gcc/ChangeLog

   1 2006-01-11  Zdenek Dvorak <dvorakz@suse.cz>
   2
   3         * tree-ssa-operands.c (get_expr_operands): Record addressable
   4         variables directly.  Do not call add_stmt_operands for CONST_DECLs
   5         and ARRAY_DECLs.
   6         (get_indirect_ref_operands): Remove handling of *(&a + offset) case.
   7         (add_stmt_operands): Handle only objects satisfying SSA_VAR_P.
   8
   9 2006-01-11  Ben Elliston  <bje@au.ibm.com>
  10
  11         * config/i386/i386.c (ix86_return_in_memory): Fix comment: this
  12         function returns true in the positive case.
  13
  14 2006-01-10  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
  15
  16         PR target/20754
  17         * pa.md: Create separate 32 and 64-bit move patterns for SI, DI, SF
  18         and DF modes.  Add alternatives to copy between general and floating
  19         point registers to the 32-bit patterns.
  20         * pa-64.h (SECONDARY_MEMORY_NEEDED_RTX): Delete undefine.
  21         * pa.h (SECONDARY_MEMORY_NEEDED_RTX): Delete define.
  22         (SECONDARY_MEMORY_NEEDED): Secondary memory is only needed when
  23         generating 64-bit code.
  24         * pa.c (output_move_double): Handle copies between general and
  25         floating registers.
  26
  27 2006-01-10  Stuart Hastings  <stuart@apple.com>
  28
  29         * gcc/config/i386/i386.md (set_got): Update.
  30         (set_got_labelled): New.  (UNSPEC_LD_MPIC): New.
  31         (builtin_setjmp_receiver): Mach-O support.
  32         * gcc/config/i386/darwin.h (TARGET_ASM_FILE_END) Define.
  33         (GOT_SYMBOL_NAME): Define.
  34         (FORCE_PREFERRED_STACK_BOUNDARY_IN_MAIN): New.
  35         (TARGET_DEEP_BRANCH_PREDICTION): Remove.
  36         * gcc/config/i386/i386.c (override_options): Revise for Darwin.
  37         (USE_HIDDEN_LINKONCE): Enable for Mach-O.  (ix86_file_end): Mach-O
  38         support.  (darwin_x86_file_end): New.  (output_set_got): Add label
  39         parameter, revise for Mach-O.  (x86_output_mi_thunk): Likewise.
  40         * gcc/config/i386/i386-protos.h (output_set_got): Likewise.
  41         * gcc/config/darwin.c (machopic_legitimize_pic_address): Update
  42         regs_ever_live[].
  43
  44 2006-01-10  Kaz Kojima  <kkojima@gcc.gnu.org>
  45
  46         * config/sh/sh.h (SH5_WOULD_BE_PARTIAL_NREGS): Use GET_MODE_SIZE
  47         when MODE isn't BLKmode.
  48
  49 2006-01-10  Eric Botcazou  <ebotcazou@libertysurf.fr>
  50
  51         PR rtl-optimization/25367
  52         * config/sparc/sparc.h (HARD_REGNO_RENAME_OK): New macro.
  53
  54 2006-01-10  Hans-Peter Nilsson  <hp@axis.com>
  55
  56         PR target/25718
  57         * config/cris/cris.md ("uminsi3"): Don't use 8- or 16-bit sizes
  58         for a negative bound.
  59
  60 2006-01-10  Richard Guenther  <rguenther@suse.de>
  61
  62         * tree-ssa-structalias.c (get_constraint_for_component_ref):
  63         Never override with anything constraint.
  64
  65 2006-01-10  Jan Beulich  <jbeulich@novell.com>
  66
  67         * config/i386/i386.c (ix86_data_alignment): Don't force alignment to
  68         256 bits when optimize_size.
  69
  70 2006-01-10  Jan Beulich  <jbeulich@novell.com>
  71
  72         * config/i386/netware.h (TARGET_SUBTARGET_DEFAULT): Include
  73         MASK_ALIGN_DOUBLE.
  74         * config/i386/nwld.h (LINK_SPEC): Add --extensions:GNU option.
