1 /* Definitions for code generation pass of GNU compiler.
2 Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006
3 Free Software Foundation, Inc.
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GCC is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING. If not, write to
19 the Free Software Foundation, 51 Franklin Street, Fifth Floor,
20 Boston, MA 02110-1301, USA. */
25 #include "insn-codes.h"
27 /* Optabs are tables saying how to generate insn bodies
28 for various machine modes and numbers of operands.
29 Each optab applies to one operation.
30 For example, add_optab applies to addition.
32 The insn_code slot is the enum insn_code that says how to
33 generate an insn for this operation on a particular machine mode.
34 It is CODE_FOR_nothing if there is no such insn on the target machine.
36 The `lib_call' slot is the name of the library function that
37 can be used to perform the operation.
39 A few optabs, such as move_optab and cmp_optab, are used
42 struct optab_handlers GTY(())
44 enum insn_code insn_code;
51 struct optab_handlers handlers[NUM_MACHINE_MODES];
53 typedef struct optab * optab;
55 /* A convert_optab is for some sort of conversion operation between
56 modes. The first array index is the destination mode, the second
57 is the source mode. */
58 struct convert_optab GTY(())
61 struct optab_handlers handlers[NUM_MACHINE_MODES][NUM_MACHINE_MODES];
63 typedef struct convert_optab *convert_optab;
65 /* Given an enum insn_code, access the function to construct
66 the body of that kind of insn. */
67 #define GEN_FCN(CODE) (insn_data[CODE].genfun)
69 /* Enumeration of valid indexes into optab_table. */
77 /* Signed and fp multiply */
80 /* Signed multiply, return high word */
83 /* Signed multiply with result one machine mode wider than args */
86 /* Widening multiply of one unsigned and one signed operand. */
92 /* Signed divide-and-remainder in one */
96 /* Signed remainder */
99 /* Floating point remainder functions */
102 /* Convert float to integer in float fmt */
112 /* Arithmetic shift left */
114 /* Logical shift right */
116 /* Arithmetic shift right */
122 /* Signed and floating-point minimum value */
124 /* Signed and floating-point maximum value */
126 /* Unsigned minimum value */
128 /* Unsigned maximum value */
132 /* Arc tangent of y/x */
135 /* Move instruction. */
137 /* Move, preserving high part of register. */
139 /* Move, with a misaligned memory. */
142 /* Unary operations */
151 /* Bit scanning and counting */
171 /* Base-10 Exponential */
173 /* Base-2 Exponential */
177 /* Load exponent of a floating point number */
179 /* Radix-independent exponent */
182 /* Natural Logarithm */
184 /* Base-10 Logarithm */
186 /* Base-2 Logarithm */
188 /* logarithm of 1 plus argument */
190 /* Rounding functions */
201 /* Inverse tangent */
206 /* Compare insn; two operands. */
208 /* Used only for libcalls for unsigned comparisons. */
210 /* tst insn; compare one operand against 0 */
213 /* Floating point comparison optabs - used primarily for libfuncs */
225 /* Combined compare & jump/store flags/move operations. */
230 /* Push instruction. */
233 /* Conditional add instruction. */
236 /* Reduction operations on a vector operand. */
244 /* Summation, with result machine mode one or more wider than args. */
248 /* Dot product, with result machine mode one or more wider than args. */
252 /* Set specified field of vector operand. */
254 /* Extract specified field of vector operand. */
