gcc/ChangeLog

   1 2021-01-23  Jakub Jelinek  <jakub@redhat.com>
   2
   3         PR testsuite/97301
   4         * config/rs6000/mmintrin.h (__m64): Add __may_alias__ attribute.
   5
   6 2021-01-22  Jonathan Wright  <jonathan.wright@arm.com>
   7
   8         * config/aarch64/aarch64-simd-builtins.def: Add mla builtin
   9         generator macro.
  10         * config/aarch64/arm_neon.h (vmla_s8): Use RTL builtin rather
  11         than asm.
  12         (vmla_s16): Likewise.
  13         (vmla_s32): Likewise.
  14         (vmla_u8): Likewise.
  15         (vmla_u16): Likewise.
  16         (vmla_u32): Likewise.
  17         (vmlaq_s8): Likewise.
  18         (vmlaq_s16): Likewise.
  19         (vmlaq_s32): Likewise.
  20         (vmlaq_u8): Likewise.
  21         (vmlaq_u16): Likewise.
  22         (vmlaq_u32): Likewise.
  23
  24 2021-01-22  David Malcolm  <dmalcolm@redhat.com>
  25
  26         * doc/invoke.texi (GCC_EXTRA_DIAGNOSTIC_OUTPUT): Add @findex
  27         directive.
  28
  29 2021-01-22  Jakub Jelinek  <jakub@redhat.com>
  30
  31         PR debug/98796
  32         * dwarf2out.c (output_file_names): For -gdwarf-5, if there are no
  33         filenames to emit, still emit the required 0 index directory and
  34         filename entries that match DW_AT_comp_dir and DW_AT_name of the
  35         compilation unit.
  36
  37 2021-01-22  Marek Polacek  <polacek@redhat.com>
  38
  39         PR c++/98545
  40         * doc/invoke.texi: Update C++ ABI Version 15 description.
  41
  42 2021-01-22  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
  43
  44         PR tree-optimization/98766
  45         * tree-ssa-math-opts.c (convert_mult_to_fma): Use maybe_le when
  46         comparing against type size with param_avoid_fma_max_bits.
  47
  48 2021-01-22  Richard Biener  <rguenther@suse.de>
  49
  50         PR middle-end/98793
  51         * tree.c (vector_element_bits): Key single-bit bool vector on
  52         integer mode rather than not vector mode.
  53
  54 2021-01-22  Xionghu Luo  <luoxhu@linux.ibm.com>
  55
  56         PR target/98093
  57         * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin):
  58         Generate ARRAY_REF(VIEW_CONVERT_EXPR) for P8 and later
  59         platforms.
  60         * config/rs6000/rs6000.c (rs6000_expand_vector_set_var): Update
  61         to call different path for P8 and P9.
  62         (rs6000_expand_vector_set_var_p9): New function.
  63         (rs6000_expand_vector_set_var_p8): New function.
  64
  65 2021-01-22  Xionghu Luo  <luoxhu@linux.ibm.com>
  66
  67         PR target/79251
  68         PR target/98065
  69         * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin):
  70         Ajdust variable index vec_insert from address dereference to
  71         ARRAY_REF(VIEW_CONVERT_EXPR) tree expression.
  72         * config/rs6000/rs6000-protos.h (rs6000_expand_vector_set_var):
  73         New declaration.
  74         * config/rs6000/rs6000.c (rs6000_expand_vector_set_var): New function.
  75
  76 2021-01-22  Martin Liska  <mliska@suse.cz>
  77
  78         PR gcov-profile/98739
  79         * profile.c (compute_value_histograms): Drop time profile for
  80         -fprofile-reproducible=multithreaded.
  81
  82 2021-01-22  Nathan Sidwell  <nathan@acm.org>
  83
  84         * gcc.c (process_command): Don't check OPT_SPECIAL_input_file
  85         existence here.
  86
  87 2021-01-22  Richard Biener  <rguenther@suse.de>
  88
  89         PR middle-end/98773
  90         * tree-data-ref.c (initalize_matrix_A): Revert previous
  91         change, retaining failing on HOST_WIDE_INT_MIN CHREC_RIGHT.
  92
  93 2021-01-22  Jakub Jelinek  <jakub@redhat.com>
  94
  95         PR tree-optimization/90248
  96         * match.pd (X cmp 0.0 ? 1.0 : -1.0 -> copysign(1, +-X),
  97         X cmp 0.0 ? -1.0 : +1.0 -> copysign(1, -+X)): Remove
  98         simplifications.
  99         (X * (X cmp 0.0 ? 1.0 : -1.0) -> +-abs(X),
 100         X * (X cmp 0.0 ? -1.0 : 1.0) -> +-abs(X)): New simplifications.
 101
 102 2021-01-22  Jakub Jelinek  <jakub@redhat.com>
 103
 104         PR tree-optimization/98255
 105         * tree-dfa.c (get_ref_base_and_extent): For ARRAY_REFs, sign
 106         extend index - low_bound from sizetype's precision rather than index
 107         precision.
 108         (get_addr_base_and_unit_offset_1): Likewise.
 109         * tree-ssa-sccvn.c (ao_ref_init_from_vn_reference): Likewise.
 110         * gimple-fold.c (fold_const_aggregate_ref_1): Likewise.
 111
 112 2021-01-22  Richard Biener  <rguenther@suse.de>
 113
 114         PR tree-optimization/98786
 115         * tree-ssa-phiopt.c (factor_out_conditional_conversion): Avoid
 116         adding new uses of abnormals.  Verify we deal with a conditional
 117         conversion.
 118
 119 2021-01-22  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
 120
 121         PR target/98636
 122         * optc-save-gen.awk: Add arm_fp16_format to checked_options.
 123
 124 2021-01-22  liuhongt  <hongtao.liu@intel.com>
 125
 126         PR target/96891
 127         PR target/98348
 128         * config/i386/sse.md (VI_128_256): New mode iterator.
 129         (*avx_cmp<mode>3_1, *avx_cmp<mode>3_2, *avx_cmp<mode>3_3,
 130          *avx_cmp<mode>3_4, *avx2_eq<mode>3, *avx2_pcmp<mode>3_1,
 131          *avx2_pcmp<mode>3_2, *avx2_gt<mode>3): New
 132         define_insn_and_split to lower avx512 vector comparison to avx
 133         version when dest is vector.
 134         (*<avx512>_cmp<mode>3,*<avx512>_cmp<mode>3,*<avx512>_ucmp<mode>3):
 135         define_insn_and_split for negating the comparison result.
 136         * config/i386/predicates.md (float_vector_all_ones_operand):
 137         New predicate.
 138         * config/i386/i386-expand.c (ix86_expand_sse_movcc): Use
 139         general NOT operator without UNSPEC_MASKOP.
 140
 141 2021-01-21  Vladimir N. Makarov  <vmakarov@redhat.com>
 142
 143         PR rtl-optimization/98777
 144         * lra-int.h (lra_pmode_pseudo): New extern.
 145         * lra.c (lra_pmode_pseudo): New global.
 146         (lra): Set it up.
 147         * lra-eliminations.c (eliminate_regs_in_insn): Use it.
 148
 149 2021-01-21  Ilya Leoshkevich  <iii@linux.ibm.com>
 150
 151         * fwprop.c (fwprop_propagation::classify_result): Allow
 152         (subreg (mem)) simplifications.
 153
 154 2021-01-21  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 155
 156         * config/aarch64/aarch64-simd.md (aarch64_sqdml<SBINQOPS:as>l<mode>):
 157         Split into...
 158         (aarch64_sqdmlal<mode>): ... This...
 159         (aarch64_sqdmlsl<mode>): ... And this.
 160         (aarch64_sqdml<SBINQOPS:as>l_lane<mode>): Split into...
 161         (aarch64_sqdmlal_lane<mode>): ... This...
 162         (aarch64_sqdmlsl_lane<mode>): ... And this.
 163         (aarch64_sqdml<SBINQOPS:as>l_laneq<mode>): Split into...
 164         (aarch64_sqdmlsl_laneq<mode>): ... This...
 165         (aarch64_sqdmlal_laneq<mode>):  ... And this.
 166         (aarch64_sqdml<SBINQOPS:as>l_n<mode>): Split into...
 167         (aarch64_sqdmlsl_n<mode>): ... This...
 168         (aarch64_sqdmlal_n<mode>): ... And this.
 169         (aarch64_sqdml<SBINQOPS:as>l2<mode>_internal): Split into...
 170         (aarch64_sqdmlal2<mode>_internal): ... This...
 171         (aarch64_sqdmlsl2<mode>_internal): ... And this.
 172
 173 2021-01-21  Christophe Lyon  <christophe.lyon@linaro.org>
 174
 175         * config/arm/arm_mve.h (__arm_vcmpneq_s8): Fix return type.
 176
 177 2021-01-21  Andrea Corallo  <andrea.corallo@arm.com>
 178
 179         PR target/96372
 180         * doc/sourcebuild.texi (arm_thumb2_no_arm_v8_1_lob): Document.
 181
 182 2021-01-21  liuhongt  <hongtao.liu@intel.com>
 183
 184         PR rtl-optimization/98694
 185         * regcprop.c (copy_value): If SRC had been assigned a mode
 186         narrower than the copy, we can't link DEST into the chain even
 187         they have same hard_regno_nregs(i.e. HImode/SImode in i386
 188         backend).
 189
 190 2021-01-20  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 191
 192         * config/aarch64/aarch64-simd.md (aarch64_get_lane<mode>):
 193         Convert to define_insn_and_split.  Split into simple move when moving
 194         bottom element.
 195
 196 2021-01-20  Segher Boessenkool  <segher@kernel.crashing.org>
 197
 198         * config/rs6000/rs6000.c (rs6000_emit_le_vsx_store): Change assert.
 199         Adjust comment.  Simplify code.
 200
 201 2021-01-20  Jakub Jelinek  <jakub@redhat.com>
 202
 203         PR debug/98765
 204         * dwarf2out.c (reset_indirect_string): Also reset indirect strings
 205         with DW_FORM_line_strp form.
 206         (prune_unused_types_update_strings): Don't add into debug_str_hash
 207         indirect strings with DW_FORM_line_strp form.
 208         (adjust_name_comp_dir): New function.
 209         (dwarf2out_finish): Call it on CU DIEs after resetting
 210         debug_line_str_hash.
 211
 212 2021-01-20  Vladimir N. Makarov  <vmakarov@redhat.com>
 213
 214         PR rtl-optimization/98722
 215         * lra-eliminations.c (eliminate_regs_in_insn): Check that target
 216         has no 3-op add insn to transform insns containing two pluses.
 217
 218 2021-01-20  Richard Biener  <rguenther@suse.de>
 219
 220         * hwint.h (add_hwi): New function.
 221         (mul_hwi): Likewise.
 222         * tree-data-ref.c (initialize_matrix_A): Properly translate
 223         tree constants and avoid HOST_WIDE_INT_MIN.
 224         (lambda_matrix_row_add): Avoid undefined integer overflow
 225         and return true on such overflow.
 226         (lambda_matrix_right_hermite): Handle overflow from
 227         lambda_matrix_row_add gracefully.  Simplify previous fix.
 228         (analyze_subscript_affine_affine): Likewise.
 229
 230 2021-01-20  Eugene Rozenfeld  <erozen@microsoft.com>
 231
 232         PR tree-optimization/96674
 233         * match.pd: New patterns: x < y || y == XXX_MIN --> x <= y - 1
 234         x >= y && y != XXX_MIN --> x > y - 1
 235
 236 2021-01-20  Richard Sandiford  <richard.sandiford@arm.com>
 237
 238         PR tree-optimization/98535
 239         * tree-vect-slp.c (duplicate_and_interleave): Use quick_grow_cleared.
 240         If the high and low permutes are the same, remove the high permutes
 241         from the working set and only continue with the low ones.
 242
 243 2021-01-20  Jakub Jelinek  <jakub@redhat.com>
 244
 245         PR tree-optimization/98721
 246         * builtins.c (access_ref::inform_access): Don't assume
 247         SSA_NAME_IDENTIFIER must be non-NULL.  Print messages about
 248         object whenever allocfn is NULL, rather than only when DECL_P
 249         is true.  Use %qE instead of %qD for that.  Formatting fixes.
