gcc/ChangeLog

   1 2005-10-20  Geoffrey Keating  <geoffk@apple.com>
   2
   3         * doc/cpp.texi (Character sets): Document that we do support
   4         input files to be in any character set.
   5
   6 2006-02-23  Jeff Law  <law@redhat.com>
   7
   8         * tree.h (PHI_ARG_NONZERO): Remove.
   9         * tree-phinodes.c (add_phi_arg): No longer initialize PHI_ARG_NONZERO.
  10         (remove_phi_arg_num): No longer copy PHI_ARG_NONZERO from the old
  11         node to the new node.
  12
  13         PR tree-optimization/26425
  14         * tree-vrp.c (vrp_visit_assignment): If the LHS's type has a NULL
  15         min/max, then assume its varying.
  16
  17 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
  18
  19         PR rtl-optimization/26316
  20         * rtlanal.c (enum may_trap_p_flags): New.
  21         (may_trap_p_1): Take flags instead of unaligned_mems argument.  Ignore
  22         MEM_NOTRAP_P if flags & MTP_AFTER_MOVE.
  23         (may_trap_p, may_trap_or_fault_p): Pass flags to may_trap_p_1.
  24         (may_trap_after_code_motion_p): New function.
  25         * loop-invariant.c (find_identical_invariants): Fix dump formating.
  26         (find_invariant_insn): Use may_trap_after_code_motion_p.
  27         * rtl.h (may_trap_after_code_motion_p): Declare.
  28
  29 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
  30
  31         * emit-rtl.c (immed_double_const): Cleanup.
  32
  33 2006-02-23  Daniel Berlin  <dberlin@dberlin.org>
  34
  35         Fix PR tree-optimization/26376
  36         * tree-ssa-structalias.c (find_func_aliases):  Use get_id_for_tree,
  37         remove assert.
  38
  39 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
  40
  41         PR middle-end/26412
  42         * gimplify.c (omp_add_variable): Guard variable size decl test with
  43         DECL_SIZE (decl) check.
  44
  45 2006-02-23  Richard Guenther  <rguenther@suse.de>
  46
  47         PR middle-end/26439
  48         * tree-ssa-structalias.c (find_func_aliases): Handle complex types
  49         like aggregate types.
  50
  51 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
  52
  53         * configure.ac: Add --with{,out}-long-double-128 configure option.
  54         (TARGET_DEFAULT_LONG_DOUBLE_128): New test.
  55         * configure: Rebuilt.
  56         * config.in: Rebuilt.
  57         * doc/install.texi (Options specification): Document
  58         --with-long-double-128.
  59
  60         * config/rs6000/linux.h [TARGET_DEFAULT_LONG_DOUBLE_128]
  61         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
  62         * config/rs6000/linux64.h [TARGET_DEFAULT_LONG_DOUBLE_128]
  63         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
  64
  65 2006-02-23  Aldy Hernandez  <aldyh@redhat.com>
  66
  67         * config/s390/s390.c (override_options): Handle
  68         TARGET_DEFAULT_LONG_DOUBLE_128.
  69
  70         * config/alpha/alpha.c (override_options): Handle
  71         TARGET_DEFAULT_LONG_DOUBLE_128.
  72
  73         * config/sparc/sparc.c (sparc_override_options): Handle
  74         TARGET_DEFAULT_LONG_DOUBLE_128.
  75
  76 2006-02-22  Daniel Jacobowitz  <dan@codesourcery.com>
  77
  78         * Makefile.in (stmp-fixinc): Use real-$(INSTALL_HEADERS_DIR).
  79         (real-install-headers-tar, real-install-headers-cpio)
  80         (real-install-headers-cp): New targets.
  81
  82 2006-02-22  Richard Sandiford  <richard@codesourcery.com>
  83
  84         * tree.h (variable_section): Delete.
  85         * varasm.c (variable_section): Delete.
  86
  87 2006-02-22  Paolo Bonzini  <bonzini@gnu.org>
  88
  89         * install.texi: Add notes on install.texi2html.
  90         (Building in parallel): Do not use footnotes.
  91
  92 2006-02-21  Aldy Hernandez  <aldyh@redhat.com>
  93
  94         PR libgomp/26234
  95         * doc/install.texi (Configuration): Document --disable-libgomp.
  96
  97 2006-02-21  Geoffrey Keating  <geoffk@apple.com>
  98
  99         * config/i386/darwin.h (DWARF2_FRAME_REG_OUT): New.
 100
 101 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
 102
 103         * config/i386/sse.md (vec_extractv2df_1_sse): New.
 104         (vec_extractv2df_0_sse): New.
 105
 106 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
 107
 108         * defaults.h (CFA_FRAME_BASE_OFFSET): Define.
 109         * config/ia64/ia64.h (CFA_FRAME_BASE_OFFSET): Override.
 110         * doc/tm.texi (CFA_FRAME_BASE_OFFSET): Document.
 111         * dwarf2out.c (build_cfa_loc): New offset parameter.  Add it
 112         to the result of the expression.
 113         (def_cfa_1): Adjust.
 114         (frame_pointer_cfa_offset): Rename to...
 115         (frame_pointer_fb_offset): ... this.  Adjust all uses.
 116         (convert_cfa_to_loc_list): Rename to...
 117         (convert_cfa_to_fb_loc_list): ... this.  New offset parameter.
 118         Pass it on to build_cfa_loc.
 119         (compute_frame_pointer_to_cfa_displacement): Rename to...
 120         (compute_frame_pointer_to_fb_displacement): ... this.  New
 121         offset parameter.  Use it in computation.
 122         (gen_subprogram_die): Compute cfa_fb_offset with the new
 123         macro, and use it to compute the fb loc list and the
 124         displacement.
 125
 126 2006-02-21  Bernd Schmidt  <bernd.schmidt@analog.com>
 127
 128         * config/bfin/predicates.md (cc_operand): Delete predicate.  All uses
 129         replaced with register_operand.
 130         * config/bfin/bfin.c (bfin_register_move_cost): Moving CC to any
 131         non-DREG is expensive.
 132         * config/bfin/bfin.h (FIXED_REGISTERS): CC isn't fixed.
 133         * config/bfin/bfin.md (movbi): Fix constraints and template for moves
 134         involving memory.
 135
 136 2006-02-21  Joseph S. Myers  <joseph@codesourcery.com>
 137
 138         * doc/install.texi2html: Use set -e.
 139
 140 2006-02-21  Richard Sandiford  <richard@codesourcery.com>
 141
 142         * doc/tm.texi (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
 143         (ASM_OUTPUT_SHARED_LOCAL): Delete.
 144         * doc/invoke.texi (-fshared-data): Delete.
 145         * common.opt (fshared-data): Delete.
 146         * varasm.c (asm_emit_uninitialised): Remove flag_shared_data handling.
 147         (assemble_static_space): Remove #if 0 code.
 148         * system.h (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
 149         (ASM_OUTPUT_SHARED_LOCAL): Poison.
 150         * config/cris/cris.h: Remove FIXME.
 151
 152 2006-02-21  Paolo Bonzini  <bonzini@gnu.org>
 153
 154         * doc/sourcebuild.texi (Front End Directory): No more double-colon
 155         hooks.
 156
 157 2006-02-21  Jakub Jelinek  <jakub@redhat.com>
 158
 159         PR middle-end/26379
 160         * combine.c (simplify_shift_const_1): Disable nested shifts
 161         optimization for vector shifts.
 162
 163 2006-02-20  Roger Sayle  <roger@eyesopen.com>
 164
 165         PR tree-optimization/26361
 166         * tree-vrp.c (extract_range_from_unary_expr): Handle NEGATE_EXPR
 167         of unsigned integer types.
 168
 169 2006-02-20  Sebastian Pop  <pop@cri.ensmp.fr>
 170
 171         * tree-chrec.c (eq_evolutions_p): New.
 172         * tree-chrec.h (eq_evolutions_p): Declared.
 173         * tree-data-ref.c: Fix formatting.
 174         (datadep_stats, dependence_stats): New.
 175         (gcd): Moved...
 176         (print_direction_vector): New.
 177         (dump_data_dependence_relation): Use print_direction_vector.
 178         (object_analysis, create_data_ref): Handle COMPONENT_REF.
 179         (compute_subscript_distance): Static.
 180         (initialize_data_dependence_relation): Static.  Get the number
 181         of loops surrounding the references from the callers, and initialize
 182         DDR_SIZE_VECT to nb_loops.  Use both base_addr_differ_p and
 183         base_object_differ_p analyzers.
 184         (analyze_ziv_subscript, analyze_siv_subscript_cst_affine,
 185         compute_overlap_steps_for_affine_1_2,
 186         analyze_subscript_affine_affine): Count the classified dependences.
 187         Print a message when a test failed.
 188         (can_use_analyze_subscript_affine_affine): New.
 189         (analyze_siv_subscript): Compute the data dependences on symbolic
 190         scevs that verify can_use_analyze_subscript_affine_affine.
 191         (chrec_steps_divide_constant_p): Returns true, false, or unknown.
 192         (analyze_miv_subscript): Update use of chrec_steps_divide_constant_p.
 193         Handle symbolic scevs.
 194         (analyze_overlapping_iterations): Let symbolic affine scevs to be
 195         analyzed.
 196         (subscript_dependence_tester): Moved...
 197         (build_classic_dist_vector, build_classic_dir_vector): Don't use
 198         lambda_vector_clear on newly allocated vectors.  Get nb_loops from
 199         DDR_SIZE_VECT instead of getting it in parameter.
 200         (subscript_dependence_tester): ... here.  Take as a parameter
 201         loop_nest_depth.  Call build_classic_dist_vector and
 202         build_classic_dir_vector.
 203         (compute_affine_dependence): Update subscript_dependence_tester
 204         parameters.  Update datadep_stats counters.  Call
 205         compute_subscript_distance.
 206         (compute_self_dependence): Save the dist and dir vectors.  Call
 207         compute_subscript_distance.
 208         (ddr_p, DEF_VEC_P(ddr_p), DEF_VEC_ALLOC_P(ddr_p,heap)): Moved...
 209         (compute_all_dependences): Reorder parameters as they were before
 210         conversion to VEC.  Pass nb_loops and loop_nest_depth.  Don't call
 211         compute_subscript_distance.  Update the use of
 212         compute_affine_dependence and initialize_data_dependence_relation.
 213         (find_data_references_in_loop): Handle COMPONENT_REF.
 214         (compute_data_dependences_for_loop): Initialize dependence_stats.
 215         Don't call build_classic_dist_vector and build_classic_dir_vector.
 216         Update the parameters of initialize_data_dependence_relation and
 217         compute_all_dependences.  Print the statistics from datadep_stats.
 218         (analyze_all_data_dependences): Static.  Not used until the pass for
 219         checking the data dependences is contributed.
 220         * tree-data-ref.h (ddr_p, DEF_VEC_P(ddr_p),
 221         DEF_VEC_ALLOC_P(ddr_p,heap)): ... here.
 222         (initialize_data_dependence_relation, compute_affine_dependence,
 223         analyze_all_data_dependences, compute_subscript_distance): Removed.
 224         (print_direction_vector): New.
 225         * lambda.h (gcd): ... here.
 226         (lambda_vector_gcd): Moved here from gcd_vector.
 227         * lambda-code.c (gcd, gcd_vector): Removed.
 228         (lambda_compute_target_space): Use lambda_vector_gcd.  Fix formatting.
 229         * Makefile.in (tree-vect-patterns.o): Depends on TREE_DATA_REF_H.
 230
 231 2006-02-20  Diego Novillo  <dnovillo@redhat.com>
 232
 233         * ipa-type-escape.c: Tidy some comments and white space.
 234         * tree-ssa-operands.c: Likewise.
 235
 236 2006-02-20  Andrew Pinski  <pinskia@physics.uc.edu>
 237
 238         PR tree-opt/25879
 239         * tree-pretty-print.c (debug_tree_chain): Walk the chains.
 240         (dump_decl_name): Do not walk the decl tree chains.
 241         * tree-pass.h (TDF_CHAIN): Remove.
 242
 243 2006-02-20  Rafael Ávila de Espíndola  <rafael.espindola@gmail.com>
 244
 245         * Makefile.in (C): Remove
 246         (PROTO): Remove
 247         (.PHONY): Remove C and PROTO
 248
 249 2006-02-20  Roger Sayle  <roger@eyesopen.com>
 250
 251         PR middle-end/26236
 252         * doc/c-tree.texi (INTEGER_TYPE): Remove reference to the now
 253         deprecated CHAR_TYPE tree code.
 254
 255 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
 256
 257         * configure.ac (target_list): Add install-info, dvi, html.
 258         * configure: Regenerate.
 259
 260         * ada/Make-lang.in, cp/Make-lang.in, fortran/Make-lang.in,
 261         java/Make-lang.in, objc/Make-lang.in, objcp/Make-lang.in,
 262         treelang/Make-lang.in: Do not use double-colon rules.
 263
 264 2006-02-20  Daniel Berlin  <dberlin@dberlin.org>
 265
 266         * tree.h (struct tree_memory_tag): Add is_used_alone member.
 267         (TMT_USED_ALONE): New macro.
 268         * tree-pass.h (PROP_tmt_usage): New property.
 269         (TODO_update_tmt_usage): New todo.
 270         * tree-ssa-alias.c (updating_used_alone): New variable.
 271         (recalculate_used_alone): New function.
 272         (compute_may_aliases): Set updating_used_alone, call
 273         recalculate_used_alone.
 274         * tree-sra.c (pass_sra): Note that this pass destroys
 275         PROP_tmt_usage, and add TODO_update_tmt_usage.
 276         * tree-ssa-forwprop.c (pass_forwprop): Ditto.
 277         * tree-flow.h (updating_used_alone): Prototype.
 278         (recalculate_used_alone): Ditto.
 279         * passes.c (execute_todo): Add code to set updating_used_alone,
 280         and call recalculate.
 281         * tree-ssa-operands.c (add_virtual_operand): Only append bare def
 282         for clobber if used alone, and add assert to verify used_alone
 283         status.
 284
 285 2006-02-20  Angel Nunez Mencias  <anunez@de.ibm.com>
 286
 287         * config/s390/s390.c (legitimize_pic_address): Assertions checking
 288         for non tls symbols added.
 289         (legitimize_address): Do nothing for PLUS expressions if one of the
 290         addends is a tls symbol reference.
 291
 292 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
 293
 294         PR bootstrap/25476
 295
 296         * Makefile.in (LDFLAGS): Define from autoconf substitution.
 297
 298         * Makefile.in (BOOTSTRAPPING): New.
 299         (quickstrap): New definition if BOOTSTRAPPING=yes.
 300
 301         * Makefile.in (CONFIG_LANGUAGES): Substitute all_selected_languages.
 302         * configure.ac: Substitute all_selected_languages with the languages
 303         that were configured.  For all the other variables except
 304         lang_specs_files, include all the languages in the tree.
 305         * configure: Regenerate.
 306
 307         * Makefile.in (stmp-fixinc): Copy includes from the prev-gcc directory,
 308         if there is one.  Run the commands to run fixincludes in the same
 309         subshell.
 310
 311         * doc/makefile.texi: Document new makefile targets from toplevel bootstrap.
 312         * doc/install.texi: Document exact conventions for searching target tools.
 313         Document --with-build-time-tools.  Document toplevel bootstrap.  Document
 314         something more about building an Ada cross-compiler.  Don't list GNU Make
 315         requirements which affect all platforms.
 316
 317 2006-02-19  Roger Sayle  <roger@eyesopen.com>
 318
 319         PR middle-end/19543
 320         * varasm.c (compare_constant) <INTEGER_CST>: Integer constants are
 321         only equivalent if the have both the same mode and precision.
 322
 323 2006-02-20  Ben Elliston  <bje@au.ibm.com>
 324
 325         * doc/tree-ssa.texi (Interfaces): Describe low vs. high GIMPLE.
 326
 327 2006-02-19  Roger Sayle  <roger@eyesopen.com>
 328             Steven Bosscher  <stevenb.gcc@gmail.com>
 329
 330         * gcse.c (want_to_gcse_p): On STACK_REGS targets, look through
 331         constant pool references to identify stack mode constants.
 332         * rtlanal.c (constant_pool_constant_p): New predicate to check
 333         whether operand is a floating point constant in the pool.
 334         * rtl.h (constant_pool_constant_p): Prototype here.
 335         * loop.c (scan_loop): Avoid hoisting constants from the constant
 336         pool on STACK_REGS targets.
 337         (load_mems): Likewise.
 338         * loop-invariant.c (get_inv_cost): Make hoisting constant pool
 339         loads into x87 registers expensive in terms of register pressure.
 340
 341 2006-02-19  Roger Sayle  <roger@eyesopen.com>
 342
 343         * gthr-posix.h: On Tru64, map __gthr_foo as a weak reference to
 344         __foo and not foo when _PTHREAD_USE_MANGLED_NAMES_ is defined.
 345
 346 2006-02-19  David Edelsohn  <edelsohn@gnu.org>
 347
 348         * config/rs6000/xcoff.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
 349         * config/rs6000/rs6000.c (rs6000_xcoff_asm_output_anchor): Define.
 350
 351 2006-02-19  Daniel Berlin  <dberlin@dberlin.org>
 352
 353         * doc/invoke.texi: Document -fipa-pta.
 354         * common.opt: Add ipa-pta option.
 355         * tree-ssa-structalias.c (DONT_PROPAGATE_WITH_ANYTHING): Removed.
 356         (do_sd_constraint): Enable DONT_PROPAGATE_WITH_ANYTHING code.
 357         (do_ds_constraint): Ditto.
 358         (get_constraint_for): Only add to referenced_vars if
 359         referenced_vars exists.
 360         (insert_into_field_list): Rewrite to do this unsorted.
 361         (insert_into_field_list_sorted): Rename old insert_into_field_list
 362         to this.
 363         (create_function_info_for): Use insert_into_field_list_sorted.
 364         (create_variable_info_for): Rewrite so it uses unsorted version,
 365         since the field list is sorted.
 366         (intra_create_variable_infos): Only add to referenced_vars if
 367         referenced_vars exists.
 368         (ipa_pta_execute): Init heapvars, and delete when done.
 369         * passes.c (init_optimization_passes): Add call to pass_ipa_pta.
 370
 371 2006-02-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
 372
 373         * doc/install.texi: Add missing `@samp'.
 374
 375 2006-02-18  Andrew Pinski <pinskia@physics.uc.edu>
 376
 377         * config/rs6000/darwin.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P):
 378         Use the arguments.
 379
 380 2006-02-18  Mark Wielaard  <mark@klomp.org>
 381
 382         * doc/contrib.texi (Contributors): Add classpath/libgcj hackers
 383         who added new 4.1 features, bug fixes and integration support.
 384
 385 2006-02-18  David Edelsohn  <edelsohn@gnu.org>
 386
 387         PR target/26350
 388         * config/rs6000/rs6000.md (extenddftf2): Force 0.0 to validized
 389         MEM for ABI_V4 pic.
 390
 391 2006-02-18  Richard Sandiford  <richard@codesourcery.com>
 392
 393         * cselib.c (cselib_init): Change RTX_SIZE to RTX_CODE_SIZE.
 394         * emit-rtl.c (copy_rtx_if_shared_1): Use shallow_copy_rtx.
 395         (copy_insn_1): Likewise.  Don't copy each field individually.
 396         Reindent.
 397         * read-rtl.c (apply_macro_to_rtx): Use RTX_CODE_SIZE instead
 398         of RTX_SIZE.
 399         * reload1.c (eliminate_regs): Use shallow_copy_rtx.
 400         * rtl.c (rtx_size): Rename variable to...
 401         (rtx_code_size): ...this.
 402         (rtx_size): New function.
 403         (rtx_alloc_stat): Use RTX_CODE_SIZE instead of RTX_SIZE.
 404         (copy_rtx): Use shallow_copy_rtx.  Don't copy each field individually.
 405         Reindent.
 406         (shallow_copy_rtx_stat): Use rtx_size instead of RTX_SIZE.
 407         * rtl.h (rtx_code_size): New variable.
 408         (rtx_size): Change from a variable to a function.
 409         (RTX_SIZE): Rename to...
 410         (RTX_CODE_SIZE): ...this.
 411
 412         PR target/9703
 413         PR tree-optimization/17106
 414         * doc/tm.texi (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Document.
 415         (Anchored Addresses): New section.
 416         * doc/invoke.texi (-fsection-anchors): Document.
 417         * doc/rtl.texi (SYMBOL_REF_IN_BLOCK_P, SYMBOL_FLAG_IN_BLOCK): Likewise.
 418         (SYMBOL_REF_ANCHOR_P, SYMBOL_FLAG_ANCHOR): Likewise.
 419         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): Likewise.
 420         * hooks.c (hook_bool_mode_rtx_false): New function.
 421         * hooks.h (hook_bool_mode_rtx_false): Declare.
 422         * gengtype.c (create_optional_field): New function.
 423         (adjust_field_rtx_def): Add the "block_sym" field for SYMBOL_REFs when
 424         SYMBOL_REF_IN_BLOCK_P is true.
 425         * target.h (output_anchor, use_blocks_for_constant_p): New hooks.
 426         (min_anchor_offset, max_anchor_offset): Likewise.
 427         (use_anchors_for_symbol_p): New hook.
 428         * toplev.c (compile_file): Call output_object_blocks.
 429         (target_supports_section_anchors_p): New function.
 430         (process_options): Check that -fsection-anchors is only used on
 431         targets that support it and when -funit-at-a-time is in effect.
 432         * tree-ssa-loop-ivopts.c (prepare_decl_rtl): Only create DECL_RTL
 433         if the decl doesn't have one.
 434         * dwarf2out.c: Remove instantiations of VEC(rtx,gc).
 435         * expr.c (emit_move_multi_word, emit_move_insn): Pass the result
 436         of force_const_mem through use_anchored_address.
 437         (expand_expr_constant): New function.
 438         (expand_expr_addr_expr_1): Call it.  Use the same modifier when
 439         calling expand_expr for INDIRECT_REF.
 440         (expand_expr_real_1): Pass DECL_RTL through use_anchored_address
 441         for all modifiers except EXPAND_INITIALIZER.  Use expand_expr_constant.
 442         * expr.h (use_anchored_address): Declare.
 443         * loop-unroll.c: Don't declare rtx vectors here.
 444         * explow.c: Include output.h.
 445         (validize_mem): Call use_anchored_address.
 446         (use_anchored_address): New function.
 447         * common.opt (-fsection-anchors): New switch.
 448         * varasm.c (object_block_htab, anchor_labelno): New variables.
 449         (hash_section, object_block_entry_eq, object_block_entry_hash)
 450         (use_object_blocks_p, get_block_for_section, create_block_symbol)
 451         (use_blocks_for_decl_p, change_symbol_section): New functions.
 452         (get_variable_section): New function, split out from assemble_variable.
 453         (make_decl_rtl): Create a block symbol if use_object_blocks_p and
 454         use_blocks_for_decl_p say so.  Use change_symbol_section if the
 455         symbol has already been created.
 456         (assemble_variable_contents): New function, split out from...
 457         (assemble_variable): ...here.  Don't output any code for
 458         block symbols; just pass them to place_block_symbol.
 459         Use get_variable_section and assemble_variable_contents.
 460         (get_constant_alignment, get_constant_section, get_constant_size): New
 461         functions, split from output_constant_def_contents.
 462         (build_constant_desc): Create a block symbol if use_object_blocks_p
 463         says so.  Or into SYMBOL_REF_FLAGS.
 464         (assemble_constant_contents): New function, split from...
 465         (output_constant_def_contents): ...here.  Don't output any code
 466         for block symbols; just pass them to place_section_symbol.
 467         Use get_constant_section and get_constant_alignment.
 468         (force_const_mem): Create a block symbol if use_object_blocks_p and
 469         use_blocks_for_constant_p say so.  Or into SYMBOL_REF_FLAGS.
 470         (output_constant_pool_1): Add an explicit alignment argument.
 471         Don't switch sections here.
 472         (output_constant_pool): Adjust call to output_constant_pool_1.
 473         Switch sections here instead.  Don't output anything for block symbols;
 474         just pass them to place_block_symbol.
 475         (init_varasm_once): Initialize object_block_htab.
 476         (default_encode_section_info): Keep the old SYMBOL_FLAG_IN_BLOCK.
 477         (default_asm_output_anchor, default_use_aenchors_for_symbol_p)
 478         (place_block_symbol, get_section_anchor, output_object_block)
 479         (output_object_block_htab, output_object_blocks): New functions.
 480         * target-def.h (TARGET_ASM_OUTPUT_ANCHOR): New macro.
 481         (TARGET_ASM_OUT): Include it.
 482         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): New macro.
 483         (TARGET_MIN_ANCHOR_OFFSET, TARGET_MAX_ANCHOR_OFFSET): New macros.
 484         (TARGET_USE_ANCHORS_FOR_SYMBOL_P): New macro.
 485         (TARGET_INITIALIZER): Include them.
 486         * rtl.c (rtl_check_failed_block_symbol): New function.
 487         * rtl.h: Include vec.h.  Declare heap and gc rtx vectors.
 488         (block_symbol, object_block): New structures.
 489         (rtx_def): Add a block_symbol field to the union.
 490         (BLOCK_SYMBOL_CHECK): New macro.
 491         (rtl_check_failed_block_symbol): Declare.
 492         (SYMBOL_FLAG_IN_BLOCK, SYMBOL_FLAG_ANCHOR): New SYMBOL_REF flags.
 493         (SYMBOL_REF_IN_BLOCK_P, SYMBOL_REF_ANCHOR_P): New predicates.
 494         (SYMBOL_FLAG_MACH_DEP_SHIFT): Bump by 2.
 495         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): New accessors.
 496         * output.h (output_section_symbols): Declare.
 497         (object_block): Name structure.
 498         (place_section_symbol, get_section_anchor, default_asm_output_anchor)
 499         (default_use_anchors_for_symbol_p): Declare.
 500         * Makefile.in (RTL_BASE_H): Add vec.h.
 501         (explow.o): Depend on output.h.
 502         * config/rs6000/rs6000.c (TARGET_MIN_ANCHOR_OFFSET): Override default.
 503         (TARGET_MAX_ANCHOR_OFFSET): Likewise.
 504         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Likewise.
 505         (rs6000_use_blocks_for_constant_p): New function.
 506
 507 2006-02-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
 508
 509         * doc/install.texi (hppa*-hp-hpux*): Update for 4.1.0.
 510
 511 2006-02-18  Andrew Pinski  <pinskia@physics.uc.edu>
 512
 513         PR tree-opt/25680
 514         * tree-ssa-ccp.c (ccp_fold): Handle store CCP of REALPART_EXPR and
 515         IMAGPART_EXPR.
 516
 517 2006-02-18  Diego Novillo  <dnovillo@redhat.com>
 518
 519         * tree-flow.h (struct var_ann_d): Rename field is_alias_tag to
 520         is_aliased.
 521         Update all users.
 522
 523 2006-02-18  Jakub Jelinek  <jakub@redhat.com>
 524
 525         PR middle-end/26334
 526         * stmt.c (decl_overlaps_hard_reg_set_p): Use DECL_HARD_REGISTER
 527         instead of DECL_REGISTER.
 528
 529 2006-02-18  Olivier Hainque  <hainque@adacore.com>
 530
 531         PR ada/13408
 532         * pa.h (WIDEST_HARDWARE_FP_SIZE): Define.
 533
 534 2006-02-18  Joseph S. Myers  <joseph@codesourcery.com>
 535
 536         PR target/24837
 537         * config.gcc: Define UCLIBC_DEFAULT to 0 or 1.
 538         * opth-gen.awk: Handle Var and InverseMask together.
 539         * config/linux.opt (muclibc, mglibc): Use Var(linux_uclibc).
 540         * config/linux.h: Use #if not #ifdef for testing UCLIBC_DEFAULT.
 541         (TARGET_C99_FUNCTIONS): Test OPTION_GLIBC not TARGET_GLIBC.
 542         (CHOOSE_DYNAMIC_LINKER): Give an error for -mglibc and -muclibc
 543         used together.
 544         (UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
 545         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
 546         * config/alpha/linux-elf.h (GLIBC_DYNAMIC_LINKER,
 547         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
 548         LINUX_DYNAMIC_LINKER): Define.
 549         (ELF_DYNAMIC_LINKER): Define to LINUX_DYNAMIC_LINKER.
 550         * config/alpha/linux.h (TARGET_C99_FUNCTIONS): Define to
 551         TARGET_GLIBC.
 552         * config/cris/linux.h (GLIBC_DYNAMIC_LINKER): Define.
 553         (CRIS_LINK_SUBTARGET_SPEC): Pass a -dynamic-linker option.
 554         * config/frv/linux.h (GLIBC_DYNAMIC_LINKER): Define.
 555         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
 556         (TARGET_C99_FUNCTIONS): Don't define.
 557         * config/i386/linux.h (DYNAMIC_LINKER): Rename to
 558         GLIBC_DYNAMIC_LINKER.
 559         (SUBTARGET_EXTRA_SPECS): Use LINUX_DYNAMIC_LINKER.
 560         * config/i386/linux64.h (GLIBC_DYNAMIC_LINKER32,
 561         GLIBC_DYNAMIC_LINKER64): Define.
 562         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
 563         LINUX_DYNAMIC_LINKER64.
 564         * config/ia64/linux.h (GLIBC_DYNAMIC_LINKER): Define.
 565         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
 566         * config/m32r/linux.h (GLIBC_DYNAMIC_LINKE): Define.
 567         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
 568         * config/m68k/linux.h (GLIBC_DYNAMIC_LINKER): Define.
 569         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
 570         * config/mips/linux64.h (GLIBC_DYNAMIC_LINKER32,
 571         GLIBC_DYNAMIC_LINKER64, GLIBC_DYNAMIC_LINKERN32,
 572         UCLIBC_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKERN32): Define.
 573         (LINK_SPEC): Use LINUX_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKER64
 574         and LINUX_DYNAMIC_LINKER32.
 575         * config/mn10300/linux.h (GLIBC_DYNAMIC_LINKER): Define.
 576         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
 577         * config/pa/pa-linux.h (GLIBC_DYNAMIC_LINKER): Define.
 578         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
 579         * config/rs6000/linux.h (TARGET_C99_FUNCTIONS): Define to
 580         TARGET_GLIBC.
 581         * config/rs6000/linux64.h (TARGET_C99_FUNCTIONS): Likewise.
 582         (GLIBC_DYNAMIC_LINKER32, GLIBC_DYNAMIC_LINKER64,
 583         UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
 584         CHOOSE_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
 585         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
 586         (LINK_OS_LINUX_SPEC32): Use LINUX_DYNAMIC_LINKER32.
 587         (LINK_OS_LINUX_SPEC64): Use LINUX_DYNAMIC_LINKER64.
 588         * config/rs6000/sysv4.h (GLIBC_DYNAMIC_LINKER,
 589         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
 590         LINUX_DYNAMIC_LINKER): Define.
 591         (LINK_OS_LINUX_SPEC): Use LINUX_DYNAMIC_LINKE.
 592         * config/s390/linux.h (GLIBC_DYNAMIC_LINKER32,
 593         GLIBC_DYNAMIC_LINKER64): Define.
 594         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
 595         LINUX_DYNAMIC_LINKER64.
 596         * config/sh/linux.h (GLIBC_DYNAMIC_LINKER): Define.
 597         (SUBTARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
 598         * config/sparc/linux.h (GLIBC_DYNAMIC_LINKER,
 599         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
 600         LINUX_DYNAMIC_LINKER): Define.
 601         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
 602         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
 603         * config/sparc/linux64.h (GLIBC_DYNAMIC_LINKER32,
 604         GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER32,
 605         UCLIBC_DYNAMIC_LINKER64, CHOOSE_DYNAMIC_LINKER,
 606         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
 607         (LINK_ARCH32_SPEC): Use LINUX_DYNAMIC_LINKER32.
 608         (LINK_ARCH64_SPEC, LINK_SPEC): Use LINUX_DYNAMIC_LINKER64.
 609         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
 610         * config/xtensa/linux.h (GLIBC_DYNAMIC_LINKER): Define.
 611         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
 612         * doc/invoke.texi (-muclibc): Remove caveat about supported
 613         targets.
 614
 615 2006-02-17  Grigory Zagorodnev <grigory_zagorodnev@linux.intel.com>
 616
 617         * doc/cpp.texi (__TIMESTAMP__): Document.
 618
 619 2006-02-17  Roger Sayle  <roger@eyesopen.com>
 620
 621         PR middle-end/25600
 622         * fold-const.c (fold_binary): Fold (X >> C) != 0 into X < 0 when
 623         C is one less than the width of X (and related transformations).
 624         * simplify_rtx.c (simplify_unary_operation_1): Transform
 625         (neg (lt x 0)) into either (ashiftrt X C) or (lshiftrt X C)
 626         depending on STORE_FLAG_VALUE, were C is one less then the
 627         width of X.
 628
 629 2006-02-17  Daniel Berlin  <dberlin@dberlin.org>
 630
 631         Fix PR tree-optimization/26341
 632         * tree-ssa-operands.c (add_virtual_operand): Remove assert
 633         about NAME_MEMORY_TAG's.
 634
 635 2006-02-17  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
 636
 637         PR target/26255
 638         * pa.md: Create separate HI and QI move patterns for 32-bit and 64-bit
 639         with hardware float support, and software float support.  Add fcpy
 640         alternative to hardware patterns.  Add alternatives to copy between
 641         general and floating-point registers to the 32-bit pattern.
 642         * pa.c (pa_secondary_reload): Don't abort if reload tries to find a
 643         secondary reload to load a QI or HI mode constant into a floating
 644         point register.
 645         * pa32-regs.h (VALID_FP_MODE_P): Allow QImode and HImode.
 646         * pa64-regs.h (VALID_FP_MODE_P): Likewise.
 647
 648 2006-02-17  Andrew Pinski  <pinskia@physics.uc.edu>
 649
 650         PR target/26272
 651         * config/rs6000/darwin.md (load_macho_picbase_si): Add
 652         pc to the pattern.
 653         (load_macho_picbase_di): Likewise.
 654
 655 2006-02-16  Jeff Law  <law@redhat.com>
 656
 657         * tree-vrp.c (set_value_range_to_nonnegative): New function.
 658         (vrp_expr_computes_nonnegative, ssa_name_nonnegative_p): Likewise.
 659         (ssa_name_nonzero_p): Likewise.
 660         (get_value_range): Return NULL if VRP is not running.
 661         (extract_range_from_expr): Fallback to tree_expr_XXX_p if
 662         VRP routines do not discover a range.
 663         (vrp_finalize): Clear VR_VALUE to indicate VRP is not running.
 664         * tree.h (ssa_name_nonzero_p, ssa_name_nonnegative_p): Prototype.
 665         * fold-const.c (tree_expr_nonzero_p): For SSA_NAMEs, query VRP.
 666         (tree_expr_nonnegative_p): Similarly.
 667         * tree-ssa-dom.c (nonzero_vars, nonzero_vars_stack): Remove.
 668         (restore_nonzero_vars_to_original_value): Remove.
 669         (unsafe_associative_fp_binop): Remove.
 670         (tree_ssa_dominator_optimize): Remove initialization and
 671         finalization of nonzero_vars and nonzero_vars_stack.
 672         (dom_opt_initialize_block): No longer push marker on
 673         nonzero_vars_stack.
 674         (dom_opt_finalize_block): No longer call
 675         restore_nonzero_vars_to_original_value.
 676         (record_equivalences_from_phis): No longer look for
 677         nonzero PHI arguments.
 678         (cprop_into_successor_phis): No longer propagate nonzero
 679         property into PHI arguments.  Lose unused argument.  Caller
 680         updated.
 681         (record_equivalences_from_stmt): No longer record nonzero
 682         values for SSA_NAMEs.
 683         (lookup_avail_expr): No longer use nonzero_vars.
 684
 685         * stor-layout.c (set_sizetype): Set TYPE_MAX_VALUE properly
 686         for sizetype when sizetype is unsigned.
 687
 688 2006-02-16  Denis Nagorny <denis_nagorny@linux.intel.com>
 689
 690         PR rtl-optimization/25603
 691         * reload.c (reg_inc_found_and_valid_p): New. Check REG_INC note.
 692         (regno_clobbered_p): Use it. Reusing SETS argument for REG_INC case.
 693         * reload1.c (choose_reload_regs): Added call of regno_clobbered_p
 694         with new meaning of SETS.
 695
 696 2006-02-16  Joseph S. Myers  <joseph@codesourcery.com>
 697
 698         PR target/20353
 699         PR target/24578
 700         PR target/24837
 701         * config/linux.opt: New file.
 702         * config/linux.h (CHOOSE_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER,
 703         LINUX_DYNAMIC_LINKER): Define.
 704         (TARGET_C99_FUNCTIONS): Define depending on TARGET_GLIBC.
 705         * config.gcc (*-*-linux*): Define extra_options.
 706         (*-*-*uclibc*): Define UCLIBC_DEFAULT.
 707         (arm*-*-linux-gnueabi): Change to arm*-*-linux-*eabi.
 708         * config/arm/linux-eabi.h (LINUX_TARGET_INTERPRETER): Change to
 709         GLIBC_DYNAMIC_LINKER.
 710         * config/arm/linux-elf.h (LINUX_TARGET_INTERPRETER): Likewise.
 711         (LINUX_TARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
 712         * config/mips/linux.h (GLIBC_DYNAMIC_LINKER): Define.
 713         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
 714         * doc/invoke.texi (GNU/Linux Options): New section.
