gcc/ChangeLog

   1 2008-01-22  Jakub Jelinek  <jakub@redhat.com>
   2
   3         PR c++/34917
   4         * tree.c (build_type_attribute_qual_variant): Call
   5         build_qualified_type if attributes are equal, but quals are not.
   6
   7 2008-01-22  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
   8
   9         PR 32102
  10         * doc/invoke.texi (-Wall): -Wall enables -Wstrict-overflow=1.
  11         * flags.h (warn_strict_aliasing): Remove.
  12         (warn_strict_overflow): Remove.
  13         * opts.c (warn_strict_aliasing): Remove.
  14         (warn_strict_overflow): Remove.
  15         * c-opts.c (c_common_handle_option): -Wall only sets
  16         -Wstrict-aliasing or -Wstrict-overflow if they are uninitialized.
  17         (c_common_post_options): Give default values to -Wstrict-aliasing
  18         and -Wstrict-overflow if they are uninitialized.
  19         * common.opt (Wstrict-aliasing): Specify Var and Init.
  20         (Wstrict-overflow): Likewise.
  21
  22 2008-01-22  Kenneth Zadeck <zadeck@naturalbridge.com>
  23
  24         PR rtl-optimization/26854
  25         PR rtl-optimization/34400
  26         PR rtl-optimization/34884
  27         * ddg.c (create_ddg_dep_from_intra_loop_link): Use
  28         DF_RD->gen.
  29         * df.h (df_changeable_flags.DF_RD_NO_TRIM): Deleted
  30         (df_rd_bb_info.expanded_lr_out): Deleted
  31         * loop_invariant.c (find_defs): Deleted DF_RD_NO_TRIM flag.
  32         * loop_iv.c (iv_analysis_loop_init): Ditto.  * df-problems.c
  33         (df_rd_free_bb_info, df_rd_alloc, df_rd_confluence_n,
  34         df_rd_bb_local_compute, df_rd_transfer_function, df_rd_free):
  35         Removed code to allocate, initialize or free expanded_lr_out.
  36         (df_rd_bb_local_compute_process_def): Restructured to make more
  37         understandable.
  38         (df_rd_confluence_n): Removed code to no apply invalidate_by_call
  39         sets if the sets are being trimmed.
  40
  41 2008-01-22  H.J. Lu  <hongjiu.lu@intel.com>
  42
  43         PR bootstrap/32287
  44         * configure.ac (ld_vers): Support GNU linker version xx.xx.*
  45         (as_vers): Likewise.
  46         * configure: Regenerated.
  47
  48 2008-01-22  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
  49
  50         PR middle-end/33092
  51         * tree-pass.h (pass_build_alias): New pass.
  52         * tree-ssa-alias.c (gate_build_alias): New.
  53         (pass_build_alias): New.
  54         * passes.c (init_optimization_passes): Add pass_build_alias after
  55         pass_create_structure_vars.
  56
  57 2008-01-22  Wolfgang Gellerich  <gellerich@de.ibm.com>
  58
  59         * config/s390/s390.h (S390_TDC_POSITIVE_NORMALIZED_NUMBER):
  60         Renamed to S390_TDC_POSITIVE_NORMALIZED_BFP_NUMBER.
  61         (S390_TDC_NEGATIVE_NORMALIZED_NUMBER): Renamed to
  62         S390_TDC_NEGATIVE_NORMALIZED_BFP_NUMBER.
  63         (S390_TDC_POSITIVE_DENORMALIZED_NUMBER): Renamed to
  64         S390_TDC_POSITIVE_DENORMALIZED_BFP_NUMBER.
  65         (S390_TDC_NEGATIVE_DENORMALIZED_NUMBER): Renamed to
  66         S390_TDC_NEGATIVE_DENORMALIZED_BFP_NUMBER.
  67         (S390_TDC_POSITIVE_NORMALIZED_BFP_NUMBER): New constant.
  68         (S390_TDC_NEGATIVE_NORMALIZED_BFP_NUMBER): New constant.
  69         (S390_TDC_POSITIVE_DENORMALIZED_BFP_NUMBER): New constant.
  70         (S390_TDC_NEGATIVE_DENORMALIZED_BFP_NUMBER): New constant.
  71         * config/s390/s390.md (FP_ALL): New mode iterator.
  72         (_d): New mode attribute.
  73         ("*signbit<mode>2>"): Changed mode of first operand.
  74         ("isinf<mode>2"): Changed mode of first operand.
  75         ("*TDC_insn"): Adaptation for DFP modes.
  76
  77 2008-01-22  Ben Elliston  <bje@au.ibm.com>
  78
  79         * tree.c (check_qualified_type): Improve function description.
  80
  81 2008-01-21  Jason Merrill  <jason@redhat.com>
  82
  83         PR c++/34196
  84         * tree.h (TRY_CATCH_IS_CLEANUP): New macro.
  85         * tree-eh.c (honor_protect_cleanup_actions): Strip TRY_CATCH_EXPR
  86         if it is set.
  87
  88 2008-01-21  DJ Delorie  <dj@redhat.com>
  89
  90         * doc/tm.texi (HARD_REGNO_NREGS): Note that this macro must not
  91         return zero.
  92
  93 2008-01-21  Richard Guenther  <rguenther@suse.de>
  94
  95         PR middle-end/34856
  96         * tree-cfg.c (verify_expr): Allow all invariant expressions
  97         instead of just constant class ones as reference argument.
