Daily bump.
[platform/upstream/gcc.git] / gcc / ChangeLog
1 2021-08-05  H.J. Lu  <hjl.tools@gmail.com>
2
3         PR target/99744
4         * config/i386/i386.c (ix86_can_inline_p): Ignore MASK_80387 if
5         callee only uses GPRs.
6         * config/i386/ia32intrin.h: Revert commit 5463cee2770.
7         * config/i386/serializeintrin.h: Revert commit 71958f740f1.
8         * config/i386/x86gprintrin.h: Add
9         #pragma GCC target("general-regs-only") and #pragma GCC pop_options
10         to disable non-GPR ISAs.
11
12 2021-08-05  Richard Sandiford  <richard.sandiford@arm.com>
13
14         PR middle-end/101787
15         * doc/md.texi (cond_ashl, cond_ashr, cond_lshr): Document.
16
17 2021-08-05  Richard Sandiford  <richard.sandiford@arm.com>
18
19         * tree-vectorizer.h (vect_is_store_elt_extraction, vect_is_reduction)
20         (vect_reduc_type, vect_embedded_comparison_type, vect_comparison_type)
21         (vect_is_extending_load, vect_is_integer_truncation): New functions,
22         moved from aarch64.c but given different names.
23         * config/aarch64/aarch64.c (aarch64_is_store_elt_extraction)
24         (aarch64_is_reduction, aarch64_reduc_type)
25         (aarch64_embedded_comparison_type, aarch64_comparison_type)
26         (aarch64_extending_load_p, aarch64_integer_truncation_p): Delete
27         in favor of the above.  Update callers accordingly.
28
29 2021-08-05  Richard Earnshaw  <rearnsha@arm.com>
30
31         PR target/101723
32         * config/arm/arm-cpus.in (generic-armv7-a): Add quirk to suppress
33         writing .cpu directive in asm output.
34         * config/arm/arm.c (arm_identify_fpu_from_isa): New variable.
35         (arm_last_printed_arch_string): Delete.
36         (arm_last-printed_fpu_string): Delete.
37         (arm_configure_build_target): If use of floating-point/SIMD is
38         disabled, remove all fp/simd related features from the target ISA.
39         (last_arm_targ_options): New variable.
40         (arm_print_asm_arch_directives): Add new parameters.  Change order
41         of emitted directives and handle all cases here.
42         (arm_file_start): Always call arm_print_asm_arch_directives, move
43         all generation of .arch/.arch_extension here.
44         (arm_file_end): Call arm_print_asm_arch.
45         (arm_declare_function_name): Call arm_print_asm_arch_directives
46         instead of printing .arch/.fpu directives directly.
47
48 2021-08-05  Richard Earnshaw  <rearnsha@arm.com>
49
50         * config/arm/arm.c (arm_configure_build_target): Don't call
51         arm_option_reconfigure_globals.
52         (arm_option_restore): Call arm_option_reconfigure_globals after
53         reconfiguring the target.
54         * config/arm/arm-c.c (arm_pragma_target_parse): Likewise.
55
56 2021-08-05  Richard Earnshaw  <rearnsha@arm.com>
57
58         * config/arm/arm.c (arm_configure_build_target): Ensure the target's
59         arch_name is always set.
60
61 2021-08-05  Jonathan Wright  <jonathan.wright@arm.com>
62
63         * config/aarch64/aarch64.c: Traverse RTL tree to prevent cost
64         of vec_select high-half from being added into Neon subtract
65         cost.
66
67 2021-08-05  Jonathan Wright  <jonathan.wright@arm.com>
68
69         * config/aarch64/aarch64.c: Traverse RTL tree to prevent cost
70         of vec_select high-half from being added into Neon add cost.
71
72 2021-08-05  Kewen Lin  <linkw@linux.ibm.com>
73
74         * cfgloop.h (loops_list::loops_list): Add one optional argument
75         root and adjust accordingly, update loop tree walking and factor
76         out to ...
77         * cfgloop.c (loops_list::walk_loop_tree): ... this.  New function.
78
79 2021-08-05  Eric Botcazou  <ebotcazou@gcc.gnu.org>
80
81         PR tree-optimization/101626
82         * tree-sra.c (propagate_subaccesses_from_rhs): Do not set the
83         reverse scalar storage order on a pointer or vector component.
84
85 2021-08-05  liuhongt  <hongtao.liu@intel.com>
86
87         * config/i386/sse.md (cond_<code><mode>): New expander.
88
89 2021-08-05  liuhongt  <hongtao.liu@intel.com>
90
91         * config/i386/sse.md (cond_<code><mode>): New expander.
92
93 2021-08-05  liuhongt  <hongtao.liu@intel.com>
94
95         * config/i386/sse.md (cond_<code><mode>): New expander.
96
97 2021-08-04  David Malcolm  <dmalcolm@redhat.com>
98
99         PR analyzer/101570
100         * Makefile.in (ANALYZER_OBJS): Add analyzer/region-model-asm.o.
101
102 2021-08-04  H.J. Lu  <hjl.tools@gmail.com>
103
104         PR target/101742
105         * config/i386/i386.h (STORE_MAX_PIECES): Allow 16/32/64 bytes
106         only if TARGET_INTER_UNIT_MOVES_TO_VEC is true.
107
108 2021-08-04  H.J. Lu  <hjl.tools@gmail.com>
109
110         PR target/101772
111         * config/i386/i386-expand.c (ix86_expand_vector_move): Call
112         ix86_gen_scratch_sse_rtx to get a scratch SSE register to copy
113         data with SSE register from one memory location to another.
114
115 2021-08-04  Andreas Krebbel  <krebbel@linux.ibm.com>
116
117         * config/s390/s390.c (expand_perm_with_vpdi): New function.
118         (vectorize_vec_perm_const_1): Call expand_perm_with_vpdi.
119         * config/s390/vector.md (*vpdi1<mode>, @vpdi1<mode>): Enable a
120         parameterized expander.
121         (*vpdi4<mode>, @vpdi4<mode>): Likewise.
122
123 2021-08-04  Andreas Krebbel  <krebbel@linux.ibm.com>
124
125         * config/s390/s390.c (MAX_VECT_LEN): Define macro.
126         (struct expand_vec_perm_d): Define struct.
127         (expand_perm_with_merge): New function.
128         (vectorize_vec_perm_const_1): New function.
129         (s390_vectorize_vec_perm_const): New function.
130         (TARGET_VECTORIZE_VEC_PERM_CONST): Define target macro.
131
132 2021-08-04  Andreas Krebbel  <krebbel@linux.ibm.com>
133
134         * config/s390/vector.md (V_HW_64): Remove mode iterator.
135         (*vec_load_pair<mode>): Use V_HW_2 instead of V_HW_64.
136         * config/s390/vx-builtins.md
137         (vec_scatter_element<V_HW_2:mode>_SI): Use V_HW_2 instead of
138         V_HW_64.
139
140 2021-08-04  Andreas Krebbel  <krebbel@linux.ibm.com>
141
142         * config/s390/s390.md (UNSPEC_VEC_PERMI): Remove constant
143         definition.
144         * config/s390/vector.md (*vpdi1<mode>, *vpdi4<mode>): New pattern
145         definitions.
146         * config/s390/vx-builtins.md (*vec_permi<mode>): Emit generic rtx
147         instead of an unspec.
148
149 2021-08-04  Andreas Krebbel  <krebbel@linux.ibm.com>
150
151         * config/s390/s390-modes.def: Add more vector modes to support
152         concatenation of two vectors.
153         * config/s390/s390-protos.h (s390_expand_merge_perm_const): Add
154         prototype.
155         (s390_expand_merge): Likewise.
156         * config/s390/s390.c (s390_expand_merge_perm_const): New function.
157         (s390_expand_merge): New function.
158         * config/s390/s390.md (UNSPEC_VEC_MERGEH, UNSPEC_VEC_MERGEL):
159         Remove constant definitions.
160         * config/s390/vector.md (V_HW_2): Add mode iterators.
161         (VI_HW_4, V_HW_4): Rename VI_HW_4 to V_HW_4.
162         (vec_2x_nelts, vec_2x_wide): New mode attributes.
163         (*vmrhb, *vmrlb, *vmrhh, *vmrlh, *vmrhf, *vmrlf, *vmrhg, *vmrlg):
164         New pattern definitions.
165         (vec_widen_umult_lo_<mode>, vec_widen_umult_hi_<mode>)
166         (vec_widen_smult_lo_<mode>, vec_widen_smult_hi_<mode>)
167         (vec_unpacks_lo_v4sf, vec_unpacks_hi_v4sf, vec_unpacks_lo_v2df)
168         (vec_unpacks_hi_v2df): Adjust expanders to emit non-unspec RTX for
169         vec merge.
170         * config/s390/vx-builtins.md (V_HW_4): Remove mode iterator. Now
171         in vector.md.
172         (vec_mergeh<mode>, vec_mergel<mode>): Use s390_expand_merge to
173         emit vec merge pattern.
174
175 2021-08-04  Jonathan Wright  <jonathan.wright@arm.com>
176
177         * config/aarch64/aarch64.c (aarch64_strip_extend_vec_half):
178         Define.
179         (aarch64_rtx_mult_cost): Traverse RTL tree to prevent cost of
180         vec_select high-half from being added into Neon multiply
181         cost.
182         * rtlanal.c (vec_series_highpart_p): Define.
183         * rtlanal.h (vec_series_highpart_p): Declare.
184
185 2021-08-04  Jonathan Wright  <jonathan.wright@arm.com>
186
187         * config/aarch64/aarch64.c (aarch64_strip_duplicate_vec_elt):
188         Define.
189         (aarch64_rtx_mult_cost): Traverse RTL tree to prevent
190         vec_select cost from being added into Neon multiply cost.
191
192 2021-08-04  Richard Sandiford  <richard.sandiford@arm.com>
193
194         * tree-vect-loop.c (vect_better_loop_vinfo_p): Detect cases in
195         which old_loop_vinfo is an epilogue loop that handles a constant
196         number of iterations.
197
198 2021-08-04  Richard Sandiford  <richard.sandiford@arm.com>
199
200         * tree-vect-loop.c (vect_analyze_loop): Print a dump message
201         when a reanalyzed loop fails to be cheaper than the current
202         main loop.
203
204 2021-08-04  Richard Sandiford  <richard.sandiford@arm.com>
205
206         * config/aarch64/aarch64.c: Fix a typo.
207
208 2021-08-04  Vincent Lefèvre  <vincent-gcc@vinc17.net>
209
210         PR gcov-profile/101773
211         * gcov-io.c (gcov_close): Check return code of a fclose.
212
213 2021-08-04  Bernd Edlinger  <bernd.edlinger@hotmail.de>
214
215         PR ada/101575
216         * dwarf2out.c (dwarf2out_assembly_start): Emit a dummy
217         .file statement when needed.
218
219 2021-08-04  Richard Biener  <rguenther@suse.de>
220
221         * tree-vect-data-refs.c (vect_check_gather_scatter):
222         Include widening conversions only when the result is
223         still handed by native gather or the current offset
224         size not already matches the data size.
225         Also succeed analysis in case there's no native support,
226         noted by a IFN_LAST ifn and a NULL decl.
227         (vect_analyze_data_refs): Always consider gathers.
228         * tree-vect-patterns.c (vect_recog_gather_scatter_pattern):
229         Test for no IFN gather rather than decl gather.
230         * tree-vect-stmts.c (vect_model_load_cost): Pass in the
231         gather-scatter info and cost emulated gathers accordingly.
232         (vect_truncate_gather_scatter_offset): Properly test for
233         no IFN gather.
234         (vect_use_strided_gather_scatters_p): Likewise.
235         (get_load_store_type): Handle emulated gathers and its
236         restrictions.
237         (vectorizable_load): Likewise.  Emulate them by extracting
238         scalar offsets, doing scalar loads and a vector construct.
239
240 2021-08-04  H.J. Lu  <hjl.tools@gmail.com>
241
242         PR target/101742
243         * expr.c (op_by_pieces_d::op_by_pieces_d): Add a max_pieces
244         argument to set m_max_size.
245         (move_by_pieces_d): Pass MOVE_MAX_PIECES to op_by_pieces_d.
246         (store_by_pieces_d): Pass STORE_MAX_PIECES to op_by_pieces_d.
247         (compare_by_pieces_d): Pass COMPARE_MAX_PIECES to op_by_pieces_d.
248
249 2021-08-04  Roger Sayle  <roger@nextmovesoftware.com>
250             Marc Glisse  <marc.glisse@inria.fr>
251
252         * match.pd (bit_ior, bit_xor): Canonicalize (X*C1)|(X*C2) and
253         (X*C1)^(X*C2) as X*(C1+C2), and related variants, using
254         tree_nonzero_bits to ensure that operands are bit-wise disjoint.
255
256 2021-08-04  Richard Biener  <rguenther@suse.de>
257
258         * tree-ssa-forwprop.c (pass_forwprop::execute): Split
259         out code to decompose vector loads ...
260         (optimize_vector_load): ... here.  Generalize it to
261         handle intermediate widening and TARGET_MEM_REF loads
262         and apply it to loads with a supported vector mode as well.
263
264 2021-08-04  Richard Biener  <rguenther@suse.de>
265
266         PR tree-optimization/101756
267         * tree-vect-slp.c (vectorizable_bb_reduc_epilogue): Make sure
268         the result of the reduction epilogue is compatible to the original
269         scalar result.
270
271 2021-08-04  liuhongt  <hongtao.liu@intel.com>
272
273         PR target/101743
274         * config/i386/i386.md (peephole2): Refine predicate from
275         register_operand to general_reg_operand.
276
277 2021-08-04  Aldy Hernandez  <aldyh@redhat.com>
278
279         * gimple-range-path.h (path_range_query::dump): Mark override.
280
281 2021-08-04  Richard Biener  <rguenther@suse.de>
282
283         PR tree-optimization/101769
284         * tree-tailcall.c (eliminate_tail_call): Add the created loop
285         for the first recursion and return it via the new output parameter.
286         (optimize_tail_call): Pass through new output param.
287         (tree_optimize_tail_calls_1): After creating all latches,
288         add the created loop to the loop tree.  Do not mark loops for fixup.
289
290 2021-08-04  Martin Liska  <mliska@suse.cz>
291
292         * doc/invoke.texi: Document threader-mode param.
293
294 2021-08-04  liuhongt  <hongtao.liu@intel.com>
295
296         * config/i386/sse.md (cond_fma<mode>): New expander.
297         (cond_fms<mode>): Ditto.
298         (cond_fnma<mode>): Ditto.
299         (cond_fnms<mode>): Ditto.
300
301 2021-08-03  Segher Boessenkool  <segher@kernel.crashing.org>
302
303         * config/rs6000/vsx.md (*vsx_le_perm_store_<mode>): Use && instead of &.
304
305 2021-08-03  Segher Boessenkool  <segher@kernel.crashing.org>
306
307         * config/rs6000/constraints.md: Remove "e" from the list of available
308         constraint characters.
309
310 2021-08-03  Eugene Rozenfeld  <erozen@microsoft.com>
311
312         PR gcov-profile/71672
313         * auto-profile.c (afdo_indirect_call): Fix setup of the historgram value for indirect calls.
314
315 2021-08-03  Paul A. Clarke  <pc@us.ibm.com>
316
317         * config/rs6000/smmintrin.h (_mm_minpos_epu16): New.
318
319 2021-08-03  H.J. Lu  <hjl.tools@gmail.com>
320
321         * config/i386/i386.c (ix86_gen_scratch_sse_rtx): In 64-bit mode,
322         try XMM31 to avoid vzeroupper.
323
324 2021-08-03  Richard Sandiford  <richard.sandiford@arm.com>
325
326         * doc/invoke.texi: Document -mtune=neoverse-512tvb and
327         -mcpu=neoverse-512tvb.
328         * config/aarch64/aarch64-cores.def (neoverse-512tvb): New entry.
329         * config/aarch64/aarch64-tune.md: Regenerate.
330         * config/aarch64/aarch64.c (neoverse512tvb_sve_vector_cost)
331         (neoverse512tvb_sve_issue_info, neoverse512tvb_vec_issue_info)
332         (neoverse512tvb_vector_cost, neoverse512tvb_tunings): New structures.
333         (aarch64_adjust_body_cost_sve): Handle -mtune=neoverse-512tvb.
334         (aarch64_adjust_body_cost): Likewise.
335
336 2021-08-03  Richard Sandiford  <richard.sandiford@arm.com>
337
338         * config/aarch64/aarch64.c (aarch64_add_stmt_cost): Only
339         record issue information for operations that occur in the
340         innermost loop.
341
342 2021-08-03  Richard Sandiford  <richard.sandiford@arm.com>
343
344         * config/aarch64/aarch64.c (aarch64_multiply_add_p): Add a vec_flags
345         parameter.  Detect cases in which an Advanced SIMD MLA would almost
346         certainly require a MOV.
347         (aarch64_count_ops): Update accordingly.
348
349 2021-08-03  Richard Sandiford  <richard.sandiford@arm.com>
350
351         * config/aarch64/aarch64.c (aarch64_is_store_elt_extraction): New
352         function, split out from...
353         (aarch64_detect_vector_stmt_subtype): ...here.
354         (aarch64_add_stmt_cost): Treat extracting element 0 as free.
355
356 2021-08-03  Richard Sandiford  <richard.sandiford@arm.com>
357
358         * config/aarch64/aarch64-protos.h (sve_vec_cost):
359         Add gather_load_x32_cost and gather_load_x64_cost.
360         * config/aarch64/aarch64.c (generic_sve_vector_cost)
361         (a64fx_sve_vector_cost, neoversev1_sve_vector_cost): Update
362         accordingly, using the values given by the scalar_load * number
363         of elements calculation that we used previously.
364         (aarch64_detect_vector_stmt_subtype): Use the new fields.
365
366 2021-08-03  Richard Sandiford  <richard.sandiford@arm.com>
367
368         * config/aarch64/aarch64.c (aarch64_adjust_body_cost_sve): New
369         function, split out from...
370         (aarch64_adjust_body_cost): ...here.
371
372 2021-08-03  Richard Sandiford  <richard.sandiford@arm.com>
373
374         * config/aarch64/fractional-cost.h: New file.
375         * config/aarch64/aarch64.c: Include <algorithm> (indirectly)
376         and cost_fraction.h.
377         (vec_cost_fraction): New typedef.
378         (aarch64_detect_scalar_stmt_subtype): Use it for statement costs.
379         (aarch64_detect_vector_stmt_subtype): Likewise.
380         (aarch64_sve_adjust_stmt_cost, aarch64_adjust_stmt_cost): Likewise.
381         (aarch64_estimate_min_cycles_per_iter): Use vec_cost_fraction
382         for cycle counts.
383         (aarch64_adjust_body_cost): Likewise.
384         (aarch64_test_cost_fraction): New function.
385         (aarch64_run_selftests): Call it.
386
387 2021-08-03  Richard Sandiford  <richard.sandiford@arm.com>
388
389         * config/aarch64/aarch64-protos.h (tune_params::sve_width): Turn
390         into a bitmask.
391         * config/aarch64/aarch64.c (aarch64_cmp_autovec_modes): Update
392         accordingly.
393         (aarch64_estimated_poly_value): Likewise.  Use the least significant
394         set bit for the minimum and likely values.  Use the most significant
395         set bit for the maximum value.
396
397 2021-08-03  liuhongt  <hongtao.liu@intel.com>
398
399         * config/i386/sse.md (cond_<insn><mode>): New expander.
400         (cond_mul<mode>): Ditto.
401
402 2021-08-03  Kewen Lin  <linkw@linux.ibm.com>
403
404         * tree-cfg.c (move_sese_region_to_fn): Fix typos on dloop.
405
406 2021-08-03  liuhongt  <hongtao.liu@intel.com>
407
408         * config/i386/sse.md (cond_<insn><mode>):New expander.
409         (cond_mul<mode>): Ditto.
410         (cond_div<mode>): Ditto.
411
412 2021-08-02  H.J. Lu  <hjl.tools@gmail.com>
413
414         * config/i386/i386.c (ix86_finalize_stack_frame_flags): Also
415         check stack_realign_needed for stack realignment.
416         (ix86_legitimate_constant_p): Always allow CONST_WIDE_INT smaller
417         than the largest integer supported by vector register.
418         * config/i386/i386.h (MAX_MOVE_MAX): New.  Set to 64.
419         (MOVE_MAX): Set to bytes of the largest integer supported by
420         vector register.
421         (STORE_MAX_PIECES): New.
422
423 2021-08-02  H.J. Lu  <hjl.tools@gmail.com>
424
425         * config/i386/i386-expand.c (ix86_expand_vector_move): Call
426         ix86_gen_scratch_sse_rtx to get a scratch SSE register to copy
427         data from one memory location to another.
428
429 2021-08-02  H.J. Lu  <hjl.tools@gmail.com>
430
431         PR middle-end/90773
432         * config/i386/i386.c (TARGET_GEN_MEMSET_SCRATCH_RTX): New.
433
434 2021-08-02  Aldy Hernandez  <aldyh@redhat.com>
435
436         PR tree-optimization/101724
437         * params.opt: Remove --param=threader-iterative.
438         * tree-ssa-threadbackward.c (pass_thread_jumps::execute): Remove
439         iterative mode.
440
441 2021-08-02  Tom de Vries  <tdevries@suse.de>
442
443         PR middle-end/101665
444         * doc/extend.texi (nonnull attribute): Improve documentation.
445
446 2021-08-02  Andrew Pinski  <apinski@marvell.com>
447
448         PR rtl-optimization/101683
449         * rtlanal.c (may_trap_p_1): Handle UNSIGNED_FIX.
450
451 2021-08-02  Roger Sayle  <roger@nextmovesoftware.com>
452
453         * tree-ssa-phiopt.c (cond_removal_in_builtin_zero_pattern):
454         Renamed from cond_removal_in_popcount_clz_ctz_pattern.
455         Add support for BSWAP, FFS, PARITY and CLRSB builtins.
456         (tree_ssa_phiop_worker): Update call to function above.
457
458 2021-08-01  H.J. Lu  <hjl.tools@gmail.com>
459
460         PR target/78103
461         * config/i386/i386.md (bsr_rex64_1_zext): New.
462         (combine splitter for constant - clzll): Replace gen_bsr_rex64_1
463         with gen_bsr_rex64_1_zext.
464
465 2021-07-31  Jakub Jelinek  <jakub@redhat.com>
466
467         PR target/78103
468         * config/i386/i386.md (bsr_rex64_1, bsr_1, bsr_zext_1): New
469         define_insn patterns.
470         (*bsr_rex64_2, *bsr_2): New define_insn_and_split patterns.
471         Add combine splitters for constant - clz.
472         (clz<mode>2): Use a temporary pseudo for bsr result.
473
474 2021-07-30  Paul A. Clarke  <pc@us.ibm.com>
475
476         * config/rs6000/smmintrin.h (_mm_floor_pd, _mm_floor_ps,
477         _mm_floor_sd, _mm_floor_ss): New.
478
479 2021-07-30  Paul A. Clarke  <pc@us.ibm.com>
480
481         * config/rs6000/smmintrin.h (_mm_ceil_pd, _mm_ceil_ps,
482         _mm_ceil_sd, _mm_ceil_ss): New.
483
484 2021-07-30  Paul A. Clarke  <pc@us.ibm.com>
485
486         * config/rs6000/smmintrin.h (_mm_blend_pd, _mm_blendv_pd,
487         _mm_blend_ps, _mm_blendv_ps): New.
488
489 2021-07-30  Roger Sayle  <roger@nextmovesoftware.com>
490             Uroš Bizjak  <ubizjak@gmail.com>
491
492         * config/i386/i386.md (*dec_cmov<mode>): New define_insn_and_split
493         to generate a conditional move using the carry flag after sub $1.
494         (peephole2): Eliminate a register-to-register move by inverting
495         the condition of a conditional move.
496
497 2021-07-30  Hans-Peter Nilsson  <hp@bitrange.com>
498
499         * config/mmix/mmix.md ("call", "call_value", "*call_real")
500         ("*call_value_real"): Don't generate rtx mentioning the generic
501         operands 1 and 2 to "call", and similarly for "call_value".
502         * config/mmix/mmix.c (mmix_print_operand_punct_valid_p)
503         (mmix_print_operand): Use '!' instead of 'p'.
504
505 2021-07-30  Hans-Peter Nilsson  <hp@bitrange.com>
506
507         * doc/md.texi (call): Correct information about operand 2.
508         * config/mmix/mmix.md ("call", "call_value"): Remove fixed FIXMEs.
509
510 2021-07-30  Andrew MacLeod  <amacleod@redhat.com>
511
512         * range-op.cc (operator_trunc_mod::wi_fold): Fold constants.
513
514 2021-07-30  Andrew MacLeod  <amacleod@redhat.com>
515
516         * range-op.cc (operator_div::wi_fold): Return UNDEFINED for [0, 0] divisor.
517
518 2021-07-30  Andrew MacLeod  <amacleod@redhat.com>
519
520         * gimple-range-cache.cc (*::set_bb_range): Change const basic_block to
521         const_basic_block..
522         (*::get_bb_range): Ditto.
523         (*::bb_range_p): Ditto.
524         * gimple-range-cache.h: Change prototypes.
525
526 2021-07-30  H.J. Lu  <hjl.tools@gmail.com>
527
528         PR middle-end/90773
529         * builtins.c (builtin_memcpy_read_str): Change the mode argument
530         from scalar_int_mode to fixed_size_mode.
531         (builtin_strncpy_read_str): Likewise.
532         (gen_memset_value_from_prev): New function.
533         (builtin_memset_read_str): Change the mode argument from
534         scalar_int_mode to fixed_size_mode.  Use gen_memset_value_from_prev
535         and support CONST_VECTOR.
536         (builtin_memset_gen_str): Likewise.
537         (try_store_by_multiple_pieces): Use by_pieces_constfn to declare
538         constfun.
539         * builtins.h (builtin_strncpy_read_str): Replace scalar_int_mode
540         with fixed_size_mode.
541         (builtin_memset_read_str): Likewise.
542         * expr.c (widest_int_mode_for_size): Renamed to ...
543         (widest_fixed_size_mode_for_size): Add a bool argument to
544         indicate if QI vector mode can be used.
545         (by_pieces_ninsns): Call widest_fixed_size_mode_for_size
546         instead of widest_int_mode_for_size.
547         (pieces_addr::adjust): Change the mode argument from
548         scalar_int_mode to fixed_size_mode.
549         (op_by_pieces_d): Make m_len read-only.  Add a bool member,
550         m_qi_vector_mode, to indicate that QI vector mode can be used.
551         (op_by_pieces_d::op_by_pieces_d): Add a bool argument to
552         initialize m_qi_vector_mode.  Call widest_fixed_size_mode_for_size
553         instead of widest_int_mode_for_size.
554         (op_by_pieces_d::get_usable_mode): Change the mode argument from
555         scalar_int_mode to fixed_size_mode.  Call
556         widest_fixed_size_mode_for_size instead of
557         widest_int_mode_for_size.
558         (op_by_pieces_d::smallest_fixed_size_mode_for_size): New member
559         function to return the smallest integer or QI vector mode.
560         (op_by_pieces_d::run): Call widest_fixed_size_mode_for_size
561         instead of widest_int_mode_for_size.  Call
562         smallest_fixed_size_mode_for_size instead of
563         smallest_int_mode_for_size.
564         (store_by_pieces_d::store_by_pieces_d): Add a bool argument to
565         indicate that QI vector mode can be used and pass it to
566         op_by_pieces_d::op_by_pieces_d.
567         (can_store_by_pieces): Call widest_fixed_size_mode_for_size
568         instead of widest_int_mode_for_size.  Pass memsetp to
569         widest_fixed_size_mode_for_size to support QI vector mode.
570         Allow all CONST_VECTORs for memset if vec_duplicate is supported.
571         (store_by_pieces): Pass memsetp to
572         store_by_pieces_d::store_by_pieces_d.
573         (clear_by_pieces_1): Removed.
574         (clear_by_pieces): Replace clear_by_pieces_1 with
575         builtin_memset_read_str and pass true to store_by_pieces_d to
576         support vector mode broadcast.
577         (string_cst_read_str): Change the mode argument from
578         scalar_int_mode to fixed_size_mode.
579         * expr.h (by_pieces_constfn): Change scalar_int_mode to
580         fixed_size_mode.
581         (by_pieces_prev): Likewise.
582         * rtl.h (lowpart_subreg_regno): New.
583         * rtlanal.c (lowpart_subreg_regno): New.  A wrapper around
584         simplify_subreg_regno.
585         * target.def (gen_memset_scratch_rtx): New hook.
586         * doc/tm.texi.in: Add TARGET_GEN_MEMSET_SCRATCH_RTX.
587         * doc/tm.texi: Regenerated.
588
589 2021-07-30  Xi Ruoyao  <xry111@mengyan1223.wang>
590
591         PR target/94780
592         * config/mips/mips.c (mips_atomic_assign_expand_fenv): Use
593           TARGET_EXPR instead of MODIFY_EXPR.
594
595 2021-07-30  Xi Ruoyao  <xry111@mengyan1223.wang>
596
597         PR target/101132
598         * config/mips/mips-protos.h (mips_expand_vec_cmp_expr): Declare.
599         * config/mips/mips.c (mips_expand_vec_cmp_expr): New function.
600         * config/mips/mips-msa.md (vec_cmp<MSA:mode><mode_i>): New
601           expander.
602           (vec_cmpu<IMSA:mode><mode_i>): New expander.
603
604 2021-07-30  H.J. Lu  <hjl.tools@gmail.com>
605
606         PR target/101685
607         * config/i386/i386-options.c (ix86_option_override_internal):
608         Don't enable LZCNT/POPCNT if they have been disabled explicitly.
609
610 2021-07-30  prathamesh.kulkarni  <prathamesh.kulkarni@linaro.org>
611
612         PR target/66791
613         * config/arm/arm_neon.h (vld1_p64): Replace call to builtin by
614         explicitly dereferencing __a.
615         (vld1_s64): Likewise.
616         (vld1_u64): Likewise.
617         * config/arm/arm_neon_builtins.def (vld1): Remove entry for di
618         and change to VAR13.
619
620 2021-07-30  Aldy Hernandez  <aldyh@redhat.com>
621
622         * gimple-loop-versioning.cc (lv_dom_walker::lv_dom_walker): Remove
623         use of m_range_analyzer.
624         (loop_versioning::lv_dom_walker::before_dom_children): Same.
625         (loop_versioning::lv_dom_walker::after_dom_children): Remove.
626         (loop_versioning::prune_loop_conditions): Replace vr_values use
627         with range_query interface.
628         (pass_loop_versioning::execute): Use ranger.
629
630 2021-07-30  Xi Ruoyao  <xry111@mengyan1223.wang>
631
632         PR ipa/101396
633         * ipa-devirt.c (ipa_odr_read_section): Compare the precision of
634           enum values, and emit a warning if they mismatch.
635
636 2021-07-30  Kewen Lin  <linkw@linux.ibm.com>
637
638         * cfgloop.h (as_const): New function.
639         (class loop_iterator): Rename to ...
640         (class loops_list): ... this.
641         (loop_iterator::next): Rename to ...
642         (loops_list::Iter::fill_curr_loop): ... this and adjust.
643         (loop_iterator::loop_iterator): Rename to ...
644         (loops_list::loops_list): ... this and adjust.
645         (loops_list::Iter): New class.
646         (loops_list::iterator): New type.
647         (loops_list::const_iterator): New type.
648         (loops_list::begin): New function.
649         (loops_list::end): Likewise.
650         (loops_list::begin const): Likewise.
651         (loops_list::end const): Likewise.
652         (FOR_EACH_LOOP): Remove.
653         (FOR_EACH_LOOP_FN): Remove.
654         * cfgloop.c (flow_loops_dump): Adjust FOR_EACH_LOOP* with range-based
655         for loop with loops_list instance.
656         (sort_sibling_loops): Likewise.
657         (disambiguate_loops_with_multiple_latches): Likewise.
658         (verify_loop_structure): Likewise.
659         * cfgloopmanip.c (create_preheaders): Likewise.
660         (force_single_succ_latches): Likewise.
661         * config/aarch64/falkor-tag-collision-avoidance.c
662         (execute_tag_collision_avoidance): Likewise.
663         * config/mn10300/mn10300.c (mn10300_scan_for_setlb_lcc): Likewise.
664         * config/s390/s390.c (s390_adjust_loops): Likewise.
665         * doc/loop.texi: Likewise.
666         * gimple-loop-interchange.cc (pass_linterchange::execute): Likewise.
667         * gimple-loop-jam.c (tree_loop_unroll_and_jam): Likewise.
668         * gimple-loop-versioning.cc (loop_versioning::analyze_blocks): Likewise.
669         (loop_versioning::make_versioning_decisions): Likewise.
670         * gimple-ssa-split-paths.c (split_paths): Likewise.
671         * graphite-isl-ast-to-gimple.c (graphite_regenerate_ast_isl): Likewise.
672         * graphite.c (canonicalize_loop_form): Likewise.
673         (graphite_transform_loops): Likewise.
674         * ipa-fnsummary.c (analyze_function_body): Likewise.
675         * ipa-pure-const.c (analyze_function): Likewise.
676         * loop-doloop.c (doloop_optimize_loops): Likewise.
677         * loop-init.c (loop_optimizer_finalize): Likewise.
678         (fix_loop_structure): Likewise.
679         * loop-invariant.c (calculate_loop_reg_pressure): Likewise.
680         (move_loop_invariants): Likewise.
681         * loop-unroll.c (decide_unrolling): Likewise.
682         (unroll_loops): Likewise.
683         * modulo-sched.c (sms_schedule): Likewise.
684         * predict.c (predict_loops): Likewise.
685         (pass_profile::execute): Likewise.
686         * profile.c (branch_prob): Likewise.
687         * sel-sched-ir.c (sel_finish_pipelining): Likewise.
688         (sel_find_rgns): Likewise.
689         * tree-cfg.c (replace_loop_annotate): Likewise.
690         (replace_uses_by): Likewise.
691         (move_sese_region_to_fn): Likewise.
692         * tree-if-conv.c (pass_if_conversion::execute): Likewise.
693         * tree-loop-distribution.c (loop_distribution::execute): Likewise.
694         * tree-parloops.c (parallelize_loops): Likewise.
695         * tree-predcom.c (tree_predictive_commoning): Likewise.
696         * tree-scalar-evolution.c (scev_initialize): Likewise.
697         (scev_reset): Likewise.
698         * tree-ssa-dce.c (find_obviously_necessary_stmts): Likewise.
699         * tree-ssa-live.c (remove_unused_locals): Likewise.
700         * tree-ssa-loop-ch.c (ch_base::copy_headers): Likewise.
701         * tree-ssa-loop-im.c (analyze_memory_references): Likewise.
702         (tree_ssa_lim_initialize): Likewise.
703         * tree-ssa-loop-ivcanon.c (canonicalize_induction_variables): Likewise.
704         * tree-ssa-loop-ivopts.c (tree_ssa_iv_optimize): Likewise.
705         * tree-ssa-loop-manip.c (get_loops_exits): Likewise.
706         * tree-ssa-loop-niter.c (estimate_numbers_of_iterations): Likewise.
707         (free_numbers_of_iterations_estimates): Likewise.
708         * tree-ssa-loop-prefetch.c (tree_ssa_prefetch_arrays): Likewise.
709         * tree-ssa-loop-split.c (tree_ssa_split_loops): Likewise.
710         * tree-ssa-loop-unswitch.c (tree_ssa_unswitch_loops): Likewise.
711         * tree-ssa-loop.c (gate_oacc_kernels): Likewise.
712         (pass_scev_cprop::execute): Likewise.
713         * tree-ssa-propagate.c (clean_up_loop_closed_phi): Likewise.
714         * tree-ssa-sccvn.c (do_rpo_vn): Likewise.
715         * tree-ssa-threadupdate.c
716         (jump_thread_path_registry::thread_through_all_blocks): Likewise.
717         * tree-vectorizer.c (vectorize_loops): Likewise.
718         * tree-vrp.c (vrp_asserts::find_assert_locations): Likewise.
719
720 2021-07-29  Hans-Peter Nilsson  <hp@bitrange.com>
721
722         * config/mmix/mmix.c (mmix_function_arg_1): Avoid
723         generating a VOIDmode register for e.g the
724         function_arg_info::end_marker.
725
726 2021-07-29  Jeff Law  <jeffreyalaw@gmail.com>
727
728         * config/h8300/h8300-modes.def: Add CCZ, CCV and CCC, drop CCZNV.
729         * config/h8300/h8300.md (H8cc mode iterator): Add CCZ.
730         (cc mode_attr): Similarly.
731         (ccz subst_attr): Similarly.
732         * config/h8300/jumpcall.md: Add new patterns for branch-on-bit.
733         * config/h8300/testcompare.md: Remove various cc0 based patterns
734         that had been commented out.  Add pattern to set CCZ from a bit
735         test.
736
737 2021-07-29  Thomas Schwinge  <thomas@codesourcery.com>
738             Julian Brown  <julian@codesourcery.com>
739             Kwok Cheung Yeung  <kcy@codesourcery.com>
740
741         * omp-offload.c (oacc_loop_xform_head_tail, oacc_loop_process):
742         'update_stmt' after modification.
743         (pass_oacc_loop_designation): New function, extracted out of...
744         (pass_oacc_device_lower): ... this.
745         (pass_data_oacc_loop_designation, pass_oacc_loop_designation)
746         (make_pass_oacc_loop_designation): New
747         * passes.def: Add it.
748         * tree-parloops.c (create_parallel_loop): Adjust.
749         * tree-pass.h (make_pass_oacc_loop_designation): New.
750
751 2021-07-29  Aldy Hernandez  <aldyh@redhat.com>
752
753         * flag-types.h (enum threader_mode): New.
754         * params.opt: Add entry for --param=threader-mode.
755         * tree-ssa-threadbackward.c (THREADER_ITERATIVE_MODE): New.
756         (class back_threader): New.
757         (back_threader::back_threader): New.
758         (back_threader::~back_threader): New.
759         (back_threader::maybe_register_path): New.
760         (back_threader::find_taken_edge): New.
761         (back_threader::find_taken_edge_switch): New.
762         (back_threader::find_taken_edge_cond): New.
763         (back_threader::resolve_def): New.
764         (back_threader::resolve_phi): New.
765         (back_threader::find_paths_to_names): New.
766         (back_threader::find_paths): New.
767         (dump_path): New.
768         (debug): New.
769         (thread_jumps::find_jump_threads_backwards): Call ranger threader.
770         (thread_jumps::find_jump_threads_backwards_with_ranger): New.
771         (pass_thread_jumps::execute): Abstract out code...
772         (try_thread_blocks): ...here.
773         * tree-ssa-threadedge.c (jump_threader::thread_outgoing_edges):
774         Abstract out threading candidate code to...
775         (single_succ_to_potentially_threadable_block): ...here.
776         * tree-ssa-threadedge.h (single_succ_to_potentially_threadable_block):
777         New.
778         * tree-ssa-threadupdate.c (register_jump_thread): Return boolean.
779         * tree-ssa-threadupdate.h (class jump_thread_path_registry):
780         Return bool from register_jump_thread.
781
782 2021-07-29  Andreas Krebbel  <krebbel@linux.ibm.com>
783
784         * target.def: in0 and in1 do not need to be registers.
785         * doc/tm.texi: Regenerate.
786
787 2021-07-29  liuhongt  <hongtao.liu@intel.com>
788
789         PR target/39821
790         * config/i386/i386.c (ix86_widen_mult_cost): New function.
791         (ix86_add_stmt_cost): Use ix86_widen_mult_cost for
792         WIDEN_MULT_EXPR.
793
794 2021-07-29  Jiufu Guo  <guojiufu@linux.ibm.com>
795
796         PR target/61837
797         * config/rs6000/rs6000.c (TARGET_PREFERRED_DOLOOP_MODE): New hook.
798         (rs6000_preferred_doloop_mode): New hook.
799         * doc/tm.texi: Regenerate.
800         * doc/tm.texi.in: Add hook preferred_doloop_mode.
801         * target.def (preferred_doloop_mode): New hook.
802         * targhooks.c (default_preferred_doloop_mode): New hook.
803         * targhooks.h (default_preferred_doloop_mode): New hook.
804         * tree-ssa-loop-ivopts.c (compute_doloop_base_on_mode): New function.
805         (add_iv_candidate_for_doloop): Call targetm.preferred_doloop_mode
806         and compute_doloop_base_on_mode.
807
808 2021-07-28  Martin Sebor  <msebor@redhat.com>
809
810         PR middle-end/101494
811         * tree-ssa-uninit.c (maybe_warn_operand): Correct object offset
812         and size computation.
813
814 2021-07-28  Martin Sebor  <msebor@redhat.com>
815
816         PR middle-end/101601
817         * gimple-array-bounds.cc (array_bounds_checker::check_mem_ref): Remove
818         a pointless test.
819         Handle pointers to functions.
820
821 2021-07-28  Martin Sebor  <msebor@redhat.com>
822
823         * Makefile.in (OBJS): Add gimple-ssa-warn-access.o and pointer-query.o.
824         * attribs.h (fndecl_dealloc_argno): Move fndecl_dealloc_argno to tree.h.
825         * builtins.c (compute_objsize_r): Move to pointer-query.cc.
826         (access_ref::access_ref): Same.
827         (access_ref::phi): Same.
828         (access_ref::get_ref): Same.
829         (access_ref::size_remaining): Same.
830         (access_ref::offset_in_range): Same.
831         (access_ref::add_offset): Same.
832         (access_ref::inform_access): Same.
833         (ssa_name_limit_t::visit_phi): Same.
834         (ssa_name_limit_t::leave_phi): Same.
835         (ssa_name_limit_t::next): Same.
836         (ssa_name_limit_t::next_phi): Same.
837         (ssa_name_limit_t::~ssa_name_limit_t): Same.
838         (pointer_query::pointer_query): Same.
839         (pointer_query::get_ref): Same.
840         (pointer_query::put_ref): Same.
841         (pointer_query::flush_cache): Same.
842         (warn_string_no_nul): Move to gimple-ssa-warn-access.cc.
843         (check_nul_terminated_array): Same.
844         (unterminated_array): Same.
845         (maybe_warn_for_bound): Same.
846         (check_read_access): Same.
847         (warn_for_access): Same.
848         (get_size_range): Same.
849         (check_access): Same.
850         (gimple_call_alloc_size): Move to tree.c.
851         (gimple_parm_array_size): Move to pointer-query.cc.
852         (get_offset_range): Same.
853         (gimple_call_return_array): Same.
854         (handle_min_max_size): Same.
855         (handle_array_ref): Same.
856         (handle_mem_ref): Same.
857         (compute_objsize): Same.
858         (gimple_call_alloc_p): Move to gimple-ssa-warn-access.cc.
859         (call_dealloc_argno): Same.
860         (fndecl_dealloc_argno): Same.
861         (new_delete_mismatch_p): Same.
862         (matching_alloc_calls_p): Same.
863         (warn_dealloc_offset): Same.
864         (maybe_emit_free_warning): Same.
865         * builtins.h (check_nul_terminated_array): Move to
866         gimple-ssa-warn-access.h.
867         (check_nul_terminated_array): Same.
868         (warn_string_no_nul): Same.
869         (unterminated_array): Same.
870         (class ssa_name_limit_t): Same.
871         (class pointer_query): Same.
872         (struct access_ref): Same.
873         (class range_query): Same.
874         (struct access_data): Same.
875         (gimple_call_alloc_size): Same.
876         (gimple_parm_array_size): Same.
877         (compute_objsize): Same.
878         (class access_data): Same.
879         (maybe_emit_free_warning): Same.
880         * calls.c (initialize_argument_information): Remove call to
881         maybe_emit_free_warning.
882         * gimple-array-bounds.cc: Include new header..
883         * gimple-fold.c: Same.
884         * gimple-ssa-sprintf.c: Same.
885         * gimple-ssa-warn-restrict.c: Same.
886         * passes.def: Add pass_warn_access.
887         * tree-pass.h (make_pass_warn_access): Declare.
888         * tree-ssa-strlen.c: Include new headers.
889         * tree.c (fndecl_dealloc_argno): Move here from builtins.c.
890         * tree.h (fndecl_dealloc_argno): Move here from attribs.h.
891         * gimple-ssa-warn-access.cc: New file.
892         * gimple-ssa-warn-access.h: New file.
893         * pointer-query.cc: New file.
894         * pointer-query.h: New file.
895
896 2021-07-28  Jakub Jelinek  <jakub@redhat.com>
897
898         PR middle-end/101624
899         * ubsan.c (maybe_instrument_pointer_overflow,
900         instrument_object_size): Only test DECL_REGISTER on VAR_DECLs,
901         PARM_DECLs or RESULT_DECLs.
902         * sanopt.c (maybe_optimize_ubsan_ptr_ifn): Likewise.
903
904 2021-07-28  Jakub Jelinek  <jakub@redhat.com>
905
906         PR middle-end/101642
907         * match.pd (bswap16 (x) == bswap16 (y)): Cast both operands
908         to type of bswap16 for comparison.
909         (bswap16 (x) == cst): Cast bswap16 operand to type of cst.
910
911 2021-07-28  Richard Biener  <rguenther@suse.de>
912
913         PR tree-optimization/101615
914         * tree-vect-slp.c (vect_optimize_slp): Materialize permutes
915         at CTOR SLP graph entries.
916
917 2021-07-28  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
918
919         * config/aarch64/aarch64.md (*extend<SHORT:mode><GPI:mode>2_aarch64):
920         Add "r,w" alternative.
921
922 2021-07-28  H.J. Lu  <hjl.tools@gmail.com>
923
924         PR target/101456
925         * config/i386/i386.c (ix86_avx_u128_mode_needed): Don't set
926         AVX_U128_DIRTY when all bits are zero.
927
928 2021-07-28  Richard Biener  <rguenther@suse.de>
929
930         PR tree-optimization/101615
931         * tree-vect-slp.c (vect_optimize_slp): Pre-existing vector
932         external nodes cannot be permuted so make them perm_out 0.
933
934 2021-07-28  Andrew Stubbs  <ams@codesourcery.com>
935
936         PR target/100208
937         * config.in: Regenerate.
938         * config/gcn/gcn-hsa.h (A_FIJI): New define.
939         (A_900): New define.
940         (A_906): New define.
941         (A_908): New define.
942         (ASM_SPEC): Use A_FIJI, A_900, A_906 and A_908.
943         * config/gcn/gcn.c (output_file_start): Adjust attributes according
944         to the assembler capabilities.
945         * config/gcn/mkoffload.c (main): Likewise.
946         * configure: Regenerate.
947         * configure.ac: Add tests for LLVM assembler attribute features.
948
949 2021-07-28  Andrew MacLeod  <amacleod@redhat.com>
950
951         * gimple-range-gori.cc (gori_compute::outgoing_edge_range_p): Check for
952         cond_false and cond_true on branches.
953
954 2021-07-28  Bin Cheng  <bin.cheng@linux.alibaba.com>
955
956         * config/aarch64/aarch64.c (aarch64_gen_adjusted_ldpstp): use
957         gcc_stablesort.
958
959 2021-07-28  Bin Cheng  <bin.cheng@linux.alibaba.com>
960
961         * alias.c (init_alias_analysis): Don't skip prologue/epilogue.
962
963 2021-07-28  Jakub Jelinek  <jakub@redhat.com>
964
965         PR target/101611
966         * config/i386/sse.md (vashr<mode>3): Split into vashrv8di3 expander
967         and vashrv4di3 expander, where the latter requires just TARGET_AVX2
968         and has special !TARGET_AVX512VL expansion.
969         (vashrv2di3<mask_name>): Rename to ...
970         (vashrv2di3): ... this.  Change condition to TARGET_XOP || TARGET_AVX2
971         and add special !TARGET_XOP && !TARGET_AVX512VL expansion.
972
973 2021-07-28  Martin Uecker  <muecker@gwdg.de>
974
975         * calls.c (maybe_warn_rdwr_sizes): Correct argument
976         numbers in warning that were switched.
977
978 2021-07-28  Kewen Lin  <linkw@linux.ibm.com>
979
980         PR tree-optimization/101596
981         * tree-vect-patterns.c (vect_recog_mulhs_pattern): Fix wrong check
982         by using new_type's precision instead.
983
984 2021-07-28  liuhongt  <hongtao.liu@intel.com>
985
986         PR target/99881
987         * config/i386/i386.h (processor_costs): Add new member
988         integer_to_sse.
989         * config/i386/x86-tune-costs.h (ix86_size_cost, i386_cost,
990         i486_cost, pentium_cost, lakemont_cost, pentiumpro_cost,
991         geode_cost, k6_cost, athlon_cost, k8_cost, amdfam10_cost,
992         bdver_cost, znver1_cost, znver2_cost, znver3_cost,
993         btver1_cost, btver2_cost, btver3_cost, pentium4_cost,
994         nocona_cost, atom_cost, atom_cost, slm_cost, intel_cost,
995         generic_cost, core_cost): Initialize integer_to_sse same value
996         as sse_op.
997         (skylake_cost): Initialize integer_to_sse twice as much as sse_op.
998         * config/i386/i386.c (ix86_builtin_vectorization_cost):
999         Use integer_to_sse instead of sse_op to calculate the cost of
1000         vec_construct.
1001
1002 2021-07-27  Bill Schmidt  <wschmidt@linux.ibm.com>
1003
1004         * config/rs6000/rs6000-gen-builtins.c (write_ovld_static_init): New
1005         function.
1006         (write_init_file): Call write_ovld_static_init.
1007
1008 2021-07-27  Bill Schmidt  <wschmidt@linux.ibm.com>
1009
1010         * config/rs6000/rs6000-gen-builtins.c (write_bif_static_init): New
1011         function.
1012         (write_init_file): Call write_bif_static_init.
1013
1014 2021-07-27  Bill Schmidt  <wschmidt@linux.ibm.com>
1015
1016         * config/rs6000/rs6000-gen-builtins.c (typemap): New struct.
1017         (TYPE_MAP_SIZE): New macro.
1018         (type_map): New initialized variable.
1019         (typemap_cmp): New function.
1020         (write_type_node): Likewise.
1021         (write_fntype_init): Implement.
1022
1023 2021-07-27  Martin Sebor  <msebor@redhat.com>
1024
1025         PR tree-optimization/101584
1026         * tree-ssa-uninit.c (builtin_call_nomodifying_p): New function.
1027         (check_defs): Call it.
1028
1029 2021-07-27  Aldy Hernandez  <aldyh@redhat.com>
1030
1031         * tree-ssa-dom.c (dom_jump_threader_simplifier):
1032         Put avail_exprs_stack in the class, instead of passing it to
1033         jump_threader_simplifier.
1034         (dom_jump_threader_simplifier::simplify): Add state argument.
1035         (dom_opt_dom_walker): Add state.
1036         (pass_dominator::execute): Pass state to threader.
1037         (dom_opt_dom_walker::before_dom_children): Use state.
1038         * tree-ssa-threadedge.c (jump_threader::jump_threader): Replace
1039         arguments by state.
1040         (jump_threader::record_temporary_equivalences_from_phis):
1041         Register equivalences through the state variable.
1042         (jump_threader::record_temporary_equivalences_from_stmts_at_dest):
1043         Record ranges in a statement through the state variable.
1044         (jump_threader::simplify_control_stmt_condition): Pass state to
1045         simplify.
1046         (jump_threader::simplify_control_stmt_condition_1): Same.
1047         (jump_threader::thread_around_empty_blocks): Remove obsolete
1048         comment.
1049         (jump_threader::thread_through_normal_block): Record equivalences
1050         on edge through the state variable.
1051         (jump_threader::thread_across_edge): Abstract state pushing.
1052         (jt_state::jt_state): New.
1053         (jt_state::push): New.
1054         (jt_state::pop): New.
1055         (jt_state::register_equiv): New.
1056         (jt_state::record_ranges_from_stmt): New.
1057         (jt_state::register_equivs_on_edge): New.
1058         (jump_threader_simplifier::jump_threader_simplifier): Move from
1059         header.
1060         (jump_threader_simplifier::simplify): Add state argument.
1061         * tree-ssa-threadedge.h (class jt_state): New.
1062         (class jump_threader): Add state to constructor.
1063         (class jump_threader_simplifier): Add state to simplify.  Remove
1064         avail_exprs_stack from class.
1065         * tree-vrp.c (vrp_jump_threader_simplifier::simplify): Add state
1066         argument.
1067         (vrp_jump_threader::vrp_jump_threader): Add state.
1068         (vrp_jump_threader::~vrp_jump_threader): Cleanup state.
1069
1070 2021-07-27  Aldy Hernandez  <aldyh@redhat.com>
1071
1072         * Makefile.in (OBJS): Add gimple-range-path.o.
1073         * gimple-range-path.cc: New file.
1074         * gimple-range-path.h: New file.
1075
1076 2021-07-27  Jonathan Wright  <jonathan.wright@arm.com>
1077
1078         * config/aarch64/aarch64-simd.md: Push sign/zero-extension
1079         inside vec_duplicate for all patterns.
1080         * simplify-rtx.c (simplify_context::simplify_unary_operation_1):
1081         Push sign/zero-extension inside vec_duplicate.
1082
1083 2021-07-27  Richard Biener  <rguenther@suse.de>
1084
1085         PR tree-optimization/101573
1086         * tree-ssa-uninit.c (warn_uninit_phi_uses): New function
1087         looking at uninitialized PHI arg defs in some constrained cases.
1088         (warn_uninitialized_vars): Call it.
1089         (execute_early_warn_uninitialized): Calculate dominators.
1090
1091 2021-07-27  Richard Biener  <rguenther@suse.de>
1092
1093         PR tree-optimization/39821
1094         * tree-vect-stmts.c (vect_model_promotion_demotion_cost): Use
1095         vector_stmt for widening arithmetic.
1096         (vectorizable_conversion): Adjust.
1097
1098 2021-07-27  Martin Jambor  <mjambor@suse.cz>
1099
1100         * cgraph.h (ipa_replace_map): New field force_load_ref.
1101         * ipa-prop.h (ipa_param_descriptor): Reduce precision of move_cost,
1102         aded new flag load_dereferenced, adjusted comments.
1103         (ipa_get_param_dereferenced): New function.
1104         (ipa_set_param_dereferenced): Likewise.
1105         * cgraphclones.c (cgraph_node::create_virtual_clone): Follow it.
1106         * ipa-cp.c: Include gimple.h.
1107         (ipcp_discover_new_direct_edges): Take into account dereferenced flag.
1108         (get_replacement_map): New parameter force_load_ref, set the
1109         appropriate flag in ipa_replace_map if set.
1110         (struct symbol_and_index_together): New type.
1111         (adjust_refs_in_act_callers): New function.
1112         (adjust_references_in_caller): Likewise.
1113         (create_specialized_node): When appropriate, call
1114         adjust_references_in_caller and force only load references.
1115         * ipa-prop.c (load_from_dereferenced_name): New function.
1116         (ipa_analyze_controlled_uses): Also detect loads from a
1117         dereference, harden testing of call statements.
1118         (ipa_write_node_info): Stream the dereferenced flag.
1119         (ipa_read_node_info): Likewise.
1120         (ipa_set_jf_constant): Also create refdesc when jump function
1121         references a variable.
1122         (cgraph_node_for_jfunc): Rename to symtab_node_for_jfunc, work
1123         also on references of variables and return a symtab_node.  Adjust
1124         all callers.
1125         (propagate_controlled_uses): Also remove references to VAR_DECLs.
1126
1127 2021-07-27  Jakub Jelinek  <jakub@redhat.com>
1128
1129         PR middle-end/101586
1130         * gimple-fold.c (clear_padding_type): Ignore FIELD_DECLs with byte
1131         positions above or equal to sz except for diagnostics of flexible
1132         array members.
1133
1134 2021-07-26  Andrew MacLeod  <amacleod@redhat.com>
1135
1136         PR tree-optimization/78888
1137         * gimple-range-fold.cc (get_letter_range): New.
1138         (fold_using_range::range_of_builtin_call): Call get_letter_range.
1139
1140 2021-07-26  Andrew MacLeod  <amacleod@redhat.com>
1141
1142         PR tree-optimization/78888
1143         * gimple-range-fold.cc (fold_using_range::range_of_builtin_call): Add cases
1144         for CFN_BUILT_IN_TOUPPER and CFN_BUILT_IN_TOLOWER.
1145
1146 2021-07-26  Roger Sayle  <roger@nextmovesoftware.com>
1147             Marc Glisse  <marc.glisse@inria.fr>
1148
1149         * match.pd (rotate): Simplify equality/inequality of rotations.
1150         (bswap): Simplify equality/inequality tests of byte swapping.
1151
1152 2021-07-26  Aldy Hernandez  <aldyh@redhat.com>
1153
1154         * range-op.cc (operator_bitwise_xor::op1_op2_relation_effect):
1155         New.
1156
1157 2021-07-26  Aldy Hernandez  <aldyh@redhat.com>
1158
1159         * range-op.cc (operator_lshift::fold_range): Pass rel to
1160         base class fold_range.
1161         (operator_rshift::fold_range): Same.
1162
1163 2021-07-26  Ashimida  <ashimida@linux.alibaba.com>
1164
1165         PR driver/101447
1166         * toplev.h (min_align_loops_log): Remove declaration.
1167         (min_align_jumps_log, min_align_labels_log): Likewise.
1168         (min_align_functions_log): Likewise.
1169
1170 2021-07-26  Aldy Hernandez  <aldyh@redhat.com>
1171
1172         * tree-vrp.c (vrp_simplify_cond_using_ranges): Rename vr_values
1173         with range_query.
1174         (execute_vrp): Abstract out simplification of conditionals...
1175         (simplify_casted_conds): ...here.
1176
1177 2021-07-26  Aldy Hernandez  <aldyh@redhat.com>
1178
1179         * gimple-array-bounds.cc (array_bounds_checker::get_value_range):
1180         Add gimple argument.
1181         (array_bounds_checker::check_array_ref): Same.
1182         (array_bounds_checker::check_addr_expr): Same.
1183         (array_bounds_checker::check_array_bounds): Pass statement to
1184         check_array_bounds and check_addr_expr.
1185         * gimple-array-bounds.h (check_array_bounds): Add gimple argument.
1186         (check_addr_expr): Same.
1187         (get_value_range): Same.
1188
1189 2021-07-26  Tamar Christina  <tamar.christina@arm.com>
1190
1191         * config/aarch64/aarch64-simd-builtins.def (sdot, udot): Rename to..
1192         (sdot_prod, udot_prod): ... This.
1193         * config/aarch64/aarch64-simd.md (aarch64_<sur>dot<vsi2qi>): Merged
1194         into...
1195         (<sur>dot_prod<vsi2qi>): ... this.
1196         (aarch64_<sur>dot_lane<vsi2qi>, aarch64_<sur>dot_laneq<vsi2qi>):
1197         Change operands order.
1198         (<sur>sadv16qi): Use new operands order.
1199         * config/aarch64/arm_neon.h (vdot_u32, vdotq_u32, vdot_s32,
1200         vdotq_s32): Use new RTL ordering.
1201
1202 2021-07-26  Tamar Christina  <tamar.christina@arm.com>
1203
1204         * config/aarch64/aarch64-builtins.c (TYPES_TERNOP_SUSS,
1205         aarch64_types_ternop_suss_qualifiers): New.
1206         * config/aarch64/aarch64-simd-builtins.def (usdot_prod): Use it.
1207         * config/aarch64/aarch64-simd.md (usdot_prod<vsi2qi>): Re-organize RTL.
1208         * config/aarch64/arm_neon.h (vusdot_s32, vusdotq_s32): Use it.
1209
1210 2021-07-23  Jakub Jelinek  <jakub@redhat.com>
1211
1212         PR rtl-optimization/101562
1213         * expmed.c (store_integral_bit_field): Only use movstrict_optab
1214         if the operand isn't paradoxical.
1215
1216 2021-07-23  Aldy Hernandez  <aldyh@redhat.com>
1217
1218         * gimple-array-bounds.h (class array_bounds_checker): Change
1219         ranges type to range_query.
1220
1221 2021-07-23  Jonathan Wright  <jonathan.wright@arm.com>
1222
1223         * config/aarch64/arm_neon.h (vst1_s64_x2): Use
1224         __builtin_memcpy instead of constructing
1225         __builtin_aarch64_simd_oi one vector at a time.
1226         (vst1_u64_x2): Likewise.
1227         (vst1_f64_x2): Likewise.
1228         (vst1_s8_x2): Likewise.
1229         (vst1_p8_x2): Likewise.
1230         (vst1_s16_x2): Likewise.
1231         (vst1_p16_x2): Likewise.
1232         (vst1_s32_x2): Likewise.
1233         (vst1_u8_x2): Likewise.
1234         (vst1_u16_x2): Likewise.
1235         (vst1_u32_x2): Likewise.
1236         (vst1_f16_x2): Likewise.
1237         (vst1_f32_x2): Likewise.
1238         (vst1_p64_x2): Likewise.
1239         (vst1q_s8_x2): Likewise.
1240         (vst1q_p8_x2): Likewise.
1241         (vst1q_s16_x2): Likewise.
1242         (vst1q_p16_x2): Likewise.
1243         (vst1q_s32_x2): Likewise.
1244         (vst1q_s64_x2): Likewise.
1245         (vst1q_u8_x2): Likewise.
1246         (vst1q_u16_x2): Likewise.
1247         (vst1q_u32_x2): Likewise.
1248         (vst1q_u64_x2): Likewise.
1249         (vst1q_f16_x2): Likewise.
1250         (vst1q_f32_x2): Likewise.
1251         (vst1q_f64_x2): Likewise.
1252         (vst1q_p64_x2): Likewise.
1253
1254 2021-07-23  Jonathan Wright  <jonathan.wright@arm.com>
1255
1256         * config/aarch64/arm_neon.h (vst1_s64_x3): Use
1257         __builtin_memcpy instead of constructing
1258         __builtin_aarch64_simd_ci one vector at a time.
1259         (vst1_u64_x3): Likewise.
1260         (vst1_f64_x3): Likewise.
1261         (vst1_s8_x3): Likewise.
1262         (vst1_p8_x3): Likewise.
1263         (vst1_s16_x3): Likewise.
1264         (vst1_p16_x3): Likewise.
1265         (vst1_s32_x3): Likewise.
1266         (vst1_u8_x3): Likewise.
1267         (vst1_u16_x3): Likewise.
1268         (vst1_u32_x3): Likewise.
1269         (vst1_f16_x3): Likewise.
1270         (vst1_f32_x3): Likewise.
1271         (vst1_p64_x3): Likewise.
1272         (vst1q_s8_x3): Likewise.
1273         (vst1q_p8_x3): Likewise.
1274         (vst1q_s16_x3): Likewise.
1275         (vst1q_p16_x3): Likewise.
1276         (vst1q_s32_x3): Likewise.
1277         (vst1q_s64_x3): Likewise.
1278         (vst1q_u8_x3): Likewise.
1279         (vst1q_u16_x3): Likewise.
1280         (vst1q_u32_x3): Likewise.
1281         (vst1q_u64_x3): Likewise.
1282         (vst1q_f16_x3): Likewise.
1283         (vst1q_f32_x3): Likewise.
1284         (vst1q_f64_x3): Likewise.
1285         (vst1q_p64_x3): Likewise.
1286
1287 2021-07-23  H.J. Lu  <hjl.tools@gmail.com>
1288
1289         PR target/101504
1290         * config/i386/i386.c (ix86_gen_scratch_sse_rtx): Don't return
1291         hard register when LRA is in progress.
1292
1293 2021-07-23  Jonathan Wright  <jonathan.wright@arm.com>
1294
1295         * config/aarch64/arm_neon.h (vst1_s8_x4): Use
1296         __builtin_memcpy instead of using a union.
1297         (vst1q_s8_x4): Likewise.
1298         (vst1_s16_x4): Likewise.
1299         (vst1q_s16_x4): Likewise.
1300         (vst1_s32_x4): Likewise.
1301         (vst1q_s32_x4): Likewise.
1302         (vst1_u8_x4): Likewise.
1303         (vst1q_u8_x4): Likewise.
1304         (vst1_u16_x4): Likewise.
1305         (vst1q_u16_x4): Likewise.
1306         (vst1_u32_x4): Likewise.
1307         (vst1q_u32_x4): Likewise.
1308         (vst1_f16_x4): Likewise.
1309         (vst1q_f16_x4): Likewise.
1310         (vst1_f32_x4): Likewise.
1311         (vst1q_f32_x4): Likewise.
1312         (vst1_p8_x4): Likewise.
1313         (vst1q_p8_x4): Likewise.
1314         (vst1_p16_x4): Likewise.
1315         (vst1q_p16_x4): Likewise.
1316         (vst1_s64_x4): Likewise.
1317         (vst1_u64_x4): Likewise.
1318         (vst1_p64_x4): Likewise.
1319         (vst1q_s64_x4): Likewise.
1320         (vst1q_u64_x4): Likewise.
1321         (vst1q_p64_x4): Likewise.
1322         (vst1_f64_x4): Likewise.
1323         (vst1q_f64_x4): Likewise.
1324
1325 2021-07-23  Jonathan Wrightt  <jonathan.wright@arm.com>
1326
1327         * config/aarch64/arm_neon.h (vst2_s64): Use __builtin_memcpy
1328         instead of constructing __builtin_aarch64_simd_oi one vector
1329         at a time.
1330         (vst2_u64): Likewise.
1331         (vst2_f64): Likewise.
1332         (vst2_s8): Likewise.
1333         (vst2_p8): Likewise.
1334         (vst2_s16): Likewise.
1335         (vst2_p16): Likewise.
1336         (vst2_s32): Likewise.
1337         (vst2_u8): Likewise.
1338         (vst2_u16): Likewise.
1339         (vst2_u32): Likewise.
1340         (vst2_f16): Likewise.
1341         (vst2_f32): Likewise.
1342         (vst2_p64): Likewise.
1343         (vst2q_s8): Likewise.
1344         (vst2q_p8): Likewise.
1345         (vst2q_s16): Likewise.
1346         (vst2q_p16): Likewise.
1347         (vst2q_s32): Likewise.
1348         (vst2q_s64): Likewise.
1349         (vst2q_u8): Likewise.
1350         (vst2q_u16): Likewise.
1351         (vst2q_u32): Likewise.
1352         (vst2q_u64): Likewise.
1353         (vst2q_f16): Likewise.
1354         (vst2q_f32): Likewise.
1355         (vst2q_f64): Likewise.
1356         (vst2q_p64): Likewise.
1357
1358 2021-07-23  Jonathan Wright  <jonathan.wright@arm.com>
1359
1360         * config/aarch64/arm_neon.h (vst3_s64): Use __builtin_memcpy
1361         instead of constructing __builtin_aarch64_simd_ci one vector
1362         at a time.
1363         (vst3_u64): Likewise.
1364         (vst3_f64): Likewise.
1365         (vst3_s8): Likewise.
1366         (vst3_p8): Likewise.
1367         (vst3_s16): Likewise.
1368         (vst3_p16): Likewise.
1369         (vst3_s32): Likewise.
1370         (vst3_u8): Likewise.
1371         (vst3_u16): Likewise.
1372         (vst3_u32): Likewise.
1373         (vst3_f16): Likewise.
1374         (vst3_f32): Likewise.
1375         (vst3_p64): Likewise.
1376         (vst3q_s8): Likewise.
1377         (vst3q_p8): Likewise.
1378         (vst3q_s16): Likewise.
1379         (vst3q_p16): Likewise.
1380         (vst3q_s32): Likewise.
1381         (vst3q_s64): Likewise.
1382         (vst3q_u8): Likewise.
1383         (vst3q_u16): Likewise.
1384         (vst3q_u32): Likewise.
1385         (vst3q_u64): Likewise.
1386         (vst3q_f16): Likewise.
1387         (vst3q_f32): Likewise.
1388         (vst3q_f64): Likewise.
1389         (vst3q_p64): Likewise.
1390
1391 2021-07-23  Jonathan Wright  <jonathan.wright@arm.com>
1392
1393         * config/aarch64/arm_neon.h (vst4_s64): Use __builtin_memcpy
1394         instead of constructing __builtin_aarch64_simd_xi one vector
1395         at a time.
1396         (vst4_u64): Likewise.
1397         (vst4_f64): Likewise.
1398         (vst4_s8): Likewise.
1399         (vst4_p8): Likewise.
1400         (vst4_s16): Likewise.
1401         (vst4_p16): Likewise.
1402         (vst4_s32): Likewise.
1403         (vst4_u8): Likewise.
1404         (vst4_u16): Likewise.
1405         (vst4_u32): Likewise.
1406         (vst4_f16): Likewise.
1407         (vst4_f32): Likewise.
1408         (vst4_p64): Likewise.
1409         (vst4q_s8): Likewise.
1410         (vst4q_p8): Likewise.
1411         (vst4q_s16): Likewise.
1412         (vst4q_p16): Likewise.
1413         (vst4q_s32): Likewise.
1414         (vst4q_s64): Likewise.
1415         (vst4q_u8): Likewise.
1416         (vst4q_u16): Likewise.
1417         (vst4q_u32): Likewise.
1418         (vst4q_u64): Likewise.
1419         (vst4q_f16): Likewise.
1420         (vst4q_f32): Likewise.
1421         (vst4q_f64): Likewise.
1422         (vst4q_p64): Likewise.
1423
1424 2021-07-23  Jonathan Wright  <jonathan.wright@arm.com>
1425
1426         * config/aarch64/arm_neon.h (vtbx4_s8): Use __builtin_memcpy
1427         instead of constructing __builtin_aarch64_simd_oi one vector
1428         at a time.
1429         (vtbx4_u8): Likewise.
1430         (vtbx4_p8): Likewise.
1431
1432 2021-07-23  Jonathan Wright  <jonathan.wright@arm.com>
1433
1434         * config/aarch64/arm_neon.h (vtbl3_s8): Use __builtin_memcpy
1435         instead of constructing __builtin_aarch64_simd_oi one vector
1436         at a time.
1437         (vtbl3_u8): Likewise.
1438         (vtbl3_p8): Likewise.
1439         (vtbl4_s8): Likewise.
1440         (vtbl4_u8): Likewise.
1441         (vtbl4_p8): Likewise.
1442
1443 2021-07-23  Jonathan Wright  <jonathan.wright@arm.com>
1444
1445         * config/aarch64/arm_neon.h (vqtbx2_s8): Use __builtin_memcpy
1446         instead of constructing __builtin_aarch64_simd_oi one vector
1447         at a time.
1448         (vqtbx2_u8): Likewise.
1449         (vqtbx2_p8): Likewise.
1450         (vqtbx2q_s8): Likewise.
1451         (vqtbx2q_u8): Likewise.
1452         (vqtbx2q_p8): Likewise.
1453         (vqtbx3_s8): Use __builtin_memcpy instead of constructing
1454         __builtin_aarch64_simd_ci one vector at a time.
1455         (vqtbx3_u8): Likewise.
1456         (vqtbx3_p8): Likewise.
1457         (vqtbx3q_s8): Likewise.
1458         (vqtbx3q_u8): Likewise.
1459         (vqtbx3q_p8): Likewise.
1460         (vqtbx4_s8): Use __builtin_memcpy instead of constructing
1461         __builtin_aarch64_simd_xi one vector at a time.
1462         (vqtbx4_u8): Likewise.
1463         (vqtbx4_p8): Likewise.
1464         (vqtbx4q_s8): Likewise.
1465         (vqtbx4q_u8): Likewise.
1466         (vqtbx4q_p8): Likewise.
1467
1468 2021-07-23  Jonathan Wright  <jonathan.wright@arm.com>
1469
1470         * config/aarch64/arm_neon.h (vqtbl2_s8): Use __builtin_memcpy
1471         instead of constructing __builtin_aarch64_simd_oi one vector
1472         at a time.
1473         (vqtbl2_u8): Likewise.
1474         (vqtbl2_p8): Likewise.
1475         (vqtbl2q_s8): Likewise.
1476         (vqtbl2q_u8): Likewise.
1477         (vqtbl2q_p8): Likewise.
1478         (vqtbl3_s8): Use __builtin_memcpy instead of constructing
1479         __builtin_aarch64_simd_ci one vector at a time.
1480         (vqtbl3_u8): Likewise.
1481         (vqtbl3_p8): Likewise.
1482         (vqtbl3q_s8): Likewise.
1483         (vqtbl3q_u8): Likewise.
1484         (vqtbl3q_p8): Likewise.
1485         (vqtbl4_s8): Use __builtin_memcpy instead of constructing
1486         __builtin_aarch64_simd_xi one vector at a time.
1487         (vqtbl4_u8): Likewise.
1488         (vqtbl4_p8): Likewise.
1489         (vqtbl4q_s8): Likewise.
1490         (vqtbl4q_u8): Likewise.
1491         (vqtbl4q_p8): Likewise.
1492
1493 2021-07-23  Haochen Gui  <guihaoc@gcc.gnu.org>
1494
1495         PR target/100952
1496         * config/rs6000/rs6000.md (cstore<mode>4): Fix wrong fall through.
1497
1498 2021-07-22  Andrew Pinski  <apinski@marvell.com>
1499
1500         PR tree-optimization/10153
1501         * tree-tailcall.c (create_tailcall_accumulator):
1502         Don't call fold_convert as the type should be correct already.
1503         (tree_optimize_tail_calls_1): Use build_{one,zero}_cst instead
1504         of integer_{one,zero}_node for the call of create_tailcall_accumulator.
1505
1506 2021-07-22  Aldy Hernandez  <aldyh@redhat.com>
1507
1508         * gimple-range-cache.cc (non_null_ref::adjust_range): Replace
1509         varying_p check for null/non-null check.
1510
1511 2021-07-22  Andrew MacLeod  <amacleod@redhat.com>
1512
1513         PR tree-optimization/101511
1514         * value-relation.cc (relation_oracle::query_relation): Check if ssa1
1515         is in ssa2's equiv set, and don't trap if so.
1516
1517 2021-07-22  Andrew MacLeod  <amacleod@redhat.com>
1518
1519         PR tree-optimization/101497
1520         * gimple-range-fold.cc (fold_using_range::range_of_cond_expr): Check
1521         for undefined.
1522
1523 2021-07-22  Andrew MacLeod  <amacleod@redhat.com>
1524
1525         PR tree-optimization/101496
1526         * vr-values.c (simplify_using_ranges::fold_cond): Call range_of_stmt
1527         first, then vrp_visit_cond_Stmt.
1528
1529 2021-07-22  liuhongt  <hongtao.liu@intel.com>
1530
1531         * config/i386/i386-expand.c
1532         (ix86_broadcast_from_integer_constant): Rename to ..
1533         (ix86_broadcast_from_constant): .. this, and extend it to
1534         handle float mode.
1535         (ix86_expand_vector_move): Extend to float mode.
1536         * config/i386/i386-features.c
1537         (replace_constant_pool_with_broadcast): Remove.
1538         (remove_partial_avx_dependency_gate): Ditto.
1539         (constant_pool_broadcast): Ditto.
1540         (class pass_constant_pool_broadcast): Ditto.
1541         (make_pass_constant_pool_broadcast): Ditto.
1542         (remove_partial_avx_dependency): Adjust gate.
1543         * config/i386/i386-passes.def: Remove pass_constant_pool_broadcast.
1544         * config/i386/i386-protos.h
1545         (make_pass_constant_pool_broadcast): Remove.
1546
1547 2021-07-22  liuhongt  <hongtao.liu@intel.com>
1548
1549         * config/i386/constraints.md (Wb): New constraint.
1550         (Ww): Ditto.
1551         * config/i386/i386.md (*ashlhi3_1): Extend to avx512 mask
1552         shift.
1553         (*ashlqi3_1): Ditto.
1554         (*<insn><mode>3_1): Split to ..
1555         (*ashr<mode>3_1): this, ...
1556         (*lshr<mode>3_1): and this, also extend this pattern to avx512
1557         mask registers.
1558         (*<insn><mode>3_1): Split to ..
1559         (*ashr<mode>3_1): this, ...
1560         (*lshrqi3_1): and this, also extend this pattern to avx512
1561         mask registers.
1562         (*lshrhi3_1): And this, also extend this pattern to avx512
1563         mask registers.
1564         * config/i386/sse.md (k<code><mode>): New define_split after
1565         it to convert generic shift pattern to mask shift ones.
1566
1567 2021-07-21  Thomas Schwinge  <thomas@codesourcery.com>
1568             Joseph Myers  <joseph@codesourcery.com>
1569             Cesar Philippidis  <cesar@codesourcery.com>
1570
1571         * tree-core.h (omp_clause_code): Add 'OMP_CLAUSE_NOHOST'.
1572         * tree.c (omp_clause_num_ops, omp_clause_code_name, walk_tree_1):
1573         Handle it.
1574         * tree-pretty-print.c (dump_omp_clause): Likewise.
1575         * omp-general.c (oacc_verify_routine_clauses): Likewise.
1576         * gimplify.c (gimplify_scan_omp_clauses)
1577         (gimplify_adjust_omp_clauses): Likewise.
1578         * tree-nested.c (convert_nonlocal_omp_clauses)
1579         (convert_local_omp_clauses): Likewise.
1580         * omp-low.c (scan_sharing_clauses): Likewise.
1581         * omp-offload.c (execute_oacc_device_lower): Update.
1582
1583 2021-07-21  Martin Sebor  <msebor@redhat.com>
1584
1585         * tree-ssa-alias.c (walk_aliased_vdefs_1): Fix typos in a comment.
1586
1587 2021-07-21  Bill Schmidt  <wschmidt@linux.ibm.com>
1588
1589         * config/rs6000/rs6000-gen-builtins.c (write_init_bif_table):
1590         Implement.
1591
1592 2021-07-21  Bill Schmidt  <wschmidt@linux.ibm.com>
1593
1594         * config/rs6000/rs6000-gen-builtins.c (write_fntype): New
1595         callback function.
1596         (write_fntype_init): New stub function.
1597         (write_init_bif_table): Likewise.
1598         (write_init_ovld_table): New function.
1599         (write_init_file): Implement.
1600
1601 2021-07-21  Bill Schmidt  <wschmidt@linux.ibm.com>
1602
1603         * config/rs6000/rs6000-gen-builtins.c
1604         (write_autogenerated_header): New function.
1605         (write_decls): Likewise.
1606         (write_extern_fntype): New callback function.
1607         (write_header_file): Implement.
1608
1609 2021-07-21  Bill Schmidt  <wschmidt@linux.ibm.com>
1610
1611         * config/rs6000/rs6000-gen-builtins.c (write_defines_file):
1612         Implement.
1613
1614 2021-07-21  Bill Schmidt  <wschmidt@linux.ibm.com>
1615
1616         * config/rs6000/rs6000-gen-builtins.c (complete_vector_type): New
1617         function.
1618         (complete_base_type): Likewise.
1619         (construct_fntype_id): Likewise.
1620         (parse_bif_entry): Call contruct_fntype_id.
1621         (parse_ovld_entry): Likewise.
1622
1623 2021-07-21  Bill Schmidt  <wschmidt@linux.ibm.com>
1624
1625         * config/rs6000/rs6000-gen-builtins.c (ovld_stanza): New struct.
1626         (MAXOVLDSTANZAS): New macro.
1627         (ovld_stanzas): New variable.
1628         (curr_ovld_stanza): Likewise.
1629         (MAXOVLDS): New macro.
1630         (ovlddata): New struct.
1631         (ovlds): New variable.
1632         (curr_ovld): Likewise.
1633         (max_ovld_args): Likewise.
1634         (parse_ovld_entry): New function.
1635         (parse_ovld_stanza): Likewise.
1636         (parse_ovld): Implement.
1637
1638 2021-07-21  Bill Schmidt  <wschmidt@linux.ibm.com>
1639
1640         * config/rs6000/rs6000-gen-builtins.c (parse_bif_attrs):
1641         Implement.
1642
1643 2021-07-21  Bill Schmidt  <wschmidt@linux.ibm.com>
1644
1645         * config/rs6000/rs6000-gen-builtins.c (parse_args): New function.
1646         (parse_prototype): Implement.
1647
1648 2021-07-21  Bill Schmidt  <wschmidt@linux.ibm.com>
1649
1650         * config/rs6000/rs6000-gen-builtins.c (bif_stanza): New enum.
1651         (curr_bif_stanza): New variable.
1652         (stanza_entry): New struct.
1653         (stanza_map): New initialized variable.
1654         (enable_string): Likewise.
1655         (fnkinds): New enum.
1656         (typelist): New struct.
1657         (attrinfo): Likewise.
1658         (MAXRESTROPNDS): New macro.
1659         (prototype): New struct.
1660         (MAXBIFS): New macro.
1661         (bifdata): New struct.
1662         (bifs): New variable.
1663         (curr_bif): Likewise.
1664         (bif_order): Likewise.
1665         (bif_index): Likewise.
1666         (fatal): New function.
1667         (stanza_name_to_stanza): Likewise.
1668         (parse_bif_attrs): New stub function.
1669         (parse_prototype): Likewise.
1670         (parse_bif_entry): New function.
1671         (parse_bif_stanza): Likewise.
1672         (parse_bif): Implement.
1673         (set_bif_order): New function.
1674         (create_bif_order): Implement.
1675
1676 2021-07-21  Bill Schmidt  <wschmidt@linux.ibm.com>
1677
1678         * config/rs6000/rs6000-gen-builtins.c (rbtree.h): New #include.
1679         (num_bifs): New variable.
1680         (num_ovld_stanzas): Likewise.
1681         (num_ovlds): Likewise.
1682         (parse_codes): New enum.
1683         (bif_rbt): New variable.
1684         (ovld_rbt): Likewise.
1685         (fntype_rbt): Likewise.
1686         (bifo_rbt): Likewise.
1687         (parse_bif): New stub function.
1688         (create_bif_order): Likewise.
1689         (parse_ovld): Likewise.
1690         (write_header_file): Likewise.
1691         (write_init_file): Likewise.
1692         (write_defines_file): Likewise.
1693         (delete_output_files): New function.
1694         (main): Likewise.
1695
1696 2021-07-21  H.J. Lu  <hjl.tools@gmail.com>
1697
1698         PR target/101549
1699         * config/i386/i386-builtin.def: Remove OPTION_MASK_ISA_SSE4_2
1700         from CRC32 _builtin functions.
1701
1702 2021-07-21  Sebastian Huber  <sebastian.huber@embedded-brains.de>
1703
1704         * coverage.c (build_gcov_info_var_registration): Mark the object placed
1705         in the linker set as referenced so that it does not get optimized away.
1706
1707 2021-07-21  Kito Cheng  <kito.cheng@sifive.com>
1708
1709         Revert:
1710         2021-07-20  Kito Cheng  <kito.cheng@sifive.com>
1711
1712         * config.gcc (riscv*-*-*): Detect which python is available.
1713
1714 2021-07-21  Jakub Jelinek  <jakub@redhat.com>
1715
1716         PR middle-end/101535
1717         * gimplify.c (omp_check_private): Properly skip ORT_TARGET_DATA
1718         contexts in which decl isn't privatized and for ORT_TARGET return
1719         false if decl is mapped.
1720
1721 2021-07-21  Richard Sandiford  <richard.sandiford@arm.com>
1722
1723         * gimple-loop-jam.c: Include tree-ssa-sccvn.h.
1724         (tree_loop_unroll_and_jam): Run value-numbering on a loop that
1725         has been successfully unrolled.
1726
1727 2021-07-21  Richard Sandiford  <richard.sandiford@arm.com>
1728
1729         * tree-ssa-loop-manip.c (determine_exit_conditions): Return a null
1730         exit condition if no tail loop is needed, and if the original exit
1731         condition should therefore be kept as-is.
1732         (tree_transform_and_unroll_loop): Handle that case here too.
1733
1734 2021-07-21  Kewen Lin  <linkw@linux.ibm.com>
1735
1736         * tree-data-ref.c (free_dependence_relations): Adjust to pass vec
1737         by reference.
1738         (free_data_refs): Likewise.
1739         * tree-data-ref.h (free_dependence_relations): Likewise.
1740         (free_data_refs): Likewise.
1741         * tree-predcom.c (struct chain): Use auto_vec instead of vec for
1742         members.
1743         (struct component): Likewise.
1744         (pcom_worker::pcom_worker): Adjust for auto_vec and renaming changes.
1745         (pcom_worker::~pcom_worker): Likewise.
1746         (pcom_worker::release_chain): Adjust as auto_vec changes.
1747         (pcom_worker::loop): Rename to ...
1748         (pcom_worker::m_loop): ... this.
1749         (pcom_worker::datarefs): Rename to ...
1750         (pcom_worker::m_datarefs): ... this.  Use auto_vec instead of vec.
1751         (pcom_worker::dependences): Rename to ...
1752         (pcom_worker::m_dependences): ... this.  Use auto_vec instead of vec.
1753         (pcom_worker::chains): Rename to ...
1754         (pcom_worker::m_chains): ... this.  Use auto_vec instead of vec.
1755         (pcom_worker::looparound_phis): Rename to ...
1756         (pcom_worker::m_looparound_phis): ... this.  Use auto_vec instead of
1757         vec.
1758         (pcom_worker::cache): Rename to ...
1759         (pcom_worker::m_cache): ... this.  Use auto_vec instead of vec.
1760         (pcom_worker::release_chain): Adjust for auto_vec changes.
1761         (pcom_worker::release_chains): Adjust for auto_vec and renaming
1762         changes.
1763         (release_component): Remove.
1764         (release_components): Adjust for release_component removal.
1765         (component_of): Adjust to use vec.
1766         (merge_comps): Likewise.
1767         (pcom_worker::aff_combination_dr_offset): Adjust for renaming changes.
1768         (pcom_worker::determine_offset): Likewise.
1769         (class comp_ptrs): Remove.
1770         (pcom_worker::split_data_refs_to_components): Adjust for renaming
1771         changes, for comp_ptrs removal with auto_vec.
1772         (pcom_worker::suitable_component_p): Adjust for renaming changes.
1773         (pcom_worker::filter_suitable_components): Adjust for release_component
1774         removal.
1775         (pcom_worker::valid_initializer_p): Adjust for renaming changes.
1776         (pcom_worker::find_looparound_phi): Likewise.
1777         (pcom_worker::add_looparound_copies): Likewise.
1778         (pcom_worker::determine_roots_comp): Likewise.
1779         (pcom_worker::single_nonlooparound_use): Likewise.
1780         (pcom_worker::execute_pred_commoning_chain): Likewise.
1781         (pcom_worker::execute_pred_commoning): Likewise.
1782         (pcom_worker::try_combine_chains): Likewise.
1783         (pcom_worker::prepare_initializers_chain): Likewise.
1784         (pcom_worker::prepare_initializers): Likewise.
1785         (pcom_worker::prepare_finalizers_chain): Likewise.
1786         (pcom_worker::prepare_finalizers): Likewise.
1787         (pcom_worker::tree_predictive_commoning_loop): Likewise.
1788
1789 2021-07-20  Martin Sebor  <msebor@redhat.com>
1790
1791         PR middle-end/101397
1792         * builtins.c (gimple_call_return_array): Add argument.  Correct
1793         offsets for memchr, mempcpy, stpcpy, and stpncpy.
1794         (compute_objsize_r): Adjust offset computation for argument returning
1795         built-ins.
1796
1797 2021-07-20  Martin Sebor  <msebor@redhat.com>
1798
1799         PR middle-end/101300
1800         * tree-ssa-uninit.c (check_defs): Handle UBSAN built-ins.
1801
1802 2021-07-20  Jeff Law  <jlaw@localhost.localdomain>
1803
1804         * function.c (assign_parm_setup_block): Use adjust_address instead
1805         of change_address to preserve MEM_EXPR and friends.
1806
1807 2021-07-20  Martin Sebor  <msebor@redhat.com>
1808
1809         * cfgloop.h (single_likely_exit): Adjust by-value argument to
1810         by-const-reference.
1811         * cfgloopanal.c (single_likely_exit): Same.
1812         * cgraph.h (struct cgraph_node): Same.
1813         * cgraphclones.c (cgraph_node::create_virtual_clone): Same.
1814         * genautomata.c (merge_states): Same.
1815         * genextract.c (VEC_char_to_string): Same.
1816         * genmatch.c (dt_node::gen_kids_1): Same.
1817         (walk_captures): Adjust by-value argument to by-reference.
1818         * gimple-ssa-store-merging.c (check_no_overlap): Adjust by-value argument
1819         to by-const-reference.
1820         * gimple.c (gimple_build_call_vec): Same.
1821         (gimple_build_call_internal_vec): Same.
1822         (gimple_build_switch): Same.
1823         (sort_case_labels): Same.
1824         (preprocess_case_label_vec_for_gimple): Adjust by-value argument to
1825         by-reference.
1826         * gimple.h (gimple_build_call_vec): Adjust by-value argument to
1827         by-const-reference.
1828         (gimple_build_call_internal_vec): Same.
1829         (gimple_build_switch): Same.
1830         (sort_case_labels): Same.
1831         (preprocess_case_label_vec_for_gimple): Adjust by-value argument to
1832         by-reference.
1833         * haifa-sched.c (calc_priorities): Adjust by-value argument to
1834         by-const-reference.
1835         (sched_init_luids): Same.
1836         (haifa_init_h_i_d): Same.
1837         * ipa-cp.c (ipa_get_indirect_edge_target_1): Same.
1838         (adjust_callers_for_value_intersection): Adjust by-value argument to
1839         by-reference.
1840         (find_more_scalar_values_for_callers_subset): Adjust by-value argument to
1841         by-const-reference.
1842         (find_more_contexts_for_caller_subset): Same.
1843         (find_aggregate_values_for_callers_subset): Same.
1844         (copy_useful_known_contexts): Same.
1845         * ipa-fnsummary.c (remap_edge_summaries): Same.
1846         (remap_freqcounting_predicate): Same.
1847         * ipa-inline.c (add_new_edges_to_heap): Adjust by-value argument to
1848         by-reference.
1849         * ipa-predicate.c (predicate::remap_after_inlining): Adjust by-value argument
1850         to by-const-reference.
1851         * ipa-predicate.h (predicate::remap_after_inlining): Same.
1852         * ipa-prop.c (ipa_find_agg_cst_for_param): Same.
1853         * ipa-prop.h (ipa_find_agg_cst_for_param): Same.
1854         * ira-build.c (ira_loop_tree_body_rev_postorder): Same.
1855         * read-rtl.c (add_overload_instance): Same.
1856         * rtl.h (native_decode_rtx): Same.
1857         (native_decode_vector_rtx): Same.
1858         * sched-int.h (sched_init_luids): Same.
1859         (haifa_init_h_i_d): Same.
1860         * simplify-rtx.c (native_decode_vector_rtx): Same.
1861         (native_decode_rtx): Same.
1862         * tree-call-cdce.c (gen_shrink_wrap_conditions): Same.
1863         (shrink_wrap_one_built_in_call_with_conds): Same.
1864         (shrink_wrap_conditional_dead_built_in_calls): Same.
1865         * tree-data-ref.c (create_runtime_alias_checks): Same.
1866         (compute_all_dependences): Same.
1867         * tree-data-ref.h (compute_all_dependences): Same.
1868         (create_runtime_alias_checks): Same.
1869         (index_in_loop_nest): Same.
1870         * tree-if-conv.c (mask_exists): Same.
1871         * tree-loop-distribution.c (class loop_distribution): Same.
1872         (loop_distribution::create_rdg_vertices): Same.
1873         (dump_rdg_partitions): Same.
1874         (debug_rdg_partitions): Same.
1875         (partition_contains_all_rw): Same.
1876         (loop_distribution::distribute_loop): Same.
1877         * tree-parloops.c (oacc_entry_exit_ok_1): Same.
1878         (oacc_entry_exit_single_gang): Same.
1879         * tree-ssa-loop-im.c (hoist_memory_references): Same.
1880         (loop_suitable_for_sm): Same.
1881         * tree-ssa-loop-niter.c (bound_index): Same.
1882         * tree-ssa-reassoc.c (update_ops): Same.
1883         (swap_ops_for_binary_stmt): Same.
1884         (rewrite_expr_tree): Same.
1885         (rewrite_expr_tree_parallel): Same.
1886         * tree-ssa-sccvn.c (ao_ref_init_from_vn_reference): Same.
1887         * tree-ssa-sccvn.h (ao_ref_init_from_vn_reference): Same.
1888         * tree-ssa-structalias.c (process_all_all_constraints): Same.
1889         (make_constraints_to): Same.
1890         (handle_lhs_call): Same.
1891         (find_func_aliases_for_builtin_call): Same.
1892         (sort_fieldstack): Same.
1893         (check_for_overlaps): Same.
1894         * tree-vect-loop-manip.c (vect_create_cond_for_align_checks): Same.
1895         (vect_create_cond_for_unequal_addrs): Same.
1896         (vect_create_cond_for_lower_bounds): Same.
1897         (vect_create_cond_for_alias_checks): Same.
1898         * tree-vect-slp-patterns.c (vect_validate_multiplication): Same.
1899         * tree-vect-slp.c (vect_analyze_slp_instance): Same.
1900         (vect_make_slp_decision): Same.
1901         (vect_slp_bbs): Same.
1902         (duplicate_and_interleave): Same.
1903         (vect_transform_slp_perm_load): Same.
1904         (vect_schedule_slp): Same.
1905         * tree-vectorizer.h (vect_transform_slp_perm_load): Same.
1906         (vect_schedule_slp): Same.
1907         (duplicate_and_interleave): Same.
1908         * tree.c (build_vector_from_ctor): Same.
1909         (build_vector): Same.
1910         (check_vector_cst): Same.
1911         (check_vector_cst_duplicate): Same.
1912         (check_vector_cst_fill): Same.
1913         (check_vector_cst_stepped): Same.
1914         * tree.h (build_vector_from_ctor): Same.
1915
1916 2021-07-20  Jakub Jelinek  <jakub@redhat.com>
1917
1918         PR target/101384
1919         * config/rs6000/rs6000-protos.h (easy_altivec_constant): Change return
1920         type from bool to int.
1921         * config/rs6000/rs6000.c (vspltis_constant): Fix up handling the
1922         EASY_VECTOR_MSB case if either step or copies is not 1.
1923         (vspltis_shifted): Fix comment typo.
1924         (easy_altivec_constant): Change return type from bool to int, instead
1925         of returning true return byte size of the element mode that should be
1926         used to synthetize the constant.
1927         * config/rs6000/predicates.md (easy_vector_constant_msb): Require
1928         that vspltis_shifted is 0, handle the case where easy_altivec_constant
1929         assumes using different vector mode from CONST_VECTOR's mode.
1930         * config/rs6000/altivec.md (easy_vector_constant_msb splitter): Use
1931         easy_altivec_constant to determine mode in which -1 >> -1 should be
1932         performed, use rs6000_expand_vector_init instead of gen_vec_initv4sisi.
1933
1934 2021-07-20  Richard Biener  <rguenther@suse.de>
1935
1936         PR debug/101473
1937         * dwarf2out.h (dwarf_file_data): Add key member.
1938         * dwarf2out.c (dwarf_file_hasher::equal): Compare key.
1939         (dwarf_file_hasher::hash): Hash key.
1940         (lookup_filename): Remap the filename and store it in the
1941         filename member of dwarf_file_data when creating a new
1942         dwarf_file_data.
1943         (file_name_acquire): Do not remap the filename again.
1944         (maybe_emit_file): Likewise.
1945
1946 2021-07-20  Jonathan Wright  <jonathan.wright@arm.com>
1947
1948         * config/aarch64/aarch64-simd-builtins.def: Use two variant
1949         generators for all TBL/TBX intrinsics and rename to
1950         consistent forms: qtbl[1234] or qtbx[1234].
1951         * config/aarch64/aarch64-simd.md (aarch64_tbl1<mode>):
1952         Rename to...
1953         (aarch64_qtbl1<mode>): This.
1954         (aarch64_tbx1<mode>): Rename to...
1955         (aarch64_qtbx1<mode>): This.
1956         (aarch64_tbl2v16qi): Delete.
1957         (aarch64_tbl3<mode>): Rename to...
1958         (aarch64_qtbl2<mode>): This.
1959         (aarch64_tbx4<mode>): Rename to...
1960         (aarch64_qtbx2<mode>): This.
1961         * config/aarch64/aarch64.c (aarch64_expand_vec_perm_1): Use
1962         renamed qtbl1 and qtbl2 RTL patterns.
1963         * config/aarch64/arm_neon.h (vqtbl1_p8): Use renamed qtbl1
1964         RTL pattern.
1965         (vqtbl1_s8): Likewise.
1966         (vqtbl1_u8): Likewise.
1967         (vqtbl1q_p8): Likewise.
1968         (vqtbl1q_s8): Likewise.
1969         (vqtbl1q_u8): Likewise.
1970         (vqtbx1_s8): Use renamed qtbx1 RTL pattern.
1971         (vqtbx1_u8): Likewise.
1972         (vqtbx1_p8): Likewise.
1973         (vqtbx1q_s8): Likewise.
1974         (vqtbx1q_u8): Likewise.
1975         (vqtbx1q_p8): Likewise.
1976         (vtbl1_s8): Use renamed qtbl1 RTL pattern.
1977         (vtbl1_u8): Likewise.
1978         (vtbl1_p8): Likewise.
1979         (vtbl2_s8): Likewise
1980         (vtbl2_u8): Likewise.
1981         (vtbl2_p8): Likewise.
1982         (vtbl3_s8): Use renamed qtbl2 RTL pattern.
1983         (vtbl3_u8): Likewise.
1984         (vtbl3_p8): Likewise.
1985         (vtbl4_s8): Likewise.
1986         (vtbl4_u8): Likewise.
1987         (vtbl4_p8): Likewise.
1988         (vtbx2_s8): Use renamed qtbx2 RTL pattern.
1989         (vtbx2_u8): Likewise.
1990         (vtbx2_p8): Likewise.
1991         (vqtbl2_s8): Use renamed qtbl2 RTL pattern.
1992         (vqtbl2_u8): Likewise.
1993         (vqtbl2_p8): Likewise.
1994         (vqtbl2q_s8): Likewise.
1995         (vqtbl2q_u8): Likewise.
1996         (vqtbl2q_p8): Likewise.
1997         (vqtbx2_s8): Use renamed qtbx2 RTL pattern.
1998         (vqtbx2_u8): Likewise.
1999         (vqtbx2_p8): Likewise.
2000         (vqtbx2q_s8): Likewise.
2001         (vqtbx2q_u8): Likewise.
2002         (vqtbx2q_p8): Likewise.
2003         (vtbx4_s8): Likewise.
2004         (vtbx4_u8): Likewise.
2005         (vtbx4_p8): Likewise.
2006
2007 2021-07-20  Uroš Bizjak  <ubizjak@gmail.com>
2008
2009         PR target/100182
2010         * config/i386/sync.md (define_peephole2 atomic_storedi_fpu):
2011         Remove.
2012         (define_peephole2 atomic_loaddi_fpu): Ditto.
2013
2014 2021-07-20  Kito Cheng  <kito.cheng@sifive.com>
2015
2016         * config.gcc (riscv*-*-*): Detect which python is available.
2017
2018 2021-07-20  Kewen Lin  <linkw@linux.ibm.com>
2019
2020         * config/rs6000/vsx.md (mulhs_<mode>): Rename to...
2021         (smul<mode>3_highpart): ... this.
2022         (mulhu_<mode>): Rename to...
2023         (umul<mode>3_highpart): ... this.
2024         * config/rs6000/rs6000-builtin.def (MULHS_V2DI, MULHS_V4SI,
2025         MULHU_V2DI, MULHU_V4SI): Adjust.
2026
2027 2021-07-20  Kewen Lin  <linkw@linux.ibm.com>
2028
2029         PR tree-optimization/100696
2030         * internal-fn.c (first_commutative_argument): Add info for IFN_MULH.
2031         * internal-fn.def (IFN_MULH): New internal function.
2032         * tree-vect-patterns.c (vect_recog_mulhs_pattern): Add support to
2033         recog normal multiply highpart as IFN_MULH.
2034         * config/i386/i386.c (ix86_add_stmt_cost): Adjust for combined
2035         function CFN_MULH.
2036
2037 2021-07-19  Indu Bhagat  <indu.bhagat@oracle.com>
2038
2039         * config/elfos.h (CTF_DEBUGGING_INFO): New definition.
2040         (BTF_DEBUGGING_INFO): Likewise.
2041         * doc/tm.texi.in: Document the new macros.
2042         * doc/tm.texi: Regenerated.
2043         * toplev.c: Guard initialization of debug hooks.
2044
2045 2021-07-19  Indu Bhagat  <indu.bhagat@oracle.com>
2046
2047         * flags.h (ctf_debuginfo_p): New function declaration.
2048         * opts.c (ctf_debuginfo_p): New function definition.
2049
2050 2021-07-19  Andrew Stubbs  <ams@codesourcery.com>
2051
2052         PR target/100208
2053         * config/gcn/gcn-hsa.h (DRIVER_SELF_SPECS): New.
2054         (ASM_SPEC): Set -mattr for xnack and sram-ecc.
2055         * config/gcn/gcn-opts.h (enum sram_ecc_type): New.
2056         * config/gcn/gcn-valu.md: Add a warning comment.
2057         * config/gcn/gcn.c (gcn_option_override): Add "sorry" for -mxnack.
2058         (output_file_start): Add xnack and sram-ecc state to ".amdgcn_target".
2059         * config/gcn/gcn.md: Add a warning comment.
2060         * config/gcn/gcn.opt: Add -mxnack and -msram-ecc.
2061         * config/gcn/mkoffload.c (EF_AMDGPU_MACH_AMDGCN_GFX908): Remove
2062         SRAM-ECC flag.
2063         (EF_AMDGPU_XNACK): New.
2064         (EF_AMDGPU_SRAM_ECC): New.
2065         (elf_flags): New.
2066         (copy_early_debug_info): Use elf_flags.
2067         (main): Handle -mxnack and -msram-ecc options.
2068         * doc/invoke.texi: Document -mxnack and -msram-ecc.
2069
2070 2021-07-19  Andrew Pinski  <apinski@marvell.com>
2071
2072         PR target/101205
2073         * config/aarch64/aarch64.md (csneg3_uxtw_insn): Rename to ...
2074         (*cs<neg_not_cs>3_uxtw_insn4): and extend to NEG_NOT.
2075
2076 2021-07-19  Richard Biener  <rguenther@suse.de>
2077
2078         PR tree-optimization/101505
2079         * tree-vect-patterns.c (vect_determine_precisions): Walk
2080         PHIs also for loop vectorization.
2081
2082 2021-07-19  Richard Biener  <rguenther@suse.de>
2083
2084         * gimple.h (gimple_expr_type): Remove.
2085         * doc/gimple.texi: Remove gimple_expr_type documentation.
2086
2087 2021-07-19  Richard Biener  <rguenther@suse.de>
2088
2089         * tree-ssa-sccvn.c (vn_reference_eq): Handle NULL vr->type.
2090         (ao_ref_init_from_vn_reference): Likewise.
2091         (fully_constant_reference): Likewise.
2092         (vn_reference_lookup_call): Do not set vr->type to random
2093         values.
2094         * tree-ssa-pre.c (compute_avail): Do not try to PRE calls
2095         without a value.
2096         * tree-vect-generic.c (expand_vector_piecewise): Pass in
2097         whether we expanded parallel.
2098         (expand_vector_parallel): Adjust.
2099         (expand_vector_addition): Likewise.
2100         (expand_vector_comparison): Likewise.
2101         (expand_vector_operation): Likewise.
2102         (expand_vector_scalar_condition): Likewise.
2103         (expand_vector_conversion): Likewise.
2104
2105 2021-07-19  Richard Biener  <rguenther@suse.de>
2106
2107         * tree-vrp.c (register_edge_assert_for_2): Use the
2108         type from the LHS.
2109         (vrp_folder::fold_predicate_in): Likewise.
2110         * vr-values.c (gimple_assign_nonzero_p): Likewise.
2111         (vr_values::extract_range_from_comparison): Likewise.
2112         (vr_values::extract_range_from_ubsan_builtin): Use the
2113         type of the first operand.
2114         (vr_values::extract_range_basic): Push down type
2115         computation, use the appropriate LHS.
2116         (vr_values::extract_range_from_assignment): Use the
2117         type of the LHS.
2118
2119 2021-07-18  H.J. Lu  <hjl.tools@gmail.com>
2120
2121         PR target/101492
2122         * common/config/i386/i386-common.c (ix86_handle_option): For
2123         -mgeneral-regs-only, enable the GPR only instructions which are
2124         enabled implicitly by SSE ISAs unless they have been disabled
2125         explicitly.
2126
2127 2021-07-18  H.J. Lu  <hjl.tools@gmail.com>
2128
2129         PR target/101495
2130         * config/i386/i386.c (ix86_check_avx_upper_stores): Moved before
2131         ix86_avx_u128_mode_needed.
2132         (ix86_avx_u128_mode_needed): Return AVX_U128_DIRTY if callee
2133         returns AVX register.
2134
2135 2021-07-17  Jan Hubicka  <hubicka@ucw.cz>
2136
2137         * tree-ssa-structalias.c (handle_rhs_call): Support EAF_NOT_RETURNED.
2138         (handle_const_call): Liekise
2139         (handle_pure_call): Liekise
2140
2141 2021-07-17  Andrew MacLeod  <amacleod@redhat.com>
2142
2143         PR tree-optimization/96542
2144         * range-op.cc (range_operator::wi_fold_in_parts): New.
2145         (range_operator::fold_range): Call wi_fold_in_parts.
2146         (operator_lshift::wi_fold): Fix broken lshift by [0,0].
2147         * range-op.h (wi_fold_in_parts): Add prototype.
2148
2149 2021-07-16  David Malcolm  <dmalcolm@redhat.com>
2150
2151         * doc/analyzer.texi: Add __analyzer_dump_state.
2152
2153 2021-07-16  Bill Schmidt  <wschmidt@linux.ibm.com>
2154
2155         * config/rs6000/rbtree.c: New file.
2156         * config/rs6000/rbtree.h: New file.
2157
2158 2021-07-16  Bill Schmidt  <wschmidt@linux.ibm.com>
2159
2160         * config/rs6000/rs6000-gen-builtins.c (restriction): New enum.
2161         (typeinfo): Add restr field.
2162         (match_bracketed_pair): New function.
2163         (match_const_restriction): Implement.
2164
2165 2021-07-16  Bill Schmidt  <wschmidt@linux.ibm.com>
2166
2167         * config/rs6000/rs6000-gen-builtins.c (match_basetype): Implement.
2168
2169 2021-07-16  Bill Schmidt  <wschmidt@linux.ibm.com>
2170
2171         * config/rs6000/rs6000-gen-builtins.c (void_status): New enum.
2172         (basetype): Likewise.
2173         (typeinfo): Likewise.
2174         (handle_pointer): New function.
2175         (match_basetype): New stub function.
2176         (match_const_restriction): Likewise.
2177         (match_type): New function.
2178
2179 2021-07-16  Bill Schmidt  <wschmidt@linux.ibm.com>
2180
2181         * config/rs6000/rs6000-gen-builtins.c (consume_whitespace): New
2182         function.
2183         (advance_line): Likewise.
2184         (safe_inc_pos): Likewise.
2185         (match_identifier): Likewise.
2186         (match_integer): Likewise.
2187         (match_to_right_bracket): Likewise.
2188
2189 2021-07-16  Bill Schmidt  <wschmidt@linux.ibm.com>
2190
2191         * config/rs6000/rs6000-gen-builtins.c (bif_file): New variable.
2192         (ovld_file): Likewise.
2193         (header_file): Likewise.
2194         (init_file): Likewise.
2195         (defines_file): Likewise.
2196         (pgm_path): Likewise.
2197         (bif_path): Likewise.
2198         (ovld_path): Likewise.
2199         (header_path): Likewise.
2200         (init_path): Likewise.
2201         (defines_path): Likewise.
2202         (LINELEN): New macro.
2203         (linebuf): New variable.
2204         (line): Likewise.
2205         (pos): Likewise.
2206         (diag): Likewise.
2207         (bif_diag): New function.
2208         (ovld_diag): Likewise.
2209
2210 2021-07-16  Bill Schmidt  <wschmidt@linux.ibm.com>
2211
2212         * config/rs6000/rs6000-builtin-new.def: New.
2213         * config/rs6000/rs6000-overload.def: New.
2214
2215 2021-07-16  Bill Schmidt  <wschmidt@linux.ibm.com>
2216
2217         * config/rs6000/rs6000-gen-builtins.c: New.
2218
2219 2021-07-16  Bill Schmidt  <wschmidt@linux.ibm.com>
2220
2221         * Makefile.in (EXTRA_GTYPE_DEPS): New variable.
2222         (s-gtype): Depend on EXTRA_GTYPE_DEPS.
2223         * gengtype-state.c (state_writer::write_state_file_list): Add a
2224         parameter to the fileslist expression for the number of build
2225         headers to scan.
2226         (read_state_files_list): Detect build headers and strip the
2227         initial "./" or ".\" from their names.
2228         * gengtype.c (build_headers): New global variable.
2229         (num_build_headers): Likewise.
2230         (open_base_files): Emit #include for each build header.
2231         (main): Detect and count build headers.
2232         * gengtype.h (build_headers): New extern variable.
2233         (num_build_headers): Likewise.
2234
2235 2021-07-16  Richard Biener   <rguenther@suse.de>
2236
2237         * gimple-ssa-store-merging.c (verify_symbolic_number_p): Use
2238         the type of the LHS.
2239         (find_bswap_or_nop_1): Likewise.
2240         (find_bswap_or_nop): Likewise.
2241         * tree-vectorizer.h (vect_get_smallest_scalar_type): Adjust
2242         prototype.
2243         * tree-vect-data-refs.c (vect_get_smallest_scalar_type):
2244         Remove unused parameters, pass in the scalar type.  Fix
2245         internal store function handling.
2246         * tree-vect-stmts.c (vect_analyze_stmt): Remove assert.
2247         (vect_get_vector_types_for_stmt): Move down check for
2248         existing vector stmt after we've determined a scalar type.
2249         Pass down the used scalar type to vect_get_smallest_scalar_type.
2250         * tree-vect-generic.c (expand_vector_condition): Use
2251         the type of the LHS.
2252         (expand_vector_scalar_condition): Likewise.
2253         (expand_vector_operations_1): Likewise.
2254         * tree-vect-patterns.c (vect_widened_op_tree): Likewise.
2255         (vect_recog_dot_prod_pattern): Likewise.
2256         (vect_recog_sad_pattern): Likewise.
2257         (vect_recog_widen_op_pattern): Likewise.
2258         (vect_recog_widen_sum_pattern): Likewise.
2259         (vect_recog_mixed_size_cond_pattern): Likewise.
2260
2261 2021-07-16  Jan Hubicka  <hubicka@ucw.cz>
2262
2263         * ipa-modref.c (struct escape_entry): Use eaf_fleags_t.
2264         (dump_eaf_flags): Dump EAF_NOT_RETURNED
2265         (eaf_flags_useful_p): Use eaf_fleags_t; handle const functions
2266         and EAF_NOT_RETURNED.
2267         (modref_summary::useful_p): Likewise.
2268         (modref_summary_lto::useful_p): Likewise.
2269         (struct) modref_summary_lto: Use eaf_fleags_t.
2270         (deref_flags): Handle EAF_NOT_RETURNED.
2271         (struct escape_point): Use min_flags.
2272         (modref_lattice::init): Add EAF_NOT_RETURNED.
2273         (merge_call_lhs_flags): Ignore EAF_NOT_RETURNED functions
2274         (analyze_ssa_name_flags): Clear EAF_NOT_RETURNED on return;
2275         handle call flags.
2276         (analyze_parms): Also analyze const functions; update conition on
2277         flags usefulness.
2278         (modref_write): Update streaming.
2279         (read_section): Update streaming.
2280         (remap_arg_flags): Use eaf_flags_t.
2281         (modref_merge_call_site_flags): Hanlde EAF_NOT_RETURNED.
2282         * ipa-modref.h: (eaf_flags_t): New typedef.
2283         (struct modref_summary): Use eaf_flags_t.
2284         * tree-core.h (EAF_NOT_RETURNED): New constant.
2285
2286 2021-07-16  Richard Biener  <rguenther@suse.de>
2287
2288         * gimple-fold.c (gimple_fold_stmt_to_constant_1): Use
2289         the type of the LHS.
2290         (gimple_assign_nonnegative_warnv_p): Likewise.
2291         (gimple_call_nonnegative_warnv_p): Likewise.  Return false
2292         if the call has no LHS.
2293         * gimple.c (gimple_could_trap_p_1): Use the type of the LHS.
2294         * tree-eh.c (stmt_could_throw_1_p): Likewise.
2295         * tree-inline.c (insert_init_stmt): Likewise.
2296         * tree-ssa-loop-niter.c (get_val_for): Likewise.
2297         * tree-outof-ssa.c (ssa_is_replaceable_p): Use the type of
2298         the def.
2299         * tree-ssa-sccvn.c (init_vn_nary_op_from_stmt): Take a
2300         gassign *.  Use the type of the lhs.
2301         (vn_nary_op_lookup_stmt): Adjust.
2302         (vn_nary_op_insert_stmt): Likewise.
2303
2304 2021-07-16  Ilya Leoshkevich  <iii@linux.ibm.com>
2305
2306         * config/s390/predicates.md (bras_sym_operand): Accept all
2307         functions in 64-bit mode, use UNSPEC_PLT31.
2308         (larl_operand): Use UNSPEC_PLT31.
2309         * config/s390/s390.c (s390_loadrelative_operand_p): Likewise.
2310         (legitimize_pic_address): Likewise.
2311         (s390_emit_tls_call_insn): Mark __tls_get_offset as function,
2312         use UNSPEC_PLT31.
2313         (s390_delegitimize_address): Use UNSPEC_PLT31.
2314         (s390_output_addr_const_extra): Likewise.
2315         (print_operand): Add @PLT to TLS calls, handle %K.
2316         (s390_function_profiler): Mark __fentry__/_mcount as function,
2317         use %K, use UNSPEC_PLT31.
2318         (s390_output_mi_thunk): Use only UNSPEC_GOT, use %K.
2319         (s390_emit_call): Use UNSPEC_PLT31.
2320         (s390_emit_tpf_eh_return): Mark __tpf_eh_return as function.
2321         * config/s390/s390.md (UNSPEC_PLT31): Rename from UNSPEC_PLT.
2322         (*movdi_64): Use %K.
2323         (reload_base_64): Likewise.
2324         (*sibcall_brc): Likewise.
2325         (*sibcall_brcl): Likewise.
2326         (*sibcall_value_brc): Likewise.
2327         (*sibcall_value_brcl): Likewise.
