gcc/ChangeLog

   1 2006-05-02  Jakub Jelinek  <jakub@redhat.com>
   2
   3         PR c++/26943
   4         * omp-low.c (maybe_lookup_decl_in_outer_ctx): New function.
   5         (build_outer_var_ref): Use maybe_lookup_decl_in_outer_ctx
   6         to find if var will be a global variable even in the nested context.
   7         (omp_copy_decl): Only check for global variable at the end, it might
   8         be overridden in outer contexts.
   9         (scan_sharing_clauses): For global variables don't create a field.
  10         (lower_rec_input_clauses): Do nothing for global shared variables.
  11         Emit a barrier at the end of ILIST if there were any decls in both
  12         firstprivate and lastprivate clauses.
  13         (lower_send_clauses): Do nothing for global variables except for
  14         COPYIN.
  15
  16 2006-05-02  Zdenek Dvorak <dvorakz@suse.cz>
  17
  18         * tree.c (unsigned_type_for, signed_type_for): Make sure a type
  19         of the correct signedness is returned.
  20
  21 2006-05-02  Jeff Law  <law@redhat.com>
  22
  23         PR tree-optimization/27364
  24         * tree-vrp.c (vrp_int_const_binop): Fix detection of overflow from
  25         multiply expressions.
  26
  27 2006-05-02  Tom Tromey  <tromey@redhat.com>
  28
  29         * tree-flow-inline.h (op_iter_init_phiuse): Fixed typo.
  30
  31 2006-05-02  Kazu Hirata  <kazu@codesourcery.com>
  32
  33         PR target/27387
  34         * arm.c (arm_output_mi_thunk): Use pc-relative addressing when
  35         -mthumb -fPIC are used.
  36
  37 2006-05-02  Joshua Kinard  <kumba@gentoo.org>
  38
  39         PR target/25871
  40         * gcc/config/mips/mips.h (TRAMPOLINE_TEMPLATE): Avoid 32-bit moves
  41         with 64-bit pointers.
  42
  43 2006-05-02  Paul Brook  <paul@codesourcery.com>
  44
  45         * config/arm/arm.c (add_minipool_forward_ref): Check if insn
  46         and pool overlap.
  47         (create_fix_barrier): Check that a suitable barrier location is
  48         found.
  49         (arm_reorg): Include ftmp->address in allowable range of addresses.
  50
  51 2006-05-02  David Billinghurst <David.Billinghurst@riotinto.com>
  52
  53         PR ada/27366
  54         * ada/env.c (__gnat_clearenv): Use unsetenv() to clear environment
  55         on Cygwin.
  56
  57 2006-05-02  Jakub Jelinek  <jakub@redhat.com>
  58
  59         PR middle-end/27337
  60         * gimplify.c (gimplify_scan_omp_clauses): Handle INDIRECT_REF
  61         around RESULT_DECL for result passed by reference.
  62         (gimplify_expr): Call omp_notice_variable when RESULT_DECL is seen.
  63         * omp-low.c (use_pointer_for_field): Don't look at
  64         DECL_HAS_VALUE_EXPR_P for RESULT_DECLs.
  65         (scan_omp_1): Call remap_decl on RESULT_DECLs.
  66         (lower_rec_input_clauses): Don't allocate VLA memory for the second
  67         time or var for passing by reference for
  68         OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE clauses.  Allow creation of
  69         TREE_ADDRESSABLE variables when passing by reference.
  70
  71         * omp-low.c (dump_omp_region): Fix output formatting.
  72
  73         PR middle-end/27328
  74         * omp-low.c (remove_exit_barrier): Handle NULL exit_bb.
  75         (expand_omp_parallel): Likewise.
  76         * tree-cfg.c (move_sese_region_to_fn): Likewise.
  77
  78         PR middle-end/27325
  79         * omp-low.c (lower_omp_sections): Call maybe_catch_exception
  80         on statement list containing also constructors and destructors.
  81         (lower_omp_single, lower_omp_for, lower_omp_parallel): Likewise.
  82
  83         PR middle-end/27310
  84         * except.c (duplicate_eh_regions): Fix clearing of
  85         cfun->eh->region_array entries.
  86
  87 2006-05-01  DJ Delorie  <dj@redhat.com>
  88
  89         * configure.ac (gcc_cv_nm): Don't use an in-tree nm if
  90         build!=host.
  91         (gcc_cv_objdump): Likewise.
  92         * configure: Regenerated.
  93
  94 2006-05-01  Kazu Hirata  <kazu@codesourcery.com>
  95
  96         PR target/27374
  97         * config/arm/vfp.md (*arm_movdi_vfp): Correct the output
  98         templates for case 3 and 4.
  99
 100 2006-05-01  DJ Delorie  <dj@redhat.com>
 101
 102         * vec.c: Include bconfig.h when appropriate.
 103         * Makefile.in (build/vec.o): Adjust dependencies.
 104         * mkconfig.sh: Make sure config.h isn't used for build machine
 105         compiles.
 106
 107 2006-05-01  Zdenek Dvorak <dvorakz@suse.cz>
 108
 109         * tree-into-ssa.c (phis_to_rewrite, blocks_with_phis_to_rewrite): New
 110         variables.
 111         (mark_phi_for_rewrite): New function.
 112         (insert_phi_nodes_for, mark_use_interesting): Call
 113         mark_phi_for_rewrite.
 114         (rewrite_update_phi_arguments): Traverse only phis in phis_to_rewrite.
 115         (update_ssa): Initialize and free phis_to_rewrite.
 116
 117 2006-05-01  Zdenek Dvorak <dvorakz@suse.cz>
 118
 119         PR rtl-optimization/27291
 120         * loop-doloop.c (add_test, doloop_modify): Handle the case condition is
 121         folded to a constant.
 122
 123 2006-05-01  Zdenek Dvorak <dvorakz@suse.cz>
 124
 125         PR tree-optimization/27283
 126         * tree-ssa-loop-ivopts.c (struct nfe_cache_elt): Store just trees,
 127         not whole # of iteration descriptions.
 128         (niter_for_exit): Return just # of iterations.  Fail if # of iterations
 129         uses abnormal ssa name.
 130         (niter_for_single_dom_exit): Ditto.
 131         (find_induction_variables, may_eliminate_iv): Expect niter_for_exit to
 132         return just the number of iterations.
 133
 134 2006-05-01  Zdenek Dvorak <dvorakz@suse.cz>
 135
 136         PR tree-optimization/27144
 137         * tree-ssa-loop-niter.c (derive_constant_upper_bound): New function.
 138         (record_estimate): Only record constant upper bound.
 139         (infer_loop_bounds_from_undefined): Call
 140         compute_estimated_nb_iterations just once.
 141         (proved_non_wrapping_p): Renamed to ...
 142         (n_of_executions_at_most): ... this.  Expect bound to be a constant.
 143         (convert_step_widening, scev_probably_wraps_p): Call
 144         n_of_executions_at_most instead of proved_non_wrapping_p.
 145         (substitute_in_loop_info): Do not replace values in bounds.
 146         * cfgloop.h (struct nb_iter_bound): Remove "additional" field.  Update
 147         comments.
 148
 149 2006-05-01  Richard Henderson  <rth@redhat.com>
 150
 151         PR c/27358
 152         * c-parser.c (c_parser_skip_to_end_of_block_or_statement): Move after
 153         c_parser_skip_to_pragma_eol.  Convert to switch statement.  Handle
 154         CPP_PRAGMA.
 155
 156 2006-05-01  Roger Sayle  <roger@eyesopen.com>
 157
 158         * c-typeck.c (parser_build_binary_op): Don't call the function
 159         unsigned_conversion_warning to spot operand/result type overflow.
 160         (build_binary_op): Instead, call convert_and_check instead of
 161         convert to report the problem when the operands are promoted.
 162         * c-common.c (unsigned_conversion_warning): Make static.
 163         * c-common.h (unsigned_conversion_warning): Delete prototype.
 164
 165 2006-05-01  Richard Guenther  <rguenther@suse.de>
 166
 167         PR tree-optimization/26726
 168         * tree-ssa-loop-ivopts.c (idx_find_step): Mark source of the
 169         problem ...
 170         (find_interesting_uses_address): ... we work around here
 171         by folding INDIRECT_REFs in the substituted base.
 172
 173 2006-05-01  Diego Novillo  <dnovillo@redhat.com>
 174
 175         * omp-low.c (dump_omp_region): Add newlines.
 176
 177 2006-04-30  Roger Sayle  <roger@eyesopen.com>
 178
 179         * common.opt (Woverflow): New command line option.
 180         * c-common.c (constant_expression_warning): Check warn_overflow.
 181         (overflow_waring): Pass OPT_Woverflow to warning.
 182         (unsigned_conversion_warning): Likewise.
 183         (convert_and_check): Likewise.
 184         * doc/invoke.texi: Document new command line option.
 185
 186 2006-04-30  David Edelsohn  <edelsohn@gnu.org>
 187
 188         * config/rs6000/rs6000.c (rs6000_override_options): Enable
 189         TARGET_NO_FP_IN_TOC for section anchors.
 190         (optimization_options): Enable section anchors for all
 191         non-"Objective" languages.
 192
 193 2006-04-28  Eric Christopher  <echristo@apple.com>
 194
 195         * config/darwin-c.c (darwin_ms_struct): Move this
 196         (darwin_set_default_type_attributes): and this...
 197         * config/darwin.c: ... here.
 198         * config/darwin.h (darwin_ms_struct): Declare.
 199
 200 2006-04-28  Andrew MacLeod  <amacleod@redhat.com>
 201
 202         * tree-ssa-dom.c (propagate_rhs_into_lhs): Fix assert clause.
 203
 204 2006-04-28  Roger Sayle  <roger@eyesopen.com>
 205
 206         PR c/25309
 207         * c-typeck.c (struct spelling): Make I an unsigned HOST_WIDE_INT.
 208         (push_array_bounds): Delete prototype.  Change BOUNDS argument to
 209         an unsigned HOST_WIDE_INT.
 210         (print_spelling): Use HOST_WIDE_INT_PRINT_UNSIGNED to output the
 211         array index.
 212         (really_start_incremental_init): No need to call convert because
 213         bitsize_zero_node is already of type bitsizetype.
 214         (push_init_level): Extract the value of constructor_index as an
 215         unsigned HOST_WIDE_INT quantity, using tree_low_cst.
 216         (process_init_element): Likewise.
 217
 218 2006-04-28  Joseph S. Myers  <joseph@codesourcery.com>
 219
 220         * gcc.c (process_command): Add program name to GCC_EXEC_PREFIX
 221         value before passing to make_relative_prefix.
 222
 223 2006-04-28  Alan Modra  <amodra@bigpond.net.au>
 224
 225         PR middle-end/27260
 226         * builtins.c (expand_builtin_memset): Expand val in original mode.
 227
 228 2006-04-27  Eric Christopher  <echristo@apple.com>
 229
 230         * target-def.h (TARGET_SET_DEFAULT_TYPE_ATTRIBUTES): Bracket
 231         with #ifndef/#endif.
 232         * config/darwin-c.c (darwin_ms_struct): New.
 233         (darwin_pragma_ms_struct): Ditto.
 234         (darwin_set_default_type_attributes): Ditto.
 235         * config/darwin-protos.h (darwin_pragma_ms_struct): Declare.
 236         * config/darwin.h (DARWIN_REGISTER_TARGET_PRAGMAS):
 237         Register ms_struct pragma.
 238         * config/i386/darwin.h (REGISTER_TARGET_PRAGMAS): Declare.
 239         (TARGET_SET_DEFAULT_TYPE_ATTRIBUTES): Ditto.
 240         * config/rs6000/rs6000.c (rs6000_set_default_type_attributes): Call
 241         darwin_set_default_type_attributes if TARGET_MACHO.
 242
 243 2006-04-27  Andrew MacLeod  <amacleod@redhat.com>
 244
 245         PR tree-optimization/26854
 246         * tree-vrp.c (remove_range_assertions): Use new Immuse iterator.
 247         * doc/tree-ssa.texi: Update immuse iterator documentation.
 248         * tree-ssa-math-opts.c (execute_cse_reciprocals_1): Use new iterator.
 249         * tree-ssa-dom.c (propagate_rhs_into_lhs): Use new iterator.
 250         * tree-flow-inline.h (end_safe_imm_use_traverse, end_safe_imm_use_p,
 251         first_safe_imm_use, next_safe_imm_use): Remove.
 252         (end_imm_use_stmt_p): New.  Check for end of immuse stmt traversal.
 253         (end_imm_use_stmt_traverse): New.  Terminate immuse stmt traversal.
 254         (move_use_after_head): New.  Helper function to sort immuses in a stmt.
 255         (link_use_stmts_after): New.  Link all immuses in a stmt consescutively.
 256         (first_imm_use_stmt): New.  Get first stmt in an immuse list.
 257         (next_imm_use_stmt): New.  Get next stmt in an immuse list.
 258         (first_imm_use_on_stmt): New.  Get first immuse on a stmt.
 259         (end_imm_use_on_stmt_p): New.  Check for end of immuses on a stmt.
 260         (next_imm_use_on_stmt): New.  Move to next immuse on a stmt.
 261         * tree-ssa-forwprop.c (forward_propagate_addr_expr): Use new iterator.
 262         * lambda-code.c (lambda_loopnest_to_gcc_loopnest): Use new iterator.
 263         (perfect_nestify): Use new iterator.
 264         * tree-vect-transform.c (vect_create_epilog_for_reduction): Use new
 265         iterator.
 266         * tree-flow.h (struct immediate_use_iterator_d): Add comments.
 267         (next_imm_name): New field in struct immediate_use_iterator_d.
 268         (FOR_EACH_IMM_USE_SAFE, BREAK_FROM_SAFE_IMM_USE): Remove.
 269         (FOR_EACH_IMM_USE_STMT, BREAK_FROM_IMM_USE_STMT,
 270         FOR_EACH_IMM_USE_ON_STMT): New immediate use iterator macros.
 271         * tree-cfg.c (replace_uses_by): Use new iterator.
 272         * tree-ssa-threadedge.c (lhs_of_dominating_assert): Use new iterator.
 273         * tree-ssa-operands.c (correct_use_link): Remove.
 274         (finalize_ssa_use_ops): No longer call correct_use_link.
 275
 276 2006-04-27  Stuart Hastings  <stuart@apple.com>
 277
 278         * config/rs6000/t-darwin (DARWIN_EXTRA_CRT_BUILD_CFLAGS): New.
 279         * config/t-darwin (crt3.o): Use it.
 280         * config/rs6000/rs6000.c (rs6000_initialize_trampoline): Remove
 281         'pmode', use Pmode instead of SImode for SYMBOL_REF.
 282         * config/rs6000/rs6000.md (call_indirect_nonlocal_sysv,
 283         call_nonlocal_sysv, call_value_indirect_nonlocal_sysv,
 284         call_value_nonlocal_sysv): Suffix with the "P" macro for 32/64
 285         support.
 286
 287 2006-04-27  Roger Sayle  <roger@eyesopen.com>
 288
 289         * expmed.c (store_fixed_bit_field): If we're not optimizing for
 290         size, force the intermediate into a new pseudo rather instead of
 291         performing both a bitwise AND and a bitwise IOR in memory.
 292
 293 2006-04-27  Richard Guenther  <rguenther@suse.de>
 294
 295         PR rtl-optimization/26685
 296         * params.def (PARAM_MAX_CSE_INSNS): Correct typo that named
 297         this one "max-flow-memory-locations".
 298
 299 2006-04-27  Richard Guenther  <rguenther@suse.de>
 300
 301         PR tree-optimization/25148
 302         * tree-vrp.c (compare_values): Remove code dealing with
 303         comparisons against type min/max value.  Honour overflow
 304         and negative constants in code dealing with comparisons
 305         of plus and minus expressions.
 306         (value_inside_range): Use fold_binary with LE_EXPR and
 307         GE_EXPR rather than compare_values.
 308
 309 2006-04-27  Dirk Mueller  <dmueller@suse.de>
 310
 311         * config/i386/xmmintrin.h (_mm_shuffle_pi16): Declare
 312         prototype for SSE.
 313
 314 2006-04-26  Kenneth Zadeck <zadeck@naturalbridge.com>
 315
 316         * basic-block.h (safe_insert_insn_on_edge): Removed.
 317         * cfgrtl.c (mark_killed_regs, safe_insert_insn_on_edge): Removed.
 318
 319
 320 2006-04-26  David Edelsohn  <edelsohn@gnu.org>
 321             Paolo Bonzini  <bonzini@gnu.org>
 322
 323         PR middle-end/27282
 324         * combine.c (simplify_and_const_int_1): Use gen_int_mode.
 325         (simplify_and_const_int): Same.
 326
 327 2006-04-26  Aldy Hernandez  <aldyh@redhat.com>
 328
 329         * tree-ssa-dse.c (dse_optimize_stmt): Remove unused variable USE.
 330
 331 2006-04-26  Jakub Jelinek  <jakub@redhat.com>
 332
 333         PR c/26171
 334         * cgraph.c (cgraph_varpool_finalize_decl): Don't call
 335         cgraph_varpool_assemble_pending_decls if -fopenmp, unless
 336         cgraph_global_info_ready.
 337
 338         PR middle-end/26913
 339         * tree-cfg.c (find_outermost_region_in_block): Handle RESX_EXPR.
 340
 341         PR c/25996
 342         * c-parser.c (c_parser_omp_for_loop): Don't call c_finish_omp_for if
 343         either decl or init is error_mark_node.
 344
 345         PR middle-end/25989
 346         * tree-flow.h (struct omp_region): Add sched_kind.
 347         * omp-low.c (expand_parallel_call): Use region->inner->sched_kind
 348         instead of extracting omp for data.
 349         (expand_omp_for): Save extracted sched_kind.
 350
 351 2006-04-25  Roger Sayle  <roger@eyesopen.com>
 352
 353         * expmed.c (store_bit_field): Also check whether the bitsize is
 354         valid for the machine's "insv" instruction before moving the
 355         target into a pseudo for use with the insv.
 356         * config/i386/predicates.md (const8_operand): New predicate.
 357         * config/i386/i386.md (extv, extzv, insv): Use the new
 358         const8_operand predicate where appropriate.
 359
 360 2006-04-25  DJ Delorie  <dj@redhat.com>
 361
 362         * doc/install.texi (Specific): Clarify that this is not a list of
 363         supported hosts or targets.
 364
 365 2006-04-25  Richard Sandiford  <richard@codesourcery.com>
 366
 367         PR rtl-optimization/26725
 368         * cfgrtl.c (rtl_redirect_edge_and_branch_force): Set the source
 369         block's BB_DIRTY flag.
 370
 371 2006-04-25  Geoffrey Keating  <geoffk@apple.com>
 372
 373         * dwarf2out.c (size_of_locs): Don't fill dw_loc_addr if there
 374         are no branches.
 375
 376         * dwarf2asm.c (dw2_asm_output_data): Don't generate RTL just
 377         to print an integer.
 378
 379 2006-04-25  David Edelsohn  <edelsohn@gnu.org>
 380
 381         * varasm.c (align_variable): New function.
 382         (get_block_for_decl): Apply align_variable to DECL before
 383         calculating section information.
 384         (assemble_variable): Split out alignment computation.
 385
 386 2006-04-25  Andreas Krebbel  <krebbel1@de.ibm.com>
 387
 388         * expmed.c (store_bit_field): Handle paradoxical subregs on big endian
 389         machines.
 390
 391 2006-04-25  Bernd Schmidt  <bernd.schmidt@analog.com>
 392
 393         * genmodes.c (make_vector_mode): Allow making VECTOR_MODE_INT of a
 394         MODE_PARTIAL_INT mode.
 395         * config/bfin/bfin-modes.def: Add V2PDI and V2SI.
 396         * config/bfin/bfin.c (print_operand): Add macflag and mac/msu modifiers
 397         for CONST_INTs.
 398         (hard_regno_mode_ok): V2PDImode is ok for accumulators.
 399         * config/bfin/bfin.h (CLASS_MAX_NREGS, HARD_REGNO_NREGS): Handle
 400         V2PDImode.
 401         * config/bfin/predicates.md (const01_operand, vec_shift_operand):
 402         New predicates.
 403         * config/bfin/bfin.md (UNSPEC_MUL_WITH_FLAG, UNSPEC_MAC_WITH_FLAG):
 404         New constants.
 405         (MACFLAG_NONE, MACFLAG_T, MACFLAG_FU, MACFLAG_TFU, MACFLAG_IS,
 406         MACFLAG_IU, MACFLAG_W32, MACFLAG_M, MACFLAG_S2RND, MACFLAG_ISS2,
 407         MACFLAG_IH): Likewise.
 408         (movstricthi_1): Renamed from "*movstricthi".
 409         (load_accumulator, load_accumulator_pair, movsi_insv, insv,
 410         ssaddsi3, sssubsi3, ssnegsi2, signbitssi2, smaxhi3, sminhi3,
 411         abshi2, neghi2, ssneghi2, signbitshi2, movhi_low2high,
 412         movhi_high2high, movhi_low2low, movhi_high2low, movhiv2hi_low,
 413         movhiv2hi_high, composev2hi, movv2hi_hi, movv2hi_hi_low,
 414         movv2hi_hi_high, ssaddhi3, sssubhi3, ssaddv2hi3, sssubv2hi3,
 415         addsubv2hi3, subaddv2hi3, ssaddsubv2hi3, sssubaddv2hi3,
 416         sublohiv2hi3, subhilov2hi3, sssublohiv2hi3, sssubhilov2hi3,
 417         addlohiv2hi3, addhilov2hi3, ssaddlohiv2hi3, ssaddhilov2hi3,
 418         mulhisi_ll, mulhisi_lh, mulhisi_hl, mulhisi_hh, ssnegv2hi2,
 419         ssashiftv2hi3, ssashifthi3, lshiftv2hi3, lshifthi3, packv2hi,
 420         flag_mulhi, flag_mulhisi_parts, flag_machi, flag_machi_acconly,
 421         flag_macinithi, flag_macinit1hi, flag_mulv2hi, flag_mulv2hi_parts,
 422         flag_macv2hi_parts, flag_macv2hi_parts_acconly,
 423         flag_macinitv2hi_parts, flag_macinit1v2hi_parts): New patterns.
 424
 425         * doc/rtl.texi (ss_ashift): Improve wording.
 426
 427 2006-04-24  Geoffrey Keating  <geoffk@apple.com>
 428
 429         * dwarf2out.c (verify_marks_clear): New.
 430         (prune_unused_types): Call verify_marks_clear initially, not
 431         prune_unmark_dies.
 432
 433 2006-04-24  Bernd Schmidt  <bernd.schmidt@analog.com>
 434
 435         * rtl.def (SS_ASHIFT, SS_NEG): New codes.
 436         * doc/rtl.texi: Document them.
 437         * simplify-rtx.c (simplify_unary_operation,
 438         simplify_binary_operation_1): Don't abort when we see them.
 439
 440 2006-04-24  Mark Mitchell  <mark@codesourcery.com>
 441
 442         Revert:
 443         2006-04-23  Mark Mitchell  <mark@codesourcery.com>
 444         * configure.ac: Completely disregard languages that are not
 445         enabled.
 446         * configure: Regenerated.
 447
 448 2006-04-24  Andrew Pinski  <pinskia@gcc.gnu.org>
 449         Richard Guenther  <rguenther@suse.de>
 450
 451         PR tree-optimization/27236
 452         * tree-inline.c (copy_body_r): Make sure to copy
 453         TREE_THIS_VOLATILE flag.
 454
 455 2006-04-24  Richard Guenther  <rguenther@suse.de>
 456
 457         PR middle-end/26869
 458         * tree-complex.c (update_parameter_components): Don't handle
 459         unused parameters which have no default def.
 460
 461 2006-04-24  Andrew Pinski  <pinskia@gcc.gnu.org>
 462         Richard Guenther  <rguenther@suse.de>
 463
 464         PR tree-optimization/27218
 465         * tree-inline.c (expand_call_inline): Strip useless type
 466         conversions for the return slot address.
 467
 468 2006-04-24  Richard Guenther  <rguenther@suse.de>
 469
 470         * cfgloop.h (struct loops): Remove unused field array.  Reorder
 471         state after num.
 472         (LOOP_PREFETCH): Remove.
 473
 474 2006-04-24  Richard Guenther  <rguenther@suse.de>
 475
 476         PR tree-optimization/22525
 477         * value-prof.c (tree_mod_pow2): Remove unnecessary temporary
 478         variable, adjust types of generated expressions.
 479
 480 2006-04-23  H.J. Lu  <hongjiu.lu@intel.com>
 481
 482         * Makefile.in (c-convert.o): Add dependency on $(TARGET_H)
 483         (tree-vect-patterns.o): Likewise.
 484         (jump.o): Likewise.
 485         (cselib.o): Likewise.
 486         (loop-doloop.o): Likewise.
 487         (regclass.o): Likewise.
 488         (reload1.o): Likewise.
 489         (explow.o): Replace target.h with $(TARGET_H).
 490         (ipa-prop.o): Likewise.
 491         (ipa-cp.o): Likewise.
 492         (ipa-inline.o): Likewise.
 493         (reorg.o): Likewise.
 494         (reg-stack.o): Likewise.
 495
 496 2006-04-23  Eric Botcazou  <ebotcazou@adacore.com>
 497
 498         * tree-tailcall.c (pass_tail_recursion): Use gate_tail_calls too.
 499
 500 2006-04-23  Mark Mitchell  <mark@codesourcery.com>
 501
 502         * print-tree.c (print_node): Print DECL_BIT_FIELD_TYPE.
 503
 504         * configure.ac: Completely disregard languages that are not
 505         enabled.
 506         * configure: Regenerated.
 507
 508         PR c++/26534
 509         * c-common.h (c_build_bitfield_integer_type): Declare.
 510         * c-decl.c (c_build_bitfield_integer_type): Move to ...
 511         * c-common.c (c_build_bitfield_integer_type): ... here.
 512
 513 2006-04-23  Roger Sayle  <roger@eyesopen.com>
 514
 515         PR target/21283
 516         * config/fr30/fr30.md (define_split): Avoid calling gen_lowpart on
 517         a SImode SUBREG of a floating point register after no_new_pseudos.
 518
 519 2006-04-23  Roger Sayle  <roger@eyesopen.com>
 520
 521         * config/fr30/fr30.md (addsi_small_int): Use REGNO_PTR_FRAME_P to
 522         identify potentially eliminable registers to additionally catch
 523         VIRTUAL_INCOMING_ARGS_REGNUM.
 524         (addsi3): Update the conditions on when to use addsi_small_int.
 525
 526 2006-04-23  Roger Sayle  <roger@eyesopen.com>
 527
 528         PR target/16641
 529         * config/fr30/fr30.h (GO_IF_LEGITIMATE_ADDRESS): Check REGNO for
 530         STACK_POINTER_RTX and FRAME_POINTER_RTX instead of comparing the
 531         rtx to stack_pointer_rtx or frame_pointer_rtx directly.
 532
 533 2006-04-23  Eric Botcazou  <ebotcazou@adacore.com>
 534
 535         * fold-const.c (range_predecessor): Use operand_equal_p
 536         as the predicate for equality.
 537         (range_successor): Likewise.
 538
 539 2006-04-22  Kazu Hirata  <kazu@codesourcery.com>
 540
 541         Revert:
 542         * config/soft-fp/op-common.h: Fix a typo.
 543
 544 2006-04-22  Frank Ch. Eigler  <fche@redhat.com>
 545
 546         PR libmudflap/26864
 547         * common.opt (flag_mudflap_threads): Overload flag_mudflap.
 548         * tree-mudflap.c (flag_mudflap_threads): Derive from flag_mudflap.
 549
 550 2006-04-22  Kazu Hirata  <kazu@codesourcery.com>
 551
 552         * config/soft-fp/op-common.h, double-int.h, tree-ssa-dom.c:
 553         Fix comment typos.
 554         * doc/tm.texi: Fix a typo.
 555
 556 2006-04-21  Geoffrey Keating  <geoffk@apple.com>
 557
 558         * dwarf2out.c (struct die_struct): Document that die_sib makes
 559         a circular linked list.
 560         (FOR_EACH_CHILD): New.
 561         (reverse_die_lists): Delete.
 562         (reverse_all_dies): Delete.
 563         (add_dwarf_attr): Correct documentation.
 564         (remove_child_with_prev): New.
 565         (remove_child_TAG): Update for change to die_struct, use
 566         remove_child_with_prev.
 567         (add_child_die): Update for change to die_struct.
 568         (splice_child_die): Use remove_child_with_prev and add_child_die.
 569         (print_die): Use FOR_EACH_CHILD.
 570         (die_checksum): Likewise.
 571         (assign_symbol_names): Likewise.
 572         (output_location_lists): Likewise.
 573         (build_abbrev_table): Likewise.
 574         (calc_die_sizes): Likewise.
 575         (mark_dies): Likewise.
 576         (unmark_dies): Likewise.
 577         (unmark_all_dies): Likewise.
 578         (output_die): Likewise.
 579         (prune_unused_types_mark): Likewise.
 580         (prune_unused_types_walk): Likewise.
 581         (same_die_p): Update for change to die_struct.
 582         (break_out_includes): Likewise.
 583         (prune_unused_types_prune): Likewise.
 584         (add_sibling_attributes): Use FOR_EACH_CHILD, simplify logic.
 585         (prune_unmark_dies): Use FOR_EACH_CHILD, don't clear die_mark if
 586         it's already clear.
 587         (dwarf2out_finish): Don't call reverse_all_dies.
 588
 589 2006-04-21  Eric Christopher  <echristo@apple.com>
 590
 591         * df-core.c, tree-outof-ssa.c, config/i386/i386.c: Fix typos
 592         in comments and function names.
 593
 594 2006-04-21  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
 595
 596         PR c/25875
 597         * c-typeck.c (digest_init): Robustify.
 598
 599         * c-typeck.c (pop_init_level): Simplify.
 600
 601 2006-04-21  Steve Ellcey  <sje@cup.hp.com>
 602
 603         * config/pa/t-pa64: Add dependencies on $(GCC_PASSES).
 604
 605 2006-04-21  Paul Brook  <paul@codesourcery.com>
 606
 607         * config/arm/arm.c (arm_override_options): Error on iWMMXt and
 608         hardware floating point.
 609
 610 2006-04-21  David Edelsohn  <edelsohn@gnu.org>
 611
 612         * config/rs6000/rs6000.h (REG_CLASS_CONTENTS): Add sfp to
 613         NON_FLOAT_REGS.
 614
 615 2006-04-21  Nick Clifton  <nickc@redhat.com>
 616
 617         * config/sh/t-elf (EXTRA_MULTILIB_PARTS): Include
 618         OPT_EXTRA_PARTS.
 619
 620 2006-04-21  Alan Modra  <amodra@bigpond.net.au>
 621
 622         PR target/27230
 623         * config/rs6000/rs6000.c (rs6000_output_function_epilogue): Use
 624         C++ lang type in traceback table for Objective-C++.
 625
 626         * config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Update comment.
 627
 628 2006-04-20  H.J. Lu  <hongjiu.lu@intel.com>
 629
 630         * config/i386/i386.c (asm_preferred_eh_data_format): Reformat.
 631
 632 2006-04-20  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
 633
 634         PR mudflap/26789
 635         * tree-mudflap.c (mudflap_finish_file): Skip function when there
 636         were errors.  Remove check for erroneous objects.
 637
 638 2006-04-20  Jeff Law  <law@redhat.com>
 639
 640         PR tree-optimization/26854
 641         * tree-ssa-dse.c (dse_optimize_stmt): Avoid num_imm_uses when
 642         checking for zero or one use.
 643         * tree-ssa-dom.c (propagate_rhs_into_lhs): Similarly.
 644         * tree-cfgcleanup.c (merge_phi_nodes): Similarly.
 645         * tree-ssa-reassoc.c (negate_value): Similarly.
 646         (reassociate_bb): Similarly.
 647
 648 2006-04-20  Jakub Jelinek  <jakub@redhat.com>
 649
 650         * c-pretty-print.c (pp_c_direct_abstract_declarator): Print
 651         TYPE_MAX_VALUE (TYPE_DOMAIN (t)) + 1 for ARRAY_TYPE rather
 652         than plain TYPE_MAX_VALUE (TYPE_DOMAIN (t)).
 653
 654 2006-04-20  Alan Modra  <amodra@bigpond.net.au>
 655
 656         * config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Consume all
 657         fp regs if the last fp arg doesn't fit in regs.
 658
 659 2006-04-20  Kaz Kojima  <kkojima@gcc.gnu.org>
 660
 661         PR target/27182
 662         * config/sh/sh.md (movsicc_true+3): Tweak condition for the case
 663         that the last insn has the REG_INC note.
 664
 665 2006-04-19  Carlos O'Donell  <carlos@codesourcery.com>
 666             Nathan Sidwell  <nathan@codesourcery.com>
 667
 668         PR c/26774
 669         * stor-layout.c (update_alignment_for_field): Do not align
 670         ERROR_MARK nodes.
 671         (place_union_field): Place union field at the start of the union.
 672         (place_field): Move ERROR_MARK check later, and use the current
 673         allocation position to maintain monotonicity.
 674
 675 2006-04-19  Zdenek Dvorak <dvorakz@suse.cz>
 676
 677         * dominance.c: Include timevar.h.
 678         (calculate_dominance_info): Use TV_DOMINANCE.
 679         * timevar.def (TV_DOMINANCE): New timevar.
 680         * Makefile.in (dominance.o): Add TIMEVAR_H dependency.
 681
 682 2006-04-19  Andreas Krebbel  <krebbel1@de.ibm.com>
 683
 684         PR rtl-optimization/14261
 685         * ifcvt.c (noce_emit_move_insn): Call store_bit_field if the resulting
 686         move would be an INSV insn.
 687         (noce_process_if_block): Don't optimize if the destination is a
 688         ZERO_EXTRACT which can't be handled by noce_emit_move_insn.
 689
 690 2006-04-19  Andreas Krebbel  <krebbel1@de.ibm.com>
 691
 692         * config/s390/s390.md: Add comments with the instructions emitted
 693         by an insn pattern if macros are used.
 694
 695 2006-04-19  Alan Modra  <amodra@bigpond.net.au>
 696
 697         PR rtl-optimization/26026
 698         * fold-const.c (fold_binary): Optimize div and mod where the divisor
 699         is a known power of two shifted left a variable amount.
 700
 701 2006-04-18  Geoffrey Keating  <geoffk@apple.com>
 702
 703         * dwarf2out.c (prune_unused_types_update_strings): Don't add strings
 704         to hash table twice when the debug_str section has SECTION_MERGE.
 705
 706 2006-04-18  Joseph S. Myers  <joseph@codesourcery.com>
 707
 708         * config/soft-fp: New directory.  From glibc.
 709         * config/soft-fp/t-softfp: New.
 710         * config/soft-fp/README: New.
 711         * mklibgcc.in: Handle LIB2FUNCS_EXCLUDE.
 712         * Makefile.in (LIB2FUNCS_EXCLUDE, SFP_MACHINE): New.
 713         (libgcc.mk): Pass LIB2FUNCS_EXCLUDE.
 714         (LIBGCC_DEPS): Add $(SFP_MACHINE).
 715         * config.gcc: Use rs6000/t-fprules-fpbit or
 716         rs6000/t-fprules-softfp and soft-fp/t-softfp together with
 717         rs6000/t-fprules.
 718         * config/rs6000/sfp-machine.h: New.  Based on glibc.
 719         * config/rs6000/t-fprules-fpbit, config/rs6000/t-fprules-softfp:
 720         New.
 721         * config/rs6000/t-fprules: Remove fp-bit rules.
 722         * config/rs6000/t-ppccomm (LIB2FUNCS_EXTRA): Use +=.
 723         * config/rs6000/t-linux64: Likewise.  Remove duplicates from
 724         LIB2FUNCS_EXTRA.  Remove fp-bit rules.
 725         (softfp_wrap_start, softfp_wrap_end): New.
 726
 727 2006-04-18  DJ Delorie  <dj@redhat.com>
 728
 729         * config/m32c/m32c.h (PTRDIFF_TYPE): Define.
 730
 731 2006-04-18  Devang Patel  <dpatel@apple.com>
 732
 733         * doc/invoke.texi (-Wuninitialized): Clarify -O connection.
 734
 735 2006-04-18  Nick Clifton  <nickc@redhat.com>
 736
 737         * config/sh/t-symbian: Add rule to build sh-c.o
 738         * config/sh/symbian.c (sh_symbian_mark_dllexport): Replace use
 739         of DECL_NON_ADDR_CONST_P with DECL_DLLIMPORT_P.
 740         (sh_symbian_encode_section_info): Likewise.
 741
 742 2006-04-18  Andreas Krebbel  <krebbel1@de.ibm.com>
 743
 744         * builtins.c (expand_builtin_strcmp): Cover label definition of
 745         do_libcall with HAVE_cmpstrnsi.
 746
 747 2006-04-18  Kazu Hirata  <kazu@codesourcery.com>
 748
 749         * function.c (temp_slots_at_level, max_slot_level): Use VEC
 750         instead of VARRAY.
 751         * function.h (temp_slot_p): New.
 752         (function): Change the type of x_used_temp_slots to
 753         VEC(temp_slot_p,gc) *.
 754
 755 2006-04-18  Nick Clifton  <nickc@redhat.com>
 756
 757         * config/mmix/mmix.h (OPTIMIZATION_OPTIONS): Remove reference to
 758         flag_strength_reduce.
 759
 760         * doc/tm.texi (TARGET_SECTION_TYPE_FLAGS): Fix typo.
 761
 762 2006-04-18  Paolo Bonzini  <bonzini@gnu.org>
 763
 764         PR target/27117
 765
 766         Partial revert of revision 112637
 767         2006-04-03  Paolo Bonzini  <bonzini@gnu.org>
 768                     Dale Johannesen  <dalej@apple.com>
 769
 770         PR target/19653
 771         * regclass.c (struct reg_pref): Update documentation.
 772         (regclass): Set prefclass to NO_REGS if memory is the best option.
 773         (record_reg_classes): Cope with a prefclass set to NO_REGS.
 774
 775 2006-04-18  Paolo Bonzini  <bonzini@gnu.org>
 776
 777         PR tree-optimization/26821
 778         * tree-ssa-math-opts.c (get_constant_one): New.
 779         (insert_reciprocals): Use it.
 780
 781 2006-04-17  Geoffrey Keating  <geoffk@apple.com>
 782
 783         * dwarf2out.c (free_AT): Delete.
 784         (remove_AT): Update string ref counts.
 785         (remove_child_TAG): Don't call free_die.
 786         (free_die): Delete.
 787         (break_out_includes): Don't call free_die on DW_TAG_GNU_BINCL
 788         or DW_TAG_GNU_EINCL.
 789         (prune_unused_types_walk_attribs): Reset string refcounts.
 790         (prune_unused_types_update_strings): New.
 791         (prune_unused_types_prune): Don't make unnecessary stores.  Don't
 792         call free_die.  Do call prune_unused_types_update_strings.
 793         (prune_unused_types): Empty debug_str_hash.
 794
 795 2006-04-17  Roger Sayle  <roger@eyesopen.com>
 796
 797         * expr.c (expand_assignment): Optimize away no-op moves where the
 798         source and destination are equal and have no side-effects.
 799
 800 2006-04-17  Richard Guenther  <rguenther@suse.de>
 801
 802         PR target/26826
 803         * reload.c (push_reload): Guard calls to get_secondary_mem
 804         for memory subregs.
 805
 806 2006-04-16  Kazu Hirata  <kazu@codesourcery.com>
 807
 808         * alias.c (reg_base_value, old_reg_base_value): Change the
 809         type to VEC(rtx,gc) *.
 810         (REG_BASE_VALUE, find_base_value, record_set,
 811         init_alias_analysis): Use VEC instead of VARRAY.
 812
 813         * alias.c (alias_sets): Change the type to
 814         VEC(alias_set_entry,gc) *.
 815         (get_alias_set_entry, new_alias_set, record_alias_subset): Use
 816         VEC instead of VARRAY.
 817         (last_alias_set): Remove.
 818
 819         * cgraph.h (cgraph_edge_p): New.
 820         Update the prototype of cgraph_function_versioning.
 821         * cgraphunit.c (cgraph_copy_node_for_versioning,
 822         cgraph_function_versioning): Use VEC instead of VARRAY.
 823         * ipa-cp.c (ipcp_insert_stage): Likewise.
 824
 825 2006-04-16  Roger Sayle  <roger@eyesopen.com>
 826
 827         PR target/26961
 828         * fold-const.c (fold_ternary): When converting "A ? B : C" into either
 829         "A op B" or "A op C", we may need to convert A to the type of B and C.
 830
 831 2006-04-16  Adam Nemet  <anemet@caviumnetworks.com>
 832
 833         * target.h (struct gcc_target): Add mode_rep_extended.
 834         * rtlanal.c (num_sign_bit_copies_in_rep): New global.
 835         (init_num_sign_bit_copies_in_rep): Initialize it using
 836         mode_rep_extended.
 837         (truncate_to_mode): Use it.
 838         (init_rtlanal): Call init_num_sign_bit_copies_in_rep.
 839         * targhooks.h (default_mode_rep_extended): Declare it.
 840         * targhooks.c (default_mode_rep_extended): Define it.
 841         * target-def.h (TARGET_MODE_REP_EXTENDED): New macro.  Default to
 842         default_mode_rep_extended.
 843         (TARGET_INITIALIZER): Include it.
 844         * doc/tm.texi (Misc): Document it.
 845         * config/mips/mips.c (TARGET_TRUNCATED_TO_MODE): Override it.
 846         (mips_truncated_to_mode): New function.
 847
 848 2006-04-16  Roger Sayle  <roger@eyesopen.com>
 849
 850         PR middle-end/25474
 851         * expr.c (compress_float_constant): Copy the narrow constant into
 852         a new pseudo before extending it to its final width.
 853
 854 2006-04-16  Roger Sayle  <roger@eyesopen.com>
 855             Andrew Pinski  <pinskia@gcc.gnu.org>
 856             Dale Johannesen  <dalej@apple.com>
 857
 858         PR target/24076
 859         * config/i386/i386.c (ix86_expand_vector_init_duplicate): Add
 860         special case code to implement V8HImode and V16QImode with SSE2.
 861
 862 2006-04-15  Roger Sayle  <roger@eyesopen.com>
 863
 864         * config/i386/i386.c (ix86_va_start): Ensure all integer constant
 865         trees are constructed with a suitable tree type.
 866
 867 2006-04-15  Roger Sayle  <roger@eyesopen.com>
 868
 869         * tree.c (integer_zerop): Ignore TREE_CONSTANT_OVERFLOW.
 870         (integer_onep): Likewise.
 871         (integer_all_onesp): Likewise.
 872         (integer_pow2p): Likewise.
 873         (integer_nonzerop): Likewise.
 874         (real_zerop): Likewise.
 875         (real_onep): Likewise.
 876         (real_twop): Likewise.
 877         (real_minus_onep): Likewise.
 878         (int_size_in_bytes): Likewise.
 879         (host_integerp): Likewise.
 880
 881 2006-04-15  Kazu Hirata  <kazu@codesourcery.com>
 882
 883         * cfgcleanup.c, config/dfp-bit.c, expr.c, fold-const.c,
 884         jump.c, mips-tfile.c, omp-low.c, sched-int.h,
 885         tree-ssa-loop-prefetch.c, tree-vrp.c: Fix comment typos.
 886
 887         * tree-ssa-structalias.h (alias_info): Remove num_references.
 888
 889 2006-04-15  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
 890
 891         * pa.md (output_bb patterns): Shorten long branch alternatives by 4.
 892         (output_bvb patterns): Likewise.
 893         * pa.c (output_bb): Use 'bb' insn for long branch case.
 894         (output_bvb): Likewise use '{bvb|bb}' for long branch case.
 895         (output_dbra): Use '{comb|cmpb}' for long branch case for alternative
 896         1.  Correct length operand for alternatives 1 and 2.
 897         (output_movb): Use '{comb|cmpb}' for long branch case for alternatives
 898         1, 2 and 3.  Correct length operand for alternatives 1, 2 and 3.
 899
 900 2006-04-14  Roger Sayle  <roger@eyesopen.com>
 901
 902         * tree-cfg.c (make_edges, make_omp_sections_edges, move_stmt_r,
 903         is_ctrl_altering_stmt): Reinstate RTH's changes from r112935 that
 904         were accidentally reverted by r112959.
 905
 906 2006-04-15  Jakub Jelinek  <jakub@redhat.com>
 907
 908         PR middle-end/26823
 909         * except.h (eh_region_outermost): New prototype.
 910         * except.c (eh_region_outermost): New function.
 911         * tree-cfg.c (find_outermost_region_in_block): Use it.
 912
 913 2006-04-14  Kazu Hirata  <kazu@codesourcery.com>
 914
 915         * local-alloc.c (rest_of_handle_local_alloc): Use VEC instead
 916         of VARRAY.
 917         * reload1.c (reg_equiv_memory_loc_varray): Rename to
 918         reg_equiv_memory_loc_vec.  Change the type to VEC(rtx,gc) *.
 919         (init_reload, reload): Use VEC instead of VARRAY.
 920         * reload.h: Update the prototype for
 921         reg_equiv_memory_loc_varray.
 922
 923 2006-04-14  Alexey Starovoytov  <alexey.starovoytov@sun.com>
 924             Eric Botcazou  <ebotcazou@libertysurf.fr>
 925
 926         * config/sparc/sparc.c (emit_and_preserve): Allocate space for the
 927         register save area.
 928
 929 2005-04-13  Uros Bizjak  <uros@kss-loka.si>
 930
 931         PR middle-end/27134
 932         * builtins.c (expand_builtin_int_roundingfn): Use expand_normal()
 933         to expand fallback builtin function call.
 934
 935 2006-04-14  Alan Modra  <amodra@bigpond.net.au>
 936
 937         PR middle-end/27095
 938         * builtins.c: (expand_builtin_memset): Stabilize args before expansion
 939         and emit libcall here in case the builtin fails.
 940         (expand_builtin_strcmp): Always emit the libcall here on failure.
 941
 942 2006-04-14  Kazu Hirata  <kazu@codesourcery.com>
 943
 944         * basic-block.h (REG_BASIC_BLOCK): Use VEC instead of VARRAY.
 945         * flow.c (reg_n_info): Change the type to
 946         VEC(reg_info_p,heap) *.
 947         * regclass.c (allocate_reg_info, free_reg_info): Use VEC
 948         instead of VARRAY.
 949         * regs.h (reg_info_p): New.
 950         (REG_N_REFS, REG_FREQ, REG_N_SETS, REG_N_DEATHS,
 951         REG_N_CALLS_CROSSED, REG_N_THROWING_CALLS_CROSSED,
 952         REG_LIVE_LENGTH, REGNO_FIRST_UID, REGNO_LAST_UID): Use VEC
 953         instead of VARRAY.
 954
 955 2006-04-13  Eric Botcazou  <ebotcazou@adacore.com>
 956
 957         * params.def (PARAM_MAX_SCHED_READY_INSNS): New parameter,
 958         defaulting to 100.
 959         * params.h (MAX_SCHED_READY_INSNS): New macro.
 960         * haifa-sched.c: (queue_to_ready): Re-queue insns for the next cycle
 961         past MAX_SCHED_READY_INSNS during the first scheduling pass.
 962         (schedule_block): Delay insns past MAX_SCHED_READY_INSNS in
 963         the ready list for 1 cycle during the first scheduling pass.
 964         * doc/invoke.texi (--param): New parameter max-sched-ready-insns.
 965
 966 2006-04-13  Richard Henderson  <rth@redhat.com>
 967
 968         PR libgomp/26651
 969         * gimple-low.c (lower_omp_directive): Remove dead code.
 970         (lower_stmt): Do nothing except for openmp, except for OMP_PARALLEL.
 971         * gimplify.c (gimplify_expr): Update for OMP_RETURN, OMP_CONTINUE.
 972         * omp-low.c (struct omp_region): Move to tree-flow.h.
 973         (root_omp_region): Export.
 974         (omp_regions, lookup_omp_region): Remove.
 975         (determine_parallel_type): Update for struct omp_region changes.
 976         (dump_omp_region): Dump regions with block numbers.
 977         (new_omp_region): Take type and block instead of stmt; malloc
 978         instead of ggc.
 979         (free_omp_region_1, free_omp_regions): New.
 980         (expand_parallel_call): Take entry_stmt as argument; update for
 981         changes to omp_region.
 982         (remove_exit_barrier): Rewrite to update OMP_RETURN_NOWAIT.
 983         (remove_exit_barriers): New.
 984         (expand_omp_parallel): Update for struct omp_region changes.
 985         (expand_omp_synch): Likewise.
 986         (expand_omp): Likewise.
 987         (expand_omp_for_static_nochunk): Likewise; update for OMP_CONTINUE.
 988         (expand_omp_for_static_chunk): Likewise.
 989         (expand_omp_for): Likewise.
 990         (expand_omp_for_generic): Likewise; emit the proper GOMP_loop_end call.
 991         (expand_omp_sections): Similarly, with GOMP_sections_end.
 992         (expand_omp_single): New.
 993         (build_omp_regions_1): Update for OMP_CONTINUE.
 994         (execute_expand_omp): Call remove_exit_barriers, free_omp_regions.
 995         (lower_omp_sections): Expand with OMP_CONTINUE, do not collect
 996         OMP_SECTIONS_SECTIONS.
 997         (lower_omp_single_simple): Don't emit barrier here.
 998         (lower_omp_single_copy): Likewise.
 999         (lower_omp_single): Fix bindings, and lower to straightline now.
1000         (lower_omp_master, lower_omp_ordered): Likewise.
1001         (lower_omp_critical): Likewise.
1002         (lower_omp_for): Likewise.  Emit OMP_CONTINUE.
1003         * tree-cfg.c (make_edges): Collect an omp_region tree, use it for
1004         omp edges, free it afterward.
1005         (make_omp_sections_edges): Remove.
1006         (is_ctrl_altering_stmt): Don't bother checking flag_openmp.
1007         (move_stmt_r): Handle OMP_CONTINUE.
1008         * tree-flow.h (struct omp_region): Move from omp-low.c.  Switch
1009         statement pointers to basic blocks.  Add type member.
1010         (root_omp_region, new_omp_region, free_omp_regions): Declare.
1011         * tree-gimple.c (is_gimple_stmt): Handle OMP_RETURN, OMP_CONTINUE.
1012         * tree-inline.c (estimate_num_insns_1): Likewise.
1013         * tree-pretty-print.c (dump_generic_node): Likewise.
1014         * tree-ssa-operands.c (get_expr_operands): Likewise.
1015         * tree.def (OMP_SECTIONS): Remove OMP_SECTIONS_SECTIONS operand.
1016         (OMP_RETURN): Rename from OMP_RETURN_EXPR.
1017         (OMP_CONTINUE): New.
1018         * tree.h (OMP_DIRECTIVE_P): Add OMP_CONTINUE.
1019         (OMP_SECTIONS_SECTIONS): Remove.
1020         (OMP_SECTION_LAST): New.
1021         (OMP_RETURN_NOWAIT): New.
1022
1023 2006-04-13  Roger Sayle  <roger@eyesopen.com>
1024
1025         * fold-const.c (native_encode_vector, native_interpret_real):
1026         Correct obvious mistakes in the previous check-in.
1027
1028 2006-04-13  Roger Sayle  <roger@eyesopen.com>
1029
1030         * fold-const.c (native_encode_expr): New function to encode
1031         the target representation of an INTEGER_CST, REAL_CST, COMPLEX_CST
1032         or VECTOR_CST into a specified buffer.
1033         (native_encode_int): New function.
1034         (native_encode_real): New function.
1035         (native_encode_complex): New function.
1036         (native_encode_vector): New function.
1037         (native_interpret_expr): Inverse of native_encode_expr to convert
1038         a target representation into an INTEGER_CST, REAL_CST etc...
1039         (native_interpret_int): New function.
1040         (native_interpret_real): New function.
1041         (native_interpret_complex): New function.
1042         (native_interpret_vector): New function.
1043         (fold_view_convert_expr): New function to constant fold/evaluate
1044         a VIEW_CONVERT_EXPR of a suitable constant expression.
1045         (fold_unary) <VIEW_CONVERT_EXPR>: Call fold_view_convert_expr.
1046         Change call of build1 to fold_build1 when constructing a
1047         VIEW_CONVERT_EXPR.
1048
1049 2006-04-13  Paolo Bonzini  <bonzini@gnu.org>
1050             Ulrich Weigand  <uweigand@de.ibm.com>
1051
1052         PR target/27006
1053         * config/rs6000/rs6000.h (EASY_VECTOR_15_ADD_SELF): Require n
1054         to be even.
1055
1056 2006-04-13  Alan Modra  <amodra@bigpond.net.au>
1057
1058         PR target/26459
1059         * config/rs6000/rs6000.c (rs6000_legitimize_reload_address): Don't
1060         optimize to lo_sum for DFmode if !TARGET_FPRS.
1061
1062 2006-04-12  Kazu Hirata  <kazu@codesourcery.com>
1063
1064         * tree-ssa-alias.c (set_initial_properties, init_alias_info,
1065         delete_alias_info, compute_flow_sensitive_aliasing,
1066         group_aliases): Use VEC instead of VARRAY.
1067         * tree-ssa-structalias.c (update_alias_info): Likewise.
1068         * tree-ssa-structalias.h (alias_info): Change the type of
1069         processed_ptrs to VEC(tree,heap) *.
1070
1071 2006-04-12  J"orn Rennecke <joern.rennecke@st.com>
1072
1073         PR target/27060
1074         * config/sh/lib1funcs.h: New file, broken out of:
1075         * config/sh/lib1funcs.asm.
1076         * config/sh/lib1funcs.h (DR00, DR01, DR20, DR21, DR40, DR41):
1077         New macros.
1078         * config/sh/lib1funcs.asm (udivsi3_i4): Use them.
1079         * config/sh/lib1funcs-Os-4-200.asm: New file.
1080         * config/sh/embed-elf.h (LIBGCC_SPEC): Use -lgcc-Os-4-200.
1081         * config/sh/t-sh (OPT_EXTRA_PARTS): New variable.
1082         (EXTRA_MULTILIB_PARTS): Include it.
1083         ($(T)sdivsi3_i4i-Os-4-200.o): New rule.
1084         ($(T)udivsi3_i4i-Os-4-200.o, $(T)libgcc-Os-4-200.a): Likewise.
1085         * config/sh/t-superh (EXTRA_MULTILIB_PARTS): Include OPT_EXTRA_PARTS.
1086         * config/sh/sh.h (OVERRIDE_OPTIONS): Recognize -mdiv=call-table for
1087         TARGET_SH2.
1088
1089 2006-04-12  Kazu Hirata  <kazu@codesourcery.com>
1090
1091         * Makefile.in (TREE_SSA_LIVE_H): Add vecprim.h.
1092         * tree-ssa-live.c (tpa_init, tpa_remove_partition, tpa_delete,
1093         tpa_compact, root_var_init, type_var_init): Use VEC instead of
1094         VARRAY.
1095         * tree-ssa-live.h: Include vecprim.h.
1096         (tree_partition_associator_d): Change the type of
1097         first_partition to VEC(int,heap) *.
1098         (tpa_first_partition): Use VEC instead of VARRAY.
1099
1100         * Makefile.in (GTFILES): Move functions.h after tree.h.
1101         * function.c (reset_block_changes, record_block_change,
1102         check_block_change, free_block_changes): Use VEC instead of
1103         VARRAY.
1104         * function.h (function): Change the type of
1105         ib_boundaries_block to VEC(tree,gc) *.
1106         * tree-inline.c (copy_cfg_body): Initialize
1107         ib_boundaries_block to NULL instead of (varray_type) 0.
1108
1109 2006-04-12  Roger Sayle  <roger@eyesopen.com>
1110
1111         * expr.c (emit_group_store): Correct operand order in call to
1112         subreg_lowpart_offset.  Always create paradoxical SUBREGs with
1113         a SUBREG_BYTE of zero.
1114
1115 2006-04-12  Richard Guenther  <rguenther@suse.de>
1116
1117         * profile.c (compute_branch_probabilities): Remove code
1118         encapsulated in !ir_type (), which are remanents of the
1119         removed RTL profiling code.
1120         * rtl-profile.c: Remove.
1121
1122 2006-04-12  Alan Modra  <amodra@bigpond.net.au>
1123
1124         * config/rs6000/rs6000.c (rs6000_mixed_function_arg): Update
1125         magic NULL_RTX comment.
1126         (function_arg): Store entire fp arg to mem if any part should go
1127         on stack.
1128         (rs6000_arg_partial_bytes): Adjust for above change.
1129
1130 2006-04-11  Roger Sayle  <roger@eyesopen.com>
1131
1132         * dwarf2out.c (output_call_frame_info): Create debug_frame_section
1133         if it hasn't been initialized by dwarf2out_init.
1134
1135 2006-04-11  John David Anglin  <dava.anglin@nrc-cnrc.gc.ca>
1136
1137         * pa.md (MAX_12BIT_OFFSET, MAX_17BIT_OFFSET): Define and use new
1138         symbolic constants in branch patterns.
1139
1140 2006-04-11  Roger Sayle  <roger@eyesopen.com>
1141
1142         * caller-save.c: #include "addresses.h" after #include "tm_p.h".
1143
1144 2006-04-11  Richard Sandiford  <richard@codesourcery.com>
1145
1146         PR rtl-optimization/27073
1147         * gcse.c (try_replace_reg): Revert last change.  Continue to search
1148         for both REG_EQUAL and REG_EQUIV notes, but only perform replacements
1149         on the former.
1150
1151 2006-04-11  Eric Botcazou  <ebotcazou@libertysurf.fr>
1152
1153         * config/sparc/sparc.c (function_arg_slotno) <BLKmode>: Handle
1154         aggregate types other than record and union types.
1155         (function_arg): Likewise.
1156         (function_arg_pass_by_reference): In 64-bit mode, return 0 for
1157         small arrays.
1158         (function_value): In 64-bit mode, return objects that require it
1159         in FP registers.
1160
1161 2006-04-11  Roger Sayle  <roger@eyesopen.com>
1162
1163         * dwarf2out.c (premark_used_types): Remove problematic prototype.
1164
1165 2006-04-11  Jakub Jelinek  <jakub@redhat.com>
1166
1167         * gcc.c (LINK_COMMAND_SPEC): Move link_gomp after %o.
1168
1169 2006-04-03  Jeff Law  <law@redhat.com>
1170
1171         PR/27087
1172         * tree-ssa-copy.c (may_propagate_copy): Test flow sensitive
1173         alias information too.
1174
1175 2006-04-10  Mike Frysinger  <vapier@gentoo.org>
1176
1177         * gcc/Makefile.in (gcc-cross): Add $(exeext) to target name.
1178
1179 2006-04-10  Aldy Hernandez  <aldyh@redhat.com>
1180
1181         PR/21391
1182         * dwarf2out.c (struct die_struct): Add die_perennial_p field.
1183         (premark_used_types_helper): New.
1184         (premark_used_types): New.
1185         (gen_subprogram_die): Call premark_used_types.
1186         (prune_unused_types_walk): Do not prune perennial dies.
1187         * function.c (used_types_insert): New.
1188         * function.h (struct function): Add used_types_hash field.
1189         (used_types_insert): Add prototype.
1190         * Makefile.in (FUNCTION_H): Depend on HASHTAB_H.
1191         * c-parser.c (c_parser_cast_expression): Save casted types in used
1192         types hash table.
1193
1194 2006-04-11  Mark Mitchell  <mark@codesourcery.com>
1195
1196         PR target/26459
1197         * config/rs6000/e500-double.h (SUB3TARGET_OVERRIDE_OPTIONS): Test
1198         rs6000_explicit_options.float_gprs.
1199
1200 2006-04-10  Roger Sayle  <roger@eyesopen.com>
1201
1202         * config/i386/i386.c (ix86_expand_vector_init_one_nonzero): Renamed
1203         from ix86_expand_vector_init_low_nonzero.  Take an additional
1204         one_var argument indicating which element is non-zero.  Support
1205         one_var != 0 for V4SFmode and V4SImode by permuting the result.
1206         (ix86_expand_vector_init): Call ix86_expand_vector_init_one_nonzero
1207         with one_var instead of ix86_expand_vector_init_low_nonzero.
1208
1209 2006-04-10  Kazu Hirata  <kazu@codesourcery.com>
1210
1211         * Makefile.in (tree-into-ssa.o, tree-outof-ssa.o,
1212         tree-ssa-live.o, tree-ssa-alias.o, function.o, df-problems.o,
1213         global.o, cfglayout.o, lambda-code.o, reg-stack.o,
1214         build/genextract.o): Depend on vecprim.h.
1215         * cfglayout.c, df-problems.c, function.c, genextract.c,
1216         global.c, lambda-code.c, reg-stack.c, tree-into-ssa.c,
1217         tree-outof-ssa.c, tree-ssa-alias.c, tree-ssa-live.c: Include
1218         vecprim.h.
1219         * vecprim.h: New.
1220
1221 2006-04-10  Geoffrey Keating  <geoffk@apple.com>
1222
1223         * dwarf2out.c (struct dw_attr_struct): Remove dw_attr_next.
1224         Declare VECs of this type.
1225         (struct die_struct): Make field die_attr a VEC of dw_attr_struct.
1226         (remove_children): Delete.
1227         (add_dwarf_attr): Use VEC routines.
1228         (add_AT_flag): Update for changes to add_dwarf_attr.
1229         (add_AT_int): Likewise.
1230         (add_AT_unsigned): Likewise.
1231         (add_AT_long_long): Likewise.
1232         (add_AT_vec): Likewise.
1233         (add_AT_string): Likewise.
1234         (add_AT_die_ref): Likewise.
1235         (add_AT_fde_ref): Likewise.
1236         (add_AT_loc): Likewise.
1237         (add_AT_loc_list): Likewise.
1238         (add_AT_addr): Likewise.
1239         (add_AT_lbl_id): Likewise.
1240         (add_AT_lineptr): Likewise.
1241         (add_AT_macptr): Likewise.
1242         (add_AT_offset): Likewise.
1243         (add_AT_range_list): Likewise.
1244         (get_AT): Use VEC_iterate.
1245         (remove_AT): Use VEC_ordered_remove.
1246         (free_die): Fold remove_children into here; have it use VEC_iterate.
1247         (print_die): Use VEC_iterate on attrs.
1248         (reverse_die_lists): Don't reverse attr lists.
1249         (die_checksum): Use VEC_iterate on attrs.
1250         (same_die_p): Likewise.
1251         (output_location_lists): Likewise.
1252         (build_abbrev_table): Likewise.
1253         (size_of_die): Likewise.
1254         (unmark_all_dies): Likewise.
1255         (output_abbrev_section): Likewise.
1256         (output_die): Likewise.
1257         (prune_unused_types_walk_attribs): Likewise.
1258
1259 2006-04-10  Eric Botcazou  <ebotcazou@libertysurf.fr>
1260
1261         * doc/install.texi (*-*-solaris2*): Point to the configure page.
1262
1263 2006-04-10  Jakub Jelinek  <jakub@redhat.com>
1264
1265         PR debug/27057
1266         * dwarf2out.c (is_symbol_die): Return true also for namespaces.
1267
1268 2006-04-09  Roger Sayle  <roger@eyesopen.com>
1269
1270         * expr.c (store_constructor): Don't bother clearing target if
1271         we're about to assign a vector to it using vec_init_optab.
1272
1273 2006-04-10 Daniel Berlin  <dberlin@dberlin.org>
1274
1275         * tree-ssa-alias.c (lhs_may_store_to): New function.
1276         (recalculate_used_alone): Handle LHS of calls.
1277
1278 2006-04-09  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1279
1280         PR target/27034
1281         PR target/26508
1282         * config.gcc (hppa*64*-*-hpux11*): Add 'libgcc_stub.a' to extra_parts.
1283         * pa64-hpux.h (LIB_SPEC): Correct typo.  Don't append milli.a.
1284         (LINK_GCC_C_SEQUENCE_SPEC): Define.  Append milli.a here.
1285         (PA_CXA_FINALIZE_STUB, PA_JV_REGISTERCLASSES_STUB): Delete defines.
1286         (PA_INIT_FINI_HACK): Rename to PA_CRTBEGIN_HACK.
1287         (PA_CRTBEGIN_HACK): Ensure __do_global_ctors_aux is placed in text
1288         section.  Delete PA_CXA_FINALIZE_STUB and PA_JV_REGISTERCLASSES_STUB
1289         stubs.  Add ".align 8" directives before all ".dword" directives.
1290         (GTHREAD_USE_WEAK): Revise comment.
1291         (TARGET_ATTRIBUTE_WEAK): Define.
1292         * pa/t-pa64 (LIBGCCSTUB_OBJS): Add new rules for stublib.c, rfi-stub.o,
1293         dfi-stub.o, cxaf-stub.o and jvrc-stub.o.
1294         * stublib.c: New file.
1295
1296         PR target/26743
1297         PR target/11254
1298         PR target/10274
1299         * pa.md (cbranch patterns): Revise arguments used in calls to
1300         output_cbranch, output_bb and output_bvd.  Add long branch length
1301         attributes.
1302         (fbranch patterns): Handle long branches.
1303         (jump): Revise length check.  Revise arguments for output_lbranch call.
1304         Add long branch length attributes.
1305         (decrement_and_branch_until_zero): Add long branch length attributes.
1306         (output_movb, output_parallel_addb and output_parallel_movb patterns):
1307         Likewise.  Revise arguments for output_parallel_addb and
1308         output_parallel_movb calls.
1309         * pa-protos.h (output_cbranch, output_lbranch, output_bb, output_bvb,
1310         output_parallel_movb and output_parallel_addb): Update prototypes.
1311         * pa.c (output_cbranch): Revise arguments.  Correct handling of
1312         nullification in long branches.
1313         (output_lbranch): Add new argument to control extraction of delay
1314         instruction.
1315         (output_bb): Handle long branches.
1316         (output_bvb, output_dbra, output_movb, output_parallel_movb,
1317         output_parallel_addb): Likewise.
1318
1319 2006-04-09  Richard Sandiford  <richard@codesourcery.com>
1320
1321         PR rtl-optimization/27073
1322         * gcse.c (try_replace_reg): Just propagate into REG_EQUAL notes,
1323         not REG_EQUIVs.
1324
1325 2006-04-08  Daniel Berlin  <dberlin@dberlin.org>
1326
1327         * tree.h (tree_memory_tag): Add old_used_alone.
1328         (SMT_OLD_USED_ALONE): New macro.
1329         * tree-ssa-alias.c (recalculate_used_alone): Stop
1330         marking things for renaming unnecessarily.
1331
1332 2006-04-08  Kazu Hirata  <kazu@codesourcery.com>
1333
1334         * builtins.c, config/arm/arm.c, config/i386/cygwin.h,
1335         config/i386/i386.c, config/ia64/ia64.c, config/s390/fixdfdi.h,
1336         config/sh/sh.c, config/sh/sh.h, df-scan.c, except.c,
1337         haifa-sched.c, optabs.c, rtl.h, sched-deps.c, sched-int.h,
1338         sched-rgn.c, tree-inline.h, tree-ssa-dom.c,
1339         tree-ssa-loop-prefetch.c, tree-ssa-operands.c,
1340         tree-vect-patterns.c, tree-vrp.c: Fix comment typos.  Follow
1341         spelling convensions.
1342         * config/ia64/ia64.opt, doc/contrib.texi, doc/invoke.texi,
1343         doc/passes.texi, doc/tm.texi, doc/tree-ssa.texi: Fix comment
1344         typos.  Follow spelling conventions.
1345
1346 2006-04-07  DJ Delorie  <dj@redhat.com>
1347
1348         * config/m32c/m32c.c (m32c_function_arg): Structures are always
1349         passed on the stack.
1350         (m32c_init_cumulative_args): When a function returns a structure,
1351         always pass the pointer to that return area on the stack.
1352         (m32c_function_arg_advance): Don't increment the parameter number
1353         if we're processing the returned structure pointer.
1354         (pushm_info): Reverse order of registers.
1355
1356 2006-04-07  Sebastian Pop  <pop@cri.ensmp.fr>
1357
1358         * tree-ssa-loop-niter.c (inverse, number_of_iterations_ne,
1359         assert_no_overflow_lt, assert_loop_rolls_lt, number_of_iterations_lt,
1360         number_of_iterations_le, number_of_iterations_cond, find_loop_niter,
1361         estimate_numbers_of_iterations_loop): Use build_int_cst instead of
1362         build_int_cst_type.
1363         * tree-chrec.c (chrec_fold_multiply_poly_poly,
1364         chrec_fold_multiply): Same.
1365         * tree-ssa-loop-ivopts.c (strip_offset_1, force_expr_to_var_cost,
1366         force_expr_to_var_cost): Same.
1367         * tree-mudflap.c (mf_xform_derefs_1): Same.
1368         * tree-ssa-loop-prefetch.c (idx_analyze_ref): Same.
