gcc/ChangeLog

   1 2012-02-04  Jakub Jelinek  <jakub@redhat.com>
   2
   3         PR rtl-optimization/52113
   4         * lower-subreg.c (decompose_multiword_subregs): Call recog_memoized
   5         even for decomposable shift/zext insns.
   6
   7 2012-02-03  Jakub Jelinek  <jakub@redhat.com>
   8             Zdenek Dvorak  <ook@ucw.cz>
   9
  10         PR rtl-optimization/52092
  11         * loop-unswitch.c (unswitch_single_loop): Call copy_rtx_if_shared
  12         on get_iv_value result.
  13
  14 2012-02-02  Andrew Pinski  <apinski@cavium.com>
  15
  16         PR middle-end/47982
  17         PR middle-end/43967
  18         * doc/libgcc.texi (__udivmoddi4/__udivmodti4): Fix documentation typo.
  19
  20 2012-02-02  Jakub Jelinek  <jakub@redhat.com>
  21
  22         PR middle-end/48071
  23         * diagnostic.c (diagnostic_finish): Remove trailing newlines.
  24
  25 2012-02-02  Vladimir Makarov  <vmakarov@redhat.com>
  26
  27         PR rtl-optimization/49800
  28         * haifa-sched.c (sched_init): Call regstat_init_n_sets_and_refs.
  29         (sched_finish): Call regstat_free_n_sets_and_refs.
  30
  31 2012-02-02  Jia Liu  <proljc@gmail.com>
  32
  33         * config/mips/mips-dspr2.md (mips_prepend): Mask operand 3 rather
  34         than operand 2.
  35
  36 2012-02-02 Jan Hubicka  <jh@suse.cz>
  37            Tom de Vries  <tom@codesourcery.com>
  38
  39         PR middle-end/51998
  40         * cgraphunit.c (cgraph_analyze_function): Break cyclic aliases.
  41         * varpool.c (varpool_analyze_pending_decls): Likewise.
  42
  43 2012-02-02  Sumanth G <sumanth.gundapaneni@kpitcummins.com>
  44             Jayant R Sonar <jayant.sonar@kpitcummins.com>
  45
  46         * config.gcc: Add cr16-* support.
  47
  48         * doc/extend.texi: Document cr16 extensions.
  49         * doc/install.texi: Document cr16 install.
  50         * doc/invoke.texi: Document cr16 options.
  51         * doc/md.texi: Document cr16 constraints.
  52
  53         * common/config/cr16/cr16-common.c: New file.
  54         * config/cr16/cr16.c: New file.
  55         * config/cr16/cr16.h: New file.
  56         * config/cr16/cr16.md: New file.
  57         * config/cr16/cr16.opt: New file.
  58         * config/cr16/cr16-protos.h: New file.
  59         * config/cr16/predicates.md: New file.
  60         * config/cr16/constraints.md: New file.
  61         * config/cr16/t-cr16: New file.
  62
  63 2012-02-02  Jakub Jelinek  <jakub@redhat.com>
  64
  65         PR target/52086
  66         * config/i386/i386.md (*addqi_2 peephole with SImode addition): Check
  67         that operands[2] is either immediate, or q_regs_operand.
  68
  69         PR tree-optimization/52073
  70         * tree-vect-stmts.c (vect_mark_relevant): When checking uses of
  71         a pattern stmt for pattern uses, ignore uses outside of the loop.
  72
  73 2012-02-01  Georg-Johann Lay  <avr@gjlay.de>
  74
  75         * config/avr/avr.c: Resolve all AS1 and AS2 macros.
  76         * config/avr/avr.h (AS1, AS2, AS2C, AS3): Remove.
  77         (OUT_AS1, OUT_AS2): Remove.
  78
  79 2012-02-01  Georg-Johann Lay  <avr@gjlay.de>
  80
  81         PR rtl-optimization/51374
  82         * combine.c (can_combine_p): Don't allow volatile_refs_p insns
  83         to cross other volatile_refs_p insns.
  84
  85 2012-02-01  Richard Guenther  <rguenther@suse.de>
  86
  87         * doc/invoke.texi (fno-inline): Clarify documentation.
  88         (finline-small-functions): Likewise.
  89         (finline-functions): Likewise.
  90         * common.opt (finline): Adjust comment and documentation.
  91         (finline-small-functions): Clarify documentation.
  92         (finline-functions): Likewise.
  93         (finline-functions-called-once): Likewise.
  94
  95 2012-02-01  Tristan Gingold  <gingold@adacore.com>
  96
  97         * c-typeck.c (composite_type): Keep mode for pointers.
  98
  99 2012-01-31  Richard Sandiford  <rdsandiford@googlemail.com>
 100
 101         * function.h (regno_reg_rtx): Adjust comment.
 102         * reginfo.c (init_reg_modes_target): Only use the previous mode
 103         if it fits within one register.  Remove MIPS comment.
 104
 105 2012-01-31  Jakub Jelinek  <jakub@redhat.com>
 106
 107         PR bootstrap/52058
 108         * combine.c (do_SUBST_LINK, SUBST_LINK): Guard with #ifndef HAVE_cc0.
 109
 110 2012-01-31  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
 111
 112         * config/s390/s390.md ("*ashr<mode>3_and"): Add missing z196 flag
 113         to srak instruction.
 114
 115 2012-01-31  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>
 116
 117         config/arm/thumb2.md (thumb2_mov_notscc): Use MVN for true
 118         condition.
 119
 120 2012-01-31  Jakub Jelinek  <jakub@redhat.com>
 121
 122         PR bootstrap/52041
 123         PR bootstrap/52039
 124         PR target/51974
 125         * ipa-prop.c (detect_type_change_1): Call ao_ref_init.
 126
 127 2012-01-31  Richard Guenther  <rguenther@suse.de>
 128
 129         PR tree-optimization/51528
 130         * tree-sra.c (sra_modify_assign): Avoid copy-in/out for aggregate
 131         assigns.
 132
 133 2012-01-31  Jakub Jelinek  <jakub@redhat.com>
 134
 135         PR bootstrap/52041
 136         PR bootstrap/52039
 137         PR target/51974
 138         * ree.c (add_removable_extension): Change def_map argument
 139         to unsigned *, store in def_map 1 + offset into *insn_list vector
 140         instead of pointers into the vector.
 141         (find_removable_extensions): Adjust caller.
 142
 143 2012-01-30  Georg-Johann Lay  <avr@gjlay.de>
 144
 145         * config/avr/avr.md: Resolve all AS1 and AS2 macros.
 146         Transform all "* quoted-c-code" to { c-code }.
 147         Remove redundant test for "optimize" in combine patterns.
 148         Move (include "avr-dimode.md") to end of file.
 149
 150 2012-01-30  Bin Cheng  <bin.cheng@arm.com>
 151
 152         PR target/51835
 153         * config/arm/arm.c (arm_libcall_uses_aapcs_base): Use correct ABI
 154         for __aeabi_d2iz/__aeabi_d2uiz with hard-float.
 155
 156 2012-01-30  Richard Guenther  <rguenther@suse.de>
 157
 158         PR tree-optimization/52028
 159         * tree-loop-distribution.c (ldist_gen): Properly update
 160         virtual SSA form.
 161
 162 2012-01-30  Jakub Jelinek  <jakub@redhat.com>
 163
 164         PR debug/52027
 165         * dwarf2out.c (dwarf2out_switch_text_section): Don't call
 166         set_cur_line_info_table if not emitting debug info.
 167
 168         PR tree-optimization/52046
 169         * tree-vect-patterns.c (check_bool_pattern): Give up if
 170         a comparison could throw.
 171
 172         PR debug/52048
 173         * tree-ssa-tail-merge.c (local_def): Ignore debug uses.
 174
 175 2012-01-30  Richard Guenther  <rguenther@suse.de>
 176
 177         PR tree-optimization/52045
 178         * tree-optimize.c (execute_cleanup_cfg_post_optimizing): Update
 179         SSA form if cfgcleanup did anything.
 180
 181 2012-01-30  Richard Guenther  <rguenther@suse.de>
 182
 183         PR tree-optimization/52045
 184         * ipa-inline-transform.c (inline_transform): Call execute_fixup_cfg
 185         before computing final todo.
 186
 187 2012-01-30  Richard Guenther  <rguenther@suse.de>
 188
 189         PR tree-optimization/51528
 190         * tree-sra.c (sra_modify_assign): Re-factor in preparation
 191         for PR51528 fix.
 192
 193 2012-01-30  Paolo Bonzini  <bonzini@gnu.org>
 194
 195         * df-problems.c (df_kill_notes): Check that the use refers
 196         to the note under examination.
 197
 198 2012-01-30  Eric Botcazou  <ebotcazou@adacore.com>
 199
 200         PR target/51920
 201         * config/sparc/sparc.c (vector_init_fpmerge): Remove INNER_MODE
 202         parameter and use short-lived pseudos.
 203         (vector_init_faligndata): Remove INNER_MODE parameter and use loop.
 204         (sparc_expand_vector_init): Const-ify local variables and adjust
 205         calls to above functions.
 206
 207 2012-01-30  Georg-Johann Lay  <avr@gjlay.de>
 208
 209         * config/avr/avr.c (out_movqi_mr_r): Fix length computation.
 210
 211 2012-01-29  Sandra Loosemore  <sandra@codesourcery.com>
 212
 213         * doc/invoke.texi: Make usage of "compile time" and
 214         "run time"/"runtime" consistent throughout the file.
 215
 216 2012-01-29  Uros Bizjak  <ubizjak@gmail.com>
 217
 218         * config/alpha/alpha.c (alpha_option_overrride): Default to
 219         full IEEE compliance mode for Go language.
 220
 221 2011-01-29  Tijl Coosemans  <tijl@coosemans.org>
 222
 223         * config/freebsd-spec.h [TARGET_LIBC_PROVIDES_SSP]
 224         (LINK_SSP_SPEC): Define.
 225
 226 2012-01-28  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
 227
 228         PR target/51871
 229         * config/pa/pa.c (pa_return_addr_rtx): Add support for PA2.0 export
 230         stubs.
 231
 232 2012-01-28  Sandra Loosemore  <sandra@codesourcery.com>
 233
 234         * doc/invoke.texi: Correct hyphenation of "floating point",
 235         "double precision", and related terminology throughout the file.
 236
 237 2012-01-28  Jakub Jelinek  <jakub@redhat.com>
 238
 239         PR target/52006
 240         * config/arm/arm.md (pic_add_dot_plus_eight peephole2): Use
 241         arm_general_register_operand predicate for operand 2 instead of
 242         register_operand.
 243
 244 2012-01-27  Ian Lance Taylor  <iant@google.com>
 245
 246         PR go/47656
 247         * builtins.def (BUILT_IN_INIT_HEAP_TRAMPOLINE): Define.
 248         * builtins.c (expand_builtin_init_trampoline): Add onstack
 249         parameter.  Change caller.
 250         (expand_builtin): Handle BUILT_IN_INIT_HEAP_TRAMPOLINE.
 251         * tree.c (build_common_builtin_nodes): Declare
 252         __builtin_init_heap_trampoline.
 253
 254 2012-01-27  Georg-Johann Lay  <avr@gjlay.de>
 255
 256         * config/avr/avr-protos.h (lpm_reg_rtx, lpm_addr_reg_rtx,
 257         tmp_reg_rtx, zero_reg_rtx, all_regs_rtx, rampz_rtx): Make global.
 258         * config/avr/avr.c: Ditto.
 259         (avr_regnames): Remove because unused.
 260         * config/avr/avr.md (*cpse.ne): New peephole.
 261         (*cpse.eq): New peephole from former cpse peepholes.
 262
 263 2012-01-27  Michael Eager  <eager@eagercon.com>
 264
 265         * config/microblaze.c (microblaze_emit_compare): Correct
 266         test after pcmp instruction.
 267
 268 2012-01-27  Richard Guenther  <rguenther@suse.de>
 269
 270         PR tree-optimization/52020
 271         * tree-sra.c (sra_modify_assign): Do not transform clobbers.
 272
 273 2012-01-27  Richard Guenther  <rguenther@suse.de>
 274
 275         * ipa-pure-const.c (check_stmt): Clobbers do not make a
 276         function non-const/pure.
