gcc/ChangeLog

   1 2021-01-18  Vladimir N. Makarov  <vmakarov@redhat.com>
   2
   3         PR target/97847
   4         * ira.c (ira): Skip abnormal critical edge splitting.
   5
   6 2021-01-18  Jakub Jelinek  <jakub@redhat.com>
   7
   8         PR tree-optimization/98727
   9         * tree-ssa-math-opts.c (match_arith_overflow): Fix up computation of
  10         second .MUL_OVERFLOW operand for signed multiplication with overflow
  11         checking if the second operand of multiplication is not constant.
  12
  13 2021-01-18  David Edelsohn  <dje.gcc@gmail.com>
  14
  15         * doc/invoke.texi (-gdwarf): TPF defaults to version 2 and AIX
  16         defaults to version 4.
  17
  18 2021-01-18  David Malcolm  <dmalcolm@redhat.com>
  19
  20         * attribs.h (fndecl_dealloc_argno): New decl.
  21         * builtins.c (call_dealloc_argno): Split out second half of
  22         function into...
  23         (fndecl_dealloc_argno): New.
  24         * doc/extend.texi (Common Function Attributes): Document the
  25         interaction between the analyzer and the malloc attribute.
  26         * doc/invoke.texi (Static Analyzer Options): Likewise.
  27
  28 2021-01-17  David Edelsohn  <dje.gcc@gmail.com>
  29
  30         * config/rs6000/aix71.h (SUBTARGET_OVERRIDE_OPTIONS): Override
  31         dwarf_version to 4.
  32         * config/rs6000/aix72.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
  33
  34 2021-01-17  Martin Jambor  <mjambor@suse.cz>
  35
  36         PR ipa/98222
  37         * cgraph.c (clone_of_p): Check also former_clone_of as we climb
  38         the clone tree.
  39
  40 2021-01-17  Mark Wielaard  <mark@klomp.org>
  41
  42         * common.opt (gdwarf-): Init(5).
  43         * doc/invoke.texi (-gdwarf): Document default to 5.
  44
  45 2021-01-16  Kwok Cheung Yeung  <kcy@codesourcery.com>
  46
  47         * builtin-types.def
  48         (BT_FN_VOID_OMPFN_PTR_OMPCPYFN_LONG_LONG_BOOL_UINT_PTR_INT): Rename
  49         to...
  50         (BT_FN_VOID_OMPFN_PTR_OMPCPYFN_LONG_LONG_BOOL_UINT_PTR_INT_PTR):
  51         ...this.  Add extra argument.
  52         * gimplify.c (omp_default_clause): Ensure that event handle is
  53         firstprivate in a task region.
  54         (gimplify_scan_omp_clauses): Handle OMP_CLAUSE_DETACH.
  55         (gimplify_adjust_omp_clauses): Likewise.
  56         * omp-builtins.def (BUILT_IN_GOMP_TASK): Change function type to
  57         BT_FN_VOID_OMPFN_PTR_OMPCPYFN_LONG_LONG_BOOL_UINT_PTR_INT_PTR.
  58         * omp-expand.c (expand_task_call): Add GOMP_TASK_FLAG_DETACH to flags
  59         if detach clause specified.  Add detach argument when generating
  60         call to GOMP_task.
  61         * omp-low.c (scan_sharing_clauses): Setup data environment for detach
  62         clause.
  63         (finish_taskreg_scan): Move field for variable containing the event
  64         handle to the front of the struct.
  65         * tree-core.h (enum omp_clause_code): Add OMP_CLAUSE_DETACH.  Fix
  66         ordering.
  67         * tree-nested.c (convert_nonlocal_omp_clauses): Handle
  68         OMP_CLAUSE_DETACH clause.
  69         (convert_local_omp_clauses): Handle OMP_CLAUSE_DETACH clause.
  70         * tree-pretty-print.c (dump_omp_clause): Handle OMP_CLAUSE_DETACH.
  71         * tree.c (omp_clause_num_ops): Add entry for OMP_CLAUSE_DETACH.
  72         Fix ordering.
  73         (omp_clause_code_name): Add entry for OMP_CLAUSE_DETACH.  Fix
  74         ordering.
  75         (walk_tree_1): Handle OMP_CLAUSE_DETACH.
  76
  77 2021-01-16  Sebastian Huber  <sebastian.huber@embedded-brains.de>
  78
  79         * config/nios2/t-rtems: Reset all MULTILIB_* variables.  Shorten
  80         multilib directory names.  Use MULTILIB_REQUIRED instead of
  81         MULTILIB_EXCEPTIONS.  Add -mhw-mul -mhw-mulx -mhw-div
  82         -mcustom-fpu-cfg=fph2 multilib.
  83
  84 2021-01-16  Sebastian Huber  <sebastian.huber@embedded-brains.de>
  85
  86         * config/nios2/nios2.c (NIOS2_FPU_CONFIG_NUM): Adjust value.
  87         (nios2_init_fpu_configs): Provide register values for new
  88         -mcustom-fpu-cfg=fph2 option variant.
  89         * doc/invoke.texi (-mcustom-fpu-cfg=fph2): Document new option
  90         variant.
  91
  92 2021-01-16  Sebastian Huber  <sebastian.huber@embedded-brains.de>
  93
  94         * config/nios2/nios2.c (nios2_custom_check_insns): Remove
  95         custom instruction warnings.
  96
  97 2021-01-16  Jakub Jelinek  <jakub@redhat.com>
  98
  99         PR tree-optimization/96669
 100         * match.pd ((CST << x) & 1 -> x == 0): New simplification.
 101
 102 2021-01-16  Jakub Jelinek  <jakub@redhat.com>
 103
 104         PR tree-optimization/96271
 105         * passes.def: Pass false argument to first two pass_cd_dce
 106         instances and true to last instance.  Add comment that
 107         last instance rewrites no longer addressed locals.
 108         * tree-ssa-dce.c (pass_cd_dce): Add update_address_taken_p member and
 109         initialize it.
 110         (pass_cd_dce::set_pass_param): New method.
 111         (pass_cd_dce::execute): Return TODO_update_address_taken from
 112         last cd_dce instance.
 113
 114 2021-01-15  Carl Love  <cel@us.ibm.com>
 115
 116         * config/rs6000/altivec.h (vec_mulh, vec_div, vec_dive, vec_mod):
 117         New defines.
 118         * config/rs6000/altivec.md (VIlong): Move define to file vsx.md.
 119         * config/rs6000/rs6000-builtin.def (DIVES_V4SI, DIVES_V2DI,
 120         DIVEU_V4SI, DIVEU_V2DI, DIVS_V4SI, DIVS_V2DI, DIVU_V4SI,
 121         DIVU_V2DI, MODS_V2DI, MODS_V4SI, MODU_V2DI, MODU_V4SI,
 122         MULHS_V2DI, MULHS_V4SI, MULHU_V2DI, MULHU_V4SI, MULLD_V2DI):
 123         Add builtin define.
 124         (MULH, DIVE, MOD):  Add new BU_P10_OVERLOAD_2 definitions.
 125         * config/rs6000/rs6000-call.c (VSX_BUILTIN_VEC_DIV,
 126         VSX_BUILTIN_VEC_DIVE, P10_BUILTIN_VEC_MOD, P10_BUILTIN_VEC_MULH):
 127         New overloaded definitions.
 128         (builtin_function_type) [P10V_BUILTIN_DIVEU_V4SI,
 129         P10V_BUILTIN_DIVEU_V2DI, P10V_BUILTIN_DIVU_V4SI,
 130         P10V_BUILTIN_DIVU_V2DI, P10V_BUILTIN_MODU_V2DI,
 131         P10V_BUILTIN_MODU_V4SI, P10V_BUILTIN_MULHU_V2DI,
 132         P10V_BUILTIN_MULHU_V4SI]: Add case
 133         statement for builtins.
 134         * config/rs6000/rs6000.md (bits): Add new attribute sizes V4SI, V2DI.
 135         * config/rs6000/vsx.md (VIlong): Moved from config/rs6000/altivec.md.
 136         (UNSPEC_VDIVES, UNSPEC_VDIVEU): New unspec definitions.
 137         (vsx_mul_v2di): Add if TARGET_POWER10 statement.
 138         (vsx_udiv_v2di): Add if TARGET_POWER10 statement.
 139         (dives_<mode>, diveu_<mode>, div<mode>3, uvdiv<mode>3,
 140         mods_<mode>, modu_<mode>, mulhs_<mode>, mulhu_<mode>, mulv2di3):
 141         Add define_insn, mode is VIlong.
 142         * doc/extend.texi (vec_mulh, vec_mul, vec_div, vec_dive, vec_mod):
 143         Add builtin descriptions.
 144
 145 2021-01-15  Eric Botcazou  <ebotcazou@adacore.com>
 146
 147         * final.c (final_start_function_1): Reset force_source_line.
 148
 149 2021-01-15  Jakub Jelinek  <jakub@redhat.com>
 150
 151         PR tree-optimization/96669
 152         * match.pd (((1 << A) & 1) != 0 -> A == 0,
 153         ((1 << A) & 1) == 0 -> A != 0): Generalize for 1s replaced by
 154         possibly different power of two constants and to right shift too.
 155
 156 2021-01-15  Jakub Jelinek  <jakub@redhat.com>
 157
 158         PR tree-optimization/96681
 159         * match.pd ((x < 0) ^ (y < 0) to (x ^ y) < 0): New simplification.
 160         ((x >= 0) ^ (y >= 0) to (x ^ y) < 0): Likewise.
 161         ((x < 0) ^ (y >= 0) to (x ^ y) >= 0): Likewise.
 162         ((x >= 0) ^ (y < 0) to (x ^ y) >= 0): Likewise.
 163
 164 2021-01-15  Alexandre Oliva  <oliva@adacore.com>
 165
 166         * opts.c (gen_command_line_string): Exclude -dumpbase-ext.
 167
 168 2021-01-15  Tamar Christina  <tamar.christina@arm.com>
 169
 170         * config/aarch64/aarch64-simd.md (cml<fcmac1><conj_op><mode>4,
 171         cmul<conj_op><mode>3): New.
