* tree-sra.c (try_instantiate_multiple_fields): Needlessly

[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog

2007-04-05  Alexandre Oliva  <aoliva@redhat.com>

        * tree-sra.c (try_instantiate_multiple_fields): Needlessly
        initialize align to silence bogus warning.

2007-04-05  Alexandre Oliva  <aoliva@redhat.com>

        PR middle-end/22156
        * tree-sra.c (struct sra_elt): Add in_bitfld_block.  Remove
        all_no_warning.
        (struct sra_walk_fns): Remove use_all parameter from use.
        (sra_hash_tree): Handle BIT_FIELD_REFs.
        (sra_elt_hash): Don't hash bitfld blocks.
        (sra_elt_eq): Skip them in parent compares as well.  Handle
        BIT_FIELD_REFs.
        (sra_walk_expr): Don't maintain or pass down use_all_p.
        (scan_use): Remove use_all parameter.
        (scalarize_use): Likewise.  Re-expand assignment to
        BIT_FIELD_REF of gimple_reg.  De-scalarize before input or
        output, and re-scalarize after output.  Don't mark anything
        for no warning.
        (scalarize_ldst): Adjust.
        (scalarize_walk_gimple_modify_statement): Likewise.
        (build_element_name_1): Handle BIT_FIELD_REFs.
        (instantiate_element): Don't warn for any element whose parent
        is used as a whole.
        (instantiate_missing_elements_1): Return the sra_elt.
        (canon_type_for_field): New.
        (try_instantiate_multiple_fields): New.
        (instantiate_missing_elemnts): Use them.
        (mark_no_warning): Removed.
        (generate_one_element_ref): Handle BIT_FIELD_REFs.
        (REPLDUP, sra_build_elt_assignment): New.
        (generate_copy_inout): Use them.
        (generate_element_copy): Likewise.  Handle bitfld differences.
        (generate_element_zero): Don't recurse for blocks.  Use
        sra_build_elt_assignment.
        (generate_one_element_int): Take elt instead of var.  Use
        sra_build_elt_assignment.
        (generate_element_init_1): Adjust.
        (scalarize_use, scalarize_copy): Use REPLDUP.
        (scalarize_ldst): Move assert before dereference.
        (dump_sra_elt_name): Handle BIT_FIELD_REFs.

2007-04-05  Steven Bosscher  <steven@gcc.gnu.org>

        * regmove.c: Fix unused variable warnings due to previous commit.

2007-04-05  Steven Bosscher  <steven@gcc.gnu.org>

        * regmove.c (STACK_GROWS_DOWNWARD): Don't boolean-ize.
        (regmove_bb_head): Remove.
        (copy_src_to_dest): Don't update regmove_bb_head and BB_HEAD.
        (regmove_optimize): Don't do unnecessary CFG fixes for non-existing
        problems with fixup_match_1.
        Don't initialize/free regmove_bb_head.

        (reg_is_remote_constant_p): If an insn is in the same basic block
        but not before INSN, consider it remote, too.

2007-04-05  Anatoly Sokolov <aesok@post.ru>

        PR target/25448
        * config/avr/avr.c (avr_handle_fndecl_attribute): Use the 
        DECL_ASSEMBLER_NAME, not the DECL_NAME.

2007-04-05  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.h (TARGET_CPU_CPP_BUILTINS): Reformat.
        (CONDITIONAL_REGISTER_USAGE): Likewise.

2007-04-04  Richard Henderson  <rth@redhat.com>

        * config/alpha/lib1funcs.asm: Remove unused file.

2007-04-04  Brooks Moses  <brooks.moses@codesourcery.com>

        PR other/31356
        * opts.c (print_specific_help): Fix --help=<language>
        header line.
        (common_handle_option): Support --help=common.

2007-04-04  Brooks Moses  <brooks.moses@codesourcery.com>

        PR other/31353
        * gcc.c (main): Do not run the linker if
        print_subprocess_help indicates that it shouldn't be
        run.

2007-04-04  Brooks Moses  <brooks.moses@codesourcery.com>

        PR doc/31355
        * doc/invoke.texi (--help=): Document <languages> value, fix
        formatting in tables of values.

2007-04-04  Danny Smith  <dannysmith.users.sourceforge.net>

        * config/i386/winnt-cxx.c (i386_pe_type_dllimport_p): Don't ignore
        dllimport attribute of virtual methods.

2007-04-04  Chen Liqin  <liqin@sunnorth.com.cn>

        * config/score/crti.asm: Change _bss_start to __bss_start.
        * config/score/score.h (CONDITIONAL_REGISTER_USAGE): Added.
        (OUTGOING_REG_PARM_STACK_SPACE) update.
        * config/score/score.opt: add options to make backend support
        score5, score5u, score7 and score7d.
        * config/score/score.md: Likewise.
        * config/score/misc.md: Likewise.
        * config/score/mac.md: Likewise.
        * doc/invoke.texi: Likewise.
        * doc/md.texi: update constraints define.

2007-04-03  Richard Henderson  <rth@redhat.com>

        * expr.c (store_expr): If get_signed_or_unsigned_type doesn't yield
        an appropriate type, use the mode instead.

2007-04-03  Richard Sandiford  <richard@codesourcery.com>

        * config.gcc (mips-wrs-vxworks): Add vx-common.h to tm_file.
        Set the default --with-arch setting to mips2.
        * config/mips/t-vxworks (MULTILIB_OPTIONS, MULTILIB_MATCHES)
        (MULTILIB_EXCEPTIONS): Redefine with new multilibs.
        (MULTILIB_OSDIRNAMES): Delete.
        (MULTILIB_DIRNAMES): Define.
        * config/mips/vxworks.h (LINK_SPEC): Add VXWORKS_LINK_SPEC.
        (LIB_SPEC, STARTFILE_SPEC, ENDFILE_SPEC): Define.
        (TARGET_OS_CPP_BUILTINS): Incorporate old SUBTARGET_CPP_SPEC
        definitions, except for _WRS_R3K_EXC_SUPPORT.  Call
        VXWORKS_OS_CPP_BUILTINS.
        (SUBTARGET_CPP_SPEC): Redefine to VXWORKS_ADDITIONAL_CPP_SPEC.
        (MIPS_DEBUGGING_INFO): Undefine.
        (FUNCTION_PROFILER): Define to VXWORKS_FUNCTION_PROFILER.

2007-04-03  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/30704
        * fold-const.c (native_encode_real): Encode real.c provided longs
        as a series of 32-bit native integers.
        (native_interpret_real): Interpret buffer as a series of 32-bit
        native integers.

2007-04-03  Richard Guenther  <rguenther@suse.de>

        * genpreds.c (write_insn_constraint_len): Write function
        optimized for CONSTRAINT_LEN implementation.
        (write_tm_preds_h): Output insn_constraint_len inline and
        use it for CONSTRAINT_LEN.
        (write_insn_preds_c): Don't output insn_constraint_len.
        * doc/md.texi (define_register_constraint): Document multi-letter
        constraints shall have the same length if they start with the same
        letter.

2007-04-03  Uros Bizjak  <ubizjak@gmail.com>

        PR target/31175
        * config/i386/i386.md (isinf<mode>2): Expand only when
        TARGET_C99_FUNCTIONS is set.

2007-04-03  Uros Bizjak  <ubizjak@gmail.com>

        * config.gcc (i[34567]86-*-linux*): Add i386/t-crtpc to tm-file.
        (x86_64-*-linux*): Ditto.
        * config/i386/i386.opt (mpc): New option.
        * config/i386/i386.c (overrride_options): Handle
        ix87_precision_string.
        * config/i386/crtprec.c: New file.
        * config/i386/t-crtpc: Ditto.
        * config/i386/linux.h (ENDFILE_SPEC): Add handling of -mpc32, -mpc64
        and -mpc80 options.
        * config/i386/linux64.h (ENDFILE_SPEC): Ditto.
        * config/i386/t-linux64 (EXTRA_MULTILIB_PARTS): Add
        crtprec32.o, crtprec64.o and crtprec80.o.

        * doc/invoke.texi (Machine Dependent Options): Add -mpc32, -mpc64
        and -mpc80 options.
        (i386 and x86-64 Options): Document -mpc32, -mpc64 and -mpc80 options.

2007-04-02  Eric Christopher  <echristo@apple.com>

        * doc/invoke.texi (i386 and x86-64 Options): Document -m64
        limitations on darwin.

2007-04-02  Anatoly Sokolov <aesok@post.ru>

        PR target/31137
        * config/avr/avr.c (avr_rtx_costs): Add missing 'break' statements.

2007-04-02  Dave Korn  <dave.korn@artimi.com>

        * doc/tm.texi (FUNCTION_MODE): Update and extend documentation.

2007-04-02  Dave Korn  <dave.korn@artimi.com>

        * libgcc2.h (exception_descriptor): Don't forward-declare.
        (__get_eh_table_language, __get_eh_table_version): Delete
        prototypes of long-dead functions.

2007-04-01  Daniel Berlin  <dberlin@dberlin.org>

        * ebitmap.h: New file
        * ebitmap.c: New file
        * Makefile.in (ebitmap.o): New target.

2007-04-01  Jan Hubicka  <jh@suse.cz>

        * emit-rtl.c (emit_insn_before_setloc): Do not ICE when asked to emit
        before very first instruction.

2007-04-01  Jan Hubicka  <jh@suse.cz>

        * ggc-page.c (ggc_print_statistics): Fix formatting string to avoid
        waring on 64bit hosts.
        * bitmap.h: Fix typo in bitmap_head_def.

2007-04-01  Steven Bosscher  <steven@gcc.gnu.org>

        PR rtl-optimization/31391
        * cfgcleanup.c (try_optimize_cfg): If a removed label is turned
        into a DELETED_LABEL note, and the label is in an empty basic
        block, update BB_END as well as BB_HEAD.

2007-04-01  Richard Henderson  <rth@redhat.com>

        PR tree-optimization/31169
        * tree-vrp.c (extract_range_from_binary_expr) <RSHIFT_EXPR>: Drop
        to varying if the range is outside [0,  prec-1].

2007-04-01  Richard Sandiford  <richard@codesourcery.com>

        PR target/31388
        * config/mips/mips.md (load_const_gp): New insn.
        * config/mips/mips.c (mips_split_symbol): Avoid using or creating
        the MIPS16 GP pseudo register if no_new_pseudos.
        (mips16_gp_pseudo_reg): Use gen_load_const_gp.

2007-03-31  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR target/31364
        * config/rs6000/rs6000.md (call): Convert to LR hard reg for
        secureplt.
        (call_value): Likewise.

2007-03-31  Wolfgang Bangerth  <bangerth@dealii.org>
            Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR 14737
        * doc/invoke.texi: (optimization options): Reword description
        of -ffast-math. Document its primary purpose.

2007-03-31  Richard Guenther  <rguenther@suse.de>

        * omp-low.c (splay-tree.h): Include.
        (lookup_decl): Replace splay-tree usage by pointer-map.
        (maybe_lookup_decl): Likewise.
        (new_omp_context): Likewise.
        (delete_omp_context): Likewise.
        * gimplify.c (splay-tree.h): Include.
        * tree-inline.c (insert_decl_map): Replace splay-tree usage by
        pointer-map.
        (remap_ssa_name): Likewise.
        (remap_decl): Likewise.
        (remap_type_1): Likewise.
        (remap_type): Likewise.
        (copy_body_r): Likewise.
        (expand_call_inline): Likewise.
        (clone_body): Likewise.
        (copy_tree_r): Likewise.
        (remap_save_expr): Likewise.
        (unsave_r): Likewise.
        (unsave_expr_now): Likewise.
        (tree_function_versioning): Likewise.
        (build_duplicate_type): Likewise.
        * tree-inline.h (pointer-set.h): Include instead of splay-tree.h.
        (struct copy_body_data): Replace splay-tree by pointer-map.
        * Makefile.in (TREE_INLINE_H): Depend on pointer-map.h,
        not $(SPLAY_TREE_H).
        (gimplify.o): Depend on $(SPLAY_TREE_H).
        (omp-low.p): Likewise.

2007-03-31  Anatoly Sokolov <aesok@post.ru>

        * config/avr/predicates.md (even_register_operand,
        odd_register_operand): New predicates.
        * config/avr/avr.md (movw peephole2): New.
        (movw_r peephole2): New.

2007-03-30  Rafael Avila de Espindola  <espindola@google.com>

        * tree.h (get_signed_or_unsigned_type): New.
        * fold-const.c (operand_equal_for_comparison_p): Use
        get_signed_or_unsigned_type instead of
        lang_hooks.types.signed_or_unsigned_type.
        * expr.c (store_expr): Ditto.
        * langhooks.c (get_signed_or_unsigned_type): New.
        (lhd_signed_or_unsigned_type): New.
        * langhooks.h (lhd_signed_or_unsigned_type): New.
        * langhooks-def.h (LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE): Define.

2007-03-30  Richard Henderson  <rth@redhat.com>

        * tree-ssa-loop-ivopts.c: Include target.h.
        (produce_memory_decl_rtl): Pass the rtx through encode_section_info.
        (get_address_cost): Force SYMBOL_FLAG_LOCAL set.
        (force_expr_to_var_cost): Use produce_memory_decl_rtl.
        * Makefile.in (tree-ssa-loop-ivopts.o): Depend on TARGET_H.

2007-03-30  Richard Henderson  <rth@redhat.com>
            Kai Tietz  <kai.tietz@onevision.com>

        * config/i386/cygming.h (DWARF2_DEBUGGING_INFO): Enable by
        default for 64-bit.
        (PREFERRED_DEBUGGING_TYPE): Prefer dwarf2 for 64-bit.
        (TARGET_64BIT_MS_ABI): New.
        (DBX_REGISTER_NUMBER): Handle 64-bit.
        (SIZE_TYPE, PTRDIFF_TYPE): Use long long for 64-bit.
        (LONG_TYPE_SIZE): Force to 32.
        (REG_PARM_STACK_SPACE): New.
        (OUTGOING_REG_PARM_STACK_SPACE): New.
        (REGPARM_MAX, SSE_REGPARM_MAX): New.
        (HANDLE_PRAGMA_PUSH_POP_MACRO): New.
        (STACK_BOUNDARY): Use 128 for 64-bit.
        * config/i386/cygwin.asm: Use push/ret to preserve call stack.
        Add 64-bit implementation.
        * config/i386/gthr-win32.c (__gthr_win32_key_create): Mark dtor
        argument unused.
        * config/i386/i386.c (x86_64_ms_abi_int_parameter_registers): New.
        (override_options): Set ix86_cmodel for TARGET_64BIT_MS_ABI.
        Warn for -mregparm, -mrtd in 64-bit mode; force ix86_regparm
        for 64-bit; use TARGET_SUBTARGET64_DEFAULT.
        (ix86_handle_cconv_attribute): Don't warn when ignoring if
        TARGET_64BIT_MS_ABI.
        (ix86_function_arg_regno_p): Handle TARGET_64BIT_MS_ABI.
        (ix86_pass_by_reference): Likewise.
        (ix86_function_value_regno_p): Likewise.
        (ix86_build_builtin_va_list): Likewise.
        (ix86_va_start, ix86_gimplify_va_arg): Likewise.
        (function_arg_advance_ms_64): New.
        (function_arg_advance): Call it.
        (function_arg_ms_64): New.
        (function_arg): Call it.
        (function_value_ms_64): New.
        (ix86_function_value_1): Call it.
        (return_in_memory_ms_64): New.
        (ix86_return_in_memory): Call it.
        (setup_incoming_varargs_ms_64): New.
        (ix86_setup_incoming_varargs): Call it.
        (ix86_expand_prologue): Handle 64-bit stack probing.
        (legitimize_pic_address): Handle TARGET_64BIT_MS_ABI.
        (output_pic_addr_const): Likewise.
        (x86_this_parameter): Likewise.
        (x86_output_mi_thunk): Likewise.
        (x86_function_profiler): Likewise.
        (TARGET_STRICT_ARGUMENT_NAMING): New.
        * config/i386/i386.h (TARGET_SUBTARGET64_DEFAULT): New.
        (TARGET_64BIT_MS_ABI): New.
        (CONDITIONAL_REGISTER_USAGE): Handle TARGET_64BIT_MS_ABI.
        * config/i386/i386.md (allocate_stack_worker): Remove.
        (allocate_stack_worker_32): Rename from allocate_stack_worker_1;
        describe the clobber of eax without a match_scratch.
        (allocate_stack_worker_postreload): Remove.
        (allocate_stack_worker_64): Rename from allocate_stack_worker_rex64;
        describe the clobbers of rax, r10, r11 properly; use __chkstk symbol.
        (allocate_stack_worker_rex64_postreload): Remove.
        (allocate_stack): Handle 64-bit.
        * config/i386/i386elf (TARGET_SUBTARGET_DEFAULT): Remove.
        * config/i386/mingw32.h (TARGET_VERSION): Set correctly for 64-bit.
        (EXTRA_OS_CPP_BUILTINS): Handle 64-bit.
        (STANDARD_INCLUDE_DIR): Handle TARGET_64BIT_DEFAULT.
        (STANDARD_STARTFILE_PREFIX_1): Likewise.
        * config/i386/unix.h (TARGET_SUBTARGET64_DEFAULT): New.
        * config.build (x86_64-*-mingw*): New host.
        * config.host (x86_64-*-mingw*): New host.
        * config.gcc (x86_64-*-mingw*): New target.
        * gthr-win32.h (__gthread_key_create): Mark dtor unused.

2007-03-30  Richard Henderson  <rth@redhat.com>
            Kai Tietz  <kai.tietz@onevision.com>

        * c-pragma.c (struct def_pragma_macro_value): New.
        (struct def_pragma_macro): New.
        (pushed_macro_table): New.
        (dpm_hash, dpm_eq): New.
        (handle_pragma_push_macro, handle_pragma_pop_macro): New.
        (init_pragma): Install them.
        * doc/tm.texi (HANDLE_PRAGMA_PUSH_POP_MACRO): New.

2007-03-30  Anatoly Sokolov <aesok@post.ru>

        * config/avr/avr.c (avr_override_options): Clear
        'flag_delete_null_pointer_checks'.

2007-03-30  Paolo Carlini  <pcarlini@suse.de>

        PR c++/26099
        * c-common.h (enum rid): Add RID_HAS_NOTHROW_ASSIGN,
        RID_HAS_NOTHROW_CONSTRUCTOR, RID_HAS_NOTHROW_COPY,
        RID_HAS_TRIVIAL_ASSIGN, RID_HAS_TRIVIAL_CONSTRUCTOR,
        RID_HAS_TRIVIAL_COPY, RID_HAS_TRIVIAL_DESTRUCTOR,
        RID_HAS_VIRTUAL_DESTRUCTOR, RID_IS_ABSTRACT, RID_IS_BASE_OF,
        RID_IS_CONVERTIBLE_TO, RID_IS_CLASS, RID_IS_EMPTY, RID_IS_ENUM,
        RID_IS_POD, RID_IS_POLYMORPHIC, RID_IS_UNION, as
        C++ extensions.
        * doc/extend.texi (Extensions to the C++ Language): Add Type Traits.

2007-03-30  Steven Bosscher  <steven@gcc.gnu.org>

        * regmove.c: Move all of pass_stack_adjustments from here...
        * combine-stack-adj.c: ...to this new file.
        * Makefile.in: Add rules for combine-stack-adj.o.

2007-03-30  Zdenek Dvorak  <dvorakz@suse.cz>

        PR tree-optimization/31383
        * tree-data-ref.c (affine_function_equal_p): Do not require the vectors
        to have the same length.

2007-03-30  Jan Hubicka  <jh@suse.cz>

        PR middle-end/30700
        * dwarf2out.c (reference_to_unused): Ask cgraph for functions
        availablility; add more sanity checking; ask varpool only about
        VAR_DECL.

2007-03-29  Richard Henderson  <rth@redhat.com>

        * unwind-generic.h (_sleb128_t, _uleb128_t): Don't use HAVE_LONG_LONG
        to decide, but __SIZEOF_LONG_LONG__.

2007-03-29  Richard Henderson  <rth@redhat.com>

        * emutls.c (struct __emutls_array): New.
        (emutls_destroy): Use it instead of casting element 0 from void*.
        (__emutls_get_address): Likewise.

2007-03-29  Richard Henderson  <rth@redhat.com>

        * varasm.c (initializer_constant_valid_p): Don't deny
        DECL_DLLIMPORT_P on functions.

        * config/i386/cygming.h: Remove function declarations.
        (SUBTARGET_ENCODE_SECTION_INFO): Don't undef first.
        (ASM_OUTPUT_LABELREF): Remove.
        (COMMON_ASM_OP): Remove.
        (ASM_OUTPUT_COMMON): Remove.
        (ASM_OUTPUT_ALIGNED_DECL_COMMON): New.
        (ASM_DECLARE_OBJECT_NAME): Use i386_pe_maybe_record_exported_symbol.
        (ASM_DECLARE_FUNCTION_NAME): Likewise.
        * config/i386/i386-interix.h (SUBTARGET_ENCODE_SECTION_INFO):
        Rename from TARGET_ENCODE_SECTION_INFO.
        * config/i386/netware.h: Likewise.
        * config/i386/i386-protos.h: Update.
        * config/i386/i386.c (ix86_function_ok_for_sibcall): Turn ifdef
        of TARGET_DLLIMPORT_DECL_ATTRIBUTES into straight if.
        (legitimate_constant_p): Reject dllimports.
        (dllimport_map, get_dllimport_decl): New.
        (legitimize_dllimport_symbol): New.
        (legitimize_address, ix86_expand_move): Use it.
        (TARGET_BINDS_LOCAL_P): Redefine for TARGET_DLLIMPORT_DECL_ATTRIBUTES.
        * config/i386/i386.h (DLL_IMPORT_EXPORT_PREFIX): Remove.
        (SYMBOL_FLAG_DLLIMPORT, SYMBOL_REF_DLLIMPORT_P): New.
        (SYMBOL_FLAG_DLLEXPORT, SYMBOL_REF_DLLEXPORT_P): New.
        * config/i386/predicates.md (constant_call_address_operand): Only
        accept symbols; reject dllimport_p symbols.
        * config/i386/uwin.h (ASM_DECLARE_FUNCTION_NAME): Use
        i386_pe_maybe_record_exported_symbol.
        * config/i386/winnt.c (DLL_IMPORT_PREFIX, DLL_EXPORT_PREFIX): Remove.
        (i386_pe_determine_dllexport_p): Rename from i386_pe_dllexport_p.
        (i386_pe_determine_dllimport_p): Rename from i386_pe_dllimport_p;
        trust the setting of DECL_DLLIMPORT_P.
        (i386_pe_dllexport_name_p, i386_pe_dllimport_name_p): Remove.
        (i386_pe_mark_dllexport, i386_pe_mark_dllimport): Remove.
        (gen_stdcall_or_fastcall_suffix): Return NULL if no change required;
        tidy the argument scanning loop.
        (i386_pe_encode_section_info): Set SYMBOL_FLAG_DLLIMPORT and
        SYMBOL_FLAG_DLLEXPORT in SYMBOL_REF_FLAGS.
        (i386_pe_strip_name_encoding): Remove.
        (i386_pe_binds_local_p): New.
        (i386_pe_strip_name_encoding_full): Use default_strip_name_encoding.
        (i386_pe_output_labelref): Remove.
        (i386_pe_asm_output_aligned_decl_common): New.
        (i386_pe_maybe_record_exported_symbol): Rename from
        i386_pe_record_exported_symbol; check for dllexported symbols.