 277
 278 2012-01-27  Richard Guenther  <rguenther@suse.de>
 279
 280         PR tree-optimization/50444
 281         * tree-sra.c (build_ref_for_offset): Properly adjust the
 282         MEM_REF type for unaligned accesses.
 283
 284 2012-01-27  Richard Guenther  <rguenther@suse.de>
 285
 286         PR tree-optimization/50444
 287         * expr.c (mem_ref_refers_to_non_mem_p): New function.
 288         (expand_assignment): Use it.  Properly handle misaligned
 289         bases when expanding stores to component references.
 290         (expand_expr_real_1): Use mem_ref_refers_to_non_mem_p and
 291         refactor that case.
 292
 293 2012-01-27  Andrey Belevantsev  <abel@ispras.ru>
 294
 295         PR middle-end/51389
 296         * Makefile.in (tree-data-ref.o): Depend on $(PARAMS_H).
 297         * tree-data-ref.h (find_data_references_in_loop): Remove declaration.
 298         * tree-data-ref.c (find_data_references_in_loop): Make static.
 299         (compute_all_dependences): Change return type to bool.  Bail out
 300         for too many datarefs in a loop.  Move the hunk resetting the data
 301         dependences vector from ...
 302         (compute_data_dependences_for_loop): ... here.  Account for
 303         compute_all_dependences returning false.
 304         (compute_data_dependences_for_bb): Likewise.
 305         * params.def (PARAM_LOOP_MAX_DATAREFS_FOR_DATADEPS): New param.
 306         * doc/invoke.texi (loop-max-datarefs-for-datadeps): Document it.
 307
 308 2012-01-27  Richard Guenther  <rguenther@suse.de>
 309
 310         PR middle-end/51959
 311         * expr.c (store_field): Use the alias-set of the scratch memory
 312         for storing to it.
 313
 314 2012-01-27  Tom de Vries  <tom@codesourcery.com>
 315
 316         PR tree-optimization/51990
 317         * tree-ssa-sccvn.c (copy_reference_ops_from_ref): Handle
 318         WITH_SIZE_EXPR.
 319         * tree-ssa-pre.c (create_component_ref_by_pieces_1): Same.
 320
 321 2012-01-27  Jakub Jelinek  <jakub@redhat.com>
 322
 323         PR debug/52001
 324         * var-tracking.c (reverse_op): Don't add any reverse operation
 325         if V already has any constant locations.
 326
 327 2012-01-27  Sandra Loosemore  <sandra@codesourcery.com>
 328
 329         * doc/invoke.texi: Correct usage of "command line" (noun)
 330         vs "command-line" (adjective) throughout.
 331
 332 2012-01-27  Sandra Loosemore  <sandra@codesourcery.com>
 333
 334         * doc/invoke.texi (Language Independent Options): Move
 335         -Wcoverage-mismatch blurb from here....
 336         (Warning Options): ...to here.
 337
 338 2012-01-27  Peter Bergner  <bergner@vnet.ibm.com>
 339
 340         * config/rs6000/rs6000.c (rs6000_option_override_internal):
 341         Set rs6000_always_hint to false for 476.
 342
 343 2012-01-27  Matthias Klose  <doko@ubuntu.com>
 344
 345         * gcc.c (add_sysrooted_prefix): Remove trailing dir separator from
 346           system root.
 347         * incpath.c (add_standard_paths): Likewise.
 348
 349 2012-01-27  Richard Henderson  <rth@redhat.com>
 350
 351         * config/m68k/m68k.c (TARGET_ATOMIC_TEST_AND_SET_TRUEVAL): New.
 352         * config/m68k/sync.md (atomic_test_and_set): Rename from
 353         sync_test_and_setqi and adjust the operands.
 354         (atomic_test_and_set_1): Rename from sync_test_and_setqi_1
 355         and unconditionally enable.
 356
 357 2012-01-27  Richard Henderson  <rth@redhat.com>
 358
 359         * config/sparc/sparc.c (TARGET_ATOMIC_TEST_AND_SET_TRUEVAL): New.
 360         * config/sparc/sync.md (atomic_test_and_set): Only handle QImode.
 361         (ldstub): Rename from ldstubqi.
 362         (ldstub<I24MODE>): Remove.
 363
 364 2012-01-27  Richard Henderson  <rth@redhat.com>
 365
 366         * target.def (TARGET_ATOMIC_TEST_AND_SET_TRUEVAL): New.
 367         * c-cppbuiltin.c (cpp_atomic_builtins): Define
 368         __GCC_ATOMIC_TEST_AND_SET_TRUEVAL.
 369         * doc/tm.texi.in (TARGET_ATOMIC_TEST_AND_SET_TRUEVAL): Add doc hook.
 370         * doc/tm.texi: Rebuild.
 371
 372 2012-01-27  Richard Henderson  <rth@redhat.com>
 373
 374         * optabs.c (gen_atomic_test_and_set): Remove default.
 375         (maybe_emit_atomic_test_and_set): Use maybe_expand_insn.
 376
 377 2012-01-26  Jakub Jelinek  <jakub@redhat.com>
 378
 379         PR rtl-optimization/51978
 380         * ree.c (make_defs_and_copies_lists): Change set_pat type to const_rtx.
 381         (combine_reaching_defs): Likewise.
 382         (struct re_info): Remove.
 383         (add_removable_extension): Remove x and data arguments,
 384         add insn, insn_list and def_map.  Use the arguments directly
 385         instead of using struct re_info.
 386         (find_removable_extensions): Don't call add_removable_extension
 387         through note_stores, instead just call it with single_set
 388         result if non-NULL.
 389         (find_and_remove_re): Pass curr_cand->expr instead of
 390         PATTERN (curr_cand->insn) as set_pat argument to combine_reaching_defs.
 391
 392 2012-01-26  Michael Matz  <matz@suse.de>
 393
 394         PR tree-optimization/46590
 395         * cfgexpand.c: Revert last change (r183305).
 396         * gimplify.c (gimplify_bind_expr): Add clobbers for all non-gimple
 397         regs.
 398         * tree-eh.c (cleanup_empty_eh): Try to optimize clobbers before
 399         checking for emptiness.
 400
 401 2012-01-26  Jakub Jelinek  <jakub@redhat.com>
 402
 403         PR middle-end/51895
 404         * expr.c (expand_expr_real_1): Handle BLKmode MEM_REF of
 405         non-addressable non-BLKmode base correctly.
 406
 407 2012-01-26  Michael Matz  <matz@suse.de>
 408
 409         PR tree-optimization/48794
 410         * tree-eh.c (remove_unreachable_handlers_no_lp): Don't remove
 411         regions referenced from RESX/EH_DISPATCH.
 412
 413 2012-01-26  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
 414
 415         * config/s390/s390.h: Make BRANCH_COST an option.
 416         * config/s390/s390.opt: New option -mbranch-cost.
 417
 418 2012-01-26  Richard Henderson  <rth@redhat.com>
 419
 420         Revert 2012-01-24 change:
 421         * trans-mem.c (requires_barrier): Do not instrument thread local
 422         variables and emit save/restore for them.
 423
 424 2012-01-25  Jakub Jelinek  <jakub@redhat.com>
 425
 426         PR middle-end/51986
 427         * sched-deps.c (sched_get_condition_with_rev_uncached): Don't test
 428         for pat == 0.
 429
 430 2012-01-25  Richard Sandiford  <rdsandiford@googlemail.com>
 431
 432         * config/mips/mips.c (mips_small_data_pattern_1): Don't process
 433         ASM_OPERANDS.
 434
 435 2012-01-25  Georg-Johann Lay  <avr@gjlay.de>
 436
 437         PR target/49868
 438         Rename __pgm to __flash.
 439         Rename __pgm1 to __flash1.
 440         Rename __pgm2 to __flash2.
 441         Rename __pgm3 to __flash3.
 442         Rename __pgm4 to __flash4.
 443         Rename __pgm5 to __flash5.
 444         Rename __pgmx to __memx.
 445         * doc/extend.texi (AVR Named Address Spaces)
 446         Rename address space names as indicated above.
 447         * config/avr/avr.c (avr_addrspace): Ditto.
 448
 449         * config/avr/avr-protos.h
 450         (avr_mem_pgmx_p): Rename to avr_mem_memx_p.
 451         (avr_mem_pgm_p): Rename to avr_mem_flash_p.
 452         * config/avr/predicates.md: Ditto.
 453         * config/avr/avr.c Ditto, and
 454         (avr_decl_pgmx_p): Rename to avr_decl_memx_p.
 455         (avr_decl_pgm_p): Rename to avr_decl_flash_p.
 456
 457         * config/avr/avr.h (ADDR_SPACE_PGM): Rename to ADDR_SPACE_FLASH.
 458         (ADDR_SPACE_PGM1): Rename to ADDR_SPACE_FLASH1.
 459         (ADDR_SPACE_PGM2): Rename to ADDR_SPACE_FLASH2.
 460         (ADDR_SPACE_PGM3): Rename to ADDR_SPACE_FLASH3.
 461         (ADDR_SPACE_PGM4): Rename to ADDR_SPACE_FLASH4.
 462         (ADDR_SPACE_PGM5): Rename to ADDR_SPACE_FLASH5.
 463         (ADDR_SPACE_PGMX): Rename to ADDR_SPACE_MEMX.
 464         * config/avr/avr.c: Ditto.
 465         * config/avr/avr.md: Ditto.
 466
 467 2012-01-25  Jason Merrill  <jason@redhat.com>
 468
 469         PR c++/51992
 470         * tree.c (find_decls_types_in_node): Walk gimple_call_fntype.
 471
 472 2012-01-25  Jakub Jelinek  <jakub@redhat.com>
 473
 474         PR tree-optimization/51987
 475         * tree-data-ref.c (get_references_in_stmt): Handle references in
 476         non-volatile GIMPLE_ASM.
 477
 478 2012-01-25  Richard Guenther  <rguenther@suse.de>
 479
 480         * tree-ssa-sccvn.c (vn_reference_eq): Also compare if both
 481         bases are dereferenced.
 482
 483 2012-01-25  Andrey Belevantsev  <abel@ispras.ru>
 484
 485         PR rtl-optimization/48374
 486         * sel-sched-ir.h (get_all_loop_exits): Check for zero successors.
 487
 488 2012-01-25  Andrey Belevantsev  <abel@ispras.ru>
 489
 490         * tree-predcom.c (tree_predictive_commoning_loop): Bail out when
 491         compute_data_dependences_for_loop returns false.
 492         * tree-parloops.c (loop_parallel_p): Likewise.
 493
 494 2012-01-25  Richard Guenther  <rguenther@suse.de>
 495
 496         * tree.h (get_pointer_alignment_1): Declare.
 497         * builtins.c (get_pointer_alignment_1): New function.
 498         (get_pointer_alignment): Use it.
 499
 500 2012-01-25  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>
 501
 502         PR rtl-optimization/48308
 503         * combine.c (enum undo_kind): Add UNDO_LINKS.
 504         (struct undo): Add member l to other_contents and where.
 505         (do_SUBST_LINK): New.
 506         (SUBST_LINK): New.
 507         (try_combine): Handle LOG_LINKS for the dummy i1 case.
 508         (undo_all): Handle UNDO_LINKS.
 509
 510 2012-01-25  Richard Henderson  <rth@redhat.com>
 511
 512         * optabs.c (maybe_emit_atomic_test_and_set): Allow non-QImode
 513         mem inputs.
 514
 515 2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>
 516
 517         * optabs.c (gen_atomic_test_and_set): Use each argument.
 518
 519 2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>
 520
 521         * config/mips/mips-ps-3d.md (mips_addr_ps, reduc_splus_v2sf)
 522         (mips_cvt_pw_ps, mips_cvt_ps_pw, mips_mulr_ps, mips_cabs_cond_<fmt>)
 523         (mips_cabs_cond_4s, mips_cabs_cond_ps, bc1any4t, bc1any4f, bc1any2t)
 524         (bc1any2f, mips_rsqrt1_<fmt>, mips_rsqrt2_<fmt>, mips_recip1_<fmt>)
 525         (mips_recip2_<fmt>): Require TARGET_MIPS3D rather than
 526         TARGET_PAIRED_SINGLE_FLOAT.
 527
 528 2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>
 529
 530         * doc/rtl.texi (MEM_IN_STRUCT_P, MEM_SCALAR_P): Delete.
 531         (in_struct, return_val): Remove MEM documentation.