 172         * config/aarch64/iterators.md (UNSPEC_FCMUL,
 173         UNSPEC_FCMUL180, UNSPEC_FCMLA_CONJ, UNSPEC_FCMLA180_CONJ,
 174         UNSPEC_CMLA_CONJ, UNSPEC_CMLA180_CONJ, UNSPEC_CMUL, UNSPEC_CMUL180,
 175         FCMLA_OP, FCMUL_OP, conj_op, rotsplit1, rotsplit2, fcmac1, sve_rot1,
 176         sve_rot2, SVE2_INT_CMLA_OP, SVE2_INT_CMUL_OP, SVE2_INT_CADD_OP): New.
 177         (rot): Add UNSPEC_FCMUL, UNSPEC_FCMUL180.
 178         (rot_op): Renamed to conj_op.
 179         * config/aarch64/aarch64-sve.md (cml<fcmac1><conj_op><mode>4,
 180         cmul<conj_op><mode>3): New.
 181         * config/aarch64/aarch64-sve2.md (cml<fcmac1><conj_op><mode>4,
 182         cmul<conj_op><mode>3): New.
 183
 184 2021-01-15  David Malcolm  <dmalcolm@redhat.com>
 185
 186         PR bootstrap/98696
 187         * diagnostic.c
 188         (selftest::test_print_parseable_fixits_bytes_vs_display_columns):
 189         Escape the tempfile name when constructing the expected output.
 190
 191 2021-01-15  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 192
 193         * config/aarch64/aarch64-simd.md (*aarch64_<su>mlsl_hi<mode>):
 194         Rename to...
 195         (aarch64_<su>mlsl_hi<mode>): ... This.
 196         (aarch64_<su>mlsl_hi<mode>): Define.
 197         (*aarch64_<su>mlsl<mode): Rename to...
 198         (aarch64_<su>mlsl<mode): ... This.
 199         * config/aarch64/aarch64-simd-builtins.def (smlsl, umlsl,
 200         smlsl_hi, umlsl_hi): Define builtins.
 201         * config/aarch64/arm_neon.h (vmlsl_high_s8, vmlsl_high_s16,
 202         vmlsl_high_s32, vmlsl_high_u8, vmlsl_high_u16, vmlsl_high_u32,
 203         vmlsl_s8, vmlsl_s16, vmlsl_s32, vmlsl_u8,
 204         vmlsl_u16, vmlsl_u32): Reimplement with builtins.
 205
 206 2021-01-15  Uroš Bizjak  <ubizjak@gmail.com>
 207
 208         * config/i386/i386-c.c (ix86_target_macros):
 209         Use cpp_define_formatted for __SIZEOF_FLOAT80__ definition.
 210
 211 2021-01-15  Richard Sandiford  <richard.sandiford@arm.com>
 212
 213         PR target/88836
 214         * config.gcc (aarch64*-*-*): Add aarch64-cc-fusion.o to extra_objs.
 215         * Makefile.in (RTL_SSA_H): New variable.
 216         * config/aarch64/t-aarch64 (aarch64-cc-fusion.o): New rule.
 217         * config/aarch64/aarch64-protos.h (make_pass_cc_fusion): Declare.
 218         * config/aarch64/aarch64-passes.def: Add pass_cc_fusion after
 219         pass_combine.
 220         * config/aarch64/aarch64-cc-fusion.cc: New file.
 221
 222 2021-01-15  Richard Sandiford  <richard.sandiford@arm.com>
 223
 224         * recog.h (insn_change_watermark::~insn_change_watermark): Avoid
 225         calling cancel_changes for changes that no longer exist.
 226
 227 2021-01-15  Richard Sandiford  <richard.sandiford@arm.com>
 228
 229         * rtl-ssa/functions.h (function_info::ref_defs): Rename to...
 230         (function_info::reg_defs): ...this.
 231         * rtl-ssa/member-fns.inl (function_info::ref_defs): Rename to...
 232         (function_info::reg_defs): ...this.
 233
 234 2021-01-15  Christophe Lyon  <christophe.lyon@linaro.org>
 235
 236         PR target/71233
 237         * config/arm/arm_neon.h (vceqz_p64, vceqq_p64, vceqzq_p64): New.
 238
 239 2021-01-15  Christophe Lyon  <christophe.lyon@linaro.org>
 240
 241         Revert:
 242         2021-01-15  Christophe Lyon  <christophe.lyon@linaro.org>
 243
 244         PR target/71233
 245         * config/arm/arm_neon.h (vceqz_p64, vceqq_p64, vceqzq_p64): New.
 246
 247 2021-01-15  Richard Biener  <rguenther@suse.de>
 248
 249         PR tree-optimization/96376
 250         * tree-vect-stmts.c (get_load_store_type): Disregard alignment
 251         for VMAT_INVARIANT.
 252
 253 2021-01-15  Martin Liska  <mliska@suse.cz>
 254
 255         * doc/install.texi: Document that some tests need pytest module.
 256         * doc/sourcebuild.texi: Likewise.
 257
 258 2021-01-15  Christophe Lyon  <christophe.lyon@linaro.org>
 259
 260         PR target/71233
 261         * config/arm/arm_neon.h (vceqz_p64, vceqq_p64, vceqzq_p64): New.
 262
 263 2021-01-15  Christophe Lyon  <christophe.lyon@linaro.org>
 264
 265         * config/arm/mve.md (mve_vshrq_n_s<mode>_imm): New entry.
 266         (mve_vshrq_n_u<mode>_imm): Likewise.
 267         * config/arm/neon.md (vashr<mode>3, vlshr<mode>3): Move to ...
 268         * config/arm/vec-common.md: ... here.
 269
 270 2021-01-15  Christophe Lyon  <christophe.lyon@linaro.org>
 271
 272         * config/arm/mve.md (mve_vshlq_<supf><mode>): Move to
 273         vec-commond.md.
 274         * config/arm/neon.md (vashl<mode>3): Delete.
 275         * config/arm/vec-common.md (mve_vshlq_<supf><mode>): New.
 276         (vasl<mode>3): New expander.
 277
 278 2021-01-15  Richard Biener  <rguenther@suse.de>
 279
 280         PR tree-optimization/98685
 281         * tree-vect-slp.c (vect_schedule_slp_node): Refactor handling
 282         of vector extern defs.
 283
 284 2021-01-14  David Malcolm  <dmalcolm@redhat.com>
 285
 286         PR jit/98586
 287         * diagnostic.c (diagnostic_kind_text): Break out this array
 288         from...
 289         (diagnostic_build_prefix): ...here.
 290         (fancy_abort): Detect when diagnostic_initialize has not yet been
 291         called and fall back to a minimal implementation of printing the
 292         ICE, rather than segfaulting in internal_error.
 293
 294 2021-01-14  David Malcolm  <dmalcolm@redhat.com>
 295
 296         * diagnostic.c (diagnostic_initialize): Eliminate
 297         parseable_fixits_p in favor of initializing extra_output_kind from
 298         GCC_EXTRA_DIAGNOSTIC_OUTPUT.
 299         (convert_column_unit): New function, split out from...
 300         (diagnostic_converted_column): ...this.
 301         (print_parseable_fixits): Add "column_unit" and "tabstop" params.
 302         Use them to call convert_column_unit on the column values.
 303         (diagnostic_report_diagnostic): Eliminate conditional on
 304         parseable_fixits_p in favor of a switch statement on
 305         extra_output_kind, passing the appropriate values to the new
 306         params of print_parseable_fixits.
 307         (selftest::test_print_parseable_fixits_none): Update for new
 308         params of print_parseable_fixits.
 309         (selftest::test_print_parseable_fixits_insert): Likewise.
 310         (selftest::test_print_parseable_fixits_remove): Likewise.
 311         (selftest::test_print_parseable_fixits_replace): Likewise.
 312         (selftest::test_print_parseable_fixits_bytes_vs_display_columns):
 313         New.
 314         (selftest::diagnostic_c_tests): Call it.
 315         * diagnostic.h (enum diagnostics_extra_output_kind): New.
 316         (diagnostic_context::parseable_fixits_p): Delete field in favor
 317         of...
 318         (diagnostic_context::extra_output_kind): ...this new field.
 319         * doc/invoke.texi (Environment Variables): Add
 320         GCC_EXTRA_DIAGNOSTIC_OUTPUT.
 321         * opts.c (common_handle_option): Update handling of
 322         OPT_fdiagnostics_parseable_fixits for change to diagnostic_context
 323         fields.
 324
 325 2021-01-14  Tamar Christina  <tamar.christina@arm.com>
 326
 327         * tree-vect-slp-patterns.c (class complex_operations_pattern,
 328         complex_operations_pattern::matches,
 329         complex_operations_pattern::recognize,
 330         complex_operations_pattern::build): New.
 331         (slp_patterns): Use it.
 332
 333 2021-01-14  Tamar Christina  <tamar.christina@arm.com>
 334
 335         * internal-fn.def (COMPLEX_FMS, COMPLEX_FMS_CONJ): New.
 336         * optabs.def (cmls_optab, cmls_conj_optab): New.
 337         * doc/md.texi: Document them.
 338         * tree-vect-slp-patterns.c (class complex_fms_pattern,
 339         complex_fms_pattern::matches, complex_fms_pattern::recognize,
 340         complex_fms_pattern::build): New.
 341
 342 2021-01-14  Tamar Christina  <tamar.christina@arm.com>
 343
 344         * internal-fn.def (COMPLEX_FMA, COMPLEX_FMA_CONJ): New.
 345         * optabs.def (cmla_optab, cmla_conj_optab): New.
 346         * doc/md.texi: Document them.
 347         * tree-vect-slp-patterns.c (vect_match_call_p,
 348         class complex_fma_pattern, vect_slp_reset_pattern,
 349         complex_fma_pattern::matches, complex_fma_pattern::recognize,
 350         complex_fma_pattern::build): New.
 351
 352 2021-01-14  Tamar Christina  <tamar.christina@arm.com>
 353
 354         * internal-fn.def (COMPLEX_MUL, COMPLEX_MUL_CONJ): New.
 355         * optabs.def (cmul_optab, cmul_conj_optab): New.
 356         * doc/md.texi: Document them.
