2007-01-19 Basile Starynkevitch <basile@starynkevitch.net>

[official-gcc.git] / gcc / ChangeLog

2007-01-19  Basile Starynkevitch  <basile@starynkevitch.net>

        * doc/gty.texi (Options): Document the mark_hook option to
        GTY.
        * gcc/gengtype.c (write_types_data, write_func_for_structure,
        write_types, ggc_wtd, pch_wtd): Added skip_hooks to
        write_types_data, ggc_wtd, pch_wtd for mark_hook.
        (walk_type, write_func_for_structure): Generate the mark_hook if
        needed.

2007-01-19  Jan Hubicka  <jh@suse.cz>

        * ipa-inline.c (cgraph_decide_inlining_incrementally): Instead of 'early' argument
        take inlining mode argument specifying whether to inline for size/speeed or all
        functions; add support for flattening; improve dumpting.
        (cgraph_early_inlining): Update call of decide_inlining_incrementally.

2007-01-19  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR c++/17947
        * toplev.c (warn_deprecated_use): Use %qD instead of %qs to print
        the name of the declared identifier.
                
2007-01-19  Dirk Mueller  <dmueller@suse.de>

        * config/i386.h (CONDITIONAL_REGISTER_USAGE): Store
        result of PIC_OFFSET_TABLE_REGNUM in temporary variable to avoid
        duplicate evaluation.

2007-01-19  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (acos<mode>2): Rename from acossf2 and acosdf2.
        Macroize expander using X87MODEF12 mode macro.  Extend operand 1
        to XFMode, use acosxf2 and truncate result to requested mode.
        Use SSE_FLOAT_MODE_P to disable patterns for SSE math.
        (asin<mode>2): Similarly, with asin expanders.
        (*fscalexf4_i387): Rename from *fscalexf4.
        (expNcorexf3): New expander.
        (expxf2, exp10xf2, exp2xf2): Use expNcorexf3 expander.
        (exp<mode>2): Rename from expsf2 and expdf2. Macroize expander using
        X87MODEF12 mode macro.  Extend operand 1 to XFMode, use expxf2 and
        truncate result to requested mode. Use SSE_FLOAT_MODE_P to disable
        patterns for SSE math.
        (exp10<mode>2): Similarly, with exp10 expanders.
        (exp2<mode>2): Similarly, with exp2 expanders.
        (expm1<mode>2): Similarly, with expm1 expanders.
        (ldexp<mode>3): Similarly, with ldexp expanders.
        (log<mode>2, log10<mode>2, log2<mode>2, log1p<mode>2, logb<mode>2):
        Use gen_truncxf<mode>2_i387_noop to truncate result.

2007-01-19  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.h (PREFERRED_STACK_BOUNDARY): Define to 32
        for ColdFire targets.

2007-01-19  Nathan Sidwell  <nathan@codesourcery.com>
            Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.h (M68K_STATIC_CHAIN_REG_NAME): New macro.
        (INITIALIZE_TRAMPOLINE): Use STATIC_CHAIN_REGNUM.
        (__transfer_from_trampoline): Use M68K_STATIC_CHAIN_REG_NAME.
        * config/m68k/m68kelf.h (STATIC_CHAIN_REGNUM): Override.
        (M68K_STATIC_CHAIN_REG_NAME): Likewise.
        * config/m68k/netbsd-elf.h (M68K_STATIC_CHAIN_REG_NAME): Likewise.

2007-01-19  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.md (adddi_dilshr32): Rename to...
        (*adddi_dilshr32): ...this.  Fix formatting.  Remove commented-out
        non-canonical pattern.  Restrict to !TARGET_COLDFIRE.
        (*adddi_dilshr32_cf): New pattern.
        (adddi3, subdi3): Remove first alternatives.

2007-01-19  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.c (notice_update_cc): If an SFmode move is
        implemented using move.l, do not use its cc result for floating-point
        comparisons.

2007-01-19  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.h (EXTRA_CONSTRAINT): Stop the 'T' constraint
        from accepting 's' constraints if flag_pic.

2007-01-19  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.md (bordered, bunordered, buneq, bunge, bungt)
        (bunle, bunlt, bltgt, bordered_rev, bunordered_rev, buneq_rev)
        (bunge_rev, bungt_rev, bunle_rev, bunlt_rev, bltgt_rev): Change
        condition from TARGET_68881 to TARGET_HARD_FLOAT.

2007-01-19  Sandra Loosemore  <sandra@codesourcery.com>

        * longlong.h (count_leading_zeros, COUNT_LEADING_ZEROS_0): Add
        ColdFire alternatives.
        * config/m68k/m68k.h (CLZ_DEFINED_VALUE_AT_ZERO): New macro.
        * config/m68k/m68k.md (clzsi2):  Define for ColdFire
        architectures that support ff1 instruction.

2007-01-19  Richard Sandiford  <richard@codesourcery.com>
            Julian Brown  <julian@codesourcery.com>

        * config/m68k/m68k.h (CONST_OK_FOR_LETTER_P): Add an 'R' case.
        * config/m68k/m68k.md (*movsi_cfv4): Fold into...
        (*movsi_cf): ...here.  Remove unnecessary 'R' from 'Rg'.
        Add commentary.

2007-01-19  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k-protos.h (valid_mov3q_const): Take a HOST_WIDE_INT
        and return a bool.
        (output_move_const_into_data_reg, output_move_simode_const): Delete.
        * config/m68k/m68k.c (const_method, const_int_cost): Take a
        HOST_WIDE_INT instead of an rtx.
        (m68k_rtx_costs): Update call accordingly.
        (output_move_const_into_data_reg): Likewise.  Fix formatting.
        (valid_mov3q_const): Take a HOST_WIDE_INT instead of an rtx.
        Return a bool.
        (output_move_simode_const): Update calls after above changes.
        Rework to use automatic variables and predicates like MEM_P.
        * config/m68k/m68k.md (pushexthisi_const): Update call to
        valid_mov3q_const.

2007-01-19  Dirk Mueller  <dmueller@suse.de>

        * tree-ssa-alias.c (perform_var_substitution): Fix typo
        in dump_flags test.

2007-01-19  Richard Guenther  <rguenther@suse.de>

        * builtins.c (expand_builtin_cexpi): Fall back to expanding
        via cexp in case sincos is not available.

2007-01-19  Richard Guenther  <rguenther@suse.de>

        * doc/tm.texi (TARGET_HAS_SINCOS): Document new target macro.
        * defaults.h (TARGET_HAS_SINCOS): Default to off.
        * config/linux.h (TARGET_HAS_SINCOS): Set to on if we have glibc.
        * config/alpha/linux.h (TARGET_HAS_SINCOS): Likewise.
        * config/sparc/linux.h (TARGET_HAS_SINCOS): Likewise.
        * config/sparc/linux64.h (TARGET_HAS_SINCOS): Likewise.
        * config/rs6000/linux.h (TARGET_HAS_SINCOS): Likewise.
        * config/rs6000/linux64.h (TARGET_HAS_SINCOS): Likewise.

2007-01-19  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*fpatanxf3_i387, fpatan_extend<mode>xf3_i387):
        New insn patterns.
        (atan2sf3_1, atan2df3_1, atan2xf3_1): Remove insn patterns.
        (atan2xf3): Directly generate RTL pattern.
        (atan2<mode>3): Rename from atan2sf3 and atan2df3 and macroize insn
        patterns using X87MODEF12 mode macro.  Use fpatan_extend<mode>xf3_i387
        and truncate result to requested mode.  Use SSE_FLOAT_MODE_P to
        disable patterns for SSE math.
        (atan<mode>2): Rename from atansf2 and atandf2 and macroize insn
        patterns using X87MODEF12 mode macro.  Use fpatan_extend<mode>xf3_i387
        and truncate result to requested mode.  Use SSE_FLOAT_MODE_P to
        disable patterns for SSE math.

2007-01-19  Alexandre Oliva  <aoliva@redhat.com>

        * libgcc-std.ver: Fix typo in %inherit for GCC_4.3.0.

2007-01-18  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (fold_unary) <VIEW_CONVERT_EXPR>: Optimize away a
        VIEW_CONVERT_EXPR to the same type as it's operand.

2007-01-18  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/darwin-ldouble.c: Only build _SOFT_FLOAT if
        configured for long double 128.

2007-01-18  Mike Stump  <mrs@apple.com>

        * config/rs6000/rs6000.c (rs6000_emit_vector_compare): Fix build
        error.

2007-01-18  Michael Meissner  <michael.meissner@amd.com>

        * i386.c (ix86_compute_frame_layout): Make fprintf's in #if 0 code
        type correct.

2007-01-18  Jan Hubicka  <jh@suse.cz>

        * tree-ssa-operands.c (vop_free_bucket_size): Never return value
        greater than NUM_VOP_FREE_BUCKETS.

2007-01-18  Daniel Berlin  <dberlin@dberlin.org>

        * tree-ssa-structalias.c: Update comments.
        (ptabitmap_obstack): Removed.
        (pta_obstack): New.
        (oldpta_obstack): Ditto.
        (stats): Add a few members.
        (struct variable_info): Remove node, complex, address_taken, and
        indirect_target members. Add oldsolution member.
        (new_var_info): Do not initialize removed members.
        (constraint_expr_type): Remove INCLUDES.
        (constraint_graph): Add size, implicit_preds, rep,
        indirect_cycles, eq_rep, label, direct_nodes, and complex members.
        (FIRST_REF_NODE): New macro.
        (LAST_REF_NODE): Ditto.
        (FIRST_ADDR_NODE): Ditto.
        (find): New function.
        (unite): Ditto.
        (dump_constraint): Do not handle INCLUDES.
        (insert_into_complex): Do not insert duplicate constraints.
        (condense_varmap_nodes): Renamed and rewritten into ...
        (merge_node_constraints): This. Also fix bug in handling of
        offseted copy constraints.
        (clear_edges_for_node): No longer need to deal with preds at all,
        or removing associated preds/succs. 
        (merge_graph_nodes): Deal with indirect_cycles.
        Don't deal with predecessors.
        (add_implicit_graph_edge): New function.
        (add_pred_graph_edge): Ditto.
        (add_graph_edge): Don't deal with predecessors.
        (build_constraint_graph): Removed.
        (build_pred_graph): New function.
        (build_succ_graph): Ditto.
        (struct scc_info): Removed in_component. Added roots, dfs, and
        node_mapping. Remove visited_index, unification_queue.
        (scc_visit): Deal with union-find we do now.
        Deal with cycles with REF nodes.
        (collapse_nodes): Renamed and rewritten to ...
        (unify_nodes): This.
        (process_unification_queue): Removed.
        (topo_visit): Cleanup
        (do_da_constraint): Use find.
        (do_sd_constraint): Ditto.
        (do_ds_constraint): Ditto.
        (do_complex_constraint): Ditto.
        (init_scc_info): Update for removed and added members.
        (find_and_collapse_graph_cycles): Renamed and rewritten into ...
        (find_indirect_cycles): This.
        (equivalence_class): New variable.
        (label_visit): New function.
        (perform_variable_substitution): Rewritten.
        (free_var_substitution_info): New function.
        (find_equivalent_node): Ditto.
        (move_complex_constraints): Ditto.
        (eliminate_indirect_cycles): Ditto.
        (solve_graph): Only propagate changed bits.
        Use indirect cycle elimination.
        Use find.
        (tree_id_t): Rename to tree_vi_t, delete id member, add vi member.
        (tree_id_eq): Renamed to ...
        (tree_vi_eq): This. Update for member change
        (insert_id_for_tree): Renamed and rewritten to ...
        (insert_vi_for_tree): This.
        (lookup_id_for_tree): Renamed and rewritten to ...
        (lookup_vi_for_tree): This.
        (get_id_for_tree): Renamed and rewritten to ...
        (get_vi_for_tree): Ditto.
        (get_constraint_exp_from_ssa_var): Update to use get_vi_for_tree.
        (process_constraint): Don't handle INCLUDES.
        Remove special ADDRESSOF case.
        (find_func_aliases): Rewrite to use vi functions instead of id
        ones.
        (create_function_info_for): Ditto.
        (create_variable_info_for): Ditto.
        (intra_create_variable_infos): Ditto.
        (merge_smts_into): Ditto.
        (find_what_p_points_to): Ditto.
        (init_base_vars): Ditto.
        (init_alias_vars): Ditto.
        (remove_preds_and_fake_succs): New function.
        (dump_sa_points_to_info): Dump new stats.
        (dump_solution_for_var): Use find.
        (set_used_smts): Fix formatting.
        (compute_points_to_sets): Updated for new functions.
        (ipa_pta_execute): Ditto.

2007-01-18  Kazu Hirata  <kazu@codesourcery.com>
            Richard Sandiford  <richard@codesourcery.com>

        * doc/tm.texi (TARGET_FUNCTION_VALUE): Expand documentation of
        parallels.
        * calls.c (expand_call): If the return value is a PARALLEL,
        extract its first member.
        * config/m68k/linux.h (FUNCTION_EXTRA_EPILOGUE): Remove.
        * config/m68k/m68k.c (m68k_output_function_epilogue): Don't
        use FUNCTION_EXTRA_EPILOGUE.
        (m68k_function_value): Return a PARALLEL if the return value
        is of a pointer type.
        * config/m68k/netbsd-elf.h (current_function_returns_pointer)
        (FUNCTION_EXTRA_EPILOGUE): Remove.
        * config/m68k/m68k.md (D0_REG): New constant.

2007-01-18  Kazu Hirata  <kazu@codesourcery.com>

        * config/m68k/m68k.c (m68k_output_function_epilogue): Don't
        output a NOP for empty epilogues.

2007-01-18  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.c (m68k_use_return_insn): Update comments
        before function.  Extend register save check to include all
        registers, not just integer ones.

2007-01-18  Kazu Hirata  <kazu@codesourcery.com>

        * config/m68k/m68k-protos.h (use_return_insn): Rename to...
        (m68k_use_return_insn): ...this.
        * config/m68k/m68k.h (USE_RETURN_INSN): Delete.
        * config/m68k/m68k.c (use_return_insn): Rename to...
        (m68k_use_return_insn): ...this.
        * config/m68k/m68k.md (return): Use m68k_use_return_insn instead
        of USE_RETURN_INSN.

2007-01-18  Nathan Sidwell  <nathan@codesourcery.com>

        * config/m68k/fpgnulib.c (__truncdfsf2): Implement round to
        nearest even, fix denormal rounding overflow.

2007-01-18  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.md (movsf_cf_hard): Use fsmove instead of
        f%$smove and f%$move.
        (movdf_cf_hard): Use fdmove for cases 0 and 3 and fmove for case 1.
        (extendsfdf2_cf): Use fdmove instead of f%&move.
        (truncdfsf2_cf): Use fsmove instead of f%$smove.
        (add<mode>3_cf, sub<mode>3_cf): Use <FP:prec> instead of <FP:round>.

2007-01-18  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.md (movdf_cf_hard): Use output_move_double for
        GPR<-GPR moves.

2007-01-18  Richard Sandiford  <richard@codesourcery.com>

        * real.h (real_format): Add a canonical_nan_lsbs_set field.
        (coldfire_single_format): Declare.
        (coldfire_double_format): Likewise.
        * real.c (encode_ieee_single): Use canonical_nan_lsbs_set instead
        of qnan_msb_set to determine the lower bits of a canonical
        NaN significand.
        (encode_ieee_double): Likewise.
        (encode_ieee_quad): Likewise.
        (ieee_single_format): Initialize canonical_nan_lsbs_set.
        (mips_single_format): Likewise.
        (ieee_double_format): Likewise.
        (mips_double_format): Likewise.
        (ieee_extended_motorola_format): Likewise.
        (ieee_extended_intel_96_format): Likewise.
        (ieee_extended_intel_128_format): Likewise.
        (ieee_extended_intel_96_round_53_format): Likewise.
        (ibm_extended_format): Likewise.
        (mips_extended_format): Likewise.
        (ieee_quad_format): Likewise.
        (mips_quad_format): Likewise.
        (vax_f_format): Likewise.
        (vax_d_format): Likewise.
        (vax_g_format): Likewise.
        (i370_single_format): Likewise.
        (i370_double_format): Likewise.
        (decimal_single_format): Likewise.
        (decimal_double_format): Likewise.
        (decimal_quad_format): Likewise.
        (c4x_single_format): Likewise.
        (c4x_extended_format): Likewise.
        (real_internal_format): Likewise.
        (coldfire_single_format): New real_format.
        (coldfire_double_format): Likewise.
        * config/pdp11/pdp11.c (pdp11_f_format): Initialize
        canonical_nan_lsbs_set.
        (pdp11_d_format): Likewise.
        * config/m68k/m68k.c (override_options): Override REAL_FORMAT_MODE
        if TARGET_COLDFIRE_CPU.