 532         * rtl.h (rtx_def): Remove MEM meanings from in_struct and return_val.
 533         (MEM_IN_STRUCT_P, MEM_SCALAR_P): Delete.
 534         (MEM_COPY_ATTRIBUTES): Remove references to MEM_IN_STRUCT_P
 535         and MEM_SCALAR.
 536         * emit-rtl.c (set_mem_attributes_minus_bitpos): Likewise.
 537         * cfgexpand.c (add_alias_set_conflicts): Likewise.
 538         * expr.c (store_field): Likewise.
 539         * function.c (assign_stack_temp_for_type): Likewise.
 540         * ifcvt.c (noce_try_cmove_arith): Likewise.
 541         * reload1.c (reload): Likewise.
 542         * config/alpha/alpha.c (alpha_set_memflags_1): Likewise.
 543         (alpha_set_memflags): Likewise.
 544         * config/m32c/m32c.c (m32c_immd_dbl_mov): Nullify.
 545
 546 2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>
 547
 548         * rtl.h (true_dependence, canon_true_dependence): Remove varies
 549         parameter.
 550         * alias.c (fixed_scalar_and_varying_struct_p): Delete.
 551         (true_dependence_1, write_dependence_p, may_alias_p): Don't call it.
 552         (true_dependence_1, true_dependence, canon_true_dependence): Remove
 553         varies parameter.
 554         * cselib.c (cselib_rtx_varies_p): Delete.
 555         (cselib_invalidate_mem): Update call to canon_true_dependence.
 556         * dse.c (record_store, check_mem_read_rtx): Likewise.
 557         (scan_reads_nospill): Likewise.
 558         * cse.c (check_dependence): Likewise.
 559         (cse_rtx_varies_p): Delete.
 560         * expr.c (safe_from_p): Update call to true_dependence.
 561         * ira.c (validate_equiv_mem_from_store): Likewise.
 562         (memref_referenced_p): Likewise.
 563         * postreload-gcse.c (find_mem_conflicts): Likewise.
 564         * sched-deps.c (sched_analyze_2): Likewise.
 565         * store-motion.c (load_kills_store): Likewise.
 566         * config/frv/frv.c (frv_registers_conflict_p_1): Likewise.
 567         * gcse.c (mems_conflict_for_gcse_p): Likewise.
 568         (compute_transp): Update call to canon_true_dependence.
 569
 570 2012-01-25  Richard Henderson  <rth@redhat.com>
 571
 572         * optabs.c (CODE_FOR_atomic_test_and_set): Provide default.
 573         (maybe_emit_atomic_test_and_set): New.
 574         (expand_sync_lock_test_and_set): Use it.
 575         (expand_atomic_test_and_set): Likewise.
 576         * doc/extend.texi (__atomic_test_and_set): Adjust the docs to match
 577         the implementation; clarify implementation defined details.
 578         * doc/md.texi (atomic_test_and_set): Document.
 579
 580 2012-01-25  Richard Henderson  <rth@redhat.com>
 581
 582         * config/sparc/predicates.md (zero_or_v7_operand): Use match_code.
 583
 584 2012-01-25  Richard Henderson  <rth@redhat.com>
 585
 586         PR target/51968
 587         * config/arm/arm.c (neon_split_vcombine): Emit deleted note
 588         to effect no-op split.
 589
 590 2012-01-24  Aldy Hernandez  <aldyh@redhat.com>
 591
 592         PR lto/51698
 593         * builtin-types.def: (BT_CONST_DOUBLE_PTR): New.
 594         (BT_FN_VOID_PTR_CONST_PTR_SIZE): New.
 595         (BT_FN_VOID_PTR_INT_SIZE): New.
 596         (BT_FN_UINT_UINT_VAR): Remove.
 597         (BT_FN_UINT32_UINT32_VAR): New.
 598         (BT_FN_DOUBLE_VPTR): Remove.
 599         (BT_FN_DOUBLE_CONST_DOUBLE_PTR): New.
 600
 601         * gtm-builtins.def (_ITM_abortTransaction): Set return type to void.
 602         (_ITM_changeTransactionMode): Same.
 603         (_ITM_memmoveRtWt): Change return type to void.
 604         (_ITM_memcpyRtWt): Same.
 605         (_ITM_memsetW): Same.
 606         (_ITM_RaRD): Change types to double.
 607         (_ITM_RD): Same.
 608         (_ITM_RaWD): Same.
 609         (_ITM_RfWD): Same.
 610
 611         * builtins.def (DEF_TM_BUILTIN): Set BOTH_P to true.
 612
 613 2012-01-24  Aldy Hernandez  <aldyh@redhat.com>
 614             Patrick Marlier  <patrick.marlier@gmail.com>
 615
 616         * trans-mem.c (requires_barrier): Do not instrument thread local
 617         variables and emit save/restore for them.
 618
 619 2012-01-24  Jason Merrill  <jason@redhat.com>
 620
 621         PR c++/51812
 622         * cgraphunit.c (cgraph_decide_is_function_needed): Don't always
 623         output static aliases.
 624
 625 2012-01-24  Jakub Jelinek  <jakub@redhat.com>
 626
 627         PR driver/47249
 628         * common.opt (-pie, -shared, pie, shared): Change from Common to
 629         Driver.
 630         * gcc.c (display_help): Display help for -pie and -shared.
 631
 632 2012-01-24  Georg-Johann Lay  <avr@gjlay.de>
 633
 634         PR target/49868
 635         * doc/extend.texi (AVR Named Address Spaces): Move sample code up.
 636         Remove note on size/offset limitation.
 637         (AVR Variable Attributes): Add example how to read data located
 638         with progmem.  Refer to named address spaces.
 639         * doc/invoke.texi (AVR Options): Fix typo.
 640
 641 2012-01-24  Richard Guenther  <rguenther@suse.de>
 642
 643         Forward-port to trunk
 644         2010-09-21  Jakub Jelinek  <jakub@redhat.com>
 645
 646         PR middle-end/45678
 647         * expr.c (expand_expr_real_1) <case VIEW_CONVERT_EXPR>: If
 648         op0 isn't sufficiently aligned and there is movmisalignM
 649         insn for mode, use it to load op0 into a temporary register.
 650
 651 2012-01-24  Jakub Jelinek  <jakub@redhat.com>
 652
 653         PR target/51957
 654         * target.def (const_not_ok_for_debug_p): New hook.
 655         * doc/tm.texi.in (TARGET_CONST_NOT_OK_FOR_DEBUG_P): New hook
 656         documentation.
 657         * doc/tm.texi: Regenerated.
 658         * dwarf2out.c (const_ok_for_output_1): If
 659         targetm.const_not_ok_for_debug_p returns true, fail.
 660         * config/rs6000/rs6000.c (rs6000_const_not_ok_for_debug_p): New
 661         function.
 662         (TARGET_CONST_NOT_OK_FOR_DEBUG_P): Redefine.
 663
 664 2012-01-23  Kai Tietz  <ktietz@redhat.com>
 665
 666         PR target/51900
 667         * config/i386/predicates.md (symbolic_operand): Allow
 668         UNSPEC_PCREL as PIC expression for lea.
 669         * config/i386/winnt.c (i386_pe_binds_local_p): Reworked.
 670         * config/i386/i386.c (ix86_delegitimize_address): Handle
 671         UNSPEC_PCREL for none-MEM, too.
 672
 673 2012-01-23  Aldy Hernandez  <aldyh@redhat.com>
 674
 675         * trans-mem.c (ipa_tm_create_version): Set externally_visible.
 676         (ipa_tm_create_version_alias): Same.
 677
 678 2012-01-23  Uros Bizjak  <ubizjak@gmail.com>
 679
 680         PR libitm/51830
 681         * builtin-types.def (BT_FN_UINT_UINT_VAR): New.
 682         * gtm-builtins.def (BUILT_IN_TM_START): Declare as BT_FN_UINT_UINT_VAR.
 683
 684 2012-01-23  Aldy Hernandez  <aldyh@redhat.com>
 685             Patrick Marlier  <patrick.marlier@gmail.com>
 686             Iain Sandoe  <developer@sandoe-acoustics.co.uk>
 687
 688         PR lto/51916
 689         * lto-wrapper.c (run_gcc): Pass the LTO section name to
 690         simple_object_start_read.
 691
 692 2012-01-23  Richard Guenther  <rguenther@suse.de>
 693
 694
 695         PR tree-optimization/51895
 696         * tree-sra.c (decide_one_param_reduction): Avoid sub-optimal
 697         parameter decomposition into BLKmode components.
 698
 699 2012-01-23  Eric Botcazou  <ebotcazou@adacore.com>
 700
 701         * tree-ssa-structalias.c (intra_create_variable_infos): Do not create
 702         fake variables for restrict-qualified pointers whose pointed-to type
 703         contains a placeholder.
 704
 705 2012-01-23  Richard Guenther  <rguenther@suse.de>
 706
 707         PR tree-optimization/51949
 708         * ipa-split.c (execute_split_functions): Do not split malloc functions.
 709
 710 2012-01-23  Jakub Jelinek  <jakub@redhat.com>
 711
 712         PR rtl-optimization/51933
 713         * ree.c (transform_ifelse): Return true right away if dstreg is
 714         already wider or equal to cand->mode.
 715         (enum ext_modified_kind, struct ext_modified, ext_state): New types.
 716         (make_defs_and_copies_lists): Remove defs_list and copies_list
 717         arguments, add state argument, just truncate state->work_list
 718         instead of always allocating and freeing the vector.  Assert that
 719         get_defs succeeds instead of returning 2.  Changed return type to bool.
 720         (merge_def_and_ext): Add state argument.  If SET_DEST doesn't
 721         have ext_src_mode, see if it has been modified already with the
 722         right kind of extension and has been extended before from the
 723         ext_src_mode.  If SET_DEST is already wider or equal to cand->mode,
 724         just return true.  Remember the original mode in state->modified array.
 725         (combine_reaching_defs): Add state argument.  Don't allocate and
 726         free here def_list, copied_list and vec vectors, instead just
 727         VEC_truncate the vectors in *state.  Don't handle outcome == 2 here.
 728         (find_and_remove_re): Set DF_DEFER_INSN_RESCAN df flag.
 729         Add state variable, clear vectors in it, initialize state.modified
 730         if needed.  Free all the vectors at the end and state.modified too.
 731         Don't skip a candidate if the extension expression has been modified.
 732
 733 2012-01-22  Douglas B Rupp  <rupp@gnat.com>
 734
 735         PR target/47096
 736         * config.gcc: (i[34567]86-*-interix3*): Remove from obsolete
 737          configurations. Change triplet to i[34567]86-*-interix[3-9]*.
 738         (extra_options) interix.opt -> i386/interix.opt"
 739         (extra_objs):Add winnt-stubs.o
 740         * configure.ac: Add interix to target_os .comm on PE check.
 741         * configure: Regenerate.
 742         * config/interix3.h: Delete and move bits to..
 743         * config/interix.h: Delete and move bits to..
 744         * config/i386/i386-interix3.h: Delete and move bits to..
 745         * config/i386/i386-interix.h: ..here.
 746         (TARGET_CPU_DEFAULT): Remove redefinition.
 747         (TARGET_ASM_CONSTRUCTOR): Undefine.
 748         (SUBTARGET_SWITCHES): Define for ms-bitfields.
 749         (TARGET_OS_CPP_BUILTINS): Remove __OPENNT. Add __declspec.
 750         (PTRDIFF_TYPE): Define.
 751         (LONG_DOUBLE_TYPE_SIZE): Define.
 752         (LIBGCC2_LONG_DOUBLE_TYPE_SIZE): Define.
 753         (SUBTARGET_OVERRIDE_OPTIONS): Remove.
 754         (TARGET_SECTION_TYPE_FLAGS): Define.
 755         (ASM_DECLARE_FUNCTION_NAME): Define.
 756         (ASM_OUTPUT_EXTERNAL): Define.
 757         (ASM_OUTPUT_EXTERNAL_LIBCALL): Define.
 758         (ASM_OUTPUT_ALIGNED_BSS): Define.
 759         (PCC_BITFIELD_TYPE_MATTERS): Define.
 760         (USE_CONST_SECTION): Define.
 761         (SUBTARGET_ENCODE_SECTION_INFO): Remove.
 762         (TARGET_ASM_FUNCTION_RODATA_SECTION): Remove.
