gcc/ChangeLog

   1 2006-01-10  Richard Guenther  <rguenther@suse.de>
   2
   3         * tree-ssa-structalias.c (get_constraint_for_component_ref):
   4         Never override with anything constraint.
   5
   6 2006-01-10  Jan Beulich  <jbeulich@novell.com>
   7
   8         * config/i386/i386.c (ix86_data_alignment): Don't force alignment to
   9         256 bits when optimize_size.
  10
  11 2006-01-10  Jan Beulich  <jbeulich@novell.com>
  12
  13         * config/i386/netware.h (TARGET_SUBTARGET_DEFAULT): Include
  14         MASK_ALIGN_DOUBLE.
  15         * config/i386/nwld.h (LINK_SPEC): Add --extensions:GNU option.
  16         * config/i386/t-nwld (SHLIB_LINK): Insert spaces between expr
  17         arguments.
  18
  19 2006-01-10  Ben Elliston  <bje@au.ibm.com>
  20
  21         * config/rs6000/predicates.md (easy_fp_constant): Discount decimal
  22         float modes.
  23         * config/rs6000/rs6000.c (rs6000_scalar_mode_supported_p): New.
  24         (TARGET_SCALAR_MODE_SUPPORTED_P): Define.
  25         (USE_FP_FOR_ARG): Reject decimal float modes.
  26         (function_arg_advance): Likewise.
  27         (output_toc): Handle emitting TDmode, DDmode and SDmode constants.
  28         (rs6000_handle_altivec_attribute): Do not permit decimal floating
  29         point types in AltiVec vectors.
  30         (rs6000_function_value): Use GP_ARG_RETURN for decimal floats.
  31         (rs6000_libcall_value): Likewise.
  32
  33 2006-01-09  Bob Wilson  <bob.wilson@acm.org>
  34
  35         * config/xtensa/ieee754-df.S: New file.
  36         * config/xtensa/ieee754-sf.S: New file.
  37         * config/xtensa/t-xtensa (LIB2FUNCS_EXTRA): Remove fp-bit.c & dp-bit.c.
  38         (LIB1ASMFUNCS): Add SFmode and DFmode floating-point functions.
  39         * config/xtensa/lib1funcs.asm: Include ieee754-df.S and ieee754-sf.S.
  40
  41 2006-01-09  Kazu Hirata  <kazu@codesourcery.com>
  42
  43         * config/sh/predicates.md (binary_float_operator,
  44         binary_logical_operator, commutative_float_operator,
  45         equality_comparison_operator, greater_comparison_operator,
  46         less_comparison_operator, logical_operator,
  47         noncommutative_float_operator, shift_operator,
  48         symbol_ref_operand, unary_float_operator): Remove redundant
  49         conditionals.
  50
  51 2006-01-09  Jeff Law  <law@redhat.com>
  52
  53         * tree-ssa-dom.c (simplify_cond_and_lookup_avail_expr): Remove
  54         code to propagate the RHS of a cast into COND_EXPR_COND.  Remove
  55         now unused arguments.  Callers updated.
  56         (eliminate_redundant_computations): Remove now unused arguments,
  57         callers updated.
  58         (local_fold): Remove, no longer used.
  59         (find_equivalent_equality_comparison): Removed from tree-ssa-dom.c
  60         and moved to...
  61         * tree-ssa-forwprop.c (find_equivalent_equality_comparison): Here.
  62         (simplify_cond): New function.
  63         (forward_propagate_into_cond): Call simplify_cond.
  64
  65 2006-01-09  Alexandre Oliva  <aoliva@redhat.com>
  66
  67         * config/i386/sse.md (*vec_extractv2di_1_sse2): New.
  68         (*vec_extractv2di_1_sse): New.
  69
  70 2006-01-09  Ben Elliston  <bje@au.ibm.com>
  71
  72         * config/rs6000/rs6000.h (GO_IF_LEGITIMATE_ADDRESS): Typo fix.
  73
  74 2006-01-08  Richard Guenther  <rguenther@suse.de>
  75
  76         * tree-ssa-structalias.c (get_constraint_for): Remove
  77         anyoffset argument.
