraint (inst.operands[2].present && inst.operands[2].imm == 0,
18807 _("immediate value out of range"));
18810 case neon_cvt_flavour_f16_s16:
18811 case neon_cvt_flavour_f16_u16:
18812 case neon_cvt_flavour_s16_f16:
18813 case neon_cvt_flavour_u16_f16:
18814 constraint (inst.operands[2].imm > 16,
18815 _("immediate value out of range"));
18817 case neon_cvt_flavour_f32_u32:
18818 case neon_cvt_flavour_f32_s32:
18819 case neon_cvt_flavour_s32_f32:
18820 case neon_cvt_flavour_u32_f32:
18821 constraint (inst.operands[2].imm > 32,
18822 _("immediate value out of range"));
18825 inst.error = BAD_FPU;
18830 /* Fixed-point conversion with #0 immediate is encoded as an
18831 integer conversion. */
18832 if (inst.operands[2].present && inst.operands[2].imm == 0)
18834 NEON_ENCODE (IMMED, inst);
18835 if (flavour != neon_cvt_flavour_invalid)
18836 inst.instruction |= enctab[flavour];
18837 inst.instruction |= LOW4 (inst.operands[0].reg) << 12;
18838 inst.instruction |= HI1 (inst.operands[0].reg) << 22;
18839 inst.instruction |= LOW4 (inst.operands[1].reg);
18840 inst.instruction |= HI1 (inst.operands[1].reg) << 5;
18841 inst.instruction |= neon_quad (rs) << 6;
18842 inst.instruction |= 1 << 21;
18843 if (flavour < neon_cvt_flavour_s16_f16)
18845 inst.instruction |= 1 << 21;
18846 immbits = 32 - inst.operands[2].imm;
18847 inst.instruction |= immbits << 16;
18851 inst.instruction |= 3 << 20;
18852 immbits = 16 - inst.operands[2].imm;
18853 inst.instruction |= immbits << 16;
18854 inst.instruction &= ~(1 << 9);
18857 neon_dp_fixup (&inst);
18862 if ((mode == neon_cvt_mode_a || mode == neon_cvt_mode_n
18863 || mode == neon_cvt_mode_m || mode == neon_cvt_mode_p)
18864 && (flavour == neon_cvt_flavour_s16_f16
18865 || flavour == neon_cvt_flavour_u16_f16
18866 || flavour == neon_cvt_flavour_s32_f32
18867 || flavour == neon_cvt_flavour_u32_f32))
18869 if (!check_simd_pred_availability (TRUE,
18870 NEON_CHECK_CC | NEON_CHECK_ARCH8))
18873 else if (mode == neon_cvt_mode_z
18874 && (flavour == neon_cvt_flavour_f16_s16
18875 || flavour == neon_cvt_flavour_f16_u16
18876 || flavour == neon_cvt_flavour_s16_f16
18877 || flavour == neon_cvt_flavour_u16_f16
18878 || flavour == neon_cvt_flavour_f32_u32
18879 || flavour == neon_cvt_flavour_f32_s32
18880 || flavour == neon_cvt_flavour_s32_f32
18881 || flavour == neon_cvt_flavour_u32_f32))
18883 if (!check_simd_pred_availability (TRUE,
18884 NEON_CHECK_CC | NEON_CHECK_ARCH))
18887 /* fall through. */
18889 if (mode != neon_cvt_mode_x && mode != neon_cvt_mode_z)
18892 NEON_ENCODE (FLOAT, inst);
18893 if (!check_simd_pred_availability (TRUE,
18894 NEON_CHECK_CC | NEON_CHECK_ARCH8))
18897 inst.instruction |= LOW4 (inst.operands[0].reg) << 12;
18898 inst.instruction |= HI1 (inst.operands[0].reg) << 22;
18899 inst.instruction |= LOW4 (inst.operands[1].reg);
18900 inst.instruction |= HI1 (inst.operands[1].reg) << 5;
18901 inst.instruction |= neon_quad (rs) << 6;
18902 inst.instruction |= (flavour == neon_cvt_flavour_u16_f16
18903 || flavour == neon_cvt_flavour_u32_f32) << 7;
18904 inst.instruction |= mode << 8;
18905 if (flavour == neon_cvt_flavour_u16_f16
18906 || flavour == neon_cvt_flavour_s16_f16)
18907 /* Mask off the original size bits and reencode them. */
18908 inst.instruction = ((inst.instruction & 0xfff3ffff) | (1 << 18));
18911 inst.instruction |= 0xfc000000;
18913 inst.instruction |= 0xf0000000;
18919 unsigned enctab[] = { 0x100, 0x180, 0x0, 0x080,
18920 0x100, 0x180, 0x0, 0x080};
18922 NEON_ENCODE (INTEGER, inst);
18924 if (!ARM_CPU_HAS_FEATURE (cpu_variant, mve_fp_ext))
18926 if (vfp_or_neon_is_neon (NEON_CHECK_CC | NEON_CHECK_ARCH) == FAIL)
18930 if (flavour != neon_cvt_flavour_invalid)
18931 inst.instruction |= enctab[flavour];
18933 inst.instruction |= LOW4 (inst.operands[0].reg) << 12;
18934 inst.instruction |= HI1 (inst.operands[0].reg) << 22;
18935 inst.instruction |= LOW4 (inst.operands[1].reg);
18936 inst.instruction |= HI1 (inst.operands[1].reg) << 5;
18937 inst.instruction |= neon_quad (rs) << 6;
18938 if (flavour >= neon_cvt_flavour_s16_f16
18939 && flavour <= neon_cvt_flavour_f16_u16)
18940 /* Half precision. */
18941 inst.instruction |= 1 << 18;
18943 inst.instruction |= 2 << 18;
18945 neon_dp_fixup (&inst);
18950 /* Half-precision conversions for Advanced SIMD -- neon. */
18953 if (vfp_or_neon_is_neon (NEON_CHECK_CC | NEON_CHECK_ARCH) == FAIL)
18957 && (inst.vectype.el[0].size != 16 || inst.vectype.el[1].size != 32))
18959 as_bad (_("operand size must match register width"));
18964 && ((inst.vectype.el[0].size != 32 || inst.vectype.el[1].size != 16)))
18966 as_bad (_("operand size must match register width"));
18971 inst.instruction = 0x3b60600;
18973 inst.instruction = 0x3b60700;
18975 inst.instruction |= LOW4 (inst.operands[0].reg) << 12;
18976 inst.instruction |= HI1 (inst.operands[0].reg) << 22;
18977 inst.instruction |= LOW4 (inst.operands[1].reg);
18978 inst.instruction |= HI1 (inst.operands[1].reg) << 5;
18979 neon_dp_fixup (&inst);
18983 /* Some VFP conversions go here (s32 <-> f32, u32 <-> f32). */
18984 if (mode == neon_cvt_mode_x || mode == neon_cvt_mode_z)
18985 do_vfp_nsyn_cvt (rs, flavour);
18987 do_vfp_nsyn_cvt_fpv8 (flavour, mode);
18992 do_neon_cvtr (void)
18994 do_neon_cvt_1 (neon_cvt_mode_x);
19000 do_neon_cvt_1 (neon_cvt_mode_z);
19004 do_neon_cvta (void)
19006 do_neon_cvt_1 (neon_cvt_mode_a);
19010 do_neon_cvtn (void)
19012 do_neon_cvt_1 (neon_cvt_mode_n);
19016 do_neon_cvtp (void)
19018 do_neon_cvt_1 (neon_cvt_mode_p);
19022 do_neon_cvtm (void)
19024 do_neon_cvt_1 (neon_cvt_mode_m);
19028 do_neon_cvttb_2 (bfd_boolean t, bfd_boolean to, bfd_boolean is_double)
19031 mark_feature_used (&fpu_vfp_ext_armv8);
19033 encode_arm_vfp_reg (inst.operands[0].reg,
19034 (is_double && !to) ? VFP_REG_Dd : VFP_REG_Sd);
19035 encode_arm_vfp_reg (inst.operands[1].reg,
19036 (is_double && to) ? VFP_REG_Dm : VFP_REG_Sm);
19037 inst.instruction |= to ? 0x10000 : 0;
19038 inst.instruction |= t ? 0x80 : 0;
19039 inst.instruction |= is_double ? 0x100 : 0;
19040 do_vfp_cond_or_thumb ();
19044 do_neon_cvttb_1 (bfd_boolean t)
19046 enum neon_shape rs = neon_select_shape (NS_HF, NS_HD, NS_FH, NS_FF, NS_FD,
19047 NS_DF, NS_DH, NS_QQ, NS_QQI, NS_NULL);
19051 else if (rs == NS_QQ || rs == NS_QQI)
19053 int single_to_half = 0;
19054 if (!check_simd_pred_availability (TRUE, NEON_CHECK_ARCH))
19057 enum neon_cvt_flavour flavour = get_neon_cvt_flavour (rs);
19059 if (ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext)
19060 && (flavour == neon_cvt_flavour_u16_f16
19061 || flavour == neon_cvt_flavour_s16_f16
19062 || flavour == neon_cvt_flavour_f16_s16
19063 || flavour == neon_cvt_flavour_f16_u16
19064 || flavour == neon_cvt_flavour_u32_f32
19065 || flavour == neon_cvt_flavour_s32_f32
19066 || flavour == neon_cvt_flavour_f32_s32
19067 || flavour == neon_cvt_flavour_f32_u32))
19070 inst.instruction = N_MNEM_vcvt;
19071 set_pred_insn_type (INSIDE_VPT_INSN);
19072 do_neon_cvt_1 (neon_cvt_mode_z);
19075 else if (rs == NS_QQ && flavour == neon_cvt_flavour_f32_f16)
19076 single_to_half = 1;
19077 else if (rs == NS_QQ && flavour != neon_cvt_flavour_f16_f32)
19079 first_error (BAD_FPU);
19083 inst.instruction = 0xee3f0e01;
19084 inst.instruction |= single_to_half << 28;
19085 inst.instruction |= HI1 (inst.operands[0].reg) << 22;
19086 inst.instruction |= LOW4 (inst.operands[0].reg) << 13;
19087 inst.instruction |= t << 12;
19088 inst.instruction |= HI1 (inst.operands[1].reg) << 5;
19089 inst.instruction |= LOW4 (inst.operands[1].reg) << 1;
19092 else if (neon_check_type (2, rs, N_F16, N_F32 | N_VFP).type != NT_invtype)
19095 do_neon_cvttb_2 (t, /*to=*/TRUE, /*is_double=*/FALSE);
19097 else if (neon_check_type (2, rs, N_F32 | N_VFP, N_F16).type != NT_invtype)
19100 do_neon_cvttb_2 (t, /*to=*/FALSE, /*is_double=*/FALSE);
19102 else if (neon_check_type (2, rs, N_F16, N_F64 | N_VFP).type != NT_invtype)
19104 /* The VCVTB and VCVTT instructions with D-register operands
19105 don't work for SP only targets. */
19106 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, fpu_vfp_ext_armv8),
19110 do_neon_cvttb_2 (t, /*to=*/TRUE, /*is_double=*/TRUE);
19112 else if (neon_check_type (2, rs, N_F64 | N_VFP, N_F16).type != NT_invtype)
19114 /* The VCVTB and VCVTT instructions with D-register operands
19115 don't work for SP only targets. */
19116 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, fpu_vfp_ext_armv8),
19120 do_neon_cvttb_2 (t, /*to=*/FALSE, /*is_double=*/TRUE);
19127 do_neon_cvtb (void)
19129 do_neon_cvttb_1 (FALSE);
19134 do_neon_cvtt (void)
19136 do_neon_cvttb_1 (TRUE);
19140 neon_move_immediate (void)
19142 enum neon_shape rs = neon_select_shape (NS_DI, NS_QI, NS_NULL);
19143 struct neon_type_el et = neon_check_type (2, rs,
19144 N_I8 | N_I16 | N_I32 | N_I64 | N_F32 | N_KEY, N_EQK);
19145 unsigned immlo, immhi = 0, immbits;
19146 int op, cmode, float_p;
19148 constraint (et.type == NT_invtype,
19149 _("operand size must be specified for immediate VMOV"));
19151 /* We start out as an MVN instruction if OP = 1, MOV otherwise. */
19152 op = (inst.instruction & (1 << 5)) != 0;
19154 immlo = inst.operands[1].imm;
19155 if (inst.operands[1].regisimm)
19156 immhi = inst.operands[1].reg;
19158 constraint (et.size < 32 && (immlo & ~((1 << et.size) - 1)) != 0,
19159 _("immediate has bits set outside the operand size"));
19161 float_p = inst.operands[1].immisfloat;
19163 if ((cmode = neon_cmode_for_move_imm (immlo, immhi, float_p, &immbits, &op,
19164 et.size, et.type)) == FAIL)
19166 /* Invert relevant bits only. */
19167 neon_invert_size (&immlo, &immhi, et.size);
19168 /* Flip from VMOV/VMVN to VMVN/VMOV. Some immediate types are unavailable
19169 with one or the other; those cases are caught by
19170 neon_cmode_for_move_imm. */
19172 if ((cmode = neon_cmode_for_move_imm (immlo, immhi, float_p, &immbits,
19173 &op, et.size, et.type)) == FAIL)
19175 first_error (_("immediate out of range"));
19180 inst.instruction &= ~(1 << 5);
19181 inst.instruction |= op << 5;
19183 inst.instruction |= LOW4 (inst.operands[0].reg) << 12;
19184 inst.instruction |= HI1 (inst.operands[0].reg) << 22;
19185 inst.instruction |= neon_quad (rs) << 6;
19186 inst.instruction |= cmode << 8;
19188 neon_write_immbits (immbits);
19194 if (!check_simd_pred_availability (FALSE, NEON_CHECK_CC | NEON_CHECK_ARCH))
19197 if (inst.operands[1].isreg)
19199 enum neon_shape rs;
19200 if (ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext))
19201 rs = neon_select_shape (NS_QQ, NS_NULL);
19203 rs = neon_select_shape (NS_DD, NS_QQ, NS_NULL);
19205 NEON_ENCODE (INTEGER, inst);
19206 inst.instruction |= LOW4 (inst.operands[0].reg) << 12;
19207 inst.instruction |= HI1 (inst.operands[0].reg) << 22;
19208 inst.instruction |= LOW4 (inst.operands[1].reg);
19209 inst.instruction |= HI1 (inst.operands[1].reg) << 5;
19210 inst.instruction |= neon_quad (rs) << 6;
19214 NEON_ENCODE (IMMED, inst);
19215 neon_move_immediate ();
19218 neon_dp_fixup (&inst);
19220 if (ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext))
19222 constraint (!inst.operands[1].isreg && !inst.operands[0].isquad, BAD_FPU);
19223 constraint ((inst.instruction & 0xd00) == 0xd00,
19224 _("immediate value out of range"));
19228 /* Encode instructions of form:
19230 |28/24|23|22|21 20|19 16|15 12|11 8|7|6|5|4|3 0|
19231 | U |x |D |size | Rn | Rd |x x x x|N|x|M|x| Rm | */
19234 neon_mixed_length (struct neon_type_el et, unsigned size)
19236 inst.instruction |= LOW4 (inst.operands[0].reg) << 12;
19237 inst.instruction |= HI1 (inst.operands[0].reg) << 22;
19238 inst.instruction |= LOW4 (inst.operands[1].reg) << 16;
19239 inst.instruction |= HI1 (inst.operands[1].reg) << 7;
19240 inst.instruction |= LOW4 (inst.operands[2].reg);
19241 inst.instruction |= HI1 (inst.operands[2].reg) << 5;
19242 inst.instruction |= (et.type == NT_unsigned) << 24;
19243 inst.instruction |= neon_logbits (size) << 20;
19245 neon_dp_fixup (&inst);
19249 do_neon_dyadic_long (void)
19251 enum neon_shape rs = neon_select_shape (NS_QDD, NS_QQQ, NS_QQR, NS_NULL);
19254 if (vfp_or_neon_is_neon (NEON_CHECK_ARCH | NEON_CHECK_CC) == FAIL)
19257 NEON_ENCODE (INTEGER, inst);
19258 /* FIXME: Type checking for lengthening op. */
19259 struct neon_type_el et = neon_check_type (3, NS_QDD,
19260 N_EQK | N_DBL, N_EQK, N_SU_32 | N_KEY);
19261 neon_mixed_length (et, et.size);
19263 else if (ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext)
19264 && (inst.cond == 0xf || inst.cond == 0x10))
19266 /* If parsing for MVE, vaddl/vsubl/vabdl{e,t} can only be vadd/vsub/vabd
19267 in an IT block with le/lt conditions. */
19269 if (inst.cond == 0xf)
19271 else if (inst.cond == 0x10)
19274 inst.pred_insn_type = INSIDE_IT_INSN;
19276 if (inst.instruction == N_MNEM_vaddl)
19278 inst.instruction = N_MNEM_vadd;
19279 do_neon_addsub_if_i ();
19281 else if (inst.instruction == N_MNEM_vsubl)
19283 inst.instruction = N_MNEM_vsub;
19284 do_neon_addsub_if_i ();
19286 else if (inst.instruction == N_MNEM_vabdl)
19288 inst.instruction = N_MNEM_vabd;
19289 do_neon_dyadic_if_su ();
19293 first_error (BAD_FPU);
19297 do_neon_abal (void)
19299 struct neon_type_el et = neon_check_type (3, NS_QDD,
19300 N_EQK | N_INT | N_DBL, N_EQK, N_SU_32 | N_KEY);
19301 neon_mixed_length (et, et.size);
19305 neon_mac_reg_scalar_long (unsigned regtypes, unsigned scalartypes)
19307 if (inst.operands[2].isscalar)
19309 struct neon_type_el et = neon_check_type (3, NS_QDS,
19310 N_EQK | N_DBL, N_EQK, regtypes | N_KEY);
19311 NEON_ENCODE (SCALAR, inst);
19312 neon_mul_mac (et, et.type == NT_unsigned);
19316 struct neon_type_el et = neon_check_type (3, NS_QDD,
19317 N_EQK | N_DBL, N_EQK, scalartypes | N_KEY);
19318 NEON_ENCODE (INTEGER, inst);
19319 neon_mixed_length (et, et.size);
19324 do_neon_mac_maybe_scalar_long (void)
19326 neon_mac_reg_scalar_long (N_S16 | N_S32 | N_U16 | N_U32, N_SU_32);
19329 /* Like neon_scalar_for_mul, this function generate Rm encoding from GAS's
19330 internal SCALAR. QUAD_P is 1 if it's for Q format, otherwise it's 0. */
19333 neon_scalar_for_fmac_fp16_long (unsigned scalar, unsigned quad_p)
19335 unsigned regno = NEON_SCALAR_REG (scalar);
19336 unsigned elno = NEON_SCALAR_INDEX (scalar);
19340 if (regno > 7 || elno > 3)
19343 return ((regno & 0x7)
19344 | ((elno & 0x1) << 3)
19345 | (((elno >> 1) & 0x1) << 5));
19349 if (regno > 15 || elno > 1)
19352 return (((regno & 0x1) << 5)
19353 | ((regno >> 1) & 0x7)
19354 | ((elno & 0x1) << 3));
19358 first_error (_("scalar out of range for multiply instruction"));
19363 do_neon_fmac_maybe_scalar_long (int subtype)
19365 enum neon_shape rs;
19367 /* NOTE: vfmal/vfmsl use slightly different NEON three-same encoding. 'size"
19368 field (bits[21:20]) has different meaning. For scalar index variant, it's
19369 used to differentiate add and subtract, otherwise it's with fixed value
19373 if (inst.cond != COND_ALWAYS)
19374 as_warn (_("vfmal/vfmsl with FP16 type cannot be conditional, the "
19375 "behaviour is UNPREDICTABLE"));
19377 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_fp16_fml),
19380 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, fpu_neon_ext_armv8),
19383 /* vfmal/vfmsl are in three-same D/Q register format or the third operand can
19384 be a scalar index register. */
19385 if (inst.operands[2].isscalar)
19387 high8 = 0xfe000000;
19390 rs = neon_select_shape (NS_DHS, NS_QDS, NS_NULL);
19394 high8 = 0xfc000000;
19397 inst.instruction |= (0x1 << 23);
19398 rs = neon_select_shape (NS_DHH, NS_QDD, NS_NULL);
19401 neon_check_type (3, rs, N_EQK, N_EQK, N_KEY | N_F16);
19403 /* "opcode" from template has included "ubit", so simply pass 0 here. Also,
19404 the "S" bit in size field has been reused to differentiate vfmal and vfmsl,
19405 so we simply pass -1 as size. */
19406 unsigned quad_p = (rs == NS_QDD || rs == NS_QDS);
19407 neon_three_same (quad_p, 0, size);
19409 /* Undo neon_dp_fixup. Redo the high eight bits. */
19410 inst.instruction &= 0x00ffffff;
19411 inst.instruction |= high8;
19413 #define LOW1(R) ((R) & 0x1)
19414 #define HI4(R) (((R) >> 1) & 0xf)
19415 /* Unlike usually NEON three-same, encoding for Vn and Vm will depend on
19416 whether the instruction is in Q form and whether Vm is a scalar indexed
19418 if (inst.operands[2].isscalar)
19421 = neon_scalar_for_fmac_fp16_long (inst.operands[2].reg, quad_p);
19422 inst.instruction &= 0xffffffd0;
19423 inst.instruction |= rm;
19427 /* Redo Rn as well. */
19428 inst.instruction &= 0xfff0ff7f;
19429 inst.instruction |= HI4 (inst.operands[1].reg) << 16;
19430 inst.instruction |= LOW1 (inst.operands[1].reg) << 7;
19435 /* Redo Rn and Rm. */
19436 inst.instruction &= 0xfff0ff50;
19437 inst.instruction |= HI4 (inst.operands[1].reg) << 16;
19438 inst.instruction |= LOW1 (inst.operands[1].reg) << 7;
19439 inst.instruction |= HI4 (inst.operands[2].reg);
19440 inst.instruction |= LOW1 (inst.operands[2].reg) << 5;
19445 do_neon_vfmal (void)
19447 return do_neon_fmac_maybe_scalar_long (0);
19451 do_neon_vfmsl (void)
19453 return do_neon_fmac_maybe_scalar_long (1);
19457 do_neon_dyadic_wide (void)
19459 struct neon_type_el et = neon_check_type (3, NS_QQD,
19460 N_EQK | N_DBL, N_EQK | N_DBL, N_SU_32 | N_KEY);
19461 neon_mixed_length (et, et.size);
19465 do_neon_dyadic_narrow (void)
19467 struct neon_type_el et = neon_check_type (3, NS_QDD,
19468 N_EQK | N_DBL, N_EQK, N_I16 | N_I32 | N_I64 | N_KEY);
19469 /* Operand sign is unimportant, and the U bit is part of the opcode,
19470 so force the operand type to integer. */
19471 et.type = NT_integer;
19472 neon_mixed_length (et, et.size / 2);
19476 do_neon_mul_sat_scalar_long (void)
19478 neon_mac_reg_scalar_long (N_S16 | N_S32, N_S16 | N_S32);
19482 do_neon_vmull (void)
19484 if (inst.operands[2].isscalar)
19485 do_neon_mac_maybe_scalar_long ();
19488 struct neon_type_el et = neon_check_type (3, NS_QDD,
19489 N_EQK | N_DBL, N_EQK, N_SU_32 | N_P8 | N_P64 | N_KEY);
19491 if (et.type == NT_poly)
19492 NEON_ENCODE (POLY, inst);
19494 NEON_ENCODE (INTEGER, inst);
19496 /* For polynomial encoding the U bit must be zero, and the size must
19497 be 8 (encoded as 0b00) or, on ARMv8 or later 64 (encoded, non
19498 obviously, as 0b10). */
19501 /* Check we're on the correct architecture. */
19502 if (!mark_feature_used (&fpu_crypto_ext_armv8))
19504 _("Instruction form not available on this architecture.");
19509 neon_mixed_length (et, et.size);
19516 enum neon_shape rs = neon_select_shape (NS_DDDI, NS_QQQI, NS_NULL);
19517 struct neon_type_el et = neon_check_type (3, rs,
19518 N_EQK, N_EQK, N_8 | N_16 | N_32 | N_64 | N_KEY);
19519 unsigned imm = (inst.operands[3].imm * et.size) / 8;
19521 constraint (imm >= (unsigned) (neon_quad (rs) ? 16 : 8),
19522 _("shift out of range"));
19523 inst.instruction |= LOW4 (inst.operands[0].reg) << 12;
19524 inst.instruction |= HI1 (inst.operands[0].reg) << 22;
19525 inst.instruction |= LOW4 (inst.operands[1].reg) << 16;
19526 inst.instruction |= HI1 (inst.operands[1].reg) << 7;
19527 inst.instruction |= LOW4 (inst.operands[2].reg);
19528 inst.instruction |= HI1 (inst.operands[2].reg) << 5;
19529 inst.instruction |= neon_quad (rs) << 6;
19530 inst.instruction |= imm << 8;
19532 neon_dp_fixup (&inst);
19538 if (!check_simd_pred_availability (FALSE, NEON_CHECK_ARCH | NEON_CHECK_CC))
19541 enum neon_shape rs;
19542 if (ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext))
19543 rs = neon_select_shape (NS_QQ, NS_NULL);
19545 rs = neon_select_shape (NS_DD, NS_QQ, NS_NULL);
19547 struct neon_type_el et = neon_check_type (2, rs,
19548 N_EQK, N_8 | N_16 | N_32 | N_KEY);
19550 unsigned op = (inst.instruction >> 7) & 3;
19551 /* N (width of reversed regions) is encoded as part of the bitmask. We
19552 extract it here to check the elements to be reversed are smaller.
19553 Otherwise we'd get a reserved instruction. */
19554 unsigned elsize = (op == 2) ? 16 : (op == 1) ? 32 : (op == 0) ? 64 : 0;
19556 if (ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext) && elsize == 64
19557 && inst.operands[0].reg == inst.operands[1].reg)
19558 as_tsktsk (_("Warning: 64-bit element size and same destination and source"
19559 " operands makes instruction UNPREDICTABLE"));
19561 gas_assert (elsize != 0);
19562 constraint (et.size >= elsize,
19563 _("elements must be smaller than reversal region"));
19564 neon_two_same (neon_quad (rs), 1, et.size);
19570 if (inst.operands[1].isscalar)
19572 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, fpu_neon_ext_v1),
19574 enum neon_shape rs = neon_select_shape (NS_DS, NS_QS, NS_NULL);
19575 struct neon_type_el et = neon_check_type (2, rs,
19576 N_EQK, N_8 | N_16 | N_32 | N_KEY);
19577 unsigned sizebits = et.size >> 3;
19578 unsigned dm = NEON_SCALAR_REG (inst.operands[1].reg);
19579 int logsize = neon_logbits (et.size);
19580 unsigned x = NEON_SCALAR_INDEX (inst.operands[1].reg) << logsize;
19582 if (vfp_or_neon_is_neon (NEON_CHECK_CC) == FAIL)
19585 NEON_ENCODE (SCALAR, inst);
19586 inst.instruction |= LOW4 (inst.operands[0].reg) << 12;
19587 inst.instruction |= HI1 (inst.operands[0].reg) << 22;
19588 inst.instruction |= LOW4 (dm);
19589 inst.instruction |= HI1 (dm) << 5;
19590 inst.instruction |= neon_quad (rs) << 6;
19591 inst.instruction |= x << 17;
19592 inst.instruction |= sizebits << 16;
19594 neon_dp_fixup (&inst);
19598 enum neon_shape rs = neon_select_shape (NS_DR, NS_QR, NS_NULL);
19599 struct neon_type_el et = neon_check_type (2, rs,
19600 N_8 | N_16 | N_32 | N_KEY, N_EQK);
19603 if (!check_simd_pred_availability (FALSE, NEON_CHECK_ARCH))
19607 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, fpu_neon_ext_v1),
19610 if (ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext))
19612 if (inst.operands[1].reg == REG_SP)
19613 as_tsktsk (MVE_BAD_SP);
19614 else if (inst.operands[1].reg == REG_PC)
19615 as_tsktsk (MVE_BAD_PC);
19618 /* Duplicate ARM register to lanes of vector. */
19619 NEON_ENCODE (ARMREG, inst);
19622 case 8: inst.instruction |= 0x400000; break;
19623 case 16: inst.instruction |= 0x000020; break;
19624 case 32: inst.instruction |= 0x000000; break;
19627 inst.instruction |= LOW4 (inst.operands[1].reg) << 12;
19628 inst.instruction |= LOW4 (inst.operands[0].reg) << 16;
19629 inst.instruction |= HI1 (inst.operands[0].reg) << 7;
19630 inst.instruction |= neon_quad (rs) << 21;
19631 /* The encoding for this instruction is identical for the ARM and Thumb
19632 variants, except for the condition field. */
19633 do_vfp_cond_or_thumb ();
19638 do_mve_mov (int toQ)
19640 if (!ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext))
19642 if (inst.cond > COND_ALWAYS)
19643 inst.pred_insn_type = MVE_UNPREDICABLE_INSN;
19645 unsigned Rt = 0, Rt2 = 1, Q0 = 2, Q1 = 3;
19654 constraint (inst.operands[Q0].reg != inst.operands[Q1].reg + 2,
19655 _("Index one must be [2,3] and index two must be two less than"
19657 constraint (inst.operands[Rt].reg == inst.operands[Rt2].reg,
19658 _("General purpose registers may not be the same"));
19659 constraint (inst.operands[Rt].reg == REG_SP
19660 || inst.operands[Rt2].reg == REG_SP,
19662 constraint (inst.operands[Rt].reg == REG_PC
19663 || inst.operands[Rt2].reg == REG_PC,
19666 inst.instruction = 0xec000f00;
19667 inst.instruction |= HI1 (inst.operands[Q1].reg / 32) << 23;
19668 inst.instruction |= !!toQ << 20;
19669 inst.instruction |= inst.operands[Rt2].reg << 16;
19670 inst.instruction |= LOW4 (inst.operands[Q1].reg / 32) << 13;
19671 inst.instruction |= (inst.operands[Q1].reg % 4) << 4;
19672 inst.instruction |= inst.operands[Rt].reg;
19678 if (!ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext))
19681 if (inst.cond > COND_ALWAYS)
19682 inst.pred_insn_type = INSIDE_VPT_INSN;
19684 inst.pred_insn_type = MVE_OUTSIDE_PRED_INSN;
19686 struct neon_type_el et = neon_check_type (2, NS_QQ, N_EQK, N_I16 | N_I32
19689 inst.instruction |= HI1 (inst.operands[0].reg) << 22;
19690 inst.instruction |= (neon_logbits (et.size) - 1) << 18;
19691 inst.instruction |= LOW4 (inst.operands[0].reg) << 12;
19692 inst.instruction |= HI1 (inst.operands[1].reg) << 5;
19693 inst.instruction |= LOW4 (inst.operands[1].reg);
19698 /* VMOV has particularly many variations. It can be one of:
19699 0. VMOV<c><q> <Qd>, <Qm>
19700 1. VMOV<c><q> <Dd>, <Dm>
19701 (Register operations, which are VORR with Rm = Rn.)
19702 2. VMOV<c><q>.<dt> <Qd>, #<imm>
19703 3. VMOV<c><q>.<dt> <Dd>, #<imm>
19705 4. VMOV<c><q>.<size> <Dn[x]>, <Rd>
19706 (ARM register to scalar.)
19707 5. VMOV<c><q> <Dm>, <Rd>, <Rn>
19708 (Two ARM registers to vector.)
19709 6. VMOV<c><q>.<dt> <Rd>, <Dn[x]>
19710 (Scalar to ARM register.)
19711 7. VMOV<c><q> <Rd>, <Rn>, <Dm>
19712 (Vector to two ARM registers.)
19713 8. VMOV.F32 <Sd>, <Sm>
19714 9. VMOV.F64 <Dd>, <Dm>
19715 (VFP register moves.)
19716 10. VMOV.F32 <Sd>, #imm
19717 11. VMOV.F64 <Dd>, #imm
19718 (VFP float immediate load.)
19719 12. VMOV <Rd>, <Sm>
19720 (VFP single to ARM reg.)
19721 13. VMOV <Sd>, <Rm>
19722 (ARM reg to VFP single.)
19723 14. VMOV <Rd>, <Re>, <Sn>, <Sm>
19724 (Two ARM regs to two VFP singles.)
19725 15. VMOV <Sd>, <Se>, <Rn>, <Rm>
19726 (Two VFP singles to two ARM regs.)
19727 16. VMOV<c> <Rt>, <Rt2>, <Qd[idx]>, <Qd[idx2]>
19728 17. VMOV<c> <Qd[idx]>, <Qd[idx2]>, <Rt>, <Rt2>
19729 18. VMOV<c>.<dt> <Rt>, <Qn[idx]>
19730 19. VMOV<c>.<dt> <Qd[idx]>, <Rt>
19732 These cases can be disambiguated using neon_select_shape, except cases 1/9
19733 and 3/11 which depend on the operand type too.
19735 All the encoded bits are hardcoded by this function.
19737 Cases 4, 6 may be used with VFPv1 and above (only 32-bit transfers!).
19738 Cases 5, 7 may be used with VFPv2 and above.
19740 FIXME: Some of the checking may be a bit sloppy (in a couple of cases you
19741 can specify a type where it doesn't make sense to, and is ignored). */
19746 enum neon_shape rs = neon_select_shape (NS_RRSS, NS_SSRR, NS_RRFF, NS_FFRR,
19747 NS_DRR, NS_RRD, NS_QQ, NS_DD, NS_QI,
19748 NS_DI, NS_SR, NS_RS, NS_FF, NS_FI,
19749 NS_RF, NS_FR, NS_HR, NS_RH, NS_HI,
19751 struct neon_type_el et;
19752 const char *ldconst = 0;
19756 case NS_DD: /* case 1/9. */
19757 et = neon_check_type (2, rs, N_EQK, N_F64 | N_KEY);
19758 /* It is not an error here if no type is given. */
19760 if (et.type == NT_float && et.size == 64)
19762 do_vfp_nsyn_opcode ("fcpyd");
19765 /* fall through. */
19767 case NS_QQ: /* case 0/1. */
19769 if (!check_simd_pred_availability (FALSE,
19770 NEON_CHECK_CC | NEON_CHECK_ARCH))
19772 /* The architecture manual I have doesn't explicitly state which
19773 value the U bit should have for register->register moves, but
19774 the equivalent VORR instruction has U = 0, so do that. */
19775 inst.instruction = 0x0200110;
19776 inst.instruction |= LOW4 (inst.operands[0].reg) << 12;
19777 inst.instruction |= HI1 (inst.operands[0].reg) << 22;
19778 inst.instruction |= LOW4 (inst.operands[1].reg);
19779 inst.instruction |= HI1 (inst.operands[1].reg) << 5;
19780 inst.instruction |= LOW4 (inst.operands[1].reg) << 16;
19781 inst.instruction |= HI1 (inst.operands[1].reg) << 7;
19782 inst.instruction |= neon_quad (rs) << 6;
19784 neon_dp_fixup (&inst);
19788 case NS_DI: /* case 3/11. */
19789 et = neon_check_type (2, rs, N_EQK, N_F64 | N_KEY);
19791 if (et.type == NT_float && et.size == 64)
19793 /* case 11 (fconstd). */
19794 ldconst = "fconstd";
19795 goto encode_fconstd;
19797 /* fall through. */
19799 case NS_QI: /* case 2/3. */
19800 if (!check_simd_pred_availability (FALSE,
19801 NEON_CHECK_CC | NEON_CHECK_ARCH))
19803 inst.instruction = 0x0800010;
19804 neon_move_immediate ();
19805 neon_dp_fixup (&inst);
19808 case NS_SR: /* case 4. */
19810 unsigned bcdebits = 0;
19812 unsigned dn = NEON_SCALAR_REG (inst.operands[0].reg);
19813 unsigned x = NEON_SCALAR_INDEX (inst.operands[0].reg);
19815 /* .<size> is optional here, defaulting to .32. */
19816 if (inst.vectype.elems == 0
19817 && inst.operands[0].vectype.type == NT_invtype
19818 && inst.operands[1].vectype.type == NT_invtype)
19820 inst.vectype.el[0].type = NT_untyped;
19821 inst.vectype.el[0].size = 32;
19822 inst.vectype.elems = 1;
19825 et = neon_check_type (2, NS_NULL, N_8 | N_16 | N_32 | N_KEY, N_EQK);
19826 logsize = neon_logbits (et.size);
19830 if (!ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext)
19831 && vfp_or_neon_is_neon (NEON_CHECK_ARCH) == FAIL)
19836 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, fpu_vfp_ext_v1)
19837 && !ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext),
19841 if (ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext))
19843 if (inst.operands[1].reg == REG_SP)
19844 as_tsktsk (MVE_BAD_SP);
19845 else if (inst.operands[1].reg == REG_PC)
19846 as_tsktsk (MVE_BAD_PC);
19848 unsigned size = inst.operands[0].isscalar == 1 ? 64 : 128;
19850 constraint (et.type == NT_invtype, _("bad type for scalar"));
19851 constraint (x >= size / et.size, _("scalar index out of range"));
19856 case 8: bcdebits = 0x8; break;
19857 case 16: bcdebits = 0x1; break;
19858 case 32: bcdebits = 0x0; break;
19862 bcdebits |= (x & ((1 << (3-logsize)) - 1)) << logsize;
19864 inst.instruction = 0xe000b10;
19865 do_vfp_cond_or_thumb ();
19866 inst.instruction |= LOW4 (dn) << 16;
19867 inst.instruction |= HI1 (dn) << 7;
19868 inst.instruction |= inst.operands[1].reg << 12;
19869 inst.instruction |= (bcdebits & 3) << 5;
19870 inst.instruction |= ((bcdebits >> 2) & 3) << 21;
19871 inst.instruction |= (x >> (3-logsize)) << 16;
19875 case NS_DRR: /* case 5 (fmdrr). */
19876 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, fpu_vfp_ext_v2)
19877 && !ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext),
19880 inst.instruction = 0xc400b10;
19881 do_vfp_cond_or_thumb ();
19882 inst.instruction |= LOW4 (inst.operands[0].reg);
19883 inst.instruction |= HI1 (inst.operands[0].reg) << 5;
19884 inst.instruction |= inst.operands[1].reg << 12;
19885 inst.instruction |= inst.operands[2].reg << 16;
19888 case NS_RS: /* case 6. */
19891 unsigned dn = NEON_SCALAR_REG (inst.operands[1].reg);
19892 unsigned x = NEON_SCALAR_INDEX (inst.operands[1].reg);
19893 unsigned abcdebits = 0;
19895 /* .<dt> is optional here, defaulting to .32. */
19896 if (inst.vectype.elems == 0
19897 && inst.operands[0].vectype.type == NT_invtype
19898 && inst.operands[1].vectype.type == NT_invtype)
19900 inst.vectype.el[0].type = NT_untyped;
19901 inst.vectype.el[0].size = 32;
19902 inst.vectype.elems = 1;
19905 et = neon_check_type (2, NS_NULL,
19906 N_EQK, N_S8 | N_S16 | N_U8 | N_U16 | N_32 | N_KEY);
19907 logsize = neon_logbits (et.size);
19911 if (!ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext)
19912 && vfp_or_neon_is_neon (NEON_CHECK_CC
19913 | NEON_CHECK_ARCH) == FAIL)
19918 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, fpu_vfp_ext_v1)
19919 && !ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext),
19923 if (ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext))
19925 if (inst.operands[0].reg == REG_SP)
19926 as_tsktsk (MVE_BAD_SP);
19927 else if (inst.operands[0].reg == REG_PC)
19928 as_tsktsk (MVE_BAD_PC);
19931 unsigned size = inst.operands[1].isscalar == 1 ? 64 : 128;
19933 constraint (et.type == NT_invtype, _("bad type for scalar"));
19934 constraint (x >= size / et.size, _("scalar index out of range"));
19938 case 8: abcdebits = (et.type == NT_signed) ? 0x08 : 0x18; break;
19939 case 16: abcdebits = (et.type == NT_signed) ? 0x01 : 0x11; break;
19940 case 32: abcdebits = 0x00; break;
19944 abcdebits |= (x & ((1 << (3-logsize)) - 1)) << logsize;
19945 inst.instruction = 0xe100b10;
19946 do_vfp_cond_or_thumb ();
19947 inst.instruction |= LOW4 (dn) << 16;
19948 inst.instruction |= HI1 (dn) << 7;
19949 inst.instruction |= inst.operands[0].reg << 12;
19950 inst.instruction |= (abcdebits & 3) << 5;
19951 inst.instruction |= (abcdebits >> 2) << 21;
19952 inst.instruction |= (x >> (3-logsize)) << 16;
19956 case NS_RRD: /* case 7 (fmrrd). */
19957 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, fpu_vfp_ext_v2)
19958 && !ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext),
19961 inst.instruction = 0xc500b10;
19962 do_vfp_cond_or_thumb ();
19963 inst.instruction |= inst.operands[0].reg << 12;
19964 inst.instruction |= inst.operands[1].reg << 16;
19965 inst.instruction |= LOW4 (inst.operands[2].reg);
19966 inst.instruction |= HI1 (inst.operands[2].reg) << 5;
19969 case NS_FF: /* case 8 (fcpys). */
19970 do_vfp_nsyn_opcode ("fcpys");
19974 case NS_FI: /* case 10 (fconsts). */
19975 ldconst = "fconsts";
19977 if (!inst.operands[1].immisfloat)
19980 /* Immediate has to fit in 8 bits so float is enough. */
19981 float imm = (float) inst.operands[1].imm;
19982 memcpy (&new_imm, &imm, sizeof (float));
19983 /* But the assembly may have been written to provide an integer
19984 bit pattern that equates to a float, so check that the
19985 conversion has worked. */
19986 if (is_quarter_float (new_imm))
19988 if (is_quarter_float (inst.operands[1].imm))
19989 as_warn (_("immediate constant is valid both as a bit-pattern and a floating point value (using the fp value)"));
19991 inst.operands[1].imm = new_imm;
19992 inst.operands[1].immisfloat = 1;
19996 if (is_quarter_float (inst.operands[1].imm))
19998 inst.operands[1].imm = neon_qfloat_bits (inst.operands[1].imm);
19999 do_vfp_nsyn_opcode (ldconst);
20001 /* ARMv8.2 fp16 vmov.f16 instruction. */
20003 do_scalar_fp16_v82_encode ();
20006 first_error (_("immediate out of range"));
20010 case NS_RF: /* case 12 (fmrs). */
20011 do_vfp_nsyn_opcode ("fmrs");
20012 /* ARMv8.2 fp16 vmov.f16 instruction. */
20014 do_scalar_fp16_v82_encode ();
20018 case NS_FR: /* case 13 (fmsr). */
20019 do_vfp_nsyn_opcode ("fmsr");
20020 /* ARMv8.2 fp16 vmov.f16 instruction. */
20022 do_scalar_fp16_v82_encode ();
20032 /* The encoders for the fmrrs and fmsrr instructions expect three operands
20033 (one of which is a list), but we have parsed four. Do some fiddling to
20034 make the operands what do_vfp_reg2_from_sp2 and do_vfp_sp2_from_reg2
20036 case NS_RRFF: /* case 14 (fmrrs). */
20037 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, fpu_vfp_ext_v2)
20038 && !ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext),
20040 constraint (inst.operands[3].reg != inst.operands[2].reg + 1,
20041 _("VFP registers must be adjacent"));
20042 inst.operands[2].imm = 2;
20043 memset (&inst.operands[3], '\0', sizeof (inst.operands[3]));
20044 do_vfp_nsyn_opcode ("fmrrs");
20047 case NS_FFRR: /* case 15 (fmsrr). */
20048 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, fpu_vfp_ext_v2)
20049 && !ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext),
20051 constraint (inst.operands[1].reg != inst.operands[0].reg + 1,
20052 _("VFP registers must be adjacent"));
20053 inst.operands[1] = inst.operands[2];
20054 inst.operands[2] = inst.operands[3];
20055 inst.operands[0].imm = 2;
20056 memset (&inst.operands[3], '\0', sizeof (inst.operands[3]));
20057 do_vfp_nsyn_opcode ("fmsrr");
20061 /* neon_select_shape has determined that the instruction
20062 shape is wrong and has already set the error message. */
20073 if (!(inst.operands[0].present && inst.operands[0].isquad
20074 && inst.operands[1].present && inst.operands[1].isquad
20075 && !inst.operands[2].present))
20077 inst.instruction = 0;
20080 set_pred_insn_type (INSIDE_IT_INSN);
20085 if (!ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext))
20088 if (inst.cond != COND_ALWAYS)
20089 inst.pred_insn_type = INSIDE_VPT_INSN;
20091 struct neon_type_el et = neon_check_type (2, NS_QQ, N_EQK, N_S8 | N_U8
20092 | N_S16 | N_U16 | N_KEY);
20094 inst.instruction |= (et.type == NT_unsigned) << 28;
20095 inst.instruction |= HI1 (inst.operands[0].reg) << 22;
20096 inst.instruction |= (neon_logbits (et.size) + 1) << 19;
20097 inst.instruction |= LOW4 (inst.operands[0].reg) << 12;
20098 inst.instruction |= HI1 (inst.operands[1].reg) << 5;
20099 inst.instruction |= LOW4 (inst.operands[1].reg);
20104 do_neon_rshift_round_imm (void)
20106 if (!check_simd_pred_availability (FALSE, NEON_CHECK_ARCH | NEON_CHECK_CC))
20109 enum neon_shape rs;
20110 struct neon_type_el et;
20112 if (ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext))
20114 rs = neon_select_shape (NS_QQI, NS_NULL);
20115 et = neon_check_type (2, rs, N_EQK, N_SU_MVE | N_KEY);
20119 rs = neon_select_shape (NS_DDI, NS_QQI, NS_NULL);
20120 et = neon_check_type (2, rs, N_EQK, N_SU_ALL | N_KEY);
20122 int imm = inst.operands[2].imm;
20124 /* imm == 0 case is encoded as VMOV for V{R}SHR. */
20127 inst.operands[2].present = 0;
20132 constraint (imm < 1 || (unsigned)imm > et.size,
20133 _("immediate out of range for shift"));
20134 neon_imm_shift (TRUE, et.type == NT_unsigned, neon_quad (rs), et,
20139 do_neon_movhf (void)
20141 enum neon_shape rs = neon_select_shape (NS_HH, NS_NULL);
20142 constraint (rs != NS_HH, _("invalid suffix"));
20144 if (inst.cond != COND_ALWAYS)
20148 as_warn (_("ARMv8.2 scalar fp16 instruction cannot be conditional,"
20149 " the behaviour is UNPREDICTABLE"));
20153 inst.error = BAD_COND;
20158 do_vfp_sp_monadic ();
20161 inst.instruction |= 0xf0000000;
20165 do_neon_movl (void)
20167 struct neon_type_el et = neon_check_type (2, NS_QD,
20168 N_EQK | N_DBL, N_SU_32 | N_KEY);
20169 unsigned sizebits = et.size >> 3;
20170 inst.instruction |= sizebits << 19;
20171 neon_two_same (0, et.type == NT_unsigned, -1);
20177 enum neon_shape rs = neon_select_shape (NS_DD, NS_QQ, NS_NULL);
20178 struct neon_type_el et = neon_check_type (2, rs,
20179 N_EQK, N_8 | N_16 | N_32 | N_KEY);
20180 NEON_ENCODE (INTEGER, inst);
20181 neon_two_same (neon_quad (rs), 1, et.size);
20185 do_neon_zip_uzp (void)
20187 enum neon_shape rs = neon_select_shape (NS_DD, NS_QQ, NS_NULL);
20188 struct neon_type_el et = neon_check_type (2, rs,
20189 N_EQK, N_8 | N_16 | N_32 | N_KEY);
20190 if (rs == NS_DD && et.size == 32)
20192 /* Special case: encode as VTRN.32 <Dd>, <Dm>. */
20193 inst.instruction = N_MNEM_vtrn;
20197 neon_two_same (neon_quad (rs), 1, et.size);
20201 do_neon_sat_abs_neg (void)
20203 if (!check_simd_pred_availability (FALSE, NEON_CHECK_CC | NEON_CHECK_ARCH))
20206 enum neon_shape rs;
20207 if (ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext))
20208 rs = neon_select_shape (NS_QQ, NS_NULL);
20210 rs = neon_select_shape (NS_DD, NS_QQ, NS_NULL);
20211 struct neon_type_el et = neon_check_type (2, rs,
20212 N_EQK, N_S8 | N_S16 | N_S32 | N_KEY);
20213 neon_two_same (neon_quad (rs), 1, et.size);
20217 do_neon_pair_long (void)
20219 enum neon_shape rs = neon_select_shape (NS_DD, NS_QQ, NS_NULL);
20220 struct neon_type_el et = neon_check_type (2, rs, N_EQK, N_SU_32 | N_KEY);
20221 /* Unsigned is encoded in OP field (bit 7) for these instruction. */
20222 inst.instruction |= (et.type == NT_unsigned) << 7;
20223 neon_two_same (neon_quad (rs), 1, et.size);
20227 do_neon_recip_est (void)
20229 enum neon_shape rs = neon_select_shape (NS_DD, NS_QQ, NS_NULL);
20230 struct neon_type_el et = neon_check_type (2, rs,
20231 N_EQK | N_FLT, N_F_16_32 | N_U32 | N_KEY);
20232 inst.instruction |= (et.type == NT_float) << 8;
20233 neon_two_same (neon_quad (rs), 1, et.size);
20239 if (!check_simd_pred_availability (FALSE, NEON_CHECK_ARCH | NEON_CHECK_CC))
20242 enum neon_shape rs;
20243 if (ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext))
20244 rs = neon_select_shape (NS_QQ, NS_NULL);
20246 rs = neon_select_shape (NS_DD, NS_QQ, NS_NULL);
20248 struct neon_type_el et = neon_check_type (2, rs,
20249 N_EQK, N_S8 | N_S16 | N_S32 | N_KEY);
20250 neon_two_same (neon_quad (rs), 1, et.size);
20256 if (!check_simd_pred_availability (FALSE, NEON_CHECK_ARCH | NEON_CHECK_CC))
20259 enum neon_shape rs;
20260 if (ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext))
20261 rs = neon_select_shape (NS_QQ, NS_NULL);
20263 rs = neon_select_shape (NS_DD, NS_QQ, NS_NULL);
20265 struct neon_type_el et = neon_check_type (2, rs,
20266 N_EQK, N_I8 | N_I16 | N_I32 | N_KEY);
20267 neon_two_same (neon_quad (rs), 1, et.size);
20273 enum neon_shape rs = neon_select_shape (NS_DD, NS_QQ, NS_NULL);
20274 struct neon_type_el et = neon_check_type (2, rs,
20275 N_EQK | N_INT, N_8 | N_KEY);
20276 neon_two_same (neon_quad (rs), 1, et.size);
20282 enum neon_shape rs = neon_select_shape (NS_DD, NS_QQ, NS_NULL);
20283 neon_two_same (neon_quad (rs), 1, -1);
20287 do_neon_tbl_tbx (void)
20289 unsigned listlenbits;
20290 neon_check_type (3, NS_DLD, N_EQK, N_EQK, N_8 | N_KEY);
20292 if (inst.operands[1].imm < 1 || inst.operands[1].imm > 4)
20294 first_error (_("bad list length for table lookup"));
20298 listlenbits = inst.operands[1].imm - 1;
20299 inst.instruction |= LOW4 (inst.operands[0].reg) << 12;
20300 inst.instruction |= HI1 (inst.operands[0].reg) << 22;
20301 inst.instruction |= LOW4 (inst.operands[1].reg) << 16;
20302 inst.instruction |= HI1 (inst.operands[1].reg) << 7;
20303 inst.instruction |= LOW4 (inst.operands[2].reg);
20304 inst.instruction |= HI1 (inst.operands[2].reg) << 5;
20305 inst.instruction |= listlenbits << 8;
20307 neon_dp_fixup (&inst);
20311 do_neon_ldm_stm (void)
20313 /* P, U and L bits are part of bitmask. */
20314 int is_dbmode = (inst.instruction & (1 << 24)) != 0;
20315 unsigned offsetbits = inst.operands[1].imm * 2;
20317 if (inst.operands[1].issingle)
20319 do_vfp_nsyn_ldm_stm (is_dbmode);
20323 constraint (is_dbmode && !inst.operands[0].writeback,
20324 _("writeback (!) must be used for VLDMDB and VSTMDB"));
20326 constraint (inst.operands[1].imm < 1 || inst.operands[1].imm > 16,
20327 _("register list must contain at least 1 and at most 16 "
20330 inst.instruction |= inst.operands[0].reg << 16;
20331 inst.instruction |= inst.operands[0].writeback << 21;
20332 inst.instruction |= LOW4 (inst.operands[1].reg) << 12;
20333 inst.instruction |= HI1 (inst.operands[1].reg) << 22;
20335 inst.instruction |= offsetbits;
20337 do_vfp_cond_or_thumb ();
20341 do_neon_ldr_str (void)
20343 int is_ldr = (inst.instruction & (1 << 20)) != 0;
20345 /* Use of PC in vstr in ARM mode is deprecated in ARMv7.
20346 And is UNPREDICTABLE in thumb mode. */
20348 && inst.operands[1].reg == REG_PC
20349 && (ARM_CPU_HAS_FEATURE (selected_cpu, arm_ext_v7) || thumb_mode))
20352 inst.error = _("Use of PC here is UNPREDICTABLE");
20353 else if (warn_on_deprecated)
20354 as_tsktsk (_("Use of PC here is deprecated"));
20357 if (inst.operands[0].issingle)
20360 do_vfp_nsyn_opcode ("flds");
20362 do_vfp_nsyn_opcode ("fsts");
20364 /* ARMv8.2 vldr.16/vstr.16 instruction. */
20365 if (inst.vectype.el[0].size == 16)
20366 do_scalar_fp16_v82_encode ();
20371 do_vfp_nsyn_opcode ("fldd");
20373 do_vfp_nsyn_opcode ("fstd");
20378 do_t_vldr_vstr_sysreg (void)
20380 int fp_vldr_bitno = 20, sysreg_vldr_bitno = 20;
20381 bfd_boolean is_vldr = ((inst.instruction & (1 << fp_vldr_bitno)) != 0);
20383 /* Use of PC is UNPREDICTABLE. */
20384 if (inst.operands[1].reg == REG_PC)
20385 inst.error = _("Use of PC here is UNPREDICTABLE");
20387 if (inst.operands[1].immisreg)
20388 inst.error = _("instruction does not accept register index");
20390 if (!inst.operands[1].isreg)
20391 inst.error = _("instruction does not accept PC-relative addressing");
20393 if (abs (inst.operands[1].imm) >= (1 << 7))
20394 inst.error = _("immediate value out of range");
20396 inst.instruction = 0xec000f80;
20398 inst.instruction |= 1 << sysreg_vldr_bitno;
20399 encode_arm_cp_address (1, TRUE, FALSE, BFD_RELOC_ARM_T32_VLDR_VSTR_OFF_IMM);
20400 inst.instruction |= (inst.operands[0].imm & 0x7) << 13;
20401 inst.instruction |= (inst.operands[0].imm & 0x8) << 19;
20405 do_vldr_vstr (void)
20407 bfd_boolean sysreg_op = !inst.operands[0].isreg;
20409 /* VLDR/VSTR (System Register). */
20412 if (!mark_feature_used (&arm_ext_v8_1m_main))
20413 as_bad (_("Instruction not permitted on this architecture"));
20415 do_t_vldr_vstr_sysreg ();
20420 if (!mark_feature_used (&fpu_vfp_ext_v1xd))
20421 as_bad (_("Instruction not permitted on this architecture"));
20422 do_neon_ldr_str ();
20426 /* "interleave" version also handles non-interleaving register VLD1/VST1
20430 do_neon_ld_st_interleave (void)
20432 struct neon_type_el et = neon_check_type (1, NS_NULL,
20433 N_8 | N_16 | N_32 | N_64);
20434 unsigned alignbits = 0;
20436 /* The bits in this table go:
20437 0: register stride of one (0) or two (1)
20438 1,2: register list length, minus one (1, 2, 3, 4).
20439 3,4: <n> in instruction type, minus one (VLD<n> / VST<n>).
20440 We use -1 for invalid entries. */
20441 const int typetable[] =
20443 0x7, -1, 0xa, -1, 0x6, -1, 0x2, -1, /* VLD1 / VST1. */
20444 -1, -1, 0x8, 0x9, -1, -1, 0x3, -1, /* VLD2 / VST2. */
20445 -1, -1, -1, -1, 0x4, 0x5, -1, -1, /* VLD3 / VST3. */
20446 -1, -1, -1, -1, -1, -1, 0x0, 0x1 /* VLD4 / VST4. */
20450 if (et.type == NT_invtype)
20453 if (inst.operands[1].immisalign)
20454 switch (inst.operands[1].imm >> 8)
20456 case 64: alignbits = 1; break;
20458 if (NEON_REGLIST_LENGTH (inst.operands[0].imm) != 2
20459 && NEON_REGLIST_LENGTH (inst.operands[0].imm) != 4)
20460 goto bad_alignment;
20464 if (NEON_REGLIST_LENGTH (inst.operands[0].imm) != 4)
20465 goto bad_alignment;
20470 first_error (_("bad alignment"));
20474 inst.instruction |= alignbits << 4;
20475 inst.instruction |= neon_logbits (et.size) << 6;
20477 /* Bits [4:6] of the immediate in a list specifier encode register stride
20478 (minus 1) in bit 4, and list length in bits [5:6]. We put the <n> of
20479 VLD<n>/VST<n> in bits [9:8] of the initial bitmask. Suck it out here, look
20480 up the right value for "type" in a table based on this value and the given
20481 list style, then stick it back. */
20482 idx = ((inst.operands[0].imm >> 4) & 7)
20483 | (((inst.instruction >> 8) & 3) << 3);
20485 typebits = typetable[idx];
20487 constraint (typebits == -1, _("bad list type for instruction"));
20488 constraint (((inst.instruction >> 8) & 3) && et.size == 64,
20491 inst.instruction &= ~0xf00;
20492 inst.instruction |= typebits << 8;
20495 /* Check alignment is valid for do_neon_ld_st_lane and do_neon_ld_dup.
20496 *DO_ALIGN is set to 1 if the relevant alignment bit should be set, 0
20497 otherwise. The variable arguments are a list of pairs of legal (size, align)
20498 values, terminated with -1. */
20501 neon_alignment_bit (int size, int align, int *do_alignment, ...)
20504 int result = FAIL, thissize, thisalign;
20506 if (!inst.operands[1].immisalign)
20512 va_start (ap, do_alignment);
20516 thissize = va_arg (ap, int);
20517 if (thissize == -1)
20519 thisalign = va_arg (ap, int);
20521 if (size == thissize && align == thisalign)
20524 while (result != SUCCESS);
20528 if (result == SUCCESS)
20531 first_error (_("unsupported alignment for instruction"));
20537 do_neon_ld_st_lane (void)
20539 struct neon_type_el et = neon_check_type (1, NS_NULL, N_8 | N_16 | N_32);
20540 int align_good, do_alignment = 0;
20541 int logsize = neon_logbits (et.size);
20542 int align = inst.operands[1].imm >> 8;
20543 int n = (inst.instruction >> 8) & 3;
20544 int max_el = 64 / et.size;
20546 if (et.type == NT_invtype)
20549 constraint (NEON_REGLIST_LENGTH (inst.operands[0].imm) != n + 1,
20550 _("bad list length"));
20551 constraint (NEON_LANE (inst.operands[0].imm) >= max_el,
20552 _("scalar index out of range"));
20553 constraint (n != 0 && NEON_REG_STRIDE (inst.operands[0].imm) == 2
20555 _("stride of 2 unavailable when element size is 8"));
20559 case 0: /* VLD1 / VST1. */
20560 align_good = neon_alignment_bit (et.size, align, &do_alignment, 16, 16,
20562 if (align_good == FAIL)
20566 unsigned alignbits = 0;
20569 case 16: alignbits = 0x1; break;
20570 case 32: alignbits = 0x3; break;
20573 inst.instruction |= alignbits << 4;
20577 case 1: /* VLD2 / VST2. */
20578 align_good = neon_alignment_bit (et.size, align, &do_alignment, 8, 16,
20579 16, 32, 32, 64, -1);
20580 if (align_good == FAIL)
20583 inst.instruction |= 1 << 4;
20586 case 2: /* VLD3 / VST3. */
20587 constraint (inst.operands[1].immisalign,
20588 _("can't use alignment with this instruction"));
20591 case 3: /* VLD4 / VST4. */
20592 align_good = neon_alignment_bit (et.size, align, &do_alignment, 8, 32,
20593 16, 64, 32, 64, 32, 128, -1);
20594 if (align_good == FAIL)
20598 unsigned alignbits = 0;
20601 case 8: alignbits = 0x1; break;
20602 case 16: alignbits = 0x1; break;
20603 case 32: alignbits = (align == 64) ? 0x1 : 0x2; break;
20606 inst.instruction |= alignbits << 4;
20613 /* Reg stride of 2 is encoded in bit 5 when size==16, bit 6 when size==32. */
20614 if (n != 0 && NEON_REG_STRIDE (inst.operands[0].imm) == 2)
20615 inst.instruction |= 1 << (4 + logsize);
20617 inst.instruction |= NEON_LANE (inst.operands[0].imm) << (logsize + 5);
20618 inst.instruction |= logsize << 10;
20621 /* Encode single n-element structure to all lanes VLD<n> instructions. */
20624 do_neon_ld_dup (void)
20626 struct neon_type_el et = neon_check_type (1, NS_NULL, N_8 | N_16 | N_32);
20627 int align_good, do_alignment = 0;
20629 if (et.type == NT_invtype)
20632 switch ((inst.instruction >> 8) & 3)
20634 case 0: /* VLD1. */
20635 gas_assert (NEON_REG_STRIDE (inst.operands[0].imm) != 2);
20636 align_good = neon_alignment_bit (et.size, inst.operands[1].imm >> 8,
20637 &do_alignment, 16, 16, 32, 32, -1);
20638 if (align_good == FAIL)
20640 switch (NEON_REGLIST_LENGTH (inst.operands[0].imm))
20643 case 2: inst.instruction |= 1 << 5; break;
20644 default: first_error (_("bad list length")); return;
20646 inst.instruction |= neon_logbits (et.size) << 6;
20649 case 1: /* VLD2. */
20650 align_good = neon_alignment_bit (et.size, inst.operands[1].imm >> 8,
20651 &do_alignment, 8, 16, 16, 32, 32, 64,
20653 if (align_good == FAIL)
20655 constraint (NEON_REGLIST_LENGTH (inst.operands[0].imm) != 2,
20656 _("bad list length"));
20657 if (NEON_REG_STRIDE (inst.operands[0].imm) == 2)
20658 inst.instruction |= 1 << 5;
20659 inst.instruction |= neon_logbits (et.size) << 6;
20662 case 2: /* VLD3. */
20663 constraint (inst.operands[1].immisalign,
20664 _("can't use alignment with this instruction"));
20665 constraint (NEON_REGLIST_LENGTH (inst.operands[0].imm) != 3,
20666 _("bad list length"));
20667 if (NEON_REG_STRIDE (inst.operands[0].imm) == 2)
20668 inst.instruction |= 1 << 5;
20669 inst.instruction |= neon_logbits (et.size) << 6;
20672 case 3: /* VLD4. */
20674 int align = inst.operands[1].imm >> 8;
20675 align_good = neon_alignment_bit (et.size, align, &do_alignment, 8, 32,
20676 16, 64, 32, 64, 32, 128, -1);
20677 if (align_good == FAIL)
20679 constraint (NEON_REGLIST_LENGTH (inst.operands[0].imm) != 4,
20680 _("bad list length"));
20681 if (NEON_REG_STRIDE (inst.operands[0].imm) == 2)
20682 inst.instruction |= 1 << 5;
20683 if (et.size == 32 && align == 128)
20684 inst.instruction |= 0x3 << 6;
20686 inst.instruction |= neon_logbits (et.size) << 6;
20693 inst.instruction |= do_alignment << 4;
20696 /* Disambiguate VLD<n> and VST<n> instructions, and fill in common bits (those
20697 apart from bits [11:4]. */
20700 do_neon_ldx_stx (void)
20702 if (inst.operands[1].isreg)
20703 constraint (inst.operands[1].reg == REG_PC, BAD_PC);
20705 switch (NEON_LANE (inst.operands[0].imm))
20707 case NEON_INTERLEAVE_LANES:
20708 NEON_ENCODE (INTERLV, inst);
20709 do_neon_ld_st_interleave ();
20712 case NEON_ALL_LANES:
20713 NEON_ENCODE (DUP, inst);
20714 if (inst.instruction == N_INV)
20716 first_error ("only loads support such operands");
20723 NEON_ENCODE (LANE, inst);
20724 do_neon_ld_st_lane ();
20727 /* L bit comes from bit mask. */
20728 inst.instruction |= LOW4 (inst.operands[0].reg) << 12;
20729 inst.instruction |= HI1 (inst.operands[0].reg) << 22;
20730 inst.instruction |= inst.operands[1].reg << 16;
20732 if (inst.operands[1].postind)
20734 int postreg = inst.operands[1].imm & 0xf;
20735 constraint (!inst.operands[1].immisreg,
20736 _("post-index must be a register"));
20737 constraint (postreg == 0xd || postreg == 0xf,
20738 _("bad register for post-index"));
20739 inst.instruction |= postreg;
20743 constraint (inst.operands[1].immisreg, BAD_ADDR_MODE);
20744 constraint (inst.relocs[0].exp.X_op != O_constant
20745 || inst.relocs[0].exp.X_add_number != 0,
20748 if (inst.operands[1].writeback)
20750 inst.instruction |= 0xd;
20753 inst.instruction |= 0xf;
20757 inst.instruction |= 0xf9000000;
20759 inst.instruction |= 0xf4000000;
20764 do_vfp_nsyn_fpv8 (enum neon_shape rs)
20766 /* Targets like FPv5-SP-D16 don't support FP v8 instructions with
20767 D register operands. */
20768 if (neon_shape_class[rs] == SC_DOUBLE)
20769 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, fpu_vfp_ext_armv8),
20772 NEON_ENCODE (FPV8, inst);
20774 if (rs == NS_FFF || rs == NS_HHH)
20776 do_vfp_sp_dyadic ();
20778 /* ARMv8.2 fp16 instruction. */
20780 do_scalar_fp16_v82_encode ();
20783 do_vfp_dp_rd_rn_rm ();
20786 inst.instruction |= 0x100;
20788 inst.instruction |= 0xf0000000;
20794 set_pred_insn_type (OUTSIDE_PRED_INSN);
20796 if (try_vfp_nsyn (3, do_vfp_nsyn_fpv8) != SUCCESS)
20797 first_error (_("invalid instruction shape"));
20803 if (!ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext))
20804 set_pred_insn_type (OUTSIDE_PRED_INSN);
20806 if (try_vfp_nsyn (3, do_vfp_nsyn_fpv8) == SUCCESS)
20809 if (!check_simd_pred_availability (TRUE, NEON_CHECK_CC | NEON_CHECK_ARCH8))
20812 neon_dyadic_misc (NT_untyped, N_F_16_32, 0);
20816 do_vrint_1 (enum neon_cvt_mode mode)
20818 enum neon_shape rs = neon_select_shape (NS_HH, NS_FF, NS_DD, NS_QQ, NS_NULL);
20819 struct neon_type_el et;
20824 /* Targets like FPv5-SP-D16 don't support FP v8 instructions with
20825 D register operands. */
20826 if (neon_shape_class[rs] == SC_DOUBLE)
20827 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, fpu_vfp_ext_armv8),
20830 et = neon_check_type (2, rs, N_EQK | N_VFP, N_F_ALL | N_KEY
20832 if (et.type != NT_invtype)
20834 /* VFP encodings. */
20835 if (mode == neon_cvt_mode_a || mode == neon_cvt_mode_n
20836 || mode == neon_cvt_mode_p || mode == neon_cvt_mode_m)
20837 set_pred_insn_type (OUTSIDE_PRED_INSN);
20839 NEON_ENCODE (FPV8, inst);
20840 if (rs == NS_FF || rs == NS_HH)
20841 do_vfp_sp_monadic ();
20843 do_vfp_dp_rd_rm ();
20847 case neon_cvt_mode_r: inst.instruction |= 0x00000000; break;
20848 case neon_cvt_mode_z: inst.instruction |= 0x00000080; break;
20849 case neon_cvt_mode_x: inst.instruction |= 0x00010000; break;
20850 case neon_cvt_mode_a: inst.instruction |= 0xf0000000; break;
20851 case neon_cvt_mode_n: inst.instruction |= 0xf0010000; break;
20852 case neon_cvt_mode_p: inst.instruction |= 0xf0020000; break;
20853 case neon_cvt_mode_m: inst.instruction |= 0xf0030000; break;
20857 inst.instruction |= (rs == NS_DD) << 8;
20858 do_vfp_cond_or_thumb ();
20860 /* ARMv8.2 fp16 vrint instruction. */
20862 do_scalar_fp16_v82_encode ();
20866 /* Neon encodings (or something broken...). */
20868 et = neon_check_type (2, rs, N_EQK, N_F_16_32 | N_KEY);
20870 if (et.type == NT_invtype)
20873 if (!check_simd_pred_availability (TRUE,
20874 NEON_CHECK_CC | NEON_CHECK_ARCH8))
20877 NEON_ENCODE (FLOAT, inst);
20879 inst.instruction |= LOW4 (inst.operands[0].reg) << 12;
20880 inst.instruction |= HI1 (inst.operands[0].reg) << 22;
20881 inst.instruction |= LOW4 (inst.operands[1].reg);
20882 inst.instruction |= HI1 (inst.operands[1].reg) << 5;
20883 inst.instruction |= neon_quad (rs) << 6;
20884 /* Mask off the original size bits and reencode them. */
20885 inst.instruction = ((inst.instruction & 0xfff3ffff)
20886 | neon_logbits (et.size) << 18);
20890 case neon_cvt_mode_z: inst.instruction |= 3 << 7; break;
20891 case neon_cvt_mode_x: inst.instruction |= 1 << 7; break;
20892 case neon_cvt_mode_a: inst.instruction |= 2 << 7; break;
20893 case neon_cvt_mode_n: inst.instruction |= 0 << 7; break;
20894 case neon_cvt_mode_p: inst.instruction |= 7 << 7; break;
20895 case neon_cvt_mode_m: inst.instruction |= 5 << 7; break;
20896 case neon_cvt_mode_r: inst.error = _("invalid rounding mode"); break;
20901 inst.instruction |= 0xfc000000;
20903 inst.instruction |= 0xf0000000;
20910 do_vrint_1 (neon_cvt_mode_x);
20916 do_vrint_1 (neon_cvt_mode_z);
20922 do_vrint_1 (neon_cvt_mode_r);
20928 do_vrint_1 (neon_cvt_mode_a);
20934 do_vrint_1 (neon_cvt_mode_n);
20940 do_vrint_1 (neon_cvt_mode_p);
20946 do_vrint_1 (neon_cvt_mode_m);
20950 neon_scalar_for_vcmla (unsigned opnd, unsigned elsize)
20952 unsigned regno = NEON_SCALAR_REG (opnd);
20953 unsigned elno = NEON_SCALAR_INDEX (opnd);
20955 if (elsize == 16 && elno < 2 && regno < 16)
20956 return regno | (elno << 4);
20957 else if (elsize == 32 && elno == 0)
20960 first_error (_("scalar out of range"));
20967 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, mve_fp_ext)
20968 && (!ARM_CPU_HAS_FEATURE (cpu_variant, fpu_neon_ext_armv8)
20969 || !mark_feature_used (&arm_ext_v8_3)), (BAD_FPU));
20970 constraint (inst.relocs[0].exp.X_op != O_constant,
20971 _("expression too complex"));
20972 unsigned rot = inst.relocs[0].exp.X_add_number;
20973 constraint (rot != 0 && rot != 90 && rot != 180 && rot != 270,
20974 _("immediate out of range"));
20977 if (!check_simd_pred_availability (TRUE,
20978 NEON_CHECK_ARCH8 | NEON_CHECK_CC))
20981 if (inst.operands[2].isscalar)
20983 if (ARM_CPU_HAS_FEATURE (cpu_variant, mve_fp_ext))
20984 first_error (_("invalid instruction shape"));
20985 enum neon_shape rs = neon_select_shape (NS_DDSI, NS_QQSI, NS_NULL);
20986 unsigned size = neon_check_type (3, rs, N_EQK, N_EQK,
20987 N_KEY | N_F16 | N_F32).size;
20988 unsigned m = neon_scalar_for_vcmla (inst.operands[2].reg, size);
20990 inst.instruction = 0xfe000800;
20991 inst.instruction |= LOW4 (inst.operands[0].reg) << 12;
20992 inst.instruction |= HI1 (inst.operands[0].reg) << 22;
20993 inst.instruction |= LOW4 (inst.operands[1].reg) << 16;
20994 inst.instruction |= HI1 (inst.operands[1].reg) << 7;
20995 inst.instruction |= LOW4 (m);
20996 inst.instruction |= HI1 (m) << 5;
20997 inst.instruction |= neon_quad (rs) << 6;
20998 inst.instruction |= rot << 20;
20999 inst.instruction |= (size == 32) << 23;
21003 enum neon_shape rs;
21004 if (ARM_CPU_HAS_FEATURE (cpu_variant, mve_fp_ext))
21005 rs = neon_select_shape (NS_QQQI, NS_NULL);
21007 rs = neon_select_shape (NS_DDDI, NS_QQQI, NS_NULL);
21009 unsigned size = neon_check_type (3, rs, N_EQK, N_EQK,
21010 N_KEY | N_F16 | N_F32).size;
21011 if (ARM_CPU_HAS_FEATURE (cpu_variant, mve_fp_ext) && size == 32
21012 && (inst.operands[0].reg == inst.operands[1].reg
21013 || inst.operands[0].reg == inst.operands[2].reg))
21014 as_tsktsk (BAD_MVE_SRCDEST);
21016 neon_three_same (neon_quad (rs), 0, -1);
21017 inst.instruction &= 0x00ffffff; /* Undo neon_dp_fixup. */
21018 inst.instruction |= 0xfc200800;
21019 inst.instruction |= rot << 23;
21020 inst.instruction |= (size == 32) << 20;
21027 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext)
21028 && (!ARM_CPU_HAS_FEATURE (cpu_variant, fpu_neon_ext_armv8)
21029 || !mark_feature_used (&arm_ext_v8_3)), (BAD_FPU));
21030 constraint (inst.relocs[0].exp.X_op != O_constant,
21031 _("expression too complex"));
21033 unsigned rot = inst.relocs[0].exp.X_add_number;
21034 constraint (rot != 90 && rot != 270, _("immediate out of range"));
21035 enum neon_shape rs;
21036 struct neon_type_el et;
21037 if (!ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext))
21039 rs = neon_select_shape (NS_DDDI, NS_QQQI, NS_NULL);
21040 et = neon_check_type (3, rs, N_EQK, N_EQK, N_KEY | N_F16 | N_F32);
21044 rs = neon_select_shape (NS_QQQI, NS_NULL);
21045 et = neon_check_type (3, rs, N_EQK, N_EQK, N_KEY | N_F16 | N_F32 | N_I8
21047 if (et.size == 32 && inst.operands[0].reg == inst.operands[2].reg)
21048 as_tsktsk (_("Warning: 32-bit element size and same first and third "
21049 "operand makes instruction UNPREDICTABLE"));
21052 if (et.type == NT_invtype)
21055 if (!check_simd_pred_availability (et.type == NT_float,
21056 NEON_CHECK_ARCH8 | NEON_CHECK_CC))
21059 if (et.type == NT_float)
21061 neon_three_same (neon_quad (rs), 0, -1);
21062 inst.instruction &= 0x00ffffff; /* Undo neon_dp_fixup. */
21063 inst.instruction |= 0xfc800800;
21064 inst.instruction |= (rot == 270) << 24;
21065 inst.instruction |= (et.size == 32) << 20;
21069 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext), BAD_FPU);
21070 inst.instruction = 0xfe000f00;
21071 inst.instruction |= HI1 (inst.operands[0].reg) << 22;
21072 inst.instruction |= neon_logbits (et.size) << 20;
21073 inst.instruction |= LOW4 (inst.operands[1].reg) << 16;
21074 inst.instruction |= LOW4 (inst.operands[0].reg) << 12;
21075 inst.instruction |= (rot == 270) << 12;
21076 inst.instruction |= HI1 (inst.operands[1].reg) << 7;
21077 inst.instruction |= HI1 (inst.operands[2].reg) << 5;
21078 inst.instruction |= LOW4 (inst.operands[2].reg);
21083 /* Dot Product instructions encoding support. */
21086 do_neon_dotproduct (int unsigned_p)
21088 enum neon_shape rs;
21089 unsigned scalar_oprd2 = 0;
21092 if (inst.cond != COND_ALWAYS)
21093 as_warn (_("Dot Product instructions cannot be conditional, the behaviour "
21094 "is UNPREDICTABLE"));
21096 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, fpu_neon_ext_armv8),
21099 /* Dot Product instructions are in three-same D/Q register format or the third
21100 operand can be a scalar index register. */
21101 if (inst.operands[2].isscalar)
21103 scalar_oprd2 = neon_scalar_for_mul (inst.operands[2].reg, 32);
21104 high8 = 0xfe000000;
21105 rs = neon_select_shape (NS_DDS, NS_QQS, NS_NULL);
21109 high8 = 0xfc000000;
21110 rs = neon_select_shape (NS_DDD, NS_QQQ, NS_NULL);
21114 neon_check_type (3, rs, N_EQK, N_EQK, N_KEY | N_U8);
21116 neon_check_type (3, rs, N_EQK, N_EQK, N_KEY | N_S8);
21118 /* The "U" bit in traditional Three Same encoding is fixed to 0 for Dot
21119 Product instruction, so we pass 0 as the "ubit" parameter. And the
21120 "Size" field are fixed to 0x2, so we pass 32 as the "size" parameter. */
21121 neon_three_same (neon_quad (rs), 0, 32);
21123 /* Undo neon_dp_fixup. Dot Product instructions are using a slightly
21124 different NEON three-same encoding. */
21125 inst.instruction &= 0x00ffffff;
21126 inst.instruction |= high8;
21127 /* Encode 'U' bit which indicates signedness. */
21128 inst.instruction |= (unsigned_p ? 1 : 0) << 4;
21129 /* Re-encode operand2 if it's indexed scalar operand. What has been encoded
21130 from inst.operand[2].reg in neon_three_same is GAS's internal encoding, not
21131 the instruction encoding. */
21132 if (inst.operands[2].isscalar)
21134 inst.instruction &= 0xffffffd0;
21135 inst.instruction |= LOW4 (scalar_oprd2);
21136 inst.instruction |= HI1 (scalar_oprd2) << 5;
21140 /* Dot Product instructions for signed integer. */
21143 do_neon_dotproduct_s (void)
21145 return do_neon_dotproduct (0);
21148 /* Dot Product instructions for unsigned integer. */
21151 do_neon_dotproduct_u (void)
21153 return do_neon_dotproduct (1);
21156 /* Crypto v1 instructions. */
21158 do_crypto_2op_1 (unsigned elttype, int op)
21160 set_pred_insn_type (OUTSIDE_PRED_INSN);
21162 if (neon_check_type (2, NS_QQ, N_EQK | N_UNT, elttype | N_UNT | N_KEY).type
21168 NEON_ENCODE (INTEGER, inst);
21169 inst.instruction |= LOW4 (inst.operands[0].reg) << 12;
21170 inst.instruction |= HI1 (inst.operands[0].reg) << 22;
21171 inst.instruction |= LOW4 (inst.operands[1].reg);
21172 inst.instruction |= HI1 (inst.operands[1].reg) << 5;
21174 inst.instruction |= op << 6;
21177 inst.instruction |= 0xfc000000;
21179 inst.instruction |= 0xf0000000;
21183 do_crypto_3op_1 (int u, int op)
21185 set_pred_insn_type (OUTSIDE_PRED_INSN);
21187 if (neon_check_type (3, NS_QQQ, N_EQK | N_UNT, N_EQK | N_UNT,
21188 N_32 | N_UNT | N_KEY).type == NT_invtype)
21193 NEON_ENCODE (INTEGER, inst);
21194 neon_three_same (1, u, 8 << op);
21200 do_crypto_2op_1 (N_8, 0);
21206 do_crypto_2op_1 (N_8, 1);
21212 do_crypto_2op_1 (N_8, 2);
21218 do_crypto_2op_1 (N_8, 3);
21224 do_crypto_3op_1 (0, 0);
21230 do_crypto_3op_1 (0, 1);
21236 do_crypto_3op_1 (0, 2);
21242 do_crypto_3op_1 (0, 3);
21248 do_crypto_3op_1 (1, 0);
21254 do_crypto_3op_1 (1, 1);
21258 do_sha256su1 (void)
21260 do_crypto_3op_1 (1, 2);
21266 do_crypto_2op_1 (N_32, -1);
21272 do_crypto_2op_1 (N_32, 0);
21276 do_sha256su0 (void)
21278 do_crypto_2op_1 (N_32, 1);
21282 do_crc32_1 (unsigned int poly, unsigned int sz)
21284 unsigned int Rd = inst.operands[0].reg;
21285 unsigned int Rn = inst.operands[1].reg;
21286 unsigned int Rm = inst.operands[2].reg;
21288 set_pred_insn_type (OUTSIDE_PRED_INSN);
21289 inst.instruction |= LOW4 (Rd) << (thumb_mode ? 8 : 12);
21290 inst.instruction |= LOW4 (Rn) << 16;
21291 inst.instruction |= LOW4 (Rm);
21292 inst.instruction |= sz << (thumb_mode ? 4 : 21);
21293 inst.instruction |= poly << (thumb_mode ? 20 : 9);
21295 if (Rd == REG_PC || Rn == REG_PC || Rm == REG_PC)
21296 as_warn (UNPRED_REG ("r15"));
21338 constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, fpu_vfp_ext_armv8),
21340 neon_check_type (2, NS_FD, N_S32, N_F64);
21341 do_vfp_sp_dp_cvt ();
21342 do_vfp_cond_or_thumb ();
21346 /* Overall per-instruction processing. */
21348 /* We need to be able to fix up arbitrary expressions in some statements.