  98         * tree-ssa-loop-im.c (for_each_index): Handle CONSTRUCTOR
  99         like any other constant.
 100         * tree-ssa-sccvn.c (copy_reference_ops_from_ref): Likewise.
 101
 102 2008-01-21  H.J. Lu  <hongjiu.lu@intel.com>
 103
 104         * regmove.c (fixup_match_1): Update call crossed frequencies.
 105
 106 2008-01-21  Richard Guenther  <rguenther@suse.de>
 107
 108         PR c/34885
 109         * tree-inline.c (setup_one_parameter): Deal with mismatched
 110         types using a VIEW_CONVERT_EXPR.
 111
 112 2008-01-21  Alon Dayan  <alond@il.ibm.com>
 113             Olga Golovanevsky  <olga@il.ibm.com>
 114
 115         PR tree-optimization/34701
 116         * ipa-struct-reorg.c (gen_size): Fix the malloc parameter calculation
 117         when the structure size is not a power of 2.
 118
 119 2008-01-20  Kenneth Zadeck <zadeck@naturalbridge.com>
 120
 121         * doc/install.texi: Add doc for --enable-checking=df.
 122
 123 2008-01-20  Kaz Kojima  <kkojima@gcc.gnu.org>
 124
 125         PR rtl-optimization/34808
 126         * emit-rtl.c (try_split): Handle REG_RETVAL notes.
 127
 128 2008-01-20  Richard Sandiford  <rsandifo@nildram.co.uk>
 129
 130         * global.c (find_reg): Only compute EH_RETURN_DATA_REGNO once per
 131         input.
 132
 133 2008-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
 134
 135         PR rtl-optimization/26854
 136         PR rtl-optimization/34400
 137         * ddg.c (create_ddg_dep_from_intra_loop_link): Do not use
 138         DF_RD->gen.
 139         * df.h (df_changeable_flags.DF_RD_NO_TRIM): New.
 140         (df_rd_bb_info.expanded_lr_out): New.
 141         * loop_invariant.c (find_defs): Added DF_RD_NO_TRIM flag.
 142         * loop_iv.c (iv_analysis_loop_init): Ditto.
 143         * df-problems.c (df_rd_free_bb_info, df_rd_alloc, df_rd_confluence_n,
 144         df_rd_bb_local_compute, df_rd_transfer_function, df_rd_free):
 145         Added code to allocate, initialize or free expanded_lr_out.
 146         (df_rd_bb_local_compute_process_def): Restructured to make
 147         more understandable.
 148         (df_rd_confluence_n): Add code to do nothing with fake edges and
 149         code to no apply invalidate_by_call sets if the sets are being trimmed.
 150         (df_lr_local_finalize): Renamed to df_lr_finalize.
 151         (df_live_local_finalize): Renamed to df_live_finalize.
 152
 153 2008-01-20  Richard Sandiford  <rsandifo@nildram.co.uk>
 154
 155         PR target/34831
 156         * config/mips/mips.md (div<mode>3): Use <recip_condition> when
 157         deciding whether to use reciprocal instructions.
 158
 159 2008-01-19  Uros Bizjak  <ubizjak@gmail.com>
 160
 161         * dwarf2out.c (dwarf2out_switch_text_section): Do not call
 162         dwarf2out_note_section_used if cold_text_section is NULL.
 163
 164 2008-01-19  Jakub Jelinek  <jakub@redhat.com>
 165
 166         PR gcov-profile/34610
 167         * tree-cfg.c (make_edges): Mark both outgoing edges from
 168         OMP_CONTINUE and from OMP_FOR as EDGE_ABNORMAL.
 169         * omp-low.c (expand_omp_for): Clear EDGE_ABNORMAL bits
 170         from OMP_FOR and OMP_CONTINUE outgoing edges.
 171
 172         * tree-profile.c (tree_profiling): Return early if
 173         cfun->after_tree_profile != 0.  Set cfun->after_tree_profile
 174         at the end.
 175         * omp-low.c (expand_omp_parallel): Copy after_tree_profile
 176         from cfun to child_cfun.
 177         * function.h (struct function): Add after_tree_profile bit.
 178
 179 2008-01-19 Anatoly Sokolov <aesok@post.ru>
 180
 181         * config/avr/avr.S (_exit): Disable interrupt.
 182
 183 2008-01-18  Kenneth Zadeck  <zadeck@naturalbridge.com>
 184             Steven Bosscher  <stevenb.gcc@gmail.com>
 185
 186         PR rtl-optimization/26854
 187         PR rtl-optimization/34400
 188         * df-problems.c (df_live_scratch): New scratch bitmap.
 189         (df_live_alloc): Allocate df_live_scratch when doing df_live.
 190         (df_live_reset): Clear the proper bitmaps.
 191         (df_live_bb_local_compute): Only process the artificial defs once
 192         since the order is not important.
 193         (df_live_init): Init the df_live sets only with the variables
 194         found live by df_lr.
 195         (df_live_transfer_function): Use the df_lr sets to prune the
 196         df_live sets as they are being computed.
 197         (df_live_free): Free df_live_scratch.
 198
 199 2008-01-18  Ian Lance Taylor  <iant@google.com>
 200
 201         * common.opt: Add fmerge-debug-strings.