2328         (*bras): Likewise.
2329         (*brasl): Likewise.
2330         (*bras_r): Likewise.
2331         (*brasl_r): Likewise.
2332         (*bras_tls): Likewise.
2333         (*brasl_tls): Likewise.
2334         (main_base_64): Likewise.
2335         (reload_base_64): Likewise.
2336         (@split_stack_call<mode>): Likewise.
2337
2338 2021-07-16  Richard Biener  <rguenther@suse.de>
2339
2340         PR tree-optimization/101467
2341         * tree-vect-stmts.c (vect_gen_while): Properly guard
2342         make_temp_ssa_name usage.
2343
2344 2021-07-16  Cooper Qu  <cooper.qu@linux.alibaba.com>
2345
2346         * config.gcc: Don't use forked print-sysroot-suffix.sh and
2347         t-sysroot-suffix for C-SKY.
2348         * config/csky/print-sysroot-suffix.sh: Delete.
2349         * config/csky/t-csky-linux: Delete.
2350         * config/csky/t-sysroot-suffix: Define MULTILIB_DIRNAMES
2351         instead of CSKY_MULTILIB_DIRNAMES.
2352
2353 2021-07-16  Richard Biener  <rguenther@suse.de>
2354
2355         * tree-vect-loop.c (vect_transform_cycle_phi): Correct sign
2356         conversion issues with the partial reduction of the reused
2357         vector accumulator.
2358
2359 2021-07-16  Richard Biener  <rguenther@suse.de>
2360
2361         * config/i386/i386-options.c (ix86_option_override_internal): Set
2362         param_vect_partial_vector_usage to zero if not set.
2363
2364 2021-07-15  Uroš Bizjak  <ubizjak@gmail.com>
2365
2366         PR target/101346
2367         * config/i386/i386.h (VALID_SSE_REG_MODE): Add TDmode.
2368         (VALID_INT_MODE_P): Add SDmode and DDmode.
2369         Add TDmode for TARGET_64BIT.
2370         (VALID_DFP_MODE_P): Remove.
2371         * config/i386/i386.c (ix86_hard_regno_mode_ok):
2372         Do not use VALID_DFP_MODE_P.
2373
2374 2021-07-15  Andrew MacLeod  <amacleod@redhat.com>
2375
2376         * gimple-range-fold.cc (adjust_pointer_diff_expr): Use
2377         gimple_range_type.
2378         (fold_using_range::fold_stmt): Ditto.
2379         (fold_using_range::range_of_range_op): Ditto.
2380         (fold_using_range::range_of_phi): Ditto.
2381         (fold_using_range::range_of_call): Ditto.
2382         (fold_using_range::range_of_builtin_ubsan_call): Ditto.
2383         (fold_using_range::range_of_builtin_call): Ditto.
2384         (fold_using_range::range_of_cond_expr): Ditto.
2385         * gimple-range-fold.h (gimple_range_type): New.
2386
2387 2021-07-15  Martin Sebor  <msebor@redhat.com>
2388
2389         PR middle-end/97027
2390         * tree-ssa-strlen.c (handle_assign): New function.
2391         (maybe_warn_overflow): Add argument.
2392         (nonzero_bytes_for_type): New function.
2393         (count_nonzero_bytes): Handle more tree types.  Call
2394         nonzero_bytes_for_tye.
2395         (count_nonzero_bytes): Handle types.
2396         (handle_store): Handle stores from function calls.
2397         (strlen_check_and_optimize_call): Move code to handle_assign.  Call
2398         it for assignments from function calls.
2399
2400 2021-07-15  David Malcolm  <dmalcolm@redhat.com>
2401
2402         PR analyzer/95006
2403         PR analyzer/94713
2404         PR analyzer/94714
2405         * doc/invoke.texi: Add -Wanalyzer-use-of-uninitialized-value.
2406
2407 2021-07-15  David Malcolm  <dmalcolm@redhat.com>
2408
2409         * doc/invoke.texi (-fdump-analyzer-exploded-paths): New.
2410
2411 2021-07-15  Martin Sebor  <msebor@redhat.com>
2412
2413         PR c/101289
2414         PR c/97548
2415         * fold-const.c (operand_compare::operand_equal_p): Handle OEP_DECL_NAME.
2416         (operand_compare::verify_hash_value): Same.
2417         * tree-core.h (OEP_DECL_NAME): New.
2418
2419 2021-07-15  Martin Jambor  <mjambor@suse.cz>
2420
2421         * profile-count.h (profile_count::value): Change the return type to
2422         uint64_t.
2423         * gimple-pretty-print.c (dump_gimple_bb_header): Adjust print
2424         statement.
2425         * tree-cfg.c (dump_function_to_file): Likewise.
2426
2427 2021-07-15  Bill Schmidt  <wschmidt@linux.ibm.com>
2428
2429         PR target/101129
2430         * config/rs6000/rs6000-p8swap.c (has_part_mult): New.
2431         (rs6000_analyze_swaps): Insns containing a subreg of a mult are
2432         not swappable.
2433
2434 2021-07-15  Richard Biener  <rguenther@suse.de>
2435
2436         * tree-vectorizer.h (vect_gen_while): Match up with
2437         vect_gen_while_not.
2438         * tree-vect-stmts.c (vect_gen_while): Adjust API to that
2439         of vect_gen_while_not.
2440         (vect_gen_while_not): Adjust.
2441         * tree-vect-loop-manip.c (vect_set_loop_controls_directly): Likewise.
2442
2443 2021-07-15  Aldy Hernandez  <aldyh@redhat.com>
2444
2445         * gimple-range-cache.cc (non_null_ref::adjust_range): New.
2446         (ranger_cache::range_of_def): Call adjust_range.
2447         (ranger_cache::entry_range): Same.
2448         * gimple-range-cache.h (non_null_ref::adjust_range): New.
2449         * gimple-range.cc (gimple_ranger::range_of_expr): Call
2450         adjust_range.
2451         (gimple_ranger::range_on_entry): Same.
2452
2453 2021-07-15  Tamar Christina  <tamar.christina@arm.com>
2454
2455         Revert:
2456         2021-07-14  Tamar Christina  <tamar.christina@arm.com>
2457
2458         * config/arm/neon.md (<sup>dot_prod<vsi2qi>): Drop statements.
2459
2460 2021-07-15  Tamar Christina  <tamar.christina@arm.com>
2461
2462         Revert:
2463         2021-07-14  Tamar Christina  <tamar.christina@arm.com>
2464
2465         * config/aarch64/aarch64-simd-builtins.def (udot, sdot): Rename to...
2466         (sdot_prod, udot_prod): ...These.
2467         * config/aarch64/aarch64-simd.md (<sur>dot_prod<vsi2qi>): Remove.
2468         (aarch64_<sur>dot<vsi2qi>): Rename to...
2469         (<sur>dot_prod<vsi2qi>): ...This.
2470         * config/aarch64/arm_neon.h (vdot_u32, vdotq_u32, vdot_s32, vdotq_s32):
2471         Update builtins.
2472
2473 2021-07-15  Jakub Jelinek  <jakub@redhat.com>
2474
2475         PR middle-end/101437
2476         * gimplify.c (gimplify_expr): Throw away volatile reads from empty
2477         types even if they have non-BLKmode TYPE_MODE.
2478
2479 2021-07-15  Richard Biener  <rguenther@suse.de>
2480
2481         PR driver/101383
2482         * gcc.c (process_command): Process -gtoggle like process_options
2483         would after parsing options.
2484
2485 2021-07-15  Trevor Saunders  <tbsaunde@tbsaunde.org>
2486
2487         * cfgexpand.c (expand_asm_loc): Adjust.
2488         (expand_asm_stmt): Likewise.
2489         * config/arm/aarch-common-protos.h (arm_md_asm_adjust): Likewise.
2490         * config/arm/aarch-common.c (arm_md_asm_adjust): Likewise.
2491         * config/arm/arm.c (thumb1_md_asm_adjust): Likewise.
2492         * config/avr/avr.c (avr_md_asm_adjust): Likewise.
2493         * config/cris/cris.c (cris_md_asm_adjust): Likewise.
2494         * config/i386/i386.c (ix86_md_asm_adjust): Likewise.
2495         * config/mn10300/mn10300.c (mn10300_md_asm_adjust): Likewise.
2496         * config/nds32/nds32.c (nds32_md_asm_adjust): Likewise.
2497         * config/pdp11/pdp11.c (pdp11_md_asm_adjust): Likewise.
2498         * config/rs6000/rs6000.c (rs6000_md_asm_adjust): Likewise.
2499         * config/s390/s390.c (s390_md_asm_adjust): Likewise.
2500         * config/vax/vax.c (vax_md_asm_adjust): Likewise.
2501         * config/visium/visium.c (visium_md_asm_adjust): Likewise.
2502         * doc/tm.texi: Regenerate.
2503         * target.def: Add location argument to md_asm_adjust.
2504
2505 2021-07-15  Trevor Saunders  <tbsaunde@tbsaunde.org>
2506
2507         * tree-diagnostic.c (diagnostic_report_current_function): Use the
2508         diagnostic's location, not input_location.
2509
2510 2021-07-15  Trevor Saunders  <tbsaunde@tbsaunde.org>
2511
2512         * cfgexpand.c (tree_conflicts_with_clobbers_p): Pass location to
2513         diagnostics.
2514         (expand_asm_stmt): Likewise.
2515
2516 2021-07-14  Peter Bergner  <bergner@linux.ibm.com>
2517
2518         * config/rs6000/rs6000.c (adjacent_mem_locations): Return the lower
2519         addressed memory rtx, if any.
2520         (rs6000_split_multireg_move): Fix code formatting.
2521         Handle MMA build built-ins with operands in adjacent memory locations.
2522
2523 2021-07-14  Peter Bergner  <bergner@linux.ibm.com>
2524
2525         * config/rs6000/rs6000.c (rs6000_split_multireg_move): Move to later
2526         in the file.
2527
2528 2021-07-14  Jason Merrill  <jason@redhat.com>
2529
2530         * sel-sched-ir.h (get_all_loop_exits): Use auto_vec.
2531
2532 2021-07-14  Jason Merrill  <jason@redhat.com>
2533
2534         * doc/invoke.texi: -fdelete-dead-exceptions is on by default for
2535         C++.
2536
2537 2021-07-14  Tamar Christina  <tamar.christina@arm.com>
2538
2539         * tree-vect-patterns.c (vect_recog_dot_prod_pattern):
2540         Remove erroneous line.
2541
2542 2021-07-14  Andrew MacLeod  <amacleod@redhat.com>
2543
2544         * params.opt (param_evrp_mode): Change default.
2545
2546 2021-07-14  Tamar Christina  <tamar.christina@arm.com>
2547
2548         * config/aarch64/aarch64-simd-builtins.def (udot, sdot): Rename to...
2549         (sdot_prod, udot_prod): ...These.
2550         * config/aarch64/aarch64-simd.md (<sur>dot_prod<vsi2qi>): Remove.
2551         (aarch64_<sur>dot<vsi2qi>): Rename to...
2552         (<sur>dot_prod<vsi2qi>): ...This.
2553         * config/aarch64/arm_neon.h (vdot_u32, vdotq_u32, vdot_s32, vdotq_s32):
2554         Update builtins.
2555
2556 2021-07-14  Tamar Christina  <tamar.christina@arm.com>
2557
2558         * config/arm/neon.md (<sup>dot_prod<vsi2qi>): Drop statements.
2559
2560 2021-07-14  Tamar Christina  <tamar.christina@arm.com>
2561
2562         * doc/sourcebuild.texi (arm_v8_2a_i8mm_neon_hw): Document.
2563
2564 2021-07-14  Tamar Christina  <tamar.christina@arm.com>
2565
2566         * config/arm/neon.md (usdot_prod<vsi2qi>): New.
2567
2568 2021-07-14  Tamar Christina  <tamar.christina@arm.com>
2569
2570         * config/aarch64/aarch64-simd.md (aarch64_usdot<vsi2qi>): Rename to...
2571         (usdot_prod<vsi2qi>): ... This.
2572         * config/aarch64/aarch64-simd-builtins.def (usdot): Rename to...
2573         (usdot_prod): ...This.
2574         * config/aarch64/arm_neon.h (vusdot_s32, vusdotq_s32): Likewise.
2575         * config/aarch64/aarch64-sve.md (@aarch64_<sur>dot_prod<vsi2qi>):
2576         Rename to...
2577         (@<sur>dot_prod<vsi2qi>): ...This.
2578         * config/aarch64/aarch64-sve-builtins-base.cc
2579         (svusdot_impl::expand): Use it.
2580
2581 2021-07-14  Tamar Christina  <tamar.christina@arm.com>
2582
2583         * optabs.def (usdot_prod_optab): New.
2584         * doc/md.texi: Document it and clarify other dot prod optabs.
2585         * optabs-tree.h (enum optab_subtype): Add optab_vector_mixed_sign.
2586         * optabs-tree.c (optab_for_tree_code): Support usdot_prod_optab.
2587         * optabs.c (expand_widen_pattern_expr): Likewise.
2588         * tree-cfg.c (verify_gimple_assign_ternary): Likewise.
2589         * tree-vect-loop.c (vectorizable_reduction): Query dot-product kind.
2590         * tree-vect-patterns.c (vect_supportable_direct_optab_p): Take optional
2591         optab subtype.
2592         (vect_widened_op_tree): Optionally ignore
2593         mismatch types.
2594         (vect_recog_dot_prod_pattern): Support usdot_prod_optab.
2595
2596 2021-07-14  H.J. Lu  <hjl.tools@gmail.com>
2597
2598         PR target/101395
2599         * config/i386/driver-i386.c (host_detect_local_cpu): Check
2600         "arch [32|64]" and "tune [32|64]" for 32-bit and 64-bit codegen.
2601         Enable UINTR only for 64-bit codegen.
2602         * config/i386/i386-options.c
2603         (ix86_option_override_internal::DEF_PTA): Skip PTA_UINTR if not
2604         in 64-bit mode.
2605         * config/i386/i386.h (ARCH_ARG): New.
2606         (CC1_CPU_SPEC): Pass "[arch|tune] 32" for 32-bit codegen and
2607         "[arch|tune] 64" for 64-bit codegen.
2608
2609 2021-07-14  Richard Biener  <rguenther@suse.de>
2610
2611         PR tree-optimization/101445
2612         * tree-vect-stmts.c (vectorizable_load): Do the gap adjustment
2613         of the IV in the correct direction for negative stride
2614         accesses.
2615
2616 2021-07-14  Jakub Jelinek  <jakub@redhat.com>
2617
2618         PR go/101407
2619         * godump.c (godump_str_hash): New type.
2620         (godump_container::pot_dummy_types): Use string_hash instead of
2621         ptr_hash in the hash_set.
2622
2623 2021-07-14  Richard Biener  <rguenther@suse.de>
2624
2625         * tree-vect-loop.c (vect_find_reusable_accumulator): Handle
2626         vector types where the old vector type has a multiple of
2627         the new vector type elements.
2628         (vect_create_partial_epilog): New function, split out from...
2629         (vect_create_epilog_for_reduction): ... here.
2630         (vect_transform_cycle_phi): Reduce the re-used accumulator
2631         to the new vector type.
2632
2633 2021-07-14  Alexandre Oliva  <oliva@adacore.com>
2634
2635         * tree-ssa-alias.c (attr_fnspec::verify): Fix index in
2636         non-'t'-sized arg check.
2637
2638 2021-07-14  Alexandre Oliva  <oliva@adacore.com>
2639
2640         * tree-cfg.c (cleanup_dead_labels_eh): Update
2641         post_landing_pad label upon change of landing pad block's
2642         primary label.
2643         (cleanup_dead_labels): Check that a removed label is not that
2644         of a landing pad.
2645
2646 2021-07-13  Jonathan Wright  <jonathan.wright@arm.com>
2647
2648         * combine.c (combine_simplify_rtx): Add vec_select -> subreg
2649         simplification.
2650         * config/aarch64/aarch64.md (*zero_extend<SHORT:mode><GPI:mode>2_aarch64):
2651         Add Neon to general purpose register case for zero-extend
2652         pattern.
2653         * config/arm/vfp.md (*arm_movsi_vfp): Remove "*" from *t -> r
2654         case to prevent some cases opting to go through memory.
2655         * cse.c (fold_rtx): Add vec_select -> subreg simplification.
2656         * rtl.c (rtvec_series_p): Define predicate to determine
2657         whether a vector contains a linear series of integers.
2658         * rtl.h (rtvec_series_p): Define.
2659         * rtlanal.c (vec_series_lowpart_p): Define predicate to
2660         determine if a vector selection is equivalent to the low part
2661         of the vector.
2662         * rtlanal.h (vec_series_lowpart_p): Define.
2663         * simplify-rtx.c (simplify_context::simplify_binary_operation_1):
2664         Add vec_select -> subreg simplification.
2665
2666 2021-07-13  Paul A. Clarke  <pc@us.ibm.com>
2667
2668         * config/rs6000/smmintrin.h (_mm_testz_si128, _mm_testc_si128,
2669         _mm_testnzc_si128, _mm_test_all_ones, _mm_test_all_zeros,
2670         _mm_test_mix_ones_zeros): New.
2671
2672 2021-07-13  Roger Sayle  <roger@nextmovesoftware.com>
2673             Richard Biener  <rguenther@suse.de>
2674
2675         * gimple.c (gimple_could_trap_p_1):  Make S argument a
2676         "const gimple*".  Preserve constness in call to
2677         gimple_asm_volatile_p.
2678         (gimple_could_trap_p): Make S argument a "const gimple*".
2679         * gimple.h (gimple_could_trap_p_1, gimple_could_trap_p):
2680         Update function prototypes.
2681
2682 2021-07-13  Richard Sandiford  <richard.sandiford@arm.com>
2683
2684         * tree-vectorizer.h (vect_reusable_accumulator): New structure.
2685         (_loop_vec_info::main_loop_edge): New field.
2686         (_loop_vec_info::skip_main_loop_edge): Likewise.
2687         (_loop_vec_info::skip_this_loop_edge): Likewise.
2688         (_loop_vec_info::reusable_accumulators): Likewise.
2689         (_stmt_vec_info::reduc_scalar_results): Likewise.
2690         (_stmt_vec_info::reused_accumulator): Likewise.
2691         (vect_get_main_loop_result): Declare.
2692         * tree-vectorizer.c (vec_info::new_stmt_vec_info): Initialize
2693         reduc_scalar_inputs.
2694         (vec_info::free_stmt_vec_info): Free reduc_scalar_inputs.
2695         * tree-vect-loop-manip.c (vect_get_main_loop_result): New function.
2696         (vect_do_peeling): Fill an epilogue loop's main_loop_edge,
2697         skip_main_loop_edge and skip_this_loop_edge fields.
2698         * tree-vect-loop.c (INCLUDE_ALGORITHM): Define.
2699         (vect_emit_reduction_init_stmts): New function.
2700         (get_initial_def_for_reduction): Use it.
2701         (get_initial_defs_for_reduction): Likewise.  Change the vinfo
2702         parameter to a loop_vec_info.
2703         (vect_create_epilog_for_reduction): Store the scalar results
2704         in the reduc_info.  If an epilogue loop is reusing an accumulator
2705         from the main loop, and if the epilogue loop can also be skipped,
2706         try to place the reduction code in the join block.  Record
2707         accumulators that could potentially be reused by epilogue loops.
2708         (vect_transform_cycle_phi): When vectorizing epilogue loops,
2709         try to reuse accumulators from the main loop.  Record the initial
2710         value in reduc_info for non-SLP reductions too.
2711
2712 2021-07-13  Richard Sandiford  <richard.sandiford@arm.com>
2713
2714         * tree-vect-loop.c (get_initial_def_for_reduction): Remove
2715         adjustment handling.  Take the neutral value as an argument,
2716         in place of the code argument.
2717         (vect_transform_cycle_phi): Update accordingly.  Handle the
2718         initial values of cond reductions separately from code reductions.
2719         Choose the adjustment here rather than in
2720         get_initial_def_for_reduction.  Sink the splat of vec_initial_def.
2721
2722 2021-07-13  Richard Sandiford  <richard.sandiford@arm.com>
2723
2724         * tree-vect-loop.c (neutral_op_for_slp_reduction): Replace with...
2725         (neutral_op_for_reduction): ...this, providing a more general
2726         interface.
2727         (vect_create_epilog_for_reduction): Update accordingly.
2728         (vectorizable_reduction): Likewise.
2729         (vect_transform_cycle_phi): Likewise.
2730
2731 2021-07-13  Richard Sandiford  <richard.sandiford@arm.com>
2732
2733         * tree-vect-loop.c (get_initial_def_for_reduction): Take the
2734         reduc_info instead of the original stmt_vec_info.
2735         (vect_transform_cycle_phi): Update accordingly.
2736
2737 2021-07-13  Richard Sandiford  <richard.sandiford@arm.com>
2738
2739         * tree-vect-loop.c (get_initial_defs_for_reduction): Take the
2740         reduc_info as an additional parameter.
2741         (vect_transform_cycle_phi): Update accordingly.
2742
2743 2021-07-13  Richard Sandiford  <richard.sandiford@arm.com>
2744
2745         * tree-vectorizer.h: Include tree-ssa-operands.h.
2746         (vect_phi_initial_value): New function.
2747         * tree-vect-loop.c (neutral_op_for_slp_reduction): Use it.
2748         (get_initial_defs_for_reduction, info_for_reduction): Likewise.
2749         (vect_create_epilog_for_reduction, vectorizable_reduction): Likewise.
2750         (vect_transform_cycle_phi, vectorizable_induction): Likewise.
2751
2752 2021-07-13  Richard Sandiford  <richard.sandiford@arm.com>
2753
2754         * tree-vect-loop.c (vect_create_epilog_for_reduction): Convert
2755         the phi results to vectype after creating them.  Remove later
2756         conversion code that thus becomes redundant.
2757
2758 2021-07-13  Richard Sandiford  <richard.sandiford@arm.com>
2759
2760         * tree-vect-loop.c (vect_create_epilog_for_reduction): Replace
2761         the new_phis vector with a reduc_inputs vector.  Combine handling
2762         of reduction chains and ncopies > 1.
2763
2764 2021-07-13  Richard Sandiford  <richard.sandiford@arm.com>
2765
2766         * tree-vect-loop.c (vect_create_epilog_for_reduction): Truncate
2767         scalar_results to group_size elements after reducing down from
2768         N*group_size elements.  Construct an array_slice of the live-out
2769         stmts and assert that there is one stmt per scalar result.
2770
2771 2021-07-13  Richard Sandiford  <richard.sandiford@arm.com>
2772
2773         * tree-vect-loop.c (vect_create_epilog_for_reduction): Remove
2774         nested_in_vect_loop and use double_reduc everywhere.  Remove dead
2775         assignment to "loop".
2776
2777 2021-07-13  Richard Sandiford  <richard.sandiford@arm.com>
2778
2779         * internal-fn.c (vectorized_internal_fn_supported_p): Handle
2780         vector types first.  For scalar types, consider both the preferred
2781         vector mode and the alternative vector modes.
2782         * optabs-query.c (can_vec_mask_load_store_p): Use the same
2783         structure as above, in particular using related_vector_mode
2784         for modes provided by autovectorize_vector_modes.
2785
2786 2021-07-13  Jakub Jelinek  <jakub@redhat.com>
2787             Richard Biener  <rguenther@suse.de>
2788
2789         PR tree-optimization/101419
2790         * tree-pass.h (PROP_objsz): Define.
2791         (make_pass_early_object_sizes): Declare.
2792         * passes.def (pass_all_early_optimizations): Rename pass_object_sizes
2793         there to pass_early_object_sizes, drop parameter.
2794         (pass_all_optimizations): Move pass_object_sizes right after pass_ccp,
2795         drop parameter, move pass_post_ipa_warn right after that.
2796         * tree-object-size.c (pass_object_sizes::execute): Rename to...
2797         (object_sizes_execute): ... this.  Add insert_min_max_p argument.
2798         (pass_data_object_sizes): Move after object_sizes_execute.
2799         (pass_object_sizes): Likewise.  In execute method call
2800         object_sizes_execute, drop set_pass_param method and insert_min_max_p
2801         non-static data member and its initializer in the ctor.
2802         (pass_data_early_object_sizes, pass_early_object_sizes,
2803         make_pass_early_object_sizes): New.
2804         * tree-ssa-sccvn.c (copy_reference_ops_from_ref): Use
2805         (cfun->curr_properties & PROP_objsz) instead of cfun->after_inlining.
2806
2807 2021-07-13  Kito Cheng  <kito.cheng@sifive.com>
2808
2809         PR target/101275
2810         * config/riscv/constraints.md ("S"): Update description and remove
2811         @internal.
2812         * doc/md.texi (Machine Constraints): Document the 'S' constraints
2813         for RISC-V.
2814
2815 2021-07-13  Richard Biener  <rguenther@suse.de>
2816
2817         Revert:
2818         2021-07-12  Richard Biener  <rguenther@suse.de>
2819
2820         * tree-vect-slp.c (vect_slp_region): Show the number of
2821         SLP graph entries in the optimization message.
2822
2823 2021-07-13  Michael Meissner  <meissner@linux.ibm.com>
2824
2825         * config/rs6000/altivec.md (xxspltiw_v4sf): Change local variable
2826         value to to long.
2827         * config/rs6000/rs6000-protos.h (rs6000_const_f32_to_i32): Change
2828         return type to long.
2829         * config/rs6000/rs6000.c (rs6000_const_f32_to_i32): Change return
2830         type to long.
2831
2832 2021-07-12  Andrew MacLeod  <amacleod@redhat.com>
2833
2834         * gimple-range-fold.cc (fold_using_range::range_of_builtin_ubsan_call):
2835         Query relation between the 2 operands and use it.
2836
2837 2021-07-12  Sergei Trofimovich  <siarheit@google.com>
2838
2839         * doc/cfg.texi: Fix s/ei_safe_safe/ei_safe_edge/ typo.
2840
2841 2021-07-12  Uroš Bizjak  <ubizjak@gmail.com>
2842
2843         PR target/101424
2844         * config/i386/predicates.md (vec_setm_sse41_operand):
2845         Rename from vec_setm_operand.
2846         (vec_setm_avx2_operand): New predicate.
2847         * config/i386/sse.md (vec_set<V_128:mode>): Use V_128 mode iterator.
2848         Use vec_setm_sse41_operand as operand 2 predicate.
2849         (vec_set<V_256_512:mode): New expander.
2850         * config/i386/mmx.md (vec_setv2hi): Use vec_setm_sse41_operand
2851         as operand 2 predicate.
2852
2853 2021-07-12  Andrew MacLeod  <amacleod@redhat.com>
2854
2855         PR tree-optimization/101335
2856         * range-op.cc (operator_cast::lhs_op1_relation): Delete.
2857
2858 2021-07-12  Andrew Pinski  <apinski@marvell.com>
2859
2860         * tree-ssa-phiopt.c (match_simplify_replacement): Move
2861         insert of the sequence before the movement of the
2862         statement. Check if to see if the statement is used
2863         outside of the original phi to see if we should move it.
2864
2865 2021-07-12  Richard Biener  <rguenther@suse.de>
2866
2867         * dump-context.h (debug_dump_context::debug_dump_context):
2868         Add FILE * parameter defaulted to stderr.
2869         * dumpfile.c (debug_dump_context::debug_dump_context): Adjust.
2870         * tree-vect-slp.c (dot_slp_tree): New functions.
2871
2872 2021-07-12  Richard Biener  <rguenther@suse.de>
2873
2874         PR tree-optimization/101373
2875         * tree-ssa-pre.c (prune_clobbered_mems): Also prune trapping
2876         references when the BB may not return.
2877         (compute_avail): Pass in the function we're working on and
2878         replace cfun references with it.  Externally throwing
2879         const calls also possibly terminate the function.
2880         (pass_pre::execute): Pass down the function we're working on.
2881         * gcse.c (compute_hash_table_work): Externally throwing
2882         const/pure calls also need record_last_mem_set_info.
2883         * postreload-gcse.c (record_opr_changes): Looping or externally
2884         throwing const/pure calls also need record_last_mem_set_info.
2885
2886 2021-07-12  Uroš Bizjak  <ubizjak@gmail.com>
2887
2888         * recog.c (memory_address_addr_space_p): Change the type to bool.
2889         Return true/false instead of 1/0.
2890         (offsettable_memref_p): Ditto.
2891         (offsettable_nonstrict_memref_p): Ditto.
2892         (offsettable_address_addr_space_p): Ditto.
2893         Change the type of addressp indirect function to bool.
2894         * recog.h (memory_address_addr_space_p): Change the type to bool.
2895         (strict_memory_address_addr_space_p): Ditto.
2896         (offsettable_memref_p): Ditto.
2897         (offsettable_nonstrict_memref_p): Ditto.
2898         (offsettable_address_addr_space_p): Ditto.
2899         * reload.c (maybe_memory_address_addr_space_p): Ditto.
2900         (strict_memory_address_addr_space_p): Change the type to bool.
2901         Return true/false instead of 1/0.
2902         (maybe_memory_address_addr_space_p): Change the type to bool.
2903
2904 2021-07-12  Richard Biener  <rguenther@suse.de>
2905
2906         * tree-vect-slp.c (vect_slp_region): Show the number of
2907         SLP graph entries in the optimization message.
2908
2909 2021-07-12  Richard Biener  <rguenther@suse.de>
2910
2911         PR tree-optimization/101394
2912         * tree-ssa-pre.c (do_pre_regular_insertion): Avoid inserting
2913         copies from abnormals for a full redundancy.
2914
2915 2021-07-12  Richard Biener  <rguenther@suse.de>
2916
2917         PR middle-end/101423
2918         * gimple.c (gimple_could_trap_p_1): Internal function calls
2919         do not trap.
2920         * tree-eh.c (tree_could_trap_p): Likewise.
2921
2922 2021-07-12  prathamesh.kulkarni  <prathamesh.kulkarni@linaro.org>
2923
2924         PR target/66791
2925         * config/arm/arm_neon.h (vmul_n_u32): Replace call to builtin with
2926         __a * __b.
2927         (vmulq_n_u32): Likewise.
2928         (vmul_n_f32): Gate __a * __b on __FAST_MATH__.
2929         (vmulq_n_f32): Likewise.
2930         (vmul_n_f16): Likewise.
2931         (vmulq_n_f16): Likewise.
2932
2933 2021-07-12  Martin Liska  <mliska@suse.cz>
2934
2935         PR sanitizer/101425
2936         * gcc.c (check_offload_target_name): Call
2937           candidates_list_and_hint only if we have a candidate.
2938
2939 2021-07-12  prathamesh.kulkarni  <prathamesh.kulkarni@linaro.org>
2940
2941         PR target/98435
2942         * config/arm/neon.md (vec_init): Move to ...
2943         * config/arm/vec-common.md (vec_init): ... here.
2944         Change the pattern's mode to VDQX and gate it on VALID_MVE_MODE.
2945
2946 2021-07-12  Roger Sayle  <roger@nextmovesoftware.com>
2947
2948         PR tree-optimization/101403
2949         * match.pd ((T)bswap(X)>>C): Correctly handle cases where
2950         signedness of the shift is not the same as the signedness of
2951         the type extension.
2952
2953 2021-07-09  Roger Sayle  <roger@nextmovesoftware.com>
2954             Uroš Bizjak  <ubizjak@gmail.com>
2955
2956         * config/i386/i386.md (*divmodsi4_const): Optimize SImode
2957         divmod of a constant numerator with new define_insn_and_split.
2958
2959 2021-07-09  Iain Sandoe  <iain@sandoe.co.uk>
2960
2961         PR target/100152
2962         * config/i386/i386-expand.c (ix86_expand_call): If a call is
2963         to a non-local-binding, or local but to a public symbol, then
2964         assume that it might be indirected via the lazy symbol binder.
2965         Mark R10 and R10 as clobbered in that case.
2966
2967 2021-07-09  Eric Botcazou  <ebotcazou@adacore.com>
2968
2969         PR target/101377
2970         * gcc.c (ASM_DEBUG_DWARF_OPTION): Set again to --gdwarf2 in
2971         the case where HAVE_AS_WORKING_DWARF_N_FLAG is not defined
2972         and HAVE_LD_BROKEN_PE_DWARF5 is defined.
2973
2974 2021-07-09  Uroš Bizjak  <ubizjak@gmail.com>
2975
2976         * config/i386/i386.md (*udivmodsi4_pow2_zext_1): Limit the
2977         log2 range of operands[3] to [1,31].
2978         (*udivmodsi4_pow2_zext_2): Ditto.  Correct insn RTX pattern.
2979
2980 2021-07-09  Sergei Trofimovich  <siarheit@google.com>
2981
2982         * doc/md.texi: Don't split @smallexample in multiple @groups.
2983
2984 2021-07-09  Sergei Trofimovich  <siarheit@google.com>
2985
2986         * doc/md.texi: Add missing 'see' word.
2987
2988 2021-07-09  Andrew Pinski  <apinski@marvell.com>
2989
2990         * tree-ssa-phiopt.c (phiopt_early_allow): Change arguments
2991         to take sequence and gimple_match_op.  Accept the case where
2992         op is a SSA_NAME and one statement in the sequence.
2993         Also allow constants.
2994         (gimple_simplify_phiopt): Always pass a sequence to resimplify.
2995         Update call to phiopt_early_allow.  Discard the sequence if not
2996         used.
2997
2998 2021-07-09  Xi Ruoyao  <xry111@mengyan1223.wang>
2999
3000         PR target/100760
3001         PR target/100761
3002         PR target/100762
3003         * config/mips/mips.c (mips_const_insns): Use MSA_SUPPORTED_MODE_P
3004         instead of ISA_HAS_MSA.
3005         (mips_expand_vec_unpack): Likewise.
3006         (mips_expand_vector_init): Likewise.
3007
3008 2021-07-09  Kewen Lin  <linkw@linux.ibm.com>
3009
3010         * config/rs6000/vsx.md (mods_<mode>): Rename to...
3011         (mod<mode>3): ... this.
3012         (modu_<mode>): Rename to...
3013         (umod<mode>3): ... this.
3014         * config/rs6000/rs6000-builtin.def (MODS_V2DI, MODS_V4SI, MODU_V2DI,
3015         MODU_V4SI): Adjust.
3016
3017 2021-07-08  Jeff Law  <jeffreyalaw@gmail.com>
3018
3019         * config/h8300/shiftrotate.md (variable shifts): Expose condition
3020         code handling for the test before the loop.
3021
3022 2021-07-08  Martin Jambor  <mjambor@suse.cz>
3023
3024         PR ipa/101066
3025         * ipa-sra.c (class isra_call_summary): New member
3026         m_before_any_store, initialize it in the constructor.
3027         (isra_call_summary::dump): Dump the new field.
3028         (ipa_sra_call_summaries::duplicate): Copy it.
3029         (process_scan_results): Set it.
3030         (isra_write_edge_summary): Stream it.
3031         (isra_read_edge_summary): Likewise.
3032         (param_splitting_across_edge): Only override
3033         safe_to_import_accesses if m_before_any_store is set.
3034
3035 2021-07-08  Martin Sebor  <msebor@redhat.com>
3036
3037         PR bootstrap/101374
3038         * gimple-array-bounds.cc (array_bounds_checker::check_mem_ref):
3039         Use Object Size Type 0 instead of 1.
3040
3041 2021-07-08  Richard Sandiford  <richard.sandiford@arm.com>
3042
3043         * tree-vect-loop.c (vectorizable_reduction): Remove always-true
3044         if condition.
3045
3046 2021-07-08  Richard Sandiford  <richard.sandiford@arm.com>
3047
3048         * match.pd: Simplify an extend-operate-truncate sequence involving
3049         a POLY_INT_CST.
3050
3051 2021-07-08  Roger Sayle  <roger@nextmovesoftware.com>
3052             Richard Biener  <rguenther@suse.de>
3053
3054         PR tree-optimization/40210
3055         * match.pd (bswap optimizations): Simplify (bswap(x)>>C1)&C2 as
3056         (x>>C3)&C2 when possible.  Simplify bswap(x)>>C1 as ((T)x)>>C2
3057         when possible.  Simplify bswap(x)&C1 as (x>>C2)&C1 when 0<=C1<=255.
3058
3059 2021-07-08  Uroš Bizjak  <ubizjak@gmail.com>
3060
3061         PR target/100637
3062         * config/i386/i386-expand.c (ix86_expand_sse_unpack):
3063         Handle V4QI mode.
3064         * config/i386/mmx.md (V_32): New mode iterator.
3065         (mov<V_32:mode>): Use V_32 mode iterator.
3066         (*mov<V_32:mode>_internal): Ditto.
3067         (*push<V_32:mode>2_rex64): Ditto.
3068         (*push<V_32:mode>2): Ditto.
3069         (movmisalign<V_32:mode>): Ditto.
3070         (mmx_<any_shiftrt:insn>v1si3): New insn pattern.
3071         (sse4_1_<any_extend:code>v2qiv2hi2): Ditto.
3072         (vec_unpacks_lo_v4qi): New expander.
3073         (vec_unpacks_hi_v4qi): Ditto.
3074         (vec_unpacku_lo_v4qi): Ditto.
3075         (vec_unpacku_hi_v4qi): Ditto.
3076         * config/i386/i386.h (VALID_SSE2_REG_MODE): Add V1SImode.
3077         (VALID_INT_MODE_P): Ditto.
3078
3079 2021-07-08  Michael Meissner  <meissner@linux.ibm.com>
3080
3081         PR target/100809
3082         * config/rs6000/rs6000.md (udivti3): New insn.
3083         (divti3): New insn.
3084         (umodti3): New insn.
3085         (modti3): New insn.
3086
3087 2021-07-07  Martin Sebor  <msebor@redhat.com>
3088
3089         PR tree-optimization/100137
3090         PR tree-optimization/99121
3091         PR tree-optimization/97027
3092         * builtins.c (access_ref::access_ref): Also set offmax.
3093         (access_ref::offset_in_range): Define new function.
3094         (access_ref::add_offset): Set offmax.
3095         (access_ref::inform_access): Handle access_none.
3096         (handle_mem_ref): Clear ostype.
3097         (compute_objsize_r): Handle ASSERT_EXPR.
3098         * builtins.h (struct access_ref): Add offmax member.
3099         * gimple-array-bounds.cc (array_bounds_checker::check_mem_ref): Use
3100         compute_objsize() and simplify.
3101
3102 2021-07-07  Peter Bergner  <bergner@linux.ibm.com>
3103
3104         * config/rs6000/rs6000-call.c (mma_init_builtins): Use VSX_BUILTIN_LXVP
3105         and VSX_BUILTIN_STXVP.
3106
3107 2021-07-07  Martin Sebor  <msebor@redhat.com>
3108
3109         PR target/101363
3110         * config/aarch64/aarch64.c (aarch64_simd_lane_bounds): Remove
3111         a stray %K from error_at() missed in r12-2088.
3112
3113 2021-07-07  Richard Biener  <rguenther@suse.de>
3114
3115         PR tree-optimization/99728
3116         * tree-ssa-loop-im.c (gather_mem_refs_stmt): Record
3117         aggregate copies.
3118         (mem_refs_may_alias_p): Add assert we handled aggregate
3119         copies elsewhere.
3120         (sm_seq_valid_bb): Give up when running into aggregate copies.
3121         (ref_indep_loop_p): Handle aggregate copies as never
3122         being invariant themselves but allow other refs to be
3123         disambiguated against them.
3124         (can_sm_ref_p): Do not try to apply store-motion to aggregate
3125         copies.
3126
3127 2021-07-06  Indu Bhagat  <indu.bhagat@oracle.com>
3128
3129         PR debug/101283
3130         * dwarf2ctf.c (ctf_get_AT_data_member_location): Multiply by 8 to get
3131         number of bits.
3132
3133 2021-07-06  Martin Sebor  <msebor@redhat.com>
3134
3135         * gimple-pretty-print.c (percent_G_format): Remove.
3136         * tree-diagnostic.c (default_tree_printer): Remove calls.
3137         * tree-pretty-print.c (percent_K_format): Remove.
3138         * tree-pretty-print.h (percent_K_format): Remove.
3139
3140 2021-07-06  Martin Sebor  <msebor@redhat.com>
3141
3142         * config/aarch64/aarch64-builtins.c (aarch64_simd_expand_builtin):
3143         Remove %K and use error_at.
3144         (aarch64_expand_fcmla_builtin): Same.
3145         (aarch64_expand_builtin_tme): Same.
3146         (aarch64_expand_builtin_memtag): Same.
3147         * config/arm/arm-builtins.c (arm_expand_acle_builtin): Same.
3148         (arm_expand_builtin): Same.
3149         * config/arm/arm.c (bounds_check): Same.
3150
3151 2021-07-06  Martin Sebor  <msebor@redhat.com>
3152
3153         * builtins.c (warn_string_no_nul): Remove %G.
3154         (maybe_warn_for_bound): Same.
3155         (warn_for_access): Same.
3156         (check_access): Same.
3157         (check_strncat_sizes): Same.
3158         (expand_builtin_strncat): Same.
3159         (expand_builtin_strncmp): Same.
3160         (expand_builtin): Same.
3161         (expand_builtin_object_size): Same.
3162         (warn_dealloc_offset): Same.
3163         (maybe_emit_free_warning): Same.
3164         * calls.c (maybe_warn_alloc_args_overflow): Same.
3165         (maybe_warn_nonstring_arg): Same.
3166         (maybe_warn_rdwr_sizes): Same.
3167         * expr.c (expand_expr_real_1): Remove %K.
3168         * gimple-fold.c (gimple_fold_builtin_strncpy): Remove %G.
3169         (gimple_fold_builtin_strncat): Same.
3170         * gimple-ssa-sprintf.c (format_directive): Same.
3171         (handle_printf_call): Same.
3172         * gimple-ssa-warn-alloca.c (pass_walloca::execute): Same.
3173         * gimple-ssa-warn-restrict.c (maybe_diag_overlap): Same.
3174         (maybe_diag_access_bounds): Same.  Call gimple_location.
3175         (check_bounds_or_overlap): Same.
3176         * trans-mem.c (ipa_tm_scan_irr_block): Remove %K.  Simplify.
3177         * tree-ssa-ccp.c (pass_post_ipa_warn::execute): Remove %G.
3178         * tree-ssa-strlen.c (maybe_warn_overflow): Same.
3179         (maybe_diag_stxncpy_trunc): Same.
3180         (handle_builtin_stxncpy_strncat): Same.
3181         (maybe_warn_pointless_strcmp): Same.
3182         * tree-ssa-uninit.c (maybe_warn_operand): Same.
3183
3184 2021-07-06  Uroš Bizjak  <ubizjak@gmail.com>
3185
3186         PR target/97194
3187         * config/i386/predicates.md (vec_setm_operand): Enable
3188         register_operand for TARGET_SSE4_1.
3189         * config/i386/mmx.md (vec_setv2hi): Use vec_setm_operand
3190         as operand 2 predicate.  Call ix86_expand_vector_set_var
3191         for non-constant index operand.
3192         (vec_setv4qi): Use vec_setm_mmx_operand as operand 2 predicate.
3193         Call ix86_expand_vector_set_var for non-constant index operand.
3194
3195 2021-07-06  Jeff Law  <jeffreyalaw@gmail.com>
3196
3197         * config/h8300/jumpcall.md (*branch): When possible, generate
3198         the comparison in CCZN mode.
3199         * config/h8300/predicates.md (simple_memory_operand): Reject all
3200         auto-increment addressing modes.
3201
3202 2021-07-06  Iain Sandoe  <iain@sandoe.co.uk>
3203
3204         PR bootstrap/100246
3205         * config/i386/i386.h (struct stringop_algs): Define a CTOR for
3206         this type.
3207
3208 2021-07-06  Richard Biener  <rguenther@suse.de>
3209
3210         * doc/md.texi (vec_fmaddsub<mode>4): Document.
3211         (vec_fmsubadd<mode>4): Likewise.
3212         * optabs.def (vec_fmaddsub$a4): Add.
3213         (vec_fmsubadd$a4): Likewise.
3214         * internal-fn.def (IFN_VEC_FMADDSUB): Add.
3215         (IFN_VEC_FMSUBADD): Likewise.
3216         * tree-vect-slp-patterns.c (addsub_pattern::recognize):
3217         Refactor to handle IFN_VEC_FMADDSUB and IFN_VEC_FMSUBADD.
3218         (addsub_pattern::build): Likewise.
3219         * tree-vect-slp.c (vect_optimize_slp): CFN_VEC_FMADDSUB
3220         and CFN_VEC_FMSUBADD are not transparent for permutes.
3221         * config/i386/sse.md (vec_fmaddsub<mode>4): New expander.
3222         (vec_fmsubadd<mode>4): Likewise.
3223
3224 2021-07-06  Richard Biener  <rguenther@suse.de>
3225
3226         * doc/invoke.texi (fmove-loop-stores): Document.
3227         * common.opt (fmove-loop-stores): New option.
3228         * opts.c (default_options_table): Enable -fmove-loop-stores
3229         at -O1 but not -Og.
3230         * tree-ssa-loop-im.c (pass_lim::execute): Pass
3231         flag_move_loop_stores instead of true to
3232         loop_invariant_motion_in_fun.
3233
3234 2021-07-06  Iain Sandoe  <iain@sandoe.co.uk>
3235
3236         * doc/install.texi: Document --with-dsymutil.
3237
3238 2021-07-06  Andrew Pinski  <apinski@marvell.com>
3239
3240         PR tree-optimization/101256
3241         * dbgcnt.def (phiopt_edge_range): New counter.
3242         * tree-ssa-phiopt.c (replace_phi_edge_with_variable):
3243         Check to make sure the new name is defined in the same
3244         bb as the conditional before duplicating range info.
3245         Also add debug counter.
3246
3247 2021-07-06  Kewen Lin  <linkw@linux.ibm.com>
3248
3249         PR rtl-optimization/100328
3250         * config/i386/i386-options.c (ix86_option_override_internal):
3251         Set param_ira_consider_dup_in_all_alts to 0.
3252
3253 2021-07-06  Kewen Lin  <linkw@linux.ibm.com>
3254
3255         PR rtl-optimization/100328
3256         * doc/invoke.texi (ira-consider-dup-in-all-alts): Document new
3257         parameter.
3258         * ira.c (ira_get_dup_out_num): Adjust as parameter
3259         param_ira_consider_dup_in_all_alts.
3260         * params.opt (ira-consider-dup-in-all-alts): New.
3261         * ira-conflicts.c (process_regs_for_copy): Add one parameter
3262         single_input_op_has_cstr_p.
3263         (get_freq_for_shuffle_copy): New function.
3264         (add_insn_allocno_copies): Adjust as single_input_op_has_cstr_p.
3265         * ira-int.h (ira_get_dup_out_num): Add one bool parameter.
3266
3267 2021-07-05  Jeff Law  <jeffreyalaw@gmail.com>
3268
3269         * config/h8300/shiftrotate.md (shift-by-variable patterns): Update to
3270         generate condition code aware RTL directly.
3271
3272 2021-07-05  Andrew Pinski  <apinski@marvell.com>
3273
3274         PR tree-optimization/101039
3275         * match.pd (A CMP 0 ? A : -A): New patterns.
3276         * tree-ssa-phiopt.c (abs_replacement): Delete function.
3277         (tree_ssa_phiopt_worker): Don't call abs_replacement.
3278         Update comment about abs_replacement.
3279
3280 2021-07-05  Andrew Pinski  <apinski@marvell.com>
3281
3282         * tree-ssa-phiopt.c (gimple_simplify_phiopt):
3283         If "A ? B : C" fails to simplify, try "(!A) ? C : B".
3284
3285 2021-07-05  Andrew Pinski  <apinski@marvell.com>
3286
3287         * tree-ssa-phiopt.c (match_simplify_replacement):
3288         Add early_p argument. Call gimple_simplify_phiopt
3289         instead of gimple_simplify.
3290         (tree_ssa_phiopt_worker): Update call to
3291         match_simplify_replacement and allow unconditionally.
3292         (phiopt_early_allow): New function.
3293         (gimple_simplify_phiopt): New function.
3294
3295 2021-07-05  Andrew Pinski  <apinski@marvell.com>
3296
3297         PR middle-end/101237
3298         * fold-const.c (negate_expr_p): Remove call to element_mode
3299         and TREE_MODE/TREE_TYPE when calling HONOR_SIGNED_ZEROS,
3300         HONOR_SIGN_DEPENDENT_ROUNDING, and HONOR_SNANS.
3301         (fold_negate_expr_1): Likewise.
3302         (const_unop): Likewise.
3303         (fold_cond_expr_with_comparison): Likewise.
3304         (fold_binary_loc): Likewise.
3305         (fold_ternary_loc): Likewise.
3306         (tree_call_nonnegative_warnv_p): Likewise.
3307         * match.pd (-(A + B) -> (-B) - A): Likewise.
3308
3309 2021-07-05  Iain Sandoe  <iain@sandoe.co.uk>
3310
3311         * configure.ac: Handle --with-dsymutil in the same way as we
3312         do for the assembler and linker.  (DEFAULT_DSYMUTIL): New.
3313         Extract the type and version for the dsymutil configured or
3314         found by the default searches.
3315         * config.in: Regenerated.
3316         * configure: Regenerated.
3317         * collect2.c (do_dsymutil): Handle locating dsymutil in the
3318         same way as for the assembler and  linker.
3319         * config/darwin.h (DSYMUTIL): Delete.
3320         * gcc.c: Report a configured dsymutil correctly.
3321         * exec-tool.in: Allow for dsymutil.
3322
3323 2021-07-05  Uroš Bizjak  <ubizjak@gmail.com>
3324
3325         * config/i386/i386-expand.c (ix86_split_mmx_punpck):
3326         Handle V4QI and V2HI modes.
3327         (expand_vec_perm_blend): Allow 4-byte vector modes with TARGET_SSE4_1.
3328         Handle V4QI mode. Emit mmx_pblendvb32 for 4-byte modes.
3329         (expand_vec_perm_pshufb): Rewrite to use switch statemets.
3330         Handle 4-byte dual operands with TARGET_XOP and single operands
3331         with TARGET_SSSE3.  Emit mmx_ppermv32 for TARGET_XOP and
3332         mmx_pshufbv4qi3 for TARGET_SSSE3.
3333         (expand_vec_perm_pblendv): Allow 4-byte vector modes with TARGET_SSE4_1.
3334         (expand_vec_perm_interleave2): Allow 4-byte vector modes.
3335         (expand_vec_perm_pshufb2): Allow 4-byte vector modes with TARGET_SSSE3.
3336         (expand_vec_perm_even_odd_1): Handle V4QI mode.
3337         (expand_vec_perm_broadcast_1): Handle V4QI mode.
3338         (ix86_vectorize_vec_perm_const): Handle V4QI mode.
3339         * config/i386/mmx.md (mmx_ppermv32): New insn pattern.
3340         (mmx_pshufbv4qi3): Ditto.
3341         (*mmx_pblendw32): Ditto.
3342         (*mmx_pblendw64): Rename from *mmx_pblendw.
3343         (mmx_punpckhbw_low): New insn_and_split pattern.
3344         (mmx_punpcklbw_low): Ditto.
3345
3346 2021-07-05  Richard Biener  <rguenther@suse.de>
3347
3348         * tree-vect-loop-manip.c (vect_loop_versioning): Do not
3349         set LOOP_C_INFINITE on the vectorized loop.
3350
3351 2021-07-05  Richard Biener  <rguenther@suse.de>
3352
3353         PR middle-end/101291
3354         * cfgloopmanip.c (loop_version): Set the loop copy of the
3355         versioned loop to the new loop.
3356
3357 2021-07-04  Iain Sandoe  <iain@sandoe.co.uk>
3358
3359         PR target/100269
3360         * config.gcc: Ensure that Darwin biarch definitions are
3361         added before i386.h.
3362         * config/i386/darwin.h (TARGET_64BIT): Remove.
3363         (PR80556_WORKAROUND): New.
3364         (REAL_LIBGCC_SPEC): Amend to use PR80556_WORKAROUND.
3365         (DARWIN_SUBARCH_SPEC): New.
3366         * config/i386/darwin32-biarch.h (TARGET_64BIT_DEFAULT,
3367         TARGET_BI_ARCH, PR80556_WORKAROUND): New.
3368         (REAL_LIBGCC_SPEC): Remove.
3369         * config/i386/darwin64-biarch.h (TARGET_64BIT_DEFAULT,
3370         TARGET_BI_ARCH, PR80556_WORKAROUND): New.
3371         (REAL_LIBGCC_SPEC): Remove.
3372
3373 2021-07-03  H.J. Lu  <hjl.tools@gmail.com>
3374
3375         PR middle-end/101294
3376         * expr.c (store_constructor): Don't use vec_duplicate on vector.
3377
3378 2021-07-02  Martin Sebor  <msebor@redhat.com>
3379
3380         PR middle-end/98871
3381         PR middle-end/98512
3382         * diagnostic.c (get_any_inlining_info): New.
3383         (update_effective_level_from_pragmas): Handle inlining context.
3384         (diagnostic_enabled): Same.
3385         (diagnostic_report_diagnostic): Same.
3386         * diagnostic.h (struct diagnostic_info): Add ctor.
3387         (struct diagnostic_context): Add new member.
3388         * tree-diagnostic.c (set_inlining_locations): New.
3389         (tree_diagnostics_defaults): Set new callback pointer.
3390
3391 2021-07-02  Peter Bergner  <bergner@linux.ibm.com>
3392
3393         * config/rs6000/rs6000-builtin.def (BU_MMA_PAIR_LD, BU_MMA_PAIR_ST):
3394         New macros.
3395         (__builtin_vsx_lxvp, __builtin_vsx_stxvp): New built-ins.
3396         * config/rs6000/rs6000-call.c (rs6000_gimple_fold_mma_builtin): Expand
3397         lxvp and stxvp built-ins.
3398         (mma_init_builtins): Handle lxvp and stxvp built-ins.
3399         (builtin_function_type): Likewise.
3400         * doc/extend.texi (__builtin_vsx_lxvp, __builtin_mma_stxvp): Document.
3401
3402 2021-07-02  Jeff Law  <jeffreyalaw@gmail.com>
3403
3404         * config/h8300/h8300-protos.h (compute_a_shift_cc): Accept
3405         additional argument for the code.
3406         * config/h8300/h8300.c (compute_a_shift_cc): Accept additional
3407         argument for the code.  Just return if the ZN bits are useful or
3408         not rather than the old style CC_* enums.
3409         * config/h8300/shiftrotate.md (shiftqi_noscratch): Move before
3410         more generic shiftqi patterns.
3411         (shifthi_noscratch, shiftsi_noscratch): Similarly.
3412         (shiftqi_noscratch_set_flags): New pattern.
3413         (shifthi_noscratch_set_flags, shiftsi_noscratch_set_flags): Likewise.
3414
3415 2021-07-02  Andrew MacLeod  <amacleod@redhat.com>
3416
3417         PR tree-optimization/101223
3418         * range-op.cc (build_lt): Add -1 for signed values.
3419         (built_gt): Subtract -1 for signed values.
3420
3421 2021-07-02  David Faust  <david.faust@oracle.com>
3422
3423         * btfout.c (get_btf_kind): Support BTF_KIND_FLOAT.
3424         (btf_asm_type): Likewise.
3425
3426 2021-07-02  Jeff Law  <jeffreyalaw@gmail.com>
3427
3428         * config/h8300/h8300-protos.h (output_a_shift): Make first argument
3429         an array of rtx rather than a pointer to rtx.  Add code argument.
3430         (compute_a_shift_length): Similarly.
3431         * config/h8300/h8300.c (h8300_shift_costs): Adjust now that the
3432         shift itself isn't an operand.  Create dummy operand[0] to carry
3433         a mode and pass a suitable rtx code to compute_a_shift_length.
3434         (get_shift_alg): Adjust operand number of clobber in output templates.
3435         (output_a_shift): Make first argument an array of rtx rather than
3436         a pointer to rtx.  Add code argument for the type of shift.
3437         Adjust now that the shift itself is no longer an operand.
3438         (compute_a_shift_length): Similarly.
3439         * config/h8300/shiftrotate.md (shiftqi, shifthi, shiftsi): Use an
3440         iterator rather than nshift_operator.
3441         (shiftqi_noscratch, shifthi_noscratch, shiftsi_noscratch): Likewise.
3442         (shiftqi_clobber_flags): Adjust to API changes in output_a_shift
3443         and compute_a_shift_length.
3444         (shiftqi_noscratch_clobber_flags): Likewise.
3445         (shifthi_noscratch_clobber_flags): Likewise.
3446         (shiftsi_noscratch_clobber_flags): Likewise.
3447
3448 2021-07-02  Iain Sandoe  <iain@sandoe.co.uk>
3449
3450         PR debug/101283
3451         * config/darwin.h (DSYMUTIL_SPEC): Do not try to run
3452         dsymutil for BTF/CTF.
3453
3454 2021-07-02  Iain Sandoe  <iain@sandoe.co.uk>
3455
3456         PR debug/101283
3457         * config/darwin.h (CTF_INFO_SECTION_NAME): Update the
3458         segment to include BTF.
3459         (BTF_INFO_SECTION_NAME): New.
3460
3461 2021-07-02  Jeff Law  <jeffreyalaw@gmail.com>
3462
3463         * config/m32r/m32r-protos.h (call_operand): Adjust return type.
3464         (small_data_operand, memreg_operand, small_insn_p): Likewise.
3465         * config/m32r/m32r.c (call_operand): Adjust return type.
3466         (small_data_operand, memreg_operand): Likewise.
3467
3468 2021-07-02  Jeff Law  <jeffreyalaw@gmail.com>
3469
3470         * config/frv/frv-protos.h  (integer_register_operand): Adjust return
3471         type.
3472         (frv_load_operand, gpr_or_fpr_operand, gpr_no_subreg_operand): Likewise.
3473         (fpr_or_int6_operand, gpr_or_int_operand); Likewise.
3474         (gpr_or_int12_operand, gpr_or_int10_operand); Likewise.
3475         (move_source_operand, move_destination_operand): Likewise.
3476         (condexec_source_operand, condexec_dest_operand): Likewise.
3477         (lr_operand, gpr_or_memory_operand, fpr_or_memory_operand): Likewise.
3478         (reg_or_0_operand, fcc_operand, icc_operand, cc_operand): Likewise.
3479         (fcr_operand, icr_operand, cr_operand, call_operand): Likewise.
3480         (fpr_operand, even_reg_operand, odd_reg_operand): Likewise.
3481         (even_gpr_operand, odd_gpr_operand, quad_fpr_operand): Likewise.
3482         (even_fpr_operand, odd_fpr_operand): Likewise.
3483         (dbl_memory_one_insn_operand, dbl_memory_two_insn_operand): Likewise.
3484         (int12_operand, int6_operand, int5_operand, uint5_operand): Likewise.
3485         (uint4_operand, uint1_operand, int_2word_operand): Likewise
3486         (upper_int16_operand, uint16_operand, symbolic_operand): Likewise.
3487         (relational_operator, float_relational_operator): Likewise.
3488         (ccr_eqne_operator, minmax_operator): Likewise.
3489         (condexec_si_binary_operator, condexec_si_media_operator): Likewise.
3490         (condexec_si_divide_operator, condexec_si_unary_operator): Likewise.
3491         (condexec_sf_conv_operator, condexec_sf_add_operator): Likewise.
3492         (intop_compare_operator, acc_operand, even_acc_operand): Likewise.
3493         (quad_acc_operand, accg_operand): Likewise.
3494
3495 2021-07-02  Jeff Law  <jeffreyalaw@gmail.com>
3496
3497         * config/stormy16/stormy16-protos.h (xstormy16_below_100_symbol): Change
3498         return type to a bool.
3499         (nonimmediate_nonstack_operand): Likewise.
3500         (xstormy16_splittable_below100_operand): Likewise.
3501         * config/stormy16/stormy16.c (xstormy16_below_100_symbol): Fix
3502         return type.
3503         (xstormy16_splittable_below100_operand): Likewise.
3504
3505 2021-07-02  Richard Biener  <rguenther@suse.de>
3506
3507         PR tree-optimization/101293
3508         * tree-ssa-loop-im.c (mem_ref_hasher::equal): Compare MEM_REF bases
3509         with combined offsets.
3510         (gather_mem_refs_stmt): Hash MEM_REFs as if their offset were
3511         combined with the rest of the offset.
3512
3513 2021-07-02  Eric Botcazou  <ebotcazou@adacore.com>
3514
3515         * config/i386/i386.c (asm_preferred_eh_data_format): Always use the
3516         PIC encodings for PE-COFF targets.
3517
3518 2021-07-02  Jakub Jelinek  <jakub@redhat.com>
3519
3520         PR target/101286
3521         * config/i386/i386-expand.c (ix86_broadcast_from_integer_constant):
3522         Return nullptr for TImode inner mode.
3523
3524 2021-07-02  Richard Biener  <rguenther@suse.de>
3525
3526         PR tree-optimization/101280
3527         PR tree-optimization/101173
3528         * gimple-loop-interchange.cc
3529         (tree_loop_interchange::valid_data_dependences): Properly
3530         guard all dependence checks with DDR_REVERSED_P or its
3531         inverse.
3532
3533 2021-07-02  Hongyu Wang  <hongyu.wang@intel.com>
3534
3535         * config/i386/i386-expand.c (ix86_expand_builtin):
3536         Add branch to clear odata when ZF is set for asedecenc_expand
3537         and wideaesdecenc_expand.
3538
3539 2021-07-02  Eugene Rozenfeld  <erozen@microsoft.com>
3540
3541         * config/i386/gcc-auto-profile: regenerate
3542
3543 2021-07-02  liuhongt  <hongtao.liu@intel.com>
3544
3545         * config/i386/sse.md (trunc<mode><pmov_dst_4>2): Refined to ..
3546         (trunc<mode><pmov_dst_4_lower>2): this.
3547
3548 2021-07-01  David Malcolm  <dmalcolm@redhat.com>
3549
3550         * diagnostic.h (diagnostic_context::m_file_cache): New field.
3551         * input.c (class fcache): Rename to...
3552         (class file_cache_slot): ...this, making most members private and
3553         prefixing fields with "m_".
3554         (file_cache_slot::get_file_path): New accessor.
3555         (file_cache_slot::get_use_count): New accessor.
3556         (file_cache_slot::missing_trailing_newline_p): New accessor.
3557         (file_cache_slot::inc_use_count): New.
3558         (fcache_buffer_size): Move to...
3559         (file_cache_slot::buffer_size): ...here.
3560         (fcache_line_record_size): Move to...
3561         (file_cache_slot::line_record_size): ...here.
3562         (fcache_tab): Delete, in favor of global_dc->m_file_cache.
3563         (fcache_tab_size): Move to file_cache::num_file_slots.
3564         (diagnostic_file_cache_init): Update for move of fcache_tab
3565         to global_dc->m_file_cache.
3566         (diagnostic_file_cache_fini): Likewise.
3567         (lookup_file_in_cache_tab): Convert to...
3568         (file_cache::lookup_file): ...this.
3569         (diagnostics_file_cache_forcibly_evict_file): Update for move of
3570         fcache_tab to global_dc->m_file_cache, moving most of
3571         implementation to...
3572         (file_cache::forcibly_evict_file): ...this new function and...
3573         (file_cache_slot::evict): ...this new function.
3574         (evicted_cache_tab_entry): Convert to...
3575         (file_cache::evicted_cache_tab_entry): ...this.
3576         (add_file_to_cache_tab): Convert to...
3577         (file_cache::add_file): ...this, moving bulk of implementation
3578         to...
3579         (file_cache_slot::create): ..this new function.
3580         (file_cache::file_cache): New.
3581         (file_cache::~file_cache): New.
3582         (lookup_or_add_file_to_cache_tab): Convert to...
3583         (file_cache::lookup_or_add_file): ..this new function.
3584         (fcache::fcache): Rename to...
3585         (file_cache_slot::file_cache_slot): ...this, adding "m_" prefixes
3586         to fields.
3587         (fcache::~fcache): Rename to...
3588         (file_cache_slot::~file_cache_slot): ...this, adding "m_" prefixes
3589         to fields.
3590         (needs_read): Convert to...
3591         (file_cache_slot::needs_read_p): ...this.
3592         (needs_grow): Convert to...
3593         (file_cache_slot::needs_grow_p): ...this.
3594         (maybe_grow): Convert to...
3595         (file_cache_slot::maybe_grow): ...this.
3596         (read_data): Convert to...
3597         (file_cache_slot::read_data): ...this.
3598         (maybe_read_data): Convert to...
3599         (file_cache_slot::maybe_read_data): ...this.
3600         (get_next_line): Convert to...
3601         (file_cache_slot::get_next_line): ...this.
3602         (goto_next_line): Convert to...
3603         (file_cache_slot::goto_next_line): ...this.
3604         (read_line_num): Convert to...
3605         (file_cache_slot::read_line_num): ...this.
3606         (location_get_source_line): Update for moving of globals to
3607         global_dc->m_file_cache.
3608         (location_missing_trailing_newline): Likewise.
3609         * input.h (class file_cache_slot): New forward decl.
3610         (class file_cache): New.
3611
3612 2021-07-01  Michael Meissner  <meissner@linux.ibm.com>
3613
3614         * config/rs6000/rs6000.c (rs6000_maybe_emit_fp_cmove): Add IEEE
3615         128-bit floating point conditional move support.
3616         (have_compare_and_set_mask): Add IEEE 128-bit floating point
3617         types.
3618         * config/rs6000/rs6000.md (mov<mode>cc, IEEE128 iterator): New insn.
3619         (mov<mode>cc_p10, IEEE128 iterator): New insn.
3620         (mov<mode>cc_invert_p10, IEEE128 iterator): New insn.
3621         (fpmask<mode>, IEEE128 iterator): New insn.
3622         (xxsel<mode>, IEEE128 iterator): New insn.
3623
3624 2021-07-01  Iain Sandoe  <iain@sandoe.co.uk>
3625
3626         PR debug/101283
3627         * config/darwin.h (CTF_INFO_SECTION_NAME): New.
3628
3629 2021-07-01  H.J. Lu  <hjl.tools@gmail.com>
3630
3631         * config/i386/i386-expand.c (ix86_expand_vector_init_duplicate):
3632         Make it global.
3633         * config/i386/i386-protos.h (ix86_expand_vector_init_duplicate):
3634         New prototype.
3635         * config/i386/sse.md (INT_BROADCAST_MODE): New mode iterator.
3636         (vec_duplicate<mode>): New expander.
3637
3638 2021-07-01  H.J. Lu  <hjl.tools@gmail.com>
3639
3640         PR target/100865
3641         * config/i386/i386-expand.c (ix86_expand_vector_init_duplicate):
3642         New prototype.
3643         (ix86_byte_broadcast): New function.
3644         (ix86_convert_const_wide_int_to_broadcast): Likewise.
3645         (ix86_expand_move): Convert CONST_WIDE_INT to broadcast if mode
3646         size is 16 bytes or bigger.
3647         (ix86_broadcast_from_integer_constant): New function.
3648         (ix86_expand_vector_move): Convert CONST_WIDE_INT and CONST_VECTOR
3649         to broadcast if mode size is 16 bytes or bigger.
3650         * config/i386/i386-protos.h (ix86_gen_scratch_sse_rtx): New
3651         prototype.
3652         * config/i386/i386.c (ix86_gen_scratch_sse_rtx): New function.
3653
3654 2021-07-01  Uroš Bizjak  <ubizjak@gmail.com>
3655
3656         * config/i386/predicates.md (ix86_endbr_immediate_operand):
3657         Return true/false instead of 1/0.
3658         (movq_parallel): Ditto.
3659
3660 2021-07-01  Uroš Bizjak  <ubizjak@gmail.com>
3661
3662         * recog.c (general_operand): Return true/false instead of 1/0.
3663         (register_operand): Ditto.
3664         (immediate_operand): Ditto.
3665         (const_int_operand): Ditto.
3666         (const_scalar_int_operand): Ditto.
3667         (const_double_operand): Ditto.
3668         (push_operand): Ditto.
3669         (pop_operand): Ditto.
3670         (memory_operand): Ditto.
3671         (indirect_operand): Ditto.
3672
3673 2021-07-01  Uroš Bizjak  <ubizjak@gmail.com>
3674
3675         * genpreds.c (write_predicate_subfunction):
3676         Change the type of written subfunction to bool.
3677         (write_one_predicate_function):
3678         Change the type of written function to bool.
3679         (write_tm_preds_h): Ditto.
3680         * recog.h (*insn_operand_predicate_fn): Change the type to bool.
3681         * recog.c (general_operand): Change the type to bool.
3682         (address_operand): Ditto.
3683         (register_operand): Ditto.
3684         (pmode_register_operand): Ditto.
3685         (scratch_operand): Ditto.
3686         (immediate_operand): Ditto.
3687         (const_int_operand): Ditto.
3688         (const_scalar_int_operand): Ditto.
3689         (const_double_operand): Ditto.
3690         (nonimmediate_operand): Ditto.
3691         (nonmemory_operand): Ditto.
3692         (push_operand): Ditto.
3693         (pop_operand): Ditto.
3694         (memory_operand): Ditto.
3695         (indirect_operand): Ditto.
3696         (ordered_comparison_operator): Ditto.
3697         (comparison_operator): Ditto.
3698         * config/i386/i386-expand.c (ix86_expand_sse_cmp):
3699         Change the type of indirect predicate function to bool.
3700         * config/rs6000/rs6000.c (easy_vector_constant):
3701         Change the type to bool.
3702         * config/mips/mips-protos.h (m16_based_address_p):
3703         Change the type of operand 3 to bool.
3704
3705 2021-07-01  Richard Biener  <rguenther@suse.de>
3706
3707         PR tree-optimization/101280
3708         PR tree-optimization/101173
3709         * gimple-loop-interchange.cc
3710         (tree_loop_interchange::valid_data_dependences): Revert
3711         previous change and instead correctly handle DDR_REVERSED_P
3712         dependence.
3713
3714 2021-07-01  Richard Biener  <rguenther@suse.de>
3715
3716         PR tree-optimization/101278
3717         * tree-ssa-dse.c (dse_classify_store): First check for
3718         uses, then ignore stmt for chaining purposes.
3719
3720 2021-07-01  Richard Biener  <rguenther@suse.de>
3721
3722         PR tree-optimization/100778
3723         * tree-vect-slp.c (vect_schedule_slp_node): Do not place trapping
3724         vectorized ops ahead of their scalar BB.
3725
3726 2021-07-01  Uroš Bizjak  <ubizjak@gmail.com>
3727
3728         PR target/101044
3729         * config/i386/i386.md (*nabs<dwi>2_doubleword):
3730         New insn_and_split pattern.
3731         (*nabs<dwi>2_1): Ditto.
3732         * config/i386/i386-features.c
3733         (general_scalar_chain::compute_convert_gain):
3734         Handle (NEG (ABS (...))) RTX.  Rewrite src code
3735         scanner as switch statement.
3736         (general_scalar_chain::convert_insn):
3737         Handle (NEG (ABS (...))) RTX.
3738         (general_scalar_to_vector_candidate_p):
3739         Detect  (NEG (ABS (...))) RTX.  Reorder case statements
3740         for (AND (NOT (...) ...)) fallthrough.
3741
3742 2021-07-01  Richard Biener  <rguenther@suse.de>
3743
3744         PR tree-optimization/101178
3745         * tree-vect-slp.c (slpg_vertex::materialize): Remove.
3746         (slpg::perm_in): Add.
3747         (slpg::get_perm_in): Remove.
3748         (slpg::get_perm_materialized): Add.
3749         (vect_optimize_slp): Handle VEC_PERM nodes more optimally
3750         during permute propagation and materialization.
3751
3752 2021-07-01  Jakub Jelinek  <jakub@redhat.com>
3753
3754         PR debug/101266
3755         * dwarf2out.c (loc_list_from_tree_1): Handle COMPOUND_LITERAL_EXPR.
3756
3757 2021-07-01  Jakub Jelinek  <jakub@redhat.com>
3758
3759         PR middle-end/94366
3760         * omp-low.c (lower_rec_input_clauses): Rename is_fp_and_or to
3761         is_truth_op, set it for TRUTH_*IF_EXPR regardless of new_var's type,
3762         use boolean_type_node instead of integer_type_node as NE_EXPR type.
3763         (lower_reduction_clauses): Likewise.
3764
3765 2021-06-30  Hafiz Abid Qadeer  <abidh@codesourcery.com>
3766
3767         * config/gcn/gcn.c: Include dwarf2.h.
3768         (gcn_addr_space_debug): New function.
3769         (TARGET_ADDR_SPACE_DEBUG): New hook.
3770
3771 2021-06-30  Hafiz Abid Qadeer  <abidh@codesourcery.com>
3772
3773         * common/config/gcn/gcn-common.c
3774         (gcn_option_optimization_table): Change OPT_fomit_frame_pointer to -O3.
3775         * config/gcn/gcn.c (gcn_expand_prologue): Prefer the frame pointer
3776         when emitting CFI.
3777         (gcn_expand_prologue): Prefer the frame pointer when emitting CFI.
3778         (gcn_frame_pointer_rqd): New function.
3779         (TARGET_FRAME_POINTER_REQUIRED): New hook.
3780
3781 2021-06-30  Hafiz Abid Qadeer  <abidh@codesourcery.com>
3782
3783         * config/gcn/gcn.c (move_callee_saved_registers): Emit CFI notes for
3784         prologue register saves.
3785         (gcn_debug_unwind_info): Use UI_DWARF2.
3786         (gcn_dwarf_register_number): Map DWARF_LINK_REGISTER to DWARF PC.
3787         (gcn_dwarf_register_span): DWARF_LINK_REGISTER doesn't span.
3788         * config/gcn/gcn.h: (DWARF_FRAME_RETURN_COLUMN): New define.
3789         (DWARF_LINK_REGISTER): New define.
3790         (FIRST_PSEUDO_REGISTER): Increment.
3791         (FIXED_REGISTERS): Add entry for DWARF_LINK_REGISTER.
3792         (CALL_USED_REGISTERS): Likewise.
3793         (REGISTER_NAMES): Likewise.
3794
3795 2021-06-30  Richard Biener  <rguenther@suse.de>
3796
3797         PR tree-optimization/101267
3798         * tree-vect-stmts.c (vect_check_scalar_mask): Adjust
3799         API and use SLP compatible interface of vect_is_simple_use.
3800         Reject not vectorized SLP defs for callers that do not support
3801         that.
3802         (vect_check_store_rhs): Handle masked stores and pass down
3803         the appropriate operator index.
3804         (vectorizable_call): Adjust.
3805         (vectorizable_store): Likewise.
3806         (vectorizable_load): Likewise.  Handle SLP pecularity of
3807         masked loads.
3808         (vect_is_simple_use): Remove special-casing of masked stores.
3809
3810 2021-06-30  Tobias Burnus  <tobias@codesourcery.com>
3811
3812         * common.opt (foffload): Remove help as Driver only.
3813         * gcc.c (display_help): Add -foffload.
3814
3815 2021-06-30  Tobias Burnus  <tobias@codesourcery.com>
3816
3817         * gcc.c (close_at_file, execute): Replace alloca by XALLOCAVEC.
3818         (check_offload_target_name): Fix splitting OFFLOAD_TARGETS into
3819         a candidate list; better inform no offload target is configured
3820         and fix hint extraction when passed target is not '\0' at [len].
3821         * common.opt (foffload): Add tailing '.'.
3822         (foffload-options): Likewise; fix flag name in the help string.
3823
3824 2021-06-30  prathamesh.kulkarni  <prathamesh.kulkarni@linaro.org>
3825
3826         PR target/66791
3827         * config/arm/arm_neon.h: Move vabs intrinsics before vcage_f32.
3828         (vcage_f32): Gate comparison on __FAST_MATH__.
3829         (vcageq_f32): Likewise.
3830         (vcale_f32): Likewise.
3831         (vcaleq_f32): Likewise.
3832         (vcagt_f32): Likewise.
3833         (vcagtq_f32): Likewise.
3834         (vcalt_f32): Likewise.
3835         (vcaltq_f32): Likewise.
3836         (vcage_f16): Likewise.
3837         (vcageq_f16): Likewise.
3838         (vcale_f16): Likewise.
3839         (vcaleq_f16): Likewise.
3840         (vcagt_f16): Likewise.
3841         (vcagtq_f16): Likewise.
3842         (vcalt_f16): Likewise.
3843         (vcaltq_f16): Likewise.
3844
3845 2021-06-30  Richard Biener  <rguenther@suse.de>
3846
3847         PR tree-optimization/101264
3848         * tree-vect-slp.c (vect_optimize_slp): Propagate the
3849         computed perm_in to all "any" permute successors
3850         we cannot de-duplicate immediately.
3851
3852 2021-06-30  liuhongt  <hongtao.liu@intel.com>
3853
3854         PR target/101248
3855         * config/i386/sse.md
3856         (avx512f_sfixupimm<mode><sd_maskz_name><round_saeonly_name>):
3857         Refined to ..
3858         (avx512f_sfixupimm<mode><maskz_scalar_name><round_saeonly_name>):
3859         this.
3860         (avx512f_sfixupimm<mode>_mask<round_saeonly_name>"): Refined.
3861         * config/i386/subst.md (maskz_scalar): New define_subst.
3862         (maskz_scalar_name): New subst_attr.
3863         (maskz_scalar_op5): Ditto.
3864         (round_saeonly_maskz_scalar_op5): Ditto.
3865         (round_saeonly_maskz_scalar_operand5): Ditto.
3866
3867 2021-06-30  David Edelsohn  <dje.gcc@gmail.com>
3868
3869         * config/rs6000/rs6000.c (rs6000_xcoff_section_type_flags):
3870         Increase code CSECT alignment to at least 32 bytes.
3871         * config/rs6000/xcoff.h (TEXT_SECTION_ASM_OP): Add 32 byte
3872         alignment designation.
3873
3874 2021-06-29  Sergei Trofimovich  <siarheit@google.com>
3875
3876         * doc/generic.texi: Fix s/net yet/not yet/ typo.
3877
3878 2021-06-29  Andrew MacLeod  <amacleod@redhat.com>
3879
3880         PR tree-optimization/101254
3881         * range-op.cc (operator_minus::op1_op2_relation_effect): Check for
3882         wrapping/non-wrapping when setting the result range.
3883
3884 2021-06-29  Andrew MacLeod  <amacleod@redhat.com>
3885
3886         * value-query.cc (gimple_range_global): Allow phis.
3887
3888 2021-06-29  Andrew MacLeod  <amacleod@redhat.com>
3889
3890         * vr-values.c (vr_values::vrp_stmt_computes_nonzero): Use stmt.
3891         (simplify_using_ranges::op_with_boolean_value_range_p): Add a
3892         statement for location context.
3893         (check_for_binary_op_overflow): Ditto.
3894         (simplify_using_ranges::get_vr_for_comparison): Ditto.
3895         (simplify_using_ranges::compare_name_with_value): Ditto.
3896         (simplify_using_ranges::compare_names): Ditto.
3897         (vrp_evaluate_conditional_warnv_with_ops_using_ranges): Ditto.
3898         (simplify_using_ranges::simplify_truth_ops_using_ranges): Ditto.
3899         (simplify_using_ranges::simplify_min_or_max_using_ranges): Ditto.
3900         (simplify_using_ranges::simplify_internal_call_using_ranges): Ditto.
3901         (simplify_using_ranges::two_valued_val_range_p): Ditto.
3902         (simplify_using_ranges::simplify): Ditto.
3903         * vr-values.h: Adjust prototypes.
3904
3905 2021-06-29  Uroš Bizjak  <ubizjak@gmail.com>
3906
3907         PR target/95046
3908         * config/i386/mmx.md (vec_addsubv2sf3): New insn pattern.
3909
3910 2021-06-29  Julian Brown  <julian@codesourcery.com>
3911
3912         * config/gcn/gcn.c (gcn_init_libfuncs): New function.
3913         (TARGET_INIT_LIBFUNCS): Define target hook using above function.
3914         * config/gcn/gcn.h (UNITS_PER_WORD): Define to 8 for IN_LIBGCC2, 4
3915         otherwise.
3916         (LIBGCC2_UNITS_PER_WORD, BITS_PER_WORD): Remove definitions.
3917         (MAX_FIXED_MODE_SIZE): Change to 128.
3918
3919 2021-06-29  Julian Brown  <julian@codesourcery.com>
3920
3921         * config/gcn/gcn.md (UNSPEC_FLBIT_INT): New unspec constant.
3922         (s_mnemonic): Add clrsb.
3923         (gcn_flbit<mode>_int): Add insn pattern for SImode/DImode.
3924         (clrsb<mode>2): Add expander for SImode/DImode.
3925
3926 2021-06-29  Julian Brown  <julian@codesourcery.com>
3927
3928         * config/gcn/gcn.md (<su>mulsidi3, <su>mulsidi3_reg, <su>mulsidi3_imm,
3929         muldi3): Add patterns.
3930
3931 2021-06-29  Julian Brown  <julian@codesourcery.com>
3932
3933         * config/gcn/gcn.md (<su>mulsi3_highpart): Change to expander.
3934         (<su>mulsi3_highpart_reg, <su>mulsi3_highpart_imm): New patterns.
3935
3936 2021-06-29  Julian Brown  <julian@codesourcery.com>
3937
3938         * config/gcn/gcn.md (mulsi3): Make s_mulk_i32 variant clobber SCC.
3939
3940 2021-06-29  Joseph Myers  <joseph@codesourcery.com>
3941
3942         * btfout.c, ctfout.c: Include "memmodel.h".
3943
3944 2021-06-29  Tobias Burnus  <tobias@codesourcery.com>
3945
3946         * gcc.c (check_offload_target_name): Cast len argument to
3947         %q.*s to 'int'; avoid -Wstringop-truncation warning.
3948
3949 2021-06-29  Richard Biener  <rguenther@suse.de>
3950
3951         * tree-vect-slp.c (vect_optimize_slp): Forward propagate
3952         to "any" permute nodes and relax "any" permute proapgation
3953         during iterative backward propagation.
3954
3955 2021-06-29  Tobias Burnus  <tobias@codesourcery.com>
3956
3957         PR other/67300
3958         * common.opt (-foffload=): Update description.
3959         (-foffload-options=): New.
3960         * doc/invoke.texi (C Language Options): Document
3961         -foffload and -foffload-options.
3962         * gcc.c (check_offload_target_name): New, split off from
3963         handle_foffload_option.
3964         (check_foffload_target_names): New.
3965         (handle_foffload_option): Handle -foffload=default.
3966         (driver_handle_option): Update for -foffload-options.
3967         * lto-opts.c (lto_write_options): Use -foffload-options
3968         instead of -foffload.
3969         * lto-wrapper.c (merge_and_complain, append_offload_options):
3970         Likewise.
3971         * opts.c (common_handle_option): Likewise.
3972
3973 2021-06-29  Tobias Burnus  <tobias@codesourcery.com>
3974
3975         * doc/invoke.texi (C Language Options): Sort options
3976         alphabetically in optlist and also the description itself.
3977         Remove leftover -fallow-single-precision from and add missing
3978         -fgnu-tm to the optlist.
3979
3980 2021-06-29  Richard Biener  <rguenther@suse.de>
3981
3982         * tree-vect-slp.c (slpg_vertex::visited): Remove.
3983         (vect_slp_perms_eq): Handle -1 permutes.
3984         (vect_optimize_slp): Rewrite permute propagation.
3985
3986 2021-06-29  Jakub Jelinek  <jakub@redhat.com>
3987
3988         PR c++/101210
3989         * match.pd ((intptr_t)x eq/ne CST to x eq/ne (typeof x) CST): Don't
3990         perform the optimization in GENERIC when sanitizing and x has a
3991         reference type.
3992
3993 2021-06-29  Richard Biener  <rguenther@suse.de>
3994
3995         PR tree-optimization/101242
3996         * tree-vect-slp.c (vect_slp_build_vertices): Force-add
3997         PHIs with not represented initial values as leafs.
3998
3999 2021-06-29  Jan-Benedict Glaw  <jbglaw@getslash.de>
4000
4001         * config/pdp11/pdp11.h (ASM_OUTPUT_SKIP): Fix signedness warning.
4002         * config/pdp11/pdp11.c (pdp11_asm_print_operand_punct_valid_p): Remove
4003         "register" keyword.
4004         (pdp11_initial_elimination_offset) Remove unused variable.
4005         (pdp11_cmp_length) Ditto.
4006         (pdp11_insn_cost): Ditto, and fix signedness warning.
4007
4008 2021-06-29  David Edelsohn  <dje.gcc@gmail.com>
4009
4010         * btfout.c: Include tm_p.h.
4011         * ctfout.c: Same.
4012
4013 2021-06-28  Indu Bhagat  <indu.bhagat@oracle.com>
4014
4015         * config/bpf/bpf.c (bpf_expand_prologue): Do not mark insns as
4016         frame related.
4017         (bpf_expand_epilogue): Likewise.
4018         * config/bpf/bpf.h (DWARF2_FRAME_INFO): Define to 0.
4019         Do not define DBX_DEBUGGING_INFO.
4020
4021 2021-06-28  Indu Bhagat  <indu.bhagat@oracle.com>
4022
4023         * doc/invoke.texi: Document the CTF and BTF debug info options.
4024
4025 2021-06-28  Indu Bhagat  <indu.bhagat@oracle.com>
4026             David Faust  <david.faust@oracle.com>
4027             Jose E. Marchesi  <jose.marchesi@oracle.com>
4028             Weimin Pan  <weimin.pan@oracle.com>
4029
4030         * Makefile.in: Add ctfc.*, ctfout.c and btfout.c files to
4031         GTFILES.  Add new object files.
4032         * common.opt: Add CTF and BTF debug info options.
4033         * btfout.c: New file.
4034         * ctfc.c: Likewise.
4035         * ctfc.h: Likewise.
4036         * ctfout.c: Likewise.
4037         * dwarf2ctf.c: Likewise.
4038         * dwarf2ctf.h: Likewise.
4039         * dwarf2cfi.c (dwarf2out_do_frame): Acknowledge CTF_DEBUG and
4040         BTF_DEBUG.
4041         * dwarf2out.c (dwarf2out_source_line): Likewise.
4042         (dwarf2out_finish): Skip emitting DWARF if CTF or BTF are to
4043         be generated.
4044         (debug_format_do_cu): New function.
4045         (dwarf2out_early_finish): Traverse DIEs and emit CTF/BTF for
4046         them if requested.
4047         Include dwarf2ctf.c.
4048         * final.c (dwarf2_debug_info_emitted_p): Acknowledge DWARF-based debug
4049         formats.
4050         * flag-types.h (enum debug_info_type): Add CTF_DEBUG and BTF_DEBUG.
4051         (CTF_DEBUG): New bitmask.
4052         (BTF_DEBUG): Likewise.
4053         (enum ctf_debug_info_levels): New enum.
4054         * gengtype.c (open_base_files): Handle ctfc.h.
4055         (main): Handle uint32_t type.
4056         * flags.h (btf_debuginfo_p): New definition.
4057         (dwarf_based_debuginfo_p): Likewise.
4058         * opts.c (debug_type_names): Add entries for CTF and BTF.
4059         (btf_debuginfo_p): New function.
4060         (dwarf_based_debuginfo_p): Likewise.
4061         (common_handle_option): Handle -gctfN and -gbtf options.
4062         (set_debug_level): Set CTF_DEBUG, BTF_DEBUG whenever appropriate.
4063         * toplev.c (process_options): Inform the user and ignore -gctfLEVEL if
4064         frontend is not C.
4065
4066 2021-06-28  Jose E. Marchesi  <jose.marchesi@oracle.com>
4067
4068         * dwarf2out.c (AT_class): Function is no longer static.
4069         (AT_int): Likewise.
4070         (AT_unsigned): Likewise.
4071         (AT_loc): Likewise.
4072         (get_AT): Likewise.
4073         (get_AT_string): Likewise.
4074         (get_AT_flag): Likewise.
4075         (get_AT_unsigned): Likewise.
4076         (get_AT_ref): Likewise.
4077         (new_die_raw): Likewise.
4078         (lookup_decl_die): Likewise.
4079         (base_type_die): Likewise.
4080         (add_name_attribute): Likewise.
4081         (add_AT_int): Likewise.
4082         (add_AT_unsigned): Likewise.
4083         (add_AT_loc): Likewise.
4084         (dw_get_die_tag): New function.
4085         (dw_get_die_child): Likewise.
4086         (dw_get_die_sib): Likewise.
4087         (struct dwarf_file_data): Move from here to dwarf2out.h
4088         (struct dw_attr_struct): Likewise.
4089         * dwarf2out.h: Analogous changes.
4090
4091 2021-06-28  Martin Jambor  <mjambor@suse.cz>
4092
4093         PR ipa/93385
4094         * ipa-param-manipulation.h (class ipa_param_body_adjustments): New
4095         members m_dead_stmts and m_dead_ssas.
4096         * ipa-param-manipulation.c
4097         (ipa_param_body_adjustments::mark_dead_statements): New function.
4098         (ipa_param_body_adjustments::common_initialization): Call it on
4099         all removed but not split parameters.
4100         (ipa_param_body_adjustments::ipa_param_body_adjustments): Initialize
4101         new mwmbers.
4102         (ipa_param_body_adjustments::modify_call_stmt): Remove arguments that
4103         are dead.
4104         * tree-inline.c (remap_gimple_stmt): Do not copy dead statements, reset
4105         dead debug statements.
4106         (copy_phis_for_bb): Do not copy dead PHI nodes.
4107
4108 2021-06-28  Martin Jambor  <mjambor@suse.cz>
4109
4110         PR ipa/93385
4111         * symtab-clones.h (clone_info): Removed member param_adjustments.
4112         * ipa-param-manipulation.h: Adjust initial comment to reflect how we
4113         deal with pass-through splits now.
4114         (ipa_param_performed_split): Removed.
4115         (ipa_param_adjustments::modify_call): Adjusted parameters.
4116         (class ipa_param_body_adjustments): Adjusted parameters of
4117         register_replacement, modify_gimple_stmt and modify_call_stmt.
4118         (ipa_verify_edge_has_no_modifications): Declare.
4119         (ipa_edge_modifications_finalize): Declare.
4120         * cgraph.c (cgraph_edge::redirect_call_stmt_to_callee): Remove
4121         performed_splits processing, pas only edge to padjs->modify_call,
4122         check that call arguments were not modified if they should not have
4123         been.
4124         * cgraphclones.c (cgraph_node::create_clone): Do not copy performed
4125         splits.
4126         * ipa-param-manipulation.c (struct pass_through_split_map): New type.
4127         (ipa_edge_modification_info): Likewise.
4128         (ipa_edge_modification_sum): Likewise.
4129         (ipa_edge_modifications): New edge summary.
4130         (ipa_verify_edge_has_no_modifications): New function.
4131         (transitive_split_p): Removed.
4132         (transitive_split_map): Likewise.
4133         (init_transitive_splits): Likewise.
4134         (ipa_param_adjustments::modify_call): Adjusted to use the new edge
4135         summary instead of performed_splits.
4136         (ipa_param_body_adjustments::register_replacement): Drop dummy
4137         parameter, set base_index of the created ipa_param_body_replacement.
4138         (phi_arg_will_live_p): New function.
4139         (ipa_param_body_adjustments::common_initialization): Do not create
4140         IPA_SRA dummy decls.
4141         (simple_tree_swap_info): Removed.
4142         (remap_split_decl_to_dummy): Likewise.
4143         (record_argument_state_1): New function.
4144         (record_argument_state): Likewise.
4145         (ipa_param_body_adjustments::modify_call_stmt): New parameter
4146         orig_stmt.  Do not work with dummy decls, save necessary info about
4147         changes to ipa_edge_modifications.
4148         (ipa_param_body_adjustments::modify_gimple_stmt): New parameter
4149         orig_stmt, pass it to modify_call_stmt.
4150         (ipa_param_body_adjustments::modify_cfun_body): Adjust call to
4151         modify_gimple_stmt.
4152         (ipa_edge_modifications_finalize): New function.
4153         * tree-inline.c (remap_gimple_stmt): Pass original statement to
4154         modify_gimple_stmt.
4155         (copy_phis_for_bb): Do not copy dead PHI nodes.
4156         (expand_call_inline): Do not remap performed_splits.
4157         (update_clone_info): Likewise.
4158         * toplev.c: Include ipa-param-manipulation.h.
4159         (toplev::finalize): Call ipa_edge_modifications_finalize.
4160
4161 2021-06-28  Andrew Pinski  <apinski@marvell.com>
4162
4163         * tree-ssa-phiopt.c (replace_phi_edge_with_variable): Duplicate range
4164         info if we're the only things setting the target PHI.
4165         (value_replacement): Don't duplicate range here.
4166         (minmax_replacement): Likewise.
4167
4168 2021-06-28  Richard Biener  <rguenther@suse.de>
4169
4170         PR tree-optimization/101229
4171         * gimple-walk.c (gimple_walk_op): Handle PHIs.
4172
4173 2021-06-28  Martin Liska  <mliska@suse.cz>
4174
4175         * config/v850/v850.c (construct_dispose_instruction): Allocate
4176         a bigger buffer.
4177         (construct_prepare_instruction): Likewise.
4178
4179 2021-06-28  Martin Liska  <mliska@suse.cz>
4180
4181         * config/v850/v850.c (v850_option_override): Build default
4182         target node.
4183         (v850_can_inline_p): New.  Allow MASK_PROLOG_FUNCTION to be
4184         ignored for inlining.
4185         (TARGET_CAN_INLINE_P): New.
4186
4187 2021-06-28  Richard Biener  <rguenther@suse.de>
4188
4189         PR tree-optimization/101207
4190         * tree-vect-slp.c (vect_optimize_slp): Do BB reduction
4191         permute eliding for load permutations properly.
4192
4193 2021-06-28  Richard Biener  <rguenther@suse.de>
4194
4195         PR tree-optimization/101173
4196         * gimple-loop-interchange.cc
4197         (tree_loop_interchange::valid_data_dependences): Disallow outer
4198         loop dependence distance of zero.
4199
4200 2021-06-28  liuhongt  <hongtao.liu@intel.com>
4201
4202         PR target/100648
4203         * config/i386/sse.md (*avx_cmp<mode>3_lt): New
4204         define_insn_and_split.
4205         (*avx_cmp<mode>3_ltint): Ditto.
4206         (*avx2_pcmp<mode>3_3): Ditto.
4207         (*avx2_pcmp<mode>3_4): Ditto.
4208         (*avx2_pcmp<mode>3_5): Ditto.
4209
4210 2021-06-28  liuhongt  <hongtao.liu@intel.com>
4211
4212         * config/i386/i386-builtin.def (IX86_BUILTIN_BLENDVPD256,
4213         IX86_BUILTIN_BLENDVPS256, IX86_BUILTIN_PBLENDVB256,
4214         IX86_BUILTIN_BLENDVPD, IX86_BUILTIN_BLENDVPS,
4215         IX86_BUILTIN_PBLENDVB128): Replace icode with
4216         CODE_FOR_nothing.
4217         * config/i386/i386.c (ix86_gimple_fold_builtin): Fold blendv
4218         builtins.
4219         * config/i386/sse.md (*<sse4_1_avx2>_pblendvb_lt_subreg_not):
4220         New pre_reload splitter.
4221
4222 2021-06-27  Andrew Pinski  <apinski@marvell.com>
4223
4224         PR middle-end/101230
4225         * fold-const.c (fold_ternary_loc): Check
4226         the return value of invert_tree_comparison.
4227
4228 2021-06-27  David Edelsohn  <dje.gcc@gmail.com>
4229
4230         * config.gcc: Add SPDX License Identifier.
4231         (powerpc-ibm-aix789): Default to aix73.h.
4232         (powerpc-ibm-aix7.2.*.*): New stanza.
4233         * config/rs6000/aix72.h: Add SPDX License Identifier.
4234         * config/rs6000/aix73.h: New file.
4235
4236 2021-06-26  Jason Merrill  <jason@redhat.com>
4237
4238         * except.c: #include "dwarf2.h" instead of "dwarf2out.h".
4239
4240 2021-06-26  Andrew Pinski  <apinski@marvell.com>
4241
4242         * genmatch.c (lower_cond): Copy for_subst_vec
4243         for the simplify also.
4244         (lower): Swap the order for lower_for and lower_cond.
4245
4246 2021-06-26  Andrew Pinski  <apinski@marvell.com>
4247
4248         * tree-ssa-phiopt.c (match_simplify_replacement): Reset
4249         flow senatitive info on the moved ssa set.
4250
4251 2021-06-26  Andrew Pinski  <apinski@marvell.com>
4252
4253         * fold-const.c (fold_cond_expr_with_comparison):
4254         Exand arg0 into comp_code, arg00, and arg01.
4255         (fold_ternary_loc): Use invert_tree_comparison
4256         instead of fold_invert_truthvalue for the case
4257         where we have A CMP B ? C : A.
4258
4259 2021-06-25  Martin Sebor  <msebor@redhat.com>
4260
4261         PR middle-end/101216
4262         * calls.c (maybe_warn_rdwr_sizes): Use the no_warning constant.
4263
4264 2021-06-25  Jeff Law  <jeffreyalaw@gmail.com>
4265
4266         * config/h8300/h8300.c (select_cc_mode): Handle ASHIFTRT and LSHIFTRT.
4267
4268 2021-06-25  Richard Biener  <rguenther@suse.de>
4269
4270         PR tree-optimization/101202
4271         * tree-vect-slp.c (vect_optimize_slp): Explicitely handle
4272         failed nodes.
4273
4274 2021-06-25  Richard Biener  <rguenther@suse.de>
4275
4276         * tree-vect-slp-patterns.c (addsub_pattern::build): Copy
4277         STMT_VINFO_REDUC_DEF from the original representative.
4278
4279 2021-06-25  Martin Sebor  <msebor@redhat.com>
4280
4281         * builtins.c (warn_string_no_nul): Replace uses of TREE_NO_WARNING,
4282         gimple_no_warning_p and gimple_set_no_warning with
4283         warning_suppressed_p, and suppress_warning.
4284         (c_strlen): Same.
4285         (maybe_warn_for_bound): Same.
4286         (warn_for_access): Same.
4287         (check_access): Same.
4288         (expand_builtin_strncmp): Same.
4289         (fold_builtin_varargs): Same.
4290         * calls.c (maybe_warn_nonstring_arg): Same.
4291         (maybe_warn_rdwr_sizes): Same.
4292         * cfgexpand.c (expand_call_stmt): Same.
4293         * cgraphunit.c (check_global_declaration): Same.
4294         * fold-const.c (fold_undefer_overflow_warnings): Same.
4295         (fold_truth_not_expr): Same.
4296         (fold_unary_loc): Same.
4297         (fold_checksum_tree): Same.
4298         * gimple-array-bounds.cc (array_bounds_checker::check_array_ref): Same.
4299         (array_bounds_checker::check_mem_ref): Same.
4300         (array_bounds_checker::check_addr_expr): Same.
4301         (array_bounds_checker::check_array_bounds): Same.
4302         * gimple-expr.c (copy_var_decl): Same.
4303         * gimple-fold.c (gimple_fold_builtin_strcpy): Same.
4304         (gimple_fold_builtin_strncat): Same.
4305         (gimple_fold_builtin_stxcpy_chk): Same.
4306         (gimple_fold_builtin_stpcpy): Same.
4307         (gimple_fold_builtin_sprintf): Same.
4308         (fold_stmt_1): Same.
4309         * gimple-ssa-isolate-paths.c (diag_returned_locals): Same.
4310         * gimple-ssa-nonnull-compare.c (do_warn_nonnull_compare): Same.
4311         * gimple-ssa-sprintf.c (handle_printf_call): Same.
4312         * gimple-ssa-store-merging.c (imm_store_chain_info::output_merged_store): Same.
4313         * gimple-ssa-warn-restrict.c (maybe_diag_overlap): Same.
4314         * gimple-ssa-warn-restrict.h: Adjust declarations.
4315         (maybe_diag_access_bounds): Replace uses of TREE_NO_WARNING,
4316         gimple_no_warning_p and gimple_set_no_warning with
4317         warning_suppressed_p, and suppress_warning.
4318         (check_call): Same.
4319         (check_bounds_or_overlap): Same.
4320         * gimple.c (gimple_build_call_from_tree): Same.
4321         * gimplify.c (gimplify_return_expr): Same.
4322         (gimplify_cond_expr): Same.
4323         (gimplify_modify_expr_complex_part): Same.
4324         (gimplify_modify_expr): Same.
4325         (gimple_push_cleanup): Same.
4326         (gimplify_expr): Same.
4327         * omp-expand.c (expand_omp_for_generic): Same.
4328         (expand_omp_taskloop_for_outer): Same.
4329         * omp-low.c (lower_rec_input_clauses): Same.
4330         (lower_lastprivate_clauses): Same.
4331         (lower_send_clauses): Same.
4332         (lower_omp_target): Same.
4333         * tree-cfg.c (pass_warn_function_return::execute): Same.
4334         * tree-complex.c (create_one_component_var): Same.
4335         * tree-inline.c (remap_gimple_op_r): Same.
4336         (copy_tree_body_r): Same.
4337         (declare_return_variable): Same.
4338         (expand_call_inline): Same.
4339         * tree-nested.c (lookup_field_for_decl): Same.
4340         * tree-sra.c (create_access_replacement): Same.
4341         (generate_subtree_copies): Same.
4342         * tree-ssa-ccp.c (pass_post_ipa_warn::execute): Same.
4343         * tree-ssa-forwprop.c (combine_cond_expr_cond): Same.
4344         * tree-ssa-loop-ch.c (ch_base::copy_headers): Same.
4345         * tree-ssa-loop-im.c (execute_sm): Same.
4346         * tree-ssa-phiopt.c (cond_store_replacement): Same.
4347         * tree-ssa-strlen.c (maybe_warn_overflow): Same.
4348         (handle_builtin_strcpy): Same.
4349         (maybe_diag_stxncpy_trunc): Same.
4350         (handle_builtin_stxncpy_strncat): Same.
4351         (handle_builtin_strcat): Same.
4352         * tree-ssa-uninit.c (get_no_uninit_warning): Same.
4353         (set_no_uninit_warning): Same.
4354         (uninit_undefined_value_p): Same.
4355         (warn_uninit): Same.
4356         (maybe_warn_operand): Same.
4357         * tree-vrp.c (compare_values_warnv): Same.
4358         * vr-values.c (vr_values::extract_range_for_var_from_comparison_expr): Same.
4359         (test_for_singularity): Same.
4360         * gimple.h (warning_suppressed_p): New function.
4361         (suppress_warning): Same.
4362         (copy_no_warning): Same.
4363         (gimple_set_block): Call gimple_set_location.
4364         (gimple_set_location): Call copy_warning.
4365
4366 2021-06-25  Martin Sebor  <msebor@redhat.com>
4367
4368         * tree.h (warning_suppressed_at, copy_warning,
4369         warning_suppressed_p, suppress_warning): New functions.
4370
4371 2021-06-25  Martin Sebor  <msebor@redhat.com>
4372
4373         * Makefile.in (OBJS-libcommon): Add diagnostic-spec.o.
4374         * gengtype.c (open_base_files): Add diagnostic-spec.h.
4375         * diagnostic-spec.c: New file.
4376         * diagnostic-spec.h: New file.
4377         * tree.h (no_warning, all_warnings, suppress_warning_at): New
4378         declarations.
4379         * warning-control.cc: New file.
4380
4381 2021-06-25  liuhongt  <hongtao.liu@intel.com>
4382
4383         PR target/101185
4384         * config/i386/i386.c (x86_order_regs_for_local_alloc):
4385         Revert r12-1669.
4386
4387 2021-06-24  Andrew MacLeod  <amacleod@redhat.com>
4388
4389         PR tree-optimization/101189
4390         * gimple-range-fold.cc (fold_using_range::range_of_range_op): Pass
4391         LHS range of condition to postfold routine.
4392         (fold_using_range::postfold_gcond_edges): Only process the TRUE or
4393         FALSE edge if the LHS range supports it being taken.
4394         * gimple-range-fold.h (postfold_gcond_edges): Add range parameter.
4395
4396 2021-06-24  Andrew MacLeod  <amacleod@redhat.com>
4397
4398         * value-relation.cc (equiv_oracle::dump): Do not dump NULL blocks.
4399         (relation_oracle::find_relation_block): Check correct bitmap.
4400         (relation_oracle::dump): Do not dump NULL blocks.
4401
4402 2021-06-24  Andrew MacLeod  <amacleod@redhat.com>
4403
4404         * gimple-range-cache.cc (ranger_cache::propagate_cache): Call
4405         range_on_edge instead of manually calculating.
4406
4407 2021-06-24  Andrew MacLeod  <amacleod@redhat.com>
4408
4409         * range-op.cc: Fix comment.
4410
4411 2021-06-24  Uroš Bizjak  <ubizjak@gmail.com>
4412
4413         PR target/89021
4414         * config/i386/i386-expand.c (ix86_expand_sse_unpack):
4415         Handle V8QI and V4HI modes.
4416         * config/i386/mmx.md (sse4_1_<any_extend:code>v4qiv4hi2):
4417         New insn pattern.
4418         (sse4_1_<any_extend:code>v4qiv4hi2): Ditto.
4419         (mmxpackmode): New mode attribute.
4420         (vec_pack_trunc_<mmxpackmode:mode>): New expander.
4421         (mmxunpackmode): New mode attribute.
4422         (vec_unpacks_lo_<mmxunpackmode:mode>): New expander.
4423         (vec_unpacks_hi_<mmxunpackmode:mode>): Ditto.
4424         (vec_unpacku_lo_<mmxunpackmode:mode>): Ditto.
4425         (vec_unpacku_hi_<mmxunpackmode:mode>): Ditto.
4426         * config/i386/i386.md (extsuffix): Move from ...
4427         * config/i386/sse.md: ... here.
4428
4429 2021-06-24  Eric Botcazou  <ebotcazou@adacore.com>
4430
4431         * dwarf2out.c (dwarf2out_assembly_start): Emit .file 0 marker here..
4432         (dwarf2out_finish): ...instead of here.
4433
4434 2021-06-24  Eric Botcazou  <ebotcazou@adacore.com>
4435
4436         * configure.ac (--gdwarf-5 option): Use objdump instead of readelf.
4437         (working --gdwarf-4/--gdwarf-5 for all sources): Likewise.
4438         (--gdwarf-4 not refusing generated .debug_line): Adjust for Windows.
4439         * configure: Regenerate.
4440
4441 2021-06-24  Richard Biener  <rguenther@suse.de>
4442
4443         * config/i386/sse.md (vec_addsubv4df3, vec_addsubv2df3,
4444         vec_addsubv8sf3, vec_addsubv4sf3): Merge into ...
4445         (vec_addsub<mode>3): ... using a new addsub_cst mode attribute.
4446
4447 2021-06-24  Richard Biener  <rguenther@suse.de>
4448
4449         * config/i386/sse.md (avx_addsubv4df3): Rename to
4450         vec_addsubv4df3.
4451         (avx_addsubv8sf3): Rename to vec_addsubv8sf3.
4452         (sse3_addsubv2df3): Rename to vec_addsubv2df3.
4453         (sse3_addsubv4sf3): Rename to vec_addsubv4sf3.
4454         * config/i386/i386-builtin.def: Adjust.
4455         * internal-fn.def (VEC_ADDSUB): New internal optab fn.
4456         * optabs.def (vec_addsub_optab): New optab.
4457         * tree-vect-slp-patterns.c (class addsub_pattern): New.
4458         (slp_patterns): Add addsub_pattern.
4459         * tree-vect-slp.c (vect_optimize_slp): Disable propagation
4460         across CFN_VEC_ADDSUB.
4461         * tree-vectorizer.h (vect_pattern::vect_pattern): Make
4462         m_ops optional.
4463         * doc/md.texi (vec_addsub<mode>3): Document.
4464
4465 2021-06-24  Jakub Jelinek  <jakub@redhat.com>
4466
4467         PR middle-end/101170
4468         * df-scan.c (df_ref_record): For paradoxical big-endian SUBREGs
4469         where regno + subreg_regno_offset wraps around use 0 as starting
4470         regno.
4471
4472 2021-06-24  Jakub Jelinek  <jakub@redhat.com>
4473
4474         PR middle-end/101172
4475         * stor-layout.c (finish_bitfield_representative): If nextf has
4476         error_mark_node type, set repr type to error_mark_node too.
4477
4478 2021-06-24  Ilya Leoshkevich  <iii@linux.ibm.com>
4479
4480         * config/s390/s390.c (s390_function_profiler): Ignore labelno
4481         parameter.
4482         * config/s390/s390.h (NO_PROFILE_COUNTERS): Define.
4483
4484 2021-06-24  Richard Biener  <rguenther@suse.de>
4485
4486         * tree-vect-slp.c (vect_optimize_slp): Do not propagate
4487         across operations that have different semantics on different
4488         lanes.
4489
4490 2021-06-24  Jakub Jelinek  <jakub@redhat.com>
4491
4492         * tree.h (OMP_CLAUSE_MAP_IN_REDUCTION): Document meaning for OpenMP.
4493         * gimplify.c (gimplify_scan_omp_clauses): For OpenMP map clauses
4494         with OMP_CLAUSE_MAP_IN_REDUCTION flag partially defer gimplification
4495         of non-decl OMP_CLAUSE_DECL.  For OMP_CLAUSE_IN_REDUCTION on
4496         OMP_TARGET user outer_ctx instead of ctx for placeholders and
4497         initializer/combiner gimplification.
4498         * omp-low.c (scan_sharing_clauses): Handle OMP_CLAUSE_MAP_IN_REDUCTION
4499         on target constructs.
4500         (lower_rec_input_clauses): Likewise.
4501         (lower_omp_target): Likewise.
4502         * omp-expand.c (expand_omp_target): Temporarily ignore nowait clause
4503         on target if in_reduction is present.
4504
4505 2021-06-24  Kewen Lin  <linkw@linux.ibm.com>
4506
4507         * tree-predcom.c (class pcom_worker): New class.
4508         (release_chain): Renamed to...
4509         (pcom_worker::release_chain): ...this.
4510         (release_chains): Renamed to...
4511         (pcom_worker::release_chains): ...this.
4512         (aff_combination_dr_offset): Renamed to...
4513         (pcom_worker::aff_combination_dr_offset): ...this.
4514         (determine_offset): Renamed to...
4515         (pcom_worker::determine_offset): ...this.
4516         (class comp_ptrs): New class.
4517         (split_data_refs_to_components): Renamed to...
4518         (pcom_worker::split_data_refs_to_components): ...this,
4519         and update with class comp_ptrs.
4520         (suitable_component_p): Renamed to...
4521         (pcom_worker::suitable_component_p): ...this.
4522         (filter_suitable_components): Renamed to...
4523         (pcom_worker::filter_suitable_components): ...this.
4524         (valid_initializer_p): Renamed to...
4525         (pcom_worker::valid_initializer_p): ...this.
4526         (find_looparound_phi): Renamed to...
4527         (pcom_worker::find_looparound_phi): ...this.
4528         (add_looparound_copies): Renamed to...
4529         (pcom_worker::add_looparound_copies): ...this.
4530         (determine_roots_comp): Renamed to...
4531         (pcom_worker::determine_roots_comp): ...this.
4532         (determine_roots): Renamed to...
4533         (pcom_worker::determine_roots): ...this.
4534         (single_nonlooparound_use): Renamed to...
4535         (pcom_worker::single_nonlooparound_use): ...this.
4536         (remove_stmt): Renamed to...
4537         (pcom_worker::remove_stmt): ...this.
4538         (execute_pred_commoning_chain): Renamed to...
4539         (pcom_worker::execute_pred_commoning_chain): ...this.
4540         (execute_pred_commoning): Renamed to...
4541         (pcom_worker::execute_pred_commoning): ...this.
4542         (struct epcc_data): New member worker.
4543         (execute_pred_commoning_cbck): Call execute_pred_commoning
4544         with pcom_worker pointer.
4545         (find_use_stmt): Renamed to...
4546         (pcom_worker::find_use_stmt): ...this.
4547         (find_associative_operation_root): Renamed to...
4548         (pcom_worker::find_associative_operation_root): ...this.
4549         (find_common_use_stmt): Renamed to...
4550         (pcom_worker::find_common_use_stmt): ...this.
4551         (combinable_refs_p): Renamed to...
4552         (pcom_worker::combinable_refs_p): ...this.
4553         (reassociate_to_the_same_stmt): Renamed to...
4554         (pcom_worker::reassociate_to_the_same_stmt): ...this.
4555         (stmt_combining_refs): Renamed to...
4556         (pcom_worker::stmt_combining_refs): ...this.
4557         (combine_chains): Renamed to...
4558         (pcom_worker::combine_chains): ...this.
4559         (try_combine_chains): Renamed to...
4560         (pcom_worker::try_combine_chains): ...this.
4561         (prepare_initializers_chain): Renamed to...
4562         (pcom_worker::prepare_initializers_chain): ...this.
4563         (prepare_initializers): Renamed to...
4564         (pcom_worker::prepare_initializers): ...this.
4565         (prepare_finalizers_chain): Renamed to...
4566         (pcom_worker::prepare_finalizers_chain): ...this.
4567         (prepare_finalizers): Renamed to...
4568         (pcom_worker::prepare_finalizers): ...this.
4569         (tree_predictive_commoning_loop): Renamed to...
4570         (pcom_worker::tree_predictive_commoning_loop): ...this, adjust
4571         some calls and remove some cleanup code.
4572         (tree_predictive_commoning): Adjusted to use pcom_worker instance.
4573         (static variable looparound_phis): Remove.
4574         (static variable name_expansions): Remove.
4575
4576 2021-06-24  Richard Biener  <rguenther@suse.de>
4577
4578         * tree-vect-slp.c (slpg_vertex): New struct.
4579         (vect_slp_build_vertices): Adjust.
4580         (vect_optimize_slp): Likewise.  Maintain an outgoing permute
4581         and a materialized one.
4582
4583 2021-06-24  Richard Biener  <rguenther@suse.de>
4584
4585         PR tree-optimization/101105
4586         * tree-vect-data-refs.c (vect_prune_runtime_alias_test_list):
4587         Only ignore steps when they are equal or scalar order is preserved.
4588
4589 2021-06-24  liuhongt  <hongtao.liu@intel.com>
4590
4591         PR target/98434
4592         * config/i386/i386-expand.c (ix86_expand_vec_interleave):
4593         Adjust comments for ix86_expand_vecop_qihi2.
4594         (ix86_expand_vecmul_qihi): Renamed to ..
4595         (ix86_expand_vecop_qihi2): Adjust function prototype to
4596         support shift operation, add static to definition.