256 /* Initialize vector operand. */
258 /* Whole vector shift. The shift amount is in bits. */
261 /* Extract specified elements from vectors, for vector load. */
262 OTI_vec_realign_load,
264 /* Perform a raise to the power of integer. */
270 extern GTY(()) optab optab_table[OTI_MAX];
272 #define add_optab (optab_table[OTI_add])
273 #define sub_optab (optab_table[OTI_sub])
274 #define smul_optab (optab_table[OTI_smul])
275 #define addv_optab (optab_table[OTI_addv])
276 #define subv_optab (optab_table[OTI_subv])
277 #define smul_highpart_optab (optab_table[OTI_smul_highpart])
278 #define umul_highpart_optab (optab_table[OTI_umul_highpart])
279 #define smul_widen_optab (optab_table[OTI_smul_widen])
280 #define umul_widen_optab (optab_table[OTI_umul_widen])
281 #define usmul_widen_optab (optab_table[OTI_usmul_widen])
282 #define sdiv_optab (optab_table[OTI_sdiv])
283 #define smulv_optab (optab_table[OTI_smulv])
284 #define sdivv_optab (optab_table[OTI_sdivv])
285 #define sdivmod_optab (optab_table[OTI_sdivmod])
286 #define udiv_optab (optab_table[OTI_udiv])
287 #define udivmod_optab (optab_table[OTI_udivmod])
288 #define smod_optab (optab_table[OTI_smod])
289 #define umod_optab (optab_table[OTI_umod])
290 #define fmod_optab (optab_table[OTI_fmod])
291 #define remainder_optab (optab_table[OTI_remainder])
292 #define ftrunc_optab (optab_table[OTI_ftrunc])
293 #define and_optab (optab_table[OTI_and])
294 #define ior_optab (optab_table[OTI_ior])
295 #define xor_optab (optab_table[OTI_xor])
296 #define ashl_optab (optab_table[OTI_ashl])
297 #define lshr_optab (optab_table[OTI_lshr])
298 #define ashr_optab (optab_table[OTI_ashr])
299 #define rotl_optab (optab_table[OTI_rotl])
300 #define rotr_optab (optab_table[OTI_rotr])
301 #define smin_optab (optab_table[OTI_smin])
302 #define smax_optab (optab_table[OTI_smax])
303 #define umin_optab (optab_table[OTI_umin])
304 #define umax_optab (optab_table[OTI_umax])
305 #define pow_optab (optab_table[OTI_pow])
306 #define atan2_optab (optab_table[OTI_atan2])
308 #define mov_optab (optab_table[OTI_mov])
309 #define movstrict_optab (optab_table[OTI_movstrict])
310 #define movmisalign_optab (optab_table[OTI_movmisalign])
312 #define neg_optab (optab_table[OTI_neg])
313 #define negv_optab (optab_table[OTI_negv])
314 #define abs_optab (optab_table[OTI_abs])
315 #define absv_optab (optab_table[OTI_absv])
316 #define one_cmpl_optab (optab_table[OTI_one_cmpl])
317 #define ffs_optab (optab_table[OTI_ffs])
318 #define clz_optab (optab_table[OTI_clz])
319 #define ctz_optab (optab_table[OTI_ctz])
320 #define popcount_optab (optab_table[OTI_popcount])
321 #define parity_optab (optab_table[OTI_parity])
322 #define sqrt_optab (optab_table[OTI_sqrt])
323 #define sincos_optab (optab_table[OTI_sincos])
324 #define sin_optab (optab_table[OTI_sin])
325 #define asin_optab (optab_table[OTI_asin])
326 #define cos_optab (optab_table[OTI_cos])
327 #define acos_optab (optab_table[OTI_acos])
328 #define exp_optab (optab_table[OTI_exp])
329 #define exp10_optab (optab_table[OTI_exp10])
330 #define exp2_optab (optab_table[OTI_exp2])
331 #define expm1_optab (optab_table[OTI_expm1])
332 #define ldexp_optab (optab_table[OTI_ldexp])
333 #define logb_optab (optab_table[OTI_logb])
334 #define ilogb_optab (optab_table[OTI_ilogb])
335 #define log_optab (optab_table[OTI_log])
336 #define log10_optab (optab_table[OTI_log10])
337 #define log2_optab (optab_table[OTI_log2])
338 #define log1p_optab (optab_table[OTI_log1p])
339 #define floor_optab (optab_table[OTI_floor])