 202         * dwarf2out.c (DEBUG_STR_SECTION_FLAGS): Test
 203         flag_merge_debug_strings rather than flag_merge_constants.
 204         * doc/invoke.texi (Option Summary): Mention
 205         -fmerge-debug-strings.
 206         (Debugging Options): Document -fmerge-debug-strings.
 207
 208 2008-01-18  Ian Lance Taylor  <iant@google.com>
 209
 210         PR c++/33407
 211         * tree.h (DECL_IS_OPERATOR_NEW): Define.
 212         (struct tree_function_decl): Add new field operator_new_flag.
 213         * tree-inline.c (expand_call_inline): When inlining a call to
 214         operator new, force the return value to go into a variable, and
 215         set DECL_NO_TBAA_P on that variable.
 216         * c-decl.c (merge_decls): Merge DECL_IS_OPERATOR_NEW flag.
 217
 218 2008-01-18  Uros Bizjak  <ubizjak@gmail.com>
 219
 220         PR debug/34484
 221         * dwarf2out.c (dwarf2out_switch_text_section): Do not guard with
 222         DWARF2_DEBUGGING_INFO.
 223         (dwarf2out_note_section_used): Ditto.  Add prototype.
 224         (have_multiple_function_sections, text_section_used,
 225         cold_text_section_used, *cold_text_sections): Move declarations
 226         before their uses.
 227
 228 2007-01-17  Bob Wilson  <bob.wilson@acm.org>
 229
 230         * config/xtensa/unwind-dw2-xtensa.h (_Unwind_FrameState): Remove pc
 231         field and add signal_ra.
 232         * config/xtensa/unwind-dw2-xtensa.c (uw_frame_state_for): Remove
 233         assignments to frame state pc.  Move end of stack check after
 234         MD_FALLBACK_FRAME_STATE_FOR.
 235         (uw_update_context_1): Use frame state signal_regs if set, instead
 236         of checking signal_frame flag.
 237         (uw_update_context): Use frame state signal_ra if set.
 238         * config/xtensa/linux.h (MD_UNWIND_SUPPORT): Define.
 239         * config/xtensa/linux-unwind.h: New file.
 240
 241 2007-01-18  Bernhard Fischer  <aldot@gcc.gnu.org>
 242
 243         * modulo-sched.c (get_sched_window): Fix comment typo.
 244
 245 2008-01-17  Andrew MacLeod  <amacleod@redhat.com>
 246
 247         PR tree-optimization/34648
 248         * tree-ssa-sccvn.c (visit_use): Expressions which can throw are varying.
 249
 250 2008-01-17  Anatoly Sokolov <aesok@post.ru>
 251
 252         * config/avr/avr.h (LINK_SPEC): Support -mrelax and -mpmem-wrap-around.
 253         * config/avr/avr.opt (mrelax, mpmem-wrap-around): Add.
 254
 255 2008-01-17  Seongbae Park  <seongbae.park@gmail.com>
 256
 257         PR rtl-optimization/34400
 258         * df-core.c (df_worklist_dataflow_overeager,
 259         df_worklist_dataflow_doublequeue): New functions.
 260         (df_worklist_dataflow): Two different worklist solvers.
 261         * params.def (PARAM_DF_DOUBLE_QUEUE_THRESHOLD_FACTOR):
 262         New param.
 263
 264 2008-01-16  Sebastian Pop  <sebastian.pop@amd.com>
 265
 266         PR testsuite/34821
 267         * doc/invoke.texi: Document the dependence on pthread for fopenmp
 268         and ftree-parallelize-loops.
 269
 270 2008-01-17  Mircea Namolaru  <namolaru@il.ibm.com>
 271
 272         PR rtl-optimization/34826
 273         * loop-doloop (doloop_modify): Update the REG_BR_PROB note.
 274
 275 2008-01-17  Andreas Krebbel  <krebbel1@de.ibm.com>
 276
 277         * global.c (find_reg): Mark the eh regs as used if necessary.
 278         * ra-conflict.c (global_conflicts): Set no_eh_reg flag.
 279         * ra.h (struct allocno): no_eh_reg field added.  Changed
 280         no_stack_reg type to bitfield.
 281
 282 2008-01-17  Eric Botcazou  <ebotcazou@adacore.com>
 283
 284         * tree.c (substitute_in_expr): Add missing 'break'.
 285
 286 2008-01-17  Richard Guenther  <rguenther@suse.de>
 287
 288         PR tree-optimization/34825
 289         * tree-ssa-math-opts.c (is_division_by): Do not recognize
 290         x / x as division to handle.
 291
 292 2008-01-16  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
 293
 294         * pa64-hpux.h (LIB_SPEC): Add "-lpthread" in shared links if "-mt" or
 295         "-pthread" is specified.
 296         * pa-hpux11.h (LIB_SPEC): Likewise.
 297
 298 2007-01-16  Janis Johnson  <janis187@us.ibm.com>
 299             Peter Bergner  <bergner@vnet.ibm.com>
 300
 301         PR rtl-optimization/33796
 302         * sparseset.c (sparseset_alloc): Use xcalloc rather than xmalloc.
 303
 304 2008-01-16  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
 305
 306         PR libgfortran/34699
 307         * pa-hpux.h (LINK_SPEC): Only search /lib/pa1.1 and /usr/lib/pa1.1 on
 308         static links.
 309         * pa-hpux10.h (LINK_SPEC): Likewise.