2007-03-29  Zack Weinberg  <zack@mrtock.ucsd.edu>

        * gengtype.c (oprintf): Mostly revert changes from 2007-03-26;
        add comment explaining why vsnprintf cannot be used.

2007-03-29  Douglas Gregor  <doug.gregor@gmail.com>

        PR tree-optimization/30666
        * tree.c (build_complex_type): When creating type names for DWARF2
        debug info, create TYPE_DECLs for TYPE_NAME instead of
        IDENTIFIER_NODEs.
        (build_common_tree_nodes_2): Use build_complex_type when building
        predefined complex types, to preserve canonical types.

2007-03-29  Steven Bosscher  <steven@gcc.gnu.org>

        * ifcvt.c (struct noce_if_info): Add then_else_reversed field.
        (noce_get_alt_condition): Look at it to determine whether to
        reverse the condition or not.
        (noce_get_condition): Substitute the truth for lies.
        (noce_find_if_block): Set the then_else_reversed field.

2007-03-29  Lars Poeschel <larsi@wh2.tu-dresden.de>

        * config/fr30/fr30.md (movdi): Do not accept immediates as the
        destination of this insn.
        * config/fr30/fr30.c (fr30_move_double): Use emit_move_insn rather
        than calling gen_rtx_SET directly.  Use r0 to hold the value of
        'address + 4' rather than a stack based temporary which can be
        mis-optimized away.

2007-03-29  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.c (s390_secondary_input_reload_class,
        s390_secondary_output_reload_class): Functions removed.
        (s390_secondary_reload): New function.
        (TARGET_SECONDARY_RELOAD): Target macro defined.
        * config/s390/s390.h (SECONDARY_INPUT_RELOAD_CLASS,
        SECONDARY_OUTPUT_RELOAD_CLASS): Macro definitions removed.
        * config/s390/s390.md ("reload_outti", "reload_outdi",
        "reload_indi", "reload_insi", "reload_out<mode>", "reload_in<mode>",
        "reload_out<mode>"): Expanders removed.
        ("reload<mode>_plus", "reload<mode>_nonoffmem_in",
        "reload<mode>_nonoffmem_out"): Expanders added.

2007-03-29  Andreas Krebbel  <krebbel1@de.ibm.com>

        * regmove.c (optimize_reg_copy_1): Don't perform DEST->SRC repair action if
        SRC->DEST replacement failed anyway.

2007-03-28  Mike Stump  <mrs@apple.com>

        * config/darwin9.h (ASM_OUTPUT_ALIGNED_COMMON): Add.
        * config/darwin.h (MAX_OFILE_ALIGNMENT): Fix.
        * config/rs6000/darwin.h (ASM_OUTPUT_ALIGNED_COMMON): Removed #undef.

2007-03-28  Dwarakanath Rajagopal  <dwarak.rajagopal@amd.com>

        * config.gcc: Accept barcelona as a variant of amdfam10.
        * config/i386/i386.c (override_options): Likewise.
        * doc/invoke.texi: Likewise.

2007-03-28  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-dfa.c (get_ref_base_and_extent): Do not expect positive
        offsets for BIT_FIELD_REF and COMPONENT_REF.

2007-03-28  Richard Guenther  <rguenther@suse.de>

        * tree.c (is_global_var): Move ...
        * tree-flow-inline.h (is_global_var): ... here.
        * tree.h (is_global_var): Remove declaration.

2007-03-28  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.h (X86_TUNE_PROMOTE_HIMODE_IMUL): New tuning
        option.
        (TARGET_TUNE_PROMOTE_HIMODE_IMUL): New define. Use new tuning option.
        * config/i386/i386.c (ix86_tune_features): Initialize new
        tuning option.
        * config/i386/predicates.md (promotable_binary_operator): Use
        TARGET_TUNE_PROMOTE_HIMODE_IMUL.

2007-03-28  Grigory Zagorodnev <grigory_zagorodnev@linux.intel.com>

        PR target/31380
        * config/i386/sse.md (uminv16qi3): Use UMIN instead of UMAX.

2007-03-28  Lars Poeschel <larsi@wh2.tu-dresden.de>

        * config/fr30/fr30.md (movsi_internal): Change destination
        constraint from m to V and add m to the end.

2007-03-28  Christian Bruel  <christian.bruel@st.com>

        * config/sh/sh.md (movsi_i): Fix type attribute.

2007-03-28  Christian Bruel  <christian.bruel@st.com>

        * config/sh/sh.md (movsi_ie): Fix memory constraints attribute length.
        (movsf_ie): Likewise.

2007-03-28  Christian Bruel  <christian.bruel@st.com>

        * config.gcc: Add sh4-300 to multilib.
        * config/sh/t-mlib-sh4-300: New file.

2007-03-28  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.md ("fix_trunc<mode>di2"): New expander.
        ("fix_trunc<DFP:mode>di2_dfp"): New insn definition renamed from
        fix_trunc<mode>di2.
        ("fixuns_truncdddi2", "fixuns_trunctddi2"): Use
        fix_trunc<DFP:mode>di2_dfp instead of fix_trunc<mode>di2.
        ("fix_truncdfsi2", "fix_truncsfsi2", "fixuns_truncdddi2",
        "fixuns_trunctddi2"): Whitespace fix.

2007-03-28  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/sh.h (CALL_COOKIE_RET_TRAMP_SHIFT): Move after
        the definition of struct sh_args.
        (CALL_COOKIE_RET_TRAMP, CALL_COOKIE_STACKSEQ_SHIFT,
        CALL_COOKIE_INT_REG_GET): Likewise.

2007-03-28  Steven Bosscher  <steven@gcc.gnu.org>

        * ifcvt.c (cond_exec_find_if_block): Return FALSE if no
        transformations are applied successfully.

2007-03-27  Douglas Gregor  <doug.gregor@gmail.com>

        * tree.c (tree_contains_struct): Permit 512 tree codes.
        * tree.h (tree_contains_struct): Ditto.
        (MAX_TREE_CODES): Ditto.
        (struct tree_base): Make CODE 16 bits, instead of 8 bits. Add
        SPARE member to store remaining padding bits.

2007-03-27  Anatoly Sokolov <aesok@post.ru>

        * config/avr/avr.c (avr_mcu_types): Move at90usb82 device to 'avr4'
        architecture.

2007-03-27  Janis Johnson  <janis187@us.ibm.com>

        * configure.ac: Fix assembler test for powerpc*-linux decimal float.
        * configure: Regenerate.

        * configure: Regenerate using the correct version of autoconf.

2007-03-27  Anatoly Sokolov  <aesok@post.ru>

        * config/avr/avr.c (avr_hard_regno_mode_ok): Disallow QImode in stack
        pointer regs.
        * config/avr/avr.h (REGISTER_NAMES): Rename "__SPL__" and "__SPH__"
        regs to "__SP_L__" and "__SP_H__".

2007-03-27  Richard Guenther  <rguenther@suse.de>

        * tree-dfa.c (get_ref_base_and_extent): Replace bit_offset and
        computations with it with a HOST_WIDE_INT variable.

2007-03-26  Mike Stump  <mrs@apple.com>

        * config/rs6000/darwin.h (DARWIN_MINVERSION_SPEC): Add
        objective-c-header, objective-c++-header and objc++-cpp-output
        support.
        * config/i386/darwin.h (DARWIN_MINVERSION_SPEC): Likewise.

2007-03-26  Richard Henderson  <rth@redhat.com>

        PR target/31361
        * config/i386/i386.c (IX86_BUILTIN_PSLLDQ128, IX86_BUILTIN_PSLLW128,
        IX86_BUILTIN_PSLLD128, IX86_BUILTIN_PSLLQ128, IX86_BUILTIN_PSRAW128,
        IX86_BUILTIN_PSRAD128, IX86_BUILTIN_PSRLW128, IX86_BUILTIN_PSRLD128,
        IX86_BUILTIN_PSRLQ128): New.
        (ix86_init_mmx_sse_builtins): Add them.
        (ix86_expand_builtin): Expand them.
        * config/i386/sse.md (ashr<mode>3, lshr<mode>3, ashl<mode>3): Make
        operand 2 be TImode.
        * config/i386/emmintrin.h (_mm_slli_epi64, _mm_srai_epi16,
        _mm_srai_epi32, _mm_srli_epi16, _mm_srli_epi32,
        _mm_srli_epi64): Mark __B const.
        (_mm_srli_si128, _mm_srli_si128): Fix disabled inline versions.
        (_mm_sll_epi16, _mm_sll_epi32, _mm_sll_epi64, _mm_sra_epi16,
        _mm_sra_epi32, _mm_srl_epi16, _mm_srl_epi32, _mm_srl_epi64): Use
        new two-vector shift builtins.

2007-03-26  Ian Lance Taylor  <iant@google.com>

        PR tree-optimization/31345
        * tree-vrp.c (extract_range_from_binary_expr): Turn ranges like
        [+INF, +INF(OVF)] into VARYING.

2007-03-26  Zack Weinberg  <zackw@panix.com>

        * gengtype-parse.c: New file.
        * gengtype-yacc.y: Delete.
        * gengtype-lex.l: Don't include gengtype-yacc.h.
        Define YY_DECL and yyterminate appropriately for recursive
        descent parser.  yylval is now a string out-parameter to yylex.
        (HWS, EOID): New shorthand.
        (IWORD): Add a couple more types.
        (yylex): Add a setup stanza.  Remove the complex rules for
        detecting GTY'ed types and typedefs; replace with simple
        keyword detectors.  Adjust everything for the changed
        definition of yylval.  Ignore all pp-directives, not just #define.
        (yyerror): Delete.
        (parse_file): Rename yybegin; do not call yyparse.
        (yyend): New.
        * gengtype.c (xasprintf): Export again.
        (this_file): New.  Use everywhere __FILE__ was being used.
        (get_lang_bitmap): Special case types defined in gengtype.c.
        (do_typedef, new_structure): Suppress definition of certain types.
        (new_structure): Improve diagnostics of duplicate definitions.
        Make sure location_s is associated with input.h.
        (nreverse_pairs, define_location_structures): New functions.
        (main): Improve tagging of kludge types.  Remove old kludges
        for input.h types; use define_location_structures.
        * gengtype.h: Update prototypes.  Define token codes here.
        * Makefile.in: Remove all references to gengtype-yacc.
        Add rules for gengtype-parse.o.  Adjust rules for gengtype-lex.o
        and gengtype.
        * bitmap.h (struct bitmap_head_def): Coalesce definitions,
        add GTY((skip)) to the field that's only conditionally there.
        * doc/install.texi: Document that Bison is no longer required
        unless building treelang.

        * gengtype.c: Don't include gtyp-gen.h.
        (srcdir): Declare here.
        (base_files, lang_dir_names): Allocate dynamically.
        (gt_files, num_gt_files, num_lang_dirs): New globals.
        (measure_input_list, read_input_line, read_input_list)
        (set_lang_bitmap): New functions.
        (get_base_file_bitmap): Rename get_lang_bitmap and drastically
        simplify, relying on read_input_list to set up the bitmaps.
        (main): Arguments are no longer unused.  Check for correct number
        of command line arguments, set srcdir and srcdir_len, then call
        read_input_list, before doing anything else.  No need to worry
        about duplicates in main loop.
        * configure.ac: Simplify the calculation of all_gtfiles.
        Put language tags in there.  Don't set or substitute
        all_gtfiles_files_langs or all_gtfiles_files_frags.
        * Makefile.in: Revamp the way gengtype is invoked, now that it
        takes a file on its command line with a much simpler format.
        Remove or replace with gtyp-input.list all references to gtyp-gen.h.
        (GTFILES): Remove duplicates and C source files.
        * c-config-lang.in, cp/config-lang.in, objc/config-lang.in
        * objcp/config-lang.in: Add c-pragma.h to gtfiles.
        * configure: Regenerate.

        * gengtype.h: Remove all type definitions to gengtype.c; leave
        only definitions of options_p, type_p, and pair_p as opaque
        pointers.  Update prototypes.
        * gengtype.c: Many type definitions moved here from gengtype.h.
        Consolidate type definitions at the top of the file.
        (xvasprintf): Delete.
        (xasprintf): Make static.
        (create_nested_pointer_option): Add 'next' parameter.
        (create_field_all, create_field_at): New functions.
        (create_field): Now a thin wrapper around create_field_all.
        (create_optional_field): Rename create_optional_field_ and add
        line argument.  Original name is now a macro which supplies
        __LINE__.
        (oprintf): Use vsnprintf directly.
        (close_output_files): Use fatal rather than perror/exit.
        (note_def_vec, note_def_vec_alloc): Use create_field_at.
        (main): Set progname.  Don't use exit.
        * gengtype-yacc.y (struct_fields): Use create_field_at.
        (option, optionseqopt): Delete.
        (optionseq): Consolidate productions from option here so we
        can use the first argument to create_option.

        * gengtype-lex.l: Distinguish unions from structures in the
        token type.  Don't call find_structure; return the tag as a string.
        * gengtype-yacc.y: Add new token types ENT_TYPEDEF_UNION and ENT_UNION.
        Type of these, ENT_TYPEDEF_STRUCT, and ENT_STRUCT is string.
        Reorganize typedef_struct production accordingly.
        Use create_nested_ptr_option.
        * gengtype.c (create_nested_ptr_option): New function.
        * gengtype.h: Declare it.

        * gengtype.h (struct type): Replace 'sc' with boolean, scalar_is_char.
        (string_type): Don't declare.
        (do_scalar_typedef): Declare.
        (create_scalar_type): Update prototype.
        * gengtype.c (string_type): Make static.
        (scalar_nonchar, scalar_char): New.
        (do_scalar_typedef): Export.  Always use scalar_nonchar for the type.
        (resolve_typedef): Use scalar_nonchar for error recovery.
        (create_scalar_type): Remove name_len field.  Return scalar_char
        or scalar_nonchar as appropriate.
        (adjust_field_type): Look at scalar_is_char boolean to decide whether
        to use string_type.
        (throughout): Use scalar_nonchar instead of calling create_scalar_type,
        whenever possible.
        (main): Initialize scalar_char and scalar_nonchar before calling
        gen_rtx_next.
        * gengtype-lex.l: Adjust for removal of second argument to
        create_scalar_type.  Use yylval.s instead of yylval.t when
        returning SCALAR.
        * gengtype-yacc.y: Type of SCALAR is string.  Call
        create_scalar_type from type:SCALAR rule.  Adjust for removal of
        second argument to create_scalar_type.

        * vec.h: Remove all #if IN_GENGTYPE blocks.
        Add comment saying that changes may require adjustments to gengtype.
        * gengtype.c: Don't include coretypes.h or tm.h.
        Add comment to inclusion of errors.h.
        (note_def_vec, note_def_vec_alloc): New functions.
        * gengtype.h: Declare new functions.
        * gengtype-lex.l: Don't include coretypes.h.
        (YY_INPUT, macro_input, push_macro_expansion, mangle_macro_name):
        Delete.
        (update_lineno): Remove unnecessary prototype.
        (DEF_VEC_* rules): Simplify using note_def_vec / note_def_vec_alloc.
        (VEC rule): Just return VEC_TOKEN.
        * gengtype-yacc.y (VEC_TOKEN): New token type.
        (type): Add a production for VEC(a,b).
        * Makefile.in: Update dependencies.

        * gengtype-lex.l: Remove rules for parsing pointer-to-function
        typedefs that use the old PARAMS macro.

        * gengtype-lex.l: Remove all rules and states relating to yacc
        input files.
        * gengtype-yacc.y: Similarly.
        * gengtype.c (note_yacc_type): Delete function.
        * gengtype.h: Update prototypes.

2007-03-26  Joseph Myers  <joseph@codesourcery.com>

        * tree-pretty-print.c (dump_generic_node): Report precision of
        unnamed integer types.

2007-03-26  Steven Bosscher  <steven@gcc.gnu.org>

        * ifcvt.c (noce_try_store_flag_constants): Don't check
        no_new_pseudos here.
        (noce_try_store_flag_constants): Don't check no_new_pseudos.
        (noce_try_addcc, noce_try_store_flag_mask, noce_try_cmove_arith,
        noce_try_cmove_arith, noce_try_minmax, noce_try_abs,
        noce_try_sign_mask): Likewise.
        (if_convert): Check no_new_pseudos here.

        (cond_exec_process_if_block, noce_process_if_block, find_if_block):
        Remove prototypes.
        (struct noce_if_info): Add then_bb, else_bb, join_bb members.
        (noce_get_condition): Handle new then_else_reversed argument.
        (noce_init_if_info): Remove, fold into noce_find_if_block.
        (noce_process_if_block): Take a struct noce_if_info as the
        argument.  Don't set up one based on ce_if_info.  Update pointer
        references accordingly.
        (cond_move_process_if_block): Likewise.
        (process_if_block): Removed.
        (find_if_block): Removed.  Move functionality two new functions,
        noce_find_if_block and cond_exec_find_if_block.
        (noce_find_if_block): New function.  Be aware of IF-THEN-JOIN
        blocks and the symmetric IF-ELSE-JOIN case.
        (cond_exec_find_if_block): Also new function mostly based on old
        find_if_block and process_if_block.
        (find_if_header): Replace find_if_block call with separately
        guarded calls to noce_find_if_block and cond_exec_find_if_block.
        (find_cond_trap): Update noce_get_condition call.
        (dead_or_predicable): Likewise.

2007-03-26  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/i386.c (IX86_BUILTIN_CMPNEPD, IX86_BUILTIN_CMPNESD):
        Remove.
        (IX86_BUILTIN_PSLLW128, IX86_BUILTIN_PSLLD128, IX86_BUILTIN_PSLLQ128,
        IX86_BUILTIN_PSRAW128, IX86_BUILTIN_PSRAD128, IX86_BUILTIN_PSRLW128,
        IX86_BUILTIN_PSRLD128, IX86_BUILTIN_PSRLQ128): Remove.
        (ix86_init_mmx_sse_builtins): Remove v8hi_ftype_v8hi_v2di and
        v4si_ftype_v4si_v2di.  Remove __builtin_ia32_psllw128,
        __builtin_ia32_pslld128, __builtin_ia32_psllq128,
        __builtin_ia32_psrlw128, __builtin_ia32_psrld128,
        __builtin_ia32_psrlq128, __builtin_ia32_psraw128 and
        __builtin_ia32_psrad128 builtins.

2007-03-26  Uros Bizjak  <ubizjak@gmail.com>

        * reg-stack.c (replace_reg): Use IN_RANGE macro in gcc_assert().
        * config/i386/constraints.md
        (define_constraint "I"): Use IN_RANGE macro.
        (define_constraint "J"): Ditto.
        (define_constraint "K"): Ditto.
        (define_constraint "M"): Ditto.
        (define_constraint "N"): Ditto.
        (define_constraint "O"): Ditto.
        * config/i386/predicates.md
        (define_predicate "register_no_elim_operand"): Use IN_RANGE macro.
        (define_predicate "const_0_to_3_operand"): Ditto.
        (define_predicate "const_0_to_7_operand"): Ditto.
        (define_predicate "const_0_to_15_operand"): Ditto.
        (define_predicate "const_0_to_63_operand"): Ditto.
        (define_predicate "const_0_to_255_operand"): Ditto.
        (define_predicate "const_1_to_31_operand"): Ditto.
        (define_predicate "const_2_to_3_operand"): Ditto.
        (define_predicate "const_4_to_7_operand"): Ditto.

2007-03-25  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/rs6000.c (rs6000_emit_prologue): Always clobber LR
        in SImode for save_world.
        * config/rs6000/altivec.md (save_world, restore_world): Convert to
        LR hard reg.

2007-03-25  Dorit Nuzman  <dorit@il.ibm.com>

        PR tree-optimization/30784
        * fold-const.c (fold_ternary): Handle CONSTRUCTOR in case
        BIT_FIELD_REF.

2007-03-25  Revital Eres  <eres@il.ibm.com>

        * tree-if-conv.c (if_convertible_gimple_modify_stmt_p):
          Fold movement_possibility function into it.

2007-03-25  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/darwin.md (load_macho_picbase): Ignore operand 0.
        (load_macho_picbase_{si,di}): Convert to LR hard reg.
        (call_indirect_nonlocal_darwin64): Same.
        (call_nonlocal_darwin64): Same.
        (call_value_indirect_nonlocal_darwin64): Same.
        (call_value_nonlocal_darwin64): Same.
        (sibcall_nonlocal_darwin64): Same.
        (sibcall_value_nonlocal_darwin64): Same.
        (sibcall_symbolic_64): Same.
        (sibcall_value_symbolic_64): Same.
        * config/rs6000/rs6000.c (rs6000_legitimize_tls_address): Remove
        LR pseudo.
        (rs6000_emit_load_toc_table): Same.
        * config/rs6000/altivec.md (restore_world): Convert to LR hard reg.
        * config/rs6000/rs6000.md (mulh_call): Convert to LR hard reg.
        (mull_call): Same.
        (divss_call): Same.
        (divus_call): Same.
        (quoss_call): Same.
        (quous_call): Same.
        (load_toc_v4_pic_si): Same
        (load_toc_v4_PIC_1): Same.
        (load_toc_v4_PIC_1b): Same.
        (call_indirect_aix{32,64}): Same.
        (call_value_indirect_aix{32,64}): Same.
        (call): Same.
        (call_value): Same.
        (call_local{32,64}): Same.
        (call_value_local{32,64}): Same.
        (call_indirect_nonlocal_aix{32,64}): Same.
        (call_nonlocal_aix{32,64}): Same.
        (call_value_indirect_nonlocal_aix{32,64}): Same.
        (call_value_nonlocal_aix{32,64}): Same.
        (call_indirect_nonlocal_sysv<mode>): Same.
        (call_nonlocal_sysv<mode>): Same.
        (call_value_indirect_nonlocal_sysv<mode>): Same.
        (call_value_nonlocal_sysv<mode>): Same.
        (sibcall): Same.
        (sibcall_local{32,64}): Same.
        (sibcall_value_local{32,64}): Same.
        (sibcall_nonlocal_aix{32,64}): Same.
        (sibcall_value_nonlocal_aix{32,64}): Same.
        (sibcall_nonlocal_sysv<mode>): Same.
        (sibcall_value): Same.
        (sibcall_value_nonlocal_sysv<mode>): Same.

2007-03-24  Paul Brook  <paul@codesourcery.com>

        * config/arm/lib1funcs.asm (div0): Use ARM_FUNC_START and do_push.
        * config/arm/linux-eabi.h: Remove legacy syscall hack.

2007-03-24  Richard Henderson  <rth@redhat.com>

        * config/ia64/constraints.md: New file.
        * config/ia64/predicates.md: Replace CONST_OK_FOR_? with
        satisfies_constraint_?.
        * config/ia64/ia64.c (ia64_move_ok, ia64_legitimate_constant_p,
        ia64_reload_gp, spill_restore_mem, ia64_expand_prologue,
        ia64_expand_epilogue, ia64_split_return_addr_rtx, ia64_rtx_costs,
        ia64_output_mi_thunk): Likewise.
        (ia64_const_ok_for_letter_p): Remove.
        (ia64_const_double_ok_for_letter_p): Remove.
        (ia64_extra_constraint): Remove.
        * config/ia64/ia64.h (REG_CLASS_FROM_LETTER): Remove.
        (CONST_OK_FOR_I, CONST_OK_FOR_J, CONST_OK_FOR_K, CONST_OK_FOR_L,
        CONST_OK_FOR_M, CONST_OK_FOR_N, CONST_OK_FOR_O, CONST_OK_FOR_P,
        CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_G,
        CONST_DOUBLE_OK_FOR_LETTER_P, EXTRA_CONSTRAINT,
        EXTRA_MEMORY_CONSTRAINT): Remove.
        * config/ia64/ia64.md: Include constriants.md.  Replace
        CONST_OK_FOR_? with satisfies_constraint_?.

