gcc/ChangeLog

   1 2021-01-21  Vladimir N. Makarov  <vmakarov@redhat.com>
   2
   3         PR rtl-optimization/98777
   4         * lra-int.h (lra_pmode_pseudo): New extern.
   5         * lra.c (lra_pmode_pseudo): New global.
   6         (lra): Set it up.
   7         * lra-eliminations.c (eliminate_regs_in_insn): Use it.
   8
   9 2021-01-21  Ilya Leoshkevich  <iii@linux.ibm.com>
  10
  11         * fwprop.c (fwprop_propagation::classify_result): Allow
  12         (subreg (mem)) simplifications.
  13
  14 2021-01-21  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
  15
  16         * config/aarch64/aarch64-simd.md (aarch64_sqdml<SBINQOPS:as>l<mode>):
  17         Split into...
  18         (aarch64_sqdmlal<mode>): ... This...
  19         (aarch64_sqdmlsl<mode>): ... And this.
  20         (aarch64_sqdml<SBINQOPS:as>l_lane<mode>): Split into...
  21         (aarch64_sqdmlal_lane<mode>): ... This...
  22         (aarch64_sqdmlsl_lane<mode>): ... And this.
  23         (aarch64_sqdml<SBINQOPS:as>l_laneq<mode>): Split into...
  24         (aarch64_sqdmlsl_laneq<mode>): ... This...
  25         (aarch64_sqdmlal_laneq<mode>):  ... And this.
  26         (aarch64_sqdml<SBINQOPS:as>l_n<mode>): Split into...
  27         (aarch64_sqdmlsl_n<mode>): ... This...
  28         (aarch64_sqdmlal_n<mode>): ... And this.
  29         (aarch64_sqdml<SBINQOPS:as>l2<mode>_internal): Split into...
  30         (aarch64_sqdmlal2<mode>_internal): ... This...
  31         (aarch64_sqdmlsl2<mode>_internal): ... And this.
  32
  33 2021-01-21  Christophe Lyon  <christophe.lyon@linaro.org>
  34
  35         * config/arm/arm_mve.h (__arm_vcmpneq_s8): Fix return type.
  36
  37 2021-01-21  Andrea Corallo  <andrea.corallo@arm.com>
  38
  39         PR target/96372
  40         * doc/sourcebuild.texi (arm_thumb2_no_arm_v8_1_lob): Document.
  41
  42 2021-01-21  liuhongt  <hongtao.liu@intel.com>
  43
  44         PR rtl-optimization/98694
  45         * regcprop.c (copy_value): If SRC had been assigned a mode
  46         narrower than the copy, we can't link DEST into the chain even
  47         they have same hard_regno_nregs(i.e. HImode/SImode in i386
  48         backend).
  49
  50 2021-01-20  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
  51
  52         * config/aarch64/aarch64-simd.md (aarch64_get_lane<mode>):
  53         Convert to define_insn_and_split.  Split into simple move when moving
  54         bottom element.
  55
  56 2021-01-20  Segher Boessenkool  <segher@kernel.crashing.org>
  57
  58         * config/rs6000/rs6000.c (rs6000_emit_le_vsx_store): Change assert.
  59         Adjust comment.  Simplify code.
  60
  61 2021-01-20  Jakub Jelinek  <jakub@redhat.com>
  62
  63         PR debug/98765
  64         * dwarf2out.c (reset_indirect_string): Also reset indirect strings
  65         with DW_FORM_line_strp form.
  66         (prune_unused_types_update_strings): Don't add into debug_str_hash
  67         indirect strings with DW_FORM_line_strp form.
  68         (adjust_name_comp_dir): New function.
  69         (dwarf2out_finish): Call it on CU DIEs after resetting
  70         debug_line_str_hash.
  71
  72 2021-01-20  Vladimir N. Makarov  <vmakarov@redhat.com>
  73
  74         PR rtl-optimization/98722
  75         * lra-eliminations.c (eliminate_regs_in_insn): Check that target
  76         has no 3-op add insn to transform insns containing two pluses.
  77
  78 2021-01-20  Richard Biener  <rguenther@suse.de>
  79
  80         * hwint.h (add_hwi): New function.
  81         (mul_hwi): Likewise.
  82         * tree-data-ref.c (initialize_matrix_A): Properly translate
  83         tree constants and avoid HOST_WIDE_INT_MIN.
  84         (lambda_matrix_row_add): Avoid undefined integer overflow
  85         and return true on such overflow.
  86         (lambda_matrix_right_hermite): Handle overflow from
  87         lambda_matrix_row_add gracefully.  Simplify previous fix.
  88         (analyze_subscript_affine_affine): Likewise.
  89
  90 2021-01-20  Eugene Rozenfeld  <erozen@microsoft.com>
  91
  92         PR tree-optimization/96674
  93         * match.pd: New patterns: x < y || y == XXX_MIN --> x <= y - 1
  94         x >= y && y != XXX_MIN --> x > y - 1
  95
  96 2021-01-20  Richard Sandiford  <richard.sandiford@arm.com>
  97
  98         PR tree-optimization/98535
  99         * tree-vect-slp.c (duplicate_and_interleave): Use quick_grow_cleared.
 100         If the high and low permutes are the same, remove the high permutes
 101         from the working set and only continue with the low ones.
 102
 103 2021-01-20  Jakub Jelinek  <jakub@redhat.com>
 104
 105         PR tree-optimization/98721
 106         * builtins.c (access_ref::inform_access): Don't assume
 107         SSA_NAME_IDENTIFIER must be non-NULL.  Print messages about
 108         object whenever allocfn is NULL, rather than only when DECL_P
 109         is true.  Use %qE instead of %qD for that.  Formatting fixes.
 110
 111 2021-01-20  Richard Biener  <rguenther@suse.de>
 112
 113         PR tree-optimization/98758
 114         * tree-data-ref.c (int_divides_p): Use lambda_int arguments.
 115         (lambda_matrix_right_hermite): Avoid undefinedness with
 116         signed integer abs and multiplication.
 117         (analyze_subscript_affine_affine): Use lambda_int.
 118
 119 2021-01-20  David Malcolm  <dmalcolm@redhat.com>
 120
 121         PR debug/98751
 122         * dwarf2out.c (output_line_info): Rename static variable
 123         "generation", moving it out of the function to...
 124         (output_line_info_generation): New.
 125         (init_sections_and_labels): Likewise, renaming the variable to...
 126         (init_sections_and_labels_generation): New.
 127         (dwarf2out_c_finalize): Reset the new variables.
 128
 129 2021-01-19  Martin Sebor  <msebor@redhat.com>
 130
 131         PR middle-end/98664
 132         * tree-ssa-live.c (remove_unused_scope_block_p): Keep scopes for
 133         all functions, even if they're not declared artificial or inline.
 134         * tree.c (tree_inlined_location): Use macro expansion location
 135         only if scope traversal fails to expose one.
 136
 137 2021-01-19  Richard Sandiford  <richard.sandiford@arm.com>
 138
 139         PR rtl-optimization/92294
 140         * alias.c (compare_base_symbol_refs): Take an extra parameter
 141         and add the distance between two symbols to it.  Enshrine in
 142         comments that -1 means "either 0 or 1, but we can't tell
 143         which at compile time".
 144         (memrefs_conflict_p): Update call accordingly.
 145         (rtx_equal_for_memref_p): Likewise.  Take the distance between symbols
 146         into account.
 147
 148 2021-01-19  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 149
 150         * config/aarch64/aarch64-simd-builtins.def (sqshl, uqshl,
 151         sqrshl, uqrshl, sqadd, uqadd, sqsub, uqsub, suqadd, usqadd, sqmovn,
 152         uqmovn, sqxtn2, uqxtn2, sqabs, sqneg, sqdmlal, sqdmlsl, sqdmlal_lane,
 153         sqdmlsl_lane, sqdmlal_laneq, sqdmlsl_laneq, sqdmlal_n, sqdmlsl_n,
 154         sqdmlal2, sqdmlsl2, sqdmlal2_lane, sqdmlsl2_lane, sqdmlal2_laneq,
 155         sqdmlsl2_laneq, sqdmlal2_n, sqdmlsl2_n, sqdmull, sqdmull_lane,
 156         sqdmull_laneq, sqdmull_n, sqdmull2, sqdmull2_lane, sqdmull2_laneq,
 157         sqdmull2_n, sqdmulh, sqrdmulh, sqdmulh_lane, sqdmulh_laneq,
 158         sqrdmulh_lane, sqrdmulh_laneq, sqshrun_n, sqrshrun_n, sqshrn_n,
 159         uqshrn_n, sqrshrn_n, uqrshrn_n, sqshlu_n, sqshl_n, uqshl_n, sqrdmlah,
 160         sqrdmlsh, sqrdmlah_lane, sqrdmlsh_lane, sqrdmlah_laneq, sqrdmlsh_laneq,
 161         sqmovun): Use NONE flags.
 162
 163 2021-01-19  Richard Biener  <rguenther@suse.de>
 164
 165         PR ipa/98330
 166         * ipa-modref.c (analyze_stmt): Only record a summary for a
 167         direct call.
 168
 169 2021-01-19  Richard Biener  <rguenther@suse.de>
 170
 171         PR middle-end/98638
 172         * tree-ssanames.c (fini_ssanames): Zero SSA_NAME_DEF_STMT.
 173
 174 2021-01-19  Daniel Hellstrom  <daniel@gaisler.com>
 175
 176         * config/sparc/rtemself.h (TARGET_OS_CPP_BUILTINS): Add
 177         built-in define __FIX_LEON3FT_TN0018.
 178
 179 2021-01-19  Richard Biener  <rguenther@suse.de>
 180
 181         PR ipa/97673
 182         * tree-inline.c (tree_function_versioning): Set input_location
 183         to UNKNOWN_LOCATION throughout the function.
 184
 185 2021-01-19  Tobias Burnus  <tobias@codesourcery.com>
 186
 187         PR fortran/98476
 188         * omp-low.c (lower_omp_target): Handle nonpointer is_device_ptr.
 189
 190 2021-01-19  Martin Jambor  <mjambor@suse.cz>
 191
 192         PR ipa/98690
 193         * ipa-sra.c (ssa_name_only_returned_p): New parameter fun.  Check
 194         whether non-call exceptions allow removal of a statement.
 195         (isra_analyze_call): Pass the appropriate function to
 196         ssa_name_only_returned_p.
 197
 198 2021-01-19  Geng Qi  <gengqi@linux.alibaba.com>
 199
 200         * config/riscv/arch-canonicalize (longext_sort): New function for
 201          sorting 'multi-letter'.
 202         * config/riscv/multilib-generator: Adjusting the loop of 'alt' in
 203         'alts'. The 'arch' may not be the first of 'alts'.
 204         (_expand_combination): Add underline for the 'ext' without '*'.
 205         This is because, a single-letter extension can always be treated well
 206         with a '_' prefix, but it cannot be separated out if it is appended
 207         to a multi-letter.
 208
 209 2021-01-18  Vladimir N. Makarov  <vmakarov@redhat.com>
 210
 211         PR target/97847
 212         * ira.c (ira): Skip abnormal critical edge splitting.
 213
 214 2021-01-18  Jakub Jelinek  <jakub@redhat.com>
 215
 216         PR tree-optimization/98727
 217         * tree-ssa-math-opts.c (match_arith_overflow): Fix up computation of
 218         second .MUL_OVERFLOW operand for signed multiplication with overflow
 219         checking if the second operand of multiplication is not constant.