21349 This is so that we can handle symbols that are an arbitrary distance from
21350 the pc. The most common cases are of the form ((+/-sym -/+ . - 8) & mask),
21351 which returns part of an address in a form which will be valid for
21352 a data instruction. We do this by pushing the expression into a symbol
21353 in the expr_section, and creating a fix for that. */
21356 fix_new_arm (fragS * frag,
21370 /* Create an absolute valued symbol, so we have something to
21371 refer to in the object file. Unfortunately for us, gas's
21372 generic expression parsing will already have folded out
21373 any use of .set foo/.type foo %function that may have
21374 been used to set type information of the target location,
21375 that's being specified symbolically. We have to presume
21376 the user knows what they are doing. */
21380 sprintf (name, "*ABS*0x%lx", (unsigned long)exp->X_add_number);
21382 symbol = symbol_find_or_make (name);
21383 S_SET_SEGMENT (symbol, absolute_section);
21384 symbol_set_frag (symbol, &zero_address_frag);
21385 S_SET_VALUE (symbol, exp->X_add_number);
21386 exp->X_op = O_symbol;
21387 exp->X_add_symbol = symbol;
21388 exp->X_add_number = 0;
21394 new_fix = fix_new_exp (frag, where, size, exp, pc_rel,
21395 (enum bfd_reloc_code_real) reloc);
21399 new_fix = (fixS *) fix_new (frag, where, size, make_expr_symbol (exp), 0,
21400 pc_rel, (enum bfd_reloc_code_real) reloc);
21404 /* Mark whether the fix is to a THUMB instruction, or an ARM
21406 new_fix->tc_fix_data = thumb_mode;
21409 /* Create a frg for an instruction requiring relaxation. */
21411 output_relax_insn (void)
21417 /* The size of the instruction is unknown, so tie the debug info to the
21418 start of the instruction. */
21419 dwarf2_emit_insn (0);
21421 switch (inst.relocs[0].exp.X_op)
21424 sym = inst.relocs[0].exp.X_add_symbol;
21425 offset = inst.relocs[0].exp.X_add_number;
21429 offset = inst.relocs[0].exp.X_add_number;
21432 sym = make_expr_symbol (&inst.relocs[0].exp);
21436 to = frag_var (rs_machine_dependent, INSN_SIZE, THUMB_SIZE,
21437 inst.relax, sym, offset, NULL/*offset, opcode*/);
21438 md_number_to_chars (to, inst.instruction, THUMB_SIZE);
21441 /* Write a 32-bit thumb instruction to buf. */
21443 put_thumb32_insn (char * buf, unsigned long insn)
21445 md_number_to_chars (buf, insn >> 16, THUMB_SIZE);
21446 md_number_to_chars (buf + THUMB_SIZE, insn, THUMB_SIZE);
21450 output_inst (const char * str)
21456 as_bad ("%s -- `%s'", inst.error, str);
21461 output_relax_insn ();
21464 if (inst.size == 0)
21467 to = frag_more (inst.size);
21468 /* PR 9814: Record the thumb mode into the current frag so that we know
21469 what type of NOP padding to use, if necessary. We override any previous
21470 setting so that if the mode has changed then the NOPS that we use will
21471 match the encoding of the last instruction in the frag. */
21472 frag_now->tc_frag_data.thumb_mode = thumb_mode | MODE_RECORDED;
21474 if (thumb_mode && (inst.size > THUMB_SIZE))
21476 gas_assert (inst.size == (2 * THUMB_SIZE));
21477 put_thumb32_insn (to, inst.instruction);
21479 else if (inst.size > INSN_SIZE)
21481 gas_assert (inst.size == (2 * INSN_SIZE));
21482 md_number_to_chars (to, inst.instruction, INSN_SIZE);
21483 md_number_to_chars (to + INSN_SIZE, inst.instruction, INSN_SIZE);
21486 md_number_to_chars (to, inst.instruction, inst.size);
21489 for (r = 0; r < ARM_IT_MAX_RELOCS; r++)
21491 if (inst.relocs[r].type != BFD_RELOC_UNUSED)
21492 fix_new_arm (frag_now, to - frag_now->fr_literal,
21493 inst.size, & inst.relocs[r].exp, inst.relocs[r].pc_rel,
21494 inst.relocs[r].type);
21497 dwarf2_emit_insn (inst.size);
21501 output_it_inst (int cond, int mask, char * to)
21503 unsigned long instruction = 0xbf00;
21506 instruction |= mask;
21507 instruction |= cond << 4;
21511 to = frag_more (2);
21513 dwarf2_emit_insn (2);
21517 md_number_to_chars (to, instruction, 2);
21522 /* Tag values used in struct asm_opcode's tag field. */
21525 OT_unconditional, /* Instruction cannot be conditionalized.
21526 The ARM condition field is still 0xE. */
21527 OT_unconditionalF, /* Instruction cannot be conditionalized
21528 and carries 0xF in its ARM condition field. */
21529 OT_csuffix, /* Instruction takes a conditional suffix. */
21530 OT_csuffixF, /* Some forms of the instruction take a scalar
21531 conditional suffix, others place 0xF where the
21532 condition field would be, others take a vector
21533 conditional suffix. */
21534 OT_cinfix3, /* Instruction takes a conditional infix,
21535 beginning at character index 3. (In
21536 unified mode, it becomes a suffix.) */
21537 OT_cinfix3_deprecated, /* The same as OT_cinfix3. This is used for
21538 tsts, cmps, cmns, and teqs. */
21539 OT_cinfix3_legacy, /* Legacy instruction takes a conditional infix at
21540 character index 3, even in unified mode. Used for
21541 legacy instructions where suffix and infix forms
21542 may be ambiguous. */
21543 OT_csuf_or_in3, /* Instruction takes either a conditional
21544 suffix or an infix at character index 3. */
21545 OT_odd_infix_unc, /* This is the unconditional variant of an
21546 instruction that takes a conditional infix
21547 at an unusual position. In unified mode,
21548 this variant will accept a suffix. */
21549 OT_odd_infix_0 /* Values greater than or equal to OT_odd_infix_0
21550 are the conditional variants of instructions that
21551 take conditional infixes in unusual positions.
21552 The infix appears at character index
21553 (tag - OT_odd_infix_0). These are not accepted
21554 in unified mode. */
21557 /* Subroutine of md_assemble, responsible for looking up the primary
21558 opcode from the mnemonic the user wrote. STR points to the
21559 beginning of the mnemonic.
21561 This is not simply a hash table lookup, because of conditional
21562 variants. Most instructions have conditional variants, which are
21563 expressed with a _conditional affix_ to the mnemonic. If we were
21564 to encode each conditional variant as a literal string in the opcode
21565 table, it would have approximately 20,000 entries.
21567 Most mnemonics take this affix as a suffix, and in unified syntax,
21568 'most' is upgraded to 'all'. However, in the divided syntax, some
21569 instructions take the affix as an infix, notably the s-variants of
21570 the arithmetic instructions. Of those instructions, all but six
21571 have the infix appear after the third character of the mnemonic.
21573 Accordingly, the algorithm for looking up primary opcodes given
21576 1. Look up the identifier in the opcode table.
21577 If we find a match, go to step U.
21579 2. Look up the last two characters of the identifier in the
21580 conditions table. If we find a match, look up the first N-2
21581 characters of the identifier in the opcode table. If we
21582 find a match, go to step CE.
21584 3. Look up the fourth and fifth characters of the identifier in
21585 the conditions table. If we find a match, extract those
21586 characters from the identifier, and look up the remaining
21587 characters in the opcode table. If we find a match, go
21592 U. Examine the tag field of the opcode structure, in case this is
21593 one of the six instructions with its conditional infix in an
21594 unusual place. If it is, the tag tells us where to find the
21595 infix; look it up in the conditions table and set inst.cond
21596 accordingly. Otherwise, this is an unconditional instruction.
21597 Again set inst.cond accordingly. Return the opcode structure.
21599 CE. Examine the tag field to make sure this is an instruction that
21600 should receive a conditional suffix. If it is not, fail.
21601 Otherwise, set inst.cond from the suffix we already looked up,
21602 and return the opcode structure.
21604 CM. Examine the tag field to make sure this is an instruction that
21605 should receive a conditional infix after the third character.
21606 If it is not, fail. Otherwise, undo the edits to the current
21607 line of input and proceed as for case CE. */
21609 static const struct asm_opcode *
21610 opcode_lookup (char **str)
21614 const struct asm_opcode *opcode;
21615 const struct asm_cond *cond;
21618 /* Scan up to the end of the mnemonic, which must end in white space,
21619 '.' (in unified mode, or for Neon/VFP instructions), or end of string. */
21620 for (base = end = *str; *end != '\0'; end++)
21621 if (*end == ' ' || *end == '.')
21627 /* Handle a possible width suffix and/or Neon type suffix. */
21632 /* The .w and .n suffixes are only valid if the unified syntax is in
21634 if (unified_syntax && end[1] == 'w')
21636 else if (unified_syntax && end[1] == 'n')
21641 inst.vectype.elems = 0;
21643 *str = end + offset;
21645 if (end[offset] == '.')
21647 /* See if we have a Neon type suffix (possible in either unified or
21648 non-unified ARM syntax mode). */
21649 if (parse_neon_type (&inst.vectype, str) == FAIL)
21652 else if (end[offset] != '\0' && end[offset] != ' ')
21658 /* Look for unaffixed or special-case affixed mnemonic. */
21659 opcode = (const struct asm_opcode *) hash_find_n (arm_ops_hsh, base,
21664 if (opcode->tag < OT_odd_infix_0)
21666 inst.cond = COND_ALWAYS;
21670 if (warn_on_deprecated && unified_syntax)
21671 as_tsktsk (_("conditional infixes are deprecated in unified syntax"));
21672 affix = base + (opcode->tag - OT_odd_infix_0);
21673 cond = (const struct asm_cond *) hash_find_n (arm_cond_hsh, affix, 2);
21676 inst.cond = cond->value;
21679 if (ARM_CPU_HAS_FEATURE (cpu_variant, mve_ext))
21681 /* Cannot have a conditional suffix on a mnemonic of less than a character.
21683 if (end - base < 2)
21686 cond = (const struct asm_cond *) hash_find_n (arm_vcond_hsh, affix, 1);
21687 opcode = (const struct asm_opcode *) hash_find_n (arm_ops_hsh, base,
21689 /* If this opcode can not be vector predicated then don't accept it with a
21690 vector predication code. */
21691 if (opcode && !opcode->mayBeVecPred)
21694 if (!opcode || !cond)
21696 /* Cannot have a conditional suffix on a mnemonic of less than two
21698 if (end - base < 3)
21701 /* Look for suffixed mnemonic. */
21703 cond = (const struct asm_cond *) hash_find_n (arm_cond_hsh, affix, 2);
21704 opcode = (const struct asm_opcode *) hash_find_n (arm_ops_hsh, base,
21708 if (opcode && cond)
21711 switch (opcode->tag)
21713 case OT_cinfix3_legacy:
21714 /* Ignore conditional suffixes matched on infix only mnemonics. */
21718 case OT_cinfix3_deprecated:
21719 case OT_odd_infix_unc:
21720 if (!unified_syntax)
21722 /* Fall through. */
21726 case OT_csuf_or_in3:
21727 inst.cond = cond->value;
21730 case OT_unconditional:
21731 case OT_unconditionalF:
21733 inst.cond = cond->value;
21736 /* Delayed diagnostic. */
21737 inst.error = BAD_COND;
21738 inst.cond = COND_ALWAYS;
21747 /* Cannot have a usual-position infix on a mnemonic of less than
21748 six characters (five would be a suffix). */
21749 if (end - base < 6)
21752 /* Look for infixed mnemonic in the usual position. */
21754 cond = (const struct asm_cond *) hash_find_n (arm_cond_hsh, affix, 2);
21758 memcpy (save, affix, 2);
21759 memmove (affix, affix + 2, (end - affix) - 2);
21760 opcode = (const struct asm_opcode *) hash_find_n (arm_ops_hsh, base,
21762 memmove (affix + 2, affix, (end - affix) - 2);
21763 memcpy (affix, save, 2);
21766 && (opcode->tag == OT_cinfix3
21767 || opcode->tag == OT_cinfix3_deprecated
21768 || opcode->tag == OT_csuf_or_in3
21769 || opcode->tag == OT_cinfix3_legacy))
21772 if (warn_on_deprecated && unified_syntax
21773 && (opcode->tag == OT_cinfix3
21774 || opcode->tag == OT_cinfix3_deprecated))
21775 as_tsktsk (_("conditional infixes are deprecated in unified syntax"));
21777 inst.cond = cond->value;
21784 /* This function generates an initial IT instruction, leaving its block
21785 virtually open for the new instructions. Eventually,
21786 the mask will be updated by now_pred_add_mask () each time
21787 a new instruction needs to be included in the IT block.
21788 Finally, the block is closed with close_automatic_it_block ().
21789 The block closure can be requested either from md_assemble (),
21790 a tencode (), or due to a label hook. */
21793 new_automatic_it_block (int cond)
21795 now_pred.state = AUTOMATIC_PRED_BLOCK;
21796 now_pred.mask = 0x18;
21797 now_pred.cc = cond;
21798 now_pred.block_length = 1;
21799 mapping_state (MAP_THUMB);
21800 now_pred.insn = output_it_inst (cond, now_pred.mask, NULL);
21801 now_pred.warn_deprecated = FALSE;
21802 now_pred.insn_cond = TRUE;
21805 /* Close an automatic IT block.
21806 See comments in new_automatic_it_block (). */
21809 close_automatic_it_block (void)
21811 now_pred.mask = 0x10;
21812 now_pred.block_length = 0;
21815 /* Update the mask of the current automatically-generated IT
21816 instruction. See comments in new_automatic_it_block (). */
21819 now_pred_add_mask (int cond)
21821 #define CLEAR_BIT(value, nbit) ((value) & ~(1 << (nbit)))
21822 #define SET_BIT_VALUE(value, bitvalue, nbit) (CLEAR_BIT (value, nbit) \
21823 | ((bitvalue) << (nbit)))
21824 const int resulting_bit = (cond & 1);
21826 now_pred.mask &= 0xf;
21827 now_pred.mask = SET_BIT_VALUE (now_pred.mask,
21829 (5 - now_pred.block_length));
21830 now_pred.mask = SET_BIT_VALUE (now_pred.mask,
21832 ((5 - now_pred.block_length) - 1));
21833 output_it_inst (now_pred.cc, now_pred.mask, now_pred.insn);
21836 #undef SET_BIT_VALUE
21839 /* The IT blocks handling machinery is accessed through the these functions:
21840 it_fsm_pre_encode () from md_assemble ()
21841 set_pred_insn_type () optional, from the tencode functions
21842 set_pred_insn_type_last () ditto
21843 in_pred_block () ditto
21844 it_fsm_post_encode () from md_assemble ()
21845 force_automatic_it_block_close () from label handling functions
21848 1) md_assemble () calls it_fsm_pre_encode () before calling tencode (),
21849 initializing the IT insn type with a generic initial value depending
21850 on the inst.condition.
21851 2) During the tencode function, two things may happen:
21852 a) The tencode function overrides the IT insn type by
21853 calling either set_pred_insn_type (type) or
21854 set_pred_insn_type_last ().
21855 b) The tencode function queries the IT block state by
21856 calling in_pred_block () (i.e. to determine narrow/not narrow mode).
21858 Both set_pred_insn_type and in_pred_block run the internal FSM state
21859 handling function (handle_pred_state), because: a) setting the IT insn
21860 type may incur in an invalid state (exiting the function),
21861 and b) querying the state requires the FSM to be updated.
21862 Specifically we want to avoid creating an IT block for conditional
21863 branches, so it_fsm_pre_encode is actually a guess and we can't
21864 determine whether an IT block is required until the tencode () routine
21865 has decided what type of instruction this actually it.
21866 Because of this, if set_pred_insn_type and in_pred_block have to be
21867 used, set_pred_insn_type has to be called first.
21869 set_pred_insn_type_last () is a wrapper of set_pred_insn_type (type),
21870 that determines the insn IT type depending on the inst.cond code.
21871 When a tencode () routine encodes an instruction that can be
21872 either outside an IT block, or, in the case of being inside, has to be
21873 the last one, set_pred_insn_type_last () will determine the proper
21874 IT instruction type based on the inst.cond code. Otherwise,
21875 set_pred_insn_type can be called for overriding that logic or
21876 for covering other cases.
21878 Calling handle_pred_state () may not transition the IT block state to
21879 OUTSIDE_PRED_BLOCK immediately, since the (current) state could be
21880 still queried. Instead, if the FSM determines that the state should
21881 be transitioned to OUTSIDE_PRED_BLOCK, a flag is marked to be closed
21882 after the tencode () function: that's what it_fsm_post_encode () does.
21884 Since in_pred_block () calls the state handling function to get an
21885 updated state, an error may occur (due to invalid insns combination).
21886 In that case, inst.error is set.
21887 Therefore, inst.error has to be checked after the execution of
21888 the tencode () routine.
21890 3) Back in md_assemble(), it_fsm_post_encode () is called to commit
21891 any pending state change (if any) that didn't take place in
21892 handle_pred_state () as explained above. */
21895 it_fsm_pre_encode (void)
21897 if (inst.cond != COND_ALWAYS)
21898 inst.pred_insn_type = INSIDE_IT_INSN;
21900 inst.pred_insn_type = OUTSIDE_PRED_INSN;
21902 now_pred.state_handled = 0;
21905 /* IT state FSM handling function. */
21906 /* MVE instructions and non-MVE instructions are handled differently because of
21907 the introduction of VPT blocks.
21908 Specifications say that any non-MVE instruction inside a VPT block is
21909 UNPREDICTABLE, with the exception of the BKPT instruction. Whereas most MVE
21910 instructions are deemed to be UNPREDICTABLE if inside an IT block. For the
21911 few exceptions we have MVE_UNPREDICABLE_INSN.
21912 The error messages provided depending on the different combinations possible
21913 are described in the cases below:
21914 For 'most' MVE instructions:
21915 1) In an IT block, with an IT code: syntax error
21916 2) In an IT block, with a VPT code: error: must be in a VPT block
21917 3) In an IT block, with no code: warning: UNPREDICTABLE
21918 4) In a VPT block, with an IT code: syntax error
21919 5) In a VPT block, with a VPT code: OK!
21920 6) In a VPT block, with no code: error: missing code
21921 7) Outside a pred block, with an IT code: error: syntax error
21922 8) Outside a pred block, with a VPT code: error: should be in a VPT block
21923 9) Outside a pred block, with no code: OK!
21924 For non-MVE instructions:
21925 10) In an IT block, with an IT code: OK!
21926 11) In an IT block, with a VPT code: syntax error
21927 12) In an IT block, with no code: error: missing code
21928 13) In a VPT block, with an IT code: error: should be in an IT block
21929 14) In a VPT block, with a VPT code: syntax error
21930 15) In a VPT block, with no code: UNPREDICTABLE
21931 16) Outside a pred block, with an IT code: error: should be in an IT block
21932 17) Outside a pred block, with a VPT code: syntax error
21933 18) Outside a pred block, with no code: OK!
21938 handle_pred_state (void)
21940 now_pred.state_handled = 1;
21941 now_pred.insn_cond = FALSE;
21943 switch (now_pred.state)
21945 case OUTSIDE_PRED_BLOCK:
21946 switch (inst.pred_insn_type)
21948 case MVE_UNPREDICABLE_INSN:
21949 case MVE_OUTSIDE_PRED_INSN:
21950 if (inst.cond < COND_ALWAYS)
21952 /* Case 7: Outside a pred block, with an IT code: error: syntax
21954 inst.error = BAD_SYNTAX;
21957 /* Case 9: Outside a pred block, with no code: OK! */
21959 case OUTSIDE_PRED_INSN:
21960 if (inst.cond > COND_ALWAYS)
21962 /* Case 17: Outside a pred block, with a VPT code: syntax error.
21964 inst.error = BAD_SYNTAX;
21967 /* Case 18: Outside a pred block, with no code: OK! */
21970 case INSIDE_VPT_INSN:
21971 /* Case 8: Outside a pred block, with a VPT code: error: should be in
21973 inst.error = BAD_OUT_VPT;
21976 case INSIDE_IT_INSN:
21977 case INSIDE_IT_LAST_INSN:
21978 if (inst.cond < COND_ALWAYS)
21980 /* Case 16: Outside a pred block, with an IT code: error: should
21981 be in an IT block. */
21982 if (thumb_mode == 0)
21985 && !(implicit_it_mode & IMPLICIT_IT_MODE_ARM))
21986 as_tsktsk (_("Warning: conditional outside an IT block"\
21991 if ((implicit_it_mode & IMPLICIT_IT_MODE_THUMB)
21992 && ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v6t2))
21994 /* Automatically generate the IT instruction. */
21995 new_automatic_it_block (inst.cond);
21996 if (inst.pred_insn_type == INSIDE_IT_LAST_INSN)
21997 close_automatic_it_block ();
22001 inst.error = BAD_OUT_IT;
22007 else if (inst.cond > COND_ALWAYS)
22009 /* Case 17: Outside a pred block, with a VPT code: syntax error.
22011 inst.error = BAD_SYNTAX;
22016 case IF_INSIDE_IT_LAST_INSN:
22017 case NEUTRAL_IT_INSN:
22021 if (inst.cond != COND_ALWAYS)
22022 first_error (BAD_SYNTAX);
22023 now_pred.state = MANUAL_PRED_BLOCK;
22024 now_pred.block_length = 0;
22025 now_pred.type = VECTOR_PRED;
22029 now_pred.state = MANUAL_PRED_BLOCK;
22030 now_pred.block_length = 0;
22031 now_pred.type = SCALAR_PRED;
22036 case AUTOMATIC_PRED_BLOCK:
22037 /* Three things may happen now:
22038 a) We should increment current it block size;
22039 b) We should close current it block (closing insn or 4 insns);
22040 c) We should close current it block and start a new one (due
22041 to incompatible conditions or
22042 4 insns-length block reached). */
22044 switch (inst.pred_insn_type)
22046 case INSIDE_VPT_INSN:
22048 case MVE_UNPREDICABLE_INSN:
22049 case MVE_OUTSIDE_PRED_INSN:
22051 case OUTSIDE_PRED_INSN:
22052 /* The closure of the block shall happen immediately,
22053 so any in_pred_block () call reports the block as closed. */
22054 force_automatic_it_block_close ();
22057 case INSIDE_IT_INSN:
22058 case INSIDE_IT_LAST_INSN:
22059 case IF_INSIDE_IT_LAST_INSN:
22060 now_pred.block_length++;
22062 if (now_pred.block_length > 4
22063 || !now_pred_compatible (inst.cond))
22065 force_automatic_it_block_close ();
22066 if (inst.pred_insn_type != IF_INSIDE_IT_LAST_INSN)
22067 new_automatic_it_block (inst.cond);
22071 now_pred.insn_cond = TRUE;
22072 now_pred_add_mask (inst.cond);
22075 if (now_pred.state == AUTOMATIC_PRED_BLOCK
22076 && (inst.pred_insn_type == INSIDE_IT_LAST_INSN
22077 || inst.pred_insn_type == IF_INSIDE_IT_LAST_INSN))
22078 close_automatic_it_block ();
22081 case NEUTRAL_IT_INSN:
22082 now_pred.block_length++;
22083 now_pred.insn_cond = TRUE;
22085 if (now_pred.block_length > 4)
22086 force_automatic_it_block_close ();
22088 now_pred_add_mask (now_pred.cc & 1);
22092 close_automatic_it_block ();
22093 now_pred.state = MANUAL_PRED_BLOCK;
22098 case MANUAL_PRED_BLOCK:
22101 if (now_pred.type == SCALAR_PRED)
22103 /* Check conditional suffixes. */
22104 cond = now_pred.cc ^ ((now_pred.mask >> 4) & 1) ^ 1;
22105 now_pred.mask <<= 1;
22106 now_pred.mask &= 0x1f;
22107 is_last = (now_pred.mask == 0x10);
22111 now_pred.cc ^= (now_pred.mask >> 4);
22112 cond = now_pred.cc + 0xf;
22113 now_pred.mask <<= 1;
22114 now_pred.mask &= 0x1f;
22115 is_last = now_pred.mask == 0x10;
22117 now_pred.insn_cond = TRUE;
22119 switch (inst.pred_insn_type)
22121 case OUTSIDE_PRED_INSN:
22122 if (now_pred.type == SCALAR_PRED)
22124 if (inst.cond == COND_ALWAYS)
22126 /* Case 12: In an IT block, with no code: error: missing
22128 inst.error = BAD_NOT_IT;
22131 else if (inst.cond > COND_ALWAYS)
22133 /* Case 11: In an IT block, with a VPT code: syntax error.
22135 inst.error = BAD_SYNTAX;
22138 else if (thumb_mode)
22140 /* This is for some special cases where a non-MVE
22141 instruction is not allowed in an IT block, such as cbz,
22142 but are put into one with a condition code.
22143 You could argue this should be a syntax error, but we
22144 gave the 'not allowed in IT block' diagnostic in the
22145 past so we will keep doing so. */
22146 inst.error = BAD_NOT_IT;
22153 /* Case 15: In a VPT block, with no code: UNPREDICTABLE. */
22154 as_tsktsk (MVE_NOT_VPT);
22157 case MVE_OUTSIDE_PRED_INSN:
22158 if (now_pred.type == SCALAR_PRED)
22160 if (inst.cond == COND_ALWAYS)
22162 /* Case 3: In an IT block, with no code: warning:
22164 as_tsktsk (MVE_NOT_IT);
22167 else if (inst.cond < COND_ALWAYS)
22169 /* Case 1: In an IT block, with an IT code: syntax error.
22171 inst.error = BAD_SYNTAX;
22179 if (inst.cond < COND_ALWAYS)
22181 /* Case 4: In a VPT block, with an IT code: syntax error.
22183 inst.error = BAD_SYNTAX;
22186 else if (inst.cond == COND_ALWAYS)
22188 /* Case 6: In a VPT block, with no code: error: missing
22190 inst.error = BAD_NOT_VPT;
22198 case MVE_UNPREDICABLE_INSN:
22199 as_tsktsk (now_pred.type == SCALAR_PRED ? MVE_NOT_IT : MVE_NOT_VPT);
22201 case INSIDE_IT_INSN:
22202 if (inst.cond > COND_ALWAYS)
22204 /* Case 11: In an IT block, with a VPT code: syntax error. */
22205 /* Case 14: In a VPT block, with a VPT code: syntax error. */
22206 inst.error = BAD_SYNTAX;
22209 else if (now_pred.type == SCALAR_PRED)
22211 /* Case 10: In an IT block, with an IT code: OK! */
22212 if (cond != inst.cond)
22214 inst.error = now_pred.type == SCALAR_PRED ? BAD_IT_COND :
22221 /* Case 13: In a VPT block, with an IT code: error: should be
22223 inst.error = BAD_OUT_IT;
22228 case INSIDE_VPT_INSN:
22229 if (now_pred.type == SCALAR_PRED)
22231 /* Case 2: In an IT block, with a VPT code: error: must be in a
22233 inst.error = BAD_OUT_VPT;
22236 /* Case 5: In a VPT block, with a VPT code: OK! */
22237 else if (cond != inst.cond)
22239 inst.error = BAD_VPT_COND;
22243 case INSIDE_IT_LAST_INSN:
22244 case IF_INSIDE_IT_LAST_INSN:
22245 if (now_pred.type == VECTOR_PRED || inst.cond > COND_ALWAYS)
22247 /* Case 4: In a VPT block, with an IT code: syntax error. */
22248 /* Case 11: In an IT block, with a VPT code: syntax error. */
22249 inst.error = BAD_SYNTAX;
22252 else if (cond != inst.cond)
22254 inst.error = BAD_IT_COND;
22259 inst.error = BAD_BRANCH;
22264 case NEUTRAL_IT_INSN:
22265 /* The BKPT instruction is unconditional even in a IT or VPT
22270 if (now_pred.type == SCALAR_PRED)
22272 inst.error = BAD_IT_IT;
22275 /* fall through. */
22277 if (inst.cond == COND_ALWAYS)
22279 /* Executing a VPT/VPST instruction inside an IT block or a
22280 VPT/VPST/IT instruction inside a VPT block is UNPREDICTABLE.
22282 if (now_pred.type == SCALAR_PRED)
22283 as_tsktsk (MVE_NOT_IT);
22285 as_tsktsk (MVE_NOT_VPT);
22290 /* VPT/VPST do not accept condition codes. */
22291 inst.error = BAD_SYNTAX;
22302 struct depr_insn_mask
22304 unsigned long pattern;
22305 unsigned long mask;
22306 const char* description;
22309 /* List of 16-bit instruction patterns deprecated in an IT block in
22311 static const struct depr_insn_mask depr_it_insns[] = {
22312 { 0xc000, 0xc000, N_("Short branches, Undefined, SVC, LDM/STM") },
22313 { 0xb000, 0xb000, N_("Miscellaneous 16-bit instructions") },
22314 { 0xa000, 0xb800, N_("ADR") },
22315 { 0x4800, 0xf800, N_("Literal loads") },
22316 { 0x4478, 0xf478, N_("Hi-register ADD, MOV, CMP, BX, BLX using pc") },
22317 { 0x4487, 0xfc87, N_("Hi-register ADD, MOV, CMP using pc") },
22318 /* NOTE: 0x00dd is not the real encoding, instead, it is the 'tvalue'
22319 field in asm_opcode. 'tvalue' is used at the stage this check happen. */
22320 { 0x00dd, 0x7fff, N_("ADD/SUB sp, sp #imm") },
22325 it_fsm_post_encode (void)
22329 if (!now_pred.state_handled)
22330 handle_pred_state ();
22332 if (now_pred.insn_cond
22333 && !now_pred.warn_deprecated
22334 && warn_on_deprecated
22335 && ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v8)
22336 && !ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_m))
22338 if (inst.instruction >= 0x10000)
22340 as_tsktsk (_("IT blocks containing 32-bit Thumb instructions are "
22341 "performance deprecated in ARMv8-A and ARMv8-R"));
22342 now_pred.warn_deprecated = TRUE;
22346 const struct depr_insn_mask *p = depr_it_insns;
22348 while (p->mask != 0)
22350 if ((inst.instruction & p->mask) == p->pattern)
22352 as_tsktsk (_("IT blocks containing 16-bit Thumb "
22353 "instructions of the following class are "
22354 "performance deprecated in ARMv8-A and "
22355 "ARMv8-R: %s"), p->description);
22356 now_pred.warn_deprecated = TRUE;
22364 if (now_pred.block_length > 1)
22366 as_tsktsk (_("IT blocks containing more than one conditional "
22367 "instruction are performance deprecated in ARMv8-A and "
22369 now_pred.warn_deprecated = TRUE;
22373 is_last = (now_pred.mask == 0x10);
22376 now_pred.state = OUTSIDE_PRED_BLOCK;
22382 force_automatic_it_block_close (void)
22384 if (now_pred.state == AUTOMATIC_PRED_BLOCK)
22386 close_automatic_it_block ();
22387 now_pred.state = OUTSIDE_PRED_BLOCK;
22393 in_pred_block (void)
22395 if (!now_pred.state_handled)
22396 handle_pred_state ();
22398 return now_pred.state != OUTSIDE_PRED_BLOCK;
22401 /* Whether OPCODE only has T32 encoding. Since this function is only used by
22402 t32_insn_ok, OPCODE enabled by v6t2 extension bit do not need to be listed
22403 here, hence the "known" in the function name. */
22406 known_t32_only_insn (const struct asm_opcode *opcode)
22408 /* Original Thumb-1 wide instruction. */
22409 if (opcode->tencode == do_t_blx
22410 || opcode->tencode == do_t_branch23
22411 || ARM_CPU_HAS_FEATURE (*opcode->tvariant, arm_ext_msr)
22412 || ARM_CPU_HAS_FEATURE (*opcode->tvariant, arm_ext_barrier))
22415 /* Wide-only instruction added to ARMv8-M Baseline. */
22416 if (ARM_CPU_HAS_FEATURE (*opcode->tvariant, arm_ext_v8m_m_only)
22417 || ARM_CPU_HAS_FEATURE (*opcode->tvariant, arm_ext_atomics)
22418 || ARM_CPU_HAS_FEATURE (*opcode->tvariant, arm_ext_v6t2_v8m)
22419 || ARM_CPU_HAS_FEATURE (*opcode->tvariant, arm_ext_div))
22425 /* Whether wide instruction variant can be used if available for a valid OPCODE
22429 t32_insn_ok (arm_feature_set arch, const struct asm_opcode *opcode)
22431 if (known_t32_only_insn (opcode))
22434 /* Instruction with narrow and wide encoding added to ARMv8-M. Availability
22435 of variant T3 of B.W is checked in do_t_branch. */
22436 if (ARM_CPU_HAS_FEATURE (arch, arm_ext_v8m)
22437 && opcode->tencode == do_t_branch)
22440 /* MOV accepts T1/T3 encodings under Baseline, T3 encoding is 32bit. */
22441 if (ARM_CPU_HAS_FEATURE (arch, arm_ext_v8m)
22442 && opcode->tencode == do_t_mov_cmp
22443 /* Make sure CMP instruction is not affected. */
22444 && opcode->aencode == do_mov)
22447 /* Wide instruction variants of all instructions with narrow *and* wide
22448 variants become available with ARMv6t2. Other opcodes are either
22449 narrow-only or wide-only and are thus available if OPCODE is valid. */
22450 if (ARM_CPU_HAS_FEATURE (arch, arm_ext_v6t2))
22453 /* OPCODE with narrow only instruction variant or wide variant not
22459 md_assemble (char *str)
22462 const struct asm_opcode * opcode;
22464 /* Align the previous label if needed. */
22465 if (last_label_seen != NULL)
22467 symbol_set_frag (last_label_seen, frag_now);
22468 S_SET_VALUE (last_label_seen, (valueT) frag_now_fix ());
22469 S_SET_SEGMENT (last_label_seen, now_seg);
22472 memset (&inst, '\0', sizeof (inst));
22474 for (r = 0; r < ARM_IT_MAX_RELOCS; r++)
22475 inst.relocs[r].type = BFD_RELOC_UNUSED;
22477 opcode = opcode_lookup (&p);
22480 /* It wasn't an instruction, but it might be a register alias of
22481 the form alias .req reg, or a Neon .dn/.qn directive. */
22482 if (! create_register_alias (str, p)
22483 && ! create_neon_reg_alias (str, p))
22484 as_bad (_("bad instruction `%s'"), str);
22489 if (warn_on_deprecated && opcode->tag == OT_cinfix3_deprecated)
22490 as_tsktsk (_("s suffix on comparison instruction is deprecated"));
22492 /* The value which unconditional instructions should have in place of the
22493 condition field. */
22494 inst.uncond_value = (opcode->tag == OT_csuffixF) ? 0xf : -1;
22498 arm_feature_set variant;
22500 variant = cpu_variant;
22501 /* Only allow coprocessor instructions on Thumb-2 capable devices. */
22502 if (!ARM_CPU_HAS_FEATURE (variant, arm_arch_t2))
22503 ARM_CLEAR_FEATURE (variant, variant, fpu_any_hard);
22504 /* Check that this instruction is supported for this CPU. */
22505 if (!opcode->tvariant
22506 || (thumb_mode == 1
22507 && !ARM_CPU_HAS_FEATURE (variant, *opcode->tvariant)))
22509 if (opcode->tencode == do_t_swi)
22510 as_bad (_("SVC is not permitted on this architecture"));
22512 as_bad (_("selected processor does not support `%s' in Thumb mode"), str);
22515 if (inst.cond != COND_ALWAYS && !unified_syntax
22516 && opcode->tencode != do_t_branch)
22518 as_bad (_("Thumb does not support conditional execution"));
22522 /* Two things are addressed here:
22523 1) Implicit require narrow instructions on Thumb-1.
22524 This avoids relaxation accidentally introducing Thumb-2
22526 2) Reject wide instructions in non Thumb-2 cores.
22528 Only instructions with narrow and wide variants need to be handled
22529 but selecting all non wide-only instructions is easier. */
22530 if (!ARM_CPU_HAS_FEATURE (variant, arm_ext_v6t2)
22531 && !t32_insn_ok (variant, opcode))
22533 if (inst.size_req == 0)
22535 else if (inst.size_req == 4)
22537 if (ARM_CPU_HAS_FEATURE (variant, arm_ext_v8m))
22538 as_bad (_("selected processor does not support 32bit wide "
22539 "variant of instruction `%s'"), str);
22541 as_bad (_("selected processor does not support `%s' in "
22542 "Thumb-2 mode"), str);
22547 inst.instruction = opcode->tvalue;
22549 if (!parse_operands (p, opcode->operands, /*thumb=*/TRUE))
22551 /* Prepare the pred_insn_type for those encodings that don't set
22553 it_fsm_pre_encode ();
22555 opcode->tencode ();
22557 it_fsm_post_encode ();
22560 if (!(inst.error || inst.relax))
22562 gas_assert (inst.instruction < 0xe800 || inst.instruction > 0xffff);
22563 inst.size = (inst.instruction > 0xffff ? 4 : 2);
22564 if (inst.size_req && inst.size_req != inst.size)
22566 as_bad (_("cannot honor width suffix -- `%s'"), str);
22571 /* Something has gone badly wrong if we try to relax a fixed size
22573 gas_assert (inst.size_req == 0 || !inst.relax);
22575 ARM_MERGE_FEATURE_SETS (thumb_arch_used, thumb_arch_used,
22576 *opcode->tvariant);
22577 /* Many Thumb-2 instructions also have Thumb-1 variants, so explicitly
22578 set those bits when Thumb-2 32-bit instructions are seen. The impact
22579 of relaxable instructions will be considered later after we finish all
22581 if (ARM_FEATURE_CORE_EQUAL (cpu_variant, arm_arch_any))
22582 variant = arm_arch_none;
22584 variant = cpu_variant;
22585 if (inst.size == 4 && !t32_insn_ok (variant, opcode))
22586 ARM_MERGE_FEATURE_SETS (thumb_arch_used, thumb_arch_used,
22589 check_neon_suffixes;
22593 mapping_state (MAP_THUMB);
22596 else if (ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v1))
22600 /* bx is allowed on v5 cores, and sometimes on v4 cores. */
22601 is_bx = (opcode->aencode == do_bx);
22603 /* Check that this instruction is supported for this CPU. */
22604 if (!(is_bx && fix_v4bx)
22605 && !(opcode->avariant &&
22606 ARM_CPU_HAS_FEATURE (cpu_variant, *opcode->avariant)))
22608 as_bad (_("selected processor does not support `%s' in ARM mode"), str);
22613 as_bad (_("width suffixes are invalid in ARM mode -- `%s'"), str);
22617 inst.instruction = opcode->avalue;
22618 if (opcode->tag == OT_unconditionalF)
22619 inst.instruction |= 0xFU << 28;
22621 inst.instruction |= inst.cond << 28;
22622 inst.size = INSN_SIZE;
22623 if (!parse_operands (p, opcode->operands, /*thumb=*/FALSE))
22625 it_fsm_pre_encode ();
22626 opcode->aencode ();
22627 it_fsm_post_encode ();
22629 /* Arm mode bx is marked as both v4T and v5 because it's still required
22630 on a hypothetical non-thumb v5 core. */
22632 ARM_MERGE_FEATURE_SETS (arm_arch_used, arm_arch_used, arm_ext_v4t);
22634 ARM_MERGE_FEATURE_SETS (arm_arch_used, arm_arch_used,
22635 *opcode->avariant);
22637 check_neon_suffixes;
22641 mapping_state (MAP_ARM);
22646 as_bad (_("attempt to use an ARM instruction on a Thumb-only processor "
22654 check_pred_blocks_finished (void)
22659 for (sect = stdoutput->sections; sect != NULL; sect = sect->next)
22660 if (seg_info (sect)->tc_segment_info_data.current_pred.state
22661 == MANUAL_PRED_BLOCK)
22663 if (now_pred.type == SCALAR_PRED)
22664 as_warn (_("section '%s' finished with an open IT block."),
22667 as_warn (_("section '%s' finished with an open VPT/VPST block."),
22671 if (now_pred.state == MANUAL_PRED_BLOCK)
22673 if (now_pred.type == SCALAR_PRED)
22674 as_warn (_("file finished with an open IT block."));
22676 as_warn (_("file finished with an open VPT/VPST block."));
22681 /* Various frobbings of labels and their addresses. */
22684 arm_start_line_hook (void)
22686 last_label_seen = NULL;
22690 arm_frob_label (symbolS * sym)
22692 last_label_seen = sym;
22694 ARM_SET_THUMB (sym, thumb_mode);
22696 #if defined OBJ_COFF || defined OBJ_ELF
22697 ARM_SET_INTERWORK (sym, support_interwork);
22700 force_automatic_it_block_close ();
22702 /* Note - do not allow local symbols (.Lxxx) to be labelled
22703 as Thumb functions. This is because these labels, whilst
22704 they exist inside Thumb code, are not the entry points for
22705 possible ARM->Thumb calls. Also, these labels can be used
22706 as part of a computed goto or switch statement. eg gcc
22707 can generate code that looks like this:
22709 ldr r2, [pc, .Laaa]
22719 The first instruction loads the address of the jump table.
22720 The second instruction converts a table index into a byte offset.
22721 The third instruction gets the jump address out of the table.
22722 The fourth instruction performs the jump.
22724 If the address stored at .Laaa is that of a symbol which has the
22725 Thumb_Func bit set, then the linker will arrange for this address
22726 to have the bottom bit set, which in turn would mean that the
22727 address computation performed by the third instruction would end
22728 up with the bottom bit set. Since the ARM is capable of unaligned
22729 word loads, the instruction would then load the incorrect address
22730 out of the jump table, and chaos would ensue. */
22731 if (label_is_thumb_function_name
22732 && (S_GET_NAME (sym)[0] != '.' || S_GET_NAME (sym)[1] != 'L')
22733 && (bfd_get_section_flags (stdoutput, now_seg) & SEC_CODE) != 0)
22735 /* When the address of a Thumb function is taken the bottom
22736 bit of that address should be set. This will allow
22737 interworking between Arm and Thumb functions to work
22740 THUMB_SET_FUNC (sym, 1);
22742 label_is_thumb_function_name = FALSE;
22745 dwarf2_emit_label (sym);
22749 arm_data_in_code (void)
22751 if (thumb_mode && ! strncmp (input_line_pointer + 1, "data:", 5))
22753 *input_line_pointer = '/';
22754 input_line_pointer += 5;
22755 *input_line_pointer = 0;
22763 arm_canonicalize_symbol_name (char * name)
22767 if (thumb_mode && (len = strlen (name)) > 5
22768 && streq (name + len - 5, "/data"))
22769 *(name + len - 5) = 0;
22774 /* Table of all register names defined by default. The user can
22775 define additional names with .req. Note that all register names
22776 should appear in both upper and lowercase variants. Some registers
22777 also have mixed-case names. */
22779 #define REGDEF(s,n,t) { #s, n, REG_TYPE_##t, TRUE, 0 }
22780 #define REGNUM(p,n,t) REGDEF(p##n, n, t)
22781 #define REGNUM2(p,n,t) REGDEF(p##n, 2 * n, t)
22782 #define REGSET(p,t) \
22783 REGNUM(p, 0,t), REGNUM(p, 1,t), REGNUM(p, 2,t), REGNUM(p, 3,t), \
22784 REGNUM(p, 4,t), REGNUM(p, 5,t), REGNUM(p, 6,t), REGNUM(p, 7,t), \
22785 REGNUM(p, 8,t), REGNUM(p, 9,t), REGNUM(p,10,t), REGNUM(p,11,t), \
22786 REGNUM(p,12,t), REGNUM(p,13,t), REGNUM(p,14,t), REGNUM(p,15,t)
22787 #define REGSETH(p,t) \
22788 REGNUM(p,16,t), REGNUM(p,17,t), REGNUM(p,18,t), REGNUM(p,19,t), \
22789 REGNUM(p,20,t), REGNUM(p,21,t), REGNUM(p,22,t), REGNUM(p,23,t), \
22790 REGNUM(p,24,t), REGNUM(p,25,t), REGNUM(p,26,t), REGNUM(p,27,t), \
22791 REGNUM(p,28,t), REGNUM(p,29,t), REGNUM(p,30,t), REGNUM(p,31,t)
22792 #define REGSET2(p,t) \
22793 REGNUM2(p, 0,t), REGNUM2(p, 1,t), REGNUM2(p, 2,t), REGNUM2(p, 3,t), \
22794 REGNUM2(p, 4,t), REGNUM2(p, 5,t), REGNUM2(p, 6,t), REGNUM2(p, 7,t), \
22795 REGNUM2(p, 8,t), REGNUM2(p, 9,t), REGNUM2(p,10,t), REGNUM2(p,11,t), \
22796 REGNUM2(p,12,t), REGNUM2(p,13,t), REGNUM2(p,14,t), REGNUM2(p,15,t)
22797 #define SPLRBANK(base,bank,t) \
22798 REGDEF(lr_##bank, 768|((base+0)<<16), t), \
22799 REGDEF(sp_##bank, 768|((base+1)<<16), t), \
22800 REGDEF(spsr_##bank, 768|(base<<16)|SPSR_BIT, t), \
22801 REGDEF(LR_##bank, 768|((base+0)<<16), t), \
22802 REGDEF(SP_##bank, 768|((base+1)<<16), t), \
22803 REGDEF(SPSR_##bank, 768|(base<<16)|SPSR_BIT, t)
22805 static const struct reg_entry reg_names[] =
22807 /* ARM integer registers. */
22808 REGSET(r, RN), REGSET(R, RN),
22810 /* ATPCS synonyms. */
22811 REGDEF(a1,0,RN), REGDEF(a2,1,RN), REGDEF(a3, 2,RN), REGDEF(a4, 3,RN),
22812 REGDEF(v1,4,RN), REGDEF(v2,5,RN), REGDEF(v3, 6,RN), REGDEF(v4, 7,RN),
22813 REGDEF(v5,8,RN), REGDEF(v6,9,RN), REGDEF(v7,10,RN), REGDEF(v8,11,RN),
22815 REGDEF(A1,0,RN), REGDEF(A2,1,RN), REGDEF(A3, 2,RN), REGDEF(A4, 3,RN),
22816 REGDEF(V1,4,RN), REGDEF(V2,5,RN), REGDEF(V3, 6,RN), REGDEF(V4, 7,RN),
22817 REGDEF(V5,8,RN), REGDEF(V6,9,RN), REGDEF(V7,10,RN), REGDEF(V8,11,RN),
22819 /* Well-known aliases. */
22820 REGDEF(wr, 7,RN), REGDEF(sb, 9,RN), REGDEF(sl,10,RN), REGDEF(fp,11,RN),
22821 REGDEF(ip,12,RN), REGDEF(sp,13,RN), REGDEF(lr,14,RN), REGDEF(pc,15,RN),
22823 REGDEF(WR, 7,RN), REGDEF(SB, 9,RN), REGDEF(SL,10,RN), REGDEF(FP,11,RN),
22824 REGDEF(IP,12,RN), REGDEF(SP,13,RN), REGDEF(LR,14,RN), REGDEF(PC,15,RN),
22826 /* Defining the new Zero register from ARMv8.1-M. */
22830 /* Coprocessor numbers. */
22831 REGSET(p, CP), REGSET(P, CP),
22833 /* Coprocessor register numbers. The "cr" variants are for backward
22835 REGSET(c, CN), REGSET(C, CN),
22836 REGSET(cr, CN), REGSET(CR, CN),
22838 /* ARM banked registers. */
22839 REGDEF(R8_usr,512|(0<<16),RNB), REGDEF(r8_usr,512|(0<<16),RNB),
22840 REGDEF(R9_usr,512|(1<<16),RNB), REGDEF(r9_usr,512|(1<<16),RNB),
22841 REGDEF(R10_usr,512|(2<<16),RNB), REGDEF(r10_usr,512|(2<<16),RNB),
22842 REGDEF(R11_usr,512|(3<<16),RNB), REGDEF(r11_usr,512|(3<<16),RNB),
22843 REGDEF(R12_usr,512|(4<<16),RNB), REGDEF(r12_usr,512|(4<<16),RNB),
22844 REGDEF(SP_usr,512|(5<<16),RNB), REGDEF(sp_usr,512|(5<<16),RNB),
22845 REGDEF(LR_usr,512|(6<<16),RNB), REGDEF(lr_usr,512|(6<<16),RNB),
22847 REGDEF(R8_fiq,512|(8<<16),RNB), REGDEF(r8_fiq,512|(8<<16),RNB),
22848 REGDEF(R9_fiq,512|(9<<16),RNB), REGDEF(r9_fiq,512|(9<<16),RNB),
22849 REGDEF(R10_fiq,512|(10<<16),RNB), REGDEF(r10_fiq,512|(10<<16),RNB),
22850 REGDEF(R11_fiq,512|(11<<16),RNB), REGDEF(r11_fiq,512|(11<<16),RNB),
22851 REGDEF(R12_fiq,512|(12<<16),RNB), REGDEF(r12_fiq,512|(12<<16),RNB),
22852 REGDEF(SP_fiq,512|(13<<16),RNB), REGDEF(sp_fiq,512|(13<<16),RNB),
22853 REGDEF(LR_fiq,512|(14<<16),RNB), REGDEF(lr_fiq,512|(14<<16),RNB),
22854 REGDEF(SPSR_fiq,512|(14<<16)|SPSR_BIT,RNB), REGDEF(spsr_fiq,512|(14<<16)|SPSR_BIT,RNB),
22856 SPLRBANK(0,IRQ,RNB), SPLRBANK(0,irq,RNB),
22857 SPLRBANK(2,SVC,RNB), SPLRBANK(2,svc,RNB),
22858 SPLRBANK(4,ABT,RNB), SPLRBANK(4,abt,RNB),
22859 SPLRBANK(6,UND,RNB), SPLRBANK(6,und,RNB),
22860 SPLRBANK(12,MON,RNB), SPLRBANK(12,mon,RNB),
22861 REGDEF(elr_hyp,768|(14<<16),RNB), REGDEF(ELR_hyp,768|(14<<16),RNB),
22862 REGDEF(sp_hyp,768|(15<<16),RNB), REGDEF(SP_hyp,768|(15<<16),RNB),
22863 REGDEF(spsr_hyp,768|(14<<16)|SPSR_BIT,RNB),
22864 REGDEF(SPSR_hyp,768|(14<<16)|SPSR_BIT,RNB),
22866 /* FPA registers. */
22867 REGNUM(f,0,FN), REGNUM(f,1,FN), REGNUM(f,2,FN), REGNUM(f,3,FN),
22868 REGNUM(f,4,FN), REGNUM(f,5,FN), REGNUM(f,6,FN), REGNUM(f,7, FN),
22870 REGNUM(F,0,FN), REGNUM(F,1,FN), REGNUM(F,2,FN), REGNUM(F,3,FN),
22871 REGNUM(F,4,FN), REGNUM(F,5,FN), REGNUM(F,6,FN), REGNUM(F,7, FN),
22873 /* VFP SP registers. */
22874 REGSET(s,VFS), REGSET(S,VFS),
22875 REGSETH(s,VFS), REGSETH(S,VFS),
22877 /* VFP DP Registers. */
22878 REGSET(d,VFD), REGSET(D,VFD),
22879 /* Extra Neon DP registers. */
22880 REGSETH(d,VFD), REGSETH(D,VFD),
22882 /* Neon QP registers. */
22883 REGSET2(q,NQ), REGSET2(Q,NQ),
22885 /* VFP control registers. */
22886 REGDEF(fpsid,0,VFC), REGDEF(fpscr,1,VFC), REGDEF(fpexc,8,VFC),
22887 REGDEF(FPSID,0,VFC), REGDEF(FPSCR,1,VFC), REGDEF(FPEXC,8,VFC),
22888 REGDEF(fpinst,9,VFC), REGDEF(fpinst2,10,VFC),
22889 REGDEF(FPINST,9,VFC), REGDEF(FPINST2,10,VFC),
22890 REGDEF(mvfr0,7,VFC), REGDEF(mvfr1,6,VFC),
22891 REGDEF(MVFR0,7,VFC), REGDEF(MVFR1,6,VFC),
22892 REGDEF(mvfr2,5,VFC), REGDEF(MVFR2,5,VFC),
22893 REGDEF(fpscr_nzcvqc,2,VFC), REGDEF(FPSCR_nzcvqc,2,VFC),
22894 REGDEF(vpr,12,VFC), REGDEF(VPR,12,VFC),
22895 REGDEF(fpcxt_ns,14,VFC), REGDEF(FPCXT_NS,14,VFC),
22896 REGDEF(fpcxt_s,15,VFC), REGDEF(FPCXT_S,15,VFC),
22898 /* Maverick DSP coprocessor registers. */
22899 REGSET(mvf,MVF), REGSET(mvd,MVD), REGSET(mvfx,MVFX), REGSET(mvdx,MVDX),
22900 REGSET(MVF,MVF), REGSET(MVD,MVD), REGSET(MVFX,MVFX), REGSET(MVDX,MVDX),
22902 REGNUM(mvax,0,MVAX), REGNUM(mvax,1,MVAX),
22903 REGNUM(mvax,2,MVAX), REGNUM(mvax,3,MVAX),
22904 REGDEF(dspsc,0,DSPSC),
22906 REGNUM(MVAX,0,MVAX), REGNUM(MVAX,1,MVAX),
22907 REGNUM(MVAX,2,MVAX), REGNUM(MVAX,3,MVAX),
22908 REGDEF(DSPSC,0,DSPSC),
22910 /* iWMMXt data registers - p0, c0-15. */
22911 REGSET(wr,MMXWR), REGSET(wR,MMXWR), REGSET(WR, MMXWR),
22913 /* iWMMXt control registers - p1, c0-3. */
22914 REGDEF(wcid, 0,MMXWC), REGDEF(wCID, 0,MMXWC), REGDEF(WCID, 0,MMXWC),
22915 REGDEF(wcon, 1,MMXWC), REGDEF(wCon, 1,MMXWC), REGDEF(WCON, 1,MMXWC),
22916 REGDEF(wcssf, 2,MMXWC), REGDEF(wCSSF, 2,MMXWC), REGDEF(WCSSF, 2,MMXWC),
22917 REGDEF(wcasf, 3,MMXWC), REGDEF(wCASF, 3,MMXWC), REGDEF(WCASF, 3,MMXWC),
22919 /* iWMMXt scalar (constant/offset) registers - p1, c8-11. */
22920 REGDEF(wcgr0, 8,MMXWCG), REGDEF(wCGR0, 8,MMXWCG), REGDEF(WCGR0, 8,MMXWCG),
22921 REGDEF(wcgr1, 9,MMXWCG), REGDEF(wCGR1, 9,MMXWCG), REGDEF(WCGR1, 9,MMXWCG),
22922 REGDEF(wcgr2,10,MMXWCG), REGDEF(wCGR2,10,MMXWCG), REGDEF(WCGR2,10,MMXWCG),
22923 REGDEF(wcgr3,11,MMXWCG), REGDEF(wCGR3,11,MMXWCG), REGDEF(WCGR3,11,MMXWCG),
22925 /* XScale accumulator registers. */
22926 REGNUM(acc,0,XSCALE), REGNUM(ACC,0,XSCALE),
22932 /* Table of all PSR suffixes. Bare "CPSR" and "SPSR" are handled
22933 within psr_required_here. */
22934 static const struct asm_psr psrs[] =
22936 /* Backward compatibility notation. Note that "all" is no longer
22937 truly all possible PSR bits. */
22938 {"all", PSR_c | PSR_f},
22942 /* Individual flags. */
22948 /* Combinations of flags. */
22949 {"fs", PSR_f | PSR_s},
22950 {"fx", PSR_f | PSR_x},
22951 {"fc", PSR_f | PSR_c},
22952 {"sf", PSR_s | PSR_f},
22953 {"sx", PSR_s | PSR_x},
22954 {"sc", PSR_s | PSR_c},
22955 {"xf", PSR_x | PSR_f},
22956 {"xs", PSR_x | PSR_s},
22957 {"xc", PSR_x | PSR_c},
22958 {"cf", PSR_c | PSR_f},
22959 {"cs", PSR_c | PSR_s},
22960 {"cx", PSR_c | PSR_x},
22961 {"fsx", PSR_f | PSR_s | PSR_x},
22962 {"fsc", PSR_f | PSR_s | PSR_c},
22963 {"fxs", PSR_f | PSR_x | PSR_s},
22964 {"fxc", PSR_f | PSR_x | PSR_c},
22965 {"fcs", PSR_f | PSR_c | PSR_s},
22966 {"fcx", PSR_f | PSR_c | PSR_x},
22967 {"sfx", PSR_s | PSR_f | PSR_x},
22968 {"sfc", PSR_s | PSR_f | PSR_c},
22969 {"sxf", PSR_s | PSR_x | PSR_f},
22970 {"sxc", PSR_s | PSR_x | PSR_c},
22971 {"scf", PSR_s | PSR_c | PSR_f},
22972 {"scx", PSR_s | PSR_c | PSR_x},
22973 {"xfs", PSR_x | PSR_f | PSR_s},
22974 {"xfc", PSR_x | PSR_f | PSR_c},
22975 {"xsf", PSR_x | PSR_s | PSR_f},
22976 {"xsc", PSR_x | PSR_s | PSR_c},
22977 {"xcf", PSR_x | PSR_c | PSR_f},
22978 {"xcs", PSR_x | PSR_c | PSR_s},
22979 {"cfs", PSR_c | PSR_f | PSR_s},
22980 {"cfx", PSR_c | PSR_f | PSR_x},
22981 {"csf", PSR_c | PSR_s | PSR_f},
22982 {"csx", PSR_c | PSR_s | PSR_x},
22983 {"cxf", PSR_c | PSR_x | PSR_f},
22984 {"cxs", PSR_c | PSR_x | PSR_s},
22985 {"fsxc", PSR_f | PSR_s | PSR_x | PSR_c},
22986 {"fscx", PSR_f | PSR_s | PSR_c | PSR_x},
22987 {"fxsc", PSR_f | PSR_x | PSR_s | PSR_c},
22988 {"fxcs", PSR_f | PSR_x | PSR_c | PSR_s},
22989 {"fcsx", PSR_f | PSR_c | PSR_s | PSR_x},
22990 {"fcxs", PSR_f | PSR_c | PSR_x | PSR_s},
22991 {"sfxc", PSR_s | PSR_f | PSR_x | PSR_c},
22992 {"sfcx", PSR_s | PSR_f | PSR_c | PSR_x},
22993 {"sxfc", PSR_s | PSR_x | PSR_f | PSR_c},
22994 {"sxcf", PSR_s | PSR_x | PSR_c | PSR_f},
22995 {"scfx", PSR_s | PSR_c | PSR_f | PSR_x},
22996 {"scxf", PSR_s | PSR_c | PSR_x | PSR_f},
22997 {"xfsc", PSR_x | PSR_f | PSR_s | PSR_c},
22998 {"xfcs", PSR_x | PSR_f | PSR_c | PSR_s},
22999 {"xsfc", PSR_x | PSR_s | PSR_f | PSR_c},
23000 {"xscf", PSR_x | PSR_s | PSR_c | PSR_f},
23001 {"xcfs", PSR_x | PSR_c | PSR_f | PSR_s},
23002 {"xcsf", PSR_x | PSR_c | PSR_s | PSR_f},
23003 {"cfsx", PSR_c | PSR_f | PSR_s | PSR_x},
23004 {"cfxs", PSR_c | PSR_f | PSR_x | PSR_s},
23005 {"csfx", PSR_c | PSR_s | PSR_f | PSR_x},
23006 {"csxf", PSR_c | PSR_s | PSR_x | PSR_f},
23007 {"cxfs", PSR_c | PSR_x | PSR_f | PSR_s},
23008 {"cxsf", PSR_c | PSR_x | PSR_s | PSR_f},
23011 /* Table of V7M psr names. */
23012 static const struct asm_psr v7m_psrs[] =
23014 {"apsr", 0x0 }, {"APSR", 0x0 },
23015 {"iapsr", 0x1 }, {"IAPSR", 0x1 },
23016 {"eapsr", 0x2 }, {"EAPSR", 0x2 },
23017 {"psr", 0x3 }, {"PSR", 0x3 },
23018 {"xpsr", 0x3 }, {"XPSR", 0x3 }, {"xPSR", 3 },
23019 {"ipsr", 0x5 }, {"IPSR", 0x5 },
23020 {"epsr", 0x6 }, {"EPSR", 0x6 },
23021 {"iepsr", 0x7 }, {"IEPSR", 0x7 },
23022 {"msp", 0x8 }, {"MSP", 0x8 },
23023 {"psp", 0x9 }, {"PSP", 0x9 },
23024 {"msplim", 0xa }, {"MSPLIM", 0xa },
23025 {"psplim", 0xb }, {"PSPLIM", 0xb },
23026 {"primask", 0x10}, {"PRIMASK", 0x10},
23027 {"basepri", 0x11}, {"BASEPRI", 0x11},
23028 {"basepri_max", 0x12}, {"BASEPRI_MAX", 0x12},
23029 {"faultmask", 0x13}, {"FAULTMASK", 0x13},
23030 {"control", 0x14}, {"CONTROL", 0x14},
23031 {"msp_ns", 0x88}, {"MSP_NS", 0x88},
23032 {"psp_ns", 0x89}, {"PSP_NS", 0x89},
23033 {"msplim_ns", 0x8a}, {"MSPLIM_NS", 0x8a},
23034 {"psplim_ns", 0x8b}, {"PSPLIM_NS", 0x8b},
23035 {"primask_ns", 0x90}, {"PRIMASK_NS", 0x90},
23036 {"basepri_ns", 0x91}, {"BASEPRI_NS", 0x91},
23037 {"faultmask_ns", 0x93}, {"FAULTMASK_NS", 0x93},
23038 {"control_ns", 0x94}, {"CONTROL_NS", 0x94},
23039 {"sp_ns", 0x98}, {"SP_NS", 0x98 }
23042 /* Table of all shift-in-operand names. */
23043 static const struct asm_shift_name shift_names [] =
23045 { "asl", SHIFT_LSL }, { "ASL", SHIFT_LSL },
23046 { "lsl", SHIFT_LSL }, { "LSL", SHIFT_LSL },
23047 { "lsr", SHIFT_LSR }, { "LSR", SHIFT_LSR },
23048 { "asr", SHIFT_ASR }, { "ASR", SHIFT_ASR },
23049 { "ror", SHIFT_ROR }, { "ROR", SHIFT_ROR },
23050 { "rrx", SHIFT_RRX }, { "RRX", SHIFT_RRX },
23051 { "uxtw", SHIFT_UXTW}, { "UXTW", SHIFT_UXTW}
23054 /* Table of all explicit relocation names. */
23056 static struct reloc_entry reloc_names[] =
23058 { "got", BFD_RELOC_ARM_GOT32 }, { "GOT", BFD_RELOC_ARM_GOT32 },
23059 { "gotoff", BFD_RELOC_ARM_GOTOFF }, { "GOTOFF", BFD_RELOC_ARM_GOTOFF },
23060 { "plt", BFD_RELOC_ARM_PLT32 }, { "PLT", BFD_RELOC_ARM_PLT32 },
23061 { "target1", BFD_RELOC_ARM_TARGET1 }, { "TARGET1", BFD_RELOC_ARM_TARGET1 },
23062 { "target2", BFD_RELOC_ARM_TARGET2 }, { "TARGET2", BFD_RELOC_ARM_TARGET2 },
23063 { "sbrel", BFD_RELOC_ARM_SBREL32 }, { "SBREL", BFD_RELOC_ARM_SBREL32 },
23064 { "tlsgd", BFD_RELOC_ARM_TLS_GD32}, { "TLSGD", BFD_RELOC_ARM_TLS_GD32},
23065 { "tlsldm", BFD_RELOC_ARM_TLS_LDM32}, { "TLSLDM", BFD_RELOC_ARM_TLS_LDM32},
23066 { "tlsldo", BFD_RELOC_ARM_TLS_LDO32}, { "TLSLDO", BFD_RELOC_ARM_TLS_LDO32},
23067 { "gottpoff",BFD_RELOC_ARM_TLS_IE32}, { "GOTTPOFF",BFD_RELOC_ARM_TLS_IE32},
23068 { "tpoff", BFD_RELOC_ARM_TLS_LE32}, { "TPOFF", BFD_RELOC_ARM_TLS_LE32},
23069 { "got_prel", BFD_RELOC_ARM_GOT_PREL}, { "GOT_PREL", BFD_RELOC_ARM_GOT_PREL},
23070 { "tlsdesc", BFD_RELOC_ARM_TLS_GOTDESC},
23071 { "TLSDESC", BFD_RELOC_ARM_TLS_GOTDESC},
23072 { "tlscall", BFD_RELOC_ARM_TLS_CALL},
23073 { "TLSCALL", BFD_RELOC_ARM_TLS_CALL},
23074 { "tlsdescseq", BFD_RELOC_ARM_TLS_DESCSEQ},
23075 { "TLSDESCSEQ", BFD_RELOC_ARM_TLS_DESCSEQ},
23076 { "gotfuncdesc", BFD_RELOC_ARM_GOTFUNCDESC },
23077 { "GOTFUNCDESC", BFD_RELOC_ARM_GOTFUNCDESC },
23078 { "gotofffuncdesc", BFD_RELOC_ARM_GOTOFFFUNCDESC },
23079 { "GOTOFFFUNCDESC", BFD_RELOC_ARM_GOTOFFFUNCDESC },
23080 { "funcdesc", BFD_RELOC_ARM_FUNCDESC },
23081 { "FUNCDESC", BFD_RELOC_ARM_FUNCDESC },
23082 { "tlsgd_fdpic", BFD_RELOC_ARM_TLS_GD32_FDPIC }, { "TLSGD_FDPIC", BFD_RELOC_ARM_TLS_GD32_FDPIC },
23083 { "tlsldm_fdpic", BFD_RELOC_ARM_TLS_LDM32_FDPIC }, { "TLSLDM_FDPIC", BFD_RELOC_ARM_TLS_LDM32_FDPIC },
23084 { "gottpoff_fdpic", BFD_RELOC_ARM_TLS_IE32_FDPIC }, { "GOTTPOFF_FDIC", BFD_RELOC_ARM_TLS_IE32_FDPIC },
23088 /* Table of all conditional affixes. */
23089 static const struct asm_cond conds[] =
23093 {"cs", 0x2}, {"hs", 0x2},
23094 {"cc", 0x3}, {"ul", 0x3}, {"lo", 0x3},
23107 static const struct asm_cond vconds[] =
23113 #define UL_BARRIER(L,U,CODE,FEAT) \
23114 { L, CODE, ARM_FEATURE_CORE_LOW (FEAT) }, \
23115 { U, CODE, ARM_FEATURE_CORE_LOW (FEAT) }
23117 static struct asm_barrier_opt barrier_opt_names[] =
23119 UL_BARRIER ("sy", "SY", 0xf, ARM_EXT_BARRIER),
23120 UL_BARRIER ("st", "ST", 0xe, ARM_EXT_BARRIER),
23121 UL_BARRIER ("ld", "LD", 0xd, ARM_EXT_V8),
23122 UL_BARRIER ("ish", "ISH", 0xb, ARM_EXT_BARRIER),
23123 UL_BARRIER ("sh", "SH", 0xb, ARM_EXT_BARRIER),
23124 UL_BARRIER ("ishst", "ISHST", 0xa, ARM_EXT_BARRIER),
23125 UL_BARRIER ("shst", "SHST", 0xa, ARM_EXT_BARRIER),
23126 UL_BARRIER ("ishld", "ISHLD", 0x9, ARM_EXT_V8),
23127 UL_BARRIER ("un", "UN", 0x7, ARM_EXT_BARRIER),
23128 UL_BARRIER ("nsh", "NSH", 0x7, ARM_EXT_BARRIER),
23129 UL_BARRIER ("unst", "UNST", 0x6, ARM_EXT_BARRIER),
23130 UL_BARRIER ("nshst", "NSHST", 0x6, ARM_EXT_BARRIER),
23131 UL_BARRIER ("nshld", "NSHLD", 0x5, ARM_EXT_V8),
23132 UL_BARRIER ("osh", "OSH", 0x3, ARM_EXT_BARRIER),
23133 UL_BARRIER ("oshst", "OSHST", 0x2, ARM_EXT_BARRIER),
23134 UL_BARRIER ("oshld", "OSHLD", 0x1, ARM_EXT_V8)
23139 /* Table of ARM-format instructions. */
23141 /* Macros for gluing together operand strings. N.B. In all cases
23142 other than OPS0, the trailing OP_stop comes from default
23143 zero-initialization of the unspecified elements of the array. */
23144 #define OPS0() { OP_stop, }
23145 #define OPS1(a) { OP_##a, }
23146 #define OPS2(a,b) { OP_##a,OP_##b, }
23147 #define OPS3(a,b,c) { OP_##a,OP_##b,OP_##c, }
23148 #define OPS4(a,b,c,d) { OP_##a,OP_##b,OP_##c,OP_##d, }
23149 #define OPS5(a,b,c,d,e) { OP_##a,OP_##b,OP_##c,OP_##d,OP_##e, }
23150 #define OPS6(a,b,c,d,e,f) { OP_##a,OP_##b,OP_##c,OP_##d,OP_##e,OP_##f, }
23152 /* These macros are similar to the OPSn, but do not prepend the OP_ prefix.