2007-03-23  Michael Meissner  <michael.meissner@amd.com>
            H.J. Lu  <hongjiu.lu@intel.com>

        * config/dfp-bit.h (DPD_BID_NAME): New macro to give either the
        DPD or BID name.
        (name macros): Use DPD_BID_NAME to convert names properly.

        * optabs.c (DECIMAL_PREFIX): Prefix string to use for the current
        decimal floating point format.
        (init_floating_libfuncs): Change decimal functions so that they
        have a "bid_" prefix if the decimal system uses the BID format,
        and "dpd_" prefix if the decimal system uses the DPD format.
        (init_interclass_conv_libfuncs): Ditto.
        (init_intraclass_conv_libfuncs): Ditto.

        * config.in (ENABLE_DECIMAL_BID_FORMAT): New macro to say we are
        using the BID format.

        * configure.ac (ENABLE_DECIMAL_BID_FORMAT): Set to 1/0 to say
        whether we are using the BID decimal format.
        * configure: Regenerate.

        * c-cppbuiltin.c (c_cpp_builtins): Define __STDC_WANT_DEC_FP__ if
        the compiler has decimal floating point enabled.  Define
        __DECIMAL_BID_FORMAT__ if BID decimal floating point is used
        instead of DPD.

        * config.in (ENABLE_DECIMAL_BID_FORMAT): New macro to say we are
        using the BID format.

        * configure.ac (ENABLE_DECIMAL_BID_FORMAT): Set to 1/0 to say
        whether we are using the BID decimal format.
        * configure: Regenerate.

        * c-cppbuiltin.c (c_cpp_builtins): Define __STDC_WANT_DEC_FP__ if
        the compiler has decimal floating point enabled.  Define
        __DECIMAL_BID_FORMAT__ if BID decimal floating point is used
        instead of DPD.

        * doc/install.texi (--enable-decimal-float): Document BID and DPD
        options, and that it is enabled for i386/x86_64 systems.

        * Makefile.in (enable_decimal_float): New.
        (DECNUMFMT): New.
        (DECNUMINC): Add  -I$(DECNUMFMT).
        (DECNUM_H): Mov decimal32.h, decimal64.h and decimal128.h
        to $(DECNUMFMT) from $(DECNUM).

        * configure.ac: Support * --enable-decimal-float={no,yes,bid,dpd}.
        Substitute enable_decimal_float.
        * configure: Regenerated.

        PR other/30529
        * config/dfp-bit.c (__dec_byte_swap): Use uint32_t instead of
        unsigned long.

        * configure.ac: Enable decimal float for x86_64-*-linux*.
        * configure: Regenerated.

        PR other/30530
        * dfp.c (decimal_real_arithmetic): Use decimal128FlipSign and
        decimal128ClearSign to flip and clear the sign bit in decimal128.
        (decimal_real_maxval): Set decimal128SetSign to set the sign
        bit in decimal128.

2007-03-23  Ian Lance Taylor  <iant@google.com>

        * fold-const.c (fold_binary): Correct warning for X - c >= X.

2007-03-23  Ian Lance Taylor  <iant@google.com>

        * tree-dump.c (dump_files): Correct comment.

2007-03-23  Ian Lance Taylor  <iant@google.com>

        * tree-vrp.c (operand_less_p): Ignore fold overflow warnings.

2007-03-23  Steven Bosscher  <steven@gcc.gnu.org>

        * tracer.c (tracer): Don't take FLAGS argument.  Assert we are
        in cfglayout mode.  Don't go into and out of cfglayout mode.
        Link the blocks in the order of the constructed traces.
        (rest_of_handle_tracer): Adjust call to tracer.
        * loop-init.c (rtl_loop_init): Assert we are in cfglayout mode.
        Don't go into cfglayout mode.
        (rtl_loop_done): Don't go out of cfglayout mode.
        * cfglayout.c (relink_block_chain): New function, split out from...
        (fixup_reorder_chain): ...here.  Remove redundant checking.
        (cfg_layout_finalize): Don't clear the header, footer, and aux
        fields here, move the code to do so to relink_block_chain.  Likewise
        for free_original_copy_tables.
        * rtl.h (tracer): Update prototype.
        * bb-reorder.c (reorder_basic_blocks): Don't take FLAGS argument.
        Assert we are in cfglayout mode.  Don't go into and out of cfglayout
        mode.  Use relink_block_chain to serialize the CFG according to the
        new basic block order.  Move targetm.cannot_modify_jumps_p check from
        here...
        (gate_handle_reorder_blocks): ...to here.
        (duplicate_computed_gotos): Move targetm.cannot_modify_jumps_p check
        from here...
        (gate_duplicate_computed_gotos): ...to here.
        (rest_of_handle_reorder_blocks): Don't see if anything has changed,
        something always changes when going into and out of cfglayout mode.
        Perform an expensive cfg cleanup while going into cfglayout mode.
        Always update liveness information on HAVE_conditional_execution
        targets.  Reserialize the basic blocks and go out of cfglayout mode.
        * reg-stack.c: Include cfglayout.h.
        (rest_of_handle_stack_regs): Go into and out of cfglayout mode around
        the call to reorder_basic_blocks.
        * basic-block.h (reorder_basic_blocks): Update prototype.
        (relink_block_chain): New prototype.
        * passes.c (pass_outof_cfg_layout_mode): Move after cse2.

2007-03-23  Joseph Myers  <joseph@codesourcery.com>

        * config/mips/mips.md (type, hazard, *movdi_32bit,
        *movdi_gp32_fp64, *movdi_64bit, *movsi_internal, movcc,
        *movhi_internal, *movqi_internal, *movsf_hardfloat,
        *movdf_hardfloat_64bit, *movdf_hardfloat_32bit, *movdf_softfloat,
        movv2sf_hardfloat_64bit, load_df_low, load_df_high, store_df_high,
        mthc1, mfhc1): Change xfer instruction type to mfc and mtc, as
        applicable.
        (movcc): Change first xfer to multi.
        * config/mips/24k.md, config/mips/4100.md, config/mips/4300.md,
        config/mips/5000.md, config/mips/5400.md, config/mips/5500.md,
        config/mips/5k.md, config/mips/7000.md, config/mips/9000.md,
        config/mips/generic.md: Change reservations using "xfer" to use
        "mfc,mtc".
        * config/mips/sb1.md (ir_sb1_mtxfer): Use "mtc" instead of
        using match_operand.
        (ir_sb1_mfxfer): Use "mfc" instead of using match_operand.
        * config/mips/sr71k.md (ir_sr70_xfer_from): Use "mfc" instead of
        examining mode.
        (ir_sr70_xfer_to): Use "mtc" instead of examining mode.

2007-03-22  Richard Henderson  <rth@redhat.com>

        * config/i386/i386.c: Remove unnecessary function declarations.
        Move targetm definition, and all related macros, to the end of
        the file.  Resort some functions to put definitions before uses.
        (ix86_attribute_table): Make static.  Move to end of file.
        (ix86_gimplify_va_arg): Make static.

2007-03-22  Richard Henderson  <rth@redhat.com>

        * config/i386/i386.c (ix86_function_regparm): Early exit for 64-bit;
        don't increase local_regparm with force_align_arg_pointer check.
        (ix86_function_sseregparm): Assert 32-bit.
        (type_has_variadic_args_p): New.
        (ix86_return_pops_args): Early exit for 64-bit.  Reindent; use
        type_has_variadic_args_p.
        (ix86_function_arg_regno_p): Use == 0 instead of ! test for eax.
        (init_cumulative_args): Remove TARGET_DEBUG_ARG.  Remove zero_cum;
        use memset instead.  Do maybe_vaarg check first; skip attribute
        tests if true; skip attribute tests for 64-bit.
        (construct_container): Remove TARGET_DEBUG_ARG.
        (function_arg_advance_32, function_arg_advance_64): Split out ...
        (function_arg_advance): ... from here.
        (function_arg_32, function_arg_64): Split out ...
        (function_arg): ... from here.
        (ix86_pass_by_reference): Tidy.
        (ix86_function_value_regno_p): Rearrange w/ switch on regno.
        (function_value_32): New, from parts of ix86_function_value
        and ix86_value_regno.
        (function_value_64): New, from parts of ix86_function_value
        and ix86_libcall_value.
        (ix86_function_value_1): New.
        (ix86_function_value, ix86_libcall_value): Use it.
        (return_in_memory_32, return_in_memory_64): Split out ...
        (ix86_return_in_memory): ... from here.
        (ix86_struct_value_rtx): Skip for 64-bit.
        (ix86_libcall_value, ix86_value_regno): Remove.
        (setup_incoming_varargs_64): Split out ...
        (ix86_setup_incoming_varargs): ... from here.
        (ix86_va_start): Remove TARGET_DEBUG_ARG.
        (legitimate_address_p, legitimize_address): Remove TARGET_DEBUG_ADDR.
        * config/i386/i386-protos.h (ix86_function_value): Remove.
        * config/i386/i386.opt (TARGET_DEBUG_ADDR, TARGET_DEBUG_ARG): Remove.

2007-03-22  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR other/23572
        * c-lex.c (interpret_float): On overflow, emit pedantic warning if
        infinities not supported, otherwise emit warning if -Woverflow. On
        underflow, emit warning if -Woverflow.
        * real.c (real_from_string): Return -1 if underflow, +1 if overflow
        and 0 otherwise.
        * real.h (real_from_string): Update declaration

2007-03-22  Kai Tietz  <kai.tietz@onevision.com>
            Richard Henderson  <rth@redhat.com>

        * defaults.h (OUTGOING_REG_PARM_STACK_SPACE): Provide default.
        * calls.c (compute_argument_block_size, expand_call,
        emit_library_call_value_1): Don't ifdef OUTGOING_REG_PARM_STACK_SPACE.
        * expr.c (block_move_libcall_safe_for_call_parm): Likewise.
        * function.c (STACK_DYNAMIC_OFFSET): Likewise.
        * doc/tm.texi (OUTGOING_REG_PARM_STACK_SPACE): Update.
        * config/alpha/unicosmk.h, config/bfin/bfin.h, config/iq2000/iq2000.h,
        config/mips/mips.h, config/mn10300/mn10300.h, config/mt/mt.h,
        config/pa/pa.h, config/rs6000/rs6000.h, config/score/score.h,
        config/spu/spu.h, config/v850/v850.h (OUTGOING_REG_PARM_STACK_SPACE):
        Set to 1.

2007-03-22  Joseph Myers  <joseph@codesourcery.com>

        * c-incpath.c (add_sysroot_to_chain): New.
        (merge_include_chains): Add sysroot argument.  Call
        add_sysroot_to_chain if sysrooted.
        (register_include_chains): Update call to merge_include_chains.
        * doc/cppopts.texi: Document use of '=' in include directory
        arguments.

2007-03-22  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (cmp<mode>): Rename from cmpsf and cmpdf.
        Macroize expander using SSEMODEF mode macro.  Use SSE_FLOAT_MODE_P.
        (*cmpfp_<mode>): Rename from *cmpfp_sf and *cmpfp_df. Macroize
        insn pattern using X87MODEF12 mode macro.

2007-03-21  Seongbae Park <seongbae.park@gmail.com>

        * regmove.c (regmove_optimize): Use reg_mentioned_p
        instead of reg_overlap_mentioned_p for DST.

2007-03-21  Mike Stump  <mrs@apple.com>

        * c.opt: Fixup for Objective-C/C++.

2007-03-21  Steve Ellcey  <sje@cup.hp.com>

        * explow.c (convert_memory_address): Fold memory reference when
        POINTERS_EXTEND_UNSIGNED < 0

2007-03-21  Richard Henderson  <rth@redhat.com>

        PR target/31245
        * config/i386/emmintrin.h (__m128i, __m128d): Mark may_alias.
        * config/i386/mmintrin.h (__m64): Likewise.
        * config/i386/xmmintrin.h (__m128): Likewise.

2007-03-21  Richard Sandiford  <richard@codesourcery.com>

        * config/vxworks.h (VXWORKS_ADDITIONAL_CPP_SPEC): Remove -D options.
        (VXWORKS_OS_CPP_BUILTINS): Define.
        * config/i386/vxworks.h (VXWORKS_CPU_DEFINE): Fold into...
        (TARGET_OS_CPP_BUILTINS): ...here.  Use VXWORKS_OS_CPP_BUILTINS.

2007-03-21  Richard Sandiford  <richard@codesourcery.com>

        * rtl.h (constant_pool_reference_p): Delete.
        (find_constant_src): Declare.
        * rtlanal.c (find_constant_src): New function.
        * simplify-rtx.c (constant_pool_reference_p): Delete.
        * config/i386/i386.md: Use find_constant_src instead of
        constant_pool_reference_p/avoid_constant_pool_reference pairs.

2007-03-21  Richard Sandiford  <richard@codesourcery.com>

        * doc/invoke.texi (-fpie, -fPIE): Document __pie__ and __PIE__.
        * c-cppbuiltin.c (c_cpp_builtins): Define them.

2007-03-20  Mark Mitchell  <mark@codesourcery.com>

        * config/arm/elf.h (TARGET_ASM_DESTRUCTOR): Define.
        * config/arm/arm.c (arm_elf_asm_cdtor): New function.
        (arm_elf_asm_constructor): Use it.
        (arm_elf_asm_destructor): New function.

2007-03-20  Bernd Schmidt  <bernd.schmidt@analog.com>

        * jump.c (mark_jump_label): Treat SEQUENCE specially.

2007-03-20  Nathan Sidwell  <nathan@codesourcery.com>

        * config/vxlib.c (tls_delete_hook): Use TCB for kernel tasks.

2007-03-19  Andrew Haley  <aph@redhat.com>

        PR tree-optimization/31264
        * tree-vrp.c (register_edge_assert_for_1): Don't look though
        VIEW_CONVERT_EXPRs.

2007-03-19  Paolo Bonzini  <bonzini@gnu.org>

        PR rtl-optimization/30907
        * fwprop.c (forward_propagate_into): Never propagate inside a loop.
        (fwprop_init): Always call loop_optimizer_initialize.
        (fwprop_done): Always call loop_optimizer_finalize.
        (fwprop): We always have loop info now.
        (gate_fwprop_addr): Remove.
        (pass_fwprop_addr): Use gate_fwprop as gate.

        PR rtl-optimization/30841
        * df-problems.c (df_ru_local_compute, df_rd_local_compute,
        df_chain_alloc): Call df_reorganize_refs unconditionally.
        * df-scan.c (df_rescan_blocks, df_reorganize_refs): Change
        refs_organized to refs_organized_size.
        (df_ref_create_structure): Use refs_organized_size instead of
        bitmap_size if refs had been organized, and keep refs_organized_size
        up-to-date.
        * df.h (struct df_ref_info): Change refs_organized to
        refs_organized_size.
        (DF_DEFS_SIZE, DF_USES_SIZE): Use refs_organized_size instead of
        bitmap_size.

2007-03-19  Mark Mitchell  <mark@codesourcery.com>

        * except.c (output_function_exception_table): Do not reference the
        EH personality routine for functions that do not require an
        exception table.

2007-03-20  Jakub Jelinek  <jakub@redhat.com>

        PR c/30762
        * c-typeck.c (convert_for_assignment): Call comptypes for
        RECORD_TYPE or UNION_TYPE.

        PR inline-asm/30505
        * reload1.c (reload): Do invalid ASM checking after
        cleanup_subreg_operands.

2007-03-19  Jeff Law  <law@redhat.com>

        * tree-cfg.c (find_taken_edge): Tighten conditions for
        optimizing computed gotos.

2007-03-19  Michael Matz  <matz@suse.de>

        * builtins.c (expand_builtin_sync_operation,
        expand_builtin_compare_and_swap,
        expand_builtin_lock_test_and_set): Care for extending CONST_INTs
        correctly.

        * config/i386/sync.md (sync_double_compare_and_swapdi_pic,
        sync_double_compare_and_swap_ccdi_pic): Use "SD" as constraint
        for operand 3.

2007-03-19  Andreas Krebbel  <krebbel1@de.ibm.com>

        * doc/tm.texi: Add brackets around the return type of
        TARGET_SECONDARY_RELOAD.

2007-03-19  Andrew Pinski  <andrew_pinski@playstation.sony.com>
        Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/31254
        * tree-ssa-forwprop.c (forward_propagate_addr_expr_1):
        Use handled_component_p () where appropriate.  Continue
        propagating into the rhs if we propagated into an INDIRECT_REF
        on the lhs.

2007-03-19  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.md (op_type attribute): RRR instruction type added.
        (FP, DFP, SD_SF, DD_DF, TD_TF): New mode macros.
        (xde, xdee): Mode attributes adjusted to support DFP modes.
        (RRer, f0, op1, Rf, bt, bfp, HALF_TMODE): New mode attributes added.
        ("cmp<mode>", "*cmp<mode>_css_0", "*cmp<mode>_ccs", TF move splitters,
        DF move splitters, "floatdi<mode>2", "add<mode>3", "*add<mode>3",
        "*add<mode>3_cc", "*add<mode>3_cconly", "sub<mode>3", "*sub<mode>3",
        "*sub<mode>3_cc", "*sub<mode>3_cconly", "mul<mode>3", "*mul<mode>3",
        "div<mode>3", "*div<mode>3", "*neg<mode>2_nocc", "*abs<mode>2_nocc",
        "*negabs<mode>2_nocc", "copysign<mode>3"): Adjusted to support DFP
        numbers.
        ("*movtf_64", "*movtf_31", "*movdf_64dfp", "*movdf_64", "*movdf_31",
        "movsf"): Insn definitions removed.
        ("*mov<mode>_64", "*mov<mode>_31", "mov<mode>", "*mov<mode>_64dfp",
        "*mov<mode>_64", "*mov<mode>_31", "fix_trunc<DFP:mode>di2",
        "trunctddd2", "truncddsd2", "extendddtd2", "extendsddd2"): Insn
        definitions added.
        ("fixuns_truncdddi2", "fixuns_trunctddi2", "mov<mode>",
        "reload_in<mode>", "reload_out<mode>"): Expander added.
        ("movtf", "movdf", "reload_outtf", "reload_outdf", "reload_intf"):
        Expander removed.

2007-03-19  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.md: Only non-functional changes.  Renamed
        FPR mode macro to BFP all over the file.

2007-03-19  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.md (UNSPEC_COPYSIGN): New constant.
        (op_type attribute): RRF instruction type added.
        (fT0): New mode attribute.
        ("*movdi_64dfp", "*movdf_64dfp", "*neg<mode>2_nocc", "*abs<mode>2_nocc",
        "*negabs<mode>2_nocc", "copysign<mode>3"): Insn definitions added.
        * config/s390/s390.h (SECONDARY_MEMORY_NEEDED): Due to a new instruction
        no secondary memory is needed when moving DFmode values between GPRs
        and FPRs.

2007-03-19  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.opt ("mhard-float", "msoft-float"): Bit value
        inverted and documentation adjusted.
        ("mhard-dfp", "msoft-dfp"): New options.
        * config/s390/s390.c (s390_handle_arch_option): New architecture
        switch: z9-ec.
        (override_options): Sanity checks for the new options added.
        * config.gcc: New architecture switch: z9-ec.
        * config/s390/s390.h (processor_flags): PF_DFP added.
        (TARGET_CPU_DFP, TARGET_DFP): Macro definitions added.
        (TARGET_DEFAULT): Due to the s390.opt changes hard float is enabled
        when the bit is NOT set so remove it from the defaults.

2007-03-19  Andreas Krebbel  <krebbel1@de.ibm.com>

        * genemit.c (main): Print include statement for dfp.h.
        * dfp.h (decimal_real_arithmetic): Hide prototype if tree_code enum
        is not available.

2007-03-19  Hans-Peter Nilsson  <hp@axis.com>

        * config/cris/t-elfmulti (EXTRA_MULTILIB_PARTS): Do not define here.

2007-03-19  Kaz Kojima  <kkojima@gcc.gnu.org>

        PR target/31022
        * config/sh/sh.c (sh_adjust_cost): Use the result of single_set
        instead of PATTERN.

2007-03-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa.c (output_deferred_plabels, output_bb, output_millicode_call,
        attr_length_call, output_call, output_indirect_call): Cleanup
        formatting of targetm calls.

2007-03-19  Hans-Peter Nilsson  <hp@axis.com>

        * config/cris/cris.h (HANDLE_PRAGMA_PACK_PUSH_POP): Define to 1.

2007-03-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa.md: Add fpstore_load and store_fpload instruction types.  Provide
        reservation, bypass and anti-bypass descriptions for these instructions.
        Update move patterns.
        * pa.c (hppa_fpstore_bypass_p): Check for both TYPE_FPSTORE_LOAD and
        TYPE_FPSTORE.

2007-03-18  Dorit Nuzman  <dorit@il.ibm.com>

        * tree-vect-transform.c (get_initial_def_for_induction): Replace
        GET_MODE_NUNITS with TYPE_VECTOR_SUBPARTS.
        (get_initial_def_for_reduction): Likewise.

2007-03-16  Daniel Berlin  <dberlin@dberlin.org>

        Fix PR tree-optimization/29922
        * tree-ssa-pre.c (bb_bitmap_sets): Remove RVUSE_* members.
        (get_representative): Removed.
        (value_dies_in_block_x): Update for rvuse removal.
        (valid_in_sets): Update for renaming of vuses_dies_in_block_x.
        (compute_antic_aux): Handle when PHI nodes appear in
        non-single-successors.
        (dump_bitmap_of_names): Removed.
        (compute_antic_safe): Renamed and removed rvuse calculation.
        Calculate only antic safe.
        (insert_into_preds_of_block): Remove assert.
        (execute_pre): Update for renamed functions.
        (defer_or_phi_translate_block): New function.

2007-03-17  Kazu Hirata  <kazu@codesourcery.com>

        * config/arm/arm.c, config/arm/thumb2.md, config/m68k/m68k.c,
        config/spu/spu.c, omega.h, passes.c, predict.c: Fix comment
        typos.
        * doc/cpp.texi, doc/extend.texi, doc/invoke.texi: Fix typos.
        Follow spelling conventions.

        * tree-data-ref.h: Remove the prototype for analyze_array.

2007-03-17  Dorit Nuzman  <dorit@il.ibm.com>

        PR tree-optimization/31041
        * tree-vect-transform.c (get_initial_def_for_induction): Call
        force_gimple_operand.

2007-03-17  Olga Golovanevsky  <olga@il.ibm.com>

        * ipa-type-escape.c (look_for_casts) : Revert code to use
        handled_component_p due to ada test a-numaux.adb.

2007-03-17  Kazu Hirata  <kazu@codesourcery.com>

        * final.c (final_scan_insn): Alter the condition of a
        conditional trap if we have nonstandard CC.

2007-03-16  Alexandre Oliva  <aoliva@redhat.com>

        * configure.ac: Remove excess quoting from asm line 0 test.
        * configure: Rebuilt.

2007-03-16  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * doc/invoke.texi (-Wconversion): Document warnings specific to C++.
        * c-common.c (convert_and_check): Move warning logic to...
        (warnings_for_convert_and_check): ...here. Define.
        * c-common.h (warnings_for_convert_and_check): Declare.

2007-03-16  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa.c (attr_length_call): Partially revert change of 2007-03-09.
        (output_call): Likewise.

