gcc/ChangeLog

   1 2006-05-02  Kazu Hirata  <kazu@codesourcery.com>
   2
   3         PR target/27387
   4         * arm.c (arm_output_mi_thunk): Use pc-relative addressing when
   5         -mthumb -fPIC are used.
   6
   7 2006-05-02  Joshua Kinard  <kumba@gentoo.org>
   8
   9         PR target/25871
  10         * gcc/config/mips/mips.h (TRAMPOLINE_TEMPLATE): Avoid 32-bit moves
  11         with 64-bit pointers.
  12
  13 2006-05-02  Paul Brook  <paul@codesourcery.com>
  14
  15         * config/arm/arm.c (add_minipool_forward_ref): Check if insn
  16         and pool overlap.
  17         (create_fix_barrier): Check that a suitable barrier location is
  18         found.
  19         (arm_reorg): Include ftmp->address in allowable range of addresses.
  20
  21 2006-05-02  David Billinghurst <David.Billinghurst@riotinto.com>
  22
  23         PR ada/27366
  24         * ada/env.c (__gnat_clearenv): Use unsetenv() to clear environment
  25         on Cygwin.
  26
  27 2006-05-02  Jakub Jelinek  <jakub@redhat.com>
  28
  29         PR middle-end/27337
  30         * gimplify.c (gimplify_scan_omp_clauses): Handle INDIRECT_REF
  31         around RESULT_DECL for result passed by reference.
  32         (gimplify_expr): Call omp_notice_variable when RESULT_DECL is seen.
  33         * omp-low.c (use_pointer_for_field): Don't look at
  34         DECL_HAS_VALUE_EXPR_P for RESULT_DECLs.
  35         (scan_omp_1): Call remap_decl on RESULT_DECLs.
  36         (lower_rec_input_clauses): Don't allocate VLA memory for the second
  37         time or var for passing by reference for
  38         OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE clauses.  Allow creation of
  39         TREE_ADDRESSABLE variables when passing by reference.
  40
  41         * omp-low.c (dump_omp_region): Fix output formatting.
  42
  43         PR middle-end/27328
  44         * omp-low.c (remove_exit_barrier): Handle NULL exit_bb.
  45         (expand_omp_parallel): Likewise.
  46         * tree-cfg.c (move_sese_region_to_fn): Likewise.
  47
  48         PR middle-end/27325
  49         * omp-low.c (lower_omp_sections): Call maybe_catch_exception
  50         on statement list containing also constructors and destructors.
  51         (lower_omp_single, lower_omp_for, lower_omp_parallel): Likewise.
  52
  53         PR middle-end/27310
  54         * except.c (duplicate_eh_regions): Fix clearing of
  55         cfun->eh->region_array entries.
  56
  57 2006-05-01  DJ Delorie  <dj@redhat.com>
  58
  59         * configure.ac (gcc_cv_nm): Don't use an in-tree nm if
  60         build!=host.
  61         (gcc_cv_objdump): Likewise.
  62         * configure: Regenerated.
  63
  64 2006-05-01  Kazu Hirata  <kazu@codesourcery.com>
  65
  66         PR target/27374
  67         * config/arm/vfp.md (*arm_movdi_vfp): Correct the output
  68         templates for case 3 and 4.
  69
  70 2006-05-01  DJ Delorie  <dj@redhat.com>
  71
  72         * vec.c: Include bconfig.h when appropriate.
  73         * Makefile.in (build/vec.o): Adjust dependencies.
  74         * mkconfig.sh: Make sure config.h isn't used for build machine
  75         compiles.
  76
  77 2006-05-01  Zdenek Dvorak <dvorakz@suse.cz>
  78
  79         * tree-into-ssa.c (phis_to_rewrite, blocks_with_phis_to_rewrite): New
  80         variables.
  81         (mark_phi_for_rewrite): New function.
  82         (insert_phi_nodes_for, mark_use_interesting): Call
  83         mark_phi_for_rewrite.
  84         (rewrite_update_phi_arguments): Traverse only phis in phis_to_rewrite.
  85         (update_ssa): Initialize and free phis_to_rewrite.
  86
  87 2006-05-01  Zdenek Dvorak <dvorakz@suse.cz>
  88
  89         PR rtl-optimization/27291
  90         * loop-doloop.c (add_test, doloop_modify): Handle the case condition is
  91         folded to a constant.
  92
  93 2006-05-01  Zdenek Dvorak <dvorakz@suse.cz>
  94
  95         PR tree-optimization/27283
  96         * tree-ssa-loop-ivopts.c (struct nfe_cache_elt): Store just trees,
  97         not whole # of iteration descriptions.
  98         (niter_for_exit): Return just # of iterations.  Fail if # of iterations
  99         uses abnormal ssa name.
 100         (niter_for_single_dom_exit): Ditto.
 101         (find_induction_variables, may_eliminate_iv): Expect niter_for_exit to
 102         return just the number of iterations.
 103
 104 2006-05-01  Zdenek Dvorak <dvorakz@suse.cz>
 105
 106         PR tree-optimization/27144
 107         * tree-ssa-loop-niter.c (derive_constant_upper_bound): New function.
 108         (record_estimate): Only record constant upper bound.
 109         (infer_loop_bounds_from_undefined): Call
 110         compute_estimated_nb_iterations just once.
 111         (proved_non_wrapping_p): Renamed to ...
 112         (n_of_executions_at_most): ... this.  Expect bound to be a constant.
 113         (convert_step_widening, scev_probably_wraps_p): Call
 114         n_of_executions_at_most instead of proved_non_wrapping_p.
 115         (substitute_in_loop_info): Do not replace values in bounds.
 116         * cfgloop.h (struct nb_iter_bound): Remove "additional" field.  Update
 117         comments.
 118
 119 2006-05-01  Richard Henderson  <rth@redhat.com>
 120
 121         PR c/27358
 122         * c-parser.c (c_parser_skip_to_end_of_block_or_statement): Move after
 123         c_parser_skip_to_pragma_eol.  Convert to switch statement.  Handle
 124         CPP_PRAGMA.
 125
 126 2006-05-01  Roger Sayle  <roger@eyesopen.com>
 127
 128         * c-typeck.c (parser_build_binary_op): Don't call the function
 129         unsigned_conversion_warning to spot operand/result type overflow.
 130         (build_binary_op): Instead, call convert_and_check instead of
 131         convert to report the problem when the operands are promoted.
 132         * c-common.c (unsigned_conversion_warning): Make static.
 133         * c-common.h (unsigned_conversion_warning): Delete prototype.
 134
 135 2006-05-01  Richard Guenther  <rguenther@suse.de>
 136
 137         PR tree-optimization/26726
 138         * tree-ssa-loop-ivopts.c (idx_find_step): Mark source of the
 139         problem ...
 140         (find_interesting_uses_address): ... we work around here
 141         by folding INDIRECT_REFs in the substituted base.
 142
 143 2006-05-01  Diego Novillo  <dnovillo@redhat.com>
 144
 145         * omp-low.c (dump_omp_region): Add newlines.
 146
 147 2006-04-30  Roger Sayle  <roger@eyesopen.com>
 148
 149         * common.opt (Woverflow): New command line option.
 150         * c-common.c (constant_expression_warning): Check warn_overflow.
 151         (overflow_waring): Pass OPT_Woverflow to warning.
 152         (unsigned_conversion_warning): Likewise.
 153         (convert_and_check): Likewise.
 154         * doc/invoke.texi: Document new command line option.
 155
 156 2006-04-30  David Edelsohn  <edelsohn@gnu.org>
 157
 158         * config/rs6000/rs6000.c (rs6000_override_options): Enable
 159         TARGET_NO_FP_IN_TOC for section anchors.
 160         (optimization_options): Enable section anchors for all
 161         non-"Objective" languages.
 162
 163 2006-04-28  Eric Christopher  <echristo@apple.com>
 164
 165         * config/darwin-c.c (darwin_ms_struct): Move this
 166         (darwin_set_default_type_attributes): and this...
 167         * config/darwin.c: ... here.
 168         * config/darwin.h (darwin_ms_struct): Declare.
 169
 170 2006-04-28  Andrew MacLeod  <amacleod@redhat.com>
 171
 172         * tree-ssa-dom.c (propagate_rhs_into_lhs): Fix assert clause.
 173
 174 2006-04-28  Roger Sayle  <roger@eyesopen.com>
 175
 176         PR c/25309
 177         * c-typeck.c (struct spelling): Make I an unsigned HOST_WIDE_INT.
 178         (push_array_bounds): Delete prototype.  Change BOUNDS argument to
 179         an unsigned HOST_WIDE_INT.
 180         (print_spelling): Use HOST_WIDE_INT_PRINT_UNSIGNED to output the
 181         array index.
 182         (really_start_incremental_init): No need to call convert because
 183         bitsize_zero_node is already of type bitsizetype.
 184         (push_init_level): Extract the value of constructor_index as an
 185         unsigned HOST_WIDE_INT quantity, using tree_low_cst.
 186         (process_init_element): Likewise.
 187
 188 2006-04-28  Joseph S. Myers  <joseph@codesourcery.com>
 189
 190         * gcc.c (process_command): Add program name to GCC_EXEC_PREFIX
 191         value before passing to make_relative_prefix.
 192
 193 2006-04-28  Alan Modra  <amodra@bigpond.net.au>
 194
 195         PR middle-end/27260
 196         * builtins.c (expand_builtin_memset): Expand val in original mode.
 197
 198 2006-04-27  Eric Christopher  <echristo@apple.com>
 199
 200         * target-def.h (TARGET_SET_DEFAULT_TYPE_ATTRIBUTES): Bracket
 201         with #ifndef/#endif.
 202         * config/darwin-c.c (darwin_ms_struct): New.
 203         (darwin_pragma_ms_struct): Ditto.
 204         (darwin_set_default_type_attributes): Ditto.
 205         * config/darwin-protos.h (darwin_pragma_ms_struct): Declare.
 206         * config/darwin.h (DARWIN_REGISTER_TARGET_PRAGMAS):
 207         Register ms_struct pragma.
 208         * config/i386/darwin.h (REGISTER_TARGET_PRAGMAS): Declare.
 209         (TARGET_SET_DEFAULT_TYPE_ATTRIBUTES): Ditto.
 210         * config/rs6000/rs6000.c (rs6000_set_default_type_attributes): Call
 211         darwin_set_default_type_attributes if TARGET_MACHO.
 212
 213 2006-04-27  Andrew MacLeod  <amacleod@redhat.com>
 214
 215         PR tree-optimization/26854
 216         * tree-vrp.c (remove_range_assertions): Use new Immuse iterator.
 217         * doc/tree-ssa.texi: Update immuse iterator documentation.
 218         * tree-ssa-math-opts.c (execute_cse_reciprocals_1): Use new iterator.
 219         * tree-ssa-dom.c (propagate_rhs_into_lhs): Use new iterator.
 220         * tree-flow-inline.h (end_safe_imm_use_traverse, end_safe_imm_use_p,
 221         first_safe_imm_use, next_safe_imm_use): Remove.
 222         (end_imm_use_stmt_p): New.  Check for end of immuse stmt traversal.
 223         (end_imm_use_stmt_traverse): New.  Terminate immuse stmt traversal.
 224         (move_use_after_head): New.  Helper function to sort immuses in a stmt.
 225         (link_use_stmts_after): New.  Link all immuses in a stmt consescutively.
 226         (first_imm_use_stmt): New.  Get first stmt in an immuse list.
 227         (next_imm_use_stmt): New.  Get next stmt in an immuse list.
 228         (first_imm_use_on_stmt): New.  Get first immuse on a stmt.
 229         (end_imm_use_on_stmt_p): New.  Check for end of immuses on a stmt.
 230         (next_imm_use_on_stmt): New.  Move to next immuse on a stmt.
 231         * tree-ssa-forwprop.c (forward_propagate_addr_expr): Use new iterator.
 232         * lambda-code.c (lambda_loopnest_to_gcc_loopnest): Use new iterator.
 233         (perfect_nestify): Use new iterator.
 234         * tree-vect-transform.c (vect_create_epilog_for_reduction): Use new
 235         iterator.
 236         * tree-flow.h (struct immediate_use_iterator_d): Add comments.
 237         (next_imm_name): New field in struct immediate_use_iterator_d.
 238         (FOR_EACH_IMM_USE_SAFE, BREAK_FROM_SAFE_IMM_USE): Remove.
 239         (FOR_EACH_IMM_USE_STMT, BREAK_FROM_IMM_USE_STMT,
 240         FOR_EACH_IMM_USE_ON_STMT): New immediate use iterator macros.
 241         * tree-cfg.c (replace_uses_by): Use new iterator.
 242         * tree-ssa-threadedge.c (lhs_of_dominating_assert): Use new iterator.
 243         * tree-ssa-operands.c (correct_use_link): Remove.
 244         (finalize_ssa_use_ops): No longer call correct_use_link.
 245
 246 2006-04-27  Stuart Hastings  <stuart@apple.com>
 247
 248         * config/rs6000/t-darwin (DARWIN_EXTRA_CRT_BUILD_CFLAGS): New.
 249         * config/t-darwin (crt3.o): Use it.
 250         * config/rs6000/rs6000.c (rs6000_initialize_trampoline): Remove
 251         'pmode', use Pmode instead of SImode for SYMBOL_REF.
 252         * config/rs6000/rs6000.md (call_indirect_nonlocal_sysv,
 253         call_nonlocal_sysv, call_value_indirect_nonlocal_sysv,
 254         call_value_nonlocal_sysv): Suffix with the "P" macro for 32/64
 255         support.
 256
 257 2006-04-27  Roger Sayle  <roger@eyesopen.com>
 258
 259         * expmed.c (store_fixed_bit_field): If we're not optimizing for
 260         size, force the intermediate into a new pseudo rather instead of
 261         performing both a bitwise AND and a bitwise IOR in memory.
 262
 263 2006-04-27  Richard Guenther  <rguenther@suse.de>
 264
 265         PR rtl-optimization/26685
 266         * params.def (PARAM_MAX_CSE_INSNS): Correct typo that named
 267         this one "max-flow-memory-locations".
 268
 269 2006-04-27  Richard Guenther  <rguenther@suse.de>
 270
 271         PR tree-optimization/25148
 272         * tree-vrp.c (compare_values): Remove code dealing with
 273         comparisons against type min/max value.  Honour overflow
 274         and negative constants in code dealing with comparisons
 275         of plus and minus expressions.
 276         (value_inside_range): Use fold_binary with LE_EXPR and
 277         GE_EXPR rather than compare_values.
 278
 279 2006-04-27  Dirk Mueller  <dmueller@suse.de>
 280
 281         * config/i386/xmmintrin.h (_mm_shuffle_pi16): Declare
 282         prototype for SSE.
 283
 284 2006-04-26  Kenneth Zadeck <zadeck@naturalbridge.com>
 285
 286         * basic-block.h (safe_insert_insn_on_edge): Removed.
 287         * cfgrtl.c (mark_killed_regs, safe_insert_insn_on_edge): Removed.
 288
 289
 290 2006-04-26  David Edelsohn  <edelsohn@gnu.org>
 291             Paolo Bonzini  <bonzini@gnu.org>
 292
 293         PR middle-end/27282
 294         * combine.c (simplify_and_const_int_1): Use gen_int_mode.
 295         (simplify_and_const_int): Same.
 296
 297 2006-04-26  Aldy Hernandez  <aldyh@redhat.com>
 298
 299         * tree-ssa-dse.c (dse_optimize_stmt): Remove unused variable USE.
 300
 301 2006-04-26  Jakub Jelinek  <jakub@redhat.com>
 302
 303         PR c/26171
 304         * cgraph.c (cgraph_varpool_finalize_decl): Don't call
 305         cgraph_varpool_assemble_pending_decls if -fopenmp, unless
 306         cgraph_global_info_ready.
 307
 308         PR middle-end/26913
 309         * tree-cfg.c (find_outermost_region_in_block): Handle RESX_EXPR.
 310
 311         PR c/25996
 312         * c-parser.c (c_parser_omp_for_loop): Don't call c_finish_omp_for if
 313         either decl or init is error_mark_node.
 314
 315         PR middle-end/25989
 316         * tree-flow.h (struct omp_region): Add sched_kind.
 317         * omp-low.c (expand_parallel_call): Use region->inner->sched_kind
 318         instead of extracting omp for data.
 319         (expand_omp_for): Save extracted sched_kind.
 320
 321 2006-04-25  Roger Sayle  <roger@eyesopen.com>
 322
 323         * expmed.c (store_bit_field): Also check whether the bitsize is
 324         valid for the machine's "insv" instruction before moving the
 325         target into a pseudo for use with the insv.
 326         * config/i386/predicates.md (const8_operand): New predicate.
 327         * config/i386/i386.md (extv, extzv, insv): Use the new
 328         const8_operand predicate where appropriate.
 329
 330 2006-04-25  DJ Delorie  <dj@redhat.com>
 331
 332         * doc/install.texi (Specific): Clarify that this is not a list of
 333         supported hosts or targets.
 334
 335 2006-04-25  Richard Sandiford  <richard@codesourcery.com>
 336
 337         PR rtl-optimization/26725
 338         * cfgrtl.c (rtl_redirect_edge_and_branch_force): Set the source
 339         block's BB_DIRTY flag.
 340
 341 2006-04-25  Geoffrey Keating  <geoffk@apple.com>
 342
 343         * dwarf2out.c (size_of_locs): Don't fill dw_loc_addr if there
 344         are no branches.
 345
 346         * dwarf2asm.c (dw2_asm_output_data): Don't generate RTL just
 347         to print an integer.
 348
 349 2006-04-25  David Edelsohn  <edelsohn@gnu.org>
 350
 351         * varasm.c (align_variable): New function.
 352         (get_block_for_decl): Apply align_variable to DECL before
 353         calculating section information.
 354         (assemble_variable): Split out alignment computation.
 355
 356 2006-04-25  Andreas Krebbel  <krebbel1@de.ibm.com>
 357
 358         * expmed.c (store_bit_field): Handle paradoxical subregs on big endian
 359         machines.
 360
 361 2006-04-25  Bernd Schmidt  <bernd.schmidt@analog.com>
 362
 363         * genmodes.c (make_vector_mode): Allow making VECTOR_MODE_INT of a
 364         MODE_PARTIAL_INT mode.
 365         * config/bfin/bfin-modes.def: Add V2PDI and V2SI.
 366         * config/bfin/bfin.c (print_operand): Add macflag and mac/msu modifiers
 367         for CONST_INTs.
 368         (hard_regno_mode_ok): V2PDImode is ok for accumulators.
 369         * config/bfin/bfin.h (CLASS_MAX_NREGS, HARD_REGNO_NREGS): Handle
 370         V2PDImode.
 371         * config/bfin/predicates.md (const01_operand, vec_shift_operand):
 372         New predicates.
 373         * config/bfin/bfin.md (UNSPEC_MUL_WITH_FLAG, UNSPEC_MAC_WITH_FLAG):
 374         New constants.
 375         (MACFLAG_NONE, MACFLAG_T, MACFLAG_FU, MACFLAG_TFU, MACFLAG_IS,
 376         MACFLAG_IU, MACFLAG_W32, MACFLAG_M, MACFLAG_S2RND, MACFLAG_ISS2,
 377         MACFLAG_IH): Likewise.
 378         (movstricthi_1): Renamed from "*movstricthi".
 379         (load_accumulator, load_accumulator_pair, movsi_insv, insv,
 380         ssaddsi3, sssubsi3, ssnegsi2, signbitssi2, smaxhi3, sminhi3,
 381         abshi2, neghi2, ssneghi2, signbitshi2, movhi_low2high,
 382         movhi_high2high, movhi_low2low, movhi_high2low, movhiv2hi_low,
 383         movhiv2hi_high, composev2hi, movv2hi_hi, movv2hi_hi_low,
 384         movv2hi_hi_high, ssaddhi3, sssubhi3, ssaddv2hi3, sssubv2hi3,
 385         addsubv2hi3, subaddv2hi3, ssaddsubv2hi3, sssubaddv2hi3,
 386         sublohiv2hi3, subhilov2hi3, sssublohiv2hi3, sssubhilov2hi3,
 387         addlohiv2hi3, addhilov2hi3, ssaddlohiv2hi3, ssaddhilov2hi3,
 388         mulhisi_ll, mulhisi_lh, mulhisi_hl, mulhisi_hh, ssnegv2hi2,
 389         ssashiftv2hi3, ssashifthi3, lshiftv2hi3, lshifthi3, packv2hi,
 390         flag_mulhi, flag_mulhisi_parts, flag_machi, flag_machi_acconly,
 391         flag_macinithi, flag_macinit1hi, flag_mulv2hi, flag_mulv2hi_parts,
 392         flag_macv2hi_parts, flag_macv2hi_parts_acconly,
 393         flag_macinitv2hi_parts, flag_macinit1v2hi_parts): New patterns.
 394
 395         * doc/rtl.texi (ss_ashift): Improve wording.
 396
 397 2006-04-24  Geoffrey Keating  <geoffk@apple.com>
 398
 399         * dwarf2out.c (verify_marks_clear): New.
 400         (prune_unused_types): Call verify_marks_clear initially, not
 401         prune_unmark_dies.
 402
 403 2006-04-24  Bernd Schmidt  <bernd.schmidt@analog.com>
 404
 405         * rtl.def (SS_ASHIFT, SS_NEG): New codes.
 406         * doc/rtl.texi: Document them.
 407         * simplify-rtx.c (simplify_unary_operation,
 408         simplify_binary_operation_1): Don't abort when we see them.
 409
 410 2006-04-24  Mark Mitchell  <mark@codesourcery.com>
 411
 412         Revert:
 413         2006-04-23  Mark Mitchell  <mark@codesourcery.com>
 414         * configure.ac: Completely disregard languages that are not
 415         enabled.
 416         * configure: Regenerated.
 417
 418 2006-04-24  Andrew Pinski  <pinskia@gcc.gnu.org>
 419         Richard Guenther  <rguenther@suse.de>
 420
 421         PR tree-optimization/27236
 422         * tree-inline.c (copy_body_r): Make sure to copy
 423         TREE_THIS_VOLATILE flag.
 424
 425 2006-04-24  Richard Guenther  <rguenther@suse.de>
 426
 427         PR middle-end/26869
 428         * tree-complex.c (update_parameter_components): Don't handle
 429         unused parameters which have no default def.
 430
 431 2006-04-24  Andrew Pinski  <pinskia@gcc.gnu.org>
 432         Richard Guenther  <rguenther@suse.de>
 433
 434         PR tree-optimization/27218
 435         * tree-inline.c (expand_call_inline): Strip useless type
 436         conversions for the return slot address.
 437
 438 2006-04-24  Richard Guenther  <rguenther@suse.de>
 439
 440         * cfgloop.h (struct loops): Remove unused field array.  Reorder
 441         state after num.
 442         (LOOP_PREFETCH): Remove.
 443
 444 2006-04-24  Richard Guenther  <rguenther@suse.de>
 445
 446         PR tree-optimization/22525
 447         * value-prof.c (tree_mod_pow2): Remove unnecessary temporary
 448         variable, adjust types of generated expressions.
 449
 450 2006-04-23  H.J. Lu  <hongjiu.lu@intel.com>
 451
 452         * Makefile.in (c-convert.o): Add dependency on $(TARGET_H)
 453         (tree-vect-patterns.o): Likewise.
 454         (jump.o): Likewise.
 455         (cselib.o): Likewise.
 456         (loop-doloop.o): Likewise.
 457         (regclass.o): Likewise.
 458         (reload1.o): Likewise.
 459         (explow.o): Replace target.h with $(TARGET_H).
 460         (ipa-prop.o): Likewise.
 461         (ipa-cp.o): Likewise.
 462         (ipa-inline.o): Likewise.
 463         (reorg.o): Likewise.
 464         (reg-stack.o): Likewise.
 465
 466 2006-04-23  Eric Botcazou  <ebotcazou@adacore.com>
 467
 468         * tree-tailcall.c (pass_tail_recursion): Use gate_tail_calls too.
 469
 470 2006-04-23  Mark Mitchell  <mark@codesourcery.com>
 471
 472         * print-tree.c (print_node): Print DECL_BIT_FIELD_TYPE.
 473
 474         * configure.ac: Completely disregard languages that are not
 475         enabled.
 476         * configure: Regenerated.
 477
 478         PR c++/26534
 479         * c-common.h (c_build_bitfield_integer_type): Declare.
 480         * c-decl.c (c_build_bitfield_integer_type): Move to ...
 481         * c-common.c (c_build_bitfield_integer_type): ... here.
 482
 483 2006-04-23  Roger Sayle  <roger@eyesopen.com>
 484
 485         PR target/21283
 486         * config/fr30/fr30.md (define_split): Avoid calling gen_lowpart on
 487         a SImode SUBREG of a floating point register after no_new_pseudos.
 488
 489 2006-04-23  Roger Sayle  <roger@eyesopen.com>
 490
 491         * config/fr30/fr30.md (addsi_small_int): Use REGNO_PTR_FRAME_P to
 492         identify potentially eliminable registers to additionally catch
 493         VIRTUAL_INCOMING_ARGS_REGNUM.
 494         (addsi3): Update the conditions on when to use addsi_small_int.
 495
 496 2006-04-23  Roger Sayle  <roger@eyesopen.com>
 497
 498         PR target/16641
 499         * config/fr30/fr30.h (GO_IF_LEGITIMATE_ADDRESS): Check REGNO for
 500         STACK_POINTER_RTX and FRAME_POINTER_RTX instead of comparing the
 501         rtx to stack_pointer_rtx or frame_pointer_rtx directly.
 502
 503 2006-04-23  Eric Botcazou  <ebotcazou@adacore.com>
 504
 505         * fold-const.c (range_predecessor): Use operand_equal_p
 506         as the predicate for equality.
 507         (range_successor): Likewise.
 508
 509 2006-04-22  Kazu Hirata  <kazu@codesourcery.com>
 510
 511         Revert:
 512         * config/soft-fp/op-common.h: Fix a typo.
 513
 514 2006-04-22  Frank Ch. Eigler  <fche@redhat.com>
 515
 516         PR libmudflap/26864
 517         * common.opt (flag_mudflap_threads): Overload flag_mudflap.
 518         * tree-mudflap.c (flag_mudflap_threads): Derive from flag_mudflap.
 519
 520 2006-04-22  Kazu Hirata  <kazu@codesourcery.com>
 521
 522         * config/soft-fp/op-common.h, double-int.h, tree-ssa-dom.c:
 523         Fix comment typos.
 524         * doc/tm.texi: Fix a typo.
 525
 526 2006-04-21  Geoffrey Keating  <geoffk@apple.com>
 527
 528         * dwarf2out.c (struct die_struct): Document that die_sib makes
 529         a circular linked list.
 530         (FOR_EACH_CHILD): New.
 531         (reverse_die_lists): Delete.
 532         (reverse_all_dies): Delete.
 533         (add_dwarf_attr): Correct documentation.
 534         (remove_child_with_prev): New.
 535         (remove_child_TAG): Update for change to die_struct, use
 536         remove_child_with_prev.
 537         (add_child_die): Update for change to die_struct.
 538         (splice_child_die): Use remove_child_with_prev and add_child_die.
 539         (print_die): Use FOR_EACH_CHILD.
 540         (die_checksum): Likewise.
 541         (assign_symbol_names): Likewise.
 542         (output_location_lists): Likewise.
 543         (build_abbrev_table): Likewise.
 544         (calc_die_sizes): Likewise.
 545         (mark_dies): Likewise.
 546         (unmark_dies): Likewise.
 547         (unmark_all_dies): Likewise.
 548         (output_die): Likewise.
 549         (prune_unused_types_mark): Likewise.
 550         (prune_unused_types_walk): Likewise.
 551         (same_die_p): Update for change to die_struct.
 552         (break_out_includes): Likewise.
 553         (prune_unused_types_prune): Likewise.
 554         (add_sibling_attributes): Use FOR_EACH_CHILD, simplify logic.
 555         (prune_unmark_dies): Use FOR_EACH_CHILD, don't clear die_mark if
 556         it's already clear.
 557         (dwarf2out_finish): Don't call reverse_all_dies.
 558
 559 2006-04-21  Eric Christopher  <echristo@apple.com>
 560
 561         * df-core.c, tree-outof-ssa.c, config/i386/i386.c: Fix typos
 562         in comments and function names.
 563
 564 2006-04-21  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
 565
 566         PR c/25875
 567         * c-typeck.c (digest_init): Robustify.
 568
 569         * c-typeck.c (pop_init_level): Simplify.
 570
 571 2006-04-21  Steve Ellcey  <sje@cup.hp.com>
 572
 573         * config/pa/t-pa64: Add dependencies on $(GCC_PASSES).
 574
 575 2006-04-21  Paul Brook  <paul@codesourcery.com>
 576
 577         * config/arm/arm.c (arm_override_options): Error on iWMMXt and
 578         hardware floating point.
 579
 580 2006-04-21  David Edelsohn  <edelsohn@gnu.org>
 581
 582         * config/rs6000/rs6000.h (REG_CLASS_CONTENTS): Add sfp to
 583         NON_FLOAT_REGS.
 584
 585 2006-04-21  Nick Clifton  <nickc@redhat.com>
 586
 587         * config/sh/t-elf (EXTRA_MULTILIB_PARTS): Include
 588         OPT_EXTRA_PARTS.
 589
 590 2006-04-21  Alan Modra  <amodra@bigpond.net.au>
 591
 592         PR target/27230
 593         * config/rs6000/rs6000.c (rs6000_output_function_epilogue): Use
 594         C++ lang type in traceback table for Objective-C++.
 595
 596         * config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Update comment.
 597
 598 2006-04-20  H.J. Lu  <hongjiu.lu@intel.com>
 599
 600         * config/i386/i386.c (asm_preferred_eh_data_format): Reformat.
 601
 602 2006-04-20  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
 603
 604         PR mudflap/26789
 605         * tree-mudflap.c (mudflap_finish_file): Skip function when there
 606         were errors.  Remove check for erroneous objects.
 607
 608 2006-04-20  Jeff Law  <law@redhat.com>
 609
 610         PR tree-optimization/26854
 611         * tree-ssa-dse.c (dse_optimize_stmt): Avoid num_imm_uses when
 612         checking for zero or one use.
 613         * tree-ssa-dom.c (propagate_rhs_into_lhs): Similarly.
 614         * tree-cfgcleanup.c (merge_phi_nodes): Similarly.
 615         * tree-ssa-reassoc.c (negate_value): Similarly.
 616         (reassociate_bb): Similarly.
 617
 618 2006-04-20  Jakub Jelinek  <jakub@redhat.com>
 619
 620         * c-pretty-print.c (pp_c_direct_abstract_declarator): Print
 621         TYPE_MAX_VALUE (TYPE_DOMAIN (t)) + 1 for ARRAY_TYPE rather
 622         than plain TYPE_MAX_VALUE (TYPE_DOMAIN (t)).
 623
 624 2006-04-20  Alan Modra  <amodra@bigpond.net.au>
 625
 626         * config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Consume all
 627         fp regs if the last fp arg doesn't fit in regs.
 628
 629 2006-04-20  Kaz Kojima  <kkojima@gcc.gnu.org>
 630
 631         PR target/27182
 632         * config/sh/sh.md (movsicc_true+3): Tweak condition for the case
 633         that the last insn has the REG_INC note.
 634
 635 2006-04-19  Carlos O'Donell  <carlos@codesourcery.com>
 636             Nathan Sidwell  <nathan@codesourcery.com>
 637
 638         PR c/26774
 639         * stor-layout.c (update_alignment_for_field): Do not align
 640         ERROR_MARK nodes.
 641         (place_union_field): Place union field at the start of the union.
 642         (place_field): Move ERROR_MARK check later, and use the current
 643         allocation position to maintain monotonicity.
 644
 645 2006-04-19  Zdenek Dvorak <dvorakz@suse.cz>
 646
 647         * dominance.c: Include timevar.h.
 648         (calculate_dominance_info): Use TV_DOMINANCE.
 649         * timevar.def (TV_DOMINANCE): New timevar.
 650         * Makefile.in (dominance.o): Add TIMEVAR_H dependency.
 651
 652 2006-04-19  Andreas Krebbel  <krebbel1@de.ibm.com>
 653
 654         PR rtl-optimization/14261
 655         * ifcvt.c (noce_emit_move_insn): Call store_bit_field if the resulting
 656         move would be an INSV insn.
 657         (noce_process_if_block): Don't optimize if the destination is a
 658         ZERO_EXTRACT which can't be handled by noce_emit_move_insn.
 659
 660 2006-04-19  Andreas Krebbel  <krebbel1@de.ibm.com>
 661
 662         * config/s390/s390.md: Add comments with the instructions emitted
 663         by an insn pattern if macros are used.
 664
 665 2006-04-19  Alan Modra  <amodra@bigpond.net.au>
 666
 667         PR rtl-optimization/26026
 668         * fold-const.c (fold_binary): Optimize div and mod where the divisor
 669         is a known power of two shifted left a variable amount.
 670
 671 2006-04-18  Geoffrey Keating  <geoffk@apple.com>
 672
 673         * dwarf2out.c (prune_unused_types_update_strings): Don't add strings
 674         to hash table twice when the debug_str section has SECTION_MERGE.
 675
 676 2006-04-18  Joseph S. Myers  <joseph@codesourcery.com>
 677
 678         * config/soft-fp: New directory.  From glibc.
 679         * config/soft-fp/t-softfp: New.
 680         * config/soft-fp/README: New.
 681         * mklibgcc.in: Handle LIB2FUNCS_EXCLUDE.
 682         * Makefile.in (LIB2FUNCS_EXCLUDE, SFP_MACHINE): New.
 683         (libgcc.mk): Pass LIB2FUNCS_EXCLUDE.
 684         (LIBGCC_DEPS): Add $(SFP_MACHINE).
 685         * config.gcc: Use rs6000/t-fprules-fpbit or
 686         rs6000/t-fprules-softfp and soft-fp/t-softfp together with
 687         rs6000/t-fprules.
 688         * config/rs6000/sfp-machine.h: New.  Based on glibc.
 689         * config/rs6000/t-fprules-fpbit, config/rs6000/t-fprules-softfp:
 690         New.
 691         * config/rs6000/t-fprules: Remove fp-bit rules.
 692         * config/rs6000/t-ppccomm (LIB2FUNCS_EXTRA): Use +=.
 693         * config/rs6000/t-linux64: Likewise.  Remove duplicates from
 694         LIB2FUNCS_EXTRA.  Remove fp-bit rules.
 695         (softfp_wrap_start, softfp_wrap_end): New.
 696
 697 2006-04-18  DJ Delorie  <dj@redhat.com>
 698
 699         * config/m32c/m32c.h (PTRDIFF_TYPE): Define.
 700
 701 2006-04-18  Devang Patel  <dpatel@apple.com>
 702
 703         * doc/invoke.texi (-Wuninitialized): Clarify -O connection.
 704
 705 2006-04-18  Nick Clifton  <nickc@redhat.com>
 706
 707         * config/sh/t-symbian: Add rule to build sh-c.o
 708         * config/sh/symbian.c (sh_symbian_mark_dllexport): Replace use
 709         of DECL_NON_ADDR_CONST_P with DECL_DLLIMPORT_P.
 710         (sh_symbian_encode_section_info): Likewise.
 711
 712 2006-04-18  Andreas Krebbel  <krebbel1@de.ibm.com>
 713
 714         * builtins.c (expand_builtin_strcmp): Cover label definition of
 715         do_libcall with HAVE_cmpstrnsi.
 716
 717 2006-04-18  Kazu Hirata  <kazu@codesourcery.com>
 718
 719         * function.c (temp_slots_at_level, max_slot_level): Use VEC
 720         instead of VARRAY.
 721         * function.h (temp_slot_p): New.
 722         (function): Change the type of x_used_temp_slots to
 723         VEC(temp_slot_p,gc) *.
 724
 725 2006-04-18  Nick Clifton  <nickc@redhat.com>
 726
 727         * config/mmix/mmix.h (OPTIMIZATION_OPTIONS): Remove reference to
 728         flag_strength_reduce.
 729
 730         * doc/tm.texi (TARGET_SECTION_TYPE_FLAGS): Fix typo.
 731
 732 2006-04-18  Paolo Bonzini  <bonzini@gnu.org>
 733
 734         PR target/27117
 735
 736         Partial revert of revision 112637
 737         2006-04-03  Paolo Bonzini  <bonzini@gnu.org>
 738                     Dale Johannesen  <dalej@apple.com>
 739
 740         PR target/19653
 741         * regclass.c (struct reg_pref): Update documentation.
 742         (regclass): Set prefclass to NO_REGS if memory is the best option.
 743         (record_reg_classes): Cope with a prefclass set to NO_REGS.
 744
 745 2006-04-18  Paolo Bonzini  <bonzini@gnu.org>
 746
 747         PR tree-optimization/26821
 748         * tree-ssa-math-opts.c (get_constant_one): New.
 749         (insert_reciprocals): Use it.
 750
 751 2006-04-17  Geoffrey Keating  <geoffk@apple.com>
 752
 753         * dwarf2out.c (free_AT): Delete.
 754         (remove_AT): Update string ref counts.
 755         (remove_child_TAG): Don't call free_die.
 756         (free_die): Delete.
 757         (break_out_includes): Don't call free_die on DW_TAG_GNU_BINCL
 758         or DW_TAG_GNU_EINCL.
 759         (prune_unused_types_walk_attribs): Reset string refcounts.
 760         (prune_unused_types_update_strings): New.
 761         (prune_unused_types_prune): Don't make unnecessary stores.  Don't
 762         call free_die.  Do call prune_unused_types_update_strings.
 763         (prune_unused_types): Empty debug_str_hash.
 764
 765 2006-04-17  Roger Sayle  <roger@eyesopen.com>
 766
 767         * expr.c (expand_assignment): Optimize away no-op moves where the
 768         source and destination are equal and have no side-effects.
 769
 770 2006-04-17  Richard Guenther  <rguenther@suse.de>
 771
 772         PR target/26826
 773         * reload.c (push_reload): Guard calls to get_secondary_mem
 774         for memory subregs.
 775
 776 2006-04-16  Kazu Hirata  <kazu@codesourcery.com>
 777
 778         * alias.c (reg_base_value, old_reg_base_value): Change the
 779         type to VEC(rtx,gc) *.
 780         (REG_BASE_VALUE, find_base_value, record_set,
 781         init_alias_analysis): Use VEC instead of VARRAY.
 782
 783         * alias.c (alias_sets): Change the type to
 784         VEC(alias_set_entry,gc) *.
 785         (get_alias_set_entry, new_alias_set, record_alias_subset): Use
 786         VEC instead of VARRAY.
 787         (last_alias_set): Remove.
 788
 789         * cgraph.h (cgraph_edge_p): New.
 790         Update the prototype of cgraph_function_versioning.
 791         * cgraphunit.c (cgraph_copy_node_for_versioning,
 792         cgraph_function_versioning): Use VEC instead of VARRAY.
 793         * ipa-cp.c (ipcp_insert_stage): Likewise.
 794
 795 2006-04-16  Roger Sayle  <roger@eyesopen.com>
 796
 797         PR target/26961
 798         * fold-const.c (fold_ternary): When converting "A ? B : C" into either
 799         "A op B" or "A op C", we may need to convert A to the type of B and C.
 800
 801 2006-04-16  Adam Nemet  <anemet@caviumnetworks.com>
 802
 803         * target.h (struct gcc_target): Add mode_rep_extended.
 804         * rtlanal.c (num_sign_bit_copies_in_rep): New global.
 805         (init_num_sign_bit_copies_in_rep): Initialize it using
 806         mode_rep_extended.
 807         (truncate_to_mode): Use it.
 808         (init_rtlanal): Call init_num_sign_bit_copies_in_rep.
 809         * targhooks.h (default_mode_rep_extended): Declare it.
 810         * targhooks.c (default_mode_rep_extended): Define it.
 811         * target-def.h (TARGET_MODE_REP_EXTENDED): New macro.  Default to
 812         default_mode_rep_extended.
 813         (TARGET_INITIALIZER): Include it.
 814         * doc/tm.texi (Misc): Document it.
 815         * config/mips/mips.c (TARGET_TRUNCATED_TO_MODE): Override it.
 816         (mips_truncated_to_mode): New function.
 817
 818 2006-04-16  Roger Sayle  <roger@eyesopen.com>
 819
 820         PR middle-end/25474
 821         * expr.c (compress_float_constant): Copy the narrow constant into
 822         a new pseudo before extending it to its final width.
 823
 824 2006-04-16  Roger Sayle  <roger@eyesopen.com>
 825             Andrew Pinski  <pinskia@gcc.gnu.org>
 826             Dale Johannesen  <dalej@apple.com>
 827
 828         PR target/24076
 829         * config/i386/i386.c (ix86_expand_vector_init_duplicate): Add
 830         special case code to implement V8HImode and V16QImode with SSE2.
 831
 832 2006-04-15  Roger Sayle  <roger@eyesopen.com>
 833
 834         * config/i386/i386.c (ix86_va_start): Ensure all integer constant
 835         trees are constructed with a suitable tree type.
 836
 837 2006-04-15  Roger Sayle  <roger@eyesopen.com>
 838
 839         * tree.c (integer_zerop): Ignore TREE_CONSTANT_OVERFLOW.
 840         (integer_onep): Likewise.
 841         (integer_all_onesp): Likewise.
 842         (integer_pow2p): Likewise.
 843         (integer_nonzerop): Likewise.
 844         (real_zerop): Likewise.
 845         (real_onep): Likewise.
 846         (real_twop): Likewise.
 847         (real_minus_onep): Likewise.
 848         (int_size_in_bytes): Likewise.
 849         (host_integerp): Likewise.
 850
 851 2006-04-15  Kazu Hirata  <kazu@codesourcery.com>
 852
 853         * cfgcleanup.c, config/dfp-bit.c, expr.c, fold-const.c,
 854         jump.c, mips-tfile.c, omp-low.c, sched-int.h,
 855         tree-ssa-loop-prefetch.c, tree-vrp.c: Fix comment typos.
 856
 857         * tree-ssa-structalias.h (alias_info): Remove num_references.
 858
 859 2006-04-15  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
 860
 861         * pa.md (output_bb patterns): Shorten long branch alternatives by 4.
 862         (output_bvb patterns): Likewise.
 863         * pa.c (output_bb): Use 'bb' insn for long branch case.
 864         (output_bvb): Likewise use '{bvb|bb}' for long branch case.
 865         (output_dbra): Use '{comb|cmpb}' for long branch case for alternative
 866         1.  Correct length operand for alternatives 1 and 2.
 867         (output_movb): Use '{comb|cmpb}' for long branch case for alternatives
 868         1, 2 and 3.  Correct length operand for alternatives 1, 2 and 3.
 869
 870 2006-04-14  Roger Sayle  <roger@eyesopen.com>
 871
 872         * tree-cfg.c (make_edges, make_omp_sections_edges, move_stmt_r,
 873         is_ctrl_altering_stmt): Reinstate RTH's changes from r112935 that
 874         were accidentally reverted by r112959.
 875
 876 2006-04-15  Jakub Jelinek  <jakub@redhat.com>
 877
 878         PR middle-end/26823
 879         * except.h (eh_region_outermost): New prototype.
 880         * except.c (eh_region_outermost): New function.
 881         * tree-cfg.c (find_outermost_region_in_block): Use it.
 882
 883 2006-04-14  Kazu Hirata  <kazu@codesourcery.com>
 884
 885         * local-alloc.c (rest_of_handle_local_alloc): Use VEC instead
 886         of VARRAY.
 887         * reload1.c (reg_equiv_memory_loc_varray): Rename to
 888         reg_equiv_memory_loc_vec.  Change the type to VEC(rtx,gc) *.
 889         (init_reload, reload): Use VEC instead of VARRAY.
 890         * reload.h: Update the prototype for
 891         reg_equiv_memory_loc_varray.
 892
 893 2006-04-14  Alexey Starovoytov  <alexey.starovoytov@sun.com>
 894             Eric Botcazou  <ebotcazou@libertysurf.fr>
 895
 896         * config/sparc/sparc.c (emit_and_preserve): Allocate space for the
 897         register save area.
 898
 899 2005-04-13  Uros Bizjak  <uros@kss-loka.si>
 900
 901         PR middle-end/27134
 902         * builtins.c (expand_builtin_int_roundingfn): Use expand_normal()
 903         to expand fallback builtin function call.
 904
 905 2006-04-14  Alan Modra  <amodra@bigpond.net.au>
 906
 907         PR middle-end/27095
 908         * builtins.c: (expand_builtin_memset): Stabilize args before expansion
 909         and emit libcall here in case the builtin fails.
 910         (expand_builtin_strcmp): Always emit the libcall here on failure.
 911
 912 2006-04-14  Kazu Hirata  <kazu@codesourcery.com>
 913
 914         * basic-block.h (REG_BASIC_BLOCK): Use VEC instead of VARRAY.
 915         * flow.c (reg_n_info): Change the type to
 916         VEC(reg_info_p,heap) *.
 917         * regclass.c (allocate_reg_info, free_reg_info): Use VEC
 918         instead of VARRAY.
 919         * regs.h (reg_info_p): New.
 920         (REG_N_REFS, REG_FREQ, REG_N_SETS, REG_N_DEATHS,
 921         REG_N_CALLS_CROSSED, REG_N_THROWING_CALLS_CROSSED,
 922         REG_LIVE_LENGTH, REGNO_FIRST_UID, REGNO_LAST_UID): Use VEC
 923         instead of VARRAY.
 924
 925 2006-04-13  Eric Botcazou  <ebotcazou@adacore.com>
 926
 927         * params.def (PARAM_MAX_SCHED_READY_INSNS): New parameter,
 928         defaulting to 100.
 929         * params.h (MAX_SCHED_READY_INSNS): New macro.
 930         * haifa-sched.c: (queue_to_ready): Re-queue insns for the next cycle
 931         past MAX_SCHED_READY_INSNS during the first scheduling pass.
 932         (schedule_block): Delay insns past MAX_SCHED_READY_INSNS in
 933         the ready list for 1 cycle during the first scheduling pass.
 934         * doc/invoke.texi (--param): New parameter max-sched-ready-insns.
 935
 936 2006-04-13  Richard Henderson  <rth@redhat.com>
 937
 938         PR libgomp/26651
 939         * gimple-low.c (lower_omp_directive): Remove dead code.
 940         (lower_stmt): Do nothing except for openmp, except for OMP_PARALLEL.
 941         * gimplify.c (gimplify_expr): Update for OMP_RETURN, OMP_CONTINUE.
 942         * omp-low.c (struct omp_region): Move to tree-flow.h.
 943         (root_omp_region): Export.
 944         (omp_regions, lookup_omp_region): Remove.
 945         (determine_parallel_type): Update for struct omp_region changes.
 946         (dump_omp_region): Dump regions with block numbers.
 947         (new_omp_region): Take type and block instead of stmt; malloc
 948         instead of ggc.
 949         (free_omp_region_1, free_omp_regions): New.
 950         (expand_parallel_call): Take entry_stmt as argument; update for
 951         changes to omp_region.
 952         (remove_exit_barrier): Rewrite to update OMP_RETURN_NOWAIT.
 953         (remove_exit_barriers): New.
 954         (expand_omp_parallel): Update for struct omp_region changes.
 955         (expand_omp_synch): Likewise.
 956         (expand_omp): Likewise.
 957         (expand_omp_for_static_nochunk): Likewise; update for OMP_CONTINUE.
 958         (expand_omp_for_static_chunk): Likewise.
 959         (expand_omp_for): Likewise.
 960         (expand_omp_for_generic): Likewise; emit the proper GOMP_loop_end call.
 961         (expand_omp_sections): Similarly, with GOMP_sections_end.
 962         (expand_omp_single): New.
 963         (build_omp_regions_1): Update for OMP_CONTINUE.
 964         (execute_expand_omp): Call remove_exit_barriers, free_omp_regions.
 965         (lower_omp_sections): Expand with OMP_CONTINUE, do not collect
 966         OMP_SECTIONS_SECTIONS.
 967         (lower_omp_single_simple): Don't emit barrier here.
 968         (lower_omp_single_copy): Likewise.
 969         (lower_omp_single): Fix bindings, and lower to straightline now.
 970         (lower_omp_master, lower_omp_ordered): Likewise.
 971         (lower_omp_critical): Likewise.
 972         (lower_omp_for): Likewise.  Emit OMP_CONTINUE.
 973         * tree-cfg.c (make_edges): Collect an omp_region tree, use it for
 974         omp edges, free it afterward.
 975         (make_omp_sections_edges): Remove.
 976         (is_ctrl_altering_stmt): Don't bother checking flag_openmp.
 977         (move_stmt_r): Handle OMP_CONTINUE.
 978         * tree-flow.h (struct omp_region): Move from omp-low.c.  Switch
 979         statement pointers to basic blocks.  Add type member.
 980         (root_omp_region, new_omp_region, free_omp_regions): Declare.
 981         * tree-gimple.c (is_gimple_stmt): Handle OMP_RETURN, OMP_CONTINUE.
 982         * tree-inline.c (estimate_num_insns_1): Likewise.
 983         * tree-pretty-print.c (dump_generic_node): Likewise.
 984         * tree-ssa-operands.c (get_expr_operands): Likewise.
 985         * tree.def (OMP_SECTIONS): Remove OMP_SECTIONS_SECTIONS operand.
 986         (OMP_RETURN): Rename from OMP_RETURN_EXPR.
 987         (OMP_CONTINUE): New.
 988         * tree.h (OMP_DIRECTIVE_P): Add OMP_CONTINUE.
 989         (OMP_SECTIONS_SECTIONS): Remove.
 990         (OMP_SECTION_LAST): New.
 991         (OMP_RETURN_NOWAIT): New.
 992
 993 2006-04-13  Roger Sayle  <roger@eyesopen.com>
 994
 995         * fold-const.c (native_encode_vector, native_interpret_real):
 996         Correct obvious mistakes in the previous check-in.
 997
 998 2006-04-13  Roger Sayle  <roger@eyesopen.com>
 999
1000         * fold-const.c (native_encode_expr): New function to encode
1001         the target representation of an INTEGER_CST, REAL_CST, COMPLEX_CST
1002         or VECTOR_CST into a specified buffer.
1003         (native_encode_int): New function.
1004         (native_encode_real): New function.
1005         (native_encode_complex): New function.
1006         (native_encode_vector): New function.
1007         (native_interpret_expr): Inverse of native_encode_expr to convert
1008         a target representation into an INTEGER_CST, REAL_CST etc...
1009         (native_interpret_int): New function.
1010         (native_interpret_real): New function.
1011         (native_interpret_complex): New function.
1012         (native_interpret_vector): New function.
1013         (fold_view_convert_expr): New function to constant fold/evaluate
1014         a VIEW_CONVERT_EXPR of a suitable constant expression.
1015         (fold_unary) <VIEW_CONVERT_EXPR>: Call fold_view_convert_expr.
1016         Change call of build1 to fold_build1 when constructing a
1017         VIEW_CONVERT_EXPR.
1018
1019 2006-04-13  Paolo Bonzini  <bonzini@gnu.org>
1020             Ulrich Weigand  <uweigand@de.ibm.com>
1021
1022         PR target/27006
1023         * config/rs6000/rs6000.h (EASY_VECTOR_15_ADD_SELF): Require n
1024         to be even.
1025
1026 2006-04-13  Alan Modra  <amodra@bigpond.net.au>
1027
1028         PR target/26459
1029         * config/rs6000/rs6000.c (rs6000_legitimize_reload_address): Don't
1030         optimize to lo_sum for DFmode if !TARGET_FPRS.
1031
1032 2006-04-12  Kazu Hirata  <kazu@codesourcery.com>
1033
1034         * tree-ssa-alias.c (set_initial_properties, init_alias_info,
1035         delete_alias_info, compute_flow_sensitive_aliasing,
1036         group_aliases): Use VEC instead of VARRAY.
1037         * tree-ssa-structalias.c (update_alias_info): Likewise.
1038         * tree-ssa-structalias.h (alias_info): Change the type of
1039         processed_ptrs to VEC(tree,heap) *.
1040
1041 2006-04-12  J"orn Rennecke <joern.rennecke@st.com>
1042
1043         PR target/27060
1044         * config/sh/lib1funcs.h: New file, broken out of:
1045         * config/sh/lib1funcs.asm.
1046         * config/sh/lib1funcs.h (DR00, DR01, DR20, DR21, DR40, DR41):
1047         New macros.
1048         * config/sh/lib1funcs.asm (udivsi3_i4): Use them.
1049         * config/sh/lib1funcs-Os-4-200.asm: New file.
1050         * config/sh/embed-elf.h (LIBGCC_SPEC): Use -lgcc-Os-4-200.
1051         * config/sh/t-sh (OPT_EXTRA_PARTS): New variable.
1052         (EXTRA_MULTILIB_PARTS): Include it.
1053         ($(T)sdivsi3_i4i-Os-4-200.o): New rule.
1054         ($(T)udivsi3_i4i-Os-4-200.o, $(T)libgcc-Os-4-200.a): Likewise.
1055         * config/sh/t-superh (EXTRA_MULTILIB_PARTS): Include OPT_EXTRA_PARTS.
1056         * config/sh/sh.h (OVERRIDE_OPTIONS): Recognize -mdiv=call-table for
1057         TARGET_SH2.
1058
1059 2006-04-12  Kazu Hirata  <kazu@codesourcery.com>
1060
1061         * Makefile.in (TREE_SSA_LIVE_H): Add vecprim.h.
1062         * tree-ssa-live.c (tpa_init, tpa_remove_partition, tpa_delete,
1063         tpa_compact, root_var_init, type_var_init): Use VEC instead of
1064         VARRAY.
1065         * tree-ssa-live.h: Include vecprim.h.
1066         (tree_partition_associator_d): Change the type of
1067         first_partition to VEC(int,heap) *.
1068         (tpa_first_partition): Use VEC instead of VARRAY.
1069
1070         * Makefile.in (GTFILES): Move functions.h after tree.h.
1071         * function.c (reset_block_changes, record_block_change,
1072         check_block_change, free_block_changes): Use VEC instead of
1073         VARRAY.
1074         * function.h (function): Change the type of
1075         ib_boundaries_block to VEC(tree,gc) *.
1076         * tree-inline.c (copy_cfg_body): Initialize
1077         ib_boundaries_block to NULL instead of (varray_type) 0.
1078
1079 2006-04-12  Roger Sayle  <roger@eyesopen.com>
1080
1081         * expr.c (emit_group_store): Correct operand order in call to
1082         subreg_lowpart_offset.  Always create paradoxical SUBREGs with
1083         a SUBREG_BYTE of zero.
1084
1085 2006-04-12  Richard Guenther  <rguenther@suse.de>
1086
1087         * profile.c (compute_branch_probabilities): Remove code
1088         encapsulated in !ir_type (), which are remanents of the
1089         removed RTL profiling code.
1090         * rtl-profile.c: Remove.
1091
1092 2006-04-12  Alan Modra  <amodra@bigpond.net.au>
1093
1094         * config/rs6000/rs6000.c (rs6000_mixed_function_arg): Update
1095         magic NULL_RTX comment.
1096         (function_arg): Store entire fp arg to mem if any part should go
1097         on stack.
1098         (rs6000_arg_partial_bytes): Adjust for above change.
1099
1100 2006-04-11  Roger Sayle  <roger@eyesopen.com>
1101
1102         * dwarf2out.c (output_call_frame_info): Create debug_frame_section
1103         if it hasn't been initialized by dwarf2out_init.
1104
1105 2006-04-11  John David Anglin  <dava.anglin@nrc-cnrc.gc.ca>
1106
1107         * pa.md (MAX_12BIT_OFFSET, MAX_17BIT_OFFSET): Define and use new
1108         symbolic constants in branch patterns.
1109
1110 2006-04-11  Roger Sayle  <roger@eyesopen.com>
1111
1112         * caller-save.c: #include "addresses.h" after #include "tm_p.h".
1113
1114 2006-04-11  Richard Sandiford  <richard@codesourcery.com>
1115
1116         PR rtl-optimization/27073
1117         * gcse.c (try_replace_reg): Revert last change.  Continue to search
1118         for both REG_EQUAL and REG_EQUIV notes, but only perform replacements
1119         on the former.
1120
1121 2006-04-11  Eric Botcazou  <ebotcazou@libertysurf.fr>
1122
1123         * config/sparc/sparc.c (function_arg_slotno) <BLKmode>: Handle
1124         aggregate types other than record and union types.
1125         (function_arg): Likewise.
1126         (function_arg_pass_by_reference): In 64-bit mode, return 0 for
1127         small arrays.
1128         (function_value): In 64-bit mode, return objects that require it
1129         in FP registers.
1130
1131 2006-04-11  Roger Sayle  <roger@eyesopen.com>
1132
1133         * dwarf2out.c (premark_used_types): Remove problematic prototype.
1134
1135 2006-04-11  Jakub Jelinek  <jakub@redhat.com>
1136
1137         * gcc.c (LINK_COMMAND_SPEC): Move link_gomp after %o.
1138
1139 2006-04-03  Jeff Law  <law@redhat.com>
1140
1141         PR/27087
1142         * tree-ssa-copy.c (may_propagate_copy): Test flow sensitive
1143         alias information too.
1144
1145 2006-04-10  Mike Frysinger  <vapier@gentoo.org>
1146
1147         * gcc/Makefile.in (gcc-cross): Add $(exeext) to target name.
1148
1149 2006-04-10  Aldy Hernandez  <aldyh@redhat.com>
1150
1151         PR/21391
1152         * dwarf2out.c (struct die_struct): Add die_perennial_p field.
1153         (premark_used_types_helper): New.
1154         (premark_used_types): New.
1155         (gen_subprogram_die): Call premark_used_types.
1156         (prune_unused_types_walk): Do not prune perennial dies.
1157         * function.c (used_types_insert): New.
1158         * function.h (struct function): Add used_types_hash field.
1159         (used_types_insert): Add prototype.
1160         * Makefile.in (FUNCTION_H): Depend on HASHTAB_H.
1161         * c-parser.c (c_parser_cast_expression): Save casted types in used
1162         types hash table.
1163
1164 2006-04-11  Mark Mitchell  <mark@codesourcery.com>
1165
1166         PR target/26459
1167         * config/rs6000/e500-double.h (SUB3TARGET_OVERRIDE_OPTIONS): Test
1168         rs6000_explicit_options.float_gprs.
1169
1170 2006-04-10  Roger Sayle  <roger@eyesopen.com>
1171
1172         * config/i386/i386.c (ix86_expand_vector_init_one_nonzero): Renamed
1173         from ix86_expand_vector_init_low_nonzero.  Take an additional
1174         one_var argument indicating which element is non-zero.  Support
1175         one_var != 0 for V4SFmode and V4SImode by permuting the result.
1176         (ix86_expand_vector_init): Call ix86_expand_vector_init_one_nonzero
1177         with one_var instead of ix86_expand_vector_init_low_nonzero.
1178
1179 2006-04-10  Kazu Hirata  <kazu@codesourcery.com>
1180
1181         * Makefile.in (tree-into-ssa.o, tree-outof-ssa.o,
1182         tree-ssa-live.o, tree-ssa-alias.o, function.o, df-problems.o,
1183         global.o, cfglayout.o, lambda-code.o, reg-stack.o,
1184         build/genextract.o): Depend on vecprim.h.
1185         * cfglayout.c, df-problems.c, function.c, genextract.c,
1186         global.c, lambda-code.c, reg-stack.c, tree-into-ssa.c,
1187         tree-outof-ssa.c, tree-ssa-alias.c, tree-ssa-live.c: Include
1188         vecprim.h.
1189         * vecprim.h: New.
1190
1191 2006-04-10  Geoffrey Keating  <geoffk@apple.com>
1192
1193         * dwarf2out.c (struct dw_attr_struct): Remove dw_attr_next.
1194         Declare VECs of this type.
1195         (struct die_struct): Make field die_attr a VEC of dw_attr_struct.
1196         (remove_children): Delete.
1197         (add_dwarf_attr): Use VEC routines.
1198         (add_AT_flag): Update for changes to add_dwarf_attr.
1199         (add_AT_int): Likewise.
1200         (add_AT_unsigned): Likewise.
1201         (add_AT_long_long): Likewise.
1202         (add_AT_vec): Likewise.
1203         (add_AT_string): Likewise.
1204         (add_AT_die_ref): Likewise.
1205         (add_AT_fde_ref): Likewise.
1206         (add_AT_loc): Likewise.
1207         (add_AT_loc_list): Likewise.
1208         (add_AT_addr): Likewise.
1209         (add_AT_lbl_id): Likewise.
1210         (add_AT_lineptr): Likewise.
1211         (add_AT_macptr): Likewise.
1212         (add_AT_offset): Likewise.
1213         (add_AT_range_list): Likewise.
1214         (get_AT): Use VEC_iterate.
1215         (remove_AT): Use VEC_ordered_remove.
1216         (free_die): Fold remove_children into here; have it use VEC_iterate.
1217         (print_die): Use VEC_iterate on attrs.
1218         (reverse_die_lists): Don't reverse attr lists.
1219         (die_checksum): Use VEC_iterate on attrs.
1220         (same_die_p): Likewise.
1221         (output_location_lists): Likewise.
1222         (build_abbrev_table): Likewise.
1223         (size_of_die): Likewise.
1224         (unmark_all_dies): Likewise.
1225         (output_abbrev_section): Likewise.
1226         (output_die): Likewise.
1227         (prune_unused_types_walk_attribs): Likewise.
1228
1229 2006-04-10  Eric Botcazou  <ebotcazou@libertysurf.fr>
1230
1231         * doc/install.texi (*-*-solaris2*): Point to the configure page.
1232
1233 2006-04-10  Jakub Jelinek  <jakub@redhat.com>
1234
1235         PR debug/27057
1236         * dwarf2out.c (is_symbol_die): Return true also for namespaces.
1237
1238 2006-04-09  Roger Sayle  <roger@eyesopen.com>
1239
1240         * expr.c (store_constructor): Don't bother clearing target if
1241         we're about to assign a vector to it using vec_init_optab.
1242
1243 2006-04-10 Daniel Berlin  <dberlin@dberlin.org>
1244
1245         * tree-ssa-alias.c (lhs_may_store_to): New function.
1246         (recalculate_used_alone): Handle LHS of calls.
1247
1248 2006-04-09  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1249
1250         PR target/27034
1251         PR target/26508
1252         * config.gcc (hppa*64*-*-hpux11*): Add 'libgcc_stub.a' to extra_parts.
1253         * pa64-hpux.h (LIB_SPEC): Correct typo.  Don't append milli.a.
1254         (LINK_GCC_C_SEQUENCE_SPEC): Define.  Append milli.a here.
1255         (PA_CXA_FINALIZE_STUB, PA_JV_REGISTERCLASSES_STUB): Delete defines.
1256         (PA_INIT_FINI_HACK): Rename to PA_CRTBEGIN_HACK.
1257         (PA_CRTBEGIN_HACK): Ensure __do_global_ctors_aux is placed in text
1258         section.  Delete PA_CXA_FINALIZE_STUB and PA_JV_REGISTERCLASSES_STUB
1259         stubs.  Add ".align 8" directives before all ".dword" directives.
1260         (GTHREAD_USE_WEAK): Revise comment.
1261         (TARGET_ATTRIBUTE_WEAK): Define.
1262         * pa/t-pa64 (LIBGCCSTUB_OBJS): Add new rules for stublib.c, rfi-stub.o,
1263         dfi-stub.o, cxaf-stub.o and jvrc-stub.o.
1264         * stublib.c: New file.
1265
1266         PR target/26743
1267         PR target/11254
1268         PR target/10274
1269         * pa.md (cbranch patterns): Revise arguments used in calls to
1270         output_cbranch, output_bb and output_bvd.  Add long branch length
1271         attributes.
1272         (fbranch patterns): Handle long branches.
1273         (jump): Revise length check.  Revise arguments for output_lbranch call.
1274         Add long branch length attributes.
1275         (decrement_and_branch_until_zero): Add long branch length attributes.
1276         (output_movb, output_parallel_addb and output_parallel_movb patterns):
1277         Likewise.  Revise arguments for output_parallel_addb and
1278         output_parallel_movb calls.
1279         * pa-protos.h (output_cbranch, output_lbranch, output_bb, output_bvb,
1280         output_parallel_movb and output_parallel_addb): Update prototypes.
1281         * pa.c (output_cbranch): Revise arguments.  Correct handling of
1282         nullification in long branches.
1283         (output_lbranch): Add new argument to control extraction of delay
1284         instruction.
1285         (output_bb): Handle long branches.
1286         (output_bvb, output_dbra, output_movb, output_parallel_movb,
1287         output_parallel_addb): Likewise.
1288
1289 2006-04-09  Richard Sandiford  <richard@codesourcery.com>
1290
1291         PR rtl-optimization/27073
1292         * gcse.c (try_replace_reg): Just propagate into REG_EQUAL notes,
1293         not REG_EQUIVs.
1294
1295 2006-04-08  Daniel Berlin  <dberlin@dberlin.org>
1296
1297         * tree.h (tree_memory_tag): Add old_used_alone.
1298         (SMT_OLD_USED_ALONE): New macro.
1299         * tree-ssa-alias.c (recalculate_used_alone): Stop
1300         marking things for renaming unnecessarily.
1301
1302 2006-04-08  Kazu Hirata  <kazu@codesourcery.com>
1303
1304         * builtins.c, config/arm/arm.c, config/i386/cygwin.h,
1305         config/i386/i386.c, config/ia64/ia64.c, config/s390/fixdfdi.h,
1306         config/sh/sh.c, config/sh/sh.h, df-scan.c, except.c,
1307         haifa-sched.c, optabs.c, rtl.h, sched-deps.c, sched-int.h,
1308         sched-rgn.c, tree-inline.h, tree-ssa-dom.c,
1309         tree-ssa-loop-prefetch.c, tree-ssa-operands.c,
1310         tree-vect-patterns.c, tree-vrp.c: Fix comment typos.  Follow
1311         spelling convensions.
1312         * config/ia64/ia64.opt, doc/contrib.texi, doc/invoke.texi,
1313         doc/passes.texi, doc/tm.texi, doc/tree-ssa.texi: Fix comment
1314         typos.  Follow spelling conventions.
1315
1316 2006-04-07  DJ Delorie  <dj@redhat.com>
1317
1318         * config/m32c/m32c.c (m32c_function_arg): Structures are always
1319         passed on the stack.
1320         (m32c_init_cumulative_args): When a function returns a structure,
1321         always pass the pointer to that return area on the stack.
1322         (m32c_function_arg_advance): Don't increment the parameter number
1323         if we're processing the returned structure pointer.
1324         (pushm_info): Reverse order of registers.
1325
1326 2006-04-07  Sebastian Pop  <pop@cri.ensmp.fr>
1327
1328         * tree-ssa-loop-niter.c (inverse, number_of_iterations_ne,
1329         assert_no_overflow_lt, assert_loop_rolls_lt, number_of_iterations_lt,
1330         number_of_iterations_le, number_of_iterations_cond, find_loop_niter,
1331         estimate_numbers_of_iterations_loop): Use build_int_cst instead of
1332         build_int_cst_type.
1333         * tree-chrec.c (chrec_fold_multiply_poly_poly,
1334         chrec_fold_multiply): Same.
1335         * tree-ssa-loop-ivopts.c (strip_offset_1, force_expr_to_var_cost,
1336         force_expr_to_var_cost): Same.
1337         * tree-mudflap.c (mf_xform_derefs_1): Same.
1338         * tree-ssa-loop-prefetch.c (idx_analyze_ref): Same.
1339
1340 2006-04-07  David Edelsohn  <edelsohn@gnu.org>
1341
1342         * config/rs6000/rs6000.c (rs6000_rtx_costs) <CONST_DOUBLE>: Do not
1343         treat CONST_DOUBLE as INTVAL.  and64_2_operands require an extra
1344         insn.
1345
1346 2006-04-07  Jan Hubicka  <jh@suse.cz>
1347
1348         * ipa-inline.c (cgraph_early_inlining): Collect garbage.
1349
1350 2006-04-07  Richard Guenther  <rguenther@suse.de>
1351
1352         PR tree-optimization/26135
1353         * tree-ssa-copy.c (stmt_may_generate_copy): Handle memory
1354         loads for store copy-prop.
1355         (copy_prop_visit_stmt): Likewise.
1356
1357 2006-04-05  Robert Millan  <robertmh@gnu.org>
1358
1359         * gcc/config/i386/linux.h:  Add a comment to mark macros that are
1360         being overriden in config/k*bsd-gnu.h.
1361         * gcc/config/kfreebsd-gnu.h:  Redefine GLIBC_DYNAMIC_LINKER instead of
1362         DYNAMIC_LINKER.
1363         * gcc/config/knetbsd-gnu.h:  Ditto.