 763         (SUPPORTS_ONE_ONLY): Remove.
 764         (I386_PE_STRIP_ENCODING): Define.
 765         * config/interix.opt: Delete and move bits to..
 766         * config/i386/interix.opt: ..here. New.
 767         (mpe-aligned-commons): Add.
 768         * config/i386/t-interix: Add copyright header.
 769         (winnt-stubs.o): Add rule.
 770
 771 2012-01-22  Jason Merrill  <jason@redhat.com>
 772
 773         PR c++/51832
 774         * varpool.c (varpool_analyze_pending_decls): Copy DECL_EXTERNAL
 775         for extra name aliases.
 776
 777 2012-01-22  Eric Botcazou  <ebotcazou@adacore.com>
 778
 779         PR rtl-optimization/51924
 780         * ree.c (combine_set_extension): Improve debugging message.
 781         (combine_reaching_defs): Likewise.
 782         (get_defs): Rename confusingly named variable.
 783         (find_and_remove_re): Skip a candidate if the extension expression has
 784         been modified.
 785
 786 2012-01-21  Robert Millan  <rmh@gnu.org>
 787             Gerald Pfeifer  <gerald@pfeifer.com>
 788
 789         * config/kfreebsd-gnu.h (GNU_USER_DYNAMIC_LINKERX32): New macro.
 790         (GNU_USER_DYNAMIC_LINKER): Adjust indentation.
 791
 792 2012-01-20  Jakub Jelinek  <jakub@redhat.com>
 793
 794         PR tree-optimization/51914
 795         * tree-vect-stmts.c (vectorizable_conversion): For
 796         cvt_type && modifier == WIDEN, put temporary with cvt_type
 797         at the beginning of vec_dsts and set vec_dest to temporary
 798         with vectype_out.
 799
 800 2012-01-20  Eric Botcazou  <ebotcazou@adacore.com>
 801
 802         * cfgrtl.c (rtl_dump_bb): Do not dump insns for {ENTRY|EXIT}_BLOCK.
 803
 804 2011-01-20  Tijl Coosemans  <tijl@coosemans.org>
 805
 806         * config/i386/i386.c: Fix checks for !TARGET_MACHO.
 807         * config/rs6000/rs6000.c: Likewise.
 808
 809 2012-01-20  Jakub Jelinek  <jakub@redhat.com>
 810
 811         PR target/51915
 812         * config/arm/arm.c (arm_count_output_move_double_insns): Call
 813         output_move_double on a copy of operands array.
 814
 815 2012-01-20  Cary Coutant  <ccoutant@google.com>
 816             Dodji Seketeli  <dodji@redhat.com>
 817
 818         PR debug/45682
 819         * dwarf2out.c (copy_declaration_context): Return ref to parent
 820         of declaration DIE, if necessary.
 821         (remove_child_or_replace_with_skeleton): Add new parameter; update
 822         caller.  Place skeleton DIE under parent DIE of original declaration.
 823         Move call to copy_declaration_context to here ...
 824         (break_out_comdat_types): ... from here.
 825
 826 2012-01-20  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
 827
 828         PR rtl-optimization/51856
 829         * reload.c (find_reloads_subreg_address): Set the address_reloaded
 830         flag to reloaded.
 831
 832 2012-01-20  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>
 833
 834         PR target/51819
 835         * config/arm/arm.c (arm_print_operand): Correct output of alignment
 836         hints for neon loads and stores.
 837
 838 2012-01-20  Georg-Johann Lay  <avr@gjlay.de>
 839
 840         PR target/49868
 841         PR target/50887
 842         * doc/extend.texi (Named Address Spaces): Split into subsections.
 843         (AVR Named Address Spaces): New subsection.
 844         (M32C Named Address Spaces): New subsection.
 845         (RL78 Named Address Spaces): New subsection.
 846         (SPU Named Address Spaces): New subsection.
 847         (Variable Attributes): New anchor "AVR Variable Attributes".
 848         (AVR Variable Attributes): Rewrite and avoid wording
 849         "address space" in this context.
 850         * doc/invoke.texi (AVR Options): Rewrite and add documentation
 851         for -maccumulate-args, -mbranch-cost=, -mrelax, -mshort-calls.
 852         (AVR Built-in Macros): New subsubsection therein.
 853         * doc/md.texi (AVR constraints): Remove "C04", "R".
 854
 855 2012-01-20  Richard Guenther  <rguenther@suse.de>
 856
 857         PR tree-optimization/51903
 858         * tree-ssa-pre.c (eliminate): Properly purging of EH edges
 859         when removing stmts.
 860
 861 2012-01-20  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>
 862
 863         PR target/50313
 864         * config/arm/arm.c (arm_load_pic_register): Use
 865         gen_pic_load_addr_unified. Delete calls to gen_pic_load_addr_32bit
 866         , gen_pic_add_dot_plus_eight and gen_pic_add_dot_plus_four.
 867         (arm_pic_static_addr): Likewise.
 868         (arm_rtx_costs_1): Adjust cost for UNSPEC_PIC_UNIFIED.
 869         (arm_note_pic_base): Handle UNSPEC_PIC_UNIFIED.
 870         * config/arm/arm.md (UNSPEC_PIC_UNIFIED): Define.
 871         (pic_load_addr_unified): New.
 872
 873 2012-01-20  Andrey Belevantsev  <abel@ispras.ru>
 874
 875         PR target/51106
 876         * function.c (instantiate_virtual_regs_in_insn): Use
 877         delete_insn_and_edges when removing a wrong asm insn.
 878
 879 2012-01-19  Vladimir Makarov  <vmakarov@redhat.com>
 880
 881         PR rtl-optimization/40761
 882         * ira-int.h (struct ira_loop_tree_node): Add comment for member loop.
 883         Add new member loop_num.
 884         (IRA_LOOP_NODE_BY_INDEX): Modify the check.
 885         (ira_build): Remove the parameter.
 886
 887         * ira.c (ira_print_disposition): Use loop_num instead of loop->num.
 888         (ira.c): Do not build CFG loops for one region allocation.  Remove
 889         argument from ira_build call.
 890
 891         * ira-build.c (init_loop_tree_node): New function.
 892         (create_loop_tree_nodes): Use it.  Separate the case when CFG
 893         loops are not built.
 894         (more_one_region_p): Check current_loops.
 895         (finish_loop_tree_nodes): Separate the case when CFG loops are not
 896         built.
 897         (add_loop_to_tree): Process loop equal to NULL too.
 898         (form_loop_tree): Separate the case when CFG loops are not built.
 899         Use explicitly number for the root.
 900         (rebuild_regno_allocno_maps, create_loop_tree_node_allocnos): Add
 901         an assertion.
 902         (ira_print_expanded_allocno, loop_compare_func): Use loop_num
 903         instead of loop->num.
 904         (mark_loops_for_removal): Ditto.  Use loop_num instead of loop->num.
 905         (mark_all_loops_for_removal): Ditto.
 906         (remove_unnecessary_regions): Separate the case when CFG loops
 907         are not built.
 908         (ira_build): Remove the parameter.  Use explicit number of regions
 909         when CFG loops are not built.
 910
 911         * ira-color.c (print_loop_title): Separate the case for the root node.
 912         Use loop_num instead of loop->num.
 913         (move_spill_restore): Use loop_num instead of loop->num.
 914
 915         * ira-emit.c (setup_entered_from_non_parent_p): Add an assertion.
 916         (change_loop): Ditto.
 917         (change_loop): Use loop_num instead of loop->num.
 918
 919         * ira-lives.c (process_bb_node_lives): Ditto.
 920
 921         * ira-costs.c (print_allocno_costs, find_costs_and_classes): Ditto.
 922
 923         * ira-conflicts.c (print_allocno_conflicts): Ditto.
 924
 925 2012-01-19  Jakub Jelinek  <jakub@redhat.com>
 926
 927         PR libmudflap/40778
 928         * tree-mudflap.c (mf_artificial): New function.
 929         (execute_mudflap_function_ops, execute_mudflap_function_decls,
 930         mx_register_decls, mudflap_enqueue_decl): Use it.
 931
 932         PR target/51876
 933         * config/arm/neon.md (*neon_vswp<mode>): Fix up operand
 934         numbers in the insn pattern.
 935
 936 2012-01-19  Michael Matz  <matz@suse.de>
 937
 938         PR tree-optimization/46590
 939         * cfgexpand.c (add_scope_conflicts_1): New old_conflicts argument,
 940         use it in remembering which conflicts we already created.
 941         (add_scope_conflicts): Adjust call to above, (de)allocate helper
 942         bitmap.
 943
 944 2012-01-19  Aldy Hernandez  <aldyh@redhat.com>
 945
 946         PR lto/51280
 947         * lto-wrapper.c (run_gcc): Pass -fgnu_tm on.
 948         (merge_and_complain): Same.
 949
 950 2012-01-19  Jakub Jelinek  <jakub@redhat.com>
 951
 952         PR bootstrap/50237
 953         * config/initfini-array.h: Guard content of the header
 954         with #ifdef HAVE_INITFINI_ARRAY.
 955         * configure.ac: Move gcc_AC_INITFINI_ARRAY much later into the file.
 956         Add initfini-array.h to tm_file here.
 957         * acinclude.m4 (gcc_AC_INITFINI_ARRAY): For non-ia64 do a linker test.
 958         * config.gcc: Don't add initfini-array.h to tm_file here.
 959         * configure: Regenerated.
 960
 961 2012-01-19  Andrey Belevantsev  <abel@ispras.ru>
 962
 963         PR rtl-optimization/51505
 964         * df-problems.c (df_kill_notes): New parameter live. Update comment.
 965         Remove REG_EQUAL/REG_EQUIV notes referring to dead registers.
 966         (df_note_bb_compute): Update the call to df_kill_notes.
 967
 968 2012-01-18  Aldy Hernandez  <aldyh@redhat.com>
 969
 970         * trans-mem.c (requires_barrier): Remove call to is_global_var.
 971
 972 2012-01-18  Richard Guenther  <rguenther@suse.de>
 973
 974         * tree-ssa.c (useless_type_conversion_p): Remove special-casing
 975         of conversions to void *.
 976
 977 2012-01-17  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
 978             Richard Sandiford  <rdsandiford@googlemail.com>
 979
 980         PR middle-end/50325
 981         PR middle-end/51192
 982         * optabs.h (simplify_expand_binop): Declare.
 983         * optabs.c (simplify_expand_binop): Make global.
 984         * expmed.c (store_bit_field_1): Use simplify_expand_binop on big
 985         endian targets if the source cannot be exactly covered by word
 986         mode chunks.
 987
 988 2012-01-17  Jakub Jelinek  <jakub@redhat.com>
 989
 990         PR bootstrap/51872
 991         * hard-reg-set.h (struct hard_reg_set_container): New type.
 992         * target.h (struct hard_reg_set_container): Forward declare.
 993         * target.def (set_up_by_prologue): New target hook.
 994         * doc/tm.texi.in (TARGET_SET_UP_BY_PROLOGUE): Document it.
 995         * doc/tm.texi: Regenerated.
 996         * function.c (thread_prologue_and_epilogue_insns): Change
 997         set_up_by_prologue HARD_REG_SET into struct hard_reg_set_container.
 998         Call targetm.set_up_by_prologue on it.
 999         * config/rs6000/rs6000.c (rs6000_set_up_by_prologue): New function.
1000         (TARGET_SET_UP_BY_PROLOGUE): Redefine to it.
1001
1002 2012-01-17  Nick Clifton  <nickc@redhat.com>
1003
1004         * config/rx/rx.c (rx_can_use_simple_return): New function.
1005         * config/rx/rx-protos.h (rx_can_use_simple_return): Prototype.
1006         * config/rx/rx.md (return): Predicate on rx_can_use_simple_return.
1007
1008 2012-01-17  Richard Guenther  <rguenther@suse.de>
1009
1010         PR middle-end/51782
1011         * expr.c (expand_assignment): Take address-space information
1012         from the address operand of MEM_REF and TARGET_MEM_REF.
1013         (expand_expr_real_1): Likewise.
1014
1015 2012-01-17  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
1016
1017         * ira.c (do_reload): Make sure ira_dump_file is re-set if no
1018         reload dump is requested.
1019
1020 2012-01-17  Aldy Hernandez  <aldyh@redhat.com>
1021
1022         PR other/51165
1023         * trans-mem.c (requires_barrier): Call may_be_aliased.
