gcc/ChangeLog

   1 2008-01-20  Richard Sandiford  <rsandifo@nildram.co.uk>
   2
   3         * global.c (find_reg): Only compute EH_RETURN_DATA_REGNO once per
   4         input.
   5
   6 2008-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
   7
   8         PR rtl-optimization/26854
   9         PR rtl-optimization/34400
  10         * ddg.c (create_ddg_dep_from_intra_loop_link): Do not use
  11         DF_RD->gen.
  12         * df.h (df_changeable_flags.DF_RD_NO_TRIM): New.
  13         (df_rd_bb_info.expanded_lr_out): New.
  14         * loop_invariant.c (find_defs): Added DF_RD_NO_TRIM flag.
  15         * loop_iv.c (iv_analysis_loop_init): Ditto.
  16         * df-problems.c (df_rd_free_bb_info, df_rd_alloc, df_rd_confluence_n,
  17         df_rd_bb_local_compute, df_rd_transfer_function, df_rd_free):
  18         Added code to allocate, initialize or free expanded_lr_out.
  19         (df_rd_bb_local_compute_process_def): Restructured to make
  20         more understandable.
  21         (df_rd_confluence_n): Add code to do nothing with fake edges and
  22         code to no apply invalidate_by_call sets if the sets are being trimmed.
  23         (df_lr_local_finalize): Renamed to df_lr_finalize.
  24         (df_live_local_finalize): Renamed to df_live_finalize.
  25
  26 2008-01-20  Richard Sandiford  <rsandifo@nildram.co.uk>
  27
  28         PR target/34831
  29         * config/mips/mips.md (div<mode>3): Use <recip_condition> when
  30         deciding whether to use reciprocal instructions.
  31
  32 2008-01-19  Uros Bizjak  <ubizjak@gmail.com>
  33
  34         * dwarf2out.c (dwarf2out_switch_text_section): Do not call
  35         dwarf2out_note_section_used if cold_text_section is NULL.
  36
  37 2008-01-19  Jakub Jelinek  <jakub@redhat.com>
  38
  39         PR gcov-profile/34610
  40         * tree-cfg.c (make_edges): Mark both outgoing edges from
  41         OMP_CONTINUE and from OMP_FOR as EDGE_ABNORMAL.
  42         * omp-low.c (expand_omp_for): Clear EDGE_ABNORMAL bits
  43         from OMP_FOR and OMP_CONTINUE outgoing edges.
  44
  45         * tree-profile.c (tree_profiling): Return early if
  46         cfun->after_tree_profile != 0.  Set cfun->after_tree_profile
  47         at the end.
  48         * omp-low.c (expand_omp_parallel): Copy after_tree_profile
  49         from cfun to child_cfun.
  50         * function.h (struct function): Add after_tree_profile bit.
  51
  52 2008-01-19 Anatoly Sokolov <aesok@post.ru>
  53
  54         * config/avr/avr.S (_exit): Disable interrupt.
  55
  56 2008-01-18  Kenneth Zadeck  <zadeck@naturalbridge.com>
  57             Steven Bosscher  <stevenb.gcc@gmail.com>
  58
  59         PR rtl-optimization/26854
  60         PR rtl-optimization/34400
  61         * df-problems.c (df_live_scratch): New scratch bitmap.
  62         (df_live_alloc): Allocate df_live_scratch when doing df_live.
  63         (df_live_reset): Clear the proper bitmaps.
  64         (df_live_bb_local_compute): Only process the artificial defs once
  65         since the order is not important.
  66         (df_live_init): Init the df_live sets only with the variables
  67         found live by df_lr.
  68         (df_live_transfer_function): Use the df_lr sets to prune the
  69         df_live sets as they are being computed.
  70         (df_live_free): Free df_live_scratch.
  71
  72 2008-01-18  Ian Lance Taylor  <iant@google.com>
  73
  74         * common.opt: Add fmerge-debug-strings.
  75         * dwarf2out.c (DEBUG_STR_SECTION_FLAGS): Test
  76         flag_merge_debug_strings rather than flag_merge_constants.
  77         * doc/invoke.texi (Option Summary): Mention
  78         -fmerge-debug-strings.
  79         (Debugging Options): Document -fmerge-debug-strings.
  80
  81 2008-01-18  Ian Lance Taylor  <iant@google.com>
  82
  83         PR c++/33407
  84         * tree.h (DECL_IS_OPERATOR_NEW): Define.
  85         (struct tree_function_decl): Add new field operator_new_flag.