23153 This is useful when mixing operands for ARM and THUMB, i.e. using the
23154 MIX_ARM_THUMB_OPERANDS macro.
23155 In order to use these macros, prefix the number of operands with _
23157 #define OPS_1(a) { a, }
23158 #define OPS_2(a,b) { a,b, }
23159 #define OPS_3(a,b,c) { a,b,c, }
23160 #define OPS_4(a,b,c,d) { a,b,c,d, }
23161 #define OPS_5(a,b,c,d,e) { a,b,c,d,e, }
23162 #define OPS_6(a,b,c,d,e,f) { a,b,c,d,e,f, }
23164 /* These macros abstract out the exact format of the mnemonic table and
23165 save some repeated characters. */
23167 /* The normal sort of mnemonic; has a Thumb variant; takes a conditional suffix. */
23168 #define TxCE(mnem, op, top, nops, ops, ae, te) \
23169 { mnem, OPS##nops ops, OT_csuffix, 0x##op, top, ARM_VARIANT, \
23170 THUMB_VARIANT, do_##ae, do_##te, 0 }
23172 /* Two variants of the above - TCE for a numeric Thumb opcode, tCE for
23173 a T_MNEM_xyz enumerator. */
23174 #define TCE(mnem, aop, top, nops, ops, ae, te) \
23175 TxCE (mnem, aop, 0x##top, nops, ops, ae, te)
23176 #define tCE(mnem, aop, top, nops, ops, ae, te) \
23177 TxCE (mnem, aop, T_MNEM##top, nops, ops, ae, te)
23179 /* Second most common sort of mnemonic: has a Thumb variant, takes a conditional
23180 infix after the third character. */
23181 #define TxC3(mnem, op, top, nops, ops, ae, te) \
23182 { mnem, OPS##nops ops, OT_cinfix3, 0x##op, top, ARM_VARIANT, \
23183 THUMB_VARIANT, do_##ae, do_##te, 0 }
23184 #define TxC3w(mnem, op, top, nops, ops, ae, te) \
23185 { mnem, OPS##nops ops, OT_cinfix3_deprecated, 0x##op, top, ARM_VARIANT, \
23186 THUMB_VARIANT, do_##ae, do_##te, 0 }
23187 #define TC3(mnem, aop, top, nops, ops, ae, te) \
23188 TxC3 (mnem, aop, 0x##top, nops, ops, ae, te)
23189 #define TC3w(mnem, aop, top, nops, ops, ae, te) \
23190 TxC3w (mnem, aop, 0x##top, nops, ops, ae, te)
23191 #define tC3(mnem, aop, top, nops, ops, ae, te) \
23192 TxC3 (mnem, aop, T_MNEM##top, nops, ops, ae, te)
23193 #define tC3w(mnem, aop, top, nops, ops, ae, te) \
23194 TxC3w (mnem, aop, T_MNEM##top, nops, ops, ae, te)
23196 /* Mnemonic that cannot be conditionalized. The ARM condition-code
23197 field is still 0xE. Many of the Thumb variants can be executed
23198 conditionally, so this is checked separately. */
23199 #define TUE(mnem, op, top, nops, ops, ae, te) \
23200 { mnem, OPS##nops ops, OT_unconditional, 0x##op, 0x##top, ARM_VARIANT, \
23201 THUMB_VARIANT, do_##ae, do_##te, 0 }
23203 /* Same as TUE but the encoding function for ARM and Thumb modes is the same.
23204 Used by mnemonics that have very minimal differences in the encoding for
23205 ARM and Thumb variants and can be handled in a common function. */
23206 #define TUEc(mnem, op, top, nops, ops, en) \
23207 { mnem, OPS##nops ops, OT_unconditional, 0x##op, 0x##top, ARM_VARIANT, \
23208 THUMB_VARIANT, do_##en, do_##en, 0 }
23210 /* Mnemonic that cannot be conditionalized, and bears 0xF in its ARM
23211 condition code field. */
23212 #define TUF(mnem, op, top, nops, ops, ae, te) \
23213 { mnem, OPS##nops ops, OT_unconditionalF, 0x##op, 0x##top, ARM_VARIANT, \
23214 THUMB_VARIANT, do_##ae, do_##te, 0 }
23216 /* ARM-only variants of all the above. */
23217 #define CE(mnem, op, nops, ops, ae) \
23218 { mnem, OPS##nops ops, OT_csuffix, 0x##op, 0x0, ARM_VARIANT, 0, do_##ae, NULL, 0 }
23220 #define C3(mnem, op, nops, ops, ae) \
23221 { #mnem, OPS##nops ops, OT_cinfix3, 0x##op, 0x0, ARM_VARIANT, 0, do_##ae, NULL, 0 }
23223 /* Thumb-only variants of TCE and TUE. */
23224 #define ToC(mnem, top, nops, ops, te) \
23225 { mnem, OPS##nops ops, OT_csuffix, 0x0, 0x##top, 0, THUMB_VARIANT, NULL, \
23228 #define ToU(mnem, top, nops, ops, te) \
23229 { mnem, OPS##nops ops, OT_unconditional, 0x0, 0x##top, 0, THUMB_VARIANT, \
23232 /* T_MNEM_xyz enumerator variants of ToC. */
23233 #define toC(mnem, top, nops, ops, te) \
23234 { mnem, OPS##nops ops, OT_csuffix, 0x0, T_MNEM##top, 0, THUMB_VARIANT, NULL, \
23237 /* T_MNEM_xyz enumerator variants of ToU. */
23238 #define toU(mnem, top, nops, ops, te) \
23239 { mnem, OPS##nops ops, OT_unconditional, 0x0, T_MNEM##top, 0, THUMB_VARIANT, \
23242 /* Legacy mnemonics that always have conditional infix after the third
23244 #define CL(mnem, op, nops, ops, ae) \
23245 { mnem, OPS##nops ops, OT_cinfix3_legacy, \
23246 0x##op, 0x0, ARM_VARIANT, 0, do_##ae, NULL, 0 }
23248 /* Coprocessor instructions. Isomorphic between Arm and Thumb-2. */
23249 #define cCE(mnem, op, nops, ops, ae) \
23250 { mnem, OPS##nops ops, OT_csuffix, 0x##op, 0xe##op, ARM_VARIANT, ARM_VARIANT, do_##ae, do_##ae, 0 }
23252 /* mov instructions that are shared between coprocessor and MVE. */
23253 #define mcCE(mnem, op, nops, ops, ae) \
23254 { #mnem, OPS##nops ops, OT_csuffix, 0x##op, 0xe##op, ARM_VARIANT, THUMB_VARIANT, do_##ae, do_##ae, 0 }
23256 /* Legacy coprocessor instructions where conditional infix and conditional
23257 suffix are ambiguous. For consistency this includes all FPA instructions,
23258 not just the potentially ambiguous ones. */
23259 #define cCL(mnem, op, nops, ops, ae) \
23260 { mnem, OPS##nops ops, OT_cinfix3_legacy, \
23261 0x##op, 0xe##op, ARM_VARIANT, ARM_VARIANT, do_##ae, do_##ae, 0 }
23263 /* Coprocessor, takes either a suffix or a position-3 infix
23264 (for an FPA corner case). */
23265 #define C3E(mnem, op, nops, ops, ae) \
23266 { mnem, OPS##nops ops, OT_csuf_or_in3, \
23267 0x##op, 0xe##op, ARM_VARIANT, ARM_VARIANT, do_##ae, do_##ae, 0 }
23269 #define xCM_(m1, m2, m3, op, nops, ops, ae) \
23270 { m1 #m2 m3, OPS##nops ops, \
23271 sizeof (#m2) == 1 ? OT_odd_infix_unc : OT_odd_infix_0 + sizeof (m1) - 1, \
23272 0x##op, 0x0, ARM_VARIANT, 0, do_##ae, NULL, 0 }
23274 #define CM(m1, m2, op, nops, ops, ae) \
23275 xCM_ (m1, , m2, op, nops, ops, ae), \
23276 xCM_ (m1, eq, m2, op, nops, ops, ae), \
23277 xCM_ (m1, ne, m2, op, nops, ops, ae), \
23278 xCM_ (m1, cs, m2, op, nops, ops, ae), \
23279 xCM_ (m1, hs, m2, op, nops, ops, ae), \
23280 xCM_ (m1, cc, m2, op, nops, ops, ae), \
23281 xCM_ (m1, ul, m2, op, nops, ops, ae), \
23282 xCM_ (m1, lo, m2, op, nops, ops, ae), \
23283 xCM_ (m1, mi, m2, op, nops, ops, ae), \
23284 xCM_ (m1, pl, m2, op, nops, ops, ae), \
23285 xCM_ (m1, vs, m2, op, nops, ops, ae), \
23286 xCM_ (m1, vc, m2, op, nops, ops, ae), \
23287 xCM_ (m1, hi, m2, op, nops, ops, ae), \
23288 xCM_ (m1, ls, m2, op, nops, ops, ae), \
23289 xCM_ (m1, ge, m2, op, nops, ops, ae), \
23290 xCM_ (m1, lt, m2, op, nops, ops, ae), \
23291 xCM_ (m1, gt, m2, op, nops, ops, ae), \
23292 xCM_ (m1, le, m2, op, nops, ops, ae), \
23293 xCM_ (m1, al, m2, op, nops, ops, ae)
23295 #define UE(mnem, op, nops, ops, ae) \
23296 { #mnem, OPS##nops ops, OT_unconditional, 0x##op, 0, ARM_VARIANT, 0, do_##ae, NULL, 0 }
23298 #define UF(mnem, op, nops, ops, ae) \
23299 { #mnem, OPS##nops ops, OT_unconditionalF, 0x##op, 0, ARM_VARIANT, 0, do_##ae, NULL, 0 }
23301 /* Neon data-processing. ARM versions are unconditional with cond=0xf.
23302 The Thumb and ARM variants are mostly the same (bits 0-23 and 24/28), so we
23303 use the same encoding function for each. */
23304 #define NUF(mnem, op, nops, ops, enc) \
23305 { #mnem, OPS##nops ops, OT_unconditionalF, 0x##op, 0x##op, \
23306 ARM_VARIANT, THUMB_VARIANT, do_##enc, do_##enc, 0 }
23308 /* Neon data processing, version which indirects through neon_enc_tab for
23309 the various overloaded versions of opcodes. */
23310 #define nUF(mnem, op, nops, ops, enc) \
23311 { #mnem, OPS##nops ops, OT_unconditionalF, N_MNEM##op, N_MNEM##op, \
23312 ARM_VARIANT, THUMB_VARIANT, do_##enc, do_##enc, 0 }
23314 /* Neon insn with conditional suffix for the ARM version, non-overloaded
23316 #define NCE_tag(mnem, op, nops, ops, enc, tag, mve_p) \
23317 { #mnem, OPS##nops ops, tag, 0x##op, 0x##op, ARM_VARIANT, \
23318 THUMB_VARIANT, do_##enc, do_##enc, mve_p }
23320 #define NCE(mnem, op, nops, ops, enc) \
23321 NCE_tag (mnem, op, nops, ops, enc, OT_csuffix, 0)
23323 #define NCEF(mnem, op, nops, ops, enc) \
23324 NCE_tag (mnem, op, nops, ops, enc, OT_csuffixF, 0)
23326 /* Neon insn with conditional suffix for the ARM version, overloaded types. */
23327 #define nCE_tag(mnem, op, nops, ops, enc, tag, mve_p) \
23328 { #mnem, OPS##nops ops, tag, N_MNEM##op, N_MNEM##op, \
23329 ARM_VARIANT, THUMB_VARIANT, do_##enc, do_##enc, mve_p }
23331 #define nCE(mnem, op, nops, ops, enc) \
23332 nCE_tag (mnem, op, nops, ops, enc, OT_csuffix, 0)
23334 #define nCEF(mnem, op, nops, ops, enc) \
23335 nCE_tag (mnem, op, nops, ops, enc, OT_csuffixF, 0)
23338 #define mCEF(mnem, op, nops, ops, enc) \
23339 { #mnem, OPS##nops ops, OT_csuffixF, M_MNEM##op, M_MNEM##op, \
23340 ARM_VARIANT, THUMB_VARIANT, do_##enc, do_##enc, 1 }
23343 /* nCEF but for MVE predicated instructions. */
23344 #define mnCEF(mnem, op, nops, ops, enc) \
23345 nCE_tag (mnem, op, nops, ops, enc, OT_csuffixF, 1)
23347 /* nCE but for MVE predicated instructions. */
23348 #define mnCE(mnem, op, nops, ops, enc) \
23349 nCE_tag (mnem, op, nops, ops, enc, OT_csuffix, 1)
23351 /* NUF but for potentially MVE predicated instructions. */
23352 #define MNUF(mnem, op, nops, ops, enc) \
23353 { #mnem, OPS##nops ops, OT_unconditionalF, 0x##op, 0x##op, \
23354 ARM_VARIANT, THUMB_VARIANT, do_##enc, do_##enc, 1 }
23356 /* nUF but for potentially MVE predicated instructions. */
23357 #define mnUF(mnem, op, nops, ops, enc) \
23358 { #mnem, OPS##nops ops, OT_unconditionalF, N_MNEM##op, N_MNEM##op, \
23359 ARM_VARIANT, THUMB_VARIANT, do_##enc, do_##enc, 1 }
23361 /* ToC but for potentially MVE predicated instructions. */
23362 #define mToC(mnem, top, nops, ops, te) \
23363 { mnem, OPS##nops ops, OT_csuffix, 0x0, 0x##top, 0, THUMB_VARIANT, NULL, \
23366 /* NCE but for MVE predicated instructions. */
23367 #define MNCE(mnem, op, nops, ops, enc) \
23368 NCE_tag (mnem, op, nops, ops, enc, OT_csuffix, 1)
23370 /* NCEF but for MVE predicated instructions. */
23371 #define MNCEF(mnem, op, nops, ops, enc) \
23372 NCE_tag (mnem, op, nops, ops, enc, OT_csuffixF, 1)
23375 static const struct asm_opcode insns[] =
23377 #define ARM_VARIANT & arm_ext_v1 /* Core ARM Instructions. */
23378 #define THUMB_VARIANT & arm_ext_v4t
23379 tCE("and", 0000000, _and, 3, (RR, oRR, SH), arit, t_arit3c),
23380 tC3("ands", 0100000, _ands, 3, (RR, oRR, SH), arit, t_arit3c),
23381 tCE("eor", 0200000, _eor, 3, (RR, oRR, SH), arit, t_arit3c),
23382 tC3("eors", 0300000, _eors, 3, (RR, oRR, SH), arit, t_arit3c),
23383 tCE("sub", 0400000, _sub, 3, (RR, oRR, SH), arit, t_add_sub),
23384 tC3("subs", 0500000, _subs, 3, (RR, oRR, SH), arit, t_add_sub),
23385 tCE("add", 0800000, _add, 3, (RR, oRR, SHG), arit, t_add_sub),
23386 tC3("adds", 0900000, _adds, 3, (RR, oRR, SHG), arit, t_add_sub),
23387 tCE("adc", 0a00000, _adc, 3, (RR, oRR, SH), arit, t_arit3c),
23388 tC3("adcs", 0b00000, _adcs, 3, (RR, oRR, SH), arit, t_arit3c),
23389 tCE("sbc", 0c00000, _sbc, 3, (RR, oRR, SH), arit, t_arit3),
23390 tC3("sbcs", 0d00000, _sbcs, 3, (RR, oRR, SH), arit, t_arit3),
23391 tCE("orr", 1800000, _orr, 3, (RR, oRR, SH), arit, t_arit3c),
23392 tC3("orrs", 1900000, _orrs, 3, (RR, oRR, SH), arit, t_arit3c),
23393 tCE("bic", 1c00000, _bic, 3, (RR, oRR, SH), arit, t_arit3),
23394 tC3("bics", 1d00000, _bics, 3, (RR, oRR, SH), arit, t_arit3),
23396 /* The p-variants of tst/cmp/cmn/teq (below) are the pre-V6 mechanism
23397 for setting PSR flag bits. They are obsolete in V6 and do not
23398 have Thumb equivalents. */
23399 tCE("tst", 1100000, _tst, 2, (RR, SH), cmp, t_mvn_tst),
23400 tC3w("tsts", 1100000, _tst, 2, (RR, SH), cmp, t_mvn_tst),
23401 CL("tstp", 110f000, 2, (RR, SH), cmp),
23402 tCE("cmp", 1500000, _cmp, 2, (RR, SH), cmp, t_mov_cmp),
23403 tC3w("cmps", 1500000, _cmp, 2, (RR, SH), cmp, t_mov_cmp),
23404 CL("cmpp", 150f000, 2, (RR, SH), cmp),
23405 tCE("cmn", 1700000, _cmn, 2, (RR, SH), cmp, t_mvn_tst),
23406 tC3w("cmns", 1700000, _cmn, 2, (RR, SH), cmp, t_mvn_tst),
23407 CL("cmnp", 170f000, 2, (RR, SH), cmp),
23409 tCE("mov", 1a00000, _mov, 2, (RR, SH), mov, t_mov_cmp),
23410 tC3("movs", 1b00000, _movs, 2, (RR, SHG), mov, t_mov_cmp),
23411 tCE("mvn", 1e00000, _mvn, 2, (RR, SH), mov, t_mvn_tst),
23412 tC3("mvns", 1f00000, _mvns, 2, (RR, SH), mov, t_mvn_tst),
23414 tCE("ldr", 4100000, _ldr, 2, (RR, ADDRGLDR),ldst, t_ldst),
23415 tC3("ldrb", 4500000, _ldrb, 2, (RRnpc_npcsp, ADDRGLDR),ldst, t_ldst),
23416 tCE("str", 4000000, _str, _2, (MIX_ARM_THUMB_OPERANDS (OP_RR,
23418 OP_ADDRGLDR),ldst, t_ldst),
23419 tC3("strb", 4400000, _strb, 2, (RRnpc_npcsp, ADDRGLDR),ldst, t_ldst),
23421 tCE("stm", 8800000, _stmia, 2, (RRw, REGLST), ldmstm, t_ldmstm),
23422 tC3("stmia", 8800000, _stmia, 2, (RRw, REGLST), ldmstm, t_ldmstm),
23423 tC3("stmea", 8800000, _stmia, 2, (RRw, REGLST), ldmstm, t_ldmstm),
23424 tCE("ldm", 8900000, _ldmia, 2, (RRw, REGLST), ldmstm, t_ldmstm),
23425 tC3("ldmia", 8900000, _ldmia, 2, (RRw, REGLST), ldmstm, t_ldmstm),
23426 tC3("ldmfd", 8900000, _ldmia, 2, (RRw, REGLST), ldmstm, t_ldmstm),
23428 tCE("b", a000000, _b, 1, (EXPr), branch, t_branch),
23429 TCE("bl", b000000, f000f800, 1, (EXPr), bl, t_branch23),
23432 tCE("adr", 28f0000, _adr, 2, (RR, EXP), adr, t_adr),
23433 C3(adrl, 28f0000, 2, (RR, EXP), adrl),
23434 tCE("nop", 1a00000, _nop, 1, (oI255c), nop, t_nop),
23435 tCE("udf", 7f000f0, _udf, 1, (oIffffb), bkpt, t_udf),
23437 /* Thumb-compatibility pseudo ops. */
23438 tCE("lsl", 1a00000, _lsl, 3, (RR, oRR, SH), shift, t_shift),
23439 tC3("lsls", 1b00000, _lsls, 3, (RR, oRR, SH), shift, t_shift),
23440 tCE("lsr", 1a00020, _lsr, 3, (RR, oRR, SH), shift, t_shift),
23441 tC3("lsrs", 1b00020, _lsrs, 3, (RR, oRR, SH), shift, t_shift),
23442 tCE("asr", 1a00040, _asr, 3, (RR, oRR, SH), shift, t_shift),
23443 tC3("asrs", 1b00040, _asrs, 3, (RR, oRR, SH), shift, t_shift),
23444 tCE("ror", 1a00060, _ror, 3, (RR, oRR, SH), shift, t_shift),
23445 tC3("rors", 1b00060, _rors, 3, (RR, oRR, SH), shift, t_shift),
23446 tCE("neg", 2600000, _neg, 2, (RR, RR), rd_rn, t_neg),
23447 tC3("negs", 2700000, _negs, 2, (RR, RR), rd_rn, t_neg),
23448 tCE("push", 92d0000, _push, 1, (REGLST), push_pop, t_push_pop),
23449 tCE("pop", 8bd0000, _pop, 1, (REGLST), push_pop, t_push_pop),
23451 /* These may simplify to neg. */
23452 TCE("rsb", 0600000, ebc00000, 3, (RR, oRR, SH), arit, t_rsb),
23453 TC3("rsbs", 0700000, ebd00000, 3, (RR, oRR, SH), arit, t_rsb),
23455 #undef THUMB_VARIANT
23456 #define THUMB_VARIANT & arm_ext_os
23458 TCE("swi", f000000, df00, 1, (EXPi), swi, t_swi),
23459 TCE("svc", f000000, df00, 1, (EXPi), swi, t_swi),
23461 #undef THUMB_VARIANT
23462 #define THUMB_VARIANT & arm_ext_v6
23464 TCE("cpy", 1a00000, 4600, 2, (RR, RR), rd_rm, t_cpy),
23466 /* V1 instructions with no Thumb analogue prior to V6T2. */
23467 #undef THUMB_VARIANT
23468 #define THUMB_VARIANT & arm_ext_v6t2
23470 TCE("teq", 1300000, ea900f00, 2, (RR, SH), cmp, t_mvn_tst),
23471 TC3w("teqs", 1300000, ea900f00, 2, (RR, SH), cmp, t_mvn_tst),
23472 CL("teqp", 130f000, 2, (RR, SH), cmp),
23474 TC3("ldrt", 4300000, f8500e00, 2, (RRnpc_npcsp, ADDR),ldstt, t_ldstt),
23475 TC3("ldrbt", 4700000, f8100e00, 2, (RRnpc_npcsp, ADDR),ldstt, t_ldstt),
23476 TC3("strt", 4200000, f8400e00, 2, (RR_npcsp, ADDR), ldstt, t_ldstt),
23477 TC3("strbt", 4600000, f8000e00, 2, (RRnpc_npcsp, ADDR),ldstt, t_ldstt),
23479 TC3("stmdb", 9000000, e9000000, 2, (RRw, REGLST), ldmstm, t_ldmstm),
23480 TC3("stmfd", 9000000, e9000000, 2, (RRw, REGLST), ldmstm, t_ldmstm),
23482 TC3("ldmdb", 9100000, e9100000, 2, (RRw, REGLST), ldmstm, t_ldmstm),
23483 TC3("ldmea", 9100000, e9100000, 2, (RRw, REGLST), ldmstm, t_ldmstm),
23485 /* V1 instructions with no Thumb analogue at all. */
23486 CE("rsc", 0e00000, 3, (RR, oRR, SH), arit),
23487 C3(rscs, 0f00000, 3, (RR, oRR, SH), arit),
23489 C3(stmib, 9800000, 2, (RRw, REGLST), ldmstm),
23490 C3(stmfa, 9800000, 2, (RRw, REGLST), ldmstm),
23491 C3(stmda, 8000000, 2, (RRw, REGLST), ldmstm),
23492 C3(stmed, 8000000, 2, (RRw, REGLST), ldmstm),
23493 C3(ldmib, 9900000, 2, (RRw, REGLST), ldmstm),
23494 C3(ldmed, 9900000, 2, (RRw, REGLST), ldmstm),
23495 C3(ldmda, 8100000, 2, (RRw, REGLST), ldmstm),
23496 C3(ldmfa, 8100000, 2, (RRw, REGLST), ldmstm),
23499 #define ARM_VARIANT & arm_ext_v2 /* ARM 2 - multiplies. */
23500 #undef THUMB_VARIANT
23501 #define THUMB_VARIANT & arm_ext_v4t
23503 tCE("mul", 0000090, _mul, 3, (RRnpc, RRnpc, oRR), mul, t_mul),
23504 tC3("muls", 0100090, _muls, 3, (RRnpc, RRnpc, oRR), mul, t_mul),
23506 #undef THUMB_VARIANT
23507 #define THUMB_VARIANT & arm_ext_v6t2
23509 TCE("mla", 0200090, fb000000, 4, (RRnpc, RRnpc, RRnpc, RRnpc), mlas, t_mla),
23510 C3(mlas, 0300090, 4, (RRnpc, RRnpc, RRnpc, RRnpc), mlas),
23512 /* Generic coprocessor instructions. */
23513 TCE("cdp", e000000, ee000000, 6, (RCP, I15b, RCN, RCN, RCN, oI7b), cdp, cdp),
23514 TCE("ldc", c100000, ec100000, 3, (RCP, RCN, ADDRGLDC), lstc, lstc),
23515 TC3("ldcl", c500000, ec500000, 3, (RCP, RCN, ADDRGLDC), lstc, lstc),
23516 TCE("stc", c000000, ec000000, 3, (RCP, RCN, ADDRGLDC), lstc, lstc),
23517 TC3("stcl", c400000, ec400000, 3, (RCP, RCN, ADDRGLDC), lstc, lstc),
23518 TCE("mcr", e000010, ee000010, 6, (RCP, I7b, RR, RCN, RCN, oI7b), co_reg, co_reg),
23519 TCE("mrc", e100010, ee100010, 6, (RCP, I7b, APSR_RR, RCN, RCN, oI7b), co_reg, co_reg),
23522 #define ARM_VARIANT & arm_ext_v2s /* ARM 3 - swp instructions. */
23524 CE("swp", 1000090, 3, (RRnpc, RRnpc, RRnpcb), rd_rm_rn),
23525 C3(swpb, 1400090, 3, (RRnpc, RRnpc, RRnpcb), rd_rm_rn),
23528 #define ARM_VARIANT & arm_ext_v3 /* ARM 6 Status register instructions. */
23529 #undef THUMB_VARIANT
23530 #define THUMB_VARIANT & arm_ext_msr
23532 TCE("mrs", 1000000, f3e08000, 2, (RRnpc, rPSR), mrs, t_mrs),
23533 TCE("msr", 120f000, f3808000, 2, (wPSR, RR_EXi), msr, t_msr),
23536 #define ARM_VARIANT & arm_ext_v3m /* ARM 7M long multiplies. */
23537 #undef THUMB_VARIANT
23538 #define THUMB_VARIANT & arm_ext_v6t2
23540 TCE("smull", 0c00090, fb800000, 4, (RRnpc, RRnpc, RRnpc, RRnpc), mull, t_mull),
23541 CM("smull","s", 0d00090, 4, (RRnpc, RRnpc, RRnpc, RRnpc), mull),
23542 TCE("umull", 0800090, fba00000, 4, (RRnpc, RRnpc, RRnpc, RRnpc), mull, t_mull),
23543 CM("umull","s", 0900090, 4, (RRnpc, RRnpc, RRnpc, RRnpc), mull),
23544 TCE("smlal", 0e00090, fbc00000, 4, (RRnpc, RRnpc, RRnpc, RRnpc), mull, t_mull),
23545 CM("smlal","s", 0f00090, 4, (RRnpc, RRnpc, RRnpc, RRnpc), mull),
23546 TCE("umlal", 0a00090, fbe00000, 4, (RRnpc, RRnpc, RRnpc, RRnpc), mull, t_mull),
23547 CM("umlal","s", 0b00090, 4, (RRnpc, RRnpc, RRnpc, RRnpc), mull),
23550 #define ARM_VARIANT & arm_ext_v4 /* ARM Architecture 4. */
23551 #undef THUMB_VARIANT
23552 #define THUMB_VARIANT & arm_ext_v4t
23554 tC3("ldrh", 01000b0, _ldrh, 2, (RRnpc_npcsp, ADDRGLDRS), ldstv4, t_ldst),
23555 tC3("strh", 00000b0, _strh, 2, (RRnpc_npcsp, ADDRGLDRS), ldstv4, t_ldst),
23556 tC3("ldrsh", 01000f0, _ldrsh, 2, (RRnpc_npcsp, ADDRGLDRS), ldstv4, t_ldst),
23557 tC3("ldrsb", 01000d0, _ldrsb, 2, (RRnpc_npcsp, ADDRGLDRS), ldstv4, t_ldst),
23558 tC3("ldsh", 01000f0, _ldrsh, 2, (RRnpc_npcsp, ADDRGLDRS), ldstv4, t_ldst),
23559 tC3("ldsb", 01000d0, _ldrsb, 2, (RRnpc_npcsp, ADDRGLDRS), ldstv4, t_ldst),
23562 #define ARM_VARIANT & arm_ext_v4t_5
23564 /* ARM Architecture 4T. */
23565 /* Note: bx (and blx) are required on V5, even if the processor does
23566 not support Thumb. */
23567 TCE("bx", 12fff10, 4700, 1, (RR), bx, t_bx),
23570 #define ARM_VARIANT & arm_ext_v5 /* ARM Architecture 5T. */
23571 #undef THUMB_VARIANT
23572 #define THUMB_VARIANT & arm_ext_v5t
23574 /* Note: blx has 2 variants; the .value coded here is for
23575 BLX(2). Only this variant has conditional execution. */
23576 TCE("blx", 12fff30, 4780, 1, (RR_EXr), blx, t_blx),
23577 TUE("bkpt", 1200070, be00, 1, (oIffffb), bkpt, t_bkpt),
23579 #undef THUMB_VARIANT
23580 #define THUMB_VARIANT & arm_ext_v6t2
23582 TCE("clz", 16f0f10, fab0f080, 2, (RRnpc, RRnpc), rd_rm, t_clz),
23583 TUF("ldc2", c100000, fc100000, 3, (RCP, RCN, ADDRGLDC), lstc, lstc),
23584 TUF("ldc2l", c500000, fc500000, 3, (RCP, RCN, ADDRGLDC), lstc, lstc),
23585 TUF("stc2", c000000, fc000000, 3, (RCP, RCN, ADDRGLDC), lstc, lstc),
23586 TUF("stc2l", c400000, fc400000, 3, (RCP, RCN, ADDRGLDC), lstc, lstc),
23587 TUF("cdp2", e000000, fe000000, 6, (RCP, I15b, RCN, RCN, RCN, oI7b), cdp, cdp),
23588 TUF("mcr2", e000010, fe000010, 6, (RCP, I7b, RR, RCN, RCN, oI7b), co_reg, co_reg),
23589 TUF("mrc2", e100010, fe100010, 6, (RCP, I7b, RR, RCN, RCN, oI7b), co_reg, co_reg),
23592 #define ARM_VARIANT & arm_ext_v5exp /* ARM Architecture 5TExP. */
23593 #undef THUMB_VARIANT
23594 #define THUMB_VARIANT & arm_ext_v5exp
23596 TCE("smlabb", 1000080, fb100000, 4, (RRnpc, RRnpc, RRnpc, RRnpc), smla, t_mla),
23597 TCE("smlatb", 10000a0, fb100020, 4, (RRnpc, RRnpc, RRnpc, RRnpc), smla, t_mla),
23598 TCE("smlabt", 10000c0, fb100010, 4, (RRnpc, RRnpc, RRnpc, RRnpc), smla, t_mla),
23599 TCE("smlatt", 10000e0, fb100030, 4, (RRnpc, RRnpc, RRnpc, RRnpc), smla, t_mla),
23601 TCE("smlawb", 1200080, fb300000, 4, (RRnpc, RRnpc, RRnpc, RRnpc), smla, t_mla),
23602 TCE("smlawt", 12000c0, fb300010, 4, (RRnpc, RRnpc, RRnpc, RRnpc), smla, t_mla),
23604 TCE("smlalbb", 1400080, fbc00080, 4, (RRnpc, RRnpc, RRnpc, RRnpc), smlal, t_mlal),
23605 TCE("smlaltb", 14000a0, fbc000a0, 4, (RRnpc, RRnpc, RRnpc, RRnpc), smlal, t_mlal),
23606 TCE("smlalbt", 14000c0, fbc00090, 4, (RRnpc, RRnpc, RRnpc, RRnpc), smlal, t_mlal),
23607 TCE("smlaltt", 14000e0, fbc000b0, 4, (RRnpc, RRnpc, RRnpc, RRnpc), smlal, t_mlal),
23609 TCE("smulbb", 1600080, fb10f000, 3, (RRnpc, RRnpc, RRnpc), smul, t_simd),
23610 TCE("smultb", 16000a0, fb10f020, 3, (RRnpc, RRnpc, RRnpc), smul, t_simd),
23611 TCE("smulbt", 16000c0, fb10f010, 3, (RRnpc, RRnpc, RRnpc), smul, t_simd),
23612 TCE("smultt", 16000e0, fb10f030, 3, (RRnpc, RRnpc, RRnpc), smul, t_simd),
23614 TCE("smulwb", 12000a0, fb30f000, 3, (RRnpc, RRnpc, RRnpc), smul, t_simd),
23615 TCE("smulwt", 12000e0, fb30f010, 3, (RRnpc, RRnpc, RRnpc), smul, t_simd),
23617 TCE("qadd", 1000050, fa80f080, 3, (RRnpc, RRnpc, RRnpc), rd_rm_rn, t_simd2),
23618 TCE("qdadd", 1400050, fa80f090, 3, (RRnpc, RRnpc, RRnpc), rd_rm_rn, t_simd2),
23619 TCE("qsub", 1200050, fa80f0a0, 3, (RRnpc, RRnpc, RRnpc), rd_rm_rn, t_simd2),
23620 TCE("qdsub", 1600050, fa80f0b0, 3, (RRnpc, RRnpc, RRnpc), rd_rm_rn, t_simd2),
23623 #define ARM_VARIANT & arm_ext_v5e /* ARM Architecture 5TE. */
23624 #undef THUMB_VARIANT
23625 #define THUMB_VARIANT & arm_ext_v6t2
23627 TUF("pld", 450f000, f810f000, 1, (ADDR), pld, t_pld),
23628 TC3("ldrd", 00000d0, e8500000, 3, (RRnpc_npcsp, oRRnpc_npcsp, ADDRGLDRS),
23630 TC3("strd", 00000f0, e8400000, 3, (RRnpc_npcsp, oRRnpc_npcsp,
23631 ADDRGLDRS), ldrd, t_ldstd),
23633 TCE("mcrr", c400000, ec400000, 5, (RCP, I15b, RRnpc, RRnpc, RCN), co_reg2c, co_reg2c),
23634 TCE("mrrc", c500000, ec500000, 5, (RCP, I15b, RRnpc, RRnpc, RCN), co_reg2c, co_reg2c),
23637 #define ARM_VARIANT & arm_ext_v5j /* ARM Architecture 5TEJ. */
23639 TCE("bxj", 12fff20, f3c08f00, 1, (RR), bxj, t_bxj),
23642 #define ARM_VARIANT & arm_ext_v6 /* ARM V6. */
23643 #undef THUMB_VARIANT
23644 #define THUMB_VARIANT & arm_ext_v6
23646 TUF("cpsie", 1080000, b660, 2, (CPSF, oI31b), cpsi, t_cpsi),
23647 TUF("cpsid", 10c0000, b670, 2, (CPSF, oI31b), cpsi, t_cpsi),
23648 tCE("rev", 6bf0f30, _rev, 2, (RRnpc, RRnpc), rd_rm, t_rev),
23649 tCE("rev16", 6bf0fb0, _rev16, 2, (RRnpc, RRnpc), rd_rm, t_rev),
23650 tCE("revsh", 6ff0fb0, _revsh, 2, (RRnpc, RRnpc), rd_rm, t_rev),
23651 tCE("sxth", 6bf0070, _sxth, 3, (RRnpc, RRnpc, oROR), sxth, t_sxth),
23652 tCE("uxth", 6ff0070, _uxth, 3, (RRnpc, RRnpc, oROR), sxth, t_sxth),
23653 tCE("sxtb", 6af0070, _sxtb, 3, (RRnpc, RRnpc, oROR), sxth, t_sxth),
23654 tCE("uxtb", 6ef0070, _uxtb, 3, (RRnpc, RRnpc, oROR), sxth, t_sxth),
23655 TUF("setend", 1010000, b650, 1, (ENDI), setend, t_setend),
23657 #undef THUMB_VARIANT
23658 #define THUMB_VARIANT & arm_ext_v6t2_v8m
23660 TCE("ldrex", 1900f9f, e8500f00, 2, (RRnpc_npcsp, ADDR), ldrex, t_ldrex),
23661 TCE("strex", 1800f90, e8400000, 3, (RRnpc_npcsp, RRnpc_npcsp, ADDR),
23663 #undef THUMB_VARIANT
23664 #define THUMB_VARIANT & arm_ext_v6t2
23666 TUF("mcrr2", c400000, fc400000, 5, (RCP, I15b, RRnpc, RRnpc, RCN), co_reg2c, co_reg2c),
23667 TUF("mrrc2", c500000, fc500000, 5, (RCP, I15b, RRnpc, RRnpc, RCN), co_reg2c, co_reg2c),
23669 TCE("ssat", 6a00010, f3000000, 4, (RRnpc, I32, RRnpc, oSHllar),ssat, t_ssat),
23670 TCE("usat", 6e00010, f3800000, 4, (RRnpc, I31, RRnpc, oSHllar),usat, t_usat),
23672 /* ARM V6 not included in V7M. */
23673 #undef THUMB_VARIANT
23674 #define THUMB_VARIANT & arm_ext_v6_notm
23675 TUF("rfeia", 8900a00, e990c000, 1, (RRw), rfe, rfe),
23676 TUF("rfe", 8900a00, e990c000, 1, (RRw), rfe, rfe),
23677 UF(rfeib, 9900a00, 1, (RRw), rfe),
23678 UF(rfeda, 8100a00, 1, (RRw), rfe),
23679 TUF("rfedb", 9100a00, e810c000, 1, (RRw), rfe, rfe),
23680 TUF("rfefd", 8900a00, e990c000, 1, (RRw), rfe, rfe),
23681 UF(rfefa, 8100a00, 1, (RRw), rfe),
23682 TUF("rfeea", 9100a00, e810c000, 1, (RRw), rfe, rfe),
23683 UF(rfeed, 9900a00, 1, (RRw), rfe),
23684 TUF("srsia", 8c00500, e980c000, 2, (oRRw, I31w), srs, srs),
23685 TUF("srs", 8c00500, e980c000, 2, (oRRw, I31w), srs, srs),
23686 TUF("srsea", 8c00500, e980c000, 2, (oRRw, I31w), srs, srs),
23687 UF(srsib, 9c00500, 2, (oRRw, I31w), srs),
23688 UF(srsfa, 9c00500, 2, (oRRw, I31w), srs),
23689 UF(srsda, 8400500, 2, (oRRw, I31w), srs),
23690 UF(srsed, 8400500, 2, (oRRw, I31w), srs),
23691 TUF("srsdb", 9400500, e800c000, 2, (oRRw, I31w), srs, srs),
23692 TUF("srsfd", 9400500, e800c000, 2, (oRRw, I31w), srs, srs),
23693 TUF("cps", 1020000, f3af8100, 1, (I31b), imm0, t_cps),
23695 /* ARM V6 not included in V7M (eg. integer SIMD). */
23696 #undef THUMB_VARIANT
23697 #define THUMB_VARIANT & arm_ext_v6_dsp
23698 TCE("pkhbt", 6800010, eac00000, 4, (RRnpc, RRnpc, RRnpc, oSHll), pkhbt, t_pkhbt),
23699 TCE("pkhtb", 6800050, eac00020, 4, (RRnpc, RRnpc, RRnpc, oSHar), pkhtb, t_pkhtb),
23700 TCE("qadd16", 6200f10, fa90f010, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23701 TCE("qadd8", 6200f90, fa80f010, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23702 TCE("qasx", 6200f30, faa0f010, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23703 /* Old name for QASX. */
23704 TCE("qaddsubx",6200f30, faa0f010, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23705 TCE("qsax", 6200f50, fae0f010, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23706 /* Old name for QSAX. */
23707 TCE("qsubaddx",6200f50, fae0f010, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23708 TCE("qsub16", 6200f70, fad0f010, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23709 TCE("qsub8", 6200ff0, fac0f010, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23710 TCE("sadd16", 6100f10, fa90f000, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23711 TCE("sadd8", 6100f90, fa80f000, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23712 TCE("sasx", 6100f30, faa0f000, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23713 /* Old name for SASX. */
23714 TCE("saddsubx",6100f30, faa0f000, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23715 TCE("shadd16", 6300f10, fa90f020, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23716 TCE("shadd8", 6300f90, fa80f020, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23717 TCE("shasx", 6300f30, faa0f020, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23718 /* Old name for SHASX. */
23719 TCE("shaddsubx", 6300f30, faa0f020, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23720 TCE("shsax", 6300f50, fae0f020, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23721 /* Old name for SHSAX. */
23722 TCE("shsubaddx", 6300f50, fae0f020, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23723 TCE("shsub16", 6300f70, fad0f020, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23724 TCE("shsub8", 6300ff0, fac0f020, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23725 TCE("ssax", 6100f50, fae0f000, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23726 /* Old name for SSAX. */
23727 TCE("ssubaddx",6100f50, fae0f000, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23728 TCE("ssub16", 6100f70, fad0f000, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23729 TCE("ssub8", 6100ff0, fac0f000, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23730 TCE("uadd16", 6500f10, fa90f040, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23731 TCE("uadd8", 6500f90, fa80f040, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23732 TCE("uasx", 6500f30, faa0f040, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23733 /* Old name for UASX. */
23734 TCE("uaddsubx",6500f30, faa0f040, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23735 TCE("uhadd16", 6700f10, fa90f060, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23736 TCE("uhadd8", 6700f90, fa80f060, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23737 TCE("uhasx", 6700f30, faa0f060, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23738 /* Old name for UHASX. */
23739 TCE("uhaddsubx", 6700f30, faa0f060, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23740 TCE("uhsax", 6700f50, fae0f060, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23741 /* Old name for UHSAX. */
23742 TCE("uhsubaddx", 6700f50, fae0f060, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23743 TCE("uhsub16", 6700f70, fad0f060, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23744 TCE("uhsub8", 6700ff0, fac0f060, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23745 TCE("uqadd16", 6600f10, fa90f050, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23746 TCE("uqadd8", 6600f90, fa80f050, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23747 TCE("uqasx", 6600f30, faa0f050, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23748 /* Old name for UQASX. */
23749 TCE("uqaddsubx", 6600f30, faa0f050, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23750 TCE("uqsax", 6600f50, fae0f050, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23751 /* Old name for UQSAX. */
23752 TCE("uqsubaddx", 6600f50, fae0f050, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23753 TCE("uqsub16", 6600f70, fad0f050, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23754 TCE("uqsub8", 6600ff0, fac0f050, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23755 TCE("usub16", 6500f70, fad0f040, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23756 TCE("usax", 6500f50, fae0f040, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23757 /* Old name for USAX. */
23758 TCE("usubaddx",6500f50, fae0f040, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23759 TCE("usub8", 6500ff0, fac0f040, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23760 TCE("sxtah", 6b00070, fa00f080, 4, (RRnpc, RRnpc, RRnpc, oROR), sxtah, t_sxtah),
23761 TCE("sxtab16", 6800070, fa20f080, 4, (RRnpc, RRnpc, RRnpc, oROR), sxtah, t_sxtah),
23762 TCE("sxtab", 6a00070, fa40f080, 4, (RRnpc, RRnpc, RRnpc, oROR), sxtah, t_sxtah),
23763 TCE("sxtb16", 68f0070, fa2ff080, 3, (RRnpc, RRnpc, oROR), sxth, t_sxth),
23764 TCE("uxtah", 6f00070, fa10f080, 4, (RRnpc, RRnpc, RRnpc, oROR), sxtah, t_sxtah),
23765 TCE("uxtab16", 6c00070, fa30f080, 4, (RRnpc, RRnpc, RRnpc, oROR), sxtah, t_sxtah),
23766 TCE("uxtab", 6e00070, fa50f080, 4, (RRnpc, RRnpc, RRnpc, oROR), sxtah, t_sxtah),
23767 TCE("uxtb16", 6cf0070, fa3ff080, 3, (RRnpc, RRnpc, oROR), sxth, t_sxth),
23768 TCE("sel", 6800fb0, faa0f080, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
23769 TCE("smlad", 7000010, fb200000, 4, (RRnpc, RRnpc, RRnpc, RRnpc),smla, t_mla),
23770 TCE("smladx", 7000030, fb200010, 4, (RRnpc, RRnpc, RRnpc, RRnpc),smla, t_mla),
23771 TCE("smlald", 7400010, fbc000c0, 4, (RRnpc, RRnpc, RRnpc, RRnpc),smlal,t_mlal),
23772 TCE("smlaldx", 7400030, fbc000d0, 4, (RRnpc, RRnpc, RRnpc, RRnpc),smlal,t_mlal),
23773 TCE("smlsd", 7000050, fb400000, 4, (RRnpc, RRnpc, RRnpc, RRnpc),smla, t_mla),
23774 TCE("smlsdx", 7000070, fb400010, 4, (RRnpc, RRnpc, RRnpc, RRnpc),smla, t_mla),
23775 TCE("smlsld", 7400050, fbd000c0, 4, (RRnpc, RRnpc, RRnpc, RRnpc),smlal,t_mlal),
23776 TCE("smlsldx", 7400070, fbd000d0, 4, (RRnpc, RRnpc, RRnpc, RRnpc),smlal,t_mlal),
23777 TCE("smmla", 7500010, fb500000, 4, (RRnpc, RRnpc, RRnpc, RRnpc),smla, t_mla),
23778 TCE("smmlar", 7500030, fb500010, 4, (RRnpc, RRnpc, RRnpc, RRnpc),smla, t_mla),
23779 TCE("smmls", 75000d0, fb600000, 4, (RRnpc, RRnpc, RRnpc, RRnpc),smla, t_mla),
23780 TCE("smmlsr", 75000f0, fb600010, 4, (RRnpc, RRnpc, RRnpc, RRnpc),smla, t_mla),
23781 TCE("smmul", 750f010, fb50f000, 3, (RRnpc, RRnpc, RRnpc), smul, t_simd),
23782 TCE("smmulr", 750f030, fb50f010, 3, (RRnpc, RRnpc, RRnpc), smul, t_simd),
23783 TCE("smuad", 700f010, fb20f000, 3, (RRnpc, RRnpc, RRnpc), smul, t_simd),
23784 TCE("smuadx", 700f030, fb20f010, 3, (RRnpc, RRnpc, RRnpc), smul, t_simd),
23785 TCE("smusd", 700f050, fb40f000, 3, (RRnpc, RRnpc, RRnpc), smul, t_simd),
23786 TCE("smusdx", 700f070, fb40f010, 3, (RRnpc, RRnpc, RRnpc), smul, t_simd),
23787 TCE("ssat16", 6a00f30, f3200000, 3, (RRnpc, I16, RRnpc), ssat16, t_ssat16),
23788 TCE("umaal", 0400090, fbe00060, 4, (RRnpc, RRnpc, RRnpc, RRnpc),smlal, t_mlal),
23789 TCE("usad8", 780f010, fb70f000, 3, (RRnpc, RRnpc, RRnpc), smul, t_simd),
23790 TCE("usada8", 7800010, fb700000, 4, (RRnpc, RRnpc, RRnpc, RRnpc),smla, t_mla),
23791 TCE("usat16", 6e00f30, f3a00000, 3, (RRnpc, I15, RRnpc), usat16, t_usat16),
23794 #define ARM_VARIANT & arm_ext_v6k_v6t2
23795 #undef THUMB_VARIANT
23796 #define THUMB_VARIANT & arm_ext_v6k_v6t2
23798 tCE("yield", 320f001, _yield, 0, (), noargs, t_hint),
23799 tCE("wfe", 320f002, _wfe, 0, (), noargs, t_hint),
23800 tCE("wfi", 320f003, _wfi, 0, (), noargs, t_hint),
23801 tCE("sev", 320f004, _sev, 0, (), noargs, t_hint),
23803 #undef THUMB_VARIANT
23804 #define THUMB_VARIANT & arm_ext_v6_notm
23805 TCE("ldrexd", 1b00f9f, e8d0007f, 3, (RRnpc_npcsp, oRRnpc_npcsp, RRnpcb),
23807 TCE("strexd", 1a00f90, e8c00070, 4, (RRnpc_npcsp, RRnpc_npcsp, oRRnpc_npcsp,
23808 RRnpcb), strexd, t_strexd),
23810 #undef THUMB_VARIANT
23811 #define THUMB_VARIANT & arm_ext_v6t2_v8m
23812 TCE("ldrexb", 1d00f9f, e8d00f4f, 2, (RRnpc_npcsp,RRnpcb),
23814 TCE("ldrexh", 1f00f9f, e8d00f5f, 2, (RRnpc_npcsp, RRnpcb),
23816 TCE("strexb", 1c00f90, e8c00f40, 3, (RRnpc_npcsp, RRnpc_npcsp, ADDR),
23818 TCE("strexh", 1e00f90, e8c00f50, 3, (RRnpc_npcsp, RRnpc_npcsp, ADDR),
23820 TUF("clrex", 57ff01f, f3bf8f2f, 0, (), noargs, noargs),
23823 #define ARM_VARIANT & arm_ext_sec
23824 #undef THUMB_VARIANT
23825 #define THUMB_VARIANT & arm_ext_sec
23827 TCE("smc", 1600070, f7f08000, 1, (EXPi), smc, t_smc),
23830 #define ARM_VARIANT & arm_ext_virt
23831 #undef THUMB_VARIANT
23832 #define THUMB_VARIANT & arm_ext_virt
23834 TCE("hvc", 1400070, f7e08000, 1, (EXPi), hvc, t_hvc),
23835 TCE("eret", 160006e, f3de8f00, 0, (), noargs, noargs),
23838 #define ARM_VARIANT & arm_ext_pan
23839 #undef THUMB_VARIANT
23840 #define THUMB_VARIANT & arm_ext_pan
23842 TUF("setpan", 1100000, b610, 1, (I7), setpan, t_setpan),
23845 #define ARM_VARIANT & arm_ext_v6t2
23846 #undef THUMB_VARIANT
23847 #define THUMB_VARIANT & arm_ext_v6t2
23849 TCE("bfc", 7c0001f, f36f0000, 3, (RRnpc, I31, I32), bfc, t_bfc),
23850 TCE("bfi", 7c00010, f3600000, 4, (RRnpc, RRnpc_I0, I31, I32), bfi, t_bfi),
23851 TCE("sbfx", 7a00050, f3400000, 4, (RR, RR, I31, I32), bfx, t_bfx),
23852 TCE("ubfx", 7e00050, f3c00000, 4, (RR, RR, I31, I32), bfx, t_bfx),
23854 TCE("mls", 0600090, fb000010, 4, (RRnpc, RRnpc, RRnpc, RRnpc), mlas, t_mla),
23855 TCE("rbit", 6ff0f30, fa90f0a0, 2, (RR, RR), rd_rm, t_rbit),
23857 TC3("ldrht", 03000b0, f8300e00, 2, (RRnpc_npcsp, ADDR), ldsttv4, t_ldstt),
23858 TC3("ldrsht", 03000f0, f9300e00, 2, (RRnpc_npcsp, ADDR), ldsttv4, t_ldstt),
23859 TC3("ldrsbt", 03000d0, f9100e00, 2, (RRnpc_npcsp, ADDR), ldsttv4, t_ldstt),
23860 TC3("strht", 02000b0, f8200e00, 2, (RRnpc_npcsp, ADDR), ldsttv4, t_ldstt),
23863 #define ARM_VARIANT & arm_ext_v3
23864 #undef THUMB_VARIANT
23865 #define THUMB_VARIANT & arm_ext_v6t2
23867 TUE("csdb", 320f014, f3af8014, 0, (), noargs, t_csdb),
23868 TUF("ssbb", 57ff040, f3bf8f40, 0, (), noargs, t_csdb),
23869 TUF("pssbb", 57ff044, f3bf8f44, 0, (), noargs, t_csdb),
23872 #define ARM_VARIANT & arm_ext_v6t2
23873 #undef THUMB_VARIANT
23874 #define THUMB_VARIANT & arm_ext_v6t2_v8m
23875 TCE("movw", 3000000, f2400000, 2, (RRnpc, HALF), mov16, t_mov16),
23876 TCE("movt", 3400000, f2c00000, 2, (RRnpc, HALF), mov16, t_mov16),
23878 /* Thumb-only instructions. */
23880 #define ARM_VARIANT NULL
23881 TUE("cbnz", 0, b900, 2, (RR, EXP), 0, t_cbz),
23882 TUE("cbz", 0, b100, 2, (RR, EXP), 0, t_cbz),
23884 /* ARM does not really have an IT instruction, so always allow it.
