gcc/ChangeLog

   1 2008-01-22  Jakub Jelinek  <jakub@redhat.com>
   2
   3         PR c++/34607
   4         * c-parser.c (c_parser_omp_for_loop): Don't call c_finish_omp_for
   5         if DECL_INITIAL (decl) is error_mark_node.
   6
   7         PR c++/34914
   8         * c-common.c (handle_vector_size_attribute): Only allow
   9         integral, scalar float and fixed point types.  Handle OFFSET_TYPE
  10         the same way as pointer, array etc. types.
  11         * tree.c (reconstruct_complex_type): Handle OFFSET_TYPE.
  12
  13         PR c++/34917
  14         * tree.c (build_type_attribute_qual_variant): Call
  15         build_qualified_type if attributes are equal, but quals are not.
  16
  17 2008-01-22  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
  18
  19         PR 32102
  20         * doc/invoke.texi (-Wall): -Wall enables -Wstrict-overflow=1.
  21         * flags.h (warn_strict_aliasing): Remove.
  22         (warn_strict_overflow): Remove.
  23         * opts.c (warn_strict_aliasing): Remove.
  24         (warn_strict_overflow): Remove.
  25         * c-opts.c (c_common_handle_option): -Wall only sets
  26         -Wstrict-aliasing or -Wstrict-overflow if they are uninitialized.
  27         (c_common_post_options): Give default values to -Wstrict-aliasing
  28         and -Wstrict-overflow if they are uninitialized.
  29         * common.opt (Wstrict-aliasing): Specify Var and Init.
  30         (Wstrict-overflow): Likewise.
  31
  32 2008-01-22  Kenneth Zadeck <zadeck@naturalbridge.com>
  33
  34         PR rtl-optimization/26854
  35         PR rtl-optimization/34400
  36         PR rtl-optimization/34884
  37         * ddg.c (create_ddg_dep_from_intra_loop_link): Use
  38         DF_RD->gen.
  39         * df.h (df_changeable_flags.DF_RD_NO_TRIM): Deleted
  40         (df_rd_bb_info.expanded_lr_out): Deleted
  41         * loop_invariant.c (find_defs): Deleted DF_RD_NO_TRIM flag.
  42         * loop_iv.c (iv_analysis_loop_init): Ditto.  * df-problems.c
  43         (df_rd_free_bb_info, df_rd_alloc, df_rd_confluence_n,
  44         df_rd_bb_local_compute, df_rd_transfer_function, df_rd_free):
  45         Removed code to allocate, initialize or free expanded_lr_out.
  46         (df_rd_bb_local_compute_process_def): Restructured to make more
  47         understandable.
  48         (df_rd_confluence_n): Removed code to no apply invalidate_by_call
  49         sets if the sets are being trimmed.
  50
  51 2008-01-22  H.J. Lu  <hongjiu.lu@intel.com>
  52
  53         PR bootstrap/32287
  54         * configure.ac (ld_vers): Support GNU linker version xx.xx.*
  55         (as_vers): Likewise.
  56         * configure: Regenerated.
  57
  58 2008-01-22  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
  59
  60         PR middle-end/33092
  61         * tree-pass.h (pass_build_alias): New pass.
  62         * tree-ssa-alias.c (gate_build_alias): New.
  63         (pass_build_alias): New.
  64         * passes.c (init_optimization_passes): Add pass_build_alias after
  65         pass_create_structure_vars.
  66
  67 2008-01-22  Wolfgang Gellerich  <gellerich@de.ibm.com>
  68
  69         * config/s390/s390.h (S390_TDC_POSITIVE_NORMALIZED_NUMBER):
  70         Renamed to S390_TDC_POSITIVE_NORMALIZED_BFP_NUMBER.
  71         (S390_TDC_NEGATIVE_NORMALIZED_NUMBER): Renamed to
  72         S390_TDC_NEGATIVE_NORMALIZED_BFP_NUMBER.
  73         (S390_TDC_POSITIVE_DENORMALIZED_NUMBER): Renamed to
  74         S390_TDC_POSITIVE_DENORMALIZED_BFP_NUMBER.
  75         (S390_TDC_NEGATIVE_DENORMALIZED_NUMBER): Renamed to
  76         S390_TDC_NEGATIVE_DENORMALIZED_BFP_NUMBER.
  77         (S390_TDC_POSITIVE_NORMALIZED_BFP_NUMBER): New constant.
  78         (S390_TDC_NEGATIVE_NORMALIZED_BFP_NUMBER): New constant.
  79         (S390_TDC_POSITIVE_DENORMALIZED_BFP_NUMBER): New constant.
  80         (S390_TDC_NEGATIVE_DENORMALIZED_BFP_NUMBER): New constant.
  81         * config/s390/s390.md (FP_ALL): New mode iterator.
  82         (_d): New mode attribute.
  83         ("*signbit<mode>2>"): Changed mode of first operand.
  84         ("isinf<mode>2"): Changed mode of first operand.
  85         ("*TDC_insn"): Adaptation for DFP modes.
  86
  87 2008-01-22  Ben Elliston  <bje@au.ibm.com>
  88
  89         * tree.c (check_qualified_type): Improve function description.
  90
  91 2008-01-21  Jason Merrill  <jason@redhat.com>
  92
  93         PR c++/34196
  94         * tree.h (TRY_CATCH_IS_CLEANUP): New macro.
  95         * tree-eh.c (honor_protect_cleanup_actions): Strip TRY_CATCH_EXPR
  96         if it is set.