1024
1025 2012-01-17  Jakub Jelinek  <jakub@redhat.com>
1026
1027         PR tree-optimization/51877
1028         * tree-ssa-tail-merge.c (gimple_equal_p): Don't return true whenever
1029         call arguments and fndecls compare equal, instead return false if they
1030         don't.  Return true only if lhs1 and lhs2 are either both NULL, or
1031         both SSA_NAMEs that are valueized the same, or they satisfy
1032         operand_equal_p.
1033
1034 2012-01-17  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1035
1036         * configure.ac (gcc_cv_target_dl_iterate_phdr): Only check on
1037         Solaris 11+.
1038         * configure: Regenerate.
1039
1040 2012-01-16  Jan Hubicka  <jh@suse.cz>
1041
1042         PR c/12245
1043         PR c++/14179
1044         * convert.c (convert_to_integer): Use fold_convert for
1045         converting an INTEGER_CST to integer type.
1046
1047 2012-01-16  Jason Merrill  <jason@redhat.com>
1048
1049         PR c++/14179
1050         * vec.c (vec_gc_o_reserve_1): Use ggc_round_alloc_size.
1051
1052 2012-01-16  Jakub Jelinek  <jakub@redhat.com>
1053
1054         PR bootstrap/51860
1055         * config/s390/s390.c (s390_chunkify_start): Don't skip
1056         call insns followed by NOTE_INSN_CALL_ARG_LOCATION note.  Skip
1057         NOTE_INSN_VAR_LOCATION and NOTE_INSN_CALL_ARG_LOCATION notes.
1058         If insn is followed by NOTE_INSN_VAR_LOCATION or
1059         NOTE_INSN_CALL_ARG_LOCATION notes, insert jump after all those notes.
1060         Don't use location of note insns.
1061
1062         PR tree-optimization/51865
1063         * tree-inline.c (tree_function_versioning): Call remap_decl
1064         on DECL_RESULT whenever it has VOID_TYPE_P type.
1065
1066 2012-01-15  Richard Sandiford  <rdsandiford@googlemail.com>
1067
1068         * config/mips/mips.c (mips16_build_call_stub): Don't use a stub
1069         for calls to locally-binding MIPS16 functions if only the return
1070         type uses float regs.
1071
1072 2012-01-15  Chung-Lin Tang  <cltang@codesourcery.com>
1073             Richard Sandiford  <rdsandiford@googlemail.com>
1074
1075         * config/mips/mips-protos.h (SYMBOL_FORCE_TO_MEM): Delete.
1076         (SYMBOL_32_HIGH): Likewise.
1077         (mips_output_tls_reloc_directive): Declare.
1078         * config/mips/mips.h (PIC_FUNCTION_ADDR_REGNUM): Move to mips.md.
1079         (mips_use_pcrel_pool_p, mips_lo_relocs, mips_hi_relocs): Declare.
1080         * config/mips/mips.c (mips_use_pcrel_pool_p): New variable.
1081         (mips_lo_relocs, mips_hi_relocs): Make extern.
1082         (mips16_stub_function): Move up file.
1083         (mips_classify_symbol): Remove SYMBOL_FORCE_TO_MEM handling.
1084         (mips_symbolic_constant_p): Likewise.  Remove SYMBOL_32_HIGH too.
1085         (mips_symbol_insns_1): Likewise.  Check mips_use_pcrel_pool_p.
1086         (mips_cannot_force_const_mem): Use mips_use_pcrel_pool_p instead of
1087         SYMBOL_FORCE_TO_MEM.  Only check mips_tls_symbol_ref_1 if it's false.
1088         (mips_get_tp): Add MIPS16 support.
1089         (mips_legitimize_tls_address): Remove MIPS16 sorry().
1090         Generalize DTPREL and TPREL handling.
1091         (mips_init_relocs): Initialize mips_use_pcrel_pool_p.
1092         Add MIPS16 TLS support.
1093         (mips_output_tls_reloc_directive): New function.
1094         (mips16_rewrite_pool_refs): Ignore UNSPEC_TLS_GET_TPs.
1095         * config/mips/predicates.md (symbolic_operand_with_high)
1096         (tls_reloc_operand): New predicates.
1097         (force_to_mem_operand): Use mips_use_pcrel_pool_p.
1098         * config/mips/mips.md (UNSPEC_UNSHIFTED_HIGH): New unspec.
1099         (PIC_FUNCTION_ADDR_REGNUM): Moved from mips.h.
1100         (*unshifted_high): New instruction.  Use it for MIPS16 high splitter.
1101         (consttable_tls_reloc, tls_get_tp_mips16_<mode>): New patterns.
1102         (*tls_get_tp_mips16_call_<mode>): Likewise.
1103
1104 2012-01-15  Uros Bizjak  <ubizjak@gmail.com>
1105
1106         PR rtl-optimization/51821
1107         * recog.c (peep2_find_free_register): Determine clobbered registers
1108         from insn pattern.
1109
1110 2012-01-14  Denis Chertykov  <chertykov@gmail.com>
1111
1112         PR target/50925
1113         * config/avr/avr-protos.h: Revert change of 2012-01-09.
1114         * config/avr/avr.c: Likewise.
1115         * config/avr/avr.h: Likewise.
1116
1117 2012-01-13  Ian Lance Taylor  <iant@google.com>
1118
1119         PR c++/50012
1120         * tree.h (TYPE_QUALS): Add cast to int.
1121         (TYPE_QUALS_NO_ADDR_SPACE): Likewise.
1122
1123 2012-01-13  Ian Lance Taylor  <iant@google.com>
1124
1125         * ipa-cp.c (ipa_get_indirect_edge_target): Add typecasts when
1126         comparing param_index to VEC_length result.
1127
1128 2012-01-13  Steven Bosscher  <steven@gcc.gnu.org>
1129
1130         * c-decl.c: Do not include tree-mudflap.h
1131         * tree-optimize.c: Likewise.
1132         * Makefile.in: Update dependencies.
1133
1134 2012-01-13  Richard Guenther  <rguenther@suse.de>
1135
1136         PR middle-end/8081
1137         * gimplify.c (gimplify_modify_expr_rhs): For calls with a
1138         variable-sized result always use RSO.
1139
1140 2012-01-12  DJ Delorie  <dj@redhat.com>
1141
1142         * cfgexpand.c (convert_debug_memory_address): Allow any valid
1143         pointer type, not just the default pointer type.
1144
1145 2012-01-09  Richard Henderson  <rth@redhat.com>
1146             Denis Chertykov  <chertykov@gmail.com>
1147
1148         PR target/50925
1149         * config/avr/avr-protos.h (avr_hard_regno_nregs): Declare.
1150         * config/avr/avr.c (avr_can_eliminate): Simplify.
1151         (avr_initial_elimination_offset): Likewise.
1152         (avr_prologue_setup_frame): Use hard_frame_pointer_rtx.
1153         (expand_epilogue): Likewise.
1154         (avr_legitimize_address): Gut.
1155         (avr_legitimize_reload_address): Use hard_frame_pointer_rtx.
1156         (avr_hard_regno_nregs): New.
1157         (avr_hard_regno_ok): Allow only Pmode for arg and frame_pointers.
1158         (avr_regno_mode_code_ok_for_base_b): Handle arg and frame pointers.
1159         * config/avr/avr.h (FIXED_REGISTERS): Adjust arg pointer,
1160         add soft frame pointer.
1161         (CALL_USED_REGISTERS): Likewise.
1162         (REG_CLASS_CONTENTS): Likewise.
1163         (REGISTER_NAMES): Likewise.
1164         (HARD_REGNO_NREGS): Use avr_hard_regno_nregs.
1165         (HARD_FRAME_POINTER_REGNUM): New.
1166         (FRAME_POINTER_REGNUM): Use soft frame pointer.
1167         (ELIMINABLE_REGS): Eliminate from the soft frame pointer,
1168         remove the HARD_FRAME_POINTER self-elimination.
1169
1170 2012-01-12  Georg-Johann Lay  <avr@gjlay.de>
1171
1172         PR target/51756
1173         * config/avr/avr.c (avr_encode_section_info): Test for absence of
1174         DECL_EXTERNAL when checking for initializers of progmem variables.
1175
1176 2012-01-12  Ira Rosen  <irar@il.ibm.com>
1177
1178         PR tree-optimization/51799
1179         * tree-vect-patterns.c (vect_recog_over_widening_pattern): Check
1180         that the last operation is a type demotion.
1181
1182 2012-01-12  Uros Bizjak  <ubizjak@gmail.com>
1183
1184         * config/i386/i386.md (*zero_extendsidi2_rex64): Correct movl template.
1185         (x86_shift<mode>_adj_1): Remove operand constraint from operand 3.
1186
1187 2012-01-11  Jakub Jelinek  <jakub@redhat.com>
1188
1189         PR bootstrap/51796
1190         * combine.c (distribute_notes): If i3 is a noreturn call,
1191         allow old_size to be equal to args_size and make sure the
1192         noreturn call gets REG_ARGS_SIZE note.
1193         * expr.c (fixup_args_size_notes): Put REG_ARGS_SIZE notes
1194         on noreturn calls even when the delta is 0.
1195
1196 2012-01-11  Nathan Sidwell  <nathan@acm.org>
1197
1198         * gcov.c (STRING_SIZE): Remove.
1199         (generate_results): Erase annotations for source files with no
1200         coverage information.
1201         (read_line): New.
1202         (output_lines): Use it.
1203
1204 2012-01-11  Eric Botcazou  <ebotcazou@adacore.com>
1205
1206         * gimple.h (gimplify_body): Remove first argument.
1207         * gimplify.c (copy_if_shared): Add DATA argument.  Do not create the
1208         pointer set here, instead just pass DATA to walk_tree.
1209         (unshare_body): Remove BODY_P argument and adjust.  Create the pointer
1210         set here and invoke copy_if_shared on the size trees of DECL_RESULT.
1211         (unvisit_body): Likewise, but with unmark_visited.
1212         (gimplify_body): Remove BODY_P argument and adjust.
1213         (gimplify_function_tree): Adjust call to gimplify_body.
1214         * omp-low.c (finalize_task_copyfn): Likewise.
1215
1216 2012-01-11  Eric Botcazou  <ebotcazou@adacore.com>
1217
1218         * tree.h (build_function_decl_skip_args): Add boolean parameter.
1219         (build_function_type_skip_args): Delete.
1220         * tree.c (build_function_type_skip_args): Make static and add
1221         SKIP_RETURN parameter.  Fix thinko in the handling of variants.
1222         (build_function_decl_skip_args): Add SKIP_RETURN parameter and
1223         pass it to build_function_type_skip_args.
1224         * cgraph.h (cgraph_function_versioning): Add boolean parameter.
1225         (tree_function_versioning): Likewise.
1226         * cgraph.c (cgraph_create_virtual_clone): Adjust call to
1227         build_function_decl_skip_args.
1228         * cgraphunit.c (cgraph_function_versioning): Add SKIP_RETURN parameter
1229         and pass it to build_function_decl_skip_args/tree_function_versioning.
1230         (cgraph_materialize_clone): Adjust call to tree_function_versioning.
1231         * ipa-inline-transform.c (save_inline_function_body): Likewise.
1232         * trans-mem.c (ipa_tm_create_version): Likewise.
1233         * tree-sra.c (modify_function): Ditto for cgraph_function_versioning.
1234         * tree-inline.c (declare_return_variable): Remove always-true test.
1235         (tree_function_versioning): Add SKIP_RETURN parameter.  If the function
1236         returns non-void and SKIP_RETURN, create a void-typed RESULT_DECL.
1237         * ipa-split.c (split_function): Skip the return value for the split
1238         part if it doesn't return.
1239
1240 2012-01-11  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
1241
1242         PR tree-optimization/49642
1243         * ipa-split.c (forbidden_dominators): New variable.
1244         (check_forbidden_calls): New function.
1245         (dominated_by_forbidden): Likewise.
1246         (consider_split): Check for forbidden dominators.
1247         (execute_split_functions): Initialize and free forbidden
1248         dominators info; call check_forbidden_calls.
1249
1250 2012-01-11  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>
1251
1252         * config/arm/arm.md (mov_notscc): Use MVN for false condition.