1364
1365 2006-04-06  Jan Hubicka  <jh@suse.cz>
1366
1367         PR profile/20815
1368         PR profile/26399
1369         * coverage.c (coverage_checksum_string): Reorganize loop to not read
1370         after buffer.
1371
1372 2006-04-06  Mike Stump  <mrs@apple.com>
1373
1374         * builtins.c (expand_builtin_longjmp):Use #ifdef instead of #if
1375         for HAVE_nonlocal_goto to be consistent.
1376         (expand_builtin_nonlocal_goto): Likewise.
1377         (expand_builtin_strcmp): Use #ifdef instead of #if
1378         for HAVE_cmpstrnsi to be consistent.
1379
1380 2006-04-05  DJ Delorie  <dj@redhat.com>
1381
1382         * config/m32c/m32c.h (INCOMING_FRAME_SP_OFFSET): Adjust for m16c
1383         vs m32c.
1384
1385 2006-04-05  Bernd Schmidt  <bernd.schmidt@analog.com>
1386
1387         * config/bfin/bfin.c (bfin_legitimate_address_p): Disallow
1388         got-relative addressing for anything but SImode.
1389
1390         * config/bfin/lib1funcs.asm (modsi): P1/P2 can be call-clobbered
1391         even if the calling function doesn't modify them.
1392
1393 2006-04-05  Richard Guenther  <rguenther@suse.de>
1394
1395         PR tree-optimization/26919
1396         * ipa-inline.c (cgraph_decide_inlining_incrementally): Fix argument
1397         to cgraph_estimate_size_after_inlining.
1398
1399 2006-04-05  Alan Modra  <amodra@bigpond.net.au>
1400
1401         * reload.c (find_dummy_reload): Fix typo in 2006-04-03 change.
1402
1403 2006-04-05  Sebastian Pop  <pop@cri.ensmp.fr>
1404
1405         PR tree-optimization/26996
1406         * tree-scalar-evolution.c (analyze_scalar_evolution_1): Don't analyze
1407         VECTOR_TYPE variables.
1408
1409 2006-04-05  Richard Guenther  <rguenther@suse.de>
1410
1411         PR tree-optimization/26763
1412         * fold-const.c (fold_comparison): Move folding of
1413         PTR + CST CMP PTR + CST ...
1414         (fold_binary): ... here.  Fold only for EQ_EXPR and NE_EXPR.
1415
1416 2006-04-05  Gerald Pfeifer  <gerald@pfeifer.com>
1417
1418         * doc/install.texi (Prerequisites): Refine some wording on
1419         bootstrapping and ksh.
1420         Move the version numbers of DejaGnu here from the testing section
1421         and fix casing of names.
1422         Fix markup and clarify wording for autogen requirements.
1423         Refer to GCJ instead of just java.
1424         Refer to SVN instead of CVS.
1425         Describe diffutils as useful instead of necessary.
1426         (Downloading the source): Refer to SVN instead of CVS.
1427         Adjust a link to our web site accordingly.
1428         (Configuration): Fix casing of Bison.
1429         (Building): Refer to SVN instead of CVS.
1430         Fix a sentence on the use of Bison and remove duplicate (and
1431         incorrect) version number of Bison requirement.
1432         Remove one redundant list of packages needed for building.
1433         (Specific): Avoid reference to CVS.
1434
1435 2006-04-04  Eric Christopher  <echristo@apple.com>
1436
1437         * config/rs6000/rs6000.c (TARGET_MS_BITFIELD_LAYOUT_P): Define.
1438         (TARGET_USE_MS_BITFIELD_LAYOUT): Ditto.
1439         (rs6000_handle_struct_attribute): New.
1440         (rs6000_ms_bitfield_layout_p): Ditto.
1441
1442 2006-04-04  Geoffrey Keating  <geoffk@apple.com>
1443
1444         * config/darwin-crt3.c (atexit): Pass &__dso_handle rather than
1445         NULL for dso parameter to atexit_common.
1446
1447 2006-04-04  Eric Christopher  <echristo@apple.com>
1448
1449         * config/i386/i386.c (machopic_output_stub): Output \t
1450         between instructions and operands.
1451
1452 2006-04-04  David Edelsohn  <edelsohn@gnu.org>
1453
1454         * config/rs6000/rs6000.c (num_insns_constant_wide): Change
1455         satisfies_constraint_[IL] to explicit tests on value.
1456
1457 2006-04-04  Sebastian Pop  <pop@cri.ensmp.fr>
1458
1459         * tree-scalar-evolution.c (compute_overall_effect_of_inner_loop,
1460         set_nb_iterations_in_loop): Use build_int_cst instead of
1461         build_int_cst_type.
1462         * tree-data-ref.c (can_use_analyze_subscript_affine_affine): Use
1463         build_int_cst instead of convert.
1464
1465 2006-04-04  Carlos O'Donell  <carlos@codesourcery.com>
1466
1467         * doc/tm.texi (TARGET_STRUCT_VALUE_RTX): Document
1468         new value 2 for incoming.
1469         * function.c (expand_function_start): Call struct_value_rtx
1470         with incoming as 2.
1471         * config/sparc/sparc.md: Comment updated_return.
1472         * config/sparc/sparc.opt: Add -mstd-struct-return option.
1473         * config/sparc/sparc.c (sparc_struct_value_rtx): Use standard
1474         struct return if sparc_std_struct_return and incoming is 2.
1475         (print_operand): Do not adjust return if
1476         sparc_std_struct_return.
1477
1478 2006-04-04  Roger Sayle  <roger@eyesopen.com>
1479
1480         * builtins.c (fold_builtin_sprintf): Use fold_convert instead of
1481         convert in the middle-end.
1482         * expr.c (store_expr, store_constructor, get_inner_reference,
1483         expand_expr_real_1, string_constant, try_casesi, try_tablejump):
1484         Likewise.
1485         * tree.c (build_range_type): Likewise.
1486
1487 2006-04-04  Tom Tromey  <tromey@redhat.com>
1488
1489         * doc/install.texi (Prerequisites): Mention jar.
1490
1491 2006-04-04  Daniel Berlin  <dberlin@dberlin.org>
1492
1493         * doc/tree-ssa.texi (Preserving the virtual ssa form): New
1494         subsection.
1495
1496 2006-04-04  Matthias Klose  <doko@debian.org>
1497
1498         * Makefile.in (unprotoize.o): Same dependencies as for protoize.o.
1499         * Makefile.in (s-macro_list): Conform to POSIX rules in single quoted
1500         strings.
1501
1502 2006-04-03  Geoffrey Keating  <geoffk@apple.com>
1503
1504         * doc/extend.texi (Function Attributes): Rewrite visibility
1505         attribute documentation.
1506         * doc/invoke.texi (C++ Dialect Options): Rewrite
1507         -fvisibility-inlines-hidden documentation to describe something
1508         entirely different, although in practise compatible.
1509         (Code Gen Options): Warn about system headers in -fvisibiltity=
1510         documentation.
1511
1512         * doc/extend.texi (Other Builtins): Document that
1513         __builtin_nan is a compile-time constant only when its argument
1514         is valid.
1515
1516 2006-04-03  Adam Nemet  <anemet@caviumnetworks.com>
1517
1518         * simplify-rtx.c (simplify_unary_operation_1) <TRUNCATE>: When
1519         trying to remove TRUNCATE check if all bits outside the new mode
1520         are identical to the sign bit.
1521
1522 2006-04-03  Jeff Law  <law@redhat.com>
1523
1524         * tree-ssa-dom.c (propagate_rhs_into_lhs): Avoid useless folding
1525         and operand scanning in some common cases.
1526
1527 2006-04-03  Paolo Bonzini  <bonzini@gnu.org>
1528             Dale Johannesen  <dalej@apple.com>
1529
1530         PR target/19653
1531         * regclass.c (struct reg_pref): Update documentation.
1532         (regclass): Set prefclass to NO_REGS if memory is the best option.
1533         (record_reg_classes): Cope with a prefclass set to NO_REGS.
1534         * reload.c (find_reloads): Take PREFERRED_OUTPUT_RELOAD_CLASS
1535         into account.  For non-registers, equate an empty preferred
1536         reload class to a `!' in the constraint; move the if clause to
1537         do so after those that reject the insn.
1538         (push_reload): Allow PREFERRED_*_RELOAD_CLASS to liberally
1539         return NO_REGS.
1540         (find_dummy_reload): Likewise.
1541         * doc/tm.texi (Register Classes): Document what it means
1542         if PREFERRED_*_RELOAD_CLASS return NO_REGS.
1543         * config/i386/i386.c (ix86_preferred_reload_class): Force
1544         using SSE registers (and return NO_REGS for floating-point
1545         constants) if math is done with SSE.
1546         (ix86_preferred_output_reload_class): New.
1547         * config/i386/i386-protos.h (ix86_preferred_output_reload_class): New.
1548         * config/i386/i386.h (PREFERRED_OUTPUT_RELOAD_CLASS): New.
1549         * config/i386/i386.md: Remove # register preferences.
1550
1551 2006-04-02  Sebastian Pop  <pop@cri.ensmp.fr>
1552
1553         PR bootstrap/26992
1554         * tree-scalar-evolution.c (compute_overall_effect_of_inner_loop,
1555         chrec_is_positive, set_nb_iterations_in_loop): Use a variable for
1556         the type of nb_iter.
1557         (instantiate_parameters_1): Convert the operands before calling
1558         chrec_fold_minus, chrec_fold_plus, or chrec_fold_multiply.
1559         * tree-data-ref.c (can_use_analyze_subscript_affine_affine): Same.
1560
1561 2006-04-02  Roger Sayle  <roger@eyesopen.com>
1562
1563         * builtins.c (dummy_object): Use build_int_cst instead of convert.
1564         * tree-ssa-ccp.c (maybe_fold_stmt_addition): Use fold_convert
1565         instead of convert.
1566         * dojump.c (do_jump): Likewise.
1567         * expr.h (ADD_PARM_SIZE, SUB_PARM_SIZE, ARGS_SIZE_TREE): Likewise.
1568         * gimplify.c (gimple_boolify, gimplify_init_constructor,
1569         gimplify_boolean_expr): Likewise.
1570         * emit-rtl.c (set_mem_attributes_minus_bitpos): Likewise.
1571         * varasm.c (array_size_for_constructor): Likewise.
1572         * tree-object-size.c (compute_object_offset): Likewise.
1573
1574 2006-04-02  Roger Sayle  <roger@eyesopen.com>
1575
1576         PR middle-end/26977
1577         * expr.c (emit_group_store): Check whether simplify_gen_subreg returns
1578         NULL_RTX, indicating it couldn't create a valid paradoxical subreg.
1579
1580 2006-04-02  Sebastian Pop  <pop@cri.ensmp.fr>
1581
1582         PR tree-optimization/26939
1583         * tree-chrec.c (chrec_merge): Use eq_evolutions_p.
1584
1585 2006-04-02  Sebastian Pop  <pop@cri.ensmp.fr>
1586
1587         * tree-scalar-evolution.c (add_to_evolution_1): Pass an extra argument
1588         at_stmt.  Convert the type of operands before calling
1589         build_polynomial_chrec.
1590         (add_to_evolution): Pass an extra argument at_stmt.  Adjust the call to
1591         add_to_evolution_1.
1592         (follow_ssa_edge_in_rhs): Adjust call to add_to_evolution.
1593         (instantiate_parameters_1): Convert the type of operands before calling
1594         build_polynomial_chrec.
1595         * tree-chrec.c (chrec_fold_poly_cst, chrec_fold_plus_poly_poly,
1596         chrec_fold_multiply_poly_poly, chrec_replace_initial_condition,
1597         reset_evolution_in_loop): Insert asserts to check the types of the
1598         operands.
1599         (chrec_type): Moved...
1600         (eq_evolutions_p): Use operand_equal_p.
1601         * tree-chrec.h (build_polynomial_chrec): Insert an assert to check
1602         the types of the operands.
1603         (chrec_type): ...here.
1604         * tree-data-ref.c (create_data_ref): Convert the operands before
1605         calling chrec_replace_initial_condition.
1606         (same_access_functions, analyze_subscript_affine_affine,
1607         analyze_miv_subscript, all_chrecs_equal_p): Use eq_evolutions_p.
1608         (compute_subscript_distance, analyze_ziv_subscript,
1609         analyze_siv_subscript_cst_affine, compute_overlap_steps_for_affine_1_2,
1610         analyze_miv_subscript): Convert the operands before calling
1611         chrec_fold_minus or chrec_fold_plus.
1612
1613 2006-04-02  Sebastian Pop  <pop@cri.ensmp.fr>
1614
1615         * tree-data-ref.c (compute_all_dependences): Use a pointer to
1616         the dependence_relations vector.
1617         (compute_data_dependences_for_loop): Adjust call to
1618         compute_all_dependences.
1619
1620 2006-04-01  Roger Sayle  <roger@eyesopen.com>
1621             Richard Henderson  <rth@redhat.com>
1622
1623         * gimplify.c (gimplify_scan_omp_clauses) <OMP_CLAUSE_IF>: Call
1624         gimple_boolify on the condition before calling gimplify_expr.
1625
1626 2006-03-31  Bob Wilson  <bob.wilson@acm.org>
1627
1628         * config/xtensa/lib1funcs.asm: Rename abi_entry/abi_return macros
1629         to leaf_entry/leaf_return.  Change leaf_entry to add 16 bytes to
1630         the frame size.  Update to use the new macros.
1631         * config/xtensa/ieee754-sf.S: Use new leaf_entry/leaf_return macros.
1632         * config/xtensa/ieee754-df.S: Likewise.
1633
1634 2006-03-31  Richard Henderson  <rth@redhat.com>
1635
1636         * tree-cfg.c (make_ctrl_stmt_edges, make_exit_edges): Merge into...
1637         (make_edges): ... here.  Control fallthru creation with a local
1638         variable.  Do not play with fake edges.
1639         (make_omp_sections_edges): Don't set EDGE_ABNORMAL.
1640         (make_goto_expr_edges): Don't play with fake edges.  Make for_call
1641         a boolean.
1642
1643 2006-04-01  Joseph S. Myers  <joseph@codesourcery.com>
1644
1645         * dwarf2.h (DW64_CIE_ID): Define.
1646         * dwarf2out.c (DWARF_CIE_ID): Define.
1647         (output_call_frame_info): Output 0xffffffff before standard 8-byte
1648         length header.  Use DWARF_CIE_ID.
1649         (value_format): Use DW_FORM_data4 or DW_FORM_data8 for
1650         dw_val_class_loc_list depending on DWARF_OFFSET_SIZE.
1651
1652 2006-03-31  Kaz Kojima  <kkojima@gcc.gnu.org>
1653
1654         * config/sh/linux-atomic.asm: New file.
1655         * config/sh/t-linux (LIB2FUNCS_EXTRA): Add linux-atomic.asm.
1656
1657 2006-03-31  DJ Delorie  <dj@redhat.com>
1658
1659         * config/m32c/cond.md: Set condition flags properly throughout.
1660         * config/m32c/minmax.md: Likewise.
1661         * config/m32c/prologue.md: Likewise.
1662         * config/m32c/bitops.md: Likewise.
1663         * config/m32c/muldiv.md: Likewise.
1664         * config/m32c/mov.md: Likewise.
1665         * config/m32c/addsub.md: Likewise.
1666         * config/m32c/m32c.md: Likewise.
1667         * config/m32c/jump.md: Likewise.
1668         * config/m32c/shift.md: Likewise.
1669
1670         * config/m32c/cond.md (cmp<mode>): Call m32c_output_compare to
1671         conditionally output the pattern for this.
1672         * config/m32c/m32c.c (flags_needed_for_conditional): New.
1673         (m32c_compare_redundant): New.
1674         (m32c_output_compare): New.
1675         * config/m32c/m32c-protos.h (m32c_output_compare): New.
1676
1677         * config/m32c/m32c.c (m32c_prepare_shift): Fix logic to clobber
1678         dest, not src.  Allow other 4-byte modes.
1679
1680 2006-03-30  Denis Chertykov  <denisc@overta.ru>
1681
1682         * doc/md.texi: Refer to avr/constraints.md instead of
1683         avr/avr.h.
1684
1685 2006-03-30  Roger Sayle  <roger@eyesopen.com>
1686
1687         * expr.c (emit_group_store): Make BYTEPOS a HOST_WIDE_INT to
1688         signed vs. unsigned comparison failures on some hosts.
1689
1690 2006-03-31  Alan Modra  <amodra@bigpond.net.au>
1691
1692         PR target/26459
1693         * config/rs6000/rs6000.h (CANNOT_CHANGE_MODE_CLASS): Limit 2003-12-08
1694         change to FLOAT_REGS.
1695
1696         * config/rs6000/rs6000.c (rs6000_explicit_options): Add ieee.
1697         (rs6000_override_options): Use it.
1698         (rs6000_handle_option): Set it.  Set rs6000_explicit_options.abi
1699         only for -mabi=spe/no-spe and -mabi=altivec.
1700
1701 2006-03-30  Geoffrey Keating  <geoffk@apple.com>
1702
1703         * config/darwin.h (LINK_COMMAND_SPEC): Don't try to protect %S with
1704         !Zdynamiclib.
1705
1706 2006-03-30  Carlos O'Donell  <carlos@codesourcery.com>
1707
1708         * Makefile.in: Rename docdir to gcc_docdir.
1709
1710 2006-03-30  Roger Sayle  <roger@eyesopen.com>
1711
1712         PR target/17959
1713         * expr.c (emit_group_store):  Optimize group stores into a pseudo
1714         register by using a paradoxical subreg to initialize the destination
1715         if the first or last member of the group specifies a "low part".
1716
1717 2006-03-30  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
1718
1719         PR target/26734
1720         * rtl.def (DEPS_LIST): Change type of the second operand to 'int'.
1721         * target.h (struct gcc_target.speculate_insn): Change type of the
1722         second parameter to 'int'.
1723         * lists.c (alloc_DEPS_LIST): Change signature.  Update reference to
1724         the second operand of the DEPS_LIST.
1725         (copy_DEPS_LIST_list): Update reference to the second operand of the
1726         DEPS_LIST.
1727         * rtl.h (alloc_DEPS_LIST): Update signature.
1728         * sched-int.h (ds_t): Change typedef to 'int'.
1729         (DEP_STATUS, BITS_PER_DEP_STATUS): Update.
1730
1731 2006-03-30  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
1732
1733         * haifa-sched.c (try_ready): Change condition to restore
1734         non-speculative pattern of the instruction.
1735         (process_insn_depend_be_in_spec): Code to keep probability of the
1736         speculative dependence non-decreasing.
1737
1738 2006-03-30  Jie Zhang  <jie.zhang@analog.com>
1739
1740         * config/bfin/bfin.c (single_move_for_strmov): Renamed to...
1741         (single_move_for_movmem): ... this. Also change all uses.
1742         (bfin_expand_strmov): Renamed to...
1743         (bfin_expand_movmem): ... this. Also change all uses.
1744         * config/bfin/bfin.md (movstrsi): Renamed to...
1745         (movstrsi): ...this.
1746
1747 2006-03-30  Paolo Bonzini  <bonzini@gnu.org>
1748
1749         PR tree-optimization/26830
1750
1751         * tree-ssa-copy.c (copy_prop_visit_assignment): Do not check loop depth.
1752         (copy_prop_visit_stmt): Remove write-only variable ann.
1753         (init_copy_prop): Check variable loop depth here.  Do not simulate
1754         memory-tag and virtual operand PHIs except for store copy prop.
1755
1756 2006-03-30  Richard Guenther  <rguenther@suse.de>
1757
1758         * config/i386/i386.c: Remove builtins for SSE2 ABI intrinsic
1759         variants with double arguments.
1760
1761 2006-03-29  David Edelsohn  <edelsohn@gnu.org>
1762
1763         * genpreds.c (write_tm_constrs_h): Delete variable p.
1764         * genconditions.c (write_header): Add tm-constrs.h to included
1765         headers.
1766         * genpeep.c (main): Add toplev.h to included headers.
1767         * Makefile.in (build/gencondmd.o): Add tm-constrs.h dependency.
1768         (build/genpeep.o): Add toplev.h dependency.
1769         * config/rs6000/constraints.md: Add "W" constraint.
1770
1771 2006-03-29  Roger Sayle  <roger@eyesopen.com>
1772
1773         * stor-layout.c (mode_for_size_tree): Remove restiction on type
1774         sizes by correctly testing whether the size fits a host integer.
1775         (initialize_sizetypes): Use set_min_and_max_values_for_integral_type
1776         to correctly set TYPE_MIN_VALUE and TYPE_MAX_VALUE to the full
1777         SImode range for the default sizetype and bitsizetype.
1778
1779 2006-03-29  Roger Sayle  <roger@eyesopen.com>
1780
1781         * convert.c (convert_to_pointer): Preserve the TREE_OVERFLOW
1782         and TREE_CONSTANT_OVERFLOW bits of the argument.  Return
1783         quickly if the argument is already of the correct type.
1784         Call fold_build1 instead of build1.  Tidy up blank lines.
1785
1786 2006-03-29  David Edelsohn  <edelsohn@gnu.org>
1787
1788         * genemit.c (main): Add tm-constrs.h to included headers.
1789         * genoutput.c (output_prologue): Add tm-constrs.h to included headers.
1790         * genpeep.c (main): Add tm-constrs.h to included headers.
1791         * genpreds.c (write_satisfies_constraint_fns): Rename to ...
1792         (write_tm_constrs_h): this and write complete file.
1793         (write_tm_preds_h): Do not emit satisfies_constraint fns.
1794         (write_insn_preds_c): Add tm-constrs.h to included headers.
1795         (gen_constrs): New variable.
1796         (parse_option): Parse "-c".
1797         (main): Invoke write_tm_constrs_h.
1798         * genrecog.c (write_header): Add tm-constrs.h to included headers.
1799         * Makefile.in (STAGECOPYSTUFF): Add tm-constrs.h.
1800         (object_out_file): Add tm-constrs.h dependency.
1801         (insn-emit.o): Same.
1802         (insn-output.o): Same.
1803         (insn-peep.o): Same.
1804         (insn-preds.o): Same.
1805         (insn-recog.o): Same.
1806         (tm-constsr.h): New target.
1807         (s-constrs-h): New target.
1808
1809         * config/rs6000/constraints.md: New file.
1810         * config/rs6000/rs6000.c: Include tm-constrs.h.
1811         (num_insn_constant_wide): Convert to satisfies_constraint.
1812         (rs6000_rtx_costs): Convert to satisfies_constraint.
1813         * config/rs6000/rs6000.h (REG_CLASS_FROM_LETTER): Delete.
1814         (CONST_OK_FOR_LETTER_P): Delete.
1815         (CONST_DOUBLE_OK_FOR_LETTER_P): Delete.
1816         (EXTRA_CONSTRAINT): Delete.
1817         (EXTRA_MEMORY_CONSTRAINT): Delete.
1818         (EXTRA_ADDRESS_CONSTRAINT): Delete.
1819         * config/rs6000/predicates.md: Convert to satisfies_constraint.
1820         * config/rs6000/rs6000.md: Include constraints.md.  Convert to
1821         satisfies_constraint.
1822
1823         * config/i386/i386.c: Include tm-constrs.h.
1824
1825 2006-03-29  Sebastian Pop  <pop@cri.ensmp.fr>
1826
1827         * tree-loop-linear.c (compute_data_dependences_for_loop): Adjust calls.
1828         * tree-data-ref.c (find_data_references_in_loop,
1829         compute_data_dependences_for_loop): Use pointers to VEC.
1830         (analyze_all_data_dependences): Adjust calls.
1831         * tree-data-ref.h (find_data_references_in_loop,
1832         compute_data_dependences_for_loop): Adjust declarations.
1833         * tree-vect-analyze.c (vect_analyze_data_refs): Adjust call to
1834         compute_data_dependences_for_loop.
1835
1836 2006-03-29  Paul Brook  <paul@codesourcery.com>
1837
1838         * config/arm/vfp.md (movsf_vfp): Disparage w<->r alternatives.
1839         (movdf_vfp): Ditto.
1840
1841 2006-03-29  Sebastian Pop  <pop@cri.ensmp.fr>
1842
1843         PR tree-optimization/26859
1844         * tree-ssa-loop-niter.c (infer_loop_bounds_from_undefined): Avoid
1845         division by zero.
1846         (convert_step): Remove TREE_OVERFLOW and TREE_CONSTANT_OVERFLOW flags
1847         for the step after fold_convert.
1848
1849 2006-03-29  Paul Brook  <paul@codesourcery.com>
1850
1851         * reload1.c (choose_reload_regs): Check for all RTX_AUTOINC operators.
1852         (inc_for_reload): Handle PRE_MODIFY and POST_MODIFY addresses.
1853
1854 2006-03-29  Paul Brook  <paul@codesourcery.com>
1855
1856         PR middle-end/23623
1857         * targhooks.c (default_narrow_bitfield): New fuction.
1858         * targhooks.h (default_narrow_bitfield): add prototype.
1859         * target.h (gcc_target): Add narrow_volatile_bitfield.
1860         * target-def.h (TARGET_NARROW_VOLATILE_BITFIELD): Define.
1861         * stor-layout.c (get_best_mode): Use targetm.narrow_volatile_bitfield.
1862         * doc/tm.texi: Document TARGET_NARROW_VOLATILE_BITFIELDS.
1863         * config/arm/arm.c (TARGET_NARROW_VOLATILE_BITFIELD): Define.
1864
1865 2006-03-29  Andreas Krebbel  <krebbel1@de.ibm.com>
1866
1867         * config.gcc (s390-*-linux-*, s390x-*-linux*): Add t-dfprules to
1868         tmake_file.
1869         * config/s390/s390.c (S390_scalar_mode_supported_p): New function.
1870         (NR_C_MODES): Add TDmode, DDmode and SDmode.
1871         (s390_output_pool_entry, ): Accept MODE_DECIMAL_FLOAT.
1872         (s390_hard_regno_mode_ok): Disallow TDmode in integer regs.
1873         (s390_function_arg_float): Allow SDmode and DDmode values to be
1874         passed in floating point registers.
1875         (s390_function_arg_integer, s390_function_value): Replace MODE_FLOAT
1876         check with SCALAR_FLOAT_MODE_P.
1877         (TARGET_SCALAR_MODE_SUPPORTED_P): Define target macro.
1878
1879 2006-03-28  Zdenek Dvorak <dvorakz@suse.cz>
1880
1881         PR tree-optimization/25985
1882         * tree-ssa-loop-niter.c (number_of_iterations_le,
1883         number_of_iterations_ne): Make comments more precise.
1884         (number_of_iterations_cond): Add only_exit argument.  Use the
1885         fact that signed variables do not overflow only when only_exit
1886         is true.
1887         (loop_only_exit_p): New.
1888         (number_of_iterations_exit): Pass result of loop_only_exit_p to
1889         number_of_iterations_cond.
1890
1891 2006-03-28  Zdenek Dvorak <dvorakz@suse.cz>
1892
1893         PR tree-optimization/26643
1894         * tree-ssa-loop-ivopts.c (find_interesting_uses_address): Do not handle
1895         bit_field_refs.
1896
1897 2006-03-28  Kaz Kojima  <kkojima@gcc.gnu.org>
1898
1899         * config/sh/sh.md (udivsi3_i4_int): Clobber MACH_REG and MACL_REG.
1900         (divsi3_i4_int): Likewise.
1901
1902 2006-03-28  Roger Sayle   <roger@eyesopen.com>
1903
1904         * expr.c (emit_group_store): Only create a new pseudo reg if the
1905         quantity it needs to hold isn't already a suitable pseudo.
1906
1907 2006-03-28  Jeff Law  <law@redhat.com>
1908
1909         * timevar.def (TV_TREE_PHI_CPROP): New timevar.
1910         * tree-ssa-dom.c (pass_phi_only_cprop): Use it.
1911
1912 2006-03-28  Roger Sayle  <roger@eyesopen.com>
1913
1914         * fold-const.c (fold_binary) <BIT_XOR_EXPR>: Fold (X & Y) ^ Y as
1915         the equivalent ~X & Y, and the symmetry related transformations.
1916         (fold_binary) <BIT_AND_EXPR>: Similarly, fold (X ^ Y) & Y as
1917         ~X & Y, and symmetry related transforms.
1918
1919 2006-03-28  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
1920
1921         Revert my 2006-03-27 patches.
1922
1923 2006-03-28  Roger Sayle  <roger@eyesopen.com>
1924
1925         * fold-const.c (fold_unary) <NOP_EXPR>: Fold (T1)(~(T2)X) as
1926         ~(T1)X, when T1 and T2 are integer types of the same precision
1927         and (T2)X isn't an extension.
1928
1929 2006-03-28  Jeff Law  <law@redhat.com>
1930
1931         PR tree-optimization/26796
1932         * tree-ssa-dom.c (propagate_rhs_into_lhs): Queue blocks which
1933         need EH edge cleanups rather than purging them immediately.
1934         (eliminate_degenerate_phis): Handle queued EH cleanups.
1935
1936 2006-03-28  Daniel Berlin  <dberlin@dberlin.org>
1937
1938         * tree-ssa-alias.c (create_sft): Initially inherit TREE_ADDRESSABLE
1939         from parent_var.
1940
1941 2006-03-27  Roger Sayle  <roger@eyesopen.com>
1942
1943         PR middle-end/22524
1944         * fold-const.c (fold_binary) <MINUS_EXPR>: Call fold_convert to
1945         cast BIT_NOT_EXPR operand to the correct type.
1946
1947 2006-03-27  Sebastian Pop  <pop@cri.ensmp.fr>
1948
1949         * tree-loop-linear.c: Don't include varray.h.
1950         (gather_interchange_stats, try_interchange_loops,
1951         linear_transform_loops): Use VEC instead of VARRAY.
1952         * lambda-mat.c: Don't include varray.h.
1953         * tree-chrec.c: Same.
1954         * lambda-trans.c: Same.
1955         * tree-vectorizer.c (new_loop_vec_info, destroy_loop_vec_info): Use
1956         VEC instead of VARRAY.
1957         * tree-vectorizer.h: Idem.
1958         * tree-data-ref.c (dump_data_references,
1959         dump_data_dependence_relations, dump_dist_dir_vectors, dump_ddrs,
1960         initialize_data_dependence_relation, finalize_ddr_dependent,
1961         compute_all_dependences, find_data_references_in_loop,
1962         compute_data_dependences_for_loop, analyze_all_data_dependences,
1963         free_dependence_relation, free_dependence_relations,
1964         free_data_refs): Idem.
1965         * tree-data-ref.h (data_reference_p, subscript_p): New.
1966         (data_dependence_relation, DDR_SUBSCRIPT, DDR_NUM_SUBSCRIPTS): Use
1967         VEC instead of VARRAY.
1968         (DDR_SUBSCRIPTS_VECTOR_INIT): Removed.
1969         (find_data_references_in_loop, compute_data_dependences_for_loop,
1970         dump_ddrs, dump_dist_dir_vectors, dump_data_references,
1971         dump_data_dependence_relations, free_dependence_relations,
1972         free_data_refs): Adjust declaration.
1973         (lambda_transform_legal_p): Move declaration here...
1974         * tree-vect-analyze.c (vect_analyze_data_ref_dependences,
1975         vect_compute_data_refs_alignment, vect_verify_datarefs_alignment,
1976         vect_enhance_data_refs_alignment, vect_analyze_data_ref_accesses,
1977         vect_analyze_data_refs): Use VEC instead of VARRAY.
1978         * lambda.h (lambda_transform_legal_p): ...from here.
1979         * lambda-code.c (lambda_transform_legal_p): Use VEC instead of VARRAY.
1980         * tree-vect-transform.c (vect_update_inits_of_drs): Idem.
1981         * Makefile.in (tree-loop-linear.o, lambda-mat.o, lambda-trans.o,
1982         tree-chrec.o): Don't depend on VARRAY_H.
1983
1984 2006-03-27  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
1985
1986         * rtl.def (Copyright): Update date.
1987         (DEPS_LIST): Change type of the second operand to 'int'.
1988         * target.h (Copyright): Update date.
1989         (struct gcc_target.speculate_insn): Change type of the second parameter
1990         to 'int'.
1991         * lists.c (Copyright): Update date.
1992         (alloc_DEPS_LIST): Change signature.  Update reference to the second
1993         operand of the DEPS_LIST.
1994         (copy_DEPS_LIST_list): Update reference to the second operand of the
1995         DEPS_LIST.
1996         * rtl.h (Copyright): Update date.
1997         (alloc_DEPS_LIST): Update signature.
1998         * sched-int.h (Copyright): Update date.
1999         (ds_t): Change typedef to 'int'.
2000         (DEP_STATUS, BITS_PER_DEP_STATUS): Update.
2001
2002 2006-03-27  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
2003
2004         * haifa-sched.c (Copyright): Update date.
2005         (try_ready): Change condition to restore non-speculative pattern
2006         of the instruction.
2007         (process_insn_depend_be_in_spec): Code to keep probability of the
2008         speculative dependence non-decreasing.
2009
2010 2006-03-27  Bernd Schmidt  <bernd.schmidt@analog.com>
2011
2012         * regrename.c (replace_oldest_value_addr): Initialize a variable to
2013         shut up the compiler.
2014
2015 2006-03-27  J"orn Rennecke <joern.rennecke@st.com>
2016
2017         * config/sh/t-sh ($(T)libic_invalidate_array_4-100.a): Fix rule
2018         to use lib prefix for target.
2019         ($(T)libic_invalidate_array_4-200.a): Likewise.
2020         ($(T)libic_invalidate_array_4a.a): Likewise.
2021
2022 2006-03-27  Andrew Stubbs <andrew.stubbs@st.com>
2023             J"orn Rennecke <joern.rennecke@st.com>
2024
2025         * superh.opt: New file.
2026         * sh.c (boardtype, osruntime): Remove.
2027         * superh.h (SUBTARGET_OPTIONS): Remove.
2028         * config.gcc (sh*-superh-elf): Add sh/superh.opt to extra_options.
2029
2030         * config.gcc (sh*-*-*): Don't use c-c ranges for tr.  Quote sed
2031         arguments with ^ and/or [].
2032
2033         * config.gcc (sh-*-*): Add quoting to account for quirk of
2034         Solaris /bin/sh.
2035         Replace == with = in enable_incomplete_targets test.
2036
2037         * config/sh/superh.h (SUBTARGET_LINK_SPEC): Replace LITTLE_ENDIAN_BIT
2038         with MASK_LITTLE_ENDIAN.
2039
2040         * config.gcc (sh*-superh-elf): Add sh/superh.h to tm_file.
2041         * config/sh/sh.opt: Added to some comments.
2042         * config/sh/superh.h: Removed some chaff.
2043
2044         * config/sh/sh.opt: Add m4-[1234]00* options.
2045         * config/sh/sh.c (sh_handle_option): Likewise.
2046         * config/sh/t-sh (IC_EXTRA_PARTS, EXTRA_MULTILIB_PARTS): Define.
2047         (ic_invalidate_array_4-100.o): New rule.
2048         ($(T)libic_invalidate_array_4-100.a): Likewise.
2049         (ic_invalidate_array_4-200.o): Likewise.
2050         ($(T)libic_invalidate_array_4-200.a): Likewise.
2051         (ic_invalidate_array_4a.o): Likewise.
2052         ($(T)libic_invalidate_array_4a.a): Likewise.
2053         * config/sh/t-elf (EXTRA_MULTILIB_PARTS): Add IC_EXTRA_PARTS.
2054         * config/sh/embed-elf.h (LIBGCC_SPEC): Add clauses for m4-100*,
2055         m4-200*, and m4a*.
2056         * config/sh/crt1.asm: Merged in profiling code.
2057         * config/sh/superh.h (STARTFILE_SPEC): Override.
2058         * config/sh/t-superh: Override EXTRA_MULTILIB_PARTS.
2059         Add rules for $(T)crt1-mmu.o, $(T)gcrt1-mmu.o and $(T)gcrt1.o.
2060         * config.gcc (sh*-superh-elf): Add t-superh to tmake_file.
2061
2062         * t-sh (MULTILIB_MATCHES): Add sh4-[1245]00* variants.
2063         * config/sh/t-superh: Removed now-redundant MULTILIB_OPTIONS /
2064         MULTILIB_DIRNAMES / MULTILIB_MATCHES settings.
2065
2066         * sh.opt (mpretend-cmove): New option.
2067         * sh.h (OPERRIDE_OPTIONS): Switch it off if not TARGET_SH1.
2068         * sh.md (movsicc_t_false, movsicc_t_tru): New patterns.
2069         (movsicc): Add TARGET_PRETEND_CMOVE code.
2070
2071 2006-03-27  Andreas Krebbel  <krebbel1@de.ibm.com>
2072
2073         * config/s390/s390-protos.h (s390_hard_regno_mode_ok,
2074         s390_class_max_nregs): New function prototypes.
2075         * config/s390/s390.c (REGNO_PAIR_OK): New macro.
2076         (s390_hard_regno_mode_ok, s390_class_max_nregs): New functions.
2077         * config/s390/s390.h (HARD_REGNO_NREGS, HARD_REGNO_MODE_OK,
2078         CLASS_MAX_NREGS): Macro bodies replaced by function calls.
2079
2080 2006-03-26  Geoffrey Keating  <geoffk@apple.com>
2081
2082         * dwarf2out.c (add_location_or_const_value_attribute): Call
2083         tree_add_const_value_attribute if nothing else works.
2084         (reference_to_unused): New.
2085         (rtl_for_decl_init): Use reference_to_unused to decide whether
2086         to output an initializer.
2087
2088 2006-03-27  Alan Modra  <amodra@bigpond.net.au>
2089
2090         PR target/26459
2091         * config/rs6000/rs6000.md (DF reg move peephole): Prevent
2092         peephole removing spe frob_di_df_2.
2093
2094 2006-03-26  Sebastian Pop  <pop@cri.ensmp.fr>
2095
2096         * tree-data-ref.c: Rename DDR_SIZE_VECT to DDR_NB_LOOPS.
2097         (subscript_dependence_tester_1): Declared.
2098         (print_dir_vectors, print_dist_vectors): New.
2099         (debug_data_dependence_relation): New.
2100         (dump_data_dependence_relation): Print more details.
2101         (initialize_data_dependence_relation): Initialize DDR_LOOP_NEST.
2102         (analyze_subscript_affine_affine): Don't ICE when gcd_alpha_beta is 0.
2103         (save_dist_v, save_dir_v, add_outer_distances,
2104         build_classic_dist_vector_1): New.
2105         (build_classic_dist_vector): Rewrite to work on DDR_LOOP_NEST.
2106         Don't test for lambda_vector_lexico_pos.
2107         (same_access_functions, add_multivariate_self_dist,
2108         add_other_self_distances, dir_from_dist): New.
2109         (build_classic_dir_vector): Replace implementation almost identical to
2110         build_classic_dist_vector with a walk of DDR_DIST_VECTS with a call to
2111         dir_from_dist.
2112         (subscript_dependence_tester_1): New.
2113         (subscript_dependence_tester): Handle the lexicographically negative
2114         distance vectors by recomputing the dependence relation.
2115         (compute_affine_dependence): Remove parameter loop_nest_depth.
2116         (compute_self_dependence): Don't call compute_subscript_distance.
2117         (compute_all_dependences): Remove parameters nb_loops, loop_nest_depth.
2118         Add a parameter for the loop_nest.
2119         (find_loop_nest_1, find_loop_nest): New.
2120         (compute_data_dependences_for_loop): Compute the loop nest, and give
2121         up if the nest is not well formed.
2122         * tree-data-ref.h (loop_p): New.
2123         (struct data_dependence_relation): Replace size_vect field with
2124         loop_nest, a vec of loops.
2125         (DDR_SIZE_VECT): Renamed DDR_NB_LOOPS.
2126         (DDR_LOOP_NEST): New.
2127         (print_dir_vectors, print_dist_vectors,
2128         debug_data_dependence_relation): Declared.
2129         (index_in_loop_nest): New.
2130         * tree-vect-analyze.c (vect_analyze_data_ref_dependence): Use
2131         DDR_LOOP_NEST and index_in_loop_nest to determine the dependence
2132         distance.
2133
2134 2006-03-25  Adam Nemet  <anemet@caviumnetworks.com>
2135
2136         * simplify-rtx.c (simplify_relational_operation): Call
2137         simplify_relational_operation_1 even if mode is VOIDmode.
2138
2139 2006-03-25  Daniel Berlin  <dberlin@dberlin.org>
2140
2141         PR tree-optimization/26804
2142         * tree.h (DECL_CALL_CLOBBERED): New macro.
2143         (tree_decl_common): Add call_clobbered_flag.
2144         * tree-flow-inline.h (is_call_clobbered): Use DECL_CALL_CLOBBERED.
2145         (mark_call_clobbered): Set DECL_CALL_CLOBBERED.
2146         (clear_call_clobbered): Clear DECL_CALL_CLOBBERED.
2147         (mark_non_addressable): Ditto.
2148         * tree-ssa.c (verify_call_clobbered): New function.
2149         (verify_alias_info): Use it.
2150         * tree-pass.h (pass_reset_cc_flags): New prototype.
2151         * tree-ssa-alias.c (pass_reset_cc_flags): New structure.
2152         (reset_cc_flags): New function.
2153         * passes.c (init_optimization_passes): Call reset_cc_flags after
2154         initializing referenced_vars.
2155
2156 2006-03-25  Uros Bizjak  <uros@kss-loka.si>
2157             Roger Sayle  <roger@eyesopen.com>
2158
2159         PR middle-end/26717
2160         * fold-const.c (fold_binary) [RDIV_EXPR]: Do not optimize A / A
2161         to 1.0 for non-real operands. Implement A / A optimization for
2162         complex operands.
2163
2164 2006-03-25  H.J. Lu  <hongjiu.lu@intel.com>
2165
2166         * config/i386/i386.c (size_cost): Correct the comment for
2167         cost of storing fp registers.
2168         (i386_cost): Likewise.
2169         (i486_cost): Likewise.
2170         (pentium_cost): Likewise.
2171         (pentiumpro_cost): Likewise.
2172         (k6_cost): Likewise.
2173         (athlon_cost): Likewise.
2174         (k8_cost): Likewise.
2175         (pentium4_cost): Likewise.
2176         (nocona_cost): Likewise.
2177         (generic64_cost): Likewise.
2178         (generic32_cost): Likewise.
2179
2180 2006-03-24  Denis Chertykov  <denisc@overta.ru>
2181
2182         * config/avr/avr-protos.h (extra_constraint): Delete.
2183         (extra_constraint_Q): New declaration.
2184         * config/avr/constraints.md: New file.
2185         * config/avr/avr.md: Include it.
2186         (REG_X, REG_Y, REG_Z, REG_W): New constants.
2187         (TMP_REGNO, ZERO_REGNO): Likewise.
2188         (UNSPEC_STRLEN, UNSPEC_INDEX_JMP): Likewise.
2189         * config/avr/avr.c (avr_reg_class_from_letter): Delete.
2190         (extra_constraint): Delete.
2191         (extra_constraint_Q): Test for memory constraint 'Q'.
2192         * config/avr/avr.h (REG_X,REG_Y,REG_Z,REG_W): Delete.
2193         (REG_CLASS_FROM_LETTER): Delete.
2194         (CONST_OK_FOR_LETTER_P): Delete.
2195         (CONST_DOUBLE_OK_FOR_LETTER_P): Delete.
2196         (EXTRA_CONSTRAINT): Delete.
2197         (TMP_REGNO): Delete.
2198         (ZERO_REGNO): Delete.
2199
2200 2006-03-24  Jeff Law  <law@redhat.com>
2201
2202         * tree-ssa-dom.c (propagate_rhs_into_lhs): Don't call update_stmt
2203         directly.  Call mark_new_vars_to_rename slightly earlier.
2204
2205 2006-03-24  Geoffrey Keating  <geoffk@apple.com>
2206
2207         * dwarf2out.c (is_c_family): Understand new DWARF3 language types.
2208         (is_cxx): Likewise.
2209         (gen_compile_unit_die): Use new language types for Objective-C and
2210         Objective-C++.
2211         (dwarf2out_decl): Use is_cxx rather than testing explicitly against
2212         DW_LANG_C_plus_plus.
2213
2214         PR 26793
2215         * config/t-darwin (crt3.o): Work around bug 26840.
2216         * config/darwin-crt3.c: Rewrite.
2217         * config/darwin.h (STARTFILE_SPEC): Don't use -l for crt3.o.
2218
2219 2006-03-24  Carlos O'Donell  <carlos@codesourcery.com>
2220
2221         * doc/invoke.texi: Document -femit-class-debug-always
2222         * common.opt: Add -femit-class-debug-always.
2223
2224 2006-03-24  Andreas Krebbel  <krebbel1@de.ibm.com>
2225
2226         * config/s390/s390.c (s390_decompose_address): Allow SImode for
2227         index and base register.
2228         (s390_expand_plug_operand, legitimate_address_p, preferred_la_operand_p,
2229         print_operand_address, print_operand): Replaced REG_OK_FOR_BASE_STRICT_P
2230         with REGNO_OK_FOR_BASE_P and REG_OK_FOR_INDEX_STRICT_P with
2231         REGNO_OK_FOR_INDEX_P.
2232         * config/s390/s390.h (REGNO_OK_FOR_INDEX_P): Replaced check with
2233         ADDR_REGNO_P.
2234         (REG_OK_FOR_INDEX_NONSTRICT_P, REG_OK_FOR_BASE_NONSTRICT_P,
2235         REG_OK_FOR_INDEX_STRICT_P, REG_OK_FOR_BASE_STRICT_P, REG_OK_FOR_INDEX_P,
2236         REG_OK_FOR_BASE_P): Definitions removed.
2237
2238 2006-03-24  Jakub Jelinek  <jakub@redhat.com>
2239
2240         PR middle-end/26611
2241         * gimplify.c (gimplify_bind_expr): Only call omp_add_variable on
2242         non-global variables that don't have DECL_SEEN_IN_BIND_EXPR_P bit
2243         set yet or weren't marked as local yet.
2244
2245 2006-03-24  Bernd Schmidt  <bernd.schmidt@analog.com>
2246
2247         * regrename.c (scan_rtx_address): Initialize a variable to shut up
2248         the compiler.
2249
2250 2006-03-24  Eric Botcazou  <ebotcazou@adacore.com>
2251
2252         * config/rs6000/rs6000-protos.h (rs6000_offsettable_memref_p): Declare.
2253         (rs6000_legitimate_small_data_p): Delete.
2254         * config/rs6000/rs6000.c (rs6000_offsettable_memref_p): New predicate.
2255         (rs6000_legitimate_small_data_p): Rename to legitimate_small_data_p
2256         and make static.  Add forward declaration.  Update uses.
2257         (rs6000_split_multireg_move): Use rs6000_offsettable_memref_p instead
2258         of offsettable_memref_p.
2259         * config/rs6000/rs6000.md (movdf_hardfloat32): Revert 2005-08-23 fix.
2260         Use rs6000_offsettable_memref_p instead of a less accurate predicate.
2261
2262 2006-03-24  Jeff Law  <law@redhat.com>
2263
2264         * tree-ssa-dom.c (propagate_rhs_into_lhs): Temporarily work
2265         around bug in immediate-use iterator.
2266
2267 2006-03-24  Alan Modra  <amodra@bigpond.net.au>
2268
2269         PR target/26607
2270         * config/rs6000/darwin-ldouble.c: Don't compile when __NO_FPRS__
2271         or __LITTLE_ENDIAN__.
2272
2273 2006-03-23  J"orn Rennecke <joern.rennecke@st.com>
2274
2275         * config/sh/divtab-sh4.c, config/sh/divcost-analysis: New files.
2276         * config/sh/lib1funcs.asm (div_table): Add !__SH5__ variant.
2277         * config/sh/t-sh (LIB1ASMFUNCS): Add _div_table.
2278         * config/sh/sh.opt (mdiv=): Amend description.
2279         * config/sh/sh.h (TARGET_DIVIDE_CALL_DIV1): New macro.
2280         (TARGET_DIVIDE_CALL_FP, TARGET_DIVIDE_CALL_TABLE): Likewise.
2281         (sh_divide_strategy_e): Add new members SH_DIV_CALL_DIV1,
2282         SH_DIV_CALL_FP, SH_DIV_CALL_TABLE and SH_DIV_INTRINSIC.
2283         (OVERRIDE_OPTIONS): Also process sh_div_str for TARGET_SH1.
2284         Calculate sh_divsi3_libfunc using TARGET_DIVIDE_* macros.
2285         * config/sh/sh.md (udivsi3_i4_int, divsi3_i4_int): New patterns.
2286         (udivsi3, divsi3): Use them.  Check TARGET_DIVIDE_CALL_TABLE /
2287         TARGET_DIVIDE_CALL_FP.
2288
2289 2006-03-23  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
2290
2291         * haifa-sched.c (choose_ready): Fix type of the local variable.
2292         Move local variables.  Add comment.
2293         (check_reg_live): Change signature.  Make callable from debugger.
2294         * sched-int.h (check_reg_live): Update signature.
2295         * sched-ebb.c (check_reg_live): Update parameters.
2296         * sched-rgn.c (check_reg_live): Ditto.
2297         (region_head_or_leaf_p): Check pointer before dereferencing.
2298         * config/ia64/ia64.c (ia64_set_sched_flags): Disable data speculation
2299         before reload on optimization levels below 1.
2300
2301 2006-03-23  Richard Henderson  <rth@redhat.com>
2302
2303         * config/alpha/alpha.c (alpha_legitimate_constant_p): Reject
2304         tls symbols.
2305
2306         PR target/26347
2307         * config/alpha/predicates.md (local_symbolic_operand): Reject
2308         weak symbols.
2309
2310 2006-03-23  Andrew Pinski  <pinskia@physics.uc.edu>
2311
2312         PR tree-opt/26795
2313         * tree-ssa-pre.c (create_value_expr_from): Don't reject
2314         expressions which have overflowed constants.
2315
2316 2006-03-23  Zdenek Dvorak <dvorakz@suse.cz>
2317
2318         * cse.c (cse_end_of_basic_block): Do not check for LOOP_END note.
2319
2320 2006-03-23  Zdenek Dvorak <dvorakz@suse.cz>
2321
2322         * cfgloopmanip.c (create_loop_notes): Removed.
2323         * final.c (final_scan_insn): Do not handle loop notes.
2324         * jump.c (squeeze_notes): Ditto.
2325         * cfglayout.c (skip_insns_after_block,
2326         duplicate_insn_chain): Ditto.
2327         * cfgcleanup.c (rest_of_handle_jump2): Do not call
2328         create_loop_notes.
2329         * cfgloop.h (create_loop_notes): Declaration removed.
2330
2331 2006-03-23  Richard Sandiford  <richard@codesourcery.com>
2332
2333         * varasm.c (output_constant_pool): Restore fnname and fndecl
2334         arguments.
2335         (assemble_start_function): Adjust call accordingly.
2336         (assemble_end_function): Likewise.
2337
2338 2006-03-22  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
2339
2340         PR mudflap/26789
2341         * tree-mudflap.c (mudflap_finish_file): Skip erroneous objects.
2342
2343         PR mudflap/26790
2344         * tree-mudflap.c (mf_xform_derefs_1): Return early on error_mark_node.
2345
2346 2006-03-22  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
2347
2348         PR driver/22600
2349         * system.h (ICE_EXIT_CODE): New macro.
2350         * diagnostic.c (diagnostic_count_diagnostic): Exit with ICE_EXIT_CODE.
2351         (diagnostic_action_after_output): Likewise.
2352         * gcc.c (fatal_ice): New function.
2353         (execute): Use it instead of fatal.
2354         (fancy_abort): Likewise.
2355         * doc/invoke.texi (-pass-exit-codes): Document return code for ICEs.
2356
2357 2006-03-22  Jeff Law  <law@redhat.com>
2358
2359         * loop-unroll.c (analyze_iv_to_split_insn): Handle
2360         iv_analyze_result returning false.
2361
2362 2006-03-22  Jie Zhang  <jie.zhang@analog.com>
2363
2364         * config/bfin/bfin.h (ASM_FORMAT_PRIVATE_NAME): Remove.
2365
2366 2006-03-22  Richard Henderson  <rth@redhat.com>
2367
2368         PR middle-end/26084
2369         * except.c (duplicate_eh_regions_0): New.
2370         (duplicate_eh_region_1): Duplicate the children of the node as
2371         well as the node itself.  Link them up properly.
2372         (duplicate_eh_region_2): Merge into ...
2373         (duplicate_eh_regions): ... here.  Take copy_region argument, and
2374         copy only a sub-tree if asked.  Simplify copying and fixup.
2375         (eh_region_outer_p): New.
2376         * except.h (duplicate_eh_regions): Update decl.
2377         (eh_region_outer_p): Declare.
2378         * omp-low.c (lower_omp_single): Fix eh region placement wrt OMP_RETURN.
2379         (lower_omp_master): Likewise.
2380         (lower_omp_ordered): Likewise.
2381         * tree-cfg.c (struct move_stmt_d): Add new_label_map.
2382         (move_stmt_r): Use it to remap labels.  Handle recursion vs
2383         remap_decls_p properly.
2384         (move_block_to_fn): Pass in new_label_map.  Remap RESX_EXPR.
2385         (find_outermost_region_in_block): New.
2386         (new_label_mapper): New.
2387         (move_sese_region_to_fn): Copy eh information to the new function
2388         properly.
2389         * tree-inline.c (copy_cfg_body): Update for new duplicate_eh_regions
2390         argument.
2391         * tree-pretty-print.c (dump_generic_node): Dump RESX_EXPR region
2392         number.
2393
2394 2006-03-22  Richard Sandiford  <richard@codesourcery.com>
2395
2396         * doc/md.texi (-mshared): Mention that -mshared code can be linked
2397         into shared libraries.
2398
2399 2006-03-22  Richard Sandiford  <richard@codesourcery.com>
2400
2401         * doc/md.texi: Refer to i386/constraints.md instead of
2402         i386/predicates.md.
2403         * config/i386/constraints.md: New file, extracted from...
2404         * config/i386/predicates.md: ...here.
2405         * config/i386/i386.md: Include constraints.md.
2406
2407 2006-03-21  Jason Merrill  <jason@redhat.com>
2408
2409         * builtins.c (expand_builtin_fork_or_exec): Fix pasto.
2410
2411         PR middle-end/20297
2412         * expr.c (init_block_move_fn): Force default visibility.
2413         (init_block_clear_fn): Likewise.
2414         * builtins.c (expand_builtin_fork_or_exec): Likewise.
2415         * targhooks.c (default_external_stack_protect_fail): Likewise.
2416
2417 2006-03-21  Richard Sandiford  <richard@codesourcery.com>
2418
2419         * config/mips/predicates.md (const_call_insn_operand): Allow direct
2420         calls to locally-defined functions if TARGET_ABSOLUTE_ABICALLS.
2421         * config/mips/mips.md (jal_macro): Test TARGET_ABSOLUTE_ABICALLS.
2422         Use TARGET_OLDABI instead of !TARGET_NEWABI.
2423         (loadgp): Use mips_current_loadgp_style.
2424         (loadgp_noshared): New pattern.
2425         (sibcall_internal): Use MIPS_CALL.
2426         (sibcall_value_internal): Likewise.
2427         (sibcall_value_multiple_internal): Likewise.
2428         (call_internal): Likewise.
2429         (call_value_internal): Likewise.
2430         (call_value_multiple_internal): Likewise.
2431         (call_split): Use MIPS_CALL and add an 'S' constraint.
2432         (call_value_split): Likewise.
2433         (call_value_multiple_split): Likewise.
2434         * config/mips/mips.opt (-mabicalls): Tweak docstring.
2435         (-mshared): New option.
2436         * config/mips/mips-protos.h (mips_loadgp_style): New enum.
2437         (mips_current_loadgp_style): Declare.
2438         * config/mips/mips.c (mips_classify_symbol): Avoid using
2439         SYMBOL_GOT_LOCAL if TARGET_ABSOLUTE_ABICALLS.  Use SYMBOL_GENERAL
2440         rather than SYMBOL_GOT_GLOBAL for locally-binding symbols if
2441         TARGET_ABSOLUTE_ABICALLS.
2442         (override_options): Adjust comments.  Improve the warning that is
2443         issued when -mabicalls and -G are used together.
2444         (mips_file_start): Remove comment.
2445         (mips_current_loadgp_style): New function.
2446         (mips_gnu_local_gp): New variable.
2447         (mips_emit_loadgp): Use mips_current_loadgp_style.  Handle
2448         LOADGP_ABSOLUTE.
2449         (mips_output_function_prologue): Use mips_current_laodgp_style.
2450         (mips_expand_prologue): Call mips_emit_loadgp before emitting
2451         the cprestore instruction.
2452         (mips_extra_live_on_entry): Fix reversed test.  Don't make $25
2453         live for TARGET_ABSOLUTE_ABICALLS.
2454         * config/mips/mips.h (TARGET_ABSOLUTE_ABICALLS): New macro.
2455         (ASM_SPEC): Pass down -mshared and -mno-shared.
2456         (MIPS_CALL): New macro.
2457         * config/mips/netbsd.h (TARGET_OS_CPP_BUILTINS): Remove __ABICALLS__
2458         definition.
2459         * doc/invoke.texi (-mabicalls): Update documentation.
2460         (-mshared): Document.
2461
2462 2006-03-21  Steve Ellcey  <sje@cup.hp.com>
2463
2464         * config/ia64/unwind-hpux.c: New file.
2465         * config/ia64/t-hpux: Add unwind-hpux.c to libgcc.
2466
2467 2006-03-21  Steve Ellcey  <sje@cup.hp.com>
2468
2469         PR libgomp/26384
2470         * config/pa/pa64-hpux.h (LIB_SPEC): Fix for -mt and -pthread options.
2471
2472 2006-03-21  Jeff Law  <law@redhat.com>
2473
2474         * tree-vrp.c (extract_range_from_unary_expr): Derive ranges for
2475         type conversions of a VR_VARYING source to a wider type.
2476
2477 2006-03-21  Eric Botcazou  <ebotcazou@libertysurf.fr>
2478
2479         * config.gcc (i[34567]86-*-solaris2*): Add config/sol2-10.h to
2480         tm_file on Solaris 10 and later.
2481         (sparc64-*-solaris2*): Likewise.
2482         (sparc-*-solaris2*): Likewise.
2483         * config/sol26.h: Rename to config/sol2-6.h.
2484         * config/sol2-10.h: New file.
2485
2486 2006-03-21  Andrew Pinski  <pinskia@physics.uc.edu>
2487
2488         PR tree-opt/26781
2489         * tree-ssa-pre.c (create_component_ref_by_pieces):
2490         Handle STRING_CST.
2491
2492 2006-03-21  Jakub Jelinek  <jakub@redhat.com>
2493
2494         PR c++/26690
2495         * tree.c (get_callee_fndecl): If CALL is error_mark_node,
2496         return it immediately.
2497
2498 2006-03-21  Michael Matz  <matz@suse.de>
2499
2500         * genautomata.c (<struct state>, num_out_arcs, presence_signature):
2501         New members.
2502         (remove_arc, add_arc): Update num_out_arcs member.
2503         (set_out_arc_insns_equiv_num): Returns nothing instead of number
2504         of out arcs.
2505         (cache_presence): New function.
2506         (compare_states_for_equiv): New function.
2507         (state_is_differed): Don't take number of outargs, adjust callers.
2508         Use new invariant for speeding up.
2509         (init_equiv_class): Create initial classes based on sorted
2510         input.
2511         (partition_equiv_class): Don't track out_arcs_num.
2512         (evaluate_equiv_classes): Call cache_presence on all states and
2513         sort them.
2514
2515 2006-03-21  Bernd Schmidt  <bernd.schmidt@analog.com>
2516
2517         * config/bfin/bfin-protos.h (bfin_dsp_memref_p): Declare.
2518         * config/bfin/bfin.c (bfin_dsp_memref_p): New function.
2519         (bfin_valid_reg_p): Test for pseudos explicitly and use only
2520         REGNO_MODE_CODE_OK_FOR_BASE_P.  New args MODE and OUTER_CODE; all
2521         callers changed.
2522         * config/bfin/bfin.h (PREG_P): Use P_REGNO_P.
2523         (IREG_P, P_REGNO_P, I_REGNO_P): New macros.
2524         (enum reg_class, REG_CLASS_CONTENTS): Add IPREGS.
2525         (BASE_REG_CLASS, REG_OK_FOR_BASE_P, REG_OK_FOR_INDEX_P,
2526         REGNO_OK_FOR_BASE_STRICT_P, REGNO_OK_FOR_BASE_NONSTRICT_P): Delete
2527         macros.
2528         (IREG_POSSIBLE_P, MODE_CODE_BASE_REG_CLASS,
2529         REGNO_MODE_CODE_OK_FOR_BASE_P): New macros.
2530         (REGNO_REG_CLASS): ARGP is in PREGS.
2531         * config/bfin/bfin.md (movhi_insn): Allow for addresses containing
2532         IREGS.
2533         (zero_extendhisi2, extendhisi2): Likewise; changed to define_and_split
2534         to deal with those addresses.
2535         * addresses.h: New file.
2536         * caller-save.c: Include "addresses.h".
2537         (init_caller_save): Use new base_reg_class function.
2538         * rtl-factoring.c: Include "addresses.h".
2539         (recompute_gain_for_pattern_seq): Use new function ok_for_base_p_1.
2540         * recog.c: Include "addresses.h".
2541         (preprocess_constraints): Use new base_reg_class function.
2542         * regrename.c: Include "addresses.h".
2543         (scan_rtx_address): Use new regno_ok_for_base_p and base_reg_class
2544         functions.  Keep track of a new var INDEX_CODE to compute valid
2545         classes.
2546         (replace_oldest_value_addr): Likewise.
2547         (replace_oldest_value_mem): Use base_reg_class.
2548         * reload.c: Include "addresses.h".
2549         (REGNO_MODE_OK_FOR_BASE_P, REG_MODE_OK_FOR_BASE_P): Delete macros.
2550         (find_reloads): Use new base_reg_class function.
2551         (find_reloads_address): Likewise; also use regno_ok_for_base_p.
2552         (find_reloads_address_1): Likewise. New args OUTER_CODE and INDEX_CODE;
2553         all callers and prototype changed.
2554         * reload1.c: Include "addresses.h".
2555         (maybe_fix_stack_asms): Use base_reg_class.
2556         * regclass.c: Include "addresses.h".
2557         (ok_for_index_p_nonstrict, ok_for_base_p_nonstrict): New functions.
2558         (init_reg_autoinc): Use new base_reg_class function.
2559         (record_reg_classes): Likewise.
2560         (record_address_regs): Delete arg CLASS; add args CONTEXT, MODE,
2561         OUTER_CODE and INDEX_CODE.  All callers and prototype changed.
2562         Use new args to compute necessary class.
2563
2564         * Makefile.in (regclass.o, reload.o, reload1.o, caller-save.o, recog.o,
2565         regrename.o, rtl-factoring.o): Update dependencies.
2566         * doc/tm.texi (MODE_CODE_BASE_REG_CLASS): Document.
2567         (REGNO_MODE_CODE_OK_FOR_BASE_P): Likewise.
2568         (REG_OK_FOR_BASE_P, REG_MODE_OK_FOR_BASE_P, REG_MODE_OK_FOR_REG_BASE_P,
2569         REG_OK_FOR_INDEX_P): Delete documentation.
2570
2571 2006-03-21  Alexey Starovoytov  <alexey.starovoytov@sun.com>
2572
2573         * config.gcc (sparc-*-solaris2*): Change the default CPU setting
2574         from V7 to V9 for Solaris 7 and above.
2575
2576 2006-03-21  Toon Moene  <toon@moene.indiv.nluug.nl>
2577
2578         * doc/invoke.texi: Document new flag -fargument-noalias-anything.
2579         * tree-ssa-alias.c (may_alias_p): If flag_argument_noalias > 2,
2580         argument pointers may not alias any other storage.
2581         * common.opt: Define option -fargument-noalias-anything.
2582         * tree-ssa-structalias.c (intra_create_variable_infos): Fortran
2583         alias semantics is specified by flag_argument_noalias > 2.
2584
2585 2006-03-20  Jeff Law  <law@redhat.com>
2586
2587         * tree-pass.h (pass_phi_only_copy_prop): Delete.
2588         (pass_phi_only_cprop): Declare.
2589         * passes.c (init_optimization_passes): Replace pass_phi_only_copy_prop
2590         with phi_only_cprop
2591         * tree-ssa-dom.c (degenerate_phi_result): New function.
2592         (remove_stmt_or_phi, get_lhs_or_phi_result): Likewise.
2593         (get_rhs_or_phi_arg, propagate_rhs_into_lhs): Likewise.
2594         (eliminate_const_or_copy, eliminate_degenerate_phis_1): Likewise.
2595         (eliminate_degenerate_phis): Likewise.
2596         (pass_phi_only_cprop): New pass descriptor.
2597         * tree-ssa-copy.c (init_copy_prop): Lose PHIS_ONLY argument and
2598         support code.  Callers updated.
2599         (execute_copy_prop, do_copy_prop): Likewise and corresponding changes.
2600         (store_copy_prop): Likewise.
2601         (do_phi_only_copy_prop, pass_phi_only_copy_prop): Remove.
2602
2603 2006-03-20  Jason Merrill  <jason@redhat.com>
2604
2605         PR c++/21764
2606         * c-pragma.c (visstack): Move out of handle_pragma_visibility.
2607         (push_visibility, pop_visibility): Likewise.
2608         * c-pragma.h: Declare them.
2609
2610 2006-03-20  Kaz Kojima  <kkojima@gcc.gnu.org>
2611
2612         * config/sh/sh.c (untangle_mova): Initialize n_addr and n_target.
2613
2614         * config/sh/sh.c (find_regmode_weight): Change the type of the first
2615         parameter and use get_ebb_head_tail.
2616         (sh_md_init_global): Adjust uses of find_regmode_weight.
2617
2618 2006-03-20  Steven Bosscher  <stevenb.gcc@gmail.com>
2619
2620         * function.h (struct function) <x_tail_recursion_reentry>:
2621         Rename to x_stack_check_probe_note.
2622         (tail_recursion_reentry): Rename to stack_check_probe_note.
2623         * function.c: Replace tail_recursion_reentry with
2624         stack_check_probe_note everywhere.
2625         (expand_function_start): Only emit a note for
2626         stack_check_probe_note with -fstack-protect.
2627         * stmt.c (expand_case): Don't emit NOTE_INSN_DELETED notes.
2628
2629         * emit-rtl.c (remove_unnecessary_notes): Remove.
2630         (pass_remove_unnecessary_notes): Remove.
2631         * rtl.h (remove_unnecessary_notes): Remove prototype.
2632         * final.c (final_start_function): Don't call remove_unnecessary_notes.
2633         * tree-pass.h (pass_remove_unnecessary_notes): Remove.
2634         * passes.c (pass_remove_unnecessary_notes): Don't run it.
2635
2636 2006-03-20  Andrew Pinski  <pinskia@physics.uc.edu>
2637
2638         PR tree-opt/26629
2639         * tree-ssa-pre (phi_translate): Handle ARRAY_REF's operands.
2640         (valid_in_set): Handle ARRAY_REF.
2641         Change "if min_variant or VH" to asserts.
2642         (create_component_ref_by_pieces): Handle ARRAY_REF.
2643         (create_expression_by_pieces): Likewise.
2644         (can_PRE_operation): ARRAY_REFs can now be PRE'd.
2645
2646 2006-03-20  David Edelsohn  <edelsohn@gnu.org>
2647
2648         * genpreds.c (write_insn_extra_address_constraint): Argument `c'
2649         is operand of switch, not str[0].
2650
2651 2006-03-20  Alan Modra  <amodra@bigpond.net.au>
2652
2653         * config/rs6000/rs6000.c (rs6000_handle_option): Use
2654         TARGET_NO_FP_IN_TOC inside #ifdef TARGET_USES_SYSV4_OPT too.
2655
2656 2006-03-19  David Edelsohn  <edelsohn@gnu.org>
2657
2658         * genpreds.c (write_tm_preds_h): Add semicolon and newline at
2659         end of insn_extra_address_constraint declaration.
2660
2661 2006-03-19  David Edelsohn  <edelsohn@gnu.org>
2662
2663         * config/rs6000/rs6000.opt (no-fp-in-toc): Use Var not Mask.
2664         (no-sum-in-toc): Same.
2665         * config/rs6000/rs6000.c (rs6000_handle_option): Use new
2666         variables.
2667         * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): Set
2668         NO_FP_IN_TOC for -fPIC instead of mask.
2669
2670         * config/rs6000/t-aix43 (T_ADAFLAGS): Delete.
2671         (BOOT_LDFLAGS): Delete.
2672         (LDFLAGS): Delete.
2673         * config/rs6000/t-aix52: Same.