 250
 251 2021-01-20  Richard Biener  <rguenther@suse.de>
 252
 253         PR tree-optimization/98758
 254         * tree-data-ref.c (int_divides_p): Use lambda_int arguments.
 255         (lambda_matrix_right_hermite): Avoid undefinedness with
 256         signed integer abs and multiplication.
 257         (analyze_subscript_affine_affine): Use lambda_int.
 258
 259 2021-01-20  David Malcolm  <dmalcolm@redhat.com>
 260
 261         PR debug/98751
 262         * dwarf2out.c (output_line_info): Rename static variable
 263         "generation", moving it out of the function to...
 264         (output_line_info_generation): New.
 265         (init_sections_and_labels): Likewise, renaming the variable to...
 266         (init_sections_and_labels_generation): New.
 267         (dwarf2out_c_finalize): Reset the new variables.
 268
 269 2021-01-19  Martin Sebor  <msebor@redhat.com>
 270
 271         PR middle-end/98664
 272         * tree-ssa-live.c (remove_unused_scope_block_p): Keep scopes for
 273         all functions, even if they're not declared artificial or inline.
 274         * tree.c (tree_inlined_location): Use macro expansion location
 275         only if scope traversal fails to expose one.
 276
 277 2021-01-19  Richard Sandiford  <richard.sandiford@arm.com>
 278
 279         PR rtl-optimization/92294
 280         * alias.c (compare_base_symbol_refs): Take an extra parameter
 281         and add the distance between two symbols to it.  Enshrine in
 282         comments that -1 means "either 0 or 1, but we can't tell
 283         which at compile time".
 284         (memrefs_conflict_p): Update call accordingly.
 285         (rtx_equal_for_memref_p): Likewise.  Take the distance between symbols
 286         into account.
 287
 288 2021-01-19  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 289
 290         * config/aarch64/aarch64-simd-builtins.def (sqshl, uqshl,
 291         sqrshl, uqrshl, sqadd, uqadd, sqsub, uqsub, suqadd, usqadd, sqmovn,
 292         uqmovn, sqxtn2, uqxtn2, sqabs, sqneg, sqdmlal, sqdmlsl, sqdmlal_lane,
 293         sqdmlsl_lane, sqdmlal_laneq, sqdmlsl_laneq, sqdmlal_n, sqdmlsl_n,
 294         sqdmlal2, sqdmlsl2, sqdmlal2_lane, sqdmlsl2_lane, sqdmlal2_laneq,
 295         sqdmlsl2_laneq, sqdmlal2_n, sqdmlsl2_n, sqdmull, sqdmull_lane,
 296         sqdmull_laneq, sqdmull_n, sqdmull2, sqdmull2_lane, sqdmull2_laneq,
 297         sqdmull2_n, sqdmulh, sqrdmulh, sqdmulh_lane, sqdmulh_laneq,
 298         sqrdmulh_lane, sqrdmulh_laneq, sqshrun_n, sqrshrun_n, sqshrn_n,
 299         uqshrn_n, sqrshrn_n, uqrshrn_n, sqshlu_n, sqshl_n, uqshl_n, sqrdmlah,
 300         sqrdmlsh, sqrdmlah_lane, sqrdmlsh_lane, sqrdmlah_laneq, sqrdmlsh_laneq,
 301         sqmovun): Use NONE flags.
 302
 303 2021-01-19  Richard Biener  <rguenther@suse.de>
 304
 305         PR ipa/98330
 306         * ipa-modref.c (analyze_stmt): Only record a summary for a
 307         direct call.
 308
 309 2021-01-19  Richard Biener  <rguenther@suse.de>
 310
 311         PR middle-end/98638
 312         * tree-ssanames.c (fini_ssanames): Zero SSA_NAME_DEF_STMT.
 313
 314 2021-01-19  Daniel Hellstrom  <daniel@gaisler.com>
 315
 316         * config/sparc/rtemself.h (TARGET_OS_CPP_BUILTINS): Add
 317         built-in define __FIX_LEON3FT_TN0018.
 318
 319 2021-01-19  Richard Biener  <rguenther@suse.de>
 320
 321         PR ipa/97673
 322         * tree-inline.c (tree_function_versioning): Set input_location
 323         to UNKNOWN_LOCATION throughout the function.
 324
 325 2021-01-19  Tobias Burnus  <tobias@codesourcery.com>
 326
 327         PR fortran/98476
 328         * omp-low.c (lower_omp_target): Handle nonpointer is_device_ptr.
 329
 330 2021-01-19  Martin Jambor  <mjambor@suse.cz>
 331
 332         PR ipa/98690
 333         * ipa-sra.c (ssa_name_only_returned_p): New parameter fun.  Check
 334         whether non-call exceptions allow removal of a statement.
 335         (isra_analyze_call): Pass the appropriate function to
 336         ssa_name_only_returned_p.
 337
 338 2021-01-19  Geng Qi  <gengqi@linux.alibaba.com>
 339
 340         * config/riscv/arch-canonicalize (longext_sort): New function for
 341          sorting 'multi-letter'.
 342         * config/riscv/multilib-generator: Adjusting the loop of 'alt' in
 343         'alts'. The 'arch' may not be the first of 'alts'.
 344         (_expand_combination): Add underline for the 'ext' without '*'.
 345         This is because, a single-letter extension can always be treated well
 346         with a '_' prefix, but it cannot be separated out if it is appended
 347         to a multi-letter.
 348
 349 2021-01-18  Vladimir N. Makarov  <vmakarov@redhat.com>
 350
 351         PR target/97847
 352         * ira.c (ira): Skip abnormal critical edge splitting.
 353
 354 2021-01-18  Jakub Jelinek  <jakub@redhat.com>
 355
 356         PR tree-optimization/98727
 357         * tree-ssa-math-opts.c (match_arith_overflow): Fix up computation of
 358         second .MUL_OVERFLOW operand for signed multiplication with overflow
 359         checking if the second operand of multiplication is not constant.
 360
 361 2021-01-18  David Edelsohn  <dje.gcc@gmail.com>
 362
 363         * doc/invoke.texi (-gdwarf): TPF defaults to version 2 and AIX
 364         defaults to version 4.
 365
 366 2021-01-18  David Malcolm  <dmalcolm@redhat.com>
 367
 368         * attribs.h (fndecl_dealloc_argno): New decl.
 369         * builtins.c (call_dealloc_argno): Split out second half of
 370         function into...
 371         (fndecl_dealloc_argno): New.
 372         * doc/extend.texi (Common Function Attributes): Document the
 373         interaction between the analyzer and the malloc attribute.
 374         * doc/invoke.texi (Static Analyzer Options): Likewise.
 375
 376 2021-01-17  David Edelsohn  <dje.gcc@gmail.com>
 377
 378         * config/rs6000/aix71.h (SUBTARGET_OVERRIDE_OPTIONS): Override
 379         dwarf_version to 4.
 380         * config/rs6000/aix72.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
 381
 382 2021-01-17  Martin Jambor  <mjambor@suse.cz>
 383
 384         PR ipa/98222
 385         * cgraph.c (clone_of_p): Check also former_clone_of as we climb
 386         the clone tree.
 387
 388 2021-01-17  Mark Wielaard  <mark@klomp.org>
 389
 390         * common.opt (gdwarf-): Init(5).
 391         * doc/invoke.texi (-gdwarf): Document default to 5.
 392
 393 2021-01-16  Kwok Cheung Yeung  <kcy@codesourcery.com>
 394
 395         * builtin-types.def
 396         (BT_FN_VOID_OMPFN_PTR_OMPCPYFN_LONG_LONG_BOOL_UINT_PTR_INT): Rename
 397         to...
 398         (BT_FN_VOID_OMPFN_PTR_OMPCPYFN_LONG_LONG_BOOL_UINT_PTR_INT_PTR):
 399         ...this.  Add extra argument.
 400         * gimplify.c (omp_default_clause): Ensure that event handle is
 401         firstprivate in a task region.
 402         (gimplify_scan_omp_clauses): Handle OMP_CLAUSE_DETACH.
 403         (gimplify_adjust_omp_clauses): Likewise.
 404         * omp-builtins.def (BUILT_IN_GOMP_TASK): Change function type to
 405         BT_FN_VOID_OMPFN_PTR_OMPCPYFN_LONG_LONG_BOOL_UINT_PTR_INT_PTR.
 406         * omp-expand.c (expand_task_call): Add GOMP_TASK_FLAG_DETACH to flags
 407         if detach clause specified.  Add detach argument when generating
 408         call to GOMP_task.
 409         * omp-low.c (scan_sharing_clauses): Setup data environment for detach
 410         clause.
 411         (finish_taskreg_scan): Move field for variable containing the event
 412         handle to the front of the struct.
 413         * tree-core.h (enum omp_clause_code): Add OMP_CLAUSE_DETACH.  Fix
 414         ordering.
 415         * tree-nested.c (convert_nonlocal_omp_clauses): Handle
 416         OMP_CLAUSE_DETACH clause.
 417         (convert_local_omp_clauses): Handle OMP_CLAUSE_DETACH clause.
 418         * tree-pretty-print.c (dump_omp_clause): Handle OMP_CLAUSE_DETACH.
 419         * tree.c (omp_clause_num_ops): Add entry for OMP_CLAUSE_DETACH.
 420         Fix ordering.
 421         (omp_clause_code_name): Add entry for OMP_CLAUSE_DETACH.  Fix
 422         ordering.
 423         (walk_tree_1): Handle OMP_CLAUSE_DETACH.
 424
 425 2021-01-16  Sebastian Huber  <sebastian.huber@embedded-brains.de>
 426
 427         * config/nios2/t-rtems: Reset all MULTILIB_* variables.  Shorten
 428         multilib directory names.  Use MULTILIB_REQUIRED instead of
 429         MULTILIB_EXCEPTIONS.  Add -mhw-mul -mhw-mulx -mhw-div
 430         -mcustom-fpu-cfg=fph2 multilib.
 431
 432 2021-01-16  Sebastian Huber  <sebastian.huber@embedded-brains.de>
 433
 434         * config/nios2/nios2.c (NIOS2_FPU_CONFIG_NUM): Adjust value.
 435         (nios2_init_fpu_configs): Provide register values for new
 436         -mcustom-fpu-cfg=fph2 option variant.
 437         * doc/invoke.texi (-mcustom-fpu-cfg=fph2): Document new option
 438         variant.
 439
 440 2021-01-16  Sebastian Huber  <sebastian.huber@embedded-brains.de>
 441
 442         * config/nios2/nios2.c (nios2_custom_check_insns): Remove
 443         custom instruction warnings.
 444
 445 2021-01-16  Jakub Jelinek  <jakub@redhat.com>
 446
 447         PR tree-optimization/96669
 448         * match.pd ((CST << x) & 1 -> x == 0): New simplification.
 449
 450 2021-01-16  Jakub Jelinek  <jakub@redhat.com>
 451
 452         PR tree-optimization/96271
 453         * passes.def: Pass false argument to first two pass_cd_dce
 454         instances and true to last instance.  Add comment that
 455         last instance rewrites no longer addressed locals.
 456         * tree-ssa-dce.c (pass_cd_dce): Add update_address_taken_p member and
 457         initialize it.
 458         (pass_cd_dce::set_pass_param): New method.
 459         (pass_cd_dce::execute): Return TODO_update_address_taken from
 460         last cd_dce instance.
 461
 462 2021-01-15  Carl Love  <cel@us.ibm.com>
 463
 464         * config/rs6000/altivec.h (vec_mulh, vec_div, vec_dive, vec_mod):
 465         New defines.
 466         * config/rs6000/altivec.md (VIlong): Move define to file vsx.md.
 467         * config/rs6000/rs6000-builtin.def (DIVES_V4SI, DIVES_V2DI,
 468         DIVEU_V4SI, DIVEU_V2DI, DIVS_V4SI, DIVS_V2DI, DIVU_V4SI,
 469         DIVU_V2DI, MODS_V2DI, MODS_V4SI, MODU_V2DI, MODU_V4SI,
 470         MULHS_V2DI, MULHS_V4SI, MULHU_V2DI, MULHU_V4SI, MULLD_V2DI):
 471         Add builtin define.
 472         (MULH, DIVE, MOD):  Add new BU_P10_OVERLOAD_2 definitions.
