gcc/ChangeLog

   1 2016-01-11  Martin Jambor  <mjambor@suse.cz>
   2
   3         PR ipa/69044
   4         * ipa-cp.c (estimate_local_effects): Do not clone for removal of
   5         useless parameters if we cannot change function signature.
   6
   7 2016-01-11  Martin Jambor  <mjambor@suse.cz>
   8
   9         PR ipa/66616
  10         * cgraphclones.c (duplicate_thunk_for_node): Copy can_change_signature
  11         flag.
  12
  13 2016-01-11  Tom de Vries  <tom@codesourcery.com>
  14
  15         PR tree-optimization/69109
  16         * tree-parloops.c (try_transform_to_exit_first_loop_alt): Don't allow
  17         latch with phi.
  18
  19 2016-01-11  Tom de Vries  <tom@codesourcery.com>
  20
  21         PR tree-optimization/69108
  22         * tree-parloops.c (gather_scalar_reductions): Handle case that outer phi
  23         res is not used in a phi.
  24
  25 2016-01-11  Yury Gribov  <y.gribov@samsung.com>
  26
  27         PR 67425
  28         * common.opt (frandom-seed): Fix parameter name.
  29         * doc/invoke.texi (frandom-seed): Ditto and describe parameter.
  30
  31 2016-01-11  Tom de Vries  <tom@codesourcery.com>
  32
  33         PR tree-optimization/69058
  34         * tree-parloops.c (pass_parallelize_loops::execute): Return 0 if libgomp
  35         not supported.
  36
  37 2016-01-11  Andrew Burgess  <andrew.burgess@embecosm.com>
  38
  39         * config/arc/arc.opt (mdiv-rem): Add period to the end.
  40         (mcode-density): Likewise.
  41
  42 2016-01-10  Tom de Vries  <tom@codesourcery.com>
  43
  44         PR tree-optimization/69062
  45         * tree-parloops.c (loop_has_phi_with_address_arg): New function.
  46         (parallelize_loops): Don't paralelize loop that has phi with address
  47         arg.
  48
  49 2016-01-10  Tom de Vries  <tom@codesourcery.com>
  50
  51         PR tree-optimization/69039
  52         * tree-parloops.c (try_create_reduction_list): Only allow single exit
  53         phi for reduction.
  54
  55 2016-01-09  John David Anglin  <danglin@gcc.gnu.org>
  56
  57         PR middle-end/68743
  58         * match.pd: Require target has function_c99_misc before doing
  59         truncl(extend(x)) and trunc(extend(x)) -> extend(truncf(x)), etc.
  60
  61 2016-01-09  Gerald Pfeifer  <gerald@pfeifer.com>
  62
  63         * configure.ac (isl_options_set_schedule_serialize_sccs): Also
  64         use GMPINC.
  65         * configure: Regenerate.
  66
  67 2016-01-09  Jakub Jelinek  <jakub@redhat.com>
  68
  69         PR middle-end/50865
  70         PR tree-optimization/69097
  71         * fold-const.h (expr_not_equal_to): New prototype.
  72         * fold-const.c: Include stringpool.h and tree-ssanames.h.
  73         (expr_not_equal_to): New function.
  74         * match.pd (X % -Y is the same as X % Y): Don't optimize
  75         unless X is known not to be equal to minimum or Y is known
  76         not to be equal to -1.
  77         * tree-vrp.c (simplify_div_or_mod_using_ranges): Add GSI argument.
  78         fold TRUNC_MOD_EXPR if the second argument is not a power of two.
  79         (simplify_stmt_using_ranges): Adjust caller.
  80         (vrp_finalize): Call set_value_range on SSA_NAMEs before calling
  81         substitute_and_fold.
  82
  83 2016-01-09  Jan Hubicka  <hubicka@ucw.cz>
  84
  85         * ipa-icf.c (sem_item_optimizer::merge_classes): Do not ICE on VAR_DECL
  86         w/o DECL_NAME.