2674
2675         * config/rs6000/rs6000.md (store_multiple_power): Delete.
2676         (stmsi[345678]_power): New.
2677
2678 2006-03-17  Steve Ellcey  <sje@cup.hp.com>
2679
2680         * config/ia64/ia64.opt: Add empty line to end of file.
2681
2682 2006-03-17  Richard Guenther  <rguenther@suse.de>
2683
2684         PR middle-end/26721
2685         * builtins.c (get_pointer_alignment): For component style references
2686         adjust alignment to the component type alignment.  Make sure
2687         to adjust alignment for component access of constants.
2688
2689 2006-03-17  David Edelsohn  <edelsohn@gnu.org>
2690
2691         * config/rs6000/rs6000.md (strlensi): Emit barrier after
2692         unconditional jump.
2693
2694 2006-03-17  Paul Brook  <paul@codesourcery.com>
2695
2696         * doc/install.texi: Docuemnt --with-mode.
2697         * config.gcc: Add --with-mode for arm*-*-*.
2698         * config/arm/arm.h (OPTION_DEFAULT_SPECS): Add "mode".
2699
2700 2006-03-17  J"orn Rennecke <joern.rennecke@st.com>
2701
2702         * sh.c (max_labelno_before_reorg): New variable.
2703         (sh_reorg): Initialize it.
2704         (find_barrier): Check max_labelno_before_reorg before using
2705         label_to_alignment.  Take length of explicit alignment insns
2706         into account.  When seeing a UNSPECV_CONST_END, return it.
2707
2708         * sh.c (fixup_mova): Set mode of affected label to QImode.
2709         (untangle_mova): New function.
2710         (find_barrier): Use it.  Check mode of label before decrementing
2711         num_mova.
2712         (sh_reorg): Likewise.
2713         Set mode of all insns back to VOIDmode.
2714
2715         * sh.c (MOVA_LABELREF): New macro.
2716         (mova_p, fixup_mova, sh_reorg): Use it.
2717         (find_barrier, sh_reorg): Don't count num_mova back to 0 unless
2718         ADDR_DIFF_VEC matches mova.
2719
2720 2006-03-17  Steven Bosscher  <stevenb.gcc@gmail.com>
2721
2722         * dwarf2asm.c (dw2_asm_output_offset): Mark 'base' argument
2723         with ATTRIBUTE_UNUSED.
2724
2725 2006-03-17  Alexandre Oliva  <aoliva@redhat.com>
2726
2727         * dwarf2out.c (dwarf2out_stack_adjust): Always track the stack
2728         pointer, instead of assuming it is possible to derive the
2729         correct args size from a call insn.
2730
2731 2006-03-16  Jan-Benedict Glaw  <jbglaw@lug-owl.de>
2732
2733         * rtl.h (CONST_INT_P): Define.
2734         * config/vax/vax.c (print_operand_address): Use CONST_INT_P()
2735         instead of GET_CODE(x) == CONST_INT.
2736         (vax_rtx_costs): Likewise.
2737         (vax_output_int_move): Likewise.
2738         (vax_output_int_add): Likewise.
2739         (legitimate_constant_address_p): Likewise.
2740         (index_term_p): Likewise.
2741         * config/vax/vax.h (PRINT_OPERAND): Likewise.
2742         * config/vax/vax.md (and<mode>3): Likewise.
2743         (ashrsi3): Likewise.
2744         (extv): Likewise.
2745         (movstricthi): Likewise.
2746         (movstrictqi): Likewise.
2747         (rotrsi3): Likewise.
2748         (five unnamed insns): Likewise.
2749
2750 2006-03-16  Geoffrey Keating  <geoffk@apple.com>
2751
2752         * doc/tm.texi (SDB and DWARF): Add extra parameter to
2753         ASM_OUTPUT_DWARF_OFFSET.  Use @var to indicate metavariables.
2754         * dwarf2asm.h (dw2_asm_output_offset): Add section parameter.
2755         * dwarf2asm.c (dw2_asm_output_offset): Add base section parameter.
2756         Pass to ASM_OUTPUT_DWARF_OFFSET.
2757         * dwarf2out.c (debug_frame_section): New.
2758         (output_call_frame_info): Use debug_frame_section.  Pass it to
2759         dw2_asm_output_offset.
2760         (output_die): Pass appropriate section to dw2_asm_output_offset.
2761         (output_compilation_unit_header): Likewise.
2762         (output_pubnames): Likewise.
2763         (output_aranges): Likewise.
2764         (enum dw_val_class): Break dw_val_class_lbl_offset into
2765         dw_val_class_lineptr and dw_val_class_macptr.
2766         (add_AT_lbl_offset): Delete.
2767         (add_AT_lineptr): New.
2768         (add_AT_macptr): New.
2769         (AT_lbl): Expect a lineptr or macptr.
2770         (print_die): Handle dw_val_class_lineptr and dw_val_class_macptr.
2771         (attr_checksum): Likewise.
2772         (same_dw_val_p): Likewise.
2773         (size_of_die): Likewise.
2774         (value_format): Likewise.
2775         (output_die): Likewise.
2776         (dwarf2out_finish): Call add_AT_lineptr and add_AT_macptr instead of
2777         add_AT_lbl_offset.
2778         * config/i386/cygming.h (ASM_OUTPUT_DWARF_OFFSET): Add extra parameter.
2779         * config/i386/i386.c (x86_file_start): Call darwin_file_start.
2780         * config/darwin-protos.h (darwin_file_start): New.
2781         (darwin_asm_output_dwarf_offset): New.
2782         * config/ia64/ia64.h (ASM_OUTPUT_DWARF_OFFSET): Add extra parameter.
2783         * config/rs6000/rs6000.c (rs6000_darwin_file_start): Call
2784         darwin_file_start.
2785         * config/darwin.c (darwin_emit_unwind_label): Don't output label
2786         if not EH section; simplify.
2787         (darwin_file_start): New.
2788         (darwin_asm_output_dwarf_offset): New.
2789         * config/darwin.h (DEBUG_FRAME_SECTION): In __DWARF segment,
2790         mark as 'debug'.
2791         (DEBUG_INFO_SECTION): Likewise.
2792         (DEBUG_ABBREV_SECTION): Likewise.
2793         (DEBUG_ARANGES_SECTION): Likewise.
2794         (DEBUG_MACINFO_SECTION): Likewise.
2795         (DEBUG_LINE_SECTION): Likewise.
2796         (DEBUG_LOC_SECTION): Likewise.
2797         (DEBUG_PUBNAMES_SECTION): Likewise.
2798         (DEBUG_STR_SECTION): Likewise.
2799         (DEBUG_RANGES_SECTION): Likewise.
2800         (FRAME_BEGIN_LABEL): Must start with 'L' in debug section.
2801         (ASM_OUTPUT_DWARF_OFFSET): New.
2802
2803 2006-03-16  Joseph S. Myers  <joseph@codesourcery.com>
2804
2805         * config.gcc (tm_defines): Always add to previous value rather
2806         than replacing it.
2807
2808 2006-03-16  Richard Sandiford  <richard@codesourcery.com>
2809
2810         * config/mips/predicates.md (splittable_const_int_operand): New,
2811         split from move_operand.
2812         (splittable_symbolic_operand): New.
2813         (move_operand): Add commentary.  Use splittable_const_int_operand.
2814         Inline mips_atomic_symbolic_constant_p.
2815         * config/mips/mips.md: Add combine splitters for handling moves
2816         of splittable_const_int_operands and splittable_symbolic_operands.
2817         * config/mips/mips-protos.h (mips_atomic_symbolic_constant_p): Delete.
2818         (mips_split_symbol): Declare.
2819         (mips_move_integer): Declare.
2820         * config/mips/mips.c (mips_split_p): Make global.
2821         (TARGET_MIN_ANCHOR_OFFSET): Override default.
2822         (TARGET_MAX_ANCHOR_OFFSET): Likewise.
2823         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Likewise.
2824         (TARGET_USE_ANCHORS_FOR_SYMBOL_P): Likewise.
2825         (mips_offset_within_object_p): Handle block symbols.
2826         (mips_atomic_symbolic_constant_p): Delete.
2827         (mips_cannot_force_const_mem): Return false for constants that
2828         mips_legitimize_move can handle.
2829         (mips_use_blocks_for_constant_p): New function.
2830         (mips_split_symbol): Make global.
2831         (mips_move_integer): Likewise.  Add a temporary register argument.
2832         (mips_legitimize_const_move): Use splittable_const_int_operand and
2833         splittable_symbolic_operand.
2834         (mips_use_anchors_for_symbol_p): New function.
2835         * config/mips/mips.h: Protect externs with !USED_FOR_TARGET.
2836         (mips_split_p): Declare.
2837
2838 2006-03-16  Richard Sandiford  <richard@codesourcery.com>
2839
2840         * config.gcc (mips64*-*-linux*): Keep existing tm_defines.
2841         (mips*-*-linux*): Likewise.
2842
2843 2006-03-16  Roger Sayle  <roger@eyesopen.com>
2844             Daniel Speyer  <dspeyer@wam.umd.edu>
2845
2846         PR middle-end/18259
2847         * tree-dump.c (dump_real): New function.
2848         (dequeue_and_dump) <REAL_CST>: Use it to dump FP constants.
2849         * Makefile.in (REAL_H): New macro for dependencies on real.h.
2850         (tree-dump.o): Add $(REAL_H) to the dependencies.
2851
2852 2006-03-16  Roger Sayle  <roger@eyesopen.com>
2853
2854         PR middle-end/21781
2855         * real.c (real_from_string): If the mantissa is zero, don't bother
2856         parsing the exponent as the result should always be zero.
2857
2858 2006-03-16  Andreas Krebbel  <krebbel1@de.ibm.com>
2859
2860         * simplify-rtx.c (simplify_plus_minus): Simplify within CONST terms.
2861
2862 2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>
2863
2864         * config/ia64/ia64.c (stops_p): Added explicit initialization.
2865         (ia64_first_cycle_multipass_dfa_lookahead_guard_spec,
2866         ia64_h_i_d_extended, ia64_set_sched_flags, ia64_speculate_insn,
2867         ia64_needs_block_p, ia64_gen_check, ia64_sched_init_global,
2868         ia64_sched_finish_global): New static functions to implement
2869         hooks from gcc_target.sched.
2870         (spec_check_no, max_uid, pending_data_specs): New static variables.
2871         (ia64_mode_to_int, ia64_gen_spec_insn, ia64_spec_check_p,
2872         ia64_spec_check_src_p): New static functions.
2873         (ia64_adjust_cost): Renamed to ia64_adjust_cost_2.
2874         (TARGET_SCHED_ADJUST_COST): Removed.
2875         (TARGET_SCHED_ADJUST_COST_2, TARGET_SCHED_INIT_GLOBAL,
2876         TARGET_SCHED_FINISH_GLOBAL, TARGET_SCHED_H_I_D_EXTENDED,
2877         TARGET_SCHED_SPECULATE_INSN, TARGET_SCHED_NEEDS_BLOCK_P,
2878         TARGET_SCHED_GEN_CHECK,
2879         TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD_SPEC,
2880         TARGET_SCHED_SET_SCHED_FLAGS): New macros.
2881         (update_set_flags, group_barrier_needed, set_src_needs_barrier):
2882         Fixed to handle speculation checks.
2883         (rtx_needs_barrier): Fixed to handle speculative loads and
2884         their checks.
2885         (ia64_variable_issue): Added code to count speculative loads and their
2886         checks.
2887         (ia64_first_cycle_multipass_dfa_lookahead_guard): Fixed to handle
2888         speculative loads.
2889         (enum SPEC_MODES, enum SPEC_GEN_LD_MAP, SPEC_GEN_CHECK_OFFSET):
2890         New enumerations.
2891         (SPEC_GEN_EXTEND_OFFSET, SPEC_N, SPEC_GEN_CHECK_MUTATION_OFFSET):
2892         New constants.
2893         (ia64_ld_address_bypass_p): Fixed to handle speculative loads.
2894         (ia64_reorg): Reset stops_p to NULL after it is freed.
2895         * config/ia64/ia64.md (UNSPEC_LDA, UNSPEC_LDS, UNSPEC_LDSA,
2896         UNSPEC_LDCCLR, UNSPEC_CHKACLR, UNSPEC_CHKS): New constants.
2897         (itanium_class): chk_s renamed to chk_s_i.  New constants: chk_s_f,
2898         chk_a.
2899         (data_speculative, control_speculative, check_load): New attributes.
2900         (mov<mode>_advanced, mov<mode>_speculative,
2901         mov<mode>_speculative_advanced, zero_extend<mode>di2_advanced,
2902         zero_extend<mode>di2_speculative,
2903         zero_extend<mode>di2_speculative_advanced): New patterns for
2904         data and control speculative loads.
2905         (mov<mode>_clr, zero_extend<mode>di2_clr): New patterns for
2906         check loads.
2907         (advanced_load_check_clr_<mode>, speculation_check_<mode>):
2908         New pattern for data and control speculation checks.
2909         (MODE, MODE_FOR_EXTEND, output_a, output_s, output_sa, output_c_clr,
2910         ld_reg_constr, ldc_reg_constr, chk_reg_constr, mem_constr,
2911         reg_pred_prefix, ld_class, chka_class, chks_class, attr_yes):
2912         Auxiliary definitions for the patterns.
2913         * config/ia64/itanium1.md (1_fldc, 1_fldpc, 1_ldc, 1_chk_s_f, 1_chk_a,
2914         1b_fldc, 1b_fldpc, 1b_ldc, 1b_chk_s_f, 1b_chk_a): New resource
2915         constraints.
2916         (1_fld, 1_fldp, 1_ld, 1b_fld, 1b_fldp, 1b_ld): Add a condition
2917         for speculation.
2918         (1_chk_s, 1b_chk_s): Renamed to 1_chk_s_i, 1b_chk_s_i.
2919         * config/ia64/itanium2.md (2_flda, 2_fldc, 2_fldpc, 2_ldc, 2_chk_s_f,
2920         2_chk_a, 2b_flda, 2b_fldc, 2b_fldpc, 2b_ldc, 2b_chk_s_f, 2b_chk_a):
2921         New resource constraints.
2922         (2_fld, 2_fldp, 2_ld, 2b_fld, 2b_fldp, 2b_ld): Add a condition
2923         for speculation.
2924         (2_chk_s, 2b_chk_s): Renamed to 2_chk_s_i, 2b_chk_s_i.
2925         * config/ia64/ia64.opt (msched-br-data-spec, msched-ar-data-spec,
2926         msched-control-spec, msched-br-in-data-spec, msched-ar-in-data-spec,
2927         msched-in-control-spec, msched-ldc, msched-control-ldc,
2928         msched-spec-verbose, msched-prefer-non-data-spec-insns,
2929         msched-prefer-non-control-spec-insns,
2930         msched-count-spec-in-critical-path): New flags to tune speculative
2931         scheduling.
2932         * doc/invoke.texi (msched-br-data-spec, msched-ar-data-spec,
2933         msched-control-spec, msched-br-in-data-spec, msched-ar-in-data-spec,
2934         msched-in-control-spec, msched-ldc, msched-control-ldc,
2935         msched-spec-verbose, msched-prefer-non-data-spec-insns,
2936         msched-prefer-non-control-spec-insns,
2937         msched-count-spec-in-critical-path): Document new flags.
2938
2939 2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>
2940
2941         * target.h (struct spec_info_def): New opaque declaration.
2942         (struct gcc_target.sched): New fields: adjust_cost_2, h_i_d_extended,
2943         speculate_insn, needs_block_p, gen_check,
2944         first_cycle_multipass_dfa_lookahead_guard_spec, set_sched_flags.
2945         * target-def.h (TARGET_SCHED_ADJUST_COST_2,
2946         TARGET_SCHED_H_I_D_EXTENDED, TARGET_SCHED_SPECULATE_INSN,
2947         TARGET_SCHED_NEEDS_BLOCK_P, TARGET_SCHED_GEN_CHECK,
2948         TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD_SPEC,
2949         TARGET_SCHED_SET_SCHED_FLAGS): New macros to initialize fields in
2950         gcc_target.sched.
2951         (TARGET_SCHED): Use new macros.
2952         * rtl.h (copy_DEPS_LIST_list): New prototype.
2953         * sched-int.h (struct sched_info): Change signature of new_ready field,
2954         adjust all initializations. New fields: add_remove_insn,
2955         begin_schedule_ready, add_block, advance_target_bb, fix_recovery_cfg,
2956         region_head_or_leaf_p.
2957         (struct spec_info_def): New structure declaration.
2958         (spec_info_t): New typedef.
2959         (struct haifa_insn_data): New fields: todo_spec, done_spec, check_spec,
2960         recovery_block, orig_pat.
2961         (glat_start, glat_end): New variables declaraions.
2962         (TODO_SPEC, DONE_SPEC, CHECK_SPEC, RECOVERY_BLOCK, ORIG_PAT):
2963         New access macros.
2964         (enum SCHED_FLAGS): New constants: SCHED_RGN, SCHED_EBB,
2965         DETACH_LIFE_INFO, USE_GLAT.
2966         (enum SPEC_SCHED_FLAGS): New enumeration.
2967         (NOTE_NOTE_BB_P): New macro.
2968         (extend_dependency_caches, xrecalloc, unlink_bb_notes, add_block,
2969         attach_life_info, debug_spec_status, check_reg_live): New functions.
2970         (get_block_head_tail): Change signature to get_ebb_head_tail, adjust
2971         all uses in ddg.c, modulo-sched.c, haifa-sched.c, sched-rgn.c,
2972         sched-ebb.c
2973         (get_dep_weak, ds_merge): Prototype functions from sched-deps.c .
2974         * ddg.c (get_block_head_tail): Adjust all uses.
2975         * modulo-sched.c (get_block_head_tail): Adjust all uses.
2976         (sms_sched_info): Initialize new fields.
2977         (contributes_to_priority): Removed.
2978         * haifa-sched.c (params.h): New include.
2979         (get_block_head_tail): Adjust all uses.
2980         (ISSUE_POINTS): New macro.
2981         (glat_start, glat_end): New global variables.
2982         (spec_info_var, spec_info, added_recovery_block_p, nr_begin_data,
2983         nr_be_in_data, nr_begin_control, nr_be_in_control, bb_header,
2984         old_last_basic_block, before_recovery, current_sched_info_var,
2985         rgn_n_insns, luid): New static variables.
2986         (insn_cost1): New function.  Move logic from insn_cost to here.
2987         (find_insn_reg_weight1): New function.  Move logic from
2988         find_insn_reg_weight to here.
2989         (reemit_notes, move_insn, max_issue): Change signature.
2990         (move_insn1): Removed.
2991         (extend_h_i_d, extend_ready, extend_global, extend_all, init_h_i_d,
2992         extend_bb): New static functions to support extension of scheduler's
2993         data structures.
2994         (generate_recovery_code, process_insn_depend_be_in_spec,
2995         begin_speculative_block, add_to_speculative_block,
2996         init_before_recovery, create_recovery_block, create_check_block_twin,
2997         fix_recovery_deps): New static functions to support
2998         generation of recovery code.
2999         (fix_jump_move, find_fallthru_edge, dump_new_block_header,
3000         restore_bb_notes, move_block_after_check, move_succs): New static
3001         functions to support ebb scheduling.
3002         (init_glat, init_glat1, attach_life_info1, free_glat): New static
3003         functions to support handling of register live information.
3004         (associate_line_notes_with_blocks, change_pattern, speculate_insn,
3005         sched_remove_insn, clear_priorities, calc_priorities, bb_note,
3006         add_jump_dependencies): New static functions.
3007         (check_cfg, has_edge_p, check_sched_flags): New static functions for
3008         consistancy checking.
3009         (debug_spec_status): New function to call from debugger.
3010         (priority): Added code to handle speculation checks.
3011         (rank_for_schedule): Added code to distinguish speculative instructions.
3012         (schedule_insn): Added code to handle speculation checks.
3013         (unlink_other_notes, rm_line_notes, restore_line_notes, rm_other_notes):
3014         Fixed to handle ebbs.
3015         (move_insn): Added code to handle ebb scheduling.
3016         (max_issue): Added code to use ISSUE_POINTS of instructions.
3017         (choose_ready): Added code to choose between speculative and
3018         non-speculative instructions.
3019         (schedule_block): Added code to handle ebb scheduling and scheduling of
3020         speculative instructions.
3021         (sched_init): Initialize new variables.
3022         (sched_finish): Free new variables.  Print statistics.
3023         (try_ready): Added code to handle speculative instructions.
3024         * lists.c (copy_DEPS_LIST_list): New function.
3025         * sched-deps.c (extend_dependency_caches): New function.  Move logic
3026         from create_dependency_caches to here.
3027         (get_dep_weak, ds_merge): Make global.
3028         * genattr.c (main): Code to output prototype for
3029         dfa_clear_single_insn_cache.
3030         * genautomata.c (DFA_CLEAR_SINGLE_INSN_CACHE_FUNC_NAME): New macros.
3031         (output_dfa_clean_insn_cache_func): Code to output
3032         dfa_clear_single_insn_cache function.
3033         * sched-ebb.c (target_n_insns): Remove.  Adjust all users to use
3034         n_insns.
3035         (can_schedule_ready_p, fix_basic_block_boundaries, add_missing_bbs):
3036         Removed.
3037         (n_insns, dont_calc_deps, ebb_head, ebb_tail, last_bb):
3038         New static variables.
3039         (begin_schedule_ready, add_remove_insn, add_block1, advance_target_bb,
3040         fix_recovery_cfg, ebb_head_or_leaf_p): Implement hooks from
3041         struct sched_info.
3042         (ebb_sched_info): Initialize new fields.
3043         (get_block_head_tail): Adjust all uses.
3044         (compute_jump_reg_dependencies): Fixed to use glat_start.
3045         (schedule_ebb): Code to remove unreachable last block.
3046         (schedule_ebbs): Added code to update register live information.
3047         * sched-rgn.c (region_sched_info): Initialize new fields.
3048         (get_block_head_tail): Adjust all uses.
3049         (last_was_jump): Removed.  Adjust users.
3050         (begin_schedule_ready, add_remove_insn, insn_points, extend_regions,
3051         add_block1, fix_recovery_cfg, advance_target_bb, region_head_or_leaf_p):
3052         Implement new hooks.
3053         (check_dead_notes1): New static function.
3054         (struct region): New fields: dont_calc_deps, has_real_ebb.
3055         (RGN_DONT_CALC_DEPS, RGN_HAS_REAL_EBB): New access macros.
3056         (BB_TO_BLOCK): Fixed to handle EBBs.
3057         (EBB_FIRST_BB, EBB_LAST_BB): New macros.
3058         (ebb_head): New static variable.
3059         (debug_regions, contributes_to_priority): Fixed to handle EBBs.
3060         (find_single_block_regions, find_rgns, find_more_rgns): Initialize
3061         new fields.
3062         (compute_dom_prob_ps): New assertion.
3063         (check_live_1, update_live_1): Fixed to work with glat_start instead of
3064         global_live_at_start.
3065         (init_ready_list): New assertions.
3066         (can_schedule_ready_p): Split update code to begin_schedule_ready.
3067         (new_ready): Add support for BEGIN_CONTROL speculation.
3068         (schedule_insns): Fixed code that updates register live information
3069         to handle EBBs.
3070         (schedule_region): Fixed to handle EBBs.
3071         (init_regions): Use extend_regions and check_dead_notes1.
3072         * params.def (PARAM_MAX_SCHED_INSN_CONFLICT_DELAY,
3073         PARAM_SCHED_SPEC_PROB_CUTOFF): New parameters.
3074         * doc/tm.texi (TARGET_SCHED_ADJUST_COST_2, TARGET_SCHED_H_I_D_EXTENDED,
3075         TARGET_SCHED_SPECULATE_INSN, TARGET_SCHED_NEEDS_BLOCK_P,
3076         TARGET_SCHED_GEN_CHECK,
3077         TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD_SPEC,
3078         TARGET_SCHED_SET_SCHED_FLAGS): Document.
3079         * doc/invoke.texi (max-sched-insn-conflict-delay,
3080         sched-spec-prob-cutoff): Document.
3081
3082 2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>
3083
3084         * sched-int.h (struct haifa_insn_data): New fields: resolved_deps,
3085         inter_tick, queue_index.
3086         (struct sched_info): Change signature of init_ready_list field.
3087         Adjust all initializations.
3088         (RESOLVED_DEPS): New access macro.
3089         (ready_add): Remove prototype.
3090         (try_ready): Add prototype.
3091         * sched-rgn.c (init_ready_list): Use try_ready.
3092         (schedule_region): Initialize
3093         current_sched_info->{sched_max_insns_priority, queue_must_finish_empty}.
3094         * sched-ebb.c (new_ready): Remove.  Adjust ebb_sched_info.
3095         (init_ready_list): Use try_ready.
3096         (schedule_ebb): Initialize current_sched_info->sched_max_insns_priority.
3097         * lists.c (remove_list_elem): Remove `static'.
3098         (remove_free_INSN_LIST_elem): New function.
3099         * rtl.h (remove_list_elem, remove_free_INSN_LIST_elem): Add prototypes.
3100         * haifa-sched.c (INTER_TICK, QUEUE_INDEX): New macros.
3101         (INVALID_TICK, MIN_TICK, QUEUE_SCHEDULED, QUEUE_NOWHERE, QUEUE_READY):
3102         New constants.
3103         (readyp): New variable.
3104         (queue_remove, ready_remove_insn, fix_inter_tick, fix_tick_ready,
3105         change_queue_index, resolve_dep): New static functions.
3106         (try_ready): New function.  Adjust callers in sched-rgn.c and
3107         sched-ebb.c to use it instead of ready_add.
3108         (clock_var): Move at the begining of file.
3109         (rank_for_schedule): Fix typo.
3110         (queue_insn): Add assertion.  Handle QUEUE_INDEX.
3111         (ready_lastpos): Enforce assertion.
3112         (ready_add): Make it static.  Handle QUEUE_INDEX.  Add new argument,
3113         update all callers.
3114         (ready_remove_first, ready_remove): Handle QUEUE_INDEX.
3115         (schedule_insn): Rewrite to use try_ready and resolve_dep.
3116         (queue_to_ready): Use free_INSN_LIST_list.
3117         (early_queue_to_ready): Fix typo.
3118         (schedule_block): Init readyp.  Move init_ready_list call after the
3119         initialization of clock_var.  Fix error in rejecting insn by
3120         targetm.sched.dfa_new_cycle.  Add call to fix_inter_tick.  Remove code
3121         that previously corrected INSN_TICKs.  Add code for handling
3122         QUEUE_INDEX.
3123         (set_priorities): Fix typo.
3124         (sched_init): Initialize INSN_TICK, INTER_TICK and QUEUE_INDEX.
3125         Clarify comment and code that keeps current_sched_info->next_tail
3126         non-null.
3127
3128 2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>
3129
3130         * sched-rgn.c (extend_rgns): New static function.
3131         (find_rgns): Use it.
3132         (gather_region_statistics, print_region_statistics): New static
3133         functions.
3134         * params.def (PARAM_MAX_SCHED_EXTEND_REGIONS_ITERS): New parameter.
3135         * doc/invoke.texi (max-sched-extend-regions-iters): Document.
3136
3137 2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>
3138             Andrey Belevantsev <abel@ispras.ru>
3139
3140         * ddg.c (build_intra_loop_deps): Adjust add_forward_dependence call.
3141         * lists.c (unused_deps_list): New variable.
3142         (free_list): Add assertions to verify the proper distinguishing
3143         between INSN_LISTs and DEPS_LISTs.
3144         (find_list_elem, remove_list_elem, remove_list_node): New static
3145         functions.
3146         (alloc_DEPS_LIST, free_DEPS_LIST, free_DEPS_LIST_node,
3147         remove_free_INSN_LIST_elem, remove_free_DEPS_LIST_elem,
3148         remove_free_INSN_LIST_node, remove_free_DEPS_LIST_node): New functions.
3149         (alloc_INSN_LIST): Assert that the list we're working on is indeed
3150         an INSN_LIST.
3151         (free_INSN_LIST_node): Likewise.
3152         * modulo-sched.c (current_sched_info): Initialize flags field.
3153         * reg-notes.def: Exchange DEP_ANTI and DEP_OUTPUT.
3154         * rtl.def (DEPS_LIST): Define.
3155         * rtl.h: Declare new functions from lists.c.
3156         * sched-deps.c (spec_dependency_cache): New static variable.
3157         (maybe_add_or_update_back_dep_1, add_back_dep): New static functions.
3158         (add_dependence): Change return type to void.  Move the logic to ...
3159         (add_or_update_back_dep_1): ... here.  Handle speculative dependencies.
3160         (delete_all_dependences): Add comment about forward_dependency_cache.
3161         Handle spec_dependency_cache.  Handle DEPS_LISTs.
3162         (fixup_sched_groups): Clarify the change of priority of output
3163         and anti dependencies.
3164         (sched_analyze_2): Adjust add_dependence calls to create data
3165         speculative dependence.
3166         (add_forward_dependence): Renamed to add_forw_dep, change prototype.
3167         Adjust all callers.  Handle DEPS_LISTS.
3168         (compute_forward_dependences): Use add_forw_dep.  Sort LOG_LINKs in
3169         presence of speculation.
3170         (init_dependency_caches, free_dependency_caches):
3171         Handle spec_dependency_cache.
3172         (adjust_add_sorted_back_dep, adjust_back_add_forw_dep, delete_forw_dep,
3173         estimate_dep_weak, get_dep_weak, ds_merge, check_dep_status):
3174         New static functions.
3175         (add_or_update_back_dep, add_or_update_back_forw_dep,
3176         add_back_forw_dep, delete_back_forw_dep): New functions.
3177         * sched-int.h (ds_t, dw_t): New typedefs.
3178         (struct sched_info): Add new field flags.
3179         (struct haifa_insn_data): Add new bitfield has_internal_dep.
3180         Prototype new sched-deps.c functions.
3181         (HAS_INTERNAL_DEP, DEP_STATUS): New access macros.
3182         (BITS_PER_DEP_STATUS, BITS_PER_DEP_WEAK, DEP_WEAK_MASK, MAX_DEP_WEAK,
3183         MIN_DEP_WEAK, NO_DEP_WEAK, UNCERTAIN_DEP_WEAK, BEGIN_DATA, BE_IN_DATA,
3184         BEGIN_CONTROL, BE_IN_CONTROL, BEGIN_SPEC, DATA_SPEC, CONTROL_SPEC,
3185         SPECULATIVE, BE_IN_SPEC, FIRST_SPEC_TYPE, LAST_SPEC_TYPE,
3186         SPEC_TYPE_SHIFT, DEP_TRUE, DEP_OUTPUT, DEP_ANTI, DEP_TYPES, HARD_DEP):
3187         New constants.
3188         (enum SPEC_TYPES_OFFSETS, enum DEPS_ADJUST_RESULT, enum SCHED_FLAGS):
3189         New enums.
3190         * sched-rgn.c (current_sched_info): Initialize flags field.
3191         (schedule_insns): Initialize current_sched_info before the sched_init
3192         call.
3193         * sched-ebb.c (current_sched_info): Initialize flags field.
3194         (add_deps_for_risky_insns): Use control_flow_insn_p instead of JUMP_P.
3195         Call add_or_update_back_dep instead of add_dependence.
3196         Create control speculative dependencies.
3197         (schedule_insns): Initialize current_sched_info before the sched_init
3198         call.
3199
3200 2006-03-16  Kaz Kojima  <kkojima@gcc.gnu.org>
3201
3202         * config/sh/linux-unwind.h (shmedia_fallback_frame_state): Set
3203         fs->signal_frame.
3204         (sh_fallback_frame_state): Likewise.
3205
3206 2006-03-15  Geoffrey Keating  <geoffk@apple.com>
3207
3208         * config.gcc (*-*-darwin*): Don't build crt2.o for all Darwin ports.
3209         Do switch on default_use_cxa_atexit.
3210         (powerpc*-*-darwin*): Build crt2.o on powerpc.
3211         * config/darwin-crt3.o: New.
3212         * config/darwin.h (LINK_SPEC): If -shared-libgcc, make linker default
3213         to 10.3.  Pass '-multiply_defined suppress' if crt3.o is in use.
3214         (STARTFILE_SPEC): Add crt3.o when -shared-libgcc and appropriate
3215         OS version.
3216         * config/rs6000/t-darwin: Move crt2.o building to here.
3217         * config/rs6000/darwin.h (C_COMMON_OVERRIDE_OPTIONS): Update
3218         Mac OS version for using __cxa_get_exception_ptr.  Don't test versions
3219         of __cxa_atexit.
3220
3221 2006-03-15  Jan-Benedict Glaw  <jbglaw@lug-owl.de>
3222
3223         * config/vax/vax.c (nonindexed_address_p): Change logical negation
3224         from '! xxx' to '!xxx' for coding-style conformance.
3225         * config/vax/vax.h (PCC_BITFIELD_TYPE_MATTERS): Likewise.
3226         (EXTRA_CONSTRAINT): Likewise.
3227         * config/vax/vax.md (four unnamed insns): Likewise.
3228
3229 2006-03-15  Paul Brook  <paul@codesourcery.com>
3230
3231         * config/arm/arm.c (minipool_pad): New.
3232         (add_minipool_forward_ref): Include pool alignment padding in address
3233         calculation.
3234         (push_minipool_fix): Set minipool_pad.
3235         (minipool_pad): Ditto.
3236
3237 2006-03-15  Jan-Benedict Glaw  <jbglaw@lug-owl.de>
3238
3239         * config/vax/vax.c (split_quadword_operands): Use MEM_P()
3240         instead of GET_CODE() == MEM and REG_P() instead of
3241         GET_CODE() == REG.
3242         (print_operand_address): Likewise.
3243         (vax_address_cost): Likewise.
3244         (vax_rtx_costs): Likewise.
3245         (vax_notice_update_cc): Likewise.
3246         (vax_output_int_add): Likewise.
3247         (INDEX_REGISTER_P): Likewise.
3248         (BASE_REGISTER_P): Likewise.
3249         (nonindexed_address_p): Likewise.
3250         (vax_mode_dependent_address_p): Likewise.
3251         * config/vax/vax.h (EXTRA_CONSTRAINT): Likewise.
3252         (PRINT_OPERAND): Likewise.
3253         * config/vax/vax.md (ashlsi3): Likewise.
3254         (ashlsi3): Likewise.
3255         (some more unnamed insns): Likewise.
3256
3257 2006-03-15  Kazu Hirata  <kazu@codesourcery.com>
3258
3259         * tree-ssa-dce.c (EXECUTE_IF_CONTROL_DEPENDENT): Make it an
3260         iterator-style macro.
3261         (mark_control_dependent_edges_necessary): Update the use of
3262         EXECUTE_IF_CONTROL_DEPENDENT.
3263
3264 2006-03-15  J"orn Rennecke <joern.rennecke@st.com>
3265
3266         * config/sh/predicates.md (cache_address_operand): Special.
3267         (ua_address_operand): Likewise.
3268
3269 2006-03-15  Zdenek Dvorak <dvorakz@suse.cz>
3270
3271         * haifa-sched.c (unlink_other_notes, reemit_notes): Do not handle
3272         loop notes.
3273         * sched-deps.c (sched_analyze_insn, sched_analyze): Ditto.
3274
3275 2006-03-15  Andreas Schwab  <schwab@suse.de>
3276
3277         * gensupport.c (identify_predicable_attribute): Don't free p_false
3278         when it is still in use.
3279
3280 2006-03-15  Eric Botcazou  <ebotcazou@libertysurf.fr>
3281
3282         * config.gcc (default with_cpu setting) <sparc*-*-*>: Do not modify
3283         the default setting here.
3284
3285 2006-03-14  Steven Bosscher  <stevenb.gcc@gmail.com>
3286
3287         * tree-pass.h (pass_cfg): Remove.
3288         * alias.c (rest_of_handle_cfg, pass_cfg): Remove.
3289         * passes.c (pass_cfg): Don't run it.
3290
3291 2006-03-14  Kazu Hirata  <kazu@codesourcery.com>
3292
3293         * Makefile.in (reg-stack.o): Don't depend on gt-reg-stack.h.
3294         * reg-stack.c (stack_regs_mentioned_data): Change the type to
3295         VEC(char,heap) *.
3296         (stack_regs_mentioned): Update the uses of
3297         stack_regs_mentioned_data.  Don't access the array beyond its
3298         end.
3299         (reg_to_stack): Update the uses of stack_regs_mentioned_data.
3300         Don't include gt-reg-stack.h.
3301
3302         * config/bfin/bfin.h (UNALIGNED_WORD_ASM_OP): Remove.
3303         * system.h (UNALIGNED_WORD_ASM_OP): Poison.
3304
3305         * combine.c (UWIDE_SHIFT_LEFT_BY_BITS_PER_WORD): Remove.
3306
3307         PR middle-end/26684
3308         * reg-stack.c (stack_regs_mentioned_data): Put it undef #ifdef
3309         STACK_REGS.
3310
3311 2006-03-14  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
3312
3313         * pa/pa32-linux.h (CRT_CALL_STATIC_FUNCTION): Fix typo.
3314
3315 2006-03-14  Richard Guenther  <rguenther@suse.de>
3316
3317         PR tree-optimization/26672
3318         * tree-ssa-propagate.c (set_rhs): Don't walk DEFs if not in
3319         SSA form.
3320
3321 2006-03-14  Richard Guenther  <rguenther@suse.de>
3322
3323         PR tree-optimization/26667
3324         * ipa-inline.c (cgraph_check_inline_limits): Walk the correct
3325         node for the callees.  Always allow inlining if it will shrink
3326         the function size.
3327
3328 2006-03-14  Richard Guenther  <rguenther@suse.de>
3329
3330         PR middle-end/26659
3331         * builtins.c (get_pointer_alignment): Prefer alignment
3332         information from decls over that from types.
3333
3334 2006-03-14  Andrew Pinski  <pinskia@physics.uc.edu>
3335
3336         PR target/26657
3337         * config/darwin.h (LINK_COMMAND_SPEC): Handle -fopenmp.
3338
3339 2006-03-14  Joseph S. Myers  <joseph@codesourcery.com>
3340
3341         * config/rs6000/rs6000.opt (mdlmzb): New option.
3342         (msched-prolog, msched-epilog): Use Var not Mask.
3343         * doc/invoke.texi (-mdlmzb): Document.
3344         * config/rs6000/rs6000.c (TARGET_DEFAULT_TARGET_FLAGS): Remove
3345         MASK_SCHED_PROLOG.
3346         (rs6000_override_options): Enable -mdlmzb for 405 and 440.
3347         * config/rs6000/rs6000.md: Add dlmzb support for 405 and 440.
3348
3349 2006-03-13  Uttam Pawar  <uttamp@us.ibm.com>
3350
3351         PR rtl-optimization/25739
3352         * bt-load.c (augment_live_range): Free tos pointer.
3353
3354         * gensupport.c (identify_predicable_attribute): Free
3355         p_false pointer.
3356         * gcov.c (create_file_names): Free name pointer.
3357
3358 2006-03-13  Roger Sayle  <roger@eyesopen.com>
3359
3360         PR middle-end/26557
3361         * stmt.c (emit_case_nodes): Handle the case where the index is a
3362         CONST_INT, where the comparison mode is specified by the index type.
3363
3364 2006-03-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
3365
3366         * pa/pa32-linux.h (CRT_CALL_STATIC_FUNCTION): Define when CRTSTUFFS_O
3367         is defined.
3368
3369 2006-03-13  Richard Sandiford  <richard@codesourcery.com>
3370
3371         * config/mips/mips.md (*branch_fp): Use %Z2 for the condition.
3372         (*branch_fp_inverted): Likewise.
3373
3374 2006-03-13  Jakub Jelinek  <jakub@redhat.com>
3375
3376         PR middle-end/25989
3377         * omp-low.c (expand_omp_for_generic): Mark istart0
3378         and iend0 as addressable.
3379
3380 2006-03-13  Jie Zhang  <jie.zhang@analog.com>
3381
3382         * config/bfin/uclinux.h: Define _GNU_SOURCE in CPLUSPLUS_CPP_SPEC.
3383
3384 2006-03-13  Jeff Law  <law@redhat.com>
3385
3386         * tree-vrp.c (stmt_interesting_for_vrp): Some statements with
3387         virtual operands are interesting.
3388         (vrp_visit_stmt): Corresponding changes.
3389
3390 2006-03-13  Bernd Schmidt  <bernd.schmidt@analog.com>
3391
3392         * config/bfin/lib1funcs.asm (___umodsi3): Use stack to save contents
3393         of RETS.
3394         * config/bfin/bfin.h (TARGET_CPU_CPP_BUILTINS): If
3395         TARGET_ID_SHARED_LIBRARY, define __ID_SHARED_LIB__.
3396         * config/bfin/crti.S: Use it instead of __PIC__.
3397         * config/bfin/crtn.S: Likewise.
3398
3399         * config/bfin/bfin.md (call_value_symbol, sibcall_value_symbol,
3400         call_symbol, sibcall_symbol): Disallow if TARGET_ID_SHARED_LIBRARY,
3401         not if flag_pic.
3402         Lose 'G' modifier for call operand.
3403         * config/bfin/bfin.c (print_operand) <case SYMBOL_REF>: Don't
3404         recognize 'G' modifier.
3405
3406 2006-03-13  Eric Botcazou  <ebotcazou@adacore.com>
3407
3408         PR middle-end/18859
3409         * gimplify.c (gimplify_switch_expr): Discard empty ranges.
3410         * stmt.c (expand_case): Likewise.
3411
3412 2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>
3413
3414         PR rtl-optimization/26254
3415         * loop-invariant.c (seq_insns_valid_p): New function.
3416         (move_invariant_reg): Only emit new code if it is valid.
3417
3418 2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>
3419
3420         * cfgrtl.c (last_loop_beg_note, back_edge_of_syntactic_loop_p):
3421         Removed.
3422         (force_nonfallthru_and_redirect): Do not use last_loop_beg_note.
3423         (rtl_split_edge): Do not use back_edge_of_syntactic_loop_p.
3424         (commit_one_edge_insertion): Do not look for loop notes.
3425
3426 2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>
3427
3428         * jump.c (follow_jumps): Do not check for loop notes.  Move check for
3429         flag_test_coverage out of loop.
3430
3431 2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>
3432
3433         * final.c (shorten_branches): Remove outdated comment, and turn
3434         the if branch that guards it to continue.
3435
3436 2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>
3437
3438         * cfgloop.c (flow_loop_dump): Do not dump loop->invalid field.
3439         * cfgloop.h (struct loop): Remove unused fields.
3440
3441 2006-03-13  Kazu Hirata  <kazu@codesourcery.com>
3442
3443         * doc/invoke.texi (-fdump-rtl-loop): Remove.
3444         (-dL, -fdump-rtl-loop2): Update the dump file names
3445
3446         * doc/invoke.texi: Update dump file names.
3447
3448 2006-03-12  Steven Bosscher  <stevenb.gcc@gmail.com>
3449
3450         * predict.c (estimate_probability): Remove.
3451         * profile.c (rest_of_handle_branch_prob, pass_branch_prob): Remove.
3452         * basic-block.h (estimate_probability): Remove prototype.
3453         * passes.c (finish_optimization_passes): Dump branch prediction or
3454         profiling heuristics to the .profile tree dump.
3455         (init_optimization_passes): Unqueue pass_branch_prob.
3456
3457         * doc/invoke.texi (-fdump-rtl-bp): Remove.
3458
3459 2006-03-11  Steven Bosscher  <stevenb.gcc@gmail.com>
3460
3461         * rtl.def (LABEL_REF): Remove the field for LABEL_NEXTREF.
3462         * rtl.h (LABEL_NEXTREF): Remove field accessor.
3463
3464 2006-03-11  Eric Botcazou  <ebotcazou@adacore.com>
3465
3466         * function.h (frame_offset_overflow): Declare.
3467         * function.c (frame_offset_overflow): New function.
3468         (assign_stack_local_1): Call it to detect that the offset overflows.
3469         * cfgexpand.c (alloc_stack_frame_space): Likewise.
3470
3471 2006-03-11  Steven Bosscher  <stevenb.gcc@gmail.com>
3472
3473         * config/sh/sh.c: Include alloc-pool.h.
3474         (label_ref_list_pool): New alloc pool.
3475         (label_ref_list_t): New type for lists of labels.
3476         (struct pool_node): Make wend a label_ref_list_t.
3477         (add_constant): Use the new type, eradicate LABEL_NEXTREF
3478         references.
3479         (dump_table): Likewise.
3480         (sh_reorg): Set up the alloc pool before using add_constant and
3481         dump_table, and destroy it when finishing.
3482
3483 2006-03-11  Richard Sandiford  <richard@codesourcery.com>
3484
3485         * config/mips/mips.c: Remove redundant comment.
3486
3487 2006-03-10  Jason Merrill  <jason@redhat.com>
3488
3489         PR c/26004
3490         * gimplify.c (gimplify_modify_expr_rhs): Don't do return slot opt if
3491         the target was declared 'register'.
3492
3493 2006-03-10  Adam Nemet  <anemet@caviumnetworks.com>
3494
3495         * genpreds.c (write_insn_constraint_len): Change definition of
3496         insn_constraint_len to return size_t to match the declaration.
3497
3498 2006-03-10  DJ Delorie  <dj@redhat.com>
3499
3500         * config/m32c/m32c.c (m32c_const_ok_for_constraint_p): Bit numbers
3501         start at zero.
3502         (m32c_expand_insv): Fix test for an AND mask.
3503
3504 2006-03-10  Richard Guenther  <rguenther@suse.de>
3505
3506         PR middle-end/26565
3507         * builtins.c (get_pointer_alignment): Handle component
3508         references for field alignment.
3509
3510 2006-03-10  J"orn Rennecke <joern.rennecke@st.com>
3511
3512         * config.gcc (sh*-superh-elf, sh*elf (newlib)): Use newlib.h
3513         when building with libgloss.
3514         (sh*elf): Implement --without-fp option.
3515         (sh64-superh-linux*): Don't multilib.
3516
3517 2006-03-10  J"orn Rennecke <joern.rennecke@st.com>
3518
3519         * struct-equiv.c (rtx_equiv_p): Fix POST_MODIFY case.
3520
3521 2006-03-09  Andrew Pinski  <pinskia@physics.uc.edu>
3522
3523         * tree-ssa-phiopt.c (tree_ssa_phiopt): Add cfgchanged variable.
3524         Set it when one of the replacement functions returned true.
3525         Return TODO_cleanup_cfg if cfgchanged is true.
3526         (pass_phiopt) <todo_flags_finish>: Remove TODO_cleanup_cfg.
3527
3528 2006-03-09  Adam Nemet  <anemet@caviumnetworks.com>
3529
3530         * combine.c (simplify_shift_const_1): Use gen_lowpart_or_truncate
3531         instead of gen_lowpart.
3532
3533 2006-03-09  Richard Sandiford  <richard@codesourcery.com>
3534
3535         * config/mips/mips-protos.h (mips_output_conditional_branch): Change
3536         interface.
3537         (mips_output_order_conditional_branch): Declare.
3538         * config/mips/mips.h (MIPS_BRANCH): New macro.
3539         * config/mips/mips.c (gen_conditional_branch): Use VOIDmode
3540         for the comparison.  Use gen_condjump.
3541         (mips_output_conditional_branch): Rework interface to take the
3542         asm templates for a direct branch and the inverse of a direct branch.
3543         (mips_output_order_conditional_branch): New function.
3544         (mips_builtin_branch_and_move): New function.
3545         (mips_expand_builtin_compare): Use it.  Use VOIDmode for the
3546         branch condition.  Use gen_single_cc as the condition for
3547         __builtin_mips_upper_* or __builtin_mips_lower_*.
3548         (mips_expand_builtin_bposge): Use mips_builtin_branch_and_move.
3549         Use VOIDmode for the branch condition.
3550         * config/mips/predicates.md (order_operator): New predicate.
3551         * config/mips/mips.md (UNSPEC_SINGLE_CC): New constant.
3552         (branch_fp): Rename to...
3553         (*branch_fp): ...this.  Remove mode from comparison operator.
3554         Use new mips_output_conditional_branch interface.
3555         (branch_fp_inverted): Rename to...
3556         (*branch_fp_inverted): ...this and update as for *branch_fp.
3557         (*branch_zero<mode>): Rename to...
3558         (*branch_order<mode>): ...this.  Remove mode from comparison operator.
3559         Use mips_output_order_conditional_branch.  Only accept ordered
3560         comparisons.
3561         (*branch_zero<mode>_inverted): Rename to...
3562         (*branch_order<mode>_inverted): ...this and update as for
3563         *branch_order<mode>.
3564         (*branch_equality<mode>): Accept zero as the second operand to
3565         the equality operator.  Use the new mips_output_conditional_branch
3566         interface.
3567         (*branch_equality<mode>_inverted): Likewise.
3568         (condjump): New expander.
3569         * config/mips/mips-dsp.md (mips_bposge): Remove mode from comparison
3570         operator.
3571         * config/mips/mips-ps-3d.md (bc1any4t, bc1any4f): Likewise.
3572         (bc1any2t, bc1any2f): Likewise.
3573         (single_cc): New expander.
3574         (*branch_upper_lower, *branch_upper_lower_inverted): New patterns.
3575
3576 2006-03-09  Richard Sandiford  <richard@codesourcery.com>
3577
3578         * doc/md.texi: Update documentation of MIPS constraints.
3579         * config/mips/constraints.md: New file.
3580         * config/mips/mips.md: Include it.
3581         * config/mips/mips.c (mips_char_to_class): Delete.
3582         (override_options): Don't initialize mips_char_to_class.
3583         * config/mips/mips.h (mips_char_to_class): Delete.
3584         (REG_CLASS_FROM_LETTER): Delete.
3585         (CONST_OK_FOR_LETTER_P): Delete.
3586         (CONST_DOUBLE_OK_FOR_LETTER_P): Delete.
3587         (EXTRA_CONSTRAINT_Y): Delete.
3588         (EXTRA_CONSTRAINT_STR): Delete.
3589         (CONSTRAINT_LEN): Delete.
3590         (EXTRA_MEMORY_CONSTRAINT): Delete.
3591
3592 2006-03-09  Diego Novillo  <dnovillo@redhat.com>
3593
3594         * tree-cfg.c (move_block_to_fn): Remove the statements from the
3595         original fn's eh regions.
3596
3597 2006-03-09  Eric Botcazou  <ebotcazou@adacore.com>
3598
3599         * fold-const.c (build_range_check): Make sure to use a valid type to
3600         apply the "(c>=low) && (c<=high) into (c-low>=0) && (c-low<=high-low)"
3601         transformation.
3602
3603         (range_predecessor): New static function.
3604         (range_successor): Likewise.
3605         (merge_ranges): Use them to compute predecessors and successors of
3606         range bounds.
3607
3608 2006-03-09  Roger Sayle  <roger@eyesopen.com>
3609
3610         PR middle-end/26561
3611         * fold-const.c (fold_div_compare): When optimizing X/C1 op C2 as
3612         X op C3, consider whether C3 overflows towards +Inf or -Inf.
3613
3614 2006-03-08  DJ Delorie  <dj@redhat.com>
3615
3616         * config/m32c/addsub.md (addqi3): Disparage a0/a1.
3617         (addpsi3): Expand to include memory operands.  Remove
3618         reload-specific splits.
3619         * config/m32c/bitops.md (bset_qi, bset_hi, bclr_qi): New.
3620         (andqi3_16, andhi3_16, iorqi3_16, iorhi3_16): New.
3621         (andqi3_24, andhi3_24, iorqi3_24, iorhi3_24): New.
3622         (andqi3, andhi3, iorqi3, iorhi3): Convert to expanders.
3623         (shift1_qi, shift1_hi, insv): New.
3624         * config/m32c/cond.md (cbranchqi4, cbranchhi4): Remove.
3625         (cbranch<mode>4, stzx_16, stzx_24_<mode>, stzx_reversed,
3626         cmp<mode>, b<code>, s<code>, s<code>_24, movqicc, movhicc,
3627         cond_to_int): New.
3628         * config/m32c/m32c-protos.h: Update as needed.
3629         * config/m32c/m32c.c (m32c_reg_class_from_constraint): Don't
3630         default the Rcr, Rcl, Raw, and Ral constraints.  Add Ra0 and Ra1.
3631         Fail for unrecognized R* constraints.
3632         (m32c_cannot_change_mode_class): Be more picky about pseudos.
3633         (m32c_const_ok_for_constraint_p): Add Imb, Imw, and I00.
3634         (m32c_extra_constraint_p2): Allow (mem (plus (plus fb int) int)).
3635         Add Sp constraint.
3636         (m32c_init_libfuncs): New.
3637         (m32c_legitimate_address_p): Add debug wrapper.
3638         (m32c_rtx_costs): New.
3639         (m32c_address_cost): New.
3640         (conversions): Add 'B' prefix.
3641         (m32c_print_operand): 'h' and 'H' pick lower and upper halves of
3642         operands, or word regnames for QI operands.  'B' prints bit
3643         position.
3644         (m32c_expand_setmemhi): New.
3645         (m32c_expand_movmemhi): New.
3646         (m32c_expand_movstr): New.
3647         (m32c_expand_cmpstr): New.
3648         (m32c_prepare_shift): Shift counts are limited to 16 bits at a time.
3649         (m32c_expand_neg_mulpsi3): Handle non-ints.
3650         (m32c_cmp_flg_0): New.
3651         (m32c_expand_movcc): New.
3652         (m32c_expand_insv): New.
3653         (m32c_scc_pattern): New.
3654         * config/m32c/m32c.h (reg classes): Add AO_REGS and A1_REGS.  Take
3655         a0/a1 out of SIregs.
3656         (STORE_FLAG_VALUE): New.
3657         * config/m32c/m32c.md: Add unspecs for string moves.  Define various mode and
3658         code macros.
3659         (no_insn): New.
3660         * config/m32c/mov.md: Make constraints more liberal.
3661         (zero_extendqihi2): Optimize r0/r1 case.
3662         * config/m32c/muldiv.md (mulpsi3): Check for intvals.
3663         * config/m32c/predicates.md (m32c_any_operand): New.
3664         (m32c_nonimmediate_operand): New.
3665         (m32c_hl_operand): New.
3666         (m32c_r3_operand): New.
3667         (ap_operand): New.
3668         (ma_operand): New.
3669         (memsym_operand): New.
3670         (memimmed_operand): New.
3671         (a_qi_operand): New.
3672         (m32c_eqne_operator): New.
3673         (m32c_1bit8_operand): New.
3674         (m32c_1bit16_operand): New.
3675         (m32c_1mask8_operand): New.
3676         (m32c_1mask16_operand): New.
3677         * config/m32c/blkmov.md: New file.
3678         * config/m32c/t-m32c (MD_FILES): Add blkmov.
3679
3680 2006-03-08  Andreas Tobler  <a.tobler@schweiz.ch>
3681
3682         * dwarf2out.c (expand_builtin_dwarf_sp_column): Make dwarf_regnum
3683         unsigned to fix signed/unsigned comparison issue in
3684         DWARF2_FRAME_REG_OUT.
3685         (expand_builtin_init_dwarf_reg_sizes): Make i unsigned to fix signed/
3686         unsigned comparison issue in DWARF2_FRAME_REG_OUT.
3687
3688         * tree-ssa-operands.c (finalize_ssa_def_ops): Move the declaration
3689         of ptr into the ENABLE_CHECKING section.
3690
3691 2006-03-08  Jeff Law  <law@redhat.com>
3692
3693         * tree-vrp.c (infer_value_range): Only count pointer uses
3694         and dereferences if -fdelete-null-pointer-checks is enabled.
3695
3696         * tree-vrp.c (find_assert_locations): Infer value ranges for
3697         single use pointers, but do not create ASSERT_EXPRs for them.
3698         When a non-null range is inferred for a pointer, backwards
3699         propagate that range to other equivalent pointers through the
3700         use-def chain.
3701
3702 2006-03-08  Paolo Bonzini  <bonzini@gnu.org>
3703
3704         PR bootstrap/26500
3705         * Makefile.in (dvi, html, install-info): Invoke the corresponding
3706         language hook targets.
3707         * ada/Make-lang.in, cp/Make-lang.in, objc/Make-lang.in,
3708         objcp/Make-lang.in: Create stub rules for dvi, html, install-info
3709         if language hook targets were missing.
3710
3711 2006-03-07  Zdenek Dvorak <dvorakz@suse.cz>
3712
3713         * tree-ssa-opfinalize.h: Removed.
3714         * Makefile.in (tree-ssa-operands.o): Remove tree-ssa-opfinalize.h
3715         dependency.
3716         * tree-ssa-operands.c: Do not include tree-ssa-opfinalize.h.
3717         (ALLOC_OPTYPE, APPEND_OP_AFTER, MOVE_HEAD_AFTER, MOVE_HEAD_TO_FREELIST,
3718         INITIALIZE_USE, add_def_op, add_use_op, add_vuse_op, add_maydef_op,
3719         add_mustdef_op, finalize_ssa_def_ops, finalize_ssa_use_ops,
3720         finalize_ssa_v_may_def_ops, finalize_ssa_vuse_ops,
3721         finalize_ssa_v_must_def_ops): New.
3722
3723 2006-03-07  Kenneth Zadeck <zadeck@naturalbridge.com>
3724
3725         * df-scan.c: (df_bb_refs_record): Fix obvious typo with wrong
3726         block as parameter.
3727
3728 2006-03-07  Geoffrey Keating  <geoffk@apple.com>
3729
3730         * varasm.c (assemble_end_function): Say that 'fnname' is unused.
3731
3732         * config/i386/i386.c (ix86_delegitimize_address): Handle Darwin
3733         addresses with offsets; reorganize.
3734
3735         * dwarf2out.c (DWARF2_FRAME_REG_OUT): Move up in file.
3736         (expand_builtin_dwarf_sp_column): Call DWARF2_FRAME_REG_OUT.
3737         (expand_builtin_init_dwarf_reg_sizes): Likewise.
3738
3739 2006-03-08  David Billinghurst <David.Billinghurst@riotinto.com>
3740
3741         PR target/26588
3742         * config/i386/cygwin.h (GOMP_SELF_SPECS): Define.
3743
3744 2006-03-08  Ben Elliston  <bje@au.ibm.com>
3745
3746         * config/fp-bit.h (CMPtype): Typedef to a word mode integer.
3747
3748 2006-03-07  Aldy Hernandez  <aldyh@redhat.com>
3749
3750         PR gomp/26238
3751         * doc/passes.texi (Tree-SSA passes): Document omp lowering and
3752         expansion.
3753
3754 2006-03-07  Richard Guenther  <rguenther@suse.de>
3755
3756         PR tree-optimization/26587
3757         * tree-ssa-structalias.c (handle_ptr_arith): Handle MINUS_EXPR.
3758
3759 2006-03-07  Richard Sandiford  <richard@codesourcery.com>
3760
3761         * varasm.c (assemble_variable): Fix setting of DECL_IN_TEXT_SECTION.
3762
3763 2006-03-07  Richard Sandiford  <richard@codesourcery.com>
3764
3765         * hooks.c (hook_bool_mode_rtx_true): New function.
3766         * hooks.h (hook_bool_mode_rtx_true): Declare.
3767         * toplev.c (compile_file): Call output_shared_constant_pool.
3768         * varasm.c (shared_constant_pool): New variable.
3769         (assemble_start_function, assemble_end_function): Remove arguments
3770         from call to output_constant_pool.
3771         (create_constant_pool): New function, split out from...
3772         (init_varasm_status): ...here.
3773         (force_const_mem): Choose between the shared and per-function constant
3774         pools.  Set current_function_uses_const_pool when reusing old entries
3775         as well as when creating new ones.
3776         (mark_constant): Ignore data argument.
3777         (mark_constants): Remove pool argument.
3778         (mark_constant_pool): Likewise.  Use current_function_uses_const_pool
3779         to decide whether the function uses a constant pool.
3780         (output_constant_pool_contents): New function, split out from...
3781         (output_constant_pool): ...here.
3782         (output_shared_constant_pool): New function.
3783         (init_varasm_once): Initialize shared_constant_pool.
3784         * output.h (output_constant_pool): Delete.
3785         (output_shared_constant_pool): Declare.
3786         * config/s390/s390-protos.h (s390_output_constant_pool): Delete.
3787         * config/i386/i386.c (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Override.
3788
3789 2006-03-06  Nick Clifton  <nickc@redhat.com>
3790
3791         * config/m32r/m32r.h (OPTIMIZATION_OPTIONS): Remove reference to
3792         flag_strength_reduce.
3793
3794 2006-03-06  Ben Elliston  <bje@au.ibm.com>
3795
3796         * config.gcc: Add t-dfprules to $tmake_file for i*86-*-linux* and
3797         x86_64-*-linux* configurations.
3798
3799         * config/dfp-bit.h (CMPtype): Typedef to a word mode integer.
3800         (LIBGCC2_WORDS_BIG_ENDIAN): Define.
3801
3802 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
3803
3804         * tree-ssa-threadupdate.c (rediscover_loops_after_threading):
3805         Remove.
3806         * basic-block.h: Remove the extern for
3807         rediscover_loops_after_threading.
3808
3809         * cfgloop.c (cancel_loop): Make it static.
3810         * cfgloop.h: Remove the prototype for cancel_loop.
3811
3812         * flow.c (recompute_reg_usage): Make it static.
3813         * rtl.h: Remove the prototype for recompute_reg_usage.
3814
3815         * function.c (use_return_register): Make it static.
3816         * function.h: Remove the prototype.
3817
3818 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
3819
3820         * recog.c (volatile_mem_p, validate_change_maybe_volatile):
3821         Remove.
3822         * recog.h: Remove the prototype for
3823         validate_change_maybe_volatile.
3824
3825 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
3826
3827         * rtlanal.c (replace_reg): Remove.
3828         * rtl.h: Remove the prototype for replace_reg.
3829
3830 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
3831
3832         * regclass.c (reg_scan_update): Remove.
3833         (reg_scan_mark_refs): Remove the last argument.
3834         * rtl.h: Remove the prototype for reg_scan_update.
3835
3836 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
3837
3838         * builtins.c, c-pragma.h, c-typeck.c, cgraph.c, cgraphunit.c,
3839         combine.c, common.opt, config/dfp-bit.c, config/i386/i386.c,
3840         config/m68k/m68k.c, config/m68k/m68k.md, config/mt/mt.c,
3841         config/mt/mt.h, config/s390/s390.md, df-core.c, df-problems.c,
3842         df-scan.c, df.h, diagnostic.c, expr.c, function.h, gimplify.c,
3843         loop-invariant.c, omp-low.c, opts.c, passes.c,
3844         rtl-factoring.c, rtlanal.c, struct-equiv.c, tree-cfgcleanup.c,
3845         tree-ssa-loop-niter.c, tree-ssa-loop-prefetch.c,
3846         tree-ssa-structalias.c, tree-ssa-threadedge.c,
3847         tree-ssa-threadupdate.c, tree-vect-patterns.c,
3848         tree-vect-transform.c, tree-vectorizer.h, tree-vrp.c,
3849         unwind-dw2.c: Fix comment typos.  Follow spelling conventions.
3850
3851 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
3852
3853         * dwarf2out.c (dwarf2out_add_library_unit_info): Remove.
3854         * dwarf2out.h: Remove the prototype for
3855         dwarf2out_add_library_unit_info.
3856
3857 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
3858
3859         * tree.c (add_var_to_bind_expr): Remove.
3860         * tree.h: Remove the prototype for add_var_to_bind_expr.
3861
3862 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
3863
3864         * regclass.c (n_non_fixed_regs): Remove.
3865         (init_reg_sets_1, globalize_reg): Remove all uses of
3866         n_non_fixed_regs.
3867         * hard-reg-set.h: Remove the extern for n_non_fixed_regs.
3868
3869 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
3870
3871         * rtlanal.c (insns_safe_to_move_p): Remove.
3872         * rtl.h: Remove the prototype for insns_safe_to_move_p.
3873
3874 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
3875
3876         * expmed.c (expand_mult_add): Remove.
3877         * expr.h: Remove the prototype for expand_mult_add.
3878
3879 2006-03-04  Jakub Jelinek  <jakub@redhat.com>
3880
3881         * unwind-dw2.h (_Unwind_FrameState): Add REG_SAVED_VAL_OFFSET
3882         and REG_SAVED_VAL_EXP constants.
3883         * unwind-dw2.c (struct _Unwind_Context): Add by_value array.
3884         (_Unwind_GetGR, _Unwind_SetGR, _Unwind_GetGRPtr, _Unwind_SetGRPtr):
3885         Handle regs stored by value.
3886         (_Unwind_SetGRValue, _Unwind_GRByValue): New functions.
3887         (execute_cfa_program): Handle DW_CFA_val_offset,
3888         DW_CFA_val_offset_sf and DW_CFA_val_expression.
3889         (uw_update_context_1): Handle REG_SAVED_REG with regs stored by
3890         value specially.  Handle REG_SAVED_VAL_OFFSET and REG_SAVED_VAL_EXP.
3891         (uw_install_context_1): Handle target regs stored by value.
3892
3893 2006-03-03  Daniel Berlin  <dberlin@dberlin.org>
3894
3895         * tree-sra.c (tree_sra): Return todoflags;
3896         (generate_one_element): Set TODO_update_smt_usage if needed.
3897         (pass_sra): Remove TODO_update_smt_usage.
3898         * tree-ssa-forwprop.c (forward_propagate_addr_expr): Add some
3899         parameter.
3900         (tree_ssa_forward_propagate_single_use_vars): Return
3901         TODO_update_smt_usage if we need to update SMT usage.
3902         (pass_forwprop): Remove TODO_update_smt_usage.
3903
3904 2006-03-03  Diego Novillo  <dnovillo@redhat.com>
3905
3906         * tree-ssa-operands.c: Tidy whitespace.  Fix spelling.
3907         (correct_use_link): Remove reference to get_stmt_operands.
3908         (update_stmt_operands): Likewise.
3909         (get_modify_expr_operands): New function factored out of
3910         parse_ssa_operands and get_expr_operands.
3911         Try to create V_MUST_DEFs for LHS by default.
3912         (get_expr_operands) <case MODIFY_EXPR>: Call
3913         get_modify_expr_operands.
3914         <case ARRAY_RANGE_REF>: Handle together with ARRAY_REF.
3915         <case BIT_FIELD_REF>: Clear opf_kill_def from FLAGS.
3916         (parse_ssa_operands) <case MODIFY_EXPR>: Call
3917         get_modify_expr_operands.
3918
3919 2006-03-03  Kazu Hirata  <kazu@codesourcery.com>
3920
3921         * tree-dfa.c (referenced_var_lookup_if_exists): Remove.
3922         * tree-flow.h: Remove the prototype for
3923         referenced_var_lookup_if_exists.
3924
3925 2006-03-03  Steve Ellcey  <sje@cup.hp.com>
3926
3927         PR rtl-optimization/26345
3928         PR target/19061
3929         * config/ia64/predicates.md (basereg_operand): Don't look in subregs.
3930
3931 2006-03-03  Roger Sayle  <roger@eyesopen.com>
3932
3933         PR tree-optimization/26524
3934         * tree-scalar-evolution.c (interpret_rhs_modify_expr): Use
3935         fold_convert to create a constant of the appropriate type.
3936
3937 2006-03-03  Richard Sandiford  <richard@codesourcery.com>
3938
3939         * doc/tm.texi: Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
3940         SYMBOL_REF_IN_BLOCK_P.
3941         * doc/rtl.texi: Likewise.  Refer to SYMBOL_FLAG_HAS_BLOCK_INFO instead
3942         of SYMBOL_FLAG_IN_BLOCK.
3943         * gengtype.c (adjust_field_rtx_def): Use SYMBOL_REF_HAS_BLOCK_INFO_P
3944         instead of SYMBOL_REF_IN_BLOCK_P.
3945         * explow.c (use_anchored_address): Likewise.
3946         * rtl.c (rtx_size): Likewise.
3947         * varasm.c (create_block_symbol): Set SYMBOL_FLAG_HAS_BLOCK_INFO
3948         instead of SYMBOL_FLAG_IN_BLOCK.
3949         (make_decl_rtl): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
3950         SYMBOL_REF_IN_BLOCK_P.
3951         (assemble_variable): Likewise.
3952         (output_constant_def_contents): Likewise.
3953         (output_constant_pool): Likewise.
3954         (default_encode_section_info): Preserve SYMBOL_FLAG_HAS_BLOCK_INFO
3955         instead of SYMBOL_FLAG_IN_BLOCK.
3956         * rtl.h (block_symbol): Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
3957         SYMBOL_REF_IN_BLOCK_P.
3958         (SYMBOL_REF_BLOCK): Likewise.
3959         (SYMBOL_REF_OFFSET): Likewise.
3960         (BLOCK_SYMBOL_CHECK): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
3961         SYMBOL_REF_IN_BLOCK_P.
3962         (SYMBOL_FLAG_IN_BLOCK): Replace with...
