gcc/ChangeLog

   1 2012-02-07  Jakub Jelinek  <jakub@redhat.com>
   2
   3         PR middle-end/52074
   4         * expr.c (expand_expr_addr_expr_1): For CONSTANT_CLASS_P or CONST_DECL
   5         if modifier < EXPAND_SUM call force_operand on the result.
   6
   7 2012-02-07  Joern Rennecke  <joern.rennecke@embecosm.com>
   8
   9         * config/epiphany/epiphany.h (ASM_DECLARE_FUNCTION_SIZE): Redefine,
  10         adding __forwarder_dst__ prefix if a forwarder_section attribute is
  11         present.
  12         (epiphany_function_type): Replace types for specific interrupts with
  13         EPIPHANY_FUNCTION_INTERRUPT.
  14         (EPIPHANY_INTERRUPT_P): Update.
  15         * config/epiphany/epiphany.c (epiphany_handle_forwarder_attribute):
  16         New static function.
  17         (epiphany_attribute_table) <interrupt>: min_len is 0, max_len is 9.
  18         <disinterrupt>: Affects type identity.
  19         (epiphany_handle_interrupt_attribute): Handle variable number of
  20         arguments.
  21         (epiphany_compute_function_type): Update for new
  22         epiphany_function_type definition.
  23         (epiphany_expand_prologue): Don't save (reg:DI GPR_0) for interrupt
  24         handlers with a longcall forwarder.
  25         (epiphany_start_function): Handle multiple interrupt arguments and/or
  26         forwarder_section attribute.
  27
  28 2012-02-07  Alan Modra  <amodra@gmail.com>
  29
  30         PR target/52107
  31         * config/rs6000/rs6000.c (rs6000_emit_move): Don't create DImode
  32         subregs of TFmode.
  33
  34 2012-02-06  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
  35
  36         PR tree-optimization/50969
  37         * tree-vect-stmts.c (vect_model_store_cost): Correct statement cost to
  38         use vec_perm rather than vector_stmt.
  39         (vect_model_load_cost): Likewise.
  40         * config/i386/i386.c (ix86_builtin_vectorization_cost): Change cost of
  41         vec_perm to be the same as other vector statements.
  42         * config/rs6000/rs6000.c (rs6000_builtin_vectorization_cost): Revise
  43         cost of vec_perm for TARGET_VSX.
  44
  45 2012-02-06  Richard Guenther  <rguenther@suse.de>
  46
  47         PR tree-optimization/52115
  48         * tree-sra.c (access_has_replacements_p): New function.
  49         (sra_modify_assign): Use it to decide whether a use is uninitialized.
  50
  51 2012-02-06  Patrick Marlier  <patrick.marlier@gmail.com>
  52
  53         PR middle-end/52047
  54         * trans-mem.c (expand_call_tm): Add an assertion.
  55         * calls.c (flags_from_decl_or_type): Add ECF_TM_PURE to 'no vops'
  56         functions.
  57
  58 2012-02-06  Richard Guenther  <rguenther@suse.de>
  59
  60         PR tree-optimization/50955
  61         * tree-ssa-loop-ivopts.c (get_computation_cost_at): Artificially
  62         raise cost of expressions that replace an address with an
  63         expression based on a different pointer.
  64
  65 2012-02-06  Jakub Jelinek  <jakub@redhat.com>
  66
  67         PR target/52129
  68         * calls.c (mem_overlaps_already_clobbered_arg_p): If val is
  69         CONST_INT_P, subtract resp. add crtl->args.pretend_args_size to it.
  70
  71 2012-02-06  Jonathan Wakely  <jwakely.gcc@gmail.com>
  72
  73         PR c++/48680
  74         * doc/invoke.texi (C++ Dialect Options): Use @option markup for
  75         -Weffc++ and specify guidelines come from second edition.
  76
  77 2012-02-05  Richard Sandiford  <rdsandiford@googlemail.com>
  78
  79         * config/mips/mips.md (sibcall_internal, sibcall_value_internal)
  80         (sibcall_value_multiple_internal, call_split, call_internal_direct)
  81         (call_direct_split, call_value_split, call_value_internal_direct)
  82         (call_value_direct_split, call_value_multiple_split): Use jal and
  83         jal_macro attributes.
  84
  85 2012-02-05  Richard Sandiford  <rdsandiford@googlemail.com>
  86
  87         * reload1.c (reload_regs_reach_end_p): Replace with...
  88         (reload_reg_rtx_reaches_end_p): ...this function.
  89         (new_spill_reg_store): Update commentary.
  90         (emit_input_reload_insns): Don't clear new_spill_reg_store here.
  91         (emit_output_reload_insns): Check reload_reg_rtx_reaches_end_p
  92         before setting new_spill_reg_store.
  93         (emit_reload_insns): Use a separate loop to clear new_spill_reg_store.
  94         Use reload_reg_rtx_reaches_end_p instead of reload_regs_reach_end_p.
  95         Also use reload_reg_rtx_reaches_end_p when reading new_spill_reg_store
  96         for non-spill reload registers.
  97
  98 2012-02-05  Ira Rosen  <irar@il.ibm.com>
  99
 100         PR tree-optimization/52091
 101         * tree-vectorizer.h (vect_is_simple_use): Add an argument.
 102         (vect_is_simple_use_1): Likewise.
 103         * tree-vect-loop.c (vectorizable_reduction): Update calls
 104         to vect_is_simple_use_1 and vect_is_simple_use.
 105         (vectorizable_live_operation): Likewise.
 106         * tree-vect-patterns.c (widened_name_p,
 107         vect_recog_vector_vector_shift_pattern, check_bool_pattern):
 108         Likewise.
 109         * tree-vect-stmts.c (process_use, vect_get_vec_def_for_operand,
 110         vectorizable_call, vectorizable_conversion,
 111         vectorizable_assignment, vectorizable_shift,
 112         vectorizable_operation, vectorizable_store, vectorizable_load):
 113         Likewise.
 114         (vect_is_simple_cond): Add an argument, pass it to
 115         vect_is_simple_use_1.
 116         (vectorizable_condition): Update calls to vect_is_simple_cond,
 117         vect_is_simple_use.
 118         (vect_is_simple_use): Add an argument, the statement in which
 119         OPERAND is used.  Check that if OPERAND's def stmt is a double
 120         reduction phi node, the use is a phi node too.
 121         (vect_is_simple_use_1): Add an argument, pass it to
 122         vect_is_simple_use.
 123         * tree-vect-slp.c (vect_get_and_check_slp_defs): Update a call
 124         to vect_is_simple_use.
 125
 126 2012-02-04  Jakub Jelinek  <jakub@redhat.com>
 127
 128         PR rtl-optimization/52095
 129         * modulo-sched.c (dump_insn_locator): New function.
 130         (loop_canon_p, sms_schedule): Use it.
 131
 132         PR rtl-optimization/52113
 133         * lower-subreg.c (decompose_multiword_subregs): Call recog_memoized
 134         even for decomposable shift/zext insns.
 135
 136 2012-02-03  Jakub Jelinek  <jakub@redhat.com>
 137             Zdenek Dvorak  <ook@ucw.cz>
 138
 139         PR rtl-optimization/52092
 140         * loop-unswitch.c (unswitch_single_loop): Call copy_rtx_if_shared
 141         on get_iv_value result.
 142
 143 2012-02-02  Andrew Pinski  <apinski@cavium.com>
 144
 145         PR middle-end/47982
 146         PR middle-end/43967
 147         * doc/libgcc.texi (__udivmoddi4/__udivmodti4): Fix documentation typo.
 148
 149 2012-02-02  Jakub Jelinek  <jakub@redhat.com>
 150
 151         PR middle-end/48071
 152         * diagnostic.c (diagnostic_finish): Remove trailing newlines.
 153
 154 2012-02-02  Vladimir Makarov  <vmakarov@redhat.com>
 155
 156         PR rtl-optimization/49800
 157         * haifa-sched.c (sched_init): Call regstat_init_n_sets_and_refs.
 158         (sched_finish): Call regstat_free_n_sets_and_refs.
 159
 160 2012-02-02  Jia Liu  <proljc@gmail.com>
 161
 162         * config/mips/mips-dspr2.md (mips_prepend): Mask operand 3 rather
 163         than operand 2.
 164
 165 2012-02-02 Jan Hubicka  <jh@suse.cz>
 166            Tom de Vries  <tom@codesourcery.com>
 167
 168         PR middle-end/51998
 169         * cgraphunit.c (cgraph_analyze_function): Break cyclic aliases.
 170         * varpool.c (varpool_analyze_pending_decls): Likewise.
 171
 172 2012-02-02  Sumanth G <sumanth.gundapaneni@kpitcummins.com>
 173             Jayant R Sonar <jayant.sonar@kpitcummins.com>
 174
 175         * config.gcc: Add cr16-* support.
 176
 177         * doc/extend.texi: Document cr16 extensions.
 178         * doc/install.texi: Document cr16 install.
 179         * doc/invoke.texi: Document cr16 options.
 180         * doc/md.texi: Document cr16 constraints.
 181
 182         * common/config/cr16/cr16-common.c: New file.
 183         * config/cr16/cr16.c: New file.
 184         * config/cr16/cr16.h: New file.
 185         * config/cr16/cr16.md: New file.
 186         * config/cr16/cr16.opt: New file.
 187         * config/cr16/cr16-protos.h: New file.
 188         * config/cr16/predicates.md: New file.
 189         * config/cr16/constraints.md: New file.
 190         * config/cr16/t-cr16: New file.
 191
 192 2012-02-02  Jakub Jelinek  <jakub@redhat.com>
 193
 194         PR target/52086
 195         * config/i386/i386.md (*addqi_2 peephole with SImode addition): Check
 196         that operands[2] is either immediate, or q_regs_operand.
 197
 198         PR tree-optimization/52073
 199         * tree-vect-stmts.c (vect_mark_relevant): When checking uses of
 200         a pattern stmt for pattern uses, ignore uses outside of the loop.
 201
 202 2012-02-01  Georg-Johann Lay  <avr@gjlay.de>
 203
 204         * config/avr/avr.c: Resolve all AS1 and AS2 macros.
 205         * config/avr/avr.h (AS1, AS2, AS2C, AS3): Remove.
 206         (OUT_AS1, OUT_AS2): Remove.
 207
 208 2012-02-01  Georg-Johann Lay  <avr@gjlay.de>
 209
 210         PR rtl-optimization/51374
 211         * combine.c (can_combine_p): Don't allow volatile_refs_p insns
 212         to cross other volatile_refs_p insns.
 213
 214 2012-02-01  Richard Guenther  <rguenther@suse.de>
 215
 216         * doc/invoke.texi (fno-inline): Clarify documentation.
 217         (finline-small-functions): Likewise.
 218         (finline-functions): Likewise.
 219         * common.opt (finline): Adjust comment and documentation.
 220         (finline-small-functions): Clarify documentation.
 221         (finline-functions): Likewise.
 222         (finline-functions-called-once): Likewise.
 223
 224 2012-02-01  Tristan Gingold  <gingold@adacore.com>
 225
 226         * c-typeck.c (composite_type): Keep mode for pointers.
 227
 228 2012-01-31  Richard Sandiford  <rdsandiford@googlemail.com>
 229
 230         * function.h (regno_reg_rtx): Adjust comment.
 231         * reginfo.c (init_reg_modes_target): Only use the previous mode
 232         if it fits within one register.  Remove MIPS comment.
 233
 234 2012-01-31  Jakub Jelinek  <jakub@redhat.com>
 235
 236         PR bootstrap/52058
 237         * combine.c (do_SUBST_LINK, SUBST_LINK): Guard with #ifndef HAVE_cc0.
 238
 239 2012-01-31  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
 240
 241         * config/s390/s390.md ("*ashr<mode>3_and"): Add missing z196 flag
 242         to srak instruction.
 243
 244 2012-01-31  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>
 245
 246         config/arm/thumb2.md (thumb2_mov_notscc): Use MVN for true
 247         condition.
 248
 249 2012-01-31  Jakub Jelinek  <jakub@redhat.com>
 250
 251         PR bootstrap/52041
 252         PR bootstrap/52039
 253         PR target/51974
 254         * ipa-prop.c (detect_type_change_1): Call ao_ref_init.
 255
 256 2012-01-31  Richard Guenther  <rguenther@suse.de>
 257
 258         PR tree-optimization/51528
 259         * tree-sra.c (sra_modify_assign): Avoid copy-in/out for aggregate
 260         assigns.
 261
 262 2012-01-31  Jakub Jelinek  <jakub@redhat.com>
 263
 264         PR bootstrap/52041
 265         PR bootstrap/52039
 266         PR target/51974
 267         * ree.c (add_removable_extension): Change def_map argument
 268         to unsigned *, store in def_map 1 + offset into *insn_list vector
 269         instead of pointers into the vector.
 270         (find_removable_extensions): Adjust caller.
 271
 272 2012-01-30  Georg-Johann Lay  <avr@gjlay.de>
 273
 274         * config/avr/avr.md: Resolve all AS1 and AS2 macros.