 357         * tree-vect-slp-patterns.c (vect_match_call_complex_mla,
 358         vect_normalize_conj_loc, is_eq_or_top, vect_validate_multiplication,
 359         vect_build_combine_node, class complex_mul_pattern,
 360         complex_mul_pattern::matches, complex_mul_pattern::recognize,
 361         complex_mul_pattern::build): New.
 362
 363 2021-01-14  Tamar Christina  <tamar.christina@arm.com>
 364
 365         * tree-vect-slp.c (optimize_load_redistribution_1): New.
 366         (optimize_load_redistribution, vect_is_slp_load_node): New.
 367         (vect_match_slp_patterns): Use it.
 368
 369 2021-01-14  Tamar Christina  <tamar.christina@arm.com>
 370
 371         * tree-vect-slp-patterns.c (complex_add_pattern::build):
 372         Elide nodes.
 373
 374 2021-01-14  Thomas Schwinge  <thomas@codesourcery.com>
 375
 376         * config/gcn/mkoffload.c (main): Create an offload image only in
 377         64-bit configurations.
 378
 379 2021-01-14  H.J. Lu  <hjl.tools@gmail.com>
 380
 381         PR target/98667
 382         * config/i386/i386-options.c (ix86_option_override_internal):
 383         Issue an error for -fcf-protection with CF_BRANCH when compiling
 384         for 32-bit non-TARGET_CMOV targets.
 385
 386 2021-01-14  Uroš Bizjak  <ubizjak@gmail.com>
 387
 388         PR target/98671
 389         * config/i386/i386-options.c (ix86_valid_target_attribute_inner_p):
 390         Remove declaration and initialization of shadow variable "ret".
 391         (ix86_option_override_internal): Remove delcaration of
 392         shadow variable "i".  Redeclare shadowed variable to unsigned.
 393         * common/config/i386/i386-common.c (pta_size): Redeclare to unsigned.
 394         * config/i386/i386-builtins.c (get_builtin_code_for_version):
 395         Update for redeclaration.
 396         * config/i386/i386.h (pta_size): Ditto.
 397
 398 2021-01-14  Richard Biener  <rguenther@suse.de>
 399
 400         PR tree-optimization/98674
 401         * tree-data-ref.c (base_supports_access_fn_components_p): New.
 402         (initialize_data_dependence_relation): For two bases without
 403         possible access fns resort to type size equality when determining
 404         shape compatibility.
 405
 406 2021-01-14  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
 407
 408         PR target/66791
 409         * config/arm/arm_neon.h: Replace calls to __builtin_vcge* by
 410         <=, >= operators in vcle and vcge intrinsics respectively.
 411         * config/arm/arm_neon_builtins.def: Remove entry for
 412         vcge and vcgeu.
 413
 414 2021-01-14  Uroš Bizjak  <ubizjak@gmail.com>
 415
 416         PR target/98671
 417         * config/i386/i386-options.c (ix86_function_specific_save):
 418         Remove redundant assignment to opts->x_ix86_branch_cost.
 419         * config/i386/i386.c (ix86_prefetch_sse):
 420         Rename from x86_prefetch_sse.  Update all uses.
 421         * config/i386/i386.h: Update for rename.
 422         * config/i386/i386-options.h: Ditto.
 423
 424 2021-01-14  Jakub Jelinek  <jakub@redhat.com>
 425
 426         PR target/98670
 427         * config/i386/sse.md (*sse4_1_zero_extendv8qiv8hi2_3,
 428         *sse4_1_zero_extendv4hiv4si2_3, *sse4_1_zero_extendv2siv2di2_3):
 429         Use Bm instead of m for non-avx.  Add isa attribute.
 430
 431 2021-01-14  Jakub Jelinek  <jakub@redhat.com>
 432
 433         PR tree-optimization/96688
 434         * match.pd (~(X >> Y) -> ~X >> Y): New simplification if
 435         ~X can be simplified.
 436
 437 2021-01-14  Richard Sandiford  <richard.sandiford@arm.com>
 438
 439         * tree-vect-stmts.c (vect_model_load_cost): Account for unused
 440         IFN_LOAD_LANES results.
 441
 442 2021-01-14  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 443
 444         * config/aarch64/aarch64-simd.md (aarch64_<su>xtl<mode>):
 445         Define.
 446         (aarch64_xtn<mode>): Likewise.
 447         * config/aarch64/aarch64-simd-builtins.def (sxtl, uxtl, xtn):
 448         Define
 449         builtins.
 450         * config/aarch64/arm_neon.h (vmovl_s8): Reimplement using
 451         builtin.
 452         (vmovl_s16): Likewise.
 453         (vmovl_s32): Likewise.
 454         (vmovl_u8): Likewise.
 455         (vmovl_u16): Likewise.
 456         (vmovl_u32): Likewise.
 457         (vmovn_s16): Likewise.
 458         (vmovn_s32): Likewise.
 459         (vmovn_s64): Likewise.
 460         (vmovn_u16): Likewise.
 461         (vmovn_u32): Likewise.
 462         (vmovn_u64): Likewise.
 463
 464 2021-01-14  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 465
 466         * config/aarch64/aarch64-simd.md (aarch64_<su>qxtn2<mode>_le):
 467         Define.
 468         (aarch64_<su>qxtn2<mode>_be): Likewise.
 469         (aarch64_<su>qxtn2<mode>): Likewise.
 470         * config/aarch64/aarch64-simd-builtins.def (sqxtn2, uqxtn2):
 471         Define builtins.
 472         * config/aarch64/iterators.md (SAT_TRUNC): Define code_iterator.
 473         (su): Handle ss_truncate and us_truncate.
 474         * config/aarch64/arm_neon.h (vqmovn_high_s16): Reimplement using
 475         builtin.
 476         (vqmovn_high_s32): Likewise.
 477         (vqmovn_high_s64): Likewise.
 478         (vqmovn_high_u16): Likewise.
 479         (vqmovn_high_u32): Likewise.
 480         (vqmovn_high_u64): Likewise.
 481
 482 2021-01-14  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 483
 484         * config/aarch64/aarch64-simd.md (aarch64_xtn2<mode>_le):
 485         Define.
 486         (aarch64_xtn2<mode>_be): Likewise.
 487         (aarch64_xtn2<mode>): Likewise.
 488         * config/aarch64/aarch64-simd-builtins.def (xtn2): Define
 489         builtins.
 490         * config/aarch64/arm_neon.h (vmovn_high_s16): Reimplement using
 491         builtins.
 492         (vmovn_high_s32): Likewise.
 493         (vmovn_high_s64): Likewise.
 494         (vmovn_high_u16): Likewise.
 495         (vmovn_high_u32): Likewise.
 496         (vmovn_high_u64): Likewise.
 497
 498 2021-01-13  Stafford Horne  <shorne@gmail.com>
 499
 500         * config/or1k/or1k.h (ASM_PREFERRED_EH_DATA_FORMAT): New macro.
 501
 502 2021-01-13  Stafford Horne  <shorne@gmail.com>
 503
 504         * config/or1k/linux.h (TARGET_ASM_FILE_END): Define macro.
 505
 506 2021-01-13  Stafford Horne  <shorne@gmail.com>
 507
 508         * config/or1k/or1k.h (TARGET_CPU_CPP_BUILTINS): Add builtin
 509           define for __or1k_hard_float__.
 510
 511 2021-01-13  Stafford Horne  <shorne@gmail.com>
 512
 513         * config/or1k/or1k.h (NO_PROFILE_COUNTERS): Define as 1.
 514         (PROFILE_HOOK): Define to call _mcount.
 515         (FUNCTION_PROFILER): Change from abort to no-op.
 516
 517 2021-01-13  Jakub Jelinek  <jakub@redhat.com>
 518
 519         PR tree-optimization/96691
 520         * match.pd ((~X | C) ^ D -> (X | C) ^ (~D ^ C),
 521         (~X & C) ^ D -> (X & C) ^ (D ^ C)): New simplifications if
 522         (~D ^ C) or (D ^ C) can be simplified.
 523
 524 2021-01-13  Richard Biener  <rguenther@suse.de>
 525
 526         PR tree-optimization/92645
 527         * match.pd (BIT_FIELD_REF to conversion): Delay canonicalization
 528         until after vector lowering.
 529
 530 2021-01-13  Richard Sandiford  <richard.sandiford@arm.com>
 531
 532         * config/aarch64/aarch64-sve.md (fnma<mode>4): Extend from SVE_FULL_I
 533         to SVE_I.
 534         (@aarch64_pred_fnma<mode>, cond_fnma<mode>, *cond_fnma<mode>_2)
 535         (*cond_fnma<mode>_4, *cond_fnma<mode>_any): Likewise.
 536
 537 2021-01-13  Richard Sandiford  <richard.sandiford@arm.com>
 538
 539         * config/aarch64/aarch64-sve.md (fma<mode>4): Extend from SVE_FULL_I
 540         to SVE_I.
 541         (@aarch64_pred_fma<mode>, cond_fma<mode>, *cond_fma<mode>_2)
 542         (*cond_fma<mode>_4, *cond_fma<mode>_any): Likewise.
 543
 544 2021-01-13  Richard Biener  <rguenther@suse.de>
 545
 546         PR tree-optimization/92645
 547         * tree-vect-slp.c (vect_build_slp_tree_1): Relax supported
 548         BIT_FIELD_REF argument.
 549         (vect_build_slp_tree_2): Record the desired vector type
 550         on the external vector def.
 551         (vectorizable_slp_permutation): Handle required punning
 552         of existing vector defs.
 553
 554 2021-01-13  Richard Sandiford  <richard.sandiford@arm.com>
 555
 556         * rtl-ssa/accesses.h (def_lookup): Fix order of comparison results.
 557
 558 2021-01-13  Richard Sandiford  <richard.sandiford@arm.com>
 559
 560         * config/sh/sh.md (movsf_ie): Remove operands[2] test.
 561
 562 2021-01-13  Samuel Thibault  <samuel.thibault@ens-lyon.org>
 563
 564         * config.gcc [$target == *-*-gnu*]: Enable
 565         'default_gnu_indirect_function'.