3963         (SYMBOL_FLAG_HAS_BLOCK_INFO): ...this.
3964         (SYMBOL_REF_IN_BLOCK_P): Replace with...
3965         (SYMBOL_REF_HAS_BLOCK_INFO_P): ...this.
3966
3967 2006-03-03  Jakub Jelinek  <jakub@redhat.com>
3968
3969         * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Fix pasto.
3970
3971 2006-03-02  Roger Sayle  <roger@eyesopen.com>
3972
3973         * simplify-rtx.c (simplify_unary_operation): When simplifying
3974         (neg (lt X 0)) into (ashiftrt X C) or (lshiftrt X C), make sure
3975         that we perform the right shift in the appropriate mode, and
3976         then extend or truncate the result to requested mode.
3977
3978 2006-03-03  Zdenek Dvorak <dvorakz@suse.cz>
3979
3980         * gengtype.c (main): Handle double_int type.
3981         * tree.h (struct tree_int_cst): Make type of int_cst double_int.
3982         * double-int.c: New file.
3983         * double-int.h: New file.
3984         * system.h: Include doubleint.h.
3985         * Makefile.in (SYSTEM_H): Include double-int.h.
3986         (double-int.o): Add.
3987
3988 2006-03-03  Joseph S. Myers  <joseph@codesourcery.com>
3989
3990         PR bootstrap/26478
3991         * Makefile.in (stmp-int-hdrs): Remove include/unwind.h before
3992         copying over it.
3993
3994 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
3995
3996         * tree-vrp.c (remove_range_assertions): Do not update statements
3997         unnecessarily.
3998
3999 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
4000
4001         * cse.c (rest_of_handle_cse): Do not pass CLEANUP_PRE_LOOP to cfg
4002         cleanup.
4003         * gcse.c (rest_of_handle_gcse): Ditto.
4004         * except.c (gate_handle_eh): Ditto.
4005         * cfgcleanup.c (rest_of_handle_jump2): Ditto.
4006         * basic-block.h (CLEANUP_PRE_LOOP): Remove.
4007
4008 2006-03-02  Eric Christopher  <echristo@apple.com>
4009
4010         * config/i386/i386.c (machopic_output_stub): Add indirection to
4011         jump.
4012
4013 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
4014
4015         * loop.c: Removed.
4016
4017 2006-03-02  David S. Miller  <davem@sunset.davemloft.net>
4018
4019         Sun Niagara specific optimizations.
4020         * config.gcc: Recognize niagara as target.
4021         * config/sparc/sparc.h (SPARC_RELAXED_ORDERING): Mention Niagara.
4022         (TARGET_CPU_niagara): Define.
4023         (CPP_CPU64_DEFAULT_SPEC): Define __sparc_v9__ for Niagara.
4024         (ASM_CPU64_DEFAULT_SPEC): Pass -Av9b for Niagara.
4025         (CPP_CPU_SPEC): Handle -mcpu=niagara.
4026         (ASM_CPU_SPEC): Likewise.
4027         (PROCESSOR_NIAGARA): New enum entry.
4028         (REGISTER_MOVE_COST): Handle Niagara.
4029         (BRANCH_COST, PREFETCH_BLOCK, SIMULTANEOUS_PREFETCHES): Likewise.
4030         * config/sparc/sparc.c (niagara_costs): New processor_costs entry.
4031         (sparc_override_options): Recognize "niagara", set appropriate
4032         default MASK_* values for it, and align functions to 32-bytes
4033         by default just like ULTRASPARC/ULTRASPARC3.
4034         (sparc_initialize_trampoline): Handle niagara like ultrasparc.
4035         (sparc64_initialize_trampoline): Likewise.
4036         (sparc_use_sched_lookahead): Use zero for niagara.
4037         (sparc_issue_rate): Use one for niagara.
4038         * config/sparc/niagara.md: New file.
4039         * config/sparc/sparc.md: Include it.
4040         * config/sparc/sol2-bi.h (CPP_CPU64_DEFAULT_SPEC,
4041         ASM_CPU32_DEFAULT_SPEC, ASM_CPU64_DEFAULT_SPEC): Set appropriately
4042         when default cpu is niagara.
4043         (CPP_CPU_SPEC): Handle -mcpu=niagara.
4044         (ASM_CPU_SPEC): Likewise.
4045         * config/sparc/sol2.h (ASM_CPU_DEFAULT_SPEC): Set appropriately
4046         when default cpu is niagara.
4047         (ASM_CPU_SPEC): Handle -mcpu=niagara.
4048         * config/sparc/linux64.h: Handle a default of TARGET_CPU_niagara
4049         just like v9/ultrasparc/ultrasparc3.
4050         * doc/invoke.texi: Add documentation for "niagara" and improve
4051         existing documentation for ultrasparc variants.
4052
4053 2006-03-02  Diego Novillo  <dnovillo@redhat.com>
4054
4055         * tree-ssa-operands.c (update_stmt_operands): Update documentation.
4056
4057 2006-03-02  Richard Sandiford  <richard@codesourcery.com>
4058
4059         * doc/tm.texi (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Document.
4060         (ASM_OUTPUT_BSS): Describe the two ways of handling global BSS,
4061         and say that only one is needed.
4062         * doc/rtl.texi (SYMBOL_REF_BLOCK): Say that the block can be null.
4063         * target.h (have_switchable_bss_sections): New hook.
4064         * explow.c (use_anchored_address): Check that the symbol is in a block.
4065         * varasm.c (tls_comm_section, comm_section, lcomm_section)
4066         (bss_noswitch_section): New variables.
4067         (get_unnamed_section): Add SECTION_UNNAMED to the flags.
4068         (get_noswitch_section): New function.
4069         (get_block_for_section): Allow SECT to be null.
4070         (unlikely_text_section_p): Use SECTION_STYLE.
4071         (bss_initializer_p): New function.
4072         (get_variable_section): Move earlier in file.  Take a new argument,
4073         prefer_noswitch_p.  Move bss checks from assemble_variable to here.
4074         Return one of the new *_sections in such cases.
4075         (get_block_for_decl): New function, extracting some logic from
4076         use_blocks_for_decl_p.
4077         (change_symbol_section): Remove in favor of...
4078         (change_symbol_block): ...this new function.
4079         (use_blocks_for_decl_p): Remove checks now performed by
4080         get_block_for_decl.
4081         (make_decl_rtl): Use change_symbol_block and get_block_for_decl.
4082         (ASM_EMIT_LOCAL, ASM_EMIT_BSS, ASM_EMIT_COMMON): Delete in favor of...
4083         (emit_local, emit_bss, emit_common): ...these new functions.
4084         Return true if the alignment was honored.
4085         (emit_tls_common): New function.
4086         (asm_emit_uninitialised): Delete.
4087         (assemble_variable_noswitch): New function, split out from...
4088         (assemble_variable): ...here.  Don't make decisions about common
4089         variables here.  Globalize all public decls that go into non-common
4090         sections.  Check whether SYMBOL_REF_BLOCK is null.
4091         (output_constant_def_contents): Check whether SYMBOL_REF_BLOCK is null.
4092         (output_constant_pool): Likewise.
4093         (init_varasm_once): Initialize the new section variables.
4094         (have_global_bss_p): New function.
4095         (categorize_decl_for_section): Use bss_initializer_p.
4096         (switch_to_section): Use SECTION_STYLE.  Abort for SECTION_NOSWITCH.
4097         (place_block_symbol): Assert that the symbol must be in a block.
4098         * target-def.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): New macro.
4099         (TARGET_INITIALIZER): Include it.
4100         * rtl.h (SYMBOL_REF_BLOCK): Document the null alternative.
4101         * output.h (SECTION_STYLE_MASK, SECTION_COMMON): New macros.
4102         (SECTION_MACH_DEP): Bump by two.
4103         (SECTION_UNNAMED, SECTION_NOSWITCH): New macros.
4104         (unnamed_section): Mention SECTION_UNNAMED in comment.
4105         (named_section): Likewise SECTION_NAMED.
4106         (noswitch_section_callback): New type.
4107         (noswitch_section): New structure.
4108         (section): Add a noswitch_section alternative.
4109         (SECTION_STYLE): New macro.
4110         (tls_comm_section, comm_section, lcomm_section): Declare.
4111         (bss_noswitch_section, have_global_bss_p): Declare.
4112         * config/elfos.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
4113         * config/iq2000/iq2000.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
4114         Override.
4115         * config/v850/v850.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
4116         * config/stormy16/stormy16.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
4117         Override.
4118
4119 2006-03-02  Daniel Berlin <dberlin@dberlin.org>
4120
4121         * gcc/tree-vrp.c (execute_vrp): Return value.
4122         * gcc/regrename.c (rest_of_handle_regrename): Ditto.
4123         * gcc/tree-into-ssa.c (rewrite_into_ssa): Ditto.
4124         * gcc/tree-complex.c (tree_lower_complex): Ditto.
4125         (tree_lower_complex_O0): Ditto.
4126         * gcc/tracer.c (rest_of_handle_tracer): Ditto.
4127         * gcc/postreload-gcse.c (rest_of_handle_gcse2): Ditto.
4128         * gcc/postreload.c (rest_of_handle_postreload): Ditto.
4129         * gcc/tree-tailcall.c (execute_tail_recursion): Ditto.
4130         (execute_tail_calls): Ditto.
4131         * gcc/tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
4132         * gcc/tree.h (init_function_for_compilation): Ditto.
4133         * gcc/ipa-cp.c (ipcp_driver): Ditto.
4134         * gcc/tree-scalar-evolution.c (scev_const_prop): Ditto.
4135         * gcc/tree-scalar-evolution.h (scev_const_prop): Ditto.
4136         * gcc/final.c (compute_alignments): Ditto.
4137         (rest_of_handle_final): Ditto.
4138         (rest_of_handle_shorten_branches): Ditto.
4139         (rest_of_clean_state): Ditto.
4140         * gcc/omp-low.c (execute_expand_omp): Ditto.
4141         (execute_lower_omp): Ditto.
4142         * gcc/tree-ssa-dse.c (tree_ssa_dse): Ditto.
4143         * gcc/ipa-reference.c (static_execute): Ditto.
4144         * gcc/tree-ssa-uncprop.c (tree_ssa_uncprop): Ditto.
4145         * gcc/reorg.c (rest_of_handle_delay_slots): Ditto.
4146         (rest_of_handle_machine_reorg): Ditto.
4147         * gcc/cgraphunit.c (rebuild_cgraph_edges): Ditto.
4148         * gcc/flow.c (recompute_reg_usage): Ditto.
4149         (rest_of_handle_remove_death_notes): Ditto.
4150         (rest_of_handle_life): Ditto.
4151         (rest_of_handle_flow2): Ditto.
4152         * gcc/tree-ssa-copyrename.c (rename_ssa_copies): Ditto.
4153         * gcc/tree-ssa-ccp.c (do_ssa_ccp): Ditto.
4154         (do_ssa_store_ccp): Ditto.
4155         (execute_fold_all_builtins): Ditto.
4156         * gcc/mode-switching.c (rest_of_handle_mode_switching): Ditto.
4157         * gcc/modulo-sched.c (rest_of_handle_sms): Ditto.
4158         * gcc/ipa-pure-const.c (static_execute): Ditto.
4159         * gcc/cse.c (rest_of_handle_cse): Ditto.
4160         (rest_of_handle_cse2): Ditto.
4161         * gcc/web.c (rest_of_handle_web): Ditto.
4162         * gcc/tree-stdarg.c (execute_optimize_stdarg): Ditto.
4163         * gcc/tree-ssa-math-opts.c (execute_cse_reciprocals): Ditto.
4164         * gcc/tree-ssa-dom.c (tree_ssa_dominator_optimize): Ditto.
4165         * gcc/tree-nrv.c (tree_nrv): Ditto.
4166         (execute_return_slot_opt): Ditto.
4167         * gcc/tree-ssa-alias.c (compute_may_aliases): Ditto.
4168         (create_structure_vars): Ditto.
4169         * gcc/loop-init.c (rtl_loop_init): Ditto.
4170         (rtl_loop_done): Ditto.
4171         (rtl_move_loop_invariants): Ditto.
4172         (rtl_unswitch): Ditto.
4173         (rtl_unroll_and_peel_loops): Ditto.
4174         (rtl_doloop): Ditto.
4175         * gcc/gimple-low.c (lower_function_body): Ditto.
4176         (mark_used_blocks): Ditto.
4177         * gcc/tree-ssa-sink.c (execute_sink_code): Ditto.
4178         * gcc/ipa-inline.c (cgraph_decide_inlining): Ditto.
4179         (cgraph_early_inlining): Ditto.
4180         * gcc/global.c (rest_of_handle_global_alloc): Ditto.
4181         * gcc/jump.c (cleanup_barriers): Ditto.
4182         (purge_line_number_notes): Ditto.
4183         * gcc/ifcvt.c (rest_of_handle_if_conversion): Ditto.
4184         (rest_of_handle_if_after_reload): Ditto.
4185         * gcc/tree-ssa-loop.c (tree_ssa_loop_init): Ditto.
4186         (tree_ssa_loop_im): Ditto.
4187         (tree_ssa_loop_unswitch): Ditto.
4188         (tree_vectorize): Ditto.
4189         (tree_linear_transform): Ditto.
4190         (tree_ssa_loop_ivcanon): Ditto.
4191         (tree_ssa_empty_loop): Ditto.
4192         (tree_ssa_loop_bounds): Ditto.
4193         (tree_complete_unroll): Ditto.
4194         (tree_ssa_loop_prefetch): Ditto.
4195         (tree_ssa_loop_ivopts): Ditto.
4196         (tree_ssa_loop_done): Ditto.
4197         * gcc/predict.c (tree_estimate_probability): Ditto.
4198         * gcc/recog.c (split_all_insns_noflow): Ditto.
4199         (rest_of_handle_peephole2): Ditto.
4200         (rest_of_handle_split_all_insns): Ditto.
4201         * gcc/tree-eh.c (lower_eh_constructs): Ditto.
4202         * gcc/regmove.c (rest_of_handle_regmove): Ditto.
4203         (rest_of_handle_stack_adjustments): Ditto.
4204         * gcc/local-alloc.c (rest_of_handle_local_alloc): Ditto.
4205         * gcc/function.c (instantiate_virtual_regs): Ditto.
4206         (init_function_for_compilation): Ditto.
4207         (rest_of_handle_check_leaf_regs): Ditto.
4208         * gcc/gcse.c (rest_of_handle_jump_bypass): Ditto.
4209         (rest_of_handle_gcse): Ditto.
4210         * gcc/ipa-type-escape.c (type_escape_execute): Ditto.
4211         * gcc/alias.c (rest_of_handle_cfg): Ditto.
4212         * gcc/tree-if-conv.c (main_tree_if_conversion): Ditto.
4213         * gcc/profile.c (rest_of_handle_branch_prob): Ditto.
4214         * gcc/tree-ssa-phiopt.c (tree_ssa_phiopt): Ditto.
4215         * gcc/rtl-factoring.c (rest_of_rtl_seqabstr): Ditto.
4216         * gcc/bt-load.c (rest_of_handle_branch_target_load_optimize): Ditto
4217         * gcc/tree-dfa.c (find_referenced_vars): Ditto.
4218         * gcc/except.c (set_nothrow_function_flags): Ditto.
4219         (convert_to_eh_region_ranges): Ditto.
4220         (rest_of_handle_eh): Ditto.
4221         * gcc/emit-rtl.c (unshare_all_rtl): Ditto.
4222         (remove_unnecessary_notes): Ditto.
4223         * gcc/except.h (set_nothrow_function_flags): Ditto.
4224         (convert_to_eh_region_ranges): Ditto.
4225         * gcc/cfgexpand.c (tree_expand_cfg): Ditto.
4226         * gcc/tree-cfgcleanup.c (merge_phi_nodes): Ditto.
4227         * gcc/tree-ssa-pre.c (do_pre): Ditto.
4228         (execute_fre): Ditto.
4229         * gcc/cfgcleanup.c (rest_of_handle_jump): Ditto.
4230         (rest_of_handle_jump2): Ditto.
4231         * gcc/tree-sra.c (tree_sra): Ditto.
4232         * gcc/tree-mudflap.c (execute_mudflap_function_ops): Ditto.
4233         (execute_mudflap_function_decls): Ditto.
4234         * gcc/tree-ssa-copy.c (do_copy_prop): Ditto.
4235         (do_store_copy_prop): Ditto.
4236         * gcc/ipa-prop.h (ipcp_driver): Ditto.
4237         * gcc/cfglayout.c (insn_locators_initialize): Ditto.
4238         * gcc/tree-ssa-forwprop.c
4239         (tree_ssa_forward_propagate_single_use_vars): Ditto.
4240         * gcc/cfglayout.h (insn_locators_initialize): Ditto.
4241         * gcc/tree-ssa-dce.c (tree_ssa_dce): Ditto.
4242         * gcc/tree-ssa.c (execute_early_warn_uninitialized): Ditto.
4243         (execute_late_warn_uninitialized): Ditto.
4244         * gcc/rtl.h (cleanup_barriers): Ditto.
4245         (split_all_insns_noflow): Ditto.
4246         (purge_line_number_notes): Ditto.
4247         (unshare_all_rtl): Ditto.
4248         (remove_unnecessary_notes): Ditto.
4249         (recompute_reg_usage): Ditto.
4250         (variable_tracking_main): Ditto.
4251         * gcc/integrate.c (emit_initial_value_sets): Ditto.
4252         * gcc/integrate.h (emit_initial_value_sets): Ditto.
4253         * gcc/tree-optimize.c (execute_free_datastructures): Ditto
4254         (execute_free_cfg_annotations): Ditto.
4255         (execute_fixup_cfg): Ditto.
4256         (execute_cleanup_cfg_pre_ipa): Ditto.
4257         (execute_cleanup_cfg_post_optimizing): Ditto.
4258         (execute_init_datastructures): Ditto.
4259         * gcc/tree-object-size.c (compute_object_sizes): Ditto.
4260         * gcc/combine.c (rest_of_handle_combine): Ditto.
4261         * gcc/tree-outof-ssa.c (rewrite_out_of_ssa): Ditto.
4262         * gcc/bb-reorder.c (duplicate_computed_gotos): Ditto.
4263         (rest_of_handle_reorder_blocks): Ditto.
4264         (rest_of_handle_partition_blocks): Ditto.
4265         * gcc/var-tracking.c (variable_tracking_main): Ditto.
4266         * gcc/tree-profile.c (tree_profiling): Ditto.
4267         * gcc/tree-vect-generic.c (expand_vector_operations): Ditto.
4268         * gcc/reg-stack.c (rest_of_handle_stack_regs): Ditto.
4269         * gcc/sched-rgn.c (rest_of_handle_sched): Ditto.
4270         (rest_of_handle_sched2): Ditto.
4271         * gcc/basic-block.h (free_bb_insn): Ditto.
4272         * gcc/tree-ssa-structalias.c (ipa_pta_execute): Ditto.
4273         * gcc/tree-cfg.c (execute_build_cfg): Ditto.
4274         (remove_useless_stmts): Ditto.
4275         (split_critical_edges): Ditto.
4276         (execute_warn_function_return): Ditto.
4277         (execute_warn_function_noreturn): Ditto.
4278         * gcc/tree-ssa-reassoc.c (execute_reassoc): Ditto.
4279         * gcc/cfgrtl.c (free_bb_for_insn): Ditto.
4280         * gcc/passes.c (execute_one_pass): Run additional
4281         todos returned by execute function.
4282         * gcc/tree-pass.h (struct tree_opt_pass): Make execute
4283         return a value.
4284
4285 2006-03-02  Richard Guenther  <rguenther@suse.de>
4286
4287         * tree-ssa-alias.c (find_used_portions): Consider taking
4288         the address as making the variable not write-only.
4289
4290 2006-03-02  Nick Clifton  <nickc@redhat.com>
4291
4292         * config.gcc (default_use_cxa_atexit): Extend the description of
4293         this configure variable.  Set its default value to "yes" for
4294         Linux, NetBSD and ELF targets on the assumption that they will
4295         use C libraries with the __cxa_atexit function.
4296
4297 2006-03-02  Ben Elliston  <bje@au.ibm.com>
4298
4299         * config/rs6000/linux-unwind.h (frob_update_context): Mark `fs'
4300         parameter as unused to suppress a build warning.
4301
4302 2006-03-02  Ben Elliston  <bje@au.ibm.com>
4303
4304         * mklibgcc.in: Depend on config/dfp-bit.h in rules that compile
4305         config/dfp-bit.c.
4306
4307 2006-03-01  Roger Sayle  <roger@eyesopen.com>
4308
4309         PR other/26489
4310         * gthr-posix.h (__gthrw2): Define to take three parameters, the
4311         declared name, the weak reference name, and the typeof name.
4312         (__gthrw): Avoid expanding the declared name suffix.
4313         (__gthrw3): New Tru64 specific macro to simplify the OSF/1 decls.
4314
4315 2006-03-01  Jakub Jelinek  <jakub@redhat.com>
4316
4317         * dwarf2.h (DW_TAG_condition, DW_TAG_shared_type): New constants
4318         from DWARF 3.
4319         (DW_AT_description, DW_AT_binary_scale, DW_AT_decimal_scale,
4320         DW_AT_small, DW_AT_decimal_sign, DW_AT_digit_count,
4321         DW_AT_picture_string, DW_AT_mutable, DW_AT_threads_scaled,
4322         DW_AT_explicit, DW_AT_object_pointer, DW_AT_endianity,
4323         DW_AT_elemental, DW_AT_pure, DW_AT_recursive): New.
4324         (DW_OP_form_tls_address, DW_OP_call_frame_cfa, DW_OP_bit_piece): New.
4325         (DW_ATE_packed_decimal, DW_ATE_numeric_string, DW_ATE_edited,
4326         DW_ATE_signed_fixed, DW_ATE_unsigned_fixed): New.
4327         (DW_DS_unsigned, DW_DS_leading_overpunch, DW_DS_trailing_overpunch,
4328         DW_DS_leading_separate, DW_DS_trailing_separate): New.
4329         (DW_END_default, DW_END_big, DW_END_little): New.
4330         (DW_END_lo_user, DW_END_hi_user): Define.
4331         (DW_LNE_lo_user, DW_LNE_hi_user): Define.
4332         (DW_CFA_val_offset, DW_CFA_val_offset_sf, DW_CFA_val_expression): New.
4333         (DW_LANG_PLI, DW_LANG_ObjC, DW_LANG_ObjC_plus_plus, DW_LANG_UPC,
4334         DW_LANG_D): New.
4335
4336 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
4337
4338         * tree.def (SYMBOL_MEMORY_TAG): Rename from TYPE_MEMORY_TAG.
4339         Update all users.
4340         * tree-pass.h (PROP_smt_usage): Rename from PROP_tmt_usage.
4341         Update all users.
4342         (TODO_update_smt_usage): Rename from TODO_update_tmt_usage.
4343         Update all users.
4344         * tree.h (SMT_USED_ALONE): Rename from TMT_USED_ALONE.
4345         Update all users.
4346         * tree-flow.h (struct var_ann_d): Rename field 'type_mem_tag'
4347         to 'symbol_mem_tag'.
4348         Update all users.
4349         * doc/tree-ssa.texi: Update documentation to reflect TMT->SMT
4350         rename.
4351
4352 2006-03-01  Roger Sayle  <roger@eyesopen.com>
4353
4354         * builtins.c (fold_builtin_copysign): Delete unreachable code.
4355
4356 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
4357
4358         PR target/25761
4359         * config/darwin.h (MACHOPIC_JUST_INDIRECT): Check just
4360         MACHO_DYNAMIC_NO_PIC_P.
4361         (MACHOPIC_PURE): Check flag_pic and not MACHO_DYNAMIC_NO_PIC_P.
4362
4363 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
4364
4365         PR target/26389
4366         * config/darwin-protos.h (darwin_asm_output_anchor):
4367         Declare.
4368         * config/darwin-sections.def (cstring_section):
4369         Add SECTION_MERGE to the flags.
4370         (literal4_section): Likewise.
4371         (literal8_section): Likewise.
4372         (objc_selector_refs_section): Likewise.
4373         (objc_cls_refs_section): Likewise.
4374         * config/darwin.c (darwin_asm_output_anchor): New
4375         function.
4376         * config/darwin.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
4377
4378 2006-03-01  Daniel Berlin  <dberlin@dberlin.org>
4379
4380         Fix PR tree-optimization/26443
4381         * tree-vrp.c (pass_vrp): Add TODO_update_tmt_usage
4382         to todo and PROP_tmt_usage to properties_destroyed.
4383         * tree-ssa-ccp.c (pass_ccp): Ditto.
4384         (pass_store_ccp): Ditto.
4385         * tree-ssa-dom.c (pass_dominator): Ditto.
4386
4387 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
4388
4389         * tree-ssa-operands.c: Cleanup whitespace.
4390         (get_asm_expr_operands): Move before first invocation.
4391         (get_indirect_ref_operands): Likewise.
4392         (get_tmr_operands): Likewise.
4393         (get_call_expr_operands): Likewise.
4394         (append_def): Likewise.
4395         (append_use): Likewise.
4396         (append_v_may_def): Likewise.
4397         (append_v_must_def): Likewise.
4398         (add_call_clobber_ops): Likewise.
4399         (add_call_read_ops): Likewise.
4400         (add_stmt_operand): Likewise.
4401         (add_virtual_operand): Likewise.
4402         (build_ssa_operands): Likewise.
4403
4404 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
4405
4406         PR middle-end/26022
4407         Revert:
4408         PR middle-end/24437
4409         * tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
4410         with a call expr to ...
4411         * fold-const.c (fold_ternary) <case CALL_EXPR>: Here.
4412
4413 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
4414
4415         * tree-vrp.c (extract_range_from_assert): Remove special
4416         handling for types with super-types.
4417
4418 2006-03-01  Ben Elliston  <bje@au.ibm.com>
4419
4420         * config.gcc: Add t-dfprules to $tmake_file for powerpc-*-linux*
4421         and powerpc64-*-linux* configurations.
4422         * config/t-dfprules: New file.
4423
4424         * mklibgcc.in: Add logic to handle $DFP_ENABLE and $DFP_CFLAGS.
4425         Compile dfp-bit.c from the source directory using -DWIDTH and
4426         $DFP_CFLAGS to control the compilation of that file, rather than
4427         generating width-specific versions in the build directory.
4428         * Makefile.in (libgcc.mk): Pass down DFP_ENABLE and DFP_CFLAGS.
4429         (LIBGCC_DEPS): Replace $(D32PBIT) et al with config/dfp-bit.[hc].
4430
4431 2006-02-28  Zack Weinberg  <zackw@panix.com>
4432
4433         * doc/md.texi: Avoid use of @headitem so that makeinfo <4.7
4434         continues to work.
4435
4436 2006-02-28  Eric Christopher  <echristo@apple.com>
4437
4438         * config/rs6000/darwin.h (ENABLE_STACK_EXECUTE): Define.
4439         Set up IN_LIBGCC definition of TARGET_64BIT.
4440         * config/i386/darwin.h (ENABLE_STACK_EXECUTE): Define.
4441
4442 2006-02-28  Roger Sayle  <roger@eyesopen.com>
4443
4444         PR middle-end/14752
4445         * c-common.c (c_common_truthvalue_conversion) <MINUS_EXPR,
4446         BIT_XOR_EXPR, BIT_AND_EXPR>: Delete.  Let fold optimize these
4447         cases via the construction of "expr != 0".
4448
4449 2006-02-28  Steven Bosscher  <stevenb.gcc@gmail.com>
4450
4451         * alias.c (alias_invariant, alias_invariant_size): Remove.
4452         (record_base_value): Remove.
4453         (memrefs_conflict_p): Don't look at alias_invariant.
4454         (end_alias_analysis): Don't free it.
4455         * alias.h (record_base_value): Remove prototype.
4456
4457 2006-02-28  Paolo Bonzini  <bonzini@gnu.org>
4458             Adam Nemet  <anemet@caviumnetworks.com>
4459
4460         * rtl.h (truncated_to_mode): Declare it.
4461         (struct rtl_hooks): Add reg_truncated_to_mode hook.
4462         * rtlhooks-def.h (RTL_HOOKS_REG_TRUNCATED_TO_MODE): New macro.
4463         (RTL_HOOKS_INITIALIZER): Include it.
4464         * rtlhooks.c (reg_truncated_to_mode_general): New function.
4465         * combine.c (RTL_HOOKS_REG_TRUNCATED_TO_MODE): Override to
4466         reg_truncated_to_mode.
4467         * rtlanal.c (truncated_to_mode): Define it.
4468         * simplify-rtx.c (simplify_unary_operation_1): Use it.
4469
4470 2006-02-28  Jeff Law  <law@redhat.com>
4471
4472         * tree-chrec.c (chrec_convert_aggressive): Do not eliminate
4473         conversions where TYPE_MIN_VALUE/TYPE_MAX_VALUE do not cover
4474         the range allowed by TYPE_PRECISION.
4475
4476         * tree.h (strct phi_arg_d): Remove unused NONZERO field.
4477
4478 2006-02-28  Dorit Nuzman  <dorit@il.ibm.com>
4479
4480         PR tree-optimization/26419
4481         * doc/invoke.texi (ftree-vectorizer-verbose): Add information on
4482         values of n.
4483
4484 2006-02-27  Zack Weinberg  <zackw@panix.com>
4485
4486         * doc/md.texi: Fix typo in previous change.
4487
4488 2006-02-27  Kenneth Zadeck <zadeck@naturalbridge.com>
4489
4490         * df.c: Remove.
4491
4492 2006-02-27  Zack Weinberg  <zackw@panix.com>
4493
4494         * rtl.def (define_constraint, define_register_constraint)
4495         (define_memory_constraint, define_address_constraint): New MD forms.
4496         * gensupport.c (process_rtx): Put define_constraint etc on the
4497         predicate queue.
4498         * genpreds.c (process_define_predicate): Adjust comment.  Validate
4499         the name, and call validate_exp to validate the expression.
4500         (mark_mode_tests, write_extract_subexp): Can assume correct input.
4501         (write_predicate_expr): Likewise.  NAME argument no longer necessary;
4502         all callers changed.
4503         (validate_exp, needs_variable, struct constraint_data)
4504         (constraints_by_letter_table, first_constraint, last_constraint_ptr)
4505         (FOR_ALL_CONSTRAINTS, generic_constraint_letters, const_int_constraints)
4506         (const_dbl_constraints, constraint_max_namelen)
4507         (have_register_constraints, have_memory_constraints)
4508         (have_address_constraints, have_address_constraints)
4509         (have_extra_constraints, have_const_int_constraints)
4510         (have_const_dbl_constraints, mangle, add_constraint)
4511         (process_define_constraint, process_define_register_constraint)
4512         (write_enum_constraint_num, write_lookup_constraint)
4513         (write_insn_constraint_len, write_regclass_for_constraint)
4514         (write_constraint_satisfied_p, write_insn_const_int_ok_for_constraint)
4515         (write_insn_extra_memory_constraint)
4516         (write_insn_extra_address_constraint)
4517         (write_satisfies_constraint_fns): New.
4518         (write_tm_preds_h): If we have new-style constraint definitions,
4519         prototype the functions generated from them, and define the
4520         old constraint interface (still used by generic code) in terms of
4521         those functions.
4522         (write_insn_preds_c): If we have new-style constraint definitions,
4523         generate all relevant functions from those definitions.
4524         (main): Handle define_constraint etc.
4525         * genoutput.c (struct constraint_data, indep_constraints)
4526         (mdep_constraint_letters, constraints_by_letter_table, note_constraint)
4527         (mdep_constraint_len): New data structures and functions, defined
4528         #ifdef USE_MD_CONSTRAINTS.
4529         (check_constraint_len): Don't define #ifdef USE_MD_CONSTRAINTS.
4530         (validate_insn_alternatives): If USE_MD_CONSTRAINTS is defined,
4531         use new logic to validate operand constraints against constraint
4532         definitions.
4533         (main): Process define_constraint etc. if USE_MD_CONSTRAINTS is
4534         defined.
4535         * defaults.h: If none of the old-style constraint macros are
4536         defined, define USE_MD_CONSTRAINTS; do not provide defaults for any
4537         old-style macros; and poison REG_CLASS_FROM_LETTER,
4538         CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P, and
4539         EXTRA_CONSTRAINT.
4540         * recog.c (reg_fits_class_p): If cl is NO_REGS, return 0 immediately.
4541         * doc/md.texi: Document new constraint-definition mechanism and the
4542         C interface it provides.  Remove references to old mechanism
4543         elsewhere in the document.
4544         (Machine Constraints): Use pathnames relative to gcc directory,
4545         i.e. config/ARCH/FILE.  Change i386 section to refer to
4546         config/i386/predicates.md; update that section to match docstrings.
4547         * doc/tm.texi: Move all documentation of the old constraint-
4548         definition macros to their own section, clearly mark as obsolete.
4549
4550         * config/i386/predicates.md (R, q, Q, l, a, b, c, d, S, D, A, f, t)
4551         (u, y, x, Y, I, J, K, L, M, N, O, G, C, e, Z): New constraint
4552         definitions.
4553         * config/i386/i386.h (REG_CLASS_FROM_LETTER, CONST_OK_FOR_LETTER_P)
4554         (CONST_DOUBLE_OK_FOR_LETTER_P, EXTRA_CONSTRAINT): Delete.
4555         * config/i386/i386.md (*movdf_nointeger): Remove stray 'H' from
4556         constraint strings.
4557         (splits and peepholes): Use satisfies_constraint_*.
4558         * config/i386/i386.c (memory_address_length)
4559         (ix86_attr_length_immediate_default): Use satisfies_constraint_*.
4560
4561 2006-02-27  Daniel Berlin  <dberlin@dberlin.org>
4562
4563         * lambda-code.c (can_convert_to_perfect_nest): Allow any type of
4564         scalar operation to be put back into the loop.
4565
4566 2006-02-27  Jakub Jelinek  <jakub@redhat.com>
4567
4568         PR other/26208
4569         * unwind-dw2.c (struct _Unwind_Context): Add signal_frame field.
4570         (extract_cie_info): Handle S flag in augmentation string.
4571         (execute_cfa_program): If context->signal_frame, execute also
4572         fs->pc == context->ra instructions.
4573         (uw_frame_state_for): If context->signal_frame, don't subtract one
4574         from context->ra to find FDE.
4575         (uw_update_context_1): Set context->signal_frame to
4576         fs->signal_frame.
4577         (_Unwind_GetIPInfo): New function.
4578         * unwind-dw2.h (_Unwind_FrameState): Add signal_frame field.
4579         * unwind-c.c (PERSONALITY_FUNCTION): Use _Unwind_GetIPInfo instead
4580         of _Unwind_GetIP.
4581         * unwind-sjlj.c (_Unwind_GetIPInfo): New function.
4582         * unwind-generic.h (_Unwind_GetIPInfo): New prototype.
4583         * unwind-compat.c (_Unwind_GetIPInfo): New function.
4584         * libgcc-std.ver (_Unwind_GetIPInfo): Export @@GCC_4.2.0.
4585         * config/ia64/unwind-ia64.c (_Unwind_GetIPInfo): New function.
4586         * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Define.
4587         * config/i386/linux-unwind.h (x86_fallback_frame_state,
4588         x86_64_fallback_frame_state): Set fs->signal_frame.
4589         * config/rs6000/linux-unwind.h (ppc_fallback_frame_state): Likewise.
4590         (MD_FROB_UPDATE_CONTEXT): Define unconditionally.
4591         (frob_update_context): Likewise.  Workaround missing S flag in
4592         Linux 2.6.12 - 2.6.16 kernel vDSOs.
4593         * config/s390/linux-unwind.h (s390_fallback_frame_state): Likewise.
4594         Remove the psw_addr + 1 hack.
4595
4596 2006-02-27  Daniel Berlin  <dberlin@dberlin.org>
4597
4598         * tree-ssa-structalias.c (get_constraint_for): Move code to deal
4599         with aggregates here.
4600         (find_func_aliases): Remove code for &<aggregate> from here.
4601
4602 2006-02-26  Roger Sayle  <roger@eyesopen.com>
4603
4604         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold (~X & C) eq/ne 0 as
4605         (X & C) ne/eq 0, where C is a single bit, i.e. a power of two.
4606         Fold both "((X & C) ^ C) eq/ne 0" and "((X ^ C) & C) eq/ne 0"
4607         as (X & C) ne/eq 0.
4608
4609 2006-02-26  Roger Sayle  <roger@eyesopen.com>
4610
4611         PR middle-end/19983
4612         * real.c (real_nan): Allow both 0x and 0X as hexadecimal prefixes.
4613
4614 2006-02-26  Zdenek Dvorak <dvorakz@suse.cz>
4615
4616         * opts.c (decode_options): Do not handle flag_strength_reduce.
4617         (common_handle_option): Handle OPT_floop_optimize, OPT_frerun_loop_opt
4618         and OPT_fstrength_reduce.
4619         * tree-ssa-loop.c (tree_ssa_loop_prefetch): Only test
4620         flag_prefetch_loop_arrays for being nonzero.
4621         * common.opt (floop-optimize, frerun-loop-opt): Resurrected as
4622         no-ops.
4623         (fprefetch-loop-arrays-rtl): Removed.
4624         (flag_prefetch_loop_arrays): Do not specify the value.
4625
4626         * doc/passes.texi: Update documentation of loop optimizer
4627         passes.
4628         * doc/invoke.texi (-fstrength-reduce, -fprefetch-loop-arrays-rtl,
4629         -frerun-loop-opt): Remove.
4630
4631 2006-02-26  Richard Guenther  <rguenther@suse.de>
4632
4633         PR tree-optimization/26421
4634         * tree-ssa-alias.c (find_used_portions): Don't treat parameters
4635         in function calls that are ADDR_EXPRs as using the whole structure.
4636
4637 2006-02-26  Steven Bosscher  <stevenb.gcc@gmail.com>
4638
4639         * common.opt (-floop-optimize, -frerun-loop-opt): Remove.
4640         * tree-pass.h (pass_loop_optimize): Remove.
4641         * passes.c (pass_loop_optimize): Never run it.
4642         * toplev.c (backend_init): Don't call init_loop.
4643         * opts.c (flag_loop_optimize_set): Remove.
4644         (decode_options): Never set flag_loop_optimize or flag_rerun_loop_opt.
4645         (common_handle_option) <OPT_floop_optimize>: Remove.  Don't disable
4646         the old RTL loop optimizer when profiling enabled.
4647         * predict.c (tree_estimate_probability): Always strip builtin_expect.
4648         * cfgcleanup.c (try_forward_edges): Don't avoid killing loop
4649         pre-headers for the sake of the old RTL loop optimizer.
4650         * Makefile.in: Remove all references to loop.o.
4651
4652         * doc/invoke.texi: Remove all references to -floop-optimize
4653         and -frerun-loop-opt.
4654
4655 2006-02-26  Zack Weinberg  <zackw@panix.com>
4656
4657         * doc/md.texi (Machine Constraints): Refer to all files with paths
4658         relative to gcc directory (i.e. config/CPU/file).  Add missing
4659         @table @code ... @end table to M32C subsection.
4660
4661 2006-02-26  Roger Sayle  <roger@eyesopen.com>
4662
4663         * fold-const.c (fold_binary) <BIT_XOR_EXPR>: Fold (X & 1) ^ 1 as
4664         (X & 1) == 0.
4665         <BIT_AND_EXPR>: Fold (X ^ 1) & 1 and ~X & 1 as (X & 1) == 0.
4666
4667 2006-02-26  Roger Sayle  <roger@eyesopen.com>
4668             James A. Morrison  <phython@gcc.gnu.org>
4669
4670         PR middle-end/21137
4671         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold ((X>>C1)&C2) eq/ne 0,
4672         when C2 is a power of two, as either (X&(C2<<C1)) eq/ne 0 if the
4673         new constant C2<<C1, or as (X<0) or (X,false) depending upon the
4674         signedness of the shift operation.
4675
4676 2006-02-26  Dorit Nuzman  <dorit@il.ibm.com>
4677
4678         PR tree-optimization/26359
4679         * tree-ssa-alias.c (new_type_alias): Set fields for new tag.
4680
4681 2006-02-25  Roger Sayle  <roger@eyesopen.com>
4682
4683         * simplify-rtx.c (simplify_relational_operation_1):  Simplify
4684         (X^Y) == 0 as X == Y and (X^Y) != 0 as X != Y.  Simplify (X^Y) == Y
4685         as X == 0, and some symmetry related transformations.
4686         Simplify (X^C1) == C2 as X == (C1^C2).  Split long comment line.
4687
4688 2006-02-25  Roger Sayle  <roger@eyesopen.com>
4689
4690         PR middle-end/23673
4691         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold (X^Y) == 0 as X == Y
4692         and (X^Y) != 0 as X != Y.  Fold (X^Y) == Y as X == 0, and some
4693         symmetry related transformations.  Fold (X^C1) == C2 as
4694         X == (C1^C2).
4695
4696 2006-02-25  Juergen Weigert  <jw@suse.de>
4697         Richard Guenther  <rguenther@suse.de>
4698
4699         * scan-decls.c (scan_decls): Don't fetch new statement after CPP_EOF.
4700
4701 2006-02-24  Adam Nemet  <anemet@caviumnetworks.com>
4702
4703         * combine.c (gen_lowpart_or_truncate): Call
4704         simplify_gen_unary(TRUNCATE, ...) instead of gen_rtx_TRUNCATE.
4705
4706 2006-02-24  Diego Novillo  <dnovillo@redhat.com>
4707
4708         * doc/invoke.texi: Move -fopenmp description to "Options for
4709         Code Generation".
4710         Remove reference to -lgomp.
4711
4712 2006-02-24  David Edelsohn  <edelsohn@gnu.org>
4713
4714         * doc/install.texi: Require GNU tar version 1.14.
4715
4716 2006-02-24  Geoffrey Keating  <geoffk@apple.com>
4717
4718         * doc/tm.texi (Run-time Target): Document C_COMMON_OVERRIDE_OPTIONS.
4719         * doc/invoke.texi (C++ Dialect Options): Document
4720         -fno-use-cxa-get-exception-ptr.
4721         * configure.ac: Define DEFAULT_USE_CXA_ATEXIT to 2 not 1.
4722         * configure: Regenerate.
4723         * c.opt (fuse-cxa-get-exception-ptr): New.
4724         * c-opts.c (c_common_handle_option): Handle
4725         OPT_fuse_cxa_get_exception_ptr.
4726         * c-common.c (flag_use_cxa_atexit): Update documentation.
4727         (flag_use_cxa_get_exception_ptr): New.
4728         * c-common.h (flag_use_cxa_get_exception_ptr): New.
4729         * config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): Improve
4730         documentation.
4731         (C_COMMON_OVERRIDE_OPTIONS): New.
4732
4733 2006-02-24  Roger Sayle  <roger@eyesopen.com>
4734
4735         PR middle-end/24952
4736         * combine.c (try_combine): Explicitly check whether GET_CODE is
4737         a SET or a CLOBBER, instead on checking that it isn't a USE.
4738
4739 2006-02-24  Roger Sayle  <roger@eyesopen.com>
4740
4741         * fold-const.c (fold_comparison): New subroutine of fold_binary
4742         containing transformations common to both the equality and
4743         ordering relational operators, factored out of fold_binary.
4744         (fold_binary): Separate out the equality operators (EQ_EXPR
4745         and NE_EXPR) from the ordering operators (LT_EXPR, GT_EXPR,
4746         LE_EXPR and GE_EXPR), calling fold_comparison to perform the
4747         transformations common to both.
4748         (fold_div_compare): Fix latent bugs in the previously unreachable
4749         LT_EXPR and GE_EXPR cases.
4750
4751 2006-02-24  David Edelsohn  <edelsohn@gnu.org>
4752
4753         * config/rs6000/rs6000.c (rs6000_init_builtins): Change
4754         decl libname for clog to __clog on AIX.
4755
4756         * config/rs6000/xcoff.h (MAX_OFILE_ALIGNMENT): Define.
4757
4758 2006-02-24  Alan Modra  <amodra@bigpond.net.au>
4759
4760         PR target/26453
4761         * config/rs6000/rs6000.c (rs6000_output_function_epilogue): Don't
4762         output traceback table for thunks.  Localise rs6000_stack_info call.
4763
4764 2006-02-23  Roger Sayle  <roger@eyesopen.com>
4765             Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
4766
4767         * gthr-posix.h (__gthrw): Fix typo in comment.
4768
4769 2006-02-23  Geoffrey Keating  <geoffk@apple.com>
4770
4771         * doc/cpp.texi (Character sets): Document that we do support
4772         input files to be in any character set.
4773
4774 2006-02-23  Jeff Law  <law@redhat.com>
4775
4776         * tree.h (PHI_ARG_NONZERO): Remove.
4777         * tree-phinodes.c (add_phi_arg): No longer initialize PHI_ARG_NONZERO.
4778         (remove_phi_arg_num): No longer copy PHI_ARG_NONZERO from the old
4779         node to the new node.
4780
4781         PR tree-optimization/26425
4782         * tree-vrp.c (vrp_visit_assignment): If the LHS's type has a NULL
4783         min/max, then assume its varying.
4784
4785 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
4786
4787         PR rtl-optimization/26316
4788         * rtlanal.c (enum may_trap_p_flags): New.
4789         (may_trap_p_1): Take flags instead of unaligned_mems argument.  Ignore
4790         MEM_NOTRAP_P if flags & MTP_AFTER_MOVE.
4791         (may_trap_p, may_trap_or_fault_p): Pass flags to may_trap_p_1.
4792         (may_trap_after_code_motion_p): New function.
4793         * loop-invariant.c (find_identical_invariants): Fix dump formating.
4794         (find_invariant_insn): Use may_trap_after_code_motion_p.
4795         * rtl.h (may_trap_after_code_motion_p): Declare.
4796
4797 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
4798
4799         * emit-rtl.c (immed_double_const): Cleanup.
4800
4801 2006-02-23  Daniel Berlin  <dberlin@dberlin.org>
4802
4803         Fix PR tree-optimization/26376
4804         * tree-ssa-structalias.c (find_func_aliases):  Use get_id_for_tree,
4805         remove assert.
4806
4807 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
4808
4809         PR middle-end/26412
4810         * gimplify.c (omp_add_variable): Guard variable size decl test with
4811         DECL_SIZE (decl) check.
4812
4813 2006-02-23  Richard Guenther  <rguenther@suse.de>
4814
4815         PR middle-end/26439
4816         * tree-ssa-structalias.c (find_func_aliases): Handle complex types
4817         like aggregate types.
4818
4819 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
4820
4821         * configure.ac: Add --with{,out}-long-double-128 configure option.
4822         (TARGET_DEFAULT_LONG_DOUBLE_128): New test.
4823         * configure: Rebuilt.
4824         * config.in: Rebuilt.
4825         * doc/install.texi (Options specification): Document
4826         --with-long-double-128.
4827
4828         * config/rs6000/linux.h [TARGET_DEFAULT_LONG_DOUBLE_128]
4829         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
4830         * config/rs6000/linux64.h [TARGET_DEFAULT_LONG_DOUBLE_128]
4831         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
4832
4833 2006-02-23  Aldy Hernandez  <aldyh@redhat.com>
4834
4835         * config/s390/s390.c (override_options): Handle
4836         TARGET_DEFAULT_LONG_DOUBLE_128.
4837
4838         * config/alpha/alpha.c (override_options): Handle
4839         TARGET_DEFAULT_LONG_DOUBLE_128.
4840
4841         * config/sparc/sparc.c (sparc_override_options): Handle
4842         TARGET_DEFAULT_LONG_DOUBLE_128.
4843
4844 2006-02-22  Daniel Jacobowitz  <dan@codesourcery.com>
4845
4846         * Makefile.in (stmp-fixinc): Use real-$(INSTALL_HEADERS_DIR).
4847         (real-install-headers-tar, real-install-headers-cpio)
4848         (real-install-headers-cp): New targets.
4849
4850 2006-02-22  Richard Sandiford  <richard@codesourcery.com>
4851
4852         * tree.h (variable_section): Delete.
4853         * varasm.c (variable_section): Delete.
4854
4855 2006-02-22  Paolo Bonzini  <bonzini@gnu.org>
4856
4857         * install.texi: Add notes on install.texi2html.
4858         (Building in parallel): Do not use footnotes.
4859
4860 2006-02-21  Aldy Hernandez  <aldyh@redhat.com>
4861
4862         PR libgomp/26234
4863         * doc/install.texi (Configuration): Document --disable-libgomp.
4864
4865 2006-02-21  Geoffrey Keating  <geoffk@apple.com>
4866
4867         * config/i386/darwin.h (DWARF2_FRAME_REG_OUT): New.
4868
4869 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
4870
4871         * config/i386/sse.md (vec_extractv2df_1_sse): New.
4872         (vec_extractv2df_0_sse): New.
4873
4874 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
4875
4876         * defaults.h (CFA_FRAME_BASE_OFFSET): Define.
4877         * config/ia64/ia64.h (CFA_FRAME_BASE_OFFSET): Override.
4878         * doc/tm.texi (CFA_FRAME_BASE_OFFSET): Document.
4879         * dwarf2out.c (build_cfa_loc): New offset parameter.  Add it
4880         to the result of the expression.
4881         (def_cfa_1): Adjust.
4882         (frame_pointer_cfa_offset): Rename to...
4883         (frame_pointer_fb_offset): ... this.  Adjust all uses.
4884         (convert_cfa_to_loc_list): Rename to...
4885         (convert_cfa_to_fb_loc_list): ... this.  New offset parameter.
4886         Pass it on to build_cfa_loc.
4887         (compute_frame_pointer_to_cfa_displacement): Rename to...
4888         (compute_frame_pointer_to_fb_displacement): ... this.  New
4889         offset parameter.  Use it in computation.
4890         (gen_subprogram_die): Compute cfa_fb_offset with the new
4891         macro, and use it to compute the fb loc list and the
4892         displacement.
4893
4894 2006-02-21  Bernd Schmidt  <bernd.schmidt@analog.com>
4895
4896         * config/bfin/predicates.md (cc_operand): Delete predicate.  All uses
4897         replaced with register_operand.
4898         * config/bfin/bfin.c (bfin_register_move_cost): Moving CC to any
4899         non-DREG is expensive.
4900         * config/bfin/bfin.h (FIXED_REGISTERS): CC isn't fixed.
4901         * config/bfin/bfin.md (movbi): Fix constraints and template for moves
4902         involving memory.
4903
4904 2006-02-21  Joseph S. Myers  <joseph@codesourcery.com>
4905
4906         * doc/install.texi2html: Use set -e.
4907
4908 2006-02-21  Richard Sandiford  <richard@codesourcery.com>
4909
4910         * doc/tm.texi (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
4911         (ASM_OUTPUT_SHARED_LOCAL): Delete.
4912         * doc/invoke.texi (-fshared-data): Delete.
4913         * common.opt (fshared-data): Delete.
4914         * varasm.c (asm_emit_uninitialised): Remove flag_shared_data handling.
4915         (assemble_static_space): Remove #if 0 code.
4916         * system.h (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
4917         (ASM_OUTPUT_SHARED_LOCAL): Poison.
4918         * config/cris/cris.h: Remove FIXME.
4919
4920 2006-02-21  Paolo Bonzini  <bonzini@gnu.org>
4921
4922         * doc/sourcebuild.texi (Front End Directory): No more double-colon
4923         hooks.
4924
4925 2006-02-21  Jakub Jelinek  <jakub@redhat.com>
4926
4927         PR middle-end/26379
4928         * combine.c (simplify_shift_const_1): Disable nested shifts
4929         optimization for vector shifts.
4930
4931 2006-02-20  Roger Sayle  <roger@eyesopen.com>
4932
4933         PR tree-optimization/26361
4934         * tree-vrp.c (extract_range_from_unary_expr): Handle NEGATE_EXPR
4935         of unsigned integer types.
4936
4937 2006-02-20  Sebastian Pop  <pop@cri.ensmp.fr>
4938
4939         * tree-chrec.c (eq_evolutions_p): New.
4940         * tree-chrec.h (eq_evolutions_p): Declared.
4941         * tree-data-ref.c: Fix formatting.
4942         (datadep_stats, dependence_stats): New.
4943         (gcd): Moved...
4944         (print_direction_vector): New.
4945         (dump_data_dependence_relation): Use print_direction_vector.
4946         (object_analysis, create_data_ref): Handle COMPONENT_REF.
4947         (compute_subscript_distance): Static.
4948         (initialize_data_dependence_relation): Static.  Get the number
4949         of loops surrounding the references from the callers, and initialize
4950         DDR_SIZE_VECT to nb_loops.  Use both base_addr_differ_p and
4951         base_object_differ_p analyzers.
4952         (analyze_ziv_subscript, analyze_siv_subscript_cst_affine,
4953         compute_overlap_steps_for_affine_1_2,
4954         analyze_subscript_affine_affine): Count the classified dependences.
4955         Print a message when a test failed.
4956         (can_use_analyze_subscript_affine_affine): New.
4957         (analyze_siv_subscript): Compute the data dependences on symbolic
4958         scevs that verify can_use_analyze_subscript_affine_affine.
4959         (chrec_steps_divide_constant_p): Returns true, false, or unknown.
4960         (analyze_miv_subscript): Update use of chrec_steps_divide_constant_p.
4961         Handle symbolic scevs.
4962         (analyze_overlapping_iterations): Let symbolic affine scevs to be
4963         analyzed.
4964         (subscript_dependence_tester): Moved...
4965         (build_classic_dist_vector, build_classic_dir_vector): Don't use
4966         lambda_vector_clear on newly allocated vectors.  Get nb_loops from
4967         DDR_SIZE_VECT instead of getting it in parameter.
4968         (subscript_dependence_tester): ... here.  Take as a parameter
4969         loop_nest_depth.  Call build_classic_dist_vector and
4970         build_classic_dir_vector.
4971         (compute_affine_dependence): Update subscript_dependence_tester
4972         parameters.  Update datadep_stats counters.  Call
4973         compute_subscript_distance.
4974         (compute_self_dependence): Save the dist and dir vectors.  Call
4975         compute_subscript_distance.
4976         (ddr_p, DEF_VEC_P(ddr_p), DEF_VEC_ALLOC_P(ddr_p,heap)): Moved...
4977         (compute_all_dependences): Reorder parameters as they were before
4978         conversion to VEC.  Pass nb_loops and loop_nest_depth.  Don't call
4979         compute_subscript_distance.  Update the use of
4980         compute_affine_dependence and initialize_data_dependence_relation.
4981         (find_data_references_in_loop): Handle COMPONENT_REF.
4982         (compute_data_dependences_for_loop): Initialize dependence_stats.
4983         Don't call build_classic_dist_vector and build_classic_dir_vector.
4984         Update the parameters of initialize_data_dependence_relation and
4985         compute_all_dependences.  Print the statistics from datadep_stats.
4986         (analyze_all_data_dependences): Static.  Not used until the pass for
4987         checking the data dependences is contributed.
4988         * tree-data-ref.h (ddr_p, DEF_VEC_P(ddr_p),
4989         DEF_VEC_ALLOC_P(ddr_p,heap)): ... here.
4990         (initialize_data_dependence_relation, compute_affine_dependence,
4991         analyze_all_data_dependences, compute_subscript_distance): Removed.
4992         (print_direction_vector): New.
4993         * lambda.h (gcd): ... here.
4994         (lambda_vector_gcd): Moved here from gcd_vector.
4995         * lambda-code.c (gcd, gcd_vector): Removed.
4996         (lambda_compute_target_space): Use lambda_vector_gcd.  Fix formatting.
4997         * Makefile.in (tree-vect-patterns.o): Depends on TREE_DATA_REF_H.
4998
4999 2006-02-20  Diego Novillo  <dnovillo@redhat.com>
5000
5001         * ipa-type-escape.c: Tidy some comments and white space.
5002         * tree-ssa-operands.c: Likewise.
5003
5004 2006-02-20  Andrew Pinski  <pinskia@physics.uc.edu>
5005
5006         PR tree-opt/25879
5007         * tree-pretty-print.c (debug_tree_chain): Walk the chains.
5008         (dump_decl_name): Do not walk the decl tree chains.
5009         * tree-pass.h (TDF_CHAIN): Remove.
5010
5011 2006-02-20  Rafael Ávila de Espíndola  <rafael.espindola@gmail.com>
5012
5013         * Makefile.in (C): Remove
5014         (PROTO): Remove
5015         (.PHONY): Remove C and PROTO
5016
5017 2006-02-20  Roger Sayle  <roger@eyesopen.com>
5018
5019         PR middle-end/26236
5020         * doc/c-tree.texi (INTEGER_TYPE): Remove reference to the now
5021         deprecated CHAR_TYPE tree code.
5022
5023 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
5024
5025         * configure.ac (target_list): Add install-info, dvi, html.
5026         * configure: Regenerate.
5027
5028         * ada/Make-lang.in, cp/Make-lang.in, fortran/Make-lang.in,
5029         java/Make-lang.in, objc/Make-lang.in, objcp/Make-lang.in,
5030         treelang/Make-lang.in: Do not use double-colon rules.
5031
5032 2006-02-20  Daniel Berlin  <dberlin@dberlin.org>
5033
5034         * tree.h (struct tree_memory_tag): Add is_used_alone member.
5035         (TMT_USED_ALONE): New macro.
5036         * tree-pass.h (PROP_tmt_usage): New property.
5037         (TODO_update_tmt_usage): New todo.
5038         * tree-ssa-alias.c (updating_used_alone): New variable.
5039         (recalculate_used_alone): New function.
5040         (compute_may_aliases): Set updating_used_alone, call
5041         recalculate_used_alone.
5042         * tree-sra.c (pass_sra): Note that this pass destroys
5043         PROP_tmt_usage, and add TODO_update_tmt_usage.
5044         * tree-ssa-forwprop.c (pass_forwprop): Ditto.
5045         * tree-flow.h (updating_used_alone): Prototype.
5046         (recalculate_used_alone): Ditto.
5047         * passes.c (execute_todo): Add code to set updating_used_alone,
5048         and call recalculate.
5049         * tree-ssa-operands.c (add_virtual_operand): Only append bare def
5050         for clobber if used alone, and add assert to verify used_alone
5051         status.
5052
5053 2006-02-20  Angel Nunez Mencias  <anunez@de.ibm.com>
5054
5055         * config/s390/s390.c (legitimize_pic_address): Assertions checking
5056         for non tls symbols added.
5057         (legitimize_address): Do nothing for PLUS expressions if one of the
5058         addends is a tls symbol reference.
5059
5060 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
5061
5062         PR bootstrap/25476
5063
5064         * Makefile.in (LDFLAGS): Define from autoconf substitution.
5065
5066         * Makefile.in (BOOTSTRAPPING): New.
5067         (quickstrap): New definition if BOOTSTRAPPING=yes.
5068
5069         * Makefile.in (CONFIG_LANGUAGES): Substitute all_selected_languages.
5070         * configure.ac: Substitute all_selected_languages with the languages
5071         that were configured.  For all the other variables except
5072         lang_specs_files, include all the languages in the tree.
5073         * configure: Regenerate.
5074
5075         * Makefile.in (stmp-fixinc): Copy includes from the prev-gcc directory,
5076         if there is one.  Run the commands to run fixincludes in the same
5077         subshell.
5078
5079         * doc/makefile.texi: Document new makefile targets from toplevel bootstrap.
5080         * doc/install.texi: Document exact conventions for searching target tools.
5081         Document --with-build-time-tools.  Document toplevel bootstrap.  Document
5082         something more about building an Ada cross-compiler.  Don't list GNU Make
5083         requirements which affect all platforms.
5084
5085 2006-02-19  Roger Sayle  <roger@eyesopen.com>
5086
5087         PR middle-end/19543
5088         * varasm.c (compare_constant) <INTEGER_CST>: Integer constants are
5089         only equivalent if the have both the same mode and precision.
5090
5091 2006-02-20  Ben Elliston  <bje@au.ibm.com>
5092
5093         * doc/tree-ssa.texi (Interfaces): Describe low vs. high GIMPLE.
5094
5095 2006-02-19  Roger Sayle  <roger@eyesopen.com>
5096             Steven Bosscher  <stevenb.gcc@gmail.com>
5097
5098         * gcse.c (want_to_gcse_p): On STACK_REGS targets, look through
5099         constant pool references to identify stack mode constants.
5100         * rtlanal.c (constant_pool_constant_p): New predicate to check
5101         whether operand is a floating point constant in the pool.
5102         * rtl.h (constant_pool_constant_p): Prototype here.
5103         * loop.c (scan_loop): Avoid hoisting constants from the constant
5104         pool on STACK_REGS targets.
5105         (load_mems): Likewise.
5106         * loop-invariant.c (get_inv_cost): Make hoisting constant pool
5107         loads into x87 registers expensive in terms of register pressure.
5108
5109 2006-02-19  Roger Sayle  <roger@eyesopen.com>
5110
5111         * gthr-posix.h: On Tru64, map __gthr_foo as a weak reference to
5112         __foo and not foo when _PTHREAD_USE_MANGLED_NAMES_ is defined.
5113
5114 2006-02-19  David Edelsohn  <edelsohn@gnu.org>
5115
5116         * config/rs6000/xcoff.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
5117         * config/rs6000/rs6000.c (rs6000_xcoff_asm_output_anchor): Define.
5118
5119 2006-02-19  Daniel Berlin  <dberlin@dberlin.org>
5120
5121         * doc/invoke.texi: Document -fipa-pta.
5122         * common.opt: Add ipa-pta option.
5123         * tree-ssa-structalias.c (DONT_PROPAGATE_WITH_ANYTHING): Removed.
5124         (do_sd_constraint): Enable DONT_PROPAGATE_WITH_ANYTHING code.
5125         (do_ds_constraint): Ditto.
5126         (get_constraint_for): Only add to referenced_vars if
5127         referenced_vars exists.
5128         (insert_into_field_list): Rewrite to do this unsorted.
5129         (insert_into_field_list_sorted): Rename old insert_into_field_list
5130         to this.
5131         (create_function_info_for): Use insert_into_field_list_sorted.
5132         (create_variable_info_for): Rewrite so it uses unsorted version,
5133         since the field list is sorted.
5134         (intra_create_variable_infos): Only add to referenced_vars if
5135         referenced_vars exists.
5136         (ipa_pta_execute): Init heapvars, and delete when done.
5137         * passes.c (init_optimization_passes): Add call to pass_ipa_pta.
5138
5139 2006-02-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
5140
5141         * doc/install.texi: Add missing `@samp'.
5142
5143 2006-02-18  Andrew Pinski <pinskia@physics.uc.edu>
5144
5145         * config/rs6000/darwin.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P):
5146         Use the arguments.
5147
5148 2006-02-18  Mark Wielaard  <mark@klomp.org>
5149
5150         * doc/contrib.texi (Contributors): Add classpath/libgcj hackers
5151         who added new 4.1 features, bug fixes and integration support.
5152
5153 2006-02-18  David Edelsohn  <edelsohn@gnu.org>
5154
5155         PR target/26350
5156         * config/rs6000/rs6000.md (extenddftf2): Force 0.0 to validized
5157         MEM for ABI_V4 pic.
5158
5159 2006-02-18  Richard Sandiford  <richard@codesourcery.com>
5160
5161         * cselib.c (cselib_init): Change RTX_SIZE to RTX_CODE_SIZE.
5162         * emit-rtl.c (copy_rtx_if_shared_1): Use shallow_copy_rtx.
5163         (copy_insn_1): Likewise.  Don't copy each field individually.
5164         Reindent.
5165         * read-rtl.c (apply_macro_to_rtx): Use RTX_CODE_SIZE instead
5166         of RTX_SIZE.
5167         * reload1.c (eliminate_regs): Use shallow_copy_rtx.
5168         * rtl.c (rtx_size): Rename variable to...
5169         (rtx_code_size): ...this.
5170         (rtx_size): New function.
5171         (rtx_alloc_stat): Use RTX_CODE_SIZE instead of RTX_SIZE.
5172         (copy_rtx): Use shallow_copy_rtx.  Don't copy each field individually.
5173         Reindent.
5174         (shallow_copy_rtx_stat): Use rtx_size instead of RTX_SIZE.
5175         * rtl.h (rtx_code_size): New variable.
5176         (rtx_size): Change from a variable to a function.
5177         (RTX_SIZE): Rename to...
5178         (RTX_CODE_SIZE): ...this.
5179
5180         PR target/9703
5181         PR tree-optimization/17106
5182         * doc/tm.texi (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Document.
5183         (Anchored Addresses): New section.
5184         * doc/invoke.texi (-fsection-anchors): Document.
5185         * doc/rtl.texi (SYMBOL_REF_IN_BLOCK_P, SYMBOL_FLAG_IN_BLOCK): Likewise.
5186         (SYMBOL_REF_ANCHOR_P, SYMBOL_FLAG_ANCHOR): Likewise.
5187         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): Likewise.
5188         * hooks.c (hook_bool_mode_rtx_false): New function.
5189         * hooks.h (hook_bool_mode_rtx_false): Declare.
5190         * gengtype.c (create_optional_field): New function.
5191         (adjust_field_rtx_def): Add the "block_sym" field for SYMBOL_REFs when
5192         SYMBOL_REF_IN_BLOCK_P is true.
5193         * target.h (output_anchor, use_blocks_for_constant_p): New hooks.
5194         (min_anchor_offset, max_anchor_offset): Likewise.
5195         (use_anchors_for_symbol_p): New hook.
5196         * toplev.c (compile_file): Call output_object_blocks.
5197         (target_supports_section_anchors_p): New function.
5198         (process_options): Check that -fsection-anchors is only used on
5199         targets that support it and when -funit-at-a-time is in effect.
5200         * tree-ssa-loop-ivopts.c (prepare_decl_rtl): Only create DECL_RTL
5201         if the decl doesn't have one.
5202         * dwarf2out.c: Remove instantiations of VEC(rtx,gc).
5203         * expr.c (emit_move_multi_word, emit_move_insn): Pass the result
5204         of force_const_mem through use_anchored_address.
5205         (expand_expr_constant): New function.
5206         (expand_expr_addr_expr_1): Call it.  Use the same modifier when
5207         calling expand_expr for INDIRECT_REF.
5208         (expand_expr_real_1): Pass DECL_RTL through use_anchored_address
5209         for all modifiers except EXPAND_INITIALIZER.  Use expand_expr_constant.
5210         * expr.h (use_anchored_address): Declare.
5211         * loop-unroll.c: Don't declare rtx vectors here.
5212         * explow.c: Include output.h.
5213         (validize_mem): Call use_anchored_address.
5214         (use_anchored_address): New function.
5215         * common.opt (-fsection-anchors): New switch.
5216         * varasm.c (object_block_htab, anchor_labelno): New variables.
5217         (hash_section, object_block_entry_eq, object_block_entry_hash)
5218         (use_object_blocks_p, get_block_for_section, create_block_symbol)
5219         (use_blocks_for_decl_p, change_symbol_section): New functions.
5220         (get_variable_section): New function, split out from assemble_variable.
5221         (make_decl_rtl): Create a block symbol if use_object_blocks_p and
5222         use_blocks_for_decl_p say so.  Use change_symbol_section if the
5223         symbol has already been created.
5224         (assemble_variable_contents): New function, split out from...
5225         (assemble_variable): ...here.  Don't output any code for
5226         block symbols; just pass them to place_block_symbol.
5227         Use get_variable_section and assemble_variable_contents.
5228         (get_constant_alignment, get_constant_section, get_constant_size): New
5229         functions, split from output_constant_def_contents.
5230         (build_constant_desc): Create a block symbol if use_object_blocks_p
5231         says so.  Or into SYMBOL_REF_FLAGS.
5232         (assemble_constant_contents): New function, split from...
5233         (output_constant_def_contents): ...here.  Don't output any code
5234         for block symbols; just pass them to place_section_symbol.
5235         Use get_constant_section and get_constant_alignment.
5236         (force_const_mem): Create a block symbol if use_object_blocks_p and
5237         use_blocks_for_constant_p say so.  Or into SYMBOL_REF_FLAGS.
5238         (output_constant_pool_1): Add an explicit alignment argument.
5239         Don't switch sections here.
5240         (output_constant_pool): Adjust call to output_constant_pool_1.
5241         Switch sections here instead.  Don't output anything for block symbols;
5242         just pass them to place_block_symbol.
5243         (init_varasm_once): Initialize object_block_htab.
5244         (default_encode_section_info): Keep the old SYMBOL_FLAG_IN_BLOCK.
5245         (default_asm_output_anchor, default_use_aenchors_for_symbol_p)
5246         (place_block_symbol, get_section_anchor, output_object_block)
5247         (output_object_block_htab, output_object_blocks): New functions.
5248         * target-def.h (TARGET_ASM_OUTPUT_ANCHOR): New macro.