 275         Transform all "* quoted-c-code" to { c-code }.
 276         Remove redundant test for "optimize" in combine patterns.
 277         Move (include "avr-dimode.md") to end of file.
 278
 279 2012-01-30  Bin Cheng  <bin.cheng@arm.com>
 280
 281         PR target/51835
 282         * config/arm/arm.c (arm_libcall_uses_aapcs_base): Use correct ABI
 283         for __aeabi_d2iz/__aeabi_d2uiz with hard-float.
 284
 285 2012-01-30  Richard Guenther  <rguenther@suse.de>
 286
 287         PR tree-optimization/52028
 288         * tree-loop-distribution.c (ldist_gen): Properly update
 289         virtual SSA form.
 290
 291 2012-01-30  Jakub Jelinek  <jakub@redhat.com>
 292
 293         PR debug/52027
 294         * dwarf2out.c (dwarf2out_switch_text_section): Don't call
 295         set_cur_line_info_table if not emitting debug info.
 296
 297         PR tree-optimization/52046
 298         * tree-vect-patterns.c (check_bool_pattern): Give up if
 299         a comparison could throw.
 300
 301         PR debug/52048
 302         * tree-ssa-tail-merge.c (local_def): Ignore debug uses.
 303
 304 2012-01-30  Richard Guenther  <rguenther@suse.de>
 305
 306         PR tree-optimization/52045
 307         * tree-optimize.c (execute_cleanup_cfg_post_optimizing): Update
 308         SSA form if cfgcleanup did anything.
 309
 310 2012-01-30  Richard Guenther  <rguenther@suse.de>
 311
 312         PR tree-optimization/52045
 313         * ipa-inline-transform.c (inline_transform): Call execute_fixup_cfg
 314         before computing final todo.
 315
 316 2012-01-30  Richard Guenther  <rguenther@suse.de>
 317
 318         PR tree-optimization/51528
 319         * tree-sra.c (sra_modify_assign): Re-factor in preparation
 320         for PR51528 fix.
 321
 322 2012-01-30  Paolo Bonzini  <bonzini@gnu.org>
 323
 324         * df-problems.c (df_kill_notes): Check that the use refers
 325         to the note under examination.
 326
 327 2012-01-30  Eric Botcazou  <ebotcazou@adacore.com>
 328
 329         PR target/51920
 330         * config/sparc/sparc.c (vector_init_fpmerge): Remove INNER_MODE
 331         parameter and use short-lived pseudos.
 332         (vector_init_faligndata): Remove INNER_MODE parameter and use loop.
 333         (sparc_expand_vector_init): Const-ify local variables and adjust
 334         calls to above functions.
 335
 336 2012-01-30  Georg-Johann Lay  <avr@gjlay.de>
 337
 338         * config/avr/avr.c (out_movqi_mr_r): Fix length computation.
 339
 340 2012-01-29  Sandra Loosemore  <sandra@codesourcery.com>
 341
 342         * doc/invoke.texi: Make usage of "compile time" and
 343         "run time"/"runtime" consistent throughout the file.
 344
 345 2012-01-29  Uros Bizjak  <ubizjak@gmail.com>
 346
 347         * config/alpha/alpha.c (alpha_option_overrride): Default to
 348         full IEEE compliance mode for Go language.
 349
 350 2011-01-29  Tijl Coosemans  <tijl@coosemans.org>
 351
 352         * config/freebsd-spec.h [TARGET_LIBC_PROVIDES_SSP]
 353         (LINK_SSP_SPEC): Define.
 354
 355 2012-01-28  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
 356
 357         PR target/51871
 358         * config/pa/pa.c (pa_return_addr_rtx): Add support for PA2.0 export
 359         stubs.
 360
 361 2012-01-28  Sandra Loosemore  <sandra@codesourcery.com>
 362
 363         * doc/invoke.texi: Correct hyphenation of "floating point",
 364         "double precision", and related terminology throughout the file.
 365
 366 2012-01-28  Jakub Jelinek  <jakub@redhat.com>
 367
 368         PR target/52006
 369         * config/arm/arm.md (pic_add_dot_plus_eight peephole2): Use
 370         arm_general_register_operand predicate for operand 2 instead of
 371         register_operand.
 372
 373 2012-01-27  Ian Lance Taylor  <iant@google.com>
 374
 375         PR go/47656
 376         * builtins.def (BUILT_IN_INIT_HEAP_TRAMPOLINE): Define.
 377         * builtins.c (expand_builtin_init_trampoline): Add onstack
 378         parameter.  Change caller.
 379         (expand_builtin): Handle BUILT_IN_INIT_HEAP_TRAMPOLINE.
 380         * tree.c (build_common_builtin_nodes): Declare
 381         __builtin_init_heap_trampoline.
 382
 383 2012-01-27  Georg-Johann Lay  <avr@gjlay.de>
 384
 385         * config/avr/avr-protos.h (lpm_reg_rtx, lpm_addr_reg_rtx,
 386         tmp_reg_rtx, zero_reg_rtx, all_regs_rtx, rampz_rtx): Make global.
 387         * config/avr/avr.c: Ditto.
 388         (avr_regnames): Remove because unused.
 389         * config/avr/avr.md (*cpse.ne): New peephole.
 390         (*cpse.eq): New peephole from former cpse peepholes.
 391
 392 2012-01-27  Michael Eager  <eager@eagercon.com>
 393
 394         * config/microblaze.c (microblaze_emit_compare): Correct
 395         test after pcmp instruction.
 396
 397 2012-01-27  Richard Guenther  <rguenther@suse.de>
 398
 399         PR tree-optimization/52020
 400         * tree-sra.c (sra_modify_assign): Do not transform clobbers.
 401
 402 2012-01-27  Richard Guenther  <rguenther@suse.de>
 403
 404         * ipa-pure-const.c (check_stmt): Clobbers do not make a
 405         function non-const/pure.
 406
 407 2012-01-27  Richard Guenther  <rguenther@suse.de>
 408
 409         PR tree-optimization/50444
 410         * tree-sra.c (build_ref_for_offset): Properly adjust the
 411         MEM_REF type for unaligned accesses.
 412
 413 2012-01-27  Richard Guenther  <rguenther@suse.de>
 414
 415         PR tree-optimization/50444
 416         * expr.c (mem_ref_refers_to_non_mem_p): New function.
 417         (expand_assignment): Use it.  Properly handle misaligned
 418         bases when expanding stores to component references.
 419         (expand_expr_real_1): Use mem_ref_refers_to_non_mem_p and
 420         refactor that case.
 421
 422 2012-01-27  Andrey Belevantsev  <abel@ispras.ru>
 423
 424         PR middle-end/51389
 425         * Makefile.in (tree-data-ref.o): Depend on $(PARAMS_H).
 426         * tree-data-ref.h (find_data_references_in_loop): Remove declaration.
 427         * tree-data-ref.c (find_data_references_in_loop): Make static.
 428         (compute_all_dependences): Change return type to bool.  Bail out
 429         for too many datarefs in a loop.  Move the hunk resetting the data
 430         dependences vector from ...
 431         (compute_data_dependences_for_loop): ... here.  Account for
 432         compute_all_dependences returning false.
 433         (compute_data_dependences_for_bb): Likewise.
 434         * params.def (PARAM_LOOP_MAX_DATAREFS_FOR_DATADEPS): New param.
 435         * doc/invoke.texi (loop-max-datarefs-for-datadeps): Document it.
 436
 437 2012-01-27  Richard Guenther  <rguenther@suse.de>
 438
 439         PR middle-end/51959
 440         * expr.c (store_field): Use the alias-set of the scratch memory
 441         for storing to it.
 442
 443 2012-01-27  Tom de Vries  <tom@codesourcery.com>
 444
 445         PR tree-optimization/51990
 446         * tree-ssa-sccvn.c (copy_reference_ops_from_ref): Handle
 447         WITH_SIZE_EXPR.
 448         * tree-ssa-pre.c (create_component_ref_by_pieces_1): Same.
 449
 450 2012-01-27  Jakub Jelinek  <jakub@redhat.com>
 451
 452         PR debug/52001
 453         * var-tracking.c (reverse_op): Don't add any reverse operation
 454         if V already has any constant locations.
 455
 456 2012-01-27  Sandra Loosemore  <sandra@codesourcery.com>
 457
 458         * doc/invoke.texi: Correct usage of "command line" (noun)
 459         vs "command-line" (adjective) throughout.
 460
 461 2012-01-27  Sandra Loosemore  <sandra@codesourcery.com>
 462
 463         * doc/invoke.texi (Language Independent Options): Move
 464         -Wcoverage-mismatch blurb from here....
 465         (Warning Options): ...to here.
 466
 467 2012-01-27  Peter Bergner  <bergner@vnet.ibm.com>
 468
 469         * config/rs6000/rs6000.c (rs6000_option_override_internal):
 470         Set rs6000_always_hint to false for 476.
 471
 472 2012-01-27  Matthias Klose  <doko@ubuntu.com>
 473
 474         * gcc.c (add_sysrooted_prefix): Remove trailing dir separator from
 475           system root.
 476         * incpath.c (add_standard_paths): Likewise.
 477
 478 2012-01-27  Richard Henderson  <rth@redhat.com>
 479
 480         * config/m68k/m68k.c (TARGET_ATOMIC_TEST_AND_SET_TRUEVAL): New.
 481         * config/m68k/sync.md (atomic_test_and_set): Rename from
 482         sync_test_and_setqi and adjust the operands.
 483         (atomic_test_and_set_1): Rename from sync_test_and_setqi_1
 484         and unconditionally enable.
 485
 486 2012-01-27  Richard Henderson  <rth@redhat.com>
 487
 488         * config/sparc/sparc.c (TARGET_ATOMIC_TEST_AND_SET_TRUEVAL): New.
 489         * config/sparc/sync.md (atomic_test_and_set): Only handle QImode.
 490         (ldstub): Rename from ldstubqi.
 491         (ldstub<I24MODE>): Remove.
 492
 493 2012-01-27  Richard Henderson  <rth@redhat.com>
 494
 495         * target.def (TARGET_ATOMIC_TEST_AND_SET_TRUEVAL): New.
 496         * c-cppbuiltin.c (cpp_atomic_builtins): Define
 497         __GCC_ATOMIC_TEST_AND_SET_TRUEVAL.
 498         * doc/tm.texi.in (TARGET_ATOMIC_TEST_AND_SET_TRUEVAL): Add doc hook.
 499         * doc/tm.texi: Rebuild.
 500
 501 2012-01-27  Richard Henderson  <rth@redhat.com>
 502
 503         * optabs.c (gen_atomic_test_and_set): Remove default.
 504         (maybe_emit_atomic_test_and_set): Use maybe_expand_insn.
 505
 506 2012-01-26  Jakub Jelinek  <jakub@redhat.com>
 507
 508         PR rtl-optimization/51978
 509         * ree.c (make_defs_and_copies_lists): Change set_pat type to const_rtx.
 510         (combine_reaching_defs): Likewise.
 511         (struct re_info): Remove.
 512         (add_removable_extension): Remove x and data arguments,
 513         add insn, insn_list and def_map.  Use the arguments directly
 514         instead of using struct re_info.
 515         (find_removable_extensions): Don't call add_removable_extension
 516         through note_stores, instead just call it with single_set
 517         result if non-NULL.
 518         (find_and_remove_re): Pass curr_cand->expr instead of
 519         PATTERN (curr_cand->insn) as set_pat argument to combine_reaching_defs.
 520
 521 2012-01-26  Michael Matz  <matz@suse.de>
 522
 523         PR tree-optimization/46590
 524         * cfgexpand.c: Revert last change (r183305).
 525         * gimplify.c (gimplify_bind_expr): Add clobbers for all non-gimple
 526         regs.
 527         * tree-eh.c (cleanup_empty_eh): Try to optimize clobbers before
 528         checking for emptiness.
 529
 530 2012-01-26  Jakub Jelinek  <jakub@redhat.com>
 531
 532         PR middle-end/51895
 533         * expr.c (expand_expr_real_1): Handle BLKmode MEM_REF of
 534         non-addressable non-BLKmode base correctly.
 535
 536 2012-01-26  Michael Matz  <matz@suse.de>
 537
 538         PR tree-optimization/48794
 539         * tree-eh.c (remove_unreachable_handlers_no_lp): Don't remove
 540         regions referenced from RESX/EH_DISPATCH.
 541
 542 2012-01-26  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
 543
 544         * config/s390/s390.h: Make BRANCH_COST an option.
 545         * config/s390/s390.opt: New option -mbranch-cost.
 546
 547 2012-01-26  Richard Henderson  <rth@redhat.com>
 548
 549         Revert 2012-01-24 change:
 550         * trans-mem.c (requires_barrier): Do not instrument thread local
 551         variables and emit save/restore for them.
 552
 553 2012-01-25  Jakub Jelinek  <jakub@redhat.com>
 554
 555         PR middle-end/51986
 556         * sched-deps.c (sched_get_condition_with_rev_uncached): Don't test
 557         for pat == 0.
