gcc/ChangeLog

   1 2006-05-29  Roger Sayle  <roger@eyesopen.com>
   2
   3         PR tree-optimization/24964
   4         * simplify-rtx.c (simplify_binary_operation_1): Add function comment.
   5         <MULT>: Minor clean-up.  Don't convert x*-1.0 into -x if we honor
   6         signaling NaNs.  Optimize -x*-x as x*x for all float modes, and
   7         abs(x)*abs(x) as x*x for scalar floating point modes.
   8
   9 2006-05-29  Sebastian Pop  <pop@cri.ensmp.fr>
  10
  11         PR middle-end/27745
  12         * lambda-code.c (perfect_nestify): Don't copy statements
  13         in the inner loop: move them to the inner loop header.
  14
  15 2006-05-29  Diego Novillo  <dnovillo@redhat.com>
  16
  17         PR 26237
  18         * c-tree.texi: Document OpenMP directives and clauses.
  19
  20 2006-05-29  Kazu Hirata  <kazu@codesourcery.com>
  21
  22         * varasm.c (globalize_decl): Fix indentation.
  23
  24 2006-05-29  Diego Novillo  <dnovillo@redhat.com>
  25
  26         PR 26242
  27         * doc/passes.texi: Add documentation for pass_vrp, pass_ipa_pta,
  28         pass_fre, pass_store_ccp, pass_copy_prop,
  29         pass_store_copy_prop, pass_merge_phi, pass_nrv,
  30         pass_return_slot, pass_object_size, pass_lim,
  31         pass_linear_transform, pass_empty_loop, pass_complete_unroll,
  32         pass_loop_prefetch and pass_stdarg.
  33
  34 2005-05-29  Bernd Schmidt  <bernd.schmidt@analog.com>
  35
  36         * config/bfin/bfin.opt (mfdpic): New option.
  37         * config/bfin/t-bfin-elf (EXTRA_PARTS): Add crtbeginS.o and crtendS.o.
  38         (EXTRA_MULTILIB_PARTS): Likewise.
  39         (CRTSTUFF_T_CFLAGS, TARGET_LIBGCC2_CFLAGS): Use -fpic.
  40         (MULTILIB_OPTIONS, MULTILIB_EXCEPTIONS): Build one extra -mfdpic
  41         multilib.
  42         * config/bfin/elf.h (STARTFILE_SPEC): Don't link in crt0.o if -shared.
  43         (CRT_CALL_STATIC_FUNCTION): New.
  44         * config/bfin/uclinux.h (STARTFILE_SPEC): Don't link in crt0.o if
  45         -shared.
  46         (CRT_CALL_STATIC_FUNCTION): New.
  47         * config/bfin/bfin.c (legitimize_pic_address): Now static.  Handle
  48         FD-PIC moves.
  49         (n_pregs_to_save): PIC register doesn't need to be saved with FD-PIC.
  50         (print_operand): Handle UNSPEC_MOVE_FDPIC and UNSPEC_FUNCDESC_GOT17M4.
  51         (initialize_trampoline): Changed to handle FD-PIC code generation.
  52         (expand_move): If TARGET_FDPIC, use emit_pic_move as needed.
  53         (bfin_expand_call): Generate FD-PIC calls if TARGET_FDPIC.
  54         (override_options): Disallow -mid-shared-library -mfdpic combination.
  55         Can't do unaligned ops if FD-PIC.
  56         Turn off flag_pic if trying to generate non-id-shared-library
  57         non-fdpic code, since it's not supported.
  58         (bfin_assemble_integer): New function.
  59         (TARGET_ASM_INTEGER): Define.
  60         * config/bfin/crti.s (__init, __fini): Save P3 on the stack if
  61         __BFIN_FDPIC__.
  62         * config/bfin/crtn.s: Restore them.
  63         * config/bfin/bfin.h (TARGET_CPU_CPP_BUILTINS): Define __BFIN_FDPIC__
  64         if TARGET_FDPIC.
  65         (DRIVER_SELF_SPECS, SUBTARGET_DRIVER_SELF_SPECS,
  66         LINK_GCC_C_SEQUENCE_SPEC, ASM_SPEC, LINK_SPEC): New macros.
  67         (FDPIC_FPTR_REGNO, FDPIC_REGNO, OUR_FDPIC_REG): New macros.
  68         (TRAMPOLINE_SIZE, TRAMPOLINE_TEMPLATE): Adjust for FD-PIC.
  69         (CONDITIONAL_REGISTER_USAGE): If TARGET_FDPIC, FDPIC_REGNO is
  70         call-used.
  71         (enum reg_class, REG_CLASS_CONTENTS, REG_CLASS_NAMES): Add
  72         FDPIC_REGS and FDPIC_FPTR_REGS.
  73         (REG_CLASS_FROM_LETTER): Use 'Z' and 'Y' for them.
  74         * config/bfin/bfin.md (UNSPEC_MOVE_FDPIC, UNSPEC_FUNCDESC_GOT17M4,
  75         UNSPEC_VOLATILE_LOAD_FUNCDESC): New constants.
  76         (load_funcdescsi): New pattern.
  77         (call_symbol_fdpic, sibcall_symbol_fdpic, call_value_symbol_fdpic,
  78         sibcall_value_symbol_fdpic, call_insn_fdpic, sibcall_insn_fdpic,
  79         call_value_insn_fdpic, sibcall_value_insn_fdpic): New patterns.
  80
  81 2006-05-29  Kazu Hirata  <kazu@codesourcery.com>
  82
  83         * gcse.c, rtlanal.c: Remove obsolete comments associated with
  84         loop.c.
  85
  86         * config/bfin/bfin.h (PARM_BOUNDRY, STACK_BOUNDRY): Remove.
  87
  88         * tree-flow.h: Remove the prototype for add_type_alias.
  89         * tree-ssa-alias.c (add_type_alias): Remove.
  90
  91 2006-05-28  Kazu Hirata  <kazu@codesourcery.com>
  92
  93         * cfgcleanup.c, cfgexpand.c, cgraphunit.c, config/arm/arm.c,
  94         config/fr30/fr30.md, config/i386/i386-interix.h,
  95         config/i386/i386.c, config/i386/i386.md, config/sh/superh.h,
  96         config/sh/superh64.h, config/v850/v850.c, df-core.c,
  97         df-problems.c, df.h, except.c, final.c, haifa-sched.c,
  98         lambda-code.c, libgcc2.h, omp-low.c, optabs.c, predict.c,
  99         reload.c, tree-flow.h, tree-outof-ssa.c, tree-ssa-dce.c,
 100         tree-ssa-pre.c, tree-vect-transform.c: Fix comment typos.
 101         Follow spelling conventions.
 102         * doc/invoke.texi, doc/rtl.texi, doc/tm.texi: Fix typos.
 103         Follow spelling conventions.
 104
 105 2006-05-27  Richard Guenther  <rguenther@suse.de>
 106
 107         PR middle-end/27773
 108         * fold-const.c (fold_plusminus_mult_expr): Use fold_convert
 109         to produce a constant of value 1 of generic type.
 110
 111 2006-05-27  Dirk Mueller  <dmueller@suse.de>
 112
 113         * cgraphunit.c (decide_is_function_needed): Fix wrong
 114         PR reference.
 115
 116 2006-05-26  Ulrich Weigand  <uweigand@de.ibm.com>
 117
 118         PR rtl-optimization/27661
 119         * reload.c (find_reloads): When reloading a VOIDmode constant
 120         as address due to an EXTRA_MEMORY_CONSTRAINT or 'o' constraint,
 121         use Pmode as mode of the reload register.
 122
 123 2006-05-26  Eric Botcazou  <ebotcazou@adacore.com>
 124
 125         * doc/invoke.texi (Optimize Options): Document that -funit-at-a-time
 126         is enabled at -O and above.
 127
 128 2006-05-26  Steven Bosscher  <steven@gcc.gnu.org>
 129
 130         PR target/27571
 131         * config/alpha/alpha.c (alpha_does_function_need_gp): Skip jump
 132         table data.
 133
 134 2006-05-25  Mark Mitchell  <mark@codesourcery.com>
 135
 136         PR c++/20103
 137         * gimplify.c (gimplify_decl_expr): Do not call gimple_add_tmp_var
 138         for anonymous variables explicitly declared by front ends.
 139
 140 2006-05-25  Eric Botcazou  <ebotcazou@adacore.com>
 141
 142         * tree-ssa-structalias.h (PTR_IS_REF_ALL): New macro.
 143         (struct alias_info): Add new field ref_all_symbol_mem_tag.
 144         * tree-ssa-alias.c (compute_may_aliases): If the program contains
 145         ref-all pointers, run a finalization pass for them.
 146         (compute_flow_insensitive_aliasing): Skip ref-all pointers.
 147         (finalize_ref_all_pointers): New function.
 148         (is_escape_site): Return ESCAPE_BAD_CAST for conversion from a
 149         regular pointer type to a ref-all pointer type.
 150         (get_tmt_for): Return the special memory tag for ref-all pointers.
 151
 152 2006-05-25  Richard Guenther  <rguenther@suse.de>
 153
 154         PR middle-end/27743
 155         * fold-const.c (fold_binary): Do not look at the stripped
 156         op0 for (a OP c1) OP c2 to a OP (c1+c2) shift optimization.
 157
 158 2006-05-25  Eric Botcazou  <ebotcazou@adacore.com>
 159
 160         * tree-vrp.c (extract_range_from_assert): Set the range to VARYING
 161         for LT and GT if the computed range is effectively empty.
 162
 163 2006-05-24  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
 164
 165         PR target/27627
 166         * pa/pa-modes.def: Use mips_single_format, mips_double_format and
 167         mips_quad_format formats instead of ieee_single_format,
 168         ieee_double_format and ieee_quad_format formats, respectively.
 169
 170 2006-05-24  Zdenek Dvorak <dvorakz@suse.cz>
 171
 172         PR tree-optimization/27639
 173         PR tree-optimization/26719
 174         * tree-vrp.c (adjust_range_with_scev): Use scev_direction and adjust
 175         call to scev_probably_wraps_p.
 176         * tree-ssa-loop-niter.c (compare_trees, convert_step_widening,
 177         used_in_pointer_arithmetic_p, convert_step): Removed.
 178         (nowrap_type_p): New function.
 179         (scev_probably_wraps_p): Rewritten.
 180         * tree-scalar-evolution.c (instantiate_parameters_1): Do not call
 181         chrec_convert if chrec_convert_aggressive might have been used.
 182         * tree-chrec.c (convert_affine_scev, chrec_convert_1,
 183         scev_direction): New functions.
 184         (chrec_convert): Changed to a wrapper over chrec_convert_1.
 185         * tree-ssa-loop-ivopts.c (idx_find_step): Use convert_affine_scev
 186         instead of convert_step.
 187         * tree-flow.h (scev_probably_wraps_p): Declaration changed.
 188         (convert_step): Declaration removed.
 189         (convert_affine_scev, nowrap_type_p, scev_direction): Declare.
 190
 191 2006-05-23  Kenneth Zadeck <zadeck@naturalbridge.com>
 192
 193         * df-core.c: Added to header comments.
 194         * df.h (df_ru_bb_info, df_rd_bb_info, df_lr_bb_info,
 195         df_ur_bb_info, df_urec_bb_info): Added comments.
 196         * df-problems (df_ref_bitmap, ru, rd, lr, ur,
 197         urec, ri problems): Fixed header comments.
 198         (df_ru_transfer_function): Fixed in-out set dyslexia when copying
 199         code from df_rd_transfer_function.
 200
 201 2006-05-23  Richard Sandiford  <richard@codesourcery.com>
 202
 203         * libgcc2.c (LIBGCC2_MAX_UNITS_PER_WORD): New macro.
 204         (LIBGCC2_UNITS_PER_WORD): Use LIBGCC2_MAX_UNITS_PER_WORD rather than
 205         MIN_UNITS_PER_WORD to set the default.  Also use it in the guard.
 206
 207 2006-05-23  Joseph Myers  <joseph@codesourcery.com>
 208
 209         * expr.c (undefined_operand_subword_p): New.
 210         (emit_move_multi_word): Do not generate move from undefined bits
 211         of a paradoxical subreg.
 212
 213 2006-05-23  Richard Sandiford  <richard@codesourcery.com>
 214
 215         PR rtl-optimization/27736
 216         * combine.c (replaced_rhs_value): New variable.
 217         (combine_instructions): Set it.
 218         (distribute_notes): When distributing a note in replaced_rhs_insn,
 219         check whether the value was used in replaced_rhs_value.
 220
 221 2006-05-23  Andrew MacLeod  <amacleod@redhat.com>
 222
 223         PR c++/26757
 224         * tree-ssa-loop-im.c (determine_invariantness_stmt): Use
 225         add_referenced_var instead of add_referenced_tmp_var.
 226         * tree-complex.c (create_one_component_var): Use add_referenced_var.
 227         * tree-ssa-loop-manip.c (create_iv, tree_unroll_loop): Use
 228         add_referenced_var.
 229         * tree-tailcall.c (adjust_accumulator_values, adjust_return_value,
 230         tree_optimize_tail_calls_1): Use add_referenced_var.
 231         * tree-ssa-loop-ivopts.c (create_new_iv): Use add_referenced_var.
 232         * tree-ssa-alias.c (create_memory_tag, create_global_var, create_sft):
 233         Use add_referenced_var.
 234         * tree-if-conv.c (ifc_temp_var): Use add_referenced_var.
 235         * gimplify.c (force_gimple_operand): Use add_referenced_var.
 236         * tree-ssa-phiopt.c (conditional_replacement, abs_replacement):
 237         Use add_referenced_var.
 238         * tree-dfa.c (struct walk_state): Remove.
 239         (find_referenced_vars): Remove walk state and vars_found hash table.
 240         (make_rename_temp): Use add_referenced_var.
 241         (find_vars_r): Pass less parameters to add_referenced_var.
 242         (referenced_var_p): New.  Is var in referenced_var hash table.
 243         (referenced_var_insert): Assert var isn't already in hash table.
 244         (add_referenced_var): Don't need walk_state parameter.  Add var if it
 245         isn't already in the hash table.
 246         (add_referenced_tmp_var): Remove.
 247         (find_new_referenced_vars_1): Use add_referenced_var.
 248         * tree-ssa-pre.c (create_expression_by_pieces,
 249         insert_into_preds_of_block, insert_extra_phis, realify_fake_stores):
 250         Use add_referenced_var.
 251         * tree-vect-patterns.c (vect_pattern_recog_1): Use add_referenced_var.
 252         * lambda-code.c (lbv_to_gcc_expression, lle_to_gcc_expression,
 253         lambda_loopnest_to_gcc_loopnest, perfect_nestify): Use
 254         add_referenced_var.
 255         * tree-vect-transform.c (vect_create_addr_base_for_vector_ref,
 256         vect_create_data_ref_ptr, vect_create_destination_var,
 257         vect_init_vector, vect_build_loop_niters,
 258         vect_generate_tmps_on_preheader, vect_update_ivs_after_vectorizer,
 259         vect_gen_niters_for_prolog_loop, vect_create_cond_for_align_checks):
 260         Use add_referenced_var.
 261         * tree-outof-ssa.c (create_temp): Use add_referenced_var.
 262         * tree-flow.h (add_referenced_tmp_var): Remove prototype
 263         (add_referenced_var): Add prototype.
 264         * tree-ssa-structalias.c (get_constraint_for,
 265         intra_create_variable_infos): Use add_referenced_var.
 266
 267 2006-05-23  Alexandre Oliva  <aoliva@redhat.com>
 268
 269         * simplify-rtx.c (simplify_subreg): Adjust REG_OFFSET for
 270         big-endian paradoxical subregs.
 271         * var-tracking.c (struct micro_operation_def): Document that,
 272         for modify micro operations, insn is the subsequent instruction.
 273         (var_reg_delete_and_set, var_mem_delete_and_set): Split into...
 274         (var_reg_set, var_mem_set): ... new functions.
 275         (add_stores): Record subsequent insn.
 276         (compute_bb_dataflow): Use new functions for MO_USE.
 277         (emit_notes_in_bb): Use new functions for MO_USE.  Emit use
 278         notes after the insn, and modify notes before the insn known
 279         to be the subsequent one.
 280         (vt_initialize): Invert sorting of MO_CLOBBERs and MO_SETs.
 281
 282 2006-05-23  Kazu Hirata  <kazu@codesourcery.com>
 283
 284         PR target/27696
 285         * config/i386/i386.c (ix86_expand_builtin): Use
 286         gen_sse3_monitor64 for TARGET_64BIT.
 287
 288 2006-05-22  Kenneth Zadeck <zadeck@naturalbridge.com>
 289
 290         PR rtl-optimization/26375
 291         PR rtl-optimization/26855
 292         * df-problems (df_ru_bb_local_compute_process_def): Removed update
 293         to gen set.
 294         (df_ru_bb_local_compute): Reversed statements and removed bogus
 295         comment explaining why they should be in wrong order.
 296         (df_ru_dump, df_rd_dump): Enhanced debug info.
 297         * modulo-sched.c (sms_schedule, tree_opt_pass pass_sms): Enhanced
 298         debug info.
 299         * ddg.c (add_deps_for_def): Converted use of reaching defs to
 300         reaching uses and fixed space problem.
 301
 302 2006-05-23  Jan Hubicka  <jh@suse.cz>
 303
 304         * cgraphunit.c (decide_is_function_needed): Also nested functions
 305         and functions declared inline can be optimized out at -O0.
 306
 307 2006-05-22  Gerald Pfeifer  <gerald@pfeifer.com>
 308
 309         * doc/install.texi (Configuration): Remove reference to CrossGCC
 310         FAQ which was hijacked.
 311         (Building): Ditto.
 312
 313 2006-05-22  Kazu Hirata  <kazu@codesourcery.com>
 314
 315         PR target/27266
 316         * config/i386/i386.c (ix86_expand_branch): Jump to simple if
 317         ix86_compare_emitted is non-NULL.
 318
 319 2006-05-22  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
 320
 321         PR c++/27451
 322         * stmt.c (expand_asm_operands): Skip asm statement with erroneous
 323         clobbers.
 324
 325 2006-05-22  Richard Sandiford  <richard@codesourcery.com>
 326
 327         PR rtl-optimization/25514
 328         * combine.c (replaced_rhs_insn): New variable.
 329         (combine_instructions): Set replaced_rhs_insn when trying to replace
 330         a SET_SRC with a REG_EQUAL note.
 331         (distribute_notes): Use replaced_rhs_insn when determining the live
 332         range of a REG_DEAD register.
 333
 334 2006-18-05  Joerg Wunsch <j.gnu@uriah.heep.sax.de>
 335             Anatoly Sokolov <aesok@post.ru>
 336
 337         * config/avr/avr.c (avr_mcu_types): Add support for attiny261,
 338         attiny461, attiny861, attiny25, attiny45, attiny85, attiny24,
 339         attiny44, attiny84, at90pwm2, at90pwm3, atmega165p, atmega169p,
 340         atmega164p, atmega324p, atmega644p, atmega644, atmega329,
 341         atmega3290, atmega649, atmega6490, atmega406, atmega640,
 342         atmega1280, atmega1281, at90can32, at90can64, at90usb646,
 343         at90usb647, at90usb1286 and at90usb1287 devices.
 344         * config/avr/avr.h (LINK_SPEC, CRT_BINUTILS_SPECS): (Ditto.).
 345         * config/avr/t-avr (MULTILIB_MATCHES): (Ditto.).
 346
 347 2006-05-22  Richard Sandiford  <richard@codesourcery.com>
 348
 349         * mklibgcc.in (lib2funcs): Remove _floatdidf from initial assignment.
 350
 351 2006-05-22  Richard Guenther  <rguenther@suse.de>
 352
 353         Revert
 354         2006-01-31  Richard Guenther  <rguenther@suse.de>
 355         Paolo Bonzini  <bonzini@gnu.org>
 356
 357         * doc/install.texi (--disable-libgcc-math): Document.
 358
 359 2006-05-22  Richard Guenther  <rguenther@suse.de>
 360
 361         Revert
 362         2006-01-31  Richard Guenther  <rguenther@suse.de>
 363
 364         * doc/invoke.texi (-msselibm): Document.
 365         * target.h (expand_library_builtin): New target hook.
 366         * builtins.c (expand_builtin): Use expand_library_builtin.
 367         (default_expand_library_builtin): New function.
 368         * gcc.c (LINK_GCC_MATH_SPEC): Define.
 369         (LINK_COMMAND_SPEC): Handle %(link_gcc_math).
 370         (link_gcc_math_spec): Declare.
 371         (static_specs): Add link_gcc_math_spec.
 372         * expr.h (default_expand_library_builtin): Declare.
 373         * target-def.h (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
 374         (TARGET_INITIALIZER): Add TARGET_EXPAND_LIBRARY_BUILTIN.
 375         * config/i386/i386.h: Provide LINK_GCC_MATH_SPEC.
 376         * config/i386/i386.opt (msselibm): New target option.
 377         * config/i386/i386.c (ix86_builtin_function_variants): New array.
 378         (ix86_init_sse_abi_builtins): New function.
 379         (ix86_expand_library_builtin): Likewise.
 380         (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
 381         (override_options): Handle error conditions wrt -msselibm.
 382         (ix86_builtins): Add function codes for SSE2 ABI builtins.
 383         (ix86_init_builtins): Call ix86_init_sse_abi_builtins.
 384         * doc/extend.texi (__builtin_sse2_*): Document new target specific
 385         builtins.
 386
 387 2006-05-22  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
 388
 389         PR c/27420
 390         * c-common.c (self_promoting_args_p): Skip erroneous args.
 391
 392         PR c/26818
 393         * c-decl.c (finish_struct): Skip erroneous fields.
 394
 395 2006-05-22  Nick Clifton  <nickc@redhat.com>
 396
 397         * config/cris/cris.opt (march): Remove VarExists attribute.
 398         (max-stackframe=): Likewise.
 399
 400 2006-05-22  Kazu Hirata  <kazu@codesourcery.com>
 401
 402         * doc/rtl.texi: Fix a typo.
 403         * see.c: Fix comment typos.
 404
 405         * tree-ssa-structalias.h (alias_info): Remove num_references.
 406
 407 2006-05-21  Mike Stump  <mrs@apple.com>
 408
 409         * config/darwin-c.c (BAD): Conditionalize on OPT_Wpragmas.
 410         (BAD2): Add.
 411         (darwin_pragma_options): Use BAD instead.
 412         (darwin_pragma_unused): Likewise.
 413         (darwin_pragma_ms_struct): Likewise.
 414
 415 2006-05-21  David Edelsohn  <edelsohn@gnu.org>
 416
 417         * config/rs6000/rs6000.md (floatsitf2): Remove constraints.
 418
 419 2006-05-21  Kazu Hirata  <kazu@codesourcery.com>
 420
 421         PR rtl-optimization/27671
 422         * simplify-rtx.c (simplify_relational_operation_1): Fix
 423         simplifications of (eq/ne (xor x y) y) and
 424         (eq/ne (xor x y) x).
 425
 426         PR tree-optimization/26622.
 427         * fold-const.c (fold_ternary) <COND_EXPR>: Call fold_convert
 428         on arg1.
 429
 430 2006-05-21  Bernhard Fischer  <aldot@gcc.gnu.org>
 431
 432         * tree-cfg.c: Prune whitespace.
 433         (debug_tree_cfg): Point to correct header containing the
 434         TDF_* defines.
 435
 436 2006-05-21  Bernhard Fischer  <aldot@gcc.gnu.org>
 437
 438         PR middle-end/25776
 439         * cgraphunit.c (verify_cgraph_node): Typo in error message.
 440
 441 2006-05-20  Andrew Pinski  <pinskia@physics.uc.edu>
 442
 443         PR middle-end/25776
 444         * cgraphunit.c (cgraph_optimize): Don't run ipa passes if error
 445         or sorry count is non zero.
 446
 447 2006-05-20  Andreas Schwab  <schwab@suse.de>
 448
 449         * config/pa/pa-linux.h (STRING_ASM_OP): Prepend and append a tab.
 450
 451 2006-05-19  Daniel Berlin  <dberlin@dberlin.org>
 452             Kenneth Zadeck <zadeck@naturalbridge.com>
 453
 454         PR rtl-optimization/26855
 455
 456         * df-scan.c (mw_reg_pool, mw_link_pool): New allocation pools for
 457         multiword refs.
 458         (df_scan_alloc): Added code to properly handle multiword hard
 459         registers and add all_blocks parameter.
 460         (df_scan_free_internal, df_insn_refs_delete, df_ref_record): Added
 461         code to properly handle multiword hard registers.
 462         (df_rescan_blocks): Added code to remove deleted blocks from
 463         bitmap.
 464         (df_ref_create_structure, df_ref_record): Added code to properly
 465         handle subregs.
 466         (df_ref_record_1): Changed DF_REF_CLOBBER into DF_REF_MUST_CLOBBER
 467         and set DF_REF_PARTIAL.
 468         (df_defs_record): Changed DF_REF_CLOBBER into DF_REF_MUST_CLOBBER.
 469         (df_uses_record): Added DF_REF_PARTIAL for subreg.
 470         (df_scan_add_problem): Added flags parameter.
 471         (df_ref_create_structure): Changed switching structure.
 472         (df_bb_refs_record): Fixed case where duplicate artificial refs
 473         were created.  Changed location of flags.
 474         (df_record_entry_block_defs): Added code to make stack pointer
 475         live in entry block.  Refined cases where frame pointer is needed.
 476         Changed location of flags.
 477         (df_record_exit_block_uses, df_insn_refs_record): Changed location of flags.
 478         (df_set_state): Removed function.
 479         (df_grow_reg_info, df_reg_chain_unlink, df_ref_remove,
 480         df_insn_create_insn_record, df_insn_refs_delete,
 481         df_ref_create_structure): Formatting changes.
 482         * df-core.c (df_mvs_dump, df_set_flags, df_clear_flags,
 483         df_delete_basic_block): New function.
 484         (df_init): Changed location of flags.
 485         (df_add_problem): Added flags parameter and the way flags are
 486         processed.
 487         (df_insn_uid_debug, df_ref_debug, debug_df_defno, debug_df_ref,
 488         debug_df_chain): Improved debugging output.
 489         (df_insn_debug, df_insn_uid_debug): Added multiword reg support.
 490         (df_refs_chain_dump): Removed df parameter.
 491         (df_iterative_dataflow): Added consistency check.
 492         (df_prune_to_subcfg): Made public.
 493         (df_analyze_problem): Added blocks_to_init parameter and made
 494         public.
 495         (df_ref_record, df_bb_refs_record, df_mark_reg,
 496          df_record_exit_block_uses): Whitespace changes.
 497         (df_dump): Whitespace changes.
 498         * df.h: Some reordering to remove forward references.
 499         (df_ref_flags.DF_REF_MW_HARDREG, DF_REF_PARTIAL,
 500         DF_REF_MUST_CLOBBER, DF_REF_MAY_CLOBBER): New fields.
 501         (df_ref_flags.DF_REF_CLOBBER): Deleted field.
 502         (dataflow.flags): New field.
 503         (df.flag): Deleted field.
 504         (df_alloc_function): Added additional bitmap parameter.
 505         (df_dependent_problem_function): New type.
 506         (df_problem.changeable_flags): New field.
 507         (df_ref_flags.DF_REF_DIES_AFTER_THIS_USE, DF_SCAN_INITIAL,
 508         DF_SCAN_GLOBAL, DF_SCAN_POST_ALLOC, df_state): Removed.
 509         (df_mw_hardreg): New struct.
 510         (DF_INSN_UID_MWS): New macro.
 511         (df_refs_chain_dump, df_ref_debug, df_chain_dump): Removed df
 512         parameter.
 513         (df_add_problem, df_ru_add_problem, df_rd_add_problem,
 514         df_lr_add_problem, df_ur_add_problem, df_urec_add_problem,
 515         df_ri_add_problem, df_scan_add_problem): Added flags parameter.
 516         (df_set_state): Removed function.
 517         (df_set_flags, df_clear_flags, df_delete_basic_block) New functions.
 518         * df-problems.c (df_chain_dump): Removed df parameter.
 519         (df_ru_alloc, df_rd_alloc, df_lr_alloc, df_ur_alloc,
 520         df_urec_alloc, df_chain_alloc, df_ri_alloc): Added all blocks
 521         parameter.
 522         (df_ru_alloc, df_rd_alloc): Now resets all blocks.
 523         (df_rd_bb_local_compute_process_def, df_ur_bb_local_compute,
 524         df_chain_create_bb, df_create_unused_note, df_ri_bb_compute):
 525         Split DF_REF_CLOBBER into DF_REF_MAY_CLOBBER and
 526         DF_REF_MUST_CLOBBER cases.
 527         (df_ru_bb_local_compute_process_def,
 528         df_rd_bb_local_compute_process_def, df_lr_bb_local_compute,
 529         df_lr_bb_local_compute, df_ur_bb_local_compute,
 530         df_chain_create_bb): Made subreg aware.
 531         (df_ru_bb_local_compute, df_rd_bb_local_compute,
 532         df_lr_bb_local_compute, df_lr_bb_local_compute,
 533         df_chain_create_bb): Cleanup to use proper macros.
 534         (df_ur_local_finalize, df_urec_local_finalize): Removed unnecessary
 535         code to fixup bitvectors.
 536         (df_ri_alloc): Cleared lifetime.
 537         (df_ignore_stack_reg, df_kill_notes, df_set_notes_for_mw,
 538         df_create_unused_note): New function.
 539         (df_ri_bb_compute, df_ri_compute): Added code to create/update
 540         REG_DEAD and REG_UNUSED notes as well as register information.
 541         (df_ru_dump, df_rd_dump, df_lr_dump, df_ur_dump, df_urec_dump,
 542         df_chains_dump): Fixed crash if problem was never run.
 543         (df_ru_add_problem, df_rd_add_problem, df_lr_add_problem,
 544         df_ur_add_problem, df_urec_add_problem, df_chain_add_problem,
 545         df_ri_add_problem): Processes flags in uniform manner.
 546         (df_ru_alloc, df_ru_local_compute, df_ru_confluence_n, df_ru_free,
 547         df_ru_dump, df_rd_local_compute, df_rd_confluence_n, df_rd_free,
 548         df_rd_dump, df_urec_free_bb_info): Formatting changes.
 549         (df_ru_free_bb_info, df_ru_bb_local_compute, df_ru_dump,
 550         df_rd_free_bb_info, df_rd_bb_local_compute_process_def,
 551         df_rd_bb_local_compute, df_rd_dump, df_lr_free_bb_info,
 552         df_lr_bb_local_compute, df_lr_local_compute, df_ur_free_bb_info,
 553         df_ur_dump, df_urec_free_bb_info, df_urec_dump,
 554         df_chain_create_bb, df_ri_bb_compute): Whitespace changes.
 555         * modulo-sched.c (sms_schedule): Added flag parameter to calls.
 556         * see.c (see_initialize_data): Ditto.
 557         * final.c (rest_of_clean_state) Added regstack_completed.
 558         * rtl.h (regstack_completed): Ditto.
 559         * reg-stack.c (regstack_completed): Ditto.
 560
 561 2006-05-19  Mike Stump  <mrs@apple.com>
 562
 563         * c-tree.h (default_conversion): Remove.
 564         * c-common.h (default_conversion): Add.
 565
 566 2006-05-19  Zdenek Dvorak <dvorakz@suse.cz>
 567
 568         * tree-vrp.c (valid_value_p): New function.
 569         (adjust_range_with_scev): Fail if the value of bound is not
 570         simple.
 571
 572 2006-05-19  Richard Sandiford  <richard@codesourcery.com>
 573
 574         * config/mips/linux-unwind.h: Include <asm/unistd.h>
 575         (mips_fallback_frame_state): Use syscall numbers to determine
 576         the appropriate li instruction for the current ABI.  Only use
 577         __NR_sigreturn for o32.
 578
 579 2006-05-19  Nicolas Setton  <setton@adacore.com>
 580
 581         * langhooks.h (struct lang_hooks): Add dwarf_name language hook.
 582         * langhooks.c (lhd_dwarf_name): New function.
 583         * langhooks-def.h (lhd_dwarf_name): Declare.
 584         (LANG_HOOKS_DWARF_NAME): New macro, defaults to lhd_dwarf_name.
 585         * dwarf2out.c (dwarf2_name): Use the dwarf_name language hook.
 586         * ada/misc.c (gnat_dwarf_name): New function.
 587         (LANG_HOOKS_DWARF_NAME): Define to gnat_dwarf_name.
 588
 589 2006-05-19  Richard Sandiford  <richard@codesourcery.com>
 590
 591         * libgcc2.c (MIN_UNITS_PER_WORD): Move default definition from
 592         libgcc2.h.
 593         (LIBGCC2_UNITS_PER_WORD): Provide default definition, using old
 594         MIN_UNITS_PER_WORD logic from libgcc2.h.  Do nothing if
 595         LIBGCC2_UNITS_PER_WORD > MIN_UNITS_PER_WORD.
 596         * libgcc2.h (MIN_UNITS_PER_WORD): Remove definition from here.
 597         Use LIBGCC2_UNITS_PER_WORD rather than MIN_UNITS_PER_WORD to
 598         determine the size of Wtype, etc.
 599         * mklibgcc.in (LIB2_SIDITI_CONV_FUNCS): New argument.
 600         (swfloatfuncs): New variable.
 601         (dwfloatfuncs): Likewise.
 602         (lib2funcs): Remove floating-point conversion functions from
 603         initial assignment.  Use LIB2_SIDITI_CONV_FUNCS to determine
 604         the set of conversion routines needed.  Allow entries to specify
 605         an object name, filename and word size.  Update users accordingly.
 606         * Makefile.in (libgcc.mk): Pass LIB2_SIDITI_CONV_FUNCS.
 607         * config/mips/t-mips (LIB2_SIDITI_CONV_FUNCS): Define.
 608
 609         Revert:
 610
 611         2006-02-08  Roger Sayle  <roger@eyesopen.com>
 612
 613         PR target/22209
 614         * config/fixtfdi.c: New libgcc source file.
 615         * config/fixunstfdi.c: New source file.
 616         * config/floatditf.c: New source file.
 617         * config/floatunditf.c: New souce file.
 618         * config/mips/t-iris6 (LIB2FUNCS_EXTRA): Include the new source
 619         files above instead of config/mips/_tilib.c.
 620         * config/mips/t-linux64 (LIB2FUNCS_EXTRA): Likewise.
 621
 622 2006-05-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
 623
 624         * pa/t-hpux-shlib (SHLIB_LINK): Remove `-lc'.
 625         * pa/pa-hpux11.h (LIB_SPEC): Update comment.
 626
 627 2006-05-18  Mike Stump  <mrs@apple.com>
 628
 629         Fix up vla, vm and [*] sematics.
 630
 631         PR c/18740
 632         PR c/7948
 633         PR c/25802
 634         PR c/27673
 635         * c-tree.h (struct c_arg_info): Add had_vla_unspec.
 636         (c_vla_unspec_p): Add.
 637         (c_vla_type_p): Add.
 638         * c-decl.c (struct c_scope): Add had_vla_unspec.
 639         (build_array_declarator): Add support for [*].
 640         (grokdeclarator): Likewise.
 641         (grokparms): Likewise.
 642         (get_parm_info): Likewise.
 643         * c-objc-common.c (c_vla_unspec_p): Likewise.
 644         * c-objc-common.h (LANG_HOOKS_TREE_INLINING_VAR_MOD_TYPE_P): Likewise.
 645         * c-parser.c (c_parser_typeof_specifier): Evaluate arguments to
 646         typeof when argument is a variably modified type not inside sizeof or alignof.
 647         (c_parser_direct_declarator_inner): Propagate errors.
 648         (c_parser_sizeof_expression): Add support for [*].
 649         (c_parser_parms_declarator): Initialize had_vla_unspec.
 650         (c_parser_parms_list_declarator): Likewise.
 651         * c-typeck.c (c_vla_type_p): Add.
 652         (composite_type): Add support for vla compositing.
 653         (comptypes_internal): Add support for vla compatibility.
 654         (c_expr_sizeof_expr): Evaluate vla arguments.
 655         * tree.c (variably_modified_type_p): Update comment for [*].
 656
 657 2006-05-18  Michael Matz  <matz@suse.de>
 658
 659         PR target/27599
 660         * config.host: Make assignments to host_xmake_file cumulative.
 661         * config.host (*-darwin*): Test $host, not $target.
 662
 663 2006-05-12  Stuart Hastings  <stuart@apple.com>
 664
 665         * config/i386/i386.opt (-mstackrealign): New flag.
 666         * config/i386/i386.c (force_align_arg_pointer): New attribute.
 667         (ix86_handle_cconv_attribute): Emit error when
 668         force_align_arg_pointer attribute collides with too many regparms.
 669         (ix86_function_regparm): Limit regparms when used with
 670         force_align_arg_pointer attribute.  (ix86_internal_arg_pointer):
 671         Support stack-realigning prologue in non-main functions.  Emit
 672         warning for nested functions under -mstackrealign, emit error for
 673         nested functions with force_align_arg_pointer attribute.
 674         * doc/extend.texi (force_align_arg_pointer): Document it.
 675         * doc/invoke.texi (-mstackrealign): Document it.
 676
 677 2006-05-17  Kazu Hirata  <kazu@codesourcery.com>
 678
 679         PR rtl-optimization/27477
 680         * combine.c (try_combine): Don't split a parallel consisting
 681         of two sets into two individual sets if both sets reference
 682         cc0.
 683
 684 2006-05-17  H.J. Lu  <hongjiu.lu@intel.com>
 685
 686         * config/arm/arm.opt (target_fpe_name): Remove VarExists.
 687         * config/rs6000/rs6000.opt (TARGET_NO_FP_IN_TOC): Likewise.
 688
 689         * doc/options.texi (VarExists): Updated.
 690
 691 2006-05-17  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
 692
 693         * unwind-dw2.c: Add declarations for uw_update_context and
 694         uw_frame_state_for.
 695         * pa/hpux-unwind.h (pa_fallback_frame_state): When an export stub is
 696         detected, advance frame state and context once to skip over stub.
 697
 698 2006-05-17  Sebastian Pop  <pop@cri.ensmp.fr>
 699
 700         PR middle-end/20256
 701         PR middle-end/26435
 702         * tree-loop-linear.c (linear_transform_loops): Don't test perfect_nest_p.
 703         Call rewrite_into_loop_closed_ssa only when something changed.
 704         * lambda.h (gcc_loopnest_to_lambda_loopnest): Update declaration.
 705         * lambda-code.c (can_convert_to_perfect_nest): Declared.
 706         (gcc_loopnest_to_lambda_loopnest): Removed need_perfect_nest parameter.
 707         Test for perfect_nest_p here.  Fix formating.
 708         (replace_uses_equiv_to_x_with_y): Fix formating.
 709         (stmt_uses_op): Removed.
 710         (can_convert_to_perfect_nest): Removed loopivs parameter.
 711         Complete the test by checking the scalar dependences.
 712         (perfect_nestify): Remove the test for can_convert_to_perfect_nest.
 713         Fix formating.
 714
 715 2005-05-17  Bernd Schmidt  <bernd.schmidt@analog.com>
 716
 717         PR bootstrap/22541
 718         From Dan Kegel <dank@kegel.com>:
 719         * Makefile.in: Strip "dir/../" combinations from SYSTEM_INCLUDE_DIR.
 720
 721 2006-05-17  Eric Botcazou  <ebotcazou@adacore.com>
 722
 723         * tree.c (variably_modified_type_p) <ARRAY_TYPE>: Return true
 724         if the element type is variably modified without recursing.
 725
 726 2006-05-17  Sebastian Pop  <pop@cri.ensmp.fr>
 727
 728         PR middle-end/27332
 729         * tree-loop-linear.c (try_interchange_loops): Test for
 730         no data dependences.
 731
 732 2006-05-17  Zdenek Dvorak <dvorakz@suse.cz>
 733
 734         PR tree-optimization/27548
 735         * tree-scalar-evolution.c (scev_const_prop): Do not prolong life
 736         range of ssa names that appear on abnormal edges.
 737         * tree-ssa-loop-ivopts.c (contains_abnormal_ssa_name_p): Export.
 738         * tree-flow.h (contains_abnormal_ssa_name_p): Declare.
 739
 740 2005-05-17  Bernd Schmidt  <bernd.schmidt@analog.com>
 741
 742         PR middle-end/27620
 743         * expr.c (safe_from_p): Handle CONSTRUCTOR again.
 744
 745 2006-05-17  Jakub Jelinek  <jakub@redhat.com>
 746
 747         PR middle-end/27415
 748         * tree.h (OMP_PARALLEL_COMBINED): Define.
 749         * gimplify.c (struct gimplify_omp_ctx): Add is_combined_parallel field.
 750         (new_omp_context): Add is_combined_parallel argument.
 751         (gimplify_scan_omp_clauses): Add in_combined_parallel argument, adjust
 752         new_omp_context caller.
 753         (gimplify_omp_parallel, gimplify_omp_for, gimplify_omp_workshare):
 754         Adjust gimplify_scan_omp_clauses callers.
 755         (omp_is_private): Issue errors if iteration variable is firstprivate
 756         or reduction in the current context.
 757         * c-parser.c (c_parser_omp_parallel): Set OMP_PARALLEL_COMBINED
 758         on combined parallel workshare constructs.
 759
 760 2006-05-16  H.J. Lu  <hongjiu.lu@intel.com>
 761
 762         * Makefile.in (GCC_OBJS): Replace options.o with gcc-options.o.
 763         (gcc-options.o): New rule.
 764
 765         * optc-gen.awk: Protect variables for gcc-options.o with
 766         #ifdef GCC_DRIVER/#endif.
 767
 768 2006-05-16  Daniel Berlin <dberlin@dberlin.org>
 769
 770         Fix PR tree-optimization/27373
 771         * tree-ssa-forwprop.c: (forward_propagate_addr_expr_1): Add argument.
 772          (forward_propagate_addr_expr): Update call.
 773
 774 2006-05-16  H.J. Lu  <hongjiu.lu@intel.com>
 775
 776         * doc/options.texi: Move the Negative option.
 777
 778 2006-05-16  Richard Guenther  <rguenther@suse.de>
 779
 780         PR tree-optimization/22303
 781         * tree-ssa-ccp.c (fold_const_aggregate_ref): Handle reads
 782         from STRING_CSTs.
 783         (evaluate_stmt): Fall back to fold_const_aggregate_ref, if
 784         ccp_fold did not simplify the statement.
 785
 786 2006-05-16  H.J. Lu  <hongjiu.lu@intel.com>
 787
 788         PR driver/26885
 789         * Makefile.in (GCC_OBJS): New.
 790         (OBJS-common): Add opts-common.o.
 791         (xgcc$(exeext)): Replace gcc.o with $(GCC_OBJS).
 792         (cpp$(exeext)): Likewise.
 793         (gcc.o): Also depend on opts.h.
 794         (opts-common.o): New.
 795
 796         * common.opt (gcoff): Add Negative(gdwarf-2).
 797         (gdwarf-2): Add Negative(gstabs).
 798         (gstabs): Add Negative(gstabs+).
 799         (gstabs+): Add Negative(gvms).
 800         (gvms): Add Negative(gxcoff).
 801         (gxcoff): Add Negative(gxcoff+).
 802         (gxcoff+): Add Negative(gcoff).
 803         * config/i386/i386.opt (m32): Add Negative(m64).
 804         (m64): Add Negative(m32).
 805
 806         * doc/options.texi: Document the Negative option.
 807
 808         * gcc.c: Include "opts.h".
 809         (main): Call prune_options after expandargv.
 810
 811         * optc-gen.awk: Generate common declarations for all flag
 812         variables in options.c. Output the neg_index field.
 813
 814         * opts.c (find_opt): Moved to ...
 815         * opts-common.c: Here. New file.
 816
 817         * opts.h (cl_option): Add a neg_index field.
 818         (find_opt): New.
 819         (prune_options): Likewise.
 820
 821 2006-05-16  Jakub Jelinek  <jakub@redhat.com>
 822
 823         PR middle-end/27573
 824         * omp-low.c (expand_omp_parallel): Don't assert
 825         .OMP_DATA_I = &.OMP_DATA_O is the first statement in the block,
 826         instead search for it.
 827
 828         PR c/27499
 829         * gimplify.c (gimplify_omp_for): Remove assertion that iteration var
 830         is signed.
 831
 832 2006-05-16  Andreas Schwab  <schwab@suse.de>
 833
 834         * doc/tm.texi (TARGET_LIBGCC_SDATA_SECTION): Add missing @end
 835         defmac.
 836
 837 2006-05-15  Roger Sayle  <roger@eyesopen.com>
 838
 839         PR target/26600
 840         * config/i386/i386.c (legitimate_constant_p) <CONST_DOUBLE>: TImode
 841         integer constants other than zero are only legitimate on TARGET_64BIT.
 842         <CONST_VECTOR> Only zero vectors are legitimate.
 843         (ix86_cannot_force_const_mem): Integral and vector constants can
 844         always be put in the constant pool.
 845
 846 2006-05-16  DJ Delorie  <dj@redhat.com>
 847
 848         * crtstuff.c (__dso_handle): Set section from
 849         TARGET_LBIGCC_SDATA_SECTION if defined.
 850         * doc/tm.texi (TARGET_LIBGCC_SDATA_SECTION): Document.
 851         * config/mips/mips.h (TARGET_LIBGCC_SDATA_SECTION): Define.
 852
 853 2006-05-16  Danny Smith  <dannysmith@users.sourceforge.net>
 854
 855         PR target/27599
 856         * config.host (i[34567]86-*-mingw*): Append i386/x-mingw32 to
 857         host_xmake_file.
 858
 859 2006-05-16  Ben Elliston  <bje@au.ibm.com>
 860
 861         * tree-cfg.c (split_edge_bb_loc): Remove unused variable `src'.
 862
 863 2006-05-15  Per Bothner  <per@bothner.com>
 864
 865         * tree.c: (last_annotated_node): Use sources_locus typedef.
 866         This permits bootstrapping with --enable-mapped-location.
 867
 868 2006-05-15  Zdenek Dvorak <dvorakz@suse.cz>
 869
 870         PR tree-optimization/26830
 871         * tree-into-ssa.c (struct ssa_name_info): Add age field.
 872         (info_for_ssa_name, current_info_for_ssa_name_age,
 873         blocks_to_update): New variables.
 874         (get_ssa_name_ann): Use info_for_ssa_name instead of SSA_NAME_AUX.
 875         (clear_ssa_name_info, initialize_flags_in_bb,
 876         mark_block_for_update): New functions.
 877         (mark_def_sites, rewrite_stmt): Assert that blocks_to_update is NULL.
 878         (insert_phi_nodes_for, mark_use_interesting, prepare_block_for_update,
 879         prepare_def_site_for): Use mark_block_for_update.
 880         (mark_def_interesting): Assert that the processed block is marked in
 881         blocks_to_update.  Do not take blocks argument.
 882         (prepare_use_sites_for, prepare_names_to_update): Do not take blocks
 883         argument.
 884         (rewrite_update_init_block, rewrite_update_stmt): Only process
 885         blocks with statements to rewrite.
 886         (delete_update_ssa): Do not clear SSA_NAME_AUX.
 887         (update_ssa): Initialize and free blocks_to_update.  Do not
 888         clear flags on statements.  Do not use blocks bitmap.
 889         * tree.h (SSA_NAME_AUX): Removed.
 890         (struct tree_ssa_name): Removed aux field.
 891         * print-tree.c (print_node): Do not print SSA_NAME_AUX.
 892
 893 2006-05-15  Richard Guenther  <rguenther@suse.de>
 894
 895         PR tree-optimization/27603
 896         * tree-ssa-loop-niter.c (infer_loop_bounds_from_undefined):
 897         Do computations in original type.
 898
 899 2006-05-15  Mircea Namolaru  <namolaru@il.ibm.com>
 900
 901         * see.c: Code style changes such as redundant paranthesis,
 902         redundant intialization of local variables etc.
 903         (see_main): Declared now as static.
 904         * doc/invoke.texi: Update that -fsee is not enabled by
 905         default at -O3.
 906
 907 2006-05-15  Jakub Jelinek  <jakub@redhat.com>
 908
 909         * omp-low.c (check_omp_nesting_restrictions): New function.
 910         (scan_omp_1): Call it.
 911
 912         PR middle-end/27416
 913         * omp-low.c (build_outer_var_ref): If VAR is reference in orphaned
 914         construct, return *VAR.
 915
 916 2006-05-14  Kaz Kojima  <kkojima@gcc.gnu.org>
 917
 918         PR rtl-optimization/27406
 919         * bt-load.c (migrate_btr_def): Skip the block having abnormal
 920         edges.
 921
 922 2006-05-14  Roger Sayle  <roger@eyesopen.com>
 923
 924         PR rtl-optimization/27538
 925         * combine.c (expand_compound_operation): Call gen_lowpart
 926         before calling simplify_shift_const.
 927
 928 2006-05-14  Roger Sayle  <roger@eyesopen.com>
 929
 930         PR rtl-optimization/22563
 931         * expmed.c (store_fixed_bit_field): When using AND and IOR to store
 932         a fixed width bitfield, always force the intermediates into psuedos.
 933
 934 2006-05-14  Bernhard Fischer  <aldot@gcc.gnu.org>
 935
 936         PR 27501
 937         * mkconfig.sh: Use operator = instead of == for test.
 938
 939 2006-05-13  Nick Clifton  <nickc@redhat.com>
 940
 941         * dwarf2out.c (dbx_reg_number): Check return value from
 942         LEAF_REG_REMAP and only use it if it is valid.
 943         (multiple_reg_loc_descriptor): Likewise.
 944
 945 2006-05-13  Richard Guenther  <rguenther@suse.de>
 946
 947         * config.host <i[34567]86-*-cygwin*>: Append i386/x-cygwin to
 948         host_xmake_file.
 949
 950 2006-05-13  Steven Bosscher  <stevenb.gcc@gmail.com>
 951
 952         * df-core.c (df_bb_regno_last_use_find): Do not look for dataflow
 953         information attached to non-INSNs such as NOTEs.
 954         (df_bb_regno_first_def_find, df_bb_regno_last_def_find): Likewise.
 955
 956 2006-05-12  Andreas Krebbel  <krebbel1@de.ibm.com>
 957
 958         * config/s390/s390.c (s390_const_ok_for_constraint_p): Disallow -4G for
 959         On contraint.
 960         * config/s390/s390.md: Adjust comment describing On constraint.
 961
 962 2006-05-11  Jan Hubicka  <jh@suse.cz>
 963
 964         * cgraphunit.c (decide_is_function_needed): Don't force always_inline
 965         to be output at -O0.
 966
 967 2006-05-11  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
 968
 969         PR middle-end/27384
 970         * fold-const.c (size_binop): Move sanity check for arguments to
 971         the beginning of the function.
 972
 973         PR middle-end/27488
 974         * fold-const.c (tree_expr_nonnegative_p): Return early on invalid
 975         expression.
 976
 977 2006-05-11  Richard Guenther  <rguenther@suse.de>
 978
 979         PR middle-end/27529
 980         * fold-const.c (fold_unary): Handle intermediate conversion
 981         to a pointer type like intermediate conversion to an integer
 982         type in folding of (T1)(T2)var to var.
 983         Match the code to the comment in the final conversion for
 984         (T1)(T2)var to (T1)var regarding to type precision.  Rather
 985         than disallow T1 being of pointer type, assert that both T1
 986         and var are of pointer type or not.  Make sure not to fall
 987         over the frontends lazyness wrt array to pointer decay though.
 988
 989 2006-05-10  Richard Earnshaw  <rearnsha@arm.com>
 990
 991         * arm.c (arm_struct_value_rtx): Delete.
 992         (TARGET_STRUCT_VALUE_RTX): Use the default definition.
 993         (arm_init_cumulative_args): Always initialize nregs to zero.
 994
 995 2006-05-10  Richard Guenther  <rguenther@suse.de>
 996
 997         PR tree-optimization/27532
 998         * tree-object-size.c (plus_expr_object_size): Fix typo.
 999
1000 2006-05-10  Kazu Hirata  <kazu@codesourcery.com>
1001
1002         PR target/24949
1003         * config/m68k/m68k.md (ashrdi_const32, ashrdi_const32_mem,
1004         ashrdi_const, ashrdi3): Use a scratch register.
1005
1006 2006-05-10  Richard Guenther  <rguenther@suse.de>
1007
1008         PR tree-optimization/27302
1009         * fold-const.c (operand_equal_p): For two comparisons,
1010         try comparison of one comparison code swapped if that yields
1011         the same code.
1012
1013 2006-05-10  Ben Elliston  <bje@au.ibm.com>
1014
1015         * tree-pretty-print.c (pretty_print_string): No need to handle
1016         '\0' as a special character.
1017
1018         * tree.h: Include "hashtab.h".
1019         (iterative_hash_expr): Use hashval_t in its prototype.
1020         * Makefile.in (TREE_H): Add $(HASHTAB_H).
1021
1022 2006-05-09  Steve Ellcey  <sje@cup.hp.com>
1023
1024         PR bootstrap/26872
1025         * config.gcc (hppa[12]*-*-hpux10*): Set gas to yes.
1026         (hppa*64*-*-hpux11*): Ditto.
1027         (hppa[12]*-*-hpux11*): Ditto.
1028
1029 2006-05-09  David Edelsohn  <edelsohn@gnu.org>
1030
1031         PR target/26545
1032         * config/rs6000/aix41.h (TARGET_64BIT): Define.
1033
1034 2006-05-09  Michael Matz  <matz@suse.de>
1035
1036         * config.host (<i[34567]86-*-*, x86_64-*-*>): Set
1037         host_extra_gcc_objs and host_xmake_file.
1038         (<*-*-linux*>): Don't overwrite host_xmake_file.
1039         * gcc.c (static_spec_functions): Add EXTRA_SPEC_FUNCTIONS.
1040         * config/i386/i386.h (EXTRA_SPEC_FUNCTIONS): Define.
1041         (host_detect_local_cpu): Declare.
1042         (CC1_CPU_SPEC): Add -march=native and -mtune=native cases.
1043         * config/i386/i386.c (override_options): Handle -mtune=native
1044         as -mtune=generic.
1045         * config/i386/x-i386: New file.
1046         * config/i386/driver-i386.c: New file.
1047         * doc/invoke.texi (<i386 and x86-64 Options>): Describe
1048         cpu-type "native".
1049
1050 2006-05-09  Dirk Mueller  <dmueller@suse.de>
1051         Richard Guenther  <rguenther@suse.de>
1052
1053         PR middle-end/27498
1054         * fold-const.c (fold_read_from_constant_string): Relax check
1055         for matching types to matching modes.
1056
1057 2006-05-09  Zdenek Dvorak <dvorakz@suse.cz>
1058
1059         PR rtl-optimization/27335
1060         * loop-unroll.c (peel_loops_completely): Use loops->parray to walk the
1061         loops.
1062
1063 2006-05-08  Chao-ying Fu  <fu@mips.com>
1064             Richard Sandiford  <richard@codesourcery.com>
1065
1066         * config/mips/mips-ps-3d.md (scc_ps, s<code>_ps): New patterns.
1067         (vcondv2sf, sminv2sf3, smaxv2sf3): Likewise.
1068         * config/mips/mips.md (UNSPEC_SCC): New constant.
1069         * config/mips/mips-protos.h (mips_expand_vcondv2sf): Declare.
1070         * config/mips/mips.c (mips_reverse_fp_cond_p): New function.
1071         (mips_emit_compare): Use it.
1072         (mips_expand_vcondv2sf): New function.
1073
1074 2006-05-08  Daniel Berlin  <dberlin@dberlin.org>
1075
1076         Fix PR tree-optimization/27093
1077         * tree-ssa-alias.c (recalculate_used_alone): Mark variables for
1078         renaming when they become not-used_alone.
1079
1080 2006-05-08  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1081
1082         * hpux-unwind.h (pa_fallback_frame_state): Handle return parameter
1083         relocation and relocation stubs.
1084
1085 2006-05-08  Eric Christopher  <echristo@apple.com>
1086
1087         * unwind-dw2-fde-darwin.c (examine_objects): Only check data
1088         section for ppc.
1089
1090 2006-05-08  Jan Hubicka  <jh@suse.cz>
1091
1092         PR middle-end/24561
1093         * cgraphunit.c (decide_is_function_needed): When not optimizing even
1094         unused static functions are needed.
1095
1096 2006-05-08  Roger Sayle  <roger@eyesopen.com>
1097
1098         PR target/27158
1099         * reload.c (find_reloads_toplev): Only return the simplified SUBREG
1100         of a reg_equiv_constant if the result is a legitimate constant.
1101
1102 2006-05-08  Uros Bizjak  <uros@kss-loka.si>
1103
1104         PR target/27277
1105         * config/i386/i386.c (ix86_rtx_costs) [FLOAT_EXTEND]: For
1106         standard 80387 constants, raise the cost to prevent
1107         compress_float_constant() to generate load from memory.
1108
1109 2006-05-08  Kazu Hirata  <kazu@codesourcery.com>
1110
1111         * config/arm/constraints.md (c): Fix a typo.
1112
1113         * see.c, tree-flow-inline.h, tree-phinodes.c: Fix comment
1114         typos.
1115
1116 2006-05-07  H.J. Lu  <hongjiu.lu@intel.com>
1117
1118         PR target/24879
1119         * config/i386/pmmintrin.h (_mm_monitor): Remove macro. Use
1120         inline function.
1121         (_mm_mwait): Likewise.
1122
1123         * config/i386/sse.md (sse3_mwait): Replace "mwait\t%0, %1" with
1124         "mwait".
1125         (sse3_monitor): Make it 32bit only.
1126         (sse3_monitor64): New. 64bit monitor.
1127
1128 2006-05-07  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
1129
1130         PR target/27421
1131         * config/i386/i386.c (classify_argument): Skip fields with invalid
1132         types.
1133
1134 2006-05-07  Richard Guenther  <rguenther@suse.de>
1135
1136         PR tree-optimization/27409
1137         * tree-ssa-structalias.c (get_constraint_for_component_ref):
1138         Do not try to find zero-sized subvars.
1139
1140 2006-05-07  Richard Guenther  <rguenther@suse.de>
1141
1142         PR tree-optimization/27136
1143         * tree-ssa-loop-niter.c (get_val_for): Correct function
1144         comment, assert requirements.
1145         (loop_niter_by_eval): Stop processing if the iterated
1146         value did not simplify.
1147
1148 2006-05-07  Mircea Namolaru  <namolaru@il.ibm.com>
1149
1150         * opts.c (flag_see): remove its setting at -O3.
1151
1152 2006-05-07  Richard Earnshaw  <rearnsha@arm.com>
1153
1154         * genpeep.c (main): Make insn-peep.c depend on flags.h.
1155         * arm/constraints.md: New file.
1156         * arm.h (REG_CLASS_FROM_LETTER_P): Delete.
1157         (CONST_OK_FOR_ARM_LETTER, CONST_OK_FOR_THUMB_LETTER)
1158         (CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_ARM_LETTER)
1159         (CONST_DOUBLE_OK_FOR_LETTER_P, EXTRA_CONSTRAINT_STR_ARM)
1160         (CONSTRAINT_LEN, EXTRA_CONSTRAINT_THUMB, EXTRA_CONSTRAINT_STR)
1161         (EXTRA_MEMORY_CONSTRAINT): Likewise.
1162         * arm.md: Include constraints.md.
1163         (thumb_movsi_insn): Use satisfies_constraint_J.
1164         (movhi, movqi): Use satisfies_constraint_I.
1165
1166 2006-04-29 Anatoly Sokolov <aesok@post.ru>
1167
1168         * config/avr/avr.h (CRT_BINUTILS_SPECS): Fixed crt* file name
1169         for atmeg a645 device.
1170
1171 2006-05-06   Richard Guenther  <rguenther@suse.de>
1172
1173         PR tree-optimization/27151
1174         * tree-vect-transform.c (vectorizable_condition): Punt on
1175         values that have a different type than the condition.
1176
1177 2006-05-03  Aldy Hernandez  <aldyh@redhat.com>
1178
1179         PR/21391
1180         * c-parser.c (c_parser_cast_expression): Only insert casts into
1181         hash table if pointer.
1182         * function.c (used_types_insert_helper): Rename from
1183         used_types_insert.
1184         (used_types_insert): Call used_types_insert_helper.
1185         * function.h (used_types_insert): Accept only one argument.
1186
1187 2006-05-05  David Edelsohn  <edesohn@gnu.org>
1188
1189         * config/rs6000/rs6000.md: Mark all "X" constraints for clobbered
1190         scratch with output modifier.
1191
1192 2006-05-04  David Edelsohn  <edelsohn@gnu.org>
1193
1194         PR target/26481
1195         * config/rs6000/rs6000.md (stmsi_power): Mark clobber constraint
1196         with output modifier.
1197
1198 2006-05-04  Richard Sandiford  <richard@codesourcery.com>
1199
1200         PR target/26765
1201         * config/mips/mips.c (mips_symbolic_address_p): Return true
1202         for SYMBOL_TLSGD, SYMBOL_TLSLDM, SYMBOL_DTPREL, SYMBOL_TPREL,
1203         SYMBOL_GOTTPREL, and SYMBOL_TLS.
1204
1205 2006-05-04  Richard Guenther  <rguenther@suse.de>
1206
1207         PR tree-optimization/14287
1208         PR tree-optimization/14844
1209         PR tree-optimization/19792
1210         PR tree-optimization/21608
1211         PR tree-optimization/27090
1212         * tree-ssa-pre.c (try_combine_conversion): New function.
1213         (compute_avail): After constructing the value-handle
1214         expression, use try_combine_conversion to combine NOP_EXPRs
1215         with previous value-handle expressions and use the result if it
1216         is available.
1217
1218 2006-05-04  Joseph S. Myers  <joseph@codesourcery.com>
1219
1220         * config/mips/linux64.h (DWARF_OFFSET_SIZE): Remove.
1221
1222 2006-05-04  Jan Hubicka  <jh@suse.cz>
1223
1224         PR middle-end/25962
1225         * cgraphunit.c (verify_cgraph_node): Fix cgraph_hash testing.
1226
1227 2006-05-04  Bernd Schmidt  <bernd.schmidt@analog.com>
1228
1229         * config/bfin/predicates.md (const01_rtx): Tell generator programs
1230         that this only matches CONST_INTs.  All users changed to VOIDmode
1231         operands.
1232
1233         * config/bfin/bfin.c: Include "optabs.h".
1234         (bfin_rtx_costs): Some costs for vector operations, to allow combine
1235         to do more work.
1236         (enum bfin_builtins): Add a number of fractional and vector builtins.
1237         (bfin_init_builtins): Likewise.
1238         (struct builtin_description, bdesc_2arg, bdesc_1arg): New.
1239         (safe_vector_operand, bfin_expand_binop_builtin,
1240         bfin_expand_unop_builtin): New functions.
1241         (bfin_expand_builtin): Handle the new builtins.
1242         * config/bfin/bfin.h (TARGET_CPU_CPP_BUILTINS): Define
1243         __ADSPBLACKFIN__.
1244
1245 2006-05-04  Leehod Baruch  <leehod@il.ibm.com>
1246
1247         * see.c: New file.
1248         * Makefile.in (OBJS-common): Add see.o.
1249         (see.o): Add dependencies.
1250         * common.opt (fsee): New flag for the see optimization was added.
1251         * opts.c (flag_see): Initialized.
1252         * passes.c (init_optimization_passes, pass_see): New pass.
1253         * rtl.h (see_main): Declaration as extern.
1254         * timevar.def (TV_SEE): New.
1255         * tree-pass.h (pass_see): Declaration as extern.
1256         * invoke.texi (-fsee): Document.
1257         * recog.c (validate_simplify_insn): New function.
1258         * recog.h (validate_simplify_insn): Declaration as extern.
1259         * df-problems.c (df_chain_dump): Check for NULL.
1260
1261 2006-05-04  Kenneth Zadeck <zadeck@naturalbridge.com>
1262             Daniel Berlin  <dberlin@dberlin.org>
1263
1264         * cfgrtl.c (insert_insn_bb_end_new): New function.
1265         * basic-block.h (insert_insn_bb_end_new): Declaration as extern.
1266
1267 2006-05-04  Leehod Baruch  <leehod.baruch@weizmann.ac.il>
1268
1269         * df.h (struct web_entry): Moved from web.c.
1270         (union_defs): Declaration as extern.
1271         (unionfind_root): Likewise.
1272         (unionfind_union): Likewise.
1273         * web.c (struct web_entry): Moved to df.h.
1274         (unionfind_root): Remove static declaration.
1275         (unionfind_union): Likewise.
1276         (union_defs): Likewise and generalize to use callback function.
1277         (web_main): Update arguments for union_defs function call.
1278
1279 2006-05-04  Richard Guenther  <rguenther@suse.de>
1280
1281         PR tree-optimization/26447
1282         * tree-ssa-pre.c (realify_fake_stores): For necessary loads
1283         produce SSA_NAME copies before the store stmt to avoid
1284         breaking exception handling.
1285
1286 2006-05-04  Jakub Jelinek  <jakub@redhat.com>
1287
1288         PR middle-end/27388
1289         * gimplify.c (omp_is_private): If var is shared in some outer context,
1290         return false instead of true.  Stop searching on parallel context
1291         boundary.
1292
1293 2006-05-03  Alexandre Oliva  <aoliva@redhat.com>
1294
1295         PR java/8260
1296         * coverage.c: Use get_gcov_unsigned_t() instead of
1297         unsigned_type_node all over.
1298
1299 2006-05-02  Andrew MacLeod  <amacleod@redhat.com>
1300
1301         PR tree-optimization/27381
1302         * tree-phinodes.c (remove_phi_arg_num): When moving a phi argument,
1303         maintain the same immediate_use links.
1304         * tree-ssa-operands.c (dump_immediate_uses_for): Show iteration marker
1305         node rather than segfaulting.
1306
1307 2006-05-03  Jakub Jelinek  <jakub@redhat.com>
1308
1309         PR fortran/27395
1310         * gimplify.c (gimplify_scan_omp_clauses): Compare OMP_CLAUSE_CODE
1311         rather than TREE_CODE to OMP_CLAUSE_REDUCTION.  Set also GOVD_SEEN
1312         bit for OMP_CLAUSE_REDUCTION_PLACEHOLDER.
1313
1314 2006-05-02  Daniel Berlin  <dberlin@dberlin.org>
1315
1316         Fix PR tree-optimization/26626
1317         * tree-ssa-structalias.c (compute_points_to_sets): For now, solve
1318         always.
1319         * tree-ssa-operands.c (access_can_touch_variable): Allow
1320         typecasting through union pointers.
1321
1322 2006-05-02  Jakub Jelinek  <jakub@redhat.com>
1323
1324         PR c++/26943
1325         * omp-low.c (maybe_lookup_decl_in_outer_ctx): New function.
1326         (build_outer_var_ref): Use maybe_lookup_decl_in_outer_ctx
1327         to find if var will be a global variable even in the nested context.
1328         (omp_copy_decl): Only check for global variable at the end, it might
1329         be overridden in outer contexts.
1330         (scan_sharing_clauses): For global variables don't create a field.
1331         (lower_rec_input_clauses): Do nothing for global shared variables.
1332         Emit a barrier at the end of ILIST if there were any decls in both
1333         firstprivate and lastprivate clauses.
1334         (lower_send_clauses): Do nothing for global variables except for
1335         COPYIN.
1336
1337 2006-05-02  Zdenek Dvorak <dvorakz@suse.cz>
1338
1339         * tree.c (unsigned_type_for, signed_type_for): Make sure a type
1340         of the correct signedness is returned.
1341
1342 2006-05-02  Jeff Law  <law@redhat.com>
1343
1344         PR tree-optimization/27364
1345         * tree-vrp.c (vrp_int_const_binop): Fix detection of overflow from
1346         multiply expressions.
1347
1348 2006-05-02  Tom Tromey  <tromey@redhat.com>
1349
1350         * tree-flow-inline.h (op_iter_init_phiuse): Fixed typo.
1351
1352 2006-05-02  Kazu Hirata  <kazu@codesourcery.com>
1353
1354         PR target/27387
1355         * arm.c (arm_output_mi_thunk): Use pc-relative addressing when
1356         -mthumb -fPIC are used.
1357
1358 2006-05-02  Stanislaw Skowronek  <skylark@linux-mips.org>
1359             Joshua Kinard  <kumba@gentoo.org>
1360
1361         PR target/25871
1362         * config/mips/mips.h (TRAMPOLINE_TEMPLATE): Avoid 32-bit moves
1363         with 64-bit pointers.
1364
1365 2006-05-02  Paul Brook  <paul@codesourcery.com>
1366
1367         * config/arm/arm.c (add_minipool_forward_ref): Check if insn
1368         and pool overlap.
1369         (create_fix_barrier): Check that a suitable barrier location is
1370         found.
1371         (arm_reorg): Include ftmp->address in allowable range of addresses.
1372
1373 2006-05-02  David Billinghurst <David.Billinghurst@riotinto.com>
1374
1375         PR ada/27366
1376         * ada/env.c (__gnat_clearenv): Use unsetenv() to clear environment
1377         on Cygwin.
1378
1379 2006-05-02  Jakub Jelinek  <jakub@redhat.com>
1380
1381         PR middle-end/27337
1382         * gimplify.c (gimplify_scan_omp_clauses): Handle INDIRECT_REF
1383         around RESULT_DECL for result passed by reference.
1384         (gimplify_expr): Call omp_notice_variable when RESULT_DECL is seen.
1385         * omp-low.c (use_pointer_for_field): Don't look at
1386         DECL_HAS_VALUE_EXPR_P for RESULT_DECLs.
1387         (scan_omp_1): Call remap_decl on RESULT_DECLs.
1388         (lower_rec_input_clauses): Don't allocate VLA memory for the second
1389         time or var for passing by reference for
1390         OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE clauses.  Allow creation of
1391         TREE_ADDRESSABLE variables when passing by reference.
1392
1393         * omp-low.c (dump_omp_region): Fix output formatting.
1394
1395         PR middle-end/27328
1396         * omp-low.c (remove_exit_barrier): Handle NULL exit_bb.
1397         (expand_omp_parallel): Likewise.
1398         * tree-cfg.c (move_sese_region_to_fn): Likewise.
1399
1400         PR middle-end/27325
1401         * omp-low.c (lower_omp_sections): Call maybe_catch_exception
1402         on statement list containing also constructors and destructors.
1403         (lower_omp_single, lower_omp_for, lower_omp_parallel): Likewise.
1404
1405         PR middle-end/27310
1406         * except.c (duplicate_eh_regions): Fix clearing of
1407         cfun->eh->region_array entries.
1408
1409 2006-05-01  DJ Delorie  <dj@redhat.com>
1410
1411         * configure.ac (gcc_cv_nm): Don't use an in-tree nm if
1412         build!=host.
1413         (gcc_cv_objdump): Likewise.
1414         * configure: Regenerated.
1415
1416 2006-05-01  Kazu Hirata  <kazu@codesourcery.com>
1417
1418         PR target/27374
1419         * config/arm/vfp.md (*arm_movdi_vfp): Correct the output
1420         templates for case 3 and 4.
1421
1422 2006-05-01  DJ Delorie  <dj@redhat.com>
1423
1424         * vec.c: Include bconfig.h when appropriate.
1425         * Makefile.in (build/vec.o): Adjust dependencies.
1426         * mkconfig.sh: Make sure config.h isn't used for build machine
1427         compiles.
1428
1429 2006-05-01  Zdenek Dvorak <dvorakz@suse.cz>
1430
1431         * tree-into-ssa.c (phis_to_rewrite, blocks_with_phis_to_rewrite): New
1432         variables.
1433         (mark_phi_for_rewrite): New function.
1434         (insert_phi_nodes_for, mark_use_interesting): Call
1435         mark_phi_for_rewrite.
1436         (rewrite_update_phi_arguments): Traverse only phis in phis_to_rewrite.
1437         (update_ssa): Initialize and free phis_to_rewrite.
1438
1439 2006-05-01  Zdenek Dvorak <dvorakz@suse.cz>
1440
1441         PR rtl-optimization/27291
1442         * loop-doloop.c (add_test, doloop_modify): Handle the case condition is
1443         folded to a constant.
1444
1445 2006-05-01  Zdenek Dvorak <dvorakz@suse.cz>
1446
1447         PR tree-optimization/27283
1448         * tree-ssa-loop-ivopts.c (struct nfe_cache_elt): Store just trees,
1449         not whole # of iteration descriptions.
1450         (niter_for_exit): Return just # of iterations.  Fail if # of iterations
1451         uses abnormal ssa name.
1452         (niter_for_single_dom_exit): Ditto.
1453         (find_induction_variables, may_eliminate_iv): Expect niter_for_exit to
1454         return just the number of iterations.
1455
1456 2006-05-01  Zdenek Dvorak <dvorakz@suse.cz>
1457
1458         PR tree-optimization/27144
1459         * tree-ssa-loop-niter.c (derive_constant_upper_bound): New function.
1460         (record_estimate): Only record constant upper bound.
1461         (infer_loop_bounds_from_undefined): Call
1462         compute_estimated_nb_iterations just once.
1463         (proved_non_wrapping_p): Renamed to ...
1464         (n_of_executions_at_most): ... this.  Expect bound to be a constant.
1465         (convert_step_widening, scev_probably_wraps_p): Call
1466         n_of_executions_at_most instead of proved_non_wrapping_p.
1467         (substitute_in_loop_info): Do not replace values in bounds.
1468         * cfgloop.h (struct nb_iter_bound): Remove "additional" field.  Update
1469         comments.
1470
1471 2006-05-01  Richard Henderson  <rth@redhat.com>
1472
1473         PR c/27358
1474         * c-parser.c (c_parser_skip_to_end_of_block_or_statement): Move after
1475         c_parser_skip_to_pragma_eol.  Convert to switch statement.  Handle
1476         CPP_PRAGMA.
1477
1478 2006-05-01  Roger Sayle  <roger@eyesopen.com>
1479
1480         * c-typeck.c (parser_build_binary_op): Don't call the function
1481         unsigned_conversion_warning to spot operand/result type overflow.
1482         (build_binary_op): Instead, call convert_and_check instead of
1483         convert to report the problem when the operands are promoted.
1484         * c-common.c (unsigned_conversion_warning): Make static.
1485         * c-common.h (unsigned_conversion_warning): Delete prototype.
1486
1487 2006-05-01  Richard Guenther  <rguenther@suse.de>
1488
1489         PR tree-optimization/26726
1490         * tree-ssa-loop-ivopts.c (idx_find_step): Mark source of the
1491         problem ...
1492         (find_interesting_uses_address): ... we work around here
1493         by folding INDIRECT_REFs in the substituted base.
1494
1495 2006-05-01  Diego Novillo  <dnovillo@redhat.com>
1496
1497         * omp-low.c (dump_omp_region): Add newlines.
1498
1499 2006-04-30  Roger Sayle  <roger@eyesopen.com>
1500
1501         * common.opt (Woverflow): New command line option.
1502         * c-common.c (constant_expression_warning): Check warn_overflow.
1503         (overflow_waring): Pass OPT_Woverflow to warning.
1504         (unsigned_conversion_warning): Likewise.
1505         (convert_and_check): Likewise.
1506         * doc/invoke.texi: Document new command line option.
1507
1508 2006-04-30  David Edelsohn  <edelsohn@gnu.org>
1509
1510         * config/rs6000/rs6000.c (rs6000_override_options): Enable
1511         TARGET_NO_FP_IN_TOC for section anchors.
1512         (optimization_options): Enable section anchors for all
1513         non-"Objective" languages.
1514
1515 2006-04-28  Eric Christopher  <echristo@apple.com>
1516
1517         * config/darwin-c.c (darwin_ms_struct): Move this
1518         (darwin_set_default_type_attributes): and this...
1519         * config/darwin.c: ... here.
1520         * config/darwin.h (darwin_ms_struct): Declare.
1521
1522 2006-04-28  Andrew MacLeod  <amacleod@redhat.com>
1523
1524         * tree-ssa-dom.c (propagate_rhs_into_lhs): Fix assert clause.
1525
1526 2006-04-28  Roger Sayle  <roger@eyesopen.com>
1527
1528         PR c/25309
1529         * c-typeck.c (struct spelling): Make I an unsigned HOST_WIDE_INT.
1530         (push_array_bounds): Delete prototype.  Change BOUNDS argument to
1531         an unsigned HOST_WIDE_INT.
1532         (print_spelling): Use HOST_WIDE_INT_PRINT_UNSIGNED to output the
1533         array index.
1534         (really_start_incremental_init): No need to call convert because
1535         bitsize_zero_node is already of type bitsizetype.
1536         (push_init_level): Extract the value of constructor_index as an
1537         unsigned HOST_WIDE_INT quantity, using tree_low_cst.
1538         (process_init_element): Likewise.
1539
1540 2006-04-28  Joseph S. Myers  <joseph@codesourcery.com>
1541
1542         * gcc.c (process_command): Add program name to GCC_EXEC_PREFIX
1543         value before passing to make_relative_prefix.
1544
1545 2006-04-28  Alan Modra  <amodra@bigpond.net.au>
1546
1547         PR middle-end/27260
1548         * builtins.c (expand_builtin_memset): Expand val in original mode.
