gcc/ChangeLog

   1 2021-01-19  Martin Sebor  <msebor@redhat.com>
   2
   3         PR middle-end/98664
   4         * tree-ssa-live.c (remove_unused_scope_block_p): Keep scopes for
   5         all functions, even if they're not declared artificial or inline.
   6         * tree.c (tree_inlined_location): Use macro expansion location
   7         only if scope traversal fails to expose one.
   8
   9 2021-01-19  Richard Sandiford  <richard.sandiford@arm.com>
  10
  11         PR rtl-optimization/92294
  12         * alias.c (compare_base_symbol_refs): Take an extra parameter
  13         and add the distance between two symbols to it.  Enshrine in
  14         comments that -1 means "either 0 or 1, but we can't tell
  15         which at compile time".
  16         (memrefs_conflict_p): Update call accordingly.
  17         (rtx_equal_for_memref_p): Likewise.  Take the distance between symbols
  18         into account.
  19
  20 2021-01-19  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
  21
  22         * config/aarch64/aarch64-simd-builtins.def (sqshl, uqshl,
  23         sqrshl, uqrshl, sqadd, uqadd, sqsub, uqsub, suqadd, usqadd, sqmovn,
  24         uqmovn, sqxtn2, uqxtn2, sqabs, sqneg, sqdmlal, sqdmlsl, sqdmlal_lane,
  25         sqdmlsl_lane, sqdmlal_laneq, sqdmlsl_laneq, sqdmlal_n, sqdmlsl_n,
  26         sqdmlal2, sqdmlsl2, sqdmlal2_lane, sqdmlsl2_lane, sqdmlal2_laneq,
  27         sqdmlsl2_laneq, sqdmlal2_n, sqdmlsl2_n, sqdmull, sqdmull_lane,
  28         sqdmull_laneq, sqdmull_n, sqdmull2, sqdmull2_lane, sqdmull2_laneq,
  29         sqdmull2_n, sqdmulh, sqrdmulh, sqdmulh_lane, sqdmulh_laneq,
  30         sqrdmulh_lane, sqrdmulh_laneq, sqshrun_n, sqrshrun_n, sqshrn_n,
  31         uqshrn_n, sqrshrn_n, uqrshrn_n, sqshlu_n, sqshl_n, uqshl_n, sqrdmlah,
  32         sqrdmlsh, sqrdmlah_lane, sqrdmlsh_lane, sqrdmlah_laneq, sqrdmlsh_laneq,
  33         sqmovun): Use NONE flags.
  34
  35 2021-01-19  Richard Biener  <rguenther@suse.de>
  36
  37         PR ipa/98330
  38         * ipa-modref.c (analyze_stmt): Only record a summary for a
  39         direct call.
  40
  41 2021-01-19  Richard Biener  <rguenther@suse.de>
  42
  43         PR middle-end/98638
  44         * tree-ssanames.c (fini_ssanames): Zero SSA_NAME_DEF_STMT.
  45
  46 2021-01-19  Daniel Hellstrom  <daniel@gaisler.com>
  47
  48         * config/sparc/rtemself.h (TARGET_OS_CPP_BUILTINS): Add
  49         built-in define __FIX_LEON3FT_TN0018.
  50
  51 2021-01-19  Richard Biener  <rguenther@suse.de>
  52
  53         PR ipa/97673
  54         * tree-inline.c (tree_function_versioning): Set input_location
  55         to UNKNOWN_LOCATION throughout the function.
  56
  57 2021-01-19  Tobias Burnus  <tobias@codesourcery.com>
  58
  59         PR fortran/98476
  60         * omp-low.c (lower_omp_target): Handle nonpointer is_device_ptr.
  61
  62 2021-01-19  Martin Jambor  <mjambor@suse.cz>
  63
  64         PR ipa/98690
  65         * ipa-sra.c (ssa_name_only_returned_p): New parameter fun.  Check
  66         whether non-call exceptions allow removal of a statement.
  67         (isra_analyze_call): Pass the appropriate function to
  68         ssa_name_only_returned_p.
  69
  70 2021-01-19  Geng Qi  <gengqi@linux.alibaba.com>
  71
  72         * config/riscv/arch-canonicalize (longext_sort): New function for
  73          sorting 'multi-letter'.
  74         * config/riscv/multilib-generator: Adjusting the loop of 'alt' in
  75         'alts'. The 'arch' may not be the first of 'alts'.
  76         (_expand_combination): Add underline for the 'ext' without '*'.
  77         This is because, a single-letter extension can always be treated well
  78         with a '_' prefix, but it cannot be separated out if it is appended
  79         to a multi-letter.
  80
  81 2021-01-18  Vladimir N. Makarov  <vmakarov@redhat.com>
  82
  83         PR target/97847
  84         * ira.c (ira): Skip abnormal critical edge splitting.
  85
  86 2021-01-18  Jakub Jelinek  <jakub@redhat.com>
  87
  88         PR tree-optimization/98727
  89         * tree-ssa-math-opts.c (match_arith_overflow): Fix up computation of
  90         second .MUL_OVERFLOW operand for signed multiplication with overflow
  91         checking if the second operand of multiplication is not constant.
  92
  93 2021-01-18  David Edelsohn  <dje.gcc@gmail.com>
  94
  95         * doc/invoke.texi (-gdwarf): TPF defaults to version 2 and AIX
  96         defaults to version 4.
  97
  98 2021-01-18  David Malcolm  <dmalcolm@redhat.com>
  99
 100         * attribs.h (fndecl_dealloc_argno): New decl.
 101         * builtins.c (call_dealloc_argno): Split out second half of
 102         function into...
 103         (fndecl_dealloc_argno): New.
 104         * doc/extend.texi (Common Function Attributes): Document the
 105         interaction between the analyzer and the malloc attribute.
 106         * doc/invoke.texi (Static Analyzer Options): Likewise.
 107
 108 2021-01-17  David Edelsohn  <dje.gcc@gmail.com>
 109
 110         * config/rs6000/aix71.h (SUBTARGET_OVERRIDE_OPTIONS): Override
 111         dwarf_version to 4.
 112         * config/rs6000/aix72.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
 113
 114 2021-01-17  Martin Jambor  <mjambor@suse.cz>
 115
 116         PR ipa/98222
 117         * cgraph.c (clone_of_p): Check also former_clone_of as we climb
 118         the clone tree.
 119
 120 2021-01-17  Mark Wielaard  <mark@klomp.org>
 121
 122         * common.opt (gdwarf-): Init(5).
 123         * doc/invoke.texi (-gdwarf): Document default to 5.
 124
 125 2021-01-16  Kwok Cheung Yeung  <kcy@codesourcery.com>
 126
 127         * builtin-types.def
 128         (BT_FN_VOID_OMPFN_PTR_OMPCPYFN_LONG_LONG_BOOL_UINT_PTR_INT): Rename
 129         to...
 130         (BT_FN_VOID_OMPFN_PTR_OMPCPYFN_LONG_LONG_BOOL_UINT_PTR_INT_PTR):
 131         ...this.  Add extra argument.
 132         * gimplify.c (omp_default_clause): Ensure that event handle is
 133         firstprivate in a task region.
 134         (gimplify_scan_omp_clauses): Handle OMP_CLAUSE_DETACH.
 135         (gimplify_adjust_omp_clauses): Likewise.
 136         * omp-builtins.def (BUILT_IN_GOMP_TASK): Change function type to
 137         BT_FN_VOID_OMPFN_PTR_OMPCPYFN_LONG_LONG_BOOL_UINT_PTR_INT_PTR.
 138         * omp-expand.c (expand_task_call): Add GOMP_TASK_FLAG_DETACH to flags
 139         if detach clause specified.  Add detach argument when generating
 140         call to GOMP_task.
 141         * omp-low.c (scan_sharing_clauses): Setup data environment for detach
 142         clause.
 143         (finish_taskreg_scan): Move field for variable containing the event
 144         handle to the front of the struct.
 145         * tree-core.h (enum omp_clause_code): Add OMP_CLAUSE_DETACH.  Fix
 146         ordering.
 147         * tree-nested.c (convert_nonlocal_omp_clauses): Handle
 148         OMP_CLAUSE_DETACH clause.
 149         (convert_local_omp_clauses): Handle OMP_CLAUSE_DETACH clause.
 150         * tree-pretty-print.c (dump_omp_clause): Handle OMP_CLAUSE_DETACH.
 151         * tree.c (omp_clause_num_ops): Add entry for OMP_CLAUSE_DETACH.
 152         Fix ordering.
 153         (omp_clause_code_name): Add entry for OMP_CLAUSE_DETACH.  Fix
 154         ordering.
 155         (walk_tree_1): Handle OMP_CLAUSE_DETACH.
 156
 157 2021-01-16  Sebastian Huber  <sebastian.huber@embedded-brains.de>
 158
 159         * config/nios2/t-rtems: Reset all MULTILIB_* variables.  Shorten
 160         multilib directory names.  Use MULTILIB_REQUIRED instead of
 161         MULTILIB_EXCEPTIONS.  Add -mhw-mul -mhw-mulx -mhw-div
 162         -mcustom-fpu-cfg=fph2 multilib.
 163
 164 2021-01-16  Sebastian Huber  <sebastian.huber@embedded-brains.de>
 165
 166         * config/nios2/nios2.c (NIOS2_FPU_CONFIG_NUM): Adjust value.
 167         (nios2_init_fpu_configs): Provide register values for new
 168         -mcustom-fpu-cfg=fph2 option variant.
 169         * doc/invoke.texi (-mcustom-fpu-cfg=fph2): Document new option
 170         variant.
 171
 172 2021-01-16  Sebastian Huber  <sebastian.huber@embedded-brains.de>
 173
 174         * config/nios2/nios2.c (nios2_custom_check_insns): Remove
 175         custom instruction warnings.
 176
 177 2021-01-16  Jakub Jelinek  <jakub@redhat.com>
 178
 179         PR tree-optimization/96669
 180         * match.pd ((CST << x) & 1 -> x == 0): New simplification.
 181
 182 2021-01-16  Jakub Jelinek  <jakub@redhat.com>
 183
 184         PR tree-optimization/96271
 185         * passes.def: Pass false argument to first two pass_cd_dce
 186         instances and true to last instance.  Add comment that
 187         last instance rewrites no longer addressed locals.
 188         * tree-ssa-dce.c (pass_cd_dce): Add update_address_taken_p member and
 189         initialize it.
 190         (pass_cd_dce::set_pass_param): New method.
 191         (pass_cd_dce::execute): Return TODO_update_address_taken from
 192         last cd_dce instance.