5249         (TARGET_ASM_OUT): Include it.
5250         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): New macro.
5251         (TARGET_MIN_ANCHOR_OFFSET, TARGET_MAX_ANCHOR_OFFSET): New macros.
5252         (TARGET_USE_ANCHORS_FOR_SYMBOL_P): New macro.
5253         (TARGET_INITIALIZER): Include them.
5254         * rtl.c (rtl_check_failed_block_symbol): New function.
5255         * rtl.h: Include vec.h.  Declare heap and gc rtx vectors.
5256         (block_symbol, object_block): New structures.
5257         (rtx_def): Add a block_symbol field to the union.
5258         (BLOCK_SYMBOL_CHECK): New macro.
5259         (rtl_check_failed_block_symbol): Declare.
5260         (SYMBOL_FLAG_IN_BLOCK, SYMBOL_FLAG_ANCHOR): New SYMBOL_REF flags.
5261         (SYMBOL_REF_IN_BLOCK_P, SYMBOL_REF_ANCHOR_P): New predicates.
5262         (SYMBOL_FLAG_MACH_DEP_SHIFT): Bump by 2.
5263         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): New accessors.
5264         * output.h (output_section_symbols): Declare.
5265         (object_block): Name structure.
5266         (place_section_symbol, get_section_anchor, default_asm_output_anchor)
5267         (default_use_anchors_for_symbol_p): Declare.
5268         * Makefile.in (RTL_BASE_H): Add vec.h.
5269         (explow.o): Depend on output.h.
5270         * config/rs6000/rs6000.c (TARGET_MIN_ANCHOR_OFFSET): Override default.
5271         (TARGET_MAX_ANCHOR_OFFSET): Likewise.
5272         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Likewise.
5273         (rs6000_use_blocks_for_constant_p): New function.
5274
5275 2006-02-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
5276
5277         * doc/install.texi (hppa*-hp-hpux*): Update for 4.1.0.
5278
5279 2006-02-18  Andrew Pinski  <pinskia@physics.uc.edu>
5280
5281         PR tree-opt/25680
5282         * tree-ssa-ccp.c (ccp_fold): Handle store CCP of REALPART_EXPR and
5283         IMAGPART_EXPR.
5284
5285 2006-02-18  Diego Novillo  <dnovillo@redhat.com>
5286
5287         * tree-flow.h (struct var_ann_d): Rename field is_alias_tag to
5288         is_aliased.
5289         Update all users.
5290
5291 2006-02-18  Jakub Jelinek  <jakub@redhat.com>
5292
5293         PR middle-end/26334
5294         * stmt.c (decl_overlaps_hard_reg_set_p): Use DECL_HARD_REGISTER
5295         instead of DECL_REGISTER.
5296
5297 2006-02-18  Olivier Hainque  <hainque@adacore.com>
5298
5299         PR ada/13408
5300         * pa.h (WIDEST_HARDWARE_FP_SIZE): Define.
5301
5302 2006-02-18  Joseph S. Myers  <joseph@codesourcery.com>
5303
5304         PR target/24837
5305         * config.gcc: Define UCLIBC_DEFAULT to 0 or 1.
5306         * opth-gen.awk: Handle Var and InverseMask together.
5307         * config/linux.opt (muclibc, mglibc): Use Var(linux_uclibc).
5308         * config/linux.h: Use #if not #ifdef for testing UCLIBC_DEFAULT.
5309         (TARGET_C99_FUNCTIONS): Test OPTION_GLIBC not TARGET_GLIBC.
5310         (CHOOSE_DYNAMIC_LINKER): Give an error for -mglibc and -muclibc
5311         used together.
5312         (UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
5313         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
5314         * config/alpha/linux-elf.h (GLIBC_DYNAMIC_LINKER,
5315         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
5316         LINUX_DYNAMIC_LINKER): Define.
5317         (ELF_DYNAMIC_LINKER): Define to LINUX_DYNAMIC_LINKER.
5318         * config/alpha/linux.h (TARGET_C99_FUNCTIONS): Define to
5319         TARGET_GLIBC.
5320         * config/cris/linux.h (GLIBC_DYNAMIC_LINKER): Define.
5321         (CRIS_LINK_SUBTARGET_SPEC): Pass a -dynamic-linker option.
5322         * config/frv/linux.h (GLIBC_DYNAMIC_LINKER): Define.
5323         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
5324         (TARGET_C99_FUNCTIONS): Don't define.
5325         * config/i386/linux.h (DYNAMIC_LINKER): Rename to
5326         GLIBC_DYNAMIC_LINKER.
5327         (SUBTARGET_EXTRA_SPECS): Use LINUX_DYNAMIC_LINKER.
5328         * config/i386/linux64.h (GLIBC_DYNAMIC_LINKER32,
5329         GLIBC_DYNAMIC_LINKER64): Define.
5330         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
5331         LINUX_DYNAMIC_LINKER64.
5332         * config/ia64/linux.h (GLIBC_DYNAMIC_LINKER): Define.
5333         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
5334         * config/m32r/linux.h (GLIBC_DYNAMIC_LINKE): Define.
5335         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
5336         * config/m68k/linux.h (GLIBC_DYNAMIC_LINKER): Define.
5337         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
5338         * config/mips/linux64.h (GLIBC_DYNAMIC_LINKER32,
5339         GLIBC_DYNAMIC_LINKER64, GLIBC_DYNAMIC_LINKERN32,
5340         UCLIBC_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKERN32): Define.
5341         (LINK_SPEC): Use LINUX_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKER64
5342         and LINUX_DYNAMIC_LINKER32.
5343         * config/mn10300/linux.h (GLIBC_DYNAMIC_LINKER): Define.
5344         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
5345         * config/pa/pa-linux.h (GLIBC_DYNAMIC_LINKER): Define.
5346         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
5347         * config/rs6000/linux.h (TARGET_C99_FUNCTIONS): Define to
5348         TARGET_GLIBC.
5349         * config/rs6000/linux64.h (TARGET_C99_FUNCTIONS): Likewise.
5350         (GLIBC_DYNAMIC_LINKER32, GLIBC_DYNAMIC_LINKER64,
5351         UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
5352         CHOOSE_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
5353         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
5354         (LINK_OS_LINUX_SPEC32): Use LINUX_DYNAMIC_LINKER32.
5355         (LINK_OS_LINUX_SPEC64): Use LINUX_DYNAMIC_LINKER64.
5356         * config/rs6000/sysv4.h (GLIBC_DYNAMIC_LINKER,
5357         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
5358         LINUX_DYNAMIC_LINKER): Define.
5359         (LINK_OS_LINUX_SPEC): Use LINUX_DYNAMIC_LINKE.
5360         * config/s390/linux.h (GLIBC_DYNAMIC_LINKER32,
5361         GLIBC_DYNAMIC_LINKER64): Define.
5362         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
5363         LINUX_DYNAMIC_LINKER64.
5364         * config/sh/linux.h (GLIBC_DYNAMIC_LINKER): Define.
5365         (SUBTARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
5366         * config/sparc/linux.h (GLIBC_DYNAMIC_LINKER,
5367         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
5368         LINUX_DYNAMIC_LINKER): Define.
5369         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
5370         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
5371         * config/sparc/linux64.h (GLIBC_DYNAMIC_LINKER32,
5372         GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER32,
5373         UCLIBC_DYNAMIC_LINKER64, CHOOSE_DYNAMIC_LINKER,
5374         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
5375         (LINK_ARCH32_SPEC): Use LINUX_DYNAMIC_LINKER32.
5376         (LINK_ARCH64_SPEC, LINK_SPEC): Use LINUX_DYNAMIC_LINKER64.
5377         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
5378         * config/xtensa/linux.h (GLIBC_DYNAMIC_LINKER): Define.
5379         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
5380         * doc/invoke.texi (-muclibc): Remove caveat about supported
5381         targets.
5382
5383 2006-02-17  Grigory Zagorodnev <grigory_zagorodnev@linux.intel.com>
5384
5385         * doc/cpp.texi (__TIMESTAMP__): Document.
5386
5387 2006-02-17  Roger Sayle  <roger@eyesopen.com>
5388
5389         PR middle-end/25600
5390         * fold-const.c (fold_binary): Fold (X >> C) != 0 into X < 0 when
5391         C is one less than the width of X (and related transformations).
5392         * simplify-rtx.c (simplify_unary_operation_1): Transform
5393         (neg (lt x 0)) into either (ashiftrt X C) or (lshiftrt X C)
5394         depending on STORE_FLAG_VALUE, were C is one less then the
5395         width of X.
5396
5397 2006-02-17  Daniel Berlin  <dberlin@dberlin.org>
5398
5399         Fix PR tree-optimization/26341
5400         * tree-ssa-operands.c (add_virtual_operand): Remove assert
5401         about NAME_MEMORY_TAG's.
5402
5403 2006-02-17  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
5404
5405         PR target/26255
5406         * pa.md: Create separate HI and QI move patterns for 32-bit and 64-bit
5407         with hardware float support, and software float support.  Add fcpy
5408         alternative to hardware patterns.  Add alternatives to copy between
5409         general and floating-point registers to the 32-bit pattern.
5410         * pa.c (pa_secondary_reload): Don't abort if reload tries to find a
5411         secondary reload to load a QI or HI mode constant into a floating
5412         point register.
5413         * pa32-regs.h (VALID_FP_MODE_P): Allow QImode and HImode.
5414         * pa64-regs.h (VALID_FP_MODE_P): Likewise.
5415
5416 2006-02-17  Andrew Pinski  <pinskia@physics.uc.edu>
5417
5418         PR target/26272
5419         * config/rs6000/darwin.md (load_macho_picbase_si): Add
5420         pc to the pattern.
5421         (load_macho_picbase_di): Likewise.
5422
5423 2006-02-16  Jeff Law  <law@redhat.com>
5424
5425         * tree-vrp.c (set_value_range_to_nonnegative): New function.
5426         (vrp_expr_computes_nonnegative, ssa_name_nonnegative_p): Likewise.
5427         (ssa_name_nonzero_p): Likewise.
5428         (get_value_range): Return NULL if VRP is not running.
5429         (extract_range_from_expr): Fallback to tree_expr_XXX_p if
5430         VRP routines do not discover a range.
5431         (vrp_finalize): Clear VR_VALUE to indicate VRP is not running.
5432         * tree.h (ssa_name_nonzero_p, ssa_name_nonnegative_p): Prototype.
5433         * fold-const.c (tree_expr_nonzero_p): For SSA_NAMEs, query VRP.
5434         (tree_expr_nonnegative_p): Similarly.
5435         * tree-ssa-dom.c (nonzero_vars, nonzero_vars_stack): Remove.
5436         (restore_nonzero_vars_to_original_value): Remove.
5437         (unsafe_associative_fp_binop): Remove.
5438         (tree_ssa_dominator_optimize): Remove initialization and
5439         finalization of nonzero_vars and nonzero_vars_stack.
5440         (dom_opt_initialize_block): No longer push marker on
5441         nonzero_vars_stack.
5442         (dom_opt_finalize_block): No longer call
5443         restore_nonzero_vars_to_original_value.
5444         (record_equivalences_from_phis): No longer look for
5445         nonzero PHI arguments.
5446         (cprop_into_successor_phis): No longer propagate nonzero
5447         property into PHI arguments.  Lose unused argument.  Caller
5448         updated.
5449         (record_equivalences_from_stmt): No longer record nonzero
5450         values for SSA_NAMEs.
5451         (lookup_avail_expr): No longer use nonzero_vars.
5452
5453         * stor-layout.c (set_sizetype): Set TYPE_MAX_VALUE properly
5454         for sizetype when sizetype is unsigned.
5455
5456 2006-02-16  Denis Nagorny <denis_nagorny@linux.intel.com>
5457
5458         PR rtl-optimization/25603
5459         * reload.c (reg_inc_found_and_valid_p): New. Check REG_INC note.
5460         (regno_clobbered_p): Use it. Reusing SETS argument for REG_INC case.
5461         * reload1.c (choose_reload_regs): Added call of regno_clobbered_p
5462         with new meaning of SETS.
5463
5464 2006-02-16  Joseph S. Myers  <joseph@codesourcery.com>
5465
5466         PR target/20353
5467         PR target/24578
5468         PR target/24837
5469         * config/linux.opt: New file.
5470         * config/linux.h (CHOOSE_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER,
5471         LINUX_DYNAMIC_LINKER): Define.
5472         (TARGET_C99_FUNCTIONS): Define depending on TARGET_GLIBC.
5473         * config.gcc (*-*-linux*): Define extra_options.
5474         (*-*-*uclibc*): Define UCLIBC_DEFAULT.
5475         (arm*-*-linux-gnueabi): Change to arm*-*-linux-*eabi.
5476         * config/arm/linux-eabi.h (LINUX_TARGET_INTERPRETER): Change to
5477         GLIBC_DYNAMIC_LINKER.
5478         * config/arm/linux-elf.h (LINUX_TARGET_INTERPRETER): Likewise.
5479         (LINUX_TARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
5480         * config/mips/linux.h (GLIBC_DYNAMIC_LINKER): Define.
5481         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
5482         * doc/invoke.texi (GNU/Linux Options): New section.
5483
5484 2006-02-16  Eric Botcazou  <ebotcazou@libertysurf.fr>
5485
5486         * config/sparc/sparc.md (setjmp): Rewrite.
5487         (setjmp_32): Delete.
5488         (setjmp_64): Likewise.
5489
5490 2006-02-16  Daniel Berlin <dberlin@dberlin.org>
5491
5492         * tree-ssa-operands.c (access_can_touch_variable): Fix typo in
5493          previous change.
5494
5495 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
5496
5497         * loop-invariant.c (invariant_for_use, check_dependencies): Fail for
5498         read-write uses.
5499
5500 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
5501
5502         PR rtl-optimization/26296
5503         * Makefile.in (loop-invariant.c): Add except.h dependency.
5504         * loop-invariant.c: Include except.h.
5505         (find_invariant_insn): Ignore insns satisfying can_throw_internal.
5506
5507 2005-02-16  Paul Brook  <paul@codesourcery.com>
5508
5509         * reload1.c (emit_reload_insns): Invalidate dead input registers used
5510         for reloads.
5511
5512 2006-02-16  Bernd Schmidt  <bernd.schmidt@analog.com>
5513
5514         PR rtl-optimization/25636
5515         * local-alloc.c (update_equiv_regs): Lose a bogus rtx_equal_p test
5516         when deciding whether an insn is an initializing insn.
5517
5518 2006-02-15 Daniel Berlin  <dberlin@dberlin.org>
5519
5520         * tree.c (init_ttree): Add STRUCT_FIELD_TAG handling.
5521         (tree_code_size): Ditto.
5522         * tree.h (struct tree_memory_tag): Remove parent_var.
5523         (struct tree_struct_field_tag): New.
5524         (SFT_OFFSET): New.
5525         (SFT_SIZE): New.
5526         (union tree_node): Add sft member.
5527         * tree-ssa-alias.c (get_tmt_for): Don't handle TYPE_READONLY
5528         specially here.
5529         (create_sft): Add size and offset argument, set SFT_OFFSET and
5530         SFT_SIZE.
5531         (create_overlap_variables_for): Update for SFT_OFFSET/SFT_SIZE.
5532         * treestruct.def: Add TS_STRUCT_FIELD_TAG.
5533         * tree-flow-inline.h (get_subvar_at): Update for
5534         SFT_OFFSET/SFT_SIZE.
5535         (var_can_have_subvars): Ditto.
5536         (overlap_subvar): Ditto.
5537         * print-tree.c (print_node): Print out interesting things for
5538         SFT's.
5539         * tree-flow.h (struct subvar): Remove offset and size members.
5540         * tree-ssa-operands.c (get_expr_operands): Update for
5541         get_indirect_ref_operands changes.
5542         (get_indirect_ref_operands): Call add_virtual_operand instead of
5543         add_stmt_operand.  Only recurse on base var if requested.
5544         (access_can_touch_variable): New function.
5545         (add_stmt_operand): Split virtual operand handling into ...
5546         (add_virtual_operand): Here.  Add offset, size, and for_clobber
5547         arguments.  Prune alias sets.
5548         (add_call_clobber_ops): Call add_virtual_operand.
5549
5550 2006-02-15  Jakub Jelinek  <jakub@redhat.com>
5551
5552         PR middle-end/26300
5553         * combine.c (make_extraction): Bail out if ORIG_POS is negative.
5554
5555         * tree.h (struct tree_omp_clause): Use OMP_CLAUSE_CODE rather
5556         than TREE_CODE as index into omp_clause_num_ops array.
5557
5558 2006-02-15  Uttam Pawar  <uttamp@us.ibm.com>
5559
5560         PR rtl-optimization/26184
5561         * modulo-sched.c (generate_reg_moves): Free bitmap vector
5562         uses_of_defs.
5563         * modulo-sched.c (sms_schedule): Free g_arr pointer.
5564         * modulo-sched.c (sms_schedule_by_order): Free bitmap pointers
5565         must_precede, must_follow and tobe_scheduled.
5566
5567         PR other/26147
5568         * opts.c (common_handle_option): Free new_option pointer.
5569         * df-core.c (df_analyze): Free postorder pointer.
5570
5571 2006-02-15  Rafael Ávila de Espíndola <rafael.espindola@gmail.com>
5572
5573         * Makefile.in: Fix the examples about the use of stamps
5574
5575 2006-02-15  Michael Matz  <matz@suse.de>
5576
5577         PR middle-end/22275
5578
5579         * stor-layout.c (layout_decl): Zero-width bitfields aren't
5580         influenced by maximum_field_alignment or DECL_PACKED.
5581         (update_alignment_for_field): Ditto.
5582         (place_field): Ditto.
5583         * doc/extend.texi (<#pragma pack>, <Type Attributes>): Document
5584         this behaviour.
5585
5586 2006-02-15  Paolo Bonzini  <bonzini@gnu.org>
5587
5588         * cfg.c (dump_flow_info): Get dump flags as an additional parameter.
5589         (debug_flow_info): Pass it.
5590         * alias.c (rest_of_handle_cfg): Adjust calls to dump_flow_info.
5591         * bb-reorder.c (reorder_basic_blocks): Likewise.
5592         * cfgcleanup.c (rest_of_handle_jump2): Likewise.
5593         * cse.c (rest_of_handle_cse, rest_of_handle_cse2): Likewise.
5594         * flow.c (life_analysis, recompute_reg_usage): Likewise.
5595         * gcse.c (gcse_main, bypass_jumps): Likewise.
5596         * ifcvt.c (rest_of_handle_if_conversion): Likewise.
5597         * local-alloc.c (rest_of_handle_local_alloc): Likewise.
5598         * loop-init.c (rtl_loop_init, rtl_loop_done): Likewise.
5599         * profile.c (compute_branch_probabilities, branch_prob): Likewise.
5600         * rtl.h (dump_flow_info): Adjust prototype.
5601         * tracer.c (rest_of_handle_tracer, tracer): Likewise.
5602         * var-tracking.c (variable_tracking_main): Likewise.
5603         * passes.c (execute_todo): Obey TDF_BLOCKS for RTL.
5604         * tree-dump.c (enable_rtl_dump_file): Enable the details and blocks
5605         options.
5606
5607 2006-02-15  Marcin Dalecki <martin@dalecki.de>
5608
5609         * tree-ssa-dom.c (dom_thread_across_edge): fix tag expression
5610         construction.
5611
5612 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
5613
5614         PR tree-optimization/26209
5615         * tree-ssa-loop.c (pass_scev_cprop): Add TODO_cleanup_cfg.
5616         * tree-cfgcleanup.c (cleanup_control_flow): Remove dead
5617         eh edges.
5618         * tree-cfg.c (replace_uses_by): Do not alter cfg.
5619
5620 2006-02-14  Roger Sayle  <roger@eyesopen.com>
5621
5622         PR middle-end/23670
5623         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Optimize (X&Y)|Y into
5624         (X,Y) and the corresponding symmetry related transformations.
5625         (fold_binary) <BIT_AND_EXPR>: Likewise, optimize (X|Y)&Y into
5626         (X,Y) and its symmetry related transformations.
5627
5628 2006-02-14  Roger Sayle  <roger@eyesopen.com>
5629
5630         * dojump.c (do_compare_rtx_and_jump): Also handle multi-word GTU
5631         and GEU.
5632
5633 2006-02-14  Adam Nemet  <anemet@caviumnetworks.com>
5634
5635         * simplify-rtx.c (simplify_subreg): Combine SUBREG and TRUNCATE.
5636
5637 2006-02-14  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
5638
5639         PR bootstrap/26053
5640         * configure.ac (HAVE_COMDAT_GROUP): Don't assume non-GNU linkers
5641         support COMDAT group.
5642         * configure: Regenerate.
5643
5644 2006-02-14  Roger Sayle  <roger@eyesopen.com>
5645
5646         PR middle-end/26279
5647         PR middle-end/26280
5648         PR middle-end/26283
5649         * dojump.c (do_compare_rtx_and_jump): Handle multi-word LE.
5650
5651 2006-02-14  Daniel Berlin  <dberlin@dberlin.org>
5652
5653         Fix PR tree-optimization/26260
5654
5655         * doc/invoke.texi (max-fields-for-field-sensitive): Document
5656         param.
5657         * params.h (MAX_FIELDS_FOR_FIELD_SENSITIVE): New.
5658         * params.def (PARAM_MAX_FIELDS_FOR_FIELD_SENSITIVE): Ditto.
5659         * tree-ssa-structalias.c (create_variable_info_for): Use
5660         MAX_FIELDS_FOR_FIELD_SENSITIVE.
5661
5662 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
5663
5664         * doc/invoke.texi (-fprefetch-loop-arrays, -fprefetch-loop-arrays-rtl):
5665         Document.
5666         * tree-ssa-loop-niter.c (number_of_iterations_ne,
5667         number_of_iterations_lt, number_of_iterations_cond): Remember the shape
5668         of the ending condition.
5669         * tree-ssa-loop-manip.c: Include params.h.
5670         (build_if_stmt, can_unroll_loop_p, determine_exit_conditions,
5671         tree_unroll_loop): New functions.
5672         * tree-pass.h (pass_loop_prefetch): Declare.
5673         * loop.c (rest_of_handle_loop_optimize): Test for
5674         -fprefetch-loop-arrays-rtl.
5675         * tree-scalar-evolution.h (affine_iv): Moved to tree-flow.h.
5676         * timevar.def (TV_TREE_PREFETCH): New timevar.
5677         * tree-ssa-loop.c (tree_ssa_loop_prefetch, gate_tree_ssa_loop_prefetch,
5678         pass_loop_prefetch): New.
5679         * tree-cfgcleanup.c: Include tree-scalar-evolution.h.
5680         (cleanup_tree_cfg_loop): Call scev_reset.
5681         * common.opt (fprefetch-loop-arrays-rtl): Add.
5682         * tree-ssa-loop-prefetch.c: New file.
5683         * tree-outof-ssa.c (struct value_expr_d): Add expr_vars field.
5684         (new_temp_expr_table): Initialize expr_vars.
5685         (free_temp_expr_table): Cleanup expr_vars.
5686         (check_replaceable, find_replaceable_in_bb): Prevent accumulating
5687         expressions from being merged into one.
5688         * tree-flow.h (affine_iv): Moved from tree-scalar-evolution.h.
5689         (struct tree_niter_desc): Add control, bound and cmp fields.
5690         (tree_ssa_prefetch_arrays, can_unroll_loop_p, tree_unroll_loop):
5691         Declare.
5692         * Makefile.in (tree-ssa-loop-prefetch.o): Add.
5693         (tree-cfgcleanup.o): Add SCEV_H dependency.
5694         (tree-ssa-loop-manip.o): Add PARAMS_H dependency.
5695         * passes.c (init_optimization_passes): Add pass_loop_prefetch.
5696
5697 2006-02-14  Richard Guenther  <rguenther@suse.de>
5698
5699         PR tree-optimization/26258
5700         * tree-ssa-structalias.c (find_func_aliases): Handle aggregates
5701         in PHI argument processing.
5702
5703 2006-02-13  Adam Nemet  <anemet@caviumnetworks.com>
5704
5705         * simplify-rtx.c (simplify_unary_operation_1) <TRUNCATE>: Return
5706         new expression in the requested machine mode.
5707
5708 2006-02-13  Roger Sayle  <roger@eyesopen.com>
5709
5710         * optabs.c (expand_abs): Don't call do_jump_by_parts_greater_rtx
5711         directly, instead let do_compare_rtx_and_jump handle this for us.
5712         * expr.c (expand_expr_real_1): Likewise.
5713         * dojump.c (do_jump_by_parts_greater_rtx): Make static.  Move
5714         before do_jump_by_parts_greater.
5715         (do_jump_by_parts_greater): Move after do_jump_by_parts_greater_rtx.
5716         * expr.h (do_jump_by_parts_greater_rtx): Delete prototype.
5717
5718 2006-02-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
5719
5720         * pa/quadlib.c: Use defines instead of enum qfcmp_magic.
5721
5722 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
5723
5724         PR rtl-optimization/26235
5725         * loop-invariant.c (hash_invariant_expr_1): Handle 'i' and 'n' formats.
5726         (invariant_expr_equal_p): Handle 'i' and 'n' formats.  Fail on unknown
5727         format.
5728
5729 2006-02-13  Jeff Law  <law@redhat.com>
5730
5731         * tree-vrp.c (extract_range_from_binary_expr): Remove handling of
5732         TRUTH_XOR_EPR.
5733
5734 2006-02-13  Jakub Jelinek  <jakub@redhat.com>
5735
5736         PR middle-end/26092
5737         * gimplify.c (gimplify_call_expr): Don't call get_callee_fndecl
5738         twice if decl is a builtin.  When trying again, call get_callee_fndecl
5739         first to verify it is still a builtin.
5740
5741 2006-02-13  Geoffrey Keating  <geoffk@apple.com>
5742
5743         * dwarf2out.c (base_type_die): Don't add AT_name here.
5744         (subrange_type_die): Don't add AT_name here.
5745         (modified_type_die): Rearrange code flow.  Do add AT_name here.
5746
5747 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
5748
5749         PR rtl-optimization/26247
5750         PR rtl-optimization/26248
5751         * loop-invariant.c (may_assign_reg_p): Do not allow VOIDmode.
5752
5753 2006-02-13  Richard Sandiford  <richard@codesourcery.com>
5754
5755         * config/floatunditf.c: Use if __LDBL_MANT_DIG__ == 113.
5756         * config/fixtfdi.c: Likewise.
5757         * config/fixunstfdi.c: Likewise.
5758         * config/floatditf.c: Likewise.
5759
5760 2006-02-13  Roger Sayle  <roger@eyesopen.com>
5761
5762         PR middle-end/24427
5763         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Transform (X&C1)|C2
5764         into (X,C2) if C1 is a subset of the bits of C2.  Transform
5765         (X&C1)|C2 into X|C2 if C1|C2 == ~0.  Canonicalize (X&C1)|C2 as
5766         (X&(C1&~C2))|C2.
5767         <BIT_AND_EXPR>: Canonicalize (X|C1)&C2 as (X&C2)|(C1&C2).
5768
5769 2006-02-13  Josh Conner  <jconner@apple.com>
5770
5771         PR target/25376
5772         * varasm.c (function_section): Check for section name before
5773         calling select_section on targets that define
5774         USE_SELECT_SECTION_FOR_FUNCTIONS.  On other targets, use
5775         unlikely_text_section instead of hot_function_section if
5776         first_function_block_is_cold.
5777
5778 2006-02-13  J"orn Rennecke <joern.rennecke@st.com>
5779
5780         PR middle-end/25335
5781         * reload1.c (gen_reload): Also use find_replacement in UNARY_P case.
5782
5783 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
5784
5785         PR rtl-optimization/26222
5786         * function.c (assign_stack_temp_for_type): Do not reuse stack slots
5787         after tree->rtl expansion.
5788         * loop-invariant.c (move_invariant_reg): Use force_operand on rhs
5789         before passing it to emit_move_insn.
5790
5791 2006-02-12  Gabriel Dos Reis  <gdr@integrable-solutions.net>
5792
5793         * doc/invoke.texi (-Write-strings): Document that it is enabled by
5794         default.
5795         * c.opt (-Wwrite-strings): Declare variable warn_write_strings.
5796         Clarify documentation.
5797         * c-common.h (warn_write_strings): Remove.
5798         * c-common.c (warn_write_strings): Likewise.
5799         * c-opts.c (c_common_init_options): Enable -Wwrite-strings by
5800         default for C++.
5801
5802 2006-02-12  Roger Sayle  <roger@eyesopen.com>
5803
5804         PR middle-end/25724
5805         * dojump.c (do_jump): Call do_compare_rtx_and_jump.
5806         (do_jump_parts_zero_rtx): New function renamed from
5807         do_jump_parts_equality_rtx.  Made static.  Add a mode argument.
5808         (do_jump_parts_equality_rtx): New function split out from
5809         do_jump_parts_equality.  Old implementation renamed as above.
5810         Call do_jump_parts_zero_rtx if either operand is zero.
5811         (do_jump_parts_equality): Call do_jump_parts_equality_rtx to
5812         do all of the heavy lifting.
5813         (do_compare_rtx_and_jump): Handle multi-word comparisons by
5814         calling either do_jump_by_parts_greater_rtx or
5815         do_jump_by_parts_equality_rtx.
5816         * expr.h (do_jump_by_parts_equality_rtx): Remove prototype.
5817         * expmed.c (do_cmp_and_jump): Now multi-word optimization has
5818         moved to do_compare_rtx_and_jump, call it directly.
5819         * stmt.c (do_jump_if_equal): Remove static prototype.  Add a
5820         mode argument.  Call do_compare_rtx_and_jump.
5821         (emit_case_nodes): Update calls to do_jump_if_equal.
5822
5823 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
5824
5825         PR rtl-optimization/26225
5826         * loop-invariant.c (may_assign_reg_p): Do not allow BLKmode operands.
5827
5828 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
5829
5830         PR rtl-optimization/26232
5831         * loop-invariant.c (find_invariant_insn): Ignore insns that set CC0.
5832
5833 2006-02-11  Jason Merrill  <jason@redhat.com>
5834
5835         PR tree-opt/24365
5836         * tree-inline.c (declare_return_variable): Just don't use the
5837         modify target if it's a gimple complex reg and the return slot
5838         isn't.
5839
5840 2006-02-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
5841
5842         * doc/contrib.texi: Update my entry.
5843
5844 2006-02-10  Geoffrey Keating  <geoffk@apple.com>
5845
5846         * config/i386/darwin.h (DBX_REGISTER_NUMBER): Define.
5847
5848 2006-02-10  Diego Novillo  <dnovillo@redhat.com>
5849
5850         * tree-inline.c (estimate_num_insns_1): Make OpenMP directives
5851         expensive.
5852
5853 2006-02-10  Zdenek Dvorak <dvorakz@suse.cz>
5854
5855         * doc/invoke.texi (-floop-optimize2): Removed.
5856         * toplev.c (process_options): Remove handling of flag_loop_optimize2.
5857         * loop-init.c (gate_handle_loop2): Do not test flag_loop_optimize2.
5858         Test flag_branch_on_count_reg only if HAVE_doloop_end.
5859         * common.opt (floop-optimize2): Removed.
5860         (fmove-loop-invariants): Enabled by default.
5861
5862 2006-02-10  Sebastian Pop  <pop@cri.ensmp.fr>
5863
5864         * tree-if-conv.c (combine_blocks): Free the result of
5865         get_loop_exit_edges.
5866
5867 2006-02-10  Jeff Law  <law@redhat.com>
5868
5869         * fold-const.c (tree_expr_nonzero_p): Fix thinko.
5870
5871         PR tree-optimization/26213
5872         * tree-ssa-threadedge.c (simplify_control_stmt_condition): Do not
5873         loop trying to follow SSA_NAME_VALUE chains.
5874
5875 2006-02-10  Richard Guenther  <rguenther@suse.de>
5876
5877         * tree-dfa.c (get_ref_base_and_extent): When computing maxsize
5878         deal with structures that end in implicitly variable sized arrays.
5879
5880 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
5881
5882         PR rtl-optimization/24762
5883         * df-scan.c (df_bb_refs_record): Record correct registers defined on
5884         eh edges.
5885
5886 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
5887
5888         * tree-ssa-loop-ivopts.c (struct loop_data, loop_data): Removed.
5889         (struct ivopts_data): Add regs_used field.
5890         (tree_ssa_iv_optimize_init): Do not allocate aux fields for loops.
5891         (ivopts_global_cost_for_size, determine_set_costs): Use data->regs_used
5892         instead of loop_data->regs_used;
5893         (free_loop_data): Do not free aux fields for loops.
5894         (tree_ssa_iv_optimize): Do not pass loops to tree_ssa_iv_optimize_init
5895         and tree_ssa_iv_optimize_finalize.
5896
5897 2006-02-09  Kaz Kojima  <kkojima@gcc.gnu.org>
5898
5899         * config/sh/sh.h (FUNCTION_VALUE): Don't handle CHAR_TYPE.
5900
5901 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
5902
5903         PR target/26141
5904         * sh.c (sh_gimplify_va_arg_expr): Don't change the result type when
5905         computing the effective result type.
5906
5907 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
5908
5909         PR inline-asm/16194
5910         * tree.h (decl_overlaps_hard_reg_set_p) Don't declare.
5911         (tree_overlaps_hard_reg_set): Declare.
5912         * stmt.c (decl_overlaps_hard_reg_set_p): Now static.  Change return
5913         type and signature to match function type expected by walk_tree.
5914         (tree_overlaps_hard_reg_set): New function.
5915         (decl_conflicts_with_clobbers_p): Rename to:
5916         (tree_conflicts_with_clobbers_p).  Take HARD_REG_SET * argument.
5917         Use tree_overlaps_hard_reg_set.  Changed caller.
5918         * doc/tm.texi (TARGET_MD_ASM_CLOBBERS): Replace
5919         decl_overlaps_hard_reg_set_p with tree_overlaps_hard_reg_set.
5920         * cris.c (cris_md_asm_clobbers): Likewise.
5921
5922 2006-02-09  Bernd Schmidt  <bernd.schmidt@analog.com>
5923
5924         * reload1.c (emit_input_reload_insns): Delete code that tries to
5925         inherit using find_equiv_reg.
5926
5927 2006-02-09  Gabriel Dos Reis  <gdr@integrable-solutions.net>
5928
5929         * c-common.h (flag_const_strings): Don't declare.
5930         * c-common.c (flag_const_strings): Remove.
5931         * c.opt (fconst_strings): Remove.
5932         * c-opts.c (c_common_handle_option): Remove <OPT_fconst_strings>.
5933         <OPT_Wwrite_strings>: Don't set flag_const_strings.
5934         (c_common_init_options): Don't set flag_const_strings.
5935         * doc/invoke.texi (-fno-const-strings): Remove documentation.
5936
5937 2006-02-09  Richard Earnshaw  <richard.earnshaw@arm.com>
5938
5939         * arm.md (tlobits_cbranch): New pattern.
5940         * arm.h (arm_select_cc_mode): For thumb, only return CC_Nmode if
5941         testing a single bit.
5942
5943 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
5944
5945         PR tree-opt/26179
5946         * tree-ssa-pre.c (create_component_ref_by_pieces):
5947         Handle RETURN_DECL like VAR_DECL.
5948
5949 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
5950
5951         PR middle-end/26134
5952         * fold-const.c (fold_indirect_ref_1): Fold
5953         "*(foo *)&complexfoo" to "__real__ complexfoo"
5954         and "((foo*)&complexfoo)[1]" to "__imag__ complexfoo".
5955
5956 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
5957
5958         * tree-flow-inline.h (var_can_have_subvars):
5959         Volatile variables should not have subvariables.
5960
5961 2006-02-09  Diego Novillo  <dnovillo@redhat.com>
5962
5963         PR 26180
5964         * tree-vrp.c (vrp_int_const_binop): Detect overflow when
5965         multiplying unsigned values.
5966         Tidy comments.
5967
5968 2006-02-09  Eric Botcazou  <ebotcazou@libertysurf.fr>
5969
5970         * config/sparc/sparc.c (tls_call_delay): Fix oversight.
5971
5972 2006-02-08  Jason Merrill  <jason@redhat.com>
5973
5974         PR c++/25979
5975         * tree.def: Elaborate on difference from MODIFY_EXPR.
5976         * doc/c-tree.texi (INIT_EXPR): Likewise.
5977         * gimplify.c (internal_get_tmp_var): Use INIT_EXPR.
5978         (gimplify_decl_expr, gimplify_init_ctor_eval): Likewise.
5979         (gimplify_target_expr): Likewise.
5980         (gimplify_cond_expr): Remove target handling.
5981         (gimplify_modify_expr): Don't clobber INIT_EXPR code here.
5982         (gimplify_expr): Clobber it here.
5983         (gimplify_modify_expr_rhs): Push assignment into COND_EXPR here.
5984         Do return slot optimization if we have an INIT_EXPR.
5985
5986         PR tree-opt/24365
5987         * tree-inline.c (declare_return_variable): Also clear
5988         DECL_COMPLEX_GIMPLE_REG_P as needed in the modify_dest case.
5989
5990         PR c++/16405
5991         * gimplify.c (gimplify_modify_expr_rhs): Re-enable *& handling.
5992
5993         PR middle-end/22439
5994         * gimplify.c (gimplify_one_sizepos): Fix typo.
5995
5996 2006-02-08  Jeff Law  <law@redhat.com>
5997
5998         PR tree-optimization/21417
5999         * tree-ssa-threadedge.c (thread_across_edge): Reject threading
6000         across a backedge if the control statement at the end of the
6001         block is data dependent on other statements in the same block.
6002         (record_temporary_equivalences_from_stmts): Remove over-conservative
6003         test for threading across backedges.
6004
6005         * tree-ssa-dce.c (remove_dead_statement): When removing a dead
6006         control statement, handle all three special cases in the same
6007         manner as they all have the same desired solution.  No longer
6008         special case edge flag updating when the post dominator is
6009         the exit block.
6010
6011 2006-02-08  Roger Sayle  <roger@eyesopen.com>
6012
6013         * tree.def (CHAR_TYPE): Remove.
6014         * dbxout.c (dbxout_type): Delete dead handling of CHAR_TYPE.
6015         * dwarf2out.c (base_type_die, is_base_type): Likewise.
6016         (gen_type_die) <ARRAY_TYPE>: Remove handling of CHAR_TYPE arrays.
6017         (gen_string_type_die): Delete unreachable function.
6018
6019         * tree-pretty-print.c (dump_generic_node): Don't handle CHAR_TYPE.
6020         * tree.c (build_int_cst_wide, type_contains_placeholder_1,
6021         type_hash_eq, variably_modified_type_p, walk_type_fields): Likewise.
6022         * tree.h (NUMERICAL_TYPE_CHECK, INTEGRAL_TYPE_P): Likewise.
6023         * builtins.c (type_to_class): Likewise.
6024         * fold-const.c (fold_convert, build_range_check,
6025         merge_ranges): Likewise.
6026         * expr.c (count_type_elements): Likewise.
6027         * c-pretty-print.c (pp_c_type_specifier): Likewise.
6028         * stor-layout.c (layout_type): Likewise.
6029         * ipa-type-escape.c (type_to_consider): Likewise.
6030         * gimplify.c (omp_firstprivatize_type_sizes,
6031         gimplify_type_sizes): Likewise.
6032         * explow.c (promote_mode): Likewise.
6033         * tree-sra.c (is_sra_scalar_type): Likewise.
6034         * varasm.c (output_constant): Likewise.
6035         * tree-inline.c (remap_type_1): Likewise.
6036         * convert.c (convert_to_pointer, convert_to_real,
6037         convert_to_integer, convert_to_complex): Likewise.
6038
6039 2006-02-08  Daniel Berlin  <dberlin@dberlin.org>
6040
6041         * df-scan.c (df_def_record_1): A set destination may
6042         be a parallel regardless of mode.
6043
6044 2006-02-08  Roger Sayle  <roger@eyesopen.com>
6045
6046         PR target/22209
6047         * config/mips/mips.h (MIN_UNITS_PER_WORD): Don't define for libgcc.
6048         * config/mips/_tilib.c: Remove.
6049         * config/fixtfdi.c: New libgcc source file.
6050         * config/fixunstfdi.c: New source file.
6051         * config/floatditf.c: New source file.
6052         * config/floatunditf.c: New souce file.
6053         * config/mips/t-iris6 (LIB2FUNCS_EXTRA): Include the new source
6054         files above instead of config/mips/_tilib.c.
6055         * config/mips/t-linux64 (LIB2FUNCS_EXTRA): Likewise.
6056
6057 2006-02-08  Jeff Law  <law@redhat.com>
6058
6059         PR tree-optimization/26169
6060         * tree-vrp.c (execute_vrp): Perform any queued SSA updates before
6061         threading jumps.
6062
6063 2006-02-08  Zdenek Dvorak <dvorakz@suse.cz>
6064
6065         * df.h (DF_REG_SIZE): Return the length of the initialized
6066         part of the array.
6067
6068 2006-02-08  Nathan Sidwell  <nathan@codesourcery.com>
6069
6070         * gcc/config/m68k/lb1sf68.asm (__divsf3, __divdf3, __mulsf3,
6071         __muldf3): Return a correctly signed zero.
6072
6073 2006-02-08  Paolo Bonzini  <bonzini@gnu.org>
6074
6075         * passes.c (register_one_dump_file): Accept the current properties
6076         instead of pass number.  Adjust call to dump_register.  Remove
6077         duplicated code.
6078         (register_dump_files): Now a wrapper around...
6079         (register_dump_files_1): ... this one.  Do not modify the pass
6080         structure.
6081         (next_pass_1): Cosmetic fix.
6082         (execute_todo): Keep second parameter only.  Use curr_properties
6083         instead of fetching it from the pass structure.  Check and set
6084         last_verified.
6085         (execute_one_pass): Handle TODO_set_props.  Use curr_properties
6086         instead of fetching it from the pass structure.  Fix calls to
6087         execute_todo.  Update curr_properties and initialize .vcg RTL dump
6088         after running the pass.  Reset last_verified.
6089         * tree-dump.c (dump_files): Renumber consecutively.  Put .cgraph dump
6090         at the beginning.
6091         (FIRST_AUTO_NUMBERED_DUMP): New.
6092         (dump_register): Remove "num" parameter, assign it within the
6093         function.
6094         (get_dump_file_name): Modify template for dumps.
6095         * tree-dump.h (dump_register): Adjust prototype.
6096         * tree-pass.h (enum tree_dump_index): Move cgraph at the beginning.
6097         (PROP_trees): Add PROP_gimple_lomp.
6098         (TODO_set_props): New.
6099         * gimple-low.c (pass_lower_cf): Do not destroy PROP_gimple_lcf.
6100         * tree-eh.c (pass_lower_eh): Do not destroy PROP_gimple_leh.
6101         * cfgexpand.c (pass_expand): Destroy PROP_trees.
6102
6103 2006-02-08  Jakub Jelinek  <jakub@redhat.com>
6104
6105         * config.gcc (sparc-*-linux*): Add sparc/t-linux to tmake_file.
6106         (sparc64-*-linux*): Likewise.
6107         * config/sparc/t-linux64 (SHLIB_MAPFILES): Removed.
6108         * config/sparc/t-linux: New file.
6109         * config/sparc/libgcc-sparc-glibc.ver (__fixtfdi, __fixunstfdi,
6110         __floatditf): Export at GCC_LDBL_3.0 if -m32 -mlong-double-128.
6111         (__divtc3, __multc3, __powitf2): Export at GCC_LDBL_4.0.0 if
6112         -m32 -mlong-double-128.
6113
6114         * config.gcc (alpha*-*-linux*): Add alpha/t-linux to tmake_file.
6115         * config/alpha/t-linux: New file.
6116         * config/alpha/libgcc-alpha-ldbl.ver: New file.
6117
6118         * config/sparc/linux.h (TARGET_OS_CPP_BUILTINS): Define
6119         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128.
6120         (CPP_SUBTARGET_SPEC): Don't add -D__LONG_DOUBLE_128__ here.
6121         * config/sparc/linux64.h (TARGET_OS_CPP_BUILTINS): Define
6122         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128 and TARGET_ARCH32.
6123         (CPP_ARCH32_SPEC): Remove.
6124
6125 2006-02-07  Uttam Pawar  <uttamp@us.ibm.com>
6126
6127         PR tree-optimization/26145
6128         * tree-ssa-loop-unswitch.c (tree_unswitch_single_loop): Free
6129         bbs pointer.
6130
6131 2006-02-07  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
6132
6133         PR target/26109
6134         * pa.c (attr_length_indirect_call): Don't return length 8 for distances
6135         >= 240000 when generating code for SOM runtime.
6136         (output_indirect_call): Don't use "b,l" instruction for indirect calls
6137         to $$dyncall when generating code for SOM runtime..
6138
6139 2006-02-07  Dirk Mueller  <dmueller@suse.com>
6140
6141         PR c++/18150
6142         * doc/invoke.texi (-Wsequence-point): Update documentation
6143         that -Wsequence-point is implemented for C++ as well.
6144
6145 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
6146
6147         * config/sol26.h (CPP_SUBTARGET_SPEC): Accept -pthread.
6148         * config/sol2.h (CPP_SUBTARGET_SPEC): Likewise.
6149         (LIB_SPEC): Likewise.
6150         * doc/invoke.texi (SPARC options): Document -pthread.
6151
6152 2006-02-07  Geoffrey Keating  <geoffk@apple.com>
6153
6154         * config/i386/i386.c (ix86_delegitimize_address): Support Darwin
6155         PIC addresses.
6156
6157 2006-02-07  Roger Sayle  <roger@eyesopen.com>
6158
6159         * config/sparc/sparc.c (sparc_type_code): Don't handle CHAR_TYPE.
6160         Correct comment describing BOOLEAN_TYPE.
6161
6162 2006-02-07  Dirk Mueller  <dmueller@suse.com>
6163
6164         * c.opt: C++ frontend supports -Wdiv-by-zero.
6165         * c-opts.c (c_common_handle_option): Remove dead case.
6166
6167 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
6168
6169         * configure.ac (TLS assembler check): Do not enable TLS by
6170         default on SPARC/Solaris before version 10.
6171         * configure: Regenerate.
6172
6173 2006-02-07  David Edelsohn  <edelsohn@gnu.org>
6174
6175         * doc/invoke.texi (xl-compat): Document conversion and support
6176         routine names.
6177
6178 2006-02-07  Jeff Law  <law@redhat.com>
6179
6180         * tree-vrp.c (find_conditional_asserts): Update comments.
6181         (simplify_stmt_for_jump_threading): New.
6182         (identify_jump_threads, finalize_jump_threads): New.
6183         (vrp_finalize): Call identify_jump_threads.
6184         (execute_vrp): Call finalize_jump_threads.
6185         * tree-ssa-dom.c (struct opt_stats_d): Remove num_iterations field.
6186         (vrp_element, vrp_data, vrp_element_p): Remove.
6187         (vrp_hash_elt, vrp_variables_stack): Remove.
6188         (vrp_hash, vrp_eq, record_range): Remove.
6189         (simplify_cond_and_lookup_avail_expr): Remove.
6190         (extract_range_from_cond): Remove.
6191         (thread_across_edge): Relocated into tree-ssa-threadedge.c.
6192         (simplify_stmt_for_jump_threading): New.
6193         (dom_thread_across_edge): New wrapper.
6194         (tree_ssa_dominator_optimize): No longer initialize or
6195         finalize any of the VRP datastructures.  Remove iteration
6196         step and simplify as a result of removal of iteration step.
6197         (pass_dominator): Perform a cfg cleanup after DOM.
6198         (dom_opt_finalize_block): Use the new common routines
6199         for threading jumps.  Simplify stack management slightly.
6200         No longer need to unwind VRP state.
6201         (record_equivalences_from_incoming_edge): No longer record
6202         VRP information.
6203         (eliminate_redundant_computations): No longer call
6204         simplify_cond_and_lookup_avail_expr.
6205         * tree-flow.h (potentially_threadable_block): Prototype.
6206         (thread_across_edge): Likewise.
6207         * Makefile.in (OBJS-common):  Add tree-ssa-threadedge.o
6208         (tree-ssa-threadedge.o): Add dependencies.
6209         * tree-ssa-threadedge.c: New file.
6210         * passes.c (init_optimization_passes): Merge PHIs before
6211         calling VRP.  Run VRP again late in the SSA optimization pipeline.
6212
6213 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
6214
6215         * df-core.c (df_set_blocks): Do not dereference function pointers.
6216         (df_finish1): Likewise.
6217         (df_hybrid_search_forward): Likewise.
6218         (df_hybrid_search_backward): Likewise.
6219         (df_iterative_dataflow): Likewise.
6220         (df_analyze_problem): Likewise.
6221         (df_compact_blocks): Likewise.
6222         (df_dump): Likewise.
6223         * df-scan.c (df_rescan_blocks): Likewise.
6224         (df_record_entry_block_defs): Likewise.
6225
6226         * genconditions.c (write_conditions): Guard the definition of
6227         'insn_conditions' with the check on GCC version.
6228         (write_writer): Guard the traversal 'insn_conditions' with
6229         the check on GCC version.
6230
6231 2006-02-07  Richard Guenther  <rguenther@suse.de>
6232
6233         PR c++/26140
6234         Revert
6235         2006-01-30  Richard Guenther  <rguenther@suse.de>
6236         PR c++/23372
6237         * gimplify.c (gimplify_target_expr): Handle easy cases
6238         without creating a temporary.
6239
6240 2006-02-07  Pete Steinmetz  <steinmtz@us.ibm.com>
6241
6242         * sched-rgn.c (compute_dom_prob_ps, compute_trg_info): Eradicate
6243         use of float in probability computations.  Use edge probabilities
6244         in place of statically computed probabilities.
6245         (min_spec_prob): New static variable.
6246         (schedule_insns): Initialize it.
6247         (GET_SRC_PROB): Removed.
6248         * doc/invoke.texi (min-sched-prob): Renamed to min-spec-prob.
6249
6250 2006-02-07  Alexandre Oliva  <aoliva@redhat.com>
6251
6252         PR debug/24444
6253         * config/ia64/unwind-ia64.c: Revert last change.
6254         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Removed.
6255         (INCOMING_FRAME_SP_OFFSET): Define.
6256
6257 2006-02-06  Roger Sayle  <roger@eyesopen.com>
6258
6259         * config/ia64/ia64.c (hfa_element_mode): Don't handle CHAR_TYPE.
6260
6261 2006-02-07  Ben Elliston  <bje@au.ibm.com>
6262
6263         * config/i386/i386.c (ix86_scalar_mode_supported_p): New.
6264         (TARGET_SCALAR_MODE_SUPPORTED_P): Define hook.
6265         (classify_argument): Handle SDmode, DDmode, TDmode for 64-bit.
6266         (ix86_return_in_memory): Handle TDmode.
6267         (ix86_libcall_value): Handle SDmode, DDmode, TDmode.
6268         (ix86_value_regno): Return non-TDmode decimal float modes in %eax.
6269
6270 2006-02-06  Richard Sandiford  <richard@codesourcery.com>
6271
6272         * reorg.c (dbr_schedule): Use dump_file instead of file.
6273
6274 2006-02-06  Steve Ellcey  <sje@cup.hp.com>
6275
6276         PR target/25917
6277         * config/ia64/predicates.md (extr_len_operand): New predicate.
6278         * config/ia64/ia64.md (extv): Tighten constraints.
6279         (extzv): Ditto.
6280         (*tbit_and_2): Ditto.
6281         (*tbit_and_3): Ditto.
6282         (*tbit_or_2): Ditto.
6283         (*tbit_or_3): Ditto.
6284         (*bit_zero): Ditto.
6285         (*bit_one): Ditto.
6286
6287 2006-02-06  Andrew Pinski  <pinskia@physics.uc.edu>
6288
6289         PR target/23359
6290         * config/i386/i386.md (trap): Use ASM_SHORT instead of .word.
6291
6292 2006-02-06  Zdenek Dvorak <dvorakz@suse.cz>
6293
6294         * tree-vrp.c (execute_vrp): Do not pass dump argument to.
6295         loop_optimizer_init and loop_optimizer_finalize
6296         * tree-ssa-sink.c (execute_sink_code): Ditto.
6297         * tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
6298         * tree-ssa-loop.c (tree_loop_optimizer_init, tree_ssa_loop_init,
6299         tree_ssa_loop_done): Ditto.
6300         * tree-ssa-pre.c (init_pre, fini_pre): Ditto.
6301         * sched-ebb.c: Include output.h.
6302         (schedule_ebbs): Do not use dump argument.
6303         * value-prof.h (struct profile_hooks): Remove profile_dump_file.
6304         * loop.c (loop_dump_stream): Removed.
6305         (loop_optimize, rest_of_handle_loop_optimize): Do not use dump
6306         argument.
6307         (scan_loop, move_movables, find_and_verify_loops, mark_loop_jump,
6308         emit_prefetch_instructions, loop_bivs_find, loop_bivs_check,
6309         final_biv_value, loop_biv_eliminable_p, loop_givs_rescan,
6310         loop_iterations, strength_reduce, record_biv, record_giv,
6311         final_giv_value, check_final_value, check_ext_dependent_givs,
6312         combine_givs, check_dbra_loop, maybe_eliminate_biv, load_mems,
6313         try_copy_prop, loop_delete_insns, try_swap_copy_prop): Use
6314         dump_file instead of loop_dump_stream.
6315         * ddg.c (print_ddg_edge, print_ddg, vcg_print_ddg): Do not call
6316         argument dump_file.
6317         * reorg.c (dbr_schedule, rest_of_handle_delay_slots): Do not use
6318         dump argument.
6319         * flow.c (life_analysis, rest_of_handle_life): Ditto.
6320         * haifa-sched.c: Include output.h
6321         (schedule_insns, sched_init): Do not use dump argument.
6322         * mode-switching.c (optimize_mode_switching): Ditto.
6323         * modulo-sched.c (stats_file): Removed.
6324         (print_node_sched_params): Do not call argument dump_file.
6325         (sms_schedule_by_order, loop_canon_p, sms_schedule,
6326         rest_of_handle_sms): Do not use dump argument.  Use dump_file instead
6327         of stats_file.
6328         * cse.c (cse_main, rest_of_handle_cse, rest_of_handle_cse2): Do not
6329         use dump argument.
6330         * loop-init.c (loop_optimizer_init, loop_optimizer_finalize,
6331         rtl_loop_init, rtl_loop_done): Ditto.
6332         * global.c (global_alloc, rest_of_handle_global_alloc): Ditto.
6333         * predict.c (combine_predictions_for_bb, tree_estimate_probability):
6334         Ditto.
6335         * recog.c (peephole2_optimize, rest_of_handle_peephole2): Ditto.
6336         * lcm.c (pre_edge_lcm, pre_edge_rev_lcm): Ditto.
6337         * regmove.c (fixup_match_1, fixup_match_2, regmove_optimize,
6338         rest_of_handle_regmove, rest_of_handle_stack_adjustments): Ditto.
6339         * emit-rtl.c (renumber_insns): Ditto.
6340         * cfgexpand.c (add_reg_br_prob_note, expand_gimple_cond_expr,
6341         expand_gimple_basic_block, tree_expand_cfg): Ditto.
6342         * regclass.c (regclass): Ditto.
6343         * tree-outof-ssa.c (analyze_edges_for_bb, perform_edge_inserts,
6344         remove_ssa_form, rewrite_out_of_ssa): Ditto.
6345         * reg-stack.c (compensate_edge, compensate_edges, convert_regs_1,
6346         convert_regs_2, convert_regs, reg_to_stack, rest_of_handle_stack_regs):
6347         Ditto.
6348         * sched-rgn.c (schedule_insns, rest_of_handle_sched): Ditto.
6349         * local-alloc.c (rest_of_handle_local_alloc): Do not pass dump_file
6350         to regclass.
6351         * gcse.c (gcse_file, debug_stderr): Removed.
6352         (gcse_main, bypass_jumps, rest_of_handle_jump_bypass,
6353         rest_of_handle_gcse): Do not use dump argument.
6354         (cprop_jump, cprop_insn, do_local_cprop, cprop, find_implicit_sets,
6355         one_cprop_pass, bypass_block, compute_pre_data, insert_insn_end_bb,
6356         pre_edge_insert, pre_insert_copy_insn, pre_delete, one_pre_gcse_pass,
6357         compute_code_hoist_vbeinout, compute_code_hoist_data,
6358         one_code_hoisting_pass, trim_ld_motion_mems, update_ld_motion_stores,
6359         compute_store_table, build_store_vectors, insert_insn_start_bb,
6360         insert_store, remove_reachable_equiv_notes, replace_store_insn,
6361         store_motion): Use dump_file instead of gcse_file.
6362         * ipa-type-escape.c (type_escape_execute): Remove debugging comments.
6363         * profile.c (profile_dump_file): Removed.
6364         (branch_prob): Use dump_file instead of profile_dump_file.
6365         * ipa.c (cgraph_remove_unreachable_nodes): Do not call argument
6366         dump_file.
6367         * tree-ssa-copy.c (dump_copy_of): Ditto.
6368         * rtl-factoring.c (rtl_seqabstr, rest_of_rtl_seqabstr): Do not pass
6369         dump file to life_analysis.
6370         * bt-load.c (branch_target_load_optimize): Ditto.
6371         * cfgcleanup.c (rest_of_handle_jump2): Do not pass dump_file to
6372         renumber_insns.
6373         * rtl.h (cse_main, renumber_insns, schedule_insns, schedule_ebbs,
6374         regclass, dbr_schedule): Declaration changed.
6375         * sched-int.h (sched_init): Declaration changed.
6376         * tree-profile.c (tree_profile_dump_file): Removed.
6377         (tree_profile_hooks): Removed profile_dump_file hook.
6378         * rtl-profile (rtl_profile_dump_file): Removed.
6379         (rtl_profile_hooks): emoved profile_dump_file hook.
6380         * cfgloop.h (loop_optimizer_init, loop_optimizer_finalize): Declaration
6381         changed.
6382         * c-gimplify.c (c_genericize): Do not call local variable dump_file.
6383         * tree-cfg.c (build_tree_cfg): Ditto.
6384         * Makefile.in (haifa-sched.o, sched-ebb.o): Add output.h dependency.
6385         * basic-block.h (life_analysis, pre_edge_lcm, pre_edge_rev_lcm):
6386         Declaration changed.
6387         * config/sh/sh.c (sh_output_mi_thunk): Do not pass dump_file to
6388         life_analysis and schedule_insns.
6389         * config/m68hc11/m68hc11.c (m68hc11_reorg): Do not pass dump_file to
6390         life_analysis.
6391         * config/mt/mt.c (mt_machine_reorg): Do not pass dump_file to
6392         dbr_schedule.
6393         * config/mips/mips.c (mips_reorg): Ditto.
6394         * config/ia64/ia64.c (ia64_reorg): Do not pass dump_file to
6395         schedule_ebbs.
6396
6397 2006-02-06  Aldy Hernandez  <aldyh@redhat.com>
6398
6399         * config/s390/s390.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
6400         (s390_mangle_fundamental_type): New.
6401         * config/s390/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
6402         Define.
6403
6404         * config/alpha/alpha.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
6405         (alpha_mangle_fundamental_type): New.
6406         * config/alpha/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
6407         Define.
6408
6409         * config/sparc/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
6410         Define.
6411         * config/sparc/linux64.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
6412         Define.
6413         * config/sparc/sparc.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
6414         (sparc_mangle_fundamental_type): New.
6415
6416 2006-02-06  Jakub Jelinek  <jakub@redhat.com>
6417
6418         * config.gcc (s390-*-linux*): Add s390/t-linux to tmake_file.
6419         (s390x-*-linux*): Likewise.
6420         * config/s390/t-linux64 (SHLIB_MAPFILES): Removed.
6421         * config/s390/t-linux: New file.
6422
6423 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
6424
6425         * config/i386/sync.md (sync_add<mode>, sync_sub<mode>, sync_ior<mode>,
6426         sync_and<mode>, sync_xor<mode>): Operand 0 is in-out.
6427
6428 2006-02-06  Daniel Berlin  <dberlin@dberlin.org>
6429
6430         * tree-ssa-pre.c (bb_value_sets_t): Add antic_safe_loads.
6431         (ANTIC_SAFE_LOADS): New macro.
6432         (find_or_generate_expression): Add prototype.
6433         (set_contains_value): Allow null set for sake of not always having
6434         to allocate ANTIC_SAFE_LOADS.
6435         (phi_translate): Move placement of AGGREGATE_TYPE_P check.
6436         Allow COMPONENT_REF too.
6437         (valid_in_set): Allow COMPONENT_REF.
6438         Check ANTIC_SAFE_LOADS too.
6439         (compute_antic_aux): Print out ANTIC_SAFE_LOADS.
6440         (compute_rvuse_and_antic_safe): Add ANTIC_SAFE computation, and
6441         rename.
6442         (can_PRE_operation): Add COMPONENT_REF.
6443         (create_component_ref_by_pieces): New function.
6444         (create_expression_by_pieces): Use create_component_ref_by_pieces.
6445         (insert_aux): Move AGGREGATE_TYPE_P check here.
6446         (compute_avail): Set bb local stmt uids.
6447         (pass_pre): Use TODO_update_ssa_only_virtuals.
6448
6449 2006-02-06  Ben Elliston  <bje@au.ibm.com>
6450
6451         * configure.ac: Unconditionally disable decimal float by default.
6452         * configure: Regenerate.
6453
6454 2006-02-06  Ben Elliston  <bje@au.ibm.com>
6455
6456         * read-rtl.c (read_name): Terminate reading on EOF.
6457
6458 2006-02-06  Ben Elliston  <bje@au.ibm.com>
6459
6460         * dfp.c (decimal_real_arithmetic): Change second argument type
6461         from int to enum tree_code. Do not always return true, but now
6462         return result of any call to decimal_do helper functions.
6463         * dfp.h (decimal_real_arithmetic): Update prototype.
6464
6465 2006-02-05  Eric Botcazou  <ebotcazou@libertysurf.fr>
6466
6467         * config/sparc/sol2-bi.h (SPARC_DEFAULT_CMODEL): Set to CM_MEDMID.
6468
6469 2006-02-05  Andrew Pinski  <pinskia@physics.uc.edu>
6470
6471         PR tree-opt/25251
6472         * tree-cfg.c (cleanup_dead_labels): Also don't remove
6473         forced labels.
6474
6475 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
6476
6477         * tree-vrp.c (cfg_loops): Removed.
6478         (adjust_range_with_scev, vrp_visit_assignment, execute_vrp):
6479         Use current_loops instead of cfg_loops.  Pass flags to
6480         loop_optimizer_init.
6481         * cfgloopmanip.c (fix_loop_structure): Update only available
6482         information.
6483         * tree-ssa-loop-ch.c (copy_loop_headers): Pass flags to
6484         loop_optimizer_init.
6485         * modulo-sched.c (build_loops_structure): Removed.
6486         (sms_schedule): Use loop_optimizer_init.
6487         * loop-init.c (loop_optimizer_init): Use flags to determine
6488         which properties of loops to prepare.
6489         (rtl_loop_init): Pass flags to loop_optimizer_init.
6490         * tree-ssa-sink.c (execute_sink_code): Ditto.
6491         * tree-ssa-loop.c (tree_loop_optimizer_init): Ditto.
6492         * tree-ssa-pre.c (init_pre): Ditto.
6493         * cfgloop.h (LOOPS_NORMAL): New.
6494         (loop_optimizer_init): Declaration changed.
6495
6496 2006-02-05  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
6497
6498         * pa/x-ada-hpux10, pa/t-pa-hpux10, pa/t-pa-hpux11: New files.
6499         * config.gcc (hppa[12]*-*-hpux10*): Use pa/t-pa-hpux10 instead of
6500         pa/t-pa.
6501         * config.gcc (hppa[12]*-*-hpux11*): Use pa/t-pa-hpux11 instead of
6502         pa/t-pa.
6503         * config.host (hppa*-*-hpux10*): Use pa/x-ada-hpux10 instead of
6504         pa/x-ada.
6505         * pa/t-pa-hpux: Add lib2funcs.asm and quadlib.c rules.
6506         * pa/t-pa64: Delete quadlib.c rule.
6507         * pa/x-ada: Revert last change.
6508         * pa/t-pa: Revert last change.  Delete quadlib.c rule.
6509
6510 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
6511
6512         PR rtl-optimization/26087
6513         * rtlanal.c (canonicalize_condition): Do not cross basic block
6514         boundaries.
6515
6516 2006-02-04  Alexandre Oliva  <aoliva@redhat.com>
6517
6518         PR debug/24444
6519         * config/ia64/ia64.c: Include debug.h.
6520         (MAX_ARTIFICIAL_LABEL_BYTES): New.
6521         (ia64_label_after_insn, ia64_dwarf2out_def_steady_cfa): New.
6522         (IA64_CHANGE_CFA_IN_EPILOGUE): Define to 0.
6523         (process_epilogue, process_set, process_for_unwind_directive):
6524         Output unwind info only if requested.  Add CFA info if requested.
6525         Add new arguments as needed.  Adjust callers.
6526         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Override
6527         incorrect default.
6528         (DWARF2_FRAME_INFO): Define to zero.
6529         * config/ia64/unwind-ia64.c: Remove code that compensated for
6530         the CFA offset error fixed above.
6531         * config/ia64/t-ia64 (ia64.o): Depend on debug.h.
6532         * dwarf2out.c (DWARF2_FRAME_INFO): Define default.
6533         (dwarf2out_do_frame): Require nonzero DWARF2_UNWIND_INFO for
6534         -funwind-tables and -fexceptions to enable frame info.
6535         (dwarf2out_frame_init): Define initial CFA even if
6536         DWARF2_UNWIND_INFO is disabled.  Call initial_return_save if
6537         DWARF2_UNWIND_INFO is nonzero, not just defined.
6538         (dwarf2out_frame_finish): Output non-EH call frame info only
6539         if DWARF2_FRAME_INFO is nonzero.
6540         (convert_cfa_to_loc_list,
6541         compute_frame_pointer_to_cfa_displacement): Define even if
6542         unwind info is not supported.
6543         (gen_subprogram_die): Use the above unconditionally.  Remove
6544         legacy alternate code.
6545         * toplev.c (compile_file): Compile in call to
6546         dwarf2out_frame_finish if DWARF2_DEBUGGING_INFO is defined.
6547         (lang_dependent_init): Ditto for dwarf2out_frame_init.
6548
6549 2006-02-04  David Edelsohn  <edelsohn@gnu.org>
6550             Jakub Jelinek  <jakub@redhat.com>
6551
6552         * config/rs6000/rs6000.c (rs6000_mangle_fundamental_type): Mangle
6553         IBM extended float format long double as "g" on powerpc*-linux.
6554
6555 2006-02-03  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
6556
6557         PR target/25926
6558         * pa/x-ada (X_ADA_CFLAGS): Define _X_HPUX10 on HP-UX 10.
6559         * pa/t-pa (TARGET_LIBGCC2_CFLAGS): Define _T_HPUX10 on HP-UX 10.
6560
6561 2006-02-03  Jason Merrill  <jason@redhat.com>
6562
6563         PR c++/25979
6564         * gimplify.c (gimplify_modify_expr_rhs): Disable *& optimization for now.
6565
6566         PR middle-end/25977
6567         * gimplify.c (gimplify_modify_expr_rhs): It's not always safe to do RVO
6568         on the return slot if it's an NRV.
6569
6570 2006-02-03  Zdenek Dvorak <dvorakz@suse.cz>
6571
6572         * tree-ssa-loop-ivopts.c (enum use_type): Remove USE_OUTER.
6573         (dump_use, add_derived_ivs_candidates, determine_use_iv_cost,
6574         rewrite_use): Do not handle USE_OUTER.
6575         (find_interesting_uses_outer_or_nonlin, find_interesting_uses_outer,
6576         add_iv_outer_candidates, may_replace_final_value,
6577         determine_use_iv_cost_outer, rewrite_use_outer): Removed.
6578         (find_interesting_uses_op): Functionality of
6579         find_interesting_uses_outer_or_nonlin moved here.
6580         (find_interesting_uses_outside): Use find_interesting_uses_op.
6581
6582 2006-02-03  Alan Modra  <amodra@bigpond.net.au>
6583
6584         PR target/25960
6585         * config/rs6000/darwin-ldouble.c (__gcc_qadd): Preserve -0.0 result.
6586
6587 2006-02-03  Andreas Krebbel  <krebbel1@de.ibm.com>
6588             Ulrich Weigand  <uweigand@de.ibm.com>
6589
6590         PR target/25864
6591         * config/s390/2084.md ("x_fsimptf", "x_fmultf", "x_fdivtf",
6592         "x_floadtf", "x_ftrunctf", "x_ftruncdf"): New insn reservations.