 473         * config/rs6000/rs6000-call.c (VSX_BUILTIN_VEC_DIV,
 474         VSX_BUILTIN_VEC_DIVE, P10_BUILTIN_VEC_MOD, P10_BUILTIN_VEC_MULH):
 475         New overloaded definitions.
 476         (builtin_function_type) [P10V_BUILTIN_DIVEU_V4SI,
 477         P10V_BUILTIN_DIVEU_V2DI, P10V_BUILTIN_DIVU_V4SI,
 478         P10V_BUILTIN_DIVU_V2DI, P10V_BUILTIN_MODU_V2DI,
 479         P10V_BUILTIN_MODU_V4SI, P10V_BUILTIN_MULHU_V2DI,
 480         P10V_BUILTIN_MULHU_V4SI]: Add case
 481         statement for builtins.
 482         * config/rs6000/rs6000.md (bits): Add new attribute sizes V4SI, V2DI.
 483         * config/rs6000/vsx.md (VIlong): Moved from config/rs6000/altivec.md.
 484         (UNSPEC_VDIVES, UNSPEC_VDIVEU): New unspec definitions.
 485         (vsx_mul_v2di): Add if TARGET_POWER10 statement.
 486         (vsx_udiv_v2di): Add if TARGET_POWER10 statement.
 487         (dives_<mode>, diveu_<mode>, div<mode>3, uvdiv<mode>3,
 488         mods_<mode>, modu_<mode>, mulhs_<mode>, mulhu_<mode>, mulv2di3):
 489         Add define_insn, mode is VIlong.
 490         * doc/extend.texi (vec_mulh, vec_mul, vec_div, vec_dive, vec_mod):
 491         Add builtin descriptions.
 492
 493 2021-01-15  Eric Botcazou  <ebotcazou@adacore.com>
 494
 495         * final.c (final_start_function_1): Reset force_source_line.
 496
 497 2021-01-15  Jakub Jelinek  <jakub@redhat.com>
 498
 499         PR tree-optimization/96669
 500         * match.pd (((1 << A) & 1) != 0 -> A == 0,
 501         ((1 << A) & 1) == 0 -> A != 0): Generalize for 1s replaced by
 502         possibly different power of two constants and to right shift too.
 503
 504 2021-01-15  Jakub Jelinek  <jakub@redhat.com>
 505
 506         PR tree-optimization/96681
 507         * match.pd ((x < 0) ^ (y < 0) to (x ^ y) < 0): New simplification.
 508         ((x >= 0) ^ (y >= 0) to (x ^ y) < 0): Likewise.
 509         ((x < 0) ^ (y >= 0) to (x ^ y) >= 0): Likewise.
 510         ((x >= 0) ^ (y < 0) to (x ^ y) >= 0): Likewise.
 511
 512 2021-01-15  Alexandre Oliva  <oliva@adacore.com>
 513
 514         * opts.c (gen_command_line_string): Exclude -dumpbase-ext.
 515
 516 2021-01-15  Tamar Christina  <tamar.christina@arm.com>
 517
 518         * config/aarch64/aarch64-simd.md (cml<fcmac1><conj_op><mode>4,
 519         cmul<conj_op><mode>3): New.
 520         * config/aarch64/iterators.md (UNSPEC_FCMUL,
 521         UNSPEC_FCMUL180, UNSPEC_FCMLA_CONJ, UNSPEC_FCMLA180_CONJ,
 522         UNSPEC_CMLA_CONJ, UNSPEC_CMLA180_CONJ, UNSPEC_CMUL, UNSPEC_CMUL180,
 523         FCMLA_OP, FCMUL_OP, conj_op, rotsplit1, rotsplit2, fcmac1, sve_rot1,
 524         sve_rot2, SVE2_INT_CMLA_OP, SVE2_INT_CMUL_OP, SVE2_INT_CADD_OP): New.
 525         (rot): Add UNSPEC_FCMUL, UNSPEC_FCMUL180.
 526         (rot_op): Renamed to conj_op.
 527         * config/aarch64/aarch64-sve.md (cml<fcmac1><conj_op><mode>4,
 528         cmul<conj_op><mode>3): New.
 529         * config/aarch64/aarch64-sve2.md (cml<fcmac1><conj_op><mode>4,
 530         cmul<conj_op><mode>3): New.
 531
 532 2021-01-15  David Malcolm  <dmalcolm@redhat.com>
 533
 534         PR bootstrap/98696
 535         * diagnostic.c
 536         (selftest::test_print_parseable_fixits_bytes_vs_display_columns):
 537         Escape the tempfile name when constructing the expected output.
 538
 539 2021-01-15  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 540
 541         * config/aarch64/aarch64-simd.md (*aarch64_<su>mlsl_hi<mode>):
 542         Rename to...
 543         (aarch64_<su>mlsl_hi<mode>): ... This.
 544         (aarch64_<su>mlsl_hi<mode>): Define.
 545         (*aarch64_<su>mlsl<mode): Rename to...
 546         (aarch64_<su>mlsl<mode): ... This.
 547         * config/aarch64/aarch64-simd-builtins.def (smlsl, umlsl,
 548         smlsl_hi, umlsl_hi): Define builtins.
 549         * config/aarch64/arm_neon.h (vmlsl_high_s8, vmlsl_high_s16,
 550         vmlsl_high_s32, vmlsl_high_u8, vmlsl_high_u16, vmlsl_high_u32,
 551         vmlsl_s8, vmlsl_s16, vmlsl_s32, vmlsl_u8,
 552         vmlsl_u16, vmlsl_u32): Reimplement with builtins.
 553
 554 2021-01-15  Uroš Bizjak  <ubizjak@gmail.com>
 555
 556         * config/i386/i386-c.c (ix86_target_macros):
 557         Use cpp_define_formatted for __SIZEOF_FLOAT80__ definition.
 558
 559 2021-01-15  Richard Sandiford  <richard.sandiford@arm.com>
 560
 561         PR target/88836
 562         * config.gcc (aarch64*-*-*): Add aarch64-cc-fusion.o to extra_objs.
 563         * Makefile.in (RTL_SSA_H): New variable.
 564         * config/aarch64/t-aarch64 (aarch64-cc-fusion.o): New rule.
 565         * config/aarch64/aarch64-protos.h (make_pass_cc_fusion): Declare.
 566         * config/aarch64/aarch64-passes.def: Add pass_cc_fusion after
 567         pass_combine.
 568         * config/aarch64/aarch64-cc-fusion.cc: New file.
 569
 570 2021-01-15  Richard Sandiford  <richard.sandiford@arm.com>
 571
 572         * recog.h (insn_change_watermark::~insn_change_watermark): Avoid
 573         calling cancel_changes for changes that no longer exist.
 574
 575 2021-01-15  Richard Sandiford  <richard.sandiford@arm.com>
 576
 577         * rtl-ssa/functions.h (function_info::ref_defs): Rename to...
 578         (function_info::reg_defs): ...this.
 579         * rtl-ssa/member-fns.inl (function_info::ref_defs): Rename to...
 580         (function_info::reg_defs): ...this.
 581
 582 2021-01-15  Christophe Lyon  <christophe.lyon@linaro.org>
 583
 584         PR target/71233
 585         * config/arm/arm_neon.h (vceqz_p64, vceqq_p64, vceqzq_p64): New.
 586
 587 2021-01-15  Christophe Lyon  <christophe.lyon@linaro.org>
 588
 589         Revert:
 590         2021-01-15  Christophe Lyon  <christophe.lyon@linaro.org>
 591
 592         PR target/71233
 593         * config/arm/arm_neon.h (vceqz_p64, vceqq_p64, vceqzq_p64): New.
 594
 595 2021-01-15  Richard Biener  <rguenther@suse.de>
 596
 597         PR tree-optimization/96376
 598         * tree-vect-stmts.c (get_load_store_type): Disregard alignment
 599         for VMAT_INVARIANT.
 600
 601 2021-01-15  Martin Liska  <mliska@suse.cz>
 602
 603         * doc/install.texi: Document that some tests need pytest module.
 604         * doc/sourcebuild.texi: Likewise.
 605
 606 2021-01-15  Christophe Lyon  <christophe.lyon@linaro.org>
 607
 608         PR target/71233
 609         * config/arm/arm_neon.h (vceqz_p64, vceqq_p64, vceqzq_p64): New.
 610
 611 2021-01-15  Christophe Lyon  <christophe.lyon@linaro.org>
 612
 613         * config/arm/mve.md (mve_vshrq_n_s<mode>_imm): New entry.
 614         (mve_vshrq_n_u<mode>_imm): Likewise.
 615         * config/arm/neon.md (vashr<mode>3, vlshr<mode>3): Move to ...
 616         * config/arm/vec-common.md: ... here.
 617
 618 2021-01-15  Christophe Lyon  <christophe.lyon@linaro.org>
 619
 620         * config/arm/mve.md (mve_vshlq_<supf><mode>): Move to
 621         vec-commond.md.
 622         * config/arm/neon.md (vashl<mode>3): Delete.
 623         * config/arm/vec-common.md (mve_vshlq_<supf><mode>): New.
 624         (vasl<mode>3): New expander.
 625
 626 2021-01-15  Richard Biener  <rguenther@suse.de>
 627
 628         PR tree-optimization/98685
 629         * tree-vect-slp.c (vect_schedule_slp_node): Refactor handling
 630         of vector extern defs.
 631
 632 2021-01-14  David Malcolm  <dmalcolm@redhat.com>
 633
 634         PR jit/98586
 635         * diagnostic.c (diagnostic_kind_text): Break out this array
 636         from...
 637         (diagnostic_build_prefix): ...here.
 638         (fancy_abort): Detect when diagnostic_initialize has not yet been
 639         called and fall back to a minimal implementation of printing the
 640         ICE, rather than segfaulting in internal_error.
 641
 642 2021-01-14  David Malcolm  <dmalcolm@redhat.com>
 643
 644         * diagnostic.c (diagnostic_initialize): Eliminate
 645         parseable_fixits_p in favor of initializing extra_output_kind from
 646         GCC_EXTRA_DIAGNOSTIC_OUTPUT.
 647         (convert_column_unit): New function, split out from...
 648         (diagnostic_converted_column): ...this.
 649         (print_parseable_fixits): Add "column_unit" and "tabstop" params.
 650         Use them to call convert_column_unit on the column values.
 651         (diagnostic_report_diagnostic): Eliminate conditional on
 652         parseable_fixits_p in favor of a switch statement on
 653         extra_output_kind, passing the appropriate values to the new
 654         params of print_parseable_fixits.
 655         (selftest::test_print_parseable_fixits_none): Update for new
 656         params of print_parseable_fixits.
 657         (selftest::test_print_parseable_fixits_insert): Likewise.
 658         (selftest::test_print_parseable_fixits_remove): Likewise.
 659         (selftest::test_print_parseable_fixits_replace): Likewise.
 660         (selftest::test_print_parseable_fixits_bytes_vs_display_columns):
 661         New.
 662         (selftest::diagnostic_c_tests): Call it.
 663         * diagnostic.h (enum diagnostics_extra_output_kind): New.
 664         (diagnostic_context::parseable_fixits_p): Delete field in favor
 665         of...
 666         (diagnostic_context::extra_output_kind): ...this new field.
 667         * doc/invoke.texi (Environment Variables): Add
 668         GCC_EXTRA_DIAGNOSTIC_OUTPUT.
 669         * opts.c (common_handle_option): Update handling of
 670         OPT_fdiagnostics_parseable_fixits for change to diagnostic_context
 671         fields.
 672
 673 2021-01-14  Tamar Christina  <tamar.christina@arm.com>
 674
 675         * tree-vect-slp-patterns.c (class complex_operations_pattern,
 676         complex_operations_pattern::matches,
 677         complex_operations_pattern::recognize,
 678         complex_operations_pattern::build): New.
 679         (slp_patterns): Use it.
 680
 681 2021-01-14  Tamar Christina  <tamar.christina@arm.com>
 682
 683         * internal-fn.def (COMPLEX_FMS, COMPLEX_FMS_CONJ): New.
 684         * optabs.def (cmls_optab, cmls_conj_optab): New.
 685         * doc/md.texi: Document them.
 686         * tree-vect-slp-patterns.c (class complex_fms_pattern,
 687         complex_fms_pattern::matches, complex_fms_pattern::recognize,
 688         complex_fms_pattern::build): New.