4597         (ix86_expand_vec_shift_qihi_constant): Add static to definition.
4598         (ix86_expand_vecop_qihi): Call ix86_expand_vecop_qihi2 and
4599         ix86_expand_vec_shift_qihi_constant.
4600         * config/i386/i386-protos.h (ix86_expand_vecmul_qihi): Deleted.
4601         (ix86_expand_vec_shift_qihi_constant): Deleted.
4602         * config/i386/sse.md (VI12_256_512_AVX512VL): New mode
4603         iterator.
4604         (mulv8qi3): Call ix86_expand_vecop_qihi directly, add
4605         condition TARGET_64BIT.
4606         (mul<mode>3): Ditto.
4607         (<insn><mode>3): Ditto.
4608         (vlshr<mode>3): Extend to support avx512 vlshr.
4609         (v<insn><mode>3): New expander for
4610         vashr/vlshr/vashl.
4611         (v<insn>v8qi3): Ditto.
4612         (vashrv8hi3<mask_name>): Renamed to ..
4613         (vashr<mode>3): And extend to support V16QImode for avx512.
4614         (vashrv16qi3): Deleted.
4615         (vashrv2di3<mask_name>): Extend expander to support avx512
4616         instruction.
4617
4618 2021-06-23  Dimitar Dimitrov  <dimitar@dinux.eu>
4619
4620         * doc/lto.texi (Design Overview): Update that slim objects are
4621         the default.
4622
4623 2021-06-23  Aaron Sawdey  <acsawdey@linux.ibm.com>
4624
4625         * config/rs6000/rs6000-cpus.def: Take OPTION_MASK_PCREL_OPT out
4626         of OTHER_POWER10_MASKS so it will not be enabled by default.
4627
4628 2021-06-23  Richard Biener  <rguenther@suse.de>
4629             Martin Jambor  <mjambor@suse.cz>
4630
4631         * tree-inline.c (setup_one_parameter): Set TREE_READONLY of the
4632         param replacement unconditionally.  Adjust comment.
4633
4634 2021-06-23  Andrew MacLeod  <amacleod@redhat.com>
4635
4636         * Makefile.in (OBJS): Add gimple-range-fold.o
4637         * gimple-range-fold.cc: New.
4638         * gimple-range-fold.h: New.
4639         * gimple-range-gori.cc (gimple_range_calc_op1): Move to here.
4640         (gimple_range_calc_op2): Ditto.
4641         * gimple-range-gori.h: Move prototypes to here.
4642         * gimple-range.cc: Adjust include files.
4643         (fur_source:fur_source): Relocate to gimple-range-fold.cc.
4644         (fur_source::get_operand): Ditto.
4645         (fur_source::get_phi_operand): Ditto.
4646         (fur_source::query_relation): Ditto.
4647         (fur_source::register_relation): Ditto.
4648         (class fur_edge): Ditto.
4649         (fur_edge::fur_edge): Ditto.
4650         (fur_edge::get_operand): Ditto.
4651         (fur_edge::get_phi_operand): Ditto.
4652         (fur_stmt::fur_stmt): Ditto.
4653         (fur_stmt::get_operand): Ditto.
4654         (fur_stmt::get_phi_operand): Ditto.
4655         (fur_stmt::query_relation): Ditto.
4656         (class fur_depend): Relocate to gimple-range-fold.h.
4657         (fur_depend::fur_depend): Relocate to gimple-range-fold.cc.
4658         (fur_depend::register_relation): Ditto.
4659         (fur_depend::register_relation): Ditto.
4660         (class fur_list): Ditto.
4661         (fur_list::fur_list): Ditto.
4662         (fur_list::get_operand): Ditto.
4663         (fur_list::get_phi_operand): Ditto.
4664         (fold_range): Ditto.
4665         (adjust_pointer_diff_expr): Ditto.
4666         (gimple_range_adjustment): Ditto.
4667         (gimple_range_base_of_assignment): Ditto.
4668         (gimple_range_operand1): Ditto.
4669         (gimple_range_operand2): Ditto.
4670         (gimple_range_calc_op1): Relocate to gimple-range-gori.cc.
4671         (gimple_range_calc_op2): Ditto.
4672         (fold_using_range::fold_stmt): Relocate to gimple-range-fold.cc.
4673         (fold_using_range::range_of_range_op): Ditto.
4674         (fold_using_range::range_of_address): Ditto.
4675         (fold_using_range::range_of_phi): Ditto.
4676         (fold_using_range::range_of_call): Ditto.
4677         (fold_using_range::range_of_builtin_ubsan_call): Ditto.
4678         (fold_using_range::range_of_builtin_call): Ditto.
4679         (fold_using_range::range_of_cond_expr): Ditto.
4680         (fold_using_range::range_of_ssa_name_with_loop_info): Ditto.
4681         (fold_using_range::relation_fold_and_or): Ditto.
4682         (fold_using_range::postfold_gcond_edges): Ditto.
4683         * gimple-range.h: Add gimple-range-fold.h to include files. Change
4684         GIMPLE_RANGE_STMT_H to GIMPLE_RANGE_H.
4685         (gimple_range_handler): Relocate to gimple-range-fold.h.
4686         (gimple_range_ssa_p): Ditto.
4687         (range_compatible_p): Ditto.
4688         (class fur_source): Ditto.
4689         (class fur_stmt): Ditto.
4690         (class fold_using_range): Ditto.
4691         (gimple_range_calc_op1): Relocate to gimple-range-gori.h
4692         (gimple_range_calc_op2): Ditto.
4693
4694 2021-06-23  Andrew MacLeod  <amacleod@redhat.com>
4695
4696         PR tree-optimization/101148
4697         PR tree-optimization/101014
4698         * gimple-range-cache.cc (ranger_cache::ranger_cache): Adjust.
4699         (ranger_cache::~ranger_cache): Adjust.
4700         (ranger_cache::block_range): Check if propagation disallowed.
4701         (ranger_cache::propagate_cache): Disallow propagation if new value
4702         can't be stored properly.
4703         * gimple-range-cache.h (ranger_cache::m_propfail): New member.
4704
4705 2021-06-23  Andrew MacLeod  <amacleod@redhat.com>
4706
4707         * gimple-range-cache.cc (class ssa_block_ranges): Adjust prototype.
4708         (sbr_vector::set_bb_range): Return true.
4709         (class sbr_sparse_bitmap): Adjust.
4710         (sbr_sparse_bitmap::set_bb_range): Return value.
4711         (block_range_cache::set_bb_range): Return value.
4712         (ranger_cache::propagate_cache): Use return value to print msg.
4713         * gimple-range-cache.h (class block_range_cache): Adjust.
4714
4715 2021-06-23  Andrew MacLeod  <amacleod@redhat.com>
4716
4717         * gimple-range.cc (dump_bb): Use range_on_edge from the cache.
4718
4719 2021-06-23  Jeff Law  <jeffreyalaw@gmail.com>
4720
4721         * config/h8300/logical.md (<code><mode>3<ccnz>): Use <cczn>
4722         so this pattern can be used for test/compare removal.  Pass
4723         current insn to compute_logical_op_length and output_logical_op.
4724         * config/h8300/h8300.c (compute_logical_op_cc): Remove.
4725         (h8300_and_costs): Add argument to compute_logical_op_length.
4726         (output_logical_op): Add new argument.  Use it to determine if the
4727         condition codes are used and adjust the output accordingly.
4728         (compute_logical_op_length): Add new argument and update length
4729         computations when condition codes are used.
4730         * config/h8300/h8300-protos.h (compute_logical_op_length): Update
4731         prototype.
4732         (output_logical_op): Likewise.
4733
4734 2021-06-23  Uroš Bizjak  <ubizjak@gmail.com>
4735
4736         PR target/89021
4737         * config/i386/i386-expand.c (expand_vec_perm_pshufb):
4738         Handle 64bit modes for TARGET_XOP.  Use indirect gen_* functions.
4739         * config/i386/mmx.md (mmx_ppermv64): New insn pattern.
4740         * config/i386/i386.md (unspec): Move UNSPEC_XOP_PERMUTE from ...
4741         * config/i386/sse.md (unspec): ... here.
4742
4743 2021-06-23  Martin Liska  <mliska@suse.cz>
4744
4745         PR target/98636
4746         * optc-save-gen.awk: Put back arm_fp16_format to
4747         checked_options.
4748
4749 2021-06-23  Uroš Bizjak  <ubizjak@gmail.com>
4750
4751         PR target/101175
4752         * config/i386/i386.md (bsr_rex64): Add zero-flag setting RTX.
4753         (bsr): Ditto.
4754         (*bsrhi): Remove.
4755         (clz<mode>2): Update RTX pattern for additions.
4756
4757 2021-06-23  Jakub Jelinek  <jakub@redhat.com>
4758
4759         PR middle-end/101167
4760         * omp-low.c (lower_omp_regimplify_p): Regimplify also PARM_DECLs
4761         and RESULT_DECLs that have DECL_HAS_VALUE_EXPR_P set.
4762
4763 2021-06-22  Sergei Trofimovich  <siarheit@google.com>
4764
4765         * doc/rtl.texi: drop unbalanced parenthesis.
4766
4767 2021-06-22  Richard Biener  <rguenther@suse.de>
4768
4769         PR middle-end/101156
4770         * gimplify.c (gimplify_expr): Remove premature incorrect
4771         optimization.
4772
4773 2021-06-22  Jakub Jelinek  <jakub@redhat.com>
4774
4775         PR tree-optimization/101159
4776         * tree-vect-patterns.c (vect_recog_popcount_pattern): Fix some
4777         comment typos.
4778
4779 2021-06-22  Jakub Jelinek  <jakub@redhat.com>
4780
4781         PR middle-end/101160
4782         * function.c (assign_parms): For decl_result with TYPE_EMPTY_P type
4783         clear crtl->return_rtx instead of keeping it referencing a pseudo.
4784
4785 2021-06-22  Jakub Jelinek  <jakub@redhat.com>
4786             Andrew Pinski  <apinski@marvell.com>
4787
4788         PR tree-optimization/101162
4789         * fold-const.c (range_check_type): Handle OFFSET_TYPE like pointer
4790         types.
4791
4792 2021-06-22  Andrew MacLeod  <amacleod@redhat.com>
4793
4794         * range-op.cc (range_relational_tests): New.
4795         (range_op_tests): Call range_relational_tests.
4796
4797 2021-06-22  Andrew MacLeod  <amacleod@redhat.com>
4798
4799         * range-op.cc (operator_cast::lhs_op1_relation): New.
4800         (operator_identity::lhs_op1_relation): Mew.
4801
4802 2021-06-22  Andrew MacLeod  <amacleod@redhat.com>
4803
4804         * range-op.cc (operator_minus::op1_op2_relation_effect): New.
4805
4806 2021-06-22  Andrew MacLeod  <amacleod@redhat.com>
4807
4808         * range-op.cc (operator_plus::lhs_op1_relation): New.
4809         (operator_plus::lhs_op2_relation): New.
4810
4811 2021-06-22  Andrew MacLeod  <amacleod@redhat.com>
4812
4813         * gimple-range-cache.cc (ranger_cache::ranger_cache): Create a
4814         relation_oracle if dominators exist.
4815         (ranger_cache::~ranger_cache): Dispose of oracle.
4816         (ranger_cache::dump_bb): Dump oracle.
4817         * gimple-range.cc (fur_source::fur_source): New.
4818         (fur_source::get_operand): Use mmeber query.
4819         (fur_source::get_phi_operand): Use member_query.
4820         (fur_source::query_relation): New.
4821         (fur_source::register_dependency): Delete.
4822         (fur_source::register_relation): New.
4823         (fur_edge::fur_edge): Adjust.
4824         (fur_edge::get_phi_operand): Fix comment.
4825         (fur_edge::query): Delete.
4826         (fur_stmt::fur_stmt): Adjust.
4827         (fur_stmt::query): Delete.
4828         (fur_depend::fur_depend): Adjust.
4829         (fur_depend::register_relation): New.
4830         (fur_depend::register_relation): New.
4831         (fur_list::fur_list): Adjust.
4832         (fur_list::get_operand): Use member query.
4833         (fold_using_range::range_of_range_op): Process and query relations.
4834         (fold_using_range::range_of_address): Adjust dependency call.
4835         (fold_using_range::range_of_phi): Ditto.
4836         (gimple_ranger::gimple_ranger): New.  Use ranger_ache oracle.
4837         (fold_using_range::relation_fold_and_or): New.
4838         (fold_using_range::postfold_gcond_edges): New.
4839         * gimple-range.h (class gimple_ranger): Adjust.
4840         (class fur_source): Adjust members.
4841         (class fur_stmt): Ditto.
4842         (class fold_using_range): Ditto.
4843
4844 2021-06-22  Andrew MacLeod  <amacleod@redhat.com>
4845
4846         * range-op.cc (range_operator::wi_fold): Apply relation effect.
4847         (range_operator::fold_range): Adjust and apply relation effect.
4848         (*::fold_range): Add relation parameters.
4849         (*::op1_range): Ditto.
4850         (*::op2_range): Ditto.
4851         (range_operator::lhs_op1_relation): New.
4852         (range_operator::lhs_op2_relation): New.
4853         (range_operator::op1_op2_relation): New.
4854         (range_operator::op1_op2_relation_effect): New.
4855         (relop_early_resolve): New.
4856         (operator_equal::op1_op2_relation): New.
4857         (operator_equal::fold_range): Call relop_early_resolve.
4858         (operator_not_equal::op1_op2_relation): New.
4859         (operator_not_equal::fold_range): Call relop_early_resolve.
4860         (operator_lt::op1_op2_relation): New.
4861         (operator_lt::fold_range): Call relop_early_resolve.
4862         (operator_le::op1_op2_relation): New.
4863         (operator_le::fold_range): Call relop_early_resolve.
4864         (operator_gt::op1_op2_relation): New.
4865         (operator_gt::fold_range): Call relop_early_resolve.
4866         (operator_ge::op1_op2_relation): New.
4867         (operator_ge::fold_range): Call relop_early_resolve.
4868         * range-op.h (class range_operator): Adjust parameters and methods.
4869
4870 2021-06-22  Andrew MacLeod  <amacleod@redhat.com>
4871
4872         * Makefile.in (OBJS): Add value-relation.o.
4873         * gimple-range.h: Adjust include files.
4874         * tree-data-ref.c: Adjust include file order.
4875         * value-query.cc (range_query::get_value_range): Default to no oracle.
4876         (range_query::query_relation): New.
4877         (range_query::query_relation): New.
4878         * value-query.h (class range_query): Adjust.
4879         * value-relation.cc: New.
4880         * value-relation.h: New.
4881
4882 2021-06-22  Richard Biener  <rguenther@suse.de>
4883
4884         PR tree-optimization/101151
4885         * tree-ssa-sink.c (statement_sink_location): Expand irreducible
4886         region check.
4887
4888 2021-06-22  Jojo R  <rjiejie@linux.alibaba.com>
4889
4890         * config/riscv/riscv.c (thead_c906_tune_info): New.
4891         (riscv_tune_info_table): Use new tune.
4892
4893 2021-06-22  Richard Biener  <rguenther@suse.de>
4894
4895         PR tree-optimization/101158
4896         * tree-vect-slp.c (vect_build_slp_tree_1): Move same operand
4897         checking after checking for matching operation.
4898
4899 2021-06-22  Richard Biener  <rguenther@suse.de>
4900
4901         PR tree-optimization/101159
4902         * tree-vect-patterns.c (vect_recog_popcount_pattern): Add
4903         missing NULL vectype check.
4904
4905 2021-06-22  Richard Biener  <rguenther@suse.de>
4906
4907         PR tree-optimization/101154
4908         * tree-vect-slp.c (vect_build_slp_tree_2): Fix out-of-bound access.
4909
4910 2021-06-22  Jakub Jelinek  <jakub@redhat.com>
4911
4912         PR target/11877
4913         * config/i386/i386-protos.h (ix86_last_zero_store_uid): Declare.
4914         * config/i386/i386-expand.c (ix86_last_zero_store_uid): New variable.
4915         * config/i386/i386.c (ix86_expand_prologue): Clear it.
4916         * config/i386/i386.md (peephole2s for 1/2/4 stores of const0_rtx):
4917         Remove "" from match_operand.  Emit new insns using emit_move_insn and
4918         set ix86_last_zero_store_uid to INSN_UID of the last store.
4919         Add peephole2s for 1/2/4 stores of const0_rtx following previous
4920         successful peep2s.
4921
4922 2021-06-22  Martin Liska  <mliska@suse.cz>
4923
4924         * auto-profile.c (AUTO_PROFILE_VERSION): Bump as string format
4925         was changed.
4926
4927 2021-06-22  Martin Liska  <mliska@suse.cz>
4928
4929         * gcov-io.h: Remove padding entries.
4930
4931 2021-06-22  liuhongt  <hongtao.liu@intel.com>
4932
4933         PR tree-optimization/97770
4934         * tree-vect-patterns.c (vect_recog_popcount_pattern):
4935         New.
4936         (vect_recog_func vect_vect_recog_func_ptrs): Add new pattern.
4937
4938 2021-06-22  liuhongt  <hongtao.liu@intel.com>
4939
4940         PR target/100267
4941         * config/i386/i386-builtin.def (BDESC): Adjust builtin name.
4942         * config/i386/sse.md (<avx512>_expand<mode>_mask): Rename to ..
4943         (expand<mode>_mask): this ..
4944         (*expand<mode>_mask): New pre_reload splitter to transform
4945         v{,p}expand* to vmov* when mask is zero, all ones, or has all
4946         ones in it's lower part, otherwise still generate
4947         v{,p}expand*.
4948
4949 2021-06-22  liuhongt  <hongtao.liu@intel.com>
4950
4951         PR target/100310
4952         * config/i386/i386-expand.c
4953         (ix86_expand_special_args_builtin): Keep constm1_operand only
4954         if it satisfies insn's operand predicate.
4955
4956 2021-06-21  Jason Merrill  <jason@redhat.com>
4957
4958         PR target/88529
4959         * df-scan.c (df_ref_record): Check that regno < endregno.
4960         * function.c (assign_parms, expand_function_end): Do nothing with a
4961         TYPE_EMPTY_P result.
4962
4963 2021-06-21  Richard Biener  <rguenther@suse.de>
4964
4965         PR tree-optimization/101120
4966         * tree-vect-data-refs.c (bump_vector_ptr): Fold the
4967         built increment.
4968         * tree-vect-slp.c (vect_transform_slp_perm_load): Add
4969         DR chain DCE capability.
4970         * tree-vectorizer.h (vect_transform_slp_perm_load): Adjust.
4971         * tree-vect-stmts.c (vectorizable_load): Remove unused
4972         loads in the DR chain for SLP.
4973
4974 2021-06-21  Jakub Jelinek  <jakub@redhat.com>
4975
4976         PR inline-asm/100785
4977         * gimplify.c (gimplify_asm_expr): Don't diagnose errors if
4978         output or input operands were already error_mark_node.
4979         * cfgexpand.c (expand_asm_stmt): If errors are emitted,
4980         remove all inputs, outputs and clobbers from the asm and
4981         set template to "".
4982
4983 2021-06-21  prathamesh.kulkarni  <prathamesh.kulkarni@linaro.org>
4984
4985         * config/arm/arm_neon.h (vceq_s8): Replace builtin with __a == __b.
4986         (vceq_s16): Likewise.
4987         (vceq_s32): Likewise.
4988         (vceq_u8): Likewise.
4989         (vceq_u16): Likewise.
4990         (vceq_u32): Likewise.
4991         (vceq_p8): Likewise.
4992         (vceqq_s8): Likewise.
4993         (vceqq_s16): Likewise.
4994         (vceqq_s32): Likewise.
4995         (vceqq_u8): Likewise.
4996         (vceqq_u16): Likewise.
4997         (vceqq_u32): Likewise.
4998         (vceqq_p8): Likewise.
4999         (vceq_f32): Gate __a == __b on __FAST_MATH__.
5000         (vceqq_f32): Likewise.
5001         (vceq_f16): Likewise.
5002         (vceqq_f16): Likewise.
5003
5004 2021-06-21  prathamesh.kulkarni  <prathamesh.kulkarni@linaro.org>
5005
5006         PR target/97906
5007         * config/arm/iterators.md (NEON_VACMP): Remove.
5008         * config/arm/neon.md (neon_vca<cmp_op><mode>): Use GLTE instead of GTGE
5009         iterator.
5010         (neon_vca<cmp_op><mode>_insn): Likewise.
5011         (neon_vca<cmp_op_unsp><mode>_insn_unspec): Use NEON_VAGLTE instead of
5012         NEON_VACMP.
5013
5014 2021-06-21  Richard Biener  <rguenther@suse.de>
5015
5016         PR tree-optimization/101121
5017         * tree-vect-slp.c (vect_build_slp_tree_2): To not fail fatally
5018         when we just lack a stmt with the desired op when doing permutation.
5019         (vect_build_slp_tree): When caching a failed SLP build attempt
5020         assert that at least one lane is marked as not matching.
5021
5022 2021-06-21  liuhongt  <hongtao.liu@intel.com>
5023
5024         PR target/101142
5025         * config/i386/i386.md: (*anddi_1): Disparage slightly the mask
5026         register alternative.
5027         (*and<mode>_1): Ditto.
5028         (*andqi_1): Ditto.
5029         (*andn<mode>_1): Ditto.
5030         (*<code><mode>_1): Ditto.
5031         (*<code>qi_1): Ditto.
5032         (*one_cmpl<mode>2_1): Ditto.
5033         (*one_cmplsi2_1_zext): Ditto.
5034         (*one_cmplqi2_1): Ditto.
5035         * config/i386/i386.c (x86_order_regs_for_local_alloc): Change
5036         the order of mask registers to be before general registers.
5037
5038 2021-06-21  Roger Sayle  <roger@nextmovesoftware.com>
5039
5040         PR target/11877
5041         * config/i386/i386.md: New define_peephole2s to shrink writing
5042         1, 2 or 4 consecutive zeros to memory when optimizing for size.
5043
5044 2021-06-18  Jeff Law  <jeffreyalaw@gmail.com>
5045
5046         * config/h8300/h8300.c (h8300_select_cc_mode): Handle SYMBOL_REF.
5047         * config/h8300/logical.md (<code><mode>3 logcial expander): Generate
5048         more efficient code when the source can be trivially simplified.
5049
5050 2021-06-18  Andrew MacLeod  <amacleod@redhat.com>
5051
5052         * gimple-range-cache.cc (ranger_cache::range_of_def):  Calculate
5053         a range if global is not available.
5054         (ranger_cache::entry_range): Fallback to range_of_def.
5055         * gimple-range-cache.h (range_of_def): Adjust prototype.
5056
5057 2021-06-18  Andrew MacLeod  <amacleod@redhat.com>
5058
5059         PR tree-optimization/101014
5060         * gimple-range-cache.cc (ranger_cache::ranger_cache): Remove poor
5061         value list.
5062         (ranger_cache::~ranger_cache): Ditto.
5063         (ranger_cache::enable_new_values): Delete.
5064         (ranger_cache::push_poor_value): Delete.
5065         (ranger_cache::range_of_def): Remove poor value processing.
5066         (ranger_cache::entry_range): Ditto.
5067         (ranger_cache::fill_block_cache): Ditto.
5068         * gimple-range-cache.h (class ranger_cache): Remove poor value members.
5069         * gimple-range.cc (gimple_ranger::range_of_expr): Remove call.
5070         * gimple-range.h (class gimple_ranger): Adjust.
5071
5072 2021-06-18  Srinath Parvathaneni  <srinath.parvathaneni@arm.com>
5073
5074         PR target/100856
5075         * common/config/arm/arm-common.c (arm_canon_arch_option_1): New function
5076         derived from arm_canon_arch.
5077         (arm_canon_arch_option): Call it.
5078         (arm_canon_arch_multilib_option): New function.
5079         * config/arm/arm-cpus.in (IGNORE_FOR_MULTILIB): New fgroup.
5080         * config/arm/arm.h (arm_canon_arch_multilib_option): New prototype.
5081         (CANON_ARCH_MULTILIB_SPEC_FUNCTION): New macro.
5082         (MULTILIB_ARCH_CANONICAL_SPECS): New macro.
5083         (DRIVER_SELF_SPECS): Add MULTILIB_ARCH_CANONICAL_SPECS.
5084         * config/arm/arm.opt (mlibarch): New option.
5085         * config/arm/t-rmprofile (MULTILIB_MATCHES): For armv8*-m, replace use
5086         of march on RHS with mlibarch.
5087
5088 2021-06-18  Marcel Vollweiler  <marcel@codesourcery.com>
5089
5090         * config.in: Regenerate.
5091         * config/gcn/gcn.c (print_operand_address): Fix for global_load assembler
5092         functions.
5093         * configure: Regenerate.
5094         * configure.ac: Fix for global_load assembler functions.
5095
5096 2021-06-18  Richard Biener  <rguenther@suse.de>
5097
5098         PR tree-optimization/101112
5099         * tree-vect-slp.c (vect_slp_linearize_chain): Fix condition
5100         to lookup a pattern stmt def.
5101
5102 2021-06-18  Jakub Jelinek  <jakub@redhat.com>
5103
5104         PR middle-end/101062
5105         * stor-layout.c (finish_bitfield_layout): Don't add bitfield
5106         representatives in QUAL_UNION_TYPE.
5107
5108 2021-06-18  Andrew Pinski  <apinski@marvell.com>
5109
5110         * tree-ssa-phiopt.c (replace_phi_edge_with_variable):
5111         Add counting of how many times it is done.
5112         (factor_out_conditional_conversion): Likewise.
5113         (match_simplify_replacement): Likewise.
5114         (value_replacement): Likewise.
5115         (spaceship_replacement): Likewise.
5116         (cond_store_replacement): Likewise.
5117         (cond_if_else_store_replacement_1): Likewise.
5118         (hoist_adjacent_loads): Likewise.
5119
5120 2021-06-18  Andrew Pinski  <apinski@marvell.com>
5121
5122         * tree-cfg.c (verify_gimple_assign_unary): Reject point and offset
5123         types on NEGATE_EXPR, ABS_EXPR, BIT_NOT_EXPR, PAREN_EXPR and CNONJ_EXPR.
5124         (verify_gimple_assign_binary): Reject point and offset types on
5125         MULT_EXPR, MULT_HIGHPART_EXPR, TRUNC_DIV_EXPR, CEIL_DIV_EXPR,
5126         FLOOR_DIV_EXPR, ROUND_DIV_EXPR, TRUNC_MOD_EXPR, CEIL_MOD_EXPR,
5127         FLOOR_MOD_EXPR, ROUND_MOD_EXPR, RDIV_EXPR, and EXACT_DIV_EXPR.
5128
5129 2021-06-18  Michael Meissner  <meissner@linux.ibm.com>
5130
5131         * config/rs6000/rs6000.c (rs6000_emit_minmax): Add support for ISA
5132         3.1 IEEE 128-bit floating point xsmaxcqp/xsmincqp instructions.
5133         * config/rs6000/rs6000.md (s<minmax><mode>3, IEEE128 iterator):
5134         New insns.
5135
5136 2021-06-17  Aaron Sawdey  <acsawdey@linux.ibm.com>
5137
5138         * config/rs6000/genfusion.pl (gen_logical_addsubf): Add
5139         earlyclobber to alts 0/1.
5140         (gen_addadd): Add earlyclobber to alts 0/1.
5141         * config/rs6000/fusion.md: Regenerate file.
5142
5143 2021-06-17  Trevor Saunders  <tbsaunde@tbsaunde.org>
5144
5145         * cfgloopanal.c (get_loop_hot_path): Make path an auto_vec.
5146
5147 2021-06-17  Andrew MacLeod  <amacleod@redhat.com>
5148
5149         * gimple-range-cache.cc: Comment cleanups.
5150         * gimple-range-gori.cc: Comment cleanups.
5151         * gimple-range.cc: Comment/spacing cleanups
5152         * value-range.h: Comment cleanups.
5153
5154 2021-06-17  H.J. Lu  <hjl.tools@gmail.com>
5155
5156         PR target/100704
5157         * calls.c (expand_call): Replace PUSH_ARGS with
5158         targetm.calls.push_argument (0).
5159         (emit_library_call_value_1): Likewise.
5160         * defaults.h (PUSH_ARGS): Removed.
5161         (PUSH_ARGS_REVERSED): Replace PUSH_ARGS with
5162         targetm.calls.push_argument (0).
5163         * expr.c (block_move_libcall_safe_for_call_parm): Likewise.
5164         (emit_push_insn): Pass the number bytes to push to
5165         targetm.calls.push_argument and pass 0 if ARGS_ADDR is 0.
5166         * hooks.c (hook_bool_uint_true): New.
5167         * hooks.h (hook_bool_uint_true): Likewise.
5168         * rtlanal.c (nonzero_bits1): Replace PUSH_ARGS with
5169         targetm.calls.push_argument (0).
5170         * target.def (push_argument): Add a targetm.calls hook.
5171         * targhooks.c (default_push_argument): New.
5172         * targhooks.h (default_push_argument): Likewise.
5173         * config/bpf/bpf.h (PUSH_ARGS): Removed.
5174         * config/cr16/cr16.c (TARGET_PUSH_ARGUMENT): New.
5175         * config/cr16/cr16.h (PUSH_ARGS): Removed.
5176         * config/i386/i386.c (ix86_push_argument): New.
5177         (TARGET_PUSH_ARGUMENT): Likewise.
5178         * config/i386/i386.h (PUSH_ARGS): Removed.
5179         * config/m32c/m32c.c (TARGET_PUSH_ARGUMENT): New.
5180         * config/m32c/m32c.h (PUSH_ARGS): Removed.
5181         * config/nios2/nios2.h (PUSH_ARGS): Likewise.
5182         * config/pru/pru.h (PUSH_ARGS): Likewise.
5183         * doc/tm.texi.in: Remove PUSH_ARGS documentation.  Add
5184         TARGET_PUSH_ARGUMENT hook.
5185         * doc/tm.texi: Regenerated.
5186
5187 2021-06-17  Uroš Bizjak  <ubizjak@gmail.com>
5188
5189         PR target/97194
5190         * config/i386/i386-expand.c (expand_vector_set_var):
5191         Handle V2FS mode remapping.  Pass TARGET_MMX_WITH_SSE to
5192         ix86_expand_vector_init_duplicate.
5193         (ix86_expand_vector_init_duplicate): Emit insv_1 for
5194         QImode for !TARGET_PARTIAL_REG_STALL.
5195         * config/i386/predicates.md (vec_setm_mmx_operand): New predicate.
5196         * config/i386/mmx.md (vec_setv2sf): Use vec_setm_mmx_operand
5197         as operand 2 predicate.  Call ix86_expand_vector_set_var
5198         for non-constant index operand.
5199         (vec_setv2si): Ditto.
5200         (vec_setv4hi): Ditto.
5201         (vec_setv8qi): ditto.
5202
5203 2021-06-17  Aldy Hernandez  <aldyh@redhat.com>
5204
5205         PR tree-optimization/100790
5206         * gimple-range.cc (range_of_builtin_call): Cleanup clz and ctz
5207         code.
5208
5209 2021-06-17  Martin Liska  <mliska@suse.cz>
5210
5211         * doc/invoke.texi: Use consistently -O1 instead of -O.
5212
5213 2021-06-17  Martin Liska  <mliska@suse.cz>
5214
5215         * gcov-io.h: Update documentation entry about string format.
5216
5217 2021-06-17  Marius Hillenbrand  <mhillen@linux.ibm.com>
5218
5219         PR target/100871
5220         * config/s390/vecintrin.h (vec_doublee): Fix to use
5221           __builtin_s390_vflls.
5222         (vec_floate): Fix to use __builtin_s390_vflrd.
5223
5224 2021-06-17  Trevor Saunders  <tbsaunde@tbsaunde.org>
5225
5226         * dominance.c (get_dominated_to_depth): Return auto_vec<basic_block>.
5227         * dominance.h (get_dominated_to_depth): Likewise.
5228         (get_all_dominated_blocks): Likewise.
5229         * cfgcleanup.c (delete_unreachable_blocks): Adjust.
5230         * gcse.c (hoist_code): Likewise.
5231         * tree-cfg.c (remove_edge_and_dominated_blocks): Likewise.
5232         * tree-parloops.c (oacc_entry_exit_ok): Likewise.
5233         * tree-ssa-dce.c (eliminate_unnecessary_stmts): Likewise.
5234         * tree-ssa-phiprop.c (pass_phiprop::execute): Likewise.
5235
5236 2021-06-17  Trevor Saunders  <tbsaunde@tbsaunde.org>
5237
5238         * dominance.c (get_dominated_by_region): Return auto_vec<basic_block>.
5239         * dominance.h (get_dominated_by_region): Likewise.
5240         * tree-cfg.c (gimple_duplicate_sese_region): Adjust.
5241         (gimple_duplicate_sese_tail): Likewise.
5242         (move_sese_region_to_fn): Likewise.
5243
5244 2021-06-17  Trevor Saunders  <tbsaunde@tbsaunde.org>
5245
5246         * dominance.c (get_dominated_by): Return auto_vec<basic_block>.
5247         * dominance.h (get_dominated_by): Likewise.
5248         * auto-profile.c (afdo_find_equiv_class): Adjust.
5249         * cfgloopmanip.c (duplicate_loop_to_header_edge): Likewise.
5250         * loop-unroll.c (unroll_loop_runtime_iterations): Likewise.
5251         * tree-cfg.c (test_linear_chain): Likewise.
5252         (test_diamond): Likewise.
5253
5254 2021-06-17  Trevor Saunders  <tbsaunde@tbsaunde.org>
5255
5256         * cfgloop.h (get_loop_hot_path): Return auto_vec<basic_block>.
5257         * cfgloopanal.c (get_loop_hot_path): Likewise.
5258         * tree-ssa-loop-ivcanon.c (tree_estimate_loop_size): Likewise.
5259
5260 2021-06-17  Trevor Saunders  <tbsaunde@tbsaunde.org>
5261
5262         * cgraph.c (cgraph_node::collect_callers): Return
5263         auto_vec<cgraph_edge *>.
5264         * cgraph.h (cgraph_node::collect_callers): Likewise.
5265         * ipa-cp.c (create_specialized_node): Adjust.
5266         (decide_about_value): Likewise.
5267         (decide_whether_version_node): Likewise.
5268         * ipa-sra.c (process_isra_node_results): Likewise.
5269
5270 2021-06-17  Trevor Saunders  <tbsaunde@tbsaunde.org>
5271
5272         * vec.h (vl_ptr>::using_auto_storage): Handle null m_vec.
5273         (auto_vec<T, 0>::auto_vec): Define move constructor, and delete copy
5274         constructor.
5275         (auto_vec<T, 0>::operator=): Define move assignment and delete copy
5276         assignment.
5277
5278 2021-06-17  Aldy Hernandez  <aldyh@redhat.com>
5279
5280         * gimple-range.cc (debug_seed_ranger): New.
5281         (dump_ranger): New.
5282         (debug_ranger): New.
5283
5284 2021-06-17  Richard Biener   <rguenther@suse.de>
5285
5286         PR tree-optimization/54400
5287         * tree-vectorizer.h (enum slp_instance_kind): Add
5288         slp_inst_kind_bb_reduc.
5289         (reduction_fn_for_scalar_code): Declare.
5290         * tree-vect-data-refs.c (vect_slp_analyze_instance_dependence):
5291         Check SLP_INSTANCE_KIND instead of looking at the
5292         representative.
5293         (vect_slp_analyze_instance_alignment): Likewise.
5294         * tree-vect-loop.c (reduction_fn_for_scalar_code): Export.
5295         * tree-vect-slp.c (vect_slp_linearize_chain): Split out
5296         chain linearization from vect_build_slp_tree_2 and generalize
5297         for the use of BB reduction vectorization.
5298         (vect_build_slp_tree_2): Adjust accordingly.
5299         (vect_optimize_slp): Elide permutes at the root of BB reduction
5300         instances.
5301         (vectorizable_bb_reduc_epilogue): New function.
5302         (vect_slp_prune_covered_roots): Likewise.
5303         (vect_slp_analyze_operations): Use them.
5304         (vect_slp_check_for_constructors): Recognize associatable
5305         chains for BB reduction vectorization.
5306         (vectorize_slp_instance_root_stmt): Generate code for the
5307         BB reduction epilogue.
5308
5309 2021-06-17  Andrew MacLeod  <amacleod@redhat.com>
5310
5311         * gimple-range-gori.cc (gori_compute::has_edge_range_p): Check with
5312         may_recompute_p.
5313         (gori_compute::may_recompute_p): New.
5314         (gori_compute::outgoing_edge_range_p): Perform recomputations.
5315         * gimple-range-gori.h (class gori_compute): Add prototype.
5316
5317 2021-06-17  Andrew MacLeod  <amacleod@redhat.com>
5318
5319         * gimple-range-cache.cc (ranger_cache::range_on_edge): Always return
5320         true when a range can be calculated.
5321         * gimple-range.cc (gimple_ranger::dump_bb): Check has_edge_range_p.
5322
5323 2021-06-16  Martin Sebor  <msebor@redhat.com>
5324
5325         * doc/invoke.texi (-Wmismatched-dealloc, -Wmismatched-new-delete):
5326         Correct documented defaults.
5327
5328 2021-06-16  Andrew MacLeod  <amacleod@redhat.com>
5329
5330         * gimple-range-cache.cc (ranger_cache::ranger_cache): Initialize
5331         m_new_value_p directly.
5332
5333 2021-06-16  Uroš Bizjak  <ubizjak@gmail.com>
5334
5335         PR target/89021
5336         * config/i386/i386-expand.c (expand_vec_perm_2perm_pblendv):
5337         Handle 64bit modes for TARGET_SSE4_1.
5338         (expand_vec_perm_pshufb2): Handle 64bit modes for TARGET_SSSE3.
5339         (expand_vec_perm_even_odd_pack): Handle V4HI mode.
5340         (expand_vec_perm_even_odd_1) <case E_V4HImode>: Expand via
5341         expand_vec_perm_pshufb2 for TARGET_SSSE3 and via
5342         expand_vec_perm_even_odd_pack for TARGET_SSE4_1.
5343         * config/i386/mmx.md (mmx_packusdw): New insn pattern.
5344
5345 2021-06-16  Jonathan Wright  <jonathan.wright@arm.com>
5346
5347         * config/aarch64/aarch64-simd.md (aarch64_<sur><addsub>hn<mode>):
5348         Change to an expander that emits the correct instruction
5349         depending on endianness.
5350         (aarch64_<sur><addsub>hn<mode>_insn_le): Define.
5351         (aarch64_<sur><addsub>hn<mode>_insn_be): Define.
5352
5353 2021-06-16  Jonathan Wright  <jonathan.wright@arm.com>
5354
5355         * config/aarch64/aarch64-simd-builtins.def: Split generator
5356         for aarch64_<su>qmovn builtins into scalar and vector
5357         variants.
5358         * config/aarch64/aarch64-simd.md (aarch64_<su>qmovn<mode>_insn_le):
5359         Define.
5360         (aarch64_<su>qmovn<mode>_insn_be): Define.
5361         (aarch64_<su>qmovn<mode>): Split into scalar and vector
5362         variants. Change vector variant to an expander that emits the
5363         correct instruction depending on endianness.
5364
5365 2021-06-16  Jonathan Wright  <jonathan.wright@arm.com>
5366
5367         * config/aarch64/aarch64-simd-builtins.def: Split generator
5368         for aarch64_sqmovun builtins into scalar and vector variants.
5369         * config/aarch64/aarch64-simd.md (aarch64_sqmovun<mode>):
5370         Split into scalar and vector variants. Change vector variant
5371         to an expander that emits the correct instruction depending
5372         on endianness.
5373         (aarch64_sqmovun<mode>_insn_le): Define.
5374         (aarch64_sqmovun<mode>_insn_be): Define.
5375
5376 2021-06-16  Jonathan Wright  <jonathan.wright@arm.com>
5377
5378         * config/aarch64/aarch64-simd.md (aarch64_xtn<mode>_insn_le):
5379         Define - modeling zero-high-half semantics.
5380         (aarch64_xtn<mode>): Change to an expander that emits the
5381         appropriate instruction depending on endianness.
5382         (aarch64_xtn<mode>_insn_be): Define - modeling zero-high-half
5383         semantics.
5384         (aarch64_xtn2<mode>_le): Rename to...
5385         (aarch64_xtn2<mode>_insn_le): This.
5386         (aarch64_xtn2<mode>_be): Rename to...
5387         (aarch64_xtn2<mode>_insn_be): This.
5388         (vec_pack_trunc_<mode>): Emit truncation instruction instead
5389         of aarch64_xtn.
5390         * config/aarch64/iterators.md (Vnarrowd): Add Vnarrowd mode
5391         attribute iterator.
5392
5393 2021-06-16  Martin Jambor  <mjambor@suse.cz>
5394
5395         PR tree-optimization/100453
5396         * tree-sra.c (create_access): Disqualify any const candidates
5397         which are written to.
5398         (sra_modify_expr): Do not store sub-replacements back to a const base.
5399         (handle_unscalarized_data_in_subtree): Likewise.
5400         (sra_modify_assign): Likewise.  Earlier, use TREE_READONLy test
5401         instead of constant_decl_p.
5402
5403 2021-06-16  Jakub Jelinek  <jakub@redhat.com>
5404
5405         PR middle-end/101062
5406         * stor-layout.c (finish_bitfield_representative): For fields in unions
5407         assume nextf is always NULL.
5408         (finish_bitfield_layout): Compute bit field representatives also in
5409         unions, but handle it as if each bitfield was the only field in the
5410         aggregate.
5411
5412 2021-06-16  Richard Biener  <rguenther@suse.de>
5413
5414         PR tree-optimization/101088
5415         * tree-ssa-loop-im.c (sm_seq_valid_bb): Only look for
5416         supported refs on edges.  Do not assert same ref but
5417         different kind stores are unsuported but mark them so.
5418         (hoist_memory_references): Only look for supported refs
5419         on exits.
5420
5421 2021-06-16  Roger Sayle  <roger@nextmovesoftware.com>
5422
5423         PR rtl-optimization/46235
5424         * config/i386/i386.md: New define_split for bt followed by cmov.
5425         (*bt<mode>_setcqi): New define_insn_and_split for bt followed by setc.
5426         (*bt<mode>_setncqi): New define_insn_and_split for bt then setnc.
5427         (*bt<mode>_setnc<mode>): New define_insn_and_split for bt followed
5428         by setnc with zero extension.
5429
5430 2021-06-16  Richard Biener  <rguenther@suse.de>
5431
5432         PR tree-optimization/101083
5433         * tree-vect-slp.c (vect_slp_build_two_operator_nodes): Get
5434         vectype as argument.
5435         (vect_build_slp_tree_2): Adjust.
5436
5437 2021-06-15  Martin Sebor  <msebor@redhat.com>
5438
5439         PR middle-end/100876
5440         * builtins.c: (gimple_call_return_array): Account for size_t
5441         mangling as either unsigned int or unsigned long
5442
5443 2021-06-15  Jeff Law  <jeffreyalaw@gmail.com>
5444
5445         * compare-elim.c (try_eliminate_compare): Run DCE to clean things
5446         up before eliminating comparisons.
5447
5448 2021-06-15  Aldy Hernandez  <aldyh@redhat.com>
5449
5450         * range-op.cc (operator_bitwise_or::wi_fold): Make sure
5451         nonzero|X is nonzero.
5452         (range_op_bitwise_and_tests): Add tests for above.
5453
5454 2021-06-15  Carl Love  <cel@us.ibm.com>
5455
5456         PR target/101022
5457         * config/rs6000/rs6000-builtin.def (VCMPEQUT): Fix the ICODE for the
5458         enum definition.
5459         (VRLQ, VSLQ, VSRQ, VSRAQ): Remove unused BU_P10_OVERLOAD_2
5460         definitions.
5461
5462 2021-06-15  Tobias Burnus  <tobias@codesourcery.com>
5463
5464         PR fortran/92568
5465         * gimplify.c (enum gimplify_defaultmap_kind): Add GDMK_SCALAR_TARGET.
5466         (struct gimplify_omp_ctx): Extend defaultmap array by one.
5467         (new_omp_context): Init defaultmap[GDMK_SCALAR_TARGET].
5468         (omp_notice_variable): Update type classification for Fortran.
5469         (gimplify_scan_omp_clauses): Update calls for new argument; handle
5470         GDMK_SCALAR_TARGET; for Fortran, GDMK_POINTER avoid GOVD_MAP_0LEN_ARRAY.
5471         * langhooks-def.h (lhd_omp_scalar_p): Add 'ptr_ok' argument.
5472         * langhooks.c (lhd_omp_scalar_p): Likewise.
5473         (LANG_HOOKS_OMP_ALLOCATABLE_P, LANG_HOOKS_OMP_SCALAR_TARGET_P): New.
5474         (LANG_HOOKS_DECLS): Add them.
5475         * langhooks.h (struct lang_hooks_for_decls): Add new hooks, update
5476         omp_scalar_p pointer type to include the new bool argument.
5477
5478 2021-06-15  David Malcolm  <dmalcolm@redhat.com>
5479
5480         * doc/analyzer.texi
5481         (Special Functions for Debugging the Analyzer): Add
5482         __analyzer_dump_capacity.
5483
5484 2021-06-15  Jakub Jelinek  <jakub@redhat.com>
5485
5486         PR target/101046
5487         * expr.c (expand_expr_real_2) <case VEC_PACK_FIX_TRUNC_EXPR,
5488         case VEC_PACK_TRUNC_EXPR>: Clear subtarget when changing mode.
5489
5490 2021-06-15  Richard Biener  <rguenther@suse.de>
5491
5492         * cfgloopanal.c (mark_irreducible_loops): Use a dominance
5493         check to identify loop latches.
5494         * cfgloop.c (verify_loop_structure): Likewise.
5495         * loop-init.c (apply_loop_flags): Allow marked irreducible
5496         regions even with multiple latches.
5497         * predict.c (rebuild_frequencies): Simplify.
5498
5499 2021-06-15  Richard Biener  <rguenther@suse.de>
5500
5501         * tree-ssa-threadupdate.c
5502         (jump_thread_path_registry::mark_threaded_blocks): Assert we
5503         have marked irreducible regions.
5504
5505 2021-06-14  Martin Sebor  <msebor@redhat.com>
5506
5507         PR c++/100876
5508         * builtins.c (gimple_call_return_array): Check for attribute fn spec.
5509         Handle calls to placement new.
5510         (ndecl_dealloc_argno): Avoid placement delete.
5511
5512 2021-06-14  Peter Bergner  <bergner@linux.ibm.com>
5513
5514         PR target/100777
5515         * config/rs6000/rs6000-call.c (rs6000_gimple_fold_mma_builtin): Use
5516         create_tmp_reg_or_ssa_name().
5517
5518 2021-06-14  Andrew MacLeod  <amacleod@redhat.com>
5519
5520         * gimple-range-cache.cc (ranger_cache::ranger_cache): Adjust.
5521         (ranger_cache::enable_new_values): Set to specified value and
5522         return the old value.
5523         (ranger_cache::disable_new_values): Delete.
5524         (ranger_cache::fill_block_cache): Disable non 1st order derived
5525         poor values.
5526         * gimple-range-cache.h (ranger_cache): Adjust prototypes.
5527         * gimple-range.cc (gimple_ranger::range_of_expr): Adjust.
5528
5529 2021-06-14  Uroš Bizjak  <ubizjak@gmail.com>
5530
5531         PR target/101058
5532         * config/i386/i386-expand.c (ix86_vectorize_vec_perm_const):
5533         Return true early when testing with V2HImode.
5534         * config/i386/mmx.md (*punpckwd): Split to sse2_pshuflw_1.
5535
5536 2021-06-14  Christophe Lyon  <christophe.lyon@linaro.org>
5537
5538         * config/arm/mve.md (mve_vec_unpack<US>_lo_<mode>): New pattern.
5539         (mve_vec_unpack<US>_hi_<mode>): New pattern.
5540         (@mve_vec_pack_trunc_lo_<mode>): New pattern.
5541         (mve_vmovntq_<supf><mode>): Prefix with '@'.
5542         * config/arm/neon.md (vec_unpack<US>_hi_<mode>): Move to
5543         vec-common.md.
5544         (vec_unpack<US>_lo_<mode>): Likewise.
5545         (vec_pack_trunc_<mode>): Rename to
5546         neon_quad_vec_pack_trunc_<mode>.
5547         * config/arm/vec-common.md (vec_unpack<US>_hi_<mode>): New
5548         pattern.
5549         (vec_unpack<US>_lo_<mode>): New.
5550         (vec_pack_trunc_<mode>): New.
5551
5552 2021-06-14  Richard Biener  <rguenther@suse.de>
5553
5554         PR tree-optimization/100934
5555         * tree-ssa-dom.c (pass_dominator::execute): Properly
5556         mark irreducible regions.
5557
5558 2021-06-14  Martin Liska  <mliska@suse.cz>
5559
5560         * doc/invoke.texi: Put r{...} on the same line as @item.
5561
5562 2021-06-14  Martin Liska  <mliska@suse.cz>
5563
5564         * doc/invoke.texi: Add missing newline.
5565
5566 2021-06-14  Martin Liska  <mliska@suse.cz>
5567
5568         * doc/invoke.texi: Remove '+' charasters.
5569
5570 2021-06-14  Claudiu Zissulescu  <claziss@synopsys.com>
5571
5572         * config.gcc (arc): Add support for with_cpu option.
5573         * config/arc/arc.h (OPTION_DEFAULT_SPECS): Add fpu.
5574
5575 2021-06-14  Richard Biener  <rguenther@suse.de>
5576
5577         PR tree-optimization/101031
5578         * tree-ssa-strlen.c (maybe_invalidate): Increment max_size
5579         instead of size when accounting for a possibly string
5580         terminating nul.
5581
5582 2021-06-14  Martin Liska  <mliska@suse.cz>
5583
5584         * gimple-ssa-evrp.c (pointer_equiv_analyzer::~pointer_equiv_analyzer): Use delete[].
5585
5586 2021-06-14  Aldy Hernandez  <aldyh@redhat.com>
5587
5588         * value-query.cc (gimple_range_global): Call get_range_global
5589         if called after inlining.
5590
5591 2021-06-13  Uroš Bizjak  <ubizjak@gmail.com>
5592
5593         PR target/101021
5594         * config/i386/i386-expand.c (expand_vec_perm_pshufb):
5595         Emit constant permutation insn directly from here.
5596
5597 2021-06-13  Trevor Saunders  <tbsaunde@tbsaunde.org>
5598
5599         * attribs.c (find_attribute_namespace): Iterate over vec<> with
5600         range based for.
5601         * auto-profile.c (afdo_find_equiv_class): Likewise.
5602         * gcc.c (do_specs_vec): Likewise.
5603         (do_spec_1): Likewise.
5604         (driver::set_up_specs): Likewise.
5605         * gimple-loop-jam.c (any_access_function_variant_p): Likewise.
5606         * gimple-ssa-store-merging.c (compatible_load_p): Likewise.
5607         (imm_store_chain_info::try_coalesce_bswap): Likewise.
5608         (imm_store_chain_info::coalesce_immediate_stores): Likewise.
5609         (get_location_for_stmts): Likewise.
5610         * graphite-poly.c (print_iteration_domains): Likewise.
5611         (free_poly_bb): Likewise.
5612         (remove_gbbs_in_scop): Likewise.
5613         (free_scop): Likewise.
5614         (dump_gbb_cases): Likewise.
5615         (dump_gbb_conditions): Likewise.
5616         (print_pdrs): Likewise.
5617         (print_scop): Likewise.
5618         * ifcvt.c (cond_move_process_if_block): Likewise.
5619         * lower-subreg.c (decompose_multiword_subregs): Likewise.
5620         * regcprop.c (pass_cprop_hardreg::execute): Likewise.
5621         * sanopt.c (sanitize_rewrite_addressable_params): Likewise.
5622         * sel-sched-dump.c (dump_insn_vector): Likewise.
5623         * store-motion.c (store_ops_ok): Likewise.
5624         (store_killed_in_insn): Likewise.
5625         * timevar.c (timer::named_items::print): Likewise.
5626         * tree-cfgcleanup.c (cleanup_control_flow_pre): Likewise.
5627         (cleanup_tree_cfg_noloop): Likewise.
5628         * tree-data-ref.c (dump_data_references): Likewise.
5629         (print_dir_vectors): Likewise.
5630         (print_dist_vectors): Likewise.
5631         (dump_data_dependence_relations): Likewise.
5632         (dump_dist_dir_vectors): Likewise.
5633         (dump_ddrs): Likewise.
5634         (create_runtime_alias_checks): Likewise.
5635         (free_subscripts): Likewise.
5636         (save_dist_v): Likewise.
5637         (save_dir_v): Likewise.
5638         (invariant_access_functions): Likewise.
5639         (same_access_functions): Likewise.
5640         (access_functions_are_affine_or_constant_p): Likewise.
5641         (find_data_references_in_stmt): Likewise.
5642         (graphite_find_data_references_in_stmt): Likewise.
5643         (free_dependence_relations): Likewise.
5644         (free_data_refs): Likewise.
5645         * tree-inline.c (copy_debug_stmts): Likewise.
5646         * tree-into-ssa.c (dump_currdefs): Likewise.
5647         (rewrite_update_phi_arguments): Likewise.
5648         * tree-ssa-propagate.c (clean_up_loop_closed_phi): Likewise.
5649         * tree-vect-data-refs.c (vect_analyze_possibly_independent_ddr):
5650         Likewise.
5651         (vect_slp_analyze_node_dependences): Likewise.
5652         (vect_slp_analyze_instance_dependence): Likewise.
5653         (vect_record_base_alignments): Likewise.
5654         (vect_get_peeling_costs_all_drs): Likewise.
5655         (vect_peeling_supportable): Likewise.
5656         * tree-vectorizer.c (vec_info::~vec_info): Likewise.
5657         (vec_info::free_stmt_vec_infos): Likewise.
5658
5659 2021-06-13  Jeff Law  <jeffreyalaw@gmail.com>
5660
5661         * config/h8300/logical.md (<code>qi3_1<cczn>): New pattern.
5662         (andqi3_1<cczn>): Removed.
5663         (<ors>qi3_1): Do not split for IOR/XOR a single bit.
5664         (H8/SX bit logicals): Split out from other patterns.
5665         * config/h8300/multiply.md (mulqihi3_const<cczn>): Renamed from
5666         mulqihi3_const_clobber_flags.
5667         (mulqihi3<cczn>, mulhisi3_const<cczn>, mulhisi3<cczn>): Similarly
5668
5669 2021-06-13  H.J. Lu  <hjl.tools@gmail.com>
5670
5671         PR target/101023
5672         * config/i386/i386.c (ix86_expand_prologue): Set red_zone_used
5673         to true if red zone is used.
5674         (ix86_output_indirect_jmp): Replace ix86_red_zone_size with
5675         ix86_red_zone_used.
5676         * config/i386/i386.h (machine_function): Add red_zone_used.
5677         (ix86_red_zone_size): Removed.
5678         (ix86_red_zone_used): New.
5679         * config/i386/i386.md (peephole2 patterns): Replace
5680         ix86_red_zone_size with ix86_red_zone_used.
5681
5682 2021-06-12  Jason Merrill  <jason@redhat.com>
5683
5684         * doc/extend.texi (unused variable attribute): Applies to
5685         structure fields as well.
5686
5687 2021-06-12  Eugene Rozenfeld  <erozen@microsoft.com>
5688
5689         * auto-profile.c (read_profile): fix a typo in an error string
5690
5691 2021-06-11  Thomas Schwinge  <thomas@codesourcery.com>
5692
5693         * tree-pretty-print.h (dump_omp_clauses): Add 'bool = true'
5694         default argument.
5695         * tree-pretty-print.c (dump_omp_clauses): Update.
5696         (dump_generic_node) <OMP_CLAUSE>: Use it.
5697
5698 2021-06-11  Srinath Parvathaneni  <srinath.parvathaneni@arm.com>
5699
5700         PR target/101016
5701         * config/arm/arm_mve.h (__arm_vld1q): Change __ARM_mve_coerce(p0,
5702         int8_t const *) to __ARM_mve_coerce1(p0, int8_t *) in the argument for
5703         the polymorphic variants matching code.
5704         (__arm_vld1q_z): Likewise.
5705         (__arm_vld2q): Likewise.
5706         (__arm_vld4q): Likewise.
5707         (__arm_vldrbq_gather_offset): Likewise.
5708         (__arm_vldrbq_gather_offset_z): Likewise.
5709
5710 2021-06-11  Roger Sayle  <roger@nextmovesoftware.com>
5711
5712         PR tree-optimization/96392
5713         * fold-const.h (tree_expr_maybe_real_minus_zero_p): Fix prototype.
5714
5715 2021-06-11  Roger Sayle  <roger@nextmovesoftware.com>
5716
5717         PR tree-optimization/96392
5718         * fold-const.c (fold_real_zero_addition_p): Take both arguments
5719         of the addition or subtraction, not just the zero.  Use this
5720         other argument in tests for signaling NaNs and signed zeros.
5721         (tree_expr_maybe_real_minus_zero_p): New predicate.
5722         * fold-const.h (fold_real_zero_addition_p): Update prototype.
5723         (tree_expr_maybe_real_minus_zero_p): New function prototype.
5724         * match.pd: Update calls to fold_real_zero_addition_p.
5725         Replace HONOR_NANS with tree_expr_maybe_nan_p.
5726         Replace HONOR_SIGNED_ZEROS with tree_expr_maybe_real_minus_zero_p.
5727         Replace HONOR_SNANS with tree_expr_maybe_signaling_nan_p.
5728         * tree-ssa-reassoc.c (eliminate_using_constants): Update
5729         call to fold_real_zero_addition_p.
5730
5731 2021-06-11  Richard Biener  <rguenther@suse.de>
5732
5733         PR tree-optimization/101025
5734         * tree-ssa-loop-im.c (sm_seq_valid_bb): Make sure to process
5735         all refs that require dependence checking.
5736
5737 2021-06-11  Richard Biener  <rguenther@suse.de>
5738
5739         PR tree-optimization/101028
5740         * tree-vect-slp.c (vect_build_slp_tree_2): When SLP
5741         reassoc discovery fails fatally, mark appropriate lanes
5742         in matches[] so.
5743
5744 2021-06-11  Richard Biener  <rguenther@suse.de>
5745
5746         PR tree-optimization/101026
5747         * tree-vect-slp.c (vect_build_slp_tree_2): Make sure we
5748         have a representative for the associated chain nodes.
5749
5750 2021-06-11  Jakub Jelinek  <jakub@redhat.com>
5751
5752         PR rtl-optimization/101008
5753         * simplify-rtx.c (relational_result): New function.
5754         (simplify_logical_relational_operation,
5755         simplify_relational_operation): Use it.
5756
5757 2021-06-11  Jakub Jelinek  <jakub@redhat.com>
5758
5759         PR target/101007
5760         * config/i386/sse.md (*vec_concat<mode>_0_1): Require TARGET_SSE2.
5761
5762 2021-06-11  Uroš Bizjak  <ubizjak@gmail.com>
5763
5764         PR target/101021
5765         * config/i386/i386-expand.c (expand_vec_perm_pshufb): Return
5766         false if the permutation can be implemented with constant
5767         permutation instruction in wider mode.
5768         (canonicalize_vector_int_perm): Move above expand_vec_perm_pshufb.
5769         Handle V8QImode and V4HImode.
5770
5771 2021-06-11  Martin Liska  <mliska@suse.cz>
5772
5773         PR gcov-profile/100788
5774         * common.opt: Add new option.
5775         * coverage.c (coverage_begin_function): Emit warning instead on
5776         the internal compiler error.
5777         * doc/invoke.texi: Document the option.
5778         * toplev.c (process_options): Enable it by default.
5779
5780 2021-06-11  Richard Biener  <rguenther@suse.de>
5781
5782         PR middle-end/101009
5783         * tree-data-ref.c (build_classic_dist_vector_1): Make sure
5784         to set *init_b to true when we encounter a constant equal
5785         index pair.
5786         (compute_affine_dependence): Also dump the actual DR_REF.
5787
5788 2021-06-10  Aldy Hernandez  <aldyh@redhat.com>
5789
5790         PR tree-optimization/100984
5791         * gimple-ssa-evrp.c  (ssa_equiv_stack): Use auto_vec for
5792         replacements table.
5793         (ssa_equiv_stack::~ssa_equiv_stack): Remove.
5794
5795 2021-06-11  Kewen Lin  <linkw@linux.ibm.com>
5796
5797         * config/rs6000/rs6000.md
5798         (floatsi<SFDF:mode>2_lfiwax_<QHI:mode>_mem_zext): New
5799         define_insn_and_split.
5800
5801 2021-06-11  Richard Biener  <rguenther@suse.de>
5802
5803         * tree-vect-slp.c (vect_build_slp_tree_2): Use stablesort
5804         to sort operands of the associative chain.
5805
5806 2021-06-11  Richard Biener  <rguenther@suse.de>
5807
5808         * system.h (gcc_stablesort_r): Declare.
5809         * sort.cc (gcc_sort_r): Support stable sort.
5810         (gcc_stablesort_r): Define.
5811         * vec.h (vec<>::stablesort): Add.
5812
5813 2021-06-10  Uroš Bizjak  <ubizjak@gmail.com>
5814
5815         PR target/89021
5816         * config/i386/i386-expand.c (ix86_split_mmx_punpck):
5817         Handle V2SF mode.  Emit SHUFPS to fixup unpack-high for V2SF mode.
5818         (expand_vec_perm_blend): Handle 64bit modes for TARGET_SSE4_1.
5819         (expand_vec_perm_pshufb): Handle 64bit modes for TARGET_SSSE3.
5820         (expand_vec_perm_pblendv): Handle 64bit modes for TARGET_SSE4_1.
5821         (expand_vec_perm_interleave2): Handle 64bit modes.
5822         (expand_vec_perm_even_odd_pack): Handle V8QI mode.
5823         (expand_vec_perm_even_odd_1): Ditto.
5824         (ix86_vectorize_vec_perm_const): Ditto.
5825         * config/i386/i386.md (UNSPEC_PSHUFB): Move from ...
5826         * config/i386/sse.md: ... here.
5827         * config/i386/mmx.md (*vec_interleave_lowv2sf):
5828         New insn_and_split pattern.
5829         (*vec_interleave_highv2sf): Ditto.
5830         (mmx_pshufbv8qi3): New insn pattern.
5831         (*mmx_pblendw): Ditto.
5832
5833 2021-06-10  Peter Bergner  <bergner@linux.ibm.com>
5834
5835         * config/rs6000/rs6000-builtin.def (build_pair): New built-in.
5836         (build_acc): Likewise.
5837         * config/rs6000/rs6000-call.c (mma_expand_builtin): Swap assemble
5838         source operands in little-endian mode.
5839         (rs6000_gimple_fold_mma_builtin): Handle VSX_BUILTIN_BUILD_PAIR.
5840         (mma_init_builtins): Likewise.
5841         * config/rs6000/rs6000.c (rs6000_split_multireg_move): Handle endianness
5842         ordering for the MMA assemble and build source operands.
5843         * doc/extend.texi (__builtin_vsx_build_acc, __builtin_mma_build_pair):
5844         Document.
5845         (__builtin_mma_assemble_acc, __builtin_mma_assemble_pair): Remove
5846         documentation.
5847
5848 2021-06-10  Jeff Law  <jeffreyalaw@gmail.com>
5849
5850         * config/h8300/h8300.c (select_cc_mode): Handle MEM.  Use
5851         REG_P.
5852         * config/h8300/extensions.md: Replace _clobber_flags patterns
5853         with <cczn>.
5854
5855 2021-06-10  Robin Dapp  <rdapp@linux.ibm.com>
5856
5857         * config/s390/vector.md (vcond_mask_<mode><mode>): Change to
5858         (vcond_mask_<mode><tointvec>): this.
5859
5860 2021-06-10  Andrew Stubbs  <ams@codesourcery.com>
5861             Thomas Schwinge  <thomas@codesourcery.com>
5862
5863         * omp-builtins.def (BUILT_IN_GOACC_ENTER_EXIT_DATA): Split into...
5864         (BUILT_IN_GOACC_ENTER_DATA, BUILT_IN_GOACC_EXIT_DATA): ... these.
5865         * gimple.h (enum gf_mask): Split
5866         'GF_OMP_TARGET_KIND_OACC_ENTER_EXIT_DATA' into
5867         'GF_OMP_TARGET_KIND_OACC_ENTER_DATA' and
5868         'GF_OMP_TARGET_KIND_OACC_EXIT_DATA'.
5869         (is_gimple_omp_oacc): Update.
5870         * gimple-pretty-print.c (dump_gimple_omp_target): Likewise.
5871         * gimplify.c (gimplify_omp_target_update): Likewise.
5872         * omp-expand.c (expand_omp_target, build_omp_regions_1)
5873         (omp_make_gimple_edges): Likewise.
5874         * omp-low.c (check_omp_nesting_restrictions, lower_omp_target):
5875         Likewise.
5876
5877 2021-06-10  Aldy Hernandez  <aldyh@redhat.com>
5878
5879         * value-query.cc (value_query::value_on_edge): Rename name to
5880         expr.
5881         (range_query::range_on_edge): Same.
5882         (range_query::value_of_expr): Same.
5883         (range_query::value_on_edge): Same.
5884         * value-query.h (class value_query): Same.
5885         (class range_query): Same.
5886
5887 2021-06-10  Richard Biener  <rguenther@suse.de>
5888
5889         PR tree-optimization/101003
5890         * tree-vect-slp.c (vect_build_slp_tree_2): Appropriately
5891         use the pattern stmt defs when linearizing a chain.
5892
5893 2021-06-10  Jakub Jelinek  <jakub@redhat.com>
5894
5895         PR debug/100852
5896         * ifcvt.c (noce_get_alt_condition, noce_try_abs): Use
5897         prev_nonnote_nondebug_insn instead of prev_nonnote_insn.
5898
5899 2021-06-10  Clement Chigot  <clement.chigot@atos.net>
5900
5901         * config/rs6000/aix71.h (ASM_CPU_SPEC): Add Power10 directive.
5902         * config/rs6000/aix72.h (ASM_CPU_SPEC): Likewise.
5903
5904 2021-06-09  Andrew Pinski  <apinski@marvell.com>
5905
5906         PR tree-optimization/100925
5907         * match.pd (a ? CST1 : CST2): Limit transformations
5908         that would produce a negative to integeral types only.
5909         Change !POINTER_TYPE_P to INTEGRAL_TYPE_P also.
5910
5911 2021-06-09  Jeff Law  <jeffreyalaw@gmail.com>
5912
5913         Revert:
5914         2021-06-09  Jeff Law  <jeffreyalaw@gmail.com>
5915
5916         * doc/tm.texi: Correctly update.
5917
5918 2021-06-09  Jeff Law  <jeffreyalaw@gmail.com>
5919
5920         * doc/tm.texi: Correctly update.
5921
5922 2021-06-09  H.J. Lu  <hjl.tools@gmail.com>
5923
5924         PR other/100735
5925         * doc/tm.texi.in (Trampolines): Add a missing blank line.
5926
5927 2021-06-09  Paul Eggert  <eggert@cs.ucla.edu>
5928
5929         PR other/100735
5930         * doc/invoke.texi (Code Gen Options); Document that -fno-trampolines
5931         and -ftrampolines work only with Ada.
5932         * doc/tm.texi.in (Trampolines): Likewise.
5933         * doc/tm.texi: Regenerated.
5934
5935 2021-06-09  Carl Love  <cel@us.ibm.com>
5936
5937         * config/rs6000/altivec.h (vec_signextll, vec_signexti, vec_signextq):
5938         Add define for new builtins.
5939         * config/rs6000/altivec.md(altivec_vreveti2): Add define_expand.
5940         * config/rs6000/rs6000-builtin.def (VSIGNEXTI, VSIGNEXTLL):  Add
5941         overloaded builtin definitions.
5942         (VSIGNEXTSB2W, VSIGNEXTSH2W, VSIGNEXTSB2D, VSIGNEXTSH2D,VSIGNEXTSW2D,
5943         VSIGNEXTSD2Q):  Add builtin expansions.
5944         (SIGNEXT): Add P10 overload definition.
5945         * config/rs6000/rs6000-call.c (P9V_BUILTIN_VEC_VSIGNEXTI, P9V_BUILTIN_VEC_VSIGNEXTLL,
5946         P10_BUILTIN_VEC_SIGNEXT): Add overloaded argument definitions.
5947         * config/rs6000/vsx.md (vsx_sign_extend_v2di_v1ti): Add define_insn.
5948         (vsignextend_v2di_v1ti, vsignextend_qi_<mode>, vsignextend_hi_<mode>,
5949         vsignextend_si_v2di)[VIlong]: Add define_expand.
5950         Make define_insn vsx_sign_extend_si_v2di visible.
5951         * doc/extend.texi:  Add documentation for the vec_signexti,
5952         vec_signextll builtins and vec_signextq.
5953
5954 2021-06-09  Carl Love  <cel@us.ibm.com>
5955
5956         * config/rs6000/rs6000.c (__fixkfti, __fixunskfti, __floattikf,
5957         __floatuntikf): Names changed to __fixkfti_sw, __fixunskfti_sw,
5958         __floattikf_sw, __floatuntikf_sw respectively.
5959         * config/rs6000/rs6000.md (floatti<mode>2, floatunsti<mode>2,
5960         fix_trunc<mode>ti2, fixuns_trunc<mode>ti2): Add
5961         define_insn for mode IEEE 128.
5962
5963 2021-06-09  Carl Love  <cel@us.ibm.com>
5964
5965         * config/rs6000/altivec.md (altivec_vslq, altivec_vsrq):
5966         Rename to altivec_vslq_<mode>, altivec_vsrq_<mode>, mode VEC_TI.
5967         * config/rs6000/vector.md (VEC_TI): Was named VSX_TI in vsx.md.
5968         (vashlv1ti3): Change to vashl<mode>3, mode VEC_TI.
5969         (vlshrv1ti3): Change to vlshr<mode>3, mode VEC_TI.
5970         * config/rs6000/vsx.md (VSX_TI): Remove define_mode_iterator. Update
5971         uses of VSX_TI to VEC_TI.
5972
5973 2021-06-09  Carl Love  <cel@us.ibm.com>
5974
5975         * config/rs6000/dfp.md (floattitd2, fixtdti2): New define_insns.
5976
5977 2021-06-09  Carl Love  <cel@us.ibm.com>
5978
5979         * config/rs6000/altivec.h (vec_dive, vec_mod): Add define for new
5980         builtins.
5981         * config/rs6000/altivec.md (UNSPEC_VMULEUD, UNSPEC_VMULESD,
5982         UNSPEC_VMULOUD, UNSPEC_VMULOSD): New unspecs.
5983         (altivec_eqv1ti, altivec_gtv1ti, altivec_gtuv1ti, altivec_vmuleud,
5984         altivec_vmuloud, altivec_vmulesd, altivec_vmulosd, altivec_vrlq,
5985         altivec_vrlqmi, altivec_vrlqmi_inst, altivec_vrlqnm,
5986         altivec_vrlqnm_inst, altivec_vslq, altivec_vsrq, altivec_vsraq,
5987         altivec_vcmpequt_p, altivec_vcmpgtst_p, altivec_vcmpgtut_p): New
5988         define_insn.
5989         (vec_widen_umult_even_v2di, vec_widen_smult_even_v2di,
5990         vec_widen_umult_odd_v2di, vec_widen_smult_odd_v2di, altivec_vrlqmi,
5991         altivec_vrlqnm): New define_expands.
5992         * config/rs6000/rs6000-builtin.def (VCMPEQUT_P, VCMPGTST_P,
5993         VCMPGTUT_P): Add macro expansions.
5994         (BU_P10V_AV_P): Add builtin predicate definition.
5995         (VCMPGTUT, VCMPGTST, VCMPEQUT, CMPNET, CMPGE_1TI,
5996         CMPGE_U1TI, CMPLE_1TI, CMPLE_U1TI, VNOR_V1TI_UNS, VNOR_V1TI, VCMPNET_P,
5997         VCMPAET_P, VMULEUD, VMULESD, VMULOUD, VMULOSD, VRLQ,
5998         VSLQ, VSRQ, VSRAQ, VRLQNM, DIV_V1TI, UDIV_V1TI, DIVES_V1TI, DIVEU_V1TI,
5999         MODS_V1TI, MODU_V1TI, VRLQMI): New macro expansions.
6000         (VRLQ, VSLQ, VSRQ, VSRAQ, DIVE, MOD): New overload expansions.
6001         * config/rs6000/rs6000-call.c (P10_BUILTIN_VCMPEQUT,
6002         P10V_BUILTIN_CMPGE_1TI, P10V_BUILTIN_CMPGE_U1TI,
6003         P10V_BUILTIN_VCMPGTUT, P10V_BUILTIN_VCMPGTST,
6004         P10V_BUILTIN_CMPLE_1TI, P10V_BUILTIN_VCMPLE_U1TI,
6005         P10V_BUILTIN_DIV_V1TI, P10V_BUILTIN_UDIV_V1TI,
6006         P10V_BUILTIN_VMULESD, P10V_BUILTIN_VMULEUD,
6007         P10V_BUILTIN_VMULOSD, P10V_BUILTIN_VMULOUD,
6008         P10V_BUILTIN_VNOR_V1TI, P10V_BUILTIN_VNOR_V1TI_UNS,
6009         P10V_BUILTIN_VRLQ, P10V_BUILTIN_VRLQMI,
6010         P10V_BUILTIN_VRLQNM, P10V_BUILTIN_VSLQ,
6011         P10V_BUILTIN_VSRQ, P10V_BUILTIN_VSRAQ,
6012         P10V_BUILTIN_VCMPGTUT_P, P10V_BUILTIN_VCMPGTST_P,
6013         P10V_BUILTIN_VCMPEQUT_P, P10V_BUILTIN_VCMPGTUT_P,
6014         P10V_BUILTIN_VCMPGTST_P, P10V_BUILTIN_CMPNET,
6015         P10V_BUILTIN_VCMPNET_P, P10V_BUILTIN_VCMPAET_P,
6016         P10V_BUILTIN_DIVES_V1TI, P10V_BUILTIN_MODS_V1TI,
6017         P10V_BUILTIN_MODU_V1TI):
6018         New overloaded definitions.
6019         (rs6000_gimple_fold_builtin) [P10V_BUILTIN_VCMPEQUT,
6020         P10V_BUILTIN_CMPNET, P10V_BUILTIN_CMPGE_1TI,
6021         P10V_BUILTIN_CMPGE_U1TI, P10V_BUILTIN_VCMPGTUT,
6022         P10V_BUILTIN_VCMPGTST, P10V_BUILTIN_CMPLE_1TI,
6023         P10V_BUILTIN_CMPLE_U1TI]: New case statements.
6024         (rs6000_init_builtins) [bool_V1TI_type_node, int_ftype_int_v1ti_v1ti]:
6025         New assignments.
6026         (altivec_init_builtins): New E_V1TImode case statement.
6027         (builtin_function_type)[P10_BUILTIN_128BIT_VMULEUD,
6028         P10_BUILTIN_128BIT_VMULOUD, P10_BUILTIN_128BIT_DIVEU_V1TI,
6029         P10_BUILTIN_128BIT_MODU_V1TI, P10_BUILTIN_CMPGE_U1TI,
6030         P10_BUILTIN_VCMPGTUT, P10_BUILTIN_VCMPEQUT]: New case statements.
6031         * config/rs6000/rs6000.c (rs6000_handle_altivec_attribute) [E_TImode,
6032         E_V1TImode]: New case statements.
6033         * config/rs6000/rs6000.h (rs6000_builtin_type_index): New enum
6034         value RS6000_BTI_bool_V1TI.
6035         * config/rs6000/vector.md (vector_gtv1ti,vector_nltv1ti,
6036         vector_gtuv1ti, vector_nltuv1ti, vector_ngtv1ti, vector_ngtuv1ti,
6037         vector_eq_v1ti_p, vector_ne_v1ti_p, vector_ae_v1ti_p,
6038         vector_gt_v1ti_p, vector_gtu_v1ti_p, vrotlv1ti3, vashlv1ti3,
6039         vlshrv1ti3, vashrv1ti3): New define_expands.
6040         * config/rs6000/vsx.md (UNSPEC_VSX_DIVSQ, UNSPEC_VSX_DIVUQ,
6041         UNSPEC_VSX_DIVESQ, UNSPEC_VSX_DIVEUQ, UNSPEC_VSX_MODSQ,
6042         UNSPEC_VSX_MODUQ): New unspecs.
6043         (mulv2di3, vsx_div_v1ti, vsx_udiv_v1ti, vsx_dives_v1ti,
6044         vsx_diveu_v1ti, vsx_mods_v1ti, vsx_modu_v1ti, xxswapd_v1ti): New
6045         define_insns.
6046         (vcmpnet): New define_expand.
6047         * doc/extend.texi: Add documentation for the new builtins vec_rl,
6048         vec_rlmi, vec_rlnm, vec_sl, vec_sr, vec_sra, vec_mule, vec_mulo,
6049         vec_div, vec_dive, vec_mod, vec_cmpeq, vec_cmpne, vec_cmpgt, vec_cmplt,
6050         vec_cmpge, vec_cmple, vec_all_eq, vec_all_ne, vec_all_gt, vec_all_lt,
6051         vec_all_ge, vec_all_le, vec_any_eq, vec_any_ne, vec_any_gt, vec_any_lt,
6052         vec_any_ge, vec_any_le.
6053
6054 2021-06-09  Carl Love  <cel@us.ibm.com>
6055
6056         * config/rs6000/altivec.md (altivec_vrl<VI_char>mi): Fix
6057         bug in argument generation.
6058
6059 2021-06-09  Christophe Lyon  <christophe.lyon@linaro.org>
6060
6061         * config/arm/iterators.md (<supf>): Remove VCLZQ_U, VCLZQ_S.
6062         (VCLZQ): Remove.
6063         * config/arm/mve.md (mve_vclzq_<supf><mode>): Add '@' prefix,
6064         remove <supf> iterator.
6065         (mve_vclzq_u<mode>): New.
6066         * config/arm/neon.md (clz<mode>2): Rename to neon_vclz<mode>.
6067         (neon_vclz<mode): Move to ...
6068         * config/arm/unspecs.md (VCLZQ_U, VCLZQ_S): Remove.
6069         * config/arm/vec-common.md: ... here. Add support for MVE.
6070
6071 2021-06-09  Christophe Lyon  <christophe.lyon@linaro.org>
6072
6073         * config/arm/mve.md (mve_vhaddq_<supf><mode>): Prefix with '@'.
6074         (@mve_vrhaddq_<supf><mode): Likewise.
6075         * config/arm/neon.md (neon_v<r>hadd<sup><mode>): Likewise.
6076         * config/arm/vec-common.md (avg<mode>3_floor, uavg<mode>3_floor)
6077         (avg<mode>3_ceil", uavg<mode>3_ceil): New patterns.
6078
6079 2021-06-09  imba-tjd  <109224573@qq.com>
6080
6081         * doc/invoke.texi: Fix typo.
6082
6083 2021-06-09  Roger Sayle  <roger@nextmovesoftware.com>
6084
6085         PR middle-end/53267
6086         * fold-const-call.c (fold_const_call_sss) [CASE_CFN_FMOD]:
6087         Support evaluation of fmod/fmodf/fmodl at compile-time.
6088
6089 2021-06-09  Richard Biener  <rguenther@suse.de>
6090
6091         PR tree-optimization/100981
6092         * tree-vect-loop.c (vect_create_epilog_for_reduction): Use
6093         gimple_get_lhs to also handle calls.
6094         * tree-vect-slp-patterns.c (complex_pattern::build): Transfer
6095         reduction info.
6096
6097 2021-06-09  Richard Biener  <rguenther@suse.de>
6098
6099         PR tree-optimization/97832
6100         * tree-vectorizer.h (_slp_tree::failed): New.
6101         * tree-vect-slp.c (_slp_tree::_slp_tree): Initialize
6102         failed member.
6103         (_slp_tree::~_slp_tree): Free failed.
6104         (vect_build_slp_tree): Retain failed nodes and record
6105         matches in them, copying that back out when running
6106         into a cached fail.  Dump start and end of discovery.
6107         (dt_sort_cmp): New.
6108         (vect_build_slp_tree_2): Handle associatable chains
6109         together doing more aggressive operand swapping.
6110
6111 2021-06-09  H.J. Lu  <hjl.tools@gmail.com>
6112
6113         PR target/100896
6114         * config.gcc (gcc_cv_initfini_array): Set to yes for Linux and
6115         GNU targets.
6116         * doc/install.texi: Require glibc 2.1 and binutils 2.12 for
6117         Linux and GNU targets.
6118
6119 2021-06-09  Richard Biener  <rguenther@suse.de>
6120
6121         * tree-vect-stmts.c (vect_is_simple_use): Always get dt
6122         from the stmt.
6123
6124 2021-06-09  Claudiu Zissulescu  <claziss@synopsys.com>
6125
6126         * config/arc/arc.md (loop_end): Change it to
6127         define_insn_and_split.
6128
6129 2021-06-09  Claudiu Zissulescu  <claziss@synopsys.com>
6130
6131         * config/arc/arc.md (maddhisi4): Use VMAC2H instruction.
6132         (machi): New pattern.
6133         (umaddhisi4): Use VMAC2HU instruction.
6134         (umachi): New pattern.
6135
6136 2021-06-09  Claudiu Zissulescu  <claziss@synopsys.com>
6137
6138         * config/arc/arc-protos.h (arc_split_move_p): New prototype.
6139         * config/arc/arc.c (arc_split_move_p): New function.
6140         (arc_split_move): Clean up.
6141         * config/arc/arc.md (movdi_insn): Clean up, use arc_split_move_p.
6142         (movdf_insn): Likewise.
6143         * config/arc/simdext.md (mov<VWH>_insn): Likewise.
6144
6145 2021-06-09  Uroš Bizjak  <ubizjak@gmail.com>
6146
6147         PR target/100936
6148         * config/i386/i386.c (print_operand_address_as): Rename "no_rip"
6149         argument to "raw".  Do not emit segment overrides when "raw" is true.
6150
6151 2021-06-09  Martin Liska  <mliska@suse.cz>
6152
6153         * doc/gcov.texi: Create a proper JSON files.
6154         * doc/invoke.texi: Remove dots in order to make it a valid
6155         JSON object.
6156
6157 2021-06-09  Xionghu Luo  <luoxhu@linux.ibm.com>
6158
6159         * config/rs6000/rs6000-p8swap.c (pattern_is_rotate64): New.
6160         (insn_is_load_p): Use pattern_is_rotate64.
6161         (insn_is_swap_p): Likewise.
6162         (quad_aligned_load_p): Likewise.
6163         (const_load_sequence_p): Likewise.
6164         (replace_swapped_aligned_load): Likewise.
6165         (recombine_lvx_pattern): Likewise.
6166         (recombine_stvx_pattern): Likewise.
6167
6168 2021-06-09  Andrew MacLeod  <amacleod@redhat.com>
6169
6170         * gimple-range-gori.cc (gori_compute::outgoing_edge_range_p): Use a
6171         fur_stmt source record.
6172         * gimple-range.cc (fur_source::get_operand): Generic range query.
6173         (fur_source::get_phi_operand): New.
6174         (fur_source::register_dependency): New.
6175         (fur_source::query): New.
6176         (class fur_edge): New.  Edge source for operands.
6177         (fur_edge::fur_edge): New.
6178         (fur_edge::get_operand): New.
6179         (fur_edge::get_phi_operand): New.
6180         (fur_edge::query): New.
6181         (fur_stmt::fur_stmt): New.
6182         (fur_stmt::get_operand): New.
6183         (fur_stmt::get_phi_operand): New.
6184         (fur_stmt::query): New.
6185         (class fur_depend): New.  Statement source and process dependencies.
6186         (fur_depend::fur_depend): New.
6187         (fur_depend::register_dependency): New.
6188         (class fur_list): New.  List source for operands.
6189         (fur_list::fur_list): New.
6190         (fur_list::get_operand): New.
6191         (fur_list::get_phi_operand): New.
6192         (fold_range): New.  Instantiate appropriate fur_source class and fold.
6193         (fold_using_range::range_of_range_op): Use new API.
6194         (fold_using_range::range_of_address): Ditto.
6195         (fold_using_range::range_of_phi): Ditto.
6196         (imple_ranger::fold_range_internal): Use fur_depend class.
6197         (fold_using_range::range_of_ssa_name_with_loop_info): Use new API.
6198         * gimple-range.h (class fur_source): Now a base class.
6199         (class fur_stmt): New.
6200         (fold_range): New prototypes.
6201         (fur_source::fur_source): Delete.
6202
6203 2021-06-08  Andrew Pinski  <apinski@marvell.com>
6204
6205         PR tree-optimization/25290
6206         * tree-ssa-phiopt.c (xor_replacement): Delete.
6207         (tree_ssa_phiopt_worker): Delete use of xor_replacement.
6208         (match_simplify_replacement): Allow one cheap preparation
6209         statement that can be moved to before the if.
6210
6211 2021-06-08  Pat Haugen  <pthaugen@linux.ibm.com>
6212
6213         * config/rs6000/power10.md (power10-fused-load, power10-fused-store,
6214         power10-fused_alu, power10-fused-vec, power10-fused-branch): New.
6215
6216 2021-06-08  Jeff Law  <jeffreyalaw@gmail.com>
6217
6218         * config/h8300/logical.md (andqi3_1): Move BCLR case into define_insn_and_split.
6219         Create length attribute on define_insn_and_split.  Only split for cases which we
6220         know will use AND.
6221         (andqi3_1<cczn>): Renamed from andqi3_1_clobber_flags.  Only handle AND here and
6222         fix length computation.
6223         (b<code><mode>msx): Combine QImode and HImode H8/SX patterns using iterator.
6224
6225 2021-06-08  Richard Biener  <rguenther@suse.de>
6226
6227         PR tree-optimization/100923
6228         * tree-ssa-sccvn.c (valueize_refs_1): Take a pointer to
6229         the operand vector to be valueized.
6230         (valueize_refs): Likewise.
6231         (valueize_shared_reference_ops_from_ref): Adjust.
6232         (valueize_shared_reference_ops_from_call): Likewise.
6233         (vn_reference_lookup_3): Likewise.
6234         (vn_reference_lookup_pieces): Likewise.  Re-valueize
6235         with honoring availability when we are about to create
6236         the ao_ref and valueized before.
6237         (vn_reference_lookup): Likewise.
6238         (vn_reference_insert_pieces): Adjust.
6239
6240 2021-06-08  Richard Biener  <rguenther@suse.de>
6241
6242         * tree-vectorizer.h (_slp_instance::root_stmt): Change to...
6243         (_slp_instance::root_stmts): ... a vector.
6244         (SLP_INSTANCE_ROOT_STMT): Rename to ...
6245         (SLP_INSTANCE_ROOT_STMTS): ... this.
6246         (slp_root::root): Change to...
6247         (slp_root::roots): ... a vector.
6248         (slp_root::slp_root): Adjust.
6249         * tree-vect-slp.c (_slp_instance::location): Adjust.
6250         (vect_free_slp_instance): Release the root stmt vector.
6251         (vect_build_slp_instance): Adjust.
6252         (vect_analyze_slp): Likewise.
6253         (_bb_vec_info::~_bb_vec_info): Likewise.
6254         (vect_slp_analyze_operations): Likewise.
6255         (vect_bb_vectorization_profitable_p): Likewise.  Adjust
6256         costs for the root stmt.
6257         (vect_slp_check_for_constructors): Gather all BIT_INSERT_EXPRs
6258         as root stmts.
6259         (vect_slp_analyze_bb_1): Simplify by marking all root stmts
6260         as pure_slp.
6261         (vectorize_slp_instance_root_stmt): Adjust.
6262         (vect_schedule_slp): Likewise.
6263
6264 2021-06-08  Aldy Hernandez  <aldyh@redhat.com>
6265
6266         * gimple-ssa-evrp.c (class ssa_equiv_stack): New.
6267         (ssa_equiv_stack::ssa_equiv_stack): New.
6268         (ssa_equiv_stack::~ssa_equiv_stack): New.
6269         (ssa_equiv_stack::enter): New.
6270         (ssa_equiv_stack::leave): New.
6271         (ssa_equiv_stack::push_replacement): New.
6272         (ssa_equiv_stack::get_replacement): New.
6273         (is_pointer_ssa): New.
6274         (class pointer_equiv_analyzer): New.
6275         (pointer_equiv_analyzer::pointer_equiv_analyzer): New.
6276         (pointer_equiv_analyzer::~pointer_equiv_analyzer): New.
6277         (pointer_equiv_analyzer::set_global_equiv): New.
6278         (pointer_equiv_analyzer::set_cond_equiv): New.
6279         (pointer_equiv_analyzer::get_equiv): New.
6280         (pointer_equiv_analyzer::enter): New.
6281         (pointer_equiv_analyzer::leave): New.
6282         (pointer_equiv_analyzer::get_equiv_expr): New.
6283         (pta_valueize): New.
6284         (pointer_equiv_analyzer::visit_stmt): New.
6285         (pointer_equiv_analyzer::visit_edge): New.
6286         (hybrid_folder::value_of_expr): Call PTA.
6287         (hybrid_folder::value_on_edge): Same.
6288         (hybrid_folder::pre_fold_bb): New.
6289         (hybrid_folder::post_fold_bb): New.
6290         (hybrid_folder::pre_fold_stmt): New.
6291         (rvrp_folder::pre_fold_bb): New.
6292         (rvrp_folder::post_fold_bb): New.
6293         (rvrp_folder::pre_fold_stmt): New.
6294         (rvrp_folder::value_of_expr): Call PTA.
6295         (rvrp_folder::value_on_edge): Same.
6296
6297 2021-06-08  Jakub Jelinek  <jakub@redhat.com>
6298
6299         PR c++/100957
6300         * tree-inline.c (copy_tree_body_r): For OMP_CLAUSE_DEPEND don't
6301         check TREE_CODE if OMP_CLAUSE_DECL is NULL.
6302
6303 2021-06-08  Richard Biener  <rguenther@suse.de>
6304
6305         PR middle-end/100951
6306         * tree-vect-generic.c (expand_vector_piecewise): Build a
6307         VECTOR_CST if all elements are constant.
6308         (expand_vector_condition): Likewise.
6309         (lower_vec_perm): Likewise.
6310         (expand_vector_conversion): Likewise.
6311
6312 2021-06-08  Martin Liska  <mliska@suse.cz>
6313
6314         * doc/invoke.texi: Document new param evrp-sparse-threshold.
6315
6316 2021-06-08  Martin Liska  <mliska@suse.cz>
6317
6318         * genautomata.c (create_automata): Fix typo.
6319
6320 2021-06-08  Kewen Lin  <linkw@linux.ibm.com>
6321
6322         PR tree-optimization/100794
6323         * tree-predcom.c (tree_predictive_commoning_loop): Add parameter
6324         allow_unroll_p and only allow unrolling when it's true.
6325         (tree_predictive_commoning): Add parameter allow_unroll_p and
6326         adjust for it.
6327         (run_tree_predictive_commoning): Likewise.
6328         (pass_predcom::gate): Check flag_tree_loop_vectorize and
6329         global_options_set.x_flag_predictive_commoning.
6330         (pass_predcom::execute): Adjust for allow_unroll_p.
6331
6332 2021-06-08  Kewen Lin  <linkw@linux.ibm.com>
6333
6334         * tree-predcom.c (execute_pred_commoning): Remove update_ssa call.
6335         (tree_predictive_commoning_loop): Factor some cleanup stuffs into
6336         lambda function cleanup, remove scev_reset call, and adjust return
6337         value.
6338         (tree_predictive_commoning): Adjust for different changed values,
6339         only set flag TODO_update_ssa_only_virtuals if changed.
6340         (pass_data pass_data_predcom): Remove TODO_update_ssa_only_virtuals
6341         from todo_flags_finish.
6342
6343 2021-06-07  Andrew MacLeod  <amacleod@redhat.com>
6344
6345         * gimple-range-cache.cc (class sbr_sparse_bitmap): New.
6346         (sbr_sparse_bitmap::sbr_sparse_bitmap): New.
6347         (sbr_sparse_bitmap::bitmap_set_quad): New.
6348         (sbr_sparse_bitmap::bitmap_get_quad): New.
6349         (sbr_sparse_bitmap::set_bb_range): New.
6350         (sbr_sparse_bitmap::get_bb_range): New.
6351         (sbr_sparse_bitmap::bb_range_p): New.
6352         (block_range_cache::block_range_cache): initialize bitmap obstack.
6353         (block_range_cache::~block_range_cache): Destruct obstack.
6354         (block_range_cache::set_bb_range): Decide when to utilze the
6355         sparse on entry cache.
6356         * gimple-range-cache.h (block_range_cache): Add bitmap obstack.
6357         * params.opt (-param=evrp-sparse-threshold): New.
6358
6359 2021-06-07  Andrew MacLeod  <amacleod@redhat.com>
6360
6361         * bitmap.c (bitmap_set_aligned_chunk): New.
6362         (bitmap_get_aligned_chunk): New.
6363         (test_aligned_chunk): New.
6364         (bitmap_c_tests): Call test_aligned_chunk.
6365         * bitmap.h (bitmap_set_aligned_chunk, bitmap_get_aligned_chunk): New.
6366
6367 2021-06-07  Uroš Bizjak  <ubizjak@gmail.com>
6368
6369         PR target/100637
6370         * config/i386/i386-expand.c (ix86_expand_vector_init_duplicate):
6371         Handle V4QI mode.
6372         (ix86_expand_vector_init_one_nonzero): Ditto.
6373         (ix86_expand_vector_init_one_var): Ditto.
6374         (ix86_expand_vector_init_general): Ditto.
6375         * config/i386/mmx.md (vec_initv4qiqi): New expander.
6376
6377 2021-06-07  Jeff Law  <jeffreyalaw@gmail.com>
6378
6379         * config/h8300/movepush.md: Change most _clobber_flags
6380         patterns to instead use <cczn> subst.
6381         (movsi_cczn): New pattern with usable CC cases split out.
6382         (movsi_h8sx_cczn): Likewise.
6383
6384 2021-06-07  Martin Liska  <mliska@suse.cz>
6385
6386         * common/common-target.def: Split long lines and replace them
6387         with '\n\'.
6388         * target.def: Likewise.
6389         * doc/tm.texi: Re-generated.
6390
6391 2021-06-07  Jakub Jelinek  <jakub@redhat.com>
6392
6393         PR target/100887
6394         * fold-const.c (fold_read_from_vector): Return NULL if trying to
6395         read from a CONSTRUCTOR with vector type elements.
6396
6397 2021-06-07  Jakub Jelinek  <jakub@redhat.com>
6398
6399         PR middle-end/100898
6400         * tree-inline.c (copy_bb): Only use gimple_call_arg_ptr if memcpy
6401         should copy any arguments.  Don't call gimple_call_num_args
6402         on id->call_stmt or call_stmt more than once.
6403
6404 2021-06-07  liuhongt  <hongtao.liu@intel.com>
6405
6406         PR target/100885
6407         * config/i386/sse.md (*sse4_1_zero_extendv8qiv8hi2_3): Refine
6408         constraints.
6409         (<insn>v4siv4di2): Delete constraints for define_expand.
6410
6411 2021-06-07  liuhongt  <hongtao.liu@intel.com>
6412
6413         PR target/82735
6414         * config/i386/i386-expand.c (ix86_expand_builtin): Remove
6415         assignment of cfun->machine->has_explicit_vzeroupper.
6416         * config/i386/i386-features.c
6417         (ix86_add_reg_usage_to_vzerouppers): Delete.
6418         (ix86_add_reg_usage_to_vzeroupper): Ditto.
6419         (rest_of_handle_insert_vzeroupper): Remove
6420         ix86_add_reg_usage_to_vzerouppers, add df_analyze at the end
6421         of the function.
6422         (gate): Remove cfun->machine->has_explicit_vzeroupper.
6423         * config/i386/i386-protos.h (ix86_expand_avx_vzeroupper):
6424         Declared.
6425         * config/i386/i386.c (ix86_insn_callee_abi): New function.
6426         (ix86_initialize_callee_abi): Ditto.
6427         (ix86_expand_avx_vzeroupper): Ditto.
6428         (ix86_hard_regno_call_part_clobbered): Adjust for vzeroupper
6429         ABI.
6430         (TARGET_INSN_CALLEE_ABI): Define as ix86_insn_callee_abi.
6431         (ix86_emit_mode_set): Call ix86_expand_avx_vzeroupper
6432         directly.
6433         * config/i386/i386.h (struct GTY(()) machine_function): Delete
6434         has_explicit_vzeroupper.
6435         * config/i386/i386.md (enum unspec): New member
6436         UNSPEC_CALLEE_ABI.
6437         (ABI_DEFAULT,ABI_VZEROUPPER,ABI_UNKNOWN): New
6438         define_constants for insn callee abi index.
6439         * config/i386/predicates.md (vzeroupper_pattern): Adjust.
6440         * config/i386/sse.md (UNSPECV_VZEROUPPER): Deleted.
6441         (avx_vzeroupper): Call ix86_expand_avx_vzeroupper.
6442         (*avx_vzeroupper): Rename to ..
6443         (avx_vzeroupper_callee_abi): .. this, and adjust pattern as
6444         call_insn which has a special vzeroupper ABI.
6445         (*avx_vzeroupper_1): Deleted.
6446
6447 2021-06-07  liuhongt  <hongtao.liu@intel.com>
6448
6449         PR target/82735
6450         * df-scan.c (df_get_call_refs): When call_insn is a fake call,
6451         it won't use stack pointer reg.
6452         * final.c (leaf_function_p): When call_insn is a fake call, it
6453         won't affect caller as a leaf function.
6454         * reg-stack.c (callee_clobbers_any_stack_reg): New.
6455         (subst_stack_regs): When call_insn doesn't clobber any stack
6456         reg, don't clear the arguments.
6457         * rtl.c (shallow_copy_rtx): Don't clear flag used when orig is
6458         a insn.
6459         * shrink-wrap.c (requires_stack_frame_p): No need for stack
6460         frame for a fake call.
6461         * rtl.h (FAKE_CALL_P): New macro.
6462
6463 2021-06-06  Eric Botcazou  <ebotcazou@adacore.com>
6464
6465         * config/sparc/sparc-protos.h (order_regs_for_local_alloc): Rename
6466         to...
6467         (sparc_order_regs_for_local_alloc): ...this.
6468         (sparc_leaf_reg_remap): Declare.
6469         * config/sparc/sparc.h (ADJUST_REG_ALLOC_ORDER): Adjust.
6470         (LEAF_REG_REMAP): Reimplement as call to sparc_leaf_reg_remap.
6471         * config/sparc/sparc.c (leaf_reg_remap): Delete.
6472         (order_regs_for_local_alloc): Rename to...
6473         (sparc_order_regs_for_local_alloc): ...this.
6474         (sparc_leaf_reg_remap): New function.
6475         (sparc_conditional_register_usage): Do not modify leaf_reg_remap.
6476
6477 2021-06-06  David Edelsohn  <dje.gcc@gmail.com>
6478
6479         * config/rs6000/rs6000.c (rs6000_xcoff_asm_output_aligned_decl_common):
6480         Use assemble_name to output BSS section name.
6481
6482 2021-06-06  Uroš Bizjak  <ubizjak@gmail.com>
6483
6484         * config/i386/constraints.md (Bs):
6485         Remove boolean operators from match_test RTX.
6486         (Bw): Ditto.
6487         (L): Ditto.
6488         (M): Use "mode" variable instead of GET_MODE (op) in match_test RTX.
6489         (Wz): Ditto.
6490
6491 2021-06-06  Martin Liska  <mliska@suse.cz>
6492
6493         * doc/extend.texi: Add missing @headitem.
6494         * doc/invoke.texi: Likewise.
6495         * doc/objc.texi: Likewise.
6496
6497 2021-06-06  Martin Liska  <mliska@suse.cz>
6498
6499         * genhooks.c (emit_findices): Remove unused function.
6500         (emit_documentation): Do not call emit_findices
6501         and do not search for @Fcode directives.
6502
6503 2021-06-06  Martin Liska  <mliska@suse.cz>
6504
6505         * doc/invoke.texi: Remove extra character.
6506
6507 2021-06-05  Kewen Lin  <linkw@linux.ibm.com>
6508
6509         * config/sh/sh.md (doloop_end_split): Fix empty split condition.
6510
6511 2021-06-05  Kewen Lin  <linkw@linux.ibm.com>
6512
6513         * config/sparc/sparc.md (*snedi<W:mode>_zero_vis3,
6514         *neg_snedi<W:mode>_zero_subxc, *plus_snedi<W:mode>_zero,
6515         *plus_plus_snedi<W:mode>_zero, *minus_snedi<W:mode>_zero,
6516         *minus_minus_snedi<W:mode>_zero): Fix empty split condition.
6517
6518 2021-06-05  Kewen Lin  <linkw@linux.ibm.com>
6519
6520         * config/or1k/or1k.md (*movdi): Fix empty split condition.
6521
6522 2021-06-05  Kewen Lin  <linkw@linux.ibm.com>
6523
6524         * config/mips/mips.md (<anonymous>, bswapsi2, bswapdi2): Fix empty
6525         split condition.
6526
6527 2021-06-05  Kewen Lin  <linkw@linux.ibm.com>
6528
6529         * config/m68k/m68k.md (*zero_extend_inc, *zero_extend_dec,
6530         *zero_extendsidi2): Fix empty split condition.
6531
6532 2021-06-05  Jeff Law  <jeffreyalaw@gmail.com>
6533
6534         * config/h8300/addsub.md: Fix split condition in define_insn_and_split
6535         patterns.
6536         * config/h8300/bitfield.md: Likewise.
6537         * config/h8300/combiner.md: Likewise.
6538         * config/h8300/divmod.md: Likewise.
6539         * config/h8300/extensions.md: Likewise.
6540         * config/h8300/jumpcall.md: Likewise.
6541         * config/h8300/movepush.md: Likewise.
6542         * config/h8300/multiply.md: Likewise.
6543         * config/h8300/other.md: Likewise.
6544         * config/h8300/shiftrotate.md: Likewise.
6545         * config/h8300/logical.md: Likewise.  Fix split pattern to use
6546         code iterator that somehow slipped through.
6547
6548 2021-06-04  Tobias Burnus  <tobias@codesourcery.com>
6549
6550         PR middle-end/100905
6551         * tree-nested.c (convert_nonlocal_omp_clauses,
6552         convert_local_omp_clauses): Handle OMP_CLAUSE_BIND.
6553
6554 2021-06-04  Martin Sebor  <msebor@redhat.com>
6555
6556         PR middle-end/100732
6557         * gimple-fold.c (gimple_fold_builtin_sprintf): Avoid folding calls
6558         with either source or destination argument of invalid type.
6559         * tree-ssa-uninit.c (maybe_warn_pass_by_reference): Avoid checking
6560         calls with arguments of invalid type.
6561
6562 2021-06-04  Martin Sebor  <msebor@redhat.com>
6563
6564         * attribs.c (init_attr_rdwr_indices): Use VLA bounds in the expected
6565         order.
6566         (attr_access::vla_bounds): Also handle VLA bounds.
6567
6568 2021-06-04  Uroš Bizjak  <ubizjak@gmail.com>
6569
6570         * config/i386/predicates.md (GOT_memory_operand):
6571         Implement using match_code RTXes.
6572         (GOT32_symbol_operand): Ditto.
6573
6574 2021-06-04  Uroš Bizjak  <ubizjak@gmail.com>
6575
6576         PR target/100637
6577         * config/i386/i386-expand.c (ix86_expand_vector_init_duplicate):
6578         Handle V2HI mode.
6579         (ix86_expand_vector_init_general): Ditto.
6580         Use SImode instead of word_mode for logic operations
6581         when GET_MODE_SIZE (mode) < UNITS_PER_WORD.
6582         (expand_vec_perm_even_odd_1): Assert that V2HI mode should be
6583         implemented by expand_vec_perm_1.
6584         (expand_vec_perm_broadcast_1): Assert that V2HI and V4HI modes
6585         should be implemented using standard shuffle patterns.
6586         (ix86_vectorize_vec_perm_const): Handle V2HImode.  Add V4HI and
6587         V2HI modes to modes, implementable with shuffle for one operand.
6588         * config/i386/mmx.md (*punpckwd): New insn_and_split pattern.
6589         (*pshufw_1): New insn pattern.
6590         (*vec_dupv2hi): Ditto.
6591         (vec_initv2hihi): New expander.
6592
6593 2021-06-04  Kewen Lin  <linkw@linux.ibm.com>
6594
6595         * config/arm/vfp.md (no_literal_pool_df_immediate,
6596         no_literal_pool_sf_immediate): Fix empty split condition.
6597
6598 2021-06-04  Kewen Lin  <linkw@linux.ibm.com>
6599
6600         * config/i386/i386.md (*load_tp_x32_zext, *add_tp_x32_zext,
6601         *tls_dynamic_gnu2_combine_32): Fix empty split condition.
6602         * config/i386/sse.md (*<sse2_avx2>_pmovmskb_lt,
6603         *<sse2_avx2>_pmovmskb_zext_lt, *sse2_pmovmskb_ext_lt,
6604         *<sse4_1_avx2>_pblendvb_lt): Likewise.
6605
6606 2021-06-04  Jakub Jelinek  <jakub@redhat.com>
6607
6608         PR target/100887
6609         * config/i386/i386-expand.c (ix86_expand_vector_init): Handle
6610         concatenation from half-sized modes with TImode elements.
6611
6612 2021-06-04  Claudiu Zissulescu  <claziss@synopsys.com>
6613
6614         * config/arc/arc.c (arc_override_options): Disable millicode
6615         thunks when RF16 is on.
6616
6617 2021-06-04  Haochen Gui  <guihaoc@gcc.gnu.org>
6618
6619         * config/rs6000/rs6000.h (PROMOTE_MODE): Remove.
6620
6621 2021-06-04  Haochen Gui  <guihaoc@gcc.gnu.org>
6622
6623         * config/rs6000/rs6000-call.c (rs6000_promote_function_mode):
6624         Replace PROMOTE_MODE marco with its content.
6625
6626 2021-06-03  Kewen Lin  <linkw@linux.ibm.com>
6627
6628         * config/cris/cris.md (*addi_reload): Fix empty split condition.
6629
6630 2021-06-03  Jim Wilson  <jimw@sifive.com>
6631
6632         * config.gcc (riscv*-*-*): If --with-riscv-attribute not used,
6633         turn it on for all riscv targets.
6634
6635 2021-06-03  Uroš Bizjak  <ubizjak@gmail.com>
6636
6637         PR target/100637
6638         * config/i386/i386-expand.c (ix86_expand_vector_set):
6639         Handle V2HI and V4QI modes.
6640         (ix86_expand_vector_extract): Ditto.
6641         * config/i386/mmx.md (*pinsrw): New insn pattern.
6642         (*pinsrb): Ditto.
6643         (*pextrw): Ditto.
6644         (*pextrw_zext): Ditto.
6645         (*pextrb): Ditto.
6646         (*pextrb_zext): Ditto.
6647         (vec_setv2hi): New expander.
6648         (vec_extractv2hihi): Ditto.
6649         (vec_setv4qi): Ditto.
6650         (vec_extractv4qiqi): Ditto.
6651         (vec_setv8qi): Enable only for TARGET_SSE4_1.
6652         (vec_extractv8qiqi): Ditto.
6653
6654 2021-06-03  Aaron Sawdey  <acsawdey@linux.ibm.com>
6655
6656         * config/rs6000/genfusion.pl (gen_logical_addsubf): Fix input
6657         order to subf instruction.
6658         * config/rs6000/fusion.md: Regenerate.
6659
6660 2021-06-03  Aldy Hernandez  <aldyh@redhat.com>
6661
6662         * calls.c (get_size_range): Use range_of_expr instead of
6663         determine_value_range.
6664         * tree-affine.c (expr_to_aff_combination): Same.
6665         * tree-data-ref.c (split_constant_offset): Same.
6666         * tree-vrp.c (determine_value_range_1): Remove.
6667         (determine_value_range): Remove.
6668         * tree-vrp.h (determine_value_range): Remove.
6669
6670 2021-06-03  Aldy Hernandez  <aldyh@redhat.com>
6671
6672         * function-tests.c (test_ranges): Call gimple_range_tests.
6673         * gimple-range-cache.cc (ranger_cache::range_of_expr): Pass stmt
6674         to get_tree_range.
6675         * gimple-range.cc (fur_source::get_operand): Do not call
6676         get_tree_range or gimple_range_global.
6677         get_tree_range.
6678         (get_tree_range): Move to value-query.cc.
6679         Call get_arith_expr_range.
6680         (gimple_ranger::range_of_expr): Add argument to get_tree_range.
6681         Include gimple-range-tests.cc.
6682         * gimple-range.h (fold_range): Add argument.
6683         (get_tree_range): Remove.
6684         * selftest.h (gimple_range_tests): New.
6685         * value-query.cc (global_range_query::range_of_expr): Add
6686         stmt argument.
6687         (range_query::get_tree_range): Move from gimple-range.cc.
6688         * value-query.h (class range_query): Add get_tree_range and
6689         get_arith_expr_range.  Make fur_source a friend.
6690         * vr-values.c (vr_values::range_of_expr): Pass stmt to
6691         get_tree_range.
6692         * gimple-range-tests.cc: New file.
6693
6694 2021-06-03  Aldy Hernandez  <aldyh@redhat.com>
6695
6696         * gimple-range.cc (gimple_ranger::export_global_ranges): Call
6697           update_global_range.
6698         * value-query.cc (update_global_range): New.
6699         * value-query.h (update_global_range): New.
6700
6701 2021-06-03  David Malcolm  <dmalcolm@redhat.com>
6702
6703         * diagnostic-show-locus.c (diagnostic_show_locus): Don't reject
6704         printing the same location twice if there are fix-it hints,
6705         multiple locations, or a label.
6706
6707 2021-06-03  Andre Vieira  <andre.simoesdiasvieira@arm.com>
6708
6709         * tree-vect-loop.c (vect_transform_loop): Use main loop's various'
6710         thresholds to narrow the upper bound on epilogue iterations.
6711
6712 2021-06-03  Christophe Lyon  <christophe.lyon@linaro.org>
6713
6714         * config/arm/mve.md (mve_vabsq_f<mode>): Use 'abs' instead of unspec.
6715         (mve_vabsq_s<mode>): Likewise.
6716         * config/arm/neon.md (abs<mode>2): Rename to neon_abs<mode>2.
6717         * config/arm/unspecs.md (VABSQ_F, VABSQ_S): Delete.
6718         * config/arm/vec-common.md (neg<mode>2): Rename to
6719         <absneg_str><mode>2.
6720
6721 2021-06-03  Claudiu Zissulescu  <claziss@synopsys.com>
6722
6723         * common/config/arc/arc-common.c (arc_option_optimization_table):
6724         Remove malign-call.
6725         * config/arc/arc.c (arc_unalign_branch_p): Remove unused function.
6726         * config/arc/arc.h (TARGET_MIXED_CODE): Remove macro.
6727         (INDEX_REG_CLASS): Only refer to GENERAL_REGS.
6728         * config/arc/arc.md (abssi2_mixed): Remove pattern.
6729         * config/arc/arc.opt (munalign-prob-threshold): Mark it obsolete.
6730         (malign-call): Likewise.
6731         (mmixed-code): Likewise.
6732         * doc/invoke.texi (ARC): Update doc.
6733
6734 2021-06-03  Martin Liska  <mliska@suse.cz>
6735
6736         * common.opt: Use proper Enum values.
6737         * opts.c (COVERAGE_SANITIZER_OPT): Remove.
6738         (parse_sanitizer_options): Handle only sanitizer_opts.
6739         (common_handle_option): Just assign value.
6740
6741 2021-06-03  Eric Botcazou  <ebotcazou@adacore.com>
6742
6743         PR ipa/99122
6744         * tree-inline.c (inline_forbidden_p): Remove test on return type.
6745
6746 2021-06-03  Eric Botcazou  <ebotcazou@adacore.com>
6747
6748         * dwarf2out.c (loc_list_from_tree_1) <FUNCTION_DECL>: Also generate
6749         DW_OP_GNU_variable_value referencing an existing DIE at file scope.
6750         (type_byte_size): Inline into...
6751         (add_byte_size_attribute): ...this and call add_scalar_info.
6752
6753 2021-06-03  Eric Botcazou  <ebotcazou@adacore.com>
6754
6755         * dwarf2out.c (mem_loc_descriptor) <UDIV>: Fix typo.
6756         (typed_binop_from_tree): New function.
6757         (loc_list_from_tree_1) <EXACT_DIV_EXPR>: For an unsigned type,
6758         turn a divide by a power of 2 into a shift.
6759         <CEIL_DIV_EXPR>: For an unsigned type, use a signed divide if the
6760         size of the mode is lower than DWARF2_ADDR_SIZE; otherwise, do a
6761         typed divide by calling typed_binop_from_tree.
6762
6763 2021-06-03  Eric Botcazou  <ebotcazou@adacore.com>
6764
6765         * dwarf2out.c (scompare_loc_descriptor): Fix head comment.
6766         (is_handled_procedure_type): Likewise.
6767         (struct loc_descr_context): Add strict_signedness field.
6768         (resolve_args_picking_1): Deal with DW_OP_[GNU_]deref_type,
6769         DW_OP_[GNU_]convert and DW_OP_[GNU_]reinterpret.
6770         (resolve_args_picking): Minor tweak.
6771         (function_to_dwarf_procedure): Initialize strict_signedness field.
6772         (type_byte_size): Likewise.
6773         (field_byte_offset): Likewise.
6774         (gen_descr_array_type_die): Likewise.
6775         (gen_variant_part): Likewise.
6776         (loc_list_from_tree_1) <CALL_EXPR>: Tidy up and set strict_signedness
6777         to true when a context is present before evaluating the arguments.
6778         <COND_EXPR>: Do not generate a useless comparison with zero.
6779         When dereferencing an address, if strict_signedness is true and the
6780         type is small and signed, use DW_OP_deref_type to do the dereference
6781         and then DW_OP_convert to convert back to the generic type.
6782
6783 2021-06-03  Jakub Jelinek  <jakub@redhat.com>
6784
6785         PR c++/100859
6786         * tree-inline.c (copy_tree_body_r): Handle iterators on
6787         OMP_CLAUSE_AFFINITY or OMP_CLAUSE_DEPEND.
6788
6789 2021-06-03  Kewen Lin  <linkw@linux.ibm.com>
6790
6791         * config/arc/arc.md (*bbit_di): Remove.