2007-03-16  Richard Sandiford  <richard@codesourcery.com>

        * config/vxworks.h (SUPPORTS_INIT_PRIORITY): Define.

2007-03-16  Richard Sandiford  <richard@codesourcery.com>

        * config/vx-common.h (WINT_TYPE, WINT_TYPE_SIZE): Define.

2007-03-16  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (override_options): Add PTA_NO_SAHF to k8,
        opteron, athlon-64 and athlon-fx processor_alias_table entries.

2007-03-16  Sebastian Pop  <sebastian.pop@inria.fr>

        PR tree-optimization/31183
        * tree-loop-linear.c (gather_interchange_stats, try_interchange_loops):
        Use double_int instead of unsigned int for representing access_strides.
        * testsuite/gcc.dg/tree-ssa/pr31183.c: New.

2007-03-16  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/31146
        * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Restructure
        to allow recursion of forward_propagate_addr_expr.
        (forward_propagate_addr_into_variable_array_index): Likewise.
        (forward_propagate_addr_expr): Likewise.
        (tree_ssa_forward_propagate_single_use_vars): Likewise.
        (forward_propagate_addr_expr_1): Recurse on simple copies
        instead of propagating into them.  Do so for useless conversions
        as well.
        (forward_propagate_addr_expr): Clean up unused statements after
        recursion.

2007-03-16  Richard Guenther  <rguenther@suse.de>

        * builtins.c (expand_builtin_cexpi): Use the right argument
        for the expansion via cexp.

2007-03-16  Alexandre Oliva  <aoliva@redhat.com>

        * configure.ac: Don't require ELF binutils to tolerate # 0 "".
        * configure: Rebuilt.

2007-03-16  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/29906
        * dwarf2out.c (force_type_die): Adjust comment.
        (dwarf2out_imported_module_or_decl): Handle base AT_import types.

2007-03-15  DJ Delorie  <dj@redhat.com>

        * config/frv/predicates.md (minmax_operator): Don't check operands
        here.

2007-03-15  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-ssa-loop-niter.c (record_estimate): Add "upper" argument.
        Update constant estimates of number of iterations.
        (record_nonwrapping_iv): Add "upper" argument.  "data_size_bounds_p"
        argument renamed to "realistic".
        (compute_estimated_nb_iterations): Removed.
        (record_niter_bound): New function.
        (idx_infer_loop_bounds): For possible but unlikely tail arrays,
        call record_nonwrapping_iv with upper = false.
        (infer_loop_bounds_from_signedness): Pass upper argument to
        record_nonwrapping_iv.
        (estimate_numbers_of_iterations_loop): Do not call
        compute_estimated_nb_iterations.  Record estimate based on profile
        information.  Initialize the constant estimates of number of
        iterations.
        * tree-data-ref.c (estimated_loop_iterations): Return the recorded
        estimates.
        * tree-ssa-loop-prefetch.c (loop_prefetch_arrays): Add dump when
        number of iterations is too small.
        * cfgloop.h (struct nb_iter_bound): Remove "realistic" field.
        (EST_NOT_AVAILABLE): Removed.
        (struct loop): Replace estimated_nb_iterations by any_upper_bound,
        nb_iterations_upper_bound, any_estimate and nb_iterations_estimate
        fields.

2007-03-15  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-ssa-loop-niter.c (refine_bounds_using_guard, bound_difference):
        Handle NE_EXPR guards.

2007-03-15  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR c++/24924
        * c-opts.c (c_common_post_options): Handle C++ post-processing here.
        Set also -pedantic-errors by default for the  preprocessor unless
        -fpermissive is given.

2007-03-15  Richard Guenther  <rguenther@suse.de>

        PR middle-end/29719
        PR middle-end/31161
        * builtins.c (expand_builtin_cexpi): As a fallback if we
        don't have builtins for sincos or cexp create a function
        declaration for cexp and expand to a call to that.
        (expand_builtin_int_roundingfn): Always fall
        back to floor/ceil and its variants even if they may be
        not available.

2007-03-15  Steven Bosscher  <steven@gcc.gnu.org>

        PR middle-end/31159
        * cfglayout.c (fixup_reorder_chain): Postpone deleting dead
        jump tables, move the call to delete_dead_jumptables from here...
        (cfg_layout_finalize): ...to here.  But rebuild jump labels first.
        * cfgrtl.c (cfg_layout_can_merge_blocks_p): When not optimizing,
        don't allow merging of blocks that try_redirect_by_replacing_jump
        also does not handle when not optimizing.

2007-03-15  Uros Bizjak  <ubizjak@gmail.com>
            Francois-Xavier Coudert  <coudert@clipper.ens.fr>

        * config/i386/i386.md (x86_sahf_1): Correctly handle
        HAVE_AS_IX86_SAHF.

2007-03-15  Uros Bizjak  <ubizjak@gmail.com>

        PR target/31167
        * config/i386/i386.md (*addti3_1, *addti3_1 splitter): Use
        x86_64_general_operand as operand[2] predicate.  Remove "iF"
        from operand constraints and use "e" constraint instead.
        (*subti3_1, *subti3_1 splitter): Ditto.
        (*negti2_1, *negti2_1 splitter): Use nonimmediate_operand as
        operand[1] predicate.

2007-03-14  Sebastian Pop  <sebastian.pop@inria.fr>

        * tree-loop-linear.c (gather_interchange_stats): For multidimensional
        arrays, multiply the access strides by the size of the sub-array.
        * testsuite/gcc.dg/tree-ssa/ltrans-5.c: New.

2007-03-14  Uros Bizjak  <ubizjak@gmail.com>

        * configure.ac (HAVE_AS_IX86_SAHF): On x86 targets check whether
        the configured assembler supports the sahf mnemonic.
        * configure: Regenerate.
        * config.in: Regenerate.

        * config/i386/i386.md (x86_sahf_1): Depending on HAVE_AS_IX86_SAHF,
        emit "sahf" or ".byte\t0x9e" as asm template.

2007-03-14  Michael Meissner  <michael.meissner@amd.com>

        PR 31018
        * config/i386/i386.h (X86_TUNE_SHORTEN_X87_SSE): New tuning
        option to replace hard coded TARGET_xxx in md file.
        (X86_TUNE_AVOID_VECTOR_DECODE): Ditto.
        (X86_TUNE_SLOW_IMUL_IMM32_MEM): Ditto.
        (X86_TUNE_SLOW_IMUL_IMM8): Ditto.
        (X86_TUNE_MOVE_M1_VIA_OR): Ditto.
        (X86_TUNE_NOT_UNPAIRABLE): Ditto.
        (X86_TUNE_NOT_VECTORMODE): Ditto.
        (TUNE_SHORTEN_X87_SSE): Use new tuning option.
        (TUNE_AVOID_VECTOR_DECODE): Ditto.
        (TUNE_SLOW_IMUL_IMM32_MEM): Ditto.
        (TUNE_SLOW_IMUL_IMM8): Ditto.
        (TUNE_MOVE_M1_VIA_OR): Ditto.
        (TUNE_NOT_UNPAIRABLE): Ditto.
        (TUNE_NOT_VECTORMODE): Ditto.

        * config/i386/i386.c (ix86_tune_features): Fill in new tuning
        options.

        * config/i386/i386.md (fix_trunc?f?1_sse peephole2): Use new
        tuning options instead of hard coded TARGET_xxx.
        (fix ssemode peephole2's): Ditto.
        (imul peephole2's): Ditto.
        (movsi_or): Ditto.
        (movdi_or_rex64): Ditto.
        (move peephole2): Ditto.
        (not peephole2's): Ditto.

2007-03-14  Dirk Mueller  <dmueller@suse.de>

        * c-common.h (empty_body_warning): Rename to empty_if_body_warning.
        * c-common.c (empty_if_body_warning): Rephrase diagnostic message.
        * c-parser.c (c_parser_if_body): Always add an empty statement in case
        of empty body.
        * c-parser.c (c_parser_do_statement): Warn about empty body in
        do/while statement.
        * c-typeck (c_finish_if_stmt): Call empty_if_body_warning.
        * doc/invoke.texi (-Wempty-body): Update documentation.

2007-03-14  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR c/21438
        * c-common.h (warn_for_div_by_zero): Declare.
        * c-common.c (warn_for_div_by_zero): Define.
        * c-typeck.c (build_binary_op): Call warn_for_div_zero instead of
        warning.

2007-03-14  Richard Sandiford  <richard@codesourcery.com>

        * Makefile.in (PREPROCESSOR_DEFINES): Add directory terminators
        to PREFIX and STANDARD_PREFIX.

2007-03-14  Richard Sandiford  <richard@codesourcery.com>
            Phil Edwards  <phil@codesourcery.com>

        * gthr-vxworks.h: Add an extern "C" wrapper for C++.
        (__gthread_once_t): Remove busy field for RTPs.
        (__GTHREAD_ONCE_INIT): Update accordingly.

2007-03-14  Richard Sandiford  <richard@codesourcery.com>

        * doc/invoke.texi: Document VxWorks options.

2007-03-14  Uros Bizjak  <ubizjak@gmail.com>

        * doc/invoke.texi (i386 and x86-64 Options): Clarify -msahf option.

2007-03-13  Seongbae Park <seongbae.park@gmail.com>

        PR tree-optimization/30590
        * tree-nrv.c (tree_nrv): Check for the partial update of the
        return value.

2007-03-13  Alexandre Oliva  <aoliva@redhat.com>

        * flags.h (flag_random_seed): Remove declaration, in favor of...
        * toplev.h (get_random_seed, set_random_seed): ... these.
        * tree.c (get_file_function_name): Use the former.
        * opts.c (common_handle_option): Use the latter.
        * toplev.c

2007-03-13  Steven Bosscher  <steven@gcc.gnu.org>

        PR middle-end/31127
        * cse.c (cse_find_path): Do not bail out if a basic block that
        we already visited now becomes part of a path that starts at a
        different basic block.  Just disallow this, to make sure we
        visit each basic block at most once.

2007-03-13  Jan Hubicka  <jh@suse.cz>

        * ipa-inline.c (cgraph_maybe_hot_edge_p): Look for hot/cold attributes,
        when profile esitmate is present, calls with very low frequency are
        cold.

2007-03-13  Zdenek Dvorak  <dvorakz@suse.cz>

        PR tree-optimization/30730
        PR tree-optimization/26900
        * tree-ssa-loop-niter.c: Include gmp.h.
        (bounds): New type.
        (mpz_set_double_int, get_type_bounds, mpz_to_double_int,
        split_to_var_and_offset, determine_value_range,
        bound_difference_of_offsetted_base, refine_bounds_using_guard,
        bound_difference, bounds_add, bounds_negate,
        number_of_iterations_ne_max, dump_affine_iv): New functions.
        (number_of_iterations_ne, number_of_iterations_lt_to_ne,
        assert_loop_rolls_lt, assert_loop_rolls_le): Use bounds on the
        difference of initial and final value of control iv to validate
        results.
        (number_of_iterations_cond): Add loop parameter.  Determine bounds
        on the difference of the extremes of the control iv.  Add dumps.
        (expand_simple_operations): Handle phi nodes.
        (simplify_using_initial_conditions): Do not record used conditions.
        (number_of_iterations_exit): Pass loop to number_of_iterations_cond.
        Do not set additional_info.
        (implies_nonnegative_p, implies_ge_p): Removed.
        (derive_constant_upper_bound): Do not use parameter `additional'.
        (record_estimate): Parameter `additional' removed.  Parameter
        `i_bound' added.  Do not call derive_constant_upper_bound.
        (record_nonwrapping_iv): Use derive_constant_upper_bound to
        bound the number of iterations estimate.
        (estimate_numbers_of_iterations_loop): Pass the estimate from
        the number of iterations analysis to record_estimate.
        * tree.h (multiple_of_p): Declare.
        * tree-scalar-evolution.c (expression_expensive_p): Removed.
        (scev_const_prop): Do not check expression_expensive_p.
        * fold-const.c (multiple_of_p): Exported.
        * double-int.c (double_int_mask): Exported.
        * double-int.h (double_int_mask): Declare.
        * tree-flow.h (struct tree_niter_desc): Removed additional_info
        field.  Added max field.

2007-03-13  David Taylor  <taylor@candd.org>

        PR driver/12448:
        * gcc.c (cpp_unique_options): If -MT or -MQ is seen, don't pass
        default -MQ.

2007-03-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR target/31123
        * pa.md (vdepi_ior): Don't allow zero length deposit.  Likewise for
        two unamed patterns.

2007-03-13  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.opt (mcx16, msahf): New options.
        * config/i386/i386.c (x86_cmpxchg16b, x86_sahf): Remove.
        (ix86_tune_features) [X86_TUNE_USE_SAHF]: Enable for m_GENERIC.

        * config/i386/driver-i386.c (bit_LAHF_LM): New define.
        (host_detect_local_cpu): Detect cx16 and lahf_lm cpuid bits.
        Output -mcx16 and -msahf options when corresponding bit is set.

        * doc/invoke.texi (i386 and x86-64 Options): Document -mcx16
        and -msahf options.

2007-03-13  Alexandre Oliva  <aoliva@redhat.com>

        * configure.ac: Test for assembler tolerance to # 0 "".
        * configure, config.in: Rebuilt.
        * final.c (final_scan_insn): Emit it if HAVE_AS_LINE_ZERO.

2007-03-13  Geoffrey Keating  <geoffk@apple.com>

        * doc/invoke.texi (Spec Files): Update for '%{,' spec.

        * config/rs6000/darwin-fallback.c: Compile file only on powerpc.
        (handle_syscall): Handle direct system calls.
        * config/rs6000/darwin.h (HAS_MD_FALLBACK_FRAME_STATE_FOR): Delete.

2007-03-12  Brooks Moses  <brooks.moses@codesourcery.com>

        * doc/invoke.texi: Fix cpp.info cross-reference.
        * doc/passes.texi: Fix gcc.info cross-reference.

2007-03-12  Zdenek Dvorak  <dvorakz@suse.cz>

        PR tree-optimization/30835
        * lambda-code.c (can_convert_to_perfect_nest): Check whether
        bb_for_stmt is not NULL before accessing it.

2007-03-12  Joseph Myers  <joseph@codesourcery.com>

        * gcc.c (main): Handle target_sysroot_hdrs_suffix being NULL for
        some multilibs.

2007-03-12  Brooks Moses  <brooks.moses@codesourcery.com>

        PR 30635
        * doc/install.texi: Document --enable-stage1-languages

2007-03-12  Steven Bosscher  <steven@gcc.gnu.org>

        * tree-pass.h (pass_into_cfg_layout_mode,
        pass_outof_cfg_layout_mode): Declare.
        * cfglayout.c (into_cfg_layout_mode, outof_cfg_layout_mode,
        pass_into_cfg_layout_mode, pass_outof_cfg_layout_mode): New.
        * passes.c (pass_into_cfg_layout_mode): Schedule before jump2.
        (pass_outof_cfg_layout_mode): Schedule after pass_rtl_ifcvt.

2007-03-12  Seongbae Park <seongbae.park@gmail.com>

        * c-decl.c (warn_variable_length_array): New function.
        Refactored from grokdeclarator to handle warn_vla
        and handle unnamed array case.
        (grokdeclarator): Refactored VLA warning case.
        * c.opt (Wvla): New flag.
        * doc/invoke.texi (Wvla): New warning.

2007-03-12  Richard Henderson  <rth@redhat.com>

        * config/alpha/alpha.c (alpha_elf_section_type_flags): New.
        (TARGET_SECTION_TYPE_FLAGS): New.

2007-03-12  Richard Henderson  <rth@redhat.com>

        * config/darwin.c (machopic_reloc_rw_mask): New.
        * config/darwin-protos.h (machopic_reloc_rw_mask): Declare.
        * config/darwin.h (TARGET_ASM_RELOC_RW_MASK): New.

2007-03-12  Mark Mitchell  <mark@codesourcery.com>

        * cppdefault.c (cpp_EXEC_PREFIX): New variable.
        * cppdefault.h (cpp_PREFIX): Document.
        (cpp_PREFIX_len): Likewise.
        (cpp_EXEC_PREFIX): New variable.
        * Makefile.in (PREPROCESSOR_DEFINES): Add STANDARD_EXEC_PREFIX.
        * c-incpath.c (add_standard_paths): Correct logic for relocating
        paths within prefix.

2007-03-12  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (fixuns_trunc<mode>hi2): Implement from
        fixuns_truncsfhi2 and fixuns_truncdfhi2 using SSEMODEF
        mode macro.
        (fix_trunc<mode>di_sse): Implement from fix_truncsfdi_sse and
        fix_truncdfdi_sse using SSEMODEF mode macro.
        (fix_trunc<mode>si_sse): Implement from fix_truncsfsi_sse and
        fix_truncdfsi_sse using SSEMODEF mode macro.
        (fix_trunc?f?i_sse peephole2): Implement using SSEMODEF mode macro.
        (fix_trunc?f?i_sse K8 peephole2): Fix register constraint.

2007-03-12  Richard Sandiford  <richard@codesourcery.com>

        * config.gcc (i[4567]86-wrs-vxworks, i[4567]86-wrs-vxworksae): Add
        elfos.h to tm_file.

2007-03-12  Olga Golovanevsky  <olga@il.ibm.com>

        * tree.h : Add multiple_of_p declaration.
        * fold-const.c (multiple_of_p): Make multiple_of_p public.
        * ipa-type-escape.c (results_of_malloc): Redundant.
        (visited_stmts): New. Visited stmt for walk_use_def_chains.
        (cast_type): Extended with new members.
        (check_cast): Returns cast_type.
        (cast): New structure for data of walk_use_def_chains.
        (is_malloc_result, is_cast_from_non_pointer_1,
        is_cast_from_non_pointer,
        is_array_access_through_pointer_and_index): New functions.
        (look_for_casts): Returns cast types.
        (check_call): Returns void.
        (okay_pointer_operation): Use support of pointer plus index,
        pointer plus constant and allow all multiplications.

2007-03-11  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/31115
        * tree-vrp.c (extract_range_from_binary_expr): Make sure
        the shift count is positive and non-anti-range for RSHIFT_EXPR.
        A shift count of zero is not special as with *_DIV_EXPR.
        (vrp_int_const_binop): Handle RSHIFT_EXPR for determining overflow
        direction.

2007-03-11  Ian Lance Taylor  <iant@google.com>

        * tree-vrp.c (vrp_int_const_binop): Handle PLUS_EXPR and
        the *_DIV_EXPR codes correctly with overflow infinities.

2007-03-11  Ira Rosen  <irar@il.ibm.com>

        * tree-data-ref.c (analyze_offset): Add a return value (bool) to
        indicate success/failure of the analysis. Add negation to subtrahend
        in case of subtraction. Fail if both operands contain constants.
        (create_data_ref): Fail if analyze_offset fails.

2007-03-11  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (frndintxf2): Rename to ...
        (rintxf2): ... this. Remove expander having same name.
        (rintsf2, rintdf2): Implement using SSEMODEF macro.
        (roundsf2, rounddf2): Ditto.
        (lrint<mode>di2, lrint<mode>si2): Implement using SSEMODEI24 macro.
        (lround<mode>di2, lround<mode>si2): Ditto.

2007-03-11  Steven Bosscher  <steven@gcc.gnu.org>

        * lower-subreg.c: Include except.h.
        (decompose_multiword_subregs): Verify that the only control flow
        insns we can split are loads to multi-words pseudos.
        Handle breaking such blocks after splitting, instead of calling
        find_many_sub_basic_blocks.

        * loop-unroll.c (split_edge_and_insert): Don't set BB_SUPERBLOCK
        on the new basic block.  Add a lengthy comment explaining why we
        thought this was necessary.
        * cfglayout.c (cfg_layout_finalize): Don't break superblocks.

2007-03-10  Mark Mitchell  <mark@codesourcery.com>

        PR c++/30924
        * tree.c (walk_type_fields): Recurse into the element type of
        ARRAY_TYPEs if there is a pointer set.

2007-03-10  Dirk Mueller  <dmueller@suse.de>

        * c-common.c (warn_logical_operator): Fix condition.

2007-03-10  Tobias Schlüter  <tobi@gcc.gnu.org>

        * config/i386/darwin.h (DARWIN_MINVERSION_SPEC): Add missing
        quotation mark.
        * config/darwin.c (machopic_select_section): Remove superfluous
        argument in call to categorize_decl_for_section.  Remove unused
        variable shlib.

2007-03-10  Joseph Myers  <joseph@codesourcery.com>

        * configure.ac (glibc_header_dir): Set using with_build_sysroot if
        defined.
        * configure: Regenerate.

2007-03-10  Uros Bizjak  <ubizjak@gmail.com>

        PR target/31101
        * config/i386/i386.md (UNSPEC_C2_FLAG): New constant.
        (fpremxf4_i387, fprem1xf4_i387): Use UNSPEC_C2_FLAG.
        (fmodxf3, fmod<mode>3, remainderxf3, remainder<mode>3):
        Add LABEL_NUSES to emitted label.
        * config/i386/i386.c (ix86_emit_fp_unordered_jump): Add
        branch probability value to emitted jump insn.
        * reg-stack.c (subst_stack_regs_pat)[UNSPEC]: Handle UNSPEC_C2_FLAG.
        Do not check life information and do not re-arrange input operands
        for UNSPEC_FSCALE_EXP, UNSPEC_FPREM_U and UNSPEC_FPREM1_U.

2007-03-10  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/sh.c (sh_insn_length_adjustment): Adjust for
        the change of decode_asm_operands.

2007-03-10  Kaz Kojima  <kkojima@gcc.gnu.org>

        * mode-switching.c (create_pre_exit): Skip blockage insn.

2007-03-09  Diego Novillo  <dnovillo@redhat.com>

        * tree-pass.h (TODO_update_smt_usage): Remove.
        Update all users.
        * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Remove
        argument SOME.
        Update all users.

2007-03-09  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa.c (attr_length_call): Revise condition for long pc-relative branch.
        (output_call): Use "LONG_PIC_SDIFF" instruction sequence for long local
        calls on the SOM target.  Don't use "LONG_PIC_PCREL" call sequence on
        SOM target.

2007-03-09  Geoffrey Keating  <geoffk@apple.com>

        * gcc.c: Document %{, in big comment at top.
        (input_suffix_matches): Remove special handling for .s and
        .S.
        (input_spec_matches): New.
        (handle_braces): Handle %{,.
        (validate_switches): ',' indicates a value which is not a switch.
        * config/alpha/osf.h (ASM_FINAL_SPEC): Use %{, rather than %{.
        to detect assembler input.
        * config/i386/sol2.h (CPP_SPEC): Likewise.
        * config/rs6000/sysv4.h (ASM_SPEC): Likewise.
        * config/rs6000/vxworks.h (ASM_SPEC): Likewise.
        * config/rs6000/lynx.h (ASM_SPEC): Likewise.
        * config/rs6000/linux64.h (ASM_SPEC_COMMON): Likewise.
        * config/i386/darwin.h (DARWIN_MINVERSION_SPEC): Objective-C plus
        -m64 causes deployment target to default to 10.5.
        * config/rs6000/darwin.h (DARWIN_MINVERSION_SPEC): Likewise.