  86         * tree-inline.c (expand_call_inline): When inlining a call to
  87         operator new, force the return value to go into a variable, and
  88         set DECL_NO_TBAA_P on that variable.
  89         * c-decl.c (merge_decls): Merge DECL_IS_OPERATOR_NEW flag.
  90
  91 2008-01-18  Uros Bizjak  <ubizjak@gmail.com>
  92
  93         PR debug/34484
  94         * dwarf2out.c (dwarf2out_switch_text_section): Do not guard with
  95         DWARF2_DEBUGGING_INFO.
  96         (dwarf2out_note_section_used): Ditto.  Add prototype.
  97         (have_multiple_function_sections, text_section_used,
  98         cold_text_section_used, *cold_text_sections): Move declarations
  99         before their uses.
 100
 101 2007-01-17  Bob Wilson  <bob.wilson@acm.org>
 102
 103         * config/xtensa/unwind-dw2-xtensa.h (_Unwind_FrameState): Remove pc
 104         field and add signal_ra.
 105         * config/xtensa/unwind-dw2-xtensa.c (uw_frame_state_for): Remove
 106         assignments to frame state pc.  Move end of stack check after
 107         MD_FALLBACK_FRAME_STATE_FOR.
 108         (uw_update_context_1): Use frame state signal_regs if set, instead
 109         of checking signal_frame flag.
 110         (uw_update_context): Use frame state signal_ra if set.
 111         * config/xtensa/linux.h (MD_UNWIND_SUPPORT): Define.
 112         * config/xtensa/linux-unwind.h: New file.
 113
 114 2007-01-18  Bernhard Fischer  <aldot@gcc.gnu.org>
 115
 116         * modulo-sched.c (get_sched_window): Fix comment typo.
 117
 118 2008-01-17  Andrew MacLeod  <amacleod@redhat.com>
 119
 120         PR tree-optimization/34648
 121         * tree-ssa-sccvn.c (visit_use): Expressions which can throw are varying.
 122
 123 2008-01-17  Anatoly Sokolov <aesok@post.ru>
 124
 125         * config/avr/avr.h (LINK_SPEC): Support -mrelax and -mpmem-wrap-around.
 126         * config/avr/avr.opt (mrelax, mpmem-wrap-around): Add.
 127
 128 2008-01-17  Seongbae Park  <seongbae.park@gmail.com>
 129
 130         PR rtl-optimization/34400
 131         * df-core.c (df_worklist_dataflow_overeager,
 132         df_worklist_dataflow_doublequeue): New functions.
 133         (df_worklist_dataflow): Two different worklist solvers.
 134         * params.def (PARAM_DF_DOUBLE_QUEUE_THRESHOLD_FACTOR):
 135         New param.
 136
 137 2008-01-16  Sebastian Pop  <sebastian.pop@amd.com>
 138
 139         PR testsuite/34821
 140         * doc/invoke.texi: Document the dependence on pthread for fopenmp
 141         and ftree-parallelize-loops.
 142
 143 2008-01-17  Mircea Namolaru  <namolaru@il.ibm.com>
 144
 145         PR rtl-optimization/34826
 146         * loop-doloop (doloop_modify): Update the REG_BR_PROB note.
 147
 148 2008-01-17  Andreas Krebbel  <krebbel1@de.ibm.com>
 149
 150         * global.c (find_reg): Mark the eh regs as used if necessary.
 151         * ra-conflict.c (global_conflicts): Set no_eh_reg flag.
 152         * ra.h (struct allocno): no_eh_reg field added.  Changed
 153         no_stack_reg type to bitfield.
 154
 155 2008-01-17  Eric Botcazou  <ebotcazou@adacore.com>
 156
 157         * tree.c (substitute_in_expr): Add missing 'break'.
 158
 159 2008-01-17  Richard Guenther  <rguenther@suse.de>
 160
 161         PR tree-optimization/34825
 162         * tree-ssa-math-opts.c (is_division_by): Do not recognize
 163         x / x as division to handle.
 164
 165 2008-01-16  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
 166
 167         * pa64-hpux.h (LIB_SPEC): Add "-lpthread" in shared links if "-mt" or
 168         "-pthread" is specified.
 169         * pa-hpux11.h (LIB_SPEC): Likewise.
 170
 171 2007-01-16  Janis Johnson  <janis187@us.ibm.com>
 172             Peter Bergner  <bergner@vnet.ibm.com>
 173
 174         PR rtl-optimization/33796
 175         * sparseset.c (sparseset_alloc): Use xcalloc rather than xmalloc.