23885 The opcode is copied from Thumb in order to allow warnings in
23886 -mimplicit-it=[never | arm] modes. */
23888 #define ARM_VARIANT & arm_ext_v1
23889 #undef THUMB_VARIANT
23890 #define THUMB_VARIANT & arm_ext_v6t2
23892 TUE("it", bf08, bf08, 1, (COND), it, t_it),
23893 TUE("itt", bf0c, bf0c, 1, (COND), it, t_it),
23894 TUE("ite", bf04, bf04, 1, (COND), it, t_it),
23895 TUE("ittt", bf0e, bf0e, 1, (COND), it, t_it),
23896 TUE("itet", bf06, bf06, 1, (COND), it, t_it),
23897 TUE("itte", bf0a, bf0a, 1, (COND), it, t_it),
23898 TUE("itee", bf02, bf02, 1, (COND), it, t_it),
23899 TUE("itttt", bf0f, bf0f, 1, (COND), it, t_it),
23900 TUE("itett", bf07, bf07, 1, (COND), it, t_it),
23901 TUE("ittet", bf0b, bf0b, 1, (COND), it, t_it),
23902 TUE("iteet", bf03, bf03, 1, (COND), it, t_it),
23903 TUE("ittte", bf0d, bf0d, 1, (COND), it, t_it),
23904 TUE("itete", bf05, bf05, 1, (COND), it, t_it),
23905 TUE("ittee", bf09, bf09, 1, (COND), it, t_it),
23906 TUE("iteee", bf01, bf01, 1, (COND), it, t_it),
23907 /* ARM/Thumb-2 instructions with no Thumb-1 equivalent. */
23908 TC3("rrx", 01a00060, ea4f0030, 2, (RR, RR), rd_rm, t_rrx),
23909 TC3("rrxs", 01b00060, ea5f0030, 2, (RR, RR), rd_rm, t_rrx),
23911 /* Thumb2 only instructions. */
23913 #define ARM_VARIANT NULL
23915 TCE("addw", 0, f2000000, 3, (RR, RR, EXPi), 0, t_add_sub_w),
23916 TCE("subw", 0, f2a00000, 3, (RR, RR, EXPi), 0, t_add_sub_w),
23917 TCE("orn", 0, ea600000, 3, (RR, oRR, SH), 0, t_orn),
23918 TCE("orns", 0, ea700000, 3, (RR, oRR, SH), 0, t_orn),
23919 TCE("tbb", 0, e8d0f000, 1, (TB), 0, t_tb),
23920 TCE("tbh", 0, e8d0f010, 1, (TB), 0, t_tb),
23922 /* Hardware division instructions. */
23924 #define ARM_VARIANT & arm_ext_adiv
23925 #undef THUMB_VARIANT
23926 #define THUMB_VARIANT & arm_ext_div
23928 TCE("sdiv", 710f010, fb90f0f0, 3, (RR, oRR, RR), div, t_div),
23929 TCE("udiv", 730f010, fbb0f0f0, 3, (RR, oRR, RR), div, t_div),
23931 /* ARM V6M/V7 instructions. */
23933 #define ARM_VARIANT & arm_ext_barrier
23934 #undef THUMB_VARIANT
23935 #define THUMB_VARIANT & arm_ext_barrier
23937 TUF("dmb", 57ff050, f3bf8f50, 1, (oBARRIER_I15), barrier, barrier),
23938 TUF("dsb", 57ff040, f3bf8f40, 1, (oBARRIER_I15), barrier, barrier),
23939 TUF("isb", 57ff060, f3bf8f60, 1, (oBARRIER_I15), barrier, barrier),
23941 /* ARM V7 instructions. */
23943 #define ARM_VARIANT & arm_ext_v7
23944 #undef THUMB_VARIANT
23945 #define THUMB_VARIANT & arm_ext_v7
23947 TUF("pli", 450f000, f910f000, 1, (ADDR), pli, t_pld),
23948 TCE("dbg", 320f0f0, f3af80f0, 1, (I15), dbg, t_dbg),
23951 #define ARM_VARIANT & arm_ext_mp
23952 #undef THUMB_VARIANT
23953 #define THUMB_VARIANT & arm_ext_mp
23955 TUF("pldw", 410f000, f830f000, 1, (ADDR), pld, t_pld),
23957 /* AArchv8 instructions. */
23959 #define ARM_VARIANT & arm_ext_v8
23961 /* Instructions shared between armv8-a and armv8-m. */
23962 #undef THUMB_VARIANT
23963 #define THUMB_VARIANT & arm_ext_atomics
23965 TCE("lda", 1900c9f, e8d00faf, 2, (RRnpc, RRnpcb), rd_rn, rd_rn),
23966 TCE("ldab", 1d00c9f, e8d00f8f, 2, (RRnpc, RRnpcb), rd_rn, rd_rn),
23967 TCE("ldah", 1f00c9f, e8d00f9f, 2, (RRnpc, RRnpcb), rd_rn, rd_rn),
23968 TCE("stl", 180fc90, e8c00faf, 2, (RRnpc, RRnpcb), rm_rn, rd_rn),
23969 TCE("stlb", 1c0fc90, e8c00f8f, 2, (RRnpc, RRnpcb), rm_rn, rd_rn),
23970 TCE("stlh", 1e0fc90, e8c00f9f, 2, (RRnpc, RRnpcb), rm_rn, rd_rn),
23971 TCE("ldaex", 1900e9f, e8d00fef, 2, (RRnpc, RRnpcb), rd_rn, rd_rn),
23972 TCE("ldaexb", 1d00e9f, e8d00fcf, 2, (RRnpc,RRnpcb), rd_rn, rd_rn),
23973 TCE("ldaexh", 1f00e9f, e8d00fdf, 2, (RRnpc, RRnpcb), rd_rn, rd_rn),
23974 TCE("stlex", 1800e90, e8c00fe0, 3, (RRnpc, RRnpc, RRnpcb),
23976 TCE("stlexb", 1c00e90, e8c00fc0, 3, (RRnpc, RRnpc, RRnpcb),
23978 TCE("stlexh", 1e00e90, e8c00fd0, 3, (RRnpc, RRnpc, RRnpcb),
23980 #undef THUMB_VARIANT
23981 #define THUMB_VARIANT & arm_ext_v8
23983 tCE("sevl", 320f005, _sevl, 0, (), noargs, t_hint),
23984 TCE("ldaexd", 1b00e9f, e8d000ff, 3, (RRnpc, oRRnpc, RRnpcb),
23986 TCE("stlexd", 1a00e90, e8c000f0, 4, (RRnpc, RRnpc, oRRnpc, RRnpcb),
23989 /* Defined in V8 but is in undefined encoding space for earlier
23990 architectures. However earlier architectures are required to treat
23991 this instuction as a semihosting trap as well. Hence while not explicitly
23992 defined as such, it is in fact correct to define the instruction for all
23994 #undef THUMB_VARIANT
23995 #define THUMB_VARIANT & arm_ext_v1
23997 #define ARM_VARIANT & arm_ext_v1
23998 TUE("hlt", 1000070, ba80, 1, (oIffffb), bkpt, t_hlt),
24000 /* ARMv8 T32 only. */
24002 #define ARM_VARIANT NULL
24003 TUF("dcps1", 0, f78f8001, 0, (), noargs, noargs),
24004 TUF("dcps2", 0, f78f8002, 0, (), noargs, noargs),
24005 TUF("dcps3", 0, f78f8003, 0, (), noargs, noargs),
24007 /* FP for ARMv8. */
24009 #define ARM_VARIANT & fpu_vfp_ext_armv8xd
24010 #undef THUMB_VARIANT
24011 #define THUMB_VARIANT & fpu_vfp_ext_armv8xd
24013 nUF(vseleq, _vseleq, 3, (RVSD, RVSD, RVSD), vsel),
24014 nUF(vselvs, _vselvs, 3, (RVSD, RVSD, RVSD), vsel),
24015 nUF(vselge, _vselge, 3, (RVSD, RVSD, RVSD), vsel),
24016 nUF(vselgt, _vselgt, 3, (RVSD, RVSD, RVSD), vsel),
24017 nCE(vrintr, _vrintr, 2, (RNSDQ, oRNSDQ), vrintr),
24018 mnCE(vrintz, _vrintr, 2, (RNSDQMQ, oRNSDQMQ), vrintz),
24019 mnCE(vrintx, _vrintr, 2, (RNSDQMQ, oRNSDQMQ), vrintx),
24020 mnUF(vrinta, _vrinta, 2, (RNSDQMQ, oRNSDQMQ), vrinta),
24021 mnUF(vrintn, _vrinta, 2, (RNSDQMQ, oRNSDQMQ), vrintn),
24022 mnUF(vrintp, _vrinta, 2, (RNSDQMQ, oRNSDQMQ), vrintp),
24023 mnUF(vrintm, _vrinta, 2, (RNSDQMQ, oRNSDQMQ), vrintm),
24025 /* Crypto v1 extensions. */
24027 #define ARM_VARIANT & fpu_crypto_ext_armv8
24028 #undef THUMB_VARIANT
24029 #define THUMB_VARIANT & fpu_crypto_ext_armv8
24031 nUF(aese, _aes, 2, (RNQ, RNQ), aese),
24032 nUF(aesd, _aes, 2, (RNQ, RNQ), aesd),
24033 nUF(aesmc, _aes, 2, (RNQ, RNQ), aesmc),
24034 nUF(aesimc, _aes, 2, (RNQ, RNQ), aesimc),
24035 nUF(sha1c, _sha3op, 3, (RNQ, RNQ, RNQ), sha1c),
24036 nUF(sha1p, _sha3op, 3, (RNQ, RNQ, RNQ), sha1p),
24037 nUF(sha1m, _sha3op, 3, (RNQ, RNQ, RNQ), sha1m),
24038 nUF(sha1su0, _sha3op, 3, (RNQ, RNQ, RNQ), sha1su0),
24039 nUF(sha256h, _sha3op, 3, (RNQ, RNQ, RNQ), sha256h),
24040 nUF(sha256h2, _sha3op, 3, (RNQ, RNQ, RNQ), sha256h2),
24041 nUF(sha256su1, _sha3op, 3, (RNQ, RNQ, RNQ), sha256su1),
24042 nUF(sha1h, _sha1h, 2, (RNQ, RNQ), sha1h),
24043 nUF(sha1su1, _sha2op, 2, (RNQ, RNQ), sha1su1),
24044 nUF(sha256su0, _sha2op, 2, (RNQ, RNQ), sha256su0),
24047 #define ARM_VARIANT & crc_ext_armv8
24048 #undef THUMB_VARIANT
24049 #define THUMB_VARIANT & crc_ext_armv8
24050 TUEc("crc32b", 1000040, fac0f080, 3, (RR, oRR, RR), crc32b),
24051 TUEc("crc32h", 1200040, fac0f090, 3, (RR, oRR, RR), crc32h),
24052 TUEc("crc32w", 1400040, fac0f0a0, 3, (RR, oRR, RR), crc32w),
24053 TUEc("crc32cb",1000240, fad0f080, 3, (RR, oRR, RR), crc32cb),
24054 TUEc("crc32ch",1200240, fad0f090, 3, (RR, oRR, RR), crc32ch),
24055 TUEc("crc32cw",1400240, fad0f0a0, 3, (RR, oRR, RR), crc32cw),
24057 /* ARMv8.2 RAS extension. */
24059 #define ARM_VARIANT & arm_ext_ras
24060 #undef THUMB_VARIANT
24061 #define THUMB_VARIANT & arm_ext_ras
24062 TUE ("esb", 320f010, f3af8010, 0, (), noargs, noargs),
24065 #define ARM_VARIANT & arm_ext_v8_3
24066 #undef THUMB_VARIANT
24067 #define THUMB_VARIANT & arm_ext_v8_3
24068 NCE (vjcvt, eb90bc0, 2, (RVS, RVD), vjcvt),
24071 #define ARM_VARIANT & fpu_neon_ext_dotprod
24072 #undef THUMB_VARIANT
24073 #define THUMB_VARIANT & fpu_neon_ext_dotprod
24074 NUF (vsdot, d00, 3, (RNDQ, RNDQ, RNDQ_RNSC), neon_dotproduct_s),
24075 NUF (vudot, d00, 3, (RNDQ, RNDQ, RNDQ_RNSC), neon_dotproduct_u),
24078 #define ARM_VARIANT & fpu_fpa_ext_v1 /* Core FPA instruction set (V1). */
24079 #undef THUMB_VARIANT
24080 #define THUMB_VARIANT NULL
24082 cCE("wfs", e200110, 1, (RR), rd),
24083 cCE("rfs", e300110, 1, (RR), rd),
24084 cCE("wfc", e400110, 1, (RR), rd),
24085 cCE("rfc", e500110, 1, (RR), rd),
24087 cCL("ldfs", c100100, 2, (RF, ADDRGLDC), rd_cpaddr),
24088 cCL("ldfd", c108100, 2, (RF, ADDRGLDC), rd_cpaddr),
24089 cCL("ldfe", c500100, 2, (RF, ADDRGLDC), rd_cpaddr),
24090 cCL("ldfp", c508100, 2, (RF, ADDRGLDC), rd_cpaddr),
24092 cCL("stfs", c000100, 2, (RF, ADDRGLDC), rd_cpaddr),
24093 cCL("stfd", c008100, 2, (RF, ADDRGLDC), rd_cpaddr),
24094 cCL("stfe", c400100, 2, (RF, ADDRGLDC), rd_cpaddr),
24095 cCL("stfp", c408100, 2, (RF, ADDRGLDC), rd_cpaddr),
24097 cCL("mvfs", e008100, 2, (RF, RF_IF), rd_rm),
24098 cCL("mvfsp", e008120, 2, (RF, RF_IF), rd_rm),
24099 cCL("mvfsm", e008140, 2, (RF, RF_IF), rd_rm),
24100 cCL("mvfsz", e008160, 2, (RF, RF_IF), rd_rm),
24101 cCL("mvfd", e008180, 2, (RF, RF_IF), rd_rm),
24102 cCL("mvfdp", e0081a0, 2, (RF, RF_IF), rd_rm),
24103 cCL("mvfdm", e0081c0, 2, (RF, RF_IF), rd_rm),
24104 cCL("mvfdz", e0081e0, 2, (RF, RF_IF), rd_rm),
24105 cCL("mvfe", e088100, 2, (RF, RF_IF), rd_rm),
24106 cCL("mvfep", e088120, 2, (RF, RF_IF), rd_rm),
24107 cCL("mvfem", e088140, 2, (RF, RF_IF), rd_rm),
24108 cCL("mvfez", e088160, 2, (RF, RF_IF), rd_rm),
24110 cCL("mnfs", e108100, 2, (RF, RF_IF), rd_rm),
24111 cCL("mnfsp", e108120, 2, (RF, RF_IF), rd_rm),
24112 cCL("mnfsm", e108140, 2, (RF, RF_IF), rd_rm),
24113 cCL("mnfsz", e108160, 2, (RF, RF_IF), rd_rm),
24114 cCL("mnfd", e108180, 2, (RF, RF_IF), rd_rm),
24115 cCL("mnfdp", e1081a0, 2, (RF, RF_IF), rd_rm),
24116 cCL("mnfdm", e1081c0, 2, (RF, RF_IF), rd_rm),
24117 cCL("mnfdz", e1081e0, 2, (RF, RF_IF), rd_rm),
24118 cCL("mnfe", e188100, 2, (RF, RF_IF), rd_rm),
24119 cCL("mnfep", e188120, 2, (RF, RF_IF), rd_rm),
24120 cCL("mnfem", e188140, 2, (RF, RF_IF), rd_rm),
24121 cCL("mnfez", e188160, 2, (RF, RF_IF), rd_rm),
24123 cCL("abss", e208100, 2, (RF, RF_IF), rd_rm),
24124 cCL("abssp", e208120, 2, (RF, RF_IF), rd_rm),
24125 cCL("abssm", e208140, 2, (RF, RF_IF), rd_rm),
24126 cCL("abssz", e208160, 2, (RF, RF_IF), rd_rm),
24127 cCL("absd", e208180, 2, (RF, RF_IF), rd_rm),
24128 cCL("absdp", e2081a0, 2, (RF, RF_IF), rd_rm),
24129 cCL("absdm", e2081c0, 2, (RF, RF_IF), rd_rm),
24130 cCL("absdz", e2081e0, 2, (RF, RF_IF), rd_rm),
24131 cCL("abse", e288100, 2, (RF, RF_IF), rd_rm),
24132 cCL("absep", e288120, 2, (RF, RF_IF), rd_rm),
24133 cCL("absem", e288140, 2, (RF, RF_IF), rd_rm),
24134 cCL("absez", e288160, 2, (RF, RF_IF), rd_rm),
24136 cCL("rnds", e308100, 2, (RF, RF_IF), rd_rm),
24137 cCL("rndsp", e308120, 2, (RF, RF_IF), rd_rm),
24138 cCL("rndsm", e308140, 2, (RF, RF_IF), rd_rm),
24139 cCL("rndsz", e308160, 2, (RF, RF_IF), rd_rm),
24140 cCL("rndd", e308180, 2, (RF, RF_IF), rd_rm),
24141 cCL("rnddp", e3081a0, 2, (RF, RF_IF), rd_rm),
24142 cCL("rnddm", e3081c0, 2, (RF, RF_IF), rd_rm),
24143 cCL("rnddz", e3081e0, 2, (RF, RF_IF), rd_rm),
24144 cCL("rnde", e388100, 2, (RF, RF_IF), rd_rm),
24145 cCL("rndep", e388120, 2, (RF, RF_IF), rd_rm),
24146 cCL("rndem", e388140, 2, (RF, RF_IF), rd_rm),
24147 cCL("rndez", e388160, 2, (RF, RF_IF), rd_rm),
24149 cCL("sqts", e408100, 2, (RF, RF_IF), rd_rm),
24150 cCL("sqtsp", e408120, 2, (RF, RF_IF), rd_rm),
24151 cCL("sqtsm", e408140, 2, (RF, RF_IF), rd_rm),
24152 cCL("sqtsz", e408160, 2, (RF, RF_IF), rd_rm),
24153 cCL("sqtd", e408180, 2, (RF, RF_IF), rd_rm),
24154 cCL("sqtdp", e4081a0, 2, (RF, RF_IF), rd_rm),
24155 cCL("sqtdm", e4081c0, 2, (RF, RF_IF), rd_rm),
24156 cCL("sqtdz", e4081e0, 2, (RF, RF_IF), rd_rm),
24157 cCL("sqte", e488100, 2, (RF, RF_IF), rd_rm),
24158 cCL("sqtep", e488120, 2, (RF, RF_IF), rd_rm),
24159 cCL("sqtem", e488140, 2, (RF, RF_IF), rd_rm),
24160 cCL("sqtez", e488160, 2, (RF, RF_IF), rd_rm),
24162 cCL("logs", e508100, 2, (RF, RF_IF), rd_rm),
24163 cCL("logsp", e508120, 2, (RF, RF_IF), rd_rm),
24164 cCL("logsm", e508140, 2, (RF, RF_IF), rd_rm),
24165 cCL("logsz", e508160, 2, (RF, RF_IF), rd_rm),
24166 cCL("logd", e508180, 2, (RF, RF_IF), rd_rm),
24167 cCL("logdp", e5081a0, 2, (RF, RF_IF), rd_rm),
24168 cCL("logdm", e5081c0, 2, (RF, RF_IF), rd_rm),
24169 cCL("logdz", e5081e0, 2, (RF, RF_IF), rd_rm),
24170 cCL("loge", e588100, 2, (RF, RF_IF), rd_rm),
24171 cCL("logep", e588120, 2, (RF, RF_IF), rd_rm),
24172 cCL("logem", e588140, 2, (RF, RF_IF), rd_rm),
24173 cCL("logez", e588160, 2, (RF, RF_IF), rd_rm),
24175 cCL("lgns", e608100, 2, (RF, RF_IF), rd_rm),
24176 cCL("lgnsp", e608120, 2, (RF, RF_IF), rd_rm),
24177 cCL("lgnsm", e608140, 2, (RF, RF_IF), rd_rm),
24178 cCL("lgnsz", e608160, 2, (RF, RF_IF), rd_rm),
24179 cCL("lgnd", e608180, 2, (RF, RF_IF), rd_rm),
24180 cCL("lgndp", e6081a0, 2, (RF, RF_IF), rd_rm),
24181 cCL("lgndm", e6081c0, 2, (RF, RF_IF), rd_rm),
24182 cCL("lgndz", e6081e0, 2, (RF, RF_IF), rd_rm),
24183 cCL("lgne", e688100, 2, (RF, RF_IF), rd_rm),
24184 cCL("lgnep", e688120, 2, (RF, RF_IF), rd_rm),
24185 cCL("lgnem", e688140, 2, (RF, RF_IF), rd_rm),
24186 cCL("lgnez", e688160, 2, (RF, RF_IF), rd_rm),
24188 cCL("exps", e708100, 2, (RF, RF_IF), rd_rm),
24189 cCL("expsp", e708120, 2, (RF, RF_IF), rd_rm),
24190 cCL("expsm", e708140, 2, (RF, RF_IF), rd_rm),
24191 cCL("expsz", e708160, 2, (RF, RF_IF), rd_rm),
24192 cCL("expd", e708180, 2, (RF, RF_IF), rd_rm),
24193 cCL("expdp", e7081a0, 2, (RF, RF_IF), rd_rm),
24194 cCL("expdm", e7081c0, 2, (RF, RF_IF), rd_rm),
24195 cCL("expdz", e7081e0, 2, (RF, RF_IF), rd_rm),
24196 cCL("expe", e788100, 2, (RF, RF_IF), rd_rm),
24197 cCL("expep", e788120, 2, (RF, RF_IF), rd_rm),
24198 cCL("expem", e788140, 2, (RF, RF_IF), rd_rm),
24199 cCL("expdz", e788160, 2, (RF, RF_IF), rd_rm),
24201 cCL("sins", e808100, 2, (RF, RF_IF), rd_rm),
24202 cCL("sinsp", e808120, 2, (RF, RF_IF), rd_rm),
24203 cCL("sinsm", e808140, 2, (RF, RF_IF), rd_rm),
24204 cCL("sinsz", e808160, 2, (RF, RF_IF), rd_rm),
24205 cCL("sind", e808180, 2, (RF, RF_IF), rd_rm),
24206 cCL("sindp", e8081a0, 2, (RF, RF_IF), rd_rm),
24207 cCL("sindm", e8081c0, 2, (RF, RF_IF), rd_rm),
24208 cCL("sindz", e8081e0, 2, (RF, RF_IF), rd_rm),
24209 cCL("sine", e888100, 2, (RF, RF_IF), rd_rm),
24210 cCL("sinep", e888120, 2, (RF, RF_IF), rd_rm),
24211 cCL("sinem", e888140, 2, (RF, RF_IF), rd_rm),
24212 cCL("sinez", e888160, 2, (RF, RF_IF), rd_rm),
24214 cCL("coss", e908100, 2, (RF, RF_IF), rd_rm),
24215 cCL("cossp", e908120, 2, (RF, RF_IF), rd_rm),
24216 cCL("cossm", e908140, 2, (RF, RF_IF), rd_rm),
24217 cCL("cossz", e908160, 2, (RF, RF_IF), rd_rm),
24218 cCL("cosd", e908180, 2, (RF, RF_IF), rd_rm),
24219 cCL("cosdp", e9081a0, 2, (RF, RF_IF), rd_rm),
24220 cCL("cosdm", e9081c0, 2, (RF, RF_IF), rd_rm),
24221 cCL("cosdz", e9081e0, 2, (RF, RF_IF), rd_rm),
24222 cCL("cose", e988100, 2, (RF, RF_IF), rd_rm),
24223 cCL("cosep", e988120, 2, (RF, RF_IF), rd_rm),
24224 cCL("cosem", e988140, 2, (RF, RF_IF), rd_rm),
24225 cCL("cosez", e988160, 2, (RF, RF_IF), rd_rm),
24227 cCL("tans", ea08100, 2, (RF, RF_IF), rd_rm),
24228 cCL("tansp", ea08120, 2, (RF, RF_IF), rd_rm),
24229 cCL("tansm", ea08140, 2, (RF, RF_IF), rd_rm),
24230 cCL("tansz", ea08160, 2, (RF, RF_IF), rd_rm),
24231 cCL("tand", ea08180, 2, (RF, RF_IF), rd_rm),
24232 cCL("tandp", ea081a0, 2, (RF, RF_IF), rd_rm),
24233 cCL("tandm", ea081c0, 2, (RF, RF_IF), rd_rm),
24234 cCL("tandz", ea081e0, 2, (RF, RF_IF), rd_rm),
24235 cCL("tane", ea88100, 2, (RF, RF_IF), rd_rm),
24236 cCL("tanep", ea88120, 2, (RF, RF_IF), rd_rm),
24237 cCL("tanem", ea88140, 2, (RF, RF_IF), rd_rm),
24238 cCL("tanez", ea88160, 2, (RF, RF_IF), rd_rm),
24240 cCL("asns", eb08100, 2, (RF, RF_IF), rd_rm),
24241 cCL("asnsp", eb08120, 2, (RF, RF_IF), rd_rm),
24242 cCL("asnsm", eb08140, 2, (RF, RF_IF), rd_rm),
24243 cCL("asnsz", eb08160, 2, (RF, RF_IF), rd_rm),
24244 cCL("asnd", eb08180, 2, (RF, RF_IF), rd_rm),
24245 cCL("asndp", eb081a0, 2, (RF, RF_IF), rd_rm),
24246 cCL("asndm", eb081c0, 2, (RF, RF_IF), rd_rm),
24247 cCL("asndz", eb081e0, 2, (RF, RF_IF), rd_rm),
24248 cCL("asne", eb88100, 2, (RF, RF_IF), rd_rm),
24249 cCL("asnep", eb88120, 2, (RF, RF_IF), rd_rm),
24250 cCL("asnem", eb88140, 2, (RF, RF_IF), rd_rm),
24251 cCL("asnez", eb88160, 2, (RF, RF_IF), rd_rm),
24253 cCL("acss", ec08100, 2, (RF, RF_IF), rd_rm),
24254 cCL("acssp", ec08120, 2, (RF, RF_IF), rd_rm),
24255 cCL("acssm", ec08140, 2, (RF, RF_IF), rd_rm),
24256 cCL("acssz", ec08160, 2, (RF, RF_IF), rd_rm),
24257 cCL("acsd", ec08180, 2, (RF, RF_IF), rd_rm),
24258 cCL("acsdp", ec081a0, 2, (RF, RF_IF), rd_rm),
24259 cCL("acsdm", ec081c0, 2, (RF, RF_IF), rd_rm),
24260 cCL("acsdz", ec081e0, 2, (RF, RF_IF), rd_rm),
24261 cCL("acse", ec88100, 2, (RF, RF_IF), rd_rm),
24262 cCL("acsep", ec88120, 2, (RF, RF_IF), rd_rm),
24263 cCL("acsem", ec88140, 2, (RF, RF_IF), rd_rm),
24264 cCL("acsez", ec88160, 2, (RF, RF_IF), rd_rm),
24266 cCL("atns", ed08100, 2, (RF, RF_IF), rd_rm),
24267 cCL("atnsp", ed08120, 2, (RF, RF_IF), rd_rm),
24268 cCL("atnsm", ed08140, 2, (RF, RF_IF), rd_rm),
24269 cCL("atnsz", ed08160, 2, (RF, RF_IF), rd_rm),
24270 cCL("atnd", ed08180, 2, (RF, RF_IF), rd_rm),
24271 cCL("atndp", ed081a0, 2, (RF, RF_IF), rd_rm),
24272 cCL("atndm", ed081c0, 2, (RF, RF_IF), rd_rm),
24273 cCL("atndz", ed081e0, 2, (RF, RF_IF), rd_rm),
24274 cCL("atne", ed88100, 2, (RF, RF_IF), rd_rm),
24275 cCL("atnep", ed88120, 2, (RF, RF_IF), rd_rm),
24276 cCL("atnem", ed88140, 2, (RF, RF_IF), rd_rm),
24277 cCL("atnez", ed88160, 2, (RF, RF_IF), rd_rm),
24279 cCL("urds", ee08100, 2, (RF, RF_IF), rd_rm),
24280 cCL("urdsp", ee08120, 2, (RF, RF_IF), rd_rm),
24281 cCL("urdsm", ee08140, 2, (RF, RF_IF), rd_rm),
24282 cCL("urdsz", ee08160, 2, (RF, RF_IF), rd_rm),
24283 cCL("urdd", ee08180, 2, (RF, RF_IF), rd_rm),
24284 cCL("urddp", ee081a0, 2, (RF, RF_IF), rd_rm),
24285 cCL("urddm", ee081c0, 2, (RF, RF_IF), rd_rm),
24286 cCL("urddz", ee081e0, 2, (RF, RF_IF), rd_rm),
24287 cCL("urde", ee88100, 2, (RF, RF_IF), rd_rm),
24288 cCL("urdep", ee88120, 2, (RF, RF_IF), rd_rm),
24289 cCL("urdem", ee88140, 2, (RF, RF_IF), rd_rm),
24290 cCL("urdez", ee88160, 2, (RF, RF_IF), rd_rm),
24292 cCL("nrms", ef08100, 2, (RF, RF_IF), rd_rm),
24293 cCL("nrmsp", ef08120, 2, (RF, RF_IF), rd_rm),
24294 cCL("nrmsm", ef08140, 2, (RF, RF_IF), rd_rm),
24295 cCL("nrmsz", ef08160, 2, (RF, RF_IF), rd_rm),
24296 cCL("nrmd", ef08180, 2, (RF, RF_IF), rd_rm),
24297 cCL("nrmdp", ef081a0, 2, (RF, RF_IF), rd_rm),
24298 cCL("nrmdm", ef081c0, 2, (RF, RF_IF), rd_rm),
24299 cCL("nrmdz", ef081e0, 2, (RF, RF_IF), rd_rm),
24300 cCL("nrme", ef88100, 2, (RF, RF_IF), rd_rm),
24301 cCL("nrmep", ef88120, 2, (RF, RF_IF), rd_rm),
24302 cCL("nrmem", ef88140, 2, (RF, RF_IF), rd_rm),
24303 cCL("nrmez", ef88160, 2, (RF, RF_IF), rd_rm),
24305 cCL("adfs", e000100, 3, (RF, RF, RF_IF), rd_rn_rm),
24306 cCL("adfsp", e000120, 3, (RF, RF, RF_IF), rd_rn_rm),
24307 cCL("adfsm", e000140, 3, (RF, RF, RF_IF), rd_rn_rm),
24308 cCL("adfsz", e000160, 3, (RF, RF, RF_IF), rd_rn_rm),
24309 cCL("adfd", e000180, 3, (RF, RF, RF_IF), rd_rn_rm),
24310 cCL("adfdp", e0001a0, 3, (RF, RF, RF_IF), rd_rn_rm),
24311 cCL("adfdm", e0001c0, 3, (RF, RF, RF_IF), rd_rn_rm),
24312 cCL("adfdz", e0001e0, 3, (RF, RF, RF_IF), rd_rn_rm),
24313 cCL("adfe", e080100, 3, (RF, RF, RF_IF), rd_rn_rm),
24314 cCL("adfep", e080120, 3, (RF, RF, RF_IF), rd_rn_rm),
24315 cCL("adfem", e080140, 3, (RF, RF, RF_IF), rd_rn_rm),
24316 cCL("adfez", e080160, 3, (RF, RF, RF_IF), rd_rn_rm),
24318 cCL("sufs", e200100, 3, (RF, RF, RF_IF), rd_rn_rm),
24319 cCL("sufsp", e200120, 3, (RF, RF, RF_IF), rd_rn_rm),
24320 cCL("sufsm", e200140, 3, (RF, RF, RF_IF), rd_rn_rm),
24321 cCL("sufsz", e200160, 3, (RF, RF, RF_IF), rd_rn_rm),
24322 cCL("sufd", e200180, 3, (RF, RF, RF_IF), rd_rn_rm),
24323 cCL("sufdp", e2001a0, 3, (RF, RF, RF_IF), rd_rn_rm),
24324 cCL("sufdm", e2001c0, 3, (RF, RF, RF_IF), rd_rn_rm),
24325 cCL("sufdz", e2001e0, 3, (RF, RF, RF_IF), rd_rn_rm),
24326 cCL("sufe", e280100, 3, (RF, RF, RF_IF), rd_rn_rm),
24327 cCL("sufep", e280120, 3, (RF, RF, RF_IF), rd_rn_rm),
24328 cCL("sufem", e280140, 3, (RF, RF, RF_IF), rd_rn_rm),
24329 cCL("sufez", e280160, 3, (RF, RF, RF_IF), rd_rn_rm),
24331 cCL("rsfs", e300100, 3, (RF, RF, RF_IF), rd_rn_rm),
24332 cCL("rsfsp", e300120, 3, (RF, RF, RF_IF), rd_rn_rm),
24333 cCL("rsfsm", e300140, 3, (RF, RF, RF_IF), rd_rn_rm),
24334 cCL("rsfsz", e300160, 3, (RF, RF, RF_IF), rd_rn_rm),
24335 cCL("rsfd", e300180, 3, (RF, RF, RF_IF), rd_rn_rm),
24336 cCL("rsfdp", e3001a0, 3, (RF, RF, RF_IF), rd_rn_rm),
24337 cCL("rsfdm", e3001c0, 3, (RF, RF, RF_IF), rd_rn_rm),
24338 cCL("rsfdz", e3001e0, 3, (RF, RF, RF_IF), rd_rn_rm),
24339 cCL("rsfe", e380100, 3, (RF, RF, RF_IF), rd_rn_rm),
24340 cCL("rsfep", e380120, 3, (RF, RF, RF_IF), rd_rn_rm),
24341 cCL("rsfem", e380140, 3, (RF, RF, RF_IF), rd_rn_rm),
24342 cCL("rsfez", e380160, 3, (RF, RF, RF_IF), rd_rn_rm),
24344 cCL("mufs", e100100, 3, (RF, RF, RF_IF), rd_rn_rm),
24345 cCL("mufsp", e100120, 3, (RF, RF, RF_IF), rd_rn_rm),
24346 cCL("mufsm", e100140, 3, (RF, RF, RF_IF), rd_rn_rm),
24347 cCL("mufsz", e100160, 3, (RF, RF, RF_IF), rd_rn_rm),
24348 cCL("mufd", e100180, 3, (RF, RF, RF_IF), rd_rn_rm),
24349 cCL("mufdp", e1001a0, 3, (RF, RF, RF_IF), rd_rn_rm),
24350 cCL("mufdm", e1001c0, 3, (RF, RF, RF_IF), rd_rn_rm),
24351 cCL("mufdz", e1001e0, 3, (RF, RF, RF_IF), rd_rn_rm),
24352 cCL("mufe", e180100, 3, (RF, RF, RF_IF), rd_rn_rm),
24353 cCL("mufep", e180120, 3, (RF, RF, RF_IF), rd_rn_rm),
24354 cCL("mufem", e180140, 3, (RF, RF, RF_IF), rd_rn_rm),
24355 cCL("mufez", e180160, 3, (RF, RF, RF_IF), rd_rn_rm),
24357 cCL("dvfs", e400100, 3, (RF, RF, RF_IF), rd_rn_rm),
24358 cCL("dvfsp", e400120, 3, (RF, RF, RF_IF), rd_rn_rm),
24359 cCL("dvfsm", e400140, 3, (RF, RF, RF_IF), rd_rn_rm),
24360 cCL("dvfsz", e400160, 3, (RF, RF, RF_IF), rd_rn_rm),
24361 cCL("dvfd", e400180, 3, (RF, RF, RF_IF), rd_rn_rm),
24362 cCL("dvfdp", e4001a0, 3, (RF, RF, RF_IF), rd_rn_rm),
24363 cCL("dvfdm", e4001c0, 3, (RF, RF, RF_IF), rd_rn_rm),
24364 cCL("dvfdz", e4001e0, 3, (RF, RF, RF_IF), rd_rn_rm),
24365 cCL("dvfe", e480100, 3, (RF, RF, RF_IF), rd_rn_rm),
24366 cCL("dvfep", e480120, 3, (RF, RF, RF_IF), rd_rn_rm),
24367 cCL("dvfem", e480140, 3, (RF, RF, RF_IF), rd_rn_rm),
24368 cCL("dvfez", e480160, 3, (RF, RF, RF_IF), rd_rn_rm),
24370 cCL("rdfs", e500100, 3, (RF, RF, RF_IF), rd_rn_rm),
24371 cCL("rdfsp", e500120, 3, (RF, RF, RF_IF), rd_rn_rm),
24372 cCL("rdfsm", e500140, 3, (RF, RF, RF_IF), rd_rn_rm),
24373 cCL("rdfsz", e500160, 3, (RF, RF, RF_IF), rd_rn_rm),
24374 cCL("rdfd", e500180, 3, (RF, RF, RF_IF), rd_rn_rm),
24375 cCL("rdfdp", e5001a0, 3, (RF, RF, RF_IF), rd_rn_rm),
24376 cCL("rdfdm", e5001c0, 3, (RF, RF, RF_IF), rd_rn_rm),
24377 cCL("rdfdz", e5001e0, 3, (RF, RF, RF_IF), rd_rn_rm),
24378 cCL("rdfe", e580100, 3, (RF, RF, RF_IF), rd_rn_rm),
24379 cCL("rdfep", e580120, 3, (RF, RF, RF_IF), rd_rn_rm),
24380 cCL("rdfem", e580140, 3, (RF, RF, RF_IF), rd_rn_rm),
24381 cCL("rdfez", e580160, 3, (RF, RF, RF_IF), rd_rn_rm),
24383 cCL("pows", e600100, 3, (RF, RF, RF_IF), rd_rn_rm),
24384 cCL("powsp", e600120, 3, (RF, RF, RF_IF), rd_rn_rm),
24385 cCL("powsm", e600140, 3, (RF, RF, RF_IF), rd_rn_rm),
24386 cCL("powsz", e600160, 3, (RF, RF, RF_IF), rd_rn_rm),
24387 cCL("powd", e600180, 3, (RF, RF, RF_IF), rd_rn_rm),
24388 cCL("powdp", e6001a0, 3, (RF, RF, RF_IF), rd_rn_rm),
24389 cCL("powdm", e6001c0, 3, (RF, RF, RF_IF), rd_rn_rm),
24390 cCL("powdz", e6001e0, 3, (RF, RF, RF_IF), rd_rn_rm),
24391 cCL("powe", e680100, 3, (RF, RF, RF_IF), rd_rn_rm),
24392 cCL("powep", e680120, 3, (RF, RF, RF_IF), rd_rn_rm),
24393 cCL("powem", e680140, 3, (RF, RF, RF_IF), rd_rn_rm),
24394 cCL("powez", e680160, 3, (RF, RF, RF_IF), rd_rn_rm),
24396 cCL("rpws", e700100, 3, (RF, RF, RF_IF), rd_rn_rm),
24397 cCL("rpwsp", e700120, 3, (RF, RF, RF_IF), rd_rn_rm),
24398 cCL("rpwsm", e700140, 3, (RF, RF, RF_IF), rd_rn_rm),
24399 cCL("rpwsz", e700160, 3, (RF, RF, RF_IF), rd_rn_rm),
24400 cCL("rpwd", e700180, 3, (RF, RF, RF_IF), rd_rn_rm),
24401 cCL("rpwdp", e7001a0, 3, (RF, RF, RF_IF), rd_rn_rm),
24402 cCL("rpwdm", e7001c0, 3, (RF, RF, RF_IF), rd_rn_rm),
24403 cCL("rpwdz", e7001e0, 3, (RF, RF, RF_IF), rd_rn_rm),
24404 cCL("rpwe", e780100, 3, (RF, RF, RF_IF), rd_rn_rm),
24405 cCL("rpwep", e780120, 3, (RF, RF, RF_IF), rd_rn_rm),
24406 cCL("rpwem", e780140, 3, (RF, RF, RF_IF), rd_rn_rm),
24407 cCL("rpwez", e780160, 3, (RF, RF, RF_IF), rd_rn_rm),
24409 cCL("rmfs", e800100, 3, (RF, RF, RF_IF), rd_rn_rm),
24410 cCL("rmfsp", e800120, 3, (RF, RF, RF_IF), rd_rn_rm),
24411 cCL("rmfsm", e800140, 3, (RF, RF, RF_IF), rd_rn_rm),
24412 cCL("rmfsz", e800160, 3, (RF, RF, RF_IF), rd_rn_rm),
24413 cCL("rmfd", e800180, 3, (RF, RF, RF_IF), rd_rn_rm),
24414 cCL("rmfdp", e8001a0, 3, (RF, RF, RF_IF), rd_rn_rm),
24415 cCL("rmfdm", e8001c0, 3, (RF, RF, RF_IF), rd_rn_rm),
24416 cCL("rmfdz", e8001e0, 3, (RF, RF, RF_IF), rd_rn_rm),
24417 cCL("rmfe", e880100, 3, (RF, RF, RF_IF), rd_rn_rm),
24418 cCL("rmfep", e880120, 3, (RF, RF, RF_IF), rd_rn_rm),
24419 cCL("rmfem", e880140, 3, (RF, RF, RF_IF), rd_rn_rm),
24420 cCL("rmfez", e880160, 3, (RF, RF, RF_IF), rd_rn_rm),
24422 cCL("fmls", e900100, 3, (RF, RF, RF_IF), rd_rn_rm),
24423 cCL("fmlsp", e900120, 3, (RF, RF, RF_IF), rd_rn_rm),
24424 cCL("fmlsm", e900140, 3, (RF, RF, RF_IF), rd_rn_rm),
24425 cCL("fmlsz", e900160, 3, (RF, RF, RF_IF), rd_rn_rm),
24426 cCL("fmld", e900180, 3, (RF, RF, RF_IF), rd_rn_rm),
24427 cCL("fmldp", e9001a0, 3, (RF, RF, RF_IF), rd_rn_rm),
24428 cCL("fmldm", e9001c0, 3, (RF, RF, RF_IF), rd_rn_rm),
24429 cCL("fmldz", e9001e0, 3, (RF, RF, RF_IF), rd_rn_rm),
24430 cCL("fmle", e980100, 3, (RF, RF, RF_IF), rd_rn_rm),
24431 cCL("fmlep", e980120, 3, (RF, RF, RF_IF), rd_rn_rm),
24432 cCL("fmlem", e980140, 3, (RF, RF, RF_IF), rd_rn_rm),
24433 cCL("fmlez", e980160, 3, (RF, RF, RF_IF), rd_rn_rm),
24435 cCL("fdvs", ea00100, 3, (RF, RF, RF_IF), rd_rn_rm),
24436 cCL("fdvsp", ea00120, 3, (RF, RF, RF_IF), rd_rn_rm),
24437 cCL("fdvsm", ea00140, 3, (RF, RF, RF_IF), rd_rn_rm),
24438 cCL("fdvsz", ea00160, 3, (RF, RF, RF_IF), rd_rn_rm),
24439 cCL("fdvd", ea00180, 3, (RF, RF, RF_IF), rd_rn_rm),
24440 cCL("fdvdp", ea001a0, 3, (RF, RF, RF_IF), rd_rn_rm),
24441 cCL("fdvdm", ea001c0, 3, (RF, RF, RF_IF), rd_rn_rm),
24442 cCL("fdvdz", ea001e0, 3, (RF, RF, RF_IF), rd_rn_rm),
24443 cCL("fdve", ea80100, 3, (RF, RF, RF_IF), rd_rn_rm),
24444 cCL("fdvep", ea80120, 3, (RF, RF, RF_IF), rd_rn_rm),
24445 cCL("fdvem", ea80140, 3, (RF, RF, RF_IF), rd_rn_rm),
24446 cCL("fdvez", ea80160, 3, (RF, RF, RF_IF), rd_rn_rm),
24448 cCL("frds", eb00100, 3, (RF, RF, RF_IF), rd_rn_rm),
24449 cCL("frdsp", eb00120, 3, (RF, RF, RF_IF), rd_rn_rm),
24450 cCL("frdsm", eb00140, 3, (RF, RF, RF_IF), rd_rn_rm),
24451 cCL("frdsz", eb00160, 3, (RF, RF, RF_IF), rd_rn_rm),
24452 cCL("frdd", eb00180, 3, (RF, RF, RF_IF), rd_rn_rm),
24453 cCL("frddp", eb001a0, 3, (RF, RF, RF_IF), rd_rn_rm),
24454 cCL("frddm", eb001c0, 3, (RF, RF, RF_IF), rd_rn_rm),
24455 cCL("frddz", eb001e0, 3, (RF, RF, RF_IF), rd_rn_rm),
24456 cCL("frde", eb80100, 3, (RF, RF, RF_IF), rd_rn_rm),
24457 cCL("frdep", eb80120, 3, (RF, RF, RF_IF), rd_rn_rm),
24458 cCL("frdem", eb80140, 3, (RF, RF, RF_IF), rd_rn_rm),
24459 cCL("frdez", eb80160, 3, (RF, RF, RF_IF), rd_rn_rm),
24461 cCL("pols", ec00100, 3, (RF, RF, RF_IF), rd_rn_rm),
24462 cCL("polsp", ec00120, 3, (RF, RF, RF_IF), rd_rn_rm),
24463 cCL("polsm", ec00140, 3, (RF, RF, RF_IF), rd_rn_rm),
24464 cCL("polsz", ec00160, 3, (RF, RF, RF_IF), rd_rn_rm),
24465 cCL("pold", ec00180, 3, (RF, RF, RF_IF), rd_rn_rm),
24466 cCL("poldp", ec001a0, 3, (RF, RF, RF_IF), rd_rn_rm),
24467 cCL("poldm", ec001c0, 3, (RF, RF, RF_IF), rd_rn_rm),
24468 cCL("poldz", ec001e0, 3, (RF, RF, RF_IF), rd_rn_rm),
24469 cCL("pole", ec80100, 3, (RF, RF, RF_IF), rd_rn_rm),
24470 cCL("polep", ec80120, 3, (RF, RF, RF_IF), rd_rn_rm),
24471 cCL("polem", ec80140, 3, (RF, RF, RF_IF), rd_rn_rm),
24472 cCL("polez", ec80160, 3, (RF, RF, RF_IF), rd_rn_rm),
24474 cCE("cmf", e90f110, 2, (RF, RF_IF), fpa_cmp),
24475 C3E("cmfe", ed0f110, 2, (RF, RF_IF), fpa_cmp),
24476 cCE("cnf", eb0f110, 2, (RF, RF_IF), fpa_cmp),
24477 C3E("cnfe", ef0f110, 2, (RF, RF_IF), fpa_cmp),
24479 cCL("flts", e000110, 2, (RF, RR), rn_rd),
24480 cCL("fltsp", e000130, 2, (RF, RR), rn_rd),
24481 cCL("fltsm", e000150, 2, (RF, RR), rn_rd),
24482 cCL("fltsz", e000170, 2, (RF, RR), rn_rd),
24483 cCL("fltd", e000190, 2, (RF, RR), rn_rd),
24484 cCL("fltdp", e0001b0, 2, (RF, RR), rn_rd),
24485 cCL("fltdm", e0001d0, 2, (RF, RR), rn_rd),
24486 cCL("fltdz", e0001f0, 2, (RF, RR), rn_rd),
24487 cCL("flte", e080110, 2, (RF, RR), rn_rd),
24488 cCL("fltep", e080130, 2, (RF, RR), rn_rd),
24489 cCL("fltem", e080150, 2, (RF, RR), rn_rd),
24490 cCL("fltez", e080170, 2, (RF, RR), rn_rd),
24492 /* The implementation of the FIX instruction is broken on some
24493 assemblers, in that it accepts a precision specifier as well as a
24494 rounding specifier, despite the fact that this is meaningless.
24495 To be more compatible, we accept it as well, though of course it
24496 does not set any bits. */
24497 cCE("fix", e100110, 2, (RR, RF), rd_rm),
24498 cCL("fixp", e100130, 2, (RR, RF), rd_rm),
24499 cCL("fixm", e100150, 2, (RR, RF), rd_rm),
24500 cCL("fixz", e100170, 2, (RR, RF), rd_rm),
24501 cCL("fixsp", e100130, 2, (RR, RF), rd_rm),
24502 cCL("fixsm", e100150, 2, (RR, RF), rd_rm),
24503 cCL("fixsz", e100170, 2, (RR, RF), rd_rm),
24504 cCL("fixdp", e100130, 2, (RR, RF), rd_rm),
24505 cCL("fixdm", e100150, 2, (RR, RF), rd_rm),
24506 cCL("fixdz", e100170, 2, (RR, RF), rd_rm),
24507 cCL("fixep", e100130, 2, (RR, RF), rd_rm),
24508 cCL("fixem", e100150, 2, (RR, RF), rd_rm),
24509 cCL("fixez", e100170, 2, (RR, RF), rd_rm),
24511 /* Instructions that were new with the real FPA, call them V2. */
24513 #define ARM_VARIANT & fpu_fpa_ext_v2
24515 cCE("lfm", c100200, 3, (RF, I4b, ADDR), fpa_ldmstm),
24516 cCL("lfmfd", c900200, 3, (RF, I4b, ADDR), fpa_ldmstm),
24517 cCL("lfmea", d100200, 3, (RF, I4b, ADDR), fpa_ldmstm),
24518 cCE("sfm", c000200, 3, (RF, I4b, ADDR), fpa_ldmstm),
24519 cCL("sfmfd", d000200, 3, (RF, I4b, ADDR), fpa_ldmstm),
24520 cCL("sfmea", c800200, 3, (RF, I4b, ADDR), fpa_ldmstm),
24523 #define ARM_VARIANT & fpu_vfp_ext_v1xd /* VFP V1xD (single precision). */
24524 #undef THUMB_VARIANT
24525 #define THUMB_VARIANT & arm_ext_v6t2
24526 mcCE(vmrs, ef00a10, 2, (APSR_RR, RVC), vmrs),
24527 mcCE(vmsr, ee00a10, 2, (RVC, RR), vmsr),
24528 #undef THUMB_VARIANT
24530 /* Moves and type conversions. */
24531 cCE("fmstat", ef1fa10, 0, (), noargs),
24532 cCE("fsitos", eb80ac0, 2, (RVS, RVS), vfp_sp_monadic),
24533 cCE("fuitos", eb80a40, 2, (RVS, RVS), vfp_sp_monadic),
24534 cCE("ftosis", ebd0a40, 2, (RVS, RVS), vfp_sp_monadic),
24535 cCE("ftosizs", ebd0ac0, 2, (RVS, RVS), vfp_sp_monadic),
24536 cCE("ftouis", ebc0a40, 2, (RVS, RVS), vfp_sp_monadic),
24537 cCE("ftouizs", ebc0ac0, 2, (RVS, RVS), vfp_sp_monadic),
24538 cCE("fmrx", ef00a10, 2, (RR, RVC), rd_rn),
24539 cCE("fmxr", ee00a10, 2, (RVC, RR), rn_rd),
24541 /* Memory operations. */
24542 cCE("flds", d100a00, 2, (RVS, ADDRGLDC), vfp_sp_ldst),
24543 cCE("fsts", d000a00, 2, (RVS, ADDRGLDC), vfp_sp_ldst),
24544 cCE("fldmias", c900a00, 2, (RRnpctw, VRSLST), vfp_sp_ldstmia),
24545 cCE("fldmfds", c900a00, 2, (RRnpctw, VRSLST), vfp_sp_ldstmia),
24546 cCE("fldmdbs", d300a00, 2, (RRnpctw, VRSLST), vfp_sp_ldstmdb),
24547 cCE("fldmeas", d300a00, 2, (RRnpctw, VRSLST), vfp_sp_ldstmdb),
24548 cCE("fldmiax", c900b00, 2, (RRnpctw, VRDLST), vfp_xp_ldstmia),
24549 cCE("fldmfdx", c900b00, 2, (RRnpctw, VRDLST), vfp_xp_ldstmia),
24550 cCE("fldmdbx", d300b00, 2, (RRnpctw, VRDLST), vfp_xp_ldstmdb),
24551 cCE("fldmeax", d300b00, 2, (RRnpctw, VRDLST), vfp_xp_ldstmdb),
24552 cCE("fstmias", c800a00, 2, (RRnpctw, VRSLST), vfp_sp_ldstmia),
24553 cCE("fstmeas", c800a00, 2, (RRnpctw, VRSLST), vfp_sp_ldstmia),
24554 cCE("fstmdbs", d200a00, 2, (RRnpctw, VRSLST), vfp_sp_ldstmdb),
24555 cCE("fstmfds", d200a00, 2, (RRnpctw, VRSLST), vfp_sp_ldstmdb),
24556 cCE("fstmiax", c800b00, 2, (RRnpctw, VRDLST), vfp_xp_ldstmia),
24557 cCE("fstmeax", c800b00, 2, (RRnpctw, VRDLST), vfp_xp_ldstmia),
24558 cCE("fstmdbx", d200b00, 2, (RRnpctw, VRDLST), vfp_xp_ldstmdb),
24559 cCE("fstmfdx", d200b00, 2, (RRnpctw, VRDLST), vfp_xp_ldstmdb),
24561 /* Monadic operations. */
24562 cCE("fabss", eb00ac0, 2, (RVS, RVS), vfp_sp_monadic),
24563 cCE("fnegs", eb10a40, 2, (RVS, RVS), vfp_sp_monadic),
24564 cCE("fsqrts", eb10ac0, 2, (RVS, RVS), vfp_sp_monadic),
24566 /* Dyadic operations. */
24567 cCE("fadds", e300a00, 3, (RVS, RVS, RVS), vfp_sp_dyadic),
24568 cCE("fsubs", e300a40, 3, (RVS, RVS, RVS), vfp_sp_dyadic),
24569 cCE("fmuls", e200a00, 3, (RVS, RVS, RVS), vfp_sp_dyadic),
24570 cCE("fdivs", e800a00, 3, (RVS, RVS, RVS), vfp_sp_dyadic),
24571 cCE("fmacs", e000a00, 3, (RVS, RVS, RVS), vfp_sp_dyadic),
24572 cCE("fmscs", e100a00, 3, (RVS, RVS, RVS), vfp_sp_dyadic),
24573 cCE("fnmuls", e200a40, 3, (RVS, RVS, RVS), vfp_sp_dyadic),
24574 cCE("fnmacs", e000a40, 3, (RVS, RVS, RVS), vfp_sp_dyadic),
24575 cCE("fnmscs", e100a40, 3, (RVS, RVS, RVS), vfp_sp_dyadic),
24578 cCE("fcmps", eb40a40, 2, (RVS, RVS), vfp_sp_monadic),
24579 cCE("fcmpzs", eb50a40, 1, (RVS), vfp_sp_compare_z),
24580 cCE("fcmpes", eb40ac0, 2, (RVS, RVS), vfp_sp_monadic),
24581 cCE("fcmpezs", eb50ac0, 1, (RVS), vfp_sp_compare_z),
24583 /* Double precision load/store are still present on single precision
24584 implementations. */
24585 cCE("fldd", d100b00, 2, (RVD, ADDRGLDC), vfp_dp_ldst),
24586 cCE("fstd", d000b00, 2, (RVD, ADDRGLDC), vfp_dp_ldst),
24587 cCE("fldmiad", c900b00, 2, (RRnpctw, VRDLST), vfp_dp_ldstmia),
24588 cCE("fldmfdd", c900b00, 2, (RRnpctw, VRDLST), vfp_dp_ldstmia),
24589 cCE("fldmdbd", d300b00, 2, (RRnpctw, VRDLST), vfp_dp_ldstmdb),
24590 cCE("fldmead", d300b00, 2, (RRnpctw, VRDLST), vfp_dp_ldstmdb),
24591 cCE("fstmiad", c800b00, 2, (RRnpctw, VRDLST), vfp_dp_ldstmia),
24592 cCE("fstmead", c800b00, 2, (RRnpctw, VRDLST), vfp_dp_ldstmia),
24593 cCE("fstmdbd", d200b00, 2, (RRnpctw, VRDLST), vfp_dp_ldstmdb),
24594 cCE("fstmfdd", d200b00, 2, (RRnpctw, VRDLST), vfp_dp_ldstmdb),
24597 #define ARM_VARIANT & fpu_vfp_ext_v1 /* VFP V1 (Double precision). */
24599 /* Moves and type conversions. */
24600 cCE("fcvtds", eb70ac0, 2, (RVD, RVS), vfp_dp_sp_cvt),
24601 cCE("fcvtsd", eb70bc0, 2, (RVS, RVD), vfp_sp_dp_cvt),
24602 cCE("fmdhr", e200b10, 2, (RVD, RR), vfp_dp_rn_rd),
24603 cCE("fmdlr", e000b10, 2, (RVD, RR), vfp_dp_rn_rd),
24604 cCE("fmrdh", e300b10, 2, (RR, RVD), vfp_dp_rd_rn),
24605 cCE("fmrdl", e100b10, 2, (RR, RVD), vfp_dp_rd_rn),
24606 cCE("fsitod", eb80bc0, 2, (RVD, RVS), vfp_dp_sp_cvt),
24607 cCE("fuitod", eb80b40, 2, (RVD, RVS), vfp_dp_sp_cvt),
24608 cCE("ftosid", ebd0b40, 2, (RVS, RVD), vfp_sp_dp_cvt),
24609 cCE("ftosizd", ebd0bc0, 2, (RVS, RVD), vfp_sp_dp_cvt),
24610 cCE("ftouid", ebc0b40, 2, (RVS, RVD), vfp_sp_dp_cvt),
24611 cCE("ftouizd", ebc0bc0, 2, (RVS, RVD), vfp_sp_dp_cvt),
24613 /* Monadic operations. */
24614 cCE("fabsd", eb00bc0, 2, (RVD, RVD), vfp_dp_rd_rm),
24615 cCE("fnegd", eb10b40, 2, (RVD, RVD), vfp_dp_rd_rm),
24616 cCE("fsqrtd", eb10bc0, 2, (RVD, RVD), vfp_dp_rd_rm),
24618 /* Dyadic operations. */
24619 cCE("faddd", e300b00, 3, (RVD, RVD, RVD), vfp_dp_rd_rn_rm),
24620 cCE("fsubd", e300b40, 3, (RVD, RVD, RVD), vfp_dp_rd_rn_rm),
24621 cCE("fmuld", e200b00, 3, (RVD, RVD, RVD), vfp_dp_rd_rn_rm),
24622 cCE("fdivd", e800b00, 3, (RVD, RVD, RVD), vfp_dp_rd_rn_rm),
24623 cCE("fmacd", e000b00, 3, (RVD, RVD, RVD), vfp_dp_rd_rn_rm),
24624 cCE("fmscd", e100b00, 3, (RVD, RVD, RVD), vfp_dp_rd_rn_rm),
24625 cCE("fnmuld", e200b40, 3, (RVD, RVD, RVD), vfp_dp_rd_rn_rm),
24626 cCE("fnmacd", e000b40, 3, (RVD, RVD, RVD), vfp_dp_rd_rn_rm),
24627 cCE("fnmscd", e100b40, 3, (RVD, RVD, RVD), vfp_dp_rd_rn_rm),
24630 cCE("fcmpd", eb40b40, 2, (RVD, RVD), vfp_dp_rd_rm),
24631 cCE("fcmpzd", eb50b40, 1, (RVD), vfp_dp_rd),
24632 cCE("fcmped", eb40bc0, 2, (RVD, RVD), vfp_dp_rd_rm),
24633 cCE("fcmpezd", eb50bc0, 1, (RVD), vfp_dp_rd),
24635 /* Instructions which may belong to either the Neon or VFP instruction sets.
24636 Individual encoder functions perform additional architecture checks. */
24638 #define ARM_VARIANT & fpu_vfp_ext_v1xd
24639 #undef THUMB_VARIANT
24640 #define THUMB_VARIANT & fpu_vfp_ext_v1xd
24642 /* These mnemonics are unique to VFP. */
24643 NCE(vsqrt, 0, 2, (RVSD, RVSD), vfp_nsyn_sqrt),
24644 NCE(vdiv, 0, 3, (RVSD, RVSD, RVSD), vfp_nsyn_div),
24645 nCE(vnmul, _vnmul, 3, (RVSD, RVSD, RVSD), vfp_nsyn_nmul),
24646 nCE(vnmla, _vnmla, 3, (RVSD, RVSD, RVSD), vfp_nsyn_nmul),
24647 nCE(vnmls, _vnmls, 3, (RVSD, RVSD, RVSD), vfp_nsyn_nmul),
24648 NCE(vpush, 0, 1, (VRSDLST), vfp_nsyn_push),
24649 NCE(vpop, 0, 1, (VRSDLST), vfp_nsyn_pop),
24650 NCE(vcvtz, 0, 2, (RVSD, RVSD), vfp_nsyn_cvtz),
24652 /* Mnemonics shared by Neon and VFP. */
24653 nCEF(vmls, _vmls, 3, (RNSDQ, oRNSDQ, RNSDQ_RNSC), neon_mac_maybe_scalar),
24655 NCE(vldm, c900b00, 2, (RRnpctw, VRSDLST), neon_ldm_stm),
24656 NCE(vldmia, c900b00, 2, (RRnpctw, VRSDLST), neon_ldm_stm),
24657 NCE(vldmdb, d100b00, 2, (RRnpctw, VRSDLST), neon_ldm_stm),
24658 NCE(vstm, c800b00, 2, (RRnpctw, VRSDLST), neon_ldm_stm),
24659 NCE(vstmia, c800b00, 2, (RRnpctw, VRSDLST), neon_ldm_stm),
24660 NCE(vstmdb, d000b00, 2, (RRnpctw, VRSDLST), neon_ldm_stm),
24662 mnCEF(vcvt, _vcvt, 3, (RNSDQMQ, RNSDQMQ, oI32z), neon_cvt),
24663 nCEF(vcvtr, _vcvt, 2, (RNSDQ, RNSDQ), neon_cvtr),
24664 MNCEF(vcvtb, eb20a40, 3, (RVSDMQ, RVSDMQ, oI32b), neon_cvtb),
24665 MNCEF(vcvtt, eb20a40, 3, (RVSDMQ, RVSDMQ, oI32b), neon_cvtt),
24668 /* NOTE: All VMOV encoding is special-cased! */
24669 NCE(vmovq, 0, 1, (VMOV), neon_mov),
24671 #undef THUMB_VARIANT
24672 /* Could be either VLDR/VSTR or VLDR/VSTR (system register) which are guarded
24673 by different feature bits. Since we are setting the Thumb guard, we can
24674 require Thumb-1 which makes it a nop guard and set the right feature bit in
24675 do_vldr_vstr (). */
24676 #define THUMB_VARIANT & arm_ext_v4t
24677 NCE(vldr, d100b00, 2, (VLDR, ADDRGLDC), vldr_vstr),
24678 NCE(vstr, d000b00, 2, (VLDR, ADDRGLDC), vldr_vstr),
24681 #define ARM_VARIANT & arm_ext_fp16
24682 #undef THUMB_VARIANT
24683 #define THUMB_VARIANT & arm_ext_fp16
24684 /* New instructions added from v8.2, allowing the extraction and insertion of
24685 the upper 16 bits of a 32-bit vector register. */
24686 NCE (vmovx, eb00a40, 2, (RVS, RVS), neon_movhf),
24687 NCE (vins, eb00ac0, 2, (RVS, RVS), neon_movhf),
24689 /* New backported fma/fms instructions optional in v8.2. */
24690 NCE (vfmal, 810, 3, (RNDQ, RNSD, RNSD_RNSC), neon_vfmal),
24691 NCE (vfmsl, 810, 3, (RNDQ, RNSD, RNSD_RNSC), neon_vfmsl),
24693 #undef THUMB_VARIANT
24694 #define THUMB_VARIANT & fpu_neon_ext_v1
24696 #define ARM_VARIANT & fpu_neon_ext_v1
24698 /* Data processing with three registers of the same length. */
24699 /* integer ops, valid types S8 S16 S32 U8 U16 U32. */
24700 NUF(vaba, 0000710, 3, (RNDQ, RNDQ, RNDQ), neon_dyadic_i_su),
24701 NUF(vabaq, 0000710, 3, (RNQ, RNQ, RNQ), neon_dyadic_i_su),
24702 NUF(vhaddq, 0000000, 3, (RNQ, oRNQ, RNQ), neon_dyadic_i_su),
24703 NUF(vrhaddq, 0000100, 3, (RNQ, oRNQ, RNQ), neon_dyadic_i_su),
24704 NUF(vhsubq, 0000200, 3, (RNQ, oRNQ, RNQ), neon_dyadic_i_su),
24705 /* integer ops, valid types S8 S16 S32 S64 U8 U16 U32 U64. */
24706 NUF(vqaddq, 0000010, 3, (RNQ, oRNQ, RNQ), neon_dyadic_i64_su),
24707 NUF(vqsubq, 0000210, 3, (RNQ, oRNQ, RNQ), neon_dyadic_i64_su),
24708 NUF(vrshlq, 0000500, 3, (RNQ, oRNQ, RNQ), neon_rshl),
24709 NUF(vqrshlq, 0000510, 3, (RNQ, oRNQ, RNQ), neon_rshl),
24710 /* If not immediate, fall back to neon_dyadic_i64_su.
24711 shl should accept I8 I16 I32 I64,
24712 qshl should accept S8 S16 S32 S64 U8 U16 U32 U64. */
24713 nUF(vshlq, _vshl, 3, (RNQ, oRNQ, RNDQ_I63b), neon_shl),
24714 nUF(vqshlq, _vqshl, 3, (RNQ, oRNQ, RNDQ_I63b), neon_qshl),
24715 /* Logic ops, types optional & ignored. */
24716 nUF(vandq, _vand, 3, (RNQ, oRNQ, RNDQ_Ibig), neon_logic),
24717 nUF(vbicq, _vbic, 3, (RNQ, oRNQ, RNDQ_Ibig), neon_logic),
24718 nUF(vorrq, _vorr, 3, (RNQ, oRNQ, RNDQ_Ibig), neon_logic),
24719 nUF(vornq, _vorn, 3, (RNQ, oRNQ, RNDQ_Ibig), neon_logic),
24720 nUF(veorq, _veor, 3, (RNQ, oRNQ, RNQ), neon_logic),
24721 /* Bitfield ops, untyped. */
24722 NUF(vbsl, 1100110, 3, (RNDQ, RNDQ, RNDQ), neon_bitfield),
24723 NUF(vbslq, 1100110, 3, (RNQ, RNQ, RNQ), neon_bitfield),
24724 NUF(vbit, 1200110, 3, (RNDQ, RNDQ, RNDQ), neon_bitfield),
24725 NUF(vbitq, 1200110, 3, (RNQ, RNQ, RNQ), neon_bitfield),
24726 NUF(vbif, 1300110, 3, (RNDQ, RNDQ, RNDQ), neon_bitfield),
24727 NUF(vbifq, 1300110, 3, (RNQ, RNQ, RNQ), neon_bitfield),
24728 /* Int and float variants, types S8 S16 S32 U8 U16 U32 F16 F32. */
24729 nUF(vabdq, _vabd, 3, (RNQ, oRNQ, RNQ), neon_dyadic_if_su),
24730 nUF(vmaxq, _vmax, 3, (RNQ, oRNQ, RNQ), neon_dyadic_if_su),
24731 nUF(vminq, _vmin, 3, (RNQ, oRNQ, RNQ), neon_dyadic_if_su),
24732 /* Comparisons. Types S8 S16 S32 U8 U16 U32 F32. Non-immediate versions fall
24733 back to neon_dyadic_if_su. */
24734 nUF(vcge, _vcge, 3, (RNDQ, oRNDQ, RNDQ_I0), neon_cmp),
24735 nUF(vcgeq, _vcge, 3, (RNQ, oRNQ, RNDQ_I0), neon_cmp),
24736 nUF(vcgt, _vcgt, 3, (RNDQ, oRNDQ, RNDQ_I0), neon_cmp),
24737 nUF(vcgtq, _vcgt, 3, (RNQ, oRNQ, RNDQ_I0), neon_cmp),
24738 nUF(vclt, _vclt, 3, (RNDQ, oRNDQ, RNDQ_I0), neon_cmp_inv),
24739 nUF(vcltq, _vclt, 3, (RNQ, oRNQ, RNDQ_I0), neon_cmp_inv),
24740 nUF(vcle, _vcle, 3, (RNDQ, oRNDQ, RNDQ_I0), neon_cmp_inv),
24741 nUF(vcleq, _vcle, 3, (RNQ, oRNQ, RNDQ_I0), neon_cmp_inv),
24742 /* Comparison. Type I8 I16 I32 F32. */
24743 nUF(vceq, _vceq, 3, (RNDQ, oRNDQ, RNDQ_I0), neon_ceq),
24744 nUF(vceqq, _vceq, 3, (RNQ, oRNQ, RNDQ_I0), neon_ceq),
24745 /* As above, D registers only. */
24746 nUF(vpmax, _vpmax, 3, (RND, oRND, RND), neon_dyadic_if_su_d),
24747 nUF(vpmin, _vpmin, 3, (RND, oRND, RND), neon_dyadic_if_su_d),
24748 /* Int and float variants, signedness unimportant. */
24749 nUF(vmlaq, _vmla, 3, (RNQ, oRNQ, RNDQ_RNSC), neon_mac_maybe_scalar),
24750 nUF(vmlsq, _vmls, 3, (RNQ, oRNQ, RNDQ_RNSC), neon_mac_maybe_scalar),
24751 nUF(vpadd, _vpadd, 3, (RND, oRND, RND), neon_dyadic_if_i_d),
24752 /* Add/sub take types I8 I16 I32 I64 F32. */
24753 nUF(vaddq, _vadd, 3, (RNQ, oRNQ, RNQ), neon_addsub_if_i),
24754 nUF(vsubq, _vsub, 3, (RNQ, oRNQ, RNQ), neon_addsub_if_i),
24755 /* vtst takes sizes 8, 16, 32. */
24756 NUF(vtst, 0000810, 3, (RNDQ, oRNDQ, RNDQ), neon_tst),
24757 NUF(vtstq, 0000810, 3, (RNQ, oRNQ, RNQ), neon_tst),
24758 /* VMUL takes I8 I16 I32 F32 P8. */
24759 nUF(vmulq, _vmul, 3, (RNQ, oRNQ, RNDQ_RNSC), neon_mul),
24760 /* VQD{R}MULH takes S16 S32. */
24761 nUF(vqdmulhq, _vqdmulh, 3, (RNQ, oRNQ, RNDQ_RNSC), neon_qdmulh),
24762 nUF(vqrdmulhq, _vqrdmulh, 3, (RNQ, oRNQ, RNDQ_RNSC), neon_qdmulh),
24763 NUF(vacge, 0000e10, 3, (RNDQ, oRNDQ, RNDQ), neon_fcmp_absolute),
24764 NUF(vacgeq, 0000e10, 3, (RNQ, oRNQ, RNQ), neon_fcmp_absolute),
24765 NUF(vacgt, 0200e10, 3, (RNDQ, oRNDQ, RNDQ), neon_fcmp_absolute),
24766 NUF(vacgtq, 0200e10, 3, (RNQ, oRNQ, RNQ), neon_fcmp_absolute),
24767 NUF(vaclt, 0200e10, 3, (RNDQ, oRNDQ, RNDQ), neon_fcmp_absolute_inv),
24768 NUF(vacltq, 0200e10, 3, (RNQ, oRNQ, RNQ), neon_fcmp_absolute_inv),
24769 NUF(vacle, 0000e10, 3, (RNDQ, oRNDQ, RNDQ), neon_fcmp_absolute_inv),
24770 NUF(vacleq, 0000e10, 3, (RNQ, oRNQ, RNQ), neon_fcmp_absolute_inv),
24771 NUF(vrecps, 0000f10, 3, (RNDQ, oRNDQ, RNDQ), neon_step),
24772 NUF(vrecpsq, 0000f10, 3, (RNQ, oRNQ, RNQ), neon_step),
24773 NUF(vrsqrts, 0200f10, 3, (RNDQ, oRNDQ, RNDQ), neon_step),
24774 NUF(vrsqrtsq, 0200f10, 3, (RNQ, oRNQ, RNQ), neon_step),
24775 /* ARM v8.1 extension. */
24776 nUF (vqrdmlahq, _vqrdmlah, 3, (RNQ, oRNQ, RNDQ_RNSC), neon_qrdmlah),
24777 nUF (vqrdmlsh, _vqrdmlsh, 3, (RNDQ, oRNDQ, RNDQ_RNSC), neon_qrdmlah),
24778 nUF (vqrdmlshq, _vqrdmlsh, 3, (RNQ, oRNQ, RNDQ_RNSC), neon_qrdmlah),
24780 /* Two address, int/float. Types S8 S16 S32 F32. */
24781 NUF(vabsq, 1b10300, 2, (RNQ, RNQ), neon_abs_neg),
24782 NUF(vnegq, 1b10380, 2, (RNQ, RNQ), neon_abs_neg),
24784 /* Data processing with two registers and a shift amount. */
24785 /* Right shifts, and variants with rounding.
24786 Types accepted S8 S16 S32 S64 U8 U16 U32 U64. */
24787 NUF(vshrq, 0800010, 3, (RNQ, oRNQ, I64z), neon_rshift_round_imm),
24788 NUF(vrshrq, 0800210, 3, (RNQ, oRNQ, I64z), neon_rshift_round_imm),
24789 NUF(vsra, 0800110, 3, (RNDQ, oRNDQ, I64), neon_rshift_round_imm),
24790 NUF(vsraq, 0800110, 3, (RNQ, oRNQ, I64), neon_rshift_round_imm),
24791 NUF(vrsra, 0800310, 3, (RNDQ, oRNDQ, I64), neon_rshift_round_imm),
24792 NUF(vrsraq, 0800310, 3, (RNQ, oRNQ, I64), neon_rshift_round_imm),
24793 /* Shift and insert. Sizes accepted 8 16 32 64. */
24794 NUF(vsliq, 1800510, 3, (RNQ, oRNQ, I63), neon_sli),
24795 NUF(vsriq, 1800410, 3, (RNQ, oRNQ, I64), neon_sri),
24796 /* QSHL{U} immediate accepts S8 S16 S32 S64 U8 U16 U32 U64. */
24797 NUF(vqshluq, 1800610, 3, (RNQ, oRNQ, I63), neon_qshlu_imm),
24798 /* Right shift immediate, saturating & narrowing, with rounding variants.
24799 Types accepted S16 S32 S64 U16 U32 U64. */
24800 NUF(vqshrn, 0800910, 3, (RND, RNQ, I32z), neon_rshift_sat_narrow),
24801 NUF(vqrshrn, 0800950, 3, (RND, RNQ, I32z), neon_rshift_sat_narrow),
24802 /* As above, unsigned. Types accepted S16 S32 S64. */
24803 NUF(vqshrun, 0800810, 3, (RND, RNQ, I32z), neon_rshift_sat_narrow_u),
24804 NUF(vqrshrun, 0800850, 3, (RND, RNQ, I32z), neon_rshift_sat_narrow_u),
24805 /* Right shift narrowing. Types accepted I16 I32 I64. */
24806 NUF(vshrn, 0800810, 3, (RND, RNQ, I32z), neon_rshift_narrow),
24807 NUF(vrshrn, 0800850, 3, (RND, RNQ, I32z), neon_rshift_narrow),
24808 /* Special case. Types S8 S16 S32 U8 U16 U32. Handles max shift variant. */
24809 nUF(vshll, _vshll, 3, (RNQ, RND, I32), neon_shll),
24810 /* CVT with optional immediate for fixed-point variant. */
24811 nUF(vcvtq, _vcvt, 3, (RNQ, RNQ, oI32b), neon_cvt),
24813 nUF(vmvnq, _vmvn, 2, (RNQ, RNDQ_Ibig), neon_mvn),
24815 /* Data processing, three registers of different lengths. */
24816 /* Dyadic, long insns. Types S8 S16 S32 U8 U16 U32. */
24817 NUF(vabal, 0800500, 3, (RNQ, RND, RND), neon_abal),
24818 /* If not scalar, fall back to neon_dyadic_long.