6792
6793 2021-06-02  Christoph Muellner  <cmuellner@gcc.gnu.org>
6794
6795         PR rtl-optimization/100264
6796         * ree.c (get_sub_rtx): Ignore SET expressions without register
6797         destinations and remove assertion, as it is not valid anymore
6798         with this new behaviour.
6799         (merge_def_and_ext): Eliminate destination check for register
6800         as such SET expressions can't occur anymore.
6801         (combine_reaching_defs): Likewise.
6802
6803 2021-06-02  Jakub Jelinek  <jakub@redhat.com>
6804
6805         PR target/100841
6806         * config/xtensa/xtensa.h (LEAF_REG_REMAP): Cast REGNO to int to avoid
6807         -Wtype-limits warnings.
6808         (DWARF_FRAME_REGISTER): Rewrite into ternary operator with addition
6809         in operands to avoid -Wsign-compare warnings.
6810
6811 2021-06-02  Pat Haugen  <pthaugen@linux.ibm.com>
6812
6813         * config/rs6000/rs6000-logue.c (rs6000_emit_prologue): Use
6814         gen_frame_store.
6815
6816 2021-06-02  Vineet Gupta  <vgupta@synopsys.com>
6817
6818         * config/arc/arc.h (TARGET_CPU_DEFAULT): Change to hs38_linux.
6819
6820 2021-06-02  Ilya Leoshkevich  <iii@linux.ibm.com>
6821
6822         * config/s390/s390.md(*ashrdi3_31<setcc><cconly>): Use a single
6823         constraint.
6824         * config/s390/subst.md(cconly_subst): Use a single constraint
6825         in (match_scratch).
6826
6827 2021-06-02  Martin Liska  <mliska@suse.cz>
6828
6829         * ipa-icf.h: Use auto_vec for memory_access_types.
6830
6831 2021-06-02  Jeff Law  <jeffreyalaw@gmail.com>
6832
6833         * config/h8300/h8300-protos.h (compute_a_shift_length): Drop unused
6834         argument from prototype.
6835         (output_logical_op): Add rtx_code argument.
6836         (compute_logical_op_length): Likewise.
6837         * config/h8300/h8300.c (h8300_and_costs): Pass additional argument
6838         to compute_a_shift_length.
6839         (output_logical_op); New argument with the rtx code rather than
6840         extracting it from an operand.  Handle QImode too.
6841         (compute_logical_op_length): Similary.
6842         (compute_a_shift_length): Drop unused argument.
6843         * config/h8300/h8300.md (logicals): New code iterator.
6844         * config/h8300/logical.md (<code><mode>3 expander): Combine
6845         the "and" expander with the "ior"/"xor" expander.
6846         (bclr<mode>msx): Combine the QI/HI mode patterns.
6847         (<logical><mode>3 insns): Use code iterator rather than match_operator.
6848         Handle QImode as well.   Update call to output_logical_op and
6849         compute_logical_op_length to pass in rtx_code
6850         Fix split condition on all define_insn_and_split patterns.
6851         (one_cmpl<mode>2<cczn>): Use <cczn> to support both clobbering
6852         the flags and setting ZN via existing define_subst.
6853         * config/h8300/shiftrotate.md: Drop unused argument from
6854         calls to compute_a_shift_length.
6855         Signed-off-by: Jeff Law <jeffreyalaw@gmail.com>
6856
6857 2021-06-01  Andrew Pinski  <apinski@marvell.com>
6858
6859         PR tree-optimization/25290
6860         * tree-ssa-phiopt.c (match_simplify_replacement):
6861         New function.
6862         (tree_ssa_phiopt_worker): Use match_simplify_replacement.
6863         (two_value_replacement): Change the comment about
6864         conditional_replacement.
6865         (conditional_replacement): Delete.
6866
6867 2021-06-01  Andrew Pinski  <apinski@marvell.com>
6868
6869         PR tree-optimization/95481
6870         * tree-tailcall.c (find_tail_calls): Handle empty typed
6871         return decls.
6872
6873 2021-06-01  Andrew Pinski  <apinski@marvell.com>
6874
6875         * gimplify.c (zero_sized_field_decl): Delete
6876         (zero_sized_type): Delete
6877         (gimplify_init_ctor_eval): Use is_empty_type instead
6878         of zero_sized_field_decl.
6879         (gimplify_modify_expr): Use is_empty_type instead of
6880         zero_sized_type.
6881
6882 2021-06-01  Jason Merrill  <jason@redhat.com>
6883
6884         PR c++/91859
6885         * tree.h (CALL_FROM_NEW_OR_DELETE_P): Adjust comment.
6886
6887 2021-06-01  Jason Merrill  <jason@redhat.com>
6888
6889         PR c++/94492
6890         * diagnostic.h (warning_enabled_at): Declare.
6891         * diagnostic.c (diagnostic_enabled): Factor out from...
6892         (diagnostic_report_diagnostic): ...here.
6893         (warning_enabled_at): New.
6894
6895 2021-06-01  Aldy Hernandez  <aldyh@redhat.com>
6896
6897         * gimple-ssa-evrp.c: Enable exporting of global ranges.
6898
6899 2021-06-01  Martin Liska  <mliska@suse.cz>
6900
6901         PR other/100826
6902         * doc/invoke.texi: Mention that -fgcse-after-reload
6903         is enabled with -O3.
6904
6905 2021-06-01  liuhongt  <hongtao.liu@intel.com>
6906
6907         PR tree-optimization/98365
6908         * tree-if-conv.c (strip_nop_cond_scalar_reduction): New function.
6909         (is_cond_scalar_reduction): Handle nop_expr in cond scalar reduction.
6910         (convert_scalar_cond_reduction): Ditto.
6911         (predicate_scalar_phi): Ditto.
6912
6913 2021-06-01  Andrew MacLeod  <amacleod@redhat.com>
6914
6915         PR tree-optimization/100781
6916         * gimple-range-cache.cc (ranger_cache::ranger_cache): Enable new
6917         value calculation by default.
6918         (ranger_cache::enable_new_values): New.
6919         (ranger_cache::disable_new_values): New.
6920         (ranger_cache::push_poor_value): Check if new values are allowed.
6921         * gimple-range-cache.h (class ranger_cache): New member/methods.
6922         * gimple-range.cc (gimple_ranger::range_of_expr): Check for debug
6923         statement, and disable/renable new value calculation.
6924
6925 2021-06-01  Andrew MacLeod  <amacleod@redhat.com>
6926
6927         * gimple-range-cache.cc (ranger_cache::ssa_range_in_bb): Delete.
6928         (ranger_cache::range_of_def): New.
6929         (ranger_cache::entry_range): New.
6930         (ranger_cache::exit_range): New.
6931         (ranger_cache::range_of_expr): Adjust.
6932         (ranger_cache::range_on_edge): Adjust.
6933         (ranger_cache::propagate_cache): Call exit_range directly.
6934         * gimple-range-cache.h (class ranger_cache): Adjust.
6935
6936 2021-06-01  Andrew MacLeod  <amacleod@redhat.com>
6937
6938         * gimple-range-cache.cc (ranger_cache::ranger_cache): Adjust for
6939         gori_compute being a member rather than base class.
6940         dervied call to member call.
6941         (ranger_cache::dump): No longer dump gori_map.
6942         (ranger_cache::dump_bb): New.
6943         (ranger_cache::get_non_stale_global_range): Adjust for gori_compute
6944         being a member rather than base class.
6945         (ranger_cache::set_global_range): Ditto.
6946         (ranger_cache::ssa_range_in_bb): Ditto.
6947         (ranger_cache::range_of_expr): New.
6948         (ranger_cache::range_on_edge): New.
6949         (ranger_cache::block_range): Adjust for gori_computes.  Debug changes.
6950         (ranger_cache::propagate_cache):  Adjust debugging output.
6951         (ranger_cache::fill_block_cache): Adjust for gori_computes.  Debug
6952         output changes.
6953         * gimple-range-cache.h (class ranger_cache): Make gori_compute a
6954         member, and inherit from range_query instead.
6955         (ranger_cache::dump_bb): New. split from dump.
6956         * gimple-range-gori.cc (gori_compute::ssa_range_in_bb): Delete.
6957         (gori_compute::expr_range_at_stmt): Delete.
6958         (gori_compute::compute_name_range_op): Delete.
6959         (gori_compute::compute_operand_range_switch): Add fur_source.
6960         (gori_compute::compute_operand_range): Add fur_source param, inline
6961         old compute_name_range_op and optimize_logical_operands.
6962         (struct tf_range): Delete.
6963         (gori_compute::logical_combine): Adjust
6964         (gori_compute::optimize_logical_operands): Delete.
6965         (gori_compute::compute_logical_operands_in_chain): Delete.
6966         (gori_compute::compute_logical_operands): Adjust.
6967         (gori_compute::compute_operand1_range): Adjust to fur_source.
6968         (gori_compute::compute_operand2_range): Ditto.
6969         (gori_compute::compute_operand1_and_operand2_range): Ditto.
6970         (gori_compute::outgoing_edge_range_p): Add range_query parameter,
6971         and adjust to fur_source.
6972         * gimple-range-gori.h (class gori_compute): Simplify and adjust to
6973         range_query and fur_source.
6974         * gimple-range.cc (gimple_ranger::range_on_edge): Query range_on_edge
6975         from the ranger_cache..
6976         (gimple_ranger::fold_range_internal): Adjust to base class change of
6977         ranger_cache.
6978         (gimple_ranger::dump_bb): Adjust dump.
6979         * gimple-range.h (gimple_ranger):export gori computes object.
6980
6981 2021-06-01  Andrew MacLeod  <amacleod@redhat.com>
6982
6983         PR tree-optimization/100774
6984         * gimple-range-cache.cc (ranger_cache::get_non_stale_global_range):
6985         Constant values are also not stale.
6986         (ranger_cache::set_global_range): Range invariant values should also
6987         have the correct timestamp.
6988
6989 2021-05-31  Martin Liska  <mliska@suse.cz>
6990
6991         * tree-streamer-in.c (unpack_ts_function_decl_value_fields):
6992         Unpack FUNCTION_DECL_DECL_TYPE.
6993         * tree-streamer-out.c (pack_ts_function_decl_value_fields):
6994         Stream FUNCTION_DECL_DECL_TYPE instead of
6995         DECL_IS_OPERATOR_NEW_P.
6996         * tree.h (set_function_decl_type): Use FUNCTION_DECL_DECL_TYPE
6997         macro.
6998         (DECL_IS_OPERATOR_NEW_P): Likewise.
6999         (DECL_IS_OPERATOR_DELETE_P): Likewise.
7000         (DECL_LAMBDA_FUNCTION_P): Likewise.
7001
7002 2021-05-31  Richard Biener  <rguenther@suse.de>
7003
7004         PR c++/88601
7005         * internal-fn.c (expand_SHUFFLEVECTOR): Define.
7006         * internal-fn.def (SHUFFLEVECTOR): New.
7007         * internal-fn.h (expand_SHUFFLEVECTOR): Declare.
7008         * doc/extend.texi: Document __builtin_shufflevector.
7009
7010 2021-05-31  Peter Bergner  <bergner@linux.ibm.com>
7011
7012         PR target/99842
7013         * config/rs6000/predicates.md(mma_assemble_input_operand): Allow
7014         indexed form addresses.
7015
7016 2021-05-29  Jeff Law  <jlaw@tachyum.com>
7017
7018         * config/h8300/h8300.c (h8300_emit_stack_adjustment): Drop unused
7019         parameter.  Call callers fixed.
7020         (push): Likewise.
7021         (output_plussi): Add FALLTHRU markers.
7022         (h8300_shift_needs_scratch_p): Add gcc_unreachable marker.
7023
7024 2021-05-29  Jakub Jelinek  <jakub@redhat.com>
7025
7026         PR middle-end/99928
7027         * gimplify.c (gimplify_scan_omp_clauses): For taskloop simd
7028         combined with parallel, make sure to add shared clause to
7029         parallel for explicit linear clause.
7030
7031 2021-05-29  Aldy Hernandez  <aldyh@redhat.com>
7032
7033         PR tree-optimization/100787
7034         * gimple-ssa-evrp.c: Disable exporting of global ranges.
7035
7036 2021-05-28  Jason Merrill  <jason@redhat.com>
7037
7038         * tree-iterator.h (struct tree_stmt_iterator): Add operator++,
7039         operator--, operator*, operator==, and operator!=.
7040         (class tsi_range): New.
7041
7042 2021-05-28  Richard Biener  <rguenther@suse.de>
7043
7044         PR tree-optimization/100778
7045         * tree-vect-slp.c (vect_build_slp_tree_1): Prevent possibly
7046         trapping ops in different BBs.
7047
7048 2021-05-28  Richard Biener  <rguenther@suse.de>
7049
7050         PR ipa/100791
7051         * tree-inline.c (copy_bb): When processing __builtin_va_arg_pack
7052         copy fntype from original call.
7053
7054 2021-05-28  Martin Liska  <mliska@suse.cz>
7055
7056         PR gcov-profile/100751
7057         * doc/gcov.texi: Revert partially a hunk that was wrong.
7058
7059 2021-05-28  Cooper Qu  <cooper.qu@linux.alibaba.com>
7060
7061         * config/csky/csky-linux-elf.h (HAVE_sync_compare_and_swapqi):
7062         Defined.
7063         (HAVE_sync_compare_and_swaphi): Likewise.
7064         (HAVE_sync_compare_and_swapsi): Likewise.
7065
7066 2021-05-28  Jakub Jelinek  <jakub@redhat.com>
7067
7068         PR middle-end/99928
7069         * tree.h (OMP_CLAUSE_MAP_IMPLICIT): Define.
7070
7071 2021-05-28  Tobias Burnus  <tobias@codesourcery.com>
7072
7073         * gimplify.c (gimplify_omp_affinity): New.
7074         (gimplify_scan_omp_clauses): Call it; remove affinity clause afterwards.
7075         * tree-core.h (enum omp_clause_code): Add OMP_CLAUSE_AFFINITY.
7076         * tree-pretty-print.c (dump_omp_clause): Handle OMP_CLAUSE_AFFINITY.
7077         * tree.c (omp_clause_num_ops, omp_clause_code_name): Add clause.
7078         (walk_tree_1): Handle OMP_CLAUSE_AFFINITY.
7079
7080 2021-05-28  Joern Rennecke  <joern.rennecke@riscy-ip.com>
7081             Richard Biener   <rguenther@suse.de>
7082
7083         * match.pd <popcount & / + pattern matching>:
7084         When generating popcount directly fails, try doing it in two halves.
7085
7086 2021-05-28  Bernd Edlinger  <bernd.edlinger@hotmail.de>
7087
7088         * Makefile.in (generated_files): Add gimple-match.c and
7089         generic-match.c
7090
7091 2021-05-28  Joern Rennecke  <joern.rennecke@embecosm.com>
7092
7093         * gensupport.c (alter_predicate_for_insn): Handle MATCH_DUP.
7094
7095 2021-05-28  Joern Rennecke  <joern.rennecke@embecosm.com>
7096
7097         * gensupport.c (alter_constraints): Add MATCH_SCRATCH case.
7098
7099 2021-05-28  Kewen Lin  <linkw@linux.ibm.com>
7100
7101         PR tree-optimization/99398
7102         * tree-ssa-forwprop.c (simplify_permutation): Optimize some cases
7103         where the fed operands are CTOR/CST and propagated through
7104         VIEW_CONVERT_EXPR.  Call vec_perm_indices::new_shrunk_vector.
7105         * vec-perm-indices.c (vec_perm_indices::new_shrunk_vector): New
7106         function.
7107         * vec-perm-indices.h (vec_perm_indices::new_shrunk_vector): New
7108         declare.
7109
7110 2021-05-27  Uroš Bizjak  <ubizjak@gmail.com>
7111
7112         * config/i386/mmx.md (addv2sf3): Do not call
7113         ix86_fixup_binary_operands_no_copy.
7114         (subv2sf3): Ditto.
7115         (mulv2sf3): Ditto.
7116         (<smaxmin:code>v2sf3): Ditto.
7117         (<plusminus:insn><MMXMODEI:mode>3): Ditto.
7118         (<plusminus:insn><VI_32:mode>3): Remove expander.
7119         (<plusminus:insn><VI_32:mode>3): Rename from
7120         "*<plusminus:insn><VI_32:mode>3".
7121         (mulv4hi): Do not call ix86_fixup_binary_operands_no_copy.
7122         (mulv2hi3): Remove expander.
7123         (mulv2hi3): Rename from *mulv2hi3.
7124         (<s>mulv2hi3_highpart): Remove expander.
7125         (<s>mulv2hi3_highpart): Rename from *<s>mulv2hi3_highpart.
7126         (<smaxmin:code><MMXMODE14:mode>3): Rename from
7127         "*mmx_<smaxmin:code><MMXMODE14:mode>3".
7128         (<smaxmin:code><SMAXMIN_MMXMODEI:mode>3): Remove expander.
7129         (SMAXMIN_MMXMODEI): Remove mode iterator.
7130         (<smaxmin:code>v4hi3): New expander.
7131         (<smaxmin:code>v4qi3): Rename from *<smaxmin:code>v4qi3.
7132         (<smaxmin:code>v2hi3): Rename from *<smaxmin:code>v2hi3.
7133         (<smaxmin:code><SMAXMIN_VI_32:mode>3): Remove expander.
7134         (SMAXMIN_VI_32): Remove mode iterator.
7135         (<umaxmin:code><MMXMODE24:mode>3): Rename from
7136         "*mmx_<umaxmin:code><MMXMODE24:mode>3".
7137         (<umaxmin:code><UMAXMIN_MMXMODEI:mode>3): Remove expander.
7138         (UMAXMIN_MMXMODEI): Remove mode iterator.
7139         (<umaxmin:code>v8qi3): New expander.
7140         (<umaxmin:code>v4qi3): Rename from *<umaxmin:code>v4qi3.
7141         (<umaxmin:code>v2hi3): Rename from *<umaxmin:code>v2hi3.
7142         (<umaxmin:code><SMAXMIN_VI_32:mode>3): Remove expander.
7143         (UMAXMIN_VI_32): Remove mode iterator.
7144         (<any_shift:insn>v2hi3): Remove expander.
7145         (<any_shift:insn>v2hi3): Rename from *<any_shift:insn>v2hi3.
7146         (<any_logic:code><MMXMODEI:mode>3): Do not call
7147         ix86_fixup_binary_operands_no_copy.
7148         (<any_logic:code><VI_32:mode>3): Remove expander.
7149         (<any_logic:code><VI_32:mode>3): Rename from
7150         "*<any_logic:code><VI_32:mode>3".
7151         (uavg<mode>3_ceil): Do not call ix86_fixup_binary_operands_no_copy.
7152         * config/i386/sse.md (div<VF2:mode>3): Do not call
7153         ix86_fixup_binary_operands_no_copy.
7154         (div<VF1:mode>3): Ditto.
7155         (<maxmin:code><VI8_AVX2_AVX512F:mode>3): Ditto.
7156         (smulhrsv4hi3): Ditto.
7157         (smulhrsv2hi3): Ditto.
7158
7159 2021-05-27  Martin Sebor  <msebor@redhat.com>
7160
7161         * ggc.h (gt_ggc_mx): Add overloads for all integers.
7162         (gt_pch_nx):  Same.
7163         * hash-map.h (class hash_map): Add pch_nx_helper overloads for all
7164         integers.
7165         (hash_map::operator==): New function.
7166
7167 2021-05-27  Uroš Bizjak  <ubizjak@gmail.com>
7168
7169         PR target/100637
7170         * config/i386/i386-expand.c (ix86_expand_int_sse_cmp):
7171         For TARGET_XOP bypass SSE comparisons for all supported vector modes.
7172         * config/i386/mmx.md (*xop_maskcmp<MMXMODEI:mode>3): New insn pattern.
7173         (*xop_maskcmp<VI_32:mode>3): Ditto.
7174         (*xop_maskcmp_uns<MMXMODEI:mode>3): Ditto.
7175         (*xop_maskcmp_uns<VI_32:mode>3): Ditto.
7176
7177 2021-05-27  Richard Earnshaw  <rearnsha@arm.com>
7178
7179         PR target/100767
7180         * config/arm/arm.c (arm_configure_build_target): Remove parameter
7181         opts_set, directly check opts parameters for being non-null.
7182         (arm_option_restore): Update call to arm_configure_build_target.
7183         (arm_option_override): Likewise.
7184         (arm_can_inline_p): Likewise.
7185         (arm_valid_target_attribute_tree): Likewise.
7186         * config/arm/arm-c.c (arm_pragma_target_parse): Likewise.
7187         * config/arm/arm-protos.h (arm_configure_build_target): Adjust
7188         prototype.
7189
7190 2021-05-27  Aldy Hernandez  <aldyh@redhat.com>
7191
7192         * vr-values.c (simplify_conversion_using_ranges): Use
7193         get_range_query instead of get_global_range_query.
7194
7195 2021-05-27  Aldy Hernandez  <aldyh@redhat.com>
7196
7197         * gimple-range.cc (get_range_global): Move to value-query.cc.
7198         (gimple_range_global): Same.
7199         (get_global_range_query): Same.
7200         (global_range_query::range_of_expr): Same.
7201         * gimple-range.h (class global_range_query): Move to
7202         value-query.h.
7203         (gimple_range_global): Same.
7204         * tree-ssanames.c (get_range_info): Move to value-query.cc.
7205         (get_ptr_nonnull): Same.
7206         * tree-ssanames.h (get_range_info): Remove.
7207         (get_ptr_nonnull): Remove.
7208         * value-query.cc (get_ssa_name_range_info): Move from
7209         tree-ssanames.c.
7210         (get_ssa_name_ptr_info_nonnull): Same.
7211         (get_range_global): Move from gimple-range.cc.
7212         (gimple_range_global): Same.
7213         (get_global_range_query): Same.
7214         (global_range_query::range_of_expr): Same.
7215         * value-query.h (class global_range_query): Move from
7216         gimple-range.h.
7217         (gimple_range_global): Same.
7218
7219 2021-05-27  Uroš Bizjak  <ubizjak@gmail.com>
7220
7221         PR target/100637
7222         * config/i386/mmx.md (uavgv4qi3_ceil): New insn pattern.
7223         (uavgv2hi3_ceil): Ditto.
7224
7225 2021-05-26  Eric Botcazou  <ebotcazou@adacore.com>
7226
7227         PR c/100653
7228         * doc/extend.texi (scalar_storage_order): Rephrase slightly.
7229
7230 2021-05-26  Aldy Hernandez  <aldyh@redhat.com>
7231
7232         * tree-ssanames.c (get_range_info): Merge both copies of
7233         get_range_info into one that works with irange.
7234         * tree-ssanames.h (get_range_info): Remove version that works on
7235         wide_ints.
7236
7237 2021-05-26  Aldy Hernandez  <aldyh@redhat.com>
7238
7239         * builtins.c (check_nul_terminated_array): Convert to get_range_query.
7240         (expand_builtin_strnlen): Same.
7241         (determine_block_size): Same.
7242         * fold-const.c (expr_not_equal_to): Same.
7243         * gimple-fold.c (size_must_be_zero_p): Same.
7244         * gimple-match-head.c: Include gimple-range.h.
7245         * gimple-pretty-print.c (dump_ssaname_info): Convert to get_range_query.
7246         * gimple-ssa-warn-restrict.c
7247         (builtin_memref::extend_offset_range): Same.
7248         * graphite-sese-to-poly.c (add_param_constraints): Same.
7249         * internal-fn.c (get_min_precision): Same.
7250         * ipa-fnsummary.c (set_switch_stmt_execution_predicate): Same.
7251         * ipa-prop.c (ipa_compute_jump_functions_for_edge): Same.
7252         * match.pd: Same.
7253         * tree-data-ref.c (split_constant_offset): Same.
7254         (dr_step_indicator): Same.
7255         * tree-dfa.c (get_ref_base_and_extent): Same.
7256         * tree-scalar-evolution.c (iv_can_overflow_p): Same.
7257         * tree-ssa-loop-niter.c (refine_value_range_using_guard): Same.
7258         (determine_value_range): Same.
7259         (record_nonwrapping_iv): Same.
7260         (infer_loop_bounds_from_signedness): Same.
7261         (scev_var_range_cant_overflow): Same.
7262         * tree-ssa-phiopt.c (two_value_replacement): Same.
7263         * tree-ssa-pre.c (insert_into_preds_of_block): Same.
7264         * tree-ssa-reassoc.c (optimize_range_tests_to_bit_test): Same.
7265         * tree-ssa-strlen.c (handle_builtin_stxncpy_strncat): Same.
7266         (get_range): Same.
7267         (dump_strlen_info): Same.
7268         (set_strlen_range): Same.
7269         (maybe_diag_stxncpy_trunc): Same.
7270         (get_len_or_size): Same.
7271         (handle_integral_assign): Same.
7272         * tree-ssa-structalias.c (find_what_p_points_to): Same.
7273         * tree-ssa-uninit.c (find_var_cmp_const): Same.
7274         * tree-switch-conversion.c (bit_test_cluster::emit): Same.
7275         * tree-vect-patterns.c (vect_get_range_info): Same.
7276         (vect_recog_divmod_pattern): Same.
7277         * tree-vrp.c (intersect_range_with_nonzero_bits): Same.
7278         (register_edge_assert_for_2): Same.
7279         (determine_value_range_1): Same.
7280         * tree.c (get_range_pos_neg): Same.
7281         * vr-values.c (vr_values::get_lattice_entry): Same.
7282         (vr_values::update_value_range): Same.
7283         (simplify_conversion_using_ranges): Same.
7284
7285 2021-05-26  Aldy Hernandez  <aldyh@redhat.com>
7286
7287         * gimple-ssa-warn-alloca.c (alloca_call_type): Use
7288           get_range_query instead of query argument.
7289         (pass_walloca::execute): Enable and disable global ranger.
7290
7291 2021-05-26  Aldy Hernandez  <aldyh@redhat.com>
7292
7293         * gimple-ssa-evrp.c (rvrp_folder::rvrp_folder): Call
7294         enable_ranger.
7295         (rvrp_folder::~rvrp_folder): Call disable_ranger.
7296         (hybrid_folder::hybrid_folder): Call enable_ranger.
7297         (hybrid_folder::~hybrid_folder): Call disable_ranger.
7298
7299 2021-05-26  Aldy Hernandez  <aldyh@redhat.com>
7300
7301         * function.c (allocate_struct_function): Set cfun->x_range_query.
7302         * function.h (struct function): Declare x_range_query.
7303         (get_range_query): New.
7304         (get_global_range_query): New.
7305         * gimple-range-cache.cc (ssa_global_cache::ssa_global_cache):
7306         Remove call to safe_grow_cleared.
7307         * gimple-range.cc (get_range_global): New.
7308         (gimple_range_global): Move from gimple-range.h.
7309         (get_global_range_query): New.
7310         (global_range_query::range_of_expr): New.
7311         (enable_ranger): New.
7312         (disable_ranger): New.
7313         * gimple-range.h (gimple_range_global): Move to gimple-range.cc.
7314         (class global_range_query): New.
7315         (enable_ranger): New.
7316         (disable_ranger): New.
7317         * gimple-ssa-evrp.c (evrp_folder::~evrp_folder): Rename
7318         dump_all_value_ranges to dump.
7319         * tree-vrp.c (vrp_prop::finalize): Same.
7320         * value-query.cc (range_query::dump): New.
7321         * value-query.h (range_query::dump): New.
7322         * vr-values.c (vr_values::dump_all_value_ranges): Rename to...
7323         (vr_values::dump): ...this.
7324         * vr-values.h (class vr_values): Rename dump_all_value_ranges to
7325         dump and make virtual.
7326
7327 2021-05-26  Uroš Bizjak  <ubizjak@gmail.com>
7328
7329         * config/i386/i386.c (ix86_autovectorize_vector_modes):
7330         Add V4QImode and V16QImode for TARGET_SSE2.
7331         * doc/sourcebuild.texi (Vector-specific attributes):
7332         Add vect64 and vect32 description.
7333
7334 2021-05-26  Bernd Edlinger  <bernd.edlinger@hotmail.de>
7335
7336         * gimple-range-gori.cc (range_def_chain::register_dependency):
7337         Resize m_def_chain when needed.
7338
7339 2021-05-26  Christophe Lyon  <christophe.lyon@linaro.org>
7340
7341         * config/arm/mve.md (mve_vaddvq_<supf><mode>): Prefix with '@'.
7342         * config/arm/neon.md (reduc_plus_scal_<mode>): Move to ..
7343         * config/arm/vec-common.md: .. here. Add support for MVE.
7344
7345 2021-05-26  Jakub Jelinek  <jakub@redhat.com>
7346
7347         * config/epiphany/epiphany.c (epiphany_print_operand_address): Remove
7348         register keywords.
7349         * config/microblaze/microblaze.c (microblaze_legitimize_address,
7350         call_internal1,
7351         microblaze_option_override, print_operand): Likewise.
7352         * config/microblaze/microblaze.md (call_internal_plt,
7353         call_value_intern_plt, call_value_intern): Likewise.
7354         * config/arm/aout.h (ASM_OUTPUT_ALIGN): Likewise.
7355         * config/iq2000/iq2000.md (call_internal1, call_value_internal1,
7356         call_value_multiple_internal1): Likewise.
7357         * config/bfin/bfin.c (symbolic_reference_mentioned_p): Likewise.
7358
7359 2021-05-26  Jan-Benedict Glaw  <jbglaw@lug-owl.de>
7360
7361         * config/arc/arc.c (arc_address_cost, arc_print_operand_address,
7362         arc_ccfsm_advance, symbolic_reference_mentioned_p,
7363         arc_raw_symbolic_reference_mentioned_p): Remove register
7364         keyword.
7365
7366 2021-05-26  Jakub Jelinek  <jakub@redhat.com>
7367
7368         PR libgomp/100573
7369         * omp-low.c: Include omp-offload.h.
7370         (create_omp_child_function): If current_function_decl has
7371         "omp declare target" attribute and is_gimple_omp_offloaded,
7372         remove that attribute from the copy of attribute list and
7373         add "omp target entrypoint" attribute instead.
7374         (lower_omp_target): Mark .omp_data_sizes.* and .omp_data_kinds.*
7375         variables for offloading if in omp_maybe_offloaded_ctx.
7376         * omp-offload.c (pass_omp_target_link::execute): Nullify second
7377         argument to GOMP_target_data_ext in offloaded code.
7378
7379 2021-05-26  Geng Qi  <gengqi@linux.alibaba.com>
7380
7381         * config/csky/csky.c (csky_can_change_mode_class): Delete.
7382         For csky, HF/SF mode use the low bits of VREGS.
7383
7384 2021-05-26  Eric Botcazou  <ebotcazou@adacore.com>
7385
7386         * gimplify.c (gimplify_decl_expr): Do not clear TREE_READONLY on a
7387         DECL which is a reference for OMP.
7388
7389 2021-05-26  Martin Liska  <mliska@suse.cz>
7390
7391         PR gcov-profile/100751
7392         * doc/gcov.texi: Document that __gcov_dump can be called just
7393         once and that __gcov_reset resets run-time counters.
7394
7395 2021-05-26  Martin Liska  <mliska@suse.cz>
7396
7397         * doc/install.texi: Port relevant part from install-old.texi
7398         and re-generate list of CPUs and systems.
7399
7400 2021-05-26  Martin Liska  <mliska@suse.cz>
7401
7402         * Makefile.in: Remove it.
7403         * doc/include/fdl.texi: Update next/previous chapters.
7404         * doc/install.texi: Likewise.
7405         * doc/install-old.texi: Removed.
7406
7407 2021-05-26  Geng Qi  <gengqi@linux.alibaba.com>
7408
7409         * config/csky/csky.c (ck810_legitimate_index_p): Support
7410         "base + index" with DF mode.
7411         * config/csky/constraints.md ("Y"): New constraint for memory operands
7412         without index register.
7413         * config/csky/csky_insn_fpuv2.md (fpuv3_movdf): Use "Y" instead of "m"
7414         when mov between memory and general registers, and lower their priority.
7415         * config/csky/csky_insn_fpuv3.md (fpuv2_movdf): Likewise.
7416
7417 2021-05-26  Geng Qi  <gengqi@linux.alibaba.com>
7418
7419         * config/csky/csky.c (TARGET_PROMOTE_PROTOTYPES): Delete.
7420
7421 2021-05-26  Geng Qi  <gengqi@linux.alibaba.com>
7422
7423         * config/csky/csky.md (untyped_call): Emit clobber for return
7424         registers to mark them used.
7425
7426 2021-05-26  Geng Qi  <gengqi@linux.alibaba.com>
7427
7428         * config/csky/csky.md (cskyv2_sextend_ldbs): New.
7429
7430 2021-05-26  Andrew Pinski  <apinski@marvell.com>
7431
7432         * match.pd (x < 0 ? ~y : y): New patterns.
7433
7434 2021-05-26  Andrew Pinski  <apinski@marvell.com>
7435
7436         * match.pd (A?CST1:CST2): Add simplifcations for A?0:+-1, A?+-1:0,
7437         A?POW2:0 and A?0:POW2.
7438
7439 2021-05-25  Andrew MacLeod  <amacleod@redhat.com>
7440
7441         * gimple-range-gori.cc (class logical_stmt_cache): Delete
7442         (logical_stmt_cache::logical_stmt_cache ): Delete.
7443         (logical_stmt_cache::~logical_stmt_cache): Delete.
7444         (logical_stmt_cache::cache_entry::dump): Delete.
7445         (logical_stmt_cache::get_range): Delete.
7446         (logical_stmt_cache::cached_name ): Delete.
7447         (logical_stmt_cache::same_cached_name): Delete.
7448         (logical_stmt_cache::cacheable_p): Delete.
7449         (logical_stmt_cache::slot_diagnostics ): Delete.
7450         (logical_stmt_cache::dump): Delete.
7451         (gori_compute_cache::gori_compute_cache): Delete.
7452         (gori_compute_cache::~gori_compute_cache): Delete.
7453         (gori_compute_cache::compute_operand_range): Delete.
7454         (gori_compute_cache::cache_stmt): Delete.
7455         * gimple-range-gori.h (gori_compute::compute_operand_range): Remove
7456         virtual.
7457         (class gori_compute_cache): Delete.
7458
7459 2021-05-25  Andrew MacLeod  <amacleod@redhat.com>
7460
7461         * gimple-range.cc (fold_using_range::range_of_range_op): Use m_gori
7462         intead of m_cache.
7463         (fold_using_range::range_of_address): Adjust.
7464         (fold_using_range::range_of_phi): Adjust.
7465         * gimple-range.h (class fur_source): Adjust.
7466         (fur_source::fur_source): Adjust.
7467
7468 2021-05-25  Andrew MacLeod  <amacleod@redhat.com>
7469
7470         * gimple-range-gori.cc (gori_compute::expr_range_at_stmt): Rename
7471         from expr_range_in_bb and adjust.
7472         (gori_compute::compute_name_range_op): Adjust.
7473         (gori_compute::optimize_logical_operands): Adjust.
7474         (gori_compute::compute_logical_operands_in_chain): Adjust.
7475         (gori_compute::compute_operand1_range): Adjust.
7476         (gori_compute::compute_operand2_range): Adjust.
7477         (ori_compute_cache::cache_stmt): Adjust.
7478         * gimple-range-gori.h (gori_compute): Rename prototype.
7479
7480 2021-05-25  Andrew MacLeod  <amacleod@redhat.com>
7481
7482         * gimple-range.cc (gimple_ranger::range_of_expr): Non-null should be
7483         checked only after range_of_stmt, not range_on_entry.
7484         (gimple_ranger::range_on_entry): Check for non-null in any
7485         predecessor block, if it is not already non-null.
7486         (gimple_ranger::range_on_exit): DOnt check for non-null after
7487         range on entry call.
7488         (gimple_ranger::dump_bb): New.  Split from dump.
7489         (gimple_ranger::dump): Adjust.
7490         * gimple-range.h (class gimple_ranger): Adjust.
7491
7492 2021-05-25  Andrew MacLeod  <amacleod@redhat.com>
7493
7494         * gimple-range-cache.cc (struct range_timestamp): Delete.
7495         (class temporal_cache): Adjust.
7496         (temporal_cache::get_timestamp): Delete.
7497         (temporal_cache::set_dependency): Delete.
7498         (temporal_cache::temporal_value): Adjust.
7499         (temporal_cache::current_p): Take dependencies as params.
7500         (temporal_cache::set_timestamp): Adjust.
7501         (temporal_cache::set_always_current): Adjust.
7502         (ranger_cache::get_non_stale_global_range): Adjust.
7503         (ranger_cache::register_dependency): Delete.
7504         * gimple-range-cache.h (class range_cache): Adjust.
7505
7506 2021-05-25  Andrew MacLeod  <amacleod@redhat.com>
7507
7508         * gimple-range-gori.cc (range_def_chain::range_def_chain): init
7509         bitmap obstack.
7510         (range_def_chain::~range_def_chain): Dispose of obstack rather than
7511         each individual bitmap.
7512         (range_def_chain::set_import): New.
7513         (range_def_chain::get_imports): New.
7514         (range_def_chain::chain_import_p): New.
7515         (range_def_chain::register_dependency): Rename from build_def_chain
7516         and set imports.
7517         (range_def_chain::def_chain_in_bitmap_p): New.
7518         (range_def_chain::add_def_chain_to_bitmap): New.
7519         (range_def_chain::has_def_chain): Just check first depenedence.
7520         (range_def_chain::get_def_chain): Process imports, use generic
7521         register_dependency routine.
7522         (range_def_chain::dump): New.
7523         (gori_map::gori_map): Allocate import list.
7524         (gori_map::~gori_map): Release imports.
7525         (gori_map::exports): Check for past allocated block size.
7526         (gori_map::imports): New.
7527         (gori_map::def_chain_in_export_p): Delete.
7528         (gori_map::is_import_p): New.
7529         (gori_map::maybe_add_gori): Handle imports.
7530         (gori_map::dump): Adjust output, add imports.
7531         (gori_compute::has_edge_range_p): Remove def_chain_in_export call.
7532         (gori_export_iterator::gori_export_iterator): New.
7533         (gori_export_iterator::next): New.
7534         (gori_export_iterator::get_name): New.
7535         * gimple-range-gori.h (range_def_chain): Add imports and direct
7536         dependecies via struct rdc.
7537         (range_def_chain::depend1): New.
7538         (range_def_chain::depend2): New.
7539         (class gori_map): Adjust.
7540         (FOR_EACH_GORI_IMPORT_NAME): New.
7541         (FOR_EACH_GORI_EXPORT_NAME): New.
7542         (class gori_export_iterator): New.
7543
7544 2021-05-25  Andrew MacLeod  <amacleod@redhat.com>
7545
7546         * gimple-range-cache.cc (ranger_cache::ranger_cache):  Move initial
7547         export cache filling to here.
7548         * gimple-range-gori.cc (gori_compute::gori_compute) : From Here.
7549
7550 2021-05-25  Andrew MacLeod  <amacleod@redhat.com>
7551
7552         * gimple-range-gori.cc (range_def_chain): Move to gimple-range-gori.h.
7553         (gori_map): Move to gimple-range-gori.h.
7554         (gori_compute::gori_compute): Adjust.
7555         (gori_compute::~gori_compute): Delete.
7556         (gori_compute::compute_operand_range_switch): Adjust.
7557         (gori_compute::compute_operand_range): Adjust.
7558         (gori_compute::compute_logical_operands): Adjust.
7559         (gori_compute::has_edge_range_p ): Adjust.
7560         (gori_compute::set_range_invariant): Delete.
7561         (gori_compute::dump): Adjust.
7562         (gori_compute::outgoing_edge_range_p): Adjust.
7563         * gimple-range-gori.h (class range_def_chain): Relocate here.
7564         (class gori_map): Relocate here.
7565         (class gori_compute): Inherit from gori_map, and adjust.
7566
7567 2021-05-25  Aldy Hernandez  <aldyh@redhat.com>
7568
7569         * value-range.cc (range_tests_legacy): Use
7570         build_nonstandard_integer_type instead of int and short.
7571
7572 2021-05-25  Eric Botcazou  <ebotcazou@adacore.com>
7573
7574         * gimplify.c (gimplify_decl_expr): Clear TREE_READONLY on the DECL
7575         when really creating an initialization statement for it.
7576
7577 2021-05-25  Eric Botcazou  <ebotcazou@adacore.com>
7578
7579         * tree-inline.c (setup_one_parameter): Fix thinko in new condition.
7580
7581 2021-05-25  Kito Cheng  <kito.cheng@sifive.com>
7582
7583         * config/riscv/riscv.h (ASM_SPEC): Pass -mno-relax.
7584
7585 2021-05-25  Martin Liska  <mliska@suse.cz>
7586
7587         PR tree-optimization/92860
7588         PR target/99592
7589         * optc-save-gen.awk: Remove exceptions.
7590
7591 2021-05-25  Martin Liska  <mliska@suse.cz>
7592
7593         * asan.h (sanitize_coverage_p): New function.
7594         * doc/extend.texi: Document it.
7595         * fold-const.c (fold_range_test): Use sanitize_flags_p
7596         instead of flag_sanitize_coverage.
7597         (fold_truth_andor): Likewise.
7598         * sancov.c: Likewise.
7599         * tree-ssa-ifcombine.c (ifcombine_ifandif): Likewise.
7600         * ipa-inline.c (sanitize_attrs_match_for_inline_p): Handle
7601         -fsanitize-coverage when inlining.
7602
7603 2021-05-25  Cooper Qu  <cooper.qu@linux.alibaba.com>
7604
7605         * config/csky/csky-modes.def : Fix copyright.
7606
7607 2021-05-25  Cooper Qu  <cooper.qu@linux.alibaba.com>
7608
7609         * config/csky/csky-modes.def : Amend copyright.
7610         * config/csky/csky_insn_fpuv2.md : Likewise.
7611         * config/csky/csky_insn_fpuv3.md : Likewise.
7612
7613 2021-05-25  Richard Biener  <rguenther@suse.de>
7614
7615         PR middle-end/100727
7616         * calls.c (initialize_argument_information): Explicitely test
7617         for WITH_SIZE_EXPR.
7618         * gimple-expr.c (mark_addressable): Skip outer WITH_SIZE_EXPR.
7619
7620 2021-05-25  Geng Qi  <gengqi@linux.alibaba.com>
7621
7622         * config/csky/csky.h (FRAME_POINTER_REGNUM): Use
7623         HARD_FRAME_POINTER_REGNUM and FRAME_POINTER_REGNUM instead of
7624         the signle definition. The signle definition may not work well
7625         at simplify_subreg_regno().
7626         (HARD_FRAME_POINTER_REGNUM): New.
7627         (ELIMINABLE_REGS): Add for HARD_FRAME_POINTER_REGNUM.
7628         * config/csky/csky.c (get_csky_live_regs, csky_can_eliminate,
7629         csky_initial_elimination_offset, csky_expand_prologue,
7630         csky_expand_epilogue): Add for HARD_FRAME_POINTER_REGNUM.
7631
7632 2021-05-25  Geng Qi  <gengqi@linux.alibaba.com>
7633
7634         * config/csky/csky.c (csky_option_override):
7635         Init csky_arch_isa_features[] in advance, so TARGET_DSP
7636         and TARGET_DIV can be set well.
7637
7638 2021-05-25  Geng Qi  <gengqi@linux.alibaba.com>
7639
7640         * config/csky/constraints.md ("l", "h"): Delete.
7641         * config/csky/csky.h (reg_class, REG_CLASS_NAMES,
7642         REG_CLASS_CONTENTS):  Delete LO_REGS and HI_REGS.
7643         * config/csky/csky.c (regno_reg_classm,
7644         csky_secondary_reload, csky_register_move_cost):
7645         Use HILO_REGS instead of LO_REGS and HI_REGS.
7646
7647 2021-05-25  Geng Qi  <gengqi@linux.alibaba.com>
7648
7649         * config/csky/constraints.md ("W"): New constriant for mem operand
7650         with base reg, index register.
7651         ("Q"): Renamed and modified "csky_valid_fpuv2_mem_operand" to
7652         "csky_valid_mem_constraint_operand" to deal with both "Q" and "W"
7653         constraint.
7654         ("Dv"): New constraint for const double value that can be used at
7655         fmovi instruction.
7656         * config/csky/csky-modes.def (HFmode): New mode.
7657         * config/csky/csky-protos.h (csky_valid_fpuv2_mem_operand): Rename
7658         to "csky_valid_mem_constraint_operand" and support new constraint
7659         "W".
7660         (csky_get_movedouble_length): New.
7661         (fpuv3_output_move): New.
7662         (fpuv3_const_double): New.
7663         * config/csky/csky.c (csky_option_override): New arch CK860 with fpv3.
7664         (decompose_csky_address): Refine.
7665         (csky_print_operand): New "CONST_DOUBLE" operand.
7666         (csky_output_move): Support fpv3 instructions.
7667         (csky_get_movedouble_length): New.
7668         (fpuv3_output_move): New.
7669         (fpuv3_const_double): New.
7670         (csky_emit_compare): Cover float comparsion.
7671         (csky_emit_compare_float): Refine.
7672         (csky_vaild_fpuv2_mem_operand): Rename to
7673         "csky_valid_mem_constraint_operand" and support new constraint "W".
7674         (ck860_rtx_costs): New.
7675         (csky_rtx_costs): Add the cost calculation of CK860.
7676         (regno_reg_class): New vregs for fpuv3.
7677         (csky_dbx_regno): Likewise.
7678         (csky_cpu_cpp_builtins): New builtin macro for fpuv3.
7679         (csky_conditional_register_usage): Suporrot fpuv3.
7680         (csky_dwarf_register_span): Suporrot fpuv3.
7681         (csky_init_builtins, csky_mangle_type): Support "__fp16" type.
7682         (ck810_legitimate_index_p): Support fp16.
7683         * config/csky/csky.h (TARGET_TLS): ADD CK860.
7684         (CSKY_VREG_P, CSKY_VREG_LO_P, CSKY_VREG_HI_P): Support fpuv3.
7685         (TARGET_SINGLE_FPU): Support fpuv3.
7686         (TARGET_SUPPORT_FPV3): New.
7687         (FIRST_PSEUDO_REGISTER): Change to 202 to hold the new fpuv3 registers.
7688         (FIXED_REGISTERS, CALL_REALLY_USED_REGISTERS, REGISTER_NAMES,
7689          REG_CLASS_CONTENTS): Support fpuv3.
7690         * config/csky/csky.md (movsf): Move to cksy_insn_fpu.md and refine.
7691         (csky_movsf_fpv2): Likewise.
7692         (ck801_movsf): Likewise.
7693         (csky_movsf): Likewise.
7694         (movdf): Likewise.
7695         (csky_movdf_fpv2): Likewise.
7696         (ck801_movdf): Likewise.
7697         (csky_movdf): Likewise.
7698         (movsicc): Refine. Use "comparison_operatior" instead of
7699         "ordered_comparison_operatior".
7700         (addsicc): Likewise.
7701         (CSKY_FIRST_VFP3_REGNUM, CSKY_LAST_VFP3_REGNUM): New constant.
7702         (call_value_internal_vh): New.
7703         * config/csky/csky_cores.def (CK860): New arch and cpu.
7704         (fpv3_hf): New.
7705         (fpv3_hsf): New.
7706         (fpv3_sdf): New.
7707         (fpv3): New.
7708         * config/csky/csky_insn_fpu.md: Refactor. Separate all float patterns
7709         into emit-patterns and match-patterns, remain the emit-patterns here,
7710         and move the match-patterns to csky_insn_fpuv2.md or
7711         csky_insn_fpuv3.md.
7712         * config/csky/csky_insn_fpuv2.md: New file for fpuv2 instructions.
7713         * config/csky/csky_insn_fpuv3.md: New file and new patterns for fpuv3
7714         isntructions.
7715         * config/csky/csky_isa.def (fcr): New.
7716         (fpv3_hi): New.
7717         (fpv3_hf): New.
7718         (fpv3_sf): New.
7719         (fpv3_df): New.
7720         (CK860): New definition for ck860.
7721         * config/csky/csky_tables.opt (ck860): New processors ck860,
7722         ck860f. And new arch ck860.
7723         (fpv3_hf): New.
7724         (fpv3_hsf): New.
7725         (fpv3_hdf): New.
7726         (fpv3): New.
7727         * config/csky/predicates.md (csky_float_comparsion_operator): Delete
7728         "geu", "gtu", "leu", "ltu", which will never appear at float comparison.
7729         * config/csky/t-csky-elf: Support 860.
7730         * config/csky/t-csky-linux: Likewise.
7731         * doc/md.texi: Add "Q" and "W" constraints for C-SKY.
7732
7733 2021-05-24  Aaron Sawdey  <acsawdey@linux.ibm.com>
7734
7735         * config/rs6000/genfusion.pl (gen_logical_addsubf): Refactor to
7736         add generation of logical-add and add-logical fusion pairs.
7737         * config/rs6000/rs6000-cpus.def: Add new fusion to ISA 3.1 mask
7738         and powerpc mask.
7739         * config/rs6000/rs6000.c (rs6000_option_override_internal): Turn on
7740         logical-add and add-logical fusion by default.
7741         * config/rs6000/rs6000.opt: Add -mpower10-fusion-logical-add and
7742         -mpower10-fusion-add-logical options.
7743         * config/rs6000/fusion.md: Regenerate file.
7744
7745 2021-05-24  Aldy Hernandez  <aldyh@redhat.com>
7746
7747         * value-range.cc (irange::legacy_equal_p): Check type when
7748         comparing VR_VARYING types.
7749         (range_tests_legacy): Test comparing VARYING ranges of different
7750         sizes.
7751
7752 2021-05-24  Wilco Dijkstra  <wdijkstr@arm.com>
7753
7754         * config/aarch64/aarch64.c (neoversen1_tunings):
7755         Enable AARCH64_EXTRA_TUNE_CHEAP_SHIFT_EXTEND.
7756
7757 2021-05-24  Wilco Dijkstra  <wdijkstr@arm.com>
7758
7759         * config/aarch64/aarch64.c (aarch64_classify_symbol): Use GOT for
7760         extern weak symbols.  Limit symbol offsets for non-GOT symbols with
7761         PIC/PIE.
7762
7763 2021-05-24  Christophe Lyon  <christophe.lyon@linaro.org>
7764
7765         * config/arm/neon.md (vec_load_lanesxi<mode>)
7766         (vec_store_lanexoi<mode>): Move ...
7767         * config/arm/vec-common.md: here.
7768
7769 2021-05-24  Christophe Lyon  <christophe.lyon@linaro.org>
7770
7771         * config/arm/neon.md (vec_load_lanesoi<mode>)
7772         (vec_store_lanesoi<mode>): Move ...
7773         * config/arm/vec-common.md: here.
7774
7775 2021-05-24  liuhongt  <hongtao.liu@intel.com>
7776
7777         PR target/100660
7778         * config/i386/i386.c (ix86_gimple_fold_builtin): Replacing
7779         stmt with GIMPLE_NOP when lhs doesn't exist.
7780
7781 2021-05-23  Uroš Bizjak  <ubizjak@gmail.com>
7782
7783         PR target/100722
7784         * config/i386/mmx.md (*push<VI_32:mode>2_rex64):
7785         New instruction pattern.
7786         (*push<VI_32:mode>2): Ditto.
7787         (push splitter for SSE registers): New splitter.
7788
7789 2021-05-23  Andrew Pinski  <apinski@marvell.com>
7790
7791         * match.pd ((A & C) != 0 ? D : 0): Limit to non pointer types.
7792
7793 2021-05-22  Aaron Sawdey  <acsawdey@linux.ibm.com>
7794
7795         * config/rs6000/genfusion.pl (gen_addadd): Fix incorrect attr types.
7796         * config/rs6000/fusion.md: Regenerate file.
7797
7798 2021-05-21  Aaron Sawdey  <acsawdey@linux.ibm.com>
7799
7800         * config/rs6000/genfusion.pl (gen_addadd): New function.
7801         * config/rs6000/fusion.md: Regenerate file.
7802         * config/rs6000/rs6000-cpus.def: Add
7803         OPTION_MASK_P10_FUSION_2ADD to masks.
7804         * config/rs6000/rs6000.c (rs6000_option_override_internal):
7805         Handle default value of OPTION_MASK_P10_FUSION_2ADD.
7806         * config/rs6000/rs6000.opt: Add -mpower10-fusion-2add.
7807
7808 2021-05-21  Jakub Jelinek  <jakub@redhat.com>
7809
7810         PR middle-end/99928
7811         * tree.h (OMP_CLAUSE_FIRSTPRIVATE_IMPLICIT_TARGET): Define.
7812         * gimplify.c (enum gimplify_omp_var_data): Fix up
7813         GOVD_MAP_HAS_ATTACHMENTS value, add GOVD_FIRSTPRIVATE_IMPLICIT.
7814         (omp_lastprivate_for_combined_outer_constructs): If combined target
7815         has GOVD_FIRSTPRIVATE_IMPLICIT set for the decl, change it to
7816         GOVD_MAP | GOVD_SEEN.
7817         (gimplify_scan_omp_clauses): Set GOVD_FIRSTPRIVATE_IMPLICIT for
7818         firstprivate clauses with OMP_CLAUSE_FIRSTPRIVATE_IMPLICIT.
7819         (gimplify_adjust_omp_clauses): For firstprivate clauses with
7820         OMP_CLAUSE_FIRSTPRIVATE_IMPLICIT either clear that bit and
7821         OMP_CLAUSE_FIRSTPRIVATE_IMPLICIT_TARGET too, or remove it and
7822         let it be replaced by implicit map clause.
7823
7824 2021-05-21  Jakub Jelinek  <jakub@redhat.com>
7825
7826         PR middle-end/99928
7827         * gimplify.c (omp_lastprivate_for_combined_outer_constructs): New
7828         function.
7829         (gimplify_scan_omp_clauses) <case OMP_CLAUSE_LASTPRIVATE>: Use it.
7830         (gimplify_omp_for): Likewise.
7831
7832 2021-05-21  Thomas Schwinge  <thomas@codesourcery.com>
7833
7834         PR middle-end/90115
7835         * omp-low.c (oacc_privatization_candidate_p): Reject 'static',
7836         'external' in blocks.
7837
7838 2021-05-21  Thomas Schwinge  <thomas@codesourcery.com>
7839
7840         PR middle-end/90115
7841         * flag-types.h (enum openacc_privatization): New.
7842         * params.opt (-param=openacc-privatization): New.
7843         * doc/invoke.texi (openacc-privatization): Document it.
7844         * omp-general.h (get_openacc_privatization_dump_flags): New
7845         function.
7846         * omp-low.c (oacc_privatization_candidate_p): Add diagnostics.
7847         * omp-offload.c (execute_oacc_device_lower)
7848         <IFN_UNIQUE_OACC_PRIVATE>: Re-work diagnostics.
7849         * target.def (goacc.adjust_private_decl): Add 'location_t'
7850         parameter.
7851         * doc/tm.texi: Regenerate.
7852         * config/gcn/gcn-protos.h (gcn_goacc_adjust_private_decl): Adjust.
7853         * config/gcn/gcn-tree.c (gcn_goacc_adjust_private_decl): Likewise.
7854         * config/nvptx/nvptx.c (nvptx_goacc_adjust_private_decl):
7855         Likewise.  Preserve it for...
7856         (nvptx_goacc_expand_var_decl): ... use here.
7857
7858 2021-05-21  Thomas Schwinge  <thomas@codesourcery.com>
7859
7860         * doc/sourcebuild.texi (Other attributes): Document '__OPTIMIZE__'
7861         DejaGnu selector.
7862
7863 2021-05-21  Thomas Schwinge  <thomas@codesourcery.com>
7864
7865         PR middle-end/90115
7866         * omp-low.c (oacc_privatization_candidate_p): New function.
7867         (oacc_privatization_scan_clause_chain)
7868         (oacc_privatization_scan_decl_chain): Use it.  Also
7869         'gcc_checking_assert' that we're not seeing duplicates.
7870
7871 2021-05-21  Thomas Schwinge  <thomas@codesourcery.com>
7872
7873         PR middle-end/90115
7874         * omp-offload.c (execute_oacc_device_lower): Skip processing if no
7875         work to be done.
7876
7877 2021-05-21  Thomas Schwinge  <thomas@codesourcery.com>
7878
7879         PR middle-end/90115
7880         * omp-offload.c (execute_oacc_device_lower): Explain.
7881
7882 2021-05-21  Thomas Schwinge  <thomas@codesourcery.com>
7883
7884         PR middle-end/90115
7885         * omp-offload.c (execute_oacc_device_lower)
7886         <IFN_UNIQUE_OACC_PRIVATE>: Diagnose and handle for 'level == -1'
7887         case, too.
7888         * internal-fn.c (expand_UNIQUE): Don't expect
7889         'IFN_UNIQUE_OACC_PRIVATE'.
7890
7891 2021-05-21  Thomas Schwinge  <thomas@codesourcery.com>
7892
7893         PR middle-end/90115
7894         * omp-low.c (lower_omp_for): Don't evaluate OpenMP 'for' clauses.
7895
7896 2021-05-21  Thomas Schwinge  <thomas@codesourcery.com>
7897
7898         PR middle-end/90115
7899         * config/nvptx/nvptx.c (nvptx_goacc_adjust_private_decl)
7900         (nvptx_goacc_expand_var_decl): Tighten.
7901
7902 2021-05-21  Julian Brown  <julian@codesourcery.com>
7903             Chung-Lin Tang  <cltang@codesourcery.com>
7904             Thomas Schwinge  <thomas@codesourcery.com>
7905
7906         PR middle-end/90115
7907         * doc/tm.texi.in (TARGET_GOACC_EXPAND_VAR_DECL)
7908         (TARGET_GOACC_ADJUST_PRIVATE_DECL): Add documentation hooks.
7909         * doc/tm.texi: Regenerate.
7910         * expr.c (expand_expr_real_1): Expand decls using the
7911         expand_var_decl OpenACC hook if defined.
7912         * internal-fn.c (expand_UNIQUE): Handle IFN_UNIQUE_OACC_PRIVATE.
7913         * internal-fn.h (IFN_UNIQUE_CODES): Add OACC_PRIVATE.
7914         * omp-low.c (omp_context): Add oacc_privatization_candidates
7915         field.
7916         (lower_oacc_reductions): Add PRIVATE_MARKER parameter.  Insert
7917         before fork.
7918         (lower_oacc_head_tail): Add PRIVATE_MARKER parameter.  Modify
7919         private marker's gimple call arguments, and pass it to
7920         lower_oacc_reductions.
7921         (oacc_privatization_scan_clause_chain)
7922         (oacc_privatization_scan_decl_chain, lower_oacc_private_marker):
7923         New functions.
7924         (lower_omp_for, lower_omp_target, lower_omp_1): Use these.
7925         * omp-offload.c (convert.h): Include.
7926         (oacc_loop_xform_head_tail): Treat private-variable markers like
7927         fork/join when transforming head/tail sequences.
7928         (struct var_decl_rewrite_info): Add struct.
7929         (oacc_rewrite_var_decl, is_sync_builtin_call): New functions.
7930         (execute_oacc_device_lower): Support rewriting gang-private
7931         variables using target hook, and fix up addr_expr and var_decl
7932         nodes afterwards.
7933         * target.def (adjust_private_decl, expand_var_decl): New hooks.
7934         * config/gcn/gcn-protos.h (gcn_goacc_adjust_gangprivate_decl):
7935         Rename to...
7936         (gcn_goacc_adjust_private_decl): ...this.
7937         * config/gcn/gcn-tree.c (gcn_goacc_adjust_gangprivate_decl):
7938         Rename to...
7939         (gcn_goacc_adjust_private_decl): ...this. Add LEVEL parameter.
7940         * config/gcn/gcn.c (TARGET_GOACC_ADJUST_GANGPRIVATE_DECL): Rename
7941         definition using gcn_goacc_adjust_gangprivate_decl...
7942         (TARGET_GOACC_ADJUST_PRIVATE_DECL): ...to this, using
7943         gcn_goacc_adjust_private_decl.
7944         * config/nvptx/nvptx.c (tree-pretty-print.h): Include.
7945         (gang_private_shared_size): New global variable.
7946         (gang_private_shared_align): Likewise.
7947         (gang_private_shared_sym): Likewise.
7948         (gang_private_shared_hmap): Likewise.
7949         (nvptx_option_override): Initialize these.
7950         (nvptx_file_end): Output gang_private_shared_sym.
7951         (nvptx_goacc_adjust_private_decl, nvptx_goacc_expand_var_decl):
7952         New functions.
7953         (nvptx_set_current_function): Clear gang_private_shared_hmap.
7954         (TARGET_GOACC_ADJUST_PRIVATE_DECL): Define hook.
7955         (TARGET_GOACC_EXPAND_VAR_DECL): Likewise.
7956
7957 2021-05-21  H.J. Lu  <hjl.tools@gmail.com>
7958
7959         * config/i386/i386-modes.def (MAX_BITSIZE_MODE_ANY_INT): Removed.
7960
7961 2021-05-21  Richard Biener  <rguenther@suse.de>
7962             H.J. Lu  <hjl.tools@gmail.com>
7963
7964         PR middle-end/90773
7965         * expr.c (expand_constructor): Elide expand_constructor if
7966         move by pieces is preferred.
7967
7968 2021-05-21  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
7969
7970         * config/aarch64/aarch64-builtins.c (aarch64_call_properties):
7971         Take a flag and mode value as arguments.
7972         (aarch64_modifies_global_state_p): Likewise.
7973         (aarch64_reads_global_state_p): Likewise.
7974         (aarch64_could_trap_p): Likewise.
7975         (aarch64_get_attributes): Likewise.
7976         (aarch64_init_simd_builtins): Adjust callsite of above.
7977         (aarch64_init_fcmla_laneq_builtins): Use aarch64_get_attributes to get
7978         function attributes to apply to builtins.
7979         (aarch64_init_crc32_builtins): Likewise.
7980         (aarch64_init_builtin_rsqrt): Likewise.
7981
7982 2021-05-21  Aaron Sawdey  <acsawdey@linux.ibm.com>
7983
7984         * config/rs6000/rs6000.md (define_attr "type"): Add types for fusion.
7985         * config/rs6000/genfusion.pl (gen_ld_cmpi_p10): Use new fusion types.
7986         (gen_2logical): Use new fusion types.
7987         * config/rs6000/fusion.md: Regenerate.
7988
7989 2021-05-21  Uroš Bizjak  <ubizjak@gmail.com>
7990
7991         PR target/100637
7992         * config/i386/i386-expand.c (ix86_expand_sse_movcc):
7993         Handle V4QI and V2HI modes.
7994         (ix86_expand_sse_movcc): Ditto.
7995         * config/i386/mmx.md (*<sat_plusminus:insn><VI_32:mode>3):
7996         New instruction pattern.
7997         (*eq<VI_32:mode>3): Ditto.
7998         (*gt<VI_32:mode>3): Ditto.
7999         (*xop_pcmov_<VI_32:mode>): Ditto.
8000         (mmx_pblendvb32): Ditto.
8001         (mmx_pblendvb64): Rename from mmx_pblendvb.
8002         (vec_cmp<VI_32:mode><VI_32:mode>): New expander.
8003         (vec_cmpu<VI_32:mode><VI_32:mode>): Ditto.
8004         (vcond<VI_32:mode><VI_32:mode>): Ditto.
8005         (vcondu<VI_32:mode><VI_32:mode>): Ditto.
8006         (vcond_mask_<VI_32:mode><VI_32:mode>): Ditto.
8007
8008 2021-05-21  Jakub Jelinek  <jakub@redhat.com>
8009
8010         PR tree-optimization/94589
8011         * tree-ssa-phiopt.c (spaceship_replacement): For integral rhs1 and
8012         rhs2, treat x <= 4 equivalently to x < 5 etc.  In cmp1 and cmp2 (if
8013         not the same as cmp3) treat <= the same as < and >= the same as >.
8014         Don't require that cond2_phi_edge is true edge, instead take
8015         false/true edges into account based on cmp1/cmp2 comparison kinds.
8016
8017 2021-05-21  Uroš Bizjak  <ubizjak@gmail.com>
8018
8019         PR target/100637
8020         * config/i386/mmx.md (SMAXMIN_MMXMODEI): New mode iterator.
8021         (<smaxmin:code><SMAXMIN_MMXMODEI:mode>3): Macroize expander
8022         from <smaxmin:code>v4hi3> and <smaxmin:code><MMXMODE14:mode>3
8023         using SMAXMIN_MMXMODEI mode iterator.
8024         (*<smaxmin:code>v4qi3): New insn pattern.
8025         (*<smaxmin:code>v2hi3): Ditto.
8026         (SMAXMIN_VI_32): New mode iterator.
8027         (<smaxmin:code><SMAXMIN_VI_32>mode3): New expander.
8028         (UMAXMIN_MMXMODEI): New mode iterator.
8029         (<umaxmin:code><UMAXMIN_MMXMODEI:mode>3): Macroize expander
8030         from <umaxmin:code>v8qi3> and <umaxmin:code><MMXMODE24:mode>3
8031         using UMAXMIN_MMXMODEI mode iterator.
8032         (*<umaxmin:code>v4qi3): New insn pattern.
8033         (*<umaxmin:code>v2hi3): Ditto.
8034         (UMAXMIN_VI_32): New mode iterator.
8035         (<umaxmin:code><UMAXMIN_VI_32>mode3): New expander.
8036         (abs<VI_32:mode>2): New insn pattern.
8037         (ssse3_abs<MMXMODEI:mode>2, abs<MMXMODEI:mode>2): Move from ...
8038         * config/i386/sse.md: ... here.
8039
8040 2021-05-20  Clement Chigot  <clement.chigot@atos.net>
8041             David Edelsohn  <dje.gcc@gmail.com>
8042
8043         * collect2.c (scan_prog_file): Issue non-fatal warning for
8044         non-COFF files.
8045
8046 2021-05-20  Jonathan Wakely  <jwakely@redhat.com>
8047
8048         * doc/invoke.texi (-Wno-c++11-extensions)
8049         (-Wno-c++14-extensions, -Wno-c++17-extensions)
8050         (-Wno-c++20-extensions, -Wno-c++23-extensions): Document
8051         new options.
8052
8053 2021-05-20  Indu Bhagat  <indu.bhagat@oracle.com>
8054
8055         * config/c6x/c6x.c (c6x_output_file_unwind): Use dwarf_debuginfo_p.
8056         * config/darwin.c (darwin_override_options): Likewise.
8057         * config/i386/cygming.h (DBX_REGISTER_NUMBER): Likewise.
8058         * config/i386/darwin.h (DBX_REGISTER_NUMBER): Likewise.
8059         (DWARF2_FRAME_REG_OUT): Likewise.
8060         * config/mips/mips.c (mips_output_filename): Likewise.
8061         * config/rs6000/rs6000.c (rs6000_xcoff_declare_function_name):
8062         Likewise.
8063         (rs6000_dbx_register_number): Likewise.
8064         * dbxout.c: Include flags.h.
8065         * dwarf2cfi.c (cfi_label_required_p): Likewise.
8066         (dwarf2out_do_frame): Likewise.
8067         * except.c: Include flags.h.
8068         * final.c (dwarf2_debug_info_emitted_p): Likewise.
8069         (final_scan_insn_1): Likewise.
8070         * flags.h (dwarf_debuginfo_p): New function declaration.
8071         * opts.c (dwarf_debuginfo_p): New function definition.
8072         * targhooks.c (default_debug_unwind_info): Use dwarf_debuginfo_p.
8073         * toplev.c (process_options): Likewise.
8074
8075 2021-05-20  Indu Bhagat  <indu.bhagat@oracle.com>
8076
8077         * common.opt: Change type to support bitmasks.
8078         * flag-types.h (enum debug_info_type): Rename enumerator constants.
8079         (NO_DEBUG): New bitmask.
8080         (DBX_DEBUG): Likewise.
8081         (DWARF2_DEBUG): Likewise.
8082         (XCOFF_DEBUG): Likewise.
8083         (VMS_DEBUG): Likewise.
8084         (VMS_AND_DWARF2_DEBUG): Likewise.
8085         * flags.h (debug_set_to_format): New function declaration.
8086         (debug_set_count): Likewise.
8087         (debug_set_names): Likewise.
8088         * opts.c (debug_type_masks): Array of bitmasks for debug formats.
8089         (debug_set_to_format): New function definition.
8090         (debug_set_count): Likewise.
8091         (debug_set_names): Likewise.
8092         (set_debug_level): Update access to debug_type_names.
8093         * toplev.c: Likewise.
8094
8095 2021-05-20  Martin Sebor  <msebor@redhat.com>
8096
8097         PR middle-end/100684
8098         * tree-ssa-ccp.c (pass_post_ipa_warn::execute): Handle C++ lambda.
8099
8100 2021-05-20  Uroš Bizjak  <ubizjak@gmail.com>
8101
8102         PR target/100701
8103         * config/i386/i386.md (isa): Remove x64_bmi.
8104         (enabled): Remove x64_bmi.
8105         * config/i386/mmx.md (mmx_andnot<MMXMODEI:mode>3):
8106         Remove general register alternative.
8107         (*andnot<VI_32:mode>3): Ditto.
8108         (*mmx_<any_logic:code><MMXMODEI:mode>3): Ditto.
8109         (*<any_logic:code><VI_32:mode>3): Ditto.
8110
8111 2021-05-20  Kewen Lin  <linkw@linux.ibm.com>
8112
8113         * config/arm/arm.c: Include head files tree-vectorizer.h and
8114         cfgloop.h.
8115
8116 2021-05-20  Uroš Bizjak  <ubizjak@gmail.com>
8117
8118         PR target/100637
8119         * config/i386/mmx.md (Yv_Yw): Revert adding V4QI and V2HI modes.
8120         (*<plusminus:insn><VI_32:mode>3): Use Yw instad of <Yv_Yw> constrint.
8121         (<s>mulv4hi3_highpart): New expander.
8122         (*<s>mulv2hi3_highpart): New insn pattern.
8123         (<s>mulv2hi3_higpart): New expander.
8124         (*<any_shift:insn>v2hi3): New insn pattern.
8125         (<any_shift:insn>v2hi3): New expander.
8126         * config/i386/sse.md (smulhrsv2hi3): New expander.
8127         (*smulhrsv2hi3): New insn pattern.
8128
8129 2021-05-20  Kewen Lin  <linkw@linux.ibm.com>
8130
8131         * doc/invoke.texi (vect-inner-loop-cost-factor): Document new
8132         parameter.
8133         * params.opt (vect-inner-loop-cost-factor): New.
8134         * targhooks.c (default_add_stmt_cost): Replace hardcoded factor
8135         50 with LOOP_VINFO_INNER_LOOP_COST_FACTOR, include head file
8136         tree-vectorizer.h and its required ones.
8137         * config/aarch64/aarch64.c (aarch64_add_stmt_cost): Replace
8138         hardcoded factor 50 with LOOP_VINFO_INNER_LOOP_COST_FACTOR.
8139         * config/arm/arm.c (arm_add_stmt_cost): Likewise.
8140         * config/i386/i386.c (ix86_add_stmt_cost): Likewise.
8141         * config/rs6000/rs6000.c (rs6000_add_stmt_cost): Likewise.
8142         * tree-vect-loop.c (vect_compute_single_scalar_iteration_cost):
8143         Likewise.
8144         (_loop_vec_info::_loop_vec_info): Init inner_loop_cost_factor.
8145         * tree-vectorizer.h (_loop_vec_info): Add inner_loop_cost_factor.
8146         (LOOP_VINFO_INNER_LOOP_COST_FACTOR): New macro.
8147
8148 2021-05-20  Christophe Lyon  <christophe.lyon@linaro.org>
8149             Torbjörn Svensson  <torbjorn.svensson@st.com>
8150
8151         PR c/42579
8152         * doc/cpp.texi (Common Predefined Macros): Document __FILE_NAME__.
8153
8154 2021-05-20  Jakub Jelinek  <jakub@redhat.com>
8155
8156         PR middle-end/99928
8157         * gimplify.c (gimplify_scan_omp_clauses) <case OMP_CLAUSE_LINEAR>: For
8158         explicit linear clause when combined with target, make it map(tofrom:)
8159         instead of no clause or firstprivate.
8160
8161 2021-05-20  Jakub Jelinek  <jakub@redhat.com>
8162
8163         PR tree-optimization/94589
8164         * match.pd ((X & Y) == X -> (X & ~Y) == 0): Simplify even in presence
8165         of integral conversions.
8166
8167 2021-05-19  Andrew MacLeod  <amacleod@redhat.com>
8168
8169         * gimple-range.cc (fur_source::get_operand): New.
8170         (gimple_range_fold): Delete.
8171         (fold_using_range::fold_stmt): Move from gimple_ranger::calc_stmt.
8172         (fold_using_range::range_of_range_op): Move from gimple_ranger.
8173         (fold_using_range::range_of_address): Ditto.
8174         (fold_using_range::range_of_phi): Ditto.
8175         (fold_using_range::range_of_call): Ditto.
8176         (fold_using_range::range_of_builtin_ubsan_call): Move from
8177         range_of_builtin_ubsan_call.
8178         (fold_using_range::range_of_builtin_call): Move from
8179         range_of_builtin_call.
8180         (gimple_ranger::range_of_builtin_call): Delete.
8181         (fold_using_range::range_of_cond_expr): Move from gimple_ranger.
8182         (gimple_ranger::fold_range_internal): New.
8183         (gimple_ranger::range_of_stmt): Use new fold_using_range API.
8184         (fold_using_range::range_of_ssa_name_with_loop_info): Move from
8185         gimple_ranger.  Improve ranges of SSA_NAMES when possible.
8186         * gimple-range.h (gimple_ranger): Remove various range_of routines.
8187         (class fur_source): New.
8188         (class fold_using_range): New.
8189         (fur_source::fur_source): New.
8190         (fold_range): New.
8191         * vr-values.c (vr_values::extract_range_basic): Use fold_using_range
8192         instead of range_of_builtin_call.
8193
8194 2021-05-19  Jonathan Wakely  <jwakely@redhat.com>
8195
8196         * doc/cpp.texi (Common Predefined Macros): Update documentation
8197         for the __GXX_EXPERIMENTAL_CXX0X__ macro.
8198
8199 2021-05-19  Alex Coplan  <alex.coplan@arm.com>
8200
8201         PR target/100333
8202         * config/arm/arm.md (nonsecure_call_internal): Always ensure
8203         callee's address is in a register.
8204
8205 2021-05-19  Geng Qi  <gengqi@linux.alibaba.com>
8206
8207         * common/config/riscv/riscv-common.c
8208         (riscv_subset_list::parsing_subset_version): Properly parse the letter
8209         'p' in '-march'.
8210         (riscv_subset_list::parse_std_ext,
8211          riscv_subset_list::parse_multiletter_ext): To handle errors generated
8212         in riscv_subset_list::parsing_subset_version.
8213
8214 2021-05-19  Jonathan Wright  <jonathan.wright@arm.com>
8215
8216         * config/aarch64/aarch64-simd.md: Use "neon_move_narrow_q"
8217         type attribute in patterns generating XTN(2).
8218
8219 2021-05-19  Jonathan Wright  <jonathan.wright@arm.com>
8220
8221         * config/aarch64/aarch64-simd.md (aarch64_simd_vec_pack_trunc_<mode>):
8222         Remove as duplicate of...
8223         (aarch64_xtn<mode>): This.
8224         (aarch64_xtn2<mode>_le): Move position in file.
8225         (aarch64_xtn2<mode>_be): Move position in file.
8226         (aarch64_xtn2<mode>): Move position in file.
8227         (vec_pack_trunc_<mode>): Define as an expander.
8228
8229 2021-05-19  Jonathan Wright  <jonathan.wright@arm.com>
8230
8231         * config/aarch64/aarch64-simd-builtins.def: Split builtin
8232         generation for aarch64_<sur>q<r>shr<u>n_n<mode> pattern into
8233         separate scalar and vector generators.
8234         * config/aarch64/aarch64-simd.md
8235         (aarch64_<sur>q<r>shr<u>n_n<mode>): Define as an expander and
8236         split into...
8237         (aarch64_<sur>q<r>shr<u>n_n<mode>_insn_le): This and...
8238         (aarch64_<sur>q<r>shr<u>n_n<mode>_insn_be): This.
8239         * config/aarch64/iterators.md: Define SD_HSDI iterator.
8240
8241 2021-05-19  Jonathn Wright  <jonathan.wright@arm.com>
8242
8243         * config/aarch64/aarch64-simd.md: Use UNSPEC_SQXTUN instead
8244         of UNSPEC_SQXTUN2.
8245         * config/aarch64/iterators.md: Remove UNSPEC_SQXTUN2.
8246
8247 2021-05-19  Jonathan Wright  <jonathan.wright@arm.com>
8248
8249         * config/aarch64/aarch64-simd.md (aarch64_<sur>q<r>shr<u>n2_n<mode>):
8250         Implement as an expand emitting a big/little endian
8251         instruction pattern.
8252         (aarch64_<sur>q<r>shr<u>n2_n<mode>_insn_le): Define.
8253         (aarch64_<sur>q<r>shr<u>n2_n<mode>_insn_be): Define.
8254
8255 2021-05-19  Jonathan Wright  <jonathan.wright@arm.com>
8256
8257         * config/aarch64/aarch64-simd.md (aarch64_<sur><addsub>hn2<mode>):
8258         Implement as an expand emitting a big/little endian
8259         instruction pattern.
8260         (aarch64_<sur><addsub>hn2<mode>_insn_le): Define.
8261         (aarch64_<sur><addsub>hn2<mode>_insn_be): Define.
8262         * config/aarch64/iterators.md: Remove UNSPEC_[R]ADDHN2 and
8263         UNSPEC_[R]SUBHN2 unspecs and ADDSUBHN2 iterator.
8264
8265 2021-05-19  Richard Biener  <rguenther@suse.de>
8266
8267         PR middle-end/100672
8268         * fold-const.c (fold_negate_expr_1): Use element_precision.
8269         (negate_expr_p): Likewise.
8270
8271 2021-05-19  Andre Vieira  <andre.simoesdiasvieira@arm.com>
8272
8273         * config/aarch64/iterators.md (SVE_PRED_LOAD): New iterator.
8274         (pred_load): New int attribute.
8275         * config/aarch64/aarch64-sve.md
8276         (aarch64_load_<ANY_EXTEND:optab><SVE_HSDI:mode><SVE_PARTIAL_I:mode>): Use
8277         SVE_PRED_LOAD enum iterator and corresponding pred_load attribute.
8278         * config/aarch64/aarch64-sve-builtins-base.cc (expand): Update call to
8279         code_for_aarch64_load.
8280
8281 2021-05-19  Richard Biener  <rguenther@suse.de>
8282
8283         * cfgexpand.c (discover_nonconstant_array_refs_r): Make
8284         sure TARGET_MEM_REF bases are expanded as memory.
8285         * tree-ssa-operands.c (operands_scanner::get_tmr_operands):
8286         Do not mark TARGET_MEM_REF bases addressable.
8287         * tree-ssa.c (non_rewritable_mem_ref_base): Handle
8288         TARGET_MEM_REF bases as never rewritable.
8289         * gimple-walk.c (walk_stmt_load_store_addr_ops): Do not
8290         walk TARGET_MEM_REF bases as address-takens.
8291         * tree-ssa-dce.c (ref_may_be_aliased): Handle TARGET_MEM_REF.
8292
8293 2021-05-19  Richard Biener  <rguenther@suse.de>
8294
8295         * builtins.c (get_object_alignment_1): Strip outer
8296         WITH_SIZE_EXPR.
8297         * tree-dfa.c (get_ref_base_and_extent): Handle outer
8298         WITH_SIZE_EXPR for size processing and process the
8299         containing ref.
8300         * tree-ssa-alias.c (ao_ref_base_alias_set): Strip
8301         outer WITH_SIZE_EXPR.
8302         (ao_ref_base_alias_ptr_type): Likewise.
8303         (refs_may_alias_p_2): Allow WITH_SIZE_EXPR in ref->ref
8304         and handle that accordingly, stripping it for the
8305         core alias workers.
8306         * tree.c (get_base_address): Handle WITH_SIZE_EXPR by
8307         looking through it instead of returning NULL.
8308
8309 2021-05-19  Jakub Jelinek  <jakub@redhat.com>
8310
8311         PR middle-end/100576
8312         * builtins.c (check_read_access): Convert bound to size_type_node if
8313         non-NULL.
8314
8315 2021-05-19  Richard Biener  <rguenther@suse.de>
8316
8317         * tree-cfg.c (verify_types_in_gimple_min_lval): Inline...
8318         (verify_types_in_gimple_reference): ... here.  Sanitize.
8319         (verify_gimple_call): Verify references in LHS and arguments.
8320         (verify_gimple_assign_single): Reject WITH_SIZE_EXPR.
8321
8322 2021-05-19  Uroš Bizjak  <ubizjak@gmail.com>
8323
8324         * config/i386/i386.h (VALID_INT_MODE_P):
8325         Add V8QI, V4HI and V2SI modes for TARGET_64BIT.
8326         * config/i386/i386.md (isa): Add x64_bmi.
8327         (enabled): Handle x64_bmi.
8328         * config/i386/mmx.md (mmx_andnot<MMXMODEI:mode>3):
8329         Add alternative using 64bit general registers.
8330         (*mmx_<any_logic:code><MMXMODEI:mode>3): Ditto.
8331
8332 2021-05-19  Jakub Jelinek  <jakub@redhat.com>
8333
8334         PR middle-end/99928
8335         * tree.h (OMP_MASTER_COMBINED): Define.
8336         * gimplify.c (gimplify_scan_omp_clauses): Rewrite lastprivate
8337         handling for outer combined/composite constructs to a loop.
8338         Handle lastprivate on combined target.
8339         (gimplify_expr): Formatting fix.
8340
8341 2021-05-19  Xionghu Luo  <luoxhu@linux.ibm.com>
8342
8343         * passes.def: Add sink_code pass before store_merging.
8344         * tree-ssa-sink.c (pass_sink_code:clone): New.
8345
8346 2021-05-18  Bill Schmidt  <wschmidt@linux.ibm.com>
8347
8348         * config/rs6000/freebsd64.h (ADJUST_FIELD_ALIGN): Remove call to
8349         rs6000_special_adjust_field_align_p.
8350         * config/rs6000/linux64.h (ADJUST_FIELD_ALIGN): Likewise.
8351         * config/rs6000/rs6000-call.c (rs6000_function_arg_boundary):
8352         Remove ABI warning.
8353         (rs6000_function_arg): Likewise.
8354         * config/rs6000/rs6000-protos.h
8355         (rs6000_special_adjust_field_align_p): Remove prototype.
8356         * config/rs6000/rs6000.c (rs6000_special_adjust_field_align_p):
8357         Remove.
8358         * config/rs6000/sysv4.h (ADJUST_FIELD_ALIGN): Remove call to
8359         rs6000_special_adjust_field_align_p.
8360
8361 2021-05-18  Uroš Bizjak  <ubizjak@gmail.com>
8362
8363         PR target/100637
8364         * config/i386/i386.h (VALID_SSE2_REG_MODE):
8365         Add V4QI and V2HI modes.
8366         (VALID_INT_MODE_P): Ditto.
8367         * config/i386/mmx.md (VI_32): New mode iterator.
8368         (mmxvecsize): Handle V4QI and V2HI.
8369         (Yv_Yw): Ditto.
8370         (mov<VI_32:mode>): New expander.
8371         (*mov<mode>_internal): New insn pattern.
8372         (movmisalign<VI_32:mode>): New expander.
8373         (neg<VI_32:mode>): New expander.
8374         (<plusminus:insn><VI_32:mode>3): New expander.
8375         (*<plusminus:insn><VI_32:mode>3): New insn pattern.
8376         (mulv2hi3): New expander.
8377         (*mulv2hi3): New insn pattern.
8378         (one_cmpl<VI_32:mode>2): New expander.
8379         (*andnot<VI_32:mode>3): New insn pattern.
8380         (<any_logic:code><VI_32:mode>3): New expander.
8381         (*<any_logic:code><VI_32:mode>3): New insn pattern.
8382
8383 2021-05-18  Uroš Bizjak  <ubizjak@gmail.com>
8384
8385         * config/i386/sse.md (<any_extend:insn>v4qiv4di2):
8386         Fix a mode mismatch with operand 1.
8387
8388 2021-05-18  Uroš Bizjak  <ubizjak@gmail.com>
8389
8390         PR target/100626
8391         * config/i386/i386-expand.c (split_double_mode): Return
8392         temporary register when simplify_gen_subreg fails with
8393         the high half od the paradoxical subreg.
8394
8395 2021-05-18  Richard Biener  <rguenther@suse.de>
8396
8397         * cfgexpand.c (expand_one_var): Pass in forced_stack_var
8398         and honor it when expanding.
8399         (expand_used_vars_for_block): Pass through forced_stack_var.
8400         (expand_used_vars): Likewise.
8401         (discover_nonconstant_array_refs_r): Set bits in
8402         forced_stack_vars instead of marking vars TREE_ADDRESSABLE.
8403         (avoid_type_punning_on_regs): Likewise.
8404         (discover_nonconstant_array_refs): Likewise.
8405         (pass_expand::execute): Create and pass down forced_stack_var
8406         bitmap.  For parameters and returns temporarily set
8407         TREE_ADDRESSABLE when expand_function_start.
8408
8409 2021-05-18  Thomas Schwinge  <thomas@codesourcery.com>
8410
8411         * doc/sourcebuild.texi: Document 'dg-note'.
8412
8413 2021-05-18  Tobias Burnus  <tobias@codesourcery.com>
8414
8415         PR other/100598
8416         * configure: Regenerate.
8417         * configure.ac (BUILD_CFLAG, BUILD_CXXFLAGS): Add $(CFLAGS-$@).
8418
8419 2021-05-18  Thomas Schwinge  <thomas@codesourcery.com>
8420
8421         * gimple.h (is_gimple_omp_oacc): Tighten.
8422         * omp-low.c (check_omp_nesting_restrictions): Adjust.
8423
8424 2021-05-18  Richard Biener  <rguenther@suse.de>
8425
8426         * tree-ssa-operands.c (mark_address_taken): Simplify.
8427
8428 2021-05-18  Martin Liska  <mliska@suse.cz>
8429
8430         * config/gcn/mkoffload.c (STR): Redefine.
8431         * config/i386/intelmic-mkoffload.c (STR): Likewise.
8432         * config/nvptx/mkoffload.c (STR): Likewise.
8433
8434 2021-05-18  Martin Liska  <mliska@suse.cz>
8435
8436         * common/config/aarch64/aarch64-common.c (aarch64_parse_extension):
8437         Use startswith function instead of strncmp.
8438         * common/config/bfin/bfin-common.c (bfin_handle_option): Likewise.
8439         * common/config/riscv/riscv-common.c (riscv_subset_list::parse): Likewise.
8440         * config/aarch64/aarch64-sve-builtins-shapes.cc (parse_type): Likewise.
8441         * config/aarch64/aarch64.c (aarch64_process_one_target_attr): Likewise.
8442         * config/alpha/alpha.c (alpha_elf_section_type_flags): Likewise.
8443         * config/arm/aarch-common.c (arm_md_asm_adjust): Likewise.
8444         * config/arm/arm.c (arm_file_start): Likewise.
8445         (arm_valid_target_attribute_rec): Likewise.
8446         (thumb1_md_asm_adjust): Likewise.
8447         * config/arm/driver-arm.c (host_detect_local_cpu): Likewise.
8448         * config/avr/avr.c (STR_PREFIX_P): Likewise.
8449         (avr_set_current_function): Likewise.
8450         (avr_handle_addr_attribute): Likewise.
8451         (avr_asm_output_aligned_decl_common): Likewise.
8452         (avr_asm_named_section): Likewise.
8453         (avr_section_type_flags): Likewise.
8454         (avr_asm_select_section): Likewise.
8455         * config/c6x/c6x.c (c6x_in_small_data_p): Likewise.
8456         (c6x_section_type_flags): Likewise.
8457         * config/darwin-c.c (darwin_cfstring_ref_p): Likewise.
8458         (darwin_objc_declare_unresolved_class_reference): Likewise.
8459         (darwin_objc_declare_class_definition): Likewise.
8460         * config/darwin.c (indirect_data): Likewise.
8461         (darwin_encode_section_info): Likewise.
8462         (darwin_objc2_section): Likewise.
8463         (darwin_objc1_section): Likewise.
8464         (machopic_select_section): Likewise.
8465         (darwin_globalize_label): Likewise.
8466         (darwin_label_is_anonymous_local_objc_name): Likewise.
8467         (darwin_asm_named_section): Likewise.
8468         (darwin_asm_output_dwarf_offset): Likewise.
8469         * config/frv/frv.c (frv_string_begins_with): Likewise.
8470         (frv_in_small_data_p): Likewise.
8471         * config/gcn/mkoffload.c (STR): Likewise.
8472         (main): Likewise.
8473         * config/i386/i386-builtins.c (get_builtin_code_for_version): Likewise.
8474         * config/i386/i386-options.c (ix86_option_override_internal): Likewise.
8475         * config/i386/i386.c (x86_64_elf_section_type_flags): Likewise.
8476         (ix86_md_asm_adjust): Likewise.
8477         * config/i386/intelmic-mkoffload.c (STR): Likewise.
8478         * config/i386/winnt.c (i386_pe_asm_named_section): Likewise.
8479         (i386_pe_file_end): Likewise.
8480         * config/ia64/ia64.c (ia64_in_small_data_p): Likewise.
8481         (ia64_section_type_flags): Likewise.
8482         * config/mips/driver-native.c (host_detect_local_cpu): Likewise.
8483         * config/mips/mips.c (mips_handle_interrupt_attr): Likewise.
8484         (mips16_stub_function_p): Likewise.
8485         (mips_function_rodata_section): Likewise.
8486         * config/msp430/msp430.c (msp430_mcu_name): Likewise.
8487         (msp430_function_section): Likewise.
8488         (msp430_section_type_flags): Likewise.
8489         (msp430_expand_helper): Likewise.
8490         * config/nios2/nios2.c (nios2_small_section_name_p): Likewise.
8491         (nios2_valid_target_attribute_rec): Likewise.
8492         * config/nvptx/mkoffload.c (process): Likewise.
8493         (STR): Likewise.
8494         * config/pa/som.h: Likewise.
8495         * config/pdp11/pdp11.c (pdp11_output_ident): Likewise.
8496         * config/riscv/riscv.c (riscv_elf_select_rtx_section): Likewise.
8497         * config/rs6000/rs6000.c (VTABLE_NAME_P): Likewise.
8498         (rs6000_inner_target_options): Likewise.
8499         * config/s390/driver-native.c (s390_host_detect_local_cpu): Likewise.
8500         * config/sparc/driver-sparc.c (host_detect_local_cpu): Likewise.
8501         * config/vax/vax.c (vax_output_int_move): Likewise.
8502         * config/vms/vms-ld.c (startswith): Likewise.
8503         (process_args): Likewise.
8504         (main): Likewise.
8505         * config/vms/vms.c: Likewise.
8506
8507 2021-05-18  Jakub Jelinek  <jakub@redhat.com>
8508
8509         PR rtl-optimization/100590
8510         * regcprop.c (copyprop_hardreg_forward_1): Only DCE dead sets if
8511         they are NONJUMP_INSN_P.
8512
8513 2021-05-18  Jakub Jelinek  <jakub@redhat.com>
8514
8515         PR c++/100580
8516         * function.c (push_dummy_function): Set DECL_ARTIFICIAL and
8517         DECL_ASSEMBLER_NAME on the fn_decl.
8518
8519 2021-05-18  Jakub Jelinek  <jakub@redhat.com>
8520
8521         PR tree-optimization/94589
8522         * tree-ssa-phiopt.c (spaceship_replacement): Pattern match
8523         phi result used in (res & ~1) == 0 comparison as res >= 0 as
8524         res == 2 would be UB with -ffinite-math-only.
8525
8526 2021-05-18  Martin Liska  <mliska@suse.cz>
8527
8528         * Makefile.in: genversion.o should depend on DATESTAMP.
8529
8530 2021-05-18  Claudiu Zissulescu  <claziss@synopsys.com>
8531
8532         * config/arc/simdext.md (negv2si2): Remove round bracket.
8533
8534 2021-05-18  Andreas Krebbel  <krebbel@linux.ibm.com>
8535
8536         * config/s390/s390-c.c (s390_cpu_cpp_builtins_internal): Define
8537         _Bool as macro expanding to _Bool.
8538
8539 2021-05-18  Andreas Krebbel  <krebbel@linux.ibm.com>
8540
8541         PR c++/100281
8542         * tree.c (build_reference_type_for_mode)
8543         (build_pointer_type_for_mode): Pick pointer mode if MODE argument
8544         is VOIDmode.
8545         (build_reference_type, build_pointer_type): Invoke
8546         build_*_type_for_mode with VOIDmode.
8547
8548 2021-05-17  Andrew MacLeod  <amacleod@redhat.com>
8549
8550         PR tree-optimization/100512
8551         * gimple-range-cache.cc (ranger_cache::set_global_range): Mark const
8552         and non-zero pointer ranges as invariant.
8553         * gimple-range.cc (gimple_ranger::range_of_stmt): Remove pointer
8554         processing from here.
8555
8556 2021-05-17  Tom de Vries  <tdevries@suse.de>
8557
8558         PR target/100497
8559         * config/nvptx/nvptx-protos.h (nvptx_output_atomic_insn): Declare
8560         * config/nvptx/nvptx.c (nvptx_output_barrier)
8561         (nvptx_output_atomic_insn): New function.
8562         (nvptx_print_operand): Add support for 'B'.
8563         * config/nvptx/nvptx.md: Use nvptx_output_atomic_insn for atomic
8564         insns.
8565
8566 2021-05-17  Aldy Hernandez  <aldyh@redhat.com>
8567
8568         PR tree-optimization/100349
8569         * vr-values.c (bounds_of_var_in_loop): Bail if scev returns
8570           NULL.
8571
8572 2021-05-17  Tamar Christina  <tamar.christina@arm.com>
8573
8574         * config/aarch64/driver-aarch64.c (DEFAULT_ARCH): New.
8575         (host_detect_local_cpu): Use it.
8576
8577 2021-05-17  Martin Liska  <mliska@suse.cz>
8578
8579         * doc/invoke.texi: Add 2 missing dots.
8580
8581 2021-05-17  Marius Hillenbrand  <mhillen@linux.ibm.com>
8582
8583         PR bootstrap/100552
8584         * configure.ac: Replace pattern substitution with call to sed.
8585         * configure: Regenerate.
8586
8587 2021-05-17  Richard Biener  <rguenther@suse.de>
8588
8589         PR middle-end/100582
8590         * tree.c (array_at_struct_end_p): Get to the base of the
8591         reference before looking for the underlying decl.
8592
8593 2021-05-17  Joern Rennecke  <joern.rennecke@embecosm.com>
8594
8595         * genoutput.c (validate_insn_alternatives) Make "wrong number of
8596         alternatives" message more specific, and remove assumption on where
8597         the problem is.
8598
8599 2021-05-17  Christophe Lyon  <christophe.lyon@linaro.org>
8600
8601         * config/arm/iterators.md (V16): New iterator.
8602         (VH_cvtto): New iterator.
8603         (v_cmp_result): Added V4HF and V8HF support.
8604         * config/arm/vec-common.md (vec_cmp<mode><v_cmp_result>): Use VDQWH.
8605         (vcond<mode><mode>): Likewise.
8606         (vcond_mask_<mode><v_cmp_result>): Likewise.
8607         (vcond<VH_cvtto><mode>): New expander.
8608
8609 2021-05-17  Christophe Lyon  <christophe.lyon@linaro.org>
8610
8611         * config/arm/arm-protos.h (arm_expand_vector_compare): Update
8612         prototype.
8613         * config/arm/arm.c (arm_expand_vector_compare): Add support for
8614         MVE.
8615         (arm_expand_vcond): Likewise.
8616         * config/arm/iterators.md (supf): Remove VCMPNEQ_S, VCMPEQQ_S,
8617         VCMPEQQ_N_S, VCMPNEQ_N_S.
8618         (VCMPNEQ, VCMPEQQ, VCMPEQQ_N, VCMPNEQ_N): Remove.
8619         * config/arm/mve.md (@mve_vcmp<mve_cmp_op>q_<mode>): Add '@' prefix.
8620         (@mve_vcmp<mve_cmp_op>q_f<mode>): Likewise.
8621         (@mve_vcmp<mve_cmp_op>q_n_f<mode>): Likewise.
8622         (@mve_vpselq_<supf><mode>): Likewise.
8623         (@mve_vpselq_f<mode>"): Likewise.
8624         * config/arm/neon.md (vec_cmp<mode><v_cmp_result): Enable for MVE
8625         and move to vec-common.md.
8626         (vec_cmpu<mode><mode>): Likewise.
8627         (vcond<mode><mode>): Likewise.
8628         (vcond<V_cvtto><mode>): Likewise.
8629         (vcondu<mode><v_cmp_result>): Likewise.
8630         (vcond_mask_<mode><v_cmp_result>): Likewise.
8631         * config/arm/unspecs.md (VCMPNEQ_U, VCMPNEQ_S, VCMPEQQ_S)
8632         (VCMPEQQ_N_S, VCMPNEQ_N_S, VCMPEQQ_U, CMPEQQ_N_U, VCMPNEQ_N_U)
8633         (VCMPGEQ_N_S, VCMPGEQ_S, VCMPGTQ_N_S, VCMPGTQ_S, VCMPLEQ_N_S)
8634         (VCMPLEQ_S, VCMPLTQ_N_S, VCMPLTQ_S, VCMPCSQ_N_U, VCMPCSQ_U)
8635         (VCMPHIQ_N_U, VCMPHIQ_U): Remove.
8636         * config/arm/vec-common.md (vec_cmp<mode><v_cmp_result): Moved
8637         from neon.md.
8638         (vec_cmpu<mode><mode>): Likewise.
8639         (vcond<mode><mode>): Likewise.
8640         (vcond<V_cvtto><mode>): Likewise.
8641         (vcondu<mode><v_cmp_result>): Likewise.
8642         (vcond_mask_<mode><v_cmp_result>): Likewise. Added unsafe math
8643         condition.
8644
8645 2021-05-17  liuhongt  <hongtao.liu@intel.com>
8646
8647         PR target/100549
8648         * config/i386/i386.c (ix86_gimple_fold_builtin): Use
8649         gsi_insert_seq_before instead.
8650
8651 2021-05-17  Christophe Lyon  <christophe.lyon@linaro.org>
8652
8653         * doc/sourcebuild.texi (arm_qbit_ok): Rename into...
8654         (arm_sat_ok): ...this.
8655
8656 2021-05-17  Martin Liska  <mliska@suse.cz>
8657
8658         * lto-wrapper.c (merge_flto_options): Factor out a new function.
8659         (merge_and_complain): Use it.
8660         (run_gcc): Merge also linker command line -flto=foo argument
8661         with IL files.
8662
8663 2021-05-16  Christophe Lyon  <christophe.lyon@linaro.org>
8664
8665         * config/arm/arm.h (CPP_SPEC): Remove error message about
8666         -mlittle-endian/-mbig-endian conflict.
8667
8668 2021-05-15  Bill Schmidt  <wschmidt@linux.ibm.com>
8669
8670         * config/rs6000/rs6000-c.c (rs6000_target_modify_macros): Define
8671         __ROP_PROTECT__ if -mrop-protect is selected.
8672
8673 2021-05-15  Bill Schmidt  <wschmidt@linux.ibm.com>
8674
8675         * config/rs6000/rs6000-internal.h (rs6000_stack): Add
8676         rop_hash_save_offset and rop_hash_size.
8677         * config/rs6000/rs6000-logue.c (rs6000_stack_info): Compute
8678         rop_hash_size and rop_hash_save_offset.
8679         (debug_stack_info): Dump rop_hash_save_offset and rop_hash_size.
8680         (rs6000_emit_prologue): Emit hashst[p] in prologue.
8681         (rs6000_emit_epilogue): Emit hashchk[p] in epilogue.
8682         * config/rs6000/rs6000.md (unspec): Add UNSPEC_HASHST and
8683         UNSPEC_HASHCHK.
8684         (hashst): New define_insn.
8685         (hashchk): Likewise.
8686
8687 2021-05-15  Bill Schmidt  <wschmidt@linux.ibm.com>
8688
8689         * config/rs6000/rs6000.c (rs6000_option_override_internal):
8690         Disable shrink wrap when inserting ROP-protect instructions.
8691         * config/rs6000/rs6000.opt (mrop-protect): New option.
8692         (mprivileged): Likewise.
8693         * doc/invoke.texi: Document mrop-protect and mprivileged.
8694
8695 2021-05-15  Hans-Peter Nilsson  <hp@axis.com>
8696
8697         * reorg.c (fill_slots_from_thread): Reinstate code typoed out in
8698         "Remove CC0".
8699
8700 2021-05-15  Martin Jambor  <mjambor@suse.cz>
8701
8702         Revert:
8703         2021-05-13  Martin Jambor  <mjambor@suse.cz>
8704
8705         PR tree-optimization/100453
8706         * tree-sra.c (sra_modify_assign): All const base accesses do not
8707         need refreshing, not just those from decl_pool.
8708         (sra_modify_assign): Do not refresh into a const base decl.
8709
8710 2021-05-15  Jakub Jelinek  <jakub@redhat.com>
8711
8712         PR rtl-optimization/100342
8713         * regcprop.c (copy_value): When copying a source reg in a wider
8714         mode than it has recorded for the value, adjust recorded destination
8715         mode too or punt if !REG_CAN_CHANGE_MODE_P.
8716
8717 2021-05-14  Jason Merrill  <jason@redhat.com>
8718
8719         * intl.h: Add comments.
8720
8721 2021-05-14  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
8722
8723         * config/aarch64/aarch64-simd.md
8724         (aarch64_sqdml<SBINQOPS:as>l2_lane<mode>_internal): Split into...
8725         (aarch64_sqdmlsl2_lane<mode>_internal): ... This...
8726         (aarch64_sqdmlal2_lane<mode>_internal): ... And this.
8727         (aarch64_sqdml<SBINQOPS:as>l2_laneq<mode>_internal): Split into ...
8728         (aarch64_sqdmlsl2_laneq<mode>_internal): ... This...
8729         (aarch64_sqdmlal2_laneq<mode>_internal): ... And this.
8730         (aarch64_sqdml<SBINQOPS:as>l2_n<mode>_internal): Split into...
8731         (aarch64_sqdmlsl2_n<mode>_internal): ... This...
8732         (aarch64_sqdmlal2_n<mode>_internal): ... And this.
8733
8734 2021-05-14  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
8735
8736         PR target/66791
8737         * config/arm/arm_neon.h (vtst_s8): Replace call to vtst builtin with it's
8738         boolean logic equivalent.
8739         (vtst_s16): Likewise.
8740         (vtst_s32): Likewise.
8741         (vtst_u8): Likewise.
8742         (vtst_u16): Likewise.
8743         (vtst_u32): Likewise.
8744         (vtst_p8): Likewise.
8745         (vtst_p16): Likewise.
8746         (vtstq_s8): Likewise.
8747         (vtstq_s16): Likewise.
8748         (vtstq_s32): Likewise.
8749         (vtstq_u8): Likewise.
8750         (vtstq_u16): Likewise.
8751         (vtstq_u32): Likewise.
8752         (vtstq_p8): Likewise.
8753         (vtstq_p16): Likewise.
8754         * config/arm/arm_neon_builtins.def: Remove entry for vtst.
8755         * config/arm/neon.md (neon_vtst<mode>): Remove pattern.
8756
8757 2021-05-14  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
8758
8759         * config/aarch64/aarch64-simd.md (aarch64_sqdmlal2<mode>): Merge into...
8760         (aarch64_sqdml<SBINQOPS:as>l2<mode>): ... This.
8761         (aarch64_sqdmlsl2<mode>): Delete.
8762         (aarch64_sqdmlal2_lane<mode>): Merge this...
8763         (aarch64_sqdmlsl2_lane<mode>): ... And this...
8764         (aarch64_sqdml<SBINQOPS:as>l2_lane<mode>): ... Into this.
8765         (aarch64_sqdmlal2_laneq<mode>): Merge this...
8766         (aarch64_sqdmlsl2_laneq<mode>): ... And this...
8767         (aarch64_sqdml<SBINQOPS:as>l2_laneq<mode>): ... Into this.
8768         (aarch64_sqdmlal2_n<mode>): Merge this...
8769         (aarch64_sqdmlsl2_n<mode>): ... And this...
8770         (aarch64_sqdml<SBINQOPS:as>l2_n<mode>): ... Into this.
8771
8772 2021-05-13  Martin Sebor  <msebor@redhat.com>
8773
8774         PR middle-end/100574
8775         * builtins.c (access_ref::get_ref): Improve detection of PHIs with
8776         all null arguments.
8777
8778 2021-05-13  Martin Sebor  <msebor@redhat.com>
8779
8780         PR tree-optimization/93100
8781         PR middle-end/98583
8782         * tree-ssa-uninit.c (check_defs): Exclude intrinsic functions that
8783         don't modify referenced objects.
8784
8785 2021-05-13  Martin Jambor  <mjambor@suse.cz>
8786
8787         PR tree-optimization/100453
8788         * tree-sra.c (sra_modify_assign): All const base accesses do not
8789         need refreshing, not just those from decl_pool.
8790         (sra_modify_assign): Do not refresh into a const base decl.
8791
8792 2021-05-13  Martin Liska  <mliska@suse.cz>
8793
8794         * tree-ssa-dom.c: Remove m_simplifier.
8795
8796 2021-05-13  Richard Earnshaw  <rearnsha@arm.com>
8797
8798         PR target/100563
8799         * config/arm/arm.c (arm_canonicalize_comparison): Correctly
8800         canonicalize DImode inequality comparisons against the
8801         maximum integral value.
8802
8803 2021-05-13  Jakub Jelinek  <jakub@redhat.com>
8804
8805         PR tree-optimization/98856
8806         * config/i386/i386.c (ix86_shift_rotate_cost): Add CODE argument.
8807         Expect V2DI and V4DI arithmetic right shifts to be emulated.
8808         (ix86_rtx_costs, ix86_add_stmt_cost): Adjust ix86_shift_rotate_cost
8809         caller.
8810         * config/i386/i386-expand.c (expand_vec_perm_2perm_interleave,
8811         expand_vec_perm_2perm_pblendv): New functions.
8812         (ix86_expand_vec_perm_const_1): Use them.
8813         * config/i386/sse.md (ashr<mode>3<mask_name>): Rename to ...
8814         (<mask_codefor>ashr<mode>3<mask_name>): ... this.
8815         (ashr<mode>3): New define_expand with VI248_AVX512BW iterator.
8816         (ashrv4di3): New define_expand.
8817         (ashrv2di3): Change condition to TARGET_SSE2, handle !TARGET_XOP
8818         and !TARGET_AVX512VL expansion.
8819
8820 2021-05-13  Uroš Bizjak  <ubizjak@gmail.com>
8821
8822         PR target/100581
8823         * config/i386/i386-expand.c (ix86_expand_sse_movcc): Force mode
8824         sizes < 16 to a register when constructing vpcmov pattern.
8825         * config/i386/mmx.md (*xop_pcmov_<mode>): Use MMXMODE124 mode.
8826
8827 2021-05-13  Martin Liska  <mliska@suse.cz>
8828
8829         * gcov-io.c (gcov_write_block): Remove.
8830         (gcov_write_words): Likewise.
8831         (gcov_read_words): Re-implement using gcov_read_bytes.
8832         (gcov_allocate): Remove.
8833         (GCOV_BLOCK_SIZE): Likewise.
8834         (struct gcov_var): Remove most of the fields.
8835         (gcov_position): Implement with ftell.
8836         (gcov_rewrite): Remove setting of start and offset fields.
8837         (from_file): Re-format.
8838         (gcov_open): Remove setbuf call. It should not be needed.
8839         (gcov_close): Remove internal buffer handling.
8840         (gcov_magic): Use __builtin_bswap32.
8841         (gcov_write_counter): Use directly gcov_write_unsigned.
8842         (gcov_write_string): Use direct fwrite and do not round
8843         to 4 bytes.
8844         (gcov_seek): Use directly fseek.
8845         (gcov_write_tag): Use gcov_write_unsigned directly.
8846         (gcov_write_length): Likewise.
8847         (gcov_write_tag_length): Likewise.
8848         (gcov_read_bytes): Use directly fread.
8849         (gcov_read_unsigned): Use gcov_read_words.
8850         (gcov_read_counter): Likewise.
8851         (gcov_read_string): Use gcov_read_bytes.
8852         * gcov-io.h (GCOV_WORD_SIZE): Adjust to reflect
8853         that size is not in bytes, but words (4B).
8854         (GCOV_TAG_FUNCTION_LENGTH): Likewise.
8855         (GCOV_TAG_ARCS_LENGTH): Likewise.
8856         (GCOV_TAG_ARCS_NUM): Likewise.
8857         (GCOV_TAG_COUNTER_LENGTH): Likewise.
8858         (GCOV_TAG_COUNTER_NUM): Likewise.
8859         (GCOV_TAG_SUMMARY_LENGTH): Likewise.
8860
8861 2021-05-13  liuhongt  <hongtao.liu@intel.com>
8862
8863         PR target/94680
8864         * config/i386/sse.md (ssedoublevecmode): Add attribute for
8865         V64QI/V32HI/V16SI/V4DI.
8866         (ssehalfvecmode): Add attribute for V2DI/V2DF.
8867         (*vec_concatv4si_0): Extend to VI124_128.
8868         (*vec_concat<mode>_0): New pre-reload splitter.
8869         * config/i386/predicates.md (movq_parallel): New predicate.
8870
8871 2021-05-13  Alexandre Oliva  <oliva@adacore.com>
8872
8873         * targhooks.c (default_zero_call_used_regs): Retry using
8874         successfully-zeroed registers as sources.
8875
8876 2021-05-12  Tobias Burnus  <tobias@codesourcery.com>
8877
8878         * omp-low.c (finish_taskreg_scan): Use the proper detach decl.
8879
8880 2021-05-12  Aldy Hernandez  <aldyh@redhat.com>
8881
8882         PR c/100521
8883         * gimple-range.cc (range_of_builtin_call): Skip out on
8884           processing __builtin_clz when varying.
8885
8886 2021-05-12  Tom de Vries  <tdevries@suse.de>
8887
8888         PR target/96005
8889         * config/nvptx/nvptx-opts.h (enum ptx_version): New enum.
8890         * config/nvptx/nvptx.c (nvptx_file_start): Print .version according
8891         to ptx_version_option.
8892         * config/nvptx/nvptx.h (TARGET_PTX_6_3): Define.
8893         * config/nvptx/nvptx.md (define_insn "nvptx_shuffle<mode>")
8894         (define_insn "nvptx_vote_ballot"): Use sync variant for
8895         TARGET_PTX_6_3.
8896         * config/nvptx/nvptx.opt (ptx_version): Add enum.
8897         (mptx): Add option.
8898         * doc/invoke.texi (Nvidia PTX Options): Add mptx item.
8899
8900 2021-05-12  Richard Biener  <rguenther@suse.de>
8901
8902         PR tree-optimization/100566
8903         * tree-ssa-sccvn.c (dominated_by_p_w_unex): Properly handle
8904         allow_back for all edge queries.
8905
8906 2021-05-12  liuhongt  <hongtao.liu@intel.com>
8907
8908         PR target/99908
8909         * config/i386/sse.md (<sse4_1_avx2>_pblendvb): Add
8910         splitters for pblendvb of NOT mask register.
8911
8912 2021-05-12  Richard Biener  <rguenther@suse.de>
8913
8914         PR tree-optimization/100519
8915         * tree-ssa-reassoc.c (can_associate_p): Split into...
8916         (can_associate_op_p): ... this
8917         (can_associate_type_p): ... and this.
8918         (is_reassociable_op): Call can_associate_op_p.
8919         (break_up_subtract_bb): Call the appropriate predicates.
8920         (reassociate_bb): Likewise.
8921
8922 2021-05-12  Martin Liska  <mliska@suse.cz>
8923
8924         * lto-wrapper.c (merge_and_complain): Merge -flto=arg options.
8925         (run_gcc): Use -flto argument detection for merged
8926         fdecoded_options.
8927
8928 2021-05-12  Martin Liska  <mliska@suse.cz>
8929
8930         * lto-wrapper.c (print_lto_docs_link): New function.
8931         (run_gcc): Print warning about missing job server detection
8932         after we know NR of partitions. Do the same for -flto{,=1}.
8933         * opts.c (get_option_html_page): Support -flto option.
8934
8935 2021-05-12  Martin Liska  <mliska@suse.cz>
8936
8937         * lto-wrapper.c (get_options_from_collect_gcc_options): Change
8938         return type.
8939         (append_option): Remove.
8940         (find_option): Rework to use the vector type.
8941         (remove_option): Remove.
8942         (merge_and_complain): Use vectors for cl_decoded_option data
8943         type arguments.
8944         (append_compiler_options): Likewise.
8945         (append_diag_options): Likewise.
8946         (append_linker_options): Likewise.
8947         (append_offload_options): Likewise.
8948         (compile_offload_image): Likewise.
8949         (compile_images_for_offload_targets): Likewise.
8950         (find_and_merge_options): Likewise.
8951         (run_gcc): Likewise.
8952
8953 2021-05-12  Bernd Edlinger  <bernd.edlinger@hotmail.de>
8954
8955         PR debug/100515
8956         * dwarf2out.c (dwarf2out_finish): Set
8957         have_multiple_function_sections with multi-range text_section.
8958
8959 2021-05-12  Martin Liska  <mliska@suse.cz>
8960
8961         PR bootstrap/100560
8962         * Makefile.in: Remove version.h from linker command line.
8963
8964 2021-05-12  Richard Biener  <rguenther@suse.de>
8965
8966         PR middle-end/100547
8967         * rtl.h (rtvec_alloc): Make argument size_t.
8968         * rtl.c (rtvec_alloc): Verify the count is less than INT_MAX.
8969
8970 2021-05-12  Jakub Jelinek  <jakub@redhat.com>
8971
8972         PR middle-end/100508
8973         * cfgexpand.c (expand_debug_expr): For DEBUG_EXPR_DECL with vector
8974         type, don't reuse DECL_RTL if it has different mode, instead force
8975         creation of a new DEBUG_EXPR.