  97
  98 2008-01-21  DJ Delorie  <dj@redhat.com>
  99
 100         * doc/tm.texi (HARD_REGNO_NREGS): Note that this macro must not
 101         return zero.
 102
 103 2008-01-21  Richard Guenther  <rguenther@suse.de>
 104
 105         PR middle-end/34856
 106         * tree-cfg.c (verify_expr): Allow all invariant expressions
 107         instead of just constant class ones as reference argument.
 108         * tree-ssa-loop-im.c (for_each_index): Handle CONSTRUCTOR
 109         like any other constant.
 110         * tree-ssa-sccvn.c (copy_reference_ops_from_ref): Likewise.
 111
 112 2008-01-21  H.J. Lu  <hongjiu.lu@intel.com>
 113
 114         * regmove.c (fixup_match_1): Update call crossed frequencies.
 115
 116 2008-01-21  Richard Guenther  <rguenther@suse.de>
 117
 118         PR c/34885
 119         * tree-inline.c (setup_one_parameter): Deal with mismatched
 120         types using a VIEW_CONVERT_EXPR.
 121
 122 2008-01-21  Alon Dayan  <alond@il.ibm.com>
 123             Olga Golovanevsky  <olga@il.ibm.com>
 124
 125         PR tree-optimization/34701
 126         * ipa-struct-reorg.c (gen_size): Fix the malloc parameter calculation
 127         when the structure size is not a power of 2.
 128
 129 2008-01-20  Kenneth Zadeck <zadeck@naturalbridge.com>
 130
 131         * doc/install.texi: Add doc for --enable-checking=df.
 132
 133 2008-01-20  Kaz Kojima  <kkojima@gcc.gnu.org>
 134
 135         PR rtl-optimization/34808
 136         * emit-rtl.c (try_split): Handle REG_RETVAL notes.
 137
 138 2008-01-20  Richard Sandiford  <rsandifo@nildram.co.uk>
 139
 140         * global.c (find_reg): Only compute EH_RETURN_DATA_REGNO once per
 141         input.
 142
 143 2008-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
 144
 145         PR rtl-optimization/26854
 146         PR rtl-optimization/34400
 147         * ddg.c (create_ddg_dep_from_intra_loop_link): Do not use
 148         DF_RD->gen.
 149         * df.h (df_changeable_flags.DF_RD_NO_TRIM): New.
 150         (df_rd_bb_info.expanded_lr_out): New.
 151         * loop_invariant.c (find_defs): Added DF_RD_NO_TRIM flag.
 152         * loop_iv.c (iv_analysis_loop_init): Ditto.
 153         * df-problems.c (df_rd_free_bb_info, df_rd_alloc, df_rd_confluence_n,
 154         df_rd_bb_local_compute, df_rd_transfer_function, df_rd_free):
 155         Added code to allocate, initialize or free expanded_lr_out.
 156         (df_rd_bb_local_compute_process_def): Restructured to make
 157         more understandable.
 158         (df_rd_confluence_n): Add code to do nothing with fake edges and
 159         code to no apply invalidate_by_call sets if the sets are being trimmed.
 160         (df_lr_local_finalize): Renamed to df_lr_finalize.
 161         (df_live_local_finalize): Renamed to df_live_finalize.
 162
 163 2008-01-20  Richard Sandiford  <rsandifo@nildram.co.uk>
 164
 165         PR target/34831
 166         * config/mips/mips.md (div<mode>3): Use <recip_condition> when
 167         deciding whether to use reciprocal instructions.
 168
 169 2008-01-19  Uros Bizjak  <ubizjak@gmail.com>
 170
 171         * dwarf2out.c (dwarf2out_switch_text_section): Do not call
 172         dwarf2out_note_section_used if cold_text_section is NULL.
 173
 174 2008-01-19  Jakub Jelinek  <jakub@redhat.com>
 175
 176         PR gcov-profile/34610
 177         * tree-cfg.c (make_edges): Mark both outgoing edges from
 178         OMP_CONTINUE and from OMP_FOR as EDGE_ABNORMAL.
 179         * omp-low.c (expand_omp_for): Clear EDGE_ABNORMAL bits
 180         from OMP_FOR and OMP_CONTINUE outgoing edges.
 181
 182         * tree-profile.c (tree_profiling): Return early if
 183         cfun->after_tree_profile != 0.  Set cfun->after_tree_profile
 184         at the end.
 185         * omp-low.c (expand_omp_parallel): Copy after_tree_profile
 186         from cfun to child_cfun.
 187         * function.h (struct function): Add after_tree_profile bit.
 188
 189 2008-01-19 Anatoly Sokolov <aesok@post.ru>
 190
 191         * config/avr/avr.S (_exit): Disable interrupt.
 192
 193 2008-01-18  Kenneth Zadeck  <zadeck@naturalbridge.com>
 194             Steven Bosscher  <stevenb.gcc@gmail.com>
 195
 196         PR rtl-optimization/26854
 197         PR rtl-optimization/34400
 198         * df-problems.c (df_live_scratch): New scratch bitmap.
 199         (df_live_alloc): Allocate df_live_scratch when doing df_live.
 200         (df_live_reset): Clear the proper bitmaps.
 201         (df_live_bb_local_compute): Only process the artificial defs once
 202         since the order is not important.
 203         (df_live_init): Init the df_live sets only with the variables
 204         found live by df_lr.