 558
 559 2012-01-25  Richard Sandiford  <rdsandiford@googlemail.com>
 560
 561         * config/mips/mips.c (mips_small_data_pattern_1): Don't process
 562         ASM_OPERANDS.
 563
 564 2012-01-25  Georg-Johann Lay  <avr@gjlay.de>
 565
 566         PR target/49868
 567         Rename __pgm to __flash.
 568         Rename __pgm1 to __flash1.
 569         Rename __pgm2 to __flash2.
 570         Rename __pgm3 to __flash3.
 571         Rename __pgm4 to __flash4.
 572         Rename __pgm5 to __flash5.
 573         Rename __pgmx to __memx.
 574         * doc/extend.texi (AVR Named Address Spaces)
 575         Rename address space names as indicated above.
 576         * config/avr/avr.c (avr_addrspace): Ditto.
 577
 578         * config/avr/avr-protos.h
 579         (avr_mem_pgmx_p): Rename to avr_mem_memx_p.
 580         (avr_mem_pgm_p): Rename to avr_mem_flash_p.
 581         * config/avr/predicates.md: Ditto.
 582         * config/avr/avr.c Ditto, and
 583         (avr_decl_pgmx_p): Rename to avr_decl_memx_p.
 584         (avr_decl_pgm_p): Rename to avr_decl_flash_p.
 585
 586         * config/avr/avr.h (ADDR_SPACE_PGM): Rename to ADDR_SPACE_FLASH.
 587         (ADDR_SPACE_PGM1): Rename to ADDR_SPACE_FLASH1.
 588         (ADDR_SPACE_PGM2): Rename to ADDR_SPACE_FLASH2.
 589         (ADDR_SPACE_PGM3): Rename to ADDR_SPACE_FLASH3.
 590         (ADDR_SPACE_PGM4): Rename to ADDR_SPACE_FLASH4.
 591         (ADDR_SPACE_PGM5): Rename to ADDR_SPACE_FLASH5.
 592         (ADDR_SPACE_PGMX): Rename to ADDR_SPACE_MEMX.
 593         * config/avr/avr.c: Ditto.
 594         * config/avr/avr.md: Ditto.
 595
 596 2012-01-25  Jason Merrill  <jason@redhat.com>
 597
 598         PR c++/51992
 599         * tree.c (find_decls_types_in_node): Walk gimple_call_fntype.
 600
 601 2012-01-25  Jakub Jelinek  <jakub@redhat.com>
 602
 603         PR tree-optimization/51987
 604         * tree-data-ref.c (get_references_in_stmt): Handle references in
 605         non-volatile GIMPLE_ASM.
 606
 607 2012-01-25  Richard Guenther  <rguenther@suse.de>
 608
 609         * tree-ssa-sccvn.c (vn_reference_eq): Also compare if both
 610         bases are dereferenced.
 611
 612 2012-01-25  Andrey Belevantsev  <abel@ispras.ru>
 613
 614         PR rtl-optimization/48374
 615         * sel-sched-ir.h (get_all_loop_exits): Check for zero successors.
 616
 617 2012-01-25  Andrey Belevantsev  <abel@ispras.ru>
 618
 619         * tree-predcom.c (tree_predictive_commoning_loop): Bail out when
 620         compute_data_dependences_for_loop returns false.
 621         * tree-parloops.c (loop_parallel_p): Likewise.
 622
 623 2012-01-25  Richard Guenther  <rguenther@suse.de>
 624
 625         * tree.h (get_pointer_alignment_1): Declare.
 626         * builtins.c (get_pointer_alignment_1): New function.
 627         (get_pointer_alignment): Use it.
 628
 629 2012-01-25  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>
 630
 631         PR rtl-optimization/48308
 632         * combine.c (enum undo_kind): Add UNDO_LINKS.
 633         (struct undo): Add member l to other_contents and where.
 634         (do_SUBST_LINK): New.
 635         (SUBST_LINK): New.
 636         (try_combine): Handle LOG_LINKS for the dummy i1 case.
 637         (undo_all): Handle UNDO_LINKS.
 638
 639 2012-01-25  Richard Henderson  <rth@redhat.com>
 640
 641         * optabs.c (maybe_emit_atomic_test_and_set): Allow non-QImode
 642         mem inputs.
 643
 644 2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>
 645
 646         * optabs.c (gen_atomic_test_and_set): Use each argument.
 647
 648 2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>
 649
 650         * config/mips/mips-ps-3d.md (mips_addr_ps, reduc_splus_v2sf)
 651         (mips_cvt_pw_ps, mips_cvt_ps_pw, mips_mulr_ps, mips_cabs_cond_<fmt>)
 652         (mips_cabs_cond_4s, mips_cabs_cond_ps, bc1any4t, bc1any4f, bc1any2t)
 653         (bc1any2f, mips_rsqrt1_<fmt>, mips_rsqrt2_<fmt>, mips_recip1_<fmt>)
 654         (mips_recip2_<fmt>): Require TARGET_MIPS3D rather than
 655         TARGET_PAIRED_SINGLE_FLOAT.
 656
 657 2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>
 658
 659         * doc/rtl.texi (MEM_IN_STRUCT_P, MEM_SCALAR_P): Delete.
 660         (in_struct, return_val): Remove MEM documentation.
 661         * rtl.h (rtx_def): Remove MEM meanings from in_struct and return_val.
 662         (MEM_IN_STRUCT_P, MEM_SCALAR_P): Delete.
 663         (MEM_COPY_ATTRIBUTES): Remove references to MEM_IN_STRUCT_P
 664         and MEM_SCALAR.
 665         * emit-rtl.c (set_mem_attributes_minus_bitpos): Likewise.
 666         * cfgexpand.c (add_alias_set_conflicts): Likewise.
 667         * expr.c (store_field): Likewise.
 668         * function.c (assign_stack_temp_for_type): Likewise.
 669         * ifcvt.c (noce_try_cmove_arith): Likewise.
 670         * reload1.c (reload): Likewise.
 671         * config/alpha/alpha.c (alpha_set_memflags_1): Likewise.
 672         (alpha_set_memflags): Likewise.
 673         * config/m32c/m32c.c (m32c_immd_dbl_mov): Nullify.
 674
 675 2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>
 676
 677         * rtl.h (true_dependence, canon_true_dependence): Remove varies
 678         parameter.
 679         * alias.c (fixed_scalar_and_varying_struct_p): Delete.
 680         (true_dependence_1, write_dependence_p, may_alias_p): Don't call it.
 681         (true_dependence_1, true_dependence, canon_true_dependence): Remove
 682         varies parameter.
 683         * cselib.c (cselib_rtx_varies_p): Delete.
 684         (cselib_invalidate_mem): Update call to canon_true_dependence.
 685         * dse.c (record_store, check_mem_read_rtx): Likewise.
 686         (scan_reads_nospill): Likewise.
 687         * cse.c (check_dependence): Likewise.
 688         (cse_rtx_varies_p): Delete.
 689         * expr.c (safe_from_p): Update call to true_dependence.
 690         * ira.c (validate_equiv_mem_from_store): Likewise.
 691         (memref_referenced_p): Likewise.
 692         * postreload-gcse.c (find_mem_conflicts): Likewise.
 693         * sched-deps.c (sched_analyze_2): Likewise.
 694         * store-motion.c (load_kills_store): Likewise.
 695         * config/frv/frv.c (frv_registers_conflict_p_1): Likewise.
 696         * gcse.c (mems_conflict_for_gcse_p): Likewise.
 697         (compute_transp): Update call to canon_true_dependence.
 698
 699 2012-01-25  Richard Henderson  <rth@redhat.com>
 700
 701         * optabs.c (CODE_FOR_atomic_test_and_set): Provide default.
 702         (maybe_emit_atomic_test_and_set): New.
 703         (expand_sync_lock_test_and_set): Use it.
 704         (expand_atomic_test_and_set): Likewise.
 705         * doc/extend.texi (__atomic_test_and_set): Adjust the docs to match
 706         the implementation; clarify implementation defined details.
 707         * doc/md.texi (atomic_test_and_set): Document.
 708
 709 2012-01-25  Richard Henderson  <rth@redhat.com>
 710
 711         * config/sparc/predicates.md (zero_or_v7_operand): Use match_code.
 712
 713 2012-01-25  Richard Henderson  <rth@redhat.com>
 714
 715         PR target/51968
 716         * config/arm/arm.c (neon_split_vcombine): Emit deleted note
 717         to effect no-op split.
 718
 719 2012-01-24  Aldy Hernandez  <aldyh@redhat.com>
 720
 721         PR lto/51698
 722         * builtin-types.def: (BT_CONST_DOUBLE_PTR): New.
 723         (BT_FN_VOID_PTR_CONST_PTR_SIZE): New.
 724         (BT_FN_VOID_PTR_INT_SIZE): New.
 725         (BT_FN_UINT_UINT_VAR): Remove.
 726         (BT_FN_UINT32_UINT32_VAR): New.
 727         (BT_FN_DOUBLE_VPTR): Remove.
 728         (BT_FN_DOUBLE_CONST_DOUBLE_PTR): New.
 729
 730         * gtm-builtins.def (_ITM_abortTransaction): Set return type to void.
 731         (_ITM_changeTransactionMode): Same.
 732         (_ITM_memmoveRtWt): Change return type to void.
 733         (_ITM_memcpyRtWt): Same.
 734         (_ITM_memsetW): Same.
 735         (_ITM_RaRD): Change types to double.
 736         (_ITM_RD): Same.
 737         (_ITM_RaWD): Same.
 738         (_ITM_RfWD): Same.
 739
 740         * builtins.def (DEF_TM_BUILTIN): Set BOTH_P to true.
 741
 742 2012-01-24  Aldy Hernandez  <aldyh@redhat.com>
 743             Patrick Marlier  <patrick.marlier@gmail.com>
 744
 745         * trans-mem.c (requires_barrier): Do not instrument thread local
 746         variables and emit save/restore for them.
 747
 748 2012-01-24  Jason Merrill  <jason@redhat.com>
 749
 750         PR c++/51812
 751         * cgraphunit.c (cgraph_decide_is_function_needed): Don't always
 752         output static aliases.
 753
 754 2012-01-24  Jakub Jelinek  <jakub@redhat.com>
 755
 756         PR driver/47249
 757         * common.opt (-pie, -shared, pie, shared): Change from Common to
 758         Driver.
 759         * gcc.c (display_help): Display help for -pie and -shared.
 760
 761 2012-01-24  Georg-Johann Lay  <avr@gjlay.de>
 762
 763         PR target/49868
 764         * doc/extend.texi (AVR Named Address Spaces): Move sample code up.
 765         Remove note on size/offset limitation.
 766         (AVR Variable Attributes): Add example how to read data located
 767         with progmem.  Refer to named address spaces.
 768         * doc/invoke.texi (AVR Options): Fix typo.
 769
 770 2012-01-24  Richard Guenther  <rguenther@suse.de>
 771
 772         Forward-port to trunk
 773         2010-09-21  Jakub Jelinek  <jakub@redhat.com>
 774
 775         PR middle-end/45678
 776         * expr.c (expand_expr_real_1) <case VIEW_CONVERT_EXPR>: If
 777         op0 isn't sufficiently aligned and there is movmisalignM
 778         insn for mode, use it to load op0 into a temporary register.
 779
 780 2012-01-24  Jakub Jelinek  <jakub@redhat.com>
 781
 782         PR target/51957
 783         * target.def (const_not_ok_for_debug_p): New hook.
 784         * doc/tm.texi.in (TARGET_CONST_NOT_OK_FOR_DEBUG_P): New hook
 785         documentation.
 786         * doc/tm.texi: Regenerated.
 787         * dwarf2out.c (const_ok_for_output_1): If
 788         targetm.const_not_ok_for_debug_p returns true, fail.
 789         * config/rs6000/rs6000.c (rs6000_const_not_ok_for_debug_p): New
 790         function.
 791         (TARGET_CONST_NOT_OK_FOR_DEBUG_P): Redefine.
 792
 793 2012-01-23  Kai Tietz  <ktietz@redhat.com>
 794
 795         PR target/51900
 796         * config/i386/predicates.md (symbolic_operand): Allow
 797         UNSPEC_PCREL as PIC expression for lea.
 798         * config/i386/winnt.c (i386_pe_binds_local_p): Reworked.
 799         * config/i386/i386.c (ix86_delegitimize_address): Handle
 800         UNSPEC_PCREL for none-MEM, too.
 801
 802 2012-01-23  Aldy Hernandez  <aldyh@redhat.com>
 803
 804         * trans-mem.c (ipa_tm_create_version): Set externally_visible.
 805         (ipa_tm_create_version_alias): Same.
 806
 807 2012-01-23  Uros Bizjak  <ubizjak@gmail.com>
 808
 809         PR libitm/51830
 810         * builtin-types.def (BT_FN_UINT_UINT_VAR): New.
 811         * gtm-builtins.def (BUILT_IN_TM_START): Declare as BT_FN_UINT_UINT_VAR.
 812
 813 2012-01-23  Aldy Hernandez  <aldyh@redhat.com>
 814             Patrick Marlier  <patrick.marlier@gmail.com>
 815             Iain Sandoe  <developer@sandoe-acoustics.co.uk>
 816
 817         PR lto/51916
 818         * lto-wrapper.c (run_gcc): Pass the LTO section name to
 819         simple_object_start_read.