1549
1550 2006-04-27  Eric Christopher  <echristo@apple.com>
1551
1552         * target-def.h (TARGET_SET_DEFAULT_TYPE_ATTRIBUTES): Bracket
1553         with #ifndef/#endif.
1554         * config/darwin-c.c (darwin_ms_struct): New.
1555         (darwin_pragma_ms_struct): Ditto.
1556         (darwin_set_default_type_attributes): Ditto.
1557         * config/darwin-protos.h (darwin_pragma_ms_struct): Declare.
1558         * config/darwin.h (DARWIN_REGISTER_TARGET_PRAGMAS):
1559         Register ms_struct pragma.
1560         * config/i386/darwin.h (REGISTER_TARGET_PRAGMAS): Declare.
1561         (TARGET_SET_DEFAULT_TYPE_ATTRIBUTES): Ditto.
1562         * config/rs6000/rs6000.c (rs6000_set_default_type_attributes): Call
1563         darwin_set_default_type_attributes if TARGET_MACHO.
1564
1565 2006-04-27  Andrew MacLeod  <amacleod@redhat.com>
1566
1567         PR tree-optimization/26854
1568         * tree-vrp.c (remove_range_assertions): Use new Immuse iterator.
1569         * doc/tree-ssa.texi: Update immuse iterator documentation.
1570         * tree-ssa-math-opts.c (execute_cse_reciprocals_1): Use new iterator.
1571         * tree-ssa-dom.c (propagate_rhs_into_lhs): Use new iterator.
1572         * tree-flow-inline.h (end_safe_imm_use_traverse, end_safe_imm_use_p,
1573         first_safe_imm_use, next_safe_imm_use): Remove.
1574         (end_imm_use_stmt_p): New.  Check for end of immuse stmt traversal.
1575         (end_imm_use_stmt_traverse): New.  Terminate immuse stmt traversal.
1576         (move_use_after_head): New.  Helper function to sort immuses in a stmt.
1577         (link_use_stmts_after): New.  Link all immuses in a stmt consescutively.
1578         (first_imm_use_stmt): New.  Get first stmt in an immuse list.
1579         (next_imm_use_stmt): New.  Get next stmt in an immuse list.
1580         (first_imm_use_on_stmt): New.  Get first immuse on a stmt.
1581         (end_imm_use_on_stmt_p): New.  Check for end of immuses on a stmt.
1582         (next_imm_use_on_stmt): New.  Move to next immuse on a stmt.
1583         * tree-ssa-forwprop.c (forward_propagate_addr_expr): Use new iterator.
1584         * lambda-code.c (lambda_loopnest_to_gcc_loopnest): Use new iterator.
1585         (perfect_nestify): Use new iterator.
1586         * tree-vect-transform.c (vect_create_epilog_for_reduction): Use new
1587         iterator.
1588         * tree-flow.h (struct immediate_use_iterator_d): Add comments.
1589         (next_imm_name): New field in struct immediate_use_iterator_d.
1590         (FOR_EACH_IMM_USE_SAFE, BREAK_FROM_SAFE_IMM_USE): Remove.
1591         (FOR_EACH_IMM_USE_STMT, BREAK_FROM_IMM_USE_STMT,
1592         FOR_EACH_IMM_USE_ON_STMT): New immediate use iterator macros.
1593         * tree-cfg.c (replace_uses_by): Use new iterator.
1594         * tree-ssa-threadedge.c (lhs_of_dominating_assert): Use new iterator.
1595         * tree-ssa-operands.c (correct_use_link): Remove.
1596         (finalize_ssa_use_ops): No longer call correct_use_link.
1597
1598 2006-04-27  Stuart Hastings  <stuart@apple.com>
1599
1600         * config/rs6000/t-darwin (DARWIN_EXTRA_CRT_BUILD_CFLAGS): New.
1601         * config/t-darwin (crt3.o): Use it.
1602         * config/rs6000/rs6000.c (rs6000_initialize_trampoline): Remove
1603         'pmode', use Pmode instead of SImode for SYMBOL_REF.
1604         * config/rs6000/rs6000.md (call_indirect_nonlocal_sysv,
1605         call_nonlocal_sysv, call_value_indirect_nonlocal_sysv,
1606         call_value_nonlocal_sysv): Suffix with the "P" macro for 32/64
1607         support.
1608
1609 2006-04-27  Roger Sayle  <roger@eyesopen.com>
1610
1611         * expmed.c (store_fixed_bit_field): If we're not optimizing for
1612         size, force the intermediate into a new pseudo rather instead of
1613         performing both a bitwise AND and a bitwise IOR in memory.
1614
1615 2006-04-27  Richard Guenther  <rguenther@suse.de>
1616
1617         PR rtl-optimization/26685
1618         * params.def (PARAM_MAX_CSE_INSNS): Correct typo that named
1619         this one "max-flow-memory-locations".
1620
1621 2006-04-27  Richard Guenther  <rguenther@suse.de>
1622
1623         PR tree-optimization/25148
1624         * tree-vrp.c (compare_values): Remove code dealing with
1625         comparisons against type min/max value.  Honour overflow
1626         and negative constants in code dealing with comparisons
1627         of plus and minus expressions.
1628         (value_inside_range): Use fold_binary with LE_EXPR and
1629         GE_EXPR rather than compare_values.
1630
1631 2006-04-27  Dirk Mueller  <dmueller@suse.de>
1632
1633         * config/i386/xmmintrin.h (_mm_shuffle_pi16): Declare
1634         prototype for SSE.
1635
1636 2006-04-26  Kenneth Zadeck <zadeck@naturalbridge.com>
1637
1638         * basic-block.h (safe_insert_insn_on_edge): Removed.
1639         * cfgrtl.c (mark_killed_regs, safe_insert_insn_on_edge): Removed.
1640
1641 2006-04-26  David Edelsohn  <edelsohn@gnu.org>
1642             Paolo Bonzini  <bonzini@gnu.org>
1643
1644         PR middle-end/27282
1645         * combine.c (simplify_and_const_int_1): Use gen_int_mode.
1646         (simplify_and_const_int): Same.
1647
1648 2006-04-26  Aldy Hernandez  <aldyh@redhat.com>
1649
1650         * tree-ssa-dse.c (dse_optimize_stmt): Remove unused variable USE.
1651
1652 2006-04-26  Jakub Jelinek  <jakub@redhat.com>
1653
1654         PR c/26171
1655         * cgraph.c (cgraph_varpool_finalize_decl): Don't call
1656         cgraph_varpool_assemble_pending_decls if -fopenmp, unless
1657         cgraph_global_info_ready.
1658
1659         PR middle-end/26913
1660         * tree-cfg.c (find_outermost_region_in_block): Handle RESX_EXPR.
1661
1662         PR c/25996
1663         * c-parser.c (c_parser_omp_for_loop): Don't call c_finish_omp_for if
1664         either decl or init is error_mark_node.
1665
1666         PR middle-end/25989
1667         * tree-flow.h (struct omp_region): Add sched_kind.
1668         * omp-low.c (expand_parallel_call): Use region->inner->sched_kind
1669         instead of extracting omp for data.
1670         (expand_omp_for): Save extracted sched_kind.
1671
1672 2006-04-25  Roger Sayle  <roger@eyesopen.com>
1673
1674         * expmed.c (store_bit_field): Also check whether the bitsize is
1675         valid for the machine's "insv" instruction before moving the
1676         target into a pseudo for use with the insv.
1677         * config/i386/predicates.md (const8_operand): New predicate.
1678         * config/i386/i386.md (extv, extzv, insv): Use the new
1679         const8_operand predicate where appropriate.
1680
1681 2006-04-25  DJ Delorie  <dj@redhat.com>
1682
1683         * doc/install.texi (Specific): Clarify that this is not a list of
1684         supported hosts or targets.
1685
1686 2006-04-25  Richard Sandiford  <richard@codesourcery.com>
1687
1688         PR rtl-optimization/26725
1689         * cfgrtl.c (rtl_redirect_edge_and_branch_force): Set the source
1690         block's BB_DIRTY flag.
1691
1692 2006-04-25  Geoffrey Keating  <geoffk@apple.com>
1693
1694         * dwarf2out.c (size_of_locs): Don't fill dw_loc_addr if there
1695         are no branches.
1696
1697         * dwarf2asm.c (dw2_asm_output_data): Don't generate RTL just
1698         to print an integer.
1699
1700 2006-04-25  David Edelsohn  <edelsohn@gnu.org>
1701
1702         * varasm.c (align_variable): New function.
1703         (get_block_for_decl): Apply align_variable to DECL before
1704         calculating section information.
1705         (assemble_variable): Split out alignment computation.
1706
1707 2006-04-25  Andreas Krebbel  <krebbel1@de.ibm.com>
1708
1709         * expmed.c (store_bit_field): Handle paradoxical subregs on big endian
1710         machines.
1711
1712 2006-04-25  Bernd Schmidt  <bernd.schmidt@analog.com>
1713
1714         * genmodes.c (make_vector_mode): Allow making VECTOR_MODE_INT of a
1715         MODE_PARTIAL_INT mode.
1716         * config/bfin/bfin-modes.def: Add V2PDI and V2SI.
1717         * config/bfin/bfin.c (print_operand): Add macflag and mac/msu modifiers
1718         for CONST_INTs.
1719         (hard_regno_mode_ok): V2PDImode is ok for accumulators.
1720         * config/bfin/bfin.h (CLASS_MAX_NREGS, HARD_REGNO_NREGS): Handle
1721         V2PDImode.
1722         * config/bfin/predicates.md (const01_operand, vec_shift_operand):
1723         New predicates.
1724         * config/bfin/bfin.md (UNSPEC_MUL_WITH_FLAG, UNSPEC_MAC_WITH_FLAG):
1725         New constants.
1726         (MACFLAG_NONE, MACFLAG_T, MACFLAG_FU, MACFLAG_TFU, MACFLAG_IS,
1727         MACFLAG_IU, MACFLAG_W32, MACFLAG_M, MACFLAG_S2RND, MACFLAG_ISS2,
1728         MACFLAG_IH): Likewise.
1729         (movstricthi_1): Renamed from "*movstricthi".
1730         (load_accumulator, load_accumulator_pair, movsi_insv, insv,
1731         ssaddsi3, sssubsi3, ssnegsi2, signbitssi2, smaxhi3, sminhi3,
1732         abshi2, neghi2, ssneghi2, signbitshi2, movhi_low2high,
1733         movhi_high2high, movhi_low2low, movhi_high2low, movhiv2hi_low,
1734         movhiv2hi_high, composev2hi, movv2hi_hi, movv2hi_hi_low,
1735         movv2hi_hi_high, ssaddhi3, sssubhi3, ssaddv2hi3, sssubv2hi3,
1736         addsubv2hi3, subaddv2hi3, ssaddsubv2hi3, sssubaddv2hi3,
1737         sublohiv2hi3, subhilov2hi3, sssublohiv2hi3, sssubhilov2hi3,
1738         addlohiv2hi3, addhilov2hi3, ssaddlohiv2hi3, ssaddhilov2hi3,
1739         mulhisi_ll, mulhisi_lh, mulhisi_hl, mulhisi_hh, ssnegv2hi2,
1740         ssashiftv2hi3, ssashifthi3, lshiftv2hi3, lshifthi3, packv2hi,
1741         flag_mulhi, flag_mulhisi_parts, flag_machi, flag_machi_acconly,
1742         flag_macinithi, flag_macinit1hi, flag_mulv2hi, flag_mulv2hi_parts,
1743         flag_macv2hi_parts, flag_macv2hi_parts_acconly,
1744         flag_macinitv2hi_parts, flag_macinit1v2hi_parts): New patterns.
1745
1746         * doc/rtl.texi (ss_ashift): Improve wording.
1747
1748 2006-04-24  Geoffrey Keating  <geoffk@apple.com>
1749
1750         * dwarf2out.c (verify_marks_clear): New.
1751         (prune_unused_types): Call verify_marks_clear initially, not
1752         prune_unmark_dies.
1753
1754 2006-04-24  Bernd Schmidt  <bernd.schmidt@analog.com>
1755
1756         * rtl.def (SS_ASHIFT, SS_NEG): New codes.
1757         * doc/rtl.texi: Document them.
1758         * simplify-rtx.c (simplify_unary_operation,
1759         simplify_binary_operation_1): Don't abort when we see them.
1760
1761 2006-04-24  Mark Mitchell  <mark@codesourcery.com>
1762
1763         Revert:
1764         2006-04-23  Mark Mitchell  <mark@codesourcery.com>
1765         * configure.ac: Completely disregard languages that are not
1766         enabled.
1767         * configure: Regenerated.
1768
1769 2006-04-24  Andrew Pinski  <pinskia@gcc.gnu.org>
1770         Richard Guenther  <rguenther@suse.de>
1771
1772         PR tree-optimization/27236
1773         * tree-inline.c (copy_body_r): Make sure to copy
1774         TREE_THIS_VOLATILE flag.
1775
1776 2006-04-24  Richard Guenther  <rguenther@suse.de>
1777
1778         PR middle-end/26869
1779         * tree-complex.c (update_parameter_components): Don't handle
1780         unused parameters which have no default def.
1781
1782 2006-04-24  Andrew Pinski  <pinskia@gcc.gnu.org>
1783         Richard Guenther  <rguenther@suse.de>
1784
1785         PR tree-optimization/27218
1786         * tree-inline.c (expand_call_inline): Strip useless type
1787         conversions for the return slot address.
1788
1789 2006-04-24  Richard Guenther  <rguenther@suse.de>
1790
1791         * cfgloop.h (struct loops): Remove unused field array.  Reorder
1792         state after num.
1793         (LOOP_PREFETCH): Remove.
1794
1795 2006-04-24  Richard Guenther  <rguenther@suse.de>
1796
1797         PR tree-optimization/22525
1798         * value-prof.c (tree_mod_pow2): Remove unnecessary temporary
1799         variable, adjust types of generated expressions.
1800
1801 2006-04-23  H.J. Lu  <hongjiu.lu@intel.com>
1802
1803         * Makefile.in (c-convert.o): Add dependency on $(TARGET_H)
1804         (tree-vect-patterns.o): Likewise.
1805         (jump.o): Likewise.
1806         (cselib.o): Likewise.
1807         (loop-doloop.o): Likewise.
1808         (regclass.o): Likewise.
1809         (reload1.o): Likewise.
1810         (explow.o): Replace target.h with $(TARGET_H).
1811         (ipa-prop.o): Likewise.
1812         (ipa-cp.o): Likewise.
1813         (ipa-inline.o): Likewise.
1814         (reorg.o): Likewise.
1815         (reg-stack.o): Likewise.
1816
1817 2006-04-23  Eric Botcazou  <ebotcazou@adacore.com>
1818
1819         * tree-tailcall.c (pass_tail_recursion): Use gate_tail_calls too.
1820
1821 2006-04-23  Mark Mitchell  <mark@codesourcery.com>
1822
1823         * print-tree.c (print_node): Print DECL_BIT_FIELD_TYPE.
1824
1825         * configure.ac: Completely disregard languages that are not
1826         enabled.
1827         * configure: Regenerated.
1828
1829         PR c++/26534
1830         * c-common.h (c_build_bitfield_integer_type): Declare.
1831         * c-decl.c (c_build_bitfield_integer_type): Move to ...
1832         * c-common.c (c_build_bitfield_integer_type): ... here.
1833
1834 2006-04-23  Roger Sayle  <roger@eyesopen.com>
1835
1836         PR target/21283
1837         * config/fr30/fr30.md (define_split): Avoid calling gen_lowpart on
1838         a SImode SUBREG of a floating point register after no_new_pseudos.
1839
1840 2006-04-23  Roger Sayle  <roger@eyesopen.com>
1841
1842         * config/fr30/fr30.md (addsi_small_int): Use REGNO_PTR_FRAME_P to
1843         identify potentially eliminable registers to additionally catch
1844         VIRTUAL_INCOMING_ARGS_REGNUM.
1845         (addsi3): Update the conditions on when to use addsi_small_int.
1846
1847 2006-04-23  Roger Sayle  <roger@eyesopen.com>
1848
1849         PR target/16641
1850         * config/fr30/fr30.h (GO_IF_LEGITIMATE_ADDRESS): Check REGNO for
1851         STACK_POINTER_RTX and FRAME_POINTER_RTX instead of comparing the
1852         rtx to stack_pointer_rtx or frame_pointer_rtx directly.
1853
1854 2006-04-23  Eric Botcazou  <ebotcazou@adacore.com>
1855
1856         * fold-const.c (range_predecessor): Use operand_equal_p
1857         as the predicate for equality.
1858         (range_successor): Likewise.
1859
1860 2006-04-22  Kazu Hirata  <kazu@codesourcery.com>
1861
1862         Revert:
1863         * config/soft-fp/op-common.h: Fix a typo.
1864
1865 2006-04-22  Frank Ch. Eigler  <fche@redhat.com>
1866
1867         PR libmudflap/26864
1868         * common.opt (flag_mudflap_threads): Overload flag_mudflap.
1869         * tree-mudflap.c (flag_mudflap_threads): Derive from flag_mudflap.
1870
1871 2006-04-22  Kazu Hirata  <kazu@codesourcery.com>
1872
1873         * config/soft-fp/op-common.h, double-int.h, tree-ssa-dom.c:
1874         Fix comment typos.
1875         * doc/tm.texi: Fix a typo.
1876
1877 2006-04-21  Geoffrey Keating  <geoffk@apple.com>
1878
1879         * dwarf2out.c (struct die_struct): Document that die_sib makes
1880         a circular linked list.
1881         (FOR_EACH_CHILD): New.
1882         (reverse_die_lists): Delete.
1883         (reverse_all_dies): Delete.
1884         (add_dwarf_attr): Correct documentation.
1885         (remove_child_with_prev): New.
1886         (remove_child_TAG): Update for change to die_struct, use
1887         remove_child_with_prev.
1888         (add_child_die): Update for change to die_struct.
1889         (splice_child_die): Use remove_child_with_prev and add_child_die.
1890         (print_die): Use FOR_EACH_CHILD.
1891         (die_checksum): Likewise.
1892         (assign_symbol_names): Likewise.
1893         (output_location_lists): Likewise.
1894         (build_abbrev_table): Likewise.
1895         (calc_die_sizes): Likewise.
1896         (mark_dies): Likewise.
1897         (unmark_dies): Likewise.
1898         (unmark_all_dies): Likewise.
1899         (output_die): Likewise.
1900         (prune_unused_types_mark): Likewise.
1901         (prune_unused_types_walk): Likewise.
1902         (same_die_p): Update for change to die_struct.
1903         (break_out_includes): Likewise.
1904         (prune_unused_types_prune): Likewise.
1905         (add_sibling_attributes): Use FOR_EACH_CHILD, simplify logic.
1906         (prune_unmark_dies): Use FOR_EACH_CHILD, don't clear die_mark if
1907         it's already clear.
1908         (dwarf2out_finish): Don't call reverse_all_dies.
1909
1910 2006-04-21  Eric Christopher  <echristo@apple.com>
1911
1912         * df-core.c, tree-outof-ssa.c, config/i386/i386.c: Fix typos
1913         in comments and function names.
1914
1915 2006-04-21  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
1916
1917         PR c/25875
1918         * c-typeck.c (digest_init): Robustify.
1919
1920         * c-typeck.c (pop_init_level): Simplify.
1921
1922 2006-04-21  Steve Ellcey  <sje@cup.hp.com>
1923
1924         * config/pa/t-pa64: Add dependencies on $(GCC_PASSES).
1925
1926 2006-04-21  Paul Brook  <paul@codesourcery.com>
1927
1928         * config/arm/arm.c (arm_override_options): Error on iWMMXt and
1929         hardware floating point.
1930
1931 2006-04-21  David Edelsohn  <edelsohn@gnu.org>
1932
1933         * config/rs6000/rs6000.h (REG_CLASS_CONTENTS): Add sfp to
1934         NON_FLOAT_REGS.
1935
1936 2006-04-21  Nick Clifton  <nickc@redhat.com>
1937
1938         * config/sh/t-elf (EXTRA_MULTILIB_PARTS): Include
1939         OPT_EXTRA_PARTS.
1940
1941 2006-04-21  Alan Modra  <amodra@bigpond.net.au>
1942
1943         PR target/27230
1944         * config/rs6000/rs6000.c (rs6000_output_function_epilogue): Use
1945         C++ lang type in traceback table for Objective-C++.
1946
1947         * config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Update comment.
1948
1949 2006-04-20  H.J. Lu  <hongjiu.lu@intel.com>
1950
1951         * config/i386/i386.c (asm_preferred_eh_data_format): Reformat.
1952
1953 2006-04-20  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
1954
1955         PR mudflap/26789
1956         * tree-mudflap.c (mudflap_finish_file): Skip function when there
1957         were errors.  Remove check for erroneous objects.
1958
1959 2006-04-20  Jeff Law  <law@redhat.com>
1960
1961         PR tree-optimization/26854
1962         * tree-ssa-dse.c (dse_optimize_stmt): Avoid num_imm_uses when
1963         checking for zero or one use.
1964         * tree-ssa-dom.c (propagate_rhs_into_lhs): Similarly.
1965         * tree-cfgcleanup.c (merge_phi_nodes): Similarly.
1966         * tree-ssa-reassoc.c (negate_value): Similarly.
1967         (reassociate_bb): Similarly.
1968
1969 2006-04-20  Jakub Jelinek  <jakub@redhat.com>
1970
1971         * c-pretty-print.c (pp_c_direct_abstract_declarator): Print
1972         TYPE_MAX_VALUE (TYPE_DOMAIN (t)) + 1 for ARRAY_TYPE rather
1973         than plain TYPE_MAX_VALUE (TYPE_DOMAIN (t)).
1974
1975 2006-04-20  Alan Modra  <amodra@bigpond.net.au>
1976
1977         * config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Consume all
1978         fp regs if the last fp arg doesn't fit in regs.
1979
1980 2006-04-20  Kaz Kojima  <kkojima@gcc.gnu.org>
1981
1982         PR target/27182
1983         * config/sh/sh.md (movsicc_true+3): Tweak condition for the case
1984         that the last insn has the REG_INC note.
1985
1986 2006-04-19  Carlos O'Donell  <carlos@codesourcery.com>
1987             Nathan Sidwell  <nathan@codesourcery.com>
1988
1989         PR c/26774
1990         * stor-layout.c (update_alignment_for_field): Do not align
1991         ERROR_MARK nodes.
1992         (place_union_field): Place union field at the start of the union.
1993         (place_field): Move ERROR_MARK check later, and use the current
1994         allocation position to maintain monotonicity.
1995
1996 2006-04-19  Zdenek Dvorak <dvorakz@suse.cz>
1997
1998         * dominance.c: Include timevar.h.
1999         (calculate_dominance_info): Use TV_DOMINANCE.
2000         * timevar.def (TV_DOMINANCE): New timevar.
2001         * Makefile.in (dominance.o): Add TIMEVAR_H dependency.
2002
2003 2006-04-19  Andreas Krebbel  <krebbel1@de.ibm.com>
2004
2005         PR rtl-optimization/14261
2006         * ifcvt.c (noce_emit_move_insn): Call store_bit_field if the resulting
2007         move would be an INSV insn.
2008         (noce_process_if_block): Don't optimize if the destination is a
2009         ZERO_EXTRACT which can't be handled by noce_emit_move_insn.
2010
2011 2006-04-19  Andreas Krebbel  <krebbel1@de.ibm.com>
2012
2013         * config/s390/s390.md: Add comments with the instructions emitted
2014         by an insn pattern if macros are used.
2015
2016 2006-04-19  Alan Modra  <amodra@bigpond.net.au>
2017
2018         PR rtl-optimization/26026
2019         * fold-const.c (fold_binary): Optimize div and mod where the divisor
2020         is a known power of two shifted left a variable amount.
2021
2022 2006-04-18  Geoffrey Keating  <geoffk@apple.com>
2023
2024         * dwarf2out.c (prune_unused_types_update_strings): Don't add strings
2025         to hash table twice when the debug_str section has SECTION_MERGE.
2026
2027 2006-04-18  Joseph S. Myers  <joseph@codesourcery.com>
2028
2029         * config/soft-fp: New directory.  From glibc.
2030         * config/soft-fp/t-softfp: New.
2031         * config/soft-fp/README: New.
2032         * mklibgcc.in: Handle LIB2FUNCS_EXCLUDE.
2033         * Makefile.in (LIB2FUNCS_EXCLUDE, SFP_MACHINE): New.
2034         (libgcc.mk): Pass LIB2FUNCS_EXCLUDE.
2035         (LIBGCC_DEPS): Add $(SFP_MACHINE).
2036         * config.gcc: Use rs6000/t-fprules-fpbit or
2037         rs6000/t-fprules-softfp and soft-fp/t-softfp together with
2038         rs6000/t-fprules.
2039         * config/rs6000/sfp-machine.h: New.  Based on glibc.
2040         * config/rs6000/t-fprules-fpbit, config/rs6000/t-fprules-softfp:
2041         New.
2042         * config/rs6000/t-fprules: Remove fp-bit rules.
2043         * config/rs6000/t-ppccomm (LIB2FUNCS_EXTRA): Use +=.
2044         * config/rs6000/t-linux64: Likewise.  Remove duplicates from
2045         LIB2FUNCS_EXTRA.  Remove fp-bit rules.
2046         (softfp_wrap_start, softfp_wrap_end): New.
2047
2048 2006-04-18  DJ Delorie  <dj@redhat.com>
2049
2050         * config/m32c/m32c.h (PTRDIFF_TYPE): Define.
2051
2052 2006-04-18  Devang Patel  <dpatel@apple.com>
2053
2054         * doc/invoke.texi (-Wuninitialized): Clarify -O connection.
2055
2056 2006-04-18  Nick Clifton  <nickc@redhat.com>
2057
2058         * config/sh/t-symbian: Add rule to build sh-c.o
2059         * config/sh/symbian.c (sh_symbian_mark_dllexport): Replace use
2060         of DECL_NON_ADDR_CONST_P with DECL_DLLIMPORT_P.
2061         (sh_symbian_encode_section_info): Likewise.
2062
2063 2006-04-18  Andreas Krebbel  <krebbel1@de.ibm.com>
2064
2065         * builtins.c (expand_builtin_strcmp): Cover label definition of
2066         do_libcall with HAVE_cmpstrnsi.
2067
2068 2006-04-18  Kazu Hirata  <kazu@codesourcery.com>
2069
2070         * function.c (temp_slots_at_level, max_slot_level): Use VEC
2071         instead of VARRAY.
2072         * function.h (temp_slot_p): New.
2073         (function): Change the type of x_used_temp_slots to
2074         VEC(temp_slot_p,gc) *.
2075
2076 2006-04-18  Nick Clifton  <nickc@redhat.com>
2077
2078         * config/mmix/mmix.h (OPTIMIZATION_OPTIONS): Remove reference to
2079         flag_strength_reduce.
2080
2081         * doc/tm.texi (TARGET_SECTION_TYPE_FLAGS): Fix typo.
2082
2083 2006-04-18  Paolo Bonzini  <bonzini@gnu.org>
2084
2085         PR target/27117
2086
2087         Partial revert of revision 112637
2088         2006-04-03  Paolo Bonzini  <bonzini@gnu.org>
2089                     Dale Johannesen  <dalej@apple.com>
2090
2091         PR target/19653
2092         * regclass.c (struct reg_pref): Update documentation.
2093         (regclass): Set prefclass to NO_REGS if memory is the best option.
2094         (record_reg_classes): Cope with a prefclass set to NO_REGS.
2095
2096 2006-04-18  Paolo Bonzini  <bonzini@gnu.org>
2097
2098         PR tree-optimization/26821
2099         * tree-ssa-math-opts.c (get_constant_one): New.
2100         (insert_reciprocals): Use it.
2101
2102 2006-04-17  Geoffrey Keating  <geoffk@apple.com>
2103
2104         * dwarf2out.c (free_AT): Delete.
2105         (remove_AT): Update string ref counts.
2106         (remove_child_TAG): Don't call free_die.
2107         (free_die): Delete.
2108         (break_out_includes): Don't call free_die on DW_TAG_GNU_BINCL
2109         or DW_TAG_GNU_EINCL.
2110         (prune_unused_types_walk_attribs): Reset string refcounts.
2111         (prune_unused_types_update_strings): New.
2112         (prune_unused_types_prune): Don't make unnecessary stores.  Don't
2113         call free_die.  Do call prune_unused_types_update_strings.
2114         (prune_unused_types): Empty debug_str_hash.
2115
2116 2006-04-17  Roger Sayle  <roger@eyesopen.com>
2117
2118         * expr.c (expand_assignment): Optimize away no-op moves where the
2119         source and destination are equal and have no side-effects.
2120
2121 2006-04-17  Richard Guenther  <rguenther@suse.de>
2122
2123         PR target/26826
2124         * reload.c (push_reload): Guard calls to get_secondary_mem
2125         for memory subregs.
2126
2127 2006-04-16  Kazu Hirata  <kazu@codesourcery.com>
2128
2129         * alias.c (reg_base_value, old_reg_base_value): Change the
2130         type to VEC(rtx,gc) *.
2131         (REG_BASE_VALUE, find_base_value, record_set,
2132         init_alias_analysis): Use VEC instead of VARRAY.
2133
2134         * alias.c (alias_sets): Change the type to
2135         VEC(alias_set_entry,gc) *.
2136         (get_alias_set_entry, new_alias_set, record_alias_subset): Use
2137         VEC instead of VARRAY.
2138         (last_alias_set): Remove.
2139
2140         * cgraph.h (cgraph_edge_p): New.
2141         Update the prototype of cgraph_function_versioning.
2142         * cgraphunit.c (cgraph_copy_node_for_versioning,
2143         cgraph_function_versioning): Use VEC instead of VARRAY.
2144         * ipa-cp.c (ipcp_insert_stage): Likewise.
2145
2146 2006-04-16  Roger Sayle  <roger@eyesopen.com>
2147
2148         PR target/26961
2149         * fold-const.c (fold_ternary): When converting "A ? B : C" into either
2150         "A op B" or "A op C", we may need to convert A to the type of B and C.
2151
2152 2006-04-16  Adam Nemet  <anemet@caviumnetworks.com>
2153
2154         * target.h (struct gcc_target): Add mode_rep_extended.
2155         * rtlanal.c (num_sign_bit_copies_in_rep): New global.
2156         (init_num_sign_bit_copies_in_rep): Initialize it using
2157         mode_rep_extended.
2158         (truncate_to_mode): Use it.
2159         (init_rtlanal): Call init_num_sign_bit_copies_in_rep.
2160         * targhooks.h (default_mode_rep_extended): Declare it.
2161         * targhooks.c (default_mode_rep_extended): Define it.
2162         * target-def.h (TARGET_MODE_REP_EXTENDED): New macro.  Default to
2163         default_mode_rep_extended.
2164         (TARGET_INITIALIZER): Include it.
2165         * doc/tm.texi (Misc): Document it.
2166         * config/mips/mips.c (TARGET_TRUNCATED_TO_MODE): Override it.
2167         (mips_truncated_to_mode): New function.
2168
2169 2006-04-16  Roger Sayle  <roger@eyesopen.com>
2170
2171         PR middle-end/25474
2172         * expr.c (compress_float_constant): Copy the narrow constant into
2173         a new pseudo before extending it to its final width.
2174
2175 2006-04-16  Roger Sayle  <roger@eyesopen.com>
2176             Andrew Pinski  <pinskia@gcc.gnu.org>
2177             Dale Johannesen  <dalej@apple.com>
2178
2179         PR target/24076
2180         * config/i386/i386.c (ix86_expand_vector_init_duplicate): Add
2181         special case code to implement V8HImode and V16QImode with SSE2.
2182
2183 2006-04-15  Roger Sayle  <roger@eyesopen.com>
2184
2185         * config/i386/i386.c (ix86_va_start): Ensure all integer constant
2186         trees are constructed with a suitable tree type.
2187
2188 2006-04-15  Roger Sayle  <roger@eyesopen.com>
2189
2190         * tree.c (integer_zerop): Ignore TREE_CONSTANT_OVERFLOW.
2191         (integer_onep): Likewise.
2192         (integer_all_onesp): Likewise.
2193         (integer_pow2p): Likewise.
2194         (integer_nonzerop): Likewise.
2195         (real_zerop): Likewise.
2196         (real_onep): Likewise.
2197         (real_twop): Likewise.
2198         (real_minus_onep): Likewise.
2199         (int_size_in_bytes): Likewise.
2200         (host_integerp): Likewise.
2201
2202 2006-04-15  Kazu Hirata  <kazu@codesourcery.com>
2203
2204         * cfgcleanup.c, config/dfp-bit.c, expr.c, fold-const.c,
2205         jump.c, mips-tfile.c, omp-low.c, sched-int.h,
2206         tree-ssa-loop-prefetch.c, tree-vrp.c: Fix comment typos.
2207
2208         * tree-ssa-structalias.h (alias_info): Remove num_references.
2209
2210 2006-04-15  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2211
2212         * pa.md (output_bb patterns): Shorten long branch alternatives by 4.
2213         (output_bvb patterns): Likewise.
2214         * pa.c (output_bb): Use 'bb' insn for long branch case.
2215         (output_bvb): Likewise use '{bvb|bb}' for long branch case.
2216         (output_dbra): Use '{comb|cmpb}' for long branch case for alternative
2217         1.  Correct length operand for alternatives 1 and 2.
2218         (output_movb): Use '{comb|cmpb}' for long branch case for alternatives
2219         1, 2 and 3.  Correct length operand for alternatives 1, 2 and 3.
2220
2221 2006-04-14  Roger Sayle  <roger@eyesopen.com>
2222
2223         * tree-cfg.c (make_edges, make_omp_sections_edges, move_stmt_r,
2224         is_ctrl_altering_stmt): Reinstate RTH's changes from r112935 that
2225         were accidentally reverted by r112959.
2226
2227 2006-04-15  Jakub Jelinek  <jakub@redhat.com>
2228
2229         PR middle-end/26823
2230         * except.h (eh_region_outermost): New prototype.
2231         * except.c (eh_region_outermost): New function.
2232         * tree-cfg.c (find_outermost_region_in_block): Use it.
2233
2234 2006-04-14  Kazu Hirata  <kazu@codesourcery.com>
2235
2236         * local-alloc.c (rest_of_handle_local_alloc): Use VEC instead
2237         of VARRAY.
2238         * reload1.c (reg_equiv_memory_loc_varray): Rename to
2239         reg_equiv_memory_loc_vec.  Change the type to VEC(rtx,gc) *.
2240         (init_reload, reload): Use VEC instead of VARRAY.
2241         * reload.h: Update the prototype for
2242         reg_equiv_memory_loc_varray.
2243
2244 2006-04-14  Alexey Starovoytov  <alexey.starovoytov@sun.com>
2245             Eric Botcazou  <ebotcazou@libertysurf.fr>
2246
2247         * config/sparc/sparc.c (emit_and_preserve): Allocate space for the
2248         register save area.
2249
2250 2005-04-13  Uros Bizjak  <uros@kss-loka.si>
2251
2252         PR middle-end/27134
2253         * builtins.c (expand_builtin_int_roundingfn): Use expand_normal()
2254         to expand fallback builtin function call.
2255
2256 2006-04-14  Alan Modra  <amodra@bigpond.net.au>
2257
2258         PR middle-end/27095
2259         * builtins.c: (expand_builtin_memset): Stabilize args before expansion
2260         and emit libcall here in case the builtin fails.
2261         (expand_builtin_strcmp): Always emit the libcall here on failure.
2262
2263 2006-04-14  Kazu Hirata  <kazu@codesourcery.com>
2264
2265         * basic-block.h (REG_BASIC_BLOCK): Use VEC instead of VARRAY.
2266         * flow.c (reg_n_info): Change the type to
2267         VEC(reg_info_p,heap) *.
2268         * regclass.c (allocate_reg_info, free_reg_info): Use VEC
2269         instead of VARRAY.
2270         * regs.h (reg_info_p): New.
2271         (REG_N_REFS, REG_FREQ, REG_N_SETS, REG_N_DEATHS,
2272         REG_N_CALLS_CROSSED, REG_N_THROWING_CALLS_CROSSED,
2273         REG_LIVE_LENGTH, REGNO_FIRST_UID, REGNO_LAST_UID): Use VEC
2274         instead of VARRAY.
2275
2276 2006-04-13  Eric Botcazou  <ebotcazou@adacore.com>
2277
2278         * params.def (PARAM_MAX_SCHED_READY_INSNS): New parameter,
2279         defaulting to 100.
2280         * params.h (MAX_SCHED_READY_INSNS): New macro.
2281         * haifa-sched.c: (queue_to_ready): Re-queue insns for the next cycle
2282         past MAX_SCHED_READY_INSNS during the first scheduling pass.
2283         (schedule_block): Delay insns past MAX_SCHED_READY_INSNS in
2284         the ready list for 1 cycle during the first scheduling pass.
2285         * doc/invoke.texi (--param): New parameter max-sched-ready-insns.
2286
2287 2006-04-13  Richard Henderson  <rth@redhat.com>
2288
2289         PR libgomp/26651
2290         * gimple-low.c (lower_omp_directive): Remove dead code.
2291         (lower_stmt): Do nothing except for openmp, except for OMP_PARALLEL.
2292         * gimplify.c (gimplify_expr): Update for OMP_RETURN, OMP_CONTINUE.
2293         * omp-low.c (struct omp_region): Move to tree-flow.h.
2294         (root_omp_region): Export.
2295         (omp_regions, lookup_omp_region): Remove.
2296         (determine_parallel_type): Update for struct omp_region changes.
2297         (dump_omp_region): Dump regions with block numbers.
2298         (new_omp_region): Take type and block instead of stmt; malloc
2299         instead of ggc.
2300         (free_omp_region_1, free_omp_regions): New.
2301         (expand_parallel_call): Take entry_stmt as argument; update for
2302         changes to omp_region.
2303         (remove_exit_barrier): Rewrite to update OMP_RETURN_NOWAIT.
2304         (remove_exit_barriers): New.
2305         (expand_omp_parallel): Update for struct omp_region changes.
2306         (expand_omp_synch): Likewise.
2307         (expand_omp): Likewise.
2308         (expand_omp_for_static_nochunk): Likewise; update for OMP_CONTINUE.
2309         (expand_omp_for_static_chunk): Likewise.
2310         (expand_omp_for): Likewise.
2311         (expand_omp_for_generic): Likewise; emit the proper GOMP_loop_end call.
2312         (expand_omp_sections): Similarly, with GOMP_sections_end.
2313         (expand_omp_single): New.
2314         (build_omp_regions_1): Update for OMP_CONTINUE.
2315         (execute_expand_omp): Call remove_exit_barriers, free_omp_regions.
2316         (lower_omp_sections): Expand with OMP_CONTINUE, do not collect
2317         OMP_SECTIONS_SECTIONS.
2318         (lower_omp_single_simple): Don't emit barrier here.
2319         (lower_omp_single_copy): Likewise.
2320         (lower_omp_single): Fix bindings, and lower to straightline now.
2321         (lower_omp_master, lower_omp_ordered): Likewise.
2322         (lower_omp_critical): Likewise.
2323         (lower_omp_for): Likewise.  Emit OMP_CONTINUE.
2324         * tree-cfg.c (make_edges): Collect an omp_region tree, use it for
2325         omp edges, free it afterward.
2326         (make_omp_sections_edges): Remove.
2327         (is_ctrl_altering_stmt): Don't bother checking flag_openmp.
2328         (move_stmt_r): Handle OMP_CONTINUE.
2329         * tree-flow.h (struct omp_region): Move from omp-low.c.  Switch
2330         statement pointers to basic blocks.  Add type member.
2331         (root_omp_region, new_omp_region, free_omp_regions): Declare.
2332         * tree-gimple.c (is_gimple_stmt): Handle OMP_RETURN, OMP_CONTINUE.
2333         * tree-inline.c (estimate_num_insns_1): Likewise.
2334         * tree-pretty-print.c (dump_generic_node): Likewise.
2335         * tree-ssa-operands.c (get_expr_operands): Likewise.
2336         * tree.def (OMP_SECTIONS): Remove OMP_SECTIONS_SECTIONS operand.
2337         (OMP_RETURN): Rename from OMP_RETURN_EXPR.
2338         (OMP_CONTINUE): New.
2339         * tree.h (OMP_DIRECTIVE_P): Add OMP_CONTINUE.
2340         (OMP_SECTIONS_SECTIONS): Remove.
2341         (OMP_SECTION_LAST): New.
2342         (OMP_RETURN_NOWAIT): New.
2343
2344 2006-04-13  Roger Sayle  <roger@eyesopen.com>
2345
2346         * fold-const.c (native_encode_vector, native_interpret_real):
2347         Correct obvious mistakes in the previous check-in.
2348
2349 2006-04-13  Roger Sayle  <roger@eyesopen.com>
2350
2351         * fold-const.c (native_encode_expr): New function to encode
2352         the target representation of an INTEGER_CST, REAL_CST, COMPLEX_CST
2353         or VECTOR_CST into a specified buffer.
2354         (native_encode_int): New function.
2355         (native_encode_real): New function.
2356         (native_encode_complex): New function.
2357         (native_encode_vector): New function.
2358         (native_interpret_expr): Inverse of native_encode_expr to convert
2359         a target representation into an INTEGER_CST, REAL_CST etc...
2360         (native_interpret_int): New function.
2361         (native_interpret_real): New function.
2362         (native_interpret_complex): New function.
2363         (native_interpret_vector): New function.
2364         (fold_view_convert_expr): New function to constant fold/evaluate
2365         a VIEW_CONVERT_EXPR of a suitable constant expression.
2366         (fold_unary) <VIEW_CONVERT_EXPR>: Call fold_view_convert_expr.
2367         Change call of build1 to fold_build1 when constructing a
2368         VIEW_CONVERT_EXPR.
2369
2370 2006-04-13  Paolo Bonzini  <bonzini@gnu.org>
2371             Ulrich Weigand  <uweigand@de.ibm.com>
2372
2373         PR target/27006
2374         * config/rs6000/rs6000.h (EASY_VECTOR_15_ADD_SELF): Require n
2375         to be even.
2376
2377 2006-04-13  Alan Modra  <amodra@bigpond.net.au>
2378
2379         PR target/26459
2380         * config/rs6000/rs6000.c (rs6000_legitimize_reload_address): Don't
2381         optimize to lo_sum for DFmode if !TARGET_FPRS.
2382
2383 2006-04-12  Kazu Hirata  <kazu@codesourcery.com>
2384
2385         * tree-ssa-alias.c (set_initial_properties, init_alias_info,
2386         delete_alias_info, compute_flow_sensitive_aliasing,
2387         group_aliases): Use VEC instead of VARRAY.
2388         * tree-ssa-structalias.c (update_alias_info): Likewise.
2389         * tree-ssa-structalias.h (alias_info): Change the type of
2390         processed_ptrs to VEC(tree,heap) *.
2391
2392 2006-04-12  J"orn Rennecke <joern.rennecke@st.com>
2393
2394         PR target/27060
2395         * config/sh/lib1funcs.h: New file, broken out of:
2396         * config/sh/lib1funcs.asm.
2397         * config/sh/lib1funcs.h (DR00, DR01, DR20, DR21, DR40, DR41):
2398         New macros.
2399         * config/sh/lib1funcs.asm (udivsi3_i4): Use them.
2400         * config/sh/lib1funcs-Os-4-200.asm: New file.
2401         * config/sh/embed-elf.h (LIBGCC_SPEC): Use -lgcc-Os-4-200.
2402         * config/sh/t-sh (OPT_EXTRA_PARTS): New variable.
2403         (EXTRA_MULTILIB_PARTS): Include it.
2404         ($(T)sdivsi3_i4i-Os-4-200.o): New rule.
2405         ($(T)udivsi3_i4i-Os-4-200.o, $(T)libgcc-Os-4-200.a): Likewise.
2406         * config/sh/t-superh (EXTRA_MULTILIB_PARTS): Include OPT_EXTRA_PARTS.
2407         * config/sh/sh.h (OVERRIDE_OPTIONS): Recognize -mdiv=call-table for
2408         TARGET_SH2.
2409
2410 2006-04-12  Kazu Hirata  <kazu@codesourcery.com>
2411
2412         * Makefile.in (TREE_SSA_LIVE_H): Add vecprim.h.
2413         * tree-ssa-live.c (tpa_init, tpa_remove_partition, tpa_delete,
2414         tpa_compact, root_var_init, type_var_init): Use VEC instead of
2415         VARRAY.
2416         * tree-ssa-live.h: Include vecprim.h.
2417         (tree_partition_associator_d): Change the type of
2418         first_partition to VEC(int,heap) *.
2419         (tpa_first_partition): Use VEC instead of VARRAY.
2420
2421         * Makefile.in (GTFILES): Move functions.h after tree.h.
2422         * function.c (reset_block_changes, record_block_change,
2423         check_block_change, free_block_changes): Use VEC instead of
2424         VARRAY.
2425         * function.h (function): Change the type of
2426         ib_boundaries_block to VEC(tree,gc) *.
2427         * tree-inline.c (copy_cfg_body): Initialize
2428         ib_boundaries_block to NULL instead of (varray_type) 0.
2429
2430 2006-04-12  Roger Sayle  <roger@eyesopen.com>
2431
2432         * expr.c (emit_group_store): Correct operand order in call to
2433         subreg_lowpart_offset.  Always create paradoxical SUBREGs with
2434         a SUBREG_BYTE of zero.
2435
2436 2006-04-12  Richard Guenther  <rguenther@suse.de>
2437
2438         * profile.c (compute_branch_probabilities): Remove code
2439         encapsulated in !ir_type (), which are remanents of the
2440         removed RTL profiling code.
2441         * rtl-profile.c: Remove.
2442
2443 2006-04-12  Alan Modra  <amodra@bigpond.net.au>
2444
2445         * config/rs6000/rs6000.c (rs6000_mixed_function_arg): Update
2446         magic NULL_RTX comment.
2447         (function_arg): Store entire fp arg to mem if any part should go
2448         on stack.
2449         (rs6000_arg_partial_bytes): Adjust for above change.
2450
2451 2006-04-11  Roger Sayle  <roger@eyesopen.com>
2452
2453         * dwarf2out.c (output_call_frame_info): Create debug_frame_section
2454         if it hasn't been initialized by dwarf2out_init.
2455
2456 2006-04-11  John David Anglin  <dava.anglin@nrc-cnrc.gc.ca>
2457
2458         * pa.md (MAX_12BIT_OFFSET, MAX_17BIT_OFFSET): Define and use new
2459         symbolic constants in branch patterns.
2460
2461 2006-04-11  Roger Sayle  <roger@eyesopen.com>
2462
2463         * caller-save.c: #include "addresses.h" after #include "tm_p.h".
2464
2465 2006-04-11  Richard Sandiford  <richard@codesourcery.com>
2466
2467         PR rtl-optimization/27073
2468         * gcse.c (try_replace_reg): Revert last change.  Continue to search
2469         for both REG_EQUAL and REG_EQUIV notes, but only perform replacements
2470         on the former.
2471
2472 2006-04-11  Eric Botcazou  <ebotcazou@libertysurf.fr>
2473
2474         * config/sparc/sparc.c (function_arg_slotno) <BLKmode>: Handle
2475         aggregate types other than record and union types.
2476         (function_arg): Likewise.
2477         (function_arg_pass_by_reference): In 64-bit mode, return 0 for
2478         small arrays.
2479         (function_value): In 64-bit mode, return objects that require it
2480         in FP registers.
2481
2482 2006-04-11  Roger Sayle  <roger@eyesopen.com>
2483
2484         * dwarf2out.c (premark_used_types): Remove problematic prototype.
2485
2486 2006-04-11  Jakub Jelinek  <jakub@redhat.com>
2487
2488         * gcc.c (LINK_COMMAND_SPEC): Move link_gomp after %o.
2489
2490 2006-04-03  Jeff Law  <law@redhat.com>
2491
2492         PR/27087
2493         * tree-ssa-copy.c (may_propagate_copy): Test flow sensitive
2494         alias information too.
2495
2496 2006-04-10  Mike Frysinger  <vapier@gentoo.org>
2497
2498         * Makefile.in (gcc-cross): Add $(exeext) to target name.
2499
2500 2006-04-10  Aldy Hernandez  <aldyh@redhat.com>
2501
2502         PR/21391
2503         * dwarf2out.c (struct die_struct): Add die_perennial_p field.
2504         (premark_used_types_helper): New.
2505         (premark_used_types): New.
2506         (gen_subprogram_die): Call premark_used_types.
2507         (prune_unused_types_walk): Do not prune perennial dies.
2508         * function.c (used_types_insert): New.
2509         * function.h (struct function): Add used_types_hash field.
2510         (used_types_insert): Add prototype.
2511         * Makefile.in (FUNCTION_H): Depend on HASHTAB_H.
2512         * c-parser.c (c_parser_cast_expression): Save casted types in used
2513         types hash table.
2514
2515 2006-04-11  Mark Mitchell  <mark@codesourcery.com>
2516
2517         PR target/26459
2518         * config/rs6000/e500-double.h (SUB3TARGET_OVERRIDE_OPTIONS): Test
2519         rs6000_explicit_options.float_gprs.
2520
2521 2006-04-10  Roger Sayle  <roger@eyesopen.com>
2522
2523         * config/i386/i386.c (ix86_expand_vector_init_one_nonzero): Renamed
2524         from ix86_expand_vector_init_low_nonzero.  Take an additional
2525         one_var argument indicating which element is non-zero.  Support
2526         one_var != 0 for V4SFmode and V4SImode by permuting the result.
2527         (ix86_expand_vector_init): Call ix86_expand_vector_init_one_nonzero
2528         with one_var instead of ix86_expand_vector_init_low_nonzero.
2529
2530 2006-04-10  Kazu Hirata  <kazu@codesourcery.com>
2531
2532         * Makefile.in (tree-into-ssa.o, tree-outof-ssa.o,
2533         tree-ssa-live.o, tree-ssa-alias.o, function.o, df-problems.o,
2534         global.o, cfglayout.o, lambda-code.o, reg-stack.o,
2535         build/genextract.o): Depend on vecprim.h.
2536         * cfglayout.c, df-problems.c, function.c, genextract.c,
2537         global.c, lambda-code.c, reg-stack.c, tree-into-ssa.c,
2538         tree-outof-ssa.c, tree-ssa-alias.c, tree-ssa-live.c: Include
2539         vecprim.h.
2540         * vecprim.h: New.
2541
2542 2006-04-10  Geoffrey Keating  <geoffk@apple.com>
2543
2544         * dwarf2out.c (struct dw_attr_struct): Remove dw_attr_next.
2545         Declare VECs of this type.
2546         (struct die_struct): Make field die_attr a VEC of dw_attr_struct.
2547         (remove_children): Delete.
2548         (add_dwarf_attr): Use VEC routines.
2549         (add_AT_flag): Update for changes to add_dwarf_attr.
2550         (add_AT_int): Likewise.
2551         (add_AT_unsigned): Likewise.
2552         (add_AT_long_long): Likewise.
2553         (add_AT_vec): Likewise.
2554         (add_AT_string): Likewise.
2555         (add_AT_die_ref): Likewise.
2556         (add_AT_fde_ref): Likewise.
2557         (add_AT_loc): Likewise.
2558         (add_AT_loc_list): Likewise.
2559         (add_AT_addr): Likewise.
2560         (add_AT_lbl_id): Likewise.
2561         (add_AT_lineptr): Likewise.
2562         (add_AT_macptr): Likewise.
2563         (add_AT_offset): Likewise.
2564         (add_AT_range_list): Likewise.
2565         (get_AT): Use VEC_iterate.
2566         (remove_AT): Use VEC_ordered_remove.
2567         (free_die): Fold remove_children into here; have it use VEC_iterate.
2568         (print_die): Use VEC_iterate on attrs.
2569         (reverse_die_lists): Don't reverse attr lists.
2570         (die_checksum): Use VEC_iterate on attrs.
2571         (same_die_p): Likewise.
2572         (output_location_lists): Likewise.
2573         (build_abbrev_table): Likewise.
2574         (size_of_die): Likewise.
2575         (unmark_all_dies): Likewise.
2576         (output_abbrev_section): Likewise.
2577         (output_die): Likewise.
2578         (prune_unused_types_walk_attribs): Likewise.
2579
2580 2006-04-10  Eric Botcazou  <ebotcazou@libertysurf.fr>
2581
2582         * doc/install.texi (*-*-solaris2*): Point to the configure page.
2583
2584 2006-04-10  Jakub Jelinek  <jakub@redhat.com>
2585
2586         PR debug/27057
2587         * dwarf2out.c (is_symbol_die): Return true also for namespaces.
2588
2589 2006-04-09  Roger Sayle  <roger@eyesopen.com>
2590
2591         * expr.c (store_constructor): Don't bother clearing target if
2592         we're about to assign a vector to it using vec_init_optab.
2593
2594 2006-04-10 Daniel Berlin  <dberlin@dberlin.org>
2595
2596         * tree-ssa-alias.c (lhs_may_store_to): New function.
2597         (recalculate_used_alone): Handle LHS of calls.
2598
2599 2006-04-09  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2600
2601         PR target/27034
2602         PR target/26508
2603         * config.gcc (hppa*64*-*-hpux11*): Add 'libgcc_stub.a' to extra_parts.
2604         * pa64-hpux.h (LIB_SPEC): Correct typo.  Don't append milli.a.
2605         (LINK_GCC_C_SEQUENCE_SPEC): Define.  Append milli.a here.
2606         (PA_CXA_FINALIZE_STUB, PA_JV_REGISTERCLASSES_STUB): Delete defines.
2607         (PA_INIT_FINI_HACK): Rename to PA_CRTBEGIN_HACK.
2608         (PA_CRTBEGIN_HACK): Ensure __do_global_ctors_aux is placed in text
2609         section.  Delete PA_CXA_FINALIZE_STUB and PA_JV_REGISTERCLASSES_STUB
2610         stubs.  Add ".align 8" directives before all ".dword" directives.
2611         (GTHREAD_USE_WEAK): Revise comment.
2612         (TARGET_ATTRIBUTE_WEAK): Define.
2613         * pa/t-pa64 (LIBGCCSTUB_OBJS): Add new rules for stublib.c, rfi-stub.o,
2614         dfi-stub.o, cxaf-stub.o and jvrc-stub.o.
2615         * stublib.c: New file.
2616
2617         PR target/26743
2618         PR target/11254
2619         PR target/10274
2620         * pa.md (cbranch patterns): Revise arguments used in calls to
2621         output_cbranch, output_bb and output_bvd.  Add long branch length
2622         attributes.
2623         (fbranch patterns): Handle long branches.
2624         (jump): Revise length check.  Revise arguments for output_lbranch call.
2625         Add long branch length attributes.
2626         (decrement_and_branch_until_zero): Add long branch length attributes.
2627         (output_movb, output_parallel_addb and output_parallel_movb patterns):
2628         Likewise.  Revise arguments for output_parallel_addb and
2629         output_parallel_movb calls.
2630         * pa-protos.h (output_cbranch, output_lbranch, output_bb, output_bvb,
2631         output_parallel_movb and output_parallel_addb): Update prototypes.
2632         * pa.c (output_cbranch): Revise arguments.  Correct handling of
2633         nullification in long branches.
2634         (output_lbranch): Add new argument to control extraction of delay
2635         instruction.
2636         (output_bb): Handle long branches.
2637         (output_bvb, output_dbra, output_movb, output_parallel_movb,
2638         output_parallel_addb): Likewise.
2639
2640 2006-04-09  Richard Sandiford  <richard@codesourcery.com>
2641
2642         PR rtl-optimization/27073
2643         * gcse.c (try_replace_reg): Just propagate into REG_EQUAL notes,
2644         not REG_EQUIVs.
2645
2646 2006-04-08  Daniel Berlin  <dberlin@dberlin.org>
2647
2648         * tree.h (tree_memory_tag): Add old_used_alone.
2649         (SMT_OLD_USED_ALONE): New macro.
2650         * tree-ssa-alias.c (recalculate_used_alone): Stop
2651         marking things for renaming unnecessarily.
2652
2653 2006-04-08  Kazu Hirata  <kazu@codesourcery.com>
2654
2655         * builtins.c, config/arm/arm.c, config/i386/cygwin.h,
2656         config/i386/i386.c, config/ia64/ia64.c, config/s390/fixdfdi.h,
2657         config/sh/sh.c, config/sh/sh.h, df-scan.c, except.c,
2658         haifa-sched.c, optabs.c, rtl.h, sched-deps.c, sched-int.h,
2659         sched-rgn.c, tree-inline.h, tree-ssa-dom.c,
2660         tree-ssa-loop-prefetch.c, tree-ssa-operands.c,
2661         tree-vect-patterns.c, tree-vrp.c: Fix comment typos.  Follow
2662         spelling convensions.
2663         * config/ia64/ia64.opt, doc/contrib.texi, doc/invoke.texi,
2664         doc/passes.texi, doc/tm.texi, doc/tree-ssa.texi: Fix comment
2665         typos.  Follow spelling conventions.
2666
2667 2006-04-07  DJ Delorie  <dj@redhat.com>
2668
2669         * config/m32c/m32c.c (m32c_function_arg): Structures are always
2670         passed on the stack.
2671         (m32c_init_cumulative_args): When a function returns a structure,
2672         always pass the pointer to that return area on the stack.
2673         (m32c_function_arg_advance): Don't increment the parameter number
2674         if we're processing the returned structure pointer.
2675         (pushm_info): Reverse order of registers.
2676
2677 2006-04-07  Sebastian Pop  <pop@cri.ensmp.fr>
2678
2679         * tree-ssa-loop-niter.c (inverse, number_of_iterations_ne,
2680         assert_no_overflow_lt, assert_loop_rolls_lt, number_of_iterations_lt,
2681         number_of_iterations_le, number_of_iterations_cond, find_loop_niter,
2682         estimate_numbers_of_iterations_loop): Use build_int_cst instead of
2683         build_int_cst_type.
2684         * tree-chrec.c (chrec_fold_multiply_poly_poly,
2685         chrec_fold_multiply): Same.
2686         * tree-ssa-loop-ivopts.c (strip_offset_1, force_expr_to_var_cost,
2687         force_expr_to_var_cost): Same.
2688         * tree-mudflap.c (mf_xform_derefs_1): Same.
2689         * tree-ssa-loop-prefetch.c (idx_analyze_ref): Same.
2690
2691 2006-04-07  David Edelsohn  <edelsohn@gnu.org>
2692
2693         * config/rs6000/rs6000.c (rs6000_rtx_costs) <CONST_DOUBLE>: Do not
2694         treat CONST_DOUBLE as INTVAL.  and64_2_operands require an extra
2695         insn.
2696
2697 2006-04-07  Jan Hubicka  <jh@suse.cz>
2698
2699         * ipa-inline.c (cgraph_early_inlining): Collect garbage.
2700
2701 2006-04-07  Richard Guenther  <rguenther@suse.de>
2702
2703         PR tree-optimization/26135
2704         * tree-ssa-copy.c (stmt_may_generate_copy): Handle memory
2705         loads for store copy-prop.
2706         (copy_prop_visit_stmt): Likewise.
2707
2708 2006-04-05  Robert Millan  <robertmh@gnu.org>
2709
2710         * config/i386/linux.h: Add a comment to mark macros that are
2711         being overriden in config/k*bsd-gnu.h.
2712         * config/kfreebsd-gnu.h: Redefine GLIBC_DYNAMIC_LINKER instead of
2713         DYNAMIC_LINKER.
2714         * config/knetbsd-gnu.h: Ditto.
2715
2716 2006-04-06  Jan Hubicka  <jh@suse.cz>
2717
2718         PR profile/20815
2719         PR profile/26399
2720         * coverage.c (coverage_checksum_string): Reorganize loop to not read
2721         after buffer.
2722
2723 2006-04-06  Mike Stump  <mrs@apple.com>
2724
2725         * builtins.c (expand_builtin_longjmp):Use #ifdef instead of #if
2726         for HAVE_nonlocal_goto to be consistent.
2727         (expand_builtin_nonlocal_goto): Likewise.
2728         (expand_builtin_strcmp): Use #ifdef instead of #if
2729         for HAVE_cmpstrnsi to be consistent.
2730
2731 2006-04-05  DJ Delorie  <dj@redhat.com>
2732
2733         * config/m32c/m32c.h (INCOMING_FRAME_SP_OFFSET): Adjust for m16c
2734         vs m32c.
2735
2736 2006-04-05  Bernd Schmidt  <bernd.schmidt@analog.com>
2737
2738         * config/bfin/bfin.c (bfin_legitimate_address_p): Disallow
2739         got-relative addressing for anything but SImode.
2740
2741         * config/bfin/lib1funcs.asm (modsi): P1/P2 can be call-clobbered
2742         even if the calling function doesn't modify them.
2743
2744 2006-04-05  Richard Guenther  <rguenther@suse.de>
2745
2746         PR tree-optimization/26919
2747         * ipa-inline.c (cgraph_decide_inlining_incrementally): Fix argument
2748         to cgraph_estimate_size_after_inlining.
2749
2750 2006-04-05  Alan Modra  <amodra@bigpond.net.au>
2751
2752         * reload.c (find_dummy_reload): Fix typo in 2006-04-03 change.
2753
2754 2006-04-05  Sebastian Pop  <pop@cri.ensmp.fr>
2755
2756         PR tree-optimization/26996
2757         * tree-scalar-evolution.c (analyze_scalar_evolution_1): Don't analyze
2758         VECTOR_TYPE variables.
2759
2760 2006-04-05  Richard Guenther  <rguenther@suse.de>
2761
2762         PR tree-optimization/26763
2763         * fold-const.c (fold_comparison): Move folding of
2764         PTR + CST CMP PTR + CST ...
2765         (fold_binary): ... here.  Fold only for EQ_EXPR and NE_EXPR.
2766
2767 2006-04-05  Gerald Pfeifer  <gerald@pfeifer.com>
2768
2769         * doc/install.texi (Prerequisites): Refine some wording on
2770         bootstrapping and ksh.
2771         Move the version numbers of DejaGnu here from the testing section
2772         and fix casing of names.
2773         Fix markup and clarify wording for autogen requirements.
2774         Refer to GCJ instead of just java.
2775         Refer to SVN instead of CVS.
2776         Describe diffutils as useful instead of necessary.
2777         (Downloading the source): Refer to SVN instead of CVS.
2778         Adjust a link to our web site accordingly.
2779         (Configuration): Fix casing of Bison.
2780         (Building): Refer to SVN instead of CVS.
2781         Fix a sentence on the use of Bison and remove duplicate (and
2782         incorrect) version number of Bison requirement.
2783         Remove one redundant list of packages needed for building.
2784         (Specific): Avoid reference to CVS.
2785
2786 2006-04-04  Eric Christopher  <echristo@apple.com>
2787
2788         * config/rs6000/rs6000.c (TARGET_MS_BITFIELD_LAYOUT_P): Define.
2789         (TARGET_USE_MS_BITFIELD_LAYOUT): Ditto.
2790         (rs6000_handle_struct_attribute): New.
2791         (rs6000_ms_bitfield_layout_p): Ditto.
2792
2793 2006-04-04  Geoffrey Keating  <geoffk@apple.com>
2794
2795         * config/darwin-crt3.c (atexit): Pass &__dso_handle rather than
2796         NULL for dso parameter to atexit_common.
2797
2798 2006-04-04  Eric Christopher  <echristo@apple.com>
2799
2800         * config/i386/i386.c (machopic_output_stub): Output \t
2801         between instructions and operands.
2802
2803 2006-04-04  David Edelsohn  <edelsohn@gnu.org>
2804
2805         * config/rs6000/rs6000.c (num_insns_constant_wide): Change
2806         satisfies_constraint_[IL] to explicit tests on value.
2807
2808 2006-04-04  Sebastian Pop  <pop@cri.ensmp.fr>
2809
2810         * tree-scalar-evolution.c (compute_overall_effect_of_inner_loop,
2811         set_nb_iterations_in_loop): Use build_int_cst instead of
2812         build_int_cst_type.
2813         * tree-data-ref.c (can_use_analyze_subscript_affine_affine): Use
2814         build_int_cst instead of convert.
2815
2816 2006-04-04  Carlos O'Donell  <carlos@codesourcery.com>
2817
2818         * doc/tm.texi (TARGET_STRUCT_VALUE_RTX): Document
2819         new value 2 for incoming.
2820         * function.c (expand_function_start): Call struct_value_rtx
2821         with incoming as 2.
2822         * config/sparc/sparc.md: Comment updated_return.
2823         * config/sparc/sparc.opt: Add -mstd-struct-return option.
2824         * config/sparc/sparc.c (sparc_struct_value_rtx): Use standard
2825         struct return if sparc_std_struct_return and incoming is 2.
2826         (print_operand): Do not adjust return if
2827         sparc_std_struct_return.
2828
2829 2006-04-04  Roger Sayle  <roger@eyesopen.com>
2830
2831         * builtins.c (fold_builtin_sprintf): Use fold_convert instead of
2832         convert in the middle-end.
2833         * expr.c (store_expr, store_constructor, get_inner_reference,
2834         expand_expr_real_1, string_constant, try_casesi, try_tablejump):
2835         Likewise.
2836         * tree.c (build_range_type): Likewise.
2837
2838 2006-04-04  Tom Tromey  <tromey@redhat.com>
2839
2840         * doc/install.texi (Prerequisites): Mention jar.
2841
2842 2006-04-04  Daniel Berlin  <dberlin@dberlin.org>
2843
2844         * doc/tree-ssa.texi (Preserving the virtual ssa form): New
2845         subsection.
2846
2847 2006-04-04  Matthias Klose  <doko@debian.org>
2848
2849         * Makefile.in (unprotoize.o): Same dependencies as for protoize.o.
2850         * Makefile.in (s-macro_list): Conform to POSIX rules in single quoted
2851         strings.
2852
2853 2006-04-03  Geoffrey Keating  <geoffk@apple.com>
2854
2855         * doc/extend.texi (Function Attributes): Rewrite visibility
2856         attribute documentation.
2857         * doc/invoke.texi (C++ Dialect Options): Rewrite
2858         -fvisibility-inlines-hidden documentation to describe something
2859         entirely different, although in practise compatible.
2860         (Code Gen Options): Warn about system headers in -fvisibility=
2861         documentation.
2862
2863         * doc/extend.texi (Other Builtins): Document that
2864         __builtin_nan is a compile-time constant only when its argument
2865         is valid.
2866
2867 2006-04-03  Adam Nemet  <anemet@caviumnetworks.com>
2868
2869         * simplify-rtx.c (simplify_unary_operation_1) <TRUNCATE>: When
2870         trying to remove TRUNCATE check if all bits outside the new mode
2871         are identical to the sign bit.
2872
2873 2006-04-03  Jeff Law  <law@redhat.com>
2874
2875         * tree-ssa-dom.c (propagate_rhs_into_lhs): Avoid useless folding
2876         and operand scanning in some common cases.
2877
2878 2006-04-03  Paolo Bonzini  <bonzini@gnu.org>
2879             Dale Johannesen  <dalej@apple.com>
2880
2881         PR target/19653
2882         * regclass.c (struct reg_pref): Update documentation.
2883         (regclass): Set prefclass to NO_REGS if memory is the best option.
2884         (record_reg_classes): Cope with a prefclass set to NO_REGS.
2885         * reload.c (find_reloads): Take PREFERRED_OUTPUT_RELOAD_CLASS
2886         into account.  For non-registers, equate an empty preferred
2887         reload class to a `!' in the constraint; move the if clause to
2888         do so after those that reject the insn.
2889         (push_reload): Allow PREFERRED_*_RELOAD_CLASS to liberally
2890         return NO_REGS.
2891         (find_dummy_reload): Likewise.
2892         * doc/tm.texi (Register Classes): Document what it means
2893         if PREFERRED_*_RELOAD_CLASS return NO_REGS.
2894         * config/i386/i386.c (ix86_preferred_reload_class): Force
2895         using SSE registers (and return NO_REGS for floating-point
2896         constants) if math is done with SSE.
2897         (ix86_preferred_output_reload_class): New.
2898         * config/i386/i386-protos.h (ix86_preferred_output_reload_class): New.
2899         * config/i386/i386.h (PREFERRED_OUTPUT_RELOAD_CLASS): New.
2900         * config/i386/i386.md: Remove # register preferences.
2901
2902 2006-04-02  Sebastian Pop  <pop@cri.ensmp.fr>
2903
2904         PR bootstrap/26992
2905         * tree-scalar-evolution.c (compute_overall_effect_of_inner_loop,
2906         chrec_is_positive, set_nb_iterations_in_loop): Use a variable for
2907         the type of nb_iter.
2908         (instantiate_parameters_1): Convert the operands before calling
2909         chrec_fold_minus, chrec_fold_plus, or chrec_fold_multiply.
2910         * tree-data-ref.c (can_use_analyze_subscript_affine_affine): Same.
2911
2912 2006-04-02  Roger Sayle  <roger@eyesopen.com>
2913
2914         * builtins.c (dummy_object): Use build_int_cst instead of convert.
2915         * tree-ssa-ccp.c (maybe_fold_stmt_addition): Use fold_convert
2916         instead of convert.
2917         * dojump.c (do_jump): Likewise.
2918         * expr.h (ADD_PARM_SIZE, SUB_PARM_SIZE, ARGS_SIZE_TREE): Likewise.
2919         * gimplify.c (gimple_boolify, gimplify_init_constructor,
2920         gimplify_boolean_expr): Likewise.
2921         * emit-rtl.c (set_mem_attributes_minus_bitpos): Likewise.
2922         * varasm.c (array_size_for_constructor): Likewise.
2923         * tree-object-size.c (compute_object_offset): Likewise.
2924
2925 2006-04-02  Roger Sayle  <roger@eyesopen.com>
2926
2927         PR middle-end/26977
2928         * expr.c (emit_group_store): Check whether simplify_gen_subreg returns
2929         NULL_RTX, indicating it couldn't create a valid paradoxical subreg.
2930
2931 2006-04-02  Sebastian Pop  <pop@cri.ensmp.fr>
2932
2933         PR tree-optimization/26939
2934         * tree-chrec.c (chrec_merge): Use eq_evolutions_p.
2935
2936 2006-04-02  Sebastian Pop  <pop@cri.ensmp.fr>
2937
2938         * tree-scalar-evolution.c (add_to_evolution_1): Pass an extra argument
2939         at_stmt.  Convert the type of operands before calling
2940         build_polynomial_chrec.
2941         (add_to_evolution): Pass an extra argument at_stmt.  Adjust the call to
2942         add_to_evolution_1.
2943         (follow_ssa_edge_in_rhs): Adjust call to add_to_evolution.
2944         (instantiate_parameters_1): Convert the type of operands before calling
2945         build_polynomial_chrec.
2946         * tree-chrec.c (chrec_fold_poly_cst, chrec_fold_plus_poly_poly,
2947         chrec_fold_multiply_poly_poly, chrec_replace_initial_condition,
2948         reset_evolution_in_loop): Insert asserts to check the types of the
2949         operands.
2950         (chrec_type): Moved...
2951         (eq_evolutions_p): Use operand_equal_p.
2952         * tree-chrec.h (build_polynomial_chrec): Insert an assert to check
2953         the types of the operands.
2954         (chrec_type): ...here.
2955         * tree-data-ref.c (create_data_ref): Convert the operands before
2956         calling chrec_replace_initial_condition.
2957         (same_access_functions, analyze_subscript_affine_affine,
2958         analyze_miv_subscript, all_chrecs_equal_p): Use eq_evolutions_p.
2959         (compute_subscript_distance, analyze_ziv_subscript,
2960         analyze_siv_subscript_cst_affine, compute_overlap_steps_for_affine_1_2,
2961         analyze_miv_subscript): Convert the operands before calling
2962         chrec_fold_minus or chrec_fold_plus.
2963
2964 2006-04-02  Sebastian Pop  <pop@cri.ensmp.fr>
2965
2966         * tree-data-ref.c (compute_all_dependences): Use a pointer to
2967         the dependence_relations vector.
2968         (compute_data_dependences_for_loop): Adjust call to
2969         compute_all_dependences.
2970
2971 2006-04-01  Roger Sayle  <roger@eyesopen.com>
2972             Richard Henderson  <rth@redhat.com>
2973
2974         * gimplify.c (gimplify_scan_omp_clauses) <OMP_CLAUSE_IF>: Call
2975         gimple_boolify on the condition before calling gimplify_expr.
2976
2977 2006-03-31  Bob Wilson  <bob.wilson@acm.org>
2978
2979         * config/xtensa/lib1funcs.asm: Rename abi_entry/abi_return macros
2980         to leaf_entry/leaf_return.  Change leaf_entry to add 16 bytes to
2981         the frame size.  Update to use the new macros.
2982         * config/xtensa/ieee754-sf.S: Use new leaf_entry/leaf_return macros.
2983         * config/xtensa/ieee754-df.S: Likewise.
2984
2985 2006-03-31  Richard Henderson  <rth@redhat.com>
2986
2987         * tree-cfg.c (make_ctrl_stmt_edges, make_exit_edges): Merge into...
2988         (make_edges): ... here.  Control fallthru creation with a local
2989         variable.  Do not play with fake edges.
2990         (make_omp_sections_edges): Don't set EDGE_ABNORMAL.
2991         (make_goto_expr_edges): Don't play with fake edges.  Make for_call
2992         a boolean.
2993
2994 2006-04-01  Joseph S. Myers  <joseph@codesourcery.com>
2995
2996         * dwarf2.h (DW64_CIE_ID): Define.
2997         * dwarf2out.c (DWARF_CIE_ID): Define.
2998         (output_call_frame_info): Output 0xffffffff before standard 8-byte
2999         length header.  Use DWARF_CIE_ID.
3000         (value_format): Use DW_FORM_data4 or DW_FORM_data8 for
3001         dw_val_class_loc_list depending on DWARF_OFFSET_SIZE.
3002
3003 2006-03-31  Kaz Kojima  <kkojima@gcc.gnu.org>
3004
3005         * config/sh/linux-atomic.asm: New file.
3006         * config/sh/t-linux (LIB2FUNCS_EXTRA): Add linux-atomic.asm.
3007
3008 2006-03-31  DJ Delorie  <dj@redhat.com>
3009
3010         * config/m32c/cond.md: Set condition flags properly throughout.
3011         * config/m32c/minmax.md: Likewise.
3012         * config/m32c/prologue.md: Likewise.
3013         * config/m32c/bitops.md: Likewise.
3014         * config/m32c/muldiv.md: Likewise.
3015         * config/m32c/mov.md: Likewise.
3016         * config/m32c/addsub.md: Likewise.
3017         * config/m32c/m32c.md: Likewise.
3018         * config/m32c/jump.md: Likewise.
3019         * config/m32c/shift.md: Likewise.
3020
3021         * config/m32c/cond.md (cmp<mode>): Call m32c_output_compare to
3022         conditionally output the pattern for this.
3023         * config/m32c/m32c.c (flags_needed_for_conditional): New.
3024         (m32c_compare_redundant): New.
3025         (m32c_output_compare): New.
3026         * config/m32c/m32c-protos.h (m32c_output_compare): New.
3027
3028         * config/m32c/m32c.c (m32c_prepare_shift): Fix logic to clobber
3029         dest, not src.  Allow other 4-byte modes.
3030
3031 2006-03-30  Denis Chertykov  <denisc@overta.ru>
3032
3033         * doc/md.texi: Refer to avr/constraints.md instead of
3034         avr/avr.h.
3035
3036 2006-03-30  Roger Sayle  <roger@eyesopen.com>
3037
3038         * expr.c (emit_group_store): Make BYTEPOS a HOST_WIDE_INT to
3039         signed vs. unsigned comparison failures on some hosts.
3040
3041 2006-03-31  Alan Modra  <amodra@bigpond.net.au>
3042
3043         PR target/26459
3044         * config/rs6000/rs6000.h (CANNOT_CHANGE_MODE_CLASS): Limit 2003-12-08
3045         change to FLOAT_REGS.
3046
3047         * config/rs6000/rs6000.c (rs6000_explicit_options): Add ieee.
3048         (rs6000_override_options): Use it.
3049         (rs6000_handle_option): Set it.  Set rs6000_explicit_options.abi
3050         only for -mabi=spe/no-spe and -mabi=altivec.
3051
3052 2006-03-30  Geoffrey Keating  <geoffk@apple.com>
3053
3054         * config/darwin.h (LINK_COMMAND_SPEC): Don't try to protect %S with
3055         !Zdynamiclib.
3056
3057 2006-03-30  Carlos O'Donell  <carlos@codesourcery.com>
3058
3059         * Makefile.in: Rename docdir to gcc_docdir.
3060
3061 2006-03-30  Roger Sayle  <roger@eyesopen.com>
3062
3063         PR target/17959
3064         * expr.c (emit_group_store): Optimize group stores into a pseudo
3065         register by using a paradoxical subreg to initialize the destination
3066         if the first or last member of the group specifies a "low part".
3067
3068 2006-03-30  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
3069
3070         PR target/26734
3071         * rtl.def (DEPS_LIST): Change type of the second operand to 'int'.