1253
1254 2012-01-11  Nick Clifton  <nickc@redhat.com>
1255
1256         * config/rx/rx.md (return): Define pattern.
1257
1258 2012-01-11  Richard Guenther  <rguenther@suse.de>
1259
1260         * doc/extend.texi (malloc attribute): Adjust according to
1261         implementation.
1262
1263 2012-01-10  Aldy Hernandez  <aldyh@redhat.com>
1264             Patrick Marlier  <patrick.marlier@gmail.com>
1265
1266         PR middle-end/51516
1267         * trans-mem.c (get_cg_data): Traverse aliases if requested.
1268         (ipa_tm_scan_calls_block): Update parameters to get_cg_data.
1269         (ipa_tm_note_irrevocable): Same.
1270         (ipa_tm_scan_irr_block): Same.
1271         (ipa_tm_decrement_clone_counts): Same.
1272         (ipa_tm_scan_irr_function): Same.
1273         (ipa_tm_create_version_alias): Same.
1274         (ipa_tm_create_version): Same.
1275         (ipa_tm_transform_calls_redirect): Same.
1276         (ipa_tm_transform_calls): Same.
1277         (ipa_tm_transform_transaction): Same.
1278         (ipa_tm_execute): Same.
1279
1280 2012-01-10  Richard Guenther  <rguenther@suse.de>
1281
1282         PR middle-end/51806
1283         * opts.c (common_handle_option): Handle -Werror.
1284
1285 2012-01-10  Andreas Schwab  <schwab@linux-m68k.org>
1286
1287         * config/m68k/sync.md ("atomic_compare_and_swap<mode>_1"): Fix
1288         operand number.
1289
1290 2012-01-10  Jason Merrill  <jason@redhat.com>
1291
1292         * doc/invoke.texi (C++ Dialect Options): Update -fabi-version=6
1293         information.
1294
1295 2012-01-10  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1296
1297         * configure.ac (gcc_cv_as_ix86_tlsgdplt): Check if linker
1298         supports R_386_TLS_GD_PLT reloc.
1299         (gcc_cv_as_ix86_tlsldmplt): Check if linker
1300         supports R_386_TLS_LDM_PLT reloc.
1301         * configure: Regenerate.
1302         * config.in: Regenerate.
1303
1304 2012-01-10  Georg-Johann Lay  <avr@gjlay.de>
1305
1306         PR target/49868
1307         Extend __pgmx semantics to linearize memory.
1308         * config/avr/avr.md (mov<mode>): Use avr_xload_libgcc_p to
1309         determine if code comes inline or from libgcc.
1310         (MOVMEM_r_d:HI): Add "w" to constraint for better preference.
1311         (movmem_qi, movmem_qi): Set constraint #2 to "n".
1312         (movmem_qi_elpm, movmem_hi_elpm): Remove insns.
1313         (movmemx_qi, movmemx_hi): New insns.
1314         (xload_<mode>_libgcc): Rewrite to new insn condition.
1315         (xload_<mode>): Remove insns.
1316         * config/avr/avr.c (avr_out_xload): Rewrite: Only need to handle
1317         cases that don't satisfy avr_xload_libgcc_p().
1318         (avr_addr_space_convert): Allow converting in any direction.
1319         (avr_addr_space_subset_p): Return always true.
1320         (avr_xload_libgcc_p): Rewrite to fit new __pgmx semantics.
1321         (avr_emit_movmemhi): Ditto.
1322         (avr_out_lpm): No need to handle ADDR_SPACE_PGMX any more.
1323         (avr_out_movmem): Ditto.
1324         (AVR_SYMBOL_FLAG_PROGMEM): New macro.
1325         (AVR_SYMBOL_SET_ADDR_SPACE): New macro.
1326         (AVR_SYMBOL_GET_ADDR_SPACE): New macro.
1327         (avr_encode_section_info): Encode 'progmem' in symbol flags.
1328         (output_reload_in_const): Don't zero-extend any 24-bit symbols.
1329
1330 2012-01-10  Richard Guenther  <rguenther@suse.de>
1331
1332         PR tree-optimization/50913
1333         * graphite-scop-detection.c (stmt_has_simple_data_refs_p):
1334         Require data-refs to be representable by Graphite with respect
1335         to any loop nest.
1336
1337 2012-01-10  Uros Bizjak  <ubizjak@gmail.com>
1338
1339         * config/i386/constraints.md ("L"): Return true for 0xffffffff.
1340         * config/i386/i386.c (*anddi_1): Emit AND with 0xffffffff as MOV.
1341
1342 2012-01-10  Tom de Vries  <tom@codesourcery.com>
1343
1344         PR rtl-optimization/51271
1345         * dwarf2cfi.c (scan_trace): Save and restore cur_row->reg_save when
1346         handling annulled branch.
1347
1348 2012-01-10  Richard Henderson  <rth@redhat.com>
1349
1350         * config/arm/arm.c (arm_vectorize_vec_perm_const_ok,
1351         TARGET_VECTORIZE_VEC_PERM_CONST_OK, neon_split_vcombine, MAX_VECT_LEN,
1352         struct expand_vec_perm_d, arm_expand_vec_perm_1, arm_expand_vec_perm,
1353         arm_evpc_neon_vuzp, arm_evpc_neon_vzip, arm_evpc_neon_vrev,
1354         arm_evpc_neon_vtrn, arm_evpc_neon_vtbl, arm_expand_vec_perm_const_1,
1355         arm_expand_vec_perm_const): New.
1356         * config/arm/arm-protos.h: Update.
1357         * config/arm/neon.md (UNSPEC_VCONCAT): New.
1358         (*neon_vswp<VDQX>): New.
1359         (neon_vcombine<VDX>): Use neon_split_vcombine.
1360         (neon_vtbl1v16qi, neon_vtbl2v16qi, neon_vcombinev16qi): New.
1361         * config/arm/vec-common.md (vec_perm_const<VALL>): New.
1362         (vec_perm<VE>): New.
1363
1364 2012-01-10  Richard Henderson  <rth@redhat.com>
1365
1366         * config/arm/arm.c (arm_gen_compare_reg): Add scratch argument;
1367         use it if reload_completed.
1368         (arm_legitimize_sync_memory, arm_emit, arm_insn_count, arm_count,
1369         arm_output_asm_insn, arm_process_output_memory_barrier,
1370         arm_output_memory_barrier, arm_ldrex_suffix, arm_output_ldrex,
1371         arm_output_strex, arm_output_it, arm_output_op2, arm_output_op3,
1372         arm_output_sync_loop, arm_get_sync_operand, FETCH_SYNC_OPERAND,
1373         arm_process_output_sync_insn, arm_output_sync_insn,
1374         arm_sync_loop_insns, arm_call_generator, arm_expand_sync): Remove.
1375         (arm_pre_atomic_barrier, arm_post_atomic_barrier): New.
1376         (arm_emit_load_exclusive, arm_emit_store_exclusive): New.
1377         (emit_unlikely_jump): New.
1378         (arm_expand_compare_and_swap, arm_split_compare_and_swap): New.
1379         (arm_split_atomic_op): New.
1380         * config/arm/arm-protos.h: Update.
1381         * config/arm/arm.h (enum arm_sync_generator_tag): Remove.
1382         (struct arm_sync_generator): Remove.
1383         * config/arm/arm.md (VUNSPEC_SYNC_COMPARE_AND_SWAP, VUNSPEC_SYNC_LOCK,
1384         VUNSPEC_SYNC_OP, VUNSPEC_SYNC_NEW_OP, VUNSPEC_SYNC_OLD_OP): Remove.
1385         (VUNSPEC_ATOMIC_CAS, VUNSPEC_ATOMIC_XCHG, VUNSPEC_ATOMIC_OP): New.
1386         (VUNSPEC_LL, VUNSPEC_SC): New.
1387         (sync_result, sync_memory, sync_required_value, sync_new_value,
1388         sync_t1, sync_t2, sync_release_barrier, sync_op): Remove.
1389         (attr length): Don't use arm_sync_loop_insns.
1390         (cbranch_cc, cstore_cc): Update call to arm_gen_compare_reg.
1391         (movsfcc, movdfcc): Likewise.
1392         * config/arm/constraints.md (Ua): New.
1393         * config/arm/prediates.md (mem_noofs_operand): New.
1394         (sync_compare_and_swap<QHSD>, sync_lock_test_and_set<QHSD>): Remove.
1395         (sync_clobber, sync_t2_reqd): Remove.
1396         (sync_<syncop><QHSD>, sync_nand<QHSD>): Remove.
1397         (sync_new_<syncop><QHSD>, sync_new_nand<QHSD>): Remove.
1398         (sync_old_<syncop><QHSD>, sync_old_nand<QHSD>): Remove.
1399         (arm_sync_compare_and_swap<SIDI>): Remove.
1400         (arm_sync_compare_and_swap<NARROW>): Remove.
1401         (arm_sync_lock_test_and_set<SIDI>): Remove.
1402         (arm_sync_lock_test_and_set<NARROW>): Remove.
1403         (arm_sync_new_<syncop><SIDI>): Remove.
1404         (arm_sync_new_<syncop><NARROW>): Remove.
1405         (arm_sync_new_nand<SIDI>): Remove.
1406         (arm_sync_new_nand<NARROW>): Remove.
1407         (arm_sync_old_<syncop><SIDI>): Remove.
1408         (arm_sync_old_<syncop><NARROW>): Remove.
1409         (arm_sync_old_nand<SIDI>): Remove.
1410         (arm_sync_old_nand<NARROW>): Remove.
1411         (*memory_barrier): Merge arm_output_memory_barrier.
1412         (atomic_compare_and_swap<QHSD>): New.
1413         (atomic_compare_and_swap<NARROW>_1): New.
1414         (atomic_compare_and_swap<SIDI>_1): New.
1415         (atomic_exchange<QHSD>): New.
1416         (cas_cmp_operand, cas_cmp_str): New.
1417         (atomic_op_operand, atomic_op_str): New.
1418         (atomic_<syncop><QHSD>, atomic_nand<QHSD>): New.
1419         (atomic_fetch_<syncop><QHSD>, atomic_fetch_nand<QHSD>): New.
1420         (atomic_<syncop>_fetch<QHSD>, atomic_nand_fetch<QHSD>): New.
1421         (arm_load_exclusive<NARROW>): New.
1422         (arm_load_exclusivesi, arm_load_exclusivedi): New.
1423         (arm_store_exclusive<QHSD>): New.
1424
1425 2012-01-09  Michael Meissner  <meissner@linux.vnet.ibm.com>
1426
1427         * config/rs6000/rs6000.c (rs6000_init_hard_regno_mode_ok): Add DF
1428         reload patterns if -mvsx-scalar-memory.
1429
1430         * config/rs6000/vsx.md (vsx_xscvspdp): Allow xscvspdp to be
1431         generated, even -mno-vsx-scalar-double was used.
1432         (vsx_xscvdpsp_scalar): Likewise.
1433         (vsx_xscvspdp_scalar2): Likewise.
1434
1435 2012-01-09  Tom de Vries  <tom@codesourcery.com>
1436             Andrew Pinski  <apinski@cavium.com>
1437
1438         PR debug/51471
1439         * reorg.c (fill_slots_from_thread): Don't speculate
1440         frame-related insns.
1441
1442 2012-01-09  Richard Sandiford  <rdsandiford@googlemail.com>
1443
1444         * sched-int.h (bb_note): Move to...
1445         * basic-block.h: ...here.
1446         * haifa-sched.c (bb_note): Move to...
1447         * cfgrtl.c: ...here.
1448         * function.c (next_block_for_reg): New function.
1449         (move_insn_for_shrink_wrap): Likewise.
1450         (prepare_shrink_wrap): Rewrite to use the above.
1451
1452 2012-01-09  Aldy Hernandez  <aldyh@redhat.com>
1453
1454         * gimple.c (is_gimple_non_addressable): Remove.
1455         * gimple.h: Remove is_gimple_non_addressable.
1456         * gimplify.c (gimplify_modify_expr_rhs): Use is_gimple_reg instead of
1457         is_gimple_non_addressable.
1458         * trans-mem.c (expand_assign_tm): Same.
1459
1460 2012-01-09  Richard Guenther  <rguenther@suse.de>
1461
1462         PR tree-optimization/51775
1463         * tree-ssa-sccvn.c (visit_use): Value-number throwing stmts.