2007-01-18  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k-protos.h (m68k_output_pic_call): Delete.
        (output_call, m68k_legitimize_call_address): Declare.
        * config/m68k/m68k.h (EXTRA_CONSTRAINT): Remove unnecessary
        parenthesees.  Add support for a 'W' constraint.
        (LEGITIMATE_PIC_OPERAND_P): Remove SYMBOL_REF_FLAG handling.
        (PRINT_OPERAND_PUNCT_VALID_P): Remove comment about 'o'.
        (m68k_symbolic_call, m68k_symbolic_jump): Declare.
        * config/m68k/m68k.c (m68k_symbolic_call, m68k_symbolic_jump): New
        variables.
        (override_options): Initialize them.  Do not set flag_no_function_cse
        for TARGET_ID_SHARED_LIBRARY.
        (m68k_output_pic_call): Delete.
        (m68k_legitimize_call_address): New function.
        (print_operand): Remove the %o prefix.  Handle the %p prefix.
        (output_call): New function.
        (m68k_output_mi_thunk): Use m68k_symbolic_jump.  Always load the
        target address from the GOT if symbolic jumps are not allowed.
        * config/m68k/m68k.md (call, general_operand): Do not set
        SYMBOL_REF_FLAG.  Use m68k_legitimize_call_address instead.
        Merge separate flag_pic and !flag_pic define_insns into...
        (*call, *call_value): ...these new patterns.  Match the address
        rather than the containing MEM and require it to be a call_operand.
        Use output_call to generate the asm template.
        * config/m68k/predicates.md (const_call_operand): New predicate.
        (call_operand): Likewise.

2007-01-18  Nathan Sidwell  <nathan@codesourcery.com>

        * config/m68k/m68k.h (REGISTER_MOVE_COST): Simplify definition.
        (STACK_GROWS_DOWNWARD): Define to 1.
        (FUNCTION_VALUE, LIBCALL_VALUE, FUNCTION_VALUE_REGNO_P): Equivocate
        comments, emphasizing that these values are only defaults.
        * config/m68k/linux.h (LINK_SPEC): Fix formatting in #undef.
        * config/m68k/m68k.c (const_method): Remove trailing whitespace.

2007-01-18  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.md (cmpsi): Remove outdated flag_pic handling.

2007-01-18  Kazu Hirata  <kazu@codesourcery.com>
            Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.h (DATA_REGNO_P, ADDRESS_REGNO_P, INT_REGNO_P)
        (FP_REGNO_P): New macros.
        (REGNO_OK_FOR_INDEX_P, REGNO_OK_FOR_BASE_P, REGNO_OK_FOR_DATA_P)
        (REGNO_OK_FOR_FP_P, REG_OK_FOR_INDEX_P, REG_OK_FOR_BASE_P): Use them.
        (EH_RETURN_STACKADJ_RTX): Use A0_REG.
        * config/m68k/m68k.c (m68k_regno_mode_ok): Use the new REGNO macros.

2007-01-18  Nathan Sidwell  <nathan@codesourcery.com>

        * config.gcc (m68k-*-aout*, m68k-*-coff*, m68020-*-elf*, m68k-*-elf*)
        (m68k-*-uclinuxoldabi, m68k-*-uclinux*, m68k-*-rtems*): Add t-floatlib
        to $tmake_file.
        * config/m68k/t-floatlib: New file, extracting common code from...
        * config/m68k/t-m68kbare, config/m68k/t-m68kelf,
        * config/m68k/t-uclinux: Here.
        * config/m68k/fpgnulib.c: Do not compile extendeed precision
        routines on ColdFire targets.

2007-01-18  Nathan Sidwell  <nathan@codesourcery.com>

        * config.gcc (m68k-*-aout*, m68k-*-coff*, m68020-*-elf*, m68k-*-elf*)
        (m68010-*-netbsdelf*, m68k*-*-netbsdelf*, m68k*-*-openbsd*)
        (m68k-*-uclinuxoldabi, m68k-*-uclinux*, m68k-*-linux*)
        (m68k-*-rtems*): Use tm_file rather than m68k/m68k.h and
        explicitly set MOTOROLA to 1.
        * config/m68k/m68k.h (MOTOROLA): Simplify definition accordingly.

2007-01-18  Richard Sandiford  <richard@codesourcery.com>
            Nathan Sidwell  <nathan@codesourcery.com>

        * config/m68k/m68k.h (PCC_STATIC_STRUCT_RETURN): Delete.
        (ASM_OUTPUT_REG_PUSH, ASM_OUTPUT_REG_POP): Add MOTOROLA cases.
        * config/m68k/coff.h (REGISTER_PREFIX_MD): Delete.
        * config/m68k/m68020-elf.h (LIB_SPEC): Delete.
        * config/m68k/m68k-none.h (CC1_SPEC, CPP_SUBTARGET_SPEC): Delete.
        * config/m68k/m68kelf.h (IMMEDIATE_PREFIX, REGISTER_PREFIX_MD)
        (ASM_OUTPUT_REG_PUSH, ASM_OUTPUT_REG_POP): Delete.
        (NO_DOLLAR_IN_LABEL, PCC_STATIC_STRUCT_RETURN): Don't undefine.
        (BSS_ASM_OP, ASM_OUTPUT_SKIP, ASM_OUTPUT_ASCII): Delete.
        * config/m68k/m68kemb.h (PCC_STATIC_STRUCT_RETURN): Don't undefine.
        * config/m68k/linux.h (SIZE_TYPE, PTRDIFF_TYPE, WCHAR_TYPE)
        (WCHAR_TYPE_SIZE, TARGET_OBJFMT_CPP_BUILTINS): Delete.
        (TARGET_OS_CPP_BUILTINS): Don't define mc68000 and mc68020 here.
        (DBX_REGISTER_NUMBER): Delete.
        * config/m68k/netbsd-elf.h (IMMEDIATE_PREFIX): Delete.
        (PCC_STATIC_STRUCT_RETURN): Don't undefine.
        * config/m68k/openbsd.h (PCC_STATIC_STRUCT_RETURN): Define.

2007-01-18  Richard Sandiford  <richard@codesourcery.com>

        * config.gcc (m68k-*-uclinux*): Add flat.h to $tm_file.
        * config/flat.h: New file.
        * crtstuff.c (USE_PT_GNU_EH_FRAME): Don't define if
        OBJECT_FORMAT_FLAT.
        * config/m68k/m68k.h (ASM_PREFERRED_EH_DATA_FORMAT): Do not use
        indirect references for -msep-data or -mid-shared-library.
        Do not use PC-relative code addresses either.
        * config/m68k/m68k.c (override_options): Restrict -fPIC error
        to -mpcrel.
        * config/m68k/uclinux.h (STARTFILE_SPEC): Define.  Use Scrt1.o
        for shared libraries and crt1.o for executables.  Use crti.o and
        crtbegin.o.
        (ENDFILE_SPEC): Use crtend.o and crtn.o.
        (LIB_SPEC): Suppress -Rlibc.gdb if -static-libc is given.
        Do not add -elf2flt or -shared-lib-id options here.
        (LINK_SPEC): Define.  Pass -elf2flt if no -elf2flt option is given.
        Pass -shared-lib-id if -mid-shared-library, taking the library
        identifier from -mshared-library-id if given, otherwise
        defaulting to 0.
        (EH_FRAME_IN_DATA_SECTION): Do not undefine.
        (INIT_SECTION_ASM_OP, FINI_SECTION_ASM_OP): Likewise.
        (TARGET_OS_CPP_BUILTINS): Define __GXX_MERGED_TYPEINFO_NAMES=0
        and __GXX_TYPEINFO_EQUALITY_INLINE=0 if -mid-shared-library.
        (DRIVER_SELF_SPECS): Map unadorned PIC options to -msep-data.
        * config/m68k/t-uclinux (EXTRA_MULTILIB_PARTS): Add crtbegin.o
        and crtend.o.
        * config/m68k/lb1sf68.asm (PICCALL): Use an lea and pc-relative
        jump sequence for ISA A and ISA A+.
        (PICJUMP): Likewise.

2007-01-18  Richard Sandiford  <richard@codesourcery.com>

        * config.gcc (m68k-*-uclinux*): Base the port on the common
        and m68k GNU/Linux files rather than on the generic ELF ones.
        * config/m68k/uclinux.h (TARGET_VERSION): Override.
        (TARGET_OS_CPP_BUILTINS): Use LINUX_TARGET_OS_CPP_BUILTINS.

2007-01-18  Julian Brown  <julian@codesourcery.com>
            Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.h (LONG_DOUBLE_TYPE_SIZE): Make 64-bit on ColdFire.
        (LIBGCC2_LONG_DOUBLE_TYPE_SIZE): Likewise.
        * config/m68k/netbsd-elf.h (LIBGCC2_LONG_DOUBLE_TYPE_SIZE): Undefine
        before redefining.
        * config/m68k/uclinux-oldabi.h (LONG_DOUBLE_TYPE_SIZE): Redefine to
        80 unconditionally.
        (LIBGCC2_LONG_DOUBLE_TYPE_SIZE): Likewise.

2007-01-18  Richard Sandiford  <richard@codesourcery.com>

        * doc/install.texi: Document m68k-uclinuxoldabi.
        * config.gcc (m68k-*-uclinuxoldabi): New configuration.
        * config/m68k/uclinux-oldabi.h: New file, copied from
        config/m68k/uclinux.h.

2007-01-18  Kaz Kojima  <kkojima@rr.iij4u.or.jp>

        * config/m32r/m32r-protos.h (m32r_expand_epilogue): Declare it.
        * config/m32r/m32r.c (m32r_setup_incoming_varargs): Use gen_frame_mem.
        (m32r_compute_frame_size): Use unsigned for regno.
        (m32r_reload_lr): Use gen_frame_mem.
        (pop): New.
        (m32r_output_function_epilogue): Don't output the function epilogue
        textually here.
        (m32r_expand_epilogue): New.
        (direct_return): Return false if the function has the interrupt
        attribute.
        (m32r_hard_regno_rename_ok): Remove code for the textual epilogue.
        * config/m32r/m32r.md (epilogue): New expander.
        (return_lr, return_rte): New insns.
        (return): Make it expander.
        (return_normal): New expander.

2007-01-18  Josh Conner  <jconner@apple.com>

        PR target/30485
        * config/rs6000/rs6000.c (rs6000_emit_vector_compare): Add
        support for UNLE, UNLT, UNGE, and UNGT.

2007-01-18  Jan Hubicka  <jh@suse.cz>

        * tree-vrp.c (finalize_jump_threads): Do not call cleanup_cfg by hand.
        * tree-tailcall (add_virtual_phis): Likewise.
        (optimize_tail_call): Return TODOs.
        (execute_tail_calls): Return TODOs.
        * tree-ssa-ccp (execute_fold_all_builtins): Do cleanup_cfg via TODO.
        * tree-cfgcleanup.c (cleanup_tree_cfg_loop): Return if something
        changed.
        * tree-ssa-forwprop.c (tree_ssa_forward_propagate_single_use_value):
        Cleanup cfg using TODO.
        * tree-flow.h (cleanup_tree_cfg_loop): Update prototype.
        * passes.c (execute_function_todo): When cleanup did something, remove
        unused locals.
        * tree-cfg.c (pass_build_cfg): Add cleanup_cfg TODO.
        (make_edges): Don't cleanup_cfg.

2007-01-18  Uros Bizjak  <ubizjak@gmail.com>

        * reg-stack.c (subst_stack_regs_pat) [UNSPEC_SINCOS_COS,
        UNSPEC_XTRACT_FRACT]: Use generic code for instructions that
        operate on the top of stack.
        [UNSPEC_SINCOS_SIN, UNSPEC_XTRACT_EXP, UNSPEC_TAN]: Rewrite
        register handling of instructions that output to the second
        stack slot.
        [UNSPEC_TAN_ONE, UNSPEC_TAN_TAN]: Remove.
        (move_for_stack_reg): Special-case check for dead destination
        stack slot for constant load of 1.0 inside UNSPEC_TAN.

        * config/i386/i386.md (UNSPEC_TAN): New constant.
        (UNSPEC_TAN_ONE, UNSPEC_TAN_TAN): Remove.
        (fptanxf4_i387, fptan_extend<mode>xf4_i387): New patterns
        to correctly model move of constant 1.0 to top stack slot.
        (*tandf3_1, *tansf3_1, *tanxf3_1): Remove insn patterns.
        (unnamed peephole2 pattern): Remove corresponding peephole2
        pattern that optimizes tan insn and loading of constant 1.0.
        (tanxf2): Use fptanxf4_i387.
        (tan<mode>2): Rename from tansf2 and tandf2 and macroize insn
        patterns using X87MODEF12 mode macro.  Use fptan_extend<mode>xf4_i387
        and truncate result to requested mode.  Use SSE_FLOAT_MODE_P to
        disable patterns for SSE math.
        (sincos<mode>3): Use truncxf<mode>2_i387_noop for truncation.
        (fyl2x_extend<mode>xf3_i387): Use X87MODEF12 for operand 1.

2007-01-18  Dirk Mueller  <dmueller@suse.de>
            Richard Guenther <rguenther@suse.de>

        PR diagnostic/8268
        * doc/invoke.texi (Warray-bounds): Document -Warray-bounds.
        * common.opt (Warray-bounds): Add new warning option.
        * c-opts.c (c_common_handle_option): Define -Warray-bounds
        if -Wall is given.
        * Makefile.in: make tree-vrp.o depend on toplev.h
        * tree-vrp.c (vrp_finalize): Call check_array_refs if -Warray-bounds
        is enabled.
        (check_array_refs, check_array_bounds, check_array_ref): New.

2007-01-18  Jan Hubicka  <jh@suse.cz>

        * tree-ssa-ccp.c (ccp_finalize): Return if something changed.
        (execute_ssa_ccp): Return flags conditionally.
        * tree-ssa-propagate.c (substitue_and_fold): Return if something was
        changed.
        * tree-ssa-propagate.h (substitute_and_fold): Update prototype.

2007-01-18  Steven Bosscher  <steven@gcc.gnu.org>

        * cfgcleanup.c (cleanup_cfg): Detect cfglayout mode and set
        the CLEANUP_CFGLAYOUT flag when in cfglayout mode.

        * Makefile.c (GTFILES): Add cfglayout.h.
        * gengtype.c (open_base_files): Likewise.
        * cfglayout.c (cfg_layout_function_footer,
        cfg_layout_function_header) Reindent to make gengtype happy.
        * cfglayout.h (cfg_layout_function_footer,
        cfg_layout_function_header): Add GTY(()) marker.

        * ifcvt.c (noce_try_sign_mask): Make sure INSN_B is non-null.

2007-01-18  Ben Elliston  <bje@au.ibm.com>

        * genautomata.c (write_automata): Include xstrerror output in the
        error message if writing the DFA description file fails.

2007-01-17  H.J. Lu  <hongjiu.lu@intel.com>

        * config/mips/mips-protos.h (mips_output_external): Make it
        return void.
        * config/mips/iris.h (TARGET_ASM_EXTERNAL_LIBCALL): Removed.
        * config/mips/mips.c (irix_output_external_libcall): Likewise.
        (extern_list): Likewise.
        (extern_head): Likewise.
        (TARGET_ASM_FILE_END): Likewise.
        (mips_file_end): Likewise.
        (mips_output_external): Rewritten.