3072         * target.h (struct gcc_target.speculate_insn): Change type of the
3073         second parameter to 'int'.
3074         * lists.c (alloc_DEPS_LIST): Change signature.  Update reference to
3075         the second operand of the DEPS_LIST.
3076         (copy_DEPS_LIST_list): Update reference to the second operand of the
3077         DEPS_LIST.
3078         * rtl.h (alloc_DEPS_LIST): Update signature.
3079         * sched-int.h (ds_t): Change typedef to 'int'.
3080         (DEP_STATUS, BITS_PER_DEP_STATUS): Update.
3081
3082 2006-03-30  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
3083
3084         * haifa-sched.c (try_ready): Change condition to restore
3085         non-speculative pattern of the instruction.
3086         (process_insn_depend_be_in_spec): Code to keep probability of the
3087         speculative dependence non-decreasing.
3088
3089 2006-03-30  Jie Zhang  <jie.zhang@analog.com>
3090
3091         * config/bfin/bfin.c (single_move_for_strmov): Renamed to...
3092         (single_move_for_movmem): ... this. Also change all uses.
3093         (bfin_expand_strmov): Renamed to...
3094         (bfin_expand_movmem): ... this. Also change all uses.
3095         * config/bfin/bfin.md (movstrsi): Renamed to...
3096         (movstrsi): ...this.
3097
3098 2006-03-30  Paolo Bonzini  <bonzini@gnu.org>
3099
3100         PR tree-optimization/26830
3101
3102         * tree-ssa-copy.c (copy_prop_visit_assignment): Do not check loop depth.
3103         (copy_prop_visit_stmt): Remove write-only variable ann.
3104         (init_copy_prop): Check variable loop depth here.  Do not simulate
3105         memory-tag and virtual operand PHIs except for store copy prop.
3106
3107 2006-03-30  Richard Guenther  <rguenther@suse.de>
3108
3109         * config/i386/i386.c: Remove builtins for SSE2 ABI intrinsic
3110         variants with double arguments.
3111
3112 2006-03-29  David Edelsohn  <edelsohn@gnu.org>
3113
3114         * genpreds.c (write_tm_constrs_h): Delete variable p.
3115         * genconditions.c (write_header): Add tm-constrs.h to included
3116         headers.
3117         * genpeep.c (main): Add toplev.h to included headers.
3118         * Makefile.in (build/gencondmd.o): Add tm-constrs.h dependency.
3119         (build/genpeep.o): Add toplev.h dependency.
3120         * config/rs6000/constraints.md: Add "W" constraint.
3121
3122 2006-03-29  Roger Sayle  <roger@eyesopen.com>
3123
3124         * stor-layout.c (mode_for_size_tree): Remove restiction on type
3125         sizes by correctly testing whether the size fits a host integer.
3126         (initialize_sizetypes): Use set_min_and_max_values_for_integral_type
3127         to correctly set TYPE_MIN_VALUE and TYPE_MAX_VALUE to the full
3128         SImode range for the default sizetype and bitsizetype.
3129
3130 2006-03-29  Roger Sayle  <roger@eyesopen.com>
3131
3132         * convert.c (convert_to_pointer): Preserve the TREE_OVERFLOW
3133         and TREE_CONSTANT_OVERFLOW bits of the argument.  Return
3134         quickly if the argument is already of the correct type.
3135         Call fold_build1 instead of build1.  Tidy up blank lines.
3136
3137 2006-03-29  David Edelsohn  <edelsohn@gnu.org>
3138
3139         * genemit.c (main): Add tm-constrs.h to included headers.
3140         * genoutput.c (output_prologue): Add tm-constrs.h to included headers.
3141         * genpeep.c (main): Add tm-constrs.h to included headers.
3142         * genpreds.c (write_satisfies_constraint_fns): Rename to ...
3143         (write_tm_constrs_h): this and write complete file.
3144         (write_tm_preds_h): Do not emit satisfies_constraint fns.
3145         (write_insn_preds_c): Add tm-constrs.h to included headers.
3146         (gen_constrs): New variable.
3147         (parse_option): Parse "-c".
3148         (main): Invoke write_tm_constrs_h.
3149         * genrecog.c (write_header): Add tm-constrs.h to included headers.
3150         * Makefile.in (STAGECOPYSTUFF): Add tm-constrs.h.
3151         (object_out_file): Add tm-constrs.h dependency.
3152         (insn-emit.o): Same.
3153         (insn-output.o): Same.
3154         (insn-peep.o): Same.
3155         (insn-preds.o): Same.
3156         (insn-recog.o): Same.
3157         (tm-constsr.h): New target.
3158         (s-constrs-h): New target.
3159
3160         * config/rs6000/constraints.md: New file.
3161         * config/rs6000/rs6000.c: Include tm-constrs.h.
3162         (num_insn_constant_wide): Convert to satisfies_constraint.
3163         (rs6000_rtx_costs): Convert to satisfies_constraint.
3164         * config/rs6000/rs6000.h (REG_CLASS_FROM_LETTER): Delete.
3165         (CONST_OK_FOR_LETTER_P): Delete.
3166         (CONST_DOUBLE_OK_FOR_LETTER_P): Delete.
3167         (EXTRA_CONSTRAINT): Delete.
3168         (EXTRA_MEMORY_CONSTRAINT): Delete.
3169         (EXTRA_ADDRESS_CONSTRAINT): Delete.
3170         * config/rs6000/predicates.md: Convert to satisfies_constraint.
3171         * config/rs6000/rs6000.md: Include constraints.md.  Convert to
3172         satisfies_constraint.
3173
3174         * config/i386/i386.c: Include tm-constrs.h.
3175
3176 2006-03-29  Sebastian Pop  <pop@cri.ensmp.fr>
3177
3178         * tree-loop-linear.c (compute_data_dependences_for_loop): Adjust calls.
3179         * tree-data-ref.c (find_data_references_in_loop,
3180         compute_data_dependences_for_loop): Use pointers to VEC.
3181         (analyze_all_data_dependences): Adjust calls.
3182         * tree-data-ref.h (find_data_references_in_loop,
3183         compute_data_dependences_for_loop): Adjust declarations.
3184         * tree-vect-analyze.c (vect_analyze_data_refs): Adjust call to
3185         compute_data_dependences_for_loop.
3186
3187 2006-03-29  Paul Brook  <paul@codesourcery.com>
3188
3189         * config/arm/vfp.md (movsf_vfp): Disparage w<->r alternatives.
3190         (movdf_vfp): Ditto.
3191
3192 2006-03-29  Sebastian Pop  <pop@cri.ensmp.fr>
3193
3194         PR tree-optimization/26859
3195         * tree-ssa-loop-niter.c (infer_loop_bounds_from_undefined): Avoid
3196         division by zero.
3197         (convert_step): Remove TREE_OVERFLOW and TREE_CONSTANT_OVERFLOW flags
3198         for the step after fold_convert.
3199
3200 2006-03-29  Paul Brook  <paul@codesourcery.com>
3201
3202         * reload1.c (choose_reload_regs): Check for all RTX_AUTOINC operators.
3203         (inc_for_reload): Handle PRE_MODIFY and POST_MODIFY addresses.
3204
3205 2006-03-29  Paul Brook  <paul@codesourcery.com>
3206
3207         PR middle-end/23623
3208         * targhooks.c (default_narrow_bitfield): New fuction.
3209         * targhooks.h (default_narrow_bitfield): add prototype.
3210         * target.h (gcc_target): Add narrow_volatile_bitfield.
3211         * target-def.h (TARGET_NARROW_VOLATILE_BITFIELD): Define.
3212         * stor-layout.c (get_best_mode): Use targetm.narrow_volatile_bitfield.
3213         * doc/tm.texi: Document TARGET_NARROW_VOLATILE_BITFIELDS.
3214         * config/arm/arm.c (TARGET_NARROW_VOLATILE_BITFIELD): Define.
3215
3216 2006-03-29  Andreas Krebbel  <krebbel1@de.ibm.com>
3217
3218         * config.gcc (s390-*-linux-*, s390x-*-linux*): Add t-dfprules to
3219         tmake_file.
3220         * config/s390/s390.c (S390_scalar_mode_supported_p): New function.
3221         (NR_C_MODES): Add TDmode, DDmode and SDmode.
3222         (s390_output_pool_entry, ): Accept MODE_DECIMAL_FLOAT.
3223         (s390_hard_regno_mode_ok): Disallow TDmode in integer regs.
3224         (s390_function_arg_float): Allow SDmode and DDmode values to be
3225         passed in floating point registers.
3226         (s390_function_arg_integer, s390_function_value): Replace MODE_FLOAT
3227         check with SCALAR_FLOAT_MODE_P.
3228         (TARGET_SCALAR_MODE_SUPPORTED_P): Define target macro.
3229
3230 2006-03-28  Zdenek Dvorak <dvorakz@suse.cz>
3231
3232         PR tree-optimization/25985
3233         * tree-ssa-loop-niter.c (number_of_iterations_le,
3234         number_of_iterations_ne): Make comments more precise.
3235         (number_of_iterations_cond): Add only_exit argument.  Use the
3236         fact that signed variables do not overflow only when only_exit
3237         is true.
3238         (loop_only_exit_p): New.
3239         (number_of_iterations_exit): Pass result of loop_only_exit_p to
3240         number_of_iterations_cond.
3241
3242 2006-03-28  Zdenek Dvorak <dvorakz@suse.cz>
3243
3244         PR tree-optimization/26643
3245         * tree-ssa-loop-ivopts.c (find_interesting_uses_address): Do not handle
3246         bit_field_refs.
3247
3248 2006-03-28  Kaz Kojima  <kkojima@gcc.gnu.org>
3249
3250         * config/sh/sh.md (udivsi3_i4_int): Clobber MACH_REG and MACL_REG.
3251         (divsi3_i4_int): Likewise.
3252
3253 2006-03-28  Roger Sayle  <roger@eyesopen.com>
3254
3255         * expr.c (emit_group_store): Only create a new pseudo reg if the
3256         quantity it needs to hold isn't already a suitable pseudo.
3257
3258 2006-03-28  Jeff Law  <law@redhat.com>
3259
3260         * timevar.def (TV_TREE_PHI_CPROP): New timevar.
3261         * tree-ssa-dom.c (pass_phi_only_cprop): Use it.
3262
3263 2006-03-28  Roger Sayle  <roger@eyesopen.com>
3264
3265         * fold-const.c (fold_binary) <BIT_XOR_EXPR>: Fold (X & Y) ^ Y as
3266         the equivalent ~X & Y, and the symmetry related transformations.
3267         (fold_binary) <BIT_AND_EXPR>: Similarly, fold (X ^ Y) & Y as
3268         ~X & Y, and symmetry related transforms.
3269
3270 2006-03-28  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
3271
3272         Revert my 2006-03-27 patches.
3273
3274 2006-03-28  Roger Sayle  <roger@eyesopen.com>
3275
3276         * fold-const.c (fold_unary) <NOP_EXPR>: Fold (T1)(~(T2)X) as
3277         ~(T1)X, when T1 and T2 are integer types of the same precision
3278         and (T2)X isn't an extension.
3279
3280 2006-03-28  Jeff Law  <law@redhat.com>
3281
3282         PR tree-optimization/26796
3283         * tree-ssa-dom.c (propagate_rhs_into_lhs): Queue blocks which
3284         need EH edge cleanups rather than purging them immediately.
3285         (eliminate_degenerate_phis): Handle queued EH cleanups.
3286
3287 2006-03-28  Daniel Berlin  <dberlin@dberlin.org>
3288
3289         * tree-ssa-alias.c (create_sft): Initially inherit TREE_ADDRESSABLE
3290         from parent_var.
3291
3292 2006-03-27  Roger Sayle  <roger@eyesopen.com>
3293
3294         PR middle-end/22524
3295         * fold-const.c (fold_binary) <MINUS_EXPR>: Call fold_convert to
3296         cast BIT_NOT_EXPR operand to the correct type.
3297
3298 2006-03-27  Sebastian Pop  <pop@cri.ensmp.fr>
3299
3300         * tree-loop-linear.c: Don't include varray.h.
3301         (gather_interchange_stats, try_interchange_loops,
3302         linear_transform_loops): Use VEC instead of VARRAY.
3303         * lambda-mat.c: Don't include varray.h.
3304         * tree-chrec.c: Same.
3305         * lambda-trans.c: Same.
3306         * tree-vectorizer.c (new_loop_vec_info, destroy_loop_vec_info): Use
3307         VEC instead of VARRAY.
3308         * tree-vectorizer.h: Idem.
3309         * tree-data-ref.c (dump_data_references,
3310         dump_data_dependence_relations, dump_dist_dir_vectors, dump_ddrs,
3311         initialize_data_dependence_relation, finalize_ddr_dependent,
3312         compute_all_dependences, find_data_references_in_loop,
3313         compute_data_dependences_for_loop, analyze_all_data_dependences,
3314         free_dependence_relation, free_dependence_relations,
3315         free_data_refs): Idem.
3316         * tree-data-ref.h (data_reference_p, subscript_p): New.
3317         (data_dependence_relation, DDR_SUBSCRIPT, DDR_NUM_SUBSCRIPTS): Use
3318         VEC instead of VARRAY.
3319         (DDR_SUBSCRIPTS_VECTOR_INIT): Removed.
3320         (find_data_references_in_loop, compute_data_dependences_for_loop,
3321         dump_ddrs, dump_dist_dir_vectors, dump_data_references,
3322         dump_data_dependence_relations, free_dependence_relations,
3323         free_data_refs): Adjust declaration.
3324         (lambda_transform_legal_p): Move declaration here...
3325         * tree-vect-analyze.c (vect_analyze_data_ref_dependences,
3326         vect_compute_data_refs_alignment, vect_verify_datarefs_alignment,
3327         vect_enhance_data_refs_alignment, vect_analyze_data_ref_accesses,
3328         vect_analyze_data_refs): Use VEC instead of VARRAY.
3329         * lambda.h (lambda_transform_legal_p): ...from here.
3330         * lambda-code.c (lambda_transform_legal_p): Use VEC instead of VARRAY.
3331         * tree-vect-transform.c (vect_update_inits_of_drs): Idem.
3332         * Makefile.in (tree-loop-linear.o, lambda-mat.o, lambda-trans.o,
3333         tree-chrec.o): Don't depend on VARRAY_H.
3334
3335 2006-03-27  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
3336
3337         * rtl.def (Copyright): Update date.
3338         (DEPS_LIST): Change type of the second operand to 'int'.
3339         * target.h (Copyright): Update date.
3340         (struct gcc_target.speculate_insn): Change type of the second parameter
3341         to 'int'.
3342         * lists.c (Copyright): Update date.
3343         (alloc_DEPS_LIST): Change signature.  Update reference to the second
3344         operand of the DEPS_LIST.
3345         (copy_DEPS_LIST_list): Update reference to the second operand of the
3346         DEPS_LIST.
3347         * rtl.h (Copyright): Update date.
3348         (alloc_DEPS_LIST): Update signature.
3349         * sched-int.h (Copyright): Update date.
3350         (ds_t): Change typedef to 'int'.
3351         (DEP_STATUS, BITS_PER_DEP_STATUS): Update.
3352
3353 2006-03-27  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
3354
3355         * haifa-sched.c (Copyright): Update date.
3356         (try_ready): Change condition to restore non-speculative pattern
3357         of the instruction.
3358         (process_insn_depend_be_in_spec): Code to keep probability of the
3359         speculative dependence non-decreasing.
3360
3361 2006-03-27  Bernd Schmidt  <bernd.schmidt@analog.com>
3362
3363         * regrename.c (replace_oldest_value_addr): Initialize a variable to
3364         shut up the compiler.
3365
3366 2006-03-27  J"orn Rennecke <joern.rennecke@st.com>
3367
3368         * config/sh/t-sh ($(T)libic_invalidate_array_4-100.a): Fix rule
3369         to use lib prefix for target.
3370         ($(T)libic_invalidate_array_4-200.a): Likewise.
3371         ($(T)libic_invalidate_array_4a.a): Likewise.
3372
3373 2006-03-27  Andrew Stubbs <andrew.stubbs@st.com>
3374             J"orn Rennecke <joern.rennecke@st.com>
3375
3376         * superh.opt: New file.
3377         * sh.c (boardtype, osruntime): Remove.
3378         * superh.h (SUBTARGET_OPTIONS): Remove.
3379         * config.gcc (sh*-superh-elf): Add sh/superh.opt to extra_options.
3380
3381         * config.gcc (sh*-*-*): Don't use c-c ranges for tr.  Quote sed
3382         arguments with ^ and/or [].
3383
3384         * config.gcc (sh-*-*): Add quoting to account for quirk of
3385         Solaris /bin/sh.
3386         Replace == with = in enable_incomplete_targets test.
3387
3388         * config/sh/superh.h (SUBTARGET_LINK_SPEC): Replace LITTLE_ENDIAN_BIT
3389         with MASK_LITTLE_ENDIAN.
3390
3391         * config.gcc (sh*-superh-elf): Add sh/superh.h to tm_file.
3392         * config/sh/sh.opt: Added to some comments.
3393         * config/sh/superh.h: Removed some chaff.
3394
3395         * config/sh/sh.opt: Add m4-[1234]00* options.
3396         * config/sh/sh.c (sh_handle_option): Likewise.
3397         * config/sh/t-sh (IC_EXTRA_PARTS, EXTRA_MULTILIB_PARTS): Define.
3398         (ic_invalidate_array_4-100.o): New rule.
3399         ($(T)libic_invalidate_array_4-100.a): Likewise.
3400         (ic_invalidate_array_4-200.o): Likewise.
3401         ($(T)libic_invalidate_array_4-200.a): Likewise.
3402         (ic_invalidate_array_4a.o): Likewise.
3403         ($(T)libic_invalidate_array_4a.a): Likewise.
3404         * config/sh/t-elf (EXTRA_MULTILIB_PARTS): Add IC_EXTRA_PARTS.
3405         * config/sh/embed-elf.h (LIBGCC_SPEC): Add clauses for m4-100*,
3406         m4-200*, and m4a*.
3407         * config/sh/crt1.asm: Merged in profiling code.
3408         * config/sh/superh.h (STARTFILE_SPEC): Override.
3409         * config/sh/t-superh: Override EXTRA_MULTILIB_PARTS.
3410         Add rules for $(T)crt1-mmu.o, $(T)gcrt1-mmu.o and $(T)gcrt1.o.
3411         * config.gcc (sh*-superh-elf): Add t-superh to tmake_file.
3412
3413         * t-sh (MULTILIB_MATCHES): Add sh4-[1245]00* variants.
3414         * config/sh/t-superh: Removed now-redundant MULTILIB_OPTIONS /
3415         MULTILIB_DIRNAMES / MULTILIB_MATCHES settings.
3416
3417         * sh.opt (mpretend-cmove): New option.
3418         * sh.h (OPERRIDE_OPTIONS): Switch it off if not TARGET_SH1.
3419         * sh.md (movsicc_t_false, movsicc_t_tru): New patterns.
3420         (movsicc): Add TARGET_PRETEND_CMOVE code.
3421
3422 2006-03-27  Andreas Krebbel  <krebbel1@de.ibm.com>
3423
3424         * config/s390/s390-protos.h (s390_hard_regno_mode_ok,
3425         s390_class_max_nregs): New function prototypes.
3426         * config/s390/s390.c (REGNO_PAIR_OK): New macro.
3427         (s390_hard_regno_mode_ok, s390_class_max_nregs): New functions.
3428         * config/s390/s390.h (HARD_REGNO_NREGS, HARD_REGNO_MODE_OK,
3429         CLASS_MAX_NREGS): Macro bodies replaced by function calls.
3430
3431 2006-03-26  Geoffrey Keating  <geoffk@apple.com>
3432
3433         * dwarf2out.c (add_location_or_const_value_attribute): Call
3434         tree_add_const_value_attribute if nothing else works.
3435         (reference_to_unused): New.
3436         (rtl_for_decl_init): Use reference_to_unused to decide whether
3437         to output an initializer.
3438
3439 2006-03-27  Alan Modra  <amodra@bigpond.net.au>
3440
3441         PR target/26459
3442         * config/rs6000/rs6000.md (DF reg move peephole): Prevent
3443         peephole removing spe frob_di_df_2.
3444
3445 2006-03-26  Sebastian Pop  <pop@cri.ensmp.fr>
3446
3447         * tree-data-ref.c: Rename DDR_SIZE_VECT to DDR_NB_LOOPS.
3448         (subscript_dependence_tester_1): Declared.
3449         (print_dir_vectors, print_dist_vectors): New.
3450         (debug_data_dependence_relation): New.
3451         (dump_data_dependence_relation): Print more details.
3452         (initialize_data_dependence_relation): Initialize DDR_LOOP_NEST.
3453         (analyze_subscript_affine_affine): Don't ICE when gcd_alpha_beta is 0.
3454         (save_dist_v, save_dir_v, add_outer_distances,
3455         build_classic_dist_vector_1): New.
3456         (build_classic_dist_vector): Rewrite to work on DDR_LOOP_NEST.
3457         Don't test for lambda_vector_lexico_pos.
3458         (same_access_functions, add_multivariate_self_dist,
3459         add_other_self_distances, dir_from_dist): New.
3460         (build_classic_dir_vector): Replace implementation almost identical to
3461         build_classic_dist_vector with a walk of DDR_DIST_VECTS with a call to
3462         dir_from_dist.
3463         (subscript_dependence_tester_1): New.
3464         (subscript_dependence_tester): Handle the lexicographically negative
3465         distance vectors by recomputing the dependence relation.
3466         (compute_affine_dependence): Remove parameter loop_nest_depth.
3467         (compute_self_dependence): Don't call compute_subscript_distance.
3468         (compute_all_dependences): Remove parameters nb_loops, loop_nest_depth.
3469         Add a parameter for the loop_nest.
3470         (find_loop_nest_1, find_loop_nest): New.
3471         (compute_data_dependences_for_loop): Compute the loop nest, and give
3472         up if the nest is not well formed.
3473         * tree-data-ref.h (loop_p): New.
3474         (struct data_dependence_relation): Replace size_vect field with
3475         loop_nest, a vec of loops.
3476         (DDR_SIZE_VECT): Renamed DDR_NB_LOOPS.
3477         (DDR_LOOP_NEST): New.
3478         (print_dir_vectors, print_dist_vectors,
3479         debug_data_dependence_relation): Declared.
3480         (index_in_loop_nest): New.
3481         * tree-vect-analyze.c (vect_analyze_data_ref_dependence): Use
3482         DDR_LOOP_NEST and index_in_loop_nest to determine the dependence
3483         distance.
3484
3485 2006-03-25  Adam Nemet  <anemet@caviumnetworks.com>
3486
3487         * simplify-rtx.c (simplify_relational_operation): Call
3488         simplify_relational_operation_1 even if mode is VOIDmode.
3489
3490 2006-03-25  Daniel Berlin  <dberlin@dberlin.org>
3491
3492         PR tree-optimization/26804
3493         * tree.h (DECL_CALL_CLOBBERED): New macro.
3494         (tree_decl_common): Add call_clobbered_flag.
3495         * tree-flow-inline.h (is_call_clobbered): Use DECL_CALL_CLOBBERED.
3496         (mark_call_clobbered): Set DECL_CALL_CLOBBERED.
3497         (clear_call_clobbered): Clear DECL_CALL_CLOBBERED.
3498         (mark_non_addressable): Ditto.
3499         * tree-ssa.c (verify_call_clobbered): New function.
3500         (verify_alias_info): Use it.
3501         * tree-pass.h (pass_reset_cc_flags): New prototype.
3502         * tree-ssa-alias.c (pass_reset_cc_flags): New structure.
3503         (reset_cc_flags): New function.
3504         * passes.c (init_optimization_passes): Call reset_cc_flags after
3505         initializing referenced_vars.
3506
3507 2006-03-25  Uros Bizjak  <uros@kss-loka.si>
3508             Roger Sayle  <roger@eyesopen.com>
3509
3510         PR middle-end/26717
3511         * fold-const.c (fold_binary) [RDIV_EXPR]: Do not optimize A / A
3512         to 1.0 for non-real operands. Implement A / A optimization for
3513         complex operands.
3514
3515 2006-03-25  H.J. Lu  <hongjiu.lu@intel.com>
3516
3517         * config/i386/i386.c (size_cost): Correct the comment for
3518         cost of storing fp registers.
3519         (i386_cost): Likewise.
3520         (i486_cost): Likewise.
3521         (pentium_cost): Likewise.
3522         (pentiumpro_cost): Likewise.
3523         (k6_cost): Likewise.
3524         (athlon_cost): Likewise.
3525         (k8_cost): Likewise.
3526         (pentium4_cost): Likewise.
3527         (nocona_cost): Likewise.
3528         (generic64_cost): Likewise.
3529         (generic32_cost): Likewise.
3530
3531 2006-03-24  Denis Chertykov  <denisc@overta.ru>
3532
3533         * config/avr/avr-protos.h (extra_constraint): Delete.
3534         (extra_constraint_Q): New declaration.
3535         * config/avr/constraints.md: New file.
3536         * config/avr/avr.md: Include it.
3537         (REG_X, REG_Y, REG_Z, REG_W): New constants.
3538         (TMP_REGNO, ZERO_REGNO): Likewise.
3539         (UNSPEC_STRLEN, UNSPEC_INDEX_JMP): Likewise.
3540         * config/avr/avr.c (avr_reg_class_from_letter): Delete.
3541         (extra_constraint): Delete.
3542         (extra_constraint_Q): Test for memory constraint 'Q'.
3543         * config/avr/avr.h (REG_X,REG_Y,REG_Z,REG_W): Delete.
3544         (REG_CLASS_FROM_LETTER): Delete.
3545         (CONST_OK_FOR_LETTER_P): Delete.
3546         (CONST_DOUBLE_OK_FOR_LETTER_P): Delete.
3547         (EXTRA_CONSTRAINT): Delete.
3548         (TMP_REGNO): Delete.
3549         (ZERO_REGNO): Delete.
3550
3551 2006-03-24  Jeff Law  <law@redhat.com>
3552
3553         * tree-ssa-dom.c (propagate_rhs_into_lhs): Don't call update_stmt
3554         directly.  Call mark_new_vars_to_rename slightly earlier.
3555
3556 2006-03-24  Geoffrey Keating  <geoffk@apple.com>
3557
3558         * dwarf2out.c (is_c_family): Understand new DWARF3 language types.
3559         (is_cxx): Likewise.
3560         (gen_compile_unit_die): Use new language types for Objective-C and
3561         Objective-C++.
3562         (dwarf2out_decl): Use is_cxx rather than testing explicitly against
3563         DW_LANG_C_plus_plus.
3564
3565         PR 26793
3566         * config/t-darwin (crt3.o): Work around bug 26840.
3567         * config/darwin-crt3.c: Rewrite.
3568         * config/darwin.h (STARTFILE_SPEC): Don't use -l for crt3.o.
3569
3570 2006-03-24  Carlos O'Donell  <carlos@codesourcery.com>
3571
3572         * doc/invoke.texi: Document -femit-class-debug-always
3573         * common.opt: Add -femit-class-debug-always.
3574
3575 2006-03-24  Andreas Krebbel  <krebbel1@de.ibm.com>
3576
3577         * config/s390/s390.c (s390_decompose_address): Allow SImode for
3578         index and base register.
3579         (s390_expand_plug_operand, legitimate_address_p, preferred_la_operand_p,
3580         print_operand_address, print_operand): Replaced REG_OK_FOR_BASE_STRICT_P
3581         with REGNO_OK_FOR_BASE_P and REG_OK_FOR_INDEX_STRICT_P with
3582         REGNO_OK_FOR_INDEX_P.
3583         * config/s390/s390.h (REGNO_OK_FOR_INDEX_P): Replaced check with
3584         ADDR_REGNO_P.
3585         (REG_OK_FOR_INDEX_NONSTRICT_P, REG_OK_FOR_BASE_NONSTRICT_P,
3586         REG_OK_FOR_INDEX_STRICT_P, REG_OK_FOR_BASE_STRICT_P, REG_OK_FOR_INDEX_P,
3587         REG_OK_FOR_BASE_P): Definitions removed.
3588
3589 2006-03-24  Jakub Jelinek  <jakub@redhat.com>
3590
3591         PR middle-end/26611
3592         * gimplify.c (gimplify_bind_expr): Only call omp_add_variable on
3593         non-global variables that don't have DECL_SEEN_IN_BIND_EXPR_P bit
3594         set yet or weren't marked as local yet.
3595
3596 2006-03-24  Bernd Schmidt  <bernd.schmidt@analog.com>
3597
3598         * regrename.c (scan_rtx_address): Initialize a variable to shut up
3599         the compiler.
3600
3601 2006-03-24  Eric Botcazou  <ebotcazou@adacore.com>
3602
3603         * config/rs6000/rs6000-protos.h (rs6000_offsettable_memref_p): Declare.
3604         (rs6000_legitimate_small_data_p): Delete.
3605         * config/rs6000/rs6000.c (rs6000_offsettable_memref_p): New predicate.
3606         (rs6000_legitimate_small_data_p): Rename to legitimate_small_data_p
3607         and make static.  Add forward declaration.  Update uses.
3608         (rs6000_split_multireg_move): Use rs6000_offsettable_memref_p instead
3609         of offsettable_memref_p.
3610         * config/rs6000/rs6000.md (movdf_hardfloat32): Revert 2005-08-23 fix.
3611         Use rs6000_offsettable_memref_p instead of a less accurate predicate.
3612
3613 2006-03-24  Jeff Law  <law@redhat.com>
3614
3615         * tree-ssa-dom.c (propagate_rhs_into_lhs): Temporarily work
3616         around bug in immediate-use iterator.
3617
3618 2006-03-24  Alan Modra  <amodra@bigpond.net.au>
3619
3620         PR target/26607
3621         * config/rs6000/darwin-ldouble.c: Don't compile when __NO_FPRS__
3622         or __LITTLE_ENDIAN__.
3623
3624 2006-03-23  J"orn Rennecke <joern.rennecke@st.com>
3625
3626         * config/sh/divtab-sh4.c, config/sh/divcost-analysis: New files.
3627         * config/sh/lib1funcs.asm (div_table): Add !__SH5__ variant.
3628         * config/sh/t-sh (LIB1ASMFUNCS): Add _div_table.
3629         * config/sh/sh.opt (mdiv=): Amend description.
3630         * config/sh/sh.h (TARGET_DIVIDE_CALL_DIV1): New macro.
3631         (TARGET_DIVIDE_CALL_FP, TARGET_DIVIDE_CALL_TABLE): Likewise.
3632         (sh_divide_strategy_e): Add new members SH_DIV_CALL_DIV1,
3633         SH_DIV_CALL_FP, SH_DIV_CALL_TABLE and SH_DIV_INTRINSIC.
3634         (OVERRIDE_OPTIONS): Also process sh_div_str for TARGET_SH1.
3635         Calculate sh_divsi3_libfunc using TARGET_DIVIDE_* macros.
3636         * config/sh/sh.md (udivsi3_i4_int, divsi3_i4_int): New patterns.
3637         (udivsi3, divsi3): Use them.  Check TARGET_DIVIDE_CALL_TABLE /
3638         TARGET_DIVIDE_CALL_FP.
3639
3640 2006-03-23  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
3641
3642         * haifa-sched.c (choose_ready): Fix type of the local variable.
3643         Move local variables.  Add comment.
3644         (check_reg_live): Change signature.  Make callable from debugger.
3645         * sched-int.h (check_reg_live): Update signature.
3646         * sched-ebb.c (check_reg_live): Update parameters.
3647         * sched-rgn.c (check_reg_live): Ditto.
3648         (region_head_or_leaf_p): Check pointer before dereferencing.
3649         * config/ia64/ia64.c (ia64_set_sched_flags): Disable data speculation
3650         before reload on optimization levels below 1.
3651
3652 2006-03-23  Richard Henderson  <rth@redhat.com>
3653
3654         * config/alpha/alpha.c (alpha_legitimate_constant_p): Reject
3655         tls symbols.
3656
3657         PR target/26347
3658         * config/alpha/predicates.md (local_symbolic_operand): Reject
3659         weak symbols.
3660
3661 2006-03-23  Andrew Pinski  <pinskia@physics.uc.edu>
3662
3663         PR tree-opt/26795
3664         * tree-ssa-pre.c (create_value_expr_from): Don't reject
3665         expressions which have overflowed constants.
3666
3667 2006-03-23  Zdenek Dvorak <dvorakz@suse.cz>
3668
3669         * cse.c (cse_end_of_basic_block): Do not check for LOOP_END note.
3670
3671 2006-03-23  Zdenek Dvorak <dvorakz@suse.cz>
3672
3673         * cfgloopmanip.c (create_loop_notes): Removed.
3674         * final.c (final_scan_insn): Do not handle loop notes.
3675         * jump.c (squeeze_notes): Ditto.
3676         * cfglayout.c (skip_insns_after_block,
3677         duplicate_insn_chain): Ditto.
3678         * cfgcleanup.c (rest_of_handle_jump2): Do not call
3679         create_loop_notes.
3680         * cfgloop.h (create_loop_notes): Declaration removed.
3681
3682 2006-03-23  Richard Sandiford  <richard@codesourcery.com>
3683
3684         * varasm.c (output_constant_pool): Restore fnname and fndecl
3685         arguments.
3686         (assemble_start_function): Adjust call accordingly.
3687         (assemble_end_function): Likewise.
3688
3689 2006-03-22  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
3690
3691         PR mudflap/26789
3692         * tree-mudflap.c (mudflap_finish_file): Skip erroneous objects.
3693
3694         PR mudflap/26790
3695         * tree-mudflap.c (mf_xform_derefs_1): Return early on error_mark_node.
3696
3697 2006-03-22  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
3698
3699         PR driver/22600
3700         * system.h (ICE_EXIT_CODE): New macro.
3701         * diagnostic.c (diagnostic_count_diagnostic): Exit with ICE_EXIT_CODE.
3702         (diagnostic_action_after_output): Likewise.
3703         * gcc.c (fatal_ice): New function.
3704         (execute): Use it instead of fatal.
3705         (fancy_abort): Likewise.
3706         * doc/invoke.texi (-pass-exit-codes): Document return code for ICEs.
3707
3708 2006-03-22  Jeff Law  <law@redhat.com>
3709
3710         * loop-unroll.c (analyze_iv_to_split_insn): Handle
3711         iv_analyze_result returning false.
3712
3713 2006-03-22  Jie Zhang  <jie.zhang@analog.com>
3714
3715         * config/bfin/bfin.h (ASM_FORMAT_PRIVATE_NAME): Remove.
3716
3717 2006-03-22  Richard Henderson  <rth@redhat.com>
3718
3719         PR middle-end/26084
3720         * except.c (duplicate_eh_regions_0): New.
3721         (duplicate_eh_region_1): Duplicate the children of the node as
3722         well as the node itself.  Link them up properly.
3723         (duplicate_eh_region_2): Merge into ...
3724         (duplicate_eh_regions): ... here.  Take copy_region argument, and
3725         copy only a sub-tree if asked.  Simplify copying and fixup.
3726         (eh_region_outer_p): New.
3727         * except.h (duplicate_eh_regions): Update decl.
3728         (eh_region_outer_p): Declare.
3729         * omp-low.c (lower_omp_single): Fix eh region placement wrt OMP_RETURN.
3730         (lower_omp_master): Likewise.
3731         (lower_omp_ordered): Likewise.
3732         * tree-cfg.c (struct move_stmt_d): Add new_label_map.
3733         (move_stmt_r): Use it to remap labels.  Handle recursion vs
3734         remap_decls_p properly.
3735         (move_block_to_fn): Pass in new_label_map.  Remap RESX_EXPR.
3736         (find_outermost_region_in_block): New.
3737         (new_label_mapper): New.
3738         (move_sese_region_to_fn): Copy eh information to the new function
3739         properly.
3740         * tree-inline.c (copy_cfg_body): Update for new duplicate_eh_regions
3741         argument.
3742         * tree-pretty-print.c (dump_generic_node): Dump RESX_EXPR region
3743         number.
3744
3745 2006-03-22  Richard Sandiford  <richard@codesourcery.com>
3746
3747         * doc/md.texi (-mshared): Mention that -mshared code can be linked
3748         into shared libraries.
3749
3750 2006-03-22  Richard Sandiford  <richard@codesourcery.com>
3751
3752         * doc/md.texi: Refer to i386/constraints.md instead of
3753         i386/predicates.md.
3754         * config/i386/constraints.md: New file, extracted from...
3755         * config/i386/predicates.md: ...here.
3756         * config/i386/i386.md: Include constraints.md.
3757
3758 2006-03-21  Jason Merrill  <jason@redhat.com>
3759
3760         * builtins.c (expand_builtin_fork_or_exec): Fix pasto.
3761
3762         PR middle-end/20297
3763         * expr.c (init_block_move_fn): Force default visibility.
3764         (init_block_clear_fn): Likewise.
3765         * builtins.c (expand_builtin_fork_or_exec): Likewise.
3766         * targhooks.c (default_external_stack_protect_fail): Likewise.
3767
3768 2006-03-21  Richard Sandiford  <richard@codesourcery.com>
3769
3770         * config/mips/predicates.md (const_call_insn_operand): Allow direct
3771         calls to locally-defined functions if TARGET_ABSOLUTE_ABICALLS.
3772         * config/mips/mips.md (jal_macro): Test TARGET_ABSOLUTE_ABICALLS.
3773         Use TARGET_OLDABI instead of !TARGET_NEWABI.
3774         (loadgp): Use mips_current_loadgp_style.
3775         (loadgp_noshared): New pattern.
3776         (sibcall_internal): Use MIPS_CALL.
3777         (sibcall_value_internal): Likewise.
3778         (sibcall_value_multiple_internal): Likewise.
3779         (call_internal): Likewise.
3780         (call_value_internal): Likewise.
3781         (call_value_multiple_internal): Likewise.
3782         (call_split): Use MIPS_CALL and add an 'S' constraint.
3783         (call_value_split): Likewise.
3784         (call_value_multiple_split): Likewise.
3785         * config/mips/mips.opt (-mabicalls): Tweak docstring.
3786         (-mshared): New option.
3787         * config/mips/mips-protos.h (mips_loadgp_style): New enum.
3788         (mips_current_loadgp_style): Declare.
3789         * config/mips/mips.c (mips_classify_symbol): Avoid using
3790         SYMBOL_GOT_LOCAL if TARGET_ABSOLUTE_ABICALLS.  Use SYMBOL_GENERAL
3791         rather than SYMBOL_GOT_GLOBAL for locally-binding symbols if
3792         TARGET_ABSOLUTE_ABICALLS.
3793         (override_options): Adjust comments.  Improve the warning that is
3794         issued when -mabicalls and -G are used together.
3795         (mips_file_start): Remove comment.
3796         (mips_current_loadgp_style): New function.
3797         (mips_gnu_local_gp): New variable.
3798         (mips_emit_loadgp): Use mips_current_loadgp_style.  Handle
3799         LOADGP_ABSOLUTE.
3800         (mips_output_function_prologue): Use mips_current_laodgp_style.
3801         (mips_expand_prologue): Call mips_emit_loadgp before emitting
3802         the cprestore instruction.
3803         (mips_extra_live_on_entry): Fix reversed test.  Don't make $25
3804         live for TARGET_ABSOLUTE_ABICALLS.
3805         * config/mips/mips.h (TARGET_ABSOLUTE_ABICALLS): New macro.
3806         (ASM_SPEC): Pass down -mshared and -mno-shared.
3807         (MIPS_CALL): New macro.
3808         * config/mips/netbsd.h (TARGET_OS_CPP_BUILTINS): Remove __ABICALLS__
3809         definition.
3810         * doc/invoke.texi (-mabicalls): Update documentation.
3811         (-mshared): Document.
3812
3813 2006-03-21  Steve Ellcey  <sje@cup.hp.com>
3814
3815         * config/ia64/unwind-hpux.c: New file.
3816         * config/ia64/t-hpux: Add unwind-hpux.c to libgcc.
3817
3818 2006-03-21  Steve Ellcey  <sje@cup.hp.com>
3819
3820         PR libgomp/26384
3821         * config/pa/pa64-hpux.h (LIB_SPEC): Fix for -mt and -pthread options.
3822
3823 2006-03-21  Jeff Law  <law@redhat.com>
3824
3825         * tree-vrp.c (extract_range_from_unary_expr): Derive ranges for
3826         type conversions of a VR_VARYING source to a wider type.
3827
3828 2006-03-21  Eric Botcazou  <ebotcazou@libertysurf.fr>
3829
3830         * config.gcc (i[34567]86-*-solaris2*): Add config/sol2-10.h to
3831         tm_file on Solaris 10 and later.
3832         (sparc64-*-solaris2*): Likewise.
3833         (sparc-*-solaris2*): Likewise.
3834         * config/sol26.h: Rename to config/sol2-6.h.
3835         * config/sol2-10.h: New file.
3836
3837 2006-03-21  Andrew Pinski  <pinskia@physics.uc.edu>
3838
3839         PR tree-opt/26781
3840         * tree-ssa-pre.c (create_component_ref_by_pieces):
3841         Handle STRING_CST.
3842
3843 2006-03-21  Jakub Jelinek  <jakub@redhat.com>
3844
3845         PR c++/26690
3846         * tree.c (get_callee_fndecl): If CALL is error_mark_node,
3847         return it immediately.
3848
3849 2006-03-21  Michael Matz  <matz@suse.de>
3850
3851         * genautomata.c (<struct state>, num_out_arcs, presence_signature):
3852         New members.
3853         (remove_arc, add_arc): Update num_out_arcs member.
3854         (set_out_arc_insns_equiv_num): Returns nothing instead of number
3855         of out arcs.
3856         (cache_presence): New function.
3857         (compare_states_for_equiv): New function.
3858         (state_is_differed): Don't take number of outargs, adjust callers.
3859         Use new invariant for speeding up.
3860         (init_equiv_class): Create initial classes based on sorted
3861         input.
3862         (partition_equiv_class): Don't track out_arcs_num.
3863         (evaluate_equiv_classes): Call cache_presence on all states and
3864         sort them.
3865
3866 2006-03-21  Bernd Schmidt  <bernd.schmidt@analog.com>
3867
3868         * config/bfin/bfin-protos.h (bfin_dsp_memref_p): Declare.
3869         * config/bfin/bfin.c (bfin_dsp_memref_p): New function.
3870         (bfin_valid_reg_p): Test for pseudos explicitly and use only
3871         REGNO_MODE_CODE_OK_FOR_BASE_P.  New args MODE and OUTER_CODE; all
3872         callers changed.
3873         * config/bfin/bfin.h (PREG_P): Use P_REGNO_P.
3874         (IREG_P, P_REGNO_P, I_REGNO_P): New macros.
3875         (enum reg_class, REG_CLASS_CONTENTS): Add IPREGS.
3876         (BASE_REG_CLASS, REG_OK_FOR_BASE_P, REG_OK_FOR_INDEX_P,
3877         REGNO_OK_FOR_BASE_STRICT_P, REGNO_OK_FOR_BASE_NONSTRICT_P): Delete
3878         macros.
3879         (IREG_POSSIBLE_P, MODE_CODE_BASE_REG_CLASS,
3880         REGNO_MODE_CODE_OK_FOR_BASE_P): New macros.
3881         (REGNO_REG_CLASS): ARGP is in PREGS.
3882         * config/bfin/bfin.md (movhi_insn): Allow for addresses containing
3883         IREGS.
3884         (zero_extendhisi2, extendhisi2): Likewise; changed to define_and_split
3885         to deal with those addresses.
3886         * addresses.h: New file.
3887         * caller-save.c: Include "addresses.h".
3888         (init_caller_save): Use new base_reg_class function.
3889         * rtl-factoring.c: Include "addresses.h".
3890         (recompute_gain_for_pattern_seq): Use new function ok_for_base_p_1.
3891         * recog.c: Include "addresses.h".
3892         (preprocess_constraints): Use new base_reg_class function.
3893         * regrename.c: Include "addresses.h".
3894         (scan_rtx_address): Use new regno_ok_for_base_p and base_reg_class
3895         functions.  Keep track of a new var INDEX_CODE to compute valid
3896         classes.
3897         (replace_oldest_value_addr): Likewise.
3898         (replace_oldest_value_mem): Use base_reg_class.
3899         * reload.c: Include "addresses.h".
3900         (REGNO_MODE_OK_FOR_BASE_P, REG_MODE_OK_FOR_BASE_P): Delete macros.
3901         (find_reloads): Use new base_reg_class function.
3902         (find_reloads_address): Likewise; also use regno_ok_for_base_p.
3903         (find_reloads_address_1): Likewise. New args OUTER_CODE and INDEX_CODE;
3904         all callers and prototype changed.
3905         * reload1.c: Include "addresses.h".
3906         (maybe_fix_stack_asms): Use base_reg_class.
3907         * regclass.c: Include "addresses.h".
3908         (ok_for_index_p_nonstrict, ok_for_base_p_nonstrict): New functions.
3909         (init_reg_autoinc): Use new base_reg_class function.
3910         (record_reg_classes): Likewise.
3911         (record_address_regs): Delete arg CLASS; add args CONTEXT, MODE,
3912         OUTER_CODE and INDEX_CODE.  All callers and prototype changed.
3913         Use new args to compute necessary class.
3914
3915         * Makefile.in (regclass.o, reload.o, reload1.o, caller-save.o, recog.o,
3916         regrename.o, rtl-factoring.o): Update dependencies.
3917         * doc/tm.texi (MODE_CODE_BASE_REG_CLASS): Document.
3918         (REGNO_MODE_CODE_OK_FOR_BASE_P): Likewise.
3919         (REG_OK_FOR_BASE_P, REG_MODE_OK_FOR_BASE_P, REG_MODE_OK_FOR_REG_BASE_P,
3920         REG_OK_FOR_INDEX_P): Delete documentation.
3921
3922 2006-03-21  Alexey Starovoytov  <alexey.starovoytov@sun.com>
3923
3924         * config.gcc (sparc-*-solaris2*): Change the default CPU setting
3925         from V7 to V9 for Solaris 7 and above.
3926
3927 2006-03-21  Toon Moene  <toon@moene.indiv.nluug.nl>
3928
3929         * doc/invoke.texi: Document new flag -fargument-noalias-anything.
3930         * tree-ssa-alias.c (may_alias_p): If flag_argument_noalias > 2,
3931         argument pointers may not alias any other storage.
3932         * common.opt: Define option -fargument-noalias-anything.
3933         * tree-ssa-structalias.c (intra_create_variable_infos): Fortran
3934         alias semantics is specified by flag_argument_noalias > 2.
3935
3936 2006-03-20  Jeff Law  <law@redhat.com>
3937
3938         * tree-pass.h (pass_phi_only_copy_prop): Delete.
3939         (pass_phi_only_cprop): Declare.
3940         * passes.c (init_optimization_passes): Replace pass_phi_only_copy_prop
3941         with phi_only_cprop
3942         * tree-ssa-dom.c (degenerate_phi_result): New function.
3943         (remove_stmt_or_phi, get_lhs_or_phi_result): Likewise.
3944         (get_rhs_or_phi_arg, propagate_rhs_into_lhs): Likewise.
3945         (eliminate_const_or_copy, eliminate_degenerate_phis_1): Likewise.
3946         (eliminate_degenerate_phis): Likewise.
3947         (pass_phi_only_cprop): New pass descriptor.
3948         * tree-ssa-copy.c (init_copy_prop): Lose PHIS_ONLY argument and
3949         support code.  Callers updated.
3950         (execute_copy_prop, do_copy_prop): Likewise and corresponding changes.
3951         (store_copy_prop): Likewise.
3952         (do_phi_only_copy_prop, pass_phi_only_copy_prop): Remove.
3953
3954 2006-03-20  Jason Merrill  <jason@redhat.com>
3955
3956         PR c++/21764
3957         * c-pragma.c (visstack): Move out of handle_pragma_visibility.
3958         (push_visibility, pop_visibility): Likewise.
3959         * c-pragma.h: Declare them.
3960
3961 2006-03-20  Kaz Kojima  <kkojima@gcc.gnu.org>
3962
3963         * config/sh/sh.c (untangle_mova): Initialize n_addr and n_target.
3964
3965         * config/sh/sh.c (find_regmode_weight): Change the type of the first
3966         parameter and use get_ebb_head_tail.
3967         (sh_md_init_global): Adjust uses of find_regmode_weight.
3968
3969 2006-03-20  Steven Bosscher  <stevenb.gcc@gmail.com>
3970
3971         * function.h (struct function) <x_tail_recursion_reentry>:
3972         Rename to x_stack_check_probe_note.
3973         (tail_recursion_reentry): Rename to stack_check_probe_note.
3974         * function.c: Replace tail_recursion_reentry with
3975         stack_check_probe_note everywhere.
3976         (expand_function_start): Only emit a note for
3977         stack_check_probe_note with -fstack-protect.
3978         * stmt.c (expand_case): Don't emit NOTE_INSN_DELETED notes.
3979
3980         * emit-rtl.c (remove_unnecessary_notes): Remove.
3981         (pass_remove_unnecessary_notes): Remove.
3982         * rtl.h (remove_unnecessary_notes): Remove prototype.
3983         * final.c (final_start_function): Don't call remove_unnecessary_notes.
3984         * tree-pass.h (pass_remove_unnecessary_notes): Remove.
3985         * passes.c (pass_remove_unnecessary_notes): Don't run it.
3986
3987 2006-03-20  Andrew Pinski  <pinskia@physics.uc.edu>
3988
3989         PR tree-opt/26629
3990         * tree-ssa-pre (phi_translate): Handle ARRAY_REF's operands.
3991         (valid_in_set): Handle ARRAY_REF.
3992         Change "if min_variant or VH" to asserts.
3993         (create_component_ref_by_pieces): Handle ARRAY_REF.
3994         (create_expression_by_pieces): Likewise.
3995         (can_PRE_operation): ARRAY_REFs can now be PRE'd.
3996
3997 2006-03-20  David Edelsohn  <edelsohn@gnu.org>
3998
3999         * genpreds.c (write_insn_extra_address_constraint): Argument `c'
4000         is operand of switch, not str[0].
4001
4002 2006-03-20  Alan Modra  <amodra@bigpond.net.au>
4003
4004         * config/rs6000/rs6000.c (rs6000_handle_option): Use
4005         TARGET_NO_FP_IN_TOC inside #ifdef TARGET_USES_SYSV4_OPT too.
4006
4007 2006-03-19  David Edelsohn  <edelsohn@gnu.org>
4008
4009         * genpreds.c (write_tm_preds_h): Add semicolon and newline at
4010         end of insn_extra_address_constraint declaration.
4011
4012 2006-03-19  David Edelsohn  <edelsohn@gnu.org>
4013
4014         * config/rs6000/rs6000.opt (no-fp-in-toc): Use Var not Mask.
4015         (no-sum-in-toc): Same.
4016         * config/rs6000/rs6000.c (rs6000_handle_option): Use new
4017         variables.
4018         * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): Set
4019         NO_FP_IN_TOC for -fPIC instead of mask.
4020
4021         * config/rs6000/t-aix43 (T_ADAFLAGS): Delete.
4022         (BOOT_LDFLAGS): Delete.
4023         (LDFLAGS): Delete.
4024         * config/rs6000/t-aix52: Same.
4025
4026         * config/rs6000/rs6000.md (store_multiple_power): Delete.
4027         (stmsi[345678]_power): New.
4028
4029 2006-03-17  Steve Ellcey  <sje@cup.hp.com>
4030
4031         * config/ia64/ia64.opt: Add empty line to end of file.
4032
4033 2006-03-17  Richard Guenther  <rguenther@suse.de>
4034
4035         PR middle-end/26721
4036         * builtins.c (get_pointer_alignment): For component style references
4037         adjust alignment to the component type alignment.  Make sure
4038         to adjust alignment for component access of constants.
4039
4040 2006-03-17  David Edelsohn  <edelsohn@gnu.org>
4041
4042         * config/rs6000/rs6000.md (strlensi): Emit barrier after
4043         unconditional jump.
4044
4045 2006-03-17  Paul Brook  <paul@codesourcery.com>
4046
4047         * doc/install.texi: Docuemnt --with-mode.
4048         * config.gcc: Add --with-mode for arm*-*-*.
4049         * config/arm/arm.h (OPTION_DEFAULT_SPECS): Add "mode".
4050
4051 2006-03-17  J"orn Rennecke <joern.rennecke@st.com>
4052
4053         * sh.c (max_labelno_before_reorg): New variable.
4054         (sh_reorg): Initialize it.
4055         (find_barrier): Check max_labelno_before_reorg before using
4056         label_to_alignment.  Take length of explicit alignment insns
4057         into account.  When seeing a UNSPECV_CONST_END, return it.
4058
4059         * sh.c (fixup_mova): Set mode of affected label to QImode.
4060         (untangle_mova): New function.
4061         (find_barrier): Use it.  Check mode of label before decrementing
4062         num_mova.
4063         (sh_reorg): Likewise.
4064         Set mode of all insns back to VOIDmode.
4065
4066         * sh.c (MOVA_LABELREF): New macro.
4067         (mova_p, fixup_mova, sh_reorg): Use it.
4068         (find_barrier, sh_reorg): Don't count num_mova back to 0 unless
4069         ADDR_DIFF_VEC matches mova.
4070
4071 2006-03-17  Steven Bosscher  <stevenb.gcc@gmail.com>
4072
4073         * dwarf2asm.c (dw2_asm_output_offset): Mark 'base' argument
4074         with ATTRIBUTE_UNUSED.
4075
4076 2006-03-17  Alexandre Oliva  <aoliva@redhat.com>
4077
4078         * dwarf2out.c (dwarf2out_stack_adjust): Always track the stack
4079         pointer, instead of assuming it is possible to derive the
4080         correct args size from a call insn.
4081
4082 2006-03-16  Jan-Benedict Glaw  <jbglaw@lug-owl.de>
4083
4084         * rtl.h (CONST_INT_P): Define.
4085         * config/vax/vax.c (print_operand_address): Use CONST_INT_P()
4086         instead of GET_CODE(x) == CONST_INT.
4087         (vax_rtx_costs): Likewise.
4088         (vax_output_int_move): Likewise.
4089         (vax_output_int_add): Likewise.
4090         (legitimate_constant_address_p): Likewise.
4091         (index_term_p): Likewise.
4092         * config/vax/vax.h (PRINT_OPERAND): Likewise.
4093         * config/vax/vax.md (and<mode>3): Likewise.
4094         (ashrsi3): Likewise.
4095         (extv): Likewise.
4096         (movstricthi): Likewise.
4097         (movstrictqi): Likewise.
4098         (rotrsi3): Likewise.
4099         (five unnamed insns): Likewise.
4100
4101 2006-03-16  Geoffrey Keating  <geoffk@apple.com>
4102
4103         * doc/tm.texi (SDB and DWARF): Add extra parameter to
4104         ASM_OUTPUT_DWARF_OFFSET.  Use @var to indicate metavariables.
4105         * dwarf2asm.h (dw2_asm_output_offset): Add section parameter.
4106         * dwarf2asm.c (dw2_asm_output_offset): Add base section parameter.
4107         Pass to ASM_OUTPUT_DWARF_OFFSET.
4108         * dwarf2out.c (debug_frame_section): New.
4109         (output_call_frame_info): Use debug_frame_section.  Pass it to
4110         dw2_asm_output_offset.
4111         (output_die): Pass appropriate section to dw2_asm_output_offset.
4112         (output_compilation_unit_header): Likewise.
4113         (output_pubnames): Likewise.
4114         (output_aranges): Likewise.
4115         (enum dw_val_class): Break dw_val_class_lbl_offset into
4116         dw_val_class_lineptr and dw_val_class_macptr.
4117         (add_AT_lbl_offset): Delete.
4118         (add_AT_lineptr): New.
4119         (add_AT_macptr): New.
4120         (AT_lbl): Expect a lineptr or macptr.
4121         (print_die): Handle dw_val_class_lineptr and dw_val_class_macptr.
4122         (attr_checksum): Likewise.
4123         (same_dw_val_p): Likewise.
4124         (size_of_die): Likewise.
4125         (value_format): Likewise.
4126         (output_die): Likewise.
4127         (dwarf2out_finish): Call add_AT_lineptr and add_AT_macptr instead of
4128         add_AT_lbl_offset.
4129         * config/i386/cygming.h (ASM_OUTPUT_DWARF_OFFSET): Add extra parameter.
4130         * config/i386/i386.c (x86_file_start): Call darwin_file_start.
4131         * config/darwin-protos.h (darwin_file_start): New.
4132         (darwin_asm_output_dwarf_offset): New.
4133         * config/ia64/ia64.h (ASM_OUTPUT_DWARF_OFFSET): Add extra parameter.
4134         * config/rs6000/rs6000.c (rs6000_darwin_file_start): Call
4135         darwin_file_start.
4136         * config/darwin.c (darwin_emit_unwind_label): Don't output label
4137         if not EH section; simplify.
4138         (darwin_file_start): New.
4139         (darwin_asm_output_dwarf_offset): New.
4140         * config/darwin.h (DEBUG_FRAME_SECTION): In __DWARF segment,
4141         mark as 'debug'.
4142         (DEBUG_INFO_SECTION): Likewise.
4143         (DEBUG_ABBREV_SECTION): Likewise.
4144         (DEBUG_ARANGES_SECTION): Likewise.
4145         (DEBUG_MACINFO_SECTION): Likewise.
4146         (DEBUG_LINE_SECTION): Likewise.
4147         (DEBUG_LOC_SECTION): Likewise.
4148         (DEBUG_PUBNAMES_SECTION): Likewise.
4149         (DEBUG_STR_SECTION): Likewise.
4150         (DEBUG_RANGES_SECTION): Likewise.
4151         (FRAME_BEGIN_LABEL): Must start with 'L' in debug section.
4152         (ASM_OUTPUT_DWARF_OFFSET): New.
4153
4154 2006-03-16  Joseph S. Myers  <joseph@codesourcery.com>
4155
4156         * config.gcc (tm_defines): Always add to previous value rather
4157         than replacing it.
4158
4159 2006-03-16  Richard Sandiford  <richard@codesourcery.com>
4160
4161         * config/mips/predicates.md (splittable_const_int_operand): New,
4162         split from move_operand.
4163         (splittable_symbolic_operand): New.
4164         (move_operand): Add commentary.  Use splittable_const_int_operand.
4165         Inline mips_atomic_symbolic_constant_p.
4166         * config/mips/mips.md: Add combine splitters for handling moves
4167         of splittable_const_int_operands and splittable_symbolic_operands.
4168         * config/mips/mips-protos.h (mips_atomic_symbolic_constant_p): Delete.
4169         (mips_split_symbol): Declare.
4170         (mips_move_integer): Declare.
4171         * config/mips/mips.c (mips_split_p): Make global.
4172         (TARGET_MIN_ANCHOR_OFFSET): Override default.
4173         (TARGET_MAX_ANCHOR_OFFSET): Likewise.
4174         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Likewise.
4175         (TARGET_USE_ANCHORS_FOR_SYMBOL_P): Likewise.
4176         (mips_offset_within_object_p): Handle block symbols.
4177         (mips_atomic_symbolic_constant_p): Delete.
4178         (mips_cannot_force_const_mem): Return false for constants that
4179         mips_legitimize_move can handle.
4180         (mips_use_blocks_for_constant_p): New function.
4181         (mips_split_symbol): Make global.
4182         (mips_move_integer): Likewise.  Add a temporary register argument.
4183         (mips_legitimize_const_move): Use splittable_const_int_operand and
4184         splittable_symbolic_operand.
4185         (mips_use_anchors_for_symbol_p): New function.
4186         * config/mips/mips.h: Protect externs with !USED_FOR_TARGET.
4187         (mips_split_p): Declare.
4188
4189 2006-03-16  Richard Sandiford  <richard@codesourcery.com>
4190
4191         * config.gcc (mips64*-*-linux*): Keep existing tm_defines.
4192         (mips*-*-linux*): Likewise.
4193
4194 2006-03-16  Roger Sayle  <roger@eyesopen.com>
4195             Daniel Speyer  <dspeyer@wam.umd.edu>
4196
4197         PR middle-end/18259
4198         * tree-dump.c (dump_real): New function.
4199         (dequeue_and_dump) <REAL_CST>: Use it to dump FP constants.
4200         * Makefile.in (REAL_H): New macro for dependencies on real.h.
4201         (tree-dump.o): Add $(REAL_H) to the dependencies.
4202
4203 2006-03-16  Roger Sayle  <roger@eyesopen.com>
4204
4205         PR middle-end/21781
4206         * real.c (real_from_string): If the mantissa is zero, don't bother
4207         parsing the exponent as the result should always be zero.
4208
4209 2006-03-16  Andreas Krebbel  <krebbel1@de.ibm.com>
4210
4211         * simplify-rtx.c (simplify_plus_minus): Simplify within CONST terms.
4212
4213 2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>
4214
4215         * config/ia64/ia64.c (stops_p): Added explicit initialization.
4216         (ia64_first_cycle_multipass_dfa_lookahead_guard_spec,
4217         ia64_h_i_d_extended, ia64_set_sched_flags, ia64_speculate_insn,
4218         ia64_needs_block_p, ia64_gen_check, ia64_sched_init_global,
4219         ia64_sched_finish_global): New static functions to implement
4220         hooks from gcc_target.sched.
4221         (spec_check_no, max_uid, pending_data_specs): New static variables.
4222         (ia64_mode_to_int, ia64_gen_spec_insn, ia64_spec_check_p,
4223         ia64_spec_check_src_p): New static functions.
4224         (ia64_adjust_cost): Renamed to ia64_adjust_cost_2.
4225         (TARGET_SCHED_ADJUST_COST): Removed.
4226         (TARGET_SCHED_ADJUST_COST_2, TARGET_SCHED_INIT_GLOBAL,
4227         TARGET_SCHED_FINISH_GLOBAL, TARGET_SCHED_H_I_D_EXTENDED,
4228         TARGET_SCHED_SPECULATE_INSN, TARGET_SCHED_NEEDS_BLOCK_P,
4229         TARGET_SCHED_GEN_CHECK,
4230         TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD_SPEC,
4231         TARGET_SCHED_SET_SCHED_FLAGS): New macros.
4232         (update_set_flags, group_barrier_needed, set_src_needs_barrier):
4233         Fixed to handle speculation checks.
4234         (rtx_needs_barrier): Fixed to handle speculative loads and
4235         their checks.
4236         (ia64_variable_issue): Added code to count speculative loads and their
4237         checks.
4238         (ia64_first_cycle_multipass_dfa_lookahead_guard): Fixed to handle
4239         speculative loads.
4240         (enum SPEC_MODES, enum SPEC_GEN_LD_MAP, SPEC_GEN_CHECK_OFFSET):
4241         New enumerations.
4242         (SPEC_GEN_EXTEND_OFFSET, SPEC_N, SPEC_GEN_CHECK_MUTATION_OFFSET):
4243         New constants.
4244         (ia64_ld_address_bypass_p): Fixed to handle speculative loads.
4245         (ia64_reorg): Reset stops_p to NULL after it is freed.
4246         * config/ia64/ia64.md (UNSPEC_LDA, UNSPEC_LDS, UNSPEC_LDSA,
4247         UNSPEC_LDCCLR, UNSPEC_CHKACLR, UNSPEC_CHKS): New constants.
4248         (itanium_class): chk_s renamed to chk_s_i.  New constants: chk_s_f,
4249         chk_a.
4250         (data_speculative, control_speculative, check_load): New attributes.
4251         (mov<mode>_advanced, mov<mode>_speculative,
4252         mov<mode>_speculative_advanced, zero_extend<mode>di2_advanced,
4253         zero_extend<mode>di2_speculative,
4254         zero_extend<mode>di2_speculative_advanced): New patterns for
4255         data and control speculative loads.
4256         (mov<mode>_clr, zero_extend<mode>di2_clr): New patterns for
4257         check loads.
4258         (advanced_load_check_clr_<mode>, speculation_check_<mode>):
4259         New pattern for data and control speculation checks.
4260         (MODE, MODE_FOR_EXTEND, output_a, output_s, output_sa, output_c_clr,
4261         ld_reg_constr, ldc_reg_constr, chk_reg_constr, mem_constr,
4262         reg_pred_prefix, ld_class, chka_class, chks_class, attr_yes):
4263         Auxiliary definitions for the patterns.
4264         * config/ia64/itanium1.md (1_fldc, 1_fldpc, 1_ldc, 1_chk_s_f, 1_chk_a,
4265         1b_fldc, 1b_fldpc, 1b_ldc, 1b_chk_s_f, 1b_chk_a): New resource
4266         constraints.
4267         (1_fld, 1_fldp, 1_ld, 1b_fld, 1b_fldp, 1b_ld): Add a condition
4268         for speculation.
4269         (1_chk_s, 1b_chk_s): Renamed to 1_chk_s_i, 1b_chk_s_i.
4270         * config/ia64/itanium2.md (2_flda, 2_fldc, 2_fldpc, 2_ldc, 2_chk_s_f,
4271         2_chk_a, 2b_flda, 2b_fldc, 2b_fldpc, 2b_ldc, 2b_chk_s_f, 2b_chk_a):
4272         New resource constraints.
4273         (2_fld, 2_fldp, 2_ld, 2b_fld, 2b_fldp, 2b_ld): Add a condition
4274         for speculation.
4275         (2_chk_s, 2b_chk_s): Renamed to 2_chk_s_i, 2b_chk_s_i.
4276         * config/ia64/ia64.opt (msched-br-data-spec, msched-ar-data-spec,
4277         msched-control-spec, msched-br-in-data-spec, msched-ar-in-data-spec,
4278         msched-in-control-spec, msched-ldc, msched-control-ldc,
4279         msched-spec-verbose, msched-prefer-non-data-spec-insns,
4280         msched-prefer-non-control-spec-insns,
4281         msched-count-spec-in-critical-path): New flags to tune speculative
4282         scheduling.
4283         * doc/invoke.texi (msched-br-data-spec, msched-ar-data-spec,
4284         msched-control-spec, msched-br-in-data-spec, msched-ar-in-data-spec,
4285         msched-in-control-spec, msched-ldc, msched-control-ldc,
4286         msched-spec-verbose, msched-prefer-non-data-spec-insns,
4287         msched-prefer-non-control-spec-insns,
4288         msched-count-spec-in-critical-path): Document new flags.
4289
4290 2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>
4291
4292         * target.h (struct spec_info_def): New opaque declaration.
4293         (struct gcc_target.sched): New fields: adjust_cost_2, h_i_d_extended,
4294         speculate_insn, needs_block_p, gen_check,
4295         first_cycle_multipass_dfa_lookahead_guard_spec, set_sched_flags.
4296         * target-def.h (TARGET_SCHED_ADJUST_COST_2,
4297         TARGET_SCHED_H_I_D_EXTENDED, TARGET_SCHED_SPECULATE_INSN,
4298         TARGET_SCHED_NEEDS_BLOCK_P, TARGET_SCHED_GEN_CHECK,
4299         TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD_SPEC,
4300         TARGET_SCHED_SET_SCHED_FLAGS): New macros to initialize fields in
4301         gcc_target.sched.
4302         (TARGET_SCHED): Use new macros.
4303         * rtl.h (copy_DEPS_LIST_list): New prototype.
4304         * sched-int.h (struct sched_info): Change signature of new_ready field,
4305         adjust all initializations. New fields: add_remove_insn,
4306         begin_schedule_ready, add_block, advance_target_bb, fix_recovery_cfg,
4307         region_head_or_leaf_p.
4308         (struct spec_info_def): New structure declaration.
4309         (spec_info_t): New typedef.
4310         (struct haifa_insn_data): New fields: todo_spec, done_spec, check_spec,
4311         recovery_block, orig_pat.
4312         (glat_start, glat_end): New variables declaraions.
4313         (TODO_SPEC, DONE_SPEC, CHECK_SPEC, RECOVERY_BLOCK, ORIG_PAT):
4314         New access macros.
4315         (enum SCHED_FLAGS): New constants: SCHED_RGN, SCHED_EBB,
4316         DETACH_LIFE_INFO, USE_GLAT.
4317         (enum SPEC_SCHED_FLAGS): New enumeration.
4318         (NOTE_NOTE_BB_P): New macro.
4319         (extend_dependency_caches, xrecalloc, unlink_bb_notes, add_block,
4320         attach_life_info, debug_spec_status, check_reg_live): New functions.
4321         (get_block_head_tail): Change signature to get_ebb_head_tail, adjust
4322         all uses in ddg.c, modulo-sched.c, haifa-sched.c, sched-rgn.c,
4323         sched-ebb.c
4324         (get_dep_weak, ds_merge): Prototype functions from sched-deps.c .
4325         * ddg.c (get_block_head_tail): Adjust all uses.
4326         * modulo-sched.c (get_block_head_tail): Adjust all uses.
4327         (sms_sched_info): Initialize new fields.
4328         (contributes_to_priority): Removed.
4329         * haifa-sched.c (params.h): New include.
4330         (get_block_head_tail): Adjust all uses.
4331         (ISSUE_POINTS): New macro.
4332         (glat_start, glat_end): New global variables.
4333         (spec_info_var, spec_info, added_recovery_block_p, nr_begin_data,
4334         nr_be_in_data, nr_begin_control, nr_be_in_control, bb_header,
4335         old_last_basic_block, before_recovery, current_sched_info_var,
4336         rgn_n_insns, luid): New static variables.
4337         (insn_cost1): New function.  Move logic from insn_cost to here.
4338         (find_insn_reg_weight1): New function.  Move logic from
4339         find_insn_reg_weight to here.
4340         (reemit_notes, move_insn, max_issue): Change signature.
4341         (move_insn1): Removed.
4342         (extend_h_i_d, extend_ready, extend_global, extend_all, init_h_i_d,
4343         extend_bb): New static functions to support extension of scheduler's
4344         data structures.
4345         (generate_recovery_code, process_insn_depend_be_in_spec,
4346         begin_speculative_block, add_to_speculative_block,
4347         init_before_recovery, create_recovery_block, create_check_block_twin,
4348         fix_recovery_deps): New static functions to support
4349         generation of recovery code.
4350         (fix_jump_move, find_fallthru_edge, dump_new_block_header,
4351         restore_bb_notes, move_block_after_check, move_succs): New static
4352         functions to support ebb scheduling.
4353         (init_glat, init_glat1, attach_life_info1, free_glat): New static
4354         functions to support handling of register live information.
4355         (associate_line_notes_with_blocks, change_pattern, speculate_insn,
4356         sched_remove_insn, clear_priorities, calc_priorities, bb_note,
4357         add_jump_dependencies): New static functions.
4358         (check_cfg, has_edge_p, check_sched_flags): New static functions for
4359         consistancy checking.
4360         (debug_spec_status): New function to call from debugger.
4361         (priority): Added code to handle speculation checks.
4362         (rank_for_schedule): Added code to distinguish speculative instructions.
4363         (schedule_insn): Added code to handle speculation checks.
4364         (unlink_other_notes, rm_line_notes, restore_line_notes, rm_other_notes):
4365         Fixed to handle ebbs.
4366         (move_insn): Added code to handle ebb scheduling.
4367         (max_issue): Added code to use ISSUE_POINTS of instructions.
4368         (choose_ready): Added code to choose between speculative and
4369         non-speculative instructions.
4370         (schedule_block): Added code to handle ebb scheduling and scheduling of
4371         speculative instructions.
4372         (sched_init): Initialize new variables.
4373         (sched_finish): Free new variables.  Print statistics.
4374         (try_ready): Added code to handle speculative instructions.
4375         * lists.c (copy_DEPS_LIST_list): New function.
4376         * sched-deps.c (extend_dependency_caches): New function.  Move logic
4377         from create_dependency_caches to here.
4378         (get_dep_weak, ds_merge): Make global.
4379         * genattr.c (main): Code to output prototype for
4380         dfa_clear_single_insn_cache.
4381         * genautomata.c (DFA_CLEAR_SINGLE_INSN_CACHE_FUNC_NAME): New macros.
4382         (output_dfa_clean_insn_cache_func): Code to output
4383         dfa_clear_single_insn_cache function.
4384         * sched-ebb.c (target_n_insns): Remove.  Adjust all users to use
4385         n_insns.
4386         (can_schedule_ready_p, fix_basic_block_boundaries, add_missing_bbs):
4387         Removed.
4388         (n_insns, dont_calc_deps, ebb_head, ebb_tail, last_bb):
4389         New static variables.
4390         (begin_schedule_ready, add_remove_insn, add_block1, advance_target_bb,
4391         fix_recovery_cfg, ebb_head_or_leaf_p): Implement hooks from
4392         struct sched_info.
4393         (ebb_sched_info): Initialize new fields.
4394         (get_block_head_tail): Adjust all uses.
4395         (compute_jump_reg_dependencies): Fixed to use glat_start.
4396         (schedule_ebb): Code to remove unreachable last block.
4397         (schedule_ebbs): Added code to update register live information.
4398         * sched-rgn.c (region_sched_info): Initialize new fields.
4399         (get_block_head_tail): Adjust all uses.
4400         (last_was_jump): Removed.  Adjust users.
4401         (begin_schedule_ready, add_remove_insn, insn_points, extend_regions,
4402         add_block1, fix_recovery_cfg, advance_target_bb, region_head_or_leaf_p):
4403         Implement new hooks.
4404         (check_dead_notes1): New static function.
4405         (struct region): New fields: dont_calc_deps, has_real_ebb.
4406         (RGN_DONT_CALC_DEPS, RGN_HAS_REAL_EBB): New access macros.
4407         (BB_TO_BLOCK): Fixed to handle EBBs.
4408         (EBB_FIRST_BB, EBB_LAST_BB): New macros.
4409         (ebb_head): New static variable.
4410         (debug_regions, contributes_to_priority): Fixed to handle EBBs.
4411         (find_single_block_regions, find_rgns, find_more_rgns): Initialize
4412         new fields.
4413         (compute_dom_prob_ps): New assertion.
4414         (check_live_1, update_live_1): Fixed to work with glat_start instead of
4415         global_live_at_start.
4416         (init_ready_list): New assertions.
4417         (can_schedule_ready_p): Split update code to begin_schedule_ready.
4418         (new_ready): Add support for BEGIN_CONTROL speculation.
4419         (schedule_insns): Fixed code that updates register live information
4420         to handle EBBs.
4421         (schedule_region): Fixed to handle EBBs.
4422         (init_regions): Use extend_regions and check_dead_notes1.
4423         * params.def (PARAM_MAX_SCHED_INSN_CONFLICT_DELAY,
4424         PARAM_SCHED_SPEC_PROB_CUTOFF): New parameters.
4425         * doc/tm.texi (TARGET_SCHED_ADJUST_COST_2, TARGET_SCHED_H_I_D_EXTENDED,
4426         TARGET_SCHED_SPECULATE_INSN, TARGET_SCHED_NEEDS_BLOCK_P,
4427         TARGET_SCHED_GEN_CHECK,
4428         TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD_SPEC,
4429         TARGET_SCHED_SET_SCHED_FLAGS): Document.
4430         * doc/invoke.texi (max-sched-insn-conflict-delay,
4431         sched-spec-prob-cutoff): Document.
4432
4433 2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>
4434
4435         * sched-int.h (struct haifa_insn_data): New fields: resolved_deps,
4436         inter_tick, queue_index.
4437         (struct sched_info): Change signature of init_ready_list field.
4438         Adjust all initializations.
4439         (RESOLVED_DEPS): New access macro.
4440         (ready_add): Remove prototype.
4441         (try_ready): Add prototype.
4442         * sched-rgn.c (init_ready_list): Use try_ready.
4443         (schedule_region): Initialize
4444         current_sched_info->{sched_max_insns_priority, queue_must_finish_empty}.
4445         * sched-ebb.c (new_ready): Remove.  Adjust ebb_sched_info.
4446         (init_ready_list): Use try_ready.
4447         (schedule_ebb): Initialize current_sched_info->sched_max_insns_priority.
4448         * lists.c (remove_list_elem): Remove `static'.
4449         (remove_free_INSN_LIST_elem): New function.
4450         * rtl.h (remove_list_elem, remove_free_INSN_LIST_elem): Add prototypes.
4451         * haifa-sched.c (INTER_TICK, QUEUE_INDEX): New macros.
4452         (INVALID_TICK, MIN_TICK, QUEUE_SCHEDULED, QUEUE_NOWHERE, QUEUE_READY):
4453         New constants.
4454         (readyp): New variable.
4455         (queue_remove, ready_remove_insn, fix_inter_tick, fix_tick_ready,
4456         change_queue_index, resolve_dep): New static functions.
4457         (try_ready): New function.  Adjust callers in sched-rgn.c and
4458         sched-ebb.c to use it instead of ready_add.
4459         (clock_var): Move at the begining of file.
4460         (rank_for_schedule): Fix typo.
4461         (queue_insn): Add assertion.  Handle QUEUE_INDEX.
4462         (ready_lastpos): Enforce assertion.
4463         (ready_add): Make it static.  Handle QUEUE_INDEX.  Add new argument,
4464         update all callers.
4465         (ready_remove_first, ready_remove): Handle QUEUE_INDEX.
4466         (schedule_insn): Rewrite to use try_ready and resolve_dep.
4467         (queue_to_ready): Use free_INSN_LIST_list.