 689
 690 2021-01-14  Tamar Christina  <tamar.christina@arm.com>
 691
 692         * internal-fn.def (COMPLEX_FMA, COMPLEX_FMA_CONJ): New.
 693         * optabs.def (cmla_optab, cmla_conj_optab): New.
 694         * doc/md.texi: Document them.
 695         * tree-vect-slp-patterns.c (vect_match_call_p,
 696         class complex_fma_pattern, vect_slp_reset_pattern,
 697         complex_fma_pattern::matches, complex_fma_pattern::recognize,
 698         complex_fma_pattern::build): New.
 699
 700 2021-01-14  Tamar Christina  <tamar.christina@arm.com>
 701
 702         * internal-fn.def (COMPLEX_MUL, COMPLEX_MUL_CONJ): New.
 703         * optabs.def (cmul_optab, cmul_conj_optab): New.
 704         * doc/md.texi: Document them.
 705         * tree-vect-slp-patterns.c (vect_match_call_complex_mla,
 706         vect_normalize_conj_loc, is_eq_or_top, vect_validate_multiplication,
 707         vect_build_combine_node, class complex_mul_pattern,
 708         complex_mul_pattern::matches, complex_mul_pattern::recognize,
 709         complex_mul_pattern::build): New.
 710
 711 2021-01-14  Tamar Christina  <tamar.christina@arm.com>
 712
 713         * tree-vect-slp.c (optimize_load_redistribution_1): New.
 714         (optimize_load_redistribution, vect_is_slp_load_node): New.
 715         (vect_match_slp_patterns): Use it.
 716
 717 2021-01-14  Tamar Christina  <tamar.christina@arm.com>
 718
 719         * tree-vect-slp-patterns.c (complex_add_pattern::build):
 720         Elide nodes.
 721
 722 2021-01-14  Thomas Schwinge  <thomas@codesourcery.com>
 723
 724         * config/gcn/mkoffload.c (main): Create an offload image only in
 725         64-bit configurations.
 726
 727 2021-01-14  H.J. Lu  <hjl.tools@gmail.com>
 728
 729         PR target/98667
 730         * config/i386/i386-options.c (ix86_option_override_internal):
 731         Issue an error for -fcf-protection with CF_BRANCH when compiling
 732         for 32-bit non-TARGET_CMOV targets.
 733
 734 2021-01-14  Uroš Bizjak  <ubizjak@gmail.com>
 735
 736         PR target/98671
 737         * config/i386/i386-options.c (ix86_valid_target_attribute_inner_p):
 738         Remove declaration and initialization of shadow variable "ret".
 739         (ix86_option_override_internal): Remove delcaration of
 740         shadow variable "i".  Redeclare shadowed variable to unsigned.
 741         * common/config/i386/i386-common.c (pta_size): Redeclare to unsigned.
 742         * config/i386/i386-builtins.c (get_builtin_code_for_version):
 743         Update for redeclaration.
 744         * config/i386/i386.h (pta_size): Ditto.
 745
 746 2021-01-14  Richard Biener  <rguenther@suse.de>
 747
 748         PR tree-optimization/98674
 749         * tree-data-ref.c (base_supports_access_fn_components_p): New.
 750         (initialize_data_dependence_relation): For two bases without
 751         possible access fns resort to type size equality when determining
 752         shape compatibility.
 753
 754 2021-01-14  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
 755
 756         PR target/66791
 757         * config/arm/arm_neon.h: Replace calls to __builtin_vcge* by
 758         <=, >= operators in vcle and vcge intrinsics respectively.
 759         * config/arm/arm_neon_builtins.def: Remove entry for
 760         vcge and vcgeu.
 761
 762 2021-01-14  Uroš Bizjak  <ubizjak@gmail.com>
 763
 764         PR target/98671
 765         * config/i386/i386-options.c (ix86_function_specific_save):
 766         Remove redundant assignment to opts->x_ix86_branch_cost.
 767         * config/i386/i386.c (ix86_prefetch_sse):
 768         Rename from x86_prefetch_sse.  Update all uses.
 769         * config/i386/i386.h: Update for rename.
 770         * config/i386/i386-options.h: Ditto.
 771
 772 2021-01-14  Jakub Jelinek  <jakub@redhat.com>
 773
 774         PR target/98670
 775         * config/i386/sse.md (*sse4_1_zero_extendv8qiv8hi2_3,
 776         *sse4_1_zero_extendv4hiv4si2_3, *sse4_1_zero_extendv2siv2di2_3):
 777         Use Bm instead of m for non-avx.  Add isa attribute.
 778
 779 2021-01-14  Jakub Jelinek  <jakub@redhat.com>
 780
 781         PR tree-optimization/96688
 782         * match.pd (~(X >> Y) -> ~X >> Y): New simplification if
 783         ~X can be simplified.
 784
 785 2021-01-14  Richard Sandiford  <richard.sandiford@arm.com>
 786
 787         * tree-vect-stmts.c (vect_model_load_cost): Account for unused
 788         IFN_LOAD_LANES results.
 789
 790 2021-01-14  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 791
 792         * config/aarch64/aarch64-simd.md (aarch64_<su>xtl<mode>):
 793         Define.
 794         (aarch64_xtn<mode>): Likewise.
 795         * config/aarch64/aarch64-simd-builtins.def (sxtl, uxtl, xtn):
 796         Define
 797         builtins.
 798         * config/aarch64/arm_neon.h (vmovl_s8): Reimplement using
 799         builtin.
 800         (vmovl_s16): Likewise.
 801         (vmovl_s32): Likewise.
 802         (vmovl_u8): Likewise.
 803         (vmovl_u16): Likewise.
 804         (vmovl_u32): Likewise.
 805         (vmovn_s16): Likewise.
 806         (vmovn_s32): Likewise.
 807         (vmovn_s64): Likewise.
 808         (vmovn_u16): Likewise.
 809         (vmovn_u32): Likewise.
 810         (vmovn_u64): Likewise.
 811
 812 2021-01-14  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 813
 814         * config/aarch64/aarch64-simd.md (aarch64_<su>qxtn2<mode>_le):
 815         Define.
 816         (aarch64_<su>qxtn2<mode>_be): Likewise.
 817         (aarch64_<su>qxtn2<mode>): Likewise.
 818         * config/aarch64/aarch64-simd-builtins.def (sqxtn2, uqxtn2):
 819         Define builtins.
 820         * config/aarch64/iterators.md (SAT_TRUNC): Define code_iterator.
 821         (su): Handle ss_truncate and us_truncate.
 822         * config/aarch64/arm_neon.h (vqmovn_high_s16): Reimplement using
 823         builtin.
 824         (vqmovn_high_s32): Likewise.
 825         (vqmovn_high_s64): Likewise.
 826         (vqmovn_high_u16): Likewise.
 827         (vqmovn_high_u32): Likewise.
 828         (vqmovn_high_u64): Likewise.
 829
 830 2021-01-14  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 831
 832         * config/aarch64/aarch64-simd.md (aarch64_xtn2<mode>_le):
 833         Define.
 834         (aarch64_xtn2<mode>_be): Likewise.
 835         (aarch64_xtn2<mode>): Likewise.
 836         * config/aarch64/aarch64-simd-builtins.def (xtn2): Define
 837         builtins.
 838         * config/aarch64/arm_neon.h (vmovn_high_s16): Reimplement using
 839         builtins.
 840         (vmovn_high_s32): Likewise.
 841         (vmovn_high_s64): Likewise.
 842         (vmovn_high_u16): Likewise.
 843         (vmovn_high_u32): Likewise.
 844         (vmovn_high_u64): Likewise.
 845
 846 2021-01-13  Stafford Horne  <shorne@gmail.com>
 847
 848         * config/or1k/or1k.h (ASM_PREFERRED_EH_DATA_FORMAT): New macro.
 849
 850 2021-01-13  Stafford Horne  <shorne@gmail.com>
 851
 852         * config/or1k/linux.h (TARGET_ASM_FILE_END): Define macro.
 853
 854 2021-01-13  Stafford Horne  <shorne@gmail.com>
 855
 856         * config/or1k/or1k.h (TARGET_CPU_CPP_BUILTINS): Add builtin
 857           define for __or1k_hard_float__.
 858
 859 2021-01-13  Stafford Horne  <shorne@gmail.com>
 860
 861         * config/or1k/or1k.h (NO_PROFILE_COUNTERS): Define as 1.
 862         (PROFILE_HOOK): Define to call _mcount.
 863         (FUNCTION_PROFILER): Change from abort to no-op.
 864
 865 2021-01-13  Jakub Jelinek  <jakub@redhat.com>
 866
 867         PR tree-optimization/96691
 868         * match.pd ((~X | C) ^ D -> (X | C) ^ (~D ^ C),
 869         (~X & C) ^ D -> (X & C) ^ (D ^ C)): New simplifications if
 870         (~D ^ C) or (D ^ C) can be simplified.
 871
 872 2021-01-13  Richard Biener  <rguenther@suse.de>
 873
 874         PR tree-optimization/92645
 875         * match.pd (BIT_FIELD_REF to conversion): Delay canonicalization
 876         until after vector lowering.
 877
 878 2021-01-13  Richard Sandiford  <richard.sandiford@arm.com>
 879
 880         * config/aarch64/aarch64-sve.md (fnma<mode>4): Extend from SVE_FULL_I
 881         to SVE_I.
 882         (@aarch64_pred_fnma<mode>, cond_fnma<mode>, *cond_fnma<mode>_2)
 883         (*cond_fnma<mode>_4, *cond_fnma<mode>_any): Likewise.
 884
 885 2021-01-13  Richard Sandiford  <richard.sandiford@arm.com>
 886
 887         * config/aarch64/aarch64-sve.md (fma<mode>4): Extend from SVE_FULL_I
 888         to SVE_I.
 889         (@aarch64_pred_fma<mode>, cond_fma<mode>, *cond_fma<mode>_2)
 890         (*cond_fma<mode>_4, *cond_fma<mode>_any): Likewise.
 891
 892 2021-01-13  Richard Biener  <rguenther@suse.de>
 893
 894         PR tree-optimization/92645
 895         * tree-vect-slp.c (vect_build_slp_tree_1): Relax supported
 896         BIT_FIELD_REF argument.
 897         (vect_build_slp_tree_2): Record the desired vector type
 898         on the external vector def.
 899         (vectorizable_slp_permutation): Handle required punning
 900         of existing vector defs.
 901
 902 2021-01-13  Richard Sandiford  <richard.sandiford@arm.com>
 903
 904         * rtl-ssa/accesses.h (def_lookup): Fix order of comparison results.
 905
 906 2021-01-13  Richard Sandiford  <richard.sandiford@arm.com>
 907
 908         * config/sh/sh.md (movsf_ie): Remove operands[2] test.
 909
 910 2021-01-13  Samuel Thibault  <samuel.thibault@ens-lyon.org>
 911
 912         * config.gcc [$target == *-*-gnu*]: Enable
 913         'default_gnu_indirect_function'.
 914
 915 2021-01-13  Jakub Jelinek  <jakub@redhat.com>
 916
 917         PR target/95905
 918         * optabs.c (expand_vec_perm_const): Don't force v0 and v1 into
 919         registers before calling targetm.vectorize.vec_perm_const, only after
 920         that.
 921         * config/i386/i386-expand.c (ix86_vectorize_vec_perm_const): Handle
 922         two argument permutation when one operand is zero vector and only
 923         after that force operands into registers.
 924         * config/i386/sse.md (*avx2_zero_extendv16qiv16hi2_1): New
 925         define_insn_and_split pattern.
 926         (*avx512bw_zero_extendv32qiv32hi2_1): Likewise.
 927         (*avx512f_zero_extendv16hiv16si2_1): Likewise.
 928         (*avx2_zero_extendv8hiv8si2_1): Likewise.
 929         (*avx512f_zero_extendv8siv8di2_1): Likewise.
 930         (*avx2_zero_extendv4siv4di2_1): Likewise.
 931         * config/mips/mips.c (mips_vectorize_vec_perm_const): Force operands
 932         into registers.
 933         * config/arm/arm.c (arm_vectorize_vec_perm_const): Likewise.
 934         * config/sparc/sparc.c (sparc_vectorize_vec_perm_const): Likewise.
 935         * config/ia64/ia64.c (ia64_vectorize_vec_perm_const): Likewise.