2007-03-09  Richard Henderson  <rth@redhat.com>

        PR target/26090
        * target.h (targetm.asm.out.reloc_rw_mask): New.
        * target-def.h (TARGET_ASM_RELOC_RW_MASK): New.
        (TARGET_ASM_OUT): Use it.
        * targhooks.c, targhooks.h (default_reloc_rw_mask): New.
        * varasm.c (categorize_decl_for_section): Remove shlib argument;
        use the new reloc_rw_mask target hook instead.
        (default_section_type_flags_1): Merge into...
        (default_section_type_flags): ... here.
        (decl_readonly_section_1): Merge into...
        (decl_readonly_section): ... here.
        (default_elf_select_section_1): Merge into...
        (default_elf_select_section): ... here.
        (default_unique_section_1): Merge into...
        (default_unique_section): ... here.
        (compute_reloc_for_rtx_1, compute_reloc_for_rtx): New.
        (default_select_rtx_section): Use it.
        (default_elf_select_rtx_section): Likewise.
        * output.h: Update to match.
        * doc/tm.texi (TARGET_ASM_RELOC_RW_MASK): New.
        * config/alpha/alpha.c (alpha_elf_reloc_rw_mask): New.
        (TARGET_ASM_RELOC_RW_MASK): New.
        * config/i386/i386.c (x86_64_elf_select_section): Adjust call
        to categorize_decl_for_section.
        (x86_64_elf_unique_section): Likewise.
        * config/ia64/hpux.h (TARGET_ASM_SELECT_SECTION,
        TARGET_ASM_UNIQUE_SECTION, TARGET_ASM_SELECT_RTX_SECTION): Remove.
        (TARGET_ASM_RELOC_RW_MASK): New.
        * config/ia64/ia64.c (ia64_rwreloc_select_section,
        ia64_rwreloc_unique_section, ia64_rwreloc_select_rtx_section): Remove.
        (ia64_hpux_reloc_rw_mask, ia64_reloc_rw_mask): New.
        (TARGET_RWRELOC): Remove.
        (ia64_section_type_flags): Adjust call to default_section_type_flags.
        * config/ia64/sysv4.h (TARGET_ASM_RELOC_RW_MASK): New.
        * config/rs6000/rs6000.c (rs6000_elf_section_type_flags): Remove.
        (rs6000_elf_select_section, rs6000_elf_unique_section): Remove.
        (rs6000_elf_reloc_rw_mask, rs6000_xcoff_reloc_rw_mask): New.
        (rs6000_xcoff_select_section): Use decl_readonly_section.
        (rs6000_xcoff_section_type_flags): Use default_section_type_flags.
        * config/rs6000/sysv4.h (TARGET_ASM_RELOC_RW_MASK): New.
        (TARGET_ASM_SELECT_SECTION, TARGET_ASM_UNIQUE_SECTION): Remove.
        (TARGET_SECTION_TYPE_FLAGS): Remove.
        * config/rs6000/xcoff.h (TARGET_ASM_RELOC_RW_MASK): New.

2007-03-09  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (fold_comparison): Remove compile-time evaluation of
        complex constant equality/inequality comparisons for here.
        (fold_binary) <EQ_EXPR>: Simplify complex comparisons that are
        known at compile-time or can be simplified to a scalar comparison.
        (fold_relational_const): Move compile-time evaluation of complex
        constant equality/inequality comparisons to here.

2007-03-09  Alexandre Oliva  <aoliva@redhat.com>

        PR rtl-optimization/30643
        * cse.c (cse_insn): Recompute dest_hash after insert_regs for
        dest_addr_elt.
        (fold_rtx): Recurse, like before 2006-11-03.

2007-03-09  DJ Delorie  <dj@redhat.com>

        * config/m32c/t-m32c (m32c-pragma.o): Add TM_H dependency to
        m32c-pragma.o.

2007-03-09  Aldy Hernandez  <aldyh@redhat.com>

        PR tree-optimization/30375
        * tree-ssa-dse.c (dse_possible_dead_store_p): Do not eliminate if
        LHS of statements is not the same.
        * testsuite/gcc.dg/tree-ssa/ssa-dse-10.c: New.

2007-03-09  Chao-ying Fu  <fu@mips.com>

        * doc/extend.texi (MIPS DSP Built-in Functions): Document the DSP
        REV 2.
        * doc/invoke.texi (-mdspr2): Document new option.
        * config/mips/mips.md (UNSPEC_ABSQ_S_QB .. UNSPEC_DPSQX_SA_W_PH):
        New unspec for DSP REV 2.
        (<u>mulsidi3_32bit_internal): Check if !TARGET_DSPR2, because
        these instructions are extended in DSP REV 2.
        (mips-dspr2.md): Include.
        * config/mips/mips.opt (mdspr2): New option.
        * config/mips/mips.c (mips_function_type): Add MIPS_V4QI_FTYPE_V4QI,
        MIPS_SI_FTYPE_SI_SI_SI, MIPS_DI_FTYPE_DI_USI_USI, MIPS_DI_FTYPE_SI_SI,
        MIPS_DI_FTYPE_USI_USI, MIPS_V2HI_FTYPE_SI_SI_SI.
        (override_options): Check TARGET_DSPR2 to enable MASK_DSP.
        (CODE_FOR_mips_mul_ph): Define it to CODE_FOR_mulv2hi3.
        (dsp_bdesc): Add DSP REV 2 builtins.  Remove 32-bit only DSP builtins.
        (dsp_32only_bdesc): New description table for 32-bit only DSP REV 1
        and 2 builtins.
        (bdesc_map): Add one field of unsupported_target_flags.
        (bdesc_arrays):  Update entries to have extra fields.  Add
        dsp_32only_bdesc.
        (mips_init_builtins): Initialize new function types.
        Check unsupported_target_fileds to filter out builtins.
        * config/mips/mips.h (TARGET_CPU_CPP_BUILTINS): Define __mips_dspr2 if
        TARGET_DSPR2.
        (ASM_SPEC): Pass mdspr2 to the assembler.
        * config/mips/mips-dspr2.md: New file.

2007-03-09  Sa Liu  <saliu@de.ibm.com>

        * config/rs6000/altivec.md: Fix vcond patterns using if_then_else.

2007-03-09  Ian Lance Taylor  <iant@google.com>

        * opts.c (common_handle_option): Treat -Wstrict-overflow (with no
        argument) like -Wstrict-overflow=2.
        * doc/invoke.texi (Warning Options): Update documentation.

2007-03-09  Dirk Mueller  <dmueller@suse.de>

        PR c++/17946
        * doc/invoke.texi (-Wlogical-op): Document.
        * common.opt (-Wlogical-op): New.
        * c-common.h (warn_logical_operator): Declare.
        * c-common.c (warn_logical_operator): Define.
        * c-typeck.c (parser_build_binary_op): Call
        warn_logical_operator.

2007-03-09  Alexandre Oliva  <aoliva@redhat.com>

        * rtl.h (gen_rtx_ASM_INPUT): Use "" instead of NULL file name.
        * final.c (final_scan_insn): Test for non-"" file name.

2007-03-09  Sebastian Pop  <sebastian.pop@inria.fr>

        * doc/loop.texi: Document the Omega linear constraints solver.
        * doc/invoke.texi: Document -fcheck-data-deps, omega-max-vars,
        omega-max-geqs, omega-max-eqs, omega-max-wild-cards,
        omega-hash-table-size, omega-max-keys, and
        omega-eliminate-redundant-constraints.
        * tree-pass.h (pass_check_data_deps): Declared.
        * omega.c: New.
        * omega.h: New.
        * timevar.def (TV_CHECK_DATA_DEPS): Declared.
        * tree-ssa-loop.c (check_data_deps, gate_check_data_deps,
        pass_check_data_deps): New.
        * tree-data-ref.c (init_data_ref): Remove declaration.
        (dump_data_dependence_relation): Dump DDR_INNER_LOOP.
        (analyze_array): Renamed init_array_ref, move up initializations.
        (init_data_ref): Renamed init_pointer_ref.  Moved before its call.
        Removed arguments that are set to NULL.
        (analyze_indirect_ref): Correct indentation, correct call to
        init_pointer_ref.
        (object_analysis): Call init_array_ref instead of analyze_array.
        (initialize_data_dependence_relation): Initialize DDR_INNER_LOOP.
        (access_functions_are_affine_or_constant_p): Use DR_ACCESS_FNS instead
        of DR_ACCESS_FNS_ADDR.
        (init_omega_eq_with_af, omega_extract_distance_vectors,
        omega_setup_subscript, init_omega_for_ddr_1, init_omega_for_ddr,
        ddr_consistent_p): New.
        (compute_affine_dependence): Check consistency of ddrs when
        flag_check_data_deps is passed.
        (analyze_all_data_dependences): Uncomment.
        (tree_check_data_deps): New.
        * tree-data-ref.h: Include omega.h.
        (DR_ACCESS_FNS_ADDR): Removed.
        (data_dependence_relation): Add inner_loop.
        (DDR_INNER_LOOP): New.
        * common.opt (fcheck-data-deps): New.
        * tree-flow.h (tree_check_data_deps): Declare.
        * Makefile.in (TREE_DATA_REF_H): Depend on omega.h.
        (OBJS-common): Depend on omega.o.
        (omega.o): Define.
        * passes.c (pass_check_data_deps): Scheduled.
        * params.def (PARAM_OMEGA_MAX_VARS, PARAM_OMEGA_MAX_GEQS,
        PARAM_OMEGA_MAX_EQS, PARAM_OMEGA_MAX_WILD_CARDS,
        PARAM_OMEGA_HASH_TABLE_SIZE, PARAM_OMEGA_MAX_KEYS,
        PARAM_VECT_MAX_VERSION_CHECKS,
        PARAM_OMEGA_ELIMINATE_REDUNDANT_CONSTRAINTS): New.

2007-03-09  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/30904
        PR middle-end/31058
        * tree-vrp.c (extract_range_from_binary_expr): Handle RSHIFT_EXPR
        the same way as *_DIV_EXPR.

2007-03-09  Alexandre Oliva  <aoliva@redhat.com>

        * recog.c (decode_asm_operands): No mixed declarations and code.

2007-03-09  Alexandre Oliva  <aoliva@redhat.com>

        * rtl.def (ASM_INPUT): Add location.
        * rtl.h (ASM_INPUT_SOURCE_LOCATION): New.
        (ASM_INPUT_SOURCE_FILE, ASM_INPUT_SOURCE_LINE): New.
        (decode_asm_operands): Add loc operand.
        (gen_rtx_ASM_INPUT, gen_rtx_ASM_INPUT_loc): Define.
        * stmt.c (expand_asm): Rename to...
        (expand_asm_loc): ... this.  Add locus argument.  Pass it on to
        gen_rtx_ASM_INPUT_loc.
        (expand_asm_expr): Adjust.
        * recog.c (decode_asm_operands): Add loc operand.
        (check_asm_operands, extract_insn): Adjust.
        * reload1.c (maybe_fix_stack_asms): Likewise.
        * final.c (asm_insn_count): Likewise.
        (final_scan_insn): Output # line before and after asm.

2007-03-09  Daniel Berlin  <dberlin@dberlin.org>

        * tree-ssa-structalias.c (variable_info): Remove
        finished_solution.
        (new_var_info): Ditto.
        (shared_bitmap_info_t): New structure.
        (shared_bitmap_table): New variable.
        (shared_bitmap_hash): New function.
        (shared_bitmap_eq): Ditto
        (shared_bitmap_lookup): Ditto.
        (shared_bitmap_add): Ditto.
        (merge_smts_into): Change to take bitmap directly.
        (find_what_p_points_to): Rewrite to use shared bitmap hashtable.
        (init_alias_vars): Init shared bitmap hashtable.
        (delete_points_to_sets): Delete shared bitmap hashtable.
        * tree-ssa-operands.c (add_virtual_operand): Partially revert the
        is_aliased removal as a change that was still necessary was
        deleted.

2007-03-09  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.h (override_options): Conditionally disable
        x86_sahf for 64bit targets only.

2007-03-08  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR C/31072
        * c-decl.c (merge_decls): Don't call make_var_volatile.
        * varasm.c (make_var_volatile): Remove.
        * output.h (make_var_volatile): Remove.

2007-03-08  Zdenek Dvorak  <dvorakz@suse.cz>

        PR tree-optimization/31085
        * tree-ssa-address.c (create_mem_ref): Fix test of type of base.

2007-03-08  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.def (lceil, lceilf, lceill, lfloor, lfloorf, lfloorl,
        llceil, llceilf, llceill, llfloor, llfloorf, llfloorl): Mark with
        ATTR_CONST_NOTHROW_LIST.

        * fold-const.c (tree_expr_nonnegative_warnv_p): Handle
        FIX_TRUNC_EXPR.

2007-03-08  Diego Novillo  <dnovillo@redhat.com>

        * doc/tree-ssa.texi: Remove documentation for V_MUST_DEF.

2007-03-08  Geoffrey Keating  <geoffk@apple.com>

        PR 31013
        * gccspec.c (lang_specific_driver): Do nothing when NEXT_OBJC_RUNTIME
        is declared.
        * config/darwin.h (REAL_LIBGCC_SPEC): When -fgnu-runtime is
        passed, use shared libgcc.

2007-03-08  Roger Sayle  <roger@eyesopen.com>

        * tree-eh.c (do_return_redirection): Call build_gimple_modify_stmt
        instead of calling build2 with a GIMPLE_MODIFY_STMT.
        (honor_protect_cleanup_actions, lower_try_finally_switch):
        Likewise.
        * tree-if-conv.c (replace_phi_with_cond_gimple_modify_stmt,
        ifc_temp_var): Likewise.
        * tree-inline.c (setup_one_parameter): Likewise.
        * tree-mudflap.c (mf_decl_cache_locals,
        mf_build_check_statement_for): Likewise.
        * tree-nested.c (init_tmp_var, save_tmp_var,
        finalize_nesting_tree_1): Likewise.
        * tree-outof-ssa.c (insert_copy_on_edge,
        insert_backedge_copies): Likewise.
        * tree-profile.c (tree_gen_edge_profiler,
        tree_gen_ic_profiler): Likewise.
        * tree-scalar-evolution.c (scev_const_prop): Likewise.
        * tree-sra.c (sra_build_assignment): Likewise.
        * tree-ssa-loop-im.c (determine_invariantness_stmt): Likewise.
        * tree-ssa-math-opts.c (insert_reciprocals,
        execute_cse_sincos_1): Likewise.
        * tree-tailcall.c (adjust_accumulator_values,
        adjust_return_value): Likewise.
        * tree-vect-patterns.c (vect_pattern_recog_1): Likewise.
        * tree-vect-transform.c (vect_create_data_ref_ptr,
        bump_vector_ptr, vect_init_vector, get_initial_def_for_induction,
        vect_create_epilog_for_reduction, vectorizable_reduction,
        vectorizable_call, vectorizable_conversion,
        vectorizable_assignment, vectorizable_operation,
        vectorizable_type_demotion, vect_gen_widened_results_half,
        vect_permute_store_chain, vectorizable_store,
        vect_setup_realignment, vect_permute_load_chain,
        vectorizable_load, vectorizable_condition,
        vect_create_cond_for_align_checks): Likewise.
        * tree-vrp.c (build_assert_expr_for): Likewise.

2007-03-08  Ian Lance Taylor  <iant@google.com>

        * tree-vrp.c: Include "intl.h".
        (usable_range_p): New static function.
        (compare_values_warnv): Don't test TYPE_OVERFLOW_UNDEFINED for
        overflowed values, juts set *strict_overflow_p.
        (compare_values): Only return -2 if one of the operands is not a
        constant.
        (compare_ranges): Call usable_range_p.
        (compare_range_with_value): Likewise.
        (vrp_evaluate_conditional_warnv): Rename from
        vrp_evaluate_conditional.  Make static.  Change all callers.
        (vrp_evaluate_conditional): New function.
        (simplify_div_or_mod_using_ranges): Issue warning about reliance
        on signed overflow.
        (simplify_abs_using_ranges): Likewise.
        (simplify_stmt_for_jump_threading): Add within_stmt parameter.
        * tree-ssa-dom.c (simplify_stmt_for_jump_threading): Add
        within_stmt parameter.
        * tree-ssa-propagate.c (fold_predicate_in): Update call to
        vrp_evaluate_conditional.
        * tree-ssa-threadedge.c
        (record_temporary_equivalences_from_stmts_at_dest): Change
        simplify parameter to take a second tree parameter.
        (simplify_control_stmt_condition): Likewise.
        (thread_across_edge): Likewise.
        * tree-flow.h (vrp_evaluate_conditional): Update declaration.
        (thread_across_edge): Likewise.
        * gcc/Makefile.in (tree-vrp.o): Depend upon intl.h.

2007-03-08  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.h (TARGET_SAHF): New define.
        * config/i386/i386.c (ix86_tune_features) [X86_TUNE_USE_SAHF]:
        Also enable for m_K8, m_AMDFAM10 and m_CORE2.
        (x86_sahf): New global variable.
        (override_options): Add PTA_NO_SAHF to pta_flags enum.  Recode
        pta_flags masks using shifts.  Add PTA_NO_SAHF to x86_64 and
        nocona processor flags.  Set x86_sahf when PTA_NO_SAHF is not set
        in processor flags.  Do not unconditionally disable TARGET_USE_SAHF
        for 64-bit.
        (ix86_fp_comparison_sahf_cost): Return high value for !TARGET_SAHF.
        (ix86_expand_fp_compare): Check for TARGET_CMOVE or TARGET_SAHF
        when expanding fcomi/sahf based tests.
        (ix86_emit_fp_unordered_jump): Check for TARGET_SAHF when
        expanding sahf based alternative. Emit sahf based sequence when
        optimizing for code size.
        * config/i386/i386.md (x86_sahf_1): Do not disable for
        TARGET_64BIT, enable for TARGET_SAHF.

2007-03-08  Martin Michlmayr  <tbm@cyrius.com>

        * tree-ssa-coalesce.c (fail_abnormal_edge_coalesce): Remove
        spurious whitespace from error message.

2007-03-08  Volker Reichelt  <reichelt@netcologne.de>

        PR c++/30852
        * c-common.c (fold_offsetof_1): Handle COMPOUND_EXPR.

2007-03-08  Alexandre Oliva  <aoliva@redhat.com>

        * c-decl.c (grokdeclarator): Disable warnings for anonymous
        bitfields.
        * tree-sra.c (instantiate_element): Propagate disabled warnings
        from the element itself to the created variable.

2007-03-07  Richard Henderson  <rth@redhat.com>

        PR target/30848
        * reg-stack.c (emit_swap_insn): If a malformed asm was seen,
        silently fix up the stack in the case of a missing register.

2007-03-07  Paul Brook  <paul@codesourcery.com>

        * config/arm/libunwind.S: Add .arch/.object_arch for armv4 builds.

2007-03-07  Joseph Myers  <joseph@codesourcery.com>

        * config/arm/unwind-arm.c (struct wmmxd_regs, struct wmmxc_regs):
        New.
        (phase1_vrs): Use them.
        (DEMAND_SAVE_WMMXD, DEMAND_SAVE_WMMXC): New.
        (__gnu_Unwind_Save_WMMXD, __gnu_Unwind_Restore_WMMXD,
        __gnu_Unwind_Save_WMMXC, __gnu_Unwind_Restore_WMMXC): Declare.
        (restore_non_core_regs): Call __gnu_Unwind_Restore_WMMXD and
        __gnu_Unwind_Restore_WMMXC if required.
        (_Unwind_VRS_Pop): Implement iWMMXt support.
        * config/arm/libunwind.S (gnu_Unwind_Restore_WMMXD,
        gnu_Unwind_Save_WMMXD, gnu_Unwind_Restore_WMMXC,
        gnu_Unwind_Save_WMMXC): Define.

2007-03-07  Richard Sandiford  <richard@codesourcery.com>

        * config/vxworks.h (vxworks_override_options): Declare.
        (VXWORKS_OVERRIDE_OPTIONS): Use it.
        * config/vxworks.c: Include target.h and toplev.h.
        (vxworks_override_options): New function.
        * config/t-vxworks (vxworks.o): Depend on $(TARGET_H) and toplev.h.

2007-03-07  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.c (override_options): Don't emit an error when
        -mstack-size is used without providing -mstack-guard.
        (s390_emit_prologue): Choose stack_guard value automatically if not
        provided via command line.
        * doc/invoke.texi: Adjust description of -mstack-guard and -mstack-size.

2007-03-07  Richard Sandiford  <richard@codesourcery.com>

        * config/i386/i386.c (output_set_got): Add a GOT initialization
        sequence for VxWorks PIC.
        (legitimate_pic_address_disp_p): Allow UNSPEC_GOT wrappers
        around labels as well as symbols.  Use gotoff_operand instead
        of local_symbolic_operand.
        (legitimize_pic_address): Use gotoff_operand instead of
        local_symbolic_operand.  Use @GOT accesses for labels as
        well as symbols.
        (ix86_output_addr_diff_elt): Use PC-relative rather than
        GP-relative offsets for VxWorks PIC.
        (ix86_expand_move): Pass NULL_RTX to legitimize_pic_address unless
        no_new_pseudos.  Check whether the returned register is op0.
        * config/i386/i386.md (tablejump): Use PC-relative rather than
        GP-relative offsets for VxWorks PIC.
        * config/i386/predicates.md (gotoff_operand): New predicate.

2007-03-06  Richard Sandiford  <richard@codesourcery.com>

        * config/vxworks.h (VXWORKS_GOTT_BASE, VXWORKS_GOTT_INDEX): Undefine
        before defining.
        * config/vxworks-dummy.h: New file.
        * config/i386/i386.h: Include it.

2007-03-07  Alexandre Oliva  <aoliva@redhat.com>

        * dwarf2out.c (is_inlined_entry_point): New
        (add_high_low_attributes): Emit DW_AT_entry_pc along with
        DW_AT_ranges if the first subblock is the entry point.

2007-03-06  David Daney  <ddaney@avtrex.com>

        * doc/install.texi (mips-*-*): Change recommended binutils
        version.

2007-03-06  Anatoly Sokolov <aesok@post.ru>

        * config/avr/avr.c (avr_mcu_types): Add support for ATmega325P,
        ATmega3250P, ATmega329P, ATmega3290P, AT90USB82 and AT90USB162
        devices.
        * config/avr/avr.h (LINK_SPEC, CRT_BINUTILS_SPECS): (Ditto.).
        * config/avr/t-avr (MULTILIB_MATCHES): (Ditto.).

2007-03-06  Jan Hubicka  <jh@suse.cz>

        * errors.h (warning, error, fatal, internal_error): Mark as cold.
        * predict.c (maybe_hot_bb): Cold functions are never hot; hot functions
        are hot.
        (probably_cold_bb_p): Cold functions are cold.
        (probably_never_executed_bb_p): Cold functions are cold.
        (tree_bb_level_predictions): Predict calls to cold functions as not
        taken.
        (compute_function_frequency): Check hot/cold attributes.
        * function.h (function_frequency): Update comments.
        * predict.def (PRED_COLD_FUNCTION): Predict cold function.
        * c-common.c (handle_hot_attribute, handle_cold_attribute): New.
        (c_common_att): Add cold and hot.

        * doc/extend.texi (hot,cold attributes): Document.

2007-03-06  Andrew Haley  <aph@redhat.com>

        * function.c (expand_function_end): Move blockage to just after we
        emit the label for the naked return from the function.

2007-03-06  Richard Sandiford  <richard@codesourcery.com>

        * config/i386/att.h (ASM_OUTPUT_ASCII, ASM_OUTPUT_SKIP): Undefine
        before redefining.