1464         * tree-ssa-pre.c (eliminate): Properly fixup EH info.
1465
1466 2012-01-09  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>
1467
1468         * config/arm/arm-cores.def (cortex-a15): Use cortex_a15_tune for
1469         tuning parameters.
1470         * config/arm/arm.c (arm_cortex_a15_tune): New static variable.
1471
1472 2012-01-09  Richard Guenther  <rguenther@suse.de>
1473
1474         * tree-streamer-out.c (write_ts_optimization): Fix spelling.
1475
1476 2012-01-08  Jan Hubicka  <jh@suse.cz>
1477
1478         PR tree-optimize/51680
1479         * ipa-inline-analyss.c (evaluate_properties_for_edge): Fix condition
1480         on when known_vals needs to be computed; cleanup.
1481
1482 2012-01-08  Jan Hubicka  <jh@suse.cz>
1483
1484         PR tree-optimize/51694
1485         * ipa-cp.c (ipa_get_indirect_edge_target): Add bounds checks.
1486
1487 2012-01-08  Jonathan Wakely  <jwakely.gcc@gmail.com>
1488
1489         * doc/cpp.texi (Predefined Macros): __STRICT_ANSI__ is defined
1490         for -std=c++98 and -std=c++11 too.
1491
1492 2012-01-08  Chung-Lin Tang  <cltang@codesourcery.com>
1493
1494         * cfgloop.c (cancel_loop): Add free() of bbs array.
1495
1496 2012-01-07  Jan Hubicka  <jh@suse.cz>
1497
1498         PR tree-optimization/51600
1499         * ipa-inline-analysis.c (estimate_edge_devirt_benefit): Disable code
1500         that benefits small functions.
1501
1502 2012-01-07  Jan Hubicka  <jh@suse.cz>
1503
1504         * ipa-inline.c (want_inline_small_function_p): Fix formating.
1505
1506 2012-01-07  Jan Hubicka  <jh@suse.cz>
1507
1508         PR tree-optimization/51680
1509         * ipa-inline.c (want_inline_small_function_p): Be more lax on functions
1510         whose inlining reduce unit size.
1511
1512 2012-01-07  Alexandre Oliva  <aoliva@redhat.com>
1513
1514         PR bootstrap/51725
1515         * cselib.c (new_elt_loc_list): Promote addr_list to canonical node.
1516         Add canonical node to containing_mem chain after the non-canonical
1517         one, even if there weren't any locs to propagate.
1518         (remove_useless_values): Keep only canonical values.
1519         (add_mem_for_addr, cselib_lookup_mem): Canonicalize addr.
1520         (cselib_invalidate_mem): Likewise.  Ensure v is canonical, and
1521         canonicalize mem_chain elements that are not discarded.
1522
1523 2012-01-06  Jakub Jelinek  <jakub@redhat.com>
1524
1525         PR target/47333
1526         * cgraphunit.c (cgraph_optimize): Call output_weakrefs
1527         before emitting functions.
1528
1529         PR gcov-profile/50127
1530         * bb-reorder.c (partition_hot_cold_basic_blocks): Call
1531         clear_aux_for_blocks.
1532
1533 2012-01-06  Alexandre Oliva  <aoliva@redhat.com>
1534
1535         PR debug/51746
1536         * cselib.c (cselib_hash_rtx): Hash incoming VALUEs too.
1537
1538 2012-01-06  Arnaud Charlet  <charlet@adacore.com>
1539
1540         * c-decl.c (ext_block): Moved up.
1541         (collect_all_refs, for_each_global_decl): Take ext_block into account.
1542
1543 2012-01-06  Han Shen  <shenhan@google.com>
1544
1545         Translate built-in include paths for sysroot.
1546         * Makefile.in (gcc_gxx_include_dir_add_sysroot): New.
1547         (PREPROCESSOR_DEFINES): Define GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT.
1548
1549         * cppdefault.c (cpp_include_defaults): Replace hard coded "0" with
1550         GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT for "add_sysroot" field.
1551
1552         * configure.ac (AC_SUBST): Add gcc_gxx_include_dir_add_sysroot to
1553         control whether sysroot should be prepended to gxx include dir.
1554
1555         * configure: Regenerate.
1556
1557 2012-01-06  Torvald Riegel  <triegel@redhat.com>
1558
1559         PR rtl-optimization/51771
1560         * builtin-attrs.def (ATTR_RETURNS_TWICE, ATTR_TM_NOTHROW_RT_LIST): New.
1561         * gtm-builtins.def (BUILT_IN_TM_START): Add returns-twice attrib.
1562
1563 2012-01-05  Eric Botcazou  <ebotcazou@adacore.com>
1564
1565         PR tree-optimization/51315
1566         * tree-sra.c (tree_non_aligned_mem_for_access_p): New predicate.
1567         (build_accesses_from_assign): Use it instead of tree_non_aligned_mem_p.
1568
1569 2012-01-05  Uros Bizjak  <ubizjak@gmail.com>
1570
1571         PR target/51681
1572         * config/ia64/ia64.c (expand_vec_perm_shrp): Use correct operands
1573         for shrp pattern.  Correctly handle and fixup shift variable.
1574         Return false when shift > nelt for BYTES_BIG_ENDIAN target.
1575
1576 2012-01-05  Jakub Jelinek  <jakub@redhat.com>
1577
1578         PR debug/51762
1579         * calls.c (emit_call_1): For noreturn calls force a REG_ARGS_SIZE
1580         note when !ACCUMULATE_OUTGOING_ARGS.
1581
1582 2012-01-05  Eric Botcazou  <ebotcazou@adacore.com>
1583
1584         * tree-vrp.c (extract_range_from_binary_expr_1): Remove duplicated
1585         condition.
1586         (extract_range_from_unary_expr_1): Avoid useless computations.
1587
1588 2012-01-05  Jakub Jelinek  <jakub@redhat.com>
1589
1590         PR rtl-optimization/51767
1591         * cfgrtl.c (force_nonfallthru_and_redirect): Force addition
1592         of jump_block and add an extra edge for degenerated asm gotos.
1593
1594         PR middle-end/51768
1595         * stmt.c (check_unique_operand_names): Don't ICE during error
1596         reporting if i is from labels chain.
1597
1598         PR middle-end/44777
1599         * profile.c (branch_prob): Split bbs that have exit edge
1600         and need a fake entry edge too.
1601
1602 2012-01-05  Jan Hubicka  <jh@suse.cz>
1603
1604         PR middle-end/49710
1605         * cfgloopmanip.c (remove_path): Walk loop hiearchy upwards when
1606         unlooping loops.
1607
1608 2012-01-05  Richard Guenther  <rguenther@suse.de>
1609
1610         PR lto/50490
1611         * tree-streamer-out.c (write_ts_optimization): New function.
1612         (streamer_write_tree_body): Call it.
1613         * tree-streamer-in.c (lto_input_ts_optimization): New function.
1614         (streamer_read_tree_body): Call it.
1615         * lto-streamer-out.c (lto_is_streamable): Handle OPTIMIZATION_NODE.
1616
1617 2012-01-05  Jakub Jelinek  <jakub@redhat.com>
1618
1619         PR middle-end/51761
1620         * gimple.h (struct gimplify_ctx): Add in_cleanup_point_expr field.
1621         * gimplify.c (gimplify_cleanup_point_expr): Save and set
1622         in_cleanup_point_expr before gimplify_stmt call and restore it
1623         afterwards.
1624         (gimplify_target_expr): Don't add {CLOBBER} cleanup if
1625         in_cleanup_point_expr is false.
1626
1627 2012-01-05  Richard Guenther  <rguenther@suse.de>
1628
1629         PR middle-end/51764
1630         * common.opt (Wmudflap, fmudflap, fmudflapth, fmudflapir): Move
1631         to c.opt.
1632         * toplev.c (process_options): Reject combining mudflap and LTO.
1633         * tree-nomudflap.c (nogo): Use sorry instead of internal_error.
1634
1635 2012-01-05  Richard Guenther  <rguenther@suse.de>
1636
1637         PR tree-optimization/51760
1638         * tree-ssa-ccp.c (likely_value): Drop UNDEFINED to CONSTANT,
1639         not VARYING.
1640         (bit_value_unop): Handle UNDEFINED operands.
1641         (bit_value_binop): Likewise.
1642
1643 2012-01-05  Georg-Johann Lay  <avr@gjlay.de>
1644
1645         * config/avr/avr.c (avr_replace_prefix): Remove.
1646         (avr_asm_named_section): Use ACONCAT instead of avr_replace_prefix.
1647         (avr_asm_function_rodata_section): Ditto.
1648         (avr_asm_select_section): Ditto.
1649
1650 2012-01-05  Marcus Shawcroft  <marcus.shawcroft@arm.com>
1651
1652         * reload.c (find_reloads): Adjust LABEL_NUSES on REG_LABEL_OPERAND
1653         insertion.
1654
1655 2012-01-05  Jakub Jelinek  <jakub@redhat.com>
1656
1657         PR bootstrap/51648
1658         * tree-cfg.c (need_fake_edge_p): Return true also for noreturn
1659         calls that have any non-fake successor edges.
1660
1661         PR debug/51746
1662         * var-tracking.c (add_stores): For COND_EXEC allow oval to be NULL.
1663
1664 2012-01-04  Eric Botcazou  <ebotcazou@adacore.com>
1665
1666         PR tree-optimization/51624
1667         * tree-sra.c (build_ref_for_model): When replicating a chain of
1668         COMPONENT_REFs, stop as soon as the offset would become negative.
1669
1670 2012-01-04  Jakub Jelinek  <jakub@redhat.com>
1671
1672         PR debug/51695
1673         * dwarf2out.c (output_loc_list): For now drop >= 64KB expressions
1674         in .debug_loc on the floor.
1675
1676 2012-01-04  Andrew Pinski  <apinski@cavium.com>
1677
1678         * doc/invoke.texi (-march=@var{arch}): Add octeon+ and octeon2.
1679
1680 2012-01-04  Andrew Pinski  <apinski@cavium.com>
1681             Adam Nemet  <anemet@caviumnetworks.com>
1682
1683         * config/mips/mips.md (size): Add SI and DI.
1684         (SIZE): New mode attribute.
1685         (U): New code attribute.
1686         * config/mips/mips-dsp.md (mips_lbux): Use gen_mips_lbux_extsi.
1687         (mips_lbux_<mode>): Delete.
1688         (mips_l<SHORT:size><u>x_ext<GPR:mode>_<P:mode>): New pattern.
1689         (mips_lhx): Use gen_mips_lhx_extsi.
1690         (mips_lhx_<mode>): Delete.
1691         (mips_lwx): Delete.
1692         (mips_l<size>x): New expand.
1693         (mips_lwx_<mode>): Delete.
1694         (mips_l<GPR:size>x_<P:mode>): New pattern.
1695         (*mips_lw<u>x_<P:mode>_ext): Likewise.
1696         * config/mips/mips-ftypes.def: Add DI f(POINTER, SI) function type.
1697         * config/mips/mips.c (mips_lx_address_p): New function.
1698         (mips_rtx_costs <case MEM>): Call mips_lx_address_p.
1699         (dsp64): New availability predicate.
1700         (mips_builtins): Add an entry for __builtin_mips_ldx.
1701         * config/mips/mips.h (ISA_HAS_LBX): New define.
1702         (ISA_HAS_LBUX): Likewise.
1703         (ISA_HAS_LHX): Likewise.
1704         (ISA_HAS_LHUX): Likewise.
1705         (ISA_HAS_LWX): Likewise.
1706         (ISA_HAS_LWUX): Likewise.
1707         (ISA_HAS_LDX): Likewise.
1708         * doc/extend.texi (__builtin_mips_ldx): Document.
1709
1710 2012-01-04  Tristan Gingold  <gingold@adacore.com>
1711
1712         * config/vms/xm-vms.h (HOST_LONG_FORMAT, HOST_PTR_PRINTF): Define
1713         when long pointers are used.
1714         * config.build (*-*-*vms*): Handle all OpenVMS targets.
1715         (alpha64-dec-*vms*, alpha*-dec-*vms*)
1716         (ia64-hp-*vms*): Remove.
1717         * config/vms/xm-vms64.h: Delete.
1718
1719 2012-01-04  Aldy Hernandez  <aldyh@redhat.com>
1720
1721         PR middle-end/51472
1722         * trans-mem.c (expand_assign_tm): Handle TM_MEMMOVE loads correctly.