 820
 821 2012-01-23  Richard Guenther  <rguenther@suse.de>
 822
 823
 824         PR tree-optimization/51895
 825         * tree-sra.c (decide_one_param_reduction): Avoid sub-optimal
 826         parameter decomposition into BLKmode components.
 827
 828 2012-01-23  Eric Botcazou  <ebotcazou@adacore.com>
 829
 830         * tree-ssa-structalias.c (intra_create_variable_infos): Do not create
 831         fake variables for restrict-qualified pointers whose pointed-to type
 832         contains a placeholder.
 833
 834 2012-01-23  Richard Guenther  <rguenther@suse.de>
 835
 836         PR tree-optimization/51949
 837         * ipa-split.c (execute_split_functions): Do not split malloc functions.
 838
 839 2012-01-23  Jakub Jelinek  <jakub@redhat.com>
 840
 841         PR rtl-optimization/51933
 842         * ree.c (transform_ifelse): Return true right away if dstreg is
 843         already wider or equal to cand->mode.
 844         (enum ext_modified_kind, struct ext_modified, ext_state): New types.
 845         (make_defs_and_copies_lists): Remove defs_list and copies_list
 846         arguments, add state argument, just truncate state->work_list
 847         instead of always allocating and freeing the vector.  Assert that
 848         get_defs succeeds instead of returning 2.  Changed return type to bool.
 849         (merge_def_and_ext): Add state argument.  If SET_DEST doesn't
 850         have ext_src_mode, see if it has been modified already with the
 851         right kind of extension and has been extended before from the
 852         ext_src_mode.  If SET_DEST is already wider or equal to cand->mode,
 853         just return true.  Remember the original mode in state->modified array.
 854         (combine_reaching_defs): Add state argument.  Don't allocate and
 855         free here def_list, copied_list and vec vectors, instead just
 856         VEC_truncate the vectors in *state.  Don't handle outcome == 2 here.
 857         (find_and_remove_re): Set DF_DEFER_INSN_RESCAN df flag.
 858         Add state variable, clear vectors in it, initialize state.modified
 859         if needed.  Free all the vectors at the end and state.modified too.
 860         Don't skip a candidate if the extension expression has been modified.
 861
 862 2012-01-22  Douglas B Rupp  <rupp@gnat.com>
 863
 864         PR target/47096
 865         * config.gcc: (i[34567]86-*-interix3*): Remove from obsolete
 866          configurations. Change triplet to i[34567]86-*-interix[3-9]*.
 867         (extra_options) interix.opt -> i386/interix.opt"
 868         (extra_objs):Add winnt-stubs.o
 869         * configure.ac: Add interix to target_os .comm on PE check.
 870         * configure: Regenerate.
 871         * config/interix3.h: Delete and move bits to..
 872         * config/interix.h: Delete and move bits to..
 873         * config/i386/i386-interix3.h: Delete and move bits to..
 874         * config/i386/i386-interix.h: ..here.
 875         (TARGET_CPU_DEFAULT): Remove redefinition.
 876         (TARGET_ASM_CONSTRUCTOR): Undefine.
 877         (SUBTARGET_SWITCHES): Define for ms-bitfields.
 878         (TARGET_OS_CPP_BUILTINS): Remove __OPENNT. Add __declspec.
 879         (PTRDIFF_TYPE): Define.
 880         (LONG_DOUBLE_TYPE_SIZE): Define.
 881         (LIBGCC2_LONG_DOUBLE_TYPE_SIZE): Define.
 882         (SUBTARGET_OVERRIDE_OPTIONS): Remove.
 883         (TARGET_SECTION_TYPE_FLAGS): Define.
 884         (ASM_DECLARE_FUNCTION_NAME): Define.
 885         (ASM_OUTPUT_EXTERNAL): Define.
 886         (ASM_OUTPUT_EXTERNAL_LIBCALL): Define.
 887         (ASM_OUTPUT_ALIGNED_BSS): Define.
 888         (PCC_BITFIELD_TYPE_MATTERS): Define.
 889         (USE_CONST_SECTION): Define.
 890         (SUBTARGET_ENCODE_SECTION_INFO): Remove.
 891         (TARGET_ASM_FUNCTION_RODATA_SECTION): Remove.
 892         (SUPPORTS_ONE_ONLY): Remove.
 893         (I386_PE_STRIP_ENCODING): Define.
 894         * config/interix.opt: Delete and move bits to..
 895         * config/i386/interix.opt: ..here. New.
 896         (mpe-aligned-commons): Add.
 897         * config/i386/t-interix: Add copyright header.
 898         (winnt-stubs.o): Add rule.
 899
 900 2012-01-22  Jason Merrill  <jason@redhat.com>
 901
 902         PR c++/51832
 903         * varpool.c (varpool_analyze_pending_decls): Copy DECL_EXTERNAL
 904         for extra name aliases.
 905
 906 2012-01-22  Eric Botcazou  <ebotcazou@adacore.com>
 907
 908         PR rtl-optimization/51924
 909         * ree.c (combine_set_extension): Improve debugging message.
 910         (combine_reaching_defs): Likewise.
 911         (get_defs): Rename confusingly named variable.
 912         (find_and_remove_re): Skip a candidate if the extension expression has
 913         been modified.
 914
 915 2012-01-21  Robert Millan  <rmh@gnu.org>
 916             Gerald Pfeifer  <gerald@pfeifer.com>
 917
 918         * config/kfreebsd-gnu.h (GNU_USER_DYNAMIC_LINKERX32): New macro.
 919         (GNU_USER_DYNAMIC_LINKER): Adjust indentation.
 920
 921 2012-01-20  Jakub Jelinek  <jakub@redhat.com>
 922
 923         PR tree-optimization/51914
 924         * tree-vect-stmts.c (vectorizable_conversion): For
 925         cvt_type && modifier == WIDEN, put temporary with cvt_type
 926         at the beginning of vec_dsts and set vec_dest to temporary
 927         with vectype_out.
 928
 929 2012-01-20  Eric Botcazou  <ebotcazou@adacore.com>
 930
 931         * cfgrtl.c (rtl_dump_bb): Do not dump insns for {ENTRY|EXIT}_BLOCK.
 932
 933 2011-01-20  Tijl Coosemans  <tijl@coosemans.org>
 934
 935         * config/i386/i386.c: Fix checks for !TARGET_MACHO.
 936         * config/rs6000/rs6000.c: Likewise.
 937
 938 2012-01-20  Jakub Jelinek  <jakub@redhat.com>
 939
 940         PR target/51915
 941         * config/arm/arm.c (arm_count_output_move_double_insns): Call
 942         output_move_double on a copy of operands array.
 943
 944 2012-01-20  Cary Coutant  <ccoutant@google.com>
 945             Dodji Seketeli  <dodji@redhat.com>
 946
 947         PR debug/45682
 948         * dwarf2out.c (copy_declaration_context): Return ref to parent
 949         of declaration DIE, if necessary.
 950         (remove_child_or_replace_with_skeleton): Add new parameter; update
 951         caller.  Place skeleton DIE under parent DIE of original declaration.
 952         Move call to copy_declaration_context to here ...
 953         (break_out_comdat_types): ... from here.
 954
 955 2012-01-20  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
 956
 957         PR rtl-optimization/51856
 958         * reload.c (find_reloads_subreg_address): Set the address_reloaded
 959         flag to reloaded.
 960
 961 2012-01-20  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>
 962
 963         PR target/51819
 964         * config/arm/arm.c (arm_print_operand): Correct output of alignment
 965         hints for neon loads and stores.
 966
 967 2012-01-20  Georg-Johann Lay  <avr@gjlay.de>
 968
 969         PR target/49868
 970         PR target/50887
 971         * doc/extend.texi (Named Address Spaces): Split into subsections.
 972         (AVR Named Address Spaces): New subsection.
 973         (M32C Named Address Spaces): New subsection.
 974         (RL78 Named Address Spaces): New subsection.
 975         (SPU Named Address Spaces): New subsection.
 976         (Variable Attributes): New anchor "AVR Variable Attributes".
 977         (AVR Variable Attributes): Rewrite and avoid wording
 978         "address space" in this context.
 979         * doc/invoke.texi (AVR Options): Rewrite and add documentation
 980         for -maccumulate-args, -mbranch-cost=, -mrelax, -mshort-calls.
 981         (AVR Built-in Macros): New subsubsection therein.
 982         * doc/md.texi (AVR constraints): Remove "C04", "R".
 983
 984 2012-01-20  Richard Guenther  <rguenther@suse.de>
 985
 986         PR tree-optimization/51903
 987         * tree-ssa-pre.c (eliminate): Properly purging of EH edges
 988         when removing stmts.
 989
 990 2012-01-20  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>
 991
 992         PR target/50313
 993         * config/arm/arm.c (arm_load_pic_register): Use
 994         gen_pic_load_addr_unified. Delete calls to gen_pic_load_addr_32bit
 995         , gen_pic_add_dot_plus_eight and gen_pic_add_dot_plus_four.
 996         (arm_pic_static_addr): Likewise.
 997         (arm_rtx_costs_1): Adjust cost for UNSPEC_PIC_UNIFIED.
 998         (arm_note_pic_base): Handle UNSPEC_PIC_UNIFIED.
 999         * config/arm/arm.md (UNSPEC_PIC_UNIFIED): Define.
1000         (pic_load_addr_unified): New.
1001
1002 2012-01-20  Andrey Belevantsev  <abel@ispras.ru>
1003
1004         PR target/51106
1005         * function.c (instantiate_virtual_regs_in_insn): Use
1006         delete_insn_and_edges when removing a wrong asm insn.
1007
1008 2012-01-19  Vladimir Makarov  <vmakarov@redhat.com>
1009
1010         PR rtl-optimization/40761
1011         * ira-int.h (struct ira_loop_tree_node): Add comment for member loop.
1012         Add new member loop_num.
1013         (IRA_LOOP_NODE_BY_INDEX): Modify the check.
1014         (ira_build): Remove the parameter.
1015
1016         * ira.c (ira_print_disposition): Use loop_num instead of loop->num.
1017         (ira.c): Do not build CFG loops for one region allocation.  Remove
1018         argument from ira_build call.
1019
1020         * ira-build.c (init_loop_tree_node): New function.
1021         (create_loop_tree_nodes): Use it.  Separate the case when CFG
1022         loops are not built.
1023         (more_one_region_p): Check current_loops.
1024         (finish_loop_tree_nodes): Separate the case when CFG loops are not
1025         built.
1026         (add_loop_to_tree): Process loop equal to NULL too.
1027         (form_loop_tree): Separate the case when CFG loops are not built.
1028         Use explicitly number for the root.
1029         (rebuild_regno_allocno_maps, create_loop_tree_node_allocnos): Add
1030         an assertion.
1031         (ira_print_expanded_allocno, loop_compare_func): Use loop_num
1032         instead of loop->num.
1033         (mark_loops_for_removal): Ditto.  Use loop_num instead of loop->num.
1034         (mark_all_loops_for_removal): Ditto.
1035         (remove_unnecessary_regions): Separate the case when CFG loops
1036         are not built.
1037         (ira_build): Remove the parameter.  Use explicit number of regions
1038         when CFG loops are not built.
1039
1040         * ira-color.c (print_loop_title): Separate the case for the root node.
1041         Use loop_num instead of loop->num.
1042         (move_spill_restore): Use loop_num instead of loop->num.
1043
1044         * ira-emit.c (setup_entered_from_non_parent_p): Add an assertion.
1045         (change_loop): Ditto.
1046         (change_loop): Use loop_num instead of loop->num.
1047
1048         * ira-lives.c (process_bb_node_lives): Ditto.
1049
1050         * ira-costs.c (print_allocno_costs, find_costs_and_classes): Ditto.
1051
1052         * ira-conflicts.c (print_allocno_conflicts): Ditto.
1053
1054 2012-01-19  Jakub Jelinek  <jakub@redhat.com>
1055
1056         PR libmudflap/40778
1057         * tree-mudflap.c (mf_artificial): New function.
1058         (execute_mudflap_function_ops, execute_mudflap_function_decls,
1059         mx_register_decls, mudflap_enqueue_decl): Use it.
1060
1061         PR target/51876
1062         * config/arm/neon.md (*neon_vswp<mode>): Fix up operand
1063         numbers in the insn pattern.
1064
1065 2012-01-19  Michael Matz  <matz@suse.de>
1066
1067         PR tree-optimization/46590
1068         * cfgexpand.c (add_scope_conflicts_1): New old_conflicts argument,
1069         use it in remembering which conflicts we already created.
1070         (add_scope_conflicts): Adjust call to above, (de)allocate helper
1071         bitmap.
1072
1073 2012-01-19  Aldy Hernandez  <aldyh@redhat.com>
1074
1075         PR lto/51280
1076         * lto-wrapper.c (run_gcc): Pass -fgnu_tm on.
1077         (merge_and_complain): Same.
1078
1079 2012-01-19  Jakub Jelinek  <jakub@redhat.com>
1080
1081         PR bootstrap/50237
1082         * config/initfini-array.h: Guard content of the header
1083         with #ifdef HAVE_INITFINI_ARRAY.