 715
 716 2006-02-16  Eric Botcazou  <ebotcazou@libertysurf.fr>
 717
 718         * config/sparc/sparc.md (setjmp): Rewrite.
 719         (setjmp_32): Delete.
 720         (setjmp_64): Likewise.
 721
 722 2006-02-16  Daniel Berlin <dberlin@dberlin.org>
 723
 724         * tree-ssa-operands.c (access_can_touch_variable): Fix typo in
 725          previous change.
 726
 727 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
 728
 729         * loop-invariant.c (invariant_for_use, check_dependencies): Fail for
 730         read-write uses.
 731
 732 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
 733
 734         PR rtl-optimization/26296
 735         * Makefile.in (loop-invariant.c): Add except.h dependency.
 736         * loop-invariant.c: Include except.h.
 737         (find_invariant_insn): Ignore insns satisfying can_throw_internal.
 738
 739 2005-02-16  Paul Brook  <paul@codesourcery.com>
 740
 741         * reload1.c (emit_reload_insns): Invalidate dead input registers used
 742         for reloads.
 743
 744 2006-02-16  Bernd Schmidt  <bernd.schmidt@analog.com>
 745
 746         PR rtl-optimization/25636
 747         * local-alloc.c (update_equiv_regs): Lose a bogus rtx_equal_p test
 748         when deciding whether an insn is an initializing insn.
 749
 750 2006-02-15 Daniel Berlin  <dberlin@dberlin.org>
 751
 752         * tree.c (init_ttree): Add STRUCT_FIELD_TAG handling.
 753         (tree_code_size): Ditto.
 754         * tree.h (struct tree_memory_tag): Remove parent_var.
 755         (struct tree_struct_field_tag): New.
 756         (SFT_OFFSET): New.
 757         (SFT_SIZE): New.
 758         (union tree_node): Add sft member.
 759         * tree-ssa-alias.c (get_tmt_for): Don't handle TYPE_READONLY
 760         specially here.
 761         (create_sft): Add size and offset argument, set SFT_OFFSET and
 762         SFT_SIZE.
 763         (create_overlap_variables_for): Update for SFT_OFFSET/SFT_SIZE.
 764         * treestruct.def: Add TS_STRUCT_FIELD_TAG.
 765         * tree-flow-inline.h (get_subvar_at): Update for
 766         SFT_OFFSET/SFT_SIZE.
 767         (var_can_have_subvars): Ditto.
 768         (overlap_subvar): Ditto.
 769         * print-tree.c (print_node): Print out interesting things for
 770         SFT's.
 771         * tree-flow.h (struct subvar): Remove offset and size members.
 772         * tree-ssa-operands.c (get_expr_operands): Update for
 773         get_indirect_ref_operands changes.
 774         (get_indirect_ref_operands): Call add_virtual_operand instead of
 775         add_stmt_operand.  Only recurse on base var if requested.
 776         (access_can_touch_variable): New function.
 777         (add_stmt_operand): Split virtual operand handling into ...
 778         (add_virtual_operand): Here.  Add offset, size, and for_clobber
 779         arguments.  Prune alias sets.
 780         (add_call_clobber_ops): Call add_virtual_operand.
 781
 782 2006-02-15  Jakub Jelinek  <jakub@redhat.com>
 783
 784         PR middle-end/26300
 785         * combine.c (make_extraction): Bail out if ORIG_POS is negative.
 786
 787         * tree.h (struct tree_omp_clause): Use OMP_CLAUSE_CODE rather
 788         than TREE_CODE as index into omp_clause_num_ops array.
 789
 790 2006-02-15  Uttam Pawar  <uttamp@us.ibm.com>
 791
 792         PR rtl-optimization/26184
 793         * modulo-sched.c (generate_reg_moves): Free bitmap vector
 794         uses_of_defs.
 795         * modulo-sched.c (sms_schedule): Free g_arr pointer.
 796         * modulo-sched.c (sms_schedule_by_order): Free bitmap pointers
 797         must_precede, must_follow and tobe_scheduled.
 798
 799         PR other/26147
 800         * opts.c (common_handle_option): Free new_option pointer.
 801         * df-core.c (df_analyze): Free postorder pointer.
 802
 803 2006-02-15  Rafael Ávila de Espíndola <rafael.espindola@gmail.com>
 804
 805         * Makefile.in: Fix the examples about the use of stamps
 806
 807 2006-02-15  Michael Matz  <matz@suse.de>
 808
 809         PR middle-end/22275
 810
 811         * stor-layout.c (layout_decl): Zero-width bitfields aren't
 812         influenced by maximum_field_alignment or DECL_PACKED.
 813         (update_alignment_for_field): Ditto.
 814         (place_field): Ditto.
 815         * doc/extend.texi (<#pragma pack>, <Type Attributes>): Document
 816         this behaviour.
 817
 818 2006-02-15  Paolo Bonzini  <bonzini@gnu.org>
 819
 820         * cfg.c (dump_flow_info): Get dump flags as an additional parameter.
 821         (debug_flow_info): Pass it.
 822         * alias.c (rest_of_handle_cfg): Adjust calls to dump_flow_info.
 823         * bb-reorder.c (reorder_basic_blocks): Likewise.
 824         * cfgcleanup.c (rest_of_handle_jump2): Likewise.
 825         * cse.c (rest_of_handle_cse, rest_of_handle_cse2): Likewise.
 826         * flow.c (life_analysis, recompute_reg_usage): Likewise.
 827         * gcse.c (gcse_main, bypass_jumps): Likewise.
 828         * ifcvt.c (rest_of_handle_if_conversion): Likewise.
 829         * local-alloc.c (rest_of_handle_local_alloc): Likewise.
 830         * loop-init.c (rtl_loop_init, rtl_loop_done): Likewise.
 831         * profile.c (compute_branch_probabilities, branch_prob): Likewise.
 832         * rtl.h (dump_flow_info): Adjust prototype.
 833         * tracer.c (rest_of_handle_tracer, tracer): Likewise.
 834         * var-tracking.c (variable_tracking_main): Likewise.
 835         * passes.c (execute_todo): Obey TDF_BLOCKS for RTL.
 836         * tree-dump.c (enable_rtl_dump_file): Enable the details and blocks
 837         options.
 838
 839 2006-02-15  Marcin Dalecki <martin@dalecki.de>
 840
 841         * tree-ssa-dom.c (dom_thread_across_edge): fix tag expression
 842         construction.
 843
 844 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
 845
 846         PR tree-optimization/26209
 847         * tree-ssa-loop.c (pass_scev_cprop): Add TODO_cleanup_cfg.
 848         * tree-cfgcleanup.c (cleanup_control_flow): Remove dead
 849         eh edges.
 850         * tree-cfg.c (replace_uses_by): Do not alter cfg.
 851
 852 2006-02-14  Roger Sayle  <roger@eyesopen.com>
 853
 854         PR middle-end/23670
 855         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Optimize (X&Y)|Y into
 856         (X,Y) and the corresponding symmetry related transformations.
 857         (fold_binary) <BIT_AND_EXPR>: Likewise, optimize (X|Y)&Y into
 858         (X,Y) and its symmetry related transformations.
 859
 860 2006-02-14  Roger Sayle  <roger@eyesopen.com>
 861
 862         * dojump.c (do_compare_rtx_and_jump): Also handle multi-word GTU
 863         and GEU.
 864
 865 2006-02-14  Adam Nemet  <anemet@caviumnetworks.com>
 866
 867         * simplify-rtx.c (simplify_subreg): Combine SUBREG and TRUNCATE.
 868
 869 2006-02-14  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
 870
 871         PR bootstrap/26053
 872         * configure.ac (HAVE_COMDAT_GROUP): Don't assume non-GNU linkers
 873         support COMDAT group.
 874         * configure: Regenerate.
 875
 876 2006-02-14  Roger Sayle  <roger@eyesopen.com>
 877
 878         PR middle-end/26279
 879         PR middle-end/26280
 880         PR middle-end/26283
 881         * dojump.c (do_compare_rtx_and_jump): Handle multi-word LE.
 882
 883 2006-02-14  Daniel Berlin  <dberlin@dberlin.org>
 884
 885         Fix PR tree-optimization/26260
 886
 887         * doc/invoke.texi (max-fields-for-field-sensitive): Document
 888         param.
 889         * params.h (MAX_FIELDS_FOR_FIELD_SENSITIVE): New.
 890         * params.def (PARAM_MAX_FIELDS_FOR_FIELD_SENSITIVE): Ditto.
 891         * tree-ssa-structalias.c (create_variable_info_for): Use
 892         MAX_FIELDS_FOR_FIELD_SENSITIVE.
 893
 894 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
 895
 896         * doc/invoke.texi (-fprefetch-loop-arrays, -fprefetch-loop-arrays-rtl):
 897         Document.
 898         * tree-ssa-loop-niter.c (number_of_iterations_ne,
 899         number_of_iterations_lt, number_of_iterations_cond): Remember the shape
 900         of the ending condition.
 901         * tree-ssa-loop-manip.c: Include params.h.
 902         (build_if_stmt, can_unroll_loop_p, determine_exit_conditions,
 903         tree_unroll_loop): New functions.
 904         * tree-pass.h (pass_loop_prefetch): Declare.
 905         * loop.c (rest_of_handle_loop_optimize): Test for
 906         -fprefetch-loop-arrays-rtl.
 907         * tree-scalar-evolution.h (affine_iv): Moved to tree-flow.h.
 908         * timevar.def (TV_TREE_PREFETCH): New timevar.
 909         * tree-ssa-loop.c (tree_ssa_loop_prefetch, gate_tree_ssa_loop_prefetch,
 910         pass_loop_prefetch): New.
 911         * tree-cfgcleanup.c: Include tree-scalar-evolution.h.
 912         (cleanup_tree_cfg_loop): Call scev_reset.
 913         * common.opt (fprefetch-loop-arrays-rtl): Add.
 914         * tree-ssa-loop-prefetch.c: New file.
 915         * tree-outof-ssa.c (struct value_expr_d): Add expr_vars field.
 916         (new_temp_expr_table): Initialize expr_vars.
 917         (free_temp_expr_table): Cleanup expr_vars.
 918         (check_replaceable, find_replaceable_in_bb): Prevent accumulating
 919         expressions from being merged into one.
 920         * tree-flow.h (affine_iv): Moved from tree-scalar-evolution.h.
 921         (struct tree_niter_desc): Add control, bound and cmp fields.
 922         (tree_ssa_prefetch_arrays, can_unroll_loop_p, tree_unroll_loop):
 923         Declare.
 924         * Makefile.in (tree-ssa-loop-prefetch.o): Add.
 925         (tree-cfgcleanup.o): Add SCEV_H dependency.
 926         (tree-ssa-loop-manip.o): Add PARAMS_H dependency.
 927         * passes.c (init_optimization_passes): Add pass_loop_prefetch.
 928
 929 2006-02-14  Richard Guenther  <rguenther@suse.de>
 930
 931         PR tree-optimization/26258
 932         * tree-ssa-structalias.c (find_func_aliases): Handle aggregates
 933         in PHI argument processing.
 934
 935 2006-02-13  Adam Nemet  <anemet@caviumnetworks.com>
 936
 937         * simplify-rtx.c (simplify_unary_operation_1) <TRUNCATE>: Return
 938         new expression in the requested machine mode.
 939
 940 2006-02-13  Roger Sayle  <roger@eyesopen.com>
 941
 942         * optabs.c (expand_abs): Don't call do_jump_by_parts_greater_rtx
 943         directly, instead let do_compare_rtx_and_jump handle this for us.
 944         * expr.c (expand_expr_real_1): Likewise.
 945         * dojump.c (do_jump_by_parts_greater_rtx): Make static.  Move
 946         before do_jump_by_parts_greater.
 947         (do_jump_by_parts_greater): Move after do_jump_by_parts_greater_rtx.
 948         * expr.h (do_jump_by_parts_greater_rtx): Delete prototype.
 949
 950 2006-02-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
 951
 952         * pa/quadlib.c: Use defines instead of enum qfcmp_magic.
 953
 954 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
 955
 956         PR rtl-optimization/26235
 957         * loop-invariant.c (hash_invariant_expr_1): Handle 'i' and 'n' formats.
 958         (invariant_expr_equal_p): Handle 'i' and 'n' formats.  Fail on unknown
 959         format.
 960
 961 2006-02-13  Jeff Law  <law@redhat.com>
 962
 963         * tree-vrp.c (extract_range_from_binary_expr): Remove handling of
 964         TRUTH_XOR_EPR.
 965
 966 2006-02-13  Jakub Jelinek  <jakub@redhat.com>
 967
 968         PR middle-end/26092
 969         * gimplify.c (gimplify_call_expr): Don't call get_callee_fndecl
 970         twice if decl is a builtin.  When trying again, call get_callee_fndecl
 971         first to verify it is still a builtin.
 972
 973 2006-02-13  Geoffrey Keating  <geoffk@apple.com>
 974
 975         * dwarf2out.c (base_type_die): Don't add AT_name here.
 976         (subrange_type_die): Don't add AT_name here.
 977         (modified_type_die): Rearrange code flow.  Do add AT_name here.
 978
 979 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
 980
 981         PR rtl-optimization/26247
 982         PR rtl-optimization/26248
 983         * loop-invariant.c (may_assign_reg_p): Do not allow VOIDmode.
 984
 985 2006-02-13  Richard Sandiford  <richard@codesourcery.com>
 986
 987         * config/floatunditf.c: Use if __LDBL_MANT_DIG__ == 113.
 988         * config/fixtfdi.c: Likewise.
 989         * config/fixunstfdi.c: Likewise.
 990         * config/floatditf.c: Likewise.
 991
 992 2006-02-13  Roger Sayle  <roger@eyesopen.com>
 993
 994         PR middle-end/24427
 995         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Transform (X&C1)|C2
 996         into (X,C2) if C1 is a subset of the bits of C2.  Transform
 997         (X&C1)|C2 into X|C2 if C1|C2 == ~0.  Canonicalize (X&C1)|C2 as
 998         (X&(C1&~C2))|C2.
 999         <BIT_AND_EXPR>: Canonicalize (X|C1)&C2 as (X&C2)|(C1&C2).
1000
1001 2006-02-13  Josh Conner  <jconner@apple.com>
1002
1003         PR target/25376
1004         * varasm.c (function_section): Check for section name before
1005         calling select_section on targets that define
1006         USE_SELECT_SECTION_FOR_FUNCTIONS.  On other targets, use
1007         unlikely_text_section instead of hot_function_section if
1008         first_function_block_is_cold.
1009
1010 2006-02-13  J"orn Rennecke <joern.rennecke@st.com>
1011
1012         PR middle-end/25335
1013         * reload1.c (gen_reload): Also use find_replacement in UNARY_P case.
1014
1015 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
1016
1017         PR rtl-optimization/26222
1018         * function.c (assign_stack_temp_for_type): Do not reuse stack slots
1019         after tree->rtl expansion.
1020         * loop-invariant.c (move_invariant_reg): Use force_operand on rhs
1021         before passing it to emit_move_insn.
1022
1023 2006-02-12  Gabriel Dos Reis  <gdr@integrable-solutions.net>
1024
1025         * doc/invoke.texi (-Write-strings): Document that it is enabled by
1026         default.
1027         * c.opt (-Wwrite-strings): Declare variable warn_write_strings.
1028         Clarify documentation.
1029         * c-common.h (warn_write_strings): Remove.
1030         * c-common.c (warn_write_strings): Likewise.
1031         * c-opts.c (c_common_init_options): Enable -Wwrite-strings by
1032         default for C++.
1033
1034 2006-02-12  Roger Sayle  <roger@eyesopen.com>
1035
1036         PR middle-end/25724
1037         * dojump.c (do_jump): Call do_compare_rtx_and_jump.
1038         (do_jump_parts_zero_rtx): New function renamed from
1039         do_jump_parts_equality_rtx.  Made static.  Add a mode argument.
1040         (do_jump_parts_equality_rtx): New function split out from
1041         do_jump_parts_equality.  Old implementation renamed as above.
1042         Call do_jump_parts_zero_rtx if either operand is zero.
1043         (do_jump_parts_equality): Call do_jump_parts_equality_rtx to
1044         do all of the heavy lifting.
1045         (do_compare_rtx_and_jump): Handle multi-word comparisons by
1046         calling either do_jump_by_parts_greater_rtx or
1047         do_jump_by_parts_equality_rtx.
1048         * expr.h (do_jump_by_parts_equality_rtx): Remove prototype.
1049         * expmed.c (do_cmp_and_jump): Now multi-word optimization has
1050         moved to do_compare_rtx_and_jump, call it directly.
1051         * stmt.c (do_jump_if_equal): Remove static prototype.  Add a
1052         mode argument.  Call do_compare_rtx_and_jump.
1053         (emit_case_nodes): Update calls to do_jump_if_equal.
1054
1055 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
1056
1057         PR rtl-optimization/26225
1058         * loop-invariant.c (may_assign_reg_p): Do not allow BLKmode operands.
1059
1060 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
1061
1062         PR rtl-optimization/26232
1063         * loop-invariant.c (find_invariant_insn): Ignore insns that set CC0.
1064
1065 2006-02-11  Jason Merrill  <jason@redhat.com>
1066
1067         PR tree-opt/24365
1068         * tree-inline.c (declare_return_variable): Just don't use the
1069         modify target if it's a gimple complex reg and the return slot
1070         isn't.
1071
1072 2006-02-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
1073
1074         * doc/contrib.texi: Update my entry.
1075
1076 2006-02-10  Geoffrey Keating  <geoffk@apple.com>
1077
1078         * config/i386/darwin.h (DBX_REGISTER_NUMBER): Define.
1079
1080 2006-02-10  Diego Novillo  <dnovillo@redhat.com>
1081
1082         * tree-inline.c (estimate_num_insns_1): Make OpenMP directives
1083         expensive.
1084
1085 2006-02-10  Zdenek Dvorak <dvorakz@suse.cz>
1086
1087         * doc/invoke.texi (-floop-optimize2): Removed.
1088         * toplev.c (process_options): Remove handling of flag_loop_optimize2.
1089         * loop-init.c (gate_handle_loop2): Do not test flag_loop_optimize2.
1090         Test flag_branch_on_count_reg only if HAVE_doloop_end.
1091         * common.opt (floop-optimize2): Removed.
1092         (fmove-loop-invariants): Enabled by default.
1093
1094 2006-02-10  Sebastian Pop  <pop@cri.ensmp.fr>
1095
1096         * tree-if-conv.c (combine_blocks): Free the result of
1097         get_loop_exit_edges.
1098
1099 2006-02-10  Jeff Law  <law@redhat.com>
1100
1101         * fold-const.c (tree_expr_nonzero_p): Fix thinko.
1102
1103         PR tree-optimization/26213
1104         * tree-ssa-threadedge.c (simplify_control_stmt_condition): Do not
1105         loop trying to follow SSA_NAME_VALUE chains.
1106
1107 2006-02-10  Richard Guenther  <rguenther@suse.de>
1108
1109         * tree-dfa.c (get_ref_base_and_extent): When computing maxsize
1110         deal with structures that end in implicitly variable sized arrays.
1111
1112 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
1113
1114         PR rtl-optimization/24762
1115         * df-scan.c (df_bb_refs_record): Record correct registers defined on
1116         eh edges.
1117
1118 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
1119
1120         * tree-ssa-loop-ivopts.c (struct loop_data, loop_data): Removed.
1121         (struct ivopts_data): Add regs_used field.
1122         (tree_ssa_iv_optimize_init): Do not allocate aux fields for loops.
1123         (ivopts_global_cost_for_size, determine_set_costs): Use data->regs_used
1124         instead of loop_data->regs_used;
1125         (free_loop_data): Do not free aux fields for loops.
1126         (tree_ssa_iv_optimize): Do not pass loops to tree_ssa_iv_optimize_init
1127         and tree_ssa_iv_optimize_finalize.
1128
1129 2006-02-09  Kaz Kojima  <kkojima@gcc.gnu.org>
1130
1131         * config/sh/sh.h (FUNCTION_VALUE): Don't handle CHAR_TYPE.
1132
1133 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
1134
1135         PR target/26141
1136         * sh.c (sh_gimplify_va_arg_expr): Don't change the result type when
1137         computing the effective result type.
1138
1139 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
1140
1141         PR inline-asm/16194
1142         * tree.h (decl_overlaps_hard_reg_set_p) Don't declare.
1143         (tree_overlaps_hard_reg_set): Declare.
1144         * stmt.c (decl_overlaps_hard_reg_set_p): Now static.  Change return
1145         type and signature to match function type expected by walk_tree.
1146         (tree_overlaps_hard_reg_set): New function.
1147         (decl_conflicts_with_clobbers_p): Rename to:
1148         (tree_conflicts_with_clobbers_p).  Take HARD_REG_SET * argument.
1149         Use tree_overlaps_hard_reg_set.  Changed caller.
1150         * doc/tm.texi (TARGET_MD_ASM_CLOBBERS): Replace
1151         decl_overlaps_hard_reg_set_p with tree_overlaps_hard_reg_set.
1152         * cris.c (cris_md_asm_clobbers): Likewise.
1153
1154 2006-02-09  Bernd Schmidt  <bernd.schmidt@analog.com>
1155
1156         * reload1.c (emit_input_reload_insns): Delete code that tries to
1157         inherit using find_equiv_reg.
1158
1159 2006-02-09  Gabriel Dos Reis  <gdr@integrable-solutions.net>
1160
1161         * c-common.h (flag_const_strings): Don't declare.
1162         * c-common.c (flag_const_strings): Remove.
1163         * c.opt (fconst_strings): Remove.
1164         * c-opts.c (c_common_handle_option): Remove <OPT_fconst_strings>.
1165         <OPT_Wwrite_strings>: Don't set flag_const_strings.
1166         (c_common_init_options): Don't set flag_const_strings.
1167         * doc/invoke.texi (-fno-const-strings): Remove documentation.
1168
1169 2006-02-09  Richard Earnshaw  <richard.earnshaw@arm.com>
1170
1171         * arm.md (tlobits_cbranch): New pattern.
1172         * arm.h (arm_select_cc_mode): For thumb, only return CC_Nmode if
1173         testing a single bit.
1174
1175 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
1176
1177         PR tree-opt/26179
1178         * tree-ssa-pre.c (create_component_ref_by_pieces):
1179         Handle RETURN_DECL like VAR_DECL.
1180
1181 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
1182
1183         PR middle-end/26134
1184         * fold-const.c (fold_indirect_ref_1): Fold
1185         "*(foo *)&complexfoo" to "__real__ complexfoo"
1186         and "((foo*)&complexfoo)[1]" to "__imag__ complexfoo".
1187
1188 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
1189
1190         * tree-flow-inline.h (var_can_have_subvars):
1191         Volatile variables should not have subvariables.
1192
1193 2006-02-09  Diego Novillo  <dnovillo@redhat.com>
1194
1195         PR 26180
1196         * tree-vrp.c (vrp_int_const_binop): Detect overflow when
1197         multiplying unsigned values.
1198         Tidy comments.
1199
1200 2006-02-09  Eric Botcazou  <ebotcazou@libertysurf.fr>
1201
1202         * config/sparc/sparc.c (tls_call_delay): Fix oversight.
1203
1204 2006-02-08  Jason Merrill  <jason@redhat.com>
1205
1206         PR c++/25979
1207         * tree.def: Elaborate on difference from MODIFY_EXPR.
1208         * doc/c-tree.texi (INIT_EXPR): Likewise.
1209         * gimplify.c (internal_get_tmp_var): Use INIT_EXPR.
1210         (gimplify_decl_expr, gimplify_init_ctor_eval): Likewise.
1211         (gimplify_target_expr): Likewise.
1212         (gimplify_cond_expr): Remove target handling.
1213         (gimplify_modify_expr): Don't clobber INIT_EXPR code here.
1214         (gimplify_expr): Clobber it here.
1215         (gimplify_modify_expr_rhs): Push assignment into COND_EXPR here.
1216         Do return slot optimization if we have an INIT_EXPR.
1217
1218         PR tree-opt/24365
1219         * tree-inline.c (declare_return_variable): Also clear
1220         DECL_COMPLEX_GIMPLE_REG_P as needed in the modify_dest case.
1221
1222         PR c++/16405
1223         * gimplify.c (gimplify_modify_expr_rhs): Re-enable *& handling.
1224
1225         PR middle-end/22439
1226         * gimplify.c (gimplify_one_sizepos): Fix typo.
1227
1228 2006-02-08  Jeff Law  <law@redhat.com>
1229
1230         PR tree-optimization/21417
1231         * tree-ssa-threadedge.c (thread_across_edge): Reject threading
1232         across a backedge if the control statement at the end of the
1233         block is data dependent on other statements in the same block.
1234         (record_temporary_equivalences_from_stmts): Remove over-conservative
1235         test for threading across backedges.
1236
1237         * tree-ssa-dce.c (remove_dead_statement): When removing a dead
1238         control statement, handle all three special cases in the same
1239         manner as they all have the same desired solution.  No longer
1240         special case edge flag updating when the post dominator is
1241         the exit block.
1242
1243 2006-02-08  Roger Sayle  <roger@eyesopen.com>
1244
1245         * tree.def (CHAR_TYPE): Remove.
1246         * dbxout.c (dbxout_type): Delete dead handling of CHAR_TYPE.
1247         * dwarf2out.c (base_type_die, is_base_type): Likewise.
1248         (gen_type_die) <ARRAY_TYPE>: Remove handling of CHAR_TYPE arrays.
1249         (gen_string_type_die): Delete unreachable function.
1250
1251         * tree-pretty-print.c (dump_generic_node): Don't handle CHAR_TYPE.
1252         * tree.c (build_int_cst_wide, type_contains_placeholder_1,
1253         type_hash_eq, variably_modified_type_p, walk_type_fields): Likewise.
1254         * tree.h (NUMERICAL_TYPE_CHECK, INTEGRAL_TYPE_P): Likewise.
1255         * builtins.c (type_to_class): Likewise.
1256         * fold-const.c (fold_convert, build_range_check,
1257         merge_ranges): Likewise.
1258         * expr.c (count_type_elements): Likewise.
1259         * c-pretty-print.c (pp_c_type_specifier): Likewise.
1260         * stor-layout.c (layout_type): Likewise.
1261         * ipa-type-escape.c (type_to_consider): Likewise.
1262         * gimplify.c (omp_firstprivatize_type_sizes,
1263         gimplify_type_sizes): Likewise.
1264         * explow.c (promote_mode): Likewise.
1265         * tree-sra.c (is_sra_scalar_type): Likewise.
1266         * varasm.c (output_constant): Likewise.
1267         * tree-inline.c (remap_type_1): Likewise.
1268         * convert.c (convert_to_pointer, convert_to_real,
1269         convert_to_integer, convert_to_complex): Likewise.
1270
1271 2006-02-08  Daniel Berlin  <dberlin@dberlin.org>
1272
1273         * df-scan.c (df_def_record_1): A set destination may
1274         be a parallel regardless of mode.
1275
1276 2006-02-08  Roger Sayle  <roger@eyesopen.com>
1277
1278         PR target/22209
1279         * config/mips/mips.h (MIN_UNITS_PER_WORD): Don't define for libgcc.
1280         * config/mips/_tilib.c: Remove.
1281         * config/fixtfdi.c: New libgcc source file.
1282         * config/fixunstfdi.c: New source file.
1283         * config/floatditf.c: New source file.
1284         * config/floatunditf.c: New souce file.
1285         * config/mips/t-iris6 (LIB2FUNCS_EXTRA): Include the new source
1286         files above instead of config/mips/_tilib.c.
1287         * config/mips/t-linux64 (LIB2FUNCS_EXTRA): Likewise.
1288
1289 2006-02-08  Jeff Law  <law@redhat.com>
1290
1291         PR tree-optimization/26169
1292         * tree-vrp.c (execute_vrp): Perform any queued SSA updates before
1293         threading jumps.
1294
1295 2006-02-08  Zdenek Dvorak <dvorakz@suse.cz>
1296
1297         * df.h (DF_REG_SIZE): Return the length of the initialized
1298         part of the array.
1299
1300 2006-02-08  Nathan Sidwell  <nathan@codesourcery.com>
1301
1302         * gcc/config/m68k/lb1sf68.asm (__divsf3, __divdf3, __mulsf3,
1303         __muldf3): Return a correctly signed zero.
1304
1305 2006-02-08  Paolo Bonzini  <bonzini@gnu.org>
1306
1307         * passes.c (register_one_dump_file): Accept the current properties
1308         instead of pass number.  Adjust call to dump_register.  Remove
1309         duplicated code.
1310         (register_dump_files): Now a wrapper around...
1311         (register_dump_files_1): ... this one.  Do not modify the pass
1312         structure.
1313         (next_pass_1): Cosmetic fix.
1314         (execute_todo): Keep second parameter only.  Use curr_properties
1315         instead of fetching it from the pass structure.  Check and set
1316         last_verified.
1317         (execute_one_pass): Handle TODO_set_props.  Use curr_properties
1318         instead of fetching it from the pass structure.  Fix calls to
1319         execute_todo.  Update curr_properties and initialize .vcg RTL dump
1320         after running the pass.  Reset last_verified.
1321         * tree-dump.c (dump_files): Renumber consecutively.  Put .cgraph dump
1322         at the beginning.
1323         (FIRST_AUTO_NUMBERED_DUMP): New.
1324         (dump_register): Remove "num" parameter, assign it within the
1325         function.
1326         (get_dump_file_name): Modify template for dumps.
1327         * tree-dump.h (dump_register): Adjust prototype.
1328         * tree-pass.h (enum tree_dump_index): Move cgraph at the beginning.
1329         (PROP_trees): Add PROP_gimple_lomp.
1330         (TODO_set_props): New.
1331         * gimple-low.c (pass_lower_cf): Do not destroy PROP_gimple_lcf.
1332         * tree-eh.c (pass_lower_eh): Do not destroy PROP_gimple_leh.
1333         * cfgexpand.c (pass_expand): Destroy PROP_trees.
1334
1335 2006-02-08  Jakub Jelinek  <jakub@redhat.com>
1336
1337         * config.gcc (sparc-*-linux*): Add sparc/t-linux to tmake_file.
1338         (sparc64-*-linux*): Likewise.
1339         * config/sparc/t-linux64 (SHLIB_MAPFILES): Removed.
1340         * config/sparc/t-linux: New file.
1341         * config/sparc/libgcc-sparc-glibc.ver (__fixtfdi, __fixunstfdi,
1342         __floatditf): Export at GCC_LDBL_3.0 if -m32 -mlong-double-128.
1343         (__divtc3, __multc3, __powitf2): Export at GCC_LDBL_4.0.0 if
1344         -m32 -mlong-double-128.
1345
1346         * config.gcc (alpha*-*-linux*): Add alpha/t-linux to tmake_file.
1347         * config/alpha/t-linux: New file.
1348         * config/alpha/libgcc-alpha-ldbl.ver: New file.
1349
1350         * config/sparc/linux.h (TARGET_OS_CPP_BUILTINS): Define
1351         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128.
1352         (CPP_SUBTARGET_SPEC): Don't add -D__LONG_DOUBLE_128__ here.
1353         * config/sparc/linux64.h (TARGET_OS_CPP_BUILTINS): Define
1354         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128 and TARGET_ARCH32.
1355         (CPP_ARCH32_SPEC): Remove.
1356
1357 2006-02-07  Uttam Pawar  <uttamp@us.ibm.com>
1358
1359         PR tree-optimization/26145
1360         * tree-ssa-loop-unswitch.c (tree_unswitch_single_loop): Free
1361         bbs pointer.
1362
1363 2006-02-07  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1364
1365         PR target/26109
1366         * pa.c (attr_length_indirect_call): Don't return length 8 for distances
1367         >= 240000 when generating code for SOM runtime.
1368         (output_indirect_call): Don't use "b,l" instruction for indirect calls
1369         to $$dyncall when generating code for SOM runtime..
1370
1371 2006-02-07  Dirk Mueller  <dmueller@suse.com>
1372
1373         PR c++/18150
1374         * doc/invoke.texi (-Wsequence-point): Update documentation
1375         that -Wsequence-point is implemented for C++ as well.
1376
1377 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
1378
1379         * config/sol26.h (CPP_SUBTARGET_SPEC): Accept -pthread.
1380         * config/sol2.h (CPP_SUBTARGET_SPEC): Likewise.
1381         (LIB_SPEC): Likewise.
1382         * doc/invoke.texi (SPARC options): Document -pthread.
1383
1384 2006-02-07  Geoffrey Keating  <geoffk@apple.com>
1385
1386         * config/i386/i386.c (ix86_delegitimize_address): Support Darwin
1387         PIC addresses.
1388
1389 2006-02-07  Roger Sayle  <roger@eyesopen.com>
1390
1391         * config/sparc/sparc.c (sparc_type_code): Don't handle CHAR_TYPE.
1392         Correct comment describing BOOLEAN_TYPE.
1393
1394 2006-02-07  Dirk Mueller  <dmueller@suse.com>
1395
1396         * c.opt: C++ frontend supports -Wdiv-by-zero.
1397         * c-opts.c (c_common_handle_option): Remove dead case.
1398
1399 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
1400
1401         * configure.ac (TLS assembler check): Do not enable TLS by
1402         default on SPARC/Solaris before version 10.
1403         * configure: Regenerate.
1404
1405 2006-02-07  David Edelsohn  <edelsohn@gnu.org>
1406
1407         * doc/invoke.texi (xl-compat): Document conversion and support
1408         routine names.
1409
1410 2006-02-07  Jeff Law  <law@redhat.com>
1411
1412         * tree-vrp.c (find_conditional_asserts): Update comments.
1413         (simplify_stmt_for_jump_threading): New.
1414         (identify_jump_threads, finalize_jump_threads): New.
1415         (vrp_finalize): Call identify_jump_threads.
1416         (execute_vrp): Call finalize_jump_threads.
1417         * tree-ssa-dom.c (struct opt_stats_d): Remove num_iterations field.
1418         (vrp_element, vrp_data, vrp_element_p): Remove.
1419         (vrp_hash_elt, vrp_variables_stack): Remove.
1420         (vrp_hash, vrp_eq, record_range): Remove.
1421         (simplify_cond_and_lookup_avail_expr): Remove.
1422         (extract_range_from_cond): Remove.
1423         (thread_across_edge): Relocated into tree-ssa-threadedge.c.
1424         (simplify_stmt_for_jump_threading): New.
1425         (dom_thread_across_edge): New wrapper.
1426         (tree_ssa_dominator_optimize): No longer initialize or
1427         finalize any of the VRP datastructures.  Remove iteration
1428         step and simplify as a result of removal of iteration step.
1429         (pass_dominator): Perform a cfg cleanup after DOM.
1430         (dom_opt_finalize_block): Use the new common routines
1431         for threading jumps.  Simplify stack management slightly.
1432         No longer need to unwind VRP state.
1433         (record_equivalences_from_incoming_edge): No longer record
1434         VRP information.
1435         (eliminate_redundant_computations): No longer call
1436         simplify_cond_and_lookup_avail_expr.
1437         * tree-flow.h (potentially_threadable_block): Prototype.
1438         (thread_across_edge): Likewise.
1439         * Makefile.in (OBJS-common):  Add tree-ssa-threadedge.o
1440         (tree-ssa-threadedge.o): Add dependencies.
1441         * tree-ssa-threadedge.c: New file.
1442         * passes.c (init_optimization_passes): Merge PHIs before
1443         calling VRP.  Run VRP again late in the SSA optimization pipeline.
1444
1445 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
1446
1447         * df-core.c (df_set_blocks): Do not dereference function pointers.
1448         (df_finish1): Likewise.
1449         (df_hybrid_search_forward): Likewise.
1450         (df_hybrid_search_backward): Likewise.
1451         (df_iterative_dataflow): Likewise.
1452         (df_analyze_problem): Likewise.
1453         (df_compact_blocks): Likewise.
1454         (df_dump): Likewise.
1455         * df-scan.c (df_rescan_blocks): Likewise.
1456         (df_record_entry_block_defs): Likewise.
1457
1458         * genconditions.c (write_conditions): Guard the definition of
1459         'insn_conditions' with the check on GCC version.
1460         (write_writer): Guard the traversal 'insn_conditions' with
1461         the check on GCC version.
1462
1463 2006-02-07  Richard Guenther  <rguenther@suse.de>
1464
1465         PR c++/26140
1466         Revert
1467         2006-01-30  Richard Guenther  <rguenther@suse.de>
1468         PR c++/23372
1469         * gimplify.c (gimplify_target_expr): Handle easy cases
1470         without creating a temporary.
1471
1472 2006-02-07  Pete Steinmetz  <steinmtz@us.ibm.com>
1473
1474         * sched-rgn.c (compute_dom_prob_ps, compute_trg_info): Eradicate
1475         use of float in probability computations.  Use edge probabilities
1476         in place of statically computed probabilities.
1477         (min_spec_prob): New static variable.
1478         (schedule_insns): Initialize it.
1479         (GET_SRC_PROB): Removed.
1480         * doc/invoke.texi (min-sched-prob): Renamed to min-spec-prob.
1481
1482 2006-02-07  Alexandre Oliva  <aoliva@redhat.com>
1483
1484         PR debug/24444
1485         * config/ia64/unwind-ia64.c: Revert last change.
1486         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Removed.
1487         (INCOMING_FRAME_SP_OFFSET): Define.
1488
1489 2006-02-06  Roger Sayle  <roger@eyesopen.com>
1490
1491         * config/ia64/ia64.c (hfa_element_mode): Don't handle CHAR_TYPE.
1492
1493 2006-02-07  Ben Elliston  <bje@au.ibm.com>
1494
1495         * config/i386/i386.c (ix86_scalar_mode_supported_p): New.