8976
8977 2021-05-12  Jakub Jelinek  <jakub@redhat.com>
8978             Marc Glisse  <marc.glisse@inria.fr>
8979
8980         PR tree-optimization/94589
8981         * match.pd ((X & Y) == X -> (X & ~Y) == 0,
8982         (X | Y) == Y -> (X & ~Y) == 0): New GIMPLE simplifications.
8983
8984 2021-05-12  Uroš Bizjak  <ubizjak@gmail.com>
8985
8986         PR target/98218
8987         * config/i386/i386-expand.c (ix86_expand_sse_movcc): Handle V2SF mode.
8988         * config/i386/mmx.md (MMXMODE124): New mode iterator.
8989         (V2FI): Ditto.
8990         (mmxintvecmode): New mode attribute.
8991         (mmxintvecmodelower): Ditto.
8992         (*mmx_maskcmpv2sf3_comm): New insn pattern.
8993         (*mmx_maskcmpv2sf3): Ditto.
8994         (vec_cmpv2sfv2si): New expander.
8995         (vcond<V2FI:mode>v2si): Ditto.
8996         (mmx_vlendvps): New insn pattern.
8997         (vcond<MMXMODE124:mode><MMXMODEI:mode>): Also handle V2SFmode.
8998         (vcondu<MMXMODE124:mode><MMXMODEI:mode>): Ditto.
8999         (vcond_mask_<mode><mmxintvecmodelower>): Ditto.
9000
9001 2021-05-11  Martin Sebor  <msebor@redhat.com>
9002
9003         PR middle-end/21433
9004         * expr.c (expand_expr_real_1): Replace unreachable code with an assert.
9005
9006 2021-05-11  Richard Biener  <rguenther@suse.de>
9007
9008         * gimple-fold.c (gimple_fold_call): Do not call
9009         maybe_fold_reference on call arguments or the static chain.
9010         (fold_stmt_1): Do not call maybe_fold_reference on GIMPLE_ASM
9011         inputs.
9012
9013 2021-05-11  Martin Liska  <mliska@suse.cz>
9014
9015         * builtins.def (DEF_HSAIL_BUILTIN): Remove.
9016         (DEF_HSAIL_ATOMIC_BUILTIN): Likewise.
9017         (DEF_HSAIL_SAT_BUILTIN): Likewise.
9018         (DEF_HSAIL_INTR_BUILTIN): Likewise.
9019         (DEF_HSAIL_CVT_ZEROI_SAT_BUILTIN): Likewise.
9020         * doc/frontends.texi: Remove BRIG.
9021         * doc/install.texi: Likewise.
9022         * doc/invoke.texi: Likewise.
9023         * doc/standards.texi: Likewise.
9024         * brig-builtins.def: Removed.
9025         * brig/ChangeLog: Removed.
9026         * brig/Make-lang.in: Removed.
9027         * brig/brig-builtins.h: Removed.
9028         * brig/brig-c.h: Removed.
9029         * brig/brig-lang.c: Removed.
9030         * brig/brigfrontend/brig-arg-block-handler.cc: Removed.
9031         * brig/brigfrontend/brig-atomic-inst-handler.cc: Removed.
9032         * brig/brigfrontend/brig-basic-inst-handler.cc: Removed.
9033         * brig/brigfrontend/brig-branch-inst-handler.cc: Removed.
9034         * brig/brigfrontend/brig-cmp-inst-handler.cc: Removed.
9035         * brig/brigfrontend/brig-code-entry-handler.cc: Removed.
9036         * brig/brigfrontend/brig-code-entry-handler.h: Removed.
9037         * brig/brigfrontend/brig-comment-handler.cc: Removed.
9038         * brig/brigfrontend/brig-control-handler.cc: Removed.
9039         * brig/brigfrontend/brig-copy-move-inst-handler.cc: Removed.
9040         * brig/brigfrontend/brig-cvt-inst-handler.cc: Removed.
9041         * brig/brigfrontend/brig-fbarrier-handler.cc: Removed.
9042         * brig/brigfrontend/brig-function-handler.cc: Removed.
9043         * brig/brigfrontend/brig-function.cc: Removed.
9044         * brig/brigfrontend/brig-function.h: Removed.
9045         * brig/brigfrontend/brig-inst-mod-handler.cc: Removed.
9046         * brig/brigfrontend/brig-label-handler.cc: Removed.
9047         * brig/brigfrontend/brig-lane-inst-handler.cc: Removed.
9048         * brig/brigfrontend/brig-machine.c: Removed.
9049         * brig/brigfrontend/brig-machine.h: Removed.
9050         * brig/brigfrontend/brig-mem-inst-handler.cc: Removed.
9051         * brig/brigfrontend/brig-module-handler.cc: Removed.
9052         * brig/brigfrontend/brig-queue-inst-handler.cc: Removed.
9053         * brig/brigfrontend/brig-seg-inst-handler.cc: Removed.
9054         * brig/brigfrontend/brig-signal-inst-handler.cc: Removed.
9055         * brig/brigfrontend/brig-to-generic.cc: Removed.
9056         * brig/brigfrontend/brig-to-generic.h: Removed.
9057         * brig/brigfrontend/brig-util.cc: Removed.
9058         * brig/brigfrontend/brig-util.h: Removed.
9059         * brig/brigfrontend/brig-variable-handler.cc: Removed.
9060         * brig/brigfrontend/hsa-brig-format.h: Removed.
9061         * brig/brigfrontend/phsa.h: Removed.
9062         * brig/brigspec.c: Removed.
9063         * brig/config-lang.in: Removed.
9064         * brig/gccbrig.texi: Removed.
9065         * brig/lang-specs.h: Removed.
9066         * brig/lang.opt: Removed.
9067
9068 2021-05-11  Richard Biener  <rguenther@suse.de>
9069
9070         PR ipa/100513
9071         * ipa-param-manipulation.c
9072         (ipa_param_body_adjustments::modify_call_stmt): Avoid
9073         altering SSA_NAME_DEF_STMT by adjusting the calls LHS
9074         via gimple_call_lhs_ptr.
9075
9076 2021-05-11  Alex Coplan  <alex.coplan@arm.com>
9077
9078         PR target/99725
9079         * config/arm/arm.c (cmse_nonsecure_call_inline_register_clear):
9080         Avoid emitting CFA adjusts on the sp if we have the fp.
9081
9082 2021-05-11  Richard Sandiford  <richard.sandiford@arm.com>
9083
9084         * config/aarch64/iterators.md (VMUL_CHANGE_NLANES): Delete.
9085         (VMULD): New iterator.
9086         (VCOND): Handle V4HF and V8HF.
9087         (VCONQ): Fix entry for V2SF.
9088         * config/aarch64/aarch64-simd.md (mul_lane<mode>3): Use VMULD
9089         instead of VMUL.  Use a 64-bit vector mode for the indexed operand.
9090         (*aarch64_mul3_elt_<vswap_width_name><mode>): Merge with...
9091         (mul_laneq<mode>3): ...this define_insn.  Use VMUL instead of VDQSF.
9092         Use a 128-bit vector mode for the indexed operand.  Use stype for
9093         the scheduling type.
9094
9095 2021-05-11  Richard Biener  <rguenther@suse.de>
9096
9097         * gimple-fold.c (maybe_fold_reference): Only return
9098         is_gimple_min_invariant values.
9099
9100 2021-05-11  Richard Biener  <rguenther@suse.de>
9101
9102         PR middle-end/100509
9103         * gimple-fold.c (fold_gimple_assign): Only call
9104         get_symbol_constant_value on register type symbols.
9105
9106 2021-05-11  Srinath Parvathaneni  <srinath.parvathaneni@arm.com>
9107             Joe Ramsay   <joe.ramsay@arm.com>
9108
9109         PR target/100419
9110         * config/arm/arm_mve.h (__arm_vstrwq_scatter_offset): Fix wrong arguments.
9111         (__arm_vcmpneq): Remove duplicate definition.
9112         (__arm_vstrwq_scatter_offset_p): Likewise.
9113         (__arm_vmaxq_x): Likewise.
9114         (__arm_vmlsdavaq): Likewise.
9115         (__arm_vmlsdavaxq): Likewise.
9116         (__arm_vmlsdavq_p): Likewise.
9117         (__arm_vmlsdavxq_p): Likewise.
9118         (__arm_vrmlaldavhaq): Likewise.
9119         (__arm_vstrbq_p): Likewise.
9120         (__arm_vstrbq_scatter_offset): Likewise.
9121         (__arm_vstrbq_scatter_offset_p): Likewise.
9122         (__arm_vstrdq_scatter_offset): Likewise.
9123         (__arm_vstrdq_scatter_offset_p): Likewise.
9124         (__arm_vstrdq_scatter_shifted_offset): Likewise.
9125         (__arm_vstrdq_scatter_shifted_offset_p): Likewise.
9126
9127 2021-05-11  Jakub Jelinek  <jakub@redhat.com>
9128
9129         PR middle-end/100471
9130         * omp-low.c (lower_omp_task_reductions): For OMP_TASKLOOP, if data
9131         is 0, bypass the reduction loop including
9132         GOMP_taskgroup_reduction_unregister call.
9133
9134 2021-05-11  Kewen Lin  <linkw@linux.ibm.com>
9135
9136         * config/rs6000/rs6000.c (struct rs6000_cost_data): New member
9137         costing_for_scalar.
9138         (rs6000_density_test): Early return if costing_for_scalar is true.
9139         (rs6000_init_cost): Init costing_for_scalar of rs6000_cost_data.
9140
9141 2021-05-11  Kewen Lin  <linkw@linux.ibm.com>
9142
9143         * doc/tm.texi: Regenerated.
9144         * target.def (init_cost): Add new parameter costing_for_scalar.
9145         * targhooks.c (default_init_cost): Adjust for new parameter.
9146         * targhooks.h (default_init_cost): Likewise.
9147         * tree-vect-loop.c (_loop_vec_info::_loop_vec_info): Likewise.
9148         (vect_compute_single_scalar_iteration_cost): Likewise.
9149         (vect_analyze_loop_2): Likewise.
9150         * tree-vect-slp.c (_bb_vec_info::_bb_vec_info): Likewise.
9151         (vect_bb_vectorization_profitable_p): Likewise.
9152         * tree-vectorizer.h (init_cost): Likewise.
9153         * config/aarch64/aarch64.c (aarch64_init_cost): Likewise.
9154         * config/i386/i386.c (ix86_init_cost): Likewise.
9155         * config/rs6000/rs6000.c (rs6000_init_cost): Likewise.
9156
9157 2021-05-11  Kewen Lin  <linkw@linux.ibm.com>
9158
9159         * config/rs6000/rs6000.c (rs6000_vect_nonmem): Renamed to
9160         vect_nonmem and moved into...
9161         (struct rs6000_cost_data): ...here.
9162         (rs6000_init_cost): Use vect_nonmem of cost_data instead.
9163         (rs6000_add_stmt_cost): Likewise.
9164         (rs6000_finish_cost): Likewise.
9165
9166 2021-05-10  Eric Botcazou  <ebotcazou@adacore.com>
9167
9168         * range-op.cc (get_bool_state): Adjust head comment.
9169         (operator_not_equal::op1_range): Fix comment.
9170         (operator_bitwise_xor::op1_range): Remove call to gcc_unreachable.
9171
9172 2021-05-10  Martin Sebor  <msebor@redhat.com>
9173
9174         PR middle-end/100425
9175         PR middle-end/100510
9176         * gimple-ssa-warn-alloca.c (pass_walloca::firast_time_p): Rename...
9177         (pass_walloca::xlimit_certain_p): ...to this.
9178         (pass_walloca::gate): Execute for any kind of handled warning.
9179         (pass_walloca::execute): Avoid issuing "maybe" and "unbounded"
9180         warnings when xlimit_certain_p is set.
9181
9182 2021-05-10  Pat Haugen  <pthaugen@linux.ibm.com>
9183
9184         * config/rs6000/rs6000.c (rs6000_ira_change_pseudo_allocno_class):
9185         Return ALTIVEC_REGS if that is best_class.
9186         (rs6000_compute_pressure_classes): Add ALTIVEC_REGS.
9187
9188 2021-05-10  Christophe Lyon  <christophe.lyon@linaro.org>
9189
9190         * config/arm/arm.h (CPP_SPEC): Remove error message about
9191         -mfloat-abi.
9192
9193 2021-05-10  Martin Jambor  <mjambor@suse.cz>
9194
9195         * ipa-prop.h (IPA_NODE_REF): Removed.
9196         (IPA_NODE_REF_GET_CREATE): Likewise.
9197         (IPA_EDGE_REF): Likewise.
9198         (IPA_EDGE_REF_GET_CREATE): Likewise.
9199         (IS_VALID_JUMP_FUNC_INDEX): Likewise.
9200         * ipa-cp.c (print_all_lattices): Replaced IPA_NODE_REF with a direct
9201         use of ipa_node_params_sum.
9202         (ipcp_versionable_function_p): Likewise.
9203         (push_node_to_stack): Likewise.
9204         (pop_node_from_stack): Likewise.
9205         (set_single_call_flag): Replaced two IPA_NODE_REF with one single
9206         direct use of ipa_node_params_sum.
9207         (initialize_node_lattices): Replaced IPA_NODE_REF with a direct use of
9208         ipa_node_params_sum.
9209         (ipa_context_from_jfunc): Replaced IPA_EDGE_REF with a direct use of
9210         ipa_edge_args_sum.
9211         (ipcp_verify_propagated_values): Replaced IPA_NODE_REF with a direct
9212         use of ipa_node_params_sum.
9213         (self_recursively_generated_p): Likewise.
9214         (propagate_scalar_across_jump_function): Likewise.
9215         (propagate_context_across_jump_function): Replaced IPA_EDGE_REF with a
9216         direct use of ipa_edge_args_sum, moved the lookup after the early
9217         exit.  Replaced IPA_NODE_REF with a direct use of ipa_node_params_sum.
9218         (propagate_bits_across_jump_function): Replaced IPA_NODE_REF with
9219         direct uses of ipa_node_params_sum.
9220         (propagate_vr_across_jump_function): Likewise.
9221         (propagate_aggregate_lattice): Likewise.
9222         (propagate_aggs_across_jump_function): Likewise.
9223         (propagate_constants_across_call): Likewise, also replaced
9224         IPA_EDGE_REF with a direct use of ipa_edge_args_sum.
9225         (good_cloning_opportunity_p): Replaced IPA_NODE_REF with a direct use
9226         of ipa_node_params_sum.
9227         (estimate_local_effects): Likewise.
9228         (add_all_node_vals_to_toposort): Likewise.
9229         (propagate_constants_topo): Likewise.
9230         (ipcp_propagate_stage): Likewise.
9231         (ipcp_discover_new_direct_edges): Likewise.
9232         (calls_same_node_or_its_all_contexts_clone_p): Likewise.
9233         (cgraph_edge_brings_value_p): Likewise (in both overloaded functions).
9234         (get_info_about_necessary_edges): Likewise.
9235         (want_remove_some_param_p): Likewise.
9236         (create_specialized_node): Likewise.
9237         (self_recursive_pass_through_p): Likewise.
9238         (self_recursive_agg_pass_through_p): Likewise.
9239         (find_more_scalar_values_for_callers_subset): Likewise and also
9240         replaced IPA_EDGE_REF with direct uses of ipa_edge_args_sum, in one
9241         case replacing two of those with a single query.
9242         (find_more_contexts_for_caller_subset): Likewise for the
9243         ipa_polymorphic_call_context overload.
9244         (intersect_aggregates_with_edge): Replaced IPA_EDGE_REF with a direct
9245         use of ipa_edge_args_sum.  Replaced IPA_NODE_REF with direct uses of
9246         ipa_node_params_sum.
9247         (find_aggregate_values_for_callers_subset): Likewise, also reusing
9248         results of ipa_edge_args_sum->get.
9249         (cgraph_edge_brings_all_scalars_for_node): Replaced IPA_NODE_REF with
9250         direct uses of ipa_node_params_sum, replaced IPA_EDGE_REF with a
9251         direct use of ipa_edge_args_sum.
9252         (cgraph_edge_brings_all_agg_vals_for_node): Likewise, moved node
9253         summary query after the early exit and reused the result later.
9254         (decide_about_value): Replaced IPA_NODE_REF with a direct use of
9255         ipa_node_params_sum.
9256         (decide_whether_version_node): Likewise.  Removed re-querying for
9257         summaries after cloning.
9258         (spread_undeadness): Replaced IPA_NODE_REF with a direct use of
9259         ipa_node_params_sum.
9260         (has_undead_caller_from_outside_scc_p): Likewise, reusing results of
9261         some queries.
9262         (identify_dead_nodes): Likewise.
9263         (ipcp_store_bits_results): Replaced IPA_NODE_REF with direct uses of
9264         ipa_node_params_sum.
9265         (ipcp_store_vr_results): Likewise.
9266         * ipa-fnsummary.c (evaluate_properties_for_edge): Likewise.
9267         (ipa_fn_summary_t::duplicate): Likewise.
9268         (analyze_function_body): Likewise.
9269         (estimate_calls_size_and_time): Likewise.
9270         (ipa_cached_call_context::duplicate_from): Likewise.
9271         (ipa_call_context::equal_to): Likewise.
9272         (remap_edge_params): Likewise.
9273         (ipa_merge_fn_summary_after_inlining): Likewise.
9274         (inline_read_section): Likewise.
9275         * ipa-icf.c (sem_function::param_used_p): Likewise.
9276         * ipa-modref.c (compute_parm_map): Likewise.
9277         (compute_parm_map): Replaced IPA_EDGE_REF with a direct use of
9278         ipa_edge_args_sum.
9279         (get_access_for_fnspec): Replaced IPA_NODE_REF with a direct use of
9280         ipa_node_params_sum and replaced IPA_EDGE_REF with a direct use of
9281         ipa_edge_args_sum.
9282         * ipa-profile.c (check_argument_count): Likewise.
9283         * ipa-prop.c (ipa_alloc_node_params): Replaced IPA_NODE_REF_GET_CREATE
9284         with a direct use of ipa_node_params_sum.
9285         (ipa_initialize_node_params): Likewise.
9286         (ipa_print_node_jump_functions_for_edge): Replaced IPA_EDGE_REF with a
9287         direct use of ipa_edge_args_sum and reused the query result.
9288         (ipa_compute_jump_functions_for_edge): Replaced IPA_NODE_REF with a
9289         direct use of ipa_node_params_sum and replaced IPA_EDGE_REF with a
9290         direct use of ipa_edge_args_sum.
9291         (ipa_note_param_call): Replaced IPA_NODE_REF with a direct use of
9292         ipa_node_params_sum and reused the result of the query.
9293         (ipa_analyze_node): Likewise.
9294         (ipa_analyze_controlled_uses): Replaced IPA_NODE_REF with a direct use
9295         of ipa_node_params_sum.
9296         (update_jump_functions_after_inlining): Replaced IPA_EDGE_REF with
9297         direct uses of ipa_edge_args_sum.
9298         (update_indirect_edges_after_inlining): Replaced IPA_NODE_REF with
9299         direct uses of ipa_node_params_sum and replaced IPA_EDGE_REF with a
9300         direct use of ipa_edge_args_sum.  Removed superficial re-querying the
9301         top edge summary.
9302         (propagate_controlled_uses): Replaced IPA_NODE_REF with direct uses of
9303         ipa_node_params_sum and replaced IPA_EDGE_REF with a direct use of
9304         ipa_edge_args_sum.
9305         (ipa_propagate_indirect_call_infos): Replaced IPA_EDGE_REF with a
9306         direct use of ipa_edge_args_sum.
9307         (ipa_edge_args_sum_t::duplicate): Replaced IPA_NODE_REF with a direct
9308         use of ipa_node_params_sum.
9309         (ipa_print_node_params): Likewise.
9310         (ipa_write_node_info): Likewise and also replaced IPA_EDGE_REF with
9311         direct uses of ipa_edge_args_sum.
9312         (ipa_read_edge_info): Replaced IPA_EDGE_REF with a direct use of
9313         ipa_edge_args_sum.
9314         (ipa_read_node_info): Replaced IPA_NODE_REF with a direct use of
9315         ipa_node_params_sum.
9316         (ipa_prop_write_jump_functions): Likewise.  Move variable node to the
9317         scopes where it is used.
9318
9319 2021-05-10  Uroš Bizjak  <ubizjak@gmail.com>
9320
9321         * config/i386/i386-expand.c (ix86_expand_sse_movcc)
9322         <case E_V2SImode>: Force op_true to register.
9323
9324 2021-05-10  Christophe Lyon  <christophe.lyon@linaro.org>
9325
9326         * config/arm/iterators.md (MVE_FP_COMPARISONS): New.
9327         * config/arm/mve.md (mve_vcmp<mve_cmp_op>q_f<mode>)
9328         (mve_vcmp<mve_cmp_op>q_n_f<mode>): New, merge all vcmp_*f*
9329         patterns.
9330         (mve_vcmpeqq_f<mode>, mve_vcmpeqq_n_f<mode>, mve_vcmpgeq_f<mode>)
9331         (mve_vcmpgeq_n_f<mode>, mve_vcmpgtq_f<mode>)
9332         (mve_vcmpgtq_n_f<mode>, mve_vcmpleq_f<mode>)
9333         (mve_vcmpleq_n_f<mode>, mve_vcmpltq_f<mode>)
9334         (mve_vcmpltq_n_f<mode>, mve_vcmpneq_f<mode>)
9335         (mve_vcmpneq_n_f<mode>): Remove.
9336         * config/arm/unspecs.md (VCMPEQQ_F, VCMPEQQ_N_F, VCMPGEQ_F)
9337         (VCMPGEQ_N_F, VCMPGTQ_F, VCMPGTQ_N_F, VCMPLEQ_F, VCMPLEQ_N_F)
9338         (VCMPLTQ_F, VCMPLTQ_N_F, VCMPNEQ_F, VCMPNEQ_N_F): Remove.
9339
9340 2021-05-10  Christophe Lyon  <christophe.lyon@linaro.org>
9341
9342         * config/arm/iterators.md (MVE_COMPARISONS): New.
9343         (mve_cmp_op): New.
9344         (mve_cmp_type): New.
9345         * config/arm/mve.md (mve_vcmp<mve_cmp_op>q_<mode>): New, merge all
9346         mve_vcmp patterns.
9347         (mve_vcmpneq_<mode>, mve_vcmpcsq_n_<mode>, mve_vcmpcsq_<mode>)
9348         (mve_vcmpeqq_n_<mode>, mve_vcmpeqq_<mode>, mve_vcmpgeq_n_<mode>)
9349         (mve_vcmpgeq_<mode>, mve_vcmpgtq_n_<mode>, mve_vcmpgtq_<mode>)
9350         (mve_vcmphiq_n_<mode>, mve_vcmphiq_<mode>, mve_vcmpleq_n_<mode>)
9351         (mve_vcmpleq_<mode>, mve_vcmpltq_n_<mode>, mve_vcmpltq_<mode>)
9352         (mve_vcmpneq_n_<mode>, mve_vcmpltq_n_<mode>, mve_vcmpltq_<mode>)
9353         (mve_vcmpneq_n_<mode>): Remove.
9354
9355 2021-05-10  Christophe Lyon  <christophe.lyon@linaro.org>
9356
9357         * config/arm/arm_mve.h (__arm_vcmp*): Remove 's' suffix.
9358         * config/arm/arm_mve_builtins.def (vcmp*): Remove 's' suffix.
9359         * config/arm/mve.md (mve_vcmp*): Remove 's' suffix in pattern
9360         names.
9361
9362 2021-05-10  Christophe Lyon  <christophe.lyon@linaro.org>
9363
9364         * config/arm/arm_mve_builtins.def (vcmpneq_u): Remove.
9365         (vcmpneq_n_u): Likewise.
9366         (vcmpeqq_u,): Likewise.
9367         (vcmpeqq_n_u): Likewise.
9368         * config/arm/iterators.md (supf): Remove VCMPNEQ_U, VCMPEQQ_U,
9369         VCMPEQQ_N_U and VCMPNEQ_N_U.
9370         * config/arm/mve.md (mve_vcmpneq): Remove <supf> iteration.
9371         (mve_vcmpeqq_n): Likewise.
9372         (mve_vcmpeqq): Likewise.
9373         (mve_vcmpneq_n): Likewise.
9374
9375 2021-05-10  Christophe Lyon  <christophe.lyon@linaro.org>
9376
9377         * config/arm/arm_mve.h (__arm_vcmpeq*u*, __arm_vcmpne*u*): Call
9378         the 's' version of the builtin.
9379
9380 2021-05-10  Richard Biener  <rguenther@suse.de>
9381
9382         PR tree-optimization/100492
9383         * tree-loop-distribution.c (find_seed_stmts_for_distribution):
9384         Find nothing when the loop contains an irreducible region.
9385
9386 2021-05-10  Richard Biener  <rguenther@suse.de>
9387
9388         PR middle-end/100464
9389         PR c++/100468
9390         * gimple-fold.c (canonicalize_constructor_val): Do not set
9391         TREE_ADDRESSABLE.
9392
9393 2021-05-10  Richard Biener  <rguenther@suse.de>
9394
9395         PR tree-optimization/100434
9396         * tree-ssa-dse.c (initialize_ao_ref_for_dse): Handle
9397         call LHS.
9398         (dse_optimize_stmt): Handle call LHS by dropping the
9399         LHS or the whole call if it doesn't have other
9400         side-effects.
9401         (pass_dse::execute): Adjust.
9402
9403 2021-05-10  Martin Liska  <mliska@suse.cz>
9404
9405         * Makefile.in: Add missing genversion rule.
9406
9407 2021-05-10  Alex Coplan  <alex.coplan@arm.com>
9408
9409         PR target/99960
9410         * config/arm/mve.md (*mve_mov<mode>): Simplify output code. Use
9411         vldrw.u32 and vstrw.32 for V2D[IF]mode loads and stores.
9412
9413 2021-05-10  Martin Liska  <mliska@suse.cz>
9414
9415         * builtins.c (is_builtin_name): Use startswith
9416         function instead of strncmp.
9417         * collect2.c (main): Likewise.
9418         (has_lto_section): Likewise.
9419         (scan_libraries): Likewise.
9420         * coverage.c (coverage_checksum_string): Likewise.
9421         (coverage_init): Likewise.
9422         * dwarf2out.c (is_cxx): Likewise.
9423         (gen_compile_unit_die): Likewise.
9424         * gcc-ar.c (main): Likewise.
9425         * gcc.c (init_spec): Likewise.
9426         (read_specs): Likewise.
9427         (execute): Likewise.
9428         (check_live_switch): Likewise.
9429         * genattrtab.c (write_attr_case): Likewise.
9430         (IS_ATTR_GROUP): Likewise.
9431         * gencfn-macros.c (main): Likewise.
9432         * gengtype.c (type_for_name): Likewise.
9433         (gen_rtx_next): Likewise.
9434         (get_file_langdir): Likewise.
9435         (write_local): Likewise.
9436         * genmatch.c (get_operator): Likewise.
9437         (get_operand_type): Likewise.
9438         (expr::gen_transform): Likewise.
9439         * genoutput.c (validate_optab_operands): Likewise.
9440         * incpath.c (add_sysroot_to_chain): Likewise.
9441         * langhooks.c (lang_GNU_C): Likewise.
9442         (lang_GNU_CXX): Likewise.
9443         (lang_GNU_Fortran): Likewise.
9444         (lang_GNU_OBJC): Likewise.
9445         * lto-wrapper.c (run_gcc): Likewise.
9446         * omp-general.c (omp_max_simt_vf): Likewise.
9447         * omp-low.c (omp_runtime_api_call): Likewise.
9448         * opts-common.c (parse_options_from_collect_gcc_options): Likewise.
9449         * read-rtl-function.c (function_reader::read_rtx_operand_r): Likewise.
9450         * real.c (real_from_string): Likewise.
9451         * selftest.c (assert_str_startswith): Likewise.
9452         * timevar.c (timer::validate_phases): Likewise.
9453         * tree.c (get_file_function_name): Likewise.
9454         * ubsan.c (ubsan_use_new_style_p): Likewise.
9455         * varasm.c (default_function_rodata_section): Likewise.
9456         (incorporeal_function_p): Likewise.
9457         (default_section_type_flags): Likewise.
9458         * system.h (startswith): Define startswith.
9459
9460 2021-05-10  Martin Liska  <mliska@suse.cz>
9461
9462         * bitmap.h (class auto_bitmap): Remove
9463         __cplusplus >= 201103.
9464         * config/aarch64/aarch64.c: Likewise.
9465         * gimple-ssa-store-merging.c (store_immediate_info::store_immediate_info):
9466         Likewise.
9467         * sbitmap.h: Likewise.
9468
9469 2021-05-10  Martin Liska  <mliska@suse.cz>
9470
9471         * Makefile.in: Rename gcov-iov to genversion and depend
9472         on version.h (instead of gcov-iov.h).
9473         * gcov-io.h: Include version.h instread of gcov-iov.h.
9474         * gengtype-state.c (read_state_version): Likewise.
9475         * gcov-iov.c: Moved to...
9476         * genversion.c: ...here.
9477         * lto-streamer.h (LTO_major_version): Define it with
9478         GCC_major_version.
9479         * version.c: Removed.
9480         * version.h: Removed.
9481
9482 2021-05-10  Claudiu Zissulescu  <claziss@synopsys.com>
9483
9484         * config/arc/arc.md (UNSPEC_ARC_DMPYWH): Define.
9485         * config/arc/simdext.md (VCT): Add predicates for iterator
9486         elements.
9487         (EMUVEC): Define.
9488         (voptab): Likewise.
9489         (vec_widen_<V_US>mult_hi_v4hi): Change pattern predicate.
9490         (<voptab>v2si3): New patterns.
9491         (neg): Likewise.
9492         (reduc_plus_scal_v4hi): Likewise.
9493         (reduc_plus_scal_v2si): Likewise.
9494         (vec_duplicatev2si): Likewise.
9495         (vec_duplicatev4hi): Likewise.
9496
9497 2021-05-10  Claudiu Zissulescu  <claziss@synopsys.com>
9498
9499         * config/arc/simdext.md: Format and cleanup file.
9500
9501 2021-05-10  Claudiu Zissulescu  <claziss@synopsys.com>
9502
9503         * config/arc/simdext.md (movmisalignv2hi): Allow misaligned access
9504         only when munaligned-access option is on.
9505         (movmisalign<mode>): Likewise.
9506
9507 2021-05-10  Claudiu Zissulescu  <claziss@synopsys.com>
9508
9509         * common/config/arc/arc-common.c (arc_handle_option): Remove dot
9510         from string.
9511         * config/arc/arc.c (arc_reorg): Remove underscore from string.
9512
9513 2021-05-10  Claudiu Zissulescu  <claziss@synopsys.com>
9514
9515         * config/arc/arc.h (CLZ_DEFINED_VALUE_AT_ZERO): Define.
9516         (CTZ_DEFINED_VALUE_AT_ZERO): Likewise.
9517         * config/arc/arc.md (clrsbsi2): Cleanup pattern.
9518         (norm_f): Likewise.
9519         (ffs): Likewise.
9520         (ffs_f): Likewise.
9521         (clzsi2): Use fls instruction when available.
9522         (arc_clzsi2): Likewise.
9523
9524 2021-05-10  Claudiu Zissulescu  <claziss@synopsys.com>
9525
9526         * config/arc/arc.h (ADDITIONAL_REGISTER_NAMES): Add r26 and r27.
9527
9528 2021-05-10  Claudiu Zissulescu  <claziss@synopsys.com>
9529
9530         * doc/extend.texi (__builtin_arc_sr): Swap arguments.
9531
9532 2021-05-10  Bernd Edlinger  <bernd.edlinger@hotmail.de>
9533
9534         PR middle-end/100467
9535         * toplev.c (compile_file): Call insn_locations_init before
9536         targetm.asm_out.code_end.
9537
9538 2021-05-07  Andrew Stubbs  <ams@codesourcery.com>
9539
9540         Revert:
9541         2021-05-07  Andrew Stubbs  <ams@codesourcery.com>
9542
9543         * config/gcn/gcn.c (gcn_scalar_mode_supported_p): Disable TImode.
9544
9545 2021-05-07  Jakub Jelinek  <jakub@redhat.com>
9546             Andrew Stubbs  <amd@codesourcery.com>
9547
9548         PR target/100418
9549         * builtins.c (try_store_by_multiple_pieces): Use force_operand for
9550         emit_move_insn operands.
9551
9552 2021-05-07  Eric Botcazou  <ebotcazou@adacore.com>
9553
9554         * cfgexpand.c (expand_gimple_basic_block): Do not inherit a current
9555         location for the outgoing edges of an empty block.
9556         * dwarf2out.c (add_subscript_info): Retrieve the bounds and index
9557         type by means of the get_array_descr_info langhook, if it is set and
9558         returns true.  Remove obsolete code dealing with unnamed subtypes.
9559
9560 2021-05-07  Andrew MacLeod  <amacleod@redhat.com>
9561
9562         * gimple-range-cache.cc (ssa_block_ranges): Virtualize.
9563         (sbr_vector): Renamed from ssa_block_cache.
9564         (sbr_vector::sbr_vector): Allocate from obstack abd initialize.
9565         (ssa_block_ranges::~ssa_block_ranges): Remove.
9566         (sbr_vector::set_bb_range): Use varying and undefined cached values.
9567         (ssa_block_ranges::set_bb_varying): Remove.
9568         (sbr_vector::get_bb_range): Adjust assert.
9569         (sbr_vector::bb_range_p): Adjust assert.
9570         (~block_range_cache): No freeing loop required.
9571         (block_range_cache::get_block_ranges): Remove.
9572         (block_range_cache::set_bb_range): Inline get_block_ranges.
9573         (block_range_cache::set_bb_varying): Remove.
9574         * gimple-range-cache.h (set_bb_varying): Remove prototype.
9575         * value-range.h (irange_allocator::get_memory): New.
9576
9577 2021-05-07  Andrew MacLeod  <amacleod@redhat.com>
9578
9579         * gimple-range-cache.cc (non_null_ref::non_null_deref_p): Search
9580         dominator tree is available and requested.
9581         (ranger_cache::ssa_range_in_bb): Don't search dom tree here.
9582         (ranger_cache::fill_block_cache): Don't search dom tree here either.
9583         * gimple-range-cache.h (non_null_deref_p): Add dom_search param.
9584
9585 2021-05-07  Andrew MacLeod  <amacleod@redhat.com>
9586
9587         * gimple-range.cc (gimple_ranger::range_on_exit): Handle block with
9588         only PHI nodes better.
9589
9590 2021-05-07  Andrew MacLeod  <amacleod@redhat.com>
9591
9592         * gimple-range-edge.h (gimple_outgoing_range): Rename from
9593         outgoing_range.
9594         (gcond_edge_range): Export prototype.
9595         * gimple-range-edge.cc (gcond_edge_range): New.
9596         (gimple_outgoing_range::edge_range_p): Use gcond_edge_range.
9597         * gimple-range-gori.h (gori_compute): Use gimple_outgoing_range.
9598
9599 2021-05-07  Andrew MacLeod  <amacleod@redhat.com>
9600
9601         * gimple-range-edge.cc (outgoing_range::calc_switch_ranges): Compute
9602         default range into a temp and allocate only what is needed.
9603
9604 2021-05-07  Andrew MacLeod  <amacleod@redhat.com>
9605
9606         * range-op.cc (operator_trunc_mod::wi_fold): x % 0 is UNDEFINED.
9607
9608 2021-05-07  Andrew MacLeod  <amacleod@redhat.com>
9609
9610         * gimple-range.h (gimple_range_global): Pick up parameter initial
9611         values, and use-before defined locals are UNDEFINED.
9612
9613 2021-05-07  Eric Botcazou  <ebotcazou@adacore.com>
9614
9615         * doc/extend.texi (scalar_storage_order): Mention effect on pointer
9616         and vector fields.
9617         * tree.h (reverse_storage_order_for_component_p): Return false if
9618         the type is a pointer.
9619
9620 2021-05-07  Andrew Stubbs  <ams@codesourcery.com>
9621
9622         * config/gcn/gcn.c (gcn_scalar_mode_supported_p): Disable TImode.
9623
9624 2021-05-07  Uroš Bizjak  <ubizjak@gmail.com>
9625
9626         PR target/98218
9627         * config/i386/i386-expand.c (ix86_expand_sse_movcc):
9628         Handle V8QI, V4HI and V2SI modes.
9629         * config/i386/mmx.md (mmx_pblendvb): New insn pattern.
9630         * config/i386/sse.md (unspec): Move UNSPEC_BLENDV ...
9631         * config/i386/i386.md (unspec): ... here.
9632
9633 2021-05-07  Tobias Burnus  <tobias@codesourcery.com>
9634             Tom de Vries  <tdevries@suse.de>
9635
9636         * omp-low.c (lower_rec_simd_input_clauses): Set max_vf = 1 if
9637         a truth_value_p reduction variable is nonintegral.
9638
9639 2021-05-07  Uroš Bizjak  <ubizjak@gmail.com>
9640
9641         PR target/100445
9642         * config/i386/i386-expand.c (ix86_use_mask_cmp_p):
9643         Return false for mode sizes < 16.
9644
9645 2021-05-07  Jakub Jelinek  <jakub@redhat.com>
9646
9647         PR target/100445
9648         * config/i386/mmx.md (*xop_pcmov_<mode>): New define_insn.
9649
9650 2021-05-06  Martin Jambor  <mjambor@suse.cz>
9651
9652         * ipa-sra.c (ipa_sra_dump_all_summaries): Dump edge summaries even
9653         when there is no function summary.
9654         (ipa_sra_summarize_function): produce edge summaries even when
9655         bailing out early.
9656
9657 2021-05-06  Tom Tromey  <tom@tromey.com>
9658
9659         * godump.c (string_hash_eq): Remove.
9660         (go_finish): Use htab_eq_string.
9661
9662 2021-05-06  Tom Tromey  <tom@tromey.com>
9663
9664         * gengtype-state.c (read_state): Use htab_eq_string.
9665         (string_eq): Remove.
9666
9667 2021-05-06  Tom Tromey  <tom@tromey.com>
9668
9669         * gensupport.c (htab_eq_string): Remove.
9670
9671 2021-05-06  Bernd Edlinger  <bernd.edlinger@hotmail.de>
9672
9673         PR ipa/97937
9674         * debug.h (gcc_debug_hooks): Add set_ignored_loc function pointer.
9675         * dwarf2out.h (dw_fde_node::ignored_debug): New data item.
9676         * dbxout.c (dbx_debug_hooks, xcoff_debug_hooks): Add dummy
9677         set_ignored_loc callbacks.
9678         * debug.c (do_nothing_debug_hooks): Likewise.
9679         * vmsdbgout.c (vmsdbg_debug_hooks): Likewise.
9680         * dwarf2out.c (text_section_used, cold_text_section_used): Remove.
9681         (in_text_section_p, last_text_label, last_cold_label,
9682         switch_text_ranges, switch_cold_ranges): New data items.
9683         (dwarf2out_note_section_used): Remove.
9684         (dwarf2out_begin_prologue): Set fde->ignored_debug and
9685         in_text_section_p.
9686         (mark_ignored_debug_section): New helper function.
9687         (dwarf2out_end_epilogue, dwarf2out_switch_text_section): Call
9688         mark_ignored_debug_section.
9689         (dwarf2_debug_hooks): Use dwarf2out_set_ignored_loc.
9690         (dwarf2_lineno_debug_hooks): Use dummy for set_ignored_loc.
9691         (size_of_aranges): Adjust formula for multi-part text ranges size.
9692         (output_aranges): Output multi-part text ranges.
9693         (dwarf2out_set_ignored_loc): New callback function.
9694         (dwarf2out_finish): Output multi-part text ranges.
9695         (dwarf2out_c_finalize): Clear new data items.
9696         * final.c (final_start_function_1): Call set_ignored_loc callback.
9697         (final_scan_insn_1): Likewise.
9698         * ggc-page.c (gt_ggc_mx): New helper function.
9699         * stringpool.c (gt_pch_nx): Likewise.
9700
9701 2021-05-06  Richard Biener  <rguenther@suse.de>
9702
9703         * timevar.def (TV_TREE_INSERT_PHI_NODES): Remove.
9704         (TV_TREE_SSA_REWRITE_BLOCKS): Likewise.
9705         (TV_TREE_INTO_SSA): New.
9706         * tree-into-ssa.c (insert_phi_nodes): Do not account separately.
9707         (rewrite_blocks): Likewise.
9708         (pass_data_build_ssa): Account to TV_TREE_INTO_SSA.
9709
9710 2021-05-06  Jakub Jelinek  <jakub@redhat.com>
9711
9712         * tree-ssa-phiopt.c (value_replacement, minmax_replacement,
9713         abs_replacement, xor_replacement,
9714         cond_removal_in_popcount_clz_ctz_pattern,
9715         replace_phi_edge_with_variable): Change type of phi argument from
9716         gimple * to gphi *.
9717
9718 2021-05-06  Richard Biener  <rguenther@suse.de>
9719
9720         * tree-ssa-loop-split.c (split_loop): Delay updating SSA form.
9721         Output an opt-info message.
9722         (do_split_loop_on_cond): Likewise.
9723         (tree_ssa_split_loops): Update SSA form here.
9724
9725 2021-05-06  Richard Biener  <rguenther@suse.de>
9726
9727         * tree-inline.c (tree_function_versioning): Fix DECL_BY_REFERENCE
9728         return variable removal.
9729
9730 2021-05-06  Marius Hillenbrand  <mhillen@linux.ibm.com>
9731
9732         * config/s390/s390-builtins.def (O_M5, O1_M5, ...): Remove unused macros.
9733         (s390_vec_permi_s64, s390_vec_permi_b64, s390_vec_permi_u64)
9734         (s390_vec_permi_dbl, s390_vpdi): Use the O3_U2 type for the immediate
9735         operand.
9736         * config/s390/s390.c (s390_const_operand_ok): Remove unused
9737         values.
9738
9739 2021-05-06  Jakub Jelinek  <jakub@redhat.com>
9740
9741         PR tree-optimization/94589
9742         * tree-ssa-phiopt.c (tree_ssa_phiopt_worker): Call
9743         spaceship_replacement.
9744         (cond_only_block_p, spaceship_replacement): New functions.
9745
9746 2021-05-06  Richard Biener  <rguenther@suse.de>
9747
9748         PR ipa/100373
9749         * tree-emutls.c (gen_emutls_addr): Pass in whether we're
9750         dealing with a debug use and only query existing addresses
9751         if so.
9752         (lower_emutls_1): Avoid splitting out addresses for debug
9753         stmts, reset the debug stmt when we fail to find existing
9754         lowered addresses.
9755         (lower_emutls_phi_arg): Set wi.stmt.
9756
9757 2021-05-06  Christoph Muellner  <cmuellner@gcc.gnu.org>
9758
9759         PR target/100266
9760         * config/riscv/riscv.c (riscv_block_move_loop): Use cbranch helper.
9761         * config/riscv/riscv.md (cbranch<mode>4): Generate helpers.
9762         (stack_protect_test): Use cbranch helper.
9763
9764 2021-05-05  Eric Botcazou  <ebotcazou@adacore.com>
9765
9766         PR target/100402
9767         * config/i386/i386.c (ix86_compute_frame_layout): For a SEH target,
9768         always return the establisher frame for __builtin_frame_address (0).
9769
9770 2021-05-05  Ivan Sorokin  <vanyacpp@gmail.com>
9771
9772         PR target/91400
9773         * config/i386/i386-builtins.c (ix86_cpu_model_type_node): New.
9774         (ix86_cpu_model_var): Likewise.
9775         (ix86_cpu_features2_type_node): Likewise.
9776         (ix86_cpu_features2_var): Likewise.
9777         (fold_builtin_cpu): Cache __cpu_model and __cpu_features2 with
9778         their types.
9779
9780 2021-05-05  Martin Sebor  <msebor@redhat.com>
9781
9782         * passes.def (pass_warn_printf): Run after SSA.
9783
9784 2021-05-05  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
9785
9786         * config/arm/neon.md (neon_vtst_combine<mode>): New pattern.
9787         * config/arm/predicates.md (minus_one_operand): New predicate.
9788
9789 2021-05-05  Jeff Law  <jlaw@tachyum.com>
9790
9791         * config/avr/avr.md: Remove references to CC_STATUS_INIT.
9792
9793 2021-05-05  Stefan Schulze Frielinghaus  <stefansf@linux.ibm.com>
9794
9795         PR rtl-optimization/100263
9796         * postreload.c (move2add_valid_value_p): Ensure register can
9797         change mode.
9798
9799 2021-05-05  Eric Botcazou  <ebotcazou@adacore.com>
9800
9801         PR rtl-optimization/100411
9802         * cfgcleanup.c (try_crossjump_to_edge): Also skip end of prologue
9803         and beginning of function markers.
9804
9805 2021-05-05  Jeff Law  <jlaw@tachyum.com>
9806
9807         * config/cr16/cr16.h (NOTICE_UPDATE_CC): Remove.
9808         * config/cr16/cr16.c (notice_update_cc): Remove.
9809         * config/cr16/cr16-protos.h (notice_update_cc): Remove.
9810
9811 2021-05-05  Uroš Bizjak  <ubizjak@gmail.com>
9812
9813         PR target/98218
9814         * config/i386/i386-expand.c (ix86_expand_int_sse_cmp):
9815         Handle V8QI, V4HI and V2SI modes.
9816         * config/i386/i386.c (ix86_build_const_vector): Handle V2SImode.
9817         (ix86_build_signbit_mask): Ditto.
9818         * config/i386/mmx.md (MMXMODE14): New mode iterator.
9819         (<smaxmin:code><MMXMODE14:mode>3): New expander.
9820         (*mmx_<smaxmin:code><MMXMODE14:mode>3): New insn pattern.
9821         (<umaxmin:code><MMXMODE24:mode>3): New expander.
9822         (*mmx_<umaxmin:code><MMXMODE24:mode>3): New insn pattern.
9823         (vec_cmp<MMXMODEI:mode><MMXMODEI:mode>): New expander.
9824         (vec_cmpu<MMXMODEI:mode><MMXMODEI:mode>): Ditto.
9825         (vcond<MMXMODEI:mode><MMXMODEI:mode>): Ditto.
9826         (vcondu<MMXMODEI:mode><MMXMODEI:mode>): Ditto.
9827         (vcond_mask_<MMXMODEI:mode><MMXMODEI:mode>): Ditto.
9828
9829 2021-05-05  Eric Botcazou  <ebotcazou@adacore.com>
9830
9831         * dwarf2out.c (loc_list_from_tree_1) <DECL>: During early DWARF, do
9832         not expand the VALUE_EXPR of variables put in the non-local frame.
9833         * gimplify.c (gimplify_type_sizes) <RECORD_TYPE>: If the type is not
9834         to be ignored for debug info, ensure its variable offsets are not.
9835
9836 2021-05-05  Richard Biener  <rguenther@suse.de>
9837
9838         PR tree-optimization/79333
9839         * tree-ssa-sccvn.c (eliminate_dom_walker::eliminate_stmt):
9840         Fold stmt following SSA edges.
9841
9842 2021-05-05  Richard Biener  <rguenther@suse.de>
9843
9844         PR middle-end/100394
9845         * calls.c (expand_call): Preserve possibly throwing calls.
9846         * cfgexpand.c (expand_call_stmt): When a call can throw signal
9847         RTL expansion there are side-effects.
9848         * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Simplify,
9849         mark all possibly throwing stmts necessary unless we can elide
9850         dead EH.
9851         * tree-ssa-dse.c (pass_dse::execute): Preserve exceptions unless
9852         -fdelete-dead-exceptions.
9853         * tree.h (DECL_PURE_P): Add note about exceptions.
9854
9855 2021-05-05  Alexandre Oliva  <oliva@adacore.com>
9856
9857         * config/i386/vxworks.h (DBX_REGISTER_NUMBER): Make it
9858         unconditional.
9859
9860 2021-05-04  David Edelsohn  <dje.gcc@gmail.com>
9861
9862         * config/rs6000/rs6000-call.c (rs6000_output_mi_thunk): Use
9863         get_fnname_from_decl for name of thunk.
9864         * config/rs6000/rs6000.c (rs6000_declare_alias): Use assemble_name
9865         and ASM_OUTPUT_LABEL.
9866         (rs6000_xcoff_declare_function_name): Use assemble_name and
9867         ASM_OUTPUT_LABEL.
9868         (rs6000_xcoff_declare_object_name): Use ASM_OUTPUT_LABEL.
9869         (rs6000_xcoff_encode_section_info): Don't add mapping class
9870         for aliases.  Always add [DS] mapping class to primary
9871         FUNCTION_DECL.
9872         (rs6000_asm_weaken_decl): Don't explicitly add [DS].
9873
9874 2021-05-04  Martin Sebor  <msebor@redhat.com>
9875
9876         PR middle-end/100307
9877         * builtins.c (compute_objsize_r): Clear base0 for pointers.
9878
9879 2021-05-04  Jeff Law  <jlaw@tachyum.com>
9880
9881         * config/bfin/bfin.h (NOTICE_UPDATE_CC): Remove.
9882
9883 2021-05-04  Segher Boessenkool  <segher@kernel.crashing.org>
9884
9885         * caller-save.c: Remove CC0.
9886         * cfgcleanup.c: Remove CC0.
9887         * cfgrtl.c: Remove CC0.
9888         * combine.c: Remove CC0.
9889         * compare-elim.c: Remove CC0.
9890         * conditions.h: Remove CC0.
9891         * config/h8300/h8300.h: Remove CC0.
9892         * config/h8300/h8300-protos.h: Remove CC0.
9893         * config/h8300/peepholes.md: Remove CC0.
9894         * config/i386/x86-tune-sched.c: Remove CC0.
9895         * config/m68k/m68k.c: Remove CC0.
9896         * config/rl78/rl78.c: Remove CC0.
9897         * config/sparc/sparc.c: Remove CC0.
9898         * config/xtensa/xtensa.c: Remove CC0.
9899         (gen_conditional_move):  Use pc_rtx instead of cc0_rtx in a piece of
9900         RTL where that is used as a placeholder only.
9901         * cprop.c: Remove CC0.
9902         * cse.c: Remove CC0.
9903         * cselib.c: Remove CC0.
9904         * df-problems.c: Remove CC0.
9905         * df-scan.c: Remove CC0.
9906         * doc/md.texi: Remove CC0.  Adjust an example.
9907         * doc/rtl.texi: Remove CC0.  Adjust an example.
9908         * doc/tm.texi: Regenerate.
9909         * doc/tm.texi.in: Remove CC0.
9910         * emit-rtl.c: Remove CC0.
9911         * final.c: Remove CC0.
9912         * fwprop.c: Remove CC0.
9913         * gcse-common.c: Remove CC0.
9914         * gcse.c: Remove CC0.
9915         * genattrtab.c: Remove CC0.
9916         * genconfig.c: Remove CC0.
9917         * genemit.c: Remove CC0.
9918         * genextract.c: Remove CC0.
9919         * gengenrtl.c: Remove CC0.
9920         * genrecog.c: Remove CC0.
9921         * haifa-sched.c: Remove CC0.
9922         * ifcvt.c: Remove CC0.
9923         * ira-costs.c: Remove CC0.
9924         * ira.c: Remove CC0.
9925         * jump.c: Remove CC0.
9926         * loop-invariant.c: Remove CC0.
9927         * lra-constraints.c: Remove CC0.
9928         * lra-eliminations.c: Remove CC0.
9929         * optabs.c: Remove CC0.
9930         * postreload-gcse.c: Remove CC0.
9931         * postreload.c: Remove CC0.
9932         * print-rtl.c: Remove CC0.
9933         * read-rtl-function.c: Remove CC0.
9934         * reg-notes.def: Remove CC0.
9935         * reg-stack.c: Remove CC0.
9936         * reginfo.c: Remove CC0.
9937         * regrename.c: Remove CC0.
9938         * reload.c: Remove CC0.
9939         * reload1.c: Remove CC0.
9940         * reorg.c: Remove CC0.
9941         * resource.c: Remove CC0.
9942         * rtl.c: Remove CC0.
9943         * rtl.def: Remove CC0.
9944         * rtl.h: Remove CC0.
9945         * rtlanal.c: Remove CC0.
9946         * sched-deps.c: Remove CC0.
9947         * sched-rgn.c: Remove CC0.
9948         * shrink-wrap.c: Remove CC0.
9949         * simplify-rtx.c: Remove CC0.
9950         * system.h: Remove CC0.  Poison NOTICE_UPDATE_CC, CC_STATUS_MDEP_INIT,
9951         CC_STATUS_MDEP, and CC_STATUS.
9952         * target.def: Remove CC0.
9953         * valtrack.c: Remove CC0.
9954         * var-tracking.c: Remove CC0.
9955
9956 2021-05-04  Richard Biener  <rguenther@suse.de>
9957
9958         PR tree-optimization/100414
9959         * tree-ssa-phiopt.c (get_non_trapping): Do not compute dominance
9960         info here.
9961         (tree_ssa_phiopt_worker): But unconditionally here.
9962
9963 2021-05-04  Tobias Burnus  <tobias@codesourcery.com>
9964
9965         * omp-low.c (lower_rec_input_clauses, lower_reduction_clauses): Handle
9966         && and || with floating-point and complex arguments.
9967
9968 2021-05-04  Eric Botcazou  <ebotcazou@adacore.com>
9969
9970         * tree-inline.c (insert_debug_decl_map): Delete.
9971         (copy_debug_stmt): Minor tweak.
9972         (setup_one_parameter): Do not use a variable if the value is either
9973         a read-only DECL or a non-addressable local variable in the caller.
9974         In this case, insert the debug-only variable in the map manually.
9975         (expand_call_inline): Do not generate a CLOBBER for these values.
9976         * tree-inline.h (debug_map): Minor tweak.
9977
9978 2021-05-04  Eric Botcazou  <ebotcazou@adacore.com>
9979
9980         * builtins.c (builtin_with_linkage_p): Return true for stp[n]cpy.
9981         * symtab.c (symtab_node::output_to_lto_symbol_table_p): Tidy up.
9982
9983 2021-05-04  Richard Biener  <rguenther@suse.de>
9984
9985         PR tree-optimization/100329
9986         * tree-ssa-reassoc.c (can_reassociate_p): Do not reassociate
9987         asm goto defs.
9988         (insert_stmt_after): Assert we're not running into asm goto.
9989
9990 2021-05-04  Richard Biener  <rguenther@suse.de>
9991
9992         PR tree-optimization/100398
9993         * tree-ssa-dse.c (pass_dse::execute): Preserve control
9994         altering stmts.
9995
9996 2021-05-04  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
9997
9998         * builtins.c (try_store_by_multiple_pieces): Fix constfun's prototype.
9999
10000 2021-05-04  Alexandre Oliva  <oliva@adacore.com>
10001
10002         * builtins.c (try_store_by_multiple_pieces): New.
10003         (expand_builtin_memset_args): Use it.  If target_char_cast
10004         fails, proceed as for non-constant val.  Pass len's ctz to...
10005         * expr.c (clear_storage_hints): ... this.  Try store by
10006         multiple pieces after setmem.
10007         (clear_storage): Adjust.
10008         * expr.h (clear_storage_hints): Likewise.
10009         (try_store_by_multiple_pieces): Declare.
10010         * passes.def: Replace the last copy_prop with ccp.
10011
10012 2021-05-03  Tom de Vries  <tdevries@suse.de>
10013
10014         PR target/100321
10015         * omp-low.c (lower_rec_input_clauses): Disable SIMT for user-defined
10016         reduction.
10017
10018 2021-05-03  Richard Biener  <rguenther@suse.de>
10019
10020         * tree-ssa-dse.c (dse_classify_store): Track two PHI defs.
10021
10022 2021-05-03  Richard Biener  <rguenther@suse.de>
10023
10024         * tree-ssa-dse.c: Do not include domwalk.h but cfganal.h.
10025         (dse_dom_walker): Remove.
10026         (dse_dom_walker::dse_optimize_stmt): Rename...
10027         (dse_optimize_stmt): ... to this, pass in live_bytes sbitmap.
10028         (dse_dom_walker::before_dom_children): Inline ...
10029         (pass_dse::execute): ... here.  Perform a reverse program
10030         order walk.
10031
10032 2021-05-03  H.J. Lu  <hjl.tools@gmail.com>
10033
10034         PR bootstrap/99703
10035         * configure: Regenerated.
10036
10037 2021-05-03  Ilya Leoshkevich  <iii@linux.ibm.com>
10038
10039         PR target/100217
10040         * config/s390/s390.c (s390_hard_fp_reg_p): New function.
10041         (s390_md_asm_adjust): Handle hard registers.
10042
10043 2021-05-03  Jakub Jelinek  <jakub@redhat.com>
10044
10045         PR tree-optimization/100382
10046         * tree-ssa-dse.c: Include tree-eh.h.
10047         (dse_dom_walker::before_dom_children): Don't remove stmts if
10048         stmt_unremovable_because_of_non_call_eh_p is true.
10049
10050 2021-05-02  David Edelsohn  <dje.gcc@gmail.com>
10051
10052         * varasm.c (compute_reloc_for_var): Split out from...
10053         (get_variable_section): Use it.
10054         * output.h (compute_reloc_for_var): Declare.
10055         * config/rs6000/rs6000-protos.h
10056         (rs6000_xcoff_asm_output_aligned_decl_common): Change alignment to
10057         unsigned int.
10058         * config/rs6000/rs6000.c (rs6000_legitimize_tls_address_aix):
10059         Don't append storage mapping class to symbol.
10060         (rs6000_xcoff_asm_named_section): Add BS and UL mapping classes.
10061         Don't convert TLS BSS to common.
10062         (rs6000_xcoff_unique_section): Don't fall back to select_secton.
10063         (rs6000_xcoff_section_type_flags): Add SECTION_BSS if DECL is
10064         bss_initializer.
10065         (rs6000_xcoff_asm_globalize_decl_name): Don't strip storage
10066         mapping class.
10067         (rs6000_xcoff_asm_output_aligned_decl_common): Align is unsigned int.
10068         If align is 0 from TLS class, use the same rules as varasm.c
10069         If not common, switch to BSS section manually.
10070         If common, emit appropriate comm or lcomm directive.
10071         (rs6000_xcoff_encode_section_info): Add logic to append all
10072         storage mapping classes.
10073         (rs6000_asm_weaken_decl): Adjust for qualname symbols.
10074         * config/rs6000/xcoff.h (ASM_OUTPUT_ALIGNED_DECL_LOCAL): Use
10075         rs6000_xcoff_asm_output_aligned_decl_common.
10076         (ASM_OUTPUT_ALIGNED_DECL_LOCAL): Use
10077         rs6000_xcoff_asm_output_aligned_decl_common.
10078         (ASM_OUTPUT_TLS_COMMON): Use
10079         rs6000_xcoff_asm_output_aligned_decl_common.
10080
10081 2021-05-02  Jakub Jelinek  <jakub@redhat.com>
10082
10083         PR target/100375
10084         * config/nvptx/nvptx.c (nvptx_sese_pseudo): Use nullptr instead of 0
10085         as first argument of pseudo_node_t constructors.
10086
10087 2021-05-02  Jakub Jelinek  <jakub@redhat.com>
10088
10089         PR target/100336
10090         * config/i386/t-i386 (TM_H): Add $(srcdir)/config/i386/i386-isa.def.
10091
10092 2021-05-01  Aldy Hernandez  <aldyh@redhat.com>
10093
10094         * value-range.cc (DEFINE_INT_RANGE_GC_STUBS): Remove.
10095         (gt_pch_nx (int_range<1> *&)): New.
10096         (gt_ggc_mx (int_range<1> *&)): New.
10097         * value-range.h (class irange): Add GTY support for
10098         the base class.
10099
10100 2021-05-01  Geng Qi  <gengqi@linux.alibaba.com>
10101
10102         * doc/options.texi (Negative): Change either or to both and.
10103
10104 2021-04-30  Jonathan Wright  <jonathan.wright@arm.com>
10105
10106         * config/aarch64/aarch64-simd-builtins.def: Add
10107         float_ml[as][q]_laneq builtin generator macros.
10108         * config/aarch64/aarch64-simd.md (mul_laneq<mode>3): Define.
10109         (aarch64_float_mla_laneq<mode>): Define.
10110         (aarch64_float_mls_laneq<mode>): Define.
10111         * config/aarch64/arm_neon.h (vmla_laneq_f32): Use RTL builtin
10112         instead of GCC vector extensions.
10113         (vmlaq_laneq_f32): Likewise.
10114         (vmls_laneq_f32): Likewise.
10115         (vmlsq_laneq_f32): Likewise.
10116
10117 2021-04-30  Jonathan Wright  <jonathan.wright@arm.com>
10118
10119         * config/aarch64/aarch64-simd-builtins.def: Add
10120         float_ml[as]_lane builtin generator macros.
10121         * config/aarch64/aarch64-simd.md (*aarch64_mul3_elt<mode>):
10122         Rename to...
10123         (mul_lane<mode>3): This, and re-order arguments.
10124         (aarch64_float_mla_lane<mode>): Define.
10125         (aarch64_float_mls_lane<mode>): Define.
10126         * config/aarch64/arm_neon.h (vmla_lane_f32): Use RTL builtin
10127         instead of GCC vector extensions.
10128         (vmlaq_lane_f32): Likewise.
10129         (vmls_lane_f32): Likewise.
10130         (vmlsq_lane_f32): Likewise.
10131
10132 2021-04-30  Jonathan Wright  <jonathan.wright@arm.com>
10133
10134         * config/aarch64/aarch64-simd-builtins.def: Add float_ml[as]
10135         builtin generator macros.
10136         * config/aarch64/aarch64-simd.md (aarch64_float_mla<mode>):
10137         Define.
10138         (aarch64_float_mls<mode>): Define.
10139         * config/aarch64/arm_neon.h (vmla_f32): Use RTL builtin
10140         instead of relying on GCC vector extensions.
10141         (vmla_f64): Likewise.
10142         (vmlaq_f32): Likewise.
10143         (vmlaq_f64): Likewise.
10144         (vmls_f32): Likewise.
10145         (vmls_f64): Likewise.
10146         (vmlsq_f32): Likewise.
10147         (vmlsq_f64): Likewise.
10148         * config/aarch64/iterators.md: Define VDQF_DF mode iterator.
10149
10150 2021-04-30  Jonathan Wright  <jonathan.wright@arm.com>
10151
10152         * config/aarch64/aarch64-simd-builtins.def: Add
10153         float_ml[as]_n_builtin generator macros.
10154         * config/aarch64/aarch64-simd.md (*aarch64_mul3_elt_from_dup<mode>):
10155         Rename to...
10156         (mul_n<mode>3): This, and re-order arguments.
10157         (aarch64_float_mla_n<mode>): Define.
10158         (aarch64_float_mls_n<mode>): Define.
10159         * config/aarch64/arm_neon.h (vmla_n_f32): Use RTL builtin
10160         instead of inline asm.
10161         (vmlaq_n_f32): Likewise.
10162         (vmls_n_f32): Likewise.
10163         (vmlsq_n_f32): Likewise.
10164
10165 2021-04-30  Jonathan Wright  <joanthan.wright@arm.com>
10166
10167         * config/aarch64/aarch64-simd-builtins.def: Add pmull[2]
10168         builtin generator macros.
10169         * config/aarch64/aarch64-simd.md (aarch64_pmullv8qi): Define.
10170         (aarch64_pmull_hiv16qi_insn): Define.
10171         (aarch64_pmull_hiv16qi): Define.
10172         * config/aarch64/arm_neon.h (vmull_high_p8): Use RTL builtin
10173         instead of inline asm.
10174         (vmull_p8): Likewise.
10175
10176 2021-04-30  Senthil Kumar Selvaraj  <saaadhu@gcc.gnu.org>
10177
10178         * config/avr/avr.md: Adjust peepholes to match and
10179         generate parallels with clobber of REG_CC.
10180         (mov<mode>_insn): Rename to mov<mode>_insn_split.
10181         (*mov<mode>_insn): Rename to mov<mode>_insn.
10182
10183 2021-04-30  David Edelsohn  <dje.gcc@gmail.com>
10184
10185         * varasm.c (use_blocks_for_decl_p): Don't use section anchors
10186         for VAR_DECLs if -fdata-sections enabled.
10187
10188 2021-04-30  Michael Meissner  <meissner@linux.ibm.com>
10189
10190         PR bootstrap/100327
10191         * config/rs6000/rs6000.c
10192         (TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P): Define.
10193         (rs6000_libgcc_floating_mode_supported_p): New target hook.
10194
10195 2021-04-30  Aldy Hernandez  <aldyh@redhat.com>
10196
10197         * tree-ssa-threadbackward.c (class thread_jumps): Split out code
10198         from here...
10199         (class back_threader_registry): ...to here...
10200         (class back_threader_profitability): ...and here...
10201         (thread_jumps::thread_through_all_blocks): Remove argument.
10202         (back_threader_registry::back_threader_registry): New.
10203         (back_threader_registry::~back_threader_registry): New.
10204         (back_threader_registry::thread_through_all_blocks): New.
10205         (thread_jumps::profitable_jump_thread_path): Move from here...
10206         (back_threader_profitability::profitable_path_p): ...to here.
10207         (thread_jumps::find_taken_edge): New.
10208         (thread_jumps::convert_and_register_current_path): Move...
10209         (back_threader_registry::register_path): ...to here.
10210         (thread_jumps::register_jump_thread_path_if_profitable): Move...
10211         (thread_jumps::maybe_register_path): ...to here.
10212         (thread_jumps::handle_phi): Call find_taken_edge and
10213         maybe_register_path.
10214         (thread_jumps::handle_assignment): Same.
10215         (thread_jumps::fsm_find_control_statement_thread_paths): Remove
10216         tree argument to handle_phi and handle_assignment.
10217         (thread_jumps::find_jump_threads_backwards): Set m_name.  Remove
10218         set of m_speed_p and m_max_threaded_paths.
10219         (pass_thread_jumps::execute): Remove second argument from
10220         find_jump_threads_backwards.
10221         (pass_early_thread_jumps::execute): Same.
10222
10223 2021-04-30  Aldy Hernandez  <aldyh@redhat.com>
10224
10225         * tree-ssa-dom.c (class dom_jump_threader_simplifier): New.
10226         (class dom_opt_dom_walker): Initialize some class variables.
10227         (pass_dominator::execute): Pass evrp_range_analyzer and
10228         dom_jump_threader_simplifier to dom_opt_dom_walker.
10229         Adjust for some functions moving into classes.
10230         (simplify_stmt_for_jump_threading): Adjust and move to...
10231         (jump_threader_simplifier::simplify): ...here.
10232         (dom_opt_dom_walker::before_dom_children): Adjust for
10233         m_evrp_range_analyzer.
10234         (dom_opt_dom_walker::after_dom_children): Remove x_vr_values hack.
10235         (test_for_singularity): Place in dom_opt_dom_walker class.
10236         (dom_opt_dom_walker::optimize_stmt): The argument
10237         evrp_range_analyzer is now a class field.
10238         * tree-ssa-threadbackward.c (class thread_jumps): Add m_registry.
10239         (thread_jumps::thread_through_all_blocks): New.
10240         (thread_jumps::convert_and_register_current_path): Use m_registry.
10241         (pass_thread_jumps::execute): Adjust for thread_through_all_blocks
10242         being in the threader class.
10243         (pass_early_thread_jumps::execute): Same.
10244         * tree-ssa-threadedge.c (threadedge_initialize_values): Move...
10245         (jump_threader::jump_threader): ...here.
10246         (threadedge_finalize_values): Move...
10247         (jump_threader::~jump_threader): ...here.
10248         (jump_threader::remove_jump_threads_including): New.
10249         (jump_threader::thread_through_all_blocks): New.
10250         (record_temporary_equivalences_from_phis): Move...
10251         (jump_threader::record_temporary_equivalences_from_phis): ...here.
10252         (record_temporary_equivalences_from_stmts_at_dest): Move...
10253         (jump_threader::record_temporary_equivalences_from_stmts_at_dest):
10254         Here...
10255         (simplify_control_stmt_condition_1): Move to jump_threader class.
10256         (simplify_control_stmt_condition): Move...
10257         (jump_threader::simplify_control_stmt_condition): ...here.
10258         (thread_around_empty_blocks): Move...
10259         (jump_threader::thread_around_empty_blocks): ...here.
10260         (thread_through_normal_block): Move...
10261         (jump_threader::thread_through_normal_block): ...here.
10262         (thread_across_edge): Move...
10263         (jump_threader::thread_across_edge): ...here.
10264         (thread_outgoing_edges): Move...
10265         (jump_threader::thread_outgoing_edges): ...here.
10266         * tree-ssa-threadedge.h: Move externally facing functings...
10267         (class jump_threader): ...here...
10268         (class jump_threader_simplifier): ...and here.
10269         * tree-ssa-threadupdate.c (struct redirection_data): Remove comment.
10270         (jump_thread_path_allocator::jump_thread_path_allocator): New.
10271         (jump_thread_path_allocator::~jump_thread_path_allocator): New.
10272         (jump_thread_path_allocator::allocate_thread_edge): New.
10273         (jump_thread_path_allocator::allocate_thread_path): New.
10274         (jump_thread_path_registry::jump_thread_path_registry): New.
10275         (jump_thread_path_registry::~jump_thread_path_registry): New.
10276         (jump_thread_path_registry::allocate_thread_edge): New.
10277         (jump_thread_path_registry::allocate_thread_path): New.
10278         (dump_jump_thread_path): Make extern.
10279         (debug (const vec<jump_thread_edge *> &path)): New.
10280         (struct removed_edges): Move to tree-ssa-threadupdate.h.
10281         (struct thread_stats_d): Remove.
10282         (remove_ctrl_stmt_and_useless_edges): Make static.
10283         (lookup_redirection_data): Move...
10284         (jump_thread_path_registry::lookup_redirection_data): ...here.
10285         (ssa_redirect_edges): Make static.
10286         (thread_block_1): Move...
10287         (jump_thread_path_registry::thread_block_1): ...here.
10288         (thread_block): Move...
10289         (jump_thread_path_registry::thread_block): ...here.
10290         (thread_through_loop_header):  Move...
10291         (jump_thread_path_registry::thread_through_loop_header): ...here.
10292         (mark_threaded_blocks): Move...
10293         (jump_thread_path_registry::mark_threaded_blocks): ...here.
10294         (debug_path): Move...
10295         (jump_thread_path_registry::debug_path): ...here.
10296         (debug_all_paths): Move...
10297         (jump_thread_path_registry::dump): ..here.
10298         (rewire_first_differing_edge): Move...
10299         (jump_thread_path_registry::rewire_first_differing_edge): ...here.
10300         (adjust_paths_after_duplication): Move...
10301         (jump_thread_path_registry::adjust_paths_after_duplication): ...here.
10302         (duplicate_thread_path): Move...
10303         (jump_thread_path_registry::duplicate_thread_path): ..here.
10304         (remove_jump_threads_including): Move...
10305         (jump_thread_path_registry::remove_jump_threads_including): ...here.
10306         (thread_through_all_blocks): Move to...
10307         (jump_thread_path_registry::thread_through_all_blocks): ...here.
10308         (delete_jump_thread_path): Remove.
10309         (register_jump_thread): Move...
10310         (jump_thread_path_registry::register_jump_thread): ...here.
10311         * tree-ssa-threadupdate.h: Move externally facing functions...
10312         (class jump_thread_path_allocator): ...here...
10313         (class jump_thread_path_registry): ...and here.
10314         (thread_through_all_blocks): Remove.
10315         (struct removed_edges): New.
10316         (register_jump_thread): Remove.
10317         (remove_jump_threads_including): Remove.
10318         (delete_jump_thread_path): Remove.
10319         (remove_ctrl_stmt_and_useless_edges): Remove.
10320         (free_dom_edge_info): New prototype.
10321         * tree-vrp.c: Remove x_vr_values hack.
10322         (class vrp_jump_threader_simplifier): New.
10323         (vrp_jump_threader_simplifier::simplify): New.
10324         (vrp_jump_threader::vrp_jump_threader): Adjust method signature.
10325         Remove m_dummy_cond.
10326         Instantiate m_simplifier and m_threader.
10327         (vrp_jump_threader::thread_through_all_blocks): New.
10328         (vrp_jump_threader::simplify_stmt): Remove.
10329         (vrp_jump_threader::after_dom_children): Do not set m_dummy_cond.
10330         Remove x_vr_values hack.
10331         (execute_vrp): Adjust for thread_through_all_blocks being in a
10332         class.
10333
10334 2021-04-30  Christophe Lyon  <christophe.lyon@linaro.org>
10335
10336         * genflags.c (gen_insn): Print failed expansion string.
10337
10338 2021-04-30  H.J. Lu  <hjl.tools@gmail.com>
10339
10340         * expr.c (alignment_for_piecewise_move): Call mode_for_size
10341         without limit to MAX_FIXED_MODE_SIZE.
10342
10343 2021-04-30  H.J. Lu  <hjl.tools@gmail.com>
10344
10345         PR middle-end/90773
10346         * builtins.c (builtin_memset_gen_str): Don't use return from
10347         simplify_gen_subreg.
10348
10349 2021-04-30  Uroš Bizjak  <ubizjak@gmail.com>
10350
10351         PR target/98060
10352         * config/i386/i386.md (*add<mode>3_carry_0r): New insn pattern.
10353         (*addsi3_carry_zext_0r): Ditto.
10354         (*sub<mode>3_carry_0): Ditto.
10355         (*subsi3_carry_zext_0r): Ditto.
10356         * config/i386/predicates.md (ix86_carry_flag_unset_operator):
10357         New predicate.
10358         * config/i386/i386.c (ix86_rtx_costs) <case PLUS, case MINUS>:
10359         Also consider ix86_carry_flag_unset_operator to calculate
10360         the cost of adc/sbb insn.
10361
10362 2021-04-30  Roman Zhuykov  <zhroma@ispras.ru>
10363
10364         PR rtl-optimization/100225
10365         PR rtl-optimization/84878
10366         * modulo-sched.c (sms_schedule): Use note_stores to skip loops
10367         where we have an instruction which touches (writes) any hard
10368         register from df->regular_block_artificial_uses set.
10369         Allow not-single-set instruction only right before basic block
10370         tail.
10371
10372 2021-04-30  Geng Qi  <gengqi@linux.alibaba.com>
10373
10374         * config/riscv/riscv.opt (march=,mabi=): Negative itself.
10375
10376 2021-04-30  LevyHsu  <admin@levyhsu.com>
10377
10378         * config/riscv/riscv.c (riscv_min_arithmetic_precision): New.
10379         * config/riscv/riscv.h (TARGET_MIN_ARITHMETIC_PRECISION): New.
10380         * config/riscv/riscv.md (addv<mode>4, uaddv<mode>4): New.
10381         (subv<mode>4, usubv<mode>4, mulv<mode>4, umulv<mode>4): New.
10382
10383 2021-04-29  Alexandre Oliva  <oliva@adacore.com>
10384
10385         * config.gcc: Merged x86 and x86_64 cpu_type-setting cases.
10386
10387 2021-04-29  Alexandre Oliva  <oliva@adacore.com>
10388
10389         * config/i386/i386.h (ASM_OUTPUT_MAX_SKIP_PAD): Rename to...
10390         (ASM_OUTPUT_MAX_SKIP_ALIGN): ... this.  Enclose in do/while(0).
10391         * config/i386/i386.c: Adjust.
10392         * config/i386/i386.md: Adjust.
10393         * config/i386/darwin.h (ASM_OUTPUT_MAX_SKIP_ALIGN): Drop.
10394         * config/i386/dragonfly.h (ASM_OUTPUT_MAX_SKIP_ALIGN): Likewise.
10395         * config/i386/freebsd.h (ASM_OUTPUT_MAX_SKIP_ALIGN): Likewise.
10396         * config/i386/gas.h (ASM_OUTPUT_MAX_SKIP_ALIGN): Likewise.
10397         * config/i386/gnu-user.h (ASM_OUTPUT_MAX_SKIP_ALIGN): Likewise.
10398         * config/i386/iamcu.h (ASM_OUTPUT_MAX_SKIP_ALIGN): Likewise.
10399         * config/i386/lynx.h (ASM_OUTPUT_MAX_SKIP_ALIGN): Likewise.
10400         * config/i386/netbsd-elf.h (ASM_OUTPUT_MAX_SKIP_ALIGN): Likewise.
10401         * config/i386/openbsdelf.h (ASM_OUTPUT_MAX_SKIP_ALIGN): Likewise.
10402         * config/i386/x86-64.h (ASM_OUTPUT_MAX_SKIP_ALIGN): Likewise.
10403         (ASM_OUTPUT_MAX_SKIP_PAD): Likewise.
10404
10405 2021-04-29  Uroš Bizjak  <ubizjak@gmail.com>
10406
10407         * config/i386/i386-expand.c (ix86_expand_int_compare):
10408         Swap operands of GTU and LEU comparison to emit carry flag comparison.
10409         * config/i386/i386.md (*add<mode>3_carry_0): Change insn
10410         predicate to allow more combine opportunities with memory operands.
10411         (*sub<mode>3_carry_0): Ditto.
10412
10413 2021-04-29  Richard Sandiford  <richard.sandiford@arm.com>
10414
10415         PR rtl-optimization/100303
10416         * rtl-ssa/accesses.cc (function_info::make_use_available): Take a
10417         boolean that indicates whether the use will only be used in
10418         debug instructions.  Treat it in the same way that existing
10419         cross-EBB debug references would be handled if so.
10420         (function_info::make_uses_available): Likewise.
10421         * rtl-ssa/functions.h (function_info::make_uses_available): Update
10422         prototype accordingly.
10423         (function_info::make_uses_available): Likewise.
10424         * fwprop.c (try_fwprop_subst): Update call accordingly.
10425
10426 2021-04-29  Jeff Law  <jlaw@tachyum.com>
10427
10428         * config/nios2/nios2-protos.h (nios2_fpu_insn_enabled): Move outside
10429         of RTX_CODE guard.
10430
10431 2021-04-29  Uroš Bizjak  <ubizjak@gmail.com>
10432             Richard Biener  <rguenther@suse.de>
10433
10434         PR target/100312
10435         * config/i386/i386-builtin.def (IX86_BUILTIN_MASKLOADPD)
10436         (IX86_BUILTIN_MASKLOADPS, IX86_BUILTIN_MASKLOADPD256)
10437         (IX86_BUILTIN_MASKLOADPS256, IX86_BUILTIN_MASKLOADD)
10438         (IX86_BUILTIN_MASKLOADQ, IX86_BUILTIN_MASKLOADD256)
10439         (IX86_BUILTIN_MASKLOADQ256): Move from SPECIAL_ARGS
10440         to PURE_ARGS category.
10441         * config/i386/i386-builtins.c (ix86_init_mmx_sse_builtins):
10442         Handle PURE_ARGS category.
10443         * config/i386/i386-expand.c (ix86_expand_builtin): Ditto.
10444
10445 2021-04-29  Eric Botcazou  <ebotcazou@adacore.com>
10446
10447         * configure.ac: Check for the presence of sys/locking.h header and
10448         for whether _LK_LOCK is supported by _locking.
10449         * configure: Regenerate.
10450         * config.in: Likewise.
10451         * gcov-io.h: Define GCOV_LOCKED_WITH_LOCKING if HOST_HAS_LK_LOCK.
10452         * gcov-io.c (gcov_open): Add support for GCOV_LOCKED_WITH_LOCKING.
10453         * system.h: Include <sys/locking.h> if HAVE_SYS_LOCKING_H.
10454
10455 2021-04-29  Uroš Bizjak  <ubizjak@gmail.com>
10456
10457         * config/i386/predicates.md (fcmov_comparison_operator):
10458         Do not check for trivial FP comparison operator.
10459         <case GEU, case LTU>: Allow CCGZmode.
10460         <case GTU, case LEU>: Do not allow CCCmode.
10461         (ix86_comparison_operator) <case GTU, case LEU>: Allow only CCmode.
10462         (ix86_carry_flag_operator): Match only LTU and UNLT code.
10463         Do not check for trivial FP comparison operator.  Allow CCGZmode.
10464
10465 2021-04-29  Tom de Vries  <tdevries@suse.de>
10466
10467         * omp-expand.c (expand_omp_simd): Add step_orig, and replace uses of
10468         fd->loop.step by either step or orig_step.
10469
10470 2021-04-29  Eric Botcazou  <ebotcazou@adacore.com>
10471
10472         * config/sparc/sparc.c (gen_load_pcrel_sym): Delete.
10473         (load_got_register): Do the PIC dance here.
10474         (sparc_legitimize_tls_address): Simplify.
10475         (sparc_emit_probe_stack_range): Likewise.
10476         (sparc32_initialize_trampoline): Likewise.
10477         (sparc64_initialize_trampoline): Likewise.
10478         * config/sparc/sparc.md (load_pcrel_sym<P:mode>): Add @ marker.
10479         (probe_stack_range<P:mode>): Likewise.
10480         (flush<P:mode>): Likewise.
10481         (tgd_hi22<P:mode>): Likewise.
10482         (tgd_lo10<P:mode>): Likewise.
10483         (tgd_add<P:mode>): Likewise.
10484         (tgd_call<P:mode>): Likewise.
10485         (tldm_hi22<P:mode>): Likewise.
10486         (tldm_lo10<P:mode>): Likewise.
10487         (tldm_add<P:mode>): Likewise.
10488         (tldm_call<P:mode>): Likewise.
10489         (tldo_hix22<P:mode>): Likewise.
10490         (tldo_lox10<P:mode>): Likewise.
10491         (tldo_add<P:mode>): Likewise.
10492         (tie_hi22<P:mode>): Likewise.
10493         (tie_lo10<P:mode>): Likewise.
10494         (tie_add<P:mode>): Likewise.
10495         (tle_hix22<P:mode>): Likewise.
10496         (tle_lox10<P:mode>): Likewise.
10497         (stack_protect_setsi): Rename to...
10498         (stack_protect_set32): ...this.
10499         (stack_protect_setdi): Rename to...
10500         (stack_protect_set64): ...this.
10501         (stack_protect_set): Adjust calls to above.
10502         (stack_protect_testsi): Rename to...
10503         (stack_protect_test32): ...this.
10504         (stack_protect_testdi): Rename to...
10505         (stack_protect_test64): ...this.
10506         (stack_protect_test): Adjust calls to above.
10507
10508 2021-04-29  H.J. Lu  <hjl.tools@gmail.com>
10509
10510         PR middle-end/90773
10511         * builtins.c (builtin_memcpy_read_str): Add a dummy argument.
10512         (builtin_strncpy_read_str): Likewise.
10513         (builtin_memset_read_str): Add an argument for the previous RTL
10514         information and generate the new RTL from the previous RTL info.
10515         (builtin_memset_gen_str): Likewise.
10516         * builtins.h (builtin_strncpy_read_str): Update the prototype.
10517         (builtin_memset_read_str): Likewise.
10518         * expr.c (by_pieces_ninsns): If targetm.overlap_op_by_pieces_p()
10519         returns true, round up size and alignment to the widest integer
10520         mode for maximum size.
10521         (pieces_addr::adjust): Add a pointer to by_pieces_prev argument
10522         and pass it to m_constfn.
10523         (op_by_pieces_d): Add m_push and m_overlap_op_by_pieces.
10524         (op_by_pieces_d::op_by_pieces_d): Add a bool argument to
10525         initialize m_push.  Initialize m_overlap_op_by_pieces with
10526         targetm.overlap_op_by_pieces_p ().
10527         (op_by_pieces_d::run): Pass the previous RTL information to
10528         pieces_addr::adjust and generate overlapping operations if
10529         m_overlap_op_by_pieces is true.
10530         (PUSHG_P): New.
10531         (move_by_pieces_d::move_by_pieces_d): Updated for op_by_pieces_d
10532         change.
10533         (store_by_pieces_d::store_by_pieces_d): Updated for op_by_pieces_d
10534         change.
10535         (can_store_by_pieces): Use by_pieces_constfn on constfun.
10536         (store_by_pieces): Use by_pieces_constfn on constfun.  Updated
10537         for op_by_pieces_d change.
10538         (clear_by_pieces_1): Add a dummy argument.
10539         (clear_by_pieces): Updated for op_by_pieces_d change.
10540         (compare_by_pieces_d::compare_by_pieces_d): Likewise.
10541         (string_cst_read_str): Add a dummy argument.
10542         * expr.h (by_pieces_constfn): Add a dummy argument.
10543         (by_pieces_prev): New.
10544         * target.def (overlap_op_by_pieces_p): New target hook.
10545         * config/i386/i386.c (TARGET_OVERLAP_OP_BY_PIECES_P): New.
10546         * doc/tm.texi.in: Add TARGET_OVERLAP_OP_BY_PIECES_P.
10547         * doc/tm.texi: Regenerated.
10548
10549 2021-04-29  Richard Biener  <rguenther@suse.de>
10550
10551         PR tree-optimization/100253
10552         * tree-vect-stmts.c (vectorizable_load): Do not assume
10553         element alignment when DR_MISALIGNMENT is -1.
10554         (vectorizable_store): Likewise.
10555
10556 2021-04-29  Jakub Jelinek  <jakub@redhat.com>
10557
10558         PR target/100302
10559         * config/aarch64/aarch64.c (aarch64_add_offset_1_temporaries): Use
10560         absu_hwi instead of abs_hwi.
10561
10562 2021-04-29  Richard Biener  <rguenther@suse.de>
10563
10564         PR middle-end/38474
10565         * tree-ssa-structalias.c (add_graph_edge): Avoid direct
10566         forwarding when indirect forwarding through ESCAPED
10567         alread happens.
10568
10569 2021-04-29  Tom de Vries  <tdevries@suse.de>
10570
10571         PR target/100232
10572         * internal-fn.c (expand_GOMP_SIMT_ENTER_ALLOC)
10573         (expand_GOMP_SIMT_LAST_LANE, expand_GOMP_SIMT_ORDERED_PRED)
10574         (expand_GOMP_SIMT_VOTE_ANY, expand_GOMP_SIMT_XCHG_BFLY)
10575         (expand_GOMP_SIMT_XCHG_IDX): Ensure target is assigned to.
10576
10577 2021-04-29  Richard Biener  <rguenther@suse.de>
10578
10579         PR tree-optimization/99912
10580         * tree-ssa-dse.c (dse_dom_walker::m_need_cfg_cleanup): New.
10581         (dse_dom_walker::todo): Likewise.
10582         (dse_dom_walker::dse_optimize_stmt): Move VDEF check to the
10583         caller.
10584         (dse_dom_walker::before_dom_children): Remove trivially
10585         dead SSA defs and schedule CFG cleanup if we removed all
10586         PHIs in a block.
10587         (pass_dse::execute): Get TODO as computed by the DOM walker
10588         and return it.  Wipe dominator info earlier.
10589
10590 2021-04-29  Richard Biener  <rguenther@suse.de>
10591
10592         PR ipa/100308
10593         * ipa-prop.c (ipcp_modif_dom_walker::before_dom_children):
10594         Track blocks to cleanup EH in new m_need_eh_cleanup.
10595         (ipcp_modif_dom_walker::cleanup_eh): New.
10596         (ipcp_transform_function): Release dominator info before
10597         doing EH cleanup.
10598
10599 2021-04-29  Martin Sebor  <msebor@redhat.com>
10600
10601         PR middle-end/100250
10602         * attribs.c (attr_access::array_as_string): Avoid dereferencing
10603         a pointer when it's null.
10604
10605 2021-04-29  Martin Sebor  <msebor@redhat.com>
10606
10607         * Makefile.in (OBJS): Add ipa-free-lang-data.o.
10608         * ipa-free-lang-data.cc: New file.
10609         * tree.c: Move pass free_lang_data to file above.
10610          (build_array_type_1): Declare extern.
10611         * tree.h (build_array_type_1): Declare.
10612
10613 2021-04-28  Jonathan Wright  <jonathan.wright@arm.com>
10614
10615         * config/aarch64/aarch64-simd-builtins.def: Modify comment to
10616         make consistent with updated RTL pattern.
10617         * config/aarch64/aarch64-simd.md (aarch64_<sur>qmovn<mode>):
10618         Implement using ss_truncate and us_truncate rather than
10619         unspecs.
10620         * config/aarch64/iterators.md: Remove redundant unspecs and
10621         iterator: UNSPEC_[SU]QXTN and SUQMOVN respectively.
10622
10623 2021-04-28  Jonathan Wright  <jonathan.wright@arm.com>
10624
10625         * config/aarch64/arm_acle.h (__attribute__): Make intrinsic
10626         attributes consistent with those defined in arm_neon.h.
10627
10628 2021-04-28  Jonathan Wright  <jonathan.wright@arm.com>
10629
10630         * config/aarch64/arm_fp16.h (__attribute__): Make intrinsic
10631         attributes consistent with those defined in arm_neon.h.
10632
10633 2021-04-28  Jonathan Wright  <jonathan.wright@arm.com>
10634
10635         * config/aarch64/aarch64-simd-builtins.def: Add
10636         float_trunc_rodd builtin generator macros.
10637         * config/aarch64/aarch64-simd.md (aarch64_float_trunc_rodd_df):
10638         Define.
10639         (aarch64_float_trunc_rodd_lo_v2sf): Define.
10640         (aarch64_float_trunc_rodd_hi_v4sf_le): Define.
10641         (aarch64_float_trunc_rodd_hi_v4sf_be): Define.
10642         (aarch64_float_trunc_rodd_hi_v4sf): Define.
10643         * config/aarch64/arm_neon.h (vcvtx_f32_f64): Use RTL builtin
10644         instead of inline asm.
10645         (vcvtx_high_f32_f64): Likewise.
10646         (vcvtxd_f32_f64): Likewise.
10647         * config/aarch64/iterators.md: Add FCVTXN unspec.
10648
10649 2021-04-28  Jonathan Wright  <jonathan.wright@arm.com>
10650
10651         * config/aarch64/aarch64-simd-builtins.def: Add tbx1 builtin
10652         generator macros.
10653         * config/aarch64/aarch64-simd.md (aarch64_tbx1<mode>):
10654         Define.
10655         * config/aarch64/arm_neon.h (vqtbx1_s8): USE RTL builtin
10656         instead of inline asm.
10657         (vqtbx1_u8): Likewise.
10658         (vqtbx1_p8): Likewise.
10659         (vqtbx1q_s8): Likewise.
10660         (vqtbx1q_u8): Likewise.
10661         (vqtbx1q_p8): Likewise.
10662         (vtbx2_s8): Likewise.
10663         (vtbx2_u8): Likewise.
10664         (vtbx2_p8): Likewise.
10665
10666 2021-04-28  Jonathan Wright  <jonathan.wright@arm.com>
10667
10668         * config/aarch64/aarch64-simd-builtins.def: Add tbl1 builtin
10669         generator macros.
10670         * config/aarch64/arm_neon.h (vqtbl1_p8): Use RTL builtin
10671         instead of inline asm.
10672         (vqtbl1_s8): Likewise.
10673         (vqtbl1_u8): Likewise.
10674         (vqtbl1q_p8): Likewise.
10675         (vqtbl1q_s8): Likewise.
10676         (vqtbl1q_u8): Likewise.
10677         (vtbl1_s8): Likewise.
10678         (vtbl1_u8): Likewise.
10679         (vtbl1_p8): Likewise.
10680         (vtbl2_s8): Likewise.
10681         (vtbl2_u8): Likewise.
10682         (vtbl2_p8): Likewise.
10683
10684 2021-04-28  Jonathan Wright  <jonathan.wright@arm.com>
10685
10686         * config/aarch64/aarch64-simd-builtins.def: Add polynomial
10687         ssri_n buitin generator macro.
10688         * config/aarch64/arm_neon.h (vsri_n_p8): Use RTL builtin
10689         instead of inline asm.
10690         (vsri_n_p16): Likewise.
10691         (vsri_n_p64): Likewise.
10692         (vsriq_n_p8): Likewise.
10693         (vsriq_n_p16): Likewise.
10694         (vsriq_n_p64): Likewise.
10695
10696 2021-04-28  Jonathan Wright  <jonathan.wright@arm.com>
10697
10698         * config/aarch64/aarch64-simd-builtins.def: Use VALLP mode
10699         iterator for polynomial ssli_n builtin generator macro.
10700         * config/aarch64/arm_neon.h (vsli_n_p8): Use RTL builtin
10701         instead of inline asm.
10702         (vsli_n_p16): Likewise.
10703         (vsliq_n_p8): Likewise.
10704         (vsliq_n_p16): Likewise.
10705         * config/aarch64/iterators.md: Define VALLP mode iterator.
10706
10707 2021-04-28  Jonathan Wright  <jonathan.wright@arm.com>
10708
10709         * config/aarch64/aarch64-simd-builtins.def: Use VDQV_L
10710         iterator to generate [su]adalp RTL builtins.
10711         * config/aarch64/aarch64-simd.md: Use VDQV_L iterator in
10712         [su]adalp RTL pattern.
10713         * config/aarch64/arm_neon.h (vpadal_s32): Use RTL builtin
10714         instead of inline asm.
10715         (vpadal_u32): Likewise.
10716
10717 2021-04-28  Jonathan Wright  <jonathan.wright@arm.com>
10718
10719         * config/aarch64/aarch64-simd-builtins.def: Add [su]addlp
10720         builtin generator macros.
10721         * config/aarch64/aarch64-simd.md (aarch64_<su>addlp<mode>):
10722         Define.
10723         * config/aarch64/arm_neon.h (vpaddl_s8): Use RTL builtin
10724         instead of inline asm.
10725         (vpaddl_s16): Likewise.
10726         (vpaddl_s32): Likewise.
10727         (vpaddl_u8): Likewise.
10728         (vpaddl_u16): Likewise.
10729         (vpaddl_u32): Likewise.
10730         (vpaddlq_s8): Likewise.
10731         (vpaddlq_s16): Likewise.
10732         (vpaddlq_s32): Likewise.
10733         (vpaddlq_u8): Likewise.
10734         (vpaddlq_u16): Likewise.
10735         (vpaddlq_u32): Liwewise.
10736         * config/aarch64/iterators.md: Define [SU]ADDLP unspecs with
10737         appropriate attributes.
10738
10739 2021-04-28  Jonathan Wright  <jonathan.wright@arm.com>
10740
10741         * config/aarch64/aarch64-simd-builtins.def: Use VDQ_I iterator
10742         for aarch64_addp<mode> builtin macro generator.
10743         * config/aarch64/aarch64-simd.md: Use VDQ_I iterator in
10744         aarch64_addp<mode> RTL pattern.
10745         * config/aarch64/arm_neon.h (vpaddq_s8): Use RTL builtin
10746         instead of inline asm.
10747         (vpaddq_s16): Likewise.
10748         (vpaddq_s32): Likewise.
10749         (vpaddq_s64): Likewise.
10750         (vpaddq_u8): Likewise.
10751         (vpaddq_u16): Likewise.
10752         (vpaddq_u32): Likewise.
10753         (vpaddq_u64): Likewise.
10754
10755 2021-04-28  Jonathan Wright  <jonathan.wright@arm.com>
10756
10757         * config/aarch64/aarch64-simd-builtins.def: Add sq[r]dmulh_n
10758         builtin generator macros.
10759         * config/aarch64/aarch64-simd.md (aarch64_sq<r>dmulh_n<mode>):
10760         Define.
10761         * config/aarch64/arm_neon.h (vqdmulh_n_s16): Use RTL builtin
10762         instead of inline asm.
10763         (vqdmulh_n_s32): Likewise.
10764         (vqdmulhq_n_s16): Likewise.
10765         (vqdmulhq_n_s32): Likewise.
10766         (vqrdmulh_n_s16): Likewise.
10767         (vqrdmulh_n_s32): Likewise.
10768         (vqrdmulhq_n_s16): Likewise.
10769         (vqrdmulhq_n_s32): Likewise.
10770
10771 2021-04-28  Tobias Burnus  <tobias@codesourcery.com>
10772
10773         * doc/install.texi (--enable-offload-defaulted): Document.
10774
10775 2021-04-28  Senthil Kumar Selvaraj  <saaadhu@gcc.gnu.org>
10776
10777         * config/avr/avr-dimode.md: Turn existing patterns into
10778         define_insn_and_split style patterns where the splitter
10779         adds a clobber of the condition code register.  Drop "cc"
10780         attribute.  Add new patterns to match output of
10781         the splitters.
10782         * config/avr/avr-fixed.md: Likewise.
10783         * config/avr/avr.c (cc_reg_rtx): New.
10784         (avr_parallel_insn_from_insns): Adjust insn count
10785         for removal of set of cc0.
10786         (avr_is_casesi_sequence): Likewise.
10787         (avr_casei_sequence_check_operands): Likewise.
10788         (avr_optimize_casesi): Likewise. Also insert
10789         new insns after jump_insn.
10790         (avr_pass_casesi::avr_rest_of_handle_casesi): Adjust
10791         for removal of set of cc0.
10792         (avr_init_expanders): Initialize cc_reg_rtx.
10793         (avr_regno_reg_class): Handle REG_CC.
10794         (cond_string): Remove usage of CC_OVERFLOW_UNUSABLE.
10795         (avr_notice_update_cc): Remove function.
10796         (ret_cond_branch): Remove usage of CC_OVERFLOW_UNUSABLE.
10797         (compare_condition): Adjust for PARALLEL with
10798         REG_CC clobber.
10799         (out_shift_with_cnt): Likewise.
10800         (ashlhi3_out): Likewise.
10801         (ashrhi3_out): Likewise.
10802         (lshrhi3_out): Likewise.
10803         (avr_class_max_nregs): Return single reg for REG_CC.
10804         (avr_compare_pattern): Check for REG_CC instead
10805         of cc0_rtx.
10806         (avr_reorg_remove_redundant_compare): Likewise.
10807         (avr_reorg):Adjust for PARALLEL with REG_CC clobber.
10808         (avr_hard_regno_nregs): Return single reg for REG_CC.
10809         (avr_hard_regno_mode_ok): Allow only CCmode for REG_CC.
10810         (avr_md_asm_adjust): Clobber REG_CC.
10811         (TARGET_HARD_REGNO_NREGS): Define.
10812         (TARGET_CLASS_MAX_NREGS): Define.
10813         (TARGET_MD_ASM_ADJUST): Define.
10814         * config/avr/avr.h (FIRST_PSEUDO_REGISTER): Adjust
10815         for REG_CC.
10816         (enum reg_class): Add CC_REG class.
10817         (NOTICE_UPDATE_CC): Remove.
10818         (CC_OVERFLOW_UNUSABLE): Remove.
10819         (CC_NO_CARRY): Remove.
10820         * config/avr/avr.md: Turn existing patterns into
10821         define_insn_and_split style patterns where the splitter
10822         adds a clobber of the condition code register.  Drop "cc"
10823         attribute.  Add new patterns to match output of
10824         the splitters.
10825         (sez): Remove unused pattern.
10826
10827 2021-04-28  Richard Earnshaw  <rearnsha@arm.com>
10828
10829         PR target/100311
10830         * config/arm/arm.c (arm_hard_regno_mode_ok): Only allow VPR to be
10831         used in HImode.
10832
10833 2021-04-28  Richard Sandiford  <richard.sandiford@arm.com>
10834
10835         PR target/100305
10836         * config/aarch64/constraints.md (Utq): Require the address to
10837         be valid for both the element mode and for V2DImode.
10838
10839 2021-04-28  Jakub Jelinek  <jakub@redhat.com>
10840             Tobias Burnus  <tobias@codesourcery.com>
10841
10842         * configure.ac (OFFLOAD_DEFAULTED): AC_DEFINE if offload-defaulted.
10843         * gcc.c (process_command): New variable.
10844         (driver::maybe_putenv_OFFLOAD_TARGETS): If OFFLOAD_DEFAULTED,
10845         set it if -foffload is defaulted.
10846         * lto-wrapper.c (OFFLOAD_TARGET_DEFAULT_ENV): Define.
10847         (compile_offload_image): If OFFLOAD_DEFAULTED and
10848         OFFLOAD_TARGET_DEFAULT is in the environment, don't fail
10849         if corresponding mkoffload can't be found.
10850         (compile_images_for_offload_targets): Likewise.  Free and clear
10851         offload_names if no valid offload is found.
10852         * config.in: Regenerate.
10853         * configure: Regenerate.
10854
10855 2021-04-28  Richard Biener  <rguenther@suse.de>
10856
10857         PR tree-optimization/100292
10858         * tree-vect-generic.c (expand_vector_condition): Do not fold
10859         the comparisons.
10860
10861 2021-04-27  David Edelsohn  <dje.gcc@gmail.com>
10862
10863         * config/rs6000/aix.h (SUBTARGET_DRIVER_SELF_SPECS): New.
10864         * config/rs6000/aix64.opt (m64): New.
10865         (m32): New.
10866
10867 2021-04-27  Maciej W. Rozycki  <macro@orcam.me.uk>
10868
10869         * config/vax/vax.c (print_operand_address, vax_address_cost_1)
10870         (index_term_p): Handle ASHIFT too.
10871
10872 2021-04-27  Maciej W. Rozycki  <macro@orcam.me.uk>
10873
10874         * config/vax/builtins.md (jbb<ccss>i<mode>): Remove operand #3.
10875         (sync_lock_test_and_set<mode>): Adjust accordingly.
10876         (sync_lock_release<mode>): Likewise.
10877
10878 2021-04-27  Maciej W. Rozycki  <macro@orcam.me.uk>
10879
10880         * config/vax/vax-protos.h (adjacent_operands_p): Remove
10881         prototype.
10882         * config/vax/vax.c (adjacent_operands_p): Remove.
10883
10884 2021-04-27  Maciej W. Rozycki  <macro@linux-mips.org>
10885
10886         * ifcvt.c (dead_or_predicable) [!IFCVT_MODIFY_TESTS]: Fall
10887         through to the non-conditional execution case if getting the
10888         condition for conditional execution has failed.
10889
10890 2021-04-27  Richard Sandiford  <richard.sandiford@arm.com>
10891
10892         PR middle-end/100284
10893         * gimple.c (gimple_could_trap_p_1): Remove VEC_COND_EXPR test.
10894         * tree-eh.c (operation_could_trap_p): Handle VEC_COND_EXPR rather
10895         than asserting on it.
10896
10897 2021-04-27  David Edelsohn  <dje.gcc@gmail.com>
10898
10899         * config/rs6000/rs6000.c (rs6000_aix_precompute_tls_p): Protect
10900         with TARGET_AIX_OS.
10901
10902 2021-04-27  David Edelsohn  <dje.gcc@gmail.com>
10903
10904         PR target/94177
10905         * calls.c (precompute_register_parameters): Additionally test
10906         targetm.precompute_tls_p to pre-compute argument.
10907         * config/rs6000/aix.h (TARGET_PRECOMPUTE_TLS_P): Define.
10908         * config/rs6000/rs6000.c (rs6000_aix_precompute_tls_p): New.
10909         * target.def (precompute_tls_p): New.
10910         * doc/tm.texi.in (TARGET_PRECOMPUTE_TLS_P): Add hook documentation.
10911         * doc/tm.texi: Regenerated.
10912
10913 2021-04-27  Jakub Jelinek  <jakub@redhat.com>
10914
10915         PR target/100200
10916         * config/aarch64/aarch64.c (aarch64_print_operand): Cast -UINTVAL
10917         back to HOST_WIDE_INT.
10918
10919 2021-04-27  Bernd Edlinger  <bernd.edlinger@hotmail.de>
10920
10921         PR target/100106
10922         * simplify-rtx.c (simplify_context::simplify_subreg): Check the
10923         memory alignment for the outer mode.
10924
10925 2021-04-27  H.J. Lu  <hjl.tools@gmail.com>
10926
10927         PR middle-end/90773
10928         * expr.c (op_by_pieces_d::get_usable_mode): New member function.
10929         (op_by_pieces_d::run): Cange a while loop to a do-while loop.
10930
10931 2021-04-27  Alex Coplan  <alex.coplan@arm.com>
10932
10933         PR target/99977
10934         * config/arm/arm.c (arm_split_compare_and_swap): Fix up codegen
10935         with negative immediates: ensure we expand cbranchsi4_scratch
10936         correctly and ensure we satisfy its constraints.
10937         * config/arm/sync.md
10938         (@atomic_compare_and_swap<CCSI:arch><NARROW:mode>_1): Don't
10939         attempt to tie two output operands together with constraints;
10940         collapse two alternatives.
10941         (@atomic_compare_and_swap<CCSI:arch><SIDI:mode>_1): Likewise.
10942         * config/arm/thumb1.md (cbranchsi4_neg_late): New.
10943
10944 2021-04-27  Jakub Jelinek  <jakub@redhat.com>
10945
10946         PR target/100200
10947         * config/aarch64/predicates.md (aarch64_sub_immediate,
10948         aarch64_plus_immediate): Use -UINTVAL instead of -INTVAL.
10949         * config/aarch64/aarch64.md (casesi, rotl<mode>3): Likewise.
10950         * config/aarch64/aarch64.c (aarch64_print_operand,
10951         aarch64_split_atomic_op, aarch64_expand_subvti): Likewise.
10952
10953 2021-04-27  Jakub Jelinek  <jakub@redhat.com>
10954
10955         PR tree-optimization/100239
10956         * tree-vect-generic.c (lower_vec_perm): Don't accept constant
10957         permutations with all indices from the first zero element as vec_shl.
10958
10959 2021-04-27  Jakub Jelinek  <jakub@redhat.com>
10960
10961         PR rtl-optimization/100254
10962         * cfgcleanup.c (outgoing_edges_match): Check REG_EH_REGION on
10963         last1 and last2 insns rather than BB_END (bb1) and BB_END (bb2) insns.
10964
10965 2021-04-27  Richard Biener  <rguenther@suse.de>
10966
10967         PR tree-optimization/99912
10968         * passes.def: Add comment about new TODO_remove_unused_locals.
10969         * tree-stdarg.c (pass_data_stdarg): Run TODO_remove_unused_locals
10970         at start.
10971
10972 2021-04-27  Richard Biener  <rguenther@suse.de>
10973
10974         PR tree-optimization/99912
10975         * passes.def (pass_all_optimizations): Add pass_dse before
10976         the first pass_dce, move the first pass_dse before the
10977         pass_dce following pass_pre.
10978
10979 2021-04-27  Jakub Jelinek  <jakub@redhat.com>
10980
10981         PR tree-optimization/95527
10982         * generic-match-head.c: Include tm.h.
10983         * gimple-match-head.c: Include tm.h.
10984         * match.pd (CLZ == INTEGER_CST): Don't use
10985         #ifdef CLZ_DEFINED_VALUE_AT_ZERO, only test CLZ_DEFINED_VALUE_AT_ZERO
10986         if clz == CFN_CLZ.  Add missing val declaration.
10987         (CTZ cmp CST): New simplifications.
10988
10989 2021-04-27  Jakub Jelinek  <jakub@redhat.com>
10990
10991         PR tree-optimization/96696
10992         * expr.c (expand_expr_divmod): New function.
10993         (expand_expr_real_2) <case TRUNC_DIV_EXPR>: Use it for truncations and
10994         divisions.  Formatting fixes.
10995         <case MULT_EXPR>: Optimize x / y * y as x - x % y if the latter is
10996         cheaper.
10997
10998 2021-04-27  Martin Jambor  <mjambor@suse.cz>
10999
11000         PR ipa/99951
11001         * ipa-param-manipulation.c (ipa_param_adjustments::modify_call):
11002         If removing a call statement LHS SSA name, release it.
11003
11004 2021-04-27  Richard Earnshaw  <rearnsha@arm.com>
11005
11006         PR target/100236
11007         * config/arm/arm.c (THUMB2_WORK_REGS): Check PIC_OFFSET_TABLE_REGNUM
11008         is valid before including it in the mask.
11009
11010 2021-04-27  Richard Sandiford  <richard.sandiford@arm.com>
11011
11012         PR target/100270
11013         * config/aarch64/aarch64.c (aarch64_comp_type_attributes): Handle
11014         SVE attributes.
11015
11016 2021-04-27  Richard Biener  <rguenther@suse.de>
11017
11018         PR tree-optimization/100051
11019         * tree-ssa-alias.c (indirect_ref_may_alias_decl_p): Add
11020         disambiguator based on access size vs. decl size.
11021
11022 2021-04-27  Richard Biener  <rguenther@suse.de>
11023
11024         PR tree-optimization/100278
11025         * tree-ssa-pre.c (compute_avail): Give up when we cannot
11026         adjust TBAA beacuse of mismatching bases.
11027
11028 2021-04-27  Jakub Jelinek  <jakub@redhat.com>
11029
11030         PR target/99405
11031         * config/i386/i386.md (*<insn><mode>3_mask, *<insn><mode>3_mask_1):
11032         For any_rotate define_insn_split and following splitters, use
11033         SWI iterator instead of SWI48.
11034
11035 2021-04-27  Richard Biener  <rguenther@suse.de>
11036
11037         PR tree-optimization/99776
11038         * match.pd (bit_field_ref (ctor)): Relax element extract
11039         type compatibility checks.
11040
11041 2021-04-27  Cui,Lili  <lili.cui@intel.com>
11042
11043         * common/config/i386/i386-common.c (processor_names):
11044         Sync processor_names with processor_type.
11045         * config/i386/i386-options.c (processor_cost_table):
11046         Sync processor_cost_table with processor_type.
11047
11048 2021-04-26  Aldy Hernandez  <aldyh@redhat.com>
11049
11050         * value-range.cc (irange::irange_set_1bit_anti_range): Add assert.
11051         (irange::set): Call irange_set_1bit_anti_range for handling all
11052         1-bit ranges.  Fall through on ~[MIN,MAX].
11053
11054 2021-04-26  Aldy Hernandez  <aldyh@redhat.com>
11055
11056         * value-range.cc (irange::legacy_num_pairs): Remove.
11057         (irange::invert): Change gcc_assert to gcc_checking_assert.
11058         * value-range.h (irange::num_pairs): Adjust for a cached
11059         num_pairs().  Also, rename all gcc_assert's to
11060         gcc_checking_assert's.
11061
11062 2021-04-26  Aldy Hernandez  <aldyh@redhat.com>
11063
11064         * value-range.cc (irange::operator=): Set m_kind.
11065         (irange::copy_to_legacy): Handle varying and undefined sources
11066         as a legacy copy since they can be easily copied.
11067         (irange::irange_set): Set m_kind.
11068         (irange::irange_set_anti_range): Same.
11069         (irange::set): Rename normalize_min_max to normalize_kind.
11070         (irange::verify_range): Adjust for multi-ranges having the
11071         m_kind field set.
11072         (irange::irange_union): Set m_kind.
11073         (irange::irange_intersect): Same.
11074         (irange::invert): Same.
11075         * value-range.h (irange::kind): Always return m_kind.
11076         (irange::varying_p): Rename to...
11077         (irange::varying_comptaible_p): ...this.
11078         (irange::undefined_p): Only look at m_kind.
11079         (irange::irange): Always set VR_UNDEFINED if applicable.
11080         (irange::set_undefined): Always set VR_UNDEFINED.
11081         (irange::set_varying): Always set m_kind to VR_VARYING.
11082         (irange::normalize_min_max): Rename to...
11083         (irange::normalize_kind): ...this.
11084
11085 2021-04-26  Aldy Hernandez  <aldyh@redhat.com>
11086
11087         * gimple-ssa-evrp-analyze.c (evrp_range_analyzer::set_ssa_range_info):
11088         Adjust for constant_p including varying_p.
11089         * tree-vrp.c (vrp_prop::finalize): Same.
11090         (determine_value_range): Same.
11091         * vr-values.c (vr_values::range_of_expr): Same.
11092         * value-range.cc (irange::symbolic_p): Do not check varying_p.
11093         (irange::constant_p): Same.
11094
11095 2021-04-26  Aldy Hernandez  <aldyh@redhat.com>
11096
11097         * value-range.cc (irange::legacy_lower_bound): Replace
11098           !undefined_p check with num_ranges > 0.
11099         (irange::legacy_upper_bound): Same.
11100         * value-range.h (irange::type): Same.
11101         (irange::lower_bound): Same.
11102         (irange::upper_bound): Same.
11103
11104 2021-04-26  Richard Biener  <rguenther@suse.de>
11105
11106         PR tree-optimization/99956
11107         * gimple-loop-interchange.cc (compute_access_stride):
11108         Try instantiating the access in a shallower loop nest
11109         if instantiating failed.
11110         (compute_access_strides): Pass adjustable loop_nest
11111         to compute_access_stride.
11112
11113 2021-04-26  Christophe Lyon  <christophe.lyon@linaro.org>
11114
11115         * doc/sourcebuild.texi (arm_cmse_hw): Document.
11116
11117 2021-04-26  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
11118
11119         * config/aarch64/iterators.md (vwcore): Handle V4BF, V8BF.
11120
11121 2021-04-26  Thomas Schwinge  <thomas@codesourcery.com>
11122             Nathan Sidwell  <nathan@codesourcery.com>
11123             Tom de Vries  <vries@codesourcery.com>
11124             Julian Brown  <julian@codesourcery.com>
11125             Kwok Cheung Yeung  <kcy@codesourcery.com>
11126
11127         * omp-offload.c (oacc_validate_dims): Implement
11128         '-Wopenacc-parallelism'.
11129         * doc/invoke.texi (-Wopenacc-parallelism): Document.
11130
11131 2021-04-26  Richard Biener  <rguenther@suse.de>
11132
11133         * tree-cfg.h (gimplify_build1): Remove.
11134         (gimplify_build2): Likewise.
11135         (gimplify_build3): Likewise.
11136         * tree-cfg.c (gimplify_build1): Move to tree-vect-generic.c.
11137         (gimplify_build2): Likewise.
11138         (gimplify_build3): Likewise.
11139         * tree-vect-generic.c (gimplify_build1): Move from tree-cfg.c.
11140         Modernize.
11141         (gimplify_build2): Likewise.
11142         (gimplify_build3): Likewise.
11143         (tree_vec_extract): Use resimplify with following SSA edges.
11144         (expand_vector_parallel): Avoid passing NULL size/bitpos
11145         to tree_vec_extract.
11146         * expr.c (store_constructor): Deal with zero-element CTORs.
11147         * match.pd (bit_field_ref <vector CTOR>): Make sure to
11148         produce vector constants when possible.
11149
11150 2021-04-26  Richard Biener  <rguenther@suse.de>
11151
11152         * tree-complex.c: Include gimple-fold.h.
11153         (expand_complex_addition): Use gimple_build.
11154         (expand_complex_multiplication_components): Likewise.
11155         (expand_complex_multiplication): Likewise.
11156         (expand_complex_div_straight): Likewise.
11157         (expand_complex_div_wide): Likewise.
11158         (expand_complex_division): Likewise.
11159         (expand_complex_conjugate): Likewise.
11160         (expand_complex_comparison): Likewise.