 220
 221 2021-01-18  David Edelsohn  <dje.gcc@gmail.com>
 222
 223         * doc/invoke.texi (-gdwarf): TPF defaults to version 2 and AIX
 224         defaults to version 4.
 225
 226 2021-01-18  David Malcolm  <dmalcolm@redhat.com>
 227
 228         * attribs.h (fndecl_dealloc_argno): New decl.
 229         * builtins.c (call_dealloc_argno): Split out second half of
 230         function into...
 231         (fndecl_dealloc_argno): New.
 232         * doc/extend.texi (Common Function Attributes): Document the
 233         interaction between the analyzer and the malloc attribute.
 234         * doc/invoke.texi (Static Analyzer Options): Likewise.
 235
 236 2021-01-17  David Edelsohn  <dje.gcc@gmail.com>
 237
 238         * config/rs6000/aix71.h (SUBTARGET_OVERRIDE_OPTIONS): Override
 239         dwarf_version to 4.
 240         * config/rs6000/aix72.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
 241
 242 2021-01-17  Martin Jambor  <mjambor@suse.cz>
 243
 244         PR ipa/98222
 245         * cgraph.c (clone_of_p): Check also former_clone_of as we climb
 246         the clone tree.
 247
 248 2021-01-17  Mark Wielaard  <mark@klomp.org>
 249
 250         * common.opt (gdwarf-): Init(5).
 251         * doc/invoke.texi (-gdwarf): Document default to 5.
 252
 253 2021-01-16  Kwok Cheung Yeung  <kcy@codesourcery.com>
 254
 255         * builtin-types.def
 256         (BT_FN_VOID_OMPFN_PTR_OMPCPYFN_LONG_LONG_BOOL_UINT_PTR_INT): Rename
 257         to...
 258         (BT_FN_VOID_OMPFN_PTR_OMPCPYFN_LONG_LONG_BOOL_UINT_PTR_INT_PTR):
 259         ...this.  Add extra argument.
 260         * gimplify.c (omp_default_clause): Ensure that event handle is
 261         firstprivate in a task region.
 262         (gimplify_scan_omp_clauses): Handle OMP_CLAUSE_DETACH.
 263         (gimplify_adjust_omp_clauses): Likewise.
 264         * omp-builtins.def (BUILT_IN_GOMP_TASK): Change function type to
 265         BT_FN_VOID_OMPFN_PTR_OMPCPYFN_LONG_LONG_BOOL_UINT_PTR_INT_PTR.
 266         * omp-expand.c (expand_task_call): Add GOMP_TASK_FLAG_DETACH to flags
 267         if detach clause specified.  Add detach argument when generating
 268         call to GOMP_task.
 269         * omp-low.c (scan_sharing_clauses): Setup data environment for detach
 270         clause.
 271         (finish_taskreg_scan): Move field for variable containing the event
 272         handle to the front of the struct.
 273         * tree-core.h (enum omp_clause_code): Add OMP_CLAUSE_DETACH.  Fix
 274         ordering.
 275         * tree-nested.c (convert_nonlocal_omp_clauses): Handle
 276         OMP_CLAUSE_DETACH clause.
 277         (convert_local_omp_clauses): Handle OMP_CLAUSE_DETACH clause.
 278         * tree-pretty-print.c (dump_omp_clause): Handle OMP_CLAUSE_DETACH.
 279         * tree.c (omp_clause_num_ops): Add entry for OMP_CLAUSE_DETACH.
 280         Fix ordering.
 281         (omp_clause_code_name): Add entry for OMP_CLAUSE_DETACH.  Fix
 282         ordering.
 283         (walk_tree_1): Handle OMP_CLAUSE_DETACH.
 284
 285 2021-01-16  Sebastian Huber  <sebastian.huber@embedded-brains.de>
 286
 287         * config/nios2/t-rtems: Reset all MULTILIB_* variables.  Shorten
 288         multilib directory names.  Use MULTILIB_REQUIRED instead of
 289         MULTILIB_EXCEPTIONS.  Add -mhw-mul -mhw-mulx -mhw-div
 290         -mcustom-fpu-cfg=fph2 multilib.
 291
 292 2021-01-16  Sebastian Huber  <sebastian.huber@embedded-brains.de>
 293
 294         * config/nios2/nios2.c (NIOS2_FPU_CONFIG_NUM): Adjust value.
 295         (nios2_init_fpu_configs): Provide register values for new
 296         -mcustom-fpu-cfg=fph2 option variant.
 297         * doc/invoke.texi (-mcustom-fpu-cfg=fph2): Document new option
 298         variant.
 299
 300 2021-01-16  Sebastian Huber  <sebastian.huber@embedded-brains.de>
 301
 302         * config/nios2/nios2.c (nios2_custom_check_insns): Remove
 303         custom instruction warnings.
 304
 305 2021-01-16  Jakub Jelinek  <jakub@redhat.com>
 306
 307         PR tree-optimization/96669
 308         * match.pd ((CST << x) & 1 -> x == 0): New simplification.
 309
 310 2021-01-16  Jakub Jelinek  <jakub@redhat.com>
 311
 312         PR tree-optimization/96271
 313         * passes.def: Pass false argument to first two pass_cd_dce
 314         instances and true to last instance.  Add comment that
 315         last instance rewrites no longer addressed locals.
 316         * tree-ssa-dce.c (pass_cd_dce): Add update_address_taken_p member and
 317         initialize it.
 318         (pass_cd_dce::set_pass_param): New method.
 319         (pass_cd_dce::execute): Return TODO_update_address_taken from
 320         last cd_dce instance.
 321
 322 2021-01-15  Carl Love  <cel@us.ibm.com>
 323
 324         * config/rs6000/altivec.h (vec_mulh, vec_div, vec_dive, vec_mod):
 325         New defines.
 326         * config/rs6000/altivec.md (VIlong): Move define to file vsx.md.
 327         * config/rs6000/rs6000-builtin.def (DIVES_V4SI, DIVES_V2DI,
 328         DIVEU_V4SI, DIVEU_V2DI, DIVS_V4SI, DIVS_V2DI, DIVU_V4SI,
 329         DIVU_V2DI, MODS_V2DI, MODS_V4SI, MODU_V2DI, MODU_V4SI,
 330         MULHS_V2DI, MULHS_V4SI, MULHU_V2DI, MULHU_V4SI, MULLD_V2DI):
 331         Add builtin define.
 332         (MULH, DIVE, MOD):  Add new BU_P10_OVERLOAD_2 definitions.
 333         * config/rs6000/rs6000-call.c (VSX_BUILTIN_VEC_DIV,
 334         VSX_BUILTIN_VEC_DIVE, P10_BUILTIN_VEC_MOD, P10_BUILTIN_VEC_MULH):
 335         New overloaded definitions.
 336         (builtin_function_type) [P10V_BUILTIN_DIVEU_V4SI,
 337         P10V_BUILTIN_DIVEU_V2DI, P10V_BUILTIN_DIVU_V4SI,
 338         P10V_BUILTIN_DIVU_V2DI, P10V_BUILTIN_MODU_V2DI,
 339         P10V_BUILTIN_MODU_V4SI, P10V_BUILTIN_MULHU_V2DI,
 340         P10V_BUILTIN_MULHU_V4SI]: Add case
 341         statement for builtins.
 342         * config/rs6000/rs6000.md (bits): Add new attribute sizes V4SI, V2DI.
 343         * config/rs6000/vsx.md (VIlong): Moved from config/rs6000/altivec.md.
 344         (UNSPEC_VDIVES, UNSPEC_VDIVEU): New unspec definitions.
 345         (vsx_mul_v2di): Add if TARGET_POWER10 statement.
 346         (vsx_udiv_v2di): Add if TARGET_POWER10 statement.
 347         (dives_<mode>, diveu_<mode>, div<mode>3, uvdiv<mode>3,
 348         mods_<mode>, modu_<mode>, mulhs_<mode>, mulhu_<mode>, mulv2di3):
 349         Add define_insn, mode is VIlong.
 350         * doc/extend.texi (vec_mulh, vec_mul, vec_div, vec_dive, vec_mod):
 351         Add builtin descriptions.
 352
 353 2021-01-15  Eric Botcazou  <ebotcazou@adacore.com>
 354
 355         * final.c (final_start_function_1): Reset force_source_line.
 356
 357 2021-01-15  Jakub Jelinek  <jakub@redhat.com>
 358
 359         PR tree-optimization/96669
 360         * match.pd (((1 << A) & 1) != 0 -> A == 0,
 361         ((1 << A) & 1) == 0 -> A != 0): Generalize for 1s replaced by
 362         possibly different power of two constants and to right shift too.
 363
 364 2021-01-15  Jakub Jelinek  <jakub@redhat.com>
 365
 366         PR tree-optimization/96681
 367         * match.pd ((x < 0) ^ (y < 0) to (x ^ y) < 0): New simplification.
 368         ((x >= 0) ^ (y >= 0) to (x ^ y) < 0): Likewise.
 369         ((x < 0) ^ (y >= 0) to (x ^ y) >= 0): Likewise.
 370         ((x >= 0) ^ (y < 0) to (x ^ y) >= 0): Likewise.
 371
 372 2021-01-15  Alexandre Oliva  <oliva@adacore.com>
 373
 374         * opts.c (gen_command_line_string): Exclude -dumpbase-ext.
 375
 376 2021-01-15  Tamar Christina  <tamar.christina@arm.com>
 377
 378         * config/aarch64/aarch64-simd.md (cml<fcmac1><conj_op><mode>4,
 379         cmul<conj_op><mode>3): New.
 380         * config/aarch64/iterators.md (UNSPEC_FCMUL,
 381         UNSPEC_FCMUL180, UNSPEC_FCMLA_CONJ, UNSPEC_FCMLA180_CONJ,
 382         UNSPEC_CMLA_CONJ, UNSPEC_CMLA180_CONJ, UNSPEC_CMUL, UNSPEC_CMUL180,
 383         FCMLA_OP, FCMUL_OP, conj_op, rotsplit1, rotsplit2, fcmac1, sve_rot1,
 384         sve_rot2, SVE2_INT_CMLA_OP, SVE2_INT_CMUL_OP, SVE2_INT_CADD_OP): New.
 385         (rot): Add UNSPEC_FCMUL, UNSPEC_FCMUL180.
 386         (rot_op): Renamed to conj_op.
 387         * config/aarch64/aarch64-sve.md (cml<fcmac1><conj_op><mode>4,
 388         cmul<conj_op><mode>3): New.
 389         * config/aarch64/aarch64-sve2.md (cml<fcmac1><conj_op><mode>4,
 390         cmul<conj_op><mode>3): New.
 391
 392 2021-01-15  David Malcolm  <dmalcolm@redhat.com>
 393
 394         PR bootstrap/98696
 395         * diagnostic.c
 396         (selftest::test_print_parseable_fixits_bytes_vs_display_columns):
 397         Escape the tempfile name when constructing the expected output.
 398
 399 2021-01-15  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 400
 401         * config/aarch64/aarch64-simd.md (*aarch64_<su>mlsl_hi<mode>):
 402         Rename to...
 403         (aarch64_<su>mlsl_hi<mode>): ... This.
 404         (aarch64_<su>mlsl_hi<mode>): Define.
 405         (*aarch64_<su>mlsl<mode): Rename to...
 406         (aarch64_<su>mlsl<mode): ... This.
 407         * config/aarch64/aarch64-simd-builtins.def (smlsl, umlsl,
 408         smlsl_hi, umlsl_hi): Define builtins.