24819 Vector types as above, scalar types S16 S32 U16 U32. */
24820 nUF(vmlal, _vmlal, 3, (RNQ, RND, RND_RNSC), neon_mac_maybe_scalar_long),
24821 nUF(vmlsl, _vmlsl, 3, (RNQ, RND, RND_RNSC), neon_mac_maybe_scalar_long),
24822 /* Dyadic, widening insns. Types S8 S16 S32 U8 U16 U32. */
24823 NUF(vaddw, 0800100, 3, (RNQ, oRNQ, RND), neon_dyadic_wide),
24824 NUF(vsubw, 0800300, 3, (RNQ, oRNQ, RND), neon_dyadic_wide),
24825 /* Dyadic, narrowing insns. Types I16 I32 I64. */
24826 NUF(vaddhn, 0800400, 3, (RND, RNQ, RNQ), neon_dyadic_narrow),
24827 NUF(vraddhn, 1800400, 3, (RND, RNQ, RNQ), neon_dyadic_narrow),
24828 NUF(vsubhn, 0800600, 3, (RND, RNQ, RNQ), neon_dyadic_narrow),
24829 NUF(vrsubhn, 1800600, 3, (RND, RNQ, RNQ), neon_dyadic_narrow),
24830 /* Saturating doubling multiplies. Types S16 S32. */
24831 nUF(vqdmlal, _vqdmlal, 3, (RNQ, RND, RND_RNSC), neon_mul_sat_scalar_long),
24832 nUF(vqdmlsl, _vqdmlsl, 3, (RNQ, RND, RND_RNSC), neon_mul_sat_scalar_long),
24833 nUF(vqdmull, _vqdmull, 3, (RNQ, RND, RND_RNSC), neon_mul_sat_scalar_long),
24834 /* VMULL. Vector types S8 S16 S32 U8 U16 U32 P8, scalar types
24835 S16 S32 U16 U32. */
24836 nUF(vmull, _vmull, 3, (RNQ, RND, RND_RNSC), neon_vmull),
24838 /* Extract. Size 8. */
24839 NUF(vext, 0b00000, 4, (RNDQ, oRNDQ, RNDQ, I15), neon_ext),
24840 NUF(vextq, 0b00000, 4, (RNQ, oRNQ, RNQ, I15), neon_ext),
24842 /* Two registers, miscellaneous. */
24843 /* Reverse. Sizes 8 16 32 (must be < size in opcode). */
24844 NUF(vrev64q, 1b00000, 2, (RNQ, RNQ), neon_rev),
24845 NUF(vrev32q, 1b00080, 2, (RNQ, RNQ), neon_rev),
24846 NUF(vrev16q, 1b00100, 2, (RNQ, RNQ), neon_rev),
24847 /* Vector replicate. Sizes 8 16 32. */
24848 nCE(vdupq, _vdup, 2, (RNQ, RR_RNSC), neon_dup),
24849 /* VMOVL. Types S8 S16 S32 U8 U16 U32. */
24850 NUF(vmovl, 0800a10, 2, (RNQ, RND), neon_movl),
24851 /* VMOVN. Types I16 I32 I64. */
24852 nUF(vmovn, _vmovn, 2, (RND, RNQ), neon_movn),
24853 /* VQMOVN. Types S16 S32 S64 U16 U32 U64. */
24854 nUF(vqmovn, _vqmovn, 2, (RND, RNQ), neon_qmovn),
24855 /* VQMOVUN. Types S16 S32 S64. */
24856 nUF(vqmovun, _vqmovun, 2, (RND, RNQ), neon_qmovun),
24857 /* VZIP / VUZP. Sizes 8 16 32. */
24858 NUF(vzip, 1b20180, 2, (RNDQ, RNDQ), neon_zip_uzp),
24859 NUF(vzipq, 1b20180, 2, (RNQ, RNQ), neon_zip_uzp),
24860 NUF(vuzp, 1b20100, 2, (RNDQ, RNDQ), neon_zip_uzp),
24861 NUF(vuzpq, 1b20100, 2, (RNQ, RNQ), neon_zip_uzp),
24862 /* VQABS / VQNEG. Types S8 S16 S32. */
24863 NUF(vqabsq, 1b00700, 2, (RNQ, RNQ), neon_sat_abs_neg),
24864 NUF(vqnegq, 1b00780, 2, (RNQ, RNQ), neon_sat_abs_neg),
24865 /* Pairwise, lengthening. Types S8 S16 S32 U8 U16 U32. */
24866 NUF(vpadal, 1b00600, 2, (RNDQ, RNDQ), neon_pair_long),
24867 NUF(vpadalq, 1b00600, 2, (RNQ, RNQ), neon_pair_long),
24868 NUF(vpaddl, 1b00200, 2, (RNDQ, RNDQ), neon_pair_long),
24869 NUF(vpaddlq, 1b00200, 2, (RNQ, RNQ), neon_pair_long),
24870 /* Reciprocal estimates. Types U32 F16 F32. */
24871 NUF(vrecpe, 1b30400, 2, (RNDQ, RNDQ), neon_recip_est),
24872 NUF(vrecpeq, 1b30400, 2, (RNQ, RNQ), neon_recip_est),
24873 NUF(vrsqrte, 1b30480, 2, (RNDQ, RNDQ), neon_recip_est),
24874 NUF(vrsqrteq, 1b30480, 2, (RNQ, RNQ), neon_recip_est),
24875 /* VCLS. Types S8 S16 S32. */
24876 NUF(vclsq, 1b00400, 2, (RNQ, RNQ), neon_cls),
24877 /* VCLZ. Types I8 I16 I32. */
24878 NUF(vclzq, 1b00480, 2, (RNQ, RNQ), neon_clz),
24879 /* VCNT. Size 8. */
24880 NUF(vcnt, 1b00500, 2, (RNDQ, RNDQ), neon_cnt),
24881 NUF(vcntq, 1b00500, 2, (RNQ, RNQ), neon_cnt),
24882 /* Two address, untyped. */
24883 NUF(vswp, 1b20000, 2, (RNDQ, RNDQ), neon_swp),
24884 NUF(vswpq, 1b20000, 2, (RNQ, RNQ), neon_swp),
24885 /* VTRN. Sizes 8 16 32. */
24886 nUF(vtrn, _vtrn, 2, (RNDQ, RNDQ), neon_trn),
24887 nUF(vtrnq, _vtrn, 2, (RNQ, RNQ), neon_trn),
24889 /* Table lookup. Size 8. */
24890 NUF(vtbl, 1b00800, 3, (RND, NRDLST, RND), neon_tbl_tbx),
24891 NUF(vtbx, 1b00840, 3, (RND, NRDLST, RND), neon_tbl_tbx),
24893 #undef THUMB_VARIANT
24894 #define THUMB_VARIANT & fpu_vfp_v3_or_neon_ext
24896 #define ARM_VARIANT & fpu_vfp_v3_or_neon_ext
24898 /* Neon element/structure load/store. */
24899 nUF(vld1, _vld1, 2, (NSTRLST, ADDR), neon_ldx_stx),
24900 nUF(vst1, _vst1, 2, (NSTRLST, ADDR), neon_ldx_stx),
24901 nUF(vld2, _vld2, 2, (NSTRLST, ADDR), neon_ldx_stx),
24902 nUF(vst2, _vst2, 2, (NSTRLST, ADDR), neon_ldx_stx),
24903 nUF(vld3, _vld3, 2, (NSTRLST, ADDR), neon_ldx_stx),
24904 nUF(vst3, _vst3, 2, (NSTRLST, ADDR), neon_ldx_stx),
24905 nUF(vld4, _vld4, 2, (NSTRLST, ADDR), neon_ldx_stx),
24906 nUF(vst4, _vst4, 2, (NSTRLST, ADDR), neon_ldx_stx),
24908 #undef THUMB_VARIANT
24909 #define THUMB_VARIANT & fpu_vfp_ext_v3xd
24911 #define ARM_VARIANT & fpu_vfp_ext_v3xd
24912 cCE("fconsts", eb00a00, 2, (RVS, I255), vfp_sp_const),
24913 cCE("fshtos", eba0a40, 2, (RVS, I16z), vfp_sp_conv_16),
24914 cCE("fsltos", eba0ac0, 2, (RVS, I32), vfp_sp_conv_32),
24915 cCE("fuhtos", ebb0a40, 2, (RVS, I16z), vfp_sp_conv_16),
24916 cCE("fultos", ebb0ac0, 2, (RVS, I32), vfp_sp_conv_32),
24917 cCE("ftoshs", ebe0a40, 2, (RVS, I16z), vfp_sp_conv_16),
24918 cCE("ftosls", ebe0ac0, 2, (RVS, I32), vfp_sp_conv_32),
24919 cCE("ftouhs", ebf0a40, 2, (RVS, I16z), vfp_sp_conv_16),
24920 cCE("ftouls", ebf0ac0, 2, (RVS, I32), vfp_sp_conv_32),
24922 #undef THUMB_VARIANT
24923 #define THUMB_VARIANT & fpu_vfp_ext_v3
24925 #define ARM_VARIANT & fpu_vfp_ext_v3
24927 cCE("fconstd", eb00b00, 2, (RVD, I255), vfp_dp_const),
24928 cCE("fshtod", eba0b40, 2, (RVD, I16z), vfp_dp_conv_16),
24929 cCE("fsltod", eba0bc0, 2, (RVD, I32), vfp_dp_conv_32),
24930 cCE("fuhtod", ebb0b40, 2, (RVD, I16z), vfp_dp_conv_16),
24931 cCE("fultod", ebb0bc0, 2, (RVD, I32), vfp_dp_conv_32),
24932 cCE("ftoshd", ebe0b40, 2, (RVD, I16z), vfp_dp_conv_16),
24933 cCE("ftosld", ebe0bc0, 2, (RVD, I32), vfp_dp_conv_32),
24934 cCE("ftouhd", ebf0b40, 2, (RVD, I16z), vfp_dp_conv_16),
24935 cCE("ftould", ebf0bc0, 2, (RVD, I32), vfp_dp_conv_32),
24938 #define ARM_VARIANT & fpu_vfp_ext_fma
24939 #undef THUMB_VARIANT
24940 #define THUMB_VARIANT & fpu_vfp_ext_fma
24941 /* Mnemonics shared by Neon, VFP and MVE. These are included in the
24942 VFP FMA variant; NEON and VFP FMA always includes the NEON
24943 FMA instructions. */
24944 mnCEF(vfma, _vfma, 3, (RNSDQMQ, oRNSDQMQ, RNSDQMQR), neon_fmac),
24945 mnCEF(vfms, _vfms, 3, (RNSDQMQ, oRNSDQMQ, RNSDQMQ), neon_fmac),
24947 /* ffmas/ffmad/ffmss/ffmsd are dummy mnemonics to satisfy gas;
24948 the v form should always be used. */
24949 cCE("ffmas", ea00a00, 3, (RVS, RVS, RVS), vfp_sp_dyadic),
24950 cCE("ffnmas", ea00a40, 3, (RVS, RVS, RVS), vfp_sp_dyadic),
24951 cCE("ffmad", ea00b00, 3, (RVD, RVD, RVD), vfp_dp_rd_rn_rm),
24952 cCE("ffnmad", ea00b40, 3, (RVD, RVD, RVD), vfp_dp_rd_rn_rm),
24953 nCE(vfnma, _vfnma, 3, (RVSD, RVSD, RVSD), vfp_nsyn_nmul),
24954 nCE(vfnms, _vfnms, 3, (RVSD, RVSD, RVSD), vfp_nsyn_nmul),
24956 #undef THUMB_VARIANT
24958 #define ARM_VARIANT & arm_cext_xscale /* Intel XScale extensions. */
24960 cCE("mia", e200010, 3, (RXA, RRnpc, RRnpc), xsc_mia),
24961 cCE("miaph", e280010, 3, (RXA, RRnpc, RRnpc), xsc_mia),
24962 cCE("miabb", e2c0010, 3, (RXA, RRnpc, RRnpc), xsc_mia),
24963 cCE("miabt", e2d0010, 3, (RXA, RRnpc, RRnpc), xsc_mia),
24964 cCE("miatb", e2e0010, 3, (RXA, RRnpc, RRnpc), xsc_mia),
24965 cCE("miatt", e2f0010, 3, (RXA, RRnpc, RRnpc), xsc_mia),
24966 cCE("mar", c400000, 3, (RXA, RRnpc, RRnpc), xsc_mar),
24967 cCE("mra", c500000, 3, (RRnpc, RRnpc, RXA), xsc_mra),
24970 #define ARM_VARIANT & arm_cext_iwmmxt /* Intel Wireless MMX technology. */
24972 cCE("tandcb", e13f130, 1, (RR), iwmmxt_tandorc),
24973 cCE("tandch", e53f130, 1, (RR), iwmmxt_tandorc),
24974 cCE("tandcw", e93f130, 1, (RR), iwmmxt_tandorc),
24975 cCE("tbcstb", e400010, 2, (RIWR, RR), rn_rd),
24976 cCE("tbcsth", e400050, 2, (RIWR, RR), rn_rd),
24977 cCE("tbcstw", e400090, 2, (RIWR, RR), rn_rd),
24978 cCE("textrcb", e130170, 2, (RR, I7), iwmmxt_textrc),
24979 cCE("textrch", e530170, 2, (RR, I7), iwmmxt_textrc),
24980 cCE("textrcw", e930170, 2, (RR, I7), iwmmxt_textrc),
24981 cCE("textrmub",e100070, 3, (RR, RIWR, I7), iwmmxt_textrm),
24982 cCE("textrmuh",e500070, 3, (RR, RIWR, I7), iwmmxt_textrm),
24983 cCE("textrmuw",e900070, 3, (RR, RIWR, I7), iwmmxt_textrm),
24984 cCE("textrmsb",e100078, 3, (RR, RIWR, I7), iwmmxt_textrm),
24985 cCE("textrmsh",e500078, 3, (RR, RIWR, I7), iwmmxt_textrm),
24986 cCE("textrmsw",e900078, 3, (RR, RIWR, I7), iwmmxt_textrm),
24987 cCE("tinsrb", e600010, 3, (RIWR, RR, I7), iwmmxt_tinsr),
24988 cCE("tinsrh", e600050, 3, (RIWR, RR, I7), iwmmxt_tinsr),
24989 cCE("tinsrw", e600090, 3, (RIWR, RR, I7), iwmmxt_tinsr),
24990 cCE("tmcr", e000110, 2, (RIWC_RIWG, RR), rn_rd),
24991 cCE("tmcrr", c400000, 3, (RIWR, RR, RR), rm_rd_rn),
24992 cCE("tmia", e200010, 3, (RIWR, RR, RR), iwmmxt_tmia),
24993 cCE("tmiaph", e280010, 3, (RIWR, RR, RR), iwmmxt_tmia),
24994 cCE("tmiabb", e2c0010, 3, (RIWR, RR, RR), iwmmxt_tmia),
24995 cCE("tmiabt", e2d0010, 3, (RIWR, RR, RR), iwmmxt_tmia),
24996 cCE("tmiatb", e2e0010, 3, (RIWR, RR, RR), iwmmxt_tmia),
24997 cCE("tmiatt", e2f0010, 3, (RIWR, RR, RR), iwmmxt_tmia),
24998 cCE("tmovmskb",e100030, 2, (RR, RIWR), rd_rn),
24999 cCE("tmovmskh",e500030, 2, (RR, RIWR), rd_rn),
25000 cCE("tmovmskw",e900030, 2, (RR, RIWR), rd_rn),
25001 cCE("tmrc", e100110, 2, (RR, RIWC_RIWG), rd_rn),
25002 cCE("tmrrc", c500000, 3, (RR, RR, RIWR), rd_rn_rm),
25003 cCE("torcb", e13f150, 1, (RR), iwmmxt_tandorc),
25004 cCE("torch", e53f150, 1, (RR), iwmmxt_tandorc),
25005 cCE("torcw", e93f150, 1, (RR), iwmmxt_tandorc),
25006 cCE("waccb", e0001c0, 2, (RIWR, RIWR), rd_rn),
25007 cCE("wacch", e4001c0, 2, (RIWR, RIWR), rd_rn),
25008 cCE("waccw", e8001c0, 2, (RIWR, RIWR), rd_rn),
25009 cCE("waddbss", e300180, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25010 cCE("waddb", e000180, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25011 cCE("waddbus", e100180, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25012 cCE("waddhss", e700180, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25013 cCE("waddh", e400180, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25014 cCE("waddhus", e500180, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25015 cCE("waddwss", eb00180, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25016 cCE("waddw", e800180, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25017 cCE("waddwus", e900180, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25018 cCE("waligni", e000020, 4, (RIWR, RIWR, RIWR, I7), iwmmxt_waligni),
25019 cCE("walignr0",e800020, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25020 cCE("walignr1",e900020, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25021 cCE("walignr2",ea00020, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25022 cCE("walignr3",eb00020, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25023 cCE("wand", e200000, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25024 cCE("wandn", e300000, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25025 cCE("wavg2b", e800000, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25026 cCE("wavg2br", e900000, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25027 cCE("wavg2h", ec00000, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25028 cCE("wavg2hr", ed00000, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25029 cCE("wcmpeqb", e000060, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25030 cCE("wcmpeqh", e400060, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25031 cCE("wcmpeqw", e800060, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25032 cCE("wcmpgtub",e100060, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25033 cCE("wcmpgtuh",e500060, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25034 cCE("wcmpgtuw",e900060, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25035 cCE("wcmpgtsb",e300060, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25036 cCE("wcmpgtsh",e700060, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25037 cCE("wcmpgtsw",eb00060, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25038 cCE("wldrb", c100000, 2, (RIWR, ADDR), iwmmxt_wldstbh),
25039 cCE("wldrh", c500000, 2, (RIWR, ADDR), iwmmxt_wldstbh),
25040 cCE("wldrw", c100100, 2, (RIWR_RIWC, ADDR), iwmmxt_wldstw),
25041 cCE("wldrd", c500100, 2, (RIWR, ADDR), iwmmxt_wldstd),
25042 cCE("wmacs", e600100, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25043 cCE("wmacsz", e700100, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25044 cCE("wmacu", e400100, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25045 cCE("wmacuz", e500100, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25046 cCE("wmadds", ea00100, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25047 cCE("wmaddu", e800100, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25048 cCE("wmaxsb", e200160, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25049 cCE("wmaxsh", e600160, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25050 cCE("wmaxsw", ea00160, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25051 cCE("wmaxub", e000160, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25052 cCE("wmaxuh", e400160, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25053 cCE("wmaxuw", e800160, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25054 cCE("wminsb", e300160, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25055 cCE("wminsh", e700160, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25056 cCE("wminsw", eb00160, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25057 cCE("wminub", e100160, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25058 cCE("wminuh", e500160, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25059 cCE("wminuw", e900160, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25060 cCE("wmov", e000000, 2, (RIWR, RIWR), iwmmxt_wmov),
25061 cCE("wmulsm", e300100, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25062 cCE("wmulsl", e200100, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25063 cCE("wmulum", e100100, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25064 cCE("wmulul", e000100, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25065 cCE("wor", e000000, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25066 cCE("wpackhss",e700080, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25067 cCE("wpackhus",e500080, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25068 cCE("wpackwss",eb00080, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25069 cCE("wpackwus",e900080, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25070 cCE("wpackdss",ef00080, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25071 cCE("wpackdus",ed00080, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25072 cCE("wrorh", e700040, 3, (RIWR, RIWR, RIWR_I32z),iwmmxt_wrwrwr_or_imm5),
25073 cCE("wrorhg", e700148, 3, (RIWR, RIWR, RIWG), rd_rn_rm),
25074 cCE("wrorw", eb00040, 3, (RIWR, RIWR, RIWR_I32z),iwmmxt_wrwrwr_or_imm5),
25075 cCE("wrorwg", eb00148, 3, (RIWR, RIWR, RIWG), rd_rn_rm),
25076 cCE("wrord", ef00040, 3, (RIWR, RIWR, RIWR_I32z),iwmmxt_wrwrwr_or_imm5),
25077 cCE("wrordg", ef00148, 3, (RIWR, RIWR, RIWG), rd_rn_rm),
25078 cCE("wsadb", e000120, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25079 cCE("wsadbz", e100120, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25080 cCE("wsadh", e400120, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25081 cCE("wsadhz", e500120, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25082 cCE("wshufh", e0001e0, 3, (RIWR, RIWR, I255), iwmmxt_wshufh),
25083 cCE("wsllh", e500040, 3, (RIWR, RIWR, RIWR_I32z),iwmmxt_wrwrwr_or_imm5),
25084 cCE("wsllhg", e500148, 3, (RIWR, RIWR, RIWG), rd_rn_rm),
25085 cCE("wsllw", e900040, 3, (RIWR, RIWR, RIWR_I32z),iwmmxt_wrwrwr_or_imm5),
25086 cCE("wsllwg", e900148, 3, (RIWR, RIWR, RIWG), rd_rn_rm),
25087 cCE("wslld", ed00040, 3, (RIWR, RIWR, RIWR_I32z),iwmmxt_wrwrwr_or_imm5),
25088 cCE("wslldg", ed00148, 3, (RIWR, RIWR, RIWG), rd_rn_rm),
25089 cCE("wsrah", e400040, 3, (RIWR, RIWR, RIWR_I32z),iwmmxt_wrwrwr_or_imm5),
25090 cCE("wsrahg", e400148, 3, (RIWR, RIWR, RIWG), rd_rn_rm),
25091 cCE("wsraw", e800040, 3, (RIWR, RIWR, RIWR_I32z),iwmmxt_wrwrwr_or_imm5),
25092 cCE("wsrawg", e800148, 3, (RIWR, RIWR, RIWG), rd_rn_rm),
25093 cCE("wsrad", ec00040, 3, (RIWR, RIWR, RIWR_I32z),iwmmxt_wrwrwr_or_imm5),
25094 cCE("wsradg", ec00148, 3, (RIWR, RIWR, RIWG), rd_rn_rm),
25095 cCE("wsrlh", e600040, 3, (RIWR, RIWR, RIWR_I32z),iwmmxt_wrwrwr_or_imm5),
25096 cCE("wsrlhg", e600148, 3, (RIWR, RIWR, RIWG), rd_rn_rm),
25097 cCE("wsrlw", ea00040, 3, (RIWR, RIWR, RIWR_I32z),iwmmxt_wrwrwr_or_imm5),
25098 cCE("wsrlwg", ea00148, 3, (RIWR, RIWR, RIWG), rd_rn_rm),
25099 cCE("wsrld", ee00040, 3, (RIWR, RIWR, RIWR_I32z),iwmmxt_wrwrwr_or_imm5),
25100 cCE("wsrldg", ee00148, 3, (RIWR, RIWR, RIWG), rd_rn_rm),
25101 cCE("wstrb", c000000, 2, (RIWR, ADDR), iwmmxt_wldstbh),
25102 cCE("wstrh", c400000, 2, (RIWR, ADDR), iwmmxt_wldstbh),
25103 cCE("wstrw", c000100, 2, (RIWR_RIWC, ADDR), iwmmxt_wldstw),
25104 cCE("wstrd", c400100, 2, (RIWR, ADDR), iwmmxt_wldstd),
25105 cCE("wsubbss", e3001a0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25106 cCE("wsubb", e0001a0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25107 cCE("wsubbus", e1001a0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25108 cCE("wsubhss", e7001a0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25109 cCE("wsubh", e4001a0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25110 cCE("wsubhus", e5001a0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25111 cCE("wsubwss", eb001a0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25112 cCE("wsubw", e8001a0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25113 cCE("wsubwus", e9001a0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25114 cCE("wunpckehub",e0000c0, 2, (RIWR, RIWR), rd_rn),
25115 cCE("wunpckehuh",e4000c0, 2, (RIWR, RIWR), rd_rn),
25116 cCE("wunpckehuw",e8000c0, 2, (RIWR, RIWR), rd_rn),
25117 cCE("wunpckehsb",e2000c0, 2, (RIWR, RIWR), rd_rn),
25118 cCE("wunpckehsh",e6000c0, 2, (RIWR, RIWR), rd_rn),
25119 cCE("wunpckehsw",ea000c0, 2, (RIWR, RIWR), rd_rn),
25120 cCE("wunpckihb", e1000c0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25121 cCE("wunpckihh", e5000c0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25122 cCE("wunpckihw", e9000c0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25123 cCE("wunpckelub",e0000e0, 2, (RIWR, RIWR), rd_rn),
25124 cCE("wunpckeluh",e4000e0, 2, (RIWR, RIWR), rd_rn),
25125 cCE("wunpckeluw",e8000e0, 2, (RIWR, RIWR), rd_rn),
25126 cCE("wunpckelsb",e2000e0, 2, (RIWR, RIWR), rd_rn),
25127 cCE("wunpckelsh",e6000e0, 2, (RIWR, RIWR), rd_rn),
25128 cCE("wunpckelsw",ea000e0, 2, (RIWR, RIWR), rd_rn),
25129 cCE("wunpckilb", e1000e0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25130 cCE("wunpckilh", e5000e0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25131 cCE("wunpckilw", e9000e0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25132 cCE("wxor", e100000, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25133 cCE("wzero", e300000, 1, (RIWR), iwmmxt_wzero),
25136 #define ARM_VARIANT & arm_cext_iwmmxt2 /* Intel Wireless MMX technology, version 2. */
25138 cCE("torvscb", e12f190, 1, (RR), iwmmxt_tandorc),
25139 cCE("torvsch", e52f190, 1, (RR), iwmmxt_tandorc),
25140 cCE("torvscw", e92f190, 1, (RR), iwmmxt_tandorc),
25141 cCE("wabsb", e2001c0, 2, (RIWR, RIWR), rd_rn),
25142 cCE("wabsh", e6001c0, 2, (RIWR, RIWR), rd_rn),
25143 cCE("wabsw", ea001c0, 2, (RIWR, RIWR), rd_rn),
25144 cCE("wabsdiffb", e1001c0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25145 cCE("wabsdiffh", e5001c0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25146 cCE("wabsdiffw", e9001c0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25147 cCE("waddbhusl", e2001a0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25148 cCE("waddbhusm", e6001a0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25149 cCE("waddhc", e600180, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25150 cCE("waddwc", ea00180, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25151 cCE("waddsubhx", ea001a0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25152 cCE("wavg4", e400000, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25153 cCE("wavg4r", e500000, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25154 cCE("wmaddsn", ee00100, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25155 cCE("wmaddsx", eb00100, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25156 cCE("wmaddun", ec00100, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25157 cCE("wmaddux", e900100, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25158 cCE("wmerge", e000080, 4, (RIWR, RIWR, RIWR, I7), iwmmxt_wmerge),
25159 cCE("wmiabb", e0000a0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25160 cCE("wmiabt", e1000a0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25161 cCE("wmiatb", e2000a0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25162 cCE("wmiatt", e3000a0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25163 cCE("wmiabbn", e4000a0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25164 cCE("wmiabtn", e5000a0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25165 cCE("wmiatbn", e6000a0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25166 cCE("wmiattn", e7000a0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25167 cCE("wmiawbb", e800120, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25168 cCE("wmiawbt", e900120, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25169 cCE("wmiawtb", ea00120, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25170 cCE("wmiawtt", eb00120, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25171 cCE("wmiawbbn", ec00120, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25172 cCE("wmiawbtn", ed00120, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25173 cCE("wmiawtbn", ee00120, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25174 cCE("wmiawttn", ef00120, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25175 cCE("wmulsmr", ef00100, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25176 cCE("wmulumr", ed00100, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25177 cCE("wmulwumr", ec000c0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25178 cCE("wmulwsmr", ee000c0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25179 cCE("wmulwum", ed000c0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25180 cCE("wmulwsm", ef000c0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25181 cCE("wmulwl", eb000c0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25182 cCE("wqmiabb", e8000a0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25183 cCE("wqmiabt", e9000a0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25184 cCE("wqmiatb", ea000a0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25185 cCE("wqmiatt", eb000a0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25186 cCE("wqmiabbn", ec000a0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25187 cCE("wqmiabtn", ed000a0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25188 cCE("wqmiatbn", ee000a0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25189 cCE("wqmiattn", ef000a0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25190 cCE("wqmulm", e100080, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25191 cCE("wqmulmr", e300080, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25192 cCE("wqmulwm", ec000e0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25193 cCE("wqmulwmr", ee000e0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25194 cCE("wsubaddhx", ed001c0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
25197 #define ARM_VARIANT & arm_cext_maverick /* Cirrus Maverick instructions. */
25199 cCE("cfldrs", c100400, 2, (RMF, ADDRGLDC), rd_cpaddr),
25200 cCE("cfldrd", c500400, 2, (RMD, ADDRGLDC), rd_cpaddr),
25201 cCE("cfldr32", c100500, 2, (RMFX, ADDRGLDC), rd_cpaddr),
25202 cCE("cfldr64", c500500, 2, (RMDX, ADDRGLDC), rd_cpaddr),
25203 cCE("cfstrs", c000400, 2, (RMF, ADDRGLDC), rd_cpaddr),
25204 cCE("cfstrd", c400400, 2, (RMD, ADDRGLDC), rd_cpaddr),
25205 cCE("cfstr32", c000500, 2, (RMFX, ADDRGLDC), rd_cpaddr),
25206 cCE("cfstr64", c400500, 2, (RMDX, ADDRGLDC), rd_cpaddr),
25207 cCE("cfmvsr", e000450, 2, (RMF, RR), rn_rd),
25208 cCE("cfmvrs", e100450, 2, (RR, RMF), rd_rn),
25209 cCE("cfmvdlr", e000410, 2, (RMD, RR), rn_rd),
25210 cCE("cfmvrdl", e100410, 2, (RR, RMD), rd_rn),
25211 cCE("cfmvdhr", e000430, 2, (RMD, RR), rn_rd),
25212 cCE("cfmvrdh", e100430, 2, (RR, RMD), rd_rn),
25213 cCE("cfmv64lr",e000510, 2, (RMDX, RR), rn_rd),
25214 cCE("cfmvr64l",e100510, 2, (RR, RMDX), rd_rn),
25215 cCE("cfmv64hr",e000530, 2, (RMDX, RR), rn_rd),
25216 cCE("cfmvr64h",e100530, 2, (RR, RMDX), rd_rn),
25217 cCE("cfmval32",e200440, 2, (RMAX, RMFX), rd_rn),
25218 cCE("cfmv32al",e100440, 2, (RMFX, RMAX), rd_rn),
25219 cCE("cfmvam32",e200460, 2, (RMAX, RMFX), rd_rn),
25220 cCE("cfmv32am",e100460, 2, (RMFX, RMAX), rd_rn),
25221 cCE("cfmvah32",e200480, 2, (RMAX, RMFX), rd_rn),
25222 cCE("cfmv32ah",e100480, 2, (RMFX, RMAX), rd_rn),
25223 cCE("cfmva32", e2004a0, 2, (RMAX, RMFX), rd_rn),
25224 cCE("cfmv32a", e1004a0, 2, (RMFX, RMAX), rd_rn),
25225 cCE("cfmva64", e2004c0, 2, (RMAX, RMDX), rd_rn),
25226 cCE("cfmv64a", e1004c0, 2, (RMDX, RMAX), rd_rn),
25227 cCE("cfmvsc32",e2004e0, 2, (RMDS, RMDX), mav_dspsc),
25228 cCE("cfmv32sc",e1004e0, 2, (RMDX, RMDS), rd),
25229 cCE("cfcpys", e000400, 2, (RMF, RMF), rd_rn),
25230 cCE("cfcpyd", e000420, 2, (RMD, RMD), rd_rn),
25231 cCE("cfcvtsd", e000460, 2, (RMD, RMF), rd_rn),
25232 cCE("cfcvtds", e000440, 2, (RMF, RMD), rd_rn),
25233 cCE("cfcvt32s",e000480, 2, (RMF, RMFX), rd_rn),
25234 cCE("cfcvt32d",e0004a0, 2, (RMD, RMFX), rd_rn),
25235 cCE("cfcvt64s",e0004c0, 2, (RMF, RMDX), rd_rn),
25236 cCE("cfcvt64d",e0004e0, 2, (RMD, RMDX), rd_rn),
25237 cCE("cfcvts32",e100580, 2, (RMFX, RMF), rd_rn),
25238 cCE("cfcvtd32",e1005a0, 2, (RMFX, RMD), rd_rn),
25239 cCE("cftruncs32",e1005c0, 2, (RMFX, RMF), rd_rn),
25240 cCE("cftruncd32",e1005e0, 2, (RMFX, RMD), rd_rn),
25241 cCE("cfrshl32",e000550, 3, (RMFX, RMFX, RR), mav_triple),
25242 cCE("cfrshl64",e000570, 3, (RMDX, RMDX, RR), mav_triple),
25243 cCE("cfsh32", e000500, 3, (RMFX, RMFX, I63s), mav_shift),
25244 cCE("cfsh64", e200500, 3, (RMDX, RMDX, I63s), mav_shift),
25245 cCE("cfcmps", e100490, 3, (RR, RMF, RMF), rd_rn_rm),
25246 cCE("cfcmpd", e1004b0, 3, (RR, RMD, RMD), rd_rn_rm),
25247 cCE("cfcmp32", e100590, 3, (RR, RMFX, RMFX), rd_rn_rm),
25248 cCE("cfcmp64", e1005b0, 3, (RR, RMDX, RMDX), rd_rn_rm),
25249 cCE("cfabss", e300400, 2, (RMF, RMF), rd_rn),
25250 cCE("cfabsd", e300420, 2, (RMD, RMD), rd_rn),
25251 cCE("cfnegs", e300440, 2, (RMF, RMF), rd_rn),
25252 cCE("cfnegd", e300460, 2, (RMD, RMD), rd_rn),
25253 cCE("cfadds", e300480, 3, (RMF, RMF, RMF), rd_rn_rm),
25254 cCE("cfaddd", e3004a0, 3, (RMD, RMD, RMD), rd_rn_rm),
25255 cCE("cfsubs", e3004c0, 3, (RMF, RMF, RMF), rd_rn_rm),
25256 cCE("cfsubd", e3004e0, 3, (RMD, RMD, RMD), rd_rn_rm),
25257 cCE("cfmuls", e100400, 3, (RMF, RMF, RMF), rd_rn_rm),
25258 cCE("cfmuld", e100420, 3, (RMD, RMD, RMD), rd_rn_rm),
25259 cCE("cfabs32", e300500, 2, (RMFX, RMFX), rd_rn),
25260 cCE("cfabs64", e300520, 2, (RMDX, RMDX), rd_rn),
25261 cCE("cfneg32", e300540, 2, (RMFX, RMFX), rd_rn),
25262 cCE("cfneg64", e300560, 2, (RMDX, RMDX), rd_rn),
25263 cCE("cfadd32", e300580, 3, (RMFX, RMFX, RMFX), rd_rn_rm),
25264 cCE("cfadd64", e3005a0, 3, (RMDX, RMDX, RMDX), rd_rn_rm),
25265 cCE("cfsub32", e3005c0, 3, (RMFX, RMFX, RMFX), rd_rn_rm),
25266 cCE("cfsub64", e3005e0, 3, (RMDX, RMDX, RMDX), rd_rn_rm),
25267 cCE("cfmul32", e100500, 3, (RMFX, RMFX, RMFX), rd_rn_rm),
25268 cCE("cfmul64", e100520, 3, (RMDX, RMDX, RMDX), rd_rn_rm),
25269 cCE("cfmac32", e100540, 3, (RMFX, RMFX, RMFX), rd_rn_rm),
25270 cCE("cfmsc32", e100560, 3, (RMFX, RMFX, RMFX), rd_rn_rm),
25271 cCE("cfmadd32",e000600, 4, (RMAX, RMFX, RMFX, RMFX), mav_quad),
25272 cCE("cfmsub32",e100600, 4, (RMAX, RMFX, RMFX, RMFX), mav_quad),
25273 cCE("cfmadda32", e200600, 4, (RMAX, RMAX, RMFX, RMFX), mav_quad),
25274 cCE("cfmsuba32", e300600, 4, (RMAX, RMAX, RMFX, RMFX), mav_quad),
25276 /* ARMv8.5-A instructions. */
25278 #define ARM_VARIANT & arm_ext_sb
25279 #undef THUMB_VARIANT
25280 #define THUMB_VARIANT & arm_ext_sb
25281 TUF("sb", 57ff070, f3bf8f70, 0, (), noargs, noargs),
25284 #define ARM_VARIANT & arm_ext_predres
25285 #undef THUMB_VARIANT
25286 #define THUMB_VARIANT & arm_ext_predres
25287 CE("cfprctx", e070f93, 1, (RRnpc), rd),
25288 CE("dvprctx", e070fb3, 1, (RRnpc), rd),
25289 CE("cpprctx", e070ff3, 1, (RRnpc), rd),
25291 /* ARMv8-M instructions. */
25293 #define ARM_VARIANT NULL
25294 #undef THUMB_VARIANT
25295 #define THUMB_VARIANT & arm_ext_v8m
25296 ToU("sg", e97fe97f, 0, (), noargs),
25297 ToC("blxns", 4784, 1, (RRnpc), t_blx),
25298 ToC("bxns", 4704, 1, (RRnpc), t_bx),
25299 ToC("tt", e840f000, 2, (RRnpc, RRnpc), tt),
25300 ToC("ttt", e840f040, 2, (RRnpc, RRnpc), tt),
25301 ToC("tta", e840f080, 2, (RRnpc, RRnpc), tt),
25302 ToC("ttat", e840f0c0, 2, (RRnpc, RRnpc), tt),
25304 /* FP for ARMv8-M Mainline. Enabled for ARMv8-M Mainline because the
25305 instructions behave as nop if no VFP is present. */
25306 #undef THUMB_VARIANT
25307 #define THUMB_VARIANT & arm_ext_v8m_main
25308 ToC("vlldm", ec300a00, 1, (RRnpc), rn),
25309 ToC("vlstm", ec200a00, 1, (RRnpc), rn),
25311 /* Armv8.1-M Mainline instructions. */
25312 #undef THUMB_VARIANT
25313 #define THUMB_VARIANT & arm_ext_v8_1m_main
25314 toU("cinc", _cinc, 3, (RRnpcsp, RR_ZR, COND), t_cond),
25315 toU("cinv", _cinv, 3, (RRnpcsp, RR_ZR, COND), t_cond),
25316 toU("cneg", _cneg, 3, (RRnpcsp, RR_ZR, COND), t_cond),
25317 toU("csel", _csel, 4, (RRnpcsp, RR_ZR, RR_ZR, COND), t_cond),
25318 toU("csetm", _csetm, 2, (RRnpcsp, COND), t_cond),
25319 toU("cset", _cset, 2, (RRnpcsp, COND), t_cond),
25320 toU("csinc", _csinc, 4, (RRnpcsp, RR_ZR, RR_ZR, COND), t_cond),
25321 toU("csinv", _csinv, 4, (RRnpcsp, RR_ZR, RR_ZR, COND), t_cond),
25322 toU("csneg", _csneg, 4, (RRnpcsp, RR_ZR, RR_ZR, COND), t_cond),
25324 toC("bf", _bf, 2, (EXPs, EXPs), t_branch_future),
25325 toU("bfcsel", _bfcsel, 4, (EXPs, EXPs, EXPs, COND), t_branch_future),
25326 toC("bfx", _bfx, 2, (EXPs, RRnpcsp), t_branch_future),
25327 toC("bfl", _bfl, 2, (EXPs, EXPs), t_branch_future),
25328 toC("bflx", _bflx, 2, (EXPs, RRnpcsp), t_branch_future),
25330 toU("dls", _dls, 2, (LR, RRnpcsp), t_loloop),
25331 toU("wls", _wls, 3, (LR, RRnpcsp, EXP), t_loloop),
25332 toU("le", _le, 2, (oLR, EXP), t_loloop),
25334 ToC("clrm", e89f0000, 1, (CLRMLST), t_clrm),
25335 ToC("vscclrm", ec9f0a00, 1, (VRSDVLST), t_vscclrm),
25337 #undef THUMB_VARIANT
25338 #define THUMB_VARIANT & mve_ext
25339 ToC("lsll", ea50010d, 3, (RRe, RRo, RRnpcsp_I32), mve_scalar_shift),
25340 ToC("lsrl", ea50011f, 3, (RRe, RRo, I32), mve_scalar_shift),
25341 ToC("asrl", ea50012d, 3, (RRe, RRo, RRnpcsp_I32), mve_scalar_shift),
25342 ToC("uqrshll", ea51010d, 3, (RRe, RRo, RRnpcsp), mve_scalar_shift),
25343 ToC("sqrshrl", ea51012d, 3, (RRe, RRo, RRnpcsp), mve_scalar_shift),
25344 ToC("uqshll", ea51010f, 3, (RRe, RRo, I32), mve_scalar_shift),
25345 ToC("urshrl", ea51011f, 3, (RRe, RRo, I32), mve_scalar_shift),
25346 ToC("srshrl", ea51012f, 3, (RRe, RRo, I32), mve_scalar_shift),
25347 ToC("sqshll", ea51013f, 3, (RRe, RRo, I32), mve_scalar_shift),
25348 ToC("uqrshl", ea500f0d, 2, (RRnpcsp, RRnpcsp), mve_scalar_shift),
25349 ToC("sqrshr", ea500f2d, 2, (RRnpcsp, RRnpcsp), mve_scalar_shift),
25350 ToC("uqshl", ea500f0f, 2, (RRnpcsp, I32), mve_scalar_shift),
25351 ToC("urshr", ea500f1f, 2, (RRnpcsp, I32), mve_scalar_shift),
25352 ToC("srshr", ea500f2f, 2, (RRnpcsp, I32), mve_scalar_shift),
25353 ToC("sqshl", ea500f3f, 2, (RRnpcsp, I32), mve_scalar_shift),
25355 ToC("vpt", ee410f00, 3, (COND, RMQ, RMQRZ), mve_vpt),
25356 ToC("vptt", ee018f00, 3, (COND, RMQ, RMQRZ), mve_vpt),
25357 ToC("vpte", ee418f00, 3, (COND, RMQ, RMQRZ), mve_vpt),
25358 ToC("vpttt", ee014f00, 3, (COND, RMQ, RMQRZ), mve_vpt),
25359 ToC("vptte", ee01cf00, 3, (COND, RMQ, RMQRZ), mve_vpt),
25360 ToC("vptet", ee41cf00, 3, (COND, RMQ, RMQRZ), mve_vpt),
25361 ToC("vptee", ee414f00, 3, (COND, RMQ, RMQRZ), mve_vpt),
25362 ToC("vptttt", ee012f00, 3, (COND, RMQ, RMQRZ), mve_vpt),
25363 ToC("vpttte", ee016f00, 3, (COND, RMQ, RMQRZ), mve_vpt),
25364 ToC("vpttet", ee01ef00, 3, (COND, RMQ, RMQRZ), mve_vpt),
25365 ToC("vpttee", ee01af00, 3, (COND, RMQ, RMQRZ), mve_vpt),
25366 ToC("vptett", ee41af00, 3, (COND, RMQ, RMQRZ), mve_vpt),
25367 ToC("vptete", ee41ef00, 3, (COND, RMQ, RMQRZ), mve_vpt),
25368 ToC("vpteet", ee416f00, 3, (COND, RMQ, RMQRZ), mve_vpt),
25369 ToC("vpteee", ee412f00, 3, (COND, RMQ, RMQRZ), mve_vpt),
25371 ToC("vpst", fe710f4d, 0, (), mve_vpt),
25372 ToC("vpstt", fe318f4d, 0, (), mve_vpt),
25373 ToC("vpste", fe718f4d, 0, (), mve_vpt),
25374 ToC("vpsttt", fe314f4d, 0, (), mve_vpt),
25375 ToC("vpstte", fe31cf4d, 0, (), mve_vpt),
25376 ToC("vpstet", fe71cf4d, 0, (), mve_vpt),
25377 ToC("vpstee", fe714f4d, 0, (), mve_vpt),
25378 ToC("vpstttt", fe312f4d, 0, (), mve_vpt),
25379 ToC("vpsttte", fe316f4d, 0, (), mve_vpt),
25380 ToC("vpsttet", fe31ef4d, 0, (), mve_vpt),
25381 ToC("vpsttee", fe31af4d, 0, (), mve_vpt),
25382 ToC("vpstett", fe71af4d, 0, (), mve_vpt),
25383 ToC("vpstete", fe71ef4d, 0, (), mve_vpt),
25384 ToC("vpsteet", fe716f4d, 0, (), mve_vpt),
25385 ToC("vpsteee", fe712f4d, 0, (), mve_vpt),
25387 /* MVE and MVE FP only. */
25388 mToC("vhcadd", ee000f00, 4, (RMQ, RMQ, RMQ, EXPi), mve_vhcadd),
25389 mCEF(vadc, _vadc, 3, (RMQ, RMQ, RMQ), mve_vadc),
25390 mCEF(vadci, _vadci, 3, (RMQ, RMQ, RMQ), mve_vadc),
25391 mToC("vsbc", fe300f00, 3, (RMQ, RMQ, RMQ), mve_vsbc),
25392 mToC("vsbci", fe301f00, 3, (RMQ, RMQ, RMQ), mve_vsbc),
25393 mCEF(vmullb, _vmullb, 3, (RMQ, RMQ, RMQ), mve_vmull),
25394 mCEF(vabav, _vabav, 3, (RRnpcsp, RMQ, RMQ), mve_vabav),
25395 mCEF(vmladav, _vmladav, 3, (RRe, RMQ, RMQ), mve_vmladav),
25396 mCEF(vmladava, _vmladava, 3, (RRe, RMQ, RMQ), mve_vmladav),
25397 mCEF(vmladavx, _vmladavx, 3, (RRe, RMQ, RMQ), mve_vmladav),
25398 mCEF(vmladavax, _vmladavax, 3, (RRe, RMQ, RMQ), mve_vmladav),
25399 mCEF(vmlav, _vmladav, 3, (RRe, RMQ, RMQ), mve_vmladav),
25400 mCEF(vmlava, _vmladava, 3, (RRe, RMQ, RMQ), mve_vmladav),
25401 mCEF(vmlsdav, _vmlsdav, 3, (RRe, RMQ, RMQ), mve_vmladav),
25402 mCEF(vmlsdava, _vmlsdava, 3, (RRe, RMQ, RMQ), mve_vmladav),
25403 mCEF(vmlsdavx, _vmlsdavx, 3, (RRe, RMQ, RMQ), mve_vmladav),
25404 mCEF(vmlsdavax, _vmlsdavax, 3, (RRe, RMQ, RMQ), mve_vmladav),
25406 mCEF(vst20, _vst20, 2, (MSTRLST2, ADDRMVE), mve_vst_vld),
25407 mCEF(vst21, _vst21, 2, (MSTRLST2, ADDRMVE), mve_vst_vld),
25408 mCEF(vst40, _vst40, 2, (MSTRLST4, ADDRMVE), mve_vst_vld),
25409 mCEF(vst41, _vst41, 2, (MSTRLST4, ADDRMVE), mve_vst_vld),
25410 mCEF(vst42, _vst42, 2, (MSTRLST4, ADDRMVE), mve_vst_vld),
25411 mCEF(vst43, _vst43, 2, (MSTRLST4, ADDRMVE), mve_vst_vld),
25412 mCEF(vld20, _vld20, 2, (MSTRLST2, ADDRMVE), mve_vst_vld),
25413 mCEF(vld21, _vld21, 2, (MSTRLST2, ADDRMVE), mve_vst_vld),
25414 mCEF(vld40, _vld40, 2, (MSTRLST4, ADDRMVE), mve_vst_vld),
25415 mCEF(vld41, _vld41, 2, (MSTRLST4, ADDRMVE), mve_vst_vld),
25416 mCEF(vld42, _vld42, 2, (MSTRLST4, ADDRMVE), mve_vst_vld),
25417 mCEF(vld43, _vld43, 2, (MSTRLST4, ADDRMVE), mve_vst_vld),
25418 mCEF(vstrb, _vstrb, 2, (RMQ, ADDRMVE), mve_vstr_vldr),
25419 mCEF(vstrh, _vstrh, 2, (RMQ, ADDRMVE), mve_vstr_vldr),
25420 mCEF(vstrw, _vstrw, 2, (RMQ, ADDRMVE), mve_vstr_vldr),
25421 mCEF(vstrd, _vstrd, 2, (RMQ, ADDRMVE), mve_vstr_vldr),
25422 mCEF(vldrb, _vldrb, 2, (RMQ, ADDRMVE), mve_vstr_vldr),
25423 mCEF(vldrh, _vldrh, 2, (RMQ, ADDRMVE), mve_vstr_vldr),
25424 mCEF(vldrw, _vldrw, 2, (RMQ, ADDRMVE), mve_vstr_vldr),
25425 mCEF(vldrd, _vldrd, 2, (RMQ, ADDRMVE), mve_vstr_vldr),
25427 mCEF(vmovnt, _vmovnt, 2, (RMQ, RMQ), mve_movn),
25428 mCEF(vmovnb, _vmovnb, 2, (RMQ, RMQ), mve_movn),
25429 mCEF(vbrsr, _vbrsr, 3, (RMQ, RMQ, RR), mve_vbrsr),
25430 mCEF(vaddlv, _vaddlv, 3, (RRe, RRo, RMQ), mve_vaddlv),
25431 mCEF(vaddlva, _vaddlva, 3, (RRe, RRo, RMQ), mve_vaddlv),
25432 mCEF(vaddv, _vaddv, 2, (RRe, RMQ), mve_vaddv),
25433 mCEF(vaddva, _vaddva, 2, (RRe, RMQ), mve_vaddv),
25434 mCEF(vddup, _vddup, 3, (RMQ, RRe, EXPi), mve_viddup),
25435 mCEF(vdwdup, _vdwdup, 4, (RMQ, RRe, RR, EXPi), mve_viddup),
25436 mCEF(vidup, _vidup, 3, (RMQ, RRe, EXPi), mve_viddup),
25437 mCEF(viwdup, _viwdup, 4, (RMQ, RRe, RR, EXPi), mve_viddup),
25438 mToC("vmaxa", ee330e81, 2, (RMQ, RMQ), mve_vmaxa_vmina),
25439 mToC("vmina", ee331e81, 2, (RMQ, RMQ), mve_vmaxa_vmina),
25440 mCEF(vmaxv, _vmaxv, 2, (RR, RMQ), mve_vmaxv),
25441 mCEF(vmaxav, _vmaxav, 2, (RR, RMQ), mve_vmaxv),
25442 mCEF(vminv, _vminv, 2, (RR, RMQ), mve_vmaxv),
25443 mCEF(vminav, _vminav, 2, (RR, RMQ), mve_vmaxv),
25445 mCEF(vmlaldav, _vmlaldav, 4, (RRe, RRo, RMQ, RMQ), mve_vmlaldav),
25446 mCEF(vmlaldava, _vmlaldava, 4, (RRe, RRo, RMQ, RMQ), mve_vmlaldav),
25447 mCEF(vmlaldavx, _vmlaldavx, 4, (RRe, RRo, RMQ, RMQ), mve_vmlaldav),
25448 mCEF(vmlaldavax, _vmlaldavax, 4, (RRe, RRo, RMQ, RMQ), mve_vmlaldav),
25449 mCEF(vmlalv, _vmlaldav, 4, (RRe, RRo, RMQ, RMQ), mve_vmlaldav),
25450 mCEF(vmlalva, _vmlaldava, 4, (RRe, RRo, RMQ, RMQ), mve_vmlaldav),
25451 mCEF(vmlsldav, _vmlsldav, 4, (RRe, RRo, RMQ, RMQ), mve_vmlaldav),
25452 mCEF(vmlsldava, _vmlsldava, 4, (RRe, RRo, RMQ, RMQ), mve_vmlaldav),
25453 mCEF(vmlsldavx, _vmlsldavx, 4, (RRe, RRo, RMQ, RMQ), mve_vmlaldav),
25454 mCEF(vmlsldavax, _vmlsldavax, 4, (RRe, RRo, RMQ, RMQ), mve_vmlaldav),
25455 mToC("vrmlaldavh", ee800f00, 4, (RRe, RR, RMQ, RMQ), mve_vrmlaldavh),
25456 mToC("vrmlaldavha",ee800f20, 4, (RRe, RR, RMQ, RMQ), mve_vrmlaldavh),
25457 mCEF(vrmlaldavhx, _vrmlaldavhx, 4, (RRe, RR, RMQ, RMQ), mve_vrmlaldavh),
25458 mCEF(vrmlaldavhax, _vrmlaldavhax, 4, (RRe, RR, RMQ, RMQ), mve_vrmlaldavh),
25459 mToC("vrmlalvh", ee800f00, 4, (RRe, RR, RMQ, RMQ), mve_vrmlaldavh),
25460 mToC("vrmlalvha", ee800f20, 4, (RRe, RR, RMQ, RMQ), mve_vrmlaldavh),
25461 mCEF(vrmlsldavh, _vrmlsldavh, 4, (RRe, RR, RMQ, RMQ), mve_vrmlaldavh),
25462 mCEF(vrmlsldavha, _vrmlsldavha, 4, (RRe, RR, RMQ, RMQ), mve_vrmlaldavh),
25463 mCEF(vrmlsldavhx, _vrmlsldavhx, 4, (RRe, RR, RMQ, RMQ), mve_vrmlaldavh),
25464 mCEF(vrmlsldavhax, _vrmlsldavhax, 4, (RRe, RR, RMQ, RMQ), mve_vrmlaldavh),
25466 mToC("vmlas", ee011e40, 3, (RMQ, RMQ, RR), mve_vmlas),
25467 mToC("vmulh", ee010e01, 3, (RMQ, RMQ, RMQ), mve_vmulh),
25468 mToC("vrmulh", ee011e01, 3, (RMQ, RMQ, RMQ), mve_vmulh),
25469 mToC("vpnot", fe310f4d, 0, (), mve_vpnot),
25470 mToC("vpsel", fe310f01, 3, (RMQ, RMQ, RMQ), mve_vpsel),
25472 mToC("vqdmladh", ee000e00, 3, (RMQ, RMQ, RMQ), mve_vqdmladh),
25473 mToC("vqdmladhx", ee001e00, 3, (RMQ, RMQ, RMQ), mve_vqdmladh),
25474 mToC("vqrdmladh", ee000e01, 3, (RMQ, RMQ, RMQ), mve_vqdmladh),
25475 mToC("vqrdmladhx",ee001e01, 3, (RMQ, RMQ, RMQ), mve_vqdmladh),
25476 mToC("vqdmlsdh", fe000e00, 3, (RMQ, RMQ, RMQ), mve_vqdmladh),
25477 mToC("vqdmlsdhx", fe001e00, 3, (RMQ, RMQ, RMQ), mve_vqdmladh),
25478 mToC("vqrdmlsdh", fe000e01, 3, (RMQ, RMQ, RMQ), mve_vqdmladh),
25479 mToC("vqrdmlsdhx",fe001e01, 3, (RMQ, RMQ, RMQ), mve_vqdmladh),
25480 mToC("vqdmlah", ee000e60, 3, (RMQ, RMQ, RR), mve_vqdmlah),
25481 mToC("vqdmlash", ee001e60, 3, (RMQ, RMQ, RR), mve_vqdmlah),
25482 mToC("vqrdmlash", ee001e40, 3, (RMQ, RMQ, RR), mve_vqdmlah),
25483 mToC("vqdmullt", ee301f00, 3, (RMQ, RMQ, RMQRR), mve_vqdmull),
25484 mToC("vqdmullb", ee300f00, 3, (RMQ, RMQ, RMQRR), mve_vqdmull),
25485 mCEF(vqmovnt, _vqmovnt, 2, (RMQ, RMQ), mve_vqmovn),
25486 mCEF(vqmovnb, _vqmovnb, 2, (RMQ, RMQ), mve_vqmovn),
25487 mCEF(vqmovunt, _vqmovunt, 2, (RMQ, RMQ), mve_vqmovn),
25488 mCEF(vqmovunb, _vqmovunb, 2, (RMQ, RMQ), mve_vqmovn),
25490 mCEF(vshrnt, _vshrnt, 3, (RMQ, RMQ, I32z), mve_vshrn),
25491 mCEF(vshrnb, _vshrnb, 3, (RMQ, RMQ, I32z), mve_vshrn),
25492 mCEF(vrshrnt, _vrshrnt, 3, (RMQ, RMQ, I32z), mve_vshrn),
25493 mCEF(vrshrnb, _vrshrnb, 3, (RMQ, RMQ, I32z), mve_vshrn),
25494 mCEF(vqshrnt, _vqrshrnt, 3, (RMQ, RMQ, I32z), mve_vshrn),
25495 mCEF(vqshrnb, _vqrshrnb, 3, (RMQ, RMQ, I32z), mve_vshrn),
25496 mCEF(vqshrunt, _vqrshrunt, 3, (RMQ, RMQ, I32z), mve_vshrn),
25497 mCEF(vqshrunb, _vqrshrunb, 3, (RMQ, RMQ, I32z), mve_vshrn),
25498 mCEF(vqrshrnt, _vqrshrnt, 3, (RMQ, RMQ, I32z), mve_vshrn),
25499 mCEF(vqrshrnb, _vqrshrnb, 3, (RMQ, RMQ, I32z), mve_vshrn),
25500 mCEF(vqrshrunt, _vqrshrunt, 3, (RMQ, RMQ, I32z), mve_vshrn),
25501 mCEF(vqrshrunb, _vqrshrunb, 3, (RMQ, RMQ, I32z), mve_vshrn),
25503 mToC("vshlc", eea00fc0, 3, (RMQ, RR, I32z), mve_vshlc),
25504 mToC("vshllt", ee201e00, 3, (RMQ, RMQ, I32), mve_vshll),
25505 mToC("vshllb", ee200e00, 3, (RMQ, RMQ, I32), mve_vshll),
25507 toU("dlstp", _dlstp, 2, (LR, RR), t_loloop),
25508 toU("wlstp", _wlstp, 3, (LR, RR, EXP), t_loloop),
25509 toU("letp", _letp, 2, (LR, EXP), t_loloop),
25510 toU("lctp", _lctp, 0, (), t_loloop),
25512 #undef THUMB_VARIANT
25513 #define THUMB_VARIANT & mve_fp_ext
25514 mToC("vcmul", ee300e00, 4, (RMQ, RMQ, RMQ, EXPi), mve_vcmul),
25515 mToC("vfmas", ee311e40, 3, (RMQ, RMQ, RR), mve_vfmas),
25516 mToC("vmaxnma", ee3f0e81, 2, (RMQ, RMQ), mve_vmaxnma_vminnma),
25517 mToC("vminnma", ee3f1e81, 2, (RMQ, RMQ), mve_vmaxnma_vminnma),
25518 mToC("vmaxnmv", eeee0f00, 2, (RR, RMQ), mve_vmaxnmv),
25519 mToC("vmaxnmav",eeec0f00, 2, (RR, RMQ), mve_vmaxnmv),
25520 mToC("vminnmv", eeee0f80, 2, (RR, RMQ), mve_vmaxnmv),
25521 mToC("vminnmav",eeec0f80, 2, (RR, RMQ), mve_vmaxnmv),
25524 #define ARM_VARIANT & fpu_vfp_ext_v1
25525 #undef THUMB_VARIANT
25526 #define THUMB_VARIANT & arm_ext_v6t2
25527 mnCEF(vmla, _vmla, 3, (RNSDQMQ, oRNSDQMQ, RNSDQ_RNSC_MQ_RR), neon_mac_maybe_scalar),
25528 mnCEF(vmul, _vmul, 3, (RNSDQMQ, oRNSDQMQ, RNSDQ_RNSC_MQ_RR), neon_mul),
25530 mcCE(fcpyd, eb00b40, 2, (RVD, RVD), vfp_dp_rd_rm),
25533 #define ARM_VARIANT & fpu_vfp_ext_v1xd
25535 MNCE(vmov, 0, 1, (VMOV), neon_mov),
25536 mcCE(fmrs, e100a10, 2, (RR, RVS), vfp_reg_from_sp),
25537 mcCE(fmsr, e000a10, 2, (RVS, RR), vfp_sp_from_reg),
25538 mcCE(fcpys, eb00a40, 2, (RVS, RVS), vfp_sp_monadic),
25540 mCEF(vmullt, _vmullt, 3, (RNSDQMQ, oRNSDQMQ, RNSDQ_RNSC_MQ), mve_vmull),
25541 mnCEF(vadd, _vadd, 3, (RNSDQMQ, oRNSDQMQ, RNSDQMQR), neon_addsub_if_i),
25542 mnCEF(vsub, _vsub, 3, (RNSDQMQ, oRNSDQMQ, RNSDQMQR), neon_addsub_if_i),
25544 MNCEF(vabs, 1b10300, 2, (RNSDQMQ, RNSDQMQ), neon_abs_neg),
25545 MNCEF(vneg, 1b10380, 2, (RNSDQMQ, RNSDQMQ), neon_abs_neg),
25547 mCEF(vmovlt, _vmovlt, 1, (VMOV), mve_movl),
25548 mCEF(vmovlb, _vmovlb, 1, (VMOV), mve_movl),
25550 mnCE(vcmp, _vcmp, 3, (RVSD_COND, RSVDMQ_FI0, oRMQRZ), vfp_nsyn_cmp),
25551 mnCE(vcmpe, _vcmpe, 3, (RVSD_COND, RSVDMQ_FI0, oRMQRZ), vfp_nsyn_cmp),
25554 #define ARM_VARIANT & fpu_vfp_ext_v2
25556 mcCE(fmsrr, c400a10, 3, (VRSLST, RR, RR), vfp_sp2_from_reg2),
25557 mcCE(fmrrs, c500a10, 3, (RR, RR, VRSLST), vfp_reg2_from_sp2),
25558 mcCE(fmdrr, c400b10, 3, (RVD, RR, RR), vfp_dp_rm_rd_rn),
25559 mcCE(fmrrd, c500b10, 3, (RR, RR, RVD), vfp_dp_rd_rn_rm),
25562 #define ARM_VARIANT & fpu_vfp_ext_armv8xd
25563 mnUF(vcvta, _vcvta, 2, (RNSDQMQ, oRNSDQMQ), neon_cvta),
25564 mnUF(vcvtp, _vcvta, 2, (RNSDQMQ, oRNSDQMQ), neon_cvtp),
25565 mnUF(vcvtn, _vcvta, 3, (RNSDQMQ, oRNSDQMQ, oI32z), neon_cvtn),
25566 mnUF(vcvtm, _vcvta, 2, (RNSDQMQ, oRNSDQMQ), neon_cvtm),
25567 mnUF(vmaxnm, _vmaxnm, 3, (RNSDQMQ, oRNSDQMQ, RNSDQMQ), vmaxnm),
25568 mnUF(vminnm, _vminnm, 3, (RNSDQMQ, oRNSDQMQ, RNSDQMQ), vmaxnm),
25571 #define ARM_VARIANT & fpu_neon_ext_v1
25572 mnUF(vabd, _vabd, 3, (RNDQMQ, oRNDQMQ, RNDQMQ), neon_dyadic_if_su),
25573 mnUF(vabdl, _vabdl, 3, (RNQMQ, RNDMQ, RNDMQ), neon_dyadic_long),
25574 mnUF(vaddl, _vaddl, 3, (RNQMQ, RNDMQ, RNDMQR), neon_dyadic_long),
25575 mnUF(vsubl, _vsubl, 3, (RNQMQ, RNDMQ, RNDMQR), neon_dyadic_long),
25576 mnUF(vand, _vand, 3, (RNDQMQ, oRNDQMQ, RNDQMQ_Ibig), neon_logic),
25577 mnUF(vbic, _vbic, 3, (RNDQMQ, oRNDQMQ, RNDQMQ_Ibig), neon_logic),
25578 mnUF(vorr, _vorr, 3, (RNDQMQ, oRNDQMQ, RNDQMQ_Ibig), neon_logic),
25579 mnUF(vorn, _vorn, 3, (RNDQMQ, oRNDQMQ, RNDQMQ_Ibig), neon_logic),
25580 mnUF(veor, _veor, 3, (RNDQMQ, oRNDQMQ, RNDQMQ), neon_logic),
25581 MNUF(vcls, 1b00400, 2, (RNDQMQ, RNDQMQ), neon_cls),
25582 MNUF(vclz, 1b00480, 2, (RNDQMQ, RNDQMQ), neon_clz),
25583 mnCE(vdup, _vdup, 2, (RNDQMQ, RR_RNSC), neon_dup),
25584 MNUF(vhadd, 00000000, 3, (RNDQMQ, oRNDQMQ, RNDQMQR), neon_dyadic_i_su),
25585 MNUF(vrhadd, 00000100, 3, (RNDQMQ, oRNDQMQ, RNDQMQ), neon_dyadic_i_su),
25586 MNUF(vhsub, 00000200, 3, (RNDQMQ, oRNDQMQ, RNDQMQR), neon_dyadic_i_su),
25587 mnUF(vmin, _vmin, 3, (RNDQMQ, oRNDQMQ, RNDQMQ), neon_dyadic_if_su),
25588 mnUF(vmax, _vmax, 3, (RNDQMQ, oRNDQMQ, RNDQMQ), neon_dyadic_if_su),
25589 MNUF(vqadd, 0000010, 3, (RNDQMQ, oRNDQMQ, RNDQMQR), neon_dyadic_i64_su),
25590 MNUF(vqsub, 0000210, 3, (RNDQMQ, oRNDQMQ, RNDQMQR), neon_dyadic_i64_su),
25591 mnUF(vmvn, _vmvn, 2, (RNDQMQ, RNDQMQ_Ibig), neon_mvn),
25592 MNUF(vqabs, 1b00700, 2, (RNDQMQ, RNDQMQ), neon_sat_abs_neg),
25593 MNUF(vqneg, 1b00780, 2, (RNDQMQ, RNDQMQ), neon_sat_abs_neg),
25594 mnUF(vqrdmlah, _vqrdmlah,3, (RNDQMQ, oRNDQMQ, RNDQ_RNSC_RR), neon_qrdmlah),
25595 mnUF(vqdmulh, _vqdmulh, 3, (RNDQMQ, oRNDQMQ, RNDQMQ_RNSC_RR), neon_qdmulh),
25596 mnUF(vqrdmulh, _vqrdmulh,3, (RNDQMQ, oRNDQMQ, RNDQMQ_RNSC_RR), neon_qdmulh),
25597 MNUF(vqrshl, 0000510, 3, (RNDQMQ, oRNDQMQ, RNDQMQR), neon_rshl),
25598 MNUF(vrshl, 0000500, 3, (RNDQMQ, oRNDQMQ, RNDQMQR), neon_rshl),
25599 MNUF(vshr, 0800010, 3, (RNDQMQ, oRNDQMQ, I64z), neon_rshift_round_imm),
25600 MNUF(vrshr, 0800210, 3, (RNDQMQ, oRNDQMQ, I64z), neon_rshift_round_imm),
25601 MNUF(vsli, 1800510, 3, (RNDQMQ, oRNDQMQ, I63), neon_sli),
25602 MNUF(vsri, 1800410, 3, (RNDQMQ, oRNDQMQ, I64z), neon_sri),
25603 MNUF(vrev64, 1b00000, 2, (RNDQMQ, RNDQMQ), neon_rev),
25604 MNUF(vrev32, 1b00080, 2, (RNDQMQ, RNDQMQ), neon_rev),
25605 MNUF(vrev16, 1b00100, 2, (RNDQMQ, RNDQMQ), neon_rev),
25606 mnUF(vshl, _vshl, 3, (RNDQMQ, oRNDQMQ, RNDQMQ_I63b_RR), neon_shl),
25607 mnUF(vqshl, _vqshl, 3, (RNDQMQ, oRNDQMQ, RNDQMQ_I63b_RR), neon_qshl),
25608 MNUF(vqshlu, 1800610, 3, (RNDQMQ, oRNDQMQ, I63), neon_qshlu_imm),
25611 #define ARM_VARIANT & arm_ext_v8_3
25612 #undef THUMB_VARIANT
25613 #define THUMB_VARIANT & arm_ext_v6t2_v8m
25614 MNUF (vcadd, 0, 4, (RNDQMQ, RNDQMQ, RNDQMQ, EXPi), vcadd),
25615 MNUF (vcmla, 0, 4, (RNDQMQ, RNDQMQ, RNDQMQ_RNSC, EXPi), vcmla),
25618 #undef THUMB_VARIANT
25650 /* MD interface: bits in the object file. */
25652 /* Turn an integer of n bytes (in val) into a stream of bytes appropriate
25653 for use in the a.out file, and stores them in the array pointed to by buf.
25654 This knows about the endian-ness of the target machine and does
25655 THE RIGHT THING, whatever it is. Possible values for n are 1 (byte)
25656 2 (short) and 4 (long) Floating numbers are put out as a series of
25657 LITTLENUMS (shorts, here at least). */
25660 md_number_to_chars (char * buf, valueT val, int n)
25662 if (target_big_endian)
25663 number_to_chars_bigendian (buf, val, n);
25665 number_to_chars_littleendian (buf, val, n);
25669 md_chars_to_number (char * buf, int n)
25672 unsigned char * where = (unsigned char *) buf;
25674 if (target_big_endian)
25679 result |= (*where++ & 255);
25687 result |= (where[n] & 255);
25694 /* MD interface: Sections. */
25696 /* Calculate the maximum variable size (i.e., excluding fr_fix)
25697 that an rs_machine_dependent frag may reach. */
25700 arm_frag_max_var (fragS *fragp)
25702 /* We only use rs_machine_dependent for variable-size Thumb instructions,
25703 which are either THUMB_SIZE (2) or INSN_SIZE (4).
25705 Note that we generate relaxable instructions even for cases that don't
25706 really need it, like an immediate that's a trivial constant. So we're
25707 overestimating the instruction size for some of those cases. Rather
25708 than putting more intelligence here, it would probably be better to
25709 avoid generating a relaxation frag in the first place when it can be
25710 determined up front that a short instruction will suffice. */
25712 gas_assert (fragp->fr_type == rs_machine_dependent);
25716 /* Estimate the size of a frag before relaxing. Assume everything fits in
25720 md_estimate_size_before_relax (fragS * fragp,
25721 segT segtype ATTRIBUTE_UNUSED)
25727 /* Convert a machine dependent frag. */
25730 md_convert_frag (bfd *abfd, segT asec ATTRIBUTE_UNUSED, fragS *fragp)
25732 unsigned long insn;
25733 unsigned long old_op;
25741 buf = fragp->fr_literal + fragp->fr_fix;
25743 old_op = bfd_get_16(abfd, buf);
25744 if (fragp->fr_symbol)
25746 exp.X_op = O_symbol;
25747 exp.X_add_symbol = fragp->fr_symbol;
25751 exp.X_op = O_constant;
25753 exp.X_add_number = fragp->fr_offset;
25754 opcode = fragp->fr_subtype;
25757 case T_MNEM_ldr_pc:
25758 case T_MNEM_ldr_pc2:
25759 case T_MNEM_ldr_sp:
25760 case T_MNEM_str_sp:
25767 if (fragp->fr_var == 4)
25769 insn = THUMB_OP32 (opcode);
25770 if ((old_op >> 12) == 4 || (old_op >> 12) == 9)
25772 insn |= (old_op & 0x700) << 4;
25776 insn |= (old_op & 7) << 12;
25777 insn |= (old_op & 0x38) << 13;
25779 insn |= 0x00000c00;
25780 put_thumb32_insn (buf, insn);
25781 reloc_type = BFD_RELOC_ARM_T32_OFFSET_IMM;
25785 reloc_type = BFD_RELOC_ARM_THUMB_OFFSET;
25787 pc_rel = (opcode == T_MNEM_ldr_pc2);
25790 if (fragp->fr_var == 4)
25792 insn = THUMB_OP32 (opcode);
25793 insn |= (old_op & 0xf0) << 4;
25794 put_thumb32_insn (buf, insn);
25795 reloc_type = BFD_RELOC_ARM_T32_ADD_PC12;
25799 reloc_type = BFD_RELOC_ARM_THUMB_ADD;
25800 exp.X_add_number -= 4;
25808 if (fragp->fr_var == 4)
25810 int r0off = (opcode == T_MNEM_mov
25811 || opcode == T_MNEM_movs) ? 0 : 8;
25812 insn = THUMB_OP32 (opcode);
25813 insn = (insn & 0xe1ffffff) | 0x10000000;
25814 insn |= (old_op & 0x700) << r0off;
25815 put_thumb32_insn (buf, insn);
25816 reloc_type = BFD_RELOC_ARM_T32_IMMEDIATE;
25820 reloc_type = BFD_RELOC_ARM_THUMB_IMM;
25825 if (fragp->fr_var == 4)
25827 insn = THUMB_OP32(opcode);
25828 put_thumb32_insn (buf, insn);
25829 reloc_type = BFD_RELOC_THUMB_PCREL_BRANCH25;
25832 reloc_type = BFD_RELOC_THUMB_PCREL_BRANCH12;
25836 if (fragp->fr_var == 4)
25838 insn = THUMB_OP32(opcode);
25839 insn |= (old_op & 0xf00) << 14;
25840 put_thumb32_insn (buf, insn);
25841 reloc_type = BFD_RELOC_THUMB_PCREL_BRANCH20;
25844 reloc_type = BFD_RELOC_THUMB_PCREL_BRANCH9;
25847 case T_MNEM_add_sp:
25848 case T_MNEM_add_pc:
25849 case T_MNEM_inc_sp:
25850 case T_MNEM_dec_sp:
25851 if (fragp->fr_var == 4)
25853 /* ??? Choose between add and addw. */
25854 insn = THUMB_OP32 (opcode);
25855 insn |= (old_op & 0xf0) << 4;
25856 put_thumb32_insn (buf, insn);
25857 if (opcode == T_MNEM_add_pc)
25858 reloc_type = BFD_RELOC_ARM_T32_IMM12;
25860 reloc_type = BFD_RELOC_ARM_T32_ADD_IMM;
25863 reloc_type = BFD_RELOC_ARM_THUMB_ADD;
25871 if (fragp->fr_var == 4)
25873 insn = THUMB_OP32 (opcode);
25874 insn |= (old_op & 0xf0) << 4;
25875 insn |= (old_op & 0xf) << 16;
25876 put_thumb32_insn (buf, insn);
25877 if (insn & (1 << 20))
25878 reloc_type = BFD_RELOC_ARM_T32_ADD_IMM;
25880 reloc_type = BFD_RELOC_ARM_T32_IMMEDIATE;
25883 reloc_type = BFD_RELOC_ARM_THUMB_ADD;
25889 fixp = fix_new_exp (fragp, fragp->fr_fix, fragp->fr_var, &exp, pc_rel,
25890 (enum bfd_reloc_code_real) reloc_type);
25891 fixp->fx_file = fragp->fr_file;
25892 fixp->fx_line = fragp->fr_line;
25893 fragp->fr_fix += fragp->fr_var;
25895 /* Set whether we use thumb-2 ISA based on final relaxation results. */
25896 if (thumb_mode && fragp->fr_var == 4 && no_cpu_selected ()
25897 && !ARM_CPU_HAS_FEATURE (thumb_arch_used, arm_arch_t2))
25898 ARM_MERGE_FEATURE_SETS (arm_arch_used, thumb_arch_used, arm_ext_v6t2);
25901 /* Return the size of a relaxable immediate operand instruction.
25902 SHIFT and SIZE specify the form of the allowable immediate. */
25904 relax_immediate (fragS *fragp, int size, int shift)
25910 /* ??? Should be able to do better than this. */
25911 if (fragp->fr_symbol)
25914 low = (1 << shift) - 1;
25915 mask = (1 << (shift + size)) - (1 << shift);
25916 offset = fragp->fr_offset;
25917 /* Force misaligned offsets to 32-bit variant. */
25920 if (offset & ~mask)
25925 /* Get the address of a symbol during relaxation. */
25927 relaxed_symbol_addr (fragS *fragp, long stretch)
25933 sym = fragp->fr_symbol;
25934 sym_frag = symbol_get_frag (sym);
25935 know (S_GET_SEGMENT (sym) != absolute_section
25936 || sym_frag == &zero_address_frag);
25937 addr = S_GET_VALUE (sym) + fragp->fr_offset;
25939 /* If frag has yet to be reached on this pass, assume it will
25940 move by STRETCH just as we did. If this is not so, it will
25941 be because some frag between grows, and that will force
25945 && sym_frag->relax_marker != fragp->relax_marker)
25949 /* Adjust stretch for any alignment frag. Note that if have
25950 been expanding the earlier code, the symbol may be
25951 defined in what appears to be an earlier frag. FIXME:
25952 This doesn't handle the fr_subtype field, which specifies
25953 a maximum number of bytes to skip when doing an
25955 for (f = fragp; f != NULL && f != sym_frag; f = f->fr_next)
25957 if (f->fr_type == rs_align || f->fr_type == rs_align_code)
25960 stretch = - ((- stretch)
25961 & ~ ((1 << (int) f->fr_offset) - 1));
25963 stretch &= ~ ((1 << (int) f->fr_offset) - 1);
25975 /* Return the size of a relaxable adr pseudo-instruction or PC-relative
25978 relax_adr (fragS *fragp, asection *sec, long stretch)
25983 /* Assume worst case for symbols not known to be in the same section. */
25984 if (fragp->fr_symbol == NULL
25985 || !S_IS_DEFINED (fragp->fr_symbol)
25986 || sec != S_GET_SEGMENT (fragp->fr_symbol)
25987 || S_IS_WEAK (fragp->fr_symbol))
25990 val = relaxed_symbol_addr (fragp, stretch);
25991 addr = fragp->fr_address + fragp->fr_fix;
25992 addr = (addr + 4) & ~3;
25993 /* Force misaligned targets to 32-bit variant. */
25997 if (val < 0 || val > 1020)
26002 /* Return the size of a relaxable add/sub immediate instruction. */
26004 relax_addsub (fragS *fragp, asection *sec)
26009 buf = fragp->fr_literal + fragp->fr_fix;
26010 op = bfd_get_16(sec->owner, buf);
26011 if ((op & 0xf) == ((op >> 4) & 0xf))
26012 return relax_immediate (fragp, 8, 0);
26014 return relax_immediate (fragp, 3, 0);
26017 /* Return TRUE iff the definition of symbol S could be pre-empted
26018 (overridden) at link or load time. */
26020 symbol_preemptible (symbolS *s)
26022 /* Weak symbols can always be pre-empted. */
26026 /* Non-global symbols cannot be pre-empted. */
26027 if (! S_IS_EXTERNAL (s))
26031 /* In ELF, a global symbol can be marked protected, or private. In that
26032 case it can't be pre-empted (other definitions in the same link unit
26033 would violate the ODR). */
26034 if (ELF_ST_VISIBILITY (S_GET_OTHER (s)) > STV_DEFAULT)
26038 /* Other global symbols might be pre-empted. */
26042 /* Return the size of a relaxable branch instruction. BITS is the
26043 size of the offset field in the narrow instruction. */
26046 relax_branch (fragS *fragp, asection *sec, int bits, long stretch)
26052 /* Assume worst case for symbols not known to be in the same section. */
26053 if (!S_IS_DEFINED (fragp->fr_symbol)
26054 || sec != S_GET_SEGMENT (fragp->fr_symbol)
26055 || S_IS_WEAK (fragp->fr_symbol))
26059 /* A branch to a function in ARM state will require interworking. */
26060 if (S_IS_DEFINED (fragp->fr_symbol)
26061 && ARM_IS_FUNC (fragp->fr_symbol))
26065 if (symbol_preemptible (fragp->fr_symbol))
26068 val = relaxed_symbol_addr (fragp, stretch);
26069 addr = fragp->fr_address + fragp->fr_fix + 4;
26072 /* Offset is a signed value *2 */
26074 if (val >= limit || val < -limit)
26080 /* Relax a machine dependent frag. This returns the amount by which
26081 the current size of the frag should change. */
26084 arm_relax_frag (asection *sec, fragS *fragp, long stretch)
26089 oldsize = fragp->fr_var;
26090 switch (fragp->fr_subtype)
26092 case T_MNEM_ldr_pc2:
26093 newsize = relax_adr (fragp, sec, stretch);
26095 case T_MNEM_ldr_pc:
26096 case T_MNEM_ldr_sp:
26097 case T_MNEM_str_sp:
26098 newsize = relax_immediate (fragp, 8, 2);
26102 newsize = relax_immediate (fragp, 5, 2);
26106 newsize = relax_immediate (fragp, 5, 1);
26110 newsize = relax_immediate (fragp, 5, 0);
26113 newsize = relax_adr (fragp, sec, stretch);
26119 newsize = relax_immediate (fragp, 8, 0);
26122 newsize = relax_branch (fragp, sec, 11, stretch);
26125 newsize = relax_branch (fragp, sec, 8, stretch);
26127 case T_MNEM_add_sp:
26128 case T_MNEM_add_pc:
26129 newsize = relax_immediate (fragp, 8, 2);
26131 case T_MNEM_inc_sp:
26132 case T_MNEM_dec_sp:
26133 newsize = relax_immediate (fragp, 7, 2);
26139 newsize = relax_addsub (fragp, sec);
26145 fragp->fr_var = newsize;
26146 /* Freeze wide instructions that are at or before the same location as
26147 in the previous pass. This avoids infinite loops.
26148 Don't freeze them unconditionally because targets may be artificially
26149 misaligned by the expansion of preceding frags. */
26150 if (stretch <= 0 && newsize > 2)
26152 md_convert_frag (sec->owner, sec, fragp);
26156 return newsize - oldsize;
26159 /* Round up a section size to the appropriate boundary. */
26162 md_section_align (segT segment ATTRIBUTE_UNUSED,
26168 /* This is called from HANDLE_ALIGN in write.c. Fill in the contents
26169 of an rs_align_code fragment. */
26172 arm_handle_align (fragS * fragP)
26174 static unsigned char const arm_noop[2][2][4] =
26177 {0x00, 0x00, 0xa0, 0xe1}, /* LE */
26178 {0xe1, 0xa0, 0x00, 0x00}, /* BE */
26181 {0x00, 0xf0, 0x20, 0xe3}, /* LE */
26182 {0xe3, 0x20, 0xf0, 0x00}, /* BE */
26185 static unsigned char const thumb_noop[2][2][2] =
26188 {0xc0, 0x46}, /* LE */
26189 {0x46, 0xc0}, /* BE */
26192 {0x00, 0xbf}, /* LE */
26193 {0xbf, 0x00} /* BE */
26196 static unsigned char const wide_thumb_noop[2][4] =
26197 { /* Wide Thumb-2 */
26198 {0xaf, 0xf3, 0x00, 0x80}, /* LE */
26199 {0xf3, 0xaf, 0x80, 0x00}, /* BE */
26202 unsigned bytes, fix, noop_size;
26204 const unsigned char * noop;
26205 const unsigned char *narrow_noop = NULL;
26210 if (fragP->fr_type != rs_align_code)
26213 bytes = fragP->fr_next->fr_address - fragP->fr_address - fragP->fr_fix;
26214 p = fragP->fr_literal + fragP->fr_fix;
26217 if (bytes > MAX_MEM_FOR_RS_ALIGN_CODE)
26218 bytes &= MAX_MEM_FOR_RS_ALIGN_CODE;
26220 gas_assert ((fragP->tc_frag_data.thumb_mode & MODE_RECORDED) != 0);
26222 if (fragP->tc_frag_data.thumb_mode & (~ MODE_RECORDED))
26224 if (ARM_CPU_HAS_FEATURE (selected_cpu_name[0]
26225 ? selected_cpu : arm_arch_none, arm_ext_v6t2))
26227 narrow_noop = thumb_noop[1][target_big_endian];
26228 noop = wide_thumb_noop[target_big_endian];
26231 noop = thumb_noop[0][target_big_endian];
26239 noop = arm_noop[ARM_CPU_HAS_FEATURE (selected_cpu_name[0]
26240 ? selected_cpu : arm_arch_none,
26242 [target_big_endian];
26249 fragP->fr_var = noop_size;
26251 if (bytes & (noop_size - 1))
26253 fix = bytes & (noop_size - 1);
26255 insert_data_mapping_symbol (state, fragP->fr_fix, fragP, fix);
26257 memset (p, 0, fix);
26264 if (bytes & noop_size)
26266 /* Insert a narrow noop. */
26267 memcpy (p, narrow_noop, noop_size);
26269 bytes -= noop_size;
26273 /* Use wide noops for the remainder */
26277 while (bytes >= noop_size)
26279 memcpy (p, noop, noop_size);
26281 bytes -= noop_size;
26285 fragP->fr_fix += fix;
26288 /* Called from md_do_align. Used to create an alignment
26289 frag in a code section. */
26292 arm_frag_align_code (int n, int max)
26296 /* We assume that there will never be a requirement
26297 to support alignments greater than MAX_MEM_FOR_RS_ALIGN_CODE bytes. */
26298 if (max > MAX_MEM_FOR_RS_ALIGN_CODE)
26303 _("alignments greater than %d bytes not supported in .text sections."),
26304 MAX_MEM_FOR_RS_ALIGN_CODE + 1);
26305 as_fatal ("%s", err_msg);
26308 p = frag_var (rs_align_code,
26309 MAX_MEM_FOR_RS_ALIGN_CODE,
26311 (relax_substateT) max,
26318 /* Perform target specific initialisation of a frag.
26319 Note - despite the name this initialisation is not done when the frag
26320 is created, but only when its type is assigned. A frag can be created
26321 and used a long time before its type is set, so beware of assuming that
26322 this initialisation is performed first. */
26326 arm_init_frag (fragS * fragP, int max_chars ATTRIBUTE_UNUSED)
26328 /* Record whether this frag is in an ARM or a THUMB area. */
26329 fragP->tc_frag_data.thumb_mode = thumb_mode | MODE_RECORDED;
26332 #else /* OBJ_ELF is defined. */
26334 arm_init_frag (fragS * fragP, int max_chars)
26336 bfd_boolean frag_thumb_mode;
26338 /* If the current ARM vs THUMB mode has not already
26339 been recorded into this frag then do so now. */
26340 if ((fragP->tc_frag_data.thumb_mode & MODE_RECORDED) == 0)
26341 fragP->tc_frag_data.thumb_mode = thumb_mode | MODE_RECORDED;
26343 /* PR 21809: Do not set a mapping state for debug sections
26344 - it just confuses other tools. */
26345 if (bfd_get_section_flags (NULL, now_seg) & SEC_DEBUGGING)
26348 frag_thumb_mode = fragP->tc_frag_data.thumb_mode ^ MODE_RECORDED;
26350 /* Record a mapping symbol for alignment frags. We will delete this
26351 later if the alignment ends up empty. */
26352 switch (fragP->fr_type)
26355 case rs_align_test:
26357 mapping_state_2 (MAP_DATA, max_chars);
26359 case rs_align_code:
26360 mapping_state_2 (frag_thumb_mode ? MAP_THUMB : MAP_ARM, max_chars);
26367 /* When we change sections we need to issue a new mapping symbol. */
26370 arm_elf_change_section (void)
26372 /* Link an unlinked unwind index table section to the .text section. */
26373 if (elf_section_type (now_seg) == SHT_ARM_EXIDX
26374 && elf_linked_to_section (now_seg) == NULL)
26375 elf_linked_to_section (now_seg) = text_section;
26379 arm_elf_section_type (const char * str, size_t len)
26381 if (len == 5 && strncmp (str, "exidx", 5) == 0)
26382 return SHT_ARM_EXIDX;
26387 /* Code to deal with unwinding tables. */
26389 static void add_unwind_adjustsp (offsetT);
26391 /* Generate any deferred unwind frame offset. */
26394 flush_pending_unwind (void)
26398 offset = unwind.pending_offset;
26399 unwind.pending_offset = 0;
26401 add_unwind_adjustsp (offset);
26404 /* Add an opcode to this list for this function. Two-byte opcodes should
26405 be passed as op[0] << 8 | op[1]. The list of opcodes is built in reverse
26409 add_unwind_opcode (valueT op, int length)
26411 /* Add any deferred stack adjustment. */
26412 if (unwind.pending_offset)
26413 flush_pending_unwind ();
26415 unwind.sp_restored = 0;
26417 if (unwind.opcode_count + length > unwind.opcode_alloc)
26419 unwind.opcode_alloc += ARM_OPCODE_CHUNK_SIZE;
26420 if (unwind.opcodes)
26421 unwind.opcodes = XRESIZEVEC (unsigned char, unwind.opcodes,
26422 unwind.opcode_alloc);
26424 unwind.opcodes = XNEWVEC (unsigned char, unwind.opcode_alloc);
26429 unwind.opcodes[unwind.opcode_count] = op & 0xff;
26431 unwind.opcode_count++;
26435 /* Add unwind opcodes to adjust the stack pointer. */
26438 add_unwind_adjustsp (offsetT offset)
26442 if (offset > 0x200)
26444 /* We need at most 5 bytes to hold a 32-bit value in a uleb128. */
26449 /* Long form: 0xb2, uleb128. */
26450 /* This might not fit in a word so add the individual bytes,
26451 remembering the list is built in reverse order. */
26452 o = (valueT) ((offset - 0x204) >> 2);
26454 add_unwind_opcode (0, 1);
26456 /* Calculate the uleb128 encoding of the offset. */
26460 bytes[n] = o & 0x7f;
26466 /* Add the insn. */
26468 add_unwind_opcode (bytes[n - 1], 1);
26469 add_unwind_opcode (0xb2, 1);
26471 else if (offset > 0x100)
26473 /* Two short opcodes. */
26474 add_unwind_opcode (0x3f, 1);
26475 op = (offset - 0x104) >> 2;
26476 add_unwind_opcode (op, 1);
26478 else if (offset > 0)
26480 /* Short opcode. */
26481 op = (offset - 4) >> 2;
26482 add_unwind_opcode (op, 1);
26484 else if (offset < 0)
26487 while (offset > 0x100)
26489 add_unwind_opcode (0x7f, 1);
26492 op = ((offset - 4) >> 2) | 0x40;
26493 add_unwind_opcode (op, 1);
26497 /* Finish the list of unwind opcodes for this function. */
26500 finish_unwind_opcodes (void)
26504 if (unwind.fp_used)
26506 /* Adjust sp as necessary. */
26507 unwind.pending_offset += unwind.fp_offset - unwind.frame_size;
26508 flush_pending_unwind ();
26510 /* After restoring sp from the frame pointer. */
26511 op = 0x90 | unwind.fp_reg;
26512 add_unwind_opcode (op, 1);
26515 flush_pending_unwind ();
26519 /* Start an exception table entry. If idx is nonzero this is an index table
26523 start_unwind_section (const segT text_seg, int idx)
26525 const char * text_name;
26526 const char * prefix;
26527 const char * prefix_once;
26528 const char * group_name;
26536 prefix = ELF_STRING_ARM_unwind;
26537 prefix_once = ELF_STRING_ARM_unwind_once;
26538 type = SHT_ARM_EXIDX;
26542 prefix = ELF_STRING_ARM_unwind_info;
26543 prefix_once = ELF_STRING_ARM_unwind_info_once;
26544 type = SHT_PROGBITS;
26547 text_name = segment_name (text_seg);
26548 if (streq (text_name, ".text"))
26551 if (strncmp (text_name, ".gnu.linkonce.t.",
26552 strlen (".gnu.linkonce.t.")) == 0)
26554 prefix = prefix_once;
26555 text_name += strlen (".gnu.linkonce.t.");
26558 sec_name = concat (prefix, text_name, (char *) NULL);
26564 /* Handle COMDAT group. */
26565 if (prefix != prefix_once && (text_seg->flags & SEC_LINK_ONCE) != 0)
26567 group_name = elf_group_name (text_seg);
26568 if (group_name == NULL)
26570 as_bad (_("Group section `%s' has no group signature"),
26571 segment_name (text_seg));
26572 ignore_rest_of_line ();
26575 flags |= SHF_GROUP;
26579 obj_elf_change_section (sec_name, type, 0, flags, 0, group_name,
26582 /* Set the section link for index tables. */
26584 elf_linked_to_section (now_seg) = text_seg;
26588 /* Start an unwind table entry. HAVE_DATA is nonzero if we have additional
26589 personality routine data. Returns zero, or the index table value for
26590 an inline entry. */
26593 create_unwind_entry (int have_data)
26598 /* The current word of data. */
26600 /* The number of bytes left in this word. */
26603 finish_unwind_opcodes ();
26605 /* Remember the current text section. */
26606 unwind.saved_seg = now_seg;
26607 unwind.saved_subseg = now_subseg;
26609 start_unwind_section (now_seg, 0);
26611 if (unwind.personality_routine == NULL)
26613 if (unwind.personality_index == -2)
26616 as_bad (_("handlerdata in cantunwind frame"));
26617 return 1; /* EXIDX_CANTUNWIND. */
26620 /* Use a default personality routine if none is specified. */
26621 if (unwind.personality_index == -1)
26623 if (unwind.opcode_count > 3)
26624 unwind.personality_index = 1;
26626 unwind.personality_index = 0;
26629 /* Space for the personality routine entry. */
26630 if (unwind.personality_index == 0)
26632 if (unwind.opcode_count > 3)
26633 as_bad (_("too many unwind opcodes for personality routine 0"));
26637 /* All the data is inline in the index table. */
26640 while (unwind.opcode_count > 0)
26642 unwind.opcode_count--;
26643 data = (data << 8) | unwind.opcodes[unwind.opcode_count];
26647 /* Pad with "finish" opcodes. */
26649 data = (data << 8) | 0xb0;
26656 /* We get two opcodes "free" in the first word. */
26657 size = unwind.opcode_count - 2;
26661 /* PR 16765: Missing or misplaced unwind directives can trigger this. */
26662 if (unwind.personality_index != -1)
26664 as_bad (_("attempt to recreate an unwind entry"));
26668 /* An extra byte is required for the opcode count. */
26669 size = unwind.opcode_count + 1;
26672 size = (size + 3) >> 2;
26674 as_bad (_("too many unwind opcodes"));
26676 frag_align (2, 0, 0);
26677 record_alignment (now_seg, 2);
26678 unwind.table_entry = expr_build_dot ();
26680 /* Allocate the table entry. */
26681 ptr = frag_more ((size << 2) + 4);
26682 /* PR 13449: Zero the table entries in case some of them are not used. */
26683 memset (ptr, 0, (size << 2) + 4);
26684 where = frag_now_fix () - ((size << 2) + 4);
26686 switch (unwind.personality_index)
26689 /* ??? Should this be a PLT generating relocation? */
26690 /* Custom personality routine. */
26691 fix_new (frag_now, where, 4, unwind.personality_routine, 0, 1,
26692 BFD_RELOC_ARM_PREL31);
26697 /* Set the first byte to the number of additional words. */
26698 data = size > 0 ? size - 1 : 0;
26702 /* ABI defined personality routines. */
26704 /* Three opcodes bytes are packed into the first word. */
26711 /* The size and first two opcode bytes go in the first word. */
26712 data = ((0x80 + unwind.personality_index) << 8) | size;
26717 /* Should never happen. */
26721 /* Pack the opcodes into words (MSB first), reversing the list at the same
26723 while (unwind.opcode_count > 0)
26727 md_number_to_chars (ptr, data, 4);
26732 unwind.opcode_count--;
26734 data = (data << 8) | unwind.opcodes[unwind.opcode_count];
26737 /* Finish off the last word. */
26740 /* Pad with "finish" opcodes. */
26742 data = (data << 8) | 0xb0;
26744 md_number_to_chars (ptr, data, 4);
26749 /* Add an empty descriptor if there is no user-specified data. */
26750 ptr = frag_more (4);
26751 md_number_to_chars (ptr, 0, 4);
26758 /* Initialize the DWARF-2 unwind information for this procedure. */
26761 tc_arm_frame_initial_instructions (void)
26763 cfi_add_CFA_def_cfa (REG_SP, 0);
26765 #endif /* OBJ_ELF */
26767 /* Convert REGNAME to a DWARF-2 register number. */
26770 tc_arm_regname_to_dw2regnum (char *regname)
26772 int reg = arm_reg_parse (®name, REG_TYPE_RN);
26776 /* PR 16694: Allow VFP registers as well. */
26777 reg = arm_reg_parse (®name, REG_TYPE_VFS);
26781 reg = arm_reg_parse (®name, REG_TYPE_VFD);
26790 tc_pe_dwarf2_emit_offset (symbolS *symbol, unsigned int size)
26794 exp.X_op = O_secrel;
26795 exp.X_add_symbol = symbol;
26796 exp.X_add_number = 0;
26797 emit_expr (&exp, size);
26801 /* MD interface: Symbol and relocation handling. */
26803 /* Return the address within the segment that a PC-relative fixup is
26804 relative to. For ARM, PC-relative fixups applied to instructions
26805 are generally relative to the location of the fixup plus 8 bytes.