1369
1370 2006-04-07  David Edelsohn  <edelsohn@gnu.org>
1371
1372         * config/rs6000/rs6000.c (rs6000_rtx_costs) <CONST_DOUBLE>: Do not
1373         treat CONST_DOUBLE as INTVAL.  and64_2_operands require an extra
1374         insn.
1375
1376 2006-04-07  Jan Hubicka  <jh@suse.cz>
1377
1378         * ipa-inline.c (cgraph_early_inlining): Collect garbage.
1379
1380 2006-04-07  Richard Guenther  <rguenther@suse.de>
1381
1382         PR tree-optimization/26135
1383         * tree-ssa-copy.c (stmt_may_generate_copy): Handle memory
1384         loads for store copy-prop.
1385         (copy_prop_visit_stmt): Likewise.
1386
1387 2006-04-05  Robert Millan  <robertmh@gnu.org>
1388
1389         * gcc/config/i386/linux.h:  Add a comment to mark macros that are
1390         being overriden in config/k*bsd-gnu.h.
1391         * gcc/config/kfreebsd-gnu.h:  Redefine GLIBC_DYNAMIC_LINKER instead of
1392         DYNAMIC_LINKER.
1393         * gcc/config/knetbsd-gnu.h:  Ditto.
1394
1395 2006-04-06  Jan Hubicka  <jh@suse.cz>
1396
1397         PR profile/20815
1398         PR profile/26399
1399         * coverage.c (coverage_checksum_string): Reorganize loop to not read
1400         after buffer.
1401
1402 2006-04-06  Mike Stump  <mrs@apple.com>
1403
1404         * builtins.c (expand_builtin_longjmp):Use #ifdef instead of #if
1405         for HAVE_nonlocal_goto to be consistent.
1406         (expand_builtin_nonlocal_goto): Likewise.
1407         (expand_builtin_strcmp): Use #ifdef instead of #if
1408         for HAVE_cmpstrnsi to be consistent.
1409
1410 2006-04-05  DJ Delorie  <dj@redhat.com>
1411
1412         * config/m32c/m32c.h (INCOMING_FRAME_SP_OFFSET): Adjust for m16c
1413         vs m32c.
1414
1415 2006-04-05  Bernd Schmidt  <bernd.schmidt@analog.com>
1416
1417         * config/bfin/bfin.c (bfin_legitimate_address_p): Disallow
1418         got-relative addressing for anything but SImode.
1419
1420         * config/bfin/lib1funcs.asm (modsi): P1/P2 can be call-clobbered
1421         even if the calling function doesn't modify them.
1422
1423 2006-04-05  Richard Guenther  <rguenther@suse.de>
1424
1425         PR tree-optimization/26919
1426         * ipa-inline.c (cgraph_decide_inlining_incrementally): Fix argument
1427         to cgraph_estimate_size_after_inlining.
1428
1429 2006-04-05  Alan Modra  <amodra@bigpond.net.au>
1430
1431         * reload.c (find_dummy_reload): Fix typo in 2006-04-03 change.
1432
1433 2006-04-05  Sebastian Pop  <pop@cri.ensmp.fr>
1434
1435         PR tree-optimization/26996
1436         * tree-scalar-evolution.c (analyze_scalar_evolution_1): Don't analyze
1437         VECTOR_TYPE variables.
1438
1439 2006-04-05  Richard Guenther  <rguenther@suse.de>
1440
1441         PR tree-optimization/26763
1442         * fold-const.c (fold_comparison): Move folding of
1443         PTR + CST CMP PTR + CST ...
1444         (fold_binary): ... here.  Fold only for EQ_EXPR and NE_EXPR.
1445
1446 2006-04-05  Gerald Pfeifer  <gerald@pfeifer.com>
1447
1448         * doc/install.texi (Prerequisites): Refine some wording on
1449         bootstrapping and ksh.
1450         Move the version numbers of DejaGnu here from the testing section
1451         and fix casing of names.
1452         Fix markup and clarify wording for autogen requirements.
1453         Refer to GCJ instead of just java.
1454         Refer to SVN instead of CVS.
1455         Describe diffutils as useful instead of necessary.
1456         (Downloading the source): Refer to SVN instead of CVS.
1457         Adjust a link to our web site accordingly.
1458         (Configuration): Fix casing of Bison.
1459         (Building): Refer to SVN instead of CVS.
1460         Fix a sentence on the use of Bison and remove duplicate (and
1461         incorrect) version number of Bison requirement.
1462         Remove one redundant list of packages needed for building.
1463         (Specific): Avoid reference to CVS.
1464
1465 2006-04-04  Eric Christopher  <echristo@apple.com>
1466
1467         * config/rs6000/rs6000.c (TARGET_MS_BITFIELD_LAYOUT_P): Define.
1468         (TARGET_USE_MS_BITFIELD_LAYOUT): Ditto.
1469         (rs6000_handle_struct_attribute): New.
1470         (rs6000_ms_bitfield_layout_p): Ditto.
1471
1472 2006-04-04  Geoffrey Keating  <geoffk@apple.com>
1473
1474         * config/darwin-crt3.c (atexit): Pass &__dso_handle rather than
1475         NULL for dso parameter to atexit_common.
1476
1477 2006-04-04  Eric Christopher  <echristo@apple.com>
1478
1479         * config/i386/i386.c (machopic_output_stub): Output \t
1480         between instructions and operands.
1481
1482 2006-04-04  David Edelsohn  <edelsohn@gnu.org>
1483
1484         * config/rs6000/rs6000.c (num_insns_constant_wide): Change
1485         satisfies_constraint_[IL] to explicit tests on value.
1486
1487 2006-04-04  Sebastian Pop  <pop@cri.ensmp.fr>
1488
1489         * tree-scalar-evolution.c (compute_overall_effect_of_inner_loop,
1490         set_nb_iterations_in_loop): Use build_int_cst instead of
1491         build_int_cst_type.
1492         * tree-data-ref.c (can_use_analyze_subscript_affine_affine): Use
1493         build_int_cst instead of convert.
1494
1495 2006-04-04  Carlos O'Donell  <carlos@codesourcery.com>
1496
1497         * doc/tm.texi (TARGET_STRUCT_VALUE_RTX): Document
1498         new value 2 for incoming.
1499         * function.c (expand_function_start): Call struct_value_rtx
1500         with incoming as 2.
1501         * config/sparc/sparc.md: Comment updated_return.
1502         * config/sparc/sparc.opt: Add -mstd-struct-return option.
1503         * config/sparc/sparc.c (sparc_struct_value_rtx): Use standard
1504         struct return if sparc_std_struct_return and incoming is 2.
1505         (print_operand): Do not adjust return if
1506         sparc_std_struct_return.
1507
1508 2006-04-04  Roger Sayle  <roger@eyesopen.com>
1509
1510         * builtins.c (fold_builtin_sprintf): Use fold_convert instead of
1511         convert in the middle-end.
1512         * expr.c (store_expr, store_constructor, get_inner_reference,
1513         expand_expr_real_1, string_constant, try_casesi, try_tablejump):
1514         Likewise.
1515         * tree.c (build_range_type): Likewise.
1516
1517 2006-04-04  Tom Tromey  <tromey@redhat.com>
1518
1519         * doc/install.texi (Prerequisites): Mention jar.
1520
1521 2006-04-04  Daniel Berlin  <dberlin@dberlin.org>
1522
1523         * doc/tree-ssa.texi (Preserving the virtual ssa form): New
1524         subsection.
1525
1526 2006-04-04  Matthias Klose  <doko@debian.org>
1527
1528         * Makefile.in (unprotoize.o): Same dependencies as for protoize.o.
1529         * Makefile.in (s-macro_list): Conform to POSIX rules in single quoted
1530         strings.
1531
1532 2006-04-03  Geoffrey Keating  <geoffk@apple.com>
1533
1534         * doc/extend.texi (Function Attributes): Rewrite visibility
1535         attribute documentation.
1536         * doc/invoke.texi (C++ Dialect Options): Rewrite
1537         -fvisibility-inlines-hidden documentation to describe something
1538         entirely different, although in practise compatible.
1539         (Code Gen Options): Warn about system headers in -fvisibiltity=
1540         documentation.
1541
1542         * doc/extend.texi (Other Builtins): Document that
1543         __builtin_nan is a compile-time constant only when its argument
1544         is valid.
1545
1546 2006-04-03  Adam Nemet  <anemet@caviumnetworks.com>
1547
1548         * simplify-rtx.c (simplify_unary_operation_1) <TRUNCATE>: When
1549         trying to remove TRUNCATE check if all bits outside the new mode
1550         are identical to the sign bit.
1551
1552 2006-04-03  Jeff Law  <law@redhat.com>
1553
1554         * tree-ssa-dom.c (propagate_rhs_into_lhs): Avoid useless folding
1555         and operand scanning in some common cases.
1556
1557 2006-04-03  Paolo Bonzini  <bonzini@gnu.org>
1558             Dale Johannesen  <dalej@apple.com>
1559
1560         PR target/19653
1561         * regclass.c (struct reg_pref): Update documentation.
1562         (regclass): Set prefclass to NO_REGS if memory is the best option.
1563         (record_reg_classes): Cope with a prefclass set to NO_REGS.
1564         * reload.c (find_reloads): Take PREFERRED_OUTPUT_RELOAD_CLASS
1565         into account.  For non-registers, equate an empty preferred
1566         reload class to a `!' in the constraint; move the if clause to
1567         do so after those that reject the insn.
1568         (push_reload): Allow PREFERRED_*_RELOAD_CLASS to liberally
1569         return NO_REGS.
1570         (find_dummy_reload): Likewise.
1571         * doc/tm.texi (Register Classes): Document what it means
1572         if PREFERRED_*_RELOAD_CLASS return NO_REGS.
1573         * config/i386/i386.c (ix86_preferred_reload_class): Force
1574         using SSE registers (and return NO_REGS for floating-point
1575         constants) if math is done with SSE.
1576         (ix86_preferred_output_reload_class): New.
1577         * config/i386/i386-protos.h (ix86_preferred_output_reload_class): New.
1578         * config/i386/i386.h (PREFERRED_OUTPUT_RELOAD_CLASS): New.
1579         * config/i386/i386.md: Remove # register preferences.
1580
1581 2006-04-02  Sebastian Pop  <pop@cri.ensmp.fr>
1582
1583         PR bootstrap/26992
1584         * tree-scalar-evolution.c (compute_overall_effect_of_inner_loop,
1585         chrec_is_positive, set_nb_iterations_in_loop): Use a variable for
1586         the type of nb_iter.
1587         (instantiate_parameters_1): Convert the operands before calling
1588         chrec_fold_minus, chrec_fold_plus, or chrec_fold_multiply.
1589         * tree-data-ref.c (can_use_analyze_subscript_affine_affine): Same.
1590
1591 2006-04-02  Roger Sayle  <roger@eyesopen.com>
1592
1593         * builtins.c (dummy_object): Use build_int_cst instead of convert.
1594         * tree-ssa-ccp.c (maybe_fold_stmt_addition): Use fold_convert
1595         instead of convert.
1596         * dojump.c (do_jump): Likewise.
1597         * expr.h (ADD_PARM_SIZE, SUB_PARM_SIZE, ARGS_SIZE_TREE): Likewise.
1598         * gimplify.c (gimple_boolify, gimplify_init_constructor,
1599         gimplify_boolean_expr): Likewise.
1600         * emit-rtl.c (set_mem_attributes_minus_bitpos): Likewise.
1601         * varasm.c (array_size_for_constructor): Likewise.
1602         * tree-object-size.c (compute_object_offset): Likewise.
1603
1604 2006-04-02  Roger Sayle  <roger@eyesopen.com>
1605
1606         PR middle-end/26977
1607         * expr.c (emit_group_store): Check whether simplify_gen_subreg returns
1608         NULL_RTX, indicating it couldn't create a valid paradoxical subreg.
1609
1610 2006-04-02  Sebastian Pop  <pop@cri.ensmp.fr>
1611
1612         PR tree-optimization/26939
1613         * tree-chrec.c (chrec_merge): Use eq_evolutions_p.
1614
1615 2006-04-02  Sebastian Pop  <pop@cri.ensmp.fr>
1616
1617         * tree-scalar-evolution.c (add_to_evolution_1): Pass an extra argument
1618         at_stmt.  Convert the type of operands before calling
1619         build_polynomial_chrec.
1620         (add_to_evolution): Pass an extra argument at_stmt.  Adjust the call to
1621         add_to_evolution_1.
1622         (follow_ssa_edge_in_rhs): Adjust call to add_to_evolution.
1623         (instantiate_parameters_1): Convert the type of operands before calling
1624         build_polynomial_chrec.
1625         * tree-chrec.c (chrec_fold_poly_cst, chrec_fold_plus_poly_poly,
1626         chrec_fold_multiply_poly_poly, chrec_replace_initial_condition,
1627         reset_evolution_in_loop): Insert asserts to check the types of the
1628         operands.
1629         (chrec_type): Moved...
1630         (eq_evolutions_p): Use operand_equal_p.
1631         * tree-chrec.h (build_polynomial_chrec): Insert an assert to check
1632         the types of the operands.
1633         (chrec_type): ...here.
1634         * tree-data-ref.c (create_data_ref): Convert the operands before
1635         calling chrec_replace_initial_condition.
1636         (same_access_functions, analyze_subscript_affine_affine,
1637         analyze_miv_subscript, all_chrecs_equal_p): Use eq_evolutions_p.
1638         (compute_subscript_distance, analyze_ziv_subscript,
1639         analyze_siv_subscript_cst_affine, compute_overlap_steps_for_affine_1_2,
1640         analyze_miv_subscript): Convert the operands before calling
1641         chrec_fold_minus or chrec_fold_plus.
1642
1643 2006-04-02  Sebastian Pop  <pop@cri.ensmp.fr>
1644
1645         * tree-data-ref.c (compute_all_dependences): Use a pointer to
1646         the dependence_relations vector.
1647         (compute_data_dependences_for_loop): Adjust call to
1648         compute_all_dependences.
1649
1650 2006-04-01  Roger Sayle  <roger@eyesopen.com>
1651             Richard Henderson  <rth@redhat.com>
1652
1653         * gimplify.c (gimplify_scan_omp_clauses) <OMP_CLAUSE_IF>: Call
1654         gimple_boolify on the condition before calling gimplify_expr.
1655
1656 2006-03-31  Bob Wilson  <bob.wilson@acm.org>
1657
1658         * config/xtensa/lib1funcs.asm: Rename abi_entry/abi_return macros
1659         to leaf_entry/leaf_return.  Change leaf_entry to add 16 bytes to
1660         the frame size.  Update to use the new macros.
1661         * config/xtensa/ieee754-sf.S: Use new leaf_entry/leaf_return macros.
1662         * config/xtensa/ieee754-df.S: Likewise.
1663
1664 2006-03-31  Richard Henderson  <rth@redhat.com>
1665
1666         * tree-cfg.c (make_ctrl_stmt_edges, make_exit_edges): Merge into...
1667         (make_edges): ... here.  Control fallthru creation with a local
1668         variable.  Do not play with fake edges.
1669         (make_omp_sections_edges): Don't set EDGE_ABNORMAL.
1670         (make_goto_expr_edges): Don't play with fake edges.  Make for_call
1671         a boolean.
1672
1673 2006-04-01  Joseph S. Myers  <joseph@codesourcery.com>
1674
1675         * dwarf2.h (DW64_CIE_ID): Define.
1676         * dwarf2out.c (DWARF_CIE_ID): Define.
1677         (output_call_frame_info): Output 0xffffffff before standard 8-byte
1678         length header.  Use DWARF_CIE_ID.
1679         (value_format): Use DW_FORM_data4 or DW_FORM_data8 for
1680         dw_val_class_loc_list depending on DWARF_OFFSET_SIZE.
1681
1682 2006-03-31  Kaz Kojima  <kkojima@gcc.gnu.org>
1683
1684         * config/sh/linux-atomic.asm: New file.
1685         * config/sh/t-linux (LIB2FUNCS_EXTRA): Add linux-atomic.asm.
1686
1687 2006-03-31  DJ Delorie  <dj@redhat.com>
1688
1689         * config/m32c/cond.md: Set condition flags properly throughout.
1690         * config/m32c/minmax.md: Likewise.
1691         * config/m32c/prologue.md: Likewise.
1692         * config/m32c/bitops.md: Likewise.
1693         * config/m32c/muldiv.md: Likewise.
1694         * config/m32c/mov.md: Likewise.
1695         * config/m32c/addsub.md: Likewise.
1696         * config/m32c/m32c.md: Likewise.
1697         * config/m32c/jump.md: Likewise.
1698         * config/m32c/shift.md: Likewise.
1699
1700         * config/m32c/cond.md (cmp<mode>): Call m32c_output_compare to
1701         conditionally output the pattern for this.
1702         * config/m32c/m32c.c (flags_needed_for_conditional): New.
1703         (m32c_compare_redundant): New.
1704         (m32c_output_compare): New.
1705         * config/m32c/m32c-protos.h (m32c_output_compare): New.
1706
1707         * config/m32c/m32c.c (m32c_prepare_shift): Fix logic to clobber
1708         dest, not src.  Allow other 4-byte modes.
1709
1710 2006-03-30  Denis Chertykov  <denisc@overta.ru>
1711
1712         * doc/md.texi: Refer to avr/constraints.md instead of
1713         avr/avr.h.
1714
1715 2006-03-30  Roger Sayle  <roger@eyesopen.com>
1716
1717         * expr.c (emit_group_store): Make BYTEPOS a HOST_WIDE_INT to
1718         signed vs. unsigned comparison failures on some hosts.
1719
1720 2006-03-31  Alan Modra  <amodra@bigpond.net.au>
1721
1722         PR target/26459
1723         * config/rs6000/rs6000.h (CANNOT_CHANGE_MODE_CLASS): Limit 2003-12-08
1724         change to FLOAT_REGS.
1725
1726         * config/rs6000/rs6000.c (rs6000_explicit_options): Add ieee.
1727         (rs6000_override_options): Use it.
1728         (rs6000_handle_option): Set it.  Set rs6000_explicit_options.abi
1729         only for -mabi=spe/no-spe and -mabi=altivec.
1730
1731 2006-03-30  Geoffrey Keating  <geoffk@apple.com>
1732
1733         * config/darwin.h (LINK_COMMAND_SPEC): Don't try to protect %S with
1734         !Zdynamiclib.
1735
1736 2006-03-30  Carlos O'Donell  <carlos@codesourcery.com>
1737
1738         * Makefile.in: Rename docdir to gcc_docdir.
1739
1740 2006-03-30  Roger Sayle  <roger@eyesopen.com>
1741
1742         PR target/17959
1743         * expr.c (emit_group_store):  Optimize group stores into a pseudo
1744         register by using a paradoxical subreg to initialize the destination
1745         if the first or last member of the group specifies a "low part".
1746
1747 2006-03-30  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
1748
1749         PR target/26734
1750         * rtl.def (DEPS_LIST): Change type of the second operand to 'int'.
1751         * target.h (struct gcc_target.speculate_insn): Change type of the
1752         second parameter to 'int'.
1753         * lists.c (alloc_DEPS_LIST): Change signature.  Update reference to
1754         the second operand of the DEPS_LIST.
1755         (copy_DEPS_LIST_list): Update reference to the second operand of the
1756         DEPS_LIST.
1757         * rtl.h (alloc_DEPS_LIST): Update signature.
1758         * sched-int.h (ds_t): Change typedef to 'int'.
1759         (DEP_STATUS, BITS_PER_DEP_STATUS): Update.
1760
1761 2006-03-30  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
1762
1763         * haifa-sched.c (try_ready): Change condition to restore
1764         non-speculative pattern of the instruction.
1765         (process_insn_depend_be_in_spec): Code to keep probability of the
1766         speculative dependence non-decreasing.
1767
1768 2006-03-30  Jie Zhang  <jie.zhang@analog.com>
1769
1770         * config/bfin/bfin.c (single_move_for_strmov): Renamed to...
1771         (single_move_for_movmem): ... this. Also change all uses.
1772         (bfin_expand_strmov): Renamed to...
1773         (bfin_expand_movmem): ... this. Also change all uses.
1774         * config/bfin/bfin.md (movstrsi): Renamed to...
1775         (movstrsi): ...this.
1776
1777 2006-03-30  Paolo Bonzini  <bonzini@gnu.org>
1778
1779         PR tree-optimization/26830
1780
1781         * tree-ssa-copy.c (copy_prop_visit_assignment): Do not check loop depth.
1782         (copy_prop_visit_stmt): Remove write-only variable ann.
1783         (init_copy_prop): Check variable loop depth here.  Do not simulate
1784         memory-tag and virtual operand PHIs except for store copy prop.
1785
1786 2006-03-30  Richard Guenther  <rguenther@suse.de>
1787
1788         * config/i386/i386.c: Remove builtins for SSE2 ABI intrinsic
1789         variants with double arguments.
1790
1791 2006-03-29  David Edelsohn  <edelsohn@gnu.org>
1792
1793         * genpreds.c (write_tm_constrs_h): Delete variable p.
1794         * genconditions.c (write_header): Add tm-constrs.h to included
1795         headers.
1796         * genpeep.c (main): Add toplev.h to included headers.
1797         * Makefile.in (build/gencondmd.o): Add tm-constrs.h dependency.
1798         (build/genpeep.o): Add toplev.h dependency.
1799         * config/rs6000/constraints.md: Add "W" constraint.
1800
1801 2006-03-29  Roger Sayle  <roger@eyesopen.com>
1802
1803         * stor-layout.c (mode_for_size_tree): Remove restiction on type
1804         sizes by correctly testing whether the size fits a host integer.
1805         (initialize_sizetypes): Use set_min_and_max_values_for_integral_type
1806         to correctly set TYPE_MIN_VALUE and TYPE_MAX_VALUE to the full
1807         SImode range for the default sizetype and bitsizetype.
1808
1809 2006-03-29  Roger Sayle  <roger@eyesopen.com>
1810
1811         * convert.c (convert_to_pointer): Preserve the TREE_OVERFLOW
1812         and TREE_CONSTANT_OVERFLOW bits of the argument.  Return
1813         quickly if the argument is already of the correct type.
1814         Call fold_build1 instead of build1.  Tidy up blank lines.
1815
1816 2006-03-29  David Edelsohn  <edelsohn@gnu.org>
1817
1818         * genemit.c (main): Add tm-constrs.h to included headers.
1819         * genoutput.c (output_prologue): Add tm-constrs.h to included headers.
1820         * genpeep.c (main): Add tm-constrs.h to included headers.
1821         * genpreds.c (write_satisfies_constraint_fns): Rename to ...
1822         (write_tm_constrs_h): this and write complete file.
1823         (write_tm_preds_h): Do not emit satisfies_constraint fns.
1824         (write_insn_preds_c): Add tm-constrs.h to included headers.
1825         (gen_constrs): New variable.
1826         (parse_option): Parse "-c".
1827         (main): Invoke write_tm_constrs_h.
1828         * genrecog.c (write_header): Add tm-constrs.h to included headers.
1829         * Makefile.in (STAGECOPYSTUFF): Add tm-constrs.h.
1830         (object_out_file): Add tm-constrs.h dependency.
1831         (insn-emit.o): Same.
1832         (insn-output.o): Same.
1833         (insn-peep.o): Same.
1834         (insn-preds.o): Same.
1835         (insn-recog.o): Same.
1836         (tm-constsr.h): New target.
1837         (s-constrs-h): New target.
1838
1839         * config/rs6000/constraints.md: New file.
1840         * config/rs6000/rs6000.c: Include tm-constrs.h.
1841         (num_insn_constant_wide): Convert to satisfies_constraint.
1842         (rs6000_rtx_costs): Convert to satisfies_constraint.
1843         * config/rs6000/rs6000.h (REG_CLASS_FROM_LETTER): Delete.
1844         (CONST_OK_FOR_LETTER_P): Delete.
1845         (CONST_DOUBLE_OK_FOR_LETTER_P): Delete.
1846         (EXTRA_CONSTRAINT): Delete.
1847         (EXTRA_MEMORY_CONSTRAINT): Delete.
1848         (EXTRA_ADDRESS_CONSTRAINT): Delete.
1849         * config/rs6000/predicates.md: Convert to satisfies_constraint.
1850         * config/rs6000/rs6000.md: Include constraints.md.  Convert to
1851         satisfies_constraint.
1852
1853         * config/i386/i386.c: Include tm-constrs.h.
1854
1855 2006-03-29  Sebastian Pop  <pop@cri.ensmp.fr>
1856
1857         * tree-loop-linear.c (compute_data_dependences_for_loop): Adjust calls.
1858         * tree-data-ref.c (find_data_references_in_loop,
1859         compute_data_dependences_for_loop): Use pointers to VEC.
1860         (analyze_all_data_dependences): Adjust calls.
1861         * tree-data-ref.h (find_data_references_in_loop,
1862         compute_data_dependences_for_loop): Adjust declarations.
1863         * tree-vect-analyze.c (vect_analyze_data_refs): Adjust call to
1864         compute_data_dependences_for_loop.
1865
1866 2006-03-29  Paul Brook  <paul@codesourcery.com>
1867
1868         * config/arm/vfp.md (movsf_vfp): Disparage w<->r alternatives.
1869         (movdf_vfp): Ditto.
1870
1871 2006-03-29  Sebastian Pop  <pop@cri.ensmp.fr>
1872
1873         PR tree-optimization/26859
1874         * tree-ssa-loop-niter.c (infer_loop_bounds_from_undefined): Avoid
1875         division by zero.
1876         (convert_step): Remove TREE_OVERFLOW and TREE_CONSTANT_OVERFLOW flags
1877         for the step after fold_convert.
1878
1879 2006-03-29  Paul Brook  <paul@codesourcery.com>
1880
1881         * reload1.c (choose_reload_regs): Check for all RTX_AUTOINC operators.
1882         (inc_for_reload): Handle PRE_MODIFY and POST_MODIFY addresses.
1883
1884 2006-03-29  Paul Brook  <paul@codesourcery.com>
1885
1886         PR middle-end/23623
1887         * targhooks.c (default_narrow_bitfield): New fuction.
1888         * targhooks.h (default_narrow_bitfield): add prototype.
1889         * target.h (gcc_target): Add narrow_volatile_bitfield.
1890         * target-def.h (TARGET_NARROW_VOLATILE_BITFIELD): Define.
1891         * stor-layout.c (get_best_mode): Use targetm.narrow_volatile_bitfield.
1892         * doc/tm.texi: Document TARGET_NARROW_VOLATILE_BITFIELDS.
1893         * config/arm/arm.c (TARGET_NARROW_VOLATILE_BITFIELD): Define.
1894
1895 2006-03-29  Andreas Krebbel  <krebbel1@de.ibm.com>
1896
1897         * config.gcc (s390-*-linux-*, s390x-*-linux*): Add t-dfprules to
1898         tmake_file.
1899         * config/s390/s390.c (S390_scalar_mode_supported_p): New function.
1900         (NR_C_MODES): Add TDmode, DDmode and SDmode.
1901         (s390_output_pool_entry, ): Accept MODE_DECIMAL_FLOAT.
1902         (s390_hard_regno_mode_ok): Disallow TDmode in integer regs.
1903         (s390_function_arg_float): Allow SDmode and DDmode values to be
1904         passed in floating point registers.
1905         (s390_function_arg_integer, s390_function_value): Replace MODE_FLOAT
1906         check with SCALAR_FLOAT_MODE_P.
1907         (TARGET_SCALAR_MODE_SUPPORTED_P): Define target macro.
1908
1909 2006-03-28  Zdenek Dvorak <dvorakz@suse.cz>
1910
1911         PR tree-optimization/25985
1912         * tree-ssa-loop-niter.c (number_of_iterations_le,
1913         number_of_iterations_ne): Make comments more precise.
1914         (number_of_iterations_cond): Add only_exit argument.  Use the
1915         fact that signed variables do not overflow only when only_exit
1916         is true.
1917         (loop_only_exit_p): New.
1918         (number_of_iterations_exit): Pass result of loop_only_exit_p to
1919         number_of_iterations_cond.
1920
1921 2006-03-28  Zdenek Dvorak <dvorakz@suse.cz>
1922
1923         PR tree-optimization/26643
1924         * tree-ssa-loop-ivopts.c (find_interesting_uses_address): Do not handle
1925         bit_field_refs.
1926
1927 2006-03-28  Kaz Kojima  <kkojima@gcc.gnu.org>
1928
1929         * config/sh/sh.md (udivsi3_i4_int): Clobber MACH_REG and MACL_REG.
1930         (divsi3_i4_int): Likewise.
1931
1932 2006-03-28  Roger Sayle   <roger@eyesopen.com>
1933
1934         * expr.c (emit_group_store): Only create a new pseudo reg if the
1935         quantity it needs to hold isn't already a suitable pseudo.
1936
1937 2006-03-28  Jeff Law  <law@redhat.com>
1938
1939         * timevar.def (TV_TREE_PHI_CPROP): New timevar.
1940         * tree-ssa-dom.c (pass_phi_only_cprop): Use it.
1941
1942 2006-03-28  Roger Sayle  <roger@eyesopen.com>
1943
1944         * fold-const.c (fold_binary) <BIT_XOR_EXPR>: Fold (X & Y) ^ Y as
1945         the equivalent ~X & Y, and the symmetry related transformations.
1946         (fold_binary) <BIT_AND_EXPR>: Similarly, fold (X ^ Y) & Y as
1947         ~X & Y, and symmetry related transforms.
1948
1949 2006-03-28  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
1950
1951         Revert my 2006-03-27 patches.
1952
1953 2006-03-28  Roger Sayle  <roger@eyesopen.com>
1954
1955         * fold-const.c (fold_unary) <NOP_EXPR>: Fold (T1)(~(T2)X) as
1956         ~(T1)X, when T1 and T2 are integer types of the same precision
1957         and (T2)X isn't an extension.
1958
1959 2006-03-28  Jeff Law  <law@redhat.com>
1960
1961         PR tree-optimization/26796
1962         * tree-ssa-dom.c (propagate_rhs_into_lhs): Queue blocks which
1963         need EH edge cleanups rather than purging them immediately.
1964         (eliminate_degenerate_phis): Handle queued EH cleanups.
1965
1966 2006-03-28  Daniel Berlin  <dberlin@dberlin.org>
1967
1968         * tree-ssa-alias.c (create_sft): Initially inherit TREE_ADDRESSABLE
1969         from parent_var.
1970
1971 2006-03-27  Roger Sayle  <roger@eyesopen.com>
1972
1973         PR middle-end/22524
1974         * fold-const.c (fold_binary) <MINUS_EXPR>: Call fold_convert to
1975         cast BIT_NOT_EXPR operand to the correct type.
1976
1977 2006-03-27  Sebastian Pop  <pop@cri.ensmp.fr>
1978
1979         * tree-loop-linear.c: Don't include varray.h.
1980         (gather_interchange_stats, try_interchange_loops,
1981         linear_transform_loops): Use VEC instead of VARRAY.
1982         * lambda-mat.c: Don't include varray.h.
1983         * tree-chrec.c: Same.
1984         * lambda-trans.c: Same.
1985         * tree-vectorizer.c (new_loop_vec_info, destroy_loop_vec_info): Use
1986         VEC instead of VARRAY.
1987         * tree-vectorizer.h: Idem.
1988         * tree-data-ref.c (dump_data_references,
1989         dump_data_dependence_relations, dump_dist_dir_vectors, dump_ddrs,
1990         initialize_data_dependence_relation, finalize_ddr_dependent,
1991         compute_all_dependences, find_data_references_in_loop,
1992         compute_data_dependences_for_loop, analyze_all_data_dependences,
1993         free_dependence_relation, free_dependence_relations,
1994         free_data_refs): Idem.
1995         * tree-data-ref.h (data_reference_p, subscript_p): New.
1996         (data_dependence_relation, DDR_SUBSCRIPT, DDR_NUM_SUBSCRIPTS): Use
1997         VEC instead of VARRAY.
1998         (DDR_SUBSCRIPTS_VECTOR_INIT): Removed.
1999         (find_data_references_in_loop, compute_data_dependences_for_loop,
2000         dump_ddrs, dump_dist_dir_vectors, dump_data_references,
2001         dump_data_dependence_relations, free_dependence_relations,
2002         free_data_refs): Adjust declaration.
2003         (lambda_transform_legal_p): Move declaration here...
2004         * tree-vect-analyze.c (vect_analyze_data_ref_dependences,
2005         vect_compute_data_refs_alignment, vect_verify_datarefs_alignment,
2006         vect_enhance_data_refs_alignment, vect_analyze_data_ref_accesses,
2007         vect_analyze_data_refs): Use VEC instead of VARRAY.
2008         * lambda.h (lambda_transform_legal_p): ...from here.
2009         * lambda-code.c (lambda_transform_legal_p): Use VEC instead of VARRAY.
2010         * tree-vect-transform.c (vect_update_inits_of_drs): Idem.
2011         * Makefile.in (tree-loop-linear.o, lambda-mat.o, lambda-trans.o,
2012         tree-chrec.o): Don't depend on VARRAY_H.
2013
2014 2006-03-27  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
2015
2016         * rtl.def (Copyright): Update date.
2017         (DEPS_LIST): Change type of the second operand to 'int'.
2018         * target.h (Copyright): Update date.
2019         (struct gcc_target.speculate_insn): Change type of the second parameter
2020         to 'int'.
2021         * lists.c (Copyright): Update date.
2022         (alloc_DEPS_LIST): Change signature.  Update reference to the second
2023         operand of the DEPS_LIST.
2024         (copy_DEPS_LIST_list): Update reference to the second operand of the
2025         DEPS_LIST.
2026         * rtl.h (Copyright): Update date.
2027         (alloc_DEPS_LIST): Update signature.
2028         * sched-int.h (Copyright): Update date.
2029         (ds_t): Change typedef to 'int'.
2030         (DEP_STATUS, BITS_PER_DEP_STATUS): Update.
2031
2032 2006-03-27  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
2033
2034         * haifa-sched.c (Copyright): Update date.
2035         (try_ready): Change condition to restore non-speculative pattern
2036         of the instruction.
2037         (process_insn_depend_be_in_spec): Code to keep probability of the
2038         speculative dependence non-decreasing.
2039
2040 2006-03-27  Bernd Schmidt  <bernd.schmidt@analog.com>
2041
2042         * regrename.c (replace_oldest_value_addr): Initialize a variable to
2043         shut up the compiler.
2044
2045 2006-03-27  J"orn Rennecke <joern.rennecke@st.com>
2046
2047         * config/sh/t-sh ($(T)libic_invalidate_array_4-100.a): Fix rule
2048         to use lib prefix for target.
2049         ($(T)libic_invalidate_array_4-200.a): Likewise.
2050         ($(T)libic_invalidate_array_4a.a): Likewise.
2051
2052 2006-03-27  Andrew Stubbs <andrew.stubbs@st.com>
2053             J"orn Rennecke <joern.rennecke@st.com>
2054
2055         * superh.opt: New file.
2056         * sh.c (boardtype, osruntime): Remove.
2057         * superh.h (SUBTARGET_OPTIONS): Remove.
2058         * config.gcc (sh*-superh-elf): Add sh/superh.opt to extra_options.
2059
2060         * config.gcc (sh*-*-*): Don't use c-c ranges for tr.  Quote sed
2061         arguments with ^ and/or [].
2062
2063         * config.gcc (sh-*-*): Add quoting to account for quirk of
2064         Solaris /bin/sh.
2065         Replace == with = in enable_incomplete_targets test.
2066
2067         * config/sh/superh.h (SUBTARGET_LINK_SPEC): Replace LITTLE_ENDIAN_BIT
2068         with MASK_LITTLE_ENDIAN.
2069
2070         * config.gcc (sh*-superh-elf): Add sh/superh.h to tm_file.
2071         * config/sh/sh.opt: Added to some comments.
2072         * config/sh/superh.h: Removed some chaff.
2073
2074         * config/sh/sh.opt: Add m4-[1234]00* options.
2075         * config/sh/sh.c (sh_handle_option): Likewise.
2076         * config/sh/t-sh (IC_EXTRA_PARTS, EXTRA_MULTILIB_PARTS): Define.
2077         (ic_invalidate_array_4-100.o): New rule.
2078         ($(T)libic_invalidate_array_4-100.a): Likewise.
2079         (ic_invalidate_array_4-200.o): Likewise.
2080         ($(T)libic_invalidate_array_4-200.a): Likewise.
2081         (ic_invalidate_array_4a.o): Likewise.
2082         ($(T)libic_invalidate_array_4a.a): Likewise.
2083         * config/sh/t-elf (EXTRA_MULTILIB_PARTS): Add IC_EXTRA_PARTS.
2084         * config/sh/embed-elf.h (LIBGCC_SPEC): Add clauses for m4-100*,
2085         m4-200*, and m4a*.
2086         * config/sh/crt1.asm: Merged in profiling code.
2087         * config/sh/superh.h (STARTFILE_SPEC): Override.
2088         * config/sh/t-superh: Override EXTRA_MULTILIB_PARTS.
2089         Add rules for $(T)crt1-mmu.o, $(T)gcrt1-mmu.o and $(T)gcrt1.o.
2090         * config.gcc (sh*-superh-elf): Add t-superh to tmake_file.
2091
2092         * t-sh (MULTILIB_MATCHES): Add sh4-[1245]00* variants.
2093         * config/sh/t-superh: Removed now-redundant MULTILIB_OPTIONS /
2094         MULTILIB_DIRNAMES / MULTILIB_MATCHES settings.
2095
2096         * sh.opt (mpretend-cmove): New option.
2097         * sh.h (OPERRIDE_OPTIONS): Switch it off if not TARGET_SH1.
2098         * sh.md (movsicc_t_false, movsicc_t_tru): New patterns.
2099         (movsicc): Add TARGET_PRETEND_CMOVE code.
2100
2101 2006-03-27  Andreas Krebbel  <krebbel1@de.ibm.com>
2102
2103         * config/s390/s390-protos.h (s390_hard_regno_mode_ok,
2104         s390_class_max_nregs): New function prototypes.
2105         * config/s390/s390.c (REGNO_PAIR_OK): New macro.
2106         (s390_hard_regno_mode_ok, s390_class_max_nregs): New functions.
2107         * config/s390/s390.h (HARD_REGNO_NREGS, HARD_REGNO_MODE_OK,
2108         CLASS_MAX_NREGS): Macro bodies replaced by function calls.
2109
2110 2006-03-26  Geoffrey Keating  <geoffk@apple.com>
2111
2112         * dwarf2out.c (add_location_or_const_value_attribute): Call
2113         tree_add_const_value_attribute if nothing else works.
2114         (reference_to_unused): New.
2115         (rtl_for_decl_init): Use reference_to_unused to decide whether
2116         to output an initializer.
2117
2118 2006-03-27  Alan Modra  <amodra@bigpond.net.au>
2119
2120         PR target/26459
2121         * config/rs6000/rs6000.md (DF reg move peephole): Prevent
2122         peephole removing spe frob_di_df_2.
2123
2124 2006-03-26  Sebastian Pop  <pop@cri.ensmp.fr>
2125
2126         * tree-data-ref.c: Rename DDR_SIZE_VECT to DDR_NB_LOOPS.
2127         (subscript_dependence_tester_1): Declared.
2128         (print_dir_vectors, print_dist_vectors): New.
2129         (debug_data_dependence_relation): New.
2130         (dump_data_dependence_relation): Print more details.
2131         (initialize_data_dependence_relation): Initialize DDR_LOOP_NEST.
2132         (analyze_subscript_affine_affine): Don't ICE when gcd_alpha_beta is 0.
2133         (save_dist_v, save_dir_v, add_outer_distances,
2134         build_classic_dist_vector_1): New.
2135         (build_classic_dist_vector): Rewrite to work on DDR_LOOP_NEST.
2136         Don't test for lambda_vector_lexico_pos.
2137         (same_access_functions, add_multivariate_self_dist,
2138         add_other_self_distances, dir_from_dist): New.
2139         (build_classic_dir_vector): Replace implementation almost identical to
2140         build_classic_dist_vector with a walk of DDR_DIST_VECTS with a call to
2141         dir_from_dist.
2142         (subscript_dependence_tester_1): New.
2143         (subscript_dependence_tester): Handle the lexicographically negative
2144         distance vectors by recomputing the dependence relation.
2145         (compute_affine_dependence): Remove parameter loop_nest_depth.
2146         (compute_self_dependence): Don't call compute_subscript_distance.
2147         (compute_all_dependences): Remove parameters nb_loops, loop_nest_depth.
2148         Add a parameter for the loop_nest.
2149         (find_loop_nest_1, find_loop_nest): New.
2150         (compute_data_dependences_for_loop): Compute the loop nest, and give
2151         up if the nest is not well formed.
2152         * tree-data-ref.h (loop_p): New.
2153         (struct data_dependence_relation): Replace size_vect field with
2154         loop_nest, a vec of loops.
2155         (DDR_SIZE_VECT): Renamed DDR_NB_LOOPS.
2156         (DDR_LOOP_NEST): New.
2157         (print_dir_vectors, print_dist_vectors,
2158         debug_data_dependence_relation): Declared.
2159         (index_in_loop_nest): New.
2160         * tree-vect-analyze.c (vect_analyze_data_ref_dependence): Use
2161         DDR_LOOP_NEST and index_in_loop_nest to determine the dependence
2162         distance.
2163
2164 2006-03-25  Adam Nemet  <anemet@caviumnetworks.com>
2165
2166         * simplify-rtx.c (simplify_relational_operation): Call
2167         simplify_relational_operation_1 even if mode is VOIDmode.
2168
2169 2006-03-25  Daniel Berlin  <dberlin@dberlin.org>
2170
2171         PR tree-optimization/26804
2172         * tree.h (DECL_CALL_CLOBBERED): New macro.
2173         (tree_decl_common): Add call_clobbered_flag.
2174         * tree-flow-inline.h (is_call_clobbered): Use DECL_CALL_CLOBBERED.
2175         (mark_call_clobbered): Set DECL_CALL_CLOBBERED.
2176         (clear_call_clobbered): Clear DECL_CALL_CLOBBERED.
2177         (mark_non_addressable): Ditto.
2178         * tree-ssa.c (verify_call_clobbered): New function.
2179         (verify_alias_info): Use it.
2180         * tree-pass.h (pass_reset_cc_flags): New prototype.
2181         * tree-ssa-alias.c (pass_reset_cc_flags): New structure.
2182         (reset_cc_flags): New function.
2183         * passes.c (init_optimization_passes): Call reset_cc_flags after
2184         initializing referenced_vars.
2185
2186 2006-03-25  Uros Bizjak  <uros@kss-loka.si>
2187             Roger Sayle  <roger@eyesopen.com>
2188
2189         PR middle-end/26717
2190         * fold-const.c (fold_binary) [RDIV_EXPR]: Do not optimize A / A
2191         to 1.0 for non-real operands. Implement A / A optimization for
2192         complex operands.
2193
2194 2006-03-25  H.J. Lu  <hongjiu.lu@intel.com>
2195
2196         * config/i386/i386.c (size_cost): Correct the comment for
2197         cost of storing fp registers.
2198         (i386_cost): Likewise.
2199         (i486_cost): Likewise.
2200         (pentium_cost): Likewise.
2201         (pentiumpro_cost): Likewise.
2202         (k6_cost): Likewise.
2203         (athlon_cost): Likewise.
2204         (k8_cost): Likewise.
2205         (pentium4_cost): Likewise.
2206         (nocona_cost): Likewise.
2207         (generic64_cost): Likewise.
2208         (generic32_cost): Likewise.
2209
2210 2006-03-24  Denis Chertykov  <denisc@overta.ru>
2211
2212         * config/avr/avr-protos.h (extra_constraint): Delete.
2213         (extra_constraint_Q): New declaration.
2214         * config/avr/constraints.md: New file.
2215         * config/avr/avr.md: Include it.
2216         (REG_X, REG_Y, REG_Z, REG_W): New constants.
2217         (TMP_REGNO, ZERO_REGNO): Likewise.
2218         (UNSPEC_STRLEN, UNSPEC_INDEX_JMP): Likewise.
2219         * config/avr/avr.c (avr_reg_class_from_letter): Delete.
2220         (extra_constraint): Delete.
2221         (extra_constraint_Q): Test for memory constraint 'Q'.
2222         * config/avr/avr.h (REG_X,REG_Y,REG_Z,REG_W): Delete.
2223         (REG_CLASS_FROM_LETTER): Delete.
2224         (CONST_OK_FOR_LETTER_P): Delete.
2225         (CONST_DOUBLE_OK_FOR_LETTER_P): Delete.
2226         (EXTRA_CONSTRAINT): Delete.
2227         (TMP_REGNO): Delete.
2228         (ZERO_REGNO): Delete.
2229
2230 2006-03-24  Jeff Law  <law@redhat.com>
2231
2232         * tree-ssa-dom.c (propagate_rhs_into_lhs): Don't call update_stmt
2233         directly.  Call mark_new_vars_to_rename slightly earlier.
2234
2235 2006-03-24  Geoffrey Keating  <geoffk@apple.com>
2236
2237         * dwarf2out.c (is_c_family): Understand new DWARF3 language types.
2238         (is_cxx): Likewise.
2239         (gen_compile_unit_die): Use new language types for Objective-C and
2240         Objective-C++.
2241         (dwarf2out_decl): Use is_cxx rather than testing explicitly against
2242         DW_LANG_C_plus_plus.
2243
2244         PR 26793
2245         * config/t-darwin (crt3.o): Work around bug 26840.
2246         * config/darwin-crt3.c: Rewrite.
2247         * config/darwin.h (STARTFILE_SPEC): Don't use -l for crt3.o.
2248
2249 2006-03-24  Carlos O'Donell  <carlos@codesourcery.com>
2250
2251         * doc/invoke.texi: Document -femit-class-debug-always
2252         * common.opt: Add -femit-class-debug-always.
2253
2254 2006-03-24  Andreas Krebbel  <krebbel1@de.ibm.com>
2255
2256         * config/s390/s390.c (s390_decompose_address): Allow SImode for
2257         index and base register.
2258         (s390_expand_plug_operand, legitimate_address_p, preferred_la_operand_p,
2259         print_operand_address, print_operand): Replaced REG_OK_FOR_BASE_STRICT_P
2260         with REGNO_OK_FOR_BASE_P and REG_OK_FOR_INDEX_STRICT_P with
2261         REGNO_OK_FOR_INDEX_P.
2262         * config/s390/s390.h (REGNO_OK_FOR_INDEX_P): Replaced check with
2263         ADDR_REGNO_P.
2264         (REG_OK_FOR_INDEX_NONSTRICT_P, REG_OK_FOR_BASE_NONSTRICT_P,
2265         REG_OK_FOR_INDEX_STRICT_P, REG_OK_FOR_BASE_STRICT_P, REG_OK_FOR_INDEX_P,
2266         REG_OK_FOR_BASE_P): Definitions removed.
2267
2268 2006-03-24  Jakub Jelinek  <jakub@redhat.com>
2269
2270         PR middle-end/26611
2271         * gimplify.c (gimplify_bind_expr): Only call omp_add_variable on
2272         non-global variables that don't have DECL_SEEN_IN_BIND_EXPR_P bit
2273         set yet or weren't marked as local yet.
2274
2275 2006-03-24  Bernd Schmidt  <bernd.schmidt@analog.com>
2276
2277         * regrename.c (scan_rtx_address): Initialize a variable to shut up
2278         the compiler.
2279
2280 2006-03-24  Eric Botcazou  <ebotcazou@adacore.com>
2281
2282         * config/rs6000/rs6000-protos.h (rs6000_offsettable_memref_p): Declare.
2283         (rs6000_legitimate_small_data_p): Delete.
2284         * config/rs6000/rs6000.c (rs6000_offsettable_memref_p): New predicate.
2285         (rs6000_legitimate_small_data_p): Rename to legitimate_small_data_p
2286         and make static.  Add forward declaration.  Update uses.
2287         (rs6000_split_multireg_move): Use rs6000_offsettable_memref_p instead
2288         of offsettable_memref_p.
2289         * config/rs6000/rs6000.md (movdf_hardfloat32): Revert 2005-08-23 fix.
2290         Use rs6000_offsettable_memref_p instead of a less accurate predicate.
2291
2292 2006-03-24  Jeff Law  <law@redhat.com>
2293
2294         * tree-ssa-dom.c (propagate_rhs_into_lhs): Temporarily work
2295         around bug in immediate-use iterator.
2296
2297 2006-03-24  Alan Modra  <amodra@bigpond.net.au>
2298
2299         PR target/26607
2300         * config/rs6000/darwin-ldouble.c: Don't compile when __NO_FPRS__
2301         or __LITTLE_ENDIAN__.
2302
2303 2006-03-23  J"orn Rennecke <joern.rennecke@st.com>
2304
2305         * config/sh/divtab-sh4.c, config/sh/divcost-analysis: New files.
2306         * config/sh/lib1funcs.asm (div_table): Add !__SH5__ variant.
2307         * config/sh/t-sh (LIB1ASMFUNCS): Add _div_table.
2308         * config/sh/sh.opt (mdiv=): Amend description.
2309         * config/sh/sh.h (TARGET_DIVIDE_CALL_DIV1): New macro.
2310         (TARGET_DIVIDE_CALL_FP, TARGET_DIVIDE_CALL_TABLE): Likewise.
2311         (sh_divide_strategy_e): Add new members SH_DIV_CALL_DIV1,
2312         SH_DIV_CALL_FP, SH_DIV_CALL_TABLE and SH_DIV_INTRINSIC.
2313         (OVERRIDE_OPTIONS): Also process sh_div_str for TARGET_SH1.
2314         Calculate sh_divsi3_libfunc using TARGET_DIVIDE_* macros.
2315         * config/sh/sh.md (udivsi3_i4_int, divsi3_i4_int): New patterns.
2316         (udivsi3, divsi3): Use them.  Check TARGET_DIVIDE_CALL_TABLE /
2317         TARGET_DIVIDE_CALL_FP.
2318
2319 2006-03-23  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
2320
2321         * haifa-sched.c (choose_ready): Fix type of the local variable.
2322         Move local variables.  Add comment.
2323         (check_reg_live): Change signature.  Make callable from debugger.
2324         * sched-int.h (check_reg_live): Update signature.
2325         * sched-ebb.c (check_reg_live): Update parameters.
2326         * sched-rgn.c (check_reg_live): Ditto.
2327         (region_head_or_leaf_p): Check pointer before dereferencing.
2328         * config/ia64/ia64.c (ia64_set_sched_flags): Disable data speculation
2329         before reload on optimization levels below 1.
2330
2331 2006-03-23  Richard Henderson  <rth@redhat.com>
2332
2333         * config/alpha/alpha.c (alpha_legitimate_constant_p): Reject
2334         tls symbols.
2335
2336         PR target/26347
2337         * config/alpha/predicates.md (local_symbolic_operand): Reject
2338         weak symbols.
2339
2340 2006-03-23  Andrew Pinski  <pinskia@physics.uc.edu>
2341
2342         PR tree-opt/26795
2343         * tree-ssa-pre.c (create_value_expr_from): Don't reject
2344         expressions which have overflowed constants.
2345
2346 2006-03-23  Zdenek Dvorak <dvorakz@suse.cz>
2347
2348         * cse.c (cse_end_of_basic_block): Do not check for LOOP_END note.
2349
2350 2006-03-23  Zdenek Dvorak <dvorakz@suse.cz>
2351
2352         * cfgloopmanip.c (create_loop_notes): Removed.
2353         * final.c (final_scan_insn): Do not handle loop notes.
2354         * jump.c (squeeze_notes): Ditto.
2355         * cfglayout.c (skip_insns_after_block,
2356         duplicate_insn_chain): Ditto.
2357         * cfgcleanup.c (rest_of_handle_jump2): Do not call
2358         create_loop_notes.
2359         * cfgloop.h (create_loop_notes): Declaration removed.
2360
2361 2006-03-23  Richard Sandiford  <richard@codesourcery.com>
2362
2363         * varasm.c (output_constant_pool): Restore fnname and fndecl
2364         arguments.
2365         (assemble_start_function): Adjust call accordingly.
2366         (assemble_end_function): Likewise.
2367
2368 2006-03-22  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
2369
2370         PR mudflap/26789
2371         * tree-mudflap.c (mudflap_finish_file): Skip erroneous objects.
2372
2373         PR mudflap/26790
2374         * tree-mudflap.c (mf_xform_derefs_1): Return early on error_mark_node.
2375
2376 2006-03-22  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
2377
2378         PR driver/22600
2379         * system.h (ICE_EXIT_CODE): New macro.
2380         * diagnostic.c (diagnostic_count_diagnostic): Exit with ICE_EXIT_CODE.
2381         (diagnostic_action_after_output): Likewise.
2382         * gcc.c (fatal_ice): New function.
2383         (execute): Use it instead of fatal.
2384         (fancy_abort): Likewise.
2385         * doc/invoke.texi (-pass-exit-codes): Document return code for ICEs.
2386
2387 2006-03-22  Jeff Law  <law@redhat.com>
2388
2389         * loop-unroll.c (analyze_iv_to_split_insn): Handle
2390         iv_analyze_result returning false.
2391
2392 2006-03-22  Jie Zhang  <jie.zhang@analog.com>
2393
2394         * config/bfin/bfin.h (ASM_FORMAT_PRIVATE_NAME): Remove.
2395
2396 2006-03-22  Richard Henderson  <rth@redhat.com>
2397
2398         PR middle-end/26084
2399         * except.c (duplicate_eh_regions_0): New.
2400         (duplicate_eh_region_1): Duplicate the children of the node as
2401         well as the node itself.  Link them up properly.
2402         (duplicate_eh_region_2): Merge into ...
2403         (duplicate_eh_regions): ... here.  Take copy_region argument, and
2404         copy only a sub-tree if asked.  Simplify copying and fixup.
2405         (eh_region_outer_p): New.
2406         * except.h (duplicate_eh_regions): Update decl.
2407         (eh_region_outer_p): Declare.
2408         * omp-low.c (lower_omp_single): Fix eh region placement wrt OMP_RETURN.
2409         (lower_omp_master): Likewise.
2410         (lower_omp_ordered): Likewise.
2411         * tree-cfg.c (struct move_stmt_d): Add new_label_map.
2412         (move_stmt_r): Use it to remap labels.  Handle recursion vs
2413         remap_decls_p properly.
2414         (move_block_to_fn): Pass in new_label_map.  Remap RESX_EXPR.
2415         (find_outermost_region_in_block): New.
2416         (new_label_mapper): New.
2417         (move_sese_region_to_fn): Copy eh information to the new function
2418         properly.
2419         * tree-inline.c (copy_cfg_body): Update for new duplicate_eh_regions
2420         argument.
2421         * tree-pretty-print.c (dump_generic_node): Dump RESX_EXPR region
2422         number.
2423
2424 2006-03-22  Richard Sandiford  <richard@codesourcery.com>
2425
2426         * doc/md.texi (-mshared): Mention that -mshared code can be linked
2427         into shared libraries.
2428
2429 2006-03-22  Richard Sandiford  <richard@codesourcery.com>
2430
2431         * doc/md.texi: Refer to i386/constraints.md instead of
2432         i386/predicates.md.
2433         * config/i386/constraints.md: New file, extracted from...
2434         * config/i386/predicates.md: ...here.
2435         * config/i386/i386.md: Include constraints.md.
2436
2437 2006-03-21  Jason Merrill  <jason@redhat.com>
2438
2439         * builtins.c (expand_builtin_fork_or_exec): Fix pasto.
2440
2441         PR middle-end/20297
2442         * expr.c (init_block_move_fn): Force default visibility.
2443         (init_block_clear_fn): Likewise.
2444         * builtins.c (expand_builtin_fork_or_exec): Likewise.
2445         * targhooks.c (default_external_stack_protect_fail): Likewise.
2446
2447 2006-03-21  Richard Sandiford  <richard@codesourcery.com>
2448
2449         * config/mips/predicates.md (const_call_insn_operand): Allow direct
2450         calls to locally-defined functions if TARGET_ABSOLUTE_ABICALLS.
2451         * config/mips/mips.md (jal_macro): Test TARGET_ABSOLUTE_ABICALLS.
2452         Use TARGET_OLDABI instead of !TARGET_NEWABI.
2453         (loadgp): Use mips_current_loadgp_style.
2454         (loadgp_noshared): New pattern.
2455         (sibcall_internal): Use MIPS_CALL.
2456         (sibcall_value_internal): Likewise.
2457         (sibcall_value_multiple_internal): Likewise.
2458         (call_internal): Likewise.
2459         (call_value_internal): Likewise.
2460         (call_value_multiple_internal): Likewise.
2461         (call_split): Use MIPS_CALL and add an 'S' constraint.
2462         (call_value_split): Likewise.
2463         (call_value_multiple_split): Likewise.
2464         * config/mips/mips.opt (-mabicalls): Tweak docstring.
2465         (-mshared): New option.
2466         * config/mips/mips-protos.h (mips_loadgp_style): New enum.
2467         (mips_current_loadgp_style): Declare.
2468         * config/mips/mips.c (mips_classify_symbol): Avoid using
2469         SYMBOL_GOT_LOCAL if TARGET_ABSOLUTE_ABICALLS.  Use SYMBOL_GENERAL
2470         rather than SYMBOL_GOT_GLOBAL for locally-binding symbols if
2471         TARGET_ABSOLUTE_ABICALLS.
2472         (override_options): Adjust comments.  Improve the warning that is
2473         issued when -mabicalls and -G are used together.
2474         (mips_file_start): Remove comment.
2475         (mips_current_loadgp_style): New function.
2476         (mips_gnu_local_gp): New variable.
2477         (mips_emit_loadgp): Use mips_current_loadgp_style.  Handle
2478         LOADGP_ABSOLUTE.
2479         (mips_output_function_prologue): Use mips_current_laodgp_style.
2480         (mips_expand_prologue): Call mips_emit_loadgp before emitting
2481         the cprestore instruction.
2482         (mips_extra_live_on_entry): Fix reversed test.  Don't make $25
2483         live for TARGET_ABSOLUTE_ABICALLS.
2484         * config/mips/mips.h (TARGET_ABSOLUTE_ABICALLS): New macro.
2485         (ASM_SPEC): Pass down -mshared and -mno-shared.
2486         (MIPS_CALL): New macro.
2487         * config/mips/netbsd.h (TARGET_OS_CPP_BUILTINS): Remove __ABICALLS__
2488         definition.
2489         * doc/invoke.texi (-mabicalls): Update documentation.
2490         (-mshared): Document.
2491
2492 2006-03-21  Steve Ellcey  <sje@cup.hp.com>
2493
2494         * config/ia64/unwind-hpux.c: New file.
2495         * config/ia64/t-hpux: Add unwind-hpux.c to libgcc.
2496
2497 2006-03-21  Steve Ellcey  <sje@cup.hp.com>
2498
2499         PR libgomp/26384
2500         * config/pa/pa64-hpux.h (LIB_SPEC): Fix for -mt and -pthread options.
2501
2502 2006-03-21  Jeff Law  <law@redhat.com>
2503
2504         * tree-vrp.c (extract_range_from_unary_expr): Derive ranges for
2505         type conversions of a VR_VARYING source to a wider type.
2506
2507 2006-03-21  Eric Botcazou  <ebotcazou@libertysurf.fr>
2508
2509         * config.gcc (i[34567]86-*-solaris2*): Add config/sol2-10.h to
2510         tm_file on Solaris 10 and later.
2511         (sparc64-*-solaris2*): Likewise.
2512         (sparc-*-solaris2*): Likewise.
2513         * config/sol26.h: Rename to config/sol2-6.h.
2514         * config/sol2-10.h: New file.
2515
2516 2006-03-21  Andrew Pinski  <pinskia@physics.uc.edu>
2517
2518         PR tree-opt/26781
2519         * tree-ssa-pre.c (create_component_ref_by_pieces):
2520         Handle STRING_CST.
2521
2522 2006-03-21  Jakub Jelinek  <jakub@redhat.com>
2523
2524         PR c++/26690
2525         * tree.c (get_callee_fndecl): If CALL is error_mark_node,
2526         return it immediately.
2527
2528 2006-03-21  Michael Matz  <matz@suse.de>
2529
2530         * genautomata.c (<struct state>, num_out_arcs, presence_signature):
2531         New members.
2532         (remove_arc, add_arc): Update num_out_arcs member.
2533         (set_out_arc_insns_equiv_num): Returns nothing instead of number
2534         of out arcs.
2535         (cache_presence): New function.
2536         (compare_states_for_equiv): New function.
2537         (state_is_differed): Don't take number of outargs, adjust callers.
2538         Use new invariant for speeding up.
2539         (init_equiv_class): Create initial classes based on sorted
2540         input.
2541         (partition_equiv_class): Don't track out_arcs_num.
2542         (evaluate_equiv_classes): Call cache_presence on all states and
2543         sort them.
2544
2545 2006-03-21  Bernd Schmidt  <bernd.schmidt@analog.com>
2546
2547         * config/bfin/bfin-protos.h (bfin_dsp_memref_p): Declare.
2548         * config/bfin/bfin.c (bfin_dsp_memref_p): New function.
2549         (bfin_valid_reg_p): Test for pseudos explicitly and use only
2550         REGNO_MODE_CODE_OK_FOR_BASE_P.  New args MODE and OUTER_CODE; all
2551         callers changed.
2552         * config/bfin/bfin.h (PREG_P): Use P_REGNO_P.
2553         (IREG_P, P_REGNO_P, I_REGNO_P): New macros.
2554         (enum reg_class, REG_CLASS_CONTENTS): Add IPREGS.
2555         (BASE_REG_CLASS, REG_OK_FOR_BASE_P, REG_OK_FOR_INDEX_P,
2556         REGNO_OK_FOR_BASE_STRICT_P, REGNO_OK_FOR_BASE_NONSTRICT_P): Delete
2557         macros.
2558         (IREG_POSSIBLE_P, MODE_CODE_BASE_REG_CLASS,
2559         REGNO_MODE_CODE_OK_FOR_BASE_P): New macros.
2560         (REGNO_REG_CLASS): ARGP is in PREGS.
2561         * config/bfin/bfin.md (movhi_insn): Allow for addresses containing
2562         IREGS.
2563         (zero_extendhisi2, extendhisi2): Likewise; changed to define_and_split
2564         to deal with those addresses.
2565         * addresses.h: New file.
2566         * caller-save.c: Include "addresses.h".
2567         (init_caller_save): Use new base_reg_class function.
2568         * rtl-factoring.c: Include "addresses.h".
2569         (recompute_gain_for_pattern_seq): Use new function ok_for_base_p_1.
2570         * recog.c: Include "addresses.h".
2571         (preprocess_constraints): Use new base_reg_class function.
2572         * regrename.c: Include "addresses.h".
2573         (scan_rtx_address): Use new regno_ok_for_base_p and base_reg_class
2574         functions.  Keep track of a new var INDEX_CODE to compute valid
2575         classes.
2576         (replace_oldest_value_addr): Likewise.
2577         (replace_oldest_value_mem): Use base_reg_class.
2578         * reload.c: Include "addresses.h".
2579         (REGNO_MODE_OK_FOR_BASE_P, REG_MODE_OK_FOR_BASE_P): Delete macros.
2580         (find_reloads): Use new base_reg_class function.
2581         (find_reloads_address): Likewise; also use regno_ok_for_base_p.
2582         (find_reloads_address_1): Likewise. New args OUTER_CODE and INDEX_CODE;
2583         all callers and prototype changed.
2584         * reload1.c: Include "addresses.h".
2585         (maybe_fix_stack_asms): Use base_reg_class.
2586         * regclass.c: Include "addresses.h".
2587         (ok_for_index_p_nonstrict, ok_for_base_p_nonstrict): New functions.
2588         (init_reg_autoinc): Use new base_reg_class function.
2589         (record_reg_classes): Likewise.
2590         (record_address_regs): Delete arg CLASS; add args CONTEXT, MODE,
2591         OUTER_CODE and INDEX_CODE.  All callers and prototype changed.
2592         Use new args to compute necessary class.
2593
2594         * Makefile.in (regclass.o, reload.o, reload1.o, caller-save.o, recog.o,
2595         regrename.o, rtl-factoring.o): Update dependencies.
2596         * doc/tm.texi (MODE_CODE_BASE_REG_CLASS): Document.
2597         (REGNO_MODE_CODE_OK_FOR_BASE_P): Likewise.
2598         (REG_OK_FOR_BASE_P, REG_MODE_OK_FOR_BASE_P, REG_MODE_OK_FOR_REG_BASE_P,
2599         REG_OK_FOR_INDEX_P): Delete documentation.
2600
2601 2006-03-21  Alexey Starovoytov  <alexey.starovoytov@sun.com>
2602
2603         * config.gcc (sparc-*-solaris2*): Change the default CPU setting
2604         from V7 to V9 for Solaris 7 and above.
2605
2606 2006-03-21  Toon Moene  <toon@moene.indiv.nluug.nl>
2607
2608         * doc/invoke.texi: Document new flag -fargument-noalias-anything.
2609         * tree-ssa-alias.c (may_alias_p): If flag_argument_noalias > 2,
2610         argument pointers may not alias any other storage.
2611         * common.opt: Define option -fargument-noalias-anything.
2612         * tree-ssa-structalias.c (intra_create_variable_infos): Fortran
2613         alias semantics is specified by flag_argument_noalias > 2.
2614
2615 2006-03-20  Jeff Law  <law@redhat.com>
2616
2617         * tree-pass.h (pass_phi_only_copy_prop): Delete.
2618         (pass_phi_only_cprop): Declare.
2619         * passes.c (init_optimization_passes): Replace pass_phi_only_copy_prop
2620         with phi_only_cprop
2621         * tree-ssa-dom.c (degenerate_phi_result): New function.
2622         (remove_stmt_or_phi, get_lhs_or_phi_result): Likewise.
2623         (get_rhs_or_phi_arg, propagate_rhs_into_lhs): Likewise.
2624         (eliminate_const_or_copy, eliminate_degenerate_phis_1): Likewise.
2625         (eliminate_degenerate_phis): Likewise.
2626         (pass_phi_only_cprop): New pass descriptor.
2627         * tree-ssa-copy.c (init_copy_prop): Lose PHIS_ONLY argument and
2628         support code.  Callers updated.
2629         (execute_copy_prop, do_copy_prop): Likewise and corresponding changes.
2630         (store_copy_prop): Likewise.
2631         (do_phi_only_copy_prop, pass_phi_only_copy_prop): Remove.
2632
2633 2006-03-20  Jason Merrill  <jason@redhat.com>
2634
2635         PR c++/21764
2636         * c-pragma.c (visstack): Move out of handle_pragma_visibility.
2637         (push_visibility, pop_visibility): Likewise.
2638         * c-pragma.h: Declare them.
2639
2640 2006-03-20  Kaz Kojima  <kkojima@gcc.gnu.org>
2641
2642         * config/sh/sh.c (untangle_mova): Initialize n_addr and n_target.
2643
2644         * config/sh/sh.c (find_regmode_weight): Change the type of the first
2645         parameter and use get_ebb_head_tail.
2646         (sh_md_init_global): Adjust uses of find_regmode_weight.
2647
2648 2006-03-20  Steven Bosscher  <stevenb.gcc@gmail.com>
2649
2650         * function.h (struct function) <x_tail_recursion_reentry>:
2651         Rename to x_stack_check_probe_note.
2652         (tail_recursion_reentry): Rename to stack_check_probe_note.
2653         * function.c: Replace tail_recursion_reentry with
2654         stack_check_probe_note everywhere.
2655         (expand_function_start): Only emit a note for
2656         stack_check_probe_note with -fstack-protect.
2657         * stmt.c (expand_case): Don't emit NOTE_INSN_DELETED notes.
2658
2659         * emit-rtl.c (remove_unnecessary_notes): Remove.
2660         (pass_remove_unnecessary_notes): Remove.
2661         * rtl.h (remove_unnecessary_notes): Remove prototype.
2662         * final.c (final_start_function): Don't call remove_unnecessary_notes.
2663         * tree-pass.h (pass_remove_unnecessary_notes): Remove.
2664         * passes.c (pass_remove_unnecessary_notes): Don't run it.
2665
2666 2006-03-20  Andrew Pinski  <pinskia@physics.uc.edu>
2667
2668         PR tree-opt/26629
2669         * tree-ssa-pre (phi_translate): Handle ARRAY_REF's operands.
2670         (valid_in_set): Handle ARRAY_REF.
2671         Change "if min_variant or VH" to asserts.
2672         (create_component_ref_by_pieces): Handle ARRAY_REF.
2673         (create_expression_by_pieces): Likewise.
2674         (can_PRE_operation): ARRAY_REFs can now be PRE'd.
2675
2676 2006-03-20  David Edelsohn  <edelsohn@gnu.org>
2677
2678         * genpreds.c (write_insn_extra_address_constraint): Argument `c'
2679         is operand of switch, not str[0].