 205         (df_live_transfer_function): Use the df_lr sets to prune the
 206         df_live sets as they are being computed.
 207         (df_live_free): Free df_live_scratch.
 208
 209 2008-01-18  Ian Lance Taylor  <iant@google.com>
 210
 211         * common.opt: Add fmerge-debug-strings.
 212         * dwarf2out.c (DEBUG_STR_SECTION_FLAGS): Test
 213         flag_merge_debug_strings rather than flag_merge_constants.
 214         * doc/invoke.texi (Option Summary): Mention
 215         -fmerge-debug-strings.
 216         (Debugging Options): Document -fmerge-debug-strings.
 217
 218 2008-01-18  Ian Lance Taylor  <iant@google.com>
 219
 220         PR c++/33407
 221         * tree.h (DECL_IS_OPERATOR_NEW): Define.
 222         (struct tree_function_decl): Add new field operator_new_flag.
 223         * tree-inline.c (expand_call_inline): When inlining a call to
 224         operator new, force the return value to go into a variable, and
 225         set DECL_NO_TBAA_P on that variable.
 226         * c-decl.c (merge_decls): Merge DECL_IS_OPERATOR_NEW flag.
 227
 228 2008-01-18  Uros Bizjak  <ubizjak@gmail.com>
 229
 230         PR debug/34484
 231         * dwarf2out.c (dwarf2out_switch_text_section): Do not guard with
 232         DWARF2_DEBUGGING_INFO.
 233         (dwarf2out_note_section_used): Ditto.  Add prototype.
 234         (have_multiple_function_sections, text_section_used,
 235         cold_text_section_used, *cold_text_sections): Move declarations
 236         before their uses.
 237
 238 2007-01-17  Bob Wilson  <bob.wilson@acm.org>
 239
 240         * config/xtensa/unwind-dw2-xtensa.h (_Unwind_FrameState): Remove pc
 241         field and add signal_ra.
 242         * config/xtensa/unwind-dw2-xtensa.c (uw_frame_state_for): Remove
 243         assignments to frame state pc.  Move end of stack check after
 244         MD_FALLBACK_FRAME_STATE_FOR.
 245         (uw_update_context_1): Use frame state signal_regs if set, instead
 246         of checking signal_frame flag.
 247         (uw_update_context): Use frame state signal_ra if set.
 248         * config/xtensa/linux.h (MD_UNWIND_SUPPORT): Define.
 249         * config/xtensa/linux-unwind.h: New file.
 250
 251 2007-01-18  Bernhard Fischer  <aldot@gcc.gnu.org>
 252
 253         * modulo-sched.c (get_sched_window): Fix comment typo.
 254
 255 2008-01-17  Andrew MacLeod  <amacleod@redhat.com>
 256
 257         PR tree-optimization/34648
 258         * tree-ssa-sccvn.c (visit_use): Expressions which can throw are varying.
 259
 260 2008-01-17  Anatoly Sokolov <aesok@post.ru>
 261
 262         * config/avr/avr.h (LINK_SPEC): Support -mrelax and -mpmem-wrap-around.
 263         * config/avr/avr.opt (mrelax, mpmem-wrap-around): Add.
 264
 265 2008-01-17  Seongbae Park  <seongbae.park@gmail.com>
 266
 267         PR rtl-optimization/34400
 268         * df-core.c (df_worklist_dataflow_overeager,
 269         df_worklist_dataflow_doublequeue): New functions.
 270         (df_worklist_dataflow): Two different worklist solvers.
 271         * params.def (PARAM_DF_DOUBLE_QUEUE_THRESHOLD_FACTOR):
 272         New param.
 273
 274 2008-01-16  Sebastian Pop  <sebastian.pop@amd.com>
 275
 276         PR testsuite/34821
 277         * doc/invoke.texi: Document the dependence on pthread for fopenmp
 278         and ftree-parallelize-loops.
 279
 280 2008-01-17  Mircea Namolaru  <namolaru@il.ibm.com>
 281
 282         PR rtl-optimization/34826
 283         * loop-doloop (doloop_modify): Update the REG_BR_PROB note.
 284
 285 2008-01-17  Andreas Krebbel  <krebbel1@de.ibm.com>
 286
 287         * global.c (find_reg): Mark the eh regs as used if necessary.
 288         * ra-conflict.c (global_conflicts): Set no_eh_reg flag.
 289         * ra.h (struct allocno): no_eh_reg field added.  Changed
 290         no_stack_reg type to bitfield.
 291
 292 2008-01-17  Eric Botcazou  <ebotcazou@adacore.com>
 293
 294         * tree.c (substitute_in_expr): Add missing 'break'.
 295
 296 2008-01-17  Richard Guenther  <rguenther@suse.de>
 297
 298         PR tree-optimization/34825
 299         * tree-ssa-math-opts.c (is_division_by): Do not recognize
 300         x / x as division to handle.
 301
 302 2008-01-16  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
 303
 304         * pa64-hpux.h (LIB_SPEC): Add "-lpthread" in shared links if "-mt" or
 305         "-pthread" is specified.
 306         * pa-hpux11.h (LIB_SPEC): Likewise.
 307
 308 2007-01-16  Janis Johnson  <janis187@us.ibm.com>
 309             Peter Bergner  <bergner@vnet.ibm.com>
 310
 311         PR rtl-optimization/33796
 312         * sparseset.c (sparseset_alloc): Use xcalloc rather than xmalloc.