 176
 177 2008-01-16  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
 178
 179         PR libgfortran/34699
 180         * pa-hpux.h (LINK_SPEC): Only search /lib/pa1.1 and /usr/lib/pa1.1 on
 181         static links.
 182         * pa-hpux10.h (LINK_SPEC): Likewise.
 183         * pa-hpux11.h (LINK_SPEC): Don't search /lib/pa1.1 and /usr/lib/pa1.1.
 184
 185 2008-01-16  Richard Guenther  <rguenther@suse.de>
 186
 187         PR middle-end/32628
 188         * fold-const.c (fold_convert_const_int_from_int): Do not
 189         set overflow if that occured only because of a sign extension
 190         change when converting from/to a sizetype with the same
 191         precision and signedness.
 192
 193 2008-01-16  Uros Bizjak  <ubizjak@gmail.com>
 194
 195         PR debug/34249
 196         * dwarf2out.c (output_call_frame_info): Move output of FDE initial
 197         location address to the correct place.  Update copyright year.
 198
 199 2008-01-16  Sebastian Pop  <sebastian.pop@amd.com>
 200
 201         * lambda-code.c (lambda_transform_legal_p): Handle the case of
 202         no dependences in the dependence_relations vector.
 203
 204 2008-01-16  Jan Hubicka  <jh@suse.cz>
 205
 206         PR rtl-optimization/31396
 207         * regstat.c (regstat_bb_compute_ri): Compute FREQ_CALLS_CROSSED.
 208         * cfg.c (dump_reg_info): Print it.
 209         * regs.h (struct reg_info_t): add freq_calls_crossed.
 210         (REG_FREQ_CALLS_CROSSED): New macro.
 211         * global.c (global_alloc): Compute freq_calls_crossed for allocno.
 212         (find_reg): Update call of CALLER_SAVE_PROFITABLE.
 213         * regmove.c (optimize_reg_copy_1, optimize_reg_copy_2, fixup_match_2,
 214         regmove_optimize): Update call crossed frequencies.
 215         * local-alloc.c (struct qty): Add freq_calls_crossed.
 216         (alloc_qty): Copute freq_calls_crossed.
 217         (update_equiv_regs, combine_regs): Update REG_FREQ_CALLS_CROSSED.
 218         (find_free_reg): Update call of CALLER_SAVE_PROFITABLE.
 219         * ra.h (struct allocno): Add freq_calls_crossed.
 220
 221 2008-01-16  Sebastian Pop  <sebastian.pop@amd.com>
 222
 223         * gcc.c (LINK_COMMAND_SPEC): Add includes and link options for
 224         libgomp when compiling with ftree-parallelize-loops.
 225         (GOMP_SELF_SPECS): Add -pthread for ftree-parallelize-loops.
 226
 227 2008-01-16  Richard Guenther  <rguenther@suse.de>
 228
 229         PR tree-optimization/34769
 230         * tree-data-ref.c (initialize_matrix_A): Revert fix for PR34458.
 231         * tree.c (int_cst_value): Instead make this function more
 232         permissive in what it accepts as valid input.  Document this
 233         function always sign-extends the value.
 234
 235 2008-01-16  Jakub Jelinek  <jakub@redhat.com>
 236             Richard Guenther  <rguenther@suse.de>
 237
 238         PR c/34668
 239         * gimplify.c (fold_indirect_ref_rhs): Rename to ...
 240         (gimple_fold_indirect_ref_rhs): ... this.
 241         (gimple_fold_indirect_ref): New function with foldings
 242         that preserve lvalueness.
 243         (gimplify_modify_expr_rhs): Call gimple_fold_indirect_ref_rhs.
 244         * tree-flow.h (gimple_fold_indirect_ref): Declare.
 245         * tree-inline.c (copy_body_r): Use gimple_fold_indirect_ref
 246         to fold an INDIRECT_REF, fall back to the old use of
 247         fold_indirect_ref_1.
 248
 249 2008-01-16  Sebastian Pop  <sebastian.pop@amd.com>
 250
 251         * tree-data-ref.c (subscript_dependence_tester_1): Call
 252         free_conflict_function.
 253         (compute_self_dependence): Same.
 254
 255 2008-01-16  Uros Bizjak  <ubizjak@gmail.com>
 256
 257         PR debug/34249
 258         * debug.h (dwarf2out_switch_text_section): Move declaration from ...
 259         * dwarf2out.c (dwarf2out_switch_text_section): ... here.  Make
 260         function global.