 310         * pa-hpux11.h (LINK_SPEC): Don't search /lib/pa1.1 and /usr/lib/pa1.1.
 311
 312 2008-01-16  Richard Guenther  <rguenther@suse.de>
 313
 314         PR middle-end/32628
 315         * fold-const.c (fold_convert_const_int_from_int): Do not
 316         set overflow if that occured only because of a sign extension
 317         change when converting from/to a sizetype with the same
 318         precision and signedness.
 319
 320 2008-01-16  Uros Bizjak  <ubizjak@gmail.com>
 321
 322         PR debug/34249
 323         * dwarf2out.c (output_call_frame_info): Move output of FDE initial
 324         location address to the correct place.  Update copyright year.
 325
 326 2008-01-16  Sebastian Pop  <sebastian.pop@amd.com>
 327
 328         * lambda-code.c (lambda_transform_legal_p): Handle the case of
 329         no dependences in the dependence_relations vector.
 330
 331 2008-01-16  Jan Hubicka  <jh@suse.cz>
 332
 333         PR rtl-optimization/31396
 334         * regstat.c (regstat_bb_compute_ri): Compute FREQ_CALLS_CROSSED.
 335         * cfg.c (dump_reg_info): Print it.
 336         * regs.h (struct reg_info_t): add freq_calls_crossed.
 337         (REG_FREQ_CALLS_CROSSED): New macro.
 338         * global.c (global_alloc): Compute freq_calls_crossed for allocno.
 339         (find_reg): Update call of CALLER_SAVE_PROFITABLE.
 340         * regmove.c (optimize_reg_copy_1, optimize_reg_copy_2, fixup_match_2,
 341         regmove_optimize): Update call crossed frequencies.
 342         * local-alloc.c (struct qty): Add freq_calls_crossed.
 343         (alloc_qty): Copute freq_calls_crossed.
 344         (update_equiv_regs, combine_regs): Update REG_FREQ_CALLS_CROSSED.
 345         (find_free_reg): Update call of CALLER_SAVE_PROFITABLE.
 346         * ra.h (struct allocno): Add freq_calls_crossed.
 347
 348 2008-01-16  Sebastian Pop  <sebastian.pop@amd.com>
 349
 350         * gcc.c (LINK_COMMAND_SPEC): Add includes and link options for
 351         libgomp when compiling with ftree-parallelize-loops.
 352         (GOMP_SELF_SPECS): Add -pthread for ftree-parallelize-loops.
 353
 354 2008-01-16  Richard Guenther  <rguenther@suse.de>
 355
 356         PR tree-optimization/34769
 357         * tree-data-ref.c (initialize_matrix_A): Revert fix for PR34458.
 358         * tree.c (int_cst_value): Instead make this function more
 359         permissive in what it accepts as valid input.  Document this
 360         function always sign-extends the value.
 361
 362 2008-01-16  Jakub Jelinek  <jakub@redhat.com>
 363             Richard Guenther  <rguenther@suse.de>
 364
 365         PR c/34668
 366         * gimplify.c (fold_indirect_ref_rhs): Rename to ...
 367         (gimple_fold_indirect_ref_rhs): ... this.
 368         (gimple_fold_indirect_ref): New function with foldings
 369         that preserve lvalueness.
 370         (gimplify_modify_expr_rhs): Call gimple_fold_indirect_ref_rhs.
 371         * tree-flow.h (gimple_fold_indirect_ref): Declare.
 372         * tree-inline.c (copy_body_r): Use gimple_fold_indirect_ref
 373         to fold an INDIRECT_REF, fall back to the old use of
 374         fold_indirect_ref_1.
 375
 376 2008-01-16  Sebastian Pop  <sebastian.pop@amd.com>
 377
 378         * tree-data-ref.c (subscript_dependence_tester_1): Call
 379         free_conflict_function.
 380         (compute_self_dependence): Same.
 381
 382 2008-01-16  Uros Bizjak  <ubizjak@gmail.com>
 383
 384         PR debug/34249
 385         * debug.h (dwarf2out_switch_text_section): Move declaration from ...
 386         * dwarf2out.c (dwarf2out_switch_text_section): ... here.  Make
 387         function global.
 388         * final.c (final_scan_insn) [NOTE_INSN_SWITCH_TEXT_SECTIONS]:
 389         Depending on dwarf2out_do_frame, call dwarf2out_switch_text_section
 390         for DWARF2_UNWIND_INFO targets.
 391
 392 2008-01-16  Richard Guenther  <rguenther@suse.de>
 393
 394         PR c/34768
 395         * c-typeck.c (common_pointer_type): Do not merge inconsistent
 396         type qualifiers for function types.
 397
 398 2008-01-15  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
 399
 400         * tree-parloops.c (gen_parallel_loop): Fix ommision of declaration for
 401         loop_iterator li from previous commit.
 402
 403 2008-01-15  Sebastian Pop  <sebastian.pop@amd.com>
 404
 405         * tree-parloops.c (gen_parallel_loop): Free loop bound estimations.
 406
 407 2008-01-12  Sebastian Pop  <sebastian.pop@amd.com>
 408
 409         * tree-parloops.c (loop_has_blocks_with_irreducible_flag): New.
 410         (parallelize_loops): Don't parallelize irreducible components.
 411
 412 2008-01-14  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
 413
 414         PR c++/24924
 415         * c-opts (c_common_post_options): Do not enable CPP
 416         flag_pedantic_errors by default.