26806 Thumb branches are offset by 4, and Thumb loads relative to PC
26807 require special handling. */
26810 md_pcrel_from_section (fixS * fixP, segT seg)
26812 offsetT base = fixP->fx_where + fixP->fx_frag->fr_address;
26814 /* If this is pc-relative and we are going to emit a relocation
26815 then we just want to put out any pipeline compensation that the linker
26816 will need. Otherwise we want to use the calculated base.
26817 For WinCE we skip the bias for externals as well, since this
26818 is how the MS ARM-CE assembler behaves and we want to be compatible. */
26820 && ((fixP->fx_addsy && S_GET_SEGMENT (fixP->fx_addsy) != seg)
26821 || (arm_force_relocation (fixP)
26823 && !S_IS_EXTERNAL (fixP->fx_addsy)
26829 switch (fixP->fx_r_type)
26831 /* PC relative addressing on the Thumb is slightly odd as the
26832 bottom two bits of the PC are forced to zero for the
26833 calculation. This happens *after* application of the
26834 pipeline offset. However, Thumb adrl already adjusts for
26835 this, so we need not do it again. */
26836 case BFD_RELOC_ARM_THUMB_ADD:
26839 case BFD_RELOC_ARM_THUMB_OFFSET:
26840 case BFD_RELOC_ARM_T32_OFFSET_IMM:
26841 case BFD_RELOC_ARM_T32_ADD_PC12:
26842 case BFD_RELOC_ARM_T32_CP_OFF_IMM:
26843 return (base + 4) & ~3;
26845 /* Thumb branches are simply offset by +4. */
26846 case BFD_RELOC_THUMB_PCREL_BRANCH5:
26847 case BFD_RELOC_THUMB_PCREL_BRANCH7:
26848 case BFD_RELOC_THUMB_PCREL_BRANCH9:
26849 case BFD_RELOC_THUMB_PCREL_BRANCH12:
26850 case BFD_RELOC_THUMB_PCREL_BRANCH20:
26851 case BFD_RELOC_THUMB_PCREL_BRANCH25:
26852 case BFD_RELOC_THUMB_PCREL_BFCSEL:
26853 case BFD_RELOC_ARM_THUMB_BF17:
26854 case BFD_RELOC_ARM_THUMB_BF19:
26855 case BFD_RELOC_ARM_THUMB_BF13:
26856 case BFD_RELOC_ARM_THUMB_LOOP12:
26859 case BFD_RELOC_THUMB_PCREL_BRANCH23:
26861 && (S_GET_SEGMENT (fixP->fx_addsy) == seg)
26862 && !S_FORCE_RELOC (fixP->fx_addsy, TRUE)
26863 && ARM_IS_FUNC (fixP->fx_addsy)
26864 && ARM_CPU_HAS_FEATURE (selected_cpu, arm_ext_v5t))
26865 base = fixP->fx_where + fixP->fx_frag->fr_address;
26868 /* BLX is like branches above, but forces the low two bits of PC to
26870 case BFD_RELOC_THUMB_PCREL_BLX:
26872 && (S_GET_SEGMENT (fixP->fx_addsy) == seg)
26873 && !S_FORCE_RELOC (fixP->fx_addsy, TRUE)
26874 && THUMB_IS_FUNC (fixP->fx_addsy)
26875 && ARM_CPU_HAS_FEATURE (selected_cpu, arm_ext_v5t))
26876 base = fixP->fx_where + fixP->fx_frag->fr_address;
26877 return (base + 4) & ~3;
26879 /* ARM mode branches are offset by +8. However, the Windows CE
26880 loader expects the relocation not to take this into account. */
26881 case BFD_RELOC_ARM_PCREL_BLX:
26883 && (S_GET_SEGMENT (fixP->fx_addsy) == seg)
26884 && !S_FORCE_RELOC (fixP->fx_addsy, TRUE)
26885 && ARM_IS_FUNC (fixP->fx_addsy)
26886 && ARM_CPU_HAS_FEATURE (selected_cpu, arm_ext_v5t))
26887 base = fixP->fx_where + fixP->fx_frag->fr_address;
26890 case BFD_RELOC_ARM_PCREL_CALL:
26892 && (S_GET_SEGMENT (fixP->fx_addsy) == seg)
26893 && !S_FORCE_RELOC (fixP->fx_addsy, TRUE)
26894 && THUMB_IS_FUNC (fixP->fx_addsy)
26895 && ARM_CPU_HAS_FEATURE (selected_cpu, arm_ext_v5t))
26896 base = fixP->fx_where + fixP->fx_frag->fr_address;
26899 case BFD_RELOC_ARM_PCREL_BRANCH:
26900 case BFD_RELOC_ARM_PCREL_JUMP:
26901 case BFD_RELOC_ARM_PLT32:
26903 /* When handling fixups immediately, because we have already
26904 discovered the value of a symbol, or the address of the frag involved
26905 we must account for the offset by +8, as the OS loader will never see the reloc.
26906 see fixup_segment() in write.c
26907 The S_IS_EXTERNAL test handles the case of global symbols.
26908 Those need the calculated base, not just the pipe compensation the linker will need. */
26910 && fixP->fx_addsy != NULL
26911 && (S_GET_SEGMENT (fixP->fx_addsy) == seg)
26912 && (S_IS_EXTERNAL (fixP->fx_addsy) || !arm_force_relocation (fixP)))
26920 /* ARM mode loads relative to PC are also offset by +8. Unlike
26921 branches, the Windows CE loader *does* expect the relocation
26922 to take this into account. */
26923 case BFD_RELOC_ARM_OFFSET_IMM:
26924 case BFD_RELOC_ARM_OFFSET_IMM8:
26925 case BFD_RELOC_ARM_HWLITERAL:
26926 case BFD_RELOC_ARM_LITERAL:
26927 case BFD_RELOC_ARM_CP_OFF_IMM:
26931 /* Other PC-relative relocations are un-offset. */
26937 static bfd_boolean flag_warn_syms = TRUE;
26940 arm_tc_equal_in_insn (int c ATTRIBUTE_UNUSED, char * name)
26942 /* PR 18347 - Warn if the user attempts to create a symbol with the same
26943 name as an ARM instruction. Whilst strictly speaking it is allowed, it
26944 does mean that the resulting code might be very confusing to the reader.
26945 Also this warning can be triggered if the user omits an operand before
26946 an immediate address, eg:
26950 GAS treats this as an assignment of the value of the symbol foo to a
26951 symbol LDR, and so (without this code) it will not issue any kind of
26952 warning or error message.
26954 Note - ARM instructions are case-insensitive but the strings in the hash
26955 table are all stored in lower case, so we must first ensure that name is
26957 if (flag_warn_syms && arm_ops_hsh)
26959 char * nbuf = strdup (name);
26962 for (p = nbuf; *p; p++)
26964 if (hash_find (arm_ops_hsh, nbuf) != NULL)
26966 static struct hash_control * already_warned = NULL;
26968 if (already_warned == NULL)
26969 already_warned = hash_new ();
26970 /* Only warn about the symbol once. To keep the code
26971 simple we let hash_insert do the lookup for us. */
26972 if (hash_insert (already_warned, nbuf, NULL) == NULL)
26973 as_warn (_("[-mwarn-syms]: Assignment makes a symbol match an ARM instruction: %s"), name);
26982 /* Under ELF we need to default _GLOBAL_OFFSET_TABLE.
26983 Otherwise we have no need to default values of symbols. */
26986 md_undefined_symbol (char * name ATTRIBUTE_UNUSED)
26989 if (name[0] == '_' && name[1] == 'G'
26990 && streq (name, GLOBAL_OFFSET_TABLE_NAME))
26994 if (symbol_find (name))
26995 as_bad (_("GOT already in the symbol table"));
26997 GOT_symbol = symbol_new (name, undefined_section,
26998 (valueT) 0, & zero_address_frag);
27008 /* Subroutine of md_apply_fix. Check to see if an immediate can be
27009 computed as two separate immediate values, added together. We
27010 already know that this value cannot be computed by just one ARM
27013 static unsigned int
27014 validate_immediate_twopart (unsigned int val,
27015 unsigned int * highpart)
27020 for (i = 0; i < 32; i += 2)
27021 if (((a = rotate_left (val, i)) & 0xff) != 0)
27027 * highpart = (a >> 8) | ((i + 24) << 7);
27029 else if (a & 0xff0000)
27031 if (a & 0xff000000)
27033 * highpart = (a >> 16) | ((i + 16) << 7);
27037 gas_assert (a & 0xff000000);
27038 * highpart = (a >> 24) | ((i + 8) << 7);
27041 return (a & 0xff) | (i << 7);
27048 validate_offset_imm (unsigned int val, int hwse)
27050 if ((hwse && val > 255) || val > 4095)
27055 /* Subroutine of md_apply_fix. Do those data_ops which can take a
27056 negative immediate constant by altering the instruction. A bit of
27061 by inverting the second operand, and
27064 by negating the second operand. */
27067 negate_data_op (unsigned long * instruction,
27068 unsigned long value)
27071 unsigned long negated, inverted;
27073 negated = encode_arm_immediate (-value);
27074 inverted = encode_arm_immediate (~value);
27076 op = (*instruction >> DATA_OP_SHIFT) & 0xf;
27079 /* First negates. */
27080 case OPCODE_SUB: /* ADD <-> SUB */
27081 new_inst = OPCODE_ADD;
27086 new_inst = OPCODE_SUB;
27090 case OPCODE_CMP: /* CMP <-> CMN */
27091 new_inst = OPCODE_CMN;
27096 new_inst = OPCODE_CMP;
27100 /* Now Inverted ops. */
27101 case OPCODE_MOV: /* MOV <-> MVN */
27102 new_inst = OPCODE_MVN;
27107 new_inst = OPCODE_MOV;
27111 case OPCODE_AND: /* AND <-> BIC */
27112 new_inst = OPCODE_BIC;
27117 new_inst = OPCODE_AND;
27121 case OPCODE_ADC: /* ADC <-> SBC */
27122 new_inst = OPCODE_SBC;
27127 new_inst = OPCODE_ADC;
27131 /* We cannot do anything. */
27136 if (value == (unsigned) FAIL)
27139 *instruction &= OPCODE_MASK;
27140 *instruction |= new_inst << DATA_OP_SHIFT;
27144 /* Like negate_data_op, but for Thumb-2. */
27146 static unsigned int
27147 thumb32_negate_data_op (offsetT *instruction, unsigned int value)
27151 unsigned int negated, inverted;
27153 negated = encode_thumb32_immediate (-value);
27154 inverted = encode_thumb32_immediate (~value);
27156 rd = (*instruction >> 8) & 0xf;
27157 op = (*instruction >> T2_DATA_OP_SHIFT) & 0xf;
27160 /* ADD <-> SUB. Includes CMP <-> CMN. */
27161 case T2_OPCODE_SUB:
27162 new_inst = T2_OPCODE_ADD;
27166 case T2_OPCODE_ADD:
27167 new_inst = T2_OPCODE_SUB;
27171 /* ORR <-> ORN. Includes MOV <-> MVN. */
27172 case T2_OPCODE_ORR:
27173 new_inst = T2_OPCODE_ORN;
27177 case T2_OPCODE_ORN:
27178 new_inst = T2_OPCODE_ORR;
27182 /* AND <-> BIC. TST has no inverted equivalent. */
27183 case T2_OPCODE_AND:
27184 new_inst = T2_OPCODE_BIC;
27191 case T2_OPCODE_BIC:
27192 new_inst = T2_OPCODE_AND;
27197 case T2_OPCODE_ADC:
27198 new_inst = T2_OPCODE_SBC;
27202 case T2_OPCODE_SBC:
27203 new_inst = T2_OPCODE_ADC;
27207 /* We cannot do anything. */
27212 if (value == (unsigned int)FAIL)
27215 *instruction &= T2_OPCODE_MASK;
27216 *instruction |= new_inst << T2_DATA_OP_SHIFT;
27220 /* Read a 32-bit thumb instruction from buf. */
27222 static unsigned long
27223 get_thumb32_insn (char * buf)
27225 unsigned long insn;
27226 insn = md_chars_to_number (buf, THUMB_SIZE) << 16;
27227 insn |= md_chars_to_number (buf + THUMB_SIZE, THUMB_SIZE);
27232 /* We usually want to set the low bit on the address of thumb function
27233 symbols. In particular .word foo - . should have the low bit set.
27234 Generic code tries to fold the difference of two symbols to
27235 a constant. Prevent this and force a relocation when the first symbols
27236 is a thumb function. */
27239 arm_optimize_expr (expressionS *l, operatorT op, expressionS *r)
27241 if (op == O_subtract
27242 && l->X_op == O_symbol
27243 && r->X_op == O_symbol
27244 && THUMB_IS_FUNC (l->X_add_symbol))
27246 l->X_op = O_subtract;
27247 l->X_op_symbol = r->X_add_symbol;
27248 l->X_add_number -= r->X_add_number;
27252 /* Process as normal. */
27256 /* Encode Thumb2 unconditional branches and calls. The encoding
27257 for the 2 are identical for the immediate values. */
27260 encode_thumb2_b_bl_offset (char * buf, offsetT value)
27262 #define T2I1I2MASK ((1 << 13) | (1 << 11))
27265 addressT S, I1, I2, lo, hi;
27267 S = (value >> 24) & 0x01;
27268 I1 = (value >> 23) & 0x01;
27269 I2 = (value >> 22) & 0x01;
27270 hi = (value >> 12) & 0x3ff;
27271 lo = (value >> 1) & 0x7ff;
27272 newval = md_chars_to_number (buf, THUMB_SIZE);
27273 newval2 = md_chars_to_number (buf + THUMB_SIZE, THUMB_SIZE);
27274 newval |= (S << 10) | hi;
27275 newval2 &= ~T2I1I2MASK;
27276 newval2 |= (((I1 ^ S) << 13) | ((I2 ^ S) << 11) | lo) ^ T2I1I2MASK;
27277 md_number_to_chars (buf, newval, THUMB_SIZE);
27278 md_number_to_chars (buf + THUMB_SIZE, newval2, THUMB_SIZE);
27282 md_apply_fix (fixS * fixP,
27286 offsetT value = * valP;
27288 unsigned int newimm;
27289 unsigned long temp;
27291 char * buf = fixP->fx_where + fixP->fx_frag->fr_literal;
27293 gas_assert (fixP->fx_r_type <= BFD_RELOC_UNUSED);
27295 /* Note whether this will delete the relocation. */
27297 if (fixP->fx_addsy == 0 && !fixP->fx_pcrel)
27300 /* On a 64-bit host, silently truncate 'value' to 32 bits for
27301 consistency with the behaviour on 32-bit hosts. Remember value
27303 value &= 0xffffffff;
27304 value ^= 0x80000000;
27305 value -= 0x80000000;
27308 fixP->fx_addnumber = value;
27310 /* Same treatment for fixP->fx_offset. */
27311 fixP->fx_offset &= 0xffffffff;
27312 fixP->fx_offset ^= 0x80000000;
27313 fixP->fx_offset -= 0x80000000;
27315 switch (fixP->fx_r_type)
27317 case BFD_RELOC_NONE:
27318 /* This will need to go in the object file. */
27322 case BFD_RELOC_ARM_IMMEDIATE:
27323 /* We claim that this fixup has been processed here,
27324 even if in fact we generate an error because we do
27325 not have a reloc for it, so tc_gen_reloc will reject it. */
27328 if (fixP->fx_addsy)
27330 const char *msg = 0;
27332 if (! S_IS_DEFINED (fixP->fx_addsy))
27333 msg = _("undefined symbol %s used as an immediate value");
27334 else if (S_GET_SEGMENT (fixP->fx_addsy) != seg)
27335 msg = _("symbol %s is in a different section");
27336 else if (S_IS_WEAK (fixP->fx_addsy))
27337 msg = _("symbol %s is weak and may be overridden later");
27341 as_bad_where (fixP->fx_file, fixP->fx_line,
27342 msg, S_GET_NAME (fixP->fx_addsy));
27347 temp = md_chars_to_number (buf, INSN_SIZE);
27349 /* If the offset is negative, we should use encoding A2 for ADR. */
27350 if ((temp & 0xfff0000) == 0x28f0000 && value < 0)
27351 newimm = negate_data_op (&temp, value);
27354 newimm = encode_arm_immediate (value);
27356 /* If the instruction will fail, see if we can fix things up by
27357 changing the opcode. */
27358 if (newimm == (unsigned int) FAIL)
27359 newimm = negate_data_op (&temp, value);
27360 /* MOV accepts both ARM modified immediate (A1 encoding) and
27361 UINT16 (A2 encoding) when possible, MOVW only accepts UINT16.
27362 When disassembling, MOV is preferred when there is no encoding
27364 if (newimm == (unsigned int) FAIL
27365 && ((temp >> DATA_OP_SHIFT) & 0xf) == OPCODE_MOV
27366 && ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v6t2)
27367 && !((temp >> SBIT_SHIFT) & 0x1)
27368 && value >= 0 && value <= 0xffff)
27370 /* Clear bits[23:20] to change encoding from A1 to A2. */
27371 temp &= 0xff0fffff;
27372 /* Encoding high 4bits imm. Code below will encode the remaining
27374 temp |= (value & 0x0000f000) << 4;
27375 newimm = value & 0x00000fff;
27379 if (newimm == (unsigned int) FAIL)
27381 as_bad_where (fixP->fx_file, fixP->fx_line,
27382 _("invalid constant (%lx) after fixup"),
27383 (unsigned long) value);
27387 newimm |= (temp & 0xfffff000);
27388 md_number_to_chars (buf, (valueT) newimm, INSN_SIZE);
27391 case BFD_RELOC_ARM_ADRL_IMMEDIATE:
27393 unsigned int highpart = 0;
27394 unsigned int newinsn = 0xe1a00000; /* nop. */
27396 if (fixP->fx_addsy)
27398 const char *msg = 0;
27400 if (! S_IS_DEFINED (fixP->fx_addsy))
27401 msg = _("undefined symbol %s used as an immediate value");
27402 else if (S_GET_SEGMENT (fixP->fx_addsy) != seg)
27403 msg = _("symbol %s is in a different section");
27404 else if (S_IS_WEAK (fixP->fx_addsy))
27405 msg = _("symbol %s is weak and may be overridden later");
27409 as_bad_where (fixP->fx_file, fixP->fx_line,
27410 msg, S_GET_NAME (fixP->fx_addsy));
27415 newimm = encode_arm_immediate (value);
27416 temp = md_chars_to_number (buf, INSN_SIZE);
27418 /* If the instruction will fail, see if we can fix things up by
27419 changing the opcode. */
27420 if (newimm == (unsigned int) FAIL
27421 && (newimm = negate_data_op (& temp, value)) == (unsigned int) FAIL)
27423 /* No ? OK - try using two ADD instructions to generate
27425 newimm = validate_immediate_twopart (value, & highpart);
27427 /* Yes - then make sure that the second instruction is
27429 if (newimm != (unsigned int) FAIL)
27431 /* Still No ? Try using a negated value. */
27432 else if ((newimm = validate_immediate_twopart (- value, & highpart)) != (unsigned int) FAIL)
27433 temp = newinsn = (temp & OPCODE_MASK) | OPCODE_SUB << DATA_OP_SHIFT;
27434 /* Otherwise - give up. */
27437 as_bad_where (fixP->fx_file, fixP->fx_line,
27438 _("unable to compute ADRL instructions for PC offset of 0x%lx"),
27443 /* Replace the first operand in the 2nd instruction (which
27444 is the PC) with the destination register. We have
27445 already added in the PC in the first instruction and we
27446 do not want to do it again. */
27447 newinsn &= ~ 0xf0000;
27448 newinsn |= ((newinsn & 0x0f000) << 4);
27451 newimm |= (temp & 0xfffff000);
27452 md_number_to_chars (buf, (valueT) newimm, INSN_SIZE);
27454 highpart |= (newinsn & 0xfffff000);
27455 md_number_to_chars (buf + INSN_SIZE, (valueT) highpart, INSN_SIZE);
27459 case BFD_RELOC_ARM_OFFSET_IMM:
27460 if (!fixP->fx_done && seg->use_rela_p)
27462 /* Fall through. */
27464 case BFD_RELOC_ARM_LITERAL:
27470 if (validate_offset_imm (value, 0) == FAIL)
27472 if (fixP->fx_r_type == BFD_RELOC_ARM_LITERAL)
27473 as_bad_where (fixP->fx_file, fixP->fx_line,
27474 _("invalid literal constant: pool needs to be closer"));
27476 as_bad_where (fixP->fx_file, fixP->fx_line,
27477 _("bad immediate value for offset (%ld)"),
27482 newval = md_chars_to_number (buf, INSN_SIZE);
27484 newval &= 0xfffff000;
27487 newval &= 0xff7ff000;
27488 newval |= value | (sign ? INDEX_UP : 0);
27490 md_number_to_chars (buf, newval, INSN_SIZE);
27493 case BFD_RELOC_ARM_OFFSET_IMM8:
27494 case BFD_RELOC_ARM_HWLITERAL:
27500 if (validate_offset_imm (value, 1) == FAIL)
27502 if (fixP->fx_r_type == BFD_RELOC_ARM_HWLITERAL)
27503 as_bad_where (fixP->fx_file, fixP->fx_line,
27504 _("invalid literal constant: pool needs to be closer"));
27506 as_bad_where (fixP->fx_file, fixP->fx_line,
27507 _("bad immediate value for 8-bit offset (%ld)"),
27512 newval = md_chars_to_number (buf, INSN_SIZE);
27514 newval &= 0xfffff0f0;
27517 newval &= 0xff7ff0f0;
27518 newval |= ((value >> 4) << 8) | (value & 0xf) | (sign ? INDEX_UP : 0);
27520 md_number_to_chars (buf, newval, INSN_SIZE);
27523 case BFD_RELOC_ARM_T32_OFFSET_U8:
27524 if (value < 0 || value > 1020 || value % 4 != 0)
27525 as_bad_where (fixP->fx_file, fixP->fx_line,
27526 _("bad immediate value for offset (%ld)"), (long) value);
27529 newval = md_chars_to_number (buf+2, THUMB_SIZE);
27531 md_number_to_chars (buf+2, newval, THUMB_SIZE);
27534 case BFD_RELOC_ARM_T32_OFFSET_IMM:
27535 /* This is a complicated relocation used for all varieties of Thumb32
27536 load/store instruction with immediate offset:
27538 1110 100P u1WL NNNN XXXX YYYY iiii iiii - +/-(U) pre/post(P) 8-bit,
27539 *4, optional writeback(W)
27540 (doubleword load/store)
27542 1111 100S uTTL 1111 XXXX iiii iiii iiii - +/-(U) 12-bit PC-rel
27543 1111 100S 0TTL NNNN XXXX 1Pu1 iiii iiii - +/-(U) pre/post(P) 8-bit
27544 1111 100S 0TTL NNNN XXXX 1110 iiii iiii - positive 8-bit (T instruction)
27545 1111 100S 1TTL NNNN XXXX iiii iiii iiii - positive 12-bit
27546 1111 100S 0TTL NNNN XXXX 1100 iiii iiii - negative 8-bit
27548 Uppercase letters indicate bits that are already encoded at
27549 this point. Lowercase letters are our problem. For the
27550 second block of instructions, the secondary opcode nybble
27551 (bits 8..11) is present, and bit 23 is zero, even if this is
27552 a PC-relative operation. */
27553 newval = md_chars_to_number (buf, THUMB_SIZE);
27555 newval |= md_chars_to_number (buf+THUMB_SIZE, THUMB_SIZE);
27557 if ((newval & 0xf0000000) == 0xe0000000)
27559 /* Doubleword load/store: 8-bit offset, scaled by 4. */
27561 newval |= (1 << 23);
27564 if (value % 4 != 0)
27566 as_bad_where (fixP->fx_file, fixP->fx_line,
27567 _("offset not a multiple of 4"));
27573 as_bad_where (fixP->fx_file, fixP->fx_line,
27574 _("offset out of range"));
27579 else if ((newval & 0x000f0000) == 0x000f0000)
27581 /* PC-relative, 12-bit offset. */
27583 newval |= (1 << 23);
27588 as_bad_where (fixP->fx_file, fixP->fx_line,
27589 _("offset out of range"));
27594 else if ((newval & 0x00000100) == 0x00000100)
27596 /* Writeback: 8-bit, +/- offset. */
27598 newval |= (1 << 9);
27603 as_bad_where (fixP->fx_file, fixP->fx_line,
27604 _("offset out of range"));
27609 else if ((newval & 0x00000f00) == 0x00000e00)
27611 /* T-instruction: positive 8-bit offset. */
27612 if (value < 0 || value > 0xff)
27614 as_bad_where (fixP->fx_file, fixP->fx_line,
27615 _("offset out of range"));
27623 /* Positive 12-bit or negative 8-bit offset. */
27627 newval |= (1 << 23);
27637 as_bad_where (fixP->fx_file, fixP->fx_line,
27638 _("offset out of range"));
27645 md_number_to_chars (buf, (newval >> 16) & 0xffff, THUMB_SIZE);
27646 md_number_to_chars (buf + THUMB_SIZE, newval & 0xffff, THUMB_SIZE);
27649 case BFD_RELOC_ARM_SHIFT_IMM:
27650 newval = md_chars_to_number (buf, INSN_SIZE);
27651 if (((unsigned long) value) > 32
27653 && (((newval & 0x60) == 0) || (newval & 0x60) == 0x60)))
27655 as_bad_where (fixP->fx_file, fixP->fx_line,
27656 _("shift expression is too large"));
27661 /* Shifts of zero must be done as lsl. */
27663 else if (value == 32)
27665 newval &= 0xfffff07f;
27666 newval |= (value & 0x1f) << 7;
27667 md_number_to_chars (buf, newval, INSN_SIZE);
27670 case BFD_RELOC_ARM_T32_IMMEDIATE:
27671 case BFD_RELOC_ARM_T32_ADD_IMM:
27672 case BFD_RELOC_ARM_T32_IMM12:
27673 case BFD_RELOC_ARM_T32_ADD_PC12:
27674 /* We claim that this fixup has been processed here,
27675 even if in fact we generate an error because we do
27676 not have a reloc for it, so tc_gen_reloc will reject it. */
27680 && ! S_IS_DEFINED (fixP->fx_addsy))
27682 as_bad_where (fixP->fx_file, fixP->fx_line,
27683 _("undefined symbol %s used as an immediate value"),
27684 S_GET_NAME (fixP->fx_addsy));
27688 newval = md_chars_to_number (buf, THUMB_SIZE);
27690 newval |= md_chars_to_number (buf+2, THUMB_SIZE);
27693 if ((fixP->fx_r_type == BFD_RELOC_ARM_T32_IMMEDIATE
27694 /* ARMv8-M Baseline MOV will reach here, but it doesn't support
27695 Thumb2 modified immediate encoding (T2). */
27696 && ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v6t2))
27697 || fixP->fx_r_type == BFD_RELOC_ARM_T32_ADD_IMM)
27699 newimm = encode_thumb32_immediate (value);
27700 if (newimm == (unsigned int) FAIL)
27701 newimm = thumb32_negate_data_op (&newval, value);
27703 if (newimm == (unsigned int) FAIL)
27705 if (fixP->fx_r_type != BFD_RELOC_ARM_T32_IMMEDIATE)
27707 /* Turn add/sum into addw/subw. */
27708 if (fixP->fx_r_type == BFD_RELOC_ARM_T32_ADD_IMM)
27709 newval = (newval & 0xfeffffff) | 0x02000000;
27710 /* No flat 12-bit imm encoding for addsw/subsw. */
27711 if ((newval & 0x00100000) == 0)
27713 /* 12 bit immediate for addw/subw. */
27717 newval ^= 0x00a00000;
27720 newimm = (unsigned int) FAIL;
27727 /* MOV accepts both Thumb2 modified immediate (T2 encoding) and
27728 UINT16 (T3 encoding), MOVW only accepts UINT16. When
27729 disassembling, MOV is preferred when there is no encoding
27731 if (((newval >> T2_DATA_OP_SHIFT) & 0xf) == T2_OPCODE_ORR
27732 /* NOTE: MOV uses the ORR opcode in Thumb 2 mode
27733 but with the Rn field [19:16] set to 1111. */
27734 && (((newval >> 16) & 0xf) == 0xf)
27735 && ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v6t2_v8m)
27736 && !((newval >> T2_SBIT_SHIFT) & 0x1)
27737 && value >= 0 && value <= 0xffff)
27739 /* Toggle bit[25] to change encoding from T2 to T3. */
27741 /* Clear bits[19:16]. */
27742 newval &= 0xfff0ffff;
27743 /* Encoding high 4bits imm. Code below will encode the
27744 remaining low 12bits. */
27745 newval |= (value & 0x0000f000) << 4;
27746 newimm = value & 0x00000fff;
27751 if (newimm == (unsigned int)FAIL)
27753 as_bad_where (fixP->fx_file, fixP->fx_line,
27754 _("invalid constant (%lx) after fixup"),
27755 (unsigned long) value);
27759 newval |= (newimm & 0x800) << 15;
27760 newval |= (newimm & 0x700) << 4;
27761 newval |= (newimm & 0x0ff);
27763 md_number_to_chars (buf, (valueT) ((newval >> 16) & 0xffff), THUMB_SIZE);
27764 md_number_to_chars (buf+2, (valueT) (newval & 0xffff), THUMB_SIZE);
27767 case BFD_RELOC_ARM_SMC:
27768 if (((unsigned long) value) > 0xffff)
27769 as_bad_where (fixP->fx_file, fixP->fx_line,
27770 _("invalid smc expression"));
27771 newval = md_chars_to_number (buf, INSN_SIZE);
27772 newval |= (value & 0xf) | ((value & 0xfff0) << 4);
27773 md_number_to_chars (buf, newval, INSN_SIZE);
27776 case BFD_RELOC_ARM_HVC:
27777 if (((unsigned long) value) > 0xffff)
27778 as_bad_where (fixP->fx_file, fixP->fx_line,
27779 _("invalid hvc expression"));
27780 newval = md_chars_to_number (buf, INSN_SIZE);
27781 newval |= (value & 0xf) | ((value & 0xfff0) << 4);
27782 md_number_to_chars (buf, newval, INSN_SIZE);
27785 case BFD_RELOC_ARM_SWI:
27786 if (fixP->tc_fix_data != 0)
27788 if (((unsigned long) value) > 0xff)
27789 as_bad_where (fixP->fx_file, fixP->fx_line,
27790 _("invalid swi expression"));
27791 newval = md_chars_to_number (buf, THUMB_SIZE);
27793 md_number_to_chars (buf, newval, THUMB_SIZE);
27797 if (((unsigned long) value) > 0x00ffffff)
27798 as_bad_where (fixP->fx_file, fixP->fx_line,
27799 _("invalid swi expression"));
27800 newval = md_chars_to_number (buf, INSN_SIZE);
27802 md_number_to_chars (buf, newval, INSN_SIZE);
27806 case BFD_RELOC_ARM_MULTI:
27807 if (((unsigned long) value) > 0xffff)
27808 as_bad_where (fixP->fx_file, fixP->fx_line,
27809 _("invalid expression in load/store multiple"));
27810 newval = value | md_chars_to_number (buf, INSN_SIZE);
27811 md_number_to_chars (buf, newval, INSN_SIZE);
27815 case BFD_RELOC_ARM_PCREL_CALL:
27817 if (ARM_CPU_HAS_FEATURE (selected_cpu, arm_ext_v5t)
27819 && !S_FORCE_RELOC (fixP->fx_addsy, TRUE)
27820 && (S_GET_SEGMENT (fixP->fx_addsy) == seg)
27821 && THUMB_IS_FUNC (fixP->fx_addsy))
27822 /* Flip the bl to blx. This is a simple flip
27823 bit here because we generate PCREL_CALL for
27824 unconditional bls. */
27826 newval = md_chars_to_number (buf, INSN_SIZE);
27827 newval = newval | 0x10000000;
27828 md_number_to_chars (buf, newval, INSN_SIZE);
27834 goto arm_branch_common;
27836 case BFD_RELOC_ARM_PCREL_JUMP:
27837 if (ARM_CPU_HAS_FEATURE (selected_cpu, arm_ext_v5t)
27839 && !S_FORCE_RELOC (fixP->fx_addsy, TRUE)
27840 && (S_GET_SEGMENT (fixP->fx_addsy) == seg)
27841 && THUMB_IS_FUNC (fixP->fx_addsy))
27843 /* This would map to a bl<cond>, b<cond>,
27844 b<always> to a Thumb function. We
27845 need to force a relocation for this particular
27847 newval = md_chars_to_number (buf, INSN_SIZE);
27850 /* Fall through. */
27852 case BFD_RELOC_ARM_PLT32:
27854 case BFD_RELOC_ARM_PCREL_BRANCH:
27856 goto arm_branch_common;
27858 case BFD_RELOC_ARM_PCREL_BLX:
27861 if (ARM_CPU_HAS_FEATURE (selected_cpu, arm_ext_v5t)
27863 && !S_FORCE_RELOC (fixP->fx_addsy, TRUE)
27864 && (S_GET_SEGMENT (fixP->fx_addsy) == seg)
27865 && ARM_IS_FUNC (fixP->fx_addsy))
27867 /* Flip the blx to a bl and warn. */
27868 const char *name = S_GET_NAME (fixP->fx_addsy);
27869 newval = 0xeb000000;
27870 as_warn_where (fixP->fx_file, fixP->fx_line,
27871 _("blx to '%s' an ARM ISA state function changed to bl"),
27873 md_number_to_chars (buf, newval, INSN_SIZE);
27879 if (EF_ARM_EABI_VERSION (meabi_flags) >= EF_ARM_EABI_VER4)
27880 fixP->fx_r_type = BFD_RELOC_ARM_PCREL_CALL;
27884 /* We are going to store value (shifted right by two) in the
27885 instruction, in a 24 bit, signed field. Bits 26 through 32 either
27886 all clear or all set and bit 0 must be clear. For B/BL bit 1 must
27889 as_bad_where (fixP->fx_file, fixP->fx_line,
27890 _("misaligned branch destination"));
27891 if ((value & (offsetT)0xfe000000) != (offsetT)0
27892 && (value & (offsetT)0xfe000000) != (offsetT)0xfe000000)
27893 as_bad_where (fixP->fx_file, fixP->fx_line, BAD_RANGE);
27895 if (fixP->fx_done || !seg->use_rela_p)
27897 newval = md_chars_to_number (buf, INSN_SIZE);
27898 newval |= (value >> 2) & 0x00ffffff;
27899 /* Set the H bit on BLX instructions. */
27903 newval |= 0x01000000;
27905 newval &= ~0x01000000;
27907 md_number_to_chars (buf, newval, INSN_SIZE);
27911 case BFD_RELOC_THUMB_PCREL_BRANCH7: /* CBZ */
27912 /* CBZ can only branch forward. */
27914 /* Attempts to use CBZ to branch to the next instruction
27915 (which, strictly speaking, are prohibited) will be turned into
27918 FIXME: It may be better to remove the instruction completely and
27919 perform relaxation. */
27922 newval = md_chars_to_number (buf, THUMB_SIZE);
27923 newval = 0xbf00; /* NOP encoding T1 */
27924 md_number_to_chars (buf, newval, THUMB_SIZE);
27929 as_bad_where (fixP->fx_file, fixP->fx_line, BAD_RANGE);
27931 if (fixP->fx_done || !seg->use_rela_p)
27933 newval = md_chars_to_number (buf, THUMB_SIZE);
27934 newval |= ((value & 0x3e) << 2) | ((value & 0x40) << 3);
27935 md_number_to_chars (buf, newval, THUMB_SIZE);
27940 case BFD_RELOC_THUMB_PCREL_BRANCH9: /* Conditional branch. */
27941 if ((value & ~0xff) && ((value & ~0xff) != ~0xff))
27942 as_bad_where (fixP->fx_file, fixP->fx_line, BAD_RANGE);
27944 if (fixP->fx_done || !seg->use_rela_p)
27946 newval = md_chars_to_number (buf, THUMB_SIZE);
27947 newval |= (value & 0x1ff) >> 1;
27948 md_number_to_chars (buf, newval, THUMB_SIZE);
27952 case BFD_RELOC_THUMB_PCREL_BRANCH12: /* Unconditional branch. */
27953 if ((value & ~0x7ff) && ((value & ~0x7ff) != ~0x7ff))
27954 as_bad_where (fixP->fx_file, fixP->fx_line, BAD_RANGE);
27956 if (fixP->fx_done || !seg->use_rela_p)
27958 newval = md_chars_to_number (buf, THUMB_SIZE);
27959 newval |= (value & 0xfff) >> 1;
27960 md_number_to_chars (buf, newval, THUMB_SIZE);
27964 case BFD_RELOC_THUMB_PCREL_BRANCH20:
27966 && (S_GET_SEGMENT (fixP->fx_addsy) == seg)
27967 && !S_FORCE_RELOC (fixP->fx_addsy, TRUE)
27968 && ARM_IS_FUNC (fixP->fx_addsy)
27969 && ARM_CPU_HAS_FEATURE (selected_cpu, arm_ext_v5t))
27971 /* Force a relocation for a branch 20 bits wide. */
27974 if ((value & ~0x1fffff) && ((value & ~0x0fffff) != ~0x0fffff))
27975 as_bad_where (fixP->fx_file, fixP->fx_line,
27976 _("conditional branch out of range"));
27978 if (fixP->fx_done || !seg->use_rela_p)
27981 addressT S, J1, J2, lo, hi;
27983 S = (value & 0x00100000) >> 20;
27984 J2 = (value & 0x00080000) >> 19;
27985 J1 = (value & 0x00040000) >> 18;
27986 hi = (value & 0x0003f000) >> 12;
27987 lo = (value & 0x00000ffe) >> 1;
27989 newval = md_chars_to_number (buf, THUMB_SIZE);
27990 newval2 = md_chars_to_number (buf + THUMB_SIZE, THUMB_SIZE);
27991 newval |= (S << 10) | hi;
27992 newval2 |= (J1 << 13) | (J2 << 11) | lo;
27993 md_number_to_chars (buf, newval, THUMB_SIZE);
27994 md_number_to_chars (buf + THUMB_SIZE, newval2, THUMB_SIZE);
27998 case BFD_RELOC_THUMB_PCREL_BLX:
27999 /* If there is a blx from a thumb state function to
28000 another thumb function flip this to a bl and warn
28004 && !S_FORCE_RELOC (fixP->fx_addsy, TRUE)
28005 && (S_GET_SEGMENT (fixP->fx_addsy) == seg)
28006 && THUMB_IS_FUNC (fixP->fx_addsy))
28008 const char *name = S_GET_NAME (fixP->fx_addsy);
28009 as_warn_where (fixP->fx_file, fixP->fx_line,
28010 _("blx to Thumb func '%s' from Thumb ISA state changed to bl"),
28012 newval = md_chars_to_number (buf + THUMB_SIZE, THUMB_SIZE);
28013 newval = newval | 0x1000;
28014 md_number_to_chars (buf+THUMB_SIZE, newval, THUMB_SIZE);
28015 fixP->fx_r_type = BFD_RELOC_THUMB_PCREL_BRANCH23;
28020 goto thumb_bl_common;
28022 case BFD_RELOC_THUMB_PCREL_BRANCH23:
28023 /* A bl from Thumb state ISA to an internal ARM state function
28024 is converted to a blx. */
28026 && (S_GET_SEGMENT (fixP->fx_addsy) == seg)
28027 && !S_FORCE_RELOC (fixP->fx_addsy, TRUE)
28028 && ARM_IS_FUNC (fixP->fx_addsy)
28029 && ARM_CPU_HAS_FEATURE (selected_cpu, arm_ext_v5t))
28031 newval = md_chars_to_number (buf + THUMB_SIZE, THUMB_SIZE);
28032 newval = newval & ~0x1000;
28033 md_number_to_chars (buf+THUMB_SIZE, newval, THUMB_SIZE);
28034 fixP->fx_r_type = BFD_RELOC_THUMB_PCREL_BLX;
28040 if (fixP->fx_r_type == BFD_RELOC_THUMB_PCREL_BLX)
28041 /* For a BLX instruction, make sure that the relocation is rounded up
28042 to a word boundary. This follows the semantics of the instruction
28043 which specifies that bit 1 of the target address will come from bit
28044 1 of the base address. */
28045 value = (value + 3) & ~ 3;
28048 if (EF_ARM_EABI_VERSION (meabi_flags) >= EF_ARM_EABI_VER4
28049 && fixP->fx_r_type == BFD_RELOC_THUMB_PCREL_BLX)
28050 fixP->fx_r_type = BFD_RELOC_THUMB_PCREL_BRANCH23;
28053 if ((value & ~0x3fffff) && ((value & ~0x3fffff) != ~0x3fffff))
28055 if (!(ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v6t2)))
28056 as_bad_where (fixP->fx_file, fixP->fx_line, BAD_RANGE);
28057 else if ((value & ~0x1ffffff)
28058 && ((value & ~0x1ffffff) != ~0x1ffffff))
28059 as_bad_where (fixP->fx_file, fixP->fx_line,
28060 _("Thumb2 branch out of range"));
28063 if (fixP->fx_done || !seg->use_rela_p)
28064 encode_thumb2_b_bl_offset (buf, value);
28068 case BFD_RELOC_THUMB_PCREL_BRANCH25:
28069 if ((value & ~0x0ffffff) && ((value & ~0x0ffffff) != ~0x0ffffff))
28070 as_bad_where (fixP->fx_file, fixP->fx_line, BAD_RANGE);
28072 if (fixP->fx_done || !seg->use_rela_p)
28073 encode_thumb2_b_bl_offset (buf, value);
28078 if (fixP->fx_done || !seg->use_rela_p)
28083 if (fixP->fx_done || !seg->use_rela_p)
28084 md_number_to_chars (buf, value, 2);
28088 case BFD_RELOC_ARM_TLS_CALL:
28089 case BFD_RELOC_ARM_THM_TLS_CALL:
28090 case BFD_RELOC_ARM_TLS_DESCSEQ:
28091 case BFD_RELOC_ARM_THM_TLS_DESCSEQ:
28092 case BFD_RELOC_ARM_TLS_GOTDESC:
28093 case BFD_RELOC_ARM_TLS_GD32:
28094 case BFD_RELOC_ARM_TLS_LE32:
28095 case BFD_RELOC_ARM_TLS_IE32:
28096 case BFD_RELOC_ARM_TLS_LDM32:
28097 case BFD_RELOC_ARM_TLS_LDO32:
28098 S_SET_THREAD_LOCAL (fixP->fx_addsy);
28101 /* Same handling as above, but with the arm_fdpic guard. */
28102 case BFD_RELOC_ARM_TLS_GD32_FDPIC:
28103 case BFD_RELOC_ARM_TLS_IE32_FDPIC:
28104 case BFD_RELOC_ARM_TLS_LDM32_FDPIC:
28107 S_SET_THREAD_LOCAL (fixP->fx_addsy);
28111 as_bad_where (fixP->fx_file, fixP->fx_line,
28112 _("Relocation supported only in FDPIC mode"));
28116 case BFD_RELOC_ARM_GOT32:
28117 case BFD_RELOC_ARM_GOTOFF:
28120 case BFD_RELOC_ARM_GOT_PREL:
28121 if (fixP->fx_done || !seg->use_rela_p)
28122 md_number_to_chars (buf, value, 4);
28125 case BFD_RELOC_ARM_TARGET2:
28126 /* TARGET2 is not partial-inplace, so we need to write the
28127 addend here for REL targets, because it won't be written out
28128 during reloc processing later. */
28129 if (fixP->fx_done || !seg->use_rela_p)
28130 md_number_to_chars (buf, fixP->fx_offset, 4);
28133 /* Relocations for FDPIC. */
28134 case BFD_RELOC_ARM_GOTFUNCDESC:
28135 case BFD_RELOC_ARM_GOTOFFFUNCDESC:
28136 case BFD_RELOC_ARM_FUNCDESC:
28139 if (fixP->fx_done || !seg->use_rela_p)
28140 md_number_to_chars (buf, 0, 4);
28144 as_bad_where (fixP->fx_file, fixP->fx_line,
28145 _("Relocation supported only in FDPIC mode"));
28150 case BFD_RELOC_RVA:
28152 case BFD_RELOC_ARM_TARGET1:
28153 case BFD_RELOC_ARM_ROSEGREL32:
28154 case BFD_RELOC_ARM_SBREL32:
28155 case BFD_RELOC_32_PCREL:
28157 case BFD_RELOC_32_SECREL:
28159 if (fixP->fx_done || !seg->use_rela_p)
28161 /* For WinCE we only do this for pcrel fixups. */
28162 if (fixP->fx_done || fixP->fx_pcrel)
28164 md_number_to_chars (buf, value, 4);
28168 case BFD_RELOC_ARM_PREL31:
28169 if (fixP->fx_done || !seg->use_rela_p)
28171 newval = md_chars_to_number (buf, 4) & 0x80000000;
28172 if ((value ^ (value >> 1)) & 0x40000000)
28174 as_bad_where (fixP->fx_file, fixP->fx_line,
28175 _("rel31 relocation overflow"));
28177 newval |= value & 0x7fffffff;
28178 md_number_to_chars (buf, newval, 4);
28183 case BFD_RELOC_ARM_CP_OFF_IMM:
28184 case BFD_RELOC_ARM_T32_CP_OFF_IMM:
28185 case BFD_RELOC_ARM_T32_VLDR_VSTR_OFF_IMM:
28186 if (fixP->fx_r_type == BFD_RELOC_ARM_CP_OFF_IMM)
28187 newval = md_chars_to_number (buf, INSN_SIZE);
28189 newval = get_thumb32_insn (buf);
28190 if ((newval & 0x0f200f00) == 0x0d000900)
28192 /* This is a fp16 vstr/vldr. The immediate offset in the mnemonic
28193 has permitted values that are multiples of 2, in the range 0
28195 if (value < -510 || value > 510 || (value & 1))
28196 as_bad_where (fixP->fx_file, fixP->fx_line,
28197 _("co-processor offset out of range"));
28199 else if ((newval & 0xfe001f80) == 0xec000f80)
28201 if (value < -511 || value > 512 || (value & 3))
28202 as_bad_where (fixP->fx_file, fixP->fx_line,
28203 _("co-processor offset out of range"));
28205 else if (value < -1023 || value > 1023 || (value & 3))
28206 as_bad_where (fixP->fx_file, fixP->fx_line,
28207 _("co-processor offset out of range"));
28212 if (fixP->fx_r_type == BFD_RELOC_ARM_CP_OFF_IMM
28213 || fixP->fx_r_type == BFD_RELOC_ARM_CP_OFF_IMM_S2)
28214 newval = md_chars_to_number (buf, INSN_SIZE);
28216 newval = get_thumb32_insn (buf);
28219 if (fixP->fx_r_type == BFD_RELOC_ARM_T32_VLDR_VSTR_OFF_IMM)
28220 newval &= 0xffffff80;
28222 newval &= 0xffffff00;
28226 if (fixP->fx_r_type == BFD_RELOC_ARM_T32_VLDR_VSTR_OFF_IMM)
28227 newval &= 0xff7fff80;
28229 newval &= 0xff7fff00;
28230 if ((newval & 0x0f200f00) == 0x0d000900)
28232 /* This is a fp16 vstr/vldr.
28234 It requires the immediate offset in the instruction is shifted
28235 left by 1 to be a half-word offset.
28237 Here, left shift by 1 first, and later right shift by 2
28238 should get the right offset. */
28241 newval |= (value >> 2) | (sign ? INDEX_UP : 0);
28243 if (fixP->fx_r_type == BFD_RELOC_ARM_CP_OFF_IMM
28244 || fixP->fx_r_type == BFD_RELOC_ARM_CP_OFF_IMM_S2)
28245 md_number_to_chars (buf, newval, INSN_SIZE);
28247 put_thumb32_insn (buf, newval);
28250 case BFD_RELOC_ARM_CP_OFF_IMM_S2:
28251 case BFD_RELOC_ARM_T32_CP_OFF_IMM_S2:
28252 if (value < -255 || value > 255)
28253 as_bad_where (fixP->fx_file, fixP->fx_line,
28254 _("co-processor offset out of range"));
28256 goto cp_off_common;
28258 case BFD_RELOC_ARM_THUMB_OFFSET:
28259 newval = md_chars_to_number (buf, THUMB_SIZE);
28260 /* Exactly what ranges, and where the offset is inserted depends
28261 on the type of instruction, we can establish this from the
28263 switch (newval >> 12)
28265 case 4: /* PC load. */
28266 /* Thumb PC loads are somewhat odd, bit 1 of the PC is
28267 forced to zero for these loads; md_pcrel_from has already
28268 compensated for this. */
28270 as_bad_where (fixP->fx_file, fixP->fx_line,
28271 _("invalid offset, target not word aligned (0x%08lX)"),
28272 (((unsigned long) fixP->fx_frag->fr_address
28273 + (unsigned long) fixP->fx_where) & ~3)
28274 + (unsigned long) value);
28276 if (value & ~0x3fc)
28277 as_bad_where (fixP->fx_file, fixP->fx_line,
28278 _("invalid offset, value too big (0x%08lX)"),
28281 newval |= value >> 2;
28284 case 9: /* SP load/store. */
28285 if (value & ~0x3fc)
28286 as_bad_where (fixP->fx_file, fixP->fx_line,
28287 _("invalid offset, value too big (0x%08lX)"),
28289 newval |= value >> 2;
28292 case 6: /* Word load/store. */
28294 as_bad_where (fixP->fx_file, fixP->fx_line,
28295 _("invalid offset, value too big (0x%08lX)"),
28297 newval |= value << 4; /* 6 - 2. */
28300 case 7: /* Byte load/store. */
28302 as_bad_where (fixP->fx_file, fixP->fx_line,
28303 _("invalid offset, value too big (0x%08lX)"),
28305 newval |= value << 6;
28308 case 8: /* Halfword load/store. */
28310 as_bad_where (fixP->fx_file, fixP->fx_line,
28311 _("invalid offset, value too big (0x%08lX)"),
28313 newval |= value << 5; /* 6 - 1. */
28317 as_bad_where (fixP->fx_file, fixP->fx_line,
28318 "Unable to process relocation for thumb opcode: %lx",
28319 (unsigned long) newval);
28322 md_number_to_chars (buf, newval, THUMB_SIZE);
28325 case BFD_RELOC_ARM_THUMB_ADD:
28326 /* This is a complicated relocation, since we use it for all of
28327 the following immediate relocations:
28331 9bit ADD/SUB SP word-aligned
28332 10bit ADD PC/SP word-aligned
28334 The type of instruction being processed is encoded in the
28341 newval = md_chars_to_number (buf, THUMB_SIZE);
28343 int rd = (newval >> 4) & 0xf;
28344 int rs = newval & 0xf;
28345 int subtract = !!(newval & 0x8000);
28347 /* Check for HI regs, only very restricted cases allowed:
28348 Adjusting SP, and using PC or SP to get an address. */
28349 if ((rd > 7 && (rd != REG_SP || rs != REG_SP))
28350 || (rs > 7 && rs != REG_SP && rs != REG_PC))
28351 as_bad_where (fixP->fx_file, fixP->fx_line,
28352 _("invalid Hi register with immediate"));
28354 /* If value is negative, choose the opposite instruction. */
28358 subtract = !subtract;
28360 as_bad_where (fixP->fx_file, fixP->fx_line,
28361 _("immediate value out of range"));
28366 if (value & ~0x1fc)
28367 as_bad_where (fixP->fx_file, fixP->fx_line,
28368 _("invalid immediate for stack address calculation"));
28369 newval = subtract ? T_OPCODE_SUB_ST : T_OPCODE_ADD_ST;
28370 newval |= value >> 2;
28372 else if (rs == REG_PC || rs == REG_SP)
28374 /* PR gas/18541. If the addition is for a defined symbol
28375 within range of an ADR instruction then accept it. */
28378 && fixP->fx_addsy != NULL)
28382 if (! S_IS_DEFINED (fixP->fx_addsy)
28383 || S_GET_SEGMENT (fixP->fx_addsy) != seg
28384 || S_IS_WEAK (fixP->fx_addsy))
28386 as_bad_where (fixP->fx_file, fixP->fx_line,
28387 _("address calculation needs a strongly defined nearby symbol"));
28391 offsetT v = fixP->fx_where + fixP->fx_frag->fr_address;
28393 /* Round up to the next 4-byte boundary. */
28398 v = S_GET_VALUE (fixP->fx_addsy) - v;
28402 as_bad_where (fixP->fx_file, fixP->fx_line,
28403 _("symbol too far away"));
28413 if (subtract || value & ~0x3fc)
28414 as_bad_where (fixP->fx_file, fixP->fx_line,
28415 _("invalid immediate for address calculation (value = 0x%08lX)"),
28416 (unsigned long) (subtract ? - value : value));
28417 newval = (rs == REG_PC ? T_OPCODE_ADD_PC : T_OPCODE_ADD_SP);
28419 newval |= value >> 2;
28424 as_bad_where (fixP->fx_file, fixP->fx_line,
28425 _("immediate value out of range"));
28426 newval = subtract ? T_OPCODE_SUB_I8 : T_OPCODE_ADD_I8;
28427 newval |= (rd << 8) | value;
28432 as_bad_where (fixP->fx_file, fixP->fx_line,
28433 _("immediate value out of range"));
28434 newval = subtract ? T_OPCODE_SUB_I3 : T_OPCODE_ADD_I3;
28435 newval |= rd | (rs << 3) | (value << 6);
28438 md_number_to_chars (buf, newval, THUMB_SIZE);
28441 case BFD_RELOC_ARM_THUMB_IMM:
28442 newval = md_chars_to_number (buf, THUMB_SIZE);
28443 if (value < 0 || value > 255)
28444 as_bad_where (fixP->fx_file, fixP->fx_line,
28445 _("invalid immediate: %ld is out of range"),
28448 md_number_to_chars (buf, newval, THUMB_SIZE);
28451 case BFD_RELOC_ARM_THUMB_SHIFT:
28452 /* 5bit shift value (0..32). LSL cannot take 32. */
28453 newval = md_chars_to_number (buf, THUMB_SIZE) & 0xf83f;
28454 temp = newval & 0xf800;
28455 if (value < 0 || value > 32 || (value == 32 && temp == T_OPCODE_LSL_I))
28456 as_bad_where (fixP->fx_file, fixP->fx_line,
28457 _("invalid shift value: %ld"), (long) value);
28458 /* Shifts of zero must be encoded as LSL. */
28460 newval = (newval & 0x003f) | T_OPCODE_LSL_I;
28461 /* Shifts of 32 are encoded as zero. */
28462 else if (value == 32)
28464 newval |= value << 6;
28465 md_number_to_chars (buf, newval, THUMB_SIZE);
28468 case BFD_RELOC_VTABLE_INHERIT:
28469 case BFD_RELOC_VTABLE_ENTRY:
28473 case BFD_RELOC_ARM_MOVW:
28474 case BFD_RELOC_ARM_MOVT:
28475 case BFD_RELOC_ARM_THUMB_MOVW:
28476 case BFD_RELOC_ARM_THUMB_MOVT:
28477 if (fixP->fx_done || !seg->use_rela_p)
28479 /* REL format relocations are limited to a 16-bit addend. */
28480 if (!fixP->fx_done)
28482 if (value < -0x8000 || value > 0x7fff)
28483 as_bad_where (fixP->fx_file, fixP->fx_line,
28484 _("offset out of range"));
28486 else if (fixP->fx_r_type == BFD_RELOC_ARM_MOVT
28487 || fixP->fx_r_type == BFD_RELOC_ARM_THUMB_MOVT)
28492 if (fixP->fx_r_type == BFD_RELOC_ARM_THUMB_MOVW
28493 || fixP->fx_r_type == BFD_RELOC_ARM_THUMB_MOVT)
28495 newval = get_thumb32_insn (buf);
28496 newval &= 0xfbf08f00;
28497 newval |= (value & 0xf000) << 4;
28498 newval |= (value & 0x0800) << 15;
28499 newval |= (value & 0x0700) << 4;
28500 newval |= (value & 0x00ff);
28501 put_thumb32_insn (buf, newval);
28505 newval = md_chars_to_number (buf, 4);
28506 newval &= 0xfff0f000;
28507 newval |= value & 0x0fff;
28508 newval |= (value & 0xf000) << 4;
28509 md_number_to_chars (buf, newval, 4);
28514 case BFD_RELOC_ARM_THUMB_ALU_ABS_G0_NC:
28515 case BFD_RELOC_ARM_THUMB_ALU_ABS_G1_NC:
28516 case BFD_RELOC_ARM_THUMB_ALU_ABS_G2_NC:
28517 case BFD_RELOC_ARM_THUMB_ALU_ABS_G3_NC:
28518 gas_assert (!fixP->fx_done);
28521 bfd_boolean is_mov;
28522 bfd_vma encoded_addend = value;
28524 /* Check that addend can be encoded in instruction. */
28525 if (!seg->use_rela_p && (value < 0 || value > 255))
28526 as_bad_where (fixP->fx_file, fixP->fx_line,
28527 _("the offset 0x%08lX is not representable"),
28528 (unsigned long) encoded_addend);
28530 /* Extract the instruction. */
28531 insn = md_chars_to_number (buf, THUMB_SIZE);
28532 is_mov = (insn & 0xf800) == 0x2000;
28537 if (!seg->use_rela_p)
28538 insn |= encoded_addend;
28544 /* Extract the instruction. */
28545 /* Encoding is the following
28550 /* The following conditions must be true :
28555 rd = (insn >> 4) & 0xf;
28557 if ((insn & 0x8000) || (rd != rs) || rd > 7)
28558 as_bad_where (fixP->fx_file, fixP->fx_line,
28559 _("Unable to process relocation for thumb opcode: %lx"),
28560 (unsigned long) insn);
28562 /* Encode as ADD immediate8 thumb 1 code. */
28563 insn = 0x3000 | (rd << 8);
28565 /* Place the encoded addend into the first 8 bits of the
28567 if (!seg->use_rela_p)
28568 insn |= encoded_addend;
28571 /* Update the instruction. */
28572 md_number_to_chars (buf, insn, THUMB_SIZE);
28576 case BFD_RELOC_ARM_ALU_PC_G0_NC:
28577 case BFD_RELOC_ARM_ALU_PC_G0:
28578 case BFD_RELOC_ARM_ALU_PC_G1_NC:
28579 case BFD_RELOC_ARM_ALU_PC_G1:
28580 case BFD_RELOC_ARM_ALU_PC_G2:
28581 case BFD_RELOC_ARM_ALU_SB_G0_NC:
28582 case BFD_RELOC_ARM_ALU_SB_G0:
28583 case BFD_RELOC_ARM_ALU_SB_G1_NC:
28584 case BFD_RELOC_ARM_ALU_SB_G1:
28585 case BFD_RELOC_ARM_ALU_SB_G2:
28586 gas_assert (!fixP->fx_done);
28587 if (!seg->use_rela_p)
28590 bfd_vma encoded_addend;
28591 bfd_vma addend_abs = llabs (value);
28593 /* Check that the absolute value of the addend can be
28594 expressed as an 8-bit constant plus a rotation. */
28595 encoded_addend = encode_arm_immediate (addend_abs);
28596 if (encoded_addend == (unsigned int) FAIL)
28597 as_bad_where (fixP->fx_file, fixP->fx_line,
28598 _("the offset 0x%08lX is not representable"),
28599 (unsigned long) addend_abs);
28601 /* Extract the instruction. */
28602 insn = md_chars_to_number (buf, INSN_SIZE);
28604 /* If the addend is positive, use an ADD instruction.
28605 Otherwise use a SUB. Take care not to destroy the S bit. */
28606 insn &= 0xff1fffff;
28612 /* Place the encoded addend into the first 12 bits of the
28614 insn &= 0xfffff000;
28615 insn |= encoded_addend;
28617 /* Update the instruction. */
28618 md_number_to_chars (buf, insn, INSN_SIZE);
28622 case BFD_RELOC_ARM_LDR_PC_G0:
28623 case BFD_RELOC_ARM_LDR_PC_G1:
28624 case BFD_RELOC_ARM_LDR_PC_G2:
28625 case BFD_RELOC_ARM_LDR_SB_G0:
28626 case BFD_RELOC_ARM_LDR_SB_G1:
28627 case BFD_RELOC_ARM_LDR_SB_G2:
28628 gas_assert (!fixP->fx_done);
28629 if (!seg->use_rela_p)
28632 bfd_vma addend_abs = llabs (value);
28634 /* Check that the absolute value of the addend can be
28635 encoded in 12 bits. */
28636 if (addend_abs >= 0x1000)
28637 as_bad_where (fixP->fx_file, fixP->fx_line,
28638 _("bad offset 0x%08lX (only 12 bits available for the magnitude)"),
28639 (unsigned long) addend_abs);
28641 /* Extract the instruction. */
28642 insn = md_chars_to_number (buf, INSN_SIZE);
28644 /* If the addend is negative, clear bit 23 of the instruction.
28645 Otherwise set it. */
28647 insn &= ~(1 << 23);
28651 /* Place the absolute value of the addend into the first 12 bits
28652 of the instruction. */
28653 insn &= 0xfffff000;
28654 insn |= addend_abs;
28656 /* Update the instruction. */
28657 md_number_to_chars (buf, insn, INSN_SIZE);
28661 case BFD_RELOC_ARM_LDRS_PC_G0:
28662 case BFD_RELOC_ARM_LDRS_PC_G1:
28663 case BFD_RELOC_ARM_LDRS_PC_G2:
28664 case BFD_RELOC_ARM_LDRS_SB_G0:
28665 case BFD_RELOC_ARM_LDRS_SB_G1:
28666 case BFD_RELOC_ARM_LDRS_SB_G2:
28667 gas_assert (!fixP->fx_done);
28668 if (!seg->use_rela_p)
28671 bfd_vma addend_abs = llabs (value);
28673 /* Check that the absolute value of the addend can be
28674 encoded in 8 bits. */
28675 if (addend_abs >= 0x100)
28676 as_bad_where (fixP->fx_file, fixP->fx_line,
28677 _("bad offset 0x%08lX (only 8 bits available for the magnitude)"),
28678 (unsigned long) addend_abs);
28680 /* Extract the instruction. */
28681 insn = md_chars_to_number (buf, INSN_SIZE);
28683 /* If the addend is negative, clear bit 23 of the instruction.
28684 Otherwise set it. */
28686 insn &= ~(1 << 23);
28690 /* Place the first four bits of the absolute value of the addend
28691 into the first 4 bits of the instruction, and the remaining
28692 four into bits 8 .. 11. */
28693 insn &= 0xfffff0f0;
28694 insn |= (addend_abs & 0xf) | ((addend_abs & 0xf0) << 4);
28696 /* Update the instruction. */
28697 md_number_to_chars (buf, insn, INSN_SIZE);
28701 case BFD_RELOC_ARM_LDC_PC_G0:
28702 case BFD_RELOC_ARM_LDC_PC_G1:
28703 case BFD_RELOC_ARM_LDC_PC_G2:
28704 case BFD_RELOC_ARM_LDC_SB_G0:
28705 case BFD_RELOC_ARM_LDC_SB_G1:
28706 case BFD_RELOC_ARM_LDC_SB_G2:
28707 gas_assert (!fixP->fx_done);
28708 if (!seg->use_rela_p)
28711 bfd_vma addend_abs = llabs (value);
28713 /* Check that the absolute value of the addend is a multiple of
28714 four and, when divided by four, fits in 8 bits. */
28715 if (addend_abs & 0x3)
28716 as_bad_where (fixP->fx_file, fixP->fx_line,
28717 _("bad offset 0x%08lX (must be word-aligned)"),
28718 (unsigned long) addend_abs);
28720 if ((addend_abs >> 2) > 0xff)
28721 as_bad_where (fixP->fx_file, fixP->fx_line,
28722 _("bad offset 0x%08lX (must be an 8-bit number of words)"),
28723 (unsigned long) addend_abs);
28725 /* Extract the instruction. */
28726 insn = md_chars_to_number (buf, INSN_SIZE);
28728 /* If the addend is negative, clear bit 23 of the instruction.