 261         * final.c (final_scan_insn) [NOTE_INSN_SWITCH_TEXT_SECTIONS]:
 262         Depending on dwarf2out_do_frame, call dwarf2out_switch_text_section
 263         for DWARF2_UNWIND_INFO targets.
 264
 265 2008-01-16  Richard Guenther  <rguenther@suse.de>
 266
 267         PR c/34768
 268         * c-typeck.c (common_pointer_type): Do not merge inconsistent
 269         type qualifiers for function types.
 270
 271 2008-01-15  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
 272
 273         * tree-parloops.c (gen_parallel_loop): Fix ommision of declaration for
 274         loop_iterator li from previous commit.
 275
 276 2008-01-15  Sebastian Pop  <sebastian.pop@amd.com>
 277
 278         * tree-parloops.c (gen_parallel_loop): Free loop bound estimations.
 279
 280 2008-01-12  Sebastian Pop  <sebastian.pop@amd.com>
 281
 282         * tree-parloops.c (loop_has_blocks_with_irreducible_flag): New.
 283         (parallelize_loops): Don't parallelize irreducible components.
 284
 285 2008-01-14  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
 286
 287         PR c++/24924
 288         * c-opts (c_common_post_options): Do not enable CPP
 289         flag_pedantic_errors by default.
 290
 291 2008-01-14  Eric Botcazou  <ebotcazou@adacore.com>
 292
 293         PR rtl-optimization/31944
 294         * cse.c (remove_pseudo_from_table): New function.
 295         (merge_equiv_classes): Use above function to remove pseudo-registers.
 296         (invalidate): Likewise.
 297
 298 2008-01-13  Richard Guenther  <rguenther@suse.de>
 299
 300         PR middle-end/34601
 301         * emit-rtl.c (set_reg_attrs_for_decl_rtl): Use DECL_MODE
 302         instead of TYPE_MODE to deal with calls from expand_one_error_var.
 303
 304 2008-01-13  Uros Bizjak  <ubizjak@gmail.com>
 305
 306         * gcse.c (cprop_jump): Call validate_unshare_change instead of
 307         validate_change to unshare the source of the PC set.
 308
 309 2008-01-12  Jan Hubicka  <jh@suse.cz>
 310
 311         PR middle-end/32135
 312         * tree-ssa-ccp.c (maybe_fold_offset_to_array_ref): Do not construct
 313         references above array bounds.  This might trigger bounds checks for
 314         pointers to arrays.
 315
 316 2008-01-12  Sebastian Pop  <sebastian.pop@amd.com>
 317
 318         * tree-ssa-ter.c (free_temp_expr_table): Free num_in_part and
 319         new_replaceable_dependencies.
 320
 321 2008-01-12  Doug Kwan  <dougkwan@google.com>
 322
 323         * c-decl.c: (grokdeclarator): Use OPT_Wignored_qualifiers
 324         instead of OPT_Wreturn_type in warning due to ignored return type
 325         qualifiers.
 326         * c-opt.c (c_common_post_option): Add -Wignored-qualifiers to
 327         options included in -Wextra.
 328         * c.opt: New option -Wignored_qualifiers.
 329         * doc/invoke.texi (Warning Options, -Wextra): Add new option
 330         -Wignore_qualifiers.
 331         (-Wignored-qualifiers): Document.
 332         (-Wreturn-type): Remove description of functionality now handled
 333         by -Wignored-qualifiers.
 334
 335 2008-01-12  Eric Botcazou  <ebotcazou@adacore.com>
 336
 337         PR ada/33788
 338         * fold-const.c (fold_unary) <VIEW_CONVERT_EXPR>: Fold an existing
 339         NOP_EXPR if it is between integral types with the same precision.
 340
 341 2008-01-12  Jan Hubicka  <jh@suse.cz>
 342
 343         PR other/28023
 344         * invoke.texi (max-inline-recursive-depth): Fix default value.
 345
 346 2008-01-12  Zdenek Dvorak  <ook@ucw.cz>
 347
 348         * tree-parloops.c (transform_to_exit_first_loop): Cast nit to the
 349         correct type.
 350
 351 2008-01-11  Bob Wilson  <bob.wilson@acm.org>
 352
 353         * config/xtensa/xtensa.c (override_options): Set flag_shlib.
 354
 355 2008-01-11  James E. Wilson  <wilson@specifix.com>
 356
 357         PR target/26015
 358         * config/vax/elf.h (FRAME_POINTER_CFA_OFFSET): Define.
 359
 360 2008-01-11  Anatoly Sokolov <aesok@post.ru>
 361
 362         * config/avr/avr.c (expand_prologue, expand_epilogue): Don't
 363         save/restore frame pointer register and don't use 'call-prologues'
 364         optimization in function with "OS_task" attribute.