 417
 418 2008-01-14  Eric Botcazou  <ebotcazou@adacore.com>
 419
 420         PR rtl-optimization/31944
 421         * cse.c (remove_pseudo_from_table): New function.
 422         (merge_equiv_classes): Use above function to remove pseudo-registers.
 423         (invalidate): Likewise.
 424
 425 2008-01-13  Richard Guenther  <rguenther@suse.de>
 426
 427         PR middle-end/34601
 428         * emit-rtl.c (set_reg_attrs_for_decl_rtl): Use DECL_MODE
 429         instead of TYPE_MODE to deal with calls from expand_one_error_var.
 430
 431 2008-01-13  Uros Bizjak  <ubizjak@gmail.com>
 432
 433         * gcse.c (cprop_jump): Call validate_unshare_change instead of
 434         validate_change to unshare the source of the PC set.
 435
 436 2008-01-12  Jan Hubicka  <jh@suse.cz>
 437
 438         PR middle-end/32135
 439         * tree-ssa-ccp.c (maybe_fold_offset_to_array_ref): Do not construct
 440         references above array bounds.  This might trigger bounds checks for
 441         pointers to arrays.
 442
 443 2008-01-12  Sebastian Pop  <sebastian.pop@amd.com>
 444
 445         * tree-ssa-ter.c (free_temp_expr_table): Free num_in_part and
 446         new_replaceable_dependencies.
 447
 448 2008-01-12  Doug Kwan  <dougkwan@google.com>
 449
 450         * c-decl.c: (grokdeclarator): Use OPT_Wignored_qualifiers
 451         instead of OPT_Wreturn_type in warning due to ignored return type
 452         qualifiers.
 453         * c-opt.c (c_common_post_option): Add -Wignored-qualifiers to
 454         options included in -Wextra.
 455         * c.opt: New option -Wignored_qualifiers.
 456         * doc/invoke.texi (Warning Options, -Wextra): Add new option
 457         -Wignore_qualifiers.
 458         (-Wignored-qualifiers): Document.
 459         (-Wreturn-type): Remove description of functionality now handled
 460         by -Wignored-qualifiers.
 461
 462 2008-01-12  Eric Botcazou  <ebotcazou@adacore.com>
 463
 464         PR ada/33788
 465         * fold-const.c (fold_unary) <VIEW_CONVERT_EXPR>: Fold an existing
 466         NOP_EXPR if it is between integral types with the same precision.
 467
 468 2008-01-12  Jan Hubicka  <jh@suse.cz>
 469
 470         PR other/28023
 471         * invoke.texi (max-inline-recursive-depth): Fix default value.
 472
 473 2008-01-12  Zdenek Dvorak  <ook@ucw.cz>
 474
 475         * tree-parloops.c (transform_to_exit_first_loop): Cast nit to the
 476         correct type.
 477
 478 2008-01-11  Bob Wilson  <bob.wilson@acm.org>
 479
 480         * config/xtensa/xtensa.c (override_options): Set flag_shlib.
 481
 482 2008-01-11  James E. Wilson  <wilson@specifix.com>
 483
 484         PR target/26015
 485         * config/vax/elf.h (FRAME_POINTER_CFA_OFFSET): Define.
 486
 487 2008-01-11  Anatoly Sokolov <aesok@post.ru>
 488
 489         * config/avr/avr.c (expand_prologue, expand_epilogue): Don't
 490         save/restore frame pointer register and don't use 'call-prologues'
 491         optimization in function with "OS_task" attribute.
 492
 493 2008-01-11  Eric Botcazou  <ebotcazou@adacore.com>
 494
 495         PR middle-end/31309
 496         * expr.c (copy_blkmode_from_reg): Use a mode suited to the size
 497         when copying to memory.
 498
 499 2008-01-11  Steven Bosscher  <stevenb.gcc@gmail.com>
 500
 501         PR rtl-optimization/30905
 502         * cfgcleanup.c: Include dce.h
 503         (crossjumps_occured): New global variable.
 504         (try_crossjump_bb): Exit loop after finding a fallthru edge.
 505         If something changed, set crossjumps_occured to true.
 506         (try_optimize_cfg): Clear crossjumps_occured at the beginning.
 507         Don't add/remove fake edges to exit here...
 508         (cleanup_cfg): ...but do it here, when crossjumping.
 509         Run a fast DCE when successful crossjumps occured in the latest
 510         iteration of try_optimize_cfg.
 511
 512 2008-01-11  Richard Guenther  <rguenther@suse.de>
 513
 514         * tree-ssa-sccvn.c (struct vn_binary_op_s): Move hashcode near opcode.
 515         (struct vn_unary_op_s): Likewise.
 516         (vn_reference_insert): Free old reference on hash collision.
 517
 518 2008-01-10  Raksit Ashok  <raksit@google.com>
 519
 520         PR rtl-optimization/27971
 521         * combine.c (find_split_point): Split PLUS expressions which are
 522         inside a MEM rtx, and whose first operand is complex.
 523
 524 2008-01-10  DJ Delorie  <dj@redhat.com>
 525
 526         * config/m32c/m32c.c (m32c_hard_regno_nregs_1): Renamed from...
 527         (m32c_hard_regno_nregs): ...this, which is now a wrapper.
 528         (m32c_hard_regno_ok): Call the underlying function.