1084         * configure.ac: Move gcc_AC_INITFINI_ARRAY much later into the file.
1085         Add initfini-array.h to tm_file here.
1086         * acinclude.m4 (gcc_AC_INITFINI_ARRAY): For non-ia64 do a linker test.
1087         * config.gcc: Don't add initfini-array.h to tm_file here.
1088         * configure: Regenerated.
1089
1090 2012-01-19  Andrey Belevantsev  <abel@ispras.ru>
1091
1092         PR rtl-optimization/51505
1093         * df-problems.c (df_kill_notes): New parameter live. Update comment.
1094         Remove REG_EQUAL/REG_EQUIV notes referring to dead registers.
1095         (df_note_bb_compute): Update the call to df_kill_notes.
1096
1097 2012-01-18  Aldy Hernandez  <aldyh@redhat.com>
1098
1099         * trans-mem.c (requires_barrier): Remove call to is_global_var.
1100
1101 2012-01-18  Richard Guenther  <rguenther@suse.de>
1102
1103         * tree-ssa.c (useless_type_conversion_p): Remove special-casing
1104         of conversions to void *.
1105
1106 2012-01-17  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
1107             Richard Sandiford  <rdsandiford@googlemail.com>
1108
1109         PR middle-end/50325
1110         PR middle-end/51192
1111         * optabs.h (simplify_expand_binop): Declare.
1112         * optabs.c (simplify_expand_binop): Make global.
1113         * expmed.c (store_bit_field_1): Use simplify_expand_binop on big
1114         endian targets if the source cannot be exactly covered by word
1115         mode chunks.
1116
1117 2012-01-17  Jakub Jelinek  <jakub@redhat.com>
1118
1119         PR bootstrap/51872
1120         * hard-reg-set.h (struct hard_reg_set_container): New type.
1121         * target.h (struct hard_reg_set_container): Forward declare.
1122         * target.def (set_up_by_prologue): New target hook.
1123         * doc/tm.texi.in (TARGET_SET_UP_BY_PROLOGUE): Document it.
1124         * doc/tm.texi: Regenerated.
1125         * function.c (thread_prologue_and_epilogue_insns): Change
1126         set_up_by_prologue HARD_REG_SET into struct hard_reg_set_container.
1127         Call targetm.set_up_by_prologue on it.
1128         * config/rs6000/rs6000.c (rs6000_set_up_by_prologue): New function.
1129         (TARGET_SET_UP_BY_PROLOGUE): Redefine to it.
1130
1131 2012-01-17  Nick Clifton  <nickc@redhat.com>
1132
1133         * config/rx/rx.c (rx_can_use_simple_return): New function.
1134         * config/rx/rx-protos.h (rx_can_use_simple_return): Prototype.
1135         * config/rx/rx.md (return): Predicate on rx_can_use_simple_return.
1136
1137 2012-01-17  Richard Guenther  <rguenther@suse.de>
1138
1139         PR middle-end/51782
1140         * expr.c (expand_assignment): Take address-space information
1141         from the address operand of MEM_REF and TARGET_MEM_REF.
1142         (expand_expr_real_1): Likewise.
1143
1144 2012-01-17  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
1145
1146         * ira.c (do_reload): Make sure ira_dump_file is re-set if no
1147         reload dump is requested.
1148
1149 2012-01-17  Aldy Hernandez  <aldyh@redhat.com>
1150
1151         PR other/51165
1152         * trans-mem.c (requires_barrier): Call may_be_aliased.
1153
1154 2012-01-17  Jakub Jelinek  <jakub@redhat.com>
1155
1156         PR tree-optimization/51877
1157         * tree-ssa-tail-merge.c (gimple_equal_p): Don't return true whenever
1158         call arguments and fndecls compare equal, instead return false if they
1159         don't.  Return true only if lhs1 and lhs2 are either both NULL, or
1160         both SSA_NAMEs that are valueized the same, or they satisfy
1161         operand_equal_p.
1162
1163 2012-01-17  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1164
1165         * configure.ac (gcc_cv_target_dl_iterate_phdr): Only check on
1166         Solaris 11+.
1167         * configure: Regenerate.
1168
1169 2012-01-16  Jan Hubicka  <jh@suse.cz>
1170
1171         PR c/12245
1172         PR c++/14179
1173         * convert.c (convert_to_integer): Use fold_convert for
1174         converting an INTEGER_CST to integer type.
1175
1176 2012-01-16  Jason Merrill  <jason@redhat.com>
1177
1178         PR c++/14179
1179         * vec.c (vec_gc_o_reserve_1): Use ggc_round_alloc_size.
1180
1181 2012-01-16  Jakub Jelinek  <jakub@redhat.com>
1182
1183         PR bootstrap/51860
1184         * config/s390/s390.c (s390_chunkify_start): Don't skip
1185         call insns followed by NOTE_INSN_CALL_ARG_LOCATION note.  Skip
1186         NOTE_INSN_VAR_LOCATION and NOTE_INSN_CALL_ARG_LOCATION notes.
1187         If insn is followed by NOTE_INSN_VAR_LOCATION or
1188         NOTE_INSN_CALL_ARG_LOCATION notes, insert jump after all those notes.
1189         Don't use location of note insns.
1190
1191         PR tree-optimization/51865
1192         * tree-inline.c (tree_function_versioning): Call remap_decl
1193         on DECL_RESULT whenever it has VOID_TYPE_P type.
1194
1195 2012-01-15  Richard Sandiford  <rdsandiford@googlemail.com>
1196
1197         * config/mips/mips.c (mips16_build_call_stub): Don't use a stub
1198         for calls to locally-binding MIPS16 functions if only the return
1199         type uses float regs.
1200
1201 2012-01-15  Chung-Lin Tang  <cltang@codesourcery.com>
1202             Richard Sandiford  <rdsandiford@googlemail.com>
1203
1204         * config/mips/mips-protos.h (SYMBOL_FORCE_TO_MEM): Delete.
1205         (SYMBOL_32_HIGH): Likewise.
1206         (mips_output_tls_reloc_directive): Declare.
1207         * config/mips/mips.h (PIC_FUNCTION_ADDR_REGNUM): Move to mips.md.
1208         (mips_use_pcrel_pool_p, mips_lo_relocs, mips_hi_relocs): Declare.
1209         * config/mips/mips.c (mips_use_pcrel_pool_p): New variable.
1210         (mips_lo_relocs, mips_hi_relocs): Make extern.
1211         (mips16_stub_function): Move up file.
1212         (mips_classify_symbol): Remove SYMBOL_FORCE_TO_MEM handling.
1213         (mips_symbolic_constant_p): Likewise.  Remove SYMBOL_32_HIGH too.
1214         (mips_symbol_insns_1): Likewise.  Check mips_use_pcrel_pool_p.
1215         (mips_cannot_force_const_mem): Use mips_use_pcrel_pool_p instead of
1216         SYMBOL_FORCE_TO_MEM.  Only check mips_tls_symbol_ref_1 if it's false.
1217         (mips_get_tp): Add MIPS16 support.
1218         (mips_legitimize_tls_address): Remove MIPS16 sorry().
1219         Generalize DTPREL and TPREL handling.
1220         (mips_init_relocs): Initialize mips_use_pcrel_pool_p.
1221         Add MIPS16 TLS support.
1222         (mips_output_tls_reloc_directive): New function.
1223         (mips16_rewrite_pool_refs): Ignore UNSPEC_TLS_GET_TPs.
1224         * config/mips/predicates.md (symbolic_operand_with_high)
1225         (tls_reloc_operand): New predicates.
1226         (force_to_mem_operand): Use mips_use_pcrel_pool_p.
1227         * config/mips/mips.md (UNSPEC_UNSHIFTED_HIGH): New unspec.
1228         (PIC_FUNCTION_ADDR_REGNUM): Moved from mips.h.
1229         (*unshifted_high): New instruction.  Use it for MIPS16 high splitter.
1230         (consttable_tls_reloc, tls_get_tp_mips16_<mode>): New patterns.
1231         (*tls_get_tp_mips16_call_<mode>): Likewise.
1232
1233 2012-01-15  Uros Bizjak  <ubizjak@gmail.com>
1234
1235         PR rtl-optimization/51821
1236         * recog.c (peep2_find_free_register): Determine clobbered registers
1237         from insn pattern.
1238
1239 2012-01-14  Denis Chertykov  <chertykov@gmail.com>
1240
1241         PR target/50925
1242         * config/avr/avr-protos.h: Revert change of 2012-01-09.
1243         * config/avr/avr.c: Likewise.
1244         * config/avr/avr.h: Likewise.
1245
1246 2012-01-13  Ian Lance Taylor  <iant@google.com>
1247
1248         PR c++/50012
1249         * tree.h (TYPE_QUALS): Add cast to int.
1250         (TYPE_QUALS_NO_ADDR_SPACE): Likewise.
1251
1252 2012-01-13  Ian Lance Taylor  <iant@google.com>
1253
1254         * ipa-cp.c (ipa_get_indirect_edge_target): Add typecasts when
1255         comparing param_index to VEC_length result.
1256
1257 2012-01-13  Steven Bosscher  <steven@gcc.gnu.org>
1258
1259         * c-decl.c: Do not include tree-mudflap.h
1260         * tree-optimize.c: Likewise.
1261         * Makefile.in: Update dependencies.
1262
1263 2012-01-13  Richard Guenther  <rguenther@suse.de>
1264
1265         PR middle-end/8081
1266         * gimplify.c (gimplify_modify_expr_rhs): For calls with a
1267         variable-sized result always use RSO.
1268
1269 2012-01-12  DJ Delorie  <dj@redhat.com>
1270
1271         * cfgexpand.c (convert_debug_memory_address): Allow any valid
1272         pointer type, not just the default pointer type.
1273
1274 2012-01-09  Richard Henderson  <rth@redhat.com>
1275             Denis Chertykov  <chertykov@gmail.com>
1276
1277         PR target/50925
1278         * config/avr/avr-protos.h (avr_hard_regno_nregs): Declare.
1279         * config/avr/avr.c (avr_can_eliminate): Simplify.
1280         (avr_initial_elimination_offset): Likewise.
1281         (avr_prologue_setup_frame): Use hard_frame_pointer_rtx.
1282         (expand_epilogue): Likewise.
1283         (avr_legitimize_address): Gut.
1284         (avr_legitimize_reload_address): Use hard_frame_pointer_rtx.
1285         (avr_hard_regno_nregs): New.
1286         (avr_hard_regno_ok): Allow only Pmode for arg and frame_pointers.
1287         (avr_regno_mode_code_ok_for_base_b): Handle arg and frame pointers.
1288         * config/avr/avr.h (FIXED_REGISTERS): Adjust arg pointer,
1289         add soft frame pointer.
1290         (CALL_USED_REGISTERS): Likewise.
1291         (REG_CLASS_CONTENTS): Likewise.
1292         (REGISTER_NAMES): Likewise.
1293         (HARD_REGNO_NREGS): Use avr_hard_regno_nregs.
1294         (HARD_FRAME_POINTER_REGNUM): New.
1295         (FRAME_POINTER_REGNUM): Use soft frame pointer.
1296         (ELIMINABLE_REGS): Eliminate from the soft frame pointer,
1297         remove the HARD_FRAME_POINTER self-elimination.
1298
1299 2012-01-12  Georg-Johann Lay  <avr@gjlay.de>
1300
1301         PR target/51756
1302         * config/avr/avr.c (avr_encode_section_info): Test for absence of
1303         DECL_EXTERNAL when checking for initializers of progmem variables.
1304
1305 2012-01-12  Ira Rosen  <irar@il.ibm.com>
1306
1307         PR tree-optimization/51799
1308         * tree-vect-patterns.c (vect_recog_over_widening_pattern): Check
1309         that the last operation is a type demotion.
1310
1311 2012-01-12  Uros Bizjak  <ubizjak@gmail.com>
1312
1313         * config/i386/i386.md (*zero_extendsidi2_rex64): Correct movl template.
1314         (x86_shift<mode>_adj_1): Remove operand constraint from operand 3.
1315
1316 2012-01-11  Jakub Jelinek  <jakub@redhat.com>
1317
1318         PR bootstrap/51796
1319         * combine.c (distribute_notes): If i3 is a noreturn call,
1320         allow old_size to be equal to args_size and make sure the
1321         noreturn call gets REG_ARGS_SIZE note.
1322         * expr.c (fixup_args_size_notes): Put REG_ARGS_SIZE notes
1323         on noreturn calls even when the delta is 0.
1324
1325 2012-01-11  Nathan Sidwell  <nathan@acm.org>
1326
1327         * gcov.c (STRING_SIZE): Remove.
1328         (generate_results): Erase annotations for source files with no
1329         coverage information.
1330         (read_line): New.
1331         (output_lines): Use it.
1332
1333 2012-01-11  Eric Botcazou  <ebotcazou@adacore.com>
1334
1335         * gimple.h (gimplify_body): Remove first argument.
1336         * gimplify.c (copy_if_shared): Add DATA argument.  Do not create the
1337         pointer set here, instead just pass DATA to walk_tree.