6593         * config/s390/fixdfdi.h (__fixunstfdi, __fixtfdi): New functions.
6594         * config/s390/s390.c (struct processor_costs): Add mxbr, sqxbr, dxbr
6595         and dxr fields.
6596         (z900_cost, z990_cost, z9_109_cost): Values for the new fields added.
6597         (s390_rtx_costs): Use the new fields to calculate rtx costs.
6598         (s390_secondary_input_reload_class, s390_secondary_output_reload_class):
6599         Define secondary reloads for TFmode moves.
6600         (constant_modes): Add TFmode.
6601         (NR_C_MODES): Set to 8.
6602         * config/s390/s390.h (TARGET_CPU_CPP_BUILTINS): Add __LONG_DOUBLE_128__
6603         builtin define.
6604         (LONG_DOUBLE_TYPE_SIZE): Set to 128 or 64.
6605         (LIBGCC2_LONG_DOUBLE_TYPE_SIZE, WIDEST_HARDWARE_FP_SIZE): Define.
6606         (HARD_REGNO_NREGS, HARD_REGNO_MODE_OK, CLASS_MAX_NREGS,
6607         CANNOT_CHANGE_MODE_CLASS): Consider TFmode.
6608         * config/s390/s390.md ("type" attribute): Add fsimptf, floadtf, fmultf,
6609         fdivtf, fsqrttf, ftrunctf, ftruncdf as possible values.
6610         (FPR mode macro): Add TFmode.
6611         (DSF mode macro): New.
6612         (<de>, <dee> mode attributes): Removed.
6613         (<xde>, <xdee>, <RRe>, <RXe>, <Rf> mode attributes): New.
6614         ("*cmp<mode>_ccs_0", "*cmp<mode>_ccs_0_ibm", "*cmp<mode>_ccs",
6615         "*cmp<mode>_ccs_ibm", "fix_trunc<FPR:mode><GPR:mode>2_ieee",
6616         "floatdi<mode>2", "floatsi<mode>2_ieee", "*add<mode>3",
6617         "*add<mode>3_cc", "*add<mode>3_cconly", "*add<mode>3_ibm",
6618         "*sub<mode>3", "*sub<mode>3_cc", "*sub<mode>3_cconly",
6619         "*sub<mode>3_ibm", "*mul<mode>3_ibm", "*fmadd<mode>", "*fmsub<mode>",
6620         "*div<mode>3", "*div<mode>3_ibm", "*neg<mode>2_cc",
6621         "*neg<mode>2_cconly", "*neg<mode>2", "*neg<mode>2_ibm",
6622         "*abs<mode>2_cc", "*abs<mode>2_cconly", "*abs<mode>2",
6623         "*abs<mode>2_ibm", "*negabs<mode>2_cc", "*negabs<mode>2_cconly",
6624         "*negabs<mode>2", "sqrt<mode>2"):
6625         Changed <de> to <xde>. R constraint replaced by <Rf>.
6626         ("*mul<mode>3"): Changed <dee> to <xdee>. R constraint replaced by
6627         <Rf>.
6628         ("fix_trunc<FPR:mode>di2"): 'FPR:' removed.
6629         ("*fmadd<mode>", "*fmsub<mode>"): FPR mode replaced by DSF.
6630         ("*movtf_64", "*movtf_31"): New insn definitions followed by 5
6631         splitters.
6632         ("movtf", "reload_outtf", "reload_intf", "trunctfdf2", "trunctfsf2",
6633         "extenddftf2", "extendsftf2"): New expanders.
6634         ("*trunctfdf2_ieee", "*trunctfdf2_ibm", "*trunctfsf2_ieee",
6635         "*trunctfsf2_ibm", "*extenddftf2_ieee", "*extenddftf2_ibm",
6636         "*extendsftf2_ieee", "*extendsftf2_ibm"): New insn patterns.
6637         * config/s390/s390.opt (mlong-double-128, mlong-double-64):
6638         New options.
6639         * config/s390/t-crtstuff (TARGET_LIBGCC2_CFLAGS): Macro defined.
6640         * config/s390/libgcc-glibc.ver (__divtc3, __multc3, __powitf2,
6641         __fixtfti, __fixunstfti, __floattitf, __fixtfdi, __fixunstfdi,
6642         __floatditf): Add a GCC_4.1.0 symbol version tag.
6643         * doc/invoke.texi (-mlong-double-128, -mlong-double-64): Document
6644         the new options.
6645
6646 2006-02-02  Andrew Pinski  <pinskia@physics.uc.edu>
6647
6648         PR target/25377
6649         * config/i386/i386.c (ix86_function_ok_for_sibcall):
6650         Use targetm.binds_local_p instead of TREE_PUBLIC.
6651
6652 2006-02-02  Roger Sayle  <roger@eyesopen.com>
6653
6654         * tree.h (TYPE_STRING_FLAG): Document that this field may be used
6655         on INTEGER_TYPEs to indicate that it denotes a character type.
6656         * tree.c (build_common_tree_nodes): Set TYPE_STRING_FLAG on
6657         signed_char_type_node, unsigned_char_type_node and char_type_node.
6658         * dwarf2out.c (base_type_die): Treat CHAR_TYPE identically to
6659         INTEGER_TYPE.  Use TYPE_STRING_FLAG to decide whether to emit
6660         a DW_ATE_[un]signed_char instead of a DW_ATE_[un]signed.
6661
6662 2006-02-02  Zdenek Dvorak <dvorakz@suse.cz>
6663             Daniel Berlin  <dberlin@dberlin.org>
6664
6665         * tree-tailcall.c (arg_needs_copy_p): New function.
6666         (eliminate_tail_call): Use arg_needs_copy_p.
6667         (tree_optimize_tail_calls_1): Ditto. Also call add_virtual_phis.
6668         (add_virtual_phis): New function.
6669
6670 2006-02-02  Jakub Jelinek  <jakub@redhat.com>
6671
6672         * config/sparc/sparc.c (sparc_output_scratch_registers): Use
6673         #ignore instead of #scratch for %g7 .register directive.
6674
6675 2006-02-02  Andreas Tobler  <a.tobler@schweiz.ch>
6676
6677         * config/sparc/freebsd.h (ENDFILE_SPEC): Add space to separate
6678         object files.
6679
6680 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
6681
6682         * flow.c (calculate_global_regs_live): Assert that there aren't any
6683         EDGE_FAKE edges.
6684
6685 2006-02-02  Paolo Bonzini  <bonzini@gnu.org>
6686
6687         * tree-flow-inline.h (bsi_after_labels): Rewrite, return
6688         what its name says.
6689         * lambda-code.c (perfect_nestify): Use bsi_insert_before on
6690         bsi_after_labels iterator.
6691         * tree-if-conv.c (find_phi_replacement_condition,
6692         replace_phi_with_cond_modify_expr): Likewise.
6693         * tree-scalar-evolution.c (scev_const_prop): Likewise.
6694         * tree-ssa-loop-ivopts.c (compute_phi_arg_on_exit): Likewise.
6695
6696 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
6697
6698         * tree-inline.c (copy_tree_r): Also copy OMP_CLAUSE nodes.
6699
6700 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
6701
6702         PR 25990
6703         * tree-cfg.c (move_block_to_fn): Clear out the basic block
6704         array after growing it.
6705
6706 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
6707
6708         PR middle-end/24901
6709         * fold-const.c (fold_checksum_tree): Change type of buf.
6710
6711 2006-02-01  Bernd Schmidt  <bernd.schmidt@analog.com>
6712
6713         * reload.c (push_secondary_reload): Initialize t_icode.
6714
6715 2006-02-01  Jakub Jelinek  <jakub@redhat.com>
6716
6717         * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): For
6718         -msoft-float -mlong-double-128 only issue a warning, but don't
6719         swich to DFmode long double.
6720
6721 2006-02-01  Hans-Peter Nilsson  <hp@axis.com>
6722
6723         * cse.c (fold_rtx) <case RTX_COMM_COMPARE, RTX_COMPARE>: When arg1
6724         has a constant equivalent, iterate over equivalents for arg0,
6725         calling simplify_relational_operation and if there's a result
6726         cheaper than X, apply fold_rtx and return the result.
6727
6728 2006-02-01  Jan Hubicka  <jh@suse.cz>
6729
6730         * opts.c (no_unit_at_a_time_default): New global variable.
6731         (decode_options): Use it.
6732         * opts.h (no_unit_at_a_time_default): Declare.
6733
6734 2006-02-01  Paul Brook  <paul@codesourcery.com>
6735
6736         * function.c (assign_parm_setup_reg): Use function argument promotion
6737         rules.
6738         * expr.c (expand_expr_real_1): Use function argument promotion rules
6739         for PARM_DECLs.
6740
6741 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
6742
6743         * gcc.c (process_command): Change j to 'unsigned int'.
6744
6745 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
6746
6747         PR middle-end/26001
6748         * expr.c (expand_expr_real_1) <case ARRAY_REF>:
6749         Use the corrected index for the character
6750         out of the string constant.
6751
6752 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
6753
6754         * mode-switching.c (optimize_mode_switching): Fix size
6755         allocated for bb_info[n_entities].
6756
6757 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
6758
6759         * gcc.c (main): Correct type that is allocated for
6760         explicit_link_files.
6761
6762 2006-01-31  Jakub Jelinek  <jakub@redhat.com>
6763
6764         * config/s390/s390.c (init_alignment_context): Set
6765         ALIAS_SET_MEMORY_BARRIER on the MEM.
6766         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): Likewise.
6767
6768 2006-01-31  Uttam Pawar  <uttamp@us.ibm.com>
6769
6770         PR middle-end/25933
6771         * loop-unroll.c (unroll_loop_runtime_iterations): Free
6772         dom_bbs pointer.
6773         * tree-ssa-live.c (type_var_init): Allocate bitmap after
6774         call to tpa_init.
6775
6776 2006-01-31  Marcin Dalecki  <martin@dalecki.de>
6777
6778         * tree-vrp.c: Use XNEW/XCNEW allocation wrappers.
6779         * regrename.c: Ditto.
6780         * tree-ssa-loop-im.c: Ditto.
6781         * tree-dump.c: Ditto.
6782         * tree-complex.c: Ditto.
6783         * genrecog.c: Ditto.
6784         * tree-ssa-threadupdate.c: Ditto.
6785         * tracer.c: Ditto.
6786         * java/class.c: Ditto.
6787         * java/jcf-parse.c: Ditto.
6788         * java/resource.c: Ditto.
6789         * java/except.c: Ditto.
6790         * java/jvspec.c: Ditto.
6791         * java/jcf-write.c: Ditto.
6792         * java/jcf-path.c: Ditto.
6793         * java/gjavah.c: Ditto.
6794         * java/zextract.c: Ditto.
6795         * java/jcf-io.c: Ditto.
6796         * java/jcf.h: Ditto.
6797         * java/buffer.c: Ditto.
6798         * java/lang.c: Ditto.
6799         * java/parse-scan.y: Ditto.
6800         * java/lex.c: Ditto.
6801         * java/lex.h: Ditto.
6802         * cfgloopmanip.c: Ditto.
6803         * postreload-gcse.c: Ditto.
6804         * tree-ssa-loop-manip.c: Ditto.
6805         * postreload.c: Ditto.
6806         * tree-ssa-loop-ch.c: Ditto.
6807         * loop.c: Ditto.
6808         * ipa-cp.c: Ditto.
6809         * cppspec.c: Ditto.
6810         * diagnostic.c: Ditto.
6811         * final.c: Ditto.
6812         * genoutput.c: Ditto.
6813         * gcc.c: Ditto.
6814         * cfghooks.c: Ditto.
6815         * cfgloopanal.c: Ditto.
6816         * objc/objc-act.c: Ditto.
6817         * gcov.c: Ditto.
6818         * genextract.c: Ditto.
6819         * genautomata.c: Ditto.
6820         * pretty-print.c: Ditto.
6821         * genemit.c: Ditto.
6822         * cgraphunit.c: Ditto.
6823         * flow.c: Ditto.
6824         * df-scan.c: Ditto.
6825         * haifa-sched.c: Ditto.
6826         * dominance.c: Ditto.
6827         * dbxout.c: Ditto.
6828         * tree-ssa-loop-ivopts.c: Ditto.
6829         * df-core.c: Ditto.
6830         * mode-switching.c: Ditto.
6831         * modulo-sched.c: Ditto.
6832         * graph.c: Ditto.
6833         * ipa-pure-const.c: Ditto.
6834         * cse.c: Ditto.
6835         * fix-header.c: Ditto.
6836         * web.c: Ditto.
6837         * tree-stdarg.c: Ditto.
6838         * ipa-utils.c: Ditto.
6839         * loop-init.c: Ditto.
6840         * ipa-inline.c: Ditto.
6841         * cfganal.c: Ditto.
6842         * global.c: Ditto.
6843         * alloc-pool.c: Ditto.
6844         * dwarf2out.c: Ditto.
6845         * opts.c: Ditto.
6846         * genattrtab.c: Ditto.
6847         * tree-ssa-loop-ivcanon.c: Ditto.
6848         * predict.c: Ditto.
6849         * timevar.c: Ditto.
6850         * lcm.c: Ditto.
6851         * fortran/gfortranspec.c: Ditto.
6852         * regmove.c: Ditto.
6853         * local-alloc.c: Ditto.
6854         * langhooks.c: Ditto.
6855         * function.c: Ditto.
6856         * tree-vectorizer.c: Ditto.
6857         * gcse.c: Ditto.
6858         * ipa-type-escape.c: Ditto.
6859         * alias.c: Ditto.
6860         * tree-if-conv.c: Ditto.
6861         * profile.c: Ditto.
6862         * ipa.c: Ditto.
6863         * tree-data-ref.c: Ditto.
6864         * loop-unroll.c: Ditto.
6865         * treelang/treetree.c: Ditto.
6866         * calls.c: Ditto.
6867         * bt-load.c: Ditto.
6868         * ggc-common.c: Ditto.
6869         * except.c: Ditto.
6870         * coverage.c: Ditto.
6871         * cselib.c: Ditto.
6872         * tree-cfgcleanup.c: Ditto.
6873         * tree-ssa-pre.c: Ditto.
6874         * cfgcleanup.c: Ditto.
6875         * loop-invariant.c: Ditto.
6876         * loop-iv.c: Ditto.
6877         * ipa-prop.c: Ditto.
6878         * print-tree.c: Ditto.
6879         * conflict.c: Ditto.
6880         * ggc-page.c: Ditto.
6881         * sched-deps.c: Ditto.
6882         * regclass.c: Ditto.
6883         * tree-object-size.c: Ditto.
6884         * combine.c: Ditto.
6885         * bb-reorder.c: Ditto.
6886         * resource.c: Ditto.
6887         * var-tracking.c: Ditto.
6888         * cfgloop.c: Ditto.
6889         * df-problems.c: Ditto.
6890         * reg-stack.c: Ditto.
6891         * tlink.c: Ditto.
6892         * gccspec.c: Ditto.
6893         * sched-rgn.c: Ditto.
6894         * tree-ssa-structalias.c: Ditto.
6895         * tree-ssa-reassoc.c: Ditto.
6896         * config/darwin-c.c: Ditto.
6897         * config/darwin.c: Ditto.
6898         * config/arm/arm.c: Ditto.
6899         * cfgrtl.c: Ditto.
6900         * collect2.c: Ditto.
6901         * reload1.c: Ditto.
6902
6903 2006-01-31  Nicolas Pitre  <nico@cam.org>
6904
6905         * arm.md (smaxsi3): Make aware of smax_m1.
6906         (smax_m1): New.
6907
6908 2006-01-31  Nathan Sidwell  <nathan@codesourcery.com>
6909
6910         * gcc/config/m68k/lb1sf68.asm: Use moveq to load small constants.
6911
6912 2006-01-31  Richard Guenther  <rguenther@suse.de>
6913
6914         * doc/invoke.texi (-msselibm): Document.
6915         * target.h (expand_library_builtin): New target hook.
6916         * builtins.c (expand_builtin): Use expand_library_builtin.
6917         (default_expand_library_builtin): New function.
6918         * gcc.c (LINK_GCC_MATH_SPEC): Define.
6919         (LINK_COMMAND_SPEC): Handle %(link_gcc_math).
6920         (link_gcc_math_spec): Declare.
6921         (static_specs): Add link_gcc_math_spec.
6922         * expr.h (default_expand_library_builtin): Declare.
6923         * target-def.h (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
6924         (TARGET_INITIALIZER): Add TARGET_EXPAND_LIBRARY_BUILTIN.
6925         * config/i386/i386.h: Provide LINK_GCC_MATH_SPEC.
6926         * config/i386/i386.opt (msselibm): New target option.
6927         * config/i386/i386.c (ix86_builtin_function_variants): New array.
6928         (ix86_init_sse_abi_builtins): New function.
6929         (ix86_expand_library_builtin): Likewise.
6930         (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
6931         (override_options): Handle error conditions wrt -msselibm.
6932         (ix86_builtins): Add function codes for SSE2 ABI builtins.
6933         (ix86_init_builtins): Call ix86_init_sse_abi_builtins.
6934         * doc/extend.texi (__builtin_sse2_*): Document new target specific
6935         builtins.
6936
6937 2006-01-31  Richard Guenther  <rguenther@suse.de>
6938         Paolo Bonzini  <bonzini@gnu.org>
6939
6940         * doc/install.texi (--disable-libgcc-math): Document.
6941
6942 2006-01-30  Marcin Dalecki  <martin@dalecki.de>
6943
6944         * expr.h (expand_normal): new inline function.
6945         * builtins.c: use it, use EXPAND_NORMAL explicitely.
6946         * dojump.c: use it.
6947         * dwarf2out.c: use it.
6948         * expr.c: use it.
6949         * calls.c: use it.
6950         * expmed.c: use it.
6951         * except.c: use it.
6952         * config/sparc/sparc.c: use it.
6953         * config/i386/i386.c: use it.
6954         * config/rs6000/rs6000.c: use it.
6955         * config/arm/arm.c: use it.
6956         * config/mips/mips.c: use it.
6957         * stmt.c: use it, use EXPAND_NORMAL explicitely.
6958
6959 2006-01-30  Roger Sayle  <roger@eyesopen.com>
6960
6961         * config/i386/cygwin.h (GCC_DRIVER_HOST_INITIALIZATION): Cast
6962         argv to the appropriate type.
6963
6964 2006-01-30  Zdenek Dvorak <dvorakz@suse.cz>
6965
6966         * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Remove
6967         unreachable code.
6968
6969 2006-01-30  Ulrich Weigand  <uweigand@de.ibm.com>
6970
6971         PR target/26018
6972         * config/s390/s390.c (struct machine_function): New flag
6973         decomposed_literal_pool_addresses_ok_p.
6974         (s390_reorg): Set it before final stage of literal pool transforms.
6975         (s390_decompose_address): Only accept displacements of the form
6976         (minus (label_ref ...) (label_ref ...)) if that flag is set.
6977
6978 2006-01-30  Carlos O'Donell  <carlos@codesourcery.com>
6979
6980         * optabs.c (prepare_cmp_insn): If unbaised and unsigned then bias
6981         the comparison routine return.
6982
6983 2006-01-30  Michael Matz  <matz@suse.de>
6984
6985         * global.c (find_reg): Only evict for global regs.
6986         Take n_refs into account and dump more info.
6987
6988 2006-01-30  J"orn Rennecke <joern.rennecke@st.com>
6989
6990         PR target/14798:
6991         * sh.c (pragma_interrupt, trap_exit, sp_switch): Remove variable.
6992         (pragma_trap, pragma_nosave_low_regs): Likewise.
6993         (current_function_anonymous_args): Likewise.
6994         (sh_deferred_function_attributes): New variable.
6995         (sh_deferred_function_attributes_tail): Likewise.
6996         (print_operand): For '@', look up trap_exit attribute.
6997         (calc_live_regs): Look up trapa_handler attribute.  For trapa
6998         handlers, save/restore fpscr, but don't do any other
6999         interrupt-specific saves.
7000         Don't save r0..r7 if the nosave_low_regs attribute is in effect.
7001         Fix check for partially saved registers to check for SHmedia.
7002         (sh_expand_prologue, sh_expand_epilogue): Look up sp_switch attribute.
7003         (sh_output_function_epilogue): Don't clear any of the removed
7004         variables.
7005         (sh_insert_attributes): Don't check pragma_interrupt.
7006         Insert deferred attributes.  Check that interrupt attribute is
7007         present for other attributes that require its presence.
7008         (sh_attribute_table): Add new attributes trapa_handler and
7009         nosave_low_regs.
7010         (sh_handle_sp_switch_attribute, sh_handle_trap_exit_attribute):
7011         Don't check for pragma_interrupt.  Don't store argument.
7012         * sh.h (pragma_interrupt, sp_switch): Don't declare.
7013         (sh_deferred_function_attributes): Declare.
7014         (sh_deferred_function_attributes_tail): Likewise.
7015         * sh.md (sp_switch_1): Add operand.  Change generator caller.
7016         (sh_pr_interrupt, sh_pr_trapa, sh_pr_nosave_low_regs): Remove.
7017         (*return_i): Don't use when trap_exit attribute is in effect.
7018         (*return_trapa): New insn pattern.
7019         * sh-c.c: New file.
7020         * config.gcc (sh[123456ble]*-* | sh-*-*): New trailer stanza,
7021         setting c_target_objs and cxx_target_objs.
7022         * t-sh: Add rule for sh-c.o.
7023
7024 2006-01-30  Richard Guenther  <rguenther@suse.de>
7025
7026         PR c++/23372
7027         * gimplify.c (gimplify_target_expr): Handle easy cases
7028         without creating a temporary.
7029
7030 2006-01-30  Nathan Sidwell  <nathan@codesourcery.com>
7031
7032         * vec.h (safe_grow): Remove duplicated line.
7033
7034 2006-01-29  Diego Novillo  <dnovillo@redhat.com>
7035
7036         PR 25874
7037         * omp-low.c (execute_expand_omp): Move CFG cleanup code ...
7038         (expand_omp): ... here.
7039         (expand_omp_parallel): Only remove barriers for combined
7040         parallel+workshare constructs.
7041
7042 2006-01-29  Eric Botcazou  <ebotcazou@adacore.com>
7043
7044         Revert
7045
7046         2005-11-09  Eric Botcazou  <ebotcazou@adacore.com>
7047         * tree.c (build_qualified_type): Chain the new type to the original
7048         type's TYPE_NEXT_PTR_TO or TYPE_NEXT_REF_TO linked lists if it is
7049         a POINTER_TYPE or a REFERENCE_TYPE respectively.
7050         (build_pointer_type_for_mode): Only return unqualified types.
7051         (build_reference_type_for_mode): Likewise.
7052
7053 2006-01-29  Gabriel Dos Reis  <gdr@integgrable-solutions.net>
7054
7055         * configure.ac (cxx_compat_warn): Set if -Wc++-compat is supported.
7056         * Makefile.in (CXX_COMPAT_WARN): Define.
7057         * configure: Regenerate.
7058
7059 2006-01-29  Dorit Nuzman  <dorit@il.ibm.com>
7060
7061         PR tree-opt/25911
7062         * tree-vect-patterns.c (vect_recog_dot_prod_pattern): Change assert
7063         to an if check.
7064
7065 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
7066
7067         * toplev.c: Fix thinko.
7068
7069 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
7070             Marcin Dalecki  <martin@dalecki.de>
7071
7072         * toplev.c (floor_log2, exact_log2): Don't define if __cplusplus.
7073         (push_srcloc): Use XNEW.
7074         (init_asm_output, default_get_pch_validity): Use XNEWVEC.
7075
7076 2006-01-29  Kenneth Zadeck <zadeck@naturalbridge.com>
7077
7078         * df-core.c (df_set_blocks): Deleted all variable.
7079
7080 2006-01-28  Ian Lance Taylor  <ian@airs.com>
7081
7082         * cgraphunit.c (cgraph_assemble_pending_functions): Call
7083         cgraph_output_pending_asms.
7084
7085 2006-01-28  Zack Weinberg  <zackw@panix.com>
7086
7087         * c.opt: Add -W(no-)overlength-strings.
7088         * doc/invoke.texi: Document it.
7089         * c-opts.c (c_common_handle_option): -pedantic implies
7090         -Woverlength-strings, if not explicitly disabled already.
7091         (c_common_post_options): -Woverlength-strings defaults to off, and
7092         is always off for C++.
7093         * c-common.c (fix_string_type): Issue warning about strings longer
7094         than is portable only if warn_overlength_strings.  Rearrange code
7095         a little for clarity.
7096         * configure.in: Check for -Wno-overlength-strings as well before
7097         enabling -pedantic in stage 1.
7098         * Makefile.in (STRICT2_WARN): Add -Wno-overlength-strings.
7099         (gcc.o-warn, insn-automata.o-warn, build/gencondmd.o-warn): Delete.
7100
7101         * genconditions.c (write_header, write_one_condition)
7102         (write_conditions, write_writer): Consolidate very long strings
7103         that were broken up to fit in C89 portable limit.  Don't use
7104         printf when fputs will do.
7105
7106 2006-01-28  Adam Nemet  <anemet@caviumnetworks.com>
7107
7108         * combine.c (simplify_comparison <AND>): Check
7109         TRULY_NOOP_TRUNCATION before start using a subreg.
7110
7111         * config/mips/mips.md (*branch_zero<mode>,
7112         *branch_zero<mode>_inverted, *branch_equality<mode>,
7113         *branch_equality<mode>_inverted, *branch_equality<mode>_mips16):
7114         Remove mode check from comparisons.
7115
7116 2006-01-28  Kenneth Zadeck <zadeck@naturalbridge.com>
7117
7118         * config/mips/mips-protos.h (mips_set_live_on_entry): Deleted.
7119
7120 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
7121
7122         * expmed.c (const_mult_add_overflow_p): Remove.
7123         * expr.h: Remove the prototype for const_mult_add_overflow_p.
7124
7125         * recog.c (validate_replace_rtx_subexp): Remove.
7126         * recog.h: Remove the prototype for
7127         validate_replace_rtx_subexp.
7128
7129         * integrate.h: Remove the prototype for
7130         copy_decl_for_inlining.
7131         * rtl.h: Remove the prototype for mark_constant_function.
7132         * tree-vectorizer.h: Remove the prototype for
7133         vect_strip_conversion.
7134
7135         * modulo-sched.c (create_partial_schedule,
7136         free_partial_schedule, reset_partial_schedule): Make them
7137         static.
7138
7139         * hooks.c (hook_bool_rtx_int_false): Remove.
7140         * hooks.h: Remove the prototype for hook_bool_rtx_int_false.
7141
7142 2006-01-28  David Edelsohn  <edelsohn@gnu.org>
7143
7144         * config/rs6000/aix43.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
7145         and -mlong-double-128 are incompatible.
7146         * config/rs6000/aix52.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
7147         * config/rs6000/t-aix43 (LIB2FUNCS_EXTRA): Add ppc64-fp.c.
7148         (TARGET_LIBGCC2_CFLAGS): Define.
7149         * config/rs6000/t-aix52 (LIB2FUNCS_EXTRA): Same.
7150         (TARGET_LIBGCC2_CFLAGS): Same.
7151         * config/rs6000/ppc64-fp.c: Compile for 64-bit AIX.
7152
7153 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
7154
7155         PR c/19606.
7156         * c-typeck.c (build_binary_op): Perform implicit casts of
7157         operands before shortening them.
7158
7159         * cfgloopmanip.c (split_loop_bb): Remove.
7160         * cfgloop.h: Remove the prototype for split_loop_bb.
7161
7162         * cfgloop.c (flow_loop_outside_edge_p): Remove.
7163         * cfgloop.h: Remove the prototype for
7164         flow_loop_outside_edge_p.
7165
7166         * emit-rtl.c (init_virtual_regs): Make it static.
7167         * function.h: Remove the prototype for init_virtual_regs.
7168
7169         * recog.c (peephole2_optimize): Make it static.
7170         * recog.h: Remove the prototype for peephole2_optimize.
7171
7172 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
7173
7174         * df-scan.c (df_record_entry_block_defs): Check if
7175         INCOMING_RETURN_ADDR_RTX is defined.
7176
7177 2006-01-27  Daniel Berlin  <dberlin@dberlin.org>
7178             Kenneth Zadeck <zadeck@naturalbridge.com>
7179
7180         PR rtl-optimization/24762
7181         * doc/tm.texi: Added TARGET_EXTRA_LIVE_ON_ENTRY.
7182         * targhooks.c (hook_void_bitmap): New hook prototype.
7183         * targhoohs.h (hook_void_bitmap): Ditto.
7184         * bitmap.h (bitmap_head_def): Moved to coretypes.h.
7185         * coretypes.h (bitmap_head_def): Moved from bitmap.h.
7186         * target.h (live_on_entry): New function pointer.
7187         * df-scan.c (df_all_hard_regs): Removed.
7188         (df_scan_dump, df_hard_reg_init): Removed df_all_hard_regs.
7189         (df_scan_free_internal): Added df->entry_block_defs.
7190         (df_scan_alloc): Ditto.
7191         (df_scan_dump): Ditto.
7192         (df_uses_record): Plumbed flag field properly thru calls.
7193         Record EH_RETURN_DATA_REGNO in eh blocks unconditionally.
7194         This part fixes PR24762.
7195         (df_bb_refs_record): Added code to make the frame and arg
7196         pointers live in EH blocks.
7197         (df_refs_record): Added call to df_record_entry_block_defs.
7198         (df_record_entry_block_defs): New function.
7199         * df-core.c: Added comments to describe new artifical defs.
7200         * df.h (DF_REF_DIES_AFTER_THIS_USE): New flag in enum df_ref_flags.
7201         (entry_block_defs): New field in struct df.
7202         (df_all_hard_regs): Deleted.
7203         * target-def.h: Added TARGET_EXTRA_LIVE_ON_ENTRY.
7204         * df-problems.c (df_ru_bb_local_compute_process_def):
7205         Added code to handle artifical defs in the entry to a function.
7206         (df_ru_bb_local_compute): Ditto.
7207         (df_rd_bb_local_compute_process_def):  Ditto.
7208         (df_rd_bb_local_compute): Ditto.
7209         (df_lr_bb_local_compute): Ditto.
7210         (df_ur_bb_local_compute): Ditto.
7211         (df_urec_bb_local_compute):  Ditto.
7212         (df_chain_create_bb):  Ditto.
7213         (df_ur_local_finalize): Removed entry.
7214         (df_urec_init): Ditto.
7215         (df_urec_local_finalize): Ditto.
7216         (df_ri_bb_compute): Added detection of last use of pseudos.
7217         * Makefile.in (df-scan.o): Updated dependencies.
7218         * config/mips/mips-protos.h (mips_set_live_on_entry): Added.
7219         * config/mips/mips.c (mips_set_live_on_entry): Added.
7220         * config/mips/mips.c (TARGET_EXTRA_LIVE_ON_ENTRY): Added value
7221         for target hook.
7222         * dce.c (marked_insn_p): Added code to handle artifical defs.
7223
7224 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
7225
7226         * config/i386/emmintrin.h (_mm_cvtsd_f64): Add missing Intel
7227         intrinsic.
7228         (_mm_cvtsi128_si64): Likewise.
7229         (_mm_cvtsd_si64): Likewise.
7230         (_mm_cvttsd_si64): Likewise.
7231         (_mm_cvtsi64_sd): Likewise.
7232         (_mm_cvtsi64_si128): Likewise.
7233         * config/i386/mmintrin.h (_m_from_int64): Likewise.
7234         (_mm_cvtsi64_m64): Likewise.
7235         (_m_to_int64): Likewise.
7236         (_mm_cvtm64_si64): Likewise.
7237         * config/i386/xmmintrin.h (_mm_cvtss_si64): Likewise.
7238         (_mm_cvttss_si64): Likewise.
7239         (_mm_cvtsi64_ss): Likewise.
7240         (_mm_cvtss_f32): Likewise.
7241
7242 2006-01-27  Carlos O'Donell  <carlos@codesourcery.com>
7243
7244         * c-pragma.c (init_pragma) : Call c_register_pragma_with_expansion
7245         for pragma redefine_extname.
7246
7247 2006-01-27  Jakub Jelinek  <jakub@redhat.com>
7248
7249         PR target/25864
7250         * libgcc-std.ver: Add GCC_4.1.0 symbol version.
7251         * config/rs6000/t-linux64 (TARGET_LIBGCC2_CFLAGS): Only append
7252         -mno-minimal-toc to previous content.
7253         (bispecs): Remove goal.
7254         * config/rs6000/ppc64-fp.c: Define TMODES before including fp-bit.h.
7255         * config/rs6000/darwin-ldouble.c: Don't provide _xlq*@GCC_3.4
7256         compatibility aliases on powerpc-*-*gnu*.
7257         * config/rs6000/libgcc-ppc-glibc.ver: New file.
7258         * config/rs6000/t-ppccomm (SHLIB_MAPFILES): Append
7259         libgcc-ppc-glibc.ver on powerpc*-*-*gnu*.
7260         (TARGET_LIBGCC2_CFLAGS): Append -specs=ldblspecs.
7261         (ldblspecs): New goal.
7262         * config/rs6000/t-linux64 (SHLIB_MAPFILES): Removed.
7263         * mklibgcc.in: If $TPBIT is empty, don't compile _sf_to_tf and
7264         _df_to_tf.
7265         * config/fp-bit.h (TMODES): Don't define if none of TFLOAT,
7266         L_sf_to_tf or L_df_to_tf is defined.
7267
7268 2006-01-27  David Edelsohn  <edelsohn@gnu.org>
7269             Alan Modra  <amodra@bigpond.net.au>
7270
7271         PR target/25864
7272         * config/rs6000/linux.h (POWERPC_LINUX): Define.
7273         * config/rs6000/linux64.h (POWERPC_LINUX): Define.
7274         * config/rs6000/darwin-ldouble.c: Build on 32-bit PowerPC.
7275         * config/rs6000/darwin.h (TARGET_IEEEQUAD): Define to zero.
7276         * config/rs6000/aix.h (TARGET_IEEEQUAD): Define to zero.
7277         * config/rs6000/rs6000.c (rs6000_ieeequad): New variable.
7278         (rs6000_override_options): Initialize rs6000_ieeequad.
7279         Initialize TFmode format to ibm_extended_format if not
7280         TARGET_IEEEQUAD.
7281         (rs6000_handle_option): Accept -mabi= ibmlongdouble and
7282         ieeelongdouble.
7283         (rs6000_emit_move): Move !TARGET_IEEEQUAD as two parts.
7284         (rs6000_return_in_memory): Only return IEEEQUAD in memory.
7285         (function_arg_advance): IBM long double passed in two FPRs, not
7286         split.
7287         (function_arg): IBM long double passed in FPRs.
7288         (rs6000_pass_by_reference): Only IEEEQUAD passed by reference.
7289         (rs6000_gimplify_va_arg): IBM long double passed in two FPRs.
7290         Only multireg GPR aligned.
7291         (rs6000_init_libfuncs): Enable IBM long double functions if not
7292         IEEEQUAD.
7293         (rs6000_generate_compare): Use IBM long double compare if not
7294         TARGET_IEEEQUAD.
7295         * config/rs6000/rs6000.h (rs6000_ieeequad): Declare.
7296         (TARGET_IEEEQUAD): Define.
7297         (CANNOT_CHANGE_MODE_CLASS): Any mode larger than doubleword if
7298         not TARGET_IEEEQUAD.
7299         * config/rs6000/rs6000.md: Enable TFmode patterns if
7300         !TARGET_IEEEQUAD.
7301         * config/rs6000/t-ppccomm (LIB2FUNCS_EXTRA): Add darwin-ldouble.c.
7302         * config/rs6000/svr4.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
7303         and -mlong-double-128 are incompatible.
7304         * doc/invoke.texi (-mabi): Collect options together.  Add
7305         ibmlongdouble and ieeelongdouble.
7306
7307 2006-01-27  Richard Sandiford  <richard@codesourcery.com>
7308
7309         * doc/rtl.texi (SYMBOL_REF_DATA): Adjust documentation for new
7310         opaque type.
7311         * optabs.c (init_one_libfunc): Use SET_SYMBOL_REF_DECL.
7312         * varasm.c (make_decl_rtl, build_constant_desc): Likewise.
7313         (force_const_mem): Use SET_SYMBOL_REF_CONSTANT.
7314         * rtl.h (rtunion_def): Remove rt_ptr.
7315         (X0PTR): Delete.
7316         (SYMBOL_REF_DATA): Use X0ANY instead of X0PTR.
7317         (SET_SYMBOL_REF_DECL, SET_SYMBOL_REF_CONSTANT): New macros.
7318         * config/i386/winnt.c (i386_pe_mark_dllexport)
7319         (i386_pe_mark_dllimport): Use SET_SYMBOL_REF_DECL.
7320
7321 2006-01-27 Gabor Loki <loki@gcc.gnu.org>
7322
7323         * cfgcleanup.c (try_crossjump_to_edge): Fix comment typo.
7324
7325 2006-01-26 Alexandre Oliva  <aoliva@redhat.com>
7326
7327         PR other/24829
7328         PR target/24831
7329         * gthr-dce.h: Do not gthrw-ify pthread_once_init,
7330         pthread_key_delete.  From John David Anglin.  gthrw-ify
7331         pthread_getunique_np only if it it's not a macro.  Delete
7332         UNUSED macro.
7333         (__gthread_objc_condition_allocate, __gthread_objc_condition_deallocate,
7334         __gthread_objc_condition_wait, __gthread_objc_condition_broadcast,
7335         __gthread_objc_condition_signal, __gthread_key_delete): Add
7336         "__attribute__ ((__unused__))" to unused arguments.
7337         (__gthread_recursive_mutex_init_function): Add missing return.
7338         * gthr-dce.h, gthr-tpf.h, gthr-solaris.h, gthr-posix.h,
7339         gthr-posix95.h: Use macro-based approach for name redirection
7340         on targets missing weakref.
7341
7342 2006-01-26  Zack Weinberg  <zackw@panix.com>
7343
7344         * genconditions.c (write_header): In generated code, #ifdef out
7345         all includes and fake declarations, except includes of bconfig.h
7346         and system.h, unless GCC_VERSION >= 3001.  Do not include
7347         gensupport.h in any case.
7348         (write_conditions): Generate a definition of struct c_test.  Add
7349         a comment to the generated #endif.
7350         (write_one_condition): Escape backslashes in string too.
7351         (write_writer): Generated code must escape backslashes and quote
7352         marks (but not newlines) in the strings it writes.
7353         * Makefile.in (build/gencondmd.o): Update dependencies.
7354
7355 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
7356
7357         PR target/25961
7358         * Makefile.in (insn-automata.o): Add header file dependencies.
7359         * genautomata.c: Add includes.
7360
7361 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
7362
7363         PR target/25961
7364         * Makefile.in (insn-automata.o): Add -Wno-error flag.
7365
7366 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
7367
7368         * configure.ac: Expect target tools paths to be passed from the toplevel
7369         and wrap the detection into AS_SET_VAR_IF.  Extract side-effects out of
7370         AS_SET_VAR_IF.
7371         * acinclude.m4 (gcc_AC_TOOL_DIRS, gcc_AC_CHECK_TOOL): Remove.
7372
7373 2006-01-26  Alexandre Oliva  <aoliva@redhat.com>
7374
7375         PR c/25892
7376         * c.opt (Wpointer-sign): Init to -1.
7377         * c-opts.c (c_common_handle_option): Set to 1 on OPT_Wall and
7378         OPT_pedantic, to 0 otherwise.
7379         * doc/invoke.texi: Update.
7380
7381 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
7382
7383         * config/i386/i386.md (extendsfdf2, extendsfxf2, extenddfxf2): Emit
7384         constants provided by 80387 instructions in the destination mode.
7385
7386 2006-01-26  Richard Guenther  <rguenther@suse.de>
7387             Andrew Pinski  <pinskia@physics.uc.edu>
7388
7389         PR tree-opt/21470
7390         partial PR tree-opt/17064
7391         * tree-ssa-structalias.c (intra_create_variable_infos):
7392         Create heap variables for incoming parameters if
7393         flag_argument_noalias > 1.
7394         (find_what_p_points_to): Look through default defs of
7395         parameter decls.
7396
7397 2006-01-26  Jeff Law  <law@redhat.com>
7398
7399         PR ada/25900
7400         * tree-vrp.c (extract_range_from_assert): When merging a VR_RANGE
7401         with a VR_ANTI_RANGE and the VR_ANTI_RANGE is completely contained
7402         within the VR_RANGE, use the VR_RANGE as the result, not the
7403         VR_ANTI_RANGE.
7404         (adjust_range_with_scev): Reject ranges from SCEV which are out of
7405         bounds for the type.
7406
7407 2006-01-26  Daniel Berlin  <dberlin@dberlin.org>
7408
7409         * tree-ssa-alias.c (maybe_create_global_var): Change
7410         subvar walking to an assertion that we don't have subvar'd variables.
7411
7412 2006-01-26  Andrew Pinski  <pinskia@physics.uc.edu>
7413
7414         PR C/25861
7415         * c-common.c (c_common_truthvalue_conversion) <case ADDR_EXPR>:
7416         Use a new variable, inner.  PARM_DECLs are always non-weak.
7417
7418 2006-01-26  Shantonu Sen  <ssen@opendarwin.org>
7419
7420         * tree.h (OMP_CLAUSE_SUBCODE_CHECK): Add definition for
7421         --disable-checking.
7422
7423 2006-01-26  Adam Nemet  <anemet@caviumnetworks.com>
7424
7425         * config/mips/mips.md (*clear_upper32): New combiner pattern.
7426
7427 2006-01-26  Richard Earnshaw  <richard.earnshaw@arm.com>
7428
7429         * arm.md (smaxsi3, sminsi3): Convert to define_expand.
7430         (smax_insn, smin_insn, smax_0, smin_0): New.
7431
7432 2006-01-26  Hans-Peter Nilsson  <hp@axis.com>
7433
7434         PR target/25947
7435         * config/cris/cris.c (cris_order_for_addsi3): New function.
7436         * config/cris/cris-protos.h: Prototype it.
7437         * config/cris/cris.md (split for "move.S1 [rx=rx+i],ry")
7438         (split for "move.S1 ry,[rx=rx+i]", split for "clear.[bwd] [rx=rx+i]")
7439         (split for "mov(s|u).S1 [rx=rx+i],ry", split for "op.S1 [rx=rx+i],ry")
7440         (split for "op.S1 [rx=rx+i],ry (swapped)")
7441         (split for "op(s|u).S1 [rx=rx+i],ry")
7442         (split for "op(s|u).S1 [rx=rx+i],ry (swapped, plus or bound)"):
7443         Apply cris_order_for_addsi3 when generating addsi3 insns.
7444
7445 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
7446
7447         * tree.h (TREE_RANGE_CHECK): Fix range predicate.
7448         (TREE_BLOCK): Add call to EXPR_CHECK.
7449
7450 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
7451
7452         PR 25886
7453         * tree-dump.c (dequeue_and_dump): Handle OMP_CLAUSE.
7454         * tree-pretty-print.c (dump_omp_clause): Extract from ...
7455         (dump_omp_clauses): ... here.
7456         (dump_generic_node): Handle OMP_CLAUSE.
7457         * tree.c (omp_clause_num_ops): New.
7458         (omp_clause_code_name): New.
7459         (tree_code_size): Handle OMP_CLAUSE.
7460         (tree_size): Likewise.
7461         (make_node): Document handling of OMP_CLAUSE.
7462         (tree_node_structure): Handle OMP_CLAUSE.
7463         (omp_clause_check_failed): New.
7464         (omp_clause_range_check_failed): New.
7465         (omp_clause_operand_check_failed): New.
7466         (build_omp_clause): New.
7467         (walk_tree): Adjust handling of OMP_CLAUSE_* nodes.
7468         * tree.h (enum omp_clause_code): Declare.
7469         (OMP_CLAUSE_SUBCODE_CHECK): Define.
7470         (OMP_CLAUSE_RANGE_CHECK): Define.
7471         (OMP_CLAUSE_ELT_CHECK): Define.
7472         (omp_clause_check_failed): Declare.
7473         (omp_clause_operand_check_failed): Declare.
7474         (omp_clause_range_check_failed): Declare.
7475         (OMP_CLAUSE_CHAIN): Do not use TREE_RANGE_CHECK.
7476         (OMP_CLAUSE_OPERAND): Use OMP_CLAUSE_RANGE_CHECK.
7477         (OMP_CLAUSE_PRIVATE_DEBUG): Use OMP_CLAUSE_SUBCODE_CHECK.
7478         (OMP_CLAUSE_LASTPRIVATE): Likewise.
7479         (OMP_CLAUSE_IF_EXPR): Likewise.
7480         (OMP_CLAUSE_NUM_THREADS_EXPR): Likewise.
7481         (OMP_CLAUSE_SCHEDULE_CHUNK_EXPR): Likewise.
7482         (OMP_CLAUSE_REDUCTION_CODE): Likewise.
7483         (OMP_CLAUSE_REDUCTION_INIT): Likewise.
7484         (OMP_CLAUSE_REDUCTION_MERGE): Likewise.
7485         (OMP_CLAUSE_REDUCTION_PLACEHOLDER): Likewise.
7486         Use tree_node.omp_clause.subcode instead of TREE_COMPLEXITY.
7487         (OMP_CLAUSE_SCHEDULE_KIND): Likewise.
7488         (OMP_CLAUSE_DEFAULT_KIND): Likewise.
7489         (OMP_CLAUSE_CODE): Define.
7490         (OMP_CLAUSE_SET_CODE): Define.
7491         (OMP_CLAUSE_CODE): Define.
7492         (OMP_CLAUSE_OPERAND): Define.
7493         (struct tree_omp_clause): Declare.
7494         (union tree_node): Add field 'omp_clause'.
7495         * treestruct.def (TS_OMP_CLAUSE): Define.
7496         * tree.def (OMP_CLAUSE_PRIVATE, OMP_CLAUSE_SHARED
7497         OMP_CLAUSE_FIRSTPRIVATE, OMP_CLAUSE_LASTPRIVATE,
7498         OMP_CLAUSE_REDUCTION, OMP_CLAUSE_COPYIN,
7499         OMP_CLAUSE_COPYPRIVATE, OMP_CLAUSE_IF,
7500         OMP_CLAUSE_NUM_THREADS, OMP_CLAUSE_SCHEDULE,
7501         OMP_CLAUSE_NOWAIT, OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Remove.
7502         (OMP_CLAUSE): Define.
7503         * print-tree.c (print_node): Handle OMP_CLAUSE.
7504         * omp-low.c: Adapt all uses of OMP_CLAUSE_* nodes.
7505         * c-typeck.c: Likewise.
7506         * gimplify.c: Likewise.
7507         * c-omp.c: Likewise.
7508         * tree-nested.c: Likewise.
7509         * tree-inline.c: Likewise.
7510         * c-parser.c: Likewise.
7511         * gimple-low.c (lower_omp_directive): Do not set TREE_BLOCK on
7512         clauses.
7513
7514 2006-01-25  Roger Sayle  <roger@eyesopen.com>
7515
7516         PR rtl-optimization/25703
7517         * combine.c (try_combine): Handle zero_extract and strict_low_part
7518         of non-lowpart SUBREGs for constant reg_subword_p set optimization.
7519
7520 2006-01-25  Peter Bergner  <bergner@vnet.ibm.com>
7521
7522         * global.c: Fix comment typos.
7523
7524 2006-01-25  Andrew Pinski  <pinskia@physics.uc.edu>
7525
7526         PR target/25758
7527         * config/i386/i386.c (output_pic_addr_const) <case SYMBOL_REF>:
7528         Use output_addr_const instead of assemble_name.
7529
7530 2006-01-25  Paolo Bonzini  <bonzini@gnu.org>
7531
7532         * Makefile.in (sched-vis.o): Update dependencies.
7533         * haifa-sched.c (sched_finish): Clear current_sched_info.
7534         * cfg.c (dump_bb_info): New, split from dump_flow_info.
7535         (dump_flow_info): Call it.
7536         * passes.c (execute_todo): Call print_rtl_slim_with_bb to make
7537         a slim RTL dump.
7538         * basic-block.h (dump_bb_info): Declare.
7539         * tree-dump.c (dump_enable_all): OR the flags of a -fdump-tree-all
7540         option, and apply options only for dump files whose TDF_RTL,
7541         TDF_TREE, or TDF_IPA bits match.
7542         * rtl.h: Declare new functions exported from sched-vis.c.
7543         * sched-vis.c: Enable also if scheduling is not used.
7544         (print_value): Print the mode of registers if not inside scheduling.
7545         (print_insn): Make it work outside the scheduler.  Beautify the output
7546         a bit.
7547         (dump_insn_slim, debug_insn_slim, print_rtl_slim_with_bb): New.
7548
7549 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
7550
7551         * doc/rtl.texi (SYMBOL_REF_CONSTANT, SYMBOL_REF_DATA): Document.
7552         * gengtype.c (adjust_field_rtx_def): Garbage-collect field 2 of
7553         a SYMBOL_REF as either a tree or a constant_descriptor_rtx,
7554         depending on the value of CONSTANT_POOL_ADDRESS_P.
7555         * optabs.c (init_one_libfunc): Nullify SYMBOL_REF_DATA rather than
7556         SYMBOL_REF_DECL.
7557         * varasm.c (make_decl_rtl, build_constant_desc): Set SYMBOL_REF_DATA
7558         rather than SYMBOL_REF_DECL.
7559         (rtx_constant_pool): Remove const_rtx_sym_htab.
7560         (const_desc_rtx_sym_hash, const_desc_rtx_sym_eq): Delete.
7561         (init_varasm_status): Don't initialize const_rtx_sym_htab.
7562         (force_const_mem): Point SYMBOL_REF_DATA to the constant pool entry.
7563         Remove handling of const_rtx_sym_htab.
7564         (find_pool_constant): Delete.
7565         (get_pool_constant, get_pool_constant_mark): Use SYMBOL_REF_CONSTANT
7566         rather than find_pool_constant.
7567         (get_pool_constant_for_function): Delete.
7568         (get_pool_mode, mark_constant): Use SYMBOL_REF_CONSTANT rather than
7569         find_pool_constant.
7570         * rtl.h (rtunion_def): Add rt_constant and rt_ptr fields.
7571         (X0CONSTANT, X0PTR, SYMBOL_REF_DATA): New macros.
7572         (SYMBOL_REF_DECL): Return NULL if CONSTANT_POOL_ADDRESS_P.
7573         (SYMBOL_REF_CONSTANT): New macro.
7574         (get_pool_constant_for_function): Delete.
7575         * config/i386/winnt.c (i386_pe_mark_dllexport): Set SYMBOL_REF_DATA
7576         rather than SYMBOL_REF_DECL.
7577         (i386_pe_mark_dllimport): Likewise.
7578         * config/rs6000/rs6000.c (rs6000_emit_move): Copy SYMBOL_REF_DATA
7579         rather than SYMBOL_REF_DECL.
7580         * config/darwin.c (machopic_indirect_data_reference): Likewise.
7581         (machopic_indirect_call_target): Likewise.
7582
7583 2006-01-25  Eric Botcazou  <ebotcazou@adacore.com>
7584
7585         * flow.c (delete_noop_moves): Add missing EOL to dump message.
7586
7587 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
7588
7589         * genattrtab.c (gen_bypass): Allow bypasses to contain whitespace.
7590
7591 2006-01-25  Kaz Kojima  <kkojima@gcc.gnu.org>
7592
7593         * config/sh/predicates.md (sh_register_operand): Accept CONST_DOUBLE.
7594
7595 2006-01-24  David Daney  <ddaney@avtrex.com>
7596
7597         PR java/25816
7598         * configure.ac (enable_tls): New enable option.
7599         (HAVE_AS_TLS): Don't do assembler check if enable_tls set.
7600         * configure: Regenerate.
7601         * doc/install.texi (--enable-tls): Document new option.
7602         (--disable-tls): Ditto.
7603
7604 2006-01-24  Richard Henderson  <rth@redehat.com>
7605
7606         * alias.h (ALIAS_SET_MEMORY_BARRIER): New.
7607         * alias.c (true_dependence): Respect it.
7608         (canon_true_dependence, write_dependence_p): Likewise.
7609         * builtins.c (get_builtin_sync_mem): Set it.
7610
7611 2006-01-25  Zdenek Dvorak <dvorakz@suse.cz>
7612
7613         * loop-iv.c (iv_analysis_loop_init): Use df analysis in a more
7614         efficient way.
7615
7616 2006-01-24  DJ Delorie  <dj@redhat.com>
7617
7618         * expmed.c (store_bit_field): Don't arbitrarily deny using insv
7619         for storing constants in single-bit bitfields.
7620
7621 2006-01-25  Ben Elliston  <bje@au.ibm.com>
7622
7623         * dfp.c (dfp_byte_swap): Use uint32_t and not unsigned long.
7624
7625 2006-01-24  Andrew Pinski  <pinskia@physics.uc.edu>
7626
7627         PR tree-opt/25860
7628         * tree-ssa-pre.c (phi_translate): Return NULL
7629         for AGGREGATE_TYPE's.
7630
7631 2006-01-24  Zack Weinberg  <zackw@panix.com>
7632
7633         * genautomata.c (process_state_for_insn_equiv_partition):
7634         Use xcalloc for insn_arcs_array.
7635         * vec.h (DEF_VEC_ALLOC_FUNC_I): New set of templates.
7636         (DEF_VEC_ALLOC_I): Use it, not DEF_VEC_ALLOC_FUNC_P.
7637
7638 2006-01-24  Richard Henderson  <rth@redhat.com>
7639
7640         * genextract.c (VEC_safe_set_locstr): Take VEC by reference;
7641         update all callers.
7642
7643 2006-01-23  Paolo Bonzini  <bonzini@gnu.org>
7644
7645         PR rtl-optimization/25890
7646         PR rtl-optimization/25905
7647         * combine.c (expand_compound_operation, expand_field_assignment):
7648         Fail if the bitfield's final position is out of bounds.
7649
7650 2006-01-24  Ian Lance Taylor  <ian@airs.com>
7651
7652         PR middle-end/25930
7653         * cgraphunit.c (cgraph_output_in_order): Don't clear
7654         cgraph_asm_nodes until after asm strings have been output.
7655
7656 2006-01-23  Adam Nemet  <anemet@caviumnetworks.com>
7657
7658         * fix-header.c (read_scan_file): Add new parameter imultilib when
7659         calling register_include_chains.
7660
7661 2006-01-23  Diego Novillo  <dnovillo@redhat.com>
7662
7663         * omp-low.c: Update documentation.
7664
7665 2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
7666             Daniel Berlin  <dberlin@dberlin.org>
7667
7668         PR tree-opt/25315
7669         PR tree-opt/25857
7670         * tree-ssa-pre.c (insert_extra_phis): If an incomming edge is abnormal
7671         return from the function.
7672
7673 2006-01-22  Zack Weinberg  <zackw@panix.com>
7674
7675         * rtl.def (match_code): Add second argument.
7676         * genpreds.c (write_extract_subexp): New function.
7677         (write_match_code): Add path argument.  Use write_extract_subexp.
7678         (write_predicate_expr): Pass path to write_match_code.
7679         (mark_mode_tests): MATCH_CODE applied to a subexpression does
7680         not perform a mode test.
7681         * genrecog.c (compute_predicate_codes): MATCH_CODE applied to
7682         a subexpression does not constrain the top-level code set.
7683         * read-rtl.c (read_rtx_variadic): New function.
7684         (read_rtx_1): Use it; allow AND and IOR to be variadic.
7685         * doc/md.texi: Document new notation.
7686         * config/i386/predicates.md (cmpsi_operand_1): Fold into ...
7687         (cmpsi_operand): ... here, using new notation.
7688
7689 2006-01-22  Zack Weinberg  <zackw@panix.com>
7690
7691         * varray.c: Remove GENERATOR_FILE #ifdefs.
7692
7693 2006-01-22  Zack Weinberg  <zackw@panix.com>
7694
7695         * genautomata.c (output_reserved_units_table): Emit nothing if
7696         description->query_units_num is zero.  Remove extra blank line.
7697         (output_cpu_unit_reservation_p): Short circuit
7698         if description->query_units_num is zero.
7699
7700 2006-01-22  Zack Weinberg  <zackw@panix.com>
7701
7702         * genattrtab.c: Don't include genattrtab.h.  Define ATTR_NONE
7703         and ATTR_SPECIAL (from genattrtab.h).  Don't define num_dfa_decls
7704         nor any of the random handful of variables that used to be necessary
7705         when this program was linked with rtlanal.o.  Prune set of forward
7706         function declarations.
7707         (struct attr_desc): Remove static_p field.
7708         (hash_obstack, temp_obstack, attr_hash_table, attr_printf)
7709         (check_attr_test, make_internal_attr, make_numeric_value): Make static.
7710         (attr_string): Do not read the character one past the length of
7711         the string.
7712         (write_attr_get, find_attr, make_internal_attr): Don't touch static_p.
7713         (struct insn_reserv, all_insn_reservs, last_insn_reserv_p)
7714         (n_insn_reservs, gen_insn_reserv, struct bypass_list, all_bypasses)
7715         (n_bypasses, gen_bypass_1, gen_bypass, process_bypasses)
7716         (make_automaton_attrs): New.
7717         (main): Do not call into genautomata.  Call local gen_bypass
7718         and gen_insn_reserv as appropriate.  Call make_automaton_attrs.
7719         Remove special case for insn_alts.
7720         * genautomata.c: Include gensupport.h; not genattrtab.h nor
7721         varray.h (leftover from previous change).  Prune set of forward
7722         function declarations.  Remove state_alts fields from all
7723         structures.  Remove state_alts_table from struct automaton.
7724         Make everything except main static.  Do not maintain num_dfa_decls.
7725         Do not maintain state_alts fields of various structures.
7726         (process_decls): Don't validate condexp for dm_insn_reserv decls.
7727         (add_arc): Remove state_alts argument.  All callers updated.
7728         (output_reserved_units_table): Emit #ifdef here...
7729         (output_tables): ...not here.  Don't generate state_alts tables.
7730         (expand_automata): Don't generate attributes.
7731         (write_automata): Don't generate state_alts functions.
7732         (main): New function.
7733         (it_is_empty_reserv_sets, output_state_alts_full_vect_name)
7734         (output_state_alts_comb_vect_name, output_state_alts_check_vect_name)
7735         (AUTOMATON_STATE_ALTS_MACRO_NAME, INTERNAL_STATE_ALTS_FUNC_NAME)
7736         (STATE_ALTS_FUNC_NAME, INSN_DEFAULT_LATENCY_FUNC_NAME)
7737         (BYPASS_P_FUNC_NAME, output_state_alts_table)
7738         (output_automata_list_state_alts_code, output_internal_state_alts_func)
7739         (output_state_alts_func, make_insn_alts_attr, make_bypass_attr)
7740         (make_internal_dfa_insn_code_attr, make_default_insn_latency_attr):
7741         Delete.
7742         * genattr.c: Declare internal_dfa_insn_code in insn-attr.h.
7743         * genattrtab.h: Delete file.
7744         * Makefile.in (OBJS-common): Add insn-automata.o.
7745         (insn-automata.o): New rule.
7746         (simple_generated_c): Add insn-automata.c.
7747         (build/genattrtab.o, build/genautomata.o): Update dependencies.
7748         (genprogmd): Add automata.
7749         (build/genattrtab): Needs no extra objects nor libraries.
7750         (build/genautomata): Needs build/vec.o and -lm.
7751
7752 2006-01-22  Zack Weinberg  <zackw@panix.com>
7753
7754         * genautomata.c (process_state_longest_path, max_dfa_issue_rate)
7755         (output_dfa_max_issue_rate, locked_states_num): Delete.
7756         (struct automaton): Add locked_states field.
7757         (output_dead_lock_vect): Save number of locked states in
7758         automaton->locked_states.  If it is zero, don't print anything.
7759         (output_max_insn_queue_index_def): Define max_insn_queue_index const.
7760         (output_internal_dead_lock_func): Only test the dead_lock_vect
7761         for automata that have locked states.
7762         (output_statistics): Always print the number of locked states for
7763         each automaton.  Calculate total number of locked states here.
7764         (write_automata): Don't call output_dfa_max_issue_rate.
7765         * genattrtab.c: Define length_unit_log as a const variable.
7766         * genattr.c: Don't emit MAX_DFA_ISSUE_RATE.  Declare
7767         max_insn_queue_index const.
7768         * final.c (length_unit_log): Declare const.
7769         * doc/tm.texi: Remove all references to MAX_DFA_ISSUE_RATE.
7770
7771 2006-01-22  Zack Weinberg  <zackw@panix.com>
7772
7773         * genautomata.c:  Include vec.h, not varray.h.
7774         Delete vla_ptr_t, all of the VLA_PTR_ macros, and all of the
7775         VLA_HWINT_ macros.  Change vla_hwint_t to a typedef for
7776         VEC(vect_el_t,heap) *.  Convert all uses of VLA_* macros to
7777         VEC_* macros operating on appropriately typed vectors, or to
7778         malloced arrays when the size is known in advance.  Const-ify
7779         many char* variables and function arguments.  No functional changes.
7780         * Makefile.in (build/varray.o): Delete rule.
7781         (build/genattrtab): Depend on build/vec.o instead of build/varray.o.
7782         (build/genautomata.o): Depend on vec.h instead of $(VARRAY_H).
7783
7784 2006-01-22  Zack Weinberg  <zackw@panix.com>
7785
7786         * gensupport.c: Define get_insn_name and record_insn_name here.
7787         (read_md_rtx): Call record_insn_name as appropriate.
7788         * genattr.c, genattrtab.c, gencodes.c, genconfig.c, genemit.c
7789         * genextract.c, genflags.c, genopinit.c, genoutput.c, genpeep.c
7790         * genpreds.c, genrecog.c: Don't define get_insn_name nor
7791         record_insn_name.
7792         * Makefile.in (BUILD_SUPPORT, BUILD_PRINT): Fold into BUILD_RTL.
7793         (BUILD_VARRAY): Delete.
7794         (genprognormal): Rename genprogmd.  Fold in all programs from
7795         genprognoprint; also attrtab.
7796         (build/genattrtab): Just mention genautomata.o and varray.o.
7797         Reorganize a bit, add comments to make the categories clearer.
7798
7799 2006-01-22  Zack Weinberg  <zackw@panix.com>
7800
7801         * genconditions.c (condition_table, add_condition): Delete.
7802         (write_conditions): Don't emit n_insn_conditions nor
7803         insn_elision_unavailable.  Issue the gcc version #ifdef here,
7804         inside the table, with no #else clause ...
7805         (write_header): ...not here.
7806         (write_writer): New function.
7807         (main): Don't initialize condition_table.  Use add_c_test.
7808         Call write_writer.
7809         * gensupport.c (init_md_reader_args_cb): Handle multiple input
7810         files on the command line.
7811         (maybe_eval_c_test): Don't check insn_elision_unavailable.
7812         Return -1 if there is no entry in the table, don't abort.
7813         (add_c_test, traverse_c_tests): New functions.
7814         * gensupport.h (insn_elision_unavailable, insn_conditions)
7815         (n_insn_conditions): Delete declarations.
7816         (add_c_test, traverse_c_tests): Declare.
7817         * read-rtl.c: Include gensupport.h.
7818         (read_conditions): New function.
7819         (read_rtx): If read_rtx_1 returns 0, treat as EOF.
7820         (read_rtx_1): If we get EOF when we were looking for an initial
7821         open paren, return 0.  Call read_conditions when appropriate.
7822         * Makefile.in: Kill BUILD_EARLY_SUPPORT and all references to
7823         dummy-conditions.o.  Eliminate references to insn-conditions.o,
7824         or change them to build/gencondmd.o, as appropriate.  Remove
7825         insn-constants.h from $(simple_generated_h) and insn-conditions.c
7826         from $(simple_generated_c).  For all files remaining in those
7827         two lists, add insn-conditions.md to the generator command line.
7828         Give insn-constants.h/s-constants their own rules.  Add rules
7829         for build/gencondmd.c, s-conditions, insn-conditions.md, s-condmd.
7830         (build/read-rtl.o): Depend on gensupport.h.
7831         (genprognormal): Include preds.
7832         (genprogearly): Rename genprognoprint; only difference is now that
7833         they don't link with $(BUILD_PRINT).
7834         * dummy-conditions.c: Delete.
7835
7836 2006-01-22  Zack Weinberg  <zackw@panix.com>
7837
7838         * genextract.c: Don't include insn-config.h.  Do include vec.h.
7839         Declare vectors of int, char, and locstr.
7840         (locstr): New typedef.
7841         (struct extraction): Make all array fields into bare pointers.
7842         (insn_name_ptr, insn_name_ptr_size): Move down by get_insn_name.
7843         (insn_code_number): Delete.
7844         (accum_extract): New struct.
7845         (VEC_safe_set_locstr, VEC_char_to_string): New functions.
7846         (gen_insn): Take insn_code_number as an argument.  Use an
7847         accum_extract structure instead of loading data directly into
7848         a struct extraction, and having to know how big it might get.
7849         (walk_rtx): Operate entirely on an accum_extract structure.
7850         (print_path): Avoid unnecessary use of printf.
7851         (print_header): New function, split out of main.  Distinguish
7852         more carefully between an unrecognizable insn and an insn that
7853         has the code number of a define_expand.
7854         (main): Pass insn_code_number to gen_insn.  Call print_header
7855         only after parsing.  Avoid unnecessary use of printf.
7856         * Makefile.in (build/vec.o): New rule.
7857         (build/genextract): Depend on build/vec.o.
7858         (build/genextract.o): Don't depend on insn-config.h.
7859
7860 2006-01-22  Zack Weinberg  <zackw@panix.com>
7861
7862         * Makefile.in: Consolidate most rules that use $(CC_FOR_BUILD) and/or
7863         $(RUN_GEN).  Use pattern rules to factor out as much boilerplate as
7864         practical.  Eliminate per-generator-program link rules.
7865
7866 2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
7867
7868         PR middle-end/24437
7869         * tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
7870         with a call expr to ...
7871         * fold-const.c (fold_ternary) <case CALL_EXPR>: Here.
7872
7873 2006-01-23  Richard Guenther  <rguenther@suse.de>
7874
7875         * cfgloopmanip.c (lv_adjust_loop_entry_edge): Add comment
7876         before make_edge with conditional EDGE_TRUE_VALUE.
7877
7878 2006-01-23  Steven Bosscher  <stevenb.gcc@gmail.com>
7879         Jan Hubicka  <jh@suse.cz>
7880         Richard Guenther  <rguenther@suse.de>
7881
7882         PR rtl-optimization/25654
7883         * cfgexpand.c (aggregate_contains_union_type): New function.
7884         (add_alias_set_conflicts): Call it.  Make sure to add conflicts
7885         for structure variables that contain a union type.
7886
7887 2006-01-23  Richard Sandiford  <richard@codesourcery.com>
7888
7889         * gengtype.c (new_structure): Return the structure.
7890         (create_option): Add an extra "next" argument.
7891         (create_field): New function.
7892         (adjust_field_rtx_def): Use create_option and create_field.
7893         Remove a now-unnecessary call to find_structure.
7894         (adjust_field_tree_def): Likewise.
7895         (note_yacc_type): Remove an unnecessary call to find_structure.
7896         * gengtype.h (new_structure): Return the structure.
7897         (create_option): Add an extra argument.
7898         * gengtype-yacc.y (type): Remove unnecessary calls to find_structure.
7899         (option): Adjust calls to create_option.
7900
7901 2006-01-22  David Edelsohn  <edelsohn@gnu.org>
7902
7903         * config/rs6000/aix.h (STACK_BOUNDARY): Define.
7904
7905 2006-01-22  Paul Brook  <paul@codesourcery.com>
7906         Peter Barada  <peter@the-baradas.com>
7907
7908         * config/m68k/m68k.md: Add Coldfire FPU support.
7909         Define FP mode macro and associated attributes.
7910         Use it for float mode patterns.
7911         * config/m68k/linux.h (FUNCTION_VALUE): Use m68k_function_value.
7912         (LIBCALL_VALUE): Use m68k_libcall_value.
7913         * config/m68k/m68k-protos.h (m68k_libcall_value): Add prototype.
7914         (m68k_function_value): Ditto.
7915         (emit_move_sequence): Ditto.
7916         * config/m68k/m68kemb.h (LIBCALL_VALUE): Use m68k_libcall_value.
7917         * config/m68k/m68k-none.h (ASM_SPEC): Add mcfv4e.
7918         * config/m68k/t-m68kelf (MULTILIB_OPTIONS): Add mcfv4e.
7919         (MULTILIB_EXCEPTIONS): Ditto.
7920         * config/m68k/m68k.opt: Add mcfv4e.
7921         * config/m68k/m68k.c (m68k_handle_option): Handle OPT_mcfv4e.
7922         (m68k_compute_frame_layout): Include space for ColdFire FPU regs.