1496         (TARGET_SCALAR_MODE_SUPPORTED_P): Define hook.
1497         (classify_argument): Handle SDmode, DDmode, TDmode for 64-bit.
1498         (ix86_return_in_memory): Handle TDmode.
1499         (ix86_libcall_value): Handle SDmode, DDmode, TDmode.
1500         (ix86_value_regno): Return non-TDmode decimal float modes in %eax.
1501
1502 2006-02-06  Richard Sandiford  <richard@codesourcery.com>
1503
1504         * reorg.c (dbr_schedule): Use dump_file instead of file.
1505
1506 2006-02-06  Steve Ellcey  <sje@cup.hp.com>
1507
1508         PR target/25917
1509         * config/ia64/predicates.md (extr_len_operand): New predicate.
1510         * config/ia64/ia64.md (extv): Tighten constraints.
1511         (extzv): Ditto.
1512         (*tbit_and_2): Ditto.
1513         (*tbit_and_3): Ditto.
1514         (*tbit_or_2): Ditto.
1515         (*tbit_or_3): Ditto.
1516         (*bit_zero): Ditto.
1517         (*bit_one): Ditto.
1518
1519 2006-02-06  Andrew Pinski  <pinskia@physics.uc.edu>
1520
1521         PR target/23359
1522         * config/i386/i386.md (trap): Use ASM_SHORT instead of .word.
1523
1524 2006-02-06  Zdenek Dvorak <dvorakz@suse.cz>
1525
1526         * tree-vrp.c (execute_vrp): Do not pass dump argument to.
1527         loop_optimizer_init and loop_optimizer_finalize
1528         * tree-ssa-sink.c (execute_sink_code): Ditto.
1529         * tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
1530         * tree-ssa-loop.c (tree_loop_optimizer_init, tree_ssa_loop_init,
1531         tree_ssa_loop_done): Ditto.
1532         * tree-ssa-pre.c (init_pre, fini_pre): Ditto.
1533         * sched-ebb.c: Include output.h.
1534         (schedule_ebbs): Do not use dump argument.
1535         * value-prof.h (struct profile_hooks): Remove profile_dump_file.
1536         * loop.c (loop_dump_stream): Removed.
1537         (loop_optimize, rest_of_handle_loop_optimize): Do not use dump
1538         argument.
1539         (scan_loop, move_movables, find_and_verify_loops, mark_loop_jump,
1540         emit_prefetch_instructions, loop_bivs_find, loop_bivs_check,
1541         final_biv_value, loop_biv_eliminable_p, loop_givs_rescan,
1542         loop_iterations, strength_reduce, record_biv, record_giv,
1543         final_giv_value, check_final_value, check_ext_dependent_givs,
1544         combine_givs, check_dbra_loop, maybe_eliminate_biv, load_mems,
1545         try_copy_prop, loop_delete_insns, try_swap_copy_prop): Use
1546         dump_file instead of loop_dump_stream.
1547         * ddg.c (print_ddg_edge, print_ddg, vcg_print_ddg): Do not call
1548         argument dump_file.
1549         * reorg.c (dbr_schedule, rest_of_handle_delay_slots): Do not use
1550         dump argument.
1551         * flow.c (life_analysis, rest_of_handle_life): Ditto.
1552         * haifa-sched.c: Include output.h
1553         (schedule_insns, sched_init): Do not use dump argument.
1554         * mode-switching.c (optimize_mode_switching): Ditto.
1555         * modulo-sched.c (stats_file): Removed.
1556         (print_node_sched_params): Do not call argument dump_file.
1557         (sms_schedule_by_order, loop_canon_p, sms_schedule,
1558         rest_of_handle_sms): Do not use dump argument.  Use dump_file instead
1559         of stats_file.
1560         * cse.c (cse_main, rest_of_handle_cse, rest_of_handle_cse2): Do not
1561         use dump argument.
1562         * loop-init.c (loop_optimizer_init, loop_optimizer_finalize,
1563         rtl_loop_init, rtl_loop_done): Ditto.
1564         * global.c (global_alloc, rest_of_handle_global_alloc): Ditto.
1565         * predict.c (combine_predictions_for_bb, tree_estimate_probability):
1566         Ditto.
1567         * recog.c (peephole2_optimize, rest_of_handle_peephole2): Ditto.
1568         * lcm.c (pre_edge_lcm, pre_edge_rev_lcm): Ditto.
1569         * regmove.c (fixup_match_1, fixup_match_2, regmove_optimize,
1570         rest_of_handle_regmove, rest_of_handle_stack_adjustments): Ditto.
1571         * emit-rtl.c (renumber_insns): Ditto.
1572         * cfgexpand.c (add_reg_br_prob_note, expand_gimple_cond_expr,
1573         expand_gimple_basic_block, tree_expand_cfg): Ditto.
1574         * regclass.c (regclass): Ditto.
1575         * tree-outof-ssa.c (analyze_edges_for_bb, perform_edge_inserts,
1576         remove_ssa_form, rewrite_out_of_ssa): Ditto.
1577         * reg-stack.c (compensate_edge, compensate_edges, convert_regs_1,
1578         convert_regs_2, convert_regs, reg_to_stack, rest_of_handle_stack_regs):
1579         Ditto.
1580         * sched-rgn.c (schedule_insns, rest_of_handle_sched): Ditto.
1581         * local-alloc.c (rest_of_handle_local_alloc): Do not pass dump_file
1582         to regclass.
1583         * gcse.c (gcse_file, debug_stderr): Removed.
1584         (gcse_main, bypass_jumps, rest_of_handle_jump_bypass,
1585         rest_of_handle_gcse): Do not use dump argument.
1586         (cprop_jump, cprop_insn, do_local_cprop, cprop, find_implicit_sets,
1587         one_cprop_pass, bypass_block, compute_pre_data, insert_insn_end_bb,
1588         pre_edge_insert, pre_insert_copy_insn, pre_delete, one_pre_gcse_pass,
1589         compute_code_hoist_vbeinout, compute_code_hoist_data,
1590         one_code_hoisting_pass, trim_ld_motion_mems, update_ld_motion_stores,
1591         compute_store_table, build_store_vectors, insert_insn_start_bb,
1592         insert_store, remove_reachable_equiv_notes, replace_store_insn,
1593         store_motion): Use dump_file instead of gcse_file.
1594         * ipa-type-escape.c (type_escape_execute): Remove debugging comments.
1595         * profile.c (profile_dump_file): Removed.
1596         (branch_prob): Use dump_file instead of profile_dump_file.
1597         * ipa.c (cgraph_remove_unreachable_nodes): Do not call argument
1598         dump_file.
1599         * tree-ssa-copy.c (dump_copy_of): Ditto.
1600         * rtl-factoring.c (rtl_seqabstr, rest_of_rtl_seqabstr): Do not pass
1601         dump file to life_analysis.
1602         * bt-load.c (branch_target_load_optimize): Ditto.
1603         * cfgcleanup.c (rest_of_handle_jump2): Do not pass dump_file to
1604         renumber_insns.
1605         * rtl.h (cse_main, renumber_insns, schedule_insns, schedule_ebbs,
1606         regclass, dbr_schedule): Declaration changed.
1607         * sched-int.h (sched_init): Declaration changed.
1608         * tree-profile.c (tree_profile_dump_file): Removed.
1609         (tree_profile_hooks): Removed profile_dump_file hook.
1610         * rtl-profile (rtl_profile_dump_file): Removed.
1611         (rtl_profile_hooks): emoved profile_dump_file hook.
1612         * cfgloop.h (loop_optimizer_init, loop_optimizer_finalize): Declaration
1613         changed.
1614         * c-gimplify.c (c_genericize): Do not call local variable dump_file.
1615         * tree-cfg.c (build_tree_cfg): Ditto.
1616         * Makefile.in (haifa-sched.o, sched-ebb.o): Add output.h dependency.
1617         * basic-block.h (life_analysis, pre_edge_lcm, pre_edge_rev_lcm):
1618         Declaration changed.
1619         * config/sh/sh.c (sh_output_mi_thunk): Do not pass dump_file to
1620         life_analysis and schedule_insns.
1621         * config/m68hc11/m68hc11.c (m68hc11_reorg): Do not pass dump_file to
1622         life_analysis.
1623         * config/mt/mt.c (mt_machine_reorg): Do not pass dump_file to
1624         dbr_schedule.
1625         * config/mips/mips.c (mips_reorg): Ditto.
1626         * config/ia64/ia64.c (ia64_reorg): Do not pass dump_file to
1627         schedule_ebbs.
1628
1629 2006-02-06  Aldy Hernandez  <aldyh@redhat.com>
1630
1631         * config/s390/s390.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
1632         (s390_mangle_fundamental_type): New.
1633         * config/s390/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
1634         Define.
1635
1636         * config/alpha/alpha.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
1637         (alpha_mangle_fundamental_type): New.
1638         * config/alpha/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
1639         Define.
1640
1641         * config/sparc/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
1642         Define.
1643         * config/sparc/linux64.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
1644         Define.
1645         * config/sparc/sparc.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
1646         (sparc_mangle_fundamental_type): New.
1647
1648 2006-02-06  Jakub Jelinek  <jakub@redhat.com>
1649
1650         * config.gcc (s390-*-linux*): Add s390/t-linux to tmake_file.
1651         (s390x-*-linux*): Likewise.
1652         * config/s390/t-linux64 (SHLIB_MAPFILES): Removed.
1653         * config/s390/t-linux: New file.
1654
1655 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
1656
1657         * config/i386/sync.md (sync_add<mode>, sync_sub<mode>, sync_ior<mode>,
1658         sync_and<mode>, sync_xor<mode>): Operand 0 is in-out.
1659
1660 2006-02-06  Daniel Berlin  <dberlin@dberlin.org>
1661
1662         * tree-ssa-pre.c (bb_value_sets_t): Add antic_safe_loads.
1663         (ANTIC_SAFE_LOADS): New macro.
1664         (find_or_generate_expression): Add prototype.
1665         (set_contains_value): Allow null set for sake of not always having
1666         to allocate ANTIC_SAFE_LOADS.
1667         (phi_translate): Move placement of AGGREGATE_TYPE_P check.
1668         Allow COMPONENT_REF too.
1669         (valid_in_set): Allow COMPONENT_REF.
1670         Check ANTIC_SAFE_LOADS too.
1671         (compute_antic_aux): Print out ANTIC_SAFE_LOADS.
1672         (compute_rvuse_and_antic_safe): Add ANTIC_SAFE computation, and
1673         rename.
1674         (can_PRE_operation): Add COMPONENT_REF.
1675         (create_component_ref_by_pieces): New function.
1676         (create_expression_by_pieces): Use create_component_ref_by_pieces.
1677         (insert_aux): Move AGGREGATE_TYPE_P check here.
1678         (compute_avail): Set bb local stmt uids.
1679         (pass_pre): Use TODO_update_ssa_only_virtuals.
1680
1681 2006-02-06  Ben Elliston  <bje@au.ibm.com>
1682
1683         * configure.ac: Unconditionally disable decimal float by default.
1684         * configure: Regenerate.
1685
1686 2006-02-06  Ben Elliston  <bje@au.ibm.com>
1687
1688         * read-rtl.c (read_name): Terminate reading on EOF.
1689
1690 2006-02-06  Ben Elliston  <bje@au.ibm.com>
1691
1692         * dfp.c (decimal_real_arithmetic): Change second argument type
1693         from int to enum tree_code. Do not always return true, but now
1694         return result of any call to decimal_do helper functions.
1695         * dfp.h (decimal_real_arithmetic): Update prototype.
1696
1697 2006-02-05  Eric Botcazou  <ebotcazou@libertysurf.fr>
1698
1699         * config/sparc/sol2-bi.h (SPARC_DEFAULT_CMODEL): Set to CM_MEDMID.
1700
1701 2006-02-05  Andrew Pinski  <pinskia@physics.uc.edu>
1702
1703         PR tree-opt/25251
1704         * tree-cfg.c (cleanup_dead_labels): Also don't remove
1705         forced labels.
1706
1707 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
1708
1709         * tree-vrp.c (cfg_loops): Removed.
1710         (adjust_range_with_scev, vrp_visit_assignment, execute_vrp):
1711         Use current_loops instead of cfg_loops.  Pass flags to
1712         loop_optimizer_init.
1713         * cfgloopmanip.c (fix_loop_structure): Update only available
1714         information.
1715         * tree-ssa-loop-ch.c (copy_loop_headers): Pass flags to
1716         loop_optimizer_init.
1717         * modulo-sched.c (build_loops_structure): Removed.
1718         (sms_schedule): Use loop_optimizer_init.
1719         * loop-init.c (loop_optimizer_init): Use flags to determine
1720         which properties of loops to prepare.
1721         (rtl_loop_init): Pass flags to loop_optimizer_init.
1722         * tree-ssa-sink.c (execute_sink_code): Ditto.
1723         * tree-ssa-loop.c (tree_loop_optimizer_init): Ditto.
1724         * tree-ssa-pre.c (init_pre): Ditto.
1725         * cfgloop.h (LOOPS_NORMAL): New.
1726         (loop_optimizer_init): Declaration changed.
1727
1728 2006-02-05  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1729
1730         * pa/x-ada-hpux10, pa/t-pa-hpux10, pa/t-pa-hpux11: New files.
1731         * config.gcc (hppa[12]*-*-hpux10*): Use pa/t-pa-hpux10 instead of
1732         pa/t-pa.
1733         * config.gcc (hppa[12]*-*-hpux11*): Use pa/t-pa-hpux11 instead of
1734         pa/t-pa.
1735         * config.host (hppa*-*-hpux10*): Use pa/x-ada-hpux10 instead of
1736         pa/x-ada.
1737         * pa/t-pa-hpux: Add lib2funcs.asm and quadlib.c rules.
1738         * pa/t-pa64: Delete quadlib.c rule.
1739         * pa/x-ada: Revert last change.
1740         * pa/t-pa: Revert last change.  Delete quadlib.c rule.
1741
1742 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
1743
1744         PR rtl-optimization/26087
1745         * rtlanal.c (canonicalize_condition): Do not cross basic block
1746         boundaries.
1747
1748 2006-02-04  Alexandre Oliva  <aoliva@redhat.com>
1749
1750         PR debug/24444
1751         * config/ia64/ia64.c: Include debug.h.
1752         (MAX_ARTIFICIAL_LABEL_BYTES): New.
1753         (ia64_label_after_insn, ia64_dwarf2out_def_steady_cfa): New.
1754         (IA64_CHANGE_CFA_IN_EPILOGUE): Define to 0.
1755         (process_epilogue, process_set, process_for_unwind_directive):
1756         Output unwind info only if requested.  Add CFA info if requested.
1757         Add new arguments as needed.  Adjust callers.
1758         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Override
1759         incorrect default.
1760         (DWARF2_FRAME_INFO): Define to zero.
1761         * config/ia64/unwind-ia64.c: Remove code that compensated for
1762         the CFA offset error fixed above.
1763         * config/ia64/t-ia64 (ia64.o): Depend on debug.h.
1764         * dwarf2out.c (DWARF2_FRAME_INFO): Define default.
1765         (dwarf2out_do_frame): Require nonzero DWARF2_UNWIND_INFO for
1766         -funwind-tables and -fexceptions to enable frame info.
1767         (dwarf2out_frame_init): Define initial CFA even if
1768         DWARF2_UNWIND_INFO is disabled.  Call initial_return_save if
1769         DWARF2_UNWIND_INFO is nonzero, not just defined.
1770         (dwarf2out_frame_finish): Output non-EH call frame info only
1771         if DWARF2_FRAME_INFO is nonzero.
1772         (convert_cfa_to_loc_list,
1773         compute_frame_pointer_to_cfa_displacement): Define even if
1774         unwind info is not supported.
1775         (gen_subprogram_die): Use the above unconditionally.  Remove
1776         legacy alternate code.
1777         * toplev.c (compile_file): Compile in call to
1778         dwarf2out_frame_finish if DWARF2_DEBUGGING_INFO is defined.
1779         (lang_dependent_init): Ditto for dwarf2out_frame_init.
1780
1781 2006-02-04  David Edelsohn  <edelsohn@gnu.org>
1782             Jakub Jelinek  <jakub@redhat.com>
1783
1784         * config/rs6000/rs6000.c (rs6000_mangle_fundamental_type): Mangle
1785         IBM extended float format long double as "g" on powerpc*-linux.
1786
1787 2006-02-03  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1788
1789         PR target/25926
1790         * pa/x-ada (X_ADA_CFLAGS): Define _X_HPUX10 on HP-UX 10.
1791         * pa/t-pa (TARGET_LIBGCC2_CFLAGS): Define _T_HPUX10 on HP-UX 10.
1792
1793 2006-02-03  Jason Merrill  <jason@redhat.com>
1794
1795         PR c++/25979
1796         * gimplify.c (gimplify_modify_expr_rhs): Disable *& optimization for now.
1797
1798         PR middle-end/25977
1799         * gimplify.c (gimplify_modify_expr_rhs): It's not always safe to do RVO
1800         on the return slot if it's an NRV.
1801
1802 2006-02-03  Zdenek Dvorak <dvorakz@suse.cz>
1803
1804         * tree-ssa-loop-ivopts.c (enum use_type): Remove USE_OUTER.
1805         (dump_use, add_derived_ivs_candidates, determine_use_iv_cost,
1806         rewrite_use): Do not handle USE_OUTER.
1807         (find_interesting_uses_outer_or_nonlin, find_interesting_uses_outer,
1808         add_iv_outer_candidates, may_replace_final_value,
1809         determine_use_iv_cost_outer, rewrite_use_outer): Removed.
1810         (find_interesting_uses_op): Functionality of
1811         find_interesting_uses_outer_or_nonlin moved here.
1812         (find_interesting_uses_outside): Use find_interesting_uses_op.
1813
1814 2006-02-03  Alan Modra  <amodra@bigpond.net.au>
1815
1816         PR target/25960
1817         * config/rs6000/darwin-ldouble.c (__gcc_qadd): Preserve -0.0 result.
1818
1819 2006-02-03  Andreas Krebbel  <krebbel1@de.ibm.com>
1820             Ulrich Weigand  <uweigand@de.ibm.com>
1821
1822         PR target/25864
1823         * config/s390/2084.md ("x_fsimptf", "x_fmultf", "x_fdivtf",
1824         "x_floadtf", "x_ftrunctf", "x_ftruncdf"): New insn reservations.
1825         * config/s390/fixdfdi.h (__fixunstfdi, __fixtfdi): New functions.
1826         * config/s390/s390.c (struct processor_costs): Add mxbr, sqxbr, dxbr
1827         and dxr fields.
1828         (z900_cost, z990_cost, z9_109_cost): Values for the new fields added.
1829         (s390_rtx_costs): Use the new fields to calculate rtx costs.
1830         (s390_secondary_input_reload_class, s390_secondary_output_reload_class):
1831         Define secondary reloads for TFmode moves.
1832         (constant_modes): Add TFmode.
1833         (NR_C_MODES): Set to 8.
1834         * config/s390/s390.h (TARGET_CPU_CPP_BUILTINS): Add __LONG_DOUBLE_128__
1835         builtin define.
1836         (LONG_DOUBLE_TYPE_SIZE): Set to 128 or 64.
1837         (LIBGCC2_LONG_DOUBLE_TYPE_SIZE, WIDEST_HARDWARE_FP_SIZE): Define.
1838         (HARD_REGNO_NREGS, HARD_REGNO_MODE_OK, CLASS_MAX_NREGS,
1839         CANNOT_CHANGE_MODE_CLASS): Consider TFmode.
1840         * config/s390/s390.md ("type" attribute): Add fsimptf, floadtf, fmultf,
1841         fdivtf, fsqrttf, ftrunctf, ftruncdf as possible values.
1842         (FPR mode macro): Add TFmode.
1843         (DSF mode macro): New.
1844         (<de>, <dee> mode attributes): Removed.
1845         (<xde>, <xdee>, <RRe>, <RXe>, <Rf> mode attributes): New.
1846         ("*cmp<mode>_ccs_0", "*cmp<mode>_ccs_0_ibm", "*cmp<mode>_ccs",
1847         "*cmp<mode>_ccs_ibm", "fix_trunc<FPR:mode><GPR:mode>2_ieee",
1848         "floatdi<mode>2", "floatsi<mode>2_ieee", "*add<mode>3",
1849         "*add<mode>3_cc", "*add<mode>3_cconly", "*add<mode>3_ibm",
1850         "*sub<mode>3", "*sub<mode>3_cc", "*sub<mode>3_cconly",
1851         "*sub<mode>3_ibm", "*mul<mode>3_ibm", "*fmadd<mode>", "*fmsub<mode>",
1852         "*div<mode>3", "*div<mode>3_ibm", "*neg<mode>2_cc",
1853         "*neg<mode>2_cconly", "*neg<mode>2", "*neg<mode>2_ibm",
1854         "*abs<mode>2_cc", "*abs<mode>2_cconly", "*abs<mode>2",
1855         "*abs<mode>2_ibm", "*negabs<mode>2_cc", "*negabs<mode>2_cconly",
1856         "*negabs<mode>2", "sqrt<mode>2"):
1857         Changed <de> to <xde>. R constraint replaced by <Rf>.
1858         ("*mul<mode>3"): Changed <dee> to <xdee>. R constraint replaced by
1859         <Rf>.
1860         ("fix_trunc<FPR:mode>di2"): 'FPR:' removed.
1861         ("*fmadd<mode>", "*fmsub<mode>"): FPR mode replaced by DSF.
1862         ("*movtf_64", "*movtf_31"): New insn definitions followed by 5
1863         splitters.
1864         ("movtf", "reload_outtf", "reload_intf", "trunctfdf2", "trunctfsf2",
1865         "extenddftf2", "extendsftf2"): New expanders.
1866         ("*trunctfdf2_ieee", "*trunctfdf2_ibm", "*trunctfsf2_ieee",
1867         "*trunctfsf2_ibm", "*extenddftf2_ieee", "*extenddftf2_ibm",
1868         "*extendsftf2_ieee", "*extendsftf2_ibm"): New insn patterns.
1869         * config/s390/s390.opt (mlong-double-128, mlong-double-64):
1870         New options.
1871         * config/s390/t-crtstuff (TARGET_LIBGCC2_CFLAGS): Macro defined.
1872         * config/s390/libgcc-glibc.ver (__divtc3, __multc3, __powitf2,
1873         __fixtfti, __fixunstfti, __floattitf, __fixtfdi, __fixunstfdi,
1874         __floatditf): Add a GCC_4.1.0 symbol version tag.
1875         * doc/invoke.texi (-mlong-double-128, -mlong-double-64): Document
1876         the new options.
1877
1878 2006-02-02  Andrew Pinski  <pinskia@physics.uc.edu>
1879
1880         PR target/25377
1881         * config/i386/i386.c (ix86_function_ok_for_sibcall):
1882         Use targetm.binds_local_p instead of TREE_PUBLIC.
1883
1884 2006-02-02  Roger Sayle  <roger@eyesopen.com>
1885
1886         * tree.h (TYPE_STRING_FLAG): Document that this field may be used
1887         on INTEGER_TYPEs to indicate that it denotes a character type.
1888         * tree.c (build_common_tree_nodes): Set TYPE_STRING_FLAG on
1889         signed_char_type_node, unsigned_char_type_node and char_type_node.
1890         * dwarf2out.c (base_type_die): Treat CHAR_TYPE identically to
1891         INTEGER_TYPE.  Use TYPE_STRING_FLAG to decide whether to emit
1892         a DW_ATE_[un]signed_char instead of a DW_ATE_[un]signed.
1893
1894 2006-02-02  Zdenek Dvorak <dvorakz@suse.cz>
1895             Daniel Berlin  <dberlin@dberlin.org>
1896
1897         * tree-tailcall.c (arg_needs_copy_p): New function.
1898         (eliminate_tail_call): Use arg_needs_copy_p.
1899         (tree_optimize_tail_calls_1): Ditto. Also call add_virtual_phis.
1900         (add_virtual_phis): New function.
1901
1902 2006-02-02  Jakub Jelinek  <jakub@redhat.com>
1903
1904         * config/sparc/sparc.c (sparc_output_scratch_registers): Use
1905         #ignore instead of #scratch for %g7 .register directive.
1906
1907 2006-02-02  Andreas Tobler  <a.tobler@schweiz.ch>
1908
1909         * config/sparc/freebsd.h (ENDFILE_SPEC): Add space to separate
1910         object files.
1911
1912 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
1913
1914         * flow.c (calculate_global_regs_live): Assert that there aren't any
1915         EDGE_FAKE edges.
1916
1917 2006-02-02  Paolo Bonzini  <bonzini@gnu.org>
1918
1919         * tree-flow-inline.h (bsi_after_labels): Rewrite, return
1920         what its name says.
1921         * lambda-code.c (perfect_nestify): Use bsi_insert_before on
1922         bsi_after_labels iterator.
1923         * tree-if-conv.c (find_phi_replacement_condition,
1924         replace_phi_with_cond_modify_expr): Likewise.
1925         * tree-scalar-evolution.c (scev_const_prop): Likewise.
1926         * tree-ssa-loop-ivopts.c (compute_phi_arg_on_exit): Likewise.
1927
1928 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
1929
1930         * tree-inline.c (copy_tree_r): Also copy OMP_CLAUSE nodes.
1931
1932 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
1933
1934         PR 25990
1935         * tree-cfg.c (move_block_to_fn): Clear out the basic block
1936         array after growing it.
1937
1938 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
1939
1940         PR middle-end/24901
1941         * fold-const.c (fold_checksum_tree): Change type of buf.
1942
1943 2006-02-01  Bernd Schmidt  <bernd.schmidt@analog.com>
1944
1945         * reload.c (push_secondary_reload): Initialize t_icode.
1946
1947 2006-02-01  Jakub Jelinek  <jakub@redhat.com>
1948
1949         * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): For
1950         -msoft-float -mlong-double-128 only issue a warning, but don't
1951         swich to DFmode long double.
1952
1953 2006-02-01  Hans-Peter Nilsson  <hp@axis.com>
1954
1955         * cse.c (fold_rtx) <case RTX_COMM_COMPARE, RTX_COMPARE>: When arg1
1956         has a constant equivalent, iterate over equivalents for arg0,
1957         calling simplify_relational_operation and if there's a result
1958         cheaper than X, apply fold_rtx and return the result.
1959
1960 2006-02-01  Jan Hubicka  <jh@suse.cz>
1961
1962         * opts.c (no_unit_at_a_time_default): New global variable.
1963         (decode_options): Use it.
1964         * opts.h (no_unit_at_a_time_default): Declare.
1965
1966 2006-02-01  Paul Brook  <paul@codesourcery.com>
1967
1968         * function.c (assign_parm_setup_reg): Use function argument promotion
1969         rules.
1970         * expr.c (expand_expr_real_1): Use function argument promotion rules
1971         for PARM_DECLs.
1972
1973 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
1974
1975         * gcc.c (process_command): Change j to 'unsigned int'.
1976
1977 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
1978
1979         PR middle-end/26001
1980         * expr.c (expand_expr_real_1) <case ARRAY_REF>:
1981         Use the corrected index for the character
1982         out of the string constant.
1983
1984 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
1985
1986         * mode-switching.c (optimize_mode_switching): Fix size
1987         allocated for bb_info[n_entities].
1988
1989 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
1990
1991         * gcc.c (main): Correct type that is allocated for
1992         explicit_link_files.
1993
1994 2006-01-31  Jakub Jelinek  <jakub@redhat.com>
1995
1996         * config/s390/s390.c (init_alignment_context): Set
1997         ALIAS_SET_MEMORY_BARRIER on the MEM.
1998         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): Likewise.
1999
2000 2006-01-31  Uttam Pawar  <uttamp@us.ibm.com>
2001
2002         PR middle-end/25933
2003         * loop-unroll.c (unroll_loop_runtime_iterations): Free
2004         dom_bbs pointer.
2005         * tree-ssa-live.c (type_var_init): Allocate bitmap after
2006         call to tpa_init.
2007
2008 2006-01-31  Marcin Dalecki  <martin@dalecki.de>
2009
2010         * tree-vrp.c: Use XNEW/XCNEW allocation wrappers.
2011         * regrename.c: Ditto.
2012         * tree-ssa-loop-im.c: Ditto.
2013         * tree-dump.c: Ditto.
2014         * tree-complex.c: Ditto.
2015         * genrecog.c: Ditto.
2016         * tree-ssa-threadupdate.c: Ditto.
2017         * tracer.c: Ditto.
2018         * java/class.c: Ditto.
2019         * java/jcf-parse.c: Ditto.
2020         * java/resource.c: Ditto.
2021         * java/except.c: Ditto.
2022         * java/jvspec.c: Ditto.
2023         * java/jcf-write.c: Ditto.
2024         * java/jcf-path.c: Ditto.
2025         * java/gjavah.c: Ditto.
2026         * java/zextract.c: Ditto.
2027         * java/jcf-io.c: Ditto.
2028         * java/jcf.h: Ditto.
2029         * java/buffer.c: Ditto.
2030         * java/lang.c: Ditto.
2031         * java/parse-scan.y: Ditto.
2032         * java/lex.c: Ditto.
2033         * java/lex.h: Ditto.
2034         * cfgloopmanip.c: Ditto.
2035         * postreload-gcse.c: Ditto.
2036         * tree-ssa-loop-manip.c: Ditto.
2037         * postreload.c: Ditto.
2038         * tree-ssa-loop-ch.c: Ditto.
2039         * loop.c: Ditto.
2040         * ipa-cp.c: Ditto.
2041         * cppspec.c: Ditto.
2042         * diagnostic.c: Ditto.
2043         * final.c: Ditto.
2044         * genoutput.c: Ditto.
2045         * gcc.c: Ditto.
2046         * cfghooks.c: Ditto.
2047         * cfgloopanal.c: Ditto.
2048         * objc/objc-act.c: Ditto.
2049         * gcov.c: Ditto.
2050         * genextract.c: Ditto.
2051         * genautomata.c: Ditto.
2052         * pretty-print.c: Ditto.
2053         * genemit.c: Ditto.
2054         * cgraphunit.c: Ditto.
2055         * flow.c: Ditto.
2056         * df-scan.c: Ditto.
2057         * haifa-sched.c: Ditto.
2058         * dominance.c: Ditto.
2059         * dbxout.c: Ditto.
2060         * tree-ssa-loop-ivopts.c: Ditto.
2061         * df-core.c: Ditto.
2062         * mode-switching.c: Ditto.
2063         * modulo-sched.c: Ditto.
2064         * graph.c: Ditto.
2065         * ipa-pure-const.c: Ditto.
2066         * cse.c: Ditto.
2067         * fix-header.c: Ditto.
2068         * web.c: Ditto.
2069         * tree-stdarg.c: Ditto.
2070         * ipa-utils.c: Ditto.
2071         * loop-init.c: Ditto.
2072         * ipa-inline.c: Ditto.
2073         * cfganal.c: Ditto.
2074         * global.c: Ditto.
2075         * alloc-pool.c: Ditto.
2076         * dwarf2out.c: Ditto.
2077         * opts.c: Ditto.
2078         * genattrtab.c: Ditto.
2079         * tree-ssa-loop-ivcanon.c: Ditto.
2080         * predict.c: Ditto.
2081         * timevar.c: Ditto.
2082         * lcm.c: Ditto.
2083         * fortran/gfortranspec.c: Ditto.
2084         * regmove.c: Ditto.
2085         * local-alloc.c: Ditto.
2086         * langhooks.c: Ditto.
2087         * function.c: Ditto.
2088         * tree-vectorizer.c: Ditto.
2089         * gcse.c: Ditto.
2090         * ipa-type-escape.c: Ditto.
2091         * alias.c: Ditto.
2092         * tree-if-conv.c: Ditto.
2093         * profile.c: Ditto.
2094         * ipa.c: Ditto.
2095         * tree-data-ref.c: Ditto.
2096         * loop-unroll.c: Ditto.
2097         * treelang/treetree.c: Ditto.
2098         * calls.c: Ditto.
2099         * bt-load.c: Ditto.
2100         * ggc-common.c: Ditto.
2101         * except.c: Ditto.
2102         * coverage.c: Ditto.
2103         * cselib.c: Ditto.
2104         * tree-cfgcleanup.c: Ditto.
2105         * tree-ssa-pre.c: Ditto.
2106         * cfgcleanup.c: Ditto.
2107         * loop-invariant.c: Ditto.
2108         * loop-iv.c: Ditto.
2109         * ipa-prop.c: Ditto.
2110         * print-tree.c: Ditto.
2111         * conflict.c: Ditto.
2112         * ggc-page.c: Ditto.
2113         * sched-deps.c: Ditto.
2114         * regclass.c: Ditto.
2115         * tree-object-size.c: Ditto.
2116         * combine.c: Ditto.
2117         * bb-reorder.c: Ditto.
2118         * resource.c: Ditto.
2119         * var-tracking.c: Ditto.
2120         * cfgloop.c: Ditto.
2121         * df-problems.c: Ditto.
2122         * reg-stack.c: Ditto.
2123         * tlink.c: Ditto.
2124         * gccspec.c: Ditto.
2125         * sched-rgn.c: Ditto.
2126         * tree-ssa-structalias.c: Ditto.
2127         * tree-ssa-reassoc.c: Ditto.
2128         * config/darwin-c.c: Ditto.
2129         * config/darwin.c: Ditto.
2130         * config/arm/arm.c: Ditto.
2131         * cfgrtl.c: Ditto.
2132         * collect2.c: Ditto.
2133         * reload1.c: Ditto.
2134
2135 2006-01-31  Nicolas Pitre  <nico@cam.org>
2136
2137         * arm.md (smaxsi3): Make aware of smax_m1.
2138         (smax_m1): New.
2139
2140 2006-01-31  Nathan Sidwell  <nathan@codesourcery.com>
2141
2142         * gcc/config/m68k/lb1sf68.asm: Use moveq to load small constants.
2143
2144 2006-01-31  Richard Guenther  <rguenther@suse.de>
2145
2146         * doc/invoke.texi (-msselibm): Document.
2147         * target.h (expand_library_builtin): New target hook.
2148         * builtins.c (expand_builtin): Use expand_library_builtin.
2149         (default_expand_library_builtin): New function.
2150         * gcc.c (LINK_GCC_MATH_SPEC): Define.
2151         (LINK_COMMAND_SPEC): Handle %(link_gcc_math).
2152         (link_gcc_math_spec): Declare.
2153         (static_specs): Add link_gcc_math_spec.
2154         * expr.h (default_expand_library_builtin): Declare.
2155         * target-def.h (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
2156         (TARGET_INITIALIZER): Add TARGET_EXPAND_LIBRARY_BUILTIN.
2157         * config/i386/i386.h: Provide LINK_GCC_MATH_SPEC.
2158         * config/i386/i386.opt (msselibm): New target option.
2159         * config/i386/i386.c (ix86_builtin_function_variants): New array.
2160         (ix86_init_sse_abi_builtins): New function.
2161         (ix86_expand_library_builtin): Likewise.
2162         (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
2163         (override_options): Handle error conditions wrt -msselibm.
2164         (ix86_builtins): Add function codes for SSE2 ABI builtins.
2165         (ix86_init_builtins): Call ix86_init_sse_abi_builtins.
2166         * doc/extend.texi (__builtin_sse2_*): Document new target specific
2167         builtins.
2168
2169 2006-01-31  Richard Guenther  <rguenther@suse.de>
2170         Paolo Bonzini  <bonzini@gnu.org>
2171
2172         * doc/install.texi (--disable-libgcc-math): Document.
2173
2174 2006-01-30  Marcin Dalecki  <martin@dalecki.de>
2175
2176         * expr.h (expand_normal): new inline function.
2177         * builtins.c: use it, use EXPAND_NORMAL explicitely.
2178         * dojump.c: use it.
2179         * dwarf2out.c: use it.
2180         * expr.c: use it.
2181         * calls.c: use it.
2182         * expmed.c: use it.
2183         * except.c: use it.
2184         * config/sparc/sparc.c: use it.
2185         * config/i386/i386.c: use it.
2186         * config/rs6000/rs6000.c: use it.
2187         * config/arm/arm.c: use it.
2188         * config/mips/mips.c: use it.
2189         * stmt.c: use it, use EXPAND_NORMAL explicitely.
2190
2191 2006-01-30  Roger Sayle  <roger@eyesopen.com>
2192
2193         * config/i386/cygwin.h (GCC_DRIVER_HOST_INITIALIZATION): Cast
2194         argv to the appropriate type.
2195
2196 2006-01-30  Zdenek Dvorak <dvorakz@suse.cz>
2197
2198         * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Remove
2199         unreachable code.
2200
2201 2006-01-30  Ulrich Weigand  <uweigand@de.ibm.com>
2202
2203         PR target/26018
2204         * config/s390/s390.c (struct machine_function): New flag
2205         decomposed_literal_pool_addresses_ok_p.
2206         (s390_reorg): Set it before final stage of literal pool transforms.
2207         (s390_decompose_address): Only accept displacements of the form
2208         (minus (label_ref ...) (label_ref ...)) if that flag is set.
2209
2210 2006-01-30  Carlos O'Donell  <carlos@codesourcery.com>
2211
2212         * optabs.c (prepare_cmp_insn): If unbaised and unsigned then bias
2213         the comparison routine return.
2214
2215 2006-01-30  Michael Matz  <matz@suse.de>
2216
2217         * global.c (find_reg): Only evict for global regs.