1338         (unshare_body): Remove BODY_P argument and adjust.  Create the pointer
1339         set here and invoke copy_if_shared on the size trees of DECL_RESULT.
1340         (unvisit_body): Likewise, but with unmark_visited.
1341         (gimplify_body): Remove BODY_P argument and adjust.
1342         (gimplify_function_tree): Adjust call to gimplify_body.
1343         * omp-low.c (finalize_task_copyfn): Likewise.
1344
1345 2012-01-11  Eric Botcazou  <ebotcazou@adacore.com>
1346
1347         * tree.h (build_function_decl_skip_args): Add boolean parameter.
1348         (build_function_type_skip_args): Delete.
1349         * tree.c (build_function_type_skip_args): Make static and add
1350         SKIP_RETURN parameter.  Fix thinko in the handling of variants.
1351         (build_function_decl_skip_args): Add SKIP_RETURN parameter and
1352         pass it to build_function_type_skip_args.
1353         * cgraph.h (cgraph_function_versioning): Add boolean parameter.
1354         (tree_function_versioning): Likewise.
1355         * cgraph.c (cgraph_create_virtual_clone): Adjust call to
1356         build_function_decl_skip_args.
1357         * cgraphunit.c (cgraph_function_versioning): Add SKIP_RETURN parameter
1358         and pass it to build_function_decl_skip_args/tree_function_versioning.
1359         (cgraph_materialize_clone): Adjust call to tree_function_versioning.
1360         * ipa-inline-transform.c (save_inline_function_body): Likewise.
1361         * trans-mem.c (ipa_tm_create_version): Likewise.
1362         * tree-sra.c (modify_function): Ditto for cgraph_function_versioning.
1363         * tree-inline.c (declare_return_variable): Remove always-true test.
1364         (tree_function_versioning): Add SKIP_RETURN parameter.  If the function
1365         returns non-void and SKIP_RETURN, create a void-typed RESULT_DECL.
1366         * ipa-split.c (split_function): Skip the return value for the split
1367         part if it doesn't return.
1368
1369 2012-01-11  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
1370
1371         PR tree-optimization/49642
1372         * ipa-split.c (forbidden_dominators): New variable.
1373         (check_forbidden_calls): New function.
1374         (dominated_by_forbidden): Likewise.
1375         (consider_split): Check for forbidden dominators.
1376         (execute_split_functions): Initialize and free forbidden
1377         dominators info; call check_forbidden_calls.
1378
1379 2012-01-11  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>
1380
1381         * config/arm/arm.md (mov_notscc): Use MVN for false condition.
1382
1383 2012-01-11  Nick Clifton  <nickc@redhat.com>
1384
1385         * config/rx/rx.md (return): Define pattern.
1386
1387 2012-01-11  Richard Guenther  <rguenther@suse.de>
1388
1389         * doc/extend.texi (malloc attribute): Adjust according to
1390         implementation.
1391
1392 2012-01-10  Aldy Hernandez  <aldyh@redhat.com>
1393             Patrick Marlier  <patrick.marlier@gmail.com>
1394
1395         PR middle-end/51516
1396         * trans-mem.c (get_cg_data): Traverse aliases if requested.
1397         (ipa_tm_scan_calls_block): Update parameters to get_cg_data.
1398         (ipa_tm_note_irrevocable): Same.
1399         (ipa_tm_scan_irr_block): Same.
1400         (ipa_tm_decrement_clone_counts): Same.
1401         (ipa_tm_scan_irr_function): Same.
1402         (ipa_tm_create_version_alias): Same.
1403         (ipa_tm_create_version): Same.
1404         (ipa_tm_transform_calls_redirect): Same.
1405         (ipa_tm_transform_calls): Same.
1406         (ipa_tm_transform_transaction): Same.
1407         (ipa_tm_execute): Same.
1408
1409 2012-01-10  Richard Guenther  <rguenther@suse.de>
1410
1411         PR middle-end/51806
1412         * opts.c (common_handle_option): Handle -Werror.
1413
1414 2012-01-10  Andreas Schwab  <schwab@linux-m68k.org>
1415
1416         * config/m68k/sync.md ("atomic_compare_and_swap<mode>_1"): Fix
1417         operand number.
1418
1419 2012-01-10  Jason Merrill  <jason@redhat.com>
1420
1421         * doc/invoke.texi (C++ Dialect Options): Update -fabi-version=6
1422         information.
1423
1424 2012-01-10  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1425
1426         * configure.ac (gcc_cv_as_ix86_tlsgdplt): Check if linker
1427         supports R_386_TLS_GD_PLT reloc.
1428         (gcc_cv_as_ix86_tlsldmplt): Check if linker
1429         supports R_386_TLS_LDM_PLT reloc.
1430         * configure: Regenerate.
1431         * config.in: Regenerate.
1432
1433 2012-01-10  Georg-Johann Lay  <avr@gjlay.de>
1434
1435         PR target/49868
1436         Extend __pgmx semantics to linearize memory.
1437         * config/avr/avr.md (mov<mode>): Use avr_xload_libgcc_p to
1438         determine if code comes inline or from libgcc.
1439         (MOVMEM_r_d:HI): Add "w" to constraint for better preference.
1440         (movmem_qi, movmem_qi): Set constraint #2 to "n".
1441         (movmem_qi_elpm, movmem_hi_elpm): Remove insns.
1442         (movmemx_qi, movmemx_hi): New insns.
1443         (xload_<mode>_libgcc): Rewrite to new insn condition.
1444         (xload_<mode>): Remove insns.
1445         * config/avr/avr.c (avr_out_xload): Rewrite: Only need to handle
1446         cases that don't satisfy avr_xload_libgcc_p().
1447         (avr_addr_space_convert): Allow converting in any direction.
1448         (avr_addr_space_subset_p): Return always true.
1449         (avr_xload_libgcc_p): Rewrite to fit new __pgmx semantics.
1450         (avr_emit_movmemhi): Ditto.
1451         (avr_out_lpm): No need to handle ADDR_SPACE_PGMX any more.
1452         (avr_out_movmem): Ditto.
1453         (AVR_SYMBOL_FLAG_PROGMEM): New macro.
1454         (AVR_SYMBOL_SET_ADDR_SPACE): New macro.
1455         (AVR_SYMBOL_GET_ADDR_SPACE): New macro.
1456         (avr_encode_section_info): Encode 'progmem' in symbol flags.
1457         (output_reload_in_const): Don't zero-extend any 24-bit symbols.
1458
1459 2012-01-10  Richard Guenther  <rguenther@suse.de>
1460
1461         PR tree-optimization/50913
1462         * graphite-scop-detection.c (stmt_has_simple_data_refs_p):
1463         Require data-refs to be representable by Graphite with respect
1464         to any loop nest.
1465
1466 2012-01-10  Uros Bizjak  <ubizjak@gmail.com>
1467
1468         * config/i386/constraints.md ("L"): Return true for 0xffffffff.
1469         * config/i386/i386.c (*anddi_1): Emit AND with 0xffffffff as MOV.
1470
1471 2012-01-10  Tom de Vries  <tom@codesourcery.com>
1472
1473         PR rtl-optimization/51271
1474         * dwarf2cfi.c (scan_trace): Save and restore cur_row->reg_save when
1475         handling annulled branch.
1476
1477 2012-01-10  Richard Henderson  <rth@redhat.com>
1478
1479         * config/arm/arm.c (arm_vectorize_vec_perm_const_ok,
1480         TARGET_VECTORIZE_VEC_PERM_CONST_OK, neon_split_vcombine, MAX_VECT_LEN,
1481         struct expand_vec_perm_d, arm_expand_vec_perm_1, arm_expand_vec_perm,
1482         arm_evpc_neon_vuzp, arm_evpc_neon_vzip, arm_evpc_neon_vrev,
1483         arm_evpc_neon_vtrn, arm_evpc_neon_vtbl, arm_expand_vec_perm_const_1,
1484         arm_expand_vec_perm_const): New.
1485         * config/arm/arm-protos.h: Update.
1486         * config/arm/neon.md (UNSPEC_VCONCAT): New.
1487         (*neon_vswp<VDQX>): New.
1488         (neon_vcombine<VDX>): Use neon_split_vcombine.
1489         (neon_vtbl1v16qi, neon_vtbl2v16qi, neon_vcombinev16qi): New.
1490         * config/arm/vec-common.md (vec_perm_const<VALL>): New.
1491         (vec_perm<VE>): New.
1492
1493 2012-01-10  Richard Henderson  <rth@redhat.com>
1494
1495         * config/arm/arm.c (arm_gen_compare_reg): Add scratch argument;
1496         use it if reload_completed.
1497         (arm_legitimize_sync_memory, arm_emit, arm_insn_count, arm_count,
1498         arm_output_asm_insn, arm_process_output_memory_barrier,
1499         arm_output_memory_barrier, arm_ldrex_suffix, arm_output_ldrex,
1500         arm_output_strex, arm_output_it, arm_output_op2, arm_output_op3,
1501         arm_output_sync_loop, arm_get_sync_operand, FETCH_SYNC_OPERAND,
1502         arm_process_output_sync_insn, arm_output_sync_insn,
1503         arm_sync_loop_insns, arm_call_generator, arm_expand_sync): Remove.
1504         (arm_pre_atomic_barrier, arm_post_atomic_barrier): New.
1505         (arm_emit_load_exclusive, arm_emit_store_exclusive): New.
1506         (emit_unlikely_jump): New.
1507         (arm_expand_compare_and_swap, arm_split_compare_and_swap): New.
1508         (arm_split_atomic_op): New.
1509         * config/arm/arm-protos.h: Update.
1510         * config/arm/arm.h (enum arm_sync_generator_tag): Remove.
1511         (struct arm_sync_generator): Remove.
1512         * config/arm/arm.md (VUNSPEC_SYNC_COMPARE_AND_SWAP, VUNSPEC_SYNC_LOCK,
1513         VUNSPEC_SYNC_OP, VUNSPEC_SYNC_NEW_OP, VUNSPEC_SYNC_OLD_OP): Remove.
1514         (VUNSPEC_ATOMIC_CAS, VUNSPEC_ATOMIC_XCHG, VUNSPEC_ATOMIC_OP): New.
1515         (VUNSPEC_LL, VUNSPEC_SC): New.
1516         (sync_result, sync_memory, sync_required_value, sync_new_value,
1517         sync_t1, sync_t2, sync_release_barrier, sync_op): Remove.
1518         (attr length): Don't use arm_sync_loop_insns.
1519         (cbranch_cc, cstore_cc): Update call to arm_gen_compare_reg.
1520         (movsfcc, movdfcc): Likewise.
1521         * config/arm/constraints.md (Ua): New.
1522         * config/arm/prediates.md (mem_noofs_operand): New.
1523         (sync_compare_and_swap<QHSD>, sync_lock_test_and_set<QHSD>): Remove.
1524         (sync_clobber, sync_t2_reqd): Remove.
1525         (sync_<syncop><QHSD>, sync_nand<QHSD>): Remove.
1526         (sync_new_<syncop><QHSD>, sync_new_nand<QHSD>): Remove.
1527         (sync_old_<syncop><QHSD>, sync_old_nand<QHSD>): Remove.
1528         (arm_sync_compare_and_swap<SIDI>): Remove.
1529         (arm_sync_compare_and_swap<NARROW>): Remove.
1530         (arm_sync_lock_test_and_set<SIDI>): Remove.
1531         (arm_sync_lock_test_and_set<NARROW>): Remove.
1532         (arm_sync_new_<syncop><SIDI>): Remove.
1533         (arm_sync_new_<syncop><NARROW>): Remove.
1534         (arm_sync_new_nand<SIDI>): Remove.
1535         (arm_sync_new_nand<NARROW>): Remove.
1536         (arm_sync_old_<syncop><SIDI>): Remove.
1537         (arm_sync_old_<syncop><NARROW>): Remove.
1538         (arm_sync_old_nand<SIDI>): Remove.
1539         (arm_sync_old_nand<NARROW>): Remove.
1540         (*memory_barrier): Merge arm_output_memory_barrier.
1541         (atomic_compare_and_swap<QHSD>): New.
1542         (atomic_compare_and_swap<NARROW>_1): New.
1543         (atomic_compare_and_swap<SIDI>_1): New.
1544         (atomic_exchange<QHSD>): New.
1545         (cas_cmp_operand, cas_cmp_str): New.
1546         (atomic_op_operand, atomic_op_str): New.
1547         (atomic_<syncop><QHSD>, atomic_nand<QHSD>): New.
1548         (atomic_fetch_<syncop><QHSD>, atomic_fetch_nand<QHSD>): New.
1549         (atomic_<syncop>_fetch<QHSD>, atomic_nand_fetch<QHSD>): New.
1550         (arm_load_exclusive<NARROW>): New.
1551         (arm_load_exclusivesi, arm_load_exclusivedi): New.
1552         (arm_store_exclusive<QHSD>): New.
1553
1554 2012-01-09  Michael Meissner  <meissner@linux.vnet.ibm.com>
1555
1556         * config/rs6000/rs6000.c (rs6000_init_hard_regno_mode_ok): Add DF
1557         reload patterns if -mvsx-scalar-memory.