2007-01-18  Ben Elliston  <bje@au.ibm.com>

        * genpreds.c (write_insn_preds_c): Only write out the function
        body for regclass_for_constraint if we have register constraints.

2007-01-17  Tom Tromey  <tromey@redhat.com>

        * doc/sourcebuild.texi (libgcj Tests): Use sourceware.org.
        * doc/install.texi (Testing): Use sourceware.org.
        (Binaries): Likewise.
        (Specific): Likewise.
        * doc/contrib.texi (Contributors): Use sourceware.org.

2007-01-17  Anatoly Sokolov <aesok@post.ru>

        * config/avr/avr.h (AVR_HAVE_LPMX): New macro.
        (AVR_ENHANCED): Rename to ...
        (AVR_HAVE_MUL): ... new.
        (avr_enhanced_p): Rename to ...
        (avr_have_mul_p): ... new.
        (TARGET_CPU_CPP_BUILTINS): Use 'avr_have_mul_p' instead of 
        'avr_enhanced_p' for "__AVR_ENHANCED__". Define "__AVR_HAVE_MUL__".
        * config/avr/avr.c (avr_enhanced_p): Rename to ...
        (avr_have_mul_p): ... new.
        (base_arch_s): Rename 'enhanced' to 'have_mul'.
        (avr_override_options): Use 'avr_have_mul_p' and 'have_mul' instead of
        'avr_enhanced_p' and 'enhanced'.
        (ashlhi3_out, ashrhi3_out, lshrhi3_out, avr_rtx_costs): Use 
        AVR_HAVE_MUL instead of AVR_ENHANCED.
        * avr.md (*tablejump_enh): Use AVR_HAVE_LPMX instead of AVR_ENHANCED.
        (mulqi3, *mulqi3_enh, *mulqi3_call, mulqihi3, umulqihi3, mulhi3, 
        *mulhi3_enh, *mulhi3_call, mulsi3, *mulsi3_call): Use AVR_HAVE_MUL 
        instead of AVR_ENHANCED.
        (*tablejump_enh): Use AVR_HAVE_LPMX instead of AVR_ENHANCED.
        * libgcc.S: Use __AVR_HAVE_MUL__ instead of __AVR_ENHANCED__.
        (__tablejump__): Use __AVR_HAVE_LPMX__ instead of __AVR_ENHANCED__.

2007-01-17  Ian Lance Taylor  <iant@google.com>

        * vec.h (VEC_reserve_exact): Define.
        (vec_gc_p_reserve_exact): Declare.
        (vec_gc_o_reserve_exact): Declare.
        (vec_heap_p_reserve_exact): Declare.
        (vec_heap_o_reserve_exact): Declare.
        (VEC_OP (T,A,reserve_exact)): New static inline function, three
        versions.
        (VEC_OP (T,A,reserve)) [all versions]: Remove handling of
        negative parameter.
        (VEC_OP (T,A,alloc)) [all versions]: Call ...reserve_exact.
        (VEC_OP (T,A,copy)) [all versions]: Likewise.
        (VEC_OP (T,a,safe_grow)) [all versions]: Likewise.
        * vec.c (calculate_allocation): Add exact parameter.  Change all
        callers.
        (vec_gc_o_reserve_1): New static function, from vec_gc_o_reserve.
        (vec_gc_p_reserve, vec_gc_o_reserve): Call vec_gc_o_reserve_1.
        (vec_gc_p_reserve_exact, vec_gc_o_reserve_exact): New functions.
        (vec_heap_o_reserve_1): New static function, from vec_heap_o_reserve.
        (vec_heap_p_reserve, vec_heap_o_reserve): Call vec_heap_o_reserve_1.
        (vec_heap_p_reserve_exact): New function.
        (vec_heap_o_reserve_exact): New function.

2007-01-17  Jan Hubicka  <jh@suse.cz>

        * ipa-type-escape.c (look_for_casts): Revamp using handled_component_p.

2007-01-17  Eric Christopher  <echristo@apple.com>

        * config.gcc: Support core2 processor.

2007-01-16  Jan Hubicka  <jh@suse.cz>

        * tree-ssanames.c (release_dead_ssa_names): Instead of ggc_freeing
        the names, just unlink the chain so we don't crash on dangling pointers
        to dead SSA names.

2007-01-16  Jan Hubicka  <jh@suse.cz>

        * cgraph.h (cgraph_decide_inlining_incrementally): Kill.
        * tree-pass.h: Reorder to make IPA passes appear toegher.
        (pass_early_inline, pass_inline_parameters, pass_apply_inline): Declare.
        * cgraphunit.c (cgraph_finalize_function): Do not compute inling
        parameters, do not call early inliner.
        * ipa-inline.c: Update comments.  Include tree-flow.h
        (cgraph_decide_inlining): Do not compute inlining parameters.
        (cgraph_decide_inlining_incrementally): Return TODOs; assume to
        be called with function context set up.
        (pass_ipa_inline): Remove unreachable functions before pass.
        (cgraph_early_inlining): Simplify assuming to be called from the
        PM as local pass.
        (pass_early_inline): New pass.
        (cgraph_gate_ipa_early_inlining): New gate.
        (pass_ipa_early_inline): Turn into simple wrapper.
        (compute_inline_parameters): New function.
        (gate_inline_passes): New gate.
        (pass_inline_parameters): New pass.
        (apply_inline): Move here from tree-optimize.c
        (pass_apply_inline): New pass.
        * ipa.c (cgraph_remove_unreachable_nodes): Verify cgraph after
        transforming.
        * tree-inline.c (optimize_inline_calls): Return TODOs rather than
        doing them by hand.
        (tree_function_versioning): Do not allocate dummy struct function.
        * tree-inline.h (optimize_inline_calls): Update prototype.
        * tree-optimize.c (execute_fixup_cfg): Export.
        (pass_fixup_cfg): Remove
        (tree_rest_of_compilation): Do not apply inlines.
        * tree-flow.h (execute_fixup_cfg): Declare.
        * Makefile.in (gt-passes.c): New.
        * passes.c: Include gt-passes.h
        (init_optimization_passes): New passes.
        (nnodes, order): New static vars.
        (do_per_function_toporder): New function.
        (execute_one_pass): Dump current pass here.
        (execute_ipa_pass_list): Don't dump current pass here.

2007-01-16  Janis Johnson  <janis187@us.ibm.com>

        * config/dfp-bit.c (dfp_compare_op): Return separate value for NaN.
        (DFP_NE, DFP_LE, DFP_GE): Return false for NaN.

2007-01-16  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/darwin-ldouble.c: Build file for SOFT_FLOAT.
        (strong_alias): Define.
        (__gcc_qmul): Provide non-FMA for soft-float.
        (__gcc_qdiv): Same.
        (__gcc_qneg): New.
        (__gcc_qeq): New.
        (__gcc_qle): New.
        (__gcc_qge): New.
        (__gcc_qunord): New.
        (__gcc_stoq): New.
        (__gcc_dtoq): New.
        (__gcc_qtos): New.
        (__gcc_qtod): New.
        (__gcc_qtoi): New.
        (__gcc_qtou): New.
        (__gcc_itoq): New.
        (__gcc_utoq): New.
        (fmsub): New.
        * config/rs6000/rs6000.c (rs6000_init_libfuncs): Initialize
        soft-float functions.
        * config/rs6000/libgcc-ppc-glibc.ver: Version soft-float symbols.
        * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): Do not warn
        about long double soft float.

2007-01-16  Dorit Nuzman  <dorit@il.ibm.com>
            Tehila Meyzels  <tehila@il.ibm.com>

        * tree-vectorizer.h (is_pattern_stmt_p): New.
        * tree-vect-analyze.c (vect_determine_vectorization_factor): Fix
        formatting (tabs instead of spaces). Cleanup and clarify setting
        of STMT_VINFO_VECTYPE. Call is_pattern_stmt_p.
        * tree-vect-transform.c (vect_get_vec_def_for_operand): Fix typo.
        (vectorizable_type_demotion): Check that types are integral.
        (vectorizable_type_promotion): Likewise.
        (vectorizable_store): Fix typo.  Eliminate new-line at end of
        comments.

2007-01-16  Jan Hubicka  <jh@suse.cz>

        * tree-ssanames.c (release_dead_ssa_names): Remove invalidated
        cgraph edges too.

2007-01-15  Eric Christopher  <echristo@apple.com>

        * ifcvt.c: Include vec.h, vecprim.h.
        (check_cond_move_block): New argument regs.
        Reorganize. Add registers used to regs.
        (cond_move_process_if_block): Use regs set above as
        loop bounds.

2007-01-15  Eric Christopher  <echristo@apple.com>

        * config/darwin.h: Update copyright.
        (TARGET_OPTION_TRANSLATE_TABLE): Add umbrella.
        (LINK_COMMAND_SPEC): Add -u.
        (LINK_SPEC): Fix umbrella for above.

2007-01-15  Joseph S. Myers  <joseph@codesourcery.com>

        * config/soft-fp/op-common.h, config/soft-fp/op-4.h: Update from
        glibc CVS.

2007-01-15  Tom Tromey  <tromey@redhat.com>

        * doc/sourcebuild.texi (libgcj Tests): Don't mention jacks.
        * doc/install.texi (Testing): Don't mention jacks.
        (Configuration): Document --enable-java-maintainer-mode.  Move
        --with-java-home to libgcj-specific section.  Document
        --with-ecj-jar.
        (Prerequisites): Mention --enable-java-maintainer-mode, ecj1.

2007-01-15  Jan Hubicka  <jh@suse.cz>

        * tree-ssa-dce.c (DCE_TODOs): New.
        (propagate_necessity): Return if something changed.
        (eliminate_unnecessary_stmts): Likewise.
        (perform_tree_ssa_dce): Return TODO flags when needed.
        (pass_dce, pass_dce_loop, pass_cd_dce): Remove TODO flags.

2007-01-15  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (fyl2xxf3_i387): Rename from fyl2x_xf3.
        (fyl2x_extend<mode>xf3_i387): New insn pattern.
        (log<mode>2): Rename from logsf2 and logdf2 and macroize insn
        patterns using X87MODEF12 mode macro.  Extend operand 1
        to XFmode. Use SSE_FLOAT_MODE_P to disable patterns for SSE math.
        (log10<mode>2): Ditto.
        (log2<mode>2): Ditto.
        (log1p<mode>2): Ditto.
        (logb<mode>2): Ditto.
        (fyl2xp1xf3_i387): Rename from fyl2xp1_xf3.
        (fyl2xp1_extend<mode>xf3_i387): New insn pattern.
        (*fxtractxf3_i387): Rename from *fxtractxf3.
        (fxtract_extend<mode>xf3_i387): New insn pattern.
        (ilogbsi2): Use match_dup 3, not match_operand:XF 3.
        * config/i386/i386.c (ix86_emit_i387_log1p): Use gen_fyl2xp1xf3_i387()
        and gen_fyl2xxf3_i387().

2007-01-14  Zdenek Dvorak <dvorakz@suse.cz>

        * loop-unswitch.c (unswitch_loop): Do not call fix_loop_placement.
        * cfgloopmanip.c (fix_loop_placement): Made static.  Use
        get_loop_exit_edges.  Changed return type to bool.
        * cfgloop.h (fix_loop_placement): Declaration removed.

2007-01-14  Dorit Nuzman  <dorit@il.ibm.com>

        * param.h (MIN_VECT_LOOP_BOUND): New.
        * params.def (MIN_VECT_LOOP_BOUND): New.
        * tree-vectorizer.c (slpeel_tree_peel_loop_to_edge): Takes another
        argument - minimum threshold for number of iterations.
        * tree-vectorizer.h (slpeel_tree_peel_loop_to_edge): Add another
        argument to declaration.
        * tree-vect-analyze.c (vect_analyze_operations): Check value of
        MIN_VECT_LOOP_BOUND.
        * tree-vect-transform.c (vect_do_peeling_for_loop_bound): Call
        slpeel_tree_peel_loop_to_edge with additional argument.
        (vect_do_peeling_for_alignment): Likewise.
        * doc/invoke.texi (min-vect-loop-bound): Document new param option.

2007-01-14  Uros Bizjak  <ubizjak@gmail.com>

        PR target/30413
        * config/i386/i386.c (print_operand) ['z']: Output 'b' for
        operands of size 1.

2007-01-14  Jan Hubicka  <jh@suse.cz>

        * tree-dfa.c (remove_referenced_var): New function.
        * tree-ssa-live.c (remove_unused_locals): Walk referenced vars and
        prune referenced vars list too.
        * tree-flow.h (remove_referenced_var): Declare.

2007-01-14  Jan Hubicka  <jh@suse.cz>

        * tree-eh.c (add_stmt_to_eh_region_fn): Do not add call_exprs
        separately.
        (remove_stmt_from_eh_region_fn): Do not remove call_exprs.
        (verify_eh_throw_stmt_node, verify_eh_throw_table_statements): Kill.
        * except.h (verify_eh_throw_table_statements): Kill prototype.
        * cfgexpand.c (expand_gimple_basic_block): Propagate Eh regions
        into call exrepssions.
        * tree-optimize.c (execute_free_cfg_annotatiosn): Do not call
        eh trhow verifier.
        * tree-cfg.c: Include pointer-set.h.
        (verify_node_sharing): Work on pointer set.
        (verify_eh_throw_stmt_node): New.
        (verify_stmts): Use pointers sets, verify throw_stmt.

2007-01-13  Zdenek Dvorak <dvorakz@suse.cz>

        * ipa-reference.c (analyze_function): Consider also addresses taken
        in phi nodes.

2007-01-12  Roger Sayle  <roger@eyesopen.com>

        * c-typeck.c (null_pointer_constant_p): Replace use of
        TREE_CONSTANT_OVERFLOW with TREE_OVERFLOW.
        (build_c_cast): Likewise.

2007-01-12  Roger Sayle  <roger@eyesopen.com>

        * tree.h (force_fit_type_double): Remove unused final argument.
        * c-common.c (constant_expression_warning): Replace use of
        TREE_CONSTANT_OVERFLOW with TREE_OVERFLOW.
        (convert_and_check): Likewise.
        (shorten_compare): Update call to force_fit_type_double.
        (c_common_truthvalue_conversion) <INTEGER_CST>: Use integer_zerop.
        * convert.c (convert_to_pointer): Update call to
        force_fit_type_double.
        * fold-const.c (force_fit_type_double): Remove overflowed_const
        argument.
        (int_const_binop, fold_convert_const_int_from_int,
        fold_convert_const_int_from_real, fold_div_compare,
        fold_sign_changed_comparison, fold_unary, fold_negate_const,
        fold_abs_const, fold_not_const): Remove the final argument from
        calls to force_fit_type_double.

2007-01-12  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        * configure.ac: Set insn to "nop" for spu-*-* also.
        * configure: Regenerate.

2007-01-12  Olga Golovanevsky  <olga@il.ibm.com>

        * builtins.def : Add BUILT_IN_FREE.

2007-01-12  Jan Hubicka  <jh@suse.cz>

        PR tree-optimization/30443
        * tree-inline.c (tree_function_versioning): Do not optimize when
        cloning for inlining.