7923         (m68k_output_function_prologue): Save ColdFire FPU registers.
7924         (m68k_output_function_epilogue): Restore ColdFire FPU registers.
7925         (force_mode, fp_reg_operand, emit_move_sequence): New functions.
7926         (m68k_regno_mode_ok): Don't allow types larget than 8 bytes in
7927         ColdFire FPU registers.
7928         (m68k_libcall_value, m68k_function_value): New functions.
7929         * config/m68k/netbsd-elf.h (FUNCTION_VALUE): Use m68k_function_value.
7930         (LIBCALL_VALUE): Use m68k_libcall_value.
7931         * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Define __mcfv4e__.
7932         (MASK_COLDFIRE): Add MASK_CFV4E.
7933         (TARGET_COLDFIRE_FPU, TARGET_HARD_FLOAT, TARGET_FP_REG_SIZE): New.
7934         (MODES_TIEABLE_P): Use TARGET_HARD_FLOAT.
7935         (REG_CLASS_FROM_LETTER, PREFERRED_RELOAD_CLASS): Ditto.
7936         (GO_IF_COLDFIRE_FPU_LEGITIMATE_ADDRESS): Define.
7937         (GO_IF_LEGITIMATE_ADDRESS): Use it.
7938         (LEGITIMIZE_ADDRESS): Handle ColdFire FPU addresses.
7939         * doc/invoke.tex: Document -mcfv4e on m68k.
7940
7941 2006-01-22  Ranjit Mathew  <rmathew@gcc.gnu.org>
7942
7943         * doc/contribute.texi: Change CVS to SVN and update the corresponding
7944         URL.
7945
7946 2006-01-21  Gabriel Dos Reis  <gdr@integrable-solutions.net>
7947
7948         PR c++/16190
7949         * c-opts.c (c_common_handle_option): Don't include
7950         -Wnon-virtual-dtor in -Wall; enable if -Weffc++.
7951         * doc/invoke.texi (C++ Dialect Options): Document that
7952         -Wnon-virtual-dtor is no longer included in -Wall.
7953
7954 2006-01-21  Joseph S. Myers  <joseph@codesourcery.com>
7955
7956         * gcov.c (print_version), gcov-dump.c (print_version),
7957         mips-tdump.c (main), mips-tfile.c (main): Update copyright notice
7958         dates.
7959
7960 2006-01-21  Kenneth Zadeck <zadeck@naturalbridge.com>
7961
7962         * df-scan.c (problem_SCAN): Added NULL reset function.
7963         (df_scan_reset_blocks): Added code to call reset block function
7964         (df_bb_refs_delete) Fixed comment.
7965         (df_insn_refs_delete): Made tolerant of deleting non existent info
7966         for dataflow problems that need to be reset.
7967         * df-core.c (df_set_blocks): Ditto.
7968         * df.h (struct df_problem): Added reset_fun.
7969         * df-problems.c (problem_RU, problem_RD, problem_LR, problem_UR,
7970         problem_UREC, problem_CHAIN, problem_RI): Initialized reset_fun field.
7971         (df_chain_insn_reset, df_chain_bb_reset, df_chain_reset): New
7972         functions to clear out all references to def-use or use-def chains.
7973
7974 2006-01-21  Ben Elliston  <bje@au.ibm.com>
7975
7976         * varasm.c (assemble_real): Initialise data array.
7977
7978 2006-01-20  Paul Brook  <paul@codesourcery.com>
7979
7980         Merge from csl-arm-branch.
7981         2005-09-21  Kazu Hirata  <kazu@codesourcery.com>
7982         * config/arm/arm.md (movdi): Force operands[1] to a register
7983         if we have a non-register source.
7984         (*arm_movdi, *movdf_soft_insn): Require that one of the
7985         operands be a register.
7986         * config/arm/iwmmxt.md (*iwmmxt_arm_movdi): Likewise.
7987         * config/arm/vfp.md (*arm_movdi_vfp, *movdf_vfp): Likewise.
7988
7989 2006-01-20  DJ Delorie  <dj@redhat.com>
7990
7991         * varasm.c (initialize_constant_valid_p): Allow pointers
7992         initialized from integer constants of lesser precision.
7993         (output_constant): Allow non-int-sized pointer modes to be
7994         initialized from integer constants.
7995
7996 2006-01-20  Joseph S. Myers  <joseph@codesourcery.com>
7997
7998         PR libstdc++/25524
7999         * cppdefault.h (struct default_include): Add multilib flag.
8000         * cppdefault.c (cpp_include_defaults): Set it.
8001         * c.opt (-imultilib): New option.
8002         * c-opts.c (imultilib): New.
8003         (c_common_handle_option): Handle -imultilib.
8004         (c_common_post_options): Likewise.
8005         * c-incpath.c (add_standard_paths, register_include_chains):
8006         Likewise.
8007         * c-incpath.h (register_include_chains): Add extra parameter.
8008         * gcc.c (do_spec_1): Generate -imultilib option.
8009         (The Specs Language): Update %I description.
8010         (process_command): Update copyright notice.
8011         * doc/cppopts.texi (-imultilib): Document.
8012         * doc/invoke.texi (-imultilib): Include in option summary.
8013         (%I): Update specs documentation.
8014
8015 2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>
8016
8017         * loop-iv.c (iv_analysis_loop_init): Use df in more conservative way.
8018
8019 2006-01-20  Richard Sandiford  <richard@codesourcery.com>
8020
8021         * stmt.c (case_bit_test_cmp): Stabilize the sort using code
8022         label numbers.
8023
8024 2006-01-20  Richard Guenther  <rguenther@suse.de>
8025         Steven Bosscher <stevenb.gcc@gmail.com>
8026
8027         PR rtl-optimization/24626
8028         * cfgloopmanip.c (lv_adjust_loop_entry_edge): Don't set
8029         EDGE_TRUE_VALUE if in RTL mode.
8030
8031         Revert
8032         2005-03-30 Mostafa Hagog <mustafa@il.ibm.com>
8033         * cfgrtl.c (rtl_verify_flow_info_1): Fix.
8034
8035 2006-01-20  Dirk Mueller  <dmueller@suse.com>
8036
8037         PR c++/5520
8038         * c-parser.c (c_parser_if_body): Use build_empty_stmt()
8039         instead of a special NOP marker.
8040         * c-typeck.c (c_finish_if_stmt): Remove obsoleted special
8041         NOP marker handling.
8042         * c-common.h (empty_body_warning): Add forward declaration.
8043         * c-common.c (empty_body_warning): Add (from c_finish_if_stmt).
8044         Now uses IS_EMPTY_STMT() instead of special NOP markers.
8045
8046 2006-01-20  Paul Brook  <paul@codesourcery.com>
8047
8048         * Makefile.in (lang_checks): Keep going if mkdir fails.
8049
8050 2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
8051
8052         * df-scan.c (df_scan_free_bb_info): Added basic block parameter to
8053         be able to clean out basic block when not necessary.
8054         (df_scan_free): Fixed to properly delete information if df is
8055         unused before calling df_finish.
8056         (df_scan_alloc, df_rescan_blocks, df_reg_chain_unlink,
8057         df_insn_create_insn_record, df_bb_refs_record): Fixed formatting
8058         or comment typos.
8059         (df_bb_refs_delete): New function.
8060         (df_refs_delete): Moved per block code to df_bb_refs_delete.
8061         * df-core.c (df_set_blocks): Added code to properly clean out
8062         unused blocks if they are not part of the blocks to consider.
8063         Added additional null check.
8064         (df_compact_blocks): Added basic block parameter to free_bb_fun to
8065         be able to clean out basic block when not necessary
8066         * df.h (df_free_bb_function): Ditto.
8067         (df_bb_refs_delete): New function.
8068         * df-problems.c (df_ru_free_bb_info, df_rd_set_bb_info,
8069         df_lr_set_bb_info, df_ur_free_bb_info, df_urec_free_bb_info):Added
8070         basic block parameter to be able to clean out basic block when not
8071         necessary.
8072         (df_ru_alloc, df_rd_alloc): Fixed dyslexic overflow test.
8073         (df_ru_free, df_rd_free, df_lr_free, df_ur_free, df_urec_free):
8074         Fixed to properly delete information if df is unused before
8075         calling df_finish.
8076
8077 2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
8078
8079         PR rtl-optimization/25799
8080         * df-problems.c (df_ru_confluence_n, df_rd_confluence_n):
8081         Corrected confluence operator to remove bits from op2 before oring
8082         with op1 rather than removing bits from op1.
8083         (df_ru_transfer_function): Corrected test on wrong bitmap which
8084         caused infinite loop.  Both of these problems were introduced in
8085         the dataflow rewrite.
8086
8087 2006-01-19  DJ Delorie  <dj@redhat.com>
8088
8089         * reload1.c (find_reload_regs): Note the details of reload
8090         failures in the dump file.
8091         (spill_failure): Likewise.
8092
8093 2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>
8094
8095         * loop-iv.c: Include df.h and hashtab.h.
8096         (enum iv_grd_result): New enum.
8097         (DF_REF_IV, DF_REF_IV_SET): New macros.
8098         (struct biv_entry): New.
8099         (df, bivs): New global variables.
8100         (struct insn_info, insn_info, last_def, bivs, max_insn_no, max_reg_no,
8101         assign_luids, mark_sets, kill_sets, mark_single_set, simple_set_p):
8102         Removed.
8103         (clear_iv_info, latch_dominating_def, record_iv, iv_analyze_expr,
8104         iv_analyze_result, iv_analyze_def, biv_hash, biv_eq,
8105         analyzed_for_bivness_p, record_biv): New functions.
8106         (iv_analysis_loop_init, iv_get_reaching_def, simple_reg_p,
8107         get_biv_step_1, get_biv_step, iv_analyze_biv, iv_analyze_op,
8108         iv_analyze, biv_p, iv_analysis_done): Work with df representation of
8109         UD chains.
8110         (iv_constant, iv_subreg, iv_extend, iv_mult, iv_shift): Do not set
8111         analysed.
8112         (iv_number_of_iterations): Use new interface to iv analysis.
8113         * loop-unroll.c: Do not include varray.h.
8114         (analyze_iv_to_split_insn): Use new interface to iv
8115         analysis.
8116         * loop-unswitch.c (may_unswitch_on): Ditto.
8117         * df.c (df_bitmaps_free): Only work for bbs for that structures are
8118         allocated.
8119         (df_bb_modify): Realloc tables to the new index.
8120         (df_find_use): New function.
8121         * df.h (df_find_use): Declare.
8122         * optabs.c (expand_unop): Make the mode of the REG_EQUAL node be
8123         outmode.
8124         * cfgloop.h (struct rtx_iv): Remove analysed field.
8125         (iv_get_reaching_def): Removed.
8126         (iv_analyze_result, iv_analyze_expr, iv_current_loop_df): Declare.
8127         * Makefile.in (loop-unroll.o): Remove VARRAY_H dependency.
8128         (loop-iv.o): Add df.h and hashtab.h dependency.
8129         * df-problems.c (df_ru_alloc, df_rd_alloc): Fix memory reallocation.
8130
8131 2006-01-20  Alan Modra  <amodra@bigpond.net.au>
8132
8133         PR target/25668
8134         * libgcc2.c (__floatdisf, __floatdidf): Don't use IBM Extended
8135         Double TFmode.
8136         (__floatundisf, __floatundidf): Likewise.
8137         * libgcc2.h (IS_IBM_EXTENDED): Define.
8138
8139 2006-01-19  DJ Delorie  <dj@redhat.com>
8140
8141         * config/m32c/m32c.h (REG_ALLOC_ORDER): Define.
8142
8143 2006-01-19  Paul Brook  <paul@codesourcery.com>
8144
8145         * gcc/config/arm/arm.c (arm_compute_func_type): Treat all functions
8146         as nothrow when unwinding tables are disabled.
8147
8148 2006-01-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
8149
8150         PR testsuite/25171
8151         * c-decl.c (check_bitfield_type_and_width): Don't issue pedwarn "type
8152         of bit-field" when in system header.
8153
8154 2006-01-19  DJ Delorie  <dj@redhat.com>
8155
8156         * config/m32c/m32c.c (m32c_prepare_shift): Add code to deal with
8157         the 16 bit shift limit of the m16c.
8158
8159 2006-01-19  Andrew Pinski  <pinskia@physics.uc.edu>
8160
8161         PR target/22099
8162         * config/i386/i386.md (builtin_setjmp_receiver): Don't emit the label.
8163         * config/i386/i386.c (output_set_got): Output the label if we have one
8164         for the TARGET_DEEP_BRANCH_PREDICTION case.
8165
8166 2006-01-19  Jan Hubicka  <jh@suse.cz>
8167             H.J. Lu  <hongjiu.lu@intel.com>
8168             Evandro Menezes <evandro.menezes@amd.com>
8169
8170         * invoke.texi (generic): Document
8171         (i686) Update.
8172         * config.gcc: Make x86_64-* and i686-* default to generic tunning.
8173         * i386.h (TARGET_GENERIC32, TARGET_GENERIC64, TARGET_GENERIC,
8174         TARGET_USE_INCDEC, TARGET_PAD_RETURNS): New macros.
8175         (x86_use_incdec, x86_pad_returns): New variables
8176         (TARGET_CPU_DEFAULT_generic): New constant
8177         (TARGET_CPU_DEFAULT_NAMES): Add generic.
8178         (enum processor_type): Add generic32 and generic64.
8179         * i386.md (cpu attribute): Add generic32/generic64
8180         (movhi splitter): Behave sanely when both partial_reg_dependency and
8181         partial_reg_stall are set.
8182         (K8 splitters): Enable for generic as well.
8183         * predicates.md (incdec_operand): Use TARGET_INCDEC
8184         (aligned_operand): Avoid memory mismatch stalls.
8185         * athlon.md: Enable for generic64, new patterns for 128bit moves.
8186         * ppro.md: Enable for generic32
8187         * i386.c (generic64_cost, generic32_cost): New.
8188         (m_GENERIC32, m_GENERIC64, m_GENERIC): New macros.
8189         (x86_use_leave): Enable for generic64.  (x86_use_sahf,
8190         x86_ext_80387_constants): Enable for generic32.  (x86_push_memory,
8191         x86_movx, x86_unroll_strlen, x86_deep_branch, x86_use_simode_fiop,
8192         x86_use_cltd, x86_promote_QImode, x86_sub_esp_4, x86_sub_esp_8,
8193         x86_add_esp_4, x86_add_esp_8, x86_integer_DFmode_moves,
8194         x86_partial_reg_dependency, x86_memory_mismatch_stall,
8195         x86_accumulate_outgoing_args, x86_prologue_using_move,
8196         x86_epilogue_using_move, x86_arch_always_fancy_math_387,
8197         x86_sse_partial_reg_dependency, x86_four_jump_limit, x86_schedule):
8198         Enable for generic.
8199         (x86_use_incdec, x86_pad_returns): New.
8200         (override_options): Add generic32 and generic64, translate "generic"
8201         to generic32/generic64 and "i686" to "generic32", refuse
8202         "generic32"/"generic64" as arch target.
8203         (ix86_issue_rate, ix86_adjust_cost): Handle generic as athlon.
8204         (ix86_reorg): Honor PAD_RETURNS.
8205
8206 2006-01-19  Diego Novillo  <dnovillo@redhat.com>
8207
8208         * tree-pretty-print.c (dump_generic_node): Handle
8209         OMP_PARALLEL_FN, OMP_PARALLEL_DATA_ARG and OMP_RETURN_EXPR.
8210         * cgraph.c (cgraph_expand_queue): Rename from
8211         cgraph_analyze_queue.  Update all users.
8212         * cgraphunit.c (cgraph_assemble_pending_functions): Process
8213         cgraph_expand_queue.
8214         (cgraph_expand_all_functions): Likewise.
8215         (cgraph_finalize_pending_functions): Remove.  Update callers.
8216
8217         * tree.h (OMP_DIRECTIVE_P): Define.
8218         (OMP_PARALLEL_FN): Define.
8219         (OMP_PARALLEL_DATA_ARG): Define.
8220         (OMP_SECTIONS_SECTIONS): Define.
8221         * tree-pass.h (pass_expand_omp): Declare.
8222         * omp-low.c (struct omp_region): Declare.
8223         (struct omp_context): Remove fields 'parallel_type',
8224         'parallel_start_ix' and 'parallel_start_additional_args'.
8225         Update all users.
8226         (struct omp_for_data): Rename from struct expand_omp_for_data.
8227         (omp_regions): New static variable.
8228         (root_omp_region): New static variable.
8229         (find_omp_clause): Make static.
8230         (is_in_combined_parallel_ctx): Remove.
8231         (is_combined_parallel): New.
8232         (extract_omp_for_data): Move earlier in the file.
8233         (workshare_safe_to_combine_p): New.
8234         (get_ws_args_for): New.
8235         (determine_parallel_type): Move earlier in the file.
8236         (omp_copy_decl_2): Do not set DECL_CONTEXT of new local to the
8237         child function.
8238         (omp_copy_decl): Likewise.
8239         (create_omp_child_function): Likewise.
8240         (lookup_omp_region): New.
8241         (dump_omp_region): New.
8242         (debug_omp_region): New.
8243         (debug_all_omp_regions): New.
8244         (new_omp_region): New.
8245         (scan_omp_parallel): If parallel_nesting_level > 1, the
8246         directive is nested within another parallel directive.
8247         Set OMP_PARALLEL_FN.
8248         (scan_omp_for): Do not try to handle combined parallel+for
8249         cases.
8250         Remove FIXME comment.
8251         (scan_omp_nested): Remove.
8252         (scan_omp_1): Do not call scan_omp_nested when
8253         parallel_nesting_level is > 1.
8254         Do not change the DECL_CONTEXT of local variables found.
8255         (lookup_decl_in_outer_ctx): New.
8256         (lower_rec_input_clauses): Rename from expand_rec_input_clauses.
8257         (lower_lastprivate_clauses): Rename from expand_lastprivate_clauses.
8258         (lower_reduction_clauses): Rename from expand_reduction_clauses.
8259         (lower_copyprivate_clauses): Rename from expand_copyprivate_clauses.
8260         If CTX is nested, lookup VAR in the outer context when
8261         building copy assignment.
8262         (lower_send_clauses): Rename from expand_send_clauses.
8263         If CTX is nested, lookup VAR in the outer context when
8264         building copy assignments.
8265         (lower_send_shared_vars): Rename from expand_send_shared_vars.
8266         If CTX is nested, lookup VAR in the outer context when
8267         building copy assignments.
8268         (expand_parallel_call): Rename from build_parallel_call.
8269         Handle combined parallel+workshare cases.
8270         Re-implement to emit code into the CFG.
8271         (list2chain): New.
8272         (expand_omp_parallel): Re-implement to emit code into the CFG.
8273         Call move_sese_region_to_fn to outline the sub-graph
8274         containing the parallel region.
8275         (expand_omp_for_1): Remove.
8276         (expand_omp_for_generic): Re-implement to emit code into the
8277         CFG.
8278         (expand_omp_for_static_nochunk): Likewise.
8279         (expand_omp_for_static_chunk): Likewise.
8280         (expand_omp_for): Likewise.
8281         (expand_omp_sections): Likewise.
8282         (remove_exit_barriers): New.
8283         (expand_omp_synch): New.
8284         (expand_omp): New.
8285         (build_omp_regions_1): New.
8286         (build_omp_regions): New.
8287         (execute_expand_omp): New.
8288         (gate_expand_omp): New.
8289         (pass_expand_omp): Define.
8290         (lower_omp_sections): Rename from expand_omp_sections.
8291         Set OMP_SECTIONS_SECTIONS.
8292         (lower_omp_single_simple): Rename from expand_omp_single_simple.
8293         (lower_omp_single_copy): Rename from expand_omp_single_copy.
8294         (lower_omp_single): Rename from expand_omp_simple.
8295         (lower_omp_master): Rename from expand_omp_master.
8296         (lower_omp_ordered): Rename from expand_omp_ordered.
8297         (lower_omp_critical): Rename from expand_omp_critical.
8298         (lower_omp_for_lastprivate): Rename from expand_omp_for_lastprivate.
8299         (lower_omp_for): Re-implement.
8300         (lower_omp_parallel): Re-implement.
8301         (lower_regimplify): Rename from expand_regimplify.
8302         (lower_omp_1): Rename from expand_omp_1.
8303         If there are syntax errors in the program, replace every
8304         OpenMP directive with NOP.
8305         Call lower_omp_* instead of expand_omp_*.
8306         (lower_omp): Rename from expand_omp.
8307
8308         * tree-gimple.c (is_gimple_stmt): Handle OMP_RETURN_EXPR.
8309         * tree-gimple.h (enum omp_parallel_type): Remove.
8310         (gimple_boolify): Declare extern.
8311         (find_omp_clause, determine_parallel_type): Remove.
8312
8313         * gimple-low.c (lower_omp_directive): New.
8314         (lower_stmt): Call it.
8315         (record_vars_into): Move from ...
8316         (record_vars): ... here.
8317         Call record_vars_into with current_function_decl.
8318
8319         * gimplify.c (struct gimplify_ctx): Remove fields
8320         combined_pre_p and combined_ctxp.  Update users.
8321         (get_formal_tmp_var): Add documentation.
8322         (gimple_boolify): Make extern.
8323         (gimplify_expr_in_ctx): Remove.  Update callers.
8324         (gimplify_omp_parallel): Do not assume that OMP_PARALLEL_BODY
8325         will always be a BIND_EXPR.
8326         (gimplify_expr): Handle OMP_RETURN_EXPR.
8327         * tree.def (BLOCK): Remove documentation about BLOCK_TYPE_TAGS.
8328         (OMP_PARALLEL): Add 3 operands.
8329         (OMP_SECTIONS): Add 1 operand.
8330         (OMP_RETURN_EXPR): Define.
8331
8332         * tree-inline.c (estimate_num_insns_1): Handle OpenMP directives.
8333         (copy_tree_r): Restore TREE_CHAIN in OMP_CLAUSE_*.
8334         * tree-iterator.c (alloc_stmt_list): Assert that we are not
8335         creating a circular free list.
8336         (free_stmt_list): Assert that we are not freeing stmt_list_cache.
8337
8338         * tree-flow.h (move_sese_region_to_fn): Declare.
8339         (record_vars_into): Declare.
8340         * tree-cfg.c (make_omp_sections_edges): New.
8341         (make_exit_edges): Handle OMP_PARALLEL, OMP_FOR, OMP_SINGLE,
8342         OMP_MASTER, OMP_ORDERED, OMP_CRITICAL, OMP_RETURN_EXPR,
8343         OMP_SECTIONS and OMP_SECTION.
8344         (is_ctrl_altering_stmt): Return true for OMP_DIRECTIVE_P.
8345         (set_bb_for_stmt): Undo change to check currently_expanding_to_rtl.
8346         (verify_stmt): Do not handle OMP_DIRECTIVE_P.
8347         (gather_blocks_in_sese_region): New.
8348         (struct move_stmt_d): Declare.
8349         (move_stmt_r): New.
8350         (move_block_to_fn): New.
8351         (move_sese_region_to_fn): New.
8352
8353         * passes.c (init_optimization_passes): Schedule
8354         pass_expand_omp after pass_init_datastructures.
8355
8356         * tree-ssa-operands.c (get_expr_operands): Handle
8357         OMP_PARALLEL, OMP_SECTIONS, OMP_FOR, OMP_RETURN_EXPR,
8358         OMP_SINGLE, OMP_MASTER, OMP_ORDERED, OMP_CRITICAL.
8359
8360 2006-01-19  Jeff Law  <law@redhat.com>
8361
8362         * tree-vrp.c (extract_range_from_assert): Refine the result range
8363         if the variable referenced by the ASSERT_EXPR has a range and
8364         either the tentative result range or the previous range is a
8365         VR_ANTI_RANGE.
8366
8367 2006-01-19  Richard Sandiford  <richard@codesourcery.com>
8368
8369         * c-decl.c (add_flexible_array_elts_to_size): Simplify vector accesses.
8370
8371 2006-01-19  Jan Hubicka  <jh@suse.cz>
8372
8373         * tree-vect-patterns.c (vect_pattern_recog_1): Prevent parse error.
8374
8375 2006-01-19  Paolo Bonzini  <bonzini@gnu.org>
8376
8377         * combine.c (try_combine): Do not worry about MEMs wrapped by USEs.
8378         (expand_compound_operation, expand_field_assignment): Fail if the
8379         bit lengths of an extract operation are out of range.
8380         (make_extraction): Compute wanted_inner_mode based on the position
8381         and length of the extraction.  Make it extraction_mode for non-constant
8382         positions, and do not modify offset in that case.  When generating a
8383         new MEM, use a mode that can hold the extraction while keeping correct
8384         alignment.  Remove code that supported MEMs wrapped by USEs.
8385         (simplify_shift_const_1, force_to_mode) <case USE>: Remove.
8386
8387 2006-01-19  Andreas Krebbel  <krebbel1@de.ibm.com>
8388
8389         * config/s390/s390.md ("Y", "y"): New mode attribute.
8390         ("*cmpdi_ccs", "*cmpsi_ccs", "*adddi3_imm_cc", "*adddi3_carry1_cc",
8391         "*adddi3_carry1_cconly", "*adddi3_carry2_cc", "*adddi3_carry2_cconly",
8392         "*adddi3_cc", "*adddi3_cconly", "*adddi3_cconly2", "*adddi3_64",
8393         "*addsi3_imm_cc", "*addsi3_carry1_cc",
8394         "*addsi3_carry1_cconly", "*addsi3_carry2_cc", "*addsi3_carr2_cconly",
8395         "*addsi3_cc", "*addsi3_cconly", "*addsi3_cconly2",
8396         "*subdi3_borrow_cc", "*subdi3_borrow_cconly", "*subdi3_cc",
8397         "*subdi3_cc2", "*subdi3_cconly", "*subdi3_cconly2", "*subdi3_64",
8398         "*subsi3_borrow_cc", "*subsi3_borrow_cconly", "*subsi3_cc",
8399         "*subsi3_cc2", "*subsi3_cconly", "*subsi3_cconly", "*subsi3_cconly2",
8400         "addsi3", "subsi3"): Insn patterns removed.
8401         ("*add<mode>3_carry1_cc", "*add<mode>3_carry1_cconly",
8402         "*add<mode>3_carry2_cc", "*add<mode>3_carry2_cconly", "*add<mode>3_cc",
8403         "*add<mode>3_cconly", "*add<mode>3_cconly2", "*add<mode>3_imm_cc",
8404         "*sub<mode>3_borrow_cc", "*sub<mode>3_borrow_cconly",
8405         "*sub<mode>3_cc", "*sub<mode>3_cc2", "*sub<mode>3_cconly",
8406         "*sub<mode>3_cconly2"): New insn patterns.
8407         ("addsi3", "subsi3"): New expanders.
8408
8409 2006-01-19  Dorit Nuzman  <dorit@il.ibm.com>
8410
8411         * Makefile.in (tree-vect-patterns.o): Add rule for new file.
8412         * tree-vect-analyze.c (vect_determine_vectorization_factor): Use
8413         existing STMT_VINFO_VECTYPE if available.
8414         (vect_mark_relevant): Add special handling for stmts that are
8415         marked as STMT_VINFO_IN_PATTERN_P.
8416         (vect_analyze_loop): Call vect_pattern_recog.
8417         * tree-vectorizer.c (new_stmt_vec_info): Initialize new fields.
8418         * tree-vectorizer.h (in_pattern_p, related_stmt): New fields in
8419         stmt_info.
8420         (STMT_VINFO_IN_PATTERN_P, STMT_VINFO_RELATED_STMT): New macros.
8421         (vect_recog_func_ptr): New function-pointer type.
8422         * tree-vect-patterns.c: New file.
8423         (vect_recog_widen_sum_pattern, vect_recog_widen_mult_pattern):
8424         (vect_recog_dot_prod_pattern, vect_pattern_recog):
8425         (vect_pattern_recog_1): New functions.
8426         (vect_pattern_recog_funcs): New array of function pointers.
8427
8428         * tree-vectorizer.h (ternary_op): New enum value.
8429         * tree-vect-transform.c (vect_create_epilog_for_reduction): Added
8430         declaration. Revised documentation. Removed redundant dump prints.
8431         Removed redundant argument. Added support for reduction patterns.
8432         (vectorizable_reduction): Added support for reduction patterns.
8433         (vect_transform_stmt): Added support for patterns.
8434
8435         * expr.c (expand_expr_real_1): Added case for DOT_PROD_EXPR.
8436         * genopinit.c (udot_prod_optab, sdot_prod_optab): Initialize.
8437         * optabs.c (optab_for_tree_code): Added case for DOT_PROD_EXPR.
8438         (expand_widen_pattern_expr): New function.
8439         (init_optabs): Initialize new optabs udot_prod_optab,
8440         sdot_prod_optab.
8441         * optabs.h (OTI_sdot_prod, OTI_udot_prod): New.
8442         (sdot_prod_optab, udot_prod_optab): Define new optabs.
8443         (expand_widen_pattern_expr): New function declaration.
8444         * tree.def (DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR): New
8445         tree-codes.
8446         * tree-inline.c (estimate_num_insns_1): Added cases for new
8447         tree-codes DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
8448         * tree-pretty-print.c (dump_generic_node): Likewise.
8449         (op_prio): Likewise.
8450         (op_symbol): Added cases for WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
8451         * tree-ssa-operands.c (get_expr_operands): Added case for
8452         DOT_PROD_EXPR.
8453         * tree-vect-patterns.c (widened_name_p): New function.
8454         (vect_recog_dot_prod_pattern): Added function implementation.
8455         * tree-vect-transform.c (get_initial_def_for_reduction): Added
8456         cases for DOT_PROD_EXPR, WIDEN_SUM_EXPR.
8457         * config/rs6000/altivec.md (udot_prod<mode>, sdot_prodv8hi): New.
8458         * config/i386/sse.md (sdot_prodv8hi, udot_prodv4si): New.
8459
8460         * expr.c (expand_expr_real_1): Added case for WIDEN_SUM_EXPR.
8461         * genopinit.c (widen_ssum_optab, widen_usum_optab): Initialize.
8462         * optabs.c (optab_for_tree_code): Added case for WIDEN_SUM_EXPR.
8463         (init_optabs): Initialize new optabs widen_ssum_optab,
8464         widen_usum_optab.
8465         * optabs.h (OTI_widen_ssum, OTI_widen_usum): New.
8466         (widen_ssum_optab, widen_usum_optab): Define new optabs.
8467         * tree-vect-generic.c: (expand_vector_operations_1): Check type of
8468         use instead of type of def.
8469         * tree-vect-patterns.c (vect_recog_widen_sum_pattern): Added
8470         function implementation.
8471         * config/rs6000/altivec.md (widen_usum<mode>, widen_ssumv16qi,
8472         widen_ssumv8hi): New.
8473
8474         * doc/tm.texi (ssum_widen, usum_widen, sdot_prod, udot_prod): New
8475         patterns.
8476
8477 2006-01-19  Richard Sandiford  <richard@codesourcery.com>
8478
8479         PR c/25805
8480         * c-decl.c (add_flexible_array_elts_to_size): New function.
8481         (finish_decl): Use it.
8482
8483 2006-01-18  Andrew Pinski  <pinskia@physics.uc.edu>
8484
8485         * diagnostic.h: Include options.h.
8486         * config/rs6000/x-darwin (host-ppc-darwin.o): Correct the
8487         dependancies for diagnostic.h.
8488         * Makefile.in (DIAGNOSTIC_H): Add options.h.
8489
8490 2006-01-16  Daniel Berlin  <dberlin@dberlin.org>
8491
8492         * tree-ssa-operands.h (ssa_call_clobbered_cache_valid): Remove.
8493         (ssa_ro_call_cache_valid): Ditto.
8494         * tree-ssa-alias.c (sort_tags_by_id): New function.
8495         (init_transitive_clobber_worklist): Ditto.
8496         (add_to_worklist): Ditto.
8497         (mark_aliases_call_clobbered): Ditto.
8498         (compute_tag_properties): Ditto.
8499         (set_initial_properties): Ditto.
8500         (compute_call_clobbered): Ditto.
8501         (compute_may_aliases):  Call compute_call_clobbered and grouping.
8502         (compute_flow_sensitive_aliasing): Remove clobbering related code.
8503         (compute_flow_insensitive_aliasing): Grouping now happens in our
8504         caller.
8505         (setup_pointers_and_addressables): Remove clobbering related code.
8506         (add_may_alias): Ditto.
8507         (replace_may_alias): Ditto.
8508         (get_nmt_for): Ditto.
8509         (create_global_var):
8510         (is_escape_site): Return an escape_type enumeration.
8511         * tree-flow-inline.h (is_call_clobbered):  Global var does not
8512         imply call clobbered.
8513         (mark_call_clobbered): Take a reason for marking this. Remove
8514         marking of globalness, and cache invalidation.
8515         (clear_call_clobbered): Remove cache invalidation code.
8516         * tree-dfa.c (dump_variable): If details is on, dump the reason
8517         for escaping.
8518         * tree-outof-ssa.c (create_temp): Copy escape mask from original
8519         variable.
8520         * tree-flow.h (struct ptr_info_def): Add escape mask member.
8521         (struct var_ann_d): Ditto.
8522         (enum escape_type): New.
8523         (mark_call_clobbered): Adjust prototype.
8524         * tree-ssa-structalias.c (update_alias_info): Unmodifiable vars
8525         are never call clobbered.
8526         Record reasons for escaping.
8527         * tree-ssa-structalias.h (is_escape_site): Update prototype.
8528         * tree-ssa-operands.c (ssa_call_clobbered_cache_valid): Remove.
8529         (ssa_ro_call_cache_valid): Ditto.
8530         (clobbered_v_may_defs): Ditto.
8531         (clobbered_vuses): Ditto.
8532         (ro_call_vuses): Ditto.
8533         (clobber_stats): New.
8534         (init_ssa_operands): Zero out clobber stats.
8535         (fini_ssa_operands): Print out clobber stats.
8536         (get_call_expr_operands): Pass callee fndecl to
8537         add_call_read_ops).
8538         (add_call_clobber_ops): Remove use of cache.
8539         Add use of PURE_CONST information.
8540         (add_call_read_ops): Remove use of cache.
8541         Add use of static not_read information.
8542
8543 2006-01-18  Alexandre Oliva  <aoliva@redhat.com>
8544
8545         Introduce TLS descriptors for i386 and x86_64.
8546         * config/i386/i386.h (TARGET_GNU2_TLS): New macro.
8547         (TARGET_ANY_GNU_TLS): New macro.
8548         (enum tls_dialect): Added TLS_DIALECT_GNU2.
8549         (struct machine_function): Add tls_descriptor_call_expanded_p.
8550         (ix86_tls_descriptor_calls_expande_in_cfun): New macro.
8551         (ix86_current_function_calls_tls_descriptor): Likewise.
8552         * config/i386/i386.c (ix86_tls_dialect): Fix typo in comment.
8553         (override_options): Introduce gnu2 tls dialect.
8554         (ix86_frame_pointer_required): Functions containing TLSCALLs are
8555         not leaves.
8556         (ix86_select_alt_pic_regnum, ix86_compute_frame_layout):
8557         Likewise.
8558         (legitimize_tls_address): Adjust logic for GNU2 TLS.
8559         (ix86_init_machine_status): Initialize new field.
8560         (ix86_tls_get_addr): Use TARGET_ANY_GNU_TLS.
8561         (ix86_tls_module_base): New.
8562         * config/i386/i386-protos.h (ix86_tls_module_base): Declare it.
8563         * config/i386/i386.md (UNSPEC_TLSDESC): New constant.
8564         (tls_global_dynamic_32, tls_global_dynamic_64): Handle GNU2 TLS.
8565         (tls_local_dynamic_base_32, tls_local_dynamic_base_64): Likewise.
8566         (tls_dynamic_gnu2_32, *tls_dynamic_lea_32): New patterns.
8567         (*tls_dynamic_call_32, *tls_dynamic_gnu2_combine_32): Likewise.
8568         (tls_dynamic_gnu2_64, *tls_dynamic_lea_64): Likewise.
8569         (*tls_dynamic_call_64, *tls_dynamic_gnu2_combine_64): Likewise.
8570         * config/i386/predicates.md (tls_modbase_operand): New.
8571         (tp_or_register_operand): New.
8572
8573 2006-01-18  Daniel Berlin  <dberlin@dberlin.org>
8574
8575         * ipa-reference.c (check_operand):  Allow FUNCTION_DECL.
8576         (look_for_address_of): Ditto.
8577         (ipa_init): Walk the function decls.
8578         (static_execute): Don't set readonly on FUNCTION_DECL's.
8579
8580 2006-01-18  Roger Sayle  <roger@eyesopen.com>
8581
8582         * config/i386/i386.md (shift spliter): Fix a a typo in the splitter
8583         for shifts where the source and destination registers are different.
8584
8585 2006-01-18  Paul Brook  <paul@codesourcery.com>
8586
8587         Merge from csl-arm-branch.
8588         2005-03-14  Julian Brown  <julian@codesourcery.com>
8589         * config/arm/lib1funcs.asm (ashldi3): Don't define on SymbianOS.
8590         (aeabi_llsl): Likewise.
8591         (ashrdi3): Likewise.
8592         (aeabi_lasr): Likewise.
8593         (lshrdi3): Likewise.
8594         (aeabi_llsr): Likewise.
8595         2005-03-10  Julian Brown  <julian@codesourcery.com>
8596         * config.gcc: Disable shared libgcc for SymbianOS.
8597         * config/arm/t-symbian (LIB2ADDEH): Include config/arm/pr-support.c.
8598
8599 2006-01-18  DJ Delorie  <dj@redhat.com>
8600
8601         * c-pragma.c (handle_pragma_diagnostic): New.
8602         (init_pragma): Register it.
8603         * doc/extend.texi: Document it.
8604
8605         * diagnostic.def: Add DK_UNSPECIFIED and DK_IGNORED.
8606         * diagnostic.h (diagnostic_classify_diagnostic): Declare.
8607         (diagnostic_context): Add classify_diagnostic[].
8608         * diagnostic.c (diagnostic_count_diagnostic): Don't count warnings
8609         as errors if they're overridden to DK_WARNING.
8610         (diagnostic_initialize): Initialize classify_diagnostic[].
8611         (diagnostic_set_kind_override): New.
8612         (diagnostic_report_diagnostic): Check for kind changes.
8613         * opts.c (common_handle_option): Take lang_mask.  Update callers.
8614         Handle OPT_Werror_.
8615         * common.opt (Werror=): New.
8616         * doc/invoke.texi: Document -Werror=*
8617
8618 2006-01-18  Jeff Law  <law@redhat.com>
8619
8620         * tree-vrp.c (test_for_singularity): Correct test for new
8621         min limit.  Use operand_equal_p rather than pointer equality
8622         for testing if new min/max values are equal.
8623
8624         * tree-ssa-propagate.c (substitute_and_fold): Delay simplifications
8625         using range information until after propagation and folding.
8626
8627 2006-01-18  Richard Henderson  <rth@redhat.com>
8628             Aldy Hernandez  <aldyh@redhat.com>
8629             Jakub Jelinek  <jakub@redhat.com>
8630             Diego Novillo  <dnovillo@redhat.com>
8631
8632         * omp-low.c: New file.
8633         * c-omp.c: New file.
8634
8635 2006-01-18  Richard Henderson  <rth@redhat.com>
8636             Jakub Jelinek  <jakub@redhat.com>
8637             Diego Novillo  <dnovillo@redhat.com>
8638
8639         * doc/invoke.texi: Document -fopenmp.
8640         * tree-dump.h (debug_function): Declare.
8641         * hooks.c (hook_bool_tree_bool_false): New function.
8642         (hook_tree_tree_null): Remove.
8643         (hook_tree_tree_tree_null): New.
8644         * hooks.h: Update to match.
8645         * tree-pretty-print.c (debug_tree_chain): New.
8646         (print_generic_expr): Handle TDF_CHAIN.
8647         (dump_generic_node): Handle BLOCK.
8648         Do not abort with incomplete SWITCH_EXPRs.
8649         Do not dump body of an OpenMP directive if TDF_SLIM is given.
8650         <case OMP_PARALLEL, OMP_FOR, OMP_SECTIONS>: Don't
8651         print space after directive name.
8652         <OMP_FOR>: Handle printing OMP_FOR_PRE_BODY.
8653         Handle OMP_MASTER and OMP_ORDERED.
8654         Handle printing of OMP_BODY just in one place, goto
8655         dump_omp_body in the rest of OMP_* nodes that have
8656         OMP_BODY.
8657         Don't handle clause nodes here.  Update omp statements to
8658         use dump_omp_clauses.
8659         Handle OMP_SINGLE, OMP_SECTIONS, OMP_SECTION,
8660         OMP_CLAUSE_ORDERED, OMP_CLAUSE_SCHEDULE, OMP_ATOMIC,
8661         OMP_CRITICAL, OMP_CLAUSE_NOWAIT, GOMP_CLAUSE_IF,
8662         GOMP_CLAUSE_NUM_THREADS, GOMP_FOR, GOMP_CLAUSE_SHARED,
8663         GOMP_CLAUSE_FIRSTPRIVATE, GOMP_CLAUSE_LASTPRIVATE,
8664         GOMP_CLAUSE_COPYIN and GOMP_CLAUSE_COPYPRIVATE.
8665         Adjust output for GOMP_PARALLEL.
8666         (dump_omp_clauses): New.
8667         (print_declaration): Dump DECL_VALUE_EXPR.
8668         (op_symbol_1): Split out of op_symbol.
8669         (dumping_stmts): Remove.  Update all users.
8670         * cgraph.c (cgraph_analyze_queue): New.
8671         (cgraph_add_new_function): New.
8672         * cgraph.h (cgraph_analyze_queue): Declare.
8673         (cgraph_add_new_function): Declare.
8674         (cgraph_lower_function): Remove.
8675         * tree.c (walk_tree): Walk OMP_CLAUSE_CHAIN of OMP_CLAUSE_*
8676         nodes.  Use switch for all nodes, handle most of IS_EXPR_CODE_CLASS
8677         and TYPE_P nodes in its default clause.
8678         (empty_body_p): New.
8679         (tree_range_check_failed): New.
8680         (build5_stat): New.
8681         * tree.h (OMP_CLAUSE_REDUCTION_INIT,
8682         OMP_CLAUSE_REDUCTION_MERGE,
8683         OMP_CLAUSE_REDUCTION_PLACEHOLDER,
8684         OMP_CLAUSE_PRIVATE_DEBUG,
8685         OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE, OMP_FOR_PRE_BODY,
8686         OMP_MASTER_BODY, OMP_ORDERED_BODY OMP_BODY,
8687         OMP_CLAUSES, OMP_CLAUSE_DECL, OMP_CLAUSE_DEFAULT_KIND,
8688         OMP_CLAUSE_CHAIN, OMP_CLAUSE_OUTER_DECL,
8689         OMP_CLAUSE_INNER_DECL, OMP_CLAUSE_NUM_THREADS_EXPR,
8690         OMP_CLAUSE_IF_EXPR, OMP_CLAUSE_SCHEDULE_CHUNK_EXPR,
8691         OMP_CLAUSE_SCHEDULE_CHUNK_SIZE. OMP_PARALLEL_VAR_INIT,
8692         OMP_PARALLEL_VAR_REDUC, OMP_FOR_VAR_INIT,
8693         OMP_FOR_VAR_LAST, OMP_FOR_VAR_REDUC,
8694         OMP_SECTIONS_VAR_INIT, OMP_SECTIONS_VAR_LAST,
8695         OMP_SECTIONS_VAR_REDUC, OMP_CLAUSE_REDUCTION_CODE
8696         OMP_SINGLE_CLAUSES, OMP_SINGLE_BODY,
8697         OMP_CLAUSE_SCHEDULE_CHUNK_SIZE, OMP_SECTION_BODY,
8698         OMP_CRITICAL_NAME, OMP_CRITICAL_BODY): New.
8699         (TREE_RANGE_CHECK): New.
8700         (empty_body_p): Declare.
8701         (enum omp_clause_default_kind): New.
8702         (build_string_literal): Declare.
8703         (enum omp_clause_schedule_kind, OMP_CLAUSE_SCHEDULE_KIND): New.
8704         (build5_stat, build5): Declare.
8705         * tree-pass.h (TDF_CHAIN): Define.
8706         * tree-pass.h (PROP_gimple_lomp): Define.
8707         (pass_lower_omp): Declare.
8708         * diagnostic.h (debug_tree_chain): Declare.
8709         * builtins.c (get_builtin_sync_mode): Use 0 as last argument to
8710         mode_for_size.
8711         (expand_builtin): Handle sync BUILT_IN_*_16 builtins.
8712         * builtins.c (build_string_literal): Make extern.
8713         * gcc.c (include_spec_function): New.
8714         (static_spec_functions): Add it.
8715         (main): Move load of libgomp.spec ...
8716         (LINK_COMMAND_SPEC): ... here.
8717         (link_gomp_spec): New.
8718         (static_specs): Include it.
8719         (LINK_COMMAND_SPEC): Add link_gomp.
8720         (GOMP_SELF_SPECS): New.
8721         (driver_self_specs): Include it.
8722         (switch_matches): Don't mark inline.
8723         (main): Load libgomp.spec.
8724         * tree-gimple.c (is_gimple_stmt): True for OMP_MASTER,
8725         OMP_ORDERED, OMP_CRITICAL, OMP_SECTIONS, OMP_SECTION,
8726         and OMP_SINGLE, OMP_FOR and OMP_PARALLEL.
8727         * tree-gimple.h (enum omp_parallel): Declare.
8728         (determine_parallel_type): Declare.
8729         (omp_firstprivatize_variable): Declare.
8730         (omp_reduction_init): Declare.
8731         (diagnose_omp_structured_block_errors): Declare.
8732         (struct walk_stmt_info): Add want_return_expr.
8733         (struct walk_stmt_info): Add want_bind_expr, want_locations.
8734         (find_omp_clause): Declare.
8735         (insert_field_into_struct): Declare.
8736         (struct walk_stmt_info): Move from tree-nested.c
8737         (walk_stmts): Declare.
8738         * c-cppbuiltin.c (c_cpp_builtins): If -fopenmp, #define _OPENMP
8739         to 200505.
8740         * cgraphunit.c (cgraph_lower_function): Make static.
8741         (cgraph_finalize_pending_functions): New.
8742         (cgraph_finalize_function): Call it.
8743         (cgraph_finalize_compilation_unit): Likewise.
8744         * builtin-types.def (BT_I16, BT_FN_I16_VPTR_I16,
8745         BT_FN_BOOL_VPTR_I16_I16, BT_FN_I16_VPTR_I16_I16): Add.
8746         (BT_FN_UINT_UINT): New.
8747         (DEF_FUNCTION_TYPE_6, DEF_FUNCTION_TYPE_7,
8748         DEF_FUNCTION_TYPE_VAR_4): Document.
8749         (BT_PTR_LONG, BT_PTR_PTR, BT_FN_BOOL, BT_FN_INT,
8750         BT_FN_VOID_PTRPTR, BT_PTR_FN_VOID_PTR,
8751         BT_FN_BOOL_LONGPTR_LONGPTR, BT_FN_VOID_OMPFN_PTR_UINT,
8752         BT_FN_VOID_OMPFN_PTR_UINT_UINT,
8753         BT_FN_BOOL_LONG_LONG_LONG_LONGPTR_LONGPTR,
8754         BT_FN_BOOL_LONG_LONG_LONG_LONG_LONGPTR_LONGPTR,
8755         BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG,
8756         BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG_LONG): New.
8757         * builtins.def: Update DEF_BUILTIN comment to include COND argument.
8758         Move all DEF_SYNC_BUILTIN () and DEF_GOMP_BUILTIN () builtins
8759         into separate files.
8760         (DEF_GOMP_BUILTIN): New.
8761         (BUILT_IN_OMP_GET_THREAD_NUM, BUILT_IN_GOMP_BARRIER,
8762         BUILT_IN_GOMP_CRITICAL_START, BUILT_IN_GOMP_CRITICAL_END,
8763         BUILT_IN_GOMP_CRITICAL_NAME_START, BUILT_IN_GOMP_CRITICAL_NAME_END,
8764         BUILT_IN_GOMP_LOOP_STATIC_START, BUILT_IN_GOMP_LOOP_DYNAMIC_START,
8765         BUILT_IN_GOMP_LOOP_GUIDED_START, BUILT_IN_GOMP_LOOP_RUNTIME_START,
8766         BUILT_IN_GOMP_LOOP_ORDERED_STATIC_START,
8767         BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_START,
8768         BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_START,
8769         BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_START,
8770         BUILT_IN_GOMP_LOOP_STATIC_NEXT, BUILT_IN_GOMP_LOOP_DYNAMIC_NEXT,
8771         BUILT_IN_GOMP_LOOP_GUIDED_NEXT, BUILT_IN_GOMP_LOOP_RUNTIME_NEXT,
8772         BUILT_IN_GOMP_LOOP_ORDERED_STATIC_NEXT,
8773         BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_NEXT,
8774         BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_NEXT,
8775         BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_NEXT,
8776         BUILT_IN_GOMP_PARALLEL_LOOP_STATIC_START,
8777         BUILT_IN_GOMP_PARALLEL_LOOP_DYNAMIC_START,
8778         BUILT_IN_GOMP_PARALLEL_LOOP_GUIDED_START,
8779         BUILT_IN_GOMP_PARALLEL_LOOP_RUNTIME_START,
8780         BUILT_IN_GOMP_LOOP_END, BUILT_IN_GOMP_LOOP_END_NOWAIT,
8781         BUILT_IN_GOMP_ORDERED_START, BUILT_IN_GOMP_ORDERED_END,
8782         BUILT_IN_GOMP_PARALLEL_START, BUILT_IN_GOMP_PARALLEL_END,
8783         BUILT_IN_GOMP_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_NEXT,
8784         BUILT_IN_GOMP_PARALLEL_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_END,
8785         BUILT_IN_GOMP_SECTIONS_END_NOWAIT, BUILT_IN_GOMP_SINGLE_START,
8786         BUILT_IN_GOMP_SINGLE_COPY_START, BUILT_IN_GOMP_SINGLE_COPY_END): New.
8787         * sync-builtins.def: New file, moved from builtins.def.
8788         * omp-builtins.def: New file, moved from builtins.def.
8789         * c-objc-common.h (LANG_HOOKS_OMP_PREDETERMINED_SHARING): Redefine.
8790         * gimple-low.c (lower_function_body): Clear data.
8791         (lower_stmt): Do not handle COMPOUND_EXPR.
8792         Remove call to print_node_brief.
8793         * c-tree.h (c_finish_omp_clauses): New prototype.
8794         (C_DECL_THREADPRIVATE_P): Define.
8795         (lookup_name_no_remap, c_omp_remap_private): Remove
8796         (c_begin_omp_parallel, c_finish_omp_parallel): Update.
8797         (check_for_loop_decls): Update decl.
8798         (lookup_name_no_remap, c_omp_remap_private): Declare.
8799         (build_indirect_ref, build_modify_expr, pushdecl,
8800         pushdecl_top_level): Move to c-common.h.
8801         * dwarf2out.c (loc_descriptor_from_tree_1): Don't set unsignedp
8802         before the switch, but just in the 2 places that need it.
8803         * c-decl.c (diagnose_mismatched_decls): Do not check for
8804         mismatched thread-local attributes when OLDDECL is marked
8805         threadprivate and NEWDECL has no thread-local attributes.
8806         (merge_decls): Merge C_DECL_THREADPRIVATE_P.
8807         (c_gimple_diagnostics_recursively): Rename from
8808         c_warn_unused_result_recursively.  Invoke
8809         diagnose_omp_structured_block_errors.
8810         (check_for_loop_decls): Return a singular decl found.
8811         * langhooks.c (lhd_omp_predetermined_sharing): Return
8812         OMP_CLAUSE_DEFAULT_SHARED for DECL_ARTIFICIAL decls.
8813         (lhd_omp_firstprivatize_type_sizes): New.
8814         (lhd_omp_assignment): New.
8815         (lhd_omp_predetermined_sharing): New.
8816         * langhooks.h (struct gimplify_omp_ctx): Forward declare.
8817         (struct lang_hooks_for_types): Add
8818         omp_firstprivatize_type_sizes, omp_privatize_by_reference,
8819         omp_predetermined_sharing, omp_disregard_value_expr,
8820         omp_private_debug_clause, omp_clause_default_ctor,
8821         omp_clause_copy_ctor, omp_clause_assign_op, omp_clause_dtor.
8822         (c_finish_omp_clauses): New.
8823         (c_finish_bc_stmt): Diagnose break within omp for.
8824         (c_begin_omp_parallel, c_finish_omp_parallel): New.
8825         (build_unary_op): Return error_mark after reporting
8826         a readonly_error.
8827         (build_modify_expr): Likewise.
8828         * gimplify.c: Include optabs.h and pointer-set.h.
8829         (enum gimplify_omp_var_data): Declare.
8830         (struct gimplify_omp_ctx): Declare.
8831         (struct gimplify_ctx): Add fields prev_context, combined_pre_p
8832         and combined_ctxp.
8833         (gimplify_ctxp, gimplify_omp_ctxp): New local variables.
8834         (push_gimplify_context, pop_gimplify_context): Allow nesting.
8835         (splay_tree_compare_decl_uid): New.
8836         (new_omp_context): New.
8837         (delete_omp_context): New.
8838         (gimple_add_tmp_var): Call omp_add_variable.
8839         (gimplify_bind_expr): Likewise.
8840         (gimplify_var_or_parm_decl): If omp_notice_variable returned
8841         true, disregard DECL_VALUE_EXPR on the decl if any.
8842         (gimplify_expr_in_ctx): New.
8843         (omp_firstprivatize_variable, omp_firstprivatize_type_sizes
8844         omp_add_variable, omp_notice_variable, omp_is_private
8845         gimplify_scan_omp_clauses, gimplify_adjust_omp_clauses_1
8846         gimplify_adjust_omp_clauses, gimplify_omp_parallel
8847         gimplify_omp_for, gimplify_omp_workshare, goa_lhs_expr_p
8848         gimplify_omp_atomic_fetch_op, goa_stabilize_expr
8849         gimplify_omp_atomic_pipeline, gimplify_omp_atomic_mutex
8850         gimplify_omp_atomic): New.
8851         (gimplify_expr): Handle OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
8852         OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
8853         OMP_CRITICAL and OMP_ATOMIC.
8854         (gimplify_body): Verify gimplify_ctxp is empty after gimplification.
8855         * c-pragma.h (enum pragma_kind): Add
8856         PRAGMA_OMP_ATOMIC, PRAGMA_OMP_BARRIER,
8857         PRAGMA_OMP_CRITICAL, PRAGMA_OMP_FLUSH, PRAGMA_OMP_FOR,
8858         PRAGMA_OMP_MASTER, PRAGMA_OMP_ORDERED,
8859         PRAGMA_OMP_PARALLEL, PRAGMA_OMP_PARALLEL_FOR,
8860         PRAGMA_OMP_PARALLEL_SECTIONS, PRAGMA_OMP_SECTION,
8861         PRAGMA_OMP_SECTIONS, PRAGMA_OMP_SINGLE,
8862         PRAGMA_OMP_THREADPRIVATE.
8863         * tree.def (OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
8864         OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
8865         OMP_CRITICAL, OMP_ATOMIC, OMP_CLAUSE_PRIVATE,
8866         OMP_CLAUSE_SHARED, OMP_CLAUSE_FIRSTPRIVATE,
8867         OMP_CLAUSE_LASTPRIVATE, OMP_CLAUSE_REDUCTION,
8868         OMP_CLAUSE_COPYIN, OMP_CLAUSE_COPYPRIVATE,
8869         OMP_CLAUSE_IF, OMP_CLAUSE_NUM_THREADS,
8870         OMP_CLAUSE_SCHEDULE, OMP_CLAUSE_NOWAIT,
8871         OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Define.
8872         * print-tree.c (print_node): Dump DECL_VALUE_EXPR.
8873         * tree-ssa-dce.c (find_control_dependence): Do not assume that
8874         ENTRY_BLOCK_PTR->next_bb == single_succ (ENTRY_BLOCK_PTR).
8875         * tree-nested.c (convert_call_expr): Call walk_body on OMP_BODY for
8876         OpenMP directives.
8877         (struct nesting_info): Add field_map,
8878         suppress_expansion, debug_var_chain.
8879         (create_nesting_tree): Initialize them.
8880         (lookup_field_for_decl): Use field_map.
8881         (get_nonlocal_debug_decl, get_local_debug_decl): New.
8882         (convert_local_omp_clauses): New.
8883         (finalize_nesting_tree_1): Add debug_var_chain to toplevel block.
8884         (walk_body): Split out of walk_function.
8885         (convert_nonlocal_omp_clauses, convert_local_omp_clauses): New.
8886         (convert_nonlocal_reference): Handle omp statements.
8887         (convert_local_reference): Likewise.
8888         (unnest_nesting_tree_1): Split out of finalize_nesting_tree_1.
8889         (unnest_nesting_tree): New.
8890         (lower_nested_functions): Call it.
8891         (insert_field_into_struct): Make extern.
8892         (struct walk_stmt_info): Move to tree-gimple.h.
8893         (walk_stmts): Make extern.
8894         * omp-builtins.def: New file.
8895         * tree-iterator.c (expr_only): Clarify comment.
8896         * c-common.h (pushdecl_top_level, pushdecl,
8897         build_modify_expr, build_indirect_ref,
8898         c_finish_omp_master, c_finish_omp_critical,
8899         c_finish_omp_ordered, c_finish_omp_barrier,
8900         c_finish_omp_atomic, c_finish_omp_flush,
8901         c_finish_omp_for, c_split_parallel_clauses,
8902         omp_clause_default_kind, c_omp_sharing_predetermined,
8903         c_omp_remap_decl): Declare.
8904         * Makefile.in (BUILTINS_DEF): Add omp-builtins.def.
8905         (OBJS-common): Add omp-low.o.
8906         (c-omp.o, omp-low.o): Add.
8907         (gimplify.o): Add dependency on $(OPTABS_H).
8908         (GTFILES): Add omp-low.c.
8909         (gt-stringpool.h): Add.
8910         * tree-cfg.c (set_bb_for_stmt): Do not update the
8911         block-to-labels map if we are currently expanding to RTL.
8912         (tree_node_can_be_shared): Remove unnecessary CONSTANT_CLASS_P
8913         checks.
8914         Handle IDENTIFIER_NODE.
8915         (tree_verify_flow_info): Do not ICE when emitting error
8916         messages about invalid labels.
8917         (dump_function_to_file): Reset CFUN before emitting the body
8918         of the function.
8919         (debug_function): New.
8920         * passes.c (init_optimization_passes): Schedule
8921         pass_lower_omp.
8922         * langhooks-def.h (lhd_omp_predetermined_sharing,
8923         lhd_omp_assignment, lhd_omp_firstprivatize_type_sizes):
8924         Declare.
8925         (LANG_HOOKS_OMP_FIRSTPRIVATIZE_TYPE_SIZES): Define.
8926         (LANG_HOOKS_FOR_TYPES_INITIALIZER): Use it.
8927         (LANG_HOOKS_OMP_PRIVATIZE_BY_REFERENCE,
8928         LANG_HOOKS_OMP_PREDETERMINED_SHARING,
8929         LANG_HOOKS_OMP_DISREGARD_VALUE_EXPR,
8930         LANG_HOOKS_OMP_PRIVATE_DEBUG_CLAUSE,
8931         LANG_HOOKS_OMP_CLAUSE_DEFAULT_CTOR,
8932         LANG_HOOKS_OMP_CLAUSE_COPY_CTOR,
8933         LANG_HOOKS_OMP_CLAUSE_ASSIGN_OP,
8934         LANG_HOOKS_OMP_CLAUSE_DTOR): Define.
8935         (LANG_HOOK_DECLS): Use them.
8936
8937 2006-01-18  Dmitry Kurochkin <dmitry.kurochkin@gmail.com>
8938             Richard Henderson  <rth@redhat.com>
8939             Jakub Jelinek  <jakub@redhat.com>
8940             Diego Novillo  <dnovillo@redhat.com>
8941
8942         * c-parser.c (pragma_omp_clause): Define.
8943         (c_parser_declaration_or_fndef): Document OpenMP syntax.
8944         (c_parser_compound_statement): Likewise.
8945         (c_parser_statement): Likewise.
8946         (c_parser_pragma): Handle omp pragmas.
8947         (OMP_FOR_CLAUSE_MASK, OMP_SECTIONS_CLAUSE_MASK,
8948         OMP_PARALLEL_CLAUSE_MASK, OMP_SINGLE_CLAUSE_MASK): Define.
8949         (c_parser_omp_clause_name, check_no_duplicate_clause,
8950         c_parser_omp_variable_list,
8951         c_parser_omp_var_list_parens, c_parser_omp_clause_copyin,
8952         c_parser_omp_clause_copyprivate,
8953         c_parser_omp_clause_default,
8954         c_parser_omp_clause_firstprivate, c_parser_omp_clause_if,
8955         c_parser_omp_clause_lastprivate,
8956         c_parser_omp_clause_nowait,
8957         c_parser_omp_clause_num_threads,
8958         c_parser_omp_clause_ordered, c_parser_omp_clause_private,
8959         c_parser_omp_clause_reduction,
8960         c_parser_omp_clause_schedule, c_parser_omp_clause_shared,
8961         c_parser_omp_all_clauses, c_parser_omp_structured_block,
8962         c_parser_omp_atomic, c_parser_omp_barrier,
8963         c_parser_omp_critical, c_parser_omp_flush,
8964         c_parser_omp_for_loop, c_parser_omp_for,
8965         c_parser_omp_master, c_parser_omp_ordered,
8966         c_parser_omp_sections_scope, c_parser_omp_sections,
8967         c_parser_omp_parallel, c_parser_omp_single,
8968         c_parser_omp_construct, c_parser_omp_threadprivate): New.
8969         * c-pragma.c (init_pragma): Do omp pragma registration here.
8970         * c.opt (fopenmp): New flag.
8971
8972 2006-01-18  Eric Christopher  <echristo@apple.com>
8973
8974         * gcc.c (GOMP_SELF_SPECS): Bracket in #ifndef/#endif.
8975         * config/darwin.h (GOMP_SELF_SPECS): Define.
8976
8977 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
8978
8979         * rtl.h: Remove the prototype for reg_alloc.
8980
8981 2006-01-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
8982
8983         PR target/25731
8984         * config.gcc (hppa*-*-linux*, hppa[12]*-*-hpux10*, hppa*64*-*-hpux11*,
8985         hppa[12]*-*-hpux11*): Override default shared libgcc version for both
8986         sjlj and dwarf2 exception handling.
8987         * pa/t-hpux-shlib (SHLIB_SOVERSION): New make variable.
8988         Rework to allow overriding SHLIB_EXT and SHLIB_SOVERSION.
8989         * pa/pa.c (function_value): Treat complex and vector types as
8990         aggregates.
8991         (function_arg): Likewise.  Only pass scalar floats in the floating
8992         point argument registers.
8993         * pa/t-slibgcc-dwarf-ver: New file.
8994         * pa/t-slibgcc-sjlj-ver: New file.
8995         * pa/t-slibgcc-elf-ver: Delete file.
8996
8997 2006-01-19  Alan Modra  <amodra@bigpond.net.au>
8998
8999         * config/rs6000/rs6000.c (rs6000_assemble_integer): Correct
9000         unlikely_test_section_p test.
9001
9002 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
9003
9004         * mode-switching.c (optimize_mode_switching): Make it static.
9005         * basic-block.h: Remove the prototype for
9006         optimize_mode_switching.
9007
9008         * modulo-sched.c (sms_schedule): Make it static.
9009         * rtl.h: Remove the prototype for sms_schedule.
9010
9011         * postreload-gcse.c (gcse_after_reload_main): Make it static.
9012         * rtl.h: Remove the prototype for gcse_after_reload_main.
9013
9014         * reg-stack.c (reg_to_stack): Make it static.
9015         * rtl.h: Remove the prototype for reg_to_stack.
9016
9017         * regrename.c (regrename_optimize, copyprop_hardreg_forward):
9018         Make them static.
9019         * rtl.h: Remove the prototypes for regrename_optimize and
9020         copyprop_hardreg_forward.
9021
9022 2006-01-18  Eric Botcazou  <ebotcazou@adacore.com>
9023
9024         * config/alpha/alpha.c (alpha_split_tfmode_pair): Rename into
9025         alpha_split_tmode_pair.  Add 'mode' and 'fixup_overlap' arguments.
9026         Test against the appropriate null constant for the mode.
9027         If 'fixup_overlap' is true, swap the operands if they overlap.
9028         (alpha_split_tfmode_frobsign): Adjust call to alpha_split_tfmode_pair.
9029         * config/alpha/alpha-protos.h (alpha_split_tfmode_pair): Rename into
9030         alpha_split_tmode_pair and adjust for above change.
9031         * config/alpha/alpha.md (movtf_internal): Adjust call to
9032         alpha_split_tfmode_pair and rely on it to swap the operands.
9033         (movti_internal): New insn and post-reload splitter.
9034         (movti): New expander.
9035
9036 2006-01-18  Philippe De Muyter  <phdm@macqel.be>
9037
9038         * config/m68k/m68k.md (*addsi3_5200): Allow addq/subq to memory
9039         operands.
9040
9041 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
9042
9043         * rtlanal.c (global_reg_mentioned_p_1,
9044         global_reg_mentioned_p): Remove.
9045         * rtl.h: Remove the prototype for global_reg_mentioned_p.
9046
9047         * flow.c (initialize_uninitialized_subregs): Make it static.
9048         * rtl.h: Remove the prototype for
9049         initialize_uninitialized_subregs.
9050
9051         * function.c (instantiate_virtual_regs): Make it static.
9052         * function.h: Remove the prototype for
9053         instantiate_virtual_regs.
9054
9055         * regmove.c (regmove_optimize, combine_stack_adjustments):
9056         Make them static.
9057         * rtl.h: Remove the prototypes for regmove_optimize and
9058         combine_stack_adjustments.
9059
9060 2006-01-17  Roger Sayle  <roger@eyesopen.com>
9061
9062         * config/i386/i386.c (COSTS_N_BYTES): New macro.
9063         (size_cost): Encode costs in bytes so that a reg-reg addition is
9064         equivalent to COSTS_N_INSNS(1).
9065         (override_options): Use the size_cost.branch_cost as the default
9066         ix86_branch_cost when optimizing for size.
9067
9068 2006-01-18  Ben Elliston  <bje@au.ibm.com>
9069
9070         * Makefile.in (D32PBIT_FUNCS): New.
9071         (D64PBIT_FUNCS, D128PBIT_FUNCS): Likewise.
9072         (libgcc.mk): Set D32PBIT, D64PBIT, D128PBIT, D32PBIT_FUNCS,
9073         D64PBIT_FUNCS and D128PBIT_FUNCS.
9074         (LIBGCC_DEPS): Include $(D32PBIT), $(D64PBIT), $(D128PBIT).
9075         * mklibgcc.in Bring in the DFP support code if D32PBIT, D64PBIT or
9076         D128PBIT are set.
9077         (decnumber_dep): Define.
9078         * doc/libgcc.texi (Decimal float library routines): New node.
9079         * config/dfp-bit.h, config/dfp-bit.c: New files.
9080
9081 2006-01-18  Ben Elliston  <bje@au.ibm.com>
9082
9083         * expr.c (emit_move_change_mode): Always adjust addresses, not
9084         just during reload.  Copy replacements only during reload.
9085         (emit_move_insn_1): Move MODE_DECIMAL_FLOAT modes by invoking
9086         emit_move_via_integer.
9087
9088 2006-01-17  Shantonu Sen  <ssen@opendarwin.org>
9089
9090         * Makefile.in (check-%, check-consistency): Use $${srcdir}
9091         instead of $(srcdir) and ${srcdir}.
9092
9093 2006-01-17  Richard Earnshaw  <rearnsha@arm.com>
9094
9095         PR target/592
9096         PR middle-end/11135
9097         * arm.h (struct machine_function): Add pic_reg.
9098         * arm.c (arm_pic_register): Make unsigned.
9099         (arm_override_options): Only set arm_pic_register if
9100         TARGET_SINGLE_PIC_BASE.
9101         (use_return_insn): Only test for a pic register if it is fixed.
9102         (arm_compute_save_reg0_reg12_mask): Likewise.
9103         (thumb_compute_save_reg_mask): Likewise.
9104         (legitimate_pic_operand): Factor out some known invariants.
9105         (legitimize_pic_address): If we don't have a fixed pic register,
9106         then set up a pseudo in the function entry sequence.  Handle the
9107         pic base being in a pseudo.
9108         (arm_load_pic_register): Handle the pic register being in a pseudo.
9109         (arm_expand_prologue): Only set up the pic register if it is fixed.