 409         * config/aarch64/arm_neon.h (vmlsl_high_s8, vmlsl_high_s16,
 410         vmlsl_high_s32, vmlsl_high_u8, vmlsl_high_u16, vmlsl_high_u32,
 411         vmlsl_s8, vmlsl_s16, vmlsl_s32, vmlsl_u8,
 412         vmlsl_u16, vmlsl_u32): Reimplement with builtins.
 413
 414 2021-01-15  Uroš Bizjak  <ubizjak@gmail.com>
 415
 416         * config/i386/i386-c.c (ix86_target_macros):
 417         Use cpp_define_formatted for __SIZEOF_FLOAT80__ definition.
 418
 419 2021-01-15  Richard Sandiford  <richard.sandiford@arm.com>
 420
 421         PR target/88836
 422         * config.gcc (aarch64*-*-*): Add aarch64-cc-fusion.o to extra_objs.
 423         * Makefile.in (RTL_SSA_H): New variable.
 424         * config/aarch64/t-aarch64 (aarch64-cc-fusion.o): New rule.
 425         * config/aarch64/aarch64-protos.h (make_pass_cc_fusion): Declare.
 426         * config/aarch64/aarch64-passes.def: Add pass_cc_fusion after
 427         pass_combine.
 428         * config/aarch64/aarch64-cc-fusion.cc: New file.
 429
 430 2021-01-15  Richard Sandiford  <richard.sandiford@arm.com>
 431
 432         * recog.h (insn_change_watermark::~insn_change_watermark): Avoid
 433         calling cancel_changes for changes that no longer exist.
 434
 435 2021-01-15  Richard Sandiford  <richard.sandiford@arm.com>
 436
 437         * rtl-ssa/functions.h (function_info::ref_defs): Rename to...
 438         (function_info::reg_defs): ...this.
 439         * rtl-ssa/member-fns.inl (function_info::ref_defs): Rename to...
 440         (function_info::reg_defs): ...this.
 441
 442 2021-01-15  Christophe Lyon  <christophe.lyon@linaro.org>
 443
 444         PR target/71233
 445         * config/arm/arm_neon.h (vceqz_p64, vceqq_p64, vceqzq_p64): New.
 446
 447 2021-01-15  Christophe Lyon  <christophe.lyon@linaro.org>
 448
 449         Revert:
 450         2021-01-15  Christophe Lyon  <christophe.lyon@linaro.org>
 451
 452         PR target/71233
 453         * config/arm/arm_neon.h (vceqz_p64, vceqq_p64, vceqzq_p64): New.
 454
 455 2021-01-15  Richard Biener  <rguenther@suse.de>
 456
 457         PR tree-optimization/96376
 458         * tree-vect-stmts.c (get_load_store_type): Disregard alignment
 459         for VMAT_INVARIANT.
 460
 461 2021-01-15  Martin Liska  <mliska@suse.cz>
 462
 463         * doc/install.texi: Document that some tests need pytest module.
 464         * doc/sourcebuild.texi: Likewise.
 465
 466 2021-01-15  Christophe Lyon  <christophe.lyon@linaro.org>
 467
 468         PR target/71233
 469         * config/arm/arm_neon.h (vceqz_p64, vceqq_p64, vceqzq_p64): New.
 470
 471 2021-01-15  Christophe Lyon  <christophe.lyon@linaro.org>
 472
 473         * config/arm/mve.md (mve_vshrq_n_s<mode>_imm): New entry.
 474         (mve_vshrq_n_u<mode>_imm): Likewise.
 475         * config/arm/neon.md (vashr<mode>3, vlshr<mode>3): Move to ...
 476         * config/arm/vec-common.md: ... here.
 477
 478 2021-01-15  Christophe Lyon  <christophe.lyon@linaro.org>
 479
 480         * config/arm/mve.md (mve_vshlq_<supf><mode>): Move to
 481         vec-commond.md.
 482         * config/arm/neon.md (vashl<mode>3): Delete.
 483         * config/arm/vec-common.md (mve_vshlq_<supf><mode>): New.
 484         (vasl<mode>3): New expander.
 485
 486 2021-01-15  Richard Biener  <rguenther@suse.de>
 487
 488         PR tree-optimization/98685
 489         * tree-vect-slp.c (vect_schedule_slp_node): Refactor handling
 490         of vector extern defs.
 491
 492 2021-01-14  David Malcolm  <dmalcolm@redhat.com>
 493
 494         PR jit/98586
 495         * diagnostic.c (diagnostic_kind_text): Break out this array
 496         from...
 497         (diagnostic_build_prefix): ...here.
 498         (fancy_abort): Detect when diagnostic_initialize has not yet been
 499         called and fall back to a minimal implementation of printing the
 500         ICE, rather than segfaulting in internal_error.
 501
 502 2021-01-14  David Malcolm  <dmalcolm@redhat.com>
 503
 504         * diagnostic.c (diagnostic_initialize): Eliminate
 505         parseable_fixits_p in favor of initializing extra_output_kind from
 506         GCC_EXTRA_DIAGNOSTIC_OUTPUT.
 507         (convert_column_unit): New function, split out from...
 508         (diagnostic_converted_column): ...this.
 509         (print_parseable_fixits): Add "column_unit" and "tabstop" params.
 510         Use them to call convert_column_unit on the column values.
 511         (diagnostic_report_diagnostic): Eliminate conditional on
 512         parseable_fixits_p in favor of a switch statement on
 513         extra_output_kind, passing the appropriate values to the new
 514         params of print_parseable_fixits.
 515         (selftest::test_print_parseable_fixits_none): Update for new
 516         params of print_parseable_fixits.
 517         (selftest::test_print_parseable_fixits_insert): Likewise.
 518         (selftest::test_print_parseable_fixits_remove): Likewise.
 519         (selftest::test_print_parseable_fixits_replace): Likewise.
 520         (selftest::test_print_parseable_fixits_bytes_vs_display_columns):
 521         New.
 522         (selftest::diagnostic_c_tests): Call it.
 523         * diagnostic.h (enum diagnostics_extra_output_kind): New.
 524         (diagnostic_context::parseable_fixits_p): Delete field in favor
 525         of...
 526         (diagnostic_context::extra_output_kind): ...this new field.
 527         * doc/invoke.texi (Environment Variables): Add
 528         GCC_EXTRA_DIAGNOSTIC_OUTPUT.
 529         * opts.c (common_handle_option): Update handling of
 530         OPT_fdiagnostics_parseable_fixits for change to diagnostic_context
 531         fields.
 532
 533 2021-01-14  Tamar Christina  <tamar.christina@arm.com>
 534
 535         * tree-vect-slp-patterns.c (class complex_operations_pattern,
 536         complex_operations_pattern::matches,
 537         complex_operations_pattern::recognize,
 538         complex_operations_pattern::build): New.
 539         (slp_patterns): Use it.
 540
 541 2021-01-14  Tamar Christina  <tamar.christina@arm.com>
 542
 543         * internal-fn.def (COMPLEX_FMS, COMPLEX_FMS_CONJ): New.
 544         * optabs.def (cmls_optab, cmls_conj_optab): New.
 545         * doc/md.texi: Document them.
 546         * tree-vect-slp-patterns.c (class complex_fms_pattern,
 547         complex_fms_pattern::matches, complex_fms_pattern::recognize,
 548         complex_fms_pattern::build): New.
 549
 550 2021-01-14  Tamar Christina  <tamar.christina@arm.com>
 551
 552         * internal-fn.def (COMPLEX_FMA, COMPLEX_FMA_CONJ): New.
 553         * optabs.def (cmla_optab, cmla_conj_optab): New.
 554         * doc/md.texi: Document them.
 555         * tree-vect-slp-patterns.c (vect_match_call_p,
 556         class complex_fma_pattern, vect_slp_reset_pattern,
 557         complex_fma_pattern::matches, complex_fma_pattern::recognize,
 558         complex_fma_pattern::build): New.
 559
 560 2021-01-14  Tamar Christina  <tamar.christina@arm.com>
 561
 562         * internal-fn.def (COMPLEX_MUL, COMPLEX_MUL_CONJ): New.
 563         * optabs.def (cmul_optab, cmul_conj_optab): New.
 564         * doc/md.texi: Document them.
 565         * tree-vect-slp-patterns.c (vect_match_call_complex_mla,
 566         vect_normalize_conj_loc, is_eq_or_top, vect_validate_multiplication,
 567         vect_build_combine_node, class complex_mul_pattern,
 568         complex_mul_pattern::matches, complex_mul_pattern::recognize,
 569         complex_mul_pattern::build): New.
 570
 571 2021-01-14  Tamar Christina  <tamar.christina@arm.com>
 572
 573         * tree-vect-slp.c (optimize_load_redistribution_1): New.
 574         (optimize_load_redistribution, vect_is_slp_load_node): New.
 575         (vect_match_slp_patterns): Use it.
 576
 577 2021-01-14  Tamar Christina  <tamar.christina@arm.com>
 578
 579         * tree-vect-slp-patterns.c (complex_add_pattern::build):
 580         Elide nodes.
 581
 582 2021-01-14  Thomas Schwinge  <thomas@codesourcery.com>
 583
 584         * config/gcn/mkoffload.c (main): Create an offload image only in
 585         64-bit configurations.
 586
 587 2021-01-14  H.J. Lu  <hjl.tools@gmail.com>
 588
 589         PR target/98667
 590         * config/i386/i386-options.c (ix86_option_override_internal):
 591         Issue an error for -fcf-protection with CF_BRANCH when compiling
 592         for 32-bit non-TARGET_CMOV targets.
 593
 594 2021-01-14  Uroš Bizjak  <ubizjak@gmail.com>
 595
 596         PR target/98671
 597         * config/i386/i386-options.c (ix86_valid_target_attribute_inner_p):
 598         Remove declaration and initialization of shadow variable "ret".
 599         (ix86_option_override_internal): Remove delcaration of
 600         shadow variable "i".  Redeclare shadowed variable to unsigned.
 601         * common/config/i386/i386-common.c (pta_size): Redeclare to unsigned.
 602         * config/i386/i386-builtins.c (get_builtin_code_for_version):
 603         Update for redeclaration.
 604         * config/i386/i386.h (pta_size): Ditto.
 605
 606 2021-01-14  Richard Biener  <rguenther@suse.de>
 607
 608         PR tree-optimization/98674
 609         * tree-data-ref.c (base_supports_access_fn_components_p): New.
 610         (initialize_data_dependence_relation): For two bases without
 611         possible access fns resort to type size equality when determining
 612         shape compatibility.
 613
 614 2021-01-14  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
 615
 616         PR target/66791
 617         * config/arm/arm_neon.h: Replace calls to __builtin_vcge* by
 618         <=, >= operators in vcle and vcge intrinsics respectively.
 619         * config/arm/arm_neon_builtins.def: Remove entry for
 620         vcge and vcgeu.
 621
 622 2021-01-14  Uroš Bizjak  <ubizjak@gmail.com>
 623
 624         PR target/98671
 625         * config/i386/i386-options.c (ix86_function_specific_save):
 626         Remove redundant assignment to opts->x_ix86_branch_cost.
 627         * config/i386/i386.c (ix86_prefetch_sse):
 628         Rename from x86_prefetch_sse.  Update all uses.
 629         * config/i386/i386.h: Update for rename.
 630         * config/i386/i386-options.h: Ditto.