  87
  88 2016-01-08  Jakub Jelinek  <jakub@redhat.com>
  89
  90         PR tree-optimization/69167
  91         * gimple-fold.c (replace_stmt_with_simplification): Also punt if
  92         new SSA_NAME_OCCURS_IN_ABNORMAL_PHI SSA_NAMEs appear in operands of
  93         ops[0] comparison.
  94         * gimple-match-head.c (maybe_push_res_to_seq): Likewise.
  95
  96 2016-01-08  Alan Lawrence  <alan.lawrence@arm.com>
  97             Richard Biener  <rguenther@suse.de>
  98
  99         PR tree-optimization/68707
 100         * tree-vect-slp.c (vect_analyze_slp_instance): Cancel permuted SLP
 101         instances that can be handled via vect_load_lanes.
 102
 103 2016-01-08  Uros Bizjak  <ubizjak@gmail.com>
 104
 105         * symtab.c (symtab_node::equal_address_to): Return -1 instead of 2
 106         if we can't determine address equivalence.
 107         * alias.c (compare_base_decl): Update for changed return value of
 108         symtab_node::equal_address_to.
 109
 110 2016-01-08  Jason Merrill  <jason@redhat.com>
 111
 112         PR c++/68983
 113         PR c++/67557
 114         * function.c (assign_temp): Guard against TREE_ADDRESSABLE types here.
 115         * expr.c (store_field): Not here.
 116         * tree-cfgcleanup.c (fixup_noreturn_call): Don't clear LHS of a
 117         call with TREE_ADDRESSABLE type.
 118         * tree-cfg.c (verify_gimple_call): Adjust.
 119
 120 2016-01-08  Olivier Hainque  <hainque@adacore.com>
 121
 122         * config/vxworks.h (VXWORKS_LIBGCC_SPEC): Don't link shared RTPs with
 123         libc_internal.
 124
 125 2016-01-08  Alan Lawrence  <alan.lawrence@arm.com>
 126
 127         * gcc.target/rs6000/paired.md (reduc_smax_v2sf): Rename to...
 128         (reduc_smax_scal_v2sf): ...here, make result SFmode, extract element.
 129         (reduc_smin_v2sf): Rename to...
 130         (reduc_smin_scal_v2sf): ...here, make result SFmode, extract element.
 131         (reduc_splus_v2sf): Rename to...
 132         (reduc_plus_scal_v2sf): ...here, make result SFmode, extract element.
 133
 134 2016-01-08  Jakub Jelinek  <jakub@redhat.com>
 135
 136         PR tree-optimization/69162
 137         * gimplify.c (gimplify_va_arg_expr): Encode original type of
 138         valist argument in another argument.
 139         (gimplify_modify_expr): Adjust for the above change.  Cleanup.
 140         * tree-stdarg.c (expand_ifn_va_arg_1): Use new 3rd argument
 141         to determine the va_list type, build a MEM_REF instead of
 142         build_fold_indirect_ref.
 143
 144         PR tree-optimization/69172
 145         * gimple-fold.c (gimple_fold_builtin_memory_chk): Pass type to
 146         gimple_build.
 147
 148 2016-01-08  Thomas Preud'homme  <thomas.preudhomme@arm.com>
 149
 150         PR tree-optimization/67781
 151         * tree-ssa-math-opts.c (find_bswap_or_nop): Zero out bytes in cmpxchg
 152         and cmpnop in two steps: first the ones not accessed in original
 153         gimple expression in a endian independent way and then the ones not
 154         accessed in the final result in an endian-specific way.
 155
 156 2016-01-08  Jakub Jelinek  <jakub@redhat.com>
 157
 158         PR tree-optimization/69083
 159         * tree-vect-slp.c (vect_get_constant_vectors): For
 160         VECTOR_BOOLEAN_TYPE_P assert op is fold_convertible_p to vector_type's
 161         element type.  If op is fold_convertible_p to vector_type's element
 162         type, use NOP_EXPR instead of VCE.