9110         (thumb_expand_prologue): Likewise.
9111         * arm.md (pic_load_addr_based): Handle the pic base being a pseudo.
9112         (pic_load_addr_based_insn): Likewise.
9113         (builtin_setjmp_receiver): Don't restore the pic base if it isn't
9114         fixed.
9115
9116 2006-01-18  Ben Elliston  <bje@au.ibm.com>
9117
9118         * config/rs6000/rs6000.c (rs6000_hard_regno_mode_ok): Reject
9119         decimal float modes for all floating point registers.
9120
9121         * config/rs6000/predicates.md (reg_or_mem_operand): Pair up
9122         match_code "mem" with match_test "macho_lo_sum_memory_operand".
9123
9124 2006-01-17  Jakub Jelinek  <jakub@redhat.com>
9125
9126         PR c/25682
9127         * c-typeck.c (build_unary_op): Fold offsetof-like expressions
9128         even when the pointer is not NULL.
9129
9130 2006-01-16  Ian Lance Taylor  <ian@airs.com>
9131
9132         * common.opt (ftoplevel-reorder): New option.
9133         * cgraph.c (cgraph_asm_nodes): New global variable.
9134         (cgraph_asm_last_node): New static variable.
9135         (cgraph_order): New global variable.
9136         (cgraph_create_node): Set new order field.
9137         (cgraph_varpool_node): Likewise.
9138         (decide_is_variable_needed): Return true if not
9139         flag_toplevel_reorder.
9140         (cgraph_add_asm_node): New function.
9141         * cgraph.h (struct cgraph_node): Add order field.
9142         (struct cgraph_varpool_node): Add order field.
9143         (struct cgraph_asm_node): Define.
9144         (cgraph_asm_nodes, cgraph_order): Declare.
9145         (cgraph_add_asm_node): Declare.
9146         * cgraphunit.c (cgraph_varpool_assemble_decl): New static
9147         function.
9148         (cgraph_varpool_assemble_pending_decls): Call it.
9149         (cgraph_output_pending_asms): New static function.
9150         (cgraph_finalize_compilation_unit): Call it.
9151         (struct cgraph_order_sort): Define.
9152         (cgraph_output_in_order): New static function.
9153         (cgraph_optimize): Call cgraph_output_pending_asms.  Add code for
9154         !flag_toplevel_reorder case.
9155         * c-parser.c: Include "cgraph.h".
9156         (c_parser_asm_definition): Call cgraph_add_asm_node rather than
9157         assemble_asm.
9158         * Makefile.in (CRTSTUFF_CFLAGS): Use -fno-toplevel-reorder rather
9159         than -fno-unit-at-a-time.
9160         * doc/invoke.texi (Option Summary): Mention
9161         -fno-toplevel-reorder.
9162         (Optimize Options): Document -fno-toplevel-reorder.  Mention it in
9163         -funit-at-a-time documentation.
9164
9165 2006-01-17  Hans-Peter Nilsson  <hp@axis.com>
9166             Kazu Hirata  <kazu@codesourcery.com>
9167
9168         * Makefile.in (FUNCTION_H, LAMBDA_H): Use $(TREE_H), not tree.h.
9169
9170 2006-01-17  Kazu Hirata  <kazu@codesourcery.com>
9171
9172         * Makefile.in (FUNCTION_H): New.  Use it instead of
9173         function.h throughout the file.
9174         * function.h: Include tree.h.
9175
9176 2006-01-17  Ben Elliston  <bje@au.ibm.com>
9177
9178         * recog.c: Separate some functions with whitespace.
9179
9180 2006-01-16  Richard Henderson  <rth@redhat.com>
9181
9182         Merge from gomp branch:
9183         * Makefile.in (TREE_INLINE_H): New.  Use it as needed.
9184         * tree-inline.h (struct copy_body_data): Move from tree-inline.c
9185         and rename from struct inline_data.  Rename callee* to dst*;
9186         caller* to src*; add copy_decl hook, transform_call_graph_edges,
9187         transform_new_cfg, transform_return_to_modify, and
9188         transform_lang_insert_block flags; remove cloning_p, versioning_p,
9189         update_clones_p.
9190         (copy_body_r, insert_decl_map, remap_decl, remap_type): Declare.
9191         (copy_decl_for_dup): Remove.
9192         * tree-inline.c (struct inline_data): Move to header.
9193         (insert_decl_map): Export.
9194         (remap_decl): Update for member name changes.  Use copy_decl hook.
9195         Allow for replacement to be a non-decl.  Remove dead code.
9196         (remap_type_1): Check for existing mapping.
9197         (remap_type): Export.
9198         (remap_decls): Update for member name changes.
9199         (remap_block, copy_bb, copy_cfg_body, copy_generic_body): Likewise.
9200         (copy_body, setup_one_parameter, declare_return_variable): Likewise.
9201         (expand_call_inline, optimize_inline_calls, clone_body): Likewise.
9202         (copy_tree_r, mark_local_for_remap_r, unsave_expr_now): Likewise.
9203         (tree_function_versioning, build_duplicate_type): Likewise.
9204         (copy_body_r): Likewise.  Export.
9205         (copy_decl_for_dup): Split into ...
9206         (copy_decl_for_dup_finish, copy_decl_to_var,
9207         copy_decl_no_change, copy_decl_maybe_to_var): ... these.
9208         (replace_ref_tree, inlining_p): Remove.
9209
9210 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
9211
9212         * ifcvt.c (if_convert): Make it static.
9213         * rtl.h: Remove the prototype for if_convert.
9214
9215         * local-alloc.c (local_alloc): Make it static.
9216         * rtl.h: Remove the prototype for local_alloc.
9217
9218         * loop.c (loop_optimize): Make it static.
9219         * cfgloop.h: Remove the prototype for loop_optimize.
9220         * rtl.h: Likewise.
9221
9222 2006-01-16  DJ Delorie  <dj@redhat.com>
9223
9224         * reload.c (reg_overlap_mentioned_for_reload_p): Handle subregs of
9225         mems.
9226
9227 2006-01-16  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
9228
9229         * pa.md: Disparage copies between general and floating-point registers
9230         in 32-bit move patterns.
9231
9232 2006-01-16  H.J. Lu  <hongjiu.lu@intel.com>
9233
9234         PR testsuite/25741
9235         * Makefile.in (check-%): Depend on site.exp instead of
9236         $(TESTSUITEDIR)/site.exp. Run "runtest" in separate language
9237         directories.
9238
9239 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
9240
9241         * global.c (global_alloc): Make it static.
9242         * rtl.h: Remove the prototype for global_alloc.
9243
9244 2006-01-16  Richard Guenther  <rguenther@suse.de>
9245
9246         * tree-ssa-alias.c (struct used_part): Add write_only field.
9247         (get_or_create_used_part_for): Initialize it to true.
9248         (create_overlap_variables_for): Don't create structure variables
9249         for structures that only are written to.
9250         (find_used_portions): Handle MODIFY_EXPR to track whether a
9251         structure is only written to.
9252
9253 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
9254
9255         * bb-reorder.c (partition_hot_cold_basic_blocks): Make it
9256         static.
9257         * basic-block.h: Remove the prototype for
9258         partition_hot_cold_basic_blocks.
9259
9260 2006-01-16  Rafael Ãvila de EspÃï¿½ndola <rafael.espindola@gmail.com>
9261
9262         * cppspec.c (lang_specific_spec_functions): Remove.
9263         * gcc.c (lookup_spec_function): Use static_spec_functions directly.
9264         * gcc.h (lang_specific_spec_functions): Remove.
9265         * gccspec.c (lang_specific_spec_functions): Remove.
9266
9267 2006-01-16  Paolo Bonzini  <bonzini@gnu.org>
9268
9269         * combine.c (record_value_for_reg): Invalidate registers
9270         if INSN is null.
9271         (record_dead_and_set_regs_1): Likewise, by passing them to
9272         record_value_for_reg.
9273         (record_dead_and_set_regs): Invalidate stores made by a
9274         call.  We do not combine across a call, but we still
9275         relied on equivalences.
9276
9277 2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>
9278
9279         * tree-vrp.c (extract_range_from_binary_expr): Cope with
9280         vrp_int_const_binop returning non-constant nodes.
9281
9282 2006-01-16  Paul Brook  <paul@codesourcery.com>
9283
9284         * config/m68k/m68k.c (output_move_const_into_data_reg):
9285         Output correct mnemonic for mvz and mvs.
9286
9287 2006-01-16  Gabor Loki  <loki@gcc.gnu.org>
9288
9289         * rtl-factoring.c: Add sequence abstraction algorithm.
9290         * cfgcleanup.c (outgoing_edges_match): Extra checks.
9291         (try_crossjump_to_edge): Avoid deleting preserve label when redirecting
9292         ABNORMAL edges.
9293         (block_has_preserve_label): New function.
9294         * common.opt: Register new pass.
9295         * Makefile.in: Ditto.
9296         * passes.c: Ditto.
9297         * timevar.def: Ditto.
9298         * tree-pass.h: Ditto.
9299         * emit-rtl.c (make_jump_insn_raw): Remove forward decl.
9300         * rtl.h (make_jump_insn_raw): Add forward decl.
9301         * doc/invoke.texi: Add documentation for -frtl-abstract-sequences.
9302
9303 2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>
9304             Roger Sayle  <roger@eyesopen.com>
9305
9306         * fold-const.c (fold_minmax): New static function.
9307         (fold_binary) <MIN_EXPR>: Call it.
9308         <MAX_EXPR>: Likewise.
9309         * stor-layout.c (place_field): Use DECL_SIZE consistently
9310         in the computation of the new record size.
9311
9312 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
9313
9314         * cse.c (cse_condition_code_reg): Make it static.
9315         * rtl.h: Remove the prototype for cse_condition_code_reg.
9316
9317         * combine.c (combine_instructions): Make it static.
9318         * rtl.h: Remove the prototype for combine_instructions.
9319
9320 2006-01-15  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
9321
9322         PR target/25168
9323         * tree.c (get_file_function_name_long): Concatenate the first global
9324         object name with a string derived from the input filename of the object
9325         for type "F".
9326
9327 2006-01-16  Ben Elliston  <bje@au.ibm.com>
9328
9329         * config/i386/winnt-stubs.c: Update FSF address.
9330         * config/xtensa/ieee754-df.S: Ditto.
9331         * config/xtensa/ieee754-sf.S: Ditto.
9332
9333 2006-01-14  Ian Lance Taylor  <ian@airs.com>
9334
9335         * ifcvt.c (noce_init_if_info): New static function, broken out of
9336         noce_process_if_block.
9337         (noce_process_if_block): Call noce_init_if_info.
9338         (check_cond_move_block): New static function.
9339         (cond_move_process_if_block): New static function.
9340         (process_if_block): Call cond_move_process_if_block.
9341
9342 2006-01-15  Kazu Hirata  <kazu@codesourcery.com>
9343
9344         * cselib.c (hash_table): Rename to cselib_hash_table.
9345         (cselib_clear_table, discard_useless_values,
9346         remove_useless_values, cselib_lookup_mem, cselib_lookup,
9347         cselib_init, cselib_finish): Adjust uses of hash_table.
9348
9349 2006-01-14  Kazu Hirata  <kazu@codesourcery.com>
9350
9351         PR tree-optimization/25485
9352         * tree-vrp.c (extract_range_from_binary_expr): Handle cases
9353         where one of the operands of TRUTH_AND_EXPR and TRUTH_OR_EXPR
9354         is known to be false and true, respectively.
9355
9356 2006-01-14  Richard Guenther  <rguenther@suse.de>
9357
9358         PR tree-optimization/22548
9359         PR tree-optimization/22555
9360         PR tree-optimization/22501
9361         * Makefile.in (tree-ssa-structalias.o): Depend on $(PARAMS_H).
9362         * params.def (salias-max-array-elements): New parameter.
9363         * params.h (SALIAS_MAX_ARRAY_ELEMENTS): Define.
9364         * doc/invoke.texi (salias-max-array-elements): Document.
9365         * tree-flow-inline.h (var_can_have_subvars): We also handle
9366         arrays now.
9367         * tree-ssa-alias.c (find_used_portions): Handle ARRAY_REF like
9368         COMPONENT_REF.
9369         * tree-ssa-structalias.c (params.h): Include.
9370         (push_fields_onto_fieldstack): Handle ARRAY_TYPE.
9371         (find_func_aliases): Handle multiple constraints from ARRAY_REF.
9372         (get_constraint_for): For ADDR_EXPR operating on something
9373         containing an ARRAY_REF, add all subvars to the solution.
9374         (handle_ptr_arith): Handle ARRAY_TYPE like RECORD_TYPE types.
9375         * tree-ssa-operands.c (parse_ssa_operands): Handle ARRAY_REF
9376         for creating MUST_DEFs.
9377         (get_expr_operands): Treat ARRAY_REF like COMPONENT_REF wrt subvars.
9378
9379 2006-01-14  Zdenek Dvorak <dvorakz@suse.cz>
9380
9381         * tree-ssa-loop-niter.c (number_of_iterations_cond): Split into several
9382         functions.
9383         (number_of_iterations_ne, number_of_iterations_lt_to_ne,
9384         assert_no_overflow_lt, assert_loop_rolls_lt, number_of_iterations_lt,
9385         number_of_iterations_le): New functions.
9386         (number_of_iterations_special): Removed.
9387         (number_of_iterations_exit): Do not use number_of_iterations_special.
9388         * tree.c (unsigned_type_for): Always return integer type.
9389
9390 2006-01-14  Steven Bosscher  <stevenb.gcc@gmail.com>
9391         Richard Guenther  <rguenther@suse.de>
9392
9393         PR rtl-optimization/24257
9394         * gcse.c (find_moveable_store): Only consider a store movable
9395         when the SET_SRC of the insn can be assigned to a register.
9396
9397 2006-01-14  Ian Lance Taylor  <ian@airs.com>
9398
9399         * tree.c (tree_not_class_check_failed): New function.
9400         * tree.h (NON_TYPE_CHECK): Call tree_not_class_check_failed.
9401         (tree_not_class_check_failed): Declare.
9402
9403 2006-01-13  Ian Lance Taylor  <ian@airs.com>
9404
9405         * reload1.c (do_output_reload): Add assertion rejecting a
9406         CALL_INSN.
9407
9408 2006-01-13  Adam Nemet  <anemet@caviumnetworks.com>
9409
9410         * combine.c (struct reg_stat): Add new fields truncation_label and
9411         truncated_to_mode.
9412         (record_value_for_reg): Reset truncated_to_mode.
9413         (record_truncated_value): New function.
9414         (check_promoted_subreg): Call it.  Rename to check_conversions.
9415         (combine_instructions): Rename check_promoted_subreg to
9416         check_conversions.
9417         (reg_truncated_to_mode): New function.
9418         (make_extraction): Use it.  Check TRULY_NOOP_TRUNCATION.
9419         (gen_lowpart_or_truncate): New function.
9420         (force_to_mode): Use it instead of gen_lowpart.
9421
9422 2006-01-13  Diego Novillo  <dnovillo@redhat.com>
9423
9424         * tree-ssa-alias.c (add_type_alias): Fix typo.  Test whether
9425         VAR is a tag, not its type tag.
9426
9427 2006-01-13  Alexandre Oliva  <aoliva@redhat.com>
9428
9429         * config/i386/sse.md (*vec_extractv2di_1_sse2): Reorder
9430         alternatives to match style of other entries.
9431         (*vec_extractv2di_1_sse): Likewise.  Fix mode attr.
9432
9433 2006-01-13  Daniel Berlin  <dberlin@dberlin.org>
9434
9435         PR tree-optimization/25771
9436         * tree-ssa-pre.c (insert_extra_phis): Don't insert merges of abnormal
9437         SSA_NAMES.
9438
9439 2006-01-13  Andrew Pinski  <pinskia@physics.uc.edu>
9440
9441         PR tree-opt/24365
9442         * tree-inline.c (declare_return_variable): If the return variable
9443         was marked as a non gimple complex, set the return slot variable
9444         to be a non gimple comple variable.
9445
9446 2006-01-13  Richard Guenther  <rguenther@suse.de>
9447
9448         * builtins.c (expand_builtin_sincos): New function.
9449         (expand_builtin_mathfn_3): Remove dead code, sin and cos
9450         do not set errno.
9451         (expand_builtin): Expand sincos using expand_builtin_sincos.
9452
9453 2006-01-12  DJ Delorie  <dj@redhat.com>
9454
9455         * config/m32c/shift.md: Rewrite: Allow arbitrary operands for
9456         shift counts, separate SI shifts for m32c vs m16c, pass shift type
9457         so that constant shifts can be split.
9458         * config/m32c/m32c.c (m32c_const_ok_for_constraint_p): Add In6.
9459         (m32c_valid_pointer_mode): Make static.
9460         (shift_gen_func_for): New.
9461         (m32c_prepare_shift): Use it.  Split large const shifts into
9462         multiple shifts.
9463         * config/m32c/predicates.md (shiftcount_operand): Allow more
9464         general operands.
9465         (longshiftcount_operand): New.
9466         * doc/md.texi (Machine Constraints): Document In6.
9467
9468 2006-01-13  Ben Elliston  <bje@au.ibm.com>
9469
9470         * doc/tm.texi (Data Output): Add REAL_VALUE_TO_TARGET_DECIMAL32,
9471         REAL_VALUE_TO_TARGET_DECIMAL64 and REAL_VALUE_TO_TARGET_DECIMAL128
9472         documentation.
9473
9474 2006-01-12  Daniel Berlin  <dberlin@dberlin.org>
9475
9476         * tree-ssa-operands.c (add_call_clobber_ops): Use SFT_PARENT_VAR
9477         to try to avoid clobbering pieces of structures when we know
9478         something about the whole structure.
9479         * tree-ssa-alias.c (create_sft): Set SFT_PARENT_VAR
9480
9481 2006-01-13  Ben Elliston  <bje@au.ibm.com>
9482
9483         * doc/rtl.texi (Insns): Remove statement that libcalls cannot
9484         return in memory, as this is no limitation is no longer present.
9485
9486 2006-01-12  DJ Delorie  <dj@redhat.com>
9487
9488         * config/m32c/addsub.md (addhi3): Add two more alternatives, for
9489         mova with fb, and for fb+0 -> An.
9490
9491         * config/m32c/mov.md (peephole2): Fix enabling logic.
9492
9493         * config/m32c/m32c.h (CTOR_LIST_BEGIN, CTOR_LIST_END,
9494         DTOR_LIST_BEGIN, DTOR_LIST_END, CTORS_SECTION_ASM_OP,
9495         DTORS_SECTION_ASM_OP, INIT_ARRAY_SECTION_ASM_OP,
9496         FINI_ARRAY_SECTION_ASM_OP): Define.
9497
9498         * config/m32c/m32c.c (m32c_legitimize_address): Remove temporary
9499         variable.
9500         (m32c_legitimize_reload_address): New logic to reload FB to An.
9501         (m32c_output_reg_push): Add newline.
9502         (m32c_output_reg_pop): Likewise.
9503
9504 2006-01-12  Ulrich Weigand  <uweigand@de.ibm.com>
9505
9506         * struct-equiv.c (find_dying_inputs): Fix off-by-one bug.
9507
9508 2006-01-11  Andrew Pinski  <pinskia@physics.uc.edu>
9509
9510         * config/i386/darwin.h (SUBTARGET_ENCODE_SECTION_INFO): Define.
9511
9512 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
9513
9514         * config/sh/predicates.md (sh_rep_vec): Add parallel to
9515         match_code.
9516
9517 2006-01-11  Ben Elliston  <bje@au.ibm.com>
9518
9519         * rtlanal.c (find_reg_note): Assert insn is not null.
9520
9521 2006-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>
9522
9523         * df-scan.c (df_hard_reg_init): Move declaration of i outside
9524         ifdef.
9525
9526 2006-01-11  Jeff Law  <law@redhat.com>
9527
9528         * tree-ssa-threadupdate.c (threaded_edges): New VEC to
9529         hold edge pairs.
9530         (mark_threaded_blocks, register_jump_thread): New functions.
9531         (thread_through_all_blocks): Remove unwanted argument.  No
9532         longer rely on e->aux to communicate thread target info.
9533         Call mark_threaded_blocks.  Release the threaded_blocks
9534         bitmap and threaded_edges vector when complete.
9535         * tree-ssa-dom.c (struct edge_info): Remove redirection_target field.
9536         (threaded_blocks): Remove.
9537         (tree_ssa_dominator_optimize): Remove initialization and
9538         finalization of threaded_blocks.  Simplify call to
9539         thread_through_all_blocks.
9540         (thread_across_edge): Call register_jump_thread rather than
9541         storing thread information into e->aux.
9542         (free_all_edge_infos): Simplify now that e->aux is no longer
9543         used to communicate with thread_through_all_blocks.
9544         * tree-flow.h (thread_through_all_blocks): Update prototype.
9545         (register_jump_thread): Prototype.
9546
9547 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
9548
9549         * df-core.c (df_compact_blocks, df_bb_replace): Use
9550         SET_BASIC_BLOCK instead of BASIC_BLOCK.
9551
9552 2006-01-11  Richard Guenther  <rguenther@suse.de>
9553
9554         PR tree-optimization/25734
9555         * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Do not
9556         stop propagation after successful propagation to the LHS.
9557
9558 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
9559
9560         * basic-block.h (control_flow_graph): Change the type of
9561         x_basic_block_info to VEC(basic_block,gc) *.
9562         (BASIC_BLOCK_FOR_FUNCTION, BASIC_BLOCK): Adjust the uses of
9563         basic_block_info.
9564         (SET_BASIC_BLOCK): New.
9565         * cfg.c (compact_blocks, expunge_block): Use SET_BASIC_BLOCK
9566         instead of BASIC_BLOCK when assigning to BASIC_BLOCK.
9567         * cfgbuild.c (find_basic_blocks): Likewise.
9568         * cfglayout.c (fixup_reorder_chain): Likewise.
9569         * cfgrtl.c (create_basic_block_structure,
9570         rtl_create_basic_block): Likewise.
9571         * ifcvt.c (find_if_case_1): Likewise.
9572         * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb):
9573         Likewise.
9574
9575 2006-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>
9576
9577         * Makefile.in: Removed rotted odf.c entry.
9578
9579 2006-01-11  Hans-Peter Nilsson  <hp@axis.com>
9580
9581         PR target/25706
9582         * config/cris/cris.md ("*extopqihi_side", "*extop<mode>si_side")
9583         ("*extop<mode>si_swap_side_biap", "*extop<mode>si_swap_side",
9584         ("*extopqihi", "*extop<mode>si", "*extop<mode>si_swap"): Use %E
9585         output pattern modifier, not %e.
9586         * config/cris/cris.c (cris_op_str): Update comment about pattern
9587         modifier.
9588         (cris_print_operand) <case 'e'>: Clear cris_output_insn_is_bound
9589         before falling through into...
9590         <case 'E'>: Redefined from old 'e' case.
9591
9592 2006-01-11  Jan Hubicka  <jh@suse.cz>
9593
9594         PR target/25042
9595         * i386.c (ix86_init_mmx_sse_builtins): Do not delcare float128
9596
9597 2006-01-11  Jan Hubicka  <jh@suse.cz>
9598
9599         * i386.h (TARGET_DECOMPOSE_LEA): Kill.
9600         * i386.c (x86_decompose_lea): Kill.
9601         (ix86_rtx_costs): Kill.
9602
9603 2006-01-11  Jan Hubicka  <jh@suse.cz>
9604
9605         * cgraph.c (cgraph_insert_node_to_hashtable): New function.
9606         * cgraph.h (cgraph_node): Add inline_decl.
9607         (cgraph_insert_node_to_hashtable): Declare.
9608         (save_inline_function_body): Declare.
9609         * cgraphunit.c (verify_cgraph_node): Inline edges might point to inline
9610         clones.
9611         (cgraph_preserve_function_body_p): Do not presrve when dump is enabled.
9612         (cgraph_function_versioning): Update call of tree_function_versioning.
9613         (save_inline_function_body): New function.
9614         * function.h (struct function): Kill saved_eh, saved_cfg, saved_args,
9615         saved_static_chain_decl, saved_blocks and saved-unexpanded_var_list.
9616         * ipa-inline.c (cgraph_mark_inline_edge): Look for inline clones.
9617         (cgraph_default_inline_p): Likewise.
9618         (cgraph_decide_inlining_incrementally): Likewise.
9619         * tree-inline.c (inline_data): Kill saving_p add update_clones_p.
9620         (copy_bb): Kill saving; do updating of clones.
9621         (copy_cfg_body): Kill saving.
9622         (initialize_inlined-parameters): Likewise.
9623         (expand_call_inline): Likewise.
9624         (save_body): Kill.
9625         (tree_function_versioning): New parameter "update_clones".
9626         (inlining_p): Kill saving.
9627         * tree-inline.h (tree_function_versioning): Update prototype.
9628         * tree-optimize.c (tree_rest_of_compilation): Use clonning instead of
9629         saving.
9630
9631 2006-01-11  Ian Lance Taylor <ian@airs.com>
9632
9633         * combine.c (struct undo): Remove is_int.  Enumify types of undos.
9634         Allow undoing set of machine mode.
9635         (do_SUBST): Use enums instead of is_int.
9636         (do_SUBST_MODE): New function.
9637         (SUBST_MODE): New macro.
9638         (try_combine): Use SUBST_MODE/PUT_MODE instead of generating a new
9639         reg and trying to replace reg_regno_rtx with a new register.
9640         (undo_all): Use new enums, handle undoing a PUT_MODE change.
9641         (simplify_set): Use SUBST_MODE.
9642         (distribute_notes): Remove code that tried to update reg notes
9643         for regno_reg_rtx changes.
9644
9645 2006-01-11  Paolo Bonzini  <bonzini@gnu.org>
9646
9647         PR tree-optimization/23109
9648         PR tree-optimization/23948
9649         PR tree-optimization/24123
9650
9651         * Makefile.in (tree-ssa-math-opts.o): Adjust dependencies.
9652         * tree-cfg.c (single_noncomplex_succ): New.
9653         * tree-flow.h (single_noncomplex_succ): Declare it.
9654         * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
9655         * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
9656         (struct occurrence, occ_head, occ_pool, is_divide_by, compute_merit,
9657         insert_bb, register_division_in, insert_reciprocals,
9658         replace_reciprocal, free_bb): New.
9659         (execute_cse_reciprocals_1): Rewritten.
9660         (execute_cse_reciprocals): Adjust calls to execute_cse_reciprocals_1.
9661         Do not commit any edge insertion.  Always compute dominators and
9662         create the allocation pool.
9663         * target-def.h (TARGET_MIN_DIVISIONS_FOR_RECIP_MUL): New.
9664         * target.h (struct gcc_target): Add min_divistions_for_recip_mul.
9665         * targhooks.c (default_min_divistions_for_recip_mul): New.
9666         * targhooks.h (default_min_divistions_for_recip_mul): New prototype.
9667         * passes.c (init_optimization_passes): Run recip after tree loop
9668         optimizations.
9669         * doc/tm.texi (Misc): Document TARGET_MIN_DIVISIONS_FOR_RECIP_MUL.
9670
9671 2006-01-11  Danny Berlin <dberlin@dberlin.org>
9672             Kenneth Zadeck <zadeck@naturalbridge.com>
9673
9674         * df.h (DF_SCAN, DF_RU, DF_RD, DF_LR, DF_UR, DF_UREC, DF_CHAIN,
9675         DF_RI, DF_LAST_PROBLEM_PLUS1, DF_DU_CHAIN, DF_UD_CHAIN,
9676         DF_REF_TYPE_NAMES, DF_HARD_REGS, DF_EQUIV_NOTES, DF_SUBREGS,
9677         DF_SCAN_BB_INFO, DF_RU_BB_INFO, DF_RD_BB_INFO, DF_LR_BB_INFO,
9678         DF_UR_BB_INFO, DF_UREC_BB_INFO, DF_LIVE_IN, DF_LIVE_OUT,
9679         DF_RA_LIVE_IN, DF_RA_LIVE_OUT, DF_UPWARD_LIVE_IN,
9680         DF_UPWARD_LIVE_OUT, DF_REF_REAL_REG, DF_REF_REGNO,
9681         DF_REF_REAL_LOC, DF_REF_REG, DF_REF_LOC, DF_REF_BB, DF_REF_BBNO,
9682         DF_REF_INSN, DF_REF_INSN_UID, DF_REF_TYPE, DF_REF_CHAIN,
9683         DF_REF_ID, DF_REF_FLAGS, DF_REF_NEXT_REG, DF_REF_PREV_REG,
9684         DF_REF_NEXT_REF, DF_REF_DATA, DF_REF_REG_DEF_P, DF_REF_REG_USE_P,
9685         DF_REF_REG_MEM_STORE_P, DF_REF_REG_MEM_LOAD_P, DF_REF_REG_MEM_P,
9686         DF_DEFS_SIZE, DF_DEFS_GET, DF_DEFS_SET, DF_USES_SIZE, DF_USES_GET,
9687         DF_USES_SET, DF_REG_SIZE, DF_REG_DEF_GET, DF_REG_DEF_SET,
9688         DF_REG_USE_GET, DF_REG_USE_SET, DF_REGNO_FIRST_DEF,
9689         DF_REGNO_LAST_USE, DF_INSN_SIZE, DF_INSN_GET, DF_INSN_SET,
9690         DF_INSN_CONTAINS_ASM, DF_INSN_LUID, DF_INSN_DEFS, DF_INSN_USES,
9691         DF_INSN_UID_GET, DF_INSN_UID_LUID, DF_INSN_UID_DEFS,
9692         DF_INSN_UID_USES, DF_SCAN_INITIAL, DF_SCAN_GLOBAL,
9693         DF_SCAN_POST_ALLOC): New macros.
9694         (df_flow_dir, df_ref_type, df_ref_flags, df_alloc_function,
9695         df_free_bb_function, df_local_compute_function, df_init_function,
9696         df_dataflow_function, df_confluence_function_0,
9697         df_confluence_function_n, df_transfer_function,
9698         df_finalizer_function, df_free_function, df_dump_problem_function,
9699         df_problem, dataflow, df_insn_info, df_reg_info, df_ref, df_link,
9700         df_ref_info, df, df_map, df_scan_bb_info, df_ru_bb_info,
9701         df_ru_bb_info, df_rd_bb_info, df_lr_bb_info, df_ur_bb_info,
9702         df_urec_bb_info, ) New types.
9703         (df_invalidated_by_call, df_all_hard_regs, df_state) New public
9704         variables.
9705         (df_init, df_add_problem, df_set_blocks, df_finish, df_analyze,
9706         df_analyze_simple_change_some_blocks,
9707         df_analyze_simple_change_one_block, df_compact_blocks,
9708         df_bb_replace, df_bb_regno_last_use_find,
9709         df_bb_regno_first_def_find, df_bb_regno_last_def_find,
9710         df_insn_regno_def_p, df_find_def, df_find_use,
9711         df_iterative_dataflow, df_dump, df_chain_dump, df_refs_chain_dump,
9712         df_regs_chain_dump, df_insn_debug, df_insn_debug_regno,
9713         df_regno_debug, df_ref_debug, debug_df_insn, debug_df_regno,
9714         debug_df_reg, debug_df_defno, debug_df_useno, debug_df_ref,
9715         debug_df_chain, df_get_dependent_problem, df_chain_create,
9716         df_chain_unlink, df_chain_copy, df_get_live_in, df_get_live_out,
9717         df_grow_bb_info, df_chain_dump, df_print_bb_index,
9718         df_ru_add_problem, df_ru_get_bb_info, df_rd_add_problem,
9719         df_rd_get_bb_info, df_lr_add_problem, df_lr_get_bb_info,
9720         df_ur_add_problem, df_ur_get_bb_info, df_urec_add_problem,
9721         df_urec_get_bb_info, df_chain_add_problem, df_ri_add_problem,
9722         df_reg_lifetime, df_scan_get_bb_info, df_scan_add_problem,
9723         df_rescan_blocks, df_ref_create, df_get_artificial_defs,
9724         df_get_artificial_uses, df_reg_chain_create, df_reg_chain_unlink,
9725         df_ref_remove, df_insn_refs_delete, df_refs_delete,
9726         df_reorganize_refs, df_set_state, df_hard_reg_init,
9727         df_read_modify_subreg_p) New public functions.
9728         * df-core.c: The core dataflow solver and glue routines for rtl
9729         dataflow.
9730         (df_init, df_add_problem, df_set_blocks, df_finish,
9731         df_hybrid_search_forward, df_hybrid_search_backward,
9732         df_iterative_dataflow, df_prune_to_subcfg, df_analyze_problem,
9733         df_analyze, df_get_bb_info, df_set_bb_info, df_bb_replace,
9734         df_bb_regno_last_use_find, df_bb_regno_first_def_find,
9735         df_bb_regno_last_def_find, df_insn_regno_def_p, df_find_def,
9736         df_reg_defined, df_find_use, df_reg_used, df_dump,
9737         df_refs_chain_dump, df_regs_chain_dump, df_insn_debug,
9738         df_insn_debug_regno, df_regno_debug, df_ref_debug, debug_df_insn,
9739         debug_df_reg, debug_df_regno, debug_df_ref debug_df_defno,
9740         debug_df_useno, reset_df_after_reload): New functions.
9741         * df-scan.c: The scanning fuctions, once in df.c, completely
9742         rewritten so that they now fully model the functionality of
9743         register usage at the backend.
9744         (df_scan_free_internal, df_scan_get_bb_info, df_scan_set_bb_info,
9745         df_scan_free_bb_info, df_scan_alloc, df_scan_free, df_scan_dump,
9746         df_scan_add_problem, df_grow_reg_info, df_grow_ref_info,
9747         df_grow_insn_info, df_rescan_blocks, df_ref_create,
9748         df_get_artificial_defs, df_get_artificial_uses,
9749         df_reg_chain_create, df_ref_unlink, df_reg_chain_unlink,
9750         df_ref_remove, df_insn_create_insn_record, df_insn_refs_delete,
9751         df_refs_delete, df_reorganize_refs, df_set_state,
9752         df_ref_create_structure, df_ref_record, df_read_modify_subreg_p,
9753         df_def_record_1, df_defs_record, df_uses_record,
9754         df_insn_contains_asm_1, df_insn_contains_asm, df_insn_refs_record,
9755         df_has_eh_preds, df_bb_refs_record, df_refs_record, df_mark_reg,
9756         df_record_exit_block_uses, df_hard_reg_init): New functions.
9757
9758         * df-problems.c: Seven concrete dataflow problems that use the
9759         scanning in df-scan.c and are solved by the engine in df-core.c.
9760         (df_get_dependent_problem, df_chain_create, df_chain_unlink,
9761         df_chain_copy, df_get_live_in, df_get_live_out, df_grow_bb_info,
9762         df_chain_dump, df_print_bb_index, df_ref_bitmap, df_set_seen,
9763         df_unset_seen, df_ru_get_bb_info, df_ru_set_bb_info,
9764         df_ru_free_bb_info, df_ru_alloc,
9765         df_ru_bb_local_compute_process_def,
9766         df_ru_bb_local_compute_process_use, df_ru_bb_local_compute,
9767         df_ru_local_compute, df_ru_init_solution, df_ru_confluence_n,
9768         df_ru_transfer_function, df_ru_free, df_ru_dump,
9769         df_ru_add_problem, df_rd_get_bb_info, df_rd_set_bb_info,
9770         df_rd_free_bb_info, df_rd_alloc,
9771         df_rd_bb_local_compute_process_def, df_rd_bb_local_compute,
9772         df_rd_local_compute, df_rd_init_solution, df_rd_confluence_n,
9773         df_rd_transfer_function, df_rd_free, df_rd_dump,
9774         df_rd_add_problem, df_lr_get_bb_info, df_lr_set_bb_info,
9775         df_lr_free_bb_info, df_lr_alloc, df_lr_bb_local_compute,
9776         df_lr_local_compute, df_lr_init, df_lr_confluence_0,
9777         df_lr_confluence_n, df_lr_transfer_function, df_lr_free,
9778         df_lr_dump, df_lr_add_problem, df_ur_get_bb_info,
9779         df_ur_set_bb_info, df_ur_free_bb_info, df_ur_alloc,
9780         df_ur_bb_local_compute, df_ur_local_compute, df_ur_init,
9781         df_ur_local_finalize, df_ur_confluence_n, df_ur_transfer_function,
9782         df_ur_free, df_ur_dump, df_ur_add_problem, df_urec_get_bb_info,
9783         df_urec_set_bb_info, df_urec_free_bb_info, df_urec_alloc,
9784         df_urec_mark_reg_change, df_urec_check_earlyclobber,
9785         df_urec_mark_reg_use_for_earlyclobber,
9786         df_urec_mark_reg_use_for_earlyclobber_1, df_urec_bb_local_compute,
9787         df_urec_local_compute, df_urec_init, df_urec_local_finalize,
9788         df_urec_confluence_n, df_urec_transfer_function, df_urec_free,
9789         df_urec_dump, df_urec_add_problem, df_chain_alloc,
9790         df_chain_create_bb_process_use, df_chain_create_bb,
9791         df_chain_finalize, df_chain_free, df_chains_dump,
9792         df_chain_add_problem, df_ri_alloc, df_ri_bb_compute,
9793         df_ri_compute, df_ri_free, df_ri_dump, df_ri_add_problem,
9794         df_reg_lifetime): New functions.
9795         * df.c: Deleted file.
9796         * ddg.c (create_ddg_dep_no_link, build_inter_loop_deps): Made code
9797         consistent with new df api.
9798         * modulo-sched.c (sms_schedule, rest_of_handle_sms,
9799         rest_of_handle_sms): Ditto.
9800         * web.c (unionfind_union, union_defs, entry_register, web_main):
9801         Ditto.
9802         * loop_invariant.c (invariant_for_use, hash_invariant_expr_1,
9803         invariant_expr_equal_p, find_defs, check_dependencies,
9804         find_invariant_insn, find_invariants_to_move, move_invariant_reg,
9805         free_inv_motion_data, move_loop_invariants): Ditto.
9806         * Makefile.in (df.c, df-scan.c df-problems.c df-core.c):
9807         Update dependencies.
9808         (odf.c): Added defective entry that was deleted later in day.
9809         * sched-deps.c (sched_analyze_1): Ditto.
9810
9811 2006-01-11  Zdenek Dvorak <dvorakz@suse.cz>
9812
9813         * tree-ssa-operands.c (get_expr_operands): Record addressable
9814         variables directly.  Do not call add_stmt_operands for CONST_DECLs
9815         and ARRAY_DECLs.
9816         (get_indirect_ref_operands): Remove handling of *(&a + offset) case.
9817         (add_stmt_operands): Handle only objects satisfying SSA_VAR_P.
9818
9819 2006-01-11  Ben Elliston  <bje@au.ibm.com>
9820
9821         * config/i386/i386.c (ix86_return_in_memory): Fix comment: this
9822         function returns true in the positive case.
9823
9824 2006-01-10  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
9825
9826         PR target/20754
9827         * config/pa/pa.md: Create separate 32 and 64-bit move patterns
9828         for SI, DI, SF and DF modes.  Add alternatives to copy between
9829         general and floating point registers to the 32-bit patterns.
9830         * config/pa/pa-64.h (SECONDARY_MEMORY_NEEDED_RTX): Delete undefine.
9831         * config/pa/pa.h (SECONDARY_MEMORY_NEEDED_RTX): Delete define.
9832         (SECONDARY_MEMORY_NEEDED): Secondary memory is only needed when
9833         generating 64-bit code.
9834         * config/pa/pa.c (output_move_double): Handle copies between general
9835         and floating registers.
9836
9837 2006-01-10  Stuart Hastings  <stuart@apple.com>
9838
9839         * config/i386/i386.md (set_got): Update.
9840         (set_got_labelled): New.  (UNSPEC_LD_MPIC): New.
9841         (builtin_setjmp_receiver): Mach-O support.
9842         * config/i386/darwin.h (TARGET_ASM_FILE_END) Define.
9843         (GOT_SYMBOL_NAME): Define.
9844         (FORCE_PREFERRED_STACK_BOUNDARY_IN_MAIN): New.
9845         (TARGET_DEEP_BRANCH_PREDICTION): Remove.
9846         * config/i386/i386.c (override_options): Revise for Darwin.
9847         (USE_HIDDEN_LINKONCE): Enable for Mach-O.  (ix86_file_end): Mach-O
9848         support.  (darwin_x86_file_end): New.  (output_set_got): Add label
9849         parameter, revise for Mach-O.  (x86_output_mi_thunk): Likewise.
9850         * config/i386/i386-protos.h (output_set_got): Likewise.
9851         * config/darwin.c (machopic_legitimize_pic_address): Update
9852         regs_ever_live[].
9853
9854 2006-01-10  Kaz Kojima  <kkojima@gcc.gnu.org>
9855
9856         * config/sh/sh.h (SH5_WOULD_BE_PARTIAL_NREGS): Use GET_MODE_SIZE
9857         when MODE isn't BLKmode.
9858
9859 2006-01-10  Eric Botcazou  <ebotcazou@libertysurf.fr>
9860
9861         PR rtl-optimization/25367
9862         * config/sparc/sparc.h (HARD_REGNO_RENAME_OK): New macro.
9863
9864 2006-01-10  Hans-Peter Nilsson  <hp@axis.com>
9865
9866         PR target/25718
9867         * config/cris/cris.md ("uminsi3"): Don't use 8- or 16-bit sizes
9868         for a negative bound.
9869
9870 2006-01-10  Richard Guenther  <rguenther@suse.de>
9871
9872         * tree-ssa-structalias.c (get_constraint_for_component_ref):
9873         Never override with anything constraint.
9874
9875 2006-01-10  Jan Beulich  <jbeulich@novell.com>
9876
9877         * config/i386/i386.c (ix86_data_alignment): Don't force alignment to
9878         256 bits when optimize_size.
9879
9880 2006-01-10  Jan Beulich  <jbeulich@novell.com>
9881
9882         * config/i386/netware.h (TARGET_SUBTARGET_DEFAULT): Include
9883         MASK_ALIGN_DOUBLE.
9884         * config/i386/nwld.h (LINK_SPEC): Add --extensions:GNU option.
9885         * config/i386/t-nwld (SHLIB_LINK): Insert spaces between expr
9886         arguments.
9887
9888 2006-01-10  Ben Elliston  <bje@au.ibm.com>
9889
9890         * config/rs6000/predicates.md (easy_fp_constant): Discount decimal
9891         float modes.
9892         * config/rs6000/rs6000.c (rs6000_scalar_mode_supported_p): New.
9893         (TARGET_SCALAR_MODE_SUPPORTED_P): Define.
9894         (USE_FP_FOR_ARG): Reject decimal float modes.
9895         (function_arg_advance): Likewise.
9896         (output_toc): Handle emitting TDmode, DDmode and SDmode constants.
9897         (rs6000_handle_altivec_attribute): Do not permit decimal floating
9898         point types in AltiVec vectors.
9899         (rs6000_function_value): Use GP_ARG_RETURN for decimal floats.
9900         (rs6000_libcall_value): Likewise.
9901
9902 2006-01-09  Bob Wilson  <bob.wilson@acm.org>
9903
9904         * config/xtensa/ieee754-df.S: New file.
9905         * config/xtensa/ieee754-sf.S: New file.
9906         * config/xtensa/t-xtensa (LIB2FUNCS_EXTRA): Remove fp-bit.c & dp-bit.c.
9907         (LIB1ASMFUNCS): Add SFmode and DFmode floating-point functions.
9908         * config/xtensa/lib1funcs.asm: Include ieee754-df.S and ieee754-sf.S.
9909
9910 2006-01-09  Kazu Hirata  <kazu@codesourcery.com>
9911
9912         * config/sh/predicates.md (binary_float_operator,
9913         binary_logical_operator, commutative_float_operator,
9914         equality_comparison_operator, greater_comparison_operator,
9915         less_comparison_operator, logical_operator,
9916         noncommutative_float_operator, shift_operator,
9917         symbol_ref_operand, unary_float_operator): Remove redundant
9918         conditionals.
9919
9920 2006-01-09  Jeff Law  <law@redhat.com>
9921
9922         * tree-ssa-dom.c (simplify_cond_and_lookup_avail_expr): Remove
9923         code to propagate the RHS of a cast into COND_EXPR_COND.  Remove
9924         now unused arguments.  Callers updated.
9925         (eliminate_redundant_computations): Remove now unused arguments,
9926         callers updated.
9927         (local_fold): Remove, no longer used.
9928         (find_equivalent_equality_comparison): Removed from tree-ssa-dom.c
9929         and moved to...
9930         * tree-ssa-forwprop.c (find_equivalent_equality_comparison): Here.
9931         (simplify_cond): New function.
9932         (forward_propagate_into_cond): Call simplify_cond.
9933
9934 2006-01-09  Alexandre Oliva  <aoliva@redhat.com>
9935
9936         * config/i386/sse.md (*vec_extractv2di_1_sse2): New.
9937         (*vec_extractv2di_1_sse): New.
9938
9939 2006-01-09  Ben Elliston  <bje@au.ibm.com>
9940
9941         * config/rs6000/rs6000.h (GO_IF_LEGITIMATE_ADDRESS): Typo fix.
9942
9943 2006-01-08  Richard Guenther  <rguenther@suse.de>
9944
9945         * tree-ssa-structalias.c (get_constraint_for): Remove
9946         anyoffset argument.
9947         (get_constraint_for_component_ref): Likewise.
9948         (do_deref): Likewise.
9949         (get_constraint_for): Likewise.
9950         (do_structure_copy): Likewise.
9951         (handle_ptr_arith): Likewise.
9952         (find_func_aliases): Likewise.  Remove unused need_anyoffset
9953         variable.
9954
9955 2006-01-08  J"orn Rennecke  <joern.rennecke@st.com>
9956             Kaz Kojima  <kkojima@gcc.gnu.org>
9957
9958         * config/sh/sh.h (CONST_OK_FOR_K16): Define.
9959         (CONST_OK_FOR_K): Add CONST_OK_FOR_K16 case.
9960         (EXTRA_CONSTRAINT_C16): Remove.
9961         (EXTRA_CONSTRAINT_Css, EXTRA_CONSTRAINT_Csu): Define.
9962         (EXTRA_CONSTRAINT_C): Remove EXTRA_CONSTRAINT_C16 case and add
9963         EXTRA_CONSTRAINT_Css and EXTRA_CONSTRAINT_Csu cases.
9964         * config/sh/sh.c (print_operand): Handle unsigned 16-bit symbolic
9965         constants of SHmedia.  Handle nested constant expressions of
9966         SHmedia correctly.
9967         (andcosts): Fix the costs for SHmedia constants.
9968         (sh_rtx_costs): Take account of outer_code for SHmedia constants.
9969         * config/sh/sh.md (*movsi_media): Use Css constraint instead of C16.
9970         (*movsi_media_nofpu, *movqi_media, *movhi_media): Likewise.
9971         (*movdi_media, *movdi_media_nofpu, movv8qi_i, movv2hi_i): Likewise.
9972         (movv4hi_i, movv2si_i): Likewise.
9973         (movsi_const): Adjust the second operand of ior so to match with
9974         the Csu constraint.
9975         (movdi_const, movdi_const_32bit): Likewise.
9976         (movdi_const_16bit+1): Don't sign-extend LOW.
9977         (movdi_const_16bit+2): Likewise.  Remove the zero_extend and truncate
9978         step.
9979         (*double_shori): Fix the split condition.  Use GEN_INT instead
9980         of get_int_mode calls.  Mask lower 16-bit of the argument of
9981         the last GEN_INT.
9982         (sym2GOTPLT): Remove.
9983         (symGOTPLT2reg): Replace gen_sym2GOTPLT with gen_rtx_CONST and
9984         gen_rtx_UNSPEC.
9985         * config/sh/predicates.md (arith_operand): Use EXTRA_CONSTRAINT_Css
9986         instead of EXTRA_CONSTRAINT_C16.
9987
9988 2006-01-07  Ian Lance Taylor  <ian@airs.com>
9989             David Edelsohn  <edelsohn@gnu.org>
9990
9991         PR rtl-optimization/25662
9992         * optabs.c (simplify_expand_binop): Use simplify_binary_operation
9993         for constant operands instead of simplify_gen_binary.
9994         * simplify-rtx.c (simplify_gen_binary): Swap commutative operands
9995         after trying simplify_binary_operation
9996
9997 2006-01-06  Daniel Berlin  <dberlin@dberlin.org>
9998
9999         * tree.c (iterative_hash_expr): Hash decls based on UID.
10000
10001 2006-01-06  Eric Christopher  <echristo@apple.com>
10002
10003         * doc/tm.texi (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): Document.
10004         (TARGET_UNWIND_EMIT): Fix spelling.
10005         * target.h (gcc_target): Add except_table_label.
10006         * except.c (output_function_exception_table): Use.
10007         * varasm.c (default_emit_except_table_label): New.
10008         * target-def.h (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): New default
10009         define.
10010         (asm_out): Add here.
10011         * output.h (default_emit_except_table_label): Prototype.
10012         * config/darwin-protos.h (darwin_emit_except_table_label): Ditto.
10013         * config/darwin.c (darwin_emit_except_table_label): Define.
10014         * config/darwin.h (TARGET_ASM_EMIT_EXCEPT_TABLE): Ditto.
10015
10016 2006-01-06  Zdenek Dvorak <dvorakz@suse.cz>
10017
10018         PR tree-optimization/18527
10019         * tree-ssa-loop-niter.c (number_of_iterations_cond,
10020         number_of_iterations_special, number_of_iterations_exit):
10021         Move base and step of an iv to a single structure.  Add
10022         no_overflow flag, and use it in # of iterations analysis.
10023         * tree-scalar-evolution.c (analyze_scalar_evolution_in_loop): Add
10024         folded_casts argument.
10025         (simple_iv): Pass base and step in a structure.  Set no_overflow
10026         flag.
10027         (scev_const_prop): Add argument to analyze_scalar_evolution_in_loop.
10028         Evaluate expensiveness of computing # of iterations instead of
10029         the final expression.
10030         * tree-scalar-evolution.h (affine_iv): New structure.
10031         (simple_iv): Declaration changed.
10032         * tree-chrec.c (chrec_apply): Handle chrecs containing symbols.
10033         * tree-ssa-loop-ivopts.c (determine_biv_step, find_givs_in_stmt_scev,
10034         find_givs_in_stmt): Changed due to simple_iv change.
10035
10036 2006-01-06  Jeff Law  <law@redhat.com>
10037
10038         PR ada/24994
10039         * tree-cfg.c (bsi_replace): Rename final argument from
10040         PRESERVE_EH_INFO to UPDATE_EH_INFO.  Fix typo in last
10041         change (stmt -> orig_stmt).
10042         * tree-eh.c (verify_eh_throw_stmt_node): New function.
10043         (bsi_remove): Add new argument.  Remove EH information
10044         if requested.
10045         (verify_eh_throw_table_statements): New function.
10046         (bsi_remove): Add new argument REMOVE_EH_INFO.  All callers
10047         updated.
10048         * tree-optimize.c (execute_free_cfg_annotations): Verify
10049         the EH throw statement table after removing annotations.
10050         * except.h (verify_eh_throw_table_statements): Prototype.
10051         * tree-flow.h (bsi_remove): Update prototype.
10052         * tree-vrp.c (remove_range_assertions): Add new argument to
10053         bsi_remove call.
10054         * tree-ssa-loop-im.c (move_computations_stmt): Likewise.
10055         * tree-complex.c (expand_complex_div_wide): Likewise.
10056         * tree-ssa-threadupdate.c (remove_ctrl_stmt_and_useless_edges): Likewise
10057         * tree-tailcall.c (eliminate_tailcall): Likewise.
10058         * tree-ssa-dse.c (dse_optimize_stmt): Likewise.
10059         * tree-ssa-loop-ivopts.c (remove_statement): Likewise.
10060         * tree-nrv.c (tree_nrv): Likewise.
10061         * tree-vectorizer.c (slpeel_make_loop_iterate_ntimes): Likewise.
10062         * tree-if-conv.c (tree_if_convert_cond_expr): Likewise.
10063         (combine_blocks): Likewise.
10064         * tree-ssa-phiopt.c (replace_phi_edge_with_variable): Likewise.
10065         * tree-cfgcleanup.c (cleanup_ctrl_expr_graph): Likewise.
10066         (cleanup_control_flow): Likewise.
10067         (remove_forwarder_block): Likewise.
10068         * tree-ssa-pre.c (remove_dead_inserted_code): Likewise.
10069         * tree-sra.c (sra_replace): Likewise.
10070         * tree-ssa-forwprop.c (forward_propagate_into_cond): Likewise.
10071         (forward_propagate_single_use_vars): Likewise.
10072         * tree-ssa-dce.c (remove_dead_stmt): Likewise.
10073         * tree-inline.c (expand_call_inline): Likewise.
10074         * tree-vect-transform.c (vect_transform_loop): Likewise.
10075         * tree-outof-ssa.c (rewrite_trees): Likewise.
10076         * tree-cfg.c (make_goto_expr_edges): Likewise.
10077         (cleanup_dead_labels): Likewise.
10078         (tree_merge_blocks, remove_bb, disband_implicit_edges): Likewise.
10079         (bsi_move_before, bsi_move_after): Likewise.
10080         (bsi_move_to_bb_end, try_redirect_by_replacing_jump): Likewise
10081         (tree_redirect_edge_and_branch, tree_split_block): Likewise.
10082
10083 2006-01-06  Andrew Pinski  <pinskia@physics.uc.edu>
10084
10085         PR tree-opt/25528
10086         * tree-ssa-alias.c (find_used_portions): Handle REALPART_EXPR
10087         and IMAGPART_EXPR.
10088         * tree-flow-inline.h (var_can_have_subvars): Handle complex types
10089         on non gimple variables.  Also add checks at the top for decls and
10090         mtags.
10091         * tree-ssa-structalias.c (push_fields_onto_fieldstack): Handle
10092         complex types.
10093         * tree-ssa-operands.c (parse_ssa_operands): Handle REALPART_EXPR
10094         and IMAGPART_EXPR for creating MUST_DEFs.
10095         (get_expr_operands): Handle SSA_NAME, STRUCT_FIELD_TAG, TYPE_MEMORY_TAG,
10096         and NAME_MEMORY_TAG separately from the DECLs.
10097
10098 2006-01-06  Richard Guenther  <rguenther@suse.de>
10099
10100         * tree-dfa.c (mark_new_vars_to_rename): Create stmt
10101         annotation, if necessary.
10102         * tree-ssa-pre.c (create_expression_by_pieces): Remove
10103         redundant calls to update_stmt.
10104         * tree-ssa-forwprop.c (tidy_after_forward_propagate_addr):
10105         Likewise.
10106
10107 2006-01-05  Richard Henderson  <rth@redhat.com>
10108
10109         * c-parser.c (c_parser_objc_methodprotolist): Handle CPP_PRAGMA.
10110
10111 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
10112
10113         * c-typeck.c: Update copyright date.
10114
10115 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
10116
10117         * c-typeck.c (build_c_cast): Always warn when casting
10118         from a pointer to an integer of different size, even if
10119         the node was constant.
10120
10121 2006-01-05  Richard Guenther  <rguenther@suse.de>
10122
10123         PR tree-optimization/22555
10124         * tree-ssa-alias.c (create_overlap_variables_for): Do not give up,
10125         if one structure field is an array.
10126         * tree-ssa-operands.c (get_expr_operands): Continue scanning
10127         operands even if we found a subvar, but ignore VOPs in this
10128         case.
10129         * tree-ssa-loop-ivopts.c (rewrite_use): Mark new vars in stmt
10130         for renaming.
10131         * tree-ssa-loop.c (pass_iv_optimize): Schedule TODO_update_ssa.
10132
10133 2006-01-05  Richard Earnshaw  <rearnsha@arm.com>
10134
10135         PR middle-end/24998
10136         * arm/t-netbsd (LIB2FUNCS_EXTRA): Define.
10137
10138 2006-01-05  Richard Guenther  <rguenther@suse.de>
10139             Diego Novillo  <dnovillo@redhat.com>
10140
10141         * tree-pass.h (TODO_remove_unused_locals): Define.
10142         * gimple-low.c (expand_var_p, remove_useless_vars,
10143         pass_remove_useless_vars): Remove.  Update all users.
10144         * tree-ssa-live.c (mark_all_vars_used_1): Handle SSA names.
10145         (remove_unused_locals): New function.
10146         * tree-flow.h (remove_unused_locals): Declare.
10147         * passes.c (execute_todo): Call remove_unused_locals if
10148         TODO_remove_unused_locals is set.
10149         * tree-into-ssa.c (pass_build_ssa): Add TODO_remove_unused_locals.
10150         * tree-ssa-dce.c (pass_dce): Likewise.
10151         * tree-outof-ssa.c (pass_del_ssa): Likewise.
10152
10153 2006-01-05  Richard Guenther  <rguenther@suse.de>
10154
10155         * tree-flow.h (struct fieldoff): Decompose field to
10156         type, size and decl.
10157         * tree-ssa-alias.c (create_sft): Take type as parameter.
10158         (create_overlap_variables_for): Store type, size and decl
10159         in the fieldoff structure.
10160         * tree-ssa-structalias.c (fieldoff_compare): Adjust users
10161         of struct fieldoff.
10162         (push_fields_onto_fieldstack): Likewise.
10163         (create_variable_info_for): Likewise.  Use offset for the
10164         SFT name if the decl is not available.
10165
10166 2006-01-04  Paul Brook  <paul@codesourcery.com>
10167
10168         * config/m68k/m68k.c (m68k_output_mi_thunk): Use jmp, not jsr.
10169
10170 2006-01-04  Daniel Berlin  <dberlin@dberlin.org>
10171
10172         * lambda-code.c (can_put_in_inner_loop): Relax
10173         restrictions.
10174         (can_put_after_inner_loop): New function.
10175         (can_convert_to_perfect_nest): Use can_put_after_inner_loop as well.
10176         (perfect_nestify): Change to make copies and modify uses.
10177
10178 2006-01-04  Richard Henderson  <rth@redhat.com>
10179
10180         Merge from gomp branch:
10181         * c-lex.c (c_lex_with_flags) <CPP_PRAGMA>: Smuggle pragma id
10182         via integer constant.
10183         (pragma_lex): Remove.
10184         * c-pch.c (c_common_pch_pragma): Accept the name as an argument,
10185         rather than parsing it.
10186         * c-pragma.c (handle_pragma_weak, handle_pragma_redefine_extname,
10187         handle_pragma_extern_prefix): Add %< %> quotes.
10188         (registered_pragmas): New.
10189         (c_register_pragma_1): New.
10190         (c_register_pragma): Use it.
10191         (c_register_pragma_with_expansion): Likewise.
10192         (c_invoke_pragma_handler): New.
10193         (init_pragma): Use cpp_register_deferred_pragma directly for
10194         pch_preprocess.
10195         * c-pragma.h (enum pragma_kind): New.
10196         (pragma_handler): New.
10197         (c_invoke_pragma_handler): Declare.
10198         * c-common.c (c_parse_error): Pretty print CPP_PRAGMA and
10199         CPP_PRAGMA_EOL.
10200         * c-common.h (c_common_pch_pragma): Update decl.
10201         * Makefile.in (c-parser.o): Update dependencies.
10202         (GTFILES): Add c-pragma.h.
10203         * c-parser.c (struct c_token): Add pragma_kind.
10204         (struct c_parser): Add in_pragma.
10205         (c_lex_one_token): Always initialize keyword and pragma_kind.
10206         Extract data for CPP_PRAGMA.
10207         (c_parser_peek_2nd_token): Deny CPP_PRAGMA_EOL.
10208         (c_parser_consume_token): Don't allow CPP_PRAGMA unless errors.
10209         Don't allow CPP_PRAGMA_EOL if in_pragma.
10210         (c_parser_consume_pragma): New.
10211         (c_parser_skip_until_found): Stop on CPP_PRAGMA_EOL.
10212         (c_parser_skip_to_end_of_parameter): Likewise.
10213         (c_parser_skip_to_end_of_block_or_statement): Likewise.
10214         (c_parser_skip_to_pragma_eol): New.
10215         (c_parser_external_declaration): Handle CPP_PRAGMA.
10216         (c_parser_compound_statement_nostart): Likewise.
10217         (c_parser_statement_after_labels): Likewise.
10218         (c_parser_pragma): New.
10219         (pragma_lex): Likewise.
10220         (c_parser_pragma_pch_preprocess): New.
10221         (c_parser_new): Merge into ...
10222         (c_parse_file): ... here.  Call c_parser_pragma_pch_preprocess.
10223
10224 2006-01-04  Jeff Law  <law@redhat.com>
10225
10226         PR ada/24994
10227         * tree-cfg.c (bsi_replace): Remove the original statement
10228         from the EH throw statement table.
10229
10230 2006-01-04  Jakub Jelinek  <jakub@redhat.com>
10231
10232         * config/i386/pmm_malloc.h (posix_memalign): If __cplusplus,
10233         make the prototype extern "C" and add throw ().
10234
10235         PR target/25554
10236         * config/i386/i386.md (testqi_ext_3): Ensure len is positive
10237         and pos non-negative and pos + len <= 32.
10238         (testqi_ext_3_rex64): Ensure len is positive and pos non-negative,
10239         drop pos + len < HOST_BITS_PER_WIDE_INT test.
10240         (testqi_ext_3* splitter): Handle pos + len == HOST_BITS_PER_WIDE_INT.
10241
10242         PR c/25559
10243         * c-common.c (handle_vector_size_attribute): Reject zero vector size
10244         as well as sizes not multiple of component size.
10245
10246         PR debug/25562
10247         * function.c (instantiate_expr): New function.
10248         (instantiate_decls_1, instantiate_decls): If DECL_HAS_VALUE_EXPR_P,
10249         walk its DECL_VALUE_EXPR with instantiate_expr.
10250
10251         * dwarf2out.c (loc_descriptor_from_tree_1): Don't add
10252         DW_OP_deref{,_size} if address isn't going to be added.
10253
10254 2006-01-04  Ben Elliston  <bje@au.ibm.com>
10255
10256         * config/fp-bit.h: Use top-of-file comment from libgcc2.c.
10257         * config/fp-bit.c: Likewise.
10258
10259 2006-01-03  Daniel Berlin  <dberlin@dberlin.org>
10260
10261         * dominance.c: Add comment about why we use DFS numbering
10262         of dominance tree.
10263
10264 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
10265             Richard Henderson  <rth@redhat.com>
10266
10267         Merge from gomp-branch:
10268         * varasm.c (assemble_variable): Handle thread-local COMMON data.
10269         * defaults.h (ASM_OUTPUT_TLS_COMMON): Define.
10270
10271 2006-01-03  Paolo Bonzini  <bonzini@gnu.org>
10272
10273         PR rtl-optimization/25578
10274         * combine.c (combine_simplify_rtx, force_to_mode): Don't
10275         pass a parameter to simplify_shift_const if changing ASHIFTRT
10276         to LSHIFTRT.
10277
10278 2006-01-03  Adrian Straetling  <straetling@de.ibm.com>
10279
10280         * builtins.c (get_builtin_sync_mem): New function.
10281         (expand_builtin_sync_operation, expand_builtin_compare_and_swap,
10282         expand_builtin_lock_test_and_set, expand_builtin_lock_release):
10283         Call get_builtin_sync_mem to generate mem rtx.
10284
10285 2006-01-03  Richard Guenther  <rguenther@suse.de>
10286
10287         PR c/25183
10288         * stmt.c (add_case_node): Make sure to clear overflow flags
10289         from ranges.
10290
10291 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
10292
10293         Merge from gomp-branch.
10294         * config/sparc/sync.md: New file.
10295         * config/sparc/sparc.md (UNSPECV_MEMBAR, UNSPECV_CAS, UNSPECV_SWAP,
10296         UNSPECV_LDSTUB): New constants.
10297         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): New function.
10298         * config/sparc/predicates.md (memory_reg_operand): New predicate.
10299         * config/sparc/sparc-protos.h (sparc_expand_compare_and_swap_12): New
10300         prototype.
10301
10302 2006-01-03  Roger Sayle  <roger@eyesopen.com>
10303
10304         * combine.c (reg_subword_p): New predicate to test whether the
10305         destination of a set refers to a subword/piece of a register.
10306         (try_combine): Generalize the code to merge the setting of a
10307         pseudo to a constant followed by a set of a subword of that
10308         register to a constant.
10309
10310 2006-01-03  Kazu Hirata  <kazu@codesourcery.com>
10311
10312         * basic-block.h (control_flow_graph): Change the type of
10313         x_label_to_block_map to VEC(basic_block,gc) *.
10314         * tree-cfg.c (init_empty_tree_cfg, label_to_block_fn,
10315         set_bb_for_stmt): Adjust the uses of x_label_to_block_map.
10316
10317         * tree-ssa-propagate.c (cfg_blocks): Change the type to
10318         VEC(basic_block,heap) *.
10319         (cfg_blocks_add, cfg_blocks_get, ssa_prop_init,
10320         ssa_prop_fini): Adjust the uses of cfg_blocks.
10321
10322 2006-01-03  Steven Bosscher  <stevenb.gcc@gmail.com>
10323
10324         * fold-const.c (operand_equal_p): Accept a NULL operand 0 for
10325         COMPONENT_REFs.
10326         * emit-rtl.c (mem_attrs_htab_eq): Use iterative_hash_expr for
10327         hashing trees instead of a pointer hash.
10328         (mem_attrs_htab_eq): Do a deep compare instead of a pointer
10329         compare for MEM_EXPR.
10330
10331         PR rtl-optimization/25130
10332         * cse.c (exp_equiv_p): Compare MEM_ATTRS instead of MEM_ALIAS_SET
10333         when comparing MEMs for GCSE
10334
10335 2006-01-03  Ben Elliston  <bje@au.ibm.com>
10336
10337         * targhooks.h (default_decimal_float_supported_p): Declare.
10338         * targhooks.c (default_decimal_float_supported_p): Define.
10339         * target-def.h (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Redefine to
10340         `default_decimal_float_supported_p'.
10341         * doc/tm.texi (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Update.
10342
10343 2006-01-02  Adam Nemet  <anemet@caviumnetworks.com>
10344
10345         * combine.c (apply_distributive_law <SUBREG>): Check
10346         TRULY_NOOP_TRUNCATION.
10347
10348 2006-01-02  Geoffrey Keating  <geoffk@apple.com>
10349
10350         * dwarf2out.c (have_switched_text_section): Delete.
10351         (have_multiple_function_sections): New.
10352         (have_location_lists): Make 'bool'.
10353         (add_AT_loc_list): Use 'true' not '1'.
10354         (dwarf2out_switch_text_section): Set have_multiple_function_sections.
10355         (output_loc_list): Use have_multiple_function_sections.
10356         (output_ranges): Likewise.
10357         (dwarf2out_begin_function): Set have_multiple_function_sections if
10358         necessary.
10359         (dwarf2out_source_line): Don't fake separate_line_info_table_in_use.
10360         Check function_section rather than DECL_SECTION_NAME.
10361         (dwarf2out_finish): Use have_multiple_function_sections.
10362         Don't clear have_location_lists.
10363
10364 2006-01-02  Eric Botcazou  <ebotcazou@adacore.com>
10365             Jan Hubicka  <jh@suse.cz>
10366
10367         * cfglayout.c (fixup_reorder_chain): Remove kludge for the
10368         case of conditional jump jumping to the next instruction.
10369         * cfgrtl.c (force_nonfallthru_and_redirect): Accept all
10370         cases of conditional jump jumping to the next instruction.
10371
10372 2006-01-02  Jan Hubicka  <jh@suse.cz>
10373
10374         * i386.c (*_cost): Add COSTS_N_INSNS.
10375         (ix86_rtx_costs): Do not use COSTS_N_INSNS.
10376
10377 2006-01-02  Paolo Bonzini  <bonzini@gnu.org>
10378
10379         PR target/25259
10380         * Makefile.in (DECNUMINC): Include libdecnumber's build directory.
10381
10382 2006-01-02  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
10383
10384         * config/arm/arm.c (all_fpus): Fix comment typo.
10385         * config/darwin.c: Likewise.
10386         * config/frv/frv.h (FRV_STRUCT_VALUE_REGNUM): Likewise.
10387         * config/h8300/h8300.md (extendqisi2_h8300hs): Likewise.
10388         * config/m68hc11/m68hc11.c (m68hc11_reload_operands): Likewise.
10389
10390 2006-01-01  David Edelsohn  <edelsohn@gnu.org>
10391
10392         * config/rs6000/rs6000.c (rs6000_expand_compare_and_swapqhi): New.
10393         (rs6000_split_compare_and_swapqhi): New.
10394         * config/rs6000/sync.md (sync_compare_and_swap{hi,qi}): New.
10395         (sync_compare_and_swapqhi_internal): New.
10396         * config/rs6000/rs6000-protos.h: Declare.