  78         (get_constraint_for_component_ref): Likewise.
  79         (do_deref): Likewise.
  80         (get_constraint_for): Likewise.
  81         (do_structure_copy): Likewise.
  82         (handle_ptr_arith): Likewise.
  83         (find_func_aliases): Likewise.  Remove unused need_anyoffset
  84         variable.
  85
  86 2006-01-08  J"orn Rennecke  <joern.rennecke@st.com>
  87             Kaz Kojima  <kkojima@gcc.gnu.org>
  88
  89         * config/sh/sh.h (CONST_OK_FOR_K16): Define.
  90         (CONST_OK_FOR_K): Add CONST_OK_FOR_K16 case.
  91         (EXTRA_CONSTRAINT_C16): Remove.
  92         (EXTRA_CONSTRAINT_Css, EXTRA_CONSTRAINT_Csu): Define.
  93         (EXTRA_CONSTRAINT_C): Remove EXTRA_CONSTRAINT_C16 case and add
  94         EXTRA_CONSTRAINT_Css and EXTRA_CONSTRAINT_Csu cases.
  95         * config/sh/sh.c (print_operand): Handle unsigned 16-bit symbolic
  96         constants of SHmedia.  Handle nested constant expressions of
  97         SHmedia correctly.
  98         (andcosts): Fix the costs for SHmedia constants.
  99         (sh_rtx_costs): Take account of outer_code for SHmedia constants.
 100         * config/sh/sh.md (*movsi_media): Use Css constraint instead of C16.
 101         (*movsi_media_nofpu, *movqi_media, *movhi_media): Likewise.
 102         (*movdi_media, *movdi_media_nofpu, movv8qi_i, movv2hi_i): Likewise.
 103         (movv4hi_i, movv2si_i): Likewise.
 104         (movsi_const): Adjust the second operand of ior so to match with
 105         the Csu constraint.
 106         (movdi_const, movdi_const_32bit): Likewise.
 107         (movdi_const_16bit+1): Don't sign-extend LOW.
 108         (movdi_const_16bit+2): Likewise.  Remove the zero_extend and truncate
 109         step.
 110         (*double_shori): Fix the split condition.  Use GEN_INT instead
 111         of get_int_mode calls.  Mask lower 16-bit of the argument of
 112         the last GEN_INT.
 113         (sym2GOTPLT): Remove.
 114         (symGOTPLT2reg): Replace gen_sym2GOTPLT with gen_rtx_CONST and
 115         gen_rtx_UNSPEC.
 116         * config/sh/predicates.md (arith_operand): Use EXTRA_CONSTRAINT_Css
 117         instead of EXTRA_CONSTRAINT_C16.
 118
 119 2006-01-07  Ian Lance Taylor  <ian@airs.com>
 120             David Edelsohn  <edelsohn@gnu.org>
 121
 122         PR rtl-optimization/25662
 123         * optabs.c (simplify_expand_binop): Use simplify_binary_operation
 124         for constant operands instead of simplify_gen_binary.
 125         * simplify-rtx.c (simplify_gen_binary): Swap commutative operands
 126         after trying simplify_binary_operation
 127
 128 2006-01-06  Daniel Berlin  <dberlin@dberlin.org>
 129
 130         * tree.c (iterative_hash_expr): Hash decls based on UID.
 131
 132 2006-01-06  Eric Christopher  <echristo@apple.com>
 133
 134         * doc/tm.texi (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): Document.
 135         (TARGET_UNWIND_EMIT): Fix spelling.
 136         * target.h (gcc_target): Add except_table_label.
 137         * except.c (output_function_exception_table): Use.
 138         * varasm.c (default_emit_except_table_label): New.
 139         * target-def.h (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): New default
 140         define.
 141         (asm_out): Add here.
 142         * output.h (default_emit_except_table_label): Prototype.
 143         * config/darwin-protos.h (darwin_emit_except_table_label): Ditto.
 144         * config/darwin.c (darwin_emit_except_table_label): Define.
 145         * config/darwin.h (TARGET_ASM_EMIT_EXCEPT_TABLE): Ditto.