 193
 194 2021-01-15  Carl Love  <cel@us.ibm.com>
 195
 196         * config/rs6000/altivec.h (vec_mulh, vec_div, vec_dive, vec_mod):
 197         New defines.
 198         * config/rs6000/altivec.md (VIlong): Move define to file vsx.md.
 199         * config/rs6000/rs6000-builtin.def (DIVES_V4SI, DIVES_V2DI,
 200         DIVEU_V4SI, DIVEU_V2DI, DIVS_V4SI, DIVS_V2DI, DIVU_V4SI,
 201         DIVU_V2DI, MODS_V2DI, MODS_V4SI, MODU_V2DI, MODU_V4SI,
 202         MULHS_V2DI, MULHS_V4SI, MULHU_V2DI, MULHU_V4SI, MULLD_V2DI):
 203         Add builtin define.
 204         (MULH, DIVE, MOD):  Add new BU_P10_OVERLOAD_2 definitions.
 205         * config/rs6000/rs6000-call.c (VSX_BUILTIN_VEC_DIV,
 206         VSX_BUILTIN_VEC_DIVE, P10_BUILTIN_VEC_MOD, P10_BUILTIN_VEC_MULH):
 207         New overloaded definitions.
 208         (builtin_function_type) [P10V_BUILTIN_DIVEU_V4SI,
 209         P10V_BUILTIN_DIVEU_V2DI, P10V_BUILTIN_DIVU_V4SI,
 210         P10V_BUILTIN_DIVU_V2DI, P10V_BUILTIN_MODU_V2DI,
 211         P10V_BUILTIN_MODU_V4SI, P10V_BUILTIN_MULHU_V2DI,
 212         P10V_BUILTIN_MULHU_V4SI]: Add case
 213         statement for builtins.
 214         * config/rs6000/rs6000.md (bits): Add new attribute sizes V4SI, V2DI.
 215         * config/rs6000/vsx.md (VIlong): Moved from config/rs6000/altivec.md.
 216         (UNSPEC_VDIVES, UNSPEC_VDIVEU): New unspec definitions.
 217         (vsx_mul_v2di): Add if TARGET_POWER10 statement.
 218         (vsx_udiv_v2di): Add if TARGET_POWER10 statement.
 219         (dives_<mode>, diveu_<mode>, div<mode>3, uvdiv<mode>3,
 220         mods_<mode>, modu_<mode>, mulhs_<mode>, mulhu_<mode>, mulv2di3):
 221         Add define_insn, mode is VIlong.
 222         * doc/extend.texi (vec_mulh, vec_mul, vec_div, vec_dive, vec_mod):
 223         Add builtin descriptions.
 224
 225 2021-01-15  Eric Botcazou  <ebotcazou@adacore.com>
 226
 227         * final.c (final_start_function_1): Reset force_source_line.
 228
 229 2021-01-15  Jakub Jelinek  <jakub@redhat.com>
 230
 231         PR tree-optimization/96669
 232         * match.pd (((1 << A) & 1) != 0 -> A == 0,
 233         ((1 << A) & 1) == 0 -> A != 0): Generalize for 1s replaced by
 234         possibly different power of two constants and to right shift too.
 235
 236 2021-01-15  Jakub Jelinek  <jakub@redhat.com>
 237
 238         PR tree-optimization/96681
 239         * match.pd ((x < 0) ^ (y < 0) to (x ^ y) < 0): New simplification.
 240         ((x >= 0) ^ (y >= 0) to (x ^ y) < 0): Likewise.
 241         ((x < 0) ^ (y >= 0) to (x ^ y) >= 0): Likewise.
 242         ((x >= 0) ^ (y < 0) to (x ^ y) >= 0): Likewise.
 243
 244 2021-01-15  Alexandre Oliva  <oliva@adacore.com>
 245
 246         * opts.c (gen_command_line_string): Exclude -dumpbase-ext.
 247
 248 2021-01-15  Tamar Christina  <tamar.christina@arm.com>
 249
 250         * config/aarch64/aarch64-simd.md (cml<fcmac1><conj_op><mode>4,
 251         cmul<conj_op><mode>3): New.
 252         * config/aarch64/iterators.md (UNSPEC_FCMUL,
 253         UNSPEC_FCMUL180, UNSPEC_FCMLA_CONJ, UNSPEC_FCMLA180_CONJ,
 254         UNSPEC_CMLA_CONJ, UNSPEC_CMLA180_CONJ, UNSPEC_CMUL, UNSPEC_CMUL180,
 255         FCMLA_OP, FCMUL_OP, conj_op, rotsplit1, rotsplit2, fcmac1, sve_rot1,
 256         sve_rot2, SVE2_INT_CMLA_OP, SVE2_INT_CMUL_OP, SVE2_INT_CADD_OP): New.
 257         (rot): Add UNSPEC_FCMUL, UNSPEC_FCMUL180.
 258         (rot_op): Renamed to conj_op.
 259         * config/aarch64/aarch64-sve.md (cml<fcmac1><conj_op><mode>4,
 260         cmul<conj_op><mode>3): New.
 261         * config/aarch64/aarch64-sve2.md (cml<fcmac1><conj_op><mode>4,
 262         cmul<conj_op><mode>3): New.
 263
 264 2021-01-15  David Malcolm  <dmalcolm@redhat.com>
 265
 266         PR bootstrap/98696
 267         * diagnostic.c
 268         (selftest::test_print_parseable_fixits_bytes_vs_display_columns):
 269         Escape the tempfile name when constructing the expected output.
 270
 271 2021-01-15  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 272
 273         * config/aarch64/aarch64-simd.md (*aarch64_<su>mlsl_hi<mode>):
 274         Rename to...
 275         (aarch64_<su>mlsl_hi<mode>): ... This.
 276         (aarch64_<su>mlsl_hi<mode>): Define.
 277         (*aarch64_<su>mlsl<mode): Rename to...
 278         (aarch64_<su>mlsl<mode): ... This.
 279         * config/aarch64/aarch64-simd-builtins.def (smlsl, umlsl,
 280         smlsl_hi, umlsl_hi): Define builtins.
 281         * config/aarch64/arm_neon.h (vmlsl_high_s8, vmlsl_high_s16,
 282         vmlsl_high_s32, vmlsl_high_u8, vmlsl_high_u16, vmlsl_high_u32,
 283         vmlsl_s8, vmlsl_s16, vmlsl_s32, vmlsl_u8,
 284         vmlsl_u16, vmlsl_u32): Reimplement with builtins.
 285
 286 2021-01-15  Uroš Bizjak  <ubizjak@gmail.com>
 287
 288         * config/i386/i386-c.c (ix86_target_macros):
 289         Use cpp_define_formatted for __SIZEOF_FLOAT80__ definition.
 290
 291 2021-01-15  Richard Sandiford  <richard.sandiford@arm.com>
 292
 293         PR target/88836
 294         * config.gcc (aarch64*-*-*): Add aarch64-cc-fusion.o to extra_objs.
 295         * Makefile.in (RTL_SSA_H): New variable.
 296         * config/aarch64/t-aarch64 (aarch64-cc-fusion.o): New rule.
 297         * config/aarch64/aarch64-protos.h (make_pass_cc_fusion): Declare.
 298         * config/aarch64/aarch64-passes.def: Add pass_cc_fusion after
 299         pass_combine.
 300         * config/aarch64/aarch64-cc-fusion.cc: New file.
 301
 302 2021-01-15  Richard Sandiford  <richard.sandiford@arm.com>
 303
 304         * recog.h (insn_change_watermark::~insn_change_watermark): Avoid
 305         calling cancel_changes for changes that no longer exist.
 306
 307 2021-01-15  Richard Sandiford  <richard.sandiford@arm.com>
 308
 309         * rtl-ssa/functions.h (function_info::ref_defs): Rename to...
 310         (function_info::reg_defs): ...this.
 311         * rtl-ssa/member-fns.inl (function_info::ref_defs): Rename to...
 312         (function_info::reg_defs): ...this.
 313
 314 2021-01-15  Christophe Lyon  <christophe.lyon@linaro.org>
 315
 316         PR target/71233
 317         * config/arm/arm_neon.h (vceqz_p64, vceqq_p64, vceqzq_p64): New.
 318
 319 2021-01-15  Christophe Lyon  <christophe.lyon@linaro.org>
 320
 321         Revert:
 322         2021-01-15  Christophe Lyon  <christophe.lyon@linaro.org>
 323
 324         PR target/71233
 325         * config/arm/arm_neon.h (vceqz_p64, vceqq_p64, vceqzq_p64): New.
 326
 327 2021-01-15  Richard Biener  <rguenther@suse.de>
 328
 329         PR tree-optimization/96376
 330         * tree-vect-stmts.c (get_load_store_type): Disregard alignment
 331         for VMAT_INVARIANT.
 332
 333 2021-01-15  Martin Liska  <mliska@suse.cz>
 334
 335         * doc/install.texi: Document that some tests need pytest module.
 336         * doc/sourcebuild.texi: Likewise.
 337
 338 2021-01-15  Christophe Lyon  <christophe.lyon@linaro.org>
 339
 340         PR target/71233
 341         * config/arm/arm_neon.h (vceqz_p64, vceqq_p64, vceqzq_p64): New.
 342
 343 2021-01-15  Christophe Lyon  <christophe.lyon@linaro.org>
 344
 345         * config/arm/mve.md (mve_vshrq_n_s<mode>_imm): New entry.
 346         (mve_vshrq_n_u<mode>_imm): Likewise.
 347         * config/arm/neon.md (vashr<mode>3, vlshr<mode>3): Move to ...
 348         * config/arm/vec-common.md: ... here.
 349
 350 2021-01-15  Christophe Lyon  <christophe.lyon@linaro.org>
 351
 352         * config/arm/mve.md (mve_vshlq_<supf><mode>): Move to
 353         vec-commond.md.
 354         * config/arm/neon.md (vashl<mode>3): Delete.
 355         * config/arm/vec-common.md (mve_vshlq_<supf><mode>): New.
 356         (vasl<mode>3): New expander.
 357
 358 2021-01-15  Richard Biener  <rguenther@suse.de>
 359
 360         PR tree-optimization/98685
 361         * tree-vect-slp.c (vect_schedule_slp_node): Refactor handling
 362         of vector extern defs.
 363
 364 2021-01-14  David Malcolm  <dmalcolm@redhat.com>
 365
 366         PR jit/98586
 367         * diagnostic.c (diagnostic_kind_text): Break out this array
 368         from...
 369         (diagnostic_build_prefix): ...here.
 370         (fancy_abort): Detect when diagnostic_initialize has not yet been
 371         called and fall back to a minimal implementation of printing the
 372         ICE, rather than segfaulting in internal_error.
 373
 374 2021-01-14  David Malcolm  <dmalcolm@redhat.com>
 375
 376         * diagnostic.c (diagnostic_initialize): Eliminate
 377         parseable_fixits_p in favor of initializing extra_output_kind from
 378         GCC_EXTRA_DIAGNOSTIC_OUTPUT.
 379         (convert_column_unit): New function, split out from...