 163
 164 2016-01-08  Segher Boessenkool  <segher@kernel.crashing.org>
 165
 166         PR rtl-optimization/67778
 167         PR rtl-optimization/68634
 168         PR rtl-optimization/68909
 169         * shrink-wrap.c (try_shrink_wrapping): Add comment.  Don't pop
 170         block from the stack until done with it.  Remove a superfluous
 171         bitmap set.  Remove a superfluous bitmap test.
 172
 173 2016-01-07  Martin Sebor  <msebor@redhat.com>
 174
 175         PR c/68966
 176         * doc/extend.texi (__atomic Builtins, __sync Builtins): Document
 177         constraint on the type of arguments.
 178
 179 2016-01-07  Andreas Tobler  <andreast@gcc.gnu.org>
 180
 181         * config/arm/freebsd.h: Rename SUBTARGET_OVERRIDE_OPTIONS to
 182         SUBTARGET_OVERRIDE_INTERNAL_OPTIONS. Adjust to check
 183         unaligned_access on the gcc_options set.
 184         * config/arm/arm.c (arm_option_override_internal): Use
 185         SUBTARGET_OVERRIDE_INTERNAL_OPTIONS.
 186
 187 2016-01-07  Uros Bizjak  <ubizjak@gmail.com>
 188
 189         PR target/69140
 190         * config/i386/i386.c (ix86_frame_pointer_required): Enable
 191         frame pointer for TARGET_64BIT_MS_ABI when stack is misaligned.
 192
 193 2016-01-07  Uros Bizjak  <ubizjak@gmail.com>
 194
 195         Revert
 196         2016-01-06  Uros Bizjak  <ubizjak@gmail.com>
 197
 198         PR target/69140
 199         * config/i386/i386.c (ix86_expand_prologue): Declare fs.sp_valid
 200         depending on frame_pointer_needed before remaining integer and SSE
 201         registers are saved.
 202
 203 2016-01-07  Sandra Loosemore <sandra@codesourcery.com>
 204
 205         PR 1078
 206         * doc/extend.texi (Nvidia PDX Function Attributes): New section.
 207
 208 2016-01-07  H.J. Lu  <hongjiu.lu@intel.com>
 209
 210         PR target/69171
 211         * config/i386/sse.md (<sse>_sqrt<mode>2<mask_name><round_name>):
 212         Use the "xBm" constraint.
 213         (float<sseintvecmodelower><mode>2<mask_name><round_name):
 214         Likewise.
 215         (sse_cvtsi2ss<round_name>): Use round_nimm_scalar_predicate.
 216         (sse_cvtsi2ssq<round_name>): Likewise.
 217         (sse_cvtss2si<round_name>): Likewise.
 218         (sse_cvtss2siq<round_name>): Likewise.
 219         (sse2_cvtsi2sdq<round_name>): Likewise.
 220         (sse2_cvtsd2si<round_name>): Likewise.
 221         (sse2_cvtsd2siq<round_name>): Likewise.
 222         * config/i386/subst.md (round_nimm_scalar_predicate): New
 223         predicate.
 224
 225 2015-12-15  Bernd Schmidt  <bschmidt@redhat.com>
 226
 227         PR middle-end/67639
 228         * varasm.c (make_decl_rtl): Mark invalid register vars as
 229         DECL_EXTERNAL.
 230
 231         PR rtl-optimization/66206
 232         * bt-load.c (find_btr_use): Change first arg to be a pointer to an rtx.
 233         All callers changed.
 234
 235 2016-01-07  Jakub Jelinek  <jakub@redhat.com>
 236
 237         PR tree-optimization/69141
 238         * tree-ssa-pre.c: Include langhooks.h.
 239         (eliminate_dom_walker::before_dom_children): Use
 240         lang_hooks.decl_printable_name instead of
 241         cgraph_node::get ()->name ().