2007-03-06  Jan Hubicka  <jh@suse.cz>

        * reg-stack.c (reg_to_stack): Large models don't allow NAN to be
        loaded for constant large models.  Non-large 64bit PIC can do.
        * i386.h (CASE_VECTOR_MODE): Large PIC cases are 64bit.
        * cmodel.h: Add LARGE PIC.
        * i386.md (UNSPEC_PLTOFF): New.
        (UNSPEC_SET_RIP, UNSPEC_SET_GOT_OFFSET): New; renumber other unspecs as
        needed.
        (*call_1_rex64): Disable for large models.
        (*call_1_rex64_large): New.
        (*call_value_1_rex64): Disable for large models.
        (*call_value_1_rex64_large): New.
        (set_rip_rex4): New.
        (set_got_offset_rex64): New.
        * predicates.md (constant_call_address_operand): For large model
        constant calls are not possible.
        * i386-protos.h (construct_plt_address): Declare.
        * i386.c (override_options): Accept large models.
        (ix86_expand_prologue): Expand large PIC GOT pointer load.
        (legitimate_constant_p): Add new UNSPECs.
        (legitimate_pic_operand_p): Likewise.
        (legitimate_pic_address_disp_p): Disallow local symbols for large PICs.
        (legitimize_pic_address): Do easy RIP relative way for TLS only for
        non-large model.
        (output_pic_addr_const): Add PLTOFF.
        (ix86_output_addr_diff_elt): Output 64bit tables when needed.
        (ix86_expand_move): Legitimize pic address when in PIC mode.
        (construct_plt_address): New function.
        (ix86_expand_call): Offload the address to register and use GOT pointer
        for large model.
        * invoke.texi (mcmodel=large): Update documentation.

2007-03-06  Richard Henderson  <rth@redhat.com>

        * config/i386/i386.c (x86_use_leave, x86_push_memory,
        x86_zero_extend_with_and, x86_movx, x86_double_with_add,
        x86_use_bit_test, x86_unroll_strlen, x86_deep_branch,
        x86_branch_hints, x86_use_sahf, x86_partial_reg_stall,
        x86_partial_flag_reg_stall, x86_use_himode_fiop, x86_use_simode_fiop,
        x86_use_mov0, x86_use_cltd, x86_read_modify_write, x86_read_modify,
        x86_split_long_moves, x86_promote_QImode, x86_fast_prefix,
        x86_single_stringop, x86_qimode_math, x86_promote_qi_regs,
        x86_himode_math, x86_promote_hi_regs, x86_sub_esp_4, x86_sub_esp_8,
        x86_add_esp_4, x86_add_esp_8, x86_integer_DFmode_moves,
        x86_partial_reg_dependency, x86_memory_mismatch_stall,
        x86_prologue_using_move, x86_epilogue_using_move, x86_shift1,
        x86_sse_partial_reg_dependency, x86_sse_split_regs,
        x86_sse_unaligned_move_optimal, x86_sse_typeless_stores,
        x86_sse_load0_by_pxor, x86_use_ffreep, x86_use_incdec,
        x86_inter_unit_moves, x86_ext_80387_constants, x86_four_jump_limit,
        x86_schedule, x86_use_bt, x86_pad_returns,
        x86_use_xchgb): Merge into ...
        (ix86_tune_features): ... here.  New array.
        (x86_cmove, x86_cmpxchg, x86_cmpxchg8b, x86_xadd,
        x86_bswap): Merge into ...
        (ix86_arch_features): ... here.  New array.
        (x86_3dnow_a): Remove.
        (x86_accumulate_outgoing_args): Make static.
        (x86_arch_always_fancy_math_387): Make static.
        (ix86_tune_mask, ix86_arch_mask): Move ...
        (override_options): ... to local variables here.  Apply the
        appropriate mask to each element of ix86_arch_features and
        ix86_tune_features.  Adjust TARGET_CMOVE and TARGET_USE_SAHF
        as were done in the old macros.
        (standard_80387_constant_p): Use TARGET_EXT_80387_CONSTANTS.
        * config/i386/i386.h (x86_use_leave, x86_push_memory,
        x86_zero_extend_with_and, x86_use_bit_test, x86_cmove, x86_deep_branch,
        x86_branch_hints, x86_unroll_strlen, x86_double_with_add,
        x86_partial_reg_stall, x86_movx, x86_use_himode_fiop,
        x86_use_simode_fiop, x86_use_mov0, x86_use_cltd, x86_use_xchgb,
        x86_read_modify_write, x86_read_modify, x86_split_long_moves,
        x86_promote_QImode, x86_single_stringop, x86_fast_prefix,
        x86_himode_math, x86_qimode_math, x86_promote_qi_regs,
        x86_promote_hi_regs, x86_integer_DFmode_moves, x86_add_esp_4,
        x86_add_esp_8, x86_sub_esp_4, x86_sub_esp_8,
        x86_partial_reg_dependency, x86_memory_mismatch_stall,
        x86_accumulate_outgoing_args, x86_prologue_using_move,
        x86_epilogue_using_move, x86_decompose_lea,
        x86_arch_always_fancy_math_387, x86_shift1,
        x86_sse_partial_reg_dependency, x86_sse_split_regs,
        x86_sse_unaligned_move_optimal, x86_sse_typeless_stores,
        x86_sse_load0_by_pxor, x86_use_ffreep, x86_inter_unit_moves,
        x86_schedule, x86_use_bt, x86_cmpxchg, x86_cmpxchg8b, x86_xadd,
        x86_use_incdec, x86_pad_returns, x86_bswap,
        x86_partial_flag_reg_stall): Remove.
        (enum ix86_tune_indices): New.
        (ix86_tune_features): New.
        (TARGET_USE_LEAVE, TARGET_PUSH_MEMORY, TARGET_ZERO_EXTEND_WITH_AND,
        TARGET_USE_BIT_TEST, TARGET_UNROLL_STRLEN,
        TARGET_DEEP_BRANCH_PREDICTION, TARGET_BRANCH_PREDICTION_HINTS,
        TARGET_DOUBLE_WITH_ADD, TARGET_USE_SAHF, TARGET_MOVX,
        TARGET_PARTIAL_REG_STALL, TARGET_PARTIAL_FLAG_REG_STALL,
        TARGET_USE_HIMODE_FIOP, TARGET_USE_SIMODE_FIOP, TARGET_USE_MOV0,
        TARGET_USE_CLTD, TARGET_USE_XCHGB, TARGET_SPLIT_LONG_MOVES,
        TARGET_READ_MODIFY_WRITE, TARGET_READ_MODIFY, TARGET_PROMOTE_QImode,
        TARGET_FAST_PREFIX, TARGET_SINGLE_STRINGOP, TARGET_QIMODE_MATH,
        TARGET_HIMODE_MATH, TARGET_PROMOTE_QI_REGS, TARGET_PROMOTE_HI_REGS,
        TARGET_ADD_ESP_4, TARGET_ADD_ESP_8, TARGET_SUB_ESP_4,
        TARGET_SUB_ESP_8, TARGET_INTEGER_DFMODE_MOVES,
        TARGET_PARTIAL_REG_DEPENDENCY, TARGET_SSE_PARTIAL_REG_DEPENDENCY,
        TARGET_SSE_UNALIGNED_MOVE_OPTIMAL, TARGET_SSE_SPLIT_REGS,
        TARGET_SSE_TYPELESS_STORES, TARGET_SSE_LOAD0_BY_PXOR,
        TARGET_MEMORY_MISMATCH_STALL, TARGET_PROLOGUE_USING_MOVE,
        TARGET_EPILOGUE_USING_MOVE, TARGET_SHIFT1, TARGET_USE_FFREEP,
        TARGET_INTER_UNIT_MOVES, TARGET_FOUR_JUMP_LIMIT, TARGET_SCHEDULE,
        TARGET_USE_BT, TARGET_USE_INCDEC, TARGET_PAD_RETURNS,
        TARGET_EXT_80387_CONSTANTS): Use it.
        (enum ix86_arch_indices): New.
        (ix86_arch_features): New.
        (TARGET_CMOVE, TARGET_CMPXCHG, TARGET_CMPXCHG8B, TARGET_XADD,
        TARGET_BSWAP): Use it.
        (ix86_tune_mask, ix86_arch_mask): Remove.

2007-03-06  Joseph Myers  <joseph@codesourcery.com>

        PR bootstrap/31020
        * configure.ac (CROSS_SYSTEM_HEADER_DIR, build_system_header_dir):
        Define using $${sysroot_headers_suffix}.
        * configure: Regenerate.
        * cppdefault.c (cpp_include_defaults): Make FIXED_INCLUDE_DIR a
        multilib-suffixed directory if SYSROOT_HEADERS_SUFFIX_SPEC
        defined.
        * doc/invoke.texi (-print-sysroot-headers-suffix): Document.
        * gcc.c (print_sysroot_headers_suffix): New.
        (option_map): Include --print-sysroot-headers-suffix.
        (display_help): Mention -print-sysroot-headers-suffix.
        (process_command): Handle -print-sysroot-headers-suffix.
        (do_spec_1): Append multilib directory to include-fixed path if
        sysroot suffixes in use.
        (main): Handle -print-sysroot-headers-suffix.
        * Makefile.in (start.encap): Don't depend on xlimits.h
        (xlimits.h): Remove.
        (stmp-int-hdrs): Don't depend on xlimits.h.  Inline generation of
        limits.h for each multilib in fixinc_list.
        (fixinc_list, s-fixinc_list): New.
        (stmp-fixinc): Depend on fixinc_list.  If not copying headers,
        generate them for each multilib in fixinc_list.
        (stmp-fixproto): Use include-fixed.  Run fixproto for each
        multilib in fixinc_list.
        (mostlyclean): Don't remove xlimits.h.
        (clean): Remove include-fixed.
        (real-install-headers-tar, real-install-headers-cpio,
        real-install-headers-cp): Don't copy include, only include-fixed.
        (install-mkheaders): Depend on fixinc_list.  Don't depend on
        xlimits.h.  Save limits.h files for each multilib in fixinc_list.
        Always save mkinstalldirs.  Preserve ${sysroot_headers_suffix} in
        SYSTEM_HEADER_DIR setting in mkheaders.conf.

2007-03-06  Jan Hubicka  <jh@suse.cz>

        * regstack.c (reg_to_stack): When in 64bit PIC mode, we still can load
        NANs easilly.

2007-03-06  Richard Sandiford  <richard@codesourcery.com>

        * configure.ac: Allow tm_file to contain build-directory files.
        * configure: Regenerate.
        * config.gcc (m68k-*-uclinux*): Add ./sysroot-suffix.h to tm_file.
        * config/m68k/t-uclinux (sysroot-suffix.h): New target.
        * config/m68k/print-sysroot-suffix.sh: New file.

2007-03-06  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.h (PIC_OFFSET_TABLE_REGNUM): Use the REGNO
        of pic_offset_table_rtx if reload_completed.
        (CONDITIONAL_REGISTER_USAGE): Use PIC_REG instead of
        PIC_OFFSET_TABLE_REGNUM.
        * config/m68k/m68k.c (TARGET_ASM_CAN_OUTPUT_MI_THUNK): Always
        return true.
        (m68k_save_reg): Use PIC_REG instead of PIC_OFFSET_TABLE_REGNO.
        (m68k_output_mi_thunk): Rewrite to use RTL.  Honor vcall_offset.

2007-03-06  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.c (m68k_save_reg): Save the PIC register in
        functions that call eh_return.

2007-03-06  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.c (m68k_save_reg): Save the PIC register in
        functions that need a constant pool.

2007-03-06  Richard Sandiford  <richard@codesourcery.com>

        PR target/28181
        * config/m68k/m68k-protos.h (m68k_secondary_reload_class): Declare.
        (m68k_preferred_reload_class): Likewise.
        * config/m68k/m68k.h (HARD_REGNO_MODE_OK): Remove duplicated comment.
        (SECONDARY_RELOAD_CLASS): Define.
        (PREFERRED_RELOAD_CLASS): Use m68k_preferred_reload_class.
        (LIMIT_RELOAD_CLASS): Delete.
        * config/m68k/m68k.c (m68k_regno_mode_ok): Don't prevent address
        registers from storing bytes.
        (m68k_secondary_reload_class): New function.
        (m68k_preferred_reload_class): Likewise.

2007-03-06  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.c (m68k_save_reg): Remove special case for
        leaf functions.
        (m68k_expand_prologue): Likewise.

2007-03-06  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k-protos.h (output_sibcall): Declare.
        (mips_expand_epilogue): Add a bool parameter.
        (m68k_legitimize_sibcall_address): Declare.
        * config/m68k/m68k.c (TARGET_FUNCTION_OK_FOR_SIBCALL): Define.
        (m68k_expand_epilogue): Add a parameter to select between sibling
        and normal epilogues.  Only generate a return for the latter.
        (m68k_ok_for_sibcall_p): New function.
        (m68k_legitimize_sibcall_address, output_sibcall): New functions.
        * config/m68k/m68k.md (sibcall, *sibcall): New patterns.
        (sibcall_value, *sibcall_value): Likewise.
        (*call, *call_value): Require !SIBLING_CALL_P.
        (epilogue): Update call to m68k_expand_epilogue.
        (sibcall_epilogue): New pattern.
        * config/m68k/predicates.md (const_call_operand): Say that this
        predicate applies to sibling calls too.
        (sibcall_operand): New predicate.

2007-03-06  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.md (movsf_cf_soft): Provide the same non-mov3q
        alternatives as movsi_cf.
        (movsf_cf_hard): Add commentary.

2007-03-06  Kazu Hirata  <kazu@codesourcery.com>
            Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k-protos.h (m68k_interrupt_function_p): Declare.
        (m68k_movem_pattern_p, m68k_output_movem): Likewise.
        (m68k_expand_prologue, m68k_expand_epilogue): Likewise.
        * config/m68k/m68k.h (EPILOGUE_USES): Define.  Treat all registers
        as being live on exit from an interrupt function.
        (PRINT_OPERAND_PUNCT_VALID_P): Return true for '?'.
        * config/m68k/m68k.c (MIN_MOVEM_REGS, MIN_FMOVEM_REGS): New macros.
        (m68k_frame): Remove reg_rev_mask and fpu_rev_mask.
        (TARGET_ASM_FUNCTION_PROLOGUE, TARGET_ASM_FUNCTION_EPILOGUE): Delete.
        (m68k_interrupt_function_p): Globalize.
        (m68k_compute_frame_layout): Remove reverse mask code.
        (m68k_emit_movem, m68k_set_frame_related): New functions.
        (m68k_output_function_prologue): Delete in favor of...
        (m68k_expand_prologue): ...this new function.
        (m68k_output_function_epilogue): Delete in favor of...
        (m68k_expand_epilogue): ...this new function.
        (m68k_split_offset, m68k_movem_pattern_p, m68k_output_movem): New
        functions.
        (print_operand): Handle %?.
        * config/m68k/m68k.md (UNSPEC_SIN, UNSPEC_COS): Remove excess space.
        (UNSPEC_GOT, A1_REG, PIC_REG, FP0_REG): New constants.
        (prologue, epilogue): New patterns.
        (return): Turn into a define_expand.
        (*return): New pattern, derived from old "return" pattern.  Use rte
        rather than rts for interrupt functions.  Only use rtd if the pop
        count is nonzero.
        (*m68k_store_multiple, *m68k_store_multiple_automod): New patterns.
        (*m68k_load_multiple, *m68k_load_multiple_automod): Likewise.
        (link, *link, unlink, *unlink, load_got): Likewise.

2007-03-06  Richard Sandiford  <richard@codesourcery.com>

        PR target/23482
        PR target/17114
        * config/m68k/m68k-protos.h (m68k_legitimate_base_reg_p): Declare.
        (m68k_legitimate_index_reg_p, m68k_legitimate_address_p): Likewise.
        (m68k_matches_q_p, m68k_matches_u_p): Likewise.
        * config/m68k/m68k.h (EXTRA_CONSTRAINT): Use m68k_matches_q_p
        and m68k_matches_u_p.
        (PCREL_GENERAL_OPERAND_OK, LEGITIMATE_BASE_REG_P): Delete.
        (INDIRECTABLE_1_ADDRESS_P, GO_IF_NONINDEXED_ADDRESS): Delete.
        (GO_IF_INDEXABLE_BASE, GO_IF_INDEXING, GO_IF_INDEXED_ADDRESS): Delete.
        (LEGITIMATE_INDEX_REG_P, LEGITIMATE_INDEX_P): Delete.
        (GO_IF_COLDFIRE_FPU_LEGITIMATE_ADDRESS): Delete.
        (REG_STRICT_P): New macro.
        (LEGITIMATE_PIC_OPERAND_P): Use REG_STRICT_P rather than
        PCREL_GENERAL_OPERAND_OK.
        (REG_OK_FOR_BASE_P): Merge definitions.  Use REG_STRICT_P and
        m68k_legitimate_base_reg_p.
        (REG_MODE_OK_FOR_INDEX_P): Likewise m68k_legitimate_index_reg_p.
        (GO_IF_LEGITIMATE_ADDRESS): Likewise m68k_legitimate_address_p.
        (PIC_CASE_VECTOR_ADDRESS): Update comment.
        * config/m68k/m68k.c (m68k_address): New structure.
        (m68k_legitimate_base_reg_p, m68k_legitimate_index_reg_p)
        (m68k_decompose_index, m68k_legitimate_constant_address_p)
        (m68k_jump_table_ref_p, m68k_decompose_address)
        (m68k_legitimate_address_p, m68k_legitimate_mem_p, m68k_matches_q_p)
        (m68k_matches_u_p): New functions.
        (print_operand_address): Rewrite to use m68k_decompose_index.

2007-03-05  David Taylor  <dtaylor@emc.com>

        * gcc.c: Correct copyright date in --version output.

2007-03-05  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa.md: In unamed move patterns, disparge copies between general
        and floating point registers using '?' modifier.  Don't include 'f'
        constraint for register preferences in DImode, SImode, HImode and
        QImode patterns.  Likewise for 'r' in DFmode and SFmode patterns.
        Remove constraints for copies between general and floating registers
        in soft-float DFmode pattern.
        (movdf): Fail if operand1 is a CONST_DOUBLE and operand0 is a hard
        floating register.
        (movsf): Likewise.

2007-03-05  Mike Stump  <mrs@apple.com>

        * c-common.c (targetcm): Add.
        * c-opts.c (c_common_handle_option): Handle language specific
        target options.
        * opts.c (handle_option): Verify language for target options, if
        any are given.
        * opth-gen.awk: Add CL_LANG_ALL.
        * target-def.h (TARGET_HANDLE_C_OPTION): Add.
        (TARGETCM_INITIALIZER): Add.
        * target.h (struct gcc_targetcm): Add.
        (targetcm): Add.
        * targhooks.c (default_handle_c_option): Add.
        * targhooks.h (default_handle_c_option): Add.
        * doc/tm.texi (TARGET_HANDLE_C_OPTION): Add.

        * config/darwin.opt (iframework): Add.
        * config/darwin.h (TARGET_HAS_TARGETCM): Add.
        * config/darwin-c.c (handle_c_option): Add.
        (TARGET_HANDLE_C_OPTION): Add.
        (targetcm): Add.
        * doc/invoke.texi (Darwin Options): Add -iframework.

2007-03-05  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * convert.c (convert_to_integer): Fix nearbyint/rint -> *lrint
        conversion.

2007-03-05  Ian Lance Taylor  <iant@google.com>

        * c.opt (fgnu89-inline): New option.
        * c-opts.c (c_common_post_options): Set default value for
        flag_gnu89_inline.
        * c-decl.c (WANT_C99_INLINE_SEMANTICS): Remove.
        (pop_scope): Check flag_gnu89_inline rather than flag_isoc99 for
        inline functions.
        (diagnose_mismatched_decls, merge_decls, start_decl): Likewise.
        (grokdeclarator, start_function): Likewise.
        * c-cppbuiltin.c (c_cpp_builtins): Define either
        __GNUC_GNU_INLINE__ or __GNUC_STDC_INLINE__.
        * doc/invoke.texi (Option Summary): Mention -fgnu89-inline.
        (C Dialect Options): Document -fgnu89-inline.
        * doc/extend.texi (Function Attributes): Explain what the
        gnu_inline attribute does.
        * doc/cpp.texi (Common Predefined Macros): Document
        __GNUC_GNU_INLINE__ and __GNUC_STDC_INLINE__.

2007-03-05  Ian Lance Taylor  <iant@google.com>

        PR tree-optimization/31034
        * tree-vrp.c (extract_range_from_assert): Don't try to handle a
        half-range if the other side is an overflow infinity.

2007-03-05  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config.gcc (bfin*-uclinux*): Use t-bfin-uclinux.
        (bfin*-linux-uclibc*): New configuration.
        * config/linux.h (LINK_GCC_C_SEQUENCE_SPEC): Undefined before
        defining.
        * config/bfin/linux.h: New file.
        * config/bfin/libgcc-bfin.ver: New file.
        * config/bfin/t-bfin-uclinux: New file.
        * config/bfin/t-bfin-linux: New file.
        * config/bfin/uclinux.h (LINUX_TARGET_OS_CPP_BUILTINS): New macro.
        (TARGET_OS_CPP_BUILTINS): New macro.

2007-03-05  Richard Guenther  <rguenther@suse.de>

        * fold-const.c (fold_binary): Remove duplicate folding
        of comparison of non-null ADDR_EXPR against null.

2007-03-05  Richard Guenther  <rguenther@suse.de>
            Dorit Nuzman  <dorit@il.ibm.com>

        PR tree-optimization/26420
        * tree-vectorizer.c (vectorize_loops): Bail out early if there
        are no loops in the function.  Only print the number of
        vectorized loops if it is greater than zero or we are supposed
        to print information about unvectorized loops.

2007-03-05  Revital Eres  <eres@il.ibm.com>

        * gcc.dg/var-expand1.c: New test.
        * loop-unroll.c (analyze_insn_to_expand_var): Add dump info
        when an accumulator is expanded.

2007-03-04  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR other/30465
        * c-common.c (convert_and_check): Don't give warnings for
        conversion if 'expr' already overflowed.

2007-03-04  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/30744
        * fold-const.c (fold_comparison): Enforce type consistency when
        transforming ~X op ~Y to Y op X, and ~X op C to X op' ~C.

2007-03-04  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-ssa-address.c (create_mem_ref): Do not put an expression
        containing a cast to the base of TARGET_MEM_REF.

2007-03-04  Martin Michlmayr  <tbm@cyrius.com>

        * tree.c (tree_contains_struct_check_failed): Remove spurious
        whitespace from error message.

2007-03-04 Andrew Pinski <andrew_pinski@playstation.sony.com>

        PR target/30406
        * config/rs6000/rs6000.c (rs6000_function_value): Look at bit size
        instead of precision.

2007-03-04  Roman Zippel <zippel@linux-m68k.org>
            Nathan Sidwell  <nathan@codesourcery.com>

        * emit-rtl.c (find_auto_inc): New.
        (try_split): recreate REG_INC notes,
        Use regular for loops rather than whiles.

2007-03-03  Andreas Schwab  <schwab@suse.de>

        * configure.ac (HAVE_AS_REL16): Move test back to correct place.
        * configure: Regenerate.

2007-03-03  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.def (ATTR_MATHFN_FPROUNDING): Rely on
        flag_rounding_math, not flag_unsafe_math_optimizations.

        * c-pretty-print.c (pp_c_direct_abstract_declarator): Use
        fold_build2.
        * config/alpha/alpha.c (alpha_fold_builtin_zapnot,
        alpha_fold_vector_minmax): Likewise.
        * config/i386/i386.c (ix86_gimplify_va_arg): Likewise.
        * config/sparc/sparc.c (sparc_gimplify_va_arg): Likewise.