2218         Take n_refs into account and dump more info.
2219
2220 2006-01-30  J"orn Rennecke <joern.rennecke@st.com>
2221
2222         PR target/14798:
2223         * sh.c (pragma_interrupt, trap_exit, sp_switch): Remove variable.
2224         (pragma_trap, pragma_nosave_low_regs): Likewise.
2225         (current_function_anonymous_args): Likewise.
2226         (sh_deferred_function_attributes): New variable.
2227         (sh_deferred_function_attributes_tail): Likewise.
2228         (print_operand): For '@', look up trap_exit attribute.
2229         (calc_live_regs): Look up trapa_handler attribute.  For trapa
2230         handlers, save/restore fpscr, but don't do any other
2231         interrupt-specific saves.
2232         Don't save r0..r7 if the nosave_low_regs attribute is in effect.
2233         Fix check for partially saved registers to check for SHmedia.
2234         (sh_expand_prologue, sh_expand_epilogue): Look up sp_switch attribute.
2235         (sh_output_function_epilogue): Don't clear any of the removed
2236         variables.
2237         (sh_insert_attributes): Don't check pragma_interrupt.
2238         Insert deferred attributes.  Check that interrupt attribute is
2239         present for other attributes that require its presence.
2240         (sh_attribute_table): Add new attributes trapa_handler and
2241         nosave_low_regs.
2242         (sh_handle_sp_switch_attribute, sh_handle_trap_exit_attribute):
2243         Don't check for pragma_interrupt.  Don't store argument.
2244         * sh.h (pragma_interrupt, sp_switch): Don't declare.
2245         (sh_deferred_function_attributes): Declare.
2246         (sh_deferred_function_attributes_tail): Likewise.
2247         * sh.md (sp_switch_1): Add operand.  Change generator caller.
2248         (sh_pr_interrupt, sh_pr_trapa, sh_pr_nosave_low_regs): Remove.
2249         (*return_i): Don't use when trap_exit attribute is in effect.
2250         (*return_trapa): New insn pattern.
2251         * sh-c.c: New file.
2252         * config.gcc (sh[123456ble]*-* | sh-*-*): New trailer stanza,
2253         setting c_target_objs and cxx_target_objs.
2254         * t-sh: Add rule for sh-c.o.
2255
2256 2006-01-30  Richard Guenther  <rguenther@suse.de>
2257
2258         PR c++/23372
2259         * gimplify.c (gimplify_target_expr): Handle easy cases
2260         without creating a temporary.
2261
2262 2006-01-30  Nathan Sidwell  <nathan@codesourcery.com>
2263
2264         * vec.h (safe_grow): Remove duplicated line.
2265
2266 2006-01-29  Diego Novillo  <dnovillo@redhat.com>
2267
2268         PR 25874
2269         * omp-low.c (execute_expand_omp): Move CFG cleanup code ...
2270         (expand_omp): ... here.
2271         (expand_omp_parallel): Only remove barriers for combined
2272         parallel+workshare constructs.
2273
2274 2006-01-29  Eric Botcazou  <ebotcazou@adacore.com>
2275
2276         Revert
2277
2278         2005-11-09  Eric Botcazou  <ebotcazou@adacore.com>
2279         * tree.c (build_qualified_type): Chain the new type to the original
2280         type's TYPE_NEXT_PTR_TO or TYPE_NEXT_REF_TO linked lists if it is
2281         a POINTER_TYPE or a REFERENCE_TYPE respectively.
2282         (build_pointer_type_for_mode): Only return unqualified types.
2283         (build_reference_type_for_mode): Likewise.
2284
2285 2006-01-29  Gabriel Dos Reis  <gdr@integgrable-solutions.net>
2286
2287         * configure.ac (cxx_compat_warn): Set if -Wc++-compat is supported.
2288         * Makefile.in (CXX_COMPAT_WARN): Define.
2289         * configure: Regenerate.
2290
2291 2006-01-29  Dorit Nuzman  <dorit@il.ibm.com>
2292
2293         PR tree-opt/25911
2294         * tree-vect-patterns.c (vect_recog_dot_prod_pattern): Change assert
2295         to an if check.
2296
2297 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
2298
2299         * toplev.c: Fix thinko.
2300
2301 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
2302             Marcin Dalecki  <martin@dalecki.de>
2303
2304         * toplev.c (floor_log2, exact_log2): Don't define if __cplusplus.
2305         (push_srcloc): Use XNEW.
2306         (init_asm_output, default_get_pch_validity): Use XNEWVEC.
2307
2308 2006-01-29  Kenneth Zadeck <zadeck@naturalbridge.com>
2309
2310         * df-core.c (df_set_blocks): Deleted all variable.
2311
2312 2006-01-28  Ian Lance Taylor  <ian@airs.com>
2313
2314         * cgraphunit.c (cgraph_assemble_pending_functions): Call
2315         cgraph_output_pending_asms.
2316
2317 2006-01-28  Zack Weinberg  <zackw@panix.com>
2318
2319         * c.opt: Add -W(no-)overlength-strings.
2320         * doc/invoke.texi: Document it.
2321         * c-opts.c (c_common_handle_option): -pedantic implies
2322         -Woverlength-strings, if not explicitly disabled already.
2323         (c_common_post_options): -Woverlength-strings defaults to off, and
2324         is always off for C++.
2325         * c-common.c (fix_string_type): Issue warning about strings longer
2326         than is portable only if warn_overlength_strings.  Rearrange code
2327         a little for clarity.
2328         * configure.in: Check for -Wno-overlength-strings as well before
2329         enabling -pedantic in stage 1.
2330         * Makefile.in (STRICT2_WARN): Add -Wno-overlength-strings.
2331         (gcc.o-warn, insn-automata.o-warn, build/gencondmd.o-warn): Delete.
2332
2333         * genconditions.c (write_header, write_one_condition)
2334         (write_conditions, write_writer): Consolidate very long strings
2335         that were broken up to fit in C89 portable limit.  Don't use
2336         printf when fputs will do.
2337
2338 2006-01-28  Adam Nemet  <anemet@caviumnetworks.com>
2339
2340         * combine.c (simplify_comparison <AND>): Check
2341         TRULY_NOOP_TRUNCATION before start using a subreg.
2342
2343         * config/mips/mips.md (*branch_zero<mode>,
2344         *branch_zero<mode>_inverted, *branch_equality<mode>,
2345         *branch_equality<mode>_inverted, *branch_equality<mode>_mips16):
2346         Remove mode check from comparisons.
2347
2348 2006-01-28  Kenneth Zadeck <zadeck@naturalbridge.com>
2349
2350         * config/mips/mips-protos.h (mips_set_live_on_entry): Deleted.
2351
2352 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
2353
2354         * expmed.c (const_mult_add_overflow_p): Remove.
2355         * expr.h: Remove the prototype for const_mult_add_overflow_p.
2356
2357         * recog.c (validate_replace_rtx_subexp): Remove.
2358         * recog.h: Remove the prototype for
2359         validate_replace_rtx_subexp.
2360
2361         * integrate.h: Remove the prototype for
2362         copy_decl_for_inlining.
2363         * rtl.h: Remove the prototype for mark_constant_function.
2364         * tree-vectorizer.h: Remove the prototype for
2365         vect_strip_conversion.
2366
2367         * modulo-sched.c (create_partial_schedule,
2368         free_partial_schedule, reset_partial_schedule): Make them
2369         static.
2370
2371         * hooks.c (hook_bool_rtx_int_false): Remove.
2372         * hooks.h: Remove the prototype for hook_bool_rtx_int_false.
2373
2374 2006-01-28  David Edelsohn  <edelsohn@gnu.org>
2375
2376         * config/rs6000/aix43.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
2377         and -mlong-double-128 are incompatible.
2378         * config/rs6000/aix52.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
2379         * config/rs6000/t-aix43 (LIB2FUNCS_EXTRA): Add ppc64-fp.c.
2380         (TARGET_LIBGCC2_CFLAGS): Define.
2381         * config/rs6000/t-aix52 (LIB2FUNCS_EXTRA): Same.
2382         (TARGET_LIBGCC2_CFLAGS): Same.
2383         * config/rs6000/ppc64-fp.c: Compile for 64-bit AIX.
2384
2385 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
2386
2387         PR c/19606.
2388         * c-typeck.c (build_binary_op): Perform implicit casts of
2389         operands before shortening them.
2390
2391         * cfgloopmanip.c (split_loop_bb): Remove.
2392         * cfgloop.h: Remove the prototype for split_loop_bb.
2393
2394         * cfgloop.c (flow_loop_outside_edge_p): Remove.
2395         * cfgloop.h: Remove the prototype for
2396         flow_loop_outside_edge_p.
2397
2398         * emit-rtl.c (init_virtual_regs): Make it static.
2399         * function.h: Remove the prototype for init_virtual_regs.
2400
2401         * recog.c (peephole2_optimize): Make it static.
2402         * recog.h: Remove the prototype for peephole2_optimize.
2403
2404 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
2405
2406         * df-scan.c (df_record_entry_block_defs): Check if
2407         INCOMING_RETURN_ADDR_RTX is defined.
2408
2409 2006-01-27  Daniel Berlin  <dberlin@dberlin.org>
2410             Kenneth Zadeck <zadeck@naturalbridge.com>
2411
2412         PR rtl-optimization/24762
2413         * doc/tm.texi: Added TARGET_EXTRA_LIVE_ON_ENTRY.
2414         * targhooks.c (hook_void_bitmap): New hook prototype.
2415         * targhoohs.h (hook_void_bitmap): Ditto.
2416         * bitmap.h (bitmap_head_def): Moved to coretypes.h.
2417         * coretypes.h (bitmap_head_def): Moved from bitmap.h.
2418         * target.h (live_on_entry): New function pointer.
2419         * df-scan.c (df_all_hard_regs): Removed.
2420         (df_scan_dump, df_hard_reg_init): Removed df_all_hard_regs.
2421         (df_scan_free_internal): Added df->entry_block_defs.
2422         (df_scan_alloc): Ditto.
2423         (df_scan_dump): Ditto.
2424         (df_uses_record): Plumbed flag field properly thru calls.
2425         Record EH_RETURN_DATA_REGNO in eh blocks unconditionally.
2426         This part fixes PR24762.
2427         (df_bb_refs_record): Added code to make the frame and arg
2428         pointers live in EH blocks.
2429         (df_refs_record): Added call to df_record_entry_block_defs.
2430         (df_record_entry_block_defs): New function.
2431         * df-core.c: Added comments to describe new artifical defs.
2432         * df.h (DF_REF_DIES_AFTER_THIS_USE): New flag in enum df_ref_flags.
2433         (entry_block_defs): New field in struct df.
2434         (df_all_hard_regs): Deleted.
2435         * target-def.h: Added TARGET_EXTRA_LIVE_ON_ENTRY.
2436         * df-problems.c (df_ru_bb_local_compute_process_def):
2437         Added code to handle artifical defs in the entry to a function.
2438         (df_ru_bb_local_compute): Ditto.
2439         (df_rd_bb_local_compute_process_def):  Ditto.
2440         (df_rd_bb_local_compute): Ditto.
2441         (df_lr_bb_local_compute): Ditto.
2442         (df_ur_bb_local_compute): Ditto.
2443         (df_urec_bb_local_compute):  Ditto.
2444         (df_chain_create_bb):  Ditto.
2445         (df_ur_local_finalize): Removed entry.
2446         (df_urec_init): Ditto.
2447         (df_urec_local_finalize): Ditto.
2448         (df_ri_bb_compute): Added detection of last use of pseudos.
2449         * Makefile.in (df-scan.o): Updated dependencies.
2450         * config/mips/mips-protos.h (mips_set_live_on_entry): Added.
2451         * config/mips/mips.c (mips_set_live_on_entry): Added.
2452         * config/mips/mips.c (TARGET_EXTRA_LIVE_ON_ENTRY): Added value
2453         for target hook.
2454         * dce.c (marked_insn_p): Added code to handle artifical defs.
2455
2456 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
2457
2458         * config/i386/emmintrin.h (_mm_cvtsd_f64): Add missing Intel
2459         intrinsic.
2460         (_mm_cvtsi128_si64): Likewise.
2461         (_mm_cvtsd_si64): Likewise.
2462         (_mm_cvttsd_si64): Likewise.
2463         (_mm_cvtsi64_sd): Likewise.
2464         (_mm_cvtsi64_si128): Likewise.
2465         * config/i386/mmintrin.h (_m_from_int64): Likewise.
2466         (_mm_cvtsi64_m64): Likewise.
2467         (_m_to_int64): Likewise.
2468         (_mm_cvtm64_si64): Likewise.
2469         * config/i386/xmmintrin.h (_mm_cvtss_si64): Likewise.
2470         (_mm_cvttss_si64): Likewise.
2471         (_mm_cvtsi64_ss): Likewise.
2472         (_mm_cvtss_f32): Likewise.
2473
2474 2006-01-27  Carlos O'Donell  <carlos@codesourcery.com>
2475
2476         * c-pragma.c (init_pragma) : Call c_register_pragma_with_expansion
2477         for pragma redefine_extname.
2478
2479 2006-01-27  Jakub Jelinek  <jakub@redhat.com>
2480
2481         PR target/25864
2482         * libgcc-std.ver: Add GCC_4.1.0 symbol version.
2483         * config/rs6000/t-linux64 (TARGET_LIBGCC2_CFLAGS): Only append
2484         -mno-minimal-toc to previous content.
2485         (bispecs): Remove goal.
2486         * config/rs6000/ppc64-fp.c: Define TMODES before including fp-bit.h.
2487         * config/rs6000/darwin-ldouble.c: Don't provide _xlq*@GCC_3.4
2488         compatibility aliases on powerpc-*-*gnu*.
2489         * config/rs6000/libgcc-ppc-glibc.ver: New file.
2490         * config/rs6000/t-ppccomm (SHLIB_MAPFILES): Append
2491         libgcc-ppc-glibc.ver on powerpc*-*-*gnu*.
2492         (TARGET_LIBGCC2_CFLAGS): Append -specs=ldblspecs.
2493         (ldblspecs): New goal.
2494         * config/rs6000/t-linux64 (SHLIB_MAPFILES): Removed.
2495         * mklibgcc.in: If $TPBIT is empty, don't compile _sf_to_tf and
2496         _df_to_tf.
2497         * config/fp-bit.h (TMODES): Don't define if none of TFLOAT,
2498         L_sf_to_tf or L_df_to_tf is defined.
2499
2500 2006-01-27  David Edelsohn  <edelsohn@gnu.org>
2501             Alan Modra  <amodra@bigpond.net.au>
2502
2503         PR target/25864
2504         * config/rs6000/linux.h (POWERPC_LINUX): Define.
2505         * config/rs6000/linux64.h (POWERPC_LINUX): Define.
2506         * config/rs6000/darwin-ldouble.c: Build on 32-bit PowerPC.
2507         * config/rs6000/darwin.h (TARGET_IEEEQUAD): Define to zero.
2508         * config/rs6000/aix.h (TARGET_IEEEQUAD): Define to zero.
2509         * config/rs6000/rs6000.c (rs6000_ieeequad): New variable.
2510         (rs6000_override_options): Initialize rs6000_ieeequad.
2511         Initialize TFmode format to ibm_extended_format if not
2512         TARGET_IEEEQUAD.
2513         (rs6000_handle_option): Accept -mabi= ibmlongdouble and
2514         ieeelongdouble.
2515         (rs6000_emit_move): Move !TARGET_IEEEQUAD as two parts.
2516         (rs6000_return_in_memory): Only return IEEEQUAD in memory.
2517         (function_arg_advance): IBM long double passed in two FPRs, not
2518         split.
2519         (function_arg): IBM long double passed in FPRs.
2520         (rs6000_pass_by_reference): Only IEEEQUAD passed by reference.
2521         (rs6000_gimplify_va_arg): IBM long double passed in two FPRs.
2522         Only multireg GPR aligned.
2523         (rs6000_init_libfuncs): Enable IBM long double functions if not
2524         IEEEQUAD.
2525         (rs6000_generate_compare): Use IBM long double compare if not
2526         TARGET_IEEEQUAD.
2527         * config/rs6000/rs6000.h (rs6000_ieeequad): Declare.
2528         (TARGET_IEEEQUAD): Define.
2529         (CANNOT_CHANGE_MODE_CLASS): Any mode larger than doubleword if
2530         not TARGET_IEEEQUAD.
2531         * config/rs6000/rs6000.md: Enable TFmode patterns if
2532         !TARGET_IEEEQUAD.
2533         * config/rs6000/t-ppccomm (LIB2FUNCS_EXTRA): Add darwin-ldouble.c.
2534         * config/rs6000/svr4.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
2535         and -mlong-double-128 are incompatible.
2536         * doc/invoke.texi (-mabi): Collect options together.  Add
2537         ibmlongdouble and ieeelongdouble.
2538
2539 2006-01-27  Richard Sandiford  <richard@codesourcery.com>
2540
2541         * doc/rtl.texi (SYMBOL_REF_DATA): Adjust documentation for new
2542         opaque type.
2543         * optabs.c (init_one_libfunc): Use SET_SYMBOL_REF_DECL.
2544         * varasm.c (make_decl_rtl, build_constant_desc): Likewise.
2545         (force_const_mem): Use SET_SYMBOL_REF_CONSTANT.
2546         * rtl.h (rtunion_def): Remove rt_ptr.
2547         (X0PTR): Delete.
2548         (SYMBOL_REF_DATA): Use X0ANY instead of X0PTR.
2549         (SET_SYMBOL_REF_DECL, SET_SYMBOL_REF_CONSTANT): New macros.
2550         * config/i386/winnt.c (i386_pe_mark_dllexport)
2551         (i386_pe_mark_dllimport): Use SET_SYMBOL_REF_DECL.
2552
2553 2006-01-27 Gabor Loki <loki@gcc.gnu.org>
2554
2555         * cfgcleanup.c (try_crossjump_to_edge): Fix comment typo.
2556
2557 2006-01-26 Alexandre Oliva  <aoliva@redhat.com>
2558
2559         PR other/24829
2560         PR target/24831
2561         * gthr-dce.h: Do not gthrw-ify pthread_once_init,
2562         pthread_key_delete.  From John David Anglin.  gthrw-ify
2563         pthread_getunique_np only if it it's not a macro.  Delete
2564         UNUSED macro.
2565         (__gthread_objc_condition_allocate, __gthread_objc_condition_deallocate,
2566         __gthread_objc_condition_wait, __gthread_objc_condition_broadcast,
2567         __gthread_objc_condition_signal, __gthread_key_delete): Add
2568         "__attribute__ ((__unused__))" to unused arguments.
2569         (__gthread_recursive_mutex_init_function): Add missing return.
2570         * gthr-dce.h, gthr-tpf.h, gthr-solaris.h, gthr-posix.h,
2571         gthr-posix95.h: Use macro-based approach for name redirection
2572         on targets missing weakref.
2573
2574 2006-01-26  Zack Weinberg  <zackw@panix.com>
2575
2576         * genconditions.c (write_header): In generated code, #ifdef out
2577         all includes and fake declarations, except includes of bconfig.h
2578         and system.h, unless GCC_VERSION >= 3001.  Do not include
2579         gensupport.h in any case.
2580         (write_conditions): Generate a definition of struct c_test.  Add
2581         a comment to the generated #endif.
2582         (write_one_condition): Escape backslashes in string too.
2583         (write_writer): Generated code must escape backslashes and quote
2584         marks (but not newlines) in the strings it writes.
2585         * Makefile.in (build/gencondmd.o): Update dependencies.
2586
2587 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
2588
2589         PR target/25961
2590         * Makefile.in (insn-automata.o): Add header file dependencies.
2591         * genautomata.c: Add includes.
2592
2593 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
2594
2595         PR target/25961
2596         * Makefile.in (insn-automata.o): Add -Wno-error flag.
2597
2598 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
2599
2600         * configure.ac: Expect target tools paths to be passed from the toplevel
2601         and wrap the detection into AS_SET_VAR_IF.  Extract side-effects out of
2602         AS_SET_VAR_IF.
2603         * acinclude.m4 (gcc_AC_TOOL_DIRS, gcc_AC_CHECK_TOOL): Remove.
2604
2605 2006-01-26  Alexandre Oliva  <aoliva@redhat.com>
2606
2607         PR c/25892
2608         * c.opt (Wpointer-sign): Init to -1.
2609         * c-opts.c (c_common_handle_option): Set to 1 on OPT_Wall and
2610         OPT_pedantic, to 0 otherwise.
2611         * doc/invoke.texi: Update.
2612
2613 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
2614
2615         * config/i386/i386.md (extendsfdf2, extendsfxf2, extenddfxf2): Emit
2616         constants provided by 80387 instructions in the destination mode.
2617
2618 2006-01-26  Richard Guenther  <rguenther@suse.de>
2619             Andrew Pinski  <pinskia@physics.uc.edu>
2620
2621         PR tree-opt/21470
2622         partial PR tree-opt/17064
2623         * tree-ssa-structalias.c (intra_create_variable_infos):
2624         Create heap variables for incoming parameters if
2625         flag_argument_noalias > 1.
2626         (find_what_p_points_to): Look through default defs of
2627         parameter decls.
2628
2629 2006-01-26  Jeff Law  <law@redhat.com>
2630
2631         PR ada/25900
2632         * tree-vrp.c (extract_range_from_assert): When merging a VR_RANGE
2633         with a VR_ANTI_RANGE and the VR_ANTI_RANGE is completely contained
2634         within the VR_RANGE, use the VR_RANGE as the result, not the
2635         VR_ANTI_RANGE.
2636         (adjust_range_with_scev): Reject ranges from SCEV which are out of
2637         bounds for the type.
2638
2639 2006-01-26  Daniel Berlin  <dberlin@dberlin.org>
2640
2641         * tree-ssa-alias.c (maybe_create_global_var): Change
2642         subvar walking to an assertion that we don't have subvar'd variables.
2643
2644 2006-01-26  Andrew Pinski  <pinskia@physics.uc.edu>
2645
2646         PR C/25861
2647         * c-common.c (c_common_truthvalue_conversion) <case ADDR_EXPR>:
2648         Use a new variable, inner.  PARM_DECLs are always non-weak.
2649
2650 2006-01-26  Shantonu Sen  <ssen@opendarwin.org>
2651
2652         * tree.h (OMP_CLAUSE_SUBCODE_CHECK): Add definition for
2653         --disable-checking.
2654
2655 2006-01-26  Adam Nemet  <anemet@caviumnetworks.com>
2656
2657         * config/mips/mips.md (*clear_upper32): New combiner pattern.
2658
2659 2006-01-26  Richard Earnshaw  <richard.earnshaw@arm.com>
2660
2661         * arm.md (smaxsi3, sminsi3): Convert to define_expand.
2662         (smax_insn, smin_insn, smax_0, smin_0): New.
2663
2664 2006-01-26  Hans-Peter Nilsson  <hp@axis.com>
2665
2666         PR target/25947
2667         * config/cris/cris.c (cris_order_for_addsi3): New function.
2668         * config/cris/cris-protos.h: Prototype it.
2669         * config/cris/cris.md (split for "move.S1 [rx=rx+i],ry")
2670         (split for "move.S1 ry,[rx=rx+i]", split for "clear.[bwd] [rx=rx+i]")
2671         (split for "mov(s|u).S1 [rx=rx+i],ry", split for "op.S1 [rx=rx+i],ry")
2672         (split for "op.S1 [rx=rx+i],ry (swapped)")
2673         (split for "op(s|u).S1 [rx=rx+i],ry")
2674         (split for "op(s|u).S1 [rx=rx+i],ry (swapped, plus or bound)"):
2675         Apply cris_order_for_addsi3 when generating addsi3 insns.
2676
2677 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
2678
2679         * tree.h (TREE_RANGE_CHECK): Fix range predicate.
2680         (TREE_BLOCK): Add call to EXPR_CHECK.
2681
2682 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
2683
2684         PR 25886
2685         * tree-dump.c (dequeue_and_dump): Handle OMP_CLAUSE.
2686         * tree-pretty-print.c (dump_omp_clause): Extract from ...
2687         (dump_omp_clauses): ... here.
2688         (dump_generic_node): Handle OMP_CLAUSE.
2689         * tree.c (omp_clause_num_ops): New.
2690         (omp_clause_code_name): New.
2691         (tree_code_size): Handle OMP_CLAUSE.
2692         (tree_size): Likewise.
2693         (make_node): Document handling of OMP_CLAUSE.
2694         (tree_node_structure): Handle OMP_CLAUSE.
2695         (omp_clause_check_failed): New.
2696         (omp_clause_range_check_failed): New.
2697         (omp_clause_operand_check_failed): New.
2698         (build_omp_clause): New.
2699         (walk_tree): Adjust handling of OMP_CLAUSE_* nodes.
2700         * tree.h (enum omp_clause_code): Declare.
2701         (OMP_CLAUSE_SUBCODE_CHECK): Define.
2702         (OMP_CLAUSE_RANGE_CHECK): Define.
2703         (OMP_CLAUSE_ELT_CHECK): Define.
2704         (omp_clause_check_failed): Declare.
2705         (omp_clause_operand_check_failed): Declare.
2706         (omp_clause_range_check_failed): Declare.
2707         (OMP_CLAUSE_CHAIN): Do not use TREE_RANGE_CHECK.
2708         (OMP_CLAUSE_OPERAND): Use OMP_CLAUSE_RANGE_CHECK.
2709         (OMP_CLAUSE_PRIVATE_DEBUG): Use OMP_CLAUSE_SUBCODE_CHECK.
2710         (OMP_CLAUSE_LASTPRIVATE): Likewise.
2711         (OMP_CLAUSE_IF_EXPR): Likewise.
2712         (OMP_CLAUSE_NUM_THREADS_EXPR): Likewise.
2713         (OMP_CLAUSE_SCHEDULE_CHUNK_EXPR): Likewise.
2714         (OMP_CLAUSE_REDUCTION_CODE): Likewise.
2715         (OMP_CLAUSE_REDUCTION_INIT): Likewise.
2716         (OMP_CLAUSE_REDUCTION_MERGE): Likewise.
2717         (OMP_CLAUSE_REDUCTION_PLACEHOLDER): Likewise.
2718         Use tree_node.omp_clause.subcode instead of TREE_COMPLEXITY.
2719         (OMP_CLAUSE_SCHEDULE_KIND): Likewise.
2720         (OMP_CLAUSE_DEFAULT_KIND): Likewise.
2721         (OMP_CLAUSE_CODE): Define.
2722         (OMP_CLAUSE_SET_CODE): Define.
2723         (OMP_CLAUSE_CODE): Define.
2724         (OMP_CLAUSE_OPERAND): Define.
2725         (struct tree_omp_clause): Declare.
2726         (union tree_node): Add field 'omp_clause'.
2727         * treestruct.def (TS_OMP_CLAUSE): Define.
2728         * tree.def (OMP_CLAUSE_PRIVATE, OMP_CLAUSE_SHARED
2729         OMP_CLAUSE_FIRSTPRIVATE, OMP_CLAUSE_LASTPRIVATE,
2730         OMP_CLAUSE_REDUCTION, OMP_CLAUSE_COPYIN,
2731         OMP_CLAUSE_COPYPRIVATE, OMP_CLAUSE_IF,
2732         OMP_CLAUSE_NUM_THREADS, OMP_CLAUSE_SCHEDULE,
2733         OMP_CLAUSE_NOWAIT, OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Remove.
2734         (OMP_CLAUSE): Define.
2735         * print-tree.c (print_node): Handle OMP_CLAUSE.
2736         * omp-low.c: Adapt all uses of OMP_CLAUSE_* nodes.
2737         * c-typeck.c: Likewise.
2738         * gimplify.c: Likewise.
2739         * c-omp.c: Likewise.
2740         * tree-nested.c: Likewise.
2741         * tree-inline.c: Likewise.
2742         * c-parser.c: Likewise.
2743         * gimple-low.c (lower_omp_directive): Do not set TREE_BLOCK on
2744         clauses.
2745
2746 2006-01-25  Roger Sayle  <roger@eyesopen.com>
2747
2748         PR rtl-optimization/25703
2749         * combine.c (try_combine): Handle zero_extract and strict_low_part
2750         of non-lowpart SUBREGs for constant reg_subword_p set optimization.
2751
2752 2006-01-25  Peter Bergner  <bergner@vnet.ibm.com>
2753
2754         * global.c: Fix comment typos.
2755
2756 2006-01-25  Andrew Pinski  <pinskia@physics.uc.edu>
2757
2758         PR target/25758
2759         * config/i386/i386.c (output_pic_addr_const) <case SYMBOL_REF>:
2760         Use output_addr_const instead of assemble_name.
2761
2762 2006-01-25  Paolo Bonzini  <bonzini@gnu.org>
2763
2764         * Makefile.in (sched-vis.o): Update dependencies.
2765         * haifa-sched.c (sched_finish): Clear current_sched_info.
2766         * cfg.c (dump_bb_info): New, split from dump_flow_info.
2767         (dump_flow_info): Call it.
2768         * passes.c (execute_todo): Call print_rtl_slim_with_bb to make
2769         a slim RTL dump.
2770         * basic-block.h (dump_bb_info): Declare.
2771         * tree-dump.c (dump_enable_all): OR the flags of a -fdump-tree-all
2772         option, and apply options only for dump files whose TDF_RTL,
2773         TDF_TREE, or TDF_IPA bits match.
2774         * rtl.h: Declare new functions exported from sched-vis.c.
2775         * sched-vis.c: Enable also if scheduling is not used.
2776         (print_value): Print the mode of registers if not inside scheduling.
2777         (print_insn): Make it work outside the scheduler.  Beautify the output
2778         a bit.
2779         (dump_insn_slim, debug_insn_slim, print_rtl_slim_with_bb): New.
2780
2781 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
2782
2783         * doc/rtl.texi (SYMBOL_REF_CONSTANT, SYMBOL_REF_DATA): Document.
2784         * gengtype.c (adjust_field_rtx_def): Garbage-collect field 2 of
2785         a SYMBOL_REF as either a tree or a constant_descriptor_rtx,
2786         depending on the value of CONSTANT_POOL_ADDRESS_P.
2787         * optabs.c (init_one_libfunc): Nullify SYMBOL_REF_DATA rather than
2788         SYMBOL_REF_DECL.
2789         * varasm.c (make_decl_rtl, build_constant_desc): Set SYMBOL_REF_DATA
2790         rather than SYMBOL_REF_DECL.
2791         (rtx_constant_pool): Remove const_rtx_sym_htab.
2792         (const_desc_rtx_sym_hash, const_desc_rtx_sym_eq): Delete.
2793         (init_varasm_status): Don't initialize const_rtx_sym_htab.
2794         (force_const_mem): Point SYMBOL_REF_DATA to the constant pool entry.
2795         Remove handling of const_rtx_sym_htab.
2796         (find_pool_constant): Delete.
2797         (get_pool_constant, get_pool_constant_mark): Use SYMBOL_REF_CONSTANT
2798         rather than find_pool_constant.
2799         (get_pool_constant_for_function): Delete.
2800         (get_pool_mode, mark_constant): Use SYMBOL_REF_CONSTANT rather than
2801         find_pool_constant.
2802         * rtl.h (rtunion_def): Add rt_constant and rt_ptr fields.
2803         (X0CONSTANT, X0PTR, SYMBOL_REF_DATA): New macros.
2804         (SYMBOL_REF_DECL): Return NULL if CONSTANT_POOL_ADDRESS_P.
2805         (SYMBOL_REF_CONSTANT): New macro.
2806         (get_pool_constant_for_function): Delete.
2807         * config/i386/winnt.c (i386_pe_mark_dllexport): Set SYMBOL_REF_DATA
2808         rather than SYMBOL_REF_DECL.
2809         (i386_pe_mark_dllimport): Likewise.
2810         * config/rs6000/rs6000.c (rs6000_emit_move): Copy SYMBOL_REF_DATA
2811         rather than SYMBOL_REF_DECL.
2812         * config/darwin.c (machopic_indirect_data_reference): Likewise.
2813         (machopic_indirect_call_target): Likewise.
2814
2815 2006-01-25  Eric Botcazou  <ebotcazou@adacore.com>
2816
2817         * flow.c (delete_noop_moves): Add missing EOL to dump message.
2818
2819 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
2820
2821         * genattrtab.c (gen_bypass): Allow bypasses to contain whitespace.
2822
2823 2006-01-25  Kaz Kojima  <kkojima@gcc.gnu.org>
2824
2825         * config/sh/predicates.md (sh_register_operand): Accept CONST_DOUBLE.
2826
2827 2006-01-24  David Daney  <ddaney@avtrex.com>
2828
2829         PR java/25816
2830         * configure.ac (enable_tls): New enable option.
2831         (HAVE_AS_TLS): Don't do assembler check if enable_tls set.
2832         * configure: Regenerate.
2833         * doc/install.texi (--enable-tls): Document new option.
2834         (--disable-tls): Ditto.
2835
2836 2006-01-24  Richard Henderson  <rth@redehat.com>
2837
2838         * alias.h (ALIAS_SET_MEMORY_BARRIER): New.
2839         * alias.c (true_dependence): Respect it.
2840         (canon_true_dependence, write_dependence_p): Likewise.
2841         * builtins.c (get_builtin_sync_mem): Set it.
2842
2843 2006-01-25  Zdenek Dvorak <dvorakz@suse.cz>
2844
2845         * loop-iv.c (iv_analysis_loop_init): Use df analysis in a more
2846         efficient way.
2847
2848 2006-01-24  DJ Delorie  <dj@redhat.com>
2849
2850         * expmed.c (store_bit_field): Don't arbitrarily deny using insv
2851         for storing constants in single-bit bitfields.
2852
2853 2006-01-25  Ben Elliston  <bje@au.ibm.com>
2854
2855         * dfp.c (dfp_byte_swap): Use uint32_t and not unsigned long.
2856
2857 2006-01-24  Andrew Pinski  <pinskia@physics.uc.edu>
2858
2859         PR tree-opt/25860
2860         * tree-ssa-pre.c (phi_translate): Return NULL
2861         for AGGREGATE_TYPE's.
2862
2863 2006-01-24  Zack Weinberg  <zackw@panix.com>
2864
2865         * genautomata.c (process_state_for_insn_equiv_partition):
2866         Use xcalloc for insn_arcs_array.
2867         * vec.h (DEF_VEC_ALLOC_FUNC_I): New set of templates.
2868         (DEF_VEC_ALLOC_I): Use it, not DEF_VEC_ALLOC_FUNC_P.
2869
2870 2006-01-24  Richard Henderson  <rth@redhat.com>
2871
2872         * genextract.c (VEC_safe_set_locstr): Take VEC by reference;
2873         update all callers.
2874
2875 2006-01-23  Paolo Bonzini  <bonzini@gnu.org>
2876
2877         PR rtl-optimization/25890
2878         PR rtl-optimization/25905
2879         * combine.c (expand_compound_operation, expand_field_assignment):
2880         Fail if the bitfield's final position is out of bounds.
2881
2882 2006-01-24  Ian Lance Taylor  <ian@airs.com>
2883
2884         PR middle-end/25930
2885         * cgraphunit.c (cgraph_output_in_order): Don't clear
2886         cgraph_asm_nodes until after asm strings have been output.
2887
2888 2006-01-23  Adam Nemet  <anemet@caviumnetworks.com>
2889
2890         * fix-header.c (read_scan_file): Add new parameter imultilib when
2891         calling register_include_chains.
2892
2893 2006-01-23  Diego Novillo  <dnovillo@redhat.com>
2894
2895         * omp-low.c: Update documentation.
2896
2897 2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
2898             Daniel Berlin  <dberlin@dberlin.org>
2899
2900         PR tree-opt/25315
2901         PR tree-opt/25857
2902         * tree-ssa-pre.c (insert_extra_phis): If an incomming edge is abnormal
2903         return from the function.
2904
2905 2006-01-22  Zack Weinberg  <zackw@panix.com>
2906
2907         * rtl.def (match_code): Add second argument.
2908         * genpreds.c (write_extract_subexp): New function.
2909         (write_match_code): Add path argument.  Use write_extract_subexp.
2910         (write_predicate_expr): Pass path to write_match_code.
2911         (mark_mode_tests): MATCH_CODE applied to a subexpression does
2912         not perform a mode test.
2913         * genrecog.c (compute_predicate_codes): MATCH_CODE applied to
2914         a subexpression does not constrain the top-level code set.
2915         * read-rtl.c (read_rtx_variadic): New function.
2916         (read_rtx_1): Use it; allow AND and IOR to be variadic.
2917         * doc/md.texi: Document new notation.
2918         * config/i386/predicates.md (cmpsi_operand_1): Fold into ...
2919         (cmpsi_operand): ... here, using new notation.
2920
2921 2006-01-22  Zack Weinberg  <zackw@panix.com>
2922
2923         * varray.c: Remove GENERATOR_FILE #ifdefs.
2924
2925 2006-01-22  Zack Weinberg  <zackw@panix.com>
2926
2927         * genautomata.c (output_reserved_units_table): Emit nothing if
2928         description->query_units_num is zero.  Remove extra blank line.
2929         (output_cpu_unit_reservation_p): Short circuit
2930         if description->query_units_num is zero.
2931
2932 2006-01-22  Zack Weinberg  <zackw@panix.com>
2933
2934         * genattrtab.c: Don't include genattrtab.h.  Define ATTR_NONE
2935         and ATTR_SPECIAL (from genattrtab.h).  Don't define num_dfa_decls
2936         nor any of the random handful of variables that used to be necessary
2937         when this program was linked with rtlanal.o.  Prune set of forward
2938         function declarations.
2939         (struct attr_desc): Remove static_p field.
2940         (hash_obstack, temp_obstack, attr_hash_table, attr_printf)
2941         (check_attr_test, make_internal_attr, make_numeric_value): Make static.