 936         * config/aarch64/aarch64.c (aarch64_vectorize_vec_perm_const): Likewise.
 937         * config/rs6000/rs6000.c (rs6000_vectorize_vec_perm_const): Likewise.
 938         * config/gcn/gcn.c (gcn_vectorize_vec_perm_const): Likewise.  Use std::swap.
 939
 940 2021-01-13  Martin Liska  <mliska@suse.cz>
 941
 942         PR tree-optimization/98455
 943         * gimple-if-to-switch.cc (condition_info::record_phi_mapping):
 944         Record also virtual PHIs.
 945         (pass_if_to_switch::execute): Return TODO_cleanup_cfg only
 946         conditionally.
 947
 948 2021-01-13  Jonathan Wakely  <jwakely@redhat.com>
 949
 950         * doc/invoke.texi (C++ Modules): Fix typos.
 951
 952 2021-01-13  Richard Biener  <rguenther@suse.de>
 953
 954         PR tree-optimization/98640
 955         * tree-ssa-sccvn.c (visit_nary_op): Do not try to
 956         handle plus or minus from a truncated operand to be
 957         sign-extended.
 958
 959 2021-01-13  Jakub Jelinek  <jakub@redhat.com>
 960
 961         PR target/96938
 962         * config/i386/i386.md (*btr<mode>_1, *btr<mode>_2): New
 963         define_insn_and_split patterns.
 964         (splitter after *btr<mode>_2): New splitter.
 965
 966 2021-01-13  Martin Liska  <mliska@suse.cz>
 967
 968         PR ipa/98652
 969         * cgraphunit.c (analyze_functions): Remove dead code.
 970
 971 2021-01-13  Qian Jianhua  <qianjh@cn.fujitsu.com>
 972
 973         * config/aarch64/aarch64-cost-tables.h (a64fx_extra_costs): New.
 974         * config/aarch64/aarch64.c (a64fx_addrcost_table): New.
 975         (a64fx_regmove_cost, a64fx_vector_cost): New.
 976         (a64fx_tunings): Use the new added cost tables.
 977
 978 2021-01-13  Jakub Jelinek  <jakub@redhat.com>
 979
 980         PR target/95905
 981         * config/i386/predicates.md (pmovzx_parallel): New predicate.
 982         * config/i386/sse.md (*sse4_1_zero_extendv8qiv8hi2_3): New
 983         define_insn_and_split pattern.
 984         (*sse4_1_zero_extendv4hiv4si2_3): Likewise.
 985         (*sse4_1_zero_extendv2siv2di2_3): Likewise.
 986
 987 2021-01-13  Julian Brown  <julian@codesourcery.com>
 988
 989         * config/gcn/gcn.c (gcn_conditional_register_usage): Remove dead code
 990         to fix v0 register.
 991
 992 2021-01-13  Julian Brown  <julian@codesourcery.com>
 993
 994         * config/gcn/gcn.c (gcn_md_reorg): Fix case where EXEC reg is live
 995         on entry to a BB.
 996
 997 2021-01-13  Julian Brown  <julian@codesourcery.com>
 998
 999         * config/gcn/gcn-valu.md (recip<mode>2<exec>, recip<mode>2): Use unspec
1000         for reciprocal-approximation instructions.
1001         (div<mode>3): Use fused multiply-accumulate operations for reciprocal
1002         refinement and division result.
1003         * config/gcn/gcn.md (UNSPEC_RCP): New unspec constant.
1004
1005 2021-01-13  Julian Brown  <julian@codesourcery.com>
1006
1007         * config/gcn/gcn-valu.md (subdf): Rename to...
1008         (subdf3): This.
1009
1010 2021-01-12  Martin Liska  <mliska@suse.cz>
1011
1012         * gcov.c (source_info::debug): Fix printf format for 32-bit hosts.
1013
1014 2021-01-12  Andrea Corallo  <andrea.corallo@arm.com>
1015
1016         * function-abi.h: Fix typo.
1017
1018 2021-01-12  Christophe Lyon  <christophe.lyon@linaro.org>
1019
1020         PR target/97875
1021         PR target/97875
1022         * config/arm/arm.h (ARM_HAVE_NEON_V8QI_LDST): New macro.
1023         (ARM_HAVE_NEON_V16QI_LDST, ARM_HAVE_NEON_V4HI_LDST): Likewise.
1024         (ARM_HAVE_NEON_V8HI_LDST, ARM_HAVE_NEON_V2SI_LDST): Likewise.
1025         (ARM_HAVE_NEON_V4SI_LDST, ARM_HAVE_NEON_V4HF_LDST): Likewise.
1026         (ARM_HAVE_NEON_V8HF_LDST, ARM_HAVE_NEON_V4BF_LDST): Likewise.
1027         (ARM_HAVE_NEON_V8BF_LDST, ARM_HAVE_NEON_V2SF_LDST): Likewise.
1028         (ARM_HAVE_NEON_V4SF_LDST, ARM_HAVE_NEON_DI_LDST): Likewise.
1029         (ARM_HAVE_NEON_V2DI_LDST): Likewise.
1030         (ARM_HAVE_V8QI_LDST, ARM_HAVE_V16QI_LDST): Likewise.
1031         (ARM_HAVE_V4HI_LDST, ARM_HAVE_V8HI_LDST): Likewise.
1032         (ARM_HAVE_V2SI_LDST, ARM_HAVE_V4SI_LDST, ARM_HAVE_V4HF_LDST): Likewise.
1033         (ARM_HAVE_V8HF_LDST, ARM_HAVE_V4BF_LDST, ARM_HAVE_V8BF_LDST): Likewise.
1034         (ARM_HAVE_V2SF_LDST, ARM_HAVE_V4SF_LDST, ARM_HAVE_DI_LDST): Likewise.
1035         (ARM_HAVE_V2DI_LDST): Likewise.
1036         * config/arm/mve.md (*movmisalign<mode>_mve_store): New pattern.
1037         (*movmisalign<mode>_mve_load): New pattern.
1038         * config/arm/neon.md (movmisalign<mode>): Move to ...
1039         * config/arm/vec-common.md: ... here.
1040
1041 2021-01-12  Vladimir N. Makarov  <vmakarov@redhat.com>
1042
1043         PR target/97969
1044         * lra-eliminations.c (eliminate_regs_in_insn): Add transformation
1045         of pattern 'plus (plus (hard reg, const), pseudo)'.
1046
1047 2021-01-12  Richard Biener  <rguenther@suse.de>
1048
1049         PR tree-optimization/98550
1050         * tree-vect-slp.c (vect_record_max_nunits): Check whether
1051         the group size is a multiple of the vector element count.
1052         (vect_build_slp_tree_1): When we need to fail because
1053         the vector type choosen causes unrolling do so lazily
1054         without affecting matches only at the end to guide group splitting.
1055
1056 2021-01-12  Martin Liska  <mliska@suse.cz>
1057
1058         PR c++/97284
1059         * optc-save-gen.awk: Compare also n_target_save vars with
1060         strcmp.
1061
1062 2021-01-12  Martin Liska  <mliska@suse.cz>
1063
1064         * gcov.c (source_info::debug): New.
1065         (print_usage): Add --debug (-D) option.
1066         (process_args): Likewise.
1067         (generate_results): Call src->debug after
1068         accumulate_line_counts.
1069         (read_graph_file): Properly assign id for EXIT_BLOCK.
1070         * profile.c (branch_prob): Dump function body before it is
1071         instrumented.
1072
1073 2021-01-12  Jakub Jelinek  <jakub@redhat.com>
1074
1075         PR tree-optimization/98629
1076         * tree-ssa-math-opts.c (arith_overflow_check_p): Don't update use_stmt
1077         unless returning non-zero.
1078
1079 2021-01-12  Jakub Jelinek  <jakub@redhat.com>
1080
1081         PR tree-optimization/95731
1082         * tree-ssa-reassoc.c (optimize_range_tests_cmp_bitwise): Also optimize
1083         x < 0 && y < 0 && z < 0 into (x | y | z) < 0 for signed x, y, z.
1084         (optimize_range_tests): Call optimize_range_tests_cmp_bitwise
1085         only after optimize_range_tests_var_bound.
1086
1087 2021-01-12  Jakub Jelinek  <jakub@redhat.com>
1088
1089         * configure.ac: Ensure c/Make-lang.in comes first in @all_lang_makefrags@.
1090         * configure: Regenerated.
1091
1092 2021-01-12  liuhongt  <hongtao.liu@intel.com>
1093
1094         PR target/98612
1095         * config/i386/i386-builtins.h (BUILTIN_DESC_SWAP_OPERANDS):
1096         Deleted.
1097         * config/i386/i386-expand.c (ix86_expand_sse_comi): Delete
1098         dead code.
1099
1100 2021-01-12  Alexandre Oliva  <oliva@adacore.com>
1101
1102         * ssa-iterators.h (end_imm_use_stmt_traverse): Forward
1103         declare.
1104         (auto_end_imm_use_stmt_traverse): New struct.
1105         (FOR_EACH_IMM_USE_STMT): Use it.
1106         (BREAK_FROM_IMM_USE_STMT, RETURN_FROM_IMM_USE_STMT): Remove,
1107         along with uses...
1108         * gimple-ssa-strength-reduction.c: ... here, ...
1109         * graphite-scop-detection.c: ... here, ...
1110         * ipa-modref.c, ipa-pure-const.c, ipa-sra.c: ... here, ...
1111         * tree-predcom.c, tree-ssa-ccp.c: ... here, ...
1112         * tree-ssa-dce.c, tree-ssa-dse.c: ... here, ...
1113         * tree-ssa-loop-ivopts.c, tree-ssa-math-opts.c: ... here, ...
1114         * tree-ssa-phiprop.c, tree-ssa.c: ... here, ...
1115         * tree-vect-slp.c: ... and here, ...
1116         * doc/tree-ssa.texi: ... and the example here.
1117
1118 2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>
1119
1120         * config/aarch64/aarch64-sve.md (sdiv_pow2<mode>3): Extend from
1121         SVE_FULL_I to SVE_I.  Generate an UNSPEC_PRED_X.
1122         (*sdiv_pow2<mode>3): New pattern.
1123         (@cond_<sve_int_op><mode>): Extend from SVE_FULL_I to SVE_I.
1124         Wrap the ASRD in an UNSPEC_PRED_X.
1125         (*cond_<sve_int_op><mode>_2): Likewise.  Replace the UNSPEC_PRED_X
1126         predicate with a constant PTRUE, if it isn't already.
1127         (*cond_<sve_int_op><mode>_z): Replace with...
1128         (*cond_<sve_int_op><mode>_any): ...this new pattern.
1129
1130 2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>
1131
1132         * config/aarch64/aarch64-sve.md (*cond_bic<mode>_2): Extend from
1133         SVE_FULL_I to SVE_I.
1134         (*cond_bic<mode>_any): Likewise.
1135
1136 2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>
1137
1138         * config/aarch64/aarch64-sve.md (<su>mul<mode>3_highpart)
1139         (@aarch64_pred_<MUL_HIGHPART:optab><mode>): Extend from SVE_FULL_I
1140         to SVE_I.
1141
1142 2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>
1143
1144         * config/aarch64/aarch64-sve.md (<su>abd<mode>_3): Extend from
1145         SVE_FULL_I to SVE_I.
1146         (*aarch64_cond_<su>abd<mode>_2): Likewise.
1147         (*aarch64_cond_<su>abd<mode>_any): Likewise.
1148         (@aarch64_pred_<su>abd<mode>): Likewise.  Use UNSPEC_PRED_X
1149         for the max and min but not for the minus.
1150         (*aarch64_cond_<su>abd<mode>_3): New pattern.
1151
1152 2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>
1153
1154         * config/aarch64/iterators.md (SVE_24I): New iterator.
1155         * config/aarch64/aarch64-sve.md (*aarch64_adr<mode>_shift): Extend from
1156         SVE_FULL_SDI to SVE_24I.  Use containers rather than elements.
1157
1158 2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>
1159
1160         * config/aarch64/aarch64-sve.md (@cond_<SVE_INT_BINARY:optab><mode>)
1161         (*cond_<SVE_INT_BINARY:optab><mode>_2): Extend from SVE_FULL_I
1162         to SVE_I.
1163         (*cond_<SVE_INT_BINARY:optab><mode>_3): Likewise.