28729 Otherwise set it. */
28731 insn &= ~(1 << 23);
28735 /* Place the addend (divided by four) into the first eight
28736 bits of the instruction. */
28737 insn &= 0xfffffff0;
28738 insn |= addend_abs >> 2;
28740 /* Update the instruction. */
28741 md_number_to_chars (buf, insn, INSN_SIZE);
28745 case BFD_RELOC_THUMB_PCREL_BRANCH5:
28747 && (S_GET_SEGMENT (fixP->fx_addsy) == seg)
28748 && !S_FORCE_RELOC (fixP->fx_addsy, TRUE)
28749 && ARM_IS_FUNC (fixP->fx_addsy)
28750 && ARM_CPU_HAS_FEATURE (selected_cpu, arm_ext_v8_1m_main))
28752 /* Force a relocation for a branch 5 bits wide. */
28755 if (v8_1_branch_value_check (value, 5, FALSE) == FAIL)
28756 as_bad_where (fixP->fx_file, fixP->fx_line,
28759 if (fixP->fx_done || !seg->use_rela_p)
28761 addressT boff = value >> 1;
28763 newval = md_chars_to_number (buf, THUMB_SIZE);
28764 newval |= (boff << 7);
28765 md_number_to_chars (buf, newval, THUMB_SIZE);
28769 case BFD_RELOC_THUMB_PCREL_BFCSEL:
28771 && (S_GET_SEGMENT (fixP->fx_addsy) == seg)
28772 && !S_FORCE_RELOC (fixP->fx_addsy, TRUE)
28773 && ARM_IS_FUNC (fixP->fx_addsy)
28774 && ARM_CPU_HAS_FEATURE (selected_cpu, arm_ext_v8_1m_main))
28778 if ((value & ~0x7f) && ((value & ~0x3f) != ~0x3f))
28779 as_bad_where (fixP->fx_file, fixP->fx_line,
28780 _("branch out of range"));
28782 if (fixP->fx_done || !seg->use_rela_p)
28784 newval = md_chars_to_number (buf, THUMB_SIZE);
28786 addressT boff = ((newval & 0x0780) >> 7) << 1;
28787 addressT diff = value - boff;
28791 newval |= 1 << 1; /* T bit. */
28793 else if (diff != 2)
28795 as_bad_where (fixP->fx_file, fixP->fx_line,
28796 _("out of range label-relative fixup value"));
28798 md_number_to_chars (buf, newval, THUMB_SIZE);
28802 case BFD_RELOC_ARM_THUMB_BF17:
28804 && (S_GET_SEGMENT (fixP->fx_addsy) == seg)
28805 && !S_FORCE_RELOC (fixP->fx_addsy, TRUE)
28806 && ARM_IS_FUNC (fixP->fx_addsy)
28807 && ARM_CPU_HAS_FEATURE (selected_cpu, arm_ext_v8_1m_main))
28809 /* Force a relocation for a branch 17 bits wide. */
28813 if (v8_1_branch_value_check (value, 17, TRUE) == FAIL)
28814 as_bad_where (fixP->fx_file, fixP->fx_line,
28817 if (fixP->fx_done || !seg->use_rela_p)
28820 addressT immA, immB, immC;
28822 immA = (value & 0x0001f000) >> 12;
28823 immB = (value & 0x00000ffc) >> 2;
28824 immC = (value & 0x00000002) >> 1;
28826 newval = md_chars_to_number (buf, THUMB_SIZE);
28827 newval2 = md_chars_to_number (buf + THUMB_SIZE, THUMB_SIZE);
28829 newval2 |= (immC << 11) | (immB << 1);
28830 md_number_to_chars (buf, newval, THUMB_SIZE);
28831 md_number_to_chars (buf + THUMB_SIZE, newval2, THUMB_SIZE);
28835 case BFD_RELOC_ARM_THUMB_BF19:
28837 && (S_GET_SEGMENT (fixP->fx_addsy) == seg)
28838 && !S_FORCE_RELOC (fixP->fx_addsy, TRUE)
28839 && ARM_IS_FUNC (fixP->fx_addsy)
28840 && ARM_CPU_HAS_FEATURE (selected_cpu, arm_ext_v8_1m_main))
28842 /* Force a relocation for a branch 19 bits wide. */
28846 if (v8_1_branch_value_check (value, 19, TRUE) == FAIL)
28847 as_bad_where (fixP->fx_file, fixP->fx_line,
28850 if (fixP->fx_done || !seg->use_rela_p)
28853 addressT immA, immB, immC;
28855 immA = (value & 0x0007f000) >> 12;
28856 immB = (value & 0x00000ffc) >> 2;
28857 immC = (value & 0x00000002) >> 1;
28859 newval = md_chars_to_number (buf, THUMB_SIZE);
28860 newval2 = md_chars_to_number (buf + THUMB_SIZE, THUMB_SIZE);
28862 newval2 |= (immC << 11) | (immB << 1);
28863 md_number_to_chars (buf, newval, THUMB_SIZE);
28864 md_number_to_chars (buf + THUMB_SIZE, newval2, THUMB_SIZE);
28868 case BFD_RELOC_ARM_THUMB_BF13:
28870 && (S_GET_SEGMENT (fixP->fx_addsy) == seg)
28871 && !S_FORCE_RELOC (fixP->fx_addsy, TRUE)
28872 && ARM_IS_FUNC (fixP->fx_addsy)
28873 && ARM_CPU_HAS_FEATURE (selected_cpu, arm_ext_v8_1m_main))
28875 /* Force a relocation for a branch 13 bits wide. */
28879 if (v8_1_branch_value_check (value, 13, TRUE) == FAIL)
28880 as_bad_where (fixP->fx_file, fixP->fx_line,
28883 if (fixP->fx_done || !seg->use_rela_p)
28886 addressT immA, immB, immC;
28888 immA = (value & 0x00001000) >> 12;
28889 immB = (value & 0x00000ffc) >> 2;
28890 immC = (value & 0x00000002) >> 1;
28892 newval = md_chars_to_number (buf, THUMB_SIZE);
28893 newval2 = md_chars_to_number (buf + THUMB_SIZE, THUMB_SIZE);
28895 newval2 |= (immC << 11) | (immB << 1);
28896 md_number_to_chars (buf, newval, THUMB_SIZE);
28897 md_number_to_chars (buf + THUMB_SIZE, newval2, THUMB_SIZE);
28901 case BFD_RELOC_ARM_THUMB_LOOP12:
28903 && (S_GET_SEGMENT (fixP->fx_addsy) == seg)
28904 && !S_FORCE_RELOC (fixP->fx_addsy, TRUE)
28905 && ARM_IS_FUNC (fixP->fx_addsy)
28906 && ARM_CPU_HAS_FEATURE (selected_cpu, arm_ext_v8_1m_main))
28908 /* Force a relocation for a branch 12 bits wide. */
28912 bfd_vma insn = get_thumb32_insn (buf);
28913 /* le lr, <label>, le <label> or letp lr, <label> */
28914 if (((insn & 0xffffffff) == 0xf00fc001)
28915 || ((insn & 0xffffffff) == 0xf02fc001)
28916 || ((insn & 0xffffffff) == 0xf01fc001))
28919 if (v8_1_branch_value_check (value, 12, FALSE) == FAIL)
28920 as_bad_where (fixP->fx_file, fixP->fx_line,
28922 if (fixP->fx_done || !seg->use_rela_p)
28924 addressT imml, immh;
28926 immh = (value & 0x00000ffc) >> 2;
28927 imml = (value & 0x00000002) >> 1;
28929 newval = md_chars_to_number (buf + THUMB_SIZE, THUMB_SIZE);
28930 newval |= (imml << 11) | (immh << 1);
28931 md_number_to_chars (buf + THUMB_SIZE, newval, THUMB_SIZE);
28935 case BFD_RELOC_ARM_V4BX:
28936 /* This will need to go in the object file. */
28940 case BFD_RELOC_UNUSED:
28942 as_bad_where (fixP->fx_file, fixP->fx_line,
28943 _("bad relocation fixup type (%d)"), fixP->fx_r_type);
28947 /* Translate internal representation of relocation info to BFD target
28951 tc_gen_reloc (asection *section, fixS *fixp)
28954 bfd_reloc_code_real_type code;
28956 reloc = XNEW (arelent);
28958 reloc->sym_ptr_ptr = XNEW (asymbol *);
28959 *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
28960 reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
28962 if (fixp->fx_pcrel)
28964 if (section->use_rela_p)
28965 fixp->fx_offset -= md_pcrel_from_section (fixp, section);
28967 fixp->fx_offset = reloc->address;
28969 reloc->addend = fixp->fx_offset;
28971 switch (fixp->fx_r_type)
28974 if (fixp->fx_pcrel)
28976 code = BFD_RELOC_8_PCREL;
28979 /* Fall through. */
28982 if (fixp->fx_pcrel)
28984 code = BFD_RELOC_16_PCREL;
28987 /* Fall through. */
28990 if (fixp->fx_pcrel)
28992 code = BFD_RELOC_32_PCREL;
28995 /* Fall through. */
28997 case BFD_RELOC_ARM_MOVW:
28998 if (fixp->fx_pcrel)
29000 code = BFD_RELOC_ARM_MOVW_PCREL;
29003 /* Fall through. */
29005 case BFD_RELOC_ARM_MOVT:
29006 if (fixp->fx_pcrel)
29008 code = BFD_RELOC_ARM_MOVT_PCREL;
29011 /* Fall through. */
29013 case BFD_RELOC_ARM_THUMB_MOVW:
29014 if (fixp->fx_pcrel)
29016 code = BFD_RELOC_ARM_THUMB_MOVW_PCREL;
29019 /* Fall through. */
29021 case BFD_RELOC_ARM_THUMB_MOVT:
29022 if (fixp->fx_pcrel)
29024 code = BFD_RELOC_ARM_THUMB_MOVT_PCREL;
29027 /* Fall through. */
29029 case BFD_RELOC_NONE:
29030 case BFD_RELOC_ARM_PCREL_BRANCH:
29031 case BFD_RELOC_ARM_PCREL_BLX:
29032 case BFD_RELOC_RVA:
29033 case BFD_RELOC_THUMB_PCREL_BRANCH7:
29034 case BFD_RELOC_THUMB_PCREL_BRANCH9:
29035 case BFD_RELOC_THUMB_PCREL_BRANCH12:
29036 case BFD_RELOC_THUMB_PCREL_BRANCH20:
29037 case BFD_RELOC_THUMB_PCREL_BRANCH23:
29038 case BFD_RELOC_THUMB_PCREL_BRANCH25:
29039 case BFD_RELOC_VTABLE_ENTRY:
29040 case BFD_RELOC_VTABLE_INHERIT:
29042 case BFD_RELOC_32_SECREL:
29044 code = fixp->fx_r_type;
29047 case BFD_RELOC_THUMB_PCREL_BLX:
29049 if (EF_ARM_EABI_VERSION (meabi_flags) >= EF_ARM_EABI_VER4)
29050 code = BFD_RELOC_THUMB_PCREL_BRANCH23;
29053 code = BFD_RELOC_THUMB_PCREL_BLX;
29056 case BFD_RELOC_ARM_LITERAL:
29057 case BFD_RELOC_ARM_HWLITERAL:
29058 /* If this is called then the a literal has
29059 been referenced across a section boundary. */
29060 as_bad_where (fixp->fx_file, fixp->fx_line,
29061 _("literal referenced across section boundary"));
29065 case BFD_RELOC_ARM_TLS_CALL:
29066 case BFD_RELOC_ARM_THM_TLS_CALL:
29067 case BFD_RELOC_ARM_TLS_DESCSEQ:
29068 case BFD_RELOC_ARM_THM_TLS_DESCSEQ:
29069 case BFD_RELOC_ARM_GOT32:
29070 case BFD_RELOC_ARM_GOTOFF:
29071 case BFD_RELOC_ARM_GOT_PREL:
29072 case BFD_RELOC_ARM_PLT32:
29073 case BFD_RELOC_ARM_TARGET1:
29074 case BFD_RELOC_ARM_ROSEGREL32:
29075 case BFD_RELOC_ARM_SBREL32:
29076 case BFD_RELOC_ARM_PREL31:
29077 case BFD_RELOC_ARM_TARGET2:
29078 case BFD_RELOC_ARM_TLS_LDO32:
29079 case BFD_RELOC_ARM_PCREL_CALL:
29080 case BFD_RELOC_ARM_PCREL_JUMP:
29081 case BFD_RELOC_ARM_ALU_PC_G0_NC:
29082 case BFD_RELOC_ARM_ALU_PC_G0:
29083 case BFD_RELOC_ARM_ALU_PC_G1_NC:
29084 case BFD_RELOC_ARM_ALU_PC_G1:
29085 case BFD_RELOC_ARM_ALU_PC_G2:
29086 case BFD_RELOC_ARM_LDR_PC_G0:
29087 case BFD_RELOC_ARM_LDR_PC_G1:
29088 case BFD_RELOC_ARM_LDR_PC_G2:
29089 case BFD_RELOC_ARM_LDRS_PC_G0:
29090 case BFD_RELOC_ARM_LDRS_PC_G1:
29091 case BFD_RELOC_ARM_LDRS_PC_G2:
29092 case BFD_RELOC_ARM_LDC_PC_G0:
29093 case BFD_RELOC_ARM_LDC_PC_G1:
29094 case BFD_RELOC_ARM_LDC_PC_G2:
29095 case BFD_RELOC_ARM_ALU_SB_G0_NC:
29096 case BFD_RELOC_ARM_ALU_SB_G0:
29097 case BFD_RELOC_ARM_ALU_SB_G1_NC:
29098 case BFD_RELOC_ARM_ALU_SB_G1:
29099 case BFD_RELOC_ARM_ALU_SB_G2:
29100 case BFD_RELOC_ARM_LDR_SB_G0:
29101 case BFD_RELOC_ARM_LDR_SB_G1:
29102 case BFD_RELOC_ARM_LDR_SB_G2:
29103 case BFD_RELOC_ARM_LDRS_SB_G0:
29104 case BFD_RELOC_ARM_LDRS_SB_G1:
29105 case BFD_RELOC_ARM_LDRS_SB_G2:
29106 case BFD_RELOC_ARM_LDC_SB_G0:
29107 case BFD_RELOC_ARM_LDC_SB_G1:
29108 case BFD_RELOC_ARM_LDC_SB_G2:
29109 case BFD_RELOC_ARM_V4BX:
29110 case BFD_RELOC_ARM_THUMB_ALU_ABS_G0_NC:
29111 case BFD_RELOC_ARM_THUMB_ALU_ABS_G1_NC:
29112 case BFD_RELOC_ARM_THUMB_ALU_ABS_G2_NC:
29113 case BFD_RELOC_ARM_THUMB_ALU_ABS_G3_NC:
29114 case BFD_RELOC_ARM_GOTFUNCDESC:
29115 case BFD_RELOC_ARM_GOTOFFFUNCDESC:
29116 case BFD_RELOC_ARM_FUNCDESC:
29117 case BFD_RELOC_ARM_THUMB_BF17:
29118 case BFD_RELOC_ARM_THUMB_BF19:
29119 case BFD_RELOC_ARM_THUMB_BF13:
29120 code = fixp->fx_r_type;
29123 case BFD_RELOC_ARM_TLS_GOTDESC:
29124 case BFD_RELOC_ARM_TLS_GD32:
29125 case BFD_RELOC_ARM_TLS_GD32_FDPIC:
29126 case BFD_RELOC_ARM_TLS_LE32:
29127 case BFD_RELOC_ARM_TLS_IE32:
29128 case BFD_RELOC_ARM_TLS_IE32_FDPIC:
29129 case BFD_RELOC_ARM_TLS_LDM32:
29130 case BFD_RELOC_ARM_TLS_LDM32_FDPIC:
29131 /* BFD will include the symbol's address in the addend.
29132 But we don't want that, so subtract it out again here. */
29133 if (!S_IS_COMMON (fixp->fx_addsy))
29134 reloc->addend -= (*reloc->sym_ptr_ptr)->value;
29135 code = fixp->fx_r_type;
29139 case BFD_RELOC_ARM_IMMEDIATE:
29140 as_bad_where (fixp->fx_file, fixp->fx_line,
29141 _("internal relocation (type: IMMEDIATE) not fixed up"));
29144 case BFD_RELOC_ARM_ADRL_IMMEDIATE:
29145 as_bad_where (fixp->fx_file, fixp->fx_line,
29146 _("ADRL used for a symbol not defined in the same file"));
29149 case BFD_RELOC_THUMB_PCREL_BRANCH5:
29150 case BFD_RELOC_THUMB_PCREL_BFCSEL:
29151 case BFD_RELOC_ARM_THUMB_LOOP12:
29152 as_bad_where (fixp->fx_file, fixp->fx_line,
29153 _("%s used for a symbol not defined in the same file"),
29154 bfd_get_reloc_code_name (fixp->fx_r_type));
29157 case BFD_RELOC_ARM_OFFSET_IMM:
29158 if (section->use_rela_p)
29160 code = fixp->fx_r_type;
29164 if (fixp->fx_addsy != NULL
29165 && !S_IS_DEFINED (fixp->fx_addsy)
29166 && S_IS_LOCAL (fixp->fx_addsy))
29168 as_bad_where (fixp->fx_file, fixp->fx_line,
29169 _("undefined local label `%s'"),
29170 S_GET_NAME (fixp->fx_addsy));
29174 as_bad_where (fixp->fx_file, fixp->fx_line,
29175 _("internal_relocation (type: OFFSET_IMM) not fixed up"));
29182 switch (fixp->fx_r_type)
29184 case BFD_RELOC_NONE: type = "NONE"; break;
29185 case BFD_RELOC_ARM_OFFSET_IMM8: type = "OFFSET_IMM8"; break;
29186 case BFD_RELOC_ARM_SHIFT_IMM: type = "SHIFT_IMM"; break;
29187 case BFD_RELOC_ARM_SMC: type = "SMC"; break;
29188 case BFD_RELOC_ARM_SWI: type = "SWI"; break;
29189 case BFD_RELOC_ARM_MULTI: type = "MULTI"; break;
29190 case BFD_RELOC_ARM_CP_OFF_IMM: type = "CP_OFF_IMM"; break;
29191 case BFD_RELOC_ARM_T32_OFFSET_IMM: type = "T32_OFFSET_IMM"; break;
29192 case BFD_RELOC_ARM_T32_CP_OFF_IMM: type = "T32_CP_OFF_IMM"; break;
29193 case BFD_RELOC_ARM_THUMB_ADD: type = "THUMB_ADD"; break;
29194 case BFD_RELOC_ARM_THUMB_SHIFT: type = "THUMB_SHIFT"; break;
29195 case BFD_RELOC_ARM_THUMB_IMM: type = "THUMB_IMM"; break;
29196 case BFD_RELOC_ARM_THUMB_OFFSET: type = "THUMB_OFFSET"; break;
29197 default: type = _("<unknown>"); break;
29199 as_bad_where (fixp->fx_file, fixp->fx_line,
29200 _("cannot represent %s relocation in this object file format"),
29207 if ((code == BFD_RELOC_32_PCREL || code == BFD_RELOC_32)
29209 && fixp->fx_addsy == GOT_symbol)
29211 code = BFD_RELOC_ARM_GOTPC;
29212 reloc->addend = fixp->fx_offset = reloc->address;
29216 reloc->howto = bfd_reloc_type_lookup (stdoutput, code);
29218 if (reloc->howto == NULL)
29220 as_bad_where (fixp->fx_file, fixp->fx_line,
29221 _("cannot represent %s relocation in this object file format"),
29222 bfd_get_reloc_code_name (code));
29226 /* HACK: Since arm ELF uses Rel instead of Rela, encode the
29227 vtable entry to be used in the relocation's section offset. */
29228 if (fixp->fx_r_type == BFD_RELOC_VTABLE_ENTRY)
29229 reloc->address = fixp->fx_offset;
29234 /* This fix_new is called by cons via TC_CONS_FIX_NEW. */
29237 cons_fix_new_arm (fragS * frag,
29241 bfd_reloc_code_real_type reloc)
29246 FIXME: @@ Should look at CPU word size. */
29250 reloc = BFD_RELOC_8;
29253 reloc = BFD_RELOC_16;
29257 reloc = BFD_RELOC_32;
29260 reloc = BFD_RELOC_64;
29265 if (exp->X_op == O_secrel)
29267 exp->X_op = O_symbol;
29268 reloc = BFD_RELOC_32_SECREL;
29272 fix_new_exp (frag, where, size, exp, pcrel, reloc);
29275 #if defined (OBJ_COFF)
29277 arm_validate_fix (fixS * fixP)
29279 /* If the destination of the branch is a defined symbol which does not have
29280 the THUMB_FUNC attribute, then we must be calling a function which has
29281 the (interfacearm) attribute. We look for the Thumb entry point to that
29282 function and change the branch to refer to that function instead. */
29283 if (fixP->fx_r_type == BFD_RELOC_THUMB_PCREL_BRANCH23
29284 && fixP->fx_addsy != NULL
29285 && S_IS_DEFINED (fixP->fx_addsy)
29286 && ! THUMB_IS_FUNC (fixP->fx_addsy))
29288 fixP->fx_addsy = find_real_start (fixP->fx_addsy);
29295 arm_force_relocation (struct fix * fixp)
29297 #if defined (OBJ_COFF) && defined (TE_PE)
29298 if (fixp->fx_r_type == BFD_RELOC_RVA)
29302 /* In case we have a call or a branch to a function in ARM ISA mode from
29303 a thumb function or vice-versa force the relocation. These relocations
29304 are cleared off for some cores that might have blx and simple transformations
29308 switch (fixp->fx_r_type)
29310 case BFD_RELOC_ARM_PCREL_JUMP:
29311 case BFD_RELOC_ARM_PCREL_CALL:
29312 case BFD_RELOC_THUMB_PCREL_BLX:
29313 if (THUMB_IS_FUNC (fixp->fx_addsy))
29317 case BFD_RELOC_ARM_PCREL_BLX:
29318 case BFD_RELOC_THUMB_PCREL_BRANCH25:
29319 case BFD_RELOC_THUMB_PCREL_BRANCH20:
29320 case BFD_RELOC_THUMB_PCREL_BRANCH23:
29321 if (ARM_IS_FUNC (fixp->fx_addsy))
29330 /* Resolve these relocations even if the symbol is extern or weak.
29331 Technically this is probably wrong due to symbol preemption.
29332 In practice these relocations do not have enough range to be useful
29333 at dynamic link time, and some code (e.g. in the Linux kernel)
29334 expects these references to be resolved. */
29335 if (fixp->fx_r_type == BFD_RELOC_ARM_IMMEDIATE
29336 || fixp->fx_r_type == BFD_RELOC_ARM_OFFSET_IMM
29337 || fixp->fx_r_type == BFD_RELOC_ARM_OFFSET_IMM8
29338 || fixp->fx_r_type == BFD_RELOC_ARM_ADRL_IMMEDIATE
29339 || fixp->fx_r_type == BFD_RELOC_ARM_CP_OFF_IMM
29340 || fixp->fx_r_type == BFD_RELOC_ARM_CP_OFF_IMM_S2
29341 || fixp->fx_r_type == BFD_RELOC_ARM_THUMB_OFFSET
29342 || fixp->fx_r_type == BFD_RELOC_ARM_T32_ADD_IMM
29343 || fixp->fx_r_type == BFD_RELOC_ARM_T32_IMMEDIATE
29344 || fixp->fx_r_type == BFD_RELOC_ARM_T32_IMM12
29345 || fixp->fx_r_type == BFD_RELOC_ARM_T32_OFFSET_IMM
29346 || fixp->fx_r_type == BFD_RELOC_ARM_T32_ADD_PC12
29347 || fixp->fx_r_type == BFD_RELOC_ARM_T32_CP_OFF_IMM
29348 || fixp->fx_r_type == BFD_RELOC_ARM_T32_CP_OFF_IMM_S2)
29351 /* Always leave these relocations for the linker. */
29352 if ((fixp->fx_r_type >= BFD_RELOC_ARM_ALU_PC_G0_NC
29353 && fixp->fx_r_type <= BFD_RELOC_ARM_LDC_SB_G2)
29354 || fixp->fx_r_type == BFD_RELOC_ARM_LDR_PC_G0)
29357 /* Always generate relocations against function symbols. */
29358 if (fixp->fx_r_type == BFD_RELOC_32
29360 && (symbol_get_bfdsym (fixp->fx_addsy)->flags & BSF_FUNCTION))
29363 return generic_force_reloc (fixp);
29366 #if defined (OBJ_ELF) || defined (OBJ_COFF)
29367 /* Relocations against function names must be left unadjusted,
29368 so that the linker can use this information to generate interworking
29369 stubs. The MIPS version of this function
29370 also prevents relocations that are mips-16 specific, but I do not
29371 know why it does this.
29374 There is one other problem that ought to be addressed here, but
29375 which currently is not: Taking the address of a label (rather
29376 than a function) and then later jumping to that address. Such
29377 addresses also ought to have their bottom bit set (assuming that
29378 they reside in Thumb code), but at the moment they will not. */
29381 arm_fix_adjustable (fixS * fixP)
29383 if (fixP->fx_addsy == NULL)
29386 /* Preserve relocations against symbols with function type. */
29387 if (symbol_get_bfdsym (fixP->fx_addsy)->flags & BSF_FUNCTION)
29390 if (THUMB_IS_FUNC (fixP->fx_addsy)
29391 && fixP->fx_subsy == NULL)
29394 /* We need the symbol name for the VTABLE entries. */
29395 if ( fixP->fx_r_type == BFD_RELOC_VTABLE_INHERIT
29396 || fixP->fx_r_type == BFD_RELOC_VTABLE_ENTRY)
29399 /* Don't allow symbols to be discarded on GOT related relocs. */
29400 if (fixP->fx_r_type == BFD_RELOC_ARM_PLT32
29401 || fixP->fx_r_type == BFD_RELOC_ARM_GOT32
29402 || fixP->fx_r_type == BFD_RELOC_ARM_GOTOFF
29403 || fixP->fx_r_type == BFD_RELOC_ARM_TLS_GD32
29404 || fixP->fx_r_type == BFD_RELOC_ARM_TLS_GD32_FDPIC
29405 || fixP->fx_r_type == BFD_RELOC_ARM_TLS_LE32
29406 || fixP->fx_r_type == BFD_RELOC_ARM_TLS_IE32
29407 || fixP->fx_r_type == BFD_RELOC_ARM_TLS_IE32_FDPIC
29408 || fixP->fx_r_type == BFD_RELOC_ARM_TLS_LDM32
29409 || fixP->fx_r_type == BFD_RELOC_ARM_TLS_LDM32_FDPIC
29410 || fixP->fx_r_type == BFD_RELOC_ARM_TLS_LDO32
29411 || fixP->fx_r_type == BFD_RELOC_ARM_TLS_GOTDESC
29412 || fixP->fx_r_type == BFD_RELOC_ARM_TLS_CALL
29413 || fixP->fx_r_type == BFD_RELOC_ARM_THM_TLS_CALL
29414 || fixP->fx_r_type == BFD_RELOC_ARM_TLS_DESCSEQ
29415 || fixP->fx_r_type == BFD_RELOC_ARM_THM_TLS_DESCSEQ
29416 || fixP->fx_r_type == BFD_RELOC_ARM_TARGET2)
29419 /* Similarly for group relocations. */
29420 if ((fixP->fx_r_type >= BFD_RELOC_ARM_ALU_PC_G0_NC
29421 && fixP->fx_r_type <= BFD_RELOC_ARM_LDC_SB_G2)
29422 || fixP->fx_r_type == BFD_RELOC_ARM_LDR_PC_G0)
29425 /* MOVW/MOVT REL relocations have limited offsets, so keep the symbols. */
29426 if (fixP->fx_r_type == BFD_RELOC_ARM_MOVW
29427 || fixP->fx_r_type == BFD_RELOC_ARM_MOVT
29428 || fixP->fx_r_type == BFD_RELOC_ARM_MOVW_PCREL
29429 || fixP->fx_r_type == BFD_RELOC_ARM_MOVT_PCREL
29430 || fixP->fx_r_type == BFD_RELOC_ARM_THUMB_MOVW
29431 || fixP->fx_r_type == BFD_RELOC_ARM_THUMB_MOVT
29432 || fixP->fx_r_type == BFD_RELOC_ARM_THUMB_MOVW_PCREL
29433 || fixP->fx_r_type == BFD_RELOC_ARM_THUMB_MOVT_PCREL)
29436 /* BFD_RELOC_ARM_THUMB_ALU_ABS_Gx_NC relocations have VERY limited
29437 offsets, so keep these symbols. */
29438 if (fixP->fx_r_type >= BFD_RELOC_ARM_THUMB_ALU_ABS_G0_NC
29439 && fixP->fx_r_type <= BFD_RELOC_ARM_THUMB_ALU_ABS_G3_NC)
29444 #endif /* defined (OBJ_ELF) || defined (OBJ_COFF) */
29448 elf32_arm_target_format (void)
29451 return (target_big_endian
29452 ? "elf32-bigarm-symbian"
29453 : "elf32-littlearm-symbian");
29454 #elif defined (TE_VXWORKS)
29455 return (target_big_endian
29456 ? "elf32-bigarm-vxworks"
29457 : "elf32-littlearm-vxworks");
29458 #elif defined (TE_NACL)
29459 return (target_big_endian
29460 ? "elf32-bigarm-nacl"
29461 : "elf32-littlearm-nacl");
29465 if (target_big_endian)
29466 return "elf32-bigarm-fdpic";
29468 return "elf32-littlearm-fdpic";
29472 if (target_big_endian)
29473 return "elf32-bigarm";
29475 return "elf32-littlearm";
29481 armelf_frob_symbol (symbolS * symp,
29484 elf_frob_symbol (symp, puntp);
29488 /* MD interface: Finalization. */
29493 literal_pool * pool;
29495 /* Ensure that all the predication blocks are properly closed. */
29496 check_pred_blocks_finished ();
29498 for (pool = list_of_pools; pool; pool = pool->next)
29500 /* Put it at the end of the relevant section. */
29501 subseg_set (pool->section, pool->sub_section);
29503 arm_elf_change_section ();
29510 /* Remove any excess mapping symbols generated for alignment frags in
29511 SEC. We may have created a mapping symbol before a zero byte
29512 alignment; remove it if there's a mapping symbol after the
29515 check_mapping_symbols (bfd *abfd ATTRIBUTE_UNUSED, asection *sec,
29516 void *dummy ATTRIBUTE_UNUSED)
29518 segment_info_type *seginfo = seg_info (sec);
29521 if (seginfo == NULL || seginfo->frchainP == NULL)
29524 for (fragp = seginfo->frchainP->frch_root;
29526 fragp = fragp->fr_next)
29528 symbolS *sym = fragp->tc_frag_data.last_map;
29529 fragS *next = fragp->fr_next;
29531 /* Variable-sized frags have been converted to fixed size by
29532 this point. But if this was variable-sized to start with,
29533 there will be a fixed-size frag after it. So don't handle
29535 if (sym == NULL || next == NULL)
29538 if (S_GET_VALUE (sym) < next->fr_address)
29539 /* Not at the end of this frag. */
29541 know (S_GET_VALUE (sym) == next->fr_address);
29545 if (next->tc_frag_data.first_map != NULL)
29547 /* Next frag starts with a mapping symbol. Discard this
29549 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
29553 if (next->fr_next == NULL)
29555 /* This mapping symbol is at the end of the section. Discard
29557 know (next->fr_fix == 0 && next->fr_var == 0);
29558 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
29562 /* As long as we have empty frags without any mapping symbols,
29564 /* If the next frag is non-empty and does not start with a
29565 mapping symbol, then this mapping symbol is required. */
29566 if (next->fr_address != next->fr_next->fr_address)
29569 next = next->fr_next;
29571 while (next != NULL);
29576 /* Adjust the symbol table. This marks Thumb symbols as distinct from
29580 arm_adjust_symtab (void)
29585 for (sym = symbol_rootP; sym != NULL; sym = symbol_next (sym))
29587 if (ARM_IS_THUMB (sym))
29589 if (THUMB_IS_FUNC (sym))
29591 /* Mark the symbol as a Thumb function. */
29592 if ( S_GET_STORAGE_CLASS (sym) == C_STAT
29593 || S_GET_STORAGE_CLASS (sym) == C_LABEL) /* This can happen! */
29594 S_SET_STORAGE_CLASS (sym, C_THUMBSTATFUNC);
29596 else if (S_GET_STORAGE_CLASS (sym) == C_EXT)
29597 S_SET_STORAGE_CLASS (sym, C_THUMBEXTFUNC);
29599 as_bad (_("%s: unexpected function type: %d"),
29600 S_GET_NAME (sym), S_GET_STORAGE_CLASS (sym));
29602 else switch (S_GET_STORAGE_CLASS (sym))
29605 S_SET_STORAGE_CLASS (sym, C_THUMBEXT);
29608 S_SET_STORAGE_CLASS (sym, C_THUMBSTAT);
29611 S_SET_STORAGE_CLASS (sym, C_THUMBLABEL);
29619 if (ARM_IS_INTERWORK (sym))
29620 coffsymbol (symbol_get_bfdsym (sym))->native->u.syment.n_flags = 0xFF;
29627 for (sym = symbol_rootP; sym != NULL; sym = symbol_next (sym))
29629 if (ARM_IS_THUMB (sym))
29631 elf_symbol_type * elf_sym;
29633 elf_sym = elf_symbol (symbol_get_bfdsym (sym));
29634 bind = ELF_ST_BIND (elf_sym->internal_elf_sym.st_info);
29636 if (! bfd_is_arm_special_symbol_name (elf_sym->symbol.name,
29637 BFD_ARM_SPECIAL_SYM_TYPE_ANY))
29639 /* If it's a .thumb_func, declare it as so,
29640 otherwise tag label as .code 16. */
29641 if (THUMB_IS_FUNC (sym))
29642 ARM_SET_SYM_BRANCH_TYPE (elf_sym->internal_elf_sym.st_target_internal,
29643 ST_BRANCH_TO_THUMB);
29644 else if (EF_ARM_EABI_VERSION (meabi_flags) < EF_ARM_EABI_VER4)
29645 elf_sym->internal_elf_sym.st_info =
29646 ELF_ST_INFO (bind, STT_ARM_16BIT);
29651 /* Remove any overlapping mapping symbols generated by alignment frags. */
29652 bfd_map_over_sections (stdoutput, check_mapping_symbols, (char *) 0);
29653 /* Now do generic ELF adjustments. */
29654 elf_adjust_symtab ();
29658 /* MD interface: Initialization. */
29661 set_constant_flonums (void)
29665 for (i = 0; i < NUM_FLOAT_VALS; i++)
29666 if (atof_ieee ((char *) fp_const[i], 'x', fp_values[i]) == NULL)
29670 /* Auto-select Thumb mode if it's the only available instruction set for the
29671 given architecture. */
29674 autoselect_thumb_from_cpu_variant (void)
29676 if (!ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v1))
29677 opcode_select (16);
29686 if ( (arm_ops_hsh = hash_new ()) == NULL
29687 || (arm_cond_hsh = hash_new ()) == NULL
29688 || (arm_vcond_hsh = hash_new ()) == NULL
29689 || (arm_shift_hsh = hash_new ()) == NULL
29690 || (arm_psr_hsh = hash_new ()) == NULL
29691 || (arm_v7m_psr_hsh = hash_new ()) == NULL
29692 || (arm_reg_hsh = hash_new ()) == NULL
29693 || (arm_reloc_hsh = hash_new ()) == NULL
29694 || (arm_barrier_opt_hsh = hash_new ()) == NULL)
29695 as_fatal (_("virtual memory exhausted"));
29697 for (i = 0; i < sizeof (insns) / sizeof (struct asm_opcode); i++)
29698 hash_insert (arm_ops_hsh, insns[i].template_name, (void *) (insns + i));
29699 for (i = 0; i < sizeof (conds) / sizeof (struct asm_cond); i++)
29700 hash_insert (arm_cond_hsh, conds[i].template_name, (void *) (conds + i));
29701 for (i = 0; i < sizeof (vconds) / sizeof (struct asm_cond); i++)
29702 hash_insert (arm_vcond_hsh, vconds[i].template_name, (void *) (vconds + i));
29703 for (i = 0; i < sizeof (shift_names) / sizeof (struct asm_shift_name); i++)
29704 hash_insert (arm_shift_hsh, shift_names[i].name, (void *) (shift_names + i));
29705 for (i = 0; i < sizeof (psrs) / sizeof (struct asm_psr); i++)
29706 hash_insert (arm_psr_hsh, psrs[i].template_name, (void *) (psrs + i));
29707 for (i = 0; i < sizeof (v7m_psrs) / sizeof (struct asm_psr); i++)
29708 hash_insert (arm_v7m_psr_hsh, v7m_psrs[i].template_name,
29709 (void *) (v7m_psrs + i));
29710 for (i = 0; i < sizeof (reg_names) / sizeof (struct reg_entry); i++)
29711 hash_insert (arm_reg_hsh, reg_names[i].name, (void *) (reg_names + i));
29713 i < sizeof (barrier_opt_names) / sizeof (struct asm_barrier_opt);
29715 hash_insert (arm_barrier_opt_hsh, barrier_opt_names[i].template_name,
29716 (void *) (barrier_opt_names + i));
29718 for (i = 0; i < ARRAY_SIZE (reloc_names); i++)
29720 struct reloc_entry * entry = reloc_names + i;
29722 if (arm_is_eabi() && entry->reloc == BFD_RELOC_ARM_PLT32)
29723 /* This makes encode_branch() use the EABI versions of this relocation. */
29724 entry->reloc = BFD_RELOC_UNUSED;
29726 hash_insert (arm_reloc_hsh, entry->name, (void *) entry);
29730 set_constant_flonums ();
29732 /* Set the cpu variant based on the command-line options. We prefer
29733 -mcpu= over -march= if both are set (as for GCC); and we prefer
29734 -mfpu= over any other way of setting the floating point unit.
29735 Use of legacy options with new options are faulted. */
29738 if (mcpu_cpu_opt || march_cpu_opt)
29739 as_bad (_("use of old and new-style options to set CPU type"));
29741 selected_arch = *legacy_cpu;
29743 else if (mcpu_cpu_opt)
29745 selected_arch = *mcpu_cpu_opt;
29746 selected_ext = *mcpu_ext_opt;
29748 else if (march_cpu_opt)
29750 selected_arch = *march_cpu_opt;
29751 selected_ext = *march_ext_opt;
29753 ARM_MERGE_FEATURE_SETS (selected_cpu, selected_arch, selected_ext);
29758 as_bad (_("use of old and new-style options to set FPU type"));
29760 selected_fpu = *legacy_fpu;
29763 selected_fpu = *mfpu_opt;
29766 #if !(defined (EABI_DEFAULT) || defined (TE_LINUX) \
29767 || defined (TE_NetBSD) || defined (TE_VXWORKS))
29768 /* Some environments specify a default FPU. If they don't, infer it
29769 from the processor. */
29771 selected_fpu = *mcpu_fpu_opt;
29772 else if (march_fpu_opt)
29773 selected_fpu = *march_fpu_opt;
29775 selected_fpu = fpu_default;
29779 if (ARM_FEATURE_ZERO (selected_fpu))
29781 if (!no_cpu_selected ())
29782 selected_fpu = fpu_default;
29784 selected_fpu = fpu_arch_fpa;
29788 if (ARM_FEATURE_ZERO (selected_arch))
29790 selected_arch = cpu_default;
29791 selected_cpu = selected_arch;
29793 ARM_MERGE_FEATURE_SETS (cpu_variant, selected_cpu, selected_fpu);
29795 /* Autodection of feature mode: allow all features in cpu_variant but leave
29796 selected_cpu unset. It will be set in aeabi_set_public_attributes ()
29797 after all instruction have been processed and we can decide what CPU
29798 should be selected. */
29799 if (ARM_FEATURE_ZERO (selected_arch))
29800 ARM_MERGE_FEATURE_SETS (cpu_variant, arm_arch_any, selected_fpu);
29802 ARM_MERGE_FEATURE_SETS (cpu_variant, selected_cpu, selected_fpu);
29805 autoselect_thumb_from_cpu_variant ();
29807 arm_arch_used = thumb_arch_used = arm_arch_none;
29809 #if defined OBJ_COFF || defined OBJ_ELF
29811 unsigned int flags = 0;
29813 #if defined OBJ_ELF
29814 flags = meabi_flags;
29816 switch (meabi_flags)
29818 case EF_ARM_EABI_UNKNOWN:
29820 /* Set the flags in the private structure. */
29821 if (uses_apcs_26) flags |= F_APCS26;
29822 if (support_interwork) flags |= F_INTERWORK;
29823 if (uses_apcs_float) flags |= F_APCS_FLOAT;
29824 if (pic_code) flags |= F_PIC;
29825 if (!ARM_CPU_HAS_FEATURE (cpu_variant, fpu_any_hard))
29826 flags |= F_SOFT_FLOAT;
29828 switch (mfloat_abi_opt)
29830 case ARM_FLOAT_ABI_SOFT:
29831 case ARM_FLOAT_ABI_SOFTFP:
29832 flags |= F_SOFT_FLOAT;
29835 case ARM_FLOAT_ABI_HARD:
29836 if (flags & F_SOFT_FLOAT)
29837 as_bad (_("hard-float conflicts with specified fpu"));
29841 /* Using pure-endian doubles (even if soft-float). */
29842 if (ARM_CPU_HAS_FEATURE (cpu_variant, fpu_endian_pure))
29843 flags |= F_VFP_FLOAT;
29845 #if defined OBJ_ELF
29846 if (ARM_CPU_HAS_FEATURE (cpu_variant, fpu_arch_maverick))
29847 flags |= EF_ARM_MAVERICK_FLOAT;
29850 case EF_ARM_EABI_VER4:
29851 case EF_ARM_EABI_VER5:
29852 /* No additional flags to set. */
29859 bfd_set_private_flags (stdoutput, flags);
29861 /* We have run out flags in the COFF header to encode the
29862 status of ATPCS support, so instead we create a dummy,
29863 empty, debug section called .arm.atpcs. */
29868 sec = bfd_make_section (stdoutput, ".arm.atpcs");
29872 bfd_set_section_flags
29873 (stdoutput, sec, SEC_READONLY | SEC_DEBUGGING /* | SEC_HAS_CONTENTS */);
29874 bfd_set_section_size (stdoutput, sec, 0);
29875 bfd_set_section_contents (stdoutput, sec, NULL, 0, 0);
29881 /* Record the CPU type as well. */
29882 if (ARM_CPU_HAS_FEATURE (cpu_variant, arm_cext_iwmmxt2))
29883 mach = bfd_mach_arm_iWMMXt2;
29884 else if (ARM_CPU_HAS_FEATURE (cpu_variant, arm_cext_iwmmxt))
29885 mach = bfd_mach_arm_iWMMXt;
29886 else if (ARM_CPU_HAS_FEATURE (cpu_variant, arm_cext_xscale))
29887 mach = bfd_mach_arm_XScale;
29888 else if (ARM_CPU_HAS_FEATURE (cpu_variant, arm_cext_maverick))
29889 mach = bfd_mach_arm_ep9312;
29890 else if (ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v5e))
29891 mach = bfd_mach_arm_5TE;
29892 else if (ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v5))
29894 if (ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v4t))
29895 mach = bfd_mach_arm_5T;
29897 mach = bfd_mach_arm_5;
29899 else if (ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v4))
29901 if (ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v4t))
29902 mach = bfd_mach_arm_4T;
29904 mach = bfd_mach_arm_4;
29906 else if (ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v3m))
29907 mach = bfd_mach_arm_3M;
29908 else if (ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v3))
29909 mach = bfd_mach_arm_3;
29910 else if (ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v2s))
29911 mach = bfd_mach_arm_2a;
29912 else if (ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v2))
29913 mach = bfd_mach_arm_2;
29915 mach = bfd_mach_arm_unknown;
29917 bfd_set_arch_mach (stdoutput, TARGET_ARCH, mach);
29920 /* Command line processing. */
29923 Invocation line includes a switch not recognized by the base assembler.
29924 See if it's a processor-specific option.
29926 This routine is somewhat complicated by the need for backwards
29927 compatibility (since older releases of gcc can't be changed).
29928 The new options try to make the interface as compatible as
29931 New options (supported) are:
29933 -mcpu=<cpu name> Assemble for selected processor
29934 -march=<architecture name> Assemble for selected architecture
29935 -mfpu=<fpu architecture> Assemble for selected FPU.
29936 -EB/-mbig-endian Big-endian
29937 -EL/-mlittle-endian Little-endian
29938 -k Generate PIC code
29939 -mthumb Start in Thumb mode
29940 -mthumb-interwork Code supports ARM/Thumb interworking
29942 -m[no-]warn-deprecated Warn about deprecated features
29943 -m[no-]warn-syms Warn when symbols match instructions
29945 For now we will also provide support for:
29947 -mapcs-32 32-bit Program counter
29948 -mapcs-26 26-bit Program counter
29949 -macps-float Floats passed in FP registers
29950 -mapcs-reentrant Reentrant code
29952 (sometime these will probably be replaced with -mapcs=<list of options>
29953 and -matpcs=<list of options>)
29955 The remaining options are only supported for back-wards compatibility.
29956 Cpu variants, the arm part is optional:
29957 -m[arm]1 Currently not supported.
29958 -m[arm]2, -m[arm]250 Arm 2 and Arm 250 processor
29959 -m[arm]3 Arm 3 processor
29960 -m[arm]6[xx], Arm 6 processors
29961 -m[arm]7[xx][t][[d]m] Arm 7 processors
29962 -m[arm]8[10] Arm 8 processors
29963 -m[arm]9[20][tdmi] Arm 9 processors
29964 -mstrongarm[110[0]] StrongARM processors
29965 -mxscale XScale processors
29966 -m[arm]v[2345[t[e]]] Arm architectures
29967 -mall All (except the ARM1)
29969 -mfpa10, -mfpa11 FPA10 and 11 co-processor instructions
29970 -mfpe-old (No float load/store multiples)
29971 -mvfpxd VFP Single precision
29973 -mno-fpu Disable all floating point instructions
29975 The following CPU names are recognized:
29976 arm1, arm2, arm250, arm3, arm6, arm600, arm610, arm620,
29977 arm7, arm7m, arm7d, arm7dm, arm7di, arm7dmi, arm70, arm700,
29978 arm700i, arm710 arm710t, arm720, arm720t, arm740t, arm710c,
29979 arm7100, arm7500, arm7500fe, arm7tdmi, arm8, arm810, arm9,
29980 arm920, arm920t, arm940t, arm946, arm966, arm9tdmi, arm9e,
29981 arm10t arm10e, arm1020t, arm1020e, arm10200e,
29982 strongarm, strongarm110, strongarm1100, strongarm1110, xscale.
29986 const char * md_shortopts = "m:k";
29988 #ifdef ARM_BI_ENDIAN
29989 #define OPTION_EB (OPTION_MD_BASE + 0)
29990 #define OPTION_EL (OPTION_MD_BASE + 1)
29992 #if TARGET_BYTES_BIG_ENDIAN
29993 #define OPTION_EB (OPTION_MD_BASE + 0)
29995 #define OPTION_EL (OPTION_MD_BASE + 1)
29998 #define OPTION_FIX_V4BX (OPTION_MD_BASE + 2)
29999 #define OPTION_FDPIC (OPTION_MD_BASE + 3)
30001 struct option md_longopts[] =
30004 {"EB", no_argument, NULL, OPTION_EB},
30007 {"EL", no_argument, NULL, OPTION_EL},
30009 {"fix-v4bx", no_argument, NULL, OPTION_FIX_V4BX},
30011 {"fdpic", no_argument, NULL, OPTION_FDPIC},
30013 {NULL, no_argument, NULL, 0}
30016 size_t md_longopts_size = sizeof (md_longopts);
30018 struct arm_option_table
30020 const char * option; /* Option name to match. */
30021 const char * help; /* Help information. */
30022 int * var; /* Variable to change. */
30023 int value; /* What to change it to. */
30024 const char * deprecated; /* If non-null, print this message. */
30027 struct arm_option_table arm_opts[] =
30029 {"k", N_("generate PIC code"), &pic_code, 1, NULL},
30030 {"mthumb", N_("assemble Thumb code"), &thumb_mode, 1, NULL},
30031 {"mthumb-interwork", N_("support ARM/Thumb interworking"),
30032 &support_interwork, 1, NULL},
30033 {"mapcs-32", N_("code uses 32-bit program counter"), &uses_apcs_26, 0, NULL},
30034 {"mapcs-26", N_("code uses 26-bit program counter"), &uses_apcs_26, 1, NULL},
30035 {"mapcs-float", N_("floating point args are in fp regs"), &uses_apcs_float,
30037 {"mapcs-reentrant", N_("re-entrant code"), &pic_code, 1, NULL},
30038 {"matpcs", N_("code is ATPCS conformant"), &atpcs, 1, NULL},
30039 {"mbig-endian", N_("assemble for big-endian"), &target_big_endian, 1, NULL},
30040 {"mlittle-endian", N_("assemble for little-endian"), &target_big_endian, 0,
30043 /* These are recognized by the assembler, but have no affect on code. */
30044 {"mapcs-frame", N_("use frame pointer"), NULL, 0, NULL},
30045 {"mapcs-stack-check", N_("use stack size checking"), NULL, 0, NULL},
30047 {"mwarn-deprecated", NULL, &warn_on_deprecated, 1, NULL},
30048 {"mno-warn-deprecated", N_("do not warn on use of deprecated feature"),
30049 &warn_on_deprecated, 0, NULL},
30050 {"mwarn-syms", N_("warn about symbols that match instruction names [default]"), (int *) (& flag_warn_syms), TRUE, NULL},
30051 {"mno-warn-syms", N_("disable warnings about symobls that match instructions"), (int *) (& flag_warn_syms), FALSE, NULL},
30052 {NULL, NULL, NULL, 0, NULL}
30055 struct arm_legacy_option_table
30057 const char * option; /* Option name to match. */
30058 const arm_feature_set ** var; /* Variable to change. */
30059 const arm_feature_set value; /* What to change it to. */
30060 const char * deprecated; /* If non-null, print this message. */
30063 const struct arm_legacy_option_table arm_legacy_opts[] =
30065 /* DON'T add any new processors to this list -- we want the whole list
30066 to go away... Add them to the processors table instead. */
30067 {"marm1", &legacy_cpu, ARM_ARCH_V1, N_("use -mcpu=arm1")},
30068 {"m1", &legacy_cpu, ARM_ARCH_V1, N_("use -mcpu=arm1")},
30069 {"marm2", &legacy_cpu, ARM_ARCH_V2, N_("use -mcpu=arm2")},
30070 {"m2", &legacy_cpu, ARM_ARCH_V2, N_("use -mcpu=arm2")},
30071 {"marm250", &legacy_cpu, ARM_ARCH_V2S, N_("use -mcpu=arm250")},
30072 {"m250", &legacy_cpu, ARM_ARCH_V2S, N_("use -mcpu=arm250")},
30073 {"marm3", &legacy_cpu, ARM_ARCH_V2S, N_("use -mcpu=arm3")},
30074 {"m3", &legacy_cpu, ARM_ARCH_V2S, N_("use -mcpu=arm3")},
30075 {"marm6", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm6")},
30076 {"m6", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm6")},
30077 {"marm600", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm600")},
30078 {"m600", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm600")},
30079 {"marm610", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm610")},
30080 {"m610", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm610")},
30081 {"marm620", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm620")},
30082 {"m620", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm620")},
30083 {"marm7", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7")},
30084 {"m7", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7")},
30085 {"marm70", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm70")},
30086 {"m70", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm70")},
30087 {"marm700", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm700")},
30088 {"m700", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm700")},
30089 {"marm700i", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm700i")},
30090 {"m700i", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm700i")},
30091 {"marm710", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm710")},
30092 {"m710", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm710")},
30093 {"marm710c", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm710c")},
30094 {"m710c", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm710c")},
30095 {"marm720", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm720")},
30096 {"m720", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm720")},
30097 {"marm7d", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7d")},
30098 {"m7d", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7d")},
30099 {"marm7di", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7di")},
30100 {"m7di", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7di")},
30101 {"marm7m", &legacy_cpu, ARM_ARCH_V3M, N_("use -mcpu=arm7m")},
30102 {"m7m", &legacy_cpu, ARM_ARCH_V3M, N_("use -mcpu=arm7m")},
30103 {"marm7dm", &legacy_cpu, ARM_ARCH_V3M, N_("use -mcpu=arm7dm")},
30104 {"m7dm", &legacy_cpu, ARM_ARCH_V3M, N_("use -mcpu=arm7dm")},
30105 {"marm7dmi", &legacy_cpu, ARM_ARCH_V3M, N_("use -mcpu=arm7dmi")},
30106 {"m7dmi", &legacy_cpu, ARM_ARCH_V3M, N_("use -mcpu=arm7dmi")},
30107 {"marm7100", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7100")},
30108 {"m7100", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7100")},
30109 {"marm7500", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7500")},
30110 {"m7500", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7500")},
30111 {"marm7500fe", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7500fe")},
30112 {"m7500fe", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7500fe")},
30113 {"marm7t", &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm7tdmi")},
30114 {"m7t", &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm7tdmi")},
30115 {"marm7tdmi", &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm7tdmi")},
30116 {"m7tdmi", &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm7tdmi")},
30117 {"marm710t", &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm710t")},
30118 {"m710t", &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm710t")},
30119 {"marm720t", &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm720t")},
30120 {"m720t", &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm720t")},
30121 {"marm740t", &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm740t")},
30122 {"m740t", &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm740t")},
30123 {"marm8", &legacy_cpu, ARM_ARCH_V4, N_("use -mcpu=arm8")},
30124 {"m8", &legacy_cpu, ARM_ARCH_V4, N_("use -mcpu=arm8")},
30125 {"marm810", &legacy_cpu, ARM_ARCH_V4, N_("use -mcpu=arm810")},
30126 {"m810", &legacy_cpu, ARM_ARCH_V4, N_("use -mcpu=arm810")},
30127 {"marm9", &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm9")},
30128 {"m9", &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm9")},
30129 {"marm9tdmi", &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm9tdmi")},
30130 {"m9tdmi", &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm9tdmi")},
30131 {"marm920", &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm920")},
30132 {"m920", &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm920")},
30133 {"marm940", &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm940")},
30134 {"m940", &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm940")},
30135 {"mstrongarm", &legacy_cpu, ARM_ARCH_V4, N_("use -mcpu=strongarm")},
30136 {"mstrongarm110", &legacy_cpu, ARM_ARCH_V4,
30137 N_("use -mcpu=strongarm110")},
30138 {"mstrongarm1100", &legacy_cpu, ARM_ARCH_V4,
30139 N_("use -mcpu=strongarm1100")},
30140 {"mstrongarm1110", &legacy_cpu, ARM_ARCH_V4,
30141 N_("use -mcpu=strongarm1110")},
30142 {"mxscale", &legacy_cpu, ARM_ARCH_XSCALE, N_("use -mcpu=xscale")},
30143 {"miwmmxt", &legacy_cpu, ARM_ARCH_IWMMXT, N_("use -mcpu=iwmmxt")},
30144 {"mall", &legacy_cpu, ARM_ANY, N_("use -mcpu=all")},
30146 /* Architecture variants -- don't add any more to this list either. */
30147 {"mv2", &legacy_cpu, ARM_ARCH_V2, N_("use -march=armv2")},
30148 {"marmv2", &legacy_cpu, ARM_ARCH_V2, N_("use -march=armv2")},
30149 {"mv2a", &legacy_cpu, ARM_ARCH_V2S, N_("use -march=armv2a")},
30150 {"marmv2a", &legacy_cpu, ARM_ARCH_V2S, N_("use -march=armv2a")},
30151 {"mv3", &legacy_cpu, ARM_ARCH_V3, N_("use -march=armv3")},
30152 {"marmv3", &legacy_cpu, ARM_ARCH_V3, N_("use -march=armv3")},
30153 {"mv3m", &legacy_cpu, ARM_ARCH_V3M, N_("use -march=armv3m")},
30154 {"marmv3m", &legacy_cpu, ARM_ARCH_V3M, N_("use -march=armv3m")},
30155 {"mv4", &legacy_cpu, ARM_ARCH_V4, N_("use -march=armv4")},
30156 {"marmv4", &legacy_cpu, ARM_ARCH_V4, N_("use -march=armv4")},
30157 {"mv4t", &legacy_cpu, ARM_ARCH_V4T, N_("use -march=armv4t")},
30158 {"marmv4t", &legacy_cpu, ARM_ARCH_V4T, N_("use -march=armv4t")},
30159 {"mv5", &legacy_cpu, ARM_ARCH_V5, N_("use -march=armv5")},
30160 {"marmv5", &legacy_cpu, ARM_ARCH_V5, N_("use -march=armv5")},
30161 {"mv5t", &legacy_cpu, ARM_ARCH_V5T, N_("use -march=armv5t")},
30162 {"marmv5t", &legacy_cpu, ARM_ARCH_V5T, N_("use -march=armv5t")},
30163 {"mv5e", &legacy_cpu, ARM_ARCH_V5TE, N_("use -march=armv5te")},
30164 {"marmv5e", &legacy_cpu, ARM_ARCH_V5TE, N_("use -march=armv5te")},
30166 /* Floating point variants -- don't add any more to this list either. */
30167 {"mfpe-old", &legacy_fpu, FPU_ARCH_FPE, N_("use -mfpu=fpe")},
30168 {"mfpa10", &legacy_fpu, FPU_ARCH_FPA, N_("use -mfpu=fpa10")},
30169 {"mfpa11", &legacy_fpu, FPU_ARCH_FPA, N_("use -mfpu=fpa11")},
30170 {"mno-fpu", &legacy_fpu, ARM_ARCH_NONE,
30171 N_("use either -mfpu=softfpa or -mfpu=softvfp")},
30173 {NULL, NULL, ARM_ARCH_NONE, NULL}
30176 struct arm_cpu_option_table
30180 const arm_feature_set value;
30181 const arm_feature_set ext;
30182 /* For some CPUs we assume an FPU unless the user explicitly sets
30184 const arm_feature_set default_fpu;
30185 /* The canonical name of the CPU, or NULL to use NAME converted to upper
30187 const char * canonical_name;
30190 /* This list should, at a minimum, contain all the cpu names
30191 recognized by GCC. */
30192 #define ARM_CPU_OPT(N, CN, V, E, DF) { N, sizeof (N) - 1, V, E, DF, CN }
30194 static const struct arm_cpu_option_table arm_cpus[] =
30196 ARM_CPU_OPT ("all", NULL, ARM_ANY,
30199 ARM_CPU_OPT ("arm1", NULL, ARM_ARCH_V1,
30202 ARM_CPU_OPT ("arm2", NULL, ARM_ARCH_V2,
30205 ARM_CPU_OPT ("arm250", NULL, ARM_ARCH_V2S,
30208 ARM_CPU_OPT ("arm3", NULL, ARM_ARCH_V2S,
30211 ARM_CPU_OPT ("arm6", NULL, ARM_ARCH_V3,
30214 ARM_CPU_OPT ("arm60", NULL, ARM_ARCH_V3,
30217 ARM_CPU_OPT ("arm600", NULL, ARM_ARCH_V3,
30220 ARM_CPU_OPT ("arm610", NULL, ARM_ARCH_V3,
30223 ARM_CPU_OPT ("arm620", NULL, ARM_ARCH_V3,
30226 ARM_CPU_OPT ("arm7", NULL, ARM_ARCH_V3,
30229 ARM_CPU_OPT ("arm7m", NULL, ARM_ARCH_V3M,
30232 ARM_CPU_OPT ("arm7d", NULL, ARM_ARCH_V3,
30235 ARM_CPU_OPT ("arm7dm", NULL, ARM_ARCH_V3M,
30238 ARM_CPU_OPT ("arm7di", NULL, ARM_ARCH_V3,
30241 ARM_CPU_OPT ("arm7dmi", NULL, ARM_ARCH_V3M,
30244 ARM_CPU_OPT ("arm70", NULL, ARM_ARCH_V3,
30247 ARM_CPU_OPT ("arm700", NULL, ARM_ARCH_V3,
30250 ARM_CPU_OPT ("arm700i", NULL, ARM_ARCH_V3,
30253 ARM_CPU_OPT ("arm710", NULL, ARM_ARCH_V3,
30256 ARM_CPU_OPT ("arm710t", NULL, ARM_ARCH_V4T,
30259 ARM_CPU_OPT ("arm720", NULL, ARM_ARCH_V3,
30262 ARM_CPU_OPT ("arm720t", NULL, ARM_ARCH_V4T,
30265 ARM_CPU_OPT ("arm740t", NULL, ARM_ARCH_V4T,
30268 ARM_CPU_OPT ("arm710c", NULL, ARM_ARCH_V3,
30271 ARM_CPU_OPT ("arm7100", NULL, ARM_ARCH_V3,
30274 ARM_CPU_OPT ("arm7500", NULL, ARM_ARCH_V3,
30277 ARM_CPU_OPT ("arm7500fe", NULL, ARM_ARCH_V3,
30280 ARM_CPU_OPT ("arm7t", NULL, ARM_ARCH_V4T,
30283 ARM_CPU_OPT ("arm7tdmi", NULL, ARM_ARCH_V4T,
30286 ARM_CPU_OPT ("arm7tdmi-s", NULL, ARM_ARCH_V4T,
30289 ARM_CPU_OPT ("arm8", NULL, ARM_ARCH_V4,
30292 ARM_CPU_OPT ("arm810", NULL, ARM_ARCH_V4,
30295 ARM_CPU_OPT ("strongarm", NULL, ARM_ARCH_V4,
30298 ARM_CPU_OPT ("strongarm1", NULL, ARM_ARCH_V4,
30301 ARM_CPU_OPT ("strongarm110", NULL, ARM_ARCH_V4,
30304 ARM_CPU_OPT ("strongarm1100", NULL, ARM_ARCH_V4,
30307 ARM_CPU_OPT ("strongarm1110", NULL, ARM_ARCH_V4,
30310 ARM_CPU_OPT ("arm9", NULL, ARM_ARCH_V4T,
30313 ARM_CPU_OPT ("arm920", "ARM920T", ARM_ARCH_V4T,
30316 ARM_CPU_OPT ("arm920t", NULL, ARM_ARCH_V4T,
30319 ARM_CPU_OPT ("arm922t", NULL, ARM_ARCH_V4T,
30322 ARM_CPU_OPT ("arm940t", NULL, ARM_ARCH_V4T,
30325 ARM_CPU_OPT ("arm9tdmi", NULL, ARM_ARCH_V4T,
30328 ARM_CPU_OPT ("fa526", NULL, ARM_ARCH_V4,
30331 ARM_CPU_OPT ("fa626", NULL, ARM_ARCH_V4,
30335 /* For V5 or later processors we default to using VFP; but the user
30336 should really set the FPU type explicitly. */
30337 ARM_CPU_OPT ("arm9e-r0", NULL, ARM_ARCH_V5TExP,
30340 ARM_CPU_OPT ("arm9e", NULL, ARM_ARCH_V5TE,
30343 ARM_CPU_OPT ("arm926ej", "ARM926EJ-S", ARM_ARCH_V5TEJ,
30346 ARM_CPU_OPT ("arm926ejs", "ARM926EJ-S", ARM_ARCH_V5TEJ,
30349 ARM_CPU_OPT ("arm926ej-s", NULL, ARM_ARCH_V5TEJ,
30352 ARM_CPU_OPT ("arm946e-r0", NULL, ARM_ARCH_V5TExP,
30355 ARM_CPU_OPT ("arm946e", "ARM946E-S", ARM_ARCH_V5TE,
30358 ARM_CPU_OPT ("arm946e-s", NULL, ARM_ARCH_V5TE,
30361 ARM_CPU_OPT ("arm966e-r0", NULL, ARM_ARCH_V5TExP,
30364 ARM_CPU_OPT ("arm966e", "ARM966E-S", ARM_ARCH_V5TE,
30367 ARM_CPU_OPT ("arm966e-s", NULL, ARM_ARCH_V5TE,
30370 ARM_CPU_OPT ("arm968e-s", NULL, ARM_ARCH_V5TE,
30373 ARM_CPU_OPT ("arm10t", NULL, ARM_ARCH_V5T,
30376 ARM_CPU_OPT ("arm10tdmi", NULL, ARM_ARCH_V5T,
30379 ARM_CPU_OPT ("arm10e", NULL, ARM_ARCH_V5TE,
30382 ARM_CPU_OPT ("arm1020", "ARM1020E", ARM_ARCH_V5TE,
30385 ARM_CPU_OPT ("arm1020t", NULL, ARM_ARCH_V5T,
30388 ARM_CPU_OPT ("arm1020e", NULL, ARM_ARCH_V5TE,
30391 ARM_CPU_OPT ("arm1022e", NULL, ARM_ARCH_V5TE,
30394 ARM_CPU_OPT ("arm1026ejs", "ARM1026EJ-S", ARM_ARCH_V5TEJ,
30397 ARM_CPU_OPT ("arm1026ej-s", NULL, ARM_ARCH_V5TEJ,
30400 ARM_CPU_OPT ("fa606te", NULL, ARM_ARCH_V5TE,
30403 ARM_CPU_OPT ("fa616te", NULL, ARM_ARCH_V5TE,
30406 ARM_CPU_OPT ("fa626te", NULL, ARM_ARCH_V5TE,
30409 ARM_CPU_OPT ("fmp626", NULL, ARM_ARCH_V5TE,
30412 ARM_CPU_OPT ("fa726te", NULL, ARM_ARCH_V5TE,
30415 ARM_CPU_OPT ("arm1136js", "ARM1136J-S", ARM_ARCH_V6,
30418 ARM_CPU_OPT ("arm1136j-s", NULL, ARM_ARCH_V6,
30421 ARM_CPU_OPT ("arm1136jfs", "ARM1136JF-S", ARM_ARCH_V6,
30424 ARM_CPU_OPT ("arm1136jf-s", NULL, ARM_ARCH_V6,
30427 ARM_CPU_OPT ("mpcore", "MPCore", ARM_ARCH_V6K,
30430 ARM_CPU_OPT ("mpcorenovfp", "MPCore", ARM_ARCH_V6K,
30433 ARM_CPU_OPT ("arm1156t2-s", NULL, ARM_ARCH_V6T2,
30436 ARM_CPU_OPT ("arm1156t2f-s", NULL, ARM_ARCH_V6T2,
30439 ARM_CPU_OPT ("arm1176jz-s", NULL, ARM_ARCH_V6KZ,
30442 ARM_CPU_OPT ("arm1176jzf-s", NULL, ARM_ARCH_V6KZ,
30445 ARM_CPU_OPT ("cortex-a5", "Cortex-A5", ARM_ARCH_V7A,
30446 ARM_FEATURE_CORE_LOW (ARM_EXT_MP | ARM_EXT_SEC),
30448 ARM_CPU_OPT ("cortex-a7", "Cortex-A7", ARM_ARCH_V7VE,
30450 FPU_ARCH_NEON_VFP_V4),
30451 ARM_CPU_OPT ("cortex-a8", "Cortex-A8", ARM_ARCH_V7A,
30452 ARM_FEATURE_CORE_LOW (ARM_EXT_SEC),
30453 ARM_FEATURE_COPROC (FPU_VFP_V3 | FPU_NEON_EXT_V1)),
30454 ARM_CPU_OPT ("cortex-a9", "Cortex-A9", ARM_ARCH_V7A,
30455 ARM_FEATURE_CORE_LOW (ARM_EXT_MP | ARM_EXT_SEC),
30456 ARM_FEATURE_COPROC (FPU_VFP_V3 | FPU_NEON_EXT_V1)),
30457 ARM_CPU_OPT ("cortex-a12", "Cortex-A12", ARM_ARCH_V7VE,
30459 FPU_ARCH_NEON_VFP_V4),
30460 ARM_CPU_OPT ("cortex-a15", "Cortex-A15", ARM_ARCH_V7VE,
30462 FPU_ARCH_NEON_VFP_V4),
30463 ARM_CPU_OPT ("cortex-a17", "Cortex-A17", ARM_ARCH_V7VE,
30465 FPU_ARCH_NEON_VFP_V4),
30466 ARM_CPU_OPT ("cortex-a32", "Cortex-A32", ARM_ARCH_V8A,
30467 ARM_FEATURE_COPROC (CRC_EXT_ARMV8),
30468 FPU_ARCH_CRYPTO_NEON_VFP_ARMV8),
30469 ARM_CPU_OPT ("cortex-a35", "Cortex-A35", ARM_ARCH_V8A,
30470 ARM_FEATURE_COPROC (CRC_EXT_ARMV8),
30471 FPU_ARCH_CRYPTO_NEON_VFP_ARMV8),
30472 ARM_CPU_OPT ("cortex-a53", "Cortex-A53", ARM_ARCH_V8A,
30473 ARM_FEATURE_COPROC (CRC_EXT_ARMV8),
30474 FPU_ARCH_CRYPTO_NEON_VFP_ARMV8),
30475 ARM_CPU_OPT ("cortex-a55", "Cortex-A55", ARM_ARCH_V8_2A,
30476 ARM_FEATURE_CORE_HIGH (ARM_EXT2_FP16_INST),
30477 FPU_ARCH_CRYPTO_NEON_VFP_ARMV8_DOTPROD),
30478 ARM_CPU_OPT ("cortex-a57", "Cortex-A57", ARM_ARCH_V8A,
30479 ARM_FEATURE_COPROC (CRC_EXT_ARMV8),
30480 FPU_ARCH_CRYPTO_NEON_VFP_ARMV8),
30481 ARM_CPU_OPT ("cortex-a72", "Cortex-A72", ARM_ARCH_V8A,
30482 ARM_FEATURE_COPROC (CRC_EXT_ARMV8),
30483 FPU_ARCH_CRYPTO_NEON_VFP_ARMV8),
30484 ARM_CPU_OPT ("cortex-a73", "Cortex-A73", ARM_ARCH_V8A,
30485 ARM_FEATURE_COPROC (CRC_EXT_ARMV8),
30486 FPU_ARCH_CRYPTO_NEON_VFP_ARMV8),
30487 ARM_CPU_OPT ("cortex-a75", "Cortex-A75", ARM_ARCH_V8_2A,
30488 ARM_FEATURE_CORE_HIGH (ARM_EXT2_FP16_INST),
30489 FPU_ARCH_CRYPTO_NEON_VFP_ARMV8_DOTPROD),
30490 ARM_CPU_OPT ("cortex-a76", "Cortex-A76", ARM_ARCH_V8_2A,
30491 ARM_FEATURE_CORE_HIGH (ARM_EXT2_FP16_INST),
30492 FPU_ARCH_CRYPTO_NEON_VFP_ARMV8_DOTPROD),
30493 ARM_CPU_OPT ("ares", "Ares", ARM_ARCH_V8_2A,
30494 ARM_FEATURE_CORE_HIGH (ARM_EXT2_FP16_INST),
30495 FPU_ARCH_CRYPTO_NEON_VFP_ARMV8_DOTPROD),
30496 ARM_CPU_OPT ("cortex-r4", "Cortex-R4", ARM_ARCH_V7R,
30499 ARM_CPU_OPT ("cortex-r4f", "Cortex-R4F", ARM_ARCH_V7R,
30501 FPU_ARCH_VFP_V3D16),
30502 ARM_CPU_OPT ("cortex-r5", "Cortex-R5", ARM_ARCH_V7R,
30503 ARM_FEATURE_CORE_LOW (ARM_EXT_ADIV),
30505 ARM_CPU_OPT ("cortex-r7", "Cortex-R7", ARM_ARCH_V7R,
30506 ARM_FEATURE_CORE_LOW (ARM_EXT_ADIV),
30507 FPU_ARCH_VFP_V3D16),
30508 ARM_CPU_OPT ("cortex-r8", "Cortex-R8", ARM_ARCH_V7R,
30509 ARM_FEATURE_CORE_LOW (ARM_EXT_ADIV),
30510 FPU_ARCH_VFP_V3D16),
30511 ARM_CPU_OPT ("cortex-r52", "Cortex-R52", ARM_ARCH_V8R,
30512 ARM_FEATURE_COPROC (CRC_EXT_ARMV8),
30513 FPU_ARCH_NEON_VFP_ARMV8),
30514 ARM_CPU_OPT ("cortex-m33", "Cortex-M33", ARM_ARCH_V8M_MAIN,
30515 ARM_FEATURE_CORE_LOW (ARM_EXT_V5ExP | ARM_EXT_V6_DSP),
30517 ARM_CPU_OPT ("cortex-m23", "Cortex-M23", ARM_ARCH_V8M_BASE,
30520 ARM_CPU_OPT ("cortex-m7", "Cortex-M7", ARM_ARCH_V7EM,
30523 ARM_CPU_OPT ("cortex-m4", "Cortex-M4", ARM_ARCH_V7EM,
30526 ARM_CPU_OPT ("cortex-m3", "Cortex-M3", ARM_ARCH_V7M,
30529 ARM_CPU_OPT ("cortex-m1", "Cortex-M1", ARM_ARCH_V6SM,
30532 ARM_CPU_OPT ("cortex-m0", "Cortex-M0", ARM_ARCH_V6SM,
30535 ARM_CPU_OPT ("cortex-m0plus", "Cortex-M0+", ARM_ARCH_V6SM,
30538 ARM_CPU_OPT ("exynos-m1", "Samsung Exynos M1", ARM_ARCH_V8A,
30539 ARM_FEATURE_COPROC (CRC_EXT_ARMV8),
30540 FPU_ARCH_CRYPTO_NEON_VFP_ARMV8),
30541 ARM_CPU_OPT ("neoverse-n1", "Neoverse N1", ARM_ARCH_V8_2A,
30542 ARM_FEATURE_CORE_HIGH (ARM_EXT2_FP16_INST),
30543 FPU_ARCH_CRYPTO_NEON_VFP_ARMV8_DOTPROD),
30544 /* ??? XSCALE is really an architecture. */
30545 ARM_CPU_OPT ("xscale", NULL, ARM_ARCH_XSCALE,
30549 /* ??? iwmmxt is not a processor. */
30550 ARM_CPU_OPT ("iwmmxt", NULL, ARM_ARCH_IWMMXT,
30553 ARM_CPU_OPT ("iwmmxt2", NULL, ARM_ARCH_IWMMXT2,
30556 ARM_CPU_OPT ("i80200", NULL, ARM_ARCH_XSCALE,
30561 ARM_CPU_OPT ("ep9312", "ARM920T",
30562 ARM_FEATURE_LOW (ARM_AEXT_V4T, ARM_CEXT_MAVERICK),
30563 ARM_ARCH_NONE, FPU_ARCH_MAVERICK),
30565 /* Marvell processors. */
30566 ARM_CPU_OPT ("marvell-pj4", NULL, ARM_ARCH_V7A,
30567 ARM_FEATURE_CORE_LOW (ARM_EXT_MP | ARM_EXT_SEC),
30568 FPU_ARCH_VFP_V3D16),
30569 ARM_CPU_OPT ("marvell-whitney", NULL, ARM_ARCH_V7A,
30570 ARM_FEATURE_CORE_LOW (ARM_EXT_MP | ARM_EXT_SEC),
30571 FPU_ARCH_NEON_VFP_V4),
30573 /* APM X-Gene family. */
30574 ARM_CPU_OPT ("xgene1", "APM X-Gene 1", ARM_ARCH_V8A,
30576 FPU_ARCH_CRYPTO_NEON_VFP_ARMV8),
30577 ARM_CPU_OPT ("xgene2", "APM X-Gene 2", ARM_ARCH_V8A,
30578 ARM_FEATURE_COPROC (CRC_EXT_ARMV8),
30579 FPU_ARCH_CRYPTO_NEON_VFP_ARMV8),
30581 { NULL, 0, ARM_ARCH_NONE, ARM_ARCH_NONE, ARM_ARCH_NONE, NULL }
30585 struct arm_ext_table
30589 const arm_feature_set merge;
30590 const arm_feature_set clear;
30593 struct arm_arch_option_table
30597 const arm_feature_set value;
30598 const arm_feature_set default_fpu;
30599 const struct arm_ext_table * ext_table;
30602 /* Used to add support for +E and +noE extension. */
30603 #define ARM_EXT(E, M, C) { E, sizeof (E) - 1, M, C }
30604 /* Used to add support for a +E extension. */
30605 #define ARM_ADD(E, M) { E, sizeof(E) - 1, M, ARM_ARCH_NONE }
30606 /* Used to add support for a +noE extension. */
30607 #define ARM_REMOVE(E, C) { E, sizeof(E) -1, ARM_ARCH_NONE, C }
30609 #define ALL_FP ARM_FEATURE (0, ARM_EXT2_FP16_INST | ARM_EXT2_FP16_FML, \
30610 ~0 & ~FPU_ENDIAN_PURE)
30612 static const struct arm_ext_table armv5te_ext_table[] =
30614 ARM_EXT ("fp", FPU_ARCH_VFP_V2, ALL_FP),
30615 { NULL, 0, ARM_ARCH_NONE, ARM_ARCH_NONE }
30618 static const struct arm_ext_table armv7_ext_table[] =
30620 ARM_EXT ("fp", FPU_ARCH_VFP_V3D16, ALL_FP),
30621 { NULL, 0, ARM_ARCH_NONE, ARM_ARCH_NONE }
30624 static const struct arm_ext_table armv7ve_ext_table[] =
30626 ARM_EXT ("fp", FPU_ARCH_VFP_V4D16, ALL_FP),
30627 ARM_ADD ("vfpv3-d16", FPU_ARCH_VFP_V3D16),
30628 ARM_ADD ("vfpv3", FPU_ARCH_VFP_V3),
30629 ARM_ADD ("vfpv3-d16-fp16", FPU_ARCH_VFP_V3D16_FP16),
30630 ARM_ADD ("vfpv3-fp16", FPU_ARCH_VFP_V3_FP16),
30631 ARM_ADD ("vfpv4-d16", FPU_ARCH_VFP_V4D16), /* Alias for +fp. */
30632 ARM_ADD ("vfpv4", FPU_ARCH_VFP_V4),
30634 ARM_EXT ("simd", FPU_ARCH_NEON_VFP_V4,
30635 ARM_FEATURE_COPROC (FPU_NEON_EXT_V1 | FPU_NEON_EXT_FMA)),
30637 /* Aliases for +simd. */
30638 ARM_ADD ("neon-vfpv4", FPU_ARCH_NEON_VFP_V4),
30640 ARM_ADD ("neon", FPU_ARCH_VFP_V3_PLUS_NEON_V1),
30641 ARM_ADD ("neon-vfpv3", FPU_ARCH_VFP_V3_PLUS_NEON_V1),
30642 ARM_ADD ("neon-fp16", FPU_ARCH_NEON_FP16),
30644 { NULL, 0, ARM_ARCH_NONE, ARM_ARCH_NONE }
30647 static const struct arm_ext_table armv7a_ext_table[] =
30649 ARM_EXT ("fp", FPU_ARCH_VFP_V3D16, ALL_FP),
30650 ARM_ADD ("vfpv3-d16", FPU_ARCH_VFP_V3D16), /* Alias for +fp. */
30651 ARM_ADD ("vfpv3", FPU_ARCH_VFP_V3),
30652 ARM_ADD ("vfpv3-d16-fp16", FPU_ARCH_VFP_V3D16_FP16),
30653 ARM_ADD ("vfpv3-fp16", FPU_ARCH_VFP_V3_FP16),
30654 ARM_ADD ("vfpv4-d16", FPU_ARCH_VFP_V4D16),
30655 ARM_ADD ("vfpv4", FPU_ARCH_VFP_V4),
30657 ARM_EXT ("simd", FPU_ARCH_VFP_V3_PLUS_NEON_V1,
30658 ARM_FEATURE_COPROC (FPU_NEON_EXT_V1 | FPU_NEON_EXT_FMA)),
30660 /* Aliases for +simd. */
30661 ARM_ADD ("neon", FPU_ARCH_VFP_V3_PLUS_NEON_V1),
30662 ARM_ADD ("neon-vfpv3", FPU_ARCH_VFP_V3_PLUS_NEON_V1),
30664 ARM_ADD ("neon-fp16", FPU_ARCH_NEON_FP16),
30665 ARM_ADD ("neon-vfpv4", FPU_ARCH_NEON_VFP_V4),
30667 ARM_ADD ("mp", ARM_FEATURE_CORE_LOW (ARM_EXT_MP)),
30668 ARM_ADD ("sec", ARM_FEATURE_CORE_LOW (ARM_EXT_SEC)),
30669 { NULL, 0, ARM_ARCH_NONE, ARM_ARCH_NONE }
30672 static const struct arm_ext_table armv7r_ext_table[] =
30674 ARM_ADD ("fp.sp", FPU_ARCH_VFP_V3xD),
30675 ARM_ADD ("vfpv3xd", FPU_ARCH_VFP_V3xD), /* Alias for +fp.sp. */
30676 ARM_EXT ("fp", FPU_ARCH_VFP_V3D16, ALL_FP),
30677 ARM_ADD ("vfpv3-d16", FPU_ARCH_VFP_V3D16), /* Alias for +fp. */
30678 ARM_ADD ("vfpv3xd-fp16", FPU_ARCH_VFP_V3xD_FP16),
30679 ARM_ADD ("vfpv3-d16-fp16", FPU_ARCH_VFP_V3D16_FP16),
30680 ARM_EXT ("idiv", ARM_FEATURE_CORE_LOW (ARM_EXT_ADIV | ARM_EXT_DIV),
30681 ARM_FEATURE_CORE_LOW (ARM_EXT_ADIV | ARM_EXT_DIV)),
30682 { NULL, 0, ARM_ARCH_NONE, ARM_ARCH_NONE }
30685 static const struct arm_ext_table armv7em_ext_table[] =
30687 ARM_EXT ("fp", FPU_ARCH_VFP_V4_SP_D16, ALL_FP),
30688 /* Alias for +fp, used to be known as fpv4-sp-d16. */
30689 ARM_ADD ("vfpv4-sp-d16", FPU_ARCH_VFP_V4_SP_D16),
30690 ARM_ADD ("fpv5", FPU_ARCH_VFP_V5_SP_D16),
30691 ARM_ADD ("fp.dp", FPU_ARCH_VFP_V5D16),
30692 ARM_ADD ("fpv5-d16", FPU_ARCH_VFP_V5D16),
30693 { NULL, 0, ARM_ARCH_NONE, ARM_ARCH_NONE }
30696 static const struct arm_ext_table armv8a_ext_table[] =
30698 ARM_ADD ("crc", ARCH_CRC_ARMV8),
30699 ARM_ADD ("simd", FPU_ARCH_NEON_VFP_ARMV8),
30700 ARM_EXT ("crypto", FPU_ARCH_CRYPTO_NEON_VFP_ARMV8,
30701 ARM_FEATURE_COPROC (FPU_CRYPTO_ARMV8)),
30703 /* Armv8-a does not allow an FP implementation without SIMD, so the user
30704 should use the +simd option to turn on FP. */
30705 ARM_REMOVE ("fp", ALL_FP),
30706 ARM_ADD ("sb", ARM_FEATURE_CORE_HIGH (ARM_EXT2_SB)),
30707 ARM_ADD ("predres", ARM_FEATURE_CORE_HIGH (ARM_EXT2_PREDRES)),
30708 { NULL, 0, ARM_ARCH_NONE, ARM_ARCH_NONE }
30712 static const struct arm_ext_table armv81a_ext_table[] =
30714 ARM_ADD ("simd", FPU_ARCH_NEON_VFP_ARMV8_1),
30715 ARM_EXT ("crypto", FPU_ARCH_CRYPTO_NEON_VFP_ARMV8_1,
30716 ARM_FEATURE_COPROC (FPU_CRYPTO_ARMV8)),
30718 /* Armv8-a does not allow an FP implementation without SIMD, so the user
30719 should use the +simd option to turn on FP. */
30720 ARM_REMOVE ("fp", ALL_FP),
30721 ARM_ADD ("sb", ARM_FEATURE_CORE_HIGH (ARM_EXT2_SB)),
30722 ARM_ADD ("predres", ARM_FEATURE_CORE_HIGH (ARM_EXT2_PREDRES)),
30723 { NULL, 0, ARM_ARCH_NONE, ARM_ARCH_NONE }
30726 static const struct arm_ext_table armv82a_ext_table[] =
30728 ARM_ADD ("simd", FPU_ARCH_NEON_VFP_ARMV8_1),
30729 ARM_ADD ("fp16", FPU_ARCH_NEON_VFP_ARMV8_2_FP16),
30730 ARM_ADD ("fp16fml", FPU_ARCH_NEON_VFP_ARMV8_2_FP16FML),
30731 ARM_EXT ("crypto", FPU_ARCH_CRYPTO_NEON_VFP_ARMV8_1,
30732 ARM_FEATURE_COPROC (FPU_CRYPTO_ARMV8)),
30733 ARM_ADD ("dotprod", FPU_ARCH_DOTPROD_NEON_VFP_ARMV8),
30735 /* Armv8-a does not allow an FP implementation without SIMD, so the user
30736 should use the +simd option to turn on FP. */
30737 ARM_REMOVE ("fp", ALL_FP),
30738 ARM_ADD ("sb", ARM_FEATURE_CORE_HIGH (ARM_EXT2_SB)),
30739 ARM_ADD ("predres", ARM_FEATURE_CORE_HIGH (ARM_EXT2_PREDRES)),
30740 { NULL, 0, ARM_ARCH_NONE, ARM_ARCH_NONE }
30743 static const struct arm_ext_table armv84a_ext_table[] =
30745 ARM_ADD ("simd", FPU_ARCH_DOTPROD_NEON_VFP_ARMV8),
30746 ARM_ADD ("fp16", FPU_ARCH_NEON_VFP_ARMV8_4_FP16FML),
30747 ARM_EXT ("crypto", FPU_ARCH_CRYPTO_NEON_VFP_ARMV8_4,
30748 ARM_FEATURE_COPROC (FPU_CRYPTO_ARMV8)),
30750 /* Armv8-a does not allow an FP implementation without SIMD, so the user
30751 should use the +simd option to turn on FP. */
30752 ARM_REMOVE ("fp", ALL_FP),
30753 ARM_ADD ("sb", ARM_FEATURE_CORE_HIGH (ARM_EXT2_SB)),
30754 ARM_ADD ("predres", ARM_FEATURE_CORE_HIGH (ARM_EXT2_PREDRES)),
30755 { NULL, 0, ARM_ARCH_NONE, ARM_ARCH_NONE }
30758 static const struct arm_ext_table armv85a_ext_table[] =
30760 ARM_ADD ("simd", FPU_ARCH_DOTPROD_NEON_VFP_ARMV8),
30761 ARM_ADD ("fp16", FPU_ARCH_NEON_VFP_ARMV8_4_FP16FML),
30762 ARM_EXT ("crypto", FPU_ARCH_CRYPTO_NEON_VFP_ARMV8_4,
30763 ARM_FEATURE_COPROC (FPU_CRYPTO_ARMV8)),
30765 /* Armv8-a does not allow an FP implementation without SIMD, so the user
30766 should use the +simd option to turn on FP. */
30767 ARM_REMOVE ("fp", ALL_FP),
30768 { NULL, 0, ARM_ARCH_NONE, ARM_ARCH_NONE }
30771 static const struct arm_ext_table armv8m_main_ext_table[] =
30773 ARM_EXT ("dsp", ARM_FEATURE_CORE_LOW (ARM_EXT_V5ExP | ARM_EXT_V6_DSP),
30774 ARM_FEATURE_CORE_LOW (ARM_EXT_V5ExP | ARM_EXT_V6_DSP)),
30775 ARM_EXT ("fp", FPU_ARCH_VFP_V5_SP_D16, ALL_FP),
30776 ARM_ADD ("fp.dp", FPU_ARCH_VFP_V5D16),
30777 { NULL, 0, ARM_ARCH_NONE, ARM_ARCH_NONE }
30780 static const struct arm_ext_table armv8_1m_main_ext_table[] =
30782 ARM_EXT ("dsp", ARM_FEATURE_CORE_LOW (ARM_EXT_V5ExP | ARM_EXT_V6_DSP),
30783 ARM_FEATURE_CORE_LOW (ARM_EXT_V5ExP | ARM_EXT_V6_DSP)),
30785 ARM_FEATURE (0, ARM_EXT2_FP16_INST,
30786 FPU_VFP_V5_SP_D16 | FPU_VFP_EXT_FP16 | FPU_VFP_EXT_FMA),
30789 ARM_FEATURE (0, ARM_EXT2_FP16_INST,
30790 FPU_VFP_V5D16 | FPU_VFP_EXT_FP16 | FPU_VFP_EXT_FMA)),
30791 ARM_EXT ("mve", ARM_FEATURE_COPROC (FPU_MVE),
30792 ARM_FEATURE_COPROC (FPU_MVE | FPU_MVE_FP)),
30794 ARM_FEATURE (0, ARM_EXT2_FP16_INST,
30795 FPU_MVE | FPU_MVE_FP | FPU_VFP_V5_SP_D16 |
30796 FPU_VFP_EXT_FP16 | FPU_VFP_EXT_FMA)),
30797 { NULL, 0, ARM_ARCH_NONE, ARM_ARCH_NONE }
30800 static const struct arm_ext_table armv8r_ext_table[] =
30802 ARM_ADD ("crc", ARCH_CRC_ARMV8),
30803 ARM_ADD ("simd", FPU_ARCH_NEON_VFP_ARMV8),
30804 ARM_EXT ("crypto", FPU_ARCH_CRYPTO_NEON_VFP_ARMV8,
30805 ARM_FEATURE_COPROC (FPU_CRYPTO_ARMV8)),
30806 ARM_REMOVE ("fp", ALL_FP),
30807 ARM_ADD ("fp.sp", FPU_ARCH_VFP_V5_SP_D16),
30808 { NULL, 0, ARM_ARCH_NONE, ARM_ARCH_NONE }
30811 /* This list should, at a minimum, contain all the architecture names
30812 recognized by GCC. */
30813 #define ARM_ARCH_OPT(N, V, DF) { N, sizeof (N) - 1, V, DF, NULL }
30814 #define ARM_ARCH_OPT2(N, V, DF, ext) \
30815 { N, sizeof (N) - 1, V, DF, ext##_ext_table }
30817 static const struct arm_arch_option_table arm_archs[] =
30819 ARM_ARCH_OPT ("all", ARM_ANY, FPU_ARCH_FPA),
30820 ARM_ARCH_OPT ("armv1", ARM_ARCH_V1, FPU_ARCH_FPA),
30821 ARM_ARCH_OPT ("armv2", ARM_ARCH_V2, FPU_ARCH_FPA),
30822 ARM_ARCH_OPT ("armv2a", ARM_ARCH_V2S, FPU_ARCH_FPA),
30823 ARM_ARCH_OPT ("armv2s", ARM_ARCH_V2S, FPU_ARCH_FPA),
30824 ARM_ARCH_OPT ("armv3", ARM_ARCH_V3, FPU_ARCH_FPA),
30825 ARM_ARCH_OPT ("armv3m", ARM_ARCH_V3M, FPU_ARCH_FPA),
30826 ARM_ARCH_OPT ("armv4", ARM_ARCH_V4, FPU_ARCH_FPA),
30827 ARM_ARCH_OPT ("armv4xm", ARM_ARCH_V4xM, FPU_ARCH_FPA),
30828 ARM_ARCH_OPT ("armv4t", ARM_ARCH_V4T, FPU_ARCH_FPA),
30829 ARM_ARCH_OPT ("armv4txm", ARM_ARCH_V4TxM, FPU_ARCH_FPA),
30830 ARM_ARCH_OPT ("armv5", ARM_ARCH_V5, FPU_ARCH_VFP),
30831 ARM_ARCH_OPT ("armv5t", ARM_ARCH_V5T, FPU_ARCH_VFP),
30832 ARM_ARCH_OPT ("armv5txm", ARM_ARCH_V5TxM, FPU_ARCH_VFP),
30833 ARM_ARCH_OPT2 ("armv5te", ARM_ARCH_V5TE, FPU_ARCH_VFP, armv5te),
30834 ARM_ARCH_OPT2 ("armv5texp", ARM_ARCH_V5TExP, FPU_ARCH_VFP, armv5te),
30835 ARM_ARCH_OPT2 ("armv5tej", ARM_ARCH_V5TEJ, FPU_ARCH_VFP, armv5te),
30836 ARM_ARCH_OPT2 ("armv6", ARM_ARCH_V6, FPU_ARCH_VFP, armv5te),
30837 ARM_ARCH_OPT2 ("armv6j", ARM_ARCH_V6, FPU_ARCH_VFP, armv5te),
30838 ARM_ARCH_OPT2 ("armv6k", ARM_ARCH_V6K, FPU_ARCH_VFP, armv5te),
30839 ARM_ARCH_OPT2 ("armv6z", ARM_ARCH_V6Z, FPU_ARCH_VFP, armv5te),
30840 /* The official spelling of this variant is ARMv6KZ, the name "armv6zk" is
30841 kept to preserve existing behaviour. */
30842 ARM_ARCH_OPT2 ("armv6kz", ARM_ARCH_V6KZ, FPU_ARCH_VFP, armv5te),
30843 ARM_ARCH_OPT2 ("armv6zk", ARM_ARCH_V6KZ, FPU_ARCH_VFP, armv5te),
30844 ARM_ARCH_OPT2 ("armv6t2", ARM_ARCH_V6T2, FPU_ARCH_VFP, armv5te),
30845 ARM_ARCH_OPT2 ("armv6kt2", ARM_ARCH_V6KT2, FPU_ARCH_VFP, armv5te),
30846 ARM_ARCH_OPT2 ("armv6zt2", ARM_ARCH_V6ZT2, FPU_ARCH_VFP, armv5te),
30847 /* The official spelling of this variant is ARMv6KZ, the name "armv6zkt2" is
30848 kept to preserve existing behaviour. */
30849 ARM_ARCH_OPT2 ("armv6kzt2", ARM_ARCH_V6KZT2, FPU_ARCH_VFP, armv5te),
30850 ARM_ARCH_OPT2 ("armv6zkt2", ARM_ARCH_V6KZT2, FPU_ARCH_VFP, armv5te),
30851 ARM_ARCH_OPT ("armv6-m", ARM_ARCH_V6M, FPU_ARCH_VFP),
30852 ARM_ARCH_OPT ("armv6s-m", ARM_ARCH_V6SM, FPU_ARCH_VFP),
30853 ARM_ARCH_OPT2 ("armv7", ARM_ARCH_V7, FPU_ARCH_VFP, armv7),
30854 /* The official spelling of the ARMv7 profile variants is the dashed form.