 631
 632 2021-01-14  Jakub Jelinek  <jakub@redhat.com>
 633
 634         PR target/98670
 635         * config/i386/sse.md (*sse4_1_zero_extendv8qiv8hi2_3,
 636         *sse4_1_zero_extendv4hiv4si2_3, *sse4_1_zero_extendv2siv2di2_3):
 637         Use Bm instead of m for non-avx.  Add isa attribute.
 638
 639 2021-01-14  Jakub Jelinek  <jakub@redhat.com>
 640
 641         PR tree-optimization/96688
 642         * match.pd (~(X >> Y) -> ~X >> Y): New simplification if
 643         ~X can be simplified.
 644
 645 2021-01-14  Richard Sandiford  <richard.sandiford@arm.com>
 646
 647         * tree-vect-stmts.c (vect_model_load_cost): Account for unused
 648         IFN_LOAD_LANES results.
 649
 650 2021-01-14  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 651
 652         * config/aarch64/aarch64-simd.md (aarch64_<su>xtl<mode>):
 653         Define.
 654         (aarch64_xtn<mode>): Likewise.
 655         * config/aarch64/aarch64-simd-builtins.def (sxtl, uxtl, xtn):
 656         Define
 657         builtins.
 658         * config/aarch64/arm_neon.h (vmovl_s8): Reimplement using
 659         builtin.
 660         (vmovl_s16): Likewise.
 661         (vmovl_s32): Likewise.
 662         (vmovl_u8): Likewise.
 663         (vmovl_u16): Likewise.
 664         (vmovl_u32): Likewise.
 665         (vmovn_s16): Likewise.
 666         (vmovn_s32): Likewise.
 667         (vmovn_s64): Likewise.
 668         (vmovn_u16): Likewise.
 669         (vmovn_u32): Likewise.
 670         (vmovn_u64): Likewise.
 671
 672 2021-01-14  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 673
 674         * config/aarch64/aarch64-simd.md (aarch64_<su>qxtn2<mode>_le):
 675         Define.
 676         (aarch64_<su>qxtn2<mode>_be): Likewise.
 677         (aarch64_<su>qxtn2<mode>): Likewise.
 678         * config/aarch64/aarch64-simd-builtins.def (sqxtn2, uqxtn2):
 679         Define builtins.
 680         * config/aarch64/iterators.md (SAT_TRUNC): Define code_iterator.
 681         (su): Handle ss_truncate and us_truncate.
 682         * config/aarch64/arm_neon.h (vqmovn_high_s16): Reimplement using
 683         builtin.
 684         (vqmovn_high_s32): Likewise.
 685         (vqmovn_high_s64): Likewise.
 686         (vqmovn_high_u16): Likewise.
 687         (vqmovn_high_u32): Likewise.
 688         (vqmovn_high_u64): Likewise.
 689
 690 2021-01-14  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 691
 692         * config/aarch64/aarch64-simd.md (aarch64_xtn2<mode>_le):
 693         Define.
 694         (aarch64_xtn2<mode>_be): Likewise.
 695         (aarch64_xtn2<mode>): Likewise.
 696         * config/aarch64/aarch64-simd-builtins.def (xtn2): Define
 697         builtins.
 698         * config/aarch64/arm_neon.h (vmovn_high_s16): Reimplement using
 699         builtins.
 700         (vmovn_high_s32): Likewise.
 701         (vmovn_high_s64): Likewise.
 702         (vmovn_high_u16): Likewise.
 703         (vmovn_high_u32): Likewise.
 704         (vmovn_high_u64): Likewise.
 705
 706 2021-01-13  Stafford Horne  <shorne@gmail.com>
 707
 708         * config/or1k/or1k.h (ASM_PREFERRED_EH_DATA_FORMAT): New macro.
 709
 710 2021-01-13  Stafford Horne  <shorne@gmail.com>
 711
 712         * config/or1k/linux.h (TARGET_ASM_FILE_END): Define macro.
 713
 714 2021-01-13  Stafford Horne  <shorne@gmail.com>
 715
 716         * config/or1k/or1k.h (TARGET_CPU_CPP_BUILTINS): Add builtin
 717           define for __or1k_hard_float__.
 718
 719 2021-01-13  Stafford Horne  <shorne@gmail.com>
 720
 721         * config/or1k/or1k.h (NO_PROFILE_COUNTERS): Define as 1.
 722         (PROFILE_HOOK): Define to call _mcount.
 723         (FUNCTION_PROFILER): Change from abort to no-op.
 724
 725 2021-01-13  Jakub Jelinek  <jakub@redhat.com>
 726
 727         PR tree-optimization/96691
 728         * match.pd ((~X | C) ^ D -> (X | C) ^ (~D ^ C),
 729         (~X & C) ^ D -> (X & C) ^ (D ^ C)): New simplifications if
 730         (~D ^ C) or (D ^ C) can be simplified.
 731
 732 2021-01-13  Richard Biener  <rguenther@suse.de>
 733
 734         PR tree-optimization/92645
 735         * match.pd (BIT_FIELD_REF to conversion): Delay canonicalization
 736         until after vector lowering.
 737
 738 2021-01-13  Richard Sandiford  <richard.sandiford@arm.com>
 739
 740         * config/aarch64/aarch64-sve.md (fnma<mode>4): Extend from SVE_FULL_I
 741         to SVE_I.
 742         (@aarch64_pred_fnma<mode>, cond_fnma<mode>, *cond_fnma<mode>_2)
 743         (*cond_fnma<mode>_4, *cond_fnma<mode>_any): Likewise.
 744
 745 2021-01-13  Richard Sandiford  <richard.sandiford@arm.com>
 746
 747         * config/aarch64/aarch64-sve.md (fma<mode>4): Extend from SVE_FULL_I
 748         to SVE_I.
 749         (@aarch64_pred_fma<mode>, cond_fma<mode>, *cond_fma<mode>_2)
 750         (*cond_fma<mode>_4, *cond_fma<mode>_any): Likewise.
 751
 752 2021-01-13  Richard Biener  <rguenther@suse.de>
 753
 754         PR tree-optimization/92645
 755         * tree-vect-slp.c (vect_build_slp_tree_1): Relax supported
 756         BIT_FIELD_REF argument.
 757         (vect_build_slp_tree_2): Record the desired vector type
 758         on the external vector def.
 759         (vectorizable_slp_permutation): Handle required punning
 760         of existing vector defs.
 761
 762 2021-01-13  Richard Sandiford  <richard.sandiford@arm.com>
 763
 764         * rtl-ssa/accesses.h (def_lookup): Fix order of comparison results.
 765
 766 2021-01-13  Richard Sandiford  <richard.sandiford@arm.com>
 767
 768         * config/sh/sh.md (movsf_ie): Remove operands[2] test.
 769
 770 2021-01-13  Samuel Thibault  <samuel.thibault@ens-lyon.org>
 771
 772         * config.gcc [$target == *-*-gnu*]: Enable
 773         'default_gnu_indirect_function'.
 774
 775 2021-01-13  Jakub Jelinek  <jakub@redhat.com>
 776
 777         PR target/95905
 778         * optabs.c (expand_vec_perm_const): Don't force v0 and v1 into
 779         registers before calling targetm.vectorize.vec_perm_const, only after
 780         that.
 781         * config/i386/i386-expand.c (ix86_vectorize_vec_perm_const): Handle
 782         two argument permutation when one operand is zero vector and only
 783         after that force operands into registers.
 784         * config/i386/sse.md (*avx2_zero_extendv16qiv16hi2_1): New
 785         define_insn_and_split pattern.
 786         (*avx512bw_zero_extendv32qiv32hi2_1): Likewise.
 787         (*avx512f_zero_extendv16hiv16si2_1): Likewise.
 788         (*avx2_zero_extendv8hiv8si2_1): Likewise.
 789         (*avx512f_zero_extendv8siv8di2_1): Likewise.
 790         (*avx2_zero_extendv4siv4di2_1): Likewise.
 791         * config/mips/mips.c (mips_vectorize_vec_perm_const): Force operands
 792         into registers.
 793         * config/arm/arm.c (arm_vectorize_vec_perm_const): Likewise.
 794         * config/sparc/sparc.c (sparc_vectorize_vec_perm_const): Likewise.
 795         * config/ia64/ia64.c (ia64_vectorize_vec_perm_const): Likewise.
 796         * config/aarch64/aarch64.c (aarch64_vectorize_vec_perm_const): Likewise.
 797         * config/rs6000/rs6000.c (rs6000_vectorize_vec_perm_const): Likewise.
 798         * config/gcn/gcn.c (gcn_vectorize_vec_perm_const): Likewise.  Use std::swap.
 799
 800 2021-01-13  Martin Liska  <mliska@suse.cz>
 801
 802         PR tree-optimization/98455
 803         * gimple-if-to-switch.cc (condition_info::record_phi_mapping):
 804         Record also virtual PHIs.
 805         (pass_if_to_switch::execute): Return TODO_cleanup_cfg only
 806         conditionally.
 807
 808 2021-01-13  Jonathan Wakely  <jwakely@redhat.com>
 809
 810         * doc/invoke.texi (C++ Modules): Fix typos.
 811
 812 2021-01-13  Richard Biener  <rguenther@suse.de>
 813
 814         PR tree-optimization/98640
 815         * tree-ssa-sccvn.c (visit_nary_op): Do not try to
 816         handle plus or minus from a truncated operand to be
 817         sign-extended.
 818
 819 2021-01-13  Jakub Jelinek  <jakub@redhat.com>
 820
 821         PR target/96938
 822         * config/i386/i386.md (*btr<mode>_1, *btr<mode>_2): New
 823         define_insn_and_split patterns.
 824         (splitter after *btr<mode>_2): New splitter.
 825
 826 2021-01-13  Martin Liska  <mliska@suse.cz>
 827
 828         PR ipa/98652
 829         * cgraphunit.c (analyze_functions): Remove dead code.
 830
 831 2021-01-13  Qian Jianhua  <qianjh@cn.fujitsu.com>
 832
 833         * config/aarch64/aarch64-cost-tables.h (a64fx_extra_costs): New.
 834         * config/aarch64/aarch64.c (a64fx_addrcost_table): New.
 835         (a64fx_regmove_cost, a64fx_vector_cost): New.
 836         (a64fx_tunings): Use the new added cost tables.
 837
 838 2021-01-13  Jakub Jelinek  <jakub@redhat.com>
 839
 840         PR target/95905
 841         * config/i386/predicates.md (pmovzx_parallel): New predicate.
 842         * config/i386/sse.md (*sse4_1_zero_extendv8qiv8hi2_3): New
 843         define_insn_and_split pattern.
 844         (*sse4_1_zero_extendv4hiv4si2_3): Likewise.
 845         (*sse4_1_zero_extendv2siv2di2_3): Likewise.
 846
 847 2021-01-13  Julian Brown  <julian@codesourcery.com>
 848
 849         * config/gcn/gcn.c (gcn_conditional_register_usage): Remove dead code
 850         to fix v0 register.
 851
 852 2021-01-13  Julian Brown  <julian@codesourcery.com>
 853
 854         * config/gcn/gcn.c (gcn_md_reorg): Fix case where EXEC reg is live
 855         on entry to a BB.
 856
 857 2021-01-13  Julian Brown  <julian@codesourcery.com>
 858
 859         * config/gcn/gcn-valu.md (recip<mode>2<exec>, recip<mode>2): Use unspec
 860         for reciprocal-approximation instructions.
 861         (div<mode>3): Use fused multiply-accumulate operations for reciprocal
 862         refinement and division result.
 863         * config/gcn/gcn.md (UNSPEC_RCP): New unspec constant.