 146
 147 2006-01-06  Zdenek Dvorak <dvorakz@suse.cz>
 148
 149         PR tree-optimization/18527
 150         * tree-ssa-loop-niter.c (number_of_iterations_cond,
 151         number_of_iterations_special, number_of_iterations_exit):
 152         Move base and step of an iv to a single structure.  Add
 153         no_overflow flag, and use it in # of iterations analysis.
 154         * tree-scalar-evolution.c (analyze_scalar_evolution_in_loop): Add
 155         folded_casts argument.
 156         (simple_iv): Pass base and step in a structure.  Set no_overflow
 157         flag.
 158         (scev_const_prop): Add argument to analyze_scalar_evolution_in_loop.
 159         Evaluate expensiveness of computing # of iterations instead of
 160         the final expression.
 161         * tree-scalar-evolution.h (affine_iv): New structure.
 162         (simple_iv): Declaration changed.
 163         * tree-chrec.c (chrec_apply): Handle chrecs containing symbols.
 164         * tree-ssa-loop-ivopts.c (determine_biv_step, find_givs_in_stmt_scev,
 165         find_givs_in_stmt): Changed due to simple_iv change.
 166
 167 2006-01-06  Jeff Law  <law@redhat.com>
 168
 169         PR ada/24994
 170         * tree-cfg.c (bsi_replace): Rename final argument from
 171         PRESERVE_EH_INFO to UPDATE_EH_INFO.  Fix typo in last
 172         change (stmt -> orig_stmt).
 173         * tree-eh.c (verify_eh_throw_stmt_node): New function.
 174         (bsi_remove): Add new argument.  Remove EH information
 175         if requested.
 176         (verify_eh_throw_table_statements): New function.
 177         (bsi_remove): Add new argument REMOVE_EH_INFO.  All callers
 178         updated.
 179         * tree-optimize.c (execute_free_cfg_annotations): Verify
 180         the EH throw statement table after removing annotations.
 181         * except.h (verify_eh_throw_table_statements): Prototype.
 182         * tree-flow.h (bsi_remove): Update prototype.
 183         * tree-vrp.c (remove_range_assertions): Add new argument to
 184         bsi_remove call.
 185         * tree-ssa-loop-im.c (move_computations_stmt): Likewise.
 186         * tree-complex.c (expand_complex_div_wide): Likewise.
 187         * tree-ssa-threadupdate.c (remove_ctrl_stmt_and_useless_edges): Likewise
 188         * tree-tailcall.c (eliminate_tailcall): Likewise.
 189         * tree-ssa-dse.c (dse_optimize_stmt): Likewise.
 190         * tree-ssa-loop-ivopts.c (remove_statement): Likewise.
 191         * tree-nrv.c (tree_nrv): Likewise.
 192         * tree-vectorizer.c (slpeel_make_loop_iterate_ntimes): Likewise.
 193         * tree-if-conv.c (tree_if_convert_cond_expr): Likewise.
 194         (combine_blocks): Likewise.
 195         * tree-ssa-phiopt.c (replace_phi_edge_with_variable): Likewise.
 196         * tree-cfgcleanup.c (cleanup_ctrl_expr_graph): Likewise.
 197         (cleanup_control_flow): Likewise.
 198         (remove_forwarder_block): Likewise.
 199         * tree-ssa-pre.c (remove_dead_inserted_code): Likewise.
 200         * tree-sra.c (sra_replace): Likewise.
 201         * tree-ssa-forwprop.c (forward_propagate_into_cond): Likewise.
 202         (forward_propagate_single_use_vars): Likewise.
 203         * tree-ssa-dce.c (remove_dead_stmt): Likewise.
 204         * tree-inline.c (expand_call_inline): Likewise.
 205         * tree-vect-transform.c (vect_transform_loop): Likewise.
 206         * tree-outof-ssa.c (rewrite_trees): Likewise.
 207         * tree-cfg.c (make_goto_expr_edges): Likewise.
 208         (cleanup_dead_labels): Likewise.
 209         (tree_merge_blocks, remove_bb, disband_implicit_edges): Likewise.