2942         (attr_string): Do not read the character one past the length of
2943         the string.
2944         (write_attr_get, find_attr, make_internal_attr): Don't touch static_p.
2945         (struct insn_reserv, all_insn_reservs, last_insn_reserv_p)
2946         (n_insn_reservs, gen_insn_reserv, struct bypass_list, all_bypasses)
2947         (n_bypasses, gen_bypass_1, gen_bypass, process_bypasses)
2948         (make_automaton_attrs): New.
2949         (main): Do not call into genautomata.  Call local gen_bypass
2950         and gen_insn_reserv as appropriate.  Call make_automaton_attrs.
2951         Remove special case for insn_alts.
2952         * genautomata.c: Include gensupport.h; not genattrtab.h nor
2953         varray.h (leftover from previous change).  Prune set of forward
2954         function declarations.  Remove state_alts fields from all
2955         structures.  Remove state_alts_table from struct automaton.
2956         Make everything except main static.  Do not maintain num_dfa_decls.
2957         Do not maintain state_alts fields of various structures.
2958         (process_decls): Don't validate condexp for dm_insn_reserv decls.
2959         (add_arc): Remove state_alts argument.  All callers updated.
2960         (output_reserved_units_table): Emit #ifdef here...
2961         (output_tables): ...not here.  Don't generate state_alts tables.
2962         (expand_automata): Don't generate attributes.
2963         (write_automata): Don't generate state_alts functions.
2964         (main): New function.
2965         (it_is_empty_reserv_sets, output_state_alts_full_vect_name)
2966         (output_state_alts_comb_vect_name, output_state_alts_check_vect_name)
2967         (AUTOMATON_STATE_ALTS_MACRO_NAME, INTERNAL_STATE_ALTS_FUNC_NAME)
2968         (STATE_ALTS_FUNC_NAME, INSN_DEFAULT_LATENCY_FUNC_NAME)
2969         (BYPASS_P_FUNC_NAME, output_state_alts_table)
2970         (output_automata_list_state_alts_code, output_internal_state_alts_func)
2971         (output_state_alts_func, make_insn_alts_attr, make_bypass_attr)
2972         (make_internal_dfa_insn_code_attr, make_default_insn_latency_attr):
2973         Delete.
2974         * genattr.c: Declare internal_dfa_insn_code in insn-attr.h.
2975         * genattrtab.h: Delete file.
2976         * Makefile.in (OBJS-common): Add insn-automata.o.
2977         (insn-automata.o): New rule.
2978         (simple_generated_c): Add insn-automata.c.
2979         (build/genattrtab.o, build/genautomata.o): Update dependencies.
2980         (genprogmd): Add automata.
2981         (build/genattrtab): Needs no extra objects nor libraries.
2982         (build/genautomata): Needs build/vec.o and -lm.
2983
2984 2006-01-22  Zack Weinberg  <zackw@panix.com>
2985
2986         * genautomata.c (process_state_longest_path, max_dfa_issue_rate)
2987         (output_dfa_max_issue_rate, locked_states_num): Delete.
2988         (struct automaton): Add locked_states field.
2989         (output_dead_lock_vect): Save number of locked states in
2990         automaton->locked_states.  If it is zero, don't print anything.
2991         (output_max_insn_queue_index_def): Define max_insn_queue_index const.
2992         (output_internal_dead_lock_func): Only test the dead_lock_vect
2993         for automata that have locked states.
2994         (output_statistics): Always print the number of locked states for
2995         each automaton.  Calculate total number of locked states here.
2996         (write_automata): Don't call output_dfa_max_issue_rate.
2997         * genattrtab.c: Define length_unit_log as a const variable.
2998         * genattr.c: Don't emit MAX_DFA_ISSUE_RATE.  Declare
2999         max_insn_queue_index const.
3000         * final.c (length_unit_log): Declare const.
3001         * doc/tm.texi: Remove all references to MAX_DFA_ISSUE_RATE.
3002
3003 2006-01-22  Zack Weinberg  <zackw@panix.com>
3004
3005         * genautomata.c:  Include vec.h, not varray.h.
3006         Delete vla_ptr_t, all of the VLA_PTR_ macros, and all of the
3007         VLA_HWINT_ macros.  Change vla_hwint_t to a typedef for
3008         VEC(vect_el_t,heap) *.  Convert all uses of VLA_* macros to
3009         VEC_* macros operating on appropriately typed vectors, or to
3010         malloced arrays when the size is known in advance.  Const-ify
3011         many char* variables and function arguments.  No functional changes.
3012         * Makefile.in (build/varray.o): Delete rule.
3013         (build/genattrtab): Depend on build/vec.o instead of build/varray.o.
3014         (build/genautomata.o): Depend on vec.h instead of $(VARRAY_H).
3015
3016 2006-01-22  Zack Weinberg  <zackw@panix.com>
3017
3018         * gensupport.c: Define get_insn_name and record_insn_name here.
3019         (read_md_rtx): Call record_insn_name as appropriate.
3020         * genattr.c, genattrtab.c, gencodes.c, genconfig.c, genemit.c
3021         * genextract.c, genflags.c, genopinit.c, genoutput.c, genpeep.c
3022         * genpreds.c, genrecog.c: Don't define get_insn_name nor
3023         record_insn_name.
3024         * Makefile.in (BUILD_SUPPORT, BUILD_PRINT): Fold into BUILD_RTL.
3025         (BUILD_VARRAY): Delete.
3026         (genprognormal): Rename genprogmd.  Fold in all programs from
3027         genprognoprint; also attrtab.
3028         (build/genattrtab): Just mention genautomata.o and varray.o.
3029         Reorganize a bit, add comments to make the categories clearer.
3030
3031 2006-01-22  Zack Weinberg  <zackw@panix.com>
3032
3033         * genconditions.c (condition_table, add_condition): Delete.
3034         (write_conditions): Don't emit n_insn_conditions nor
3035         insn_elision_unavailable.  Issue the gcc version #ifdef here,
3036         inside the table, with no #else clause ...
3037         (write_header): ...not here.
3038         (write_writer): New function.
3039         (main): Don't initialize condition_table.  Use add_c_test.
3040         Call write_writer.
3041         * gensupport.c (init_md_reader_args_cb): Handle multiple input
3042         files on the command line.
3043         (maybe_eval_c_test): Don't check insn_elision_unavailable.
3044         Return -1 if there is no entry in the table, don't abort.
3045         (add_c_test, traverse_c_tests): New functions.
3046         * gensupport.h (insn_elision_unavailable, insn_conditions)
3047         (n_insn_conditions): Delete declarations.
3048         (add_c_test, traverse_c_tests): Declare.
3049         * read-rtl.c: Include gensupport.h.
3050         (read_conditions): New function.
3051         (read_rtx): If read_rtx_1 returns 0, treat as EOF.
3052         (read_rtx_1): If we get EOF when we were looking for an initial
3053         open paren, return 0.  Call read_conditions when appropriate.
3054         * Makefile.in: Kill BUILD_EARLY_SUPPORT and all references to
3055         dummy-conditions.o.  Eliminate references to insn-conditions.o,
3056         or change them to build/gencondmd.o, as appropriate.  Remove
3057         insn-constants.h from $(simple_generated_h) and insn-conditions.c
3058         from $(simple_generated_c).  For all files remaining in those
3059         two lists, add insn-conditions.md to the generator command line.
3060         Give insn-constants.h/s-constants their own rules.  Add rules
3061         for build/gencondmd.c, s-conditions, insn-conditions.md, s-condmd.
3062         (build/read-rtl.o): Depend on gensupport.h.
3063         (genprognormal): Include preds.
3064         (genprogearly): Rename genprognoprint; only difference is now that
3065         they don't link with $(BUILD_PRINT).
3066         * dummy-conditions.c: Delete.
3067
3068 2006-01-22  Zack Weinberg  <zackw@panix.com>
3069
3070         * genextract.c: Don't include insn-config.h.  Do include vec.h.
3071         Declare vectors of int, char, and locstr.
3072         (locstr): New typedef.
3073         (struct extraction): Make all array fields into bare pointers.
3074         (insn_name_ptr, insn_name_ptr_size): Move down by get_insn_name.
3075         (insn_code_number): Delete.
3076         (accum_extract): New struct.
3077         (VEC_safe_set_locstr, VEC_char_to_string): New functions.
3078         (gen_insn): Take insn_code_number as an argument.  Use an
3079         accum_extract structure instead of loading data directly into
3080         a struct extraction, and having to know how big it might get.
3081         (walk_rtx): Operate entirely on an accum_extract structure.
3082         (print_path): Avoid unnecessary use of printf.
3083         (print_header): New function, split out of main.  Distinguish
3084         more carefully between an unrecognizable insn and an insn that
3085         has the code number of a define_expand.
3086         (main): Pass insn_code_number to gen_insn.  Call print_header
3087         only after parsing.  Avoid unnecessary use of printf.
3088         * Makefile.in (build/vec.o): New rule.
3089         (build/genextract): Depend on build/vec.o.
3090         (build/genextract.o): Don't depend on insn-config.h.
3091
3092 2006-01-22  Zack Weinberg  <zackw@panix.com>
3093
3094         * Makefile.in: Consolidate most rules that use $(CC_FOR_BUILD) and/or
3095         $(RUN_GEN).  Use pattern rules to factor out as much boilerplate as
3096         practical.  Eliminate per-generator-program link rules.
3097
3098 2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
3099
3100         PR middle-end/24437
3101         * tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
3102         with a call expr to ...
3103         * fold-const.c (fold_ternary) <case CALL_EXPR>: Here.
3104
3105 2006-01-23  Richard Guenther  <rguenther@suse.de>
3106
3107         * cfgloopmanip.c (lv_adjust_loop_entry_edge): Add comment
3108         before make_edge with conditional EDGE_TRUE_VALUE.
3109
3110 2006-01-23  Steven Bosscher  <stevenb.gcc@gmail.com>
3111         Jan Hubicka  <jh@suse.cz>
3112         Richard Guenther  <rguenther@suse.de>
3113
3114         PR rtl-optimization/25654
3115         * cfgexpand.c (aggregate_contains_union_type): New function.
3116         (add_alias_set_conflicts): Call it.  Make sure to add conflicts
3117         for structure variables that contain a union type.
3118
3119 2006-01-23  Richard Sandiford  <richard@codesourcery.com>
3120
3121         * gengtype.c (new_structure): Return the structure.
3122         (create_option): Add an extra "next" argument.
3123         (create_field): New function.
3124         (adjust_field_rtx_def): Use create_option and create_field.
3125         Remove a now-unnecessary call to find_structure.
3126         (adjust_field_tree_def): Likewise.
3127         (note_yacc_type): Remove an unnecessary call to find_structure.
3128         * gengtype.h (new_structure): Return the structure.
3129         (create_option): Add an extra argument.
3130         * gengtype-yacc.y (type): Remove unnecessary calls to find_structure.
3131         (option): Adjust calls to create_option.
3132
3133 2006-01-22  David Edelsohn  <edelsohn@gnu.org>
3134
3135         * config/rs6000/aix.h (STACK_BOUNDARY): Define.
3136
3137 2006-01-22  Paul Brook  <paul@codesourcery.com>
3138         Peter Barada  <peter@the-baradas.com>
3139
3140         * config/m68k/m68k.md: Add Coldfire FPU support.
3141         Define FP mode macro and associated attributes.
3142         Use it for float mode patterns.
3143         * config/m68k/linux.h (FUNCTION_VALUE): Use m68k_function_value.
3144         (LIBCALL_VALUE): Use m68k_libcall_value.
3145         * config/m68k/m68k-protos.h (m68k_libcall_value): Add prototype.
3146         (m68k_function_value): Ditto.
3147         (emit_move_sequence): Ditto.
3148         * config/m68k/m68kemb.h (LIBCALL_VALUE): Use m68k_libcall_value.
3149         * config/m68k/m68k-none.h (ASM_SPEC): Add mcfv4e.
3150         * config/m68k/t-m68kelf (MULTILIB_OPTIONS): Add mcfv4e.
3151         (MULTILIB_EXCEPTIONS): Ditto.
3152         * config/m68k/m68k.opt: Add mcfv4e.
3153         * config/m68k/m68k.c (m68k_handle_option): Handle OPT_mcfv4e.
3154         (m68k_compute_frame_layout): Include space for ColdFire FPU regs.
3155         (m68k_output_function_prologue): Save ColdFire FPU registers.
3156         (m68k_output_function_epilogue): Restore ColdFire FPU registers.
3157         (force_mode, fp_reg_operand, emit_move_sequence): New functions.
3158         (m68k_regno_mode_ok): Don't allow types larget than 8 bytes in
3159         ColdFire FPU registers.
3160         (m68k_libcall_value, m68k_function_value): New functions.
3161         * config/m68k/netbsd-elf.h (FUNCTION_VALUE): Use m68k_function_value.
3162         (LIBCALL_VALUE): Use m68k_libcall_value.
3163         * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Define __mcfv4e__.
3164         (MASK_COLDFIRE): Add MASK_CFV4E.
3165         (TARGET_COLDFIRE_FPU, TARGET_HARD_FLOAT, TARGET_FP_REG_SIZE): New.
3166         (MODES_TIEABLE_P): Use TARGET_HARD_FLOAT.
3167         (REG_CLASS_FROM_LETTER, PREFERRED_RELOAD_CLASS): Ditto.
3168         (GO_IF_COLDFIRE_FPU_LEGITIMATE_ADDRESS): Define.
3169         (GO_IF_LEGITIMATE_ADDRESS): Use it.
3170         (LEGITIMIZE_ADDRESS): Handle ColdFire FPU addresses.
3171         * doc/invoke.tex: Document -mcfv4e on m68k.
3172
3173 2006-01-22  Ranjit Mathew  <rmathew@gcc.gnu.org>
3174
3175         * doc/contribute.texi: Change CVS to SVN and update the corresponding
3176         URL.
3177
3178 2006-01-21  Gabriel Dos Reis  <gdr@integrable-solutions.net>
3179
3180         PR c++/16190
3181         * c-opts.c (c_common_handle_option): Don't include
3182         -Wnon-virtual-dtor in -Wall; enable if -Weffc++.
3183         * doc/invoke.texi (C++ Dialect Options): Document that
3184         -Wnon-virtual-dtor is no longer included in -Wall.
3185
3186 2006-01-21  Joseph S. Myers  <joseph@codesourcery.com>
3187
3188         * gcov.c (print_version), gcov-dump.c (print_version),
3189         mips-tdump.c (main), mips-tfile.c (main): Update copyright notice
3190         dates.
3191
3192 2006-01-21  Kenneth Zadeck <zadeck@naturalbridge.com>
3193
3194         * df-scan.c (problem_SCAN): Added NULL reset function.
3195         (df_scan_reset_blocks): Added code to call reset block function
3196         (df_bb_refs_delete) Fixed comment.
3197         (df_insn_refs_delete): Made tolerant of deleting non existent info
3198         for dataflow problems that need to be reset.
3199         * df-core.c (df_set_blocks): Ditto.
3200         * df.h (struct df_problem): Added reset_fun.
3201         * df-problems.c (problem_RU, problem_RD, problem_LR, problem_UR,
3202         problem_UREC, problem_CHAIN, problem_RI): Initialized reset_fun field.
3203         (df_chain_insn_reset, df_chain_bb_reset, df_chain_reset): New
3204         functions to clear out all references to def-use or use-def chains.
3205
3206 2006-01-21  Ben Elliston  <bje@au.ibm.com>
3207
3208         * varasm.c (assemble_real): Initialise data array.
3209
3210 2006-01-20  Paul Brook  <paul@codesourcery.com>
3211
3212         Merge from csl-arm-branch.
3213         2005-09-21  Kazu Hirata  <kazu@codesourcery.com>
3214         * config/arm/arm.md (movdi): Force operands[1] to a register
3215         if we have a non-register source.
3216         (*arm_movdi, *movdf_soft_insn): Require that one of the
3217         operands be a register.
3218         * config/arm/iwmmxt.md (*iwmmxt_arm_movdi): Likewise.
3219         * config/arm/vfp.md (*arm_movdi_vfp, *movdf_vfp): Likewise.
3220
3221 2006-01-20  DJ Delorie  <dj@redhat.com>
3222
3223         * varasm.c (initialize_constant_valid_p): Allow pointers
3224         initialized from integer constants of lesser precision.
3225         (output_constant): Allow non-int-sized pointer modes to be
3226         initialized from integer constants.
3227
3228 2006-01-20  Joseph S. Myers  <joseph@codesourcery.com>
3229
3230         PR libstdc++/25524
3231         * cppdefault.h (struct default_include): Add multilib flag.
3232         * cppdefault.c (cpp_include_defaults): Set it.
3233         * c.opt (-imultilib): New option.
3234         * c-opts.c (imultilib): New.
3235         (c_common_handle_option): Handle -imultilib.
3236         (c_common_post_options): Likewise.
3237         * c-incpath.c (add_standard_paths, register_include_chains):
3238         Likewise.
3239         * c-incpath.h (register_include_chains): Add extra parameter.
3240         * gcc.c (do_spec_1): Generate -imultilib option.
3241         (The Specs Language): Update %I description.
3242         (process_command): Update copyright notice.
3243         * doc/cppopts.texi (-imultilib): Document.
3244         * doc/invoke.texi (-imultilib): Include in option summary.
3245         (%I): Update specs documentation.
3246
3247 2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>
3248
3249         * loop-iv.c (iv_analysis_loop_init): Use df in more conservative way.
3250
3251 2006-01-20  Richard Sandiford  <richard@codesourcery.com>
3252
3253         * stmt.c (case_bit_test_cmp): Stabilize the sort using code
3254         label numbers.
3255
3256 2006-01-20  Richard Guenther  <rguenther@suse.de>
3257         Steven Bosscher <stevenb.gcc@gmail.com>
3258
3259         PR rtl-optimization/24626
3260         * cfgloopmanip.c (lv_adjust_loop_entry_edge): Don't set
3261         EDGE_TRUE_VALUE if in RTL mode.
3262
3263         Revert
3264         2005-03-30 Mostafa Hagog <mustafa@il.ibm.com>
3265         * cfgrtl.c (rtl_verify_flow_info_1): Fix.
3266
3267 2006-01-20  Dirk Mueller  <dmueller@suse.com>
3268
3269         PR c++/5520
3270         * c-parser.c (c_parser_if_body): Use build_empty_stmt()
3271         instead of a special NOP marker.
3272         * c-typeck.c (c_finish_if_stmt): Remove obsoleted special
3273         NOP marker handling.
3274         * c-common.h (empty_body_warning): Add forward declaration.
3275         * c-common.c (empty_body_warning): Add (from c_finish_if_stmt).
3276         Now uses IS_EMPTY_STMT() instead of special NOP markers.
3277
3278 2006-01-20  Paul Brook  <paul@codesourcery.com>
3279
3280         * Makefile.in (lang_checks): Keep going if mkdir fails.
3281
3282 2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
3283
3284         * df-scan.c (df_scan_free_bb_info): Added basic block parameter to
3285         be able to clean out basic block when not necessary.
3286         (df_scan_free): Fixed to properly delete information if df is
3287         unused before calling df_finish.
3288         (df_scan_alloc, df_rescan_blocks, df_reg_chain_unlink,
3289         df_insn_create_insn_record, df_bb_refs_record): Fixed formatting
3290         or comment typos.
3291         (df_bb_refs_delete): New function.
3292         (df_refs_delete): Moved per block code to df_bb_refs_delete.
3293         * df-core.c (df_set_blocks): Added code to properly clean out
3294         unused blocks if they are not part of the blocks to consider.
3295         Added additional null check.
3296         (df_compact_blocks): Added basic block parameter to free_bb_fun to
3297         be able to clean out basic block when not necessary
3298         * df.h (df_free_bb_function): Ditto.
3299         (df_bb_refs_delete): New function.
3300         * df-problems.c (df_ru_free_bb_info, df_rd_set_bb_info,
3301         df_lr_set_bb_info, df_ur_free_bb_info, df_urec_free_bb_info):Added
3302         basic block parameter to be able to clean out basic block when not
3303         necessary.
3304         (df_ru_alloc, df_rd_alloc): Fixed dyslexic overflow test.
3305         (df_ru_free, df_rd_free, df_lr_free, df_ur_free, df_urec_free):
3306         Fixed to properly delete information if df is unused before
3307         calling df_finish.
3308
3309 2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
3310
3311         PR rtl-optimization/25799
3312         * df-problems.c (df_ru_confluence_n, df_rd_confluence_n):
3313         Corrected confluence operator to remove bits from op2 before oring
3314         with op1 rather than removing bits from op1.
3315         (df_ru_transfer_function): Corrected test on wrong bitmap which
3316         caused infinite loop.  Both of these problems were introduced in
3317         the dataflow rewrite.
3318
3319 2006-01-19  DJ Delorie  <dj@redhat.com>
3320
3321         * reload1.c (find_reload_regs): Note the details of reload
3322         failures in the dump file.
3323         (spill_failure): Likewise.
3324
3325 2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>
3326
3327         * loop-iv.c: Include df.h and hashtab.h.
3328         (enum iv_grd_result): New enum.
3329         (DF_REF_IV, DF_REF_IV_SET): New macros.
3330         (struct biv_entry): New.
3331         (df, bivs): New global variables.
3332         (struct insn_info, insn_info, last_def, bivs, max_insn_no, max_reg_no,
3333         assign_luids, mark_sets, kill_sets, mark_single_set, simple_set_p):
3334         Removed.
3335         (clear_iv_info, latch_dominating_def, record_iv, iv_analyze_expr,
3336         iv_analyze_result, iv_analyze_def, biv_hash, biv_eq,
3337         analyzed_for_bivness_p, record_biv): New functions.
3338         (iv_analysis_loop_init, iv_get_reaching_def, simple_reg_p,
3339         get_biv_step_1, get_biv_step, iv_analyze_biv, iv_analyze_op,
3340         iv_analyze, biv_p, iv_analysis_done): Work with df representation of
3341         UD chains.
3342         (iv_constant, iv_subreg, iv_extend, iv_mult, iv_shift): Do not set
3343         analysed.
3344         (iv_number_of_iterations): Use new interface to iv analysis.
3345         * loop-unroll.c: Do not include varray.h.
3346         (analyze_iv_to_split_insn): Use new interface to iv
3347         analysis.
3348         * loop-unswitch.c (may_unswitch_on): Ditto.
3349         * df.c (df_bitmaps_free): Only work for bbs for that structures are
3350         allocated.
3351         (df_bb_modify): Realloc tables to the new index.
3352         (df_find_use): New function.
3353         * df.h (df_find_use): Declare.
3354         * optabs.c (expand_unop): Make the mode of the REG_EQUAL node be
3355         outmode.
3356         * cfgloop.h (struct rtx_iv): Remove analysed field.
3357         (iv_get_reaching_def): Removed.
3358         (iv_analyze_result, iv_analyze_expr, iv_current_loop_df): Declare.
3359         * Makefile.in (loop-unroll.o): Remove VARRAY_H dependency.
3360         (loop-iv.o): Add df.h and hashtab.h dependency.
3361         * df-problems.c (df_ru_alloc, df_rd_alloc): Fix memory reallocation.
3362
3363 2006-01-20  Alan Modra  <amodra@bigpond.net.au>
3364
3365         PR target/25668
3366         * libgcc2.c (__floatdisf, __floatdidf): Don't use IBM Extended
3367         Double TFmode.
3368         (__floatundisf, __floatundidf): Likewise.
3369         * libgcc2.h (IS_IBM_EXTENDED): Define.
3370
3371 2006-01-19  DJ Delorie  <dj@redhat.com>
3372
3373         * config/m32c/m32c.h (REG_ALLOC_ORDER): Define.
3374
3375 2006-01-19  Paul Brook  <paul@codesourcery.com>
3376
3377         * gcc/config/arm/arm.c (arm_compute_func_type): Treat all functions
3378         as nothrow when unwinding tables are disabled.
3379
3380 2006-01-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
3381
3382         PR testsuite/25171
3383         * c-decl.c (check_bitfield_type_and_width): Don't issue pedwarn "type
3384         of bit-field" when in system header.
3385
3386 2006-01-19  DJ Delorie  <dj@redhat.com>
3387
3388         * config/m32c/m32c.c (m32c_prepare_shift): Add code to deal with
3389         the 16 bit shift limit of the m16c.
3390
3391 2006-01-19  Andrew Pinski  <pinskia@physics.uc.edu>
3392
3393         PR target/22099
3394         * config/i386/i386.md (builtin_setjmp_receiver): Don't emit the label.
3395         * config/i386/i386.c (output_set_got): Output the label if we have one
3396         for the TARGET_DEEP_BRANCH_PREDICTION case.
3397
3398 2006-01-19  Jan Hubicka  <jh@suse.cz>
3399             H.J. Lu  <hongjiu.lu@intel.com>
3400             Evandro Menezes <evandro.menezes@amd.com>
3401
3402         * invoke.texi (generic): Document
3403         (i686) Update.
3404         * config.gcc: Make x86_64-* and i686-* default to generic tunning.
3405         * i386.h (TARGET_GENERIC32, TARGET_GENERIC64, TARGET_GENERIC,
3406         TARGET_USE_INCDEC, TARGET_PAD_RETURNS): New macros.
3407         (x86_use_incdec, x86_pad_returns): New variables
3408         (TARGET_CPU_DEFAULT_generic): New constant
3409         (TARGET_CPU_DEFAULT_NAMES): Add generic.
3410         (enum processor_type): Add generic32 and generic64.
3411         * i386.md (cpu attribute): Add generic32/generic64
3412         (movhi splitter): Behave sanely when both partial_reg_dependency and
3413         partial_reg_stall are set.
3414         (K8 splitters): Enable for generic as well.
3415         * predicates.md (incdec_operand): Use TARGET_INCDEC
3416         (aligned_operand): Avoid memory mismatch stalls.
3417         * athlon.md: Enable for generic64, new patterns for 128bit moves.
3418         * ppro.md: Enable for generic32
3419         * i386.c (generic64_cost, generic32_cost): New.
3420         (m_GENERIC32, m_GENERIC64, m_GENERIC): New macros.
3421         (x86_use_leave): Enable for generic64.  (x86_use_sahf,
3422         x86_ext_80387_constants): Enable for generic32.  (x86_push_memory,
3423         x86_movx, x86_unroll_strlen, x86_deep_branch, x86_use_simode_fiop,
3424         x86_use_cltd, x86_promote_QImode, x86_sub_esp_4, x86_sub_esp_8,
3425         x86_add_esp_4, x86_add_esp_8, x86_integer_DFmode_moves,
3426         x86_partial_reg_dependency, x86_memory_mismatch_stall,
3427         x86_accumulate_outgoing_args, x86_prologue_using_move,
3428         x86_epilogue_using_move, x86_arch_always_fancy_math_387,
3429         x86_sse_partial_reg_dependency, x86_four_jump_limit, x86_schedule):
3430         Enable for generic.
3431         (x86_use_incdec, x86_pad_returns): New.
3432         (override_options): Add generic32 and generic64, translate "generic"
3433         to generic32/generic64 and "i686" to "generic32", refuse
3434         "generic32"/"generic64" as arch target.
3435         (ix86_issue_rate, ix86_adjust_cost): Handle generic as athlon.
3436         (ix86_reorg): Honor PAD_RETURNS.
3437
3438 2006-01-19  Diego Novillo  <dnovillo@redhat.com>
3439
3440         * tree-pretty-print.c (dump_generic_node): Handle
3441         OMP_PARALLEL_FN, OMP_PARALLEL_DATA_ARG and OMP_RETURN_EXPR.
3442         * cgraph.c (cgraph_expand_queue): Rename from
3443         cgraph_analyze_queue.  Update all users.
3444         * cgraphunit.c (cgraph_assemble_pending_functions): Process
3445         cgraph_expand_queue.
3446         (cgraph_expand_all_functions): Likewise.
3447         (cgraph_finalize_pending_functions): Remove.  Update callers.
3448
3449         * tree.h (OMP_DIRECTIVE_P): Define.
3450         (OMP_PARALLEL_FN): Define.
3451         (OMP_PARALLEL_DATA_ARG): Define.
3452         (OMP_SECTIONS_SECTIONS): Define.
3453         * tree-pass.h (pass_expand_omp): Declare.
3454         * omp-low.c (struct omp_region): Declare.
3455         (struct omp_context): Remove fields 'parallel_type',
3456         'parallel_start_ix' and 'parallel_start_additional_args'.
3457         Update all users.
3458         (struct omp_for_data): Rename from struct expand_omp_for_data.
3459         (omp_regions): New static variable.
3460         (root_omp_region): New static variable.
3461         (find_omp_clause): Make static.
3462         (is_in_combined_parallel_ctx): Remove.
3463         (is_combined_parallel): New.
3464         (extract_omp_for_data): Move earlier in the file.
3465         (workshare_safe_to_combine_p): New.
3466         (get_ws_args_for): New.
3467         (determine_parallel_type): Move earlier in the file.
3468         (omp_copy_decl_2): Do not set DECL_CONTEXT of new local to the
3469         child function.
3470         (omp_copy_decl): Likewise.
3471         (create_omp_child_function): Likewise.
3472         (lookup_omp_region): New.
3473         (dump_omp_region): New.
3474         (debug_omp_region): New.
3475         (debug_all_omp_regions): New.
3476         (new_omp_region): New.
3477         (scan_omp_parallel): If parallel_nesting_level > 1, the
3478         directive is nested within another parallel directive.
3479         Set OMP_PARALLEL_FN.
3480         (scan_omp_for): Do not try to handle combined parallel+for
3481         cases.
3482         Remove FIXME comment.
3483         (scan_omp_nested): Remove.
3484         (scan_omp_1): Do not call scan_omp_nested when
3485         parallel_nesting_level is > 1.
3486         Do not change the DECL_CONTEXT of local variables found.
3487         (lookup_decl_in_outer_ctx): New.
3488         (lower_rec_input_clauses): Rename from expand_rec_input_clauses.
3489         (lower_lastprivate_clauses): Rename from expand_lastprivate_clauses.
3490         (lower_reduction_clauses): Rename from expand_reduction_clauses.
3491         (lower_copyprivate_clauses): Rename from expand_copyprivate_clauses.
3492         If CTX is nested, lookup VAR in the outer context when
3493         building copy assignment.
3494         (lower_send_clauses): Rename from expand_send_clauses.
3495         If CTX is nested, lookup VAR in the outer context when
3496         building copy assignments.
3497         (lower_send_shared_vars): Rename from expand_send_shared_vars.
3498         If CTX is nested, lookup VAR in the outer context when
3499         building copy assignments.
3500         (expand_parallel_call): Rename from build_parallel_call.
3501         Handle combined parallel+workshare cases.
3502         Re-implement to emit code into the CFG.
3503         (list2chain): New.
3504         (expand_omp_parallel): Re-implement to emit code into the CFG.
3505         Call move_sese_region_to_fn to outline the sub-graph
3506         containing the parallel region.
3507         (expand_omp_for_1): Remove.
3508         (expand_omp_for_generic): Re-implement to emit code into the
3509         CFG.
3510         (expand_omp_for_static_nochunk): Likewise.
3511         (expand_omp_for_static_chunk): Likewise.
3512         (expand_omp_for): Likewise.
3513         (expand_omp_sections): Likewise.
3514         (remove_exit_barriers): New.
3515         (expand_omp_synch): New.
3516         (expand_omp): New.
3517         (build_omp_regions_1): New.
3518         (build_omp_regions): New.
3519         (execute_expand_omp): New.
3520         (gate_expand_omp): New.
3521         (pass_expand_omp): Define.
3522         (lower_omp_sections): Rename from expand_omp_sections.
3523         Set OMP_SECTIONS_SECTIONS.
3524         (lower_omp_single_simple): Rename from expand_omp_single_simple.
3525         (lower_omp_single_copy): Rename from expand_omp_single_copy.
3526         (lower_omp_single): Rename from expand_omp_simple.
3527         (lower_omp_master): Rename from expand_omp_master.
3528         (lower_omp_ordered): Rename from expand_omp_ordered.
3529         (lower_omp_critical): Rename from expand_omp_critical.
3530         (lower_omp_for_lastprivate): Rename from expand_omp_for_lastprivate.
3531         (lower_omp_for): Re-implement.
3532         (lower_omp_parallel): Re-implement.
3533         (lower_regimplify): Rename from expand_regimplify.
3534         (lower_omp_1): Rename from expand_omp_1.
3535         If there are syntax errors in the program, replace every
3536         OpenMP directive with NOP.
3537         Call lower_omp_* instead of expand_omp_*.
3538         (lower_omp): Rename from expand_omp.
3539
3540         * tree-gimple.c (is_gimple_stmt): Handle OMP_RETURN_EXPR.
3541         * tree-gimple.h (enum omp_parallel_type): Remove.
3542         (gimple_boolify): Declare extern.
3543         (find_omp_clause, determine_parallel_type): Remove.
3544
3545         * gimple-low.c (lower_omp_directive): New.
3546         (lower_stmt): Call it.
3547         (record_vars_into): Move from ...
3548         (record_vars): ... here.
3549         Call record_vars_into with current_function_decl.
3550
3551         * gimplify.c (struct gimplify_ctx): Remove fields
3552         combined_pre_p and combined_ctxp.  Update users.
3553         (get_formal_tmp_var): Add documentation.
3554         (gimple_boolify): Make extern.
3555         (gimplify_expr_in_ctx): Remove.  Update callers.
3556         (gimplify_omp_parallel): Do not assume that OMP_PARALLEL_BODY
3557         will always be a BIND_EXPR.
3558         (gimplify_expr): Handle OMP_RETURN_EXPR.
3559         * tree.def (BLOCK): Remove documentation about BLOCK_TYPE_TAGS.
3560         (OMP_PARALLEL): Add 3 operands.
3561         (OMP_SECTIONS): Add 1 operand.
3562         (OMP_RETURN_EXPR): Define.
3563
3564         * tree-inline.c (estimate_num_insns_1): Handle OpenMP directives.
3565         (copy_tree_r): Restore TREE_CHAIN in OMP_CLAUSE_*.
3566         * tree-iterator.c (alloc_stmt_list): Assert that we are not
3567         creating a circular free list.
3568         (free_stmt_list): Assert that we are not freeing stmt_list_cache.
3569
3570         * tree-flow.h (move_sese_region_to_fn): Declare.
3571         (record_vars_into): Declare.
3572         * tree-cfg.c (make_omp_sections_edges): New.
3573         (make_exit_edges): Handle OMP_PARALLEL, OMP_FOR, OMP_SINGLE,
3574         OMP_MASTER, OMP_ORDERED, OMP_CRITICAL, OMP_RETURN_EXPR,
3575         OMP_SECTIONS and OMP_SECTION.
3576         (is_ctrl_altering_stmt): Return true for OMP_DIRECTIVE_P.
3577         (set_bb_for_stmt): Undo change to check currently_expanding_to_rtl.
3578         (verify_stmt): Do not handle OMP_DIRECTIVE_P.
3579         (gather_blocks_in_sese_region): New.
3580         (struct move_stmt_d): Declare.
3581         (move_stmt_r): New.
3582         (move_block_to_fn): New.
3583         (move_sese_region_to_fn): New.
3584
3585         * passes.c (init_optimization_passes): Schedule
3586         pass_expand_omp after pass_init_datastructures.
3587
3588         * tree-ssa-operands.c (get_expr_operands): Handle
3589         OMP_PARALLEL, OMP_SECTIONS, OMP_FOR, OMP_RETURN_EXPR,
3590         OMP_SINGLE, OMP_MASTER, OMP_ORDERED, OMP_CRITICAL.
3591
3592 2006-01-19  Jeff Law  <law@redhat.com>
3593
3594         * tree-vrp.c (extract_range_from_assert): Refine the result range
3595         if the variable referenced by the ASSERT_EXPR has a range and
3596         either the tentative result range or the previous range is a
3597         VR_ANTI_RANGE.
3598
3599 2006-01-19  Richard Sandiford  <richard@codesourcery.com>
3600
3601         * c-decl.c (add_flexible_array_elts_to_size): Simplify vector accesses.
3602
3603 2006-01-19  Jan Hubicka  <jh@suse.cz>
3604
3605         * tree-vect-patterns.c (vect_pattern_recog_1): Prevent parse error.
3606
3607 2006-01-19  Paolo Bonzini  <bonzini@gnu.org>
3608
3609         * combine.c (try_combine): Do not worry about MEMs wrapped by USEs.
3610         (expand_compound_operation, expand_field_assignment): Fail if the
3611         bit lengths of an extract operation are out of range.
3612         (make_extraction): Compute wanted_inner_mode based on the position
3613         and length of the extraction.  Make it extraction_mode for non-constant
3614         positions, and do not modify offset in that case.  When generating a
3615         new MEM, use a mode that can hold the extraction while keeping correct
3616         alignment.  Remove code that supported MEMs wrapped by USEs.
3617         (simplify_shift_const_1, force_to_mode) <case USE>: Remove.
3618
3619 2006-01-19  Andreas Krebbel  <krebbel1@de.ibm.com>
3620
3621         * config/s390/s390.md ("Y", "y"): New mode attribute.