1723
1724 2012-01-04  Aldy Hernandez  <aldyh@redhat.com>
1725
1726         * opts.c (finish_options): Remove duplicate sorry.
1727
1728 2012-01-04  Aldy Hernandez  <aldyh@redhat.com>
1729
1730         PR middle-end/51696
1731         * trans-mem.c (diagnose_tm_1): Display indirect calls with no name
1732         correctly.
1733
1734 2012-01-04  Richard Guenther  <rguenther@suse.de>
1735
1736         PR middle-end/51750
1737         * tree.c (size_low_cst): New function.
1738         * tree.h (size_low_cst): Declare.
1739         * fold-const.c (fold_comparison): Use it to extract the low
1740         part of the POINTER_PLUS_EXPR offset.
1741
1742 2012-01-04  Georg-Johann Lay  <avr@gjlay.de>
1743
1744         Fix clearing ZERO_REG
1745         * config/avr/avr.md (cc): Add alternative "ldi".
1746         (movqi_insn): Use it in cc attribute.
1747         * config/avr/avr.c (notice_update_cc): Handle CC_LDI.
1748         (output_reload_in_const): Use CLR to move 0 to ZERO_REG.
1749         (output_reload_insisf): Use ZERO_REG to pre-clear register.
1750
1751 2012-01-04  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
1752
1753         * configure: Regenerate.
1754
1755 2012-01-04  Richard Guenther  <rguenther@suse.de>
1756
1757         PR tree-optimization/49651
1758         * tree-ssa-structalias.c (type_can_have_subvars): New function.
1759         (var_can_have_subvars): Use it.
1760         (get_constraint_for_1): Only consider subfields if there can be any.
1761
1762 2012-01-03  Jakub Jelinek  <jakub@redhat.com>
1763
1764         PR bootstrap/51725
1765         * cselib.c (new_elt_loc_list): When moving locs from one cselib_val
1766         to its new canonical_cselib_val and the cselib_val was in
1767         first_containing_mem chain, but the canonical_cselib_val was not,
1768         add the latter into the chain.
1769         (cselib_invalidate_mem): Compare canonical_cselib_val of
1770         addr_list chain elt with v.
1771
1772         PR pch/51722
1773         * dwarf2out.c (dwarf2out_start_source_file, dwarf2out_define,
1774         dwarf2out_undef): Allocate e.info using ggc_strdup instead
1775         of xstrdup.
1776         (output_macinfo_op): Don't ggc_strdup fd->filename.
1777         (optimize_macinfo_range): Allocate grp_name using XALLOCAVEC,
1778         then ggc_strdup it.  Don't free inc->info or cur->info.
1779         (output_macinfo): Don't free ref->info or file->info.
1780
1781 2012-01-03  Ira Rosen  <irar@il.ibm.com>
1782
1783         PR tree-optimization/51269
1784         * tree-vect-loop-manip.c (set_prologue_iterations): Make
1785         first_niters a pointer.
1786         (slpeel_tree_peel_loop_to_edge): Likewise.
1787         (vect_do_peeling_for_loop_bound): Update call to
1788         slpeel_tree_peel_loop_to_edge.
1789         (vect_gen_niters_for_prolog_loop): Don't compute wide_prolog_niters
1790         here.  Remove it from the parameters list.
1791         (vect_do_peeling_for_alignment): Update calls and compute
1792         wide_prolog_niters.
1793
1794 2012-01-03  Richard Guenther  <rguenther@suse.de>
1795
1796         PR tree-optimization/51070
1797         * tree-loop-distribution.c (stmt_has_scalar_dependences_outside_loop):
1798         Properly handle calls.
1799
1800 2012-01-03  Richard Guenther  <rguenther@suse.de>
1801
1802         PR tree-optimization/51692
1803         * tree-ssa-dce.c (eliminate_unnecessary_stmts): Do not remove
1804         the LHS of allocation stmts.
1805
1806 2012-01-03  Olivier Hainque  <hainque@adacore.com>
1807
1808         * system.h: Prior to #define, #undef fopen and freopen unconditionally.
1809
1810 2012-01-03  Olivier Hainque  <hainque@adacore.com>
1811
1812         * collect2.c (main): In AIX specific computations for vector
1813         insertions, use CONST_CAST2 to cast from char ** to const char **.
1814
1815 2012-01-03  Richard Guenther  <rguenther@suse.de>
1816
1817         PR debug/51650
1818         * dwarf2out.c (dwarf2out_finish): Always create a DIE for
1819         the context of a limbo DIE when it does not already exist.
1820
1821 2012-01-03  Jakub Jelinek  <jakub@redhat.com>
1822
1823         PR tree-optimization/51719
1824         * value-prof.c (gimple_ic): When indirect call isn't noreturn,
1825         but direct call is, clear direct call's lhs and don't add fallthrough
1826         edge from dcall_bb to join_bb and PHIs.
1827
1828 2012-01-03  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
1829
1830         * config/s390/s390.md ("*cmp<mode>_ccs"): Fix comment mentioning
1831         the instructions emitted by the pattern.
1832         ("*TDC_insn_<mode>"): Add comment.
1833
1834 2012-01-03  Richard Guenther  <rguenther@suse.de>
1835
1836         PR middle-end/51730
1837         * fold-const.c (fold_comparison): Properly canonicalize
1838         tree offset and HOST_WIDE_INT bit position.
1839
1840 2012-01-02  Uros Bizjak  <ubizjak@gmail.com>
1841
1842         * config/ia64/ia64.c (expand_vec_perm_broadcast): Use correct
1843         operands for extzv pattern.
1844
1845 2012-01-02  Jakub Jelinek  <jakub@redhat.com>
1846
1847         PR bootstrap/51725
1848         * cselib.c (add_mem_for_addr): Call canonical_cselib_val
1849         on mem_elt first.
1850
1851 2012-01-02  Sandra Loosemore  <sandra@codesourcery.com>
1852
1853         * doc/invoke.texi (-flto and related options): Copy-edit.
1854
1855 2012-01-02  Richard Sandiford  <rdsandiford@googlemail.com>
1856
1857         * config/mips/mips.md (loadgp_newabi_<mode>): Add missing earlyclobber.
1858
1859 2012-01-02  Jakub Jelinek  <jakub@redhat.com>
1860
1861         * config/i386/sse.md (*avx2_gatherdi<mode>_3, *avx2_gatherdi<mode>_4):
1862         New patterns.
1863
1864 2012-01-02  Richard Sandiford  <rdsandiford@googlemail.com>
1865
1866         * expr.h (move_by_pieces_ninsns): Declare.
1867         * expr.c (move_by_pieces_ninsns): Make external.
1868         * config/mips/mips-protos.h (mips_move_by_pieces_p): Declare.
1869         (mips_store_by_pieces_p): Likewise.
1870         * config/mips/mips.h (MOVE_BY_PIECES_P): Call mips_move_by_pieces_p.
1871         (STORE_BY_PIECES_P): Likewise mips_store_by_pieces_p.
1872         * config/mips/mips.c (mips_move_by_pieces_p): New function.
1873         (mips_store_by_pieces_p): Likewise.
1874
1875 2012-01-02  Jakub Jelinek  <jakub@redhat.com>
1876
1877         * passes.c (register_one_dump_file): Free full_name.
1878
1879         * reload1.c (reload): Don't allocate reg_max_ref_width here.
1880         (calculate_elim_costs_all_insns): Free offsets_at and
1881         offsets_known_at at the end and clear the pointers.
1882
1883 2012-01-02  Georg-Johann Lay  <avr@gjlay.de>
1884
1885         * config/avr/avr.opt (-mbranch-cost): Fix double definition of
1886         this option introduced in r180739.
1887
1888 2012-01-02  Georg-Johann Lay  <avr@gjlay.de>
1889
1890         PR target/51345
1891         * config.gcc (tm_file target=avr]): Add avr/avr-multilib.h
1892         (tmake_file target=avr): Add avr/t-multilib.
1893
1894         * config/avr/avr-c.c (avr_cpu_cpp_builtins): Use AVR_HAVE_8BIT_SP
1895         to built-in define __AVR_HAVE_8BIT_SP__, __AVR_HAVE_16BIT_SP__.
1896         * config/avr/genmultilib.awk: New file.
1897         * config/avr/t-multilib: New auto-generated file.
1898         * config/avr/multilib.h: New auto-generated file.
1899         * config/avr/t-avr (AVR_MCUS): New variable.
1900         (genopt.sh): Use it.
1901         (s-mlib): Depend on t-multilib.
1902         (t-multilib, multilib.h): New dependencies.
1903         (s-avr-mlib): New rule to build t-multilib, multilib.h from AVR_MCUS.
1904         (MULTILIB_OPTIONS): Remove.
1905         (MULTILIB_MATCHES): Remove.
1906         (MULTILIB_DIRNAMES): Remove.
1907         (MULTILIB_EXCEPTIONS): Remove:
1908         * config/avr/genopt.sh: Don't use hard coded file name;
1909         pass AVR_MCUS from t-avr instead.
1910
1911 2012-01-02  Georg-Johann Lay  <avr@gjlay.de>
1912
1913         * config/avr/avr.c (avr_out_ashrpsi3): Fix "case 31" to "case 23".
1914
1915 2012-01-02  Georg-Johann Lay  <avr@gjlay.de>
1916
1917         Implement light-weight DImode support.
1918         * config/avr/avr-dimode.md: New file.
1919         * config/avr/avr.md: Include it.
1920         (adjust_len): Add plus64, compare64.
1921         (HIDI): Remove code iterator.
1922         (code_stdname): New code attribute.
1923         (rotx, rotsmode): Remove DI.
1924         (rotl<mode>3, *rotw<mode>, *rotb<mode>): Use HISI instead of HIDI
1925         as code iterator.
1926         * config/avr/avr-protos.h (avr_have_dimode): New.
1927         (avr_out_plus64, avr_out_compare64): New.
1928         * config/avr/avr.c (avr_out_compare): Handle DImode.
1929         (avr_have_dimode): New variable definition and initialization.
1930         (avr_out_compare64, avr_out_plus64): New functions.
1931         (avr_out_plus_1): Use simplify_unary_operation to negate xval.
1932         (adjust_insn_length): Handle ADJUST_LEN_COMPARE64, ADJUST_LEN_PLUS64.
1933         (avr_compare_pattern): Skip DImode comparisons.
1934
1935 2012-01-02  Revital Eres  <revital.eres@linaro.org>
1936
1937         * ddg.c (def_has_ccmode_p): New function.
1938         (add_cross_iteration_register_deps,
1939         create_ddg_dep_from_intra_loop_link): Call it.
1940
1941 2012-01-02  Richard Guenther  <rguenther@suse.de>
1942
1943         PR other/51679
1944         * invoke.texi (fassociative-math): Remove spurious paranthesis.
1945
1946 2012-01-01  Jakub Jelinek  <jakub@redhat.com>
1947
1948         * gcc.c (process_command): Update copyright notice dates.
1949         * gcov.c (print_version): Likewise.
1950         * gcov-dump.c (print_version): Likewise.
1951         * mips-tfile.c (main): Likewise.
1952         * mips-tdump.c (main): Likewise.
1953
1954 2012-01-01  Ira Rosen  <irar@il.ibm.com>
1955
1956         PR tree-optimization/51704
1957         * tree-vect-slp.c (vect_detect_hybrid_slp_stmts): Check that
1958         a use is inside the basic block or loop before accessing its vect info.
1959
1960 2012-01-01  Jan Hubicka  <jhjh@suse.cz>
1961
1962         PR rtl-optimization/51069
1963         * cfgloopmanip.c (remove_path): Removing path making irreducible
1964         region unconditional makes BB part of the region.
1965
1966 2012-01-01  Jakub Jelinek  <jakub@redhat.com>
1967
1968         PR tree-optimization/51683
1969         * tree-ssa-propagate.c (substitute_and_fold): Don't optimize away
1970         calls with side-effects.
1971         * tree-ssa-ccp.c (ccp_fold_stmt): Likewise.
1972 \f
1973 Copyright (C) 2012 Free Software Foundation, Inc.
1974
1975 Copying and distribution of this file, with or without modification,
1976 are permitted in any medium without royalty provided the copyright
1977 notice and this notice are preserved.