340 #define lfloor_optab (optab_table[OTI_lfloor])
341 #define ceil_optab (optab_table[OTI_ceil])
342 #define lceil_optab (optab_table[OTI_lceil])
343 #define btrunc_optab (optab_table[OTI_btrunc])
344 #define round_optab (optab_table[OTI_round])
345 #define nearbyint_optab (optab_table[OTI_nearbyint])
346 #define rint_optab (optab_table[OTI_rint])
347 #define tan_optab (optab_table[OTI_tan])
348 #define atan_optab (optab_table[OTI_atan])
349 #define copysign_optab (optab_table[OTI_copysign])
351 #define cmp_optab (optab_table[OTI_cmp])
352 #define ucmp_optab (optab_table[OTI_ucmp])
353 #define tst_optab (optab_table[OTI_tst])
355 #define eq_optab (optab_table[OTI_eq])
356 #define ne_optab (optab_table[OTI_ne])
357 #define gt_optab (optab_table[OTI_gt])
358 #define ge_optab (optab_table[OTI_ge])
359 #define lt_optab (optab_table[OTI_lt])
360 #define le_optab (optab_table[OTI_le])
361 #define unord_optab (optab_table[OTI_unord])
363 #define strlen_optab (optab_table[OTI_strlen])
365 #define cbranch_optab (optab_table[OTI_cbranch])
366 #define cmov_optab (optab_table[OTI_cmov])
367 #define cstore_optab (optab_table[OTI_cstore])
368 #define push_optab (optab_table[OTI_push])
369 #define addcc_optab (optab_table[OTI_addcc])
371 #define reduc_smax_optab (optab_table[OTI_reduc_smax])
372 #define reduc_umax_optab (optab_table[OTI_reduc_umax])
373 #define reduc_smin_optab (optab_table[OTI_reduc_smin])
374 #define reduc_umin_optab (optab_table[OTI_reduc_umin])
375 #define reduc_splus_optab (optab_table[OTI_reduc_splus])
376 #define reduc_uplus_optab (optab_table[OTI_reduc_uplus])
378 #define ssum_widen_optab (optab_table[OTI_ssum_widen])
379 #define usum_widen_optab (optab_table[OTI_usum_widen])
380 #define sdot_prod_optab (optab_table[OTI_sdot_prod])
381 #define udot_prod_optab (optab_table[OTI_udot_prod])
383 #define vec_set_optab (optab_table[OTI_vec_set])
384 #define vec_extract_optab (optab_table[OTI_vec_extract])
385 #define vec_init_optab (optab_table[OTI_vec_init])
386 #define vec_shl_optab (optab_table[OTI_vec_shl])
387 #define vec_shr_optab (optab_table[OTI_vec_shr])
388 #define vec_realign_load_optab (optab_table[OTI_vec_realign_load])
390 #define powi_optab (optab_table[OTI_powi])
392 /* Conversion optabs have their own table and indexes. */
393 enum convert_optab_index
413 extern GTY(()) convert_optab convert_optab_table[COI_MAX];
415 #define sext_optab (convert_optab_table[COI_sext])
416 #define zext_optab (convert_optab_table[COI_zext])
417 #define trunc_optab (convert_optab_table[COI_trunc])
418 #define sfix_optab (convert_optab_table[COI_sfix])
419 #define ufix_optab (convert_optab_table[COI_ufix])
420 #define sfixtrunc_optab (convert_optab_table[COI_sfixtrunc])
421 #define ufixtrunc_optab (convert_optab_table[COI_ufixtrunc])
422 #define sfloat_optab (convert_optab_table[COI_sfloat])
423 #define ufloat_optab (convert_optab_table[COI_ufloat])
424 #define lrint_optab (convert_optab_table[COI_lrint])
426 /* These arrays record the insn_code of insns that may be needed to
427 perform input and output reloads of special objects. They provide a
428 place to pass a scratch register. */
429 extern enum insn_code reload_in_optab[NUM_MACHINE_MODES];
430 extern enum insn_code reload_out_optab[NUM_MACHINE_MODES];
432 /* Contains the optab used for each rtx code. */
433 extern GTY(()) optab code_to_optab[NUM_RTX_CODE + 1];
436 typedef rtx (*rtxfun) (rtx);
438 /* Indexed by the rtx-code for a conditional (e.g. EQ, LT,...)