  75         * config/i386/t-nwld (SHLIB_LINK): Insert spaces between expr
  76         arguments.
  77
  78 2006-01-10  Ben Elliston  <bje@au.ibm.com>
  79
  80         * config/rs6000/predicates.md (easy_fp_constant): Discount decimal
  81         float modes.
  82         * config/rs6000/rs6000.c (rs6000_scalar_mode_supported_p): New.
  83         (TARGET_SCALAR_MODE_SUPPORTED_P): Define.
  84         (USE_FP_FOR_ARG): Reject decimal float modes.
  85         (function_arg_advance): Likewise.
  86         (output_toc): Handle emitting TDmode, DDmode and SDmode constants.
  87         (rs6000_handle_altivec_attribute): Do not permit decimal floating
  88         point types in AltiVec vectors.
  89         (rs6000_function_value): Use GP_ARG_RETURN for decimal floats.
  90         (rs6000_libcall_value): Likewise.
  91
  92 2006-01-09  Bob Wilson  <bob.wilson@acm.org>
  93
  94         * config/xtensa/ieee754-df.S: New file.
  95         * config/xtensa/ieee754-sf.S: New file.
  96         * config/xtensa/t-xtensa (LIB2FUNCS_EXTRA): Remove fp-bit.c & dp-bit.c.
  97         (LIB1ASMFUNCS): Add SFmode and DFmode floating-point functions.
  98         * config/xtensa/lib1funcs.asm: Include ieee754-df.S and ieee754-sf.S.
  99
 100 2006-01-09  Kazu Hirata  <kazu@codesourcery.com>
 101
 102         * config/sh/predicates.md (binary_float_operator,
 103         binary_logical_operator, commutative_float_operator,
 104         equality_comparison_operator, greater_comparison_operator,
 105         less_comparison_operator, logical_operator,
 106         noncommutative_float_operator, shift_operator,
 107         symbol_ref_operand, unary_float_operator): Remove redundant
 108         conditionals.
 109
 110 2006-01-09  Jeff Law  <law@redhat.com>
 111
 112         * tree-ssa-dom.c (simplify_cond_and_lookup_avail_expr): Remove
 113         code to propagate the RHS of a cast into COND_EXPR_COND.  Remove
 114         now unused arguments.  Callers updated.
 115         (eliminate_redundant_computations): Remove now unused arguments,
 116         callers updated.
 117         (local_fold): Remove, no longer used.
 118         (find_equivalent_equality_comparison): Removed from tree-ssa-dom.c
 119         and moved to...
 120         * tree-ssa-forwprop.c (find_equivalent_equality_comparison): Here.
 121         (simplify_cond): New function.
 122         (forward_propagate_into_cond): Call simplify_cond.
 123
 124 2006-01-09  Alexandre Oliva  <aoliva@redhat.com>
 125
 126         * config/i386/sse.md (*vec_extractv2di_1_sse2): New.
 127         (*vec_extractv2di_1_sse): New.
 128
 129 2006-01-09  Ben Elliston  <bje@au.ibm.com>
 130
 131         * config/rs6000/rs6000.h (GO_IF_LEGITIMATE_ADDRESS): Typo fix.
 132
 133 2006-01-08  Richard Guenther  <rguenther@suse.de>
 134
 135         * tree-ssa-structalias.c (get_constraint_for): Remove
 136         anyoffset argument.
 137         (get_constraint_for_component_ref): Likewise.
 138         (do_deref): Likewise.
 139         (get_constraint_for): Likewise.
 140         (do_structure_copy): Likewise.
 141         (handle_ptr_arith): Likewise.
 142         (find_func_aliases): Likewise.  Remove unused need_anyoffset
 143         variable.
 144
 145 2006-01-08  J"orn Rennecke  <joern.rennecke@st.com>
 146             Kaz Kojima  <kkojima@gcc.gnu.org>
 147
 148         * config/sh/sh.h (CONST_OK_FOR_K16): Define.