1164         (*cond_<SVE_INT_BINARY:optab><mode>_any): Likewise.
1165         (*cond_<SVE_INT_BINARY:optab><mode>_2_const): Likewise.
1166         (*cond_<SVE_INT_BINARY:optab><mode>_any_const): Likewise.
1167
1168 2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>
1169
1170         * config/aarch64/aarch64-sve.md (<SVE_INT_BINARY_IMM:optab><mode>3)
1171         (@aarch64_pred_<SVE_INT_BINARY_IMM:optab><mode>)
1172         (*post_ra_<SVE_INT_BINARY_IMM:optab><mode>3): Extend from SVE_FULL_I
1173         to SVE_I.
1174
1175 2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>
1176
1177         * config/aarch64/aarch64-sve.md (<ASHIFT:optab><mode>3)
1178         (v<ASHIFT:optab><mode>3, @aarch64_pred_<optab><mode>)
1179         (*post_ra_v<ASHIFT:optab><mode>3): Extend from SVE_FULL_I to SVE_I.
1180
1181 2021-01-11  Martin Liska  <mliska@suse.cz>
1182
1183         PR jit/98615
1184         * symtab-clones.h (clone_info::release): Release
1185         symtab::m_clones with ggc_delete as it's a GGC memory.
1186
1187 2021-01-11  Matthias Klose  <doko@ubuntu.com>
1188
1189         * Makefile.in (LINK_PROGRESS): Show the link target.
1190
1191 2021-01-11  Richard Biener  <rguenther@suse.de>
1192
1193         PR tree-optimization/91403
1194         * tree-vect-data-refs.c (vect_analyze_group_access_1): Cap
1195         single-element interleaving group size at 4096 elements.
1196
1197 2021-01-11  Richard Biener  <rguenther@suse.de>
1198
1199         PR tree-optimization/98526
1200         * tree-vect-loop.c (vect_model_reduction_cost): Remove costing
1201         of the actual reduction op for the regular case.
1202         (vectorizable_reduction): Cost the stmts
1203         vect_transform_reduction produces here.
1204
1205 2021-01-11  Andreas Krebbel  <krebbel@linux.ibm.com>
1206
1207         * tree-ssa-forwprop.c (simplify_vector_constructor): For
1208         big-endian, use UNPACK[_FLOAT]_HI.
1209
1210 2021-01-11  Tamar Christina  <tamar.christina@arm.com>
1211
1212         * tree-vect-slp-patterns.c (class complex_pattern,
1213         class complex_add_pattern): Add parameters to matches.
1214         (complex_add_pattern::build): Free memory.
1215         (complex_add_pattern::matches): Move validation end of match.
1216         (complex_add_pattern::recognize): Likewise.
1217
1218 2021-01-11  Tamar Christina  <tamar.christina@arm.com>
1219
1220         * tree-vect-slp-patterns.c (linear_loads_p): Fix externals.
1221
1222 2021-01-11  Tamar Christina  <tamar.christina@arm.com>
1223
1224         * tree-vect-slp-patterns.c (is_linear_load_p): Fix ambiguity.
1225
1226 2021-01-11  Jakub Jelinek  <jakub@redhat.com>
1227
1228         PR tree-optimization/95867
1229         * tree-ssa-math-opts.h: New header.
1230         * tree-ssa-math-opts.c: Include tree-ssa-math-opts.h.
1231         (powi_as_mults): No longer static.  Use build_one_cst instead of
1232         build_real.  Formatting fix.
1233         * tree-ssa-reassoc.c: Include tree-ssa-math-opts.h.
1234         (attempt_builtin_powi): Handle multiplication reassociation without
1235         powi_fndecl using powi_as_mults.
1236         (reassociate_bb): For integral types don't require
1237         -funsafe-math-optimizations to call attempt_builtin_powi.
1238
1239 2021-01-11  Jakub Jelinek  <jakub@redhat.com>
1240
1241         PR tree-optimization/95852
1242         * tree-ssa-math-opts.c (maybe_optimize_guarding_check): Change
1243         mul_stmts parameter type to vec<gimple *> &.  Before cond_stmt
1244         allow in the bb any of the stmts in that vector, div_stmt and
1245         up to 3 cast stmts.
1246         (arith_cast_equal_p): New function.
1247         (arith_overflow_check_p): Add cast_stmt argument, handle signed
1248         multiply overflow checks.
1249         (match_arith_overflow): Adjust caller.  Handle signed multiply
1250         overflow checks.
1251
1252 2021-01-11  Jakub Jelinek  <jakub@redhat.com>
1253
1254         PR tree-optimization/95852
1255         * tree-ssa-math-opts.c (maybe_optimize_guarding_check): New function.
1256         (uaddsub_overflow_check_p): Renamed to ...
1257         (arith_overflow_check_p): ... this.  Handle also multiplication
1258         with overflow check.
1259         (match_uaddsub_overflow): Renamed to ...
1260         (match_arith_overflow): ... this.  Add cfg_changed argument.  Handle
1261         also multiplication with overflow check.  Adjust function comment.
1262         (math_opts_dom_walker::after_dom_children): Adjust callers.  Call
1263         match_arith_overflow also for MULT_EXPR.
1264
1265 2021-01-11  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
1266
1267         * config/aarch64/arm_neon.h (vmovl_s8): Reimplement using
1268         __builtin_convertvector.
1269         (vmovl_s16): Likewise.
1270         (vmovl_s32): Likewise.
1271         (vmovl_u8): Likewise.
1272         (vmovl_u16): Likewise.
1273         (vmovl_u32): Likewise.
1274         (vmovn_s16): Likewise.
1275         (vmovn_s32): Likewise.
1276         (vmovn_s64): Likewise.
1277         (vmovn_u16): Likewise.
1278         (vmovn_u32): Likewise.
1279         (vmovn_u64): Likewise.
1280
1281 2021-01-11  Martin Liska  <mliska@suse.cz>
1282
1283         * gimple-if-to-switch.cc (struct condition_info): Use auto_var.
1284         (if_chain::is_beneficial): Delete clusters
1285         (find_conditions): Make second argument of conditions_in_bbs a
1286         pointer so that we control over it's lifetime.
1287         (pass_if_to_switch::execute): Delete them.
1288
1289 2021-01-11  Kewen Lin  <linkw@linux.ibm.com>
1290
1291         * ira.c (move_unallocated_pseudos): Check other_reg and skip if
1292         it isn't set.
1293
1294 2021-01-09  Maciej W. Rozycki  <macro@linux-mips.org>
1295
1296         * config/vax/vax.md (cc): Remove mode attribute.
1297         (subst_<cc>, subst_f<cc>): Rename to...
1298         (subst_<mode>, subst_f<VAXccnz:mode>): ... these respectively.
1299         (*cbranch<VAXint:mode>4_<VAXcc:mode>): Update for `cc' removal.
1300         (*cbranch<VAXfp:mode>4_<VAXccnz:mode>): Likewise.
1301         (*branch_<mode>, *branch_<mode>_reversed): Likewise.
1302
1303 2021-01-09  Maciej W. Rozycki  <macro@linux-mips.org>
1304
1305         * config/vax/vax.md (subst_f<cc>): Add mode to operands and
1306         `const_double_zero'.
1307
1308 2021-01-09  Maciej W. Rozycki  <macro@linux-mips.org>
1309
1310         * config/pdp11/pdp11.md (PDPfp): New mode iterator.
1311         (fcc_cc, fcc_ccnz): Use it.  Add mode to `const_double_zero' and
1312         operands.
1313
1314 2021-01-09  Maciej W. Rozycki  <macro@linux-mips.org>
1315
1316         * genemit.c (gen_exp) <CONST_DOUBLE>: Handle `const_double_zero'
1317         rtx.
1318         * read-rtl.c (rtx_reader::read_rtx_code): Handle machine mode
1319         with `const_double_zero'.
1320         * doc/rtl.texi (Constant Expression Types): Document it.
1321
1322 2021-01-09  Jakub Jelinek  <jakub@redhat.com>
1323
1324         PR c++/98556
1325         * tree-cfg.c (verify_gimple_assign_binary): Allow lhs of
1326         POINTER_DIFF_EXPR to be any integral type.
1327
1328 2021-01-09  Jakub Jelinek  <jakub@redhat.com>
1329
1330         PR rtl-optimization/98603
1331         * function.c (instantiate_virtual_regs_in_insn): For asm goto
1332         with impossible constraints, drop all SETs, CLOBBERs, drop PARALLEL
1333         if any, set ASM_OPERANDS mode to VOIDmode and change
1334         ASM_OPERANDS_OUTPUT_CONSTRAINT and ASM_OPERANDS_OUTPUT_IDX.
1335
1336 2021-01-09  Alexandre Oliva  <oliva@gnu.org>
1337
1338         PR debug/97714
1339         * final.c (notice_source_line): Narrow down the condition to
1340         skip a line-0 marker.
1341
1342 2021-01-08  Sergei Trofimovich  <siarheit@google.com>
1343
1344         * ipa-modref.c (merge_call_side_effects): Fix
1345         linebreak split by reordering two print calls.
1346
1347 2021-01-08  Ilya Leoshkevich  <iii@linux.ibm.com>
1348
1349         * config/s390/vector.md (*tf_to_fprx2_0): Rename from
1350         "*mov_tf_to_fprx2_0" for consistency, fix constraint.
1351         (*tf_to_fprx2_1): Rename from "*mov_tf_to_fprx2_1" for
1352         consistency, fix constraint.
1353
1354 2021-01-08  Ilya Leoshkevich  <iii@linux.ibm.com>
1355
1356         * config/s390/s390-c.c (s390_def_or_undef_macro): Accept
1357         callables instead of mask values.
1358         (struct target_flag_set_p): New predicate.
1359         (s390_cpu_cpp_builtins_internal): Define or undefine
1360         __LONG_DOUBLE_VX__ macro.
1361
1362 2021-01-08  H.J. Lu  <hjl.tools@gmail.com>
1363
1364         PR target/98482
1365         * config/i386/i386.c (x86_function_profiler): Use R10 and R11
1366         to call mcount in large model with PIC for NO_PROFILE_COUNTERS
1367         targets.
1368
1369 2021-01-08  Richard Biener  <rguenther@suse.de>
1370
1371         * tree-ssa-sccvn.c (pass_fre::execute): Reset the SCEV hash table.
1372
1373 2021-01-08  Richard Biener  <rguenther@suse.de>
1374
1375         * tree-vect-slp.c (scalar_stmts_to_slp_tree_map_t): Fix.
1376         (vect_build_slp_tree): On cache hit release the matched
1377         scalar stmts vector.
1378         * tree-vect-stmts.c (vectorizable_store): Properly free
1379         vec_oprnds before possibly gathering them again.
1380
1381 2021-01-08  Richard Biener  <rguenther@suse.de>
1382
1383         PR tree-optimization/98544
1384         * tree-vect-slp.c (vect_optimize_slp): Always materialize
1385         permutes at a permute node.
1386
1387 2021-01-08  H.J. Lu  <hjl.tools@gmail.com>
1388
1389         PR target/98482
1390         * config/i386/i386.c (x86_function_profiler): Use R10 to call
1391         mcount in large model.  Sorry for large model with PIC.
1392
1393 2021-01-08  Jakub Jelinek  <jakub@redhat.com>
1394
1395         PR target/98585
1396         * config/i386/i386.opt (ix86_cmodel, ix86_incoming_stack_boundary_arg,
1397         ix86_pmode, ix86_preferred_stack_boundary_arg, ix86_regparm,
1398         ix86_veclibabi_type): Remove x_ prefix, use TargetVariable instead of
1399         TargetSave and initialize for variables with enum types.
1400         (mfentry, mstack-protector-guard-reg=, mstack-protector-guard-offset=,
1401         mstack-protector-guard-symbol=): Add Save.
1402         * config/i386/i386-options.c (ix86_function_specific_save,
1403         ix86_function_specific_restore): Don't save or restore x_ix86_cmodel,
1404         x_ix86_incoming_stack_boundary_arg, x_ix86_pmode,
1405         x_ix86_preferred_stack_boundary_arg, x_ix86_regparm,
1406         x_ix86_veclibabi_type.
1407
1408 2021-01-08  Richard Sandiford  <richard.sandiford@arm.com>
1409
1410         * config/aarch64/aarch64-sve.md (*cnot<mode>): Extend from
1411         SVE_FULL_I to SVE_I.
1412         (*cond_cnot<mode>_2, *cond_cnot<mode>_any): Likewise.