 864
 865 2021-01-13  Julian Brown  <julian@codesourcery.com>
 866
 867         * config/gcn/gcn-valu.md (subdf): Rename to...
 868         (subdf3): This.
 869
 870 2021-01-12  Martin Liska  <mliska@suse.cz>
 871
 872         * gcov.c (source_info::debug): Fix printf format for 32-bit hosts.
 873
 874 2021-01-12  Andrea Corallo  <andrea.corallo@arm.com>
 875
 876         * function-abi.h: Fix typo.
 877
 878 2021-01-12  Christophe Lyon  <christophe.lyon@linaro.org>
 879
 880         PR target/97875
 881         PR target/97875
 882         * config/arm/arm.h (ARM_HAVE_NEON_V8QI_LDST): New macro.
 883         (ARM_HAVE_NEON_V16QI_LDST, ARM_HAVE_NEON_V4HI_LDST): Likewise.
 884         (ARM_HAVE_NEON_V8HI_LDST, ARM_HAVE_NEON_V2SI_LDST): Likewise.
 885         (ARM_HAVE_NEON_V4SI_LDST, ARM_HAVE_NEON_V4HF_LDST): Likewise.
 886         (ARM_HAVE_NEON_V8HF_LDST, ARM_HAVE_NEON_V4BF_LDST): Likewise.
 887         (ARM_HAVE_NEON_V8BF_LDST, ARM_HAVE_NEON_V2SF_LDST): Likewise.
 888         (ARM_HAVE_NEON_V4SF_LDST, ARM_HAVE_NEON_DI_LDST): Likewise.
 889         (ARM_HAVE_NEON_V2DI_LDST): Likewise.
 890         (ARM_HAVE_V8QI_LDST, ARM_HAVE_V16QI_LDST): Likewise.
 891         (ARM_HAVE_V4HI_LDST, ARM_HAVE_V8HI_LDST): Likewise.
 892         (ARM_HAVE_V2SI_LDST, ARM_HAVE_V4SI_LDST, ARM_HAVE_V4HF_LDST): Likewise.
 893         (ARM_HAVE_V8HF_LDST, ARM_HAVE_V4BF_LDST, ARM_HAVE_V8BF_LDST): Likewise.
 894         (ARM_HAVE_V2SF_LDST, ARM_HAVE_V4SF_LDST, ARM_HAVE_DI_LDST): Likewise.
 895         (ARM_HAVE_V2DI_LDST): Likewise.
 896         * config/arm/mve.md (*movmisalign<mode>_mve_store): New pattern.
 897         (*movmisalign<mode>_mve_load): New pattern.
 898         * config/arm/neon.md (movmisalign<mode>): Move to ...
 899         * config/arm/vec-common.md: ... here.
 900
 901 2021-01-12  Vladimir N. Makarov  <vmakarov@redhat.com>
 902
 903         PR target/97969
 904         * lra-eliminations.c (eliminate_regs_in_insn): Add transformation
 905         of pattern 'plus (plus (hard reg, const), pseudo)'.
 906
 907 2021-01-12  Richard Biener  <rguenther@suse.de>
 908
 909         PR tree-optimization/98550
 910         * tree-vect-slp.c (vect_record_max_nunits): Check whether
 911         the group size is a multiple of the vector element count.
 912         (vect_build_slp_tree_1): When we need to fail because
 913         the vector type choosen causes unrolling do so lazily
 914         without affecting matches only at the end to guide group splitting.
 915
 916 2021-01-12  Martin Liska  <mliska@suse.cz>
 917
 918         PR c++/97284
 919         * optc-save-gen.awk: Compare also n_target_save vars with
 920         strcmp.
 921
 922 2021-01-12  Martin Liska  <mliska@suse.cz>
 923
 924         * gcov.c (source_info::debug): New.
 925         (print_usage): Add --debug (-D) option.
 926         (process_args): Likewise.
 927         (generate_results): Call src->debug after
 928         accumulate_line_counts.
 929         (read_graph_file): Properly assign id for EXIT_BLOCK.
 930         * profile.c (branch_prob): Dump function body before it is
 931         instrumented.
 932
 933 2021-01-12  Jakub Jelinek  <jakub@redhat.com>
 934
 935         PR tree-optimization/98629
 936         * tree-ssa-math-opts.c (arith_overflow_check_p): Don't update use_stmt
 937         unless returning non-zero.
 938
 939 2021-01-12  Jakub Jelinek  <jakub@redhat.com>
 940
 941         PR tree-optimization/95731
 942         * tree-ssa-reassoc.c (optimize_range_tests_cmp_bitwise): Also optimize
 943         x < 0 && y < 0 && z < 0 into (x | y | z) < 0 for signed x, y, z.
 944         (optimize_range_tests): Call optimize_range_tests_cmp_bitwise
 945         only after optimize_range_tests_var_bound.
 946
 947 2021-01-12  Jakub Jelinek  <jakub@redhat.com>
 948
 949         * configure.ac: Ensure c/Make-lang.in comes first in @all_lang_makefrags@.
 950         * configure: Regenerated.
 951
 952 2021-01-12  liuhongt  <hongtao.liu@intel.com>
 953
 954         PR target/98612
 955         * config/i386/i386-builtins.h (BUILTIN_DESC_SWAP_OPERANDS):
 956         Deleted.
 957         * config/i386/i386-expand.c (ix86_expand_sse_comi): Delete
 958         dead code.
 959
 960 2021-01-12  Alexandre Oliva  <oliva@adacore.com>
 961
 962         * ssa-iterators.h (end_imm_use_stmt_traverse): Forward
 963         declare.
 964         (auto_end_imm_use_stmt_traverse): New struct.
 965         (FOR_EACH_IMM_USE_STMT): Use it.
 966         (BREAK_FROM_IMM_USE_STMT, RETURN_FROM_IMM_USE_STMT): Remove,
 967         along with uses...
 968         * gimple-ssa-strength-reduction.c: ... here, ...
 969         * graphite-scop-detection.c: ... here, ...
 970         * ipa-modref.c, ipa-pure-const.c, ipa-sra.c: ... here, ...
 971         * tree-predcom.c, tree-ssa-ccp.c: ... here, ...
 972         * tree-ssa-dce.c, tree-ssa-dse.c: ... here, ...
 973         * tree-ssa-loop-ivopts.c, tree-ssa-math-opts.c: ... here, ...
 974         * tree-ssa-phiprop.c, tree-ssa.c: ... here, ...
 975         * tree-vect-slp.c: ... and here, ...
 976         * doc/tree-ssa.texi: ... and the example here.
 977
 978 2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>
 979
 980         * config/aarch64/aarch64-sve.md (sdiv_pow2<mode>3): Extend from
 981         SVE_FULL_I to SVE_I.  Generate an UNSPEC_PRED_X.
 982         (*sdiv_pow2<mode>3): New pattern.
 983         (@cond_<sve_int_op><mode>): Extend from SVE_FULL_I to SVE_I.
 984         Wrap the ASRD in an UNSPEC_PRED_X.
 985         (*cond_<sve_int_op><mode>_2): Likewise.  Replace the UNSPEC_PRED_X
 986         predicate with a constant PTRUE, if it isn't already.
 987         (*cond_<sve_int_op><mode>_z): Replace with...
 988         (*cond_<sve_int_op><mode>_any): ...this new pattern.
 989
 990 2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>
 991
 992         * config/aarch64/aarch64-sve.md (*cond_bic<mode>_2): Extend from
 993         SVE_FULL_I to SVE_I.
 994         (*cond_bic<mode>_any): Likewise.
 995
 996 2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>
 997
 998         * config/aarch64/aarch64-sve.md (<su>mul<mode>3_highpart)
 999         (@aarch64_pred_<MUL_HIGHPART:optab><mode>): Extend from SVE_FULL_I
1000         to SVE_I.
1001
1002 2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>
1003
1004         * config/aarch64/aarch64-sve.md (<su>abd<mode>_3): Extend from
1005         SVE_FULL_I to SVE_I.
1006         (*aarch64_cond_<su>abd<mode>_2): Likewise.
1007         (*aarch64_cond_<su>abd<mode>_any): Likewise.
1008         (@aarch64_pred_<su>abd<mode>): Likewise.  Use UNSPEC_PRED_X
1009         for the max and min but not for the minus.
1010         (*aarch64_cond_<su>abd<mode>_3): New pattern.
1011
1012 2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>
1013
1014         * config/aarch64/iterators.md (SVE_24I): New iterator.
1015         * config/aarch64/aarch64-sve.md (*aarch64_adr<mode>_shift): Extend from
1016         SVE_FULL_SDI to SVE_24I.  Use containers rather than elements.
1017
1018 2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>
1019
1020         * config/aarch64/aarch64-sve.md (@cond_<SVE_INT_BINARY:optab><mode>)
1021         (*cond_<SVE_INT_BINARY:optab><mode>_2): Extend from SVE_FULL_I
1022         to SVE_I.
1023         (*cond_<SVE_INT_BINARY:optab><mode>_3): Likewise.
1024         (*cond_<SVE_INT_BINARY:optab><mode>_any): Likewise.
1025         (*cond_<SVE_INT_BINARY:optab><mode>_2_const): Likewise.
1026         (*cond_<SVE_INT_BINARY:optab><mode>_any_const): Likewise.
1027
1028 2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>
1029
1030         * config/aarch64/aarch64-sve.md (<SVE_INT_BINARY_IMM:optab><mode>3)
1031         (@aarch64_pred_<SVE_INT_BINARY_IMM:optab><mode>)
1032         (*post_ra_<SVE_INT_BINARY_IMM:optab><mode>3): Extend from SVE_FULL_I
1033         to SVE_I.
1034
1035 2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>
1036
1037         * config/aarch64/aarch64-sve.md (<ASHIFT:optab><mode>3)
1038         (v<ASHIFT:optab><mode>3, @aarch64_pred_<optab><mode>)
1039         (*post_ra_v<ASHIFT:optab><mode>3): Extend from SVE_FULL_I to SVE_I.
1040
1041 2021-01-11  Martin Liska  <mliska@suse.cz>
1042
1043         PR jit/98615
1044         * symtab-clones.h (clone_info::release): Release
1045         symtab::m_clones with ggc_delete as it's a GGC memory.
1046
1047 2021-01-11  Matthias Klose  <doko@ubuntu.com>
1048
1049         * Makefile.in (LINK_PROGRESS): Show the link target.
1050
1051 2021-01-11  Richard Biener  <rguenther@suse.de>
1052
1053         PR tree-optimization/91403
1054         * tree-vect-data-refs.c (vect_analyze_group_access_1): Cap
1055         single-element interleaving group size at 4096 elements.
1056
1057 2021-01-11  Richard Biener  <rguenther@suse.de>
1058
1059         PR tree-optimization/98526
1060         * tree-vect-loop.c (vect_model_reduction_cost): Remove costing
1061         of the actual reduction op for the regular case.
1062         (vectorizable_reduction): Cost the stmts
1063         vect_transform_reduction produces here.
1064
1065 2021-01-11  Andreas Krebbel  <krebbel@linux.ibm.com>
1066
1067         * tree-ssa-forwprop.c (simplify_vector_constructor): For
1068         big-endian, use UNPACK[_FLOAT]_HI.
1069
1070 2021-01-11  Tamar Christina  <tamar.christina@arm.com>
1071
1072         * tree-vect-slp-patterns.c (class complex_pattern,
1073         class complex_add_pattern): Add parameters to matches.
1074         (complex_add_pattern::build): Free memory.