 149         (CONST_OK_FOR_K): Add CONST_OK_FOR_K16 case.
 150         (EXTRA_CONSTRAINT_C16): Remove.
 151         (EXTRA_CONSTRAINT_Css, EXTRA_CONSTRAINT_Csu): Define.
 152         (EXTRA_CONSTRAINT_C): Remove EXTRA_CONSTRAINT_C16 case and add
 153         EXTRA_CONSTRAINT_Css and EXTRA_CONSTRAINT_Csu cases.
 154         * config/sh/sh.c (print_operand): Handle unsigned 16-bit symbolic
 155         constants of SHmedia.  Handle nested constant expressions of
 156         SHmedia correctly.
 157         (andcosts): Fix the costs for SHmedia constants.
 158         (sh_rtx_costs): Take account of outer_code for SHmedia constants.
 159         * config/sh/sh.md (*movsi_media): Use Css constraint instead of C16.
 160         (*movsi_media_nofpu, *movqi_media, *movhi_media): Likewise.
 161         (*movdi_media, *movdi_media_nofpu, movv8qi_i, movv2hi_i): Likewise.
 162         (movv4hi_i, movv2si_i): Likewise.
 163         (movsi_const): Adjust the second operand of ior so to match with
 164         the Csu constraint.
 165         (movdi_const, movdi_const_32bit): Likewise.
 166         (movdi_const_16bit+1): Don't sign-extend LOW.
 167         (movdi_const_16bit+2): Likewise.  Remove the zero_extend and truncate
 168         step.
 169         (*double_shori): Fix the split condition.  Use GEN_INT instead
 170         of get_int_mode calls.  Mask lower 16-bit of the argument of
 171         the last GEN_INT.
 172         (sym2GOTPLT): Remove.
 173         (symGOTPLT2reg): Replace gen_sym2GOTPLT with gen_rtx_CONST and
 174         gen_rtx_UNSPEC.
 175         * config/sh/predicates.md (arith_operand): Use EXTRA_CONSTRAINT_Css
 176         instead of EXTRA_CONSTRAINT_C16.
 177
 178 2006-01-07  Ian Lance Taylor  <ian@airs.com>
 179             David Edelsohn  <edelsohn@gnu.org>
 180
 181         PR rtl-optimization/25662
 182         * optabs.c (simplify_expand_binop): Use simplify_binary_operation
 183         for constant operands instead of simplify_gen_binary.
 184         * simplify-rtx.c (simplify_gen_binary): Swap commutative operands
 185         after trying simplify_binary_operation
 186
 187 2006-01-06  Daniel Berlin  <dberlin@dberlin.org>
 188
 189         * tree.c (iterative_hash_expr): Hash decls based on UID.
 190
 191 2006-01-06  Eric Christopher  <echristo@apple.com>
 192
 193         * doc/tm.texi (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): Document.
 194         (TARGET_UNWIND_EMIT): Fix spelling.
 195         * target.h (gcc_target): Add except_table_label.
 196         * except.c (output_function_exception_table): Use.
 197         * varasm.c (default_emit_except_table_label): New.
 198         * target-def.h (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): New default
 199         define.
 200         (asm_out): Add here.
 201         * output.h (default_emit_except_table_label): Prototype.
 202         * config/darwin-protos.h (darwin_emit_except_table_label): Ditto.
 203         * config/darwin.c (darwin_emit_except_table_label): Define.
 204         * config/darwin.h (TARGET_ASM_EMIT_EXCEPT_TABLE): Ditto.
 205
 206 2006-01-06  Zdenek Dvorak <dvorakz@suse.cz>
 207
 208         PR tree-optimization/18527
 209         * tree-ssa-loop-niter.c (number_of_iterations_cond,
 210         number_of_iterations_special, number_of_iterations_exit):
 211         Move base and step of an iv to a single structure.  Add
 212         no_overflow flag, and use it in # of iterations analysis.
 213         * tree-scalar-evolution.c (analyze_scalar_evolution_in_loop): Add
 214         folded_casts argument.