2680
2681 2006-03-20  Alan Modra  <amodra@bigpond.net.au>
2682
2683         * config/rs6000/rs6000.c (rs6000_handle_option): Use
2684         TARGET_NO_FP_IN_TOC inside #ifdef TARGET_USES_SYSV4_OPT too.
2685
2686 2006-03-19  David Edelsohn  <edelsohn@gnu.org>
2687
2688         * genpreds.c (write_tm_preds_h): Add semicolon and newline at
2689         end of insn_extra_address_constraint declaration.
2690
2691 2006-03-19  David Edelsohn  <edelsohn@gnu.org>
2692
2693         * config/rs6000/rs6000.opt (no-fp-in-toc): Use Var not Mask.
2694         (no-sum-in-toc): Same.
2695         * config/rs6000/rs6000.c (rs6000_handle_option): Use new
2696         variables.
2697         * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): Set
2698         NO_FP_IN_TOC for -fPIC instead of mask.
2699
2700         * config/rs6000/t-aix43 (T_ADAFLAGS): Delete.
2701         (BOOT_LDFLAGS): Delete.
2702         (LDFLAGS): Delete.
2703         * config/rs6000/t-aix52: Same.
2704
2705         * config/rs6000/rs6000.md (store_multiple_power): Delete.
2706         (stmsi[345678]_power): New.
2707
2708 2006-03-17  Steve Ellcey  <sje@cup.hp.com>
2709
2710         * config/ia64/ia64.opt: Add empty line to end of file.
2711
2712 2006-03-17  Richard Guenther  <rguenther@suse.de>
2713
2714         PR middle-end/26721
2715         * builtins.c (get_pointer_alignment): For component style references
2716         adjust alignment to the component type alignment.  Make sure
2717         to adjust alignment for component access of constants.
2718
2719 2006-03-17  David Edelsohn  <edelsohn@gnu.org>
2720
2721         * config/rs6000/rs6000.md (strlensi): Emit barrier after
2722         unconditional jump.
2723
2724 2006-03-17  Paul Brook  <paul@codesourcery.com>
2725
2726         * doc/install.texi: Docuemnt --with-mode.
2727         * config.gcc: Add --with-mode for arm*-*-*.
2728         * config/arm/arm.h (OPTION_DEFAULT_SPECS): Add "mode".
2729
2730 2006-03-17  J"orn Rennecke <joern.rennecke@st.com>
2731
2732         * sh.c (max_labelno_before_reorg): New variable.
2733         (sh_reorg): Initialize it.
2734         (find_barrier): Check max_labelno_before_reorg before using
2735         label_to_alignment.  Take length of explicit alignment insns
2736         into account.  When seeing a UNSPECV_CONST_END, return it.
2737
2738         * sh.c (fixup_mova): Set mode of affected label to QImode.
2739         (untangle_mova): New function.
2740         (find_barrier): Use it.  Check mode of label before decrementing
2741         num_mova.
2742         (sh_reorg): Likewise.
2743         Set mode of all insns back to VOIDmode.
2744
2745         * sh.c (MOVA_LABELREF): New macro.
2746         (mova_p, fixup_mova, sh_reorg): Use it.
2747         (find_barrier, sh_reorg): Don't count num_mova back to 0 unless
2748         ADDR_DIFF_VEC matches mova.
2749
2750 2006-03-17  Steven Bosscher  <stevenb.gcc@gmail.com>
2751
2752         * dwarf2asm.c (dw2_asm_output_offset): Mark 'base' argument
2753         with ATTRIBUTE_UNUSED.
2754
2755 2006-03-17  Alexandre Oliva  <aoliva@redhat.com>
2756
2757         * dwarf2out.c (dwarf2out_stack_adjust): Always track the stack
2758         pointer, instead of assuming it is possible to derive the
2759         correct args size from a call insn.
2760
2761 2006-03-16  Jan-Benedict Glaw  <jbglaw@lug-owl.de>
2762
2763         * rtl.h (CONST_INT_P): Define.
2764         * config/vax/vax.c (print_operand_address): Use CONST_INT_P()
2765         instead of GET_CODE(x) == CONST_INT.
2766         (vax_rtx_costs): Likewise.
2767         (vax_output_int_move): Likewise.
2768         (vax_output_int_add): Likewise.
2769         (legitimate_constant_address_p): Likewise.
2770         (index_term_p): Likewise.
2771         * config/vax/vax.h (PRINT_OPERAND): Likewise.
2772         * config/vax/vax.md (and<mode>3): Likewise.
2773         (ashrsi3): Likewise.
2774         (extv): Likewise.
2775         (movstricthi): Likewise.
2776         (movstrictqi): Likewise.
2777         (rotrsi3): Likewise.
2778         (five unnamed insns): Likewise.
2779
2780 2006-03-16  Geoffrey Keating  <geoffk@apple.com>
2781
2782         * doc/tm.texi (SDB and DWARF): Add extra parameter to
2783         ASM_OUTPUT_DWARF_OFFSET.  Use @var to indicate metavariables.
2784         * dwarf2asm.h (dw2_asm_output_offset): Add section parameter.
2785         * dwarf2asm.c (dw2_asm_output_offset): Add base section parameter.
2786         Pass to ASM_OUTPUT_DWARF_OFFSET.
2787         * dwarf2out.c (debug_frame_section): New.
2788         (output_call_frame_info): Use debug_frame_section.  Pass it to
2789         dw2_asm_output_offset.
2790         (output_die): Pass appropriate section to dw2_asm_output_offset.
2791         (output_compilation_unit_header): Likewise.
2792         (output_pubnames): Likewise.
2793         (output_aranges): Likewise.
2794         (enum dw_val_class): Break dw_val_class_lbl_offset into
2795         dw_val_class_lineptr and dw_val_class_macptr.
2796         (add_AT_lbl_offset): Delete.
2797         (add_AT_lineptr): New.
2798         (add_AT_macptr): New.
2799         (AT_lbl): Expect a lineptr or macptr.
2800         (print_die): Handle dw_val_class_lineptr and dw_val_class_macptr.
2801         (attr_checksum): Likewise.
2802         (same_dw_val_p): Likewise.
2803         (size_of_die): Likewise.
2804         (value_format): Likewise.
2805         (output_die): Likewise.
2806         (dwarf2out_finish): Call add_AT_lineptr and add_AT_macptr instead of
2807         add_AT_lbl_offset.
2808         * config/i386/cygming.h (ASM_OUTPUT_DWARF_OFFSET): Add extra parameter.
2809         * config/i386/i386.c (x86_file_start): Call darwin_file_start.
2810         * config/darwin-protos.h (darwin_file_start): New.
2811         (darwin_asm_output_dwarf_offset): New.
2812         * config/ia64/ia64.h (ASM_OUTPUT_DWARF_OFFSET): Add extra parameter.
2813         * config/rs6000/rs6000.c (rs6000_darwin_file_start): Call
2814         darwin_file_start.
2815         * config/darwin.c (darwin_emit_unwind_label): Don't output label
2816         if not EH section; simplify.
2817         (darwin_file_start): New.
2818         (darwin_asm_output_dwarf_offset): New.
2819         * config/darwin.h (DEBUG_FRAME_SECTION): In __DWARF segment,
2820         mark as 'debug'.
2821         (DEBUG_INFO_SECTION): Likewise.
2822         (DEBUG_ABBREV_SECTION): Likewise.
2823         (DEBUG_ARANGES_SECTION): Likewise.
2824         (DEBUG_MACINFO_SECTION): Likewise.
2825         (DEBUG_LINE_SECTION): Likewise.
2826         (DEBUG_LOC_SECTION): Likewise.
2827         (DEBUG_PUBNAMES_SECTION): Likewise.
2828         (DEBUG_STR_SECTION): Likewise.
2829         (DEBUG_RANGES_SECTION): Likewise.
2830         (FRAME_BEGIN_LABEL): Must start with 'L' in debug section.
2831         (ASM_OUTPUT_DWARF_OFFSET): New.
2832
2833 2006-03-16  Joseph S. Myers  <joseph@codesourcery.com>
2834
2835         * config.gcc (tm_defines): Always add to previous value rather
2836         than replacing it.
2837
2838 2006-03-16  Richard Sandiford  <richard@codesourcery.com>
2839
2840         * config/mips/predicates.md (splittable_const_int_operand): New,
2841         split from move_operand.
2842         (splittable_symbolic_operand): New.
2843         (move_operand): Add commentary.  Use splittable_const_int_operand.
2844         Inline mips_atomic_symbolic_constant_p.
2845         * config/mips/mips.md: Add combine splitters for handling moves
2846         of splittable_const_int_operands and splittable_symbolic_operands.
2847         * config/mips/mips-protos.h (mips_atomic_symbolic_constant_p): Delete.
2848         (mips_split_symbol): Declare.
2849         (mips_move_integer): Declare.
2850         * config/mips/mips.c (mips_split_p): Make global.
2851         (TARGET_MIN_ANCHOR_OFFSET): Override default.
2852         (TARGET_MAX_ANCHOR_OFFSET): Likewise.
2853         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Likewise.
2854         (TARGET_USE_ANCHORS_FOR_SYMBOL_P): Likewise.
2855         (mips_offset_within_object_p): Handle block symbols.
2856         (mips_atomic_symbolic_constant_p): Delete.
2857         (mips_cannot_force_const_mem): Return false for constants that
2858         mips_legitimize_move can handle.
2859         (mips_use_blocks_for_constant_p): New function.
2860         (mips_split_symbol): Make global.
2861         (mips_move_integer): Likewise.  Add a temporary register argument.
2862         (mips_legitimize_const_move): Use splittable_const_int_operand and
2863         splittable_symbolic_operand.
2864         (mips_use_anchors_for_symbol_p): New function.
2865         * config/mips/mips.h: Protect externs with !USED_FOR_TARGET.
2866         (mips_split_p): Declare.
2867
2868 2006-03-16  Richard Sandiford  <richard@codesourcery.com>
2869
2870         * config.gcc (mips64*-*-linux*): Keep existing tm_defines.
2871         (mips*-*-linux*): Likewise.
2872
2873 2006-03-16  Roger Sayle  <roger@eyesopen.com>
2874             Daniel Speyer  <dspeyer@wam.umd.edu>
2875
2876         PR middle-end/18259
2877         * tree-dump.c (dump_real): New function.
2878         (dequeue_and_dump) <REAL_CST>: Use it to dump FP constants.
2879         * Makefile.in (REAL_H): New macro for dependencies on real.h.
2880         (tree-dump.o): Add $(REAL_H) to the dependencies.
2881
2882 2006-03-16  Roger Sayle  <roger@eyesopen.com>
2883
2884         PR middle-end/21781
2885         * real.c (real_from_string): If the mantissa is zero, don't bother
2886         parsing the exponent as the result should always be zero.
2887
2888 2006-03-16  Andreas Krebbel  <krebbel1@de.ibm.com>
2889
2890         * simplify-rtx.c (simplify_plus_minus): Simplify within CONST terms.
2891
2892 2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>
2893
2894         * config/ia64/ia64.c (stops_p): Added explicit initialization.
2895         (ia64_first_cycle_multipass_dfa_lookahead_guard_spec,
2896         ia64_h_i_d_extended, ia64_set_sched_flags, ia64_speculate_insn,
2897         ia64_needs_block_p, ia64_gen_check, ia64_sched_init_global,
2898         ia64_sched_finish_global): New static functions to implement
2899         hooks from gcc_target.sched.
2900         (spec_check_no, max_uid, pending_data_specs): New static variables.
2901         (ia64_mode_to_int, ia64_gen_spec_insn, ia64_spec_check_p,
2902         ia64_spec_check_src_p): New static functions.
2903         (ia64_adjust_cost): Renamed to ia64_adjust_cost_2.
2904         (TARGET_SCHED_ADJUST_COST): Removed.
2905         (TARGET_SCHED_ADJUST_COST_2, TARGET_SCHED_INIT_GLOBAL,
2906         TARGET_SCHED_FINISH_GLOBAL, TARGET_SCHED_H_I_D_EXTENDED,
2907         TARGET_SCHED_SPECULATE_INSN, TARGET_SCHED_NEEDS_BLOCK_P,
2908         TARGET_SCHED_GEN_CHECK,
2909         TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD_SPEC,
2910         TARGET_SCHED_SET_SCHED_FLAGS): New macros.
2911         (update_set_flags, group_barrier_needed, set_src_needs_barrier):
2912         Fixed to handle speculation checks.
2913         (rtx_needs_barrier): Fixed to handle speculative loads and
2914         their checks.
2915         (ia64_variable_issue): Added code to count speculative loads and their
2916         checks.
2917         (ia64_first_cycle_multipass_dfa_lookahead_guard): Fixed to handle
2918         speculative loads.
2919         (enum SPEC_MODES, enum SPEC_GEN_LD_MAP, SPEC_GEN_CHECK_OFFSET):
2920         New enumerations.
2921         (SPEC_GEN_EXTEND_OFFSET, SPEC_N, SPEC_GEN_CHECK_MUTATION_OFFSET):
2922         New constants.
2923         (ia64_ld_address_bypass_p): Fixed to handle speculative loads.
2924         (ia64_reorg): Reset stops_p to NULL after it is freed.
2925         * config/ia64/ia64.md (UNSPEC_LDA, UNSPEC_LDS, UNSPEC_LDSA,
2926         UNSPEC_LDCCLR, UNSPEC_CHKACLR, UNSPEC_CHKS): New constants.
2927         (itanium_class): chk_s renamed to chk_s_i.  New constants: chk_s_f,
2928         chk_a.
2929         (data_speculative, control_speculative, check_load): New attributes.
2930         (mov<mode>_advanced, mov<mode>_speculative,
2931         mov<mode>_speculative_advanced, zero_extend<mode>di2_advanced,
2932         zero_extend<mode>di2_speculative,
2933         zero_extend<mode>di2_speculative_advanced): New patterns for
2934         data and control speculative loads.
2935         (mov<mode>_clr, zero_extend<mode>di2_clr): New patterns for
2936         check loads.
2937         (advanced_load_check_clr_<mode>, speculation_check_<mode>):
2938         New pattern for data and control speculation checks.
2939         (MODE, MODE_FOR_EXTEND, output_a, output_s, output_sa, output_c_clr,
2940         ld_reg_constr, ldc_reg_constr, chk_reg_constr, mem_constr,
2941         reg_pred_prefix, ld_class, chka_class, chks_class, attr_yes):
2942         Auxiliary definitions for the patterns.
2943         * config/ia64/itanium1.md (1_fldc, 1_fldpc, 1_ldc, 1_chk_s_f, 1_chk_a,
2944         1b_fldc, 1b_fldpc, 1b_ldc, 1b_chk_s_f, 1b_chk_a): New resource
2945         constraints.
2946         (1_fld, 1_fldp, 1_ld, 1b_fld, 1b_fldp, 1b_ld): Add a condition
2947         for speculation.
2948         (1_chk_s, 1b_chk_s): Renamed to 1_chk_s_i, 1b_chk_s_i.
2949         * config/ia64/itanium2.md (2_flda, 2_fldc, 2_fldpc, 2_ldc, 2_chk_s_f,
2950         2_chk_a, 2b_flda, 2b_fldc, 2b_fldpc, 2b_ldc, 2b_chk_s_f, 2b_chk_a):
2951         New resource constraints.
2952         (2_fld, 2_fldp, 2_ld, 2b_fld, 2b_fldp, 2b_ld): Add a condition
2953         for speculation.
2954         (2_chk_s, 2b_chk_s): Renamed to 2_chk_s_i, 2b_chk_s_i.
2955         * config/ia64/ia64.opt (msched-br-data-spec, msched-ar-data-spec,
2956         msched-control-spec, msched-br-in-data-spec, msched-ar-in-data-spec,
2957         msched-in-control-spec, msched-ldc, msched-control-ldc,
2958         msched-spec-verbose, msched-prefer-non-data-spec-insns,
2959         msched-prefer-non-control-spec-insns,
2960         msched-count-spec-in-critical-path): New flags to tune speculative
2961         scheduling.
2962         * doc/invoke.texi (msched-br-data-spec, msched-ar-data-spec,
2963         msched-control-spec, msched-br-in-data-spec, msched-ar-in-data-spec,
2964         msched-in-control-spec, msched-ldc, msched-control-ldc,
2965         msched-spec-verbose, msched-prefer-non-data-spec-insns,
2966         msched-prefer-non-control-spec-insns,
2967         msched-count-spec-in-critical-path): Document new flags.
2968
2969 2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>
2970
2971         * target.h (struct spec_info_def): New opaque declaration.
2972         (struct gcc_target.sched): New fields: adjust_cost_2, h_i_d_extended,
2973         speculate_insn, needs_block_p, gen_check,
2974         first_cycle_multipass_dfa_lookahead_guard_spec, set_sched_flags.
2975         * target-def.h (TARGET_SCHED_ADJUST_COST_2,
2976         TARGET_SCHED_H_I_D_EXTENDED, TARGET_SCHED_SPECULATE_INSN,
2977         TARGET_SCHED_NEEDS_BLOCK_P, TARGET_SCHED_GEN_CHECK,
2978         TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD_SPEC,
2979         TARGET_SCHED_SET_SCHED_FLAGS): New macros to initialize fields in
2980         gcc_target.sched.
2981         (TARGET_SCHED): Use new macros.
2982         * rtl.h (copy_DEPS_LIST_list): New prototype.
2983         * sched-int.h (struct sched_info): Change signature of new_ready field,
2984         adjust all initializations. New fields: add_remove_insn,
2985         begin_schedule_ready, add_block, advance_target_bb, fix_recovery_cfg,
2986         region_head_or_leaf_p.
2987         (struct spec_info_def): New structure declaration.
2988         (spec_info_t): New typedef.
2989         (struct haifa_insn_data): New fields: todo_spec, done_spec, check_spec,
2990         recovery_block, orig_pat.
2991         (glat_start, glat_end): New variables declaraions.
2992         (TODO_SPEC, DONE_SPEC, CHECK_SPEC, RECOVERY_BLOCK, ORIG_PAT):
2993         New access macros.
2994         (enum SCHED_FLAGS): New constants: SCHED_RGN, SCHED_EBB,
2995         DETACH_LIFE_INFO, USE_GLAT.
2996         (enum SPEC_SCHED_FLAGS): New enumeration.
2997         (NOTE_NOTE_BB_P): New macro.
2998         (extend_dependency_caches, xrecalloc, unlink_bb_notes, add_block,
2999         attach_life_info, debug_spec_status, check_reg_live): New functions.
3000         (get_block_head_tail): Change signature to get_ebb_head_tail, adjust
3001         all uses in ddg.c, modulo-sched.c, haifa-sched.c, sched-rgn.c,
3002         sched-ebb.c
3003         (get_dep_weak, ds_merge): Prototype functions from sched-deps.c .
3004         * ddg.c (get_block_head_tail): Adjust all uses.
3005         * modulo-sched.c (get_block_head_tail): Adjust all uses.
3006         (sms_sched_info): Initialize new fields.
3007         (contributes_to_priority): Removed.
3008         * haifa-sched.c (params.h): New include.
3009         (get_block_head_tail): Adjust all uses.
3010         (ISSUE_POINTS): New macro.
3011         (glat_start, glat_end): New global variables.
3012         (spec_info_var, spec_info, added_recovery_block_p, nr_begin_data,
3013         nr_be_in_data, nr_begin_control, nr_be_in_control, bb_header,
3014         old_last_basic_block, before_recovery, current_sched_info_var,
3015         rgn_n_insns, luid): New static variables.
3016         (insn_cost1): New function.  Move logic from insn_cost to here.
3017         (find_insn_reg_weight1): New function.  Move logic from
3018         find_insn_reg_weight to here.
3019         (reemit_notes, move_insn, max_issue): Change signature.
3020         (move_insn1): Removed.
3021         (extend_h_i_d, extend_ready, extend_global, extend_all, init_h_i_d,
3022         extend_bb): New static functions to support extension of scheduler's
3023         data structures.
3024         (generate_recovery_code, process_insn_depend_be_in_spec,
3025         begin_speculative_block, add_to_speculative_block,
3026         init_before_recovery, create_recovery_block, create_check_block_twin,
3027         fix_recovery_deps): New static functions to support
3028         generation of recovery code.
3029         (fix_jump_move, find_fallthru_edge, dump_new_block_header,
3030         restore_bb_notes, move_block_after_check, move_succs): New static
3031         functions to support ebb scheduling.
3032         (init_glat, init_glat1, attach_life_info1, free_glat): New static
3033         functions to support handling of register live information.
3034         (associate_line_notes_with_blocks, change_pattern, speculate_insn,
3035         sched_remove_insn, clear_priorities, calc_priorities, bb_note,
3036         add_jump_dependencies): New static functions.
3037         (check_cfg, has_edge_p, check_sched_flags): New static functions for
3038         consistancy checking.
3039         (debug_spec_status): New function to call from debugger.
3040         (priority): Added code to handle speculation checks.
3041         (rank_for_schedule): Added code to distinguish speculative instructions.
3042         (schedule_insn): Added code to handle speculation checks.
3043         (unlink_other_notes, rm_line_notes, restore_line_notes, rm_other_notes):
3044         Fixed to handle ebbs.
3045         (move_insn): Added code to handle ebb scheduling.
3046         (max_issue): Added code to use ISSUE_POINTS of instructions.
3047         (choose_ready): Added code to choose between speculative and
3048         non-speculative instructions.
3049         (schedule_block): Added code to handle ebb scheduling and scheduling of
3050         speculative instructions.
3051         (sched_init): Initialize new variables.
3052         (sched_finish): Free new variables.  Print statistics.
3053         (try_ready): Added code to handle speculative instructions.
3054         * lists.c (copy_DEPS_LIST_list): New function.
3055         * sched-deps.c (extend_dependency_caches): New function.  Move logic
3056         from create_dependency_caches to here.
3057         (get_dep_weak, ds_merge): Make global.
3058         * genattr.c (main): Code to output prototype for
3059         dfa_clear_single_insn_cache.
3060         * genautomata.c (DFA_CLEAR_SINGLE_INSN_CACHE_FUNC_NAME): New macros.
3061         (output_dfa_clean_insn_cache_func): Code to output
3062         dfa_clear_single_insn_cache function.
3063         * sched-ebb.c (target_n_insns): Remove.  Adjust all users to use
3064         n_insns.
3065         (can_schedule_ready_p, fix_basic_block_boundaries, add_missing_bbs):
3066         Removed.
3067         (n_insns, dont_calc_deps, ebb_head, ebb_tail, last_bb):
3068         New static variables.
3069         (begin_schedule_ready, add_remove_insn, add_block1, advance_target_bb,
3070         fix_recovery_cfg, ebb_head_or_leaf_p): Implement hooks from
3071         struct sched_info.
3072         (ebb_sched_info): Initialize new fields.
3073         (get_block_head_tail): Adjust all uses.
3074         (compute_jump_reg_dependencies): Fixed to use glat_start.
3075         (schedule_ebb): Code to remove unreachable last block.
3076         (schedule_ebbs): Added code to update register live information.
3077         * sched-rgn.c (region_sched_info): Initialize new fields.
3078         (get_block_head_tail): Adjust all uses.
3079         (last_was_jump): Removed.  Adjust users.
3080         (begin_schedule_ready, add_remove_insn, insn_points, extend_regions,
3081         add_block1, fix_recovery_cfg, advance_target_bb, region_head_or_leaf_p):
3082         Implement new hooks.
3083         (check_dead_notes1): New static function.
3084         (struct region): New fields: dont_calc_deps, has_real_ebb.
3085         (RGN_DONT_CALC_DEPS, RGN_HAS_REAL_EBB): New access macros.
3086         (BB_TO_BLOCK): Fixed to handle EBBs.
3087         (EBB_FIRST_BB, EBB_LAST_BB): New macros.
3088         (ebb_head): New static variable.
3089         (debug_regions, contributes_to_priority): Fixed to handle EBBs.
3090         (find_single_block_regions, find_rgns, find_more_rgns): Initialize
3091         new fields.
3092         (compute_dom_prob_ps): New assertion.
3093         (check_live_1, update_live_1): Fixed to work with glat_start instead of
3094         global_live_at_start.
3095         (init_ready_list): New assertions.
3096         (can_schedule_ready_p): Split update code to begin_schedule_ready.
3097         (new_ready): Add support for BEGIN_CONTROL speculation.
3098         (schedule_insns): Fixed code that updates register live information
3099         to handle EBBs.
3100         (schedule_region): Fixed to handle EBBs.
3101         (init_regions): Use extend_regions and check_dead_notes1.
3102         * params.def (PARAM_MAX_SCHED_INSN_CONFLICT_DELAY,
3103         PARAM_SCHED_SPEC_PROB_CUTOFF): New parameters.
3104         * doc/tm.texi (TARGET_SCHED_ADJUST_COST_2, TARGET_SCHED_H_I_D_EXTENDED,
3105         TARGET_SCHED_SPECULATE_INSN, TARGET_SCHED_NEEDS_BLOCK_P,
3106         TARGET_SCHED_GEN_CHECK,
3107         TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD_SPEC,
3108         TARGET_SCHED_SET_SCHED_FLAGS): Document.
3109         * doc/invoke.texi (max-sched-insn-conflict-delay,
3110         sched-spec-prob-cutoff): Document.
3111
3112 2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>
3113
3114         * sched-int.h (struct haifa_insn_data): New fields: resolved_deps,
3115         inter_tick, queue_index.
3116         (struct sched_info): Change signature of init_ready_list field.
3117         Adjust all initializations.
3118         (RESOLVED_DEPS): New access macro.
3119         (ready_add): Remove prototype.
3120         (try_ready): Add prototype.
3121         * sched-rgn.c (init_ready_list): Use try_ready.
3122         (schedule_region): Initialize
3123         current_sched_info->{sched_max_insns_priority, queue_must_finish_empty}.
3124         * sched-ebb.c (new_ready): Remove.  Adjust ebb_sched_info.
3125         (init_ready_list): Use try_ready.
3126         (schedule_ebb): Initialize current_sched_info->sched_max_insns_priority.
3127         * lists.c (remove_list_elem): Remove `static'.
3128         (remove_free_INSN_LIST_elem): New function.
3129         * rtl.h (remove_list_elem, remove_free_INSN_LIST_elem): Add prototypes.
3130         * haifa-sched.c (INTER_TICK, QUEUE_INDEX): New macros.
3131         (INVALID_TICK, MIN_TICK, QUEUE_SCHEDULED, QUEUE_NOWHERE, QUEUE_READY):
3132         New constants.
3133         (readyp): New variable.
3134         (queue_remove, ready_remove_insn, fix_inter_tick, fix_tick_ready,
3135         change_queue_index, resolve_dep): New static functions.
3136         (try_ready): New function.  Adjust callers in sched-rgn.c and
3137         sched-ebb.c to use it instead of ready_add.
3138         (clock_var): Move at the begining of file.
3139         (rank_for_schedule): Fix typo.
3140         (queue_insn): Add assertion.  Handle QUEUE_INDEX.
3141         (ready_lastpos): Enforce assertion.
3142         (ready_add): Make it static.  Handle QUEUE_INDEX.  Add new argument,
3143         update all callers.
3144         (ready_remove_first, ready_remove): Handle QUEUE_INDEX.
3145         (schedule_insn): Rewrite to use try_ready and resolve_dep.
3146         (queue_to_ready): Use free_INSN_LIST_list.
3147         (early_queue_to_ready): Fix typo.
3148         (schedule_block): Init readyp.  Move init_ready_list call after the
3149         initialization of clock_var.  Fix error in rejecting insn by
3150         targetm.sched.dfa_new_cycle.  Add call to fix_inter_tick.  Remove code
3151         that previously corrected INSN_TICKs.  Add code for handling
3152         QUEUE_INDEX.
3153         (set_priorities): Fix typo.
3154         (sched_init): Initialize INSN_TICK, INTER_TICK and QUEUE_INDEX.
3155         Clarify comment and code that keeps current_sched_info->next_tail
3156         non-null.
3157
3158 2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>
3159
3160         * sched-rgn.c (extend_rgns): New static function.
3161         (find_rgns): Use it.
3162         (gather_region_statistics, print_region_statistics): New static
3163         functions.
3164         * params.def (PARAM_MAX_SCHED_EXTEND_REGIONS_ITERS): New parameter.
3165         * doc/invoke.texi (max-sched-extend-regions-iters): Document.
3166
3167 2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>
3168             Andrey Belevantsev <abel@ispras.ru>
3169
3170         * ddg.c (build_intra_loop_deps): Adjust add_forward_dependence call.
3171         * lists.c (unused_deps_list): New variable.
3172         (free_list): Add assertions to verify the proper distinguishing
3173         between INSN_LISTs and DEPS_LISTs.
3174         (find_list_elem, remove_list_elem, remove_list_node): New static
3175         functions.
3176         (alloc_DEPS_LIST, free_DEPS_LIST, free_DEPS_LIST_node,
3177         remove_free_INSN_LIST_elem, remove_free_DEPS_LIST_elem,
3178         remove_free_INSN_LIST_node, remove_free_DEPS_LIST_node): New functions.
3179         (alloc_INSN_LIST): Assert that the list we're working on is indeed
3180         an INSN_LIST.
3181         (free_INSN_LIST_node): Likewise.
3182         * modulo-sched.c (current_sched_info): Initialize flags field.
3183         * reg-notes.def: Exchange DEP_ANTI and DEP_OUTPUT.
3184         * rtl.def (DEPS_LIST): Define.
3185         * rtl.h: Declare new functions from lists.c.
3186         * sched-deps.c (spec_dependency_cache): New static variable.
3187         (maybe_add_or_update_back_dep_1, add_back_dep): New static functions.
3188         (add_dependence): Change return type to void.  Move the logic to ...
3189         (add_or_update_back_dep_1): ... here.  Handle speculative dependencies.
3190         (delete_all_dependences): Add comment about forward_dependency_cache.
3191         Handle spec_dependency_cache.  Handle DEPS_LISTs.
3192         (fixup_sched_groups): Clarify the change of priority of output
3193         and anti dependencies.
3194         (sched_analyze_2): Adjust add_dependence calls to create data
3195         speculative dependence.
3196         (add_forward_dependence): Renamed to add_forw_dep, change prototype.
3197         Adjust all callers.  Handle DEPS_LISTS.
3198         (compute_forward_dependences): Use add_forw_dep.  Sort LOG_LINKs in
3199         presence of speculation.
3200         (init_dependency_caches, free_dependency_caches):
3201         Handle spec_dependency_cache.
3202         (adjust_add_sorted_back_dep, adjust_back_add_forw_dep, delete_forw_dep,
3203         estimate_dep_weak, get_dep_weak, ds_merge, check_dep_status):
3204         New static functions.
3205         (add_or_update_back_dep, add_or_update_back_forw_dep,
3206         add_back_forw_dep, delete_back_forw_dep): New functions.
3207         * sched-int.h (ds_t, dw_t): New typedefs.
3208         (struct sched_info): Add new field flags.
3209         (struct haifa_insn_data): Add new bitfield has_internal_dep.
3210         Prototype new sched-deps.c functions.
3211         (HAS_INTERNAL_DEP, DEP_STATUS): New access macros.
3212         (BITS_PER_DEP_STATUS, BITS_PER_DEP_WEAK, DEP_WEAK_MASK, MAX_DEP_WEAK,
3213         MIN_DEP_WEAK, NO_DEP_WEAK, UNCERTAIN_DEP_WEAK, BEGIN_DATA, BE_IN_DATA,
3214         BEGIN_CONTROL, BE_IN_CONTROL, BEGIN_SPEC, DATA_SPEC, CONTROL_SPEC,
3215         SPECULATIVE, BE_IN_SPEC, FIRST_SPEC_TYPE, LAST_SPEC_TYPE,
3216         SPEC_TYPE_SHIFT, DEP_TRUE, DEP_OUTPUT, DEP_ANTI, DEP_TYPES, HARD_DEP):
3217         New constants.
3218         (enum SPEC_TYPES_OFFSETS, enum DEPS_ADJUST_RESULT, enum SCHED_FLAGS):
3219         New enums.
3220         * sched-rgn.c (current_sched_info): Initialize flags field.
3221         (schedule_insns): Initialize current_sched_info before the sched_init
3222         call.
3223         * sched-ebb.c (current_sched_info): Initialize flags field.
3224         (add_deps_for_risky_insns): Use control_flow_insn_p instead of JUMP_P.
3225         Call add_or_update_back_dep instead of add_dependence.
3226         Create control speculative dependencies.
3227         (schedule_insns): Initialize current_sched_info before the sched_init
3228         call.
3229
3230 2006-03-16  Kaz Kojima  <kkojima@gcc.gnu.org>
3231
3232         * config/sh/linux-unwind.h (shmedia_fallback_frame_state): Set
3233         fs->signal_frame.
3234         (sh_fallback_frame_state): Likewise.
3235
3236 2006-03-15  Geoffrey Keating  <geoffk@apple.com>
3237
3238         * config.gcc (*-*-darwin*): Don't build crt2.o for all Darwin ports.
3239         Do switch on default_use_cxa_atexit.
3240         (powerpc*-*-darwin*): Build crt2.o on powerpc.
3241         * config/darwin-crt3.o: New.
3242         * config/darwin.h (LINK_SPEC): If -shared-libgcc, make linker default
3243         to 10.3.  Pass '-multiply_defined suppress' if crt3.o is in use.
3244         (STARTFILE_SPEC): Add crt3.o when -shared-libgcc and appropriate
3245         OS version.
3246         * config/rs6000/t-darwin: Move crt2.o building to here.
3247         * config/rs6000/darwin.h (C_COMMON_OVERRIDE_OPTIONS): Update
3248         Mac OS version for using __cxa_get_exception_ptr.  Don't test versions
3249         of __cxa_atexit.
3250
3251 2006-03-15  Jan-Benedict Glaw  <jbglaw@lug-owl.de>
3252
3253         * config/vax/vax.c (nonindexed_address_p): Change logical negation
3254         from '! xxx' to '!xxx' for coding-style conformance.
3255         * config/vax/vax.h (PCC_BITFIELD_TYPE_MATTERS): Likewise.
3256         (EXTRA_CONSTRAINT): Likewise.
3257         * config/vax/vax.md (four unnamed insns): Likewise.
3258
3259 2006-03-15  Paul Brook  <paul@codesourcery.com>
3260
3261         * config/arm/arm.c (minipool_pad): New.
3262         (add_minipool_forward_ref): Include pool alignment padding in address
3263         calculation.
3264         (push_minipool_fix): Set minipool_pad.
3265         (minipool_pad): Ditto.
3266
3267 2006-03-15  Jan-Benedict Glaw  <jbglaw@lug-owl.de>
3268
3269         * config/vax/vax.c (split_quadword_operands): Use MEM_P()
3270         instead of GET_CODE() == MEM and REG_P() instead of
3271         GET_CODE() == REG.
3272         (print_operand_address): Likewise.
3273         (vax_address_cost): Likewise.
3274         (vax_rtx_costs): Likewise.
3275         (vax_notice_update_cc): Likewise.
3276         (vax_output_int_add): Likewise.
3277         (INDEX_REGISTER_P): Likewise.
3278         (BASE_REGISTER_P): Likewise.
3279         (nonindexed_address_p): Likewise.
3280         (vax_mode_dependent_address_p): Likewise.
3281         * config/vax/vax.h (EXTRA_CONSTRAINT): Likewise.
3282         (PRINT_OPERAND): Likewise.
3283         * config/vax/vax.md (ashlsi3): Likewise.
3284         (ashlsi3): Likewise.
3285         (some more unnamed insns): Likewise.
3286
3287 2006-03-15  Kazu Hirata  <kazu@codesourcery.com>
3288
3289         * tree-ssa-dce.c (EXECUTE_IF_CONTROL_DEPENDENT): Make it an
3290         iterator-style macro.
3291         (mark_control_dependent_edges_necessary): Update the use of
3292         EXECUTE_IF_CONTROL_DEPENDENT.
3293
3294 2006-03-15  J"orn Rennecke <joern.rennecke@st.com>
3295
3296         * config/sh/predicates.md (cache_address_operand): Special.
3297         (ua_address_operand): Likewise.
3298
3299 2006-03-15  Zdenek Dvorak <dvorakz@suse.cz>
3300
3301         * haifa-sched.c (unlink_other_notes, reemit_notes): Do not handle
3302         loop notes.
3303         * sched-deps.c (sched_analyze_insn, sched_analyze): Ditto.
3304
3305 2006-03-15  Andreas Schwab  <schwab@suse.de>
3306
3307         * gensupport.c (identify_predicable_attribute): Don't free p_false
3308         when it is still in use.
3309
3310 2006-03-15  Eric Botcazou  <ebotcazou@libertysurf.fr>
3311
3312         * config.gcc (default with_cpu setting) <sparc*-*-*>: Do not modify
3313         the default setting here.
3314
3315 2006-03-14  Steven Bosscher  <stevenb.gcc@gmail.com>
3316
3317         * tree-pass.h (pass_cfg): Remove.
3318         * alias.c (rest_of_handle_cfg, pass_cfg): Remove.
3319         * passes.c (pass_cfg): Don't run it.
3320
3321 2006-03-14  Kazu Hirata  <kazu@codesourcery.com>
3322
3323         * Makefile.in (reg-stack.o): Don't depend on gt-reg-stack.h.
3324         * reg-stack.c (stack_regs_mentioned_data): Change the type to
3325         VEC(char,heap) *.
3326         (stack_regs_mentioned): Update the uses of
3327         stack_regs_mentioned_data.  Don't access the array beyond its
3328         end.
3329         (reg_to_stack): Update the uses of stack_regs_mentioned_data.
3330         Don't include gt-reg-stack.h.
3331
3332         * config/bfin/bfin.h (UNALIGNED_WORD_ASM_OP): Remove.
3333         * system.h (UNALIGNED_WORD_ASM_OP): Poison.
3334
3335         * combine.c (UWIDE_SHIFT_LEFT_BY_BITS_PER_WORD): Remove.
3336
3337         PR middle-end/26684
3338         * reg-stack.c (stack_regs_mentioned_data): Put it undef #ifdef
3339         STACK_REGS.
3340
3341 2006-03-14  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
3342
3343         * pa/pa32-linux.h (CRT_CALL_STATIC_FUNCTION): Fix typo.
3344
3345 2006-03-14  Richard Guenther  <rguenther@suse.de>
3346
3347         PR tree-optimization/26672
3348         * tree-ssa-propagate.c (set_rhs): Don't walk DEFs if not in
3349         SSA form.
3350
3351 2006-03-14  Richard Guenther  <rguenther@suse.de>
3352
3353         PR tree-optimization/26667
3354         * ipa-inline.c (cgraph_check_inline_limits): Walk the correct
3355         node for the callees.  Always allow inlining if it will shrink
3356         the function size.
3357
3358 2006-03-14  Richard Guenther  <rguenther@suse.de>
3359
3360         PR middle-end/26659
3361         * builtins.c (get_pointer_alignment): Prefer alignment
3362         information from decls over that from types.
3363
3364 2006-03-14  Andrew Pinski  <pinskia@physics.uc.edu>
3365
3366         PR target/26657
3367         * config/darwin.h (LINK_COMMAND_SPEC): Handle -fopenmp.
3368
3369 2006-03-14  Joseph S. Myers  <joseph@codesourcery.com>
3370
3371         * config/rs6000/rs6000.opt (mdlmzb): New option.
3372         (msched-prolog, msched-epilog): Use Var not Mask.
3373         * doc/invoke.texi (-mdlmzb): Document.
3374         * config/rs6000/rs6000.c (TARGET_DEFAULT_TARGET_FLAGS): Remove
3375         MASK_SCHED_PROLOG.
3376         (rs6000_override_options): Enable -mdlmzb for 405 and 440.
3377         * config/rs6000/rs6000.md: Add dlmzb support for 405 and 440.
3378
3379 2006-03-13  Uttam Pawar  <uttamp@us.ibm.com>
3380
3381         PR rtl-optimization/25739
3382         * bt-load.c (augment_live_range): Free tos pointer.
3383
3384         * gensupport.c (identify_predicable_attribute): Free
3385         p_false pointer.
3386         * gcov.c (create_file_names): Free name pointer.
3387
3388 2006-03-13  Roger Sayle  <roger@eyesopen.com>
3389
3390         PR middle-end/26557
3391         * stmt.c (emit_case_nodes): Handle the case where the index is a
3392         CONST_INT, where the comparison mode is specified by the index type.
3393
3394 2006-03-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
3395
3396         * pa/pa32-linux.h (CRT_CALL_STATIC_FUNCTION): Define when CRTSTUFFS_O
3397         is defined.
3398
3399 2006-03-13  Richard Sandiford  <richard@codesourcery.com>
3400
3401         * config/mips/mips.md (*branch_fp): Use %Z2 for the condition.
3402         (*branch_fp_inverted): Likewise.
3403
3404 2006-03-13  Jakub Jelinek  <jakub@redhat.com>
3405
3406         PR middle-end/25989
3407         * omp-low.c (expand_omp_for_generic): Mark istart0
3408         and iend0 as addressable.
3409
3410 2006-03-13  Jie Zhang  <jie.zhang@analog.com>
3411
3412         * config/bfin/uclinux.h: Define _GNU_SOURCE in CPLUSPLUS_CPP_SPEC.
3413
3414 2006-03-13  Jeff Law  <law@redhat.com>
3415
3416         * tree-vrp.c (stmt_interesting_for_vrp): Some statements with
3417         virtual operands are interesting.
3418         (vrp_visit_stmt): Corresponding changes.
3419
3420 2006-03-13  Bernd Schmidt  <bernd.schmidt@analog.com>
3421
3422         * config/bfin/lib1funcs.asm (___umodsi3): Use stack to save contents
3423         of RETS.
3424         * config/bfin/bfin.h (TARGET_CPU_CPP_BUILTINS): If
3425         TARGET_ID_SHARED_LIBRARY, define __ID_SHARED_LIB__.
3426         * config/bfin/crti.S: Use it instead of __PIC__.
3427         * config/bfin/crtn.S: Likewise.
3428
3429         * config/bfin/bfin.md (call_value_symbol, sibcall_value_symbol,
3430         call_symbol, sibcall_symbol): Disallow if TARGET_ID_SHARED_LIBRARY,
3431         not if flag_pic.
3432         Lose 'G' modifier for call operand.
3433         * config/bfin/bfin.c (print_operand) <case SYMBOL_REF>: Don't
3434         recognize 'G' modifier.
3435
3436 2006-03-13  Eric Botcazou  <ebotcazou@adacore.com>
3437
3438         PR middle-end/18859
3439         * gimplify.c (gimplify_switch_expr): Discard empty ranges.
3440         * stmt.c (expand_case): Likewise.
3441
3442 2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>
3443
3444         PR rtl-optimization/26254
3445         * loop-invariant.c (seq_insns_valid_p): New function.
3446         (move_invariant_reg): Only emit new code if it is valid.
3447
3448 2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>
3449
3450         * cfgrtl.c (last_loop_beg_note, back_edge_of_syntactic_loop_p):
3451         Removed.
3452         (force_nonfallthru_and_redirect): Do not use last_loop_beg_note.
3453         (rtl_split_edge): Do not use back_edge_of_syntactic_loop_p.
3454         (commit_one_edge_insertion): Do not look for loop notes.
3455
3456 2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>
3457
3458         * jump.c (follow_jumps): Do not check for loop notes.  Move check for
3459         flag_test_coverage out of loop.
3460
3461 2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>
3462
3463         * final.c (shorten_branches): Remove outdated comment, and turn
3464         the if branch that guards it to continue.
3465
3466 2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>
3467
3468         * cfgloop.c (flow_loop_dump): Do not dump loop->invalid field.
3469         * cfgloop.h (struct loop): Remove unused fields.
3470
3471 2006-03-13  Kazu Hirata  <kazu@codesourcery.com>
3472
3473         * doc/invoke.texi (-fdump-rtl-loop): Remove.
3474         (-dL, -fdump-rtl-loop2): Update the dump file names
3475
3476         * doc/invoke.texi: Update dump file names.
3477
3478 2006-03-12  Steven Bosscher  <stevenb.gcc@gmail.com>
3479
3480         * predict.c (estimate_probability): Remove.
3481         * profile.c (rest_of_handle_branch_prob, pass_branch_prob): Remove.
3482         * basic-block.h (estimate_probability): Remove prototype.
3483         * passes.c (finish_optimization_passes): Dump branch prediction or
3484         profiling heuristics to the .profile tree dump.
3485         (init_optimization_passes): Unqueue pass_branch_prob.
3486
3487         * doc/invoke.texi (-fdump-rtl-bp): Remove.
3488
3489 2006-03-11  Steven Bosscher  <stevenb.gcc@gmail.com>
3490
3491         * rtl.def (LABEL_REF): Remove the field for LABEL_NEXTREF.
3492         * rtl.h (LABEL_NEXTREF): Remove field accessor.
3493
3494 2006-03-11  Eric Botcazou  <ebotcazou@adacore.com>
3495
3496         * function.h (frame_offset_overflow): Declare.
3497         * function.c (frame_offset_overflow): New function.
3498         (assign_stack_local_1): Call it to detect that the offset overflows.
3499         * cfgexpand.c (alloc_stack_frame_space): Likewise.
3500
3501 2006-03-11  Steven Bosscher  <stevenb.gcc@gmail.com>
3502
3503         * config/sh/sh.c: Include alloc-pool.h.
3504         (label_ref_list_pool): New alloc pool.
3505         (label_ref_list_t): New type for lists of labels.
3506         (struct pool_node): Make wend a label_ref_list_t.
3507         (add_constant): Use the new type, eradicate LABEL_NEXTREF
3508         references.
3509         (dump_table): Likewise.
3510         (sh_reorg): Set up the alloc pool before using add_constant and
3511         dump_table, and destroy it when finishing.
3512
3513 2006-03-11  Richard Sandiford  <richard@codesourcery.com>
3514
3515         * config/mips/mips.c: Remove redundant comment.
3516
3517 2006-03-10  Jason Merrill  <jason@redhat.com>
3518
3519         PR c/26004
3520         * gimplify.c (gimplify_modify_expr_rhs): Don't do return slot opt if
3521         the target was declared 'register'.
3522
3523 2006-03-10  Adam Nemet  <anemet@caviumnetworks.com>
3524
3525         * genpreds.c (write_insn_constraint_len): Change definition of
3526         insn_constraint_len to return size_t to match the declaration.
3527
3528 2006-03-10  DJ Delorie  <dj@redhat.com>
3529
3530         * config/m32c/m32c.c (m32c_const_ok_for_constraint_p): Bit numbers
3531         start at zero.
3532         (m32c_expand_insv): Fix test for an AND mask.
3533
3534 2006-03-10  Richard Guenther  <rguenther@suse.de>
3535
3536         PR middle-end/26565
3537         * builtins.c (get_pointer_alignment): Handle component
3538         references for field alignment.
3539
3540 2006-03-10  J"orn Rennecke <joern.rennecke@st.com>
3541
3542         * config.gcc (sh*-superh-elf, sh*elf (newlib)): Use newlib.h
3543         when building with libgloss.
3544         (sh*elf): Implement --without-fp option.
3545         (sh64-superh-linux*): Don't multilib.
3546
3547 2006-03-10  J"orn Rennecke <joern.rennecke@st.com>
3548
3549         * struct-equiv.c (rtx_equiv_p): Fix POST_MODIFY case.
3550
3551 2006-03-09  Andrew Pinski  <pinskia@physics.uc.edu>
3552
3553         * tree-ssa-phiopt.c (tree_ssa_phiopt): Add cfgchanged variable.
3554         Set it when one of the replacement functions returned true.
3555         Return TODO_cleanup_cfg if cfgchanged is true.
3556         (pass_phiopt) <todo_flags_finish>: Remove TODO_cleanup_cfg.
3557
3558 2006-03-09  Adam Nemet  <anemet@caviumnetworks.com>
3559
3560         * combine.c (simplify_shift_const_1): Use gen_lowpart_or_truncate
3561         instead of gen_lowpart.
3562
3563 2006-03-09  Richard Sandiford  <richard@codesourcery.com>
3564
3565         * config/mips/mips-protos.h (mips_output_conditional_branch): Change
3566         interface.
3567         (mips_output_order_conditional_branch): Declare.
3568         * config/mips/mips.h (MIPS_BRANCH): New macro.
3569         * config/mips/mips.c (gen_conditional_branch): Use VOIDmode
3570         for the comparison.  Use gen_condjump.
3571         (mips_output_conditional_branch): Rework interface to take the
3572         asm templates for a direct branch and the inverse of a direct branch.
3573         (mips_output_order_conditional_branch): New function.
3574         (mips_builtin_branch_and_move): New function.
3575         (mips_expand_builtin_compare): Use it.  Use VOIDmode for the
3576         branch condition.  Use gen_single_cc as the condition for
3577         __builtin_mips_upper_* or __builtin_mips_lower_*.
3578         (mips_expand_builtin_bposge): Use mips_builtin_branch_and_move.
3579         Use VOIDmode for the branch condition.
3580         * config/mips/predicates.md (order_operator): New predicate.
3581         * config/mips/mips.md (UNSPEC_SINGLE_CC): New constant.
3582         (branch_fp): Rename to...
3583         (*branch_fp): ...this.  Remove mode from comparison operator.
3584         Use new mips_output_conditional_branch interface.
3585         (branch_fp_inverted): Rename to...
3586         (*branch_fp_inverted): ...this and update as for *branch_fp.
3587         (*branch_zero<mode>): Rename to...
3588         (*branch_order<mode>): ...this.  Remove mode from comparison operator.
3589         Use mips_output_order_conditional_branch.  Only accept ordered
3590         comparisons.
3591         (*branch_zero<mode>_inverted): Rename to...
3592         (*branch_order<mode>_inverted): ...this and update as for
3593         *branch_order<mode>.
3594         (*branch_equality<mode>): Accept zero as the second operand to
3595         the equality operator.  Use the new mips_output_conditional_branch
3596         interface.
3597         (*branch_equality<mode>_inverted): Likewise.
3598         (condjump): New expander.
3599         * config/mips/mips-dsp.md (mips_bposge): Remove mode from comparison
3600         operator.
3601         * config/mips/mips-ps-3d.md (bc1any4t, bc1any4f): Likewise.
3602         (bc1any2t, bc1any2f): Likewise.
3603         (single_cc): New expander.
3604         (*branch_upper_lower, *branch_upper_lower_inverted): New patterns.
3605
3606 2006-03-09  Richard Sandiford  <richard@codesourcery.com>
3607
3608         * doc/md.texi: Update documentation of MIPS constraints.
3609         * config/mips/constraints.md: New file.
3610         * config/mips/mips.md: Include it.
3611         * config/mips/mips.c (mips_char_to_class): Delete.
3612         (override_options): Don't initialize mips_char_to_class.
3613         * config/mips/mips.h (mips_char_to_class): Delete.
3614         (REG_CLASS_FROM_LETTER): Delete.
3615         (CONST_OK_FOR_LETTER_P): Delete.
3616         (CONST_DOUBLE_OK_FOR_LETTER_P): Delete.
3617         (EXTRA_CONSTRAINT_Y): Delete.
3618         (EXTRA_CONSTRAINT_STR): Delete.
3619         (CONSTRAINT_LEN): Delete.
3620         (EXTRA_MEMORY_CONSTRAINT): Delete.
3621
3622 2006-03-09  Diego Novillo  <dnovillo@redhat.com>
3623
3624         * tree-cfg.c (move_block_to_fn): Remove the statements from the
3625         original fn's eh regions.
3626
3627 2006-03-09  Eric Botcazou  <ebotcazou@adacore.com>
3628
3629         * fold-const.c (build_range_check): Make sure to use a valid type to
3630         apply the "(c>=low) && (c<=high) into (c-low>=0) && (c-low<=high-low)"
3631         transformation.
3632
3633         (range_predecessor): New static function.
3634         (range_successor): Likewise.
3635         (merge_ranges): Use them to compute predecessors and successors of
3636         range bounds.
3637
3638 2006-03-09  Roger Sayle  <roger@eyesopen.com>
3639
3640         PR middle-end/26561
3641         * fold-const.c (fold_div_compare): When optimizing X/C1 op C2 as
3642         X op C3, consider whether C3 overflows towards +Inf or -Inf.
3643
3644 2006-03-08  DJ Delorie  <dj@redhat.com>
3645
3646         * config/m32c/addsub.md (addqi3): Disparage a0/a1.
3647         (addpsi3): Expand to include memory operands.  Remove
3648         reload-specific splits.
3649         * config/m32c/bitops.md (bset_qi, bset_hi, bclr_qi): New.
3650         (andqi3_16, andhi3_16, iorqi3_16, iorhi3_16): New.
3651         (andqi3_24, andhi3_24, iorqi3_24, iorhi3_24): New.
3652         (andqi3, andhi3, iorqi3, iorhi3): Convert to expanders.
3653         (shift1_qi, shift1_hi, insv): New.
3654         * config/m32c/cond.md (cbranchqi4, cbranchhi4): Remove.
3655         (cbranch<mode>4, stzx_16, stzx_24_<mode>, stzx_reversed,
3656         cmp<mode>, b<code>, s<code>, s<code>_24, movqicc, movhicc,
3657         cond_to_int): New.
3658         * config/m32c/m32c-protos.h: Update as needed.
3659         * config/m32c/m32c.c (m32c_reg_class_from_constraint): Don't
3660         default the Rcr, Rcl, Raw, and Ral constraints.  Add Ra0 and Ra1.
3661         Fail for unrecognized R* constraints.
3662         (m32c_cannot_change_mode_class): Be more picky about pseudos.
3663         (m32c_const_ok_for_constraint_p): Add Imb, Imw, and I00.
3664         (m32c_extra_constraint_p2): Allow (mem (plus (plus fb int) int)).
3665         Add Sp constraint.
3666         (m32c_init_libfuncs): New.
3667         (m32c_legitimate_address_p): Add debug wrapper.
3668         (m32c_rtx_costs): New.
3669         (m32c_address_cost): New.
3670         (conversions): Add 'B' prefix.
3671         (m32c_print_operand): 'h' and 'H' pick lower and upper halves of
3672         operands, or word regnames for QI operands.  'B' prints bit
3673         position.
3674         (m32c_expand_setmemhi): New.
3675         (m32c_expand_movmemhi): New.
3676         (m32c_expand_movstr): New.
3677         (m32c_expand_cmpstr): New.
3678         (m32c_prepare_shift): Shift counts are limited to 16 bits at a time.
3679         (m32c_expand_neg_mulpsi3): Handle non-ints.
3680         (m32c_cmp_flg_0): New.
3681         (m32c_expand_movcc): New.
3682         (m32c_expand_insv): New.
3683         (m32c_scc_pattern): New.
3684         * config/m32c/m32c.h (reg classes): Add AO_REGS and A1_REGS.  Take
3685         a0/a1 out of SIregs.
3686         (STORE_FLAG_VALUE): New.
3687         * config/m32c/m32c.md: Add unspecs for string moves.  Define various mode and
3688         code macros.
3689         (no_insn): New.
3690         * config/m32c/mov.md: Make constraints more liberal.
3691         (zero_extendqihi2): Optimize r0/r1 case.
3692         * config/m32c/muldiv.md (mulpsi3): Check for intvals.
3693         * config/m32c/predicates.md (m32c_any_operand): New.
3694         (m32c_nonimmediate_operand): New.
3695         (m32c_hl_operand): New.
3696         (m32c_r3_operand): New.
3697         (ap_operand): New.
3698         (ma_operand): New.
3699         (memsym_operand): New.
3700         (memimmed_operand): New.
3701         (a_qi_operand): New.
3702         (m32c_eqne_operator): New.
3703         (m32c_1bit8_operand): New.
3704         (m32c_1bit16_operand): New.
3705         (m32c_1mask8_operand): New.
3706         (m32c_1mask16_operand): New.
3707         * config/m32c/blkmov.md: New file.
3708         * config/m32c/t-m32c (MD_FILES): Add blkmov.
3709
3710 2006-03-08  Andreas Tobler  <a.tobler@schweiz.ch>
3711
3712         * dwarf2out.c (expand_builtin_dwarf_sp_column): Make dwarf_regnum
3713         unsigned to fix signed/unsigned comparison issue in
3714         DWARF2_FRAME_REG_OUT.
3715         (expand_builtin_init_dwarf_reg_sizes): Make i unsigned to fix signed/
3716         unsigned comparison issue in DWARF2_FRAME_REG_OUT.
3717
3718         * tree-ssa-operands.c (finalize_ssa_def_ops): Move the declaration
3719         of ptr into the ENABLE_CHECKING section.
3720
3721 2006-03-08  Jeff Law  <law@redhat.com>
3722
3723         * tree-vrp.c (infer_value_range): Only count pointer uses
3724         and dereferences if -fdelete-null-pointer-checks is enabled.
3725
3726         * tree-vrp.c (find_assert_locations): Infer value ranges for
3727         single use pointers, but do not create ASSERT_EXPRs for them.
3728         When a non-null range is inferred for a pointer, backwards
3729         propagate that range to other equivalent pointers through the
3730         use-def chain.
3731
3732 2006-03-08  Paolo Bonzini  <bonzini@gnu.org>
3733
3734         PR bootstrap/26500
3735         * Makefile.in (dvi, html, install-info): Invoke the corresponding
3736         language hook targets.
3737         * ada/Make-lang.in, cp/Make-lang.in, objc/Make-lang.in,
3738         objcp/Make-lang.in: Create stub rules for dvi, html, install-info
3739         if language hook targets were missing.
3740
3741 2006-03-07  Zdenek Dvorak <dvorakz@suse.cz>
3742
3743         * tree-ssa-opfinalize.h: Removed.
3744         * Makefile.in (tree-ssa-operands.o): Remove tree-ssa-opfinalize.h
3745         dependency.
3746         * tree-ssa-operands.c: Do not include tree-ssa-opfinalize.h.
3747         (ALLOC_OPTYPE, APPEND_OP_AFTER, MOVE_HEAD_AFTER, MOVE_HEAD_TO_FREELIST,
3748         INITIALIZE_USE, add_def_op, add_use_op, add_vuse_op, add_maydef_op,
3749         add_mustdef_op, finalize_ssa_def_ops, finalize_ssa_use_ops,
3750         finalize_ssa_v_may_def_ops, finalize_ssa_vuse_ops,
3751         finalize_ssa_v_must_def_ops): New.
3752
3753 2006-03-07  Kenneth Zadeck <zadeck@naturalbridge.com>
3754
3755         * df-scan.c: (df_bb_refs_record): Fix obvious typo with wrong
3756         block as parameter.
3757
3758 2006-03-07  Geoffrey Keating  <geoffk@apple.com>
3759
3760         * varasm.c (assemble_end_function): Say that 'fnname' is unused.
3761
3762         * config/i386/i386.c (ix86_delegitimize_address): Handle Darwin
3763         addresses with offsets; reorganize.
3764
3765         * dwarf2out.c (DWARF2_FRAME_REG_OUT): Move up in file.
3766         (expand_builtin_dwarf_sp_column): Call DWARF2_FRAME_REG_OUT.
3767         (expand_builtin_init_dwarf_reg_sizes): Likewise.
3768
3769 2006-03-08  David Billinghurst <David.Billinghurst@riotinto.com>
3770
3771         PR target/26588
3772         * config/i386/cygwin.h (GOMP_SELF_SPECS): Define.
3773
3774 2006-03-08  Ben Elliston  <bje@au.ibm.com>
3775
3776         * config/fp-bit.h (CMPtype): Typedef to a word mode integer.
3777
3778 2006-03-07  Aldy Hernandez  <aldyh@redhat.com>
3779
3780         PR gomp/26238
3781         * doc/passes.texi (Tree-SSA passes): Document omp lowering and
3782         expansion.
3783
3784 2006-03-07  Richard Guenther  <rguenther@suse.de>
3785
3786         PR tree-optimization/26587
3787         * tree-ssa-structalias.c (handle_ptr_arith): Handle MINUS_EXPR.
3788
3789 2006-03-07  Richard Sandiford  <richard@codesourcery.com>
3790
3791         * varasm.c (assemble_variable): Fix setting of DECL_IN_TEXT_SECTION.
3792
3793 2006-03-07  Richard Sandiford  <richard@codesourcery.com>
3794
3795         * hooks.c (hook_bool_mode_rtx_true): New function.
3796         * hooks.h (hook_bool_mode_rtx_true): Declare.
3797         * toplev.c (compile_file): Call output_shared_constant_pool.
3798         * varasm.c (shared_constant_pool): New variable.
3799         (assemble_start_function, assemble_end_function): Remove arguments
3800         from call to output_constant_pool.
3801         (create_constant_pool): New function, split out from...
3802         (init_varasm_status): ...here.
3803         (force_const_mem): Choose between the shared and per-function constant
3804         pools.  Set current_function_uses_const_pool when reusing old entries
3805         as well as when creating new ones.
3806         (mark_constant): Ignore data argument.
3807         (mark_constants): Remove pool argument.
3808         (mark_constant_pool): Likewise.  Use current_function_uses_const_pool
3809         to decide whether the function uses a constant pool.
3810         (output_constant_pool_contents): New function, split out from...
3811         (output_constant_pool): ...here.
3812         (output_shared_constant_pool): New function.
3813         (init_varasm_once): Initialize shared_constant_pool.
3814         * output.h (output_constant_pool): Delete.
3815         (output_shared_constant_pool): Declare.
3816         * config/s390/s390-protos.h (s390_output_constant_pool): Delete.
3817         * config/i386/i386.c (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Override.
3818
3819 2006-03-06  Nick Clifton  <nickc@redhat.com>
3820
3821         * config/m32r/m32r.h (OPTIMIZATION_OPTIONS): Remove reference to
3822         flag_strength_reduce.
3823
3824 2006-03-06  Ben Elliston  <bje@au.ibm.com>
3825
3826         * config.gcc: Add t-dfprules to $tmake_file for i*86-*-linux* and
3827         x86_64-*-linux* configurations.
3828
3829         * config/dfp-bit.h (CMPtype): Typedef to a word mode integer.
3830         (LIBGCC2_WORDS_BIG_ENDIAN): Define.
3831
3832 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
3833
3834         * tree-ssa-threadupdate.c (rediscover_loops_after_threading):
3835         Remove.
3836         * basic-block.h: Remove the extern for
3837         rediscover_loops_after_threading.
3838
3839         * cfgloop.c (cancel_loop): Make it static.
3840         * cfgloop.h: Remove the prototype for cancel_loop.
3841
3842         * flow.c (recompute_reg_usage): Make it static.
3843         * rtl.h: Remove the prototype for recompute_reg_usage.
3844
3845         * function.c (use_return_register): Make it static.
3846         * function.h: Remove the prototype.
3847
3848 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
3849
3850         * recog.c (volatile_mem_p, validate_change_maybe_volatile):
3851         Remove.
3852         * recog.h: Remove the prototype for
3853         validate_change_maybe_volatile.
3854
3855 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
3856
3857         * rtlanal.c (replace_reg): Remove.
3858         * rtl.h: Remove the prototype for replace_reg.
3859
3860 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
3861
3862         * regclass.c (reg_scan_update): Remove.
3863         (reg_scan_mark_refs): Remove the last argument.
3864         * rtl.h: Remove the prototype for reg_scan_update.
3865
3866 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
3867
3868         * builtins.c, c-pragma.h, c-typeck.c, cgraph.c, cgraphunit.c,
3869         combine.c, common.opt, config/dfp-bit.c, config/i386/i386.c,
3870         config/m68k/m68k.c, config/m68k/m68k.md, config/mt/mt.c,
3871         config/mt/mt.h, config/s390/s390.md, df-core.c, df-problems.c,
3872         df-scan.c, df.h, diagnostic.c, expr.c, function.h, gimplify.c,
3873         loop-invariant.c, omp-low.c, opts.c, passes.c,
3874         rtl-factoring.c, rtlanal.c, struct-equiv.c, tree-cfgcleanup.c,
3875         tree-ssa-loop-niter.c, tree-ssa-loop-prefetch.c,
3876         tree-ssa-structalias.c, tree-ssa-threadedge.c,
3877         tree-ssa-threadupdate.c, tree-vect-patterns.c,
3878         tree-vect-transform.c, tree-vectorizer.h, tree-vrp.c,
3879         unwind-dw2.c: Fix comment typos.  Follow spelling conventions.
3880
3881 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
3882
3883         * dwarf2out.c (dwarf2out_add_library_unit_info): Remove.
3884         * dwarf2out.h: Remove the prototype for
3885         dwarf2out_add_library_unit_info.
3886
3887 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
3888
3889         * tree.c (add_var_to_bind_expr): Remove.
3890         * tree.h: Remove the prototype for add_var_to_bind_expr.
3891
3892 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
3893
3894         * regclass.c (n_non_fixed_regs): Remove.
3895         (init_reg_sets_1, globalize_reg): Remove all uses of
3896         n_non_fixed_regs.
3897         * hard-reg-set.h: Remove the extern for n_non_fixed_regs.
3898
3899 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
3900
3901         * rtlanal.c (insns_safe_to_move_p): Remove.
3902         * rtl.h: Remove the prototype for insns_safe_to_move_p.
3903
3904 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
3905
3906         * expmed.c (expand_mult_add): Remove.
3907         * expr.h: Remove the prototype for expand_mult_add.
3908
3909 2006-03-04  Jakub Jelinek  <jakub@redhat.com>
3910
3911         * unwind-dw2.h (_Unwind_FrameState): Add REG_SAVED_VAL_OFFSET
3912         and REG_SAVED_VAL_EXP constants.
3913         * unwind-dw2.c (struct _Unwind_Context): Add by_value array.
3914         (_Unwind_GetGR, _Unwind_SetGR, _Unwind_GetGRPtr, _Unwind_SetGRPtr):
3915         Handle regs stored by value.
3916         (_Unwind_SetGRValue, _Unwind_GRByValue): New functions.
3917         (execute_cfa_program): Handle DW_CFA_val_offset,
3918         DW_CFA_val_offset_sf and DW_CFA_val_expression.
3919         (uw_update_context_1): Handle REG_SAVED_REG with regs stored by
3920         value specially.  Handle REG_SAVED_VAL_OFFSET and REG_SAVED_VAL_EXP.
3921         (uw_install_context_1): Handle target regs stored by value.
3922
3923 2006-03-03  Daniel Berlin  <dberlin@dberlin.org>
3924
3925         * tree-sra.c (tree_sra): Return todoflags;
3926         (generate_one_element): Set TODO_update_smt_usage if needed.
3927         (pass_sra): Remove TODO_update_smt_usage.
3928         * tree-ssa-forwprop.c (forward_propagate_addr_expr): Add some
3929         parameter.
3930         (tree_ssa_forward_propagate_single_use_vars): Return
3931         TODO_update_smt_usage if we need to update SMT usage.
3932         (pass_forwprop): Remove TODO_update_smt_usage.
3933
3934 2006-03-03  Diego Novillo  <dnovillo@redhat.com>
3935
3936         * tree-ssa-operands.c: Tidy whitespace.  Fix spelling.
3937         (correct_use_link): Remove reference to get_stmt_operands.
3938         (update_stmt_operands): Likewise.
3939         (get_modify_expr_operands): New function factored out of
3940         parse_ssa_operands and get_expr_operands.
3941         Try to create V_MUST_DEFs for LHS by default.
3942         (get_expr_operands) <case MODIFY_EXPR>: Call
3943         get_modify_expr_operands.
3944         <case ARRAY_RANGE_REF>: Handle together with ARRAY_REF.
3945         <case BIT_FIELD_REF>: Clear opf_kill_def from FLAGS.
3946         (parse_ssa_operands) <case MODIFY_EXPR>: Call
3947         get_modify_expr_operands.
3948
3949 2006-03-03  Kazu Hirata  <kazu@codesourcery.com>
3950
3951         * tree-dfa.c (referenced_var_lookup_if_exists): Remove.
3952         * tree-flow.h: Remove the prototype for
3953         referenced_var_lookup_if_exists.
3954
3955 2006-03-03  Steve Ellcey  <sje@cup.hp.com>
3956
3957         PR rtl-optimization/26345
3958         PR target/19061
3959         * config/ia64/predicates.md (basereg_operand): Don't look in subregs.
3960
3961 2006-03-03  Roger Sayle  <roger@eyesopen.com>
3962
3963         PR tree-optimization/26524
3964         * tree-scalar-evolution.c (interpret_rhs_modify_expr): Use
3965         fold_convert to create a constant of the appropriate type.
3966
3967 2006-03-03  Richard Sandiford  <richard@codesourcery.com>
3968
3969         * doc/tm.texi: Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
3970         SYMBOL_REF_IN_BLOCK_P.
3971         * doc/rtl.texi: Likewise.  Refer to SYMBOL_FLAG_HAS_BLOCK_INFO instead
3972         of SYMBOL_FLAG_IN_BLOCK.
3973         * gengtype.c (adjust_field_rtx_def): Use SYMBOL_REF_HAS_BLOCK_INFO_P
3974         instead of SYMBOL_REF_IN_BLOCK_P.
3975         * explow.c (use_anchored_address): Likewise.
3976         * rtl.c (rtx_size): Likewise.