 210         (bsi_move_before, bsi_move_after): Likewise.
 211         (bsi_move_to_bb_end, try_redirect_by_replacing_jump): Likewise
 212         (tree_redirect_edge_and_branch, tree_split_block): Likewise.
 213
 214 2006-01-06  Andrew Pinski  <pinskia@physics.uc.edu>
 215
 216         PR tree-opt/25528
 217         * tree-ssa-alias.c (find_used_portions): Handle REALPART_EXPR
 218         and IMAGPART_EXPR.
 219         * tree-flow-inline.h (var_can_have_subvars): Handle complex types
 220         on non gimple variables.  Also add checks at the top for decls and
 221         mtags.
 222         * tree-ssa-structalias.c (push_fields_onto_fieldstack): Handle
 223         complex types.
 224         * tree-ssa-operands.c (parse_ssa_operands): Handle REALPART_EXPR
 225         and IMAGPART_EXPR for creating MUST_DEFs.
 226         (get_expr_operands): Handle SSA_NAME, STRUCT_FIELD_TAG, TYPE_MEMORY_TAG,
 227         and NAME_MEMORY_TAG separately from the DECLs.
 228
 229 2006-01-06  Richard Guenther  <rguenther@suse.de>
 230
 231         * tree-dfa.c (mark_new_vars_to_rename): Create stmt
 232         annotation, if necessary.
 233         * tree-ssa-pre.c (create_expression_by_pieces): Remove
 234         redundant calls to update_stmt.
 235         * tree-ssa-forwprop.c (tidy_after_forward_propagate_addr):
 236         Likewise.
 237
 238 2006-01-05  Richard Henderson  <rth@redhat.com>
 239
 240         * c-parser.c (c_parser_objc_methodprotolist): Handle CPP_PRAGMA.
 241
 242 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
 243
 244         * c-typeck.c: Update copyright date.
 245
 246 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
 247
 248         * c-typeck.c (build_c_cast): Always warn when casting
 249         from a pointer to an integer of different size, even if
 250         the node was constant.
 251
 252 2006-01-05  Richard Guenther  <rguenther@suse.de>
 253
 254         PR tree-optimization/22555
 255         * tree-ssa-alias.c (create_overlap_variables_for): Do not give up,
 256         if one structure field is an array.
 257         * tree-ssa-operands.c (get_expr_operands): Continue scanning
 258         operands even if we found a subvar, but ignore VOPs in this
 259         case.
 260         * tree-ssa-loop-ivopts.c (rewrite_use): Mark new vars in stmt
 261         for renaming.
 262         * tree-ssa-loop.c (pass_iv_optimize): Schedule TODO_update_ssa.
 263
 264 2006-01-05  Richard Earnshaw  <rearnsha@arm.com>
 265
 266         PR middle-end/24998
 267         * arm/t-netbsd (LIB2FUNCS_EXTRA): Define.
 268
 269 2006-01-05  Richard Guenther  <rguenther@suse.de>
 270             Diego Novillo  <dnovillo@redhat.com>
 271
 272         * tree-pass.h (TODO_remove_unused_locals): Define.
 273         * gimple-low.c (expand_var_p, remove_useless_vars,
 274         pass_remove_useless_vars): Remove.  Update all users.
 275         * tree-ssa-live.c (mark_all_vars_used_1): Handle SSA names.
 276         (remove_unused_locals): New function.
 277         * tree-flow.h (remove_unused_locals): Declare.
 278         * passes.c (execute_todo): Call remove_unused_locals if
 279         TODO_remove_unused_locals is set.
 280         * tree-into-ssa.c (pass_build_ssa): Add TODO_remove_unused_locals.
 281         * tree-ssa-dce.c (pass_dce): Likewise.
 282         * tree-outof-ssa.c (pass_del_ssa): Likewise.
 283
 284 2006-01-05  Richard Guenther  <rguenther@suse.de>
 285
 286         * tree-flow.h (struct fieldoff): Decompose field to
 287         type, size and decl.
 288         * tree-ssa-alias.c (create_sft): Take type as parameter.