 566
 567 2021-01-13  Jakub Jelinek  <jakub@redhat.com>
 568
 569         PR target/95905
 570         * optabs.c (expand_vec_perm_const): Don't force v0 and v1 into
 571         registers before calling targetm.vectorize.vec_perm_const, only after
 572         that.
 573         * config/i386/i386-expand.c (ix86_vectorize_vec_perm_const): Handle
 574         two argument permutation when one operand is zero vector and only
 575         after that force operands into registers.
 576         * config/i386/sse.md (*avx2_zero_extendv16qiv16hi2_1): New
 577         define_insn_and_split pattern.
 578         (*avx512bw_zero_extendv32qiv32hi2_1): Likewise.
 579         (*avx512f_zero_extendv16hiv16si2_1): Likewise.
 580         (*avx2_zero_extendv8hiv8si2_1): Likewise.
 581         (*avx512f_zero_extendv8siv8di2_1): Likewise.
 582         (*avx2_zero_extendv4siv4di2_1): Likewise.
 583         * config/mips/mips.c (mips_vectorize_vec_perm_const): Force operands
 584         into registers.
 585         * config/arm/arm.c (arm_vectorize_vec_perm_const): Likewise.
 586         * config/sparc/sparc.c (sparc_vectorize_vec_perm_const): Likewise.
 587         * config/ia64/ia64.c (ia64_vectorize_vec_perm_const): Likewise.
 588         * config/aarch64/aarch64.c (aarch64_vectorize_vec_perm_const): Likewise.
 589         * config/rs6000/rs6000.c (rs6000_vectorize_vec_perm_const): Likewise.
 590         * config/gcn/gcn.c (gcn_vectorize_vec_perm_const): Likewise.  Use std::swap.
 591
 592 2021-01-13  Martin Liska  <mliska@suse.cz>
 593
 594         PR tree-optimization/98455
 595         * gimple-if-to-switch.cc (condition_info::record_phi_mapping):
 596         Record also virtual PHIs.
 597         (pass_if_to_switch::execute): Return TODO_cleanup_cfg only
 598         conditionally.
 599
 600 2021-01-13  Jonathan Wakely  <jwakely@redhat.com>
 601
 602         * doc/invoke.texi (C++ Modules): Fix typos.
 603
 604 2021-01-13  Richard Biener  <rguenther@suse.de>
 605
 606         PR tree-optimization/98640
 607         * tree-ssa-sccvn.c (visit_nary_op): Do not try to
 608         handle plus or minus from a truncated operand to be
 609         sign-extended.
 610
 611 2021-01-13  Jakub Jelinek  <jakub@redhat.com>
 612
 613         PR target/96938
 614         * config/i386/i386.md (*btr<mode>_1, *btr<mode>_2): New
 615         define_insn_and_split patterns.
 616         (splitter after *btr<mode>_2): New splitter.
 617
 618 2021-01-13  Martin Liska  <mliska@suse.cz>
 619
 620         PR ipa/98652
 621         * cgraphunit.c (analyze_functions): Remove dead code.
 622
 623 2021-01-13  Qian Jianhua  <qianjh@cn.fujitsu.com>
 624
 625         * config/aarch64/aarch64-cost-tables.h (a64fx_extra_costs): New.
 626         * config/aarch64/aarch64.c (a64fx_addrcost_table): New.
 627         (a64fx_regmove_cost, a64fx_vector_cost): New.
 628         (a64fx_tunings): Use the new added cost tables.
 629
 630 2021-01-13  Jakub Jelinek  <jakub@redhat.com>
 631
 632         PR target/95905
 633         * config/i386/predicates.md (pmovzx_parallel): New predicate.
 634         * config/i386/sse.md (*sse4_1_zero_extendv8qiv8hi2_3): New
 635         define_insn_and_split pattern.
 636         (*sse4_1_zero_extendv4hiv4si2_3): Likewise.
 637         (*sse4_1_zero_extendv2siv2di2_3): Likewise.
 638
 639 2021-01-13  Julian Brown  <julian@codesourcery.com>
 640
 641         * config/gcn/gcn.c (gcn_conditional_register_usage): Remove dead code
 642         to fix v0 register.
 643
 644 2021-01-13  Julian Brown  <julian@codesourcery.com>
 645
 646         * config/gcn/gcn.c (gcn_md_reorg): Fix case where EXEC reg is live
 647         on entry to a BB.
 648
 649 2021-01-13  Julian Brown  <julian@codesourcery.com>
 650
 651         * config/gcn/gcn-valu.md (recip<mode>2<exec>, recip<mode>2): Use unspec
 652         for reciprocal-approximation instructions.
 653         (div<mode>3): Use fused multiply-accumulate operations for reciprocal
 654         refinement and division result.
 655         * config/gcn/gcn.md (UNSPEC_RCP): New unspec constant.
 656
 657 2021-01-13  Julian Brown  <julian@codesourcery.com>
 658
 659         * config/gcn/gcn-valu.md (subdf): Rename to...
 660         (subdf3): This.
 661
 662 2021-01-12  Martin Liska  <mliska@suse.cz>
 663
 664         * gcov.c (source_info::debug): Fix printf format for 32-bit hosts.
 665
 666 2021-01-12  Andrea Corallo  <andrea.corallo@arm.com>
 667
 668         * function-abi.h: Fix typo.
 669
 670 2021-01-12  Christophe Lyon  <christophe.lyon@linaro.org>
 671
 672         PR target/97875
 673         PR target/97875
 674         * config/arm/arm.h (ARM_HAVE_NEON_V8QI_LDST): New macro.
 675         (ARM_HAVE_NEON_V16QI_LDST, ARM_HAVE_NEON_V4HI_LDST): Likewise.
 676         (ARM_HAVE_NEON_V8HI_LDST, ARM_HAVE_NEON_V2SI_LDST): Likewise.
 677         (ARM_HAVE_NEON_V4SI_LDST, ARM_HAVE_NEON_V4HF_LDST): Likewise.
 678         (ARM_HAVE_NEON_V8HF_LDST, ARM_HAVE_NEON_V4BF_LDST): Likewise.
 679         (ARM_HAVE_NEON_V8BF_LDST, ARM_HAVE_NEON_V2SF_LDST): Likewise.
 680         (ARM_HAVE_NEON_V4SF_LDST, ARM_HAVE_NEON_DI_LDST): Likewise.
 681         (ARM_HAVE_NEON_V2DI_LDST): Likewise.
 682         (ARM_HAVE_V8QI_LDST, ARM_HAVE_V16QI_LDST): Likewise.
 683         (ARM_HAVE_V4HI_LDST, ARM_HAVE_V8HI_LDST): Likewise.
 684         (ARM_HAVE_V2SI_LDST, ARM_HAVE_V4SI_LDST, ARM_HAVE_V4HF_LDST): Likewise.
 685         (ARM_HAVE_V8HF_LDST, ARM_HAVE_V4BF_LDST, ARM_HAVE_V8BF_LDST): Likewise.
 686         (ARM_HAVE_V2SF_LDST, ARM_HAVE_V4SF_LDST, ARM_HAVE_DI_LDST): Likewise.
 687         (ARM_HAVE_V2DI_LDST): Likewise.
 688         * config/arm/mve.md (*movmisalign<mode>_mve_store): New pattern.
 689         (*movmisalign<mode>_mve_load): New pattern.
 690         * config/arm/neon.md (movmisalign<mode>): Move to ...
 691         * config/arm/vec-common.md: ... here.
 692
 693 2021-01-12  Vladimir N. Makarov  <vmakarov@redhat.com>
 694
 695         PR target/97969
 696         * lra-eliminations.c (eliminate_regs_in_insn): Add transformation
 697         of pattern 'plus (plus (hard reg, const), pseudo)'.
 698
 699 2021-01-12  Richard Biener  <rguenther@suse.de>
 700
 701         PR tree-optimization/98550
 702         * tree-vect-slp.c (vect_record_max_nunits): Check whether
 703         the group size is a multiple of the vector element count.
 704         (vect_build_slp_tree_1): When we need to fail because
 705         the vector type choosen causes unrolling do so lazily
 706         without affecting matches only at the end to guide group splitting.
 707
 708 2021-01-12  Martin Liska  <mliska@suse.cz>
 709
 710         PR c++/97284
 711         * optc-save-gen.awk: Compare also n_target_save vars with
 712         strcmp.
 713
 714 2021-01-12  Martin Liska  <mliska@suse.cz>
 715
 716         * gcov.c (source_info::debug): New.
 717         (print_usage): Add --debug (-D) option.
 718         (process_args): Likewise.
 719         (generate_results): Call src->debug after
 720         accumulate_line_counts.
 721         (read_graph_file): Properly assign id for EXIT_BLOCK.
 722         * profile.c (branch_prob): Dump function body before it is
 723         instrumented.
 724
 725 2021-01-12  Jakub Jelinek  <jakub@redhat.com>
 726
 727         PR tree-optimization/98629
 728         * tree-ssa-math-opts.c (arith_overflow_check_p): Don't update use_stmt
 729         unless returning non-zero.
 730
 731 2021-01-12  Jakub Jelinek  <jakub@redhat.com>
 732
 733         PR tree-optimization/95731
 734         * tree-ssa-reassoc.c (optimize_range_tests_cmp_bitwise): Also optimize
 735         x < 0 && y < 0 && z < 0 into (x | y | z) < 0 for signed x, y, z.
 736         (optimize_range_tests): Call optimize_range_tests_cmp_bitwise
 737         only after optimize_range_tests_var_bound.
 738
 739 2021-01-12  Jakub Jelinek  <jakub@redhat.com>
 740
 741         * configure.ac: Ensure c/Make-lang.in comes first in @all_lang_makefrags@.
 742         * configure: Regenerated.
 743
 744 2021-01-12  liuhongt  <hongtao.liu@intel.com>
 745
 746         PR target/98612
 747         * config/i386/i386-builtins.h (BUILTIN_DESC_SWAP_OPERANDS):
 748         Deleted.
 749         * config/i386/i386-expand.c (ix86_expand_sse_comi): Delete
 750         dead code.
 751
 752 2021-01-12  Alexandre Oliva  <oliva@adacore.com>
 753
 754         * ssa-iterators.h (end_imm_use_stmt_traverse): Forward
 755         declare.