 380         (diagnostic_converted_column): ...this.
 381         (print_parseable_fixits): Add "column_unit" and "tabstop" params.
 382         Use them to call convert_column_unit on the column values.
 383         (diagnostic_report_diagnostic): Eliminate conditional on
 384         parseable_fixits_p in favor of a switch statement on
 385         extra_output_kind, passing the appropriate values to the new
 386         params of print_parseable_fixits.
 387         (selftest::test_print_parseable_fixits_none): Update for new
 388         params of print_parseable_fixits.
 389         (selftest::test_print_parseable_fixits_insert): Likewise.
 390         (selftest::test_print_parseable_fixits_remove): Likewise.
 391         (selftest::test_print_parseable_fixits_replace): Likewise.
 392         (selftest::test_print_parseable_fixits_bytes_vs_display_columns):
 393         New.
 394         (selftest::diagnostic_c_tests): Call it.
 395         * diagnostic.h (enum diagnostics_extra_output_kind): New.
 396         (diagnostic_context::parseable_fixits_p): Delete field in favor
 397         of...
 398         (diagnostic_context::extra_output_kind): ...this new field.
 399         * doc/invoke.texi (Environment Variables): Add
 400         GCC_EXTRA_DIAGNOSTIC_OUTPUT.
 401         * opts.c (common_handle_option): Update handling of
 402         OPT_fdiagnostics_parseable_fixits for change to diagnostic_context
 403         fields.
 404
 405 2021-01-14  Tamar Christina  <tamar.christina@arm.com>
 406
 407         * tree-vect-slp-patterns.c (class complex_operations_pattern,
 408         complex_operations_pattern::matches,
 409         complex_operations_pattern::recognize,
 410         complex_operations_pattern::build): New.
 411         (slp_patterns): Use it.
 412
 413 2021-01-14  Tamar Christina  <tamar.christina@arm.com>
 414
 415         * internal-fn.def (COMPLEX_FMS, COMPLEX_FMS_CONJ): New.
 416         * optabs.def (cmls_optab, cmls_conj_optab): New.
 417         * doc/md.texi: Document them.
 418         * tree-vect-slp-patterns.c (class complex_fms_pattern,
 419         complex_fms_pattern::matches, complex_fms_pattern::recognize,
 420         complex_fms_pattern::build): New.
 421
 422 2021-01-14  Tamar Christina  <tamar.christina@arm.com>
 423
 424         * internal-fn.def (COMPLEX_FMA, COMPLEX_FMA_CONJ): New.
 425         * optabs.def (cmla_optab, cmla_conj_optab): New.
 426         * doc/md.texi: Document them.
 427         * tree-vect-slp-patterns.c (vect_match_call_p,
 428         class complex_fma_pattern, vect_slp_reset_pattern,
 429         complex_fma_pattern::matches, complex_fma_pattern::recognize,
 430         complex_fma_pattern::build): New.
 431
 432 2021-01-14  Tamar Christina  <tamar.christina@arm.com>
 433
 434         * internal-fn.def (COMPLEX_MUL, COMPLEX_MUL_CONJ): New.
 435         * optabs.def (cmul_optab, cmul_conj_optab): New.
 436         * doc/md.texi: Document them.
 437         * tree-vect-slp-patterns.c (vect_match_call_complex_mla,
 438         vect_normalize_conj_loc, is_eq_or_top, vect_validate_multiplication,
 439         vect_build_combine_node, class complex_mul_pattern,
 440         complex_mul_pattern::matches, complex_mul_pattern::recognize,
 441         complex_mul_pattern::build): New.
 442
 443 2021-01-14  Tamar Christina  <tamar.christina@arm.com>
 444
 445         * tree-vect-slp.c (optimize_load_redistribution_1): New.
 446         (optimize_load_redistribution, vect_is_slp_load_node): New.
 447         (vect_match_slp_patterns): Use it.
 448
 449 2021-01-14  Tamar Christina  <tamar.christina@arm.com>
 450
 451         * tree-vect-slp-patterns.c (complex_add_pattern::build):
 452         Elide nodes.
 453
 454 2021-01-14  Thomas Schwinge  <thomas@codesourcery.com>
 455
 456         * config/gcn/mkoffload.c (main): Create an offload image only in
 457         64-bit configurations.
 458
 459 2021-01-14  H.J. Lu  <hjl.tools@gmail.com>
 460
 461         PR target/98667
 462         * config/i386/i386-options.c (ix86_option_override_internal):
 463         Issue an error for -fcf-protection with CF_BRANCH when compiling
 464         for 32-bit non-TARGET_CMOV targets.
 465
 466 2021-01-14  Uroš Bizjak  <ubizjak@gmail.com>
 467
 468         PR target/98671
 469         * config/i386/i386-options.c (ix86_valid_target_attribute_inner_p):
 470         Remove declaration and initialization of shadow variable "ret".
 471         (ix86_option_override_internal): Remove delcaration of
 472         shadow variable "i".  Redeclare shadowed variable to unsigned.
 473         * common/config/i386/i386-common.c (pta_size): Redeclare to unsigned.
 474         * config/i386/i386-builtins.c (get_builtin_code_for_version):
 475         Update for redeclaration.
 476         * config/i386/i386.h (pta_size): Ditto.
 477
 478 2021-01-14  Richard Biener  <rguenther@suse.de>
 479
 480         PR tree-optimization/98674
 481         * tree-data-ref.c (base_supports_access_fn_components_p): New.
 482         (initialize_data_dependence_relation): For two bases without
 483         possible access fns resort to type size equality when determining
 484         shape compatibility.
 485
 486 2021-01-14  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
 487
 488         PR target/66791
 489         * config/arm/arm_neon.h: Replace calls to __builtin_vcge* by
 490         <=, >= operators in vcle and vcge intrinsics respectively.
 491         * config/arm/arm_neon_builtins.def: Remove entry for
 492         vcge and vcgeu.
 493
 494 2021-01-14  Uroš Bizjak  <ubizjak@gmail.com>
 495
 496         PR target/98671
 497         * config/i386/i386-options.c (ix86_function_specific_save):
 498         Remove redundant assignment to opts->x_ix86_branch_cost.
 499         * config/i386/i386.c (ix86_prefetch_sse):
 500         Rename from x86_prefetch_sse.  Update all uses.
 501         * config/i386/i386.h: Update for rename.
 502         * config/i386/i386-options.h: Ditto.
 503
 504 2021-01-14  Jakub Jelinek  <jakub@redhat.com>
 505
 506         PR target/98670
 507         * config/i386/sse.md (*sse4_1_zero_extendv8qiv8hi2_3,
 508         *sse4_1_zero_extendv4hiv4si2_3, *sse4_1_zero_extendv2siv2di2_3):
 509         Use Bm instead of m for non-avx.  Add isa attribute.
 510
 511 2021-01-14  Jakub Jelinek  <jakub@redhat.com>
 512
 513         PR tree-optimization/96688
 514         * match.pd (~(X >> Y) -> ~X >> Y): New simplification if
 515         ~X can be simplified.
 516
 517 2021-01-14  Richard Sandiford  <richard.sandiford@arm.com>
 518
 519         * tree-vect-stmts.c (vect_model_load_cost): Account for unused
 520         IFN_LOAD_LANES results.
 521
 522 2021-01-14  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 523
 524         * config/aarch64/aarch64-simd.md (aarch64_<su>xtl<mode>):
 525         Define.
 526         (aarch64_xtn<mode>): Likewise.
 527         * config/aarch64/aarch64-simd-builtins.def (sxtl, uxtl, xtn):
 528         Define
 529         builtins.
 530         * config/aarch64/arm_neon.h (vmovl_s8): Reimplement using
 531         builtin.
 532         (vmovl_s16): Likewise.
 533         (vmovl_s32): Likewise.
 534         (vmovl_u8): Likewise.
 535         (vmovl_u16): Likewise.
 536         (vmovl_u32): Likewise.
 537         (vmovn_s16): Likewise.
 538         (vmovn_s32): Likewise.
 539         (vmovn_s64): Likewise.
 540         (vmovn_u16): Likewise.
 541         (vmovn_u32): Likewise.
 542         (vmovn_u64): Likewise.
 543
 544 2021-01-14  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 545
 546         * config/aarch64/aarch64-simd.md (aarch64_<su>qxtn2<mode>_le):
 547         Define.
 548         (aarch64_<su>qxtn2<mode>_be): Likewise.
 549         (aarch64_<su>qxtn2<mode>): Likewise.
 550         * config/aarch64/aarch64-simd-builtins.def (sqxtn2, uqxtn2):
 551         Define builtins.
 552         * config/aarch64/iterators.md (SAT_TRUNC): Define code_iterator.
 553         (su): Handle ss_truncate and us_truncate.
 554         * config/aarch64/arm_neon.h (vqmovn_high_s16): Reimplement using
 555         builtin.
 556         (vqmovn_high_s32): Likewise.
 557         (vqmovn_high_s64): Likewise.
 558         (vqmovn_high_u16): Likewise.
 559         (vqmovn_high_u32): Likewise.
 560         (vqmovn_high_u64): Likewise.
 561
 562 2021-01-14  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 563
 564         * config/aarch64/aarch64-simd.md (aarch64_xtn2<mode>_le):
 565         Define.
 566         (aarch64_xtn2<mode>_be): Likewise.
 567         (aarch64_xtn2<mode>): Likewise.
 568         * config/aarch64/aarch64-simd-builtins.def (xtn2): Define
 569         builtins.
 570         * config/aarch64/arm_neon.h (vmovn_high_s16): Reimplement using
 571         builtins.
 572         (vmovn_high_s32): Likewise.
 573         (vmovn_high_s64): Likewise.
 574         (vmovn_high_u16): Likewise.
 575         (vmovn_high_u32): Likewise.
 576         (vmovn_high_u64): Likewise.
 577
 578 2021-01-13  Stafford Horne  <shorne@gmail.com>
 579
 580         * config/or1k/or1k.h (ASM_PREFERRED_EH_DATA_FORMAT): New macro.
 581
 582 2021-01-13  Stafford Horne  <shorne@gmail.com>
 583
 584         * config/or1k/linux.h (TARGET_ASM_FILE_END): Define macro.
 585
 586 2021-01-13  Stafford Horne  <shorne@gmail.com>
 587
 588         * config/or1k/or1k.h (TARGET_CPU_CPP_BUILTINS): Add builtin
 589           define for __or1k_hard_float__.