 529
 530 2008-01-10  Richard Guenther  <rguenther@suse.de>
 531
 532         PR middle-end/34683
 533         * tree-cfg.c (tree_merge_blocks): Do not go through the
 534         full-blown folding and stmt updating path if we just deal
 535         with virtual operands.
 536         * tree-ssa-copy.c (may_propagate_copy): Do not short-cut
 537         test for abnormal SSA_NAMEs.
 538
 539 2008-01-10  Andreas Krebbel  <krebbel1@de.ibm.com>
 540
 541         PR middle-end/34641
 542         * reload.c (push_reload): Add assertions.  All constants from
 543         reg_equiv_constant should have been used for replacing the respective
 544         pseudo earlier.
 545         (find_reloads_address): Invoke find_reloads_address_part for
 546         constant taken from the reg_equiv_constant array.
 547
 548 2008-01-10  Steven Bosscher  <stevenb.gcc@gmail.com>
 549
 550         * tree-ssa-sccvn.h (struct vn_ssa_aux): Make the most accessed
 551         field (valnum) the first in the struct.  Replace bools with
 552         unit bit fields.
 553
 554 2008-01-10  Richard Guenther  <rguenther@suse.de>
 555
 556         PR tree-optimization/34651
 557         * tree-sra.c (sra_build_assignment): Sanitize.  Use the correct
 558         types and ordering for masking and converting.
 559
 560 2008-01-09  Sebastian Pop  <sebastian.pop@amd.com>
 561
 562         PR tree-optimization/34017
 563         * lambda-code.c (lambda_loopnest_to_gcc_loopnest): Generate code
 564         also for PHI_NODE expressions.
 565
 566 2008-01-09  Jan Hubicka  <jh@suse.cz>
 567
 568         PR tree-optimization/34708
 569         * tree-inline.c (estimate_num_insns_1): Compute cost of SWITCH_EXPR
 570         based on number of case labels.
 571         (init_inline_once): Remove switch_cost.
 572         * tree-inline.h (eni_weights_d): Remove switch_cost.
 573
 574 2008-01-09  Richard Guenther  <rguenther@suse.de>
 575         Andrew Pinski  <andrew_pinski@playstation.sony.com>
 576
 577         PR middle-end/30132
 578         * gimplify.c (gimplify_cond_expr): Do not create an addressable
 579         temporary if an rvalue is ok or an lvalue is not required.
 580
 581 2008-01-09  Richard Guenther  <rguenther@suse.de>
 582
 583         PR middle-end/34458
 584         * tree-data-ref.c (initialize_matrix_A): Use tree_low_cst,
 585         adjust return type.
 586
 587 2008-01-09  Richard Guenther  <rguenther@suse.de>
 588
 589         PR middle-end/34679
 590         * tree.c (host_integerp): Check for sizetype only if the
 591         type is an integer type.
 592
 593 2008-01-09  Steven Bosscher  <stevenb.gcc@gmail.com>
 594
 595         PR debug/26364
 596         * opts.c (decode_options): Disable inlining of functions called
 597         once if not in unit-at-a-time mode.
 598
 599 2008-01-09  Alexandre Oliva  <aoliva@redhat.com>
 600
 601         * Makefile.in (dse.o): Remove duplicate $(RECOG_H) dependency.
 602
 603 2008-01-08  Richard Guenther  <rguenther@suse.de>
 604
 605         PR middle-end/31863
 606         * tree-ssa-structalias.c (push_fields_onto_fieldstack): Bail
 607         out early if the result will be unused.
 608
 609 2008-01-08  Uros Bizjak  <ubizjak@gmail.com>
 610
 611         PR target/34709
 612         Revert:
 613
 614         2008-01-05  Uros Bizjak  <ubizjak@gmail.com>
 615         * config/i386/i386.c (ix86_builtin_reciprocal): Remove check
 616         for TARGET_RECIP.
 617
 618 2008-01-08  Jan Sjodin  <jan.sjodin@amd.com>
 619
 620         * config/i386/i386.c (k8_cost, amdfam10_cost): Branch costs
 621         for vectorization tuned.
 622
 623 2008-01-08  Richard Guenther  <rguenther@suse.de>
 624
 625         PR tree-optimization/34683
 626         * tree-ssa-operands.c (operand_build_cmp): Export.
 627         * tree-ssa-operands.h (operand_build_cmp): Declare.
 628         * tree-vn.c (vuses_compare): Remove.
 629         (sort_vuses): Use operand_build_cmp.
 630         (sort_vuses_heap): Likewise.
 631         * tree-ssa-sccvn.c (vuses_to_vec): Use VEC_reserve, not VEC_alloc
 632         to re-use old VEC if available.  Do not sort already sorted VUSEs.
 633         (vdefs_to_vec): Do not sort already sorted VDEFs.
 634
 635 2008-01-08  Jakub Jelinek  <jakub@redhat.com>
 636
 637         PR middle-end/34694
 638         * omp-low.c (copy_var_decl): Copy also DECL_SOURCE_LOCATION.
 639
 640 2008-01-08  Uros Bizjak  <ubizjak@gmail.com>
 641
 642         PR target/34702
 643         * doc/invoke.texi (i386 and x86-64 Options) [mrecip]: Document
 644         limitations of reciprocal sequences on x86 targets.
 645
 646 2008-01-08  Richard Guenther  <rguenther@suse.de>
 647
 648         PR tree-optimization/34683
 649         * tree-flow-inline.h (var_ann): Remove overzealous asserts.