 313
 314 2008-01-16  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
 315
 316         PR libgfortran/34699
 317         * pa-hpux.h (LINK_SPEC): Only search /lib/pa1.1 and /usr/lib/pa1.1 on
 318         static links.
 319         * pa-hpux10.h (LINK_SPEC): Likewise.
 320         * pa-hpux11.h (LINK_SPEC): Don't search /lib/pa1.1 and /usr/lib/pa1.1.
 321
 322 2008-01-16  Richard Guenther  <rguenther@suse.de>
 323
 324         PR middle-end/32628
 325         * fold-const.c (fold_convert_const_int_from_int): Do not
 326         set overflow if that occured only because of a sign extension
 327         change when converting from/to a sizetype with the same
 328         precision and signedness.
 329
 330 2008-01-16  Uros Bizjak  <ubizjak@gmail.com>
 331
 332         PR debug/34249
 333         * dwarf2out.c (output_call_frame_info): Move output of FDE initial
 334         location address to the correct place.  Update copyright year.
 335
 336 2008-01-16  Sebastian Pop  <sebastian.pop@amd.com>
 337
 338         * lambda-code.c (lambda_transform_legal_p): Handle the case of
 339         no dependences in the dependence_relations vector.
 340
 341 2008-01-16  Jan Hubicka  <jh@suse.cz>
 342
 343         PR rtl-optimization/31396
 344         * regstat.c (regstat_bb_compute_ri): Compute FREQ_CALLS_CROSSED.
 345         * cfg.c (dump_reg_info): Print it.
 346         * regs.h (struct reg_info_t): add freq_calls_crossed.
 347         (REG_FREQ_CALLS_CROSSED): New macro.
 348         * global.c (global_alloc): Compute freq_calls_crossed for allocno.
 349         (find_reg): Update call of CALLER_SAVE_PROFITABLE.
 350         * regmove.c (optimize_reg_copy_1, optimize_reg_copy_2, fixup_match_2,
 351         regmove_optimize): Update call crossed frequencies.
 352         * local-alloc.c (struct qty): Add freq_calls_crossed.
 353         (alloc_qty): Copute freq_calls_crossed.
 354         (update_equiv_regs, combine_regs): Update REG_FREQ_CALLS_CROSSED.
 355         (find_free_reg): Update call of CALLER_SAVE_PROFITABLE.
 356         * ra.h (struct allocno): Add freq_calls_crossed.
 357
 358 2008-01-16  Sebastian Pop  <sebastian.pop@amd.com>
 359
 360         * gcc.c (LINK_COMMAND_SPEC): Add includes and link options for
 361         libgomp when compiling with ftree-parallelize-loops.
 362         (GOMP_SELF_SPECS): Add -pthread for ftree-parallelize-loops.
 363
 364 2008-01-16  Richard Guenther  <rguenther@suse.de>
 365
 366         PR tree-optimization/34769
 367         * tree-data-ref.c (initialize_matrix_A): Revert fix for PR34458.
 368         * tree.c (int_cst_value): Instead make this function more
 369         permissive in what it accepts as valid input.  Document this
 370         function always sign-extends the value.
 371
 372 2008-01-16  Jakub Jelinek  <jakub@redhat.com>
 373             Richard Guenther  <rguenther@suse.de>
 374
 375         PR c/34668
 376         * gimplify.c (fold_indirect_ref_rhs): Rename to ...
 377         (gimple_fold_indirect_ref_rhs): ... this.
 378         (gimple_fold_indirect_ref): New function with foldings
 379         that preserve lvalueness.
 380         (gimplify_modify_expr_rhs): Call gimple_fold_indirect_ref_rhs.
 381         * tree-flow.h (gimple_fold_indirect_ref): Declare.
 382         * tree-inline.c (copy_body_r): Use gimple_fold_indirect_ref
 383         to fold an INDIRECT_REF, fall back to the old use of
 384         fold_indirect_ref_1.
 385
 386 2008-01-16  Sebastian Pop  <sebastian.pop@amd.com>
 387
 388         * tree-data-ref.c (subscript_dependence_tester_1): Call
 389         free_conflict_function.
 390         (compute_self_dependence): Same.
 391
 392 2008-01-16  Uros Bizjak  <ubizjak@gmail.com>
 393
 394         PR debug/34249
 395         * debug.h (dwarf2out_switch_text_section): Move declaration from ...
 396         * dwarf2out.c (dwarf2out_switch_text_section): ... here.  Make
 397         function global.
 398         * final.c (final_scan_insn) [NOTE_INSN_SWITCH_TEXT_SECTIONS]:
 399         Depending on dwarf2out_do_frame, call dwarf2out_switch_text_section
 400         for DWARF2_UNWIND_INFO targets.
 401
 402 2008-01-16  Richard Guenther  <rguenther@suse.de>
 403
 404         PR c/34768
 405         * c-typeck.c (common_pointer_type): Do not merge inconsistent
 406         type qualifiers for function types.
 407
 408 2008-01-15  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
 409
 410         * tree-parloops.c (gen_parallel_loop): Fix ommision of declaration for
 411         loop_iterator li from previous commit.
 412
 413 2008-01-15  Sebastian Pop  <sebastian.pop@amd.com>
 414
 415         * tree-parloops.c (gen_parallel_loop): Free loop bound estimations.
 416
 417 2008-01-12  Sebastian Pop  <sebastian.pop@amd.com>
 418
 419         * tree-parloops.c (loop_has_blocks_with_irreducible_flag): New.