11161
11162 2021-04-26  Richard Biener  <rguenther@suse.de>
11163
11164         * tree-ssa-phiopt.c (two_value_replacement): Remove use
11165         of legacy gimplify_buildN API.
11166
11167 2021-04-26  Richard Biener  <rguenther@suse.de>
11168
11169         PR tree-optimization/99473
11170         * tree-ssa-phiopt.c (cond_store_replacement): Handle all
11171         stores.
11172
11173 2021-04-26  Richard Biener  <rguenther@suse.de>
11174
11175         * config/rs6000/rs6000-call.c (rs6000_gimple_fold_builtin):
11176         Use replace_call_with_value.
11177
11178 2021-04-26  Richard Biener  <rguenther@suse.de>
11179
11180         * tree-ssa-propagate.h (valid_gimple_rhs_p): Remove.
11181         (update_gimple_call): Likewise.
11182         (update_call_from_tree): Likewise.
11183         * tree-ssa-propagate.c (valid_gimple_rhs_p): Remove.
11184         (valid_gimple_call_p): Likewise.
11185         (move_ssa_defining_stmt_for_defs): Likewise.
11186         (finish_update_gimple_call): Likewise.
11187         (update_gimple_call): Likewise.
11188         (update_call_from_tree): Likewise.
11189         (propagate_tree_value_into_stmt): Use replace_call_with_value.
11190         * gimple-fold.h (update_gimple_call): Declare.
11191         * gimple-fold.c (valid_gimple_rhs_p): Move here from
11192         tree-ssa-propagate.c.
11193         (update_gimple_call): Likewise.
11194         (valid_gimple_call_p): Likewise.
11195         (finish_update_gimple_call): Likewise, and simplify.
11196         (gimplify_and_update_call_from_tree): Implement
11197         update_call_from_tree functionality, avoid excessive
11198         push/pop_gimplify_context.
11199         (gimple_fold_builtin): Use only gimplify_and_update_call_from_tree.
11200         (gimple_fold_call): Likewise.
11201         * gimple-ssa-sprintf.c (try_substitute_return_value): Likewise.
11202         * tree-ssa-ccp.c (ccp_folder::fold_stmt): Likewise.
11203         (pass_fold_builtins::execute): Likewise.
11204         (optimize_stack_restore): Use replace_call_with_value.
11205         * tree-cfg.c (fold_loop_internal_call): Likewise.
11206         * tree-ssa-dce.c (maybe_optimize_arith_overflow): Use
11207         only gimplify_and_update_call_from_tree.
11208         * tree-ssa-strlen.c (handle_builtin_strlen): Likewise.
11209         (handle_builtin_strchr): Likewise.
11210         * tsan.c: Include gimple-fold.h instead of tree-ssa-propagate.h.
11211
11212 2021-04-26  Jakub Jelinek  <jakub@redhat.com>
11213
11214         PR debug/100255
11215         * vmsdbgout.c (ASM_OUTPUT_DEBUG_STRING, vmsdbgout_begin_block,
11216         vmsdbgout_end_block, lookup_filename, vmsdbgout_source_line): Remove
11217         register keywords.
11218
11219 2021-04-25  liuhongt  <hongtao.liu@intel.com>
11220
11221         PR target/98911
11222         * config/i386/i386-builtin.def (BDESC): Change the icode of
11223         the following builtins to CODE_FOR_nothing.
11224         * config/i386/i386.c (ix86_gimple_fold_builtin): Fold
11225         IX86_BUILTIN_PCMPEQB128, IX86_BUILTIN_PCMPEQW128,
11226         IX86_BUILTIN_PCMPEQD128, IX86_BUILTIN_PCMPEQQ,
11227         IX86_BUILTIN_PCMPEQB256, IX86_BUILTIN_PCMPEQW256,
11228         IX86_BUILTIN_PCMPEQD256, IX86_BUILTIN_PCMPEQQ256,
11229         IX86_BUILTIN_PCMPGTB128, IX86_BUILTIN_PCMPGTW128,
11230         IX86_BUILTIN_PCMPGTD128, IX86_BUILTIN_PCMPGTQ,
11231         IX86_BUILTIN_PCMPGTB256, IX86_BUILTIN_PCMPGTW256,
11232         IX86_BUILTIN_PCMPGTD256, IX86_BUILTIN_PCMPGTQ256.
11233         * config/i386/sse.md (avx2_eq<mode>3): Deleted.
11234         (sse2_eq<mode>3): Ditto.
11235         (sse4_1_eqv2di3): Ditto.
11236         (sse2_gt<mode>3): Rename to ..
11237         (*sse2_gt<mode>3): .. this.
11238
11239 2021-04-24  Iain Sandoe  <iain@sandoe.co.uk>
11240
11241         Revert:
11242         2021-04-24  Iain Sandoe  <iain@sandoe.co.uk>
11243
11244         PR target/100152
11245         * config/darwin.c (darwin_binds_local_p): Assume that any
11246         public symbol might be interposed for PIC code. Update function
11247         header comment to reflect current Darwin capability.
11248
11249 2021-04-24  Iain Sandoe  <iain@sandoe.co.uk>
11250
11251         PR target/100152
11252         * config/darwin.c (darwin_binds_local_p): Assume that any
11253         public symbol might be interposed for PIC code. Update function
11254         header comment to reflect current Darwin capability.
11255
11256 2021-04-24  Richard Sandiford  <richard.sandiford@arm.com>
11257
11258         * doc/sourcebuild.texi: Document no-opts and any-opts target
11259         selectors.
11260
11261 2021-04-23  YiFei Zhu  <zhuyifei1999@gmail.com>
11262
11263         * config/bpf/bpf.h (ASM_OUTPUT_ALIGNED_BSS): Use .type and .lcomm.
11264
11265 2021-04-23  YiFei Zhu  <zhuyifei1999@gmail.com>
11266
11267         * config/bpf/bpf.h (FUNCTION_BOUNDARY): Set to 64.
11268
11269 2021-04-23  Uroš Bizjak  <ubizjak@gmail.com>
11270
11271         PR target/100041
11272         * config/i386/i386-options.c (ix86_option_override_internal):
11273         Error out when -m96bit-long-double is used with 64bit targets.
11274         * config/i386/i386.md (*pushxf_rounded): Remove pattern.
11275
11276 2021-04-23  Martin Liska  <mliska@suse.cz>
11277
11278         * lto-wrapper.c: Remove FIXME about usage of
11279         hardware_concurrency. The function is not on par with
11280         what we have now.
11281
11282 2021-04-23  Uroš Bizjak  <ubizjak@gmail.com>
11283
11284         PR target/100182
11285         * config/i386/sync.md (FILD_ATOMIC/FIST_ATOMIC FP load peephole2):
11286         Copy operand 3 to operand 4.  Use sse_reg_operand
11287         as operand 3 predicate.
11288         (FILD_ATOMIC/FIST_ATOMIC FP load peephole2 with mem blockage): Ditto.
11289         (LDX_ATOMIC/STX_ATOMIC FP load peephole2): Ditto.
11290         (LDX_ATOMIC/LDX_ATOMIC FP load peephole2 with mem blockage): Ditto.
11291         (FILD_ATOMIC/FIST_ATOMIC FP store peephole2):
11292         Copy operand 1 to operand 0.
11293         (FILD_ATOMIC/FIST_ATOMIC FP store peephole2 with mem blockage): Ditto.
11294         (LDX_ATOMIC/STX_ATOMIC FP store peephole2): Ditto.
11295         (LDX_ATOMIC/LDX_ATOMIC FP store peephole2 with mem blockage): Ditto.
11296
11297 2021-04-23  Alex Coplan  <alex.coplan@arm.com>
11298
11299         PR rtl-optimization/100230
11300         * early-remat.c (early_remat::sort_candidates): Use delete[]
11301         instead of delete for array allocated with new[].
11302
11303 2021-04-23  Richard Biener  <rguenther@suse.de>
11304
11305         * genmatch.c (lower_cond): Remove VEC_COND_EXPR special-casing.
11306         (capture_info::capture_info): Likewise.
11307         (capture_info::walk_match): Likewise.
11308         (expr::gen_transform): Likewise.
11309         (dt_simplify::gen_1): Likewise.
11310         * gimple-match-head.c (maybe_resimplify_conditional_op):
11311         Remove VEC_COND_EXPR special-casing.
11312         (gimple_simplify): Likewise.
11313         * gimple.c (gimple_could_trap_p_1): Adjust.
11314         * tree-ssa-pre.c (compute_avail): Allow VEC_COND_EXPR
11315         to participate in PRE.
11316
11317 2021-04-23  Richard Biener  <rguenther@suse.de>
11318
11319         * cfganal.c (connect_infinite_loops_to_exit): First call
11320         add_noreturn_fake_exit_edges.
11321         * ipa-sra.c (process_scan_results): Do not call the now redundant
11322         add_noreturn_fake_exit_edges.
11323         * predict.c (tree_estimate_probability): Likewise.
11324         (rebuild_frequencies): Likewise.
11325         * store-motion.c (one_store_motion_pass): Likewise.
11326
11327 2021-04-23  Richard Biener  <rguenther@suse.de>
11328
11329         PR tree-optimization/100222
11330         * predict.c (pass_profile::execute): Remove redundant call to
11331         mark_irreducible_loops.
11332         (report_predictor_hitrates): Likewise.
11333
11334 2021-04-23  Richard Biener  <rguenther@suse.de>
11335
11336         * tree-ssa-loop-ivopts.c (rewrite_use_nonlinear_expr): Avoid
11337         valid_gimple_rhs_p by instead gimplifying to one.
11338
11339 2021-04-23  Richard Biener  <rguenther@suse.de>
11340
11341         PR tree-optimization/99971
11342         * tree-vect-data-refs.c (vect_slp_analyze_node_dependences):
11343         Always use TBAA for loads.
11344
11345 2021-04-23  liuhongt  <hongtao.liu@intel.com>
11346
11347         PR target/100093
11348         * config/i386/i386-options.c (ix86_option_override_internal):
11349         Clear MASK_AVX256_SPLIT_UNALIGNED_LOAD/STORE in x_target_flags
11350         when X86_TUNE_AVX256_UNALIGNED_LOAD/STORE_OPTIMAL is enabled
11351         by target attribute.
11352
11353 2021-04-23  David Edelsohn  <dje.gcc@gmail.com>
11354
11355         * config/rs6000/aix71.h (PREFERRED_DEBUGGING_TYPE): Change to
11356         DWARF2_DEBUG.
11357         * config/rs6000/aix72.h (PREFERRED_DEBUGGING_TYPE): Same.
11358
11359 2021-04-22  David Edelsohn  <dje.gcc@gmail.com>
11360
11361         * config.gcc (powerpc-ibm-aix6.*): Remove.
11362         * config/rs6000/aix61.h: Delete.
11363
11364 2021-04-22  Martin Liska  <mliska@suse.cz>
11365
11366         PR testsuite/100159
11367         PR testsuite/100192
11368         * builtins.c (expand_builtin): Fix typos and missing comments.
11369         * dwarf2out.c (gen_subprogram_die): Likewise.
11370         (gen_struct_or_union_type_die): Likewise.
11371
11372 2021-04-22  Uroš Bizjak  <ubizjak@gmail.com>
11373
11374         PR target/100119
11375         * config/i386/i386-expand.c (ix86_expand_convert_uns_sidf_sse):
11376         Remove the sign with FE_DOWNWARD, where x - x = -0.0.
11377
11378 2021-04-21  Iain Sandoe  <iain@sandoe.co.uk>
11379
11380         * config/i386/darwin.h (TARGET_64BIT): Remove definition
11381         based on TARGET_ISA_64BIT.
11382         (TARGET_64BIT_P): Remove definition based on
11383         TARGET_ISA_64BIT_P().
11384
11385 2021-04-21  Martin Liska  <mliska@suse.cz>
11386
11387         Revert:
11388         2021-04-21  Martin Liska  <mliska@suse.cz>
11389
11390         * lto-wrapper.c (cpuset_popcount): Remove.
11391         (init_num_threads): Remove and use hardware_concurrency.
11392
11393 2021-04-21  Martin Liska  <mliska@suse.cz>
11394
11395         PR jit/98615
11396         * main.c (main): Call toplev::finalize in CHECKING_P mode.
11397         * ipa-modref.c (ipa_modref_c_finalize): summaries are NULL
11398         when incremental LTO linking happens.
11399
11400 2021-04-21  Martin Liska  <mliska@suse.cz>
11401
11402         * lto-wrapper.c (run_gcc): When -flto=jobserver is used, but the
11403         makeserver cannot be detected, then use -flto=N fallback.
11404
11405 2021-04-21  Richard Sandiford  <richard.sandiford@arm.com>
11406
11407         * acinclude.m4 (gcc_AC_INITFINI_ARRAY): When cross-compiling,
11408         default to yes for aarch64-linux-gnu.
11409         * configure: Regenerate.
11410
11411 2021-04-21  Martin Liska  <mliska@suse.cz>
11412
11413         * lto-wrapper.c (cpuset_popcount): Remove.
11414         (init_num_threads): Remove and use hardware_concurrency.
11415
11416 2021-04-21  Martin Liska  <mliska@suse.cz>
11417
11418         * config/i386/i386.c: Remove superfluous || TARGET_MACHO
11419         which remains to be '(... || 0)' and clang complains about it.
11420         * dwarf2out.c (AT_vms_delta): Declare conditionally.
11421         (add_AT_vms_delta): Likewise.
11422         * tree.c (fld_simplified_type): Use rather more common pattern
11423         for disabling of something (#if 0).
11424         (get_tree_code_name): Likewise.
11425         (verify_type_variant): Likewise.
11426
11427 2021-04-21  Martin Liska  <mliska@suse.cz>
11428
11429         * config/i386/i386-expand.c (decide_alignment): Use newly named
11430         macro TARGET_CPU_P.
11431         * config/i386/i386.c (ix86_decompose_address): Likewise.
11432         (ix86_address_cost): Likewise.
11433         (ix86_lea_outperforms): Likewise.
11434         (ix86_avoid_lea_for_addr): Likewise.
11435         (ix86_add_stmt_cost): Likewise.
11436         * config/i386/i386.h (TARGET_*): Remove.
11437         (TARGET_CPU_P): New macro.
11438         * config/i386/i386.md: Use newly named macro TARGET_CPU_P.
11439         * config/i386/x86-tune-sched-atom.c (do_reorder_for_imul): Likewise.
11440         (swap_top_of_ready_list): Likewise.
11441         (ix86_atom_sched_reorder): Likewise.
11442         * config/i386/x86-tune-sched-bd.c (ix86_bd_has_dispatch): Likewise.
11443         * config/i386/x86-tune-sched.c (ix86_adjust_cost): Likewise.
11444
11445 2021-04-21  Martin Liska  <mliska@suse.cz>
11446
11447         * config/i386/i386-options.c (TARGET_EXPLICIT_NO_SAHF_P):
11448         Define.
11449         (SET_TARGET_NO_SAHF): Likewise.
11450         (TARGET_EXPLICIT_PREFETCH_SSE_P): Likewise.
11451         (SET_TARGET_PREFETCH_SSE): Likewise.
11452         (TARGET_EXPLICIT_NO_TUNE_P): Likewise.
11453         (SET_TARGET_NO_TUNE): Likewise.
11454         (TARGET_EXPLICIT_NO_80387_P): Likewise.
11455         (SET_TARGET_NO_80387): Likewise.
11456         (DEF_PTA): New.
11457         * config/i386/i386.h (TARGET_*): Remove.
11458         * opth-gen.awk: Generate new used macros.
11459
11460 2021-04-21  Martin Liska  <mliska@suse.cz>
11461
11462         * config/i386/i386.h (PTA_*): Remove.
11463         (enum pta_flag): New.
11464         (DEF_PTA): Generate PTA_* values from i386-isa.def.
11465         * config/i386/i386-isa.def: New file.
11466
11467 2021-04-21  Alex Coplan  <alex.coplan@arm.com>
11468
11469         PR target/99988
11470         * config/aarch64/aarch64-bti-insert.c (aarch64_bti_j_insn_p): New.
11471         (rest_of_insert_bti): Avoid inserting duplicate bti j insns for
11472         jump table targets.
11473
11474 2021-04-21  H.J. Lu  <hjl.tools@gmail.com>
11475
11476         * config.gcc: Install mwaitintrin.h for i[34567]86-*-* and
11477         x86_64-*-* targets.
11478         * common/config/i386/i386-common.c (OPTION_MASK_ISA2_MWAIT_SET):
11479         New.
11480         (OPTION_MASK_ISA2_MWAIT_UNSET): Likewise.
11481         (ix86_handle_option): Handle -mmwait.
11482         * config/i386/i386-builtins.c (ix86_init_mmx_sse_builtins):
11483         Replace OPTION_MASK_ISA_SSE3 with OPTION_MASK_ISA2_MWAIT on
11484         __builtin_ia32_monitor and __builtin_ia32_mwait.
11485         * config/i386/i386-options.c (isa2_opts): Add -mmwait.
11486         (ix86_valid_target_attribute_inner_p): Likewise.
11487         (ix86_option_override_internal): Enable mwait/monitor
11488         instructions for -msse3.
11489         * config/i386/i386.h (TARGET_MWAIT): New.
11490         (TARGET_MWAIT_P): Likewise.
11491         * config/i386/i386.opt: Add -mmwait.
11492         * config/i386/mwaitintrin.h: New file.
11493         * config/i386/pmmintrin.h: Include <mwaitintrin.h>.
11494         * config/i386/sse.md (sse3_mwait): Replace TARGET_SSE3 with
11495         TARGET_MWAIT.
11496         (@sse3_monitor_<mode>): Likewise.
11497         * config/i386/x86gprintrin.h: Include <mwaitintrin.h>.
11498         * doc/extend.texi: Document mwait target attribute.
11499         * doc/invoke.texi: Document -mmwait.
11500
11501 2021-04-21  Martin Liska  <mliska@suse.cz>
11502
11503         * config/i386/i386-options.c (DEF_ENUM): Remove it.
11504         * config/i386/i386-opts.h (DEF_ENUM): Likewise.
11505         * config/i386/stringop.def (DEF_ENUM): Likewise.
11506
11507 2021-04-21  Martin Liska  <mliska@suse.cz>
11508
11509         * tree-cfg.c (gimple_verify_flow_info): Use qD instead
11510         of print_generic_expr.
11511
11512 2021-04-21  Jakub Jelinek  <jakub@redhat.com>
11513
11514         PR rtl-optimization/100148
11515         * cprop.c (constprop_register): Use next_nondebug_insn instead of
11516         NEXT_INSN.
11517
11518 2021-04-21  Martin Liska  <mliska@suse.cz>
11519
11520         PR ipa/98815
11521         * cgraphunit.c (cgraph_node::analyze): Remove duplicate
11522         free_dominance_info calls.
11523
11524 2021-04-21  Richard Biener  <rguenther@suse.de>
11525
11526         * gimple-fold.c (maybe_fold_reference): Remove is_lhs
11527         parameter (and assume it to be false).
11528         (fold_gimple_assign): Adjust, remove all callers of
11529         maybe_fold_reference calling it with is_lhs true.
11530         (gimple_fold_call): Likewise.
11531         (fold_stmt_1): Likewise.
11532
11533 2021-04-21  Richard Biener  <rguenther@suse.de>
11534
11535         * fold-const.c (pedantic_non_lvalue_loc): Remove.
11536         (fold_binary_loc): Adjust.
11537         (fold_ternary_loc): Likewise.
11538
11539 2021-04-21  Richard Sandiford  <richard.sandiford@arm.com>
11540
11541         PR middle-end/100130
11542         * varasm.c (get_block_for_decl): Make sure that any use of the
11543         retain attribute matches the section's retain flag.
11544         (switch_to_section): Check for retain mismatches even when
11545         changing sections, but do not warn if the given decl is the
11546         section's named.decl.
11547         (output_object_block): Pass the first decl in the block (if any)
11548         to switch_to_section.
11549
11550 2021-04-20  H.J. Lu  <hjl.tools@gmail.com>
11551
11552         * config/i386/i386-c.c (ix86_target_macros_internal): Define
11553         __CRC32__ for -mcrc32.
11554         * config/i386/i386-options.c (ix86_option_override_internal):
11555         Enable crc32 instruction for -msse4.2.
11556         * config/i386/i386.md (sse4_2_crc32<mode>): Remove TARGET_SSE4_2
11557         check.
11558         (sse4_2_crc32di): Likewise.
11559         * config/i386/ia32intrin.h: Use crc32 target option for CRC32
11560         intrinsics.
11561
11562 2021-04-20  Segher Boessenkool  <segher@kernel.crashing.org>
11563
11564         PR target/100108
11565         * config/rs6000/rs6000.c (rs6000_machine_from_flags): Do not consider
11566         OPTION_MASK_ISEL.
11567
11568 2021-04-20  Martin Liska  <mliska@suse.cz>
11569
11570         * doc/invoke.texi: Fix typo.
11571         * params.opt: Likewise.
11572
11573 2021-04-20  Martin Liska  <mliska@suse.cz>
11574
11575         * doc/invoke.texi: Document new param.
11576
11577 2021-04-19  Andrew MacLeod  <amacleod@redhat.com>
11578
11579         PR tree-optimization/100081
11580         * gimple-range-cache.h (ranger_cache): Inherit from gori_compute
11581         rather than gori_compute_cache.
11582         * gimple-range-gori.cc (is_gimple_logical_p): Move to top of file.
11583         (range_def_chain::m_logical_depth): New member.
11584         (range_def_chain::range_def_chain): Initialize m_logical_depth.
11585         (range_def_chain::get_def_chain): Don't build defchains through more
11586         than LOGICAL_LIMIT logical expressions.
11587         * params.opt (param_ranger_logical_depth): New.
11588
11589 2021-04-19  Richard Earnshaw  <rearnsha@arm.com>
11590
11591         PR target/100067
11592         * config/arm/arm.c (arm_configure_build_target): Do not strip
11593         extended FPU/SIMD feature bits from the target ISA when -mfpu
11594         is specified (partial revert of r11-8168).
11595
11596 2021-04-19  Thomas Schwinge  <thomas@codesourcery.com>
11597
11598         * params.opt (-param=openacc-kernels=): Add.
11599         * omp-oacc-kernels-decompose.cc
11600         (pass_omp_oacc_kernels_decompose::gate): Use it.
11601         * doc/invoke.texi (-fopenacc-kernels=@var{mode}): Move...
11602         (--param): ... here, 'openacc-kernels'.
11603
11604 2021-04-19  Martin Liska  <mliska@suse.cz>
11605
11606         PR c/100143
11607         * gengtype.c (finish_root_table): Align function arguments
11608         in between declaration and definition.
11609
11610 2021-04-19  Eric Botcazou  <ebotcazou@adacore.com>
11611
11612         * config/i386/winnt.c (i386_pe_seh_cold_init): Properly deal with
11613         frames larger than the SEH maximum frame size.
11614
11615 2021-04-18  Segher Boessenkool  <segher@kernel.crashing.org>
11616
11617         PR rtl-optimization/99927
11618         * combine.c (distribute_notes) [REG_UNUSED]: If the register already
11619         is dead, just drop it.
11620
11621 2021-04-17  Iain Buclaw  <ibuclaw@gdcproject.org>
11622
11623         PR d/99914
11624         * config/i386/winnt-d.c (TARGET_D_TEMPLATES_ALWAYS_COMDAT): Define.
11625         * doc/tm.texi: Regenerate.
11626         * doc/tm.texi.in (D language and ABI): Add @hook for
11627         TARGET_D_TEMPLATES_ALWAYS_COMDAT.
11628
11629 2021-04-17  Iain Buclaw  <ibuclaw@gdcproject.org>
11630
11631         * config/darwin-d.c (darwin_d_handle_target_object_format): New
11632         function.
11633         (darwin_d_register_target_info): New function.
11634         (TARGET_D_REGISTER_OS_TARGET_INFO): Define.
11635         * config/dragonfly-d.c (dragonfly_d_handle_target_object_format): New
11636         function.
11637         (dragonfly_d_register_target_info): New function.
11638         (TARGET_D_REGISTER_OS_TARGET_INFO): Define.
11639         * config/freebsd-d.c (freebsd_d_handle_target_object_format): New
11640         function.
11641         (freebsd_d_register_target_info): New function.
11642         (TARGET_D_REGISTER_OS_TARGET_INFO): Define.
11643         * config/glibc-d.c (glibc_d_handle_target_object_format): New
11644         function.
11645         (glibc_d_register_target_info): New function.
11646         (TARGET_D_REGISTER_OS_TARGET_INFO): Define.
11647         * config/i386/i386-d.c (ix86_d_handle_target_object_format): New
11648         function.
11649         (ix86_d_register_target_info): Add ix86_d_handle_target_object_format
11650         as handler for objectFormat key.
11651         * config/i386/winnt-d.c (winnt_d_handle_target_object_format): New
11652         function.
11653         (winnt_d_register_target_info): New function.
11654         (TARGET_D_REGISTER_OS_TARGET_INFO): Define.
11655         * config/netbsd-d.c (netbsd_d_handle_target_object_format): New
11656         function.
11657         (netbsd_d_register_target_info): New function.
11658         (TARGET_D_REGISTER_OS_TARGET_INFO): Define.
11659         * config/openbsd-d.c (openbsd_d_handle_target_object_format): New
11660         function.
11661         (openbsd_d_register_target_info): New function.
11662         (TARGET_D_REGISTER_OS_TARGET_INFO): Define.
11663         * config/pa/pa-d.c (pa_d_handle_target_object_format): New function.
11664         (pa_d_register_target_info): Add pa_d_handle_target_object_format as
11665         handler for objectFormat key.
11666         * config/rs6000/rs6000-d.c (rs6000_d_handle_target_object_format): New
11667         function.
11668         (rs6000_d_register_target_info): Add
11669         rs6000_d_handle_target_object_format as handler for objectFormat key.
11670         * config/sol2-d.c (solaris_d_handle_target_object_format): New
11671         function.
11672         (solaris_d_register_target_info): New function.
11673         (TARGET_D_REGISTER_OS_TARGET_INFO): Define.
11674
11675 2021-04-16  Jakub Jelinek  <jakub@redhat.com>
11676
11677         PR target/91710
11678         * config/aarch64/aarch64.c (aarch64_function_arg_alignment): Change
11679         abi_break argument from bool * to unsigned *, store there the pre-GCC 9
11680         alignment.
11681         (aarch64_layout_arg, aarch64_gimplify_va_arg_expr): Adjust callers.
11682         (aarch64_function_arg_regno_p): Likewise.  Only emit -Wpsabi note if
11683         the old and new alignment after applying MIN/MAX to it is different.
11684
11685 2021-04-16  Tamar Christina  <tamar.christina@arm.com>
11686
11687         PR target/100048
11688         * config/aarch64/aarch64-sve.md (@aarch64_sve_trn1_conv<mode>): New.
11689         * config/aarch64/aarch64.c (aarch64_expand_sve_const_pred_trn): Use new
11690         TRN optab.
11691         * config/aarch64/iterators.md (UNSPEC_TRN1_CONV): New.
11692
11693 2021-04-16  Bill Schmidt  <wschmidt@linux.ibm.com>
11694
11695         * doc/extend.texi (PowerPC AltiVec/VSX Built-in Functions): Revise
11696         this section and its subsections.
11697
11698 2021-04-16  Jakub Jelinek  <jakub@redhat.com>
11699
11700         PR target/100075
11701         * config/aarch64/aarch64.md (*neg_asr_si2_extr, *extrsi5_insn_di): New
11702         define_insn patterns.
11703
11704 2021-04-16  Richard Sandiford  <richard.sandiford@arm.com>
11705
11706         PR rtl-optimization/98689
11707         * reg-notes.def (UNTYPED_CALL): New note.
11708         * combine.c (distribute_notes): Handle it.
11709         * emit-rtl.c (try_split): Likewise.
11710         * rtlanal.c (rtx_properties::try_to_add_insn): Likewise.  Assume
11711         that calls with the note implicitly set all return value registers.
11712         * builtins.c (expand_builtin_apply): Add a REG_UNTYPED_CALL
11713         to untyped_calls.
11714
11715 2021-04-16  Richard Sandiford  <richard.sandiford@arm.com>
11716
11717         PR rtl-optimization/99596
11718         * rtlanal.c (rtx_properties::try_to_add_insn): Don't add global
11719         register accesses for const calls.  Assume that pure functions
11720         can only read from global registers.  Ignore cases in which
11721         the stack pointer has been marked global.
11722
11723 2021-04-16  Jakub Jelinek  <jakub@redhat.com>
11724
11725         PR target/99767
11726         * tree-vect-loop.c (vect_transform_loop): Don't remove just
11727         dead scalar .MASK_LOAD calls, but also dead .COND_* calls - replace
11728         them by their last argument.
11729
11730 2021-04-15  Martin Liska  <mliska@suse.cz>
11731
11732         * doc/invoke.texi: Other params don't use it, remove it.
11733
11734 2021-04-15  Richard Biener  <rguenther@suse.de>
11735
11736         * gimple-builder.h: Add deprecation note.
11737
11738 2021-04-15  Richard Sandiford  <richard.sandiford@arm.com>
11739
11740         PR c++/98852
11741         * attribs.h (restrict_type_identity_attributes_to): Declare.
11742         * attribs.c (restrict_type_identity_attributes_to): New function.
11743
11744 2021-04-15  Richard Sandiford  <richard.sandiford@arm.com>
11745
11746         PR c/98852
11747         * attribs.h (affects_type_identity_attributes): Declare.
11748         * attribs.c (remove_attributes_matching): New function.
11749         (affects_type_identity_attributes): Likewise.
11750
11751 2021-04-15  Jakub Jelinek  <jakub@redhat.com>
11752
11753         PR target/100056
11754         * config/aarch64/aarch64.md (*<LOGICAL:optab>_<SHIFT:optab><mode>3):
11755         Add combine splitters for *<LOGICAL:optab>_ashl<mode>3 with
11756         ZERO_EXTEND, SIGN_EXTEND or AND.
11757
11758 2021-04-14  Richard Sandiford  <richard.sandiford@arm.com>
11759
11760         PR rtl-optimization/99929
11761         * rtl.h (same_vector_encodings_p): New function.
11762         * cse.c (exp_equiv_p): Check that CONST_VECTORs have the same encoding.
11763         * cselib.c (rtx_equal_for_cselib_1): Likewise.
11764         * jump.c (rtx_renumbered_equal_p): Likewise.
11765         * lra-constraints.c (operands_match_p): Likewise.
11766         * reload.c (operands_match_p): Likewise.
11767         * rtl.c (rtx_equal_p_cb, rtx_equal_p): Likewise.
11768
11769 2021-04-14  Richard Sandiford  <richard.sandiford@arm.com>
11770
11771         * print-rtl.c (rtx_writer::print_rtx_operand_codes_E_and_V): Print
11772         more information about variable-length CONST_VECTORs.
11773
11774 2021-04-14  Vladimir N. Makarov  <vmakarov@redhat.com>
11775
11776         PR rtl-optimization/100066
11777         * lra-constraints.c (split_reg): Check paradoxical_subreg_p for
11778         ordered modes when choosing splitting mode for hard reg.
11779
11780 2021-04-14  Richard Sandiford  <richard.sandiford@arm.com>
11781
11782         PR target/99246
11783         * config/aarch64/aarch64.c (aarch64_expand_sve_const_vector_sel):
11784         New function.
11785         (aarch64_expand_sve_const_vector): Use it for nelts_per_pattern==2.
11786
11787 2021-04-14  Andreas Krebbel  <krebbel@linux.ibm.com>
11788
11789         * config/s390/s390-builtins.def (O_M5, O_M12, ...): Add new macros
11790         for mask operand types.
11791         (s390_vec_permi_s64, s390_vec_permi_b64, s390_vec_permi_u64)
11792         (s390_vec_permi_dbl, s390_vpdi): Use the M5 type for the immediate
11793         operand.
11794         (s390_vec_msum_u128, s390_vmslg): Use the M12 type for the
11795         immediate operand.
11796         * config/s390/s390.c (s390_const_operand_ok): Check the new
11797         operand types and generate a list of valid values.
11798
11799 2021-04-14  Iain Buclaw  <ibuclaw@gdcproject.org>
11800
11801         * doc/tm.texi: Regenerate.
11802         * doc/tm.texi.in (D language and ABI): Add @hook for
11803         TARGET_D_REGISTER_OS_TARGET_INFO.
11804
11805 2021-04-14  Iain Buclaw  <ibuclaw@gdcproject.org>
11806
11807         * config/aarch64/aarch64-d.c (aarch64_d_handle_target_float_abi): New
11808         function.
11809         (aarch64_d_register_target_info): New function.
11810         * config/aarch64/aarch64-protos.h (aarch64_d_register_target_info):
11811         Declare.
11812         * config/aarch64/aarch64.h (TARGET_D_REGISTER_CPU_TARGET_INFO):
11813         Define.
11814         * config/arm/arm-d.c (arm_d_handle_target_float_abi): New function.
11815         (arm_d_register_target_info): New function.
11816         * config/arm/arm-protos.h (arm_d_register_target_info): Declare.
11817         * config/arm/arm.h (TARGET_D_REGISTER_CPU_TARGET_INFO): Define.
11818         * config/i386/i386-d.c (ix86_d_handle_target_float_abi): New function.
11819         (ix86_d_register_target_info): New function.
11820         * config/i386/i386-protos.h (ix86_d_register_target_info): Declare.
11821         * config/i386/i386.h (TARGET_D_REGISTER_CPU_TARGET_INFO): Define.
11822         * config/mips/mips-d.c (mips_d_handle_target_float_abi): New function.
11823         (mips_d_register_target_info): New function.
11824         * config/mips/mips-protos.h (mips_d_register_target_info): Declare.
11825         * config/mips/mips.h (TARGET_D_REGISTER_CPU_TARGET_INFO): Define.
11826         * config/pa/pa-d.c (pa_d_handle_target_float_abi): New function.
11827         (pa_d_register_target_info): New function.
11828         * config/pa/pa-protos.h (pa_d_register_target_info): Declare.
11829         * config/pa/pa.h (TARGET_D_REGISTER_CPU_TARGET_INFO): Define.
11830         * config/riscv/riscv-d.c (riscv_d_handle_target_float_abi): New
11831         function.
11832         (riscv_d_register_target_info): New function.
11833         * config/riscv/riscv-protos.h (riscv_d_register_target_info): Declare.
11834         * config/riscv/riscv.h (TARGET_D_REGISTER_CPU_TARGET_INFO): Define.
11835         * config/rs6000/rs6000-d.c (rs6000_d_handle_target_float_abi): New
11836         function.
11837         (rs6000_d_register_target_info): New function.
11838         * config/rs6000/rs6000-protos.h (rs6000_d_register_target_info):
11839         Declare.
11840         * config/rs6000/rs6000.h (TARGET_D_REGISTER_CPU_TARGET_INFO): Define.
11841         * config/s390/s390-d.c (s390_d_handle_target_float_abi): New function.
11842         (s390_d_register_target_info): New function.
11843         * config/s390/s390-protos.h (s390_d_register_target_info): Declare.
11844         * config/s390/s390.h (TARGET_D_REGISTER_CPU_TARGET_INFO): Define.
11845         * config/sparc/sparc-d.c (sparc_d_handle_target_float_abi): New
11846         function.
11847         (sparc_d_register_target_info): New function.
11848         * config/sparc/sparc-protos.h (sparc_d_register_target_info): Declare.
11849         * config/sparc/sparc.h (TARGET_D_REGISTER_CPU_TARGET_INFO): Define.
11850         * doc/tm.texi: Regenerate.
11851         * doc/tm.texi.in (D language and ABI): Add @hook for
11852         TARGET_D_REGISTER_CPU_TARGET_INFO.
11853
11854 2021-04-14  Iain Buclaw  <ibuclaw@gdcproject.org>
11855
11856         * config/i386/i386-d.c (ix86_d_has_stdcall_convention): New function.
11857         * config/i386/i386-protos.h (ix86_d_has_stdcall_convention): Declare.
11858         * config/i386/i386.h (TARGET_D_HAS_STDCALL_CONVENTION): Define.
11859         * doc/tm.texi: Regenerate.
11860         * doc/tm.texi.in (D language and ABI): Add @hook for
11861         TARGET_D_HAS_STDCALL_CONVENTION.
11862
11863 2021-04-14  Richard Biener  <rguenther@suse.de>
11864
11865         * tree-cfg.c (verify_gimple_assign_ternary): Verify that
11866         VEC_COND_EXPRs have a gimple_val condition.
11867         * tree-ssa-propagate.c (valid_gimple_rhs_p): VEC_COND_EXPR
11868         can no longer have a GENERIC condition.
11869
11870 2021-04-14  Richard Earnshaw  <rearnsha@arm.com>
11871
11872         PR target/100067
11873         * config/arm/arm.c (arm_configure_build_target): Strip isa_all_fpbits
11874         from the isa_delta when -mfpu has been used.
11875         (arm_options_perform_arch_sanity_checks): It's the architecture that
11876         lacks an FPU not the processor.
11877
11878 2021-04-13  Richard Biener  <rguenther@suse.de>
11879
11880         PR tree-optimization/100053
11881         * tree-ssa-sccvn.c (vn_nary_op_get_predicated_value): Do
11882         not use optimistic dominance queries for backedges to validate
11883         predicated values.
11884         (dominated_by_p_w_unex): Add parameter to ignore executable
11885         state on backedges.
11886         (rpo_elim::eliminate_avail): Adjust.
11887
11888 2021-04-13  Jakub Jelinek  <jakub@redhat.com>
11889
11890         PR target/100028
11891         * config/aarch64/aarch64.md (*aarch64_bfxil<mode>_extr,
11892         *aarch64_bfxilsi_extrdi): New define_insn patterns.
11893
11894 2021-04-13  Jakub Jelinek  <jakub@redhat.com>
11895
11896         PR target/99648
11897         * simplify-rtx.c (simplify_immed_subreg): For MODE_COMPOSITE_P
11898         outermode, return NULL if the result doesn't encode back to the
11899         original byte sequence.
11900         (simplify_gen_subreg): Don't create SUBREGs from constants to
11901         MODE_COMPOSITE_P outermode.
11902
11903 2021-04-12  Jakub Jelinek  <jakub@redhat.com>
11904
11905         PR rtl-optimization/99905
11906         * combine.c (expand_compound_operation): If pos + len > modewidth,
11907         perform the right shift by pos in inner_mode and then convert to mode,
11908         instead of trying to simplify a shift of rtx with inner_mode by pos
11909         as if it was a shift in mode.
11910
11911 2021-04-12  Jakub Jelinek  <jakub@redhat.com>
11912
11913         PR debug/99830
11914         * combine.c (simplify_and_const_int_1): Don't optimize varop
11915         away if it has side-effects.
11916
11917 2021-04-12  Martin Liska  <mliska@suse.cz>
11918
11919         * doc/extend.texi: Escape @smallexample content.
11920
11921 2021-04-12  Stefan Schulze Frielinghaus  <stefansf@linux.ibm.com>
11922
11923         * config/s390/s390.md ("*movdi_31", "*movdi_64"): Add
11924           alternative in order to load a DFP zero.
11925
11926 2021-04-12  Martin Liska  <mliska@suse.cz>
11927
11928         * doc/extend.texi: Be more precise in documentation
11929         of symver attribute.
11930
11931 2021-04-12  Martin Liska  <mliska@suse.cz>
11932
11933         PR sanitizer/99877
11934         * gimplify.c (gimplify_expr): Right now, we unpoison all
11935         variables before a goto <dest>. We should not do it if we are
11936         in a omp context.
11937
11938 2021-04-12  Cui,Lili  <lili.cui@intel.com>
11939
11940         * common/config/i386/cpuinfo.h (get_intel_cpu): Handle
11941         rocketlake.
11942         * common/config/i386/i386-common.c (processor_names): Add
11943         rocketlake.
11944         (processor_alias_table): Add rocketlake.
11945         * common/config/i386/i386-cpuinfo.h (processor_subtypes): Add
11946         INTEL_COREI7_ROCKETLAKE.
11947         * config.gcc: Add -march=rocketlake.
11948         * config/i386/i386-c.c (ix86_target_macros_internal): Handle
11949         rocketlake.
11950         * config/i386/i386-options.c (m_ROCKETLAKE)  : Define.
11951         (processor_cost_table): Add rocketlake cost.
11952         * config/i386/i386.h (ix86_size_cost) : Define
11953         TARGET_ROCKETLAKE.
11954         (processor_type) : Add PROCESSOR_ROCKETLAKE.
11955         (PTA_ROCKETLAKE): Ditto.
11956         * doc/extend.texi: Add rocketlake.
11957         * doc/invoke.texi: Add rocketlake.
11958
11959 2021-04-12  Cui,Lili  <lili.cui@intel.com>
11960
11961         * config/i386/i386.h (PTA_ALDERLAKE): Change alderlake ISA list.
11962         * config/i386/i386-options.c (m_CORE_AVX2): Add m_ALDERLAKE.
11963         * common/config/i386/cpuinfo.h (get_intel_cpu): Add AlderLake model.
11964         * doc/invoke.texi: Change alderlake ISA list.
11965
11966 2021-04-11  Hafiz Abid Qadeer  <abidh@codesourcery.com>
11967
11968         PR middle-end/98088
11969         * omp-expand.c (expand_oacc_collapse_init): Update condition in
11970         a gcc_assert.
11971
11972 2021-04-10  H.J. Lu  <hjl.tools@gmail.com>
11973
11974         PR target/99744
11975         * config/i386/serializeintrin.h (_serialize): Defined as macro.
11976
11977 2021-04-10  Jakub Jelinek  <jakub@redhat.com>
11978
11979         PR lto/99849
11980         * expr.c (expand_expr_addr_expr_1): Test is_global_var rather than
11981         just TREE_STATIC on COMPOUND_LITERAL_EXPR_DECLs.
11982
11983 2021-04-10  Jakub Jelinek  <jakub@redhat.com>
11984
11985         PR middle-end/99989
11986         * gimple-ssa-warn-alloca.c
11987         (alloca_type_and_limit::alloca_type_and_limit): Initialize limit to
11988         0 with integer precision unconditionally.
11989
11990 2021-04-10  Jakub Jelinek  <jakub@redhat.com>
11991
11992         PR rtl-optimization/98601
11993         * rtlanal.c (rtx_addr_can_trap_p_1): Allow in assert unknown size
11994         not just for BLKmode, but also for VOIDmode.  For STRICT_ALIGNMENT
11995         unaligned_mems handle VOIDmode like BLKmode.
11996
11997 2021-04-10  Jan Hubicka  <hubicka@ucw.cz>
11998
11999         PR lto/99857
12000         * tree.c (free_lang_data_in_decl): Do not release body of
12001         declare_variant_alt.
12002
12003 2021-04-09  Richard Sandiford  <richard.sandiford@arm.com>
12004
12005         * config/aarch64/aarch64.c (aarch64_option_restore): If the
12006         architecture was specified explicitly and the tuning wasn't,
12007         tune for the architecture rather than the configured default CPU.
12008
12009 2021-04-09  Richard Sandiford  <richard.sandiford@arm.com>
12010
12011         * config/aarch64/aarch64.md (tlsdesc_small_sve_<mode>): Use X30
12012         as the temporary register.
12013
12014 2021-04-09  Martin Liska  <mliska@suse.cz>
12015
12016         * doc/extend.texi: Move non-target attributes on the top level.
12017
12018 2021-04-09  Martin Liska  <mliska@suse.cz>
12019
12020         * doc/invoke.texi: Document minimum and maximum value of the
12021         argument for both supported compression algorithms.
12022
12023 2021-04-08  David Edelsohn  <dje.gcc@gmail.com>
12024
12025         * config/rs6000/rs6000.c (rs6000_xcoff_select_section): Select
12026         TLS BSS before TLS data.
12027         * config/rs6000/xcoff.h (ASM_OUTPUT_TLS_COMMON): Use .comm.
12028
12029 2021-04-08  Richard Sandiford  <richard.sandiford@arm.com>
12030
12031         * doc/sourcebuild.texi (stdint_types_mbig_endian): Document.
12032
12033 2021-04-08  Richard Sandiford  <richard.sandiford@arm.com>
12034
12035         * match.pd: Extend vec_cond folds to handle shifts.
12036
12037 2021-04-08  Maciej W. Rozycki  <macro@orcam.me.uk>
12038
12039         * config/vax/vax.md: Fix comment for `*bit<mode>' pattern's
12040         peephole.
12041
12042 2021-04-08  Alex Coplan  <alex.coplan@arm.com>
12043
12044         PR target/99647
12045         * config/arm/iterators.md (MVE_vecs): New.
12046         (V_elem): Also handle V2DF.
12047         * config/arm/mve.md (*mve_mov<mode>): Rename to ...
12048         (*mve_vdup<mode>): ... this. Remove second alternative since
12049         vec_duplicate of const_int is not canonical RTL, and we don't
12050         want to match symbol_refs.
12051         (*mve_vec_duplicate<mode>): Delete (pattern is redundant).
12052
12053 2021-04-08  Xionghu Luo  <luoxhu@linux.ibm.com>
12054
12055         * fold-const.c (fold_single_bit_test): Fix typo.
12056         * print-rtl.c (print_rtx_insn_vec): Call print_rtl_single
12057         instead.
12058
12059 2021-04-07  Richard Sandiford  <richard.sandiford@arm.com>
12060
12061         PR tree-optimization/97513
12062         * tree-vect-slp.c (vect_add_slp_permutation): New function,
12063         split out from...
12064         (vectorizable_slp_permutation): ...here.  Detect cases in which
12065         all VEC_PERM_EXPRs are guaranteed to have the same stepped
12066         permute vector and only generate one permute vector for that case.
12067         Extend that case to handle variable-length vectors.
12068
12069 2021-04-07  Richard Sandiford  <richard.sandiford@arm.com>
12070
12071         PR tree-optimization/99873
12072         * tree-vect-slp.c (vect_slp_prefer_store_lanes_p): New function.
12073         (vect_build_slp_instance): Don't split store groups that could
12074         use IFN_STORE_LANES.
12075
12076 2021-04-07  Jakub Jelinek  <jakub@redhat.com>
12077
12078         PR target/99872
12079         * varasm.c (output_constant_pool_contents): Don't strip name encoding
12080         from XSTR (desc->sym, 0) or from label before passing those to
12081         ASM_OUTPUT_DEF.
12082
12083 2021-04-07  Richard Biener  <rguenther@suse.de>
12084
12085         PR tree-optimization/99954
12086         * tree-loop-distribution.c: Include tree-affine.h.
12087         (generate_memcpy_builtin): Try using tree-affine to prove
12088         non-overlap.
12089         (loop_distribution::classify_builtin_ldst): Always classify
12090         as PKIND_MEMMOVE.
12091
12092 2021-04-07  Richard Biener  <rguenther@suse.de>
12093
12094         PR tree-optimization/99947
12095         * tree-vect-loop.c (vectorizable_induction): Pre-allocate
12096         steps vector to avoid pushing elements from the reallocated
12097         vector.
12098
12099 2021-04-07  Richard Biener  <rguenther@suse.de>
12100
12101         * tree-ssa-sccvn.h (print_vn_reference_ops): Declare.
12102         * tree-ssa-pre.c (print_pre_expr): Factor out VN reference operand
12103         printing...
12104         * tree-ssa-sccvn.c (print_vn_reference_ops): ... into this new
12105         function.
12106         (debug_vn_reference_ops): New.
12107
12108 2021-04-07  Bin Cheng  <bin.cheng@linux.alibaba.com>
12109
12110         PR tree-optimization/98736
12111         * tree-loop-distribution.c
12112         * (loop_distribution::bb_top_order_init):
12113         Compute RPO with programing order preserved by calling function
12114         rev_post_order_and_mark_dfs_back_seme.
12115
12116 2021-04-06  Vladimir N. Makarov  <vmakarov@redhat.com>
12117
12118         PR target/99781
12119         * lra-constraints.c (split_reg): Don't check paradoxical_subreg_p.
12120         * lra-lives.c (clear_sparseset_regnos, regnos_in_sparseset_p): New
12121         functions.
12122         (process_bb_lives): Don't update biggest mode of hard reg for
12123         implicit in multi-register group.  Use the new functions for
12124         updating dead_set and unused_set by register notes.
12125
12126 2021-04-06  Xianmiao Qu  <xianmiao_qu@c-sky.com>
12127
12128         * config/csky/csky_pipeline_ck802.md : Use insn reservation name
12129         instead of *.
12130
12131 2021-04-06  H.J. Lu  <hjl.tools@gmail.com>
12132
12133         * config/i386/x86-tune-costs.h (skylake_memcpy): Updated.
12134         (skylake_memset): Likewise.
12135         (skylake_cost): Change CLEAR_RATIO to 17.
12136         * config/i386/x86-tune.def (X86_TUNE_PREFER_KNOWN_REP_MOVSB_STOSB):
12137         Replace m_CANNONLAKE, m_ICELAKE_CLIENT, m_ICELAKE_SERVER,
12138         m_TIGERLAKE and m_SAPPHIRERAPIDS with m_SKYLAKE and m_CORE_AVX512.
12139
12140 2021-04-06  Richard Biener  <rguenther@suse.de>
12141
12142         PR tree-optimization/99880
12143         * tree-vect-loop.c (maybe_set_vectorized_backedge_value): Only
12144         set vectorized defs of relevant PHIs.
12145
12146 2021-04-06  Richard Biener  <rguenther@suse.de>
12147
12148         PR tree-optimization/99924
12149         * tree-vect-slp.c (vect_bb_partition_graph_r): Do not mark
12150         nodes w/o scalar stmts as visited.
12151
12152 2021-04-06  Alex Coplan  <alex.coplan@arm.com>
12153
12154         PR target/99748
12155         * config/arm/arm.c (arm_libcall_uses_aapcs_base): Also use base
12156         PCS for [su]fix_optab.
12157
12158 2021-04-03  Iain Sandoe  <iain@sandoe.co.uk>
12159
12160         * config/darwin.c (machopic_legitimize_pic_address): Check
12161         that the current pic register is one of the hard reg set
12162         before setting liveness.
12163
12164 2021-04-03  Iain Sandoe  <iain@sandoe.co.uk>
12165
12166         * config/darwin.c (machopic_legitimize_pic_address): Fix
12167         whitespace, remove unused code.
12168
12169 2021-04-03  Jakub Jelinek  <jakub@redhat.com>
12170
12171         PR tree-optimization/99882
12172         * gimple-ssa-store-merging.c (bswap_view_convert): Handle val with
12173         pointer type.
12174
12175 2021-04-03  Jakub Jelinek  <jakub@redhat.com>
12176
12177         PR rtl-optimization/99863
12178         * dse.c (replace_read): Drop regs_live argument.  Instead of
12179         regs_live, use store_insn->fixed_regs_live if non-NULL,
12180         otherwise punt if insns sequence clobbers or sets any hard
12181         registers.
12182
12183 2021-04-03  Jakub Jelinek  <jakub@redhat.com>
12184
12185         PR testsuite/98125
12186         * targhooks.h (default_print_patchable_function_entry_1): Declare.
12187         * targhooks.c (default_print_patchable_function_entry_1): New function,
12188         copied from default_print_patchable_function_entry with an added flags
12189         argument.
12190         (default_print_patchable_function_entry): Rewritten into a small
12191         wrapper around default_print_patchable_function_entry_1.
12192         * config/rs6000/rs6000.c (TARGET_ASM_PRINT_PATCHABLE_FUNCTION_ENTRY):
12193         Redefine.
12194         (rs6000_print_patchable_function_entry): New function.
12195
12196 2021-04-02  Eric Botcazou  <ebotcazou@adacore.com>
12197
12198         * doc/invoke.texi (fdelete-dead-exceptions): Minor tweak.
12199
12200 2021-04-01  Jason Merrill  <jason@redhat.com>
12201
12202         PR c++/98481
12203         * common.opt: Document v15 and v16.
12204
12205 2021-04-01  Richard Biener  <rguenther@suse.de>
12206
12207         PR tree-optimization/99863
12208         * gimplify.c (gimplify_init_constructor): Recompute vector
12209         constructor flags.
12210
12211 2021-04-01  Jakub Jelinek  <jakub@redhat.com>
12212
12213         * doc/extend.texi (symver attribute): Fix up syntax errors
12214         in the examples.
12215
12216 2021-04-01  Jakub Jelinek  <jakub@redhat.com>
12217
12218         PR tree-optimization/96573
12219         * gimple-ssa-store-merging.c (init_symbolic_number): Handle
12220         also pointer types.
12221
12222 2021-04-01  Richard Biener  <rguenther@suse.de>
12223
12224         PR tree-optimization/99856
12225         * tree-vect-patterns.c (vect_recog_over_widening_pattern): Promote
12226         precision to vector element precision.
12227
12228 2021-04-01  Martin Jambor  <mjambor@suse.cz>
12229
12230         PR tree-optimization/97009
12231         * tree-sra.c (access_or_its_child_written): New function.
12232         (propagate_subaccesses_from_rhs): Use it instead of a simple grp_write
12233         test.
12234
12235 2021-03-31  Jan Hubicka  <hubicka@ucw.cz>
12236
12237         PR ipa/98265
12238         * cif-code.def (USES_COMDAT_LOCAL): Make CIF_FINAL_NORMAL.
12239
12240 2021-03-31  Pat Haugen  <pthaugen@linux.ibm.com>
12241
12242         PR target/99133
12243         * config/rs6000/altivec.md (xxspltiw_v4si, xxspltiw_v4sf_inst,
12244         xxspltidp_v2df_inst, xxsplti32dx_v4si_inst, xxsplti32dx_v4sf_inst,
12245         xxblend_<mode>, xxpermx_inst, xxeval): Mark prefixed.
12246         * config/rs6000/mma.md (mma_<vvi4i4i8>, mma_<avvi4i4i8>,
12247         mma_<vvi4i4i2>, mma_<avvi4i4i2>, mma_<vvi4i4>, mma_<avvi4i4>,
12248         mma_<pvi4i2>, mma_<apvi4i2>, mma_<vvi4i4i4>, mma_<avvi4i4i4>):
12249         Likewise.
12250         * config/rs6000/rs6000.c (rs6000_final_prescan_insn): Adjust test.
12251         * config/rs6000/rs6000.md (define_attr "maybe_prefixed"): New.
12252         (define_attr "prefixed"): Update initializer.
12253
12254 2021-03-31  Jakub Jelinek  <jakub@redhat.com>
12255
12256         PR debug/99490
12257         * dwarf2out.c (debug_ranges_dwo_section): New variable.
12258         (DW_RANGES_IDX_SKELETON): Define.
12259         (struct dw_ranges): Add begin_entry and end_entry members.
12260         (DEBUG_DWO_RNGLISTS_SECTION): Define.
12261         (add_ranges_num): Adjust r initializer for addition of *_entry
12262         members.
12263         (add_ranges_by_labels): For -gsplit-dwarf and force_direct,
12264         set idx to DW_RANGES_IDX_SKELETON.
12265         (use_distinct_base_address_for_range): New function.
12266         (index_rnglists): Don't set r->idx if it is equal to
12267         DW_RANGES_IDX_SKELETON.  Initialize r->begin_entry and
12268         r->end_entry for -gsplit-dwarf if those will be needed by
12269         output_rnglists.
12270         (output_rnglists): Add DWO argument.  If true, switch to
12271         debug_ranges_dwo_section rather than debug_ranges_section.
12272         Adjust l1/l2 label indexes.  Only output the offset table when
12273         dwo is true and don't include in there the skeleton range
12274         entry if present.  For -gsplit-dwarf, skip ranges that belong
12275         to the other rnglists section.  Change return type from void
12276         to bool and return true if there are any range entries for
12277         the other section.  For dwarf_split_debug_info use
12278         DW_RLE_startx_endx, DW_RLE_startx_length and DW_RLE_base_addressx
12279         entries instead of DW_RLE_start_end, DW_RLE_start_length and
12280         DW_RLE_base_address.  Use use_distinct_base_address_for_range.
12281         (init_sections_and_labels): Initialize debug_ranges_dwo_section
12282         if -gsplit-dwarf and DWARF >= 5.  Adjust ranges_section_label
12283         and range_base_label indexes.
12284         (dwarf2out_finish): Call index_rnglists earlier before finalizing
12285         .debug_addr.  Never emit DW_AT_rnglists_base attribute.  For
12286         -gsplit-dwarf and DWARF >= 5 call output_rnglists up to twice
12287         with different dwo arguments.
12288         (dwarf2out_c_finalize): Clear debug_ranges_dwo_section.
12289
12290 2021-03-31  Richard Sandiford  <richard.sandiford@arm.com>
12291
12292         PR tree-optimization/98268
12293         * gimple-fold.c (maybe_canonicalize_mem_ref_addr): Call
12294         recompute_tree_invariant_for_addr_expr after successfully
12295         folding a TARGET_MEM_REF that occurs inside an ADDR_EXPR.
12296
12297 2021-03-31  Richard Sandiford  <richard.sandiford@arm.com>
12298
12299         PR tree-optimization/99726
12300         * tree-data-ref.c (create_intersect_range_checks_index): Bail
12301         out if there is more than one access function SCEV for the loop
12302         being versioned.
12303
12304 2021-03-31  Richard Sandiford  <richard.sandiford@arm.com>
12305
12306         PR rtl-optimization/97141
12307         PR rtl-optimization/98726
12308         * emit-rtl.c (valid_for_const_vector_p): Return true for
12309         CONST_POLY_INT_P.
12310         * rtx-vector-builder.h (rtx_vector_builder::step): Return a
12311         poly_wide_int instead of a wide_int.
12312         (rtx_vector_builder::apply_set): Take a poly_wide_int instead
12313         of a wide_int.
12314         * rtx-vector-builder.c (rtx_vector_builder::apply_set): Likewise.
12315         * config/aarch64/aarch64.c (aarch64_legitimate_constant_p): Return
12316         false for CONST_VECTORs that cannot be forced to memory.
12317         * config/aarch64/aarch64-simd.md (mov<mode>): If a CONST_VECTOR
12318         is too complex to force to memory, build it up from individual
12319         elements instead.
12320
12321 2021-03-31  Jan Hubicka  <jh@suse.cz>
12322
12323         PR lto/99447
12324         * cgraph.c (cgraph_node::release_body): Fix overactive check.
12325
12326 2021-03-31  Christophe Lyon  <christophe.lyon@linaro.org>
12327
12328         PR target/99786
12329         * config/arm/vec-common.md (mul<mode>3): Disable on iwMMXT, expect
12330         for V4HI and V2SI.
12331
12332 2021-03-31  H.J. Lu  <hjl.tools@gmail.com>
12333
12334         * config/i386/i386-expand.c (expand_set_or_cpymem_via_rep):
12335         For TARGET_PREFER_KNOWN_REP_MOVSB_STOSB, don't convert QImode
12336         to SImode.
12337         (decide_alg): For TARGET_PREFER_KNOWN_REP_MOVSB_STOSB, use
12338         "rep movsb/stosb" only for known sizes.
12339         * config/i386/i386-options.c (processor_cost_table): Use Ice
12340         Lake cost for Cannon Lake, Ice Lake, Tiger Lake, Sapphire
12341         Rapids and Alder Lake.
12342         * config/i386/i386.h (TARGET_PREFER_KNOWN_REP_MOVSB_STOSB): New.
12343         * config/i386/x86-tune-costs.h (icelake_memcpy): New.
12344         (icelake_memset): Likewise.
12345         (icelake_cost): Likewise.
12346         * config/i386/x86-tune.def (X86_TUNE_PREFER_KNOWN_REP_MOVSB_STOSB):
12347         New.
12348
12349 2021-03-31  Richard Sandiford  <richard.sandiford@arm.com>
12350
12351         PR target/98119
12352         * config/aarch64/aarch64.c
12353         (aarch64_vectorize_preferred_vector_alignment): Query the size
12354         of the provided SVE vector; do not assume that all SVE vectors
12355         have the same size.
12356
12357 2021-03-31  Jan Hubicka  <jh@suse.cz>
12358
12359         PR lto/99447
12360         * cgraph.c (cgraph_node::release_body): Remove all callers and
12361         references.
12362         * cgraphclones.c (cgraph_node::materialize_clone): Do not do it here.
12363         * cgraphunit.c (cgraph_node::expand): And here.
12364
12365 2021-03-31  Martin Liska  <mliska@suse.cz>
12366
12367         * ipa-modref.c (analyze_ssa_name_flags): Fix coding style
12368         and one negated condition.
12369
12370 2021-03-31  Jakub Jelinek  <jakub@redhat.com>
12371             Richard Sandiford  <richard.sandiford@arm.com>
12372
12373         PR target/99813
12374         * config/aarch64/aarch64.md (*add<mode>3_poly_1): Swap Uai and Uav
12375         constraints on operands[2] and similarly 0 and rk constraints
12376         on operands[1] corresponding to that.
12377
12378 2021-03-31  Jakub Jelinek  <jakub@redhat.com>
12379
12380         PR bootstrap/98860
12381         * configure.ac (HAVE_LD_BROKEN_PE_DWARF5): New AC_DEFINE if PECOFF
12382         linker doesn't support DWARF sections new in DWARF5.
12383         * config/i386/i386-options.c (ix86_option_override_internal): Default
12384         to dwarf_version 4 if HAVE_LD_BROKEN_PE_DWARF5 for TARGET_PECOFF
12385         targets.
12386         * config.in: Regenerated.
12387         * configure: Regenerated.
12388
12389 2021-03-30  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
12390
12391         PR target/99820
12392         * config/aarch64/aarch64.c (aarch64_analyze_loop_vinfo): Check for
12393         available issue_info before using it.
12394
12395 2021-03-30  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
12396
12397         PR target/99822
12398         * config/aarch64/aarch64.md (sub<mode>3_compare1_imm): Do not allow zero
12399         in operand 1.
12400
12401 2021-03-30  Xionghu Luo  <luoxhu@linux.ibm.com>
12402
12403         PR target/99718
12404         * config/rs6000/altivec.md (altivec_lvsl_reg): Change to ...
12405         (altivec_lvsl_reg_<mode>): ... this.
12406         (altivec_lvsr_reg): Change to ...
12407         (altivec_lvsr_reg_<mode>): ... this.
12408         * config/rs6000/predicates.md (vec_set_index_operand): New.
12409         * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin):
12410         Enable 32bit variable vec_insert for all TARGET_VSX.
12411         * config/rs6000/rs6000.c (rs6000_expand_vector_set_var_p9):
12412         Enable 32bit variable vec_insert for p9 and above.
12413         (rs6000_expand_vector_set_var_p8): Rename to ...
12414         (rs6000_expand_vector_set_var_p7): ... this.
12415         (rs6000_expand_vector_set): Use TARGET_VSX and adjust assert
12416         position.
12417         * config/rs6000/vector.md (vec_set<mode>): Use vec_set_index_operand.
12418         * config/rs6000/vsx.md (xl_len_r): Use gen_altivec_lvsl_reg_di and
12419         gen_altivec_lvsr_reg_di.
12420
12421 2021-03-30  H.J. Lu  <hjl.tools@gmail.com>
12422
12423         PR target/99744
12424         * config/i386/ia32intrin.h (__rdtsc): Defined as macro.
12425         (__rdtscp): Likewise.
12426
12427 2021-03-30  Tamar Christina  <tamar.christina@arm.com>
12428
12429         PR tree-optimization/99825
12430         * tree-vect-slp-patterns.c (vect_check_evenodd_blend):
12431         Reject non-mult 2 lanes.
12432
12433 2021-03-30  Richard Earnshaw  <rearnsha@arm.com>
12434
12435         PR target/99773
12436         * config/arm/arm.c (arm_file_start): Fix emission of
12437         Tag_ABI_VFP_args attribute.
12438
12439 2021-03-30  Richard Biener  <rguenther@suse.de>
12440
12441         PR tree-optimization/99824
12442         * stor-layout.c (set_min_and_max_values_for_integral_type):
12443         Assert the precision is within the bounds of
12444         WIDE_INT_MAX_PRECISION.
12445         * tree-ssa-sccvn.c (ao_ref_init_from_vn_reference): Use
12446         the outermost component ref only to lower the access size
12447         and initialize that from the access type.
12448
12449 2021-03-30  Richard Sandiford  <richard.sandiford@arm.com>
12450
12451         PR target/98136
12452         * config/aarch64/aarch64.md (mov<mode>): Pass multi-instruction
12453         CONST_INTs to aarch64_expand_mov_immediate when called after RA.
12454
12455 2021-03-30  Mihailo Stojanovic  <mihailo.stojanovic@typhoon-hil.com>
12456
12457         * config/aarch64/aarch64.md
12458         (<optab>_trunc<fcvt_target><GPI:mode>2): Set the "arch"
12459         attribute to disambiguate between SIMD and FP variants of the
12460         instruction.
12461
12462 2021-03-29  Jan Hubicka  <hubicka@ucw.cz>
12463
12464         * ipa-modref.c (merge_call_lhs_flags): Correct handling of deref.
12465         (analyze_ssa_name_flags): Fix typo in comment.
12466
12467 2021-03-29  Alex Coplan  <alex.coplan@arm.com>
12468
12469         PR target/99216
12470         * config/aarch64/aarch64-sve-builtins.cc
12471         (function_builder::add_function): Add placeholder_p argument, use
12472         placeholder decls if this is set.
12473         (function_builder::add_unique_function): Instead of conditionally adding
12474         direct overloads, unconditionally add either a direct overload or a
12475         placeholder.
12476         (function_builder::add_overloaded_function): Set placeholder_p if we're
12477         using C++ overloads. Use the obstack for string storage instead
12478         of relying on the tree nodes.
12479         (function_builder::add_overloaded_functions): Don't return early for
12480         m_direct_overloads: we need to add placeholders.
12481         * config/aarch64/aarch64-sve-builtins.h
12482         (function_builder::add_function): Add placeholder_p argument.
12483
12484 2021-03-29  Richard Biener  <rguenther@suse.de>
12485
12486         PR tree-optimization/99807
12487         * tree-vect-slp.c (vect_slp_analyze_node_operations_1): Move
12488         assert below VEC_PERM handling.
12489
12490 2021-03-29  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
12491
12492         PR target/99037
12493         * config/aarch64/aarch64-simd.md (move_lo_quad_internal_<mode>): Use
12494         aarch64_simd_or_scalar_imm_zero to match zeroes.  Remove pattern
12495         matching const_int 0.
12496         (move_lo_quad_internal_be_<mode>): Likewise.
12497         (move_lo_quad_<mode>): Update for the above.
12498         * config/aarch64/iterators.md (VQ_2E): Delete.
12499
12500 2021-03-29  Jakub Jelinek  <jakub@redhat.com>
12501
12502         PR tree-optimization/99777
12503         * fold-const.c (extract_muldiv_1): For conversions, punt on casts from
12504         types other than scalar integral types.
12505
12506 2021-03-28  David Edelsohn  <dje.gcc@gmail.com>
12507
12508         * config/rs6000/rs6000.c (rs6000_output_dwarf_dtprel): Do not add
12509         XCOFF TLS reloc decorations.
12510
12511 2021-03-28  Gerald Pfeifer  <gerald@pfeifer.com>
12512
12513         * doc/analyzer.texi (Analyzer Internals): Update link to
12514         "A Memory Model for Static Analysis of C Programs".
12515
12516 2021-03-26  David Edelsohn  <dje.gcc@gmail.com>
12517
12518         * config/rs6000/aix.h (ADJUST_FIELD_ALIGN): Call function.
12519         * config/rs6000/rs6000-protos.h (rs6000_special_adjust_field_align):
12520         Declare.
12521         * config/rs6000/rs6000.c (rs6000_special_adjust_field_align): New.
12522         (rs6000_special_round_type_align): Recursively check innermost first
12523         field.
12524
12525 2021-03-26  Jakub Jelinek  <jakub@redhat.com>
12526
12527         PR debug/99334
12528         * dwarf2out.h (struct dw_fde_node): Add rule18 member.
12529         * dwarf2cfi.c (dwarf2out_frame_debug_expr): When handling (set hfp sp)
12530         assignment with drap_reg active, queue reg save for hfp with offset 0
12531         and flush queued reg saves.  When handling a push with rule18,
12532         defer queueing reg save for hfp and just assert the offset is 0.
12533         (scan_trace): Assert that fde->rule18 is false.
12534
12535 2021-03-26  Vladimir Makarov  <vmakarov@redhat.com>
12536
12537         PR target/99766
12538         * ira-costs.c (record_reg_classes): Put case with
12539         CT_RELAXED_MEMORY adjacent to one with CT_MEMORY.
12540         * ira.c (ira_setup_alts): Ditto.
12541         * lra-constraints.c (process_alt_operands): Ditto.
12542         * recog.c (asm_operand_ok): Ditto.
12543         * reload.c (find_reloads): Ditto.
12544
12545 2021-03-26  Richard Sandiford  <richard.sandiford@arm.com>
12546
12547         * config/aarch64/aarch64-protos.h
12548         (cpu_addrcost_table::post_modify_ld3_st3): New member variable.
12549         (cpu_addrcost_table::post_modify_ld4_st4): Likewise.
12550         * config/aarch64/aarch64.c (generic_addrcost_table): Update
12551         accordingly, using the same costs as for post_modify.
12552         (exynosm1_addrcost_table, xgene1_addrcost_table): Likewise.
12553         (thunderx2t99_addrcost_table, thunderx3t110_addrcost_table):
12554         (tsv110_addrcost_table, qdf24xx_addrcost_table): Likewise.
12555         (a64fx_addrcost_table): Likewise.
12556         (neoversev1_addrcost_table): New.
12557         (neoversev1_tunings): Use neoversev1_addrcost_table.
12558         (aarch64_address_cost): Use the new post_modify costs for CImode
12559         and XImode.
12560
12561 2021-03-26  Richard Sandiford  <richard.sandiford@arm.com>
12562
12563         * config/aarch64/aarch64.opt
12564         (-param=aarch64-loop-vect-issue-rate-niters=): New parameter.
12565         * doc/invoke.texi: Document it.
12566         * config/aarch64/aarch64-protos.h (aarch64_base_vec_issue_info)
12567         (aarch64_scalar_vec_issue_info, aarch64_simd_vec_issue_info)
12568         (aarch64_advsimd_vec_issue_info, aarch64_sve_vec_issue_info)
12569         (aarch64_vec_issue_info): New structures.
12570         (cpu_vector_cost): Write comments above the variables rather
12571         than to the side.
12572         (cpu_vector_cost::issue_info): New member variable.
12573         * config/aarch64/aarch64.c: Include gimple-pretty-print.h
12574         and tree-ssa-loop-niter.h.
12575         (generic_vector_cost, a64fx_vector_cost, qdf24xx_vector_cost)
12576         (thunderx_vector_cost, tsv110_vector_cost, cortexa57_vector_cost)
12577         (exynosm1_vector_cost, xgene1_vector_cost, thunderx2t99_vector_cost)
12578         (thunderx3t110_vector_cost): Initialize issue_info to null.
12579         (neoversev1_scalar_issue_info, neoversev1_advsimd_issue_info)
12580         (neoversev1_sve_issue_info, neoversev1_vec_issue_info): New structures.
12581         (neoversev1_vector_cost): Use them.
12582         (aarch64_vec_op_count, aarch64_sve_op_count): New structures.
12583         (aarch64_vector_costs::saw_sve_only_op): New member variable.
12584         (aarch64_vector_costs::num_vector_iterations): Likewise.
12585         (aarch64_vector_costs::scalar_ops): Likewise.
12586         (aarch64_vector_costs::advsimd_ops): Likewise.
12587         (aarch64_vector_costs::sve_ops): Likewise.
12588         (aarch64_vector_costs::seen_loads): Likewise.
12589         (aarch64_simd_vec_costs_for_flags): New function.
12590         (aarch64_analyze_loop_vinfo): Initialize num_vector_iterations.
12591         Count the number of predicate operations required by SVE WHILE
12592         instructions.
12593         (aarch64_comparison_type, aarch64_multiply_add_p): New functions.
12594         (aarch64_sve_only_stmt_p, aarch64_in_loop_reduction_latency): Likewise.
12595         (aarch64_count_ops): Likewise.
12596         (aarch64_add_stmt_cost): Record whether see an SVE operation
12597         that cannot currently be implementing using Advanced SIMD.
12598         Record issue information about the scalar, Advanced SIMD
12599         and (where relevant) SVE versions of a loop.
12600         (aarch64_vec_op_count::dump): New function.
12601         (aarch64_sve_op_count::dump): Likewise.
12602         (aarch64_estimate_min_cycles_per_iter): Likewise.
12603         (aarch64_adjust_body_cost): If issue information is available,
12604         try to compare the issue rates of the various loop implementations
12605         and increase or decrease the vector body cost accordingly.
12606
12607 2021-03-26  Richard Sandiford  <richard.sandiford@arm.com>
12608
12609         * config/aarch64/aarch64.c (aarch64_detect_vector_stmt_subtype):
12610         Assume a zero cost for induction phis.
12611
12612 2021-03-26  Richard Sandiford  <richard.sandiford@arm.com>
12613
12614         * config/aarch64/aarch64.c (aarch64_embedded_comparison_type): New
12615         function.
12616         (aarch64_adjust_stmt_cost): Add the costs of embedded scalar and
12617         vector comparisons.
12618
12619 2021-03-26  Richard Sandiford  <richard.sandiford@arm.com>
12620
12621         * config/aarch64/aarch64.c (aarch64_detect_scalar_stmt_subtype):
12622         New function.
12623         (aarch64_add_stmt_cost): Call it.
12624
12625 2021-03-26  Richard Sandiford  <richard.sandiford@arm.com>
12626
12627         * config/aarch64/aarch64-tuning-flags.def (matched_vector_throughput):
12628         New tuning parameter.
12629         * config/aarch64/aarch64.c (neoversev1_tunings): Use it.
12630         (aarch64_estimated_sve_vq): New function.
12631         (aarch64_vector_costs::analyzed_vinfo): New member variable.
12632         (aarch64_vector_costs::is_loop): Likewise.
12633         (aarch64_vector_costs::unrolled_advsimd_niters): Likewise.
12634         (aarch64_vector_costs::unrolled_advsimd_stmts): Likewise.
12635         (aarch64_record_potential_advsimd_unrolling): New function.
12636         (aarch64_analyze_loop_vinfo, aarch64_analyze_bb_vinfo): Likewise.
12637         (aarch64_add_stmt_cost): Call aarch64_analyze_loop_vinfo or
12638         aarch64_analyze_bb_vinfo on the first use of a costs structure.
12639         Detect whether we're vectorizing a loop for SVE that might be
12640         completely unrolled if it used Advanced SIMD instead.
12641         (aarch64_adjust_body_cost_for_latency): New function.
12642         (aarch64_finish_cost): Call it.
12643
12644 2021-03-26  Richard Sandiford  <richard.sandiford@arm.com>
12645
12646         * config/aarch64/aarch64.c (aarch64_vector_costs): New structure.
12647         (aarch64_init_cost): New function.
12648         (aarch64_add_stmt_cost): Use aarch64_vector_costs instead of
12649         the default unsigned[3].
12650         (aarch64_finish_cost, aarch64_destroy_cost_data): New functions.
12651         (TARGET_VECTORIZE_INIT_COST): Override.
12652         (TARGET_VECTORIZE_FINISH_COST): Likewise.
12653         (TARGET_VECTORIZE_DESTROY_COST_DATA): Likewise.
12654
12655 2021-03-26  Richard Sandiford  <richard.sandiford@arm.com>
12656
12657         * config/aarch64/aarch64.c (neoversev1_advsimd_vector_cost)
12658         (neoversev1_sve_vector_cost): New cost structures.
12659         (neoversev1_vector_cost): Likewise.
12660         (neoversev1_tunings): Use them.  Enable use_new_vector_costs.
12661
12662 2021-03-26  Richard Sandiford  <richard.sandiford@arm.com>
12663
12664         * config/aarch64/aarch64-protos.h
12665         (sve_vec_cost::scatter_store_elt_cost): New member variable.
12666         * config/aarch64/aarch64.c (generic_sve_vector_cost): Update
12667         accordingly, taking the cost from the cost of a scalar_store.
12668         (a64fx_sve_vector_cost): Likewise.
12669         (aarch64_detect_vector_stmt_subtype): Detect scatter stores.
12670
12671 2021-03-26  Richard Sandiford  <richard.sandiford@arm.com>
12672
12673         * config/aarch64/aarch64-protos.h
12674         (simd_vec_cost::store_elt_extra_cost): New member variable.
12675         * config/aarch64/aarch64.c (generic_advsimd_vector_cost): Update
12676         accordingly, using the vec_to_scalar cost for the new field.
12677         (generic_sve_vector_cost, a64fx_advsimd_vector_cost): Likewise.
12678         (a64fx_sve_vector_cost, qdf24xx_advsimd_vector_cost): Likewise.
12679         (thunderx_advsimd_vector_cost, tsv110_advsimd_vector_cost): Likewise.
12680         (cortexa57_advsimd_vector_cost, exynosm1_advsimd_vector_cost)
12681         (xgene1_advsimd_vector_cost, thunderx2t99_advsimd_vector_cost)
12682         (thunderx3t110_advsimd_vector_cost): Likewise.
12683         (aarch64_detect_vector_stmt_subtype): Detect single-element stores.
12684
12685 2021-03-26  Richard Sandiford  <richard.sandiford@arm.com>
12686
12687         * config/aarch64/aarch64-protos.h (simd_vec_cost::ld2_st2_permute_cost)
12688         (simd_vec_cost::ld3_st3_permute_cost): New member variables.
12689         (simd_vec_cost::ld4_st4_permute_cost): Likewise.
12690         * config/aarch64/aarch64.c (generic_advsimd_vector_cost): Update
12691         accordingly, using zero for the new costs.
12692         (generic_sve_vector_cost, a64fx_advsimd_vector_cost): Likewise.
12693         (a64fx_sve_vector_cost, qdf24xx_advsimd_vector_cost): Likewise.
12694         (thunderx_advsimd_vector_cost, tsv110_advsimd_vector_cost): Likewise.
12695         (cortexa57_advsimd_vector_cost, exynosm1_advsimd_vector_cost)
12696         (xgene1_advsimd_vector_cost, thunderx2t99_advsimd_vector_cost)
12697         (thunderx3t110_advsimd_vector_cost): Likewise.
12698         (aarch64_ld234_st234_vectors): New function.
12699         (aarch64_adjust_stmt_cost): Likewise.
12700         (aarch64_add_stmt_cost): Call aarch64_adjust_stmt_cost if using
12701         the new vector costs.
12702
12703 2021-03-26  Richard Sandiford  <richard.sandiford@arm.com>
12704
12705         * config/aarch64/aarch64-protos.h (sve_vec_cost): Turn into a
12706         derived class of simd_vec_cost.  Add information about CLAST[AB]
12707         and FADDA instructions.
12708         * config/aarch64/aarch64.c (generic_sve_vector_cost): Update
12709         accordingly, using the vec_to_scalar costs for the new fields.
12710         (a64fx_sve_vector_cost): Likewise.
12711         (aarch64_reduc_type): New function.
12712         (aarch64_sve_in_loop_reduction_latency): Likewise.
12713         (aarch64_detect_vector_stmt_subtype): Take a vinfo parameter.
12714         Use aarch64_sve_in_loop_reduction_latency to handle SVE reductions
12715         that occur in the loop body.
12716         (aarch64_add_stmt_cost): Update call accordingly.
12717
12718 2021-03-26  Richard Sandiford  <richard.sandiford@arm.com>
12719
12720         * config/aarch64/aarch64-tuning-flags.def (use_new_vector_costs):
12721         New tuning flag.
12722         * config/aarch64/aarch64-protos.h (simd_vec_cost): Put comments
12723         above the fields rather than to the right.
12724         (simd_vec_cost::reduc_i8_cost): New member variable.
12725         (simd_vec_cost::reduc_i16_cost): Likewise.
12726         (simd_vec_cost::reduc_i32_cost): Likewise.
12727         (simd_vec_cost::reduc_i64_cost): Likewise.
12728         (simd_vec_cost::reduc_f16_cost): Likewise.
12729         (simd_vec_cost::reduc_f32_cost): Likewise.
12730         (simd_vec_cost::reduc_f64_cost): Likewise.
12731         * config/aarch64/aarch64.c (generic_advsimd_vector_cost): Update
12732         accordingly, using the vec_to_scalar_cost for the new fields.
12733         (generic_sve_vector_cost, a64fx_advsimd_vector_cost): Likewise.
12734         (a64fx_sve_vector_cost, qdf24xx_advsimd_vector_cost): Likewise.
12735         (thunderx_advsimd_vector_cost, tsv110_advsimd_vector_cost): Likewise.
12736         (cortexa57_advsimd_vector_cost, exynosm1_advsimd_vector_cost)
12737         (xgene1_advsimd_vector_cost, thunderx2t99_advsimd_vector_cost)
12738         (thunderx3t110_advsimd_vector_cost): Likewise.
12739         (aarch64_use_new_vector_costs_p): New function.
12740         (aarch64_simd_vec_costs): New function, split out from...
12741         (aarch64_builtin_vectorization_cost): ...here.
12742         (aarch64_is_reduction): New function.
12743         (aarch64_detect_vector_stmt_subtype): Likewise.
12744         (aarch64_add_stmt_cost): Call aarch64_detect_vector_stmt_subtype if
12745         using the new vector costs.
12746
12747 2021-03-26  Iain Buclaw  <ibuclaw@gdcproject.org>
12748
12749         PR ipa/99466
12750         * tree-emutls.c (get_emutls_init_templ_addr): Mark initializer of weak
12751         TLS declarations as public.
12752
12753 2021-03-26  Iain Buclaw  <ibuclaw@gdcproject.org>
12754
12755         * config/aarch64/aarch64-d.c (IN_TARGET_CODE): Define.
12756         * config/arm/arm-d.c (IN_TARGET_CODE): Likewise.
12757         * config/i386/i386-d.c (IN_TARGET_CODE): Likewise.
12758         * config/mips/mips-d.c (IN_TARGET_CODE): Likewise.
12759         * config/pa/pa-d.c (IN_TARGET_CODE): Likewise.
12760         * config/riscv/riscv-d.c (IN_TARGET_CODE): Likewise.
12761         * config/rs6000/rs6000-d.c (IN_TARGET_CODE): Likewise.
12762         * config/s390/s390-d.c (IN_TARGET_CODE): Likewise.
12763         * config/sparc/sparc-d.c (IN_TARGET_CODE): Likewise.
12764
12765 2021-03-26  Iain Buclaw  <ibuclaw@gdcproject.org>
12766
12767         PR d/91595
12768         * config.gcc (*-*-cygwin*): Add winnt-d.o
12769         (*-*-mingw*): Likewise.
12770         * config/i386/cygwin.h (EXTRA_TARGET_D_OS_VERSIONS): New macro.
12771         * config/i386/mingw32.h (EXTRA_TARGET_D_OS_VERSIONS): Likewise.
12772         * config/i386/t-cygming: Add winnt-d.o.
12773         * config/i386/winnt-d.c: New file.
12774
12775 2021-03-26  Iain Buclaw  <ibuclaw@gdcproject.org>
12776
12777         * config/freebsd-d.c: Include memmodel.h.
12778
12779 2021-03-26  Iain Buclaw  <ibuclaw@gdcproject.org>
12780
12781         PR d/99691
12782         * config.gcc (*-*-openbsd*): Add openbsd-d.o.
12783         * config/t-openbsd: Add openbsd-d.o.
12784         * config/openbsd-d.c: New file.
12785
12786 2021-03-25  Stam Markianos-Wright  <stam.markianos-wright@arm.com>
12787
12788         PR tree-optimization/96974
12789         * tree-vect-stmts.c (vect_get_vector_types_for_stmt): Replace assert
12790         with graceful exit.
12791
12792 2021-03-25  H.J. Lu  <hjl.tools@gmail.com>
12793
12794         Revert:
12795         2021-03-25  H.J. Lu  <hjl.tools@gmail.com>
12796
12797         PR target/98209
12798         PR target/99744
12799         * config/i386/i386.c (ix86_can_inline_p): Don't check ISA for
12800         always_inline in system headers.
12801
12802 2021-03-25  Kewen Lin  <linkw@linux.ibm.com>
12803
12804         * tree-vect-loop.c (vect_model_reduction_cost): Init inside_cost.
12805
12806 2021-03-25  Jakub Jelinek  <jakub@redhat.com>
12807
12808         PR c++/99565
12809         * tree-core.h (enum operand_equal_flag): Add OEP_ADDRESS_OF_SAME_FIELD.
12810         * fold-const.c (operand_compare::operand_equal_p): Don't compare
12811         field offsets if OEP_ADDRESS_OF_SAME_FIELD.
12812
12813 2021-03-25  H.J. Lu  <hjl.tools@gmail.com>
12814
12815         PR target/98209
12816         PR target/99744
12817         * config/i386/i386.c (ix86_can_inline_p): Don't check ISA for
12818         always_inline in system headers.
12819
12820 2021-03-25  Richard Biener  <rguenther@suse.de>
12821
12822         PR tree-optimization/99746
12823         * tree-vect-slp-patterns.c (complex_pattern::build): Do not mark
12824         the scalar stmt as patterned.  Instead set up required things
12825         manually.
12826
12827 2021-03-25  Xionghu Luo  <luoxhu@linux.ibm.com>
12828
12829         * config/rs6000/rs6000.c (power8_costs): Change l2 cache
12830         from 256 to 512.
12831
12832 2021-03-24  Martin Liska  <mliska@suse.cz>
12833
12834         PR target/99753
12835         * common/config/i386/i386-common.c (ARRAY_SIZE): Fix off-by-one
12836         error.
12837         * config/i386/i386-options.c (ix86_option_override_internal):
12838         Add run-time assert.
12839
12840 2021-03-24  Martin Jambor  <mjambor@suse.cz>
12841
12842         PR ipa/99122
12843         * ipa-cp.c (initialize_node_lattices): Mark as bottom all
12844         parameters with unknown type.
12845         (ipacp_value_safe_for_type): New function.
12846         (propagate_vals_across_arith_jfunc): Verify that the constant type
12847         can be used for a type of the formal parameter.
12848         (propagate_vals_across_ancestor): Likewise.
12849         (propagate_scalar_across_jump_function): Likewise.  Pass the type
12850         also to propagate_vals_across_ancestor.
12851
12852 2021-03-24  Christophe Lyon  <christophe.lyon@linaro.org>
12853
12854         PR target/99727
12855         * config/arm/mve.md (movmisalign<mode>_mve_store): Use Ux
12856         constraint.
12857         (movmisalign<mode>_mve_load): Likewise.
12858
12859 2021-03-24  Jakub Jelinek  <jakub@redhat.com>
12860
12861         PR target/99724
12862         * config/arm/vec-common.md (one_cmpl<mode>2, neg<mode>2,
12863         movmisalign<mode>): Disable expanders for TARGET_REALLY_IWMMXT.
12864
12865 2021-03-24  Alexandre Oliva  <oliva@adacore.com>
12866
12867         * doc/sourcebuild.texi (sysconf): New effective target.
12868
12869 2021-03-24  Alexandre Oliva  <oliva@adacore.com>
12870
12871         * config/i386/predicates.md (reg_or_const_vec_operand): New.
12872         * config/i386/sse.md (ssse3_pshufbv8qi3): Add an expander for
12873         the now *-prefixed insn_and_split, turn the splitter const vec
12874         into an input for the insn, making it an ignored immediate for
12875         non-split cases, and loaded into the scratch register
12876         otherwise.
12877
12878 2021-03-23  Vladimir N. Makarov  <vmakarov@redhat.com>
12879
12880         PR target/99581
12881         * config/aarch64/constraints.md (Utq, UOb, UOh, UOw, UOd, UOty):
12882         Use define_relaxed_memory_constraint for them.
12883
12884 2021-03-23  Iain Sandoe  <iain@sandoe.co.uk>
12885
12886         PR target/99733
12887         * config/host-darwin.c (darwin_gt_pch_use_address): Add a
12888         colon to the diagnostic message.
12889
12890 2021-03-23  Ilya Leoshkevich  <iii@linux.ibm.com>
12891
12892         * fwprop.c (fwprop_propagation::fwprop_propagation): Look at
12893         set_info's uses.
12894         (try_fwprop_subst_note): Use set_info instead of insn_info.
12895         (try_fwprop_subst_pattern): Likewise.
12896         (try_fwprop_subst_notes): Likewise.
12897         (try_fwprop_subst): Likewise.
12898         (forward_propagate_subreg): Likewise.
12899         (forward_propagate_and_simplify): Likewise.
12900         (forward_propagate_into): Likewise.
12901         * rtl-ssa/accesses.h (set_info::single_nondebug_use) New
12902         method.
12903         (set_info::single_nondebug_insn_use): Likewise.
12904         (set_info::single_phi_use): Likewise.
12905         * rtl-ssa/member-fns.inl (set_info::single_nondebug_use) New
12906         method.
12907         (set_info::single_nondebug_insn_use): Likewise.
12908         (set_info::single_phi_use): Likewise.
12909
12910 2021-03-23  Christophe Lyon  <christophe.lyon@linaro.org>
12911
12912         * doc/sourcebuild.texi (arm_dsp_ok, arm_dsp): Document.
12913
12914 2021-03-23  Jakub Jelinek  <jakub@redhat.com>
12915
12916         PR target/99540
12917         * config/aarch64/aarch64.c (aarch64_add_offset): Tell
12918         expand_mult to perform an unsigned rather than a signed
12919         multiplication.
12920
12921 2021-03-23  H.J. Lu  <hjl.tools@gmail.com>
12922
12923         PR target/99704
12924         * config/i386/cpuid.h (__cpuid): Add __volatile__.
12925         (__cpuid_count): Likewise.
12926
12927 2021-03-23  Richard Biener  <rguenther@suse.de>
12928
12929         PR tree-optimization/99721
12930         * tree-vect-slp.c (vect_slp_analyze_node_operations):
12931         Make sure we can schedule the node.
12932
12933 2021-03-23  Marcus Comstedt  <marcus@mc.pp.se>
12934
12935         * config/riscv/riscv.c (riscv_subword): Take endianness into
12936         account when calculating the byte offset.
12937
12938 2021-03-23  Marcus Comstedt  <marcus@mc.pp.se>
12939
12940         * config/riscv/predicates.md (subreg_lowpart_operator): New predicate
12941         * config/riscv/riscv.md (*addsi3_extended2, *subsi3_extended2)
12942         (*negsi2_extended2, *mulsi3_extended2, *<optab>si3_mask)
12943         (*<optab>si3_mask_1, *<optab>di3_mask, *<optab>di3_mask_1)
12944         (*<optab>si3_extend_mask, *<optab>si3_extend_mask_1): Use
12945         new predicate "subreg_lowpart_operator"
12946
12947 2021-03-23  Marcus Comstedt  <marcus@mc.pp.se>
12948
12949         * config/riscv/riscv.c (riscv_swap_instruction): New function
12950         to byteswap an SImode rtx containing an instruction.
12951         (riscv_trampoline_init): Byteswap the generated instructions
12952         when needed.
12953
12954 2021-03-23  Marcus Comstedt  <marcus@mc.pp.se>
12955
12956         * common/config/riscv/riscv-common.c
12957         (TARGET_DEFAULT_TARGET_FLAGS): Set default endianness.
12958         * config.gcc (riscv32be-*, riscv64be-*): Set
12959         TARGET_BIG_ENDIAN_DEFAULT to 1.
12960         * config/riscv/elf.h (LINK_SPEC): Change -melf* value
12961         depending on default endianness.
12962         * config/riscv/freebsd.h (LINK_SPEC): Likewise.
12963         * config/riscv/linux.h (LINK_SPEC): Likewise.
12964         * config/riscv/riscv.c (TARGET_DEFAULT_TARGET_FLAGS): Set
12965         default endianness.
12966         * config/riscv/riscv.h (DEFAULT_ENDIAN_SPEC): New macro.
12967
12968 2021-03-23  Marcus Comstedt  <marcus@mc.pp.se>
12969
12970         * config/riscv/elf.h (LINK_SPEC): Pass linker endianness flag.
12971         * config/riscv/freebsd.h (LINK_SPEC): Likewise.
12972         * config/riscv/linux.h (LINK_SPEC): Likewise.
12973         * config/riscv/riscv.h (ASM_SPEC): Pass -mbig-endian and
12974         -mlittle-endian.
12975         (BYTES_BIG_ENDIAN): Handle big endian.
12976         (WORDS_BIG_ENDIAN): Define to BYTES_BIG_ENDIAN.
12977         * config/riscv/riscv.opt (-mbig-endian, -mlittle-endian): New
12978         options.
12979         * doc/invoke.texi (-mbig-endian, -mlittle-endian): Document.
12980
12981 2021-03-23  Stefan Schulze Frielinghaus  <stefansf@linux.ibm.com>
12982
12983         * regcprop.c (find_oldest_value_reg): Ask target whether
12984           different mode is fine for replacement register.
12985
12986 2021-03-23  Aldy Hernandez  <aldyh@redhat.com>
12987
12988         PR tree-optimization/99296
12989         * value-range.cc (irange::irange_set_1bit_anti_range): New.
12990         (irange::irange_set_anti_range): Call irange_set_1bit_anti_range
12991         * value-range.h (irange::irange_set_1bit_anti_range): New.
12992
12993 2021-03-22  Vladimir N. Makarov  <vmakarov@redhat.com>
12994
12995         PR target/99581
12996         * config/aarch64/constraints.md (UtQ): Use
12997         define_relaxed_memory_constraint for it.
12998         * doc/md.texi (define_relaxed_memory_constraint): Describe it.
12999         * genoutput.c (main): Process DEFINE_RELAXED_MEMORY_CONSTRAINT.
13000         * genpreds.c (constraint_data): Add bitfield is_relaxed_memory.
13001         (have_relaxed_memory_constraints): New static var.
13002         (relaxed_memory_start, relaxed_memory_end): Ditto.
13003         (add_constraint): Add arg is_relaxed_memory.  Check name for
13004         relaxed memory.  Set up is_relaxed_memory in constraint_data and
13005         have_relaxed_memory_constraints.  Adjust calls.
13006         (choose_enum_order): Process relaxed memory.
13007         (write_tm_preds_h): Ditto.
13008         (main): Process DEFINE_RELAXED_MEMORY_CONSTRAINT.
13009         * gensupport.c (process_rtx): Process DEFINE_RELAXED_MEMORY_CONSTRAINT.
13010         * ira-costs.c (record_reg_classes): Process CT_RELAXED_MEMORY.
13011         * ira-lives.c (single_reg_class): Use
13012         insn_extra_relaxed_memory_constraint.
13013         * ira.c (ira_setup_alts): CT_RELAXED_MEMORY.
13014         * lra-constraints.c (valid_address_p): Use
13015         insn_extra_relaxed_memory_constraint instead of other memory
13016         constraints.
13017         (process_alt_operands): Process CT_RELAXED_MEMORY.
13018         (curr_insn_transform): Use insn_extra_relaxed_memory_constraint.
13019         * recog.c (asm_operand_ok, preprocess_constraints): Process
13020         CT_RELAXED_MEMORY.
13021         * reload.c (find_reloads): Ditto.
13022         * rtl.def (DEFINE_RELAXED_MEMORY_CONSTRAINT): New.
13023         * stmt.c (parse_input_constraint): Use
13024         insn_extra_relaxed_memory_constraint.
13025
13026 2021-03-22  Segher Boessenkool  <segher@kernel.crashing.org>
13027
13028         PR target/97926
13029         * ubsan.c (ubsan_instrument_float_cast): Don't test for unordered if
13030         there are no NaNs.
13031
13032 2021-03-22  Alex Coplan  <alex.coplan@arm.com>
13033
13034         PR target/97252
13035         * config/arm/arm-protos.h (neon_make_constant): Add generate
13036         argument to guard emitting insns, default to true.
13037         * config/arm/arm.c (arm_legitimate_constant_p_1): Reject
13038         CONST_VECTORs which neon_make_constant can't handle.
13039         (neon_vdup_constant): Add generate argument, avoid emitting
13040         insns if it's not set.
13041         (neon_make_constant): Plumb new generate argument through.
13042         * config/arm/constraints.md (Ui): New. Use it...
13043         * config/arm/mve.md (*mve_mov<mode>): ... here.
13044         * config/arm/vec-common.md (movv8hf): Use neon_make_constant to
13045         synthesize constants.
13046
13047 2021-03-22  Richard Biener  <rguenther@suse.de>
13048
13049         * debug.h: Add deprecation warning.
13050
13051 2021-03-22  Richard Biener  <rguenther@suse.de>
13052
13053         PR tree-optimization/99694
13054         * tree-ssa-sccvn.c (visit_phi): Ignore edges with the
13055         PHI result.
13056
13057 2021-03-22  Kito Cheng  <kito.cheng@sifive.com>
13058
13059         PR target/99702
13060         * config/riscv/riscv.c (riscv_expand_block_move): Get RTL value
13061         after type checking.
13062
13063 2021-03-22  Jakub Jelinek  <jakub@redhat.com>
13064
13065         PR debug/99562
13066         PR debug/66728
13067         * dwarf2out.c (get_full_len): Use get_precision rather than
13068         min_precision.
13069         (add_const_value_attribute): Make sure add_AT_wide argument has
13070         precision prec rather than some very wide one.
13071
13072 2021-03-22  Kewen Lin  <linkw@linux.ibm.com>
13073
13074         * config/rs6000/rs6000.md (*rotldi3_insert_sf,
13075         *mov<SFDF:mode><SFDF2:mode>cc_p9, floatsi<mode>2_lfiwax,
13076         floatsi<mode>2_lfiwax_mem, floatunssi<mode>2_lfiwzx,
13077         floatunssi<mode>2_lfiwzx_mem, *floatsidf2_internal,
13078         *floatunssidf2_internal, fix_trunc<mode>si2_stfiwx,
13079         fix_trunc<mode>si2_internal, fixuns_trunc<mode>si2_stfiwx,
13080         *round32<mode>2_fprs, *roundu32<mode>2_fprs,
13081         *fix_trunc<mode>si2_internal): Fix empty split condition.
13082         * config/rs6000/vsx.md (*vsx_le_undo_permute_<mode>,
13083         vsx_reduc_<VEC_reduc_name>_v2df, vsx_reduc_<VEC_reduc_name>_v4sf,
13084         *vsx_reduc_<VEC_reduc_name>_v2df_scalar,
13085         *vsx_reduc_<VEC_reduc_name>_v4sf_scalar): Likewise.
13086
13087 2021-03-22  Xionghu Luo  <luoxhu@linux.ibm.com>
13088
13089         PR target/98914
13090         * config/rs6000/rs6000.c (rs6000_expand_vector_set_var_p9):
13091         Convert idx to DImode.
13092         (rs6000_expand_vector_set_var_p8): Likewise.
13093
13094 2021-03-21  Jakub Jelinek  <jakub@redhat.com>
13095
13096         PR debug/99388
13097         * dwarf2out.c (insert_float): Change return type from void to
13098         unsigned, handle GET_MODE_SIZE (mode) == 2 and return element size.
13099         (mem_loc_descriptor, loc_descriptor, add_const_value_attribute):
13100         Adjust callers.
13101
13102 2021-03-20  H.J. Lu  <hjl.tools@gmail.com>
13103
13104         PR target/99679
13105         * config/i386/i386.c (construct_container): Check cfun != NULL
13106         before accessing silent_p.
13107
13108 2021-03-20  Ahamed Husni  <ahamedhusni73@gmail.com>
13109
13110         * asan.c: Fix typos in comments.
13111
13112 2021-03-20  Vladimir N. Makarov  <vmakarov@redhat.com>
13113
13114         PR rtl-optimization/99680
13115         * lra-constraints.c (skip_contraint_modifiers): Rename to skip_constraint_modifiers.
13116         (process_address_1): Check empty constraint before using
13117         CONSTRAINT_LEN.
13118
13119 2021-03-19  Pat Haugen  <pthaugen@linux.ibm.com>
13120
13121         * config/rs6000/rs6000.c (power10_cost): New.
13122         (rs6000_option_override_internal): Set Power10 costs.
13123         (rs6000_issue_rate): Set Power10 issue rate.
13124         * config/rs6000/power10.md: Rewrite for Power10.
13125
13126 2021-03-19  Vladimir N. Makarov  <vmakarov@redhat.com>
13127
13128         PR target/99663
13129         * lra-constraints.c (process_address_1): Don't use unknown
13130         constraint for address constraint.
13131
13132 2021-03-19  Iain Sandoe  <iain@sandoe.co.uk>
13133
13134         PR target/99661
13135         * config.gcc (powerpc-*-darwin8): Delete the reference to
13136         the now removed darwin8.h.
13137
13138 2021-03-19  Olivier Hainque  <hainque@adacore.com>
13139
13140         PR target/99660
13141         * config/vxworksae.h (VX_CPU_PREFIX): Define.
13142
13143 2021-03-19  John David Anglin  <danglin@gcc.gnu.org>
13144
13145         * config/pa/pa.c (import_milli): Use memcpy instead of strncpy.
13146
13147 2021-03-19  Tamar Christina  <tamar.christina@arm.com>
13148
13149         PR tree-optimization/99656
13150         * tree-vect-slp-patterns.c (linear_loads_p,
13151         complex_add_pattern::matches, is_eq_or_top,
13152         vect_validate_multiplication, complex_mul_pattern::matches,
13153         complex_fms_pattern::matches): Remove complex_perm_kinds_t.
13154         * tree-vectorizer.h: (complex_load_perm_t): Removed.
13155         (slp_tree_to_load_perm_map_t): Use complex_perm_kinds_t instead of
13156         complex_load_perm_t.
13157
13158 2021-03-19  H.J. Lu  <hjl.tools@gmail.com>
13159
13160         PR target/99652
13161         * config/i386/i386-options.c (ix86_init_machine_status): Set
13162         silent_p to true.
13163         * config/i386/i386.c (init_cumulative_args): Set silent_p to
13164         false.
13165         (construct_container): Return early for return and argument
13166         errors if silent_p is true.
13167         * config/i386/i386.h (machine_function): Add silent_p.
13168
13169 2021-03-19  Jakub Jelinek  <jakub@redhat.com>
13170
13171         PR target/99593
13172         * config/arm/constraints.md (Ds): New constraint.
13173         * config/arm/vec-common.md (mve_vshlq_<supf><mode>): Use w,Ds
13174         constraint instead of w,Dm.
13175
13176 2021-03-19  Andrew Stubbs  <ams@codesourcery.com>
13177
13178         * config/gcn/gcn.c (gcn_parse_amdgpu_hsa_kernel_attribute): Fix quotes
13179         in error message.
13180
13181 2021-03-19  Eric Botcazou  <ebotcazou@adacore.com>
13182
13183         PR middle-end/99641
13184         * fold-const.c (native_encode_initializer) <CONSTRUCTOR>: For an
13185         array type, do the computation of the current position in sizetype.
13186
13187 2021-03-18  Vladimir N. Makarov  <vmakarov@redhat.com>
13188
13189         PR target/99422
13190         * lra-constraints.c (process_address_1): Use lookup_constraint
13191         only for a single constraint.
13192
13193 2021-03-18  Martin Sebor  <msebor@redhat.com>
13194
13195         PR middle-end/99502
13196         * gimple-array-bounds.cc (inbounds_vbase_memaccess_p): Rename...
13197         (inbounds_memaccess_p): ...to this.  Check the ending offset of
13198         the accessed member.
13199
13200 2021-03-18  Andrew Stubbs  <ams@codesourcery.com>
13201
13202         * config/gcn/gcn.c (gcn_parse_amdgpu_hsa_kernel_attribute): Add %< and
13203           %> quote markers to error messages.
13204         (gcn_goacc_validate_dims): Likewise.
13205         (gcn_conditional_register_usage): Remove exclaimation mark from error
13206         message.
13207         (gcn_vectorize_vec_perm_const): Ensure perm is fully uninitialized.
13208
13209 2021-03-18  Jan Hubicka  <hubicka@ucw.cz>
13210
13211         * config/i386/x86-tune-costs.h (struct processor_costs): Fix costs of
13212         integer divides1.
13213
13214 2021-03-18  Sinan Lin  <sinan@isrc.iscas.ac.cn>
13215             Kito Cheng  <kito.cheng@sifive.com>
13216
13217         * config/riscv/riscv.c (riscv_block_move_straight): Change type
13218         to unsigned HOST_WIDE_INT for parameter and local variable with
13219         HOST_WIDE_INT type.
13220         (riscv_adjust_block_mem): Ditto.
13221         (riscv_block_move_loop): Ditto.
13222         (riscv_expand_block_move): Ditto.
13223
13224 2021-03-18  Nick Clifton  <nickc@redhat.com>
13225
13226         * config/v850/v850.c (construct_restore_jr): Increase static
13227          buffer size.
13228         (construct_save_jarl): Likewise.
13229         * config/v850/v850.h (DWARF2_DEBUGGING_INFO): Define.
13230
13231 2021-03-18  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
13232
13233         * config/aarch64/aarch64.c (aarch64_adjust_generic_arch_tuning): Define.
13234         (aarch64_override_options_internal): Use it.
13235         (generic_tunings): Add AARCH64_EXTRA_TUNE_CSE_SVE_VL_CONSTANTS to
13236         tune_flags.
13237
13238 2021-03-17  Sandra Loosemore  <sandra@codesourcery.com>
13239
13240         * config/nios2/nios2.c (nios2_custom_check_insns): Clean up
13241         error message format issues.
13242         (nios2_option_override): Likewise.
13243         (nios2_expand_fpu_builtin): Likewise.
13244         (nios2_init_custom_builtins): Adjust to avoid bogus strncpy
13245         truncation warning.
13246         (nios2_expand_custom_builtin): More error message format fixes.
13247         (nios2_expand_rdwrctl_builtin): Likewise.
13248         (nios2_expand_rdprs_builtin): Likewise.
13249         (nios2_expand_eni_builtin): Likewise.
13250         (nios2_expand_builtin): Likewise.
13251         (nios2_register_custom_code): Likewise.
13252         (nios2_valid_target_attribute_rec): Likewise.
13253         (nios2_add_insn_asm): Fix uninitialized variable warning.
13254
13255 2021-03-17  Jan Hubicka  <jh@suse.cz>
13256
13257         * config/i386/x86-tune-costs.h (struct processor_costs): Update costs
13258         of gather to match reality.
13259         * config/i386/x86-tune.def (X86_TUNE_USE_GATHER): Enable for znver3.
13260
13261 2021-03-17  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
13262
13263         * config/aarch64/aarch64-builtins.c (aarch64_expand_rng_builtin): Use EQ
13264         to compare against CC_REG rather than NE.
13265
13266 2021-03-17  H.J. Lu  <hjl.tools@gmail.com>
13267
13268         PR target/99504
13269         * config/i386/i386.c (ix86_force_load_from_GOT_p): Support
13270         inline assembly statements.
13271         (ix86_print_operand): Update 'P' handling for -fno-plt.
13272
13273 2021-03-17  Tamar Christina  <tamar.christina@arm.com>
13274
13275         PR target/99542
13276         * config/aarch64/aarch64.c
13277         (aarch64_simd_clone_compute_vecsize_and_simdlen): Remove unused var.
13278
13279 2021-03-16  Segher Boessenkool  <segher@kernel.crashing.org>
13280
13281         PR target/98092
13282         * config/rs6000/predicates.md (branch_comparison_operator): Allow
13283         ordered and unordered for CCFPmode, if flag_finite_math_only.
13284
13285 2021-03-16  Jakub Jelinek  <jakub@redhat.com>
13286
13287         PR target/99600
13288         * config/i386/i386-expand.c (ix86_split_lea_for_addr): Emit a MULT
13289         rather than ASHIFT.
13290         * config/i386/i386.md (mult by 1248 into ashift): New splitter.
13291
13292 2021-03-16  Martin Liska  <mliska@suse.cz>
13293
13294         PR target/99592
13295         * optc-save-gen.awk: Add flag_ipa_ra to exceptions for
13296         cl_optimization_compare function.
13297
13298 2021-03-16  Ilya Leoshkevich  <iii@linux.ibm.com>
13299
13300         * config/s390/s390.c (f_constraint_p): Treat "fv" constraints
13301         as "v".
13302
13303 2021-03-16  Jakub Jelinek  <jakub@redhat.com>
13304
13305         PR target/99563
13306         * config/i386/i386.h (struct machine_function): Add
13307         has_explicit_vzeroupper bitfield.
13308         * config/i386/i386-expand.c (ix86_expand_builtin): Set
13309         cfun->machine->has_explicit_vzeroupper when expanding
13310         IX86_BUILTIN_VZEROUPPER.
13311         * config/i386/i386-features.c (rest_of_handle_insert_vzeroupper):
13312         Do the mode switching only when TARGET_VZEROUPPER, expensive
13313         optimizations turned on and not optimizing for size.
13314         (pass_insert_vzeroupper::gate): Enable even when
13315         cfun->machine->has_explicit_vzeroupper is set.
13316
13317 2021-03-16  Jakub Jelinek  <jakub@redhat.com>
13318
13319         PR target/99542
13320         * config/aarch64/aarch64.c
13321         (aarch64_simd_clone_compute_vecsize_and_simdlen): If not a function
13322         definition, walk TYPE_ARG_TYPES list if non-NULL for argument types
13323         instead of DECL_ARGUMENTS.  Ignore types for uniform arguments.
13324
13325 2021-03-15  Richard Biener  <rguenther@suse.de>
13326
13327         PR tree-optimization/98834
13328         * tree-ssa-sccvn.c (vn_reference_lookup_3): Handle missing
13329         subsetting by truncating the access size.
13330
13331 2021-03-15  Jan Hubicka  <hubicka@ucw.cz>
13332
13333         * config/i386/i386-options.c (processor_cost_table): Add znver3_cost.
13334         * config/i386/x86-tune-costs.h (znver3_cost): New gobal variable; copy
13335         of znver2_cost.
13336
13337 2021-03-15  Martin Liska  <mliska@suse.cz>
13338
13339         * spellcheck.c: Add missing comma in initialization.
13340
13341 2021-03-14  Uroš Bizjak  <ubizjak@gmail.com>
13342
13343         * config/i386/sse.md (*vec_extract<mode>): Merge alternative 0 with
13344         alternative 2 and alternative 1 with alternative 3 using
13345         YW register constraint.
13346         (*vec_extract<PEXTR_MODE12:mode>_zext): Merge alternatives
13347         using YW register constraint.
13348         (*vec_extractv16qi_zext): Ditto.
13349         (*vec_extractv4si): Merge alternatives 4 and 5
13350         using Yw register constraint.
13351         (*ssse3_palignr<mode>_perm): Use Yw instead of v for alternative 3.
13352
13353 2021-03-13  Martin Sebor  <msebor@redhat.com>
13354
13355         PR tree-optimization/99489
13356         * builtins.c (gimple_call_alloc_size): Fail gracefully when argument
13357         is not a call statement.
13358
13359 2021-03-13  Jakub Jelinek  <jakub@redhat.com>
13360
13361         PR tree-optimization/99544
13362         * match.pd (X + (X << C) -> X * (1 + (1 << C))): Don't simplify
13363         if for vector types multiplication can't be done in type's mode.
13364
13365 2021-03-12  Eric Botcazou  <ebotcazou@adacore.com>
13366
13367         PR target/99422
13368         * config/sparc/constraints.md (w): Rename to...
13369         (W): ... this and ditch previous implementation.
13370         * config/sparc/sparc.md (*movdi_insn_sp64): Replace W with m.
13371         (*movdf_insn_sp64): Likewise.
13372         (*mov<VM64:mode>_insn_sp64): Likewise.
13373         * config/sparc/sync.md (*atomic_compare_and_swap<mode>_1): Replace
13374         w with W.
13375         (atomic_compare_and_swap_leon3_1): Likewise.
13376         (*atomic_compare_and_swapdi_v8plus): Likewise.
13377         * config/sparc/sparc.c (memory_ok_for_ldd): Remove useless test on
13378         architecture and add missing address validity check during LRA.
13379
13380 2021-03-12  Tobias Burnus  <tobias@codesourcery.com>
13381
13382         PR fortran/98858
13383         * gimplify.c (omp_add_variable): Handle NULL_TREE as size
13384         occuring for assumed-size arrays in use_device_{ptr,addr}.
13385
13386 2021-03-12  Jakub Jelinek  <jakub@redhat.com>
13387
13388         PR target/99321
13389         * config/i386/constraints.md (YW): New internal constraint.
13390         * config/i386/sse.md (v_Yw): Add V4TI, V2TI, V1TI and TI cases.
13391         (*<sse2_avx2>_<insn><mode>3<mask_name>,
13392         *<sse2_avx2>_uavg<mode>3<mask_name>, *abs<mode>2,
13393         *<s>mul<mode>3_highpart<mask_name>): Use <v_Yw> instead of v in
13394         constraints.
13395         (<sse2_avx2>_psadbw): Use YW instead of v in constraints.
13396         (*avx2_pmaddwd, *sse2_pmaddwd, *<code>v8hi3, *<code>v16qi3,
13397         avx2_pmaddubsw256, ssse3_pmaddubsw128): Merge last two alternatives
13398         into one, use Yw instead of former x,v.
13399         (ashr<mode>3, <insn><mode>3): Use <v_Yw> instead of x in constraints of
13400         the last alternative.
13401         (<sse2_avx2>_packsswb<mask_name>, <sse2_avx2>_packssdw<mask_name>,
13402         <sse2_avx2>_packuswb<mask_name>, <sse4_1_avx2>_packusdw<mask_name>,
13403         *<ssse3_avx2>_pmulhrsw<mode>3<mask_name>, <ssse3_avx2>_palignr<mode>,
13404         <ssse3_avx2>_pshufb<mode>3<mask_name>): Merge last two alternatives
13405         into one, use <v_Yw> instead of former x,v.
13406         (avx2_interleave_highv32qi<mask_name>,
13407         vec_interleave_highv16qi<mask_name>): Use Yw instead of v in
13408         constraints.  Add && <mask_avx512bw_condition> to condition.
13409         (avx2_interleave_lowv32qi<mask_name>,
13410         vec_interleave_lowv16qi<mask_name>,
13411         avx2_interleave_highv16hi<mask_name>,
13412         vec_interleave_highv8hi<mask_name>,
13413         avx2_interleave_lowv16hi<mask_name>, vec_interleave_lowv8hi<mask_name>,
13414         avx2_pshuflw_1<mask_name>, sse2_pshuflw_1<mask_name>,
13415         avx2_pshufhw_1<mask_name>, sse2_pshufhw_1<mask_name>,
13416         avx2_<code>v16qiv16hi2<mask_name>, sse4_1_<code>v8qiv8hi2<mask_name>,
13417         *sse4_1_<code>v8qiv8hi2<mask_name>_1, <sse2_avx2>_<insn><mode>3): Use
13418         Yw instead of v in constraints.
13419         * config/i386/mmx.md (Yv_Yw): New define_mode_attr.