 365
 366 2008-01-11  Eric Botcazou  <ebotcazou@adacore.com>
 367
 368         PR middle-end/31309
 369         * expr.c (copy_blkmode_from_reg): Use a mode suited to the size
 370         when copying to memory.
 371
 372 2008-01-11  Steven Bosscher  <stevenb.gcc@gmail.com>
 373
 374         PR rtl-optimization/30905
 375         * cfgcleanup.c: Include dce.h
 376         (crossjumps_occured): New global variable.
 377         (try_crossjump_bb): Exit loop after finding a fallthru edge.
 378         If something changed, set crossjumps_occured to true.
 379         (try_optimize_cfg): Clear crossjumps_occured at the beginning.
 380         Don't add/remove fake edges to exit here...
 381         (cleanup_cfg): ...but do it here, when crossjumping.
 382         Run a fast DCE when successful crossjumps occured in the latest
 383         iteration of try_optimize_cfg.
 384
 385 2008-01-11  Richard Guenther  <rguenther@suse.de>
 386
 387         * tree-ssa-sccvn.c (struct vn_binary_op_s): Move hashcode near opcode.
 388         (struct vn_unary_op_s): Likewise.
 389         (vn_reference_insert): Free old reference on hash collision.
 390
 391 2008-01-10  Raksit Ashok  <raksit@google.com>
 392
 393         PR rtl-optimization/27971
 394         * combine.c (find_split_point): Split PLUS expressions which are
 395         inside a MEM rtx, and whose first operand is complex.
 396
 397 2008-01-10  DJ Delorie  <dj@redhat.com>
 398
 399         * config/m32c/m32c.c (m32c_hard_regno_nregs_1): Renamed from...
 400         (m32c_hard_regno_nregs): ...this, which is now a wrapper.
 401         (m32c_hard_regno_ok): Call the underlying function.
 402
 403 2008-01-10  Richard Guenther  <rguenther@suse.de>
 404
 405         PR middle-end/34683
 406         * tree-cfg.c (tree_merge_blocks): Do not go through the
 407         full-blown folding and stmt updating path if we just deal
 408         with virtual operands.
 409         * tree-ssa-copy.c (may_propagate_copy): Do not short-cut
 410         test for abnormal SSA_NAMEs.
 411
 412 2008-01-10  Andreas Krebbel  <krebbel1@de.ibm.com>
 413
 414         PR middle-end/34641
 415         * reload.c (push_reload): Add assertions.  All constants from
 416         reg_equiv_constant should have been used for replacing the respective
 417         pseudo earlier.
 418         (find_reloads_address): Invoke find_reloads_address_part for
 419         constant taken from the reg_equiv_constant array.
 420
 421 2008-01-10  Steven Bosscher  <stevenb.gcc@gmail.com>
 422
 423         * tree-ssa-sccvn.h (struct vn_ssa_aux): Make the most accessed
 424         field (valnum) the first in the struct.  Replace bools with
 425         unit bit fields.
 426
 427 2008-01-10  Richard Guenther  <rguenther@suse.de>
 428
 429         PR tree-optimization/34651
 430         * tree-sra.c (sra_build_assignment): Sanitize.  Use the correct
 431         types and ordering for masking and converting.
 432
 433 2008-01-09  Sebastian Pop  <sebastian.pop@amd.com>
 434
 435         PR tree-optimization/34017
 436         * lambda-code.c (lambda_loopnest_to_gcc_loopnest): Generate code
 437         also for PHI_NODE expressions.
 438
 439 2008-01-09  Jan Hubicka  <jh@suse.cz>
 440
 441         PR tree-optimization/34708
 442         * tree-inline.c (estimate_num_insns_1): Compute cost of SWITCH_EXPR
 443         based on number of case labels.
 444         (init_inline_once): Remove switch_cost.
 445         * tree-inline.h (eni_weights_d): Remove switch_cost.
 446
 447 2008-01-09  Richard Guenther  <rguenther@suse.de>
 448         Andrew Pinski  <andrew_pinski@playstation.sony.com>
 449
 450         PR middle-end/30132
 451         * gimplify.c (gimplify_cond_expr): Do not create an addressable
 452         temporary if an rvalue is ok or an lvalue is not required.
 453
 454 2008-01-09  Richard Guenther  <rguenther@suse.de>
 455
 456         PR middle-end/34458
 457         * tree-data-ref.c (initialize_matrix_A): Use tree_low_cst,
 458         adjust return type.