1075         (complex_add_pattern::matches): Move validation end of match.
1076         (complex_add_pattern::recognize): Likewise.
1077
1078 2021-01-11  Tamar Christina  <tamar.christina@arm.com>
1079
1080         * tree-vect-slp-patterns.c (linear_loads_p): Fix externals.
1081
1082 2021-01-11  Tamar Christina  <tamar.christina@arm.com>
1083
1084         * tree-vect-slp-patterns.c (is_linear_load_p): Fix ambiguity.
1085
1086 2021-01-11  Jakub Jelinek  <jakub@redhat.com>
1087
1088         PR tree-optimization/95867
1089         * tree-ssa-math-opts.h: New header.
1090         * tree-ssa-math-opts.c: Include tree-ssa-math-opts.h.
1091         (powi_as_mults): No longer static.  Use build_one_cst instead of
1092         build_real.  Formatting fix.
1093         * tree-ssa-reassoc.c: Include tree-ssa-math-opts.h.
1094         (attempt_builtin_powi): Handle multiplication reassociation without
1095         powi_fndecl using powi_as_mults.
1096         (reassociate_bb): For integral types don't require
1097         -funsafe-math-optimizations to call attempt_builtin_powi.
1098
1099 2021-01-11  Jakub Jelinek  <jakub@redhat.com>
1100
1101         PR tree-optimization/95852
1102         * tree-ssa-math-opts.c (maybe_optimize_guarding_check): Change
1103         mul_stmts parameter type to vec<gimple *> &.  Before cond_stmt
1104         allow in the bb any of the stmts in that vector, div_stmt and
1105         up to 3 cast stmts.
1106         (arith_cast_equal_p): New function.
1107         (arith_overflow_check_p): Add cast_stmt argument, handle signed
1108         multiply overflow checks.
1109         (match_arith_overflow): Adjust caller.  Handle signed multiply
1110         overflow checks.
1111
1112 2021-01-11  Jakub Jelinek  <jakub@redhat.com>
1113
1114         PR tree-optimization/95852
1115         * tree-ssa-math-opts.c (maybe_optimize_guarding_check): New function.
1116         (uaddsub_overflow_check_p): Renamed to ...
1117         (arith_overflow_check_p): ... this.  Handle also multiplication
1118         with overflow check.
1119         (match_uaddsub_overflow): Renamed to ...
1120         (match_arith_overflow): ... this.  Add cfg_changed argument.  Handle
1121         also multiplication with overflow check.  Adjust function comment.
1122         (math_opts_dom_walker::after_dom_children): Adjust callers.  Call
1123         match_arith_overflow also for MULT_EXPR.
1124
1125 2021-01-11  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
1126
1127         * config/aarch64/arm_neon.h (vmovl_s8): Reimplement using
1128         __builtin_convertvector.
1129         (vmovl_s16): Likewise.
1130         (vmovl_s32): Likewise.
1131         (vmovl_u8): Likewise.
1132         (vmovl_u16): Likewise.
1133         (vmovl_u32): Likewise.
1134         (vmovn_s16): Likewise.
1135         (vmovn_s32): Likewise.
1136         (vmovn_s64): Likewise.
1137         (vmovn_u16): Likewise.
1138         (vmovn_u32): Likewise.
1139         (vmovn_u64): Likewise.
1140
1141 2021-01-11  Martin Liska  <mliska@suse.cz>
1142
1143         * gimple-if-to-switch.cc (struct condition_info): Use auto_var.
1144         (if_chain::is_beneficial): Delete clusters
1145         (find_conditions): Make second argument of conditions_in_bbs a
1146         pointer so that we control over it's lifetime.
1147         (pass_if_to_switch::execute): Delete them.
1148
1149 2021-01-11  Kewen Lin  <linkw@linux.ibm.com>
1150
1151         * ira.c (move_unallocated_pseudos): Check other_reg and skip if
1152         it isn't set.
1153
1154 2021-01-09  Maciej W. Rozycki  <macro@linux-mips.org>
1155
1156         * config/vax/vax.md (cc): Remove mode attribute.
1157         (subst_<cc>, subst_f<cc>): Rename to...
1158         (subst_<mode>, subst_f<VAXccnz:mode>): ... these respectively.
1159         (*cbranch<VAXint:mode>4_<VAXcc:mode>): Update for `cc' removal.
1160         (*cbranch<VAXfp:mode>4_<VAXccnz:mode>): Likewise.
1161         (*branch_<mode>, *branch_<mode>_reversed): Likewise.
1162
1163 2021-01-09  Maciej W. Rozycki  <macro@linux-mips.org>
1164
1165         * config/vax/vax.md (subst_f<cc>): Add mode to operands and
1166         `const_double_zero'.
1167
1168 2021-01-09  Maciej W. Rozycki  <macro@linux-mips.org>
1169
1170         * config/pdp11/pdp11.md (PDPfp): New mode iterator.
1171         (fcc_cc, fcc_ccnz): Use it.  Add mode to `const_double_zero' and
1172         operands.
1173
1174 2021-01-09  Maciej W. Rozycki  <macro@linux-mips.org>
1175
1176         * genemit.c (gen_exp) <CONST_DOUBLE>: Handle `const_double_zero'
1177         rtx.
1178         * read-rtl.c (rtx_reader::read_rtx_code): Handle machine mode
1179         with `const_double_zero'.
1180         * doc/rtl.texi (Constant Expression Types): Document it.
1181
1182 2021-01-09  Jakub Jelinek  <jakub@redhat.com>
1183
1184         PR c++/98556
1185         * tree-cfg.c (verify_gimple_assign_binary): Allow lhs of
1186         POINTER_DIFF_EXPR to be any integral type.
1187
1188 2021-01-09  Jakub Jelinek  <jakub@redhat.com>
1189
1190         PR rtl-optimization/98603
1191         * function.c (instantiate_virtual_regs_in_insn): For asm goto
1192         with impossible constraints, drop all SETs, CLOBBERs, drop PARALLEL
1193         if any, set ASM_OPERANDS mode to VOIDmode and change
1194         ASM_OPERANDS_OUTPUT_CONSTRAINT and ASM_OPERANDS_OUTPUT_IDX.
1195
1196 2021-01-09  Alexandre Oliva  <oliva@gnu.org>
1197
1198         PR debug/97714
1199         * final.c (notice_source_line): Narrow down the condition to
1200         skip a line-0 marker.
1201
1202 2021-01-08  Sergei Trofimovich  <siarheit@google.com>
1203
1204         * ipa-modref.c (merge_call_side_effects): Fix
1205         linebreak split by reordering two print calls.
1206
1207 2021-01-08  Ilya Leoshkevich  <iii@linux.ibm.com>
1208
1209         * config/s390/vector.md (*tf_to_fprx2_0): Rename from
1210         "*mov_tf_to_fprx2_0" for consistency, fix constraint.
1211         (*tf_to_fprx2_1): Rename from "*mov_tf_to_fprx2_1" for
1212         consistency, fix constraint.
1213
1214 2021-01-08  Ilya Leoshkevich  <iii@linux.ibm.com>
1215
1216         * config/s390/s390-c.c (s390_def_or_undef_macro): Accept
1217         callables instead of mask values.
1218         (struct target_flag_set_p): New predicate.
1219         (s390_cpu_cpp_builtins_internal): Define or undefine
1220         __LONG_DOUBLE_VX__ macro.
1221
1222 2021-01-08  H.J. Lu  <hjl.tools@gmail.com>
1223
1224         PR target/98482
1225         * config/i386/i386.c (x86_function_profiler): Use R10 and R11
1226         to call mcount in large model with PIC for NO_PROFILE_COUNTERS
1227         targets.
1228
1229 2021-01-08  Richard Biener  <rguenther@suse.de>
1230
1231         * tree-ssa-sccvn.c (pass_fre::execute): Reset the SCEV hash table.
1232
1233 2021-01-08  Richard Biener  <rguenther@suse.de>
1234
1235         * tree-vect-slp.c (scalar_stmts_to_slp_tree_map_t): Fix.
1236         (vect_build_slp_tree): On cache hit release the matched
1237         scalar stmts vector.
1238         * tree-vect-stmts.c (vectorizable_store): Properly free
1239         vec_oprnds before possibly gathering them again.
1240
1241 2021-01-08  Richard Biener  <rguenther@suse.de>
1242
1243         PR tree-optimization/98544
1244         * tree-vect-slp.c (vect_optimize_slp): Always materialize
1245         permutes at a permute node.
1246
1247 2021-01-08  H.J. Lu  <hjl.tools@gmail.com>
1248
1249         PR target/98482
1250         * config/i386/i386.c (x86_function_profiler): Use R10 to call
1251         mcount in large model.  Sorry for large model with PIC.
1252
1253 2021-01-08  Jakub Jelinek  <jakub@redhat.com>
1254
1255         PR target/98585
1256         * config/i386/i386.opt (ix86_cmodel, ix86_incoming_stack_boundary_arg,
1257         ix86_pmode, ix86_preferred_stack_boundary_arg, ix86_regparm,
1258         ix86_veclibabi_type): Remove x_ prefix, use TargetVariable instead of
1259         TargetSave and initialize for variables with enum types.
1260         (mfentry, mstack-protector-guard-reg=, mstack-protector-guard-offset=,
1261         mstack-protector-guard-symbol=): Add Save.
1262         * config/i386/i386-options.c (ix86_function_specific_save,
1263         ix86_function_specific_restore): Don't save or restore x_ix86_cmodel,
1264         x_ix86_incoming_stack_boundary_arg, x_ix86_pmode,
1265         x_ix86_preferred_stack_boundary_arg, x_ix86_regparm,
1266         x_ix86_veclibabi_type.
1267
1268 2021-01-08  Richard Sandiford  <richard.sandiford@arm.com>
1269
1270         * config/aarch64/aarch64-sve.md (*cnot<mode>): Extend from
1271         SVE_FULL_I to SVE_I.
1272         (*cond_cnot<mode>_2, *cond_cnot<mode>_any): Likewise.
1273
1274 2021-01-08  Richard Sandiford  <richard.sandiford@arm.com>
1275
1276         * config/aarch64/aarch64-sve.md (*cond_uxt<mode>_2): Extend from
1277         SVE_FULL_I to SVE_I.
1278         (*cond_uxt<mode>_any): Likewise.
1279
1280 2021-01-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
1281
1282         * config/aarch64/iterators.md (Vwhalf): New iterator.
1283         * config/aarch64/aarch64-simd.md (aarch64_<sur>adalp<mode>_3):
1284         Rename to...
1285         (aarch64_<sur>adalp<mode>): ... This.  Make more
1286         builtin-friendly.
1287         (<sur>sadv16qi): Adjust callsite of the above.
1288         * config/aarch64/aarch64-simd-builtins.def (sadalp, uadalp): New
1289         builtins.
1290         * config/aarch64/arm_neon.h (vpadal_s8): Reimplement using
1291         builtins.
1292         (vpadal_s16): Likewise.
1293         (vpadal_u8): Likewise.
1294         (vpadal_u16): Likewise.
1295         (vpadalq_s8): Likewise.
1296         (vpadalq_s16): Likewise.
1297         (vpadalq_s32): Likewise.
1298         (vpadalq_u8): Likewise.
1299         (vpadalq_u16): Likewise.
1300         (vpadalq_u32): Likewise.
1301
1302 2021-01-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
1303
1304         * config/aarch64/aarch64-simd.md (aarch64_<su>abd<mode>_3):
1305         Rename to...
1306         (aarch64_<su>abd<mode>): ... This.