2007-01-12  Zdenek Dvorak <dvorakz@suse.cz>

        * doc/loop.texi: Document recording of loop exits.
        * cfgloopmanip.c (loopify, duplicate_loop): Use alloc_loop.
        (update_single_exits_after_duplication,
        update_single_exit_for_duplicated_loop,
        update_single_exit_for_duplicated_loops): Removed.
        (duplicate_loop_to_header_edge): Do not call
        update_single_exits_after_duplication and
        update_single_exit_for_duplicated_loops.
        (loop_version): Do not update single_exit information.
        (fix_loop_structure): Use record_loop_exits instead of
        mark_single_exit_loops.
        * tree-ssa-loop-manip.c (tree_transform_and_unroll_loop): Update
        the lists of loop exits.
        * cfghooks.c (redirect_edge_and_branch, redirect_edge_and_branch_force,
        split_edge, merge_blocks): Update the lists of loop exits.
        * modulo-sched.c (sms_schedule): Pass LOOPS_HAVE_RECORDED_EXITS to
        loop_optimizer_init.
        * loop-init.c (loop_optimizer_init): Call record_loop_exits instead
        of mark_single_exit_loops.
        (loop_optimizer_finalize): Call release_recorded_exits.
        * tree-ssa-loop.c (tree_loop_optimizer_init): Pass
        LOOPS_HAVE_RECORDED_EXITS to loop_optimizer_init.
        * tree-vectorizer.c (slpeel_tree_duplicate_loop_to_edge_cfg): Do not
        update single exit information.
        * lambda-code.c (perfect_nestify): Ditto.
        * cfgloop.c (flow_loop_free): Destroy the list of exits of the loop.
        (mark_single_exit_loops): Removed.
        (alloc_loop, loop_exit_hash, loop_exit_eq, loop_exit_free,
        get_exit_descriptions, rescan_loop_exit, record_loop_exits,
        dump_recorded_exit, dump_recorded_exits, release_recorded_exits): New
        functions.
        (get_loop_exit_edges, single_exit): Use recorded exit lists.
        (add_bb_to_loop, remove_bb_from_loops): Update the lists of loop exits.
        (verify_loop_structure): Verify consistency of the exit lists.
        (flow_loops_find): Use alloc_loop.  Initialize exits hash.
        (set_single_exit): Removed.
        * cfgloop.h (struct loop_exit): New function.
        (struct loop): single_exit_ field replaced by exits field.
        (LOOPS_HAVE_MARKED_SINGLE_EXITS): Replaced by LOOPS_HAVE_RECORDED_EXITS.
        (struct loops): Added exits hash.
        (mark_single_exit_loops, set_single_exit): Declaration removed.
        (release_recorded_exits, record_loop_exits, rescan_loop_exit): Declare.

2007-01-12  Richard Sandiford  <richard@codesourcery.com>

        * doc/invoke.texi: Avoid use of @headitem.

2007-01-12  Richard Sandiford  <richard@codesourcery.com>

        * cse.c (cse_insn): Move HAVE_CC0 code after declarations.

2007-01-12  Richard Sandiford  <richard@codesourcery.com>

        * doc/install.texi: Fix m68k-*-* anchor and add m68k-*-* to the
        list of targets.

2007-01-12  Nathan Sidwell  <nathan@codesourcery.com>
            Richard Sandiford  <richard@codesourcery.com>

        * doc/invoke.texi: Document -mno-bitfield, -mno-rtd and -mno-short.
        * config/m68k/m68k.opt: Resort options.
        (mbitfield, mrtd, mshort): Remove RejectNegative properties.

2007-01-12  Nathan Sidwell  <nathan@codesourcery.com>
            Richard Sandiford  <richard@codesourcery.com>

        * doc/invoke.texi: Document the macros that are defined by
        m68k's -mtune and -mhard-float options.
        * config/m68k/m68k-protos.h (m68k_cpp_cpu_ident) Declare.
        (m68k_cpp_cpu_family): Likewise.
        * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Add a full set
        of __ucfv*__ macros.  Define __mcffpu__ if generating code for
        ColdFire FPUs.  Define __mcf_cpu_* and __mcf_family_* macros.
        * config/m68k/m68k.c (m68k_cpp_cpu_ident): New function.
        (m68k_cpp_cpu_family): Likewise.

2007-01-12  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Treat all mc68*
        macros besides mc68000 as tuning macros.  Use a switch statement
        to set them and mcpu32.

2007-01-12  Julian Brown  <julian@codesourcery.com>

        * config/m68k/m68k.h: Use TARGET_68040 instead of TARGET_68040_ONLY.
        (TARGET_68040_ONLY): Rename to...
        (TARGET_68040): ...this.
        * config/m68k/m68k.c: Use TARGET_68040 instead of TARGET_68040_ONLY.
        * config/m68k/m68k.md: Likewise.

2007-01-12  Julian Brown  <julian@codesourcery.com>
            Nathan Sidwell  <nathan@codesourcery.com>
            Richard Sandiford  <richard@codesourcery.com>

        * config.gcc (m680[012]0-*-*, m68k*-*-*): Set m68k_cpu_ident to
        the -mcpu= argument associated with the --with-cpu setting.
        Define M68K_DEFAULT_TUNE to the default -mtune= option,
        if different from the one implied by the -mcpu setting.
        Accept --with-cpu=FOO if FOO is listed in m68k-devices.def,
        using mcpu=FOO as the default CPU option.  Set target_cpu_default2.
        * doc/invoke.texi: Mention ColdFire in the introduction to the
        m68k options.  Document the new -march, -mcpu, -mtune, -mdiv,
        -mno-div and -mhard-float options.  Make -m68881 a synonym for
        -mhard-float.  Document the previously-undocumented -m5206e,
        -m528x, -m5307 and -m5407 options.  Tweak the existing option
        documentation for consistency.
        * doc/install.texi: Mention new --with-cpu arguments.
        * config/m68k/m68k.h (OPTION_DEFAULT_SPECS): Only use the
        default CPU if neither -mcpu nor -march are specified.
        (ASM_CPU_SPEC): Pass down -mcpu and -march options.
        (TARGET_CPU_CPP_BUILTINS): Set __mcfisa*__ macros from
        TARGET_ISA*.  Set the legacy __mcf*__ cpu macros in the same way,
        using m68k_tune to decide between families that implement the
        same ISA.  Use m68k_tune to set __mcfv4e__.
        (FL_BITFIELD, FL_68881, FL_COLDFIRE, FL_CF_HWDIV, FL_CF_MAC)
        (FL_CF_EMAC, FL_CF_EMAC_B, FL_CF_USP, FL_CF_FPU, FL_ISA_68000)
        (FL_ISA_68010, FL_ISA_68020, FL_ISA_68040, FL_ISA_A, FL_ISA_B)
        (FL_ISA_C, FL_ISA_MMU): New macros.
        (MASK_COLDFIRE): Delete.
        (TARGET_68010, TARGET_68020, TARGET_68040_ONLY, TARGET_COLDFIRE)
        (TARGET_ISAB): Redefine in terms of m68k_cpu_flags.
        (TARGET_68881, TARGET_COLDFIRE_FPU): Redefine in terms of m68k_fpu.
        (TARGET_HARD_FLOAT): Do not define here.
        (TARGET_ISAAPLUS, TARGET_ISAC): New macros.
        (TUNE_68000): New macro.
        (TUNE_68000_10): Redefine in terms of TUNE_68000 and TUNE_68010.
        (TUNE_68010, TUNE_68030, TUNE_68040, TUNE_68060, TUNE_CPU32)
        (TUNE_CFV2): Redefine in terms of m68k_tune.
        (uarch_type, target_device, fpu_type): New enums.
        (m68k_cpu, m68k_tune, m68k_fpu, m68k_cpu_flags): Declare.
        * config/m68k/m68k.c (TARGET_DEFAULT): Remove MASK_68881.
        (FL_FOR_isa_00, FL_FOR_isa_10, FL_FOR_isa_20, FL_FOR_isa_40)
        (FL_FOR_isa_cpu32, FL_FOR_isa_a, FL_FOR_isa_aplus, FL_FOR_isa_b)
        (FL_FOR_isa_c): New macros.
        (m68k_isa): New enum.
        (m68k_target_selection): New structure.
        (all_devices, all_isas, all_microarchs): New tables.
        (m68k_cpu_entry, m68k_arch_entry, m68k_tune_entry, m68k_cpu)
        (m68k_tune, m68k_fpu, m68k_cpu_flags): New variables.
        (MASK_ALL_CPU_BITS): Delete.
        (m68k_find_selection): New function.
        (m68k_handle_option): Handle -mcpu=, -march= and -mtune=.
        Map the legacy target options to a combination of the new ones.
        (override_options): Set m68k_cpu, m68k_tune, m68k_fpu and
        m68k_cpu_flags.  Handle M68K_DEFAULT_TUNE.  Use m68k_cpu_flags
        to derive default MASK_BITFIELD, MASK_CF_HWDIV and MASK_HARD_FLOAT
        settings.
        * config/m68k/m68k.opt (m5200, m5206e, m528x, m5307, m5407, mcfv4e)
        (m68010, m68020, m68020-40, m68020-60, m68030, m68040): Remove Mask
        properties.
        (m68881, msoft-float): Change mask from 68881 to HARD_FLOAT.
        (march=, mcpu=, mdiv, mhard-float, mtune=): New options.
        * config/m68k/m68k-devices.def: New file.

2007-01-12  Richard Sandiford  <richard@codesourcery.com>
            Nathan Sidwell  <nathan@codesourcery.com>

        * config/m68k/m68k.h (ASM_CPU_SPEC, ASM_SPEC, EXTRA_SPECS)
        (SUBTARGET_EXTRA_SPECS): New macros.
        * config/m68k/linux.h (ASM_SPEC): Remove CPU flags;
        use %(asm_cpu_spec) instead.
        * config/m68k/m68k-none.h (ASM_SPEC): Likewise.
        * config/m68k/openbsd.h (ASM_SPEC): Likewise.
        * config/m68k/netbsd-elf.h (ASM_SPEC): Likewise.
        (EXTRA_SPECS): Rename to...
        (SUBTARGET_EXTRA_SPECS): ...this.

2007-01-12  Nathan Sidwell  <nathan@codesourcery.com>
            Richard Sandiford  <richard@codesourcery.com>
            Julian Brown  <julian@codesourcery.com>

        * config.gcc (m68k-*-aout*, m68k-*-coff*, m68020-*-elf*, m68k-*-elf*)
        (m68k-*-uclinux*, m68k-*-linux*, m68k-*-rtems*): Set default_m68k_cpu
        to the configuration's default CPU.
        (m68010-*-netbsdelf*, m68k*-*-netbsdelf*, m68k*-*-openbsd*): Likewise.
        Remove default masks.
        (m680[012]0-*-*): Set the default with_cpu to the first part of
        the target name.
        (m68k*-*-*): Set the default with_cpu to m$default_m68k_cpu.
        (m68k*-*-linux): Extend the --with-cpu handling to...
        (m680[012]0-*-*, m68k*-*-*): ...these configurations.  Allow m68000
        and m68010.  Don't set target_cpu_default2.
        * doc/install.texi: Document --with-cpu for m68k.
        * config/m68k/m68k.h (OPTION_DEFAULT_SPECS): Define.
        * config/m68k/m68k-none.h (TARGET_CPU_DEFAULT, M68K_CPU_m68k)
        (M68K_CPU_m68000, M68K_CPU_m68010, M68K_CPU_m68020, M68K_CPU_m68030)
        (M68K_CPU_m68040, M68K_CPU_m68302, M68K_CPU_m68332, TARGET_DEFAULT)
        (ASM_CPU_DEFAULT_SPEC, CC1_CPU_DEFAULT_SPEC): Delete.
        (ASM_SPEC): Remove use of %(asm_cpu_default).
        (EXTRA_SPECS, SUBTARGET_EXTRA_SPECS, MULTILIB_DEFAULTS): Delete.
        * config/m68k/linux.h (TARGET_DEFAULT): Delete.
        (CPP_SPEC): Merge definitions.  Do not handle __HAVE_68881__ here.
        * config/m68k/netbsd-elf.h (TARGET_OS_CPP_BUILTINS): Define
        __HAVE_FPU__ if TARGET_HARD_FLOAT.
        (TARGET_DEFAULT): Delete.
        (EXTRA_SPECS): Delete cpp_cpu_default_spec, cpp_cpu_spec,
        cpp_fpu_spec, asm_default_spec and netbsd_cpp_spec.
        (CPP_CPU_SPEC): Delete.
        (TARGET_VERSION): Merge definitions, using TARGET_68010 to pick
        the appropriate string.
        (CPP_CPU_DEFAULT_SPEC, ASM_DEFAULT_SPEC, CPP_FPU_SPEC): Delete.
        (CPP_SPEC): Define to NETBSD_CPP_SPEC.
        (ASM_SPEC): Don't use %(asm_default_spec).
        * config/m68k/m68k.c (TARGET_DEFAULT_TARGET_FLAGS): Remove
        TARGET_DEFAULT and add MASK_68881.
        * config/m68k/m68k.md: Remove mention of TARGET_DEFAULT from comments.

2007-01-12  Richard Sandiford  <richard@codesourcery.com>

        * config.gcc (m68010-*-netbsdelf*): Add MASK_68010.
        (m68k*-*-netbsdelf*, m68k*-*-openbsd*, m68k*-linux*): Add
        MASK_68010 alongside MASK_68020.
        * doc/invoke.texi: Document -m68010.
        * config/m68k/m68k.opt (m68010): New.
        * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Define mc68010
        if TUNE_68010.
        (TUNE_68010): New macro.
        * config/m68k/m68k-none.h (M68K_CPU_m68k, M68K_CPU_m68010)
        (M68K_CPU_m68020, M68K_CPU_m68030, M68K_CPU_m68040)
        (M68K_CPU_m68332): Add MASK_68010.
        * config/m68k/linux.h (TARGET_DEFAULT): Add MASK_68010 to
        fallback definition.
        * config/m68k/netbsd-elf.h (CPP_CPU_SPEC): Remove now-redundant
        defines.
        * config/m68k/m68k.c (MASK_ALL_CPU_BITS): Add MASK_68010.
        (m68k_handle_option): Handle OPT_m68010.  Add MASK_68010
        to all entries that use MASK_68020.
        (output_move_simode_const, output_move_himode, output_move_qimode)
        (output_move_stricthi, output_move_strictqi): Use TARGET_68010
        instead of TARGET_68020 to select clr behavior.  Remove comment
        about there being no TARGET_68010.
        * config/m68k/m68k.md: Likewise throughout.

2007-01-12  Julian Brown  <julian@codesourcery.com>

        * config/m68k/m68k.h (TARGET_ISAB): New macro.
        * config/m68k/m68k.c: Use TARGET_ISAB rather than TARGET_CFV4.
        * config/m68k/m68k.md: Likewise.

2007-01-12  Julian Brown  <julian@codesourcery.com>

        * config/m68k/m68k.h (LEGITIMATE_INDEX_P, LEGITIMIZE_ADDRESS): Use
        TARGET_COLDFIRE_FPU instead of TARGET_CFV4E.

2007-01-12  Julian Brown  <julian@codesourcery.com>

        * config/m68k/m68k.h (TUNE_68040_60): New macro.
        * config/m68k/m68k.c (standard_68881_constant_p): Use it.
        * config/m68k/m68k.md: Likewise.

2007-01-12  Julian Brown  <julian@codesourcery.com>
            Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Use TUNE_68030
        instead of TARGET_68030, TUNE_68040 instead of TARGET_68040,
        TUNE_68060 instead of TARGET_68060 and TUNE_CPU32 instead of
        TARGET_CPU32.
        (TARGET_CPU32): Rename to...
        (TUNE_CPU32): ...this.
        (TUNE_68000_10, TUNE_68030, TUNE_68040, TUNE_68060)
        (TUNE_CFV2): New macros.
        * config/m68k/netbsd-elf.h (LONG_DOUBLE_TYPE_SIZE): Simplify;
        remove conditions that are implied by TARGET_68020.
        * config/m68k/m68k.c (m68k_output_function_prologue): Use TUNE_68040
        instead of TARGET_68040 and TUNE_CPU32 instead of TARGET_CPU32.
        (m68k_output_function_epilogue): Likewise.
        (m68k_rtx_costs): Likewise.  Use TUNE_68060 instead of TARGET_68060
        and TUNE_CFV2 instead of TARGET_5200.  Use TUNE_68000_10 instead of
        "!TARGET_68020 && !TARGET_COLDFIRE" to choose between 68000 and
        non-68000 timings.  Refactor multiplication and division costs.
        (output_addsi3): Use TUNE_68040 instead of TARGET_68040 and
        TUNE_CPU32 instead of TARGET_CPU32.
        (standard_68881_constant_p): Use TUNE_68040 instead of TARGET_68040
        and TUNE_68060 instead of TARGET_68060.
        * config/m68k/m68k.md: Use TUNE_68040 instead of TARGET_68040,
        TUNE_68060 instead of TARGET_68060, and TUNE_CPU32 instead of
        TARGET_CPU32.
        (movsi_const0): Use TUNE_68000_10 rather than "!TARGET_68020
        && !TARGET_COLDFIRE" to choose between moveq and clr.
        Likewise in the unnamed movsf pattern.
        (ashlsi_17_24, lshrsi_17_24): Guard with TUNE_68000_10 rather than
        "!TARGET_68020 && !TARGET_COLDFIRE".  Likewise the unnamed
        ashiftrt pattern.