2007-03-02  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-sra.c (sra_walk_fns) <ldst>: Document new restriction.
        (sra_walk_modify_expr) <rhs_elt>: Treat the reference as a use
        if the lhs has side-effects.
        <lhs_elt>: Treat the reference as a use if the rhs has side-effects.

2007-03-02  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.h (TUNEMASK): Remove define.
        (ARCHMASK): Remove define.
        (TARGET_*): Use ix86_tune_mask variable instead of TUNEMASK.
         Use ix86_arch_mask variable instead of ARCHMASK.
        * config/i386/i386.c (override_options): Ditto.
        (standard_80387_constant_p): Ditto.

2007-03-02  Ian Lance Taylor  <iant@google.com>

        Used signed infinities in VRP.
        * tree-vrp.c (uses_overflow_infinity): New static function.
        (supports_overflow_infinity): New static function.
        (make_overflow_infinity): New static function.
        (negative_overflow_infinity): New static function.
        (positive_overflow_infinity): New static function.
        (is_negative_overflow_infinity): New static function.
        (is_positive_overflow_infinity): New static function.
        (is_overflow_infinity): New static function.
        (overflow_infinity_range_p): New static function.
        (compare_values_warnv): New function split out of compare_values.
        (compare_value): Call it.
        (set_value_range_to_nonnegative): Add overflow_infinity
        parameter.  Change caller.
        (vrp_expr_computes_nonnegative): Add strict_overflow_p parameter.
        Change callers.
        (vrp_expr_computes_nonzero): Likewise.
        (compare_ranges, compare_range_with_value): Likewise.
        (compare_name_with_value, compare_names): Likewise.
        (vrp_evaluate_conditional): Likewise.
        (set_value_range): Handle infinity
        (vrp_operand_equal_p, operand_less_p): Likewise.
        (extract_range_from_assert): Likewise.
        (vrp_int_const_binop): Likewise.
        (extract_range_from_binary_expr): Likewise.
        (extract_range_from_unary_expr): Likewise.
        (extract_range_from_comparison): Likewise.
        (extract_range_from_expr): Likewise.
        (dump_value_range): Likewise.
        (vrp_visit_cond_stmt, vrp_visit_phi_node): Likewise.
        (test_for_singularity): Likewise.
        (vrp_int_const_binop): Remove inline qualifier.
        (adjust_range_with_scev): Add comment.
        * tree-flow.h (vrp_evaluate_conditional): Update declaration.

2007-03-02  Diego Novillo  <dnovillo@redhat.com>

        * tree-ssa-structalias.c (could_have_pointers): Tidy.
        (get_constraint_for): Likewise.
        (do_structure_copy): Likewise.
        (find_func_aliases): Fix references to MODIFY_EXPR.
        (intra_create_variable_infos): Tidy.
        * tree-ssa-operands.c (add_virtual_operand): Add argument
        IS_CALL_SITE.
        When adding members of alias sets, if IS_CALL_SITE is true and
        the symbol is not call-clobbered, skip it.
        Adjust all callers.

2007-03-02  Eric Botcazou  <ebotcazou@adacore.com>

        * config/alpha/alpha.c (alpha_gp_save_rtx): Insert the insns at the
        entry by means of emit_insn_at_entry.

2007-03-02  Richard Henderson  <rth@redhat.com>

        * expr.h (promoted_input_arg): Remove decl.
        * function.c (promoted_input_arg): Merge into ...
        * combine.c (setup_incoming_promotions): ... only caller.
        Rearrange to avoid double loop.

2007-03-02  Ben Elliston  <bje@au.ibm.com>
            Peter Bergner  <bergner@vnet.ibm.com>
            Janis Johnson  <janis187@us.ibm.com>

        * config/rs6000/dfp.md: New file.
        * config/rs6000/rs6000.md: Include dfp.md.
        (add<mode>3_internal1): Disable for DECIMAL_FLOAT_MODE_P operands.
        * config/rs6000/rs6000.c (rs6000_hard_regno_mode_ok): Handle DDmode
        and TDmode decimal float modes in FP registers.
        (num_insns_constant): Likewise.
        (rs6000_legitimate_offset_address_p): Likewise.
        (rs6000_legitimize_address): Likewise.
        (rs6000_legitimize_reload_address): Likewise.
        (rs6000_legitimate_address): Likewise.
        (rs6000_emit_move): Likewise.
        (function_arg_boundary): Likewise.
        (function_arg_advance): Likewise.
        (rs6000_darwin64_record_arg_recurse): Likewise.
        (function_arg): Likewise.
        (rs6000_gimplify_va_arg): Likewise.
        (rs6000_split_multireg_move): Likewise.
        (rs6000_output_function_epilogue): Likewise.
        (rs6000_output_function_epilogue): Likewise.
        (rs6000_register_move_cost): Likewise.
        (rs6000_function_value): Likewise.
        (rs6000_libcall_value): Likewise.

2007-03-02  Richard Sandiford  <richard@codesourcery.com>

        * config/t-vxworks (LIMITS_H_TEST): Define to true for VxWorks.

2007-03-02  Richard Sandiford  <richard@codesourcery.com>

        * config/t-vxworks (LIBGCC2_INCLUDES): Pass -nostdinc.
        Use $MULTIDIR to choose between the kernel and RTP headers,
        and use $WIND_BASE and $WIND_USR to locate them.

2007-03-02  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (override_options): Put initialization of
        ix86_tune_mask and ix86_arch_mask to the correct place.

2007-03-02  Uros Bizjak  <ubizjak@gmail.com>
            Michael Meissner  <michael.meissner@amd.com>

        PR target/31019
        * config/i386/i386.h (TUNEMASK): Redefine to use ix86_tune_mask.
        (ARCHMASK): Define.
        (TARGET_CMOVE): Use ARCHMASK.
        (TARGET_CMPXCHG): Ditto.
        (TARGET_CMPXCHG8B): Ditto.
        (TARGET_XADD): Ditto.
        (TARGET_BSWAP): Ditto.
        * config/i386/i386.c (ix86_tune_mask): New global variable.
        (ix86_arch_mask): Ditto.
        (override_options): Initialize ix86_tune_mask and
        ix86_arch_mask. Use ARCHMASK to clear MASK_NO_FANCY_MATH_387 in
        target_flags.

2007-03-02  Ben Elliston  <bje@au.ibm.com>

        PR 30992
        * config/dfp-bit.c (DFP_TO_INT): Initialise qval with "1.".

2007-03-02  Joseph Myers  <joseph@codesourcery.com>

        * target.h (init_dwarf_reg_sizes_extra): New target hook.
        * target-def.h (TARGET_INIT_DWARF_REG_SIZES_EXTRA): New default.
        * doc/tm.texi (TARGET_INIT_DWARF_REG_SIZES_EXTRA): Document.
        * dwarf2out.c (expand_builtin_init_dwarf_reg_sizes): Call this
        hook.
        * config/rs6000/rs6000.c (TARGET_INIT_DWARF_REG_SIZES_EXTRA,
        rs6000_init_dwarf_reg_sizes_extra): New.
        * config/rs6000/linux-unwind.h (ppc_fallback_frame_state): Support
        SPE register high parts.

2007-03-01  Brooks Moses  <brooks.moses@codesourcery.com>

        * Makefile.in: Add install-pdf target as
        copied from automake v1.10 rules.
        * configure.ac: Add install-pdf to target list.
        * configure: Regenerate.

2007-03-01  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.c (arm_legitimate_index_p): Limit iWMMXt addressing
        modes to LDRD for DImode.
        (output_move_double): Fixup out of range ldrd/strd.
        (vfp_secondary_reload_class): Rename...
        (coproc_secondary_reload_class): ... to this.  Add wb argument.
        * config/arm/arm.h (SECONDARY_OUTPUT_RELOAD_CLASS): Use
        coproc_secondary_reload_class for CLASS_IWMMXT.
        (SECONDARY_INPUT_RELOAD_CLASS): Ditto.
        * arm-protos.h (coproc_secondary_reload_class): Update prototype.

2007-03-01  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-ssa-loop-prefetch.c (determine_unroll_factor):  Bound the unroll
        factor by the estimated number of iterations.
        (loop_prefetch_arrays): Do not prefetch in loops that iterate less than
        prefetch latency.

        * config/i386/driver-i386.c (describe_cache, detect_caches_amd,
        decode_caches_intel, detect_caches_intel): New functions.
        (host_detect_local_cpu): Use detect_caches_amd and
        detect_caches_intel.

2007-03-01  Richard Henderson  <rth@redhat.com>

        * expr.c (emit_move_complex_push): Export.
        (emit_move_complex_parts): Split out from ...
        (emit_move_complex): ... here.
        * expr.h (emit_move_complex_push, emit_move_complex_parts): Declare.
        * config/i386/i386.md (movcdi): New.

2007-03-01  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (ix86_modes_tieable_p): Fix typo, use also
        size of mode1 to check for tieable modes in MMX case.

2007-03-01  Richard Sandiford  <richard@codesourcery.com>

        * Makefile.in (rtlanal.o): Depend on tree.h.
        * rtl.h (offset_within_section_p, split_const): Declare.
        * rtlanal.c: Include tree.h.
        (offset_within_block_p): New function, taken from
        mips_offset_within_object_p.
        (split_const): New function, taken from mips_split_const.
        * config/m68k/m68k-protos.h (m68k_illegitimate_symbolic_constant_p):
        Declare.
        * config/m68k/m68k.h (M68K_OFFSETS_MUST_BE_WITHIN_SECTIONS_P): Define.
        (CONSTANT_ADDRESS_P): Only accept legitimate constants.
        (LEGITIMATE_CONSTANT_P): Check m68k_illegitimate_symbolic_constant_p.
        * config/m68k/m68k.c (TARGET_CANNOT_FORCE_CONST_MEM): Define.
        (m68k_illegitimate_symbolic_constant_p): New function.
        * config/m68k/m68k.md (movsi): Remove misleading predicates.
        If M68K_OFFSETS_MUST_BE_WITHIN_SECTIONS_P and the source is a
        symbolic constant that might be outside the symbol's section,
        move the symbol first and then add the offset.
        * config/m68k/uclinux.h (M68K_OFFSETS_MUST_BE_WITHIN_SECTIONS_P):
        Override.
        * config/mips/mips.c (mips_split_const): Delete.
        (mips_offset_within_object_p): Delete.
        (mips_symbolic_constant_p): Use offset_within_section_p and
        split_const instead of mips_offset_within_object_p and
        mips_split_const.
        (mips_cannot_force_const_mem, mips_const_insns, mips_unspec_address)
        (mips_legitimize_const_move, print_operand_reloc)
        (mips_dangerous_for_la25_p): Use split_const instead of
        mips_split_const.

2007-02-28  Eric Christopher  <echristo@apple.com>

        * Makefile.in (install-include-dir): Don't rm -rf include.

2007-02-28  Richard Guenther  <rguenther@suse.de>

        PR middle-end/30364
        * fold-const.c (fold_binary): Do not associate expressions
        with more than one variable for integer types that do not wrap.

2007-02-28  Sandra Loosemore  <sandra@codesourcery.com>

        * builtins.c (fold_builtin_call_list, fold_builtin_call_valist):
        Delete, and replace with...
        (fold_builtin_call_array): This.  Update callers to use it.
        * fold-const.c (fold_build_call_list): Delete, and replace with...
        (fold_build_call_array): This.
        (fold_build_call_list_initializer): Delete, and replace with...
        (fold_build_call_array_initializer): This.
        * tree.h: Update declarations to reflect above changes.

        * c-typeck.c (build_function_call): Store converted arguments
        in a stack-allocated array instead of building a list.
        (convert_arguments): Store arguments in the array passed in as an
        argument, and return the actual number of arguments.
        * c-format.c: (check_function_format): Pass arguments in an
        array instead of a list.
        * c-common.c (check_function_nonnull): Likewise.
        (check_function_sentinel): Likewise.
        (check_function_arguments): Likewise.
        * c-common.h: Update declarations to reflect above changes.

2007-02-28  Jan Hubicka  <jh@suse.cz>

        * predict.def (PRED_TREE_EARLY_RETURN, PRED_CONST_RETURN,
        PRED_NEGATIVE_RETURN): Update outcomes.

2007-02-28  Bernd Schmidt  <bernd.schmidt@analog.com>

        * calls.c (emit_library_call_value_1): Handle partial registers
        correctly when building up CALL_INSN_FUNCTION_USAGE.

2007-02-27  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa/predicates.md (move_src_operand): Allow zero for mode.
        * pa/pa.md: Fix constraints for zero CONST_DOUBLE in 64-bit DFmode
        move pattern.

2007-02-27  Uros Bizjak  <ubizjak@gmail.com>

        PR target/30970
        * config/i386/sse.md (*mov<mode>_internal, *movv4sf_internal,
        *movv2df_internal): Enable pattern only for valid operand
        combinations.
        * config/i386/i386.c (ix86_modes_tieable_p): For SSE registers,
        tie only 128bit modes. For MMX registers, tie only 64bit modes.

2007-02-27  Mike Stump  <mrs@apple.com>

        * config/darwin-crt3.c: Avoid compilation when compiling for a
        kext multilib.

2007-02-27  Joseph Myers  <joseph@codesourcery.com>

        * Makefile.in (PREPROCESSOR_DEFINES, test-protoize-simple): Define
        FIXED_INCLUDE_DIR.
        (stmp-int-hdrs, stmp-fixinc, install-headers): Use include-fixed
        for fixed headers and limits.h.
        (install-include-dir, install-headers-tar, install-headers-cpio,
        install-headers-cp, real-install-headers-tar,
        real-install-headers-cpio, real-install-headers-cp): Handle
        include-fixed as well as include.
        (install-mkheaders): Don't install files that go only in include
        not include-fixed.
        * cppdefault.c (cpp_include_defaults): Separate FIXED_INCLUDE_DIR
        from GCC_INCLUDE_DIR.
        * gcc.c (process_command): Remove special -BstageN/ handling.
        (do_spec_1): Add include-fixed directories.

2007-02-27  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config/bfin/t-bfin-elf (LIB1ASMFUNCS): Add _umulsi3_highpart and
        _smulsi3_highpart.
        * config/bfin/lib1funcs.asm (___umulsi3_highpart, ___smulsi3_highpart):
        New functions.
        * config/bfin/bfin.md (smulsi3_highpart, umulsi3_highpart): New
        patterns.

2007-02-27  Mark Mitchell  <mark@codesourcery.com>

        * c-common.c (get_priority): Add check for
        SUPPORTS_INIT_PRIORITY.

2007-02-27  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config/bfin/bfin.md (doloop_end): FAIL if counter reg isn't SImode.

        * config/bfin/bfin.c: Include "cfglayout.h".
        (MAX_LSETUP_DISTANCE): New macro.
        (struct loop_info): New members incoming, incoming_src and
        incoming_dest.  Delete member predecessor.
        (length_for_loop): New function.
        (bfin_optimize_loop): Handle more different loop structures.
        (bfin_discover_loop): Rework detection of predecessor blocks by
        examining incoming edges.
        (bfin_discover_loops, bfin_free_loops): New functions, broken out of
        bfin_reorg_loops.
        (bfin_reorder_loops): New function.
        (bfin_reorg_loops): Use these three new functions.

        * config/bfin/bfin.h (enum reg_class, REG_CLASS_NAMES,
        REG_CLASS_CONTENTS): Add D0REGS through D7REGS.
        (CONSTRAINT_LEN): Add entry for 'q'.
        (REG_CLASS_FROM_CONSTRAINT): Renamed from REG_CLASS_FROM_LETTER.
        Add 'q' constraints.
        (REGNO_REG_CLASS): For R0 through R7, return corresponding regclass.
        (CLASS_LIKELY_SPILLED_P): True for R0, R1 and R2.

        * config/bfin/bfin.md (add_with_carry): New pattern.
        (s_or_u, su_optab, su_modifier): New code macros/attrs.
        (<su_optab>hisi_ll, <su_optab>hisi_lh, <su_optab>hisi_hl,
        <su_optab>hisi_hh): Renamed from mulhisi_xx patterns; macroized to
        support unsigned multiplies too.  Removed incorrect commutativity from
        operand 1 constraint where appropriate.
        (usmulhisi_ull, usmulhisi_ulh, usmulhisi_uhl, usmulhisi_uhh): New
        patterns.
        (<su_optab>hisi_ll_lh, <su_optab>hisi_ll_hl, <su_optab>hisi_ll_hh,
        <su_optab>hisi_lh_hl, <su_optab>hisi_lh_hh, <su_optab>hisi_hl_hh):
        New patterns.
        (usmulhisi_ll_lul, usmulhisi_ll_luh, usmulhisi_ll_hul,
        usmulhisi_ll_huh, usmulhisi_lh_lul, usmulhisi_lh_luh, usmulhisi_lh_hul,
        usmulhisi_lh_huh, usmulhisi_hl_lul, usmulhisi_hl_luh, usmulhisi_hl_hul,
        usmulhisi_hl_huh, usmulhisi_hh_lul, usmulhisi_hh_luh, usmulhisi_hh_hul,
        usmulhisi_hh_huh): New patterns.

        * config/bfin/bfin.md (ssashiftv2hi3, ssashifthi3, lshiftv2hi3,
        lshifthi3): Fix output template to use half reg for operand 2.

        * config/bfin/bfin.c (bfin_output_mi_thunk): Use R3 as scratch reg
        instead of R2.

        * config/bfin/bfin.md (rotl16, rotlsi3, rotrsi3): New patterns.

2007-02-27  Andreas Schwab  <schwab@suse.de>

        * Makefile.in (TEXI_GCCINSTALL_FILES): Add gcc-common.texi.

2007-02-27  Jan Hubicka  <jh@suse.cz>

        * predict.c (last_basic_block_p): Remove.
        (tree_estimate_probability): Update return heuristic for commonized
        return blocks.

2007-02-26  Brooks Moses  <brooks.moses@codesourcery.com>

        * Makefile.in (TEXI_GCCINSTALL_FILES): Add gcc-vers.texi dependency.

2007-02-26  Brooks Moses  <brooks.moses@codesourcery.com>

        * doc/include/gcc-common.texi (versionsubtitle): New macro.
        * doc/cpp.texi: Standardize title page.
        * doc/cppinternals.texi: Likewise.
        * doc/gcc.texi: Standardize title page, remove version number
        from copyright page.
        * doc/gccint.texi: Likewise.
        * doc/install.texi: Standardize title page, add table of
        contents.

2007-02-26  Jan Hubicka  <jh@suse.cz>

        * predict.def: Set outcomes according to more recent results.
        (PRED_LOOP_CONDITION, PRED_LOOP_PRECONDITIONING, PRED_LOOP_HEADER):
        Remove dead predictors.
        * predict.c (return_prediction): Fix pasto.

2007-02-27  Bernd Schmidt  <bernd.schmidt@analog.com>

        * loop-iv.c (simplify_using_initial_values): Fix oversight in previous
        change; avoid a memory leak when returning early.

2007-02-26  Mark Mitchell  <mark@codesourcery.com>

        * c-decl.c (static_ctors): Move to c-common.c.
        (static_dtors): Likewise.
        (finish_function): Use c_record_cdtor_fn.
        (build_cdtor): Move to c-common.c.
        (c_write_global_declarations): Use c_build_cdtor_fns.
        * c-common.h (static_ctors): Declare.
        (static_dtors): Likewise.
        (c_record_cdtor_fn): Likewise.
        (c_build_cdtor_fns): Likewise.
        * c-common.c (static_ctors): New variable.
        (static_dtors): Likewise.
        (c_record_cdtor_fn): New function.
        (build_cdtor): Move from c-decl.c
        (c_build_cdtor_fns): New function.

        * output.h (assemble_addr_to_section): Declare.
        (get_cdtor_priority_section): Likewise.
        * varasm.c (assemble_addr_to_section): New function.
        (get_cdtor_priority_section): Likewise.
        (default_named_section_asm_out_destructor): Use them.
        (destor_dtor_section_asm_out_destructor): Likewise.
        (default_named_section_asm_out_constructor): Likewise.
        (default_ctor_section_asm_out_constructor): Likewise.
        * config.gcc (*-*-vxworks*): Include vxworks.o.
        * config/t-vxworks (vxworks.o): New target.
        * config/vxworks.h (ALWAYS_NUMBER_CTORS_SECTIONS): Remove.
        (TARGET_ASM_CONSTRUCTOR): Define.
        (TARGET_ASM_DESTRUCTOR): Likewise.
        (vxworks_asm_out_constructor): Declare.
        (vxworks_asm_out_destructor): Likewise.

        * c-common.c (get_priority): Check that we have not just an
        INTEGER_CST, but an integer constant with integeral type.

2007-02-25  Uros Bizjak  <ubizjak@gmail.com>

        PR tree-optimization/30938
        * tree-vect-transform.c (vectorizable_call): Fix off-by-one error:
        use &dt[nargs-1] instead of &dt[nargs] in the call to
        vect_is_simple_use().

2007-02-25  Ulrich Weigand  <uweigand@de.ibm.com>

        * reload.c (find_reloads_address_1): Handle PLUS expressions resulting
        from register elimination as PRE_MODIFY / POST_MODIFY increments.
        Do not attempt to handle MEM inside auto-inc expressions.
        * reload1.c (eliminate_regs_1): Do not attempt to handle elimination
        of a register modified by an auto-inc expression.  However, do handle
        elimination of a register used as PRE_MODIFY / POST_MODIFY increment.
        (elimination_effects): Prohibit elimination of a register modified
        by an auto-inc expression.  Disable register elimination rules whose
        target register is modified by an auto-inc expression with variable
        increment.

2007-02-25  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-ssa-loop-niter.c (compute_estimated_nb_iterations): Fix
        off-by-one error.
        (array_at_struct_end_p): New function.
        (idx_infer_loop_bounds): Use it.
        (estimate_numbers_of_iterations_loop): Export.
        * predict.c (predict_loops): Use estimated_loop_iterations_int.
        Do not use PRED_LOOP_EXIT on exits predicted by # of iterations.
        (tree_estimate_probability): Call record_loop_exits.
        * tree-data-ref.c (get_number_of_iters_for_loop): Replaced by ...
        (estimated_loop_iterations, estimated_loop_iterations_int,
        estimated_loop_iterations_tree): New functions.
        (analyze_siv_subscript_cst_affine,
        compute_overlap_steps_for_affine_1_2,
        analyze_subscript_affine_affine): Use estimated_loop_iterations_int.
        (analyze_miv_subscript): Use estimated_loop_iterations_tree.
        * predict.def (PRED_LOOP_ITERATIONS): Update comment.
        (PRED_LOOP_ITERATIONS_GUESSED): New.
        * cfgloop.c (record_loop_exits): Do nothing if there are no loops.
        * cfgloop.h (estimate_numbers_of_iterations_loop,
        estimated_loop_iterations_int): Declare.