 590
 591 2021-01-13  Stafford Horne  <shorne@gmail.com>
 592
 593         * config/or1k/or1k.h (NO_PROFILE_COUNTERS): Define as 1.
 594         (PROFILE_HOOK): Define to call _mcount.
 595         (FUNCTION_PROFILER): Change from abort to no-op.
 596
 597 2021-01-13  Jakub Jelinek  <jakub@redhat.com>
 598
 599         PR tree-optimization/96691
 600         * match.pd ((~X | C) ^ D -> (X | C) ^ (~D ^ C),
 601         (~X & C) ^ D -> (X & C) ^ (D ^ C)): New simplifications if
 602         (~D ^ C) or (D ^ C) can be simplified.
 603
 604 2021-01-13  Richard Biener  <rguenther@suse.de>
 605
 606         PR tree-optimization/92645
 607         * match.pd (BIT_FIELD_REF to conversion): Delay canonicalization
 608         until after vector lowering.
 609
 610 2021-01-13  Richard Sandiford  <richard.sandiford@arm.com>
 611
 612         * config/aarch64/aarch64-sve.md (fnma<mode>4): Extend from SVE_FULL_I
 613         to SVE_I.
 614         (@aarch64_pred_fnma<mode>, cond_fnma<mode>, *cond_fnma<mode>_2)
 615         (*cond_fnma<mode>_4, *cond_fnma<mode>_any): Likewise.
 616
 617 2021-01-13  Richard Sandiford  <richard.sandiford@arm.com>
 618
 619         * config/aarch64/aarch64-sve.md (fma<mode>4): Extend from SVE_FULL_I
 620         to SVE_I.
 621         (@aarch64_pred_fma<mode>, cond_fma<mode>, *cond_fma<mode>_2)
 622         (*cond_fma<mode>_4, *cond_fma<mode>_any): Likewise.
 623
 624 2021-01-13  Richard Biener  <rguenther@suse.de>
 625
 626         PR tree-optimization/92645
 627         * tree-vect-slp.c (vect_build_slp_tree_1): Relax supported
 628         BIT_FIELD_REF argument.
 629         (vect_build_slp_tree_2): Record the desired vector type
 630         on the external vector def.
 631         (vectorizable_slp_permutation): Handle required punning
 632         of existing vector defs.
 633
 634 2021-01-13  Richard Sandiford  <richard.sandiford@arm.com>
 635
 636         * rtl-ssa/accesses.h (def_lookup): Fix order of comparison results.
 637
 638 2021-01-13  Richard Sandiford  <richard.sandiford@arm.com>
 639
 640         * config/sh/sh.md (movsf_ie): Remove operands[2] test.
 641
 642 2021-01-13  Samuel Thibault  <samuel.thibault@ens-lyon.org>
 643
 644         * config.gcc [$target == *-*-gnu*]: Enable
 645         'default_gnu_indirect_function'.
 646
 647 2021-01-13  Jakub Jelinek  <jakub@redhat.com>
 648
 649         PR target/95905
 650         * optabs.c (expand_vec_perm_const): Don't force v0 and v1 into
 651         registers before calling targetm.vectorize.vec_perm_const, only after
 652         that.
 653         * config/i386/i386-expand.c (ix86_vectorize_vec_perm_const): Handle
 654         two argument permutation when one operand is zero vector and only
 655         after that force operands into registers.
 656         * config/i386/sse.md (*avx2_zero_extendv16qiv16hi2_1): New
 657         define_insn_and_split pattern.
 658         (*avx512bw_zero_extendv32qiv32hi2_1): Likewise.
 659         (*avx512f_zero_extendv16hiv16si2_1): Likewise.
 660         (*avx2_zero_extendv8hiv8si2_1): Likewise.
 661         (*avx512f_zero_extendv8siv8di2_1): Likewise.
 662         (*avx2_zero_extendv4siv4di2_1): Likewise.
 663         * config/mips/mips.c (mips_vectorize_vec_perm_const): Force operands
 664         into registers.
 665         * config/arm/arm.c (arm_vectorize_vec_perm_const): Likewise.
 666         * config/sparc/sparc.c (sparc_vectorize_vec_perm_const): Likewise.
 667         * config/ia64/ia64.c (ia64_vectorize_vec_perm_const): Likewise.
 668         * config/aarch64/aarch64.c (aarch64_vectorize_vec_perm_const): Likewise.
 669         * config/rs6000/rs6000.c (rs6000_vectorize_vec_perm_const): Likewise.
 670         * config/gcn/gcn.c (gcn_vectorize_vec_perm_const): Likewise.  Use std::swap.
 671
 672 2021-01-13  Martin Liska  <mliska@suse.cz>
 673
 674         PR tree-optimization/98455
 675         * gimple-if-to-switch.cc (condition_info::record_phi_mapping):
 676         Record also virtual PHIs.
 677         (pass_if_to_switch::execute): Return TODO_cleanup_cfg only
 678         conditionally.
 679
 680 2021-01-13  Jonathan Wakely  <jwakely@redhat.com>
 681
 682         * doc/invoke.texi (C++ Modules): Fix typos.
 683
 684 2021-01-13  Richard Biener  <rguenther@suse.de>
 685
 686         PR tree-optimization/98640
 687         * tree-ssa-sccvn.c (visit_nary_op): Do not try to
 688         handle plus or minus from a truncated operand to be
 689         sign-extended.
 690
 691 2021-01-13  Jakub Jelinek  <jakub@redhat.com>
 692
 693         PR target/96938
 694         * config/i386/i386.md (*btr<mode>_1, *btr<mode>_2): New
 695         define_insn_and_split patterns.
 696         (splitter after *btr<mode>_2): New splitter.
 697
 698 2021-01-13  Martin Liska  <mliska@suse.cz>
 699
 700         PR ipa/98652
 701         * cgraphunit.c (analyze_functions): Remove dead code.
 702
 703 2021-01-13  Qian Jianhua  <qianjh@cn.fujitsu.com>
 704
 705         * config/aarch64/aarch64-cost-tables.h (a64fx_extra_costs): New.
 706         * config/aarch64/aarch64.c (a64fx_addrcost_table): New.
 707         (a64fx_regmove_cost, a64fx_vector_cost): New.
 708         (a64fx_tunings): Use the new added cost tables.
 709
 710 2021-01-13  Jakub Jelinek  <jakub@redhat.com>
 711
 712         PR target/95905
 713         * config/i386/predicates.md (pmovzx_parallel): New predicate.
 714         * config/i386/sse.md (*sse4_1_zero_extendv8qiv8hi2_3): New
 715         define_insn_and_split pattern.
 716         (*sse4_1_zero_extendv4hiv4si2_3): Likewise.
 717         (*sse4_1_zero_extendv2siv2di2_3): Likewise.
 718
 719 2021-01-13  Julian Brown  <julian@codesourcery.com>
 720
 721         * config/gcn/gcn.c (gcn_conditional_register_usage): Remove dead code
 722         to fix v0 register.
 723
 724 2021-01-13  Julian Brown  <julian@codesourcery.com>
 725
 726         * config/gcn/gcn.c (gcn_md_reorg): Fix case where EXEC reg is live
 727         on entry to a BB.
 728
 729 2021-01-13  Julian Brown  <julian@codesourcery.com>
 730
 731         * config/gcn/gcn-valu.md (recip<mode>2<exec>, recip<mode>2): Use unspec
 732         for reciprocal-approximation instructions.
 733         (div<mode>3): Use fused multiply-accumulate operations for reciprocal
 734         refinement and division result.
 735         * config/gcn/gcn.md (UNSPEC_RCP): New unspec constant.
 736
 737 2021-01-13  Julian Brown  <julian@codesourcery.com>
 738
 739         * config/gcn/gcn-valu.md (subdf): Rename to...
 740         (subdf3): This.
 741
 742 2021-01-12  Martin Liska  <mliska@suse.cz>
 743
 744         * gcov.c (source_info::debug): Fix printf format for 32-bit hosts.
 745
 746 2021-01-12  Andrea Corallo  <andrea.corallo@arm.com>
 747
 748         * function-abi.h: Fix typo.
 749
 750 2021-01-12  Christophe Lyon  <christophe.lyon@linaro.org>
 751
 752         PR target/97875
 753         PR target/97875
 754         * config/arm/arm.h (ARM_HAVE_NEON_V8QI_LDST): New macro.
 755         (ARM_HAVE_NEON_V16QI_LDST, ARM_HAVE_NEON_V4HI_LDST): Likewise.
 756         (ARM_HAVE_NEON_V8HI_LDST, ARM_HAVE_NEON_V2SI_LDST): Likewise.
 757         (ARM_HAVE_NEON_V4SI_LDST, ARM_HAVE_NEON_V4HF_LDST): Likewise.
 758         (ARM_HAVE_NEON_V8HF_LDST, ARM_HAVE_NEON_V4BF_LDST): Likewise.
 759         (ARM_HAVE_NEON_V8BF_LDST, ARM_HAVE_NEON_V2SF_LDST): Likewise.
 760         (ARM_HAVE_NEON_V4SF_LDST, ARM_HAVE_NEON_DI_LDST): Likewise.
 761         (ARM_HAVE_NEON_V2DI_LDST): Likewise.
 762         (ARM_HAVE_V8QI_LDST, ARM_HAVE_V16QI_LDST): Likewise.
 763         (ARM_HAVE_V4HI_LDST, ARM_HAVE_V8HI_LDST): Likewise.
 764         (ARM_HAVE_V2SI_LDST, ARM_HAVE_V4SI_LDST, ARM_HAVE_V4HF_LDST): Likewise.
 765         (ARM_HAVE_V8HF_LDST, ARM_HAVE_V4BF_LDST, ARM_HAVE_V8BF_LDST): Likewise.
 766         (ARM_HAVE_V2SF_LDST, ARM_HAVE_V4SF_LDST, ARM_HAVE_DI_LDST): Likewise.
 767         (ARM_HAVE_V2DI_LDST): Likewise.
 768         * config/arm/mve.md (*movmisalign<mode>_mve_store): New pattern.
 769         (*movmisalign<mode>_mve_load): New pattern.
 770         * config/arm/neon.md (movmisalign<mode>): Move to ...
 771         * config/arm/vec-common.md: ... here.
 772
 773 2021-01-12  Vladimir N. Makarov  <vmakarov@redhat.com>
 774
 775         PR target/97969
 776         * lra-eliminations.c (eliminate_regs_in_insn): Add transformation
 777         of pattern 'plus (plus (hard reg, const), pseudo)'.
 778
 779 2021-01-12  Richard Biener  <rguenther@suse.de>
 780
 781         PR tree-optimization/98550
 782         * tree-vect-slp.c (vect_record_max_nunits): Check whether
 783         the group size is a multiple of the vector element count.