 289         (create_overlap_variables_for): Store type, size and decl
 290         in the fieldoff structure.
 291         * tree-ssa-structalias.c (fieldoff_compare): Adjust users
 292         of struct fieldoff.
 293         (push_fields_onto_fieldstack): Likewise.
 294         (create_variable_info_for): Likewise.  Use offset for the
 295         SFT name if the decl is not available.
 296
 297 2006-01-04  Paul Brook  <paul@codesourcery.com>
 298
 299         * config/m68k/m68k.c (m68k_output_mi_thunk): Use jmp, not jsr.
 300
 301 2006-01-04  Daniel Berlin  <dberlin@dberlin.org>
 302
 303         * lambda-code.c (can_put_in_inner_loop): Relax
 304         restrictions.
 305         (can_put_after_inner_loop): New function.
 306         (can_convert_to_perfect_nest): Use can_put_after_inner_loop as well.
 307         (perfect_nestify): Change to make copies and modify uses.
 308
 309 2006-01-04  Richard Henderson  <rth@redhat.com>
 310
 311         Merge from gomp branch:
 312         * c-lex.c (c_lex_with_flags) <CPP_PRAGMA>: Smuggle pragma id
 313         via integer constant.
 314         (pragma_lex): Remove.
 315         * c-pch.c (c_common_pch_pragma): Accept the name as an argument,
 316         rather than parsing it.
 317         * c-pragma.c (handle_pragma_weak, handle_pragma_redefine_extname,
 318         handle_pragma_extern_prefix): Add %< %> quotes.
 319         (registered_pragmas): New.
 320         (c_register_pragma_1): New.
 321         (c_register_pragma): Use it.
 322         (c_register_pragma_with_expansion): Likewise.
 323         (c_invoke_pragma_handler): New.
 324         (init_pragma): Use cpp_register_deferred_pragma directly for
 325         pch_preprocess.
 326         * c-pragma.h (enum pragma_kind): New.
 327         (pragma_handler): New.
 328         (c_invoke_pragma_handler): Declare.
 329         * c-common.c (c_parse_error): Pretty print CPP_PRAGMA and
 330         CPP_PRAGMA_EOL.
 331         * c-common.h (c_common_pch_pragma): Update decl.
 332         * Makefile.in (c-parser.o): Update dependencies.
 333         (GTFILES): Add c-pragma.h.
 334         * c-parser.c (struct c_token): Add pragma_kind.
 335         (struct c_parser): Add in_pragma.
 336         (c_lex_one_token): Always initialize keyword and pragma_kind.
 337         Extract data for CPP_PRAGMA.
 338         (c_parser_peek_2nd_token): Deny CPP_PRAGMA_EOL.
 339         (c_parser_consume_token): Don't allow CPP_PRAGMA unless errors.
 340         Don't allow CPP_PRAGMA_EOL if in_pragma.
 341         (c_parser_consume_pragma): New.
 342         (c_parser_skip_until_found): Stop on CPP_PRAGMA_EOL.
 343         (c_parser_skip_to_end_of_parameter): Likewise.
 344         (c_parser_skip_to_end_of_block_or_statement): Likewise.
 345         (c_parser_skip_to_pragma_eol): New.
 346         (c_parser_external_declaration): Handle CPP_PRAGMA.
 347         (c_parser_compound_statement_nostart): Likewise.
 348         (c_parser_statement_after_labels): Likewise.
 349         (c_parser_pragma): New.
 350         (pragma_lex): Likewise.
 351         (c_parser_pragma_pch_preprocess): New.
 352         (c_parser_new): Merge into ...
 353         (c_parse_file): ... here.  Call c_parser_pragma_pch_preprocess.
 354
 355 2006-01-04  Jeff Law  <law@redhat.com>
 356
 357         PR ada/24994
 358         * tree-cfg.c (bsi_replace): Remove the original statement
 359         from the EH throw statement table.
 360
 361 2006-01-04  Jakub Jelinek  <jakub@redhat.com>
 362
 363         * config/i386/pmm_malloc.h (posix_memalign): If __cplusplus,
 364         make the prototype extern "C" and add throw ().