1307         (<sur>sadv16qi): Adjust callsite of the above.
1308         * config/aarch64/aarch64-simd-builtins.def (sabd, uabd): Define
1309         builtins.
1310         * config/aarch64/arm_neon.h (vabd_s8): Reimplement using
1311         builtin.
1312         (vabd_s16): Likewise.
1313         (vabd_s32): Likewise.
1314         (vabd_u8): Likewise.
1315         (vabd_u16): Likewise.
1316         (vabd_u32): Likewise.
1317         (vabdq_s8): Likewise.
1318         (vabdq_s16): Likewise.
1319         (vabdq_s32): Likewise.
1320         (vabdq_u8): Likewise.
1321         (vabdq_u16): Likewise.
1322         (vabdq_u32): Likewise.
1323
1324 2021-01-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
1325
1326         * config/aarch64/aarch64-simd-builtins.def (saba, uaba): Define
1327         builtins.
1328         * config/aarch64/arm_neon.h (vaba_s8): Implement using builtin.
1329         (vaba_s16): Likewise.
1330         (vaba_s32): Likewise.
1331         (vaba_u8): Likewise.
1332         (vaba_u16): Likewise.
1333         (vaba_u32): Likewise.
1334         (vabaq_s8): Likewise.
1335         (vabaq_s16): Likewise.
1336         (vabaq_s32): Likewise.
1337         (vabaq_u8): Likewise.
1338         (vabaq_u16): Likewise.
1339         (vabaq_u32): Likewise.
1340
1341 2021-01-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
1342
1343         * config/aarch64/aarch64-simd.md (aba<mode>_3): Rename to...
1344         (aarch64_<su>aba<mode>): ... This.  Handle uaba as well.
1345         Change RTL pattern to match.
1346
1347 2021-01-08  Kito Cheng  <kito.cheng@sifive.com>
1348
1349         * common/config/riscv/riscv-common.c (riscv_current_subset_list): New.
1350         * config/riscv/riscv-c.c (riscv-subset.h): New.
1351         (INCLUDE_STRING): Define.
1352         (riscv_cpu_cpp_builtins): Add new style architecture extension
1353         test macros.
1354         * config/riscv/riscv-subset.h (riscv_subset_list::begin): New.
1355         (riscv_subset_list::end): New.
1356         (riscv_current_subset_list): New.
1357
1358 2021-01-08  Kito Cheng  <kito.cheng@sifive.com>
1359
1360         * common/config/riscv/riscv-common.c (RISCV_DONT_CARE_VERSION):
1361         Move to riscv-subset.h.
1362         (struct riscv_subset_t): Ditto.
1363         (class riscv_subset_list): Ditto.
1364         * config/riscv/riscv-subset.h (RISCV_DONT_CARE_VERSION): Move
1365         from riscv-common.c.
1366         (struct riscv_subset_t): Ditto.
1367         (class riscv_subset_list): Ditto.
1368         * config/riscv/t-riscv ($(common_out_file)): Add file
1369         dependency.
1370
1371 2021-01-07  Jakub Jelinek  <jakub@redhat.com>
1372
1373         PR target/98567
1374         * config/i386/i386.md (*bmi_blsi_<mode>_cmp, *bmi_blsi_<mode>_ccno):
1375         New define_insn patterns.
1376
1377 2021-01-07  Richard Sandiford  <richard.sandiford@arm.com>
1378
1379         * config/aarch64/aarch64-sve.md (@cond_<SVE_INT_UNARY:optab><mode>)
1380         (*cond_<SVE_INT_UNARY:optab><mode>_2): Extend from SVE_FULL_I to SVE_I.
1381         (*cond_<SVE_INT_UNARY:optab><mode>_any): Likewise.
1382
1383 2021-01-07  Richard Sandiford  <richard.sandiford@arm.com>
1384
1385         PR tree-optimization/98560
1386         * internal-fn.def (IFN_VCONDU, IFN_VCONDEQ): Use type vec_cond.
1387         * internal-fn.c (vec_cond_mask_direct): Get the data mode from
1388         argument 1.
1389         (vec_cond_direct): Likewise argument 2.
1390         (vec_condu_direct, vec_condeq_direct): Delete.
1391         (expand_vect_cond_optab_fn): Rename to...
1392         (expand_vec_cond_optab_fn): ...this, replacing old macro.
1393         (expand_vec_condu_optab_fn, expand_vec_condeq_optab_fn): Delete.
1394         (expand_vect_cond_mask_optab_fn): Rename to...
1395         (expand_vec_cond_mask_optab_fn): ...this, replacing old macro.
1396         (direct_vec_cond_mask_optab_supported_p): Treat the optab as a
1397         convert optab.
1398         (direct_vec_cond_optab_supported_p): Likewise.
1399         (direct_vec_condu_optab_supported_p): Delete.
1400         (direct_vec_condeq_optab_supported_p): Delete.
1401         * gimple-isel.cc: Include internal-fn.h.
1402         (gimple_expand_vec_cond_expr): Check that IFN_VCONDEQ is supported
1403         before using it.
1404
1405 2021-01-07  Richard Sandiford  <richard.sandiford@arm.com>
1406
1407         PR tree-optimization/98560
1408         * gimple-isel.cc (gimple_expand_vec_cond_expr): If we fail to use
1409         IFN_VCOND{,U,EQ}, fall back on IFN_VCOND_MASK.
1410
1411 2021-01-07  Uroš Bizjak  <ubizjak@gmail.com>
1412
1413         * config/i386/i386.md (insn): Merge from plusminus_insn, shift_insn,
1414         rotate_insn and optab code attributes.
1415         Update all uses to merged code attribute.
1416         * config/i386/sse.md: Update all uses to merged code attribute.
1417         * config/i386/mmx.md: Update all uses to merged code attribute.
1418
1419 2021-01-07  Jakub Jelinek  <jakub@redhat.com>
1420
1421         PR tree-optimization/98568
1422         * gimple-ssa-store-merging.c (bswap_view_convert): New function.
1423         (bswap_replace): Use it.
1424
1425 2021-01-06  Vladimir N. Makarov  <vmakarov@redhat.com>
1426
1427         PR rtl-optimization/97978
1428         * lra-int.h (lra_hard_reg_split_p): New external.
1429         * lra.c (lra_hard_reg_split_p): New global.
1430         (lra): Set up lra_hard_reg_split_p after splitting a hard reg.
1431         * lra-assigns.c (lra_assign): Don't check allocation correctness
1432         after hard reg splitting.
1433
1434 2021-01-06  Martin Sebor  <msebor@redhat.com>
1435
1436         PR c++/98305
1437         * builtins.c (new_delete_mismatch_p): New overload.
1438         (new_delete_mismatch_p (tree, tree)): Call it.
1439
1440 2021-01-06  Alexandre Oliva  <oliva@adacore.com>
1441
1442         * Makefile.in (T_GLIMITS_H): New.
1443         (stmp-int-hdrs): Depend on it, use it.
1444         * config/t-vxworks (T_GLIMITS_H): Override it.
1445         (vxw-glimits.h): New.
1446
1447 2021-01-06  Richard Biener  <rguenther@suse.de>
1448
1449         PR tree-optimization/98513
1450         * value-range.cc (intersect_ranges): Compare the upper bounds
1451         for the expected relation.
1452
1453 2021-01-06  Gerald Pfeifer  <gerald@pfeifer.com>
1454
1455         Revert:
1456         2020-12-28  Gerald Pfeifer  <gerald@pfeifer.com>
1457
1458         * doc/standards.texi (HSAIL): Remove section.
1459
1460 2021-01-05  Samuel Thibault  <samuel.thibault@ens-lyon.org>
1461
1462         * configure: Re-generate.
1463
1464 2021-01-05  Jakub Jelinek  <jakub@redhat.com>
1465
1466         * doc/invoke.texi (-std=c++20): Adjust for the publication of
1467         ISO 14882:2020 standard.
1468         * doc/standards.texi: Likewise.
1469
1470 2021-01-05  Jakub Jelinek  <jakub@redhat.com>
1471
1472         PR tree-optimization/94802
1473         * expr.h (maybe_optimize_sub_cmp_0): Declare.
1474         * expr.c: Include tree-pretty-print.h and flags.h.
1475         (maybe_optimize_sub_cmp_0): New function.
1476         (do_store_flag): Use it.
1477         * cfgexpand.c (expand_gimple_cond): Likewise.
1478
1479 2021-01-05  Richard Sandiford  <richard.sandiford@arm.com>
1480
1481         * mux-utils.h (pointer_mux::m_ptr): Tweak description of contents.
1482         * rtlanal.c (simple_regno_set): Tweak description to clarify the
1483         RMW condition.
1484
1485 2021-01-05  Richard Biener  <rguenther@suse.de>
1486
1487         PR tree-optimization/98516
1488         * tree-vect-slp.c (vect_optimize_slp): Permute the incoming
1489         lanes when materializing on a VEC_PERM node.
1490         (vectorizable_slp_permutation): Dump the permute properly.
1491
1492 2021-01-05  Richard Biener  <rguenther@suse.de>
1493
1494         * tree-vect-slp.c (vect_slp_region): Move debug counter
1495         to cover individual subgraphs.
1496
1497 2021-01-05  Richard Biener  <rguenther@suse.de>
1498
1499         PR tree-optimization/98428
1500         * tree-vect-slp.c (vect_build_slp_tree_1): Properly reject
1501         vector lane extracts for loop vectorization.
1502
1503 2021-01-05  Jakub Jelinek  <jakub@redhat.com>
1504
1505         PR tree-optimization/98514
1506         * tree-ssa-reassoc.c (bb_rank): Change type from long * to
1507         int64_t *.
1508         (operand_rank): Change type from hash_map<tree, long> to
1509         hash_map<tree, int64_t>.
1510         (phi_rank): Change return type from long to int64_t.
1511         (loop_carried_phi): Change block_rank variable type from long to
1512         int64_t.
1513         (propagate_rank): Change return type, rank parameter type and
1514         op_rank variable type from long to int64_t.
1515         (find_operand_rank): Change return type from long to int64_t
1516         and change slot variable type from long * to int64_t *.
1517         (insert_operand_rank): Change rank parameter type from long to
1518         int64_t.
1519         (get_rank): Change return type and rank variable type from long to
1520         int64_t.  Use PRId64 instead of ld to print the rank.
1521         (init_reassoc): Change rank variable type from long to int64_t
1522         and adjust correspondingly bb_rank and operand_rank initialization.
1523
1524 2021-01-05  Jakub Jelinek  <jakub@redhat.com>
1525
1526         PR tree-optimization/96928
1527         * tree-ssa-phiopt.c (xor_replacement): New function.
1528         (tree_ssa_phiopt_worker): Call it.
1529
1530 2021-01-05  Jakub Jelinek  <jakub@redhat.com>
1531
1532         PR tree-optimization/96930
1533         * match.pd ((A / (1 << B)) -> (A >> B)): If A is extended
1534         from narrower value which has the same type as 1 << B, perform
1535         the right shift on the narrower value followed by extension.
1536
1537 2021-01-05  Jakub Jelinek  <jakub@redhat.com>
1538
1539         PR tree-optimization/96239
1540         * gimple-ssa-store-merging.c (maybe_optimize_vector_constructor): New
1541         function.
1542         (get_status_for_store_merging): Don't return BB_INVALID for blocks
1543         with potential bswap optimizable CONSTRUCTORs.