30855 Accept the non-dashed form for compatibility with old toolchains. */
30856 ARM_ARCH_OPT2 ("armv7a", ARM_ARCH_V7A, FPU_ARCH_VFP, armv7a),
30857 ARM_ARCH_OPT2 ("armv7ve", ARM_ARCH_V7VE, FPU_ARCH_VFP, armv7ve),
30858 ARM_ARCH_OPT2 ("armv7r", ARM_ARCH_V7R, FPU_ARCH_VFP, armv7r),
30859 ARM_ARCH_OPT ("armv7m", ARM_ARCH_V7M, FPU_ARCH_VFP),
30860 ARM_ARCH_OPT2 ("armv7-a", ARM_ARCH_V7A, FPU_ARCH_VFP, armv7a),
30861 ARM_ARCH_OPT2 ("armv7-r", ARM_ARCH_V7R, FPU_ARCH_VFP, armv7r),
30862 ARM_ARCH_OPT ("armv7-m", ARM_ARCH_V7M, FPU_ARCH_VFP),
30863 ARM_ARCH_OPT2 ("armv7e-m", ARM_ARCH_V7EM, FPU_ARCH_VFP, armv7em),
30864 ARM_ARCH_OPT ("armv8-m.base", ARM_ARCH_V8M_BASE, FPU_ARCH_VFP),
30865 ARM_ARCH_OPT2 ("armv8-m.main", ARM_ARCH_V8M_MAIN, FPU_ARCH_VFP,
30867 ARM_ARCH_OPT2 ("armv8.1-m.main", ARM_ARCH_V8_1M_MAIN, FPU_ARCH_VFP,
30869 ARM_ARCH_OPT2 ("armv8-a", ARM_ARCH_V8A, FPU_ARCH_VFP, armv8a),
30870 ARM_ARCH_OPT2 ("armv8.1-a", ARM_ARCH_V8_1A, FPU_ARCH_VFP, armv81a),
30871 ARM_ARCH_OPT2 ("armv8.2-a", ARM_ARCH_V8_2A, FPU_ARCH_VFP, armv82a),
30872 ARM_ARCH_OPT2 ("armv8.3-a", ARM_ARCH_V8_3A, FPU_ARCH_VFP, armv82a),
30873 ARM_ARCH_OPT2 ("armv8-r", ARM_ARCH_V8R, FPU_ARCH_VFP, armv8r),
30874 ARM_ARCH_OPT2 ("armv8.4-a", ARM_ARCH_V8_4A, FPU_ARCH_VFP, armv84a),
30875 ARM_ARCH_OPT2 ("armv8.5-a", ARM_ARCH_V8_5A, FPU_ARCH_VFP, armv85a),
30876 ARM_ARCH_OPT ("xscale", ARM_ARCH_XSCALE, FPU_ARCH_VFP),
30877 ARM_ARCH_OPT ("iwmmxt", ARM_ARCH_IWMMXT, FPU_ARCH_VFP),
30878 ARM_ARCH_OPT ("iwmmxt2", ARM_ARCH_IWMMXT2, FPU_ARCH_VFP),
30879 { NULL, 0, ARM_ARCH_NONE, ARM_ARCH_NONE, NULL }
30881 #undef ARM_ARCH_OPT
30883 /* ISA extensions in the co-processor and main instruction set space. */
30885 struct arm_option_extension_value_table
30889 const arm_feature_set merge_value;
30890 const arm_feature_set clear_value;
30891 /* List of architectures for which an extension is available. ARM_ARCH_NONE
30892 indicates that an extension is available for all architectures while
30893 ARM_ANY marks an empty entry. */
30894 const arm_feature_set allowed_archs[2];
30897 /* The following table must be in alphabetical order with a NULL last entry. */
30899 #define ARM_EXT_OPT(N, M, C, AA) { N, sizeof (N) - 1, M, C, { AA, ARM_ANY } }
30900 #define ARM_EXT_OPT2(N, M, C, AA1, AA2) { N, sizeof (N) - 1, M, C, {AA1, AA2} }
30902 /* DEPRECATED: Refrain from using this table to add any new extensions, instead
30903 use the context sensitive approach using arm_ext_table's. */
30904 static const struct arm_option_extension_value_table arm_extensions[] =
30906 ARM_EXT_OPT ("crc", ARCH_CRC_ARMV8, ARM_FEATURE_COPROC (CRC_EXT_ARMV8),
30907 ARM_FEATURE_CORE_LOW (ARM_EXT_V8)),
30908 ARM_EXT_OPT ("crypto", FPU_ARCH_CRYPTO_NEON_VFP_ARMV8,
30909 ARM_FEATURE_COPROC (FPU_CRYPTO_ARMV8),
30910 ARM_FEATURE_CORE_LOW (ARM_EXT_V8)),
30911 ARM_EXT_OPT ("dotprod", FPU_ARCH_DOTPROD_NEON_VFP_ARMV8,
30912 ARM_FEATURE_COPROC (FPU_NEON_EXT_DOTPROD),
30914 ARM_EXT_OPT ("dsp", ARM_FEATURE_CORE_LOW (ARM_EXT_V5ExP | ARM_EXT_V6_DSP),
30915 ARM_FEATURE_CORE_LOW (ARM_EXT_V5ExP | ARM_EXT_V6_DSP),
30916 ARM_FEATURE_CORE (ARM_EXT_V7M, ARM_EXT2_V8M)),
30917 ARM_EXT_OPT ("fp", FPU_ARCH_VFP_ARMV8, ARM_FEATURE_COPROC (FPU_VFP_ARMV8),
30918 ARM_FEATURE_CORE_LOW (ARM_EXT_V8)),
30919 ARM_EXT_OPT ("fp16", ARM_FEATURE_CORE_HIGH (ARM_EXT2_FP16_INST),
30920 ARM_FEATURE_CORE_HIGH (ARM_EXT2_FP16_INST),
30922 ARM_EXT_OPT ("fp16fml", ARM_FEATURE_CORE_HIGH (ARM_EXT2_FP16_INST
30923 | ARM_EXT2_FP16_FML),
30924 ARM_FEATURE_CORE_HIGH (ARM_EXT2_FP16_INST
30925 | ARM_EXT2_FP16_FML),
30927 ARM_EXT_OPT2 ("idiv", ARM_FEATURE_CORE_LOW (ARM_EXT_ADIV | ARM_EXT_DIV),
30928 ARM_FEATURE_CORE_LOW (ARM_EXT_ADIV | ARM_EXT_DIV),
30929 ARM_FEATURE_CORE_LOW (ARM_EXT_V7A),
30930 ARM_FEATURE_CORE_LOW (ARM_EXT_V7R)),
30931 /* Duplicate entry for the purpose of allowing ARMv7 to match in presence of
30932 Thumb divide instruction. Due to this having the same name as the
30933 previous entry, this will be ignored when doing command-line parsing and
30934 only considered by build attribute selection code. */
30935 ARM_EXT_OPT ("idiv", ARM_FEATURE_CORE_LOW (ARM_EXT_DIV),
30936 ARM_FEATURE_CORE_LOW (ARM_EXT_DIV),
30937 ARM_FEATURE_CORE_LOW (ARM_EXT_V7)),
30938 ARM_EXT_OPT ("iwmmxt",ARM_FEATURE_COPROC (ARM_CEXT_IWMMXT),
30939 ARM_FEATURE_COPROC (ARM_CEXT_IWMMXT), ARM_ARCH_NONE),
30940 ARM_EXT_OPT ("iwmmxt2", ARM_FEATURE_COPROC (ARM_CEXT_IWMMXT2),
30941 ARM_FEATURE_COPROC (ARM_CEXT_IWMMXT2), ARM_ARCH_NONE),
30942 ARM_EXT_OPT ("maverick", ARM_FEATURE_COPROC (ARM_CEXT_MAVERICK),
30943 ARM_FEATURE_COPROC (ARM_CEXT_MAVERICK), ARM_ARCH_NONE),
30944 ARM_EXT_OPT2 ("mp", ARM_FEATURE_CORE_LOW (ARM_EXT_MP),
30945 ARM_FEATURE_CORE_LOW (ARM_EXT_MP),
30946 ARM_FEATURE_CORE_LOW (ARM_EXT_V7A),
30947 ARM_FEATURE_CORE_LOW (ARM_EXT_V7R)),
30948 ARM_EXT_OPT ("os", ARM_FEATURE_CORE_LOW (ARM_EXT_OS),
30949 ARM_FEATURE_CORE_LOW (ARM_EXT_OS),
30950 ARM_FEATURE_CORE_LOW (ARM_EXT_V6M)),
30951 ARM_EXT_OPT ("pan", ARM_FEATURE_CORE_HIGH (ARM_EXT2_PAN),
30952 ARM_FEATURE (ARM_EXT_V8, ARM_EXT2_PAN, 0),
30953 ARM_FEATURE_CORE_HIGH (ARM_EXT2_V8A)),
30954 ARM_EXT_OPT ("predres", ARM_FEATURE_CORE_HIGH (ARM_EXT2_PREDRES),
30955 ARM_FEATURE_CORE_HIGH (ARM_EXT2_PREDRES),
30957 ARM_EXT_OPT ("ras", ARM_FEATURE_CORE_HIGH (ARM_EXT2_RAS),
30958 ARM_FEATURE (ARM_EXT_V8, ARM_EXT2_RAS, 0),
30959 ARM_FEATURE_CORE_HIGH (ARM_EXT2_V8A)),
30960 ARM_EXT_OPT ("rdma", FPU_ARCH_NEON_VFP_ARMV8_1,
30961 ARM_FEATURE_COPROC (FPU_NEON_ARMV8 | FPU_NEON_EXT_RDMA),
30962 ARM_FEATURE_CORE_HIGH (ARM_EXT2_V8A)),
30963 ARM_EXT_OPT ("sb", ARM_FEATURE_CORE_HIGH (ARM_EXT2_SB),
30964 ARM_FEATURE_CORE_HIGH (ARM_EXT2_SB),
30966 ARM_EXT_OPT2 ("sec", ARM_FEATURE_CORE_LOW (ARM_EXT_SEC),
30967 ARM_FEATURE_CORE_LOW (ARM_EXT_SEC),
30968 ARM_FEATURE_CORE_LOW (ARM_EXT_V6K),
30969 ARM_FEATURE_CORE_LOW (ARM_EXT_V7A)),
30970 ARM_EXT_OPT ("simd", FPU_ARCH_NEON_VFP_ARMV8,
30971 ARM_FEATURE_COPROC (FPU_NEON_ARMV8),
30972 ARM_FEATURE_CORE_LOW (ARM_EXT_V8)),
30973 ARM_EXT_OPT ("virt", ARM_FEATURE_CORE_LOW (ARM_EXT_VIRT | ARM_EXT_ADIV
30975 ARM_FEATURE_CORE_LOW (ARM_EXT_VIRT),
30976 ARM_FEATURE_CORE_LOW (ARM_EXT_V7A)),
30977 ARM_EXT_OPT ("xscale",ARM_FEATURE_COPROC (ARM_CEXT_XSCALE),
30978 ARM_FEATURE_COPROC (ARM_CEXT_XSCALE), ARM_ARCH_NONE),
30979 { NULL, 0, ARM_ARCH_NONE, ARM_ARCH_NONE, { ARM_ARCH_NONE, ARM_ARCH_NONE } }
30983 /* ISA floating-point and Advanced SIMD extensions. */
30984 struct arm_option_fpu_value_table
30987 const arm_feature_set value;
30990 /* This list should, at a minimum, contain all the fpu names
30991 recognized by GCC. */
30992 static const struct arm_option_fpu_value_table arm_fpus[] =
30994 {"softfpa", FPU_NONE},
30995 {"fpe", FPU_ARCH_FPE},
30996 {"fpe2", FPU_ARCH_FPE},
30997 {"fpe3", FPU_ARCH_FPA}, /* Third release supports LFM/SFM. */
30998 {"fpa", FPU_ARCH_FPA},
30999 {"fpa10", FPU_ARCH_FPA},
31000 {"fpa11", FPU_ARCH_FPA},
31001 {"arm7500fe", FPU_ARCH_FPA},
31002 {"softvfp", FPU_ARCH_VFP},
31003 {"softvfp+vfp", FPU_ARCH_VFP_V2},
31004 {"vfp", FPU_ARCH_VFP_V2},
31005 {"vfp9", FPU_ARCH_VFP_V2},
31006 {"vfp3", FPU_ARCH_VFP_V3}, /* Undocumented, use vfpv3. */
31007 {"vfp10", FPU_ARCH_VFP_V2},
31008 {"vfp10-r0", FPU_ARCH_VFP_V1},
31009 {"vfpxd", FPU_ARCH_VFP_V1xD},
31010 {"vfpv2", FPU_ARCH_VFP_V2},
31011 {"vfpv3", FPU_ARCH_VFP_V3},
31012 {"vfpv3-fp16", FPU_ARCH_VFP_V3_FP16},
31013 {"vfpv3-d16", FPU_ARCH_VFP_V3D16},
31014 {"vfpv3-d16-fp16", FPU_ARCH_VFP_V3D16_FP16},
31015 {"vfpv3xd", FPU_ARCH_VFP_V3xD},
31016 {"vfpv3xd-fp16", FPU_ARCH_VFP_V3xD_FP16},
31017 {"arm1020t", FPU_ARCH_VFP_V1},
31018 {"arm1020e", FPU_ARCH_VFP_V2},
31019 {"arm1136jfs", FPU_ARCH_VFP_V2}, /* Undocumented, use arm1136jf-s. */
31020 {"arm1136jf-s", FPU_ARCH_VFP_V2},
31021 {"maverick", FPU_ARCH_MAVERICK},
31022 {"neon", FPU_ARCH_VFP_V3_PLUS_NEON_V1},
31023 {"neon-vfpv3", FPU_ARCH_VFP_V3_PLUS_NEON_V1},
31024 {"neon-fp16", FPU_ARCH_NEON_FP16},
31025 {"vfpv4", FPU_ARCH_VFP_V4},
31026 {"vfpv4-d16", FPU_ARCH_VFP_V4D16},
31027 {"fpv4-sp-d16", FPU_ARCH_VFP_V4_SP_D16},
31028 {"fpv5-d16", FPU_ARCH_VFP_V5D16},
31029 {"fpv5-sp-d16", FPU_ARCH_VFP_V5_SP_D16},
31030 {"neon-vfpv4", FPU_ARCH_NEON_VFP_V4},
31031 {"fp-armv8", FPU_ARCH_VFP_ARMV8},
31032 {"neon-fp-armv8", FPU_ARCH_NEON_VFP_ARMV8},
31033 {"crypto-neon-fp-armv8",
31034 FPU_ARCH_CRYPTO_NEON_VFP_ARMV8},
31035 {"neon-fp-armv8.1", FPU_ARCH_NEON_VFP_ARMV8_1},
31036 {"crypto-neon-fp-armv8.1",
31037 FPU_ARCH_CRYPTO_NEON_VFP_ARMV8_1},
31038 {NULL, ARM_ARCH_NONE}
31041 struct arm_option_value_table
31047 static const struct arm_option_value_table arm_float_abis[] =
31049 {"hard", ARM_FLOAT_ABI_HARD},
31050 {"softfp", ARM_FLOAT_ABI_SOFTFP},
31051 {"soft", ARM_FLOAT_ABI_SOFT},
31056 /* We only know how to output GNU and ver 4/5 (AAELF) formats. */
31057 static const struct arm_option_value_table arm_eabis[] =
31059 {"gnu", EF_ARM_EABI_UNKNOWN},
31060 {"4", EF_ARM_EABI_VER4},
31061 {"5", EF_ARM_EABI_VER5},
31066 struct arm_long_option_table
31068 const char * option; /* Substring to match. */
31069 const char * help; /* Help information. */
31070 int (* func) (const char * subopt); /* Function to decode sub-option. */
31071 const char * deprecated; /* If non-null, print this message. */
31075 arm_parse_extension (const char *str, const arm_feature_set *opt_set,
31076 arm_feature_set *ext_set,
31077 const struct arm_ext_table *ext_table)
31079 /* We insist on extensions being specified in alphabetical order, and with
31080 extensions being added before being removed. We achieve this by having
31081 the global ARM_EXTENSIONS table in alphabetical order, and using the
31082 ADDING_VALUE variable to indicate whether we are adding an extension (1)
31083 or removing it (0) and only allowing it to change in the order
31085 const struct arm_option_extension_value_table * opt = NULL;
31086 const arm_feature_set arm_any = ARM_ANY;
31087 int adding_value = -1;
31089 while (str != NULL && *str != 0)
31096 as_bad (_("invalid architectural extension"));
31101 ext = strchr (str, '+');
31106 len = strlen (str);
31108 if (len >= 2 && strncmp (str, "no", 2) == 0)
31110 if (adding_value != 0)
31113 opt = arm_extensions;
31121 if (adding_value == -1)
31124 opt = arm_extensions;
31126 else if (adding_value != 1)
31128 as_bad (_("must specify extensions to add before specifying "
31129 "those to remove"));
31136 as_bad (_("missing architectural extension"));
31140 gas_assert (adding_value != -1);
31141 gas_assert (opt != NULL);
31143 if (ext_table != NULL)
31145 const struct arm_ext_table * ext_opt = ext_table;
31146 bfd_boolean found = FALSE;
31147 for (; ext_opt->name != NULL; ext_opt++)
31148 if (ext_opt->name_len == len
31149 && strncmp (ext_opt->name, str, len) == 0)
31153 if (ARM_FEATURE_ZERO (ext_opt->merge))
31154 /* TODO: Option not supported. When we remove the
31155 legacy table this case should error out. */
31158 ARM_MERGE_FEATURE_SETS (*ext_set, *ext_set, ext_opt->merge);
31162 if (ARM_FEATURE_ZERO (ext_opt->clear))
31163 /* TODO: Option not supported. When we remove the
31164 legacy table this case should error out. */
31166 ARM_CLEAR_FEATURE (*ext_set, *ext_set, ext_opt->clear);
31178 /* Scan over the options table trying to find an exact match. */
31179 for (; opt->name != NULL; opt++)
31180 if (opt->name_len == len && strncmp (opt->name, str, len) == 0)
31182 int i, nb_allowed_archs =
31183 sizeof (opt->allowed_archs) / sizeof (opt->allowed_archs[0]);
31184 /* Check we can apply the extension to this architecture. */
31185 for (i = 0; i < nb_allowed_archs; i++)
31188 if (ARM_FEATURE_EQUAL (opt->allowed_archs[i], arm_any))
31190 if (ARM_FSET_CPU_SUBSET (opt->allowed_archs[i], *opt_set))
31193 if (i == nb_allowed_archs)
31195 as_bad (_("extension does not apply to the base architecture"));
31199 /* Add or remove the extension. */
31201 ARM_MERGE_FEATURE_SETS (*ext_set, *ext_set, opt->merge_value);
31203 ARM_CLEAR_FEATURE (*ext_set, *ext_set, opt->clear_value);
31205 /* Allowing Thumb division instructions for ARMv7 in autodetection
31206 rely on this break so that duplicate extensions (extensions
31207 with the same name as a previous extension in the list) are not
31208 considered for command-line parsing. */
31212 if (opt->name == NULL)
31214 /* Did we fail to find an extension because it wasn't specified in
31215 alphabetical order, or because it does not exist? */
31217 for (opt = arm_extensions; opt->name != NULL; opt++)
31218 if (opt->name_len == len && strncmp (opt->name, str, len) == 0)
31221 if (opt->name == NULL)
31222 as_bad (_("unknown architectural extension `%s'"), str);
31224 as_bad (_("architectural extensions must be specified in "
31225 "alphabetical order"));
31231 /* We should skip the extension we've just matched the next time
31243 arm_parse_cpu (const char *str)
31245 const struct arm_cpu_option_table *opt;
31246 const char *ext = strchr (str, '+');
31252 len = strlen (str);
31256 as_bad (_("missing cpu name `%s'"), str);
31260 for (opt = arm_cpus; opt->name != NULL; opt++)
31261 if (opt->name_len == len && strncmp (opt->name, str, len) == 0)
31263 mcpu_cpu_opt = &opt->value;
31264 if (mcpu_ext_opt == NULL)
31265 mcpu_ext_opt = XNEW (arm_feature_set);
31266 *mcpu_ext_opt = opt->ext;
31267 mcpu_fpu_opt = &opt->default_fpu;
31268 if (opt->canonical_name)
31270 gas_assert (sizeof selected_cpu_name > strlen (opt->canonical_name));
31271 strcpy (selected_cpu_name, opt->canonical_name);
31277 if (len >= sizeof selected_cpu_name)
31278 len = (sizeof selected_cpu_name) - 1;
31280 for (i = 0; i < len; i++)
31281 selected_cpu_name[i] = TOUPPER (opt->name[i]);
31282 selected_cpu_name[i] = 0;
31286 return arm_parse_extension (ext, mcpu_cpu_opt, mcpu_ext_opt, NULL);
31291 as_bad (_("unknown cpu `%s'"), str);
31296 arm_parse_arch (const char *str)
31298 const struct arm_arch_option_table *opt;
31299 const char *ext = strchr (str, '+');
31305 len = strlen (str);
31309 as_bad (_("missing architecture name `%s'"), str);
31313 for (opt = arm_archs; opt->name != NULL; opt++)
31314 if (opt->name_len == len && strncmp (opt->name, str, len) == 0)
31316 march_cpu_opt = &opt->value;
31317 if (march_ext_opt == NULL)
31318 march_ext_opt = XNEW (arm_feature_set);
31319 *march_ext_opt = arm_arch_none;
31320 march_fpu_opt = &opt->default_fpu;
31321 strcpy (selected_cpu_name, opt->name);
31324 return arm_parse_extension (ext, march_cpu_opt, march_ext_opt,
31330 as_bad (_("unknown architecture `%s'\n"), str);
31335 arm_parse_fpu (const char * str)
31337 const struct arm_option_fpu_value_table * opt;
31339 for (opt = arm_fpus; opt->name != NULL; opt++)
31340 if (streq (opt->name, str))
31342 mfpu_opt = &opt->value;
31346 as_bad (_("unknown floating point format `%s'\n"), str);
31351 arm_parse_float_abi (const char * str)
31353 const struct arm_option_value_table * opt;
31355 for (opt = arm_float_abis; opt->name != NULL; opt++)
31356 if (streq (opt->name, str))
31358 mfloat_abi_opt = opt->value;
31362 as_bad (_("unknown floating point abi `%s'\n"), str);
31368 arm_parse_eabi (const char * str)
31370 const struct arm_option_value_table *opt;
31372 for (opt = arm_eabis; opt->name != NULL; opt++)
31373 if (streq (opt->name, str))
31375 meabi_flags = opt->value;
31378 as_bad (_("unknown EABI `%s'\n"), str);
31384 arm_parse_it_mode (const char * str)
31386 bfd_boolean ret = TRUE;
31388 if (streq ("arm", str))
31389 implicit_it_mode = IMPLICIT_IT_MODE_ARM;
31390 else if (streq ("thumb", str))
31391 implicit_it_mode = IMPLICIT_IT_MODE_THUMB;
31392 else if (streq ("always", str))
31393 implicit_it_mode = IMPLICIT_IT_MODE_ALWAYS;
31394 else if (streq ("never", str))
31395 implicit_it_mode = IMPLICIT_IT_MODE_NEVER;
31398 as_bad (_("unknown implicit IT mode `%s', should be "\
31399 "arm, thumb, always, or never."), str);
31407 arm_ccs_mode (const char * unused ATTRIBUTE_UNUSED)
31409 codecomposer_syntax = TRUE;
31410 arm_comment_chars[0] = ';';
31411 arm_line_separator_chars[0] = 0;
31415 struct arm_long_option_table arm_long_opts[] =
31417 {"mcpu=", N_("<cpu name>\t assemble for CPU <cpu name>"),
31418 arm_parse_cpu, NULL},
31419 {"march=", N_("<arch name>\t assemble for architecture <arch name>"),
31420 arm_parse_arch, NULL},
31421 {"mfpu=", N_("<fpu name>\t assemble for FPU architecture <fpu name>"),
31422 arm_parse_fpu, NULL},
31423 {"mfloat-abi=", N_("<abi>\t assemble for floating point ABI <abi>"),
31424 arm_parse_float_abi, NULL},
31426 {"meabi=", N_("<ver>\t\t assemble for eabi version <ver>"),
31427 arm_parse_eabi, NULL},
31429 {"mimplicit-it=", N_("<mode>\t controls implicit insertion of IT instructions"),
31430 arm_parse_it_mode, NULL},
31431 {"mccs", N_("\t\t\t TI CodeComposer Studio syntax compatibility mode"),
31432 arm_ccs_mode, NULL},
31433 {NULL, NULL, 0, NULL}
31437 md_parse_option (int c, const char * arg)
31439 struct arm_option_table *opt;
31440 const struct arm_legacy_option_table *fopt;
31441 struct arm_long_option_table *lopt;
31447 target_big_endian = 1;
31453 target_big_endian = 0;
31457 case OPTION_FIX_V4BX:
31465 #endif /* OBJ_ELF */
31468 /* Listing option. Just ignore these, we don't support additional
31473 for (opt = arm_opts; opt->option != NULL; opt++)
31475 if (c == opt->option[0]
31476 && ((arg == NULL && opt->option[1] == 0)
31477 || streq (arg, opt->option + 1)))
31479 /* If the option is deprecated, tell the user. */
31480 if (warn_on_deprecated && opt->deprecated != NULL)
31481 as_tsktsk (_("option `-%c%s' is deprecated: %s"), c,
31482 arg ? arg : "", _(opt->deprecated));
31484 if (opt->var != NULL)
31485 *opt->var = opt->value;
31491 for (fopt = arm_legacy_opts; fopt->option != NULL; fopt++)
31493 if (c == fopt->option[0]
31494 && ((arg == NULL && fopt->option[1] == 0)
31495 || streq (arg, fopt->option + 1)))
31497 /* If the option is deprecated, tell the user. */
31498 if (warn_on_deprecated && fopt->deprecated != NULL)
31499 as_tsktsk (_("option `-%c%s' is deprecated: %s"), c,
31500 arg ? arg : "", _(fopt->deprecated));
31502 if (fopt->var != NULL)
31503 *fopt->var = &fopt->value;
31509 for (lopt = arm_long_opts; lopt->option != NULL; lopt++)
31511 /* These options are expected to have an argument. */
31512 if (c == lopt->option[0]
31514 && strncmp (arg, lopt->option + 1,
31515 strlen (lopt->option + 1)) == 0)
31517 /* If the option is deprecated, tell the user. */
31518 if (warn_on_deprecated && lopt->deprecated != NULL)
31519 as_tsktsk (_("option `-%c%s' is deprecated: %s"), c, arg,
31520 _(lopt->deprecated));
31522 /* Call the sup-option parser. */
31523 return lopt->func (arg + strlen (lopt->option) - 1);
31534 md_show_usage (FILE * fp)
31536 struct arm_option_table *opt;
31537 struct arm_long_option_table *lopt;
31539 fprintf (fp, _(" ARM-specific assembler options:\n"));
31541 for (opt = arm_opts; opt->option != NULL; opt++)
31542 if (opt->help != NULL)
31543 fprintf (fp, " -%-23s%s\n", opt->option, _(opt->help));
31545 for (lopt = arm_long_opts; lopt->option != NULL; lopt++)
31546 if (lopt->help != NULL)
31547 fprintf (fp, " -%s%s\n", lopt->option, _(lopt->help));
31551 -EB assemble code for a big-endian cpu\n"));
31556 -EL assemble code for a little-endian cpu\n"));
31560 --fix-v4bx Allow BX in ARMv4 code\n"));
31564 --fdpic generate an FDPIC object file\n"));
31565 #endif /* OBJ_ELF */
31573 arm_feature_set flags;
31574 } cpu_arch_ver_table;
31576 /* Mapping from CPU features to EABI CPU arch values. Table must be sorted
31577 chronologically for architectures, with an exception for ARMv6-M and
31578 ARMv6S-M due to legacy reasons. No new architecture should have a
31579 special case. This allows for build attribute selection results to be
31580 stable when new architectures are added. */
31581 static const cpu_arch_ver_table cpu_arch_ver[] =
31583 {TAG_CPU_ARCH_PRE_V4, ARM_ARCH_V1},
31584 {TAG_CPU_ARCH_PRE_V4, ARM_ARCH_V2},
31585 {TAG_CPU_ARCH_PRE_V4, ARM_ARCH_V2S},
31586 {TAG_CPU_ARCH_PRE_V4, ARM_ARCH_V3},
31587 {TAG_CPU_ARCH_PRE_V4, ARM_ARCH_V3M},
31588 {TAG_CPU_ARCH_V4, ARM_ARCH_V4xM},
31589 {TAG_CPU_ARCH_V4, ARM_ARCH_V4},
31590 {TAG_CPU_ARCH_V4T, ARM_ARCH_V4TxM},
31591 {TAG_CPU_ARCH_V4T, ARM_ARCH_V4T},
31592 {TAG_CPU_ARCH_V5T, ARM_ARCH_V5xM},
31593 {TAG_CPU_ARCH_V5T, ARM_ARCH_V5},
31594 {TAG_CPU_ARCH_V5T, ARM_ARCH_V5TxM},
31595 {TAG_CPU_ARCH_V5T, ARM_ARCH_V5T},
31596 {TAG_CPU_ARCH_V5TE, ARM_ARCH_V5TExP},
31597 {TAG_CPU_ARCH_V5TE, ARM_ARCH_V5TE},
31598 {TAG_CPU_ARCH_V5TEJ, ARM_ARCH_V5TEJ},
31599 {TAG_CPU_ARCH_V6, ARM_ARCH_V6},
31600 {TAG_CPU_ARCH_V6KZ, ARM_ARCH_V6Z},
31601 {TAG_CPU_ARCH_V6KZ, ARM_ARCH_V6KZ},
31602 {TAG_CPU_ARCH_V6K, ARM_ARCH_V6K},
31603 {TAG_CPU_ARCH_V6T2, ARM_ARCH_V6T2},
31604 {TAG_CPU_ARCH_V6T2, ARM_ARCH_V6KT2},
31605 {TAG_CPU_ARCH_V6T2, ARM_ARCH_V6ZT2},
31606 {TAG_CPU_ARCH_V6T2, ARM_ARCH_V6KZT2},
31608 /* When assembling a file with only ARMv6-M or ARMv6S-M instruction, GNU as
31609 always selected build attributes to match those of ARMv6-M
31610 (resp. ARMv6S-M). However, due to these architectures being a strict
31611 subset of ARMv7-M in terms of instructions available, ARMv7-M attributes
31612 would be selected when fully respecting chronology of architectures.
31613 It is thus necessary to make a special case of ARMv6-M and ARMv6S-M and
31614 move them before ARMv7 architectures. */
31615 {TAG_CPU_ARCH_V6_M, ARM_ARCH_V6M},
31616 {TAG_CPU_ARCH_V6S_M, ARM_ARCH_V6SM},
31618 {TAG_CPU_ARCH_V7, ARM_ARCH_V7},
31619 {TAG_CPU_ARCH_V7, ARM_ARCH_V7A},
31620 {TAG_CPU_ARCH_V7, ARM_ARCH_V7R},
31621 {TAG_CPU_ARCH_V7, ARM_ARCH_V7M},
31622 {TAG_CPU_ARCH_V7, ARM_ARCH_V7VE},
31623 {TAG_CPU_ARCH_V7E_M, ARM_ARCH_V7EM},
31624 {TAG_CPU_ARCH_V8, ARM_ARCH_V8A},
31625 {TAG_CPU_ARCH_V8, ARM_ARCH_V8_1A},
31626 {TAG_CPU_ARCH_V8, ARM_ARCH_V8_2A},
31627 {TAG_CPU_ARCH_V8, ARM_ARCH_V8_3A},
31628 {TAG_CPU_ARCH_V8M_BASE, ARM_ARCH_V8M_BASE},
31629 {TAG_CPU_ARCH_V8M_MAIN, ARM_ARCH_V8M_MAIN},
31630 {TAG_CPU_ARCH_V8R, ARM_ARCH_V8R},
31631 {TAG_CPU_ARCH_V8, ARM_ARCH_V8_4A},
31632 {TAG_CPU_ARCH_V8, ARM_ARCH_V8_5A},
31633 {TAG_CPU_ARCH_V8_1M_MAIN, ARM_ARCH_V8_1M_MAIN},
31634 {-1, ARM_ARCH_NONE}
31637 /* Set an attribute if it has not already been set by the user. */
31640 aeabi_set_attribute_int (int tag, int value)
31643 || tag >= NUM_KNOWN_OBJ_ATTRIBUTES
31644 || !attributes_set_explicitly[tag])
31645 bfd_elf_add_proc_attr_int (stdoutput, tag, value);
31649 aeabi_set_attribute_string (int tag, const char *value)
31652 || tag >= NUM_KNOWN_OBJ_ATTRIBUTES
31653 || !attributes_set_explicitly[tag])
31654 bfd_elf_add_proc_attr_string (stdoutput, tag, value);
31657 /* Return whether features in the *NEEDED feature set are available via
31658 extensions for the architecture whose feature set is *ARCH_FSET. */
31661 have_ext_for_needed_feat_p (const arm_feature_set *arch_fset,
31662 const arm_feature_set *needed)
31664 int i, nb_allowed_archs;
31665 arm_feature_set ext_fset;
31666 const struct arm_option_extension_value_table *opt;
31668 ext_fset = arm_arch_none;
31669 for (opt = arm_extensions; opt->name != NULL; opt++)
31671 /* Extension does not provide any feature we need. */
31672 if (!ARM_CPU_HAS_FEATURE (*needed, opt->merge_value))
31676 sizeof (opt->allowed_archs) / sizeof (opt->allowed_archs[0]);
31677 for (i = 0; i < nb_allowed_archs; i++)
31680 if (ARM_FEATURE_EQUAL (opt->allowed_archs[i], arm_arch_any))
31683 /* Extension is available, add it. */
31684 if (ARM_FSET_CPU_SUBSET (opt->allowed_archs[i], *arch_fset))
31685 ARM_MERGE_FEATURE_SETS (ext_fset, ext_fset, opt->merge_value);
31689 /* Can we enable all features in *needed? */
31690 return ARM_FSET_CPU_SUBSET (*needed, ext_fset);
31693 /* Select value for Tag_CPU_arch and Tag_CPU_arch_profile build attributes for
31694 a given architecture feature set *ARCH_EXT_FSET including extension feature
31695 set *EXT_FSET. Selection logic used depend on EXACT_MATCH:
31696 - if true, check for an exact match of the architecture modulo extensions;
31697 - otherwise, select build attribute value of the first superset
31698 architecture released so that results remains stable when new architectures
31700 For -march/-mcpu=all the build attribute value of the most featureful
31701 architecture is returned. Tag_CPU_arch_profile result is returned in
31705 get_aeabi_cpu_arch_from_fset (const arm_feature_set *arch_ext_fset,
31706 const arm_feature_set *ext_fset,
31707 char *profile, int exact_match)
31709 arm_feature_set arch_fset;
31710 const cpu_arch_ver_table *p_ver, *p_ver_ret = NULL;
31712 /* Select most featureful architecture with all its extensions if building
31713 for -march=all as the feature sets used to set build attributes. */
31714 if (ARM_FEATURE_EQUAL (*arch_ext_fset, arm_arch_any))
31716 /* Force revisiting of decision for each new architecture. */
31717 gas_assert (MAX_TAG_CPU_ARCH <= TAG_CPU_ARCH_V8_1M_MAIN);
31719 return TAG_CPU_ARCH_V8;
31722 ARM_CLEAR_FEATURE (arch_fset, *arch_ext_fset, *ext_fset);
31724 for (p_ver = cpu_arch_ver; p_ver->val != -1; p_ver++)
31726 arm_feature_set known_arch_fset;
31728 ARM_CLEAR_FEATURE (known_arch_fset, p_ver->flags, fpu_any);
31731 /* Base architecture match user-specified architecture and
31732 extensions, eg. ARMv6S-M matching -march=armv6-m+os. */
31733 if (ARM_FEATURE_EQUAL (*arch_ext_fset, known_arch_fset))
31738 /* Base architecture match user-specified architecture only
31739 (eg. ARMv6-M in the same case as above). Record it in case we
31740 find a match with above condition. */
31741 else if (p_ver_ret == NULL
31742 && ARM_FEATURE_EQUAL (arch_fset, known_arch_fset))
31748 /* Architecture has all features wanted. */
31749 if (ARM_FSET_CPU_SUBSET (arch_fset, known_arch_fset))
31751 arm_feature_set added_fset;
31753 /* Compute features added by this architecture over the one
31754 recorded in p_ver_ret. */
31755 if (p_ver_ret != NULL)
31756 ARM_CLEAR_FEATURE (added_fset, known_arch_fset,
31758 /* First architecture that match incl. with extensions, or the
31759 only difference in features over the recorded match is
31760 features that were optional and are now mandatory. */
31761 if (p_ver_ret == NULL
31762 || ARM_FSET_CPU_SUBSET (added_fset, arch_fset))
31768 else if (p_ver_ret == NULL)
31770 arm_feature_set needed_ext_fset;
31772 ARM_CLEAR_FEATURE (needed_ext_fset, arch_fset, known_arch_fset);
31774 /* Architecture has all features needed when using some
31775 extensions. Record it and continue searching in case there
31776 exist an architecture providing all needed features without
31777 the need for extensions (eg. ARMv6S-M Vs ARMv6-M with
31779 if (have_ext_for_needed_feat_p (&known_arch_fset,
31786 if (p_ver_ret == NULL)
31790 /* Tag_CPU_arch_profile. */
31791 if (ARM_CPU_HAS_FEATURE (p_ver_ret->flags, arm_ext_v7a)
31792 || ARM_CPU_HAS_FEATURE (p_ver_ret->flags, arm_ext_v8)
31793 || (ARM_CPU_HAS_FEATURE (p_ver_ret->flags, arm_ext_atomics)
31794 && !ARM_CPU_HAS_FEATURE (p_ver_ret->flags, arm_ext_v8m_m_only)))
31796 else if (ARM_CPU_HAS_FEATURE (p_ver_ret->flags, arm_ext_v7r))
31798 else if (ARM_CPU_HAS_FEATURE (p_ver_ret->flags, arm_ext_m))
31802 return p_ver_ret->val;
31805 /* Set the public EABI object attributes. */
31808 aeabi_set_public_attributes (void)
31810 char profile = '\0';
31813 int fp16_optional = 0;
31814 int skip_exact_match = 0;
31815 arm_feature_set flags, flags_arch, flags_ext;
31817 /* Autodetection mode, choose the architecture based the instructions
31819 if (no_cpu_selected ())
31821 ARM_MERGE_FEATURE_SETS (flags, arm_arch_used, thumb_arch_used);
31823 if (ARM_CPU_HAS_FEATURE (arm_arch_used, arm_arch_any))
31824 ARM_MERGE_FEATURE_SETS (flags, flags, arm_ext_v1);
31826 if (ARM_CPU_HAS_FEATURE (thumb_arch_used, arm_arch_any))
31827 ARM_MERGE_FEATURE_SETS (flags, flags, arm_ext_v4t);
31829 /* Code run during relaxation relies on selected_cpu being set. */
31830 ARM_CLEAR_FEATURE (flags_arch, flags, fpu_any);
31831 flags_ext = arm_arch_none;
31832 ARM_CLEAR_FEATURE (selected_arch, flags_arch, flags_ext);
31833 selected_ext = flags_ext;
31834 selected_cpu = flags;
31836 /* Otherwise, choose the architecture based on the capabilities of the
31840 ARM_MERGE_FEATURE_SETS (flags_arch, selected_arch, selected_ext);
31841 ARM_CLEAR_FEATURE (flags_arch, flags_arch, fpu_any);
31842 flags_ext = selected_ext;
31843 flags = selected_cpu;
31845 ARM_MERGE_FEATURE_SETS (flags, flags, selected_fpu);
31847 /* Allow the user to override the reported architecture. */
31848 if (!ARM_FEATURE_ZERO (selected_object_arch))
31850 ARM_CLEAR_FEATURE (flags_arch, selected_object_arch, fpu_any);
31851 flags_ext = arm_arch_none;
31854 skip_exact_match = ARM_FEATURE_EQUAL (selected_cpu, arm_arch_any);
31856 /* When this function is run again after relaxation has happened there is no
31857 way to determine whether an architecture or CPU was specified by the user:
31858 - selected_cpu is set above for relaxation to work;
31859 - march_cpu_opt is not set if only -mcpu or .cpu is used;
31860 - mcpu_cpu_opt is set to arm_arch_any for autodetection.
31861 Therefore, if not in -march=all case we first try an exact match and fall
31862 back to autodetection. */
31863 if (!skip_exact_match)
31864 arch = get_aeabi_cpu_arch_from_fset (&flags_arch, &flags_ext, &profile, 1);
31866 arch = get_aeabi_cpu_arch_from_fset (&flags_arch, &flags_ext, &profile, 0);
31868 as_bad (_("no architecture contains all the instructions used\n"));
31870 /* Tag_CPU_name. */
31871 if (selected_cpu_name[0])
31875 q = selected_cpu_name;
31876 if (strncmp (q, "armv", 4) == 0)
31881 for (i = 0; q[i]; i++)
31882 q[i] = TOUPPER (q[i]);
31884 aeabi_set_attribute_string (Tag_CPU_name, q);
31887 /* Tag_CPU_arch. */
31888 aeabi_set_attribute_int (Tag_CPU_arch, arch);
31890 /* Tag_CPU_arch_profile. */
31891 if (profile != '\0')
31892 aeabi_set_attribute_int (Tag_CPU_arch_profile, profile);
31894 /* Tag_DSP_extension. */
31895 if (ARM_CPU_HAS_FEATURE (selected_ext, arm_ext_dsp))
31896 aeabi_set_attribute_int (Tag_DSP_extension, 1);
31898 ARM_CLEAR_FEATURE (flags_arch, flags, fpu_any);
31899 /* Tag_ARM_ISA_use. */
31900 if (ARM_CPU_HAS_FEATURE (flags, arm_ext_v1)
31901 || ARM_FEATURE_ZERO (flags_arch))
31902 aeabi_set_attribute_int (Tag_ARM_ISA_use, 1);
31904 /* Tag_THUMB_ISA_use. */
31905 if (ARM_CPU_HAS_FEATURE (flags, arm_ext_v4t)
31906 || ARM_FEATURE_ZERO (flags_arch))
31910 if (!ARM_CPU_HAS_FEATURE (flags, arm_ext_v8)
31911 && ARM_CPU_HAS_FEATURE (flags, arm_ext_v8m_m_only))
31913 else if (ARM_CPU_HAS_FEATURE (flags, arm_arch_t2))
31917 aeabi_set_attribute_int (Tag_THUMB_ISA_use, thumb_isa_use);
31920 /* Tag_VFP_arch. */
31921 if (ARM_CPU_HAS_FEATURE (flags, fpu_vfp_ext_armv8xd))
31922 aeabi_set_attribute_int (Tag_VFP_arch,
31923 ARM_CPU_HAS_FEATURE (flags, fpu_vfp_ext_d32)
31925 else if (ARM_CPU_HAS_FEATURE (flags, fpu_vfp_ext_fma))
31926 aeabi_set_attribute_int (Tag_VFP_arch,
31927 ARM_CPU_HAS_FEATURE (flags, fpu_vfp_ext_d32)
31929 else if (ARM_CPU_HAS_FEATURE (flags, fpu_vfp_ext_d32))
31932 aeabi_set_attribute_int (Tag_VFP_arch, 3);
31934 else if (ARM_CPU_HAS_FEATURE (flags, fpu_vfp_ext_v3xd))
31936 aeabi_set_attribute_int (Tag_VFP_arch, 4);
31939 else if (ARM_CPU_HAS_FEATURE (flags, fpu_vfp_ext_v2))
31940 aeabi_set_attribute_int (Tag_VFP_arch, 2);
31941 else if (ARM_CPU_HAS_FEATURE (flags, fpu_vfp_ext_v1)
31942 || ARM_CPU_HAS_FEATURE (flags, fpu_vfp_ext_v1xd))
31943 aeabi_set_attribute_int (Tag_VFP_arch, 1);
31945 /* Tag_ABI_HardFP_use. */
31946 if (ARM_CPU_HAS_FEATURE (flags, fpu_vfp_ext_v1xd)
31947 && !ARM_CPU_HAS_FEATURE (flags, fpu_vfp_ext_v1))
31948 aeabi_set_attribute_int (Tag_ABI_HardFP_use, 1);
31950 /* Tag_WMMX_arch. */
31951 if (ARM_CPU_HAS_FEATURE (flags, arm_cext_iwmmxt2))
31952 aeabi_set_attribute_int (Tag_WMMX_arch, 2);
31953 else if (ARM_CPU_HAS_FEATURE (flags, arm_cext_iwmmxt))
31954 aeabi_set_attribute_int (Tag_WMMX_arch, 1);
31956 /* Tag_Advanced_SIMD_arch (formerly Tag_NEON_arch). */
31957 if (ARM_CPU_HAS_FEATURE (flags, fpu_neon_ext_v8_1))
31958 aeabi_set_attribute_int (Tag_Advanced_SIMD_arch, 4);
31959 else if (ARM_CPU_HAS_FEATURE (flags, fpu_neon_ext_armv8))
31960 aeabi_set_attribute_int (Tag_Advanced_SIMD_arch, 3);
31961 else if (ARM_CPU_HAS_FEATURE (flags, fpu_neon_ext_v1))
31963 if (ARM_CPU_HAS_FEATURE (flags, fpu_neon_ext_fma))
31965 aeabi_set_attribute_int (Tag_Advanced_SIMD_arch, 2);
31969 aeabi_set_attribute_int (Tag_Advanced_SIMD_arch, 1);
31974 if (ARM_CPU_HAS_FEATURE (flags, mve_fp_ext))
31975 aeabi_set_attribute_int (Tag_MVE_arch, 2);
31976 else if (ARM_CPU_HAS_FEATURE (flags, mve_ext))
31977 aeabi_set_attribute_int (Tag_MVE_arch, 1);
31979 /* Tag_VFP_HP_extension (formerly Tag_NEON_FP16_arch). */
31980 if (ARM_CPU_HAS_FEATURE (flags, fpu_vfp_fp16) && fp16_optional)
31981 aeabi_set_attribute_int (Tag_VFP_HP_extension, 1);
31985 We set Tag_DIV_use to two when integer divide instructions have been used
31986 in ARM state, or when Thumb integer divide instructions have been used,
31987 but we have no architecture profile set, nor have we any ARM instructions.
31989 For ARMv8-A and ARMv8-M we set the tag to 0 as integer divide is implied
31990 by the base architecture.
31992 For new architectures we will have to check these tests. */
31993 gas_assert (arch <= TAG_CPU_ARCH_V8_1M_MAIN);
31994 if (ARM_CPU_HAS_FEATURE (flags, arm_ext_v8)
31995 || ARM_CPU_HAS_FEATURE (flags, arm_ext_v8m))
31996 aeabi_set_attribute_int (Tag_DIV_use, 0);
31997 else if (ARM_CPU_HAS_FEATURE (flags, arm_ext_adiv)
31998 || (profile == '\0'
31999 && ARM_CPU_HAS_FEATURE (flags, arm_ext_div)
32000 && !ARM_CPU_HAS_FEATURE (arm_arch_used, arm_arch_any)))
32001 aeabi_set_attribute_int (Tag_DIV_use, 2);
32003 /* Tag_MP_extension_use. */
32004 if (ARM_CPU_HAS_FEATURE (flags, arm_ext_mp))
32005 aeabi_set_attribute_int (Tag_MPextension_use, 1);
32007 /* Tag Virtualization_use. */
32008 if (ARM_CPU_HAS_FEATURE (flags, arm_ext_sec))
32010 if (ARM_CPU_HAS_FEATURE (flags, arm_ext_virt))
32013 aeabi_set_attribute_int (Tag_Virtualization_use, virt_sec);
32016 /* Post relaxation hook. Recompute ARM attributes now that relaxation is
32017 finished and free extension feature bits which will not be used anymore. */
32020 arm_md_post_relax (void)
32022 aeabi_set_public_attributes ();
32023 XDELETE (mcpu_ext_opt);
32024 mcpu_ext_opt = NULL;
32025 XDELETE (march_ext_opt);
32026 march_ext_opt = NULL;
32029 /* Add the default contents for the .ARM.attributes section. */
32034 if (EF_ARM_EABI_VERSION (meabi_flags) < EF_ARM_EABI_VER4)
32037 aeabi_set_public_attributes ();
32039 #endif /* OBJ_ELF */
32041 /* Parse a .cpu directive. */
32044 s_arm_cpu (int ignored ATTRIBUTE_UNUSED)
32046 const struct arm_cpu_option_table *opt;
32050 name = input_line_pointer;
32051 while (*input_line_pointer && !ISSPACE (*input_line_pointer))
32052 input_line_pointer++;
32053 saved_char = *input_line_pointer;
32054 *input_line_pointer = 0;
32056 /* Skip the first "all" entry. */
32057 for (opt = arm_cpus + 1; opt->name != NULL; opt++)
32058 if (streq (opt->name, name))
32060 selected_arch = opt->value;
32061 selected_ext = opt->ext;
32062 ARM_MERGE_FEATURE_SETS (selected_cpu, selected_arch, selected_ext);
32063 if (opt->canonical_name)
32064 strcpy (selected_cpu_name, opt->canonical_name);
32068 for (i = 0; opt->name[i]; i++)
32069 selected_cpu_name[i] = TOUPPER (opt->name[i]);
32071 selected_cpu_name[i] = 0;
32073 ARM_MERGE_FEATURE_SETS (cpu_variant, selected_cpu, selected_fpu);
32075 *input_line_pointer = saved_char;
32076 demand_empty_rest_of_line ();
32079 as_bad (_("unknown cpu `%s'"), name);
32080 *input_line_pointer = saved_char;
32081 ignore_rest_of_line ();
32084 /* Parse a .arch directive. */
32087 s_arm_arch (int ignored ATTRIBUTE_UNUSED)
32089 const struct arm_arch_option_table *opt;
32093 name = input_line_pointer;
32094 while (*input_line_pointer && !ISSPACE (*input_line_pointer))
32095 input_line_pointer++;
32096 saved_char = *input_line_pointer;
32097 *input_line_pointer = 0;
32099 /* Skip the first "all" entry. */
32100 for (opt = arm_archs + 1; opt->name != NULL; opt++)
32101 if (streq (opt->name, name))
32103 selected_arch = opt->value;
32104 selected_ext = arm_arch_none;
32105 selected_cpu = selected_arch;
32106 strcpy (selected_cpu_name, opt->name);
32107 ARM_MERGE_FEATURE_SETS (cpu_variant, selected_cpu, selected_fpu);
32108 *input_line_pointer = saved_char;
32109 demand_empty_rest_of_line ();
32113 as_bad (_("unknown architecture `%s'\n"), name);
32114 *input_line_pointer = saved_char;
32115 ignore_rest_of_line ();
32118 /* Parse a .object_arch directive. */
32121 s_arm_object_arch (int ignored ATTRIBUTE_UNUSED)
32123 const struct arm_arch_option_table *opt;
32127 name = input_line_pointer;
32128 while (*input_line_pointer && !ISSPACE (*input_line_pointer))
32129 input_line_pointer++;
32130 saved_char = *input_line_pointer;
32131 *input_line_pointer = 0;
32133 /* Skip the first "all" entry. */
32134 for (opt = arm_archs + 1; opt->name != NULL; opt++)
32135 if (streq (opt->name, name))
32137 selected_object_arch = opt->value;
32138 *input_line_pointer = saved_char;
32139 demand_empty_rest_of_line ();
32143 as_bad (_("unknown architecture `%s'\n"), name);
32144 *input_line_pointer = saved_char;
32145 ignore_rest_of_line ();
32148 /* Parse a .arch_extension directive. */
32151 s_arm_arch_extension (int ignored ATTRIBUTE_UNUSED)
32153 const struct arm_option_extension_value_table *opt;
32156 int adding_value = 1;
32158 name = input_line_pointer;
32159 while (*input_line_pointer && !ISSPACE (*input_line_pointer))
32160 input_line_pointer++;
32161 saved_char = *input_line_pointer;
32162 *input_line_pointer = 0;
32164 if (strlen (name) >= 2
32165 && strncmp (name, "no", 2) == 0)
32171 for (opt = arm_extensions; opt->name != NULL; opt++)
32172 if (streq (opt->name, name))
32174 int i, nb_allowed_archs =
32175 sizeof (opt->allowed_archs) / sizeof (opt->allowed_archs[i]);
32176 for (i = 0; i < nb_allowed_archs; i++)
32179 if (ARM_CPU_IS_ANY (opt->allowed_archs[i]))
32181 if (ARM_FSET_CPU_SUBSET (opt->allowed_archs[i], selected_arch))
32185 if (i == nb_allowed_archs)
32187 as_bad (_("architectural extension `%s' is not allowed for the "
32188 "current base architecture"), name);
32193 ARM_MERGE_FEATURE_SETS (selected_ext, selected_ext,
32196 ARM_CLEAR_FEATURE (selected_ext, selected_ext, opt->clear_value);
32198 ARM_MERGE_FEATURE_SETS (selected_cpu, selected_arch, selected_ext);
32199 ARM_MERGE_FEATURE_SETS (cpu_variant, selected_cpu, selected_fpu);
32200 *input_line_pointer = saved_char;
32201 demand_empty_rest_of_line ();
32202 /* Allowing Thumb division instructions for ARMv7 in autodetection rely
32203 on this return so that duplicate extensions (extensions with the
32204 same name as a previous extension in the list) are not considered
32205 for command-line parsing. */
32209 if (opt->name == NULL)
32210 as_bad (_("unknown architecture extension `%s'\n"), name);
32212 *input_line_pointer = saved_char;
32213 ignore_rest_of_line ();
32216 /* Parse a .fpu directive. */
32219 s_arm_fpu (int ignored ATTRIBUTE_UNUSED)
32221 const struct arm_option_fpu_value_table *opt;
32225 name = input_line_pointer;
32226 while (*input_line_pointer && !ISSPACE (*input_line_pointer))
32227 input_line_pointer++;
32228 saved_char = *input_line_pointer;
32229 *input_line_pointer = 0;
32231 for (opt = arm_fpus; opt->name != NULL; opt++)
32232 if (streq (opt->name, name))
32234 selected_fpu = opt->value;
32235 #ifndef CPU_DEFAULT
32236 if (no_cpu_selected ())
32237 ARM_MERGE_FEATURE_SETS (cpu_variant, arm_arch_any, selected_fpu);
32240 ARM_MERGE_FEATURE_SETS (cpu_variant, selected_cpu, selected_fpu);
32241 *input_line_pointer = saved_char;
32242 demand_empty_rest_of_line ();
32246 as_bad (_("unknown floating point format `%s'\n"), name);
32247 *input_line_pointer = saved_char;
32248 ignore_rest_of_line ();
32251 /* Copy symbol information. */
32254 arm_copy_symbol_attributes (symbolS *dest, symbolS *src)
32256 ARM_GET_FLAG (dest) = ARM_GET_FLAG (src);
32260 /* Given a symbolic attribute NAME, return the proper integer value.
32261 Returns -1 if the attribute is not known. */
32264 arm_convert_symbolic_attribute (const char *name)
32266 static const struct
32271 attribute_table[] =
32273 /* When you modify this table you should
32274 also modify the list in doc/c-arm.texi. */
32275 #define T(tag) {#tag, tag}
32276 T (Tag_CPU_raw_name),
32279 T (Tag_CPU_arch_profile),
32280 T (Tag_ARM_ISA_use),
32281 T (Tag_THUMB_ISA_use),
32285 T (Tag_Advanced_SIMD_arch),
32286 T (Tag_PCS_config),
32287 T (Tag_ABI_PCS_R9_use),
32288 T (Tag_ABI_PCS_RW_data),
32289 T (Tag_ABI_PCS_RO_data),
32290 T (Tag_ABI_PCS_GOT_use),
32291 T (Tag_ABI_PCS_wchar_t),
32292 T (Tag_ABI_FP_rounding),
32293 T (Tag_ABI_FP_denormal),
32294 T (Tag_ABI_FP_exceptions),
32295 T (Tag_ABI_FP_user_exceptions),
32296 T (Tag_ABI_FP_number_model),
32297 T (Tag_ABI_align_needed),
32298 T (Tag_ABI_align8_needed),
32299 T (Tag_ABI_align_preserved),
32300 T (Tag_ABI_align8_preserved),
32301 T (Tag_ABI_enum_size),
32302 T (Tag_ABI_HardFP_use),
32303 T (Tag_ABI_VFP_args),
32304 T (Tag_ABI_WMMX_args),
32305 T (Tag_ABI_optimization_goals),
32306 T (Tag_ABI_FP_optimization_goals),
32307 T (Tag_compatibility),
32308 T (Tag_CPU_unaligned_access),
32309 T (Tag_FP_HP_extension),
32310 T (Tag_VFP_HP_extension),
32311 T (Tag_ABI_FP_16bit_format),
32312 T (Tag_MPextension_use),
32314 T (Tag_nodefaults),
32315 T (Tag_also_compatible_with),
32316 T (Tag_conformance),
32318 T (Tag_Virtualization_use),
32319 T (Tag_DSP_extension),
32321 /* We deliberately do not include Tag_MPextension_use_legacy. */
32329 for (i = 0; i < ARRAY_SIZE (attribute_table); i++)
32330 if (streq (name, attribute_table[i].name))
32331 return attribute_table[i].tag;
32336 /* Apply sym value for relocations only in the case that they are for
32337 local symbols in the same segment as the fixup and you have the
32338 respective architectural feature for blx and simple switches. */
32341 arm_apply_sym_value (struct fix * fixP, segT this_seg)
32344 && ARM_CPU_HAS_FEATURE (selected_cpu, arm_ext_v5t)
32345 /* PR 17444: If the local symbol is in a different section then a reloc
32346 will always be generated for it, so applying the symbol value now
32347 will result in a double offset being stored in the relocation. */
32348 && (S_GET_SEGMENT (fixP->fx_addsy) == this_seg)
32349 && !S_FORCE_RELOC (fixP->fx_addsy, TRUE))
32351 switch (fixP->fx_r_type)
32353 case BFD_RELOC_ARM_PCREL_BLX:
32354 case BFD_RELOC_THUMB_PCREL_BRANCH23:
32355 if (ARM_IS_FUNC (fixP->fx_addsy))
32359 case BFD_RELOC_ARM_PCREL_CALL:
32360 case BFD_RELOC_THUMB_PCREL_BLX:
32361 if (THUMB_IS_FUNC (fixP->fx_addsy))
32372 #endif /* OBJ_ELF */