 459
 460 2008-01-09  Richard Guenther  <rguenther@suse.de>
 461
 462         PR middle-end/34679
 463         * tree.c (host_integerp): Check for sizetype only if the
 464         type is an integer type.
 465
 466 2008-01-09  Steven Bosscher  <stevenb.gcc@gmail.com>
 467
 468         PR debug/26364
 469         * opts.c (decode_options): Disable inlining of functions called
 470         once if not in unit-at-a-time mode.
 471
 472 2008-01-09  Alexandre Oliva  <aoliva@redhat.com>
 473
 474         * Makefile.in (dse.o): Remove duplicate $(RECOG_H) dependency.
 475
 476 2008-01-08  Richard Guenther  <rguenther@suse.de>
 477
 478         PR middle-end/31863
 479         * tree-ssa-structalias.c (push_fields_onto_fieldstack): Bail
 480         out early if the result will be unused.
 481
 482 2008-01-08  Uros Bizjak  <ubizjak@gmail.com>
 483
 484         PR target/34709
 485         Revert:
 486
 487         2008-01-05  Uros Bizjak  <ubizjak@gmail.com>
 488         * config/i386/i386.c (ix86_builtin_reciprocal): Remove check
 489         for TARGET_RECIP.
 490
 491 2008-01-08  Jan Sjodin  <jan.sjodin@amd.com>
 492
 493         * config/i386/i386.c (k8_cost, amdfam10_cost): Branch costs
 494         for vectorization tuned.
 495
 496 2008-01-08  Richard Guenther  <rguenther@suse.de>
 497
 498         PR tree-optimization/34683
 499         * tree-ssa-operands.c (operand_build_cmp): Export.
 500         * tree-ssa-operands.h (operand_build_cmp): Declare.
 501         * tree-vn.c (vuses_compare): Remove.
 502         (sort_vuses): Use operand_build_cmp.
 503         (sort_vuses_heap): Likewise.
 504         * tree-ssa-sccvn.c (vuses_to_vec): Use VEC_reserve, not VEC_alloc
 505         to re-use old VEC if available.  Do not sort already sorted VUSEs.
 506         (vdefs_to_vec): Do not sort already sorted VDEFs.
 507
 508 2008-01-08  Jakub Jelinek  <jakub@redhat.com>
 509
 510         PR middle-end/34694
 511         * omp-low.c (copy_var_decl): Copy also DECL_SOURCE_LOCATION.
 512
 513 2008-01-08  Uros Bizjak  <ubizjak@gmail.com>
 514
 515         PR target/34702
 516         * doc/invoke.texi (i386 and x86-64 Options) [mrecip]: Document
 517         limitations of reciprocal sequences on x86 targets.
 518
 519 2008-01-08  Richard Guenther  <rguenther@suse.de>
 520
 521         PR tree-optimization/34683
 522         * tree-flow-inline.h (var_ann): Remove overzealous asserts.
 523
 524 2008-01-07  Jakub Jelinek  <jakub@redhat.com>
 525
 526         PR target/34622
 527         * config/darwin.c (darwin_mergeable_string_section): Don't use
 528         .cstring if int_size_in_bytes != TREE_STRING_LENGTH.
 529
 530 2008-01-07  Uros Bizjak  <ubizjak@gmail.com>
 531
 532         PR target/34682
 533         * config/i386/i386.md (neg<mode>2): Rename from negsf2, negdf2 and
 534         negxf2.  Macroize expander using X87MODEF mode iterator.  Change
 535         predicates of op0 and op1 to register_operand.
 536         (abs<mode>2): Rename from abssf2, absdf2 and negxf2.  Macroize
 537         expander using X87MODEF mode iterator.  Change predicates of
 538         op0 and op1 to register_operand.
 539         ("*absneg<mode>2_mixed", "*absneg<mode>2_sse"): Rename from
 540         corresponding patterns and macroize using MODEF macro.  Change
 541         predicates of op0 and op1 to register_operand and remove
 542         "m" constraint. Disparage "r" alternative with "!".
 543         ("*absneg<mode>2_i387"): Rename from corresponding patterns and
 544         macroize using X87MODEF macro.  Change predicates of op0 and op1
 545         to register_operand and remove "m" constraint.  Disparage "r"
 546         alternative with "!".
 547         (absneg splitter with memory operands): Remove.
 548         ("*neg<mode>2_1", "*abs<mode>2_1"): Rename from corresponding
 549         patterns and macroize using X87MODEF mode iterator.