 365
 366         PR target/25554
 367         * config/i386/i386.md (testqi_ext_3): Ensure len is positive
 368         and pos non-negative and pos + len <= 32.
 369         (testqi_ext_3_rex64): Ensure len is positive and pos non-negative,
 370         drop pos + len < HOST_BITS_PER_WIDE_INT test.
 371         (testqi_ext_3* splitter): Handle pos + len == HOST_BITS_PER_WIDE_INT.
 372
 373         PR c/25559
 374         * c-common.c (handle_vector_size_attribute): Reject zero vector size
 375         as well as sizes not multiple of component size.
 376
 377         PR debug/25562
 378         * function.c (instantiate_expr): New function.
 379         (instantiate_decls_1, instantiate_decls): If DECL_HAS_VALUE_EXPR_P,
 380         walk its DECL_VALUE_EXPR with instantiate_expr.
 381
 382         * dwarf2out.c (loc_descriptor_from_tree_1): Don't add
 383         DW_OP_deref{,_size} if address isn't going to be added.
 384
 385 2006-01-04  Ben Elliston  <bje@au.ibm.com>
 386
 387         * config/fp-bit.h: Use top-of-file comment from libgcc2.c.
 388         * config/fp-bit.c: Likewise.
 389
 390 2006-01-03  Daniel Berlin  <dberlin@dberlin.org>
 391
 392         * dominance.c: Add comment about why we use DFS numbering
 393         of dominance tree.
 394
 395 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
 396             Richard Henderson  <rth@redhat.com>
 397
 398         Merge from gomp-branch:
 399         * varasm.c (assemble_variable): Handle thread-local COMMON data.
 400         * defaults.h (ASM_OUTPUT_TLS_COMMON): Define.
 401
 402 2006-01-03  Paolo Bonzini  <bonzini@gnu.org>
 403
 404         PR rtl-optimization/25578
 405         * combine.c (combine_simplify_rtx, force_to_mode): Don't
 406         pass a parameter to simplify_shift_const if changing ASHIFTRT
 407         to LSHIFTRT.
 408
 409 2006-01-03  Adrian Straetling  <straetling@de.ibm.com>
 410
 411         * gcc/builtins.c (get_builtin_sync_mem): New function.
 412         (expand_builtin_sync_operation, expand_builtin_compare_and_swap,
 413         expand_builtin_lock_test_and_set, expand_builtin_lock_release):
 414         Call get_builtin_sync_mem to generate mem rtx.
 415
 416 2006-01-03  Richard Guenther  <rguenther@suse.de>
 417
 418         PR c/25183
 419         * stmt.c (add_case_node): Make sure to clear overflow flags
 420         from ranges.
 421
 422 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
 423
 424         Merge from gomp-branch.
 425         * config/sparc/sync.md: New file.
 426         * config/sparc/sparc.md (UNSPECV_MEMBAR, UNSPECV_CAS, UNSPECV_SWAP,
 427         UNSPECV_LDSTUB): New constants.
 428         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): New function.
 429         * config/sparc/predicates.md (memory_reg_operand): New predicate.
 430         * config/sparc/sparc-protos.h (sparc_expand_compare_and_swap_12): New
 431         prototype.
 432
 433 2006-01-03  Roger Sayle  <roger@eyesopen.com>
 434
 435         * combine.c (reg_subword_p): New predicate to test whether the
 436         destination of a set refers to a subword/piece of a register.
 437         (try_combine): Generalize the code to merge the setting of a
 438         pseudo to a constant followed by a set of a subword of that
 439         register to a constant.
 440
 441 2006-01-03  Kazu Hirata  <kazu@codesourcery.com>
 442
 443         * basic-block.h (control_flow_graph): Change the type of
 444         x_label_to_block_map to VEC(basic_block,gc) *.
 445         * tree-cfg.c (init_empty_tree_cfg, label_to_block_fn,
 446         set_bb_for_stmt): Adjust the uses of x_label_to_block_map.
 447
 448         * tree-ssa-propagate.c (cfg_blocks): Change the type to
 449         VEC(basic_block,heap) *.
 450         (cfg_blocks_add, cfg_blocks_get, ssa_prop_init,
 451         ssa_prop_fini): Adjust the uses of cfg_blocks.