13420         (*mmx_<insn><mode>3, mmx_ashr<mode>3, mmx_<insn><mode>3): Use <Yv_Yw>
13421         instead of Yv in constraints.
13422         (*mmx_<insn><mode>3, *mmx_mulv4hi3, *mmx_smulv4hi3_highpart,
13423         *mmx_umulv4hi3_highpart, *mmx_pmaddwd, *mmx_<code>v4hi3,
13424         *mmx_<code>v8qi3, mmx_pack<s_trunsuffix>swb, mmx_packssdw,
13425         mmx_punpckhbw, mmx_punpcklbw, mmx_punpckhwd, mmx_punpcklwd,
13426         *mmx_uavgv8qi3, *mmx_uavgv4hi3, mmx_psadbw): Use Yw instead of Yv in
13427         constraints.
13428         (*mmx_pinsrw, *mmx_pinsrb, *mmx_pextrw, *mmx_pextrw_zext, *mmx_pextrb,
13429         *mmx_pextrb_zext): Use YW instead of Yv in constraints.
13430         (*mmx_eq<mode>3, mmx_gt<mode>3): Use x instead of Yv in constraints.
13431         (mmx_andnot<mode>3, *mmx_<code><mode>3): Split last alternative into
13432         two, one with just x, another isa avx512vl with v.
13433
13434 2021-03-12  Martin Liska  <mliska@suse.cz>
13435
13436         * doc/invoke.texi: Add missing param documentation.
13437
13438 2021-03-11  David Malcolm  <dmalcolm@redhat.com>
13439
13440         PR analyzer/96374
13441         * Makefile.in (ANALYZER_OBJS): Add analyzer/feasible-graph.o and
13442         analyzer/trimmed-graph.o.
13443         * doc/analyzer.texi (Analyzer Paths): Rewrite description of
13444         feasibility checking to reflect new implementation.
13445         * doc/invoke.texi (-fdump-analyzer-feasibility): Document new
13446         option.
13447         * shortest-paths.h (shortest_paths::get_shortest_distance): New.
13448
13449 2021-03-11  David Malcolm  <dmalcolm@redhat.com>
13450
13451         * digraph.cc (selftest::test_shortest_paths): Update
13452         shortest_paths init for new param.  Add test of
13453         SPS_TO_GIVEN_TARGET.
13454         * shortest-paths.h (enum shortest_path_sense): New.
13455         (shortest_paths::shortest_paths): Add "sense" param.
13456         Update for renamings.  Generalize to use "sense" param.
13457         (shortest_paths::get_shortest_path): Rename param.
13458         (shortest_paths::m_sense): New field.
13459         (shortest_paths::m_prev): Rename...
13460         (shortest_paths::m_best_edge): ...to this.
13461         (shortest_paths::get_shortest_path): Update for renamings.
13462         Conditionalize flipping of path on sense of traversal.
13463
13464 2021-03-11  David Malcolm  <dmalcolm@redhat.com>
13465
13466         * digraph.cc (selftest::test_shortest_paths): Add test coverage
13467         for paths from B and C.
13468         * shortest-paths.h (shortest_paths::shortest_paths): Handle
13469         unreachable nodes, rather than asserting.
13470
13471 2021-03-11  David Edelsohn  <dje.gcc@gmail.com>
13472
13473         PR target/99094
13474         * config/rs6000/rs6000.c (rs6000_xcoff_file_start): Don't create
13475         xcoff_tbss_section_name.
13476         * config/rs6000/xcoff.h (ASM_OUTPUT_TLS_COMMON): Use .lcomm.
13477         * xcoffout.c (xcoff_tbss_section_name): Delete.
13478         * xcoffout.h (xcoff_tbss_section_name): Delete.
13479
13480 2021-03-11  Richard Biener  <rguenther@suse.de>
13481
13482         PR tree-optimization/99523
13483         * tree-cfg.c (dump_function_to_file): Dump SSA names
13484         w/o identifier to the decls section as well, not only those
13485         without a VAR_DECL.
13486
13487 2021-03-11  Jakub Jelinek  <jakub@redhat.com>
13488
13489         PR ipa/99517
13490         * ipa-icf-gimple.c (func_checker::compare_gimple_call): For internal
13491         function calls with lhs fail if the lhs don't have compatible types.
13492
13493 2021-03-11  Hans-Peter Nilsson  <hp@axis.com>
13494
13495         * config/cris/cris.h (HARD_FRAME_POINTER_REGNUM): Define.
13496         Change FRAME_POINTER_REGNUM to correspond to a new faked
13497         register faked_fp, part of GENNONACR_REGS like faked_ap.
13498         (CRIS_FAKED_REGS_CONTENTS): New helper macro.
13499         (FIRST_PSEUDO_REGISTER, FIXED_REGISTERS, CALL_USED_REGISTERS):
13500         (REG_ALLOC_ORDER, REG_CLASS_CONTENTS, REGNO_OK_FOR_BASE_P)
13501         (ELIMINABLE_REGS, REGISTER_NAMES): Adjust accordingly.
13502         * config/cris/cris.md (CRIS_FP_REGNUM): Renumber to new faked
13503         register.
13504         (CRIS_REAL_FP_REGNUM): New constant.
13505         * config/cris/cris.c (cris_reg_saved_in_regsave_area): Check
13506         for HARD_FRAME_POINTER_REGNUM instead of FRAME_POINTER_REGNUM.
13507         (cris_initial_elimination_offset): Handle elimination changes
13508         to HARD_FRAME_POINTER_REGNUM instead of FRAME_POINTER_REGNUM
13509         and add one from FRAME_POINTER_REGNUM to
13510         HARD_FRAME_POINTER_REGNUM.
13511         (cris_expand_prologue, cris_expand_epilogue): Emit code for
13512         hard_frame_pointer_rtx instead of frame_pointer_rtx.
13513
13514 2021-03-10  David Edelsohn  <dje.gcc@gmail.com>
13515
13516         PR target/99492
13517         * config/rs6000/aix.h (ADJUST_FIELD_ALIGN): Add check for DCmode.
13518         * config/rs6000/rs6000.c (rs6000_special_round_type_align): Same.
13519
13520 2021-03-10  Vladimir N. Makarov  <vmakarov@redhat.com>
13521
13522         PR target/99422
13523         * lra-constraints.c (process_address_1): Don't check unknown
13524         constraint, use X for empty constraint.
13525
13526 2021-03-10  Alex Coplan  <alex.coplan@arm.com>
13527
13528         * config/aarch64/aarch64.c (aarch64_vfp_is_call_or_return_candidate):
13529         Fix typo in comment describing "is_ha" argument.
13530
13531 2021-03-10  John David Anglin  <danglin@gcc.gnu.org>
13532
13533         * doc/sourcebuild.texi: Document LRA target selector.
13534
13535 2021-03-10  David Malcolm  <dmalcolm@redhat.com>
13536
13537         * doc/ux.texi: Add subsection contrasting interactive versus
13538         batch usage of GCC.
13539
13540 2021-03-10  Joel Hutton  <joel.hutton@arm.com>
13541
13542         PR target/99102
13543         * tree-vect-stmts.c (vectorizable_store): Fix scatter store mask
13544         check condition.
13545         (vectorizable_load): Fix gather load mask check condition.
13546
13547 2021-03-10  Richard Biener  <rguenther@suse.de>
13548
13549         PR tree-optimization/99510
13550         * tree.c (check_aligned_type): Check that the candidate
13551         has TYPE_USER_ALIGN set instead of matching with the
13552         original type.
13553
13554 2021-03-10  Eric Botcazou  <ebotcazou@adacore.com>
13555
13556         * config/sparc/sparc.c (sparc_regmode_natural_size): Return 4 for
13557         float and vector integer modes only if the mode is not larger.
13558
13559 2021-03-10  Hans-Peter Nilsson  <hp@axis.com>
13560
13561         * config/cris/cris.h (DWARF_FRAME_REGISTERS): Define.
13562
13563 2021-03-09  Vladimir N. Makarov  <vmakarov@redhat.com>
13564
13565         * ira.c (ira_setup_alts, ira_get_dup_out_num): Process digital
13566         constraints > 9.
13567         * ira-lives.c (single_reg_class): Ditto.
13568
13569 2021-03-09  Sebastian Huber  <sebastian.huber@embedded-brains.de>
13570
13571         * config.gcc (aarch64-*-rtems*): Include general rtems.h after
13572         the architecture-specific rtems.h.
13573         (aarch64-*-rtems*): Likewise.
13574         (arm*-*-rtems*): Likewise.
13575         (epiphany-*-rtems*): Likewise.
13576         (riscv*-*-rtems*): Likewise.
13577
13578 2021-03-09  Jakub Jelinek  <jakub@redhat.com>
13579
13580         PR tree-optimization/99305
13581         * tree-ssa-phiopt.c (conditional_replacement): Test integer_pow2p
13582         before integer_all_onesp instead of vice versa.
13583
13584 2021-03-09  Richard Earnshaw  <rearnsha@arm.com>
13585
13586         * common/config/arm/arm-common.c (arm_config_default): Change type
13587         of 'i' to unsigned.
13588
13589 2021-03-09  Vladimir N. Makarov  <vmakarov@redhat.com>
13590
13591         PR target/99454
13592         * lra-constraints.c (process_address_1): Process constraint 'g'
13593         separately and digital constraints containing more one digit.
13594
13595 2021-03-09  Nick Clifton  <nickc@redhat.com>
13596
13597         * config/rx/rx.h (DBX_DEBUGGING_INFO): Define.
13598         (DWARF"_DEBUGGING_INFO): Define.
13599
13600 2021-03-09  Eric Botcazou  <ebotcazou@adacore.com>
13601
13602         PR c++/90448
13603         * calls.c (initialize_argument_information): When the argument
13604         is passed by reference, do not make a copy in a thunk only if
13605         the argument is already in memory.  Remove redundant test for
13606         the case of callee copy.
13607
13608 2021-03-09  Vladimir N. Makarov  <vmakarov@redhat.com>
13609
13610         PR target/99454
13611         * lra-constraints.c (process_address_1): Process 0..9 constraints
13612         in process_address_1.
13613
13614 2021-03-09  Andreas Krebbel  <krebbel@linux.ibm.com>
13615
13616         * config/s390/s390.c (struct s390_processor processor_table):
13617         Binutils name string must not be empty.
13618
13619 2021-03-09  Claudiu Zissulescu  <claziss@synopsys.com>
13620
13621         * config/arc/arc.c (arc_attr_type): Remove function.
13622
13623 2021-03-09  Martin Liska  <mliska@suse.cz>
13624
13625         PR target/99464
13626         * config/i386/i386-options.c (ix86_option_override_internal):
13627         Set isa_flags for OPTS argument and not for the global
13628         global_options.
13629
13630 2021-03-09  Aaron Sawdey  <acsawdey@linux.ibm.com>
13631
13632         * config/rs6000/predicates.md (ds_form_mem_operand): Check
13633         in correct code.
13634
13635 2021-03-09  Aaron Sawdey  <acsawdey@linux.ibm.com>
13636
13637         PR target/99070
13638         * config/rs6000/predicates.md (ds_form_mem_operand) New
13639         predicate.
13640         * config/rs6000/genfusion.pl (gen_ld_cmpi_p10) Use
13641         ds_form_mem_operand in ld/lwa patterns.
13642         * config/rs6000/fusion.md: Regenerate file.
13643
13644 2021-03-08  Martin Sebor  <msebor@redhat.com>
13645
13646         PR middle-end/98266
13647         * gimple-array-bounds.cc (inbounds_vbase_memaccess_p): New function.
13648         (array_bounds_checker::check_array_bounds): Call it.
13649
13650 2021-03-08  Martin Sebor  <msebor@redhat.com>
13651
13652         PR middle-end/97631
13653         * tree-ssa-strlen.c (maybe_warn_overflow): Test rawmem.
13654         (handle_builtin_stxncpy_strncat): Rename locals.  Determine
13655         destination size from allocation calls.  Issue a more appropriate
13656         kind of warning.
13657         (handle_builtin_memcpy): Pass true as rawmem to maybe_warn_overflow.
13658         (handle_builtin_memset): Same.
13659
13660 2021-03-08  Peter Bergner  <bergner@linux.ibm.com>
13661
13662         PR target/98959
13663         * config/rs6000/rs6000.c (rs6000_emit_le_vsx_permute): Add an assert
13664         to ensure we do not have an Altivec style address.
13665         * config/rs6000/vsx.md (*vsx_le_perm_load_<mode>): Disable if passed
13666         an Altivec style address.
13667         (*vsx_le_perm_store_<mode>): Likewise.
13668         (splitters after *vsx_le_perm_store_<mode>): Likewise.
13669         (vsx_load_<mode>): Disable special expander if passed an Altivec
13670         style address.
13671         (vsx_store_<mode>): Likewise.
13672
13673 2021-03-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
13674
13675         PR target/99437
13676         * config/aarch64/predicates.md (aarch64_simd_shift_imm_vec_qi): Define.
13677         (aarch64_simd_shift_imm_vec_hi): Likewise.
13678         (aarch64_simd_shift_imm_vec_si): Likewise.
13679         (aarch64_simd_shift_imm_vec_di): Likewise.
13680         * config/aarch64/aarch64-simd.md (aarch64_shrn<mode>_insn_le): Use
13681         predicate from above.
13682         (aarch64_shrn<mode>_insn_be): Likewise.
13683         (aarch64_rshrn<mode>_insn_le): Likewise.
13684         (aarch64_rshrn<mode>_insn_be): Likewise.
13685         (aarch64_shrn2<mode>_insn_le): Likewise.
13686         (aarch64_shrn2<mode>_insn_be): Likewise.
13687         (aarch64_rshrn2<mode>_insn_le): Likewise.
13688         (aarch64_rshrn2<mode>_insn_be): Likewise.
13689
13690 2021-03-08  Vladimir N. Makarov  <vmakarov@redhat.com>
13691
13692         PR target/99422
13693         * lra-constraints.c (skip_contraint_modifiers): New function.
13694         (process_address_1): Use it before lookup_constraint call.
13695
13696 2021-03-08  Martin Liska  <mliska@suse.cz>
13697
13698         PR target/99463
13699         * config/i386/i386-options.c (ix86_option_override_internal):
13700         Enable UINTR and HRESET for -march that supports it.
13701
13702 2021-03-08  Ilya Leoshkevich  <iii@linux.ibm.com>
13703
13704         * config/s390/s390.c (f_constraint_p): New function.
13705         (s390_md_asm_adjust): Implement TARGET_MD_ASM_ADJUST.
13706         (TARGET_MD_ASM_ADJUST): Likewise.
13707
13708 2021-03-08  Tobias Burnus  <tobias@codesourcery.com>
13709
13710         PR fortran/97927
13711         * tree-nested.c (convert_local_reference_stmt): Avoid calling
13712         lookup_field_for_decl for Fortran module (= namespace context).
13713
13714 2021-03-08  Andreas Krebbel  <krebbel@linux.ibm.com>
13715
13716         * config/s390/s390.c (s390_expand_vec_compare): Implement <0
13717         comparison with arithmetic right shift.
13718         (s390_expand_vcond): No need for a force_reg anymore.
13719         s390_vec_compare will do it.
13720         * config/s390/vector.md ("vec_cmp<mode><tointvec>"): Accept also
13721         immediate operands.
13722
13723 2021-03-07  Jakub Jelinek  <jakub@redhat.com>
13724
13725         PR target/99321
13726         * config/i386/constraints.md (Yw): Use SSE_REGS if TARGET_SSE
13727         but TARGET_AVX512BW or TARGET_AVX512VL is not set.  Adjust description
13728         and comment.
13729         * config/i386/sse.md (v_Yw): New define_mode_attr.
13730         (*<insn><mode>3, *mul<mode>3<mask_name>, *avx2_<code><mode>3,
13731         *sse4_1_<code><mode>3<mask_name>): Use <v_Yw> instead of v
13732         in constraints.
13733         * config/i386/mmx.md (mmx_pshufw_1, *vec_dupv4hi): Use Yw instead of
13734         xYw in constraints.
13735
13736 2021-03-06  Julian Brown  <julian@codesourcery.com>
13737
13738         * tree-pretty-print.c (dump_generic_node): Emit non-generic
13739         address space info for aggregates.
13740
13741 2021-03-06  Hans-Peter Nilsson  <hp@axis.com>
13742
13743         * config/cris/cris.h (MAX_FIXED_MODE_SIZE): Don't define.
13744
13745 2021-03-05  Jakub Jelinek  <jakub@redhat.com>
13746
13747         PR middle-end/99322
13748         * tree-cfg.c (bb_to_omp_idx): New variable.
13749         (execute_build_cfg): Release the bb_to_omp_idx vector after
13750         cleanup_tree_cfg returns.
13751         (handle_abnormal_edges): Remove bb_to_omp_idx argument, adjust
13752         for bb_to_omp_idx being a vec<int> instead of pointer to array
13753         of ints.
13754         (make_edges): Remove bb_to_omp_idx local variable, don't pass
13755         it to handle_abnormal_edges, adjust for bb_to_omp_idx being a
13756         vec<int> instead of pointer to array of ints and don't free/release
13757         it at the end.
13758         (remove_bb): When removing a bb and placing forced label somewhere
13759         else, ensure it is put into the same OpenMP region during cfg
13760         pass if possible or to entry successor as fallback.  Unregister
13761         bb from bb_to_omp_idx.
13762
13763 2021-03-05  Vladimir N. Makarov  <vmakarov@redhat.com>
13764
13765         PR target/99378
13766         * lra-constraints.c (process_address_1): Skip decomposing address
13767         for asm insn operand with unknown constraint.
13768
13769 2021-03-05  Martin Jambor  <mjambor@suse.cz>
13770
13771         PR ipa/98078
13772         * cgraph.c (cgraph_edge::set_call_stmt): Do not update all
13773         corresponding speculative edges if we are about to resolve
13774         sepculation.  Make edge direct (and so resolve speculations) before
13775         removing it from call_site_hash.
13776         (cgraph_edge::make_direct): Relax the initial assert to allow calling
13777         the function on speculative direct edges.
13778
13779 2021-03-05  Eric Botcazou  <ebotcazou@adacore.com>
13780
13781         PR rtl-optimization/99376
13782         * rtlanal.c (nonzero_bits1) <arithmetic operators>: If the number
13783         of low-order zero bits is too large, set the result to 0 directly.
13784
13785 2021-03-04  Jakub Jelinek  <jakub@redhat.com>
13786
13787         PR middle-end/93235
13788         * expmed.c (store_bit_field_using_insv): Return false of xop0 is a
13789         SUBREG and a SUBREG to op_mode can't be created.
13790
13791 2021-03-04  Alex Coplan  <alex.coplan@arm.com>
13792
13793         PR target/99381
13794         * config/aarch64/aarch64-sve-builtins.cc
13795         (function_resolver::require_vector_type): Handle error_mark_node.
13796
13797 2021-03-04  Ilya Leoshkevich  <iii@linux.ibm.com>
13798
13799         * cfgexpand.c (expand_asm_loc): Pass new parameter.
13800         (expand_asm_stmt): Likewise.
13801         * config/arm/aarch-common-protos.h (arm_md_asm_adjust): Add new
13802         parameter.
13803         * config/arm/aarch-common.c (arm_md_asm_adjust): Likewise.
13804         * config/arm/arm.c (thumb1_md_asm_adjust): Likewise.
13805         * config/cris/cris.c (cris_md_asm_adjust): Likewise.
13806         * config/i386/i386.c (ix86_md_asm_adjust): Likewise.
13807         * config/mn10300/mn10300.c (mn10300_md_asm_adjust): Likewise.
13808         * config/nds32/nds32.c (nds32_md_asm_adjust): Likewise.
13809         * config/pdp11/pdp11.c (pdp11_md_asm_adjust): Likewise.
13810         * config/rs6000/rs6000.c (rs6000_md_asm_adjust): Likewise.
13811         * config/vax/vax.c (vax_md_asm_adjust): Likewise.
13812         * config/visium/visium.c (visium_md_asm_adjust): Likewise.
13813         * doc/tm.texi (md_asm_adjust): Likewise.
13814         * target.def (md_asm_adjust): Likewise.
13815
13816 2021-03-04  Richard Biener  <rguenther@suse.de>
13817
13818         PR middle-end/97855
13819         * tree-pretty-print.c: Poison pp_printf.
13820         (dump_decl_name): Avoid use of pp_printf.
13821         (dump_block_node): Likewise.
13822         (dump_generic_node): Likewise.
13823
13824 2021-03-04  Martin Sebor  <msebor@redhat.com>
13825
13826         PR middle-end/96963
13827         PR middle-end/94655
13828         * builtins.c (handle_array_ref): New helper.
13829         (handle_mem_ref): New helper.
13830         (compute_objsize_r): Factor out ARRAY_REF and MEM_REF handling
13831         into new helper functions.  Correct a workaround for vectorized
13832         assignments.
13833
13834 2021-03-03  Pat Haugen  <pthaugen@linux.ibm.com>
13835
13836         * config/rs6000/dfp.md (extendddtd2, trunctddd2, *cmp<mode>_internal1,
13837         floatditd2, ftrunc<mode>2, fix<mode>di2, dfp_ddedpd_<mode>,
13838         dfp_denbcd_<mode>, dfp_dxex_<mode>, dfp_diex_<mode>,
13839         *dfp_sgnfcnc_<mode>, dfp_dscli_<mode>, dfp_dscri_<mode>): Update size
13840         attribute for Power10.
13841         * config/rs6000/mma.md (*movoo): Likewise.
13842         * config/rs6000/rs6000.md (define_attr "size"): Add 256.
13843         (define_mode_attr bits): Add DD/TD modes.
13844         * config/rs6000/sync.md (load_quadpti, store_quadpti, load_lockedpti,
13845         store_conditionalpti): Update size attribute for Power10.
13846
13847 2021-03-03  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
13848
13849         PR bootstrap/92002
13850         * config/sparc/t-sparc (tree-ssanames.o-warn): Don't error for
13851         -Wuninitialized, -Wmaybe-uninitialized.
13852         (wide-int.o-warn): Likewise.
13853
13854 2021-03-03  Richard Earnshaw  <rearnsha@arm.com>
13855
13856         * common/config/arm/arm-common.c: Include configargs.h.
13857         (arm_config_default): New function.
13858         (arm_target_mode): Renamed from arm_target_thumb_only.  Handle
13859         processors that do not support Thumb.  Take into account the
13860         --with-mode configuration setting for selecting the default.
13861         * config/arm/arm.h (OPTION_DEFAULT_SPECS): Remove entry for 'mode'.
13862         (TARGET_MODE_SPEC_FUNCTIONS): Update for function name change.
13863
13864 2021-03-03  Martin Liska  <mliska@suse.cz>
13865
13866         PR gcov-profile/97461
13867         * gcov-io.h (GCOV_PREALLOCATED_KVP): Remove.
13868
13869 2021-03-03  Eric Botcazou  <ebotcazou@adacore.com>
13870
13871         PR target/99234
13872         * config/i386/i386.c (ix86_compute_frame_layout): For a SEH target,
13873         point back the hard frame pointer to its default location when the
13874         frame is larger than SEH_MAX_FRAME_SIZE.
13875
13876 2021-03-03  Jakub Jelinek  <jakub@redhat.com>
13877
13878         PR target/99321
13879         * config/i386/predicates.md (logic_operator): New define_predicate.
13880         * config/i386/i386.md (mov + mem using comm arith peephole2):
13881         Punt if operands[1] is EXT_REX_SSE_REGNO_P, AVX512BW is not enabled
13882         and the inner mode is [QH]Imode.
13883
13884 2021-03-03  Jakub Jelinek  <jakub@redhat.com>
13885
13886         PR debug/99090
13887         * dwarf2out.c (dw_loc_list_struct): Add end_entry member.
13888         (new_loc_list): Clear end_entry.
13889         (output_loc_list): Only use DW_LLE_startx_length for -gsplit-dwarf
13890         if HAVE_AS_LEB128, otherwise use DW_LLE_startx_endx.  Fix comment
13891         typo.
13892         (index_location_lists): For dwarf_version >= 5 without HAVE_AS_LEB128,
13893         initialize also end_entry.
13894
13895 2021-03-03  Jakub Jelinek  <jakub@redhat.com>
13896
13897         PR target/99085
13898         * cfgrtl.c (fixup_partitions): When changing some bbs from hot to cold
13899         partitions, if in non-layout mode after reorder_blocks also move
13900         affected blocks to ensure a single partition transition.
13901
13902 2021-03-03  Jason Merrill  <jason@redhat.com>
13903
13904         PR c++/96078
13905         * cgraphunit.c (process_function_and_variable_attributes): Don't
13906         warn about flatten on an alias if the target also has it.
13907         * cgraph.h (symtab_node::get_alias_target_tree): New.
13908
13909 2021-03-02  David Edelsohn  <dje.gcc@gmail.com>
13910
13911         * config/rs6000/rs6000.md (tls_get_tpointer_internal): Prepend
13912         period to symbol name.
13913         (tls_get_addr_internal<mode>): Same.
13914
13915 2021-03-02  David Malcolm  <dmalcolm@redhat.com>
13916
13917         PR c/99323
13918         * diagnostic-show-locus.c
13919         (selftest::test_one_liner_many_fixits_2): Fix accidental usage of
13920         column 0.
13921
13922 2021-03-02  Martin Sebor  <msebor@redhat.com>
13923
13924         PR middle-end/99276
13925         * builtins.c (warn_for_access): Remove stray warning text.
13926
13927 2021-03-02  Martin Sebor  <msebor@redhat.com>
13928
13929         PR middle-end/99295
13930         * doc/extend.texi (attribute malloc): Reword and clarify nonaliasing
13931         property.
13932
13933 2021-03-02  Jakub Jelinek  <jakub@redhat.com>
13934
13935         PR debug/99319
13936         * dwarf2out.c (output_macinfo_op): Use DW_MACRO_*_str* even with
13937         -gdwarf-5 -gstrict-dwarf.  For -gsplit-dwarf -gdwarf-5 use
13938         DW_MACRO_*_strx instead of DW_MACRO_*_strp.  Handle
13939         DW_MACRO_define_strx and DW_MACRO_undef_strx.
13940         (save_macinfo_strings): Use DW_MACRO_*_str* even with
13941         -gdwarf-5 -gstrict-dwarf.  Handle DW_MACRO_define_strx and
13942         DW_MACRO_undef_strx.
13943
13944 2021-03-02  Andreas Krebbel  <krebbel@linux.ibm.com>
13945
13946         * config/s390/s390-builtin-types.def (BT_FN_V4SF_V8HI_UINT): New
13947         builtin signature.
13948         (BT_FN_V8HI_V8HI_UINT): Likewise.
13949         (BT_FN_V8HI_V4SF_V4SF_UINT): Likewise.
13950         * config/s390/s390-builtins.def (B_NNPA): New macro definition.
13951         (s390_vclfnhs, s390_vclfnls, s390_vcrnfs, s390_vcfn, s390_vcnf):
13952         New builtin definitions.
13953         * config/s390/s390-c.c (s390_cpu_cpp_builtins_internal): Bump
13954         vector extension version.
13955         * config/s390/s390.c (s390_expand_builtin): Check if builtins are
13956         available with current -march level.
13957         * config/s390/s390.md (UNSPEC_NNPA_VCLFNHS_V8HI)
13958         (UNSPEC_NNPA_VCLFNLS_V8HI, UNSPEC_NNPA_VCRNFS_V8HI)
13959         (UNSPEC_NNPA_VCFN_V8HI, UNSPEC_NNPA_VCNF_V8HI): New constants.
13960         * config/s390/vecintrin.h (vec_extend_to_fp32_hi): New macro.
13961         (vec_extend_to_fp32_lo): Likewise.
13962         (vec_round_from_fp32): Likewise.
13963         (vec_convert_to_fp16): Likewise.
13964         (vec_convert_from_fp16): Likewise.
13965         * config/s390/vx-builtins.md (vclfnhs_v8hi): New insn pattern.
13966         (vclfnls_v8hi): Likewise.
13967         (vcrnfs_v8hi): Likewise.
13968         (vcfn_v8hi): Likewise.
13969         (vcnf_v8hi): Likewise.
13970
13971 2021-03-02  Andreas Krebbel  <krebbel@linux.ibm.com>
13972
13973         * common/config/s390/s390-common.c (processor_flags_table): New entry.
13974         * config.gcc: Enable arch14 for --with-arch and --with-tune.
13975         * config/s390/driver-native.c (s390_host_detect_local_cpu): Pick
13976         arch14 for unknown CPU models.
13977         * config/s390/s390-opts.h (enum processor_type): Add PROCESSOR_ARCH14.
13978         * config/s390/s390.c (s390_issue_rate): Add case for PROCESSOR_ARCH14.
13979         (s390_get_sched_attrmask): Likewise.
13980         (s390_get_unit_mask): Likewise.
13981         * config/s390/s390.h (enum processor_flags): Add PF_NNPA and PF_ARCH14.
13982         (TARGET_CPU_ARCH14, TARGET_CPU_ARCH14_P, TARGET_CPU_NNPA)
13983         (TARGET_CPU_NNPA_P, TARGET_ARCH14, TARGET_ARCH14_P, TARGET_NNPA)
13984         (TARGET_NNPA_P): New macro definitions.
13985         * config/s390/s390.md ("cpu_facility", "enabled"): Add arch14 and nnpa.
13986         * config/s390/s390.opt: Add PROCESSOR_ARCH14.
13987
13988 2021-03-02  Jakub Jelinek  <jakub@redhat.com>
13989
13990         PR middle-end/95757
13991         * tree-vrp.c (register_edge_assert_for): Remove superfluous ()s around
13992         condition.  Call register_edge_assert_for_1 for == 0, != 0, == 1 and
13993         != 1 comparisons if name is lhs of a comparison.
13994
13995 2021-03-01  Iain Sandoe  <iain@sandoe.co.uk>
13996
13997         PR target/44107
13998         PR target/48097
13999         * config/darwin-protos.h (darwin_should_restore_cfa_state): New.
14000         * config/darwin.c (darwin_should_restore_cfa_state): New.
14001         * config/darwin.h (TARGET_ASM_SHOULD_RESTORE_CFA_STATE): New.
14002         * doc/tm.texi: Regenerated.
14003         * doc/tm.texi.in: Document TARGET_ASM_SHOULD_RESTORE_CFA_STATE.
14004         * dwarf2cfi.c (connect_traces): If the target requests, restore
14005         the CFA expression after a DW_CFA_restore.
14006         * target.def (TARGET_ASM_SHOULD_RESTORE_CFA_STATE): New hook.
14007
14008 2021-03-01  Martin Liska  <mliska@suse.cz>
14009
14010         PR target/99313
14011         * optc-save-gen.awk: Add 4 more exceptions.
14012
14013 2021-03-01  Nathan Sidwell  <nathan@acm.org>
14014
14015         PR c++/99294
14016         * tree.h (TYPE_ALIGN_RAW): New accessor.
14017         (TYPE_ALIGN): Use it.
14018
14019 2021-03-01  Jan Hubicka  <jh@suse.cz>
14020
14021         PR ipa/98338
14022         * ipa-fnsummary.c (compute_fn_summary): Fix sanity check.
14023
14024 2021-03-01  Eric Botcazou  <ebotcazou@adacore.com>
14025
14026         PR target/99234
14027         * config/i386/i386.c (ix86_compute_frame_layout): For a SEH target,
14028         point the hard frame pointer to the SSE register save area instead
14029         of the general register save area.  Perform only minimal adjustment
14030         for small frames if it is initially not correctly aligned.
14031         (ix86_expand_prologue): Remove early saves for a SEH target.
14032         * config/i386/winnt.c (struct seh_frame_state): Document constraint.
14033
14034 2021-02-28  Jakub Jelinek  <jakub@redhat.com>
14035
14036         PR c/99304
14037         * ipa.c (symbol_table::remove_unreachable_nodes): Fix a comment
14038         typo - referneced -> referenced.
14039         * tree.c (component_ref_size): Fix comment typo -
14040         refernce -> reference.
14041         * tree-ssa-alias.c (access_path_may_continue_p): Fix comment typo -
14042         traling -> trailing.
14043         (aliasing_component_refs_p): Fix comment typos -
14044         refernce -> reference and refernece -> reference and
14045         traling -> trailing.
14046         (nonoverlapping_refs_since_match_p): Fix comment typo -
14047         referneces -> references.
14048         * doc/invoke.texi (--param modref-max-bases): Fix a typo -
14049         referneces -> references.
14050
14051 2021-02-27  Iain Sandoe  <iain@sandoe.co.uk>
14052
14053         * config/host-darwin.c (darwin_gt_pch_use_address): Modify
14054         diagnostic message to avoid use of a contraction and format
14055         warning.
14056
14057 2021-02-27  Jakub Jelinek  <jakub@redhat.com>
14058
14059         PR other/99288
14060         * gcse.c (gcse_or_cprop_is_too_expensive): Use %wu instead of
14061         HOST_WIDE_INT_PRINT_UNSIGNED in warning format string.
14062         * ipa-devirt.c (ipa_odr_read_section): Use %wd instead of
14063         HOST_WIDE_INT_PRINT_DEC in inform format string.  Fix comment
14064         typos.
14065
14066 2021-02-26  Richard Biener  <rguenther@suse.de>
14067
14068         PR middle-end/99281
14069         * expr.c (store_field): For calls with return-slot optimization
14070         and addressable return type expand the store directly.
14071
14072 2021-02-26  Richard Biener  <rguenther@suse.de>
14073
14074         PR c/99275
14075         * builtins.c (warn_string_no_nul): Fix diagnostic formatting.
14076
14077 2021-02-26  Peter Bergner  <bergner@linux.ibm.com>
14078
14079         PR target/99279
14080         * config/rs6000/rs6000-call.c (rs6000_init_builtins): Replace assert
14081         with an "if" test.
14082
14083 2021-02-26  Aaron Sawdey  <acsawdey@linux.ibm.com>
14084
14085         * config.gcc: Add rs6000-pcrel-opt.o.
14086         * config/rs6000/rs6000-pcrel-opt.c: New file.
14087         * config/rs6000/pcrel-opt.md: New file.
14088         * config/rs6000/predicates.md: Add d_form_memory predicate.
14089         * config/rs6000/rs6000-cpus.def: Add OPTION_MASK_PCREL_OPT.
14090         * config/rs6000/rs6000-passes.def: Add pass_pcrel_opt.
14091         * config/rs6000/rs6000-protos.h: Add reg_to_non_prefixed(),
14092         pcrel_opt_valid_mem_p(), output_pcrel_opt_reloc(),
14093         and make_pass_pcrel_opt().
14094         * config/rs6000/rs6000.c (reg_to_non_prefixed): Make global.
14095         (rs6000_option_override_internal): Add pcrel-opt.
14096         (rs6000_delegitimize_address): Support pcrel-opt.
14097         (rs6000_opt_masks): Add pcrel-opt.
14098         (pcrel_opt_valid_mem_p): New function.
14099         (reg_to_non_prefixed): Make global.
14100         (rs6000_asm_output_opcode): Reset prepend_p_to_next_insn.
14101         (output_pcrel_opt_reloc): New function.
14102         * config/rs6000/rs6000.md (loads_extern_addr): New attr.
14103         (pcrel_extern_addr): Set loads_extern_addr.
14104         Add include for pcrel-opt.md.
14105         * config/rs6000/rs6000.opt: Add -mpcrel-opt.
14106         * config/rs6000/t-rs6000: Add rules for pcrel-opt.c and
14107         pcrel-opt.md.
14108
14109 2021-02-26  YunQiang Su  <yunqiang.su@cipunited.com>
14110
14111         PR target/98996
14112         * config/mips/mips.c (mips_expand_ext_as_unaligned_load):
14113         If TARGET_64BIT and dest is SUBREG, we check the width, if it
14114         equal to SImode, we use SImode operation, just like what we are
14115         doing for REG one.
14116
14117 2021-02-26  Marek Polacek  <polacek@redhat.com>
14118
14119         * builtins.c (warn_for_access): Fix typos.
14120
14121 2021-02-25  Iain Sandoe  <iain@sandoe.co.uk>
14122
14123         * config/aarch64/aarch64.md (<optab>_rol<mode>3): Add a '#'
14124         mark in front of the immediate quantity.
14125         (<optab>_rolsi3_uxtw): Likewise.
14126
14127 2021-02-25  Richard Earnshaw  <rearnsha@arm.com>
14128
14129         PR target/99271
14130         * config/arm/thumb2.md (nonsecure_call_reg_thumb2_fpcxt): New pattern.
14131         (nonsecure_call_value_reg_thumb2_fpcxt): Likewise.
14132         (nonsecure_call_reg_thumb2): Restrict to using r4 for the callee
14133         address and disable when the FPCXT is not available.
14134         (nonsecure_call_value_reg_thumb2): Likewise.
14135
14136 2021-02-25  Nathan Sidwell  <nathan@acm.org>
14137
14138         PR c++/99166
14139         * doc/invoke.texi (flang-info-module-cmi): Renamed option.
14140
14141 2021-02-25  Tamar Christina  <tamar.christina@arm.com>
14142
14143         * tree-vect-slp.c (optimize_load_redistribution_1): Abort on NULL nodes.
14144
14145 2021-02-25  Richard Biener  <rguenther@suse.de>
14146
14147         PR tree-optimization/99253
14148         * tree-vect-loop.c (check_reduction_path): First compute
14149         code, then verify out-of-loop uses.
14150
14151 2021-02-25  Jakub Jelinek  <jakub@redhat.com>
14152
14153         PR target/95798
14154         * match.pd ((T)(A) + CST -> (T)(A + CST)): Add :s to convert.
14155
14156 2021-02-25  Jakub Jelinek  <jakub@redhat.com>
14157
14158         PR tree-optimization/80635
14159         * tree-vrp.c (vrp_simplify_cond_using_ranges): Also handle
14160         VIEW_CONVERT_EXPR if modes are the same, innerop is integral and
14161         has mode precision.
14162
14163 2021-02-25  Richard Biener  <rguenther@suse.de>
14164
14165         * tree-vect-slp.c (optimize_load_redistribution_1): Delay
14166         load_map population.
14167         (vect_match_slp_patterns_2): Revert part of last change.
14168         (vect_analyze_slp): Do not interleave optimize_load_redistribution
14169         with pattern detection but do it afterwards.  Dump the
14170         whole SLP graph after pattern recognition and load
14171         redistribution optimization finished.
14172
14173 2021-02-24  Jakub Jelinek  <jakub@redhat.com>
14174
14175         PR fortran/99226
14176         * omp-low.c (struct omp_context): Add teams_nested_p and
14177         nonteams_nested_p members.
14178         (scan_omp_target): Diagnose teams nested inside of target with other
14179         directives strictly nested inside of the same target.
14180         (check_omp_nesting_restrictions): Set ctx->teams_nested_p or
14181         ctx->nonteams_nested_p as needed.
14182
14183 2021-02-24  Vladimir N. Makarov  <vmakarov@redhat.com>
14184
14185         PR inline-asm/99123
14186         * lra-constraints.c (uses_hard_regs_p): Don't use decompose_mem_address.
14187
14188 2021-02-24  Hans-Peter Nilsson  <hp@axis.com>
14189
14190         * config/cris/cris.c (cris_expand_prologue): Set
14191         current_function_static_stack_size, if flag_stack_usage_info.
14192
14193 2021-02-24  Pat Haugen  <pthaugen@linux.ibm.com>
14194
14195         * config/rs6000/rs6000.c (next_insn_prefixed_p): Rename.
14196         (rs6000_final_prescan_insn): Adjust.
14197         (rs6000_asm_output_opcode): Likewise.
14198
14199 2021-02-24  Martin Sebor  <msebor@redhat.com>
14200
14201         PR middle-end/97172
14202         * attribs.c (attr_access::free_lang_data): Clear attribute arg spec
14203         from function arguments.
14204
14205 2021-02-24  Tamar Christina  <tamar.christina@arm.com>
14206
14207         PR tree-optimization/99220
14208         * tree-vect-slp.c (optimize_load_redistribution_1): Remove
14209         node from cache when it's about to be deleted.
14210
14211 2021-02-24  Jakub Jelinek  <jakub@redhat.com>
14212
14213         PR tree-optimization/99225
14214         * fold-const.c (fold_binary_loc) <case NE_EXPR>: In (x & (1 << y)) != 0
14215         to ((x >> y) & 1) != 0 simplifications use build_one_cst instead of
14216         build_int_cst (..., 1).  Formatting fixes.
14217
14218 2021-02-24  Tamar Christina  <tamar.christina@arm.com>
14219
14220         PR tree-optimization/99149
14221         * tree-vect-slp-patterns.c (vect_detect_pair_op): Don't recreate the
14222         buffer.
14223         (vect_slp_reset_pattern): Remove.
14224         (complex_fma_pattern::matches): Remove call to vect_slp_reset_pattern.
14225         (complex_mul_pattern::build, complex_fma_pattern::build,
14226         complex_fms_pattern::build): Fix ref counts.
14227         * tree-vect-slp.c (vect_free_slp_tree): Undo SLP only pattern relevancy
14228         when node is being deleted.
14229         (vect_match_slp_patterns_2): Correct result of cache hit on patterns.
14230         (vect_schedule_slp): Invalidate SLP_TREE_REPRESENTATIVE of removed
14231         stores.
14232         * tree-vectorizer.c (vec_info::new_stmt_vec_info): Initialize value.
14233
14234 2021-02-24  Matthias Klose  <doko@ubuntu.com>
14235
14236         Revert:
14237         2020-12-07  Matthias Klose  <doko@ubuntu.com>
14238
14239         * genextract.c (print_header): Undefine ENABLE_RTL_CHECKING
14240         and ENABLE_RTL_FLAG_CHECKING.
14241
14242 2021-02-24  Richard Biener  <rguenther@suse.de>
14243
14244         PR c/99224
14245         * builtins.c (fold_builtin_next_arg): Avoid NULL arg.
14246
14247 2021-02-23  Peter Bergner  <bergner@linux.ibm.com>
14248
14249         * config/rs6000/mma.md (mma_assemble_pair): Rename from this...
14250         (vsx_assemble_pair): ...to this.
14251         (*mma_assemble_pair): Rename from this...
14252         (*vsx_assemble_pair): ...to this.
14253         (mma_disassemble_pair): Rename from this...
14254         (vsx_disassemble_pair): ...to this.
14255         (*mma_disassemble_pair): Rename from this...
14256         (*vsx_disassemble_pair): ...to this.
14257         * config/rs6000/rs6000-builtin.def (BU_MMA_V2, BU_MMA_V3,
14258         BU_COMPAT): New macros.
14259         (mma_assemble_pair): Rename from this...
14260         (vsx_assemble_pair): ...to this.
14261         (mma_disassemble_pair): Rename from this...
14262         (vsx_disassemble_pair): ...to this.
14263         (mma_assemble_pair): New compatibility built-in.
14264         (mma_disassemble_pair): Likewise.
14265         * config/rs6000/rs6000-call.c (struct builtin_compatibility): New.
14266         (RS6000_BUILTIN_COMPAT): Define.
14267         (bdesc_compat): New.
14268         (mma_expand_builtin): Use VSX_BUILTIN_DISASSEMBLE_PAIR_INTERNAL.
14269         (rs6000_gimple_fold_mma_builtin): Use MMA_BUILTIN_DISASSEMBLE_PAIR
14270         and VSX_BUILTIN_ASSEMBLE_PAIR.
14271         (rs6000_init_builtins): Register compatibility built-ins.
14272         (mma_init_builtins): Use VSX_BUILTIN_ASSEMBLE_PAIR,
14273         VSX_BUILTIN_ASSEMBLE_PAIR_INTERNAL, VSX_BUILTIN_DISASSEMBLE_PAIR and
14274         VSX_BUILTIN_DISASSEMBLE_PAIR_INTERNAL.
14275         * doc/extend.texi (__builtin_mma_assemble_pair): Rename from this...
14276         (__builtin_vsx_assemble_pair): ...to this.
14277         (__builtin_mma_disassemble_pair): Rename from this...
14278         (__builtin_vsx_disassemble_pair): ...to this.
14279
14280 2021-02-23  Martin Liska  <mliska@suse.cz>
14281
14282         PR sanitizer/99168
14283         * ipa-icf.c (sem_variable::merge): Do not merge 2 variables
14284         with different alignment. That leads to an invalid red zone
14285         size allocated in runtime.
14286
14287 2021-02-23  Jakub Jelinek  <jakub@redhat.com>
14288
14289         PR tree-optimization/99204
14290         * fold-const.c (fold_read_from_constant_string): Check that
14291         tree_fits_uhwi_p (index) rather than just that index is INTEGER_CST.
14292
14293 2021-02-23  Segher Boessenkool  <segher@kernel.crashing.org>
14294             Kewen Lin  <linkw@gcc.gnu.org>
14295
14296         * config/rs6000/rs6000.md (*rotl<mode>3_insert_3): Renamed to...
14297         (rotl<mode>3_insert_3): ...this.
14298         (plus_ior_xor): New code_iterator.
14299         (define_split for GPR rl*imi): New splitter.
14300         * config/rs6000/vsx.md (vsx_init_v4si): Use gen_rotldi3_insert_3
14301         for integer merging.
14302
14303 2021-02-22  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
14304
14305         * config/aarch64/aarch64-tuning-flags.def (cse_sve_vl_constants):
14306         Define.
14307         * config/aarch64/aarch64.md (add<mode>3): Force CONST_POLY_INT immediates
14308         into a register when the above is enabled.
14309         * config/aarch64/aarch64.c (neoversev1_tunings):
14310         AARCH64_EXTRA_TUNE_CSE_SVE_VL_CONSTANTS.
14311         (aarch64_rtx_costs): Use AARCH64_EXTRA_TUNE_CSE_SVE_VL_CONSTANTS.
14312
14313 2021-02-22  Hans-Peter Nilsson  <hp@axis.com>
14314
14315         * config/cris/cris.c (cris_print_operand) <'T'>: Change
14316         valid operand from is now an addi mult-value to shift-value.
14317         * config/cris/cris.md (*addi): Change expression of scaled
14318         operand from mult to ashift.
14319         * config/cris/cris.md (*addi_reload): New insn_and_split.
14320
14321 2021-02-22  John David Anglin  <danglin@gcc.gnu.org>
14322
14323         PR target/85074
14324         * config/pa/pa.c (TARGET_ASM_CAN_OUTPUT_MI_THUNK): Define as
14325         hook_bool_const_tree_hwi_hwi_const_tree_true.
14326         (pa_asm_output_mi_thunk): Add support for nonzero vcall_offset.
14327
14328 2021-02-22  Andre Vieira  <andre.simoesdiasvieira@arm.com>
14329
14330         PR rtl-optimization/98791
14331         * ira-conflicts.c (process_regs_for_copy): Don't create allocno copies
14332         for unordered modes.
14333
14334 2021-02-22  Martin Liska  <mliska@suse.cz>
14335
14336         * tree-inline.c (inline_forbidden_p): Set
14337         inline_forbidden_reason.
14338
14339 2021-02-22  Richard Biener  <rguenther@suse.de>
14340
14341         * tree-vect-slp.c (vect_bb_vectorization_profitable_p): Dump
14342         costed subgraph.
14343
14344 2021-02-22  Richard Biener  <rguenther@suse.de>
14345
14346         PR tree-optimization/99165
14347         * gimple-ssa-store-merging.c (pass_store_merging::process_store):
14348         Accumulate changed to ret.
14349
14350 2021-02-21  Uros Bizjak  <ubizjak@gmail.com>
14351
14352         Revert:
14353         2020-12-09  Uroš Bizjak  <ubizjak@gmail.com>
14354
14355         * config/i386/i386.h (REG_ALLOC_ORDER): Remove
14356
14357 2021-02-20  Ilya Leoshkevich  <iii@linux.ibm.com>
14358
14359         PR target/99134
14360         * config/s390/vector.md (trunctf<DFP_ALL:mode>2_vr): New
14361         pattern.
14362         (trunctf<DFP_ALL:mode>2): Likewise.
14363         (trunctdtf2_vr): Likewise.
14364         (trunctdtf2): Likewise.
14365         (extend<DFP_ALL:mode>tf2_vr): Likewise.
14366         (extend<DFP_ALL:mode>tf2): Likewise.
14367         (extendtftd2_vr): Likewise.
14368         (extendtftd2): Likewise.
14369
14370 2021-02-20  Ilya Leoshkevich  <iii@linux.ibm.com>
14371
14372         * config/s390/vector.md (*fprx2_to_tf): Rename to fprx2_to_tf,
14373         add memory alternative.
14374         (tf_to_fprx2): New pattern.
14375
14376 2021-02-19  Martin Sebor  <msebor@redhat.com>
14377
14378         PR c/97172
14379         * attribs.c (init_attr_rdwr_indices): Guard vblist use.
14380         (attr_access::free_lang_data): Remove a spurious test.
14381
14382 2021-02-19  Nathan Sidwell  <nathan@acm.org>
14383
14384         * doc/invoke.texi (flang-info-module-read): Document.
14385
14386 2021-02-19  Martin Liska  <mliska@suse.cz>
14387
14388         PR translation/99167
14389         * params.opt: Fix typo.
14390
14391 2021-02-19  Richard Biener  <rguenther@suse.de>
14392
14393         PR middle-end/99122
14394         * tree-inline.c (inline_forbidden_p): Do not inline functions
14395         with VLA arguments or return value.
14396
14397 2021-02-19  Jakub Jelinek  <jakub@redhat.com>
14398
14399         PR target/98998
14400         * config/arm/arm.md (*stack_protect_combined_set_insn,
14401         *stack_protect_combined_test_insn): If force_const_mem result
14402         is not valid general operand, force its address into the destination
14403         register first.
14404
14405 2021-02-19  Jakub Jelinek  <jakub@redhat.com>
14406
14407         PR ipa/99034
14408         * tree-cfg.c (gimple_merge_blocks): If bb a starts with eh landing
14409         pad or non-local label, put FORCED_LABELs from bb b after that label
14410         rather than before it.
14411
14412 2021-02-19  Andre Vieira  <andre.simoesdiasvieira@arm.com>
14413
14414         PR target/98657
14415         * config/aarch64/aarch64-sve.md (<ASHIFT:optab><mode>3): Use
14416         expand_vector_broadcast' to emit the vec_duplicate operand.
14417
14418 2021-02-18  Vladimir N. Makarov  <vmakarov@redhat.com>
14419
14420         PR rtl-optimization/96264
14421         * lra-remat.c (reg_overlap_for_remat_p): Check also output insn
14422         hard regs.
14423
14424 2021-02-18  H.J. Lu  <hjl.tools@gmail.com>
14425
14426         PR target/99113
14427         * varasm.c (get_section): Replace SUPPORTS_SHF_GNU_RETAIN with
14428         looking up the retain attribute.
14429         (resolve_unique_section): Likewise.
14430         (get_variable_section): Likewise.
14431         (switch_to_section): Likewise.  Warn when a symbol without the
14432         retain attribute and a symbol with the retain attribute are
14433         placed in the section with the same name, instead of the used
14434         attribute.
14435         * doc/extend.texi: Document the "retain" attribute.
14436
14437 2021-02-18  Nathan Sidwell  <nathan@acm.org>
14438
14439         PR c++/99023
14440         * doc/invoke.texi (flang-info-include-translate): Document header
14441         lookup behaviour.
14442
14443 2021-02-18  Richard Biener  <rguenther@suse.de>
14444
14445         PR middle-end/99122
14446         * ipa-fnsummary.c (analyze_function_body): Set
14447         CIF_FUNCTION_NOT_INLINABLE for VLA parameter calls.
14448         * tree-inline.c (insert_init_debug_bind): Pass NULL for
14449         error_mark_node values.
14450         (force_value_to_type): Do not build V_C_Es for WITH_SIZE_EXPR
14451         values.
14452         (setup_one_parameter): Delay force_value_to_type until when
14453         it's needed.
14454
14455 2021-02-18  Hans-Peter Nilsson  <hp@axis.com>
14456
14457         PR tree-optimization/99142
14458         * match.pd (clz cmp 0): Gate replacement on single_use of clz result.
14459
14460 2021-02-18  Jakub Jelinek  <jakub@redhat.com>
14461
14462         * wide-int-bitmask.h (wide_int_bitmask::wide_int_bitmask (),
14463         wide_int_bitmask::wide_int_bitmask (uint64_t),
14464         wide_int_bitmask::wide_int_bitmask (uint64_t, uint64_t),
14465         wide_int_bitmask::operator ~ () const,
14466         wide_int_bitmask::operator | (wide_int_bitmask) const,
14467         wide_int_bitmask::operator & (wide_int_bitmask) const): Use constexpr
14468         instead of inline.
14469         * config/i386/i386.h (PTA_3DNOW, PTA_3DNOW_A, PTA_64BIT, PTA_ABM,
14470         PTA_AES, PTA_AVX, PTA_BMI, PTA_CX16, PTA_F16C, PTA_FMA, PTA_FMA4,
14471         PTA_FSGSBASE, PTA_LWP, PTA_LZCNT, PTA_MMX, PTA_MOVBE, PTA_NO_SAHF,
14472         PTA_PCLMUL, PTA_POPCNT, PTA_PREFETCH_SSE, PTA_RDRND, PTA_SSE, PTA_SSE2,
14473         PTA_SSE3, PTA_SSE4_1, PTA_SSE4_2, PTA_SSE4A, PTA_SSSE3, PTA_TBM,
14474         PTA_XOP, PTA_AVX2, PTA_BMI2, PTA_RTM, PTA_HLE, PTA_PRFCHW, PTA_RDSEED,
14475         PTA_ADX, PTA_FXSR, PTA_XSAVE, PTA_XSAVEOPT, PTA_AVX512F, PTA_AVX512ER,
14476         PTA_AVX512PF, PTA_AVX512CD, PTA_NO_TUNE, PTA_SHA, PTA_PREFETCHWT1,
14477         PTA_CLFLUSHOPT, PTA_XSAVEC, PTA_XSAVES, PTA_AVX512DQ, PTA_AVX512BW,
14478         PTA_AVX512VL, PTA_AVX512IFMA, PTA_AVX512VBMI, PTA_CLWB, PTA_MWAITX,
14479         PTA_CLZERO, PTA_NO_80387, PTA_PKU, PTA_AVX5124VNNIW, PTA_AVX5124FMAPS,
14480         PTA_AVX512VPOPCNTDQ, PTA_SGX, PTA_AVX512VNNI, PTA_GFNI, PTA_VAES,
14481         PTA_AVX512VBMI2, PTA_VPCLMULQDQ, PTA_AVX512BITALG, PTA_RDPID,
14482         PTA_PCONFIG, PTA_WBNOINVD, PTA_AVX512VP2INTERSECT, PTA_PTWRITE,
14483         PTA_AVX512BF16, PTA_WAITPKG, PTA_MOVDIRI, PTA_MOVDIR64B, PTA_ENQCMD,
14484         PTA_CLDEMOTE, PTA_SERIALIZE, PTA_TSXLDTRK, PTA_AMX_TILE, PTA_AMX_INT8,
14485         PTA_AMX_BF16, PTA_UINTR, PTA_HRESET, PTA_KL, PTA_WIDEKL, PTA_AVXVNNI,
14486         PTA_X86_64_BASELINE, PTA_X86_64_V2, PTA_X86_64_V3, PTA_X86_64_V4,
14487         PTA_CORE2, PTA_NEHALEM, PTA_WESTMERE, PTA_SANDYBRIDGE, PTA_IVYBRIDGE,
14488         PTA_HASWELL, PTA_BROADWELL, PTA_SKYLAKE, PTA_SKYLAKE_AVX512,
14489         PTA_CASCADELAKE, PTA_COOPERLAKE, PTA_CANNONLAKE, PTA_ICELAKE_CLIENT,
14490         PTA_ICELAKE_SERVER, PTA_TIGERLAKE, PTA_SAPPHIRERAPIDS, PTA_ALDERLAKE,
14491         PTA_KNL, PTA_BONNELL, PTA_SILVERMONT, PTA_GOLDMONT, PTA_GOLDMONT_PLUS,
14492         PTA_TREMONT, PTA_KNM): Use constexpr instead of const.
14493
14494 2021-02-18  Jakub Jelinek  <jakub@redhat.com>
14495
14496         PR middle-end/99109
14497         * gimple-array-bounds.cc (build_zero_elt_array_type): Rename to ...
14498         (build_printable_array_type): ... this.  Add nelts argument.  For
14499         overaligned eltype, use TYPE_MAIN_VARIANT (eltype) instead.  If
14500         nelts, call build_array_type_nelts.
14501         (array_bounds_checker::check_mem_ref): Use build_printable_array_type
14502         instead of build_zero_elt_array_type and build_array_type_nelts.
14503
14504 2021-02-18  Jakub Jelinek  <jakub@redhat.com>
14505
14506         PR target/99104
14507         * config/i386/i386.c (distance_non_agu_define): Don't call
14508         extract_insn_cached here.
14509         (ix86_lea_outperforms): Save and restore recog_data around call
14510         to distance_non_agu_define and distance_agu_use.
14511         (ix86_ok_to_clobber_flags): Remove.
14512         (ix86_avoid_lea_for_add): Don't call ix86_ok_to_clobber_flags.
14513         (ix86_avoid_lea_for_addr): Likewise.  Adjust function comment.
14514         * config/i386/i386.md (*lea<mode>): Change from define_insn_and_split
14515         into define_insn.  Move the splitting to define_peephole2 and
14516         check there using peep2_regno_dead_p if FLAGS_REG is dead.
14517
14518 2021-02-17  Julian Brown  <julian@codesourcery.com>
14519
14520         * gimplify.c (gimplify_scan_omp_clauses): Handle ATTACH_DETACH
14521         for non-decls.
14522
14523 2021-02-17  Xi Ruoyao  <xry111@mengyan1223.wang>
14524
14525         PR target/98491
14526         * config/mips/mips.c (mips_symbol_insns): Do not use
14527         MSA_SUPPORTED_MODE_P if mode is MAX_MACHINE_MODE.
14528
14529 2021-02-16  Vladimir N. Makarov  <vmakarov@redhat.com>
14530
14531         PR inline-asm/98096
14532         * stmt.c (resolve_operand_name_1): Take inout operands into account
14533         for access to labels by names.
14534         * doc/extend.texi: Describe counting operands for accessing labels.
14535
14536 2021-02-16  Richard Biener  <rguenther@suse.de>
14537
14538         PR tree-optimization/38474
14539         * tree-ssa-structalias.c (variable_info::address_taken): New.
14540         (new_var_info): Initialize address_taken.
14541         (process_constraint): Set address_taken.
14542         (solve_constraints): Use the new address_taken flag rather
14543         than is_reg_var for sorting variables.
14544         (dump_constraint): Dump the variable number if the name
14545         is just NULL.
14546
14547 2021-02-16  Jakub Jelinek  <jakub@redhat.com>
14548
14549         PR target/99100
14550         * tree-vect-stmts.c (vectorizable_simd_clone_call): For num_calls != 1
14551         multiply by 4096 and for inbranch by 8192.
14552         * config/i386/i386.c (ix86_simd_clone_usable): For TARGET_AVX512F,
14553         return 3, 2 or 1 for mangle letters 'b', 'c' or 'd'.
14554
14555 2021-02-15  Maya Rashish  <coypu@sdf.org>
14556
14557         * config/aarch64/aarch64.c (aarch64_init_builtins):
14558         Call SUBTARGET_INIT_BUILTINS.
14559
14560 2021-02-15  Peter Bergner  <bergner@linux.ibm.com>
14561
14562         PR rtl-optimization/98872
14563         * init-regs.c (initialize_uninitialized_regs): Skip initialization
14564         if CONST0_RTX is NULL.
14565
14566 2021-02-15  Richard Sandiford  <richard.sandiford@arm.com>
14567
14568         PR rtl-optimization/98863
14569         * rtl-ssa/functions.h (function_info::bb_live_out_info): Delete.
14570         (function_info::build_info): Turn into a declaration, moving the
14571         definition to internals.h.
14572         (function_info::bb_walker): Declare.
14573         (function_info::create_reg_use): Likewise.
14574         (function_info::calculate_potential_phi_regs): Take a build_info
14575         parameter.
14576         (function_info::place_phis, function_info::create_ebbs): Declare.
14577         (function_info::calculate_ebb_live_in_for_debug): Likewise.
14578         (function_info::populate_backedge_phis): Delete.
14579         (function_info::start_block, function_info::end_block): Declare.
14580         (function_info::populate_phi_inputs): Delete.
14581         (function_info::m_potential_phi_regs): Move information to build_info.
14582         * rtl-ssa/internals.h: New file.
14583         (function_info::bb_phi_info): New class.
14584         (function_info::build_info): Moved from functions.h.
14585         Add a constructor and destructor.
14586         (function_info::build_info::ebb_use): Delete.
14587         (function_info::build_info::ebb_def): Likewise.
14588         (function_info::build_info::bb_live_out): Likewise.
14589         (function_info::build_info::tmp_ebb_live_in_for_debug): New variable.
14590         (function_info::build_info::potential_phi_regs): Likewise.
14591         (function_info::build_info::potential_phi_regs_for_debug): Likewise.
14592         (function_info::build_info::ebb_def_regs): Likewise.
14593         (function_info::build_info::bb_phis): Likewise.
14594         (function_info::build_info::bb_mem_live_out): Likewise.
14595         (function_info::build_info::bb_to_rpo): Likewise.
14596         (function_info::build_info::def_stack): Likewise.
14597         (function_info::build_info::old_def_stack_limit): Likewise.
14598         * rtl-ssa/internals.inl (function_info::build_info::record_reg_def):
14599         Remove the regno argument.  Push the previous definition onto the
14600         definition stack where necessary.
14601         * rtl-ssa/accesses.cc: Include internals.h.
14602         * rtl-ssa/changes.cc: Likewise.
14603         * rtl-ssa/blocks.cc: Likewise.
14604         (function_info::build_info::build_info): Define.
14605         (function_info::build_info::~build_info): Likewise.
14606         (function_info::bb_walker): New class.
14607         (function_info::bb_walker::bb_walker): Define.
14608         (function_info::add_live_out_use): Convert a logarithmic-complexity
14609         test into a linear one.  Allow the same definition to be passed
14610         multiple times.
14611         (function_info::calculate_potential_phi_regs): Moved from
14612         functions.cc.  Take a build_info parameter and store the
14613         information there instead.
14614         (function_info::place_phis): New function.
14615         (function_info::add_entry_block_defs): Update call to record_reg_def.
14616         (function_info::calculate_ebb_live_in_for_debug): New function.
14617         (function_info::add_phi_nodes): Use bb_phis to decide which
14618         registers need phi nodes and initialize ebb_def_regs accordingly.
14619         Do not add degenerate phis here.
14620         (function_info::add_artificial_accesses): Use create_reg_use.
14621         Assert that all definitions are listed in the DF LR sets.
14622         Update call to record_reg_def.
14623         (function_info::record_block_live_out): Record live-out register
14624         values in the phis of successor blocks.  Use the live-out set
14625         when processing the last block in an EBB, instead of always
14626         using the live-in sets of successor blocks.  AND the live sets
14627         with the set of registers that have been defined in the EBB,
14628         rather than with all potential phi registers.  Cope correctly
14629         with branches back to the start of the current EBB.
14630         (function_info::start_block): New function.
14631         (function_info::end_block): Likewise.
14632         (function_info::populate_phi_inputs): Likewise.
14633         (function_info::create_ebbs): Likewise.
14634         (function_info::process_all_blocks): Rewrite into a multi-phase
14635         process.
14636         * rtl-ssa/functions.cc: Include internals.h.
14637         (function_info::calculate_potential_phi_regs): Move to blocks.cc.
14638         (function_info::init_function_data): Remove caller.
14639         * rtl-ssa/insns.cc: Include internals.h
14640         (function_info::create_reg_use): New function.  Lazily any
14641         degenerate phis needed by the linear RPO view.
14642         (function_info::record_use): Use create_reg_use.  When processing
14643         debug uses, use potential_phi_regs and test it before checking
14644         whether the register is live on entry to the current EBB.  Lazily
14645         calculate ebb_live_in_for_debug.
14646         (function_info::record_call_clobbers): Update call to record_reg_def.
14647         (function_info::record_def): Likewise.
14648
14649 2021-02-15  Martin Liska  <mliska@suse.cz>
14650
14651         * toplev.c (init_asm_output): Free output of
14652         gen_command_line_string function.
14653         (process_options): Likewise.
14654
14655 2021-02-15  Martin Liska  <mliska@suse.cz>
14656
14657         * params.opt: Add 2 missing Param keywords.
14658
14659 2021-02-15  Eric Botcazou  <ebotcazou@adacore.com>
14660
14661         * df-core.c (df_worklist_dataflow_doublequeue): Use proper cast.
14662
14663 2021-02-15  Jakub Jelinek  <jakub@redhat.com>
14664
14665         PR tree-optimization/99079
14666         * match.pd (A % (pow2pcst << N) -> A & ((pow2pcst << N) - 1)): Remove
14667         useless tree_nop_conversion_p (type, TREE_TYPE (@3)) check.  Instead
14668         require both type and TREE_TYPE (@1) to be integral types and either
14669         type having smaller or equal precision, or TREE_TYPE (@1) being
14670         unsigned type, or type being signed type.  If TREE_TYPE (@1)
14671         doesn't have wrapping overflow, perform the subtraction of one in
14672         unsigned type.
14673
14674 2021-02-14  Jan Hubicka  <hubicka@ucw.cz>
14675             Richard Biener  <rguether@suse.de>
14676
14677         PR ipa/97346
14678         * ipa-reference.c (ipa_init): Only conditinally initialize
14679         reference_vars_to_consider.
14680         (propagate): Conditionally deninitialize reference_vars_to_consider.
14681         (ipa_reference_write_optimization_summary): Sanity check that
14682         reference_vars_to_consider is not allocated.
14683
14684 2021-02-13  Levy Hsu  <admin@levyhsu.com>
14685
14686         PR target/97417
14687         * config/riscv/riscv-shorten-memrefs.c (pass_shorten_memrefs): Add
14688         extend parameter to get_si_mem_base_reg declaration.
14689         (get_si_mem_base_reg): Add extend parameter.  Set it.
14690         (analyze): Pass extend arg to get_si_mem_base_reg.
14691         (transform): Likewise.  Use it when rewriting mems.
14692         * config/riscv/riscv.c (riscv_legitimize_move): Check for subword
14693         loads and emit sign/zero extending load followed by subreg move.
14694
14695 2021-02-13  Jim Wilson  <jimw@sifive.com>
14696
14697         PR target/97417
14698         * config/riscv/riscv.c (riscv_compressed_lw_address_p): Drop early
14699         exit when !reload_completed.  Only perform check for compressed reg
14700         if reload_completed.
14701         (riscv_rtx_costs): In MEM case, when optimizing for size and
14702         shorten memrefs, if not compressible, then increase cost.
14703
14704 2021-02-13  Jakub Jelinek  <jakub@redhat.com>
14705
14706         PR rtl-optimization/98439
14707         * recog.c (pass_split_before_regstack::gate): Enable even when
14708         pass_split_before_sched2 is enabled if -fselective-scheduling2 is
14709         on.
14710
14711 2021-02-13  Jakub Jelinek  <jakub@redhat.com>
14712
14713         PR target/96166
14714         * config/i386/mmx.md (*mmx_pshufd_1): Add a combine splitter for
14715         swap of V2SImode elements in memory into DImode memory rotate by 32.
14716
14717 2021-02-12  Martin Sebor  <msebor@redhat.com>
14718
14719         * tree-pretty-print.c (print_generic_expr_to_str): Update comment.
14720
14721 2021-02-12  Richard Sandiford  <richard.sandiford@arm.com>
14722
14723         * rtl-ssa/accesses.cc (function_info::make_use_available): Use
14724         m_temp_obstack rather than m_obstack to allocate the temporary use.
14725
14726 2021-02-12  Richard Sandiford  <richard.sandiford@arm.com>
14727
14728         * df-problems.c (df_lr_bb_local_compute): Treat partial definitions
14729         as read-modify operations.
14730
14731 2021-02-12  Richard Biener  <rguenther@suse.de>
14732
14733         PR middle-end/38474
14734         * ipa-fnsummary.c (unmodified_parm_1): Only walk when
14735         fbi->aa_walk_budget is bigger than zero.  Update
14736         fbi->aa_walk_budget.
14737         (param_change_prob): Likewise.
14738         * ipa-prop.c (detect_type_change_from_memory_writes):
14739         Properly account walk_aliased_vdefs.
14740         (parm_preserved_before_stmt_p): Canonicalize updates.
14741         (parm_ref_data_preserved_p): Likewise.
14742         (parm_ref_data_pass_through_p): Likewise.
14743         (determine_known_aggregate_parts): Account own alias queries.
14744
14745 2021-02-12  Martin Liska  <mliska@suse.cz>
14746
14747         * opts-common.c (decode_cmdline_option): Release werror_arg.
14748         * opts.c (gen_producer_string): Release output of
14749         gen_command_line_string.
14750
14751 2021-02-12  Richard Biener  <rguenther@suse.de>
14752
14753         PR tree-optimization/38474
14754         * params.opt (-param=max-store-chains-to-track=): New param.
14755         (-param=max-stores-to-track=): Likewise.
14756         * doc/invoke.texi (max-store-chains-to-track): Document.
14757         (max-stores-to-track): Likewise.
14758         * gimple-ssa-store-merging.c (pass_store_merging::m_n_chains):
14759         New.
14760         (pass_store_merging::m_n_stores): Likewise.
14761         (pass_store_merging::terminate_and_process_chain): Update
14762         m_n_stores and m_n_chains.
14763         (pass_store_merging::process_store): Likewise.   Terminate
14764         oldest chains if the number of stores or chains get too large.
14765         (imm_store_chain_info::terminate_and_process_chain): Dump
14766         chain length.
14767
14768 2021-02-11  Eric Botcazou  <ebotcazou@adacore.com>
14769
14770         * config/i386/winnt.c (i386_pe_seh_unwind_emit): When switching to
14771         the cold section, emit a nop before the directive if the previous
14772         active instruction can throw.
14773
14774 2021-02-11  Peter Bergner  <bergner@linux.ibm.com>
14775
14776         PR target/99041
14777         * config/rs6000/predicates.md (mma_assemble_input_operand): Restrict
14778         memory addresses that are legal for quad word accesses.
14779
14780 2021-02-11  Andrea Corallo  <andrea.corallo@arm.com>
14781
14782         PR target/98931
14783         * config/arm/thumb2.md (*doloop_end_internal): Generate
14784         alternative sequence to handle long range branches.
14785
14786 2021-02-11  Joel Hutton  <joel.hutton@arm.com>
14787
14788         PR tree-optimization/98772
14789         * optabs-tree.c (supportable_half_widening_operation): New function
14790         to check for supportable V8QI->V8HI widening patterns.
14791         * optabs-tree.h (supportable_half_widening_operation): New function.
14792         * tree-vect-stmts.c (vect_create_half_widening_stmts): New function
14793         to create promotion stmts for V8QI->V8HI widening patterns.
14794         (vectorizable_conversion): Add case for V8QI->V8HI.
14795
14796 2021-02-11  Richard Biener  <rguenther@suse.de>
14797
14798         * sparseset.h (SPARSESET_ELT_BITS): Remove.
14799         (SPARSESET_ELT_TYPE): Use unsigned int.
14800         * fwprop.c: Do not include sparseset.h.
14801
14802 2021-02-10  Jakub Jelinek  <jakub@redhat.com>
14803
14804         PR c++/99035
14805         * varasm.c (declare_weak): For -fsyntax-only, allow even
14806         TREE_ASM_WRITTEN function decls.
14807
14808 2021-02-10  Jakub Jelinek  <jakub@redhat.com>
14809
14810         PR target/99025
14811         * config/i386/sse.md (fix<fixunssuffix>_truncv2sfv2di2,
14812         <insn>v8qiv8hi2, <insn>v8qiv8si2, <insn>v4qiv4si2, <insn>v4hiv4si2,
14813         <insn>v8qiv8di2, <insn>v4qiv4di2, <insn>v2qiv2di2, <insn>v4hiv4di2,
14814         <insn>v2hiv2di2, <insn>v2siv2di2): Force operands[1] into REG before
14815         calling simplify_gen_subreg on it.
14816
14817 2021-02-10  Martin Liska  <mliska@suse.cz>
14818
14819         * config/nvptx/nvptx.c (nvptx_option_override): Use
14820         flag_patchable_function_entry instead of the removed
14821         function_entry_patch_area_size.
14822
14823 2021-02-10  Martin Liska  <mliska@suse.cz>
14824
14825         PR tree-optimization/99002
14826         PR tree-optimization/99026
14827         * gimple-if-to-switch.cc (if_chain::is_beneficial): Fix memory
14828         leak when adjacent cases are merged.
14829         * tree-switch-conversion.c (switch_decision_tree::analyze_switch_statement): Use
14830         release_clusters.
14831         (make_pass_lower_switch): Remove trailing whitespace.
14832         * tree-switch-conversion.h (release_clusters): New.
14833
14834 2021-02-10  Richard Biener  <rguenther@suse.de>
14835
14836         PR rtl-optimization/99054
14837         * cfgrtl.c (rtl-optimization/99054): Return an auto_vec.
14838         (fixup_partitions): Adjust.
14839         (rtl_verify_edges): Likewise.
14840
14841 2021-02-10  Jakub Jelinek  <jakub@redhat.com>
14842
14843         PR middle-end/99007
14844         * gimplify.c (gimplify_scan_omp_clauses): For MEM_REF on reductions,
14845         temporarily disable gimplify_ctxp->into_ssa around gimplify_expr
14846         calls.
14847
14848 2021-02-10  Richard Biener  <rguenther@suse.de>
14849
14850         PR ipa/99029
14851         * ipa-pure-const.c (propagate_malloc): Use an auto_vec<>
14852         for callees.
14853
14854 2021-02-10  Richard Biener  <rguenther@suse.de>
14855
14856         PR tree-optimization/99024
14857         * tree-vect-loop.c (_loop_vec_info::~_loop_vec_info): Only
14858         clear loop->aux if it is associated with the destroyed loop_vinfo.
14859
14860 2021-02-10  Martin Liska  <mliska@suse.cz>
14861
14862         PR tree-optimization/99002
14863         * gimple-if-to-switch.cc (find_conditions): Fix memory leak
14864         in the function.
14865
14866 2021-02-10  Martin Liska  <mliska@suse.cz>
14867
14868         PR ipa/99003
14869         * ipa-icf.c (sem_item::add_reference): Fix memory leak when
14870         a reference exists.
14871
14872 2021-02-10  Jakub Jelinek  <jakub@redhat.com>
14873
14874         PR debug/98755
14875         * dwarf2out.c (prune_unused_types_walk): Mark DW_TAG_variable DIEs
14876         at class scope for DWARF5+.
14877
14878 2021-02-09  Eric Botcazou  <ebotcazou@adacore.com>
14879
14880         PR rtl-optimization/96015
14881         * reorg.c (skip_consecutive_labels): Minor comment tweaks.
14882         (relax_delay_slots): When deleting a jump to the next active
14883         instruction over a barrier, first delete the barrier if the
14884         jump is the only way to reach the target label.
14885
14886 2021-02-09  Andre Vieira  <andre.simoesdiasvieira@arm.com>
14887
14888         * config/aarch64/aarch64-cost-tables.h: Add entries for vect.mul.
14889         * config/aarch64/aarch64.c (aarch64_rtx_mult_cost): Use vect.mul for
14890         vector multiplies and vect.alu for SSRA.
14891         * config/arm/aarch-common-protos.h (struct vector_cost_table): Define
14892         vect.mul cost field.
14893         * config/arm/aarch-cost-tables.h: Add entries for vect.mul.
14894         * config/arm/arm.c: Likewise.
14895
14896 2021-02-09  Richard Biener  <rguenther@suse.de>
14897
14898         PR tree-optimization/98863
14899         * tree-ssa-sccvn.h (vn_avail::next_undo): Add.
14900         * tree-ssa-sccvn.c (last_pushed_avail): New global.
14901         (rpo_elim::eliminate_push_avail): Chain pushed avails.
14902         (unwind_state::avail_top): Add.
14903         (do_unwind): Rewrite unwinding of avail entries.
14904         (do_rpo_vn): Initialize last_pushed_avail and
14905         avail_top of the undo state.
14906
14907 2021-02-09  Jakub Jelinek  <jakub@redhat.com>
14908
14909         PR middle-end/99004
14910         * calls.c (maybe_warn_rdwr_sizes): Change s0 and s1 type from
14911         const char * to char * and free those pointers after use.
14912
14913 2021-02-09  Richard Biener  <rguenther@suse.de>
14914
14915         PR tree-optimization/99017
14916         * tree-vect-slp.c (vect_bb_vectorization_profitable_p): Allow
14917         zero vector cost entries.
14918
14919 2021-02-08  Andre Vieira  <andre.simoesdiasvieira@arm.com>
14920
14921         PR middle-end/98974
14922         * tree-vect-stmts.c (vectorizable_condition): Remove shadow vec_num
14923         parameter in vectorizable_condition.
14924
14925 2021-02-08  Richard Biener  <rguenther@suse.de>
14926
14927         PR lto/96591
14928         * tree.c (walk_tree_1): Walk VECTOR_CST elements.
14929
14930 2021-02-08  Martin Liska  <mliska@suse.cz>
14931
14932         PR lto/98971
14933         * cfgexpand.c (pass_expand::execute): Parse per-function option
14934         flag_patchable_function_entry and use it.
14935         * common.opt: Remove function_entry_patch_area_size and
14936         function_entry_patch_area_start global variables.
14937         * opts.c (parse_and_check_patch_area): New function.
14938         (common_handle_option): Use it.
14939         * opts.h (parse_and_check_patch_area): New function.
14940         * toplev.c (process_options): Parse and use
14941         function_entry_patch_area_size.
14942
14943 2021-02-08  Martin Sebor  <msebor@redhat.com>
14944
14945         * doc/extend.texi (attribute malloc): Correct typos.
14946
14947 2021-02-05  Nathan Sidwell  <nathan@acm.org>
14948
14949         PR driver/98943
14950         * gcc.c (driver::maybe_run_linker): Check for input file
14951         accessibility if not linking.
14952
14953 2021-02-05  Richard Biener  <rguenther@suse.de>
14954
14955         PR tree-optimization/98855
14956         * tree-vectorizer.h (add_stmt_cost): New overload.
14957         * tree-vect-slp.c (li_cost_vec_cmp): New.
14958         (vect_bb_slp_scalar_cost): Cost individual loop regions
14959         separately.  Account for the scalar instance root stmt.
14960
14961 2021-02-05  Tom de Vries  <tdevries@suse.de>
14962
14963         PR debug/98656
14964         * tree-switch-conversion.c (jump_table_cluster::emit): Add loc
14965         argument.
14966         (bit_test_cluster::emit): Reuse location_t for newly created
14967         gswitch statement.
14968         (switch_decision_tree::try_switch_expansion): Preserve
14969         location_t.
14970         * tree-switch-conversion.h: Change function signatures.
14971
14972 2021-02-05  Jakub Jelinek  <jakub@redhat.com>
14973
14974         PR target/98957
14975         * config/i386/i386-options.c (m_NONE, m_ALL): Define.
14976         * config/i386/x86-tune.def (X86_TUNE_BRANCH_PREDICTION_HINTS,
14977         X86_TUNE_PROMOTE_QI_REGS): Use m_NONE instead of 0U.
14978         (X86_TUNE_QIMODE_MATH): Use m_ALL instead of ~0U.
14979
14980 2021-02-05  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
14981
14982         * config/aarch64/aarch64-simd-builtins.def (get_high): Define builtin.
14983         * config/aarch64/aarch64-simd.md (aarch64_get_high<mode>): Define.
14984         * config/aarch64/arm_neon.h (__GET_HIGH): Delete.
14985         (vget_high_f16): Reimplement using new builtin.
14986         (vget_high_f32): Likewise.
14987         (vget_high_f64): Likewise.
14988         (vget_high_p8): Likewise.
14989         (vget_high_p16): Likewise.
14990         (vget_high_p64): Likewise.
14991         (vget_high_s8): Likewise.
14992         (vget_high_s16): Likewise.
14993         (vget_high_s32): Likewise.
14994         (vget_high_s64): Likewise.
14995         (vget_high_u8): Likewise.
14996         (vget_high_u16): Likewise.
14997         (vget_high_u32): Likewise.
14998         (vget_high_u64): Likewise.
14999
15000 2021-02-05  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
15001
15002         * config/aarch64/aarch64-simd-builtins.def (get_low): Define builtin.
15003         * config/aarch64/aarch64-simd.md (aarch64_get_low<mode>): Define.
15004         * config/aarch64/arm_neon.h (__GET_LOW): Delete.
15005         (vget_low_f16): Reimplement using new builtin.
15006         (vget_low_f32): Likewise.
15007         (vget_low_f64): Likewise.
15008         (vget_low_p8): Likewise.
15009         (vget_low_p16): Likewise.
15010         (vget_low_p64): Likewise.
15011         (vget_low_s8): Likewise.
15012         (vget_low_s16): Likewise.
15013         (vget_low_s32): Likewise.
15014         (vget_low_s64): Likewise.
15015         (vget_low_u8): Likewise.
15016         (vget_low_u16): Likewise.
15017         (vget_low_u32): Likewise.
15018         (vget_low_u64): Likewise.
15019
15020 2021-02-05  Kito Cheng  <kito.cheng@sifive.com>
15021
15022         * gcc.c (print_multilib_info): Check all required argument is provided
15023         by default arg.
15024
15025 2021-02-05  liuhongt  <hongtao.liu@intel.com>
15026
15027         PR target/98537
15028         * config/i386/i386-expand.c (ix86_expand_sse_cmp): Don't
15029         generate integer mask comparison for 128/256-bits vector when
15030         op_true/op_false is NULL_RTX or CONSTM1_RTX/CONST0_RTX. Also
15031         delete redundant !maskcmp condition.
15032         (ix86_expand_int_vec_cmp): Ditto but no redundant deletion
15033         here.
15034         (ix86_expand_sse_movcc): Delete definition of maskcmp, add the
15035         condition directly to if (maskcmp), add extra check for
15036         cmpmode, it should be MODE_INT.
15037         (ix86_expand_fp_vec_cmp): Pass NULL to ix86_expand_sse_cmp's
15038         parameters op_true/op_false.
15039         (ix86_use_mask_cmp_p): New.
15040
15041 2021-02-05  liuhongt  <hongtao.liu@intel.com>
15042
15043         PR target/98172
15044         * config/i386/x86-tune.def (X86_TUNE_AVX256_UNALIGNED_LOAD_OPTIMAL):
15045         Remove m_GENERIC from ~list.
15046         (X86_TUNE_AVX256_UNALIGNED_STORE_OPTIMAL): Ditto.
15047
15048 2021-02-04  David Malcolm  <dmalcolm@redhat.com>
15049
15050         PR c/97932
15051         * diagnostic-show-locus.c (compatible_locations_p): Require
15052         locations in the same macro map to be either both from the
15053         macro definition, or both from the macro arguments.
15054
15055 2021-02-04  Jonathan Wright  <jonathan.wright@arm.com>
15056
15057         * config/aarch64/aarch64-simd-builtins.def: Add
15058         [su]mull_hi_lane[q] builtin generator macros.
15059         * config/aarch64/aarch64-simd.md
15060         (aarch64_<su>mull_hi_lane<mode>_insn): Define.
15061         (aarch64_<su>mull_hi_lane<mode>): Define.
15062         (aarch64_<su>mull_hi_laneq<mode>_insn): Define.
15063         (aarch64_<su>mull_hi_laneq<mode>): Define.
15064         * config/aarch64/arm_neon.h (vmull_high_lane_s16): Use RTL
15065         builtin instead of inline asm.
15066         (vmull_high_lane_s32): Likewise.
15067         (vmull_high_lane_u16): Likewise.
15068         (vmull_high_lane_u32): Likewise.
15069         (vmull_high_laneq_s16): Likewise.
15070         (vmull_high_laneq_s32): Likewise.
15071         (vmull_high_laneq_u16): Likewise.
15072         (vmull_high_laneq_u32): Liekwise.
15073
15074 2021-02-04  Jonathan Wright  <jonathan.wright@arm.com>
15075
15076         * config/aarch64/aarch64-simd-builtins.def: Add [su]mull_hi_n
15077         builtin generator macros.
15078         * config/aarch64/aarch64-simd.md
15079         (aarch64_<su>mull_hi_n<mode>_insn): Define.
15080         (aarch64_<su>mull_hi_n<mode>): Define.
15081         * config/aarch64/arm_neon.h (vmull_high_n_s16): Use RTL builtin
15082         instead of inline asm.
15083         (vmull_high_n_s32): Likewise.
15084         (vmull_high_n_u16): Likewise.
15085         (vmull_high_n_u32): Likewise.
15086
15087 2021-02-04  Richard Biener  <rguenther@suse.de>
15088
15089         PR tree-optimization/98855
15090         * tree-vect-loop.c (vectorizable_phi): Do not cost
15091         single-argument PHIs.
15092         * tree-vect-slp.c (vect_bb_slp_scalar_cost): Likewise.
15093         * tree-vect-stmts.c (vectorizable_bswap): Also perform
15094         costing for SLP operation.
15095
15096 2021-02-04  Martin Liska  <mliska@suse.cz>
15097
15098         * doc/extend.texi: Mention -mprefer-vector-width in target
15099         attributes.
15100
15101 2021-02-03  Martin Sebor  <msebor@redhat.com>
15102
15103         PR tree-optimization/98937
15104         * tree-ssa-strlen.c (strlen_dom_walker::~strlen_dom_walker): Define.
15105         Flush pointer_query cache.
15106
15107 2021-02-03  Aaron Sawdey  <acsawdey@linux.ibm.com>
15108
15109         * config/rs6000/genfusion.pl (gen_2logical): Add missing
15110         fixes based on patch review.
15111         * config/rs6000/fusion.md: Regenerate file.
15112
15113 2021-02-03  Aaron Sawdey  <acsawdey@linux.ibm.com>
15114
15115         * config/rs6000/t-rs6000: Comment out auto generation of
15116         fusion.md for now.
15117
15118 2021-02-03  Andrew Stubbs  <ams@codesourcery.com>
15119
15120         * config/gcn/gcn-opts.h (enum processor_type): Add PROCESSOR_GFX908.
15121         * config/gcn/gcn.c (gcn_omp_device_kind_arch_isa): Add gfx908.
15122         (output_file_start): Add gfx908.
15123         * config/gcn/gcn.opt (gpu_type): Add gfx908.
15124         * config/gcn/t-gcn-hsa (MULTILIB_OPTIONS): Add march=gfx908.
15125         (MULTILIB_DIRNAMES): Add gfx908.
15126         * config/gcn/mkoffload.c (EF_AMDGPU_MACH_AMDGCN_GFX908): New define.
15127         (main): Recognize gfx908.
15128         * config/gcn/t-omp-device: Add gfx908.
15129
15130 2021-02-03  Jonathan Wright  <jonathan.wright@arm.com>
15131
15132         * config/aarch64/aarch64-simd-builtins.def: Add
15133         [su]mlsl_hi_lane[q] builtin macro generators.
15134         * config/aarch64/aarch64-simd.md
15135         (aarch64_<su>mlsl_hi_lane<mode>_insn): Define.
15136         (aarch64_<su>mlsl_hi_lane<mode>): Define.
15137         (aarch64_<su>mlsl_hi_laneq<mode>_insn): Define.
15138         (aarch64_<su>mlsl_hi_laneq<mode>): Define.
15139         * config/aarch64/arm_neon.h (vmlsl_high_lane_s16): Use RTL
15140         builtin instead of inline asm.
15141         (vmlsl_high_lane_s32): Likewise.
15142         (vmlsl_high_lane_u16): Likewise.
15143         (vmlsl_high_lane_u32): Likewise.
15144         (vmlsl_high_laneq_s16): Likewise.
15145         (vmlsl_high_laneq_s32): Likewise.
15146         (vmlsl_high_laneq_u16): Likewise.
15147         (vmlsl_high_laneq_u32): Likewise.
15148         (vmlal_high_laneq_u32): Likewise.
15149
15150 2021-02-03  Jonathan Wright  <jonathan.wright@arm.com>
15151
15152         * config/aarch64/aarch64-simd-builtins.def: Add
15153         [su]mlal_hi_lane[q] builtin generator macros.
15154         * config/aarch64/aarch64-simd.md
15155         (aarch64_<su>mlal_hi_lane<mode>_insn): Define.
15156         (aarch64_<su>mlal_hi_lane<mode>): Define.
15157         (aarch64_<su>mlal_hi_laneq<mode>_insn): Define.
15158         (aarch64_<su>mlal_hi_laneq<mode>): Define.
15159         * config/aarch64/arm_neon.h (vmlal_high_lane_s16): Use RTL
15160         builtin instead of inline asm.
15161         (vmlal_high_lane_s32): Likewise.
15162         (vmlal_high_lane_u16): Likewise.
15163         (vmlal_high_lane_u32): Likewise.
15164         (vmlal_high_laneq_s16): Likewise.
15165         (vmlal_high_laneq_s32): Likewise.
15166         (vmlal_high_laneq_u16): Likewise.
15167         (vmlal_high_laneq_u32): Likewise.
15168
15169 2021-02-03  Jonathan Wright  <jonathan.wright@arm.com>
15170
15171         * config/aarch64/aarch64-simd-builtins.def: Add [su]mlsl_hi_n
15172         builtin generator macros.
15173         * config/aarch64/aarch64-simd.md (aarch64_<su>mlsl_hi_n<mode>_insn):
15174         Define.
15175         (aarch64_<su>mlsl_hi_n<mode>): Define.
15176         * config/aarch64/arm_neon.h (vmlsl_high_n_s16): Use RTL builtin
15177         instead of inline asm.
15178         (vmlsl_high_n_s32): Likewise.
15179         (vmlsl_high_n_u16): Likewise.
15180         (vmlsl_high_n_u32): Likewise.
15181
15182 2021-02-03  Jonathan Wright  <jonathan.wright@arm.com>
15183
15184         * config/aarch64/aarch64-simd-builtins.def: Add [su]mlal_hi_n
15185         builtin generator macros.
15186         * config/aarch64/aarch64-simd.md (aarch64_<su>mlal_hi_n<mode>_insn):
15187         Define.
15188         (aarch64_<su>mlal_hi_n<mode>): Define.
15189         * config/aarch64/arm_neon.h (vmlal_high_n_s16): Use RTL builtin
15190         instead of inline asm.
15191         (vmlal_high_n_s32): Likewise.
15192         (vmlal_high_n_u16): Likewise.
15193         (vmlal_high_n_u32): Likewise.
15194
15195 2021-02-03  Jonathan Wright  <jonathan.wright@arm.com>
15196
15197         * config/aarch64/aarch64-simd-builtins.def: Add RTL builtin
15198         generator macros.
15199         * config/aarch64/aarch64-simd.md (*aarch64_<su>mlal_hi<mode>):
15200         Rename to...
15201         (aarch64_<su>mlal_hi<mode>_insn): This.
15202         (aarch64_<su>mlal_hi<mode>): Define.
15203         * config/aarch64/arm_neon.h (vmlal_high_s8): Use RTL builtin
15204         instead of inline asm.
15205         (vmlal_high_s16): Likewise.
15206         (vmlal_high_s32): Likewise.
15207         (vmlal_high_u8): Likewise.
15208         (vmlal_high_u16): Likewise.
15209         (vmlal_high_u32): Likewise.
15210
15211 2021-02-03  Ilya Leoshkevich  <iii@linux.ibm.com>
15212
15213         * lra-spills.c (remove_pseudos): Call lra_update_insn_recog_data()
15214         after calling alter_subreg() on a (mem).
15215
15216 2021-02-03  Martin Liska  <mliska@suse.cz>
15217
15218         PR lto/98912
15219         * lto-streamer-out.c (produce_lto_section): Fill up missing
15220         padding.
15221         * lto-streamer.h (struct lto_section): Add _padding field.
15222
15223 2021-02-03  Richard Biener  <rguenther@suse.de>
15224
15225         * lto-streamer.c (lto_get_section_name): Free temporary
15226         buffer.
15227         * tree-loop-distribution.c
15228         (loop_distribution::merge_dep_scc_partitions): Free edge data.
15229
15230 2021-02-03  Jakub Jelinek  <jakub@redhat.com>
15231
15232         PR middle-end/97487
15233         * ifcvt.c (noce_can_force_operand): New function.
15234         (noce_emit_move_insn): Use it.
15235         (noce_try_sign_mask): Likewise.  Formatting fix.
15236
15237 2021-02-03  Jakub Jelinek  <jakub@redhat.com>
15238
15239         PR middle-end/97971
15240         * lra-constraints.c (process_alt_operands): For inline asm, don't call
15241         fatal_insn, but instead return false.
15242
15243 2021-02-03  Jakub Jelinek  <jakub@redhat.com>
15244
15245         PR tree-optimization/98287
15246         * config/i386/mmx.md (<insn><mode>3): For shifts don't enable expander
15247         for V1DImode.
15248
15249 2021-02-03  Tamar Christina  <tamar.christina@arm.com>
15250
15251         PR tree-optimization/98928
15252         * tree-vect-loop.c (vect_analyze_loop_2): Change
15253         STMT_VINFO_SLP_VECT_ONLY to STMT_VINFO_SLP_VECT_ONLY_PATTERN.
15254         * tree-vect-slp-patterns.c (complex_pattern::build): Likewise.
15255         * tree-vectorizer.h (STMT_VINFO_SLP_VECT_ONLY_PATTERN): New.
15256         (class _stmt_vec_info): Add slp_vect_pattern_only_p.
15257
15258 2021-02-02  Richard Biener  <rguenther@suse.de>
15259
15260         * gimple-loop-interchange.cc (prepare_data_references):
15261         Release vectors.
15262         * gimple-loop-jam.c (tree_loop_unroll_and_jam): Likewise.
15263         * tree-ssa-loop-im.c (hoist_memory_references): Likewise.
15264         * tree-vect-stmts.c (vectorizable_condition): Do not
15265         allocate vectors.
15266         (vectorizable_comparison): Likewise.
15267
15268 2021-02-02  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
15269
15270         * config/aarch64/aarch64-simd-builtins.def (ursqrte): Define builtin.
15271         * config/aarch64/aarch64-simd.md (aarch64_ursqrte<mode>): New pattern.
15272         * config/aarch64/arm_neon.h (vrsqrte_u32): Reimplement using builtin.
15273         (vrsqrteq_u32): Likewise.
15274
15275 2021-02-02  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
15276
15277         * config/aarch64/aarch64-simd-builtins.def (sqxtun2): Define builtin.
15278         * config/aarch64/aarch64-simd.md (aarch64_sqxtun2<mode>_le): Define.
15279         (aarch64_sqxtun2<mode>_be): Likewise.
15280         (aarch64_sqxtun2<mode>): Likewise.
15281         * config/aarch64/arm_neon.h (vqmovun_high_s16): Reimplement using builtin.
15282         (vqmovun_high_s32): Likewise.
15283         (vqmovun_high_s64): Likewise.
15284         * config/aarch64/iterators.md (UNSPEC_SQXTUN2): Define.
15285
15286 2021-02-02  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
15287
15288         * config/aarch64/aarch64-simd-builtins.def (bfdot_lane, bfdot_laneq): Use
15289         AUTO_FP flags.
15290         (bfmlalb_lane, bfmlalt_lane, bfmlalb_lane_q, bfmlalt_lane_q): Use FP flags.
15291
15292 2021-02-02  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
15293
15294         * config/aarch64/aarch64-simd-builtins.def (fcmla_lane0, fcmla_lane90,
15295         fcmla_lane180, fcmla_lane270, fcmlaq_lane0, fcmlaq_lane90, fcmlaq_lane180,
15296         fcmlaq_lane270, scvtf, ucvtf, fcvtzs, fcvtzu, scvtfsi, scvtfdi, ucvtfsi,
15297         ucvtfdi, fcvtzshf, fcvtzuhf, fmlal_lane_low, fmlsl_lane_low,
15298         fmlal_laneq_low, fmlsl_laneq_low, fmlalq_lane_low, fmlslq_lane_low,
15299         fmlalq_laneq_low, fmlslq_laneq_low, fmlal_lane_high, fmlsl_lane_high,
15300         fmlal_laneq_high, fmlsl_laneq_high, fmlalq_lane_high, fmlslq_lane_high,
15301         fmlalq_laneq_high, fmlslq_laneq_high): Use FP flags.
15302
15303 2021-02-02  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
15304
15305         * config/aarch64/aarch64-builtins.c (FLAG_LOAD): Define.
15306         * config/aarch64/aarch64-simd-builtins.def (ld1x2, ld2, ld3, ld4, ld2r,
15307         ld3r, ld4r, ld1, ld1x3, ld1x4): Use LOAD flags.
15308
15309 2021-02-02  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
15310
15311         * config/aarch64/aarch64-simd-builtins.def (combine, zip1, zip2,
15312         uzp1, uzp2, trn1, trn2, simd_bsl): Use AUTO_FP flags.
15313
15314 2021-02-02  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
15315
15316         * config/aarch64/aarch64-simd-builtins.def (clrsb, clz, ctz, popcount,
15317         vec_smult_lane_, vec_smlal_lane_, vec_smult_laneq_, vec_smlal_laneq_,
15318         vec_umult_lane_, vec_umlal_lane_, vec_umult_laneq_, vec_umlal_laneq_,
15319         ashl, sshl, ushl, srshl, urshl, sdot_lane, udot_lane, sdot_laneq,
15320         udot_laneq, usdot_lane, usdot_laneq, sudot_lane, sudot_laneq, ashr,
15321         ashr_simd, lshr, lshr_simd, srshr_n, urshr_n, ssra_n, usra_n, srsra_n,
15322         ursra_n, sshll_n, ushll_n, sshll2_n, ushll2_n, ssri_n, usri_n, ssli_n,
15323         ssli_n, usli_n, bswap, rbit, simd_bsl, eor3q, rax1q, xarq, bcaxq): Use
15324         NONE builtin flags.
15325
15326 2021-02-02  Jakub Jelinek  <jakub@redhat.com>
15327
15328         PR tree-optimization/98848
15329         * tree-vect-patterns.c (vect_recog_over_widening_pattern): Punt if
15330         STMT_VINFO_DEF_TYPE (last_stmt_info) is vect_reduction_def.
15331
15332 2021-02-02  Kito Cheng  <kito.cheng@sifive.com>
15333
15334         PR target/98743
15335         * expr.c: Check mode before calling store_expr.
15336
15337 2021-02-02  Christophe Lyon  <christophe.lyon@linaro.org>
15338
15339         * config/arm/iterators.md (supf): Remove VORNQ_S and VORNQ_U.
15340         (VORNQ): Remove.
15341         * config/arm/mve.md (mve_vornq_s<mode>): New entry for vorn
15342         instruction using expression ior.
15343         (mve_vornq_u<mode>): New expander.
15344         (mve_vornq_f<mode>): Use ior code instead of unspec.
15345         * config/arm/unspecs.md (VORNQ_S, VORNQ_U, VORNQ_F): Remove.
15346
15347 2021-02-02  Alexandre Oliva  <oliva@adacore.com>
15348
15349         * tree-nested.c (convert_nonlocal_reference_op): Move
15350         current_function_decl restore after re-gimplification.
15351         (convert_local_reference_op): Likewise.
15352
15353 2021-02-01  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
15354
15355         * config/aarch64/aarch64-simd-builtins.def (rshrn, rshrn2):
15356         Define builtins.
15357         * config/aarch64/aarch64-simd.md (aarch64_rshrn<mode>_insn_le):
15358         Define.
15359         (aarch64_rshrn<mode>_insn_be): Likewise.
15360         (aarch64_rshrn<mode>): Likewise.
15361         (aarch64_rshrn2<mode>_insn_le): Likewise.
15362         (aarch64_rshrn2<mode>_insn_be): Likewise.
15363         (aarch64_rshrn2<mode>): Likewise.
15364         * config/aarch64/aarch64.md (unspec): Add UNSPEC_RSHRN.
15365         * config/aarch64/arm_neon.h (vrshrn_high_n_s16): Reimplement
15366         using builtin.
15367         (vrshrn_high_n_s32): Likewise.
15368         (vrshrn_high_n_s64): Likewise.
15369         (vrshrn_high_n_u16): Likewise.
15370         (vrshrn_high_n_u32): Likewise.
15371         (vrshrn_high_n_u64): Likewise.
15372         (vrshrn_n_s16): Likewise.
15373         (vrshrn_n_s32): Likewise.
15374         (vrshrn_n_s64): Likewise.
15375         (vrshrn_n_u16): Likewise.
15376         (vrshrn_n_u32): Likewise.
15377         (vrshrn_n_u64): Likewise.
15378
15379 2021-02-01  Sergei Trofimovich  <siarheit@google.com>
15380
15381         PR tree-optimization/98499
15382         * ipa-modref.c (analyze_ssa_name_flags): treat RVO
15383         conservatively and assume all possible side-effects.
15384
15385 2021-02-01  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
15386
15387         * config/aarch64/aarch64-simd-builtins.def (vec_unpacks_hi,
15388         vec_unpacku_hi_): Define builtins.
15389         * config/aarch64/arm_neon.h (vmovl_high_s8): Reimplement using
15390         builtin.
15391         (vmovl_high_s16): Likewise.
15392         (vmovl_high_s32): Likewise.
15393         (vmovl_high_u8): Likewise.
15394         (vmovl_high_u16): Likewise.
15395         (vmovl_high_u32): Likewise.
15396
15397 2021-02-01  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
15398
15399         * config/aarch64/aarch64-simd-builtins.def (sabdl, uabdl):
15400         Define builtins.
15401         * config/aarch64/aarch64-simd.md (aarch64_<sur>abdl<mode>): New
15402         pattern.
15403         * config/aarch64/aarch64.md (unspec): Define UNSPEC_SABDL,
15404         UNSPEC_UABDL.
15405         * config/aarch64/arm_neon.h (vabdl_s8): Reimplemet using
15406         builtin.
15407         (vabdl_s16): Likewise.
15408         (vabdl_s32): Likewise.
15409         (vabdl_u8): Likewise.
15410         (vabdl_u16): Likewise.
15411         (vabdl_u32): Likewise.
15412         * config/aarch64/iterators.md (ABDL): New int iterator.
15413         (sur): Handle UNSPEC_SABDL, UNSPEC_UABDL.
15414
15415 2021-02-01  Martin Sebor  <msebor@redhat.com>
15416
15417         * tree.h (BLOCK_VARS): Add comment.
15418         (BLOCK_SUBBLOCKS): Same.
15419         (BLOCK_SUPERCONTEXT): Same.
15420         (BLOCK_ABSTRACT_ORIGIN): Same.
15421         (inlined_function_outer_scope_p): Same.
15422
15423 2021-02-01  Martin Sebor  <msebor@redhat.com>
15424
15425         PR middle-end/97172
15426         * attribs.c (attr_access::free_lang_data): Define new function.
15427         * attribs.h (attr_access::free_lang_data): Declare new function.
15428
15429 2021-02-01  Richard Biener  <rguenther@suse.de>
15430
15431         * vec.h (auto_vec::auto_vec): Add memory stat parameters
15432         and pass them on.
15433         * bitmap.h (auto_bitmap::auto_bitmap): Likewise.
15434
15435 2021-02-01  Tamar Christina  <tamar.christina@arm.com>
15436
15437         * config/aarch64/aarch64-simd.md (aarch64_<su>mlal_n<mode>,
15438         aarch64_<su>mlsl<mode>, aarch64_<su>mlsl_n<mode>): Flip mult operands.
15439
15440 2021-02-01  Richard Biener  <rguenther@suse.de>
15441
15442         PR rtl-optimization/98863
15443         * config/i386/i386-features.c (convert_scalars_to_vector):
15444         Set DF_RD_PRUNE_DEAD_DEFS.
15445
15446 2021-01-31  Eric Botcazou  <ebotcazou@adacore.com>
15447
15448         * system.h (SIZE_MAX): Define if not already defined.
15449
15450 2021-01-30  Aaron Sawdey  <acsawdey@linux.ibm.com>
15451
15452         * config/rs6000/genfusion.pl (gen_2logical): New function to
15453         generate patterns for logical-logical fusion.
15454         * config/rs6000/fusion.md: Regenerated patterns.
15455         * config/rs6000/rs6000-cpus.def: Add
15456         OPTION_MASK_P10_FUSION_2LOGICAL.
15457         * config/rs6000/rs6000.c (rs6000_option_override_internal):
15458         Enable logical-logical fusion for p10.
15459         * config/rs6000/rs6000.opt: Add -mpower10-fusion-2logical.
15460
15461 2021-01-30  David Edelsohn  <dje.gcc@gmail.com>
15462
15463         * config/rs6000/rs6000.opt: Add periods to new AIX options.
15464
15465 2021-01-30  David Edelsohn  <dje.gcc@gmail.com>
15466
15467         * config/rs6000/rs6000.opt (mabi=vec-extabi): New.
15468         (mabi=vec-default): New.
15469         * config/rs6000/rs6000-c.c (rs6000_target_modify_macros): Define
15470         __EXTABI__ for AIX Vector extended ABI.
15471         * config/rs6000/rs6000.c (rs6000_debug_reg_global): Print AIX Vector
15472         extabi info.
15473         (conditional_register_usage): If AIX vec_extabi enabled, vs20-vs31
15474         are non-volatile.
15475         * doc/invoke.texi (PowerPC mabi): Add AIX vec-extabi and vec-default.
15476
15477 2021-01-30  Jakub Jelinek  <jakub@redhat.com>
15478
15479         * config/i386/i386-features.c (remove_partial_avx_dependency): Clear
15480         DF_DEFER_INSN_RESCAN after calling df_process_deferred_rescans.
15481
15482 2021-01-29  Vladimir N. Makarov  <vmakarov@redhat.com>
15483
15484         PR target/97701
15485         * lra-constraints.c (in_class_p): Don't narrow class only for REG
15486         or MEM.
15487
15488 2021-01-29  Will Schmidt  <will_schmidt@vnet.ibm.com>
15489
15490         * config/rs6000/rs6000-call.c (rs6000_expand_binup_builtin): Add
15491         clauses for CODE_FOR_vsx_xvcvuxddp_scale and
15492         CODE_FOR_vsx_xvcvsxddp_scale to the parameter checking code.
15493
15494 2021-01-29  Andrew MacLeod  <amacleod@redhat.com>
15495
15496         PR tree-optimization/98866
15497         * gimple-range-gori.h (gori_compute:set_range_invariant): New.
15498         * gimple-range-gori.cc (gori_map::set_range_invariant): New.
15499         (gori_map::m_maybe_invariant): Rename from all_outgoing.
15500         (gori_map::gori_map): Rename all_outgoing to m_maybe_invariant.
15501         (gori_map::is_export_p): Ditto.
15502         (gori_map::calculate_gori): Ditto.
15503         (gori_compute::set_range_invariant): New.
15504         * gimple-range.cc (gimple_ranger::range_of_stmt): Set range
15505         invariant for pointers evaluating to [1, +INF].
15506
15507 2021-01-29  Richard Biener  <rguenther@suse.de>
15508
15509         PR rtl-optimization/98863
15510         * config/i386/i386-features.c (remove_partial_avx_dependency):
15511         Do not perform DF analysis.
15512         (pass_data_remove_partial_avx_dependency): Remove
15513         TODO_df_finish.
15514
15515 2021-01-29  Jonathan Wright  <jonathan.wright@arm.com>
15516
15517         * config/aarch64/aarch64-simd-builtins.def: Add [su]mull_n
15518         builtin generator macros.
15519         * config/aarch64/aarch64-simd.md (aarch64_<su>mull_n<mode>):
15520         Define.
15521         * config/aarch64/arm_neon.h (vmull_n_s16): Use RTL builtin
15522         instead of inline asm.
15523         (vmull_n_s32): Likewise.
15524         (vmull_n_u16): Likewise.
15525         (vmull_n_u32): Likewise.
15526
15527 2021-01-29  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
15528
15529         * config/aarch64/aarch64-simd-builtins.def (sabdl2, uabdl2):
15530         Define builtins.
15531         * config/aarch64/aarch64-simd.md (aarch64_<sur>abdl2<mode>_3):
15532         Rename to...
15533         (aarch64_<sur>abdl2<mode>): ... This.
15534         (<sur>sadv16qi): Adjust use of above.
15535         * config/aarch64/arm_neon.h (vabdl_high_s8): Reimplement using
15536         builtin.
15537         (vabdl_high_s16): Likewise.
15538         (vabdl_high_s32): Likewise.
15539         (vabdl_high_u8): Likewise.
15540         (vabdl_high_u16): Likewise.
15541         (vabdl_high_u32): Likewise.
15542
15543 2021-01-29  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
15544
15545         * config/aarch64/aarch64-simd-builtins.def (sabal2): Define
15546         builtin.
15547         (uabal2): Likewise.
15548         * config/aarch64/aarch64-simd.md (aarch64_<sur>abal2<mode>): New
15549         pattern.
15550         * config/aarch64/aarch64.md (unspec): Add UNSPEC_SABAL2 and
15551         UNSPEC_UABAL2.
15552         * config/aarch64/arm_neon.h (vabal_high_s8): Reimplement using
15553         builtin.
15554         (vabal_high_s16): Likewise.
15555         (vabal_high_s32): Likewise.
15556         (vabal_high_u8): Likewise.
15557         (vabal_high_u16): Likewise.
15558         (vabal_high_u32): Likewise.
15559         * config/aarch64/iterators.md (ABAL2): New mode iterator.
15560         (sur): Handle UNSPEC_SABAL2, UNSPEC_UABAL2.
15561
15562 2021-01-29  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
15563
15564         * config/aarch64/aarch64-simd-builtins.def (sabal): Define
15565         builtin.
15566         (uabal): Likewise.
15567         * config/aarch64/aarch64-simd.md (aarch64_<sur>abal<mode>_4):
15568         Rename to...
15569         (aarch64_<sur>abal<mode>): ... This
15570         (<sur>sadv16qi): Adust use of the above.
15571         * config/aarch64/arm_neon.h (vabal_s8): Reimplement using
15572         builtin.
15573         (vabal_s16): Likewise.
15574         (vabal_s32): Likewise.
15575         (vabal_u8): Likewise.
15576         (vabal_u16): Likewise.
15577         (vabal_u32): Likewise.
15578
15579 2021-01-29  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
15580
15581         * config/aarch64/aarch64-simd-builtins.def (saddlv, uaddlv):
15582         Define builtins.
15583         * config/aarch64/aarch64-simd.md (aarch64_<su>addlv<mode>):
15584         Define.
15585         * config/aarch64/arm_neon.h (vaddlv_s8): Reimplement using
15586         builtin.
15587         (vaddlv_s16): Likewise.
15588         (vaddlv_u8): Likewise.
15589         (vaddlv_u16): Likewise.
15590         (vaddlvq_s8): Likewise.
15591         (vaddlvq_s16): Likewise.
15592         (vaddlvq_s32): Likewise.
15593         (vaddlvq_u8): Likewise.
15594         (vaddlvq_u16): Likewise.
15595         (vaddlvq_u32): Likewise.
15596         (vaddlv_s32): Likewise.
15597         (vaddlv_u32): Likewise.
15598         * config/aarch64/iterators.md (VDQV_L): New mode iterator.
15599         (unspec): Add UNSPEC_SADDLV, UNSPEC_UADDLV.
15600         (Vwstype): New mode attribute.
15601         (Vwsuf): Likewise.
15602         (VWIDE_S): Likewise.
15603         (USADDLV): New int iterator.
15604         (su): Handle UNSPEC_SADDLV, UNSPEC_UADDLV.
15605
15606 2021-01-29  Jonathan Wright  <jonathan.wright@arm.com>
15607
15608         * config/aarch64/aarch64-simd-builtins.def: Add [su]mlsl_lane[q]
15609         builtin generator macros.
15610         * config/aarch64/aarch64-simd.md (aarch64_vec_<su>mlsl_lane<Qlane>):
15611         Define.
15612         * config/aarch64/arm_neon.h (vmlsl_lane_s16): Use RTL builtin
15613         instead of inline asm.
15614         (vmlsl_lane_s32): Likewise.
15615         (vmlsl_lane_u16): Likewise.
15616         (vmlsl_lane_u32): Likewise.
15617         (vmlsl_laneq_s16): Likewise.
15618         (vmlsl_laneq_s32): Likewise.
15619         (vmlsl_laneq_u16): Likewise.
15620         (vmlsl_laneq_u32): Likewise.
15621
15622 2021-01-29  Richard Biener  <rguenther@suse.de>
15623
15624         * doc/invoke.texi (--param max-gcse-memory): Document unit
15625         of size.
15626         * gcse.c (gcse_or_cprop_is_too_expensive): Adjust.
15627         * params.opt (--param max-gcse-memory): Adjust default and
15628         document unit of size.
15629
15630 2021-01-29  Richard Biener  <rguenther@suse.de>
15631
15632         PR rtl-optimization/98863
15633         * gcse.c (gcse_or_cprop_is_too_expensive): Use unsigned
15634         HOST_WIDE_INT for the memory estimate.
15635
15636 2021-01-29  Bin Cheng  <bin.cheng@linux.alibaba.com>
15637             Richard Biener  <rguenther@suse.de>
15638
15639         PR tree-optimization/97627
15640         * tree-ssa-loop-niter.c (number_of_iterations_exit_assumptions):
15641         Do not analyze fake edges.
15642
15643 2021-01-29  Richard Biener  <rguenther@suse.de>
15644
15645         PR rtl-optimization/98144
15646         * df.h (df_mir_bb_info): Add con_visited member.
15647         * df-problems.c (df_mir_alloc): Initialize con_visited,
15648         do not fully populate IN and OUT.
15649         (df_mir_reset): Likewise.
15650         (df_mir_confluence_0): Set con_visited.
15651         (df_mir_confluence_n): Properly handle implicitely
15652         fully populated IN and OUT as designated by con_visited
15653         and update con_visited accordingly.
15654
15655 2021-01-29  Jakub Jelinek  <jakub@redhat.com>
15656
15657         PR target/98849
15658         * config/arm/vec-common.md (mve_vshlq_<supf><mode>,
15659         vashl<mode>3, vashr<mode>3, vlshr<mode>3): Add
15660         && !TARGET_REALLY_IWMMXT to conditions.