4468         (early_queue_to_ready): Fix typo.
4469         (schedule_block): Init readyp.  Move init_ready_list call after the
4470         initialization of clock_var.  Fix error in rejecting insn by
4471         targetm.sched.dfa_new_cycle.  Add call to fix_inter_tick.  Remove code
4472         that previously corrected INSN_TICKs.  Add code for handling
4473         QUEUE_INDEX.
4474         (set_priorities): Fix typo.
4475         (sched_init): Initialize INSN_TICK, INTER_TICK and QUEUE_INDEX.
4476         Clarify comment and code that keeps current_sched_info->next_tail
4477         non-null.
4478
4479 2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>
4480
4481         * sched-rgn.c (extend_rgns): New static function.
4482         (find_rgns): Use it.
4483         (gather_region_statistics, print_region_statistics): New static
4484         functions.
4485         * params.def (PARAM_MAX_SCHED_EXTEND_REGIONS_ITERS): New parameter.
4486         * doc/invoke.texi (max-sched-extend-regions-iters): Document.
4487
4488 2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>
4489             Andrey Belevantsev <abel@ispras.ru>
4490
4491         * ddg.c (build_intra_loop_deps): Adjust add_forward_dependence call.
4492         * lists.c (unused_deps_list): New variable.
4493         (free_list): Add assertions to verify the proper distinguishing
4494         between INSN_LISTs and DEPS_LISTs.
4495         (find_list_elem, remove_list_elem, remove_list_node): New static
4496         functions.
4497         (alloc_DEPS_LIST, free_DEPS_LIST, free_DEPS_LIST_node,
4498         remove_free_INSN_LIST_elem, remove_free_DEPS_LIST_elem,
4499         remove_free_INSN_LIST_node, remove_free_DEPS_LIST_node): New functions.
4500         (alloc_INSN_LIST): Assert that the list we're working on is indeed
4501         an INSN_LIST.
4502         (free_INSN_LIST_node): Likewise.
4503         * modulo-sched.c (current_sched_info): Initialize flags field.
4504         * reg-notes.def: Exchange DEP_ANTI and DEP_OUTPUT.
4505         * rtl.def (DEPS_LIST): Define.
4506         * rtl.h: Declare new functions from lists.c.
4507         * sched-deps.c (spec_dependency_cache): New static variable.
4508         (maybe_add_or_update_back_dep_1, add_back_dep): New static functions.
4509         (add_dependence): Change return type to void.  Move the logic to ...
4510         (add_or_update_back_dep_1): ... here.  Handle speculative dependencies.
4511         (delete_all_dependences): Add comment about forward_dependency_cache.
4512         Handle spec_dependency_cache.  Handle DEPS_LISTs.
4513         (fixup_sched_groups): Clarify the change of priority of output
4514         and anti dependencies.
4515         (sched_analyze_2): Adjust add_dependence calls to create data
4516         speculative dependence.
4517         (add_forward_dependence): Renamed to add_forw_dep, change prototype.
4518         Adjust all callers.  Handle DEPS_LISTS.
4519         (compute_forward_dependences): Use add_forw_dep.  Sort LOG_LINKs in
4520         presence of speculation.
4521         (init_dependency_caches, free_dependency_caches):
4522         Handle spec_dependency_cache.
4523         (adjust_add_sorted_back_dep, adjust_back_add_forw_dep, delete_forw_dep,
4524         estimate_dep_weak, get_dep_weak, ds_merge, check_dep_status):
4525         New static functions.
4526         (add_or_update_back_dep, add_or_update_back_forw_dep,
4527         add_back_forw_dep, delete_back_forw_dep): New functions.
4528         * sched-int.h (ds_t, dw_t): New typedefs.
4529         (struct sched_info): Add new field flags.
4530         (struct haifa_insn_data): Add new bitfield has_internal_dep.
4531         Prototype new sched-deps.c functions.
4532         (HAS_INTERNAL_DEP, DEP_STATUS): New access macros.
4533         (BITS_PER_DEP_STATUS, BITS_PER_DEP_WEAK, DEP_WEAK_MASK, MAX_DEP_WEAK,
4534         MIN_DEP_WEAK, NO_DEP_WEAK, UNCERTAIN_DEP_WEAK, BEGIN_DATA, BE_IN_DATA,
4535         BEGIN_CONTROL, BE_IN_CONTROL, BEGIN_SPEC, DATA_SPEC, CONTROL_SPEC,
4536         SPECULATIVE, BE_IN_SPEC, FIRST_SPEC_TYPE, LAST_SPEC_TYPE,
4537         SPEC_TYPE_SHIFT, DEP_TRUE, DEP_OUTPUT, DEP_ANTI, DEP_TYPES, HARD_DEP):
4538         New constants.
4539         (enum SPEC_TYPES_OFFSETS, enum DEPS_ADJUST_RESULT, enum SCHED_FLAGS):
4540         New enums.
4541         * sched-rgn.c (current_sched_info): Initialize flags field.
4542         (schedule_insns): Initialize current_sched_info before the sched_init
4543         call.
4544         * sched-ebb.c (current_sched_info): Initialize flags field.
4545         (add_deps_for_risky_insns): Use control_flow_insn_p instead of JUMP_P.
4546         Call add_or_update_back_dep instead of add_dependence.
4547         Create control speculative dependencies.
4548         (schedule_insns): Initialize current_sched_info before the sched_init
4549         call.
4550
4551 2006-03-16  Kaz Kojima  <kkojima@gcc.gnu.org>
4552
4553         * config/sh/linux-unwind.h (shmedia_fallback_frame_state): Set
4554         fs->signal_frame.
4555         (sh_fallback_frame_state): Likewise.
4556
4557 2006-03-15  Geoffrey Keating  <geoffk@apple.com>
4558
4559         * config.gcc (*-*-darwin*): Don't build crt2.o for all Darwin ports.
4560         Do switch on default_use_cxa_atexit.
4561         (powerpc*-*-darwin*): Build crt2.o on powerpc.
4562         * config/darwin-crt3.o: New.
4563         * config/darwin.h (LINK_SPEC): If -shared-libgcc, make linker default
4564         to 10.3.  Pass '-multiply_defined suppress' if crt3.o is in use.
4565         (STARTFILE_SPEC): Add crt3.o when -shared-libgcc and appropriate
4566         OS version.
4567         * config/rs6000/t-darwin: Move crt2.o building to here.
4568         * config/rs6000/darwin.h (C_COMMON_OVERRIDE_OPTIONS): Update
4569         Mac OS version for using __cxa_get_exception_ptr.  Don't test versions
4570         of __cxa_atexit.
4571
4572 2006-03-15  Jan-Benedict Glaw  <jbglaw@lug-owl.de>
4573
4574         * config/vax/vax.c (nonindexed_address_p): Change logical negation
4575         from '! xxx' to '!xxx' for coding-style conformance.
4576         * config/vax/vax.h (PCC_BITFIELD_TYPE_MATTERS): Likewise.
4577         (EXTRA_CONSTRAINT): Likewise.
4578         * config/vax/vax.md (four unnamed insns): Likewise.
4579
4580 2006-03-15  Paul Brook  <paul@codesourcery.com>
4581
4582         * config/arm/arm.c (minipool_pad): New.
4583         (add_minipool_forward_ref): Include pool alignment padding in address
4584         calculation.
4585         (push_minipool_fix): Set minipool_pad.
4586         (minipool_pad): Ditto.
4587
4588 2006-03-15  Jan-Benedict Glaw  <jbglaw@lug-owl.de>
4589
4590         * config/vax/vax.c (split_quadword_operands): Use MEM_P()
4591         instead of GET_CODE() == MEM and REG_P() instead of
4592         GET_CODE() == REG.
4593         (print_operand_address): Likewise.
4594         (vax_address_cost): Likewise.
4595         (vax_rtx_costs): Likewise.
4596         (vax_notice_update_cc): Likewise.
4597         (vax_output_int_add): Likewise.
4598         (INDEX_REGISTER_P): Likewise.
4599         (BASE_REGISTER_P): Likewise.
4600         (nonindexed_address_p): Likewise.
4601         (vax_mode_dependent_address_p): Likewise.
4602         * config/vax/vax.h (EXTRA_CONSTRAINT): Likewise.
4603         (PRINT_OPERAND): Likewise.
4604         * config/vax/vax.md (ashlsi3): Likewise.
4605         (ashlsi3): Likewise.
4606         (some more unnamed insns): Likewise.
4607
4608 2006-03-15  Kazu Hirata  <kazu@codesourcery.com>
4609
4610         * tree-ssa-dce.c (EXECUTE_IF_CONTROL_DEPENDENT): Make it an
4611         iterator-style macro.
4612         (mark_control_dependent_edges_necessary): Update the use of
4613         EXECUTE_IF_CONTROL_DEPENDENT.
4614
4615 2006-03-15  J"orn Rennecke <joern.rennecke@st.com>
4616
4617         * config/sh/predicates.md (cache_address_operand): Special.
4618         (ua_address_operand): Likewise.
4619
4620 2006-03-15  Zdenek Dvorak <dvorakz@suse.cz>
4621
4622         * haifa-sched.c (unlink_other_notes, reemit_notes): Do not handle
4623         loop notes.
4624         * sched-deps.c (sched_analyze_insn, sched_analyze): Ditto.
4625
4626 2006-03-15  Andreas Schwab  <schwab@suse.de>
4627
4628         * gensupport.c (identify_predicable_attribute): Don't free p_false
4629         when it is still in use.
4630
4631 2006-03-15  Eric Botcazou  <ebotcazou@libertysurf.fr>
4632
4633         * config.gcc (default with_cpu setting) <sparc*-*-*>: Do not modify
4634         the default setting here.
4635
4636 2006-03-14  Steven Bosscher  <stevenb.gcc@gmail.com>
4637
4638         * tree-pass.h (pass_cfg): Remove.
4639         * alias.c (rest_of_handle_cfg, pass_cfg): Remove.
4640         * passes.c (pass_cfg): Don't run it.
4641
4642 2006-03-14  Kazu Hirata  <kazu@codesourcery.com>
4643
4644         * Makefile.in (reg-stack.o): Don't depend on gt-reg-stack.h.
4645         * reg-stack.c (stack_regs_mentioned_data): Change the type to
4646         VEC(char,heap) *.
4647         (stack_regs_mentioned): Update the uses of
4648         stack_regs_mentioned_data.  Don't access the array beyond its
4649         end.
4650         (reg_to_stack): Update the uses of stack_regs_mentioned_data.
4651         Don't include gt-reg-stack.h.
4652
4653         * config/bfin/bfin.h (UNALIGNED_WORD_ASM_OP): Remove.
4654         * system.h (UNALIGNED_WORD_ASM_OP): Poison.
4655
4656         * combine.c (UWIDE_SHIFT_LEFT_BY_BITS_PER_WORD): Remove.
4657
4658         PR middle-end/26684
4659         * reg-stack.c (stack_regs_mentioned_data): Put it undef #ifdef
4660         STACK_REGS.
4661
4662 2006-03-14  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
4663
4664         * pa/pa32-linux.h (CRT_CALL_STATIC_FUNCTION): Fix typo.
4665
4666 2006-03-14  Richard Guenther  <rguenther@suse.de>
4667
4668         PR tree-optimization/26672
4669         * tree-ssa-propagate.c (set_rhs): Don't walk DEFs if not in
4670         SSA form.
4671
4672 2006-03-14  Richard Guenther  <rguenther@suse.de>
4673
4674         PR tree-optimization/26667
4675         * ipa-inline.c (cgraph_check_inline_limits): Walk the correct
4676         node for the callees.  Always allow inlining if it will shrink
4677         the function size.
4678
4679 2006-03-14  Richard Guenther  <rguenther@suse.de>
4680
4681         PR middle-end/26659
4682         * builtins.c (get_pointer_alignment): Prefer alignment
4683         information from decls over that from types.
4684
4685 2006-03-14  Andrew Pinski  <pinskia@physics.uc.edu>
4686
4687         PR target/26657
4688         * config/darwin.h (LINK_COMMAND_SPEC): Handle -fopenmp.
4689
4690 2006-03-14  Joseph S. Myers  <joseph@codesourcery.com>
4691
4692         * config/rs6000/rs6000.opt (mdlmzb): New option.
4693         (msched-prolog, msched-epilog): Use Var not Mask.
4694         * doc/invoke.texi (-mdlmzb): Document.
4695         * config/rs6000/rs6000.c (TARGET_DEFAULT_TARGET_FLAGS): Remove
4696         MASK_SCHED_PROLOG.
4697         (rs6000_override_options): Enable -mdlmzb for 405 and 440.
4698         * config/rs6000/rs6000.md: Add dlmzb support for 405 and 440.
4699
4700 2006-03-13  Uttam Pawar  <uttamp@us.ibm.com>
4701
4702         PR rtl-optimization/25739
4703         * bt-load.c (augment_live_range): Free tos pointer.
4704
4705         * gensupport.c (identify_predicable_attribute): Free
4706         p_false pointer.
4707         * gcov.c (create_file_names): Free name pointer.
4708
4709 2006-03-13  Roger Sayle  <roger@eyesopen.com>
4710
4711         PR middle-end/26557
4712         * stmt.c (emit_case_nodes): Handle the case where the index is a
4713         CONST_INT, where the comparison mode is specified by the index type.
4714
4715 2006-03-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
4716
4717         * pa/pa32-linux.h (CRT_CALL_STATIC_FUNCTION): Define when CRTSTUFFS_O
4718         is defined.
4719
4720 2006-03-13  Richard Sandiford  <richard@codesourcery.com>
4721
4722         * config/mips/mips.md (*branch_fp): Use %Z2 for the condition.
4723         (*branch_fp_inverted): Likewise.
4724
4725 2006-03-13  Jakub Jelinek  <jakub@redhat.com>
4726
4727         PR middle-end/25989
4728         * omp-low.c (expand_omp_for_generic): Mark istart0
4729         and iend0 as addressable.
4730
4731 2006-03-13  Jie Zhang  <jie.zhang@analog.com>
4732
4733         * config/bfin/uclinux.h: Define _GNU_SOURCE in CPLUSPLUS_CPP_SPEC.
4734
4735 2006-03-13  Jeff Law  <law@redhat.com>
4736
4737         * tree-vrp.c (stmt_interesting_for_vrp): Some statements with
4738         virtual operands are interesting.
4739         (vrp_visit_stmt): Corresponding changes.
4740
4741 2006-03-13  Bernd Schmidt  <bernd.schmidt@analog.com>
4742
4743         * config/bfin/lib1funcs.asm (___umodsi3): Use stack to save contents
4744         of RETS.
4745         * config/bfin/bfin.h (TARGET_CPU_CPP_BUILTINS): If
4746         TARGET_ID_SHARED_LIBRARY, define __ID_SHARED_LIB__.
4747         * config/bfin/crti.S: Use it instead of __PIC__.
4748         * config/bfin/crtn.S: Likewise.
4749
4750         * config/bfin/bfin.md (call_value_symbol, sibcall_value_symbol,
4751         call_symbol, sibcall_symbol): Disallow if TARGET_ID_SHARED_LIBRARY,
4752         not if flag_pic.
4753         Lose 'G' modifier for call operand.
4754         * config/bfin/bfin.c (print_operand) <case SYMBOL_REF>: Don't
4755         recognize 'G' modifier.
4756
4757 2006-03-13  Eric Botcazou  <ebotcazou@adacore.com>
4758
4759         PR middle-end/18859
4760         * gimplify.c (gimplify_switch_expr): Discard empty ranges.
4761         * stmt.c (expand_case): Likewise.
4762
4763 2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>
4764
4765         PR rtl-optimization/26254
4766         * loop-invariant.c (seq_insns_valid_p): New function.
4767         (move_invariant_reg): Only emit new code if it is valid.
4768
4769 2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>
4770
4771         * cfgrtl.c (last_loop_beg_note, back_edge_of_syntactic_loop_p):
4772         Removed.
4773         (force_nonfallthru_and_redirect): Do not use last_loop_beg_note.
4774         (rtl_split_edge): Do not use back_edge_of_syntactic_loop_p.
4775         (commit_one_edge_insertion): Do not look for loop notes.
4776
4777 2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>
4778
4779         * jump.c (follow_jumps): Do not check for loop notes.  Move check for
4780         flag_test_coverage out of loop.
4781
4782 2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>
4783
4784         * final.c (shorten_branches): Remove outdated comment, and turn
4785         the if branch that guards it to continue.
4786
4787 2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>
4788
4789         * cfgloop.c (flow_loop_dump): Do not dump loop->invalid field.
4790         * cfgloop.h (struct loop): Remove unused fields.
4791
4792 2006-03-13  Kazu Hirata  <kazu@codesourcery.com>
4793
4794         * doc/invoke.texi (-fdump-rtl-loop): Remove.
4795         (-dL, -fdump-rtl-loop2): Update the dump file names
4796
4797         * doc/invoke.texi: Update dump file names.
4798
4799 2006-03-12  Steven Bosscher  <stevenb.gcc@gmail.com>
4800
4801         * predict.c (estimate_probability): Remove.
4802         * profile.c (rest_of_handle_branch_prob, pass_branch_prob): Remove.
4803         * basic-block.h (estimate_probability): Remove prototype.
4804         * passes.c (finish_optimization_passes): Dump branch prediction or
4805         profiling heuristics to the .profile tree dump.
4806         (init_optimization_passes): Unqueue pass_branch_prob.
4807
4808         * doc/invoke.texi (-fdump-rtl-bp): Remove.
4809
4810 2006-03-11  Steven Bosscher  <stevenb.gcc@gmail.com>
4811
4812         * rtl.def (LABEL_REF): Remove the field for LABEL_NEXTREF.
4813         * rtl.h (LABEL_NEXTREF): Remove field accessor.
4814
4815 2006-03-11  Eric Botcazou  <ebotcazou@adacore.com>
4816
4817         * function.h (frame_offset_overflow): Declare.
4818         * function.c (frame_offset_overflow): New function.
4819         (assign_stack_local_1): Call it to detect that the offset overflows.
4820         * cfgexpand.c (alloc_stack_frame_space): Likewise.
4821
4822 2006-03-11  Steven Bosscher  <stevenb.gcc@gmail.com>
4823
4824         * config/sh/sh.c: Include alloc-pool.h.
4825         (label_ref_list_pool): New alloc pool.
4826         (label_ref_list_t): New type for lists of labels.
4827         (struct pool_node): Make wend a label_ref_list_t.
4828         (add_constant): Use the new type, eradicate LABEL_NEXTREF
4829         references.
4830         (dump_table): Likewise.
4831         (sh_reorg): Set up the alloc pool before using add_constant and
4832         dump_table, and destroy it when finishing.
4833
4834 2006-03-11  Richard Sandiford  <richard@codesourcery.com>
4835
4836         * config/mips/mips.c: Remove redundant comment.
4837
4838 2006-03-10  Jason Merrill  <jason@redhat.com>
4839
4840         PR c/26004
4841         * gimplify.c (gimplify_modify_expr_rhs): Don't do return slot opt if
4842         the target was declared 'register'.
4843
4844 2006-03-10  Adam Nemet  <anemet@caviumnetworks.com>
4845
4846         * genpreds.c (write_insn_constraint_len): Change definition of
4847         insn_constraint_len to return size_t to match the declaration.
4848
4849 2006-03-10  DJ Delorie  <dj@redhat.com>
4850
4851         * config/m32c/m32c.c (m32c_const_ok_for_constraint_p): Bit numbers
4852         start at zero.
4853         (m32c_expand_insv): Fix test for an AND mask.
4854
4855 2006-03-10  Richard Guenther  <rguenther@suse.de>
4856
4857         PR middle-end/26565
4858         * builtins.c (get_pointer_alignment): Handle component
4859         references for field alignment.
4860
4861 2006-03-10  J"orn Rennecke <joern.rennecke@st.com>
4862
4863         * config.gcc (sh*-superh-elf, sh*elf (newlib)): Use newlib.h
4864         when building with libgloss.
4865         (sh*elf): Implement --without-fp option.
4866         (sh64-superh-linux*): Don't multilib.
4867
4868 2006-03-10  J"orn Rennecke <joern.rennecke@st.com>
4869
4870         * struct-equiv.c (rtx_equiv_p): Fix POST_MODIFY case.
4871
4872 2006-03-09  Andrew Pinski  <pinskia@physics.uc.edu>
4873
4874         * tree-ssa-phiopt.c (tree_ssa_phiopt): Add cfgchanged variable.
4875         Set it when one of the replacement functions returned true.
4876         Return TODO_cleanup_cfg if cfgchanged is true.
4877         (pass_phiopt) <todo_flags_finish>: Remove TODO_cleanup_cfg.
4878
4879 2006-03-09  Adam Nemet  <anemet@caviumnetworks.com>
4880
4881         * combine.c (simplify_shift_const_1): Use gen_lowpart_or_truncate
4882         instead of gen_lowpart.
4883
4884 2006-03-09  Richard Sandiford  <richard@codesourcery.com>
4885
4886         * config/mips/mips-protos.h (mips_output_conditional_branch): Change
4887         interface.
4888         (mips_output_order_conditional_branch): Declare.
4889         * config/mips/mips.h (MIPS_BRANCH): New macro.
4890         * config/mips/mips.c (gen_conditional_branch): Use VOIDmode
4891         for the comparison.  Use gen_condjump.
4892         (mips_output_conditional_branch): Rework interface to take the
4893         asm templates for a direct branch and the inverse of a direct branch.
4894         (mips_output_order_conditional_branch): New function.
4895         (mips_builtin_branch_and_move): New function.
4896         (mips_expand_builtin_compare): Use it.  Use VOIDmode for the
4897         branch condition.  Use gen_single_cc as the condition for
4898         __builtin_mips_upper_* or __builtin_mips_lower_*.
4899         (mips_expand_builtin_bposge): Use mips_builtin_branch_and_move.
4900         Use VOIDmode for the branch condition.
4901         * config/mips/predicates.md (order_operator): New predicate.
4902         * config/mips/mips.md (UNSPEC_SINGLE_CC): New constant.
4903         (branch_fp): Rename to...
4904         (*branch_fp): ...this.  Remove mode from comparison operator.
4905         Use new mips_output_conditional_branch interface.
4906         (branch_fp_inverted): Rename to...
4907         (*branch_fp_inverted): ...this and update as for *branch_fp.
4908         (*branch_zero<mode>): Rename to...
4909         (*branch_order<mode>): ...this.  Remove mode from comparison operator.
4910         Use mips_output_order_conditional_branch.  Only accept ordered
4911         comparisons.
4912         (*branch_zero<mode>_inverted): Rename to...
4913         (*branch_order<mode>_inverted): ...this and update as for
4914         *branch_order<mode>.
4915         (*branch_equality<mode>): Accept zero as the second operand to
4916         the equality operator.  Use the new mips_output_conditional_branch
4917         interface.
4918         (*branch_equality<mode>_inverted): Likewise.
4919         (condjump): New expander.
4920         * config/mips/mips-dsp.md (mips_bposge): Remove mode from comparison
4921         operator.
4922         * config/mips/mips-ps-3d.md (bc1any4t, bc1any4f): Likewise.
4923         (bc1any2t, bc1any2f): Likewise.
4924         (single_cc): New expander.
4925         (*branch_upper_lower, *branch_upper_lower_inverted): New patterns.
4926
4927 2006-03-09  Richard Sandiford  <richard@codesourcery.com>
4928
4929         * doc/md.texi: Update documentation of MIPS constraints.
4930         * config/mips/constraints.md: New file.
4931         * config/mips/mips.md: Include it.
4932         * config/mips/mips.c (mips_char_to_class): Delete.
4933         (override_options): Don't initialize mips_char_to_class.
4934         * config/mips/mips.h (mips_char_to_class): Delete.
4935         (REG_CLASS_FROM_LETTER): Delete.
4936         (CONST_OK_FOR_LETTER_P): Delete.
4937         (CONST_DOUBLE_OK_FOR_LETTER_P): Delete.
4938         (EXTRA_CONSTRAINT_Y): Delete.
4939         (EXTRA_CONSTRAINT_STR): Delete.
4940         (CONSTRAINT_LEN): Delete.
4941         (EXTRA_MEMORY_CONSTRAINT): Delete.
4942
4943 2006-03-09  Diego Novillo  <dnovillo@redhat.com>
4944
4945         * tree-cfg.c (move_block_to_fn): Remove the statements from the
4946         original fn's eh regions.
4947
4948 2006-03-09  Eric Botcazou  <ebotcazou@adacore.com>
4949
4950         * fold-const.c (build_range_check): Make sure to use a valid type to
4951         apply the "(c>=low) && (c<=high) into (c-low>=0) && (c-low<=high-low)"
4952         transformation.
4953
4954         (range_predecessor): New static function.
4955         (range_successor): Likewise.
4956         (merge_ranges): Use them to compute predecessors and successors of
4957         range bounds.
4958
4959 2006-03-09  Roger Sayle  <roger@eyesopen.com>
4960
4961         PR middle-end/26561
4962         * fold-const.c (fold_div_compare): When optimizing X/C1 op C2 as
4963         X op C3, consider whether C3 overflows towards +Inf or -Inf.
4964
4965 2006-03-08  DJ Delorie  <dj@redhat.com>
4966
4967         * config/m32c/addsub.md (addqi3): Disparage a0/a1.
4968         (addpsi3): Expand to include memory operands.  Remove
4969         reload-specific splits.
4970         * config/m32c/bitops.md (bset_qi, bset_hi, bclr_qi): New.
4971         (andqi3_16, andhi3_16, iorqi3_16, iorhi3_16): New.
4972         (andqi3_24, andhi3_24, iorqi3_24, iorhi3_24): New.
4973         (andqi3, andhi3, iorqi3, iorhi3): Convert to expanders.
4974         (shift1_qi, shift1_hi, insv): New.
4975         * config/m32c/cond.md (cbranchqi4, cbranchhi4): Remove.
4976         (cbranch<mode>4, stzx_16, stzx_24_<mode>, stzx_reversed,
4977         cmp<mode>, b<code>, s<code>, s<code>_24, movqicc, movhicc,
4978         cond_to_int): New.
4979         * config/m32c/m32c-protos.h: Update as needed.
4980         * config/m32c/m32c.c (m32c_reg_class_from_constraint): Don't
4981         default the Rcr, Rcl, Raw, and Ral constraints.  Add Ra0 and Ra1.
4982         Fail for unrecognized R* constraints.
4983         (m32c_cannot_change_mode_class): Be more picky about pseudos.
4984         (m32c_const_ok_for_constraint_p): Add Imb, Imw, and I00.
4985         (m32c_extra_constraint_p2): Allow (mem (plus (plus fb int) int)).
4986         Add Sp constraint.
4987         (m32c_init_libfuncs): New.
4988         (m32c_legitimate_address_p): Add debug wrapper.
4989         (m32c_rtx_costs): New.
4990         (m32c_address_cost): New.
4991         (conversions): Add 'B' prefix.
4992         (m32c_print_operand): 'h' and 'H' pick lower and upper halves of
4993         operands, or word regnames for QI operands.  'B' prints bit
4994         position.
4995         (m32c_expand_setmemhi): New.
4996         (m32c_expand_movmemhi): New.
4997         (m32c_expand_movstr): New.
4998         (m32c_expand_cmpstr): New.
4999         (m32c_prepare_shift): Shift counts are limited to 16 bits at a time.
5000         (m32c_expand_neg_mulpsi3): Handle non-ints.
5001         (m32c_cmp_flg_0): New.
5002         (m32c_expand_movcc): New.
5003         (m32c_expand_insv): New.
5004         (m32c_scc_pattern): New.
5005         * config/m32c/m32c.h (reg classes): Add AO_REGS and A1_REGS.  Take
5006         a0/a1 out of SIregs.
5007         (STORE_FLAG_VALUE): New.
5008         * config/m32c/m32c.md: Add unspecs for string moves.  Define various mode and
5009         code macros.
5010         (no_insn): New.
5011         * config/m32c/mov.md: Make constraints more liberal.
5012         (zero_extendqihi2): Optimize r0/r1 case.
5013         * config/m32c/muldiv.md (mulpsi3): Check for intvals.
5014         * config/m32c/predicates.md (m32c_any_operand): New.
5015         (m32c_nonimmediate_operand): New.
5016         (m32c_hl_operand): New.
5017         (m32c_r3_operand): New.
5018         (ap_operand): New.
5019         (ma_operand): New.
5020         (memsym_operand): New.
5021         (memimmed_operand): New.
5022         (a_qi_operand): New.
5023         (m32c_eqne_operator): New.
5024         (m32c_1bit8_operand): New.
5025         (m32c_1bit16_operand): New.
5026         (m32c_1mask8_operand): New.
5027         (m32c_1mask16_operand): New.
5028         * config/m32c/blkmov.md: New file.
5029         * config/m32c/t-m32c (MD_FILES): Add blkmov.
5030
5031 2006-03-08  Andreas Tobler  <a.tobler@schweiz.ch>
5032
5033         * dwarf2out.c (expand_builtin_dwarf_sp_column): Make dwarf_regnum
5034         unsigned to fix signed/unsigned comparison issue in
5035         DWARF2_FRAME_REG_OUT.
5036         (expand_builtin_init_dwarf_reg_sizes): Make i unsigned to fix signed/
5037         unsigned comparison issue in DWARF2_FRAME_REG_OUT.
5038
5039         * tree-ssa-operands.c (finalize_ssa_def_ops): Move the declaration
5040         of ptr into the ENABLE_CHECKING section.
5041
5042 2006-03-08  Jeff Law  <law@redhat.com>
5043
5044         * tree-vrp.c (infer_value_range): Only count pointer uses
5045         and dereferences if -fdelete-null-pointer-checks is enabled.
5046
5047         * tree-vrp.c (find_assert_locations): Infer value ranges for
5048         single use pointers, but do not create ASSERT_EXPRs for them.
5049         When a non-null range is inferred for a pointer, backwards
5050         propagate that range to other equivalent pointers through the
5051         use-def chain.
5052
5053 2006-03-08  Paolo Bonzini  <bonzini@gnu.org>
5054
5055         PR bootstrap/26500
5056         * Makefile.in (dvi, html, install-info): Invoke the corresponding
5057         language hook targets.
5058         * ada/Make-lang.in, cp/Make-lang.in, objc/Make-lang.in,
5059         objcp/Make-lang.in: Create stub rules for dvi, html, install-info
5060         if language hook targets were missing.
5061
5062 2006-03-07  Zdenek Dvorak <dvorakz@suse.cz>
5063
5064         * tree-ssa-opfinalize.h: Removed.
5065         * Makefile.in (tree-ssa-operands.o): Remove tree-ssa-opfinalize.h
5066         dependency.
5067         * tree-ssa-operands.c: Do not include tree-ssa-opfinalize.h.
5068         (ALLOC_OPTYPE, APPEND_OP_AFTER, MOVE_HEAD_AFTER, MOVE_HEAD_TO_FREELIST,
5069         INITIALIZE_USE, add_def_op, add_use_op, add_vuse_op, add_maydef_op,
5070         add_mustdef_op, finalize_ssa_def_ops, finalize_ssa_use_ops,
5071         finalize_ssa_v_may_def_ops, finalize_ssa_vuse_ops,
5072         finalize_ssa_v_must_def_ops): New.
5073
5074 2006-03-07  Kenneth Zadeck <zadeck@naturalbridge.com>
5075
5076         * df-scan.c: (df_bb_refs_record): Fix obvious typo with wrong
5077         block as parameter.
5078
5079 2006-03-07  Geoffrey Keating  <geoffk@apple.com>
5080
5081         * varasm.c (assemble_end_function): Say that 'fnname' is unused.
5082
5083         * config/i386/i386.c (ix86_delegitimize_address): Handle Darwin
5084         addresses with offsets; reorganize.
5085
5086         * dwarf2out.c (DWARF2_FRAME_REG_OUT): Move up in file.
5087         (expand_builtin_dwarf_sp_column): Call DWARF2_FRAME_REG_OUT.
5088         (expand_builtin_init_dwarf_reg_sizes): Likewise.
5089
5090 2006-03-08  David Billinghurst <David.Billinghurst@riotinto.com>
5091
5092         PR target/26588
5093         * config/i386/cygwin.h (GOMP_SELF_SPECS): Define.
5094
5095 2006-03-08  Ben Elliston  <bje@au.ibm.com>
5096
5097         * config/fp-bit.h (CMPtype): Typedef to a word mode integer.
5098
5099 2006-03-07  Aldy Hernandez  <aldyh@redhat.com>
5100
5101         PR gomp/26238
5102         * doc/passes.texi (Tree-SSA passes): Document omp lowering and
5103         expansion.
5104
5105 2006-03-07  Richard Guenther  <rguenther@suse.de>
5106
5107         PR tree-optimization/26587
5108         * tree-ssa-structalias.c (handle_ptr_arith): Handle MINUS_EXPR.
5109
5110 2006-03-07  Richard Sandiford  <richard@codesourcery.com>
5111
5112         * varasm.c (assemble_variable): Fix setting of DECL_IN_TEXT_SECTION.
5113
5114 2006-03-07  Richard Sandiford  <richard@codesourcery.com>
5115
5116         * hooks.c (hook_bool_mode_rtx_true): New function.
5117         * hooks.h (hook_bool_mode_rtx_true): Declare.
5118         * toplev.c (compile_file): Call output_shared_constant_pool.
5119         * varasm.c (shared_constant_pool): New variable.
5120         (assemble_start_function, assemble_end_function): Remove arguments
5121         from call to output_constant_pool.
5122         (create_constant_pool): New function, split out from...
5123         (init_varasm_status): ...here.
5124         (force_const_mem): Choose between the shared and per-function constant
5125         pools.  Set current_function_uses_const_pool when reusing old entries
5126         as well as when creating new ones.
5127         (mark_constant): Ignore data argument.
5128         (mark_constants): Remove pool argument.
5129         (mark_constant_pool): Likewise.  Use current_function_uses_const_pool
5130         to decide whether the function uses a constant pool.
5131         (output_constant_pool_contents): New function, split out from...
5132         (output_constant_pool): ...here.
5133         (output_shared_constant_pool): New function.
5134         (init_varasm_once): Initialize shared_constant_pool.
5135         * output.h (output_constant_pool): Delete.
5136         (output_shared_constant_pool): Declare.
5137         * config/s390/s390-protos.h (s390_output_constant_pool): Delete.
5138         * config/i386/i386.c (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Override.
5139
5140 2006-03-06  Nick Clifton  <nickc@redhat.com>
5141
5142         * config/m32r/m32r.h (OPTIMIZATION_OPTIONS): Remove reference to
5143         flag_strength_reduce.
5144
5145 2006-03-06  Ben Elliston  <bje@au.ibm.com>
5146
5147         * config.gcc: Add t-dfprules to $tmake_file for i*86-*-linux* and
5148         x86_64-*-linux* configurations.
5149
5150         * config/dfp-bit.h (CMPtype): Typedef to a word mode integer.
5151         (LIBGCC2_WORDS_BIG_ENDIAN): Define.
5152
5153 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
5154
5155         * tree-ssa-threadupdate.c (rediscover_loops_after_threading):
5156         Remove.
5157         * basic-block.h: Remove the extern for
5158         rediscover_loops_after_threading.
5159
5160         * cfgloop.c (cancel_loop): Make it static.
5161         * cfgloop.h: Remove the prototype for cancel_loop.
5162
5163         * flow.c (recompute_reg_usage): Make it static.
5164         * rtl.h: Remove the prototype for recompute_reg_usage.
5165
5166         * function.c (use_return_register): Make it static.
5167         * function.h: Remove the prototype.
5168
5169 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
5170
5171         * recog.c (volatile_mem_p, validate_change_maybe_volatile):
5172         Remove.
5173         * recog.h: Remove the prototype for
5174         validate_change_maybe_volatile.
5175
5176 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
5177
5178         * rtlanal.c (replace_reg): Remove.
5179         * rtl.h: Remove the prototype for replace_reg.
5180
5181 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
5182
5183         * regclass.c (reg_scan_update): Remove.
5184         (reg_scan_mark_refs): Remove the last argument.
5185         * rtl.h: Remove the prototype for reg_scan_update.
5186
5187 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
5188
5189         * builtins.c, c-pragma.h, c-typeck.c, cgraph.c, cgraphunit.c,
5190         combine.c, common.opt, config/dfp-bit.c, config/i386/i386.c,
5191         config/m68k/m68k.c, config/m68k/m68k.md, config/mt/mt.c,
5192         config/mt/mt.h, config/s390/s390.md, df-core.c, df-problems.c,
5193         df-scan.c, df.h, diagnostic.c, expr.c, function.h, gimplify.c,
5194         loop-invariant.c, omp-low.c, opts.c, passes.c,
5195         rtl-factoring.c, rtlanal.c, struct-equiv.c, tree-cfgcleanup.c,
5196         tree-ssa-loop-niter.c, tree-ssa-loop-prefetch.c,
5197         tree-ssa-structalias.c, tree-ssa-threadedge.c,
5198         tree-ssa-threadupdate.c, tree-vect-patterns.c,
5199         tree-vect-transform.c, tree-vectorizer.h, tree-vrp.c,
5200         unwind-dw2.c: Fix comment typos.  Follow spelling conventions.
5201
5202 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
5203
5204         * dwarf2out.c (dwarf2out_add_library_unit_info): Remove.
5205         * dwarf2out.h: Remove the prototype for
5206         dwarf2out_add_library_unit_info.
5207
5208 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
5209
5210         * tree.c (add_var_to_bind_expr): Remove.
5211         * tree.h: Remove the prototype for add_var_to_bind_expr.
5212
5213 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
5214
5215         * regclass.c (n_non_fixed_regs): Remove.
5216         (init_reg_sets_1, globalize_reg): Remove all uses of
5217         n_non_fixed_regs.
5218         * hard-reg-set.h: Remove the extern for n_non_fixed_regs.
5219
5220 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
5221
5222         * rtlanal.c (insns_safe_to_move_p): Remove.
5223         * rtl.h: Remove the prototype for insns_safe_to_move_p.
5224
5225 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
5226
5227         * expmed.c (expand_mult_add): Remove.
5228         * expr.h: Remove the prototype for expand_mult_add.
5229
5230 2006-03-04  Jakub Jelinek  <jakub@redhat.com>
5231
5232         * unwind-dw2.h (_Unwind_FrameState): Add REG_SAVED_VAL_OFFSET
5233         and REG_SAVED_VAL_EXP constants.
5234         * unwind-dw2.c (struct _Unwind_Context): Add by_value array.
5235         (_Unwind_GetGR, _Unwind_SetGR, _Unwind_GetGRPtr, _Unwind_SetGRPtr):
5236         Handle regs stored by value.
5237         (_Unwind_SetGRValue, _Unwind_GRByValue): New functions.
5238         (execute_cfa_program): Handle DW_CFA_val_offset,
5239         DW_CFA_val_offset_sf and DW_CFA_val_expression.
5240         (uw_update_context_1): Handle REG_SAVED_REG with regs stored by
5241         value specially.  Handle REG_SAVED_VAL_OFFSET and REG_SAVED_VAL_EXP.
5242         (uw_install_context_1): Handle target regs stored by value.
5243
5244 2006-03-03  Daniel Berlin  <dberlin@dberlin.org>
5245
5246         * tree-sra.c (tree_sra): Return todoflags;
5247         (generate_one_element): Set TODO_update_smt_usage if needed.
5248         (pass_sra): Remove TODO_update_smt_usage.
5249         * tree-ssa-forwprop.c (forward_propagate_addr_expr): Add some
5250         parameter.
5251         (tree_ssa_forward_propagate_single_use_vars): Return
5252         TODO_update_smt_usage if we need to update SMT usage.
5253         (pass_forwprop): Remove TODO_update_smt_usage.
5254
5255 2006-03-03  Diego Novillo  <dnovillo@redhat.com>
5256
5257         * tree-ssa-operands.c: Tidy whitespace.  Fix spelling.
5258         (correct_use_link): Remove reference to get_stmt_operands.
5259         (update_stmt_operands): Likewise.
5260         (get_modify_expr_operands): New function factored out of
5261         parse_ssa_operands and get_expr_operands.
5262         Try to create V_MUST_DEFs for LHS by default.
5263         (get_expr_operands) <case MODIFY_EXPR>: Call
5264         get_modify_expr_operands.
5265         <case ARRAY_RANGE_REF>: Handle together with ARRAY_REF.
5266         <case BIT_FIELD_REF>: Clear opf_kill_def from FLAGS.
5267         (parse_ssa_operands) <case MODIFY_EXPR>: Call
5268         get_modify_expr_operands.
5269
5270 2006-03-03  Kazu Hirata  <kazu@codesourcery.com>
5271
5272         * tree-dfa.c (referenced_var_lookup_if_exists): Remove.
5273         * tree-flow.h: Remove the prototype for
5274         referenced_var_lookup_if_exists.
5275
5276 2006-03-03  Steve Ellcey  <sje@cup.hp.com>
5277
5278         PR rtl-optimization/26345
5279         PR target/19061
5280         * config/ia64/predicates.md (basereg_operand): Don't look in subregs.
5281
5282 2006-03-03  Roger Sayle  <roger@eyesopen.com>
5283
5284         PR tree-optimization/26524
5285         * tree-scalar-evolution.c (interpret_rhs_modify_expr): Use
5286         fold_convert to create a constant of the appropriate type.
5287
5288 2006-03-03  Richard Sandiford  <richard@codesourcery.com>
5289
5290         * doc/tm.texi: Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
5291         SYMBOL_REF_IN_BLOCK_P.
5292         * doc/rtl.texi: Likewise.  Refer to SYMBOL_FLAG_HAS_BLOCK_INFO instead
5293         of SYMBOL_FLAG_IN_BLOCK.
5294         * gengtype.c (adjust_field_rtx_def): Use SYMBOL_REF_HAS_BLOCK_INFO_P
5295         instead of SYMBOL_REF_IN_BLOCK_P.
5296         * explow.c (use_anchored_address): Likewise.
5297         * rtl.c (rtx_size): Likewise.
5298         * varasm.c (create_block_symbol): Set SYMBOL_FLAG_HAS_BLOCK_INFO
5299         instead of SYMBOL_FLAG_IN_BLOCK.
5300         (make_decl_rtl): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
5301         SYMBOL_REF_IN_BLOCK_P.
5302         (assemble_variable): Likewise.
5303         (output_constant_def_contents): Likewise.
5304         (output_constant_pool): Likewise.
5305         (default_encode_section_info): Preserve SYMBOL_FLAG_HAS_BLOCK_INFO
5306         instead of SYMBOL_FLAG_IN_BLOCK.
5307         * rtl.h (block_symbol): Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
5308         SYMBOL_REF_IN_BLOCK_P.
5309         (SYMBOL_REF_BLOCK): Likewise.
5310         (SYMBOL_REF_OFFSET): Likewise.
5311         (BLOCK_SYMBOL_CHECK): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
5312         SYMBOL_REF_IN_BLOCK_P.
5313         (SYMBOL_FLAG_IN_BLOCK): Replace with...
5314         (SYMBOL_FLAG_HAS_BLOCK_INFO): ...this.
5315         (SYMBOL_REF_IN_BLOCK_P): Replace with...
5316         (SYMBOL_REF_HAS_BLOCK_INFO_P): ...this.
5317
5318 2006-03-03  Jakub Jelinek  <jakub@redhat.com>
5319
5320         * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Fix pasto.
5321
5322 2006-03-02  Roger Sayle  <roger@eyesopen.com>
5323
5324         * simplify-rtx.c (simplify_unary_operation): When simplifying
5325         (neg (lt X 0)) into (ashiftrt X C) or (lshiftrt X C), make sure
5326         that we perform the right shift in the appropriate mode, and
5327         then extend or truncate the result to requested mode.
5328
5329 2006-03-03  Zdenek Dvorak <dvorakz@suse.cz>
5330
5331         * gengtype.c (main): Handle double_int type.
5332         * tree.h (struct tree_int_cst): Make type of int_cst double_int.
5333         * double-int.c: New file.
5334         * double-int.h: New file.
5335         * system.h: Include doubleint.h.
5336         * Makefile.in (SYSTEM_H): Include double-int.h.
5337         (double-int.o): Add.
5338
5339 2006-03-03  Joseph S. Myers  <joseph@codesourcery.com>
5340
5341         PR bootstrap/26478
5342         * Makefile.in (stmp-int-hdrs): Remove include/unwind.h before
5343         copying over it.
5344
5345 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
5346
5347         * tree-vrp.c (remove_range_assertions): Do not update statements
5348         unnecessarily.
5349
5350 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
5351
5352         * cse.c (rest_of_handle_cse): Do not pass CLEANUP_PRE_LOOP to cfg
5353         cleanup.
5354         * gcse.c (rest_of_handle_gcse): Ditto.
5355         * except.c (gate_handle_eh): Ditto.
5356         * cfgcleanup.c (rest_of_handle_jump2): Ditto.
5357         * basic-block.h (CLEANUP_PRE_LOOP): Remove.
5358
5359 2006-03-02  Eric Christopher  <echristo@apple.com>
5360
5361         * config/i386/i386.c (machopic_output_stub): Add indirection to
5362         jump.
5363
5364 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
5365
5366         * loop.c: Removed.
5367
5368 2006-03-02  David S. Miller  <davem@sunset.davemloft.net>
5369
5370         Sun Niagara specific optimizations.
5371         * config.gcc: Recognize niagara as target.
5372         * config/sparc/sparc.h (SPARC_RELAXED_ORDERING): Mention Niagara.
5373         (TARGET_CPU_niagara): Define.
5374         (CPP_CPU64_DEFAULT_SPEC): Define __sparc_v9__ for Niagara.
5375         (ASM_CPU64_DEFAULT_SPEC): Pass -Av9b for Niagara.
5376         (CPP_CPU_SPEC): Handle -mcpu=niagara.
5377         (ASM_CPU_SPEC): Likewise.
5378         (PROCESSOR_NIAGARA): New enum entry.
5379         (REGISTER_MOVE_COST): Handle Niagara.
5380         (BRANCH_COST, PREFETCH_BLOCK, SIMULTANEOUS_PREFETCHES): Likewise.
5381         * config/sparc/sparc.c (niagara_costs): New processor_costs entry.
5382         (sparc_override_options): Recognize "niagara", set appropriate
5383         default MASK_* values for it, and align functions to 32-bytes
5384         by default just like ULTRASPARC/ULTRASPARC3.
5385         (sparc_initialize_trampoline): Handle niagara like ultrasparc.
5386         (sparc64_initialize_trampoline): Likewise.
5387         (sparc_use_sched_lookahead): Use zero for niagara.
5388         (sparc_issue_rate): Use one for niagara.
5389         * config/sparc/niagara.md: New file.
5390         * config/sparc/sparc.md: Include it.
5391         * config/sparc/sol2-bi.h (CPP_CPU64_DEFAULT_SPEC,
5392         ASM_CPU32_DEFAULT_SPEC, ASM_CPU64_DEFAULT_SPEC): Set appropriately
5393         when default cpu is niagara.
5394         (CPP_CPU_SPEC): Handle -mcpu=niagara.
5395         (ASM_CPU_SPEC): Likewise.
5396         * config/sparc/sol2.h (ASM_CPU_DEFAULT_SPEC): Set appropriately
5397         when default cpu is niagara.
5398         (ASM_CPU_SPEC): Handle -mcpu=niagara.
5399         * config/sparc/linux64.h: Handle a default of TARGET_CPU_niagara
5400         just like v9/ultrasparc/ultrasparc3.
5401         * doc/invoke.texi: Add documentation for "niagara" and improve
5402         existing documentation for ultrasparc variants.
5403
5404 2006-03-02  Diego Novillo  <dnovillo@redhat.com>
5405
5406         * tree-ssa-operands.c (update_stmt_operands): Update documentation.
5407
5408 2006-03-02  Richard Sandiford  <richard@codesourcery.com>
5409
5410         * doc/tm.texi (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Document.
5411         (ASM_OUTPUT_BSS): Describe the two ways of handling global BSS,
5412         and say that only one is needed.
5413         * doc/rtl.texi (SYMBOL_REF_BLOCK): Say that the block can be null.
5414         * target.h (have_switchable_bss_sections): New hook.
5415         * explow.c (use_anchored_address): Check that the symbol is in a block.
5416         * varasm.c (tls_comm_section, comm_section, lcomm_section)
5417         (bss_noswitch_section): New variables.
5418         (get_unnamed_section): Add SECTION_UNNAMED to the flags.
5419         (get_noswitch_section): New function.
5420         (get_block_for_section): Allow SECT to be null.
5421         (unlikely_text_section_p): Use SECTION_STYLE.
5422         (bss_initializer_p): New function.
5423         (get_variable_section): Move earlier in file.  Take a new argument,
5424         prefer_noswitch_p.  Move bss checks from assemble_variable to here.
5425         Return one of the new *_sections in such cases.
5426         (get_block_for_decl): New function, extracting some logic from
5427         use_blocks_for_decl_p.
5428         (change_symbol_section): Remove in favor of...
5429         (change_symbol_block): ...this new function.
5430         (use_blocks_for_decl_p): Remove checks now performed by
5431         get_block_for_decl.
5432         (make_decl_rtl): Use change_symbol_block and get_block_for_decl.
5433         (ASM_EMIT_LOCAL, ASM_EMIT_BSS, ASM_EMIT_COMMON): Delete in favor of...
5434         (emit_local, emit_bss, emit_common): ...these new functions.
5435         Return true if the alignment was honored.
5436         (emit_tls_common): New function.
5437         (asm_emit_uninitialised): Delete.
5438         (assemble_variable_noswitch): New function, split out from...
5439         (assemble_variable): ...here.  Don't make decisions about common
5440         variables here.  Globalize all public decls that go into non-common
5441         sections.  Check whether SYMBOL_REF_BLOCK is null.
5442         (output_constant_def_contents): Check whether SYMBOL_REF_BLOCK is null.
5443         (output_constant_pool): Likewise.
5444         (init_varasm_once): Initialize the new section variables.
5445         (have_global_bss_p): New function.
5446         (categorize_decl_for_section): Use bss_initializer_p.
5447         (switch_to_section): Use SECTION_STYLE.  Abort for SECTION_NOSWITCH.
5448         (place_block_symbol): Assert that the symbol must be in a block.
5449         * target-def.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): New macro.
5450         (TARGET_INITIALIZER): Include it.
5451         * rtl.h (SYMBOL_REF_BLOCK): Document the null alternative.
5452         * output.h (SECTION_STYLE_MASK, SECTION_COMMON): New macros.
5453         (SECTION_MACH_DEP): Bump by two.
5454         (SECTION_UNNAMED, SECTION_NOSWITCH): New macros.
5455         (unnamed_section): Mention SECTION_UNNAMED in comment.
5456         (named_section): Likewise SECTION_NAMED.
5457         (noswitch_section_callback): New type.
5458         (noswitch_section): New structure.
5459         (section): Add a noswitch_section alternative.
5460         (SECTION_STYLE): New macro.
5461         (tls_comm_section, comm_section, lcomm_section): Declare.
5462         (bss_noswitch_section, have_global_bss_p): Declare.
5463         * config/elfos.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
5464         * config/iq2000/iq2000.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
5465         Override.
5466         * config/v850/v850.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
5467         * config/stormy16/stormy16.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
5468         Override.
5469
5470 2006-03-02  Daniel Berlin <dberlin@dberlin.org>
5471
5472         * tree-vrp.c (execute_vrp): Return value.
5473         * regrename.c (rest_of_handle_regrename): Ditto.
5474         * tree-into-ssa.c (rewrite_into_ssa): Ditto.
5475         * tree-complex.c (tree_lower_complex): Ditto.
5476         (tree_lower_complex_O0): Ditto.
5477         * tracer.c (rest_of_handle_tracer): Ditto.
5478         * postreload-gcse.c (rest_of_handle_gcse2): Ditto.
5479         * postreload.c (rest_of_handle_postreload): Ditto.
5480         * tree-tailcall.c (execute_tail_recursion): Ditto.
5481         (execute_tail_calls): Ditto.
5482         * tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
5483         * tree.h (init_function_for_compilation): Ditto.
5484         * ipa-cp.c (ipcp_driver): Ditto.
5485         * tree-scalar-evolution.c (scev_const_prop): Ditto.
5486         * tree-scalar-evolution.h (scev_const_prop): Ditto.
5487         * final.c (compute_alignments): Ditto.
5488         (rest_of_handle_final): Ditto.
5489         (rest_of_handle_shorten_branches): Ditto.
5490         (rest_of_clean_state): Ditto.
5491         * omp-low.c (execute_expand_omp): Ditto.
5492         (execute_lower_omp): Ditto.
5493         * tree-ssa-dse.c (tree_ssa_dse): Ditto.
5494         * ipa-reference.c (static_execute): Ditto.
5495         * tree-ssa-uncprop.c (tree_ssa_uncprop): Ditto.
5496         * reorg.c (rest_of_handle_delay_slots): Ditto.
5497         (rest_of_handle_machine_reorg): Ditto.
5498         * cgraphunit.c (rebuild_cgraph_edges): Ditto.
5499         * flow.c (recompute_reg_usage): Ditto.
5500         (rest_of_handle_remove_death_notes): Ditto.
5501         (rest_of_handle_life): Ditto.
5502         (rest_of_handle_flow2): Ditto.
5503         * tree-ssa-copyrename.c (rename_ssa_copies): Ditto.
5504         * tree-ssa-ccp.c (do_ssa_ccp): Ditto.
5505         (do_ssa_store_ccp): Ditto.
5506         (execute_fold_all_builtins): Ditto.
5507         * mode-switching.c (rest_of_handle_mode_switching): Ditto.
5508         * modulo-sched.c (rest_of_handle_sms): Ditto.
5509         * ipa-pure-const.c (static_execute): Ditto.
5510         * cse.c (rest_of_handle_cse): Ditto.
5511         (rest_of_handle_cse2): Ditto.
5512         * web.c (rest_of_handle_web): Ditto.
5513         * tree-stdarg.c (execute_optimize_stdarg): Ditto.
5514         * tree-ssa-math-opts.c (execute_cse_reciprocals): Ditto.
5515         * tree-ssa-dom.c (tree_ssa_dominator_optimize): Ditto.
5516         * tree-nrv.c (tree_nrv): Ditto.
5517         (execute_return_slot_opt): Ditto.
5518         * tree-ssa-alias.c (compute_may_aliases): Ditto.
5519         (create_structure_vars): Ditto.
5520         * loop-init.c (rtl_loop_init): Ditto.
5521         (rtl_loop_done): Ditto.
5522         (rtl_move_loop_invariants): Ditto.
5523         (rtl_unswitch): Ditto.
5524         (rtl_unroll_and_peel_loops): Ditto.
5525         (rtl_doloop): Ditto.
5526         * gimple-low.c (lower_function_body): Ditto.
5527         (mark_used_blocks): Ditto.
5528         * tree-ssa-sink.c (execute_sink_code): Ditto.
5529         * ipa-inline.c (cgraph_decide_inlining): Ditto.
5530         (cgraph_early_inlining): Ditto.
5531         * global.c (rest_of_handle_global_alloc): Ditto.
5532         * jump.c (cleanup_barriers): Ditto.
5533         (purge_line_number_notes): Ditto.
5534         * ifcvt.c (rest_of_handle_if_conversion): Ditto.
5535         (rest_of_handle_if_after_reload): Ditto.
5536         * tree-ssa-loop.c (tree_ssa_loop_init): Ditto.
5537         (tree_ssa_loop_im): Ditto.
5538         (tree_ssa_loop_unswitch): Ditto.
5539         (tree_vectorize): Ditto.
5540         (tree_linear_transform): Ditto.
5541         (tree_ssa_loop_ivcanon): Ditto.
5542         (tree_ssa_empty_loop): Ditto.
5543         (tree_ssa_loop_bounds): Ditto.
5544         (tree_complete_unroll): Ditto.
5545         (tree_ssa_loop_prefetch): Ditto.
5546         (tree_ssa_loop_ivopts): Ditto.
5547         (tree_ssa_loop_done): Ditto.
5548         * predict.c (tree_estimate_probability): Ditto.
5549         * recog.c (split_all_insns_noflow): Ditto.
5550         (rest_of_handle_peephole2): Ditto.
5551         (rest_of_handle_split_all_insns): Ditto.
5552         * tree-eh.c (lower_eh_constructs): Ditto.
5553         * regmove.c (rest_of_handle_regmove): Ditto.
5554         (rest_of_handle_stack_adjustments): Ditto.
5555         * local-alloc.c (rest_of_handle_local_alloc): Ditto.
5556         * function.c (instantiate_virtual_regs): Ditto.
5557         (init_function_for_compilation): Ditto.
5558         (rest_of_handle_check_leaf_regs): Ditto.
5559         * gcse.c (rest_of_handle_jump_bypass): Ditto.
5560         (rest_of_handle_gcse): Ditto.
5561         * ipa-type-escape.c (type_escape_execute): Ditto.
5562         * alias.c (rest_of_handle_cfg): Ditto.
5563         * tree-if-conv.c (main_tree_if_conversion): Ditto.
5564         * profile.c (rest_of_handle_branch_prob): Ditto.
5565         * tree-ssa-phiopt.c (tree_ssa_phiopt): Ditto.
5566         * rtl-factoring.c (rest_of_rtl_seqabstr): Ditto.
5567         * bt-load.c (rest_of_handle_branch_target_load_optimize): Ditto
5568         * tree-dfa.c (find_referenced_vars): Ditto.
5569         * except.c (set_nothrow_function_flags): Ditto.
5570         (convert_to_eh_region_ranges): Ditto.
5571         (rest_of_handle_eh): Ditto.
5572         * emit-rtl.c (unshare_all_rtl): Ditto.
5573         (remove_unnecessary_notes): Ditto.
5574         * except.h (set_nothrow_function_flags): Ditto.
5575         (convert_to_eh_region_ranges): Ditto.
5576         * cfgexpand.c (tree_expand_cfg): Ditto.
5577         * tree-cfgcleanup.c (merge_phi_nodes): Ditto.
5578         * tree-ssa-pre.c (do_pre): Ditto.
5579         (execute_fre): Ditto.
5580         * cfgcleanup.c (rest_of_handle_jump): Ditto.
5581         (rest_of_handle_jump2): Ditto.
5582         * tree-sra.c (tree_sra): Ditto.
5583         * tree-mudflap.c (execute_mudflap_function_ops): Ditto.
5584         (execute_mudflap_function_decls): Ditto.
5585         * tree-ssa-copy.c (do_copy_prop): Ditto.
5586         (do_store_copy_prop): Ditto.
5587         * ipa-prop.h (ipcp_driver): Ditto.
5588         * cfglayout.c (insn_locators_initialize): Ditto.
5589         * tree-ssa-forwprop.c
5590         (tree_ssa_forward_propagate_single_use_vars): Ditto.
5591         * cfglayout.h (insn_locators_initialize): Ditto.
5592         * tree-ssa-dce.c (tree_ssa_dce): Ditto.
5593         * tree-ssa.c (execute_early_warn_uninitialized): Ditto.
5594         (execute_late_warn_uninitialized): Ditto.
5595         * rtl.h (cleanup_barriers): Ditto.
5596         (split_all_insns_noflow): Ditto.
5597         (purge_line_number_notes): Ditto.
5598         (unshare_all_rtl): Ditto.
5599         (remove_unnecessary_notes): Ditto.
5600         (recompute_reg_usage): Ditto.
5601         (variable_tracking_main): Ditto.
5602         * integrate.c (emit_initial_value_sets): Ditto.
5603         * integrate.h (emit_initial_value_sets): Ditto.
5604         * tree-optimize.c (execute_free_datastructures): Ditto
5605         (execute_free_cfg_annotations): Ditto.
5606         (execute_fixup_cfg): Ditto.
5607         (execute_cleanup_cfg_pre_ipa): Ditto.
5608         (execute_cleanup_cfg_post_optimizing): Ditto.
5609         (execute_init_datastructures): Ditto.
5610         * tree-object-size.c (compute_object_sizes): Ditto.
5611         * combine.c (rest_of_handle_combine): Ditto.
5612         * tree-outof-ssa.c (rewrite_out_of_ssa): Ditto.
5613         * bb-reorder.c (duplicate_computed_gotos): Ditto.
5614         (rest_of_handle_reorder_blocks): Ditto.
5615         (rest_of_handle_partition_blocks): Ditto.
5616         * var-tracking.c (variable_tracking_main): Ditto.
5617         * tree-profile.c (tree_profiling): Ditto.
5618         * tree-vect-generic.c (expand_vector_operations): Ditto.
5619         * reg-stack.c (rest_of_handle_stack_regs): Ditto.
5620         * sched-rgn.c (rest_of_handle_sched): Ditto.
5621         (rest_of_handle_sched2): Ditto.
5622         * basic-block.h (free_bb_insn): Ditto.
5623         * tree-ssa-structalias.c (ipa_pta_execute): Ditto.
5624         * tree-cfg.c (execute_build_cfg): Ditto.
5625         (remove_useless_stmts): Ditto.
5626         (split_critical_edges): Ditto.
5627         (execute_warn_function_return): Ditto.
5628         (execute_warn_function_noreturn): Ditto.
5629         * tree-ssa-reassoc.c (execute_reassoc): Ditto.
5630         * cfgrtl.c (free_bb_for_insn): Ditto.
5631         * passes.c (execute_one_pass): Run additional
5632         todos returned by execute function.
5633         * tree-pass.h (struct tree_opt_pass): Make execute
5634         return a value.
5635
5636 2006-03-02  Richard Guenther  <rguenther@suse.de>
5637
5638         * tree-ssa-alias.c (find_used_portions): Consider taking
5639         the address as making the variable not write-only.
5640
5641 2006-03-02  Nick Clifton  <nickc@redhat.com>
5642
5643         * config.gcc (default_use_cxa_atexit): Extend the description of
5644         this configure variable.  Set its default value to "yes" for
5645         Linux, NetBSD and ELF targets on the assumption that they will
5646         use C libraries with the __cxa_atexit function.
5647
5648 2006-03-02  Ben Elliston  <bje@au.ibm.com>
5649
5650         * config/rs6000/linux-unwind.h (frob_update_context): Mark `fs'
5651         parameter as unused to suppress a build warning.
5652
5653 2006-03-02  Ben Elliston  <bje@au.ibm.com>
5654
5655         * mklibgcc.in: Depend on config/dfp-bit.h in rules that compile
5656         config/dfp-bit.c.
5657
5658 2006-03-01  Roger Sayle  <roger@eyesopen.com>
5659
5660         PR other/26489
5661         * gthr-posix.h (__gthrw2): Define to take three parameters, the
5662         declared name, the weak reference name, and the typeof name.
5663         (__gthrw): Avoid expanding the declared name suffix.
5664         (__gthrw3): New Tru64 specific macro to simplify the OSF/1 decls.
5665
5666 2006-03-01  Jakub Jelinek  <jakub@redhat.com>
5667
5668         * dwarf2.h (DW_TAG_condition, DW_TAG_shared_type): New constants
5669         from DWARF 3.
5670         (DW_AT_description, DW_AT_binary_scale, DW_AT_decimal_scale,
5671         DW_AT_small, DW_AT_decimal_sign, DW_AT_digit_count,
5672         DW_AT_picture_string, DW_AT_mutable, DW_AT_threads_scaled,
5673         DW_AT_explicit, DW_AT_object_pointer, DW_AT_endianity,
5674         DW_AT_elemental, DW_AT_pure, DW_AT_recursive): New.
5675         (DW_OP_form_tls_address, DW_OP_call_frame_cfa, DW_OP_bit_piece): New.
5676         (DW_ATE_packed_decimal, DW_ATE_numeric_string, DW_ATE_edited,
5677         DW_ATE_signed_fixed, DW_ATE_unsigned_fixed): New.
5678         (DW_DS_unsigned, DW_DS_leading_overpunch, DW_DS_trailing_overpunch,
5679         DW_DS_leading_separate, DW_DS_trailing_separate): New.
5680         (DW_END_default, DW_END_big, DW_END_little): New.
5681         (DW_END_lo_user, DW_END_hi_user): Define.
5682         (DW_LNE_lo_user, DW_LNE_hi_user): Define.
5683         (DW_CFA_val_offset, DW_CFA_val_offset_sf, DW_CFA_val_expression): New.
5684         (DW_LANG_PLI, DW_LANG_ObjC, DW_LANG_ObjC_plus_plus, DW_LANG_UPC,
5685         DW_LANG_D): New.
5686
5687 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
5688
5689         * tree.def (SYMBOL_MEMORY_TAG): Rename from TYPE_MEMORY_TAG.
5690         Update all users.
5691         * tree-pass.h (PROP_smt_usage): Rename from PROP_tmt_usage.
5692         Update all users.
5693         (TODO_update_smt_usage): Rename from TODO_update_tmt_usage.
5694         Update all users.
5695         * tree.h (SMT_USED_ALONE): Rename from TMT_USED_ALONE.
5696         Update all users.
5697         * tree-flow.h (struct var_ann_d): Rename field 'type_mem_tag'
5698         to 'symbol_mem_tag'.
5699         Update all users.
5700         * doc/tree-ssa.texi: Update documentation to reflect TMT->SMT
5701         rename.
5702
5703 2006-03-01  Roger Sayle  <roger@eyesopen.com>
5704
5705         * builtins.c (fold_builtin_copysign): Delete unreachable code.
5706
5707 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
5708
5709         PR target/25761
5710         * config/darwin.h (MACHOPIC_JUST_INDIRECT): Check just
5711         MACHO_DYNAMIC_NO_PIC_P.
5712         (MACHOPIC_PURE): Check flag_pic and not MACHO_DYNAMIC_NO_PIC_P.
5713
5714 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
5715
5716         PR target/26389
5717         * config/darwin-protos.h (darwin_asm_output_anchor):
5718         Declare.
5719         * config/darwin-sections.def (cstring_section):
5720         Add SECTION_MERGE to the flags.
5721         (literal4_section): Likewise.
5722         (literal8_section): Likewise.
5723         (objc_selector_refs_section): Likewise.
5724         (objc_cls_refs_section): Likewise.
5725         * config/darwin.c (darwin_asm_output_anchor): New
5726         function.
5727         * config/darwin.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
5728
5729 2006-03-01  Daniel Berlin  <dberlin@dberlin.org>
5730
5731         Fix PR tree-optimization/26443
5732         * tree-vrp.c (pass_vrp): Add TODO_update_tmt_usage
5733         to todo and PROP_tmt_usage to properties_destroyed.
5734         * tree-ssa-ccp.c (pass_ccp): Ditto.
5735         (pass_store_ccp): Ditto.
5736         * tree-ssa-dom.c (pass_dominator): Ditto.
5737
5738 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
5739
5740         * tree-ssa-operands.c: Cleanup whitespace.
5741         (get_asm_expr_operands): Move before first invocation.
5742         (get_indirect_ref_operands): Likewise.
5743         (get_tmr_operands): Likewise.
5744         (get_call_expr_operands): Likewise.
5745         (append_def): Likewise.
5746         (append_use): Likewise.
5747         (append_v_may_def): Likewise.
5748         (append_v_must_def): Likewise.
5749         (add_call_clobber_ops): Likewise.
5750         (add_call_read_ops): Likewise.
5751         (add_stmt_operand): Likewise.
5752         (add_virtual_operand): Likewise.
5753         (build_ssa_operands): Likewise.
5754
5755 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
5756
5757         PR middle-end/26022
5758         Revert:
5759         PR middle-end/24437
5760         * tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
5761         with a call expr to ...
5762         * fold-const.c (fold_ternary) <case CALL_EXPR>: Here.
5763
5764 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
5765
5766         * tree-vrp.c (extract_range_from_assert): Remove special
5767         handling for types with super-types.
5768
5769 2006-03-01  Ben Elliston  <bje@au.ibm.com>
5770
5771         * config.gcc: Add t-dfprules to $tmake_file for powerpc-*-linux*
5772         and powerpc64-*-linux* configurations.
5773         * config/t-dfprules: New file.
5774
5775         * mklibgcc.in: Add logic to handle $DFP_ENABLE and $DFP_CFLAGS.
5776         Compile dfp-bit.c from the source directory using -DWIDTH and
5777         $DFP_CFLAGS to control the compilation of that file, rather than
5778         generating width-specific versions in the build directory.
5779         * Makefile.in (libgcc.mk): Pass down DFP_ENABLE and DFP_CFLAGS.
5780         (LIBGCC_DEPS): Replace $(D32PBIT) et al with config/dfp-bit.[hc].
5781
5782 2006-02-28  Zack Weinberg  <zackw@panix.com>
5783
5784         * doc/md.texi: Avoid use of @headitem so that makeinfo <4.7
5785         continues to work.
5786
5787 2006-02-28  Eric Christopher  <echristo@apple.com>
5788
5789         * config/rs6000/darwin.h (ENABLE_STACK_EXECUTE): Define.
5790         Set up IN_LIBGCC definition of TARGET_64BIT.
5791         * config/i386/darwin.h (ENABLE_STACK_EXECUTE): Define.
5792
5793 2006-02-28  Roger Sayle  <roger@eyesopen.com>
5794
5795         PR middle-end/14752
5796         * c-common.c (c_common_truthvalue_conversion) <MINUS_EXPR,
5797         BIT_XOR_EXPR, BIT_AND_EXPR>: Delete.  Let fold optimize these
5798         cases via the construction of "expr != 0".
5799
5800 2006-02-28  Steven Bosscher  <stevenb.gcc@gmail.com>
5801
5802         * alias.c (alias_invariant, alias_invariant_size): Remove.
5803         (record_base_value): Remove.
5804         (memrefs_conflict_p): Don't look at alias_invariant.
5805         (end_alias_analysis): Don't free it.
5806         * alias.h (record_base_value): Remove prototype.
5807
5808 2006-02-28  Paolo Bonzini  <bonzini@gnu.org>
5809             Adam Nemet  <anemet@caviumnetworks.com>
5810
5811         * rtl.h (truncated_to_mode): Declare it.
5812         (struct rtl_hooks): Add reg_truncated_to_mode hook.
5813         * rtlhooks-def.h (RTL_HOOKS_REG_TRUNCATED_TO_MODE): New macro.
5814         (RTL_HOOKS_INITIALIZER): Include it.
5815         * rtlhooks.c (reg_truncated_to_mode_general): New function.
5816         * combine.c (RTL_HOOKS_REG_TRUNCATED_TO_MODE): Override to
5817         reg_truncated_to_mode.
5818         * rtlanal.c (truncated_to_mode): Define it.
5819         * simplify-rtx.c (simplify_unary_operation_1): Use it.
5820
5821 2006-02-28  Jeff Law  <law@redhat.com>
5822
5823         * tree-chrec.c (chrec_convert_aggressive): Do not eliminate
5824         conversions where TYPE_MIN_VALUE/TYPE_MAX_VALUE do not cover
5825         the range allowed by TYPE_PRECISION.
5826
5827         * tree.h (strct phi_arg_d): Remove unused NONZERO field.
5828
5829 2006-02-28  Dorit Nuzman  <dorit@il.ibm.com>
5830
5831         PR tree-optimization/26419
5832         * doc/invoke.texi (ftree-vectorizer-verbose): Add information on
5833         values of n.
5834
5835 2006-02-27  Zack Weinberg  <zackw@panix.com>
5836
5837         * doc/md.texi: Fix typo in previous change.
5838
5839 2006-02-27  Kenneth Zadeck <zadeck@naturalbridge.com>
5840
5841         * df.c: Remove.
5842
5843 2006-02-27  Zack Weinberg  <zackw@panix.com>
5844
5845         * rtl.def (define_constraint, define_register_constraint)
5846         (define_memory_constraint, define_address_constraint): New MD forms.
5847         * gensupport.c (process_rtx): Put define_constraint etc on the
5848         predicate queue.
5849         * genpreds.c (process_define_predicate): Adjust comment.  Validate
5850         the name, and call validate_exp to validate the expression.
5851         (mark_mode_tests, write_extract_subexp): Can assume correct input.
5852         (write_predicate_expr): Likewise.  NAME argument no longer necessary;
5853         all callers changed.
5854         (validate_exp, needs_variable, struct constraint_data)
5855         (constraints_by_letter_table, first_constraint, last_constraint_ptr)
5856         (FOR_ALL_CONSTRAINTS, generic_constraint_letters, const_int_constraints)
5857         (const_dbl_constraints, constraint_max_namelen)
5858         (have_register_constraints, have_memory_constraints)
5859         (have_address_constraints, have_address_constraints)
5860         (have_extra_constraints, have_const_int_constraints)
5861         (have_const_dbl_constraints, mangle, add_constraint)
5862         (process_define_constraint, process_define_register_constraint)
5863         (write_enum_constraint_num, write_lookup_constraint)
5864         (write_insn_constraint_len, write_regclass_for_constraint)
5865         (write_constraint_satisfied_p, write_insn_const_int_ok_for_constraint)
5866         (write_insn_extra_memory_constraint)
5867         (write_insn_extra_address_constraint)
5868         (write_satisfies_constraint_fns): New.
5869         (write_tm_preds_h): If we have new-style constraint definitions,
5870         prototype the functions generated from them, and define the
5871         old constraint interface (still used by generic code) in terms of
5872         those functions.
5873         (write_insn_preds_c): If we have new-style constraint definitions,
5874         generate all relevant functions from those definitions.
5875         (main): Handle define_constraint etc.
5876         * genoutput.c (struct constraint_data, indep_constraints)
5877         (mdep_constraint_letters, constraints_by_letter_table, note_constraint)
5878         (mdep_constraint_len): New data structures and functions, defined
5879         #ifdef USE_MD_CONSTRAINTS.
5880         (check_constraint_len): Don't define #ifdef USE_MD_CONSTRAINTS.
5881         (validate_insn_alternatives): If USE_MD_CONSTRAINTS is defined,
5882         use new logic to validate operand constraints against constraint
5883         definitions.
5884         (main): Process define_constraint etc. if USE_MD_CONSTRAINTS is
5885         defined.
5886         * defaults.h: If none of the old-style constraint macros are
5887         defined, define USE_MD_CONSTRAINTS; do not provide defaults for any
5888         old-style macros; and poison REG_CLASS_FROM_LETTER,
5889         CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P, and
5890         EXTRA_CONSTRAINT.
5891         * recog.c (reg_fits_class_p): If cl is NO_REGS, return 0 immediately.
5892         * doc/md.texi: Document new constraint-definition mechanism and the
5893         C interface it provides.  Remove references to old mechanism
5894         elsewhere in the document.
5895         (Machine Constraints): Use pathnames relative to gcc directory,
5896         i.e. config/ARCH/FILE.  Change i386 section to refer to
5897         config/i386/predicates.md; update that section to match docstrings.
5898         * doc/tm.texi: Move all documentation of the old constraint-
5899         definition macros to their own section, clearly mark as obsolete.
5900
5901         * config/i386/predicates.md (R, q, Q, l, a, b, c, d, S, D, A, f, t)
5902         (u, y, x, Y, I, J, K, L, M, N, O, G, C, e, Z): New constraint
5903         definitions.
5904         * config/i386/i386.h (REG_CLASS_FROM_LETTER, CONST_OK_FOR_LETTER_P)
5905         (CONST_DOUBLE_OK_FOR_LETTER_P, EXTRA_CONSTRAINT): Delete.
5906         * config/i386/i386.md (*movdf_nointeger): Remove stray 'H' from
5907         constraint strings.
5908         (splits and peepholes): Use satisfies_constraint_*.
5909         * config/i386/i386.c (memory_address_length)
5910         (ix86_attr_length_immediate_default): Use satisfies_constraint_*.
5911
5912 2006-02-27  Daniel Berlin  <dberlin@dberlin.org>
5913
5914         * lambda-code.c (can_convert_to_perfect_nest): Allow any type of
5915         scalar operation to be put back into the loop.
5916
5917 2006-02-27  Jakub Jelinek  <jakub@redhat.com>
5918
5919         PR other/26208
5920         * unwind-dw2.c (struct _Unwind_Context): Add signal_frame field.
5921         (extract_cie_info): Handle S flag in augmentation string.
5922         (execute_cfa_program): If context->signal_frame, execute also
5923         fs->pc == context->ra instructions.
5924         (uw_frame_state_for): If context->signal_frame, don't subtract one
5925         from context->ra to find FDE.
5926         (uw_update_context_1): Set context->signal_frame to
5927         fs->signal_frame.
5928         (_Unwind_GetIPInfo): New function.
5929         * unwind-dw2.h (_Unwind_FrameState): Add signal_frame field.
5930         * unwind-c.c (PERSONALITY_FUNCTION): Use _Unwind_GetIPInfo instead
5931         of _Unwind_GetIP.
5932         * unwind-sjlj.c (_Unwind_GetIPInfo): New function.
5933         * unwind-generic.h (_Unwind_GetIPInfo): New prototype.
5934         * unwind-compat.c (_Unwind_GetIPInfo): New function.
5935         * libgcc-std.ver (_Unwind_GetIPInfo): Export @@GCC_4.2.0.
5936         * config/ia64/unwind-ia64.c (_Unwind_GetIPInfo): New function.
5937         * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Define.
5938         * config/i386/linux-unwind.h (x86_fallback_frame_state,
5939         x86_64_fallback_frame_state): Set fs->signal_frame.