3977         * varasm.c (create_block_symbol): Set SYMBOL_FLAG_HAS_BLOCK_INFO
3978         instead of SYMBOL_FLAG_IN_BLOCK.
3979         (make_decl_rtl): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
3980         SYMBOL_REF_IN_BLOCK_P.
3981         (assemble_variable): Likewise.
3982         (output_constant_def_contents): Likewise.
3983         (output_constant_pool): Likewise.
3984         (default_encode_section_info): Preserve SYMBOL_FLAG_HAS_BLOCK_INFO
3985         instead of SYMBOL_FLAG_IN_BLOCK.
3986         * rtl.h (block_symbol): Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
3987         SYMBOL_REF_IN_BLOCK_P.
3988         (SYMBOL_REF_BLOCK): Likewise.
3989         (SYMBOL_REF_OFFSET): Likewise.
3990         (BLOCK_SYMBOL_CHECK): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
3991         SYMBOL_REF_IN_BLOCK_P.
3992         (SYMBOL_FLAG_IN_BLOCK): Replace with...
3993         (SYMBOL_FLAG_HAS_BLOCK_INFO): ...this.
3994         (SYMBOL_REF_IN_BLOCK_P): Replace with...
3995         (SYMBOL_REF_HAS_BLOCK_INFO_P): ...this.
3996
3997 2006-03-03  Jakub Jelinek  <jakub@redhat.com>
3998
3999         * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Fix pasto.
4000
4001 2006-03-02  Roger Sayle  <roger@eyesopen.com>
4002
4003         * simplify-rtx.c (simplify_unary_operation): When simplifying
4004         (neg (lt X 0)) into (ashiftrt X C) or (lshiftrt X C), make sure
4005         that we perform the right shift in the appropriate mode, and
4006         then extend or truncate the result to requested mode.
4007
4008 2006-03-03  Zdenek Dvorak <dvorakz@suse.cz>
4009
4010         * gengtype.c (main): Handle double_int type.
4011         * tree.h (struct tree_int_cst): Make type of int_cst double_int.
4012         * double-int.c: New file.
4013         * double-int.h: New file.
4014         * system.h: Include doubleint.h.
4015         * Makefile.in (SYSTEM_H): Include double-int.h.
4016         (double-int.o): Add.
4017
4018 2006-03-03  Joseph S. Myers  <joseph@codesourcery.com>
4019
4020         PR bootstrap/26478
4021         * Makefile.in (stmp-int-hdrs): Remove include/unwind.h before
4022         copying over it.
4023
4024 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
4025
4026         * tree-vrp.c (remove_range_assertions): Do not update statements
4027         unnecessarily.
4028
4029 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
4030
4031         * cse.c (rest_of_handle_cse): Do not pass CLEANUP_PRE_LOOP to cfg
4032         cleanup.
4033         * gcse.c (rest_of_handle_gcse): Ditto.
4034         * except.c (gate_handle_eh): Ditto.
4035         * cfgcleanup.c (rest_of_handle_jump2): Ditto.
4036         * basic-block.h (CLEANUP_PRE_LOOP): Remove.
4037
4038 2006-03-02  Eric Christopher  <echristo@apple.com>
4039
4040         * config/i386/i386.c (machopic_output_stub): Add indirection to
4041         jump.
4042
4043 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
4044
4045         * loop.c: Removed.
4046
4047 2006-03-02  David S. Miller  <davem@sunset.davemloft.net>
4048
4049         Sun Niagara specific optimizations.
4050         * config.gcc: Recognize niagara as target.
4051         * config/sparc/sparc.h (SPARC_RELAXED_ORDERING): Mention Niagara.
4052         (TARGET_CPU_niagara): Define.
4053         (CPP_CPU64_DEFAULT_SPEC): Define __sparc_v9__ for Niagara.
4054         (ASM_CPU64_DEFAULT_SPEC): Pass -Av9b for Niagara.
4055         (CPP_CPU_SPEC): Handle -mcpu=niagara.
4056         (ASM_CPU_SPEC): Likewise.
4057         (PROCESSOR_NIAGARA): New enum entry.
4058         (REGISTER_MOVE_COST): Handle Niagara.
4059         (BRANCH_COST, PREFETCH_BLOCK, SIMULTANEOUS_PREFETCHES): Likewise.
4060         * config/sparc/sparc.c (niagara_costs): New processor_costs entry.
4061         (sparc_override_options): Recognize "niagara", set appropriate
4062         default MASK_* values for it, and align functions to 32-bytes
4063         by default just like ULTRASPARC/ULTRASPARC3.
4064         (sparc_initialize_trampoline): Handle niagara like ultrasparc.
4065         (sparc64_initialize_trampoline): Likewise.
4066         (sparc_use_sched_lookahead): Use zero for niagara.
4067         (sparc_issue_rate): Use one for niagara.
4068         * config/sparc/niagara.md: New file.
4069         * config/sparc/sparc.md: Include it.
4070         * config/sparc/sol2-bi.h (CPP_CPU64_DEFAULT_SPEC,
4071         ASM_CPU32_DEFAULT_SPEC, ASM_CPU64_DEFAULT_SPEC): Set appropriately
4072         when default cpu is niagara.
4073         (CPP_CPU_SPEC): Handle -mcpu=niagara.
4074         (ASM_CPU_SPEC): Likewise.
4075         * config/sparc/sol2.h (ASM_CPU_DEFAULT_SPEC): Set appropriately
4076         when default cpu is niagara.
4077         (ASM_CPU_SPEC): Handle -mcpu=niagara.
4078         * config/sparc/linux64.h: Handle a default of TARGET_CPU_niagara
4079         just like v9/ultrasparc/ultrasparc3.
4080         * doc/invoke.texi: Add documentation for "niagara" and improve
4081         existing documentation for ultrasparc variants.
4082
4083 2006-03-02  Diego Novillo  <dnovillo@redhat.com>
4084
4085         * tree-ssa-operands.c (update_stmt_operands): Update documentation.
4086
4087 2006-03-02  Richard Sandiford  <richard@codesourcery.com>
4088
4089         * doc/tm.texi (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Document.
4090         (ASM_OUTPUT_BSS): Describe the two ways of handling global BSS,
4091         and say that only one is needed.
4092         * doc/rtl.texi (SYMBOL_REF_BLOCK): Say that the block can be null.
4093         * target.h (have_switchable_bss_sections): New hook.
4094         * explow.c (use_anchored_address): Check that the symbol is in a block.
4095         * varasm.c (tls_comm_section, comm_section, lcomm_section)
4096         (bss_noswitch_section): New variables.
4097         (get_unnamed_section): Add SECTION_UNNAMED to the flags.
4098         (get_noswitch_section): New function.
4099         (get_block_for_section): Allow SECT to be null.
4100         (unlikely_text_section_p): Use SECTION_STYLE.
4101         (bss_initializer_p): New function.
4102         (get_variable_section): Move earlier in file.  Take a new argument,
4103         prefer_noswitch_p.  Move bss checks from assemble_variable to here.
4104         Return one of the new *_sections in such cases.
4105         (get_block_for_decl): New function, extracting some logic from
4106         use_blocks_for_decl_p.
4107         (change_symbol_section): Remove in favor of...
4108         (change_symbol_block): ...this new function.
4109         (use_blocks_for_decl_p): Remove checks now performed by
4110         get_block_for_decl.
4111         (make_decl_rtl): Use change_symbol_block and get_block_for_decl.
4112         (ASM_EMIT_LOCAL, ASM_EMIT_BSS, ASM_EMIT_COMMON): Delete in favor of...
4113         (emit_local, emit_bss, emit_common): ...these new functions.
4114         Return true if the alignment was honored.
4115         (emit_tls_common): New function.
4116         (asm_emit_uninitialised): Delete.
4117         (assemble_variable_noswitch): New function, split out from...
4118         (assemble_variable): ...here.  Don't make decisions about common
4119         variables here.  Globalize all public decls that go into non-common
4120         sections.  Check whether SYMBOL_REF_BLOCK is null.
4121         (output_constant_def_contents): Check whether SYMBOL_REF_BLOCK is null.
4122         (output_constant_pool): Likewise.
4123         (init_varasm_once): Initialize the new section variables.
4124         (have_global_bss_p): New function.
4125         (categorize_decl_for_section): Use bss_initializer_p.
4126         (switch_to_section): Use SECTION_STYLE.  Abort for SECTION_NOSWITCH.
4127         (place_block_symbol): Assert that the symbol must be in a block.
4128         * target-def.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): New macro.
4129         (TARGET_INITIALIZER): Include it.
4130         * rtl.h (SYMBOL_REF_BLOCK): Document the null alternative.
4131         * output.h (SECTION_STYLE_MASK, SECTION_COMMON): New macros.
4132         (SECTION_MACH_DEP): Bump by two.
4133         (SECTION_UNNAMED, SECTION_NOSWITCH): New macros.
4134         (unnamed_section): Mention SECTION_UNNAMED in comment.
4135         (named_section): Likewise SECTION_NAMED.
4136         (noswitch_section_callback): New type.
4137         (noswitch_section): New structure.
4138         (section): Add a noswitch_section alternative.
4139         (SECTION_STYLE): New macro.
4140         (tls_comm_section, comm_section, lcomm_section): Declare.
4141         (bss_noswitch_section, have_global_bss_p): Declare.
4142         * config/elfos.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
4143         * config/iq2000/iq2000.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
4144         Override.
4145         * config/v850/v850.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
4146         * config/stormy16/stormy16.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
4147         Override.
4148
4149 2006-03-02  Daniel Berlin <dberlin@dberlin.org>
4150
4151         * gcc/tree-vrp.c (execute_vrp): Return value.
4152         * gcc/regrename.c (rest_of_handle_regrename): Ditto.
4153         * gcc/tree-into-ssa.c (rewrite_into_ssa): Ditto.
4154         * gcc/tree-complex.c (tree_lower_complex): Ditto.
4155         (tree_lower_complex_O0): Ditto.
4156         * gcc/tracer.c (rest_of_handle_tracer): Ditto.
4157         * gcc/postreload-gcse.c (rest_of_handle_gcse2): Ditto.
4158         * gcc/postreload.c (rest_of_handle_postreload): Ditto.
4159         * gcc/tree-tailcall.c (execute_tail_recursion): Ditto.
4160         (execute_tail_calls): Ditto.
4161         * gcc/tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
4162         * gcc/tree.h (init_function_for_compilation): Ditto.
4163         * gcc/ipa-cp.c (ipcp_driver): Ditto.
4164         * gcc/tree-scalar-evolution.c (scev_const_prop): Ditto.
4165         * gcc/tree-scalar-evolution.h (scev_const_prop): Ditto.
4166         * gcc/final.c (compute_alignments): Ditto.
4167         (rest_of_handle_final): Ditto.
4168         (rest_of_handle_shorten_branches): Ditto.
4169         (rest_of_clean_state): Ditto.
4170         * gcc/omp-low.c (execute_expand_omp): Ditto.
4171         (execute_lower_omp): Ditto.
4172         * gcc/tree-ssa-dse.c (tree_ssa_dse): Ditto.
4173         * gcc/ipa-reference.c (static_execute): Ditto.
4174         * gcc/tree-ssa-uncprop.c (tree_ssa_uncprop): Ditto.
4175         * gcc/reorg.c (rest_of_handle_delay_slots): Ditto.
4176         (rest_of_handle_machine_reorg): Ditto.
4177         * gcc/cgraphunit.c (rebuild_cgraph_edges): Ditto.
4178         * gcc/flow.c (recompute_reg_usage): Ditto.
4179         (rest_of_handle_remove_death_notes): Ditto.
4180         (rest_of_handle_life): Ditto.
4181         (rest_of_handle_flow2): Ditto.
4182         * gcc/tree-ssa-copyrename.c (rename_ssa_copies): Ditto.
4183         * gcc/tree-ssa-ccp.c (do_ssa_ccp): Ditto.
4184         (do_ssa_store_ccp): Ditto.
4185         (execute_fold_all_builtins): Ditto.
4186         * gcc/mode-switching.c (rest_of_handle_mode_switching): Ditto.
4187         * gcc/modulo-sched.c (rest_of_handle_sms): Ditto.
4188         * gcc/ipa-pure-const.c (static_execute): Ditto.
4189         * gcc/cse.c (rest_of_handle_cse): Ditto.
4190         (rest_of_handle_cse2): Ditto.
4191         * gcc/web.c (rest_of_handle_web): Ditto.
4192         * gcc/tree-stdarg.c (execute_optimize_stdarg): Ditto.
4193         * gcc/tree-ssa-math-opts.c (execute_cse_reciprocals): Ditto.
4194         * gcc/tree-ssa-dom.c (tree_ssa_dominator_optimize): Ditto.
4195         * gcc/tree-nrv.c (tree_nrv): Ditto.
4196         (execute_return_slot_opt): Ditto.
4197         * gcc/tree-ssa-alias.c (compute_may_aliases): Ditto.
4198         (create_structure_vars): Ditto.
4199         * gcc/loop-init.c (rtl_loop_init): Ditto.
4200         (rtl_loop_done): Ditto.
4201         (rtl_move_loop_invariants): Ditto.
4202         (rtl_unswitch): Ditto.
4203         (rtl_unroll_and_peel_loops): Ditto.
4204         (rtl_doloop): Ditto.
4205         * gcc/gimple-low.c (lower_function_body): Ditto.
4206         (mark_used_blocks): Ditto.
4207         * gcc/tree-ssa-sink.c (execute_sink_code): Ditto.
4208         * gcc/ipa-inline.c (cgraph_decide_inlining): Ditto.
4209         (cgraph_early_inlining): Ditto.
4210         * gcc/global.c (rest_of_handle_global_alloc): Ditto.
4211         * gcc/jump.c (cleanup_barriers): Ditto.
4212         (purge_line_number_notes): Ditto.
4213         * gcc/ifcvt.c (rest_of_handle_if_conversion): Ditto.
4214         (rest_of_handle_if_after_reload): Ditto.
4215         * gcc/tree-ssa-loop.c (tree_ssa_loop_init): Ditto.
4216         (tree_ssa_loop_im): Ditto.
4217         (tree_ssa_loop_unswitch): Ditto.
4218         (tree_vectorize): Ditto.
4219         (tree_linear_transform): Ditto.
4220         (tree_ssa_loop_ivcanon): Ditto.
4221         (tree_ssa_empty_loop): Ditto.
4222         (tree_ssa_loop_bounds): Ditto.
4223         (tree_complete_unroll): Ditto.
4224         (tree_ssa_loop_prefetch): Ditto.
4225         (tree_ssa_loop_ivopts): Ditto.
4226         (tree_ssa_loop_done): Ditto.
4227         * gcc/predict.c (tree_estimate_probability): Ditto.
4228         * gcc/recog.c (split_all_insns_noflow): Ditto.
4229         (rest_of_handle_peephole2): Ditto.
4230         (rest_of_handle_split_all_insns): Ditto.
4231         * gcc/tree-eh.c (lower_eh_constructs): Ditto.
4232         * gcc/regmove.c (rest_of_handle_regmove): Ditto.
4233         (rest_of_handle_stack_adjustments): Ditto.
4234         * gcc/local-alloc.c (rest_of_handle_local_alloc): Ditto.
4235         * gcc/function.c (instantiate_virtual_regs): Ditto.
4236         (init_function_for_compilation): Ditto.
4237         (rest_of_handle_check_leaf_regs): Ditto.
4238         * gcc/gcse.c (rest_of_handle_jump_bypass): Ditto.
4239         (rest_of_handle_gcse): Ditto.
4240         * gcc/ipa-type-escape.c (type_escape_execute): Ditto.
4241         * gcc/alias.c (rest_of_handle_cfg): Ditto.
4242         * gcc/tree-if-conv.c (main_tree_if_conversion): Ditto.
4243         * gcc/profile.c (rest_of_handle_branch_prob): Ditto.
4244         * gcc/tree-ssa-phiopt.c (tree_ssa_phiopt): Ditto.
4245         * gcc/rtl-factoring.c (rest_of_rtl_seqabstr): Ditto.
4246         * gcc/bt-load.c (rest_of_handle_branch_target_load_optimize): Ditto
4247         * gcc/tree-dfa.c (find_referenced_vars): Ditto.
4248         * gcc/except.c (set_nothrow_function_flags): Ditto.
4249         (convert_to_eh_region_ranges): Ditto.
4250         (rest_of_handle_eh): Ditto.
4251         * gcc/emit-rtl.c (unshare_all_rtl): Ditto.
4252         (remove_unnecessary_notes): Ditto.
4253         * gcc/except.h (set_nothrow_function_flags): Ditto.
4254         (convert_to_eh_region_ranges): Ditto.
4255         * gcc/cfgexpand.c (tree_expand_cfg): Ditto.
4256         * gcc/tree-cfgcleanup.c (merge_phi_nodes): Ditto.
4257         * gcc/tree-ssa-pre.c (do_pre): Ditto.
4258         (execute_fre): Ditto.
4259         * gcc/cfgcleanup.c (rest_of_handle_jump): Ditto.
4260         (rest_of_handle_jump2): Ditto.
4261         * gcc/tree-sra.c (tree_sra): Ditto.
4262         * gcc/tree-mudflap.c (execute_mudflap_function_ops): Ditto.
4263         (execute_mudflap_function_decls): Ditto.
4264         * gcc/tree-ssa-copy.c (do_copy_prop): Ditto.
4265         (do_store_copy_prop): Ditto.
4266         * gcc/ipa-prop.h (ipcp_driver): Ditto.
4267         * gcc/cfglayout.c (insn_locators_initialize): Ditto.
4268         * gcc/tree-ssa-forwprop.c
4269         (tree_ssa_forward_propagate_single_use_vars): Ditto.
4270         * gcc/cfglayout.h (insn_locators_initialize): Ditto.
4271         * gcc/tree-ssa-dce.c (tree_ssa_dce): Ditto.
4272         * gcc/tree-ssa.c (execute_early_warn_uninitialized): Ditto.
4273         (execute_late_warn_uninitialized): Ditto.
4274         * gcc/rtl.h (cleanup_barriers): Ditto.
4275         (split_all_insns_noflow): Ditto.
4276         (purge_line_number_notes): Ditto.
4277         (unshare_all_rtl): Ditto.
4278         (remove_unnecessary_notes): Ditto.
4279         (recompute_reg_usage): Ditto.
4280         (variable_tracking_main): Ditto.
4281         * gcc/integrate.c (emit_initial_value_sets): Ditto.
4282         * gcc/integrate.h (emit_initial_value_sets): Ditto.
4283         * gcc/tree-optimize.c (execute_free_datastructures): Ditto
4284         (execute_free_cfg_annotations): Ditto.
4285         (execute_fixup_cfg): Ditto.
4286         (execute_cleanup_cfg_pre_ipa): Ditto.
4287         (execute_cleanup_cfg_post_optimizing): Ditto.
4288         (execute_init_datastructures): Ditto.
4289         * gcc/tree-object-size.c (compute_object_sizes): Ditto.
4290         * gcc/combine.c (rest_of_handle_combine): Ditto.
4291         * gcc/tree-outof-ssa.c (rewrite_out_of_ssa): Ditto.
4292         * gcc/bb-reorder.c (duplicate_computed_gotos): Ditto.
4293         (rest_of_handle_reorder_blocks): Ditto.
4294         (rest_of_handle_partition_blocks): Ditto.
4295         * gcc/var-tracking.c (variable_tracking_main): Ditto.
4296         * gcc/tree-profile.c (tree_profiling): Ditto.
4297         * gcc/tree-vect-generic.c (expand_vector_operations): Ditto.
4298         * gcc/reg-stack.c (rest_of_handle_stack_regs): Ditto.
4299         * gcc/sched-rgn.c (rest_of_handle_sched): Ditto.
4300         (rest_of_handle_sched2): Ditto.
4301         * gcc/basic-block.h (free_bb_insn): Ditto.
4302         * gcc/tree-ssa-structalias.c (ipa_pta_execute): Ditto.
4303         * gcc/tree-cfg.c (execute_build_cfg): Ditto.
4304         (remove_useless_stmts): Ditto.
4305         (split_critical_edges): Ditto.
4306         (execute_warn_function_return): Ditto.
4307         (execute_warn_function_noreturn): Ditto.
4308         * gcc/tree-ssa-reassoc.c (execute_reassoc): Ditto.
4309         * gcc/cfgrtl.c (free_bb_for_insn): Ditto.
4310         * gcc/passes.c (execute_one_pass): Run additional
4311         todos returned by execute function.
4312         * gcc/tree-pass.h (struct tree_opt_pass): Make execute
4313         return a value.
4314
4315 2006-03-02  Richard Guenther  <rguenther@suse.de>
4316
4317         * tree-ssa-alias.c (find_used_portions): Consider taking
4318         the address as making the variable not write-only.
4319
4320 2006-03-02  Nick Clifton  <nickc@redhat.com>
4321
4322         * config.gcc (default_use_cxa_atexit): Extend the description of
4323         this configure variable.  Set its default value to "yes" for
4324         Linux, NetBSD and ELF targets on the assumption that they will
4325         use C libraries with the __cxa_atexit function.
4326
4327 2006-03-02  Ben Elliston  <bje@au.ibm.com>
4328
4329         * config/rs6000/linux-unwind.h (frob_update_context): Mark `fs'
4330         parameter as unused to suppress a build warning.
4331
4332 2006-03-02  Ben Elliston  <bje@au.ibm.com>
4333
4334         * mklibgcc.in: Depend on config/dfp-bit.h in rules that compile
4335         config/dfp-bit.c.
4336
4337 2006-03-01  Roger Sayle  <roger@eyesopen.com>
4338
4339         PR other/26489
4340         * gthr-posix.h (__gthrw2): Define to take three parameters, the
4341         declared name, the weak reference name, and the typeof name.
4342         (__gthrw): Avoid expanding the declared name suffix.
4343         (__gthrw3): New Tru64 specific macro to simplify the OSF/1 decls.
4344
4345 2006-03-01  Jakub Jelinek  <jakub@redhat.com>
4346
4347         * dwarf2.h (DW_TAG_condition, DW_TAG_shared_type): New constants
4348         from DWARF 3.
4349         (DW_AT_description, DW_AT_binary_scale, DW_AT_decimal_scale,
4350         DW_AT_small, DW_AT_decimal_sign, DW_AT_digit_count,
4351         DW_AT_picture_string, DW_AT_mutable, DW_AT_threads_scaled,
4352         DW_AT_explicit, DW_AT_object_pointer, DW_AT_endianity,
4353         DW_AT_elemental, DW_AT_pure, DW_AT_recursive): New.
4354         (DW_OP_form_tls_address, DW_OP_call_frame_cfa, DW_OP_bit_piece): New.
4355         (DW_ATE_packed_decimal, DW_ATE_numeric_string, DW_ATE_edited,
4356         DW_ATE_signed_fixed, DW_ATE_unsigned_fixed): New.
4357         (DW_DS_unsigned, DW_DS_leading_overpunch, DW_DS_trailing_overpunch,
4358         DW_DS_leading_separate, DW_DS_trailing_separate): New.
4359         (DW_END_default, DW_END_big, DW_END_little): New.
4360         (DW_END_lo_user, DW_END_hi_user): Define.
4361         (DW_LNE_lo_user, DW_LNE_hi_user): Define.
4362         (DW_CFA_val_offset, DW_CFA_val_offset_sf, DW_CFA_val_expression): New.
4363         (DW_LANG_PLI, DW_LANG_ObjC, DW_LANG_ObjC_plus_plus, DW_LANG_UPC,
4364         DW_LANG_D): New.
4365
4366 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
4367
4368         * tree.def (SYMBOL_MEMORY_TAG): Rename from TYPE_MEMORY_TAG.
4369         Update all users.
4370         * tree-pass.h (PROP_smt_usage): Rename from PROP_tmt_usage.
4371         Update all users.
4372         (TODO_update_smt_usage): Rename from TODO_update_tmt_usage.
4373         Update all users.
4374         * tree.h (SMT_USED_ALONE): Rename from TMT_USED_ALONE.
4375         Update all users.
4376         * tree-flow.h (struct var_ann_d): Rename field 'type_mem_tag'
4377         to 'symbol_mem_tag'.
4378         Update all users.
4379         * doc/tree-ssa.texi: Update documentation to reflect TMT->SMT
4380         rename.
4381
4382 2006-03-01  Roger Sayle  <roger@eyesopen.com>
4383
4384         * builtins.c (fold_builtin_copysign): Delete unreachable code.
4385
4386 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
4387
4388         PR target/25761
4389         * config/darwin.h (MACHOPIC_JUST_INDIRECT): Check just
4390         MACHO_DYNAMIC_NO_PIC_P.
4391         (MACHOPIC_PURE): Check flag_pic and not MACHO_DYNAMIC_NO_PIC_P.
4392
4393 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
4394
4395         PR target/26389
4396         * config/darwin-protos.h (darwin_asm_output_anchor):
4397         Declare.
4398         * config/darwin-sections.def (cstring_section):
4399         Add SECTION_MERGE to the flags.
4400         (literal4_section): Likewise.
4401         (literal8_section): Likewise.
4402         (objc_selector_refs_section): Likewise.
4403         (objc_cls_refs_section): Likewise.
4404         * config/darwin.c (darwin_asm_output_anchor): New
4405         function.
4406         * config/darwin.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
4407
4408 2006-03-01  Daniel Berlin  <dberlin@dberlin.org>
4409
4410         Fix PR tree-optimization/26443
4411         * tree-vrp.c (pass_vrp): Add TODO_update_tmt_usage
4412         to todo and PROP_tmt_usage to properties_destroyed.
4413         * tree-ssa-ccp.c (pass_ccp): Ditto.
4414         (pass_store_ccp): Ditto.
4415         * tree-ssa-dom.c (pass_dominator): Ditto.
4416
4417 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
4418
4419         * tree-ssa-operands.c: Cleanup whitespace.
4420         (get_asm_expr_operands): Move before first invocation.
4421         (get_indirect_ref_operands): Likewise.
4422         (get_tmr_operands): Likewise.
4423         (get_call_expr_operands): Likewise.
4424         (append_def): Likewise.
4425         (append_use): Likewise.
4426         (append_v_may_def): Likewise.
4427         (append_v_must_def): Likewise.
4428         (add_call_clobber_ops): Likewise.
4429         (add_call_read_ops): Likewise.
4430         (add_stmt_operand): Likewise.
4431         (add_virtual_operand): Likewise.
4432         (build_ssa_operands): Likewise.
4433
4434 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
4435
4436         PR middle-end/26022
4437         Revert:
4438         PR middle-end/24437
4439         * tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
4440         with a call expr to ...
4441         * fold-const.c (fold_ternary) <case CALL_EXPR>: Here.
4442
4443 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
4444
4445         * tree-vrp.c (extract_range_from_assert): Remove special
4446         handling for types with super-types.
4447
4448 2006-03-01  Ben Elliston  <bje@au.ibm.com>
4449
4450         * config.gcc: Add t-dfprules to $tmake_file for powerpc-*-linux*
4451         and powerpc64-*-linux* configurations.
4452         * config/t-dfprules: New file.
4453
4454         * mklibgcc.in: Add logic to handle $DFP_ENABLE and $DFP_CFLAGS.
4455         Compile dfp-bit.c from the source directory using -DWIDTH and
4456         $DFP_CFLAGS to control the compilation of that file, rather than
4457         generating width-specific versions in the build directory.
4458         * Makefile.in (libgcc.mk): Pass down DFP_ENABLE and DFP_CFLAGS.
4459         (LIBGCC_DEPS): Replace $(D32PBIT) et al with config/dfp-bit.[hc].
4460
4461 2006-02-28  Zack Weinberg  <zackw@panix.com>
4462
4463         * doc/md.texi: Avoid use of @headitem so that makeinfo <4.7
4464         continues to work.
4465
4466 2006-02-28  Eric Christopher  <echristo@apple.com>
4467
4468         * config/rs6000/darwin.h (ENABLE_STACK_EXECUTE): Define.
4469         Set up IN_LIBGCC definition of TARGET_64BIT.
4470         * config/i386/darwin.h (ENABLE_STACK_EXECUTE): Define.
4471
4472 2006-02-28  Roger Sayle  <roger@eyesopen.com>
4473
4474         PR middle-end/14752
4475         * c-common.c (c_common_truthvalue_conversion) <MINUS_EXPR,
4476         BIT_XOR_EXPR, BIT_AND_EXPR>: Delete.  Let fold optimize these
4477         cases via the construction of "expr != 0".
4478
4479 2006-02-28  Steven Bosscher  <stevenb.gcc@gmail.com>
4480
4481         * alias.c (alias_invariant, alias_invariant_size): Remove.
4482         (record_base_value): Remove.
4483         (memrefs_conflict_p): Don't look at alias_invariant.
4484         (end_alias_analysis): Don't free it.
4485         * alias.h (record_base_value): Remove prototype.
4486
4487 2006-02-28  Paolo Bonzini  <bonzini@gnu.org>
4488             Adam Nemet  <anemet@caviumnetworks.com>
4489
4490         * rtl.h (truncated_to_mode): Declare it.
4491         (struct rtl_hooks): Add reg_truncated_to_mode hook.
4492         * rtlhooks-def.h (RTL_HOOKS_REG_TRUNCATED_TO_MODE): New macro.
4493         (RTL_HOOKS_INITIALIZER): Include it.
4494         * rtlhooks.c (reg_truncated_to_mode_general): New function.
4495         * combine.c (RTL_HOOKS_REG_TRUNCATED_TO_MODE): Override to
4496         reg_truncated_to_mode.
4497         * rtlanal.c (truncated_to_mode): Define it.
4498         * simplify-rtx.c (simplify_unary_operation_1): Use it.
4499
4500 2006-02-28  Jeff Law  <law@redhat.com>
4501
4502         * tree-chrec.c (chrec_convert_aggressive): Do not eliminate
4503         conversions where TYPE_MIN_VALUE/TYPE_MAX_VALUE do not cover
4504         the range allowed by TYPE_PRECISION.
4505
4506         * tree.h (strct phi_arg_d): Remove unused NONZERO field.
4507
4508 2006-02-28  Dorit Nuzman  <dorit@il.ibm.com>
4509
4510         PR tree-optimization/26419
4511         * doc/invoke.texi (ftree-vectorizer-verbose): Add information on
4512         values of n.
4513
4514 2006-02-27  Zack Weinberg  <zackw@panix.com>
4515
4516         * doc/md.texi: Fix typo in previous change.
4517
4518 2006-02-27  Kenneth Zadeck <zadeck@naturalbridge.com>
4519
4520         * df.c: Remove.
4521
4522 2006-02-27  Zack Weinberg  <zackw@panix.com>
4523
4524         * rtl.def (define_constraint, define_register_constraint)
4525         (define_memory_constraint, define_address_constraint): New MD forms.
4526         * gensupport.c (process_rtx): Put define_constraint etc on the
4527         predicate queue.
4528         * genpreds.c (process_define_predicate): Adjust comment.  Validate
4529         the name, and call validate_exp to validate the expression.
4530         (mark_mode_tests, write_extract_subexp): Can assume correct input.
4531         (write_predicate_expr): Likewise.  NAME argument no longer necessary;
4532         all callers changed.
4533         (validate_exp, needs_variable, struct constraint_data)
4534         (constraints_by_letter_table, first_constraint, last_constraint_ptr)
4535         (FOR_ALL_CONSTRAINTS, generic_constraint_letters, const_int_constraints)
4536         (const_dbl_constraints, constraint_max_namelen)
4537         (have_register_constraints, have_memory_constraints)
4538         (have_address_constraints, have_address_constraints)
4539         (have_extra_constraints, have_const_int_constraints)
4540         (have_const_dbl_constraints, mangle, add_constraint)
4541         (process_define_constraint, process_define_register_constraint)
4542         (write_enum_constraint_num, write_lookup_constraint)
4543         (write_insn_constraint_len, write_regclass_for_constraint)
4544         (write_constraint_satisfied_p, write_insn_const_int_ok_for_constraint)
4545         (write_insn_extra_memory_constraint)
4546         (write_insn_extra_address_constraint)
4547         (write_satisfies_constraint_fns): New.
4548         (write_tm_preds_h): If we have new-style constraint definitions,
4549         prototype the functions generated from them, and define the
4550         old constraint interface (still used by generic code) in terms of
4551         those functions.
4552         (write_insn_preds_c): If we have new-style constraint definitions,
4553         generate all relevant functions from those definitions.
4554         (main): Handle define_constraint etc.
4555         * genoutput.c (struct constraint_data, indep_constraints)
4556         (mdep_constraint_letters, constraints_by_letter_table, note_constraint)
4557         (mdep_constraint_len): New data structures and functions, defined
4558         #ifdef USE_MD_CONSTRAINTS.
4559         (check_constraint_len): Don't define #ifdef USE_MD_CONSTRAINTS.
4560         (validate_insn_alternatives): If USE_MD_CONSTRAINTS is defined,
4561         use new logic to validate operand constraints against constraint
4562         definitions.
4563         (main): Process define_constraint etc. if USE_MD_CONSTRAINTS is
4564         defined.
4565         * defaults.h: If none of the old-style constraint macros are
4566         defined, define USE_MD_CONSTRAINTS; do not provide defaults for any
4567         old-style macros; and poison REG_CLASS_FROM_LETTER,
4568         CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P, and
4569         EXTRA_CONSTRAINT.
4570         * recog.c (reg_fits_class_p): If cl is NO_REGS, return 0 immediately.
4571         * doc/md.texi: Document new constraint-definition mechanism and the
4572         C interface it provides.  Remove references to old mechanism
4573         elsewhere in the document.
4574         (Machine Constraints): Use pathnames relative to gcc directory,
4575         i.e. config/ARCH/FILE.  Change i386 section to refer to
4576         config/i386/predicates.md; update that section to match docstrings.
4577         * doc/tm.texi: Move all documentation of the old constraint-
4578         definition macros to their own section, clearly mark as obsolete.
4579
4580         * config/i386/predicates.md (R, q, Q, l, a, b, c, d, S, D, A, f, t)
4581         (u, y, x, Y, I, J, K, L, M, N, O, G, C, e, Z): New constraint
4582         definitions.
4583         * config/i386/i386.h (REG_CLASS_FROM_LETTER, CONST_OK_FOR_LETTER_P)
4584         (CONST_DOUBLE_OK_FOR_LETTER_P, EXTRA_CONSTRAINT): Delete.
4585         * config/i386/i386.md (*movdf_nointeger): Remove stray 'H' from
4586         constraint strings.
4587         (splits and peepholes): Use satisfies_constraint_*.
4588         * config/i386/i386.c (memory_address_length)
4589         (ix86_attr_length_immediate_default): Use satisfies_constraint_*.
4590
4591 2006-02-27  Daniel Berlin  <dberlin@dberlin.org>
4592
4593         * lambda-code.c (can_convert_to_perfect_nest): Allow any type of
4594         scalar operation to be put back into the loop.
4595
4596 2006-02-27  Jakub Jelinek  <jakub@redhat.com>
4597
4598         PR other/26208
4599         * unwind-dw2.c (struct _Unwind_Context): Add signal_frame field.
4600         (extract_cie_info): Handle S flag in augmentation string.
4601         (execute_cfa_program): If context->signal_frame, execute also
4602         fs->pc == context->ra instructions.
4603         (uw_frame_state_for): If context->signal_frame, don't subtract one
4604         from context->ra to find FDE.
4605         (uw_update_context_1): Set context->signal_frame to
4606         fs->signal_frame.
4607         (_Unwind_GetIPInfo): New function.
4608         * unwind-dw2.h (_Unwind_FrameState): Add signal_frame field.
4609         * unwind-c.c (PERSONALITY_FUNCTION): Use _Unwind_GetIPInfo instead
4610         of _Unwind_GetIP.
4611         * unwind-sjlj.c (_Unwind_GetIPInfo): New function.
4612         * unwind-generic.h (_Unwind_GetIPInfo): New prototype.
4613         * unwind-compat.c (_Unwind_GetIPInfo): New function.
4614         * libgcc-std.ver (_Unwind_GetIPInfo): Export @@GCC_4.2.0.
4615         * config/ia64/unwind-ia64.c (_Unwind_GetIPInfo): New function.
4616         * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Define.
4617         * config/i386/linux-unwind.h (x86_fallback_frame_state,
4618         x86_64_fallback_frame_state): Set fs->signal_frame.
4619         * config/rs6000/linux-unwind.h (ppc_fallback_frame_state): Likewise.
4620         (MD_FROB_UPDATE_CONTEXT): Define unconditionally.
4621         (frob_update_context): Likewise.  Workaround missing S flag in
4622         Linux 2.6.12 - 2.6.16 kernel vDSOs.
4623         * config/s390/linux-unwind.h (s390_fallback_frame_state): Likewise.
4624         Remove the psw_addr + 1 hack.
4625
4626 2006-02-27  Daniel Berlin  <dberlin@dberlin.org>
4627
4628         * tree-ssa-structalias.c (get_constraint_for): Move code to deal
4629         with aggregates here.
4630         (find_func_aliases): Remove code for &<aggregate> from here.
4631
4632 2006-02-26  Roger Sayle  <roger@eyesopen.com>
4633
4634         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold (~X & C) eq/ne 0 as
4635         (X & C) ne/eq 0, where C is a single bit, i.e. a power of two.
4636         Fold both "((X & C) ^ C) eq/ne 0" and "((X ^ C) & C) eq/ne 0"
4637         as (X & C) ne/eq 0.
4638
4639 2006-02-26  Roger Sayle  <roger@eyesopen.com>
4640
4641         PR middle-end/19983
4642         * real.c (real_nan): Allow both 0x and 0X as hexadecimal prefixes.
4643
4644 2006-02-26  Zdenek Dvorak <dvorakz@suse.cz>
4645
4646         * opts.c (decode_options): Do not handle flag_strength_reduce.
4647         (common_handle_option): Handle OPT_floop_optimize, OPT_frerun_loop_opt
4648         and OPT_fstrength_reduce.
4649         * tree-ssa-loop.c (tree_ssa_loop_prefetch): Only test
4650         flag_prefetch_loop_arrays for being nonzero.
4651         * common.opt (floop-optimize, frerun-loop-opt): Resurrected as
4652         no-ops.
4653         (fprefetch-loop-arrays-rtl): Removed.
4654         (flag_prefetch_loop_arrays): Do not specify the value.
4655
4656         * doc/passes.texi: Update documentation of loop optimizer
4657         passes.
4658         * doc/invoke.texi (-fstrength-reduce, -fprefetch-loop-arrays-rtl,
4659         -frerun-loop-opt): Remove.
4660
4661 2006-02-26  Richard Guenther  <rguenther@suse.de>
4662
4663         PR tree-optimization/26421
4664         * tree-ssa-alias.c (find_used_portions): Don't treat parameters
4665         in function calls that are ADDR_EXPRs as using the whole structure.
4666
4667 2006-02-26  Steven Bosscher  <stevenb.gcc@gmail.com>
4668
4669         * common.opt (-floop-optimize, -frerun-loop-opt): Remove.
4670         * tree-pass.h (pass_loop_optimize): Remove.
4671         * passes.c (pass_loop_optimize): Never run it.
4672         * toplev.c (backend_init): Don't call init_loop.
4673         * opts.c (flag_loop_optimize_set): Remove.
4674         (decode_options): Never set flag_loop_optimize or flag_rerun_loop_opt.
4675         (common_handle_option) <OPT_floop_optimize>: Remove.  Don't disable
4676         the old RTL loop optimizer when profiling enabled.
4677         * predict.c (tree_estimate_probability): Always strip builtin_expect.
4678         * cfgcleanup.c (try_forward_edges): Don't avoid killing loop
4679         pre-headers for the sake of the old RTL loop optimizer.
4680         * Makefile.in: Remove all references to loop.o.
4681
4682         * doc/invoke.texi: Remove all references to -floop-optimize
4683         and -frerun-loop-opt.
4684
4685 2006-02-26  Zack Weinberg  <zackw@panix.com>
4686
4687         * doc/md.texi (Machine Constraints): Refer to all files with paths
4688         relative to gcc directory (i.e. config/CPU/file).  Add missing
4689         @table @code ... @end table to M32C subsection.
4690
4691 2006-02-26  Roger Sayle  <roger@eyesopen.com>
4692
4693         * fold-const.c (fold_binary) <BIT_XOR_EXPR>: Fold (X & 1) ^ 1 as
4694         (X & 1) == 0.
4695         <BIT_AND_EXPR>: Fold (X ^ 1) & 1 and ~X & 1 as (X & 1) == 0.
4696
4697 2006-02-26  Roger Sayle  <roger@eyesopen.com>
4698             James A. Morrison  <phython@gcc.gnu.org>
4699
4700         PR middle-end/21137
4701         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold ((X>>C1)&C2) eq/ne 0,
4702         when C2 is a power of two, as either (X&(C2<<C1)) eq/ne 0 if the
4703         new constant C2<<C1, or as (X<0) or (X,false) depending upon the
4704         signedness of the shift operation.
4705
4706 2006-02-26  Dorit Nuzman  <dorit@il.ibm.com>
4707
4708         PR tree-optimization/26359
4709         * tree-ssa-alias.c (new_type_alias): Set fields for new tag.
4710
4711 2006-02-25  Roger Sayle  <roger@eyesopen.com>
4712
4713         * simplify-rtx.c (simplify_relational_operation_1):  Simplify
4714         (X^Y) == 0 as X == Y and (X^Y) != 0 as X != Y.  Simplify (X^Y) == Y
4715         as X == 0, and some symmetry related transformations.
4716         Simplify (X^C1) == C2 as X == (C1^C2).  Split long comment line.
4717
4718 2006-02-25  Roger Sayle  <roger@eyesopen.com>
4719
4720         PR middle-end/23673
4721         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold (X^Y) == 0 as X == Y
4722         and (X^Y) != 0 as X != Y.  Fold (X^Y) == Y as X == 0, and some
4723         symmetry related transformations.  Fold (X^C1) == C2 as
4724         X == (C1^C2).
4725
4726 2006-02-25  Juergen Weigert  <jw@suse.de>
4727         Richard Guenther  <rguenther@suse.de>
4728
4729         * scan-decls.c (scan_decls): Don't fetch new statement after CPP_EOF.
4730
4731 2006-02-24  Adam Nemet  <anemet@caviumnetworks.com>
4732
4733         * combine.c (gen_lowpart_or_truncate): Call
4734         simplify_gen_unary(TRUNCATE, ...) instead of gen_rtx_TRUNCATE.
4735
4736 2006-02-24  Diego Novillo  <dnovillo@redhat.com>
4737
4738         * doc/invoke.texi: Move -fopenmp description to "Options for
4739         Code Generation".
4740         Remove reference to -lgomp.
4741
4742 2006-02-24  David Edelsohn  <edelsohn@gnu.org>
4743
4744         * doc/install.texi: Require GNU tar version 1.14.
4745
4746 2006-02-24  Geoffrey Keating  <geoffk@apple.com>
4747
4748         * doc/tm.texi (Run-time Target): Document C_COMMON_OVERRIDE_OPTIONS.
4749         * doc/invoke.texi (C++ Dialect Options): Document
4750         -fno-use-cxa-get-exception-ptr.
4751         * configure.ac: Define DEFAULT_USE_CXA_ATEXIT to 2 not 1.
4752         * configure: Regenerate.
4753         * c.opt (fuse-cxa-get-exception-ptr): New.
4754         * c-opts.c (c_common_handle_option): Handle
4755         OPT_fuse_cxa_get_exception_ptr.
4756         * c-common.c (flag_use_cxa_atexit): Update documentation.
4757         (flag_use_cxa_get_exception_ptr): New.
4758         * c-common.h (flag_use_cxa_get_exception_ptr): New.
4759         * config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): Improve
4760         documentation.
4761         (C_COMMON_OVERRIDE_OPTIONS): New.
4762
4763 2006-02-24  Roger Sayle  <roger@eyesopen.com>
4764
4765         PR middle-end/24952
4766         * combine.c (try_combine): Explicitly check whether GET_CODE is
4767         a SET or a CLOBBER, instead on checking that it isn't a USE.
4768
4769 2006-02-24  Roger Sayle  <roger@eyesopen.com>
4770
4771         * fold-const.c (fold_comparison): New subroutine of fold_binary
4772         containing transformations common to both the equality and
4773         ordering relational operators, factored out of fold_binary.
4774         (fold_binary): Separate out the equality operators (EQ_EXPR
4775         and NE_EXPR) from the ordering operators (LT_EXPR, GT_EXPR,
4776         LE_EXPR and GE_EXPR), calling fold_comparison to perform the
4777         transformations common to both.
4778         (fold_div_compare): Fix latent bugs in the previously unreachable
4779         LT_EXPR and GE_EXPR cases.
4780
4781 2006-02-24  David Edelsohn  <edelsohn@gnu.org>
4782
4783         * config/rs6000/rs6000.c (rs6000_init_builtins): Change
4784         decl libname for clog to __clog on AIX.
4785
4786         * config/rs6000/xcoff.h (MAX_OFILE_ALIGNMENT): Define.
4787
4788 2006-02-24  Alan Modra  <amodra@bigpond.net.au>
4789
4790         PR target/26453
4791         * config/rs6000/rs6000.c (rs6000_output_function_epilogue): Don't
4792         output traceback table for thunks.  Localise rs6000_stack_info call.
4793
4794 2006-02-23  Roger Sayle  <roger@eyesopen.com>
4795             Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
4796
4797         * gthr-posix.h (__gthrw): Fix typo in comment.
4798
4799 2006-02-23  Geoffrey Keating  <geoffk@apple.com>
4800
4801         * doc/cpp.texi (Character sets): Document that we do support
4802         input files to be in any character set.
4803
4804 2006-02-23  Jeff Law  <law@redhat.com>
4805
4806         * tree.h (PHI_ARG_NONZERO): Remove.
4807         * tree-phinodes.c (add_phi_arg): No longer initialize PHI_ARG_NONZERO.
4808         (remove_phi_arg_num): No longer copy PHI_ARG_NONZERO from the old
4809         node to the new node.
4810
4811         PR tree-optimization/26425
4812         * tree-vrp.c (vrp_visit_assignment): If the LHS's type has a NULL
4813         min/max, then assume its varying.
4814
4815 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
4816
4817         PR rtl-optimization/26316
4818         * rtlanal.c (enum may_trap_p_flags): New.
4819         (may_trap_p_1): Take flags instead of unaligned_mems argument.  Ignore
4820         MEM_NOTRAP_P if flags & MTP_AFTER_MOVE.
4821         (may_trap_p, may_trap_or_fault_p): Pass flags to may_trap_p_1.
4822         (may_trap_after_code_motion_p): New function.
4823         * loop-invariant.c (find_identical_invariants): Fix dump formating.
4824         (find_invariant_insn): Use may_trap_after_code_motion_p.
4825         * rtl.h (may_trap_after_code_motion_p): Declare.
4826
4827 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
4828
4829         * emit-rtl.c (immed_double_const): Cleanup.
4830
4831 2006-02-23  Daniel Berlin  <dberlin@dberlin.org>
4832
4833         Fix PR tree-optimization/26376
4834         * tree-ssa-structalias.c (find_func_aliases):  Use get_id_for_tree,
4835         remove assert.
4836
4837 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
4838
4839         PR middle-end/26412
4840         * gimplify.c (omp_add_variable): Guard variable size decl test with
4841         DECL_SIZE (decl) check.
4842
4843 2006-02-23  Richard Guenther  <rguenther@suse.de>
4844
4845         PR middle-end/26439
4846         * tree-ssa-structalias.c (find_func_aliases): Handle complex types
4847         like aggregate types.
4848
4849 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
4850
4851         * configure.ac: Add --with{,out}-long-double-128 configure option.
4852         (TARGET_DEFAULT_LONG_DOUBLE_128): New test.
4853         * configure: Rebuilt.
4854         * config.in: Rebuilt.
4855         * doc/install.texi (Options specification): Document
4856         --with-long-double-128.
4857
4858         * config/rs6000/linux.h [TARGET_DEFAULT_LONG_DOUBLE_128]
4859         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
4860         * config/rs6000/linux64.h [TARGET_DEFAULT_LONG_DOUBLE_128]
4861         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
4862
4863 2006-02-23  Aldy Hernandez  <aldyh@redhat.com>
4864
4865         * config/s390/s390.c (override_options): Handle
4866         TARGET_DEFAULT_LONG_DOUBLE_128.
4867
4868         * config/alpha/alpha.c (override_options): Handle
4869         TARGET_DEFAULT_LONG_DOUBLE_128.
4870
4871         * config/sparc/sparc.c (sparc_override_options): Handle
4872         TARGET_DEFAULT_LONG_DOUBLE_128.
4873
4874 2006-02-22  Daniel Jacobowitz  <dan@codesourcery.com>
4875
4876         * Makefile.in (stmp-fixinc): Use real-$(INSTALL_HEADERS_DIR).
4877         (real-install-headers-tar, real-install-headers-cpio)
4878         (real-install-headers-cp): New targets.
4879
4880 2006-02-22  Richard Sandiford  <richard@codesourcery.com>
4881
4882         * tree.h (variable_section): Delete.
4883         * varasm.c (variable_section): Delete.
4884
4885 2006-02-22  Paolo Bonzini  <bonzini@gnu.org>
4886
4887         * install.texi: Add notes on install.texi2html.
4888         (Building in parallel): Do not use footnotes.
4889
4890 2006-02-21  Aldy Hernandez  <aldyh@redhat.com>
4891
4892         PR libgomp/26234
4893         * doc/install.texi (Configuration): Document --disable-libgomp.
4894
4895 2006-02-21  Geoffrey Keating  <geoffk@apple.com>
4896
4897         * config/i386/darwin.h (DWARF2_FRAME_REG_OUT): New.
4898
4899 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
4900
4901         * config/i386/sse.md (vec_extractv2df_1_sse): New.
4902         (vec_extractv2df_0_sse): New.
4903
4904 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
4905
4906         * defaults.h (CFA_FRAME_BASE_OFFSET): Define.
4907         * config/ia64/ia64.h (CFA_FRAME_BASE_OFFSET): Override.
4908         * doc/tm.texi (CFA_FRAME_BASE_OFFSET): Document.
4909         * dwarf2out.c (build_cfa_loc): New offset parameter.  Add it
4910         to the result of the expression.
4911         (def_cfa_1): Adjust.
4912         (frame_pointer_cfa_offset): Rename to...
4913         (frame_pointer_fb_offset): ... this.  Adjust all uses.
4914         (convert_cfa_to_loc_list): Rename to...
4915         (convert_cfa_to_fb_loc_list): ... this.  New offset parameter.
4916         Pass it on to build_cfa_loc.
4917         (compute_frame_pointer_to_cfa_displacement): Rename to...
4918         (compute_frame_pointer_to_fb_displacement): ... this.  New
4919         offset parameter.  Use it in computation.
4920         (gen_subprogram_die): Compute cfa_fb_offset with the new
4921         macro, and use it to compute the fb loc list and the
4922         displacement.
4923
4924 2006-02-21  Bernd Schmidt  <bernd.schmidt@analog.com>
4925
4926         * config/bfin/predicates.md (cc_operand): Delete predicate.  All uses
4927         replaced with register_operand.
4928         * config/bfin/bfin.c (bfin_register_move_cost): Moving CC to any
4929         non-DREG is expensive.
4930         * config/bfin/bfin.h (FIXED_REGISTERS): CC isn't fixed.
4931         * config/bfin/bfin.md (movbi): Fix constraints and template for moves
4932         involving memory.
4933
4934 2006-02-21  Joseph S. Myers  <joseph@codesourcery.com>
4935
4936         * doc/install.texi2html: Use set -e.
4937
4938 2006-02-21  Richard Sandiford  <richard@codesourcery.com>
4939
4940         * doc/tm.texi (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
4941         (ASM_OUTPUT_SHARED_LOCAL): Delete.
4942         * doc/invoke.texi (-fshared-data): Delete.
4943         * common.opt (fshared-data): Delete.
4944         * varasm.c (asm_emit_uninitialised): Remove flag_shared_data handling.
4945         (assemble_static_space): Remove #if 0 code.
4946         * system.h (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
4947         (ASM_OUTPUT_SHARED_LOCAL): Poison.
4948         * config/cris/cris.h: Remove FIXME.
4949
4950 2006-02-21  Paolo Bonzini  <bonzini@gnu.org>
4951
4952         * doc/sourcebuild.texi (Front End Directory): No more double-colon
4953         hooks.
4954
4955 2006-02-21  Jakub Jelinek  <jakub@redhat.com>
4956
4957         PR middle-end/26379
4958         * combine.c (simplify_shift_const_1): Disable nested shifts
4959         optimization for vector shifts.
4960
4961 2006-02-20  Roger Sayle  <roger@eyesopen.com>
4962
4963         PR tree-optimization/26361
4964         * tree-vrp.c (extract_range_from_unary_expr): Handle NEGATE_EXPR
4965         of unsigned integer types.
4966
4967 2006-02-20  Sebastian Pop  <pop@cri.ensmp.fr>
4968
4969         * tree-chrec.c (eq_evolutions_p): New.
4970         * tree-chrec.h (eq_evolutions_p): Declared.
4971         * tree-data-ref.c: Fix formatting.
4972         (datadep_stats, dependence_stats): New.
4973         (gcd): Moved...
4974         (print_direction_vector): New.
4975         (dump_data_dependence_relation): Use print_direction_vector.
4976         (object_analysis, create_data_ref): Handle COMPONENT_REF.
4977         (compute_subscript_distance): Static.
4978         (initialize_data_dependence_relation): Static.  Get the number
4979         of loops surrounding the references from the callers, and initialize
4980         DDR_SIZE_VECT to nb_loops.  Use both base_addr_differ_p and
4981         base_object_differ_p analyzers.
4982         (analyze_ziv_subscript, analyze_siv_subscript_cst_affine,
4983         compute_overlap_steps_for_affine_1_2,
4984         analyze_subscript_affine_affine): Count the classified dependences.
4985         Print a message when a test failed.
4986         (can_use_analyze_subscript_affine_affine): New.
4987         (analyze_siv_subscript): Compute the data dependences on symbolic
4988         scevs that verify can_use_analyze_subscript_affine_affine.
4989         (chrec_steps_divide_constant_p): Returns true, false, or unknown.
4990         (analyze_miv_subscript): Update use of chrec_steps_divide_constant_p.
4991         Handle symbolic scevs.
4992         (analyze_overlapping_iterations): Let symbolic affine scevs to be
4993         analyzed.
4994         (subscript_dependence_tester): Moved...
4995         (build_classic_dist_vector, build_classic_dir_vector): Don't use
4996         lambda_vector_clear on newly allocated vectors.  Get nb_loops from
4997         DDR_SIZE_VECT instead of getting it in parameter.
4998         (subscript_dependence_tester): ... here.  Take as a parameter
4999         loop_nest_depth.  Call build_classic_dist_vector and
5000         build_classic_dir_vector.
5001         (compute_affine_dependence): Update subscript_dependence_tester
5002         parameters.  Update datadep_stats counters.  Call
5003         compute_subscript_distance.
5004         (compute_self_dependence): Save the dist and dir vectors.  Call
5005         compute_subscript_distance.
5006         (ddr_p, DEF_VEC_P(ddr_p), DEF_VEC_ALLOC_P(ddr_p,heap)): Moved...
5007         (compute_all_dependences): Reorder parameters as they were before
5008         conversion to VEC.  Pass nb_loops and loop_nest_depth.  Don't call
5009         compute_subscript_distance.  Update the use of
5010         compute_affine_dependence and initialize_data_dependence_relation.
5011         (find_data_references_in_loop): Handle COMPONENT_REF.
5012         (compute_data_dependences_for_loop): Initialize dependence_stats.
5013         Don't call build_classic_dist_vector and build_classic_dir_vector.
5014         Update the parameters of initialize_data_dependence_relation and
5015         compute_all_dependences.  Print the statistics from datadep_stats.
5016         (analyze_all_data_dependences): Static.  Not used until the pass for
5017         checking the data dependences is contributed.
5018         * tree-data-ref.h (ddr_p, DEF_VEC_P(ddr_p),
5019         DEF_VEC_ALLOC_P(ddr_p,heap)): ... here.
5020         (initialize_data_dependence_relation, compute_affine_dependence,
5021         analyze_all_data_dependences, compute_subscript_distance): Removed.
5022         (print_direction_vector): New.
5023         * lambda.h (gcd): ... here.
5024         (lambda_vector_gcd): Moved here from gcd_vector.
5025         * lambda-code.c (gcd, gcd_vector): Removed.
5026         (lambda_compute_target_space): Use lambda_vector_gcd.  Fix formatting.
5027         * Makefile.in (tree-vect-patterns.o): Depends on TREE_DATA_REF_H.
5028
5029 2006-02-20  Diego Novillo  <dnovillo@redhat.com>
5030
5031         * ipa-type-escape.c: Tidy some comments and white space.
5032         * tree-ssa-operands.c: Likewise.
5033
5034 2006-02-20  Andrew Pinski  <pinskia@physics.uc.edu>
5035
5036         PR tree-opt/25879
5037         * tree-pretty-print.c (debug_tree_chain): Walk the chains.
5038         (dump_decl_name): Do not walk the decl tree chains.
5039         * tree-pass.h (TDF_CHAIN): Remove.
5040
5041 2006-02-20  Rafael Ávila de Espíndola  <rafael.espindola@gmail.com>
5042
5043         * Makefile.in (C): Remove
5044         (PROTO): Remove
5045         (.PHONY): Remove C and PROTO
5046
5047 2006-02-20  Roger Sayle  <roger@eyesopen.com>
5048
5049         PR middle-end/26236
5050         * doc/c-tree.texi (INTEGER_TYPE): Remove reference to the now
5051         deprecated CHAR_TYPE tree code.
5052
5053 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
5054
5055         * configure.ac (target_list): Add install-info, dvi, html.
5056         * configure: Regenerate.
5057
5058         * ada/Make-lang.in, cp/Make-lang.in, fortran/Make-lang.in,
5059         java/Make-lang.in, objc/Make-lang.in, objcp/Make-lang.in,
5060         treelang/Make-lang.in: Do not use double-colon rules.
5061
5062 2006-02-20  Daniel Berlin  <dberlin@dberlin.org>
5063
5064         * tree.h (struct tree_memory_tag): Add is_used_alone member.
5065         (TMT_USED_ALONE): New macro.
5066         * tree-pass.h (PROP_tmt_usage): New property.
5067         (TODO_update_tmt_usage): New todo.
5068         * tree-ssa-alias.c (updating_used_alone): New variable.
5069         (recalculate_used_alone): New function.
5070         (compute_may_aliases): Set updating_used_alone, call
5071         recalculate_used_alone.
5072         * tree-sra.c (pass_sra): Note that this pass destroys
5073         PROP_tmt_usage, and add TODO_update_tmt_usage.
5074         * tree-ssa-forwprop.c (pass_forwprop): Ditto.
5075         * tree-flow.h (updating_used_alone): Prototype.
5076         (recalculate_used_alone): Ditto.
5077         * passes.c (execute_todo): Add code to set updating_used_alone,
5078         and call recalculate.
5079         * tree-ssa-operands.c (add_virtual_operand): Only append bare def
5080         for clobber if used alone, and add assert to verify used_alone
5081         status.
5082
5083 2006-02-20  Angel Nunez Mencias  <anunez@de.ibm.com>
5084
5085         * config/s390/s390.c (legitimize_pic_address): Assertions checking
5086         for non tls symbols added.
5087         (legitimize_address): Do nothing for PLUS expressions if one of the
5088         addends is a tls symbol reference.
5089
5090 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
5091
5092         PR bootstrap/25476
5093
5094         * Makefile.in (LDFLAGS): Define from autoconf substitution.
5095
5096         * Makefile.in (BOOTSTRAPPING): New.
5097         (quickstrap): New definition if BOOTSTRAPPING=yes.
5098
5099         * Makefile.in (CONFIG_LANGUAGES): Substitute all_selected_languages.
5100         * configure.ac: Substitute all_selected_languages with the languages
5101         that were configured.  For all the other variables except
5102         lang_specs_files, include all the languages in the tree.
5103         * configure: Regenerate.
5104
5105         * Makefile.in (stmp-fixinc): Copy includes from the prev-gcc directory,
5106         if there is one.  Run the commands to run fixincludes in the same
5107         subshell.
5108
5109         * doc/makefile.texi: Document new makefile targets from toplevel bootstrap.
5110         * doc/install.texi: Document exact conventions for searching target tools.
5111         Document --with-build-time-tools.  Document toplevel bootstrap.  Document
5112         something more about building an Ada cross-compiler.  Don't list GNU Make
5113         requirements which affect all platforms.
5114
5115 2006-02-19  Roger Sayle  <roger@eyesopen.com>
5116
5117         PR middle-end/19543
5118         * varasm.c (compare_constant) <INTEGER_CST>: Integer constants are
5119         only equivalent if the have both the same mode and precision.
5120
5121 2006-02-20  Ben Elliston  <bje@au.ibm.com>
5122
5123         * doc/tree-ssa.texi (Interfaces): Describe low vs. high GIMPLE.
5124
5125 2006-02-19  Roger Sayle  <roger@eyesopen.com>
5126             Steven Bosscher  <stevenb.gcc@gmail.com>
5127
5128         * gcse.c (want_to_gcse_p): On STACK_REGS targets, look through
5129         constant pool references to identify stack mode constants.
5130         * rtlanal.c (constant_pool_constant_p): New predicate to check
5131         whether operand is a floating point constant in the pool.
5132         * rtl.h (constant_pool_constant_p): Prototype here.
5133         * loop.c (scan_loop): Avoid hoisting constants from the constant
5134         pool on STACK_REGS targets.
5135         (load_mems): Likewise.
5136         * loop-invariant.c (get_inv_cost): Make hoisting constant pool
5137         loads into x87 registers expensive in terms of register pressure.
5138
5139 2006-02-19  Roger Sayle  <roger@eyesopen.com>
5140
5141         * gthr-posix.h: On Tru64, map __gthr_foo as a weak reference to
5142         __foo and not foo when _PTHREAD_USE_MANGLED_NAMES_ is defined.
5143
5144 2006-02-19  David Edelsohn  <edelsohn@gnu.org>
5145
5146         * config/rs6000/xcoff.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
5147         * config/rs6000/rs6000.c (rs6000_xcoff_asm_output_anchor): Define.
5148
5149 2006-02-19  Daniel Berlin  <dberlin@dberlin.org>
5150
5151         * doc/invoke.texi: Document -fipa-pta.
5152         * common.opt: Add ipa-pta option.
5153         * tree-ssa-structalias.c (DONT_PROPAGATE_WITH_ANYTHING): Removed.
5154         (do_sd_constraint): Enable DONT_PROPAGATE_WITH_ANYTHING code.
5155         (do_ds_constraint): Ditto.
5156         (get_constraint_for): Only add to referenced_vars if
5157         referenced_vars exists.
5158         (insert_into_field_list): Rewrite to do this unsorted.
5159         (insert_into_field_list_sorted): Rename old insert_into_field_list
5160         to this.
5161         (create_function_info_for): Use insert_into_field_list_sorted.
5162         (create_variable_info_for): Rewrite so it uses unsorted version,
5163         since the field list is sorted.
5164         (intra_create_variable_infos): Only add to referenced_vars if
5165         referenced_vars exists.
5166         (ipa_pta_execute): Init heapvars, and delete when done.
5167         * passes.c (init_optimization_passes): Add call to pass_ipa_pta.
5168
5169 2006-02-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
5170
5171         * doc/install.texi: Add missing `@samp'.
5172
5173 2006-02-18  Andrew Pinski <pinskia@physics.uc.edu>
5174
5175         * config/rs6000/darwin.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P):
5176         Use the arguments.
5177
5178 2006-02-18  Mark Wielaard  <mark@klomp.org>
5179
5180         * doc/contrib.texi (Contributors): Add classpath/libgcj hackers
5181         who added new 4.1 features, bug fixes and integration support.
5182
5183 2006-02-18  David Edelsohn  <edelsohn@gnu.org>
5184
5185         PR target/26350
5186         * config/rs6000/rs6000.md (extenddftf2): Force 0.0 to validized
5187         MEM for ABI_V4 pic.
5188
5189 2006-02-18  Richard Sandiford  <richard@codesourcery.com>
5190
5191         * cselib.c (cselib_init): Change RTX_SIZE to RTX_CODE_SIZE.
5192         * emit-rtl.c (copy_rtx_if_shared_1): Use shallow_copy_rtx.
5193         (copy_insn_1): Likewise.  Don't copy each field individually.
5194         Reindent.
5195         * read-rtl.c (apply_macro_to_rtx): Use RTX_CODE_SIZE instead
5196         of RTX_SIZE.
5197         * reload1.c (eliminate_regs): Use shallow_copy_rtx.
5198         * rtl.c (rtx_size): Rename variable to...
5199         (rtx_code_size): ...this.
5200         (rtx_size): New function.
5201         (rtx_alloc_stat): Use RTX_CODE_SIZE instead of RTX_SIZE.
5202         (copy_rtx): Use shallow_copy_rtx.  Don't copy each field individually.
5203         Reindent.
5204         (shallow_copy_rtx_stat): Use rtx_size instead of RTX_SIZE.
5205         * rtl.h (rtx_code_size): New variable.
5206         (rtx_size): Change from a variable to a function.
5207         (RTX_SIZE): Rename to...
5208         (RTX_CODE_SIZE): ...this.
5209
5210         PR target/9703
5211         PR tree-optimization/17106
5212         * doc/tm.texi (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Document.
5213         (Anchored Addresses): New section.
5214         * doc/invoke.texi (-fsection-anchors): Document.
5215         * doc/rtl.texi (SYMBOL_REF_IN_BLOCK_P, SYMBOL_FLAG_IN_BLOCK): Likewise.
5216         (SYMBOL_REF_ANCHOR_P, SYMBOL_FLAG_ANCHOR): Likewise.
5217         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): Likewise.
5218         * hooks.c (hook_bool_mode_rtx_false): New function.
5219         * hooks.h (hook_bool_mode_rtx_false): Declare.
5220         * gengtype.c (create_optional_field): New function.
5221         (adjust_field_rtx_def): Add the "block_sym" field for SYMBOL_REFs when
5222         SYMBOL_REF_IN_BLOCK_P is true.
5223         * target.h (output_anchor, use_blocks_for_constant_p): New hooks.
5224         (min_anchor_offset, max_anchor_offset): Likewise.
5225         (use_anchors_for_symbol_p): New hook.
5226         * toplev.c (compile_file): Call output_object_blocks.
5227         (target_supports_section_anchors_p): New function.
5228         (process_options): Check that -fsection-anchors is only used on
5229         targets that support it and when -funit-at-a-time is in effect.
5230         * tree-ssa-loop-ivopts.c (prepare_decl_rtl): Only create DECL_RTL
5231         if the decl doesn't have one.
5232         * dwarf2out.c: Remove instantiations of VEC(rtx,gc).
5233         * expr.c (emit_move_multi_word, emit_move_insn): Pass the result
5234         of force_const_mem through use_anchored_address.
5235         (expand_expr_constant): New function.
5236         (expand_expr_addr_expr_1): Call it.  Use the same modifier when
5237         calling expand_expr for INDIRECT_REF.
5238         (expand_expr_real_1): Pass DECL_RTL through use_anchored_address
5239         for all modifiers except EXPAND_INITIALIZER.  Use expand_expr_constant.
5240         * expr.h (use_anchored_address): Declare.
5241         * loop-unroll.c: Don't declare rtx vectors here.
5242         * explow.c: Include output.h.
5243         (validize_mem): Call use_anchored_address.
5244         (use_anchored_address): New function.
5245         * common.opt (-fsection-anchors): New switch.
5246         * varasm.c (object_block_htab, anchor_labelno): New variables.
5247         (hash_section, object_block_entry_eq, object_block_entry_hash)
5248         (use_object_blocks_p, get_block_for_section, create_block_symbol)
5249         (use_blocks_for_decl_p, change_symbol_section): New functions.
5250         (get_variable_section): New function, split out from assemble_variable.
5251         (make_decl_rtl): Create a block symbol if use_object_blocks_p and
5252         use_blocks_for_decl_p say so.  Use change_symbol_section if the
5253         symbol has already been created.
5254         (assemble_variable_contents): New function, split out from...
5255         (assemble_variable): ...here.  Don't output any code for
5256         block symbols; just pass them to place_block_symbol.
5257         Use get_variable_section and assemble_variable_contents.
5258         (get_constant_alignment, get_constant_section, get_constant_size): New
5259         functions, split from output_constant_def_contents.
5260         (build_constant_desc): Create a block symbol if use_object_blocks_p
5261         says so.  Or into SYMBOL_REF_FLAGS.
5262         (assemble_constant_contents): New function, split from...
5263         (output_constant_def_contents): ...here.  Don't output any code
5264         for block symbols; just pass them to place_section_symbol.
5265         Use get_constant_section and get_constant_alignment.
5266         (force_const_mem): Create a block symbol if use_object_blocks_p and
5267         use_blocks_for_constant_p say so.  Or into SYMBOL_REF_FLAGS.