 756         (auto_end_imm_use_stmt_traverse): New struct.
 757         (FOR_EACH_IMM_USE_STMT): Use it.
 758         (BREAK_FROM_IMM_USE_STMT, RETURN_FROM_IMM_USE_STMT): Remove,
 759         along with uses...
 760         * gimple-ssa-strength-reduction.c: ... here, ...
 761         * graphite-scop-detection.c: ... here, ...
 762         * ipa-modref.c, ipa-pure-const.c, ipa-sra.c: ... here, ...
 763         * tree-predcom.c, tree-ssa-ccp.c: ... here, ...
 764         * tree-ssa-dce.c, tree-ssa-dse.c: ... here, ...
 765         * tree-ssa-loop-ivopts.c, tree-ssa-math-opts.c: ... here, ...
 766         * tree-ssa-phiprop.c, tree-ssa.c: ... here, ...
 767         * tree-vect-slp.c: ... and here, ...
 768         * doc/tree-ssa.texi: ... and the example here.
 769
 770 2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>
 771
 772         * config/aarch64/aarch64-sve.md (sdiv_pow2<mode>3): Extend from
 773         SVE_FULL_I to SVE_I.  Generate an UNSPEC_PRED_X.
 774         (*sdiv_pow2<mode>3): New pattern.
 775         (@cond_<sve_int_op><mode>): Extend from SVE_FULL_I to SVE_I.
 776         Wrap the ASRD in an UNSPEC_PRED_X.
 777         (*cond_<sve_int_op><mode>_2): Likewise.  Replace the UNSPEC_PRED_X
 778         predicate with a constant PTRUE, if it isn't already.
 779         (*cond_<sve_int_op><mode>_z): Replace with...
 780         (*cond_<sve_int_op><mode>_any): ...this new pattern.
 781
 782 2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>
 783
 784         * config/aarch64/aarch64-sve.md (*cond_bic<mode>_2): Extend from
 785         SVE_FULL_I to SVE_I.
 786         (*cond_bic<mode>_any): Likewise.
 787
 788 2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>
 789
 790         * config/aarch64/aarch64-sve.md (<su>mul<mode>3_highpart)
 791         (@aarch64_pred_<MUL_HIGHPART:optab><mode>): Extend from SVE_FULL_I
 792         to SVE_I.
 793
 794 2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>
 795
 796         * config/aarch64/aarch64-sve.md (<su>abd<mode>_3): Extend from
 797         SVE_FULL_I to SVE_I.
 798         (*aarch64_cond_<su>abd<mode>_2): Likewise.
 799         (*aarch64_cond_<su>abd<mode>_any): Likewise.
 800         (@aarch64_pred_<su>abd<mode>): Likewise.  Use UNSPEC_PRED_X
 801         for the max and min but not for the minus.
 802         (*aarch64_cond_<su>abd<mode>_3): New pattern.
 803
 804 2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>
 805
 806         * config/aarch64/iterators.md (SVE_24I): New iterator.
 807         * config/aarch64/aarch64-sve.md (*aarch64_adr<mode>_shift): Extend from
 808         SVE_FULL_SDI to SVE_24I.  Use containers rather than elements.
 809
 810 2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>
 811
 812         * config/aarch64/aarch64-sve.md (@cond_<SVE_INT_BINARY:optab><mode>)
 813         (*cond_<SVE_INT_BINARY:optab><mode>_2): Extend from SVE_FULL_I
 814         to SVE_I.
 815         (*cond_<SVE_INT_BINARY:optab><mode>_3): Likewise.
 816         (*cond_<SVE_INT_BINARY:optab><mode>_any): Likewise.
 817         (*cond_<SVE_INT_BINARY:optab><mode>_2_const): Likewise.
 818         (*cond_<SVE_INT_BINARY:optab><mode>_any_const): Likewise.
 819
 820 2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>
 821
 822         * config/aarch64/aarch64-sve.md (<SVE_INT_BINARY_IMM:optab><mode>3)
 823         (@aarch64_pred_<SVE_INT_BINARY_IMM:optab><mode>)
 824         (*post_ra_<SVE_INT_BINARY_IMM:optab><mode>3): Extend from SVE_FULL_I
 825         to SVE_I.
 826
 827 2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>
 828
 829         * config/aarch64/aarch64-sve.md (<ASHIFT:optab><mode>3)
 830         (v<ASHIFT:optab><mode>3, @aarch64_pred_<optab><mode>)
 831         (*post_ra_v<ASHIFT:optab><mode>3): Extend from SVE_FULL_I to SVE_I.
 832
 833 2021-01-11  Martin Liska  <mliska@suse.cz>
 834
 835         PR jit/98615
 836         * symtab-clones.h (clone_info::release): Release
 837         symtab::m_clones with ggc_delete as it's a GGC memory.
 838
 839 2021-01-11  Matthias Klose  <doko@ubuntu.com>
 840
 841         * Makefile.in (LINK_PROGRESS): Show the link target.
 842
 843 2021-01-11  Richard Biener  <rguenther@suse.de>
 844
 845         PR tree-optimization/91403
 846         * tree-vect-data-refs.c (vect_analyze_group_access_1): Cap
 847         single-element interleaving group size at 4096 elements.
 848
 849 2021-01-11  Richard Biener  <rguenther@suse.de>
 850
 851         PR tree-optimization/98526
 852         * tree-vect-loop.c (vect_model_reduction_cost): Remove costing
 853         of the actual reduction op for the regular case.
 854         (vectorizable_reduction): Cost the stmts
 855         vect_transform_reduction produces here.
 856
 857 2021-01-11  Andreas Krebbel  <krebbel@linux.ibm.com>
 858
 859         * tree-ssa-forwprop.c (simplify_vector_constructor): For
 860         big-endian, use UNPACK[_FLOAT]_HI.
 861
 862 2021-01-11  Tamar Christina  <tamar.christina@arm.com>
 863
 864         * tree-vect-slp-patterns.c (class complex_pattern,
 865         class complex_add_pattern): Add parameters to matches.
 866         (complex_add_pattern::build): Free memory.
 867         (complex_add_pattern::matches): Move validation end of match.
 868         (complex_add_pattern::recognize): Likewise.
 869
 870 2021-01-11  Tamar Christina  <tamar.christina@arm.com>
 871
 872         * tree-vect-slp-patterns.c (linear_loads_p): Fix externals.
 873
 874 2021-01-11  Tamar Christina  <tamar.christina@arm.com>
 875
 876         * tree-vect-slp-patterns.c (is_linear_load_p): Fix ambiguity.
 877
 878 2021-01-11  Jakub Jelinek  <jakub@redhat.com>
 879
 880         PR tree-optimization/95867
 881         * tree-ssa-math-opts.h: New header.
 882         * tree-ssa-math-opts.c: Include tree-ssa-math-opts.h.
 883         (powi_as_mults): No longer static.  Use build_one_cst instead of
 884         build_real.  Formatting fix.
 885         * tree-ssa-reassoc.c: Include tree-ssa-math-opts.h.
 886         (attempt_builtin_powi): Handle multiplication reassociation without
 887         powi_fndecl using powi_as_mults.
 888         (reassociate_bb): For integral types don't require
 889         -funsafe-math-optimizations to call attempt_builtin_powi.
 890
 891 2021-01-11  Jakub Jelinek  <jakub@redhat.com>
 892
 893         PR tree-optimization/95852
 894         * tree-ssa-math-opts.c (maybe_optimize_guarding_check): Change
 895         mul_stmts parameter type to vec<gimple *> &.  Before cond_stmt
 896         allow in the bb any of the stmts in that vector, div_stmt and
 897         up to 3 cast stmts.
 898         (arith_cast_equal_p): New function.
 899         (arith_overflow_check_p): Add cast_stmt argument, handle signed
 900         multiply overflow checks.
 901         (match_arith_overflow): Adjust caller.  Handle signed multiply
 902         overflow checks.
 903
 904 2021-01-11  Jakub Jelinek  <jakub@redhat.com>
 905
 906         PR tree-optimization/95852
 907         * tree-ssa-math-opts.c (maybe_optimize_guarding_check): New function.
 908         (uaddsub_overflow_check_p): Renamed to ...
 909         (arith_overflow_check_p): ... this.  Handle also multiplication
 910         with overflow check.
 911         (match_uaddsub_overflow): Renamed to ...
 912         (match_arith_overflow): ... this.  Add cfg_changed argument.  Handle
 913         also multiplication with overflow check.  Adjust function comment.
 914         (math_opts_dom_walker::after_dom_children): Adjust callers.  Call
 915         match_arith_overflow also for MULT_EXPR.
 916
 917 2021-01-11  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 918
 919         * config/aarch64/arm_neon.h (vmovl_s8): Reimplement using
 920         __builtin_convertvector.
 921         (vmovl_s16): Likewise.
 922         (vmovl_s32): Likewise.
 923         (vmovl_u8): Likewise.
 924         (vmovl_u16): Likewise.
 925         (vmovl_u32): Likewise.
 926         (vmovn_s16): Likewise.
 927         (vmovn_s32): Likewise.
 928         (vmovn_s64): Likewise.
 929         (vmovn_u16): Likewise.
 930         (vmovn_u32): Likewise.
 931         (vmovn_u64): Likewise.
 932
 933 2021-01-11  Martin Liska  <mliska@suse.cz>
 934
 935         * gimple-if-to-switch.cc (struct condition_info): Use auto_var.
 936         (if_chain::is_beneficial): Delete clusters
 937         (find_conditions): Make second argument of conditions_in_bbs a
 938         pointer so that we control over it's lifetime.
 939         (pass_if_to_switch::execute): Delete them.
 940
 941 2021-01-11  Kewen Lin  <linkw@linux.ibm.com>
 942
 943         * ira.c (move_unallocated_pseudos): Check other_reg and skip if
 944         it isn't set.
 945
 946 2021-01-09  Maciej W. Rozycki  <macro@linux-mips.org>
 947
 948         * config/vax/vax.md (cc): Remove mode attribute.
 949         (subst_<cc>, subst_f<cc>): Rename to...