5940         * config/rs6000/linux-unwind.h (ppc_fallback_frame_state): Likewise.
5941         (MD_FROB_UPDATE_CONTEXT): Define unconditionally.
5942         (frob_update_context): Likewise.  Workaround missing S flag in
5943         Linux 2.6.12 - 2.6.16 kernel vDSOs.
5944         * config/s390/linux-unwind.h (s390_fallback_frame_state): Likewise.
5945         Remove the psw_addr + 1 hack.
5946
5947 2006-02-27  Daniel Berlin  <dberlin@dberlin.org>
5948
5949         * tree-ssa-structalias.c (get_constraint_for): Move code to deal
5950         with aggregates here.
5951         (find_func_aliases): Remove code for &<aggregate> from here.
5952
5953 2006-02-26  Roger Sayle  <roger@eyesopen.com>
5954
5955         * fold-const.c (fold_binary) <EQ_EXPR>: Fold (~X & C) eq/ne 0 as
5956         (X & C) ne/eq 0, where C is a single bit, i.e. a power of two.
5957         Fold both "((X & C) ^ C) eq/ne 0" and "((X ^ C) & C) eq/ne 0"
5958         as (X & C) ne/eq 0.
5959
5960 2006-02-26  Roger Sayle  <roger@eyesopen.com>
5961
5962         PR middle-end/19983
5963         * real.c (real_nan): Allow both 0x and 0X as hexadecimal prefixes.
5964
5965 2006-02-26  Zdenek Dvorak <dvorakz@suse.cz>
5966
5967         * opts.c (decode_options): Do not handle flag_strength_reduce.
5968         (common_handle_option): Handle OPT_floop_optimize, OPT_frerun_loop_opt
5969         and OPT_fstrength_reduce.
5970         * tree-ssa-loop.c (tree_ssa_loop_prefetch): Only test
5971         flag_prefetch_loop_arrays for being nonzero.
5972         * common.opt (floop-optimize, frerun-loop-opt): Resurrected as
5973         no-ops.
5974         (fprefetch-loop-arrays-rtl): Removed.
5975         (flag_prefetch_loop_arrays): Do not specify the value.
5976
5977         * doc/passes.texi: Update documentation of loop optimizer
5978         passes.
5979         * doc/invoke.texi (-fstrength-reduce, -fprefetch-loop-arrays-rtl,
5980         -frerun-loop-opt): Remove.
5981
5982 2006-02-26  Richard Guenther  <rguenther@suse.de>
5983
5984         PR tree-optimization/26421
5985         * tree-ssa-alias.c (find_used_portions): Don't treat parameters
5986         in function calls that are ADDR_EXPRs as using the whole structure.
5987
5988 2006-02-26  Steven Bosscher  <stevenb.gcc@gmail.com>
5989
5990         * common.opt (-floop-optimize, -frerun-loop-opt): Remove.
5991         * tree-pass.h (pass_loop_optimize): Remove.
5992         * passes.c (pass_loop_optimize): Never run it.
5993         * toplev.c (backend_init): Don't call init_loop.
5994         * opts.c (flag_loop_optimize_set): Remove.
5995         (decode_options): Never set flag_loop_optimize or flag_rerun_loop_opt.
5996         (common_handle_option) <OPT_floop_optimize>: Remove.  Don't disable
5997         the old RTL loop optimizer when profiling enabled.
5998         * predict.c (tree_estimate_probability): Always strip builtin_expect.
5999         * cfgcleanup.c (try_forward_edges): Don't avoid killing loop
6000         pre-headers for the sake of the old RTL loop optimizer.
6001         * Makefile.in: Remove all references to loop.o.
6002
6003         * doc/invoke.texi: Remove all references to -floop-optimize
6004         and -frerun-loop-opt.
6005
6006 2006-02-26  Zack Weinberg  <zackw@panix.com>
6007
6008         * doc/md.texi (Machine Constraints): Refer to all files with paths
6009         relative to gcc directory (i.e. config/CPU/file).  Add missing
6010         @table @code ... @end table to M32C subsection.
6011
6012 2006-02-26  Roger Sayle  <roger@eyesopen.com>
6013
6014         * fold-const.c (fold_binary) <BIT_XOR_EXPR>: Fold (X & 1) ^ 1 as
6015         (X & 1) == 0.
6016         <BIT_AND_EXPR>: Fold (X ^ 1) & 1 and ~X & 1 as (X & 1) == 0.
6017
6018 2006-02-26  Roger Sayle  <roger@eyesopen.com>
6019             James A. Morrison  <phython@gcc.gnu.org>
6020
6021         PR middle-end/21137
6022         * fold-const.c (fold_binary) <EQ_EXPR>: Fold ((X>>C1)&C2) eq/ne 0,
6023         when C2 is a power of two, as either (X&(C2<<C1)) eq/ne 0 if the
6024         new constant C2<<C1, or as (X<0) or (X,false) depending upon the
6025         signedness of the shift operation.
6026
6027 2006-02-26  Dorit Nuzman  <dorit@il.ibm.com>
6028
6029         PR tree-optimization/26359
6030         * tree-ssa-alias.c (new_type_alias): Set fields for new tag.
6031
6032 2006-02-25  Roger Sayle  <roger@eyesopen.com>
6033
6034         * simplify-rtx.c (simplify_relational_operation_1): Simplify
6035         (X^Y) == 0 as X == Y and (X^Y) != 0 as X != Y.  Simplify (X^Y) == Y
6036         as X == 0, and some symmetry related transformations.
6037         Simplify (X^C1) == C2 as X == (C1^C2).  Split long comment line.
6038
6039 2006-02-25  Roger Sayle  <roger@eyesopen.com>
6040
6041         PR middle-end/23673
6042         * fold-const.c (fold_binary) <EQ_EXPR>: Fold (X^Y) == 0 as X == Y
6043         and (X^Y) != 0 as X != Y.  Fold (X^Y) == Y as X == 0, and some
6044         symmetry related transformations.  Fold (X^C1) == C2 as
6045         X == (C1^C2).
6046
6047 2006-02-25  Juergen Weigert  <jw@suse.de>
6048         Richard Guenther  <rguenther@suse.de>
6049
6050         * scan-decls.c (scan_decls): Don't fetch new statement after CPP_EOF.
6051
6052 2006-02-24  Adam Nemet  <anemet@caviumnetworks.com>
6053
6054         * combine.c (gen_lowpart_or_truncate): Call
6055         simplify_gen_unary(TRUNCATE, ...) instead of gen_rtx_TRUNCATE.
6056
6057 2006-02-24  Diego Novillo  <dnovillo@redhat.com>
6058
6059         * doc/invoke.texi: Move -fopenmp description to "Options for
6060         Code Generation".
6061         Remove reference to -lgomp.
6062
6063 2006-02-24  David Edelsohn  <edelsohn@gnu.org>
6064
6065         * doc/install.texi: Require GNU tar version 1.14.
6066
6067 2006-02-24  Geoffrey Keating  <geoffk@apple.com>
6068
6069         * doc/tm.texi (Run-time Target): Document C_COMMON_OVERRIDE_OPTIONS.
6070         * doc/invoke.texi (C++ Dialect Options): Document
6071         -fno-use-cxa-get-exception-ptr.
6072         * configure.ac: Define DEFAULT_USE_CXA_ATEXIT to 2 not 1.
6073         * configure: Regenerate.
6074         * c.opt (fuse-cxa-get-exception-ptr): New.
6075         * c-opts.c (c_common_handle_option): Handle
6076         OPT_fuse_cxa_get_exception_ptr.
6077         * c-common.c (flag_use_cxa_atexit): Update documentation.
6078         (flag_use_cxa_get_exception_ptr): New.
6079         * c-common.h (flag_use_cxa_get_exception_ptr): New.
6080         * config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): Improve
6081         documentation.
6082         (C_COMMON_OVERRIDE_OPTIONS): New.
6083
6084 2006-02-24  Roger Sayle  <roger@eyesopen.com>
6085
6086         PR middle-end/24952
6087         * combine.c (try_combine): Explicitly check whether GET_CODE is
6088         a SET or a CLOBBER, instead on checking that it isn't a USE.
6089
6090 2006-02-24  Roger Sayle  <roger@eyesopen.com>
6091
6092         * fold-const.c (fold_comparison): New subroutine of fold_binary
6093         containing transformations common to both the equality and
6094         ordering relational operators, factored out of fold_binary.
6095         (fold_binary): Separate out the equality operators (EQ_EXPR
6096         and NE_EXPR) from the ordering operators (LT_EXPR, GT_EXPR,
6097         LE_EXPR and GE_EXPR), calling fold_comparison to perform the
6098         transformations common to both.
6099         (fold_div_compare): Fix latent bugs in the previously unreachable
6100         LT_EXPR and GE_EXPR cases.
6101
6102 2006-02-24  David Edelsohn  <edelsohn@gnu.org>
6103
6104         * config/rs6000/rs6000.c (rs6000_init_builtins): Change
6105         decl libname for clog to __clog on AIX.
6106
6107         * config/rs6000/xcoff.h (MAX_OFILE_ALIGNMENT): Define.
6108
6109 2006-02-24  Alan Modra  <amodra@bigpond.net.au>
6110
6111         PR target/26453
6112         * config/rs6000/rs6000.c (rs6000_output_function_epilogue): Don't
6113         output traceback table for thunks.  Localise rs6000_stack_info call.
6114
6115 2006-02-23  Roger Sayle  <roger@eyesopen.com>
6116             Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
6117
6118         * gthr-posix.h (__gthrw): Fix typo in comment.
6119
6120 2006-02-23  Geoffrey Keating  <geoffk@apple.com>
6121
6122         * doc/cpp.texi (Character sets): Document that we do support
6123         input files to be in any character set.
6124
6125 2006-02-23  Jeff Law  <law@redhat.com>
6126
6127         * tree.h (PHI_ARG_NONZERO): Remove.
6128         * tree-phinodes.c (add_phi_arg): No longer initialize PHI_ARG_NONZERO.
6129         (remove_phi_arg_num): No longer copy PHI_ARG_NONZERO from the old
6130         node to the new node.
6131
6132         PR tree-optimization/26425
6133         * tree-vrp.c (vrp_visit_assignment): If the LHS's type has a NULL
6134         min/max, then assume its varying.
6135
6136 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
6137
6138         PR rtl-optimization/26316
6139         * rtlanal.c (enum may_trap_p_flags): New.
6140         (may_trap_p_1): Take flags instead of unaligned_mems argument.  Ignore
6141         MEM_NOTRAP_P if flags & MTP_AFTER_MOVE.
6142         (may_trap_p, may_trap_or_fault_p): Pass flags to may_trap_p_1.
6143         (may_trap_after_code_motion_p): New function.
6144         * loop-invariant.c (find_identical_invariants): Fix dump formating.
6145         (find_invariant_insn): Use may_trap_after_code_motion_p.
6146         * rtl.h (may_trap_after_code_motion_p): Declare.
6147
6148 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
6149
6150         * emit-rtl.c (immed_double_const): Cleanup.
6151
6152 2006-02-23  Daniel Berlin  <dberlin@dberlin.org>
6153
6154         Fix PR tree-optimization/26376
6155         * tree-ssa-structalias.c (find_func_aliases): Use get_id_for_tree,
6156         remove assert.
6157
6158 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
6159
6160         PR middle-end/26412
6161         * gimplify.c (omp_add_variable): Guard variable size decl test with
6162         DECL_SIZE (decl) check.
6163
6164 2006-02-23  Richard Guenther  <rguenther@suse.de>
6165
6166         PR middle-end/26439
6167         * tree-ssa-structalias.c (find_func_aliases): Handle complex types
6168         like aggregate types.
6169
6170 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
6171
6172         * configure.ac: Add --with{,out}-long-double-128 configure option.
6173         (TARGET_DEFAULT_LONG_DOUBLE_128): New test.
6174         * configure: Rebuilt.
6175         * config.in: Rebuilt.
6176         * doc/install.texi (Options specification): Document
6177         --with-long-double-128.
6178
6179         * config/rs6000/linux.h [TARGET_DEFAULT_LONG_DOUBLE_128]
6180         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
6181         * config/rs6000/linux64.h [TARGET_DEFAULT_LONG_DOUBLE_128]
6182         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
6183
6184 2006-02-23  Aldy Hernandez  <aldyh@redhat.com>
6185
6186         * config/s390/s390.c (override_options): Handle
6187         TARGET_DEFAULT_LONG_DOUBLE_128.
6188
6189         * config/alpha/alpha.c (override_options): Handle
6190         TARGET_DEFAULT_LONG_DOUBLE_128.
6191
6192         * config/sparc/sparc.c (sparc_override_options): Handle
6193         TARGET_DEFAULT_LONG_DOUBLE_128.
6194
6195 2006-02-22  Daniel Jacobowitz  <dan@codesourcery.com>
6196
6197         * Makefile.in (stmp-fixinc): Use real-$(INSTALL_HEADERS_DIR).
6198         (real-install-headers-tar, real-install-headers-cpio)
6199         (real-install-headers-cp): New targets.
6200
6201 2006-02-22  Richard Sandiford  <richard@codesourcery.com>
6202
6203         * tree.h (variable_section): Delete.
6204         * varasm.c (variable_section): Delete.
6205
6206 2006-02-22  Paolo Bonzini  <bonzini@gnu.org>
6207
6208         * install.texi: Add notes on install.texi2html.
6209         (Building in parallel): Do not use footnotes.
6210
6211 2006-02-21  Aldy Hernandez  <aldyh@redhat.com>
6212
6213         PR libgomp/26234
6214         * doc/install.texi (Configuration): Document --disable-libgomp.
6215
6216 2006-02-21  Geoffrey Keating  <geoffk@apple.com>
6217
6218         * config/i386/darwin.h (DWARF2_FRAME_REG_OUT): New.
6219
6220 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
6221
6222         * config/i386/sse.md (vec_extractv2df_1_sse): New.
6223         (vec_extractv2df_0_sse): New.
6224
6225 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
6226
6227         * defaults.h (CFA_FRAME_BASE_OFFSET): Define.
6228         * config/ia64/ia64.h (CFA_FRAME_BASE_OFFSET): Override.
6229         * doc/tm.texi (CFA_FRAME_BASE_OFFSET): Document.
6230         * dwarf2out.c (build_cfa_loc): New offset parameter.  Add it
6231         to the result of the expression.
6232         (def_cfa_1): Adjust.
6233         (frame_pointer_cfa_offset): Rename to...
6234         (frame_pointer_fb_offset): ... this.  Adjust all uses.
6235         (convert_cfa_to_loc_list): Rename to...
6236         (convert_cfa_to_fb_loc_list): ... this.  New offset parameter.
6237         Pass it on to build_cfa_loc.
6238         (compute_frame_pointer_to_cfa_displacement): Rename to...
6239         (compute_frame_pointer_to_fb_displacement): ... this.  New
6240         offset parameter.  Use it in computation.
6241         (gen_subprogram_die): Compute cfa_fb_offset with the new
6242         macro, and use it to compute the fb loc list and the
6243         displacement.
6244
6245 2006-02-21  Bernd Schmidt  <bernd.schmidt@analog.com>
6246
6247         * config/bfin/predicates.md (cc_operand): Delete predicate.  All uses
6248         replaced with register_operand.
6249         * config/bfin/bfin.c (bfin_register_move_cost): Moving CC to any
6250         non-DREG is expensive.
6251         * config/bfin/bfin.h (FIXED_REGISTERS): CC isn't fixed.
6252         * config/bfin/bfin.md (movbi): Fix constraints and template for moves
6253         involving memory.
6254
6255 2006-02-21  Joseph S. Myers  <joseph@codesourcery.com>
6256
6257         * doc/install.texi2html: Use set -e.
6258
6259 2006-02-21  Richard Sandiford  <richard@codesourcery.com>
6260
6261         * doc/tm.texi (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
6262         (ASM_OUTPUT_SHARED_LOCAL): Delete.
6263         * doc/invoke.texi (-fshared-data): Delete.
6264         * common.opt (fshared-data): Delete.
6265         * varasm.c (asm_emit_uninitialised): Remove flag_shared_data handling.
6266         (assemble_static_space): Remove #if 0 code.
6267         * system.h (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
6268         (ASM_OUTPUT_SHARED_LOCAL): Poison.
6269         * config/cris/cris.h: Remove FIXME.
6270
6271 2006-02-21  Paolo Bonzini  <bonzini@gnu.org>
6272
6273         * doc/sourcebuild.texi (Front End Directory): No more double-colon
6274         hooks.
6275
6276 2006-02-21  Jakub Jelinek  <jakub@redhat.com>
6277
6278         PR middle-end/26379
6279         * combine.c (simplify_shift_const_1): Disable nested shifts
6280         optimization for vector shifts.
6281
6282 2006-02-20  Roger Sayle  <roger@eyesopen.com>
6283
6284         PR tree-optimization/26361
6285         * tree-vrp.c (extract_range_from_unary_expr): Handle NEGATE_EXPR
6286         of unsigned integer types.
6287
6288 2006-02-20  Sebastian Pop  <pop@cri.ensmp.fr>
6289
6290         * tree-chrec.c (eq_evolutions_p): New.
6291         * tree-chrec.h (eq_evolutions_p): Declared.
6292         * tree-data-ref.c: Fix formatting.
6293         (datadep_stats, dependence_stats): New.
6294         (gcd): Moved...
6295         (print_direction_vector): New.
6296         (dump_data_dependence_relation): Use print_direction_vector.
6297         (object_analysis, create_data_ref): Handle COMPONENT_REF.
6298         (compute_subscript_distance): Static.
6299         (initialize_data_dependence_relation): Static.  Get the number
6300         of loops surrounding the references from the callers, and initialize
6301         DDR_SIZE_VECT to nb_loops.  Use both base_addr_differ_p and
6302         base_object_differ_p analyzers.
6303         (analyze_ziv_subscript, analyze_siv_subscript_cst_affine,
6304         compute_overlap_steps_for_affine_1_2,
6305         analyze_subscript_affine_affine): Count the classified dependences.
6306         Print a message when a test failed.
6307         (can_use_analyze_subscript_affine_affine): New.
6308         (analyze_siv_subscript): Compute the data dependences on symbolic
6309         scevs that verify can_use_analyze_subscript_affine_affine.
6310         (chrec_steps_divide_constant_p): Returns true, false, or unknown.
6311         (analyze_miv_subscript): Update use of chrec_steps_divide_constant_p.
6312         Handle symbolic scevs.
6313         (analyze_overlapping_iterations): Let symbolic affine scevs to be
6314         analyzed.
6315         (subscript_dependence_tester): Moved...
6316         (build_classic_dist_vector, build_classic_dir_vector): Don't use
6317         lambda_vector_clear on newly allocated vectors.  Get nb_loops from
6318         DDR_SIZE_VECT instead of getting it in parameter.
6319         (subscript_dependence_tester): ... here.  Take as a parameter
6320         loop_nest_depth.  Call build_classic_dist_vector and
6321         build_classic_dir_vector.
6322         (compute_affine_dependence): Update subscript_dependence_tester
6323         parameters.  Update datadep_stats counters.  Call
6324         compute_subscript_distance.
6325         (compute_self_dependence): Save the dist and dir vectors.  Call
6326         compute_subscript_distance.
6327         (ddr_p, DEF_VEC_P(ddr_p), DEF_VEC_ALLOC_P(ddr_p,heap)): Moved...
6328         (compute_all_dependences): Reorder parameters as they were before
6329         conversion to VEC.  Pass nb_loops and loop_nest_depth.  Don't call
6330         compute_subscript_distance.  Update the use of
6331         compute_affine_dependence and initialize_data_dependence_relation.
6332         (find_data_references_in_loop): Handle COMPONENT_REF.
6333         (compute_data_dependences_for_loop): Initialize dependence_stats.
6334         Don't call build_classic_dist_vector and build_classic_dir_vector.
6335         Update the parameters of initialize_data_dependence_relation and
6336         compute_all_dependences.  Print the statistics from datadep_stats.
6337         (analyze_all_data_dependences): Static.  Not used until the pass for
6338         checking the data dependences is contributed.
6339         * tree-data-ref.h (ddr_p, DEF_VEC_P(ddr_p),
6340         DEF_VEC_ALLOC_P(ddr_p,heap)): ... here.
6341         (initialize_data_dependence_relation, compute_affine_dependence,
6342         analyze_all_data_dependences, compute_subscript_distance): Removed.
6343         (print_direction_vector): New.
6344         * lambda.h (gcd): ... here.
6345         (lambda_vector_gcd): Moved here from gcd_vector.
6346         * lambda-code.c (gcd, gcd_vector): Removed.
6347         (lambda_compute_target_space): Use lambda_vector_gcd.  Fix formatting.
6348         * Makefile.in (tree-vect-patterns.o): Depends on TREE_DATA_REF_H.
6349
6350 2006-02-20  Diego Novillo  <dnovillo@redhat.com>
6351
6352         * ipa-type-escape.c: Tidy some comments and white space.
6353         * tree-ssa-operands.c: Likewise.
6354
6355 2006-02-20  Andrew Pinski  <pinskia@physics.uc.edu>
6356
6357         PR tree-opt/25879
6358         * tree-pretty-print.c (debug_tree_chain): Walk the chains.
6359         (dump_decl_name): Do not walk the decl tree chains.
6360         * tree-pass.h (TDF_CHAIN): Remove.
6361
6362 2006-02-20  Rafael Ávila de Espíndola  <rafael.espindola@gmail.com>
6363
6364         * Makefile.in (C): Remove
6365         (PROTO): Remove
6366         (.PHONY): Remove C and PROTO
6367
6368 2006-02-20  Roger Sayle  <roger@eyesopen.com>
6369
6370         PR middle-end/26236
6371         * doc/c-tree.texi (INTEGER_TYPE): Remove reference to the now
6372         deprecated CHAR_TYPE tree code.
6373
6374 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
6375
6376         * configure.ac (target_list): Add install-info, dvi, html.
6377         * configure: Regenerate.
6378
6379         * ada/Make-lang.in, cp/Make-lang.in, fortran/Make-lang.in,
6380         java/Make-lang.in, objc/Make-lang.in, objcp/Make-lang.in,
6381         treelang/Make-lang.in: Do not use double-colon rules.
6382
6383 2006-02-20  Daniel Berlin  <dberlin@dberlin.org>
6384
6385         * tree.h (struct tree_memory_tag): Add is_used_alone member.
6386         (TMT_USED_ALONE): New macro.
6387         * tree-pass.h (PROP_tmt_usage): New property.
6388         (TODO_update_tmt_usage): New todo.
6389         * tree-ssa-alias.c (updating_used_alone): New variable.
6390         (recalculate_used_alone): New function.
6391         (compute_may_aliases): Set updating_used_alone, call
6392         recalculate_used_alone.
6393         * tree-sra.c (pass_sra): Note that this pass destroys
6394         PROP_tmt_usage, and add TODO_update_tmt_usage.
6395         * tree-ssa-forwprop.c (pass_forwprop): Ditto.
6396         * tree-flow.h (updating_used_alone): Prototype.
6397         (recalculate_used_alone): Ditto.
6398         * passes.c (execute_todo): Add code to set updating_used_alone,
6399         and call recalculate.
6400         * tree-ssa-operands.c (add_virtual_operand): Only append bare def
6401         for clobber if used alone, and add assert to verify used_alone
6402         status.
6403
6404 2006-02-20  Angel Nunez Mencias  <anunez@de.ibm.com>
6405
6406         * config/s390/s390.c (legitimize_pic_address): Assertions checking
6407         for non tls symbols added.
6408         (legitimize_address): Do nothing for PLUS expressions if one of the
6409         addends is a tls symbol reference.
6410
6411 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
6412
6413         PR bootstrap/25476
6414
6415         * Makefile.in (LDFLAGS): Define from autoconf substitution.
6416
6417         * Makefile.in (BOOTSTRAPPING): New.
6418         (quickstrap): New definition if BOOTSTRAPPING=yes.
6419
6420         * Makefile.in (CONFIG_LANGUAGES): Substitute all_selected_languages.
6421         * configure.ac: Substitute all_selected_languages with the languages
6422         that were configured.  For all the other variables except
6423         lang_specs_files, include all the languages in the tree.
6424         * configure: Regenerate.
6425
6426         * Makefile.in (stmp-fixinc): Copy includes from the prev-gcc directory,
6427         if there is one.  Run the commands to run fixincludes in the same
6428         subshell.
6429
6430         * doc/makefile.texi: Document new makefile targets from toplevel bootstrap.
6431         * doc/install.texi: Document exact conventions for searching target tools.
6432         Document --with-build-time-tools.  Document toplevel bootstrap.  Document
6433         something more about building an Ada cross-compiler.  Don't list GNU Make
6434         requirements which affect all platforms.
6435
6436 2006-02-19  Roger Sayle  <roger@eyesopen.com>
6437
6438         PR middle-end/19543
6439         * varasm.c (compare_constant) <INTEGER_CST>: Integer constants are
6440         only equivalent if the have both the same mode and precision.
6441
6442 2006-02-20  Ben Elliston  <bje@au.ibm.com>
6443
6444         * doc/tree-ssa.texi (Interfaces): Describe low vs. high GIMPLE.
6445
6446 2006-02-19  Roger Sayle  <roger@eyesopen.com>
6447             Steven Bosscher  <stevenb.gcc@gmail.com>
6448
6449         * gcse.c (want_to_gcse_p): On STACK_REGS targets, look through
6450         constant pool references to identify stack mode constants.
6451         * rtlanal.c (constant_pool_constant_p): New predicate to check
6452         whether operand is a floating point constant in the pool.
6453         * rtl.h (constant_pool_constant_p): Prototype here.
6454         * loop.c (scan_loop): Avoid hoisting constants from the constant
6455         pool on STACK_REGS targets.
6456         (load_mems): Likewise.
6457         * loop-invariant.c (get_inv_cost): Make hoisting constant pool
6458         loads into x87 registers expensive in terms of register pressure.
6459
6460 2006-02-19  Roger Sayle  <roger@eyesopen.com>
6461
6462         * gthr-posix.h: On Tru64, map __gthr_foo as a weak reference to
6463         __foo and not foo when _PTHREAD_USE_MANGLED_NAMES_ is defined.
6464
6465 2006-02-19  David Edelsohn  <edelsohn@gnu.org>
6466
6467         * config/rs6000/xcoff.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
6468         * config/rs6000/rs6000.c (rs6000_xcoff_asm_output_anchor): Define.
6469
6470 2006-02-19  Daniel Berlin  <dberlin@dberlin.org>
6471
6472         * doc/invoke.texi: Document -fipa-pta.
6473         * common.opt: Add ipa-pta option.
6474         * tree-ssa-structalias.c (DONT_PROPAGATE_WITH_ANYTHING): Removed.
6475         (do_sd_constraint): Enable DONT_PROPAGATE_WITH_ANYTHING code.
6476         (do_ds_constraint): Ditto.
6477         (get_constraint_for): Only add to referenced_vars if
6478         referenced_vars exists.
6479         (insert_into_field_list): Rewrite to do this unsorted.
6480         (insert_into_field_list_sorted): Rename old insert_into_field_list
6481         to this.
6482         (create_function_info_for): Use insert_into_field_list_sorted.
6483         (create_variable_info_for): Rewrite so it uses unsorted version,
6484         since the field list is sorted.
6485         (intra_create_variable_infos): Only add to referenced_vars if
6486         referenced_vars exists.
6487         (ipa_pta_execute): Init heapvars, and delete when done.
6488         * passes.c (init_optimization_passes): Add call to pass_ipa_pta.
6489
6490 2006-02-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
6491
6492         * doc/install.texi: Add missing `@samp'.
6493
6494 2006-02-18  Andrew Pinski <pinskia@physics.uc.edu>
6495
6496         * config/rs6000/darwin.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P):
6497         Use the arguments.
6498
6499 2006-02-18  Mark Wielaard  <mark@klomp.org>
6500
6501         * doc/contrib.texi (Contributors): Add classpath/libgcj hackers
6502         who added new 4.1 features, bug fixes and integration support.
6503
6504 2006-02-18  David Edelsohn  <edelsohn@gnu.org>
6505
6506         PR target/26350
6507         * config/rs6000/rs6000.md (extenddftf2): Force 0.0 to validized
6508         MEM for ABI_V4 pic.
6509
6510 2006-02-18  Richard Sandiford  <richard@codesourcery.com>
6511
6512         * cselib.c (cselib_init): Change RTX_SIZE to RTX_CODE_SIZE.
6513         * emit-rtl.c (copy_rtx_if_shared_1): Use shallow_copy_rtx.
6514         (copy_insn_1): Likewise.  Don't copy each field individually.
6515         Reindent.
6516         * read-rtl.c (apply_macro_to_rtx): Use RTX_CODE_SIZE instead
6517         of RTX_SIZE.
6518         * reload1.c (eliminate_regs): Use shallow_copy_rtx.
6519         * rtl.c (rtx_size): Rename variable to...
6520         (rtx_code_size): ...this.
6521         (rtx_size): New function.
6522         (rtx_alloc_stat): Use RTX_CODE_SIZE instead of RTX_SIZE.
6523         (copy_rtx): Use shallow_copy_rtx.  Don't copy each field individually.
6524         Reindent.
6525         (shallow_copy_rtx_stat): Use rtx_size instead of RTX_SIZE.
6526         * rtl.h (rtx_code_size): New variable.
6527         (rtx_size): Change from a variable to a function.
6528         (RTX_SIZE): Rename to...
6529         (RTX_CODE_SIZE): ...this.
6530
6531         PR target/9703
6532         PR tree-optimization/17106
6533         * doc/tm.texi (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Document.
6534         (Anchored Addresses): New section.
6535         * doc/invoke.texi (-fsection-anchors): Document.
6536         * doc/rtl.texi (SYMBOL_REF_IN_BLOCK_P, SYMBOL_FLAG_IN_BLOCK): Likewise.
6537         (SYMBOL_REF_ANCHOR_P, SYMBOL_FLAG_ANCHOR): Likewise.
6538         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): Likewise.
6539         * hooks.c (hook_bool_mode_rtx_false): New function.
6540         * hooks.h (hook_bool_mode_rtx_false): Declare.
6541         * gengtype.c (create_optional_field): New function.
6542         (adjust_field_rtx_def): Add the "block_sym" field for SYMBOL_REFs when
6543         SYMBOL_REF_IN_BLOCK_P is true.
6544         * target.h (output_anchor, use_blocks_for_constant_p): New hooks.
6545         (min_anchor_offset, max_anchor_offset): Likewise.
6546         (use_anchors_for_symbol_p): New hook.
6547         * toplev.c (compile_file): Call output_object_blocks.
6548         (target_supports_section_anchors_p): New function.
6549         (process_options): Check that -fsection-anchors is only used on
6550         targets that support it and when -funit-at-a-time is in effect.
6551         * tree-ssa-loop-ivopts.c (prepare_decl_rtl): Only create DECL_RTL
6552         if the decl doesn't have one.
6553         * dwarf2out.c: Remove instantiations of VEC(rtx,gc).
6554         * expr.c (emit_move_multi_word, emit_move_insn): Pass the result
6555         of force_const_mem through use_anchored_address.
6556         (expand_expr_constant): New function.
6557         (expand_expr_addr_expr_1): Call it.  Use the same modifier when
6558         calling expand_expr for INDIRECT_REF.
6559         (expand_expr_real_1): Pass DECL_RTL through use_anchored_address
6560         for all modifiers except EXPAND_INITIALIZER.  Use expand_expr_constant.
6561         * expr.h (use_anchored_address): Declare.
6562         * loop-unroll.c: Don't declare rtx vectors here.
6563         * explow.c: Include output.h.
6564         (validize_mem): Call use_anchored_address.
6565         (use_anchored_address): New function.
6566         * common.opt (-fsection-anchors): New switch.
6567         * varasm.c (object_block_htab, anchor_labelno): New variables.
6568         (hash_section, object_block_entry_eq, object_block_entry_hash)
6569         (use_object_blocks_p, get_block_for_section, create_block_symbol)
6570         (use_blocks_for_decl_p, change_symbol_section): New functions.
6571         (get_variable_section): New function, split out from assemble_variable.
6572         (make_decl_rtl): Create a block symbol if use_object_blocks_p and
6573         use_blocks_for_decl_p say so.  Use change_symbol_section if the
6574         symbol has already been created.
6575         (assemble_variable_contents): New function, split out from...
6576         (assemble_variable): ...here.  Don't output any code for
6577         block symbols; just pass them to place_block_symbol.
6578         Use get_variable_section and assemble_variable_contents.
6579         (get_constant_alignment, get_constant_section, get_constant_size): New
6580         functions, split from output_constant_def_contents.
6581         (build_constant_desc): Create a block symbol if use_object_blocks_p
6582         says so.  Or into SYMBOL_REF_FLAGS.
6583         (assemble_constant_contents): New function, split from...
6584         (output_constant_def_contents): ...here.  Don't output any code
6585         for block symbols; just pass them to place_section_symbol.
6586         Use get_constant_section and get_constant_alignment.
6587         (force_const_mem): Create a block symbol if use_object_blocks_p and
6588         use_blocks_for_constant_p say so.  Or into SYMBOL_REF_FLAGS.
6589         (output_constant_pool_1): Add an explicit alignment argument.
6590         Don't switch sections here.
6591         (output_constant_pool): Adjust call to output_constant_pool_1.
6592         Switch sections here instead.  Don't output anything for block symbols;
6593         just pass them to place_block_symbol.
6594         (init_varasm_once): Initialize object_block_htab.
6595         (default_encode_section_info): Keep the old SYMBOL_FLAG_IN_BLOCK.
6596         (default_asm_output_anchor, default_use_aenchors_for_symbol_p)
6597         (place_block_symbol, get_section_anchor, output_object_block)
6598         (output_object_block_htab, output_object_blocks): New functions.
6599         * target-def.h (TARGET_ASM_OUTPUT_ANCHOR): New macro.
6600         (TARGET_ASM_OUT): Include it.
6601         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): New macro.
6602         (TARGET_MIN_ANCHOR_OFFSET, TARGET_MAX_ANCHOR_OFFSET): New macros.
6603         (TARGET_USE_ANCHORS_FOR_SYMBOL_P): New macro.
6604         (TARGET_INITIALIZER): Include them.
6605         * rtl.c (rtl_check_failed_block_symbol): New function.
6606         * rtl.h: Include vec.h.  Declare heap and gc rtx vectors.
6607         (block_symbol, object_block): New structures.
6608         (rtx_def): Add a block_symbol field to the union.
6609         (BLOCK_SYMBOL_CHECK): New macro.
6610         (rtl_check_failed_block_symbol): Declare.
6611         (SYMBOL_FLAG_IN_BLOCK, SYMBOL_FLAG_ANCHOR): New SYMBOL_REF flags.
6612         (SYMBOL_REF_IN_BLOCK_P, SYMBOL_REF_ANCHOR_P): New predicates.
6613         (SYMBOL_FLAG_MACH_DEP_SHIFT): Bump by 2.
6614         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): New accessors.
6615         * output.h (output_section_symbols): Declare.
6616         (object_block): Name structure.
6617         (place_section_symbol, get_section_anchor, default_asm_output_anchor)
6618         (default_use_anchors_for_symbol_p): Declare.
6619         * Makefile.in (RTL_BASE_H): Add vec.h.
6620         (explow.o): Depend on output.h.
6621         * config/rs6000/rs6000.c (TARGET_MIN_ANCHOR_OFFSET): Override default.
6622         (TARGET_MAX_ANCHOR_OFFSET): Likewise.
6623         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Likewise.
6624         (rs6000_use_blocks_for_constant_p): New function.
6625
6626 2006-02-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
6627
6628         * doc/install.texi (hppa*-hp-hpux*): Update for 4.1.0.
6629
6630 2006-02-18  Andrew Pinski  <pinskia@physics.uc.edu>
6631
6632         PR tree-opt/25680
6633         * tree-ssa-ccp.c (ccp_fold): Handle store CCP of REALPART_EXPR and
6634         IMAGPART_EXPR.
6635
6636 2006-02-18  Diego Novillo  <dnovillo@redhat.com>
6637
6638         * tree-flow.h (struct var_ann_d): Rename field is_alias_tag to
6639         is_aliased.
6640         Update all users.
6641
6642 2006-02-18  Jakub Jelinek  <jakub@redhat.com>
6643
6644         PR middle-end/26334
6645         * stmt.c (decl_overlaps_hard_reg_set_p): Use DECL_HARD_REGISTER
6646         instead of DECL_REGISTER.
6647
6648 2006-02-18  Olivier Hainque  <hainque@adacore.com>
6649
6650         PR ada/13408
6651         * pa.h (WIDEST_HARDWARE_FP_SIZE): Define.
6652
6653 2006-02-18  Joseph S. Myers  <joseph@codesourcery.com>
6654
6655         PR target/24837
6656         * config.gcc: Define UCLIBC_DEFAULT to 0 or 1.
6657         * opth-gen.awk: Handle Var and InverseMask together.
6658         * config/linux.opt (muclibc, mglibc): Use Var(linux_uclibc).
6659         * config/linux.h: Use #if not #ifdef for testing UCLIBC_DEFAULT.
6660         (TARGET_C99_FUNCTIONS): Test OPTION_GLIBC not TARGET_GLIBC.
6661         (CHOOSE_DYNAMIC_LINKER): Give an error for -mglibc and -muclibc
6662         used together.
6663         (UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
6664         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
6665         * config/alpha/linux-elf.h (GLIBC_DYNAMIC_LINKER,
6666         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
6667         LINUX_DYNAMIC_LINKER): Define.
6668         (ELF_DYNAMIC_LINKER): Define to LINUX_DYNAMIC_LINKER.
6669         * config/alpha/linux.h (TARGET_C99_FUNCTIONS): Define to
6670         TARGET_GLIBC.
6671         * config/cris/linux.h (GLIBC_DYNAMIC_LINKER): Define.
6672         (CRIS_LINK_SUBTARGET_SPEC): Pass a -dynamic-linker option.
6673         * config/frv/linux.h (GLIBC_DYNAMIC_LINKER): Define.
6674         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
6675         (TARGET_C99_FUNCTIONS): Don't define.
6676         * config/i386/linux.h (DYNAMIC_LINKER): Rename to
6677         GLIBC_DYNAMIC_LINKER.
6678         (SUBTARGET_EXTRA_SPECS): Use LINUX_DYNAMIC_LINKER.
6679         * config/i386/linux64.h (GLIBC_DYNAMIC_LINKER32,
6680         GLIBC_DYNAMIC_LINKER64): Define.
6681         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
6682         LINUX_DYNAMIC_LINKER64.
6683         * config/ia64/linux.h (GLIBC_DYNAMIC_LINKER): Define.
6684         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
6685         * config/m32r/linux.h (GLIBC_DYNAMIC_LINKE): Define.
6686         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
6687         * config/m68k/linux.h (GLIBC_DYNAMIC_LINKER): Define.
6688         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
6689         * config/mips/linux64.h (GLIBC_DYNAMIC_LINKER32,
6690         GLIBC_DYNAMIC_LINKER64, GLIBC_DYNAMIC_LINKERN32,
6691         UCLIBC_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKERN32): Define.
6692         (LINK_SPEC): Use LINUX_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKER64
6693         and LINUX_DYNAMIC_LINKER32.
6694         * config/mn10300/linux.h (GLIBC_DYNAMIC_LINKER): Define.
6695         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
6696         * config/pa/pa-linux.h (GLIBC_DYNAMIC_LINKER): Define.
6697         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
6698         * config/rs6000/linux.h (TARGET_C99_FUNCTIONS): Define to
6699         TARGET_GLIBC.
6700         * config/rs6000/linux64.h (TARGET_C99_FUNCTIONS): Likewise.
6701         (GLIBC_DYNAMIC_LINKER32, GLIBC_DYNAMIC_LINKER64,
6702         UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
6703         CHOOSE_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
6704         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
6705         (LINK_OS_LINUX_SPEC32): Use LINUX_DYNAMIC_LINKER32.
6706         (LINK_OS_LINUX_SPEC64): Use LINUX_DYNAMIC_LINKER64.
6707         * config/rs6000/sysv4.h (GLIBC_DYNAMIC_LINKER,
6708         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
6709         LINUX_DYNAMIC_LINKER): Define.
6710         (LINK_OS_LINUX_SPEC): Use LINUX_DYNAMIC_LINKE.
6711         * config/s390/linux.h (GLIBC_DYNAMIC_LINKER32,
6712         GLIBC_DYNAMIC_LINKER64): Define.
6713         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
6714         LINUX_DYNAMIC_LINKER64.
6715         * config/sh/linux.h (GLIBC_DYNAMIC_LINKER): Define.
6716         (SUBTARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
6717         * config/sparc/linux.h (GLIBC_DYNAMIC_LINKER,
6718         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
6719         LINUX_DYNAMIC_LINKER): Define.
6720         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
6721         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
6722         * config/sparc/linux64.h (GLIBC_DYNAMIC_LINKER32,
6723         GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER32,
6724         UCLIBC_DYNAMIC_LINKER64, CHOOSE_DYNAMIC_LINKER,
6725         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
6726         (LINK_ARCH32_SPEC): Use LINUX_DYNAMIC_LINKER32.
6727         (LINK_ARCH64_SPEC, LINK_SPEC): Use LINUX_DYNAMIC_LINKER64.
6728         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
6729         * config/xtensa/linux.h (GLIBC_DYNAMIC_LINKER): Define.
6730         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
6731         * doc/invoke.texi (-muclibc): Remove caveat about supported
6732         targets.
6733
6734 2006-02-17  Grigory Zagorodnev <grigory_zagorodnev@linux.intel.com>
6735
6736         * doc/cpp.texi (__TIMESTAMP__): Document.
6737
6738 2006-02-17  Roger Sayle  <roger@eyesopen.com>
6739
6740         PR middle-end/25600
6741         * fold-const.c (fold_binary): Fold (X >> C) != 0 into X < 0 when
6742         C is one less than the width of X (and related transformations).
6743         * simplify-rtx.c (simplify_unary_operation_1): Transform
6744         (neg (lt x 0)) into either (ashiftrt X C) or (lshiftrt X C)
6745         depending on STORE_FLAG_VALUE, were C is one less then the
6746         width of X.
6747
6748 2006-02-17  Daniel Berlin  <dberlin@dberlin.org>
6749
6750         Fix PR tree-optimization/26341
6751         * tree-ssa-operands.c (add_virtual_operand): Remove assert
6752         about NAME_MEMORY_TAG's.
6753
6754 2006-02-17  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
6755
6756         PR target/26255
6757         * pa.md: Create separate HI and QI move patterns for 32-bit and 64-bit
6758         with hardware float support, and software float support.  Add fcpy
6759         alternative to hardware patterns.  Add alternatives to copy between
6760         general and floating-point registers to the 32-bit pattern.
6761         * pa.c (pa_secondary_reload): Don't abort if reload tries to find a
6762         secondary reload to load a QI or HI mode constant into a floating
6763         point register.
6764         * pa32-regs.h (VALID_FP_MODE_P): Allow QImode and HImode.
6765         * pa64-regs.h (VALID_FP_MODE_P): Likewise.
6766
6767 2006-02-17  Andrew Pinski  <pinskia@physics.uc.edu>
6768
6769         PR target/26272
6770         * config/rs6000/darwin.md (load_macho_picbase_si): Add
6771         pc to the pattern.
6772         (load_macho_picbase_di): Likewise.
6773
6774 2006-02-16  Jeff Law  <law@redhat.com>
6775
6776         * tree-vrp.c (set_value_range_to_nonnegative): New function.
6777         (vrp_expr_computes_nonnegative, ssa_name_nonnegative_p): Likewise.
6778         (ssa_name_nonzero_p): Likewise.
6779         (get_value_range): Return NULL if VRP is not running.
6780         (extract_range_from_expr): Fallback to tree_expr_XXX_p if
6781         VRP routines do not discover a range.
6782         (vrp_finalize): Clear VR_VALUE to indicate VRP is not running.
6783         * tree.h (ssa_name_nonzero_p, ssa_name_nonnegative_p): Prototype.
6784         * fold-const.c (tree_expr_nonzero_p): For SSA_NAMEs, query VRP.
6785         (tree_expr_nonnegative_p): Similarly.
6786         * tree-ssa-dom.c (nonzero_vars, nonzero_vars_stack): Remove.
6787         (restore_nonzero_vars_to_original_value): Remove.
6788         (unsafe_associative_fp_binop): Remove.
6789         (tree_ssa_dominator_optimize): Remove initialization and
6790         finalization of nonzero_vars and nonzero_vars_stack.
6791         (dom_opt_initialize_block): No longer push marker on
6792         nonzero_vars_stack.
6793         (dom_opt_finalize_block): No longer call
6794         restore_nonzero_vars_to_original_value.
6795         (record_equivalences_from_phis): No longer look for
6796         nonzero PHI arguments.
6797         (cprop_into_successor_phis): No longer propagate nonzero
6798         property into PHI arguments.  Lose unused argument.  Caller
6799         updated.
6800         (record_equivalences_from_stmt): No longer record nonzero
6801         values for SSA_NAMEs.
6802         (lookup_avail_expr): No longer use nonzero_vars.
6803
6804         * stor-layout.c (set_sizetype): Set TYPE_MAX_VALUE properly
6805         for sizetype when sizetype is unsigned.
6806
6807 2006-02-16  Denis Nagorny <denis_nagorny@linux.intel.com>
6808
6809         PR rtl-optimization/25603
6810         * reload.c (reg_inc_found_and_valid_p): New. Check REG_INC note.
6811         (regno_clobbered_p): Use it. Reusing SETS argument for REG_INC case.
6812         * reload1.c (choose_reload_regs): Added call of regno_clobbered_p
6813         with new meaning of SETS.
6814
6815 2006-02-16  Joseph S. Myers  <joseph@codesourcery.com>
6816
6817         PR target/20353
6818         PR target/24578
6819         PR target/24837
6820         * config/linux.opt: New file.
6821         * config/linux.h (CHOOSE_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER,
6822         LINUX_DYNAMIC_LINKER): Define.
6823         (TARGET_C99_FUNCTIONS): Define depending on TARGET_GLIBC.
6824         * config.gcc (*-*-linux*): Define extra_options.
6825         (*-*-*uclibc*): Define UCLIBC_DEFAULT.
6826         (arm*-*-linux-gnueabi): Change to arm*-*-linux-*eabi.
6827         * config/arm/linux-eabi.h (LINUX_TARGET_INTERPRETER): Change to
6828         GLIBC_DYNAMIC_LINKER.
6829         * config/arm/linux-elf.h (LINUX_TARGET_INTERPRETER): Likewise.
6830         (LINUX_TARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
6831         * config/mips/linux.h (GLIBC_DYNAMIC_LINKER): Define.
6832         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
6833         * doc/invoke.texi (GNU/Linux Options): New section.
6834
6835 2006-02-16  Eric Botcazou  <ebotcazou@libertysurf.fr>
6836
6837         * config/sparc/sparc.md (setjmp): Rewrite.
6838         (setjmp_32): Delete.
6839         (setjmp_64): Likewise.
6840
6841 2006-02-16  Daniel Berlin <dberlin@dberlin.org>
6842
6843         * tree-ssa-operands.c (access_can_touch_variable): Fix typo in
6844          previous change.
6845
6846 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
6847
6848         * loop-invariant.c (invariant_for_use, check_dependencies): Fail for
6849         read-write uses.
6850
6851 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
6852
6853         PR rtl-optimization/26296
6854         * Makefile.in (loop-invariant.c): Add except.h dependency.
6855         * loop-invariant.c: Include except.h.
6856         (find_invariant_insn): Ignore insns satisfying can_throw_internal.
6857
6858 2005-02-16  Paul Brook  <paul@codesourcery.com>
6859
6860         * reload1.c (emit_reload_insns): Invalidate dead input registers used
6861         for reloads.
6862
6863 2006-02-16  Bernd Schmidt  <bernd.schmidt@analog.com>
6864
6865         PR rtl-optimization/25636
6866         * local-alloc.c (update_equiv_regs): Lose a bogus rtx_equal_p test
6867         when deciding whether an insn is an initializing insn.
6868
6869 2006-02-15 Daniel Berlin  <dberlin@dberlin.org>
6870
6871         * tree.c (init_ttree): Add STRUCT_FIELD_TAG handling.
6872         (tree_code_size): Ditto.
6873         * tree.h (struct tree_memory_tag): Remove parent_var.
6874         (struct tree_struct_field_tag): New.
6875         (SFT_OFFSET): New.
6876         (SFT_SIZE): New.
6877         (union tree_node): Add sft member.
6878         * tree-ssa-alias.c (get_tmt_for): Don't handle TYPE_READONLY
6879         specially here.
6880         (create_sft): Add size and offset argument, set SFT_OFFSET and
6881         SFT_SIZE.
6882         (create_overlap_variables_for): Update for SFT_OFFSET/SFT_SIZE.
6883         * treestruct.def: Add TS_STRUCT_FIELD_TAG.
6884         * tree-flow-inline.h (get_subvar_at): Update for
6885         SFT_OFFSET/SFT_SIZE.
6886         (var_can_have_subvars): Ditto.
6887         (overlap_subvar): Ditto.
6888         * print-tree.c (print_node): Print out interesting things for
6889         SFT's.
6890         * tree-flow.h (struct subvar): Remove offset and size members.
6891         * tree-ssa-operands.c (get_expr_operands): Update for
6892         get_indirect_ref_operands changes.
6893         (get_indirect_ref_operands): Call add_virtual_operand instead of
6894         add_stmt_operand.  Only recurse on base var if requested.
6895         (access_can_touch_variable): New function.
6896         (add_stmt_operand): Split virtual operand handling into ...
6897         (add_virtual_operand): Here.  Add offset, size, and for_clobber
6898         arguments.  Prune alias sets.
6899         (add_call_clobber_ops): Call add_virtual_operand.
6900
6901 2006-02-15  Jakub Jelinek  <jakub@redhat.com>
6902
6903         PR middle-end/26300
6904         * combine.c (make_extraction): Bail out if ORIG_POS is negative.
6905
6906         * tree.h (struct tree_omp_clause): Use OMP_CLAUSE_CODE rather
6907         than TREE_CODE as index into omp_clause_num_ops array.
6908
6909 2006-02-15  Uttam Pawar  <uttamp@us.ibm.com>
6910
6911         PR rtl-optimization/26184
6912         * modulo-sched.c (generate_reg_moves): Free bitmap vector
6913         uses_of_defs.
6914         * modulo-sched.c (sms_schedule): Free g_arr pointer.
6915         * modulo-sched.c (sms_schedule_by_order): Free bitmap pointers
6916         must_precede, must_follow and tobe_scheduled.
6917
6918         PR other/26147
6919         * opts.c (common_handle_option): Free new_option pointer.
6920         * df-core.c (df_analyze): Free postorder pointer.
6921
6922 2006-02-15  Rafael Ávila de Espíndola <rafael.espindola@gmail.com>
6923
6924         * Makefile.in: Fix the examples about the use of stamps
6925
6926 2006-02-15  Michael Matz  <matz@suse.de>
6927
6928         PR middle-end/22275
6929
6930         * stor-layout.c (layout_decl): Zero-width bitfields aren't
6931         influenced by maximum_field_alignment or DECL_PACKED.
6932         (update_alignment_for_field): Ditto.
6933         (place_field): Ditto.
6934         * doc/extend.texi (<#pragma pack>, <Type Attributes>): Document
6935         this behaviour.
6936
6937 2006-02-15  Paolo Bonzini  <bonzini@gnu.org>
6938
6939         * cfg.c (dump_flow_info): Get dump flags as an additional parameter.
6940         (debug_flow_info): Pass it.
6941         * alias.c (rest_of_handle_cfg): Adjust calls to dump_flow_info.
6942         * bb-reorder.c (reorder_basic_blocks): Likewise.
6943         * cfgcleanup.c (rest_of_handle_jump2): Likewise.
6944         * cse.c (rest_of_handle_cse, rest_of_handle_cse2): Likewise.
6945         * flow.c (life_analysis, recompute_reg_usage): Likewise.
6946         * gcse.c (gcse_main, bypass_jumps): Likewise.
6947         * ifcvt.c (rest_of_handle_if_conversion): Likewise.
6948         * local-alloc.c (rest_of_handle_local_alloc): Likewise.
6949         * loop-init.c (rtl_loop_init, rtl_loop_done): Likewise.
6950         * profile.c (compute_branch_probabilities, branch_prob): Likewise.
6951         * rtl.h (dump_flow_info): Adjust prototype.
6952         * tracer.c (rest_of_handle_tracer, tracer): Likewise.
6953         * var-tracking.c (variable_tracking_main): Likewise.
6954         * passes.c (execute_todo): Obey TDF_BLOCKS for RTL.
6955         * tree-dump.c (enable_rtl_dump_file): Enable the details and blocks
6956         options.
6957
6958 2006-02-15  Marcin Dalecki <martin@dalecki.de>
6959
6960         * tree-ssa-dom.c (dom_thread_across_edge): fix tag expression
6961         construction.
6962
6963 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
6964
6965         PR tree-optimization/26209
6966         * tree-ssa-loop.c (pass_scev_cprop): Add TODO_cleanup_cfg.
6967         * tree-cfgcleanup.c (cleanup_control_flow): Remove dead
6968         eh edges.
6969         * tree-cfg.c (replace_uses_by): Do not alter cfg.
6970
6971 2006-02-14  Roger Sayle  <roger@eyesopen.com>
6972
6973         PR middle-end/23670
6974         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Optimize (X&Y)|Y into
6975         (X,Y) and the corresponding symmetry related transformations.
6976         (fold_binary) <BIT_AND_EXPR>: Likewise, optimize (X|Y)&Y into
6977         (X,Y) and its symmetry related transformations.
6978
6979 2006-02-14  Roger Sayle  <roger@eyesopen.com>
6980
6981         * dojump.c (do_compare_rtx_and_jump): Also handle multi-word GTU
6982         and GEU.
6983
6984 2006-02-14  Adam Nemet  <anemet@caviumnetworks.com>
6985
6986         * simplify-rtx.c (simplify_subreg): Combine SUBREG and TRUNCATE.
6987
6988 2006-02-14  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
6989
6990         PR bootstrap/26053
6991         * configure.ac (HAVE_COMDAT_GROUP): Don't assume non-GNU linkers
6992         support COMDAT group.
6993         * configure: Regenerate.
6994
6995 2006-02-14  Roger Sayle  <roger@eyesopen.com>
6996
6997         PR middle-end/26279
6998         PR middle-end/26280
6999         PR middle-end/26283
7000         * dojump.c (do_compare_rtx_and_jump): Handle multi-word LE.
7001
7002 2006-02-14  Daniel Berlin  <dberlin@dberlin.org>
7003
7004         Fix PR tree-optimization/26260
7005
7006         * doc/invoke.texi (max-fields-for-field-sensitive): Document
7007         param.
7008         * params.h (MAX_FIELDS_FOR_FIELD_SENSITIVE): New.
7009         * params.def (PARAM_MAX_FIELDS_FOR_FIELD_SENSITIVE): Ditto.
7010         * tree-ssa-structalias.c (create_variable_info_for): Use
7011         MAX_FIELDS_FOR_FIELD_SENSITIVE.
7012
7013 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
7014
7015         * doc/invoke.texi (-fprefetch-loop-arrays, -fprefetch-loop-arrays-rtl):
7016         Document.
7017         * tree-ssa-loop-niter.c (number_of_iterations_ne,
7018         number_of_iterations_lt, number_of_iterations_cond): Remember the shape
7019         of the ending condition.
7020         * tree-ssa-loop-manip.c: Include params.h.
7021         (build_if_stmt, can_unroll_loop_p, determine_exit_conditions,
7022         tree_unroll_loop): New functions.
7023         * tree-pass.h (pass_loop_prefetch): Declare.
7024         * loop.c (rest_of_handle_loop_optimize): Test for
7025         -fprefetch-loop-arrays-rtl.
7026         * tree-scalar-evolution.h (affine_iv): Moved to tree-flow.h.
7027         * timevar.def (TV_TREE_PREFETCH): New timevar.
7028         * tree-ssa-loop.c (tree_ssa_loop_prefetch, gate_tree_ssa_loop_prefetch,
7029         pass_loop_prefetch): New.
7030         * tree-cfgcleanup.c: Include tree-scalar-evolution.h.
7031         (cleanup_tree_cfg_loop): Call scev_reset.
7032         * common.opt (fprefetch-loop-arrays-rtl): Add.
7033         * tree-ssa-loop-prefetch.c: New file.
7034         * tree-outof-ssa.c (struct value_expr_d): Add expr_vars field.
7035         (new_temp_expr_table): Initialize expr_vars.
7036         (free_temp_expr_table): Cleanup expr_vars.
7037         (check_replaceable, find_replaceable_in_bb): Prevent accumulating
7038         expressions from being merged into one.
7039         * tree-flow.h (affine_iv): Moved from tree-scalar-evolution.h.
7040         (struct tree_niter_desc): Add control, bound and cmp fields.
7041         (tree_ssa_prefetch_arrays, can_unroll_loop_p, tree_unroll_loop):
7042         Declare.
7043         * Makefile.in (tree-ssa-loop-prefetch.o): Add.
7044         (tree-cfgcleanup.o): Add SCEV_H dependency.
7045         (tree-ssa-loop-manip.o): Add PARAMS_H dependency.
7046         * passes.c (init_optimization_passes): Add pass_loop_prefetch.
7047
7048 2006-02-14  Richard Guenther  <rguenther@suse.de>
7049
7050         PR tree-optimization/26258
7051         * tree-ssa-structalias.c (find_func_aliases): Handle aggregates
7052         in PHI argument processing.
7053
7054 2006-02-13  Adam Nemet  <anemet@caviumnetworks.com>
7055
7056         * simplify-rtx.c (simplify_unary_operation_1) <TRUNCATE>: Return
7057         new expression in the requested machine mode.
7058
7059 2006-02-13  Roger Sayle  <roger@eyesopen.com>
7060
7061         * optabs.c (expand_abs): Don't call do_jump_by_parts_greater_rtx
7062         directly, instead let do_compare_rtx_and_jump handle this for us.
7063         * expr.c (expand_expr_real_1): Likewise.
7064         * dojump.c (do_jump_by_parts_greater_rtx): Make static.  Move
7065         before do_jump_by_parts_greater.
7066         (do_jump_by_parts_greater): Move after do_jump_by_parts_greater_rtx.
7067         * expr.h (do_jump_by_parts_greater_rtx): Delete prototype.
7068
7069 2006-02-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
7070
7071         * pa/quadlib.c: Use defines instead of enum qfcmp_magic.
7072
7073 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
7074
7075         PR rtl-optimization/26235
7076         * loop-invariant.c (hash_invariant_expr_1): Handle 'i' and 'n' formats.
7077         (invariant_expr_equal_p): Handle 'i' and 'n' formats.  Fail on unknown
7078         format.
7079
7080 2006-02-13  Jeff Law  <law@redhat.com>
7081
7082         * tree-vrp.c (extract_range_from_binary_expr): Remove handling of
7083         TRUTH_XOR_EPR.
7084
7085 2006-02-13  Jakub Jelinek  <jakub@redhat.com>
7086
7087         PR middle-end/26092
7088         * gimplify.c (gimplify_call_expr): Don't call get_callee_fndecl
7089         twice if decl is a builtin.  When trying again, call get_callee_fndecl
7090         first to verify it is still a builtin.
7091
7092 2006-02-13  Geoffrey Keating  <geoffk@apple.com>
7093
7094         * dwarf2out.c (base_type_die): Don't add AT_name here.
7095         (subrange_type_die): Don't add AT_name here.
7096         (modified_type_die): Rearrange code flow.  Do add AT_name here.
7097
7098 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
7099
7100         PR rtl-optimization/26247
7101         PR rtl-optimization/26248
7102         * loop-invariant.c (may_assign_reg_p): Do not allow VOIDmode.
7103
7104 2006-02-13  Richard Sandiford  <richard@codesourcery.com>
7105
7106         * config/floatunditf.c: Use if __LDBL_MANT_DIG__ == 113.
7107         * config/fixtfdi.c: Likewise.
7108         * config/fixunstfdi.c: Likewise.
7109         * config/floatditf.c: Likewise.
7110
7111 2006-02-13  Roger Sayle  <roger@eyesopen.com>
7112
7113         PR middle-end/24427
7114         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Transform (X&C1)|C2
7115         into (X,C2) if C1 is a subset of the bits of C2.  Transform
7116         (X&C1)|C2 into X|C2 if C1|C2 == ~0.  Canonicalize (X&C1)|C2 as
7117         (X&(C1&~C2))|C2.
7118         <BIT_AND_EXPR>: Canonicalize (X|C1)&C2 as (X&C2)|(C1&C2).
7119
7120 2006-02-13  Josh Conner  <jconner@apple.com>
7121
7122         PR target/25376
7123         * varasm.c (function_section): Check for section name before
7124         calling select_section on targets that define
7125         USE_SELECT_SECTION_FOR_FUNCTIONS.  On other targets, use
7126         unlikely_text_section instead of hot_function_section if
7127         first_function_block_is_cold.
7128
7129 2006-02-13  J"orn Rennecke <joern.rennecke@st.com>
7130
7131         PR middle-end/25335
7132         * reload1.c (gen_reload): Also use find_replacement in UNARY_P case.
7133
7134 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
7135
7136         PR rtl-optimization/26222
7137         * function.c (assign_stack_temp_for_type): Do not reuse stack slots
7138         after tree->rtl expansion.
7139         * loop-invariant.c (move_invariant_reg): Use force_operand on rhs
7140         before passing it to emit_move_insn.
7141
7142 2006-02-12  Gabriel Dos Reis  <gdr@integrable-solutions.net>
7143
7144         * doc/invoke.texi (-Write-strings): Document that it is enabled by
7145         default.
7146         * c.opt (-Wwrite-strings): Declare variable warn_write_strings.
7147         Clarify documentation.
7148         * c-common.h (warn_write_strings): Remove.
7149         * c-common.c (warn_write_strings): Likewise.
7150         * c-opts.c (c_common_init_options): Enable -Wwrite-strings by
7151         default for C++.
7152
7153 2006-02-12  Roger Sayle  <roger@eyesopen.com>
7154
7155         PR middle-end/25724
7156         * dojump.c (do_jump): Call do_compare_rtx_and_jump.
7157         (do_jump_parts_zero_rtx): New function renamed from
7158         do_jump_parts_equality_rtx.  Made static.  Add a mode argument.
7159         (do_jump_parts_equality_rtx): New function split out from
7160         do_jump_parts_equality.  Old implementation renamed as above.
7161         Call do_jump_parts_zero_rtx if either operand is zero.
7162         (do_jump_parts_equality): Call do_jump_parts_equality_rtx to
7163         do all of the heavy lifting.
7164         (do_compare_rtx_and_jump): Handle multi-word comparisons by
7165         calling either do_jump_by_parts_greater_rtx or
7166         do_jump_by_parts_equality_rtx.
7167         * expr.h (do_jump_by_parts_equality_rtx): Remove prototype.
7168         * expmed.c (do_cmp_and_jump): Now multi-word optimization has
7169         moved to do_compare_rtx_and_jump, call it directly.
7170         * stmt.c (do_jump_if_equal): Remove static prototype.  Add a
7171         mode argument.  Call do_compare_rtx_and_jump.
7172         (emit_case_nodes): Update calls to do_jump_if_equal.
7173
7174 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
7175
7176         PR rtl-optimization/26225
7177         * loop-invariant.c (may_assign_reg_p): Do not allow BLKmode operands.
7178
7179 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
7180
7181         PR rtl-optimization/26232
7182         * loop-invariant.c (find_invariant_insn): Ignore insns that set CC0.
7183
7184 2006-02-11  Jason Merrill  <jason@redhat.com>
7185
7186         PR tree-opt/24365
7187         * tree-inline.c (declare_return_variable): Just don't use the
7188         modify target if it's a gimple complex reg and the return slot
7189         isn't.
7190
7191 2006-02-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
7192
7193         * doc/contrib.texi: Update my entry.
7194
7195 2006-02-10  Geoffrey Keating  <geoffk@apple.com>
7196
7197         * config/i386/darwin.h (DBX_REGISTER_NUMBER): Define.
7198
7199 2006-02-10  Diego Novillo  <dnovillo@redhat.com>
7200
7201         * tree-inline.c (estimate_num_insns_1): Make OpenMP directives
7202         expensive.
7203
7204 2006-02-10  Zdenek Dvorak <dvorakz@suse.cz>
7205
7206         * doc/invoke.texi (-floop-optimize2): Removed.
7207         * toplev.c (process_options): Remove handling of flag_loop_optimize2.
7208         * loop-init.c (gate_handle_loop2): Do not test flag_loop_optimize2.
7209         Test flag_branch_on_count_reg only if HAVE_doloop_end.
7210         * common.opt (floop-optimize2): Removed.
7211         (fmove-loop-invariants): Enabled by default.
7212
7213 2006-02-10  Sebastian Pop  <pop@cri.ensmp.fr>
7214
7215         * tree-if-conv.c (combine_blocks): Free the result of
7216         get_loop_exit_edges.
7217
7218 2006-02-10  Jeff Law  <law@redhat.com>
7219
7220         * fold-const.c (tree_expr_nonzero_p): Fix thinko.
7221
7222         PR tree-optimization/26213
7223         * tree-ssa-threadedge.c (simplify_control_stmt_condition): Do not
7224         loop trying to follow SSA_NAME_VALUE chains.
7225
7226 2006-02-10  Richard Guenther  <rguenther@suse.de>
7227
7228         * tree-dfa.c (get_ref_base_and_extent): When computing maxsize
7229         deal with structures that end in implicitly variable sized arrays.
7230
7231 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
7232
7233         PR rtl-optimization/24762
7234         * df-scan.c (df_bb_refs_record): Record correct registers defined on
7235         eh edges.
7236
7237 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
7238
7239         * tree-ssa-loop-ivopts.c (struct loop_data, loop_data): Removed.
7240         (struct ivopts_data): Add regs_used field.
7241         (tree_ssa_iv_optimize_init): Do not allocate aux fields for loops.
7242         (ivopts_global_cost_for_size, determine_set_costs): Use data->regs_used
7243         instead of loop_data->regs_used;
7244         (free_loop_data): Do not free aux fields for loops.
7245         (tree_ssa_iv_optimize): Do not pass loops to tree_ssa_iv_optimize_init
7246         and tree_ssa_iv_optimize_finalize.
7247
7248 2006-02-09  Kaz Kojima  <kkojima@gcc.gnu.org>
7249
7250         * config/sh/sh.h (FUNCTION_VALUE): Don't handle CHAR_TYPE.
7251
7252 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
7253
7254         PR target/26141
7255         * sh.c (sh_gimplify_va_arg_expr): Don't change the result type when
7256         computing the effective result type.
7257
7258 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
7259
7260         PR inline-asm/16194
7261         * tree.h (decl_overlaps_hard_reg_set_p) Don't declare.
7262         (tree_overlaps_hard_reg_set): Declare.
7263         * stmt.c (decl_overlaps_hard_reg_set_p): Now static.  Change return
7264         type and signature to match function type expected by walk_tree.
7265         (tree_overlaps_hard_reg_set): New function.
7266         (decl_conflicts_with_clobbers_p): Rename to:
7267         (tree_conflicts_with_clobbers_p).  Take HARD_REG_SET * argument.
7268         Use tree_overlaps_hard_reg_set.  Changed caller.
7269         * doc/tm.texi (TARGET_MD_ASM_CLOBBERS): Replace
7270         decl_overlaps_hard_reg_set_p with tree_overlaps_hard_reg_set.
7271         * cris.c (cris_md_asm_clobbers): Likewise.
7272
7273 2006-02-09  Bernd Schmidt  <bernd.schmidt@analog.com>
7274
7275         * reload1.c (emit_input_reload_insns): Delete code that tries to
7276         inherit using find_equiv_reg.
7277
7278 2006-02-09  Gabriel Dos Reis  <gdr@integrable-solutions.net>
7279
7280         * c-common.h (flag_const_strings): Don't declare.
7281         * c-common.c (flag_const_strings): Remove.
7282         * c.opt (fconst_strings): Remove.
7283         * c-opts.c (c_common_handle_option): Remove <OPT_fconst_strings>.
7284         <OPT_Wwrite_strings>: Don't set flag_const_strings.
7285         (c_common_init_options): Don't set flag_const_strings.
7286         * doc/invoke.texi (-fno-const-strings): Remove documentation.
7287
7288 2006-02-09  Richard Earnshaw  <richard.earnshaw@arm.com>
7289
7290         * arm.md (tlobits_cbranch): New pattern.
7291         * arm.h (arm_select_cc_mode): For thumb, only return CC_Nmode if
7292         testing a single bit.
7293
7294 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
7295
7296         PR tree-opt/26179
7297         * tree-ssa-pre.c (create_component_ref_by_pieces):
7298         Handle RETURN_DECL like VAR_DECL.
7299
7300 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
7301
7302         PR middle-end/26134
7303         * fold-const.c (fold_indirect_ref_1): Fold
7304         "*(foo *)&complexfoo" to "__real__ complexfoo"
7305         and "((foo*)&complexfoo)[1]" to "__imag__ complexfoo".
7306
7307 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
7308
7309         * tree-flow-inline.h (var_can_have_subvars):
7310         Volatile variables should not have subvariables.
7311
7312 2006-02-09  Diego Novillo  <dnovillo@redhat.com>
7313
7314         PR 26180
7315         * tree-vrp.c (vrp_int_const_binop): Detect overflow when
7316         multiplying unsigned values.
7317         Tidy comments.
7318
7319 2006-02-09  Eric Botcazou  <ebotcazou@libertysurf.fr>
7320
7321         * config/sparc/sparc.c (tls_call_delay): Fix oversight.
7322
7323 2006-02-08  Jason Merrill  <jason@redhat.com>
7324
7325         PR c++/25979
7326         * tree.def: Elaborate on difference from MODIFY_EXPR.
7327         * doc/c-tree.texi (INIT_EXPR): Likewise.
7328         * gimplify.c (internal_get_tmp_var): Use INIT_EXPR.
7329         (gimplify_decl_expr, gimplify_init_ctor_eval): Likewise.
7330         (gimplify_target_expr): Likewise.
7331         (gimplify_cond_expr): Remove target handling.
7332         (gimplify_modify_expr): Don't clobber INIT_EXPR code here.
7333         (gimplify_expr): Clobber it here.
7334         (gimplify_modify_expr_rhs): Push assignment into COND_EXPR here.
7335         Do return slot optimization if we have an INIT_EXPR.
7336
7337         PR tree-opt/24365
7338         * tree-inline.c (declare_return_variable): Also clear
7339         DECL_COMPLEX_GIMPLE_REG_P as needed in the modify_dest case.
7340
7341         PR c++/16405
7342         * gimplify.c (gimplify_modify_expr_rhs): Re-enable *& handling.
7343
7344         PR middle-end/22439
7345         * gimplify.c (gimplify_one_sizepos): Fix typo.
7346
7347 2006-02-08  Jeff Law  <law@redhat.com>
7348
7349         PR tree-optimization/21417
7350         * tree-ssa-threadedge.c (thread_across_edge): Reject threading
7351         across a backedge if the control statement at the end of the
7352         block is data dependent on other statements in the same block.
7353         (record_temporary_equivalences_from_stmts): Remove over-conservative
7354         test for threading across backedges.
7355
7356         * tree-ssa-dce.c (remove_dead_statement): When removing a dead
7357         control statement, handle all three special cases in the same
7358         manner as they all have the same desired solution.  No longer
7359         special case edge flag updating when the post dominator is
7360         the exit block.
7361
7362 2006-02-08  Roger Sayle  <roger@eyesopen.com>
7363
7364         * tree.def (CHAR_TYPE): Remove.
7365         * dbxout.c (dbxout_type): Delete dead handling of CHAR_TYPE.
7366         * dwarf2out.c (base_type_die, is_base_type): Likewise.
7367         (gen_type_die) <ARRAY_TYPE>: Remove handling of CHAR_TYPE arrays.
7368         (gen_string_type_die): Delete unreachable function.
7369
7370         * tree-pretty-print.c (dump_generic_node): Don't handle CHAR_TYPE.
7371         * tree.c (build_int_cst_wide, type_contains_placeholder_1,
7372         type_hash_eq, variably_modified_type_p, walk_type_fields): Likewise.
7373         * tree.h (NUMERICAL_TYPE_CHECK, INTEGRAL_TYPE_P): Likewise.
7374         * builtins.c (type_to_class): Likewise.
7375         * fold-const.c (fold_convert, build_range_check,
7376         merge_ranges): Likewise.
7377         * expr.c (count_type_elements): Likewise.
7378         * c-pretty-print.c (pp_c_type_specifier): Likewise.
7379         * stor-layout.c (layout_type): Likewise.
7380         * ipa-type-escape.c (type_to_consider): Likewise.
7381         * gimplify.c (omp_firstprivatize_type_sizes,
7382         gimplify_type_sizes): Likewise.
7383         * explow.c (promote_mode): Likewise.
7384         * tree-sra.c (is_sra_scalar_type): Likewise.
7385         * varasm.c (output_constant): Likewise.
7386         * tree-inline.c (remap_type_1): Likewise.
7387         * convert.c (convert_to_pointer, convert_to_real,
7388         convert_to_integer, convert_to_complex): Likewise.
7389
7390 2006-02-08  Daniel Berlin  <dberlin@dberlin.org>
7391
7392         * df-scan.c (df_def_record_1): A set destination may
7393         be a parallel regardless of mode.
7394
7395 2006-02-08  Roger Sayle  <roger@eyesopen.com>
7396
7397         PR target/22209
7398         * config/mips/mips.h (MIN_UNITS_PER_WORD): Don't define for libgcc.
7399         * config/mips/_tilib.c: Remove.
7400         * config/fixtfdi.c: New libgcc source file.
7401         * config/fixunstfdi.c: New source file.
7402         * config/floatditf.c: New source file.
7403         * config/floatunditf.c: New souce file.
7404         * config/mips/t-iris6 (LIB2FUNCS_EXTRA): Include the new source
7405         files above instead of config/mips/_tilib.c.
7406         * config/mips/t-linux64 (LIB2FUNCS_EXTRA): Likewise.
7407
7408 2006-02-08  Jeff Law  <law@redhat.com>
7409
7410         PR tree-optimization/26169
7411         * tree-vrp.c (execute_vrp): Perform any queued SSA updates before
7412         threading jumps.
7413
7414 2006-02-08  Zdenek Dvorak <dvorakz@suse.cz>
7415
7416         * df.h (DF_REG_SIZE): Return the length of the initialized
7417         part of the array.
7418
7419 2006-02-08  Nathan Sidwell  <nathan@codesourcery.com>
7420
7421         * config/m68k/lb1sf68.asm (__divsf3, __divdf3, __mulsf3,
7422         __muldf3): Return a correctly signed zero.
7423
7424 2006-02-08  Paolo Bonzini  <bonzini@gnu.org>
7425
7426         * passes.c (register_one_dump_file): Accept the current properties
7427         instead of pass number.  Adjust call to dump_register.  Remove
7428         duplicated code.
7429         (register_dump_files): Now a wrapper around...
7430         (register_dump_files_1): ... this one.  Do not modify the pass
7431         structure.
7432         (next_pass_1): Cosmetic fix.
7433         (execute_todo): Keep second parameter only.  Use curr_properties
7434         instead of fetching it from the pass structure.  Check and set
7435         last_verified.
7436         (execute_one_pass): Handle TODO_set_props.  Use curr_properties
7437         instead of fetching it from the pass structure.  Fix calls to
7438         execute_todo.  Update curr_properties and initialize .vcg RTL dump
7439         after running the pass.  Reset last_verified.
7440         * tree-dump.c (dump_files): Renumber consecutively.  Put .cgraph dump
7441         at the beginning.
7442         (FIRST_AUTO_NUMBERED_DUMP): New.
7443         (dump_register): Remove "num" parameter, assign it within the
7444         function.
7445         (get_dump_file_name): Modify template for dumps.
7446         * tree-dump.h (dump_register): Adjust prototype.
7447         * tree-pass.h (enum tree_dump_index): Move cgraph at the beginning.
7448         (PROP_trees): Add PROP_gimple_lomp.
7449         (TODO_set_props): New.
7450         * gimple-low.c (pass_lower_cf): Do not destroy PROP_gimple_lcf.
7451         * tree-eh.c (pass_lower_eh): Do not destroy PROP_gimple_leh.
7452         * cfgexpand.c (pass_expand): Destroy PROP_trees.
7453
7454 2006-02-08  Jakub Jelinek  <jakub@redhat.com>
7455
7456         * config.gcc (sparc-*-linux*): Add sparc/t-linux to tmake_file.
7457         (sparc64-*-linux*): Likewise.
7458         * config/sparc/t-linux64 (SHLIB_MAPFILES): Removed.
7459         * config/sparc/t-linux: New file.
7460         * config/sparc/libgcc-sparc-glibc.ver (__fixtfdi, __fixunstfdi,
7461         __floatditf): Export at GCC_LDBL_3.0 if -m32 -mlong-double-128.
7462         (__divtc3, __multc3, __powitf2): Export at GCC_LDBL_4.0.0 if
7463         -m32 -mlong-double-128.