1413
1414 2021-01-08  Richard Sandiford  <richard.sandiford@arm.com>
1415
1416         * config/aarch64/aarch64-sve.md (*cond_uxt<mode>_2): Extend from
1417         SVE_FULL_I to SVE_I.
1418         (*cond_uxt<mode>_any): Likewise.
1419
1420 2021-01-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
1421
1422         * config/aarch64/iterators.md (Vwhalf): New iterator.
1423         * config/aarch64/aarch64-simd.md (aarch64_<sur>adalp<mode>_3):
1424         Rename to...
1425         (aarch64_<sur>adalp<mode>): ... This.  Make more
1426         builtin-friendly.
1427         (<sur>sadv16qi): Adjust callsite of the above.
1428         * config/aarch64/aarch64-simd-builtins.def (sadalp, uadalp): New
1429         builtins.
1430         * config/aarch64/arm_neon.h (vpadal_s8): Reimplement using
1431         builtins.
1432         (vpadal_s16): Likewise.
1433         (vpadal_u8): Likewise.
1434         (vpadal_u16): Likewise.
1435         (vpadalq_s8): Likewise.
1436         (vpadalq_s16): Likewise.
1437         (vpadalq_s32): Likewise.
1438         (vpadalq_u8): Likewise.
1439         (vpadalq_u16): Likewise.
1440         (vpadalq_u32): Likewise.
1441
1442 2021-01-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
1443
1444         * config/aarch64/aarch64-simd.md (aarch64_<su>abd<mode>_3):
1445         Rename to...
1446         (aarch64_<su>abd<mode>): ... This.
1447         (<sur>sadv16qi): Adjust callsite of the above.
1448         * config/aarch64/aarch64-simd-builtins.def (sabd, uabd): Define
1449         builtins.
1450         * config/aarch64/arm_neon.h (vabd_s8): Reimplement using
1451         builtin.
1452         (vabd_s16): Likewise.
1453         (vabd_s32): Likewise.
1454         (vabd_u8): Likewise.
1455         (vabd_u16): Likewise.
1456         (vabd_u32): Likewise.
1457         (vabdq_s8): Likewise.
1458         (vabdq_s16): Likewise.
1459         (vabdq_s32): Likewise.
1460         (vabdq_u8): Likewise.
1461         (vabdq_u16): Likewise.
1462         (vabdq_u32): Likewise.
1463
1464 2021-01-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
1465
1466         * config/aarch64/aarch64-simd-builtins.def (saba, uaba): Define
1467         builtins.
1468         * config/aarch64/arm_neon.h (vaba_s8): Implement using builtin.
1469         (vaba_s16): Likewise.
1470         (vaba_s32): Likewise.
1471         (vaba_u8): Likewise.
1472         (vaba_u16): Likewise.
1473         (vaba_u32): Likewise.
1474         (vabaq_s8): Likewise.
1475         (vabaq_s16): Likewise.
1476         (vabaq_s32): Likewise.
1477         (vabaq_u8): Likewise.
1478         (vabaq_u16): Likewise.
1479         (vabaq_u32): Likewise.
1480
1481 2021-01-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
1482
1483         * config/aarch64/aarch64-simd.md (aba<mode>_3): Rename to...
1484         (aarch64_<su>aba<mode>): ... This.  Handle uaba as well.
1485         Change RTL pattern to match.
1486
1487 2021-01-08  Kito Cheng  <kito.cheng@sifive.com>
1488
1489         * common/config/riscv/riscv-common.c (riscv_current_subset_list): New.
1490         * config/riscv/riscv-c.c (riscv-subset.h): New.
1491         (INCLUDE_STRING): Define.
1492         (riscv_cpu_cpp_builtins): Add new style architecture extension
1493         test macros.
1494         * config/riscv/riscv-subset.h (riscv_subset_list::begin): New.
1495         (riscv_subset_list::end): New.
1496         (riscv_current_subset_list): New.
1497
1498 2021-01-08  Kito Cheng  <kito.cheng@sifive.com>
1499
1500         * common/config/riscv/riscv-common.c (RISCV_DONT_CARE_VERSION):
1501         Move to riscv-subset.h.
1502         (struct riscv_subset_t): Ditto.
1503         (class riscv_subset_list): Ditto.
1504         * config/riscv/riscv-subset.h (RISCV_DONT_CARE_VERSION): Move
1505         from riscv-common.c.
1506         (struct riscv_subset_t): Ditto.
1507         (class riscv_subset_list): Ditto.
1508         * config/riscv/t-riscv ($(common_out_file)): Add file
1509         dependency.
1510
1511 2021-01-07  Jakub Jelinek  <jakub@redhat.com>
1512
1513         PR target/98567
1514         * config/i386/i386.md (*bmi_blsi_<mode>_cmp, *bmi_blsi_<mode>_ccno):
1515         New define_insn patterns.
1516
1517 2021-01-07  Richard Sandiford  <richard.sandiford@arm.com>
1518
1519         * config/aarch64/aarch64-sve.md (@cond_<SVE_INT_UNARY:optab><mode>)
1520         (*cond_<SVE_INT_UNARY:optab><mode>_2): Extend from SVE_FULL_I to SVE_I.
1521         (*cond_<SVE_INT_UNARY:optab><mode>_any): Likewise.
1522
1523 2021-01-07  Richard Sandiford  <richard.sandiford@arm.com>
1524
1525         PR tree-optimization/98560
1526         * internal-fn.def (IFN_VCONDU, IFN_VCONDEQ): Use type vec_cond.
1527         * internal-fn.c (vec_cond_mask_direct): Get the data mode from
1528         argument 1.
1529         (vec_cond_direct): Likewise argument 2.
1530         (vec_condu_direct, vec_condeq_direct): Delete.
1531         (expand_vect_cond_optab_fn): Rename to...
1532         (expand_vec_cond_optab_fn): ...this, replacing old macro.
1533         (expand_vec_condu_optab_fn, expand_vec_condeq_optab_fn): Delete.
1534         (expand_vect_cond_mask_optab_fn): Rename to...
1535         (expand_vec_cond_mask_optab_fn): ...this, replacing old macro.
1536         (direct_vec_cond_mask_optab_supported_p): Treat the optab as a
1537         convert optab.
1538         (direct_vec_cond_optab_supported_p): Likewise.
1539         (direct_vec_condu_optab_supported_p): Delete.
1540         (direct_vec_condeq_optab_supported_p): Delete.
1541         * gimple-isel.cc: Include internal-fn.h.
1542         (gimple_expand_vec_cond_expr): Check that IFN_VCONDEQ is supported
1543         before using it.
1544
1545 2021-01-07  Richard Sandiford  <richard.sandiford@arm.com>
1546
1547         PR tree-optimization/98560
1548         * gimple-isel.cc (gimple_expand_vec_cond_expr): If we fail to use
1549         IFN_VCOND{,U,EQ}, fall back on IFN_VCOND_MASK.
1550
1551 2021-01-07  Uroš Bizjak  <ubizjak@gmail.com>
1552
1553         * config/i386/i386.md (insn): Merge from plusminus_insn, shift_insn,
1554         rotate_insn and optab code attributes.
1555         Update all uses to merged code attribute.
1556         * config/i386/sse.md: Update all uses to merged code attribute.
1557         * config/i386/mmx.md: Update all uses to merged code attribute.
1558
1559 2021-01-07  Jakub Jelinek  <jakub@redhat.com>
1560
1561         PR tree-optimization/98568
1562         * gimple-ssa-store-merging.c (bswap_view_convert): New function.
1563         (bswap_replace): Use it.
1564
1565 2021-01-06  Vladimir N. Makarov  <vmakarov@redhat.com>
1566
1567         PR rtl-optimization/97978
1568         * lra-int.h (lra_hard_reg_split_p): New external.
1569         * lra.c (lra_hard_reg_split_p): New global.
1570         (lra): Set up lra_hard_reg_split_p after splitting a hard reg.
1571         * lra-assigns.c (lra_assign): Don't check allocation correctness
1572         after hard reg splitting.
1573
1574 2021-01-06  Martin Sebor  <msebor@redhat.com>
1575
1576         PR c++/98305
1577         * builtins.c (new_delete_mismatch_p): New overload.
1578         (new_delete_mismatch_p (tree, tree)): Call it.
1579
1580 2021-01-06  Alexandre Oliva  <oliva@adacore.com>
1581
1582         * Makefile.in (T_GLIMITS_H): New.
1583         (stmp-int-hdrs): Depend on it, use it.
1584         * config/t-vxworks (T_GLIMITS_H): Override it.
1585         (vxw-glimits.h): New.
1586
1587 2021-01-06  Richard Biener  <rguenther@suse.de>
1588
1589         PR tree-optimization/98513
1590         * value-range.cc (intersect_ranges): Compare the upper bounds
1591         for the expected relation.
1592
1593 2021-01-06  Gerald Pfeifer  <gerald@pfeifer.com>
1594
1595         Revert:
1596         2020-12-28  Gerald Pfeifer  <gerald@pfeifer.com>
1597
1598         * doc/standards.texi (HSAIL): Remove section.
1599
1600 2021-01-05  Samuel Thibault  <samuel.thibault@ens-lyon.org>
1601
1602         * configure: Re-generate.
1603
1604 2021-01-05  Jakub Jelinek  <jakub@redhat.com>
1605
1606         * doc/invoke.texi (-std=c++20): Adjust for the publication of
1607         ISO 14882:2020 standard.
1608         * doc/standards.texi: Likewise.
1609
1610 2021-01-05  Jakub Jelinek  <jakub@redhat.com>
1611
1612         PR tree-optimization/94802
1613         * expr.h (maybe_optimize_sub_cmp_0): Declare.
1614         * expr.c: Include tree-pretty-print.h and flags.h.
1615         (maybe_optimize_sub_cmp_0): New function.
1616         (do_store_flag): Use it.
1617         * cfgexpand.c (expand_gimple_cond): Likewise.
1618
1619 2021-01-05  Richard Sandiford  <richard.sandiford@arm.com>
1620
1621         * mux-utils.h (pointer_mux::m_ptr): Tweak description of contents.
1622         * rtlanal.c (simple_regno_set): Tweak description to clarify the
1623         RMW condition.
1624
1625 2021-01-05  Richard Biener  <rguenther@suse.de>
1626
1627         PR tree-optimization/98516
1628         * tree-vect-slp.c (vect_optimize_slp): Permute the incoming
1629         lanes when materializing on a VEC_PERM node.
1630         (vectorizable_slp_permutation): Dump the permute properly.
1631
1632 2021-01-05  Richard Biener  <rguenther@suse.de>
1633
1634         * tree-vect-slp.c (vect_slp_region): Move debug counter
1635         to cover individual subgraphs.
1636
1637 2021-01-05  Richard Biener  <rguenther@suse.de>
1638
1639         PR tree-optimization/98428
1640         * tree-vect-slp.c (vect_build_slp_tree_1): Properly reject
1641         vector lane extracts for loop vectorization.
1642
1643 2021-01-05  Jakub Jelinek  <jakub@redhat.com>
1644
1645         PR tree-optimization/98514
1646         * tree-ssa-reassoc.c (bb_rank): Change type from long * to
1647         int64_t *.
1648         (operand_rank): Change type from hash_map<tree, long> to
1649         hash_map<tree, int64_t>.
1650         (phi_rank): Change return type from long to int64_t.
1651         (loop_carried_phi): Change block_rank variable type from long to
1652         int64_t.
1653         (propagate_rank): Change return type, rank parameter type and
1654         op_rank variable type from long to int64_t.
1655         (find_operand_rank): Change return type from long to int64_t
1656         and change slot variable type from long * to int64_t *.
1657         (insert_operand_rank): Change rank parameter type from long to
1658         int64_t.
1659         (get_rank): Change return type and rank variable type from long to
1660         int64_t.  Use PRId64 instead of ld to print the rank.
1661         (init_reassoc): Change rank variable type from long to int64_t
1662         and adjust correspondingly bb_rank and operand_rank initialization.
1663
1664 2021-01-05  Jakub Jelinek  <jakub@redhat.com>
1665
1666         PR tree-optimization/96928
1667         * tree-ssa-phiopt.c (xor_replacement): New function.