 550         * config/i386/sse.md (negv4sf2, absv4sf2, neg2vdf2, absv2df2):
 551         Change predicate of op1 to register_operand.
 552         * config/i386/i386.c (ix86_expand_fp_absneg_operator): Remove support
 553         for memory operands.
 554
 555 2008-01-07  Nathan Froyd  <froydnj@codesourcery.com>
 556
 557         * config/rs6000/rs6000.h (ASM_CPU_SPEC): Add clause for mcpu=8548.
 558
 559 2008-01-07  Richard Guenther  <rguenther@suse.de>
 560
 561         * basic-block.h (struct edge_def): Pair dest_idx with goto_locus
 562         fields.
 563
 564 2008-01-07  Richard Guenther  <rguenther@suse.de>
 565
 566         PR tree-optimization/34683
 567         * tree-ssa-sccvn.c (vuses_to_vec): Pre-allocate the vector of
 568         VOPs of the needed size to save memory.  Use VEC_quick_push
 569         to save compile-time.
 570         (vdefs_to_vec): Likewise.
 571
 572 2008-01-07  Sa Liu  <saliu@de.ibm.com>
 573
 574         * config/spu/spu.md (divdf3): Genetate inline code for double
 575         division.  The implementation doesn't handle INF or NAN, therefore it
 576         only applies when -ffinite-math-only is given.
 577
 578 2008-01-06  Paolo Carlini  <pcarlini@suse.de>
 579
 580         PR libstdc++/34680
 581         * c-cppbuiltin.c (c_cpp_builtins): Define __GXX_RTTI, if appropriate.
 582         * doc/cpp.texi ([Common Predefined Macros]): Document.
 583
 584 2008-01-06  Uros Bizjak  <ubizjak@gmail.com>
 585
 586         * config/i386/i386.c (ix86_emit_swsqrtsf): Use negative constants in
 587         order to use commutative addition instead of subtraction.
 588
 589 2008-01-06  Andrew Pinski  <andrew_pinski@playstation.sony.com>
 590             Mircea Namolaru  <namolaru@il.ibm.com>
 591             Vladimir Yanovsky  <yanov@il.ibm.com>
 592             Revital Eres  <eres@il.ibm.com>
 593
 594         PR tree-optimization/34263
 595         * tree-outof-ssa.c (process_single_block_loop_latch,
 596         contains_tree_r): New functions.
 597         (analyze_edges_for_bb): Call process_single_block_loop_latch
 598         function to empty single-basic-block latch block if possible.
 599
 600 2008-01-05  Uros Bizjak  <ubizjak@gmail.com>
 601
 602         * config/i386/i386.c (ix86_builtin_reciprocal): Remove check
 603         for TARGET_RECIP.
 604         (ix86_emit_swsqrtsf): Do not filter out infinity for rsqrt expansion.
 605
 606 2008-01-05  Richard Sandiford  <rsandifo@nildram.co.uk>
 607
 608         * c-omp.c (check_omp_for_incr_expr): Handle CONVERT_EXPR.
 609
 610 2008-01-05  Richard Sandiford  <rsandifo@nildram.co.uk>
 611
 612         * config/mips/mips.c (mips_in_small_data_p): Reinstate size > 0 check.
 613
 614 2008-01-05  Jakub Jelinek  <jakub@redhat.com>
 615
 616         PR tree-optimization/34618
 617         * tree-outof-ssa.c (create_temp): Copy over DECL_GIMPLE_REG_P
 618         flag from T.
 619
 620 2008-01-05  Uros Bizjak  <ubizjak@gmail.com>
 621
 622         PR target/34673
 623         * config/i386/i386.c (ix86_emit_swsqrtsf): Swap input operands
 624         in the call to gen_rtx_NE.  Remove unneeded VECTOR_MODE_P check.
 625         Update copyright year.
 626
 627         * config/i386/i386.md (rsqrtsf2): Enable for TARGET_SSE_MATH.
 628         Update copyright year.
 629         * config/i386/sse.md (rsqrtv4sf2): Ditto. Unconditionally expand
 630         using NR fixup.
 631
 632 2008-01-05  Zhouyi Zhou  <zhouzhouyi@FreeBSD.org>
 633
 634         * tree-vrp.c (find_conditional_asserts): Remove redundant check that
 635         edge does not point to current bb before changing need_assert.
 636
 637 2008-01-04  Richard Guenther  <rguenther@suse.de>
 638
 639         PR middle-end/34029
 640         * tree-cfg.c (verify_expr): Do not look inside ADDR_EXPRs
 641         for verifying purposes if they are is_gimple_min_invariant.