7464
7465         * config.gcc (alpha*-*-linux*): Add alpha/t-linux to tmake_file.
7466         * config/alpha/t-linux: New file.
7467         * config/alpha/libgcc-alpha-ldbl.ver: New file.
7468
7469         * config/sparc/linux.h (TARGET_OS_CPP_BUILTINS): Define
7470         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128.
7471         (CPP_SUBTARGET_SPEC): Don't add -D__LONG_DOUBLE_128__ here.
7472         * config/sparc/linux64.h (TARGET_OS_CPP_BUILTINS): Define
7473         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128 and TARGET_ARCH32.
7474         (CPP_ARCH32_SPEC): Remove.
7475
7476 2006-02-07  Uttam Pawar  <uttamp@us.ibm.com>
7477
7478         PR tree-optimization/26145
7479         * tree-ssa-loop-unswitch.c (tree_unswitch_single_loop): Free
7480         bbs pointer.
7481
7482 2006-02-07  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
7483
7484         PR target/26109
7485         * pa.c (attr_length_indirect_call): Don't return length 8 for distances
7486         >= 240000 when generating code for SOM runtime.
7487         (output_indirect_call): Don't use "b,l" instruction for indirect calls
7488         to $$dyncall when generating code for SOM runtime..
7489
7490 2006-02-07  Dirk Mueller  <dmueller@suse.com>
7491
7492         PR c++/18150
7493         * doc/invoke.texi (-Wsequence-point): Update documentation
7494         that -Wsequence-point is implemented for C++ as well.
7495
7496 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
7497
7498         * config/sol26.h (CPP_SUBTARGET_SPEC): Accept -pthread.
7499         * config/sol2.h (CPP_SUBTARGET_SPEC): Likewise.
7500         (LIB_SPEC): Likewise.
7501         * doc/invoke.texi (SPARC options): Document -pthread.
7502
7503 2006-02-07  Geoffrey Keating  <geoffk@apple.com>
7504
7505         * config/i386/i386.c (ix86_delegitimize_address): Support Darwin
7506         PIC addresses.
7507
7508 2006-02-07  Roger Sayle  <roger@eyesopen.com>
7509
7510         * config/sparc/sparc.c (sparc_type_code): Don't handle CHAR_TYPE.
7511         Correct comment describing BOOLEAN_TYPE.
7512
7513 2006-02-07  Dirk Mueller  <dmueller@suse.com>
7514
7515         * c.opt: C++ frontend supports -Wdiv-by-zero.
7516         * c-opts.c (c_common_handle_option): Remove dead case.
7517
7518 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
7519
7520         * configure.ac (TLS assembler check): Do not enable TLS by
7521         default on SPARC/Solaris before version 10.
7522         * configure: Regenerate.
7523
7524 2006-02-07  David Edelsohn  <edelsohn@gnu.org>
7525
7526         * doc/invoke.texi (xl-compat): Document conversion and support
7527         routine names.
7528
7529 2006-02-07  Jeff Law  <law@redhat.com>
7530
7531         * tree-vrp.c (find_conditional_asserts): Update comments.
7532         (simplify_stmt_for_jump_threading): New.
7533         (identify_jump_threads, finalize_jump_threads): New.
7534         (vrp_finalize): Call identify_jump_threads.
7535         (execute_vrp): Call finalize_jump_threads.
7536         * tree-ssa-dom.c (struct opt_stats_d): Remove num_iterations field.
7537         (vrp_element, vrp_data, vrp_element_p): Remove.
7538         (vrp_hash_elt, vrp_variables_stack): Remove.
7539         (vrp_hash, vrp_eq, record_range): Remove.
7540         (simplify_cond_and_lookup_avail_expr): Remove.
7541         (extract_range_from_cond): Remove.
7542         (thread_across_edge): Relocated into tree-ssa-threadedge.c.
7543         (simplify_stmt_for_jump_threading): New.
7544         (dom_thread_across_edge): New wrapper.
7545         (tree_ssa_dominator_optimize): No longer initialize or
7546         finalize any of the VRP datastructures.  Remove iteration
7547         step and simplify as a result of removal of iteration step.
7548         (pass_dominator): Perform a cfg cleanup after DOM.
7549         (dom_opt_finalize_block): Use the new common routines
7550         for threading jumps.  Simplify stack management slightly.
7551         No longer need to unwind VRP state.
7552         (record_equivalences_from_incoming_edge): No longer record
7553         VRP information.
7554         (eliminate_redundant_computations): No longer call
7555         simplify_cond_and_lookup_avail_expr.
7556         * tree-flow.h (potentially_threadable_block): Prototype.
7557         (thread_across_edge): Likewise.
7558         * Makefile.in (OBJS-common): Add tree-ssa-threadedge.o
7559         (tree-ssa-threadedge.o): Add dependencies.
7560         * tree-ssa-threadedge.c: New file.
7561         * passes.c (init_optimization_passes): Merge PHIs before
7562         calling VRP.  Run VRP again late in the SSA optimization pipeline.
7563
7564 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
7565
7566         * df-core.c (df_set_blocks): Do not dereference function pointers.
7567         (df_finish1): Likewise.
7568         (df_hybrid_search_forward): Likewise.
7569         (df_hybrid_search_backward): Likewise.
7570         (df_iterative_dataflow): Likewise.
7571         (df_analyze_problem): Likewise.
7572         (df_compact_blocks): Likewise.
7573         (df_dump): Likewise.
7574         * df-scan.c (df_rescan_blocks): Likewise.
7575         (df_record_entry_block_defs): Likewise.
7576
7577         * genconditions.c (write_conditions): Guard the definition of
7578         'insn_conditions' with the check on GCC version.
7579         (write_writer): Guard the traversal 'insn_conditions' with
7580         the check on GCC version.
7581
7582 2006-02-07  Richard Guenther  <rguenther@suse.de>
7583
7584         PR c++/26140
7585         Revert
7586         2006-01-30  Richard Guenther  <rguenther@suse.de>
7587         PR c++/23372
7588         * gimplify.c (gimplify_target_expr): Handle easy cases
7589         without creating a temporary.
7590
7591 2006-02-07  Pete Steinmetz  <steinmtz@us.ibm.com>
7592
7593         * sched-rgn.c (compute_dom_prob_ps, compute_trg_info): Eradicate
7594         use of float in probability computations.  Use edge probabilities
7595         in place of statically computed probabilities.
7596         (min_spec_prob): New static variable.
7597         (schedule_insns): Initialize it.
7598         (GET_SRC_PROB): Removed.
7599         * doc/invoke.texi (min-sched-prob): Renamed to min-spec-prob.
7600
7601 2006-02-07  Alexandre Oliva  <aoliva@redhat.com>
7602
7603         PR debug/24444
7604         * config/ia64/unwind-ia64.c: Revert last change.
7605         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Removed.
7606         (INCOMING_FRAME_SP_OFFSET): Define.
7607
7608 2006-02-06  Roger Sayle  <roger@eyesopen.com>
7609
7610         * config/ia64/ia64.c (hfa_element_mode): Don't handle CHAR_TYPE.
7611
7612 2006-02-07  Ben Elliston  <bje@au.ibm.com>
7613
7614         * config/i386/i386.c (ix86_scalar_mode_supported_p): New.
7615         (TARGET_SCALAR_MODE_SUPPORTED_P): Define hook.
7616         (classify_argument): Handle SDmode, DDmode, TDmode for 64-bit.
7617         (ix86_return_in_memory): Handle TDmode.
7618         (ix86_libcall_value): Handle SDmode, DDmode, TDmode.
7619         (ix86_value_regno): Return non-TDmode decimal float modes in %eax.
7620
7621 2006-02-06  Richard Sandiford  <richard@codesourcery.com>
7622
7623         * reorg.c (dbr_schedule): Use dump_file instead of file.
7624
7625 2006-02-06  Steve Ellcey  <sje@cup.hp.com>
7626
7627         PR target/25917
7628         * config/ia64/predicates.md (extr_len_operand): New predicate.
7629         * config/ia64/ia64.md (extv): Tighten constraints.
7630         (extzv): Ditto.
7631         (*tbit_and_2): Ditto.
7632         (*tbit_and_3): Ditto.
7633         (*tbit_or_2): Ditto.
7634         (*tbit_or_3): Ditto.
7635         (*bit_zero): Ditto.
7636         (*bit_one): Ditto.
7637
7638 2006-02-06  Andrew Pinski  <pinskia@physics.uc.edu>
7639
7640         PR target/23359
7641         * config/i386/i386.md (trap): Use ASM_SHORT instead of .word.
7642
7643 2006-02-06  Zdenek Dvorak <dvorakz@suse.cz>
7644
7645         * tree-vrp.c (execute_vrp): Do not pass dump argument to.
7646         loop_optimizer_init and loop_optimizer_finalize
7647         * tree-ssa-sink.c (execute_sink_code): Ditto.
7648         * tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
7649         * tree-ssa-loop.c (tree_loop_optimizer_init, tree_ssa_loop_init,
7650         tree_ssa_loop_done): Ditto.
7651         * tree-ssa-pre.c (init_pre, fini_pre): Ditto.
7652         * sched-ebb.c: Include output.h.
7653         (schedule_ebbs): Do not use dump argument.
7654         * value-prof.h (struct profile_hooks): Remove profile_dump_file.
7655         * loop.c (loop_dump_stream): Removed.
7656         (loop_optimize, rest_of_handle_loop_optimize): Do not use dump
7657         argument.
7658         (scan_loop, move_movables, find_and_verify_loops, mark_loop_jump,
7659         emit_prefetch_instructions, loop_bivs_find, loop_bivs_check,
7660         final_biv_value, loop_biv_eliminable_p, loop_givs_rescan,
7661         loop_iterations, strength_reduce, record_biv, record_giv,
7662         final_giv_value, check_final_value, check_ext_dependent_givs,
7663         combine_givs, check_dbra_loop, maybe_eliminate_biv, load_mems,
7664         try_copy_prop, loop_delete_insns, try_swap_copy_prop): Use
7665         dump_file instead of loop_dump_stream.
7666         * ddg.c (print_ddg_edge, print_ddg, vcg_print_ddg): Do not call
7667         argument dump_file.
7668         * reorg.c (dbr_schedule, rest_of_handle_delay_slots): Do not use
7669         dump argument.
7670         * flow.c (life_analysis, rest_of_handle_life): Ditto.
7671         * haifa-sched.c: Include output.h
7672         (schedule_insns, sched_init): Do not use dump argument.
7673         * mode-switching.c (optimize_mode_switching): Ditto.
7674         * modulo-sched.c (stats_file): Removed.
7675         (print_node_sched_params): Do not call argument dump_file.
7676         (sms_schedule_by_order, loop_canon_p, sms_schedule,
7677         rest_of_handle_sms): Do not use dump argument.  Use dump_file instead
7678         of stats_file.
7679         * cse.c (cse_main, rest_of_handle_cse, rest_of_handle_cse2): Do not
7680         use dump argument.
7681         * loop-init.c (loop_optimizer_init, loop_optimizer_finalize,
7682         rtl_loop_init, rtl_loop_done): Ditto.
7683         * global.c (global_alloc, rest_of_handle_global_alloc): Ditto.
7684         * predict.c (combine_predictions_for_bb, tree_estimate_probability):
7685         Ditto.
7686         * recog.c (peephole2_optimize, rest_of_handle_peephole2): Ditto.
7687         * lcm.c (pre_edge_lcm, pre_edge_rev_lcm): Ditto.
7688         * regmove.c (fixup_match_1, fixup_match_2, regmove_optimize,
7689         rest_of_handle_regmove, rest_of_handle_stack_adjustments): Ditto.
7690         * emit-rtl.c (renumber_insns): Ditto.
7691         * cfgexpand.c (add_reg_br_prob_note, expand_gimple_cond_expr,
7692         expand_gimple_basic_block, tree_expand_cfg): Ditto.
7693         * regclass.c (regclass): Ditto.
7694         * tree-outof-ssa.c (analyze_edges_for_bb, perform_edge_inserts,
7695         remove_ssa_form, rewrite_out_of_ssa): Ditto.
7696         * reg-stack.c (compensate_edge, compensate_edges, convert_regs_1,
7697         convert_regs_2, convert_regs, reg_to_stack, rest_of_handle_stack_regs):
7698         Ditto.
7699         * sched-rgn.c (schedule_insns, rest_of_handle_sched): Ditto.
7700         * local-alloc.c (rest_of_handle_local_alloc): Do not pass dump_file
7701         to regclass.
7702         * gcse.c (gcse_file, debug_stderr): Removed.
7703         (gcse_main, bypass_jumps, rest_of_handle_jump_bypass,
7704         rest_of_handle_gcse): Do not use dump argument.
7705         (cprop_jump, cprop_insn, do_local_cprop, cprop, find_implicit_sets,
7706         one_cprop_pass, bypass_block, compute_pre_data, insert_insn_end_bb,
7707         pre_edge_insert, pre_insert_copy_insn, pre_delete, one_pre_gcse_pass,
7708         compute_code_hoist_vbeinout, compute_code_hoist_data,
7709         one_code_hoisting_pass, trim_ld_motion_mems, update_ld_motion_stores,
7710         compute_store_table, build_store_vectors, insert_insn_start_bb,
7711         insert_store, remove_reachable_equiv_notes, replace_store_insn,
7712         store_motion): Use dump_file instead of gcse_file.
7713         * ipa-type-escape.c (type_escape_execute): Remove debugging comments.
7714         * profile.c (profile_dump_file): Removed.
7715         (branch_prob): Use dump_file instead of profile_dump_file.
7716         * ipa.c (cgraph_remove_unreachable_nodes): Do not call argument
7717         dump_file.
7718         * tree-ssa-copy.c (dump_copy_of): Ditto.
7719         * rtl-factoring.c (rtl_seqabstr, rest_of_rtl_seqabstr): Do not pass
7720         dump file to life_analysis.
7721         * bt-load.c (branch_target_load_optimize): Ditto.
7722         * cfgcleanup.c (rest_of_handle_jump2): Do not pass dump_file to
7723         renumber_insns.
7724         * rtl.h (cse_main, renumber_insns, schedule_insns, schedule_ebbs,
7725         regclass, dbr_schedule): Declaration changed.
7726         * sched-int.h (sched_init): Declaration changed.
7727         * tree-profile.c (tree_profile_dump_file): Removed.
7728         (tree_profile_hooks): Removed profile_dump_file hook.
7729         * rtl-profile (rtl_profile_dump_file): Removed.
7730         (rtl_profile_hooks): emoved profile_dump_file hook.
7731         * cfgloop.h (loop_optimizer_init, loop_optimizer_finalize): Declaration
7732         changed.
7733         * c-gimplify.c (c_genericize): Do not call local variable dump_file.
7734         * tree-cfg.c (build_tree_cfg): Ditto.
7735         * Makefile.in (haifa-sched.o, sched-ebb.o): Add output.h dependency.
7736         * basic-block.h (life_analysis, pre_edge_lcm, pre_edge_rev_lcm):
7737         Declaration changed.
7738         * config/sh/sh.c (sh_output_mi_thunk): Do not pass dump_file to
7739         life_analysis and schedule_insns.
7740         * config/m68hc11/m68hc11.c (m68hc11_reorg): Do not pass dump_file to
7741         life_analysis.
7742         * config/mt/mt.c (mt_machine_reorg): Do not pass dump_file to
7743         dbr_schedule.
7744         * config/mips/mips.c (mips_reorg): Ditto.
7745         * config/ia64/ia64.c (ia64_reorg): Do not pass dump_file to
7746         schedule_ebbs.
7747
7748 2006-02-06  Aldy Hernandez  <aldyh@redhat.com>
7749
7750         * config/s390/s390.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
7751         (s390_mangle_fundamental_type): New.
7752         * config/s390/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
7753         Define.
7754
7755         * config/alpha/alpha.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
7756         (alpha_mangle_fundamental_type): New.
7757         * config/alpha/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
7758         Define.
7759
7760         * config/sparc/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
7761         Define.
7762         * config/sparc/linux64.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
7763         Define.
7764         * config/sparc/sparc.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
7765         (sparc_mangle_fundamental_type): New.
7766
7767 2006-02-06  Jakub Jelinek  <jakub@redhat.com>
7768
7769         * config.gcc (s390-*-linux*): Add s390/t-linux to tmake_file.
7770         (s390x-*-linux*): Likewise.
7771         * config/s390/t-linux64 (SHLIB_MAPFILES): Removed.
7772         * config/s390/t-linux: New file.
7773
7774 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
7775
7776         * config/i386/sync.md (sync_add<mode>, sync_sub<mode>, sync_ior<mode>,
7777         sync_and<mode>, sync_xor<mode>): Operand 0 is in-out.
7778
7779 2006-02-06  Daniel Berlin  <dberlin@dberlin.org>
7780
7781         * tree-ssa-pre.c (bb_value_sets_t): Add antic_safe_loads.
7782         (ANTIC_SAFE_LOADS): New macro.
7783         (find_or_generate_expression): Add prototype.
7784         (set_contains_value): Allow null set for sake of not always having
7785         to allocate ANTIC_SAFE_LOADS.
7786         (phi_translate): Move placement of AGGREGATE_TYPE_P check.
7787         Allow COMPONENT_REF too.
7788         (valid_in_set): Allow COMPONENT_REF.
7789         Check ANTIC_SAFE_LOADS too.
7790         (compute_antic_aux): Print out ANTIC_SAFE_LOADS.
7791         (compute_rvuse_and_antic_safe): Add ANTIC_SAFE computation, and
7792         rename.
7793         (can_PRE_operation): Add COMPONENT_REF.
7794         (create_component_ref_by_pieces): New function.
7795         (create_expression_by_pieces): Use create_component_ref_by_pieces.
7796         (insert_aux): Move AGGREGATE_TYPE_P check here.
7797         (compute_avail): Set bb local stmt uids.
7798         (pass_pre): Use TODO_update_ssa_only_virtuals.
7799
7800 2006-02-06  Ben Elliston  <bje@au.ibm.com>
7801
7802         * configure.ac: Unconditionally disable decimal float by default.
7803         * configure: Regenerate.
7804
7805 2006-02-06  Ben Elliston  <bje@au.ibm.com>
7806
7807         * read-rtl.c (read_name): Terminate reading on EOF.
7808
7809 2006-02-06  Ben Elliston  <bje@au.ibm.com>
7810
7811         * dfp.c (decimal_real_arithmetic): Change second argument type
7812         from int to enum tree_code. Do not always return true, but now
7813         return result of any call to decimal_do helper functions.
7814         * dfp.h (decimal_real_arithmetic): Update prototype.
7815
7816 2006-02-05  Eric Botcazou  <ebotcazou@libertysurf.fr>
7817
7818         * config/sparc/sol2-bi.h (SPARC_DEFAULT_CMODEL): Set to CM_MEDMID.
7819
7820 2006-02-05  Andrew Pinski  <pinskia@physics.uc.edu>
7821
7822         PR tree-opt/25251
7823         * tree-cfg.c (cleanup_dead_labels): Also don't remove
7824         forced labels.
7825
7826 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
7827
7828         * tree-vrp.c (cfg_loops): Removed.
7829         (adjust_range_with_scev, vrp_visit_assignment, execute_vrp):
7830         Use current_loops instead of cfg_loops.  Pass flags to
7831         loop_optimizer_init.
7832         * cfgloopmanip.c (fix_loop_structure): Update only available
7833         information.
7834         * tree-ssa-loop-ch.c (copy_loop_headers): Pass flags to
7835         loop_optimizer_init.
7836         * modulo-sched.c (build_loops_structure): Removed.
7837         (sms_schedule): Use loop_optimizer_init.
7838         * loop-init.c (loop_optimizer_init): Use flags to determine
7839         which properties of loops to prepare.
7840         (rtl_loop_init): Pass flags to loop_optimizer_init.
7841         * tree-ssa-sink.c (execute_sink_code): Ditto.
7842         * tree-ssa-loop.c (tree_loop_optimizer_init): Ditto.
7843         * tree-ssa-pre.c (init_pre): Ditto.
7844         * cfgloop.h (LOOPS_NORMAL): New.
7845         (loop_optimizer_init): Declaration changed.
7846
7847 2006-02-05  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
7848
7849         * pa/x-ada-hpux10, pa/t-pa-hpux10, pa/t-pa-hpux11: New files.
7850         * config.gcc (hppa[12]*-*-hpux10*): Use pa/t-pa-hpux10 instead of
7851         pa/t-pa.
7852         * config.gcc (hppa[12]*-*-hpux11*): Use pa/t-pa-hpux11 instead of
7853         pa/t-pa.
7854         * config.host (hppa*-*-hpux10*): Use pa/x-ada-hpux10 instead of
7855         pa/x-ada.
7856         * pa/t-pa-hpux: Add lib2funcs.asm and quadlib.c rules.
7857         * pa/t-pa64: Delete quadlib.c rule.
7858         * pa/x-ada: Revert last change.
7859         * pa/t-pa: Revert last change.  Delete quadlib.c rule.
7860
7861 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
7862
7863         PR rtl-optimization/26087
7864         * rtlanal.c (canonicalize_condition): Do not cross basic block
7865         boundaries.
7866
7867 2006-02-04  Alexandre Oliva  <aoliva@redhat.com>
7868
7869         PR debug/24444
7870         * config/ia64/ia64.c: Include debug.h.
7871         (MAX_ARTIFICIAL_LABEL_BYTES): New.
7872         (ia64_label_after_insn, ia64_dwarf2out_def_steady_cfa): New.
7873         (IA64_CHANGE_CFA_IN_EPILOGUE): Define to 0.
7874         (process_epilogue, process_set, process_for_unwind_directive):
7875         Output unwind info only if requested.  Add CFA info if requested.
7876         Add new arguments as needed.  Adjust callers.
7877         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Override
7878         incorrect default.
7879         (DWARF2_FRAME_INFO): Define to zero.
7880         * config/ia64/unwind-ia64.c: Remove code that compensated for
7881         the CFA offset error fixed above.
7882         * config/ia64/t-ia64 (ia64.o): Depend on debug.h.
7883         * dwarf2out.c (DWARF2_FRAME_INFO): Define default.
7884         (dwarf2out_do_frame): Require nonzero DWARF2_UNWIND_INFO for
7885         -funwind-tables and -fexceptions to enable frame info.
7886         (dwarf2out_frame_init): Define initial CFA even if
7887         DWARF2_UNWIND_INFO is disabled.  Call initial_return_save if
7888         DWARF2_UNWIND_INFO is nonzero, not just defined.
7889         (dwarf2out_frame_finish): Output non-EH call frame info only
7890         if DWARF2_FRAME_INFO is nonzero.
7891         (convert_cfa_to_loc_list,
7892         compute_frame_pointer_to_cfa_displacement): Define even if
7893         unwind info is not supported.
7894         (gen_subprogram_die): Use the above unconditionally.  Remove
7895         legacy alternate code.
7896         * toplev.c (compile_file): Compile in call to
7897         dwarf2out_frame_finish if DWARF2_DEBUGGING_INFO is defined.
7898         (lang_dependent_init): Ditto for dwarf2out_frame_init.
7899
7900 2006-02-04  David Edelsohn  <edelsohn@gnu.org>
7901             Jakub Jelinek  <jakub@redhat.com>
7902
7903         * config/rs6000/rs6000.c (rs6000_mangle_fundamental_type): Mangle
7904         IBM extended float format long double as "g" on powerpc*-linux.
7905
7906 2006-02-03  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
7907
7908         PR target/25926
7909         * pa/x-ada (X_ADA_CFLAGS): Define _X_HPUX10 on HP-UX 10.
7910         * pa/t-pa (TARGET_LIBGCC2_CFLAGS): Define _T_HPUX10 on HP-UX 10.
7911
7912 2006-02-03  Jason Merrill  <jason@redhat.com>
7913
7914         PR c++/25979
7915         * gimplify.c (gimplify_modify_expr_rhs): Disable *& optimization for now.
7916
7917         PR middle-end/25977
7918         * gimplify.c (gimplify_modify_expr_rhs): It's not always safe to do RVO
7919         on the return slot if it's an NRV.
7920
7921 2006-02-03  Zdenek Dvorak <dvorakz@suse.cz>
7922
7923         * tree-ssa-loop-ivopts.c (enum use_type): Remove USE_OUTER.
7924         (dump_use, add_derived_ivs_candidates, determine_use_iv_cost,
7925         rewrite_use): Do not handle USE_OUTER.
7926         (find_interesting_uses_outer_or_nonlin, find_interesting_uses_outer,
7927         add_iv_outer_candidates, may_replace_final_value,
7928         determine_use_iv_cost_outer, rewrite_use_outer): Removed.
7929         (find_interesting_uses_op): Functionality of
7930         find_interesting_uses_outer_or_nonlin moved here.
7931         (find_interesting_uses_outside): Use find_interesting_uses_op.
7932
7933 2006-02-03  Alan Modra  <amodra@bigpond.net.au>
7934
7935         PR target/25960
7936         * config/rs6000/darwin-ldouble.c (__gcc_qadd): Preserve -0.0 result.
7937
7938 2006-02-03  Andreas Krebbel  <krebbel1@de.ibm.com>
7939             Ulrich Weigand  <uweigand@de.ibm.com>
7940
7941         PR target/25864
7942         * config/s390/2084.md ("x_fsimptf", "x_fmultf", "x_fdivtf",
7943         "x_floadtf", "x_ftrunctf", "x_ftruncdf"): New insn reservations.
7944         * config/s390/fixdfdi.h (__fixunstfdi, __fixtfdi): New functions.
7945         * config/s390/s390.c (struct processor_costs): Add mxbr, sqxbr, dxbr
7946         and dxr fields.
7947         (z900_cost, z990_cost, z9_109_cost): Values for the new fields added.
7948         (s390_rtx_costs): Use the new fields to calculate rtx costs.
7949         (s390_secondary_input_reload_class, s390_secondary_output_reload_class):
7950         Define secondary reloads for TFmode moves.
7951         (constant_modes): Add TFmode.
7952         (NR_C_MODES): Set to 8.
7953         * config/s390/s390.h (TARGET_CPU_CPP_BUILTINS): Add __LONG_DOUBLE_128__
7954         builtin define.
7955         (LONG_DOUBLE_TYPE_SIZE): Set to 128 or 64.
7956         (LIBGCC2_LONG_DOUBLE_TYPE_SIZE, WIDEST_HARDWARE_FP_SIZE): Define.
7957         (HARD_REGNO_NREGS, HARD_REGNO_MODE_OK, CLASS_MAX_NREGS,
7958         CANNOT_CHANGE_MODE_CLASS): Consider TFmode.
7959         * config/s390/s390.md ("type" attribute): Add fsimptf, floadtf, fmultf,
7960         fdivtf, fsqrttf, ftrunctf, ftruncdf as possible values.
7961         (FPR mode macro): Add TFmode.
7962         (DSF mode macro): New.
7963         (<de>, <dee> mode attributes): Removed.
7964         (<xde>, <xdee>, <RRe>, <RXe>, <Rf> mode attributes): New.
7965         ("*cmp<mode>_ccs_0", "*cmp<mode>_ccs_0_ibm", "*cmp<mode>_ccs",
7966         "*cmp<mode>_ccs_ibm", "fix_trunc<FPR:mode><GPR:mode>2_ieee",
7967         "floatdi<mode>2", "floatsi<mode>2_ieee", "*add<mode>3",
7968         "*add<mode>3_cc", "*add<mode>3_cconly", "*add<mode>3_ibm",
7969         "*sub<mode>3", "*sub<mode>3_cc", "*sub<mode>3_cconly",
7970         "*sub<mode>3_ibm", "*mul<mode>3_ibm", "*fmadd<mode>", "*fmsub<mode>",
7971         "*div<mode>3", "*div<mode>3_ibm", "*neg<mode>2_cc",
7972         "*neg<mode>2_cconly", "*neg<mode>2", "*neg<mode>2_ibm",
7973         "*abs<mode>2_cc", "*abs<mode>2_cconly", "*abs<mode>2",
7974         "*abs<mode>2_ibm", "*negabs<mode>2_cc", "*negabs<mode>2_cconly",
7975         "*negabs<mode>2", "sqrt<mode>2"):
7976         Changed <de> to <xde>. R constraint replaced by <Rf>.
7977         ("*mul<mode>3"): Changed <dee> to <xdee>. R constraint replaced by
7978         <Rf>.
7979         ("fix_trunc<FPR:mode>di2"): 'FPR:' removed.
7980         ("*fmadd<mode>", "*fmsub<mode>"): FPR mode replaced by DSF.
7981         ("*movtf_64", "*movtf_31"): New insn definitions followed by 5
7982         splitters.
7983         ("movtf", "reload_outtf", "reload_intf", "trunctfdf2", "trunctfsf2",
7984         "extenddftf2", "extendsftf2"): New expanders.
7985         ("*trunctfdf2_ieee", "*trunctfdf2_ibm", "*trunctfsf2_ieee",
7986         "*trunctfsf2_ibm", "*extenddftf2_ieee", "*extenddftf2_ibm",
7987         "*extendsftf2_ieee", "*extendsftf2_ibm"): New insn patterns.
7988         * config/s390/s390.opt (mlong-double-128, mlong-double-64):
7989         New options.
7990         * config/s390/t-crtstuff (TARGET_LIBGCC2_CFLAGS): Macro defined.
7991         * config/s390/libgcc-glibc.ver (__divtc3, __multc3, __powitf2,
7992         __fixtfti, __fixunstfti, __floattitf, __fixtfdi, __fixunstfdi,
7993         __floatditf): Add a GCC_4.1.0 symbol version tag.
7994         * doc/invoke.texi (-mlong-double-128, -mlong-double-64): Document
7995         the new options.
7996
7997 2006-02-02  Andrew Pinski  <pinskia@physics.uc.edu>
7998
7999         PR target/25377
8000         * config/i386/i386.c (ix86_function_ok_for_sibcall):
8001         Use targetm.binds_local_p instead of TREE_PUBLIC.
8002
8003 2006-02-02  Roger Sayle  <roger@eyesopen.com>
8004
8005         * tree.h (TYPE_STRING_FLAG): Document that this field may be used
8006         on INTEGER_TYPEs to indicate that it denotes a character type.
8007         * tree.c (build_common_tree_nodes): Set TYPE_STRING_FLAG on
8008         signed_char_type_node, unsigned_char_type_node and char_type_node.
8009         * dwarf2out.c (base_type_die): Treat CHAR_TYPE identically to
8010         INTEGER_TYPE.  Use TYPE_STRING_FLAG to decide whether to emit
8011         a DW_ATE_[un]signed_char instead of a DW_ATE_[un]signed.
8012
8013 2006-02-02  Zdenek Dvorak <dvorakz@suse.cz>
8014             Daniel Berlin  <dberlin@dberlin.org>
8015
8016         * tree-tailcall.c (arg_needs_copy_p): New function.
8017         (eliminate_tail_call): Use arg_needs_copy_p.
8018         (tree_optimize_tail_calls_1): Ditto. Also call add_virtual_phis.
8019         (add_virtual_phis): New function.
8020
8021 2006-02-02  Jakub Jelinek  <jakub@redhat.com>
8022
8023         * config/sparc/sparc.c (sparc_output_scratch_registers): Use
8024         #ignore instead of #scratch for %g7 .register directive.
8025
8026 2006-02-02  Andreas Tobler  <a.tobler@schweiz.ch>
8027
8028         * config/sparc/freebsd.h (ENDFILE_SPEC): Add space to separate
8029         object files.
8030
8031 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
8032
8033         * flow.c (calculate_global_regs_live): Assert that there aren't any
8034         EDGE_FAKE edges.
8035
8036 2006-02-02  Paolo Bonzini  <bonzini@gnu.org>
8037
8038         * tree-flow-inline.h (bsi_after_labels): Rewrite, return
8039         what its name says.
8040         * lambda-code.c (perfect_nestify): Use bsi_insert_before on
8041         bsi_after_labels iterator.
8042         * tree-if-conv.c (find_phi_replacement_condition,
8043         replace_phi_with_cond_modify_expr): Likewise.
8044         * tree-scalar-evolution.c (scev_const_prop): Likewise.
8045         * tree-ssa-loop-ivopts.c (compute_phi_arg_on_exit): Likewise.
8046
8047 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
8048
8049         * tree-inline.c (copy_tree_r): Also copy OMP_CLAUSE nodes.
8050
8051 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
8052
8053         PR 25990
8054         * tree-cfg.c (move_block_to_fn): Clear out the basic block
8055         array after growing it.
8056
8057 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
8058
8059         PR middle-end/24901
8060         * fold-const.c (fold_checksum_tree): Change type of buf.
8061
8062 2006-02-01  Bernd Schmidt  <bernd.schmidt@analog.com>
8063
8064         * reload.c (push_secondary_reload): Initialize t_icode.
8065
8066 2006-02-01  Jakub Jelinek  <jakub@redhat.com>
8067
8068         * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): For
8069         -msoft-float -mlong-double-128 only issue a warning, but don't
8070         swich to DFmode long double.
8071
8072 2006-02-01  Hans-Peter Nilsson  <hp@axis.com>
8073
8074         * cse.c (fold_rtx) <case RTX_COMM_COMPARE, RTX_COMPARE>: When arg1
8075         has a constant equivalent, iterate over equivalents for arg0,
8076         calling simplify_relational_operation and if there's a result
8077         cheaper than X, apply fold_rtx and return the result.
8078
8079 2006-02-01  Jan Hubicka  <jh@suse.cz>
8080
8081         * opts.c (no_unit_at_a_time_default): New global variable.
8082         (decode_options): Use it.
8083         * opts.h (no_unit_at_a_time_default): Declare.
8084
8085 2006-02-01  Paul Brook  <paul@codesourcery.com>
8086
8087         * function.c (assign_parm_setup_reg): Use function argument promotion
8088         rules.
8089         * expr.c (expand_expr_real_1): Use function argument promotion rules
8090         for PARM_DECLs.
8091
8092 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
8093
8094         * gcc.c (process_command): Change j to 'unsigned int'.
8095
8096 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
8097
8098         PR middle-end/26001
8099         * expr.c (expand_expr_real_1) <case ARRAY_REF>:
8100         Use the corrected index for the character
8101         out of the string constant.
8102
8103 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
8104
8105         * mode-switching.c (optimize_mode_switching): Fix size
8106         allocated for bb_info[n_entities].
8107
8108 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
8109
8110         * gcc.c (main): Correct type that is allocated for
8111         explicit_link_files.
8112
8113 2006-01-31  Jakub Jelinek  <jakub@redhat.com>
8114
8115         * config/s390/s390.c (init_alignment_context): Set
8116         ALIAS_SET_MEMORY_BARRIER on the MEM.
8117         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): Likewise.
8118
8119 2006-01-31  Uttam Pawar  <uttamp@us.ibm.com>
8120
8121         PR middle-end/25933
8122         * loop-unroll.c (unroll_loop_runtime_iterations): Free
8123         dom_bbs pointer.
8124         * tree-ssa-live.c (type_var_init): Allocate bitmap after
8125         call to tpa_init.
8126
8127 2006-01-31  Marcin Dalecki  <martin@dalecki.de>
8128
8129         * tree-vrp.c: Use XNEW/XCNEW allocation wrappers.
8130         * regrename.c: Ditto.
8131         * tree-ssa-loop-im.c: Ditto.
8132         * tree-dump.c: Ditto.
8133         * tree-complex.c: Ditto.
8134         * genrecog.c: Ditto.
8135         * tree-ssa-threadupdate.c: Ditto.
8136         * tracer.c: Ditto.
8137         * java/class.c: Ditto.
8138         * java/jcf-parse.c: Ditto.
8139         * java/resource.c: Ditto.
8140         * java/except.c: Ditto.
8141         * java/jvspec.c: Ditto.
8142         * java/jcf-write.c: Ditto.
8143         * java/jcf-path.c: Ditto.
8144         * java/gjavah.c: Ditto.
8145         * java/zextract.c: Ditto.
8146         * java/jcf-io.c: Ditto.
8147         * java/jcf.h: Ditto.
8148         * java/buffer.c: Ditto.
8149         * java/lang.c: Ditto.
8150         * java/parse-scan.y: Ditto.
8151         * java/lex.c: Ditto.
8152         * java/lex.h: Ditto.
8153         * cfgloopmanip.c: Ditto.
8154         * postreload-gcse.c: Ditto.
8155         * tree-ssa-loop-manip.c: Ditto.
8156         * postreload.c: Ditto.
8157         * tree-ssa-loop-ch.c: Ditto.
8158         * loop.c: Ditto.
8159         * ipa-cp.c: Ditto.
8160         * cppspec.c: Ditto.
8161         * diagnostic.c: Ditto.
8162         * final.c: Ditto.
8163         * genoutput.c: Ditto.
8164         * gcc.c: Ditto.
8165         * cfghooks.c: Ditto.
8166         * cfgloopanal.c: Ditto.
8167         * objc/objc-act.c: Ditto.
8168         * gcov.c: Ditto.
8169         * genextract.c: Ditto.
8170         * genautomata.c: Ditto.
8171         * pretty-print.c: Ditto.
8172         * genemit.c: Ditto.
8173         * cgraphunit.c: Ditto.
8174         * flow.c: Ditto.
8175         * df-scan.c: Ditto.
8176         * haifa-sched.c: Ditto.
8177         * dominance.c: Ditto.
8178         * dbxout.c: Ditto.
8179         * tree-ssa-loop-ivopts.c: Ditto.
8180         * df-core.c: Ditto.
8181         * mode-switching.c: Ditto.
8182         * modulo-sched.c: Ditto.
8183         * graph.c: Ditto.
8184         * ipa-pure-const.c: Ditto.
8185         * cse.c: Ditto.
8186         * fix-header.c: Ditto.
8187         * web.c: Ditto.
8188         * tree-stdarg.c: Ditto.
8189         * ipa-utils.c: Ditto.
8190         * loop-init.c: Ditto.
8191         * ipa-inline.c: Ditto.
8192         * cfganal.c: Ditto.
8193         * global.c: Ditto.
8194         * alloc-pool.c: Ditto.
8195         * dwarf2out.c: Ditto.
8196         * opts.c: Ditto.
8197         * genattrtab.c: Ditto.
8198         * tree-ssa-loop-ivcanon.c: Ditto.
8199         * predict.c: Ditto.
8200         * timevar.c: Ditto.
8201         * lcm.c: Ditto.
8202         * fortran/gfortranspec.c: Ditto.
8203         * regmove.c: Ditto.
8204         * local-alloc.c: Ditto.
8205         * langhooks.c: Ditto.
8206         * function.c: Ditto.
8207         * tree-vectorizer.c: Ditto.
8208         * gcse.c: Ditto.
8209         * ipa-type-escape.c: Ditto.
8210         * alias.c: Ditto.
8211         * tree-if-conv.c: Ditto.
8212         * profile.c: Ditto.
8213         * ipa.c: Ditto.
8214         * tree-data-ref.c: Ditto.
8215         * loop-unroll.c: Ditto.
8216         * treelang/treetree.c: Ditto.
8217         * calls.c: Ditto.
8218         * bt-load.c: Ditto.
8219         * ggc-common.c: Ditto.
8220         * except.c: Ditto.
8221         * coverage.c: Ditto.
8222         * cselib.c: Ditto.
8223         * tree-cfgcleanup.c: Ditto.
8224         * tree-ssa-pre.c: Ditto.
8225         * cfgcleanup.c: Ditto.
8226         * loop-invariant.c: Ditto.
8227         * loop-iv.c: Ditto.
8228         * ipa-prop.c: Ditto.
8229         * print-tree.c: Ditto.
8230         * conflict.c: Ditto.
8231         * ggc-page.c: Ditto.
8232         * sched-deps.c: Ditto.
8233         * regclass.c: Ditto.
8234         * tree-object-size.c: Ditto.
8235         * combine.c: Ditto.
8236         * bb-reorder.c: Ditto.
8237         * resource.c: Ditto.
8238         * var-tracking.c: Ditto.
8239         * cfgloop.c: Ditto.
8240         * df-problems.c: Ditto.
8241         * reg-stack.c: Ditto.
8242         * tlink.c: Ditto.
8243         * gccspec.c: Ditto.
8244         * sched-rgn.c: Ditto.
8245         * tree-ssa-structalias.c: Ditto.
8246         * tree-ssa-reassoc.c: Ditto.
8247         * config/darwin-c.c: Ditto.
8248         * config/darwin.c: Ditto.
8249         * config/arm/arm.c: Ditto.
8250         * cfgrtl.c: Ditto.
8251         * collect2.c: Ditto.
8252         * reload1.c: Ditto.
8253
8254 2006-01-31  Nicolas Pitre  <nico@cam.org>
8255
8256         * arm.md (smaxsi3): Make aware of smax_m1.
8257         (smax_m1): New.
8258
8259 2006-01-31  Nathan Sidwell  <nathan@codesourcery.com>
8260
8261         * config/m68k/lb1sf68.asm: Use moveq to load small constants.
8262
8263 2006-01-31  Richard Guenther  <rguenther@suse.de>
8264
8265         * doc/invoke.texi (-msselibm): Document.
8266         * target.h (expand_library_builtin): New target hook.
8267         * builtins.c (expand_builtin): Use expand_library_builtin.
8268         (default_expand_library_builtin): New function.
8269         * gcc.c (LINK_GCC_MATH_SPEC): Define.
8270         (LINK_COMMAND_SPEC): Handle %(link_gcc_math).
8271         (link_gcc_math_spec): Declare.
8272         (static_specs): Add link_gcc_math_spec.
8273         * expr.h (default_expand_library_builtin): Declare.
8274         * target-def.h (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
8275         (TARGET_INITIALIZER): Add TARGET_EXPAND_LIBRARY_BUILTIN.
8276         * config/i386/i386.h: Provide LINK_GCC_MATH_SPEC.
8277         * config/i386/i386.opt (msselibm): New target option.
8278         * config/i386/i386.c (ix86_builtin_function_variants): New array.
8279         (ix86_init_sse_abi_builtins): New function.
8280         (ix86_expand_library_builtin): Likewise.
8281         (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
8282         (override_options): Handle error conditions wrt -msselibm.
8283         (ix86_builtins): Add function codes for SSE2 ABI builtins.
8284         (ix86_init_builtins): Call ix86_init_sse_abi_builtins.
8285         * doc/extend.texi (__builtin_sse2_*): Document new target specific
8286         builtins.
8287
8288 2006-01-31  Richard Guenther  <rguenther@suse.de>
8289         Paolo Bonzini  <bonzini@gnu.org>
8290
8291         * doc/install.texi (--disable-libgcc-math): Document.
8292
8293 2006-01-30  Marcin Dalecki  <martin@dalecki.de>
8294
8295         * expr.h (expand_normal): new inline function.
8296         * builtins.c: use it, use EXPAND_NORMAL explicitely.
8297         * dojump.c: use it.
8298         * dwarf2out.c: use it.
8299         * expr.c: use it.
8300         * calls.c: use it.
8301         * expmed.c: use it.
8302         * except.c: use it.
8303         * config/sparc/sparc.c: use it.
8304         * config/i386/i386.c: use it.
8305         * config/rs6000/rs6000.c: use it.
8306         * config/arm/arm.c: use it.
8307         * config/mips/mips.c: use it.
8308         * stmt.c: use it, use EXPAND_NORMAL explicitely.
8309
8310 2006-01-30  Roger Sayle  <roger@eyesopen.com>
8311
8312         * config/i386/cygwin.h (GCC_DRIVER_HOST_INITIALIZATION): Cast
8313         argv to the appropriate type.
8314
8315 2006-01-30  Zdenek Dvorak <dvorakz@suse.cz>
8316
8317         * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Remove
8318         unreachable code.
8319
8320 2006-01-30  Ulrich Weigand  <uweigand@de.ibm.com>
8321
8322         PR target/26018
8323         * config/s390/s390.c (struct machine_function): New flag
8324         decomposed_literal_pool_addresses_ok_p.
8325         (s390_reorg): Set it before final stage of literal pool transforms.
8326         (s390_decompose_address): Only accept displacements of the form
8327         (minus (label_ref ...) (label_ref ...)) if that flag is set.
8328
8329 2006-01-30  Carlos O'Donell  <carlos@codesourcery.com>
8330
8331         * optabs.c (prepare_cmp_insn): If unbaised and unsigned then bias
8332         the comparison routine return.
8333
8334 2006-01-30  Michael Matz  <matz@suse.de>
8335
8336         * global.c (find_reg): Only evict for global regs.
8337         Take n_refs into account and dump more info.
8338
8339 2006-01-30  J"orn Rennecke <joern.rennecke@st.com>
8340
8341         PR target/14798:
8342         * sh.c (pragma_interrupt, trap_exit, sp_switch): Remove variable.
8343         (pragma_trap, pragma_nosave_low_regs): Likewise.
8344         (current_function_anonymous_args): Likewise.
8345         (sh_deferred_function_attributes): New variable.
8346         (sh_deferred_function_attributes_tail): Likewise.
8347         (print_operand): For '@', look up trap_exit attribute.
8348         (calc_live_regs): Look up trapa_handler attribute.  For trapa
8349         handlers, save/restore fpscr, but don't do any other
8350         interrupt-specific saves.
8351         Don't save r0..r7 if the nosave_low_regs attribute is in effect.
8352         Fix check for partially saved registers to check for SHmedia.
8353         (sh_expand_prologue, sh_expand_epilogue): Look up sp_switch attribute.
8354         (sh_output_function_epilogue): Don't clear any of the removed
8355         variables.
8356         (sh_insert_attributes): Don't check pragma_interrupt.
8357         Insert deferred attributes.  Check that interrupt attribute is
8358         present for other attributes that require its presence.
8359         (sh_attribute_table): Add new attributes trapa_handler and
8360         nosave_low_regs.
8361         (sh_handle_sp_switch_attribute, sh_handle_trap_exit_attribute):
8362         Don't check for pragma_interrupt.  Don't store argument.
8363         * sh.h (pragma_interrupt, sp_switch): Don't declare.
8364         (sh_deferred_function_attributes): Declare.
8365         (sh_deferred_function_attributes_tail): Likewise.
8366         * sh.md (sp_switch_1): Add operand.  Change generator caller.
8367         (sh_pr_interrupt, sh_pr_trapa, sh_pr_nosave_low_regs): Remove.
8368         (*return_i): Don't use when trap_exit attribute is in effect.
8369         (*return_trapa): New insn pattern.
8370         * sh-c.c: New file.
8371         * config.gcc (sh[123456ble]*-* | sh-*-*): New trailer stanza,
8372         setting c_target_objs and cxx_target_objs.
8373         * t-sh: Add rule for sh-c.o.
8374
8375 2006-01-30  Richard Guenther  <rguenther@suse.de>
8376
8377         PR c++/23372
8378         * gimplify.c (gimplify_target_expr): Handle easy cases
8379         without creating a temporary.
8380
8381 2006-01-30  Nathan Sidwell  <nathan@codesourcery.com>
8382
8383         * vec.h (safe_grow): Remove duplicated line.
8384
8385 2006-01-29  Diego Novillo  <dnovillo@redhat.com>
8386
8387         PR 25874
8388         * omp-low.c (execute_expand_omp): Move CFG cleanup code ...
8389         (expand_omp): ... here.
8390         (expand_omp_parallel): Only remove barriers for combined
8391         parallel+workshare constructs.
8392
8393 2006-01-29  Eric Botcazou  <ebotcazou@adacore.com>
8394
8395         Revert
8396
8397         2005-11-09  Eric Botcazou  <ebotcazou@adacore.com>
8398         * tree.c (build_qualified_type): Chain the new type to the original
8399         type's TYPE_NEXT_PTR_TO or TYPE_NEXT_REF_TO linked lists if it is
8400         a POINTER_TYPE or a REFERENCE_TYPE respectively.
8401         (build_pointer_type_for_mode): Only return unqualified types.
8402         (build_reference_type_for_mode): Likewise.
8403
8404 2006-01-29  Gabriel Dos Reis  <gdr@integgrable-solutions.net>
8405
8406         * configure.ac (cxx_compat_warn): Set if -Wc++-compat is supported.
8407         * Makefile.in (CXX_COMPAT_WARN): Define.
8408         * configure: Regenerate.
8409
8410 2006-01-29  Dorit Nuzman  <dorit@il.ibm.com>
8411
8412         PR tree-opt/25911
8413         * tree-vect-patterns.c (vect_recog_dot_prod_pattern): Change assert
8414         to an if check.
8415
8416 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
8417
8418         * toplev.c: Fix thinko.
8419
8420 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
8421             Marcin Dalecki  <martin@dalecki.de>
8422
8423         * toplev.c (floor_log2, exact_log2): Don't define if __cplusplus.
8424         (push_srcloc): Use XNEW.
8425         (init_asm_output, default_get_pch_validity): Use XNEWVEC.
8426
8427 2006-01-29  Kenneth Zadeck <zadeck@naturalbridge.com>
8428
8429         * df-core.c (df_set_blocks): Deleted all variable.
8430
8431 2006-01-28  Ian Lance Taylor  <ian@airs.com>
8432
8433         * cgraphunit.c (cgraph_assemble_pending_functions): Call
8434         cgraph_output_pending_asms.
8435
8436 2006-01-28  Zack Weinberg  <zackw@panix.com>
8437
8438         * c.opt: Add -W(no-)overlength-strings.
8439         * doc/invoke.texi: Document it.
8440         * c-opts.c (c_common_handle_option): -pedantic implies
8441         -Woverlength-strings, if not explicitly disabled already.
8442         (c_common_post_options): -Woverlength-strings defaults to off, and
8443         is always off for C++.
8444         * c-common.c (fix_string_type): Issue warning about strings longer
8445         than is portable only if warn_overlength_strings.  Rearrange code
8446         a little for clarity.
8447         * configure.in: Check for -Wno-overlength-strings as well before
8448         enabling -pedantic in stage 1.
8449         * Makefile.in (STRICT2_WARN): Add -Wno-overlength-strings.
8450         (gcc.o-warn, insn-automata.o-warn, build/gencondmd.o-warn): Delete.
8451
8452         * genconditions.c (write_header, write_one_condition)
8453         (write_conditions, write_writer): Consolidate very long strings
8454         that were broken up to fit in C89 portable limit.  Don't use
8455         printf when fputs will do.
8456
8457 2006-01-28  Adam Nemet  <anemet@caviumnetworks.com>
8458
8459         * combine.c (simplify_comparison <AND>): Check
8460         TRULY_NOOP_TRUNCATION before start using a subreg.
8461
8462         * config/mips/mips.md (*branch_zero<mode>,
8463         *branch_zero<mode>_inverted, *branch_equality<mode>,
8464         *branch_equality<mode>_inverted, *branch_equality<mode>_mips16):
8465         Remove mode check from comparisons.
8466
8467 2006-01-28  Kenneth Zadeck <zadeck@naturalbridge.com>
8468
8469         * config/mips/mips-protos.h (mips_set_live_on_entry): Deleted.
8470
8471 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
8472
8473         * expmed.c (const_mult_add_overflow_p): Remove.
8474         * expr.h: Remove the prototype for const_mult_add_overflow_p.
8475
8476         * recog.c (validate_replace_rtx_subexp): Remove.
8477         * recog.h: Remove the prototype for
8478         validate_replace_rtx_subexp.
8479
8480         * integrate.h: Remove the prototype for
8481         copy_decl_for_inlining.
8482         * rtl.h: Remove the prototype for mark_constant_function.
8483         * tree-vectorizer.h: Remove the prototype for
8484         vect_strip_conversion.
8485
8486         * modulo-sched.c (create_partial_schedule,
8487         free_partial_schedule, reset_partial_schedule): Make them
8488         static.
8489
8490         * hooks.c (hook_bool_rtx_int_false): Remove.
8491         * hooks.h: Remove the prototype for hook_bool_rtx_int_false.
8492
8493 2006-01-28  David Edelsohn  <edelsohn@gnu.org>
8494
8495         * config/rs6000/aix43.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
8496         and -mlong-double-128 are incompatible.
8497         * config/rs6000/aix52.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
8498         * config/rs6000/t-aix43 (LIB2FUNCS_EXTRA): Add ppc64-fp.c.
8499         (TARGET_LIBGCC2_CFLAGS): Define.
8500         * config/rs6000/t-aix52 (LIB2FUNCS_EXTRA): Same.
8501         (TARGET_LIBGCC2_CFLAGS): Same.
8502         * config/rs6000/ppc64-fp.c: Compile for 64-bit AIX.
8503
8504 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
8505
8506         PR c/19606.
8507         * c-typeck.c (build_binary_op): Perform implicit casts of
8508         operands before shortening them.
8509
8510         * cfgloopmanip.c (split_loop_bb): Remove.
8511         * cfgloop.h: Remove the prototype for split_loop_bb.
8512
8513         * cfgloop.c (flow_loop_outside_edge_p): Remove.
8514         * cfgloop.h: Remove the prototype for
8515         flow_loop_outside_edge_p.
8516
8517         * emit-rtl.c (init_virtual_regs): Make it static.
8518         * function.h: Remove the prototype for init_virtual_regs.
8519
8520         * recog.c (peephole2_optimize): Make it static.
8521         * recog.h: Remove the prototype for peephole2_optimize.
8522
8523 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
8524
8525         * df-scan.c (df_record_entry_block_defs): Check if
8526         INCOMING_RETURN_ADDR_RTX is defined.
8527
8528 2006-01-27  Daniel Berlin  <dberlin@dberlin.org>
8529             Kenneth Zadeck <zadeck@naturalbridge.com>
8530
8531         PR rtl-optimization/24762
8532         * doc/tm.texi: Added TARGET_EXTRA_LIVE_ON_ENTRY.
8533         * targhooks.c (hook_void_bitmap): New hook prototype.
8534         * targhoohs.h (hook_void_bitmap): Ditto.
8535         * bitmap.h (bitmap_head_def): Moved to coretypes.h.
8536         * coretypes.h (bitmap_head_def): Moved from bitmap.h.
8537         * target.h (live_on_entry): New function pointer.
8538         * df-scan.c (df_all_hard_regs): Removed.
8539         (df_scan_dump, df_hard_reg_init): Removed df_all_hard_regs.
8540         (df_scan_free_internal): Added df->entry_block_defs.
8541         (df_scan_alloc): Ditto.
8542         (df_scan_dump): Ditto.
8543         (df_uses_record): Plumbed flag field properly thru calls.
8544         Record EH_RETURN_DATA_REGNO in eh blocks unconditionally.
8545         This part fixes PR24762.
8546         (df_bb_refs_record): Added code to make the frame and arg
8547         pointers live in EH blocks.
8548         (df_refs_record): Added call to df_record_entry_block_defs.
8549         (df_record_entry_block_defs): New function.
8550         * df-core.c: Added comments to describe new artifical defs.
8551         * df.h (DF_REF_DIES_AFTER_THIS_USE): New flag in enum df_ref_flags.
8552         (entry_block_defs): New field in struct df.
8553         (df_all_hard_regs): Deleted.
8554         * target-def.h: Added TARGET_EXTRA_LIVE_ON_ENTRY.
8555         * df-problems.c (df_ru_bb_local_compute_process_def):
8556         Added code to handle artifical defs in the entry to a function.
8557         (df_ru_bb_local_compute): Ditto.
8558         (df_rd_bb_local_compute_process_def): Ditto.
8559         (df_rd_bb_local_compute): Ditto.
8560         (df_lr_bb_local_compute): Ditto.
8561         (df_ur_bb_local_compute): Ditto.
8562         (df_urec_bb_local_compute): Ditto.
8563         (df_chain_create_bb): Ditto.
8564         (df_ur_local_finalize): Removed entry.
8565         (df_urec_init): Ditto.
8566         (df_urec_local_finalize): Ditto.
8567         (df_ri_bb_compute): Added detection of last use of pseudos.
8568         * Makefile.in (df-scan.o): Updated dependencies.
8569         * config/mips/mips-protos.h (mips_set_live_on_entry): Added.
8570         * config/mips/mips.c (mips_set_live_on_entry): Added.
8571         * config/mips/mips.c (TARGET_EXTRA_LIVE_ON_ENTRY): Added value
8572         for target hook.
8573         * dce.c (marked_insn_p): Added code to handle artifical defs.
8574
8575 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
8576
8577         * config/i386/emmintrin.h (_mm_cvtsd_f64): Add missing Intel
8578         intrinsic.
8579         (_mm_cvtsi128_si64): Likewise.
8580         (_mm_cvtsd_si64): Likewise.
8581         (_mm_cvttsd_si64): Likewise.
8582         (_mm_cvtsi64_sd): Likewise.
8583         (_mm_cvtsi64_si128): Likewise.
8584         * config/i386/mmintrin.h (_m_from_int64): Likewise.
8585         (_mm_cvtsi64_m64): Likewise.
8586         (_m_to_int64): Likewise.
8587         (_mm_cvtm64_si64): Likewise.
8588         * config/i386/xmmintrin.h (_mm_cvtss_si64): Likewise.
8589         (_mm_cvttss_si64): Likewise.
8590         (_mm_cvtsi64_ss): Likewise.
8591         (_mm_cvtss_f32): Likewise.
8592
8593 2006-01-27  Carlos O'Donell  <carlos@codesourcery.com>
8594
8595         * c-pragma.c (init_pragma) : Call c_register_pragma_with_expansion
8596         for pragma redefine_extname.
8597
8598 2006-01-27  Jakub Jelinek  <jakub@redhat.com>
8599
8600         PR target/25864
8601         * libgcc-std.ver: Add GCC_4.1.0 symbol version.
8602         * config/rs6000/t-linux64 (TARGET_LIBGCC2_CFLAGS): Only append
8603         -mno-minimal-toc to previous content.
8604         (bispecs): Remove goal.
8605         * config/rs6000/ppc64-fp.c: Define TMODES before including fp-bit.h.
8606         * config/rs6000/darwin-ldouble.c: Don't provide _xlq*@GCC_3.4
8607         compatibility aliases on powerpc-*-*gnu*.
8608         * config/rs6000/libgcc-ppc-glibc.ver: New file.
8609         * config/rs6000/t-ppccomm (SHLIB_MAPFILES): Append
8610         libgcc-ppc-glibc.ver on powerpc*-*-*gnu*.
8611         (TARGET_LIBGCC2_CFLAGS): Append -specs=ldblspecs.
8612         (ldblspecs): New goal.
8613         * config/rs6000/t-linux64 (SHLIB_MAPFILES): Removed.
8614         * mklibgcc.in: If $TPBIT is empty, don't compile _sf_to_tf and
8615         _df_to_tf.
8616         * config/fp-bit.h (TMODES): Don't define if none of TFLOAT,
8617         L_sf_to_tf or L_df_to_tf is defined.
8618
8619 2006-01-27  David Edelsohn  <edelsohn@gnu.org>
8620             Alan Modra  <amodra@bigpond.net.au>
8621
8622         PR target/25864
8623         * config/rs6000/linux.h (POWERPC_LINUX): Define.
8624         * config/rs6000/linux64.h (POWERPC_LINUX): Define.
8625         * config/rs6000/darwin-ldouble.c: Build on 32-bit PowerPC.
8626         * config/rs6000/darwin.h (TARGET_IEEEQUAD): Define to zero.
8627         * config/rs6000/aix.h (TARGET_IEEEQUAD): Define to zero.
8628         * config/rs6000/rs6000.c (rs6000_ieeequad): New variable.
8629         (rs6000_override_options): Initialize rs6000_ieeequad.
8630         Initialize TFmode format to ibm_extended_format if not
8631         TARGET_IEEEQUAD.
8632         (rs6000_handle_option): Accept -mabi= ibmlongdouble and
8633         ieeelongdouble.
8634         (rs6000_emit_move): Move !TARGET_IEEEQUAD as two parts.
8635         (rs6000_return_in_memory): Only return IEEEQUAD in memory.
8636         (function_arg_advance): IBM long double passed in two FPRs, not
8637         split.
8638         (function_arg): IBM long double passed in FPRs.
8639         (rs6000_pass_by_reference): Only IEEEQUAD passed by reference.
8640         (rs6000_gimplify_va_arg): IBM long double passed in two FPRs.
8641         Only multireg GPR aligned.
8642         (rs6000_init_libfuncs): Enable IBM long double functions if not
8643         IEEEQUAD.
8644         (rs6000_generate_compare): Use IBM long double compare if not
8645         TARGET_IEEEQUAD.
8646         * config/rs6000/rs6000.h (rs6000_ieeequad): Declare.
8647         (TARGET_IEEEQUAD): Define.
8648         (CANNOT_CHANGE_MODE_CLASS): Any mode larger than doubleword if
8649         not TARGET_IEEEQUAD.
8650         * config/rs6000/rs6000.md: Enable TFmode patterns if
8651         !TARGET_IEEEQUAD.
8652         * config/rs6000/t-ppccomm (LIB2FUNCS_EXTRA): Add darwin-ldouble.c.
8653         * config/rs6000/svr4.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
8654         and -mlong-double-128 are incompatible.
8655         * doc/invoke.texi (-mabi): Collect options together.  Add
8656         ibmlongdouble and ieeelongdouble.
8657
8658 2006-01-27  Richard Sandiford  <richard@codesourcery.com>
8659
8660         * doc/rtl.texi (SYMBOL_REF_DATA): Adjust documentation for new
8661         opaque type.
8662         * optabs.c (init_one_libfunc): Use SET_SYMBOL_REF_DECL.
8663         * varasm.c (make_decl_rtl, build_constant_desc): Likewise.
8664         (force_const_mem): Use SET_SYMBOL_REF_CONSTANT.
8665         * rtl.h (rtunion_def): Remove rt_ptr.
8666         (X0PTR): Delete.
8667         (SYMBOL_REF_DATA): Use X0ANY instead of X0PTR.
8668         (SET_SYMBOL_REF_DECL, SET_SYMBOL_REF_CONSTANT): New macros.
8669         * config/i386/winnt.c (i386_pe_mark_dllexport)
8670         (i386_pe_mark_dllimport): Use SET_SYMBOL_REF_DECL.
8671
8672 2006-01-27 Gabor Loki <loki@gcc.gnu.org>
8673
8674         * cfgcleanup.c (try_crossjump_to_edge): Fix comment typo.
8675
8676 2006-01-26 Alexandre Oliva  <aoliva@redhat.com>
8677
8678         PR other/24829
8679         PR target/24831
8680         * gthr-dce.h: Do not gthrw-ify pthread_once_init,
8681         pthread_key_delete.  From John David Anglin.  gthrw-ify
8682         pthread_getunique_np only if it it's not a macro.  Delete
8683         UNUSED macro.
8684         (__gthread_objc_condition_allocate, __gthread_objc_condition_deallocate,
8685         __gthread_objc_condition_wait, __gthread_objc_condition_broadcast,
8686         __gthread_objc_condition_signal, __gthread_key_delete): Add
8687         "__attribute__ ((__unused__))" to unused arguments.
8688         (__gthread_recursive_mutex_init_function): Add missing return.
8689         * gthr-dce.h, gthr-tpf.h, gthr-solaris.h, gthr-posix.h,
8690         gthr-posix95.h: Use macro-based approach for name redirection
8691         on targets missing weakref.
8692
8693 2006-01-26  Zack Weinberg  <zackw@panix.com>
8694
8695         * genconditions.c (write_header): In generated code, #ifdef out
8696         all includes and fake declarations, except includes of bconfig.h
8697         and system.h, unless GCC_VERSION >= 3001.  Do not include
8698         gensupport.h in any case.
8699         (write_conditions): Generate a definition of struct c_test.  Add
8700         a comment to the generated #endif.
8701         (write_one_condition): Escape backslashes in string too.
8702         (write_writer): Generated code must escape backslashes and quote
8703         marks (but not newlines) in the strings it writes.
8704         * Makefile.in (build/gencondmd.o): Update dependencies.
8705
8706 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
8707
8708         PR target/25961
8709         * Makefile.in (insn-automata.o): Add header file dependencies.
8710         * genautomata.c: Add includes.
8711
8712 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
8713
8714         PR target/25961
8715         * Makefile.in (insn-automata.o): Add -Wno-error flag.
8716
8717 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
8718
8719         * configure.ac: Expect target tools paths to be passed from the toplevel
8720         and wrap the detection into AS_SET_VAR_IF.  Extract side-effects out of
8721         AS_SET_VAR_IF.
8722         * acinclude.m4 (gcc_AC_TOOL_DIRS, gcc_AC_CHECK_TOOL): Remove.
8723
8724 2006-01-26  Alexandre Oliva  <aoliva@redhat.com>
8725
8726         PR c/25892
8727         * c.opt (Wpointer-sign): Init to -1.
8728         * c-opts.c (c_common_handle_option): Set to 1 on OPT_Wall and
8729         OPT_pedantic, to 0 otherwise.
8730         * doc/invoke.texi: Update.
8731
8732 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
8733
8734         * config/i386/i386.md (extendsfdf2, extendsfxf2, extenddfxf2): Emit
8735         constants provided by 80387 instructions in the destination mode.
8736
8737 2006-01-26  Richard Guenther  <rguenther@suse.de>
8738             Andrew Pinski  <pinskia@physics.uc.edu>
8739
8740         PR tree-opt/21470
8741         partial PR tree-opt/17064
8742         * tree-ssa-structalias.c (intra_create_variable_infos):
8743         Create heap variables for incoming parameters if
8744         flag_argument_noalias > 1.
8745         (find_what_p_points_to): Look through default defs of
8746         parameter decls.
8747
8748 2006-01-26  Jeff Law  <law@redhat.com>
8749
8750         PR ada/25900
8751         * tree-vrp.c (extract_range_from_assert): When merging a VR_RANGE
8752         with a VR_ANTI_RANGE and the VR_ANTI_RANGE is completely contained
8753         within the VR_RANGE, use the VR_RANGE as the result, not the
8754         VR_ANTI_RANGE.
8755         (adjust_range_with_scev): Reject ranges from SCEV which are out of
8756         bounds for the type.
8757
8758 2006-01-26  Daniel Berlin  <dberlin@dberlin.org>
8759
8760         * tree-ssa-alias.c (maybe_create_global_var): Change
8761         subvar walking to an assertion that we don't have subvar'd variables.
8762
8763 2006-01-26  Andrew Pinski  <pinskia@physics.uc.edu>
8764
8765         PR C/25861
8766         * c-common.c (c_common_truthvalue_conversion) <case ADDR_EXPR>:
8767         Use a new variable, inner.  PARM_DECLs are always non-weak.
8768
8769 2006-01-26  Shantonu Sen  <ssen@opendarwin.org>
8770
8771         * tree.h (OMP_CLAUSE_SUBCODE_CHECK): Add definition for
8772         --disable-checking.
8773
8774 2006-01-26  Adam Nemet  <anemet@caviumnetworks.com>
8775
8776         * config/mips/mips.md (*clear_upper32): New combiner pattern.
8777
8778 2006-01-26  Richard Earnshaw  <richard.earnshaw@arm.com>
8779
8780         * arm.md (smaxsi3, sminsi3): Convert to define_expand.
8781         (smax_insn, smin_insn, smax_0, smin_0): New.
8782
8783 2006-01-26  Hans-Peter Nilsson  <hp@axis.com>
8784
8785         PR target/25947
8786         * config/cris/cris.c (cris_order_for_addsi3): New function.
8787         * config/cris/cris-protos.h: Prototype it.
8788         * config/cris/cris.md (split for "move.S1 [rx=rx+i],ry")
8789         (split for "move.S1 ry,[rx=rx+i]", split for "clear.[bwd] [rx=rx+i]")
8790         (split for "mov(s|u).S1 [rx=rx+i],ry", split for "op.S1 [rx=rx+i],ry")
8791         (split for "op.S1 [rx=rx+i],ry (swapped)")
8792         (split for "op(s|u).S1 [rx=rx+i],ry")
8793         (split for "op(s|u).S1 [rx=rx+i],ry (swapped, plus or bound)"):
8794         Apply cris_order_for_addsi3 when generating addsi3 insns.
8795
8796 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
8797
8798         * tree.h (TREE_RANGE_CHECK): Fix range predicate.
8799         (TREE_BLOCK): Add call to EXPR_CHECK.
8800
8801 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
8802
8803         PR 25886
8804         * tree-dump.c (dequeue_and_dump): Handle OMP_CLAUSE.
8805         * tree-pretty-print.c (dump_omp_clause): Extract from ...
8806         (dump_omp_clauses): ... here.
8807         (dump_generic_node): Handle OMP_CLAUSE.
8808         * tree.c (omp_clause_num_ops): New.
8809         (omp_clause_code_name): New.
8810         (tree_code_size): Handle OMP_CLAUSE.
8811         (tree_size): Likewise.
8812         (make_node): Document handling of OMP_CLAUSE.
8813         (tree_node_structure): Handle OMP_CLAUSE.
8814         (omp_clause_check_failed): New.
8815         (omp_clause_range_check_failed): New.
8816         (omp_clause_operand_check_failed): New.
8817         (build_omp_clause): New.
8818         (walk_tree): Adjust handling of OMP_CLAUSE_* nodes.
8819         * tree.h (enum omp_clause_code): Declare.
8820         (OMP_CLAUSE_SUBCODE_CHECK): Define.
8821         (OMP_CLAUSE_RANGE_CHECK): Define.
8822         (OMP_CLAUSE_ELT_CHECK): Define.
8823         (omp_clause_check_failed): Declare.
8824         (omp_clause_operand_check_failed): Declare.
8825         (omp_clause_range_check_failed): Declare.
8826         (OMP_CLAUSE_CHAIN): Do not use TREE_RANGE_CHECK.
8827         (OMP_CLAUSE_OPERAND): Use OMP_CLAUSE_RANGE_CHECK.
8828         (OMP_CLAUSE_PRIVATE_DEBUG): Use OMP_CLAUSE_SUBCODE_CHECK.
8829         (OMP_CLAUSE_LASTPRIVATE): Likewise.
8830         (OMP_CLAUSE_IF_EXPR): Likewise.
8831         (OMP_CLAUSE_NUM_THREADS_EXPR): Likewise.
8832         (OMP_CLAUSE_SCHEDULE_CHUNK_EXPR): Likewise.
8833         (OMP_CLAUSE_REDUCTION_CODE): Likewise.
8834         (OMP_CLAUSE_REDUCTION_INIT): Likewise.
8835         (OMP_CLAUSE_REDUCTION_MERGE): Likewise.
8836         (OMP_CLAUSE_REDUCTION_PLACEHOLDER): Likewise.
8837         Use tree_node.omp_clause.subcode instead of TREE_COMPLEXITY.
8838         (OMP_CLAUSE_SCHEDULE_KIND): Likewise.
8839         (OMP_CLAUSE_DEFAULT_KIND): Likewise.
8840         (OMP_CLAUSE_CODE): Define.
8841         (OMP_CLAUSE_SET_CODE): Define.
8842         (OMP_CLAUSE_CODE): Define.
8843         (OMP_CLAUSE_OPERAND): Define.
8844         (struct tree_omp_clause): Declare.
8845         (union tree_node): Add field 'omp_clause'.
8846         * treestruct.def (TS_OMP_CLAUSE): Define.
8847         * tree.def (OMP_CLAUSE_PRIVATE, OMP_CLAUSE_SHARED
8848         OMP_CLAUSE_FIRSTPRIVATE, OMP_CLAUSE_LASTPRIVATE,
8849         OMP_CLAUSE_REDUCTION, OMP_CLAUSE_COPYIN,
8850         OMP_CLAUSE_COPYPRIVATE, OMP_CLAUSE_IF,
8851         OMP_CLAUSE_NUM_THREADS, OMP_CLAUSE_SCHEDULE,
8852         OMP_CLAUSE_NOWAIT, OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Remove.
8853         (OMP_CLAUSE): Define.
8854         * print-tree.c (print_node): Handle OMP_CLAUSE.
8855         * omp-low.c: Adapt all uses of OMP_CLAUSE_* nodes.
8856         * c-typeck.c: Likewise.
8857         * gimplify.c: Likewise.
8858         * c-omp.c: Likewise.
8859         * tree-nested.c: Likewise.
8860         * tree-inline.c: Likewise.
8861         * c-parser.c: Likewise.
8862         * gimple-low.c (lower_omp_directive): Do not set TREE_BLOCK on
8863         clauses.
8864
8865 2006-01-25  Roger Sayle  <roger@eyesopen.com>
8866
8867         PR rtl-optimization/25703
8868         * combine.c (try_combine): Handle zero_extract and strict_low_part
8869         of non-lowpart SUBREGs for constant reg_subword_p set optimization.
8870
8871 2006-01-25  Peter Bergner  <bergner@vnet.ibm.com>
8872
8873         * global.c: Fix comment typos.
8874
8875 2006-01-25  Andrew Pinski  <pinskia@physics.uc.edu>
8876
8877         PR target/25758
8878         * config/i386/i386.c (output_pic_addr_const) <case SYMBOL_REF>:
8879         Use output_addr_const instead of assemble_name.
8880
8881 2006-01-25  Paolo Bonzini  <bonzini@gnu.org>
8882
8883         * Makefile.in (sched-vis.o): Update dependencies.
8884         * haifa-sched.c (sched_finish): Clear current_sched_info.
8885         * cfg.c (dump_bb_info): New, split from dump_flow_info.
8886         (dump_flow_info): Call it.
8887         * passes.c (execute_todo): Call print_rtl_slim_with_bb to make
8888         a slim RTL dump.
8889         * basic-block.h (dump_bb_info): Declare.
8890         * tree-dump.c (dump_enable_all): OR the flags of a -fdump-tree-all
8891         option, and apply options only for dump files whose TDF_RTL,
8892         TDF_TREE, or TDF_IPA bits match.
8893         * rtl.h: Declare new functions exported from sched-vis.c.
8894         * sched-vis.c: Enable also if scheduling is not used.
8895         (print_value): Print the mode of registers if not inside scheduling.
8896         (print_insn): Make it work outside the scheduler.  Beautify the output
8897         a bit.
8898         (dump_insn_slim, debug_insn_slim, print_rtl_slim_with_bb): New.
8899
8900 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
8901
8902         * doc/rtl.texi (SYMBOL_REF_CONSTANT, SYMBOL_REF_DATA): Document.
8903         * gengtype.c (adjust_field_rtx_def): Garbage-collect field 2 of
8904         a SYMBOL_REF as either a tree or a constant_descriptor_rtx,
8905         depending on the value of CONSTANT_POOL_ADDRESS_P.
8906         * optabs.c (init_one_libfunc): Nullify SYMBOL_REF_DATA rather than
8907         SYMBOL_REF_DECL.
8908         * varasm.c (make_decl_rtl, build_constant_desc): Set SYMBOL_REF_DATA
8909         rather than SYMBOL_REF_DECL.
8910         (rtx_constant_pool): Remove const_rtx_sym_htab.
8911         (const_desc_rtx_sym_hash, const_desc_rtx_sym_eq): Delete.
8912         (init_varasm_status): Don't initialize const_rtx_sym_htab.
8913         (force_const_mem): Point SYMBOL_REF_DATA to the constant pool entry.
8914         Remove handling of const_rtx_sym_htab.
8915         (find_pool_constant): Delete.
8916         (get_pool_constant, get_pool_constant_mark): Use SYMBOL_REF_CONSTANT
8917         rather than find_pool_constant.
8918         (get_pool_constant_for_function): Delete.
8919         (get_pool_mode, mark_constant): Use SYMBOL_REF_CONSTANT rather than
8920         find_pool_constant.
8921         * rtl.h (rtunion_def): Add rt_constant and rt_ptr fields.
8922         (X0CONSTANT, X0PTR, SYMBOL_REF_DATA): New macros.
8923         (SYMBOL_REF_DECL): Return NULL if CONSTANT_POOL_ADDRESS_P.
8924         (SYMBOL_REF_CONSTANT): New macro.
8925         (get_pool_constant_for_function): Delete.
8926         * config/i386/winnt.c (i386_pe_mark_dllexport): Set SYMBOL_REF_DATA
8927         rather than SYMBOL_REF_DECL.
8928         (i386_pe_mark_dllimport): Likewise.
8929         * config/rs6000/rs6000.c (rs6000_emit_move): Copy SYMBOL_REF_DATA
8930         rather than SYMBOL_REF_DECL.
8931         * config/darwin.c (machopic_indirect_data_reference): Likewise.
8932         (machopic_indirect_call_target): Likewise.
8933
8934 2006-01-25  Eric Botcazou  <ebotcazou@adacore.com>
8935
8936         * flow.c (delete_noop_moves): Add missing EOL to dump message.
8937
8938 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
8939
8940         * genattrtab.c (gen_bypass): Allow bypasses to contain whitespace.
8941
8942 2006-01-25  Kaz Kojima  <kkojima@gcc.gnu.org>
8943
8944         * config/sh/predicates.md (sh_register_operand): Accept CONST_DOUBLE.
8945
8946 2006-01-24  David Daney  <ddaney@avtrex.com>
8947
8948         PR java/25816
8949         * configure.ac (enable_tls): New enable option.
8950         (HAVE_AS_TLS): Don't do assembler check if enable_tls set.
8951         * configure: Regenerate.
8952         * doc/install.texi (--enable-tls): Document new option.
8953         (--disable-tls): Ditto.
8954
8955 2006-01-24  Richard Henderson  <rth@redehat.com>
8956
8957         * alias.h (ALIAS_SET_MEMORY_BARRIER): New.
8958         * alias.c (true_dependence): Respect it.