439 gives the gen_function to make a branch to test that condition. */
441 extern rtxfun bcc_gen_fctn[NUM_RTX_CODE];
443 /* Indexed by the rtx-code for a conditional (e.g. EQ, LT,...)
444 gives the insn code to make a store-condition insn
445 to test that condition. */
447 extern enum insn_code setcc_gen_code[NUM_RTX_CODE];
449 #ifdef HAVE_conditional_move
450 /* Indexed by the machine mode, gives the insn code to make a conditional
453 extern enum insn_code movcc_gen_code[NUM_MACHINE_MODES];
456 /* Indexed by the machine mode, gives the insn code for vector conditional
459 extern enum insn_code vcond_gen_code[NUM_MACHINE_MODES];
460 extern enum insn_code vcondu_gen_code[NUM_MACHINE_MODES];
462 /* This array records the insn_code of insns to perform block moves. */
463 extern enum insn_code movmem_optab[NUM_MACHINE_MODES];
465 /* This array records the insn_code of insns to perform block sets. */
466 extern enum insn_code setmem_optab[NUM_MACHINE_MODES];
468 /* These arrays record the insn_code of two different kinds of insns
469 to perform block compares. */
470 extern enum insn_code cmpstr_optab[NUM_MACHINE_MODES];
471 extern enum insn_code cmpstrn_optab[NUM_MACHINE_MODES];
472 extern enum insn_code cmpmem_optab[NUM_MACHINE_MODES];
474 /* Synchronization primitives. This first set is atomic operation for
475 which we don't care about the resulting value. */
476 extern enum insn_code sync_add_optab[NUM_MACHINE_MODES];
477 extern enum insn_code sync_sub_optab[NUM_MACHINE_MODES];
478 extern enum insn_code sync_ior_optab[NUM_MACHINE_MODES];
479 extern enum insn_code sync_and_optab[NUM_MACHINE_MODES];
480 extern enum insn_code sync_xor_optab[NUM_MACHINE_MODES];
481 extern enum insn_code sync_nand_optab[NUM_MACHINE_MODES];
483 /* This second set is atomic operations in which we return the value
484 that existed in memory before the operation. */
485 extern enum insn_code sync_old_add_optab[NUM_MACHINE_MODES];
486 extern enum insn_code sync_old_sub_optab[NUM_MACHINE_MODES];
487 extern enum insn_code sync_old_ior_optab[NUM_MACHINE_MODES];
488 extern enum insn_code sync_old_and_optab[NUM_MACHINE_MODES];
489 extern enum insn_code sync_old_xor_optab[NUM_MACHINE_MODES];
490 extern enum insn_code sync_old_nand_optab[NUM_MACHINE_MODES];
492 /* This third set is atomic operations in which we return the value
493 that resulted after performing the operation. */
494 extern enum insn_code sync_new_add_optab[NUM_MACHINE_MODES];
495 extern enum insn_code sync_new_sub_optab[NUM_MACHINE_MODES];
496 extern enum insn_code sync_new_ior_optab[NUM_MACHINE_MODES];
497 extern enum insn_code sync_new_and_optab[NUM_MACHINE_MODES];
498 extern enum insn_code sync_new_xor_optab[NUM_MACHINE_MODES];
499 extern enum insn_code sync_new_nand_optab[NUM_MACHINE_MODES];
501 /* Atomic compare and swap. */
502 extern enum insn_code sync_compare_and_swap[NUM_MACHINE_MODES];
503 extern enum insn_code sync_compare_and_swap_cc[NUM_MACHINE_MODES];
505 /* Atomic exchange with acquire semantics. */
506 extern enum insn_code sync_lock_test_and_set[NUM_MACHINE_MODES];
508 /* Atomic clear with release semantics. */
509 extern enum insn_code sync_lock_release[NUM_MACHINE_MODES];
511 /* Define functions given in optabs.c. */
513 extern rtx expand_widen_pattern_expr (tree exp, rtx op0, rtx op1, rtx wide_op,
514 rtx target, int unsignedp);
516 extern rtx expand_ternary_op (enum machine_mode mode, optab ternary_optab,
517 rtx op0, rtx op1, rtx op2, rtx target,
520 /* Expand a binary operation given optab and rtx operands. */