 215         (simple_iv): Pass base and step in a structure.  Set no_overflow
 216         flag.
 217         (scev_const_prop): Add argument to analyze_scalar_evolution_in_loop.
 218         Evaluate expensiveness of computing # of iterations instead of
 219         the final expression.
 220         * tree-scalar-evolution.h (affine_iv): New structure.
 221         (simple_iv): Declaration changed.
 222         * tree-chrec.c (chrec_apply): Handle chrecs containing symbols.
 223         * tree-ssa-loop-ivopts.c (determine_biv_step, find_givs_in_stmt_scev,
 224         find_givs_in_stmt): Changed due to simple_iv change.
 225
 226 2006-01-06  Jeff Law  <law@redhat.com>
 227
 228         PR ada/24994
 229         * tree-cfg.c (bsi_replace): Rename final argument from
 230         PRESERVE_EH_INFO to UPDATE_EH_INFO.  Fix typo in last
 231         change (stmt -> orig_stmt).
 232         * tree-eh.c (verify_eh_throw_stmt_node): New function.
 233         (bsi_remove): Add new argument.  Remove EH information
 234         if requested.
 235         (verify_eh_throw_table_statements): New function.
 236         (bsi_remove): Add new argument REMOVE_EH_INFO.  All callers
 237         updated.
 238         * tree-optimize.c (execute_free_cfg_annotations): Verify
 239         the EH throw statement table after removing annotations.
 240         * except.h (verify_eh_throw_table_statements): Prototype.
 241         * tree-flow.h (bsi_remove): Update prototype.
 242         * tree-vrp.c (remove_range_assertions): Add new argument to
 243         bsi_remove call.
 244         * tree-ssa-loop-im.c (move_computations_stmt): Likewise.
 245         * tree-complex.c (expand_complex_div_wide): Likewise.
 246         * tree-ssa-threadupdate.c (remove_ctrl_stmt_and_useless_edges): Likewise
 247         * tree-tailcall.c (eliminate_tailcall): Likewise.
 248         * tree-ssa-dse.c (dse_optimize_stmt): Likewise.
 249         * tree-ssa-loop-ivopts.c (remove_statement): Likewise.
 250         * tree-nrv.c (tree_nrv): Likewise.
 251         * tree-vectorizer.c (slpeel_make_loop_iterate_ntimes): Likewise.
 252         * tree-if-conv.c (tree_if_convert_cond_expr): Likewise.
 253         (combine_blocks): Likewise.
 254         * tree-ssa-phiopt.c (replace_phi_edge_with_variable): Likewise.
 255         * tree-cfgcleanup.c (cleanup_ctrl_expr_graph): Likewise.
 256         (cleanup_control_flow): Likewise.
 257         (remove_forwarder_block): Likewise.
 258         * tree-ssa-pre.c (remove_dead_inserted_code): Likewise.
 259         * tree-sra.c (sra_replace): Likewise.
 260         * tree-ssa-forwprop.c (forward_propagate_into_cond): Likewise.
 261         (forward_propagate_single_use_vars): Likewise.
 262         * tree-ssa-dce.c (remove_dead_stmt): Likewise.
 263         * tree-inline.c (expand_call_inline): Likewise.
 264         * tree-vect-transform.c (vect_transform_loop): Likewise.
 265         * tree-outof-ssa.c (rewrite_trees): Likewise.
 266         * tree-cfg.c (make_goto_expr_edges): Likewise.
 267         (cleanup_dead_labels): Likewise.
 268         (tree_merge_blocks, remove_bb, disband_implicit_edges): Likewise.
 269         (bsi_move_before, bsi_move_after): Likewise.
 270         (bsi_move_to_bb_end, try_redirect_by_replacing_jump): Likewise
 271         (tree_redirect_edge_and_branch, tree_split_block): Likewise.
 272
 273 2006-01-06  Andrew Pinski  <pinskia@physics.uc.edu>
 274
 275         PR tree-opt/25528
 276         * tree-ssa-alias.c (find_used_portions): Handle REALPART_EXPR
 277         and IMAGPART_EXPR.