5268         (output_constant_pool_1): Add an explicit alignment argument.
5269         Don't switch sections here.
5270         (output_constant_pool): Adjust call to output_constant_pool_1.
5271         Switch sections here instead.  Don't output anything for block symbols;
5272         just pass them to place_block_symbol.
5273         (init_varasm_once): Initialize object_block_htab.
5274         (default_encode_section_info): Keep the old SYMBOL_FLAG_IN_BLOCK.
5275         (default_asm_output_anchor, default_use_aenchors_for_symbol_p)
5276         (place_block_symbol, get_section_anchor, output_object_block)
5277         (output_object_block_htab, output_object_blocks): New functions.
5278         * target-def.h (TARGET_ASM_OUTPUT_ANCHOR): New macro.
5279         (TARGET_ASM_OUT): Include it.
5280         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): New macro.
5281         (TARGET_MIN_ANCHOR_OFFSET, TARGET_MAX_ANCHOR_OFFSET): New macros.
5282         (TARGET_USE_ANCHORS_FOR_SYMBOL_P): New macro.
5283         (TARGET_INITIALIZER): Include them.
5284         * rtl.c (rtl_check_failed_block_symbol): New function.
5285         * rtl.h: Include vec.h.  Declare heap and gc rtx vectors.
5286         (block_symbol, object_block): New structures.
5287         (rtx_def): Add a block_symbol field to the union.
5288         (BLOCK_SYMBOL_CHECK): New macro.
5289         (rtl_check_failed_block_symbol): Declare.
5290         (SYMBOL_FLAG_IN_BLOCK, SYMBOL_FLAG_ANCHOR): New SYMBOL_REF flags.
5291         (SYMBOL_REF_IN_BLOCK_P, SYMBOL_REF_ANCHOR_P): New predicates.
5292         (SYMBOL_FLAG_MACH_DEP_SHIFT): Bump by 2.
5293         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): New accessors.
5294         * output.h (output_section_symbols): Declare.
5295         (object_block): Name structure.
5296         (place_section_symbol, get_section_anchor, default_asm_output_anchor)
5297         (default_use_anchors_for_symbol_p): Declare.
5298         * Makefile.in (RTL_BASE_H): Add vec.h.
5299         (explow.o): Depend on output.h.
5300         * config/rs6000/rs6000.c (TARGET_MIN_ANCHOR_OFFSET): Override default.
5301         (TARGET_MAX_ANCHOR_OFFSET): Likewise.
5302         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Likewise.
5303         (rs6000_use_blocks_for_constant_p): New function.
5304
5305 2006-02-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
5306
5307         * doc/install.texi (hppa*-hp-hpux*): Update for 4.1.0.
5308
5309 2006-02-18  Andrew Pinski  <pinskia@physics.uc.edu>
5310
5311         PR tree-opt/25680
5312         * tree-ssa-ccp.c (ccp_fold): Handle store CCP of REALPART_EXPR and
5313         IMAGPART_EXPR.
5314
5315 2006-02-18  Diego Novillo  <dnovillo@redhat.com>
5316
5317         * tree-flow.h (struct var_ann_d): Rename field is_alias_tag to
5318         is_aliased.
5319         Update all users.
5320
5321 2006-02-18  Jakub Jelinek  <jakub@redhat.com>
5322
5323         PR middle-end/26334
5324         * stmt.c (decl_overlaps_hard_reg_set_p): Use DECL_HARD_REGISTER
5325         instead of DECL_REGISTER.
5326
5327 2006-02-18  Olivier Hainque  <hainque@adacore.com>
5328
5329         PR ada/13408
5330         * pa.h (WIDEST_HARDWARE_FP_SIZE): Define.
5331
5332 2006-02-18  Joseph S. Myers  <joseph@codesourcery.com>
5333
5334         PR target/24837
5335         * config.gcc: Define UCLIBC_DEFAULT to 0 or 1.
5336         * opth-gen.awk: Handle Var and InverseMask together.
5337         * config/linux.opt (muclibc, mglibc): Use Var(linux_uclibc).
5338         * config/linux.h: Use #if not #ifdef for testing UCLIBC_DEFAULT.
5339         (TARGET_C99_FUNCTIONS): Test OPTION_GLIBC not TARGET_GLIBC.
5340         (CHOOSE_DYNAMIC_LINKER): Give an error for -mglibc and -muclibc
5341         used together.
5342         (UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
5343         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
5344         * config/alpha/linux-elf.h (GLIBC_DYNAMIC_LINKER,
5345         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
5346         LINUX_DYNAMIC_LINKER): Define.
5347         (ELF_DYNAMIC_LINKER): Define to LINUX_DYNAMIC_LINKER.
5348         * config/alpha/linux.h (TARGET_C99_FUNCTIONS): Define to
5349         TARGET_GLIBC.
5350         * config/cris/linux.h (GLIBC_DYNAMIC_LINKER): Define.
5351         (CRIS_LINK_SUBTARGET_SPEC): Pass a -dynamic-linker option.
5352         * config/frv/linux.h (GLIBC_DYNAMIC_LINKER): Define.
5353         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
5354         (TARGET_C99_FUNCTIONS): Don't define.
5355         * config/i386/linux.h (DYNAMIC_LINKER): Rename to
5356         GLIBC_DYNAMIC_LINKER.
5357         (SUBTARGET_EXTRA_SPECS): Use LINUX_DYNAMIC_LINKER.
5358         * config/i386/linux64.h (GLIBC_DYNAMIC_LINKER32,
5359         GLIBC_DYNAMIC_LINKER64): Define.
5360         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
5361         LINUX_DYNAMIC_LINKER64.
5362         * config/ia64/linux.h (GLIBC_DYNAMIC_LINKER): Define.
5363         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
5364         * config/m32r/linux.h (GLIBC_DYNAMIC_LINKE): Define.
5365         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
5366         * config/m68k/linux.h (GLIBC_DYNAMIC_LINKER): Define.
5367         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
5368         * config/mips/linux64.h (GLIBC_DYNAMIC_LINKER32,
5369         GLIBC_DYNAMIC_LINKER64, GLIBC_DYNAMIC_LINKERN32,
5370         UCLIBC_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKERN32): Define.
5371         (LINK_SPEC): Use LINUX_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKER64
5372         and LINUX_DYNAMIC_LINKER32.
5373         * config/mn10300/linux.h (GLIBC_DYNAMIC_LINKER): Define.
5374         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
5375         * config/pa/pa-linux.h (GLIBC_DYNAMIC_LINKER): Define.
5376         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
5377         * config/rs6000/linux.h (TARGET_C99_FUNCTIONS): Define to
5378         TARGET_GLIBC.
5379         * config/rs6000/linux64.h (TARGET_C99_FUNCTIONS): Likewise.
5380         (GLIBC_DYNAMIC_LINKER32, GLIBC_DYNAMIC_LINKER64,
5381         UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
5382         CHOOSE_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
5383         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
5384         (LINK_OS_LINUX_SPEC32): Use LINUX_DYNAMIC_LINKER32.
5385         (LINK_OS_LINUX_SPEC64): Use LINUX_DYNAMIC_LINKER64.
5386         * config/rs6000/sysv4.h (GLIBC_DYNAMIC_LINKER,
5387         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
5388         LINUX_DYNAMIC_LINKER): Define.
5389         (LINK_OS_LINUX_SPEC): Use LINUX_DYNAMIC_LINKE.
5390         * config/s390/linux.h (GLIBC_DYNAMIC_LINKER32,
5391         GLIBC_DYNAMIC_LINKER64): Define.
5392         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
5393         LINUX_DYNAMIC_LINKER64.
5394         * config/sh/linux.h (GLIBC_DYNAMIC_LINKER): Define.
5395         (SUBTARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
5396         * config/sparc/linux.h (GLIBC_DYNAMIC_LINKER,
5397         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
5398         LINUX_DYNAMIC_LINKER): Define.
5399         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
5400         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
5401         * config/sparc/linux64.h (GLIBC_DYNAMIC_LINKER32,
5402         GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER32,
5403         UCLIBC_DYNAMIC_LINKER64, CHOOSE_DYNAMIC_LINKER,
5404         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
5405         (LINK_ARCH32_SPEC): Use LINUX_DYNAMIC_LINKER32.
5406         (LINK_ARCH64_SPEC, LINK_SPEC): Use LINUX_DYNAMIC_LINKER64.
5407         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
5408         * config/xtensa/linux.h (GLIBC_DYNAMIC_LINKER): Define.
5409         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
5410         * doc/invoke.texi (-muclibc): Remove caveat about supported
5411         targets.
5412
5413 2006-02-17  Grigory Zagorodnev <grigory_zagorodnev@linux.intel.com>
5414
5415         * doc/cpp.texi (__TIMESTAMP__): Document.
5416
5417 2006-02-17  Roger Sayle  <roger@eyesopen.com>
5418
5419         PR middle-end/25600
5420         * fold-const.c (fold_binary): Fold (X >> C) != 0 into X < 0 when
5421         C is one less than the width of X (and related transformations).
5422         * simplify-rtx.c (simplify_unary_operation_1): Transform
5423         (neg (lt x 0)) into either (ashiftrt X C) or (lshiftrt X C)
5424         depending on STORE_FLAG_VALUE, were C is one less then the
5425         width of X.
5426
5427 2006-02-17  Daniel Berlin  <dberlin@dberlin.org>
5428
5429         Fix PR tree-optimization/26341
5430         * tree-ssa-operands.c (add_virtual_operand): Remove assert
5431         about NAME_MEMORY_TAG's.
5432
5433 2006-02-17  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
5434
5435         PR target/26255
5436         * pa.md: Create separate HI and QI move patterns for 32-bit and 64-bit
5437         with hardware float support, and software float support.  Add fcpy
5438         alternative to hardware patterns.  Add alternatives to copy between
5439         general and floating-point registers to the 32-bit pattern.
5440         * pa.c (pa_secondary_reload): Don't abort if reload tries to find a
5441         secondary reload to load a QI or HI mode constant into a floating
5442         point register.
5443         * pa32-regs.h (VALID_FP_MODE_P): Allow QImode and HImode.
5444         * pa64-regs.h (VALID_FP_MODE_P): Likewise.
5445
5446 2006-02-17  Andrew Pinski  <pinskia@physics.uc.edu>
5447
5448         PR target/26272
5449         * config/rs6000/darwin.md (load_macho_picbase_si): Add
5450         pc to the pattern.
5451         (load_macho_picbase_di): Likewise.
5452
5453 2006-02-16  Jeff Law  <law@redhat.com>
5454
5455         * tree-vrp.c (set_value_range_to_nonnegative): New function.
5456         (vrp_expr_computes_nonnegative, ssa_name_nonnegative_p): Likewise.
5457         (ssa_name_nonzero_p): Likewise.
5458         (get_value_range): Return NULL if VRP is not running.
5459         (extract_range_from_expr): Fallback to tree_expr_XXX_p if
5460         VRP routines do not discover a range.
5461         (vrp_finalize): Clear VR_VALUE to indicate VRP is not running.
5462         * tree.h (ssa_name_nonzero_p, ssa_name_nonnegative_p): Prototype.
5463         * fold-const.c (tree_expr_nonzero_p): For SSA_NAMEs, query VRP.
5464         (tree_expr_nonnegative_p): Similarly.
5465         * tree-ssa-dom.c (nonzero_vars, nonzero_vars_stack): Remove.
5466         (restore_nonzero_vars_to_original_value): Remove.
5467         (unsafe_associative_fp_binop): Remove.
5468         (tree_ssa_dominator_optimize): Remove initialization and
5469         finalization of nonzero_vars and nonzero_vars_stack.
5470         (dom_opt_initialize_block): No longer push marker on
5471         nonzero_vars_stack.
5472         (dom_opt_finalize_block): No longer call
5473         restore_nonzero_vars_to_original_value.
5474         (record_equivalences_from_phis): No longer look for
5475         nonzero PHI arguments.
5476         (cprop_into_successor_phis): No longer propagate nonzero
5477         property into PHI arguments.  Lose unused argument.  Caller
5478         updated.
5479         (record_equivalences_from_stmt): No longer record nonzero
5480         values for SSA_NAMEs.
5481         (lookup_avail_expr): No longer use nonzero_vars.
5482
5483         * stor-layout.c (set_sizetype): Set TYPE_MAX_VALUE properly
5484         for sizetype when sizetype is unsigned.
5485
5486 2006-02-16  Denis Nagorny <denis_nagorny@linux.intel.com>
5487
5488         PR rtl-optimization/25603
5489         * reload.c (reg_inc_found_and_valid_p): New. Check REG_INC note.
5490         (regno_clobbered_p): Use it. Reusing SETS argument for REG_INC case.
5491         * reload1.c (choose_reload_regs): Added call of regno_clobbered_p
5492         with new meaning of SETS.
5493
5494 2006-02-16  Joseph S. Myers  <joseph@codesourcery.com>
5495
5496         PR target/20353
5497         PR target/24578
5498         PR target/24837
5499         * config/linux.opt: New file.
5500         * config/linux.h (CHOOSE_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER,
5501         LINUX_DYNAMIC_LINKER): Define.
5502         (TARGET_C99_FUNCTIONS): Define depending on TARGET_GLIBC.
5503         * config.gcc (*-*-linux*): Define extra_options.
5504         (*-*-*uclibc*): Define UCLIBC_DEFAULT.
5505         (arm*-*-linux-gnueabi): Change to arm*-*-linux-*eabi.
5506         * config/arm/linux-eabi.h (LINUX_TARGET_INTERPRETER): Change to
5507         GLIBC_DYNAMIC_LINKER.
5508         * config/arm/linux-elf.h (LINUX_TARGET_INTERPRETER): Likewise.
5509         (LINUX_TARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
5510         * config/mips/linux.h (GLIBC_DYNAMIC_LINKER): Define.
5511         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
5512         * doc/invoke.texi (GNU/Linux Options): New section.
5513
5514 2006-02-16  Eric Botcazou  <ebotcazou@libertysurf.fr>
5515
5516         * config/sparc/sparc.md (setjmp): Rewrite.
5517         (setjmp_32): Delete.
5518         (setjmp_64): Likewise.
5519
5520 2006-02-16  Daniel Berlin <dberlin@dberlin.org>
5521
5522         * tree-ssa-operands.c (access_can_touch_variable): Fix typo in
5523          previous change.
5524
5525 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
5526
5527         * loop-invariant.c (invariant_for_use, check_dependencies): Fail for
5528         read-write uses.
5529
5530 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
5531
5532         PR rtl-optimization/26296
5533         * Makefile.in (loop-invariant.c): Add except.h dependency.
5534         * loop-invariant.c: Include except.h.
5535         (find_invariant_insn): Ignore insns satisfying can_throw_internal.
5536
5537 2005-02-16  Paul Brook  <paul@codesourcery.com>
5538
5539         * reload1.c (emit_reload_insns): Invalidate dead input registers used
5540         for reloads.
5541
5542 2006-02-16  Bernd Schmidt  <bernd.schmidt@analog.com>
5543
5544         PR rtl-optimization/25636
5545         * local-alloc.c (update_equiv_regs): Lose a bogus rtx_equal_p test
5546         when deciding whether an insn is an initializing insn.
5547
5548 2006-02-15 Daniel Berlin  <dberlin@dberlin.org>
5549
5550         * tree.c (init_ttree): Add STRUCT_FIELD_TAG handling.
5551         (tree_code_size): Ditto.
5552         * tree.h (struct tree_memory_tag): Remove parent_var.
5553         (struct tree_struct_field_tag): New.
5554         (SFT_OFFSET): New.
5555         (SFT_SIZE): New.
5556         (union tree_node): Add sft member.
5557         * tree-ssa-alias.c (get_tmt_for): Don't handle TYPE_READONLY
5558         specially here.
5559         (create_sft): Add size and offset argument, set SFT_OFFSET and
5560         SFT_SIZE.
5561         (create_overlap_variables_for): Update for SFT_OFFSET/SFT_SIZE.
5562         * treestruct.def: Add TS_STRUCT_FIELD_TAG.
5563         * tree-flow-inline.h (get_subvar_at): Update for
5564         SFT_OFFSET/SFT_SIZE.
5565         (var_can_have_subvars): Ditto.
5566         (overlap_subvar): Ditto.
5567         * print-tree.c (print_node): Print out interesting things for
5568         SFT's.
5569         * tree-flow.h (struct subvar): Remove offset and size members.
5570         * tree-ssa-operands.c (get_expr_operands): Update for
5571         get_indirect_ref_operands changes.
5572         (get_indirect_ref_operands): Call add_virtual_operand instead of
5573         add_stmt_operand.  Only recurse on base var if requested.
5574         (access_can_touch_variable): New function.
5575         (add_stmt_operand): Split virtual operand handling into ...
5576         (add_virtual_operand): Here.  Add offset, size, and for_clobber
5577         arguments.  Prune alias sets.
5578         (add_call_clobber_ops): Call add_virtual_operand.
5579
5580 2006-02-15  Jakub Jelinek  <jakub@redhat.com>
5581
5582         PR middle-end/26300
5583         * combine.c (make_extraction): Bail out if ORIG_POS is negative.
5584
5585         * tree.h (struct tree_omp_clause): Use OMP_CLAUSE_CODE rather
5586         than TREE_CODE as index into omp_clause_num_ops array.
5587
5588 2006-02-15  Uttam Pawar  <uttamp@us.ibm.com>
5589
5590         PR rtl-optimization/26184
5591         * modulo-sched.c (generate_reg_moves): Free bitmap vector
5592         uses_of_defs.
5593         * modulo-sched.c (sms_schedule): Free g_arr pointer.
5594         * modulo-sched.c (sms_schedule_by_order): Free bitmap pointers
5595         must_precede, must_follow and tobe_scheduled.
5596
5597         PR other/26147
5598         * opts.c (common_handle_option): Free new_option pointer.
5599         * df-core.c (df_analyze): Free postorder pointer.
5600
5601 2006-02-15  Rafael Ávila de Espíndola <rafael.espindola@gmail.com>
5602
5603         * Makefile.in: Fix the examples about the use of stamps
5604
5605 2006-02-15  Michael Matz  <matz@suse.de>
5606
5607         PR middle-end/22275
5608
5609         * stor-layout.c (layout_decl): Zero-width bitfields aren't
5610         influenced by maximum_field_alignment or DECL_PACKED.
5611         (update_alignment_for_field): Ditto.
5612         (place_field): Ditto.
5613         * doc/extend.texi (<#pragma pack>, <Type Attributes>): Document
5614         this behaviour.
5615
5616 2006-02-15  Paolo Bonzini  <bonzini@gnu.org>
5617
5618         * cfg.c (dump_flow_info): Get dump flags as an additional parameter.
5619         (debug_flow_info): Pass it.
5620         * alias.c (rest_of_handle_cfg): Adjust calls to dump_flow_info.
5621         * bb-reorder.c (reorder_basic_blocks): Likewise.
5622         * cfgcleanup.c (rest_of_handle_jump2): Likewise.
5623         * cse.c (rest_of_handle_cse, rest_of_handle_cse2): Likewise.
5624         * flow.c (life_analysis, recompute_reg_usage): Likewise.
5625         * gcse.c (gcse_main, bypass_jumps): Likewise.
5626         * ifcvt.c (rest_of_handle_if_conversion): Likewise.
5627         * local-alloc.c (rest_of_handle_local_alloc): Likewise.
5628         * loop-init.c (rtl_loop_init, rtl_loop_done): Likewise.
5629         * profile.c (compute_branch_probabilities, branch_prob): Likewise.
5630         * rtl.h (dump_flow_info): Adjust prototype.
5631         * tracer.c (rest_of_handle_tracer, tracer): Likewise.
5632         * var-tracking.c (variable_tracking_main): Likewise.
5633         * passes.c (execute_todo): Obey TDF_BLOCKS for RTL.
5634         * tree-dump.c (enable_rtl_dump_file): Enable the details and blocks
5635         options.
5636
5637 2006-02-15  Marcin Dalecki <martin@dalecki.de>
5638
5639         * tree-ssa-dom.c (dom_thread_across_edge): fix tag expression
5640         construction.
5641
5642 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
5643
5644         PR tree-optimization/26209
5645         * tree-ssa-loop.c (pass_scev_cprop): Add TODO_cleanup_cfg.
5646         * tree-cfgcleanup.c (cleanup_control_flow): Remove dead
5647         eh edges.
5648         * tree-cfg.c (replace_uses_by): Do not alter cfg.
5649
5650 2006-02-14  Roger Sayle  <roger@eyesopen.com>
5651
5652         PR middle-end/23670
5653         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Optimize (X&Y)|Y into
5654         (X,Y) and the corresponding symmetry related transformations.
5655         (fold_binary) <BIT_AND_EXPR>: Likewise, optimize (X|Y)&Y into
5656         (X,Y) and its symmetry related transformations.
5657
5658 2006-02-14  Roger Sayle  <roger@eyesopen.com>
5659
5660         * dojump.c (do_compare_rtx_and_jump): Also handle multi-word GTU
5661         and GEU.
5662
5663 2006-02-14  Adam Nemet  <anemet@caviumnetworks.com>
5664
5665         * simplify-rtx.c (simplify_subreg): Combine SUBREG and TRUNCATE.
5666
5667 2006-02-14  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
5668
5669         PR bootstrap/26053
5670         * configure.ac (HAVE_COMDAT_GROUP): Don't assume non-GNU linkers
5671         support COMDAT group.
5672         * configure: Regenerate.
5673
5674 2006-02-14  Roger Sayle  <roger@eyesopen.com>
5675
5676         PR middle-end/26279
5677         PR middle-end/26280
5678         PR middle-end/26283
5679         * dojump.c (do_compare_rtx_and_jump): Handle multi-word LE.
5680
5681 2006-02-14  Daniel Berlin  <dberlin@dberlin.org>
5682
5683         Fix PR tree-optimization/26260
5684
5685         * doc/invoke.texi (max-fields-for-field-sensitive): Document
5686         param.
5687         * params.h (MAX_FIELDS_FOR_FIELD_SENSITIVE): New.
5688         * params.def (PARAM_MAX_FIELDS_FOR_FIELD_SENSITIVE): Ditto.
5689         * tree-ssa-structalias.c (create_variable_info_for): Use
5690         MAX_FIELDS_FOR_FIELD_SENSITIVE.
5691
5692 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
5693
5694         * doc/invoke.texi (-fprefetch-loop-arrays, -fprefetch-loop-arrays-rtl):
5695         Document.
5696         * tree-ssa-loop-niter.c (number_of_iterations_ne,
5697         number_of_iterations_lt, number_of_iterations_cond): Remember the shape
5698         of the ending condition.
5699         * tree-ssa-loop-manip.c: Include params.h.
5700         (build_if_stmt, can_unroll_loop_p, determine_exit_conditions,
5701         tree_unroll_loop): New functions.
5702         * tree-pass.h (pass_loop_prefetch): Declare.
5703         * loop.c (rest_of_handle_loop_optimize): Test for
5704         -fprefetch-loop-arrays-rtl.
5705         * tree-scalar-evolution.h (affine_iv): Moved to tree-flow.h.
5706         * timevar.def (TV_TREE_PREFETCH): New timevar.
5707         * tree-ssa-loop.c (tree_ssa_loop_prefetch, gate_tree_ssa_loop_prefetch,
5708         pass_loop_prefetch): New.
5709         * tree-cfgcleanup.c: Include tree-scalar-evolution.h.
5710         (cleanup_tree_cfg_loop): Call scev_reset.
5711         * common.opt (fprefetch-loop-arrays-rtl): Add.
5712         * tree-ssa-loop-prefetch.c: New file.
5713         * tree-outof-ssa.c (struct value_expr_d): Add expr_vars field.
5714         (new_temp_expr_table): Initialize expr_vars.
5715         (free_temp_expr_table): Cleanup expr_vars.
5716         (check_replaceable, find_replaceable_in_bb): Prevent accumulating
5717         expressions from being merged into one.
5718         * tree-flow.h (affine_iv): Moved from tree-scalar-evolution.h.
5719         (struct tree_niter_desc): Add control, bound and cmp fields.
5720         (tree_ssa_prefetch_arrays, can_unroll_loop_p, tree_unroll_loop):
5721         Declare.
5722         * Makefile.in (tree-ssa-loop-prefetch.o): Add.
5723         (tree-cfgcleanup.o): Add SCEV_H dependency.
5724         (tree-ssa-loop-manip.o): Add PARAMS_H dependency.
5725         * passes.c (init_optimization_passes): Add pass_loop_prefetch.
5726
5727 2006-02-14  Richard Guenther  <rguenther@suse.de>
5728
5729         PR tree-optimization/26258
5730         * tree-ssa-structalias.c (find_func_aliases): Handle aggregates
5731         in PHI argument processing.
5732
5733 2006-02-13  Adam Nemet  <anemet@caviumnetworks.com>
5734
5735         * simplify-rtx.c (simplify_unary_operation_1) <TRUNCATE>: Return
5736         new expression in the requested machine mode.
5737
5738 2006-02-13  Roger Sayle  <roger@eyesopen.com>
5739
5740         * optabs.c (expand_abs): Don't call do_jump_by_parts_greater_rtx
5741         directly, instead let do_compare_rtx_and_jump handle this for us.
5742         * expr.c (expand_expr_real_1): Likewise.
5743         * dojump.c (do_jump_by_parts_greater_rtx): Make static.  Move
5744         before do_jump_by_parts_greater.
5745         (do_jump_by_parts_greater): Move after do_jump_by_parts_greater_rtx.
5746         * expr.h (do_jump_by_parts_greater_rtx): Delete prototype.
5747
5748 2006-02-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
5749
5750         * pa/quadlib.c: Use defines instead of enum qfcmp_magic.
5751
5752 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
5753
5754         PR rtl-optimization/26235
5755         * loop-invariant.c (hash_invariant_expr_1): Handle 'i' and 'n' formats.
5756         (invariant_expr_equal_p): Handle 'i' and 'n' formats.  Fail on unknown
5757         format.
5758
5759 2006-02-13  Jeff Law  <law@redhat.com>
5760
5761         * tree-vrp.c (extract_range_from_binary_expr): Remove handling of
5762         TRUTH_XOR_EPR.
5763
5764 2006-02-13  Jakub Jelinek  <jakub@redhat.com>
5765
5766         PR middle-end/26092
5767         * gimplify.c (gimplify_call_expr): Don't call get_callee_fndecl
5768         twice if decl is a builtin.  When trying again, call get_callee_fndecl
5769         first to verify it is still a builtin.
5770
5771 2006-02-13  Geoffrey Keating  <geoffk@apple.com>
5772
5773         * dwarf2out.c (base_type_die): Don't add AT_name here.
5774         (subrange_type_die): Don't add AT_name here.
5775         (modified_type_die): Rearrange code flow.  Do add AT_name here.
5776
5777 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
5778
5779         PR rtl-optimization/26247
5780         PR rtl-optimization/26248
5781         * loop-invariant.c (may_assign_reg_p): Do not allow VOIDmode.
5782
5783 2006-02-13  Richard Sandiford  <richard@codesourcery.com>
5784
5785         * config/floatunditf.c: Use if __LDBL_MANT_DIG__ == 113.
5786         * config/fixtfdi.c: Likewise.
5787         * config/fixunstfdi.c: Likewise.
5788         * config/floatditf.c: Likewise.
5789
5790 2006-02-13  Roger Sayle  <roger@eyesopen.com>
5791
5792         PR middle-end/24427
5793         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Transform (X&C1)|C2
5794         into (X,C2) if C1 is a subset of the bits of C2.  Transform
5795         (X&C1)|C2 into X|C2 if C1|C2 == ~0.  Canonicalize (X&C1)|C2 as
5796         (X&(C1&~C2))|C2.
5797         <BIT_AND_EXPR>: Canonicalize (X|C1)&C2 as (X&C2)|(C1&C2).
5798
5799 2006-02-13  Josh Conner  <jconner@apple.com>
5800
5801         PR target/25376
5802         * varasm.c (function_section): Check for section name before
5803         calling select_section on targets that define
5804         USE_SELECT_SECTION_FOR_FUNCTIONS.  On other targets, use
5805         unlikely_text_section instead of hot_function_section if
5806         first_function_block_is_cold.
5807
5808 2006-02-13  J"orn Rennecke <joern.rennecke@st.com>
5809
5810         PR middle-end/25335
5811         * reload1.c (gen_reload): Also use find_replacement in UNARY_P case.
5812
5813 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
5814
5815         PR rtl-optimization/26222
5816         * function.c (assign_stack_temp_for_type): Do not reuse stack slots
5817         after tree->rtl expansion.
5818         * loop-invariant.c (move_invariant_reg): Use force_operand on rhs
5819         before passing it to emit_move_insn.
5820
5821 2006-02-12  Gabriel Dos Reis  <gdr@integrable-solutions.net>
5822
5823         * doc/invoke.texi (-Write-strings): Document that it is enabled by
5824         default.
5825         * c.opt (-Wwrite-strings): Declare variable warn_write_strings.
5826         Clarify documentation.
5827         * c-common.h (warn_write_strings): Remove.
5828         * c-common.c (warn_write_strings): Likewise.
5829         * c-opts.c (c_common_init_options): Enable -Wwrite-strings by
5830         default for C++.
5831
5832 2006-02-12  Roger Sayle  <roger@eyesopen.com>
5833
5834         PR middle-end/25724
5835         * dojump.c (do_jump): Call do_compare_rtx_and_jump.
5836         (do_jump_parts_zero_rtx): New function renamed from
5837         do_jump_parts_equality_rtx.  Made static.  Add a mode argument.
5838         (do_jump_parts_equality_rtx): New function split out from
5839         do_jump_parts_equality.  Old implementation renamed as above.
5840         Call do_jump_parts_zero_rtx if either operand is zero.
5841         (do_jump_parts_equality): Call do_jump_parts_equality_rtx to
5842         do all of the heavy lifting.
5843         (do_compare_rtx_and_jump): Handle multi-word comparisons by
5844         calling either do_jump_by_parts_greater_rtx or
5845         do_jump_by_parts_equality_rtx.
5846         * expr.h (do_jump_by_parts_equality_rtx): Remove prototype.
5847         * expmed.c (do_cmp_and_jump): Now multi-word optimization has
5848         moved to do_compare_rtx_and_jump, call it directly.
5849         * stmt.c (do_jump_if_equal): Remove static prototype.  Add a
5850         mode argument.  Call do_compare_rtx_and_jump.
5851         (emit_case_nodes): Update calls to do_jump_if_equal.
5852
5853 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
5854
5855         PR rtl-optimization/26225
5856         * loop-invariant.c (may_assign_reg_p): Do not allow BLKmode operands.
5857
5858 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
5859
5860         PR rtl-optimization/26232
5861         * loop-invariant.c (find_invariant_insn): Ignore insns that set CC0.
5862
5863 2006-02-11  Jason Merrill  <jason@redhat.com>
5864
5865         PR tree-opt/24365
5866         * tree-inline.c (declare_return_variable): Just don't use the
5867         modify target if it's a gimple complex reg and the return slot
5868         isn't.
5869
5870 2006-02-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
5871
5872         * doc/contrib.texi: Update my entry.
5873
5874 2006-02-10  Geoffrey Keating  <geoffk@apple.com>
5875
5876         * config/i386/darwin.h (DBX_REGISTER_NUMBER): Define.
5877
5878 2006-02-10  Diego Novillo  <dnovillo@redhat.com>
5879
5880         * tree-inline.c (estimate_num_insns_1): Make OpenMP directives
5881         expensive.
5882
5883 2006-02-10  Zdenek Dvorak <dvorakz@suse.cz>
5884
5885         * doc/invoke.texi (-floop-optimize2): Removed.
5886         * toplev.c (process_options): Remove handling of flag_loop_optimize2.
5887         * loop-init.c (gate_handle_loop2): Do not test flag_loop_optimize2.
5888         Test flag_branch_on_count_reg only if HAVE_doloop_end.
5889         * common.opt (floop-optimize2): Removed.
5890         (fmove-loop-invariants): Enabled by default.
5891
5892 2006-02-10  Sebastian Pop  <pop@cri.ensmp.fr>
5893
5894         * tree-if-conv.c (combine_blocks): Free the result of
5895         get_loop_exit_edges.
5896
5897 2006-02-10  Jeff Law  <law@redhat.com>
5898
5899         * fold-const.c (tree_expr_nonzero_p): Fix thinko.
5900
5901         PR tree-optimization/26213
5902         * tree-ssa-threadedge.c (simplify_control_stmt_condition): Do not
5903         loop trying to follow SSA_NAME_VALUE chains.
5904
5905 2006-02-10  Richard Guenther  <rguenther@suse.de>
5906
5907         * tree-dfa.c (get_ref_base_and_extent): When computing maxsize
5908         deal with structures that end in implicitly variable sized arrays.
5909
5910 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
5911
5912         PR rtl-optimization/24762
5913         * df-scan.c (df_bb_refs_record): Record correct registers defined on
5914         eh edges.
5915
5916 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
5917
5918         * tree-ssa-loop-ivopts.c (struct loop_data, loop_data): Removed.
5919         (struct ivopts_data): Add regs_used field.
5920         (tree_ssa_iv_optimize_init): Do not allocate aux fields for loops.
5921         (ivopts_global_cost_for_size, determine_set_costs): Use data->regs_used
5922         instead of loop_data->regs_used;
5923         (free_loop_data): Do not free aux fields for loops.
5924         (tree_ssa_iv_optimize): Do not pass loops to tree_ssa_iv_optimize_init
5925         and tree_ssa_iv_optimize_finalize.
5926
5927 2006-02-09  Kaz Kojima  <kkojima@gcc.gnu.org>
5928
5929         * config/sh/sh.h (FUNCTION_VALUE): Don't handle CHAR_TYPE.
5930
5931 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
5932
5933         PR target/26141
5934         * sh.c (sh_gimplify_va_arg_expr): Don't change the result type when
5935         computing the effective result type.
5936
5937 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
5938
5939         PR inline-asm/16194
5940         * tree.h (decl_overlaps_hard_reg_set_p) Don't declare.
5941         (tree_overlaps_hard_reg_set): Declare.
5942         * stmt.c (decl_overlaps_hard_reg_set_p): Now static.  Change return
5943         type and signature to match function type expected by walk_tree.
5944         (tree_overlaps_hard_reg_set): New function.
5945         (decl_conflicts_with_clobbers_p): Rename to:
5946         (tree_conflicts_with_clobbers_p).  Take HARD_REG_SET * argument.
5947         Use tree_overlaps_hard_reg_set.  Changed caller.
5948         * doc/tm.texi (TARGET_MD_ASM_CLOBBERS): Replace
5949         decl_overlaps_hard_reg_set_p with tree_overlaps_hard_reg_set.
5950         * cris.c (cris_md_asm_clobbers): Likewise.
5951
5952 2006-02-09  Bernd Schmidt  <bernd.schmidt@analog.com>
5953
5954         * reload1.c (emit_input_reload_insns): Delete code that tries to
5955         inherit using find_equiv_reg.
5956
5957 2006-02-09  Gabriel Dos Reis  <gdr@integrable-solutions.net>
5958
5959         * c-common.h (flag_const_strings): Don't declare.
5960         * c-common.c (flag_const_strings): Remove.
5961         * c.opt (fconst_strings): Remove.
5962         * c-opts.c (c_common_handle_option): Remove <OPT_fconst_strings>.
5963         <OPT_Wwrite_strings>: Don't set flag_const_strings.
5964         (c_common_init_options): Don't set flag_const_strings.
5965         * doc/invoke.texi (-fno-const-strings): Remove documentation.
5966
5967 2006-02-09  Richard Earnshaw  <richard.earnshaw@arm.com>
5968
5969         * arm.md (tlobits_cbranch): New pattern.
5970         * arm.h (arm_select_cc_mode): For thumb, only return CC_Nmode if
5971         testing a single bit.
5972
5973 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
5974
5975         PR tree-opt/26179
5976         * tree-ssa-pre.c (create_component_ref_by_pieces):
5977         Handle RETURN_DECL like VAR_DECL.
5978
5979 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
5980
5981         PR middle-end/26134
5982         * fold-const.c (fold_indirect_ref_1): Fold
5983         "*(foo *)&complexfoo" to "__real__ complexfoo"
5984         and "((foo*)&complexfoo)[1]" to "__imag__ complexfoo".
5985
5986 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
5987
5988         * tree-flow-inline.h (var_can_have_subvars):
5989         Volatile variables should not have subvariables.
5990
5991 2006-02-09  Diego Novillo  <dnovillo@redhat.com>
5992
5993         PR 26180
5994         * tree-vrp.c (vrp_int_const_binop): Detect overflow when
5995         multiplying unsigned values.
5996         Tidy comments.
5997
5998 2006-02-09  Eric Botcazou  <ebotcazou@libertysurf.fr>
5999
6000         * config/sparc/sparc.c (tls_call_delay): Fix oversight.
6001
6002 2006-02-08  Jason Merrill  <jason@redhat.com>
6003
6004         PR c++/25979
6005         * tree.def: Elaborate on difference from MODIFY_EXPR.
6006         * doc/c-tree.texi (INIT_EXPR): Likewise.
6007         * gimplify.c (internal_get_tmp_var): Use INIT_EXPR.
6008         (gimplify_decl_expr, gimplify_init_ctor_eval): Likewise.
6009         (gimplify_target_expr): Likewise.
6010         (gimplify_cond_expr): Remove target handling.
6011         (gimplify_modify_expr): Don't clobber INIT_EXPR code here.
6012         (gimplify_expr): Clobber it here.
6013         (gimplify_modify_expr_rhs): Push assignment into COND_EXPR here.
6014         Do return slot optimization if we have an INIT_EXPR.
6015
6016         PR tree-opt/24365
6017         * tree-inline.c (declare_return_variable): Also clear
6018         DECL_COMPLEX_GIMPLE_REG_P as needed in the modify_dest case.
6019
6020         PR c++/16405
6021         * gimplify.c (gimplify_modify_expr_rhs): Re-enable *& handling.
6022
6023         PR middle-end/22439
6024         * gimplify.c (gimplify_one_sizepos): Fix typo.
6025
6026 2006-02-08  Jeff Law  <law@redhat.com>
6027
6028         PR tree-optimization/21417
6029         * tree-ssa-threadedge.c (thread_across_edge): Reject threading
6030         across a backedge if the control statement at the end of the
6031         block is data dependent on other statements in the same block.
6032         (record_temporary_equivalences_from_stmts): Remove over-conservative
6033         test for threading across backedges.
6034
6035         * tree-ssa-dce.c (remove_dead_statement): When removing a dead
6036         control statement, handle all three special cases in the same
6037         manner as they all have the same desired solution.  No longer
6038         special case edge flag updating when the post dominator is
6039         the exit block.
6040
6041 2006-02-08  Roger Sayle  <roger@eyesopen.com>
6042
6043         * tree.def (CHAR_TYPE): Remove.
6044         * dbxout.c (dbxout_type): Delete dead handling of CHAR_TYPE.
6045         * dwarf2out.c (base_type_die, is_base_type): Likewise.
6046         (gen_type_die) <ARRAY_TYPE>: Remove handling of CHAR_TYPE arrays.
6047         (gen_string_type_die): Delete unreachable function.
6048
6049         * tree-pretty-print.c (dump_generic_node): Don't handle CHAR_TYPE.
6050         * tree.c (build_int_cst_wide, type_contains_placeholder_1,
6051         type_hash_eq, variably_modified_type_p, walk_type_fields): Likewise.
6052         * tree.h (NUMERICAL_TYPE_CHECK, INTEGRAL_TYPE_P): Likewise.
6053         * builtins.c (type_to_class): Likewise.
6054         * fold-const.c (fold_convert, build_range_check,
6055         merge_ranges): Likewise.
6056         * expr.c (count_type_elements): Likewise.
6057         * c-pretty-print.c (pp_c_type_specifier): Likewise.
6058         * stor-layout.c (layout_type): Likewise.
6059         * ipa-type-escape.c (type_to_consider): Likewise.
6060         * gimplify.c (omp_firstprivatize_type_sizes,
6061         gimplify_type_sizes): Likewise.
6062         * explow.c (promote_mode): Likewise.
6063         * tree-sra.c (is_sra_scalar_type): Likewise.
6064         * varasm.c (output_constant): Likewise.
6065         * tree-inline.c (remap_type_1): Likewise.
6066         * convert.c (convert_to_pointer, convert_to_real,
6067         convert_to_integer, convert_to_complex): Likewise.
6068
6069 2006-02-08  Daniel Berlin  <dberlin@dberlin.org>
6070
6071         * df-scan.c (df_def_record_1): A set destination may
6072         be a parallel regardless of mode.
6073
6074 2006-02-08  Roger Sayle  <roger@eyesopen.com>
6075
6076         PR target/22209
6077         * config/mips/mips.h (MIN_UNITS_PER_WORD): Don't define for libgcc.
6078         * config/mips/_tilib.c: Remove.
6079         * config/fixtfdi.c: New libgcc source file.
6080         * config/fixunstfdi.c: New source file.
6081         * config/floatditf.c: New source file.
6082         * config/floatunditf.c: New souce file.
6083         * config/mips/t-iris6 (LIB2FUNCS_EXTRA): Include the new source
6084         files above instead of config/mips/_tilib.c.
6085         * config/mips/t-linux64 (LIB2FUNCS_EXTRA): Likewise.
6086
6087 2006-02-08  Jeff Law  <law@redhat.com>
6088
6089         PR tree-optimization/26169
6090         * tree-vrp.c (execute_vrp): Perform any queued SSA updates before
6091         threading jumps.
6092
6093 2006-02-08  Zdenek Dvorak <dvorakz@suse.cz>
6094
6095         * df.h (DF_REG_SIZE): Return the length of the initialized
6096         part of the array.
6097
6098 2006-02-08  Nathan Sidwell  <nathan@codesourcery.com>
6099
6100         * gcc/config/m68k/lb1sf68.asm (__divsf3, __divdf3, __mulsf3,
6101         __muldf3): Return a correctly signed zero.
6102
6103 2006-02-08  Paolo Bonzini  <bonzini@gnu.org>
6104
6105         * passes.c (register_one_dump_file): Accept the current properties
6106         instead of pass number.  Adjust call to dump_register.  Remove
6107         duplicated code.
6108         (register_dump_files): Now a wrapper around...
6109         (register_dump_files_1): ... this one.  Do not modify the pass
6110         structure.
6111         (next_pass_1): Cosmetic fix.
6112         (execute_todo): Keep second parameter only.  Use curr_properties
6113         instead of fetching it from the pass structure.  Check and set
6114         last_verified.
6115         (execute_one_pass): Handle TODO_set_props.  Use curr_properties
6116         instead of fetching it from the pass structure.  Fix calls to
6117         execute_todo.  Update curr_properties and initialize .vcg RTL dump
6118         after running the pass.  Reset last_verified.
6119         * tree-dump.c (dump_files): Renumber consecutively.  Put .cgraph dump
6120         at the beginning.
6121         (FIRST_AUTO_NUMBERED_DUMP): New.
6122         (dump_register): Remove "num" parameter, assign it within the
6123         function.
6124         (get_dump_file_name): Modify template for dumps.
6125         * tree-dump.h (dump_register): Adjust prototype.
6126         * tree-pass.h (enum tree_dump_index): Move cgraph at the beginning.
6127         (PROP_trees): Add PROP_gimple_lomp.
6128         (TODO_set_props): New.
6129         * gimple-low.c (pass_lower_cf): Do not destroy PROP_gimple_lcf.
6130         * tree-eh.c (pass_lower_eh): Do not destroy PROP_gimple_leh.
6131         * cfgexpand.c (pass_expand): Destroy PROP_trees.
6132
6133 2006-02-08  Jakub Jelinek  <jakub@redhat.com>
6134
6135         * config.gcc (sparc-*-linux*): Add sparc/t-linux to tmake_file.
6136         (sparc64-*-linux*): Likewise.
6137         * config/sparc/t-linux64 (SHLIB_MAPFILES): Removed.
6138         * config/sparc/t-linux: New file.
6139         * config/sparc/libgcc-sparc-glibc.ver (__fixtfdi, __fixunstfdi,
6140         __floatditf): Export at GCC_LDBL_3.0 if -m32 -mlong-double-128.
6141         (__divtc3, __multc3, __powitf2): Export at GCC_LDBL_4.0.0 if
6142         -m32 -mlong-double-128.
6143
6144         * config.gcc (alpha*-*-linux*): Add alpha/t-linux to tmake_file.
6145         * config/alpha/t-linux: New file.
6146         * config/alpha/libgcc-alpha-ldbl.ver: New file.
6147
6148         * config/sparc/linux.h (TARGET_OS_CPP_BUILTINS): Define
6149         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128.
6150         (CPP_SUBTARGET_SPEC): Don't add -D__LONG_DOUBLE_128__ here.
6151         * config/sparc/linux64.h (TARGET_OS_CPP_BUILTINS): Define
6152         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128 and TARGET_ARCH32.
6153         (CPP_ARCH32_SPEC): Remove.
6154
6155 2006-02-07  Uttam Pawar  <uttamp@us.ibm.com>
6156
6157         PR tree-optimization/26145
6158         * tree-ssa-loop-unswitch.c (tree_unswitch_single_loop): Free
6159         bbs pointer.
6160
6161 2006-02-07  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
6162
6163         PR target/26109
6164         * pa.c (attr_length_indirect_call): Don't return length 8 for distances
6165         >= 240000 when generating code for SOM runtime.
6166         (output_indirect_call): Don't use "b,l" instruction for indirect calls
6167         to $$dyncall when generating code for SOM runtime..
6168
6169 2006-02-07  Dirk Mueller  <dmueller@suse.com>
6170
6171         PR c++/18150
6172         * doc/invoke.texi (-Wsequence-point): Update documentation
6173         that -Wsequence-point is implemented for C++ as well.
6174
6175 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
6176
6177         * config/sol26.h (CPP_SUBTARGET_SPEC): Accept -pthread.
6178         * config/sol2.h (CPP_SUBTARGET_SPEC): Likewise.
6179         (LIB_SPEC): Likewise.
6180         * doc/invoke.texi (SPARC options): Document -pthread.
6181
6182 2006-02-07  Geoffrey Keating  <geoffk@apple.com>
6183
6184         * config/i386/i386.c (ix86_delegitimize_address): Support Darwin
6185         PIC addresses.
6186
6187 2006-02-07  Roger Sayle  <roger@eyesopen.com>
6188
6189         * config/sparc/sparc.c (sparc_type_code): Don't handle CHAR_TYPE.
6190         Correct comment describing BOOLEAN_TYPE.
6191
6192 2006-02-07  Dirk Mueller  <dmueller@suse.com>
6193
6194         * c.opt: C++ frontend supports -Wdiv-by-zero.
6195         * c-opts.c (c_common_handle_option): Remove dead case.
6196
6197 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
6198
6199         * configure.ac (TLS assembler check): Do not enable TLS by
6200         default on SPARC/Solaris before version 10.
6201         * configure: Regenerate.
6202
6203 2006-02-07  David Edelsohn  <edelsohn@gnu.org>
6204
6205         * doc/invoke.texi (xl-compat): Document conversion and support
6206         routine names.
6207
6208 2006-02-07  Jeff Law  <law@redhat.com>
6209
6210         * tree-vrp.c (find_conditional_asserts): Update comments.
6211         (simplify_stmt_for_jump_threading): New.
6212         (identify_jump_threads, finalize_jump_threads): New.
6213         (vrp_finalize): Call identify_jump_threads.
6214         (execute_vrp): Call finalize_jump_threads.
6215         * tree-ssa-dom.c (struct opt_stats_d): Remove num_iterations field.
6216         (vrp_element, vrp_data, vrp_element_p): Remove.
6217         (vrp_hash_elt, vrp_variables_stack): Remove.
6218         (vrp_hash, vrp_eq, record_range): Remove.
6219         (simplify_cond_and_lookup_avail_expr): Remove.
6220         (extract_range_from_cond): Remove.
6221         (thread_across_edge): Relocated into tree-ssa-threadedge.c.
6222         (simplify_stmt_for_jump_threading): New.
6223         (dom_thread_across_edge): New wrapper.
6224         (tree_ssa_dominator_optimize): No longer initialize or
6225         finalize any of the VRP datastructures.  Remove iteration
6226         step and simplify as a result of removal of iteration step.
6227         (pass_dominator): Perform a cfg cleanup after DOM.
6228         (dom_opt_finalize_block): Use the new common routines
6229         for threading jumps.  Simplify stack management slightly.
6230         No longer need to unwind VRP state.
6231         (record_equivalences_from_incoming_edge): No longer record
6232         VRP information.
6233         (eliminate_redundant_computations): No longer call
6234         simplify_cond_and_lookup_avail_expr.
6235         * tree-flow.h (potentially_threadable_block): Prototype.
6236         (thread_across_edge): Likewise.
6237         * Makefile.in (OBJS-common):  Add tree-ssa-threadedge.o
6238         (tree-ssa-threadedge.o): Add dependencies.
6239         * tree-ssa-threadedge.c: New file.
6240         * passes.c (init_optimization_passes): Merge PHIs before
6241         calling VRP.  Run VRP again late in the SSA optimization pipeline.
6242
6243 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
6244
6245         * df-core.c (df_set_blocks): Do not dereference function pointers.
6246         (df_finish1): Likewise.
6247         (df_hybrid_search_forward): Likewise.
6248         (df_hybrid_search_backward): Likewise.
6249         (df_iterative_dataflow): Likewise.
6250         (df_analyze_problem): Likewise.
6251         (df_compact_blocks): Likewise.
6252         (df_dump): Likewise.
6253         * df-scan.c (df_rescan_blocks): Likewise.
6254         (df_record_entry_block_defs): Likewise.
6255
6256         * genconditions.c (write_conditions): Guard the definition of
6257         'insn_conditions' with the check on GCC version.
6258         (write_writer): Guard the traversal 'insn_conditions' with
6259         the check on GCC version.
6260
6261 2006-02-07  Richard Guenther  <rguenther@suse.de>
6262
6263         PR c++/26140
6264         Revert
6265         2006-01-30  Richard Guenther  <rguenther@suse.de>
6266         PR c++/23372
6267         * gimplify.c (gimplify_target_expr): Handle easy cases
6268         without creating a temporary.
6269
6270 2006-02-07  Pete Steinmetz  <steinmtz@us.ibm.com>
6271
6272         * sched-rgn.c (compute_dom_prob_ps, compute_trg_info): Eradicate
6273         use of float in probability computations.  Use edge probabilities
6274         in place of statically computed probabilities.
6275         (min_spec_prob): New static variable.
6276         (schedule_insns): Initialize it.
6277         (GET_SRC_PROB): Removed.
6278         * doc/invoke.texi (min-sched-prob): Renamed to min-spec-prob.
6279
6280 2006-02-07  Alexandre Oliva  <aoliva@redhat.com>
6281
6282         PR debug/24444
6283         * config/ia64/unwind-ia64.c: Revert last change.
6284         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Removed.
6285         (INCOMING_FRAME_SP_OFFSET): Define.
6286
6287 2006-02-06  Roger Sayle  <roger@eyesopen.com>
6288
6289         * config/ia64/ia64.c (hfa_element_mode): Don't handle CHAR_TYPE.
6290
6291 2006-02-07  Ben Elliston  <bje@au.ibm.com>
6292
6293         * config/i386/i386.c (ix86_scalar_mode_supported_p): New.
6294         (TARGET_SCALAR_MODE_SUPPORTED_P): Define hook.
6295         (classify_argument): Handle SDmode, DDmode, TDmode for 64-bit.
6296         (ix86_return_in_memory): Handle TDmode.
6297         (ix86_libcall_value): Handle SDmode, DDmode, TDmode.
6298         (ix86_value_regno): Return non-TDmode decimal float modes in %eax.
6299
6300 2006-02-06  Richard Sandiford  <richard@codesourcery.com>
6301
6302         * reorg.c (dbr_schedule): Use dump_file instead of file.
6303
6304 2006-02-06  Steve Ellcey  <sje@cup.hp.com>
6305
6306         PR target/25917
6307         * config/ia64/predicates.md (extr_len_operand): New predicate.
6308         * config/ia64/ia64.md (extv): Tighten constraints.
6309         (extzv): Ditto.
6310         (*tbit_and_2): Ditto.
6311         (*tbit_and_3): Ditto.
6312         (*tbit_or_2): Ditto.
6313         (*tbit_or_3): Ditto.
6314         (*bit_zero): Ditto.
6315         (*bit_one): Ditto.
6316
6317 2006-02-06  Andrew Pinski  <pinskia@physics.uc.edu>
6318
6319         PR target/23359
6320         * config/i386/i386.md (trap): Use ASM_SHORT instead of .word.
6321
6322 2006-02-06  Zdenek Dvorak <dvorakz@suse.cz>
6323
6324         * tree-vrp.c (execute_vrp): Do not pass dump argument to.
6325         loop_optimizer_init and loop_optimizer_finalize
6326         * tree-ssa-sink.c (execute_sink_code): Ditto.
6327         * tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
6328         * tree-ssa-loop.c (tree_loop_optimizer_init, tree_ssa_loop_init,
6329         tree_ssa_loop_done): Ditto.
6330         * tree-ssa-pre.c (init_pre, fini_pre): Ditto.
6331         * sched-ebb.c: Include output.h.
6332         (schedule_ebbs): Do not use dump argument.
6333         * value-prof.h (struct profile_hooks): Remove profile_dump_file.
6334         * loop.c (loop_dump_stream): Removed.
6335         (loop_optimize, rest_of_handle_loop_optimize): Do not use dump
6336         argument.
6337         (scan_loop, move_movables, find_and_verify_loops, mark_loop_jump,
6338         emit_prefetch_instructions, loop_bivs_find, loop_bivs_check,
6339         final_biv_value, loop_biv_eliminable_p, loop_givs_rescan,
6340         loop_iterations, strength_reduce, record_biv, record_giv,
6341         final_giv_value, check_final_value, check_ext_dependent_givs,
6342         combine_givs, check_dbra_loop, maybe_eliminate_biv, load_mems,
6343         try_copy_prop, loop_delete_insns, try_swap_copy_prop): Use
6344         dump_file instead of loop_dump_stream.
6345         * ddg.c (print_ddg_edge, print_ddg, vcg_print_ddg): Do not call
6346         argument dump_file.
6347         * reorg.c (dbr_schedule, rest_of_handle_delay_slots): Do not use
6348         dump argument.
6349         * flow.c (life_analysis, rest_of_handle_life): Ditto.
6350         * haifa-sched.c: Include output.h
6351         (schedule_insns, sched_init): Do not use dump argument.
6352         * mode-switching.c (optimize_mode_switching): Ditto.
6353         * modulo-sched.c (stats_file): Removed.
6354         (print_node_sched_params): Do not call argument dump_file.
6355         (sms_schedule_by_order, loop_canon_p, sms_schedule,
6356         rest_of_handle_sms): Do not use dump argument.  Use dump_file instead
6357         of stats_file.
6358         * cse.c (cse_main, rest_of_handle_cse, rest_of_handle_cse2): Do not
6359         use dump argument.
6360         * loop-init.c (loop_optimizer_init, loop_optimizer_finalize,
6361         rtl_loop_init, rtl_loop_done): Ditto.
6362         * global.c (global_alloc, rest_of_handle_global_alloc): Ditto.
6363         * predict.c (combine_predictions_for_bb, tree_estimate_probability):
6364         Ditto.
6365         * recog.c (peephole2_optimize, rest_of_handle_peephole2): Ditto.
6366         * lcm.c (pre_edge_lcm, pre_edge_rev_lcm): Ditto.
6367         * regmove.c (fixup_match_1, fixup_match_2, regmove_optimize,
6368         rest_of_handle_regmove, rest_of_handle_stack_adjustments): Ditto.
6369         * emit-rtl.c (renumber_insns): Ditto.
6370         * cfgexpand.c (add_reg_br_prob_note, expand_gimple_cond_expr,
6371         expand_gimple_basic_block, tree_expand_cfg): Ditto.
6372         * regclass.c (regclass): Ditto.
6373         * tree-outof-ssa.c (analyze_edges_for_bb, perform_edge_inserts,
6374         remove_ssa_form, rewrite_out_of_ssa): Ditto.
6375         * reg-stack.c (compensate_edge, compensate_edges, convert_regs_1,
6376         convert_regs_2, convert_regs, reg_to_stack, rest_of_handle_stack_regs):
6377         Ditto.
6378         * sched-rgn.c (schedule_insns, rest_of_handle_sched): Ditto.
6379         * local-alloc.c (rest_of_handle_local_alloc): Do not pass dump_file
6380         to regclass.
6381         * gcse.c (gcse_file, debug_stderr): Removed.
6382         (gcse_main, bypass_jumps, rest_of_handle_jump_bypass,
6383         rest_of_handle_gcse): Do not use dump argument.
6384         (cprop_jump, cprop_insn, do_local_cprop, cprop, find_implicit_sets,
6385         one_cprop_pass, bypass_block, compute_pre_data, insert_insn_end_bb,
6386         pre_edge_insert, pre_insert_copy_insn, pre_delete, one_pre_gcse_pass,
6387         compute_code_hoist_vbeinout, compute_code_hoist_data,
6388         one_code_hoisting_pass, trim_ld_motion_mems, update_ld_motion_stores,
6389         compute_store_table, build_store_vectors, insert_insn_start_bb,
6390         insert_store, remove_reachable_equiv_notes, replace_store_insn,
6391         store_motion): Use dump_file instead of gcse_file.
6392         * ipa-type-escape.c (type_escape_execute): Remove debugging comments.
6393         * profile.c (profile_dump_file): Removed.
6394         (branch_prob): Use dump_file instead of profile_dump_file.
6395         * ipa.c (cgraph_remove_unreachable_nodes): Do not call argument
6396         dump_file.
6397         * tree-ssa-copy.c (dump_copy_of): Ditto.
6398         * rtl-factoring.c (rtl_seqabstr, rest_of_rtl_seqabstr): Do not pass
6399         dump file to life_analysis.
6400         * bt-load.c (branch_target_load_optimize): Ditto.
6401         * cfgcleanup.c (rest_of_handle_jump2): Do not pass dump_file to
6402         renumber_insns.
6403         * rtl.h (cse_main, renumber_insns, schedule_insns, schedule_ebbs,
6404         regclass, dbr_schedule): Declaration changed.
6405         * sched-int.h (sched_init): Declaration changed.
6406         * tree-profile.c (tree_profile_dump_file): Removed.
6407         (tree_profile_hooks): Removed profile_dump_file hook.
6408         * rtl-profile (rtl_profile_dump_file): Removed.
6409         (rtl_profile_hooks): emoved profile_dump_file hook.
6410         * cfgloop.h (loop_optimizer_init, loop_optimizer_finalize): Declaration
6411         changed.
6412         * c-gimplify.c (c_genericize): Do not call local variable dump_file.
6413         * tree-cfg.c (build_tree_cfg): Ditto.
6414         * Makefile.in (haifa-sched.o, sched-ebb.o): Add output.h dependency.
6415         * basic-block.h (life_analysis, pre_edge_lcm, pre_edge_rev_lcm):
6416         Declaration changed.
6417         * config/sh/sh.c (sh_output_mi_thunk): Do not pass dump_file to
6418         life_analysis and schedule_insns.
6419         * config/m68hc11/m68hc11.c (m68hc11_reorg): Do not pass dump_file to
6420         life_analysis.
6421         * config/mt/mt.c (mt_machine_reorg): Do not pass dump_file to
6422         dbr_schedule.
6423         * config/mips/mips.c (mips_reorg): Ditto.
6424         * config/ia64/ia64.c (ia64_reorg): Do not pass dump_file to
6425         schedule_ebbs.
6426
6427 2006-02-06  Aldy Hernandez  <aldyh@redhat.com>
6428
6429         * config/s390/s390.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
6430         (s390_mangle_fundamental_type): New.
6431         * config/s390/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
6432         Define.
6433
6434         * config/alpha/alpha.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
6435         (alpha_mangle_fundamental_type): New.
6436         * config/alpha/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
6437         Define.
6438
6439         * config/sparc/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
6440         Define.
6441         * config/sparc/linux64.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
6442         Define.
6443         * config/sparc/sparc.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
6444         (sparc_mangle_fundamental_type): New.
6445
6446 2006-02-06  Jakub Jelinek  <jakub@redhat.com>
6447
6448         * config.gcc (s390-*-linux*): Add s390/t-linux to tmake_file.
6449         (s390x-*-linux*): Likewise.
6450         * config/s390/t-linux64 (SHLIB_MAPFILES): Removed.
6451         * config/s390/t-linux: New file.
6452
6453 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
6454
6455         * config/i386/sync.md (sync_add<mode>, sync_sub<mode>, sync_ior<mode>,
6456         sync_and<mode>, sync_xor<mode>): Operand 0 is in-out.
6457
6458 2006-02-06  Daniel Berlin  <dberlin@dberlin.org>
6459
6460         * tree-ssa-pre.c (bb_value_sets_t): Add antic_safe_loads.
6461         (ANTIC_SAFE_LOADS): New macro.
6462         (find_or_generate_expression): Add prototype.
6463         (set_contains_value): Allow null set for sake of not always having
6464         to allocate ANTIC_SAFE_LOADS.
6465         (phi_translate): Move placement of AGGREGATE_TYPE_P check.
6466         Allow COMPONENT_REF too.
6467         (valid_in_set): Allow COMPONENT_REF.
6468         Check ANTIC_SAFE_LOADS too.
6469         (compute_antic_aux): Print out ANTIC_SAFE_LOADS.
6470         (compute_rvuse_and_antic_safe): Add ANTIC_SAFE computation, and
6471         rename.
6472         (can_PRE_operation): Add COMPONENT_REF.
6473         (create_component_ref_by_pieces): New function.
6474         (create_expression_by_pieces): Use create_component_ref_by_pieces.
6475         (insert_aux): Move AGGREGATE_TYPE_P check here.
6476         (compute_avail): Set bb local stmt uids.
6477         (pass_pre): Use TODO_update_ssa_only_virtuals.
6478
6479 2006-02-06  Ben Elliston  <bje@au.ibm.com>
6480
6481         * configure.ac: Unconditionally disable decimal float by default.
6482         * configure: Regenerate.
6483
6484 2006-02-06  Ben Elliston  <bje@au.ibm.com>
6485
6486         * read-rtl.c (read_name): Terminate reading on EOF.
6487
6488 2006-02-06  Ben Elliston  <bje@au.ibm.com>
6489
6490         * dfp.c (decimal_real_arithmetic): Change second argument type
6491         from int to enum tree_code. Do not always return true, but now
6492         return result of any call to decimal_do helper functions.
6493         * dfp.h (decimal_real_arithmetic): Update prototype.
6494
6495 2006-02-05  Eric Botcazou  <ebotcazou@libertysurf.fr>
6496
6497         * config/sparc/sol2-bi.h (SPARC_DEFAULT_CMODEL): Set to CM_MEDMID.
6498
6499 2006-02-05  Andrew Pinski  <pinskia@physics.uc.edu>
6500
6501         PR tree-opt/25251
6502         * tree-cfg.c (cleanup_dead_labels): Also don't remove
6503         forced labels.
6504
6505 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
6506
6507         * tree-vrp.c (cfg_loops): Removed.
6508         (adjust_range_with_scev, vrp_visit_assignment, execute_vrp):
6509         Use current_loops instead of cfg_loops.  Pass flags to
6510         loop_optimizer_init.
6511         * cfgloopmanip.c (fix_loop_structure): Update only available
6512         information.
6513         * tree-ssa-loop-ch.c (copy_loop_headers): Pass flags to
6514         loop_optimizer_init.
6515         * modulo-sched.c (build_loops_structure): Removed.
6516         (sms_schedule): Use loop_optimizer_init.
6517         * loop-init.c (loop_optimizer_init): Use flags to determine
6518         which properties of loops to prepare.
6519         (rtl_loop_init): Pass flags to loop_optimizer_init.
6520         * tree-ssa-sink.c (execute_sink_code): Ditto.
6521         * tree-ssa-loop.c (tree_loop_optimizer_init): Ditto.
6522         * tree-ssa-pre.c (init_pre): Ditto.
6523         * cfgloop.h (LOOPS_NORMAL): New.
6524         (loop_optimizer_init): Declaration changed.
6525
6526 2006-02-05  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
6527
6528         * pa/x-ada-hpux10, pa/t-pa-hpux10, pa/t-pa-hpux11: New files.
6529         * config.gcc (hppa[12]*-*-hpux10*): Use pa/t-pa-hpux10 instead of
6530         pa/t-pa.
6531         * config.gcc (hppa[12]*-*-hpux11*): Use pa/t-pa-hpux11 instead of
6532         pa/t-pa.
6533         * config.host (hppa*-*-hpux10*): Use pa/x-ada-hpux10 instead of
6534         pa/x-ada.
6535         * pa/t-pa-hpux: Add lib2funcs.asm and quadlib.c rules.
6536         * pa/t-pa64: Delete quadlib.c rule.
6537         * pa/x-ada: Revert last change.
6538         * pa/t-pa: Revert last change.  Delete quadlib.c rule.
6539
6540 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
6541
6542         PR rtl-optimization/26087
6543         * rtlanal.c (canonicalize_condition): Do not cross basic block
6544         boundaries.
6545
6546 2006-02-04  Alexandre Oliva  <aoliva@redhat.com>
6547
6548         PR debug/24444
6549         * config/ia64/ia64.c: Include debug.h.
6550         (MAX_ARTIFICIAL_LABEL_BYTES): New.
6551         (ia64_label_after_insn, ia64_dwarf2out_def_steady_cfa): New.
6552         (IA64_CHANGE_CFA_IN_EPILOGUE): Define to 0.
6553         (process_epilogue, process_set, process_for_unwind_directive):
6554         Output unwind info only if requested.  Add CFA info if requested.
6555         Add new arguments as needed.  Adjust callers.
6556         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Override
6557         incorrect default.
6558         (DWARF2_FRAME_INFO): Define to zero.
6559         * config/ia64/unwind-ia64.c: Remove code that compensated for
6560         the CFA offset error fixed above.
6561         * config/ia64/t-ia64 (ia64.o): Depend on debug.h.
6562         * dwarf2out.c (DWARF2_FRAME_INFO): Define default.
6563         (dwarf2out_do_frame): Require nonzero DWARF2_UNWIND_INFO for
6564         -funwind-tables and -fexceptions to enable frame info.
6565         (dwarf2out_frame_init): Define initial CFA even if
6566         DWARF2_UNWIND_INFO is disabled.  Call initial_return_save if
6567         DWARF2_UNWIND_INFO is nonzero, not just defined.
6568         (dwarf2out_frame_finish): Output non-EH call frame info only
6569         if DWARF2_FRAME_INFO is nonzero.
6570         (convert_cfa_to_loc_list,
6571         compute_frame_pointer_to_cfa_displacement): Define even if
6572         unwind info is not supported.
6573         (gen_subprogram_die): Use the above unconditionally.  Remove
6574         legacy alternate code.
6575         * toplev.c (compile_file): Compile in call to
6576         dwarf2out_frame_finish if DWARF2_DEBUGGING_INFO is defined.
6577         (lang_dependent_init): Ditto for dwarf2out_frame_init.
6578
6579 2006-02-04  David Edelsohn  <edelsohn@gnu.org>
6580             Jakub Jelinek  <jakub@redhat.com>
6581
6582         * config/rs6000/rs6000.c (rs6000_mangle_fundamental_type): Mangle
6583         IBM extended float format long double as "g" on powerpc*-linux.
6584
6585 2006-02-03  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
6586
6587         PR target/25926
6588         * pa/x-ada (X_ADA_CFLAGS): Define _X_HPUX10 on HP-UX 10.
6589         * pa/t-pa (TARGET_LIBGCC2_CFLAGS): Define _T_HPUX10 on HP-UX 10.
6590
6591 2006-02-03  Jason Merrill  <jason@redhat.com>
6592
6593         PR c++/25979
6594         * gimplify.c (gimplify_modify_expr_rhs): Disable *& optimization for now.
6595
6596         PR middle-end/25977
6597         * gimplify.c (gimplify_modify_expr_rhs): It's not always safe to do RVO
6598         on the return slot if it's an NRV.
6599
6600 2006-02-03  Zdenek Dvorak <dvorakz@suse.cz>
6601
6602         * tree-ssa-loop-ivopts.c (enum use_type): Remove USE_OUTER.
6603         (dump_use, add_derived_ivs_candidates, determine_use_iv_cost,
6604         rewrite_use): Do not handle USE_OUTER.
6605         (find_interesting_uses_outer_or_nonlin, find_interesting_uses_outer,
6606         add_iv_outer_candidates, may_replace_final_value,
6607         determine_use_iv_cost_outer, rewrite_use_outer): Removed.
6608         (find_interesting_uses_op): Functionality of
6609         find_interesting_uses_outer_or_nonlin moved here.
6610         (find_interesting_uses_outside): Use find_interesting_uses_op.
6611
6612 2006-02-03  Alan Modra  <amodra@bigpond.net.au>
6613
6614         PR target/25960
6615         * config/rs6000/darwin-ldouble.c (__gcc_qadd): Preserve -0.0 result.