8959         (canon_true_dependence, write_dependence_p): Likewise.
8960         * builtins.c (get_builtin_sync_mem): Set it.
8961
8962 2006-01-25  Zdenek Dvorak <dvorakz@suse.cz>
8963
8964         * loop-iv.c (iv_analysis_loop_init): Use df analysis in a more
8965         efficient way.
8966
8967 2006-01-24  DJ Delorie  <dj@redhat.com>
8968
8969         * expmed.c (store_bit_field): Don't arbitrarily deny using insv
8970         for storing constants in single-bit bitfields.
8971
8972 2006-01-25  Ben Elliston  <bje@au.ibm.com>
8973
8974         * dfp.c (dfp_byte_swap): Use uint32_t and not unsigned long.
8975
8976 2006-01-24  Andrew Pinski  <pinskia@physics.uc.edu>
8977
8978         PR tree-opt/25860
8979         * tree-ssa-pre.c (phi_translate): Return NULL
8980         for AGGREGATE_TYPE's.
8981
8982 2006-01-24  Zack Weinberg  <zackw@panix.com>
8983
8984         * genautomata.c (process_state_for_insn_equiv_partition):
8985         Use xcalloc for insn_arcs_array.
8986         * vec.h (DEF_VEC_ALLOC_FUNC_I): New set of templates.
8987         (DEF_VEC_ALLOC_I): Use it, not DEF_VEC_ALLOC_FUNC_P.
8988
8989 2006-01-24  Richard Henderson  <rth@redhat.com>
8990
8991         * genextract.c (VEC_safe_set_locstr): Take VEC by reference;
8992         update all callers.
8993
8994 2006-01-23  Paolo Bonzini  <bonzini@gnu.org>
8995
8996         PR rtl-optimization/25890
8997         PR rtl-optimization/25905
8998         * combine.c (expand_compound_operation, expand_field_assignment):
8999         Fail if the bitfield's final position is out of bounds.
9000
9001 2006-01-24  Ian Lance Taylor  <ian@airs.com>
9002
9003         PR middle-end/25930
9004         * cgraphunit.c (cgraph_output_in_order): Don't clear
9005         cgraph_asm_nodes until after asm strings have been output.
9006
9007 2006-01-23  Adam Nemet  <anemet@caviumnetworks.com>
9008
9009         * fix-header.c (read_scan_file): Add new parameter imultilib when
9010         calling register_include_chains.
9011
9012 2006-01-23  Diego Novillo  <dnovillo@redhat.com>
9013
9014         * omp-low.c: Update documentation.
9015
9016 2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
9017             Daniel Berlin  <dberlin@dberlin.org>
9018
9019         PR tree-opt/25315
9020         PR tree-opt/25857
9021         * tree-ssa-pre.c (insert_extra_phis): If an incomming edge is abnormal
9022         return from the function.
9023
9024 2006-01-22  Zack Weinberg  <zackw@panix.com>
9025
9026         * rtl.def (match_code): Add second argument.
9027         * genpreds.c (write_extract_subexp): New function.
9028         (write_match_code): Add path argument.  Use write_extract_subexp.
9029         (write_predicate_expr): Pass path to write_match_code.
9030         (mark_mode_tests): MATCH_CODE applied to a subexpression does
9031         not perform a mode test.
9032         * genrecog.c (compute_predicate_codes): MATCH_CODE applied to
9033         a subexpression does not constrain the top-level code set.
9034         * read-rtl.c (read_rtx_variadic): New function.
9035         (read_rtx_1): Use it; allow AND and IOR to be variadic.
9036         * doc/md.texi: Document new notation.
9037         * config/i386/predicates.md (cmpsi_operand_1): Fold into ...
9038         (cmpsi_operand): ... here, using new notation.
9039
9040 2006-01-22  Zack Weinberg  <zackw@panix.com>
9041
9042         * varray.c: Remove GENERATOR_FILE #ifdefs.
9043
9044 2006-01-22  Zack Weinberg  <zackw@panix.com>
9045
9046         * genautomata.c (output_reserved_units_table): Emit nothing if
9047         description->query_units_num is zero.  Remove extra blank line.
9048         (output_cpu_unit_reservation_p): Short circuit
9049         if description->query_units_num is zero.
9050
9051 2006-01-22  Zack Weinberg  <zackw@panix.com>
9052
9053         * genattrtab.c: Don't include genattrtab.h.  Define ATTR_NONE
9054         and ATTR_SPECIAL (from genattrtab.h).  Don't define num_dfa_decls
9055         nor any of the random handful of variables that used to be necessary
9056         when this program was linked with rtlanal.o.  Prune set of forward
9057         function declarations.
9058         (struct attr_desc): Remove static_p field.
9059         (hash_obstack, temp_obstack, attr_hash_table, attr_printf)
9060         (check_attr_test, make_internal_attr, make_numeric_value): Make static.
9061         (attr_string): Do not read the character one past the length of
9062         the string.
9063         (write_attr_get, find_attr, make_internal_attr): Don't touch static_p.
9064         (struct insn_reserv, all_insn_reservs, last_insn_reserv_p)
9065         (n_insn_reservs, gen_insn_reserv, struct bypass_list, all_bypasses)
9066         (n_bypasses, gen_bypass_1, gen_bypass, process_bypasses)
9067         (make_automaton_attrs): New.
9068         (main): Do not call into genautomata.  Call local gen_bypass
9069         and gen_insn_reserv as appropriate.  Call make_automaton_attrs.
9070         Remove special case for insn_alts.
9071         * genautomata.c: Include gensupport.h; not genattrtab.h nor
9072         varray.h (leftover from previous change).  Prune set of forward
9073         function declarations.  Remove state_alts fields from all
9074         structures.  Remove state_alts_table from struct automaton.
9075         Make everything except main static.  Do not maintain num_dfa_decls.
9076         Do not maintain state_alts fields of various structures.
9077         (process_decls): Don't validate condexp for dm_insn_reserv decls.
9078         (add_arc): Remove state_alts argument.  All callers updated.
9079         (output_reserved_units_table): Emit #ifdef here...
9080         (output_tables): ...not here.  Don't generate state_alts tables.
9081         (expand_automata): Don't generate attributes.
9082         (write_automata): Don't generate state_alts functions.
9083         (main): New function.
9084         (it_is_empty_reserv_sets, output_state_alts_full_vect_name)
9085         (output_state_alts_comb_vect_name, output_state_alts_check_vect_name)
9086         (AUTOMATON_STATE_ALTS_MACRO_NAME, INTERNAL_STATE_ALTS_FUNC_NAME)
9087         (STATE_ALTS_FUNC_NAME, INSN_DEFAULT_LATENCY_FUNC_NAME)
9088         (BYPASS_P_FUNC_NAME, output_state_alts_table)
9089         (output_automata_list_state_alts_code, output_internal_state_alts_func)
9090         (output_state_alts_func, make_insn_alts_attr, make_bypass_attr)
9091         (make_internal_dfa_insn_code_attr, make_default_insn_latency_attr):
9092         Delete.
9093         * genattr.c: Declare internal_dfa_insn_code in insn-attr.h.
9094         * genattrtab.h: Delete file.
9095         * Makefile.in (OBJS-common): Add insn-automata.o.
9096         (insn-automata.o): New rule.
9097         (simple_generated_c): Add insn-automata.c.
9098         (build/genattrtab.o, build/genautomata.o): Update dependencies.
9099         (genprogmd): Add automata.
9100         (build/genattrtab): Needs no extra objects nor libraries.
9101         (build/genautomata): Needs build/vec.o and -lm.
9102
9103 2006-01-22  Zack Weinberg  <zackw@panix.com>
9104
9105         * genautomata.c (process_state_longest_path, max_dfa_issue_rate)
9106         (output_dfa_max_issue_rate, locked_states_num): Delete.
9107         (struct automaton): Add locked_states field.
9108         (output_dead_lock_vect): Save number of locked states in
9109         automaton->locked_states.  If it is zero, don't print anything.
9110         (output_max_insn_queue_index_def): Define max_insn_queue_index const.
9111         (output_internal_dead_lock_func): Only test the dead_lock_vect
9112         for automata that have locked states.
9113         (output_statistics): Always print the number of locked states for
9114         each automaton.  Calculate total number of locked states here.
9115         (write_automata): Don't call output_dfa_max_issue_rate.
9116         * genattrtab.c: Define length_unit_log as a const variable.
9117         * genattr.c: Don't emit MAX_DFA_ISSUE_RATE.  Declare
9118         max_insn_queue_index const.
9119         * final.c (length_unit_log): Declare const.
9120         * doc/tm.texi: Remove all references to MAX_DFA_ISSUE_RATE.
9121
9122 2006-01-22  Zack Weinberg  <zackw@panix.com>
9123
9124         * genautomata.c: Include vec.h, not varray.h.
9125         Delete vla_ptr_t, all of the VLA_PTR_ macros, and all of the
9126         VLA_HWINT_ macros.  Change vla_hwint_t to a typedef for
9127         VEC(vect_el_t,heap) *.  Convert all uses of VLA_* macros to
9128         VEC_* macros operating on appropriately typed vectors, or to
9129         malloced arrays when the size is known in advance.  Const-ify
9130         many char* variables and function arguments.  No functional changes.
9131         * Makefile.in (build/varray.o): Delete rule.
9132         (build/genattrtab): Depend on build/vec.o instead of build/varray.o.
9133         (build/genautomata.o): Depend on vec.h instead of $(VARRAY_H).
9134
9135 2006-01-22  Zack Weinberg  <zackw@panix.com>
9136
9137         * gensupport.c: Define get_insn_name and record_insn_name here.
9138         (read_md_rtx): Call record_insn_name as appropriate.
9139         * genattr.c, genattrtab.c, gencodes.c, genconfig.c, genemit.c
9140         * genextract.c, genflags.c, genopinit.c, genoutput.c, genpeep.c
9141         * genpreds.c, genrecog.c: Don't define get_insn_name nor
9142         record_insn_name.
9143         * Makefile.in (BUILD_SUPPORT, BUILD_PRINT): Fold into BUILD_RTL.
9144         (BUILD_VARRAY): Delete.
9145         (genprognormal): Rename genprogmd.  Fold in all programs from
9146         genprognoprint; also attrtab.
9147         (build/genattrtab): Just mention genautomata.o and varray.o.
9148         Reorganize a bit, add comments to make the categories clearer.
9149
9150 2006-01-22  Zack Weinberg  <zackw@panix.com>
9151
9152         * genconditions.c (condition_table, add_condition): Delete.
9153         (write_conditions): Don't emit n_insn_conditions nor
9154         insn_elision_unavailable.  Issue the gcc version #ifdef here,
9155         inside the table, with no #else clause ...
9156         (write_header): ...not here.
9157         (write_writer): New function.
9158         (main): Don't initialize condition_table.  Use add_c_test.
9159         Call write_writer.
9160         * gensupport.c (init_md_reader_args_cb): Handle multiple input
9161         files on the command line.
9162         (maybe_eval_c_test): Don't check insn_elision_unavailable.
9163         Return -1 if there is no entry in the table, don't abort.
9164         (add_c_test, traverse_c_tests): New functions.
9165         * gensupport.h (insn_elision_unavailable, insn_conditions)
9166         (n_insn_conditions): Delete declarations.
9167         (add_c_test, traverse_c_tests): Declare.
9168         * read-rtl.c: Include gensupport.h.
9169         (read_conditions): New function.
9170         (read_rtx): If read_rtx_1 returns 0, treat as EOF.
9171         (read_rtx_1): If we get EOF when we were looking for an initial
9172         open paren, return 0.  Call read_conditions when appropriate.
9173         * Makefile.in: Kill BUILD_EARLY_SUPPORT and all references to
9174         dummy-conditions.o.  Eliminate references to insn-conditions.o,
9175         or change them to build/gencondmd.o, as appropriate.  Remove
9176         insn-constants.h from $(simple_generated_h) and insn-conditions.c
9177         from $(simple_generated_c).  For all files remaining in those
9178         two lists, add insn-conditions.md to the generator command line.
9179         Give insn-constants.h/s-constants their own rules.  Add rules
9180         for build/gencondmd.c, s-conditions, insn-conditions.md, s-condmd.
9181         (build/read-rtl.o): Depend on gensupport.h.
9182         (genprognormal): Include preds.
9183         (genprogearly): Rename genprognoprint; only difference is now that
9184         they don't link with $(BUILD_PRINT).
9185         * dummy-conditions.c: Delete.
9186
9187 2006-01-22  Zack Weinberg  <zackw@panix.com>
9188
9189         * genextract.c: Don't include insn-config.h.  Do include vec.h.
9190         Declare vectors of int, char, and locstr.
9191         (locstr): New typedef.
9192         (struct extraction): Make all array fields into bare pointers.
9193         (insn_name_ptr, insn_name_ptr_size): Move down by get_insn_name.
9194         (insn_code_number): Delete.
9195         (accum_extract): New struct.
9196         (VEC_safe_set_locstr, VEC_char_to_string): New functions.
9197         (gen_insn): Take insn_code_number as an argument.  Use an
9198         accum_extract structure instead of loading data directly into
9199         a struct extraction, and having to know how big it might get.
9200         (walk_rtx): Operate entirely on an accum_extract structure.
9201         (print_path): Avoid unnecessary use of printf.
9202         (print_header): New function, split out of main.  Distinguish
9203         more carefully between an unrecognizable insn and an insn that
9204         has the code number of a define_expand.
9205         (main): Pass insn_code_number to gen_insn.  Call print_header
9206         only after parsing.  Avoid unnecessary use of printf.
9207         * Makefile.in (build/vec.o): New rule.
9208         (build/genextract): Depend on build/vec.o.
9209         (build/genextract.o): Don't depend on insn-config.h.
9210
9211 2006-01-22  Zack Weinberg  <zackw@panix.com>
9212
9213         * Makefile.in: Consolidate most rules that use $(CC_FOR_BUILD) and/or
9214         $(RUN_GEN).  Use pattern rules to factor out as much boilerplate as
9215         practical.  Eliminate per-generator-program link rules.
9216
9217 2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
9218
9219         PR middle-end/24437
9220         * tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
9221         with a call expr to ...
9222         * fold-const.c (fold_ternary) <case CALL_EXPR>: Here.
9223
9224 2006-01-23  Richard Guenther  <rguenther@suse.de>
9225
9226         * cfgloopmanip.c (lv_adjust_loop_entry_edge): Add comment
9227         before make_edge with conditional EDGE_TRUE_VALUE.
9228
9229 2006-01-23  Steven Bosscher  <stevenb.gcc@gmail.com>
9230         Jan Hubicka  <jh@suse.cz>
9231         Richard Guenther  <rguenther@suse.de>
9232
9233         PR rtl-optimization/25654
9234         * cfgexpand.c (aggregate_contains_union_type): New function.
9235         (add_alias_set_conflicts): Call it.  Make sure to add conflicts
9236         for structure variables that contain a union type.
9237
9238 2006-01-23  Richard Sandiford  <richard@codesourcery.com>
9239
9240         * gengtype.c (new_structure): Return the structure.
9241         (create_option): Add an extra "next" argument.
9242         (create_field): New function.
9243         (adjust_field_rtx_def): Use create_option and create_field.
9244         Remove a now-unnecessary call to find_structure.
9245         (adjust_field_tree_def): Likewise.
9246         (note_yacc_type): Remove an unnecessary call to find_structure.
9247         * gengtype.h (new_structure): Return the structure.
9248         (create_option): Add an extra argument.
9249         * gengtype-yacc.y (type): Remove unnecessary calls to find_structure.
9250         (option): Adjust calls to create_option.
9251
9252 2006-01-22  David Edelsohn  <edelsohn@gnu.org>
9253
9254         * config/rs6000/aix.h (STACK_BOUNDARY): Define.
9255
9256 2006-01-22  Paul Brook  <paul@codesourcery.com>
9257         Peter Barada  <peter@the-baradas.com>
9258
9259         * config/m68k/m68k.md: Add Coldfire FPU support.
9260         Define FP mode macro and associated attributes.
9261         Use it for float mode patterns.
9262         * config/m68k/linux.h (FUNCTION_VALUE): Use m68k_function_value.
9263         (LIBCALL_VALUE): Use m68k_libcall_value.
9264         * config/m68k/m68k-protos.h (m68k_libcall_value): Add prototype.
9265         (m68k_function_value): Ditto.
9266         (emit_move_sequence): Ditto.
9267         * config/m68k/m68kemb.h (LIBCALL_VALUE): Use m68k_libcall_value.
9268         * config/m68k/m68k-none.h (ASM_SPEC): Add mcfv4e.
9269         * config/m68k/t-m68kelf (MULTILIB_OPTIONS): Add mcfv4e.
9270         (MULTILIB_EXCEPTIONS): Ditto.
9271         * config/m68k/m68k.opt: Add mcfv4e.
9272         * config/m68k/m68k.c (m68k_handle_option): Handle OPT_mcfv4e.
9273         (m68k_compute_frame_layout): Include space for ColdFire FPU regs.
9274         (m68k_output_function_prologue): Save ColdFire FPU registers.
9275         (m68k_output_function_epilogue): Restore ColdFire FPU registers.
9276         (force_mode, fp_reg_operand, emit_move_sequence): New functions.
9277         (m68k_regno_mode_ok): Don't allow types larget than 8 bytes in
9278         ColdFire FPU registers.
9279         (m68k_libcall_value, m68k_function_value): New functions.
9280         * config/m68k/netbsd-elf.h (FUNCTION_VALUE): Use m68k_function_value.
9281         (LIBCALL_VALUE): Use m68k_libcall_value.
9282         * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Define __mcfv4e__.
9283         (MASK_COLDFIRE): Add MASK_CFV4E.
9284         (TARGET_COLDFIRE_FPU, TARGET_HARD_FLOAT, TARGET_FP_REG_SIZE): New.
9285         (MODES_TIEABLE_P): Use TARGET_HARD_FLOAT.
9286         (REG_CLASS_FROM_LETTER, PREFERRED_RELOAD_CLASS): Ditto.
9287         (GO_IF_COLDFIRE_FPU_LEGITIMATE_ADDRESS): Define.
9288         (GO_IF_LEGITIMATE_ADDRESS): Use it.
9289         (LEGITIMIZE_ADDRESS): Handle ColdFire FPU addresses.
9290         * doc/invoke.tex: Document -mcfv4e on m68k.
9291
9292 2006-01-22  Ranjit Mathew  <rmathew@gcc.gnu.org>
9293
9294         * doc/contribute.texi: Change CVS to SVN and update the corresponding
9295         URL.
9296
9297 2006-01-21  Gabriel Dos Reis  <gdr@integrable-solutions.net>
9298
9299         PR c++/16190
9300         * c-opts.c (c_common_handle_option): Don't include
9301         -Wnon-virtual-dtor in -Wall; enable if -Weffc++.
9302         * doc/invoke.texi (C++ Dialect Options): Document that
9303         -Wnon-virtual-dtor is no longer included in -Wall.
9304
9305 2006-01-21  Joseph S. Myers  <joseph@codesourcery.com>
9306
9307         * gcov.c (print_version), gcov-dump.c (print_version),
9308         mips-tdump.c (main), mips-tfile.c (main): Update copyright notice
9309         dates.
9310
9311 2006-01-21  Kenneth Zadeck <zadeck@naturalbridge.com>
9312
9313         * df-scan.c (problem_SCAN): Added NULL reset function.
9314         (df_scan_reset_blocks): Added code to call reset block function
9315         (df_bb_refs_delete) Fixed comment.
9316         (df_insn_refs_delete): Made tolerant of deleting non existent info
9317         for dataflow problems that need to be reset.
9318         * df-core.c (df_set_blocks): Ditto.
9319         * df.h (struct df_problem): Added reset_fun.
9320         * df-problems.c (problem_RU, problem_RD, problem_LR, problem_UR,
9321         problem_UREC, problem_CHAIN, problem_RI): Initialized reset_fun field.
9322         (df_chain_insn_reset, df_chain_bb_reset, df_chain_reset): New
9323         functions to clear out all references to def-use or use-def chains.
9324
9325 2006-01-21  Ben Elliston  <bje@au.ibm.com>
9326
9327         * varasm.c (assemble_real): Initialise data array.
9328
9329 2006-01-20  Paul Brook  <paul@codesourcery.com>
9330
9331         Merge from csl-arm-branch.
9332         2005-09-21  Kazu Hirata  <kazu@codesourcery.com>
9333         * config/arm/arm.md (movdi): Force operands[1] to a register
9334         if we have a non-register source.
9335         (*arm_movdi, *movdf_soft_insn): Require that one of the
9336         operands be a register.
9337         * config/arm/iwmmxt.md (*iwmmxt_arm_movdi): Likewise.
9338         * config/arm/vfp.md (*arm_movdi_vfp, *movdf_vfp): Likewise.
9339
9340 2006-01-20  DJ Delorie  <dj@redhat.com>
9341
9342         * varasm.c (initialize_constant_valid_p): Allow pointers
9343         initialized from integer constants of lesser precision.
9344         (output_constant): Allow non-int-sized pointer modes to be
9345         initialized from integer constants.
9346
9347 2006-01-20  Joseph S. Myers  <joseph@codesourcery.com>
9348
9349         PR libstdc++/25524
9350         * cppdefault.h (struct default_include): Add multilib flag.
9351         * cppdefault.c (cpp_include_defaults): Set it.
9352         * c.opt (-imultilib): New option.
9353         * c-opts.c (imultilib): New.
9354         (c_common_handle_option): Handle -imultilib.
9355         (c_common_post_options): Likewise.
9356         * c-incpath.c (add_standard_paths, register_include_chains):
9357         Likewise.
9358         * c-incpath.h (register_include_chains): Add extra parameter.
9359         * gcc.c (do_spec_1): Generate -imultilib option.
9360         (The Specs Language): Update %I description.
9361         (process_command): Update copyright notice.
9362         * doc/cppopts.texi (-imultilib): Document.
9363         * doc/invoke.texi (-imultilib): Include in option summary.
9364         (%I): Update specs documentation.
9365
9366 2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>
9367
9368         * loop-iv.c (iv_analysis_loop_init): Use df in more conservative way.
9369
9370 2006-01-20  Richard Sandiford  <richard@codesourcery.com>
9371
9372         * stmt.c (case_bit_test_cmp): Stabilize the sort using code
9373         label numbers.
9374
9375 2006-01-20  Richard Guenther  <rguenther@suse.de>
9376         Steven Bosscher <stevenb.gcc@gmail.com>
9377
9378         PR rtl-optimization/24626
9379         * cfgloopmanip.c (lv_adjust_loop_entry_edge): Don't set
9380         EDGE_TRUE_VALUE if in RTL mode.
9381
9382         Revert
9383         2005-03-30 Mostafa Hagog <mustafa@il.ibm.com>
9384         * cfgrtl.c (rtl_verify_flow_info_1): Fix.
9385
9386 2006-01-20  Dirk Mueller  <dmueller@suse.com>
9387
9388         PR c++/5520
9389         * c-parser.c (c_parser_if_body): Use build_empty_stmt()
9390         instead of a special NOP marker.
9391         * c-typeck.c (c_finish_if_stmt): Remove obsoleted special
9392         NOP marker handling.
9393         * c-common.h (empty_body_warning): Add forward declaration.
9394         * c-common.c (empty_body_warning): Add (from c_finish_if_stmt).
9395         Now uses IS_EMPTY_STMT() instead of special NOP markers.
9396
9397 2006-01-20  Paul Brook  <paul@codesourcery.com>
9398
9399         * Makefile.in (lang_checks): Keep going if mkdir fails.
9400
9401 2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
9402
9403         * df-scan.c (df_scan_free_bb_info): Added basic block parameter to
9404         be able to clean out basic block when not necessary.
9405         (df_scan_free): Fixed to properly delete information if df is
9406         unused before calling df_finish.
9407         (df_scan_alloc, df_rescan_blocks, df_reg_chain_unlink,
9408         df_insn_create_insn_record, df_bb_refs_record): Fixed formatting
9409         or comment typos.
9410         (df_bb_refs_delete): New function.
9411         (df_refs_delete): Moved per block code to df_bb_refs_delete.
9412         * df-core.c (df_set_blocks): Added code to properly clean out
9413         unused blocks if they are not part of the blocks to consider.
9414         Added additional null check.
9415         (df_compact_blocks): Added basic block parameter to free_bb_fun to
9416         be able to clean out basic block when not necessary
9417         * df.h (df_free_bb_function): Ditto.
9418         (df_bb_refs_delete): New function.
9419         * df-problems.c (df_ru_free_bb_info, df_rd_set_bb_info,
9420         df_lr_set_bb_info, df_ur_free_bb_info, df_urec_free_bb_info):Added
9421         basic block parameter to be able to clean out basic block when not
9422         necessary.
9423         (df_ru_alloc, df_rd_alloc): Fixed dyslexic overflow test.
9424         (df_ru_free, df_rd_free, df_lr_free, df_ur_free, df_urec_free):
9425         Fixed to properly delete information if df is unused before
9426         calling df_finish.
9427
9428 2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
9429
9430         PR rtl-optimization/25799
9431         * df-problems.c (df_ru_confluence_n, df_rd_confluence_n):
9432         Corrected confluence operator to remove bits from op2 before oring
9433         with op1 rather than removing bits from op1.
9434         (df_ru_transfer_function): Corrected test on wrong bitmap which
9435         caused infinite loop.  Both of these problems were introduced in
9436         the dataflow rewrite.
9437
9438 2006-01-19  DJ Delorie  <dj@redhat.com>
9439
9440         * reload1.c (find_reload_regs): Note the details of reload
9441         failures in the dump file.
9442         (spill_failure): Likewise.
9443
9444 2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>
9445
9446         * loop-iv.c: Include df.h and hashtab.h.
9447         (enum iv_grd_result): New enum.
9448         (DF_REF_IV, DF_REF_IV_SET): New macros.
9449         (struct biv_entry): New.
9450         (df, bivs): New global variables.
9451         (struct insn_info, insn_info, last_def, bivs, max_insn_no, max_reg_no,
9452         assign_luids, mark_sets, kill_sets, mark_single_set, simple_set_p):
9453         Removed.
9454         (clear_iv_info, latch_dominating_def, record_iv, iv_analyze_expr,
9455         iv_analyze_result, iv_analyze_def, biv_hash, biv_eq,
9456         analyzed_for_bivness_p, record_biv): New functions.
9457         (iv_analysis_loop_init, iv_get_reaching_def, simple_reg_p,
9458         get_biv_step_1, get_biv_step, iv_analyze_biv, iv_analyze_op,
9459         iv_analyze, biv_p, iv_analysis_done): Work with df representation of
9460         UD chains.
9461         (iv_constant, iv_subreg, iv_extend, iv_mult, iv_shift): Do not set
9462         analysed.
9463         (iv_number_of_iterations): Use new interface to iv analysis.
9464         * loop-unroll.c: Do not include varray.h.
9465         (analyze_iv_to_split_insn): Use new interface to iv
9466         analysis.
9467         * loop-unswitch.c (may_unswitch_on): Ditto.
9468         * df.c (df_bitmaps_free): Only work for bbs for that structures are
9469         allocated.
9470         (df_bb_modify): Realloc tables to the new index.
9471         (df_find_use): New function.
9472         * df.h (df_find_use): Declare.
9473         * optabs.c (expand_unop): Make the mode of the REG_EQUAL node be
9474         outmode.
9475         * cfgloop.h (struct rtx_iv): Remove analysed field.
9476         (iv_get_reaching_def): Removed.
9477         (iv_analyze_result, iv_analyze_expr, iv_current_loop_df): Declare.
9478         * Makefile.in (loop-unroll.o): Remove VARRAY_H dependency.
9479         (loop-iv.o): Add df.h and hashtab.h dependency.
9480         * df-problems.c (df_ru_alloc, df_rd_alloc): Fix memory reallocation.
9481
9482 2006-01-20  Alan Modra  <amodra@bigpond.net.au>
9483
9484         PR target/25668
9485         * libgcc2.c (__floatdisf, __floatdidf): Don't use IBM Extended
9486         Double TFmode.
9487         (__floatundisf, __floatundidf): Likewise.
9488         * libgcc2.h (IS_IBM_EXTENDED): Define.
9489
9490 2006-01-19  DJ Delorie  <dj@redhat.com>
9491
9492         * config/m32c/m32c.h (REG_ALLOC_ORDER): Define.
9493
9494 2006-01-19  Paul Brook  <paul@codesourcery.com>
9495
9496         * config/arm/arm.c (arm_compute_func_type): Treat all functions
9497         as nothrow when unwinding tables are disabled.
9498
9499 2006-01-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
9500
9501         PR testsuite/25171
9502         * c-decl.c (check_bitfield_type_and_width): Don't issue pedwarn "type
9503         of bit-field" when in system header.
9504
9505 2006-01-19  DJ Delorie  <dj@redhat.com>
9506
9507         * config/m32c/m32c.c (m32c_prepare_shift): Add code to deal with
9508         the 16 bit shift limit of the m16c.
9509
9510 2006-01-19  Andrew Pinski  <pinskia@physics.uc.edu>
9511
9512         PR target/22099
9513         * config/i386/i386.md (builtin_setjmp_receiver): Don't emit the label.
9514         * config/i386/i386.c (output_set_got): Output the label if we have one
9515         for the TARGET_DEEP_BRANCH_PREDICTION case.
9516
9517 2006-01-19  Jan Hubicka  <jh@suse.cz>
9518             H.J. Lu  <hongjiu.lu@intel.com>
9519             Evandro Menezes <evandro.menezes@amd.com>
9520
9521         * invoke.texi (generic): Document
9522         (i686) Update.
9523         * config.gcc: Make x86_64-* and i686-* default to generic tunning.
9524         * i386.h (TARGET_GENERIC32, TARGET_GENERIC64, TARGET_GENERIC,
9525         TARGET_USE_INCDEC, TARGET_PAD_RETURNS): New macros.
9526         (x86_use_incdec, x86_pad_returns): New variables
9527         (TARGET_CPU_DEFAULT_generic): New constant
9528         (TARGET_CPU_DEFAULT_NAMES): Add generic.
9529         (enum processor_type): Add generic32 and generic64.
9530         * i386.md (cpu attribute): Add generic32/generic64
9531         (movhi splitter): Behave sanely when both partial_reg_dependency and
9532         partial_reg_stall are set.
9533         (K8 splitters): Enable for generic as well.
9534         * predicates.md (incdec_operand): Use TARGET_INCDEC
9535         (aligned_operand): Avoid memory mismatch stalls.
9536         * athlon.md: Enable for generic64, new patterns for 128bit moves.
9537         * ppro.md: Enable for generic32
9538         * i386.c (generic64_cost, generic32_cost): New.
9539         (m_GENERIC32, m_GENERIC64, m_GENERIC): New macros.
9540         (x86_use_leave): Enable for generic64.  (x86_use_sahf,
9541         x86_ext_80387_constants): Enable for generic32.  (x86_push_memory,
9542         x86_movx, x86_unroll_strlen, x86_deep_branch, x86_use_simode_fiop,
9543         x86_use_cltd, x86_promote_QImode, x86_sub_esp_4, x86_sub_esp_8,
9544         x86_add_esp_4, x86_add_esp_8, x86_integer_DFmode_moves,
9545         x86_partial_reg_dependency, x86_memory_mismatch_stall,
9546         x86_accumulate_outgoing_args, x86_prologue_using_move,
9547         x86_epilogue_using_move, x86_arch_always_fancy_math_387,
9548         x86_sse_partial_reg_dependency, x86_four_jump_limit, x86_schedule):
9549         Enable for generic.
9550         (x86_use_incdec, x86_pad_returns): New.
9551         (override_options): Add generic32 and generic64, translate "generic"
9552         to generic32/generic64 and "i686" to "generic32", refuse
9553         "generic32"/"generic64" as arch target.
9554         (ix86_issue_rate, ix86_adjust_cost): Handle generic as athlon.
9555         (ix86_reorg): Honor PAD_RETURNS.
9556
9557 2006-01-19  Diego Novillo  <dnovillo@redhat.com>
9558
9559         * tree-pretty-print.c (dump_generic_node): Handle
9560         OMP_PARALLEL_FN, OMP_PARALLEL_DATA_ARG and OMP_RETURN_EXPR.
9561         * cgraph.c (cgraph_expand_queue): Rename from
9562         cgraph_analyze_queue.  Update all users.
9563         * cgraphunit.c (cgraph_assemble_pending_functions): Process
9564         cgraph_expand_queue.
9565         (cgraph_expand_all_functions): Likewise.
9566         (cgraph_finalize_pending_functions): Remove.  Update callers.
9567
9568         * tree.h (OMP_DIRECTIVE_P): Define.
9569         (OMP_PARALLEL_FN): Define.
9570         (OMP_PARALLEL_DATA_ARG): Define.
9571         (OMP_SECTIONS_SECTIONS): Define.
9572         * tree-pass.h (pass_expand_omp): Declare.
9573         * omp-low.c (struct omp_region): Declare.
9574         (struct omp_context): Remove fields 'parallel_type',
9575         'parallel_start_ix' and 'parallel_start_additional_args'.
9576         Update all users.
9577         (struct omp_for_data): Rename from struct expand_omp_for_data.
9578         (omp_regions): New static variable.
9579         (root_omp_region): New static variable.
9580         (find_omp_clause): Make static.
9581         (is_in_combined_parallel_ctx): Remove.
9582         (is_combined_parallel): New.
9583         (extract_omp_for_data): Move earlier in the file.
9584         (workshare_safe_to_combine_p): New.
9585         (get_ws_args_for): New.
9586         (determine_parallel_type): Move earlier in the file.
9587         (omp_copy_decl_2): Do not set DECL_CONTEXT of new local to the
9588         child function.
9589         (omp_copy_decl): Likewise.
9590         (create_omp_child_function): Likewise.
9591         (lookup_omp_region): New.
9592         (dump_omp_region): New.
9593         (debug_omp_region): New.
9594         (debug_all_omp_regions): New.
9595         (new_omp_region): New.
9596         (scan_omp_parallel): If parallel_nesting_level > 1, the
9597         directive is nested within another parallel directive.
9598         Set OMP_PARALLEL_FN.
9599         (scan_omp_for): Do not try to handle combined parallel+for
9600         cases.
9601         Remove FIXME comment.
9602         (scan_omp_nested): Remove.
9603         (scan_omp_1): Do not call scan_omp_nested when
9604         parallel_nesting_level is > 1.
9605         Do not change the DECL_CONTEXT of local variables found.
9606         (lookup_decl_in_outer_ctx): New.
9607         (lower_rec_input_clauses): Rename from expand_rec_input_clauses.
9608         (lower_lastprivate_clauses): Rename from expand_lastprivate_clauses.
9609         (lower_reduction_clauses): Rename from expand_reduction_clauses.
9610         (lower_copyprivate_clauses): Rename from expand_copyprivate_clauses.
9611         If CTX is nested, lookup VAR in the outer context when
9612         building copy assignment.
9613         (lower_send_clauses): Rename from expand_send_clauses.
9614         If CTX is nested, lookup VAR in the outer context when
9615         building copy assignments.
9616         (lower_send_shared_vars): Rename from expand_send_shared_vars.
9617         If CTX is nested, lookup VAR in the outer context when
9618         building copy assignments.
9619         (expand_parallel_call): Rename from build_parallel_call.
9620         Handle combined parallel+workshare cases.
9621         Re-implement to emit code into the CFG.
9622         (list2chain): New.
9623         (expand_omp_parallel): Re-implement to emit code into the CFG.
9624         Call move_sese_region_to_fn to outline the sub-graph
9625         containing the parallel region.
9626         (expand_omp_for_1): Remove.
9627         (expand_omp_for_generic): Re-implement to emit code into the
9628         CFG.
9629         (expand_omp_for_static_nochunk): Likewise.
9630         (expand_omp_for_static_chunk): Likewise.
9631         (expand_omp_for): Likewise.
9632         (expand_omp_sections): Likewise.
9633         (remove_exit_barriers): New.
9634         (expand_omp_synch): New.
9635         (expand_omp): New.
9636         (build_omp_regions_1): New.
9637         (build_omp_regions): New.
9638         (execute_expand_omp): New.
9639         (gate_expand_omp): New.
9640         (pass_expand_omp): Define.
9641         (lower_omp_sections): Rename from expand_omp_sections.
9642         Set OMP_SECTIONS_SECTIONS.
9643         (lower_omp_single_simple): Rename from expand_omp_single_simple.
9644         (lower_omp_single_copy): Rename from expand_omp_single_copy.
9645         (lower_omp_single): Rename from expand_omp_simple.
9646         (lower_omp_master): Rename from expand_omp_master.
9647         (lower_omp_ordered): Rename from expand_omp_ordered.
9648         (lower_omp_critical): Rename from expand_omp_critical.
9649         (lower_omp_for_lastprivate): Rename from expand_omp_for_lastprivate.
9650         (lower_omp_for): Re-implement.
9651         (lower_omp_parallel): Re-implement.
9652         (lower_regimplify): Rename from expand_regimplify.
9653         (lower_omp_1): Rename from expand_omp_1.
9654         If there are syntax errors in the program, replace every
9655         OpenMP directive with NOP.
9656         Call lower_omp_* instead of expand_omp_*.
9657         (lower_omp): Rename from expand_omp.
9658
9659         * tree-gimple.c (is_gimple_stmt): Handle OMP_RETURN_EXPR.
9660         * tree-gimple.h (enum omp_parallel_type): Remove.
9661         (gimple_boolify): Declare extern.
9662         (find_omp_clause, determine_parallel_type): Remove.
9663
9664         * gimple-low.c (lower_omp_directive): New.
9665         (lower_stmt): Call it.
9666         (record_vars_into): Move from ...
9667         (record_vars): ... here.
9668         Call record_vars_into with current_function_decl.
9669
9670         * gimplify.c (struct gimplify_ctx): Remove fields
9671         combined_pre_p and combined_ctxp.  Update users.
9672         (get_formal_tmp_var): Add documentation.
9673         (gimple_boolify): Make extern.
9674         (gimplify_expr_in_ctx): Remove.  Update callers.
9675         (gimplify_omp_parallel): Do not assume that OMP_PARALLEL_BODY
9676         will always be a BIND_EXPR.
9677         (gimplify_expr): Handle OMP_RETURN_EXPR.
9678         * tree.def (BLOCK): Remove documentation about BLOCK_TYPE_TAGS.
9679         (OMP_PARALLEL): Add 3 operands.
9680         (OMP_SECTIONS): Add 1 operand.
9681         (OMP_RETURN_EXPR): Define.
9682
9683         * tree-inline.c (estimate_num_insns_1): Handle OpenMP directives.
9684         (copy_tree_r): Restore TREE_CHAIN in OMP_CLAUSE_*.
9685         * tree-iterator.c (alloc_stmt_list): Assert that we are not
9686         creating a circular free list.
9687         (free_stmt_list): Assert that we are not freeing stmt_list_cache.
9688
9689         * tree-flow.h (move_sese_region_to_fn): Declare.
9690         (record_vars_into): Declare.
9691         * tree-cfg.c (make_omp_sections_edges): New.
9692         (make_exit_edges): Handle OMP_PARALLEL, OMP_FOR, OMP_SINGLE,
9693         OMP_MASTER, OMP_ORDERED, OMP_CRITICAL, OMP_RETURN_EXPR,
9694         OMP_SECTIONS and OMP_SECTION.
9695         (is_ctrl_altering_stmt): Return true for OMP_DIRECTIVE_P.
9696         (set_bb_for_stmt): Undo change to check currently_expanding_to_rtl.
9697         (verify_stmt): Do not handle OMP_DIRECTIVE_P.
9698         (gather_blocks_in_sese_region): New.
9699         (struct move_stmt_d): Declare.
9700         (move_stmt_r): New.
9701         (move_block_to_fn): New.
9702         (move_sese_region_to_fn): New.
9703
9704         * passes.c (init_optimization_passes): Schedule
9705         pass_expand_omp after pass_init_datastructures.
9706
9707         * tree-ssa-operands.c (get_expr_operands): Handle
9708         OMP_PARALLEL, OMP_SECTIONS, OMP_FOR, OMP_RETURN_EXPR,
9709         OMP_SINGLE, OMP_MASTER, OMP_ORDERED, OMP_CRITICAL.
9710
9711 2006-01-19  Jeff Law  <law@redhat.com>
9712
9713         * tree-vrp.c (extract_range_from_assert): Refine the result range
9714         if the variable referenced by the ASSERT_EXPR has a range and
9715         either the tentative result range or the previous range is a
9716         VR_ANTI_RANGE.
9717
9718 2006-01-19  Richard Sandiford  <richard@codesourcery.com>
9719
9720         * c-decl.c (add_flexible_array_elts_to_size): Simplify vector accesses.
9721
9722 2006-01-19  Jan Hubicka  <jh@suse.cz>
9723
9724         * tree-vect-patterns.c (vect_pattern_recog_1): Prevent parse error.
9725
9726 2006-01-19  Paolo Bonzini  <bonzini@gnu.org>
9727
9728         * combine.c (try_combine): Do not worry about MEMs wrapped by USEs.
9729         (expand_compound_operation, expand_field_assignment): Fail if the
9730         bit lengths of an extract operation are out of range.
9731         (make_extraction): Compute wanted_inner_mode based on the position
9732         and length of the extraction.  Make it extraction_mode for non-constant
9733         positions, and do not modify offset in that case.  When generating a
9734         new MEM, use a mode that can hold the extraction while keeping correct
9735         alignment.  Remove code that supported MEMs wrapped by USEs.
9736         (simplify_shift_const_1, force_to_mode) <case USE>: Remove.
9737
9738 2006-01-19  Andreas Krebbel  <krebbel1@de.ibm.com>
9739
9740         * config/s390/s390.md ("Y", "y"): New mode attribute.
9741         ("*cmpdi_ccs", "*cmpsi_ccs", "*adddi3_imm_cc", "*adddi3_carry1_cc",
9742         "*adddi3_carry1_cconly", "*adddi3_carry2_cc", "*adddi3_carry2_cconly",
9743         "*adddi3_cc", "*adddi3_cconly", "*adddi3_cconly2", "*adddi3_64",
9744         "*addsi3_imm_cc", "*addsi3_carry1_cc",
9745         "*addsi3_carry1_cconly", "*addsi3_carry2_cc", "*addsi3_carr2_cconly",
9746         "*addsi3_cc", "*addsi3_cconly", "*addsi3_cconly2",
9747         "*subdi3_borrow_cc", "*subdi3_borrow_cconly", "*subdi3_cc",
9748         "*subdi3_cc2", "*subdi3_cconly", "*subdi3_cconly2", "*subdi3_64",
9749         "*subsi3_borrow_cc", "*subsi3_borrow_cconly", "*subsi3_cc",
9750         "*subsi3_cc2", "*subsi3_cconly", "*subsi3_cconly", "*subsi3_cconly2",
9751         "addsi3", "subsi3"): Insn patterns removed.
9752         ("*add<mode>3_carry1_cc", "*add<mode>3_carry1_cconly",
9753         "*add<mode>3_carry2_cc", "*add<mode>3_carry2_cconly", "*add<mode>3_cc",
9754         "*add<mode>3_cconly", "*add<mode>3_cconly2", "*add<mode>3_imm_cc",
9755         "*sub<mode>3_borrow_cc", "*sub<mode>3_borrow_cconly",
9756         "*sub<mode>3_cc", "*sub<mode>3_cc2", "*sub<mode>3_cconly",
9757         "*sub<mode>3_cconly2"): New insn patterns.
9758         ("addsi3", "subsi3"): New expanders.
9759
9760 2006-01-19  Dorit Nuzman  <dorit@il.ibm.com>
9761
9762         * Makefile.in (tree-vect-patterns.o): Add rule for new file.
9763         * tree-vect-analyze.c (vect_determine_vectorization_factor): Use
9764         existing STMT_VINFO_VECTYPE if available.
9765         (vect_mark_relevant): Add special handling for stmts that are
9766         marked as STMT_VINFO_IN_PATTERN_P.
9767         (vect_analyze_loop): Call vect_pattern_recog.
9768         * tree-vectorizer.c (new_stmt_vec_info): Initialize new fields.
9769         * tree-vectorizer.h (in_pattern_p, related_stmt): New fields in
9770         stmt_info.
9771         (STMT_VINFO_IN_PATTERN_P, STMT_VINFO_RELATED_STMT): New macros.
9772         (vect_recog_func_ptr): New function-pointer type.
9773         * tree-vect-patterns.c: New file.
9774         (vect_recog_widen_sum_pattern, vect_recog_widen_mult_pattern):
9775         (vect_recog_dot_prod_pattern, vect_pattern_recog):
9776         (vect_pattern_recog_1): New functions.
9777         (vect_pattern_recog_funcs): New array of function pointers.
9778
9779         * tree-vectorizer.h (ternary_op): New enum value.
9780         * tree-vect-transform.c (vect_create_epilog_for_reduction): Added
9781         declaration. Revised documentation. Removed redundant dump prints.
9782         Removed redundant argument. Added support for reduction patterns.
9783         (vectorizable_reduction): Added support for reduction patterns.
9784         (vect_transform_stmt): Added support for patterns.
9785
9786         * expr.c (expand_expr_real_1): Added case for DOT_PROD_EXPR.
9787         * genopinit.c (udot_prod_optab, sdot_prod_optab): Initialize.
9788         * optabs.c (optab_for_tree_code): Added case for DOT_PROD_EXPR.
9789         (expand_widen_pattern_expr): New function.
9790         (init_optabs): Initialize new optabs udot_prod_optab,
9791         sdot_prod_optab.
9792         * optabs.h (OTI_sdot_prod, OTI_udot_prod): New.
9793         (sdot_prod_optab, udot_prod_optab): Define new optabs.
9794         (expand_widen_pattern_expr): New function declaration.
9795         * tree.def (DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR): New
9796         tree-codes.
9797         * tree-inline.c (estimate_num_insns_1): Added cases for new
9798         tree-codes DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
9799         * tree-pretty-print.c (dump_generic_node): Likewise.
9800         (op_prio): Likewise.
9801         (op_symbol): Added cases for WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
9802         * tree-ssa-operands.c (get_expr_operands): Added case for
9803         DOT_PROD_EXPR.
9804         * tree-vect-patterns.c (widened_name_p): New function.
9805         (vect_recog_dot_prod_pattern): Added function implementation.
9806         * tree-vect-transform.c (get_initial_def_for_reduction): Added
9807         cases for DOT_PROD_EXPR, WIDEN_SUM_EXPR.
9808         * config/rs6000/altivec.md (udot_prod<mode>, sdot_prodv8hi): New.
9809         * config/i386/sse.md (sdot_prodv8hi, udot_prodv4si): New.
9810
9811         * expr.c (expand_expr_real_1): Added case for WIDEN_SUM_EXPR.
9812         * genopinit.c (widen_ssum_optab, widen_usum_optab): Initialize.
9813         * optabs.c (optab_for_tree_code): Added case for WIDEN_SUM_EXPR.
9814         (init_optabs): Initialize new optabs widen_ssum_optab,
9815         widen_usum_optab.
9816         * optabs.h (OTI_widen_ssum, OTI_widen_usum): New.
9817         (widen_ssum_optab, widen_usum_optab): Define new optabs.
9818         * tree-vect-generic.c: (expand_vector_operations_1): Check type of
9819         use instead of type of def.
9820         * tree-vect-patterns.c (vect_recog_widen_sum_pattern): Added
9821         function implementation.
9822         * config/rs6000/altivec.md (widen_usum<mode>, widen_ssumv16qi,
9823         widen_ssumv8hi): New.
9824
9825         * doc/tm.texi (ssum_widen, usum_widen, sdot_prod, udot_prod): New
9826         patterns.
9827
9828 2006-01-19  Richard Sandiford  <richard@codesourcery.com>
9829
9830         PR c/25805
9831         * c-decl.c (add_flexible_array_elts_to_size): New function.
9832         (finish_decl): Use it.
9833
9834 2006-01-18  Andrew Pinski  <pinskia@physics.uc.edu>
9835
9836         * diagnostic.h: Include options.h.
9837         * config/rs6000/x-darwin (host-ppc-darwin.o): Correct the
9838         dependancies for diagnostic.h.
9839         * Makefile.in (DIAGNOSTIC_H): Add options.h.
9840
9841 2006-01-16  Daniel Berlin  <dberlin@dberlin.org>
9842
9843         * tree-ssa-operands.h (ssa_call_clobbered_cache_valid): Remove.
9844         (ssa_ro_call_cache_valid): Ditto.
9845         * tree-ssa-alias.c (sort_tags_by_id): New function.
9846         (init_transitive_clobber_worklist): Ditto.
9847         (add_to_worklist): Ditto.
9848         (mark_aliases_call_clobbered): Ditto.
9849         (compute_tag_properties): Ditto.
9850         (set_initial_properties): Ditto.
9851         (compute_call_clobbered): Ditto.
9852         (compute_may_aliases):  Call compute_call_clobbered and grouping.
9853         (compute_flow_sensitive_aliasing): Remove clobbering related code.
9854         (compute_flow_insensitive_aliasing): Grouping now happens in our
9855         caller.
9856         (setup_pointers_and_addressables): Remove clobbering related code.
9857         (add_may_alias): Ditto.
9858         (replace_may_alias): Ditto.
9859         (get_nmt_for): Ditto.
9860         (create_global_var):
9861         (is_escape_site): Return an escape_type enumeration.
9862         * tree-flow-inline.h (is_call_clobbered): Global var does not
9863         imply call clobbered.
9864         (mark_call_clobbered): Take a reason for marking this. Remove
9865         marking of globalness, and cache invalidation.
9866         (clear_call_clobbered): Remove cache invalidation code.
9867         * tree-dfa.c (dump_variable): If details is on, dump the reason
9868         for escaping.
9869         * tree-outof-ssa.c (create_temp): Copy escape mask from original
9870         variable.
9871         * tree-flow.h (struct ptr_info_def): Add escape mask member.
9872         (struct var_ann_d): Ditto.
9873         (enum escape_type): New.
9874         (mark_call_clobbered): Adjust prototype.
9875         * tree-ssa-structalias.c (update_alias_info): Unmodifiable vars
9876         are never call clobbered.
9877         Record reasons for escaping.
9878         * tree-ssa-structalias.h (is_escape_site): Update prototype.
9879         * tree-ssa-operands.c (ssa_call_clobbered_cache_valid): Remove.
9880         (ssa_ro_call_cache_valid): Ditto.
9881         (clobbered_v_may_defs): Ditto.
9882         (clobbered_vuses): Ditto.
9883         (ro_call_vuses): Ditto.
9884         (clobber_stats): New.
9885         (init_ssa_operands): Zero out clobber stats.
9886         (fini_ssa_operands): Print out clobber stats.
9887         (get_call_expr_operands): Pass callee fndecl to
9888         add_call_read_ops).
9889         (add_call_clobber_ops): Remove use of cache.
9890         Add use of PURE_CONST information.
9891         (add_call_read_ops): Remove use of cache.
9892         Add use of static not_read information.
9893
9894 2006-01-18  Alexandre Oliva  <aoliva@redhat.com>
9895
9896         Introduce TLS descriptors for i386 and x86_64.
9897         * config/i386/i386.h (TARGET_GNU2_TLS): New macro.
9898         (TARGET_ANY_GNU_TLS): New macro.
9899         (enum tls_dialect): Added TLS_DIALECT_GNU2.
9900         (struct machine_function): Add tls_descriptor_call_expanded_p.
9901         (ix86_tls_descriptor_calls_expande_in_cfun): New macro.
9902         (ix86_current_function_calls_tls_descriptor): Likewise.
9903         * config/i386/i386.c (ix86_tls_dialect): Fix typo in comment.
9904         (override_options): Introduce gnu2 tls dialect.
9905         (ix86_frame_pointer_required): Functions containing TLSCALLs are
9906         not leaves.
9907         (ix86_select_alt_pic_regnum, ix86_compute_frame_layout):
9908         Likewise.
9909         (legitimize_tls_address): Adjust logic for GNU2 TLS.
9910         (ix86_init_machine_status): Initialize new field.
9911         (ix86_tls_get_addr): Use TARGET_ANY_GNU_TLS.
9912         (ix86_tls_module_base): New.
9913         * config/i386/i386-protos.h (ix86_tls_module_base): Declare it.
9914         * config/i386/i386.md (UNSPEC_TLSDESC): New constant.
9915         (tls_global_dynamic_32, tls_global_dynamic_64): Handle GNU2 TLS.
9916         (tls_local_dynamic_base_32, tls_local_dynamic_base_64): Likewise.
9917         (tls_dynamic_gnu2_32, *tls_dynamic_lea_32): New patterns.
9918         (*tls_dynamic_call_32, *tls_dynamic_gnu2_combine_32): Likewise.
9919         (tls_dynamic_gnu2_64, *tls_dynamic_lea_64): Likewise.
9920         (*tls_dynamic_call_64, *tls_dynamic_gnu2_combine_64): Likewise.
9921         * config/i386/predicates.md (tls_modbase_operand): New.
9922         (tp_or_register_operand): New.
9923
9924 2006-01-18  Daniel Berlin  <dberlin@dberlin.org>
9925
9926         * ipa-reference.c (check_operand): Allow FUNCTION_DECL.
9927         (look_for_address_of): Ditto.
9928         (ipa_init): Walk the function decls.
9929         (static_execute): Don't set readonly on FUNCTION_DECL's.
9930
9931 2006-01-18  Roger Sayle  <roger@eyesopen.com>
9932
9933         * config/i386/i386.md (shift spliter): Fix a a typo in the splitter
9934         for shifts where the source and destination registers are different.
9935
9936 2006-01-18  Paul Brook  <paul@codesourcery.com>
9937
9938         Merge from csl-arm-branch.
9939         2005-03-14  Julian Brown  <julian@codesourcery.com>
9940         * config/arm/lib1funcs.asm (ashldi3): Don't define on SymbianOS.
9941         (aeabi_llsl): Likewise.
9942         (ashrdi3): Likewise.
9943         (aeabi_lasr): Likewise.
9944         (lshrdi3): Likewise.
9945         (aeabi_llsr): Likewise.
9946         2005-03-10  Julian Brown  <julian@codesourcery.com>
9947         * config.gcc: Disable shared libgcc for SymbianOS.
9948         * config/arm/t-symbian (LIB2ADDEH): Include config/arm/pr-support.c.
9949
9950 2006-01-18  DJ Delorie  <dj@redhat.com>
9951
9952         * c-pragma.c (handle_pragma_diagnostic): New.
9953         (init_pragma): Register it.
9954         * doc/extend.texi: Document it.
9955
9956         * diagnostic.def: Add DK_UNSPECIFIED and DK_IGNORED.
9957         * diagnostic.h (diagnostic_classify_diagnostic): Declare.
9958         (diagnostic_context): Add classify_diagnostic[].
9959         * diagnostic.c (diagnostic_count_diagnostic): Don't count warnings
9960         as errors if they're overridden to DK_WARNING.
9961         (diagnostic_initialize): Initialize classify_diagnostic[].
9962         (diagnostic_set_kind_override): New.
9963         (diagnostic_report_diagnostic): Check for kind changes.
9964         * opts.c (common_handle_option): Take lang_mask.  Update callers.
9965         Handle OPT_Werror_.
9966         * common.opt (Werror=): New.
9967         * doc/invoke.texi: Document -Werror=*
9968
9969 2006-01-18  Jeff Law  <law@redhat.com>
9970
9971         * tree-vrp.c (test_for_singularity): Correct test for new
9972         min limit.  Use operand_equal_p rather than pointer equality
9973         for testing if new min/max values are equal.
9974
9975         * tree-ssa-propagate.c (substitute_and_fold): Delay simplifications
9976         using range information until after propagation and folding.
9977
9978 2006-01-18  Richard Henderson  <rth@redhat.com>
9979             Aldy Hernandez  <aldyh@redhat.com>
9980             Jakub Jelinek  <jakub@redhat.com>
9981             Diego Novillo  <dnovillo@redhat.com>
9982
9983         * omp-low.c: New file.
9984         * c-omp.c: New file.
9985
9986 2006-01-18  Richard Henderson  <rth@redhat.com>
9987             Jakub Jelinek  <jakub@redhat.com>
9988             Diego Novillo  <dnovillo@redhat.com>
9989
9990         * doc/invoke.texi: Document -fopenmp.
9991         * tree-dump.h (debug_function): Declare.
9992         * hooks.c (hook_bool_tree_bool_false): New function.
9993         (hook_tree_tree_null): Remove.
9994         (hook_tree_tree_tree_null): New.
9995         * hooks.h: Update to match.
9996         * tree-pretty-print.c (debug_tree_chain): New.
9997         (print_generic_expr): Handle TDF_CHAIN.
9998         (dump_generic_node): Handle BLOCK.
9999         Do not abort with incomplete SWITCH_EXPRs.
10000         Do not dump body of an OpenMP directive if TDF_SLIM is given.
10001         <case OMP_PARALLEL, OMP_FOR, OMP_SECTIONS>: Don't
10002         print space after directive name.
10003         <OMP_FOR>: Handle printing OMP_FOR_PRE_BODY.
10004         Handle OMP_MASTER and OMP_ORDERED.
10005         Handle printing of OMP_BODY just in one place, goto
10006         dump_omp_body in the rest of OMP_* nodes that have
10007         OMP_BODY.
10008         Don't handle clause nodes here.  Update omp statements to
10009         use dump_omp_clauses.
10010         Handle OMP_SINGLE, OMP_SECTIONS, OMP_SECTION,
10011         OMP_CLAUSE_ORDERED, OMP_CLAUSE_SCHEDULE, OMP_ATOMIC,
10012         OMP_CRITICAL, OMP_CLAUSE_NOWAIT, GOMP_CLAUSE_IF,
10013         GOMP_CLAUSE_NUM_THREADS, GOMP_FOR, GOMP_CLAUSE_SHARED,
10014         GOMP_CLAUSE_FIRSTPRIVATE, GOMP_CLAUSE_LASTPRIVATE,
10015         GOMP_CLAUSE_COPYIN and GOMP_CLAUSE_COPYPRIVATE.
10016         Adjust output for GOMP_PARALLEL.
10017         (dump_omp_clauses): New.
10018         (print_declaration): Dump DECL_VALUE_EXPR.
10019         (op_symbol_1): Split out of op_symbol.
10020         (dumping_stmts): Remove.  Update all users.
10021         * cgraph.c (cgraph_analyze_queue): New.
10022         (cgraph_add_new_function): New.
10023         * cgraph.h (cgraph_analyze_queue): Declare.
10024         (cgraph_add_new_function): Declare.
10025         (cgraph_lower_function): Remove.
10026         * tree.c (walk_tree): Walk OMP_CLAUSE_CHAIN of OMP_CLAUSE_*
10027         nodes.  Use switch for all nodes, handle most of IS_EXPR_CODE_CLASS
10028         and TYPE_P nodes in its default clause.
10029         (empty_body_p): New.
10030         (tree_range_check_failed): New.
10031         (build5_stat): New.
10032         * tree.h (OMP_CLAUSE_REDUCTION_INIT,
10033         OMP_CLAUSE_REDUCTION_MERGE,
10034         OMP_CLAUSE_REDUCTION_PLACEHOLDER,
10035         OMP_CLAUSE_PRIVATE_DEBUG,
10036         OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE, OMP_FOR_PRE_BODY,
10037         OMP_MASTER_BODY, OMP_ORDERED_BODY OMP_BODY,
10038         OMP_CLAUSES, OMP_CLAUSE_DECL, OMP_CLAUSE_DEFAULT_KIND,
10039         OMP_CLAUSE_CHAIN, OMP_CLAUSE_OUTER_DECL,
10040         OMP_CLAUSE_INNER_DECL, OMP_CLAUSE_NUM_THREADS_EXPR,
10041         OMP_CLAUSE_IF_EXPR, OMP_CLAUSE_SCHEDULE_CHUNK_EXPR,
10042         OMP_CLAUSE_SCHEDULE_CHUNK_SIZE. OMP_PARALLEL_VAR_INIT,
10043         OMP_PARALLEL_VAR_REDUC, OMP_FOR_VAR_INIT,
10044         OMP_FOR_VAR_LAST, OMP_FOR_VAR_REDUC,
10045         OMP_SECTIONS_VAR_INIT, OMP_SECTIONS_VAR_LAST,
10046         OMP_SECTIONS_VAR_REDUC, OMP_CLAUSE_REDUCTION_CODE
10047         OMP_SINGLE_CLAUSES, OMP_SINGLE_BODY,
10048         OMP_CLAUSE_SCHEDULE_CHUNK_SIZE, OMP_SECTION_BODY,
10049         OMP_CRITICAL_NAME, OMP_CRITICAL_BODY): New.
10050         (TREE_RANGE_CHECK): New.
10051         (empty_body_p): Declare.
10052         (enum omp_clause_default_kind): New.
10053         (build_string_literal): Declare.
10054         (enum omp_clause_schedule_kind, OMP_CLAUSE_SCHEDULE_KIND): New.
10055         (build5_stat, build5): Declare.
10056         * tree-pass.h (TDF_CHAIN): Define.
10057         * tree-pass.h (PROP_gimple_lomp): Define.
10058         (pass_lower_omp): Declare.
10059         * diagnostic.h (debug_tree_chain): Declare.
10060         * builtins.c (get_builtin_sync_mode): Use 0 as last argument to
10061         mode_for_size.
10062         (expand_builtin): Handle sync BUILT_IN_*_16 builtins.
10063         * builtins.c (build_string_literal): Make extern.
10064         * gcc.c (include_spec_function): New.
10065         (static_spec_functions): Add it.
10066         (main): Move load of libgomp.spec ...
10067         (LINK_COMMAND_SPEC): ... here.
10068         (link_gomp_spec): New.
10069         (static_specs): Include it.
10070         (LINK_COMMAND_SPEC): Add link_gomp.
10071         (GOMP_SELF_SPECS): New.
10072         (driver_self_specs): Include it.
10073         (switch_matches): Don't mark inline.
10074         (main): Load libgomp.spec.
10075         * tree-gimple.c (is_gimple_stmt): True for OMP_MASTER,
10076         OMP_ORDERED, OMP_CRITICAL, OMP_SECTIONS, OMP_SECTION,
10077         and OMP_SINGLE, OMP_FOR and OMP_PARALLEL.
10078         * tree-gimple.h (enum omp_parallel): Declare.
10079         (determine_parallel_type): Declare.
10080         (omp_firstprivatize_variable): Declare.
10081         (omp_reduction_init): Declare.
10082         (diagnose_omp_structured_block_errors): Declare.
10083         (struct walk_stmt_info): Add want_return_expr.
10084         (struct walk_stmt_info): Add want_bind_expr, want_locations.
10085         (find_omp_clause): Declare.
10086         (insert_field_into_struct): Declare.
10087         (struct walk_stmt_info): Move from tree-nested.c
10088         (walk_stmts): Declare.
10089         * c-cppbuiltin.c (c_cpp_builtins): If -fopenmp, #define _OPENMP
10090         to 200505.
10091         * cgraphunit.c (cgraph_lower_function): Make static.
10092         (cgraph_finalize_pending_functions): New.
10093         (cgraph_finalize_function): Call it.
10094         (cgraph_finalize_compilation_unit): Likewise.
10095         * builtin-types.def (BT_I16, BT_FN_I16_VPTR_I16,
10096         BT_FN_BOOL_VPTR_I16_I16, BT_FN_I16_VPTR_I16_I16): Add.
10097         (BT_FN_UINT_UINT): New.
10098         (DEF_FUNCTION_TYPE_6, DEF_FUNCTION_TYPE_7,
10099         DEF_FUNCTION_TYPE_VAR_4): Document.
10100         (BT_PTR_LONG, BT_PTR_PTR, BT_FN_BOOL, BT_FN_INT,
10101         BT_FN_VOID_PTRPTR, BT_PTR_FN_VOID_PTR,
10102         BT_FN_BOOL_LONGPTR_LONGPTR, BT_FN_VOID_OMPFN_PTR_UINT,
10103         BT_FN_VOID_OMPFN_PTR_UINT_UINT,
10104         BT_FN_BOOL_LONG_LONG_LONG_LONGPTR_LONGPTR,
10105         BT_FN_BOOL_LONG_LONG_LONG_LONG_LONGPTR_LONGPTR,
10106         BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG,
10107         BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG_LONG): New.
10108         * builtins.def: Update DEF_BUILTIN comment to include COND argument.
10109         Move all DEF_SYNC_BUILTIN () and DEF_GOMP_BUILTIN () builtins
10110         into separate files.
10111         (DEF_GOMP_BUILTIN): New.
10112         (BUILT_IN_OMP_GET_THREAD_NUM, BUILT_IN_GOMP_BARRIER,
10113         BUILT_IN_GOMP_CRITICAL_START, BUILT_IN_GOMP_CRITICAL_END,
10114         BUILT_IN_GOMP_CRITICAL_NAME_START, BUILT_IN_GOMP_CRITICAL_NAME_END,
10115         BUILT_IN_GOMP_LOOP_STATIC_START, BUILT_IN_GOMP_LOOP_DYNAMIC_START,
10116         BUILT_IN_GOMP_LOOP_GUIDED_START, BUILT_IN_GOMP_LOOP_RUNTIME_START,
10117         BUILT_IN_GOMP_LOOP_ORDERED_STATIC_START,
10118         BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_START,
10119         BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_START,
10120         BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_START,
10121         BUILT_IN_GOMP_LOOP_STATIC_NEXT, BUILT_IN_GOMP_LOOP_DYNAMIC_NEXT,
10122         BUILT_IN_GOMP_LOOP_GUIDED_NEXT, BUILT_IN_GOMP_LOOP_RUNTIME_NEXT,
10123         BUILT_IN_GOMP_LOOP_ORDERED_STATIC_NEXT,
10124         BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_NEXT,
10125         BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_NEXT,
10126         BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_NEXT,
10127         BUILT_IN_GOMP_PARALLEL_LOOP_STATIC_START,
10128         BUILT_IN_GOMP_PARALLEL_LOOP_DYNAMIC_START,
10129         BUILT_IN_GOMP_PARALLEL_LOOP_GUIDED_START,
10130         BUILT_IN_GOMP_PARALLEL_LOOP_RUNTIME_START,
10131         BUILT_IN_GOMP_LOOP_END, BUILT_IN_GOMP_LOOP_END_NOWAIT,
10132         BUILT_IN_GOMP_ORDERED_START, BUILT_IN_GOMP_ORDERED_END,
10133         BUILT_IN_GOMP_PARALLEL_START, BUILT_IN_GOMP_PARALLEL_END,
10134         BUILT_IN_GOMP_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_NEXT,
10135         BUILT_IN_GOMP_PARALLEL_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_END,
10136         BUILT_IN_GOMP_SECTIONS_END_NOWAIT, BUILT_IN_GOMP_SINGLE_START,
10137         BUILT_IN_GOMP_SINGLE_COPY_START, BUILT_IN_GOMP_SINGLE_COPY_END): New.
10138         * sync-builtins.def: New file, moved from builtins.def.
10139         * omp-builtins.def: New file, moved from builtins.def.
10140         * c-objc-common.h (LANG_HOOKS_OMP_PREDETERMINED_SHARING): Redefine.
10141         * gimple-low.c (lower_function_body): Clear data.
10142         (lower_stmt): Do not handle COMPOUND_EXPR.
10143         Remove call to print_node_brief.
10144         * c-tree.h (c_finish_omp_clauses): New prototype.
10145         (C_DECL_THREADPRIVATE_P): Define.
10146         (lookup_name_no_remap, c_omp_remap_private): Remove
10147         (c_begin_omp_parallel, c_finish_omp_parallel): Update.
10148         (check_for_loop_decls): Update decl.
10149         (lookup_name_no_remap, c_omp_remap_private): Declare.
10150         (build_indirect_ref, build_modify_expr, pushdecl,
10151         pushdecl_top_level): Move to c-common.h.
10152         * dwarf2out.c (loc_descriptor_from_tree_1): Don't set unsignedp
10153         before the switch, but just in the 2 places that need it.
10154         * c-decl.c (diagnose_mismatched_decls): Do not check for
10155         mismatched thread-local attributes when OLDDECL is marked
10156         threadprivate and NEWDECL has no thread-local attributes.
10157         (merge_decls): Merge C_DECL_THREADPRIVATE_P.
10158         (c_gimple_diagnostics_recursively): Rename from
10159         c_warn_unused_result_recursively.  Invoke
10160         diagnose_omp_structured_block_errors.
10161         (check_for_loop_decls): Return a singular decl found.
10162         * langhooks.c (lhd_omp_predetermined_sharing): Return
10163         OMP_CLAUSE_DEFAULT_SHARED for DECL_ARTIFICIAL decls.
10164         (lhd_omp_firstprivatize_type_sizes): New.
10165         (lhd_omp_assignment): New.
10166         (lhd_omp_predetermined_sharing): New.
10167         * langhooks.h (struct gimplify_omp_ctx): Forward declare.
10168         (struct lang_hooks_for_types): Add
10169         omp_firstprivatize_type_sizes, omp_privatize_by_reference,
10170         omp_predetermined_sharing, omp_disregard_value_expr,
10171         omp_private_debug_clause, omp_clause_default_ctor,
10172         omp_clause_copy_ctor, omp_clause_assign_op, omp_clause_dtor.
10173         (c_finish_omp_clauses): New.
10174         (c_finish_bc_stmt): Diagnose break within omp for.
10175         (c_begin_omp_parallel, c_finish_omp_parallel): New.
10176         (build_unary_op): Return error_mark after reporting
10177         a readonly_error.
10178         (build_modify_expr): Likewise.
10179         * gimplify.c: Include optabs.h and pointer-set.h.
10180         (enum gimplify_omp_var_data): Declare.
10181         (struct gimplify_omp_ctx): Declare.
10182         (struct gimplify_ctx): Add fields prev_context, combined_pre_p
10183         and combined_ctxp.
10184         (gimplify_ctxp, gimplify_omp_ctxp): New local variables.
10185         (push_gimplify_context, pop_gimplify_context): Allow nesting.
10186         (splay_tree_compare_decl_uid): New.
10187         (new_omp_context): New.
10188         (delete_omp_context): New.
10189         (gimple_add_tmp_var): Call omp_add_variable.
10190         (gimplify_bind_expr): Likewise.
10191         (gimplify_var_or_parm_decl): If omp_notice_variable returned
10192         true, disregard DECL_VALUE_EXPR on the decl if any.
10193         (gimplify_expr_in_ctx): New.
10194         (omp_firstprivatize_variable, omp_firstprivatize_type_sizes
10195         omp_add_variable, omp_notice_variable, omp_is_private
10196         gimplify_scan_omp_clauses, gimplify_adjust_omp_clauses_1
10197         gimplify_adjust_omp_clauses, gimplify_omp_parallel
10198         gimplify_omp_for, gimplify_omp_workshare, goa_lhs_expr_p
10199         gimplify_omp_atomic_fetch_op, goa_stabilize_expr
10200         gimplify_omp_atomic_pipeline, gimplify_omp_atomic_mutex
10201         gimplify_omp_atomic): New.
10202         (gimplify_expr): Handle OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
10203         OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
10204         OMP_CRITICAL and OMP_ATOMIC.
10205         (gimplify_body): Verify gimplify_ctxp is empty after gimplification.
10206         * c-pragma.h (enum pragma_kind): Add
10207         PRAGMA_OMP_ATOMIC, PRAGMA_OMP_BARRIER,
10208         PRAGMA_OMP_CRITICAL, PRAGMA_OMP_FLUSH, PRAGMA_OMP_FOR,
10209         PRAGMA_OMP_MASTER, PRAGMA_OMP_ORDERED,
10210         PRAGMA_OMP_PARALLEL, PRAGMA_OMP_PARALLEL_FOR,
10211         PRAGMA_OMP_PARALLEL_SECTIONS, PRAGMA_OMP_SECTION,
10212         PRAGMA_OMP_SECTIONS, PRAGMA_OMP_SINGLE,
10213         PRAGMA_OMP_THREADPRIVATE.
10214         * tree.def (OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
10215         OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
10216         OMP_CRITICAL, OMP_ATOMIC, OMP_CLAUSE_PRIVATE,
10217         OMP_CLAUSE_SHARED, OMP_CLAUSE_FIRSTPRIVATE,
10218         OMP_CLAUSE_LASTPRIVATE, OMP_CLAUSE_REDUCTION,
10219         OMP_CLAUSE_COPYIN, OMP_CLAUSE_COPYPRIVATE,
10220         OMP_CLAUSE_IF, OMP_CLAUSE_NUM_THREADS,
10221         OMP_CLAUSE_SCHEDULE, OMP_CLAUSE_NOWAIT,
10222         OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Define.
10223         * print-tree.c (print_node): Dump DECL_VALUE_EXPR.
10224         * tree-ssa-dce.c (find_control_dependence): Do not assume that
10225         ENTRY_BLOCK_PTR->next_bb == single_succ (ENTRY_BLOCK_PTR).
10226         * tree-nested.c (convert_call_expr): Call walk_body on OMP_BODY for
10227         OpenMP directives.
10228         (struct nesting_info): Add field_map,
10229         suppress_expansion, debug_var_chain.
10230         (create_nesting_tree): Initialize them.
10231         (lookup_field_for_decl): Use field_map.
10232         (get_nonlocal_debug_decl, get_local_debug_decl): New.
10233         (convert_local_omp_clauses): New.
10234         (finalize_nesting_tree_1): Add debug_var_chain to toplevel block.
10235         (walk_body): Split out of walk_function.
10236         (convert_nonlocal_omp_clauses, convert_local_omp_clauses): New.
10237         (convert_nonlocal_reference): Handle omp statements.
10238         (convert_local_reference): Likewise.
10239         (unnest_nesting_tree_1): Split out of finalize_nesting_tree_1.
10240         (unnest_nesting_tree): New.
10241         (lower_nested_functions): Call it.
10242         (insert_field_into_struct): Make extern.
10243         (struct walk_stmt_info): Move to tree-gimple.h.
10244         (walk_stmts): Make extern.
10245         * omp-builtins.def: New file.
10246         * tree-iterator.c (expr_only): Clarify comment.
10247         * c-common.h (pushdecl_top_level, pushdecl,
10248         build_modify_expr, build_indirect_ref,
10249         c_finish_omp_master, c_finish_omp_critical,
10250         c_finish_omp_ordered, c_finish_omp_barrier,
10251         c_finish_omp_atomic, c_finish_omp_flush,
10252         c_finish_omp_for, c_split_parallel_clauses,
10253         omp_clause_default_kind, c_omp_sharing_predetermined,
10254         c_omp_remap_decl): Declare.
10255         * Makefile.in (BUILTINS_DEF): Add omp-builtins.def.
10256         (OBJS-common): Add omp-low.o.
10257         (c-omp.o, omp-low.o): Add.
10258         (gimplify.o): Add dependency on $(OPTABS_H).
10259         (GTFILES): Add omp-low.c.
10260         (gt-stringpool.h): Add.
10261         * tree-cfg.c (set_bb_for_stmt): Do not update the
10262         block-to-labels map if we are currently expanding to RTL.
10263         (tree_node_can_be_shared): Remove unnecessary CONSTANT_CLASS_P
10264         checks.
10265         Handle IDENTIFIER_NODE.
10266         (tree_verify_flow_info): Do not ICE when emitting error
10267         messages about invalid labels.
10268         (dump_function_to_file): Reset CFUN before emitting the body
10269         of the function.
10270         (debug_function): New.
10271         * passes.c (init_optimization_passes): Schedule
10272         pass_lower_omp.
10273         * langhooks-def.h (lhd_omp_predetermined_sharing,
10274         lhd_omp_assignment, lhd_omp_firstprivatize_type_sizes):
10275         Declare.
10276         (LANG_HOOKS_OMP_FIRSTPRIVATIZE_TYPE_SIZES): Define.
10277         (LANG_HOOKS_FOR_TYPES_INITIALIZER): Use it.
10278         (LANG_HOOKS_OMP_PRIVATIZE_BY_REFERENCE,
10279         LANG_HOOKS_OMP_PREDETERMINED_SHARING,
10280         LANG_HOOKS_OMP_DISREGARD_VALUE_EXPR,
10281         LANG_HOOKS_OMP_PRIVATE_DEBUG_CLAUSE,
10282         LANG_HOOKS_OMP_CLAUSE_DEFAULT_CTOR,
10283         LANG_HOOKS_OMP_CLAUSE_COPY_CTOR,
10284         LANG_HOOKS_OMP_CLAUSE_ASSIGN_OP,
10285         LANG_HOOKS_OMP_CLAUSE_DTOR): Define.
10286         (LANG_HOOK_DECLS): Use them.
10287
10288 2006-01-18  Dmitry Kurochkin <dmitry.kurochkin@gmail.com>
10289             Richard Henderson  <rth@redhat.com>
10290             Jakub Jelinek  <jakub@redhat.com>
10291             Diego Novillo  <dnovillo@redhat.com>
10292
10293         * c-parser.c (pragma_omp_clause): Define.
10294         (c_parser_declaration_or_fndef): Document OpenMP syntax.
10295         (c_parser_compound_statement): Likewise.
10296         (c_parser_statement): Likewise.
10297         (c_parser_pragma): Handle omp pragmas.