 278         * tree-flow-inline.h (var_can_have_subvars): Handle complex types
 279         on non gimple variables.  Also add checks at the top for decls and
 280         mtags.
 281         * tree-ssa-structalias.c (push_fields_onto_fieldstack): Handle
 282         complex types.
 283         * tree-ssa-operands.c (parse_ssa_operands): Handle REALPART_EXPR
 284         and IMAGPART_EXPR for creating MUST_DEFs.
 285         (get_expr_operands): Handle SSA_NAME, STRUCT_FIELD_TAG, TYPE_MEMORY_TAG,
 286         and NAME_MEMORY_TAG separately from the DECLs.
 287
 288 2006-01-06  Richard Guenther  <rguenther@suse.de>
 289
 290         * tree-dfa.c (mark_new_vars_to_rename): Create stmt
 291         annotation, if necessary.
 292         * tree-ssa-pre.c (create_expression_by_pieces): Remove
 293         redundant calls to update_stmt.
 294         * tree-ssa-forwprop.c (tidy_after_forward_propagate_addr):
 295         Likewise.
 296
 297 2006-01-05  Richard Henderson  <rth@redhat.com>
 298
 299         * c-parser.c (c_parser_objc_methodprotolist): Handle CPP_PRAGMA.
 300
 301 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
 302
 303         * c-typeck.c: Update copyright date.
 304
 305 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
 306
 307         * c-typeck.c (build_c_cast): Always warn when casting
 308         from a pointer to an integer of different size, even if
 309         the node was constant.
 310
 311 2006-01-05  Richard Guenther  <rguenther@suse.de>
 312
 313         PR tree-optimization/22555
 314         * tree-ssa-alias.c (create_overlap_variables_for): Do not give up,
 315         if one structure field is an array.
 316         * tree-ssa-operands.c (get_expr_operands): Continue scanning
 317         operands even if we found a subvar, but ignore VOPs in this
 318         case.
 319         * tree-ssa-loop-ivopts.c (rewrite_use): Mark new vars in stmt
 320         for renaming.
 321         * tree-ssa-loop.c (pass_iv_optimize): Schedule TODO_update_ssa.
 322
 323 2006-01-05  Richard Earnshaw  <rearnsha@arm.com>
 324
 325         PR middle-end/24998
 326         * arm/t-netbsd (LIB2FUNCS_EXTRA): Define.
 327
 328 2006-01-05  Richard Guenther  <rguenther@suse.de>
 329             Diego Novillo  <dnovillo@redhat.com>
 330
 331         * tree-pass.h (TODO_remove_unused_locals): Define.
 332         * gimple-low.c (expand_var_p, remove_useless_vars,
 333         pass_remove_useless_vars): Remove.  Update all users.
 334         * tree-ssa-live.c (mark_all_vars_used_1): Handle SSA names.
 335         (remove_unused_locals): New function.
 336         * tree-flow.h (remove_unused_locals): Declare.
 337         * passes.c (execute_todo): Call remove_unused_locals if
 338         TODO_remove_unused_locals is set.
 339         * tree-into-ssa.c (pass_build_ssa): Add TODO_remove_unused_locals.
 340         * tree-ssa-dce.c (pass_dce): Likewise.
 341         * tree-outof-ssa.c (pass_del_ssa): Likewise.
 342
 343 2006-01-05  Richard Guenther  <rguenther@suse.de>
 344
 345         * tree-flow.h (struct fieldoff): Decompose field to
 346         type, size and decl.
 347         * tree-ssa-alias.c (create_sft): Take type as parameter.
 348         (create_overlap_variables_for): Store type, size and decl
 349         in the fieldoff structure.
 350         * tree-ssa-structalias.c (fieldoff_compare): Adjust users
 351         of struct fieldoff.
 352         (push_fields_onto_fieldstack): Likewise.