2007-01-12  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Increase amount
        of tabbing before backslashes.

2007-01-11  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa-linux.h (ASM_OUTPUT_INTERNAL_LABEL): Undefine.
        * pa.h (ASM_OUTPUT_LABEL): Output colon when using GAS.
        (ASM_OUTPUT_INTERNAL_LABEL): Define.

2007-01-11  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-ssa-loop-ivopts.c (extract_cond_operands): Split from
        find_interesting_uses_cond.
        (find_interesting_uses_cond): Use extract_cond_operands.
        (rewrite_use_compare): Use extract_cond_operands and
        force_gimple_operand_bsi.  Do not call update_stmt.
        (determine_use_iv_cost_condition): Use extract_cond_operands.
        Return cheaper of using original bound and changing the exit bound.

2007-01-11  Zdenek Dvorak <dvorakz@suse.cz>

        PR tree-optimization/29516
        * tree-ssa-address.c (tree_mem_ref_addr, add_to_parts,
        most_expensive_mult_to_index, addr_to_parts,
        create_mem_ref, maybe_fold_tmr): Make the type of
        fields of TARGET_MEM_REF sizetype.
        (move_fixed_address_to_symbol, move_pointer_to_base):
        New functions.
        * tree.def (TARGET_MEM_REF): Add comment on types of
        the operands.

2007-01-11  Joseph Myers  <joseph@codesourcery.com>

        * c-common.c (vector_types_convertible_p): Treat opaque types as
        always convertible if they have the same size, but not otherwise.

2007-01-11  Steven Bosscher  <steven@gcc.gnu.org>

        * ifcvt.c (struct noce_if_info): Add comments to the fields.
        Remove the b_unconditional field.
        (noce_try_sign_mask): Do not look at b_unconditional.
        (noce_process_if_block): Do not use merge_if_blocks.  Update
        the CFG here.  Do not set b_unconditional.
        (cond_move_process_if_block): Likewise.
        (find_cond_trap): Likewise.
        (check_cond_move_block): Require simple jump insns at the end
        of the basic block.

2007-01-11  Jan Hubicka  <jh@suse.cz>

        PR tree-optimization/1046
        * tree-tailcall.c (suitable_for_tail_call_opt_p): Use TREE_ADDRESSABLE
        when alias info is not ready.
        (pass_tail_recursion): Do not require aliasing.
        * tree-ssa-copyrename.c (pass_rename_ssa_cop): Likewise.
        * tree-ssa-ccp.c (pass_ccp, pass_fold_builtins): Likewise.
        * tree-ssa-copy.c (pass_copy_prop): Likewise.
        * tree-ssa-forwprop.c (pass_forwprop): Likewise.
        * tree-ssa-dce.c (pass_dce, pass_dce_loop, pass_cd_dce): Likewise.
        * passes.c (init_optimization_passes): Execute rename_ssa_copies,
        ccp, forwprop, copy_prop, merge_phi, copy_prop, dce and tail recursion
        before inlining.
        * tree-ssa-operands.c (add_virtual_operand, get_indirect_ref_operand):
        When aliasing is not build, mark statement as volatile.

2007-01-11  Tom Tromey  <tromey@redhat.com>

        PR preprocessor/15185, PR preprocessor/20989:
        * doc/cppopts.texi <-MT>: Update description of algorithm for
        computing default target.
        <-M, -MD>: Reword "basename" text.

2007-01-11  Roger Sayle  <roger@eyesopen.com>

        * builtins.c (expand_builtin_pow, expand_builtin_powi,
        fold_builtin_cabs, fold_builtin_sqrt, fold_builtin_trunc,
        fold_builtin_floor, fold_builtin_ceil, fold_builtin_round,
        fold_builtin_int_int_roundingfn, fold_builtin_bitop,
        fold_builtin_bswap, real_constp, fold_builtin_pow,
        fold_builtin_powi, fold_builtin_signbit, fold_builtin_copysign,
        do_mpfr_arg1, do_mpfr_arg2, do_mpfr_arg3, do_mpfr_sincos): Replace
        uses of the macro TREE_CONSTANT_OVERFLOW with TREE_OVERFLOW.
        * convert.c (convert_to_pointer): Likewise.
        * expr.c (highest_pow2_factor, expand_expr_real_1): Likewise.
        * fold-const.c (force_fit_type, fold_negate_expr, int_const_binop,
        const_binop, fold_convert_const_int_from_int,
        fold_convert_const_int_from_real,
        fold_convert_const_real_from_real, sign_bit_p,
        optimize_minmax_comparison, extract_muldiv_1, fold_div_compare,
        fold_sign_changed_comparison, fold_unary, fold_comparison,
        fold_binary, multiple_of_p, tree_Expr_non_zero_p,
        fold_negate_const, fold_abs_const, fold_not_const): Likewise.
        * print-tree.c (print_node_brief, print_node): Likewise.
        * stor-layout.c (place_field, layout_type): Likewise.
        * tree-chrec.c (keep_cast): Likewise.
        * tree.c (build_vector, build_real, build_real_from_int_cst,
        build_complex): Likewise.

2007-01-11  Roger Sayle  <roger@eyesopen.com>

        * tree.h (TREE_CONSTANT_OVERFLOW): Obsolete.  For the time being,
        treat TREE_CONSTANT_OVERFLOW as a synonym of TREE_OVERFLOW.

2007-01-11  Paolo Bonzini  <bonzini@gnu.org>

        * configure.ac (strict1_warn): Rename to strict_warn.
        (WERROR, --enable-werror, symlink hacks, stage1_cflags,
        cc_set_by_configure, quoted_cc_set_by_configure,
        stage_prefix_set_by_configure, quoted_stage_prefix_set_by_configure,
        all_boot_languages, all_stagestuff): Remove.
        (target_list): Remove bootstrap targets.
        * Makefile.in (quickstrap): Unconditionally make a synonym of all.
        (BOOT_LANGUAGES, STAGE1_CFLAGS, STAGE1_CHECKING,
        REMAKEFLAGS, FLAGS_TO_PASS, PREPEND_DOTDOT_TO_RELATIVE_PATHS,
        SUBDIR_FLAGS_TO_PASS, WERROR_FLAGS, STRICT2_WARN, LANG_STAGESTUFF,
        VOL_FILES, POSTSTAGE1_FLAGS_TO_PASS, STAGE2_FLAGS_TO_PASS,
        STAGEPROFILE_FLAGS_TO_PASS, STAGEFEEDBACK_FLAGS_TO_PASS, stage1_build,
        stage1_copy, stage2_build, stage2_copy, stageprofile_build,
        stageprofile_copy, stage3_build, stage3_copy, stagefeedback_build,
        stagefeedback_copy, stage4_build, clean_s1, clean_sw, bootstrap,
        bootstrap-lean, bootstrap2, bootstrap2-lean, bootstrap3,
        bootstrap3-lean, bootstrap4, bootstrap4-lean, unstage1, unstage2,
        unstage3, unstage4, unstageprofile, unstagefeedback, restage, restage2,
        restage3, restage4, restageprofile, restagefeedback, bubbleestrap,
        cleanstrap, unstrap, restrap, *compare, *compare3, *compare4,
        *compare-lean, *compare3-lean, *compare4-lean, stage1-start, stage1,
        stage2-start, stage2, stage3-start, stage3, stage4-start, stage4,
        stageprofile-start, stageprofile, stagefeedback-start, stagefeedback,
        risky-stage1, risky-stage2, risky-stage3, risky-stage4): Remove.
        (ORDINARY_FLAGS_TO_PASS): Rename to FLAGS_TO_PASS.
        (STAGECOPYSTUFF, STAGEMOVESTUFF): Consolidate into MOSTLYCLEANFILES.
        (mostlyclean): Adjust.
        (clean, distclean): Don't mention bootstrap stuff.
        * configure: Regenerate.
        * ada/config-lang.in, cp/config-lang.in, forttran/config-lang.in,
        java/config-lang.in, objc/config-lang.in, objcp/config-lang.in,
        treelang/config-lang.in (stagestuff): Remove.
        * doc/sourcebuild.texi (stage1, stage2, stage3, stage4,
        stageprofile, stagefeedback, stagestuff): Remove mention.

2007-01-11  Nick Clifton  <nickc@redhat.com>

        * config/mcore/predicates.md (mcore_general_movesrc_operand):
        Accept CONSTs.
        (mcore_general_movdst_operand): Do not accept CONST_INTs.
        (mcore_arith_K_S_operand): Run the test for the S constraint not
        the test for the M constraint.
        (mcore_addsub_operand): Do not accept integer values that are
        larger than 32 bits.
        * config/mcore/mcore.md: Remove unused constraints from split.
        (andsi3): Use HOST_WIDE_INT instead of int to hold an INTVAL.
        (addsi3): Likewise.
        (allocate_stack): Likewise.
        * config/mcore/mcore.c (mcore_print_operand): Restrict output of P
        operands to 32 bits.
        (mcore_const_costs): Use HOST_WIDE_INT instead of int to hold an
        INTVAL.
        (mcore_and_cost, mcore_modify_comparison, const_ok_for_mcore,
        mcore_const_ok_for_inline, mcore_const_trick_uses_not,
        try_constant_tricks, mcore_num_ones, mcore_num_zeros,
        mcore_output_bclri, mcore_output_andn, output_inline_const,
        mcore_output_move, mcore_output_movedouble): Likewise.
        (mcore_output_cmov): Use CONST_OK_FOR_M and CONST_OK_FOR_N.
        (output_inline_const): Likewise.
        (output_inline_const): Fix format strings used in sprintf
        statements.
        * config/mcore/mcore-protos.h: Update prototypes for changed
        functions in mcore.c.
        * config/mcore/mcore.h (CONST_OK_FOR_I): Cast values to
        HOST_WIDE_INT and not int.
        (CONST_OK_FOR_J, CONST_OK_FOR_K, CONST_OK_FOR_L, CONST_OK_FOR_M,
        CONST_OK_FOR_N): Likewise.
        (LEGITIMATE_CONSTANT_P): Also check CONSTANT_P.
        (GO_IF_LEGITIMATE_INDEX): Use HOST_WIDE_INT instead of int to hold
        an INTVAL.

2007-01-10  Jan Hubicka  <jh@suse.cz>

        * tree-vrp.c (remove_range_assertions): Release defs.
        * tree-ssa-loop-ivopts.c (rmeove_statement): Likewise.
        * tree-ssa-dom.c (remove_stmt_or_phi): Likewise.

2007-01-10  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.c (arm_rtx_costs_1): Handle mutiply-subtract.
        * config/arm/arm.md (mulsi3subsi): New insn.

2007-01-10  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-ssa-loop-manip.c (tree_unroll_loop): Make it a wrapper over ...
        (tree_transform_and_unroll_loop): New.
        * tree-flow.h (transform_callback, tree_transform_and_unroll_loop):
        Declare.

2007-01-10  Robert Kennedy <jimbob@google.com>

        * fold-const.c (fold_comparison): Fold comparisons like (x *
        1000 < 0) to (x < 0).

2007-01-10  Ian Lance Taylor  <iant@google.com>

        * tree-pretty-print.c (dump_generic_node): Print parentheses when
        operands have the same priority.

2007-01-10  Tom Tromey  <tromey@redhat.com>

        * fold-const.c (fold_truthop): Don't check can_use_bit_fields_p.
        (fold_binary): Likewise.
        * langhooks.c (lhd_can_use_bit_fields_p): Removed.
        * langhooks-def.h (lhd_can_use_bit_fields_p): Removed.
        (LANG_HOOKS_CAN_USE_BIT_FIELDS_P): Removed.
        (LANG_HOOKS_INITIALIZER): Remove LANG_HOOKS_CAN_USE_BIT_FIELDS_P.
        * langhooks.h (struct lang_hooks): Removed field
        'can_use_bit_fields_p'.

2007-01-10  Ralf Corsépius <ralf.corsepius@rtems.org>

        * config/bfin/t-bfin, config/bfin/t-bfin-elf: Remove GCC_CFLAGS.

2007-01-10  Razya Ladelsky  <razya@il.ibm.com>

        * function.c (get_last_funcdef_no): New function.
        * function.h (get_last_funcdef_no): Declare.
        * tree-inline.c (initialize_cfun): Add initialization.
        (tree_function_versioning): Cleanup.

2007-01-10  Jan Hubicka  <jh@suse.cz>

        * tree-inline.c (setup_one_parameter): Do not propagate into abnormal
        PHIs.

2007-01-10  Sa Liu  <saliu@de.ibm.com>
            Ben Elliston  <bje@au.ibm.com>

        * spu.h (STACK_SAVE_AREA): Use VOIDmode for SAVE_FUNCTION, SImode
        for SAVE_NONLOCAL and Pmode for any other save level.
        * spu-protos.h (spu_restore_stack_block): Declare.
        * spu.md (save_stack_block): Remove.
        (restore_stack_block): Call spu_restore_stack_block.
        * spu.c (spu_restore_stack_block): New function.
        (spu_expand_epilogue): Remove old comment.

2007-01-09  Zdenek Dvorak <dvorakz@suse.cz>

        PR tree-optimization/30322
        * tree-ssa-loop-ivopts.c (fold_affine_expr, iv_value): Removed.
        (cand_value_at): Return the value as aff_tree.
        (may_eliminate_iv): Convert the bound from aff_tree to tree.
        * tree-affine.c (aff_combination_add_cst, aff_combination_add_product,
        aff_combination_mult): New functions.
        (aff_combination_add): Use aff_combination_add_cst.
        (aff_combination_convert): Allow conversions to a wider type.
        (tree_to_aff_combination): Handle BIT_NOT_EXPR.
        * tree-affine.h (aff_combination_mult): Declare.

2007-01-09  Carlos O'Donell  <carlos@codesourcery.com>

        * doc/tm.texi: Update documentation to reflect reality of exec
        and start file search behaviours. Update copyright year.
        * doc/invoke.texi: Explain how GCC_EXEC_PREFIX is used to find
        header file directories.

2007-01-09  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*sinxf2): Rename to *sinxf2_i387.
        (*cosxf2): Rename to cosxf2_i387.
        (*sindf2, *sinsf2): Extend operand 1 to XFmode.  Macroize patterns
        using X87MODEF12 mode macro. Rename patterns to
        *sin_extend<mode>xf2_i387.  Use SSE_FLOAT_MODE_P to disable patterns
        for SSE math.
        (*cosdf2, *cossf2): Ditto.
        (sincosdf3, sincossf3): Ditto.  Rewrite corresponding splitters
        to match extended input operands.
        (sincos<mode>3): New expander.
        (*sinextendsfdf2, *cosextendsfdf2, *sincosextendsfdf3): Remove
        insn patterns and corresponding splitters.

2007-01-09  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/t-linux (TARGET_LIBGCC2_CFLAGS): Delete.
        (SHLIB_MAPFILES, SHLIB_LINK, SHLIB_INSTALL): Likewise.