15661
15662 2021-01-29  Jakub Jelinek  <jakub@redhat.com>
15663
15664         PR debug/98331
15665         * cfgbuild.c (find_bb_boundaries): Reset debug_insn when seeing
15666         a BARRIER.
15667
15668 2021-01-28  Marek Polacek  <polacek@redhat.com>
15669
15670         PR c++/94775
15671         * stor-layout.c (finalize_type_size): If we reset TYPE_USER_ALIGN in
15672         the main variant, maybe reset it in its variants too.
15673         * tree.c (check_base_type): Return true only if TYPE_USER_ALIGN match.
15674         (check_aligned_type): Check if TYPE_USER_ALIGN match.
15675
15676 2021-01-28  Christophe Lyon  <christophe.lyon@linaro.org>
15677
15678         PR target/98730
15679         * config/arm/arm.c (arm_rtx_costs_internal): Adjust cost of vector
15680         of constant zero for comparisons.
15681
15682 2021-01-28  Michael Meissner  <meissner@linux.ibm.com>
15683
15684         * config/rs6000/rs6000.c (rs6000_mangle_decl_assembler_name): Add
15685         support for mapping built-in function names for long double
15686         built-in functions if long double is IEEE 128-bit.
15687
15688 2021-01-28  Jonathan Wright  <jonathan.wright@arm.com>
15689
15690         * config/aarch64/aarch64-simd-builtins.def: Add [su]mlsl_n
15691         builtin generator macros.
15692         * config/aarch64/aarch64-simd.md (aarch64_<su>mlsl_n<mode>):
15693         Define.
15694         * config/aarch64/arm_neon.h (vmlsl_n_s16): Use RTL builtin
15695         instead of inline asm.
15696         (vmlsl_n_s32): Likewise.
15697         (vmlsl_n_u16): Likewise.
15698         (vmlsl_n_u32): Likewise.
15699
15700 2021-01-28  Jonathan Wright  <jonathan.wright@arm.com>
15701
15702         * config/aarch64/aarch64-simd-builtins.def: Add [su]mlal_n
15703         builtin generator macros.
15704         * config/aarch64/aarch64-simd.md (aarch64_<su>mlal_n<mode>):
15705         Define.
15706         * config/aarch64/arm_neon.h (vmlal_n_s16): Use RTL builtin
15707         instead of inline asm.
15708         (vmlal_n_s32): Likewise.
15709         (vmlal_n_u16): Likewise.
15710         (vmlal_n_u32): Likewise.
15711
15712 2021-01-28  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
15713
15714         * config/aarch64/aarch64-simd-builtins.def (shrn2): Define
15715         builtin.
15716         * config/aarch64/aarch64-simd.md (aarch64_shrn2<mode>_insn_le):
15717         Define.
15718         (aarch64_shrn2<mode>_insn_be): Likewise.
15719         (aarch64_shrn2<mode>): Likewise.
15720         * config/aarch64/arm_neon.h (vshrn_high_n_s16): Reimlplement
15721         using builtins.
15722         (vshrn_high_n_s32): Likewise.
15723         (vshrn_high_n_s64): Likewise.
15724         (vshrn_high_n_u16): Likewise.
15725         (vshrn_high_n_u32): Likewise.
15726         (vshrn_high_n_u64): Likewise.
15727
15728 2021-01-28  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
15729
15730         * config/aarch64/aarch64-simd-builtins.def (shrn): Define
15731         builtin.
15732         * config/aarch64/aarch64-simd.md (aarch64_shrn<mode>_insn_le):
15733         Define.
15734         (aarch64_shrn<mode>_insn_be): Likewise.
15735         (aarch64_shrn<mode>): Likewise.
15736         * config/aarch64/arm_neon.h (vshrn_n_s16): Reimplement using
15737         builtins.
15738         (vshrn_n_s32): Likewise.
15739         (vshrn_n_s64): Likewise.
15740         (vshrn_n_u16): Likewise.
15741         (vshrn_n_u32): Likewise.
15742         (vshrn_n_u64): Likewise.
15743         * config/aarch64/iterators.md (vn_mode): New mode attribute.
15744
15745 2021-01-28  Richard Biener  <rguenther@suse.de>
15746
15747         PR rtl-optimization/80960
15748         * dse.c (check_mem_read_rtx): Call get_addr on the
15749         offsetted address.
15750
15751 2021-01-28  Xionghu Luo  <luoxhu@linux.ibm.com>
15752             David Edelsohn  <dje.gcc@gmail.com>
15753
15754         PR target/98799
15755         * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin):
15756         Don't generate VIEW_CONVERT_EXPR for fcode ALTIVEC_BUILTIN_VEC_INSERT
15757         when -m32.
15758         * config/rs6000/rs6000-protos.h (rs6000_expand_vector_set_var):
15759         Delete.
15760         * config/rs6000/rs6000.c (rs6000_expand_vector_set): Remove the
15761         wrapper call rs6000_expand_vector_set_var for cleanup.  Call
15762         rs6000_expand_vector_set_var_p9 and rs6000_expand_vector_set_var_p8
15763         directly.
15764         (rs6000_expand_vector_set_var): Delete.
15765         (rs6000_expand_vector_set_var_p9): Make static.
15766         (rs6000_expand_vector_set_var_p8): Make static.
15767
15768 2021-01-28  Xing GUO  <higuoxing@gmail.com>
15769
15770         * common/config/riscv/riscv-common.c
15771         (riscv_subset_list::parsing_subset_version): Fix -march option parsing
15772         when `p` extension exists.
15773
15774 2021-01-27  Vladimir N. Makarov  <vmakarov@redhat.com>
15775
15776         PR rtl-optimization/97684
15777         * ira.c (ira): Call ira_set_pseudo_classes before
15778         update_equiv_regs when it is necessary.
15779
15780 2021-01-27  Jakub Jelinek  <jakub@redhat.com>
15781
15782         PR target/98853
15783         * config/aarch64/aarch64.md (*aarch64_bfxilsi_uxtw): Use
15784         %w0, %w1 and %2 instead of %0, %1 and %2.
15785
15786 2021-01-27  Aaron Sawdey  <acsawdey@linux.ibm.com>
15787
15788         * config/rs6000/genfusion.pl: New script to generate
15789         define_insn_and_split patterns so combine can arrange fused
15790         instructions next to each other.
15791         * config/rs6000/fusion.md: New file, generated fused instruction
15792         patterns for combine.
15793         * config/rs6000/predicates.md (const_m1_to_1_operand): New predicate.
15794         (non_update_memory_operand): New predicate.
15795         * config/rs6000/rs6000-cpus.def: Add OPTION_MASK_P10_FUSION and
15796         OPTION_MASK_P10_FUSION_LD_CMPI to ISA_3_1_MASKS_SERVER and
15797         POWERPC_MASKS.
15798         * config/rs6000/rs6000-protos.h (address_is_non_pfx_d_or_x): Add
15799         prototype.
15800         * config/rs6000/rs6000.c (rs6000_option_override_internal):
15801         Automatically set OPTION_MASK_P10_FUSION and
15802         OPTION_MASK_P10_FUSION_LD_CMPI if target is power10.
15803         (rs600_opt_masks): Allow -mpower10-fusion
15804         in function attributes.
15805         (address_is_non_pfx_d_or_x): New function.
15806         * config/rs6000/rs6000.h: Add MASK_P10_FUSION.
15807         * config/rs6000/rs6000.md: Include fusion.md.
15808         * config/rs6000/rs6000.opt: Add -mpower10-fusion
15809         and -mpower10-fusion-ld-cmpi.
15810         * config/rs6000/t-rs6000: Add dependencies involving fusion.md.
15811
15812 2021-01-27  Jonathan Wright  <jonathan.wright@arm.com>
15813
15814         * config/aarch64/aarch64-simd-builtins.def: Add [su]mlal
15815         builtin generator macros.
15816         * config/aarch64/aarch64-simd.md (*aarch64_<su>mlal<mode>):
15817         Rename to...
15818         (aarch64_<su>mlal<mode>): This.
15819         * config/aarch64/arm_neon.h (vmlal_s8): Use RTL builtin
15820         instead of inline asm.
15821         (vmlal_s16): Likewise.
15822         (vmlal_s32): Likewise.
15823         (vmlal_u8): Likewise.
15824         (vmlal_u16): Likewise.
15825         (vmlal_u32): Likewise.
15826
15827 2021-01-27  Richard Biener  <rguenther@suse.de>
15828
15829         PR tree-optimization/98854
15830         * tree-vect-slp.c (vect_build_slp_tree_2): Also build
15831         PHIs from scalars when the number of CTORs matches the
15832         number of children.
15833
15834 2021-01-27  Jonathan Wright  <jonathan.wright@arm.com>
15835
15836         * config/aarch64/aarch64-simd-builtins.def: Add mls_n builtin
15837         generator macro.
15838         * config/aarch64/aarch64-simd.md (*aarch64_mls_elt_merge<mode>):
15839         Rename to...
15840         (aarch64_mls_n<mode>): This.
15841         * config/aarch64/arm_neon.h (vmls_n_s16): Use RTL builtin
15842         instead of asm.
15843         (vmls_n_s32): Likewise.
15844         (vmls_n_u16): Likewise.
15845         (vmls_n_u32): Likewise.
15846         (vmlsq_n_s16): Likewise.
15847         (vmlsq_n_s32): Likewise.
15848         (vmlsq_n_u16): Likewise.
15849         (vmlsq_n_u32): Likewise.
15850
15851 2021-01-27  Jonathan Wright  <jonathan.wright@arm.com>
15852
15853         * config/aarch64/aarch64-simd-builtins.def: Add mls builtin
15854         generator macro.
15855         * config/aarch64/arm_neon.h (vmls_s8): Use RTL builtin rather
15856         than asm.
15857         (vmls_s16): Likewise.
15858         (vmls_s32): Likewise.
15859         (vmls_u8): Likewise.
15860         (vmls_u16): Likewise.
15861         (vmls_u32): Likewise.
15862         (vmlsq_s8): Likewise.
15863         (vmlsq_s16): Likewise.
15864         (vmlsq_s32): Likewise.
15865         (vmlsq_u8): Likewise.
15866         (vmlsq_u16): Likewise.
15867         (vmlsq_u32): Likewise.
15868
15869 2021-01-27  Jonathan Wright  <jonathan.wright@arm.com>
15870
15871         * config/aarch64/aarch64-simd-builtins.def: Add mla_n builtin
15872         generator macro.
15873         * config/aarch64/aarch64-simd.md (*aarch64_mla_elt_merge<mode>):
15874         Rename to...
15875         (aarch64_mla_n<mode>): This.
15876         * config/aarch64/arm_neon.h (vmla_n_s16): Use RTL builtin
15877         instead of asm.
15878         (vmla_n_s32): Likewise.
15879         (vmla_n_u16): Likewise.
15880         (vmla_n_u32): Likewise.
15881         (vmlaq_n_s16): Likewise.
15882         (vmlaq_n_s32): Likewise.
15883         (vmlaq_n_u16): Likewise.
15884         (vmlaq_n_u32): Likewise.
15885
15886 2021-01-27  liuhongt  <hongtao.liu@intel.com>
15887
15888         PR target/98833
15889         * config/i386/sse.md (sse2_gt<mode>3): Drop !TARGET_XOP in condition.
15890         (*sse2_eq<mode>3): Ditto.
15891
15892 2021-01-27  Jakub Jelinek  <jakub@redhat.com>
15893
15894         * tree-pass.h (PROP_trees): Rename to ...
15895         (PROP_gimple): ... this.
15896         * cfgexpand.c (pass_data_expand): Replace PROP_trees with PROP_gimple.
15897         * passes.c (execute_function_dump, execute_function_todo,
15898         execute_one_ipa_transform_pass, execute_one_pass): Likewise.
15899         * varpool.c (ctor_for_folding): Likewise.
15900
15901 2021-01-27  Jakub Jelinek  <jakub@redhat.com>
15902
15903         PR tree-optimization/97260
15904         * varpool.c: Include tree-pass.h.
15905         (ctor_for_folding): In GENERIC return DECL_INITIAL for TREE_READONLY
15906         non-TREE_SIDE_EFFECTS automatic variables.
15907
15908 2021-01-26  Paul Fee  <paul.f.fee@gmail.com>
15909
15910         * doc/cpp.texi (__cplusplus): Document value for -std=c++23
15911         or -std=gnu++23.
15912         * doc/invoke.texi: Document -std=c++23 and -std=gnu++23.
15913         * dwarf2out.c (highest_c_language): Recognise C++20 and C++23.
15914         (gen_compile_unit_die): Recognise C++23.
15915
15916 2021-01-26  Jakub Jelinek  <jakub@redhat.com>
15917
15918         PR bootstrap/98839
15919         * dwarf2asm.c (dw2_assemble_integer): Cast DWARF2_ADDR_SIZE to int
15920         in comparison.
15921
15922 2021-01-26  Jakub Jelinek  <jakub@redhat.com>
15923
15924         PR target/98681
15925         * config/aarch64/aarch64.c (aarch64_mask_and_shift_for_ubfiz_p):
15926         Use UINTVAL (shft_amnt) and UINTVAL (mask) instead of INTVAL (shft_amnt)
15927         and INTVAL (mask).  Add && INTVAL (mask) > 0 condition.
15928
15929 2021-01-26  Richard Biener  <rguenther@suse.de>
15930
15931         * gimple-pretty-print.c (dump_binary_rhs): Handle
15932         VEC_WIDEN_{PLUS,MINUS}_{LO,HI}_EXPR.
15933
15934 2021-01-26  Richard Biener  <rguenther@suse.de>
15935
15936         PR middle-end/98726
15937         * tree.h (vector_cst_int_elt): Remove.
15938         * tree.c (vector_cst_int_elt): Use poly_wide_int for computations,
15939         make static.
15940
15941 2021-01-26  Andrew Stubbs  <ams@codesourcery.com>
15942
15943         * config/gcn/gcn.c (gcn_expand_reduc_scalar): Use move instructions
15944         for V64DFmode min/max reductions.
15945
15946 2021-01-26  Jakub Jelinek  <jakub@redhat.com>
15947
15948         * dwarf2asm.c (dw2_assemble_integer): Handle size twice as large
15949         as DWARF2_ADDR_SIZE if x is not a scalar int by emitting it as
15950         two halves, one with x and the other with const0_rtx, ordered
15951         depending on endianity.
15952
15953 2021-01-26  Alexandre Oliva  <oliva@adacore.com>
15954
15955         * gimplify.c (gimplify_decl_expr): Skip asan marking calls for
15956         temporaries not seen in binding block, and not about to be
15957         added as gimple variables.
15958
15959 2021-01-25  Martin Sebor  <msebor@redhat.com>
15960
15961         PR c++/98646
15962         * tree-ssa-ccp.c (pass_post_ipa_warn::execute): Adjust warning text.
15963
15964 2021-01-25  Martin Liska  <mliska@suse.cz>
15965
15966         * value-prof.c (get_nth_most_common_value): Use %s instead
15967         of %qs string.
15968
15969 2021-01-25  Jakub Jelinek  <jakub@redhat.com>
15970
15971         PR debug/98811
15972         * configure.ac (HAVE_AS_GDWARF_5_DEBUG_FLAG): Only define if
15973         readelf -wi is able to read the emitted .debug_info back.
15974         * configure: Regenerated.
15975
15976 2021-01-25  Martin Liska  <mliska@suse.cz>
15977
15978         PR gcov-profile/98739
15979         * common.opt: Add missing sign symbol.
15980         * value-prof.c (get_nth_most_common_value): Restore handling
15981         of PROFILE_REPRODUCIBILITY_PARALLEL_RUNS and
15982         PROFILE_REPRODUCIBILITY_MULTITHREADED.
15983
15984 2021-01-25  Richard Biener  <rguenther@suse.de>
15985
15986         PR middle-end/98807
15987         * tree.c (vector_element_bits): Always use precision of
15988         the element type for boolean vectors.
15989
15990 2021-01-25  Sebastian Huber  <sebastian.huber@embedded-brains.de>
15991
15992         * config/rtems.h (STARTFILE_SPEC): Remove qnolinkcmds.
15993         (ENDFILE_SPEC): Evaluate qnolinkcmds.
15994
15995 2021-01-25  Sebastian Huber  <sebastian.huber@embedded-brains.de>
15996
15997         * config/rtems.h (STARTFILE_SPEC): Remove nostdlib and
15998         nostartfiles handling since this is already done by
15999         LINK_COMMAND_SPEC.  Evaluate qnolinkcmds.
16000         (ENDFILE_SPEC): Remove nostdlib and nostartfiles handling since this
16001         is already done by LINK_COMMAND_SPEC.
16002         (LIB_SPECS): Remove nostdlib and nodefaultlibs handling since
16003         this is already done by LINK_COMMAND_SPEC.  Remove qnolinkcmds
16004         evaluation.
16005
16006 2021-01-25  Jakub Jelinek  <jakub@redhat.com>
16007
16008         PR testsuite/98771
16009         * fold-const-call.c (host_size_t_cst_p): Renamed to ...
16010         (size_t_cst_p): ... this.  Check and store unsigned HOST_WIDE_INT
16011         value rather than host size_t.
16012         (fold_const_call): Change type of s2 from size_t to
16013         unsigned HOST_WIDE_INT.  Use size_t_cst_p instead of
16014         host_size_t_cst_p.  For strncmp calls, pass MIN (s2, SIZE_MAX)
16015         instead of s2 as last argument.
16016
16017 2021-01-25  Tamar Christina  <tamar.christina@arm.com>
16018
16019         * config/arm/iterators.md (rotsplit1, rotsplit2, conj_op, fcmac1,
16020         VCMLA_OP, VCMUL_OP): New.
16021         * config/arm/mve.md (mve_vcmlaq<mve_rot><mode>): Support vec_dup 0.
16022         * config/arm/neon.md (cmul<conj_op><mode>3): New.
16023         * config/arm/unspecs.md (UNSPEC_VCMLA_CONJ, UNSPEC_VCMLA180_CONJ,
16024         UNSPEC_VCMUL_CONJ): New.
16025         * config/arm/vec-common.md (cmul<conj_op><mode>3, arm_vcmla<rot><mode>,
16026         cml<fcmac1><conj_op><mode>4): New.
16027
16028 2021-01-23  Jakub Jelinek  <jakub@redhat.com>
16029
16030         PR testsuite/97301
16031         * config/rs6000/mmintrin.h (__m64): Add __may_alias__ attribute.
16032
16033 2021-01-22  Jonathan Wright  <jonathan.wright@arm.com>
16034
16035         * config/aarch64/aarch64-simd-builtins.def: Add mla builtin
16036         generator macro.
16037         * config/aarch64/arm_neon.h (vmla_s8): Use RTL builtin rather
16038         than asm.
16039         (vmla_s16): Likewise.
16040         (vmla_s32): Likewise.
16041         (vmla_u8): Likewise.
16042         (vmla_u16): Likewise.
16043         (vmla_u32): Likewise.
16044         (vmlaq_s8): Likewise.
16045         (vmlaq_s16): Likewise.
16046         (vmlaq_s32): Likewise.
16047         (vmlaq_u8): Likewise.
16048         (vmlaq_u16): Likewise.
16049         (vmlaq_u32): Likewise.
16050
16051 2021-01-22  David Malcolm  <dmalcolm@redhat.com>
16052
16053         * doc/invoke.texi (GCC_EXTRA_DIAGNOSTIC_OUTPUT): Add @findex
16054         directive.
16055
16056 2021-01-22  Jakub Jelinek  <jakub@redhat.com>
16057
16058         PR debug/98796
16059         * dwarf2out.c (output_file_names): For -gdwarf-5, if there are no
16060         filenames to emit, still emit the required 0 index directory and
16061         filename entries that match DW_AT_comp_dir and DW_AT_name of the
16062         compilation unit.
16063
16064 2021-01-22  Marek Polacek  <polacek@redhat.com>
16065
16066         PR c++/98545
16067         * doc/invoke.texi: Update C++ ABI Version 15 description.
16068
16069 2021-01-22  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
16070
16071         PR tree-optimization/98766
16072         * tree-ssa-math-opts.c (convert_mult_to_fma): Use maybe_le when
16073         comparing against type size with param_avoid_fma_max_bits.
16074
16075 2021-01-22  Richard Biener  <rguenther@suse.de>
16076
16077         PR middle-end/98793
16078         * tree.c (vector_element_bits): Key single-bit bool vector on
16079         integer mode rather than not vector mode.
16080
16081 2021-01-22  Xionghu Luo  <luoxhu@linux.ibm.com>
16082
16083         PR target/98093
16084         * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin):
16085         Generate ARRAY_REF(VIEW_CONVERT_EXPR) for P8 and later
16086         platforms.
16087         * config/rs6000/rs6000.c (rs6000_expand_vector_set_var): Update
16088         to call different path for P8 and P9.
16089         (rs6000_expand_vector_set_var_p9): New function.
16090         (rs6000_expand_vector_set_var_p8): New function.
16091
16092 2021-01-22  Xionghu Luo  <luoxhu@linux.ibm.com>
16093
16094         PR target/79251
16095         PR target/98065
16096         * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin):
16097         Ajdust variable index vec_insert from address dereference to
16098         ARRAY_REF(VIEW_CONVERT_EXPR) tree expression.
16099         * config/rs6000/rs6000-protos.h (rs6000_expand_vector_set_var):
16100         New declaration.
16101         * config/rs6000/rs6000.c (rs6000_expand_vector_set_var): New function.
16102
16103 2021-01-22  Martin Liska  <mliska@suse.cz>
16104
16105         PR gcov-profile/98739
16106         * profile.c (compute_value_histograms): Drop time profile for
16107         -fprofile-reproducible=multithreaded.
16108
16109 2021-01-22  Nathan Sidwell  <nathan@acm.org>
16110
16111         * gcc.c (process_command): Don't check OPT_SPECIAL_input_file
16112         existence here.
16113
16114 2021-01-22  Richard Biener  <rguenther@suse.de>
16115
16116         PR middle-end/98773
16117         * tree-data-ref.c (initalize_matrix_A): Revert previous
16118         change, retaining failing on HOST_WIDE_INT_MIN CHREC_RIGHT.
16119
16120 2021-01-22  Jakub Jelinek  <jakub@redhat.com>
16121
16122         PR tree-optimization/90248
16123         * match.pd (X cmp 0.0 ? 1.0 : -1.0 -> copysign(1, +-X),
16124         X cmp 0.0 ? -1.0 : +1.0 -> copysign(1, -+X)): Remove
16125         simplifications.
16126         (X * (X cmp 0.0 ? 1.0 : -1.0) -> +-abs(X),
16127         X * (X cmp 0.0 ? -1.0 : 1.0) -> +-abs(X)): New simplifications.
16128
16129 2021-01-22  Jakub Jelinek  <jakub@redhat.com>
16130
16131         PR tree-optimization/98255
16132         * tree-dfa.c (get_ref_base_and_extent): For ARRAY_REFs, sign
16133         extend index - low_bound from sizetype's precision rather than index
16134         precision.
16135         (get_addr_base_and_unit_offset_1): Likewise.
16136         * tree-ssa-sccvn.c (ao_ref_init_from_vn_reference): Likewise.
16137         * gimple-fold.c (fold_const_aggregate_ref_1): Likewise.
16138
16139 2021-01-22  Richard Biener  <rguenther@suse.de>
16140
16141         PR tree-optimization/98786
16142         * tree-ssa-phiopt.c (factor_out_conditional_conversion): Avoid
16143         adding new uses of abnormals.  Verify we deal with a conditional
16144         conversion.
16145
16146 2021-01-22  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
16147
16148         PR target/98636
16149         * optc-save-gen.awk: Add arm_fp16_format to checked_options.
16150
16151 2021-01-22  liuhongt  <hongtao.liu@intel.com>
16152
16153         PR target/96891
16154         PR target/98348
16155         * config/i386/sse.md (VI_128_256): New mode iterator.
16156         (*avx_cmp<mode>3_1, *avx_cmp<mode>3_2, *avx_cmp<mode>3_3,
16157          *avx_cmp<mode>3_4, *avx2_eq<mode>3, *avx2_pcmp<mode>3_1,
16158          *avx2_pcmp<mode>3_2, *avx2_gt<mode>3): New
16159         define_insn_and_split to lower avx512 vector comparison to avx
16160         version when dest is vector.
16161         (*<avx512>_cmp<mode>3,*<avx512>_cmp<mode>3,*<avx512>_ucmp<mode>3):
16162         define_insn_and_split for negating the comparison result.
16163         * config/i386/predicates.md (float_vector_all_ones_operand):
16164         New predicate.
16165         * config/i386/i386-expand.c (ix86_expand_sse_movcc): Use
16166         general NOT operator without UNSPEC_MASKOP.
16167
16168 2021-01-21  Vladimir N. Makarov  <vmakarov@redhat.com>
16169
16170         PR rtl-optimization/98777
16171         * lra-int.h (lra_pmode_pseudo): New extern.
16172         * lra.c (lra_pmode_pseudo): New global.
16173         (lra): Set it up.
16174         * lra-eliminations.c (eliminate_regs_in_insn): Use it.
16175
16176 2021-01-21  Ilya Leoshkevich  <iii@linux.ibm.com>
16177
16178         * fwprop.c (fwprop_propagation::classify_result): Allow
16179         (subreg (mem)) simplifications.
16180
16181 2021-01-21  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
16182
16183         * config/aarch64/aarch64-simd.md (aarch64_sqdml<SBINQOPS:as>l<mode>):
16184         Split into...
16185         (aarch64_sqdmlal<mode>): ... This...
16186         (aarch64_sqdmlsl<mode>): ... And this.
16187         (aarch64_sqdml<SBINQOPS:as>l_lane<mode>): Split into...
16188         (aarch64_sqdmlal_lane<mode>): ... This...
16189         (aarch64_sqdmlsl_lane<mode>): ... And this.
16190         (aarch64_sqdml<SBINQOPS:as>l_laneq<mode>): Split into...
16191         (aarch64_sqdmlsl_laneq<mode>): ... This...
16192         (aarch64_sqdmlal_laneq<mode>):  ... And this.
16193         (aarch64_sqdml<SBINQOPS:as>l_n<mode>): Split into...
16194         (aarch64_sqdmlsl_n<mode>): ... This...
16195         (aarch64_sqdmlal_n<mode>): ... And this.
16196         (aarch64_sqdml<SBINQOPS:as>l2<mode>_internal): Split into...
16197         (aarch64_sqdmlal2<mode>_internal): ... This...
16198         (aarch64_sqdmlsl2<mode>_internal): ... And this.
16199
16200 2021-01-21  Christophe Lyon  <christophe.lyon@linaro.org>
16201
16202         * config/arm/arm_mve.h (__arm_vcmpneq_s8): Fix return type.
16203
16204 2021-01-21  Andrea Corallo  <andrea.corallo@arm.com>
16205
16206         PR target/96372
16207         * doc/sourcebuild.texi (arm_thumb2_no_arm_v8_1_lob): Document.
16208
16209 2021-01-21  liuhongt  <hongtao.liu@intel.com>
16210
16211         PR rtl-optimization/98694
16212         * regcprop.c (copy_value): If SRC had been assigned a mode
16213         narrower than the copy, we can't link DEST into the chain even
16214         they have same hard_regno_nregs(i.e. HImode/SImode in i386
16215         backend).
16216
16217 2021-01-20  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
16218
16219         * config/aarch64/aarch64-simd.md (aarch64_get_lane<mode>):
16220         Convert to define_insn_and_split.  Split into simple move when moving
16221         bottom element.
16222
16223 2021-01-20  Segher Boessenkool  <segher@kernel.crashing.org>
16224
16225         * config/rs6000/rs6000.c (rs6000_emit_le_vsx_store): Change assert.
16226         Adjust comment.  Simplify code.
16227
16228 2021-01-20  Jakub Jelinek  <jakub@redhat.com>
16229
16230         PR debug/98765
16231         * dwarf2out.c (reset_indirect_string): Also reset indirect strings
16232         with DW_FORM_line_strp form.
16233         (prune_unused_types_update_strings): Don't add into debug_str_hash
16234         indirect strings with DW_FORM_line_strp form.
16235         (adjust_name_comp_dir): New function.
16236         (dwarf2out_finish): Call it on CU DIEs after resetting
16237         debug_line_str_hash.
16238
16239 2021-01-20  Vladimir N. Makarov  <vmakarov@redhat.com>
16240
16241         PR rtl-optimization/98722
16242         * lra-eliminations.c (eliminate_regs_in_insn): Check that target
16243         has no 3-op add insn to transform insns containing two pluses.
16244
16245 2021-01-20  Richard Biener  <rguenther@suse.de>
16246
16247         * hwint.h (add_hwi): New function.
16248         (mul_hwi): Likewise.
16249         * tree-data-ref.c (initialize_matrix_A): Properly translate
16250         tree constants and avoid HOST_WIDE_INT_MIN.
16251         (lambda_matrix_row_add): Avoid undefined integer overflow
16252         and return true on such overflow.
16253         (lambda_matrix_right_hermite): Handle overflow from
16254         lambda_matrix_row_add gracefully.  Simplify previous fix.
16255         (analyze_subscript_affine_affine): Likewise.
16256
16257 2021-01-20  Eugene Rozenfeld  <erozen@microsoft.com>
16258
16259         PR tree-optimization/96674
16260         * match.pd: New patterns: x < y || y == XXX_MIN --> x <= y - 1
16261         x >= y && y != XXX_MIN --> x > y - 1
16262
16263 2021-01-20  Richard Sandiford  <richard.sandiford@arm.com>
16264
16265         PR tree-optimization/98535
16266         * tree-vect-slp.c (duplicate_and_interleave): Use quick_grow_cleared.
16267         If the high and low permutes are the same, remove the high permutes
16268         from the working set and only continue with the low ones.
16269
16270 2021-01-20  Jakub Jelinek  <jakub@redhat.com>
16271
16272         PR tree-optimization/98721
16273         * builtins.c (access_ref::inform_access): Don't assume
16274         SSA_NAME_IDENTIFIER must be non-NULL.  Print messages about
16275         object whenever allocfn is NULL, rather than only when DECL_P
16276         is true.  Use %qE instead of %qD for that.  Formatting fixes.
16277
16278 2021-01-20  Richard Biener  <rguenther@suse.de>
16279
16280         PR tree-optimization/98758
16281         * tree-data-ref.c (int_divides_p): Use lambda_int arguments.
16282         (lambda_matrix_right_hermite): Avoid undefinedness with
16283         signed integer abs and multiplication.
16284         (analyze_subscript_affine_affine): Use lambda_int.
16285
16286 2021-01-20  David Malcolm  <dmalcolm@redhat.com>
16287
16288         PR debug/98751
16289         * dwarf2out.c (output_line_info): Rename static variable
16290         "generation", moving it out of the function to...
16291         (output_line_info_generation): New.
16292         (init_sections_and_labels): Likewise, renaming the variable to...
16293         (init_sections_and_labels_generation): New.
16294         (dwarf2out_c_finalize): Reset the new variables.
16295
16296 2021-01-19  Martin Sebor  <msebor@redhat.com>
16297
16298         PR middle-end/98664
16299         * tree-ssa-live.c (remove_unused_scope_block_p): Keep scopes for
16300         all functions, even if they're not declared artificial or inline.
16301         * tree.c (tree_inlined_location): Use macro expansion location
16302         only if scope traversal fails to expose one.
16303
16304 2021-01-19  Richard Sandiford  <richard.sandiford@arm.com>
16305
16306         PR rtl-optimization/92294
16307         * alias.c (compare_base_symbol_refs): Take an extra parameter
16308         and add the distance between two symbols to it.  Enshrine in
16309         comments that -1 means "either 0 or 1, but we can't tell
16310         which at compile time".
16311         (memrefs_conflict_p): Update call accordingly.
16312         (rtx_equal_for_memref_p): Likewise.  Take the distance between symbols
16313         into account.
16314
16315 2021-01-19  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
16316
16317         * config/aarch64/aarch64-simd-builtins.def (sqshl, uqshl,
16318         sqrshl, uqrshl, sqadd, uqadd, sqsub, uqsub, suqadd, usqadd, sqmovn,
16319         uqmovn, sqxtn2, uqxtn2, sqabs, sqneg, sqdmlal, sqdmlsl, sqdmlal_lane,
16320         sqdmlsl_lane, sqdmlal_laneq, sqdmlsl_laneq, sqdmlal_n, sqdmlsl_n,
16321         sqdmlal2, sqdmlsl2, sqdmlal2_lane, sqdmlsl2_lane, sqdmlal2_laneq,
16322         sqdmlsl2_laneq, sqdmlal2_n, sqdmlsl2_n, sqdmull, sqdmull_lane,
16323         sqdmull_laneq, sqdmull_n, sqdmull2, sqdmull2_lane, sqdmull2_laneq,
16324         sqdmull2_n, sqdmulh, sqrdmulh, sqdmulh_lane, sqdmulh_laneq,
16325         sqrdmulh_lane, sqrdmulh_laneq, sqshrun_n, sqrshrun_n, sqshrn_n,
16326         uqshrn_n, sqrshrn_n, uqrshrn_n, sqshlu_n, sqshl_n, uqshl_n, sqrdmlah,
16327         sqrdmlsh, sqrdmlah_lane, sqrdmlsh_lane, sqrdmlah_laneq, sqrdmlsh_laneq,
16328         sqmovun): Use NONE flags.
16329
16330 2021-01-19  Richard Biener  <rguenther@suse.de>
16331
16332         PR ipa/98330
16333         * ipa-modref.c (analyze_stmt): Only record a summary for a
16334         direct call.
16335
16336 2021-01-19  Richard Biener  <rguenther@suse.de>
16337
16338         PR middle-end/98638
16339         * tree-ssanames.c (fini_ssanames): Zero SSA_NAME_DEF_STMT.
16340
16341 2021-01-19  Daniel Hellstrom  <daniel@gaisler.com>
16342
16343         * config/sparc/rtemself.h (TARGET_OS_CPP_BUILTINS): Add
16344         built-in define __FIX_LEON3FT_TN0018.
16345
16346 2021-01-19  Richard Biener  <rguenther@suse.de>
16347
16348         PR ipa/97673
16349         * tree-inline.c (tree_function_versioning): Set input_location
16350         to UNKNOWN_LOCATION throughout the function.
16351
16352 2021-01-19  Tobias Burnus  <tobias@codesourcery.com>
16353
16354         PR fortran/98476
16355         * omp-low.c (lower_omp_target): Handle nonpointer is_device_ptr.
16356
16357 2021-01-19  Martin Jambor  <mjambor@suse.cz>
16358
16359         PR ipa/98690
16360         * ipa-sra.c (ssa_name_only_returned_p): New parameter fun.  Check
16361         whether non-call exceptions allow removal of a statement.
16362         (isra_analyze_call): Pass the appropriate function to
16363         ssa_name_only_returned_p.
16364
16365 2021-01-19  Geng Qi  <gengqi@linux.alibaba.com>
16366
16367         * config/riscv/arch-canonicalize (longext_sort): New function for
16368          sorting 'multi-letter'.
16369         * config/riscv/multilib-generator: Adjusting the loop of 'alt' in
16370         'alts'. The 'arch' may not be the first of 'alts'.
16371         (_expand_combination): Add underline for the 'ext' without '*'.
16372         This is because, a single-letter extension can always be treated well
16373         with a '_' prefix, but it cannot be separated out if it is appended
16374         to a multi-letter.
16375
16376 2021-01-18  Vladimir N. Makarov  <vmakarov@redhat.com>
16377
16378         PR target/97847
16379         * ira.c (ira): Skip abnormal critical edge splitting.
16380
16381 2021-01-18  Jakub Jelinek  <jakub@redhat.com>
16382
16383         PR tree-optimization/98727
16384         * tree-ssa-math-opts.c (match_arith_overflow): Fix up computation of
16385         second .MUL_OVERFLOW operand for signed multiplication with overflow
16386         checking if the second operand of multiplication is not constant.
16387
16388 2021-01-18  David Edelsohn  <dje.gcc@gmail.com>
16389
16390         * doc/invoke.texi (-gdwarf): TPF defaults to version 2 and AIX
16391         defaults to version 4.
16392
16393 2021-01-18  David Malcolm  <dmalcolm@redhat.com>
16394
16395         * attribs.h (fndecl_dealloc_argno): New decl.
16396         * builtins.c (call_dealloc_argno): Split out second half of
16397         function into...
16398         (fndecl_dealloc_argno): New.
16399         * doc/extend.texi (Common Function Attributes): Document the
16400         interaction between the analyzer and the malloc attribute.
16401         * doc/invoke.texi (Static Analyzer Options): Likewise.
16402
16403 2021-01-17  David Edelsohn  <dje.gcc@gmail.com>
16404
16405         * config/rs6000/aix71.h (SUBTARGET_OVERRIDE_OPTIONS): Override
16406         dwarf_version to 4.
16407         * config/rs6000/aix72.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
16408
16409 2021-01-17  Martin Jambor  <mjambor@suse.cz>
16410
16411         PR ipa/98222
16412         * cgraph.c (clone_of_p): Check also former_clone_of as we climb
16413         the clone tree.
16414
16415 2021-01-17  Mark Wielaard  <mark@klomp.org>
16416
16417         * common.opt (gdwarf-): Init(5).
16418         * doc/invoke.texi (-gdwarf): Document default to 5.
16419
16420 2021-01-16  Kwok Cheung Yeung  <kcy@codesourcery.com>
16421
16422         * builtin-types.def
16423         (BT_FN_VOID_OMPFN_PTR_OMPCPYFN_LONG_LONG_BOOL_UINT_PTR_INT): Rename
16424         to...
16425         (BT_FN_VOID_OMPFN_PTR_OMPCPYFN_LONG_LONG_BOOL_UINT_PTR_INT_PTR):
16426         ...this.  Add extra argument.
16427         * gimplify.c (omp_default_clause): Ensure that event handle is
16428         firstprivate in a task region.
16429         (gimplify_scan_omp_clauses): Handle OMP_CLAUSE_DETACH.
16430         (gimplify_adjust_omp_clauses): Likewise.
16431         * omp-builtins.def (BUILT_IN_GOMP_TASK): Change function type to
16432         BT_FN_VOID_OMPFN_PTR_OMPCPYFN_LONG_LONG_BOOL_UINT_PTR_INT_PTR.
16433         * omp-expand.c (expand_task_call): Add GOMP_TASK_FLAG_DETACH to flags
16434         if detach clause specified.  Add detach argument when generating
16435         call to GOMP_task.
16436         * omp-low.c (scan_sharing_clauses): Setup data environment for detach
16437         clause.
16438         (finish_taskreg_scan): Move field for variable containing the event
16439         handle to the front of the struct.
16440         * tree-core.h (enum omp_clause_code): Add OMP_CLAUSE_DETACH.  Fix
16441         ordering.
16442         * tree-nested.c (convert_nonlocal_omp_clauses): Handle
16443         OMP_CLAUSE_DETACH clause.
16444         (convert_local_omp_clauses): Handle OMP_CLAUSE_DETACH clause.
16445         * tree-pretty-print.c (dump_omp_clause): Handle OMP_CLAUSE_DETACH.
16446         * tree.c (omp_clause_num_ops): Add entry for OMP_CLAUSE_DETACH.
16447         Fix ordering.
16448         (omp_clause_code_name): Add entry for OMP_CLAUSE_DETACH.  Fix
16449         ordering.
16450         (walk_tree_1): Handle OMP_CLAUSE_DETACH.
16451
16452 2021-01-16  Sebastian Huber  <sebastian.huber@embedded-brains.de>
16453
16454         * config/nios2/t-rtems: Reset all MULTILIB_* variables.  Shorten
16455         multilib directory names.  Use MULTILIB_REQUIRED instead of
16456         MULTILIB_EXCEPTIONS.  Add -mhw-mul -mhw-mulx -mhw-div
16457         -mcustom-fpu-cfg=fph2 multilib.
16458
16459 2021-01-16  Sebastian Huber  <sebastian.huber@embedded-brains.de>
16460
16461         * config/nios2/nios2.c (NIOS2_FPU_CONFIG_NUM): Adjust value.
16462         (nios2_init_fpu_configs): Provide register values for new
16463         -mcustom-fpu-cfg=fph2 option variant.
16464         * doc/invoke.texi (-mcustom-fpu-cfg=fph2): Document new option
16465         variant.
16466
16467 2021-01-16  Sebastian Huber  <sebastian.huber@embedded-brains.de>
16468
16469         * config/nios2/nios2.c (nios2_custom_check_insns): Remove
16470         custom instruction warnings.
16471
16472 2021-01-16  Jakub Jelinek  <jakub@redhat.com>
16473
16474         PR tree-optimization/96669
16475         * match.pd ((CST << x) & 1 -> x == 0): New simplification.
16476
16477 2021-01-16  Jakub Jelinek  <jakub@redhat.com>
16478
16479         PR tree-optimization/96271
16480         * passes.def: Pass false argument to first two pass_cd_dce
16481         instances and true to last instance.  Add comment that
16482         last instance rewrites no longer addressed locals.
16483         * tree-ssa-dce.c (pass_cd_dce): Add update_address_taken_p member and
16484         initialize it.
16485         (pass_cd_dce::set_pass_param): New method.
16486         (pass_cd_dce::execute): Return TODO_update_address_taken from
16487         last cd_dce instance.
16488
16489 2021-01-15  Carl Love  <cel@us.ibm.com>
16490
16491         * config/rs6000/altivec.h (vec_mulh, vec_div, vec_dive, vec_mod):
16492         New defines.
16493         * config/rs6000/altivec.md (VIlong): Move define to file vsx.md.
16494         * config/rs6000/rs6000-builtin.def (DIVES_V4SI, DIVES_V2DI,
16495         DIVEU_V4SI, DIVEU_V2DI, DIVS_V4SI, DIVS_V2DI, DIVU_V4SI,
16496         DIVU_V2DI, MODS_V2DI, MODS_V4SI, MODU_V2DI, MODU_V4SI,
16497         MULHS_V2DI, MULHS_V4SI, MULHU_V2DI, MULHU_V4SI, MULLD_V2DI):
16498         Add builtin define.
16499         (MULH, DIVE, MOD):  Add new BU_P10_OVERLOAD_2 definitions.
16500         * config/rs6000/rs6000-call.c (VSX_BUILTIN_VEC_DIV,
16501         VSX_BUILTIN_VEC_DIVE, P10_BUILTIN_VEC_MOD, P10_BUILTIN_VEC_MULH):
16502         New overloaded definitions.
16503         (builtin_function_type) [P10V_BUILTIN_DIVEU_V4SI,
16504         P10V_BUILTIN_DIVEU_V2DI, P10V_BUILTIN_DIVU_V4SI,
16505         P10V_BUILTIN_DIVU_V2DI, P10V_BUILTIN_MODU_V2DI,
16506         P10V_BUILTIN_MODU_V4SI, P10V_BUILTIN_MULHU_V2DI,
16507         P10V_BUILTIN_MULHU_V4SI]: Add case
16508         statement for builtins.
16509         * config/rs6000/rs6000.md (bits): Add new attribute sizes V4SI, V2DI.
16510         * config/rs6000/vsx.md (VIlong): Moved from config/rs6000/altivec.md.
16511         (UNSPEC_VDIVES, UNSPEC_VDIVEU): New unspec definitions.
16512         (vsx_mul_v2di): Add if TARGET_POWER10 statement.
16513         (vsx_udiv_v2di): Add if TARGET_POWER10 statement.
16514         (dives_<mode>, diveu_<mode>, div<mode>3, uvdiv<mode>3,
16515         mods_<mode>, modu_<mode>, mulhs_<mode>, mulhu_<mode>, mulv2di3):
16516         Add define_insn, mode is VIlong.
16517         * doc/extend.texi (vec_mulh, vec_mul, vec_div, vec_dive, vec_mod):
16518         Add builtin descriptions.
16519
16520 2021-01-15  Eric Botcazou  <ebotcazou@adacore.com>
16521
16522         * final.c (final_start_function_1): Reset force_source_line.
16523
16524 2021-01-15  Jakub Jelinek  <jakub@redhat.com>
16525
16526         PR tree-optimization/96669
16527         * match.pd (((1 << A) & 1) != 0 -> A == 0,
16528         ((1 << A) & 1) == 0 -> A != 0): Generalize for 1s replaced by
16529         possibly different power of two constants and to right shift too.
16530
16531 2021-01-15  Jakub Jelinek  <jakub@redhat.com>
16532
16533         PR tree-optimization/96681
16534         * match.pd ((x < 0) ^ (y < 0) to (x ^ y) < 0): New simplification.
16535         ((x >= 0) ^ (y >= 0) to (x ^ y) < 0): Likewise.
16536         ((x < 0) ^ (y >= 0) to (x ^ y) >= 0): Likewise.
16537         ((x >= 0) ^ (y < 0) to (x ^ y) >= 0): Likewise.
16538
16539 2021-01-15  Alexandre Oliva  <oliva@adacore.com>
16540
16541         * opts.c (gen_command_line_string): Exclude -dumpbase-ext.
16542
16543 2021-01-15  Tamar Christina  <tamar.christina@arm.com>
16544
16545         * config/aarch64/aarch64-simd.md (cml<fcmac1><conj_op><mode>4,
16546         cmul<conj_op><mode>3): New.
16547         * config/aarch64/iterators.md (UNSPEC_FCMUL,
16548         UNSPEC_FCMUL180, UNSPEC_FCMLA_CONJ, UNSPEC_FCMLA180_CONJ,
16549         UNSPEC_CMLA_CONJ, UNSPEC_CMLA180_CONJ, UNSPEC_CMUL, UNSPEC_CMUL180,
16550         FCMLA_OP, FCMUL_OP, conj_op, rotsplit1, rotsplit2, fcmac1, sve_rot1,
16551         sve_rot2, SVE2_INT_CMLA_OP, SVE2_INT_CMUL_OP, SVE2_INT_CADD_OP): New.
16552         (rot): Add UNSPEC_FCMUL, UNSPEC_FCMUL180.
16553         (rot_op): Renamed to conj_op.
16554         * config/aarch64/aarch64-sve.md (cml<fcmac1><conj_op><mode>4,
16555         cmul<conj_op><mode>3): New.
16556         * config/aarch64/aarch64-sve2.md (cml<fcmac1><conj_op><mode>4,
16557         cmul<conj_op><mode>3): New.
16558
16559 2021-01-15  David Malcolm  <dmalcolm@redhat.com>
16560
16561         PR bootstrap/98696
16562         * diagnostic.c
16563         (selftest::test_print_parseable_fixits_bytes_vs_display_columns):
16564         Escape the tempfile name when constructing the expected output.
16565
16566 2021-01-15  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
16567
16568         * config/aarch64/aarch64-simd.md (*aarch64_<su>mlsl_hi<mode>):
16569         Rename to...
16570         (aarch64_<su>mlsl_hi<mode>): ... This.
16571         (aarch64_<su>mlsl_hi<mode>): Define.
16572         (*aarch64_<su>mlsl<mode): Rename to...
16573         (aarch64_<su>mlsl<mode): ... This.
16574         * config/aarch64/aarch64-simd-builtins.def (smlsl, umlsl,
16575         smlsl_hi, umlsl_hi): Define builtins.
16576         * config/aarch64/arm_neon.h (vmlsl_high_s8, vmlsl_high_s16,
16577         vmlsl_high_s32, vmlsl_high_u8, vmlsl_high_u16, vmlsl_high_u32,
16578         vmlsl_s8, vmlsl_s16, vmlsl_s32, vmlsl_u8,
16579         vmlsl_u16, vmlsl_u32): Reimplement with builtins.
16580
16581 2021-01-15  Uroš Bizjak  <ubizjak@gmail.com>
16582
16583         * config/i386/i386-c.c (ix86_target_macros):
16584         Use cpp_define_formatted for __SIZEOF_FLOAT80__ definition.
16585
16586 2021-01-15  Richard Sandiford  <richard.sandiford@arm.com>
16587
16588         PR target/88836
16589         * config.gcc (aarch64*-*-*): Add aarch64-cc-fusion.o to extra_objs.
16590         * Makefile.in (RTL_SSA_H): New variable.
16591         * config/aarch64/t-aarch64 (aarch64-cc-fusion.o): New rule.
16592         * config/aarch64/aarch64-protos.h (make_pass_cc_fusion): Declare.
16593         * config/aarch64/aarch64-passes.def: Add pass_cc_fusion after
16594         pass_combine.
16595         * config/aarch64/aarch64-cc-fusion.cc: New file.
16596
16597 2021-01-15  Richard Sandiford  <richard.sandiford@arm.com>
16598
16599         * recog.h (insn_change_watermark::~insn_change_watermark): Avoid
16600         calling cancel_changes for changes that no longer exist.
16601
16602 2021-01-15  Richard Sandiford  <richard.sandiford@arm.com>
16603
16604         * rtl-ssa/functions.h (function_info::ref_defs): Rename to...
16605         (function_info::reg_defs): ...this.
16606         * rtl-ssa/member-fns.inl (function_info::ref_defs): Rename to...
16607         (function_info::reg_defs): ...this.
16608
16609 2021-01-15  Christophe Lyon  <christophe.lyon@linaro.org>
16610
16611         PR target/71233
16612         * config/arm/arm_neon.h (vceqz_p64, vceqq_p64, vceqzq_p64): New.
16613
16614 2021-01-15  Christophe Lyon  <christophe.lyon@linaro.org>
16615
16616         Revert:
16617         2021-01-15  Christophe Lyon  <christophe.lyon@linaro.org>
16618
16619         PR target/71233
16620         * config/arm/arm_neon.h (vceqz_p64, vceqq_p64, vceqzq_p64): New.
16621
16622 2021-01-15  Richard Biener  <rguenther@suse.de>
16623
16624         PR tree-optimization/96376
16625         * tree-vect-stmts.c (get_load_store_type): Disregard alignment
16626         for VMAT_INVARIANT.
16627
16628 2021-01-15  Martin Liska  <mliska@suse.cz>
16629
16630         * doc/install.texi: Document that some tests need pytest module.
16631         * doc/sourcebuild.texi: Likewise.
16632
16633 2021-01-15  Christophe Lyon  <christophe.lyon@linaro.org>
16634
16635         PR target/71233
16636         * config/arm/arm_neon.h (vceqz_p64, vceqq_p64, vceqzq_p64): New.
16637
16638 2021-01-15  Christophe Lyon  <christophe.lyon@linaro.org>
16639
16640         * config/arm/mve.md (mve_vshrq_n_s<mode>_imm): New entry.
16641         (mve_vshrq_n_u<mode>_imm): Likewise.
16642         * config/arm/neon.md (vashr<mode>3, vlshr<mode>3): Move to ...
16643         * config/arm/vec-common.md: ... here.
16644
16645 2021-01-15  Christophe Lyon  <christophe.lyon@linaro.org>
16646
16647         * config/arm/mve.md (mve_vshlq_<supf><mode>): Move to
16648         vec-commond.md.
16649         * config/arm/neon.md (vashl<mode>3): Delete.
16650         * config/arm/vec-common.md (mve_vshlq_<supf><mode>): New.
16651         (vasl<mode>3): New expander.
16652
16653 2021-01-15  Richard Biener  <rguenther@suse.de>
16654
16655         PR tree-optimization/98685
16656         * tree-vect-slp.c (vect_schedule_slp_node): Refactor handling
16657         of vector extern defs.
16658
16659 2021-01-14  David Malcolm  <dmalcolm@redhat.com>
16660
16661         PR jit/98586
16662         * diagnostic.c (diagnostic_kind_text): Break out this array
16663         from...
16664         (diagnostic_build_prefix): ...here.
16665         (fancy_abort): Detect when diagnostic_initialize has not yet been
16666         called and fall back to a minimal implementation of printing the
16667         ICE, rather than segfaulting in internal_error.
16668
16669 2021-01-14  David Malcolm  <dmalcolm@redhat.com>
16670
16671         * diagnostic.c (diagnostic_initialize): Eliminate
16672         parseable_fixits_p in favor of initializing extra_output_kind from
16673         GCC_EXTRA_DIAGNOSTIC_OUTPUT.
16674         (convert_column_unit): New function, split out from...
16675         (diagnostic_converted_column): ...this.
16676         (print_parseable_fixits): Add "column_unit" and "tabstop" params.
16677         Use them to call convert_column_unit on the column values.
16678         (diagnostic_report_diagnostic): Eliminate conditional on
16679         parseable_fixits_p in favor of a switch statement on
16680         extra_output_kind, passing the appropriate values to the new
16681         params of print_parseable_fixits.
16682         (selftest::test_print_parseable_fixits_none): Update for new
16683         params of print_parseable_fixits.
16684         (selftest::test_print_parseable_fixits_insert): Likewise.
16685         (selftest::test_print_parseable_fixits_remove): Likewise.
16686         (selftest::test_print_parseable_fixits_replace): Likewise.
16687         (selftest::test_print_parseable_fixits_bytes_vs_display_columns):
16688         New.
16689         (selftest::diagnostic_c_tests): Call it.
16690         * diagnostic.h (enum diagnostics_extra_output_kind): New.
16691         (diagnostic_context::parseable_fixits_p): Delete field in favor
16692         of...
16693         (diagnostic_context::extra_output_kind): ...this new field.
16694         * doc/invoke.texi (Environment Variables): Add
16695         GCC_EXTRA_DIAGNOSTIC_OUTPUT.
16696         * opts.c (common_handle_option): Update handling of
16697         OPT_fdiagnostics_parseable_fixits for change to diagnostic_context
16698         fields.
16699
16700 2021-01-14  Tamar Christina  <tamar.christina@arm.com>
16701
16702         * tree-vect-slp-patterns.c (class complex_operations_pattern,
16703         complex_operations_pattern::matches,
16704         complex_operations_pattern::recognize,
16705         complex_operations_pattern::build): New.
16706         (slp_patterns): Use it.
16707
16708 2021-01-14  Tamar Christina  <tamar.christina@arm.com>
16709
16710         * internal-fn.def (COMPLEX_FMS, COMPLEX_FMS_CONJ): New.
16711         * optabs.def (cmls_optab, cmls_conj_optab): New.
16712         * doc/md.texi: Document them.
16713         * tree-vect-slp-patterns.c (class complex_fms_pattern,
16714         complex_fms_pattern::matches, complex_fms_pattern::recognize,
16715         complex_fms_pattern::build): New.
16716
16717 2021-01-14  Tamar Christina  <tamar.christina@arm.com>
16718
16719         * internal-fn.def (COMPLEX_FMA, COMPLEX_FMA_CONJ): New.
16720         * optabs.def (cmla_optab, cmla_conj_optab): New.
16721         * doc/md.texi: Document them.
16722         * tree-vect-slp-patterns.c (vect_match_call_p,
16723         class complex_fma_pattern, vect_slp_reset_pattern,
16724         complex_fma_pattern::matches, complex_fma_pattern::recognize,
16725         complex_fma_pattern::build): New.
16726
16727 2021-01-14  Tamar Christina  <tamar.christina@arm.com>
16728
16729         * internal-fn.def (COMPLEX_MUL, COMPLEX_MUL_CONJ): New.
16730         * optabs.def (cmul_optab, cmul_conj_optab): New.
16731         * doc/md.texi: Document them.
16732         * tree-vect-slp-patterns.c (vect_match_call_complex_mla,
16733         vect_normalize_conj_loc, is_eq_or_top, vect_validate_multiplication,
16734         vect_build_combine_node, class complex_mul_pattern,
16735         complex_mul_pattern::matches, complex_mul_pattern::recognize,
16736         complex_mul_pattern::build): New.
16737
16738 2021-01-14  Tamar Christina  <tamar.christina@arm.com>
16739
16740         * tree-vect-slp.c (optimize_load_redistribution_1): New.
16741         (optimize_load_redistribution, vect_is_slp_load_node): New.
16742         (vect_match_slp_patterns): Use it.
16743
16744 2021-01-14  Tamar Christina  <tamar.christina@arm.com>
16745
16746         * tree-vect-slp-patterns.c (complex_add_pattern::build):
16747         Elide nodes.
16748
16749 2021-01-14  Thomas Schwinge  <thomas@codesourcery.com>
16750
16751         * config/gcn/mkoffload.c (main): Create an offload image only in
16752         64-bit configurations.
16753
16754 2021-01-14  H.J. Lu  <hjl.tools@gmail.com>
16755
16756         PR target/98667
16757         * config/i386/i386-options.c (ix86_option_override_internal):
16758         Issue an error for -fcf-protection with CF_BRANCH when compiling
16759         for 32-bit non-TARGET_CMOV targets.
16760
16761 2021-01-14  Uroš Bizjak  <ubizjak@gmail.com>
16762
16763         PR target/98671
16764         * config/i386/i386-options.c (ix86_valid_target_attribute_inner_p):
16765         Remove declaration and initialization of shadow variable "ret".
16766         (ix86_option_override_internal): Remove delcaration of
16767         shadow variable "i".  Redeclare shadowed variable to unsigned.
16768         * common/config/i386/i386-common.c (pta_size): Redeclare to unsigned.
16769         * config/i386/i386-builtins.c (get_builtin_code_for_version):
16770         Update for redeclaration.
16771         * config/i386/i386.h (pta_size): Ditto.
16772
16773 2021-01-14  Richard Biener  <rguenther@suse.de>
16774
16775         PR tree-optimization/98674
16776         * tree-data-ref.c (base_supports_access_fn_components_p): New.
16777         (initialize_data_dependence_relation): For two bases without
16778         possible access fns resort to type size equality when determining
16779         shape compatibility.
16780
16781 2021-01-14  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
16782
16783         PR target/66791
16784         * config/arm/arm_neon.h: Replace calls to __builtin_vcge* by
16785         <=, >= operators in vcle and vcge intrinsics respectively.
16786         * config/arm/arm_neon_builtins.def: Remove entry for
16787         vcge and vcgeu.
16788
16789 2021-01-14  Uroš Bizjak  <ubizjak@gmail.com>
16790
16791         PR target/98671
16792         * config/i386/i386-options.c (ix86_function_specific_save):
16793         Remove redundant assignment to opts->x_ix86_branch_cost.
16794         * config/i386/i386.c (ix86_prefetch_sse):
16795         Rename from x86_prefetch_sse.  Update all uses.
16796         * config/i386/i386.h: Update for rename.
16797         * config/i386/i386-options.h: Ditto.
16798
16799 2021-01-14  Jakub Jelinek  <jakub@redhat.com>
16800
16801         PR target/98670
16802         * config/i386/sse.md (*sse4_1_zero_extendv8qiv8hi2_3,
16803         *sse4_1_zero_extendv4hiv4si2_3, *sse4_1_zero_extendv2siv2di2_3):
16804         Use Bm instead of m for non-avx.  Add isa attribute.
16805
16806 2021-01-14  Jakub Jelinek  <jakub@redhat.com>
16807
16808         PR tree-optimization/96688
16809         * match.pd (~(X >> Y) -> ~X >> Y): New simplification if
16810         ~X can be simplified.
16811
16812 2021-01-14  Richard Sandiford  <richard.sandiford@arm.com>
16813
16814         * tree-vect-stmts.c (vect_model_load_cost): Account for unused
16815         IFN_LOAD_LANES results.
16816
16817 2021-01-14  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
16818
16819         * config/aarch64/aarch64-simd.md (aarch64_<su>xtl<mode>):
16820         Define.
16821         (aarch64_xtn<mode>): Likewise.
16822         * config/aarch64/aarch64-simd-builtins.def (sxtl, uxtl, xtn):
16823         Define
16824         builtins.
16825         * config/aarch64/arm_neon.h (vmovl_s8): Reimplement using
16826         builtin.
16827         (vmovl_s16): Likewise.
16828         (vmovl_s32): Likewise.
16829         (vmovl_u8): Likewise.
16830         (vmovl_u16): Likewise.
16831         (vmovl_u32): Likewise.
16832         (vmovn_s16): Likewise.
16833         (vmovn_s32): Likewise.
16834         (vmovn_s64): Likewise.
16835         (vmovn_u16): Likewise.
16836         (vmovn_u32): Likewise.
16837         (vmovn_u64): Likewise.
16838
16839 2021-01-14  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
16840
16841         * config/aarch64/aarch64-simd.md (aarch64_<su>qxtn2<mode>_le):
16842         Define.
16843         (aarch64_<su>qxtn2<mode>_be): Likewise.
16844         (aarch64_<su>qxtn2<mode>): Likewise.
16845         * config/aarch64/aarch64-simd-builtins.def (sqxtn2, uqxtn2):
16846         Define builtins.
16847         * config/aarch64/iterators.md (SAT_TRUNC): Define code_iterator.
16848         (su): Handle ss_truncate and us_truncate.
16849         * config/aarch64/arm_neon.h (vqmovn_high_s16): Reimplement using
16850         builtin.
16851         (vqmovn_high_s32): Likewise.
16852         (vqmovn_high_s64): Likewise.
16853         (vqmovn_high_u16): Likewise.
16854         (vqmovn_high_u32): Likewise.
16855         (vqmovn_high_u64): Likewise.
16856
16857 2021-01-14  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
16858
16859         * config/aarch64/aarch64-simd.md (aarch64_xtn2<mode>_le):
16860         Define.
16861         (aarch64_xtn2<mode>_be): Likewise.
16862         (aarch64_xtn2<mode>): Likewise.
16863         * config/aarch64/aarch64-simd-builtins.def (xtn2): Define
16864         builtins.
16865         * config/aarch64/arm_neon.h (vmovn_high_s16): Reimplement using
16866         builtins.
16867         (vmovn_high_s32): Likewise.
16868         (vmovn_high_s64): Likewise.
16869         (vmovn_high_u16): Likewise.
16870         (vmovn_high_u32): Likewise.
16871         (vmovn_high_u64): Likewise.
16872
16873 2021-01-13  Stafford Horne  <shorne@gmail.com>
16874
16875         * config/or1k/or1k.h (ASM_PREFERRED_EH_DATA_FORMAT): New macro.
16876
16877 2021-01-13  Stafford Horne  <shorne@gmail.com>
16878
16879         * config/or1k/linux.h (TARGET_ASM_FILE_END): Define macro.
16880
16881 2021-01-13  Stafford Horne  <shorne@gmail.com>
16882
16883         * config/or1k/or1k.h (TARGET_CPU_CPP_BUILTINS): Add builtin
16884           define for __or1k_hard_float__.
16885
16886 2021-01-13  Stafford Horne  <shorne@gmail.com>
16887
16888         * config/or1k/or1k.h (NO_PROFILE_COUNTERS): Define as 1.
16889         (PROFILE_HOOK): Define to call _mcount.
16890         (FUNCTION_PROFILER): Change from abort to no-op.
16891
16892 2021-01-13  Jakub Jelinek  <jakub@redhat.com>
16893
16894         PR tree-optimization/96691
16895         * match.pd ((~X | C) ^ D -> (X | C) ^ (~D ^ C),
16896         (~X & C) ^ D -> (X & C) ^ (D ^ C)): New simplifications if
16897         (~D ^ C) or (D ^ C) can be simplified.
16898
16899 2021-01-13  Richard Biener  <rguenther@suse.de>
16900
16901         PR tree-optimization/92645
16902         * match.pd (BIT_FIELD_REF to conversion): Delay canonicalization
16903         until after vector lowering.
16904
16905 2021-01-13  Richard Sandiford  <richard.sandiford@arm.com>
16906
16907         * config/aarch64/aarch64-sve.md (fnma<mode>4): Extend from SVE_FULL_I
16908         to SVE_I.
16909         (@aarch64_pred_fnma<mode>, cond_fnma<mode>, *cond_fnma<mode>_2)
16910         (*cond_fnma<mode>_4, *cond_fnma<mode>_any): Likewise.
16911
16912 2021-01-13  Richard Sandiford  <richard.sandiford@arm.com>
16913
16914         * config/aarch64/aarch64-sve.md (fma<mode>4): Extend from SVE_FULL_I
16915         to SVE_I.
16916         (@aarch64_pred_fma<mode>, cond_fma<mode>, *cond_fma<mode>_2)
16917         (*cond_fma<mode>_4, *cond_fma<mode>_any): Likewise.
16918
16919 2021-01-13  Richard Biener  <rguenther@suse.de>
16920
16921         PR tree-optimization/92645
16922         * tree-vect-slp.c (vect_build_slp_tree_1): Relax supported
16923         BIT_FIELD_REF argument.
16924         (vect_build_slp_tree_2): Record the desired vector type
16925         on the external vector def.
16926         (vectorizable_slp_permutation): Handle required punning
16927         of existing vector defs.
16928
16929 2021-01-13  Richard Sandiford  <richard.sandiford@arm.com>
16930
16931         * rtl-ssa/accesses.h (def_lookup): Fix order of comparison results.
16932
16933 2021-01-13  Richard Sandiford  <richard.sandiford@arm.com>
16934
16935         * config/sh/sh.md (movsf_ie): Remove operands[2] test.
16936
16937 2021-01-13  Samuel Thibault  <samuel.thibault@ens-lyon.org>
16938
16939         * config.gcc [$target == *-*-gnu*]: Enable
16940         'default_gnu_indirect_function'.
16941
16942 2021-01-13  Jakub Jelinek  <jakub@redhat.com>
16943
16944         PR target/95905
16945         * optabs.c (expand_vec_perm_const): Don't force v0 and v1 into
16946         registers before calling targetm.vectorize.vec_perm_const, only after
16947         that.
16948         * config/i386/i386-expand.c (ix86_vectorize_vec_perm_const): Handle
16949         two argument permutation when one operand is zero vector and only
16950         after that force operands into registers.
16951         * config/i386/sse.md (*avx2_zero_extendv16qiv16hi2_1): New
16952         define_insn_and_split pattern.
16953         (*avx512bw_zero_extendv32qiv32hi2_1): Likewise.
16954         (*avx512f_zero_extendv16hiv16si2_1): Likewise.
16955         (*avx2_zero_extendv8hiv8si2_1): Likewise.
16956         (*avx512f_zero_extendv8siv8di2_1): Likewise.
16957         (*avx2_zero_extendv4siv4di2_1): Likewise.
16958         * config/mips/mips.c (mips_vectorize_vec_perm_const): Force operands
16959         into registers.
16960         * config/arm/arm.c (arm_vectorize_vec_perm_const): Likewise.
16961         * config/sparc/sparc.c (sparc_vectorize_vec_perm_const): Likewise.
16962         * config/ia64/ia64.c (ia64_vectorize_vec_perm_const): Likewise.
16963         * config/aarch64/aarch64.c (aarch64_vectorize_vec_perm_const): Likewise.
16964         * config/rs6000/rs6000.c (rs6000_vectorize_vec_perm_const): Likewise.
16965         * config/gcn/gcn.c (gcn_vectorize_vec_perm_const): Likewise.  Use std::swap.
16966
16967 2021-01-13  Martin Liska  <mliska@suse.cz>
16968
16969         PR tree-optimization/98455
16970         * gimple-if-to-switch.cc (condition_info::record_phi_mapping):
16971         Record also virtual PHIs.
16972         (pass_if_to_switch::execute): Return TODO_cleanup_cfg only
16973         conditionally.
16974
16975 2021-01-13  Jonathan Wakely  <jwakely@redhat.com>
16976
16977         * doc/invoke.texi (C++ Modules): Fix typos.
16978
16979 2021-01-13  Richard Biener  <rguenther@suse.de>
16980
16981         PR tree-optimization/98640
16982         * tree-ssa-sccvn.c (visit_nary_op): Do not try to
16983         handle plus or minus from a truncated operand to be
16984         sign-extended.
16985
16986 2021-01-13  Jakub Jelinek  <jakub@redhat.com>
16987
16988         PR target/96938
16989         * config/i386/i386.md (*btr<mode>_1, *btr<mode>_2): New
16990         define_insn_and_split patterns.
16991         (splitter after *btr<mode>_2): New splitter.
16992
16993 2021-01-13  Martin Liska  <mliska@suse.cz>
16994
16995         PR ipa/98652
16996         * cgraphunit.c (analyze_functions): Remove dead code.
16997
16998 2021-01-13  Qian Jianhua  <qianjh@cn.fujitsu.com>
16999
17000         * config/aarch64/aarch64-cost-tables.h (a64fx_extra_costs): New.
17001         * config/aarch64/aarch64.c (a64fx_addrcost_table): New.
17002         (a64fx_regmove_cost, a64fx_vector_cost): New.
17003         (a64fx_tunings): Use the new added cost tables.
17004
17005 2021-01-13  Jakub Jelinek  <jakub@redhat.com>
17006
17007         PR target/95905
17008         * config/i386/predicates.md (pmovzx_parallel): New predicate.
17009         * config/i386/sse.md (*sse4_1_zero_extendv8qiv8hi2_3): New
17010         define_insn_and_split pattern.
17011         (*sse4_1_zero_extendv4hiv4si2_3): Likewise.
17012         (*sse4_1_zero_extendv2siv2di2_3): Likewise.
17013
17014 2021-01-13  Julian Brown  <julian@codesourcery.com>
17015
17016         * config/gcn/gcn.c (gcn_conditional_register_usage): Remove dead code
17017         to fix v0 register.
17018
17019 2021-01-13  Julian Brown  <julian@codesourcery.com>
17020
17021         * config/gcn/gcn.c (gcn_md_reorg): Fix case where EXEC reg is live
17022         on entry to a BB.
17023
17024 2021-01-13  Julian Brown  <julian@codesourcery.com>
17025
17026         * config/gcn/gcn-valu.md (recip<mode>2<exec>, recip<mode>2): Use unspec
17027         for reciprocal-approximation instructions.
17028         (div<mode>3): Use fused multiply-accumulate operations for reciprocal
17029         refinement and division result.
17030         * config/gcn/gcn.md (UNSPEC_RCP): New unspec constant.
17031
17032 2021-01-13  Julian Brown  <julian@codesourcery.com>
17033
17034         * config/gcn/gcn-valu.md (subdf): Rename to...
17035         (subdf3): This.
17036
17037 2021-01-12  Martin Liska  <mliska@suse.cz>
17038
17039         * gcov.c (source_info::debug): Fix printf format for 32-bit hosts.
17040
17041 2021-01-12  Andrea Corallo  <andrea.corallo@arm.com>
17042
17043         * function-abi.h: Fix typo.
17044
17045 2021-01-12  Christophe Lyon  <christophe.lyon@linaro.org>
17046
17047         PR target/97875
17048         PR target/97875
17049         * config/arm/arm.h (ARM_HAVE_NEON_V8QI_LDST): New macro.
17050         (ARM_HAVE_NEON_V16QI_LDST, ARM_HAVE_NEON_V4HI_LDST): Likewise.
17051         (ARM_HAVE_NEON_V8HI_LDST, ARM_HAVE_NEON_V2SI_LDST): Likewise.
17052         (ARM_HAVE_NEON_V4SI_LDST, ARM_HAVE_NEON_V4HF_LDST): Likewise.
17053         (ARM_HAVE_NEON_V8HF_LDST, ARM_HAVE_NEON_V4BF_LDST): Likewise.
17054         (ARM_HAVE_NEON_V8BF_LDST, ARM_HAVE_NEON_V2SF_LDST): Likewise.
17055         (ARM_HAVE_NEON_V4SF_LDST, ARM_HAVE_NEON_DI_LDST): Likewise.
17056         (ARM_HAVE_NEON_V2DI_LDST): Likewise.
17057         (ARM_HAVE_V8QI_LDST, ARM_HAVE_V16QI_LDST): Likewise.
17058         (ARM_HAVE_V4HI_LDST, ARM_HAVE_V8HI_LDST): Likewise.
17059         (ARM_HAVE_V2SI_LDST, ARM_HAVE_V4SI_LDST, ARM_HAVE_V4HF_LDST): Likewise.
17060         (ARM_HAVE_V8HF_LDST, ARM_HAVE_V4BF_LDST, ARM_HAVE_V8BF_LDST): Likewise.
17061         (ARM_HAVE_V2SF_LDST, ARM_HAVE_V4SF_LDST, ARM_HAVE_DI_LDST): Likewise.
17062         (ARM_HAVE_V2DI_LDST): Likewise.
17063         * config/arm/mve.md (*movmisalign<mode>_mve_store): New pattern.
17064         (*movmisalign<mode>_mve_load): New pattern.
17065         * config/arm/neon.md (movmisalign<mode>): Move to ...
17066         * config/arm/vec-common.md: ... here.
17067
17068 2021-01-12  Vladimir N. Makarov  <vmakarov@redhat.com>
17069
17070         PR target/97969
17071         * lra-eliminations.c (eliminate_regs_in_insn): Add transformation
17072         of pattern 'plus (plus (hard reg, const), pseudo)'.
17073
17074 2021-01-12  Richard Biener  <rguenther@suse.de>
17075
17076         PR tree-optimization/98550
17077         * tree-vect-slp.c (vect_record_max_nunits): Check whether
17078         the group size is a multiple of the vector element count.
17079         (vect_build_slp_tree_1): When we need to fail because
17080         the vector type choosen causes unrolling do so lazily
17081         without affecting matches only at the end to guide group splitting.
17082
17083 2021-01-12  Martin Liska  <mliska@suse.cz>
17084
17085         PR c++/97284
17086         * optc-save-gen.awk: Compare also n_target_save vars with
17087         strcmp.
17088
17089 2021-01-12  Martin Liska  <mliska@suse.cz>
17090
17091         * gcov.c (source_info::debug): New.
17092         (print_usage): Add --debug (-D) option.
17093         (process_args): Likewise.
17094         (generate_results): Call src->debug after
17095         accumulate_line_counts.
17096         (read_graph_file): Properly assign id for EXIT_BLOCK.
17097         * profile.c (branch_prob): Dump function body before it is
17098         instrumented.
17099
17100 2021-01-12  Jakub Jelinek  <jakub@redhat.com>
17101
17102         PR tree-optimization/98629
17103         * tree-ssa-math-opts.c (arith_overflow_check_p): Don't update use_stmt
17104         unless returning non-zero.
17105
17106 2021-01-12  Jakub Jelinek  <jakub@redhat.com>
17107
17108         PR tree-optimization/95731
17109         * tree-ssa-reassoc.c (optimize_range_tests_cmp_bitwise): Also optimize
17110         x < 0 && y < 0 && z < 0 into (x | y | z) < 0 for signed x, y, z.
17111         (optimize_range_tests): Call optimize_range_tests_cmp_bitwise
17112         only after optimize_range_tests_var_bound.
17113
17114 2021-01-12  Jakub Jelinek  <jakub@redhat.com>
17115
17116         * configure.ac: Ensure c/Make-lang.in comes first in @all_lang_makefrags@.
17117         * configure: Regenerated.
17118
17119 2021-01-12  liuhongt  <hongtao.liu@intel.com>
17120
17121         PR target/98612
17122         * config/i386/i386-builtins.h (BUILTIN_DESC_SWAP_OPERANDS):
17123         Deleted.
17124         * config/i386/i386-expand.c (ix86_expand_sse_comi): Delete
17125         dead code.
17126
17127 2021-01-12  Alexandre Oliva  <oliva@adacore.com>
17128
17129         * ssa-iterators.h (end_imm_use_stmt_traverse): Forward
17130         declare.
17131         (auto_end_imm_use_stmt_traverse): New struct.
17132         (FOR_EACH_IMM_USE_STMT): Use it.
17133         (BREAK_FROM_IMM_USE_STMT, RETURN_FROM_IMM_USE_STMT): Remove,
17134         along with uses...
17135         * gimple-ssa-strength-reduction.c: ... here, ...
17136         * graphite-scop-detection.c: ... here, ...
17137         * ipa-modref.c, ipa-pure-const.c, ipa-sra.c: ... here, ...
17138         * tree-predcom.c, tree-ssa-ccp.c: ... here, ...
17139         * tree-ssa-dce.c, tree-ssa-dse.c: ... here, ...
17140         * tree-ssa-loop-ivopts.c, tree-ssa-math-opts.c: ... here, ...
17141         * tree-ssa-phiprop.c, tree-ssa.c: ... here, ...
17142         * tree-vect-slp.c: ... and here, ...
17143         * doc/tree-ssa.texi: ... and the example here.
17144
17145 2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>
17146
17147         * config/aarch64/aarch64-sve.md (sdiv_pow2<mode>3): Extend from
17148         SVE_FULL_I to SVE_I.  Generate an UNSPEC_PRED_X.
17149         (*sdiv_pow2<mode>3): New pattern.
17150         (@cond_<sve_int_op><mode>): Extend from SVE_FULL_I to SVE_I.
17151         Wrap the ASRD in an UNSPEC_PRED_X.
17152         (*cond_<sve_int_op><mode>_2): Likewise.  Replace the UNSPEC_PRED_X
17153         predicate with a constant PTRUE, if it isn't already.
17154         (*cond_<sve_int_op><mode>_z): Replace with...
17155         (*cond_<sve_int_op><mode>_any): ...this new pattern.
17156
17157 2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>
17158
17159         * config/aarch64/aarch64-sve.md (*cond_bic<mode>_2): Extend from
17160         SVE_FULL_I to SVE_I.
17161         (*cond_bic<mode>_any): Likewise.
17162
17163 2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>
17164
17165         * config/aarch64/aarch64-sve.md (<su>mul<mode>3_highpart)
17166         (@aarch64_pred_<MUL_HIGHPART:optab><mode>): Extend from SVE_FULL_I
17167         to SVE_I.
17168
17169 2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>
17170
17171         * config/aarch64/aarch64-sve.md (<su>abd<mode>_3): Extend from
17172         SVE_FULL_I to SVE_I.
17173         (*aarch64_cond_<su>abd<mode>_2): Likewise.
17174         (*aarch64_cond_<su>abd<mode>_any): Likewise.
17175         (@aarch64_pred_<su>abd<mode>): Likewise.  Use UNSPEC_PRED_X
17176         for the max and min but not for the minus.
17177         (*aarch64_cond_<su>abd<mode>_3): New pattern.
17178
17179 2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>
17180
17181         * config/aarch64/iterators.md (SVE_24I): New iterator.
17182         * config/aarch64/aarch64-sve.md (*aarch64_adr<mode>_shift): Extend from
17183         SVE_FULL_SDI to SVE_24I.  Use containers rather than elements.
17184
17185 2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>
17186
17187         * config/aarch64/aarch64-sve.md (@cond_<SVE_INT_BINARY:optab><mode>)
17188         (*cond_<SVE_INT_BINARY:optab><mode>_2): Extend from SVE_FULL_I
17189         to SVE_I.
17190         (*cond_<SVE_INT_BINARY:optab><mode>_3): Likewise.
17191         (*cond_<SVE_INT_BINARY:optab><mode>_any): Likewise.
17192         (*cond_<SVE_INT_BINARY:optab><mode>_2_const): Likewise.
17193         (*cond_<SVE_INT_BINARY:optab><mode>_any_const): Likewise.
17194
17195 2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>
17196
17197         * config/aarch64/aarch64-sve.md (<SVE_INT_BINARY_IMM:optab><mode>3)
17198         (@aarch64_pred_<SVE_INT_BINARY_IMM:optab><mode>)
17199         (*post_ra_<SVE_INT_BINARY_IMM:optab><mode>3): Extend from SVE_FULL_I
17200         to SVE_I.
17201
17202 2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>
17203
17204         * config/aarch64/aarch64-sve.md (<ASHIFT:optab><mode>3)
17205         (v<ASHIFT:optab><mode>3, @aarch64_pred_<optab><mode>)
17206         (*post_ra_v<ASHIFT:optab><mode>3): Extend from SVE_FULL_I to SVE_I.
17207
17208 2021-01-11  Martin Liska  <mliska@suse.cz>
17209
17210         PR jit/98615
17211         * symtab-clones.h (clone_info::release): Release
17212         symtab::m_clones with ggc_delete as it's a GGC memory.
17213
17214 2021-01-11  Matthias Klose  <doko@ubuntu.com>
17215
17216         * Makefile.in (LINK_PROGRESS): Show the link target.
17217
17218 2021-01-11  Richard Biener  <rguenther@suse.de>
17219
17220         PR tree-optimization/91403
17221         * tree-vect-data-refs.c (vect_analyze_group_access_1): Cap
17222         single-element interleaving group size at 4096 elements.
17223
17224 2021-01-11  Richard Biener  <rguenther@suse.de>
17225
17226         PR tree-optimization/98526
17227         * tree-vect-loop.c (vect_model_reduction_cost): Remove costing
17228         of the actual reduction op for the regular case.
17229         (vectorizable_reduction): Cost the stmts
17230         vect_transform_reduction produces here.
17231
17232 2021-01-11  Andreas Krebbel  <krebbel@linux.ibm.com>
17233
17234         * tree-ssa-forwprop.c (simplify_vector_constructor): For
17235         big-endian, use UNPACK[_FLOAT]_HI.
17236
17237 2021-01-11  Tamar Christina  <tamar.christina@arm.com>
17238
17239         * tree-vect-slp-patterns.c (class complex_pattern,
17240         class complex_add_pattern): Add parameters to matches.
17241         (complex_add_pattern::build): Free memory.
17242         (complex_add_pattern::matches): Move validation end of match.
17243         (complex_add_pattern::recognize): Likewise.
17244
17245 2021-01-11  Tamar Christina  <tamar.christina@arm.com>
17246
17247         * tree-vect-slp-patterns.c (linear_loads_p): Fix externals.
17248
17249 2021-01-11  Tamar Christina  <tamar.christina@arm.com>
17250
17251         * tree-vect-slp-patterns.c (is_linear_load_p): Fix ambiguity.
17252
17253 2021-01-11  Jakub Jelinek  <jakub@redhat.com>
17254
17255         PR tree-optimization/95867
17256         * tree-ssa-math-opts.h: New header.
17257         * tree-ssa-math-opts.c: Include tree-ssa-math-opts.h.
17258         (powi_as_mults): No longer static.  Use build_one_cst instead of
17259         build_real.  Formatting fix.
17260         * tree-ssa-reassoc.c: Include tree-ssa-math-opts.h.
17261         (attempt_builtin_powi): Handle multiplication reassociation without
17262         powi_fndecl using powi_as_mults.
17263         (reassociate_bb): For integral types don't require
17264         -funsafe-math-optimizations to call attempt_builtin_powi.
17265
17266 2021-01-11  Jakub Jelinek  <jakub@redhat.com>
17267
17268         PR tree-optimization/95852
17269         * tree-ssa-math-opts.c (maybe_optimize_guarding_check): Change
17270         mul_stmts parameter type to vec<gimple *> &.  Before cond_stmt
17271         allow in the bb any of the stmts in that vector, div_stmt and
17272         up to 3 cast stmts.
17273         (arith_cast_equal_p): New function.
17274         (arith_overflow_check_p): Add cast_stmt argument, handle signed
17275         multiply overflow checks.
17276         (match_arith_overflow): Adjust caller.  Handle signed multiply
17277         overflow checks.
17278
17279 2021-01-11  Jakub Jelinek  <jakub@redhat.com>
17280
17281         PR tree-optimization/95852
17282         * tree-ssa-math-opts.c (maybe_optimize_guarding_check): New function.
17283         (uaddsub_overflow_check_p): Renamed to ...
17284         (arith_overflow_check_p): ... this.  Handle also multiplication
17285         with overflow check.
17286         (match_uaddsub_overflow): Renamed to ...
17287         (match_arith_overflow): ... this.  Add cfg_changed argument.  Handle
17288         also multiplication with overflow check.  Adjust function comment.
17289         (math_opts_dom_walker::after_dom_children): Adjust callers.  Call
17290         match_arith_overflow also for MULT_EXPR.
17291
17292 2021-01-11  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
17293
17294         * config/aarch64/arm_neon.h (vmovl_s8): Reimplement using
17295         __builtin_convertvector.
17296         (vmovl_s16): Likewise.
17297         (vmovl_s32): Likewise.
17298         (vmovl_u8): Likewise.
17299         (vmovl_u16): Likewise.
17300         (vmovl_u32): Likewise.
17301         (vmovn_s16): Likewise.
17302         (vmovn_s32): Likewise.
17303         (vmovn_s64): Likewise.
17304         (vmovn_u16): Likewise.
17305         (vmovn_u32): Likewise.
17306         (vmovn_u64): Likewise.
17307
17308 2021-01-11  Martin Liska  <mliska@suse.cz>
17309
17310         * gimple-if-to-switch.cc (struct condition_info): Use auto_var.
17311         (if_chain::is_beneficial): Delete clusters
17312         (find_conditions): Make second argument of conditions_in_bbs a
17313         pointer so that we control over it's lifetime.
17314         (pass_if_to_switch::execute): Delete them.
17315
17316 2021-01-11  Kewen Lin  <linkw@linux.ibm.com>
17317
17318         * ira.c (move_unallocated_pseudos): Check other_reg and skip if
17319         it isn't set.
17320
17321 2021-01-09  Maciej W. Rozycki  <macro@linux-mips.org>
17322
17323         * config/vax/vax.md (cc): Remove mode attribute.
17324         (subst_<cc>, subst_f<cc>): Rename to...
17325         (subst_<mode>, subst_f<VAXccnz:mode>): ... these respectively.
17326         (*cbranch<VAXint:mode>4_<VAXcc:mode>): Update for `cc' removal.
17327         (*cbranch<VAXfp:mode>4_<VAXccnz:mode>): Likewise.
17328         (*branch_<mode>, *branch_<mode>_reversed): Likewise.
17329
17330 2021-01-09  Maciej W. Rozycki  <macro@linux-mips.org>
17331
17332         * config/vax/vax.md (subst_f<cc>): Add mode to operands and
17333         `const_double_zero'.
17334
17335 2021-01-09  Maciej W. Rozycki  <macro@linux-mips.org>
17336
17337         * config/pdp11/pdp11.md (PDPfp): New mode iterator.
17338         (fcc_cc, fcc_ccnz): Use it.  Add mode to `const_double_zero' and
17339         operands.
17340
17341 2021-01-09  Maciej W. Rozycki  <macro@linux-mips.org>
17342
17343         * genemit.c (gen_exp) <CONST_DOUBLE>: Handle `const_double_zero'
17344         rtx.
17345         * read-rtl.c (rtx_reader::read_rtx_code): Handle machine mode
17346         with `const_double_zero'.
17347         * doc/rtl.texi (Constant Expression Types): Document it.
17348
17349 2021-01-09  Jakub Jelinek  <jakub@redhat.com>
17350
17351         PR c++/98556
17352         * tree-cfg.c (verify_gimple_assign_binary): Allow lhs of
17353         POINTER_DIFF_EXPR to be any integral type.
17354
17355 2021-01-09  Jakub Jelinek  <jakub@redhat.com>
17356
17357         PR rtl-optimization/98603
17358         * function.c (instantiate_virtual_regs_in_insn): For asm goto
17359         with impossible constraints, drop all SETs, CLOBBERs, drop PARALLEL
17360         if any, set ASM_OPERANDS mode to VOIDmode and change
17361         ASM_OPERANDS_OUTPUT_CONSTRAINT and ASM_OPERANDS_OUTPUT_IDX.
17362
17363 2021-01-09  Alexandre Oliva  <oliva@gnu.org>
17364
17365         PR debug/97714
17366         * final.c (notice_source_line): Narrow down the condition to
17367         skip a line-0 marker.
17368
17369 2021-01-08  Sergei Trofimovich  <siarheit@google.com>
17370
17371         * ipa-modref.c (merge_call_side_effects): Fix
17372         linebreak split by reordering two print calls.
17373
17374 2021-01-08  Ilya Leoshkevich  <iii@linux.ibm.com>
17375
17376         * config/s390/vector.md (*tf_to_fprx2_0): Rename from
17377         "*mov_tf_to_fprx2_0" for consistency, fix constraint.
17378         (*tf_to_fprx2_1): Rename from "*mov_tf_to_fprx2_1" for
17379         consistency, fix constraint.
17380
17381 2021-01-08  Ilya Leoshkevich  <iii@linux.ibm.com>
17382
17383         * config/s390/s390-c.c (s390_def_or_undef_macro): Accept
17384         callables instead of mask values.
17385         (struct target_flag_set_p): New predicate.
17386         (s390_cpu_cpp_builtins_internal): Define or undefine
17387         __LONG_DOUBLE_VX__ macro.
17388
17389 2021-01-08  H.J. Lu  <hjl.tools@gmail.com>
17390
17391         PR target/98482
17392         * config/i386/i386.c (x86_function_profiler): Use R10 and R11
17393         to call mcount in large model with PIC for NO_PROFILE_COUNTERS
17394         targets.
17395
17396 2021-01-08  Richard Biener  <rguenther@suse.de>
17397
17398         * tree-ssa-sccvn.c (pass_fre::execute): Reset the SCEV hash table.
17399
17400 2021-01-08  Richard Biener  <rguenther@suse.de>
17401
17402         * tree-vect-slp.c (scalar_stmts_to_slp_tree_map_t): Fix.
17403         (vect_build_slp_tree): On cache hit release the matched
17404         scalar stmts vector.
17405         * tree-vect-stmts.c (vectorizable_store): Properly free
17406         vec_oprnds before possibly gathering them again.
17407
17408 2021-01-08  Richard Biener  <rguenther@suse.de>
17409
17410         PR tree-optimization/98544
17411         * tree-vect-slp.c (vect_optimize_slp): Always materialize
17412         permutes at a permute node.
17413
17414 2021-01-08  H.J. Lu  <hjl.tools@gmail.com>
17415
17416         PR target/98482
17417         * config/i386/i386.c (x86_function_profiler): Use R10 to call
17418         mcount in large model.  Sorry for large model with PIC.
17419
17420 2021-01-08  Jakub Jelinek  <jakub@redhat.com>
17421
17422         PR target/98585
17423         * config/i386/i386.opt (ix86_cmodel, ix86_incoming_stack_boundary_arg,
17424         ix86_pmode, ix86_preferred_stack_boundary_arg, ix86_regparm,
17425         ix86_veclibabi_type): Remove x_ prefix, use TargetVariable instead of
17426         TargetSave and initialize for variables with enum types.
17427         (mfentry, mstack-protector-guard-reg=, mstack-protector-guard-offset=,
17428         mstack-protector-guard-symbol=): Add Save.
17429         * config/i386/i386-options.c (ix86_function_specific_save,
17430         ix86_function_specific_restore): Don't save or restore x_ix86_cmodel,
17431         x_ix86_incoming_stack_boundary_arg, x_ix86_pmode,
17432         x_ix86_preferred_stack_boundary_arg, x_ix86_regparm,
17433         x_ix86_veclibabi_type.
17434
17435 2021-01-08  Richard Sandiford  <richard.sandiford@arm.com>
17436
17437         * config/aarch64/aarch64-sve.md (*cnot<mode>): Extend from
17438         SVE_FULL_I to SVE_I.
17439         (*cond_cnot<mode>_2, *cond_cnot<mode>_any): Likewise.
17440
17441 2021-01-08  Richard Sandiford  <richard.sandiford@arm.com>
17442
17443         * config/aarch64/aarch64-sve.md (*cond_uxt<mode>_2): Extend from
17444         SVE_FULL_I to SVE_I.
17445         (*cond_uxt<mode>_any): Likewise.
17446
17447 2021-01-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
17448
17449         * config/aarch64/iterators.md (Vwhalf): New iterator.
17450         * config/aarch64/aarch64-simd.md (aarch64_<sur>adalp<mode>_3):
17451         Rename to...
17452         (aarch64_<sur>adalp<mode>): ... This.  Make more
17453         builtin-friendly.
17454         (<sur>sadv16qi): Adjust callsite of the above.
17455         * config/aarch64/aarch64-simd-builtins.def (sadalp, uadalp): New
17456         builtins.
17457         * config/aarch64/arm_neon.h (vpadal_s8): Reimplement using
17458         builtins.
17459         (vpadal_s16): Likewise.
17460         (vpadal_u8): Likewise.
17461         (vpadal_u16): Likewise.
17462         (vpadalq_s8): Likewise.
17463         (vpadalq_s16): Likewise.
17464         (vpadalq_s32): Likewise.
17465         (vpadalq_u8): Likewise.
17466         (vpadalq_u16): Likewise.
17467         (vpadalq_u32): Likewise.
17468
17469 2021-01-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
17470
17471         * config/aarch64/aarch64-simd.md (aarch64_<su>abd<mode>_3):
17472         Rename to...
17473         (aarch64_<su>abd<mode>): ... This.
17474         (<sur>sadv16qi): Adjust callsite of the above.
17475         * config/aarch64/aarch64-simd-builtins.def (sabd, uabd): Define
17476         builtins.
17477         * config/aarch64/arm_neon.h (vabd_s8): Reimplement using
17478         builtin.
17479         (vabd_s16): Likewise.
17480         (vabd_s32): Likewise.
17481         (vabd_u8): Likewise.
17482         (vabd_u16): Likewise.
17483         (vabd_u32): Likewise.
17484         (vabdq_s8): Likewise.
17485         (vabdq_s16): Likewise.
17486         (vabdq_s32): Likewise.
17487         (vabdq_u8): Likewise.
17488         (vabdq_u16): Likewise.
17489         (vabdq_u32): Likewise.
17490
17491 2021-01-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
17492
17493         * config/aarch64/aarch64-simd-builtins.def (saba, uaba): Define
17494         builtins.
17495         * config/aarch64/arm_neon.h (vaba_s8): Implement using builtin.
17496         (vaba_s16): Likewise.
17497         (vaba_s32): Likewise.
17498         (vaba_u8): Likewise.
17499         (vaba_u16): Likewise.
17500         (vaba_u32): Likewise.
17501         (vabaq_s8): Likewise.
17502         (vabaq_s16): Likewise.
17503         (vabaq_s32): Likewise.
17504         (vabaq_u8): Likewise.
17505         (vabaq_u16): Likewise.
17506         (vabaq_u32): Likewise.
17507
17508 2021-01-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
17509
17510         * config/aarch64/aarch64-simd.md (aba<mode>_3): Rename to...
17511         (aarch64_<su>aba<mode>): ... This.  Handle uaba as well.
17512         Change RTL pattern to match.
17513
17514 2021-01-08  Kito Cheng  <kito.cheng@sifive.com>
17515
17516         * common/config/riscv/riscv-common.c (riscv_current_subset_list): New.
17517         * config/riscv/riscv-c.c (riscv-subset.h): New.
17518         (INCLUDE_STRING): Define.
17519         (riscv_cpu_cpp_builtins): Add new style architecture extension
17520         test macros.
17521         * config/riscv/riscv-subset.h (riscv_subset_list::begin): New.
17522         (riscv_subset_list::end): New.
17523         (riscv_current_subset_list): New.
17524
17525 2021-01-08  Kito Cheng  <kito.cheng@sifive.com>
17526
17527         * common/config/riscv/riscv-common.c (RISCV_DONT_CARE_VERSION):
17528         Move to riscv-subset.h.
17529         (struct riscv_subset_t): Ditto.
17530         (class riscv_subset_list): Ditto.
17531         * config/riscv/riscv-subset.h (RISCV_DONT_CARE_VERSION): Move
17532         from riscv-common.c.
17533         (struct riscv_subset_t): Ditto.
17534         (class riscv_subset_list): Ditto.
17535         * config/riscv/t-riscv ($(common_out_file)): Add file
17536         dependency.
17537
17538 2021-01-07  Jakub Jelinek  <jakub@redhat.com>
17539
17540         PR target/98567
17541         * config/i386/i386.md (*bmi_blsi_<mode>_cmp, *bmi_blsi_<mode>_ccno):
17542         New define_insn patterns.
17543
17544 2021-01-07  Richard Sandiford  <richard.sandiford@arm.com>
17545
17546         * config/aarch64/aarch64-sve.md (@cond_<SVE_INT_UNARY:optab><mode>)
17547         (*cond_<SVE_INT_UNARY:optab><mode>_2): Extend from SVE_FULL_I to SVE_I.
17548         (*cond_<SVE_INT_UNARY:optab><mode>_any): Likewise.
17549
17550 2021-01-07  Richard Sandiford  <richard.sandiford@arm.com>
17551
17552         PR tree-optimization/98560
17553         * internal-fn.def (IFN_VCONDU, IFN_VCONDEQ): Use type vec_cond.
17554         * internal-fn.c (vec_cond_mask_direct): Get the data mode from
17555         argument 1.
17556         (vec_cond_direct): Likewise argument 2.
17557         (vec_condu_direct, vec_condeq_direct): Delete.
17558         (expand_vect_cond_optab_fn): Rename to...
17559         (expand_vec_cond_optab_fn): ...this, replacing old macro.
17560         (expand_vec_condu_optab_fn, expand_vec_condeq_optab_fn): Delete.
17561         (expand_vect_cond_mask_optab_fn): Rename to...
17562         (expand_vec_cond_mask_optab_fn): ...this, replacing old macro.
17563         (direct_vec_cond_mask_optab_supported_p): Treat the optab as a
17564         convert optab.
17565         (direct_vec_cond_optab_supported_p): Likewise.
17566         (direct_vec_condu_optab_supported_p): Delete.
17567         (direct_vec_condeq_optab_supported_p): Delete.
17568         * gimple-isel.cc: Include internal-fn.h.
17569         (gimple_expand_vec_cond_expr): Check that IFN_VCONDEQ is supported
17570         before using it.
17571
17572 2021-01-07  Richard Sandiford  <richard.sandiford@arm.com>
17573
17574         PR tree-optimization/98560
17575         * gimple-isel.cc (gimple_expand_vec_cond_expr): If we fail to use
17576         IFN_VCOND{,U,EQ}, fall back on IFN_VCOND_MASK.
17577
17578 2021-01-07  Uroš Bizjak  <ubizjak@gmail.com>
17579
17580         * config/i386/i386.md (insn): Merge from plusminus_insn, shift_insn,
17581         rotate_insn and optab code attributes.
17582         Update all uses to merged code attribute.
17583         * config/i386/sse.md: Update all uses to merged code attribute.
17584         * config/i386/mmx.md: Update all uses to merged code attribute.
17585
17586 2021-01-07  Jakub Jelinek  <jakub@redhat.com>
17587
17588         PR tree-optimization/98568
17589         * gimple-ssa-store-merging.c (bswap_view_convert): New function.
17590         (bswap_replace): Use it.
17591
17592 2021-01-06  Vladimir N. Makarov  <vmakarov@redhat.com>
17593
17594         PR rtl-optimization/97978
17595         * lra-int.h (lra_hard_reg_split_p): New external.
17596         * lra.c (lra_hard_reg_split_p): New global.
17597         (lra): Set up lra_hard_reg_split_p after splitting a hard reg.
17598         * lra-assigns.c (lra_assign): Don't check allocation correctness
17599         after hard reg splitting.
17600
17601 2021-01-06  Martin Sebor  <msebor@redhat.com>
17602
17603         PR c++/98305
17604         * builtins.c (new_delete_mismatch_p): New overload.
17605         (new_delete_mismatch_p (tree, tree)): Call it.
17606
17607 2021-01-06  Alexandre Oliva  <oliva@adacore.com>
17608
17609         * Makefile.in (T_GLIMITS_H): New.
17610         (stmp-int-hdrs): Depend on it, use it.
17611         * config/t-vxworks (T_GLIMITS_H): Override it.
17612         (vxw-glimits.h): New.
17613
17614 2021-01-06  Richard Biener  <rguenther@suse.de>
17615
17616         PR tree-optimization/98513
17617         * value-range.cc (intersect_ranges): Compare the upper bounds
17618         for the expected relation.
17619
17620 2021-01-06  Gerald Pfeifer  <gerald@pfeifer.com>
17621
17622         Revert:
17623         2020-12-28  Gerald Pfeifer  <gerald@pfeifer.com>
17624
17625         * doc/standards.texi (HSAIL): Remove section.
17626
17627 2021-01-05  Samuel Thibault  <samuel.thibault@ens-lyon.org>
17628
17629         * configure: Re-generate.
17630
17631 2021-01-05  Jakub Jelinek  <jakub@redhat.com>
17632
17633         * doc/invoke.texi (-std=c++20): Adjust for the publication of
17634         ISO 14882:2020 standard.
17635         * doc/standards.texi: Likewise.
17636
17637 2021-01-05  Jakub Jelinek  <jakub@redhat.com>
17638
17639         PR tree-optimization/94802
17640         * expr.h (maybe_optimize_sub_cmp_0): Declare.
17641         * expr.c: Include tree-pretty-print.h and flags.h.
17642         (maybe_optimize_sub_cmp_0): New function.
17643         (do_store_flag): Use it.
17644         * cfgexpand.c (expand_gimple_cond): Likewise.
17645
17646 2021-01-05  Richard Sandiford  <richard.sandiford@arm.com>
17647
17648         * mux-utils.h (pointer_mux::m_ptr): Tweak description of contents.
17649         * rtlanal.c (simple_regno_set): Tweak description to clarify the
17650         RMW condition.
17651
17652 2021-01-05  Richard Biener  <rguenther@suse.de>
17653
17654         PR tree-optimization/98516
17655         * tree-vect-slp.c (vect_optimize_slp): Permute the incoming
17656         lanes when materializing on a VEC_PERM node.
17657         (vectorizable_slp_permutation): Dump the permute properly.
17658
17659 2021-01-05  Richard Biener  <rguenther@suse.de>
17660
17661         * tree-vect-slp.c (vect_slp_region): Move debug counter
17662         to cover individual subgraphs.
17663
17664 2021-01-05  Richard Biener  <rguenther@suse.de>
17665
17666         PR tree-optimization/98428
17667         * tree-vect-slp.c (vect_build_slp_tree_1): Properly reject
17668         vector lane extracts for loop vectorization.
17669
17670 2021-01-05  Jakub Jelinek  <jakub@redhat.com>
17671
17672         PR tree-optimization/98514
17673         * tree-ssa-reassoc.c (bb_rank): Change type from long * to
17674         int64_t *.
17675         (operand_rank): Change type from hash_map<tree, long> to
17676         hash_map<tree, int64_t>.
17677         (phi_rank): Change return type from long to int64_t.
17678         (loop_carried_phi): Change block_rank variable type from long to
17679         int64_t.
17680         (propagate_rank): Change return type, rank parameter type and
17681         op_rank variable type from long to int64_t.
17682         (find_operand_rank): Change return type from long to int64_t
17683         and change slot variable type from long * to int64_t *.
17684         (insert_operand_rank): Change rank parameter type from long to
17685         int64_t.
17686         (get_rank): Change return type and rank variable type from long to
17687         int64_t.  Use PRId64 instead of ld to print the rank.
17688         (init_reassoc): Change rank variable type from long to int64_t
17689         and adjust correspondingly bb_rank and operand_rank initialization.
17690
17691 2021-01-05  Jakub Jelinek  <jakub@redhat.com>
17692
17693         PR tree-optimization/96928
17694         * tree-ssa-phiopt.c (xor_replacement): New function.
17695         (tree_ssa_phiopt_worker): Call it.
17696
17697 2021-01-05  Jakub Jelinek  <jakub@redhat.com>
17698
17699         PR tree-optimization/96930
17700         * match.pd ((A / (1 << B)) -> (A >> B)): If A is extended
17701         from narrower value which has the same type as 1 << B, perform
17702         the right shift on the narrower value followed by extension.
17703
17704 2021-01-05  Jakub Jelinek  <jakub@redhat.com>
17705
17706         PR tree-optimization/96239
17707         * gimple-ssa-store-merging.c (maybe_optimize_vector_constructor): New
17708         function.
17709         (get_status_for_store_merging): Don't return BB_INVALID for blocks
17710         with potential bswap optimizable CONSTRUCTORs.
17711         (pass_store_merging::execute): Optimize vector CONSTRUCTORs with bswap
17712         if possible.
17713
17714 2021-01-05  Richard Biener  <rguenther@suse.de>
17715
17716         PR tree-optimization/98381
17717         * tree.c (vector_element_bits): Properly compute bool vector
17718         element size.
17719         * tree-vect-loop.c (vectorizable_live_operation): Properly
17720         compute the last lane bit offset.
17721
17722 2021-01-05  Uroš Bizjak  <ubizjak@gmail.com>
17723
17724         PR target/98522
17725         * config/i386/sse.md (sse_cvtps2pi): Redefine as define_insn_and_split.
17726         Clear the top 64 bytes of the input XMM register.
17727         (sse_cvttps2pi): Ditto.
17728
17729 2021-01-05  Uroš Bizjak  <ubizjak@gmail.com>
17730
17731         PR target/98521
17732         * config/i386/xopintrin.h (_mm256_cmov_si256): New.
17733
17734 2021-01-05  H.J. Lu  <hjl.tools@gmail.com>
17735
17736         PR target/98495
17737         * config/i386/xmmintrin.h (_mm_extract_pi16): Cast to unsigned
17738         short first.
17739
17740 2021-01-05  Claudiu Zissulescu  <claziss@synopsys.com>
17741
17742         * config/arc/arc.md (maddsidi4_split): Use ACC_REG_FIRST.
17743         (umaddsidi4_split): Likewise.
17744
17745 2021-01-05  liuhongt  <hongtao.liu@intel.com>
17746
17747         PR target/98461
17748         * config/i386/sse.md (*sse2_pmovskb_zexthisi): New
17749         define_insn_and_split for zero_extend of subreg HI of pmovskb
17750         result.
17751         (*sse2_pmovskb_zexthisi): Add new combine splitters for
17752         zero_extend of not of subreg HI of pmovskb result.
17753
17754 2021-01-05  Richard Sandiford  <richard.sandiford@arm.com>
17755
17756         PR target/97269
17757         * explow.c (convert_memory_address_addr_space_1): Handle UNSPECs
17758         nested in CONSTs.
17759         * config/aarch64/aarch64.c (aarch64_expand_mov_immediate): Use
17760         convert_memory_address to convert symbolic immediates to ptr_mode
17761         before forcing them to memory.
17762
17763 2021-01-05  Richard Sandiford  <richard.sandiford@arm.com>
17764
17765         PR rtl-optimization/97144
17766         * recog.c (constrain_operands): Initialize matching_operand
17767         for each alternative, rather than only doing it once.
17768
17769 2021-01-05  Richard Sandiford  <richard.sandiford@arm.com>
17770
17771         PR rtl-optimization/98403
17772         * rtl-ssa/changes.cc (function_info::finalize_new_accesses): Explain
17773         why we don't remove call clobbers.
17774         (function_info::apply_changes_to_insn): Don't attempt to add
17775         call clobbers here.
17776
17777 2021-01-05  Richard Sandiford  <richard.sandiford@arm.com>
17778
17779         PR tree-optimization/98371
17780         * tree-vect-loop.c (vect_reanalyze_as_main_loop): New function.
17781         (vect_analyze_loop): If an epilogue loop appears to be cheaper
17782         than the main loop, re-analyze it as a main loop before adopting
17783         it as a main loop.
17784
17785 2021-01-05  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
17786
17787         PR c++/98316
17788         * configure.ac (NETLIBS): Determine using AX_LIB_SOCKET_NSL.
17789         * aclocal.m4, configure: Regenerate.
17790         * Makefile.in (NETLIBS): Define.
17791         (BACKEND): Remove $(CODYLIB).
17792
17793 2021-01-05  Jakub Jelinek  <jakub@redhat.com>
17794
17795         PR rtl-optimization/98334
17796         * simplify-rtx.c (simplify_context::simplify_binary_operation_1):
17797         Optimize (X - 1) * Y + Y to X * Y or (X + 1) * Y - Y to X * Y.
17798
17799 2021-01-05  Bernd Edlinger  <bernd.edlinger@hotmail.de>
17800
17801         * tree-inline.c (expand_call_inline): Restore input_location.
17802         Return result from recursive call.
17803
17804 2021-01-04  Richard Sandiford  <richard.sandiford@arm.com>
17805
17806         PR tree-optimization/95401
17807         * config/aarch64/aarch64-sve-builtins.cc
17808         (gimple_folder::load_store_cookie): Use bits rather than bytes
17809         for the alignment argument to IFN_MASK_LOAD and IFN_MASK_STORE.
17810         * gimple-fold.c (gimple_fold_mask_load_store_mem_ref): Likewise.
17811         * tree-vect-stmts.c (vectorizable_store): Likewise.
17812         (vectorizable_load): Likewise.
17813
17814 2021-01-04  Richard Biener  <rguenther@suse.de>
17815
17816         PR tree-optimization/98308
17817         * tree-vect-stmts.c (vectorizable_load): Set invariant mask
17818         SLP vectype.
17819
17820 2021-01-04  Jakub Jelinek  <jakub@redhat.com>
17821
17822         PR tree-optimization/95771
17823         * tree-ssa-loop-niter.c (number_of_iterations_popcount): Handle types
17824         with precision smaller than int's precision and types with precision
17825         twice as large as long long.  Formatting fixes.
17826
17827 2021-01-04  Richard Biener  <rguenther@suse.de>
17828
17829         PR tree-optimization/98464
17830         * tree-ssa-sccvn.c (vn_valueize_for_srt): Rename from ...
17831         (vn_valueize_wrapper): ... this.  Temporarily adjust vn_context_bb.
17832         (process_bb): Adjust.
17833
17834 2021-01-04  Matthew Malcomson  <matthew.malcomson@arm.com>
17835
17836         PR other/98437
17837         * doc/invoke.texi (-fsanitize=address): Fix wording describing
17838         clash with -fsanitize=hwaddress.
17839
17840 2021-01-04  Richard Biener  <rguenther@suse.de>
17841
17842         PR tree-optimization/98282
17843         * tree-ssa-sccvn.c (vn_get_stmt_kind): Classify tcc_reference on
17844         invariants as VN_NARY.
17845
17846 2021-01-04  Richard Sandiford  <richard.sandiford@arm.com>
17847
17848         PR target/89057
17849         * config/aarch64/aarch64-simd.md (aarch64_combine<mode>): Accept
17850         aarch64_simd_reg_or_zero for operand 2.  Use the combinez patterns
17851         to handle zero operands.
17852
17853 2021-01-04  Richard Sandiford  <richard.sandiford@arm.com>
17854
17855         * config/aarch64/aarch64.c (offset_6bit_signed_scaled_p): New function.
17856         (offset_6bit_unsigned_scaled_p): Fix typo in comment.
17857         (aarch64_sve_prefetch_operand_p): Accept MUL VLs in the range
17858         [-32, 31].
17859
17860 2021-01-04  Richard Biener  <rguenther@suse.de>
17861
17862         PR tree-optimization/98393
17863         * tree-vect-slp.c (vect_build_slp_tree): Properly zero matches
17864         when hitting the limit.
17865
17866 2021-01-04  Richard Biener  <rguenther@suse.de>
17867
17868         PR tree-optimization/98291
17869         * tree-vect-loop.c (vectorizable_reduction): Bypass
17870         associativity check for SLP reductions with VF 1.
17871
17872 2021-01-04  Jakub Jelinek  <jakub@redhat.com>
17873
17874         PR tree-optimization/96782
17875         * match.pd (x == ~x -> false, x != ~x -> true): New simplifications.
17876
17877 2021-01-04  Bernd Edlinger  <bernd.edlinger@hotmail.de>
17878
17879         * collect-utils.c (collect_execute): Check dumppfx.
17880         * collect2.c (maybe_run_lto_and_relink, do_link): Pass atsuffix
17881         to collect_execute.
17882         (do_link): Add new parameter atsuffix.
17883         (main): Handle -dumpdir option.  Skip one argument for
17884         -o, -isystem and -B options.
17885         * gcc.c (make_at_file): New helper function.
17886         (close_at_file): Use it.
17887
17888 2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>
17889
17890         * config/darwin.h (MIN_LD64_NO_COAL_SECTS): Adjust.
17891         Amend handling for LD64_VERSION fallback defaults.
17892
17893 2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>
17894
17895         * config.gcc: Compute default version information
17896         from the configured target.  Likewise defaults for
17897         ld64.
17898         * config/darwin10.h: Removed.
17899         * config/darwin12.h: Removed.
17900         * config/darwin9.h: Removed.
17901         * config/rs6000/darwin8.h: Removed.
17902
17903 2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>
17904
17905         * config/darwin9.h (ASM_OUTPUT_ALIGNED_COMMON): Delete.
17906
17907 2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>
17908
17909         * config/darwin9.h (STACK_CHECK_STATIC_BUILTIN): Move from here..
17910         * config/darwin.h (STACK_CHECK_STATIC_BUILTIN): .. to here.
17911
17912 2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>
17913
17914         * config/darwin10.h (LINK_GCC_C_SEQUENCE_SPEC): Move from
17915         here...
17916         * config/darwin.h (LINK_GCC_C_SEQUENCE_SPEC): ... to here.
17917
17918 2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>
17919
17920         * config/darwin10.h (LINK_GCC_C_SEQUENCE_SPEC): Move the spec
17921         for the Darwin10 unwinder stub from here ...
17922         * config/darwin.h (LINK_COMMAND_SPEC_A): ... to here.
17923
17924 2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>
17925
17926         * config/darwin.h (DSYMUTIL_SPEC): Default to DWARF
17927         (ASM_DEBUG_SPEC):Only define if the assembler supports
17928         stabs.
17929         (PREFERRED_DEBUGGING_TYPE): Default to DWARF.
17930         (DARWIN_PREFER_DWARF): Define.
17931         * config/darwin9.h (PREFERRED_DEBUGGING_TYPE): Remove.
17932         (DARWIN_PREFER_DWARF): Likewise
17933         (DSYMUTIL_SPEC): Likewise.
17934         (COLLECT_RUN_DSYMUTIL): Likewise.
17935         (ASM_DEBUG_SPEC): Likewise.
17936         (ASM_DEBUG_OPTION_SPEC): Likewise.
17937
17938 2021-01-02  Jan Hubicka  <jh@suse.cz>
17939
17940         * cfg.c (free_block): ggc_free bb.
17941
17942 2021-01-01  Jakub Jelinek  <jakub@redhat.com>
17943
17944         * gcc.c (process_command): Update copyright notice dates.
17945         * gcov-dump.c (print_version): Ditto.
17946         * gcov.c (print_version): Ditto.
17947         * gcov-tool.c (print_version): Ditto.
17948         * gengtype.c (create_file): Ditto.
17949         * doc/cpp.texi: Bump @copying's copyright year.
17950         * doc/cppinternals.texi: Ditto.
17951         * doc/gcc.texi: Ditto.
17952         * doc/gccint.texi: Ditto.
17953         * doc/gcov.texi: Ditto.
17954         * doc/install.texi: Ditto.
17955         * doc/invoke.texi: Ditto.
17956
17957 2021-01-01  Jakub Jelinek  <jakub@redhat.com>
17958
17959         * ChangeLog-2020: Rotate ChangeLog.  New file.
17960
17961 \f
17962 Copyright (C) 2021 Free Software Foundation, Inc.
17963
17964 Copying and distribution of this file, with or without modification,
17965 are permitted in any medium without royalty provided the copyright
17966 notice and this notice are preserved.