6616
6617 2006-02-03  Andreas Krebbel  <krebbel1@de.ibm.com>
6618             Ulrich Weigand  <uweigand@de.ibm.com>
6619
6620         PR target/25864
6621         * config/s390/2084.md ("x_fsimptf", "x_fmultf", "x_fdivtf",
6622         "x_floadtf", "x_ftrunctf", "x_ftruncdf"): New insn reservations.
6623         * config/s390/fixdfdi.h (__fixunstfdi, __fixtfdi): New functions.
6624         * config/s390/s390.c (struct processor_costs): Add mxbr, sqxbr, dxbr
6625         and dxr fields.
6626         (z900_cost, z990_cost, z9_109_cost): Values for the new fields added.
6627         (s390_rtx_costs): Use the new fields to calculate rtx costs.
6628         (s390_secondary_input_reload_class, s390_secondary_output_reload_class):
6629         Define secondary reloads for TFmode moves.
6630         (constant_modes): Add TFmode.
6631         (NR_C_MODES): Set to 8.
6632         * config/s390/s390.h (TARGET_CPU_CPP_BUILTINS): Add __LONG_DOUBLE_128__
6633         builtin define.
6634         (LONG_DOUBLE_TYPE_SIZE): Set to 128 or 64.
6635         (LIBGCC2_LONG_DOUBLE_TYPE_SIZE, WIDEST_HARDWARE_FP_SIZE): Define.
6636         (HARD_REGNO_NREGS, HARD_REGNO_MODE_OK, CLASS_MAX_NREGS,
6637         CANNOT_CHANGE_MODE_CLASS): Consider TFmode.
6638         * config/s390/s390.md ("type" attribute): Add fsimptf, floadtf, fmultf,
6639         fdivtf, fsqrttf, ftrunctf, ftruncdf as possible values.
6640         (FPR mode macro): Add TFmode.
6641         (DSF mode macro): New.
6642         (<de>, <dee> mode attributes): Removed.
6643         (<xde>, <xdee>, <RRe>, <RXe>, <Rf> mode attributes): New.
6644         ("*cmp<mode>_ccs_0", "*cmp<mode>_ccs_0_ibm", "*cmp<mode>_ccs",
6645         "*cmp<mode>_ccs_ibm", "fix_trunc<FPR:mode><GPR:mode>2_ieee",
6646         "floatdi<mode>2", "floatsi<mode>2_ieee", "*add<mode>3",
6647         "*add<mode>3_cc", "*add<mode>3_cconly", "*add<mode>3_ibm",
6648         "*sub<mode>3", "*sub<mode>3_cc", "*sub<mode>3_cconly",
6649         "*sub<mode>3_ibm", "*mul<mode>3_ibm", "*fmadd<mode>", "*fmsub<mode>",
6650         "*div<mode>3", "*div<mode>3_ibm", "*neg<mode>2_cc",
6651         "*neg<mode>2_cconly", "*neg<mode>2", "*neg<mode>2_ibm",
6652         "*abs<mode>2_cc", "*abs<mode>2_cconly", "*abs<mode>2",
6653         "*abs<mode>2_ibm", "*negabs<mode>2_cc", "*negabs<mode>2_cconly",
6654         "*negabs<mode>2", "sqrt<mode>2"):
6655         Changed <de> to <xde>. R constraint replaced by <Rf>.
6656         ("*mul<mode>3"): Changed <dee> to <xdee>. R constraint replaced by
6657         <Rf>.
6658         ("fix_trunc<FPR:mode>di2"): 'FPR:' removed.
6659         ("*fmadd<mode>", "*fmsub<mode>"): FPR mode replaced by DSF.
6660         ("*movtf_64", "*movtf_31"): New insn definitions followed by 5
6661         splitters.
6662         ("movtf", "reload_outtf", "reload_intf", "trunctfdf2", "trunctfsf2",
6663         "extenddftf2", "extendsftf2"): New expanders.
6664         ("*trunctfdf2_ieee", "*trunctfdf2_ibm", "*trunctfsf2_ieee",
6665         "*trunctfsf2_ibm", "*extenddftf2_ieee", "*extenddftf2_ibm",
6666         "*extendsftf2_ieee", "*extendsftf2_ibm"): New insn patterns.
6667         * config/s390/s390.opt (mlong-double-128, mlong-double-64):
6668         New options.
6669         * config/s390/t-crtstuff (TARGET_LIBGCC2_CFLAGS): Macro defined.
6670         * config/s390/libgcc-glibc.ver (__divtc3, __multc3, __powitf2,
6671         __fixtfti, __fixunstfti, __floattitf, __fixtfdi, __fixunstfdi,
6672         __floatditf): Add a GCC_4.1.0 symbol version tag.
6673         * doc/invoke.texi (-mlong-double-128, -mlong-double-64): Document
6674         the new options.
6675
6676 2006-02-02  Andrew Pinski  <pinskia@physics.uc.edu>
6677
6678         PR target/25377
6679         * config/i386/i386.c (ix86_function_ok_for_sibcall):
6680         Use targetm.binds_local_p instead of TREE_PUBLIC.
6681
6682 2006-02-02  Roger Sayle  <roger@eyesopen.com>
6683
6684         * tree.h (TYPE_STRING_FLAG): Document that this field may be used
6685         on INTEGER_TYPEs to indicate that it denotes a character type.
6686         * tree.c (build_common_tree_nodes): Set TYPE_STRING_FLAG on
6687         signed_char_type_node, unsigned_char_type_node and char_type_node.
6688         * dwarf2out.c (base_type_die): Treat CHAR_TYPE identically to
6689         INTEGER_TYPE.  Use TYPE_STRING_FLAG to decide whether to emit
6690         a DW_ATE_[un]signed_char instead of a DW_ATE_[un]signed.
6691
6692 2006-02-02  Zdenek Dvorak <dvorakz@suse.cz>
6693             Daniel Berlin  <dberlin@dberlin.org>
6694
6695         * tree-tailcall.c (arg_needs_copy_p): New function.
6696         (eliminate_tail_call): Use arg_needs_copy_p.
6697         (tree_optimize_tail_calls_1): Ditto. Also call add_virtual_phis.
6698         (add_virtual_phis): New function.
6699
6700 2006-02-02  Jakub Jelinek  <jakub@redhat.com>
6701
6702         * config/sparc/sparc.c (sparc_output_scratch_registers): Use
6703         #ignore instead of #scratch for %g7 .register directive.
6704
6705 2006-02-02  Andreas Tobler  <a.tobler@schweiz.ch>
6706
6707         * config/sparc/freebsd.h (ENDFILE_SPEC): Add space to separate
6708         object files.
6709
6710 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
6711
6712         * flow.c (calculate_global_regs_live): Assert that there aren't any
6713         EDGE_FAKE edges.
6714
6715 2006-02-02  Paolo Bonzini  <bonzini@gnu.org>
6716
6717         * tree-flow-inline.h (bsi_after_labels): Rewrite, return
6718         what its name says.
6719         * lambda-code.c (perfect_nestify): Use bsi_insert_before on
6720         bsi_after_labels iterator.
6721         * tree-if-conv.c (find_phi_replacement_condition,
6722         replace_phi_with_cond_modify_expr): Likewise.
6723         * tree-scalar-evolution.c (scev_const_prop): Likewise.
6724         * tree-ssa-loop-ivopts.c (compute_phi_arg_on_exit): Likewise.
6725
6726 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
6727
6728         * tree-inline.c (copy_tree_r): Also copy OMP_CLAUSE nodes.
6729
6730 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
6731
6732         PR 25990
6733         * tree-cfg.c (move_block_to_fn): Clear out the basic block
6734         array after growing it.
6735
6736 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
6737
6738         PR middle-end/24901
6739         * fold-const.c (fold_checksum_tree): Change type of buf.
6740
6741 2006-02-01  Bernd Schmidt  <bernd.schmidt@analog.com>
6742
6743         * reload.c (push_secondary_reload): Initialize t_icode.
6744
6745 2006-02-01  Jakub Jelinek  <jakub@redhat.com>
6746
6747         * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): For
6748         -msoft-float -mlong-double-128 only issue a warning, but don't
6749         swich to DFmode long double.
6750
6751 2006-02-01  Hans-Peter Nilsson  <hp@axis.com>
6752
6753         * cse.c (fold_rtx) <case RTX_COMM_COMPARE, RTX_COMPARE>: When arg1
6754         has a constant equivalent, iterate over equivalents for arg0,
6755         calling simplify_relational_operation and if there's a result
6756         cheaper than X, apply fold_rtx and return the result.
6757
6758 2006-02-01  Jan Hubicka  <jh@suse.cz>
6759
6760         * opts.c (no_unit_at_a_time_default): New global variable.
6761         (decode_options): Use it.
6762         * opts.h (no_unit_at_a_time_default): Declare.
6763
6764 2006-02-01  Paul Brook  <paul@codesourcery.com>
6765
6766         * function.c (assign_parm_setup_reg): Use function argument promotion
6767         rules.
6768         * expr.c (expand_expr_real_1): Use function argument promotion rules
6769         for PARM_DECLs.
6770
6771 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
6772
6773         * gcc.c (process_command): Change j to 'unsigned int'.
6774
6775 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
6776
6777         PR middle-end/26001
6778         * expr.c (expand_expr_real_1) <case ARRAY_REF>:
6779         Use the corrected index for the character
6780         out of the string constant.
6781
6782 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
6783
6784         * mode-switching.c (optimize_mode_switching): Fix size
6785         allocated for bb_info[n_entities].
6786
6787 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
6788
6789         * gcc.c (main): Correct type that is allocated for
6790         explicit_link_files.
6791
6792 2006-01-31  Jakub Jelinek  <jakub@redhat.com>
6793
6794         * config/s390/s390.c (init_alignment_context): Set
6795         ALIAS_SET_MEMORY_BARRIER on the MEM.
6796         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): Likewise.
6797
6798 2006-01-31  Uttam Pawar  <uttamp@us.ibm.com>
6799
6800         PR middle-end/25933
6801         * loop-unroll.c (unroll_loop_runtime_iterations): Free
6802         dom_bbs pointer.
6803         * tree-ssa-live.c (type_var_init): Allocate bitmap after
6804         call to tpa_init.
6805
6806 2006-01-31  Marcin Dalecki  <martin@dalecki.de>
6807
6808         * tree-vrp.c: Use XNEW/XCNEW allocation wrappers.
6809         * regrename.c: Ditto.
6810         * tree-ssa-loop-im.c: Ditto.
6811         * tree-dump.c: Ditto.
6812         * tree-complex.c: Ditto.
6813         * genrecog.c: Ditto.
6814         * tree-ssa-threadupdate.c: Ditto.
6815         * tracer.c: Ditto.
6816         * java/class.c: Ditto.
6817         * java/jcf-parse.c: Ditto.
6818         * java/resource.c: Ditto.
6819         * java/except.c: Ditto.
6820         * java/jvspec.c: Ditto.
6821         * java/jcf-write.c: Ditto.
6822         * java/jcf-path.c: Ditto.
6823         * java/gjavah.c: Ditto.
6824         * java/zextract.c: Ditto.
6825         * java/jcf-io.c: Ditto.
6826         * java/jcf.h: Ditto.
6827         * java/buffer.c: Ditto.
6828         * java/lang.c: Ditto.
6829         * java/parse-scan.y: Ditto.
6830         * java/lex.c: Ditto.
6831         * java/lex.h: Ditto.
6832         * cfgloopmanip.c: Ditto.
6833         * postreload-gcse.c: Ditto.
6834         * tree-ssa-loop-manip.c: Ditto.
6835         * postreload.c: Ditto.
6836         * tree-ssa-loop-ch.c: Ditto.
6837         * loop.c: Ditto.
6838         * ipa-cp.c: Ditto.
6839         * cppspec.c: Ditto.
6840         * diagnostic.c: Ditto.
6841         * final.c: Ditto.
6842         * genoutput.c: Ditto.
6843         * gcc.c: Ditto.
6844         * cfghooks.c: Ditto.
6845         * cfgloopanal.c: Ditto.
6846         * objc/objc-act.c: Ditto.
6847         * gcov.c: Ditto.
6848         * genextract.c: Ditto.
6849         * genautomata.c: Ditto.
6850         * pretty-print.c: Ditto.
6851         * genemit.c: Ditto.
6852         * cgraphunit.c: Ditto.
6853         * flow.c: Ditto.
6854         * df-scan.c: Ditto.
6855         * haifa-sched.c: Ditto.
6856         * dominance.c: Ditto.
6857         * dbxout.c: Ditto.
6858         * tree-ssa-loop-ivopts.c: Ditto.
6859         * df-core.c: Ditto.
6860         * mode-switching.c: Ditto.
6861         * modulo-sched.c: Ditto.
6862         * graph.c: Ditto.
6863         * ipa-pure-const.c: Ditto.
6864         * cse.c: Ditto.
6865         * fix-header.c: Ditto.
6866         * web.c: Ditto.
6867         * tree-stdarg.c: Ditto.
6868         * ipa-utils.c: Ditto.
6869         * loop-init.c: Ditto.
6870         * ipa-inline.c: Ditto.
6871         * cfganal.c: Ditto.
6872         * global.c: Ditto.
6873         * alloc-pool.c: Ditto.
6874         * dwarf2out.c: Ditto.
6875         * opts.c: Ditto.
6876         * genattrtab.c: Ditto.
6877         * tree-ssa-loop-ivcanon.c: Ditto.
6878         * predict.c: Ditto.
6879         * timevar.c: Ditto.
6880         * lcm.c: Ditto.
6881         * fortran/gfortranspec.c: Ditto.
6882         * regmove.c: Ditto.
6883         * local-alloc.c: Ditto.
6884         * langhooks.c: Ditto.
6885         * function.c: Ditto.
6886         * tree-vectorizer.c: Ditto.
6887         * gcse.c: Ditto.
6888         * ipa-type-escape.c: Ditto.
6889         * alias.c: Ditto.
6890         * tree-if-conv.c: Ditto.
6891         * profile.c: Ditto.
6892         * ipa.c: Ditto.
6893         * tree-data-ref.c: Ditto.
6894         * loop-unroll.c: Ditto.
6895         * treelang/treetree.c: Ditto.
6896         * calls.c: Ditto.
6897         * bt-load.c: Ditto.
6898         * ggc-common.c: Ditto.
6899         * except.c: Ditto.
6900         * coverage.c: Ditto.
6901         * cselib.c: Ditto.
6902         * tree-cfgcleanup.c: Ditto.
6903         * tree-ssa-pre.c: Ditto.
6904         * cfgcleanup.c: Ditto.
6905         * loop-invariant.c: Ditto.
6906         * loop-iv.c: Ditto.
6907         * ipa-prop.c: Ditto.
6908         * print-tree.c: Ditto.
6909         * conflict.c: Ditto.
6910         * ggc-page.c: Ditto.
6911         * sched-deps.c: Ditto.
6912         * regclass.c: Ditto.
6913         * tree-object-size.c: Ditto.
6914         * combine.c: Ditto.
6915         * bb-reorder.c: Ditto.
6916         * resource.c: Ditto.
6917         * var-tracking.c: Ditto.
6918         * cfgloop.c: Ditto.
6919         * df-problems.c: Ditto.
6920         * reg-stack.c: Ditto.
6921         * tlink.c: Ditto.
6922         * gccspec.c: Ditto.
6923         * sched-rgn.c: Ditto.
6924         * tree-ssa-structalias.c: Ditto.
6925         * tree-ssa-reassoc.c: Ditto.
6926         * config/darwin-c.c: Ditto.
6927         * config/darwin.c: Ditto.
6928         * config/arm/arm.c: Ditto.
6929         * cfgrtl.c: Ditto.
6930         * collect2.c: Ditto.
6931         * reload1.c: Ditto.
6932
6933 2006-01-31  Nicolas Pitre  <nico@cam.org>
6934
6935         * arm.md (smaxsi3): Make aware of smax_m1.
6936         (smax_m1): New.
6937
6938 2006-01-31  Nathan Sidwell  <nathan@codesourcery.com>
6939
6940         * gcc/config/m68k/lb1sf68.asm: Use moveq to load small constants.
6941
6942 2006-01-31  Richard Guenther  <rguenther@suse.de>
6943
6944         * doc/invoke.texi (-msselibm): Document.
6945         * target.h (expand_library_builtin): New target hook.
6946         * builtins.c (expand_builtin): Use expand_library_builtin.
6947         (default_expand_library_builtin): New function.
6948         * gcc.c (LINK_GCC_MATH_SPEC): Define.
6949         (LINK_COMMAND_SPEC): Handle %(link_gcc_math).
6950         (link_gcc_math_spec): Declare.
6951         (static_specs): Add link_gcc_math_spec.
6952         * expr.h (default_expand_library_builtin): Declare.
6953         * target-def.h (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
6954         (TARGET_INITIALIZER): Add TARGET_EXPAND_LIBRARY_BUILTIN.
6955         * config/i386/i386.h: Provide LINK_GCC_MATH_SPEC.
6956         * config/i386/i386.opt (msselibm): New target option.
6957         * config/i386/i386.c (ix86_builtin_function_variants): New array.
6958         (ix86_init_sse_abi_builtins): New function.
6959         (ix86_expand_library_builtin): Likewise.
6960         (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
6961         (override_options): Handle error conditions wrt -msselibm.
6962         (ix86_builtins): Add function codes for SSE2 ABI builtins.
6963         (ix86_init_builtins): Call ix86_init_sse_abi_builtins.
6964         * doc/extend.texi (__builtin_sse2_*): Document new target specific
6965         builtins.
6966
6967 2006-01-31  Richard Guenther  <rguenther@suse.de>
6968         Paolo Bonzini  <bonzini@gnu.org>
6969
6970         * doc/install.texi (--disable-libgcc-math): Document.
6971
6972 2006-01-30  Marcin Dalecki  <martin@dalecki.de>
6973
6974         * expr.h (expand_normal): new inline function.
6975         * builtins.c: use it, use EXPAND_NORMAL explicitely.
6976         * dojump.c: use it.
6977         * dwarf2out.c: use it.
6978         * expr.c: use it.
6979         * calls.c: use it.
6980         * expmed.c: use it.
6981         * except.c: use it.
6982         * config/sparc/sparc.c: use it.
6983         * config/i386/i386.c: use it.
6984         * config/rs6000/rs6000.c: use it.
6985         * config/arm/arm.c: use it.
6986         * config/mips/mips.c: use it.
6987         * stmt.c: use it, use EXPAND_NORMAL explicitely.
6988
6989 2006-01-30  Roger Sayle  <roger@eyesopen.com>
6990
6991         * config/i386/cygwin.h (GCC_DRIVER_HOST_INITIALIZATION): Cast
6992         argv to the appropriate type.
6993
6994 2006-01-30  Zdenek Dvorak <dvorakz@suse.cz>
6995
6996         * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Remove
6997         unreachable code.
6998
6999 2006-01-30  Ulrich Weigand  <uweigand@de.ibm.com>
7000
7001         PR target/26018
7002         * config/s390/s390.c (struct machine_function): New flag
7003         decomposed_literal_pool_addresses_ok_p.
7004         (s390_reorg): Set it before final stage of literal pool transforms.
7005         (s390_decompose_address): Only accept displacements of the form
7006         (minus (label_ref ...) (label_ref ...)) if that flag is set.
7007
7008 2006-01-30  Carlos O'Donell  <carlos@codesourcery.com>
7009
7010         * optabs.c (prepare_cmp_insn): If unbaised and unsigned then bias
7011         the comparison routine return.
7012
7013 2006-01-30  Michael Matz  <matz@suse.de>
7014
7015         * global.c (find_reg): Only evict for global regs.
7016         Take n_refs into account and dump more info.
7017
7018 2006-01-30  J"orn Rennecke <joern.rennecke@st.com>
7019
7020         PR target/14798:
7021         * sh.c (pragma_interrupt, trap_exit, sp_switch): Remove variable.
7022         (pragma_trap, pragma_nosave_low_regs): Likewise.
7023         (current_function_anonymous_args): Likewise.
7024         (sh_deferred_function_attributes): New variable.
7025         (sh_deferred_function_attributes_tail): Likewise.
7026         (print_operand): For '@', look up trap_exit attribute.
7027         (calc_live_regs): Look up trapa_handler attribute.  For trapa
7028         handlers, save/restore fpscr, but don't do any other
7029         interrupt-specific saves.
7030         Don't save r0..r7 if the nosave_low_regs attribute is in effect.
7031         Fix check for partially saved registers to check for SHmedia.
7032         (sh_expand_prologue, sh_expand_epilogue): Look up sp_switch attribute.
7033         (sh_output_function_epilogue): Don't clear any of the removed
7034         variables.
7035         (sh_insert_attributes): Don't check pragma_interrupt.
7036         Insert deferred attributes.  Check that interrupt attribute is
7037         present for other attributes that require its presence.
7038         (sh_attribute_table): Add new attributes trapa_handler and
7039         nosave_low_regs.
7040         (sh_handle_sp_switch_attribute, sh_handle_trap_exit_attribute):
7041         Don't check for pragma_interrupt.  Don't store argument.
7042         * sh.h (pragma_interrupt, sp_switch): Don't declare.
7043         (sh_deferred_function_attributes): Declare.
7044         (sh_deferred_function_attributes_tail): Likewise.
7045         * sh.md (sp_switch_1): Add operand.  Change generator caller.
7046         (sh_pr_interrupt, sh_pr_trapa, sh_pr_nosave_low_regs): Remove.
7047         (*return_i): Don't use when trap_exit attribute is in effect.
7048         (*return_trapa): New insn pattern.
7049         * sh-c.c: New file.
7050         * config.gcc (sh[123456ble]*-* | sh-*-*): New trailer stanza,
7051         setting c_target_objs and cxx_target_objs.
7052         * t-sh: Add rule for sh-c.o.
7053
7054 2006-01-30  Richard Guenther  <rguenther@suse.de>
7055
7056         PR c++/23372
7057         * gimplify.c (gimplify_target_expr): Handle easy cases
7058         without creating a temporary.
7059
7060 2006-01-30  Nathan Sidwell  <nathan@codesourcery.com>
7061
7062         * vec.h (safe_grow): Remove duplicated line.
7063
7064 2006-01-29  Diego Novillo  <dnovillo@redhat.com>
7065
7066         PR 25874
7067         * omp-low.c (execute_expand_omp): Move CFG cleanup code ...
7068         (expand_omp): ... here.
7069         (expand_omp_parallel): Only remove barriers for combined
7070         parallel+workshare constructs.
7071
7072 2006-01-29  Eric Botcazou  <ebotcazou@adacore.com>
7073
7074         Revert
7075
7076         2005-11-09  Eric Botcazou  <ebotcazou@adacore.com>
7077         * tree.c (build_qualified_type): Chain the new type to the original
7078         type's TYPE_NEXT_PTR_TO or TYPE_NEXT_REF_TO linked lists if it is
7079         a POINTER_TYPE or a REFERENCE_TYPE respectively.
7080         (build_pointer_type_for_mode): Only return unqualified types.
7081         (build_reference_type_for_mode): Likewise.
7082
7083 2006-01-29  Gabriel Dos Reis  <gdr@integgrable-solutions.net>
7084
7085         * configure.ac (cxx_compat_warn): Set if -Wc++-compat is supported.
7086         * Makefile.in (CXX_COMPAT_WARN): Define.
7087         * configure: Regenerate.
7088
7089 2006-01-29  Dorit Nuzman  <dorit@il.ibm.com>
7090
7091         PR tree-opt/25911
7092         * tree-vect-patterns.c (vect_recog_dot_prod_pattern): Change assert
7093         to an if check.
7094
7095 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
7096
7097         * toplev.c: Fix thinko.
7098
7099 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
7100             Marcin Dalecki  <martin@dalecki.de>
7101
7102         * toplev.c (floor_log2, exact_log2): Don't define if __cplusplus.
7103         (push_srcloc): Use XNEW.
7104         (init_asm_output, default_get_pch_validity): Use XNEWVEC.
7105
7106 2006-01-29  Kenneth Zadeck <zadeck@naturalbridge.com>
7107
7108         * df-core.c (df_set_blocks): Deleted all variable.
7109
7110 2006-01-28  Ian Lance Taylor  <ian@airs.com>
7111
7112         * cgraphunit.c (cgraph_assemble_pending_functions): Call
7113         cgraph_output_pending_asms.
7114
7115 2006-01-28  Zack Weinberg  <zackw@panix.com>
7116
7117         * c.opt: Add -W(no-)overlength-strings.
7118         * doc/invoke.texi: Document it.
7119         * c-opts.c (c_common_handle_option): -pedantic implies
7120         -Woverlength-strings, if not explicitly disabled already.
7121         (c_common_post_options): -Woverlength-strings defaults to off, and
7122         is always off for C++.
7123         * c-common.c (fix_string_type): Issue warning about strings longer
7124         than is portable only if warn_overlength_strings.  Rearrange code
7125         a little for clarity.
7126         * configure.in: Check for -Wno-overlength-strings as well before
7127         enabling -pedantic in stage 1.
7128         * Makefile.in (STRICT2_WARN): Add -Wno-overlength-strings.
7129         (gcc.o-warn, insn-automata.o-warn, build/gencondmd.o-warn): Delete.
7130
7131         * genconditions.c (write_header, write_one_condition)
7132         (write_conditions, write_writer): Consolidate very long strings
7133         that were broken up to fit in C89 portable limit.  Don't use
7134         printf when fputs will do.
7135
7136 2006-01-28  Adam Nemet  <anemet@caviumnetworks.com>
7137
7138         * combine.c (simplify_comparison <AND>): Check
7139         TRULY_NOOP_TRUNCATION before start using a subreg.
7140
7141         * config/mips/mips.md (*branch_zero<mode>,
7142         *branch_zero<mode>_inverted, *branch_equality<mode>,
7143         *branch_equality<mode>_inverted, *branch_equality<mode>_mips16):
7144         Remove mode check from comparisons.
7145
7146 2006-01-28  Kenneth Zadeck <zadeck@naturalbridge.com>
7147
7148         * config/mips/mips-protos.h (mips_set_live_on_entry): Deleted.
7149
7150 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
7151
7152         * expmed.c (const_mult_add_overflow_p): Remove.
7153         * expr.h: Remove the prototype for const_mult_add_overflow_p.
7154
7155         * recog.c (validate_replace_rtx_subexp): Remove.
7156         * recog.h: Remove the prototype for
7157         validate_replace_rtx_subexp.
7158
7159         * integrate.h: Remove the prototype for
7160         copy_decl_for_inlining.
7161         * rtl.h: Remove the prototype for mark_constant_function.
7162         * tree-vectorizer.h: Remove the prototype for
7163         vect_strip_conversion.
7164
7165         * modulo-sched.c (create_partial_schedule,
7166         free_partial_schedule, reset_partial_schedule): Make them
7167         static.
7168
7169         * hooks.c (hook_bool_rtx_int_false): Remove.
7170         * hooks.h: Remove the prototype for hook_bool_rtx_int_false.
7171
7172 2006-01-28  David Edelsohn  <edelsohn@gnu.org>
7173
7174         * config/rs6000/aix43.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
7175         and -mlong-double-128 are incompatible.
7176         * config/rs6000/aix52.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
7177         * config/rs6000/t-aix43 (LIB2FUNCS_EXTRA): Add ppc64-fp.c.
7178         (TARGET_LIBGCC2_CFLAGS): Define.
7179         * config/rs6000/t-aix52 (LIB2FUNCS_EXTRA): Same.
7180         (TARGET_LIBGCC2_CFLAGS): Same.
7181         * config/rs6000/ppc64-fp.c: Compile for 64-bit AIX.
7182
7183 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
7184
7185         PR c/19606.
7186         * c-typeck.c (build_binary_op): Perform implicit casts of
7187         operands before shortening them.
7188
7189         * cfgloopmanip.c (split_loop_bb): Remove.
7190         * cfgloop.h: Remove the prototype for split_loop_bb.
7191
7192         * cfgloop.c (flow_loop_outside_edge_p): Remove.
7193         * cfgloop.h: Remove the prototype for
7194         flow_loop_outside_edge_p.
7195
7196         * emit-rtl.c (init_virtual_regs): Make it static.
7197         * function.h: Remove the prototype for init_virtual_regs.
7198
7199         * recog.c (peephole2_optimize): Make it static.
7200         * recog.h: Remove the prototype for peephole2_optimize.
7201
7202 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
7203
7204         * df-scan.c (df_record_entry_block_defs): Check if
7205         INCOMING_RETURN_ADDR_RTX is defined.
7206
7207 2006-01-27  Daniel Berlin  <dberlin@dberlin.org>
7208             Kenneth Zadeck <zadeck@naturalbridge.com>
7209
7210         PR rtl-optimization/24762
7211         * doc/tm.texi: Added TARGET_EXTRA_LIVE_ON_ENTRY.
7212         * targhooks.c (hook_void_bitmap): New hook prototype.
7213         * targhoohs.h (hook_void_bitmap): Ditto.
7214         * bitmap.h (bitmap_head_def): Moved to coretypes.h.
7215         * coretypes.h (bitmap_head_def): Moved from bitmap.h.
7216         * target.h (live_on_entry): New function pointer.
7217         * df-scan.c (df_all_hard_regs): Removed.
7218         (df_scan_dump, df_hard_reg_init): Removed df_all_hard_regs.
7219         (df_scan_free_internal): Added df->entry_block_defs.
7220         (df_scan_alloc): Ditto.
7221         (df_scan_dump): Ditto.
7222         (df_uses_record): Plumbed flag field properly thru calls.
7223         Record EH_RETURN_DATA_REGNO in eh blocks unconditionally.
7224         This part fixes PR24762.
7225         (df_bb_refs_record): Added code to make the frame and arg
7226         pointers live in EH blocks.
7227         (df_refs_record): Added call to df_record_entry_block_defs.
7228         (df_record_entry_block_defs): New function.
7229         * df-core.c: Added comments to describe new artifical defs.
7230         * df.h (DF_REF_DIES_AFTER_THIS_USE): New flag in enum df_ref_flags.
7231         (entry_block_defs): New field in struct df.
7232         (df_all_hard_regs): Deleted.
7233         * target-def.h: Added TARGET_EXTRA_LIVE_ON_ENTRY.
7234         * df-problems.c (df_ru_bb_local_compute_process_def):
7235         Added code to handle artifical defs in the entry to a function.
7236         (df_ru_bb_local_compute): Ditto.
7237         (df_rd_bb_local_compute_process_def):  Ditto.
7238         (df_rd_bb_local_compute): Ditto.
7239         (df_lr_bb_local_compute): Ditto.
7240         (df_ur_bb_local_compute): Ditto.
7241         (df_urec_bb_local_compute):  Ditto.
7242         (df_chain_create_bb):  Ditto.
7243         (df_ur_local_finalize): Removed entry.
7244         (df_urec_init): Ditto.
7245         (df_urec_local_finalize): Ditto.
7246         (df_ri_bb_compute): Added detection of last use of pseudos.
7247         * Makefile.in (df-scan.o): Updated dependencies.
7248         * config/mips/mips-protos.h (mips_set_live_on_entry): Added.
7249         * config/mips/mips.c (mips_set_live_on_entry): Added.
7250         * config/mips/mips.c (TARGET_EXTRA_LIVE_ON_ENTRY): Added value
7251         for target hook.
7252         * dce.c (marked_insn_p): Added code to handle artifical defs.
7253
7254 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
7255
7256         * config/i386/emmintrin.h (_mm_cvtsd_f64): Add missing Intel
7257         intrinsic.
7258         (_mm_cvtsi128_si64): Likewise.
7259         (_mm_cvtsd_si64): Likewise.
7260         (_mm_cvttsd_si64): Likewise.
7261         (_mm_cvtsi64_sd): Likewise.
7262         (_mm_cvtsi64_si128): Likewise.
7263         * config/i386/mmintrin.h (_m_from_int64): Likewise.
7264         (_mm_cvtsi64_m64): Likewise.
7265         (_m_to_int64): Likewise.
7266         (_mm_cvtm64_si64): Likewise.
7267         * config/i386/xmmintrin.h (_mm_cvtss_si64): Likewise.
7268         (_mm_cvttss_si64): Likewise.
7269         (_mm_cvtsi64_ss): Likewise.
7270         (_mm_cvtss_f32): Likewise.
7271
7272 2006-01-27  Carlos O'Donell  <carlos@codesourcery.com>
7273
7274         * c-pragma.c (init_pragma) : Call c_register_pragma_with_expansion
7275         for pragma redefine_extname.
7276
7277 2006-01-27  Jakub Jelinek  <jakub@redhat.com>
7278
7279         PR target/25864
7280         * libgcc-std.ver: Add GCC_4.1.0 symbol version.
7281         * config/rs6000/t-linux64 (TARGET_LIBGCC2_CFLAGS): Only append
7282         -mno-minimal-toc to previous content.
7283         (bispecs): Remove goal.
7284         * config/rs6000/ppc64-fp.c: Define TMODES before including fp-bit.h.
7285         * config/rs6000/darwin-ldouble.c: Don't provide _xlq*@GCC_3.4
7286         compatibility aliases on powerpc-*-*gnu*.
7287         * config/rs6000/libgcc-ppc-glibc.ver: New file.
7288         * config/rs6000/t-ppccomm (SHLIB_MAPFILES): Append
7289         libgcc-ppc-glibc.ver on powerpc*-*-*gnu*.
7290         (TARGET_LIBGCC2_CFLAGS): Append -specs=ldblspecs.
7291         (ldblspecs): New goal.
7292         * config/rs6000/t-linux64 (SHLIB_MAPFILES): Removed.
7293         * mklibgcc.in: If $TPBIT is empty, don't compile _sf_to_tf and
7294         _df_to_tf.
7295         * config/fp-bit.h (TMODES): Don't define if none of TFLOAT,
7296         L_sf_to_tf or L_df_to_tf is defined.
7297
7298 2006-01-27  David Edelsohn  <edelsohn@gnu.org>
7299             Alan Modra  <amodra@bigpond.net.au>
7300
7301         PR target/25864
7302         * config/rs6000/linux.h (POWERPC_LINUX): Define.
7303         * config/rs6000/linux64.h (POWERPC_LINUX): Define.
7304         * config/rs6000/darwin-ldouble.c: Build on 32-bit PowerPC.
7305         * config/rs6000/darwin.h (TARGET_IEEEQUAD): Define to zero.
7306         * config/rs6000/aix.h (TARGET_IEEEQUAD): Define to zero.
7307         * config/rs6000/rs6000.c (rs6000_ieeequad): New variable.
7308         (rs6000_override_options): Initialize rs6000_ieeequad.
7309         Initialize TFmode format to ibm_extended_format if not
7310         TARGET_IEEEQUAD.
7311         (rs6000_handle_option): Accept -mabi= ibmlongdouble and
7312         ieeelongdouble.
7313         (rs6000_emit_move): Move !TARGET_IEEEQUAD as two parts.
7314         (rs6000_return_in_memory): Only return IEEEQUAD in memory.
7315         (function_arg_advance): IBM long double passed in two FPRs, not
7316         split.
7317         (function_arg): IBM long double passed in FPRs.
7318         (rs6000_pass_by_reference): Only IEEEQUAD passed by reference.
7319         (rs6000_gimplify_va_arg): IBM long double passed in two FPRs.
7320         Only multireg GPR aligned.
7321         (rs6000_init_libfuncs): Enable IBM long double functions if not
7322         IEEEQUAD.
7323         (rs6000_generate_compare): Use IBM long double compare if not
7324         TARGET_IEEEQUAD.
7325         * config/rs6000/rs6000.h (rs6000_ieeequad): Declare.
7326         (TARGET_IEEEQUAD): Define.
7327         (CANNOT_CHANGE_MODE_CLASS): Any mode larger than doubleword if
7328         not TARGET_IEEEQUAD.
7329         * config/rs6000/rs6000.md: Enable TFmode patterns if
7330         !TARGET_IEEEQUAD.
7331         * config/rs6000/t-ppccomm (LIB2FUNCS_EXTRA): Add darwin-ldouble.c.
7332         * config/rs6000/svr4.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
7333         and -mlong-double-128 are incompatible.
7334         * doc/invoke.texi (-mabi): Collect options together.  Add
7335         ibmlongdouble and ieeelongdouble.
7336
7337 2006-01-27  Richard Sandiford  <richard@codesourcery.com>
7338
7339         * doc/rtl.texi (SYMBOL_REF_DATA): Adjust documentation for new
7340         opaque type.
7341         * optabs.c (init_one_libfunc): Use SET_SYMBOL_REF_DECL.
7342         * varasm.c (make_decl_rtl, build_constant_desc): Likewise.
7343         (force_const_mem): Use SET_SYMBOL_REF_CONSTANT.
7344         * rtl.h (rtunion_def): Remove rt_ptr.
7345         (X0PTR): Delete.
7346         (SYMBOL_REF_DATA): Use X0ANY instead of X0PTR.
7347         (SET_SYMBOL_REF_DECL, SET_SYMBOL_REF_CONSTANT): New macros.
7348         * config/i386/winnt.c (i386_pe_mark_dllexport)
7349         (i386_pe_mark_dllimport): Use SET_SYMBOL_REF_DECL.
7350
7351 2006-01-27 Gabor Loki <loki@gcc.gnu.org>
7352
7353         * cfgcleanup.c (try_crossjump_to_edge): Fix comment typo.
7354
7355 2006-01-26 Alexandre Oliva  <aoliva@redhat.com>
7356
7357         PR other/24829
7358         PR target/24831
7359         * gthr-dce.h: Do not gthrw-ify pthread_once_init,
7360         pthread_key_delete.  From John David Anglin.  gthrw-ify
7361         pthread_getunique_np only if it it's not a macro.  Delete
7362         UNUSED macro.
7363         (__gthread_objc_condition_allocate, __gthread_objc_condition_deallocate,
7364         __gthread_objc_condition_wait, __gthread_objc_condition_broadcast,
7365         __gthread_objc_condition_signal, __gthread_key_delete): Add
7366         "__attribute__ ((__unused__))" to unused arguments.
7367         (__gthread_recursive_mutex_init_function): Add missing return.
7368         * gthr-dce.h, gthr-tpf.h, gthr-solaris.h, gthr-posix.h,
7369         gthr-posix95.h: Use macro-based approach for name redirection
7370         on targets missing weakref.
7371
7372 2006-01-26  Zack Weinberg  <zackw@panix.com>
7373
7374         * genconditions.c (write_header): In generated code, #ifdef out
7375         all includes and fake declarations, except includes of bconfig.h
7376         and system.h, unless GCC_VERSION >= 3001.  Do not include
7377         gensupport.h in any case.
7378         (write_conditions): Generate a definition of struct c_test.  Add
7379         a comment to the generated #endif.
7380         (write_one_condition): Escape backslashes in string too.
7381         (write_writer): Generated code must escape backslashes and quote
7382         marks (but not newlines) in the strings it writes.
7383         * Makefile.in (build/gencondmd.o): Update dependencies.
7384
7385 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
7386
7387         PR target/25961
7388         * Makefile.in (insn-automata.o): Add header file dependencies.
7389         * genautomata.c: Add includes.
7390
7391 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
7392
7393         PR target/25961
7394         * Makefile.in (insn-automata.o): Add -Wno-error flag.
7395
7396 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
7397
7398         * configure.ac: Expect target tools paths to be passed from the toplevel
7399         and wrap the detection into AS_SET_VAR_IF.  Extract side-effects out of
7400         AS_SET_VAR_IF.
7401         * acinclude.m4 (gcc_AC_TOOL_DIRS, gcc_AC_CHECK_TOOL): Remove.
7402
7403 2006-01-26  Alexandre Oliva  <aoliva@redhat.com>
7404
7405         PR c/25892
7406         * c.opt (Wpointer-sign): Init to -1.
7407         * c-opts.c (c_common_handle_option): Set to 1 on OPT_Wall and
7408         OPT_pedantic, to 0 otherwise.
7409         * doc/invoke.texi: Update.
7410
7411 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
7412
7413         * config/i386/i386.md (extendsfdf2, extendsfxf2, extenddfxf2): Emit
7414         constants provided by 80387 instructions in the destination mode.
7415
7416 2006-01-26  Richard Guenther  <rguenther@suse.de>
7417             Andrew Pinski  <pinskia@physics.uc.edu>
7418
7419         PR tree-opt/21470
7420         partial PR tree-opt/17064
7421         * tree-ssa-structalias.c (intra_create_variable_infos):
7422         Create heap variables for incoming parameters if
7423         flag_argument_noalias > 1.
7424         (find_what_p_points_to): Look through default defs of
7425         parameter decls.
7426
7427 2006-01-26  Jeff Law  <law@redhat.com>
7428
7429         PR ada/25900
7430         * tree-vrp.c (extract_range_from_assert): When merging a VR_RANGE
7431         with a VR_ANTI_RANGE and the VR_ANTI_RANGE is completely contained
7432         within the VR_RANGE, use the VR_RANGE as the result, not the
7433         VR_ANTI_RANGE.
7434         (adjust_range_with_scev): Reject ranges from SCEV which are out of
7435         bounds for the type.
7436
7437 2006-01-26  Daniel Berlin  <dberlin@dberlin.org>
7438
7439         * tree-ssa-alias.c (maybe_create_global_var): Change
7440         subvar walking to an assertion that we don't have subvar'd variables.
7441
7442 2006-01-26  Andrew Pinski  <pinskia@physics.uc.edu>
7443
7444         PR C/25861
7445         * c-common.c (c_common_truthvalue_conversion) <case ADDR_EXPR>:
7446         Use a new variable, inner.  PARM_DECLs are always non-weak.
7447
7448 2006-01-26  Shantonu Sen  <ssen@opendarwin.org>
7449
7450         * tree.h (OMP_CLAUSE_SUBCODE_CHECK): Add definition for
7451         --disable-checking.
7452
7453 2006-01-26  Adam Nemet  <anemet@caviumnetworks.com>
7454
7455         * config/mips/mips.md (*clear_upper32): New combiner pattern.
7456
7457 2006-01-26  Richard Earnshaw  <richard.earnshaw@arm.com>
7458
7459         * arm.md (smaxsi3, sminsi3): Convert to define_expand.
7460         (smax_insn, smin_insn, smax_0, smin_0): New.
7461
7462 2006-01-26  Hans-Peter Nilsson  <hp@axis.com>
7463
7464         PR target/25947
7465         * config/cris/cris.c (cris_order_for_addsi3): New function.
7466         * config/cris/cris-protos.h: Prototype it.
7467         * config/cris/cris.md (split for "move.S1 [rx=rx+i],ry")
7468         (split for "move.S1 ry,[rx=rx+i]", split for "clear.[bwd] [rx=rx+i]")
7469         (split for "mov(s|u).S1 [rx=rx+i],ry", split for "op.S1 [rx=rx+i],ry")
7470         (split for "op.S1 [rx=rx+i],ry (swapped)")
7471         (split for "op(s|u).S1 [rx=rx+i],ry")
7472         (split for "op(s|u).S1 [rx=rx+i],ry (swapped, plus or bound)"):
7473         Apply cris_order_for_addsi3 when generating addsi3 insns.
7474
7475 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
7476
7477         * tree.h (TREE_RANGE_CHECK): Fix range predicate.
7478         (TREE_BLOCK): Add call to EXPR_CHECK.
7479
7480 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
7481
7482         PR 25886
7483         * tree-dump.c (dequeue_and_dump): Handle OMP_CLAUSE.
7484         * tree-pretty-print.c (dump_omp_clause): Extract from ...
7485         (dump_omp_clauses): ... here.
7486         (dump_generic_node): Handle OMP_CLAUSE.
7487         * tree.c (omp_clause_num_ops): New.
7488         (omp_clause_code_name): New.
7489         (tree_code_size): Handle OMP_CLAUSE.
7490         (tree_size): Likewise.
7491         (make_node): Document handling of OMP_CLAUSE.
7492         (tree_node_structure): Handle OMP_CLAUSE.
7493         (omp_clause_check_failed): New.
7494         (omp_clause_range_check_failed): New.
7495         (omp_clause_operand_check_failed): New.
7496         (build_omp_clause): New.
7497         (walk_tree): Adjust handling of OMP_CLAUSE_* nodes.
7498         * tree.h (enum omp_clause_code): Declare.
7499         (OMP_CLAUSE_SUBCODE_CHECK): Define.
7500         (OMP_CLAUSE_RANGE_CHECK): Define.
7501         (OMP_CLAUSE_ELT_CHECK): Define.
7502         (omp_clause_check_failed): Declare.
7503         (omp_clause_operand_check_failed): Declare.
7504         (omp_clause_range_check_failed): Declare.
7505         (OMP_CLAUSE_CHAIN): Do not use TREE_RANGE_CHECK.
7506         (OMP_CLAUSE_OPERAND): Use OMP_CLAUSE_RANGE_CHECK.
7507         (OMP_CLAUSE_PRIVATE_DEBUG): Use OMP_CLAUSE_SUBCODE_CHECK.
7508         (OMP_CLAUSE_LASTPRIVATE): Likewise.
7509         (OMP_CLAUSE_IF_EXPR): Likewise.
7510         (OMP_CLAUSE_NUM_THREADS_EXPR): Likewise.
7511         (OMP_CLAUSE_SCHEDULE_CHUNK_EXPR): Likewise.
7512         (OMP_CLAUSE_REDUCTION_CODE): Likewise.
7513         (OMP_CLAUSE_REDUCTION_INIT): Likewise.
7514         (OMP_CLAUSE_REDUCTION_MERGE): Likewise.
7515         (OMP_CLAUSE_REDUCTION_PLACEHOLDER): Likewise.
7516         Use tree_node.omp_clause.subcode instead of TREE_COMPLEXITY.
7517         (OMP_CLAUSE_SCHEDULE_KIND): Likewise.
7518         (OMP_CLAUSE_DEFAULT_KIND): Likewise.
7519         (OMP_CLAUSE_CODE): Define.
7520         (OMP_CLAUSE_SET_CODE): Define.
7521         (OMP_CLAUSE_CODE): Define.
7522         (OMP_CLAUSE_OPERAND): Define.
7523         (struct tree_omp_clause): Declare.
7524         (union tree_node): Add field 'omp_clause'.
7525         * treestruct.def (TS_OMP_CLAUSE): Define.
7526         * tree.def (OMP_CLAUSE_PRIVATE, OMP_CLAUSE_SHARED
7527         OMP_CLAUSE_FIRSTPRIVATE, OMP_CLAUSE_LASTPRIVATE,
7528         OMP_CLAUSE_REDUCTION, OMP_CLAUSE_COPYIN,
7529         OMP_CLAUSE_COPYPRIVATE, OMP_CLAUSE_IF,
7530         OMP_CLAUSE_NUM_THREADS, OMP_CLAUSE_SCHEDULE,
7531         OMP_CLAUSE_NOWAIT, OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Remove.
7532         (OMP_CLAUSE): Define.
7533         * print-tree.c (print_node): Handle OMP_CLAUSE.
7534         * omp-low.c: Adapt all uses of OMP_CLAUSE_* nodes.
7535         * c-typeck.c: Likewise.
7536         * gimplify.c: Likewise.
7537         * c-omp.c: Likewise.
7538         * tree-nested.c: Likewise.
7539         * tree-inline.c: Likewise.
7540         * c-parser.c: Likewise.
7541         * gimple-low.c (lower_omp_directive): Do not set TREE_BLOCK on
7542         clauses.
7543
7544 2006-01-25  Roger Sayle  <roger@eyesopen.com>
7545
7546         PR rtl-optimization/25703
7547         * combine.c (try_combine): Handle zero_extract and strict_low_part
7548         of non-lowpart SUBREGs for constant reg_subword_p set optimization.
7549
7550 2006-01-25  Peter Bergner  <bergner@vnet.ibm.com>
7551
7552         * global.c: Fix comment typos.
7553
7554 2006-01-25  Andrew Pinski  <pinskia@physics.uc.edu>
7555
7556         PR target/25758
7557         * config/i386/i386.c (output_pic_addr_const) <case SYMBOL_REF>:
7558         Use output_addr_const instead of assemble_name.
7559
7560 2006-01-25  Paolo Bonzini  <bonzini@gnu.org>
7561
7562         * Makefile.in (sched-vis.o): Update dependencies.
7563         * haifa-sched.c (sched_finish): Clear current_sched_info.
7564         * cfg.c (dump_bb_info): New, split from dump_flow_info.
7565         (dump_flow_info): Call it.
7566         * passes.c (execute_todo): Call print_rtl_slim_with_bb to make
7567         a slim RTL dump.
7568         * basic-block.h (dump_bb_info): Declare.
7569         * tree-dump.c (dump_enable_all): OR the flags of a -fdump-tree-all
7570         option, and apply options only for dump files whose TDF_RTL,
7571         TDF_TREE, or TDF_IPA bits match.
7572         * rtl.h: Declare new functions exported from sched-vis.c.
7573         * sched-vis.c: Enable also if scheduling is not used.
7574         (print_value): Print the mode of registers if not inside scheduling.
7575         (print_insn): Make it work outside the scheduler.  Beautify the output
7576         a bit.
7577         (dump_insn_slim, debug_insn_slim, print_rtl_slim_with_bb): New.
7578
7579 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
7580
7581         * doc/rtl.texi (SYMBOL_REF_CONSTANT, SYMBOL_REF_DATA): Document.
7582         * gengtype.c (adjust_field_rtx_def): Garbage-collect field 2 of
7583         a SYMBOL_REF as either a tree or a constant_descriptor_rtx,
7584         depending on the value of CONSTANT_POOL_ADDRESS_P.
7585         * optabs.c (init_one_libfunc): Nullify SYMBOL_REF_DATA rather than
7586         SYMBOL_REF_DECL.
7587         * varasm.c (make_decl_rtl, build_constant_desc): Set SYMBOL_REF_DATA
7588         rather than SYMBOL_REF_DECL.
7589         (rtx_constant_pool): Remove const_rtx_sym_htab.
7590         (const_desc_rtx_sym_hash, const_desc_rtx_sym_eq): Delete.
7591         (init_varasm_status): Don't initialize const_rtx_sym_htab.
7592         (force_const_mem): Point SYMBOL_REF_DATA to the constant pool entry.
7593         Remove handling of const_rtx_sym_htab.
7594         (find_pool_constant): Delete.
7595         (get_pool_constant, get_pool_constant_mark): Use SYMBOL_REF_CONSTANT
7596         rather than find_pool_constant.
7597         (get_pool_constant_for_function): Delete.
7598         (get_pool_mode, mark_constant): Use SYMBOL_REF_CONSTANT rather than
7599         find_pool_constant.
7600         * rtl.h (rtunion_def): Add rt_constant and rt_ptr fields.
7601         (X0CONSTANT, X0PTR, SYMBOL_REF_DATA): New macros.
7602         (SYMBOL_REF_DECL): Return NULL if CONSTANT_POOL_ADDRESS_P.
7603         (SYMBOL_REF_CONSTANT): New macro.
7604         (get_pool_constant_for_function): Delete.
7605         * config/i386/winnt.c (i386_pe_mark_dllexport): Set SYMBOL_REF_DATA
7606         rather than SYMBOL_REF_DECL.
7607         (i386_pe_mark_dllimport): Likewise.
7608         * config/rs6000/rs6000.c (rs6000_emit_move): Copy SYMBOL_REF_DATA
7609         rather than SYMBOL_REF_DECL.
7610         * config/darwin.c (machopic_indirect_data_reference): Likewise.
7611         (machopic_indirect_call_target): Likewise.
7612
7613 2006-01-25  Eric Botcazou  <ebotcazou@adacore.com>
7614
7615         * flow.c (delete_noop_moves): Add missing EOL to dump message.
7616
7617 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
7618
7619         * genattrtab.c (gen_bypass): Allow bypasses to contain whitespace.
7620
7621 2006-01-25  Kaz Kojima  <kkojima@gcc.gnu.org>
7622
7623         * config/sh/predicates.md (sh_register_operand): Accept CONST_DOUBLE.
7624
7625 2006-01-24  David Daney  <ddaney@avtrex.com>
7626
7627         PR java/25816
7628         * configure.ac (enable_tls): New enable option.
7629         (HAVE_AS_TLS): Don't do assembler check if enable_tls set.
7630         * configure: Regenerate.
7631         * doc/install.texi (--enable-tls): Document new option.
7632         (--disable-tls): Ditto.
7633
7634 2006-01-24  Richard Henderson  <rth@redehat.com>
7635
7636         * alias.h (ALIAS_SET_MEMORY_BARRIER): New.
7637         * alias.c (true_dependence): Respect it.
7638         (canon_true_dependence, write_dependence_p): Likewise.
7639         * builtins.c (get_builtin_sync_mem): Set it.
7640
7641 2006-01-25  Zdenek Dvorak <dvorakz@suse.cz>
7642
7643         * loop-iv.c (iv_analysis_loop_init): Use df analysis in a more
7644         efficient way.
7645
7646 2006-01-24  DJ Delorie  <dj@redhat.com>
7647
7648         * expmed.c (store_bit_field): Don't arbitrarily deny using insv
7649         for storing constants in single-bit bitfields.
7650
7651 2006-01-25  Ben Elliston  <bje@au.ibm.com>
7652
7653         * dfp.c (dfp_byte_swap): Use uint32_t and not unsigned long.
7654
7655 2006-01-24  Andrew Pinski  <pinskia@physics.uc.edu>
7656
7657         PR tree-opt/25860
7658         * tree-ssa-pre.c (phi_translate): Return NULL
7659         for AGGREGATE_TYPE's.
7660
7661 2006-01-24  Zack Weinberg  <zackw@panix.com>
7662
7663         * genautomata.c (process_state_for_insn_equiv_partition):
7664         Use xcalloc for insn_arcs_array.
7665         * vec.h (DEF_VEC_ALLOC_FUNC_I): New set of templates.
7666         (DEF_VEC_ALLOC_I): Use it, not DEF_VEC_ALLOC_FUNC_P.
7667
7668 2006-01-24  Richard Henderson  <rth@redhat.com>
7669
7670         * genextract.c (VEC_safe_set_locstr): Take VEC by reference;
7671         update all callers.
7672
7673 2006-01-23  Paolo Bonzini  <bonzini@gnu.org>
7674
7675         PR rtl-optimization/25890
7676         PR rtl-optimization/25905
7677         * combine.c (expand_compound_operation, expand_field_assignment):
7678         Fail if the bitfield's final position is out of bounds.
7679
7680 2006-01-24  Ian Lance Taylor  <ian@airs.com>
7681
7682         PR middle-end/25930
7683         * cgraphunit.c (cgraph_output_in_order): Don't clear
7684         cgraph_asm_nodes until after asm strings have been output.
7685
7686 2006-01-23  Adam Nemet  <anemet@caviumnetworks.com>
7687
7688         * fix-header.c (read_scan_file): Add new parameter imultilib when
7689         calling register_include_chains.
7690
7691 2006-01-23  Diego Novillo  <dnovillo@redhat.com>
7692
7693         * omp-low.c: Update documentation.
7694
7695 2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
7696             Daniel Berlin  <dberlin@dberlin.org>
7697
7698         PR tree-opt/25315
7699         PR tree-opt/25857
7700         * tree-ssa-pre.c (insert_extra_phis): If an incomming edge is abnormal
7701         return from the function.
7702
7703 2006-01-22  Zack Weinberg  <zackw@panix.com>
7704
7705         * rtl.def (match_code): Add second argument.
7706         * genpreds.c (write_extract_subexp): New function.
7707         (write_match_code): Add path argument.  Use write_extract_subexp.
7708         (write_predicate_expr): Pass path to write_match_code.
7709         (mark_mode_tests): MATCH_CODE applied to a subexpression does
7710         not perform a mode test.
7711         * genrecog.c (compute_predicate_codes): MATCH_CODE applied to
7712         a subexpression does not constrain the top-level code set.
7713         * read-rtl.c (read_rtx_variadic): New function.
7714         (read_rtx_1): Use it; allow AND and IOR to be variadic.
7715         * doc/md.texi: Document new notation.
7716         * config/i386/predicates.md (cmpsi_operand_1): Fold into ...
7717         (cmpsi_operand): ... here, using new notation.
7718
7719 2006-01-22  Zack Weinberg  <zackw@panix.com>
7720
7721         * varray.c: Remove GENERATOR_FILE #ifdefs.
7722
7723 2006-01-22  Zack Weinberg  <zackw@panix.com>
7724
7725         * genautomata.c (output_reserved_units_table): Emit nothing if
7726         description->query_units_num is zero.  Remove extra blank line.
7727         (output_cpu_unit_reservation_p): Short circuit
7728         if description->query_units_num is zero.
7729
7730 2006-01-22  Zack Weinberg  <zackw@panix.com>
7731
7732         * genattrtab.c: Don't include genattrtab.h.  Define ATTR_NONE
7733         and ATTR_SPECIAL (from genattrtab.h).  Don't define num_dfa_decls
7734         nor any of the random handful of variables that used to be necessary
7735         when this program was linked with rtlanal.o.  Prune set of forward
7736         function declarations.
7737         (struct attr_desc): Remove static_p field.
7738         (hash_obstack, temp_obstack, attr_hash_table, attr_printf)
7739         (check_attr_test, make_internal_attr, make_numeric_value): Make static.
7740         (attr_string): Do not read the character one past the length of
7741         the string.
7742         (write_attr_get, find_attr, make_internal_attr): Don't touch static_p.
7743         (struct insn_reserv, all_insn_reservs, last_insn_reserv_p)
7744         (n_insn_reservs, gen_insn_reserv, struct bypass_list, all_bypasses)
7745         (n_bypasses, gen_bypass_1, gen_bypass, process_bypasses)
7746         (make_automaton_attrs): New.
7747         (main): Do not call into genautomata.  Call local gen_bypass
7748         and gen_insn_reserv as appropriate.  Call make_automaton_attrs.
7749         Remove special case for insn_alts.
7750         * genautomata.c: Include gensupport.h; not genattrtab.h nor
7751         varray.h (leftover from previous change).  Prune set of forward
7752         function declarations.  Remove state_alts fields from all
7753         structures.  Remove state_alts_table from struct automaton.
7754         Make everything except main static.  Do not maintain num_dfa_decls.
7755         Do not maintain state_alts fields of various structures.
7756         (process_decls): Don't validate condexp for dm_insn_reserv decls.
7757         (add_arc): Remove state_alts argument.  All callers updated.
7758         (output_reserved_units_table): Emit #ifdef here...
7759         (output_tables): ...not here.  Don't generate state_alts tables.
7760         (expand_automata): Don't generate attributes.
7761         (write_automata): Don't generate state_alts functions.
7762         (main): New function.
7763         (it_is_empty_reserv_sets, output_state_alts_full_vect_name)
7764         (output_state_alts_comb_vect_name, output_state_alts_check_vect_name)
7765         (AUTOMATON_STATE_ALTS_MACRO_NAME, INTERNAL_STATE_ALTS_FUNC_NAME)
7766         (STATE_ALTS_FUNC_NAME, INSN_DEFAULT_LATENCY_FUNC_NAME)
7767         (BYPASS_P_FUNC_NAME, output_state_alts_table)
7768         (output_automata_list_state_alts_code, output_internal_state_alts_func)
7769         (output_state_alts_func, make_insn_alts_attr, make_bypass_attr)
7770         (make_internal_dfa_insn_code_attr, make_default_insn_latency_attr):
7771         Delete.
7772         * genattr.c: Declare internal_dfa_insn_code in insn-attr.h.
7773         * genattrtab.h: Delete file.
7774         * Makefile.in (OBJS-common): Add insn-automata.o.
7775         (insn-automata.o): New rule.
7776         (simple_generated_c): Add insn-automata.c.
7777         (build/genattrtab.o, build/genautomata.o): Update dependencies.
7778         (genprogmd): Add automata.
7779         (build/genattrtab): Needs no extra objects nor libraries.
7780         (build/genautomata): Needs build/vec.o and -lm.
7781
7782 2006-01-22  Zack Weinberg  <zackw@panix.com>
7783
7784         * genautomata.c (process_state_longest_path, max_dfa_issue_rate)
7785         (output_dfa_max_issue_rate, locked_states_num): Delete.
7786         (struct automaton): Add locked_states field.
7787         (output_dead_lock_vect): Save number of locked states in
7788         automaton->locked_states.  If it is zero, don't print anything.
7789         (output_max_insn_queue_index_def): Define max_insn_queue_index const.
7790         (output_internal_dead_lock_func): Only test the dead_lock_vect
7791         for automata that have locked states.
7792         (output_statistics): Always print the number of locked states for
7793         each automaton.  Calculate total number of locked states here.
7794         (write_automata): Don't call output_dfa_max_issue_rate.
7795         * genattrtab.c: Define length_unit_log as a const variable.
7796         * genattr.c: Don't emit MAX_DFA_ISSUE_RATE.  Declare
7797         max_insn_queue_index const.
7798         * final.c (length_unit_log): Declare const.
7799         * doc/tm.texi: Remove all references to MAX_DFA_ISSUE_RATE.
7800
7801 2006-01-22  Zack Weinberg  <zackw@panix.com>
7802
7803         * genautomata.c:  Include vec.h, not varray.h.
7804         Delete vla_ptr_t, all of the VLA_PTR_ macros, and all of the
7805         VLA_HWINT_ macros.  Change vla_hwint_t to a typedef for
7806         VEC(vect_el_t,heap) *.  Convert all uses of VLA_* macros to
7807         VEC_* macros operating on appropriately typed vectors, or to
7808         malloced arrays when the size is known in advance.  Const-ify
7809         many char* variables and function arguments.  No functional changes.
7810         * Makefile.in (build/varray.o): Delete rule.
7811         (build/genattrtab): Depend on build/vec.o instead of build/varray.o.
7812         (build/genautomata.o): Depend on vec.h instead of $(VARRAY_H).
7813
7814 2006-01-22  Zack Weinberg  <zackw@panix.com>
7815
7816         * gensupport.c: Define get_insn_name and record_insn_name here.
7817         (read_md_rtx): Call record_insn_name as appropriate.
7818         * genattr.c, genattrtab.c, gencodes.c, genconfig.c, genemit.c
7819         * genextract.c, genflags.c, genopinit.c, genoutput.c, genpeep.c
7820         * genpreds.c, genrecog.c: Don't define get_insn_name nor
7821         record_insn_name.
7822         * Makefile.in (BUILD_SUPPORT, BUILD_PRINT): Fold into BUILD_RTL.
7823         (BUILD_VARRAY): Delete.
7824         (genprognormal): Rename genprogmd.  Fold in all programs from
7825         genprognoprint; also attrtab.
7826         (build/genattrtab): Just mention genautomata.o and varray.o.
7827         Reorganize a bit, add comments to make the categories clearer.
7828
7829 2006-01-22  Zack Weinberg  <zackw@panix.com>
7830
7831         * genconditions.c (condition_table, add_condition): Delete.
7832         (write_conditions): Don't emit n_insn_conditions nor
7833         insn_elision_unavailable.  Issue the gcc version #ifdef here,
7834         inside the table, with no #else clause ...
7835         (write_header): ...not here.
7836         (write_writer): New function.
7837         (main): Don't initialize condition_table.  Use add_c_test.
7838         Call write_writer.
7839         * gensupport.c (init_md_reader_args_cb): Handle multiple input
7840         files on the command line.
7841         (maybe_eval_c_test): Don't check insn_elision_unavailable.
7842         Return -1 if there is no entry in the table, don't abort.
7843         (add_c_test, traverse_c_tests): New functions.
7844         * gensupport.h (insn_elision_unavailable, insn_conditions)
7845         (n_insn_conditions): Delete declarations.
7846         (add_c_test, traverse_c_tests): Declare.
7847         * read-rtl.c: Include gensupport.h.
7848         (read_conditions): New function.
7849         (read_rtx): If read_rtx_1 returns 0, treat as EOF.
7850         (read_rtx_1): If we get EOF when we were looking for an initial
7851         open paren, return 0.  Call read_conditions when appropriate.
7852         * Makefile.in: Kill BUILD_EARLY_SUPPORT and all references to
7853         dummy-conditions.o.  Eliminate references to insn-conditions.o,
7854         or change them to build/gencondmd.o, as appropriate.  Remove
7855         insn-constants.h from $(simple_generated_h) and insn-conditions.c
7856         from $(simple_generated_c).  For all files remaining in those
7857         two lists, add insn-conditions.md to the generator command line.
7858         Give insn-constants.h/s-constants their own rules.  Add rules
7859         for build/gencondmd.c, s-conditions, insn-conditions.md, s-condmd.
7860         (build/read-rtl.o): Depend on gensupport.h.
7861         (genprognormal): Include preds.
7862         (genprogearly): Rename genprognoprint; only difference is now that
7863         they don't link with $(BUILD_PRINT).
7864         * dummy-conditions.c: Delete.
7865
7866 2006-01-22  Zack Weinberg  <zackw@panix.com>
7867
7868         * genextract.c: Don't include insn-config.h.  Do include vec.h.
7869         Declare vectors of int, char, and locstr.
7870         (locstr): New typedef.
7871         (struct extraction): Make all array fields into bare pointers.
7872         (insn_name_ptr, insn_name_ptr_size): Move down by get_insn_name.
7873         (insn_code_number): Delete.
7874         (accum_extract): New struct.
7875         (VEC_safe_set_locstr, VEC_char_to_string): New functions.
7876         (gen_insn): Take insn_code_number as an argument.  Use an
7877         accum_extract structure instead of loading data directly into
7878         a struct extraction, and having to know how big it might get.
7879         (walk_rtx): Operate entirely on an accum_extract structure.
7880         (print_path): Avoid unnecessary use of printf.
7881         (print_header): New function, split out of main.  Distinguish
7882         more carefully between an unrecognizable insn and an insn that
7883         has the code number of a define_expand.
7884         (main): Pass insn_code_number to gen_insn.  Call print_header
7885         only after parsing.  Avoid unnecessary use of printf.
7886         * Makefile.in (build/vec.o): New rule.
7887         (build/genextract): Depend on build/vec.o.
7888         (build/genextract.o): Don't depend on insn-config.h.
7889
7890 2006-01-22  Zack Weinberg  <zackw@panix.com>
7891
7892         * Makefile.in: Consolidate most rules that use $(CC_FOR_BUILD) and/or
7893         $(RUN_GEN).  Use pattern rules to factor out as much boilerplate as
7894         practical.  Eliminate per-generator-program link rules.
7895
7896 2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
7897
7898         PR middle-end/24437
7899         * tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
7900         with a call expr to ...
7901         * fold-const.c (fold_ternary) <case CALL_EXPR>: Here.
7902
7903 2006-01-23  Richard Guenther  <rguenther@suse.de>
7904
7905         * cfgloopmanip.c (lv_adjust_loop_entry_edge): Add comment
7906         before make_edge with conditional EDGE_TRUE_VALUE.
7907
7908 2006-01-23  Steven Bosscher  <stevenb.gcc@gmail.com>
7909         Jan Hubicka  <jh@suse.cz>
7910         Richard Guenther  <rguenther@suse.de>
7911
7912         PR rtl-optimization/25654
7913         * cfgexpand.c (aggregate_contains_union_type): New function.
7914         (add_alias_set_conflicts): Call it.  Make sure to add conflicts
7915         for structure variables that contain a union type.
7916
7917 2006-01-23  Richard Sandiford  <richard@codesourcery.com>
7918
7919         * gengtype.c (new_structure): Return the structure.
7920         (create_option): Add an extra "next" argument.
7921         (create_field): New function.
7922         (adjust_field_rtx_def): Use create_option and create_field.
7923         Remove a now-unnecessary call to find_structure.
7924         (adjust_field_tree_def): Likewise.
7925         (note_yacc_type): Remove an unnecessary call to find_structure.
7926         * gengtype.h (new_structure): Return the structure.
7927         (create_option): Add an extra argument.
7928         * gengtype-yacc.y (type): Remove unnecessary calls to find_structure.
7929         (option): Adjust calls to create_option.
7930
7931 2006-01-22  David Edelsohn  <edelsohn@gnu.org>
7932
7933         * config/rs6000/aix.h (STACK_BOUNDARY): Define.
7934
7935 2006-01-22  Paul Brook  <paul@codesourcery.com>
7936         Peter Barada  <peter@the-baradas.com>
7937
7938         * config/m68k/m68k.md: Add Coldfire FPU support.
7939         Define FP mode macro and associated attributes.
7940         Use it for float mode patterns.
7941         * config/m68k/linux.h (FUNCTION_VALUE): Use m68k_function_value.
7942         (LIBCALL_VALUE): Use m68k_libcall_value.
7943         * config/m68k/m68k-protos.h (m68k_libcall_value): Add prototype.
7944         (m68k_function_value): Ditto.
7945         (emit_move_sequence): Ditto.
7946         * config/m68k/m68kemb.h (LIBCALL_VALUE): Use m68k_libcall_value.
7947         * config/m68k/m68k-none.h (ASM_SPEC): Add mcfv4e.
7948         * config/m68k/t-m68kelf (MULTILIB_OPTIONS): Add mcfv4e.