 420         (parallelize_loops): Don't parallelize irreducible components.
 421
 422 2008-01-14  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
 423
 424         PR c++/24924
 425         * c-opts (c_common_post_options): Do not enable CPP
 426         flag_pedantic_errors by default.
 427
 428 2008-01-14  Eric Botcazou  <ebotcazou@adacore.com>
 429
 430         PR rtl-optimization/31944
 431         * cse.c (remove_pseudo_from_table): New function.
 432         (merge_equiv_classes): Use above function to remove pseudo-registers.
 433         (invalidate): Likewise.
 434
 435 2008-01-13  Richard Guenther  <rguenther@suse.de>
 436
 437         PR middle-end/34601
 438         * emit-rtl.c (set_reg_attrs_for_decl_rtl): Use DECL_MODE
 439         instead of TYPE_MODE to deal with calls from expand_one_error_var.
 440
 441 2008-01-13  Uros Bizjak  <ubizjak@gmail.com>
 442
 443         * gcse.c (cprop_jump): Call validate_unshare_change instead of
 444         validate_change to unshare the source of the PC set.
 445
 446 2008-01-12  Jan Hubicka  <jh@suse.cz>
 447
 448         PR middle-end/32135
 449         * tree-ssa-ccp.c (maybe_fold_offset_to_array_ref): Do not construct
 450         references above array bounds.  This might trigger bounds checks for
 451         pointers to arrays.
 452
 453 2008-01-12  Sebastian Pop  <sebastian.pop@amd.com>
 454
 455         * tree-ssa-ter.c (free_temp_expr_table): Free num_in_part and
 456         new_replaceable_dependencies.
 457
 458 2008-01-12  Doug Kwan  <dougkwan@google.com>
 459
 460         * c-decl.c: (grokdeclarator): Use OPT_Wignored_qualifiers
 461         instead of OPT_Wreturn_type in warning due to ignored return type
 462         qualifiers.
 463         * c-opt.c (c_common_post_option): Add -Wignored-qualifiers to
 464         options included in -Wextra.
 465         * c.opt: New option -Wignored_qualifiers.
 466         * doc/invoke.texi (Warning Options, -Wextra): Add new option
 467         -Wignore_qualifiers.
 468         (-Wignored-qualifiers): Document.
 469         (-Wreturn-type): Remove description of functionality now handled
 470         by -Wignored-qualifiers.
 471
 472 2008-01-12  Eric Botcazou  <ebotcazou@adacore.com>
 473
 474         PR ada/33788
 475         * fold-const.c (fold_unary) <VIEW_CONVERT_EXPR>: Fold an existing
 476         NOP_EXPR if it is between integral types with the same precision.
 477
 478 2008-01-12  Jan Hubicka  <jh@suse.cz>
 479
 480         PR other/28023
 481         * invoke.texi (max-inline-recursive-depth): Fix default value.
 482
 483 2008-01-12  Zdenek Dvorak  <ook@ucw.cz>
 484
 485         * tree-parloops.c (transform_to_exit_first_loop): Cast nit to the
 486         correct type.
 487
 488 2008-01-11  Bob Wilson  <bob.wilson@acm.org>
 489
 490         * config/xtensa/xtensa.c (override_options): Set flag_shlib.
 491
 492 2008-01-11  James E. Wilson  <wilson@specifix.com>
 493
 494         PR target/26015
 495         * config/vax/elf.h (FRAME_POINTER_CFA_OFFSET): Define.
 496
 497 2008-01-11  Anatoly Sokolov <aesok@post.ru>
 498
 499         * config/avr/avr.c (expand_prologue, expand_epilogue): Don't
 500         save/restore frame pointer register and don't use 'call-prologues'
 501         optimization in function with "OS_task" attribute.
 502
 503 2008-01-11  Eric Botcazou  <ebotcazou@adacore.com>
 504
 505         PR middle-end/31309
 506         * expr.c (copy_blkmode_from_reg): Use a mode suited to the size
 507         when copying to memory.
 508
 509 2008-01-11  Steven Bosscher  <stevenb.gcc@gmail.com>
 510
 511         PR rtl-optimization/30905
 512         * cfgcleanup.c: Include dce.h
 513         (crossjumps_occured): New global variable.
 514         (try_crossjump_bb): Exit loop after finding a fallthru edge.
 515         If something changed, set crossjumps_occured to true.
 516         (try_optimize_cfg): Clear crossjumps_occured at the beginning.
 517         Don't add/remove fake edges to exit here...
 518         (cleanup_cfg): ...but do it here, when crossjumping.
 519         Run a fast DCE when successful crossjumps occured in the latest
 520         iteration of try_optimize_cfg.
 521
 522 2008-01-11  Richard Guenther  <rguenther@suse.de>
 523
 524         * tree-ssa-sccvn.c (struct vn_binary_op_s): Move hashcode near opcode.
 525         (struct vn_unary_op_s): Likewise.
 526         (vn_reference_insert): Free old reference on hash collision.
 527
 528 2008-01-10  Raksit Ashok  <raksit@google.com>
 529
 530         PR rtl-optimization/27971
 531         * combine.c (find_split_point): Split PLUS expressions which are
 532         inside a MEM rtx, and whose first operand is complex.
 533
 534 2008-01-10  DJ Delorie  <dj@redhat.com>
 535
 536         * config/m32c/m32c.c (m32c_hard_regno_nregs_1): Renamed from...