 353         (create_variable_info_for): Likewise.  Use offset for the
 354         SFT name if the decl is not available.
 355
 356 2006-01-04  Paul Brook  <paul@codesourcery.com>
 357
 358         * config/m68k/m68k.c (m68k_output_mi_thunk): Use jmp, not jsr.
 359
 360 2006-01-04  Daniel Berlin  <dberlin@dberlin.org>
 361
 362         * lambda-code.c (can_put_in_inner_loop): Relax
 363         restrictions.
 364         (can_put_after_inner_loop): New function.
 365         (can_convert_to_perfect_nest): Use can_put_after_inner_loop as well.
 366         (perfect_nestify): Change to make copies and modify uses.
 367
 368 2006-01-04  Richard Henderson  <rth@redhat.com>
 369
 370         Merge from gomp branch:
 371         * c-lex.c (c_lex_with_flags) <CPP_PRAGMA>: Smuggle pragma id
 372         via integer constant.
 373         (pragma_lex): Remove.
 374         * c-pch.c (c_common_pch_pragma): Accept the name as an argument,
 375         rather than parsing it.
 376         * c-pragma.c (handle_pragma_weak, handle_pragma_redefine_extname,
 377         handle_pragma_extern_prefix): Add %< %> quotes.
 378         (registered_pragmas): New.
 379         (c_register_pragma_1): New.
 380         (c_register_pragma): Use it.
 381         (c_register_pragma_with_expansion): Likewise.
 382         (c_invoke_pragma_handler): New.
 383         (init_pragma): Use cpp_register_deferred_pragma directly for
 384         pch_preprocess.
 385         * c-pragma.h (enum pragma_kind): New.
 386         (pragma_handler): New.
 387         (c_invoke_pragma_handler): Declare.
 388         * c-common.c (c_parse_error): Pretty print CPP_PRAGMA and
 389         CPP_PRAGMA_EOL.
 390         * c-common.h (c_common_pch_pragma): Update decl.
 391         * Makefile.in (c-parser.o): Update dependencies.
 392         (GTFILES): Add c-pragma.h.
 393         * c-parser.c (struct c_token): Add pragma_kind.
 394         (struct c_parser): Add in_pragma.
 395         (c_lex_one_token): Always initialize keyword and pragma_kind.
 396         Extract data for CPP_PRAGMA.
 397         (c_parser_peek_2nd_token): Deny CPP_PRAGMA_EOL.
 398         (c_parser_consume_token): Don't allow CPP_PRAGMA unless errors.
 399         Don't allow CPP_PRAGMA_EOL if in_pragma.
 400         (c_parser_consume_pragma): New.
 401         (c_parser_skip_until_found): Stop on CPP_PRAGMA_EOL.
 402         (c_parser_skip_to_end_of_parameter): Likewise.
 403         (c_parser_skip_to_end_of_block_or_statement): Likewise.
 404         (c_parser_skip_to_pragma_eol): New.
 405         (c_parser_external_declaration): Handle CPP_PRAGMA.
 406         (c_parser_compound_statement_nostart): Likewise.
 407         (c_parser_statement_after_labels): Likewise.
 408         (c_parser_pragma): New.
 409         (pragma_lex): Likewise.
 410         (c_parser_pragma_pch_preprocess): New.
 411         (c_parser_new): Merge into ...
 412         (c_parse_file): ... here.  Call c_parser_pragma_pch_preprocess.
 413
 414 2006-01-04  Jeff Law  <law@redhat.com>
 415
 416         PR ada/24994
 417         * tree-cfg.c (bsi_replace): Remove the original statement
 418         from the EH throw statement table.
 419
 420 2006-01-04  Jakub Jelinek  <jakub@redhat.com>
 421
 422         * config/i386/pmm_malloc.h (posix_memalign): If __cplusplus,
 423         make the prototype extern "C" and add throw ().
 424
 425         PR target/25554
 426         * config/i386/i386.md (testqi_ext_3): Ensure len is positive
 427         and pos non-negative and pos + len <= 32.