 784         (vect_build_slp_tree_1): When we need to fail because
 785         the vector type choosen causes unrolling do so lazily
 786         without affecting matches only at the end to guide group splitting.
 787
 788 2021-01-12  Martin Liska  <mliska@suse.cz>
 789
 790         PR c++/97284
 791         * optc-save-gen.awk: Compare also n_target_save vars with
 792         strcmp.
 793
 794 2021-01-12  Martin Liska  <mliska@suse.cz>
 795
 796         * gcov.c (source_info::debug): New.
 797         (print_usage): Add --debug (-D) option.
 798         (process_args): Likewise.
 799         (generate_results): Call src->debug after
 800         accumulate_line_counts.
 801         (read_graph_file): Properly assign id for EXIT_BLOCK.
 802         * profile.c (branch_prob): Dump function body before it is
 803         instrumented.
 804
 805 2021-01-12  Jakub Jelinek  <jakub@redhat.com>
 806
 807         PR tree-optimization/98629
 808         * tree-ssa-math-opts.c (arith_overflow_check_p): Don't update use_stmt
 809         unless returning non-zero.
 810
 811 2021-01-12  Jakub Jelinek  <jakub@redhat.com>
 812
 813         PR tree-optimization/95731
 814         * tree-ssa-reassoc.c (optimize_range_tests_cmp_bitwise): Also optimize
 815         x < 0 && y < 0 && z < 0 into (x | y | z) < 0 for signed x, y, z.
 816         (optimize_range_tests): Call optimize_range_tests_cmp_bitwise
 817         only after optimize_range_tests_var_bound.
 818
 819 2021-01-12  Jakub Jelinek  <jakub@redhat.com>
 820
 821         * configure.ac: Ensure c/Make-lang.in comes first in @all_lang_makefrags@.
 822         * configure: Regenerated.
 823
 824 2021-01-12  liuhongt  <hongtao.liu@intel.com>
 825
 826         PR target/98612
 827         * config/i386/i386-builtins.h (BUILTIN_DESC_SWAP_OPERANDS):
 828         Deleted.
 829         * config/i386/i386-expand.c (ix86_expand_sse_comi): Delete
 830         dead code.
 831
 832 2021-01-12  Alexandre Oliva  <oliva@adacore.com>
 833
 834         * ssa-iterators.h (end_imm_use_stmt_traverse): Forward
 835         declare.
 836         (auto_end_imm_use_stmt_traverse): New struct.
 837         (FOR_EACH_IMM_USE_STMT): Use it.
 838         (BREAK_FROM_IMM_USE_STMT, RETURN_FROM_IMM_USE_STMT): Remove,
 839         along with uses...
 840         * gimple-ssa-strength-reduction.c: ... here, ...
 841         * graphite-scop-detection.c: ... here, ...
 842         * ipa-modref.c, ipa-pure-const.c, ipa-sra.c: ... here, ...
 843         * tree-predcom.c, tree-ssa-ccp.c: ... here, ...
 844         * tree-ssa-dce.c, tree-ssa-dse.c: ... here, ...
 845         * tree-ssa-loop-ivopts.c, tree-ssa-math-opts.c: ... here, ...
 846         * tree-ssa-phiprop.c, tree-ssa.c: ... here, ...
 847         * tree-vect-slp.c: ... and here, ...
 848         * doc/tree-ssa.texi: ... and the example here.
 849
 850 2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>
 851
 852         * config/aarch64/aarch64-sve.md (sdiv_pow2<mode>3): Extend from
 853         SVE_FULL_I to SVE_I.  Generate an UNSPEC_PRED_X.
 854         (*sdiv_pow2<mode>3): New pattern.
 855         (@cond_<sve_int_op><mode>): Extend from SVE_FULL_I to SVE_I.
 856         Wrap the ASRD in an UNSPEC_PRED_X.
 857         (*cond_<sve_int_op><mode>_2): Likewise.  Replace the UNSPEC_PRED_X
 858         predicate with a constant PTRUE, if it isn't already.
 859         (*cond_<sve_int_op><mode>_z): Replace with...
 860         (*cond_<sve_int_op><mode>_any): ...this new pattern.
 861
 862 2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>
 863
 864         * config/aarch64/aarch64-sve.md (*cond_bic<mode>_2): Extend from
 865         SVE_FULL_I to SVE_I.
 866         (*cond_bic<mode>_any): Likewise.
 867
 868 2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>
 869
 870         * config/aarch64/aarch64-sve.md (<su>mul<mode>3_highpart)
 871         (@aarch64_pred_<MUL_HIGHPART:optab><mode>): Extend from SVE_FULL_I
 872         to SVE_I.
 873
 874 2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>
 875
 876         * config/aarch64/aarch64-sve.md (<su>abd<mode>_3): Extend from
 877         SVE_FULL_I to SVE_I.
 878         (*aarch64_cond_<su>abd<mode>_2): Likewise.
 879         (*aarch64_cond_<su>abd<mode>_any): Likewise.
 880         (@aarch64_pred_<su>abd<mode>): Likewise.  Use UNSPEC_PRED_X
 881         for the max and min but not for the minus.
 882         (*aarch64_cond_<su>abd<mode>_3): New pattern.
 883
 884 2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>
 885
 886         * config/aarch64/iterators.md (SVE_24I): New iterator.
 887         * config/aarch64/aarch64-sve.md (*aarch64_adr<mode>_shift): Extend from
 888         SVE_FULL_SDI to SVE_24I.  Use containers rather than elements.
 889
 890 2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>
 891
 892         * config/aarch64/aarch64-sve.md (@cond_<SVE_INT_BINARY:optab><mode>)
 893         (*cond_<SVE_INT_BINARY:optab><mode>_2): Extend from SVE_FULL_I
 894         to SVE_I.
 895         (*cond_<SVE_INT_BINARY:optab><mode>_3): Likewise.
 896         (*cond_<SVE_INT_BINARY:optab><mode>_any): Likewise.
 897         (*cond_<SVE_INT_BINARY:optab><mode>_2_const): Likewise.
 898         (*cond_<SVE_INT_BINARY:optab><mode>_any_const): Likewise.
 899
 900 2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>
 901
 902         * config/aarch64/aarch64-sve.md (<SVE_INT_BINARY_IMM:optab><mode>3)
 903         (@aarch64_pred_<SVE_INT_BINARY_IMM:optab><mode>)
 904         (*post_ra_<SVE_INT_BINARY_IMM:optab><mode>3): Extend from SVE_FULL_I
 905         to SVE_I.
 906
 907 2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>
 908
 909         * config/aarch64/aarch64-sve.md (<ASHIFT:optab><mode>3)
 910         (v<ASHIFT:optab><mode>3, @aarch64_pred_<optab><mode>)
 911         (*post_ra_v<ASHIFT:optab><mode>3): Extend from SVE_FULL_I to SVE_I.
 912
 913 2021-01-11  Martin Liska  <mliska@suse.cz>
 914
 915         PR jit/98615
 916         * symtab-clones.h (clone_info::release): Release
 917         symtab::m_clones with ggc_delete as it's a GGC memory.
 918
 919 2021-01-11  Matthias Klose  <doko@ubuntu.com>
 920
 921         * Makefile.in (LINK_PROGRESS): Show the link target.
 922
 923 2021-01-11  Richard Biener  <rguenther@suse.de>
 924
 925         PR tree-optimization/91403
 926         * tree-vect-data-refs.c (vect_analyze_group_access_1): Cap
 927         single-element interleaving group size at 4096 elements.
 928
 929 2021-01-11  Richard Biener  <rguenther@suse.de>
 930
 931         PR tree-optimization/98526
 932         * tree-vect-loop.c (vect_model_reduction_cost): Remove costing
 933         of the actual reduction op for the regular case.
 934         (vectorizable_reduction): Cost the stmts
 935         vect_transform_reduction produces here.
 936
 937 2021-01-11  Andreas Krebbel  <krebbel@linux.ibm.com>
 938
 939         * tree-ssa-forwprop.c (simplify_vector_constructor): For
 940         big-endian, use UNPACK[_FLOAT]_HI.
 941
 942 2021-01-11  Tamar Christina  <tamar.christina@arm.com>
 943
 944         * tree-vect-slp-patterns.c (class complex_pattern,
 945         class complex_add_pattern): Add parameters to matches.
 946         (complex_add_pattern::build): Free memory.
 947         (complex_add_pattern::matches): Move validation end of match.
 948         (complex_add_pattern::recognize): Likewise.
 949
 950 2021-01-11  Tamar Christina  <tamar.christina@arm.com>
 951
 952         * tree-vect-slp-patterns.c (linear_loads_p): Fix externals.
 953
 954 2021-01-11  Tamar Christina  <tamar.christina@arm.com>
 955
 956         * tree-vect-slp-patterns.c (is_linear_load_p): Fix ambiguity.
 957
 958 2021-01-11  Jakub Jelinek  <jakub@redhat.com>
 959
 960         PR tree-optimization/95867
 961         * tree-ssa-math-opts.h: New header.
 962         * tree-ssa-math-opts.c: Include tree-ssa-math-opts.h.
 963         (powi_as_mults): No longer static.  Use build_one_cst instead of
 964         build_real.  Formatting fix.
 965         * tree-ssa-reassoc.c: Include tree-ssa-math-opts.h.
 966         (attempt_builtin_powi): Handle multiplication reassociation without
 967         powi_fndecl using powi_as_mults.
 968         (reassociate_bb): For integral types don't require
 969         -funsafe-math-optimizations to call attempt_builtin_powi.
 970
 971 2021-01-11  Jakub Jelinek  <jakub@redhat.com>
 972
 973         PR tree-optimization/95852
 974         * tree-ssa-math-opts.c (maybe_optimize_guarding_check): Change
 975         mul_stmts parameter type to vec<gimple *> &.  Before cond_stmt
 976         allow in the bb any of the stmts in that vector, div_stmt and
 977         up to 3 cast stmts.
 978         (arith_cast_equal_p): New function.
 979         (arith_overflow_check_p): Add cast_stmt argument, handle signed
 980         multiply overflow checks.
 981         (match_arith_overflow): Adjust caller.  Handle signed multiply
 982         overflow checks.
 983
 984 2021-01-11  Jakub Jelinek  <jakub@redhat.com>
 985
 986         PR tree-optimization/95852
 987         * tree-ssa-math-opts.c (maybe_optimize_guarding_check): New function.
 988         (uaddsub_overflow_check_p): Renamed to ...
 989         (arith_overflow_check_p): ... this.  Handle also multiplication
 990         with overflow check.
 991         (match_uaddsub_overflow): Renamed to ...
 992         (match_arith_overflow): ... this.  Add cfg_changed argument.  Handle
 993         also multiplication with overflow check.  Adjust function comment.