 452
 453 2006-01-03  Steven Bosscher  <stevenb.gcc@gmail.com>
 454
 455         * fold-const.c (operand_equal_p): Accept a NULL operand 0 for
 456         COMPONENT_REFs.
 457         * emit-rtl.c (mem_attrs_htab_eq): Use iterative_hash_expr for
 458         hashing trees instead of a pointer hash.
 459         (mem_attrs_htab_eq): Do a deep compare instead of a pointer
 460         compare for MEM_EXPR.
 461
 462         PR rtl-optimization/25130
 463         * cse.c (exp_equiv_p): Compare MEM_ATTRS instead of MEM_ALIAS_SET
 464         when comparing MEMs for GCSE
 465
 466 2006-01-03  Ben Elliston  <bje@au.ibm.com>
 467
 468         * targhooks.h (default_decimal_float_supported_p): Declare.
 469         * targhooks.c (default_decimal_float_supported_p): Define.
 470         * target-def.h (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Redefine to
 471         `default_decimal_float_supported_p'.
 472         * doc/tm.texi (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Update.
 473
 474 2006-01-02  Adam Nemet  <anemet@caviumnetworks.com>
 475
 476         * combine.c (apply_distributive_law <SUBREG>): Check
 477         TRULY_NOOP_TRUNCATION.
 478
 479 2006-01-02  Geoffrey Keating  <geoffk@apple.com>
 480
 481         * dwarf2out.c (have_switched_text_section): Delete.
 482         (have_multiple_function_sections): New.
 483         (have_location_lists): Make 'bool'.
 484         (add_AT_loc_list): Use 'true' not '1'.
 485         (dwarf2out_switch_text_section): Set have_multiple_function_sections.
 486         (output_loc_list): Use have_multiple_function_sections.
 487         (output_ranges): Likewise.
 488         (dwarf2out_begin_function): Set have_multiple_function_sections if
 489         necessary.
 490         (dwarf2out_source_line): Don't fake separate_line_info_table_in_use.
 491         Check function_section rather than DECL_SECTION_NAME.
 492         (dwarf2out_finish): Use have_multiple_function_sections.
 493         Don't clear have_location_lists.
 494
 495 2006-01-02  Eric Botcazou  <ebotcazou@adacore.com>
 496             Jan Hubicka  <jh@suse.cz>
 497
 498         * cfglayout.c (fixup_reorder_chain): Remove kludge for the
 499         case of conditional jump jumping to the next instruction.
 500         * cfgrtl.c (force_nonfallthru_and_redirect): Accept all
 501         cases of conditional jump jumping to the next instruction.
 502
 503 2006-01-02  Jan Hubicka  <jh@suse.cz>
 504
 505         * i386.c (*_cost): Add COSTS_N_INSNS.
 506         (ix86_rtx_costs): Do not use COSTS_N_INSNS.
 507
 508 2006-01-02  Paolo Bonzini  <bonzini@gnu.org>
 509
 510         PR target/25259
 511         * Makefile.in (DECNUMINC): Include libdecnumber's build directory.
 512
 513 2006-01-02  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
 514
 515         * config/arm/arm.c (all_fpus): Fix comment typo.
 516         * config/darwin.c: Likewise.
 517         * config/frv/frv.h (FRV_STRUCT_VALUE_REGNUM): Likewise.
 518         * config/h8300/h8300.md (extendqisi2_h8300hs): Likewise.
 519         * config/m68hc11/m68hc11.c (m68hc11_reload_operands): Likewise.
 520
 521 2006-01-01  David Edelsohn  <edelsohn@gnu.org>
 522
 523         * config/rs6000/rs6000.c (rs6000_expand_compare_and_swapqhi): New.
 524         (rs6000_split_compare_and_swapqhi): New.
 525         * config/rs6000/sync.md (sync_compare_and_swap{hi,qi}): New.
 526         (sync_compare_and_swapqhi_internal): New.
 527         * config/rs6000/rs6000-protos.h: Declare.