 537         (m32c_hard_regno_nregs): ...this, which is now a wrapper.
 538         (m32c_hard_regno_ok): Call the underlying function.
 539
 540 2008-01-10  Richard Guenther  <rguenther@suse.de>
 541
 542         PR middle-end/34683
 543         * tree-cfg.c (tree_merge_blocks): Do not go through the
 544         full-blown folding and stmt updating path if we just deal
 545         with virtual operands.
 546         * tree-ssa-copy.c (may_propagate_copy): Do not short-cut
 547         test for abnormal SSA_NAMEs.
 548
 549 2008-01-10  Andreas Krebbel  <krebbel1@de.ibm.com>
 550
 551         PR middle-end/34641
 552         * reload.c (push_reload): Add assertions.  All constants from
 553         reg_equiv_constant should have been used for replacing the respective
 554         pseudo earlier.
 555         (find_reloads_address): Invoke find_reloads_address_part for
 556         constant taken from the reg_equiv_constant array.
 557
 558 2008-01-10  Steven Bosscher  <stevenb.gcc@gmail.com>
 559
 560         * tree-ssa-sccvn.h (struct vn_ssa_aux): Make the most accessed
 561         field (valnum) the first in the struct.  Replace bools with
 562         unit bit fields.
 563
 564 2008-01-10  Richard Guenther  <rguenther@suse.de>
 565
 566         PR tree-optimization/34651
 567         * tree-sra.c (sra_build_assignment): Sanitize.  Use the correct
 568         types and ordering for masking and converting.
 569
 570 2008-01-09  Sebastian Pop  <sebastian.pop@amd.com>
 571
 572         PR tree-optimization/34017
 573         * lambda-code.c (lambda_loopnest_to_gcc_loopnest): Generate code
 574         also for PHI_NODE expressions.
 575
 576 2008-01-09  Jan Hubicka  <jh@suse.cz>
 577
 578         PR tree-optimization/34708
 579         * tree-inline.c (estimate_num_insns_1): Compute cost of SWITCH_EXPR
 580         based on number of case labels.
 581         (init_inline_once): Remove switch_cost.
 582         * tree-inline.h (eni_weights_d): Remove switch_cost.
 583
 584 2008-01-09  Richard Guenther  <rguenther@suse.de>
 585         Andrew Pinski  <andrew_pinski@playstation.sony.com>
 586
 587         PR middle-end/30132
 588         * gimplify.c (gimplify_cond_expr): Do not create an addressable
 589         temporary if an rvalue is ok or an lvalue is not required.
 590
 591 2008-01-09  Richard Guenther  <rguenther@suse.de>
 592
 593         PR middle-end/34458
 594         * tree-data-ref.c (initialize_matrix_A): Use tree_low_cst,
 595         adjust return type.
 596
 597 2008-01-09  Richard Guenther  <rguenther@suse.de>
 598
 599         PR middle-end/34679
 600         * tree.c (host_integerp): Check for sizetype only if the
 601         type is an integer type.
 602
 603 2008-01-09  Steven Bosscher  <stevenb.gcc@gmail.com>
 604
 605         PR debug/26364
 606         * opts.c (decode_options): Disable inlining of functions called
 607         once if not in unit-at-a-time mode.
 608
 609 2008-01-09  Alexandre Oliva  <aoliva@redhat.com>
 610
 611         * Makefile.in (dse.o): Remove duplicate $(RECOG_H) dependency.
 612
 613 2008-01-08  Richard Guenther  <rguenther@suse.de>
 614
 615         PR middle-end/31863
 616         * tree-ssa-structalias.c (push_fields_onto_fieldstack): Bail
 617         out early if the result will be unused.
 618
 619 2008-01-08  Uros Bizjak  <ubizjak@gmail.com>
 620
 621         PR target/34709
 622         Revert:
 623
 624         2008-01-05  Uros Bizjak  <ubizjak@gmail.com>
 625         * config/i386/i386.c (ix86_builtin_reciprocal): Remove check
 626         for TARGET_RECIP.
 627
 628 2008-01-08  Jan Sjodin  <jan.sjodin@amd.com>
 629
 630         * config/i386/i386.c (k8_cost, amdfam10_cost): Branch costs
 631         for vectorization tuned.
 632
 633 2008-01-08  Richard Guenther  <rguenther@suse.de>
 634
 635         PR tree-optimization/34683
 636         * tree-ssa-operands.c (operand_build_cmp): Export.
 637         * tree-ssa-operands.h (operand_build_cmp): Declare.
 638         * tree-vn.c (vuses_compare): Remove.
 639         (sort_vuses): Use operand_build_cmp.
 640         (sort_vuses_heap): Likewise.
 641         * tree-ssa-sccvn.c (vuses_to_vec): Use VEC_reserve, not VEC_alloc
 642         to re-use old VEC if available.  Do not sort already sorted VUSEs.
 643         (vdefs_to_vec): Do not sort already sorted VDEFs.
 644
 645 2008-01-08  Jakub Jelinek  <jakub@redhat.com>
 646
 647         PR middle-end/34694
 648         * omp-low.c (copy_var_decl): Copy also DECL_SOURCE_LOCATION.
 649
 650 2008-01-08  Uros Bizjak  <ubizjak@gmail.com>
 651
 652         PR target/34702
 653         * doc/invoke.texi (i386 and x86-64 Options) [mrecip]: Document
 654         limitations of reciprocal sequences on x86 targets.