521 extern rtx expand_binop (enum machine_mode, optab, rtx, rtx, rtx, int,
524 extern bool force_expand_binop (enum machine_mode, optab, rtx, rtx, rtx, int,
527 /* Expand a binary operation with both signed and unsigned forms. */
528 extern rtx sign_expand_binop (enum machine_mode, optab, optab, rtx, rtx,
529 rtx, int, enum optab_methods);
531 /* Generate code to perform an operation on one operand with two results. */
532 extern int expand_twoval_unop (optab, rtx, rtx, rtx, int);
534 /* Generate code to perform an operation on two operands with two results. */
535 extern int expand_twoval_binop (optab, rtx, rtx, rtx, rtx, int);
537 /* Generate code to perform an operation on two operands with two
538 results, using a library function. */
539 extern bool expand_twoval_binop_libfunc (optab, rtx, rtx, rtx, rtx,
542 /* Expand a unary arithmetic operation given optab rtx operand. */
543 extern rtx expand_unop (enum machine_mode, optab, rtx, rtx, int);
545 /* Expand the absolute value operation. */
546 extern rtx expand_abs_nojump (enum machine_mode, rtx, rtx, int);
547 extern rtx expand_abs (enum machine_mode, rtx, rtx, int, int);
549 /* Expand the copysign operation. */
550 extern rtx expand_copysign (rtx, rtx, rtx);
552 /* Generate an instruction with a given INSN_CODE with an output and
554 extern void emit_unop_insn (int, rtx, rtx, enum rtx_code);
556 /* Emit code to perform a series of operations on a multi-word quantity, one
558 extern rtx emit_no_conflict_block (rtx, rtx, rtx, rtx, rtx);
560 /* Emit one rtl insn to compare two rtx's. */
561 extern void emit_cmp_insn (rtx, rtx, enum rtx_code, rtx, enum machine_mode,
564 /* The various uses that a comparison can have; used by can_compare_p:
565 jumps, conditional moves, store flag operations. */
566 enum can_compare_purpose
573 /* Return the optab used for computing the given operation on the type
574 given by the second argument. */
575 extern optab optab_for_tree_code (enum tree_code, tree);
577 /* Nonzero if a compare of mode MODE can be done straightforwardly
578 (without splitting it into pieces). */
579 extern int can_compare_p (enum rtx_code, enum machine_mode,
580 enum can_compare_purpose);
582 /* Return the INSN_CODE to use for an extend operation. */
583 extern enum insn_code can_extend_p (enum machine_mode, enum machine_mode, int);
585 /* Generate the body of an insn to extend Y (with mode MFROM)
586 into X (with mode MTO). Do zero-extension if UNSIGNEDP is nonzero. */
587 extern rtx gen_extend_insn (rtx, rtx, enum machine_mode,
588 enum machine_mode, int);
590 /* Call this to reset the function entry for one optab. */
591 extern void set_optab_libfunc (optab, enum machine_mode, const char *);
592 extern void set_conv_libfunc (convert_optab, enum machine_mode,
593 enum machine_mode, const char *);
595 /* Generate code for a FLOAT_EXPR. */
596 extern void expand_float (rtx, rtx, int);
598 /* Generate code for a FIX_EXPR. */
599 extern void expand_fix (rtx, rtx, int);
601 /* Generate code for float to integral conversion. */
602 extern bool expand_sfix_optab (rtx, rtx, convert_optab);
604 /* Return tree if target supports vector operations for COND_EXPR. */
605 bool expand_vec_cond_expr_p (tree, enum machine_mode);
607 /* Generate code for VEC_COND_EXPR. */
608 extern rtx expand_vec_cond_expr (tree, rtx);
610 /* Generate code for VEC_LSHIFT_EXPR and VEC_RSHIFT_EXPR. */
611 extern rtx expand_vec_shift_expr (tree, rtx);
613 #endif /* GCC_OPTABS_H */