7949         (MULTILIB_EXCEPTIONS): Ditto.
7950         * config/m68k/m68k.opt: Add mcfv4e.
7951         * config/m68k/m68k.c (m68k_handle_option): Handle OPT_mcfv4e.
7952         (m68k_compute_frame_layout): Include space for ColdFire FPU regs.
7953         (m68k_output_function_prologue): Save ColdFire FPU registers.
7954         (m68k_output_function_epilogue): Restore ColdFire FPU registers.
7955         (force_mode, fp_reg_operand, emit_move_sequence): New functions.
7956         (m68k_regno_mode_ok): Don't allow types larget than 8 bytes in
7957         ColdFire FPU registers.
7958         (m68k_libcall_value, m68k_function_value): New functions.
7959         * config/m68k/netbsd-elf.h (FUNCTION_VALUE): Use m68k_function_value.
7960         (LIBCALL_VALUE): Use m68k_libcall_value.
7961         * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Define __mcfv4e__.
7962         (MASK_COLDFIRE): Add MASK_CFV4E.
7963         (TARGET_COLDFIRE_FPU, TARGET_HARD_FLOAT, TARGET_FP_REG_SIZE): New.
7964         (MODES_TIEABLE_P): Use TARGET_HARD_FLOAT.
7965         (REG_CLASS_FROM_LETTER, PREFERRED_RELOAD_CLASS): Ditto.
7966         (GO_IF_COLDFIRE_FPU_LEGITIMATE_ADDRESS): Define.
7967         (GO_IF_LEGITIMATE_ADDRESS): Use it.
7968         (LEGITIMIZE_ADDRESS): Handle ColdFire FPU addresses.
7969         * doc/invoke.tex: Document -mcfv4e on m68k.
7970
7971 2006-01-22  Ranjit Mathew  <rmathew@gcc.gnu.org>
7972
7973         * doc/contribute.texi: Change CVS to SVN and update the corresponding
7974         URL.
7975
7976 2006-01-21  Gabriel Dos Reis  <gdr@integrable-solutions.net>
7977
7978         PR c++/16190
7979         * c-opts.c (c_common_handle_option): Don't include
7980         -Wnon-virtual-dtor in -Wall; enable if -Weffc++.
7981         * doc/invoke.texi (C++ Dialect Options): Document that
7982         -Wnon-virtual-dtor is no longer included in -Wall.
7983
7984 2006-01-21  Joseph S. Myers  <joseph@codesourcery.com>
7985
7986         * gcov.c (print_version), gcov-dump.c (print_version),
7987         mips-tdump.c (main), mips-tfile.c (main): Update copyright notice
7988         dates.
7989
7990 2006-01-21  Kenneth Zadeck <zadeck@naturalbridge.com>
7991
7992         * df-scan.c (problem_SCAN): Added NULL reset function.
7993         (df_scan_reset_blocks): Added code to call reset block function
7994         (df_bb_refs_delete) Fixed comment.
7995         (df_insn_refs_delete): Made tolerant of deleting non existent info
7996         for dataflow problems that need to be reset.
7997         * df-core.c (df_set_blocks): Ditto.
7998         * df.h (struct df_problem): Added reset_fun.
7999         * df-problems.c (problem_RU, problem_RD, problem_LR, problem_UR,
8000         problem_UREC, problem_CHAIN, problem_RI): Initialized reset_fun field.
8001         (df_chain_insn_reset, df_chain_bb_reset, df_chain_reset): New
8002         functions to clear out all references to def-use or use-def chains.
8003
8004 2006-01-21  Ben Elliston  <bje@au.ibm.com>
8005
8006         * varasm.c (assemble_real): Initialise data array.
8007
8008 2006-01-20  Paul Brook  <paul@codesourcery.com>
8009
8010         Merge from csl-arm-branch.
8011         2005-09-21  Kazu Hirata  <kazu@codesourcery.com>
8012         * config/arm/arm.md (movdi): Force operands[1] to a register
8013         if we have a non-register source.
8014         (*arm_movdi, *movdf_soft_insn): Require that one of the
8015         operands be a register.
8016         * config/arm/iwmmxt.md (*iwmmxt_arm_movdi): Likewise.
8017         * config/arm/vfp.md (*arm_movdi_vfp, *movdf_vfp): Likewise.
8018
8019 2006-01-20  DJ Delorie  <dj@redhat.com>
8020
8021         * varasm.c (initialize_constant_valid_p): Allow pointers
8022         initialized from integer constants of lesser precision.
8023         (output_constant): Allow non-int-sized pointer modes to be
8024         initialized from integer constants.
8025
8026 2006-01-20  Joseph S. Myers  <joseph@codesourcery.com>
8027
8028         PR libstdc++/25524
8029         * cppdefault.h (struct default_include): Add multilib flag.
8030         * cppdefault.c (cpp_include_defaults): Set it.
8031         * c.opt (-imultilib): New option.
8032         * c-opts.c (imultilib): New.
8033         (c_common_handle_option): Handle -imultilib.
8034         (c_common_post_options): Likewise.
8035         * c-incpath.c (add_standard_paths, register_include_chains):
8036         Likewise.
8037         * c-incpath.h (register_include_chains): Add extra parameter.
8038         * gcc.c (do_spec_1): Generate -imultilib option.
8039         (The Specs Language): Update %I description.
8040         (process_command): Update copyright notice.
8041         * doc/cppopts.texi (-imultilib): Document.
8042         * doc/invoke.texi (-imultilib): Include in option summary.
8043         (%I): Update specs documentation.
8044
8045 2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>
8046
8047         * loop-iv.c (iv_analysis_loop_init): Use df in more conservative way.
8048
8049 2006-01-20  Richard Sandiford  <richard@codesourcery.com>
8050
8051         * stmt.c (case_bit_test_cmp): Stabilize the sort using code
8052         label numbers.
8053
8054 2006-01-20  Richard Guenther  <rguenther@suse.de>
8055         Steven Bosscher <stevenb.gcc@gmail.com>
8056
8057         PR rtl-optimization/24626
8058         * cfgloopmanip.c (lv_adjust_loop_entry_edge): Don't set
8059         EDGE_TRUE_VALUE if in RTL mode.
8060
8061         Revert
8062         2005-03-30 Mostafa Hagog <mustafa@il.ibm.com>
8063         * cfgrtl.c (rtl_verify_flow_info_1): Fix.
8064
8065 2006-01-20  Dirk Mueller  <dmueller@suse.com>
8066
8067         PR c++/5520
8068         * c-parser.c (c_parser_if_body): Use build_empty_stmt()
8069         instead of a special NOP marker.
8070         * c-typeck.c (c_finish_if_stmt): Remove obsoleted special
8071         NOP marker handling.
8072         * c-common.h (empty_body_warning): Add forward declaration.
8073         * c-common.c (empty_body_warning): Add (from c_finish_if_stmt).
8074         Now uses IS_EMPTY_STMT() instead of special NOP markers.
8075
8076 2006-01-20  Paul Brook  <paul@codesourcery.com>
8077
8078         * Makefile.in (lang_checks): Keep going if mkdir fails.
8079
8080 2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
8081
8082         * df-scan.c (df_scan_free_bb_info): Added basic block parameter to
8083         be able to clean out basic block when not necessary.
8084         (df_scan_free): Fixed to properly delete information if df is
8085         unused before calling df_finish.
8086         (df_scan_alloc, df_rescan_blocks, df_reg_chain_unlink,
8087         df_insn_create_insn_record, df_bb_refs_record): Fixed formatting
8088         or comment typos.
8089         (df_bb_refs_delete): New function.
8090         (df_refs_delete): Moved per block code to df_bb_refs_delete.
8091         * df-core.c (df_set_blocks): Added code to properly clean out
8092         unused blocks if they are not part of the blocks to consider.
8093         Added additional null check.
8094         (df_compact_blocks): Added basic block parameter to free_bb_fun to
8095         be able to clean out basic block when not necessary
8096         * df.h (df_free_bb_function): Ditto.
8097         (df_bb_refs_delete): New function.
8098         * df-problems.c (df_ru_free_bb_info, df_rd_set_bb_info,
8099         df_lr_set_bb_info, df_ur_free_bb_info, df_urec_free_bb_info):Added
8100         basic block parameter to be able to clean out basic block when not
8101         necessary.
8102         (df_ru_alloc, df_rd_alloc): Fixed dyslexic overflow test.
8103         (df_ru_free, df_rd_free, df_lr_free, df_ur_free, df_urec_free):
8104         Fixed to properly delete information if df is unused before
8105         calling df_finish.
8106
8107 2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
8108
8109         PR rtl-optimization/25799
8110         * df-problems.c (df_ru_confluence_n, df_rd_confluence_n):
8111         Corrected confluence operator to remove bits from op2 before oring
8112         with op1 rather than removing bits from op1.
8113         (df_ru_transfer_function): Corrected test on wrong bitmap which
8114         caused infinite loop.  Both of these problems were introduced in
8115         the dataflow rewrite.
8116
8117 2006-01-19  DJ Delorie  <dj@redhat.com>
8118
8119         * reload1.c (find_reload_regs): Note the details of reload
8120         failures in the dump file.
8121         (spill_failure): Likewise.
8122
8123 2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>
8124
8125         * loop-iv.c: Include df.h and hashtab.h.
8126         (enum iv_grd_result): New enum.
8127         (DF_REF_IV, DF_REF_IV_SET): New macros.
8128         (struct biv_entry): New.
8129         (df, bivs): New global variables.
8130         (struct insn_info, insn_info, last_def, bivs, max_insn_no, max_reg_no,
8131         assign_luids, mark_sets, kill_sets, mark_single_set, simple_set_p):
8132         Removed.
8133         (clear_iv_info, latch_dominating_def, record_iv, iv_analyze_expr,
8134         iv_analyze_result, iv_analyze_def, biv_hash, biv_eq,
8135         analyzed_for_bivness_p, record_biv): New functions.
8136         (iv_analysis_loop_init, iv_get_reaching_def, simple_reg_p,
8137         get_biv_step_1, get_biv_step, iv_analyze_biv, iv_analyze_op,
8138         iv_analyze, biv_p, iv_analysis_done): Work with df representation of
8139         UD chains.
8140         (iv_constant, iv_subreg, iv_extend, iv_mult, iv_shift): Do not set
8141         analysed.
8142         (iv_number_of_iterations): Use new interface to iv analysis.
8143         * loop-unroll.c: Do not include varray.h.
8144         (analyze_iv_to_split_insn): Use new interface to iv
8145         analysis.
8146         * loop-unswitch.c (may_unswitch_on): Ditto.
8147         * df.c (df_bitmaps_free): Only work for bbs for that structures are
8148         allocated.
8149         (df_bb_modify): Realloc tables to the new index.
8150         (df_find_use): New function.
8151         * df.h (df_find_use): Declare.
8152         * optabs.c (expand_unop): Make the mode of the REG_EQUAL node be
8153         outmode.
8154         * cfgloop.h (struct rtx_iv): Remove analysed field.
8155         (iv_get_reaching_def): Removed.
8156         (iv_analyze_result, iv_analyze_expr, iv_current_loop_df): Declare.
8157         * Makefile.in (loop-unroll.o): Remove VARRAY_H dependency.
8158         (loop-iv.o): Add df.h and hashtab.h dependency.
8159         * df-problems.c (df_ru_alloc, df_rd_alloc): Fix memory reallocation.
8160
8161 2006-01-20  Alan Modra  <amodra@bigpond.net.au>
8162
8163         PR target/25668
8164         * libgcc2.c (__floatdisf, __floatdidf): Don't use IBM Extended
8165         Double TFmode.
8166         (__floatundisf, __floatundidf): Likewise.
8167         * libgcc2.h (IS_IBM_EXTENDED): Define.
8168
8169 2006-01-19  DJ Delorie  <dj@redhat.com>
8170
8171         * config/m32c/m32c.h (REG_ALLOC_ORDER): Define.
8172
8173 2006-01-19  Paul Brook  <paul@codesourcery.com>
8174
8175         * gcc/config/arm/arm.c (arm_compute_func_type): Treat all functions
8176         as nothrow when unwinding tables are disabled.
8177
8178 2006-01-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
8179
8180         PR testsuite/25171
8181         * c-decl.c (check_bitfield_type_and_width): Don't issue pedwarn "type
8182         of bit-field" when in system header.
8183
8184 2006-01-19  DJ Delorie  <dj@redhat.com>
8185
8186         * config/m32c/m32c.c (m32c_prepare_shift): Add code to deal with
8187         the 16 bit shift limit of the m16c.
8188
8189 2006-01-19  Andrew Pinski  <pinskia@physics.uc.edu>
8190
8191         PR target/22099
8192         * config/i386/i386.md (builtin_setjmp_receiver): Don't emit the label.
8193         * config/i386/i386.c (output_set_got): Output the label if we have one
8194         for the TARGET_DEEP_BRANCH_PREDICTION case.
8195
8196 2006-01-19  Jan Hubicka  <jh@suse.cz>
8197             H.J. Lu  <hongjiu.lu@intel.com>
8198             Evandro Menezes <evandro.menezes@amd.com>
8199
8200         * invoke.texi (generic): Document
8201         (i686) Update.
8202         * config.gcc: Make x86_64-* and i686-* default to generic tunning.
8203         * i386.h (TARGET_GENERIC32, TARGET_GENERIC64, TARGET_GENERIC,
8204         TARGET_USE_INCDEC, TARGET_PAD_RETURNS): New macros.
8205         (x86_use_incdec, x86_pad_returns): New variables
8206         (TARGET_CPU_DEFAULT_generic): New constant
8207         (TARGET_CPU_DEFAULT_NAMES): Add generic.
8208         (enum processor_type): Add generic32 and generic64.
8209         * i386.md (cpu attribute): Add generic32/generic64
8210         (movhi splitter): Behave sanely when both partial_reg_dependency and
8211         partial_reg_stall are set.
8212         (K8 splitters): Enable for generic as well.
8213         * predicates.md (incdec_operand): Use TARGET_INCDEC
8214         (aligned_operand): Avoid memory mismatch stalls.
8215         * athlon.md: Enable for generic64, new patterns for 128bit moves.
8216         * ppro.md: Enable for generic32
8217         * i386.c (generic64_cost, generic32_cost): New.
8218         (m_GENERIC32, m_GENERIC64, m_GENERIC): New macros.
8219         (x86_use_leave): Enable for generic64.  (x86_use_sahf,
8220         x86_ext_80387_constants): Enable for generic32.  (x86_push_memory,
8221         x86_movx, x86_unroll_strlen, x86_deep_branch, x86_use_simode_fiop,
8222         x86_use_cltd, x86_promote_QImode, x86_sub_esp_4, x86_sub_esp_8,
8223         x86_add_esp_4, x86_add_esp_8, x86_integer_DFmode_moves,
8224         x86_partial_reg_dependency, x86_memory_mismatch_stall,
8225         x86_accumulate_outgoing_args, x86_prologue_using_move,
8226         x86_epilogue_using_move, x86_arch_always_fancy_math_387,
8227         x86_sse_partial_reg_dependency, x86_four_jump_limit, x86_schedule):
8228         Enable for generic.
8229         (x86_use_incdec, x86_pad_returns): New.
8230         (override_options): Add generic32 and generic64, translate "generic"
8231         to generic32/generic64 and "i686" to "generic32", refuse
8232         "generic32"/"generic64" as arch target.
8233         (ix86_issue_rate, ix86_adjust_cost): Handle generic as athlon.
8234         (ix86_reorg): Honor PAD_RETURNS.
8235
8236 2006-01-19  Diego Novillo  <dnovillo@redhat.com>
8237
8238         * tree-pretty-print.c (dump_generic_node): Handle
8239         OMP_PARALLEL_FN, OMP_PARALLEL_DATA_ARG and OMP_RETURN_EXPR.
8240         * cgraph.c (cgraph_expand_queue): Rename from
8241         cgraph_analyze_queue.  Update all users.
8242         * cgraphunit.c (cgraph_assemble_pending_functions): Process
8243         cgraph_expand_queue.
8244         (cgraph_expand_all_functions): Likewise.
8245         (cgraph_finalize_pending_functions): Remove.  Update callers.
8246
8247         * tree.h (OMP_DIRECTIVE_P): Define.
8248         (OMP_PARALLEL_FN): Define.
8249         (OMP_PARALLEL_DATA_ARG): Define.
8250         (OMP_SECTIONS_SECTIONS): Define.
8251         * tree-pass.h (pass_expand_omp): Declare.
8252         * omp-low.c (struct omp_region): Declare.
8253         (struct omp_context): Remove fields 'parallel_type',
8254         'parallel_start_ix' and 'parallel_start_additional_args'.
8255         Update all users.
8256         (struct omp_for_data): Rename from struct expand_omp_for_data.
8257         (omp_regions): New static variable.
8258         (root_omp_region): New static variable.
8259         (find_omp_clause): Make static.
8260         (is_in_combined_parallel_ctx): Remove.
8261         (is_combined_parallel): New.
8262         (extract_omp_for_data): Move earlier in the file.
8263         (workshare_safe_to_combine_p): New.
8264         (get_ws_args_for): New.
8265         (determine_parallel_type): Move earlier in the file.
8266         (omp_copy_decl_2): Do not set DECL_CONTEXT of new local to the
8267         child function.
8268         (omp_copy_decl): Likewise.
8269         (create_omp_child_function): Likewise.
8270         (lookup_omp_region): New.
8271         (dump_omp_region): New.
8272         (debug_omp_region): New.
8273         (debug_all_omp_regions): New.
8274         (new_omp_region): New.
8275         (scan_omp_parallel): If parallel_nesting_level > 1, the
8276         directive is nested within another parallel directive.
8277         Set OMP_PARALLEL_FN.
8278         (scan_omp_for): Do not try to handle combined parallel+for
8279         cases.
8280         Remove FIXME comment.
8281         (scan_omp_nested): Remove.
8282         (scan_omp_1): Do not call scan_omp_nested when
8283         parallel_nesting_level is > 1.
8284         Do not change the DECL_CONTEXT of local variables found.
8285         (lookup_decl_in_outer_ctx): New.
8286         (lower_rec_input_clauses): Rename from expand_rec_input_clauses.
8287         (lower_lastprivate_clauses): Rename from expand_lastprivate_clauses.
8288         (lower_reduction_clauses): Rename from expand_reduction_clauses.
8289         (lower_copyprivate_clauses): Rename from expand_copyprivate_clauses.
8290         If CTX is nested, lookup VAR in the outer context when
8291         building copy assignment.
8292         (lower_send_clauses): Rename from expand_send_clauses.
8293         If CTX is nested, lookup VAR in the outer context when
8294         building copy assignments.
8295         (lower_send_shared_vars): Rename from expand_send_shared_vars.
8296         If CTX is nested, lookup VAR in the outer context when
8297         building copy assignments.
8298         (expand_parallel_call): Rename from build_parallel_call.
8299         Handle combined parallel+workshare cases.
8300         Re-implement to emit code into the CFG.
8301         (list2chain): New.
8302         (expand_omp_parallel): Re-implement to emit code into the CFG.
8303         Call move_sese_region_to_fn to outline the sub-graph
8304         containing the parallel region.
8305         (expand_omp_for_1): Remove.
8306         (expand_omp_for_generic): Re-implement to emit code into the
8307         CFG.
8308         (expand_omp_for_static_nochunk): Likewise.
8309         (expand_omp_for_static_chunk): Likewise.
8310         (expand_omp_for): Likewise.
8311         (expand_omp_sections): Likewise.
8312         (remove_exit_barriers): New.
8313         (expand_omp_synch): New.
8314         (expand_omp): New.
8315         (build_omp_regions_1): New.
8316         (build_omp_regions): New.
8317         (execute_expand_omp): New.
8318         (gate_expand_omp): New.
8319         (pass_expand_omp): Define.
8320         (lower_omp_sections): Rename from expand_omp_sections.
8321         Set OMP_SECTIONS_SECTIONS.
8322         (lower_omp_single_simple): Rename from expand_omp_single_simple.
8323         (lower_omp_single_copy): Rename from expand_omp_single_copy.
8324         (lower_omp_single): Rename from expand_omp_simple.
8325         (lower_omp_master): Rename from expand_omp_master.
8326         (lower_omp_ordered): Rename from expand_omp_ordered.
8327         (lower_omp_critical): Rename from expand_omp_critical.
8328         (lower_omp_for_lastprivate): Rename from expand_omp_for_lastprivate.
8329         (lower_omp_for): Re-implement.
8330         (lower_omp_parallel): Re-implement.
8331         (lower_regimplify): Rename from expand_regimplify.
8332         (lower_omp_1): Rename from expand_omp_1.
8333         If there are syntax errors in the program, replace every
8334         OpenMP directive with NOP.
8335         Call lower_omp_* instead of expand_omp_*.
8336         (lower_omp): Rename from expand_omp.
8337
8338         * tree-gimple.c (is_gimple_stmt): Handle OMP_RETURN_EXPR.
8339         * tree-gimple.h (enum omp_parallel_type): Remove.
8340         (gimple_boolify): Declare extern.
8341         (find_omp_clause, determine_parallel_type): Remove.
8342
8343         * gimple-low.c (lower_omp_directive): New.
8344         (lower_stmt): Call it.
8345         (record_vars_into): Move from ...
8346         (record_vars): ... here.
8347         Call record_vars_into with current_function_decl.
8348
8349         * gimplify.c (struct gimplify_ctx): Remove fields
8350         combined_pre_p and combined_ctxp.  Update users.
8351         (get_formal_tmp_var): Add documentation.
8352         (gimple_boolify): Make extern.
8353         (gimplify_expr_in_ctx): Remove.  Update callers.
8354         (gimplify_omp_parallel): Do not assume that OMP_PARALLEL_BODY
8355         will always be a BIND_EXPR.
8356         (gimplify_expr): Handle OMP_RETURN_EXPR.
8357         * tree.def (BLOCK): Remove documentation about BLOCK_TYPE_TAGS.
8358         (OMP_PARALLEL): Add 3 operands.
8359         (OMP_SECTIONS): Add 1 operand.
8360         (OMP_RETURN_EXPR): Define.
8361
8362         * tree-inline.c (estimate_num_insns_1): Handle OpenMP directives.
8363         (copy_tree_r): Restore TREE_CHAIN in OMP_CLAUSE_*.
8364         * tree-iterator.c (alloc_stmt_list): Assert that we are not
8365         creating a circular free list.
8366         (free_stmt_list): Assert that we are not freeing stmt_list_cache.
8367
8368         * tree-flow.h (move_sese_region_to_fn): Declare.
8369         (record_vars_into): Declare.
8370         * tree-cfg.c (make_omp_sections_edges): New.
8371         (make_exit_edges): Handle OMP_PARALLEL, OMP_FOR, OMP_SINGLE,
8372         OMP_MASTER, OMP_ORDERED, OMP_CRITICAL, OMP_RETURN_EXPR,
8373         OMP_SECTIONS and OMP_SECTION.
8374         (is_ctrl_altering_stmt): Return true for OMP_DIRECTIVE_P.
8375         (set_bb_for_stmt): Undo change to check currently_expanding_to_rtl.
8376         (verify_stmt): Do not handle OMP_DIRECTIVE_P.
8377         (gather_blocks_in_sese_region): New.
8378         (struct move_stmt_d): Declare.
8379         (move_stmt_r): New.
8380         (move_block_to_fn): New.
8381         (move_sese_region_to_fn): New.
8382
8383         * passes.c (init_optimization_passes): Schedule
8384         pass_expand_omp after pass_init_datastructures.
8385
8386         * tree-ssa-operands.c (get_expr_operands): Handle
8387         OMP_PARALLEL, OMP_SECTIONS, OMP_FOR, OMP_RETURN_EXPR,
8388         OMP_SINGLE, OMP_MASTER, OMP_ORDERED, OMP_CRITICAL.
8389
8390 2006-01-19  Jeff Law  <law@redhat.com>
8391
8392         * tree-vrp.c (extract_range_from_assert): Refine the result range
8393         if the variable referenced by the ASSERT_EXPR has a range and
8394         either the tentative result range or the previous range is a
8395         VR_ANTI_RANGE.
8396
8397 2006-01-19  Richard Sandiford  <richard@codesourcery.com>
8398
8399         * c-decl.c (add_flexible_array_elts_to_size): Simplify vector accesses.
8400
8401 2006-01-19  Jan Hubicka  <jh@suse.cz>
8402
8403         * tree-vect-patterns.c (vect_pattern_recog_1): Prevent parse error.
8404
8405 2006-01-19  Paolo Bonzini  <bonzini@gnu.org>
8406
8407         * combine.c (try_combine): Do not worry about MEMs wrapped by USEs.
8408         (expand_compound_operation, expand_field_assignment): Fail if the
8409         bit lengths of an extract operation are out of range.
8410         (make_extraction): Compute wanted_inner_mode based on the position
8411         and length of the extraction.  Make it extraction_mode for non-constant
8412         positions, and do not modify offset in that case.  When generating a
8413         new MEM, use a mode that can hold the extraction while keeping correct
8414         alignment.  Remove code that supported MEMs wrapped by USEs.
8415         (simplify_shift_const_1, force_to_mode) <case USE>: Remove.
8416
8417 2006-01-19  Andreas Krebbel  <krebbel1@de.ibm.com>
8418
8419         * config/s390/s390.md ("Y", "y"): New mode attribute.
8420         ("*cmpdi_ccs", "*cmpsi_ccs", "*adddi3_imm_cc", "*adddi3_carry1_cc",
8421         "*adddi3_carry1_cconly", "*adddi3_carry2_cc", "*adddi3_carry2_cconly",
8422         "*adddi3_cc", "*adddi3_cconly", "*adddi3_cconly2", "*adddi3_64",
8423         "*addsi3_imm_cc", "*addsi3_carry1_cc",
8424         "*addsi3_carry1_cconly", "*addsi3_carry2_cc", "*addsi3_carr2_cconly",
8425         "*addsi3_cc", "*addsi3_cconly", "*addsi3_cconly2",
8426         "*subdi3_borrow_cc", "*subdi3_borrow_cconly", "*subdi3_cc",
8427         "*subdi3_cc2", "*subdi3_cconly", "*subdi3_cconly2", "*subdi3_64",
8428         "*subsi3_borrow_cc", "*subsi3_borrow_cconly", "*subsi3_cc",
8429         "*subsi3_cc2", "*subsi3_cconly", "*subsi3_cconly", "*subsi3_cconly2",
8430         "addsi3", "subsi3"): Insn patterns removed.
8431         ("*add<mode>3_carry1_cc", "*add<mode>3_carry1_cconly",
8432         "*add<mode>3_carry2_cc", "*add<mode>3_carry2_cconly", "*add<mode>3_cc",
8433         "*add<mode>3_cconly", "*add<mode>3_cconly2", "*add<mode>3_imm_cc",
8434         "*sub<mode>3_borrow_cc", "*sub<mode>3_borrow_cconly",
8435         "*sub<mode>3_cc", "*sub<mode>3_cc2", "*sub<mode>3_cconly",
8436         "*sub<mode>3_cconly2"): New insn patterns.
8437         ("addsi3", "subsi3"): New expanders.
8438
8439 2006-01-19  Dorit Nuzman  <dorit@il.ibm.com>
8440
8441         * Makefile.in (tree-vect-patterns.o): Add rule for new file.
8442         * tree-vect-analyze.c (vect_determine_vectorization_factor): Use
8443         existing STMT_VINFO_VECTYPE if available.
8444         (vect_mark_relevant): Add special handling for stmts that are
8445         marked as STMT_VINFO_IN_PATTERN_P.
8446         (vect_analyze_loop): Call vect_pattern_recog.
8447         * tree-vectorizer.c (new_stmt_vec_info): Initialize new fields.
8448         * tree-vectorizer.h (in_pattern_p, related_stmt): New fields in
8449         stmt_info.
8450         (STMT_VINFO_IN_PATTERN_P, STMT_VINFO_RELATED_STMT): New macros.
8451         (vect_recog_func_ptr): New function-pointer type.
8452         * tree-vect-patterns.c: New file.
8453         (vect_recog_widen_sum_pattern, vect_recog_widen_mult_pattern):
8454         (vect_recog_dot_prod_pattern, vect_pattern_recog):
8455         (vect_pattern_recog_1): New functions.
8456         (vect_pattern_recog_funcs): New array of function pointers.
8457
8458         * tree-vectorizer.h (ternary_op): New enum value.
8459         * tree-vect-transform.c (vect_create_epilog_for_reduction): Added
8460         declaration. Revised documentation. Removed redundant dump prints.
8461         Removed redundant argument. Added support for reduction patterns.
8462         (vectorizable_reduction): Added support for reduction patterns.
8463         (vect_transform_stmt): Added support for patterns.
8464
8465         * expr.c (expand_expr_real_1): Added case for DOT_PROD_EXPR.
8466         * genopinit.c (udot_prod_optab, sdot_prod_optab): Initialize.
8467         * optabs.c (optab_for_tree_code): Added case for DOT_PROD_EXPR.
8468         (expand_widen_pattern_expr): New function.
8469         (init_optabs): Initialize new optabs udot_prod_optab,
8470         sdot_prod_optab.
8471         * optabs.h (OTI_sdot_prod, OTI_udot_prod): New.
8472         (sdot_prod_optab, udot_prod_optab): Define new optabs.
8473         (expand_widen_pattern_expr): New function declaration.
8474         * tree.def (DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR): New
8475         tree-codes.
8476         * tree-inline.c (estimate_num_insns_1): Added cases for new
8477         tree-codes DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
8478         * tree-pretty-print.c (dump_generic_node): Likewise.
8479         (op_prio): Likewise.
8480         (op_symbol): Added cases for WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
8481         * tree-ssa-operands.c (get_expr_operands): Added case for
8482         DOT_PROD_EXPR.
8483         * tree-vect-patterns.c (widened_name_p): New function.
8484         (vect_recog_dot_prod_pattern): Added function implementation.
8485         * tree-vect-transform.c (get_initial_def_for_reduction): Added
8486         cases for DOT_PROD_EXPR, WIDEN_SUM_EXPR.
8487         * config/rs6000/altivec.md (udot_prod<mode>, sdot_prodv8hi): New.
8488         * config/i386/sse.md (sdot_prodv8hi, udot_prodv4si): New.
8489
8490         * expr.c (expand_expr_real_1): Added case for WIDEN_SUM_EXPR.
8491         * genopinit.c (widen_ssum_optab, widen_usum_optab): Initialize.
8492         * optabs.c (optab_for_tree_code): Added case for WIDEN_SUM_EXPR.
8493         (init_optabs): Initialize new optabs widen_ssum_optab,
8494         widen_usum_optab.
8495         * optabs.h (OTI_widen_ssum, OTI_widen_usum): New.
8496         (widen_ssum_optab, widen_usum_optab): Define new optabs.
8497         * tree-vect-generic.c: (expand_vector_operations_1): Check type of
8498         use instead of type of def.
8499         * tree-vect-patterns.c (vect_recog_widen_sum_pattern): Added
8500         function implementation.
8501         * config/rs6000/altivec.md (widen_usum<mode>, widen_ssumv16qi,
8502         widen_ssumv8hi): New.
8503
8504         * doc/tm.texi (ssum_widen, usum_widen, sdot_prod, udot_prod): New
8505         patterns.
8506
8507 2006-01-19  Richard Sandiford  <richard@codesourcery.com>
8508
8509         PR c/25805
8510         * c-decl.c (add_flexible_array_elts_to_size): New function.
8511         (finish_decl): Use it.
8512
8513 2006-01-18  Andrew Pinski  <pinskia@physics.uc.edu>
8514
8515         * diagnostic.h: Include options.h.
8516         * config/rs6000/x-darwin (host-ppc-darwin.o): Correct the
8517         dependancies for diagnostic.h.
8518         * Makefile.in (DIAGNOSTIC_H): Add options.h.
8519
8520 2006-01-16  Daniel Berlin  <dberlin@dberlin.org>
8521
8522         * tree-ssa-operands.h (ssa_call_clobbered_cache_valid): Remove.
8523         (ssa_ro_call_cache_valid): Ditto.
8524         * tree-ssa-alias.c (sort_tags_by_id): New function.
8525         (init_transitive_clobber_worklist): Ditto.
8526         (add_to_worklist): Ditto.
8527         (mark_aliases_call_clobbered): Ditto.
8528         (compute_tag_properties): Ditto.
8529         (set_initial_properties): Ditto.
8530         (compute_call_clobbered): Ditto.
8531         (compute_may_aliases):  Call compute_call_clobbered and grouping.
8532         (compute_flow_sensitive_aliasing): Remove clobbering related code.
8533         (compute_flow_insensitive_aliasing): Grouping now happens in our
8534         caller.
8535         (setup_pointers_and_addressables): Remove clobbering related code.
8536         (add_may_alias): Ditto.
8537         (replace_may_alias): Ditto.
8538         (get_nmt_for): Ditto.
8539         (create_global_var):
8540         (is_escape_site): Return an escape_type enumeration.
8541         * tree-flow-inline.h (is_call_clobbered):  Global var does not
8542         imply call clobbered.
8543         (mark_call_clobbered): Take a reason for marking this. Remove
8544         marking of globalness, and cache invalidation.
8545         (clear_call_clobbered): Remove cache invalidation code.
8546         * tree-dfa.c (dump_variable): If details is on, dump the reason
8547         for escaping.
8548         * tree-outof-ssa.c (create_temp): Copy escape mask from original
8549         variable.
8550         * tree-flow.h (struct ptr_info_def): Add escape mask member.
8551         (struct var_ann_d): Ditto.
8552         (enum escape_type): New.
8553         (mark_call_clobbered): Adjust prototype.
8554         * tree-ssa-structalias.c (update_alias_info): Unmodifiable vars
8555         are never call clobbered.
8556         Record reasons for escaping.
8557         * tree-ssa-structalias.h (is_escape_site): Update prototype.
8558         * tree-ssa-operands.c (ssa_call_clobbered_cache_valid): Remove.
8559         (ssa_ro_call_cache_valid): Ditto.
8560         (clobbered_v_may_defs): Ditto.
8561         (clobbered_vuses): Ditto.
8562         (ro_call_vuses): Ditto.
8563         (clobber_stats): New.
8564         (init_ssa_operands): Zero out clobber stats.
8565         (fini_ssa_operands): Print out clobber stats.
8566         (get_call_expr_operands): Pass callee fndecl to
8567         add_call_read_ops).
8568         (add_call_clobber_ops): Remove use of cache.
8569         Add use of PURE_CONST information.
8570         (add_call_read_ops): Remove use of cache.
8571         Add use of static not_read information.
8572
8573 2006-01-18  Alexandre Oliva  <aoliva@redhat.com>
8574
8575         Introduce TLS descriptors for i386 and x86_64.
8576         * config/i386/i386.h (TARGET_GNU2_TLS): New macro.
8577         (TARGET_ANY_GNU_TLS): New macro.
8578         (enum tls_dialect): Added TLS_DIALECT_GNU2.
8579         (struct machine_function): Add tls_descriptor_call_expanded_p.
8580         (ix86_tls_descriptor_calls_expande_in_cfun): New macro.
8581         (ix86_current_function_calls_tls_descriptor): Likewise.
8582         * config/i386/i386.c (ix86_tls_dialect): Fix typo in comment.
8583         (override_options): Introduce gnu2 tls dialect.
8584         (ix86_frame_pointer_required): Functions containing TLSCALLs are
8585         not leaves.
8586         (ix86_select_alt_pic_regnum, ix86_compute_frame_layout):
8587         Likewise.
8588         (legitimize_tls_address): Adjust logic for GNU2 TLS.
8589         (ix86_init_machine_status): Initialize new field.
8590         (ix86_tls_get_addr): Use TARGET_ANY_GNU_TLS.
8591         (ix86_tls_module_base): New.
8592         * config/i386/i386-protos.h (ix86_tls_module_base): Declare it.
8593         * config/i386/i386.md (UNSPEC_TLSDESC): New constant.
8594         (tls_global_dynamic_32, tls_global_dynamic_64): Handle GNU2 TLS.
8595         (tls_local_dynamic_base_32, tls_local_dynamic_base_64): Likewise.
8596         (tls_dynamic_gnu2_32, *tls_dynamic_lea_32): New patterns.
8597         (*tls_dynamic_call_32, *tls_dynamic_gnu2_combine_32): Likewise.
8598         (tls_dynamic_gnu2_64, *tls_dynamic_lea_64): Likewise.
8599         (*tls_dynamic_call_64, *tls_dynamic_gnu2_combine_64): Likewise.
8600         * config/i386/predicates.md (tls_modbase_operand): New.
8601         (tp_or_register_operand): New.
8602
8603 2006-01-18  Daniel Berlin  <dberlin@dberlin.org>
8604
8605         * ipa-reference.c (check_operand):  Allow FUNCTION_DECL.
8606         (look_for_address_of): Ditto.
8607         (ipa_init): Walk the function decls.
8608         (static_execute): Don't set readonly on FUNCTION_DECL's.
8609
8610 2006-01-18  Roger Sayle  <roger@eyesopen.com>
8611
8612         * config/i386/i386.md (shift spliter): Fix a a typo in the splitter
8613         for shifts where the source and destination registers are different.
8614
8615 2006-01-18  Paul Brook  <paul@codesourcery.com>
8616
8617         Merge from csl-arm-branch.
8618         2005-03-14  Julian Brown  <julian@codesourcery.com>
8619         * config/arm/lib1funcs.asm (ashldi3): Don't define on SymbianOS.
8620         (aeabi_llsl): Likewise.
8621         (ashrdi3): Likewise.
8622         (aeabi_lasr): Likewise.
8623         (lshrdi3): Likewise.
8624         (aeabi_llsr): Likewise.
8625         2005-03-10  Julian Brown  <julian@codesourcery.com>
8626         * config.gcc: Disable shared libgcc for SymbianOS.
8627         * config/arm/t-symbian (LIB2ADDEH): Include config/arm/pr-support.c.
8628
8629 2006-01-18  DJ Delorie  <dj@redhat.com>
8630
8631         * c-pragma.c (handle_pragma_diagnostic): New.
8632         (init_pragma): Register it.
8633         * doc/extend.texi: Document it.
8634
8635         * diagnostic.def: Add DK_UNSPECIFIED and DK_IGNORED.
8636         * diagnostic.h (diagnostic_classify_diagnostic): Declare.
8637         (diagnostic_context): Add classify_diagnostic[].
8638         * diagnostic.c (diagnostic_count_diagnostic): Don't count warnings
8639         as errors if they're overridden to DK_WARNING.
8640         (diagnostic_initialize): Initialize classify_diagnostic[].
8641         (diagnostic_set_kind_override): New.
8642         (diagnostic_report_diagnostic): Check for kind changes.
8643         * opts.c (common_handle_option): Take lang_mask.  Update callers.
8644         Handle OPT_Werror_.
8645         * common.opt (Werror=): New.
8646         * doc/invoke.texi: Document -Werror=*
8647
8648 2006-01-18  Jeff Law  <law@redhat.com>
8649
8650         * tree-vrp.c (test_for_singularity): Correct test for new
8651         min limit.  Use operand_equal_p rather than pointer equality
8652         for testing if new min/max values are equal.
8653
8654         * tree-ssa-propagate.c (substitute_and_fold): Delay simplifications
8655         using range information until after propagation and folding.
8656
8657 2006-01-18  Richard Henderson  <rth@redhat.com>
8658             Aldy Hernandez  <aldyh@redhat.com>
8659             Jakub Jelinek  <jakub@redhat.com>
8660             Diego Novillo  <dnovillo@redhat.com>
8661
8662         * omp-low.c: New file.
8663         * c-omp.c: New file.
8664
8665 2006-01-18  Richard Henderson  <rth@redhat.com>
8666             Jakub Jelinek  <jakub@redhat.com>
8667             Diego Novillo  <dnovillo@redhat.com>
8668
8669         * doc/invoke.texi: Document -fopenmp.
8670         * tree-dump.h (debug_function): Declare.
8671         * hooks.c (hook_bool_tree_bool_false): New function.
8672         (hook_tree_tree_null): Remove.
8673         (hook_tree_tree_tree_null): New.
8674         * hooks.h: Update to match.
8675         * tree-pretty-print.c (debug_tree_chain): New.
8676         (print_generic_expr): Handle TDF_CHAIN.
8677         (dump_generic_node): Handle BLOCK.
8678         Do not abort with incomplete SWITCH_EXPRs.
8679         Do not dump body of an OpenMP directive if TDF_SLIM is given.
8680         <case OMP_PARALLEL, OMP_FOR, OMP_SECTIONS>: Don't
8681         print space after directive name.
8682         <OMP_FOR>: Handle printing OMP_FOR_PRE_BODY.
8683         Handle OMP_MASTER and OMP_ORDERED.
8684         Handle printing of OMP_BODY just in one place, goto
8685         dump_omp_body in the rest of OMP_* nodes that have
8686         OMP_BODY.
8687         Don't handle clause nodes here.  Update omp statements to
8688         use dump_omp_clauses.
8689         Handle OMP_SINGLE, OMP_SECTIONS, OMP_SECTION,
8690         OMP_CLAUSE_ORDERED, OMP_CLAUSE_SCHEDULE, OMP_ATOMIC,
8691         OMP_CRITICAL, OMP_CLAUSE_NOWAIT, GOMP_CLAUSE_IF,
8692         GOMP_CLAUSE_NUM_THREADS, GOMP_FOR, GOMP_CLAUSE_SHARED,
8693         GOMP_CLAUSE_FIRSTPRIVATE, GOMP_CLAUSE_LASTPRIVATE,
8694         GOMP_CLAUSE_COPYIN and GOMP_CLAUSE_COPYPRIVATE.
8695         Adjust output for GOMP_PARALLEL.
8696         (dump_omp_clauses): New.
8697         (print_declaration): Dump DECL_VALUE_EXPR.
8698         (op_symbol_1): Split out of op_symbol.
8699         (dumping_stmts): Remove.  Update all users.
8700         * cgraph.c (cgraph_analyze_queue): New.
8701         (cgraph_add_new_function): New.
8702         * cgraph.h (cgraph_analyze_queue): Declare.
8703         (cgraph_add_new_function): Declare.
8704         (cgraph_lower_function): Remove.
8705         * tree.c (walk_tree): Walk OMP_CLAUSE_CHAIN of OMP_CLAUSE_*
8706         nodes.  Use switch for all nodes, handle most of IS_EXPR_CODE_CLASS
8707         and TYPE_P nodes in its default clause.
8708         (empty_body_p): New.
8709         (tree_range_check_failed): New.
8710         (build5_stat): New.
8711         * tree.h (OMP_CLAUSE_REDUCTION_INIT,
8712         OMP_CLAUSE_REDUCTION_MERGE,
8713         OMP_CLAUSE_REDUCTION_PLACEHOLDER,
8714         OMP_CLAUSE_PRIVATE_DEBUG,
8715         OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE, OMP_FOR_PRE_BODY,
8716         OMP_MASTER_BODY, OMP_ORDERED_BODY OMP_BODY,
8717         OMP_CLAUSES, OMP_CLAUSE_DECL, OMP_CLAUSE_DEFAULT_KIND,
8718         OMP_CLAUSE_CHAIN, OMP_CLAUSE_OUTER_DECL,
8719         OMP_CLAUSE_INNER_DECL, OMP_CLAUSE_NUM_THREADS_EXPR,
8720         OMP_CLAUSE_IF_EXPR, OMP_CLAUSE_SCHEDULE_CHUNK_EXPR,
8721         OMP_CLAUSE_SCHEDULE_CHUNK_SIZE. OMP_PARALLEL_VAR_INIT,
8722         OMP_PARALLEL_VAR_REDUC, OMP_FOR_VAR_INIT,
8723         OMP_FOR_VAR_LAST, OMP_FOR_VAR_REDUC,
8724         OMP_SECTIONS_VAR_INIT, OMP_SECTIONS_VAR_LAST,
8725         OMP_SECTIONS_VAR_REDUC, OMP_CLAUSE_REDUCTION_CODE
8726         OMP_SINGLE_CLAUSES, OMP_SINGLE_BODY,
8727         OMP_CLAUSE_SCHEDULE_CHUNK_SIZE, OMP_SECTION_BODY,
8728         OMP_CRITICAL_NAME, OMP_CRITICAL_BODY): New.
8729         (TREE_RANGE_CHECK): New.
8730         (empty_body_p): Declare.
8731         (enum omp_clause_default_kind): New.
8732         (build_string_literal): Declare.
8733         (enum omp_clause_schedule_kind, OMP_CLAUSE_SCHEDULE_KIND): New.
8734         (build5_stat, build5): Declare.
8735         * tree-pass.h (TDF_CHAIN): Define.
8736         * tree-pass.h (PROP_gimple_lomp): Define.
8737         (pass_lower_omp): Declare.
8738         * diagnostic.h (debug_tree_chain): Declare.
8739         * builtins.c (get_builtin_sync_mode): Use 0 as last argument to
8740         mode_for_size.
8741         (expand_builtin): Handle sync BUILT_IN_*_16 builtins.
8742         * builtins.c (build_string_literal): Make extern.
8743         * gcc.c (include_spec_function): New.
8744         (static_spec_functions): Add it.
8745         (main): Move load of libgomp.spec ...
8746         (LINK_COMMAND_SPEC): ... here.
8747         (link_gomp_spec): New.
8748         (static_specs): Include it.
8749         (LINK_COMMAND_SPEC): Add link_gomp.
8750         (GOMP_SELF_SPECS): New.
8751         (driver_self_specs): Include it.
8752         (switch_matches): Don't mark inline.
8753         (main): Load libgomp.spec.
8754         * tree-gimple.c (is_gimple_stmt): True for OMP_MASTER,
8755         OMP_ORDERED, OMP_CRITICAL, OMP_SECTIONS, OMP_SECTION,
8756         and OMP_SINGLE, OMP_FOR and OMP_PARALLEL.
8757         * tree-gimple.h (enum omp_parallel): Declare.
8758         (determine_parallel_type): Declare.
8759         (omp_firstprivatize_variable): Declare.
8760         (omp_reduction_init): Declare.
8761         (diagnose_omp_structured_block_errors): Declare.
8762         (struct walk_stmt_info): Add want_return_expr.
8763         (struct walk_stmt_info): Add want_bind_expr, want_locations.
8764         (find_omp_clause): Declare.
8765         (insert_field_into_struct): Declare.
8766         (struct walk_stmt_info): Move from tree-nested.c
8767         (walk_stmts): Declare.
8768         * c-cppbuiltin.c (c_cpp_builtins): If -fopenmp, #define _OPENMP
8769         to 200505.
8770         * cgraphunit.c (cgraph_lower_function): Make static.
8771         (cgraph_finalize_pending_functions): New.
8772         (cgraph_finalize_function): Call it.
8773         (cgraph_finalize_compilation_unit): Likewise.
8774         * builtin-types.def (BT_I16, BT_FN_I16_VPTR_I16,
8775         BT_FN_BOOL_VPTR_I16_I16, BT_FN_I16_VPTR_I16_I16): Add.
8776         (BT_FN_UINT_UINT): New.
8777         (DEF_FUNCTION_TYPE_6, DEF_FUNCTION_TYPE_7,
8778         DEF_FUNCTION_TYPE_VAR_4): Document.
8779         (BT_PTR_LONG, BT_PTR_PTR, BT_FN_BOOL, BT_FN_INT,
8780         BT_FN_VOID_PTRPTR, BT_PTR_FN_VOID_PTR,
8781         BT_FN_BOOL_LONGPTR_LONGPTR, BT_FN_VOID_OMPFN_PTR_UINT,
8782         BT_FN_VOID_OMPFN_PTR_UINT_UINT,
8783         BT_FN_BOOL_LONG_LONG_LONG_LONGPTR_LONGPTR,
8784         BT_FN_BOOL_LONG_LONG_LONG_LONG_LONGPTR_LONGPTR,
8785         BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG,
8786         BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG_LONG): New.
8787         * builtins.def: Update DEF_BUILTIN comment to include COND argument.
8788         Move all DEF_SYNC_BUILTIN () and DEF_GOMP_BUILTIN () builtins
8789         into separate files.
8790         (DEF_GOMP_BUILTIN): New.
8791         (BUILT_IN_OMP_GET_THREAD_NUM, BUILT_IN_GOMP_BARRIER,
8792         BUILT_IN_GOMP_CRITICAL_START, BUILT_IN_GOMP_CRITICAL_END,
8793         BUILT_IN_GOMP_CRITICAL_NAME_START, BUILT_IN_GOMP_CRITICAL_NAME_END,
8794         BUILT_IN_GOMP_LOOP_STATIC_START, BUILT_IN_GOMP_LOOP_DYNAMIC_START,
8795         BUILT_IN_GOMP_LOOP_GUIDED_START, BUILT_IN_GOMP_LOOP_RUNTIME_START,
8796         BUILT_IN_GOMP_LOOP_ORDERED_STATIC_START,
8797         BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_START,
8798         BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_START,
8799         BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_START,
8800         BUILT_IN_GOMP_LOOP_STATIC_NEXT, BUILT_IN_GOMP_LOOP_DYNAMIC_NEXT,
8801         BUILT_IN_GOMP_LOOP_GUIDED_NEXT, BUILT_IN_GOMP_LOOP_RUNTIME_NEXT,
8802         BUILT_IN_GOMP_LOOP_ORDERED_STATIC_NEXT,
8803         BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_NEXT,
8804         BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_NEXT,
8805         BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_NEXT,
8806         BUILT_IN_GOMP_PARALLEL_LOOP_STATIC_START,
8807         BUILT_IN_GOMP_PARALLEL_LOOP_DYNAMIC_START,
8808         BUILT_IN_GOMP_PARALLEL_LOOP_GUIDED_START,
8809         BUILT_IN_GOMP_PARALLEL_LOOP_RUNTIME_START,
8810         BUILT_IN_GOMP_LOOP_END, BUILT_IN_GOMP_LOOP_END_NOWAIT,
8811         BUILT_IN_GOMP_ORDERED_START, BUILT_IN_GOMP_ORDERED_END,
8812         BUILT_IN_GOMP_PARALLEL_START, BUILT_IN_GOMP_PARALLEL_END,
8813         BUILT_IN_GOMP_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_NEXT,
8814         BUILT_IN_GOMP_PARALLEL_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_END,
8815         BUILT_IN_GOMP_SECTIONS_END_NOWAIT, BUILT_IN_GOMP_SINGLE_START,
8816         BUILT_IN_GOMP_SINGLE_COPY_START, BUILT_IN_GOMP_SINGLE_COPY_END): New.
8817         * sync-builtins.def: New file, moved from builtins.def.
8818         * omp-builtins.def: New file, moved from builtins.def.
8819         * c-objc-common.h (LANG_HOOKS_OMP_PREDETERMINED_SHARING): Redefine.
8820         * gimple-low.c (lower_function_body): Clear data.
8821         (lower_stmt): Do not handle COMPOUND_EXPR.
8822         Remove call to print_node_brief.
8823         * c-tree.h (c_finish_omp_clauses): New prototype.
8824         (C_DECL_THREADPRIVATE_P): Define.
8825         (lookup_name_no_remap, c_omp_remap_private): Remove
8826         (c_begin_omp_parallel, c_finish_omp_parallel): Update.
8827         (check_for_loop_decls): Update decl.
8828         (lookup_name_no_remap, c_omp_remap_private): Declare.
8829         (build_indirect_ref, build_modify_expr, pushdecl,
8830         pushdecl_top_level): Move to c-common.h.
8831         * dwarf2out.c (loc_descriptor_from_tree_1): Don't set unsignedp
8832         before the switch, but just in the 2 places that need it.
8833         * c-decl.c (diagnose_mismatched_decls): Do not check for
8834         mismatched thread-local attributes when OLDDECL is marked
8835         threadprivate and NEWDECL has no thread-local attributes.
8836         (merge_decls): Merge C_DECL_THREADPRIVATE_P.
8837         (c_gimple_diagnostics_recursively): Rename from
8838         c_warn_unused_result_recursively.  Invoke
8839         diagnose_omp_structured_block_errors.
8840         (check_for_loop_decls): Return a singular decl found.
8841         * langhooks.c (lhd_omp_predetermined_sharing): Return
8842         OMP_CLAUSE_DEFAULT_SHARED for DECL_ARTIFICIAL decls.
8843         (lhd_omp_firstprivatize_type_sizes): New.
8844         (lhd_omp_assignment): New.
8845         (lhd_omp_predetermined_sharing): New.
8846         * langhooks.h (struct gimplify_omp_ctx): Forward declare.
8847         (struct lang_hooks_for_types): Add
8848         omp_firstprivatize_type_sizes, omp_privatize_by_reference,
8849         omp_predetermined_sharing, omp_disregard_value_expr,
8850         omp_private_debug_clause, omp_clause_default_ctor,
8851         omp_clause_copy_ctor, omp_clause_assign_op, omp_clause_dtor.
8852         (c_finish_omp_clauses): New.
8853         (c_finish_bc_stmt): Diagnose break within omp for.
8854         (c_begin_omp_parallel, c_finish_omp_parallel): New.
8855         (build_unary_op): Return error_mark after reporting
8856         a readonly_error.
8857         (build_modify_expr): Likewise.
8858         * gimplify.c: Include optabs.h and pointer-set.h.
8859         (enum gimplify_omp_var_data): Declare.
8860         (struct gimplify_omp_ctx): Declare.
8861         (struct gimplify_ctx): Add fields prev_context, combined_pre_p
8862         and combined_ctxp.
8863         (gimplify_ctxp, gimplify_omp_ctxp): New local variables.
8864         (push_gimplify_context, pop_gimplify_context): Allow nesting.
8865         (splay_tree_compare_decl_uid): New.
8866         (new_omp_context): New.
8867         (delete_omp_context): New.
8868         (gimple_add_tmp_var): Call omp_add_variable.
8869         (gimplify_bind_expr): Likewise.
8870         (gimplify_var_or_parm_decl): If omp_notice_variable returned
8871         true, disregard DECL_VALUE_EXPR on the decl if any.
8872         (gimplify_expr_in_ctx): New.
8873         (omp_firstprivatize_variable, omp_firstprivatize_type_sizes
8874         omp_add_variable, omp_notice_variable, omp_is_private
8875         gimplify_scan_omp_clauses, gimplify_adjust_omp_clauses_1
8876         gimplify_adjust_omp_clauses, gimplify_omp_parallel
8877         gimplify_omp_for, gimplify_omp_workshare, goa_lhs_expr_p
8878         gimplify_omp_atomic_fetch_op, goa_stabilize_expr
8879         gimplify_omp_atomic_pipeline, gimplify_omp_atomic_mutex
8880         gimplify_omp_atomic): New.
8881         (gimplify_expr): Handle OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
8882         OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
8883         OMP_CRITICAL and OMP_ATOMIC.
8884         (gimplify_body): Verify gimplify_ctxp is empty after gimplification.
8885         * c-pragma.h (enum pragma_kind): Add
8886         PRAGMA_OMP_ATOMIC, PRAGMA_OMP_BARRIER,
8887         PRAGMA_OMP_CRITICAL, PRAGMA_OMP_FLUSH, PRAGMA_OMP_FOR,
8888         PRAGMA_OMP_MASTER, PRAGMA_OMP_ORDERED,
8889         PRAGMA_OMP_PARALLEL, PRAGMA_OMP_PARALLEL_FOR,
8890         PRAGMA_OMP_PARALLEL_SECTIONS, PRAGMA_OMP_SECTION,
8891         PRAGMA_OMP_SECTIONS, PRAGMA_OMP_SINGLE,
8892         PRAGMA_OMP_THREADPRIVATE.
8893         * tree.def (OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
8894         OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
8895         OMP_CRITICAL, OMP_ATOMIC, OMP_CLAUSE_PRIVATE,
8896         OMP_CLAUSE_SHARED, OMP_CLAUSE_FIRSTPRIVATE,
8897         OMP_CLAUSE_LASTPRIVATE, OMP_CLAUSE_REDUCTION,
8898         OMP_CLAUSE_COPYIN, OMP_CLAUSE_COPYPRIVATE,
8899         OMP_CLAUSE_IF, OMP_CLAUSE_NUM_THREADS,
8900         OMP_CLAUSE_SCHEDULE, OMP_CLAUSE_NOWAIT,
8901         OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Define.
8902         * print-tree.c (print_node): Dump DECL_VALUE_EXPR.
8903         * tree-ssa-dce.c (find_control_dependence): Do not assume that
8904         ENTRY_BLOCK_PTR->next_bb == single_succ (ENTRY_BLOCK_PTR).
8905         * tree-nested.c (convert_call_expr): Call walk_body on OMP_BODY for
8906         OpenMP directives.
8907         (struct nesting_info): Add field_map,
8908         suppress_expansion, debug_var_chain.
8909         (create_nesting_tree): Initialize them.
8910         (lookup_field_for_decl): Use field_map.
8911         (get_nonlocal_debug_decl, get_local_debug_decl): New.
8912         (convert_local_omp_clauses): New.
8913         (finalize_nesting_tree_1): Add debug_var_chain to toplevel block.
8914         (walk_body): Split out of walk_function.
8915         (convert_nonlocal_omp_clauses, convert_local_omp_clauses): New.
8916         (convert_nonlocal_reference): Handle omp statements.
8917         (convert_local_reference): Likewise.
8918         (unnest_nesting_tree_1): Split out of finalize_nesting_tree_1.
8919         (unnest_nesting_tree): New.
8920         (lower_nested_functions): Call it.
8921         (insert_field_into_struct): Make extern.
8922         (struct walk_stmt_info): Move to tree-gimple.h.
8923         (walk_stmts): Make extern.
8924         * omp-builtins.def: New file.
8925         * tree-iterator.c (expr_only): Clarify comment.
8926         * c-common.h (pushdecl_top_level, pushdecl,
8927         build_modify_expr, build_indirect_ref,
8928         c_finish_omp_master, c_finish_omp_critical,
8929         c_finish_omp_ordered, c_finish_omp_barrier,
8930         c_finish_omp_atomic, c_finish_omp_flush,
8931         c_finish_omp_for, c_split_parallel_clauses,
8932         omp_clause_default_kind, c_omp_sharing_predetermined,
8933         c_omp_remap_decl): Declare.
8934         * Makefile.in (BUILTINS_DEF): Add omp-builtins.def.
8935         (OBJS-common): Add omp-low.o.
8936         (c-omp.o, omp-low.o): Add.
8937         (gimplify.o): Add dependency on $(OPTABS_H).
8938         (GTFILES): Add omp-low.c.
8939         (gt-stringpool.h): Add.
8940         * tree-cfg.c (set_bb_for_stmt): Do not update the
8941         block-to-labels map if we are currently expanding to RTL.
8942         (tree_node_can_be_shared): Remove unnecessary CONSTANT_CLASS_P
8943         checks.
8944         Handle IDENTIFIER_NODE.
8945         (tree_verify_flow_info): Do not ICE when emitting error
8946         messages about invalid labels.
8947         (dump_function_to_file): Reset CFUN before emitting the body
8948         of the function.
8949         (debug_function): New.
8950         * passes.c (init_optimization_passes): Schedule
8951         pass_lower_omp.
8952         * langhooks-def.h (lhd_omp_predetermined_sharing,
8953         lhd_omp_assignment, lhd_omp_firstprivatize_type_sizes):
8954         Declare.
8955         (LANG_HOOKS_OMP_FIRSTPRIVATIZE_TYPE_SIZES): Define.
8956         (LANG_HOOKS_FOR_TYPES_INITIALIZER): Use it.
8957         (LANG_HOOKS_OMP_PRIVATIZE_BY_REFERENCE,
8958         LANG_HOOKS_OMP_PREDETERMINED_SHARING,
8959         LANG_HOOKS_OMP_DISREGARD_VALUE_EXPR,
8960         LANG_HOOKS_OMP_PRIVATE_DEBUG_CLAUSE,
8961         LANG_HOOKS_OMP_CLAUSE_DEFAULT_CTOR,
8962         LANG_HOOKS_OMP_CLAUSE_COPY_CTOR,
8963         LANG_HOOKS_OMP_CLAUSE_ASSIGN_OP,
8964         LANG_HOOKS_OMP_CLAUSE_DTOR): Define.
8965         (LANG_HOOK_DECLS): Use them.
8966
8967 2006-01-18  Dmitry Kurochkin <dmitry.kurochkin@gmail.com>
8968             Richard Henderson  <rth@redhat.com>
8969             Jakub Jelinek  <jakub@redhat.com>
8970             Diego Novillo  <dnovillo@redhat.com>
8971
8972         * c-parser.c (pragma_omp_clause): Define.
8973         (c_parser_declaration_or_fndef): Document OpenMP syntax.
8974         (c_parser_compound_statement): Likewise.
8975         (c_parser_statement): Likewise.
8976         (c_parser_pragma): Handle omp pragmas.
8977         (OMP_FOR_CLAUSE_MASK, OMP_SECTIONS_CLAUSE_MASK,
8978         OMP_PARALLEL_CLAUSE_MASK, OMP_SINGLE_CLAUSE_MASK): Define.
8979         (c_parser_omp_clause_name, check_no_duplicate_clause,
8980         c_parser_omp_variable_list,
8981         c_parser_omp_var_list_parens, c_parser_omp_clause_copyin,
8982         c_parser_omp_clause_copyprivate,
8983         c_parser_omp_clause_default,
8984         c_parser_omp_clause_firstprivate, c_parser_omp_clause_if,
8985         c_parser_omp_clause_lastprivate,
8986         c_parser_omp_clause_nowait,
8987         c_parser_omp_clause_num_threads,
8988         c_parser_omp_clause_ordered, c_parser_omp_clause_private,
8989         c_parser_omp_clause_reduction,
8990         c_parser_omp_clause_schedule, c_parser_omp_clause_shared,
8991         c_parser_omp_all_clauses, c_parser_omp_structured_block,
8992         c_parser_omp_atomic, c_parser_omp_barrier,
8993         c_parser_omp_critical, c_parser_omp_flush,
8994         c_parser_omp_for_loop, c_parser_omp_for,
8995         c_parser_omp_master, c_parser_omp_ordered,
8996         c_parser_omp_sections_scope, c_parser_omp_sections,
8997         c_parser_omp_parallel, c_parser_omp_single,
8998         c_parser_omp_construct, c_parser_omp_threadprivate): New.
8999         * c-pragma.c (init_pragma): Do omp pragma registration here.
9000         * c.opt (fopenmp): New flag.
9001
9002 2006-01-18  Eric Christopher  <echristo@apple.com>
9003
9004         * gcc.c (GOMP_SELF_SPECS): Bracket in #ifndef/#endif.
9005         * config/darwin.h (GOMP_SELF_SPECS): Define.
9006
9007 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
9008
9009         * rtl.h: Remove the prototype for reg_alloc.
9010
9011 2006-01-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
9012
9013         PR target/25731
9014         * config.gcc (hppa*-*-linux*, hppa[12]*-*-hpux10*, hppa*64*-*-hpux11*,
9015         hppa[12]*-*-hpux11*): Override default shared libgcc version for both
9016         sjlj and dwarf2 exception handling.
9017         * pa/t-hpux-shlib (SHLIB_SOVERSION): New make variable.
9018         Rework to allow overriding SHLIB_EXT and SHLIB_SOVERSION.
9019         * pa/pa.c (function_value): Treat complex and vector types as
9020         aggregates.
9021         (function_arg): Likewise.  Only pass scalar floats in the floating
9022         point argument registers.
9023         * pa/t-slibgcc-dwarf-ver: New file.
9024         * pa/t-slibgcc-sjlj-ver: New file.
9025         * pa/t-slibgcc-elf-ver: Delete file.
9026
9027 2006-01-19  Alan Modra  <amodra@bigpond.net.au>
9028
9029         * config/rs6000/rs6000.c (rs6000_assemble_integer): Correct
9030         unlikely_test_section_p test.
9031
9032 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
9033
9034         * mode-switching.c (optimize_mode_switching): Make it static.
9035         * basic-block.h: Remove the prototype for
9036         optimize_mode_switching.
9037
9038         * modulo-sched.c (sms_schedule): Make it static.
9039         * rtl.h: Remove the prototype for sms_schedule.
9040
9041         * postreload-gcse.c (gcse_after_reload_main): Make it static.
9042         * rtl.h: Remove the prototype for gcse_after_reload_main.
9043
9044         * reg-stack.c (reg_to_stack): Make it static.
9045         * rtl.h: Remove the prototype for reg_to_stack.
9046
9047         * regrename.c (regrename_optimize, copyprop_hardreg_forward):
9048         Make them static.
9049         * rtl.h: Remove the prototypes for regrename_optimize and
9050         copyprop_hardreg_forward.
9051
9052 2006-01-18  Eric Botcazou  <ebotcazou@adacore.com>
9053
9054         * config/alpha/alpha.c (alpha_split_tfmode_pair): Rename into
9055         alpha_split_tmode_pair.  Add 'mode' and 'fixup_overlap' arguments.
9056         Test against the appropriate null constant for the mode.
9057         If 'fixup_overlap' is true, swap the operands if they overlap.
9058         (alpha_split_tfmode_frobsign): Adjust call to alpha_split_tfmode_pair.
9059         * config/alpha/alpha-protos.h (alpha_split_tfmode_pair): Rename into
9060         alpha_split_tmode_pair and adjust for above change.
9061         * config/alpha/alpha.md (movtf_internal): Adjust call to
9062         alpha_split_tfmode_pair and rely on it to swap the operands.
9063         (movti_internal): New insn and post-reload splitter.
9064         (movti): New expander.
9065
9066 2006-01-18  Philippe De Muyter  <phdm@macqel.be>
9067
9068         * config/m68k/m68k.md (*addsi3_5200): Allow addq/subq to memory
9069         operands.
9070
9071 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
9072
9073         * rtlanal.c (global_reg_mentioned_p_1,
9074         global_reg_mentioned_p): Remove.
9075         * rtl.h: Remove the prototype for global_reg_mentioned_p.
9076
9077         * flow.c (initialize_uninitialized_subregs): Make it static.
9078         * rtl.h: Remove the prototype for
9079         initialize_uninitialized_subregs.
9080
9081         * function.c (instantiate_virtual_regs): Make it static.
9082         * function.h: Remove the prototype for
9083         instantiate_virtual_regs.
9084
9085         * regmove.c (regmove_optimize, combine_stack_adjustments):
9086         Make them static.
9087         * rtl.h: Remove the prototypes for regmove_optimize and
9088         combine_stack_adjustments.
9089
9090 2006-01-17  Roger Sayle  <roger@eyesopen.com>
9091
9092         * config/i386/i386.c (COSTS_N_BYTES): New macro.
9093         (size_cost): Encode costs in bytes so that a reg-reg addition is
9094         equivalent to COSTS_N_INSNS(1).
9095         (override_options): Use the size_cost.branch_cost as the default
9096         ix86_branch_cost when optimizing for size.
9097
9098 2006-01-18  Ben Elliston  <bje@au.ibm.com>
9099
9100         * Makefile.in (D32PBIT_FUNCS): New.
9101         (D64PBIT_FUNCS, D128PBIT_FUNCS): Likewise.
9102         (libgcc.mk): Set D32PBIT, D64PBIT, D128PBIT, D32PBIT_FUNCS,
9103         D64PBIT_FUNCS and D128PBIT_FUNCS.
9104         (LIBGCC_DEPS): Include $(D32PBIT), $(D64PBIT), $(D128PBIT).
9105         * mklibgcc.in Bring in the DFP support code if D32PBIT, D64PBIT or
9106         D128PBIT are set.
9107         (decnumber_dep): Define.
9108         * doc/libgcc.texi (Decimal float library routines): New node.
9109         * config/dfp-bit.h, config/dfp-bit.c: New files.
9110
9111 2006-01-18  Ben Elliston  <bje@au.ibm.com>
9112
9113         * expr.c (emit_move_change_mode): Always adjust addresses, not
9114         just during reload.  Copy replacements only during reload.
9115         (emit_move_insn_1): Move MODE_DECIMAL_FLOAT modes by invoking
9116         emit_move_via_integer.
9117
9118 2006-01-17  Shantonu Sen  <ssen@opendarwin.org>
9119
9120         * Makefile.in (check-%, check-consistency): Use $${srcdir}
9121         instead of $(srcdir) and ${srcdir}.
9122
9123 2006-01-17  Richard Earnshaw  <rearnsha@arm.com>
9124
9125         PR target/592
9126         PR middle-end/11135
9127         * arm.h (struct machine_function): Add pic_reg.
9128         * arm.c (arm_pic_register): Make unsigned.
9129         (arm_override_options): Only set arm_pic_register if
9130         TARGET_SINGLE_PIC_BASE.
9131         (use_return_insn): Only test for a pic register if it is fixed.
9132         (arm_compute_save_reg0_reg12_mask): Likewise.
9133         (thumb_compute_save_reg_mask): Likewise.
9134         (legitimate_pic_operand): Factor out some known invariants.
9135         (legitimize_pic_address): If we don't have a fixed pic register,
9136         then set up a pseudo in the function entry sequence.  Handle the
9137         pic base being in a pseudo.