1668         (tree_ssa_phiopt_worker): Call it.
1669
1670 2021-01-05  Jakub Jelinek  <jakub@redhat.com>
1671
1672         PR tree-optimization/96930
1673         * match.pd ((A / (1 << B)) -> (A >> B)): If A is extended
1674         from narrower value which has the same type as 1 << B, perform
1675         the right shift on the narrower value followed by extension.
1676
1677 2021-01-05  Jakub Jelinek  <jakub@redhat.com>
1678
1679         PR tree-optimization/96239
1680         * gimple-ssa-store-merging.c (maybe_optimize_vector_constructor): New
1681         function.
1682         (get_status_for_store_merging): Don't return BB_INVALID for blocks
1683         with potential bswap optimizable CONSTRUCTORs.
1684         (pass_store_merging::execute): Optimize vector CONSTRUCTORs with bswap
1685         if possible.
1686
1687 2021-01-05  Richard Biener  <rguenther@suse.de>
1688
1689         PR tree-optimization/98381
1690         * tree.c (vector_element_bits): Properly compute bool vector
1691         element size.
1692         * tree-vect-loop.c (vectorizable_live_operation): Properly
1693         compute the last lane bit offset.
1694
1695 2021-01-05  Uroš Bizjak  <ubizjak@gmail.com>
1696
1697         PR target/98522
1698         * config/i386/sse.md (sse_cvtps2pi): Redefine as define_insn_and_split.
1699         Clear the top 64 bytes of the input XMM register.
1700         (sse_cvttps2pi): Ditto.
1701
1702 2021-01-05  Uroš Bizjak  <ubizjak@gmail.com>
1703
1704         PR target/98521
1705         * config/i386/xopintrin.h (_mm256_cmov_si256): New.
1706
1707 2021-01-05  H.J. Lu  <hjl.tools@gmail.com>
1708
1709         PR target/98495
1710         * config/i386/xmmintrin.h (_mm_extract_pi16): Cast to unsigned
1711         short first.
1712
1713 2021-01-05  Claudiu Zissulescu  <claziss@synopsys.com>
1714
1715         * config/arc/arc.md (maddsidi4_split): Use ACC_REG_FIRST.
1716         (umaddsidi4_split): Likewise.
1717
1718 2021-01-05  liuhongt  <hongtao.liu@intel.com>
1719
1720         PR target/98461
1721         * config/i386/sse.md (*sse2_pmovskb_zexthisi): New
1722         define_insn_and_split for zero_extend of subreg HI of pmovskb
1723         result.
1724         (*sse2_pmovskb_zexthisi): Add new combine splitters for
1725         zero_extend of not of subreg HI of pmovskb result.
1726
1727 2021-01-05  Richard Sandiford  <richard.sandiford@arm.com>
1728
1729         PR target/97269
1730         * explow.c (convert_memory_address_addr_space_1): Handle UNSPECs
1731         nested in CONSTs.
1732         * config/aarch64/aarch64.c (aarch64_expand_mov_immediate): Use
1733         convert_memory_address to convert symbolic immediates to ptr_mode
1734         before forcing them to memory.
1735
1736 2021-01-05  Richard Sandiford  <richard.sandiford@arm.com>
1737
1738         PR rtl-optimization/97144
1739         * recog.c (constrain_operands): Initialize matching_operand
1740         for each alternative, rather than only doing it once.
1741
1742 2021-01-05  Richard Sandiford  <richard.sandiford@arm.com>
1743
1744         PR rtl-optimization/98403
1745         * rtl-ssa/changes.cc (function_info::finalize_new_accesses): Explain
1746         why we don't remove call clobbers.
1747         (function_info::apply_changes_to_insn): Don't attempt to add
1748         call clobbers here.
1749
1750 2021-01-05  Richard Sandiford  <richard.sandiford@arm.com>
1751
1752         PR tree-optimization/98371
1753         * tree-vect-loop.c (vect_reanalyze_as_main_loop): New function.
1754         (vect_analyze_loop): If an epilogue loop appears to be cheaper
1755         than the main loop, re-analyze it as a main loop before adopting
1756         it as a main loop.
1757
1758 2021-01-05  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1759
1760         PR c++/98316
1761         * configure.ac (NETLIBS): Determine using AX_LIB_SOCKET_NSL.
1762         * aclocal.m4, configure: Regenerate.
1763         * Makefile.in (NETLIBS): Define.
1764         (BACKEND): Remove $(CODYLIB).
1765
1766 2021-01-05  Jakub Jelinek  <jakub@redhat.com>
1767
1768         PR rtl-optimization/98334
1769         * simplify-rtx.c (simplify_context::simplify_binary_operation_1):
1770         Optimize (X - 1) * Y + Y to X * Y or (X + 1) * Y - Y to X * Y.
1771
1772 2021-01-05  Bernd Edlinger  <bernd.edlinger@hotmail.de>
1773
1774         * tree-inline.c (expand_call_inline): Restore input_location.
1775         Return result from recursive call.
1776
1777 2021-01-04  Richard Sandiford  <richard.sandiford@arm.com>
1778
1779         PR tree-optimization/95401
1780         * config/aarch64/aarch64-sve-builtins.cc
1781         (gimple_folder::load_store_cookie): Use bits rather than bytes
1782         for the alignment argument to IFN_MASK_LOAD and IFN_MASK_STORE.
1783         * gimple-fold.c (gimple_fold_mask_load_store_mem_ref): Likewise.
1784         * tree-vect-stmts.c (vectorizable_store): Likewise.
1785         (vectorizable_load): Likewise.
1786
1787 2021-01-04  Richard Biener  <rguenther@suse.de>
1788
1789         PR tree-optimization/98308
1790         * tree-vect-stmts.c (vectorizable_load): Set invariant mask
1791         SLP vectype.
1792
1793 2021-01-04  Jakub Jelinek  <jakub@redhat.com>
1794
1795         PR tree-optimization/95771
1796         * tree-ssa-loop-niter.c (number_of_iterations_popcount): Handle types
1797         with precision smaller than int's precision and types with precision
1798         twice as large as long long.  Formatting fixes.
1799
1800 2021-01-04  Richard Biener  <rguenther@suse.de>
1801
1802         PR tree-optimization/98464
1803         * tree-ssa-sccvn.c (vn_valueize_for_srt): Rename from ...
1804         (vn_valueize_wrapper): ... this.  Temporarily adjust vn_context_bb.
1805         (process_bb): Adjust.
1806
1807 2021-01-04  Matthew Malcomson  <matthew.malcomson@arm.com>
1808
1809         PR other/98437
1810         * doc/invoke.texi (-fsanitize=address): Fix wording describing
1811         clash with -fsanitize=hwaddress.
1812
1813 2021-01-04  Richard Biener  <rguenther@suse.de>
1814
1815         PR tree-optimization/98282
1816         * tree-ssa-sccvn.c (vn_get_stmt_kind): Classify tcc_reference on
1817         invariants as VN_NARY.
1818
1819 2021-01-04  Richard Sandiford  <richard.sandiford@arm.com>
1820
1821         PR target/89057
1822         * config/aarch64/aarch64-simd.md (aarch64_combine<mode>): Accept
1823         aarch64_simd_reg_or_zero for operand 2.  Use the combinez patterns
1824         to handle zero operands.
1825
1826 2021-01-04  Richard Sandiford  <richard.sandiford@arm.com>
1827
1828         * config/aarch64/aarch64.c (offset_6bit_signed_scaled_p): New function.
1829         (offset_6bit_unsigned_scaled_p): Fix typo in comment.
1830         (aarch64_sve_prefetch_operand_p): Accept MUL VLs in the range
1831         [-32, 31].
1832
1833 2021-01-04  Richard Biener  <rguenther@suse.de>
1834
1835         PR tree-optimization/98393
1836         * tree-vect-slp.c (vect_build_slp_tree): Properly zero matches
1837         when hitting the limit.
1838
1839 2021-01-04  Richard Biener  <rguenther@suse.de>
1840
1841         PR tree-optimization/98291
1842         * tree-vect-loop.c (vectorizable_reduction): Bypass
1843         associativity check for SLP reductions with VF 1.
1844
1845 2021-01-04  Jakub Jelinek  <jakub@redhat.com>
1846
1847         PR tree-optimization/96782
1848         * match.pd (x == ~x -> false, x != ~x -> true): New simplifications.
1849
1850 2021-01-04  Bernd Edlinger  <bernd.edlinger@hotmail.de>
1851
1852         * collect-utils.c (collect_execute): Check dumppfx.
1853         * collect2.c (maybe_run_lto_and_relink, do_link): Pass atsuffix
1854         to collect_execute.
1855         (do_link): Add new parameter atsuffix.
1856         (main): Handle -dumpdir option.  Skip one argument for
1857         -o, -isystem and -B options.
1858         * gcc.c (make_at_file): New helper function.
1859         (close_at_file): Use it.
1860
1861 2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>
1862
1863         * config/darwin.h (MIN_LD64_NO_COAL_SECTS): Adjust.
1864         Amend handling for LD64_VERSION fallback defaults.
1865
1866 2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>
1867
1868         * config.gcc: Compute default version information
1869         from the configured target.  Likewise defaults for
1870         ld64.
1871         * config/darwin10.h: Removed.
1872         * config/darwin12.h: Removed.
1873         * config/darwin9.h: Removed.
1874         * config/rs6000/darwin8.h: Removed.
1875
1876 2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>
1877
1878         * config/darwin9.h (ASM_OUTPUT_ALIGNED_COMMON): Delete.
1879
1880 2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>
1881
1882         * config/darwin9.h (STACK_CHECK_STATIC_BUILTIN): Move from here..
1883         * config/darwin.h (STACK_CHECK_STATIC_BUILTIN): .. to here.
1884
1885 2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>
1886
1887         * config/darwin10.h (LINK_GCC_C_SEQUENCE_SPEC): Move from
1888         here...
1889         * config/darwin.h (LINK_GCC_C_SEQUENCE_SPEC): ... to here.
1890
1891 2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>
1892
1893         * config/darwin10.h (LINK_GCC_C_SEQUENCE_SPEC): Move the spec
1894         for the Darwin10 unwinder stub from here ...
1895         * config/darwin.h (LINK_COMMAND_SPEC_A): ... to here.
1896
1897 2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>
1898
1899         * config/darwin.h (DSYMUTIL_SPEC): Default to DWARF
1900         (ASM_DEBUG_SPEC):Only define if the assembler supports
1901         stabs.
1902         (PREFERRED_DEBUGGING_TYPE): Default to DWARF.
1903         (DARWIN_PREFER_DWARF): Define.
1904         * config/darwin9.h (PREFERRED_DEBUGGING_TYPE): Remove.
1905         (DARWIN_PREFER_DWARF): Likewise
1906         (DSYMUTIL_SPEC): Likewise.
1907         (COLLECT_RUN_DSYMUTIL): Likewise.
1908         (ASM_DEBUG_SPEC): Likewise.
1909         (ASM_DEBUG_OPTION_SPEC): Likewise.
1910
1911 2021-01-02  Jan Hubicka  <jh@suse.cz>
1912
1913         * cfg.c (free_block): ggc_free bb.
1914
1915 2021-01-01  Jakub Jelinek  <jakub@redhat.com>
1916
1917         * gcc.c (process_command): Update copyright notice dates.
1918         * gcov-dump.c (print_version): Ditto.
1919         * gcov.c (print_version): Ditto.
1920         * gcov-tool.c (print_version): Ditto.
1921         * gengtype.c (create_file): Ditto.
1922         * doc/cpp.texi: Bump @copying's copyright year.
1923         * doc/cppinternals.texi: Ditto.
1924         * doc/gcc.texi: Ditto.
1925         * doc/gccint.texi: Ditto.
1926         * doc/gcov.texi: Ditto.
1927         * doc/install.texi: Ditto.
1928         * doc/invoke.texi: Ditto.
1929
1930 2021-01-01  Jakub Jelinek  <jakub@redhat.com>
1931
1932         * ChangeLog-2020: Rotate ChangeLog.  New file.
1933
1934 \f
1935 Copyright (C) 2021 Free Software Foundation, Inc.
1936
1937 Copying and distribution of this file, with or without modification,
1938 are permitted in any medium without royalty provided the copyright
1939 notice and this notice are preserved.