gcc/ChangeLog

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