 242
 243         PR middle-end/68960
 244         * gimple-expr.c (copy_var_decl): If var has DECL_USER_ALIGN set, copy
 245         it and DECL_ALIGN too.
 246
 247 2016-01-06  Robert Suchanek  <robert.suchanek@imgtec.com>
 248
 249         * config/mips/mips-ftypes.def: Sort to lexicographical order.
 250
 251 2016-01-06  Uros Bizjak  <ubizjak@gmail.com>
 252
 253         PR target/69140
 254         * config/i386/i386.c (ix86_expand_prologue): Declare fs.sp_valid
 255         depending on frame_pointer_needed before remaining integer and SSE
 256         registers are saved.
 257
 258 2015-01-06  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
 259
 260         * config/rs6000/vsx.md (*p9_vecload_<mode>): Replace VSX_M
 261         mode iterator with VSX_M2.
 262         (*p9_vecstore_<mode>): Likewise.
 263         (*vsx_le_permute_<mode>): Restrict to !TARGET_P9_VECTOR.
 264         (*vsx_le_perm_load_<mode> for VSX_LE_128): Likewise.
 265         (*vsx_le_perm_store_<mode> for VSX_LE_128): Likewise.
 266         (define_split for VSX_LE128 stores): Likewise.
 267         (define_peephole2 for TImode LE swaps): Likewise.
 268         (define_split for VSX_LE128 post-reload stores): Likewise.
 269
 270 2016-01-06  Marek Polacek  <polacek@redhat.com>
 271
 272         PR sanitizer/69099
 273         * convert.c (convert_to_integer_1): Adjust call to
 274         ubsan_instrument_float_cast.  Use NULL_TREE instead of NULL.
 275         * ubsan.c (ubsan_instrument_float_cast): Drop the ARG parameter.  Use
 276         EXPR instead of ARG.
 277         * ubsan.h (ubsan_instrument_float_cast): Adjust declaration.
 278
 279 2016-01-05  Sandra Loosemore <sandra@codesourcery.com>
 280
 281         PR 1078
 282         * doc/extend.texi (RL78 Variable Attributes): New section.
 283
 284 2016-01-05  Marek Polacek  <polacek@redhat.com>
 285
 286         PR c/69104
 287         * builtins.c (get_memmodel): Use expansion point location rather than
 288         the input location.  Call warning_at rather than warning.
 289         (expand_builtin_atomic_compare_exchange): Likewise.
 290         (expand_builtin_atomic_load): Likewise.
 291         (expand_builtin_atomic_store): Likewise.
 292         (expand_builtin_atomic_clear): Likewise.
 293
 294 2016-01-05  H.J. Lu  <hongjiu.lu@intel.com>
 295
 296         PR target/68991
 297         * config/i386/i386.c (ix86_expand_vector_logical_operator):
 298         Replace nonimmediate_operand with vector_operand.
 299         * config/i386/predicates.md (vector_operand): New predicate.
 300         (general_vector_operand): Replace nonimmediate_operand with
 301         vector_operand.
 302         * config/i386/sse.md: Replace nonimmediate_operand with
 303         vector_operand and m constraint with Bm constraint on SSE
 304         patterns with 16-byte memory operand.
 305         * config/i386/subst.md (round_nimm_predicate): Replace
 306         nonimmediate_operand with vector_operand.
 307         (round_saeonly_nimm_predicate): Likewise.
 308         (round_saeonly_nimm_scalar_predicate): New.
 309
 310 2016-01-05  H.J. Lu  <hongjiu.lu@intel.com>
 311
 312         PR target/68991
 313         * config/i386/constraints.md (Bm): New constraint.
 314         * config/i386/predicates.md (vector_memory_operand): New
 315         predicate.
 316         * config/i386/sse.md: Replace xm with xBm in plusminus and
 317         any_logic patterns.