 994         (math_opts_dom_walker::after_dom_children): Adjust callers.  Call
 995         match_arith_overflow also for MULT_EXPR.
 996
 997 2021-01-11  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 998
 999         * config/aarch64/arm_neon.h (vmovl_s8): Reimplement using
1000         __builtin_convertvector.
1001         (vmovl_s16): Likewise.
1002         (vmovl_s32): Likewise.
1003         (vmovl_u8): Likewise.
1004         (vmovl_u16): Likewise.
1005         (vmovl_u32): Likewise.
1006         (vmovn_s16): Likewise.
1007         (vmovn_s32): Likewise.
1008         (vmovn_s64): Likewise.
1009         (vmovn_u16): Likewise.
1010         (vmovn_u32): Likewise.
1011         (vmovn_u64): Likewise.
1012
1013 2021-01-11  Martin Liska  <mliska@suse.cz>
1014
1015         * gimple-if-to-switch.cc (struct condition_info): Use auto_var.
1016         (if_chain::is_beneficial): Delete clusters
1017         (find_conditions): Make second argument of conditions_in_bbs a
1018         pointer so that we control over it's lifetime.
1019         (pass_if_to_switch::execute): Delete them.
1020
1021 2021-01-11  Kewen Lin  <linkw@linux.ibm.com>
1022
1023         * ira.c (move_unallocated_pseudos): Check other_reg and skip if
1024         it isn't set.
1025
1026 2021-01-09  Maciej W. Rozycki  <macro@linux-mips.org>
1027
1028         * config/vax/vax.md (cc): Remove mode attribute.
1029         (subst_<cc>, subst_f<cc>): Rename to...
1030         (subst_<mode>, subst_f<VAXccnz:mode>): ... these respectively.
1031         (*cbranch<VAXint:mode>4_<VAXcc:mode>): Update for `cc' removal.
1032         (*cbranch<VAXfp:mode>4_<VAXccnz:mode>): Likewise.
1033         (*branch_<mode>, *branch_<mode>_reversed): Likewise.
1034
1035 2021-01-09  Maciej W. Rozycki  <macro@linux-mips.org>
1036
1037         * config/vax/vax.md (subst_f<cc>): Add mode to operands and
1038         `const_double_zero'.
1039
1040 2021-01-09  Maciej W. Rozycki  <macro@linux-mips.org>
1041
1042         * config/pdp11/pdp11.md (PDPfp): New mode iterator.
1043         (fcc_cc, fcc_ccnz): Use it.  Add mode to `const_double_zero' and
1044         operands.
1045
1046 2021-01-09  Maciej W. Rozycki  <macro@linux-mips.org>
1047
1048         * genemit.c (gen_exp) <CONST_DOUBLE>: Handle `const_double_zero'
1049         rtx.
1050         * read-rtl.c (rtx_reader::read_rtx_code): Handle machine mode
1051         with `const_double_zero'.
1052         * doc/rtl.texi (Constant Expression Types): Document it.
1053
1054 2021-01-09  Jakub Jelinek  <jakub@redhat.com>
1055
1056         PR c++/98556
1057         * tree-cfg.c (verify_gimple_assign_binary): Allow lhs of
1058         POINTER_DIFF_EXPR to be any integral type.
1059
1060 2021-01-09  Jakub Jelinek  <jakub@redhat.com>
1061
1062         PR rtl-optimization/98603
1063         * function.c (instantiate_virtual_regs_in_insn): For asm goto
1064         with impossible constraints, drop all SETs, CLOBBERs, drop PARALLEL
1065         if any, set ASM_OPERANDS mode to VOIDmode and change
1066         ASM_OPERANDS_OUTPUT_CONSTRAINT and ASM_OPERANDS_OUTPUT_IDX.
1067
1068 2021-01-09  Alexandre Oliva  <oliva@gnu.org>
1069
1070         PR debug/97714
1071         * final.c (notice_source_line): Narrow down the condition to
1072         skip a line-0 marker.
1073
1074 2021-01-08  Sergei Trofimovich  <siarheit@google.com>
1075
1076         * ipa-modref.c (merge_call_side_effects): Fix
1077         linebreak split by reordering two print calls.
1078
1079 2021-01-08  Ilya Leoshkevich  <iii@linux.ibm.com>
1080
1081         * config/s390/vector.md (*tf_to_fprx2_0): Rename from
1082         "*mov_tf_to_fprx2_0" for consistency, fix constraint.
1083         (*tf_to_fprx2_1): Rename from "*mov_tf_to_fprx2_1" for
1084         consistency, fix constraint.
1085
1086 2021-01-08  Ilya Leoshkevich  <iii@linux.ibm.com>
1087
1088         * config/s390/s390-c.c (s390_def_or_undef_macro): Accept
1089         callables instead of mask values.
1090         (struct target_flag_set_p): New predicate.
1091         (s390_cpu_cpp_builtins_internal): Define or undefine
1092         __LONG_DOUBLE_VX__ macro.
1093
1094 2021-01-08  H.J. Lu  <hjl.tools@gmail.com>
1095
1096         PR target/98482
1097         * config/i386/i386.c (x86_function_profiler): Use R10 and R11
1098         to call mcount in large model with PIC for NO_PROFILE_COUNTERS
1099         targets.
1100
1101 2021-01-08  Richard Biener  <rguenther@suse.de>
1102
1103         * tree-ssa-sccvn.c (pass_fre::execute): Reset the SCEV hash table.
1104
1105 2021-01-08  Richard Biener  <rguenther@suse.de>
1106
1107         * tree-vect-slp.c (scalar_stmts_to_slp_tree_map_t): Fix.
1108         (vect_build_slp_tree): On cache hit release the matched
1109         scalar stmts vector.
1110         * tree-vect-stmts.c (vectorizable_store): Properly free
1111         vec_oprnds before possibly gathering them again.
1112
1113 2021-01-08  Richard Biener  <rguenther@suse.de>
1114
1115         PR tree-optimization/98544
1116         * tree-vect-slp.c (vect_optimize_slp): Always materialize
1117         permutes at a permute node.
1118
1119 2021-01-08  H.J. Lu  <hjl.tools@gmail.com>
1120
1121         PR target/98482
1122         * config/i386/i386.c (x86_function_profiler): Use R10 to call
1123         mcount in large model.  Sorry for large model with PIC.
1124
1125 2021-01-08  Jakub Jelinek  <jakub@redhat.com>
1126
1127         PR target/98585
1128         * config/i386/i386.opt (ix86_cmodel, ix86_incoming_stack_boundary_arg,
1129         ix86_pmode, ix86_preferred_stack_boundary_arg, ix86_regparm,
1130         ix86_veclibabi_type): Remove x_ prefix, use TargetVariable instead of
1131         TargetSave and initialize for variables with enum types.
1132         (mfentry, mstack-protector-guard-reg=, mstack-protector-guard-offset=,
1133         mstack-protector-guard-symbol=): Add Save.
1134         * config/i386/i386-options.c (ix86_function_specific_save,
1135         ix86_function_specific_restore): Don't save or restore x_ix86_cmodel,
1136         x_ix86_incoming_stack_boundary_arg, x_ix86_pmode,
1137         x_ix86_preferred_stack_boundary_arg, x_ix86_regparm,
1138         x_ix86_veclibabi_type.
1139
1140 2021-01-08  Richard Sandiford  <richard.sandiford@arm.com>
1141
1142         * config/aarch64/aarch64-sve.md (*cnot<mode>): Extend from
1143         SVE_FULL_I to SVE_I.
1144         (*cond_cnot<mode>_2, *cond_cnot<mode>_any): Likewise.
1145
1146 2021-01-08  Richard Sandiford  <richard.sandiford@arm.com>
1147
1148         * config/aarch64/aarch64-sve.md (*cond_uxt<mode>_2): Extend from
1149         SVE_FULL_I to SVE_I.
1150         (*cond_uxt<mode>_any): Likewise.
1151
1152 2021-01-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
1153
1154         * config/aarch64/iterators.md (Vwhalf): New iterator.
1155         * config/aarch64/aarch64-simd.md (aarch64_<sur>adalp<mode>_3):
1156         Rename to...
1157         (aarch64_<sur>adalp<mode>): ... This.  Make more
1158         builtin-friendly.
1159         (<sur>sadv16qi): Adjust callsite of the above.
1160         * config/aarch64/aarch64-simd-builtins.def (sadalp, uadalp): New
1161         builtins.
1162         * config/aarch64/arm_neon.h (vpadal_s8): Reimplement using
1163         builtins.
1164         (vpadal_s16): Likewise.
1165         (vpadal_u8): Likewise.
1166         (vpadal_u16): Likewise.
1167         (vpadalq_s8): Likewise.
1168         (vpadalq_s16): Likewise.
1169         (vpadalq_s32): Likewise.
1170         (vpadalq_u8): Likewise.
1171         (vpadalq_u16): Likewise.
1172         (vpadalq_u32): Likewise.
1173
1174 2021-01-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
1175
1176         * config/aarch64/aarch64-simd.md (aarch64_<su>abd<mode>_3):
1177         Rename to...
1178         (aarch64_<su>abd<mode>): ... This.
1179         (<sur>sadv16qi): Adjust callsite of the above.
1180         * config/aarch64/aarch64-simd-builtins.def (sabd, uabd): Define
1181         builtins.
1182         * config/aarch64/arm_neon.h (vabd_s8): Reimplement using
1183         builtin.
1184         (vabd_s16): Likewise.
1185         (vabd_s32): Likewise.
1186         (vabd_u8): Likewise.
1187         (vabd_u16): Likewise.
1188         (vabd_u32): Likewise.
1189         (vabdq_s8): Likewise.
1190         (vabdq_s16): Likewise.
1191         (vabdq_s32): Likewise.
1192         (vabdq_u8): Likewise.
1193         (vabdq_u16): Likewise.
1194         (vabdq_u32): Likewise.
1195
1196 2021-01-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
1197
1198         * config/aarch64/aarch64-simd-builtins.def (saba, uaba): Define
1199         builtins.
1200         * config/aarch64/arm_neon.h (vaba_s8): Implement using builtin.
1201         (vaba_s16): Likewise.
1202         (vaba_s32): Likewise.
1203         (vaba_u8): Likewise.
1204         (vaba_u16): Likewise.
1205         (vaba_u32): Likewise.
1206         (vabaq_s8): Likewise.
1207         (vabaq_s16): Likewise.
1208         (vabaq_s32): Likewise.
1209         (vabaq_u8): Likewise.
1210         (vabaq_u16): Likewise.
1211         (vabaq_u32): Likewise.
1212
1213 2021-01-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
1214
1215         * config/aarch64/aarch64-simd.md (aba<mode>_3): Rename to...