 428         (testqi_ext_3_rex64): Ensure len is positive and pos non-negative,
 429         drop pos + len < HOST_BITS_PER_WIDE_INT test.
 430         (testqi_ext_3* splitter): Handle pos + len == HOST_BITS_PER_WIDE_INT.
 431
 432         PR c/25559
 433         * c-common.c (handle_vector_size_attribute): Reject zero vector size
 434         as well as sizes not multiple of component size.
 435
 436         PR debug/25562
 437         * function.c (instantiate_expr): New function.
 438         (instantiate_decls_1, instantiate_decls): If DECL_HAS_VALUE_EXPR_P,
 439         walk its DECL_VALUE_EXPR with instantiate_expr.
 440
 441         * dwarf2out.c (loc_descriptor_from_tree_1): Don't add
 442         DW_OP_deref{,_size} if address isn't going to be added.
 443
 444 2006-01-04  Ben Elliston  <bje@au.ibm.com>
 445
 446         * config/fp-bit.h: Use top-of-file comment from libgcc2.c.
 447         * config/fp-bit.c: Likewise.
 448
 449 2006-01-03  Daniel Berlin  <dberlin@dberlin.org>
 450
 451         * dominance.c: Add comment about why we use DFS numbering
 452         of dominance tree.
 453
 454 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
 455             Richard Henderson  <rth@redhat.com>
 456
 457         Merge from gomp-branch:
 458         * varasm.c (assemble_variable): Handle thread-local COMMON data.
 459         * defaults.h (ASM_OUTPUT_TLS_COMMON): Define.
 460
 461 2006-01-03  Paolo Bonzini  <bonzini@gnu.org>
 462
 463         PR rtl-optimization/25578
 464         * combine.c (combine_simplify_rtx, force_to_mode): Don't
 465         pass a parameter to simplify_shift_const if changing ASHIFTRT
 466         to LSHIFTRT.
 467
 468 2006-01-03  Adrian Straetling  <straetling@de.ibm.com>
 469
 470         * gcc/builtins.c (get_builtin_sync_mem): New function.
 471         (expand_builtin_sync_operation, expand_builtin_compare_and_swap,
 472         expand_builtin_lock_test_and_set, expand_builtin_lock_release):
 473         Call get_builtin_sync_mem to generate mem rtx.
 474
 475 2006-01-03  Richard Guenther  <rguenther@suse.de>
 476
 477         PR c/25183
 478         * stmt.c (add_case_node): Make sure to clear overflow flags
 479         from ranges.
 480
 481 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
 482
 483         Merge from gomp-branch.
 484         * config/sparc/sync.md: New file.
 485         * config/sparc/sparc.md (UNSPECV_MEMBAR, UNSPECV_CAS, UNSPECV_SWAP,
 486         UNSPECV_LDSTUB): New constants.
 487         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): New function.
 488         * config/sparc/predicates.md (memory_reg_operand): New predicate.
 489         * config/sparc/sparc-protos.h (sparc_expand_compare_and_swap_12): New
 490         prototype.
 491
 492 2006-01-03  Roger Sayle  <roger@eyesopen.com>
 493
 494         * combine.c (reg_subword_p): New predicate to test whether the
 495         destination of a set refers to a subword/piece of a register.
 496         (try_combine): Generalize the code to merge the setting of a
 497         pseudo to a constant followed by a set of a subword of that
 498         register to a constant.
 499
 500 2006-01-03  Kazu Hirata  <kazu@codesourcery.com>
 501
 502         * basic-block.h (control_flow_graph): Change the type of
 503         x_label_to_block_map to VEC(basic_block,gc) *.
 504         * tree-cfg.c (init_empty_tree_cfg, label_to_block_fn,
 505         set_bb_for_stmt): Adjust the uses of x_label_to_block_map.
 506
 507         * tree-ssa-propagate.c (cfg_blocks): Change the type to
 508         VEC(basic_block,heap) *.
 509         (cfg_blocks_add, cfg_blocks_get, ssa_prop_init,
 510         ssa_prop_fini): Adjust the uses of cfg_blocks.