 650
 651 2008-01-07  Jakub Jelinek  <jakub@redhat.com>
 652
 653         PR target/34622
 654         * config/darwin.c (darwin_mergeable_string_section): Don't use
 655         .cstring if int_size_in_bytes != TREE_STRING_LENGTH.
 656
 657 2008-01-07  Uros Bizjak  <ubizjak@gmail.com>
 658
 659         PR target/34682
 660         * config/i386/i386.md (neg<mode>2): Rename from negsf2, negdf2 and
 661         negxf2.  Macroize expander using X87MODEF mode iterator.  Change
 662         predicates of op0 and op1 to register_operand.
 663         (abs<mode>2): Rename from abssf2, absdf2 and negxf2.  Macroize
 664         expander using X87MODEF mode iterator.  Change predicates of
 665         op0 and op1 to register_operand.
 666         ("*absneg<mode>2_mixed", "*absneg<mode>2_sse"): Rename from
 667         corresponding patterns and macroize using MODEF macro.  Change
 668         predicates of op0 and op1 to register_operand and remove
 669         "m" constraint. Disparage "r" alternative with "!".
 670         ("*absneg<mode>2_i387"): Rename from corresponding patterns and
 671         macroize using X87MODEF macro.  Change predicates of op0 and op1
 672         to register_operand and remove "m" constraint.  Disparage "r"
 673         alternative with "!".
 674         (absneg splitter with memory operands): Remove.
 675         ("*neg<mode>2_1", "*abs<mode>2_1"): Rename from corresponding
 676         patterns and macroize using X87MODEF mode iterator.
 677         * config/i386/sse.md (negv4sf2, absv4sf2, neg2vdf2, absv2df2):
 678         Change predicate of op1 to register_operand.
 679         * config/i386/i386.c (ix86_expand_fp_absneg_operator): Remove support
 680         for memory operands.
 681
 682 2008-01-07  Nathan Froyd  <froydnj@codesourcery.com>
 683
 684         * config/rs6000/rs6000.h (ASM_CPU_SPEC): Add clause for mcpu=8548.
 685
 686 2008-01-07  Richard Guenther  <rguenther@suse.de>
 687
 688         * basic-block.h (struct edge_def): Pair dest_idx with goto_locus
 689         fields.
 690
 691 2008-01-07  Richard Guenther  <rguenther@suse.de>
 692
 693         PR tree-optimization/34683
 694         * tree-ssa-sccvn.c (vuses_to_vec): Pre-allocate the vector of
 695         VOPs of the needed size to save memory.  Use VEC_quick_push
 696         to save compile-time.
 697         (vdefs_to_vec): Likewise.
 698
 699 2008-01-07  Sa Liu  <saliu@de.ibm.com>
 700
 701         * config/spu/spu.md (divdf3): Genetate inline code for double
 702         division.  The implementation doesn't handle INF or NAN, therefore it
 703         only applies when -ffinite-math-only is given.
 704
 705 2008-01-06  Paolo Carlini  <pcarlini@suse.de>
 706
 707         PR libstdc++/34680
 708         * c-cppbuiltin.c (c_cpp_builtins): Define __GXX_RTTI, if appropriate.
 709         * doc/cpp.texi ([Common Predefined Macros]): Document.
 710
 711 2008-01-06  Uros Bizjak  <ubizjak@gmail.com>
 712
 713         * config/i386/i386.c (ix86_emit_swsqrtsf): Use negative constants in
 714         order to use commutative addition instead of subtraction.
 715
 716 2008-01-06  Andrew Pinski  <andrew_pinski@playstation.sony.com>
 717             Mircea Namolaru  <namolaru@il.ibm.com>
 718             Vladimir Yanovsky  <yanov@il.ibm.com>
 719             Revital Eres  <eres@il.ibm.com>
 720
 721         PR tree-optimization/34263
 722         * tree-outof-ssa.c (process_single_block_loop_latch,
 723         contains_tree_r): New functions.
 724         (analyze_edges_for_bb): Call process_single_block_loop_latch
 725         function to empty single-basic-block latch block if possible.
 726
 727 2008-01-05  Uros Bizjak  <ubizjak@gmail.com>
 728
 729         * config/i386/i386.c (ix86_builtin_reciprocal): Remove check
 730         for TARGET_RECIP.
 731         (ix86_emit_swsqrtsf): Do not filter out infinity for rsqrt expansion.
 732
 733 2008-01-05  Richard Sandiford  <rsandifo@nildram.co.uk>
 734
 735         * c-omp.c (check_omp_for_incr_expr): Handle CONVERT_EXPR.
 736
 737 2008-01-05  Richard Sandiford  <rsandifo@nildram.co.uk>
 738
 739         * config/mips/mips.c (mips_in_small_data_p): Reinstate size > 0 check.
 740
 741 2008-01-05  Jakub Jelinek  <jakub@redhat.com>
 742
 743         PR tree-optimization/34618
 744         * tree-outof-ssa.c (create_temp): Copy over DECL_GIMPLE_REG_P
 745         flag from T.
 746
 747 2008-01-05  Uros Bizjak  <ubizjak@gmail.com>
 748
 749         PR target/34673
 750         * config/i386/i386.c (ix86_emit_swsqrtsf): Swap input operands
 751         in the call to gen_rtx_NE.  Remove unneeded VECTOR_MODE_P check.