1216         (aarch64_<su>aba<mode>): ... This.  Handle uaba as well.
1217         Change RTL pattern to match.
1218
1219 2021-01-08  Kito Cheng  <kito.cheng@sifive.com>
1220
1221         * common/config/riscv/riscv-common.c (riscv_current_subset_list): New.
1222         * config/riscv/riscv-c.c (riscv-subset.h): New.
1223         (INCLUDE_STRING): Define.
1224         (riscv_cpu_cpp_builtins): Add new style architecture extension
1225         test macros.
1226         * config/riscv/riscv-subset.h (riscv_subset_list::begin): New.
1227         (riscv_subset_list::end): New.
1228         (riscv_current_subset_list): New.
1229
1230 2021-01-08  Kito Cheng  <kito.cheng@sifive.com>
1231
1232         * common/config/riscv/riscv-common.c (RISCV_DONT_CARE_VERSION):
1233         Move to riscv-subset.h.
1234         (struct riscv_subset_t): Ditto.
1235         (class riscv_subset_list): Ditto.
1236         * config/riscv/riscv-subset.h (RISCV_DONT_CARE_VERSION): Move
1237         from riscv-common.c.
1238         (struct riscv_subset_t): Ditto.
1239         (class riscv_subset_list): Ditto.
1240         * config/riscv/t-riscv ($(common_out_file)): Add file
1241         dependency.
1242
1243 2021-01-07  Jakub Jelinek  <jakub@redhat.com>
1244
1245         PR target/98567
1246         * config/i386/i386.md (*bmi_blsi_<mode>_cmp, *bmi_blsi_<mode>_ccno):
1247         New define_insn patterns.
1248
1249 2021-01-07  Richard Sandiford  <richard.sandiford@arm.com>
1250
1251         * config/aarch64/aarch64-sve.md (@cond_<SVE_INT_UNARY:optab><mode>)
1252         (*cond_<SVE_INT_UNARY:optab><mode>_2): Extend from SVE_FULL_I to SVE_I.
1253         (*cond_<SVE_INT_UNARY:optab><mode>_any): Likewise.
1254
1255 2021-01-07  Richard Sandiford  <richard.sandiford@arm.com>
1256
1257         PR tree-optimization/98560
1258         * internal-fn.def (IFN_VCONDU, IFN_VCONDEQ): Use type vec_cond.
1259         * internal-fn.c (vec_cond_mask_direct): Get the data mode from
1260         argument 1.
1261         (vec_cond_direct): Likewise argument 2.
1262         (vec_condu_direct, vec_condeq_direct): Delete.
1263         (expand_vect_cond_optab_fn): Rename to...
1264         (expand_vec_cond_optab_fn): ...this, replacing old macro.
1265         (expand_vec_condu_optab_fn, expand_vec_condeq_optab_fn): Delete.
1266         (expand_vect_cond_mask_optab_fn): Rename to...
1267         (expand_vec_cond_mask_optab_fn): ...this, replacing old macro.
1268         (direct_vec_cond_mask_optab_supported_p): Treat the optab as a
1269         convert optab.
1270         (direct_vec_cond_optab_supported_p): Likewise.
1271         (direct_vec_condu_optab_supported_p): Delete.
1272         (direct_vec_condeq_optab_supported_p): Delete.
1273         * gimple-isel.cc: Include internal-fn.h.
1274         (gimple_expand_vec_cond_expr): Check that IFN_VCONDEQ is supported
1275         before using it.
1276
1277 2021-01-07  Richard Sandiford  <richard.sandiford@arm.com>
1278
1279         PR tree-optimization/98560
1280         * gimple-isel.cc (gimple_expand_vec_cond_expr): If we fail to use
1281         IFN_VCOND{,U,EQ}, fall back on IFN_VCOND_MASK.
1282
1283 2021-01-07  Uroš Bizjak  <ubizjak@gmail.com>
1284
1285         * config/i386/i386.md (insn): Merge from plusminus_insn, shift_insn,
1286         rotate_insn and optab code attributes.
1287         Update all uses to merged code attribute.
1288         * config/i386/sse.md: Update all uses to merged code attribute.
1289         * config/i386/mmx.md: Update all uses to merged code attribute.
1290
1291 2021-01-07  Jakub Jelinek  <jakub@redhat.com>
1292
1293         PR tree-optimization/98568
1294         * gimple-ssa-store-merging.c (bswap_view_convert): New function.
1295         (bswap_replace): Use it.
1296
1297 2021-01-06  Vladimir N. Makarov  <vmakarov@redhat.com>
1298
1299         PR rtl-optimization/97978
1300         * lra-int.h (lra_hard_reg_split_p): New external.
1301         * lra.c (lra_hard_reg_split_p): New global.
1302         (lra): Set up lra_hard_reg_split_p after splitting a hard reg.
1303         * lra-assigns.c (lra_assign): Don't check allocation correctness
1304         after hard reg splitting.
1305
1306 2021-01-06  Martin Sebor  <msebor@redhat.com>
1307
1308         PR c++/98305
1309         * builtins.c (new_delete_mismatch_p): New overload.
1310         (new_delete_mismatch_p (tree, tree)): Call it.
1311
1312 2021-01-06  Alexandre Oliva  <oliva@adacore.com>
1313
1314         * Makefile.in (T_GLIMITS_H): New.
1315         (stmp-int-hdrs): Depend on it, use it.
1316         * config/t-vxworks (T_GLIMITS_H): Override it.
1317         (vxw-glimits.h): New.
1318
1319 2021-01-06  Richard Biener  <rguenther@suse.de>
1320
1321         PR tree-optimization/98513
1322         * value-range.cc (intersect_ranges): Compare the upper bounds
1323         for the expected relation.
1324
1325 2021-01-06  Gerald Pfeifer  <gerald@pfeifer.com>
1326
1327         Revert:
1328         2020-12-28  Gerald Pfeifer  <gerald@pfeifer.com>
1329
1330         * doc/standards.texi (HSAIL): Remove section.
1331
1332 2021-01-05  Samuel Thibault  <samuel.thibault@ens-lyon.org>
1333
1334         * configure: Re-generate.
1335
1336 2021-01-05  Jakub Jelinek  <jakub@redhat.com>
1337
1338         * doc/invoke.texi (-std=c++20): Adjust for the publication of
1339         ISO 14882:2020 standard.
1340         * doc/standards.texi: Likewise.
1341
1342 2021-01-05  Jakub Jelinek  <jakub@redhat.com>
1343
1344         PR tree-optimization/94802
1345         * expr.h (maybe_optimize_sub_cmp_0): Declare.
1346         * expr.c: Include tree-pretty-print.h and flags.h.
1347         (maybe_optimize_sub_cmp_0): New function.
1348         (do_store_flag): Use it.
1349         * cfgexpand.c (expand_gimple_cond): Likewise.
1350
1351 2021-01-05  Richard Sandiford  <richard.sandiford@arm.com>
1352
1353         * mux-utils.h (pointer_mux::m_ptr): Tweak description of contents.
1354         * rtlanal.c (simple_regno_set): Tweak description to clarify the
1355         RMW condition.
1356
1357 2021-01-05  Richard Biener  <rguenther@suse.de>
1358
1359         PR tree-optimization/98516
1360         * tree-vect-slp.c (vect_optimize_slp): Permute the incoming
1361         lanes when materializing on a VEC_PERM node.
1362         (vectorizable_slp_permutation): Dump the permute properly.
1363
1364 2021-01-05  Richard Biener  <rguenther@suse.de>
1365
1366         * tree-vect-slp.c (vect_slp_region): Move debug counter
1367         to cover individual subgraphs.
1368
1369 2021-01-05  Richard Biener  <rguenther@suse.de>
1370
1371         PR tree-optimization/98428
1372         * tree-vect-slp.c (vect_build_slp_tree_1): Properly reject
1373         vector lane extracts for loop vectorization.
1374
1375 2021-01-05  Jakub Jelinek  <jakub@redhat.com>
1376
1377         PR tree-optimization/98514
1378         * tree-ssa-reassoc.c (bb_rank): Change type from long * to
1379         int64_t *.
1380         (operand_rank): Change type from hash_map<tree, long> to
1381         hash_map<tree, int64_t>.
1382         (phi_rank): Change return type from long to int64_t.
1383         (loop_carried_phi): Change block_rank variable type from long to
1384         int64_t.
1385         (propagate_rank): Change return type, rank parameter type and
1386         op_rank variable type from long to int64_t.
1387         (find_operand_rank): Change return type from long to int64_t
1388         and change slot variable type from long * to int64_t *.
1389         (insert_operand_rank): Change rank parameter type from long to
1390         int64_t.
1391         (get_rank): Change return type and rank variable type from long to
1392         int64_t.  Use PRId64 instead of ld to print the rank.
1393         (init_reassoc): Change rank variable type from long to int64_t
1394         and adjust correspondingly bb_rank and operand_rank initialization.
1395
1396 2021-01-05  Jakub Jelinek  <jakub@redhat.com>
1397
1398         PR tree-optimization/96928
1399         * tree-ssa-phiopt.c (xor_replacement): New function.
1400         (tree_ssa_phiopt_worker): Call it.
1401
1402 2021-01-05  Jakub Jelinek  <jakub@redhat.com>
1403
1404         PR tree-optimization/96930
1405         * match.pd ((A / (1 << B)) -> (A >> B)): If A is extended
1406         from narrower value which has the same type as 1 << B, perform
1407         the right shift on the narrower value followed by extension.
1408
1409 2021-01-05  Jakub Jelinek  <jakub@redhat.com>
1410
1411         PR tree-optimization/96239
1412         * gimple-ssa-store-merging.c (maybe_optimize_vector_constructor): New
1413         function.
1414         (get_status_for_store_merging): Don't return BB_INVALID for blocks
1415         with potential bswap optimizable CONSTRUCTORs.
1416         (pass_store_merging::execute): Optimize vector CONSTRUCTORs with bswap
1417         if possible.
1418
1419 2021-01-05  Richard Biener  <rguenther@suse.de>
1420
1421         PR tree-optimization/98381
1422         * tree.c (vector_element_bits): Properly compute bool vector
1423         element size.
1424         * tree-vect-loop.c (vectorizable_live_operation): Properly
1425         compute the last lane bit offset.
1426
1427 2021-01-05  Uroš Bizjak  <ubizjak@gmail.com>
1428
1429         PR target/98522
1430         * config/i386/sse.md (sse_cvtps2pi): Redefine as define_insn_and_split.
1431         Clear the top 64 bytes of the input XMM register.
1432         (sse_cvttps2pi): Ditto.