 642
 643 2008-01-04  Aldy Hernandez  <aldyh@redhat.com>
 644
 645         PR tree-optimization/34448
 646         PR tree-optimization/34465
 647         * gimplify.c (gimplify_init_constructor): Add new parameter
 648         notify_temp_creation.  Use it.
 649         (gimplify_modify_expr_rhs): Take volatiles into account when
 650         optimizing constructors.
 651         Do not optimize constructors if gimplify_init_constructor will dump to
 652         memory.
 653         * gcc.dg/tree-ssa/pr32901.c: Tests const volatiles.
 654         * gcc.c-torture/compile/pr34448.c: New.
 655
 656 2008-01-04  Jakub Jelinek  <jakub@redhat.com>
 657
 658         PR gcov-profile/34609
 659         * tree-inline.c (declare_return_variable): Set TREE_ADDRESSABLE on
 660         return_slot if result is TREE_ADDRESSABLE.
 661
 662 2008-01-04  Richard Sandiford  <rsandifo@nildram.co.uk>
 663
 664         * config/mips/mips.md (sqrt_condition): Tweak comment.
 665         (recip_condition): Likewise.  Require TARGET_FLOAT64 for DFmode.
 666
 667 2008-01-03  Tom Tromey  <tromey@redhat.com>
 668
 669         PR c/34457
 670         * c-common.c (c_type_hash): Handle VLAs.
 671
 672 2008-01-03  Jan Hubicka  <jh@suse.cz>
 673
 674         PR tree-optimization/31081
 675         * tree-inline.c (remap_ssa_name): Initialize uninitialized SSA vars to
 676         0 when inlining and not inlining to first basic block.
 677         (remap_decl): When var is initialized to 0, don't set default_def.
 678         (expand_call_inline): Set entry_bb.
 679         * tree-inline.h (copy_body_data): Add entry_bb.
 680
 681 2008-01-03  Jakub Jelinek  <jakub@redhat.com>
 682
 683         PR c++/34619
 684         * cgraphunit.c (cgraph_build_static_cdtor): set_cfun back to NULL
 685         before returning.
 686
 687         PR tree-optimization/29484
 688         * tree-inline.c (inline_forbidden_p_2): New function.
 689         (inline_forbidden_p): Disallow inlining if some static var
 690         has an address of a local LABEL_DECL in its initializer.
 691         * doc/extend.texi (Labels as Values): Document &&foo behaviour
 692         vs. inlining.
 693
 694 2008-01-03  Sebastian Pop  <sebastian.pop@amd.com>
 695
 696         PR tree-optimization/34635
 697         * tree-data-ref.c (add_other_self_distances): Make sure that the
 698         evolution step is constant.
 699
 700 2008-01-03  Jakub Jelinek  <jakub@redhat.com>
 701
 702         PR middle-end/34608
 703         * omp-low.c (expand_omp_parallel): Purge dead EH edges in the child fn.
 704
 705 2008-01-02  Richard Sandiford  <rsandifo@nildram.co.uk>
 706
 707         * tree-sra.c (scalarize_init): Insert the generate_element_init
 708         statements after the generate_element_zero statements.
 709
 710 2008-01-02  Richard Guenther  <rguenther@suse.de>
 711
 712         PR middle-end/34093
 713         PR middle-end/31976
 714         * tree-ssa-operands.c (ssa_operand_alloc): Also allocate a buffer
 715         for very large number of operands instead of ICEing.
 716
 717 2008-01-02  Arthur Norman <acn1@cam.ac.uk>
 718
 719         PR target/34013
 720         * gcc/config/i386/i386.c (ix86_expand_prologue): Save red-zone
 721         while stack probing.
 722
 723 2008-01-01  Douglas Gregor  <doug.gregor@gmail.com>
 724
 725         * c-opts.c (sanitize_cpp_opts): Don't warn about "long long" when
 726         in C++0x mode.
 727
 728 2008-01-01  Volker Reichelt  <v.reichelt@netcologne.de>
 729
 730         PR libmudflap/26442
 731         * tree-mudflap.c (mx_register_decls): Guard warning by
 732         !DECL_ARTIFICIAL check.
 733
 734 2008-01-01  Jakub Jelinek  <jakub@redhat.com>
 735
 736         * config/i386/sse.md (sse5_pperm, sse5_pperm_pack_v2di_v4si,
 737         sse5_pperm_pack_v4si_v8hi, sse5_pperm_pack_v8hi_v16qi,
 738         sse5_perm<mode>): Fix constraints.