10298         (OMP_FOR_CLAUSE_MASK, OMP_SECTIONS_CLAUSE_MASK,
10299         OMP_PARALLEL_CLAUSE_MASK, OMP_SINGLE_CLAUSE_MASK): Define.
10300         (c_parser_omp_clause_name, check_no_duplicate_clause,
10301         c_parser_omp_variable_list,
10302         c_parser_omp_var_list_parens, c_parser_omp_clause_copyin,
10303         c_parser_omp_clause_copyprivate,
10304         c_parser_omp_clause_default,
10305         c_parser_omp_clause_firstprivate, c_parser_omp_clause_if,
10306         c_parser_omp_clause_lastprivate,
10307         c_parser_omp_clause_nowait,
10308         c_parser_omp_clause_num_threads,
10309         c_parser_omp_clause_ordered, c_parser_omp_clause_private,
10310         c_parser_omp_clause_reduction,
10311         c_parser_omp_clause_schedule, c_parser_omp_clause_shared,
10312         c_parser_omp_all_clauses, c_parser_omp_structured_block,
10313         c_parser_omp_atomic, c_parser_omp_barrier,
10314         c_parser_omp_critical, c_parser_omp_flush,
10315         c_parser_omp_for_loop, c_parser_omp_for,
10316         c_parser_omp_master, c_parser_omp_ordered,
10317         c_parser_omp_sections_scope, c_parser_omp_sections,
10318         c_parser_omp_parallel, c_parser_omp_single,
10319         c_parser_omp_construct, c_parser_omp_threadprivate): New.
10320         * c-pragma.c (init_pragma): Do omp pragma registration here.
10321         * c.opt (fopenmp): New flag.
10322
10323 2006-01-18  Eric Christopher  <echristo@apple.com>
10324
10325         * gcc.c (GOMP_SELF_SPECS): Bracket in #ifndef/#endif.
10326         * config/darwin.h (GOMP_SELF_SPECS): Define.
10327
10328 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
10329
10330         * rtl.h: Remove the prototype for reg_alloc.
10331
10332 2006-01-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
10333
10334         PR target/25731
10335         * config.gcc (hppa*-*-linux*, hppa[12]*-*-hpux10*, hppa*64*-*-hpux11*,
10336         hppa[12]*-*-hpux11*): Override default shared libgcc version for both
10337         sjlj and dwarf2 exception handling.
10338         * pa/t-hpux-shlib (SHLIB_SOVERSION): New make variable.
10339         Rework to allow overriding SHLIB_EXT and SHLIB_SOVERSION.
10340         * pa/pa.c (function_value): Treat complex and vector types as
10341         aggregates.
10342         (function_arg): Likewise.  Only pass scalar floats in the floating
10343         point argument registers.
10344         * pa/t-slibgcc-dwarf-ver: New file.
10345         * pa/t-slibgcc-sjlj-ver: New file.
10346         * pa/t-slibgcc-elf-ver: Delete file.
10347
10348 2006-01-19  Alan Modra  <amodra@bigpond.net.au>
10349
10350         * config/rs6000/rs6000.c (rs6000_assemble_integer): Correct
10351         unlikely_test_section_p test.
10352
10353 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
10354
10355         * mode-switching.c (optimize_mode_switching): Make it static.
10356         * basic-block.h: Remove the prototype for
10357         optimize_mode_switching.
10358
10359         * modulo-sched.c (sms_schedule): Make it static.
10360         * rtl.h: Remove the prototype for sms_schedule.
10361
10362         * postreload-gcse.c (gcse_after_reload_main): Make it static.
10363         * rtl.h: Remove the prototype for gcse_after_reload_main.
10364
10365         * reg-stack.c (reg_to_stack): Make it static.
10366         * rtl.h: Remove the prototype for reg_to_stack.
10367
10368         * regrename.c (regrename_optimize, copyprop_hardreg_forward):
10369         Make them static.
10370         * rtl.h: Remove the prototypes for regrename_optimize and
10371         copyprop_hardreg_forward.
10372
10373 2006-01-18  Eric Botcazou  <ebotcazou@adacore.com>
10374
10375         * config/alpha/alpha.c (alpha_split_tfmode_pair): Rename into
10376         alpha_split_tmode_pair.  Add 'mode' and 'fixup_overlap' arguments.
10377         Test against the appropriate null constant for the mode.
10378         If 'fixup_overlap' is true, swap the operands if they overlap.
10379         (alpha_split_tfmode_frobsign): Adjust call to alpha_split_tfmode_pair.
10380         * config/alpha/alpha-protos.h (alpha_split_tfmode_pair): Rename into
10381         alpha_split_tmode_pair and adjust for above change.
10382         * config/alpha/alpha.md (movtf_internal): Adjust call to
10383         alpha_split_tfmode_pair and rely on it to swap the operands.
10384         (movti_internal): New insn and post-reload splitter.
10385         (movti): New expander.
10386
10387 2006-01-18  Philippe De Muyter  <phdm@macqel.be>
10388
10389         * config/m68k/m68k.md (*addsi3_5200): Allow addq/subq to memory
10390         operands.
10391
10392 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
10393
10394         * rtlanal.c (global_reg_mentioned_p_1,
10395         global_reg_mentioned_p): Remove.
10396         * rtl.h: Remove the prototype for global_reg_mentioned_p.
10397
10398         * flow.c (initialize_uninitialized_subregs): Make it static.
10399         * rtl.h: Remove the prototype for
10400         initialize_uninitialized_subregs.
10401
10402         * function.c (instantiate_virtual_regs): Make it static.
10403         * function.h: Remove the prototype for
10404         instantiate_virtual_regs.
10405
10406         * regmove.c (regmove_optimize, combine_stack_adjustments):
10407         Make them static.
10408         * rtl.h: Remove the prototypes for regmove_optimize and
10409         combine_stack_adjustments.
10410
10411 2006-01-17  Roger Sayle  <roger@eyesopen.com>
10412
10413         * config/i386/i386.c (COSTS_N_BYTES): New macro.
10414         (size_cost): Encode costs in bytes so that a reg-reg addition is
10415         equivalent to COSTS_N_INSNS(1).
10416         (override_options): Use the size_cost.branch_cost as the default
10417         ix86_branch_cost when optimizing for size.
10418
10419 2006-01-18  Ben Elliston  <bje@au.ibm.com>
10420
10421         * Makefile.in (D32PBIT_FUNCS): New.
10422         (D64PBIT_FUNCS, D128PBIT_FUNCS): Likewise.
10423         (libgcc.mk): Set D32PBIT, D64PBIT, D128PBIT, D32PBIT_FUNCS,
10424         D64PBIT_FUNCS and D128PBIT_FUNCS.
10425         (LIBGCC_DEPS): Include $(D32PBIT), $(D64PBIT), $(D128PBIT).
10426         * mklibgcc.in Bring in the DFP support code if D32PBIT, D64PBIT or
10427         D128PBIT are set.
10428         (decnumber_dep): Define.
10429         * doc/libgcc.texi (Decimal float library routines): New node.
10430         * config/dfp-bit.h, config/dfp-bit.c: New files.
10431
10432 2006-01-18  Ben Elliston  <bje@au.ibm.com>
10433
10434         * expr.c (emit_move_change_mode): Always adjust addresses, not
10435         just during reload.  Copy replacements only during reload.
10436         (emit_move_insn_1): Move MODE_DECIMAL_FLOAT modes by invoking
10437         emit_move_via_integer.
10438
10439 2006-01-17  Shantonu Sen  <ssen@opendarwin.org>
10440
10441         * Makefile.in (check-%, check-consistency): Use $${srcdir}
10442         instead of $(srcdir) and ${srcdir}.
10443
10444 2006-01-17  Richard Earnshaw  <rearnsha@arm.com>
10445
10446         PR target/592
10447         PR middle-end/11135
10448         * arm.h (struct machine_function): Add pic_reg.
10449         * arm.c (arm_pic_register): Make unsigned.
10450         (arm_override_options): Only set arm_pic_register if
10451         TARGET_SINGLE_PIC_BASE.
10452         (use_return_insn): Only test for a pic register if it is fixed.
10453         (arm_compute_save_reg0_reg12_mask): Likewise.
10454         (thumb_compute_save_reg_mask): Likewise.
10455         (legitimate_pic_operand): Factor out some known invariants.
10456         (legitimize_pic_address): If we don't have a fixed pic register,
10457         then set up a pseudo in the function entry sequence.  Handle the
10458         pic base being in a pseudo.
10459         (arm_load_pic_register): Handle the pic register being in a pseudo.
10460         (arm_expand_prologue): Only set up the pic register if it is fixed.
10461         (thumb_expand_prologue): Likewise.
10462         * arm.md (pic_load_addr_based): Handle the pic base being a pseudo.
10463         (pic_load_addr_based_insn): Likewise.
10464         (builtin_setjmp_receiver): Don't restore the pic base if it isn't
10465         fixed.
10466
10467 2006-01-18  Ben Elliston  <bje@au.ibm.com>
10468
10469         * config/rs6000/rs6000.c (rs6000_hard_regno_mode_ok): Reject
10470         decimal float modes for all floating point registers.
10471
10472         * config/rs6000/predicates.md (reg_or_mem_operand): Pair up
10473         match_code "mem" with match_test "macho_lo_sum_memory_operand".
10474
10475 2006-01-17  Jakub Jelinek  <jakub@redhat.com>
10476
10477         PR c/25682
10478         * c-typeck.c (build_unary_op): Fold offsetof-like expressions
10479         even when the pointer is not NULL.
10480
10481 2006-01-16  Ian Lance Taylor  <ian@airs.com>
10482
10483         * common.opt (ftoplevel-reorder): New option.
10484         * cgraph.c (cgraph_asm_nodes): New global variable.
10485         (cgraph_asm_last_node): New static variable.
10486         (cgraph_order): New global variable.
10487         (cgraph_create_node): Set new order field.
10488         (cgraph_varpool_node): Likewise.
10489         (decide_is_variable_needed): Return true if not
10490         flag_toplevel_reorder.
10491         (cgraph_add_asm_node): New function.
10492         * cgraph.h (struct cgraph_node): Add order field.
10493         (struct cgraph_varpool_node): Add order field.
10494         (struct cgraph_asm_node): Define.
10495         (cgraph_asm_nodes, cgraph_order): Declare.
10496         (cgraph_add_asm_node): Declare.
10497         * cgraphunit.c (cgraph_varpool_assemble_decl): New static
10498         function.
10499         (cgraph_varpool_assemble_pending_decls): Call it.
10500         (cgraph_output_pending_asms): New static function.
10501         (cgraph_finalize_compilation_unit): Call it.
10502         (struct cgraph_order_sort): Define.
10503         (cgraph_output_in_order): New static function.
10504         (cgraph_optimize): Call cgraph_output_pending_asms.  Add code for
10505         !flag_toplevel_reorder case.
10506         * c-parser.c: Include "cgraph.h".
10507         (c_parser_asm_definition): Call cgraph_add_asm_node rather than
10508         assemble_asm.
10509         * Makefile.in (CRTSTUFF_CFLAGS): Use -fno-toplevel-reorder rather
10510         than -fno-unit-at-a-time.
10511         * doc/invoke.texi (Option Summary): Mention
10512         -fno-toplevel-reorder.
10513         (Optimize Options): Document -fno-toplevel-reorder.  Mention it in
10514         -funit-at-a-time documentation.
10515
10516 2006-01-17  Hans-Peter Nilsson  <hp@axis.com>
10517             Kazu Hirata  <kazu@codesourcery.com>
10518
10519         * Makefile.in (FUNCTION_H, LAMBDA_H): Use $(TREE_H), not tree.h.
10520
10521 2006-01-17  Kazu Hirata  <kazu@codesourcery.com>
10522
10523         * Makefile.in (FUNCTION_H): New.  Use it instead of
10524         function.h throughout the file.
10525         * function.h: Include tree.h.
10526
10527 2006-01-17  Ben Elliston  <bje@au.ibm.com>
10528
10529         * recog.c: Separate some functions with whitespace.
10530
10531 2006-01-16  Richard Henderson  <rth@redhat.com>
10532
10533         Merge from gomp branch:
10534         * Makefile.in (TREE_INLINE_H): New.  Use it as needed.
10535         * tree-inline.h (struct copy_body_data): Move from tree-inline.c
10536         and rename from struct inline_data.  Rename callee* to dst*;
10537         caller* to src*; add copy_decl hook, transform_call_graph_edges,
10538         transform_new_cfg, transform_return_to_modify, and
10539         transform_lang_insert_block flags; remove cloning_p, versioning_p,
10540         update_clones_p.
10541         (copy_body_r, insert_decl_map, remap_decl, remap_type): Declare.
10542         (copy_decl_for_dup): Remove.
10543         * tree-inline.c (struct inline_data): Move to header.
10544         (insert_decl_map): Export.
10545         (remap_decl): Update for member name changes.  Use copy_decl hook.
10546         Allow for replacement to be a non-decl.  Remove dead code.
10547         (remap_type_1): Check for existing mapping.
10548         (remap_type): Export.
10549         (remap_decls): Update for member name changes.
10550         (remap_block, copy_bb, copy_cfg_body, copy_generic_body): Likewise.
10551         (copy_body, setup_one_parameter, declare_return_variable): Likewise.
10552         (expand_call_inline, optimize_inline_calls, clone_body): Likewise.
10553         (copy_tree_r, mark_local_for_remap_r, unsave_expr_now): Likewise.
10554         (tree_function_versioning, build_duplicate_type): Likewise.
10555         (copy_body_r): Likewise.  Export.
10556         (copy_decl_for_dup): Split into ...
10557         (copy_decl_for_dup_finish, copy_decl_to_var,
10558         copy_decl_no_change, copy_decl_maybe_to_var): ... these.
10559         (replace_ref_tree, inlining_p): Remove.
10560
10561 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
10562
10563         * ifcvt.c (if_convert): Make it static.
10564         * rtl.h: Remove the prototype for if_convert.
10565
10566         * local-alloc.c (local_alloc): Make it static.
10567         * rtl.h: Remove the prototype for local_alloc.
10568
10569         * loop.c (loop_optimize): Make it static.
10570         * cfgloop.h: Remove the prototype for loop_optimize.
10571         * rtl.h: Likewise.
10572
10573 2006-01-16  DJ Delorie  <dj@redhat.com>
10574
10575         * reload.c (reg_overlap_mentioned_for_reload_p): Handle subregs of
10576         mems.
10577
10578 2006-01-16  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
10579
10580         * pa.md: Disparage copies between general and floating-point registers
10581         in 32-bit move patterns.
10582
10583 2006-01-16  H.J. Lu  <hongjiu.lu@intel.com>
10584
10585         PR testsuite/25741
10586         * Makefile.in (check-%): Depend on site.exp instead of
10587         $(TESTSUITEDIR)/site.exp. Run "runtest" in separate language
10588         directories.
10589
10590 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
10591
10592         * global.c (global_alloc): Make it static.
10593         * rtl.h: Remove the prototype for global_alloc.
10594
10595 2006-01-16  Richard Guenther  <rguenther@suse.de>
10596
10597         * tree-ssa-alias.c (struct used_part): Add write_only field.
10598         (get_or_create_used_part_for): Initialize it to true.
10599         (create_overlap_variables_for): Don't create structure variables
10600         for structures that only are written to.
10601         (find_used_portions): Handle MODIFY_EXPR to track whether a
10602         structure is only written to.
10603
10604 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
10605
10606         * bb-reorder.c (partition_hot_cold_basic_blocks): Make it
10607         static.
10608         * basic-block.h: Remove the prototype for
10609         partition_hot_cold_basic_blocks.
10610
10611 2006-01-16  Rafael Ãvila de EspÃï¿½ndola <rafael.espindola@gmail.com>
10612
10613         * cppspec.c (lang_specific_spec_functions): Remove.
10614         * gcc.c (lookup_spec_function): Use static_spec_functions directly.
10615         * gcc.h (lang_specific_spec_functions): Remove.
10616         * gccspec.c (lang_specific_spec_functions): Remove.
10617
10618 2006-01-16  Paolo Bonzini  <bonzini@gnu.org>
10619
10620         * combine.c (record_value_for_reg): Invalidate registers
10621         if INSN is null.
10622         (record_dead_and_set_regs_1): Likewise, by passing them to
10623         record_value_for_reg.
10624         (record_dead_and_set_regs): Invalidate stores made by a
10625         call.  We do not combine across a call, but we still
10626         relied on equivalences.
10627
10628 2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>
10629
10630         * tree-vrp.c (extract_range_from_binary_expr): Cope with
10631         vrp_int_const_binop returning non-constant nodes.
10632
10633 2006-01-16  Paul Brook  <paul@codesourcery.com>
10634
10635         * config/m68k/m68k.c (output_move_const_into_data_reg):
10636         Output correct mnemonic for mvz and mvs.
10637
10638 2006-01-16  Gabor Loki  <loki@gcc.gnu.org>
10639
10640         * rtl-factoring.c: Add sequence abstraction algorithm.
10641         * cfgcleanup.c (outgoing_edges_match): Extra checks.
10642         (try_crossjump_to_edge): Avoid deleting preserve label when redirecting
10643         ABNORMAL edges.
10644         (block_has_preserve_label): New function.
10645         * common.opt: Register new pass.
10646         * Makefile.in: Ditto.
10647         * passes.c: Ditto.
10648         * timevar.def: Ditto.
10649         * tree-pass.h: Ditto.
10650         * emit-rtl.c (make_jump_insn_raw): Remove forward decl.
10651         * rtl.h (make_jump_insn_raw): Add forward decl.
10652         * doc/invoke.texi: Add documentation for -frtl-abstract-sequences.
10653
10654 2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>
10655             Roger Sayle  <roger@eyesopen.com>
10656
10657         * fold-const.c (fold_minmax): New static function.
10658         (fold_binary) <MIN_EXPR>: Call it.
10659         <MAX_EXPR>: Likewise.
10660         * stor-layout.c (place_field): Use DECL_SIZE consistently
10661         in the computation of the new record size.
10662
10663 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
10664
10665         * cse.c (cse_condition_code_reg): Make it static.
10666         * rtl.h: Remove the prototype for cse_condition_code_reg.
10667
10668         * combine.c (combine_instructions): Make it static.
10669         * rtl.h: Remove the prototype for combine_instructions.
10670
10671 2006-01-15  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
10672
10673         PR target/25168
10674         * tree.c (get_file_function_name_long): Concatenate the first global
10675         object name with a string derived from the input filename of the object
10676         for type "F".
10677
10678 2006-01-16  Ben Elliston  <bje@au.ibm.com>
10679
10680         * config/i386/winnt-stubs.c: Update FSF address.
10681         * config/xtensa/ieee754-df.S: Ditto.
10682         * config/xtensa/ieee754-sf.S: Ditto.
10683
10684 2006-01-14  Ian Lance Taylor  <ian@airs.com>
10685
10686         * ifcvt.c (noce_init_if_info): New static function, broken out of
10687         noce_process_if_block.
10688         (noce_process_if_block): Call noce_init_if_info.
10689         (check_cond_move_block): New static function.
10690         (cond_move_process_if_block): New static function.
10691         (process_if_block): Call cond_move_process_if_block.
10692
10693 2006-01-15  Kazu Hirata  <kazu@codesourcery.com>
10694
10695         * cselib.c (hash_table): Rename to cselib_hash_table.
10696         (cselib_clear_table, discard_useless_values,
10697         remove_useless_values, cselib_lookup_mem, cselib_lookup,
10698         cselib_init, cselib_finish): Adjust uses of hash_table.
10699
10700 2006-01-14  Kazu Hirata  <kazu@codesourcery.com>
10701
10702         PR tree-optimization/25485
10703         * tree-vrp.c (extract_range_from_binary_expr): Handle cases
10704         where one of the operands of TRUTH_AND_EXPR and TRUTH_OR_EXPR
10705         is known to be false and true, respectively.
10706
10707 2006-01-14  Richard Guenther  <rguenther@suse.de>
10708
10709         PR tree-optimization/22548
10710         PR tree-optimization/22555
10711         PR tree-optimization/22501
10712         * Makefile.in (tree-ssa-structalias.o): Depend on $(PARAMS_H).
10713         * params.def (salias-max-array-elements): New parameter.
10714         * params.h (SALIAS_MAX_ARRAY_ELEMENTS): Define.
10715         * doc/invoke.texi (salias-max-array-elements): Document.
10716         * tree-flow-inline.h (var_can_have_subvars): We also handle
10717         arrays now.
10718         * tree-ssa-alias.c (find_used_portions): Handle ARRAY_REF like
10719         COMPONENT_REF.
10720         * tree-ssa-structalias.c (params.h): Include.
10721         (push_fields_onto_fieldstack): Handle ARRAY_TYPE.
10722         (find_func_aliases): Handle multiple constraints from ARRAY_REF.
10723         (get_constraint_for): For ADDR_EXPR operating on something
10724         containing an ARRAY_REF, add all subvars to the solution.
10725         (handle_ptr_arith): Handle ARRAY_TYPE like RECORD_TYPE types.
10726         * tree-ssa-operands.c (parse_ssa_operands): Handle ARRAY_REF
10727         for creating MUST_DEFs.
10728         (get_expr_operands): Treat ARRAY_REF like COMPONENT_REF wrt subvars.
10729
10730 2006-01-14  Zdenek Dvorak <dvorakz@suse.cz>
10731
10732         * tree-ssa-loop-niter.c (number_of_iterations_cond): Split into several
10733         functions.
10734         (number_of_iterations_ne, number_of_iterations_lt_to_ne,
10735         assert_no_overflow_lt, assert_loop_rolls_lt, number_of_iterations_lt,
10736         number_of_iterations_le): New functions.
10737         (number_of_iterations_special): Removed.
10738         (number_of_iterations_exit): Do not use number_of_iterations_special.
10739         * tree.c (unsigned_type_for): Always return integer type.
10740
10741 2006-01-14  Steven Bosscher  <stevenb.gcc@gmail.com>
10742         Richard Guenther  <rguenther@suse.de>
10743
10744         PR rtl-optimization/24257
10745         * gcse.c (find_moveable_store): Only consider a store movable
10746         when the SET_SRC of the insn can be assigned to a register.
10747
10748 2006-01-14  Ian Lance Taylor  <ian@airs.com>
10749
10750         * tree.c (tree_not_class_check_failed): New function.
10751         * tree.h (NON_TYPE_CHECK): Call tree_not_class_check_failed.
10752         (tree_not_class_check_failed): Declare.
10753
10754 2006-01-13  Ian Lance Taylor  <ian@airs.com>
10755
10756         * reload1.c (do_output_reload): Add assertion rejecting a
10757         CALL_INSN.
10758
10759 2006-01-13  Adam Nemet  <anemet@caviumnetworks.com>
10760
10761         * combine.c (struct reg_stat): Add new fields truncation_label and
10762         truncated_to_mode.
10763         (record_value_for_reg): Reset truncated_to_mode.
10764         (record_truncated_value): New function.
10765         (check_promoted_subreg): Call it.  Rename to check_conversions.
10766         (combine_instructions): Rename check_promoted_subreg to
10767         check_conversions.
10768         (reg_truncated_to_mode): New function.
10769         (make_extraction): Use it.  Check TRULY_NOOP_TRUNCATION.
10770         (gen_lowpart_or_truncate): New function.
10771         (force_to_mode): Use it instead of gen_lowpart.
10772
10773 2006-01-13  Diego Novillo  <dnovillo@redhat.com>
10774
10775         * tree-ssa-alias.c (add_type_alias): Fix typo.  Test whether
10776         VAR is a tag, not its type tag.
10777
10778 2006-01-13  Alexandre Oliva  <aoliva@redhat.com>
10779
10780         * config/i386/sse.md (*vec_extractv2di_1_sse2): Reorder
10781         alternatives to match style of other entries.
10782         (*vec_extractv2di_1_sse): Likewise.  Fix mode attr.
10783
10784 2006-01-13  Daniel Berlin  <dberlin@dberlin.org>
10785
10786         PR tree-optimization/25771
10787         * tree-ssa-pre.c (insert_extra_phis): Don't insert merges of abnormal
10788         SSA_NAMES.
10789
10790 2006-01-13  Andrew Pinski  <pinskia@physics.uc.edu>
10791
10792         PR tree-opt/24365
10793         * tree-inline.c (declare_return_variable): If the return variable
10794         was marked as a non gimple complex, set the return slot variable
10795         to be a non gimple comple variable.
10796
10797 2006-01-13  Richard Guenther  <rguenther@suse.de>
10798
10799         * builtins.c (expand_builtin_sincos): New function.
10800         (expand_builtin_mathfn_3): Remove dead code, sin and cos
10801         do not set errno.
10802         (expand_builtin): Expand sincos using expand_builtin_sincos.
10803
10804 2006-01-12  DJ Delorie  <dj@redhat.com>
10805
10806         * config/m32c/shift.md: Rewrite: Allow arbitrary operands for
10807         shift counts, separate SI shifts for m32c vs m16c, pass shift type
10808         so that constant shifts can be split.
10809         * config/m32c/m32c.c (m32c_const_ok_for_constraint_p): Add In6.
10810         (m32c_valid_pointer_mode): Make static.
10811         (shift_gen_func_for): New.
10812         (m32c_prepare_shift): Use it.  Split large const shifts into
10813         multiple shifts.
10814         * config/m32c/predicates.md (shiftcount_operand): Allow more
10815         general operands.
10816         (longshiftcount_operand): New.
10817         * doc/md.texi (Machine Constraints): Document In6.
10818
10819 2006-01-13  Ben Elliston  <bje@au.ibm.com>
10820
10821         * doc/tm.texi (Data Output): Add REAL_VALUE_TO_TARGET_DECIMAL32,
10822         REAL_VALUE_TO_TARGET_DECIMAL64 and REAL_VALUE_TO_TARGET_DECIMAL128
10823         documentation.
10824
10825 2006-01-12  Daniel Berlin  <dberlin@dberlin.org>
10826
10827         * tree-ssa-operands.c (add_call_clobber_ops): Use SFT_PARENT_VAR
10828         to try to avoid clobbering pieces of structures when we know
10829         something about the whole structure.
10830         * tree-ssa-alias.c (create_sft): Set SFT_PARENT_VAR
10831
10832 2006-01-13  Ben Elliston  <bje@au.ibm.com>
10833
10834         * doc/rtl.texi (Insns): Remove statement that libcalls cannot
10835         return in memory, as this is no limitation is no longer present.
10836
10837 2006-01-12  DJ Delorie  <dj@redhat.com>
10838
10839         * config/m32c/addsub.md (addhi3): Add two more alternatives, for
10840         mova with fb, and for fb+0 -> An.
10841
10842         * config/m32c/mov.md (peephole2): Fix enabling logic.
10843
10844         * config/m32c/m32c.h (CTOR_LIST_BEGIN, CTOR_LIST_END,
10845         DTOR_LIST_BEGIN, DTOR_LIST_END, CTORS_SECTION_ASM_OP,
10846         DTORS_SECTION_ASM_OP, INIT_ARRAY_SECTION_ASM_OP,
10847         FINI_ARRAY_SECTION_ASM_OP): Define.
10848
10849         * config/m32c/m32c.c (m32c_legitimize_address): Remove temporary
10850         variable.
10851         (m32c_legitimize_reload_address): New logic to reload FB to An.
10852         (m32c_output_reg_push): Add newline.
10853         (m32c_output_reg_pop): Likewise.
10854
10855 2006-01-12  Ulrich Weigand  <uweigand@de.ibm.com>
10856
10857         * struct-equiv.c (find_dying_inputs): Fix off-by-one bug.
10858
10859 2006-01-11  Andrew Pinski  <pinskia@physics.uc.edu>
10860
10861         * config/i386/darwin.h (SUBTARGET_ENCODE_SECTION_INFO): Define.
10862
10863 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
10864
10865         * config/sh/predicates.md (sh_rep_vec): Add parallel to
10866         match_code.
10867
10868 2006-01-11  Ben Elliston  <bje@au.ibm.com>
10869
10870         * rtlanal.c (find_reg_note): Assert insn is not null.
10871
10872 2006-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>
10873
10874         * df-scan.c (df_hard_reg_init): Move declaration of i outside
10875         ifdef.
10876
10877 2006-01-11  Jeff Law  <law@redhat.com>
10878
10879         * tree-ssa-threadupdate.c (threaded_edges): New VEC to
10880         hold edge pairs.
10881         (mark_threaded_blocks, register_jump_thread): New functions.
10882         (thread_through_all_blocks): Remove unwanted argument.  No
10883         longer rely on e->aux to communicate thread target info.
10884         Call mark_threaded_blocks.  Release the threaded_blocks
10885         bitmap and threaded_edges vector when complete.
10886         * tree-ssa-dom.c (struct edge_info): Remove redirection_target field.
10887         (threaded_blocks): Remove.
10888         (tree_ssa_dominator_optimize): Remove initialization and
10889         finalization of threaded_blocks.  Simplify call to
10890         thread_through_all_blocks.
10891         (thread_across_edge): Call register_jump_thread rather than
10892         storing thread information into e->aux.
10893         (free_all_edge_infos): Simplify now that e->aux is no longer
10894         used to communicate with thread_through_all_blocks.
10895         * tree-flow.h (thread_through_all_blocks): Update prototype.
10896         (register_jump_thread): Prototype.
10897
10898 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
10899
10900         * df-core.c (df_compact_blocks, df_bb_replace): Use
10901         SET_BASIC_BLOCK instead of BASIC_BLOCK.
10902
10903 2006-01-11  Richard Guenther  <rguenther@suse.de>
10904
10905         PR tree-optimization/25734
10906         * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Do not
10907         stop propagation after successful propagation to the LHS.
10908
10909 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
10910
10911         * basic-block.h (control_flow_graph): Change the type of
10912         x_basic_block_info to VEC(basic_block,gc) *.
10913         (BASIC_BLOCK_FOR_FUNCTION, BASIC_BLOCK): Adjust the uses of
10914         basic_block_info.
10915         (SET_BASIC_BLOCK): New.
10916         * cfg.c (compact_blocks, expunge_block): Use SET_BASIC_BLOCK
10917         instead of BASIC_BLOCK when assigning to BASIC_BLOCK.
10918         * cfgbuild.c (find_basic_blocks): Likewise.
10919         * cfglayout.c (fixup_reorder_chain): Likewise.
10920         * cfgrtl.c (create_basic_block_structure,
10921         rtl_create_basic_block): Likewise.
10922         * ifcvt.c (find_if_case_1): Likewise.
10923         * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb):
10924         Likewise.
10925
10926 2006-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>
10927
10928         * Makefile.in: Removed rotted odf.c entry.
10929
10930 2006-01-11  Hans-Peter Nilsson  <hp@axis.com>
10931
10932         PR target/25706
10933         * config/cris/cris.md ("*extopqihi_side", "*extop<mode>si_side")
10934         ("*extop<mode>si_swap_side_biap", "*extop<mode>si_swap_side",
10935         ("*extopqihi", "*extop<mode>si", "*extop<mode>si_swap"): Use %E
10936         output pattern modifier, not %e.
10937         * config/cris/cris.c (cris_op_str): Update comment about pattern
10938         modifier.
10939         (cris_print_operand) <case 'e'>: Clear cris_output_insn_is_bound
10940         before falling through into...
10941         <case 'E'>: Redefined from old 'e' case.
10942
10943 2006-01-11  Jan Hubicka  <jh@suse.cz>
10944
10945         PR target/25042
10946         * i386.c (ix86_init_mmx_sse_builtins): Do not delcare float128
10947
10948 2006-01-11  Jan Hubicka  <jh@suse.cz>
10949
10950         * i386.h (TARGET_DECOMPOSE_LEA): Kill.
10951         * i386.c (x86_decompose_lea): Kill.
10952         (ix86_rtx_costs): Kill.
10953
10954 2006-01-11  Jan Hubicka  <jh@suse.cz>
10955
10956         * cgraph.c (cgraph_insert_node_to_hashtable): New function.
10957         * cgraph.h (cgraph_node): Add inline_decl.
10958         (cgraph_insert_node_to_hashtable): Declare.
10959         (save_inline_function_body): Declare.
10960         * cgraphunit.c (verify_cgraph_node): Inline edges might point to inline
10961         clones.
10962         (cgraph_preserve_function_body_p): Do not presrve when dump is enabled.
10963         (cgraph_function_versioning): Update call of tree_function_versioning.
10964         (save_inline_function_body): New function.
10965         * function.h (struct function): Kill saved_eh, saved_cfg, saved_args,
10966         saved_static_chain_decl, saved_blocks and saved-unexpanded_var_list.
10967         * ipa-inline.c (cgraph_mark_inline_edge): Look for inline clones.
10968         (cgraph_default_inline_p): Likewise.
10969         (cgraph_decide_inlining_incrementally): Likewise.
10970         * tree-inline.c (inline_data): Kill saving_p add update_clones_p.
10971         (copy_bb): Kill saving; do updating of clones.
10972         (copy_cfg_body): Kill saving.
10973         (initialize_inlined-parameters): Likewise.
10974         (expand_call_inline): Likewise.
10975         (save_body): Kill.
10976         (tree_function_versioning): New parameter "update_clones".
10977         (inlining_p): Kill saving.
10978         * tree-inline.h (tree_function_versioning): Update prototype.
10979         * tree-optimize.c (tree_rest_of_compilation): Use clonning instead of
10980         saving.
10981
10982 2006-01-11  Ian Lance Taylor <ian@airs.com>
10983
10984         * combine.c (struct undo): Remove is_int.  Enumify types of undos.
10985         Allow undoing set of machine mode.
10986         (do_SUBST): Use enums instead of is_int.
10987         (do_SUBST_MODE): New function.
10988         (SUBST_MODE): New macro.
10989         (try_combine): Use SUBST_MODE/PUT_MODE instead of generating a new
10990         reg and trying to replace reg_regno_rtx with a new register.
10991         (undo_all): Use new enums, handle undoing a PUT_MODE change.
10992         (simplify_set): Use SUBST_MODE.
10993         (distribute_notes): Remove code that tried to update reg notes
10994         for regno_reg_rtx changes.
10995
10996 2006-01-11  Paolo Bonzini  <bonzini@gnu.org>
10997
10998         PR tree-optimization/23109
10999         PR tree-optimization/23948
11000         PR tree-optimization/24123
11001
11002         * Makefile.in (tree-ssa-math-opts.o): Adjust dependencies.
11003         * tree-cfg.c (single_noncomplex_succ): New.
11004         * tree-flow.h (single_noncomplex_succ): Declare it.
11005         * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
11006         * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
11007         (struct occurrence, occ_head, occ_pool, is_divide_by, compute_merit,
11008         insert_bb, register_division_in, insert_reciprocals,
11009         replace_reciprocal, free_bb): New.
11010         (execute_cse_reciprocals_1): Rewritten.
11011         (execute_cse_reciprocals): Adjust calls to execute_cse_reciprocals_1.
11012         Do not commit any edge insertion.  Always compute dominators and
11013         create the allocation pool.
11014         * target-def.h (TARGET_MIN_DIVISIONS_FOR_RECIP_MUL): New.
11015         * target.h (struct gcc_target): Add min_divistions_for_recip_mul.
11016         * targhooks.c (default_min_divistions_for_recip_mul): New.
11017         * targhooks.h (default_min_divistions_for_recip_mul): New prototype.
11018         * passes.c (init_optimization_passes): Run recip after tree loop
11019         optimizations.
11020         * doc/tm.texi (Misc): Document TARGET_MIN_DIVISIONS_FOR_RECIP_MUL.
11021
11022 2006-01-11  Danny Berlin <dberlin@dberlin.org>
11023             Kenneth Zadeck <zadeck@naturalbridge.com>
11024
11025         * df.h (DF_SCAN, DF_RU, DF_RD, DF_LR, DF_UR, DF_UREC, DF_CHAIN,
11026         DF_RI, DF_LAST_PROBLEM_PLUS1, DF_DU_CHAIN, DF_UD_CHAIN,
11027         DF_REF_TYPE_NAMES, DF_HARD_REGS, DF_EQUIV_NOTES, DF_SUBREGS,
11028         DF_SCAN_BB_INFO, DF_RU_BB_INFO, DF_RD_BB_INFO, DF_LR_BB_INFO,
11029         DF_UR_BB_INFO, DF_UREC_BB_INFO, DF_LIVE_IN, DF_LIVE_OUT,
11030         DF_RA_LIVE_IN, DF_RA_LIVE_OUT, DF_UPWARD_LIVE_IN,
11031         DF_UPWARD_LIVE_OUT, DF_REF_REAL_REG, DF_REF_REGNO,
11032         DF_REF_REAL_LOC, DF_REF_REG, DF_REF_LOC, DF_REF_BB, DF_REF_BBNO,
11033         DF_REF_INSN, DF_REF_INSN_UID, DF_REF_TYPE, DF_REF_CHAIN,
11034         DF_REF_ID, DF_REF_FLAGS, DF_REF_NEXT_REG, DF_REF_PREV_REG,
11035         DF_REF_NEXT_REF, DF_REF_DATA, DF_REF_REG_DEF_P, DF_REF_REG_USE_P,
11036         DF_REF_REG_MEM_STORE_P, DF_REF_REG_MEM_LOAD_P, DF_REF_REG_MEM_P,
11037         DF_DEFS_SIZE, DF_DEFS_GET, DF_DEFS_SET, DF_USES_SIZE, DF_USES_GET,
11038         DF_USES_SET, DF_REG_SIZE, DF_REG_DEF_GET, DF_REG_DEF_SET,
11039         DF_REG_USE_GET, DF_REG_USE_SET, DF_REGNO_FIRST_DEF,
11040         DF_REGNO_LAST_USE, DF_INSN_SIZE, DF_INSN_GET, DF_INSN_SET,
11041         DF_INSN_CONTAINS_ASM, DF_INSN_LUID, DF_INSN_DEFS, DF_INSN_USES,
11042         DF_INSN_UID_GET, DF_INSN_UID_LUID, DF_INSN_UID_DEFS,
11043         DF_INSN_UID_USES, DF_SCAN_INITIAL, DF_SCAN_GLOBAL,
11044         DF_SCAN_POST_ALLOC): New macros.
11045         (df_flow_dir, df_ref_type, df_ref_flags, df_alloc_function,
11046         df_free_bb_function, df_local_compute_function, df_init_function,
11047         df_dataflow_function, df_confluence_function_0,
11048         df_confluence_function_n, df_transfer_function,
11049         df_finalizer_function, df_free_function, df_dump_problem_function,
11050         df_problem, dataflow, df_insn_info, df_reg_info, df_ref, df_link,
11051         df_ref_info, df, df_map, df_scan_bb_info, df_ru_bb_info,
11052         df_ru_bb_info, df_rd_bb_info, df_lr_bb_info, df_ur_bb_info,
11053         df_urec_bb_info, ) New types.
11054         (df_invalidated_by_call, df_all_hard_regs, df_state) New public
11055         variables.
11056         (df_init, df_add_problem, df_set_blocks, df_finish, df_analyze,
11057         df_analyze_simple_change_some_blocks,
11058         df_analyze_simple_change_one_block, df_compact_blocks,
11059         df_bb_replace, df_bb_regno_last_use_find,
11060         df_bb_regno_first_def_find, df_bb_regno_last_def_find,
11061         df_insn_regno_def_p, df_find_def, df_find_use,
11062         df_iterative_dataflow, df_dump, df_chain_dump, df_refs_chain_dump,
11063         df_regs_chain_dump, df_insn_debug, df_insn_debug_regno,
11064         df_regno_debug, df_ref_debug, debug_df_insn, debug_df_regno,
11065         debug_df_reg, debug_df_defno, debug_df_useno, debug_df_ref,
11066         debug_df_chain, df_get_dependent_problem, df_chain_create,
11067         df_chain_unlink, df_chain_copy, df_get_live_in, df_get_live_out,
11068         df_grow_bb_info, df_chain_dump, df_print_bb_index,
11069         df_ru_add_problem, df_ru_get_bb_info, df_rd_add_problem,
11070         df_rd_get_bb_info, df_lr_add_problem, df_lr_get_bb_info,
11071         df_ur_add_problem, df_ur_get_bb_info, df_urec_add_problem,
11072         df_urec_get_bb_info, df_chain_add_problem, df_ri_add_problem,
11073         df_reg_lifetime, df_scan_get_bb_info, df_scan_add_problem,
11074         df_rescan_blocks, df_ref_create, df_get_artificial_defs,
11075         df_get_artificial_uses, df_reg_chain_create, df_reg_chain_unlink,
11076         df_ref_remove, df_insn_refs_delete, df_refs_delete,
11077         df_reorganize_refs, df_set_state, df_hard_reg_init,
11078         df_read_modify_subreg_p) New public functions.
11079         * df-core.c: The core dataflow solver and glue routines for rtl
11080         dataflow.
11081         (df_init, df_add_problem, df_set_blocks, df_finish,
11082         df_hybrid_search_forward, df_hybrid_search_backward,
11083         df_iterative_dataflow, df_prune_to_subcfg, df_analyze_problem,
11084         df_analyze, df_get_bb_info, df_set_bb_info, df_bb_replace,
11085         df_bb_regno_last_use_find, df_bb_regno_first_def_find,
11086         df_bb_regno_last_def_find, df_insn_regno_def_p, df_find_def,
11087         df_reg_defined, df_find_use, df_reg_used, df_dump,
11088         df_refs_chain_dump, df_regs_chain_dump, df_insn_debug,
11089         df_insn_debug_regno, df_regno_debug, df_ref_debug, debug_df_insn,
11090         debug_df_reg, debug_df_regno, debug_df_ref debug_df_defno,
11091         debug_df_useno, reset_df_after_reload): New functions.
11092         * df-scan.c: The scanning fuctions, once in df.c, completely
11093         rewritten so that they now fully model the functionality of
11094         register usage at the backend.
11095         (df_scan_free_internal, df_scan_get_bb_info, df_scan_set_bb_info,
11096         df_scan_free_bb_info, df_scan_alloc, df_scan_free, df_scan_dump,
11097         df_scan_add_problem, df_grow_reg_info, df_grow_ref_info,
11098         df_grow_insn_info, df_rescan_blocks, df_ref_create,
11099         df_get_artificial_defs, df_get_artificial_uses,
11100         df_reg_chain_create, df_ref_unlink, df_reg_chain_unlink,
11101         df_ref_remove, df_insn_create_insn_record, df_insn_refs_delete,
11102         df_refs_delete, df_reorganize_refs, df_set_state,
11103         df_ref_create_structure, df_ref_record, df_read_modify_subreg_p,
11104         df_def_record_1, df_defs_record, df_uses_record,
11105         df_insn_contains_asm_1, df_insn_contains_asm, df_insn_refs_record,
11106         df_has_eh_preds, df_bb_refs_record, df_refs_record, df_mark_reg,
11107         df_record_exit_block_uses, df_hard_reg_init): New functions.
11108
11109         * df-problems.c: Seven concrete dataflow problems that use the
11110         scanning in df-scan.c and are solved by the engine in df-core.c.
11111         (df_get_dependent_problem, df_chain_create, df_chain_unlink,
11112         df_chain_copy, df_get_live_in, df_get_live_out, df_grow_bb_info,
11113         df_chain_dump, df_print_bb_index, df_ref_bitmap, df_set_seen,
11114         df_unset_seen, df_ru_get_bb_info, df_ru_set_bb_info,
11115         df_ru_free_bb_info, df_ru_alloc,
11116         df_ru_bb_local_compute_process_def,
11117         df_ru_bb_local_compute_process_use, df_ru_bb_local_compute,
11118         df_ru_local_compute, df_ru_init_solution, df_ru_confluence_n,
11119         df_ru_transfer_function, df_ru_free, df_ru_dump,
11120         df_ru_add_problem, df_rd_get_bb_info, df_rd_set_bb_info,
11121         df_rd_free_bb_info, df_rd_alloc,
11122         df_rd_bb_local_compute_process_def, df_rd_bb_local_compute,
11123         df_rd_local_compute, df_rd_init_solution, df_rd_confluence_n,
11124         df_rd_transfer_function, df_rd_free, df_rd_dump,
11125         df_rd_add_problem, df_lr_get_bb_info, df_lr_set_bb_info,
11126         df_lr_free_bb_info, df_lr_alloc, df_lr_bb_local_compute,
11127         df_lr_local_compute, df_lr_init, df_lr_confluence_0,
11128         df_lr_confluence_n, df_lr_transfer_function, df_lr_free,
11129         df_lr_dump, df_lr_add_problem, df_ur_get_bb_info,
11130         df_ur_set_bb_info, df_ur_free_bb_info, df_ur_alloc,
11131         df_ur_bb_local_compute, df_ur_local_compute, df_ur_init,
11132         df_ur_local_finalize, df_ur_confluence_n, df_ur_transfer_function,
11133         df_ur_free, df_ur_dump, df_ur_add_problem, df_urec_get_bb_info,
11134         df_urec_set_bb_info, df_urec_free_bb_info, df_urec_alloc,
11135         df_urec_mark_reg_change, df_urec_check_earlyclobber,
11136         df_urec_mark_reg_use_for_earlyclobber,
11137         df_urec_mark_reg_use_for_earlyclobber_1, df_urec_bb_local_compute,
11138         df_urec_local_compute, df_urec_init, df_urec_local_finalize,
11139         df_urec_confluence_n, df_urec_transfer_function, df_urec_free,
11140         df_urec_dump, df_urec_add_problem, df_chain_alloc,
11141         df_chain_create_bb_process_use, df_chain_create_bb,
11142         df_chain_finalize, df_chain_free, df_chains_dump,
11143         df_chain_add_problem, df_ri_alloc, df_ri_bb_compute,
11144         df_ri_compute, df_ri_free, df_ri_dump, df_ri_add_problem,
11145         df_reg_lifetime): New functions.
11146         * df.c: Deleted file.
11147         * ddg.c (create_ddg_dep_no_link, build_inter_loop_deps): Made code
11148         consistent with new df api.
11149         * modulo-sched.c (sms_schedule, rest_of_handle_sms,
11150         rest_of_handle_sms): Ditto.
11151         * web.c (unionfind_union, union_defs, entry_register, web_main):
11152         Ditto.
11153         * loop_invariant.c (invariant_for_use, hash_invariant_expr_1,
11154         invariant_expr_equal_p, find_defs, check_dependencies,
11155         find_invariant_insn, find_invariants_to_move, move_invariant_reg,
11156         free_inv_motion_data, move_loop_invariants): Ditto.
11157         * Makefile.in (df.c, df-scan.c df-problems.c df-core.c):
11158         Update dependencies.
11159         (odf.c): Added defective entry that was deleted later in day.
11160         * sched-deps.c (sched_analyze_1): Ditto.
11161
11162 2006-01-11  Zdenek Dvorak <dvorakz@suse.cz>
11163
11164         * tree-ssa-operands.c (get_expr_operands): Record addressable
11165         variables directly.  Do not call add_stmt_operands for CONST_DECLs
11166         and ARRAY_DECLs.
11167         (get_indirect_ref_operands): Remove handling of *(&a + offset) case.
11168         (add_stmt_operands): Handle only objects satisfying SSA_VAR_P.
11169
11170 2006-01-11  Ben Elliston  <bje@au.ibm.com>
11171
11172         * config/i386/i386.c (ix86_return_in_memory): Fix comment: this
11173         function returns true in the positive case.
11174
11175 2006-01-10  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
11176
11177         PR target/20754
11178         * config/pa/pa.md: Create separate 32 and 64-bit move patterns
11179         for SI, DI, SF and DF modes.  Add alternatives to copy between
11180         general and floating point registers to the 32-bit patterns.
11181         * config/pa/pa-64.h (SECONDARY_MEMORY_NEEDED_RTX): Delete undefine.
11182         * config/pa/pa.h (SECONDARY_MEMORY_NEEDED_RTX): Delete define.
11183         (SECONDARY_MEMORY_NEEDED): Secondary memory is only needed when
11184         generating 64-bit code.
11185         * config/pa/pa.c (output_move_double): Handle copies between general
11186         and floating registers.
11187
11188 2006-01-10  Stuart Hastings  <stuart@apple.com>
11189
11190         * config/i386/i386.md (set_got): Update.
11191         (set_got_labelled): New.  (UNSPEC_LD_MPIC): New.
11192         (builtin_setjmp_receiver): Mach-O support.
11193         * config/i386/darwin.h (TARGET_ASM_FILE_END) Define.
11194         (GOT_SYMBOL_NAME): Define.
11195         (FORCE_PREFERRED_STACK_BOUNDARY_IN_MAIN): New.
11196         (TARGET_DEEP_BRANCH_PREDICTION): Remove.
11197         * config/i386/i386.c (override_options): Revise for Darwin.
11198         (USE_HIDDEN_LINKONCE): Enable for Mach-O.  (ix86_file_end): Mach-O
11199         support.  (darwin_x86_file_end): New.  (output_set_got): Add label
11200         parameter, revise for Mach-O.  (x86_output_mi_thunk): Likewise.
11201         * config/i386/i386-protos.h (output_set_got): Likewise.
11202         * config/darwin.c (machopic_legitimize_pic_address): Update
11203         regs_ever_live[].
11204
11205 2006-01-10  Kaz Kojima  <kkojima@gcc.gnu.org>
11206
11207         * config/sh/sh.h (SH5_WOULD_BE_PARTIAL_NREGS): Use GET_MODE_SIZE
11208         when MODE isn't BLKmode.
11209
11210 2006-01-10  Eric Botcazou  <ebotcazou@libertysurf.fr>
11211
11212         PR rtl-optimization/25367
11213         * config/sparc/sparc.h (HARD_REGNO_RENAME_OK): New macro.
11214
11215 2006-01-10  Hans-Peter Nilsson  <hp@axis.com>
11216
11217         PR target/25718
11218         * config/cris/cris.md ("uminsi3"): Don't use 8- or 16-bit sizes
11219         for a negative bound.
11220
11221 2006-01-10  Richard Guenther  <rguenther@suse.de>
11222
11223         * tree-ssa-structalias.c (get_constraint_for_component_ref):
11224         Never override with anything constraint.
11225
11226 2006-01-10  Jan Beulich  <jbeulich@novell.com>
11227
11228         * config/i386/i386.c (ix86_data_alignment): Don't force alignment to
11229         256 bits when optimize_size.
11230
11231 2006-01-10  Jan Beulich  <jbeulich@novell.com>
11232
11233         * config/i386/netware.h (TARGET_SUBTARGET_DEFAULT): Include
11234         MASK_ALIGN_DOUBLE.
11235         * config/i386/nwld.h (LINK_SPEC): Add --extensions:GNU option.
11236         * config/i386/t-nwld (SHLIB_LINK): Insert spaces between expr
11237         arguments.
11238
11239 2006-01-10  Ben Elliston  <bje@au.ibm.com>
11240
11241         * config/rs6000/predicates.md (easy_fp_constant): Discount decimal
11242         float modes.
11243         * config/rs6000/rs6000.c (rs6000_scalar_mode_supported_p): New.
11244         (TARGET_SCALAR_MODE_SUPPORTED_P): Define.
11245         (USE_FP_FOR_ARG): Reject decimal float modes.
11246         (function_arg_advance): Likewise.
11247         (output_toc): Handle emitting TDmode, DDmode and SDmode constants.
11248         (rs6000_handle_altivec_attribute): Do not permit decimal floating
11249         point types in AltiVec vectors.
11250         (rs6000_function_value): Use GP_ARG_RETURN for decimal floats.
11251         (rs6000_libcall_value): Likewise.
11252
11253 2006-01-09  Bob Wilson  <bob.wilson@acm.org>
11254
11255         * config/xtensa/ieee754-df.S: New file.
11256         * config/xtensa/ieee754-sf.S: New file.
11257         * config/xtensa/t-xtensa (LIB2FUNCS_EXTRA): Remove fp-bit.c & dp-bit.c.
11258         (LIB1ASMFUNCS): Add SFmode and DFmode floating-point functions.
11259         * config/xtensa/lib1funcs.asm: Include ieee754-df.S and ieee754-sf.S.
11260
11261 2006-01-09  Kazu Hirata  <kazu@codesourcery.com>
11262
11263         * config/sh/predicates.md (binary_float_operator,
11264         binary_logical_operator, commutative_float_operator,
11265         equality_comparison_operator, greater_comparison_operator,
11266         less_comparison_operator, logical_operator,
11267         noncommutative_float_operator, shift_operator,
11268         symbol_ref_operand, unary_float_operator): Remove redundant
11269         conditionals.
11270
11271 2006-01-09  Jeff Law  <law@redhat.com>
11272
11273         * tree-ssa-dom.c (simplify_cond_and_lookup_avail_expr): Remove
11274         code to propagate the RHS of a cast into COND_EXPR_COND.  Remove
11275         now unused arguments.  Callers updated.
11276         (eliminate_redundant_computations): Remove now unused arguments,
11277         callers updated.
11278         (local_fold): Remove, no longer used.
11279         (find_equivalent_equality_comparison): Removed from tree-ssa-dom.c
11280         and moved to...
11281         * tree-ssa-forwprop.c (find_equivalent_equality_comparison): Here.
11282         (simplify_cond): New function.
11283         (forward_propagate_into_cond): Call simplify_cond.
11284
11285 2006-01-09  Alexandre Oliva  <aoliva@redhat.com>
11286
11287         * config/i386/sse.md (*vec_extractv2di_1_sse2): New.
11288         (*vec_extractv2di_1_sse): New.
11289
11290 2006-01-09  Ben Elliston  <bje@au.ibm.com>
11291
11292         * config/rs6000/rs6000.h (GO_IF_LEGITIMATE_ADDRESS): Typo fix.
11293
11294 2006-01-08  Richard Guenther  <rguenther@suse.de>
11295
11296         * tree-ssa-structalias.c (get_constraint_for): Remove
11297         anyoffset argument.
11298         (get_constraint_for_component_ref): Likewise.
11299         (do_deref): Likewise.
11300         (get_constraint_for): Likewise.
11301         (do_structure_copy): Likewise.
11302         (handle_ptr_arith): Likewise.
11303         (find_func_aliases): Likewise.  Remove unused need_anyoffset
11304         variable.
11305
11306 2006-01-08  J"orn Rennecke  <joern.rennecke@st.com>
11307             Kaz Kojima  <kkojima@gcc.gnu.org>
11308
11309         * config/sh/sh.h (CONST_OK_FOR_K16): Define.
11310         (CONST_OK_FOR_K): Add CONST_OK_FOR_K16 case.
11311         (EXTRA_CONSTRAINT_C16): Remove.
11312         (EXTRA_CONSTRAINT_Css, EXTRA_CONSTRAINT_Csu): Define.
11313         (EXTRA_CONSTRAINT_C): Remove EXTRA_CONSTRAINT_C16 case and add
11314         EXTRA_CONSTRAINT_Css and EXTRA_CONSTRAINT_Csu cases.
11315         * config/sh/sh.c (print_operand): Handle unsigned 16-bit symbolic
11316         constants of SHmedia.  Handle nested constant expressions of
11317         SHmedia correctly.
11318         (andcosts): Fix the costs for SHmedia constants.
11319         (sh_rtx_costs): Take account of outer_code for SHmedia constants.
11320         * config/sh/sh.md (*movsi_media): Use Css constraint instead of C16.
11321         (*movsi_media_nofpu, *movqi_media, *movhi_media): Likewise.
11322         (*movdi_media, *movdi_media_nofpu, movv8qi_i, movv2hi_i): Likewise.
11323         (movv4hi_i, movv2si_i): Likewise.
11324         (movsi_const): Adjust the second operand of ior so to match with
11325         the Csu constraint.
11326         (movdi_const, movdi_const_32bit): Likewise.
11327         (movdi_const_16bit+1): Don't sign-extend LOW.
11328         (movdi_const_16bit+2): Likewise.  Remove the zero_extend and truncate
11329         step.
11330         (*double_shori): Fix the split condition.  Use GEN_INT instead
11331         of get_int_mode calls.  Mask lower 16-bit of the argument of
11332         the last GEN_INT.
11333         (sym2GOTPLT): Remove.
11334         (symGOTPLT2reg): Replace gen_sym2GOTPLT with gen_rtx_CONST and
11335         gen_rtx_UNSPEC.
11336         * config/sh/predicates.md (arith_operand): Use EXTRA_CONSTRAINT_Css
11337         instead of EXTRA_CONSTRAINT_C16.
11338
11339 2006-01-07  Ian Lance Taylor  <ian@airs.com>
11340             David Edelsohn  <edelsohn@gnu.org>
11341
11342         PR rtl-optimization/25662
11343         * optabs.c (simplify_expand_binop): Use simplify_binary_operation
11344         for constant operands instead of simplify_gen_binary.
11345         * simplify-rtx.c (simplify_gen_binary): Swap commutative operands
11346         after trying simplify_binary_operation
11347
11348 2006-01-06  Daniel Berlin  <dberlin@dberlin.org>
11349
11350         * tree.c (iterative_hash_expr): Hash decls based on UID.
11351
11352 2006-01-06  Eric Christopher  <echristo@apple.com>
11353
11354         * doc/tm.texi (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): Document.
11355         (TARGET_UNWIND_EMIT): Fix spelling.
11356         * target.h (gcc_target): Add except_table_label.
11357         * except.c (output_function_exception_table): Use.
11358         * varasm.c (default_emit_except_table_label): New.
11359         * target-def.h (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): New default
11360         define.
11361         (asm_out): Add here.
11362         * output.h (default_emit_except_table_label): Prototype.
11363         * config/darwin-protos.h (darwin_emit_except_table_label): Ditto.
11364         * config/darwin.c (darwin_emit_except_table_label): Define.
11365         * config/darwin.h (TARGET_ASM_EMIT_EXCEPT_TABLE): Ditto.
11366
11367 2006-01-06  Zdenek Dvorak <dvorakz@suse.cz>
11368
11369         PR tree-optimization/18527
11370         * tree-ssa-loop-niter.c (number_of_iterations_cond,
11371         number_of_iterations_special, number_of_iterations_exit):
11372         Move base and step of an iv to a single structure.  Add
11373         no_overflow flag, and use it in # of iterations analysis.
11374         * tree-scalar-evolution.c (analyze_scalar_evolution_in_loop): Add
11375         folded_casts argument.
11376         (simple_iv): Pass base and step in a structure.  Set no_overflow
11377         flag.
11378         (scev_const_prop): Add argument to analyze_scalar_evolution_in_loop.
11379         Evaluate expensiveness of computing # of iterations instead of
11380         the final expression.
11381         * tree-scalar-evolution.h (affine_iv): New structure.
11382         (simple_iv): Declaration changed.
11383         * tree-chrec.c (chrec_apply): Handle chrecs containing symbols.
11384         * tree-ssa-loop-ivopts.c (determine_biv_step, find_givs_in_stmt_scev,
11385         find_givs_in_stmt): Changed due to simple_iv change.
11386
11387 2006-01-06  Jeff Law  <law@redhat.com>
11388
11389         PR ada/24994
11390         * tree-cfg.c (bsi_replace): Rename final argument from
11391         PRESERVE_EH_INFO to UPDATE_EH_INFO.  Fix typo in last
11392         change (stmt -> orig_stmt).
11393         * tree-eh.c (verify_eh_throw_stmt_node): New function.
11394         (bsi_remove): Add new argument.  Remove EH information
11395         if requested.
11396         (verify_eh_throw_table_statements): New function.
11397         (bsi_remove): Add new argument REMOVE_EH_INFO.  All callers
11398         updated.
11399         * tree-optimize.c (execute_free_cfg_annotations): Verify
11400         the EH throw statement table after removing annotations.
11401         * except.h (verify_eh_throw_table_statements): Prototype.
11402         * tree-flow.h (bsi_remove): Update prototype.
11403         * tree-vrp.c (remove_range_assertions): Add new argument to
11404         bsi_remove call.
11405         * tree-ssa-loop-im.c (move_computations_stmt): Likewise.
11406         * tree-complex.c (expand_complex_div_wide): Likewise.
11407         * tree-ssa-threadupdate.c (remove_ctrl_stmt_and_useless_edges): Likewise
11408         * tree-tailcall.c (eliminate_tailcall): Likewise.
11409         * tree-ssa-dse.c (dse_optimize_stmt): Likewise.
11410         * tree-ssa-loop-ivopts.c (remove_statement): Likewise.
11411         * tree-nrv.c (tree_nrv): Likewise.
11412         * tree-vectorizer.c (slpeel_make_loop_iterate_ntimes): Likewise.
11413         * tree-if-conv.c (tree_if_convert_cond_expr): Likewise.
11414         (combine_blocks): Likewise.
11415         * tree-ssa-phiopt.c (replace_phi_edge_with_variable): Likewise.
11416         * tree-cfgcleanup.c (cleanup_ctrl_expr_graph): Likewise.
11417         (cleanup_control_flow): Likewise.
11418         (remove_forwarder_block): Likewise.
11419         * tree-ssa-pre.c (remove_dead_inserted_code): Likewise.
11420         * tree-sra.c (sra_replace): Likewise.
11421         * tree-ssa-forwprop.c (forward_propagate_into_cond): Likewise.
11422         (forward_propagate_single_use_vars): Likewise.
11423         * tree-ssa-dce.c (remove_dead_stmt): Likewise.
11424         * tree-inline.c (expand_call_inline): Likewise.
11425         * tree-vect-transform.c (vect_transform_loop): Likewise.
11426         * tree-outof-ssa.c (rewrite_trees): Likewise.
11427         * tree-cfg.c (make_goto_expr_edges): Likewise.
11428         (cleanup_dead_labels): Likewise.
11429         (tree_merge_blocks, remove_bb, disband_implicit_edges): Likewise.
11430         (bsi_move_before, bsi_move_after): Likewise.
11431         (bsi_move_to_bb_end, try_redirect_by_replacing_jump): Likewise
11432         (tree_redirect_edge_and_branch, tree_split_block): Likewise.
11433
11434 2006-01-06  Andrew Pinski  <pinskia@physics.uc.edu>
11435
11436         PR tree-opt/25528
11437         * tree-ssa-alias.c (find_used_portions): Handle REALPART_EXPR
11438         and IMAGPART_EXPR.
11439         * tree-flow-inline.h (var_can_have_subvars): Handle complex types
11440         on non gimple variables.  Also add checks at the top for decls and
11441         mtags.
11442         * tree-ssa-structalias.c (push_fields_onto_fieldstack): Handle
11443         complex types.
11444         * tree-ssa-operands.c (parse_ssa_operands): Handle REALPART_EXPR
11445         and IMAGPART_EXPR for creating MUST_DEFs.
11446         (get_expr_operands): Handle SSA_NAME, STRUCT_FIELD_TAG, TYPE_MEMORY_TAG,
11447         and NAME_MEMORY_TAG separately from the DECLs.
11448
11449 2006-01-06  Richard Guenther  <rguenther@suse.de>
11450
11451         * tree-dfa.c (mark_new_vars_to_rename): Create stmt
11452         annotation, if necessary.
11453         * tree-ssa-pre.c (create_expression_by_pieces): Remove
11454         redundant calls to update_stmt.
11455         * tree-ssa-forwprop.c (tidy_after_forward_propagate_addr):
11456         Likewise.
11457
11458 2006-01-05  Richard Henderson  <rth@redhat.com>
11459
11460         * c-parser.c (c_parser_objc_methodprotolist): Handle CPP_PRAGMA.
11461
11462 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
11463
11464         * c-typeck.c: Update copyright date.
11465
11466 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
11467
11468         * c-typeck.c (build_c_cast): Always warn when casting
11469         from a pointer to an integer of different size, even if
11470         the node was constant.
11471
11472 2006-01-05  Richard Guenther  <rguenther@suse.de>
11473
11474         PR tree-optimization/22555
11475         * tree-ssa-alias.c (create_overlap_variables_for): Do not give up,
11476         if one structure field is an array.
11477         * tree-ssa-operands.c (get_expr_operands): Continue scanning
11478         operands even if we found a subvar, but ignore VOPs in this
11479         case.
11480         * tree-ssa-loop-ivopts.c (rewrite_use): Mark new vars in stmt
11481         for renaming.
11482         * tree-ssa-loop.c (pass_iv_optimize): Schedule TODO_update_ssa.
11483
11484 2006-01-05  Richard Earnshaw  <rearnsha@arm.com>
11485
11486         PR middle-end/24998
11487         * arm/t-netbsd (LIB2FUNCS_EXTRA): Define.
11488
11489 2006-01-05  Richard Guenther  <rguenther@suse.de>
11490             Diego Novillo  <dnovillo@redhat.com>
11491
11492         * tree-pass.h (TODO_remove_unused_locals): Define.
11493         * gimple-low.c (expand_var_p, remove_useless_vars,
11494         pass_remove_useless_vars): Remove.  Update all users.
11495         * tree-ssa-live.c (mark_all_vars_used_1): Handle SSA names.
11496         (remove_unused_locals): New function.
11497         * tree-flow.h (remove_unused_locals): Declare.
11498         * passes.c (execute_todo): Call remove_unused_locals if
11499         TODO_remove_unused_locals is set.
11500         * tree-into-ssa.c (pass_build_ssa): Add TODO_remove_unused_locals.
11501         * tree-ssa-dce.c (pass_dce): Likewise.
11502         * tree-outof-ssa.c (pass_del_ssa): Likewise.
11503
11504 2006-01-05  Richard Guenther  <rguenther@suse.de>
11505
11506         * tree-flow.h (struct fieldoff): Decompose field to
11507         type, size and decl.
11508         * tree-ssa-alias.c (create_sft): Take type as parameter.
11509         (create_overlap_variables_for): Store type, size and decl
11510         in the fieldoff structure.
11511         * tree-ssa-structalias.c (fieldoff_compare): Adjust users
11512         of struct fieldoff.
11513         (push_fields_onto_fieldstack): Likewise.
11514         (create_variable_info_for): Likewise.  Use offset for the
11515         SFT name if the decl is not available.
11516
11517 2006-01-04  Paul Brook  <paul@codesourcery.com>
11518
11519         * config/m68k/m68k.c (m68k_output_mi_thunk): Use jmp, not jsr.
11520
11521 2006-01-04  Daniel Berlin  <dberlin@dberlin.org>
11522
11523         * lambda-code.c (can_put_in_inner_loop): Relax
11524         restrictions.
11525         (can_put_after_inner_loop): New function.
11526         (can_convert_to_perfect_nest): Use can_put_after_inner_loop as well.
11527         (perfect_nestify): Change to make copies and modify uses.
11528
11529 2006-01-04  Richard Henderson  <rth@redhat.com>
11530
11531         Merge from gomp branch:
11532         * c-lex.c (c_lex_with_flags) <CPP_PRAGMA>: Smuggle pragma id
11533         via integer constant.
11534         (pragma_lex): Remove.
11535         * c-pch.c (c_common_pch_pragma): Accept the name as an argument,
11536         rather than parsing it.
11537         * c-pragma.c (handle_pragma_weak, handle_pragma_redefine_extname,
11538         handle_pragma_extern_prefix): Add %< %> quotes.
11539         (registered_pragmas): New.
11540         (c_register_pragma_1): New.
11541         (c_register_pragma): Use it.
11542         (c_register_pragma_with_expansion): Likewise.
11543         (c_invoke_pragma_handler): New.
11544         (init_pragma): Use cpp_register_deferred_pragma directly for
11545         pch_preprocess.
11546         * c-pragma.h (enum pragma_kind): New.
11547         (pragma_handler): New.
11548         (c_invoke_pragma_handler): Declare.
11549         * c-common.c (c_parse_error): Pretty print CPP_PRAGMA and
11550         CPP_PRAGMA_EOL.
11551         * c-common.h (c_common_pch_pragma): Update decl.
11552         * Makefile.in (c-parser.o): Update dependencies.
11553         (GTFILES): Add c-pragma.h.
11554         * c-parser.c (struct c_token): Add pragma_kind.
11555         (struct c_parser): Add in_pragma.
11556         (c_lex_one_token): Always initialize keyword and pragma_kind.
11557         Extract data for CPP_PRAGMA.
11558         (c_parser_peek_2nd_token): Deny CPP_PRAGMA_EOL.
11559         (c_parser_consume_token): Don't allow CPP_PRAGMA unless errors.
11560         Don't allow CPP_PRAGMA_EOL if in_pragma.
11561         (c_parser_consume_pragma): New.
11562         (c_parser_skip_until_found): Stop on CPP_PRAGMA_EOL.
11563         (c_parser_skip_to_end_of_parameter): Likewise.
11564         (c_parser_skip_to_end_of_block_or_statement): Likewise.
11565         (c_parser_skip_to_pragma_eol): New.
11566         (c_parser_external_declaration): Handle CPP_PRAGMA.
11567         (c_parser_compound_statement_nostart): Likewise.
11568         (c_parser_statement_after_labels): Likewise.
11569         (c_parser_pragma): New.
11570         (pragma_lex): Likewise.
11571         (c_parser_pragma_pch_preprocess): New.
11572         (c_parser_new): Merge into ...
11573         (c_parse_file): ... here.  Call c_parser_pragma_pch_preprocess.
11574
11575 2006-01-04  Jeff Law  <law@redhat.com>
11576
11577         PR ada/24994
11578         * tree-cfg.c (bsi_replace): Remove the original statement
11579         from the EH throw statement table.
11580
11581 2006-01-04  Jakub Jelinek  <jakub@redhat.com>
11582
11583         * config/i386/pmm_malloc.h (posix_memalign): If __cplusplus,
11584         make the prototype extern "C" and add throw ().
11585
11586         PR target/25554
11587         * config/i386/i386.md (testqi_ext_3): Ensure len is positive
11588         and pos non-negative and pos + len <= 32.
11589         (testqi_ext_3_rex64): Ensure len is positive and pos non-negative,
11590         drop pos + len < HOST_BITS_PER_WIDE_INT test.
11591         (testqi_ext_3* splitter): Handle pos + len == HOST_BITS_PER_WIDE_INT.
11592
11593         PR c/25559
11594         * c-common.c (handle_vector_size_attribute): Reject zero vector size
11595         as well as sizes not multiple of component size.
11596
11597         PR debug/25562
11598         * function.c (instantiate_expr): New function.
11599         (instantiate_decls_1, instantiate_decls): If DECL_HAS_VALUE_EXPR_P,
11600         walk its DECL_VALUE_EXPR with instantiate_expr.
11601
11602         * dwarf2out.c (loc_descriptor_from_tree_1): Don't add
11603         DW_OP_deref{,_size} if address isn't going to be added.
11604
11605 2006-01-04  Ben Elliston  <bje@au.ibm.com>
11606
11607         * config/fp-bit.h: Use top-of-file comment from libgcc2.c.
11608         * config/fp-bit.c: Likewise.
11609
11610 2006-01-03  Daniel Berlin  <dberlin@dberlin.org>
11611
11612         * dominance.c: Add comment about why we use DFS numbering
11613         of dominance tree.
11614
11615 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
11616             Richard Henderson  <rth@redhat.com>
11617
11618         Merge from gomp-branch:
11619         * varasm.c (assemble_variable): Handle thread-local COMMON data.
11620         * defaults.h (ASM_OUTPUT_TLS_COMMON): Define.
11621
11622 2006-01-03  Paolo Bonzini  <bonzini@gnu.org>
11623
11624         PR rtl-optimization/25578
11625         * combine.c (combine_simplify_rtx, force_to_mode): Don't
11626         pass a parameter to simplify_shift_const if changing ASHIFTRT
11627         to LSHIFTRT.
11628
11629 2006-01-03  Adrian Straetling  <straetling@de.ibm.com>
11630
11631         * builtins.c (get_builtin_sync_mem): New function.
11632         (expand_builtin_sync_operation, expand_builtin_compare_and_swap,
11633         expand_builtin_lock_test_and_set, expand_builtin_lock_release):
11634         Call get_builtin_sync_mem to generate mem rtx.
11635
11636 2006-01-03  Richard Guenther  <rguenther@suse.de>
11637
11638         PR c/25183
11639         * stmt.c (add_case_node): Make sure to clear overflow flags
11640         from ranges.
11641
11642 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
11643
11644         Merge from gomp-branch.
11645         * config/sparc/sync.md: New file.
11646         * config/sparc/sparc.md (UNSPECV_MEMBAR, UNSPECV_CAS, UNSPECV_SWAP,
11647         UNSPECV_LDSTUB): New constants.
11648         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): New function.
11649         * config/sparc/predicates.md (memory_reg_operand): New predicate.
11650         * config/sparc/sparc-protos.h (sparc_expand_compare_and_swap_12): New
11651         prototype.
11652
11653 2006-01-03  Roger Sayle  <roger@eyesopen.com>
11654
11655         * combine.c (reg_subword_p): New predicate to test whether the
11656         destination of a set refers to a subword/piece of a register.
11657         (try_combine): Generalize the code to merge the setting of a
11658         pseudo to a constant followed by a set of a subword of that
11659         register to a constant.
11660
11661 2006-01-03  Kazu Hirata  <kazu@codesourcery.com>
11662
11663         * basic-block.h (control_flow_graph): Change the type of
11664         x_label_to_block_map to VEC(basic_block,gc) *.
11665         * tree-cfg.c (init_empty_tree_cfg, label_to_block_fn,
11666         set_bb_for_stmt): Adjust the uses of x_label_to_block_map.
11667
11668         * tree-ssa-propagate.c (cfg_blocks): Change the type to
11669         VEC(basic_block,heap) *.
11670         (cfg_blocks_add, cfg_blocks_get, ssa_prop_init,
11671         ssa_prop_fini): Adjust the uses of cfg_blocks.
11672
11673 2006-01-03  Steven Bosscher  <stevenb.gcc@gmail.com>
11674
11675         * fold-const.c (operand_equal_p): Accept a NULL operand 0 for
11676         COMPONENT_REFs.
11677         * emit-rtl.c (mem_attrs_htab_eq): Use iterative_hash_expr for
11678         hashing trees instead of a pointer hash.
11679         (mem_attrs_htab_eq): Do a deep compare instead of a pointer
11680         compare for MEM_EXPR.
11681
11682         PR rtl-optimization/25130
11683         * cse.c (exp_equiv_p): Compare MEM_ATTRS instead of MEM_ALIAS_SET
11684         when comparing MEMs for GCSE
11685
11686 2006-01-03  Ben Elliston  <bje@au.ibm.com>
11687
11688         * targhooks.h (default_decimal_float_supported_p): Declare.
11689         * targhooks.c (default_decimal_float_supported_p): Define.
11690         * target-def.h (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Redefine to
11691         `default_decimal_float_supported_p'.
11692         * doc/tm.texi (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Update.
11693
11694 2006-01-02  Adam Nemet  <anemet@caviumnetworks.com>
11695
11696         * combine.c (apply_distributive_law <SUBREG>): Check
11697         TRULY_NOOP_TRUNCATION.
11698
11699 2006-01-02  Geoffrey Keating  <geoffk@apple.com>
11700
11701         * dwarf2out.c (have_switched_text_section): Delete.
11702         (have_multiple_function_sections): New.
11703         (have_location_lists): Make 'bool'.
11704         (add_AT_loc_list): Use 'true' not '1'.
11705         (dwarf2out_switch_text_section): Set have_multiple_function_sections.
11706         (output_loc_list): Use have_multiple_function_sections.
11707         (output_ranges): Likewise.
11708         (dwarf2out_begin_function): Set have_multiple_function_sections if
11709         necessary.
11710         (dwarf2out_source_line): Don't fake separate_line_info_table_in_use.
11711         Check function_section rather than DECL_SECTION_NAME.
11712         (dwarf2out_finish): Use have_multiple_function_sections.
11713         Don't clear have_location_lists.
11714
11715 2006-01-02  Eric Botcazou  <ebotcazou@adacore.com>
11716             Jan Hubicka  <jh@suse.cz>
11717
11718         * cfglayout.c (fixup_reorder_chain): Remove kludge for the
11719         case of conditional jump jumping to the next instruction.
11720         * cfgrtl.c (force_nonfallthru_and_redirect): Accept all
11721         cases of conditional jump jumping to the next instruction.
11722
11723 2006-01-02  Jan Hubicka  <jh@suse.cz>
11724
11725         * i386.c (*_cost): Add COSTS_N_INSNS.
11726         (ix86_rtx_costs): Do not use COSTS_N_INSNS.
11727
11728 2006-01-02  Paolo Bonzini  <bonzini@gnu.org>
11729
11730         PR target/25259
11731         * Makefile.in (DECNUMINC): Include libdecnumber's build directory.
11732
11733 2006-01-02  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
11734
11735         * config/arm/arm.c (all_fpus): Fix comment typo.
11736         * config/darwin.c: Likewise.
11737         * config/frv/frv.h (FRV_STRUCT_VALUE_REGNUM): Likewise.
11738         * config/h8300/h8300.md (extendqisi2_h8300hs): Likewise.
11739         * config/m68hc11/m68hc11.c (m68hc11_reload_operands): Likewise.
11740
11741 2006-01-01  David Edelsohn  <edelsohn@gnu.org>
11742
11743         * config/rs6000/rs6000.c (rs6000_expand_compare_and_swapqhi): New.
11744         (rs6000_split_compare_and_swapqhi): New.
11745         * config/rs6000/sync.md (sync_compare_and_swap{hi,qi}): New.
11746         (sync_compare_and_swapqhi_internal): New.
11747         * config/rs6000/rs6000-protos.h: Declare.