1558
1559         * config/rs6000/vsx.md (vsx_xscvspdp): Allow xscvspdp to be
1560         generated, even -mno-vsx-scalar-double was used.
1561         (vsx_xscvdpsp_scalar): Likewise.
1562         (vsx_xscvspdp_scalar2): Likewise.
1563
1564 2012-01-09  Tom de Vries  <tom@codesourcery.com>
1565             Andrew Pinski  <apinski@cavium.com>
1566
1567         PR debug/51471
1568         * reorg.c (fill_slots_from_thread): Don't speculate
1569         frame-related insns.
1570
1571 2012-01-09  Richard Sandiford  <rdsandiford@googlemail.com>
1572
1573         * sched-int.h (bb_note): Move to...
1574         * basic-block.h: ...here.
1575         * haifa-sched.c (bb_note): Move to...
1576         * cfgrtl.c: ...here.
1577         * function.c (next_block_for_reg): New function.
1578         (move_insn_for_shrink_wrap): Likewise.
1579         (prepare_shrink_wrap): Rewrite to use the above.
1580
1581 2012-01-09  Aldy Hernandez  <aldyh@redhat.com>
1582
1583         * gimple.c (is_gimple_non_addressable): Remove.
1584         * gimple.h: Remove is_gimple_non_addressable.
1585         * gimplify.c (gimplify_modify_expr_rhs): Use is_gimple_reg instead of
1586         is_gimple_non_addressable.
1587         * trans-mem.c (expand_assign_tm): Same.
1588
1589 2012-01-09  Richard Guenther  <rguenther@suse.de>
1590
1591         PR tree-optimization/51775
1592         * tree-ssa-sccvn.c (visit_use): Value-number throwing stmts.
1593         * tree-ssa-pre.c (eliminate): Properly fixup EH info.
1594
1595 2012-01-09  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>
1596
1597         * config/arm/arm-cores.def (cortex-a15): Use cortex_a15_tune for
1598         tuning parameters.
1599         * config/arm/arm.c (arm_cortex_a15_tune): New static variable.
1600
1601 2012-01-09  Richard Guenther  <rguenther@suse.de>
1602
1603         * tree-streamer-out.c (write_ts_optimization): Fix spelling.
1604
1605 2012-01-08  Jan Hubicka  <jh@suse.cz>
1606
1607         PR tree-optimize/51680
1608         * ipa-inline-analyss.c (evaluate_properties_for_edge): Fix condition
1609         on when known_vals needs to be computed; cleanup.
1610
1611 2012-01-08  Jan Hubicka  <jh@suse.cz>
1612
1613         PR tree-optimize/51694
1614         * ipa-cp.c (ipa_get_indirect_edge_target): Add bounds checks.
1615
1616 2012-01-08  Jonathan Wakely  <jwakely.gcc@gmail.com>
1617
1618         * doc/cpp.texi (Predefined Macros): __STRICT_ANSI__ is defined
1619         for -std=c++98 and -std=c++11 too.
1620
1621 2012-01-08  Chung-Lin Tang  <cltang@codesourcery.com>
1622
1623         * cfgloop.c (cancel_loop): Add free() of bbs array.
1624
1625 2012-01-07  Jan Hubicka  <jh@suse.cz>
1626
1627         PR tree-optimization/51600
1628         * ipa-inline-analysis.c (estimate_edge_devirt_benefit): Disable code
1629         that benefits small functions.
1630
1631 2012-01-07  Jan Hubicka  <jh@suse.cz>
1632
1633         * ipa-inline.c (want_inline_small_function_p): Fix formating.
1634
1635 2012-01-07  Jan Hubicka  <jh@suse.cz>
1636
1637         PR tree-optimization/51680
1638         * ipa-inline.c (want_inline_small_function_p): Be more lax on functions
1639         whose inlining reduce unit size.
1640
1641 2012-01-07  Alexandre Oliva  <aoliva@redhat.com>
1642
1643         PR bootstrap/51725
1644         * cselib.c (new_elt_loc_list): Promote addr_list to canonical node.
1645         Add canonical node to containing_mem chain after the non-canonical
1646         one, even if there weren't any locs to propagate.
1647         (remove_useless_values): Keep only canonical values.
1648         (add_mem_for_addr, cselib_lookup_mem): Canonicalize addr.
1649         (cselib_invalidate_mem): Likewise.  Ensure v is canonical, and
1650         canonicalize mem_chain elements that are not discarded.
1651
1652 2012-01-06  Jakub Jelinek  <jakub@redhat.com>
1653
1654         PR target/47333
1655         * cgraphunit.c (cgraph_optimize): Call output_weakrefs
1656         before emitting functions.
1657
1658         PR gcov-profile/50127
1659         * bb-reorder.c (partition_hot_cold_basic_blocks): Call
1660         clear_aux_for_blocks.
1661
1662 2012-01-06  Alexandre Oliva  <aoliva@redhat.com>
1663
1664         PR debug/51746
1665         * cselib.c (cselib_hash_rtx): Hash incoming VALUEs too.
1666
1667 2012-01-06  Arnaud Charlet  <charlet@adacore.com>
1668
1669         * c-decl.c (ext_block): Moved up.
1670         (collect_all_refs, for_each_global_decl): Take ext_block into account.
1671
1672 2012-01-06  Han Shen  <shenhan@google.com>
1673
1674         Translate built-in include paths for sysroot.
1675         * Makefile.in (gcc_gxx_include_dir_add_sysroot): New.
1676         (PREPROCESSOR_DEFINES): Define GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT.
1677
1678         * cppdefault.c (cpp_include_defaults): Replace hard coded "0" with
1679         GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT for "add_sysroot" field.
1680
1681         * configure.ac (AC_SUBST): Add gcc_gxx_include_dir_add_sysroot to
1682         control whether sysroot should be prepended to gxx include dir.
1683
1684         * configure: Regenerate.
1685
1686 2012-01-06  Torvald Riegel  <triegel@redhat.com>
1687
1688         PR rtl-optimization/51771
1689         * builtin-attrs.def (ATTR_RETURNS_TWICE, ATTR_TM_NOTHROW_RT_LIST): New.
1690         * gtm-builtins.def (BUILT_IN_TM_START): Add returns-twice attrib.
1691
1692 2012-01-05  Eric Botcazou  <ebotcazou@adacore.com>
1693
1694         PR tree-optimization/51315
1695         * tree-sra.c (tree_non_aligned_mem_for_access_p): New predicate.
1696         (build_accesses_from_assign): Use it instead of tree_non_aligned_mem_p.
1697
1698 2012-01-05  Uros Bizjak  <ubizjak@gmail.com>
1699
1700         PR target/51681
1701         * config/ia64/ia64.c (expand_vec_perm_shrp): Use correct operands
1702         for shrp pattern.  Correctly handle and fixup shift variable.
1703         Return false when shift > nelt for BYTES_BIG_ENDIAN target.
1704
1705 2012-01-05  Jakub Jelinek  <jakub@redhat.com>
1706
1707         PR debug/51762
1708         * calls.c (emit_call_1): For noreturn calls force a REG_ARGS_SIZE
1709         note when !ACCUMULATE_OUTGOING_ARGS.
1710
1711 2012-01-05  Eric Botcazou  <ebotcazou@adacore.com>
1712
1713         * tree-vrp.c (extract_range_from_binary_expr_1): Remove duplicated
1714         condition.
1715         (extract_range_from_unary_expr_1): Avoid useless computations.
1716
1717 2012-01-05  Jakub Jelinek  <jakub@redhat.com>
1718
1719         PR rtl-optimization/51767
1720         * cfgrtl.c (force_nonfallthru_and_redirect): Force addition
1721         of jump_block and add an extra edge for degenerated asm gotos.
1722
1723         PR middle-end/51768
1724         * stmt.c (check_unique_operand_names): Don't ICE during error
1725         reporting if i is from labels chain.
1726
1727         PR middle-end/44777
1728         * profile.c (branch_prob): Split bbs that have exit edge
1729         and need a fake entry edge too.
1730
1731 2012-01-05  Jan Hubicka  <jh@suse.cz>
1732
1733         PR middle-end/49710
1734         * cfgloopmanip.c (remove_path): Walk loop hiearchy upwards when
1735         unlooping loops.
1736
1737 2012-01-05  Richard Guenther  <rguenther@suse.de>
1738
1739         PR lto/50490
1740         * tree-streamer-out.c (write_ts_optimization): New function.
1741         (streamer_write_tree_body): Call it.
1742         * tree-streamer-in.c (lto_input_ts_optimization): New function.
1743         (streamer_read_tree_body): Call it.
1744         * lto-streamer-out.c (lto_is_streamable): Handle OPTIMIZATION_NODE.
1745
1746 2012-01-05  Jakub Jelinek  <jakub@redhat.com>
1747
1748         PR middle-end/51761
1749         * gimple.h (struct gimplify_ctx): Add in_cleanup_point_expr field.
1750         * gimplify.c (gimplify_cleanup_point_expr): Save and set
1751         in_cleanup_point_expr before gimplify_stmt call and restore it
1752         afterwards.
1753         (gimplify_target_expr): Don't add {CLOBBER} cleanup if
1754         in_cleanup_point_expr is false.
1755
1756 2012-01-05  Richard Guenther  <rguenther@suse.de>
1757
1758         PR middle-end/51764
1759         * common.opt (Wmudflap, fmudflap, fmudflapth, fmudflapir): Move
1760         to c.opt.
1761         * toplev.c (process_options): Reject combining mudflap and LTO.
1762         * tree-nomudflap.c (nogo): Use sorry instead of internal_error.
1763
1764 2012-01-05  Richard Guenther  <rguenther@suse.de>
1765
1766         PR tree-optimization/51760
1767         * tree-ssa-ccp.c (likely_value): Drop UNDEFINED to CONSTANT,
1768         not VARYING.
1769         (bit_value_unop): Handle UNDEFINED operands.
1770         (bit_value_binop): Likewise.
1771
1772 2012-01-05  Georg-Johann Lay  <avr@gjlay.de>
1773
1774         * config/avr/avr.c (avr_replace_prefix): Remove.
1775         (avr_asm_named_section): Use ACONCAT instead of avr_replace_prefix.
1776         (avr_asm_function_rodata_section): Ditto.
1777         (avr_asm_select_section): Ditto.
1778
1779 2012-01-05  Marcus Shawcroft  <marcus.shawcroft@arm.com>
1780
1781         * reload.c (find_reloads): Adjust LABEL_NUSES on REG_LABEL_OPERAND
1782         insertion.
1783
1784 2012-01-05  Jakub Jelinek  <jakub@redhat.com>
1785
1786         PR bootstrap/51648
1787         * tree-cfg.c (need_fake_edge_p): Return true also for noreturn
1788         calls that have any non-fake successor edges.
1789
1790         PR debug/51746
1791         * var-tracking.c (add_stores): For COND_EXEC allow oval to be NULL.
1792
1793 2012-01-04  Eric Botcazou  <ebotcazou@adacore.com>
1794
1795         PR tree-optimization/51624
1796         * tree-sra.c (build_ref_for_model): When replicating a chain of
1797         COMPONENT_REFs, stop as soon as the offset would become negative.
1798
1799 2012-01-04  Jakub Jelinek  <jakub@redhat.com>
1800
1801         PR debug/51695
1802         * dwarf2out.c (output_loc_list): For now drop >= 64KB expressions
1803         in .debug_loc on the floor.
1804
1805 2012-01-04  Andrew Pinski  <apinski@cavium.com>
1806
1807         * doc/invoke.texi (-march=@var{arch}): Add octeon+ and octeon2.
1808
1809 2012-01-04  Andrew Pinski  <apinski@cavium.com>
1810             Adam Nemet  <anemet@caviumnetworks.com>
1811
1812         * config/mips/mips.md (size): Add SI and DI.
1813         (SIZE): New mode attribute.
1814         (U): New code attribute.
1815         * config/mips/mips-dsp.md (mips_lbux): Use gen_mips_lbux_extsi.
1816         (mips_lbux_<mode>): Delete.
1817         (mips_l<SHORT:size><u>x_ext<GPR:mode>_<P:mode>): New pattern.
1818         (mips_lhx): Use gen_mips_lhx_extsi.
1819         (mips_lhx_<mode>): Delete.
1820         (mips_lwx): Delete.
1821         (mips_l<size>x): New expand.
1822         (mips_lwx_<mode>): Delete.
1823         (mips_l<GPR:size>x_<P:mode>): New pattern.
1824         (*mips_lw<u>x_<P:mode>_ext): Likewise.
1825         * config/mips/mips-ftypes.def: Add DI f(POINTER, SI) function type.
1826         * config/mips/mips.c (mips_lx_address_p): New function.
1827         (mips_rtx_costs <case MEM>): Call mips_lx_address_p.
1828         (dsp64): New availability predicate.
1829         (mips_builtins): Add an entry for __builtin_mips_ldx.
1830         * config/mips/mips.h (ISA_HAS_LBX): New define.
1831         (ISA_HAS_LBUX): Likewise.
1832         (ISA_HAS_LHX): Likewise.
1833         (ISA_HAS_LHUX): Likewise.
1834         (ISA_HAS_LWX): Likewise.