 655
 656 2008-01-08  Richard Guenther  <rguenther@suse.de>
 657
 658         PR tree-optimization/34683
 659         * tree-flow-inline.h (var_ann): Remove overzealous asserts.
 660
 661 2008-01-07  Jakub Jelinek  <jakub@redhat.com>
 662
 663         PR target/34622
 664         * config/darwin.c (darwin_mergeable_string_section): Don't use
 665         .cstring if int_size_in_bytes != TREE_STRING_LENGTH.
 666
 667 2008-01-07  Uros Bizjak  <ubizjak@gmail.com>
 668
 669         PR target/34682
 670         * config/i386/i386.md (neg<mode>2): Rename from negsf2, negdf2 and
 671         negxf2.  Macroize expander using X87MODEF mode iterator.  Change
 672         predicates of op0 and op1 to register_operand.
 673         (abs<mode>2): Rename from abssf2, absdf2 and negxf2.  Macroize
 674         expander using X87MODEF mode iterator.  Change predicates of
 675         op0 and op1 to register_operand.
 676         ("*absneg<mode>2_mixed", "*absneg<mode>2_sse"): Rename from
 677         corresponding patterns and macroize using MODEF macro.  Change
 678         predicates of op0 and op1 to register_operand and remove
 679         "m" constraint. Disparage "r" alternative with "!".
 680         ("*absneg<mode>2_i387"): Rename from corresponding patterns and
 681         macroize using X87MODEF macro.  Change predicates of op0 and op1
 682         to register_operand and remove "m" constraint.  Disparage "r"
 683         alternative with "!".
 684         (absneg splitter with memory operands): Remove.
 685         ("*neg<mode>2_1", "*abs<mode>2_1"): Rename from corresponding
 686         patterns and macroize using X87MODEF mode iterator.
 687         * config/i386/sse.md (negv4sf2, absv4sf2, neg2vdf2, absv2df2):
 688         Change predicate of op1 to register_operand.
 689         * config/i386/i386.c (ix86_expand_fp_absneg_operator): Remove support
 690         for memory operands.
 691
 692 2008-01-07  Nathan Froyd  <froydnj@codesourcery.com>
 693
 694         * config/rs6000/rs6000.h (ASM_CPU_SPEC): Add clause for mcpu=8548.
 695
 696 2008-01-07  Richard Guenther  <rguenther@suse.de>
 697
 698         * basic-block.h (struct edge_def): Pair dest_idx with goto_locus
 699         fields.
 700
 701 2008-01-07  Richard Guenther  <rguenther@suse.de>
 702
 703         PR tree-optimization/34683
 704         * tree-ssa-sccvn.c (vuses_to_vec): Pre-allocate the vector of
 705         VOPs of the needed size to save memory.  Use VEC_quick_push
 706         to save compile-time.
 707         (vdefs_to_vec): Likewise.
 708
 709 2008-01-07  Sa Liu  <saliu@de.ibm.com>
 710
 711         * config/spu/spu.md (divdf3): Genetate inline code for double
 712         division.  The implementation doesn't handle INF or NAN, therefore it
 713         only applies when -ffinite-math-only is given.
 714
 715 2008-01-06  Paolo Carlini  <pcarlini@suse.de>
 716
 717         PR libstdc++/34680
 718         * c-cppbuiltin.c (c_cpp_builtins): Define __GXX_RTTI, if appropriate.
 719         * doc/cpp.texi ([Common Predefined Macros]): Document.
 720
 721 2008-01-06  Uros Bizjak  <ubizjak@gmail.com>
 722
 723         * config/i386/i386.c (ix86_emit_swsqrtsf): Use negative constants in
 724         order to use commutative addition instead of subtraction.
 725
 726 2008-01-06  Andrew Pinski  <andrew_pinski@playstation.sony.com>
 727             Mircea Namolaru  <namolaru@il.ibm.com>
 728             Vladimir Yanovsky  <yanov@il.ibm.com>
 729             Revital Eres  <eres@il.ibm.com>
 730
 731         PR tree-optimization/34263
 732         * tree-outof-ssa.c (process_single_block_loop_latch,
 733         contains_tree_r): New functions.
 734         (analyze_edges_for_bb): Call process_single_block_loop_latch
 735         function to empty single-basic-block latch block if possible.
 736
 737 2008-01-05  Uros Bizjak  <ubizjak@gmail.com>
 738
 739         * config/i386/i386.c (ix86_builtin_reciprocal): Remove check
 740         for TARGET_RECIP.
 741         (ix86_emit_swsqrtsf): Do not filter out infinity for rsqrt expansion.
 742
 743 2008-01-05  Richard Sandiford  <rsandifo@nildram.co.uk>
 744
 745         * c-omp.c (check_omp_for_incr_expr): Handle CONVERT_EXPR.
 746
 747 2008-01-05  Richard Sandiford  <rsandifo@nildram.co.uk>
 748
 749         * config/mips/mips.c (mips_in_small_data_p): Reinstate size > 0 check.
 750
 751 2008-01-05  Jakub Jelinek  <jakub@redhat.com>
 752
 753         PR tree-optimization/34618
 754         * tree-outof-ssa.c (create_temp): Copy over DECL_GIMPLE_REG_P
 755         flag from T.
 756
 757 2008-01-05  Uros Bizjak  <ubizjak@gmail.com>
 758
 759         PR target/34673
 760         * config/i386/i386.c (ix86_emit_swsqrtsf): Swap input operands
 761         in the call to gen_rtx_NE.  Remove unneeded VECTOR_MODE_P check.