2007-01-09  Nicolas Pitre  <nico@cam.org>

        PR target/30173
        * arm/ieee754-df.S (Lad_s): Also test the low word of X for zero.

2007-01-08  Geoffrey Keating  <geoffk@apple.com>

        * target.h (struct gcc_target): New field library_rtti_comdat.
        * target-def.h (TARGET_CXX_LIBRARY_RTTI_COMDAT): New.
        (TARGET_CXX): Add TARGET_CXX_LIBRARY_RTTI_COMDAT.
        * doc/tm.texi (C++ ABI): Document TARGET_CXX_LIBRARY_RTTI_COMDAT.
        * config/darwin.h (TARGET_CXX_LIBRARY_RTTI_COMDAT): Define.

2007-01-08  Geoffrey Keating  <geoffk@apple.com>

        * doc/invoke.texi (Optimize Options): Correct description of -O0.

2007-01-08  Richard Guenther  <rguenther@suse.de>

        * tree.h (force_fit_type_double): Export.
        (force_fit_type): Remove.
        * fold-const.c (force_fit_type_double): New function.
        (force_fit_type): Remove.
        (int_const_binop): Use it.
        (fold_convert_const_int_from_int): Likewise.
        (fold_convert_const_int_from_real): Likewise.
        (fold_div_compare): Likewise.
        (fold_sign_changed_comparison): Likewise.
        (fold_unary): Likewise.
        (fold_negate_const): Likewise.
        (fold_abs_const): Likewise.
        (fold_not_const): Likewise.
        * c-common.c (shorten_compare): Use force_fit_type_double.
        * convert.c (convert_to_pointer): Likewise.

2007-01-08  Richard Guenther  <rguenther@suse.de>

        * tree.h (build_int_cst_wide_type): Export.
        * tree.c (build_int_cst_wide_type): New function.
        (build_int_cst_wide): Fix comment.
        * builtins.c (fold_builtin_object_size): Use build_int_cst
        to build -1 or 0 of the correct type.  Use fit_double_type
        to check for overflow.
        * fold-const.c (optimize_bit_field_compare): Use build_int_cst_type
        to build the mask.
        (decode_field_reference): Likewise.
        (all_ones_mask_p): Likewise.
        (native_interpret_int): Use build_int_cst_wide_type.
        (fold_binary): Use build_int_cst_type to build an all-ones
        value.
        * stor-layout.c (set_sizetype): Use build_int_cst_wide_type.

2007-01-08  Daniel Jacobowitz  <dan@codesourcery.com>

        * config/pa/t-pa64 (libgcc_stub.a): Use $(T).

2007-01-09  Ben Elliston  <bje@au.ibm.com>

        * genautomata.c (STATS_OPTION): New option.
        (stats_flag): New flag.
        (gen_automata_option): Handle it.
        (initiate_automaton_gen): Ditto.
        (write_automata): Output statistics only if stats_flag is
        set. Likewise, output time statistics only if time_flag is set.
        * doc/md.texi (Processor pipeline description): Document new flag.

2007-01-08  Richard Guenther  <rguenther@suse.de>

        * builtins.c (fold_builtin_int_roundingfn): Use fit_double_type.
        * tree.c (build_int_cst_type): Likewise.
        (size_in_bytes): Don't call force_fit_type on the result.
        (int_fits_type_p): Use fit_double_type.
        * fold-const.c (fit_double_type): New function.
        (force_fit_type): Use it.
        * tree.h (fit_double_type): Export.

2007-01-08  Jan Hubicka  <jh@suse.cz>

        * tree-vectorizer.c (gate_increase_alignment): Fix return type.
        * ipa.c (function_and_variable_visibility): Fix return type.

2007-01-08  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-ccp.c (maybe_fold_offset_to_array_ref): Use type
        of offset to build the index.
        * tree-pretty-print.c (dump_generic_node): Don't build negated
        const just for printing.
        * c-pretty-print.c (pp_c_integer_constant): Likewise.
        * builtins.c (fold_builtin_int_roundingfn): Check if result
        fits the type by using force_fit_type and comparing the result.
        * predict.c (predict_loops): Use compare_tree_int for comparison.
        * tree.c (build_int_cst): Fall back to integer_type_node for
        NULL_TREE type.
        (build_int_cst_wide): Assert type is non-null.

2007-01-08  Roberto Costa  <roberto.costa@st.com>

        * tree-vrp.c (extract_range_from_cond_expr): New.
        (extract_range_from_expr): Handle COND_EXPR nodes used as expressions.
        * tree-ssa-ccp.c (get_maxval_strlen): Handle COND_EXPR nodes used
        as expressions.
        (fold_stmt): Bug fix, avoid infinite recursion when folding COND_EXPRs.
        * tree-ssa-forwprop.c (simplify_cond, forward_propagate_into_cond,
        tree_ssa_forward_propagate_single_use_vars): Handle COND_EXPR nodes
        used as expressions.
        * tree-object-size.c (cond_expr_object_size): New.
        (collect_object_sizes_for): Handle COND_EXPR nodes used as expressions.

2007-01-08  Jan Hubicka  <jh@suse.cz>

        * tree-ssa-forwprop.c (forward_propagate_into_cond,
        tree_ssa_forward_propagate_single_use_va): Release defs of propagated
        statement.

2007-01-08  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/23603
        * tree-vrp.c (set_value_range_to_truthvalue): New function.
        (extract_range_from_binary): Fall back to truthvalue instead of
        varying for TRUTH_*_EXPR.
        (extract_range_from_comparison): Fall back to truthvalue instead of
        varying.
        (vrp_visit_phi_node): Don't adjust new range bounds to +INF/-INF
        if all visited PHI values were constant.

2007-01-08  Jan Hubicka  <jh@suse.cz>

        * cgraphunit.c (cgraph_process_new_functions): Reset reachable flag.
        (cgraph_analyze_function): break out from ...
        (cgraph_finalize_compilation_unit): ... here.
        (cgraph_expand_function): Remove forgoten commented out line.
        (cgraph_optimize): Analyze functions.

2007-01-08  Jan Hubicka  <jh@suse.cz>

        * tree-pas.h (TODO_remove_function): New flag.
        (TODO_update*): Renumber.
        (pass_ipa_increase_alignment,
        pass_ipa_function_and_variable_visibility): New passes.
        * cgraphunit.c (cgraph_increase_alignment): Move to tree-vectorizer.c
        (cgraph_function_and_variable_visibility): Move to ipa.c
        (cgraph_optimize): Don't call cgraph_function_and_variable_visibility,
        cgraph_increase_alignment.
        * ipa-inline.c (cgraph_decide_inlining): Don't push timevar.
        (cgraph_decide_inlining_incrementally): Push TV_INTEGRATION before
        calling tree-inline.
        (cgraph_early_inlining): Do not call cgraph_remove_unreachable_nodes.
        (pass_ipa_inline, pass_early_ipa_inlining): Set TODO_remove_functions
        * tree-vectorizer.c (increase_alignment): Move here from cgraphunit.c
        (gate_increase_alignment): New function.
        (pass_ipa_increase_alignment): New pass.
        * ipa.c: Inline tree-pass.h and timevar.h
        (function_and_variable_visibility): Move here from cgraphunit.c
        * tree-optimize.c (pass_early_local_passes): Add TODO_remove_functions.
        * passes.c (init_optimization_passes): Add the two new passes.
        (execute_todo): Handle cgraph_remove_functions.

2007-01-08  Nick Clifton  <nickc@redhat.com>

        * config/frv/predicates.md (reg_or_0_operand): Accept
        CONST_DOUBLEs.

2007-01-08  Ralf Corsépius <ralf.corsepius@rtems.org>

        * config/bfin/rtems.h, config/bfin/t-rtems: New.
        * config.gcc: Add bfin*-rtems*.

2007-01-08  Mark Shinwell  <shinwell@codesourcery.com>

        * c.opt: Add -flax-vector-conversions.
        * c-typeck.c (convert_for_assignment): Pass flag to
        vector_types_convertible_p to allow emission of note.
        (digest_init): Likewise.
        * c-opts.c: Handle -flax-vector-conversions.
        * c-common.c (flag_lax_vector_conversions): New.
        (vector_types_convertible_p): Unless -flax-vector conversions
        has been passed, disallow conversions between vectors with
        differing numbers of subparts and/or element types.  If such
        a conversion is disallowed, possibly emit a note on the first
        occasion only to inform the user of -flax-vector-conversions.
        The new last argument specifies this.
        * c-common.h (flag_lax_vector_conversions): New.
        (vector_types_convertible_p): Add extra argument.
        * config/i386/i386.c (ix86_init_mmx_sse_builtins): Use
        char_type_node for V*QI type vectors.
        * config/rs6000/rs6000-c.c (altivec_overloaded_builtins):
        Update to satisfy new typechecking rules.
        * config/rs6000/altivec.h (vec_cmple): Use vec_cmpge, for both
        C and C++ variants.
        * doc/invoke.texi (C Dialect Options): Document
        -flax-vector-conversions.

2007-01-08  Mark Shinwell  <shinwell@codesourcery.com>

        PR tree-optimization/29877
        * tree-ssa-ter.c (is_replaceable_p): Deem assignments with
        a register variable on the RHS to not be replaceable.

2007-01-08  Chen Liqin  <liqin@sunnorth.com.cn>
        * config/score/t-score-elf (MULTILIB_OPTIONS): Change.
        * config/score/predicates.md (const_uimm5, sr0_operand, const_simm12,
        const_simm15, const_pow2, const_npow2): Added.
        * config/score/misc.md (insv, extv, extzv, movmemsi,
        move_lbu_a/b, mov_lhu_a/b etc): Added and fix some bug.
        * config/score/score.c (score_address_cost, score_select_cc_mode):
        Added.
        Change CONST_OK_FOR_LETTER_P/EXTRA_CONSTRAINT define.
        Update score_rtx_costs for MACRO TARGET_RTX_COSTS.
        Update score_print_operand.
        * config/score/score.h (DATA_ALIGNMENT, SELECT_CC_MODE): Added.
        Adjust register allocate order and update some macro define.
        * config/score/score-mdaux.c (mdx_unaligned_load, mdx_unsigned_store,
        mdx_block_move_straight, mdx_block_move_loop_head,
        mdx_block_move_loop_body, mdx_block_move_loop_foot, mdx_block_move_loop,
        mdx_block_move): Added.
        (mdx_movsicc, mdp_select_add_imm, mdp_select, mds_zero_extract_andi,
        mdp_limm): Updated and fix some bug and typo.
        * config/score/score.md (movqi/hi/si, add/sub/zero/ext): Updated.
        (movsf, movdf, doloop_end): Added.

2007-01-08  Kazu Hirata  <kazu@codesourcery.com>

        * config/arm/arm.c, config/arm/arm.h, config/arm/arm.md,
        config/arm/thumb2.md: Fix comment typos.
        * doc/extend.texi: Fix a typo.

2007-01-07  Eric Christopher  <echristo@apple.com>

        * configure.ac: Check for __stack_chk_fail for darwin.
        * configure: Regenerate.

2007-01-07  Richard Guenther  <rguenther@suse.de>

        * tree-vrp.c (extract_range_from_assert): CSE calls to
        compare_values where possible.
        (extract_range_from_unary_expr): Likewise.

2007-01-07  Anatoly Sokolov <aesok@post.ru>

        * config/avr/avr-protos.h (call_insn_operand): Delete prototype.
        * config/avr/avr.c (call_insn_operand): Delete function.
        * config/avr/avr.md (*pushqi, *pushhi, *pushsi, *pushsf): Use REG_SP
        instead of register number. Use predicates.
        * config/avr/predicates.md (const0_operand, reg_or_0_operand,
        call_insn_operand): Add.

2007-01-06  Jan Hubicka  <jh@suse.cz>

        * tree-pass.h (pass_build_cgraph_edges): Declare.
        * cgraphunit.c (record_refernece): Move to cgraphbuild.c
        (visited_nodes): Remove.
        (cgraph_create_edges): Move to cgraphbuild.c; rename to
        build_cgrpah_edges; make visited_nodes local.
        (cgraph_process_new_functions): DO not call initialize_inline_failed.
        (record_references_in_initializer): Move to cgraphbuild.c
        (initialize_inline_failed, rebuild_cgraph_edges,
        pass_rebuild_cgraph_edges): Move to cgraphbuild.c.
        (verify_cgraph_node): Make visited_nodes local.
        (cgraph_analyze_function): Do not call cgraph_create_edges and
        initialize_inline_failed.
        (cgraph_expand_function): Do not call cgraph_lower_function;
        assert that function is already lowered.
        * Makefile.in (cgraphbuild.o): New.
        * passes.c (init_optimization_passes): Add pass_build_cgraph_edges
        at the end of lowering passes.

2007-01-06  Steven Bosscher  <steven@gcc.gnu.org>

        * ifcvt.c (cond_move_convert_if_block): New function, code
        factored out from...
        (cond_move_process_if_block): ...here.  Call the new function
        on the THEN and ELSE blocks.
        (merge_if_block): Do not copy global_live_at_end, merge_blocks
        already takes care of this.

2007-01-05  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR c/19978
        * tree.h (TREE_OVERFLOW_P): New.
        * c-typeck.c (parser_build_unary_op): Warn only if result
        overflowed and operands did not.
        (parser_build_binary_op): Likewise.
        (convert_for_assignment): Remove redundant overflow_warning.
        * c-common.c (overflow_warning): Don't check or set TREE_OVERFLOW.

2007-01-05  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * c-typeck.c (store_init_value): Split over two lines to follow
        the GNU coding style.

2007-01-05  Benjamin Kosnik  <bkoz@redhat.com>

        * c-cppbuiltin.c (c_cpp_builtins): __GXX_EXPERIMENTAL_CPP0X__ to
        __GXX_EXPERIMENTAL_CXX0X__.
        * doc/cpp.texi: Same.

2007-01-05  Richard Guenther  <rguenther@suse.de>

        PR middle-end/27826
        * tree.c (get_narrower): Do not construct COMPONENT_REFs
        with mismatched types.  Instead explicitly build a
        conversion NOP_EXPR.

2007-01-05  Ian Lance Taylor  <iant@google.com>

        * c-common.c (decl_with_nonnull_addr_p): New function.
        (c_common_truthvalue_conversion): Call it.
        * c-typeck.c (build_binary_op): Likewise.
        * c-common.h (decl_with_nonnull_addr_p): Declare.

2007-01-05  Jakub Jelinek  <jakub@redhat.com>

        PR c/30360
        * libgcc2.c (__divdc3): Compare c and d against 0.0 instead of
        denom against 0.0.

2007-01-05  Joel Brobecker  <brobecker@adacore.com>

        * doc/install.texi (Final install): Document the fact that
        the GNAT runtime should not be stripped.

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

        * tree-inline.c (fold_marked_statements): Update operand caches
        and EH after folding

2007-01-04  Ian Lance Taylor  <iant@google.com>

        * c-common.c (check_function_nonnull): Whitespace fix.

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

        * tree-optimize.c (execute_fixup_cfg): Correct previously mistakely
        comitted older version of patch.
        (pass_fixup_cfg): Add TODOs to verify flow and statements, dump
        function, celanup cfg and collect garbage.

2007-01-04  Mike Stump  <mrs@apple.com>

        * Makefile.in (mostlyclean): Don't remove libgcc anymore.
        (clean): Likewise.

2007-01-04  Eric Christopher  <echristo@apple.com>

        * libgcc2.c (__bswapsi2): Use SItype.
        (__bswapdi2): Use DItype.
        * libgcc2.h: Update for above.

2007-01-04  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.md (arm_mulsi3, thumb_mulsi3, mulsi3_compare0,
        mulsi_compare0_scratch, mulsi3addsi, mulsi3addsi_compare0,
        mulsi3addsi_compare0_scratch, mulsidi3adddi, mulsidi3,
        umulsidi3, umulsidi3adddi, smulsi3_highpart,
        umulsi3_highpart): Make conditional on !arm_arch6.
        (arm_mulsi3_v6, thumb_mulsi3_v6, mulsi3_compare0_v6,
        mulsi_compare0_scratch_v6, mulsi3addsi_v6, mulsi3addsi_compare0_v6,
        mulsi3addsi_compare0_scratch_v6, mulsidi3adddi_v6, mulsidi3_v6,
        umulsidi3_v6, umulsidi3adddi_v6, smulsi3_highpart_v6,
        umulsi3_highpart_v6): New insns.