 950         (subst_<mode>, subst_f<VAXccnz:mode>): ... these respectively.
 951         (*cbranch<VAXint:mode>4_<VAXcc:mode>): Update for `cc' removal.
 952         (*cbranch<VAXfp:mode>4_<VAXccnz:mode>): Likewise.
 953         (*branch_<mode>, *branch_<mode>_reversed): Likewise.
 954
 955 2021-01-09  Maciej W. Rozycki  <macro@linux-mips.org>
 956
 957         * config/vax/vax.md (subst_f<cc>): Add mode to operands and
 958         `const_double_zero'.
 959
 960 2021-01-09  Maciej W. Rozycki  <macro@linux-mips.org>
 961
 962         * config/pdp11/pdp11.md (PDPfp): New mode iterator.
 963         (fcc_cc, fcc_ccnz): Use it.  Add mode to `const_double_zero' and
 964         operands.
 965
 966 2021-01-09  Maciej W. Rozycki  <macro@linux-mips.org>
 967
 968         * genemit.c (gen_exp) <CONST_DOUBLE>: Handle `const_double_zero'
 969         rtx.
 970         * read-rtl.c (rtx_reader::read_rtx_code): Handle machine mode
 971         with `const_double_zero'.
 972         * doc/rtl.texi (Constant Expression Types): Document it.
 973
 974 2021-01-09  Jakub Jelinek  <jakub@redhat.com>
 975
 976         PR c++/98556
 977         * tree-cfg.c (verify_gimple_assign_binary): Allow lhs of
 978         POINTER_DIFF_EXPR to be any integral type.
 979
 980 2021-01-09  Jakub Jelinek  <jakub@redhat.com>
 981
 982         PR rtl-optimization/98603
 983         * function.c (instantiate_virtual_regs_in_insn): For asm goto
 984         with impossible constraints, drop all SETs, CLOBBERs, drop PARALLEL
 985         if any, set ASM_OPERANDS mode to VOIDmode and change
 986         ASM_OPERANDS_OUTPUT_CONSTRAINT and ASM_OPERANDS_OUTPUT_IDX.
 987
 988 2021-01-09  Alexandre Oliva  <oliva@gnu.org>
 989
 990         PR debug/97714
 991         * final.c (notice_source_line): Narrow down the condition to
 992         skip a line-0 marker.
 993
 994 2021-01-08  Sergei Trofimovich  <siarheit@google.com>
 995
 996         * ipa-modref.c (merge_call_side_effects): Fix
 997         linebreak split by reordering two print calls.
 998
 999 2021-01-08  Ilya Leoshkevich  <iii@linux.ibm.com>
1000
1001         * config/s390/vector.md (*tf_to_fprx2_0): Rename from
1002         "*mov_tf_to_fprx2_0" for consistency, fix constraint.
1003         (*tf_to_fprx2_1): Rename from "*mov_tf_to_fprx2_1" for
1004         consistency, fix constraint.
1005
1006 2021-01-08  Ilya Leoshkevich  <iii@linux.ibm.com>
1007
1008         * config/s390/s390-c.c (s390_def_or_undef_macro): Accept
1009         callables instead of mask values.
1010         (struct target_flag_set_p): New predicate.
1011         (s390_cpu_cpp_builtins_internal): Define or undefine
1012         __LONG_DOUBLE_VX__ macro.
1013
1014 2021-01-08  H.J. Lu  <hjl.tools@gmail.com>
1015
1016         PR target/98482
1017         * config/i386/i386.c (x86_function_profiler): Use R10 and R11
1018         to call mcount in large model with PIC for NO_PROFILE_COUNTERS
1019         targets.
1020
1021 2021-01-08  Richard Biener  <rguenther@suse.de>
1022
1023         * tree-ssa-sccvn.c (pass_fre::execute): Reset the SCEV hash table.
1024
1025 2021-01-08  Richard Biener  <rguenther@suse.de>
1026
1027         * tree-vect-slp.c (scalar_stmts_to_slp_tree_map_t): Fix.
1028         (vect_build_slp_tree): On cache hit release the matched
1029         scalar stmts vector.
1030         * tree-vect-stmts.c (vectorizable_store): Properly free
1031         vec_oprnds before possibly gathering them again.
1032
1033 2021-01-08  Richard Biener  <rguenther@suse.de>
1034
1035         PR tree-optimization/98544
1036         * tree-vect-slp.c (vect_optimize_slp): Always materialize
1037         permutes at a permute node.
1038
1039 2021-01-08  H.J. Lu  <hjl.tools@gmail.com>
1040
1041         PR target/98482
1042         * config/i386/i386.c (x86_function_profiler): Use R10 to call
1043         mcount in large model.  Sorry for large model with PIC.
1044
1045 2021-01-08  Jakub Jelinek  <jakub@redhat.com>
1046
1047         PR target/98585
1048         * config/i386/i386.opt (ix86_cmodel, ix86_incoming_stack_boundary_arg,
1049         ix86_pmode, ix86_preferred_stack_boundary_arg, ix86_regparm,
1050         ix86_veclibabi_type): Remove x_ prefix, use TargetVariable instead of
1051         TargetSave and initialize for variables with enum types.
1052         (mfentry, mstack-protector-guard-reg=, mstack-protector-guard-offset=,
1053         mstack-protector-guard-symbol=): Add Save.
1054         * config/i386/i386-options.c (ix86_function_specific_save,
1055         ix86_function_specific_restore): Don't save or restore x_ix86_cmodel,
1056         x_ix86_incoming_stack_boundary_arg, x_ix86_pmode,
1057         x_ix86_preferred_stack_boundary_arg, x_ix86_regparm,
1058         x_ix86_veclibabi_type.
1059
1060 2021-01-08  Richard Sandiford  <richard.sandiford@arm.com>
1061
1062         * config/aarch64/aarch64-sve.md (*cnot<mode>): Extend from
1063         SVE_FULL_I to SVE_I.
1064         (*cond_cnot<mode>_2, *cond_cnot<mode>_any): Likewise.
1065
1066 2021-01-08  Richard Sandiford  <richard.sandiford@arm.com>
1067
1068         * config/aarch64/aarch64-sve.md (*cond_uxt<mode>_2): Extend from
1069         SVE_FULL_I to SVE_I.
1070         (*cond_uxt<mode>_any): Likewise.
1071
1072 2021-01-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
1073
1074         * config/aarch64/iterators.md (Vwhalf): New iterator.
1075         * config/aarch64/aarch64-simd.md (aarch64_<sur>adalp<mode>_3):
1076         Rename to...
1077         (aarch64_<sur>adalp<mode>): ... This.  Make more
1078         builtin-friendly.
1079         (<sur>sadv16qi): Adjust callsite of the above.
1080         * config/aarch64/aarch64-simd-builtins.def (sadalp, uadalp): New
1081         builtins.
1082         * config/aarch64/arm_neon.h (vpadal_s8): Reimplement using
1083         builtins.
1084         (vpadal_s16): Likewise.
1085         (vpadal_u8): Likewise.
1086         (vpadal_u16): Likewise.
1087         (vpadalq_s8): Likewise.
1088         (vpadalq_s16): Likewise.
1089         (vpadalq_s32): Likewise.
1090         (vpadalq_u8): Likewise.
1091         (vpadalq_u16): Likewise.
1092         (vpadalq_u32): Likewise.
1093
1094 2021-01-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
1095
1096         * config/aarch64/aarch64-simd.md (aarch64_<su>abd<mode>_3):
1097         Rename to...
1098         (aarch64_<su>abd<mode>): ... This.
1099         (<sur>sadv16qi): Adjust callsite of the above.
1100         * config/aarch64/aarch64-simd-builtins.def (sabd, uabd): Define
1101         builtins.
1102         * config/aarch64/arm_neon.h (vabd_s8): Reimplement using
1103         builtin.
1104         (vabd_s16): Likewise.
1105         (vabd_s32): Likewise.
1106         (vabd_u8): Likewise.
1107         (vabd_u16): Likewise.
1108         (vabd_u32): Likewise.
1109         (vabdq_s8): Likewise.
1110         (vabdq_s16): Likewise.
1111         (vabdq_s32): Likewise.
1112         (vabdq_u8): Likewise.
1113         (vabdq_u16): Likewise.
1114         (vabdq_u32): Likewise.
1115
1116 2021-01-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
1117
1118         * config/aarch64/aarch64-simd-builtins.def (saba, uaba): Define
1119         builtins.
1120         * config/aarch64/arm_neon.h (vaba_s8): Implement using builtin.
1121         (vaba_s16): Likewise.
1122         (vaba_s32): Likewise.
1123         (vaba_u8): Likewise.
1124         (vaba_u16): Likewise.
1125         (vaba_u32): Likewise.
1126         (vabaq_s8): Likewise.
1127         (vabaq_s16): Likewise.
1128         (vabaq_s32): Likewise.
1129         (vabaq_u8): Likewise.
1130         (vabaq_u16): Likewise.
1131         (vabaq_u32): Likewise.
1132
1133 2021-01-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
1134
1135         * config/aarch64/aarch64-simd.md (aba<mode>_3): Rename to...
1136         (aarch64_<su>aba<mode>): ... This.  Handle uaba as well.
1137         Change RTL pattern to match.
1138
1139 2021-01-08  Kito Cheng  <kito.cheng@sifive.com>
1140
1141         * common/config/riscv/riscv-common.c (riscv_current_subset_list): New.
1142         * config/riscv/riscv-c.c (riscv-subset.h): New.
1143         (INCLUDE_STRING): Define.
1144         (riscv_cpu_cpp_builtins): Add new style architecture extension
1145         test macros.
1146         * config/riscv/riscv-subset.h (riscv_subset_list::begin): New.
1147         (riscv_subset_list::end): New.
1148         (riscv_current_subset_list): New.
1149
1150 2021-01-08  Kito Cheng  <kito.cheng@sifive.com>
1151
1152         * common/config/riscv/riscv-common.c (RISCV_DONT_CARE_VERSION):
1153         Move to riscv-subset.h.
1154         (struct riscv_subset_t): Ditto.
1155         (class riscv_subset_list): Ditto.
1156         * config/riscv/riscv-subset.h (RISCV_DONT_CARE_VERSION): Move
1157         from riscv-common.c.