1835         (ISA_HAS_LWUX): Likewise.
1836         (ISA_HAS_LDX): Likewise.
1837         * doc/extend.texi (__builtin_mips_ldx): Document.
1838
1839 2012-01-04  Tristan Gingold  <gingold@adacore.com>
1840
1841         * config/vms/xm-vms.h (HOST_LONG_FORMAT, HOST_PTR_PRINTF): Define
1842         when long pointers are used.
1843         * config.build (*-*-*vms*): Handle all OpenVMS targets.
1844         (alpha64-dec-*vms*, alpha*-dec-*vms*)
1845         (ia64-hp-*vms*): Remove.
1846         * config/vms/xm-vms64.h: Delete.
1847
1848 2012-01-04  Aldy Hernandez  <aldyh@redhat.com>
1849
1850         PR middle-end/51472
1851         * trans-mem.c (expand_assign_tm): Handle TM_MEMMOVE loads correctly.
1852
1853 2012-01-04  Aldy Hernandez  <aldyh@redhat.com>
1854
1855         * opts.c (finish_options): Remove duplicate sorry.
1856
1857 2012-01-04  Aldy Hernandez  <aldyh@redhat.com>
1858
1859         PR middle-end/51696
1860         * trans-mem.c (diagnose_tm_1): Display indirect calls with no name
1861         correctly.
1862
1863 2012-01-04  Richard Guenther  <rguenther@suse.de>
1864
1865         PR middle-end/51750
1866         * tree.c (size_low_cst): New function.
1867         * tree.h (size_low_cst): Declare.
1868         * fold-const.c (fold_comparison): Use it to extract the low
1869         part of the POINTER_PLUS_EXPR offset.
1870
1871 2012-01-04  Georg-Johann Lay  <avr@gjlay.de>
1872
1873         Fix clearing ZERO_REG
1874         * config/avr/avr.md (cc): Add alternative "ldi".
1875         (movqi_insn): Use it in cc attribute.
1876         * config/avr/avr.c (notice_update_cc): Handle CC_LDI.
1877         (output_reload_in_const): Use CLR to move 0 to ZERO_REG.
1878         (output_reload_insisf): Use ZERO_REG to pre-clear register.
1879
1880 2012-01-04  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
1881
1882         * configure: Regenerate.
1883
1884 2012-01-04  Richard Guenther  <rguenther@suse.de>
1885
1886         PR tree-optimization/49651
1887         * tree-ssa-structalias.c (type_can_have_subvars): New function.
1888         (var_can_have_subvars): Use it.
1889         (get_constraint_for_1): Only consider subfields if there can be any.
1890
1891 2012-01-03  Jakub Jelinek  <jakub@redhat.com>
1892
1893         PR bootstrap/51725
1894         * cselib.c (new_elt_loc_list): When moving locs from one cselib_val
1895         to its new canonical_cselib_val and the cselib_val was in
1896         first_containing_mem chain, but the canonical_cselib_val was not,
1897         add the latter into the chain.
1898         (cselib_invalidate_mem): Compare canonical_cselib_val of
1899         addr_list chain elt with v.
1900
1901         PR pch/51722
1902         * dwarf2out.c (dwarf2out_start_source_file, dwarf2out_define,
1903         dwarf2out_undef): Allocate e.info using ggc_strdup instead
1904         of xstrdup.
1905         (output_macinfo_op): Don't ggc_strdup fd->filename.
1906         (optimize_macinfo_range): Allocate grp_name using XALLOCAVEC,
1907         then ggc_strdup it.  Don't free inc->info or cur->info.
1908         (output_macinfo): Don't free ref->info or file->info.
1909
1910 2012-01-03  Ira Rosen  <irar@il.ibm.com>
1911
1912         PR tree-optimization/51269
1913         * tree-vect-loop-manip.c (set_prologue_iterations): Make
1914         first_niters a pointer.
1915         (slpeel_tree_peel_loop_to_edge): Likewise.
1916         (vect_do_peeling_for_loop_bound): Update call to
1917         slpeel_tree_peel_loop_to_edge.
1918         (vect_gen_niters_for_prolog_loop): Don't compute wide_prolog_niters
1919         here.  Remove it from the parameters list.
1920         (vect_do_peeling_for_alignment): Update calls and compute
1921         wide_prolog_niters.
1922
1923 2012-01-03  Richard Guenther  <rguenther@suse.de>
1924
1925         PR tree-optimization/51070
1926         * tree-loop-distribution.c (stmt_has_scalar_dependences_outside_loop):
1927         Properly handle calls.
1928
1929 2012-01-03  Richard Guenther  <rguenther@suse.de>
1930
1931         PR tree-optimization/51692
1932         * tree-ssa-dce.c (eliminate_unnecessary_stmts): Do not remove
1933         the LHS of allocation stmts.
1934
1935 2012-01-03  Olivier Hainque  <hainque@adacore.com>
1936
1937         * system.h: Prior to #define, #undef fopen and freopen unconditionally.
1938
1939 2012-01-03  Olivier Hainque  <hainque@adacore.com>
1940
1941         * collect2.c (main): In AIX specific computations for vector
1942         insertions, use CONST_CAST2 to cast from char ** to const char **.
1943
1944 2012-01-03  Richard Guenther  <rguenther@suse.de>
1945
1946         PR debug/51650
1947         * dwarf2out.c (dwarf2out_finish): Always create a DIE for
1948         the context of a limbo DIE when it does not already exist.
1949
1950 2012-01-03  Jakub Jelinek  <jakub@redhat.com>
1951
1952         PR tree-optimization/51719
1953         * value-prof.c (gimple_ic): When indirect call isn't noreturn,
1954         but direct call is, clear direct call's lhs and don't add fallthrough
1955         edge from dcall_bb to join_bb and PHIs.
1956
1957 2012-01-03  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
1958
1959         * config/s390/s390.md ("*cmp<mode>_ccs"): Fix comment mentioning
1960         the instructions emitted by the pattern.
1961         ("*TDC_insn_<mode>"): Add comment.
1962
1963 2012-01-03  Richard Guenther  <rguenther@suse.de>
1964
1965         PR middle-end/51730
1966         * fold-const.c (fold_comparison): Properly canonicalize
1967         tree offset and HOST_WIDE_INT bit position.
1968
1969 2012-01-02  Uros Bizjak  <ubizjak@gmail.com>
1970
1971         * config/ia64/ia64.c (expand_vec_perm_broadcast): Use correct
1972         operands for extzv pattern.
1973
1974 2012-01-02  Jakub Jelinek  <jakub@redhat.com>
1975
1976         PR bootstrap/51725
1977         * cselib.c (add_mem_for_addr): Call canonical_cselib_val
1978         on mem_elt first.
1979
1980 2012-01-02  Sandra Loosemore  <sandra@codesourcery.com>
1981
1982         * doc/invoke.texi (-flto and related options): Copy-edit.
1983
1984 2012-01-02  Richard Sandiford  <rdsandiford@googlemail.com>
1985
1986         * config/mips/mips.md (loadgp_newabi_<mode>): Add missing earlyclobber.
1987
1988 2012-01-02  Jakub Jelinek  <jakub@redhat.com>
1989
1990         * config/i386/sse.md (*avx2_gatherdi<mode>_3, *avx2_gatherdi<mode>_4):
1991         New patterns.
1992
1993 2012-01-02  Richard Sandiford  <rdsandiford@googlemail.com>
1994
1995         * expr.h (move_by_pieces_ninsns): Declare.
1996         * expr.c (move_by_pieces_ninsns): Make external.
1997         * config/mips/mips-protos.h (mips_move_by_pieces_p): Declare.
1998         (mips_store_by_pieces_p): Likewise.
1999         * config/mips/mips.h (MOVE_BY_PIECES_P): Call mips_move_by_pieces_p.
2000         (STORE_BY_PIECES_P): Likewise mips_store_by_pieces_p.
2001         * config/mips/mips.c (mips_move_by_pieces_p): New function.
2002         (mips_store_by_pieces_p): Likewise.
2003
2004 2012-01-02  Jakub Jelinek  <jakub@redhat.com>
2005
2006         * passes.c (register_one_dump_file): Free full_name.
2007
2008         * reload1.c (reload): Don't allocate reg_max_ref_width here.
2009         (calculate_elim_costs_all_insns): Free offsets_at and
2010         offsets_known_at at the end and clear the pointers.
2011
2012 2012-01-02  Georg-Johann Lay  <avr@gjlay.de>
2013
2014         * config/avr/avr.opt (-mbranch-cost): Fix double definition of
2015         this option introduced in r180739.
2016
2017 2012-01-02  Georg-Johann Lay  <avr@gjlay.de>
2018
2019         PR target/51345
2020         * config.gcc (tm_file target=avr]): Add avr/avr-multilib.h
2021         (tmake_file target=avr): Add avr/t-multilib.
2022
2023         * config/avr/avr-c.c (avr_cpu_cpp_builtins): Use AVR_HAVE_8BIT_SP
2024         to built-in define __AVR_HAVE_8BIT_SP__, __AVR_HAVE_16BIT_SP__.
2025         * config/avr/genmultilib.awk: New file.
2026         * config/avr/t-multilib: New auto-generated file.
2027         * config/avr/multilib.h: New auto-generated file.
2028         * config/avr/t-avr (AVR_MCUS): New variable.
2029         (genopt.sh): Use it.
2030         (s-mlib): Depend on t-multilib.
2031         (t-multilib, multilib.h): New dependencies.
2032         (s-avr-mlib): New rule to build t-multilib, multilib.h from AVR_MCUS.
2033         (MULTILIB_OPTIONS): Remove.
2034         (MULTILIB_MATCHES): Remove.
2035         (MULTILIB_DIRNAMES): Remove.
2036         (MULTILIB_EXCEPTIONS): Remove:
2037         * config/avr/genopt.sh: Don't use hard coded file name;
2038         pass AVR_MCUS from t-avr instead.
2039
2040 2012-01-02  Georg-Johann Lay  <avr@gjlay.de>
2041
2042         * config/avr/avr.c (avr_out_ashrpsi3): Fix "case 31" to "case 23".
2043
2044 2012-01-02  Georg-Johann Lay  <avr@gjlay.de>
2045
2046         Implement light-weight DImode support.
2047         * config/avr/avr-dimode.md: New file.
2048         * config/avr/avr.md: Include it.
2049         (adjust_len): Add plus64, compare64.
2050         (HIDI): Remove code iterator.
2051         (code_stdname): New code attribute.
2052         (rotx, rotsmode): Remove DI.
2053         (rotl<mode>3, *rotw<mode>, *rotb<mode>): Use HISI instead of HIDI
2054         as code iterator.
2055         * config/avr/avr-protos.h (avr_have_dimode): New.
2056         (avr_out_plus64, avr_out_compare64): New.
2057         * config/avr/avr.c (avr_out_compare): Handle DImode.
2058         (avr_have_dimode): New variable definition and initialization.
2059         (avr_out_compare64, avr_out_plus64): New functions.
2060         (avr_out_plus_1): Use simplify_unary_operation to negate xval.
2061         (adjust_insn_length): Handle ADJUST_LEN_COMPARE64, ADJUST_LEN_PLUS64.
2062         (avr_compare_pattern): Skip DImode comparisons.
2063
2064 2012-01-02  Revital Eres  <revital.eres@linaro.org>
2065
2066         * ddg.c (def_has_ccmode_p): New function.
2067         (add_cross_iteration_register_deps,
2068         create_ddg_dep_from_intra_loop_link): Call it.
2069
2070 2012-01-02  Richard Guenther  <rguenther@suse.de>
2071
2072         PR other/51679
2073         * invoke.texi (fassociative-math): Remove spurious paranthesis.
2074
2075 2012-01-01  Jakub Jelinek  <jakub@redhat.com>
2076
2077         * gcc.c (process_command): Update copyright notice dates.
2078         * gcov.c (print_version): Likewise.
2079         * gcov-dump.c (print_version): Likewise.
2080         * mips-tfile.c (main): Likewise.
2081         * mips-tdump.c (main): Likewise.
2082
2083 2012-01-01  Ira Rosen  <irar@il.ibm.com>
2084
2085         PR tree-optimization/51704
2086         * tree-vect-slp.c (vect_detect_hybrid_slp_stmts): Check that
2087         a use is inside the basic block or loop before accessing its vect info.
2088
2089 2012-01-01  Jan Hubicka  <jhjh@suse.cz>
2090
2091         PR rtl-optimization/51069
2092         * cfgloopmanip.c (remove_path): Removing path making irreducible
2093         region unconditional makes BB part of the region.
2094
2095 2012-01-01  Jakub Jelinek  <jakub@redhat.com>
2096
2097         PR tree-optimization/51683
2098         * tree-ssa-propagate.c (substitute_and_fold): Don't optimize away
2099         calls with side-effects.
2100         * tree-ssa-ccp.c (ccp_fold_stmt): Likewise.
2101 \f
2102 Copyright (C) 2012 Free Software Foundation, Inc.
2103
2104 Copying and distribution of this file, with or without modification,
2105 are permitted in any medium without royalty provided the copyright
2106 notice and this notice are preserved.