1433
1434 2021-01-05  Uroš Bizjak  <ubizjak@gmail.com>
1435
1436         PR target/98521
1437         * config/i386/xopintrin.h (_mm256_cmov_si256): New.
1438
1439 2021-01-05  H.J. Lu  <hjl.tools@gmail.com>
1440
1441         PR target/98495
1442         * config/i386/xmmintrin.h (_mm_extract_pi16): Cast to unsigned
1443         short first.
1444
1445 2021-01-05  Claudiu Zissulescu  <claziss@synopsys.com>
1446
1447         * config/arc/arc.md (maddsidi4_split): Use ACC_REG_FIRST.
1448         (umaddsidi4_split): Likewise.
1449
1450 2021-01-05  liuhongt  <hongtao.liu@intel.com>
1451
1452         PR target/98461
1453         * config/i386/sse.md (*sse2_pmovskb_zexthisi): New
1454         define_insn_and_split for zero_extend of subreg HI of pmovskb
1455         result.
1456         (*sse2_pmovskb_zexthisi): Add new combine splitters for
1457         zero_extend of not of subreg HI of pmovskb result.
1458
1459 2021-01-05  Richard Sandiford  <richard.sandiford@arm.com>
1460
1461         PR target/97269
1462         * explow.c (convert_memory_address_addr_space_1): Handle UNSPECs
1463         nested in CONSTs.
1464         * config/aarch64/aarch64.c (aarch64_expand_mov_immediate): Use
1465         convert_memory_address to convert symbolic immediates to ptr_mode
1466         before forcing them to memory.
1467
1468 2021-01-05  Richard Sandiford  <richard.sandiford@arm.com>
1469
1470         PR rtl-optimization/97144
1471         * recog.c (constrain_operands): Initialize matching_operand
1472         for each alternative, rather than only doing it once.
1473
1474 2021-01-05  Richard Sandiford  <richard.sandiford@arm.com>
1475
1476         PR rtl-optimization/98403
1477         * rtl-ssa/changes.cc (function_info::finalize_new_accesses): Explain
1478         why we don't remove call clobbers.
1479         (function_info::apply_changes_to_insn): Don't attempt to add
1480         call clobbers here.
1481
1482 2021-01-05  Richard Sandiford  <richard.sandiford@arm.com>
1483
1484         PR tree-optimization/98371
1485         * tree-vect-loop.c (vect_reanalyze_as_main_loop): New function.
1486         (vect_analyze_loop): If an epilogue loop appears to be cheaper
1487         than the main loop, re-analyze it as a main loop before adopting
1488         it as a main loop.
1489
1490 2021-01-05  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1491
1492         PR c++/98316
1493         * configure.ac (NETLIBS): Determine using AX_LIB_SOCKET_NSL.
1494         * aclocal.m4, configure: Regenerate.
1495         * Makefile.in (NETLIBS): Define.
1496         (BACKEND): Remove $(CODYLIB).
1497
1498 2021-01-05  Jakub Jelinek  <jakub@redhat.com>
1499
1500         PR rtl-optimization/98334
1501         * simplify-rtx.c (simplify_context::simplify_binary_operation_1):
1502         Optimize (X - 1) * Y + Y to X * Y or (X + 1) * Y - Y to X * Y.
1503
1504 2021-01-05  Bernd Edlinger  <bernd.edlinger@hotmail.de>
1505
1506         * tree-inline.c (expand_call_inline): Restore input_location.
1507         Return result from recursive call.
1508
1509 2021-01-04  Richard Sandiford  <richard.sandiford@arm.com>
1510
1511         PR tree-optimization/95401
1512         * config/aarch64/aarch64-sve-builtins.cc
1513         (gimple_folder::load_store_cookie): Use bits rather than bytes
1514         for the alignment argument to IFN_MASK_LOAD and IFN_MASK_STORE.
1515         * gimple-fold.c (gimple_fold_mask_load_store_mem_ref): Likewise.
1516         * tree-vect-stmts.c (vectorizable_store): Likewise.
1517         (vectorizable_load): Likewise.
1518
1519 2021-01-04  Richard Biener  <rguenther@suse.de>
1520
1521         PR tree-optimization/98308
1522         * tree-vect-stmts.c (vectorizable_load): Set invariant mask
1523         SLP vectype.
1524
1525 2021-01-04  Jakub Jelinek  <jakub@redhat.com>
1526
1527         PR tree-optimization/95771
1528         * tree-ssa-loop-niter.c (number_of_iterations_popcount): Handle types
1529         with precision smaller than int's precision and types with precision
1530         twice as large as long long.  Formatting fixes.
1531
1532 2021-01-04  Richard Biener  <rguenther@suse.de>
1533
1534         PR tree-optimization/98464
1535         * tree-ssa-sccvn.c (vn_valueize_for_srt): Rename from ...
1536         (vn_valueize_wrapper): ... this.  Temporarily adjust vn_context_bb.
1537         (process_bb): Adjust.
1538
1539 2021-01-04  Matthew Malcomson  <matthew.malcomson@arm.com>
1540
1541         PR other/98437
1542         * doc/invoke.texi (-fsanitize=address): Fix wording describing
1543         clash with -fsanitize=hwaddress.
1544
1545 2021-01-04  Richard Biener  <rguenther@suse.de>
1546
1547         PR tree-optimization/98282
1548         * tree-ssa-sccvn.c (vn_get_stmt_kind): Classify tcc_reference on
1549         invariants as VN_NARY.
1550
1551 2021-01-04  Richard Sandiford  <richard.sandiford@arm.com>
1552
1553         PR target/89057
1554         * config/aarch64/aarch64-simd.md (aarch64_combine<mode>): Accept
1555         aarch64_simd_reg_or_zero for operand 2.  Use the combinez patterns
1556         to handle zero operands.
1557
1558 2021-01-04  Richard Sandiford  <richard.sandiford@arm.com>
1559
1560         * config/aarch64/aarch64.c (offset_6bit_signed_scaled_p): New function.
1561         (offset_6bit_unsigned_scaled_p): Fix typo in comment.
1562         (aarch64_sve_prefetch_operand_p): Accept MUL VLs in the range
1563         [-32, 31].
1564
1565 2021-01-04  Richard Biener  <rguenther@suse.de>
1566
1567         PR tree-optimization/98393
1568         * tree-vect-slp.c (vect_build_slp_tree): Properly zero matches
1569         when hitting the limit.
1570
1571 2021-01-04  Richard Biener  <rguenther@suse.de>
1572
1573         PR tree-optimization/98291
1574         * tree-vect-loop.c (vectorizable_reduction): Bypass
1575         associativity check for SLP reductions with VF 1.
1576
1577 2021-01-04  Jakub Jelinek  <jakub@redhat.com>
1578
1579         PR tree-optimization/96782
1580         * match.pd (x == ~x -> false, x != ~x -> true): New simplifications.
1581
1582 2021-01-04  Bernd Edlinger  <bernd.edlinger@hotmail.de>
1583
1584         * collect-utils.c (collect_execute): Check dumppfx.
1585         * collect2.c (maybe_run_lto_and_relink, do_link): Pass atsuffix
1586         to collect_execute.
1587         (do_link): Add new parameter atsuffix.
1588         (main): Handle -dumpdir option.  Skip one argument for
1589         -o, -isystem and -B options.
1590         * gcc.c (make_at_file): New helper function.
1591         (close_at_file): Use it.
1592
1593 2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>
1594
1595         * config/darwin.h (MIN_LD64_NO_COAL_SECTS): Adjust.
1596         Amend handling for LD64_VERSION fallback defaults.
1597
1598 2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>
1599
1600         * config.gcc: Compute default version information
1601         from the configured target.  Likewise defaults for
1602         ld64.
1603         * config/darwin10.h: Removed.
1604         * config/darwin12.h: Removed.
1605         * config/darwin9.h: Removed.
1606         * config/rs6000/darwin8.h: Removed.
1607
1608 2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>
1609
1610         * config/darwin9.h (ASM_OUTPUT_ALIGNED_COMMON): Delete.
1611
1612 2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>
1613
1614         * config/darwin9.h (STACK_CHECK_STATIC_BUILTIN): Move from here..
1615         * config/darwin.h (STACK_CHECK_STATIC_BUILTIN): .. to here.
1616
1617 2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>
1618
1619         * config/darwin10.h (LINK_GCC_C_SEQUENCE_SPEC): Move from
1620         here...
1621         * config/darwin.h (LINK_GCC_C_SEQUENCE_SPEC): ... to here.
1622
1623 2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>
1624
1625         * config/darwin10.h (LINK_GCC_C_SEQUENCE_SPEC): Move the spec
1626         for the Darwin10 unwinder stub from here ...
1627         * config/darwin.h (LINK_COMMAND_SPEC_A): ... to here.
1628
1629 2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>
1630
1631         * config/darwin.h (DSYMUTIL_SPEC): Default to DWARF
1632         (ASM_DEBUG_SPEC):Only define if the assembler supports
1633         stabs.
1634         (PREFERRED_DEBUGGING_TYPE): Default to DWARF.
1635         (DARWIN_PREFER_DWARF): Define.
1636         * config/darwin9.h (PREFERRED_DEBUGGING_TYPE): Remove.
1637         (DARWIN_PREFER_DWARF): Likewise
1638         (DSYMUTIL_SPEC): Likewise.
1639         (COLLECT_RUN_DSYMUTIL): Likewise.
1640         (ASM_DEBUG_SPEC): Likewise.
1641         (ASM_DEBUG_OPTION_SPEC): Likewise.
1642
1643 2021-01-02  Jan Hubicka  <jh@suse.cz>
1644
1645         * cfg.c (free_block): ggc_free bb.
1646
1647 2021-01-01  Jakub Jelinek  <jakub@redhat.com>
1648
1649         * gcc.c (process_command): Update copyright notice dates.
1650         * gcov-dump.c (print_version): Ditto.
1651         * gcov.c (print_version): Ditto.
1652         * gcov-tool.c (print_version): Ditto.
1653         * gengtype.c (create_file): Ditto.
1654         * doc/cpp.texi: Bump @copying's copyright year.
1655         * doc/cppinternals.texi: Ditto.
1656         * doc/gcc.texi: Ditto.
1657         * doc/gccint.texi: Ditto.
1658         * doc/gcov.texi: Ditto.
1659         * doc/install.texi: Ditto.
1660         * doc/invoke.texi: Ditto.
1661
1662 2021-01-01  Jakub Jelinek  <jakub@redhat.com>
1663
1664         * ChangeLog-2020: Rotate ChangeLog.  New file.
1665
1666 \f
1667 Copyright (C) 2021 Free Software Foundation, Inc.
1668
1669 Copying and distribution of this file, with or without modification,
1670 are permitted in any medium without royalty provided the copyright
1671 notice and this notice are preserved.