3622         ("*cmpdi_ccs", "*cmpsi_ccs", "*adddi3_imm_cc", "*adddi3_carry1_cc",
3623         "*adddi3_carry1_cconly", "*adddi3_carry2_cc", "*adddi3_carry2_cconly",
3624         "*adddi3_cc", "*adddi3_cconly", "*adddi3_cconly2", "*adddi3_64",
3625         "*addsi3_imm_cc", "*addsi3_carry1_cc",
3626         "*addsi3_carry1_cconly", "*addsi3_carry2_cc", "*addsi3_carr2_cconly",
3627         "*addsi3_cc", "*addsi3_cconly", "*addsi3_cconly2",
3628         "*subdi3_borrow_cc", "*subdi3_borrow_cconly", "*subdi3_cc",
3629         "*subdi3_cc2", "*subdi3_cconly", "*subdi3_cconly2", "*subdi3_64",
3630         "*subsi3_borrow_cc", "*subsi3_borrow_cconly", "*subsi3_cc",
3631         "*subsi3_cc2", "*subsi3_cconly", "*subsi3_cconly", "*subsi3_cconly2",
3632         "addsi3", "subsi3"): Insn patterns removed.
3633         ("*add<mode>3_carry1_cc", "*add<mode>3_carry1_cconly",
3634         "*add<mode>3_carry2_cc", "*add<mode>3_carry2_cconly", "*add<mode>3_cc",
3635         "*add<mode>3_cconly", "*add<mode>3_cconly2", "*add<mode>3_imm_cc",
3636         "*sub<mode>3_borrow_cc", "*sub<mode>3_borrow_cconly",
3637         "*sub<mode>3_cc", "*sub<mode>3_cc2", "*sub<mode>3_cconly",
3638         "*sub<mode>3_cconly2"): New insn patterns.
3639         ("addsi3", "subsi3"): New expanders.
3640
3641 2006-01-19  Dorit Nuzman  <dorit@il.ibm.com>
3642
3643         * Makefile.in (tree-vect-patterns.o): Add rule for new file.
3644         * tree-vect-analyze.c (vect_determine_vectorization_factor): Use
3645         existing STMT_VINFO_VECTYPE if available.
3646         (vect_mark_relevant): Add special handling for stmts that are
3647         marked as STMT_VINFO_IN_PATTERN_P.
3648         (vect_analyze_loop): Call vect_pattern_recog.
3649         * tree-vectorizer.c (new_stmt_vec_info): Initialize new fields.
3650         * tree-vectorizer.h (in_pattern_p, related_stmt): New fields in
3651         stmt_info.
3652         (STMT_VINFO_IN_PATTERN_P, STMT_VINFO_RELATED_STMT): New macros.
3653         (vect_recog_func_ptr): New function-pointer type.
3654         * tree-vect-patterns.c: New file.
3655         (vect_recog_widen_sum_pattern, vect_recog_widen_mult_pattern):
3656         (vect_recog_dot_prod_pattern, vect_pattern_recog):
3657         (vect_pattern_recog_1): New functions.
3658         (vect_pattern_recog_funcs): New array of function pointers.
3659
3660         * tree-vectorizer.h (ternary_op): New enum value.
3661         * tree-vect-transform.c (vect_create_epilog_for_reduction): Added
3662         declaration. Revised documentation. Removed redundant dump prints.
3663         Removed redundant argument. Added support for reduction patterns.
3664         (vectorizable_reduction): Added support for reduction patterns.
3665         (vect_transform_stmt): Added support for patterns.
3666
3667         * expr.c (expand_expr_real_1): Added case for DOT_PROD_EXPR.
3668         * genopinit.c (udot_prod_optab, sdot_prod_optab): Initialize.
3669         * optabs.c (optab_for_tree_code): Added case for DOT_PROD_EXPR.
3670         (expand_widen_pattern_expr): New function.
3671         (init_optabs): Initialize new optabs udot_prod_optab,
3672         sdot_prod_optab.
3673         * optabs.h (OTI_sdot_prod, OTI_udot_prod): New.
3674         (sdot_prod_optab, udot_prod_optab): Define new optabs.
3675         (expand_widen_pattern_expr): New function declaration.
3676         * tree.def (DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR): New
3677         tree-codes.
3678         * tree-inline.c (estimate_num_insns_1): Added cases for new
3679         tree-codes DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
3680         * tree-pretty-print.c (dump_generic_node): Likewise.
3681         (op_prio): Likewise.
3682         (op_symbol): Added cases for WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
3683         * tree-ssa-operands.c (get_expr_operands): Added case for
3684         DOT_PROD_EXPR.
3685         * tree-vect-patterns.c (widened_name_p): New function.
3686         (vect_recog_dot_prod_pattern): Added function implementation.
3687         * tree-vect-transform.c (get_initial_def_for_reduction): Added
3688         cases for DOT_PROD_EXPR, WIDEN_SUM_EXPR.
3689         * config/rs6000/altivec.md (udot_prod<mode>, sdot_prodv8hi): New.
3690         * config/i386/sse.md (sdot_prodv8hi, udot_prodv4si): New.
3691
3692         * expr.c (expand_expr_real_1): Added case for WIDEN_SUM_EXPR.
3693         * genopinit.c (widen_ssum_optab, widen_usum_optab): Initialize.
3694         * optabs.c (optab_for_tree_code): Added case for WIDEN_SUM_EXPR.
3695         (init_optabs): Initialize new optabs widen_ssum_optab,
3696         widen_usum_optab.
3697         * optabs.h (OTI_widen_ssum, OTI_widen_usum): New.
3698         (widen_ssum_optab, widen_usum_optab): Define new optabs.
3699         * tree-vect-generic.c: (expand_vector_operations_1): Check type of
3700         use instead of type of def.
3701         * tree-vect-patterns.c (vect_recog_widen_sum_pattern): Added
3702         function implementation.
3703         * config/rs6000/altivec.md (widen_usum<mode>, widen_ssumv16qi,
3704         widen_ssumv8hi): New.
3705
3706         * doc/tm.texi (ssum_widen, usum_widen, sdot_prod, udot_prod): New
3707         patterns.
3708
3709 2006-01-19  Richard Sandiford  <richard@codesourcery.com>
3710
3711         PR c/25805
3712         * c-decl.c (add_flexible_array_elts_to_size): New function.
3713         (finish_decl): Use it.
3714
3715 2006-01-18  Andrew Pinski  <pinskia@physics.uc.edu>
3716
3717         * diagnostic.h: Include options.h.
3718         * config/rs6000/x-darwin (host-ppc-darwin.o): Correct the
3719         dependancies for diagnostic.h.
3720         * Makefile.in (DIAGNOSTIC_H): Add options.h.
3721
3722 2006-01-16  Daniel Berlin  <dberlin@dberlin.org>
3723
3724         * tree-ssa-operands.h (ssa_call_clobbered_cache_valid): Remove.
3725         (ssa_ro_call_cache_valid): Ditto.
3726         * tree-ssa-alias.c (sort_tags_by_id): New function.
3727         (init_transitive_clobber_worklist): Ditto.
3728         (add_to_worklist): Ditto.
3729         (mark_aliases_call_clobbered): Ditto.
3730         (compute_tag_properties): Ditto.
3731         (set_initial_properties): Ditto.
3732         (compute_call_clobbered): Ditto.
3733         (compute_may_aliases):  Call compute_call_clobbered and grouping.
3734         (compute_flow_sensitive_aliasing): Remove clobbering related code.
3735         (compute_flow_insensitive_aliasing): Grouping now happens in our
3736         caller.
3737         (setup_pointers_and_addressables): Remove clobbering related code.
3738         (add_may_alias): Ditto.
3739         (replace_may_alias): Ditto.
3740         (get_nmt_for): Ditto.
3741         (create_global_var):
3742         (is_escape_site): Return an escape_type enumeration.
3743         * tree-flow-inline.h (is_call_clobbered):  Global var does not
3744         imply call clobbered.
3745         (mark_call_clobbered): Take a reason for marking this. Remove
3746         marking of globalness, and cache invalidation.
3747         (clear_call_clobbered): Remove cache invalidation code.
3748         * tree-dfa.c (dump_variable): If details is on, dump the reason
3749         for escaping.
3750         * tree-outof-ssa.c (create_temp): Copy escape mask from original
3751         variable.
3752         * tree-flow.h (struct ptr_info_def): Add escape mask member.
3753         (struct var_ann_d): Ditto.
3754         (enum escape_type): New.
3755         (mark_call_clobbered): Adjust prototype.
3756         * tree-ssa-structalias.c (update_alias_info): Unmodifiable vars
3757         are never call clobbered.
3758         Record reasons for escaping.
3759         * tree-ssa-structalias.h (is_escape_site): Update prototype.
3760         * tree-ssa-operands.c (ssa_call_clobbered_cache_valid): Remove.
3761         (ssa_ro_call_cache_valid): Ditto.
3762         (clobbered_v_may_defs): Ditto.
3763         (clobbered_vuses): Ditto.
3764         (ro_call_vuses): Ditto.
3765         (clobber_stats): New.
3766         (init_ssa_operands): Zero out clobber stats.
3767         (fini_ssa_operands): Print out clobber stats.
3768         (get_call_expr_operands): Pass callee fndecl to
3769         add_call_read_ops).
3770         (add_call_clobber_ops): Remove use of cache.
3771         Add use of PURE_CONST information.
3772         (add_call_read_ops): Remove use of cache.
3773         Add use of static not_read information.
3774
3775 2006-01-18  Alexandre Oliva  <aoliva@redhat.com>
3776
3777         Introduce TLS descriptors for i386 and x86_64.
3778         * config/i386/i386.h (TARGET_GNU2_TLS): New macro.
3779         (TARGET_ANY_GNU_TLS): New macro.
3780         (enum tls_dialect): Added TLS_DIALECT_GNU2.
3781         (struct machine_function): Add tls_descriptor_call_expanded_p.
3782         (ix86_tls_descriptor_calls_expande_in_cfun): New macro.
3783         (ix86_current_function_calls_tls_descriptor): Likewise.
3784         * config/i386/i386.c (ix86_tls_dialect): Fix typo in comment.
3785         (override_options): Introduce gnu2 tls dialect.
3786         (ix86_frame_pointer_required): Functions containing TLSCALLs are
3787         not leaves.
3788         (ix86_select_alt_pic_regnum, ix86_compute_frame_layout):
3789         Likewise.
3790         (legitimize_tls_address): Adjust logic for GNU2 TLS.
3791         (ix86_init_machine_status): Initialize new field.
3792         (ix86_tls_get_addr): Use TARGET_ANY_GNU_TLS.
3793         (ix86_tls_module_base): New.
3794         * config/i386/i386-protos.h (ix86_tls_module_base): Declare it.
3795         * config/i386/i386.md (UNSPEC_TLSDESC): New constant.
3796         (tls_global_dynamic_32, tls_global_dynamic_64): Handle GNU2 TLS.
3797         (tls_local_dynamic_base_32, tls_local_dynamic_base_64): Likewise.
3798         (tls_dynamic_gnu2_32, *tls_dynamic_lea_32): New patterns.
3799         (*tls_dynamic_call_32, *tls_dynamic_gnu2_combine_32): Likewise.
3800         (tls_dynamic_gnu2_64, *tls_dynamic_lea_64): Likewise.
3801         (*tls_dynamic_call_64, *tls_dynamic_gnu2_combine_64): Likewise.
3802         * config/i386/predicates.md (tls_modbase_operand): New.
3803         (tp_or_register_operand): New.
3804
3805 2006-01-18  Daniel Berlin  <dberlin@dberlin.org>
3806
3807         * ipa-reference.c (check_operand):  Allow FUNCTION_DECL.
3808         (look_for_address_of): Ditto.
3809         (ipa_init): Walk the function decls.
3810         (static_execute): Don't set readonly on FUNCTION_DECL's.
3811
3812 2006-01-18  Roger Sayle  <roger@eyesopen.com>
3813
3814         * config/i386/i386.md (shift spliter): Fix a a typo in the splitter
3815         for shifts where the source and destination registers are different.
3816
3817 2006-01-18  Paul Brook  <paul@codesourcery.com>
3818
3819         Merge from csl-arm-branch.
3820         2005-03-14  Julian Brown  <julian@codesourcery.com>
3821         * config/arm/lib1funcs.asm (ashldi3): Don't define on SymbianOS.
3822         (aeabi_llsl): Likewise.
3823         (ashrdi3): Likewise.
3824         (aeabi_lasr): Likewise.
3825         (lshrdi3): Likewise.
3826         (aeabi_llsr): Likewise.
3827         2005-03-10  Julian Brown  <julian@codesourcery.com>
3828         * config.gcc: Disable shared libgcc for SymbianOS.
3829         * config/arm/t-symbian (LIB2ADDEH): Include config/arm/pr-support.c.
3830
3831 2006-01-18  DJ Delorie  <dj@redhat.com>
3832
3833         * c-pragma.c (handle_pragma_diagnostic): New.
3834         (init_pragma): Register it.
3835         * doc/extend.texi: Document it.
3836
3837         * diagnostic.def: Add DK_UNSPECIFIED and DK_IGNORED.
3838         * diagnostic.h (diagnostic_classify_diagnostic): Declare.
3839         (diagnostic_context): Add classify_diagnostic[].
3840         * diagnostic.c (diagnostic_count_diagnostic): Don't count warnings
3841         as errors if they're overridden to DK_WARNING.
3842         (diagnostic_initialize): Initialize classify_diagnostic[].
3843         (diagnostic_set_kind_override): New.
3844         (diagnostic_report_diagnostic): Check for kind changes.
3845         * opts.c (common_handle_option): Take lang_mask.  Update callers.
3846         Handle OPT_Werror_.
3847         * common.opt (Werror=): New.
3848         * doc/invoke.texi: Document -Werror=*
3849
3850 2006-01-18  Jeff Law  <law@redhat.com>
3851
3852         * tree-vrp.c (test_for_singularity): Correct test for new
3853         min limit.  Use operand_equal_p rather than pointer equality
3854         for testing if new min/max values are equal.
3855
3856         * tree-ssa-propagate.c (substitute_and_fold): Delay simplifications
3857         using range information until after propagation and folding.
3858
3859 2006-01-18  Richard Henderson  <rth@redhat.com>
3860             Aldy Hernandez  <aldyh@redhat.com>
3861             Jakub Jelinek  <jakub@redhat.com>
3862             Diego Novillo  <dnovillo@redhat.com>
3863
3864         * omp-low.c: New file.
3865         * c-omp.c: New file.
3866
3867 2006-01-18  Richard Henderson  <rth@redhat.com>
3868             Jakub Jelinek  <jakub@redhat.com>
3869             Diego Novillo  <dnovillo@redhat.com>
3870
3871         * doc/invoke.texi: Document -fopenmp.
3872         * tree-dump.h (debug_function): Declare.
3873         * hooks.c (hook_bool_tree_bool_false): New function.
3874         (hook_tree_tree_null): Remove.
3875         (hook_tree_tree_tree_null): New.
3876         * hooks.h: Update to match.
3877         * tree-pretty-print.c (debug_tree_chain): New.
3878         (print_generic_expr): Handle TDF_CHAIN.
3879         (dump_generic_node): Handle BLOCK.
3880         Do not abort with incomplete SWITCH_EXPRs.
3881         Do not dump body of an OpenMP directive if TDF_SLIM is given.
3882         <case OMP_PARALLEL, OMP_FOR, OMP_SECTIONS>: Don't
3883         print space after directive name.
3884         <OMP_FOR>: Handle printing OMP_FOR_PRE_BODY.
3885         Handle OMP_MASTER and OMP_ORDERED.
3886         Handle printing of OMP_BODY just in one place, goto
3887         dump_omp_body in the rest of OMP_* nodes that have
3888         OMP_BODY.
3889         Don't handle clause nodes here.  Update omp statements to
3890         use dump_omp_clauses.
3891         Handle OMP_SINGLE, OMP_SECTIONS, OMP_SECTION,
3892         OMP_CLAUSE_ORDERED, OMP_CLAUSE_SCHEDULE, OMP_ATOMIC,
3893         OMP_CRITICAL, OMP_CLAUSE_NOWAIT, GOMP_CLAUSE_IF,
3894         GOMP_CLAUSE_NUM_THREADS, GOMP_FOR, GOMP_CLAUSE_SHARED,
3895         GOMP_CLAUSE_FIRSTPRIVATE, GOMP_CLAUSE_LASTPRIVATE,
3896         GOMP_CLAUSE_COPYIN and GOMP_CLAUSE_COPYPRIVATE.
3897         Adjust output for GOMP_PARALLEL.
3898         (dump_omp_clauses): New.
3899         (print_declaration): Dump DECL_VALUE_EXPR.
3900         (op_symbol_1): Split out of op_symbol.
3901         (dumping_stmts): Remove.  Update all users.
3902         * cgraph.c (cgraph_analyze_queue): New.
3903         (cgraph_add_new_function): New.
3904         * cgraph.h (cgraph_analyze_queue): Declare.
3905         (cgraph_add_new_function): Declare.
3906         (cgraph_lower_function): Remove.
3907         * tree.c (walk_tree): Walk OMP_CLAUSE_CHAIN of OMP_CLAUSE_*
3908         nodes.  Use switch for all nodes, handle most of IS_EXPR_CODE_CLASS
3909         and TYPE_P nodes in its default clause.
3910         (empty_body_p): New.
3911         (tree_range_check_failed): New.
3912         (build5_stat): New.
3913         * tree.h (OMP_CLAUSE_REDUCTION_INIT,
3914         OMP_CLAUSE_REDUCTION_MERGE,
3915         OMP_CLAUSE_REDUCTION_PLACEHOLDER,
3916         OMP_CLAUSE_PRIVATE_DEBUG,
3917         OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE, OMP_FOR_PRE_BODY,
3918         OMP_MASTER_BODY, OMP_ORDERED_BODY OMP_BODY,
3919         OMP_CLAUSES, OMP_CLAUSE_DECL, OMP_CLAUSE_DEFAULT_KIND,
3920         OMP_CLAUSE_CHAIN, OMP_CLAUSE_OUTER_DECL,
3921         OMP_CLAUSE_INNER_DECL, OMP_CLAUSE_NUM_THREADS_EXPR,
3922         OMP_CLAUSE_IF_EXPR, OMP_CLAUSE_SCHEDULE_CHUNK_EXPR,
3923         OMP_CLAUSE_SCHEDULE_CHUNK_SIZE. OMP_PARALLEL_VAR_INIT,
3924         OMP_PARALLEL_VAR_REDUC, OMP_FOR_VAR_INIT,
3925         OMP_FOR_VAR_LAST, OMP_FOR_VAR_REDUC,
3926         OMP_SECTIONS_VAR_INIT, OMP_SECTIONS_VAR_LAST,
3927         OMP_SECTIONS_VAR_REDUC, OMP_CLAUSE_REDUCTION_CODE
3928         OMP_SINGLE_CLAUSES, OMP_SINGLE_BODY,
3929         OMP_CLAUSE_SCHEDULE_CHUNK_SIZE, OMP_SECTION_BODY,
3930         OMP_CRITICAL_NAME, OMP_CRITICAL_BODY): New.
3931         (TREE_RANGE_CHECK): New.
3932         (empty_body_p): Declare.
3933         (enum omp_clause_default_kind): New.
3934         (build_string_literal): Declare.
3935         (enum omp_clause_schedule_kind, OMP_CLAUSE_SCHEDULE_KIND): New.
3936         (build5_stat, build5): Declare.
3937         * tree-pass.h (TDF_CHAIN): Define.
3938         * tree-pass.h (PROP_gimple_lomp): Define.
3939         (pass_lower_omp): Declare.
3940         * diagnostic.h (debug_tree_chain): Declare.
3941         * builtins.c (get_builtin_sync_mode): Use 0 as last argument to
3942         mode_for_size.
3943         (expand_builtin): Handle sync BUILT_IN_*_16 builtins.
3944         * builtins.c (build_string_literal): Make extern.
3945         * gcc.c (include_spec_function): New.
3946         (static_spec_functions): Add it.
3947         (main): Move load of libgomp.spec ...
3948         (LINK_COMMAND_SPEC): ... here.
3949         (link_gomp_spec): New.
3950         (static_specs): Include it.
3951         (LINK_COMMAND_SPEC): Add link_gomp.
3952         (GOMP_SELF_SPECS): New.
3953         (driver_self_specs): Include it.
3954         (switch_matches): Don't mark inline.
3955         (main): Load libgomp.spec.
3956         * tree-gimple.c (is_gimple_stmt): True for OMP_MASTER,
3957         OMP_ORDERED, OMP_CRITICAL, OMP_SECTIONS, OMP_SECTION,
3958         and OMP_SINGLE, OMP_FOR and OMP_PARALLEL.
3959         * tree-gimple.h (enum omp_parallel): Declare.
3960         (determine_parallel_type): Declare.
3961         (omp_firstprivatize_variable): Declare.
3962         (omp_reduction_init): Declare.
3963         (diagnose_omp_structured_block_errors): Declare.
3964         (struct walk_stmt_info): Add want_return_expr.
3965         (struct walk_stmt_info): Add want_bind_expr, want_locations.
3966         (find_omp_clause): Declare.
3967         (insert_field_into_struct): Declare.
3968         (struct walk_stmt_info): Move from tree-nested.c
3969         (walk_stmts): Declare.
3970         * c-cppbuiltin.c (c_cpp_builtins): If -fopenmp, #define _OPENMP
3971         to 200505.
3972         * cgraphunit.c (cgraph_lower_function): Make static.
3973         (cgraph_finalize_pending_functions): New.
3974         (cgraph_finalize_function): Call it.
3975         (cgraph_finalize_compilation_unit): Likewise.
3976         * builtin-types.def (BT_I16, BT_FN_I16_VPTR_I16,
3977         BT_FN_BOOL_VPTR_I16_I16, BT_FN_I16_VPTR_I16_I16): Add.
3978         (BT_FN_UINT_UINT): New.
3979         (DEF_FUNCTION_TYPE_6, DEF_FUNCTION_TYPE_7,
3980         DEF_FUNCTION_TYPE_VAR_4): Document.
3981         (BT_PTR_LONG, BT_PTR_PTR, BT_FN_BOOL, BT_FN_INT,
3982         BT_FN_VOID_PTRPTR, BT_PTR_FN_VOID_PTR,
3983         BT_FN_BOOL_LONGPTR_LONGPTR, BT_FN_VOID_OMPFN_PTR_UINT,
3984         BT_FN_VOID_OMPFN_PTR_UINT_UINT,
3985         BT_FN_BOOL_LONG_LONG_LONG_LONGPTR_LONGPTR,
3986         BT_FN_BOOL_LONG_LONG_LONG_LONG_LONGPTR_LONGPTR,
3987         BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG,
3988         BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG_LONG): New.
3989         * builtins.def: Update DEF_BUILTIN comment to include COND argument.
3990         Move all DEF_SYNC_BUILTIN () and DEF_GOMP_BUILTIN () builtins
3991         into separate files.
3992         (DEF_GOMP_BUILTIN): New.
3993         (BUILT_IN_OMP_GET_THREAD_NUM, BUILT_IN_GOMP_BARRIER,
3994         BUILT_IN_GOMP_CRITICAL_START, BUILT_IN_GOMP_CRITICAL_END,
3995         BUILT_IN_GOMP_CRITICAL_NAME_START, BUILT_IN_GOMP_CRITICAL_NAME_END,
3996         BUILT_IN_GOMP_LOOP_STATIC_START, BUILT_IN_GOMP_LOOP_DYNAMIC_START,
3997         BUILT_IN_GOMP_LOOP_GUIDED_START, BUILT_IN_GOMP_LOOP_RUNTIME_START,
3998         BUILT_IN_GOMP_LOOP_ORDERED_STATIC_START,
3999         BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_START,
4000         BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_START,
4001         BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_START,
4002         BUILT_IN_GOMP_LOOP_STATIC_NEXT, BUILT_IN_GOMP_LOOP_DYNAMIC_NEXT,
4003         BUILT_IN_GOMP_LOOP_GUIDED_NEXT, BUILT_IN_GOMP_LOOP_RUNTIME_NEXT,
4004         BUILT_IN_GOMP_LOOP_ORDERED_STATIC_NEXT,
4005         BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_NEXT,
4006         BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_NEXT,
4007         BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_NEXT,
4008         BUILT_IN_GOMP_PARALLEL_LOOP_STATIC_START,
4009         BUILT_IN_GOMP_PARALLEL_LOOP_DYNAMIC_START,
4010         BUILT_IN_GOMP_PARALLEL_LOOP_GUIDED_START,
4011         BUILT_IN_GOMP_PARALLEL_LOOP_RUNTIME_START,
4012         BUILT_IN_GOMP_LOOP_END, BUILT_IN_GOMP_LOOP_END_NOWAIT,
4013         BUILT_IN_GOMP_ORDERED_START, BUILT_IN_GOMP_ORDERED_END,
4014         BUILT_IN_GOMP_PARALLEL_START, BUILT_IN_GOMP_PARALLEL_END,
4015         BUILT_IN_GOMP_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_NEXT,
4016         BUILT_IN_GOMP_PARALLEL_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_END,
4017         BUILT_IN_GOMP_SECTIONS_END_NOWAIT, BUILT_IN_GOMP_SINGLE_START,
4018         BUILT_IN_GOMP_SINGLE_COPY_START, BUILT_IN_GOMP_SINGLE_COPY_END): New.
4019         * sync-builtins.def: New file, moved from builtins.def.
4020         * omp-builtins.def: New file, moved from builtins.def.
4021         * c-objc-common.h (LANG_HOOKS_OMP_PREDETERMINED_SHARING): Redefine.
4022         * gimple-low.c (lower_function_body): Clear data.
4023         (lower_stmt): Do not handle COMPOUND_EXPR.
4024         Remove call to print_node_brief.
4025         * c-tree.h (c_finish_omp_clauses): New prototype.
4026         (C_DECL_THREADPRIVATE_P): Define.
4027         (lookup_name_no_remap, c_omp_remap_private): Remove
4028         (c_begin_omp_parallel, c_finish_omp_parallel): Update.
4029         (check_for_loop_decls): Update decl.
4030         (lookup_name_no_remap, c_omp_remap_private): Declare.
4031         (build_indirect_ref, build_modify_expr, pushdecl,
4032         pushdecl_top_level): Move to c-common.h.
4033         * dwarf2out.c (loc_descriptor_from_tree_1): Don't set unsignedp
4034         before the switch, but just in the 2 places that need it.
4035         * c-decl.c (diagnose_mismatched_decls): Do not check for
4036         mismatched thread-local attributes when OLDDECL is marked
4037         threadprivate and NEWDECL has no thread-local attributes.
4038         (merge_decls): Merge C_DECL_THREADPRIVATE_P.
4039         (c_gimple_diagnostics_recursively): Rename from
4040         c_warn_unused_result_recursively.  Invoke
4041         diagnose_omp_structured_block_errors.
4042         (check_for_loop_decls): Return a singular decl found.
4043         * langhooks.c (lhd_omp_predetermined_sharing): Return
4044         OMP_CLAUSE_DEFAULT_SHARED for DECL_ARTIFICIAL decls.
4045         (lhd_omp_firstprivatize_type_sizes): New.
4046         (lhd_omp_assignment): New.
4047         (lhd_omp_predetermined_sharing): New.
4048         * langhooks.h (struct gimplify_omp_ctx): Forward declare.
4049         (struct lang_hooks_for_types): Add
4050         omp_firstprivatize_type_sizes, omp_privatize_by_reference,
4051         omp_predetermined_sharing, omp_disregard_value_expr,
4052         omp_private_debug_clause, omp_clause_default_ctor,
4053         omp_clause_copy_ctor, omp_clause_assign_op, omp_clause_dtor.
4054         (c_finish_omp_clauses): New.
4055         (c_finish_bc_stmt): Diagnose break within omp for.
4056         (c_begin_omp_parallel, c_finish_omp_parallel): New.
4057         (build_unary_op): Return error_mark after reporting
4058         a readonly_error.
4059         (build_modify_expr): Likewise.
4060         * gimplify.c: Include optabs.h and pointer-set.h.
4061         (enum gimplify_omp_var_data): Declare.
4062         (struct gimplify_omp_ctx): Declare.
4063         (struct gimplify_ctx): Add fields prev_context, combined_pre_p
4064         and combined_ctxp.
4065         (gimplify_ctxp, gimplify_omp_ctxp): New local variables.
4066         (push_gimplify_context, pop_gimplify_context): Allow nesting.
4067         (splay_tree_compare_decl_uid): New.
4068         (new_omp_context): New.
4069         (delete_omp_context): New.
4070         (gimple_add_tmp_var): Call omp_add_variable.
4071         (gimplify_bind_expr): Likewise.
4072         (gimplify_var_or_parm_decl): If omp_notice_variable returned
4073         true, disregard DECL_VALUE_EXPR on the decl if any.
4074         (gimplify_expr_in_ctx): New.
4075         (omp_firstprivatize_variable, omp_firstprivatize_type_sizes
4076         omp_add_variable, omp_notice_variable, omp_is_private
4077         gimplify_scan_omp_clauses, gimplify_adjust_omp_clauses_1
4078         gimplify_adjust_omp_clauses, gimplify_omp_parallel
4079         gimplify_omp_for, gimplify_omp_workshare, goa_lhs_expr_p
4080         gimplify_omp_atomic_fetch_op, goa_stabilize_expr
4081         gimplify_omp_atomic_pipeline, gimplify_omp_atomic_mutex
4082         gimplify_omp_atomic): New.
4083         (gimplify_expr): Handle OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
4084         OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
4085         OMP_CRITICAL and OMP_ATOMIC.
4086         (gimplify_body): Verify gimplify_ctxp is empty after gimplification.
4087         * c-pragma.h (enum pragma_kind): Add
4088         PRAGMA_OMP_ATOMIC, PRAGMA_OMP_BARRIER,
4089         PRAGMA_OMP_CRITICAL, PRAGMA_OMP_FLUSH, PRAGMA_OMP_FOR,
4090         PRAGMA_OMP_MASTER, PRAGMA_OMP_ORDERED,
4091         PRAGMA_OMP_PARALLEL, PRAGMA_OMP_PARALLEL_FOR,
4092         PRAGMA_OMP_PARALLEL_SECTIONS, PRAGMA_OMP_SECTION,
4093         PRAGMA_OMP_SECTIONS, PRAGMA_OMP_SINGLE,
4094         PRAGMA_OMP_THREADPRIVATE.
4095         * tree.def (OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
4096         OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
4097         OMP_CRITICAL, OMP_ATOMIC, OMP_CLAUSE_PRIVATE,
4098         OMP_CLAUSE_SHARED, OMP_CLAUSE_FIRSTPRIVATE,
4099         OMP_CLAUSE_LASTPRIVATE, OMP_CLAUSE_REDUCTION,
4100         OMP_CLAUSE_COPYIN, OMP_CLAUSE_COPYPRIVATE,
4101         OMP_CLAUSE_IF, OMP_CLAUSE_NUM_THREADS,
4102         OMP_CLAUSE_SCHEDULE, OMP_CLAUSE_NOWAIT,
4103         OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Define.
4104         * print-tree.c (print_node): Dump DECL_VALUE_EXPR.
4105         * tree-ssa-dce.c (find_control_dependence): Do not assume that
4106         ENTRY_BLOCK_PTR->next_bb == single_succ (ENTRY_BLOCK_PTR).
4107         * tree-nested.c (convert_call_expr): Call walk_body on OMP_BODY for
4108         OpenMP directives.
4109         (struct nesting_info): Add field_map,
4110         suppress_expansion, debug_var_chain.
4111         (create_nesting_tree): Initialize them.
4112         (lookup_field_for_decl): Use field_map.
4113         (get_nonlocal_debug_decl, get_local_debug_decl): New.
4114         (convert_local_omp_clauses): New.
4115         (finalize_nesting_tree_1): Add debug_var_chain to toplevel block.
4116         (walk_body): Split out of walk_function.
4117         (convert_nonlocal_omp_clauses, convert_local_omp_clauses): New.
4118         (convert_nonlocal_reference): Handle omp statements.
4119         (convert_local_reference): Likewise.
4120         (unnest_nesting_tree_1): Split out of finalize_nesting_tree_1.
4121         (unnest_nesting_tree): New.
4122         (lower_nested_functions): Call it.
4123         (insert_field_into_struct): Make extern.
4124         (struct walk_stmt_info): Move to tree-gimple.h.
4125         (walk_stmts): Make extern.
4126         * omp-builtins.def: New file.
4127         * tree-iterator.c (expr_only): Clarify comment.
4128         * c-common.h (pushdecl_top_level, pushdecl,
4129         build_modify_expr, build_indirect_ref,
4130         c_finish_omp_master, c_finish_omp_critical,
4131         c_finish_omp_ordered, c_finish_omp_barrier,
4132         c_finish_omp_atomic, c_finish_omp_flush,
4133         c_finish_omp_for, c_split_parallel_clauses,
4134         omp_clause_default_kind, c_omp_sharing_predetermined,
4135         c_omp_remap_decl): Declare.
4136         * Makefile.in (BUILTINS_DEF): Add omp-builtins.def.
4137         (OBJS-common): Add omp-low.o.
4138         (c-omp.o, omp-low.o): Add.
4139         (gimplify.o): Add dependency on $(OPTABS_H).
4140         (GTFILES): Add omp-low.c.
4141         (gt-stringpool.h): Add.
4142         * tree-cfg.c (set_bb_for_stmt): Do not update the
4143         block-to-labels map if we are currently expanding to RTL.
4144         (tree_node_can_be_shared): Remove unnecessary CONSTANT_CLASS_P
4145         checks.
4146         Handle IDENTIFIER_NODE.
4147         (tree_verify_flow_info): Do not ICE when emitting error
4148         messages about invalid labels.
4149         (dump_function_to_file): Reset CFUN before emitting the body
4150         of the function.
4151         (debug_function): New.
4152         * passes.c (init_optimization_passes): Schedule
4153         pass_lower_omp.
4154         * langhooks-def.h (lhd_omp_predetermined_sharing,
4155         lhd_omp_assignment, lhd_omp_firstprivatize_type_sizes):
4156         Declare.
4157         (LANG_HOOKS_OMP_FIRSTPRIVATIZE_TYPE_SIZES): Define.
4158         (LANG_HOOKS_FOR_TYPES_INITIALIZER): Use it.
4159         (LANG_HOOKS_OMP_PRIVATIZE_BY_REFERENCE,
4160         LANG_HOOKS_OMP_PREDETERMINED_SHARING,
4161         LANG_HOOKS_OMP_DISREGARD_VALUE_EXPR,
4162         LANG_HOOKS_OMP_PRIVATE_DEBUG_CLAUSE,
4163         LANG_HOOKS_OMP_CLAUSE_DEFAULT_CTOR,
4164         LANG_HOOKS_OMP_CLAUSE_COPY_CTOR,
4165         LANG_HOOKS_OMP_CLAUSE_ASSIGN_OP,
4166         LANG_HOOKS_OMP_CLAUSE_DTOR): Define.
4167         (LANG_HOOK_DECLS): Use them.
4168
4169 2006-01-18  Dmitry Kurochkin <dmitry.kurochkin@gmail.com>
4170             Richard Henderson  <rth@redhat.com>
4171             Jakub Jelinek  <jakub@redhat.com>
4172             Diego Novillo  <dnovillo@redhat.com>
4173
4174         * c-parser.c (pragma_omp_clause): Define.
4175         (c_parser_declaration_or_fndef): Document OpenMP syntax.
4176         (c_parser_compound_statement): Likewise.
4177         (c_parser_statement): Likewise.
4178         (c_parser_pragma): Handle omp pragmas.
4179         (OMP_FOR_CLAUSE_MASK, OMP_SECTIONS_CLAUSE_MASK,
4180         OMP_PARALLEL_CLAUSE_MASK, OMP_SINGLE_CLAUSE_MASK): Define.
4181         (c_parser_omp_clause_name, check_no_duplicate_clause,
4182         c_parser_omp_variable_list,
4183         c_parser_omp_var_list_parens, c_parser_omp_clause_copyin,
4184         c_parser_omp_clause_copyprivate,
4185         c_parser_omp_clause_default,
4186         c_parser_omp_clause_firstprivate, c_parser_omp_clause_if,
4187         c_parser_omp_clause_lastprivate,
4188         c_parser_omp_clause_nowait,
4189         c_parser_omp_clause_num_threads,
4190         c_parser_omp_clause_ordered, c_parser_omp_clause_private,
4191         c_parser_omp_clause_reduction,
4192         c_parser_omp_clause_schedule, c_parser_omp_clause_shared,
4193         c_parser_omp_all_clauses, c_parser_omp_structured_block,
4194         c_parser_omp_atomic, c_parser_omp_barrier,
4195         c_parser_omp_critical, c_parser_omp_flush,
4196         c_parser_omp_for_loop, c_parser_omp_for,
4197         c_parser_omp_master, c_parser_omp_ordered,
4198         c_parser_omp_sections_scope, c_parser_omp_sections,
4199         c_parser_omp_parallel, c_parser_omp_single,
4200         c_parser_omp_construct, c_parser_omp_threadprivate): New.
4201         * c-pragma.c (init_pragma): Do omp pragma registration here.
4202         * c.opt (fopenmp): New flag.
4203
4204 2006-01-18  Eric Christopher  <echristo@apple.com>
4205
4206         * gcc.c (GOMP_SELF_SPECS): Bracket in #ifndef/#endif.
4207         * config/darwin.h (GOMP_SELF_SPECS): Define.
4208
4209 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
4210
4211         * rtl.h: Remove the prototype for reg_alloc.
4212
4213 2006-01-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
4214
4215         PR target/25731
4216         * config.gcc (hppa*-*-linux*, hppa[12]*-*-hpux10*, hppa*64*-*-hpux11*,
4217         hppa[12]*-*-hpux11*): Override default shared libgcc version for both
4218         sjlj and dwarf2 exception handling.
4219         * pa/t-hpux-shlib (SHLIB_SOVERSION): New make variable.
