gcc/ChangeLog

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