2007-02-25  Mark Mitchell  <mark@codesourcery.com>

        * doc/extend.texi: Document optional priority argument to
        constructors and destructors.
        * tree.c (init_priority_for_decl): Adjust GTY markers.
        (init_ttree): Use priority-info hash functions for
        init_priority_for_decl.
        (tree_map_eq): Rename to ...
        (tree_map_base_eq): ... this.
        (tree_map_marked_p): Rename to ...
        (tree_map_base_marked_p): ... this.
        (tree_map_base_hash): New function.
        (decl_init_priority_lookup): Rework.
        (decl_fini_priority_lookup): New function.
        (decl_priority_info): New function.
        (decl_init_priority_insert): Use it.
        (decl_fini_priority_insert): Likewise.
        (decl_restrict_base_lookup): Adjust for refactoring of tree_map
        hierarchy.
        (decl_restrict_base_insert): Likewise.
        (decl_debug_expr_insert): Likewise.
        (decl_value_expr_lookup): Likewise.
        (decl_value_expr_insert): Likewise.
        * tree.h (priority_type): New type.
        (decl_init_priority_lookup): Use priority_type.
        (decl_fini_priority_lookup): New function.
        (decl_init_priority_insert): Use priority_type.
        (decl_fini_priority_insert): New function.
        (DECL_HAS_INIT_PRIORITY): Tweak comments.
        (DECL_INIT_PRIORITY): Likewise.
        (SET_DECL_INIT_PRIORITY): Add comment.
        (DECL_FINI_PRIORITY): New macro.
        (SET_DECL_FINI_PRIORITY): Likewise.
        (DEFAULT_INIT_PRIORITY): Document.
        (MAX_INIT_PRIORITY): Likewise.
        (MAX_RESERVED_INIT_PRIORITY): Likewise.
        (tree_map_base): New type.
        (tree_map_base_eq): New function.
        (tree_map_base_hash): Likewise.
        (tree_map_base_marked_p): Likewise.
        (tree_map): Inherit from tree_map_base.
        (tree_map_eq): Make it a macro.
        (tree_map_marked_p): Likewise.
        (tree_int_map): Inherit from tree_map_base.
        (tree_int_map_eq): Make it a macro.
        (tree_int_map_hash): Likewise.
        (tree_int_map_marked_p): Likewise.
        (tree_priority_map): New type.
        (tree_priority_map_eq): New macro.
        (tree_priority_map_hash): Likewise.
        (tree_priority_map_marked_p): Likewise.
        * varasm.c (emults_decl): Adjust for refactoring of tree_map
        hierarchy.
        (emutls_common_1): Likewise.
        * lambda-code.c (replace_uses_equiv_to_x_with_y): Likewise.
        * tree-ssa-structalias.c (heapvar_lookup): Adjust for refactoring
        of tree_map hierarchy.
        * tree-cfg.c (move_stmt_r): Likewise.
        (new_label_mapper): Likewise.
        * c-tree.h (c_expand_body): Move to ...
        * c-common.h (c_expand_body): ... here.
        * c-decl.c (c_expand_body): Move to ...
        * c-common.c (c_expand_body): ... here.
        (c_common_attribute_table): Allow 1 argument for the constructor
        and destructor attributes.
        (get_priority): New function.
        (handle_constructor_attribute): Set DECL_INIT_PRIORITY.
        (handle_destructor_attribute): Set DECL_FINI_PRIORITY.

2007-02-24  Jan Hubicka  <jh@suse.cz>

        PR middle-end/30509
        * tree-inline.c (copy_bb): Produce exact copy of EH info when copying for inlining.

2007-02-24  Uros Bizjak  <ubizjak@gmail.com>
            Jan Hubicka  <jh@suse.cz>

        PR target/30778
        * i386.c (counter_mode): New function.
        (expand_set_or_movmem_via_loop): Use it.
        (expand_movmem_epilogue): Likewise; fix pasto.
        (ix86_expand_movmem): Do emit guard even for constant counts.
        (ix86_expand_setmem): Likewise.

2007-02-25  Nick Clifton  <nickc@redhat.com>

        * config/frv/frv.h (ASM_OUTPUT_CASE_LABEL): Delete.
        (JUMP_TABLES_IN_TEXT_SECTION): Define.

2007-02-24  Uros Bizjak  <ubizjak@gmail.com>

        PR target/30770
        * config/i386/i386.md (expand_movmem_epilogue): Fix typo, mask
        count argument with 0x10, not with 0x16.
        (expand_setmem_epilogue): Ditto.

2007-02-24  Mike Stump  <mrs@apple.com>

        * config/i386/i386.c (output_pic_addr_const): Stubify optimized
        symbols.

2007-02-24  Richard Guenther  <rguenther@suse.de>

        PR middle-end/30951
        * fold-const.c (fold_binary): Fold x +- CST op x for
        EQ_EXPR and NE_EXPR.

2007-02-24  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa.md (muldi3): Force subregs to registers in 64-bit expander.

2007-02-24  Jan Hubicka  <jh@suse.cz>

        * cgraphunit.c (decide_is_function_needed): Honor
        -fkeep-inline-functions.

2007-02-24  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (fold_builtin_modf): New.
        (fold_builtin_2): Use it.

2007-02-24  Bernd Schmidt  <bernd.schmidt@analog.com>

        * loop-iv.c (implies_p): Detect additional cases where A implies B.
        (determine_max_iter): Take additional LOOP arg; all callers changed.
        Lose broken logic dealing with PLUS.  Try to limit the upper bound by
        one using simplifications.
        (simplify_using_initial_values): Return if the expression becomes
        invalid due to altered regs.

2007-02-23  DJ Delorie  <dj@redhat.com>

        * doc/tm.h (BIGGEST_ALIGNMENT): Clarify the purpose of this macro.

2007-02-23  Mike Stump  <mrs@apple.com>

        * tlink.c (scan_linker_output): Parse linker messages from
        darwin9's linker better.

2007-02-23  Steve Ellcey  <sje@cup.hp.com>

        PR debug/29614
        * varpool.c (varpool_assemble_pending_decls):  Set
        varpool_last_needed_node to null.

2007-02-23  DJ Delorie  <dj@redhat.com>

        * config/i386/i386.c (ix86_data_alignment): Don't specify an
        alignment bigger than the object file can handle.

2007-02-23  Uros Bizjak  <ubizjak@gmail.com>

        PR target/30825
        * config/i386/i386.md (*movdi_1_rex64, zero_extendsidi2_32,
        zero_extendsidi2_rex64): Penalize MMX register<->memory moves.
        (*movsf_1): Penalize MMX moves.

2007-02-23  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config/bfin/bfin.md (doloop_end): Fail for loops that can iterate
        2^32-1 or more times unless flag_unsafe_loop_optimizations.

        * loop-iv.c (determine_max_iter): Moved in front of its sole user.

2007-02-23  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (fold_builtin_logb, fold_builtin_significand): New.
        (fold_builtin_1): Use them.
        * fold-const.c (tree_expr_nonnegative_warnv_p): Handle
        BUILT_IN_SIGNIFICAND.

2007-02-23  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.c (bdesc_1arg): Initialize
        IX86_BUILTIN_MOVSHDUP and IX86_BUILTIN_MOVSLDUP with
        "__builtin_ia32_movshdup" and "__builtin_ia32_movsldup".
        (ix86_init_mmx_sse_builtins): Remove IX86_BUILTIN_MOVSHDUP
        and IX86_BUILTIN_MOVSLDUP.

2007-02-22  Paolo Bonzini  <bonzini@gnu.org>

        PR rtl-optimization/30841
        * fwprop.c (propagate_rtx_1): Accept a VOIDmode replacement address.

2007-02-22  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (fold_builtin_frexp): New.
        (fold_builtin_2): Use it.

2007-02-22  Mark Mitchell  <mark@codesourcery.com>

        * doc/invoke.texi (Spec Files): Document getenv spec function.

        * gcc.c (getenv_spec_function): New function.
        (static_spec_functions): Add it.
        * config/vxworks.h (VXWORKS_TARGET_DIR): Remove.
        (VXWORKS_ADDITIONAL_CPP_SPEC): Use getenv to find the VxWorks
        header files.

2007-02-22  Michael Matz  <matz@suse.de

        PR c++/29433
        * dwarf2out.c (add_AT_string): Call ggc_strdup once per string.
        (type_tag): Use lang_hooks.dwarf_name instead of DECL_NAME.

2007-02-22  Ian Lance Taylor  <iant@google.com>

        PR debug/30898
        * dwarf2out.c (concatn_mem_loc_descriptor): New static function.
        (mem_loc_descriptor): Call it.

2007-02-22  Zdenek Dvorak  <dvorakz@suse.cz>
            Ira Rosen  <irar@il.ibm.com>

        * tree-data-ref.c (ptr_ptr_may_alias_p): Take alias sets into account.

2007-02-22  Ira Rosen  <irar@il.ibm.com>

        PR tree-optimization/30843
        * tree-vect-transform.c (vect_transform_loop): Remove strided scalar
        stores only after all the group is vectorized.

2007-02-22  Dorit Nuzman  <dorit@il.ibm.com>

        PR tree-optimization/30858
        * tree-vectorizer.c (vect_is_simple_reduction): Check that the stmts
        in the reduction cycle have a single use in the loop.
        * tree-vectorizer.h (relevant): Add documentation.

2007-02-20  Mike Stump  <mrs@apple.com>

        * configure.ac (powerpc*-*-darwin*): #include <sys/cdefs.h>.
        * configure: Regenerate.

2007-02-21  Trevor Smigiel  <trevor_smigiel@playstation.sony.com>

        Change the defaults of some parameters and options.
        * config/spu/spu-protos.h (spu_optimization_options): Declare.
        * config/spu/spu.c (spu_optimization_options): Add.
        (spu_override_options): Change params in spu_optimization_options.
        * config/spu/spu.h (OPTIMIZATION_OPTIONS): Define.

        Register 127 is only 16 byte aligned when used as a frame pointer.
        * config/spu/spu-protos.h (spu_init_expanders): Declare.
        * config/spu/spu.c (spu_expand_prologue): Set REGNO_POINTER_ALIGN for
        HARD_FRAME_POINTER_REGNUM.
        (spu_legitimate_address):  Use regno_aligned_for_reload.
        (regno_aligned_for_load):  HARD_FRAME_POINTER_REGNUM is only 16 byte
        aligned when frame_pointer_needed is true.
        (spu_init_expanders): New.  Set alignment of HARD_FRAME_POINTER_REGNUM
        to 8 bits.
        * config/spu/spu.h (INIT_EXPANDERS): Define.

        Make sure shift and rotate instructions have valid immediate operands.
        * config/spu/predicates.md (spu_shift_operand): Remove.
        * config/spu/spu.c (print_operand): Add [efghEFGH] modifiers.
        * config/spu/constraints.md (W, O): Extend range.
        * config/spu/spu.md (umask, nmask): Define.
        (ashl<mode>3, ashldi3, ashlti3_imm, shlqbybi_ti, shlqbi_ti, shlqby_ti,
        lshr<mode>3, rotm_<mode>, lshr<mode>3_imm, rotqmbybi_<mode>,
        rotqmbi_<mode>, rotqmby_<mode>, ashr<mode>3, rotma_<mode>,
        rotl<mode>3, rotlti3, rotqbybi_ti, rotqby_ti, rotqbi_ti): Use
        spu_nonmem_operand instead of spu_shift_operands.  Use new modifiers.
        (lshr<mode>3_reg):  Fix rtl description.

        Make sure mulhisi immediate operands are valid.
        * config/spu/predicates.md (imm_K_operand): Add.
        * config/spu/spu.md (mulhisi3_imm, umulhisi3_imm): Use imm_K_operand.

        Generate constants using fsmbi and andi.
        * config/spu/spu.c (enum immediate_class): Add IC_FSMBI2.
        (print_operand, spu_split_immediate, classify_immediate,
        fsmbi_const_p): Handle IC_FSMBI2.

        Correctly handle a CONST_VECTOR containing symbols.
        * config/spu/spu.c (print_operand): Handle HIGH correctly.
        (spu_split_immediate): Split CONST_VECTORs with -mlarge-mem.
        (immediate_load_p): Allow symbols that use 2 instructions to create.
        (classify_immediate, spu_builtin_splats):  Don't accept a CONST_VECTOR
        with symbols when flag_pic is set.
        (const_vector_immediate_p): New.
        (logical_immediate_p, iohl_immediate_p, arith_immediate_p): Don't
        accept a CONST_VECTOR with symbols.
        (spu_legitimate_constant_p): Use const_vector_immediate_p.  Don't
        accept a CONST_VECTOR with symbols when flag_pic is set.  Handle HIGH
        correctly.
        * config/spu/spu.md (high, low): Delete.
        (low_<mode>): Define.

        Remove INTRmode and INTR_REGNUM, which didn't work.
        * config/spu/spu.c (spu_conditional_register_usage): Remove reference
        of INTR_REGNUM.
        * config/spu/spu-builtins.md (spu_idisable, spu_ienable, set_intr,
        set_intr_pic, set_intr_cc, set_intr_cc_pic, set_intr_return, unnamed
        peephole2 pattern): Don't use INTR or 131.
        (movintrcc): Delete.
        * config/spu/spu.h (FIRST_PSEUDO_REGISTER, FIXED_REGISTERS,
        CALL_USED_REGISTERS, REGISTER_NAMES, INTR_REGNUM): Remove INTR_REGNUM.
        * config/spu/spu.md (UNSPEC_IDISABLE, UNSPEC_IENABLE): Remove.
        (UNSPEC_SET_INTR): Add.
        * config/spu/spu-modes.def (INTR): Remove.

        More accurate warnings about run-time relocations.
        * config/spu/spu.c (reloc_diagnostic): Test in_section.

        Correctly warn about immediate arguments to specific intrinsics.
        * config/spu/spu.c (spu_check_builtin_parm): Handle CONST_VECTORs.
        (spu_expand_builtin_1): Call spu_check_builtin_parm before checking
        the instruction predicate.

        Fix tree check errors with latest update.
        * config/spu/spu.c (expand_builtin_args, spu_expand_builtin_1): Use
        CALL_EXPR_ARG.
        (spu_expand_builtin): Use CALL_EXPR_FN.

        Add missing specific intrinsics.
        * config/spu/spu-builtins.def: Add si_bisled, si_bisledd and
        si_bislede.
        * config/spu/spu_internals.h: Ditto.

        Fix incorrect operand modifiers.
        * config/spu/spu-builtins.md (spu_mpy, spu_mpyu):  Remove use of %H.
        * config/spu/spu.md (xor<mode>3):  Change %S to %J.

        Optimize one case of zero_extend of a vec_select.
        * config/spu/spu.md (_vec_extractv8hi_ze):  Add.

        Accept any immediate for hbr.
        * config/spu/spu.md (hbr):  Change s constraints to i.

2007-02-21  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.c (thumb2_final_prescan_insn): Don't incrememnt
        condexec_count when skipping USE and CLOBBER.

2007-02-21  Nick Clifton  <nickc@redhat.com>

        * common.opt (Warray-bounds): Add Warning attribute.
        (Wstrict-overflow, Wstrict-overflow=, Wcoverage-mismatch):
        Likewise.
        (fsized-zeroes): Add Optimization attribute.
        (fsplit-wide-types, ftree-scev-cprop): Likewise.
        * c.opt (Wc++0x-compat): Add Warning attribute.

2007-02-21  Ulrich Weigand  <uweigand@de.ibm.com>

        PR middle-end/30761
        * reload1.c (eliminate_regs_in_insn): In the single_set special
        case, attempt to re-recognize the insn before falling back to
        having reload fix it up.

2007-02-20  Eric Christopher  <echristo@gmail.com>

        * config/frv/frv.c (frv_read_argument): Take a tree and int argument.
        Rewrite accordingly.
        (frv_read_iacc_argument): Ditto.
        (frv_expand_set_builtin): Take a call instead of arglist, update for
        above changes.
        (frv_expand_unop_builtin): Ditto.
        (frv_expand_binop_builtin): Ditto.
        (frv_expand_cut_builtin): Ditto.
        (frv_expand_binopimm_builtin): Ditto.
        (frv_expand_voidbinop_builtin): Ditto.
        (frv_expand_int_void2arg): Ditto.
        (frv_expand_prefetches): Ditto.
        (frv_expand_voidtriop_builtin): Ditto.
        (frv_expand_voidaccop_builtin): Ditto.
        (frv_expand_load_builtin): Ditto.
        (frv_expand_store_builtin): Ditto.
        (frv_expand_mdpackh_builtin): Ditto.
        (frv_expand_mclracc_builtin): Ditto.
        (frv_expand_mrdacc_builtin): Ditto.
        (frv_expand_mwtacc_builtin): Ditto.
        (frv_expand_builtin): Remove usage of CALL_EXPR_ARGS, update
        calls for above.

2007-02-20  Janis Johnson  <janis187@us.ibm.com>

        * doc/invoke.texi (RS/6000 and PowerPC Options): Add -mcmpb and -mdfp.
        * configure.ac (HAVE_GAS_CMPB): Check for assembler support of the
        cmpb instruction.
        (HAVE_GAS_DFP): Check for assembler support of decimal floating
        point instructions.
        * configure: Regenerate.
        * config.in: Regenerate.
        * config/rs6000/rs6000.opt (mcmpb, mdfp): New.
        * config/rs6000/rs6000.c (rs6000_override_options): Add CMPB and DFP
        masks to power6 and power6x and to POWERPC_MASKS.
        * config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): Define
        _ARCH_PWR6.
        * config/rs6000/rs6000.h: Check assembler support for CMPB and DFP.
        * config/rs6000/sysv4.opt (mprototype): Use variable, not mask.
        * config/rs6000/linux64.h (SUBSUBTARGET_OVERRIDE_OPTIONS):
        Access PROTOTYPE as variable, not mask.

2007-02-20  Steven Bosscher  <steven@gcc.gnu.org>

        * rtl.h (remove_reg_equal_equiv_notes): New prototype.
        * rtlanal.c (remove_reg_equal_equiv_notes): New function.
        * combine.c (adjust_for_new_dest): Use it.
        * postreload.c (reload_combine): Likewise.

2007-02-20  Steven Bosscher  <steven@gcc.gnu.org>

        * rtlanal.c (find_reg_equal_equiv_note): Do not find REG_EQ*
        notes on an insn with multiple sets, even if single_set returns
        non-NULL for that insn.

2007-02-20  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * fold-const.c (tree_expr_nonnegative_warnv_p): Handle scalb,
        scalbn and scalbln.

2007-02-20  Geoffrey Keating  <geoffk@apple.com>

        * config/darwin.h (LINK_SPEC): Default -mmacosx-version-min only
        if user didn't pass it.
        * config/i386/darwin.h (CC1_SPEC): Likewise.
        * config/rs6000/darwin.h (CC1_SPEC): Likewise.
        (DARWIN_MINVERSION_SPEC): Don't depend on user's setting of
        -mmacosx-version-min.

2007-02-20  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
            Uros Bizjak  <ubizjak@gmail.com>

        * optabs.h (enum optab_index): Add new OTI_scalb.
        (scalb_optab): Define corresponding macro.
        * optabs.c (init_optabs): Initialize scalb_optab.
        * genopinit.c (optabs): Implement scalb_optab using scalb?f3
        patterns.
        * builtins.c (expand_builtin_mathfn_2, expand_builtin): Handle
        BUILT_IN_SCALB{,F,L}, BUILT_IN_SCALBN{,F,L} and BUILT_IN_SCALBLN{,F,L}.
        (expand_builtin): Expand BUILT_IN_SCALB{,F,L}, BUILT_IN_SCALBN{,F,L}
        and BUILT_IN_SCALBLN{,F,L} using expand_builtin_mathfn_2 if
        flag_unsafe_math_optimizations is set.

        * config/i386/i386.md (scalbxf3, scalb<mode>3): New expanders
        to implement scalbf, scalb and scalbl built-ins as inline x87
        intrinsics.

2007-02-20  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
            DJ Delorie <dj@redhat.com>

        PR other/30824
        * diagnostic.c (diagnostic_count_diagnostic): Move -Werror logic to...
        (diagnostic_report_diagnostic): ... here, and turn them into real
        errors. If warnings are inhibited, no need to do anything.

2007-02-20  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (expm1xf2): Reorder insn sequence for
        better code generation.

2007-02-20  Ben Elliston  <bje@au.ibm.com>

        * config/m68hc11/m68hc11.h (OVERRIDE_OPTIONS): Remove extra ;.

2007-02-20  Kazu Hirata  <kazu@codesourcery.com>

        * config/alpha/alpha.c, config/alpha/alpha.md,
        config/alpha/lib1funcs.asm, config/alpha/vms-crt0-64.c,
        config/alpha/vms-psxcrt0-64.c, config/arc/arc.c,
        config/arc/arc.h, config/arm/arm.c, config/arm/arm.md,
        config/arm/lib1funcs.asm: Follow spelling conventions.

        * config/c4x/c4x.md, config/cris/cris.c, config/crx/crx.c,
        config/fr30/fr30.md, config/i386/i386.h,
        config/iq2000/iq2000.h, config/iq2000/predicates.md,
        config/pa/milli64.S, config/pa/pa.c, config/pa/pa.h,
        config/pa/pa.md, config/pa/pa32-regs.h, config/pa/pa64-regs.h,
        config/pdp11/pdp11.c, config/pdp11/pdp11.h,
        config/rs6000/altivec.md, config/rs6000/rs6000.c,
        config/s390/s390-modes.def, config/sparc/netbsd-elf.h,
        config/sparc/sparc.c, config/sparc/sparc.h,
        config/sparc/sparc.md, config/spu/constraints.md,
        config/spu/spu.c, config/stormy16/stormy16.md: Follow spelling
        conventions.

2007-02-20  Alan Modra  <amodra@bigpond.net.au>

        PR target/29943
        * varasm.c (use_blocks_for_decl_p): Return false for decls with
        alias attribute.

2007-02-19  Kazu Hirata  <kazu@codesourcery.com>

        * doc/invoke.texi (-ftree-lrs): Remove.

2007-02-19  Diego Novillo  <dnovillo@redhat.com>

        * tree-ssa-pre.c (create_value_expr_from): Initialize POOL to
        NULL.

2007-02-19  Lee Millward  <lee.millward@codesourcery.com>

        * config/ia64/ia64.c (ia64_expand_builtin): Use the
        new CALL_EXPR_FN macro for retrieving the function
        declaration of the input expression.

2007-02-19  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * c.opt (Waddress): New.
        * common.opt (Walways-true): Delete.
        (Wstring-literal-comparison): Delete.
        * doc/invoke.texi (Warning Options): Delete -Walways-true and
        -Wstring-literal-comparison. Add -Waddress.
        (Waddress): New.
        (Walways-true): Delete.
        (Wstring-literal-comparison): Delete.
        * doc/extend.texi (#pragma GCC diagnostic): Use -Wformat
        consistently instead of -Walways-true in example.
        * c-opts.c (c_common_handle_option): -Waddress is enabled by -Wall.
        * c-typeck.c (parser_build_binary_op): Replace
        -Wstring-literal-comparison and -Walways-true with -Waddress.
        * c-common.c (c_common_truthvalue_conversion): Replace -Walways-true
        with -Waddress.

2007-02-19  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-cfg.c (dump_function_to_file): Be prepared for functions
        without DECL_STRUCT_FUNCTION initialized.

2007-02-19  Eric Botcazou  <ebotcazou@adacore.com>

        * gimplify.c (gimplify_init_ctor_preeval_1): Detect potential overlap
        due to calls to functions taking pointers as parameters.

2007-02-19  Richard Henderson  <rth@redhat.com>

        PR debug/29558
        * var-tracking.c (track_expr_p): Disallow AGGREGATE_TYPE_P
        in memory.

2007-02-19  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.c (s390_call_saved_register_used,
        s390_function_ok_for_sibcall): Adjust the way CALL_EXPR arguments are
        accessed to the new scheme.

2007-02-19  Jan-Benedict Glaw  <jbglaw@lug-owl.de>

        * config/cris/cris.c (cris_movem_load_rest_p, cris_store_multiple_op_p)
        (cris_print_index, cris_print_operand, cris_print_operand_address)
 &n