4220         Rework to allow overriding SHLIB_EXT and SHLIB_SOVERSION.
4221         * pa/pa.c (function_value): Treat complex and vector types as
4222         aggregates.
4223         (function_arg): Likewise.  Only pass scalar floats in the floating
4224         point argument registers.
4225         * pa/t-slibgcc-dwarf-ver: New file.
4226         * pa/t-slibgcc-sjlj-ver: New file.
4227         * pa/t-slibgcc-elf-ver: Delete file.
4228
4229 2006-01-19  Alan Modra  <amodra@bigpond.net.au>
4230
4231         * config/rs6000/rs6000.c (rs6000_assemble_integer): Correct
4232         unlikely_test_section_p test.
4233
4234 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
4235
4236         * mode-switching.c (optimize_mode_switching): Make it static.
4237         * basic-block.h: Remove the prototype for
4238         optimize_mode_switching.
4239
4240         * modulo-sched.c (sms_schedule): Make it static.
4241         * rtl.h: Remove the prototype for sms_schedule.
4242
4243         * postreload-gcse.c (gcse_after_reload_main): Make it static.
4244         * rtl.h: Remove the prototype for gcse_after_reload_main.
4245
4246         * reg-stack.c (reg_to_stack): Make it static.
4247         * rtl.h: Remove the prototype for reg_to_stack.
4248
4249         * regrename.c (regrename_optimize, copyprop_hardreg_forward):
4250         Make them static.
4251         * rtl.h: Remove the prototypes for regrename_optimize and
4252         copyprop_hardreg_forward.
4253
4254 2006-01-18  Eric Botcazou  <ebotcazou@adacore.com>
4255
4256         * config/alpha/alpha.c (alpha_split_tfmode_pair): Rename into
4257         alpha_split_tmode_pair.  Add 'mode' and 'fixup_overlap' arguments.
4258         Test against the appropriate null constant for the mode.
4259         If 'fixup_overlap' is true, swap the operands if they overlap.
4260         (alpha_split_tfmode_frobsign): Adjust call to alpha_split_tfmode_pair.
4261         * config/alpha/alpha-protos.h (alpha_split_tfmode_pair): Rename into
4262         alpha_split_tmode_pair and adjust for above change.
4263         * config/alpha/alpha.md (movtf_internal): Adjust call to
4264         alpha_split_tfmode_pair and rely on it to swap the operands.
4265         (movti_internal): New insn and post-reload splitter.
4266         (movti): New expander.
4267
4268 2006-01-18  Philippe De Muyter  <phdm@macqel.be>
4269
4270         * config/m68k/m68k.md (*addsi3_5200): Allow addq/subq to memory
4271         operands.
4272
4273 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
4274
4275         * rtlanal.c (global_reg_mentioned_p_1,
4276         global_reg_mentioned_p): Remove.
4277         * rtl.h: Remove the prototype for global_reg_mentioned_p.
4278
4279         * flow.c (initialize_uninitialized_subregs): Make it static.
4280         * rtl.h: Remove the prototype for
4281         initialize_uninitialized_subregs.
4282
4283         * function.c (instantiate_virtual_regs): Make it static.
4284         * function.h: Remove the prototype for
4285         instantiate_virtual_regs.
4286
4287         * regmove.c (regmove_optimize, combine_stack_adjustments):
4288         Make them static.
4289         * rtl.h: Remove the prototypes for regmove_optimize and
4290         combine_stack_adjustments.
4291
4292 2006-01-17  Roger Sayle  <roger@eyesopen.com>
4293
4294         * config/i386/i386.c (COSTS_N_BYTES): New macro.
4295         (size_cost): Encode costs in bytes so that a reg-reg addition is
4296         equivalent to COSTS_N_INSNS(1).
4297         (override_options): Use the size_cost.branch_cost as the default
4298         ix86_branch_cost when optimizing for size.
4299
4300 2006-01-18  Ben Elliston  <bje@au.ibm.com>
4301
4302         * Makefile.in (D32PBIT_FUNCS): New.
4303         (D64PBIT_FUNCS, D128PBIT_FUNCS): Likewise.
4304         (libgcc.mk): Set D32PBIT, D64PBIT, D128PBIT, D32PBIT_FUNCS,
4305         D64PBIT_FUNCS and D128PBIT_FUNCS.
4306         (LIBGCC_DEPS): Include $(D32PBIT), $(D64PBIT), $(D128PBIT).
4307         * mklibgcc.in Bring in the DFP support code if D32PBIT, D64PBIT or
4308         D128PBIT are set.
4309         (decnumber_dep): Define.
4310         * doc/libgcc.texi (Decimal float library routines): New node.
4311         * config/dfp-bit.h, config/dfp-bit.c: New files.
4312
4313 2006-01-18  Ben Elliston  <bje@au.ibm.com>
4314
4315         * expr.c (emit_move_change_mode): Always adjust addresses, not
4316         just during reload.  Copy replacements only during reload.
4317         (emit_move_insn_1): Move MODE_DECIMAL_FLOAT modes by invoking
4318         emit_move_via_integer.
4319
4320 2006-01-17  Shantonu Sen  <ssen@opendarwin.org>
4321
4322         * Makefile.in (check-%, check-consistency): Use $${srcdir}
4323         instead of $(srcdir) and ${srcdir}.
4324
4325 2006-01-17  Richard Earnshaw  <rearnsha@arm.com>
4326
4327         PR target/592
4328         PR middle-end/11135
4329         * arm.h (struct machine_function): Add pic_reg.
4330         * arm.c (arm_pic_register): Make unsigned.
4331         (arm_override_options): Only set arm_pic_register if
4332         TARGET_SINGLE_PIC_BASE.
4333         (use_return_insn): Only test for a pic register if it is fixed.
4334         (arm_compute_save_reg0_reg12_mask): Likewise.
4335         (thumb_compute_save_reg_mask): Likewise.
4336         (legitimate_pic_operand): Factor out some known invariants.
4337         (legitimize_pic_address): If we don't have a fixed pic register,
4338         then set up a pseudo in the function entry sequence.  Handle the
4339         pic base being in a pseudo.
4340         (arm_load_pic_register): Handle the pic register being in a pseudo.
4341         (arm_expand_prologue): Only set up the pic register if it is fixed.
4342         (thumb_expand_prologue): Likewise.
4343         * arm.md (pic_load_addr_based): Handle the pic base being a pseudo.
4344         (pic_load_addr_based_insn): Likewise.
4345         (builtin_setjmp_receiver): Don't restore the pic base if it isn't
4346         fixed.
4347
4348 2006-01-18  Ben Elliston  <bje@au.ibm.com>
4349
4350         * config/rs6000/rs6000.c (rs6000_hard_regno_mode_ok): Reject
4351         decimal float modes for all floating point registers.
4352
4353         * config/rs6000/predicates.md (reg_or_mem_operand): Pair up
4354         match_code "mem" with match_test "macho_lo_sum_memory_operand".
4355
4356 2006-01-17  Jakub Jelinek  <jakub@redhat.com>
4357
4358         PR c/25682
4359         * c-typeck.c (build_unary_op): Fold offsetof-like expressions
4360         even when the pointer is not NULL.
4361
4362 2006-01-16  Ian Lance Taylor  <ian@airs.com>
4363
4364         * common.opt (ftoplevel-reorder): New option.
4365         * cgraph.c (cgraph_asm_nodes): New global variable.
4366         (cgraph_asm_last_node): New static variable.
4367         (cgraph_order): New global variable.
4368         (cgraph_create_node): Set new order field.
4369         (cgraph_varpool_node): Likewise.
4370         (decide_is_variable_needed): Return true if not
4371         flag_toplevel_reorder.
4372         (cgraph_add_asm_node): New function.
4373         * cgraph.h (struct cgraph_node): Add order field.
4374         (struct cgraph_varpool_node): Add order field.
4375         (struct cgraph_asm_node): Define.
4376         (cgraph_asm_nodes, cgraph_order): Declare.
4377         (cgraph_add_asm_node): Declare.
4378         * cgraphunit.c (cgraph_varpool_assemble_decl): New static
4379         function.
4380         (cgraph_varpool_assemble_pending_decls): Call it.
4381         (cgraph_output_pending_asms): New static function.
4382         (cgraph_finalize_compilation_unit): Call it.
4383         (struct cgraph_order_sort): Define.
4384         (cgraph_output_in_order): New static function.
4385         (cgraph_optimize): Call cgraph_output_pending_asms.  Add code for
4386         !flag_toplevel_reorder case.
4387         * c-parser.c: Include "cgraph.h".
4388         (c_parser_asm_definition): Call cgraph_add_asm_node rather than
4389         assemble_asm.
4390         * Makefile.in (CRTSTUFF_CFLAGS): Use -fno-toplevel-reorder rather
4391         than -fno-unit-at-a-time.
4392         * doc/invoke.texi (Option Summary): Mention
4393         -fno-toplevel-reorder.
4394         (Optimize Options): Document -fno-toplevel-reorder.  Mention it in
4395         -funit-at-a-time documentation.
4396
4397 2006-01-17  Hans-Peter Nilsson  <hp@axis.com>
4398             Kazu Hirata  <kazu@codesourcery.com>
4399
4400         * Makefile.in (FUNCTION_H, LAMBDA_H): Use $(TREE_H), not tree.h.
4401
4402 2006-01-17  Kazu Hirata  <kazu@codesourcery.com>
4403
4404         * Makefile.in (FUNCTION_H): New.  Use it instead of
4405         function.h throughout the file.
4406         * function.h: Include tree.h.
4407
4408 2006-01-17  Ben Elliston  <bje@au.ibm.com>
4409
4410         * recog.c: Separate some functions with whitespace.
4411
4412 2006-01-16  Richard Henderson  <rth@redhat.com>
4413
4414         Merge from gomp branch:
4415         * Makefile.in (TREE_INLINE_H): New.  Use it as needed.
4416         * tree-inline.h (struct copy_body_data): Move from tree-inline.c
4417         and rename from struct inline_data.  Rename callee* to dst*;
4418         caller* to src*; add copy_decl hook, transform_call_graph_edges,
4419         transform_new_cfg, transform_return_to_modify, and
4420         transform_lang_insert_block flags; remove cloning_p, versioning_p,
4421         update_clones_p.
4422         (copy_body_r, insert_decl_map, remap_decl, remap_type): Declare.
4423         (copy_decl_for_dup): Remove.
4424         * tree-inline.c (struct inline_data): Move to header.
4425         (insert_decl_map): Export.
4426         (remap_decl): Update for member name changes.  Use copy_decl hook.
4427         Allow for replacement to be a non-decl.  Remove dead code.
4428         (remap_type_1): Check for existing mapping.
4429         (remap_type): Export.
4430         (remap_decls): Update for member name changes.
4431         (remap_block, copy_bb, copy_cfg_body, copy_generic_body): Likewise.
4432         (copy_body, setup_one_parameter, declare_return_variable): Likewise.
4433         (expand_call_inline, optimize_inline_calls, clone_body): Likewise.
4434         (copy_tree_r, mark_local_for_remap_r, unsave_expr_now): Likewise.
4435         (tree_function_versioning, build_duplicate_type): Likewise.
4436         (copy_body_r): Likewise.  Export.
4437         (copy_decl_for_dup): Split into ...
4438         (copy_decl_for_dup_finish, copy_decl_to_var,
4439         copy_decl_no_change, copy_decl_maybe_to_var): ... these.
4440         (replace_ref_tree, inlining_p): Remove.
4441
4442 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
4443
4444         * ifcvt.c (if_convert): Make it static.
4445         * rtl.h: Remove the prototype for if_convert.
4446
4447         * local-alloc.c (local_alloc): Make it static.
4448         * rtl.h: Remove the prototype for local_alloc.
4449
4450         * loop.c (loop_optimize): Make it static.
4451         * cfgloop.h: Remove the prototype for loop_optimize.
4452         * rtl.h: Likewise.
4453
4454 2006-01-16  DJ Delorie  <dj@redhat.com>
4455
4456         * reload.c (reg_overlap_mentioned_for_reload_p): Handle subregs of
4457         mems.
4458
4459 2006-01-16  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
4460
4461         * pa.md: Disparage copies between general and floating-point registers
4462         in 32-bit move patterns.
4463
4464 2006-01-16  H.J. Lu  <hongjiu.lu@intel.com>
4465
4466         PR testsuite/25741
4467         * Makefile.in (check-%): Depend on site.exp instead of
4468         $(TESTSUITEDIR)/site.exp. Run "runtest" in separate language
4469         directories.
4470
4471 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
4472
4473         * global.c (global_alloc): Make it static.
4474         * rtl.h: Remove the prototype for global_alloc.
4475
4476 2006-01-16  Richard Guenther  <rguenther@suse.de>
4477
4478         * tree-ssa-alias.c (struct used_part): Add write_only field.
4479         (get_or_create_used_part_for): Initialize it to true.
4480         (create_overlap_variables_for): Don't create structure variables
4481         for structures that only are written to.
4482         (find_used_portions): Handle MODIFY_EXPR to track whether a
4483         structure is only written to.
4484
4485 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
4486
4487         * bb-reorder.c (partition_hot_cold_basic_blocks): Make it
4488         static.
4489         * basic-block.h: Remove the prototype for
4490         partition_hot_cold_basic_blocks.
4491
4492 2006-01-16  Rafael Ãvila de EspÃï¿½ndola <rafael.espindola@gmail.com>
4493
4494         * cppspec.c (lang_specific_spec_functions): Remove.
4495         * gcc.c (lookup_spec_function): Use static_spec_functions directly.
4496         * gcc.h (lang_specific_spec_functions): Remove.
4497         * gccspec.c (lang_specific_spec_functions): Remove.
4498
4499 2006-01-16  Paolo Bonzini  <bonzini@gnu.org>
4500
4501         * combine.c (record_value_for_reg): Invalidate registers
4502         if INSN is null.
4503         (record_dead_and_set_regs_1): Likewise, by passing them to
4504         record_value_for_reg.
4505         (record_dead_and_set_regs): Invalidate stores made by a
4506         call.  We do not combine across a call, but we still
4507         relied on equivalences.
4508
4509 2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>
4510
4511         * tree-vrp.c (extract_range_from_binary_expr): Cope with
4512         vrp_int_const_binop returning non-constant nodes.
4513
4514 2006-01-16  Paul Brook  <paul@codesourcery.com>
4515
4516         * config/m68k/m68k.c (output_move_const_into_data_reg):
4517         Output correct mnemonic for mvz and mvs.
4518
4519 2006-01-16  Gabor Loki  <loki@gcc.gnu.org>
4520
4521         * rtl-factoring.c: Add sequence abstraction algorithm.
4522         * cfgcleanup.c (outgoing_edges_match): Extra checks.
4523         (try_crossjump_to_edge): Avoid deleting preserve label when redirecting
4524         ABNORMAL edges.
4525         (block_has_preserve_label): New function.
4526         * common.opt: Register new pass.
4527         * Makefile.in: Ditto.
4528         * passes.c: Ditto.
4529         * timevar.def: Ditto.
4530         * tree-pass.h: Ditto.
4531         * emit-rtl.c (make_jump_insn_raw): Remove forward decl.
4532         * rtl.h (make_jump_insn_raw): Add forward decl.
4533         * doc/invoke.texi: Add documentation for -frtl-abstract-sequences.
4534
4535 2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>
4536             Roger Sayle  <roger@eyesopen.com>
4537
4538         * fold-const.c (fold_minmax): New static function.
4539         (fold_binary) <MIN_EXPR>: Call it.
4540         <MAX_EXPR>: Likewise.
4541         * stor-layout.c (place_field): Use DECL_SIZE consistently
4542         in the computation of the new record size.
4543
4544 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
4545
4546         * cse.c (cse_condition_code_reg): Make it static.
4547         * rtl.h: Remove the prototype for cse_condition_code_reg.
4548
4549         * combine.c (combine_instructions): Make it static.
4550         * rtl.h: Remove the prototype for combine_instructions.
4551
4552 2006-01-15  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
4553
4554         PR target/25168
4555         * tree.c (get_file_function_name_long): Concatenate the first global
4556         object name with a string derived from the input filename of the object
4557         for type "F".
4558
4559 2006-01-16  Ben Elliston  <bje@au.ibm.com>
4560
4561         * config/i386/winnt-stubs.c: Update FSF address.
4562         * config/xtensa/ieee754-df.S: Ditto.
4563         * config/xtensa/ieee754-sf.S: Ditto.
4564
4565 2006-01-14  Ian Lance Taylor  <ian@airs.com>
4566
4567         * ifcvt.c (noce_init_if_info): New static function, broken out of
4568         noce_process_if_block.
4569         (noce_process_if_block): Call noce_init_if_info.
4570         (check_cond_move_block): New static function.
4571         (cond_move_process_if_block): New static function.
4572         (process_if_block): Call cond_move_process_if_block.
4573
4574 2006-01-15  Kazu Hirata  <kazu@codesourcery.com>
4575
4576         * cselib.c (hash_table): Rename to cselib_hash_table.
4577         (cselib_clear_table, discard_useless_values,
4578         remove_useless_values, cselib_lookup_mem, cselib_lookup,
4579         cselib_init, cselib_finish): Adjust uses of hash_table.
4580
4581 2006-01-14  Kazu Hirata  <kazu@codesourcery.com>
4582
4583         PR tree-optimization/25485
4584         * tree-vrp.c (extract_range_from_binary_expr): Handle cases
4585         where one of the operands of TRUTH_AND_EXPR and TRUTH_OR_EXPR
4586         is known to be false and true, respectively.
4587
4588 2006-01-14  Richard Guenther  <rguenther@suse.de>
4589
4590         PR tree-optimization/22548
4591         PR tree-optimization/22555
4592         PR tree-optimization/22501
4593         * Makefile.in (tree-ssa-structalias.o): Depend on $(PARAMS_H).
4594         * params.def (salias-max-array-elements): New parameter.
4595         * params.h (SALIAS_MAX_ARRAY_ELEMENTS): Define.
4596         * doc/invoke.texi (salias-max-array-elements): Document.
4597         * tree-flow-inline.h (var_can_have_subvars): We also handle
4598         arrays now.
4599         * tree-ssa-alias.c (find_used_portions): Handle ARRAY_REF like
4600         COMPONENT_REF.
4601         * tree-ssa-structalias.c (params.h): Include.
4602         (push_fields_onto_fieldstack): Handle ARRAY_TYPE.
4603         (find_func_aliases): Handle multiple constraints from ARRAY_REF.
4604         (get_constraint_for): For ADDR_EXPR operating on something
4605         containing an ARRAY_REF, add all subvars to the solution.
4606         (handle_ptr_arith): Handle ARRAY_TYPE like RECORD_TYPE types.
4607         * tree-ssa-operands.c (parse_ssa_operands): Handle ARRAY_REF
4608         for creating MUST_DEFs.
4609         (get_expr_operands): Treat ARRAY_REF like COMPONENT_REF wrt subvars.
4610
4611 2006-01-14  Zdenek Dvorak <dvorakz@suse.cz>
4612
4613         * tree-ssa-loop-niter.c (number_of_iterations_cond): Split into several
4614         functions.
4615         (number_of_iterations_ne, number_of_iterations_lt_to_ne,
4616         assert_no_overflow_lt, assert_loop_rolls_lt, number_of_iterations_lt,
4617         number_of_iterations_le): New functions.
4618         (number_of_iterations_special): Removed.
4619         (number_of_iterations_exit): Do not use number_of_iterations_special.
4620         * tree.c (unsigned_type_for): Always return integer type.
4621
4622 2006-01-14  Steven Bosscher  <stevenb.gcc@gmail.com>
4623         Richard Guenther  <rguenther@suse.de>
4624
4625         PR rtl-optimization/24257
4626         * gcse.c (find_moveable_store): Only consider a store movable
4627         when the SET_SRC of the insn can be assigned to a register.
4628
4629 2006-01-14  Ian Lance Taylor  <ian@airs.com>
4630
4631         * tree.c (tree_not_class_check_failed): New function.
4632         * tree.h (NON_TYPE_CHECK): Call tree_not_class_check_failed.
4633         (tree_not_class_check_failed): Declare.
4634
4635 2006-01-13  Ian Lance Taylor  <ian@airs.com>
4636
4637         * reload1.c (do_output_reload): Add assertion rejecting a
4638         CALL_INSN.
4639
4640 2006-01-13  Adam Nemet  <anemet@caviumnetworks.com>
4641
4642         * combine.c (struct reg_stat): Add new fields truncation_label and
4643         truncated_to_mode.
4644         (record_value_for_reg): Reset truncated_to_mode.
4645         (record_truncated_value): New function.
4646         (check_promoted_subreg): Call it.  Rename to check_conversions.
4647         (combine_instructions): Rename check_promoted_subreg to
4648         check_conversions.
4649         (reg_truncated_to_mode): New function.
4650         (make_extraction): Use it.  Check TRULY_NOOP_TRUNCATION.
4651         (gen_lowpart_or_truncate): New function.
4652         (force_to_mode): Use it instead of gen_lowpart.
4653
4654 2006-01-13  Diego Novillo  <dnovillo@redhat.com>
4655
4656         * tree-ssa-alias.c (add_type_alias): Fix typo.  Test whether
4657         VAR is a tag, not its type tag.
4658
4659 2006-01-13  Alexandre Oliva  <aoliva@redhat.com>
4660
4661         * config/i386/sse.md (*vec_extractv2di_1_sse2): Reorder
4662         alternatives to match style of other entries.
4663         (*vec_extractv2di_1_sse): Likewise.  Fix mode attr.
4664
4665 2006-01-13  Daniel Berlin  <dberlin@dberlin.org>
4666
4667         PR tree-optimization/25771
4668         * tree-ssa-pre.c (insert_extra_phis): Don't insert merges of abnormal
4669         SSA_NAMES.
4670
4671 2006-01-13  Andrew Pinski  <pinskia@physics.uc.edu>
4672
4673         PR tree-opt/24365
4674         * tree-inline.c (declare_return_variable): If the return variable
4675         was marked as a non gimple complex, set the return slot variable
4676         to be a non gimple comple variable.
4677
4678 2006-01-13  Richard Guenther  <rguenther@suse.de>
4679
4680         * builtins.c (expand_builtin_sincos): New function.
4681         (expand_builtin_mathfn_3): Remove dead code, sin and cos
4682         do not set errno.
4683         (expand_builtin): Expand sincos using expand_builtin_sincos.
4684
4685 2006-01-12  DJ Delorie  <dj@redhat.com>
4686
4687         * config/m32c/shift.md: Rewrite: Allow arbitrary operands for
4688         shift counts, separate SI shifts for m32c vs m16c, pass shift type
4689         so that constant shifts can be split.
4690         * config/m32c/m32c.c (m32c_const_ok_for_constraint_p): Add In6.
4691         (m32c_valid_pointer_mode): Make static.
4692         (shift_gen_func_for): New.
4693         (m32c_prepare_shift): Use it.  Split large const shifts into
4694         multiple shifts.
4695         * config/m32c/predicates.md (shiftcount_operand): Allow more
4696         general operands.
4697         (longshiftcount_operand): New.
4698         * doc/md.texi (Machine Constraints): Document In6.
4699
4700 2006-01-13  Ben Elliston  <bje@au.ibm.com>
4701
4702         * doc/tm.texi (Data Output): Add REAL_VALUE_TO_TARGET_DECIMAL32,
4703         REAL_VALUE_TO_TARGET_DECIMAL64 and REAL_VALUE_TO_TARGET_DECIMAL128
4704         documentation.
4705
4706 2006-01-12  Daniel Berlin  <dberlin@dberlin.org>
4707
4708         * tree-ssa-operands.c (add_call_clobber_ops): Use SFT_PARENT_VAR
4709         to try to avoid clobbering pieces of structures when we know
4710         something about the whole structure.
4711         * tree-ssa-alias.c (create_sft): Set SFT_PARENT_VAR
4712
4713 2006-01-13  Ben Elliston  <bje@au.ibm.com>
4714
4715         * doc/rtl.texi (Insns): Remove statement that libcalls cannot
4716         return in memory, as this is no limitation is no longer present.
4717
4718 2006-01-12  DJ Delorie  <dj@redhat.com>
4719
4720         * config/m32c/addsub.md (addhi3): Add two more alternatives, for
4721         mova with fb, and for fb+0 -> An.
4722
4723         * config/m32c/mov.md (peephole2): Fix enabling logic.
4724
4725         * config/m32c/m32c.h (CTOR_LIST_BEGIN, CTOR_LIST_END,
4726         DTOR_LIST_BEGIN, DTOR_LIST_END, CTORS_SECTION_ASM_OP,
4727         DTORS_SECTION_ASM_OP, INIT_ARRAY_SECTION_ASM_OP,
4728         FINI_ARRAY_SECTION_ASM_OP): Define.
4729
4730         * config/m32c/m32c.c (m32c_legitimize_address): Remove temporary
4731         variable.
4732         (m32c_legitimize_reload_address): New logic to reload FB to An.
4733         (m32c_output_reg_push): Add newline.
4734         (m32c_output_reg_pop): Likewise.
4735
4736 2006-01-12  Ulrich Weigand  <uweigand@de.ibm.com>
4737
4738         * struct-equiv.c (find_dying_inputs): Fix off-by-one bug.
4739
4740 2006-01-11  Andrew Pinski  <pinskia@physics.uc.edu>
4741
4742         * config/i386/darwin.h (SUBTARGET_ENCODE_SECTION_INFO): Define.
4743
4744 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
4745
4746         * config/sh/predicates.md (sh_rep_vec): Add parallel to
4747         match_code.
4748
4749 2006-01-11  Ben Elliston  <bje@au.ibm.com>
4750
4751         * rtlanal.c (find_reg_note): Assert insn is not null.
4752
4753 2006-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>
4754
4755         * df-scan.c (df_hard_reg_init): Move declaration of i outside
4756         ifdef.
4757
4758 2006-01-11  Jeff Law  <law@redhat.com>
4759
4760         * tree-ssa-threadupdate.c (threaded_edges): New VEC to
4761         hold edge pairs.
4762         (mark_threaded_blocks, register_jump_thread): New functions.
4763         (thread_through_all_blocks): Remove unwanted argument.  No
4764         longer rely on e->aux to communicate thread target info.
4765         Call mark_threaded_blocks.  Release the threaded_blocks
4766         bitmap and threaded_edges vector when complete.
4767         * tree-ssa-dom.c (struct edge_info): Remove redirection_target field.
4768         (threaded_blocks): Remove.
4769         (tree_ssa_dominator_optimize): Remove initialization and
4770         finalization of threaded_blocks.  Simplify call to
4771         thread_through_all_blocks.
4772         (thread_across_edge): Call register_jump_thread rather than
4773         storing thread information into e->aux.
4774         (free_all_edge_infos): Simplify now that e->aux is no longer
4775         used to communicate with thread_through_all_blocks.
4776         * tree-flow.h (thread_through_all_blocks): Update prototype.
4777         (register_jump_thread): Prototype.
4778
4779 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
4780
4781         * df-core.c (df_compact_blocks, df_bb_replace): Use
4782         SET_BASIC_BLOCK instead of BASIC_BLOCK.
4783
4784 2006-01-11  Richard Guenther  <rguenther@suse.de>
4785
4786         PR tree-optimization/25734
4787         * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Do not
4788         stop propagation after successful propagation to the LHS.
4789
4790 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
4791
4792         * basic-block.h (control_flow_graph): Change the type of
4793         x_basic_block_info to VEC(basic_block,gc) *.
4794         (BASIC_BLOCK_FOR_FUNCTION, BASIC_BLOCK): Adjust the uses of
4795         basic_block_info.
4796         (SET_BASIC_BLOCK): New.
4797         * cfg.c (compact_blocks, expunge_block): Use SET_BASIC_BLOCK
4798         instead of BASIC_BLOCK when assigning to BASIC_BLOCK.
4799         * cfgbuild.c (find_basic_blocks): Likewise.
4800         * cfglayout.c (fixup_reorder_chain): Likewise.
4801         * cfgrtl.c (create_basic_block_structure,
4802         rtl_create_basic_block): Likewise.
4803         * ifcvt.c (find_if_case_1): Likewise.
4804         * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb):
4805         Likewise.
4806
4807 2006-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>
4808
4809         * Makefile.in: Removed rotted odf.c entry.
4810
4811 2006-01-11  Hans-Peter Nilsson  <hp@axis.com>
4812
4813         PR target/25706
4814         * config/cris/cris.md ("*extopqihi_side", "*extop<mode>si_side")
4815         ("*extop<mode>si_swap_side_biap", "*extop<mode>si_swap_side",
4816         ("*extopqihi", "*extop<mode>si", "*extop<mode>si_swap"): Use %E
4817         output pattern modifier, not %e.
4818         * config/cris/cris.c (cris_op_str): Update comment about pattern
4819         modifier.
4820         (cris_print_operand) <case 'e'>: Clear cris_output_insn_is_bound
4821         before falling through into...
4822         <case 'E'>: Redefined from old 'e' case.
4823
4824 2006-01-11  Jan Hubicka  <jh@suse.cz>
4825
4826         PR target/25042
4827         * i386.c (ix86_init_mmx_sse_builtins): Do not delcare float128
4828
4829 2006-01-11  Jan Hubicka  <jh@suse.cz>
4830
4831         * i386.h (TARGET_DECOMPOSE_LEA): Kill.
4832         * i386.c (x86_decompose_lea): Kill.
4833         (ix86_rtx_costs): Kill.
4834
4835 2006-01-11  Jan Hubicka  <jh@suse.cz>
4836
4837         * cgraph.c (cgraph_insert_node_to_hashtable): New function.
4838         * cgraph.h (cgraph_node): Add inline_decl.
4839         (cgraph_insert_node_to_hashtable): Declare.
4840         (save_inline_function_body): Declare.
4841         * cgraphunit.c (verify_cgraph_node): Inline edges might point to inline
4842         clones.
4843         (cgraph_preserve_function_body_p): Do not presrve when dump is enabled.
4844         (cgraph_function_versioning): Update call of tree_function_versioning.
4845         (save_inline_function_body): New function.
4846         * function.h (struct function): Kill saved_eh, saved_cfg, saved_args,
4847         saved_static_chain_decl, saved_blocks and saved-unexpanded_var_list.
4848         * ipa-inline.c (cgraph_mark_inline_edge): Look for inline clones.
4849         (cgraph_default_inline_p): Likewise.
4850         (cgraph_decide_inlining_incrementally): Likewise.
4851         * tree-inline.c (inline_data): Kill saving_p add update_clones_p.
4852         (copy_bb): Kill saving; do updating of clones.
4853         (copy_cfg_body): Kill saving.
4854         (initialize_inlined-parameters): Likewise.
4855         (expand_call_inline): Likewise.
4856         (save_body): Kill.
4857         (tree_function_versioning): New parameter "update_clones".
4858         (inlining_p): Kill saving.
4859         * tree-inline.h (tree_function_versioning): Update prototype.
4860         * tree-optimize.c (tree_rest_of_compilation): Use clonning instead of
4861         saving.
4862
4863 2006-01-11  Ian Lance Taylor <ian@airs.com>
4864
4865         * combine.c (struct undo): Remove is_int.  Enumify types of undos.
4866         Allow undoing set of machine mode.
4867         (do_SUBST): Use enums instead of is_int.
4868         (do_SUBST_MODE): New function.
4869         (SUBST_MODE): New macro.
4870         (try_combine): Use SUBST_MODE/PUT_MODE instead of generating a new
4871         reg and trying to replace reg_regno_rtx with a new register.
4872         (undo_all): Use new enums, handle undoing a PUT_MODE change.
4873         (simplify_set): Use SUBST_MODE.
4874         (distribute_notes): Remove code that tried to update reg notes
4875         for regno_reg_rtx changes.
4876
4877 2006-01-11  Paolo Bonzini  <bonzini@gnu.org>
4878
4879         PR tree-optimization/23109
4880         PR tree-optimization/23948
4881         PR tree-optimization/24123
4882
4883         * Makefile.in (tree-ssa-math-opts.o): Adjust dependencies.
4884         * tree-cfg.c (single_noncomplex_succ): New.
4885         * tree-flow.h (single_noncomplex_succ): Declare it.
4886         * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
4887         * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
4888         (struct occurrence, occ_head, occ_pool, is_divide_by, compute_merit,
4889         insert_bb, register_division_in, insert_reciprocals,
4890         replace_reciprocal, free_bb): New.
4891         (execute_cse_reciprocals_1): Rewritten.
4892         (execute_cse_reciprocals): Adjust calls to execute_cse_reciprocals_1.
4893         Do not commit any edge insertion.  Always compute dominators and
4894         create the allocation pool.
4895         * target-def.h (TARGET_MIN_DIVISIONS_FOR_RECIP_MUL): New.
4896         * target.h (struct gcc_target): Add min_divistions_for_recip_mul.
4897         * targhooks.c (default_min_divistions_for_recip_mul): New.
4898         * targhooks.h (default_min_divistions_for_recip_mul): New prototype.
4899         * passes.c (init_optimization_passes): Run recip after tree loop
4900         optimizations.
4901         * doc/tm.texi (Misc): Document TARGET_MIN_DIVISIONS_FOR_RECIP_MUL.
4902
4903 2006-01-11  Danny Berlin <dberlin@dberlin.org>
4904             Kenneth Zadeck <zadeck@naturalbridge.com>
4905
4906         * df.h (DF_SCAN, DF_RU, DF_RD, DF_LR, DF_UR, DF_UREC, DF_CHAIN,
4907         DF_RI, DF_LAST_PROBLEM_PLUS1, DF_DU_CHAIN, DF_UD_CHAIN,
4908         DF_REF_TYPE_NAMES, DF_HARD_REGS, DF_EQUIV_NOTES, DF_SUBREGS,
4909         DF_SCAN_BB_INFO, DF_RU_BB_INFO, DF_RD_BB_INFO, DF_LR_BB_INFO,
4910         DF_UR_BB_INFO, DF_UREC_BB_INFO, DF_LIVE_IN, DF_LIVE_OUT,
4911         DF_RA_LIVE_IN, DF_RA_LIVE_OUT, DF_UPWARD_LIVE_IN,
4912         DF_UPWARD_LIVE_OUT, DF_REF_REAL_REG, DF_REF_REGNO,
4913         DF_REF_REAL_LOC, DF_REF_REG, DF_REF_LOC, DF_REF_BB, DF_REF_BBNO,
4914         DF_REF_INSN, DF_REF_INSN_UID, DF_REF_TYPE, DF_REF_CHAIN,
4915         DF_REF_ID, DF_REF_FLAGS, DF_REF_NEXT_REG, DF_REF_PREV_REG,
4916         DF_REF_NEXT_REF, DF_REF_DATA, DF_REF_REG_DEF_P, DF_REF_REG_USE_P,
4917         DF_REF_REG_MEM_STORE_P, DF_REF_REG_MEM_LOAD_P, DF_REF_REG_MEM_P,
4918         DF_DEFS_SIZE, DF_DEFS_GET, DF_DEFS_SET, DF_USES_SIZE, DF_USES_GET,
4919         DF_USES_SET, DF_REG_SIZE, DF_REG_DEF_GET, DF_REG_DEF_SET,
4920         DF_REG_USE_GET, DF_REG_USE_SET, DF_REGNO_FIRST_DEF,
4921         DF_REGNO_LAST_USE, DF_INSN_SIZE, DF_INSN_GET, DF_INSN_SET,
4922         DF_INSN_CONTAINS_ASM, DF_INSN_LUID, DF_INSN_DEFS, DF_INSN_USES,
4923         DF_INSN_UID_GET, DF_INSN_UID_LUID, DF_INSN_UID_DEFS,
4924         DF_INSN_UID_USES, DF_SCAN_INITIAL, DF_SCAN_GLOBAL,
4925         DF_SCAN_POST_ALLOC): New macros.
4926         (df_flow_dir, df_ref_type, df_ref_flags, df_alloc_function,
4927         df_free_bb_function, df_local_compute_function, df_init_function,
4928         df_dataflow_function, df_confluence_function_0,
4929         df_confluence_function_n, df_transfer_function,
4930         df_finalizer_function, df_free_function, df_dump_problem_function,
4931         df_problem, dataflow, df_insn_info, df_reg_info, df_ref, df_link,
4932         df_ref_info, df, df_map, df_scan_bb_info, df_ru_bb_info,
4933         df_ru_bb_info, df_rd_bb_info, df_lr_bb_info, df_ur_bb_info,
4934         df_urec_bb_info, ) New types.
4935         (df_invalidated_by_call, df_all_hard_regs, df_state) New public
4936         variables.
4937         (df_init, df_add_problem, df_set_blocks, df_finish, df_analyze,
4938         df_analyze_simple_change_some_blocks,
4939         df_analyze_simple_change_one_block, df_compact_blocks,
4940         df_bb_replace, df_bb_regno_last_use_find,
4941         df_bb_regno_first_def_find, df_bb_regno_last_def_find,
4942         df_insn_regno_def_p, df_find_def, df_find_use,
4943         df_iterative_dataflow, df_dump, df_chain_dump, df_refs_chain_dump,
4944         df_regs_chain_dump, df_insn_debug, df_insn_debug_regno,
4945         df_regno_debug, df_ref_debug, debug_df_insn, debug_df_regno,
4946         debug_df_reg, debug_df_defno, debug_df_useno, debug_df_ref,
4947         debug_df_chain, df_get_dependent_problem, df_chain_create,
4948         df_chain_unlink, df_chain_copy, df_get_live_in, df_get_live_out,
4949         df_grow_bb_info, df_chain_dump, df_print_bb_index,
4950         df_ru_add_problem, df_ru_get_bb_info, df_rd_add_problem,
4951         df_rd_get_bb_info, df_lr_add_problem, df_lr_get_bb_info,
4952         df_ur_add_problem, df_ur_get_bb_info, df_urec_add_problem,
4953         df_urec_get_bb_info, df_chain_add_problem, df_ri_add_problem,
4954         df_reg_lifetime, df_scan_get_bb_info, df_scan_add_problem,
4955         df_rescan_blocks, df_ref_create, df_get_artificial_defs,
4956         df_get_artificial_uses, df_reg_chain_create, df_reg_chain_unlink,
4957         df_ref_remove, df_insn_refs_delete, df_refs_delete,
4958         df_reorganize_refs, df_set_state, df_hard_reg_init,
4959         df_read_modify_subreg_p) New public functions.