 752         Update copyright year.
 753
 754         * config/i386/i386.md (rsqrtsf2): Enable for TARGET_SSE_MATH.
 755         Update copyright year.
 756         * config/i386/sse.md (rsqrtv4sf2): Ditto. Unconditionally expand
 757         using NR fixup.
 758
 759 2008-01-05  Zhouyi Zhou  <zhouzhouyi@FreeBSD.org>
 760
 761         * tree-vrp.c (find_conditional_asserts): Remove redundant check that
 762         edge does not point to current bb before changing need_assert.
 763
 764 2008-01-04  Richard Guenther  <rguenther@suse.de>
 765
 766         PR middle-end/34029
 767         * tree-cfg.c (verify_expr): Do not look inside ADDR_EXPRs
 768         for verifying purposes if they are is_gimple_min_invariant.
 769
 770 2008-01-04  Aldy Hernandez  <aldyh@redhat.com>
 771
 772         PR tree-optimization/34448
 773         PR tree-optimization/34465
 774         * gimplify.c (gimplify_init_constructor): Add new parameter
 775         notify_temp_creation.  Use it.
 776         (gimplify_modify_expr_rhs): Take volatiles into account when
 777         optimizing constructors.
 778         Do not optimize constructors if gimplify_init_constructor will dump to
 779         memory.
 780         * gcc.dg/tree-ssa/pr32901.c: Tests const volatiles.
 781         * gcc.c-torture/compile/pr34448.c: New.
 782
 783 2008-01-04  Jakub Jelinek  <jakub@redhat.com>
 784
 785         PR gcov-profile/34609
 786         * tree-inline.c (declare_return_variable): Set TREE_ADDRESSABLE on
 787         return_slot if result is TREE_ADDRESSABLE.
 788
 789 2008-01-04  Richard Sandiford  <rsandifo@nildram.co.uk>
 790
 791         * config/mips/mips.md (sqrt_condition): Tweak comment.
 792         (recip_condition): Likewise.  Require TARGET_FLOAT64 for DFmode.
 793
 794 2008-01-03  Tom Tromey  <tromey@redhat.com>
 795
 796         PR c/34457
 797         * c-common.c (c_type_hash): Handle VLAs.
 798
 799 2008-01-03  Jan Hubicka  <jh@suse.cz>
 800
 801         PR tree-optimization/31081
 802         * tree-inline.c (remap_ssa_name): Initialize uninitialized SSA vars to
 803         0 when inlining and not inlining to first basic block.
 804         (remap_decl): When var is initialized to 0, don't set default_def.
 805         (expand_call_inline): Set entry_bb.
 806         * tree-inline.h (copy_body_data): Add entry_bb.
 807
 808 2008-01-03  Jakub Jelinek  <jakub@redhat.com>
 809
 810         PR c++/34619
 811         * cgraphunit.c (cgraph_build_static_cdtor): set_cfun back to NULL
 812         before returning.
 813
 814         PR tree-optimization/29484
 815         * tree-inline.c (inline_forbidden_p_2): New function.
 816         (inline_forbidden_p): Disallow inlining if some static var
 817         has an address of a local LABEL_DECL in its initializer.
 818         * doc/extend.texi (Labels as Values): Document &&foo behaviour
 819         vs. inlining.
 820
 821 2008-01-03  Sebastian Pop  <sebastian.pop@amd.com>
 822
 823         PR tree-optimization/34635
 824         * tree-data-ref.c (add_other_self_distances): Make sure that the
 825         evolution step is constant.
 826
 827 2008-01-03  Jakub Jelinek  <jakub@redhat.com>
 828
 829         PR middle-end/34608
 830         * omp-low.c (expand_omp_parallel): Purge dead EH edges in the child fn.
 831
 832 2008-01-02  Richard Sandiford  <rsandifo@nildram.co.uk>
 833
 834         * tree-sra.c (scalarize_init): Insert the generate_element_init
 835         statements after the generate_element_zero statements.
 836
 837 2008-01-02  Richard Guenther  <rguenther@suse.de>
 838
 839         PR middle-end/34093
 840         PR middle-end/31976
 841         * tree-ssa-operands.c (ssa_operand_alloc): Also allocate a buffer
 842         for very large number of operands instead of ICEing.
 843
 844 2008-01-02  Arthur Norman <acn1@cam.ac.uk>
 845
 846         PR target/34013
 847         * gcc/config/i386/i386.c (ix86_expand_prologue): Save red-zone
 848         while stack probing.
 849
 850 2008-01-01  Douglas Gregor  <doug.gregor@gmail.com>
 851
 852         * c-opts.c (sanitize_cpp_opts): Don't warn about "long long" when
 853         in C++0x mode.
 854
 855 2008-01-01  Volker Reichelt  <v.reichelt@netcologne.de>
 856
 857         PR libmudflap/26442
 858         * tree-mudflap.c (mx_register_decls): Guard warning by
 859         !DECL_ARTIFICIAL check.
 860
 861 2008-01-01  Jakub Jelinek  <jakub@redhat.com>
 862
 863         * config/i386/sse.md (sse5_pperm, sse5_pperm_pack_v2di_v4si,
 864         sse5_pperm_pack_v4si_v8hi, sse5_pperm_pack_v8hi_v16qi,
 865         sse5_perm<mode>): Fix constraints.