1158         (struct riscv_subset_t): Ditto.
1159         (class riscv_subset_list): Ditto.
1160         * config/riscv/t-riscv ($(common_out_file)): Add file
1161         dependency.
1162
1163 2021-01-07  Jakub Jelinek  <jakub@redhat.com>
1164
1165         PR target/98567
1166         * config/i386/i386.md (*bmi_blsi_<mode>_cmp, *bmi_blsi_<mode>_ccno):
1167         New define_insn patterns.
1168
1169 2021-01-07  Richard Sandiford  <richard.sandiford@arm.com>
1170
1171         * config/aarch64/aarch64-sve.md (@cond_<SVE_INT_UNARY:optab><mode>)
1172         (*cond_<SVE_INT_UNARY:optab><mode>_2): Extend from SVE_FULL_I to SVE_I.
1173         (*cond_<SVE_INT_UNARY:optab><mode>_any): Likewise.
1174
1175 2021-01-07  Richard Sandiford  <richard.sandiford@arm.com>
1176
1177         PR tree-optimization/98560
1178         * internal-fn.def (IFN_VCONDU, IFN_VCONDEQ): Use type vec_cond.
1179         * internal-fn.c (vec_cond_mask_direct): Get the data mode from
1180         argument 1.
1181         (vec_cond_direct): Likewise argument 2.
1182         (vec_condu_direct, vec_condeq_direct): Delete.
1183         (expand_vect_cond_optab_fn): Rename to...
1184         (expand_vec_cond_optab_fn): ...this, replacing old macro.
1185         (expand_vec_condu_optab_fn, expand_vec_condeq_optab_fn): Delete.
1186         (expand_vect_cond_mask_optab_fn): Rename to...
1187         (expand_vec_cond_mask_optab_fn): ...this, replacing old macro.
1188         (direct_vec_cond_mask_optab_supported_p): Treat the optab as a
1189         convert optab.
1190         (direct_vec_cond_optab_supported_p): Likewise.
1191         (direct_vec_condu_optab_supported_p): Delete.
1192         (direct_vec_condeq_optab_supported_p): Delete.
1193         * gimple-isel.cc: Include internal-fn.h.
1194         (gimple_expand_vec_cond_expr): Check that IFN_VCONDEQ is supported
1195         before using it.
1196
1197 2021-01-07  Richard Sandiford  <richard.sandiford@arm.com>
1198
1199         PR tree-optimization/98560
1200         * gimple-isel.cc (gimple_expand_vec_cond_expr): If we fail to use
1201         IFN_VCOND{,U,EQ}, fall back on IFN_VCOND_MASK.
1202
1203 2021-01-07  Uroš Bizjak  <ubizjak@gmail.com>
1204
1205         * config/i386/i386.md (insn): Merge from plusminus_insn, shift_insn,
1206         rotate_insn and optab code attributes.
1207         Update all uses to merged code attribute.
1208         * config/i386/sse.md: Update all uses to merged code attribute.
1209         * config/i386/mmx.md: Update all uses to merged code attribute.
1210
1211 2021-01-07  Jakub Jelinek  <jakub@redhat.com>
1212
1213         PR tree-optimization/98568
1214         * gimple-ssa-store-merging.c (bswap_view_convert): New function.
1215         (bswap_replace): Use it.
1216
1217 2021-01-06  Vladimir N. Makarov  <vmakarov@redhat.com>
1218
1219         PR rtl-optimization/97978
1220         * lra-int.h (lra_hard_reg_split_p): New external.
1221         * lra.c (lra_hard_reg_split_p): New global.
1222         (lra): Set up lra_hard_reg_split_p after splitting a hard reg.
1223         * lra-assigns.c (lra_assign): Don't check allocation correctness
1224         after hard reg splitting.
1225
1226 2021-01-06  Martin Sebor  <msebor@redhat.com>
1227
1228         PR c++/98305
1229         * builtins.c (new_delete_mismatch_p): New overload.
1230         (new_delete_mismatch_p (tree, tree)): Call it.
1231
1232 2021-01-06  Alexandre Oliva  <oliva@adacore.com>
1233
1234         * Makefile.in (T_GLIMITS_H): New.
1235         (stmp-int-hdrs): Depend on it, use it.
1236         * config/t-vxworks (T_GLIMITS_H): Override it.
1237         (vxw-glimits.h): New.
1238
1239 2021-01-06  Richard Biener  <rguenther@suse.de>
1240
1241         PR tree-optimization/98513
1242         * value-range.cc (intersect_ranges): Compare the upper bounds
1243         for the expected relation.
1244
1245 2021-01-06  Gerald Pfeifer  <gerald@pfeifer.com>
1246
1247         Revert:
1248         2020-12-28  Gerald Pfeifer  <gerald@pfeifer.com>
1249
1250         * doc/standards.texi (HSAIL): Remove section.
1251
1252 2021-01-05  Samuel Thibault  <samuel.thibault@ens-lyon.org>
1253
1254         * configure: Re-generate.
1255
1256 2021-01-05  Jakub Jelinek  <jakub@redhat.com>
1257
1258         * doc/invoke.texi (-std=c++20): Adjust for the publication of
1259         ISO 14882:2020 standard.
1260         * doc/standards.texi: Likewise.
1261
1262 2021-01-05  Jakub Jelinek  <jakub@redhat.com>
1263
1264         PR tree-optimization/94802
1265         * expr.h (maybe_optimize_sub_cmp_0): Declare.
1266         * expr.c: Include tree-pretty-print.h and flags.h.
1267         (maybe_optimize_sub_cmp_0): New function.
1268         (do_store_flag): Use it.
1269         * cfgexpand.c (expand_gimple_cond): Likewise.
1270
1271 2021-01-05  Richard Sandiford  <richard.sandiford@arm.com>
1272
1273         * mux-utils.h (pointer_mux::m_ptr): Tweak description of contents.
1274         * rtlanal.c (simple_regno_set): Tweak description to clarify the
1275         RMW condition.
1276
1277 2021-01-05  Richard Biener  <rguenther@suse.de>
1278
1279         PR tree-optimization/98516
1280         * tree-vect-slp.c (vect_optimize_slp): Permute the incoming
1281         lanes when materializing on a VEC_PERM node.
1282         (vectorizable_slp_permutation): Dump the permute properly.
1283
1284 2021-01-05  Richard Biener  <rguenther@suse.de>
1285
1286         * tree-vect-slp.c (vect_slp_region): Move debug counter
1287         to cover individual subgraphs.
1288
1289 2021-01-05  Richard Biener  <rguenther@suse.de>
1290
1291         PR tree-optimization/98428
1292         * tree-vect-slp.c (vect_build_slp_tree_1): Properly reject
1293         vector lane extracts for loop vectorization.
1294
1295 2021-01-05  Jakub Jelinek  <jakub@redhat.com>
1296
1297         PR tree-optimization/98514
1298         * tree-ssa-reassoc.c (bb_rank): Change type from long * to
1299         int64_t *.
1300         (operand_rank): Change type from hash_map<tree, long> to
1301         hash_map<tree, int64_t>.
1302         (phi_rank): Change return type from long to int64_t.
1303         (loop_carried_phi): Change block_rank variable type from long to
1304         int64_t.
1305         (propagate_rank): Change return type, rank parameter type and
1306         op_rank variable type from long to int64_t.
1307         (find_operand_rank): Change return type from long to int64_t
1308         and change slot variable type from long * to int64_t *.
1309         (insert_operand_rank): Change rank parameter type from long to
1310         int64_t.
1311         (get_rank): Change return type and rank variable type from long to
1312         int64_t.  Use PRId64 instead of ld to print the rank.
1313         (init_reassoc): Change rank variable type from long to int64_t
1314         and adjust correspondingly bb_rank and operand_rank initialization.
1315
1316 2021-01-05  Jakub Jelinek  <jakub@redhat.com>
1317
1318         PR tree-optimization/96928
1319         * tree-ssa-phiopt.c (xor_replacement): New function.
1320         (tree_ssa_phiopt_worker): Call it.
1321
1322 2021-01-05  Jakub Jelinek  <jakub@redhat.com>
1323
1324         PR tree-optimization/96930
1325         * match.pd ((A / (1 << B)) -> (A >> B)): If A is extended
1326         from narrower value which has the same type as 1 << B, perform
1327         the right shift on the narrower value followed by extension.
1328
1329 2021-01-05  Jakub Jelinek  <jakub@redhat.com>
1330
1331         PR tree-optimization/96239
1332         * gimple-ssa-store-merging.c (maybe_optimize_vector_constructor): New
1333         function.
1334         (get_status_for_store_merging): Don't return BB_INVALID for blocks
1335         with potential bswap optimizable CONSTRUCTORs.
1336         (pass_store_merging::execute): Optimize vector CONSTRUCTORs with bswap
1337         if possible.
1338
1339 2021-01-05  Richard Biener  <rguenther@suse.de>
1340
1341         PR tree-optimization/98381
1342         * tree.c (vector_element_bits): Properly compute bool vector
1343         element size.
1344         * tree-vect-loop.c (vectorizable_live_operation): Properly
1345         compute the last lane bit offset.
1346
1347 2021-01-05  Uroš Bizjak  <ubizjak@gmail.com>
1348
1349         PR target/98522
1350         * config/i386/sse.md (sse_cvtps2pi): Redefine as define_insn_and_split.
1351         Clear the top 64 bytes of the input XMM register.
1352         (sse_cvttps2pi): Ditto.
1353
1354 2021-01-05  Uroš Bizjak  <ubizjak@gmail.com>
1355
1356         PR target/98521
1357         * config/i386/xopintrin.h (_mm256_cmov_si256): New.
1358
1359 2021-01-05  H.J. Lu  <hjl.tools@gmail.com>
1360
1361         PR target/98495
1362         * config/i386/xmmintrin.h (_mm_extract_pi16): Cast to unsigned
1363         short first.
1364
1365 2021-01-05  Claudiu Zissulescu  <claziss@synopsys.com>
1366
1367         * config/arc/arc.md (maddsidi4_split): Use ACC_REG_FIRST.