4960         * df-core.c: The core dataflow solver and glue routines for rtl
4961         dataflow.
4962         (df_init, df_add_problem, df_set_blocks, df_finish,
4963         df_hybrid_search_forward, df_hybrid_search_backward,
4964         df_iterative_dataflow, df_prune_to_subcfg, df_analyze_problem,
4965         df_analyze, df_get_bb_info, df_set_bb_info, df_bb_replace,
4966         df_bb_regno_last_use_find, df_bb_regno_first_def_find,
4967         df_bb_regno_last_def_find, df_insn_regno_def_p, df_find_def,
4968         df_reg_defined, df_find_use, df_reg_used, df_dump,
4969         df_refs_chain_dump, df_regs_chain_dump, df_insn_debug,
4970         df_insn_debug_regno, df_regno_debug, df_ref_debug, debug_df_insn,
4971         debug_df_reg, debug_df_regno, debug_df_ref debug_df_defno,
4972         debug_df_useno, reset_df_after_reload): New functions.
4973         * df-scan.c: The scanning fuctions, once in df.c, completely
4974         rewritten so that they now fully model the functionality of
4975         register usage at the backend.
4976         (df_scan_free_internal, df_scan_get_bb_info, df_scan_set_bb_info,
4977         df_scan_free_bb_info, df_scan_alloc, df_scan_free, df_scan_dump,
4978         df_scan_add_problem, df_grow_reg_info, df_grow_ref_info,
4979         df_grow_insn_info, df_rescan_blocks, df_ref_create,
4980         df_get_artificial_defs, df_get_artificial_uses,
4981         df_reg_chain_create, df_ref_unlink, df_reg_chain_unlink,
4982         df_ref_remove, df_insn_create_insn_record, df_insn_refs_delete,
4983         df_refs_delete, df_reorganize_refs, df_set_state,
4984         df_ref_create_structure, df_ref_record, df_read_modify_subreg_p,
4985         df_def_record_1, df_defs_record, df_uses_record,
4986         df_insn_contains_asm_1, df_insn_contains_asm, df_insn_refs_record,
4987         df_has_eh_preds, df_bb_refs_record, df_refs_record, df_mark_reg,
4988         df_record_exit_block_uses, df_hard_reg_init): New functions.
4989
4990         * df-problems.c: Seven concrete dataflow problems that use the
4991         scanning in df-scan.c and are solved by the engine in df-core.c.
4992         (df_get_dependent_problem, df_chain_create, df_chain_unlink,
4993         df_chain_copy, df_get_live_in, df_get_live_out, df_grow_bb_info,
4994         df_chain_dump, df_print_bb_index, df_ref_bitmap, df_set_seen,
4995         df_unset_seen, df_ru_get_bb_info, df_ru_set_bb_info,
4996         df_ru_free_bb_info, df_ru_alloc,
4997         df_ru_bb_local_compute_process_def,
4998         df_ru_bb_local_compute_process_use, df_ru_bb_local_compute,
4999         df_ru_local_compute, df_ru_init_solution, df_ru_confluence_n,
5000         df_ru_transfer_function, df_ru_free, df_ru_dump,
5001         df_ru_add_problem, df_rd_get_bb_info, df_rd_set_bb_info,
5002         df_rd_free_bb_info, df_rd_alloc,
5003         df_rd_bb_local_compute_process_def, df_rd_bb_local_compute,
5004         df_rd_local_compute, df_rd_init_solution, df_rd_confluence_n,
5005         df_rd_transfer_function, df_rd_free, df_rd_dump,
5006         df_rd_add_problem, df_lr_get_bb_info, df_lr_set_bb_info,
5007         df_lr_free_bb_info, df_lr_alloc, df_lr_bb_local_compute,
5008         df_lr_local_compute, df_lr_init, df_lr_confluence_0,
5009         df_lr_confluence_n, df_lr_transfer_function, df_lr_free,
5010         df_lr_dump, df_lr_add_problem, df_ur_get_bb_info,
5011         df_ur_set_bb_info, df_ur_free_bb_info, df_ur_alloc,
5012         df_ur_bb_local_compute, df_ur_local_compute, df_ur_init,
5013         df_ur_local_finalize, df_ur_confluence_n, df_ur_transfer_function,
5014         df_ur_free, df_ur_dump, df_ur_add_problem, df_urec_get_bb_info,
5015         df_urec_set_bb_info, df_urec_free_bb_info, df_urec_alloc,
5016         df_urec_mark_reg_change, df_urec_check_earlyclobber,
5017         df_urec_mark_reg_use_for_earlyclobber,
5018         df_urec_mark_reg_use_for_earlyclobber_1, df_urec_bb_local_compute,
5019         df_urec_local_compute, df_urec_init, df_urec_local_finalize,
5020         df_urec_confluence_n, df_urec_transfer_function, df_urec_free,
5021         df_urec_dump, df_urec_add_problem, df_chain_alloc,
5022         df_chain_create_bb_process_use, df_chain_create_bb,
5023         df_chain_finalize, df_chain_free, df_chains_dump,
5024         df_chain_add_problem, df_ri_alloc, df_ri_bb_compute,
5025         df_ri_compute, df_ri_free, df_ri_dump, df_ri_add_problem,
5026         df_reg_lifetime): New functions.
5027         * df.c: Deleted file.
5028         * ddg.c (create_ddg_dep_no_link, build_inter_loop_deps): Made code
5029         consistent with new df api.
5030         * modulo-sched.c (sms_schedule, rest_of_handle_sms,
5031         rest_of_handle_sms): Ditto.
5032         * web.c (unionfind_union, union_defs, entry_register, web_main):
5033         Ditto.
5034         * loop_invariant.c (invariant_for_use, hash_invariant_expr_1,
5035         invariant_expr_equal_p, find_defs, check_dependencies,
5036         find_invariant_insn, find_invariants_to_move, move_invariant_reg,
5037         free_inv_motion_data, move_loop_invariants): Ditto.
5038         * Makefile.in (df.c, df-scan.c df-problems.c df-core.c):
5039         Update dependencies.
5040         (odf.c): Added defective entry that was deleted later in day.
5041         * sched-deps.c (sched_analyze_1): Ditto.
5042
5043 2006-01-11  Zdenek Dvorak <dvorakz@suse.cz>
5044
5045         * tree-ssa-operands.c (get_expr_operands): Record addressable
5046         variables directly.  Do not call add_stmt_operands for CONST_DECLs
5047         and ARRAY_DECLs.
5048         (get_indirect_ref_operands): Remove handling of *(&a + offset) case.
5049         (add_stmt_operands): Handle only objects satisfying SSA_VAR_P.
5050
5051 2006-01-11  Ben Elliston  <bje@au.ibm.com>
5052
5053         * config/i386/i386.c (ix86_return_in_memory): Fix comment: this
5054         function returns true in the positive case.
5055
5056 2006-01-10  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
5057
5058         PR target/20754
5059         * config/pa/pa.md: Create separate 32 and 64-bit move patterns
5060         for SI, DI, SF and DF modes.  Add alternatives to copy between
5061         general and floating point registers to the 32-bit patterns.
5062         * config/pa/pa-64.h (SECONDARY_MEMORY_NEEDED_RTX): Delete undefine.
5063         * config/pa/pa.h (SECONDARY_MEMORY_NEEDED_RTX): Delete define.
5064         (SECONDARY_MEMORY_NEEDED): Secondary memory is only needed when
5065         generating 64-bit code.
5066         * config/pa/pa.c (output_move_double): Handle copies between general
5067         and floating registers.
5068
5069 2006-01-10  Stuart Hastings  <stuart@apple.com>
5070
5071         * config/i386/i386.md (set_got): Update.
5072         (set_got_labelled): New.  (UNSPEC_LD_MPIC): New.
5073         (builtin_setjmp_receiver): Mach-O support.
5074         * config/i386/darwin.h (TARGET_ASM_FILE_END) Define.
5075         (GOT_SYMBOL_NAME): Define.
5076         (FORCE_PREFERRED_STACK_BOUNDARY_IN_MAIN): New.
5077         (TARGET_DEEP_BRANCH_PREDICTION): Remove.
5078         * config/i386/i386.c (override_options): Revise for Darwin.
5079         (USE_HIDDEN_LINKONCE): Enable for Mach-O.  (ix86_file_end): Mach-O
5080         support.  (darwin_x86_file_end): New.  (output_set_got): Add label
5081         parameter, revise for Mach-O.  (x86_output_mi_thunk): Likewise.
5082         * config/i386/i386-protos.h (output_set_got): Likewise.
5083         * config/darwin.c (machopic_legitimize_pic_address): Update
5084         regs_ever_live[].
5085
5086 2006-01-10  Kaz Kojima  <kkojima@gcc.gnu.org>
5087
5088         * config/sh/sh.h (SH5_WOULD_BE_PARTIAL_NREGS): Use GET_MODE_SIZE
5089         when MODE isn't BLKmode.
5090
5091 2006-01-10  Eric Botcazou  <ebotcazou@libertysurf.fr>
5092
5093         PR rtl-optimization/25367
5094         * config/sparc/sparc.h (HARD_REGNO_RENAME_OK): New macro.
5095
5096 2006-01-10  Hans-Peter Nilsson  <hp@axis.com>
5097
5098         PR target/25718
5099         * config/cris/cris.md ("uminsi3"): Don't use 8- or 16-bit sizes
5100         for a negative bound.
5101
5102 2006-01-10  Richard Guenther  <rguenther@suse.de>
5103
5104         * tree-ssa-structalias.c (get_constraint_for_component_ref):
5105         Never override with anything constraint.
5106
5107 2006-01-10  Jan Beulich  <jbeulich@novell.com>
5108
5109         * config/i386/i386.c (ix86_data_alignment): Don't force alignment to
5110         256 bits when optimize_size.
5111
5112 2006-01-10  Jan Beulich  <jbeulich@novell.com>
5113
5114         * config/i386/netware.h (TARGET_SUBTARGET_DEFAULT): Include
5115         MASK_ALIGN_DOUBLE.
5116         * config/i386/nwld.h (LINK_SPEC): Add --extensions:GNU option.
5117         * config/i386/t-nwld (SHLIB_LINK): Insert spaces between expr
5118         arguments.
5119
5120 2006-01-10  Ben Elliston  <bje@au.ibm.com>
5121
5122         * config/rs6000/predicates.md (easy_fp_constant): Discount decimal
5123         float modes.
5124         * config/rs6000/rs6000.c (rs6000_scalar_mode_supported_p): New.
5125         (TARGET_SCALAR_MODE_SUPPORTED_P): Define.
5126         (USE_FP_FOR_ARG): Reject decimal float modes.
5127         (function_arg_advance): Likewise.
5128         (output_toc): Handle emitting TDmode, DDmode and SDmode constants.
5129         (rs6000_handle_altivec_attribute): Do not permit decimal floating
5130         point types in AltiVec vectors.
5131         (rs6000_function_value): Use GP_ARG_RETURN for decimal floats.
5132         (rs6000_libcall_value): Likewise.
5133
5134 2006-01-09  Bob Wilson  <bob.wilson@acm.org>
5135
5136         * config/xtensa/ieee754-df.S: New file.
5137         * config/xtensa/ieee754-sf.S: New file.
5138         * config/xtensa/t-xtensa (LIB2FUNCS_EXTRA): Remove fp-bit.c & dp-bit.c.
5139         (LIB1ASMFUNCS): Add SFmode and DFmode floating-point functions.
5140         * config/xtensa/lib1funcs.asm: Include ieee754-df.S and ieee754-sf.S.
5141
5142 2006-01-09  Kazu Hirata  <kazu@codesourcery.com>
5143
5144         * config/sh/predicates.md (binary_float_operator,
5145         binary_logical_operator, commutative_float_operator,
5146         equality_comparison_operator, greater_comparison_operator,
5147         less_comparison_operator, logical_operator,
5148         noncommutative_float_operator, shift_operator,
5149         symbol_ref_operand, unary_float_operator): Remove redundant
5150         conditionals.
5151
5152 2006-01-09  Jeff Law  <law@redhat.com>
5153
5154         * tree-ssa-dom.c (simplify_cond_and_lookup_avail_expr): Remove
5155         code to propagate the RHS of a cast into COND_EXPR_COND.  Remove
5156         now unused arguments.  Callers updated.
5157         (eliminate_redundant_computations): Remove now unused arguments,
5158         callers updated.
5159         (local_fold): Remove, no longer used.
5160         (find_equivalent_equality_comparison): Removed from tree-ssa-dom.c
5161         and moved to...
5162         * tree-ssa-forwprop.c (find_equivalent_equality_comparison): Here.
5163         (simplify_cond): New function.
5164         (forward_propagate_into_cond): Call simplify_cond.
5165
5166 2006-01-09  Alexandre Oliva  <aoliva@redhat.com>
5167
5168         * config/i386/sse.md (*vec_extractv2di_1_sse2): New.
5169         (*vec_extractv2di_1_sse): New.
5170
5171 2006-01-09  Ben Elliston  <bje@au.ibm.com>
5172
5173         * config/rs6000/rs6000.h (GO_IF_LEGITIMATE_ADDRESS): Typo fix.
5174
5175 2006-01-08  Richard Guenther  <rguenther@suse.de>
5176
5177         * tree-ssa-structalias.c (get_constraint_for): Remove
5178         anyoffset argument.
5179         (get_constraint_for_component_ref): Likewise.
5180         (do_deref): Likewise.
5181         (get_constraint_for): Likewise.
5182         (do_structure_copy): Likewise.
5183         (handle_ptr_arith): Likewise.
5184         (find_func_aliases): Likewise.  Remove unused need_anyoffset
5185         variable.
5186
5187 2006-01-08  J"orn Rennecke  <joern.rennecke@st.com>
5188             Kaz Kojima  <kkojima@gcc.gnu.org>
5189
5190         * config/sh/sh.h (CONST_OK_FOR_K16): Define.
5191         (CONST_OK_FOR_K): Add CONST_OK_FOR_K16 case.
5192         (EXTRA_CONSTRAINT_C16): Remove.
5193         (EXTRA_CONSTRAINT_Css, EXTRA_CONSTRAINT_Csu): Define.
5194         (EXTRA_CONSTRAINT_C): Remove EXTRA_CONSTRAINT_C16 case and add
5195         EXTRA_CONSTRAINT_Css and EXTRA_CONSTRAINT_Csu cases.
5196         * config/sh/sh.c (print_operand): Handle unsigned 16-bit symbolic
5197         constants of SHmedia.  Handle nested constant expressions of
5198         SHmedia correctly.
5199         (andcosts): Fix the costs for SHmedia constants.
5200         (sh_rtx_costs): Take account of outer_code for SHmedia constants.
5201         * config/sh/sh.md (*movsi_media): Use Css constraint instead of C16.
5202         (*movsi_media_nofpu, *movqi_media, *movhi_media): Likewise.
5203         (*movdi_media, *movdi_media_nofpu, movv8qi_i, movv2hi_i): Likewise.
5204         (movv4hi_i, movv2si_i): Likewise.
5205         (movsi_const): Adjust the second operand of ior so to match with
5206         the Csu constraint.
5207         (movdi_const, movdi_const_32bit): Likewise.
5208         (movdi_const_16bit+1): Don't sign-extend LOW.
5209         (movdi_const_16bit+2): Likewise.  Remove the zero_extend and truncate
5210         step.
5211         (*double_shori): Fix the split condition.  Use GEN_INT instead
5212         of get_int_mode calls.  Mask lower 16-bit of the argument of
5213         the last GEN_INT.
5214         (sym2GOTPLT): Remove.
5215         (symGOTPLT2reg): Replace gen_sym2GOTPLT with gen_rtx_CONST and
5216         gen_rtx_UNSPEC.
5217         * config/sh/predicates.md (arith_operand): Use EXTRA_CONSTRAINT_Css
5218         instead of EXTRA_CONSTRAINT_C16.
5219
5220 2006-01-07  Ian Lance Taylor  <ian@airs.com>
5221             David Edelsohn  <edelsohn@gnu.org>
5222
5223         PR rtl-optimization/25662
5224         * optabs.c (simplify_expand_binop): Use simplify_binary_operation
5225         for constant operands instead of simplify_gen_binary.
5226         * simplify-rtx.c (simplify_gen_binary): Swap commutative operands
5227         after trying simplify_binary_operation
5228
5229 2006-01-06  Daniel Berlin  <dberlin@dberlin.org>
5230
5231         * tree.c (iterative_hash_expr): Hash decls based on UID.
5232
5233 2006-01-06  Eric Christopher  <echristo@apple.com>
5234
5235         * doc/tm.texi (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): Document.
5236         (TARGET_UNWIND_EMIT): Fix spelling.
5237         * target.h (gcc_target): Add except_table_label.
5238         * except.c (output_function_exception_table): Use.
5239         * varasm.c (default_emit_except_table_label): New.
5240         * target-def.h (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): New default
5241         define.
5242         (asm_out): Add here.
5243         * output.h (default_emit_except_table_label): Prototype.
5244         * config/darwin-protos.h (darwin_emit_except_table_label): Ditto.
5245         * config/darwin.c (darwin_emit_except_table_label): Define.
5246         * config/darwin.h (TARGET_ASM_EMIT_EXCEPT_TABLE): Ditto.
5247
5248 2006-01-06  Zdenek Dvorak <dvorakz@suse.cz>
5249
5250         PR tree-optimization/18527
5251         * tree-ssa-loop-niter.c (number_of_iterations_cond,
5252         number_of_iterations_special, number_of_iterations_exit):
5253         Move base and step of an iv to a single structure.  Add
5254         no_overflow flag, and use it in # of iterations analysis.
5255         * tree-scalar-evolution.c (analyze_scalar_evolution_in_loop): Add
5256         folded_casts argument.
5257         (simple_iv): Pass base and step in a structure.  Set no_overflow
5258         flag.
5259         (scev_const_prop): Add argument to analyze_scalar_evolution_in_loop.
5260         Evaluate expensiveness of computing # of iterations instead of
5261         the final expression.
5262         * tree-scalar-evolution.h (affine_iv): New structure.
5263         (simple_iv): Declaration changed.
5264         * tree-chrec.c (chrec_apply): Handle chrecs containing symbols.
5265         * tree-ssa-loop-ivopts.c (determine_biv_step, find_givs_in_stmt_scev,
5266         find_givs_in_stmt): Changed due to simple_iv change.
5267
5268 2006-01-06  Jeff Law  <law@redhat.com>
5269
5270         PR ada/24994
5271         * tree-cfg.c (bsi_replace): Rename final argument from
5272         PRESERVE_EH_INFO to UPDATE_EH_INFO.  Fix typo in last
5273         change (stmt -> orig_stmt).
5274         * tree-eh.c (verify_eh_throw_stmt_node): New function.
5275         (bsi_remove): Add new argument.  Remove EH information
5276         if requested.
5277         (verify_eh_throw_table_statements): New function.
5278         (bsi_remove): Add new argument REMOVE_EH_INFO.  All callers
5279         updated.
5280         * tree-optimize.c (execute_free_cfg_annotations): Verify
5281         the EH throw statement table after removing annotations.
5282         * except.h (verify_eh_throw_table_statements): Prototype.
5283         * tree-flow.h (bsi_remove): Update prototype.
5284         * tree-vrp.c (remove_range_assertions): Add new argument to
5285         bsi_remove call.
5286         * tree-ssa-loop-im.c (move_computations_stmt): Likewise.
5287         * tree-complex.c (expand_complex_div_wide): Likewise.
5288         * tree-ssa-threadupdate.c (remove_ctrl_stmt_and_useless_edges): Likewise
5289         * tree-tailcall.c (eliminate_tailcall): Likewise.
5290         * tree-ssa-dse.c (dse_optimize_stmt): Likewise.
5291         * tree-ssa-loop-ivopts.c (remove_statement): Likewise.
5292         * tree-nrv.c (tree_nrv): Likewise.
5293         * tree-vectorizer.c (slpeel_make_loop_iterate_ntimes): Likewise.
5294         * tree-if-conv.c (tree_if_convert_cond_expr): Likewise.
5295         (combine_blocks): Likewise.
5296         * tree-ssa-phiopt.c (replace_phi_edge_with_variable): Likewise.
5297         * tree-cfgcleanup.c (cleanup_ctrl_expr_graph): Likewise.
5298         (cleanup_control_flow): Likewise.
5299         (remove_forwarder_block): Likewise.
5300         * tree-ssa-pre.c (remove_dead_inserted_code): Likewise.
5301         * tree-sra.c (sra_replace): Likewise.
5302         * tree-ssa-forwprop.c (forward_propagate_into_cond): Likewise.
5303         (forward_propagate_single_use_vars): Likewise.
5304         * tree-ssa-dce.c (remove_dead_stmt): Likewise.
5305         * tree-inline.c (expand_call_inline): Likewise.
5306         * tree-vect-transform.c (vect_transform_loop): Likewise.
5307         * tree-outof-ssa.c (rewrite_trees): Likewise.
5308         * tree-cfg.c (make_goto_expr_edges): Likewise.
5309         (cleanup_dead_labels): Likewise.
5310         (tree_merge_blocks, remove_bb, disband_implicit_edges): Likewise.
5311         (bsi_move_before, bsi_move_after): Likewise.
5312         (bsi_move_to_bb_end, try_redirect_by_replacing_jump): Likewise
5313         (tree_redirect_edge_and_branch, tree_split_block): Likewise.
5314
5315 2006-01-06  Andrew Pinski  <pinskia@physics.uc.edu>
5316
5317         PR tree-opt/25528
5318         * tree-ssa-alias.c (find_used_portions): Handle REALPART_EXPR
5319         and IMAGPART_EXPR.
5320         * tree-flow-inline.h (var_can_have_subvars): Handle complex types
5321         on non gimple variables.  Also add checks at the top for decls and
5322         mtags.
5323         * tree-ssa-structalias.c (push_fields_onto_fieldstack): Handle
5324         complex types.
5325         * tree-ssa-operands.c (parse_ssa_operands): Handle REALPART_EXPR
5326         and IMAGPART_EXPR for creating MUST_DEFs.
5327         (get_expr_operands): Handle SSA_NAME, STRUCT_FIELD_TAG, TYPE_MEMORY_TAG,
5328         and NAME_MEMORY_TAG separately from the DECLs.
5329
5330 2006-01-06  Richard Guenther  <rguenther@suse.de>
5331
5332         * tree-dfa.c (mark_new_vars_to_rename): Create stmt
5333         annotation, if necessary.
5334         * tree-ssa-pre.c (create_expression_by_pieces): Remove
5335         redundant calls to update_stmt.
5336         * tree-ssa-forwprop.c (tidy_after_forward_propagate_addr):
5337         Likewise.
5338
5339 2006-01-05  Richard Henderson  <rth@redhat.com>
5340
5341         * c-parser.c (c_parser_objc_methodprotolist): Handle CPP_PRAGMA.
5342
5343 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
5344
5345         * c-typeck.c: Update copyright date.
5346
5347 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
5348
5349         * c-typeck.c (build_c_cast): Always warn when casting
5350         from a pointer to an integer of different size, even if
5351         the node was constant.
5352
5353 2006-01-05  Richard Guenther  <rguenther@suse.de>
5354
5355         PR tree-optimization/22555
5356         * tree-ssa-alias.c (create_overlap_variables_for): Do not give up,
5357         if one structure field is an array.
5358         * tree-ssa-operands.c (get_expr_operands): Continue scanning
5359         operands even if we found a subvar, but ignore VOPs in this
5360         case.
5361         * tree-ssa-loop-ivopts.c (rewrite_use): Mark new vars in stmt
5362         for renaming.
5363         * tree-ssa-loop.c (pass_iv_optimize): Schedule TODO_update_ssa.
5364
5365 2006-01-05  Richard Earnshaw  <rearnsha@arm.com>
5366
5367         PR middle-end/24998
5368         * arm/t-netbsd (LIB2FUNCS_EXTRA): Define.
5369
5370 2006-01-05  Richard Guenther  <rguenther@suse.de>
5371             Diego Novillo  <dnovillo@redhat.com>
5372
5373         * tree-pass.h (TODO_remove_unused_locals): Define.
5374         * gimple-low.c (expand_var_p, remove_useless_vars,
5375         pass_remove_useless_vars): Remove.  Update all users.
5376         * tree-ssa-live.c (mark_all_vars_used_1): Handle SSA names.
5377         (remove_unused_locals): New function.
5378         * tree-flow.h (remove_unused_locals): Declare.
5379         * passes.c (execute_todo): Call remove_unused_locals if
5380         TODO_remove_unused_locals is set.
5381         * tree-into-ssa.c (pass_build_ssa): Add TODO_remove_unused_locals.
5382         * tree-ssa-dce.c (pass_dce): Likewise.
5383         * tree-outof-ssa.c (pass_del_ssa): Likewise.
5384
5385 2006-01-05  Richard Guenther  <rguenther@suse.de>
5386
5387         * tree-flow.h (struct fieldoff): Decompose field to
5388         type, size and decl.
5389         * tree-ssa-alias.c (create_sft): Take type as parameter.
5390         (create_overlap_variables_for): Store type, size and decl
5391         in the fieldoff structure.
5392         * tree-ssa-structalias.c (fieldoff_compare): Adjust users
5393         of struct fieldoff.
5394         (push_fields_onto_fieldstack): Likewise.
5395         (create_variable_info_for): Likewise.  Use offset for the
5396         SFT name if the decl is not available.
5397
5398 2006-01-04  Paul Brook  <paul@codesourcery.com>
5399
5400         * config/m68k/m68k.c (m68k_output_mi_thunk): Use jmp, not jsr.
5401
5402 2006-01-04  Daniel Berlin  <dberlin@dberlin.org>
5403
5404         * lambda-code.c (can_put_in_inner_loop): Relax
5405         restrictions.
5406         (can_put_after_inner_loop): New function.
5407         (can_convert_to_perfect_nest): Use can_put_after_inner_loop as well.
5408         (perfect_nestify): Change to make copies and modify uses.
5409
5410 2006-01-04  Richard Henderson  <rth@redhat.com>
5411
5412         Merge from gomp branch:
5413         * c-lex.c (c_lex_with_flags) <CPP_PRAGMA>: Smuggle pragma id
5414         via integer constant.
5415         (pragma_lex): Remove.
5416         * c-pch.c (c_common_pch_pragma): Accept the name as an argument,
5417         rather than parsing it.
5418         * c-pragma.c (handle_pragma_weak, handle_pragma_redefine_extname,
5419         handle_pragma_extern_prefix): Add %< %> quotes.
5420         (registered_pragmas): New.
5421         (c_register_pragma_1): New.
5422         (c_register_pragma): Use it.
5423         (c_register_pragma_with_expansion): Likewise.
5424         (c_invoke_pragma_handler): New.
5425         (init_pragma): Use cpp_register_deferred_pragma directly for
5426         pch_preprocess.
5427         * c-pragma.h (enum pragma_kind): New.
5428         (pragma_handler): New.
5429         (c_invoke_pragma_handler): Declare.
5430         * c-common.c (c_parse_error): Pretty print CPP_PRAGMA and
5431         CPP_PRAGMA_EOL.
5432         * c-common.h (c_common_pch_pragma): Update decl.
5433         * Makefile.in (c-parser.o): Update dependencies.
5434         (GTFILES): Add c-pragma.h.
5435         * c-parser.c (struct c_token): Add pragma_kind.
5436         (struct c_parser): Add in_pragma.
5437         (c_lex_one_token): Always initialize keyword and pragma_kind.
5438         Extract data for CPP_PRAGMA.
5439         (c_parser_peek_2nd_token): Deny CPP_PRAGMA_EOL.
5440         (c_parser_consume_token): Don't allow CPP_PRAGMA unless errors.
5441         Don't allow CPP_PRAGMA_EOL if in_pragma.
5442         (c_parser_consume_pragma): New.
5443         (c_parser_skip_until_found): Stop on CPP_PRAGMA_EOL.
5444         (c_parser_skip_to_end_of_parameter): Likewise.
5445         (c_parser_skip_to_end_of_block_or_statement): Likewise.
5446         (c_parser_skip_to_pragma_eol): New.
5447         (c_parser_external_declaration): Handle CPP_PRAGMA.
5448         (c_parser_compound_statement_nostart): Likewise.
5449         (c_parser_statement_after_labels): Likewise.
5450         (c_parser_pragma): New.
5451         (pragma_lex): Likewise.
5452         (c_parser_pragma_pch_preprocess): New.
5453         (c_parser_new): Merge into ...
5454         (c_parse_file): ... here.  Call c_parser_pragma_pch_preprocess.
5455
5456 2006-01-04  Jeff Law  <law@redhat.com>
5457
5458         PR ada/24994
5459         * tree-cfg.c (bsi_replace): Remove the original statement
5460         from the EH throw statement table.
5461
5462 2006-01-04  Jakub Jelinek  <jakub@redhat.com>
5463
5464         * config/i386/pmm_malloc.h (posix_memalign): If __cplusplus,
5465         make the prototype extern "C" and add throw ().
5466
5467         PR target/25554
5468         * config/i386/i386.md (testqi_ext_3): Ensure len is positive
5469         and pos non-negative and pos + len <= 32.
5470         (testqi_ext_3_rex64): Ensure len is positive and pos non-negative,
5471         drop pos + len < HOST_BITS_PER_WIDE_INT test.
5472         (testqi_ext_3* splitter): Handle pos + len == HOST_BITS_PER_WIDE_INT.
5473
5474         PR c/25559
5475         * c-common.c (handle_vector_size_attribute): Reject zero vector size
5476         as well as sizes not multiple of component size.
5477
5478         PR debug/25562
5479         * function.c (instantiate_expr): New function.
5480         (instantiate_decls_1, instantiate_decls): If DECL_HAS_VALUE_EXPR_P,
5481         walk its DECL_VALUE_EXPR with instantiate_expr.
5482
5483         * dwarf2out.c (loc_descriptor_from_tree_1): Don't add
5484         DW_OP_deref{,_size} if address isn't going to be added.
5485
5486 2006-01-04  Ben Elliston  <bje@au.ibm.com>
5487
5488         * config/fp-bit.h: Use top-of-file comment from libgcc2.c.
5489         * config/fp-bit.c: Likewise.
5490
5491 2006-01-03  Daniel Berlin  <dberlin@dberlin.org>
5492
5493         * dominance.c: Add comment about why we use DFS numbering
5494         of dominance tree.
5495
5496 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
5497             Richard Henderson  <rth@redhat.com>
5498
5499         Merge from gomp-branch:
5500         * varasm.c (assemble_variable): Handle thread-local COMMON data.
5501         * defaults.h (ASM_OUTPUT_TLS_COMMON): Define.
5502
5503 2006-01-03  Paolo Bonzini  <bonzini@gnu.org>
5504
5505         PR rtl-optimization/25578
5506         * combine.c (combine_simplify_rtx, force_to_mode): Don't
5507         pass a parameter to simplify_shift_const if changing ASHIFTRT
5508         to LSHIFTRT.
5509
5510 2006-01-03  Adrian Straetling  <straetling@de.ibm.com>
5511
5512         * builtins.c (get_builtin_sync_mem): New function.
5513         (expand_builtin_sync_operation, expand_builtin_compare_and_swap,
5514         expand_builtin_lock_test_and_set, expand_builtin_lock_release):
5515         Call get_builtin_sync_mem to generate mem rtx.
5516
5517 2006-01-03  Richard Guenther  <rguenther@suse.de>
5518
5519         PR c/25183
5520         * stmt.c (add_case_node): Make sure to clear overflow flags
5521         from ranges.
5522
5523 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
5524
5525         Merge from gomp-branch.
5526         * config/sparc/sync.md: New file.
5527         * config/sparc/sparc.md (UNSPECV_MEMBAR, UNSPECV_CAS, UNSPECV_SWAP,
5528         UNSPECV_LDSTUB): New constants.
5529         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): New function.
5530         * config/sparc/predicates.md (memory_reg_operand): New predicate.
5531         * config/sparc/sparc-protos.h (sparc_expand_compare_and_swap_12): New
5532         prototype.
5533
5534 2006-01-03  Roger Sayle  <roger@eyesopen.com>
5535
5536         * combine.c (reg_subword_p): New predicate to test whether the
5537         destination of a set refers to a subword/piece of a register.
5538         (try_combine): Generalize the code to merge the setting of a
5539         pseudo to a constant followed by a set of a subword of that
5540         register to a constant.
5541
5542 2006-01-03  Kazu Hirata  <kazu@codesourcery.com>
5543
5544         * basic-block.h (control_flow_graph): Change the type of
5545         x_label_to_block_map to VEC(basic_block,gc) *.
5546         * tree-cfg.c (init_empty_tree_cfg, label_to_block_fn,
5547         set_bb_for_stmt): Adjust the uses of x_label_to_block_map.
5548
5549         * tree-ssa-propagate.c (cfg_blocks): Change the type to
5550         VEC(basic_block,heap) *.
5551         (cfg_blocks_add, cfg_blocks_get, ssa_prop_init,
5552         ssa_prop_fini): Adjust the uses of cfg_blocks.
5553
5554 2006-01-03  Steven Bosscher  <stevenb.gcc@gmail.com>
5555
5556         * fold-const.c (operand_equal_p): Accept a NULL operand 0 for
5557         COMPONENT_REFs.
5558         * emit-rtl.c (mem_attrs_htab_eq): Use iterative_hash_expr for
5559         hashing trees instead of a pointer hash.
5560         (mem_attrs_htab_eq): Do a deep compare instead of a pointer
5561         compare for MEM_EXPR.
5562
5563         PR rtl-optimization/25130
5564         * cse.c (exp_equiv_p): Compare MEM_ATTRS instead of MEM_ALIAS_SET
5565         when comparing MEMs for GCSE
5566
5567 2006-01-03  Ben Elliston  <bje@au.ibm.com>
5568
5569         * targhooks.h (default_decimal_float_supported_p): Declare.
5570         * targhooks.c (default_decimal_float_supported_p): Define.
5571         * target-def.h (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Redefine to
5572         `default_decimal_float_supported_p'.
5573         * doc/tm.texi (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Update.
5574
5575 2006-01-02  Adam Nemet  <anemet@caviumnetworks.com>
5576
5577         * combine.c (apply_distributive_law <SUBREG>): Check
5578         TRULY_NOOP_TRUNCATION.
5579
5580 2006-01-02  Geoffrey Keating  <geoffk@apple.com>
5581
5582         * dwarf2out.c (have_switched_text_section): Delete.
5583         (have_multiple_function_sections): New.
5584         (have_location_lists): Make 'bool'.
5585         (add_AT_loc_list): Use 'true' not '1'.
5586         (dwarf2out_switch_text_section): Set have_multiple_function_sections.
5587         (output_loc_list): Use have_multiple_function_sections.
5588         (output_ranges): Likewise.
5589         (dwarf2out_begin_function): Set have_multiple_function_sections if
5590         necessary.
5591         (dwarf2out_source_line): Don't fake separate_line_info_table_in_use.
5592         Check function_section rather than DECL_SECTION_NAME.
5593         (dwarf2out_finish): Use have_multiple_function_sections.
5594         Don't clear have_location_lists.
5595
5596 2006-01-02  Eric Botcazou  <ebotcazou@adacore.com>
5597             Jan Hubicka  <jh@suse.cz>
5598
5599         * cfglayout.c (fixup_reorder_chain): Remove kludge for the
5600         case of conditional jump jumping to the next instruction.
5601         * cfgrtl.c (force_nonfallthru_and_redirect): Accept all
5602         cases of conditional jump jumping to the next instruction.
5603
5604 2006-01-02  Jan Hubicka  <jh@suse.cz>
5605
5606         * i386.c (*_cost): Add COSTS_N_INSNS.
5607         (ix86_rtx_costs): Do not use COSTS_N_INSNS.
5608
5609 2006-01-02  Paolo Bonzini  <bonzini@gnu.org>
5610
5611         PR target/25259
5612         * Makefile.in (DECNUMINC): Include libdecnumber's build directory.
5613
5614 2006-01-02  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
5615
5616         * config/arm/arm.c (all_fpus): Fix comment typo.
5617         * config/darwin.c: Likewise.
5618         * config/frv/frv.h (FRV_STRUCT_VALUE_REGNUM): Likewise.
5619         * config/h8300/h8300.md (extendqisi2_h8300hs): Likewise.
5620         * config/m68hc11/m68hc11.c (m68hc11_reload_operands): Likewise.
5621
5622 2006-01-01  David Edelsohn  <edelsohn@gnu.org>
5623
5624         * config/rs6000/rs6000.c (rs6000_expand_compare_and_swapqhi): New.
5625         (rs6000_split_compare_and_swapqhi): New.
5626         * config/rs6000/sync.md (sync_compare_and_swap{hi,qi}): New.
5627         (sync_compare_and_swapqhi_internal): New.
5628         * config/rs6000/rs6000-protos.h: Declare.