 511
 512 2006-01-03  Steven Bosscher  <stevenb.gcc@gmail.com>
 513
 514         * fold-const.c (operand_equal_p): Accept a NULL operand 0 for
 515         COMPONENT_REFs.
 516         * emit-rtl.c (mem_attrs_htab_eq): Use iterative_hash_expr for
 517         hashing trees instead of a pointer hash.
 518         (mem_attrs_htab_eq): Do a deep compare instead of a pointer
 519         compare for MEM_EXPR.
 520
 521         PR rtl-optimization/25130
 522         * cse.c (exp_equiv_p): Compare MEM_ATTRS instead of MEM_ALIAS_SET
 523         when comparing MEMs for GCSE
 524
 525 2006-01-03  Ben Elliston  <bje@au.ibm.com>
 526
 527         * targhooks.h (default_decimal_float_supported_p): Declare.
 528         * targhooks.c (default_decimal_float_supported_p): Define.
 529         * target-def.h (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Redefine to
 530         `default_decimal_float_supported_p'.
 531         * doc/tm.texi (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Update.
 532
 533 2006-01-02  Adam Nemet  <anemet@caviumnetworks.com>
 534
 535         * combine.c (apply_distributive_law <SUBREG>): Check
 536         TRULY_NOOP_TRUNCATION.
 537
 538 2006-01-02  Geoffrey Keating  <geoffk@apple.com>
 539
 540         * dwarf2out.c (have_switched_text_section): Delete.
 541         (have_multiple_function_sections): New.
 542         (have_location_lists): Make 'bool'.
 543         (add_AT_loc_list): Use 'true' not '1'.
 544         (dwarf2out_switch_text_section): Set have_multiple_function_sections.
 545         (output_loc_list): Use have_multiple_function_sections.
 546         (output_ranges): Likewise.
 547         (dwarf2out_begin_function): Set have_multiple_function_sections if
 548         necessary.
 549         (dwarf2out_source_line): Don't fake separate_line_info_table_in_use.
 550         Check function_section rather than DECL_SECTION_NAME.
 551         (dwarf2out_finish): Use have_multiple_function_sections.
 552         Don't clear have_location_lists.
 553
 554 2006-01-02  Eric Botcazou  <ebotcazou@adacore.com>
 555             Jan Hubicka  <jh@suse.cz>
 556
 557         * cfglayout.c (fixup_reorder_chain): Remove kludge for the
 558         case of conditional jump jumping to the next instruction.
 559         * cfgrtl.c (force_nonfallthru_and_redirect): Accept all
 560         cases of conditional jump jumping to the next instruction.
 561
 562 2006-01-02  Jan Hubicka  <jh@suse.cz>
 563
 564         * i386.c (*_cost): Add COSTS_N_INSNS.
 565         (ix86_rtx_costs): Do not use COSTS_N_INSNS.
 566
 567 2006-01-02  Paolo Bonzini  <bonzini@gnu.org>
 568
 569         PR target/25259
 570         * Makefile.in (DECNUMINC): Include libdecnumber's build directory.
 571
 572 2006-01-02  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
 573
 574         * config/arm/arm.c (all_fpus): Fix comment typo.
 575         * config/darwin.c: Likewise.
 576         * config/frv/frv.h (FRV_STRUCT_VALUE_REGNUM): Likewise.
 577         * config/h8300/h8300.md (extendqisi2_h8300hs): Likewise.
 578         * config/m68hc11/m68hc11.c (m68hc11_reload_operands): Likewise.
 579
 580 2006-01-01  David Edelsohn  <edelsohn@gnu.org>
 581
 582         * config/rs6000/rs6000.c (rs6000_expand_compare_and_swapqhi): New.
 583         (rs6000_split_compare_and_swapqhi): New.
 584         * config/rs6000/sync.md (sync_compare_and_swap{hi,qi}): New.
 585         (sync_compare_and_swapqhi_internal): New.
 586         * config/rs6000/rs6000-protos.h: Declare.