 318
 319 2016-01-05  Sandra Loosemore <sandra@codesourcery.com>
 320
 321         PR 1078
 322         * doc/extend.texi (V850 Function Attributes): New section.
 323         (V850 Variable Attributes): New section.
 324
 325 2016-01-05  Sandra Loosemore <sandra@codesourcery.com>
 326
 327         PR 1078
 328         * doc/extend.texi (MicroBlaze Function Attributes): Document
 329         interrupt_handler and fast_interrupt attributes.
 330
 331 2016-01-05  Sergei Trofimovich <siarheit@google.com>
 332
 333         PR other/60465
 334         * config/ia64/ia64.c (ia64_expand_load_address): Use gprel64
 335         for local symbolic operands.
 336         * config/ia64/predicates.md (local_symbolic_operand64): New
 337         predicate.
 338
 339 2016-01-05  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 340
 341         PR rtl-optimization/68651
 342         * combine.c (combine_simplify_rtx): Canonicalize x + x into
 343         x << 1.
 344
 345 2016-01-05  Nathan Sidwell  <nathan@acm.org>
 346
 347         * alias.c (compare_base_decls): Use symtab_node::get.
 348
 349 2016-01-05  Nick Clifton  <nickc@redhat.com>
 350
 351         PR target/68770
 352         * ira-costs.c (copy_cost): Initialise the t_icode field of the
 353         secondary_reload_info structure.
 354
 355         PR target/66655
 356         * config/i386/cygming.h (MAKE_DECL_ONE_ONLY): Define to use weak
 357         decls if weak support is available.
 358
 359 2016-01-04  Martin Sebor  <msebor@redhat.com>
 360
 361         * doc/invoke.texi (Warning Options): Document -Winvalid-memory-model.
 362
 363 2016-01-04  Michael Meissner  <meissner@linux.vnet.ibm.com>
 364
 365         * config/rs6000/rs6000-cpus.def (ISA_3_0_MASKS_SERVER): Add
 366         OPTION_MASK_P9_DFORM.
 367
 368         * config/rs6000/constraints.md (wo constraint): New constraint for
 369         ISA 3.0 (power9).
 370
 371         * config/rs6000/rs6000.c (rs6000_debug_reg_global): Add support
 372         for wo constraint.
 373         (rs6000_init_hard_regno_mode_ok): Likewise.
 374
 375         * config/rs6000/rs6000.h (r6000_reg_class_enum): Add support for
 376         wo constraint.
 377
 378         * config/rs6000/altivec.md (altivec_vperm_<mode>): Clean up vperm
 379         expanders not to have constraints.  Add support for ISA 3.0 xxperm
 380         instruction.  Add support for fusing xxlor with xxperm.
 381         (altivec_vperm_<mode>_internal): Likewise.
 382         (altivec_vperm_v8hiv16qi): Likewise.
 383         (altivec_vperm_<mode>v16q): Likewise.
 384         (altivec_vperm_<mode>_uns): Likewise.
 385         (vperm_v8hiv4si): Likewise.
 386         (vperm_v16qiv8hi): Likewise.
 387
 388         * doc/md.texi (RS/6000 constraints): Document wo constraint.
 389
 390 2016-01-04  Jakub Jelinek  <jakub@redhat.com>
 391
 392         Update copyright years.
 393
 394         * gcc.c (process_command): Update copyright notice dates.
 395         * gcov-dump.c (print_version): Ditto.
 396         * gcov.c (print_version): Ditto.
 397         * gcov-tool.c (print_version): Ditto.
 398         * gengtype.c (create_file): Ditto.
 399         * doc/cpp.texi: Bump @copying's copyright year.
 400         * doc/cppinternals.texi: Ditto.
 401         * doc/gcc.texi: Ditto.
 402         * doc/gccint.texi: Ditto.
 403         * doc/gcov.texi: Ditto.
 404         * doc/install.texi: Ditto.
 405         * doc/invoke.texi: Ditto.