1368         (umaddsidi4_split): Likewise.
1369
1370 2021-01-05  liuhongt  <hongtao.liu@intel.com>
1371
1372         PR target/98461
1373         * config/i386/sse.md (*sse2_pmovskb_zexthisi): New
1374         define_insn_and_split for zero_extend of subreg HI of pmovskb
1375         result.
1376         (*sse2_pmovskb_zexthisi): Add new combine splitters for
1377         zero_extend of not of subreg HI of pmovskb result.
1378
1379 2021-01-05  Richard Sandiford  <richard.sandiford@arm.com>
1380
1381         PR target/97269
1382         * explow.c (convert_memory_address_addr_space_1): Handle UNSPECs
1383         nested in CONSTs.
1384         * config/aarch64/aarch64.c (aarch64_expand_mov_immediate): Use
1385         convert_memory_address to convert symbolic immediates to ptr_mode
1386         before forcing them to memory.
1387
1388 2021-01-05  Richard Sandiford  <richard.sandiford@arm.com>
1389
1390         PR rtl-optimization/97144
1391         * recog.c (constrain_operands): Initialize matching_operand
1392         for each alternative, rather than only doing it once.
1393
1394 2021-01-05  Richard Sandiford  <richard.sandiford@arm.com>
1395
1396         PR rtl-optimization/98403
1397         * rtl-ssa/changes.cc (function_info::finalize_new_accesses): Explain
1398         why we don't remove call clobbers.
1399         (function_info::apply_changes_to_insn): Don't attempt to add
1400         call clobbers here.
1401
1402 2021-01-05  Richard Sandiford  <richard.sandiford@arm.com>
1403
1404         PR tree-optimization/98371
1405         * tree-vect-loop.c (vect_reanalyze_as_main_loop): New function.
1406         (vect_analyze_loop): If an epilogue loop appears to be cheaper
1407         than the main loop, re-analyze it as a main loop before adopting
1408         it as a main loop.
1409
1410 2021-01-05  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1411
1412         PR c++/98316
1413         * configure.ac (NETLIBS): Determine using AX_LIB_SOCKET_NSL.
1414         * aclocal.m4, configure: Regenerate.
1415         * Makefile.in (NETLIBS): Define.
1416         (BACKEND): Remove $(CODYLIB).
1417
1418 2021-01-05  Jakub Jelinek  <jakub@redhat.com>
1419
1420         PR rtl-optimization/98334
1421         * simplify-rtx.c (simplify_context::simplify_binary_operation_1):
1422         Optimize (X - 1) * Y + Y to X * Y or (X + 1) * Y - Y to X * Y.
1423
1424 2021-01-05  Bernd Edlinger  <bernd.edlinger@hotmail.de>
1425
1426         * tree-inline.c (expand_call_inline): Restore input_location.
1427         Return result from recursive call.
1428
1429 2021-01-04  Richard Sandiford  <richard.sandiford@arm.com>
1430
1431         PR tree-optimization/95401
1432         * config/aarch64/aarch64-sve-builtins.cc
1433         (gimple_folder::load_store_cookie): Use bits rather than bytes
1434         for the alignment argument to IFN_MASK_LOAD and IFN_MASK_STORE.
1435         * gimple-fold.c (gimple_fold_mask_load_store_mem_ref): Likewise.
1436         * tree-vect-stmts.c (vectorizable_store): Likewise.
1437         (vectorizable_load): Likewise.
1438
1439 2021-01-04  Richard Biener  <rguenther@suse.de>
1440
1441         PR tree-optimization/98308
1442         * tree-vect-stmts.c (vectorizable_load): Set invariant mask
1443         SLP vectype.
1444
1445 2021-01-04  Jakub Jelinek  <jakub@redhat.com>
1446
1447         PR tree-optimization/95771
1448         * tree-ssa-loop-niter.c (number_of_iterations_popcount): Handle types
1449         with precision smaller than int's precision and types with precision
1450         twice as large as long long.  Formatting fixes.
1451
1452 2021-01-04  Richard Biener  <rguenther@suse.de>
1453
1454         PR tree-optimization/98464
1455         * tree-ssa-sccvn.c (vn_valueize_for_srt): Rename from ...
1456         (vn_valueize_wrapper): ... this.  Temporarily adjust vn_context_bb.
1457         (process_bb): Adjust.
1458
1459 2021-01-04  Matthew Malcomson  <matthew.malcomson@arm.com>
1460
1461         PR other/98437
1462         * doc/invoke.texi (-fsanitize=address): Fix wording describing
1463         clash with -fsanitize=hwaddress.
1464
1465 2021-01-04  Richard Biener  <rguenther@suse.de>
1466
1467         PR tree-optimization/98282
1468         * tree-ssa-sccvn.c (vn_get_stmt_kind): Classify tcc_reference on
1469         invariants as VN_NARY.
1470
1471 2021-01-04  Richard Sandiford  <richard.sandiford@arm.com>
1472
1473         PR target/89057
1474         * config/aarch64/aarch64-simd.md (aarch64_combine<mode>): Accept
1475         aarch64_simd_reg_or_zero for operand 2.  Use the combinez patterns
1476         to handle zero operands.
1477
1478 2021-01-04  Richard Sandiford  <richard.sandiford@arm.com>
1479
1480         * config/aarch64/aarch64.c (offset_6bit_signed_scaled_p): New function.
1481         (offset_6bit_unsigned_scaled_p): Fix typo in comment.
1482         (aarch64_sve_prefetch_operand_p): Accept MUL VLs in the range
1483         [-32, 31].
1484
1485 2021-01-04  Richard Biener  <rguenther@suse.de>
1486
1487         PR tree-optimization/98393
1488         * tree-vect-slp.c (vect_build_slp_tree): Properly zero matches
1489         when hitting the limit.
1490
1491 2021-01-04  Richard Biener  <rguenther@suse.de>
1492
1493         PR tree-optimization/98291
1494         * tree-vect-loop.c (vectorizable_reduction): Bypass
1495         associativity check for SLP reductions with VF 1.
1496
1497 2021-01-04  Jakub Jelinek  <jakub@redhat.com>
1498
1499         PR tree-optimization/96782
1500         * match.pd (x == ~x -> false, x != ~x -> true): New simplifications.
1501
1502 2021-01-04  Bernd Edlinger  <bernd.edlinger@hotmail.de>
1503
1504         * collect-utils.c (collect_execute): Check dumppfx.
1505         * collect2.c (maybe_run_lto_and_relink, do_link): Pass atsuffix
1506         to collect_execute.
1507         (do_link): Add new parameter atsuffix.
1508         (main): Handle -dumpdir option.  Skip one argument for
1509         -o, -isystem and -B options.
1510         * gcc.c (make_at_file): New helper function.
1511         (close_at_file): Use it.
1512
1513 2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>
1514
1515         * config/darwin.h (MIN_LD64_NO_COAL_SECTS): Adjust.
1516         Amend handling for LD64_VERSION fallback defaults.
1517
1518 2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>
1519
1520         * config.gcc: Compute default version information
1521         from the configured target.  Likewise defaults for
1522         ld64.
1523         * config/darwin10.h: Removed.
1524         * config/darwin12.h: Removed.
1525         * config/darwin9.h: Removed.
1526         * config/rs6000/darwin8.h: Removed.
1527
1528 2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>
1529
1530         * config/darwin9.h (ASM_OUTPUT_ALIGNED_COMMON): Delete.
1531
1532 2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>
1533
1534         * config/darwin9.h (STACK_CHECK_STATIC_BUILTIN): Move from here..
1535         * config/darwin.h (STACK_CHECK_STATIC_BUILTIN): .. to here.
1536
1537 2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>
1538
1539         * config/darwin10.h (LINK_GCC_C_SEQUENCE_SPEC): Move from
1540         here...
1541         * config/darwin.h (LINK_GCC_C_SEQUENCE_SPEC): ... to here.
1542
1543 2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>
1544
1545         * config/darwin10.h (LINK_GCC_C_SEQUENCE_SPEC): Move the spec
1546         for the Darwin10 unwinder stub from here ...
1547         * config/darwin.h (LINK_COMMAND_SPEC_A): ... to here.
1548
1549 2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>
1550
1551         * config/darwin.h (DSYMUTIL_SPEC): Default to DWARF
1552         (ASM_DEBUG_SPEC):Only define if the assembler supports
1553         stabs.
1554         (PREFERRED_DEBUGGING_TYPE): Default to DWARF.
1555         (DARWIN_PREFER_DWARF): Define.
1556         * config/darwin9.h (PREFERRED_DEBUGGING_TYPE): Remove.
1557         (DARWIN_PREFER_DWARF): Likewise
1558         (DSYMUTIL_SPEC): Likewise.
1559         (COLLECT_RUN_DSYMUTIL): Likewise.
1560         (ASM_DEBUG_SPEC): Likewise.
1561         (ASM_DEBUG_OPTION_SPEC): Likewise.
1562
1563 2021-01-02  Jan Hubicka  <jh@suse.cz>
1564
1565         * cfg.c (free_block): ggc_free bb.
1566
1567 2021-01-01  Jakub Jelinek  <jakub@redhat.com>
1568
1569         * gcc.c (process_command): Update copyright notice dates.
1570         * gcov-dump.c (print_version): Ditto.
1571         * gcov.c (print_version): Ditto.
1572         * gcov-tool.c (print_version): Ditto.
1573         * gengtype.c (create_file): Ditto.
1574         * doc/cpp.texi: Bump @copying's copyright year.
1575         * doc/cppinternals.texi: Ditto.
1576         * doc/gcc.texi: Ditto.
1577         * doc/gccint.texi: Ditto.
1578         * doc/gcov.texi: Ditto.
1579         * doc/install.texi: Ditto.
1580         * doc/invoke.texi: Ditto.
1581
1582 2021-01-01  Jakub Jelinek  <jakub@redhat.com>
1583
1584         * ChangeLog-2020: Rotate ChangeLog.  New file.
1585
1586 \f
1587 Copyright (C) 2021 Free Software Foundation, Inc.
1588
1589 Copying and distribution of this file, with or without modification,
1590 are permitted in any medium without royalty provided the copyright
1591 notice and this notice are preserved.