2007-01-04  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (fold_convert): When casting an expression to void,
        fold_ignored_result may discover a GIMPLE_MODIFY_STMT which doesn't
        have a type.  Instead of attempting to build a NOP_EXPR, return
        these "special" trees directly.

2007-01-04  Joseph Myers  <joseph@codesourcery.com>

        * config/rs6000/rs6000.c (rs6000_rtx_costs): Make adjustment for
        MULT inside MINUS as either argument.  Use rs6000_cost->dmul -
        rs6000_cost->fp not 0 as adjustment for outer NEG.

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

        * cgraph.c (cgraph_release_function_body): New function.
        (cgraph_remove_node): Use it.
        * cgraph.h (cgraph_release_function_body): Declare.
        * cgraphunit.c (cgraph_expand_function): Use it.
        * ipa.c (cgraph_remove_unreahchable_nodes): Use it.
        * tree-ssa.c (delete_tree_ssa): Allow to be called before aliasing
        is initialized and while compilation of other function is running.
        * tree-optimize.c (execute_free_cfg_annotations): Move code to clear
        statement CFG annotations from here to ...
        * tree-cfg.c (delete_tree_cfg_annotations): ... here.

2007-01-04  Zdenek Dvorak <dvorakz@suse.cz>

        * cfgloop.h (enum li_flags): Make the constants powers of two.

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

        * tree-inline.c (copy_bb): Insert new statements to statements_to_fold
        set.
        (fold_marked_statements): New function.
        (optimize_inline_calls, tree_function_versioning): Fold new statements.
        * tree-inline.h (copy_body_data): Add statements_to_fold.

2007-01-03  Daniel Jacobowitz  <dan@codesourcery.com>

        * config.gcc: Mention libgcc/config.host.
        * Makefile.in: Update comments mentioning libgcc.
        (LIBGCC, INSTALL_LIBGCC, GCC_PARTS, mklibgcc): Delete.
        (all.cross, start.encap, rest.encap, rest.cross): Update
        dependencies for libgcc move.
        (libgcc.mk, LIBGCC_DEPS, libgcov.a, libgcc.a, stmp-multilib)
        (clean-target, clean-target-libgcc): Delete.
        (srcdirify, GCC_EXTRA_PARTS): New macros.
        (libgcc-support, libgcc.mvars): New rules.
        (distclean): Remove mention of mklibgcc.
        (install): Don't reference INSTALL_LIBGCC.
        (install-common): Don't reference EXTRA_PARTS.
        (install-libgcc, install-multilib): Delete rules.
        * mklibgcc.in: Delete file.
        * doc/configfiles.texi: Don't mention mklibgcc.

        * config/i386/t-darwin (SHLIB_VERPFX): Delete (moved to libgcc).
        * config/i386/t-darwin64 (SHLIB_VERPFX): Likewise.
        * config/rs6000/t-darwin (SHLIB_VERPFX): Likewise.
        * config/rs6000/t-ppccomm (TARGET_LIBGCC2_CFLAGS, SHLIB_MAPFILES)
        (mklibgcc, ldblspecs): Likewise.

        * config/i386/t-nwld (libgcc.def, libc.def, libpcre.def)
        (posixpre.def): Use $(T).
        (SHLIB_EXT, SHLIB_NAME, SHLIB_SLIBDIR_QUAL, SHLIB_DEF, SHLIB_MAP)
        (SHLIB_SRC, SHLIB_INSTALL): Delete.
        (SHLIB_LINK): Make dummy.
        * config/t-slibgcc-darwin: Delete contents except for dummy SHLIB_LINK.

        * config/frv/t-linux (EXTRA_MULTILIB_PARTS): Clear.

        * config/alpha/t-crtfm: Use $(T) in rules for EXTRA_PARTS.
        * config/alpha/t-vms, config/alpha/t-vms64, config/fr30/t-fr30,
        config/i386/t-rtems-i386, config/ia64/t-ia64, config/rs6000/t-beos,
        config/rs6000/t-newas, config/sparc/t-elf: Likewise.

        * configure.ac (all_outputs): Remove mklibgcc.
        * configure: Regenerated.

2007-01-03  Josh Conner  <jconner@apple.com>

        PR middle-end/29683
        * calls.c (compute_argument_addresses): Set stack and stack_slot
        for partial args, too.
        (store_one_arg): Use locate.size.constant for the size when
        generating a save_area.

2007-01-03  Robert Kennedy <jimbob@google.com>

        * tree-cfg.c (tree_merge_blocks): Release SSA_NAME phi results
        whose definitions are deleted due to basic block merging.

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

        PR target/16634
        * config/arm/arm.c (output_return_instruction): Pop PC in interrupt
        functions.
        (use_return_insn): Return 0 for Thumb interrupt functions.
        (print_multi_reg): Add rfe argument for IRQ returns.
        (arm_output_epilogue): Pop interrupt return address directly into PC.
        (arm_expand_prologue): Only adjust IRQ return address in Arm mode.

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

        Merge from sourcerygxx-4_1.
        * config/arm/thumb2.md: New file.
        * config/arm/elf.h (JUMP_TABLES_IN_TEXT_SECTION): Return True for
        Thumb-2.
        * config/arm/coff.h (JUMP_TABLES_IN_TEXT_SECTION): Ditto.
        * config/arm/aout.h (ASM_OUTPUT_ADDR_VEC_ELT): Add !Thumb-2 assertion.
        (ASM_OUTPUT_ADDR_DIFF_ELT): Output Thumb-2 jump tables.
        * config/arm/aof.h (ASM_OUTPUT_ADDR_DIFF_ELT): Output Thumb-2 jump
        tables.
        (ASM_OUTPUT_ADDR_VEC_ELT): Add !Thumb-2 assertion.
        * config/arm/ieee754-df.S: Use macros for Thumb-2/Unified asm
        comptibility.
        * config/arm/ieee754-sf.S: Ditto.
        * config/arm/arm.c (thumb_base_register_rtx_p): Rename...
        (thumb1_base_register_rtx_p): ... to this.
        (thumb_index_register_rtx_p): Rename...
        (thumb1_index_register_rtx_p): ... to this.
        (thumb_output_function_prologue): Rename...
        (thumb1_output_function_prologue): ... to this.
        (thumb_legitimate_address_p): Rename...
        (thumb1_legitimate_address_p): ... to this.
        (thumb_rtx_costs): Rename...
        (thumb1_rtx_costs): ... to this.
        (thumb_compute_save_reg_mask): Rename...
        (thumb1_compute_save_reg_mask): ... to this.
        (thumb_final_prescan_insn): Rename...
        (thumb1_final_prescan_insn): ... to this.
        (thumb_expand_epilogue): Rename...
        (thumb1_expand_epilogue): ... to this.
        (arm_unwind_emit_stm): Rename...
        (arm_unwind_emit_sequence): ... to this.
        (thumb2_legitimate_index_p, thumb2_legitimate_address_p,
        thumb1_compute_save_reg_mask, arm_dwarf_handle_frame_unspec,
        thumb2_index_mul_operand, output_move_vfp, arm_shift_nmem,
        arm_save_coproc_regs, thumb_set_frame_pointer, arm_print_condition,
        thumb2_final_prescan_insn, thumb2_asm_output_opcode, arm_output_shift,
        thumb2_output_casesi): New functions.
        (TARGET_DWARF_HANDLE_FRAME_UNSPEC): Define.
        (FL_THUMB2, FL_NOTM, FL_DIV, FL_FOR_ARCH6T2, FL_FOR_ARCH7,
        FL_FOR_ARCH7A, FL_FOR_ARCH7R, FL_FOR_ARCH7M, ARM_LSL_NAME,
        THUMB2_WORK_REGS): Define.
        (arm_arch_notm, arm_arch_thumb2, arm_arch_hwdiv, arm_condexec_count,
        arm_condexec_mask, arm_condexec_masklen)): New variables.
        (all_architectures): Add armv6t2, armv7, armv7a, armv7r and armv7m.
        (arm_override_options): Check new CPU capabilities.
        Set new architecture flag variables.
        (arm_isr_value): Handle v7m interrupt functions.
        (user_return_insn): Return 0 for v7m interrupt functions.  Handle
        Thumb-2.
        (const_ok_for_arm): Handle Thumb-2 constants.
        (arm_gen_constant): Ditto.  Use movw when available.
        (arm_function_ok_for_sibcall): Return false for v7m interrupt
        functions.
        (legitimize_pic_address, arm_call_tls_get_addr): Handle Thumb-2.
        (thumb_find_work_register, arm_load_pic_register,
        legitimize_tls_address, arm_address_cost, load_multiple_sequence,
        emit_ldm_seq, emit_stm_seq, arm_select_cc_mode, get_jump_table_size,
        print_multi_reg, output_mov_long_double_fpa_from_arm,
        output_mov_long_double_arm_from_fpa, output_mov_double_fpa_from_arm,
        output_mov_double_fpa_from_arm, output_move_double,
        arm_compute_save_reg_mask, arm_compute_save_reg0_reg12_mask,
        output_return_instruction, arm_output_function_prologue,
        arm_output_epilogue, arm_get_frame_offsets, arm_regno_class,
        arm_output_mi_thunk, thumb_set_return_address): Ditto.
        (arm_expand_prologue): Handle Thumb-2.  Use arm_save_coproc_regs.
        (arm_coproc_mem_operand): Allow POST_INC/PRE_DEC.
        (arithmetic_instr, shift_op): Use arm_shift_nmem.
        (arm_print_operand): Use arm_print_condition.  Handle '(', ')', '.',
        '!' and 'L'.
        (arm_final_prescan_insn): Use extract_constrain_insn_cached.
        (thumb_expand_prologue): Use thumb_set_frame_pointer.
        (arm_file_start): Output directive for unified syntax.
        (arm_unwind_emit_set): Handle stack alignment instruction.
        * config/arm/lib1funcs.asm: Remove default for __ARM_ARCH__.
        Add v6t2, v7, v7a, v7r and v7m.
        (RETLDM): Add Thumb-2 code.
        (do_it, shift1, do_push, do_pop, COND, THUMB_SYNTAX): New macros.
        * config/arm/arm.h (TARGET_CPU_CPP_BUILTINS): Define __thumb2__.
        (TARGET_THUMB1, TARGET_32BIT, TARGET_THUMB2, TARGET_DSP_MULTIPLY,
        TARGET_INT_SIMD, TARGET_UNIFIED_ASM, ARM_FT_STACKALIGN, IS_STACKALIGN,
        THUMB2_TRAMPOLINE_TEMPLATE, TRAMPOLINE_ADJUST_ADDRESS,
        ASM_OUTPUT_OPCODE, THUMB2_GO_IF_LEGITIMATE_ADDRESS,
        THUMB2_LEGITIMIZE_ADDRESS, CASE_VECTOR_PC_RELATIVE,
        CASE_VECTOR_SHORTEN_MODE, ADDR_VEC_ALIGN, ASM_OUTPUT_CASE_END,
        ADJUST_INSN_LENGTH): Define.
        (TARGET_REALLY_IWMMXT, TARGET_IWMMXT_ABI, CONDITIONAL_REGISTER_USAGE,
        STATIC_CHAIN_REGNUM, HARD_REGNO_NREGS, INDEX_REG_CLASS,
        BASE_REG_CLASS, MODE_BASE_REG_CLASS, SMALL_REGISTER_CLASSES,
        PREFERRED_RELOAD_CLASS, SECONDARY_OUTPUT_RELOAD_CLASS,
        SECONDARY_INPUT_RELOAD_CLASS, LIBCALL_VALUE, FUNCTION_VALUE_REGNO_P,
        TRAMPOLINE_SIZE, INITIALIZE_TRAMPOLINE, HAVE_PRE_INCREMENT,
        HAVE_POST_DECREMENT, HAVE_PRE_DECREMENT, HAVE_PRE_MODIFY_DISP,
        HAVE_POST_MODIFY_DISP, HAVE_PRE_MODIFY_REG, HAVE_POST_MODIFY_REG,
        REGNO_MODE_OK_FOR_BASE_P, LEGITIMATE_CONSTANT_P,
        REG_MODE_OK_FOR_BASE_P, REG_OK_FOR_INDEX_P, GO_IF_LEGITIMATE_ADDRESS,
        LEGITIMIZE_ADDRESS, THUMB2_LEGITIMIZE_ADDRESS,
        GO_IF_MODE_DEPENDENT_ADDRESS, MEMORY_MOVE_COST, BRANCH_COST,
        ASM_APP_OFF, ASM_OUTPUT_CASE_LABEL, ARM_DECLARE_FUNCTION_NAME,
        FINAL_PRESCAN_INSN, PRINT_OPERAND_PUNCT_VALID_P,
        PRINT_OPERAND_ADDRESS): Adjust for Thumb-2.
        (arm_arch_notm, arm_arch_thumb2, arm_arch_hwdiv): New declarations.
        * config/arm/arm-cores.def: Add arm1156t2-s, cortex-a8, cortex-r4 and
        cortex-m3.
        * config/arm/arm-tune.md: Regenerate.
        * config/arm/arm-protos.h: Update prototypes.
        * config/arm/vfp.md: Enable patterns for Thumb-2.
        (arm_movsi_vfp): Add movw alternative.  Use output_move_vfp.
        (arm_movdi_vfp, movsf_vfp, movdf_vfp): Use output_move_vfp.
        (thumb2_movsi_vfp, thumb2_movdi_vfp, thumb2_movsf_vfp,
        thumb2_movdf_vfp, thumb2_movsfcc_vfp, thumb2_movdfcc_vfp): New.
        * config/arm/libunwind.S: Add Thumb-2 code.
        * config/arm/constraints.md: Update include Thumb-2.
        * config/arm/ieee754-sf.S: Add Thumb-2/Unified asm support.
        * config/arm/ieee754-df.S: Ditto.
        * config/arm/bpabi.S: Ditto.
        * config/arm/t-arm (MD_INCLUDES): Add thumb2.md.
        * config/arm/predicates.md (low_register_operand,
        low_reg_or_int_operand, thumb_16bit_operator): New.
        (thumb_cmp_operand, thumb_cmpneg_operand): Rename...
        (thumb1_cmp_operand, thumb1_cmpneg_operand): ... to this.
        * config/arm/t-arm-elf: Add armv7 multilib.
        * config/arm/arm.md: Update patterns for Thumb-2 and Unified asm.
        Include thumb2.md.
        (UNSPEC_STACK_ALIGN, ce_count): New.
        (arm_incscc, arm_decscc, arm_umaxsi3, arm_uminsi3,
        arm_zero_extendsidi2, arm_zero_extendqidi2): New
        insns/expanders.
        * config/arm/fpa.md: Update patterns for Thumb-2 and Unified asm.
        (thumb2_movsf_fpa, thumb2_movdf_fpa, thumb2_movxf_fpa,
        thumb2_movsfcc_fpa, thumb2_movdfcc_fpa): New insns.
        * config/arm/cirrus.md: Update patterns for Thumb-2 and Unified asm.
        (cirrus_thumb2_movdi, cirrus_thumb2_movsi_insn,
        thumb2_cirrus_movsf_hard_insn, thumb2_cirrus_movdf_hard_insn): New
        insns.
        * doc/extend.texi: Document ARMv7-M interrupt functions.
        * doc/invoke.texi: Document Thumb-2 new cores+architectures.