 762         Update copyright year.
 763
 764         * config/i386/i386.md (rsqrtsf2): Enable for TARGET_SSE_MATH.
 765         Update copyright year.
 766         * config/i386/sse.md (rsqrtv4sf2): Ditto. Unconditionally expand
 767         using NR fixup.
 768
 769 2008-01-05  Zhouyi Zhou  <zhouzhouyi@FreeBSD.org>
 770
 771         * tree-vrp.c (find_conditional_asserts): Remove redundant check that
 772         edge does not point to current bb before changing need_assert.
 773
 774 2008-01-04  Richard Guenther  <rguenther@suse.de>
 775
 776         PR middle-end/34029
 777         * tree-cfg.c (verify_expr): Do not look inside ADDR_EXPRs
 778         for verifying purposes if they are is_gimple_min_invariant.
 779
 780 2008-01-04  Aldy Hernandez  <aldyh@redhat.com>
 781
 782         PR tree-optimization/34448
 783         PR tree-optimization/34465
 784         * gimplify.c (gimplify_init_constructor): Add new parameter
 785         notify_temp_creation.  Use it.
 786         (gimplify_modify_expr_rhs): Take volatiles into account when
 787         optimizing constructors.
 788         Do not optimize constructors if gimplify_init_constructor will dump to
 789         memory.
 790         * gcc.dg/tree-ssa/pr32901.c: Tests const volatiles.
 791         * gcc.c-torture/compile/pr34448.c: New.
 792
 793 2008-01-04  Jakub Jelinek  <jakub@redhat.com>
 794
 795         PR gcov-profile/34609
 796         * tree-inline.c (declare_return_variable): Set TREE_ADDRESSABLE on
 797         return_slot if result is TREE_ADDRESSABLE.
 798
 799 2008-01-04  Richard Sandiford  <rsandifo@nildram.co.uk>
 800
 801         * config/mips/mips.md (sqrt_condition): Tweak comment.
 802         (recip_condition): Likewise.  Require TARGET_FLOAT64 for DFmode.
 803
 804 2008-01-03  Tom Tromey  <tromey@redhat.com>
 805
 806         PR c/34457
 807         * c-common.c (c_type_hash): Handle VLAs.
 808
 809 2008-01-03  Jan Hubicka  <jh@suse.cz>
 810
 811         PR tree-optimization/31081
 812         * tree-inline.c (remap_ssa_name): Initialize uninitialized SSA vars to
 813         0 when inlining and not inlining to first basic block.
 814         (remap_decl): When var is initialized to 0, don't set default_def.
 815         (expand_call_inline): Set entry_bb.
 816         * tree-inline.h (copy_body_data): Add entry_bb.
 817
 818 2008-01-03  Jakub Jelinek  <jakub@redhat.com>
 819
 820         PR c++/34619
 821         * cgraphunit.c (cgraph_build_static_cdtor): set_cfun back to NULL
 822         before returning.
 823
 824         PR tree-optimization/29484
 825         * tree-inline.c (inline_forbidden_p_2): New function.
 826         (inline_forbidden_p): Disallow inlining if some static var
 827         has an address of a local LABEL_DECL in its initializer.
 828         * doc/extend.texi (Labels as Values): Document &&foo behaviour
 829         vs. inlining.
 830
 831 2008-01-03  Sebastian Pop  <sebastian.pop@amd.com>
 832
 833         PR tree-optimization/34635
 834         * tree-data-ref.c (add_other_self_distances): Make sure that the
 835         evolution step is constant.
 836
 837 2008-01-03  Jakub Jelinek  <jakub@redhat.com>
 838
 839         PR middle-end/34608
 840         * omp-low.c (expand_omp_parallel): Purge dead EH edges in the child fn.
 841
 842 2008-01-02  Richard Sandiford  <rsandifo@nildram.co.uk>
 843
 844         * tree-sra.c (scalarize_init): Insert the generate_element_init
 845         statements after the generate_element_zero statements.
 846
 847 2008-01-02  Richard Guenther  <rguenther@suse.de>
 848
 849         PR middle-end/34093
 850         PR middle-end/31976
 851         * tree-ssa-operands.c (ssa_operand_alloc): Also allocate a buffer
 852         for very large number of operands instead of ICEing.
 853
 854 2008-01-02  Arthur Norman <acn1@cam.ac.uk>
 855
 856         PR target/34013
 857         * gcc/config/i386/i386.c (ix86_expand_prologue): Save red-zone
 858         while stack probing.
 859
 860 2008-01-01  Douglas Gregor  <doug.gregor@gmail.com>
 861
 862         * c-opts.c (sanitize_cpp_opts): Don't warn about "long long" when
 863         in C++0x mode.
 864
 865 2008-01-01  Volker Reichelt  <v.reichelt@netcologne.de>
 866
 867         PR libmudflap/26442
 868         * tree-mudflap.c (mx_register_decls): Guard warning by
 869         !DECL_ARTIFICIAL check.
 870
 871 2008-01-01  Jakub Jelinek  <jakub@redhat.com>
 872
 873         * config/i386/sse.md (sse5_pperm, sse5_pperm_pack_v2di_v4si,
 874         sse5_pperm_pack_v4si_v8hi, sse5_pperm_pack_v8hi_v16qi,
 875         sse5_perm<mode>): Fix constraints.