 406
 407 2016-01-04  Eric Botcazou  <ebotcazou@adacore.com>
 408
 409         * config/arm/arm.c (aapcs_vfp_allocate_return_reg): Treat all integer
 410         modes larger than TImode as TImode if NEON is not enabled.
 411
 412 2016-01-04  Eric Botcazou  <ebotcazou@adacore.com>
 413
 414         PR target/69100
 415         * config/sparc/sparc.h (FUNCTION_ARG_REGNO_P): Return true in 64-bit
 416         mode for %f0-%f31 only if TARGET_FPU.
 417
 418 2016-01-04  Eric Botcazou  <ebotcazou@adacore.com>
 419
 420         PR target/69072
 421         * config/sparc/sparc.c (scan_record_type): Take into account subfields
 422         to compute the PACKED_P predicate.
 423         (function_arg_record_value): Minor tweaks.
 424
 425 2016-01-04  Thomas Preud'homme  <thomas.preudhomme@arm.com>
 426
 427         * doc/install.texi (--with-multilib-list): Describe the meaning of the
 428         option for arm*-*-* targets.
 429
 430 2016-01-03  Sandra Loosemore <sandra@codesourcery.com>
 431
 432         * doc/extend.texi (Common Function Attributes): Move docs for
 433         MSP430-specific attributes to....
 434         (MSP430 Function Attributes): ...here.  Delete the redundant
 435         entries and copy-edit the remaining text.
 436         (MSP430 Variable Attributes): Use uniform format for index
 437         entries and add a cross-reference to the corresponding function
 438         attribute docs.
 439
 440 2016-01-03  Vladimír Čunát <vcunat@gmail.com>
 441
 442         * doc/invoke.texi (RS/6000 and PowerPC Options): Fix
 443         -finite-math typo.
 444         (x86 Options): Likewise.
 445
 446 2016-01-01  Sandra Loosemore  <sandra@codesourcery.com>
 447
 448         PR 1078
 449
 450         * extend.texi (Common Function Attributes) <no_stack_limit>: New.
 451         * invoke.texi (Code Gen Options) <-fno-stack-limit>: Add pointer
 452         to corresponding attribute.
 453
 454 2016-01-01  Sandra Loosemore  <sandra@codesourcery.com>
 455
 456         * doc/extend.texi (Common Function Attributes) <noplt>: Move
 457         to correct alphabetization of table.  Copy-edit and correct
 458         markup.
 459         <stack_protect>: Likewise.
 460         <target_clones>: Likewise.
 461         <simd>: Likewise.
 462         * doc/invoke.texi (Optimize Options) <-fstack-protector-explicit>:
 463         Correct punctuation.
 464         (Code Gen Options) <-fno-plt>: Copy-edit.
 465
 466 2016-01-01  Bernd Edlinger  <bernd.edlinger@hotmail.de>
 467
 468         PR target/68917
 469         * config/tilegx/tilegx.md (clzsi2): Don't create DI subregs of
 470         SI values.  Explicitly convert SI to DI and vice-versa.
 471
 472 2016-01-01  Jakub Jelinek  <jakub@redhat.com>
 473
 474         PR tree-optimization/69070
 475         * tree-ssa-math-opts.c (gimple_expand_builtin_pow): Only test
 476         REAL_VALUE_ISSIGNALING_NAN on arg0 if arg0 is a REAL_CST.
 477
 478         PR sanitizer/69055
 479         * ubsan.c (ubsan_instrument_float_cast): Call
 480         initialize_sanitizer_builtins.
 481
 482         PR target/69015
 483         * ifcvt.c (find_cond_trap): Give up if returnjump_p (jump).
 484 \f
 485 Copyright (C) 2016 Free Software Foundation, Inc.
 486
 487 Copying and distribution of this file, with or without modification,
 488 are permitted in any medium without royalty provided the copyright
 489 notice and this notice are preserved.