2007-01-03  Jakub Jelinek  <jakub@redhat.com>

        * unwind-dw2.c (SIGNAL_FRAME_BIT, EXTENDED_CONTEXT_BIT): Define.
        (struct _Unwind_Context): Rename args_size to flags, remove
        signal_frame field, add a new args_size field and version field.
        (_Unwind_IsSignalFrame, _Unwind_SetSignalFrame,
        _Unwind_IsExtendedContext): New inline functions.
        (_Unwind_GetGR, _Unwind_SetGR, _Unwind_GetGRPtr, _Unwind_SetGRPtr):
        Assume by_value array is only present if _Unwind_IsExtendedContext.
        (_Unwind_GetIPInfo, execute_cfa_program, uw_frame_state_for): Use
        _Unwind_IsSignalFrame.
        (__frame_state_for): Initialize context.flags to EXTENDED_CONTEXT_BIT.
        (uw_update_context_1): Use _Unwind_SetSignalFrame.
        (uw_init_context_1): Initialize context->flags to
        EXTENDED_CONTEXT_BIT.
        * config/rs6000/linux-unwind.h (frob_update_context): Use
        _Unwind_SetSignalFrame.

2007-01-03  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR middle-end/30353
        * gimplify.c (gimplify_modify_expr_complex_part): Move below
        tree_to_gimple_tuple.  Call tree_to_gimple_tuple when we need
        the value.

2007-01-03  Kazu Hirata  <kazu@codesourcery.com>

        * config/i386/i386.h (NON_STACK_REG_P, REGNO_OK_FOR_SIREG_P,
        REGNO_OK_FOR_DIREG_P, REWRITE_ADDRESS, ASM_OPERAND_LETTER,
        RET, AT_SP): Remove.
        * config/i386/i386.md (*sse_prologue_save_insn): Use return
        instead of RET.

        * alias.c (init_alias_analysis): Use VEC_safe_grow_cleared.
        * cfgbuild.c (find_basic_blocks): Likewise.
        * cfgrtl.c (rtl_create_basic_block): Likewise.
        * function.c (temp_slots_at_level): Likewise.
        * reg-stack.c (stack_regs_mentioned): Likewise.
        * regclass.c (allocate_reg_info): Likewise.
        * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb,
        set_bb_for_stmt, move_block_to_fn): Likewise.
        * tree-complex.c (tree_lower_complex): Likewise.
        * vec.h (VEC_safe_grow_cleared): New.

        * cgraphunit.c, tree-ssa-alias.c: Fix comment typos.

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

        * loop-unswitch.c (unswitch_loop): Pass probabilities to loopify.
        * tree-ssa-loop-unswitch.c (tree_unswitch_loop): Pass probabilities
        to loop_version.
        * cfgloopmanip.c (scale_loop_frequencies): Export.
        (loopify): Scale the frequencies by prescribed coefficients.
        (set_zero_probability): New function.
        (duplicate_loop_to_header_edge): Improve updating of frequencies.
        (lv_adjust_loop_entry_edge, loop_version): Set probabilities
        and frequencies according to arguments.
        * tree-ssa-loop-manip.c (tree_unroll_loop): Set probabilities
        correctly.
        * cfg.c (scale_bbs_frequencies_int): Allow scaling the frequencies up.
        * modulo-sched.c (sms_schedule): Set probabilities for entering
        versioned loop correctly.
        * tree-vect-transform.c (vect_transform_loop): Ditto.
        * cfgloop.h (loopify, loop_version): Declaration changed.
        (scale_loop_frequencies): Declared.

2007-01-02  Jan Hubicka  <jh@suse.cz>

        * cgraph.c: Include tree-flow.h
        (cgraph_add_new-function): Handle IPA_SSA mode; execute
        early_local_passes.
        * cgraph.h (enum cgraph_state): Add CGRAPH_STATE_IPA_SSA.
        * tree-pass.h (pass_all_early_optimizations): Declare.
        * cgraphunit.c (cgraph_process_new_functions): Add IPA_SSA; execute
        early_local_passes.
        (cgraph_analyze_function): Do early_local_passes.
        * tree-mudflap.c (mf_decl_cache_locals, mf_build_check_statement_for):
        Do not add referenced vars.
        * tree-optimize.c (gate_all_optimizations): Do not execute when not in
        SSA form.
        (gate_all_early_local_passes): New gate.
        (pass_early_local_passes): Use new gate.
        (execute_early_local_optimizations): New functions.
        (gate_all_early_optimizations): New gate.
        (pass_all_early_optimizations): New pass.
        (execute_free_datastructures): Free SSA only when initialized.
        (gate_init_datastructures): Init only when optimizing.
        (tree_lowering_passes): Do early local passes when called late.
        * tree-profile.c (do_tree_profiling): Don't profile functions added
        late.
        (do_early_tree_profiling, pass_early_tree_profile): Kill.
        * tree-cfg.c (update_modified_stmts): Do not update when operands are
        not active.
        * passes.c (init_optimizations_passes): Reorder so we go into SSA
        during early_local_passes.
        * Makefile.in (cgraph.o): Add dependency on tree-flow.h.


2007-01-02  Carlos O'Donell  <carlos@codesourcery.com>

        * Makefile.in: Update copyright year.

2007-01-02  Carlos O'Donell  <carlos@codesourcery.com>

        * Makefile.in: Export GCC_EXEC_PREFIX before calling $(RUNTEST)
        in $(lang_checks) and check-consistency targets.

2007-01-02  Jan Hubicka  <jh@suse.cz>

        * tree-mudflap.c (mf_decl_cache_locals, mf_build_check_statement_for):
        Do not add referenced vars.
        * tree-cfg.c (update_modified_stmts): Do not update when SSA operands
        are not active.
        * passes.c (init_optimization_passes): Put mudflap_2 after
        free_datastructures.

2007-01-02  Jan Hubicka  <jh@suse.cz>

        * tree-optimize (execute_fixup_cfg): Set after_inlining flag.
        Set NOTHROW flag on call statements proved to be nothrow.
        Update statement of local calls so new pure/const functions are
        updated. Update_ssa when in ssa form. Mark PHI nodes of nonlocal
        goto receivers.
        (tree_rest_of_compilation): Register hooks and initialize bitmap
        early. Do not set after_inlining flag.

2007-01-02  Steve Ellcey  <sje@cup.hp.com>

        * sbitmap.c (HOST_BITS_PER_LONG_LONG):  Change to
        HOST_BITS_PER_LONGLONG

2007-01-02  Manuel Lopez-Ibanez <manu@gcc.gnu.org>

        PR c/19977
        * c-typeck.c (store_init_value): Don't emit pedantic overflow
        warning for non-static initializers.

2007-01-02  Steven Bosscher  <steven@gcc.gnu.org>

        * config/alpha/alpha.md, arm/arm.c, darwin.c, frv/frv.md,
        m32r/m32r.c, m32r/m32r.c, mn10300/mn10300.md, pa/pa.c,
        rs6000/rs6000.c, s390/s390.md, sh/sh.md, sparc/sparc.c:
        Always use set_unique_reg_note to add REG_EQUAL notes.

2007-01-02  Kazu Hirata  <kazu@codesourcery.com>

        Revert:
        2007-01-02  Kazu Hirata  <kazu@codesourcery.com>

        * alias.c (init_alias_analysis): Use VEC_safe_grow_cleared.
        * cfgbuild.c (find_basic_blocks): Likewise.
        * cfgrtl.c (rtl_create_basic_block): Likewise.
        * function.c (temp_slots_at_level): Likewise.
        * reg-stack.c (stack_regs_mentioned): Likewise.
        * regclass.c (allocate_reg_info): Likewise.
        * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb,
        set_bb_for_stmt, move_block_to_fn): Likewise.
        * tree-complex.c (tree_lower_complex): Likewise.
        * vec.h (VEC_safe_grow_cleared): New.

2007-01-02  Ian Lance Taylor  <iant@google.com>

        * c-common.c (c_common_truthvalue_conversion): When warning about
        using an assignment as a truth value, set TREE_NO_WARNING.

2007-01-02  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR middle-end/7651
        * c.opt (Wold-style-declaration): New.
        * doc/invoke.texi (C-only Warning Options): New.
        (Wold-style-declaration): Document it.
        (Wextra): Enabled by -Wextra.
        * c-opts.c (c_common_post_options): Enabled by -Wextra.
        * c-decl.c (declspecs_add_scspec): Replace -Wextra with
        -Wold-style-declaration.

2007-01-02  Kazu Hirata  <kazu@codesourcery.com>

        * alias.c (init_alias_analysis): Use VEC_safe_grow_cleared.
        * cfgbuild.c (find_basic_blocks): Likewise.
        * cfgrtl.c (rtl_create_basic_block): Likewise.
        * function.c (temp_slots_at_level): Likewise.
        * reg-stack.c (stack_regs_mentioned): Likewise.
        * regclass.c (allocate_reg_info): Likewise.
        * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb,
        set_bb_for_stmt, move_block_to_fn): Likewise.
        * tree-complex.c (tree_lower_complex): Likewise.
        * vec.h (VEC_safe_grow_cleared): New.

2007-01-02  Douglas Gregor  <doug.gregor@gmail.com>

        * c-common.c(c_common_nodes_and_builtins): Since variants of
        void_type_node get built before it is given a name, we need to
        give those variants the name, too.
        (complete_array_type): We need to work with the canonical main
        type of the array, from which we will build the qualified version.
        * params.def (PARAM_VERIFY_CANONICAL_TYPES): New.
        * print-tree.c (print_node): Display canonical type information
        for each type.
        * stor-layout.c (layout_type): When we don't know the
        alignment of a type for which we're building an array, we end up
        guessing wrong, so make the type require structural equality.
        * tree.c (make_node_stat): When we build a new type, it is its
        own canonical type.
        (build_type_attribute_qual_variant): When building an attribute
        variant, its canonical type is the non-attribute variant. However,
        if the attributes are target-dependent and they differ, we need to
        use structural equality checks for this type.
        (build_qualified_type): A qualified type is not equivalent to its
        unqualified variant; set the canonical type appropriately.
        (build_distinct_type_copy): When building a distinct type from
        another type, the new type is its own canonical type.
        (build_variant_type_copy): When building a new type variant, we
        assume that it is equivalent to the original type.
        (build_pointer_type_for_mode): When building a pointer type, also
        build a canonical type pointer.
        (build_reference_type_for_mode): When building a reference type,
        also build a canonical type reference.
        (build_index_type): When we can't hash an index type (e.g.,
        because its maximum value is negative), the index type requires
        structural equality tests.
        (build_array_type): Build the canonical form of an array type.
        (build_function_type): Function types require structural equality,
        because they contain default arguments, attributes, etc.
        (build_method_type_directly): Ditto for method types.
        (build_offset_type): Build the canonical offset type.
        (build_complex_type): Build the canonical vector type.
        (make_vector_type): Build the canonical vector type.
        * tree.h (TYPE_CANONICAL): New.
        (TYPE_STRUCTURAL_EQUALITY_P): New.
        (SET_TYPE_STRUCTURAL_EQUALITY): New.
        (struct tree_type): Added "canonical" field.
        * params.h (VERIFY_CANONICAL_TYPES): New.
        * doc/c-tree.texi (TYPE_CANONICAL): Document.
        (TYPE_STRUCTURAL_EQUALITY_P): Document.
        (SET_TYPE_STRUCTURAL_EQUALITY): Document.
        * doc/invoke.texi (verify-canonical-types): Document --param
        parameter for verifying canonical types.

2007-01-02  Joseph Myers  <joseph@codesourcery.com>

        * config.gcc (powerpc-*-eabispe*, powerpc-*-eabisimaltivec*,
        powerpc-*-eabisim*, powerpc-*-eabialtivec*, powerpc-*-eabi*,
        powerpc-*-rtems*, powerpc-wrs-vxworks, powerpc-wrs-vxworksae,
        powerpcle-*-eabisim*, powerpcle-*-eabi*): Add rs6000/e500.h to
        tm_file.
        * config/rs6000/e500.h: New.
        * config/rs6000/eabi.h (TARGET_SPE_ABI, TARGET_SPE, TARGET_E500,
        TARGET_ISEL, TARGET_FPRS, TARGET_E500_SINGLE, TARGET_E500_DOUBLE):
        Remove.
        * config/rs6000/linuxspe.h (TARGET_SPE_ABI, TARGET_SPE,
        TARGET_E500, TARGET_ISEL, TARGET_FPRS, TARGET_E500_SINGLE,
        TARGET_E500_DOUBLE): Remove.
        * config/rs6000/vxworks.h (TARGET_SPE_ABI, TARGET_SPE,
        TARGET_E500, TARGET_ISEL, TARGET_FPRS): Remove.
        * config/rs6000/rs6000.h (CHECK_E500_OPTIONS): Define.
        * config/rs6000/rs6000.c (rs6000_override_options): Use
        CHECK_E500_OPTIONS.

2007-01-02  Joseph Myers  <joseph@codesourcery.com>

        * config/rs6000/rs6000.c (print_operand): Check (TARGET_SPE ||
        TARGET_E500_DOUBLE), not TARGET_E500, for %y.
        (rs6000_generate_compare, rs6000_emit_sCOND, output_cbranch,
        rs6000_emit_cmove): Don't check TARGET_E500.
        * config/rs6000/rs6000.md (bunordered, bordered, sunordered,
        sordered): Don't check TARGET_E500.

2007-01-01  Eric Christopher  <echristo@apple.com>

        * config/mips/mips.c (mips_regno_mode_ok_for_base_p): Use
        HARD_REGISTER_NUM_P.

2007-01-01  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (fold_binary) <EQ_EXPR>: Fold "(X^C1) eq/ne C2" into
        "X eq/ne (C1^C2)".  Fold "(X^Z) eq/ne (Y^Z)" as "X eq/ne Y" when Z
        has no side-effects.  Fold "(X^C1) eq/ne (Y^C2)" as "(X^(C1^C2))
        eq/ne Y".

2007-01-01  Mike Stump  <mrs@apple.com>

        * configure.ac: Remove support for building with Apple's gcc-3.1.

2007-01-02  Joseph Myers  <joseph@codesourcery.com>

        PR middle-end/30311
        * caller-save.c (add_stored_regs): Only handle SUBREGs if inner
        REG is a hard register.  Do not modify REG before calling
        subreg_nregs.
        * rtlanal.c (subreg_get_info): Don't assert size of XMODE is a
        multiple of the size of YMODE for certain lowpart cases.

2007-01-01  Andrew Pinski  <pinskia@gmail.com>

        PR middle-end/30253
        * gimplify (voidify_wrapper_expr): Update for
        GIMPLE_MODIFY_STMT.

2007-01-01  Andreas Schwab  <schwab@suse.de>

        PR target/29166
        * config/ia64/ia64.c (ia64_compute_frame_size): Account space for
        save of BR0 in extra_spill_size instead of spill_size.
        (ia64_expand_prologue): Save BR0 outside of the gr/br/fr spill
        area.
        (ia64_expand_epilogue): Restore BR0 from its new location.

2007-01-01  Andrew Pinski  <pinskia@gmail.com>

        * gimplify.c (gimplify_init_constructor <case VECTOR_TYPE>):
        Use a temporary variable if the left hand side is not a gimple
        register.

2007-01-01  Andrew Pinski  <pinskia@gmail.com>

        * gimplify.c (gimplify_return_expr): Make the temporary variable
        for the return expression, a gimple register variable.

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

        * emit-rtl.c (emit_copy_of_insn_after): Do not call copy_insn_1 for
        INSN_LIST.

2007-01-01  Mike Stump  <mrs@apple.com>

        * configure.ac (HAVE_GAS_LITERAL16): Add autoconf check for
        .literal16.
        * config/darwin.c (machopic_select_rtx_section): Use
        HAVE_GAS_LITERAL16.
        (darwin_mergeable_constant_section): Likewise.
        * configure: Regenerate.
        * config.in: Regenerate.

2007-01-01  Jan Hubicka  <jh@suse.cz>
            Andrew Pinski  <pinskia@gmail.com>

        * cgraphunit.c (cgraph_optimize): Call cgraph_add_new_functions
        before starting IPA passes.