1544         (pass_store_merging::execute): Optimize vector CONSTRUCTORs with bswap
1545         if possible.
1546
1547 2021-01-05  Richard Biener  <rguenther@suse.de>
1548
1549         PR tree-optimization/98381
1550         * tree.c (vector_element_bits): Properly compute bool vector
1551         element size.
1552         * tree-vect-loop.c (vectorizable_live_operation): Properly
1553         compute the last lane bit offset.
1554
1555 2021-01-05  Uroš Bizjak  <ubizjak@gmail.com>
1556
1557         PR target/98522
1558         * config/i386/sse.md (sse_cvtps2pi): Redefine as define_insn_and_split.
1559         Clear the top 64 bytes of the input XMM register.
1560         (sse_cvttps2pi): Ditto.
1561
1562 2021-01-05  Uroš Bizjak  <ubizjak@gmail.com>
1563
1564         PR target/98521
1565         * config/i386/xopintrin.h (_mm256_cmov_si256): New.
1566
1567 2021-01-05  H.J. Lu  <hjl.tools@gmail.com>
1568
1569         PR target/98495
1570         * config/i386/xmmintrin.h (_mm_extract_pi16): Cast to unsigned
1571         short first.
1572
1573 2021-01-05  Claudiu Zissulescu  <claziss@synopsys.com>
1574
1575         * config/arc/arc.md (maddsidi4_split): Use ACC_REG_FIRST.
1576         (umaddsidi4_split): Likewise.
1577
1578 2021-01-05  liuhongt  <hongtao.liu@intel.com>
1579
1580         PR target/98461
1581         * config/i386/sse.md (*sse2_pmovskb_zexthisi): New
1582         define_insn_and_split for zero_extend of subreg HI of pmovskb
1583         result.
1584         (*sse2_pmovskb_zexthisi): Add new combine splitters for
1585         zero_extend of not of subreg HI of pmovskb result.
1586
1587 2021-01-05  Richard Sandiford  <richard.sandiford@arm.com>
1588
1589         PR target/97269
1590         * explow.c (convert_memory_address_addr_space_1): Handle UNSPECs
1591         nested in CONSTs.
1592         * config/aarch64/aarch64.c (aarch64_expand_mov_immediate): Use
1593         convert_memory_address to convert symbolic immediates to ptr_mode
1594         before forcing them to memory.
1595
1596 2021-01-05  Richard Sandiford  <richard.sandiford@arm.com>
1597
1598         PR rtl-optimization/97144
1599         * recog.c (constrain_operands): Initialize matching_operand
1600         for each alternative, rather than only doing it once.
1601
1602 2021-01-05  Richard Sandiford  <richard.sandiford@arm.com>
1603
1604         PR rtl-optimization/98403
1605         * rtl-ssa/changes.cc (function_info::finalize_new_accesses): Explain
1606         why we don't remove call clobbers.
1607         (function_info::apply_changes_to_insn): Don't attempt to add
1608         call clobbers here.
1609
1610 2021-01-05  Richard Sandiford  <richard.sandiford@arm.com>
1611
1612         PR tree-optimization/98371
1613         * tree-vect-loop.c (vect_reanalyze_as_main_loop): New function.
1614         (vect_analyze_loop): If an epilogue loop appears to be cheaper
1615         than the main loop, re-analyze it as a main loop before adopting
1616         it as a main loop.
1617
1618 2021-01-05  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1619
1620         PR c++/98316
1621         * configure.ac (NETLIBS): Determine using AX_LIB_SOCKET_NSL.
1622         * aclocal.m4, configure: Regenerate.
1623         * Makefile.in (NETLIBS): Define.
1624         (BACKEND): Remove $(CODYLIB).
1625
1626 2021-01-05  Jakub Jelinek  <jakub@redhat.com>
1627
1628         PR rtl-optimization/98334
1629         * simplify-rtx.c (simplify_context::simplify_binary_operation_1):
1630         Optimize (X - 1) * Y + Y to X * Y or (X + 1) * Y - Y to X * Y.
1631
1632 2021-01-05  Bernd Edlinger  <bernd.edlinger@hotmail.de>
1633
1634         * tree-inline.c (expand_call_inline): Restore input_location.
1635         Return result from recursive call.
1636
1637 2021-01-04  Richard Sandiford  <richard.sandiford@arm.com>
1638
1639         PR tree-optimization/95401
1640         * config/aarch64/aarch64-sve-builtins.cc
1641         (gimple_folder::load_store_cookie): Use bits rather than bytes
1642         for the alignment argument to IFN_MASK_LOAD and IFN_MASK_STORE.
1643         * gimple-fold.c (gimple_fold_mask_load_store_mem_ref): Likewise.
1644         * tree-vect-stmts.c (vectorizable_store): Likewise.
1645         (vectorizable_load): Likewise.
1646
1647 2021-01-04  Richard Biener  <rguenther@suse.de>
1648
1649         PR tree-optimization/98308
1650         * tree-vect-stmts.c (vectorizable_load): Set invariant mask
1651         SLP vectype.
1652
1653 2021-01-04  Jakub Jelinek  <jakub@redhat.com>
1654
1655         PR tree-optimization/95771
1656         * tree-ssa-loop-niter.c (number_of_iterations_popcount): Handle types
1657         with precision smaller than int's precision and types with precision
1658         twice as large as long long.  Formatting fixes.
1659
1660 2021-01-04  Richard Biener  <rguenther@suse.de>
1661
1662         PR tree-optimization/98464
1663         * tree-ssa-sccvn.c (vn_valueize_for_srt): Rename from ...
1664         (vn_valueize_wrapper): ... this.  Temporarily adjust vn_context_bb.
1665         (process_bb): Adjust.
1666
1667 2021-01-04  Matthew Malcomson  <matthew.malcomson@arm.com>
1668
1669         PR other/98437
1670         * doc/invoke.texi (-fsanitize=address): Fix wording describing
1671         clash with -fsanitize=hwaddress.
1672
1673 2021-01-04  Richard Biener  <rguenther@suse.de>
1674
1675         PR tree-optimization/98282
1676         * tree-ssa-sccvn.c (vn_get_stmt_kind): Classify tcc_reference on
1677         invariants as VN_NARY.
1678
1679 2021-01-04  Richard Sandiford  <richard.sandiford@arm.com>
1680
1681         PR target/89057
1682         * config/aarch64/aarch64-simd.md (aarch64_combine<mode>): Accept
1683         aarch64_simd_reg_or_zero for operand 2.  Use the combinez patterns
1684         to handle zero operands.
1685
1686 2021-01-04  Richard Sandiford  <richard.sandiford@arm.com>
1687
1688         * config/aarch64/aarch64.c (offset_6bit_signed_scaled_p): New function.
1689         (offset_6bit_unsigned_scaled_p): Fix typo in comment.
1690         (aarch64_sve_prefetch_operand_p): Accept MUL VLs in the range
1691         [-32, 31].
1692
1693 2021-01-04  Richard Biener  <rguenther@suse.de>
1694
1695         PR tree-optimization/98393
1696         * tree-vect-slp.c (vect_build_slp_tree): Properly zero matches
1697         when hitting the limit.
1698
1699 2021-01-04  Richard Biener  <rguenther@suse.de>
1700
1701         PR tree-optimization/98291
1702         * tree-vect-loop.c (vectorizable_reduction): Bypass
1703         associativity check for SLP reductions with VF 1.
1704
1705 2021-01-04  Jakub Jelinek  <jakub@redhat.com>
1706
1707         PR tree-optimization/96782
1708         * match.pd (x == ~x -> false, x != ~x -> true): New simplifications.
1709
1710 2021-01-04  Bernd Edlinger  <bernd.edlinger@hotmail.de>
1711
1712         * collect-utils.c (collect_execute): Check dumppfx.
1713         * collect2.c (maybe_run_lto_and_relink, do_link): Pass atsuffix
1714         to collect_execute.
1715         (do_link): Add new parameter atsuffix.
1716         (main): Handle -dumpdir option.  Skip one argument for
1717         -o, -isystem and -B options.
1718         * gcc.c (make_at_file): New helper function.
1719         (close_at_file): Use it.
1720
1721 2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>
1722
1723         * config/darwin.h (MIN_LD64_NO_COAL_SECTS): Adjust.
1724         Amend handling for LD64_VERSION fallback defaults.
1725
1726 2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>
1727
1728         * config.gcc: Compute default version information
1729         from the configured target.  Likewise defaults for
1730         ld64.
1731         * config/darwin10.h: Removed.
1732         * config/darwin12.h: Removed.
1733         * config/darwin9.h: Removed.
1734         * config/rs6000/darwin8.h: Removed.
1735
1736 2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>
1737
1738         * config/darwin9.h (ASM_OUTPUT_ALIGNED_COMMON): Delete.
1739
1740 2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>
1741
1742         * config/darwin9.h (STACK_CHECK_STATIC_BUILTIN): Move from here..
1743         * config/darwin.h (STACK_CHECK_STATIC_BUILTIN): .. to here.
1744
1745 2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>
1746
1747         * config/darwin10.h (LINK_GCC_C_SEQUENCE_SPEC): Move from
1748         here...
1749         * config/darwin.h (LINK_GCC_C_SEQUENCE_SPEC): ... to here.
1750
1751 2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>
1752
1753         * config/darwin10.h (LINK_GCC_C_SEQUENCE_SPEC): Move the spec
1754         for the Darwin10 unwinder stub from here ...
1755         * config/darwin.h (LINK_COMMAND_SPEC_A): ... to here.
1756
1757 2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>
1758
1759         * config/darwin.h (DSYMUTIL_SPEC): Default to DWARF
1760         (ASM_DEBUG_SPEC):Only define if the assembler supports
1761         stabs.
1762         (PREFERRED_DEBUGGING_TYPE): Default to DWARF.
1763         (DARWIN_PREFER_DWARF): Define.
1764         * config/darwin9.h (PREFERRED_DEBUGGING_TYPE): Remove.
1765         (DARWIN_PREFER_DWARF): Likewise
1766         (DSYMUTIL_SPEC): Likewise.
1767         (COLLECT_RUN_DSYMUTIL): Likewise.
1768         (ASM_DEBUG_SPEC): Likewise.
1769         (ASM_DEBUG_OPTION_SPEC): Likewise.
1770
1771 2021-01-02  Jan Hubicka  <jh@suse.cz>
1772
1773         * cfg.c (free_block): ggc_free bb.
1774
1775 2021-01-01  Jakub Jelinek  <jakub@redhat.com>
1776
1777         * gcc.c (process_command): Update copyright notice dates.
1778         * gcov-dump.c (print_version): Ditto.
1779         * gcov.c (print_version): Ditto.
1780         * gcov-tool.c (print_version): Ditto.
1781         * gengtype.c (create_file): Ditto.
1782         * doc/cpp.texi: Bump @copying's copyright year.
1783         * doc/cppinternals.texi: Ditto.
1784         * doc/gcc.texi: Ditto.
1785         * doc/gccint.texi: Ditto.
1786         * doc/gcov.texi: Ditto.
1787         * doc/install.texi: Ditto.
1788         * doc/invoke.texi: Ditto.
1789
1790 2021-01-01  Jakub Jelinek  <jakub@redhat.com>
1791
1792         * ChangeLog-2020: Rotate ChangeLog.  New file.
1793
1794 \f
1795 Copyright (C) 2021 Free Software Foundation, Inc.
1796
1797 Copying and distribution of this file, with or without modification,
1798 are permitted in any medium without royalty provided the copyright
1799 notice and this notice are preserved.