9138         (arm_load_pic_register): Handle the pic register being in a pseudo.
9139         (arm_expand_prologue): Only set up the pic register if it is fixed.
9140         (thumb_expand_prologue): Likewise.
9141         * arm.md (pic_load_addr_based): Handle the pic base being a pseudo.
9142         (pic_load_addr_based_insn): Likewise.
9143         (builtin_setjmp_receiver): Don't restore the pic base if it isn't
9144         fixed.
9145
9146 2006-01-18  Ben Elliston  <bje@au.ibm.com>
9147
9148         * config/rs6000/rs6000.c (rs6000_hard_regno_mode_ok): Reject
9149         decimal float modes for all floating point registers.
9150
9151         * config/rs6000/predicates.md (reg_or_mem_operand): Pair up
9152         match_code "mem" with match_test "macho_lo_sum_memory_operand".
9153
9154 2006-01-17  Jakub Jelinek  <jakub@redhat.com>
9155
9156         PR c/25682
9157         * c-typeck.c (build_unary_op): Fold offsetof-like expressions
9158         even when the pointer is not NULL.
9159
9160 2006-01-16  Ian Lance Taylor  <ian@airs.com>
9161
9162         * common.opt (ftoplevel-reorder): New option.
9163         * cgraph.c (cgraph_asm_nodes): New global variable.
9164         (cgraph_asm_last_node): New static variable.
9165         (cgraph_order): New global variable.
9166         (cgraph_create_node): Set new order field.
9167         (cgraph_varpool_node): Likewise.
9168         (decide_is_variable_needed): Return true if not
9169         flag_toplevel_reorder.
9170         (cgraph_add_asm_node): New function.
9171         * cgraph.h (struct cgraph_node): Add order field.
9172         (struct cgraph_varpool_node): Add order field.
9173         (struct cgraph_asm_node): Define.
9174         (cgraph_asm_nodes, cgraph_order): Declare.
9175         (cgraph_add_asm_node): Declare.
9176         * cgraphunit.c (cgraph_varpool_assemble_decl): New static
9177         function.
9178         (cgraph_varpool_assemble_pending_decls): Call it.
9179         (cgraph_output_pending_asms): New static function.
9180         (cgraph_finalize_compilation_unit): Call it.
9181         (struct cgraph_order_sort): Define.
9182         (cgraph_output_in_order): New static function.
9183         (cgraph_optimize): Call cgraph_output_pending_asms.  Add code for
9184         !flag_toplevel_reorder case.
9185         * c-parser.c: Include "cgraph.h".
9186         (c_parser_asm_definition): Call cgraph_add_asm_node rather than
9187         assemble_asm.
9188         * Makefile.in (CRTSTUFF_CFLAGS): Use -fno-toplevel-reorder rather
9189         than -fno-unit-at-a-time.
9190         * doc/invoke.texi (Option Summary): Mention
9191         -fno-toplevel-reorder.
9192         (Optimize Options): Document -fno-toplevel-reorder.  Mention it in
9193         -funit-at-a-time documentation.
9194
9195 2006-01-17  Hans-Peter Nilsson  <hp@axis.com>
9196             Kazu Hirata  <kazu@codesourcery.com>
9197
9198         * Makefile.in (FUNCTION_H, LAMBDA_H): Use $(TREE_H), not tree.h.
9199
9200 2006-01-17  Kazu Hirata  <kazu@codesourcery.com>
9201
9202         * Makefile.in (FUNCTION_H): New.  Use it instead of
9203         function.h throughout the file.
9204         * function.h: Include tree.h.
9205
9206 2006-01-17  Ben Elliston  <bje@au.ibm.com>
9207
9208         * recog.c: Separate some functions with whitespace.
9209
9210 2006-01-16  Richard Henderson  <rth@redhat.com>
9211
9212         Merge from gomp branch:
9213         * Makefile.in (TREE_INLINE_H): New.  Use it as needed.
9214         * tree-inline.h (struct copy_body_data): Move from tree-inline.c
9215         and rename from struct inline_data.  Rename callee* to dst*;
9216         caller* to src*; add copy_decl hook, transform_call_graph_edges,
9217         transform_new_cfg, transform_return_to_modify, and
9218         transform_lang_insert_block flags; remove cloning_p, versioning_p,
9219         update_clones_p.
9220         (copy_body_r, insert_decl_map, remap_decl, remap_type): Declare.
9221         (copy_decl_for_dup): Remove.
9222         * tree-inline.c (struct inline_data): Move to header.
9223         (insert_decl_map): Export.
9224         (remap_decl): Update for member name changes.  Use copy_decl hook.
9225         Allow for replacement to be a non-decl.  Remove dead code.
9226         (remap_type_1): Check for existing mapping.
9227         (remap_type): Export.
9228         (remap_decls): Update for member name changes.
9229         (remap_block, copy_bb, copy_cfg_body, copy_generic_body): Likewise.
9230         (copy_body, setup_one_parameter, declare_return_variable): Likewise.
9231         (expand_call_inline, optimize_inline_calls, clone_body): Likewise.
9232         (copy_tree_r, mark_local_for_remap_r, unsave_expr_now): Likewise.
9233         (tree_function_versioning, build_duplicate_type): Likewise.
9234         (copy_body_r): Likewise.  Export.
9235         (copy_decl_for_dup): Split into ...
9236         (copy_decl_for_dup_finish, copy_decl_to_var,
9237         copy_decl_no_change, copy_decl_maybe_to_var): ... these.
9238         (replace_ref_tree, inlining_p): Remove.
9239
9240 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
9241
9242         * ifcvt.c (if_convert): Make it static.
9243         * rtl.h: Remove the prototype for if_convert.
9244
9245         * local-alloc.c (local_alloc): Make it static.
9246         * rtl.h: Remove the prototype for local_alloc.
9247
9248         * loop.c (loop_optimize): Make it static.
9249         * cfgloop.h: Remove the prototype for loop_optimize.
9250         * rtl.h: Likewise.
9251
9252 2006-01-16  DJ Delorie  <dj@redhat.com>
9253
9254         * reload.c (reg_overlap_mentioned_for_reload_p): Handle subregs of
9255         mems.
9256
9257 2006-01-16  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
9258
9259         * pa.md: Disparage copies between general and floating-point registers
9260         in 32-bit move patterns.
9261
9262 2006-01-16  H.J. Lu  <hongjiu.lu@intel.com>
9263
9264         PR testsuite/25741
9265         * Makefile.in (check-%): Depend on site.exp instead of
9266         $(TESTSUITEDIR)/site.exp. Run "runtest" in separate language
9267         directories.
9268
9269 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
9270
9271         * global.c (global_alloc): Make it static.
9272         * rtl.h: Remove the prototype for global_alloc.
9273
9274 2006-01-16  Richard Guenther  <rguenther@suse.de>
9275
9276         * tree-ssa-alias.c (struct used_part): Add write_only field.
9277         (get_or_create_used_part_for): Initialize it to true.
9278         (create_overlap_variables_for): Don't create structure variables
9279         for structures that only are written to.
9280         (find_used_portions): Handle MODIFY_EXPR to track whether a
9281         structure is only written to.
9282
9283 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
9284
9285         * bb-reorder.c (partition_hot_cold_basic_blocks): Make it
9286         static.
9287         * basic-block.h: Remove the prototype for
9288         partition_hot_cold_basic_blocks.
9289
9290 2006-01-16  Rafael Ãvila de EspÃï¿½ndola <rafael.espindola@gmail.com>
9291
9292         * cppspec.c (lang_specific_spec_functions): Remove.
9293         * gcc.c (lookup_spec_function): Use static_spec_functions directly.
9294         * gcc.h (lang_specific_spec_functions): Remove.
9295         * gccspec.c (lang_specific_spec_functions): Remove.
9296
9297 2006-01-16  Paolo Bonzini  <bonzini@gnu.org>
9298
9299         * combine.c (record_value_for_reg): Invalidate registers
9300         if INSN is null.
9301         (record_dead_and_set_regs_1): Likewise, by passing them to
9302         record_value_for_reg.
9303         (record_dead_and_set_regs): Invalidate stores made by a
9304         call.  We do not combine across a call, but we still
9305         relied on equivalences.
9306
9307 2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>
9308
9309         * tree-vrp.c (extract_range_from_binary_expr): Cope with
9310         vrp_int_const_binop returning non-constant nodes.
9311
9312 2006-01-16  Paul Brook  <paul@codesourcery.com>
9313
9314         * config/m68k/m68k.c (output_move_const_into_data_reg):
9315         Output correct mnemonic for mvz and mvs.
9316
9317 2006-01-16  Gabor Loki  <loki@gcc.gnu.org>
9318
9319         * rtl-factoring.c: Add sequence abstraction algorithm.
9320         * cfgcleanup.c (outgoing_edges_match): Extra checks.
9321         (try_crossjump_to_edge): Avoid deleting preserve label when redirecting
9322         ABNORMAL edges.
9323         (block_has_preserve_label): New function.
9324         * common.opt: Register new pass.
9325         * Makefile.in: Ditto.
9326         * passes.c: Ditto.
9327         * timevar.def: Ditto.
9328         * tree-pass.h: Ditto.
9329         * emit-rtl.c (make_jump_insn_raw): Remove forward decl.
9330         * rtl.h (make_jump_insn_raw): Add forward decl.
9331         * doc/invoke.texi: Add documentation for -frtl-abstract-sequences.
9332
9333 2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>
9334             Roger Sayle  <roger@eyesopen.com>
9335
9336         * fold-const.c (fold_minmax): New static function.
9337         (fold_binary) <MIN_EXPR>: Call it.
9338         <MAX_EXPR>: Likewise.
9339         * stor-layout.c (place_field): Use DECL_SIZE consistently
9340         in the computation of the new record size.
9341
9342 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
9343
9344         * cse.c (cse_condition_code_reg): Make it static.
9345         * rtl.h: Remove the prototype for cse_condition_code_reg.
9346
9347         * combine.c (combine_instructions): Make it static.
9348         * rtl.h: Remove the prototype for combine_instructions.
9349
9350 2006-01-15  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
9351
9352         PR target/25168
9353         * tree.c (get_file_function_name_long): Concatenate the first global
9354         object name with a string derived from the input filename of the object
9355         for type "F".
9356
9357 2006-01-16  Ben Elliston  <bje@au.ibm.com>
9358
9359         * config/i386/winnt-stubs.c: Update FSF address.
9360         * config/xtensa/ieee754-df.S: Ditto.
9361         * config/xtensa/ieee754-sf.S: Ditto.
9362
9363 2006-01-14  Ian Lance Taylor  <ian@airs.com>
9364
9365         * ifcvt.c (noce_init_if_info): New static function, broken out of
9366         noce_process_if_block.
9367         (noce_process_if_block): Call noce_init_if_info.
9368         (check_cond_move_block): New static function.
9369         (cond_move_process_if_block): New static function.
9370         (process_if_block): Call cond_move_process_if_block.
9371
9372 2006-01-15  Kazu Hirata  <kazu@codesourcery.com>
9373
9374         * cselib.c (hash_table): Rename to cselib_hash_table.
9375         (cselib_clear_table, discard_useless_values,
9376         remove_useless_values, cselib_lookup_mem, cselib_lookup,
9377         cselib_init, cselib_finish): Adjust uses of hash_table.
9378
9379 2006-01-14  Kazu Hirata  <kazu@codesourcery.com>
9380
9381         PR tree-optimization/25485
9382         * tree-vrp.c (extract_range_from_binary_expr): Handle cases
9383         where one of the operands of TRUTH_AND_EXPR and TRUTH_OR_EXPR
9384         is known to be false and true, respectively.
9385
9386 2006-01-14  Richard Guenther  <rguenther@suse.de>
9387
9388         PR tree-optimization/22548
9389         PR tree-optimization/22555
9390         PR tree-optimization/22501
9391         * Makefile.in (tree-ssa-structalias.o): Depend on $(PARAMS_H).
9392         * params.def (salias-max-array-elements): New parameter.
9393         * params.h (SALIAS_MAX_ARRAY_ELEMENTS): Define.
9394         * doc/invoke.texi (salias-max-array-elements): Document.
9395         * tree-flow-inline.h (var_can_have_subvars): We also handle
9396         arrays now.
9397         * tree-ssa-alias.c (find_used_portions): Handle ARRAY_REF like
9398         COMPONENT_REF.
9399         * tree-ssa-structalias.c (params.h): Include.
9400         (push_fields_onto_fieldstack): Handle ARRAY_TYPE.
9401         (find_func_aliases): Handle multiple constraints from ARRAY_REF.
9402         (get_constraint_for): For ADDR_EXPR operating on something
9403         containing an ARRAY_REF, add all subvars to the solution.
9404         (handle_ptr_arith): Handle ARRAY_TYPE like RECORD_TYPE types.
9405         * tree-ssa-operands.c (parse_ssa_operands): Handle ARRAY_REF
9406         for creating MUST_DEFs.
9407         (get_expr_operands): Treat ARRAY_REF like COMPONENT_REF wrt subvars.
9408
9409 2006-01-14  Zdenek Dvorak <dvorakz@suse.cz>
9410
9411         * tree-ssa-loop-niter.c (number_of_iterations_cond): Split into several
9412         functions.
9413         (number_of_iterations_ne, number_of_iterations_lt_to_ne,
9414         assert_no_overflow_lt, assert_loop_rolls_lt, number_of_iterations_lt,
9415         number_of_iterations_le): New functions.
9416         (number_of_iterations_special): Removed.
9417         (number_of_iterations_exit): Do not use number_of_iterations_special.
9418         * tree.c (unsigned_type_for): Always return integer type.
9419
9420 2006-01-14  Steven Bosscher  <stevenb.gcc@gmail.com>
9421         Richard Guenther  <rguenther@suse.de>
9422
9423         PR rtl-optimization/24257
9424         * gcse.c (find_moveable_store): Only consider a store movable
9425         when the SET_SRC of the insn can be assigned to a register.
9426
9427 2006-01-14  Ian Lance Taylor  <ian@airs.com>
9428
9429         * tree.c (tree_not_class_check_failed): New function.
9430         * tree.h (NON_TYPE_CHECK): Call tree_not_class_check_failed.
9431         (tree_not_class_check_failed): Declare.
9432
9433 2006-01-13  Ian Lance Taylor  <ian@airs.com>
9434
9435         * reload1.c (do_output_reload): Add assertion rejecting a
9436         CALL_INSN.
9437
9438 2006-01-13  Adam Nemet  <anemet@caviumnetworks.com>
9439
9440         * combine.c (struct reg_stat): Add new fields truncation_label and
9441         truncated_to_mode.
9442         (record_value_for_reg): Reset truncated_to_mode.
9443         (record_truncated_value): New function.
9444         (check_promoted_subreg): Call it.  Rename to check_conversions.
9445         (combine_instructions): Rename check_promoted_subreg to
9446         check_conversions.
9447         (reg_truncated_to_mode): New function.
9448         (make_extraction): Use it.  Check TRULY_NOOP_TRUNCATION.
9449         (gen_lowpart_or_truncate): New function.
9450         (force_to_mode): Use it instead of gen_lowpart.
9451
9452 2006-01-13  Diego Novillo  <dnovillo@redhat.com>
9453
9454         * tree-ssa-alias.c (add_type_alias): Fix typo.  Test whether
9455         VAR is a tag, not its type tag.
9456
9457 2006-01-13  Alexandre Oliva  <aoliva@redhat.com>
9458
9459         * config/i386/sse.md (*vec_extractv2di_1_sse2): Reorder
9460         alternatives to match style of other entries.
9461         (*vec_extractv2di_1_sse): Likewise.  Fix mode attr.
9462
9463 2006-01-13  Daniel Berlin  <dberlin@dberlin.org>
9464
9465         PR tree-optimization/25771
9466         * tree-ssa-pre.c (insert_extra_phis): Don't insert merges of abnormal
9467         SSA_NAMES.
9468
9469 2006-01-13  Andrew Pinski  <pinskia@physics.uc.edu>
9470
9471         PR tree-opt/24365
9472         * tree-inline.c (declare_return_variable): If the return variable
9473         was marked as a non gimple complex, set the return slot variable
9474         to be a non gimple comple variable.
9475
9476 2006-01-13  Richard Guenther  <rguenther@suse.de>
9477
9478         * builtins.c (expand_builtin_sincos): New function.
9479         (expand_builtin_mathfn_3): Remove dead code, sin and cos
9480         do not set errno.
9481         (expand_builtin): Expand sincos using expand_builtin_sincos.
9482
9483 2006-01-12  DJ Delorie  <dj@redhat.com>
9484
9485         * config/m32c/shift.md: Rewrite: Allow arbitrary operands for
9486         shift counts, separate SI shifts for m32c vs m16c, pass shift type
9487         so that constant shifts can be split.
9488         * config/m32c/m32c.c (m32c_const_ok_for_constraint_p): Add In6.
9489         (m32c_valid_pointer_mode): Make static.
9490         (shift_gen_func_for): New.
9491         (m32c_prepare_shift): Use it.  Split large const shifts into
9492         multiple shifts.
9493         * config/m32c/predicates.md (shiftcount_operand): Allow more
9494         general operands.
9495         (longshiftcount_operand): New.
9496         * doc/md.texi (Machine Constraints): Document In6.
9497
9498 2006-01-13  Ben Elliston  <bje@au.ibm.com>
9499
9500         * doc/tm.texi (Data Output): Add REAL_VALUE_TO_TARGET_DECIMAL32,
9501         REAL_VALUE_TO_TARGET_DECIMAL64 and REAL_VALUE_TO_TARGET_DECIMAL128
9502         documentation.
9503
9504 2006-01-12  Daniel Berlin  <dberlin@dberlin.org>
9505
9506         * tree-ssa-operands.c (add_call_clobber_ops): Use SFT_PARENT_VAR
9507         to try to avoid clobbering pieces of structures when we know
9508         something about the whole structure.
9509         * tree-ssa-alias.c (create_sft): Set SFT_PARENT_VAR
9510
9511 2006-01-13  Ben Elliston  <bje@au.ibm.com>
9512
9513         * doc/rtl.texi (Insns): Remove statement that libcalls cannot
9514         return in memory, as this is no limitation is no longer present.
9515
9516 2006-01-12  DJ Delorie  <dj@redhat.com>
9517
9518         * config/m32c/addsub.md (addhi3): Add two more alternatives, for
9519         mova with fb, and for fb+0 -> An.
9520
9521         * config/m32c/mov.md (peephole2): Fix enabling logic.
9522
9523         * config/m32c/m32c.h (CTOR_LIST_BEGIN, CTOR_LIST_END,
9524         DTOR_LIST_BEGIN, DTOR_LIST_END, CTORS_SECTION_ASM_OP,
9525         DTORS_SECTION_ASM_OP, INIT_ARRAY_SECTION_ASM_OP,
9526         FINI_ARRAY_SECTION_ASM_OP): Define.
9527
9528         * config/m32c/m32c.c (m32c_legitimize_address): Remove temporary
9529         variable.
9530         (m32c_legitimize_reload_address): New logic to reload FB to An.
9531         (m32c_output_reg_push): Add newline.
9532         (m32c_output_reg_pop): Likewise.
9533
9534 2006-01-12  Ulrich Weigand  <uweigand@de.ibm.com>
9535
9536         * struct-equiv.c (find_dying_inputs): Fix off-by-one bug.
9537
9538 2006-01-11  Andrew Pinski  <pinskia@physics.uc.edu>
9539
9540         * config/i386/darwin.h (SUBTARGET_ENCODE_SECTION_INFO): Define.
9541
9542 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
9543
9544         * config/sh/predicates.md (sh_rep_vec): Add parallel to
9545         match_code.
9546
9547 2006-01-11  Ben Elliston  <bje@au.ibm.com>
9548
9549         * rtlanal.c (find_reg_note): Assert insn is not null.
9550
9551 2006-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>
9552
9553         * df-scan.c (df_hard_reg_init): Move declaration of i outside
9554         ifdef.
9555
9556 2006-01-11  Jeff Law  <law@redhat.com>
9557
9558         * tree-ssa-threadupdate.c (threaded_edges): New VEC to
9559         hold edge pairs.
9560         (mark_threaded_blocks, register_jump_thread): New functions.
9561         (thread_through_all_blocks): Remove unwanted argument.  No
9562         longer rely on e->aux to communicate thread target info.
9563         Call mark_threaded_blocks.  Release the threaded_blocks
9564         bitmap and threaded_edges vector when complete.
9565         * tree-ssa-dom.c (struct edge_info): Remove redirection_target field.
9566         (threaded_blocks): Remove.
9567         (tree_ssa_dominator_optimize): Remove initialization and
9568         finalization of threaded_blocks.  Simplify call to
9569         thread_through_all_blocks.
9570         (thread_across_edge): Call register_jump_thread rather than
9571         storing thread information into e->aux.
9572         (free_all_edge_infos): Simplify now that e->aux is no longer
9573         used to communicate with thread_through_all_blocks.
9574         * tree-flow.h (thread_through_all_blocks): Update prototype.
9575         (register_jump_thread): Prototype.
9576
9577 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
9578
9579         * df-core.c (df_compact_blocks, df_bb_replace): Use
9580         SET_BASIC_BLOCK instead of BASIC_BLOCK.
9581
9582 2006-01-11  Richard Guenther  <rguenther@suse.de>
9583
9584         PR tree-optimization/25734
9585         * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Do not
9586         stop propagation after successful propagation to the LHS.
9587
9588 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
9589
9590         * basic-block.h (control_flow_graph): Change the type of
9591         x_basic_block_info to VEC(basic_block,gc) *.
9592         (BASIC_BLOCK_FOR_FUNCTION, BASIC_BLOCK): Adjust the uses of
9593         basic_block_info.
9594         (SET_BASIC_BLOCK): New.
9595         * cfg.c (compact_blocks, expunge_block): Use SET_BASIC_BLOCK
9596         instead of BASIC_BLOCK when assigning to BASIC_BLOCK.
9597         * cfgbuild.c (find_basic_blocks): Likewise.
9598         * cfglayout.c (fixup_reorder_chain): Likewise.
9599         * cfgrtl.c (create_basic_block_structure,
9600         rtl_create_basic_block): Likewise.
9601         * ifcvt.c (find_if_case_1): Likewise.
9602         * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb):
9603         Likewise.
9604
9605 2006-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>
9606
9607         * Makefile.in: Removed rotted odf.c entry.
9608
9609 2006-01-11  Hans-Peter Nilsson  <hp@axis.com>
9610
9611         PR target/25706
9612         * config/cris/cris.md ("*extopqihi_side", "*extop<mode>si_side")
9613         ("*extop<mode>si_swap_side_biap", "*extop<mode>si_swap_side",
9614         ("*extopqihi", "*extop<mode>si", "*extop<mode>si_swap"): Use %E
9615         output pattern modifier, not %e.
9616         * config/cris/cris.c (cris_op_str): Update comment about pattern
9617         modifier.
9618         (cris_print_operand) <case 'e'>: Clear cris_output_insn_is_bound
9619         before falling through into...
9620         <case 'E'>: Redefined from old 'e' case.
9621
9622 2006-01-11  Jan Hubicka  <jh@suse.cz>
9623
9624         PR target/25042
9625         * i386.c (ix86_init_mmx_sse_builtins): Do not delcare float128
9626
9627 2006-01-11  Jan Hubicka  <jh@suse.cz>
9628
9629         * i386.h (TARGET_DECOMPOSE_LEA): Kill.
9630         * i386.c (x86_decompose_lea): Kill.
9631         (ix86_rtx_costs): Kill.
9632
9633 2006-01-11  Jan Hubicka  <jh@suse.cz>
9634
9635         * cgraph.c (cgraph_insert_node_to_hashtable): New function.
9636         * cgraph.h (cgraph_node): Add inline_decl.
9637         (cgraph_insert_node_to_hashtable): Declare.
9638         (save_inline_function_body): Declare.
9639         * cgraphunit.c (verify_cgraph_node): Inline edges might point to inline
9640         clones.
9641         (cgraph_preserve_function_body_p): Do not presrve when dump is enabled.
9642         (cgraph_function_versioning): Update call of tree_function_versioning.
9643         (save_inline_function_body): New function.
9644         * function.h (struct function): Kill saved_eh, saved_cfg, saved_args,
9645         saved_static_chain_decl, saved_blocks and saved-unexpanded_var_list.
9646         * ipa-inline.c (cgraph_mark_inline_edge): Look for inline clones.
9647         (cgraph_default_inline_p): Likewise.
9648         (cgraph_decide_inlining_incrementally): Likewise.
9649         * tree-inline.c (inline_data): Kill saving_p add update_clones_p.
9650         (copy_bb): Kill saving; do updating of clones.
9651         (copy_cfg_body): Kill saving.
9652         (initialize_inlined-parameters): Likewise.
9653         (expand_call_inline): Likewise.
9654         (save_body): Kill.
9655         (tree_function_versioning): New parameter "update_clones".
9656         (inlining_p): Kill saving.
9657         * tree-inline.h (tree_function_versioning): Update prototype.
9658         * tree-optimize.c (tree_rest_of_compilation): Use clonning instead of
9659         saving.
9660
9661 2006-01-11  Ian Lance Taylor <ian@airs.com>
9662
9663         * combine.c (struct undo): Remove is_int.  Enumify types of undos.
9664         Allow undoing set of machine mode.
9665         (do_SUBST): Use enums instead of is_int.
9666         (do_SUBST_MODE): New function.
9667         (SUBST_MODE): New macro.
9668         (try_combine): Use SUBST_MODE/PUT_MODE instead of generating a new
9669         reg and trying to replace reg_regno_rtx with a new register.
9670         (undo_all): Use new enums, handle undoing a PUT_MODE change.
9671         (simplify_set): Use SUBST_MODE.
9672         (distribute_notes): Remove code that tried to update reg notes
9673         for regno_reg_rtx changes.
9674
9675 2006-01-11  Paolo Bonzini  <bonzini@gnu.org>
9676
9677         PR tree-optimization/23109
9678         PR tree-optimization/23948
9679         PR tree-optimization/24123
9680
9681         * Makefile.in (tree-ssa-math-opts.o): Adjust dependencies.
9682         * tree-cfg.c (single_noncomplex_succ): New.
9683         * tree-flow.h (single_noncomplex_succ): Declare it.
9684         * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
9685         * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
9686         (struct occurrence, occ_head, occ_pool, is_divide_by, compute_merit,
9687         insert_bb, register_division_in, insert_reciprocals,
9688         replace_reciprocal, free_bb): New.
9689         (execute_cse_reciprocals_1): Rewritten.
9690         (execute_cse_reciprocals): Adjust calls to execute_cse_reciprocals_1.
9691         Do not commit any edge insertion.  Always compute dominators and
9692         create the allocation pool.
9693         * target-def.h (TARGET_MIN_DIVISIONS_FOR_RECIP_MUL): New.
9694         * target.h (struct gcc_target): Add min_divistions_for_recip_mul.
9695         * targhooks.c (default_min_divistions_for_recip_mul): New.
9696         * targhooks.h (default_min_divistions_for_recip_mul): New prototype.
9697         * passes.c (init_optimization_passes): Run recip after tree loop
9698         optimizations.
9699         * doc/tm.texi (Misc): Document TARGET_MIN_DIVISIONS_FOR_RECIP_MUL.
9700
9701 2006-01-11  Danny Berlin <dberlin@dberlin.org>
9702             Kenneth Zadeck <zadeck@naturalbridge.com>
9703
9704         * df.h (DF_SCAN, DF_RU, DF_RD, DF_LR, DF_UR, DF_UREC, DF_CHAIN,
9705         DF_RI, DF_LAST_PROBLEM_PLUS1, DF_DU_CHAIN, DF_UD_CHAIN,
9706         DF_REF_TYPE_NAMES, DF_HARD_REGS, DF_EQUIV_NOTES, DF_SUBREGS,
9707         DF_SCAN_BB_INFO, DF_RU_BB_INFO, DF_RD_BB_INFO, DF_LR_BB_INFO,
9708         DF_UR_BB_INFO, DF_UREC_BB_INFO, DF_LIVE_IN, DF_LIVE_OUT,
9709         DF_RA_LIVE_IN, DF_RA_LIVE_OUT, DF_UPWARD_LIVE_IN,
9710         DF_UPWARD_LIVE_OUT, DF_REF_REAL_REG, DF_REF_REGNO,
9711         DF_REF_REAL_LOC, DF_REF_REG, DF_REF_LOC, DF_REF_BB, DF_REF_BBNO,
9712         DF_REF_INSN, DF_REF_INSN_UID, DF_REF_TYPE, DF_REF_CHAIN,
9713         DF_REF_ID, DF_REF_FLAGS, DF_REF_NEXT_REG, DF_REF_PREV_REG,
9714         DF_REF_NEXT_REF, DF_REF_DATA, DF_REF_REG_DEF_P, DF_REF_REG_USE_P,
9715         DF_REF_REG_MEM_STORE_P, DF_REF_REG_MEM_LOAD_P, DF_REF_REG_MEM_P,
9716         DF_DEFS_SIZE, DF_DEFS_GET, DF_DEFS_SET, DF_USES_SIZE, DF_USES_GET,
9717         DF_USES_SET, DF_REG_SIZE, DF_REG_DEF_GET, DF_REG_DEF_SET,
9718         DF_REG_USE_GET, DF_REG_USE_SET, DF_REGNO_FIRST_DEF,
9719         DF_REGNO_LAST_USE, DF_INSN_SIZE, DF_INSN_GET, DF_INSN_SET,
9720         DF_INSN_CONTAINS_ASM, DF_INSN_LUID, DF_INSN_DEFS, DF_INSN_USES,
9721         DF_INSN_UID_GET, DF_INSN_UID_LUID, DF_INSN_UID_DEFS,
9722         DF_INSN_UID_USES, DF_SCAN_INITIAL, DF_SCAN_GLOBAL,
9723         DF_SCAN_POST_ALLOC): New macros.
9724         (df_flow_dir, df_ref_type, df_ref_flags, df_alloc_function,
9725         df_free_bb_function, df_local_compute_function, df_init_function,
9726         df_dataflow_function, df_confluence_function_0,
9727         df_confluence_function_n, df_transfer_function,
9728         df_finalizer_function, df_free_function, df_dump_problem_function,
9729         df_problem, dataflow, df_insn_info, df_reg_info, df_ref, df_link,
9730         df_ref_info, df, df_map, df_scan_bb_info, df_ru_bb_info,
9731         df_ru_bb_info, df_rd_bb_info, df_lr_bb_info, df_ur_bb_info,
9732         df_urec_bb_info, ) New types.
9733         (df_invalidated_by_call, df_all_hard_regs, df_state) New public
9734         variables.
9735         (df_init, df_add_problem, df_set_blocks, df_finish, df_analyze,
9736         df_analyze_simple_change_some_blocks,
9737         df_analyze_simple_change_one_block, df_compact_blocks,
9738         df_bb_replace, df_bb_regno_last_use_find,
9739         df_bb_regno_first_def_find, df_bb_regno_last_def_find,
9740         df_insn_regno_def_p, df_find_def, df_find_use,
9741         df_iterative_dataflow, df_dump, df_chain_dump, df_refs_chain_dump,
9742         df_regs_chain_dump, df_insn_debug, df_insn_debug_regno,
9743         df_regno_debug, df_ref_debug, debug_df_insn, debug_df_regno,
9744         debug_df_reg, debug_df_defno, debug_df_useno, debug_df_ref,
9745         debug_df_chain, df_get_dependent_problem, df_chain_create,
9746         df_chain_unlink, df_chain_copy, df_get_live_in, df_get_live_out,
9747         df_grow_bb_info, df_chain_dump, df_print_bb_index,
9748         df_ru_add_problem, df_ru_get_bb_info, df_rd_add_problem,
9749         df_rd_get_bb_info, df_lr_add_problem, df_lr_get_bb_info,
9750         df_ur_add_problem, df_ur_get_bb_info, df_urec_add_problem,
9751         df_urec_get_bb_info, df_chain_add_problem, df_ri_add_problem,
9752         df_reg_lifetime, df_scan_get_bb_info, df_scan_add_problem,
9753         df_rescan_blocks, df_ref_create, df_get_artificial_defs,
9754         df_get_artificial_uses, df_reg_chain_create, df_reg_chain_unlink,
9755         df_ref_remove, df_insn_refs_delete, df_refs_delete,
9756         df_reorganize_refs, df_set_state, df_hard_reg_init,
9757         df_read_modify_subreg_p) New public functions.
9758         * df-core.c: The core dataflow solver and glue routines for rtl
9759         dataflow.
9760         (df_init, df_add_problem, df_set_blocks, df_finish,
9761         df_hybrid_search_forward, df_hybrid_search_backward,
9762         df_iterative_dataflow, df_prune_to_subcfg, df_analyze_problem,
9763         df_analyze, df_get_bb_info, df_set_bb_info, df_bb_replace,
9764         df_bb_regno_last_use_find, df_bb_regno_first_def_find,
9765         df_bb_regno_last_def_find, df_insn_regno_def_p, df_find_def,
9766         df_reg_defined, df_find_use, df_reg_used, df_dump,
9767         df_refs_chain_dump, df_regs_chain_dump, df_insn_debug,
9768         df_insn_debug_regno, df_regno_debug, df_ref_debug, debug_df_insn,
9769         debug_df_reg, debug_df_regno, debug_df_ref debug_df_defno,
9770         debug_df_useno, reset_df_after_reload): New functions.
9771         * df-scan.c: The scanning fuctions, once in df.c, completely
9772         rewritten so that they now fully model the functionality of
9773         register usage at the backend.
9774         (df_scan_free_internal, df_scan_get_bb_info, df_scan_set_bb_info,
9775         df_scan_free_bb_info, df_scan_alloc, df_scan_free, df_scan_dump,
9776         df_scan_add_problem, df_grow_reg_info, df_grow_ref_info,
9777         df_grow_insn_info, df_rescan_blocks, df_ref_create,
9778         df_get_artificial_defs, df_get_artificial_uses,
9779         df_reg_chain_create, df_ref_unlink, df_reg_chain_unlink,
9780         df_ref_remove, df_insn_create_insn_record, df_insn_refs_delete,
9781         df_refs_delete, df_reorganize_refs, df_set_state,
9782         df_ref_create_structure, df_ref_record, df_read_modify_subreg_p,
9783         df_def_record_1, df_defs_record, df_uses_record,
9784         df_insn_contains_asm_1, df_insn_contains_asm, df_insn_refs_record,
9785         df_has_eh_preds, df_bb_refs_record, df_refs_record, df_mark_reg,
9786         df_record_exit_block_uses, df_hard_reg_init): New functions.
9787
9788         * df-problems.c: Seven concrete dataflow problems that use the
9789         scanning in df-scan.c and are solved by the engine in df-core.c.
9790         (df_get_dependent_problem, df_chain_create, df_chain_unlink,
9791         df_chain_copy, df_get_live_in, df_get_live_out, df_grow_bb_info,
9792         df_chain_dump, df_print_bb_index, df_ref_bitmap, df_set_seen,
9793         df_unset_seen, df_ru_get_bb_info, df_ru_set_bb_info,
9794         df_ru_free_bb_info, df_ru_alloc,
9795         df_ru_bb_local_compute_process_def,
9796         df_ru_bb_local_compute_process_use, df_ru_bb_local_compute,
9797         df_ru_local_compute, df_ru_init_solution, df_ru_confluence_n,
9798         df_ru_transfer_function, df_ru_free, df_ru_dump,
9799         df_ru_add_problem, df_rd_get_bb_info, df_rd_set_bb_info,
9800         df_rd_free_bb_info, df_rd_alloc,
9801         df_rd_bb_local_compute_process_def, df_rd_bb_local_compute,
9802         df_rd_local_compute, df_rd_init_solution, df_rd_confluence_n,
9803         df_rd_transfer_function, df_rd_free, df_rd_dump,
9804         df_rd_add_problem, df_lr_get_bb_info, df_lr_set_bb_info,
9805         df_lr_free_bb_info, df_lr_alloc, df_lr_bb_local_compute,
9806         df_lr_local_compute, df_lr_init, df_lr_confluence_0,
9807         df_lr_confluence_n, df_lr_transfer_function, df_lr_free,
9808         df_lr_dump, df_lr_add_problem, df_ur_get_bb_info,
9809         df_ur_set_bb_info, df_ur_free_bb_info, df_ur_alloc,
9810         df_ur_bb_local_compute, df_ur_local_compute, df_ur_init,
9811         df_ur_local_finalize, df_ur_confluence_n, df_ur_transfer_function,
9812         df_ur_free, df_ur_dump, df_ur_add_problem, df_urec_get_bb_info,
9813         df_urec_set_bb_info, df_urec_free_bb_info, df_urec_alloc,
9814         df_urec_mark_reg_change, df_urec_check_earlyclobber,
9815         df_urec_mark_reg_use_for_earlyclobber,
9816         df_urec_mark_reg_use_for_earlyclobber_1, df_urec_bb_local_compute,
9817         df_urec_local_compute, df_urec_init, df_urec_local_finalize,
9818         df_urec_confluence_n, df_urec_transfer_function, df_urec_free,
9819         df_urec_dump, df_urec_add_problem, df_chain_alloc,
9820         df_chain_create_bb_process_use, df_chain_create_bb,
9821         df_chain_finalize, df_chain_free, df_chains_dump,
9822         df_chain_add_problem, df_ri_alloc, df_ri_bb_compute,
9823         df_ri_compute, df_ri_free, df_ri_dump, df_ri_add_problem,
9824         df_reg_lifetime): New functions.
9825         * df.c: Deleted file.
9826         * ddg.c (create_ddg_dep_no_link, build_inter_loop_deps): Made code
9827         consistent with new df api.
9828         * modulo-sched.c (sms_schedule, rest_of_handle_sms,
9829         rest_of_handle_sms): Ditto.
9830         * web.c (unionfind_union, union_defs, entry_register, web_main):
9831         Ditto.
9832         * loop_invariant.c (invariant_for_use, hash_invariant_expr_1,
9833         invariant_expr_equal_p, find_defs, check_dependencies,
9834         find_invariant_insn, find_invariants_to_move, move_invariant_reg,
9835         free_inv_motion_data, move_loop_invariants): Ditto.
9836         * Makefile.in (df.c, df-scan.c df-problems.c df-core.c):
9837         Update dependencies.
9838         (odf.c): Added defective entry that was deleted later in day.
9839         * sched-deps.c (sched_analyze_1): Ditto.
9840
9841 2006-01-11  Zdenek Dvorak <dvorakz@suse.cz>
9842
9843         * tree-ssa-operands.c (get_expr_operands): Record addressable
9844         variables directly.  Do not call add_stmt_operands for CONST_DECLs
9845         and ARRAY_DECLs.
9846         (get_indirect_ref_operands): Remove handling of *(&a + offset) case.
9847         (add_stmt_operands): Handle only objects satisfying SSA_VAR_P.
9848
9849 2006-01-11  Ben Elliston  <bje@au.ibm.com>
9850
9851         * config/i386/i386.c (ix86_return_in_memory): Fix comment: this
9852         function returns true in the positive case.
9853
9854 2006-01-10  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
9855
9856         PR target/20754
9857         * config/pa/pa.md: Create separate 32 and 64-bit move patterns
9858         for SI, DI, SF and DF modes.  Add alternatives to copy between
9859         general and floating point registers to the 32-bit patterns.
9860         * config/pa/pa-64.h (SECONDARY_MEMORY_NEEDED_RTX): Delete undefine.
9861         * config/pa/pa.h (SECONDARY_MEMORY_NEEDED_RTX): Delete define.
9862         (SECONDARY_MEMORY_NEEDED): Secondary memory is only needed when
9863         generating 64-bit code.
9864         * config/pa/pa.c (output_move_double): Handle copies between general
9865         and floating registers.
9866
9867 2006-01-10  Stuart Hastings  <stuart@apple.com>
9868
9869         * config/i386/i386.md (set_got): Update.
9870         (set_got_labelled): New.  (UNSPEC_LD_MPIC): New.
9871         (builtin_setjmp_receiver): Mach-O support.
9872         * config/i386/darwin.h (TARGET_ASM_FILE_END) Define.
9873         (GOT_SYMBOL_NAME): Define.
9874         (FORCE_PREFERRED_STACK_BOUNDARY_IN_MAIN): New.
9875         (TARGET_DEEP_BRANCH_PREDICTION): Remove.
9876         * config/i386/i386.c (override_options): Revise for Darwin.
9877         (USE_HIDDEN_LINKONCE): Enable for Mach-O.  (ix86_file_end): Mach-O
9878         support.  (darwin_x86_file_end): New.  (output_set_got): Add label
9879         parameter, revise for Mach-O.  (x86_output_mi_thunk): Likewise.
9880         * config/i386/i386-protos.h (output_set_got): Likewise.
9881         * config/darwin.c (machopic_legitimize_pic_address): Update
9882         regs_ever_live[].
9883
9884 2006-01-10  Kaz Kojima  <kkojima@gcc.gnu.org>
9885
9886         * config/sh/sh.h (SH5_WOULD_BE_PARTIAL_NREGS): Use GET_MODE_SIZE
9887         when MODE isn't BLKmode.
9888
9889 2006-01-10  Eric Botcazou  <ebotcazou@libertysurf.fr>
9890
9891         PR rtl-optimization/25367
9892         * config/sparc/sparc.h (HARD_REGNO_RENAME_OK): New macro.
9893
9894 2006-01-10  Hans-Peter Nilsson  <hp@axis.com>
9895
9896         PR target/25718
9897         * config/cris/cris.md ("uminsi3"): Don't use 8- or 16-bit sizes
9898         for a negative bound.
9899
9900 2006-01-10  Richard Guenther  <rguenther@suse.de>
9901
9902         * tree-ssa-structalias.c (get_constraint_for_component_ref):
9903         Never override with anything constraint.
9904
9905 2006-01-10  Jan Beulich  <jbeulich@novell.com>
9906
9907         * config/i386/i386.c (ix86_data_alignment): Don't force alignment to
9908         256 bits when optimize_size.
9909
9910 2006-01-10  Jan Beulich  <jbeulich@novell.com>
9911
9912         * config/i386/netware.h (TARGET_SUBTARGET_DEFAULT): Include
9913         MASK_ALIGN_DOUBLE.
9914         * config/i386/nwld.h (LINK_SPEC): Add --extensions:GNU option.
9915         * config/i386/t-nwld (SHLIB_LINK): Insert spaces between expr
9916         arguments.
9917
9918 2006-01-10  Ben Elliston  <bje@au.ibm.com>
9919
9920         * config/rs6000/predicates.md (easy_fp_constant): Discount decimal
9921         float modes.
9922         * config/rs6000/rs6000.c (rs6000_scalar_mode_supported_p): New.
9923         (TARGET_SCALAR_MODE_SUPPORTED_P): Define.
9924         (USE_FP_FOR_ARG): Reject decimal float modes.
9925         (function_arg_advance): Likewise.
9926         (output_toc): Handle emitting TDmode, DDmode and SDmode constants.
9927         (rs6000_handle_altivec_attribute): Do not permit decimal floating
9928         point types in AltiVec vectors.
9929         (rs6000_function_value): Use GP_ARG_RETURN for decimal floats.
9930         (rs6000_libcall_value): Likewise.
9931
9932 2006-01-09  Bob Wilson  <bob.wilson@acm.org>
9933
9934         * config/xtensa/ieee754-df.S: New file.
9935         * config/xtensa/ieee754-sf.S: New file.
9936         * config/xtensa/t-xtensa (LIB2FUNCS_EXTRA): Remove fp-bit.c & dp-bit.c.
9937         (LIB1ASMFUNCS): Add SFmode and DFmode floating-point functions.
9938         * config/xtensa/lib1funcs.asm: Include ieee754-df.S and ieee754-sf.S.
9939
9940 2006-01-09  Kazu Hirata  <kazu@codesourcery.com>
9941
9942         * config/sh/predicates.md (binary_float_operator,
9943         binary_logical_operator, commutative_float_operator,
9944         equality_comparison_operator, greater_comparison_operator,
9945         less_comparison_operator, logical_operator,
9946         noncommutative_float_operator, shift_operator,
9947         symbol_ref_operand, unary_float_operator): Remove redundant
9948         conditionals.
9949
9950 2006-01-09  Jeff Law  <law@redhat.com>
9951
9952         * tree-ssa-dom.c (simplify_cond_and_lookup_avail_expr): Remove
9953         code to propagate the RHS of a cast into COND_EXPR_COND.  Remove
9954         now unused arguments.  Callers updated.
9955         (eliminate_redundant_computations): Remove now unused arguments,
9956         callers updated.
9957         (local_fold): Remove, no longer used.
9958         (find_equivalent_equality_comparison): Removed from tree-ssa-dom.c
9959         and moved to...
9960         * tree-ssa-forwprop.c (find_equivalent_equality_comparison): Here.
9961         (simplify_cond): New function.
9962         (forward_propagate_into_cond): Call simplify_cond.
9963
9964 2006-01-09  Alexandre Oliva  <aoliva@redhat.com>
9965
9966         * config/i386/sse.md (*vec_extractv2di_1_sse2): New.
9967         (*vec_extractv2di_1_sse): New.
9968
9969 2006-01-09  Ben Elliston  <bje@au.ibm.com>
9970
9971         * config/rs6000/rs6000.h (GO_IF_LEGITIMATE_ADDRESS): Typo fix.
9972
9973 2006-01-08  Richard Guenther  <rguenther@suse.de>
9974
9975         * tree-ssa-structalias.c (get_constraint_for): Remove
9976         anyoffset argument.
9977         (get_constraint_for_component_ref): Likewise.
9978         (do_deref): Likewise.
9979         (get_constraint_for): Likewise.
9980         (do_structure_copy): Likewise.
9981         (handle_ptr_arith): Likewise.
9982         (find_func_aliases): Likewise.  Remove unused need_anyoffset
9983         variable.
9984
9985 2006-01-08  J"orn Rennecke  <joern.rennecke@st.com>
9986             Kaz Kojima  <kkojima@gcc.gnu.org>
9987
9988         * config/sh/sh.h (CONST_OK_FOR_K16): Define.
9989         (CONST_OK_FOR_K): Add CONST_OK_FOR_K16 case.
9990         (EXTRA_CONSTRAINT_C16): Remove.
9991         (EXTRA_CONSTRAINT_Css, EXTRA_CONSTRAINT_Csu): Define.
9992         (EXTRA_CONSTRAINT_C): Remove EXTRA_CONSTRAINT_C16 case and add
9993         EXTRA_CONSTRAINT_Css and EXTRA_CONSTRAINT_Csu cases.
9994         * config/sh/sh.c (print_operand): Handle unsigned 16-bit symbolic
9995         constants of SHmedia.  Handle nested constant expressions of
9996         SHmedia correctly.
9997         (andcosts): Fix the costs for SHmedia constants.
9998         (sh_rtx_costs): Take account of outer_code for SHmedia constants.
9999         * config/sh/sh.md (*movsi_media): Use Css constraint instead of C16.
10000         (*movsi_media_nofpu, *movqi_media, *movhi_media): Likewise.
10001         (*movdi_media, *movdi_media_nofpu, movv8qi_i, movv2hi_i): Likewise.
10002         (movv4hi_i, movv2si_i): Likewise.
10003         (movsi_const): Adjust the second operand of ior so to match with
10004         the Csu constraint.
10005         (movdi_const, movdi_const_32bit): Likewise.
10006         (movdi_const_16bit+1): Don't sign-extend LOW.
10007         (movdi_const_16bit+2): Likewise.  Remove the zero_extend and truncate
10008         step.
10009         (*double_shori): Fix the split condition.  Use GEN_INT instead
10010         of get_int_mode calls.  Mask lower 16-bit of the argument of
10011         the last GEN_INT.
10012         (sym2GOTPLT): Remove.
10013         (symGOTPLT2reg): Replace gen_sym2GOTPLT with gen_rtx_CONST and
10014         gen_rtx_UNSPEC.
10015         * config/sh/predicates.md (arith_operand): Use EXTRA_CONSTRAINT_Css
10016         instead of EXTRA_CONSTRAINT_C16.
10017
10018 2006-01-07  Ian Lance Taylor  <ian@airs.com>
10019             David Edelsohn  <edelsohn@gnu.org>
10020
10021         PR rtl-optimization/25662
10022         * optabs.c (simplify_expand_binop): Use simplify_binary_operation
10023         for constant operands instead of simplify_gen_binary.
10024         * simplify-rtx.c (simplify_gen_binary): Swap commutative operands
10025         after trying simplify_binary_operation
10026
10027 2006-01-06  Daniel Berlin  <dberlin@dberlin.org>
10028
10029         * tree.c (iterative_hash_expr): Hash decls based on UID.
10030
10031 2006-01-06  Eric Christopher  <echristo@apple.com>
10032
10033         * doc/tm.texi (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): Document.
10034         (TARGET_UNWIND_EMIT): Fix spelling.
10035         * target.h (gcc_target): Add except_table_label.
10036         * except.c (output_function_exception_table): Use.
10037         * varasm.c (default_emit_except_table_label): New.
10038         * target-def.h (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): New default
10039         define.
10040         (asm_out): Add here.
10041         * output.h (default_emit_except_table_label): Prototype.
10042         * config/darwin-protos.h (darwin_emit_except_table_label): Ditto.
10043         * config/darwin.c (darwin_emit_except_table_label): Define.
10044         * config/darwin.h (TARGET_ASM_EMIT_EXCEPT_TABLE): Ditto.
10045
10046 2006-01-06  Zdenek Dvorak <dvorakz@suse.cz>
10047
10048         PR tree-optimization/18527
10049         * tree-ssa-loop-niter.c (number_of_iterations_cond,
10050         number_of_iterations_special, number_of_iterations_exit):
10051         Move base and step of an iv to a single structure.  Add
10052         no_overflow flag, and use it in # of iterations analysis.
10053         * tree-scalar-evolution.c (analyze_scalar_evolution_in_loop): Add
10054         folded_casts argument.
10055         (simple_iv): Pass base and step in a structure.  Set no_overflow
10056         flag.
10057         (scev_const_prop): Add argument to analyze_scalar_evolution_in_loop.
10058         Evaluate expensiveness of computing # of iterations instead of
10059         the final expression.
10060         * tree-scalar-evolution.h (affine_iv): New structure.
10061         (simple_iv): Declaration changed.
10062         * tree-chrec.c (chrec_apply): Handle chrecs containing symbols.
10063         * tree-ssa-loop-ivopts.c (determine_biv_step, find_givs_in_stmt_scev,
10064         find_givs_in_stmt): Changed due to simple_iv change.
10065
10066 2006-01-06  Jeff Law  <law@redhat.com>
10067
10068         PR ada/24994
10069         * tree-cfg.c (bsi_replace): Rename final argument from
10070         PRESERVE_EH_INFO to UPDATE_EH_INFO.  Fix typo in last
10071         change (stmt -> orig_stmt).
10072         * tree-eh.c (verify_eh_throw_stmt_node): New function.
10073         (bsi_remove): Add new argument.  Remove EH information
10074         if requested.
10075         (verify_eh_throw_table_statements): New function.
10076         (bsi_remove): Add new argument REMOVE_EH_INFO.  All callers
10077         updated.
10078         * tree-optimize.c (execute_free_cfg_annotations): Verify
10079         the EH throw statement table after removing annotations.
10080         * except.h (verify_eh_throw_table_statements): Prototype.
10081         * tree-flow.h (bsi_remove): Update prototype.
10082         * tree-vrp.c (remove_range_assertions): Add new argument to
10083         bsi_remove call.
10084         * tree-ssa-loop-im.c (move_computations_stmt): Likewise.
10085         * tree-complex.c (expand_complex_div_wide): Likewise.
10086         * tree-ssa-threadupdate.c (remove_ctrl_stmt_and_useless_edges): Likewise
10087         * tree-tailcall.c (eliminate_tailcall): Likewise.
10088         * tree-ssa-dse.c (dse_optimize_stmt): Likewise.
10089         * tree-ssa-loop-ivopts.c (remove_statement): Likewise.
10090         * tree-nrv.c (tree_nrv): Likewise.
10091         * tree-vectorizer.c (slpeel_make_loop_iterate_ntimes): Likewise.
10092         * tree-if-conv.c (tree_if_convert_cond_expr): Likewise.
10093         (combine_blocks): Likewise.
10094         * tree-ssa-phiopt.c (replace_phi_edge_with_variable): Likewise.
10095         * tree-cfgcleanup.c (cleanup_ctrl_expr_graph): Likewise.
10096         (cleanup_control_flow): Likewise.
10097         (remove_forwarder_block): Likewise.
10098         * tree-ssa-pre.c (remove_dead_inserted_code): Likewise.
10099         * tree-sra.c (sra_replace): Likewise.
10100         * tree-ssa-forwprop.c (forward_propagate_into_cond): Likewise.
10101         (forward_propagate_single_use_vars): Likewise.
10102         * tree-ssa-dce.c (remove_dead_stmt): Likewise.
10103         * tree-inline.c (expand_call_inline): Likewise.
10104         * tree-vect-transform.c (vect_transform_loop): Likewise.
10105         * tree-outof-ssa.c (rewrite_trees): Likewise.
10106         * tree-cfg.c (make_goto_expr_edges): Likewise.
10107         (cleanup_dead_labels): Likewise.
10108         (tree_merge_blocks, remove_bb, disband_implicit_edges): Likewise.
10109         (bsi_move_before, bsi_move_after): Likewise.
10110         (bsi_move_to_bb_end, try_redirect_by_replacing_jump): Likewise
10111         (tree_redirect_edge_and_branch, tree_split_block): Likewise.
10112
10113 2006-01-06  Andrew Pinski  <pinskia@physics.uc.edu>
10114
10115         PR tree-opt/25528
10116         * tree-ssa-alias.c (find_used_portions): Handle REALPART_EXPR
10117         and IMAGPART_EXPR.
10118         * tree-flow-inline.h (var_can_have_subvars): Handle complex types
10119         on non gimple variables.  Also add checks at the top for decls and
10120         mtags.
10121         * tree-ssa-structalias.c (push_fields_onto_fieldstack): Handle
10122         complex types.
10123         * tree-ssa-operands.c (parse_ssa_operands): Handle REALPART_EXPR
10124         and IMAGPART_EXPR for creating MUST_DEFs.
10125         (get_expr_operands): Handle SSA_NAME, STRUCT_FIELD_TAG, TYPE_MEMORY_TAG,
10126         and NAME_MEMORY_TAG separately from the DECLs.
10127
10128 2006-01-06  Richard Guenther  <rguenther@suse.de>
10129
10130         * tree-dfa.c (mark_new_vars_to_rename): Create stmt
10131         annotation, if necessary.
10132         * tree-ssa-pre.c (create_expression_by_pieces): Remove
10133         redundant calls to update_stmt.
10134         * tree-ssa-forwprop.c (tidy_after_forward_propagate_addr):
10135         Likewise.
10136
10137 2006-01-05  Richard Henderson  <rth@redhat.com>
10138
10139         * c-parser.c (c_parser_objc_methodprotolist): Handle CPP_PRAGMA.
10140
10141 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
10142
10143         * c-typeck.c: Update copyright date.
10144
10145 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
10146
10147         * c-typeck.c (build_c_cast): Always warn when casting
10148         from a pointer to an integer of different size, even if
10149         the node was constant.
10150
10151 2006-01-05  Richard Guenther  <rguenther@suse.de>
10152
10153         PR tree-optimization/22555
10154         * tree-ssa-alias.c (create_overlap_variables_for): Do not give up,
10155         if one structure field is an array.
10156         * tree-ssa-operands.c (get_expr_operands): Continue scanning
10157         operands even if we found a subvar, but ignore VOPs in this
10158         case.
10159         * tree-ssa-loop-ivopts.c (rewrite_use): Mark new vars in stmt
10160         for renaming.
10161         * tree-ssa-loop.c (pass_iv_optimize): Schedule TODO_update_ssa.
10162
10163 2006-01-05  Richard Earnshaw  <rearnsha@arm.com>
10164
10165         PR middle-end/24998
10166         * arm/t-netbsd (LIB2FUNCS_EXTRA): Define.
10167
10168 2006-01-05  Richard Guenther  <rguenther@suse.de>
10169             Diego Novillo  <dnovillo@redhat.com>
10170
10171         * tree-pass.h (TODO_remove_unused_locals): Define.
10172         * gimple-low.c (expand_var_p, remove_useless_vars,
10173         pass_remove_useless_vars): Remove.  Update all users.
10174         * tree-ssa-live.c (mark_all_vars_used_1): Handle SSA names.
10175         (remove_unused_locals): New function.
10176         * tree-flow.h (remove_unused_locals): Declare.
10177         * passes.c (execute_todo): Call remove_unused_locals if
10178         TODO_remove_unused_locals is set.
10179         * tree-into-ssa.c (pass_build_ssa): Add TODO_remove_unused_locals.
10180         * tree-ssa-dce.c (pass_dce): Likewise.
10181         * tree-outof-ssa.c (pass_del_ssa): Likewise.
10182
10183 2006-01-05  Richard Guenther  <rguenther@suse.de>
10184
10185         * tree-flow.h (struct fieldoff): Decompose field to
10186         type, size and decl.
10187         * tree-ssa-alias.c (create_sft): Take type as parameter.
10188         (create_overlap_variables_for): Store type, size and decl
10189         in the fieldoff structure.
10190         * tree-ssa-structalias.c (fieldoff_compare): Adjust users
10191         of struct fieldoff.
10192         (push_fields_onto_fieldstack): Likewise.
10193         (create_variable_info_for): Likewise.  Use offset for the
10194         SFT name if the decl is not available.
10195
10196 2006-01-04  Paul Brook  <paul@codesourcery.com>
10197
10198         * config/m68k/m68k.c (m68k_output_mi_thunk): Use jmp, not jsr.
10199
10200 2006-01-04  Daniel Berlin  <dberlin@dberlin.org>
10201
10202         * lambda-code.c (can_put_in_inner_loop): Relax
10203         restrictions.
10204         (can_put_after_inner_loop): New function.
10205         (can_convert_to_perfect_nest): Use can_put_after_inner_loop as well.
10206         (perfect_nestify): Change to make copies and modify uses.
10207
10208 2006-01-04  Richard Henderson  <rth@redhat.com>
10209
10210         Merge from gomp branch:
10211         * c-lex.c (c_lex_with_flags) <CPP_PRAGMA>: Smuggle pragma id
10212         via integer constant.
10213         (pragma_lex): Remove.
10214         * c-pch.c (c_common_pch_pragma): Accept the name as an argument,
10215         rather than parsing it.
10216         * c-pragma.c (handle_pragma_weak, handle_pragma_redefine_extname,
10217         handle_pragma_extern_prefix): Add %< %> quotes.
10218         (registered_pragmas): New.
10219         (c_register_pragma_1): New.
10220         (c_register_pragma): Use it.
10221         (c_register_pragma_with_expansion): Likewise.
10222         (c_invoke_pragma_handler): New.
10223         (init_pragma): Use cpp_register_deferred_pragma directly for
10224         pch_preprocess.
10225         * c-pragma.h (enum pragma_kind): New.
10226         (pragma_handler): New.
10227         (c_invoke_pragma_handler): Declare.
10228         * c-common.c (c_parse_error): Pretty print CPP_PRAGMA and
10229         CPP_PRAGMA_EOL.
10230         * c-common.h (c_common_pch_pragma): Update decl.
10231         * Makefile.in (c-parser.o): Update dependencies.
10232         (GTFILES): Add c-pragma.h.
10233         * c-parser.c (struct c_token): Add pragma_kind.
10234         (struct c_parser): Add in_pragma.
10235         (c_lex_one_token): Always initialize keyword and pragma_kind.
10236         Extract data for CPP_PRAGMA.
10237         (c_parser_peek_2nd_token): Deny CPP_PRAGMA_EOL.
10238         (c_parser_consume_token): Don't allow CPP_PRAGMA unless errors.
10239         Don't allow CPP_PRAGMA_EOL if in_pragma.
10240         (c_parser_consume_pragma): New.
10241         (c_parser_skip_until_found): Stop on CPP_PRAGMA_EOL.
10242         (c_parser_skip_to_end_of_parameter): Likewise.
10243         (c_parser_skip_to_end_of_block_or_statement): Likewise.
10244         (c_parser_skip_to_pragma_eol): New.
10245         (c_parser_external_declaration): Handle CPP_PRAGMA.
10246         (c_parser_compound_statement_nostart): Likewise.
10247         (c_parser_statement_after_labels): Likewise.
10248         (c_parser_pragma): New.
10249         (pragma_lex): Likewise.
10250         (c_parser_pragma_pch_preprocess): New.
10251         (c_parser_new): Merge into ...
10252         (c_parse_file): ... here.  Call c_parser_pragma_pch_preprocess.
10253
10254 2006-01-04  Jeff Law  <law@redhat.com>
10255
10256         PR ada/24994
10257         * tree-cfg.c (bsi_replace): Remove the original statement
10258         from the EH throw statement table.
10259
10260 2006-01-04  Jakub Jelinek  <jakub@redhat.com>
10261
10262         * config/i386/pmm_malloc.h (posix_memalign): If __cplusplus,
10263         make the prototype extern "C" and add throw ().
10264
10265         PR target/25554
10266         * config/i386/i386.md (testqi_ext_3): Ensure len is positive
10267         and pos non-negative and pos + len <= 32.
10268         (testqi_ext_3_rex64): Ensure len is positive and pos non-negative,
10269         drop pos + len < HOST_BITS_PER_WIDE_INT test.
10270         (testqi_ext_3* splitter): Handle pos + len == HOST_BITS_PER_WIDE_INT.
10271
10272         PR c/25559
10273         * c-common.c (handle_vector_size_attribute): Reject zero vector size
10274         as well as sizes not multiple of component size.
10275
10276         PR debug/25562
10277         * function.c (instantiate_expr): New function.
10278         (instantiate_decls_1, instantiate_decls): If DECL_HAS_VALUE_EXPR_P,
10279         walk its DECL_VALUE_EXPR with instantiate_expr.
10280
10281         * dwarf2out.c (loc_descriptor_from_tree_1): Don't add
10282         DW_OP_deref{,_size} if address isn't going to be added.
10283
10284 2006-01-04  Ben Elliston  <bje@au.ibm.com>
10285
10286         * config/fp-bit.h: Use top-of-file comment from libgcc2.c.
10287         * config/fp-bit.c: Likewise.
10288
10289 2006-01-03  Daniel Berlin  <dberlin@dberlin.org>
10290
10291         * dominance.c: Add comment about why we use DFS numbering
10292         of dominance tree.
10293
10294 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
10295             Richard Henderson  <rth@redhat.com>
10296
10297         Merge from gomp-branch:
10298         * varasm.c (assemble_variable): Handle thread-local COMMON data.
10299         * defaults.h (ASM_OUTPUT_TLS_COMMON): Define.
10300
10301 2006-01-03  Paolo Bonzini  <bonzini@gnu.org>
10302
10303         PR rtl-optimization/25578
10304         * combine.c (combine_simplify_rtx, force_to_mode): Don't
10305         pass a parameter to simplify_shift_const if changing ASHIFTRT
10306         to LSHIFTRT.
10307
10308 2006-01-03  Adrian Straetling  <straetling@de.ibm.com>
10309
10310         * builtins.c (get_builtin_sync_mem): New function.
10311         (expand_builtin_sync_operation, expand_builtin_compare_and_swap,
10312         expand_builtin_lock_test_and_set, expand_builtin_lock_release):
10313         Call get_builtin_sync_mem to generate mem rtx.
10314
10315 2006-01-03  Richard Guenther  <rguenther@suse.de>
10316
10317         PR c/25183
10318         * stmt.c (add_case_node): Make sure to clear overflow flags
10319         from ranges.
10320
10321 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
10322
10323         Merge from gomp-branch.
10324         * config/sparc/sync.md: New file.
10325         * config/sparc/sparc.md (UNSPECV_MEMBAR, UNSPECV_CAS, UNSPECV_SWAP,
10326         UNSPECV_LDSTUB): New constants.
10327         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): New function.
10328         * config/sparc/predicates.md (memory_reg_operand): New predicate.
10329         * config/sparc/sparc-protos.h (sparc_expand_compare_and_swap_12): New
10330         prototype.
10331
10332 2006-01-03  Roger Sayle  <roger@eyesopen.com>
10333
10334         * combine.c (reg_subword_p): New predicate to test whether the
10335         destination of a set refers to a subword/piece of a register.
10336         (try_combine): Generalize the code to merge the setting of a
10337         pseudo to a constant followed by a set of a subword of that
10338         register to a constant.
10339
10340 2006-01-03  Kazu Hirata  <kazu@codesourcery.com>
10341
10342         * basic-block.h (control_flow_graph): Change the type of
10343         x_label_to_block_map to VEC(basic_block,gc) *.
10344         * tree-cfg.c (init_empty_tree_cfg, label_to_block_fn,
10345         set_bb_for_stmt): Adjust the uses of x_label_to_block_map.
10346
10347         * tree-ssa-propagate.c (cfg_blocks): Change the type to
10348         VEC(basic_block,heap) *.
10349         (cfg_blocks_add, cfg_blocks_get, ssa_prop_init,
10350         ssa_prop_fini): Adjust the uses of cfg_blocks.
10351
10352 2006-01-03  Steven Bosscher  <stevenb.gcc@gmail.com>
10353
10354         * fold-const.c (operand_equal_p): Accept a NULL operand 0 for
10355         COMPONENT_REFs.
10356         * emit-rtl.c (mem_attrs_htab_eq): Use iterative_hash_expr for
10357         hashing trees instead of a pointer hash.
10358         (mem_attrs_htab_eq): Do a deep compare instead of a pointer
10359         compare for MEM_EXPR.
10360
10361         PR rtl-optimization/25130
10362         * cse.c (exp_equiv_p): Compare MEM_ATTRS instead of MEM_ALIAS_SET
10363         when comparing MEMs for GCSE
10364
10365 2006-01-03  Ben Elliston  <bje@au.ibm.com>
10366
10367         * targhooks.h (default_decimal_float_supported_p): Declare.
10368         * targhooks.c (default_decimal_float_supported_p): Define.
10369         * target-def.h (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Redefine to
10370         `default_decimal_float_supported_p'.
10371         * doc/tm.texi (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Update.
10372
10373 2006-01-02  Adam Nemet  <anemet@caviumnetworks.com>
10374
10375         * combine.c (apply_distributive_law <SUBREG>): Check
10376         TRULY_NOOP_TRUNCATION.
10377
10378 2006-01-02  Geoffrey Keating  <geoffk@apple.com>
10379
10380         * dwarf2out.c (have_switched_text_section): Delete.
10381         (have_multiple_function_sections): New.
10382         (have_location_lists): Make 'bool'.
10383         (add_AT_loc_list): Use 'true' not '1'.
10384         (dwarf2out_switch_text_section): Set have_multiple_function_sections.
10385         (output_loc_list): Use have_multiple_function_sections.
10386         (output_ranges): Likewise.
10387         (dwarf2out_begin_function): Set have_multiple_function_sections if
10388         necessary.
10389         (dwarf2out_source_line): Don't fake separate_line_info_table_in_use.
10390         Check function_section rather than DECL_SECTION_NAME.
10391         (dwarf2out_finish): Use have_multiple_function_sections.
10392         Don't clear have_location_lists.
10393
10394 2006-01-02  Eric Botcazou  <ebotcazou@adacore.com>
10395             Jan Hubicka  <jh@suse.cz>
10396
10397         * cfglayout.c (fixup_reorder_chain): Remove kludge for the
10398         case of conditional jump jumping to the next instruction.
10399         * cfgrtl.c (force_nonfallthru_and_redirect): Accept all
10400         cases of conditional jump jumping to the next instruction.
10401
10402 2006-01-02  Jan Hubicka  <jh@suse.cz>
10403
10404         * i386.c (*_cost): Add COSTS_N_INSNS.
10405         (ix86_rtx_costs): Do not use COSTS_N_INSNS.
10406
10407 2006-01-02  Paolo Bonzini  <bonzini@gnu.org>
10408
10409         PR target/25259
10410         * Makefile.in (DECNUMINC): Include libdecnumber's build directory.
10411
10412 2006-01-02  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
10413
10414         * config/arm/arm.c (all_fpus): Fix comment typo.
10415         * config/darwin.c: Likewise.
10416         * config/frv/frv.h (FRV_STRUCT_VALUE_REGNUM): Likewise.
10417         * config/h8300/h8300.md (extendqisi2_h8300hs): Likewise.
10418         * config/m68hc11/m68hc11.c (m68hc11_reload_operands): Likewise.
10419
10420 2006-01-01  David Edelsohn  <edelsohn@gnu.org>
10421
10422         * config/rs6000/rs6000.c (rs6000_expand_compare_and_swapqhi): New.
10423         (rs6000_split_compare_and_swapqhi): New.
10424         * config/rs6000/sync.md (sync_compare_and_swap{hi,qi}): New.
10425         (sync_compare_and_swapqhi_internal): New.
10426         * config/rs6000/rs6000-protos.h: Declare.