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

2005-03-21  Richard Sandiford  <rsandifo@redhat.com>

        * libgcc2.h (LIBGCC2_HAS_SF_MODE): New macro.
        (LIBGCC2_HAS_DF_MODE, LIBGCC2_HAS_TF_MODE, LIBGCC2_HAS_XF_MODE): Make
        the defaults false if BITS_PER_UNIT != 8.
        (SFtype, SCtype, __fixsfdi, __floatdisf, __fixunssfSI, __fixunssfDI)
        (__powisf2, __divsc3, __mulsc3): Guard with LIBGCC2_HAS_SF_MODE rather
        than BITS_PER_UNIT != 8.
        (L_fixdfdi, L_fixsfdi, L_fixtfdi, L_fixunsdfdi, L_fixunsdfsi)
        (L_fixunssfdi, L_fixunssfsi, L_fixunstfdi, L_fixunsxfdi, L_fixunsxfsi)
        (L_fixxfdi, L_floatdidf, L_floatdisf, L_floatditf, L_floatdixf): Remove
        #undefs.
        * libgcc2.c (__fixunssfDI, __fixsfdi, __floatdisf, __fixunssfSI)
        (__powisf2, __divsc3, __mulsc3): Guard with LIBGCC2_HAS_SF_MODE.

2005-03-20  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/20539
        * fold-const.c (fold_binary): Fix type mismatch between
        TRUTH_{AND,OR,XOR}_EXPR nodes an their operands' types.
        (fold_binary) <TRUTH_XOR_EXPR>: Avoid calling invert_truthvalue
        for non-truth-valued expressions.

        * c-common.c (c_common_truthvalue_conversion): Handle ERROR_MARK
        and FUNCTION_DECL in the main switch.
        <TRUTH_ANDIF_EXPR, TRUTH_ORIF_EXPR, TRUTH_AND_EXPR, TRUTH_OR_EXPR,
        TRUTH_XOR_EXPR>: When changing the result type of these tree nodes,
        we also need to convert their operands to match.
        <TRUTH_NOT_EXPR>: Likewise.

2005-03-21  Joseph S. Myers  <joseph@codesourcery.com>

        * c-common.c (lvalue_or_else): Replace by lvalue_error; only give
        diagnostic without checking whether an lvalue.
        * c-common.h (lvalue_p): Remove.
        (enum lvalue_use): Update comment.
        (lvalue_or_else): Replace by lvalue_error.
        * c-typeck.c (lvalue_p): Make static.
        (lvalue_or_else): New.  Call lvalue_error.

2005-03-21  Alan Modra  <amodra@bigpond.net.au>

        * config/rs6000/rs6000.c (rs6000_parm_start): New function.
        (function_arg_advance): Use rs6000_parm_start.
        (function_arg, rs6000_arg_partial_bytes): Likewise.

2005-03-20  Joseph S. Myers  <joseph@codesourcery.com>

        * c-common.c (check_case_value): Adjust comment about stripping
        NOPs.
        (handle_vector_size_attribute): Don't strip NON_LVALUE_EXPR.
        * c-typeck.c (default_conversion, convert_arguments,
        build_modify_expr, convert_for_assignment, store_init_value,
        digest_init): Use STRIP_TYPE_NOPS instead of stripping nops
        manually.  Remove inaccurate comments.

2005-03-20  Roger Sayle  <roger@eyesopen.com>
            Joseph S. Myers  <joseph@codesourcery.com>

        * varasm.c (do_assemble_alias): Restore comment describing function.
        Annotate the target parameter as potentially unused.

2005-03-20  Marek Michalkiewicz  <marekm@amelek.gda.pl>

        PR target/18551
        * config/avr/avr.c (avr_output_function_prologue): Do not use
        current_function_name() in a label, use a local label instead.

2005-03-20  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/rs6000.c (rs6000_generate_compare): Test
        flag_finite_math_only, not flag_unsafe_math_optimizations.

2005-03-20  Kazu Hirata  <kazu@cs.umass.edu>

        * builtins.c (fold_builtin_1): Update a call to
        targetm.fold_builtin.
        * hooks.c (hook_tree_tree_bool_null): Rename to
        hook_tree_tree_tree_bool_null.  Take one more argument of type
        tree.
        * hooks.h: Update the prototype of hook_tree_tree_bool_null.
        * target-def.h (TARGET_FOLD_BUILTIN): Define it as
        hook_tree_tree_tree_bool_null.
        * target.h (gcc_target): Update the prototype of fold_builtin.
        * config/alpha/alpha.c (alpha_fold_builtin): Take decomposed
        arguments of CALL_EXPR.
        * doc/tm.texi (TARGET_FOLD_BUILTIN): Update.  Mention the
        new prototype.

2005-03-20  Jan Hubicka  <jh@suse.cz>

        * cgraph.h (cgraph_node): Add prev_clone pointer.
        * cgraph.c (cgraph_remove_node): Remove from doubly linked chain.
        (cgraph_clone_node): Produce doubly linked chain.

2005-03-20  Joseph S. Myers  <joseph@codesourcery.com>

        * c-common.c (handle_aligned_attribute, check_function_sentinel,
        get_nonnull_operand, handle_sentinel_attribute,
        check_function_arguments_recurse): Do not strip NOPS from
        INTEGER_CSTs.
        * c-decl.c (check_bitfield_type_and_width, build_enumerator):
        Likewise.
        * c-format.c (get_constant): Likewise.
        * c-parser.c (c_parser_postfix_expression): Likewise.
        * c-typeck.c (set_init_index): Likewise.
        (convert_arguments): Don't check for NOP_EXPR containing integer
        constant.

2005-03-20  Kazu Hirata  <kazu@cs.umass.edu>

        * builtins.c (fold_fixed_mathfn, fold_builtin_trunc,
        fold_builtin_floor, fold_builtin_ceil, fold_builtin_lround):
        Take decomposed arguments of CALL_EXPR.
        (fold_builtin_1): Update calls to the functions mentioned
        above.

2005-03-20  Joseph S. Myers  <joseph@codesourcery.com>

        * c-decl.c (check_bitfield_type_and_width): Require bit-field
        width to have integer type.
        (build_enumerator): Require enumerator value to have integer type.

2005-03-19  Joseph S. Myers  <joseph@codesourcery.com>

        * doc/extend.texi (__builtin_inf): Move statement about INFINITY
        to __builtin_inff.

2005-03-19  Joseph S. Myers  <joseph@codesourcery.com>

        * c.opt (ansi, std=iso9899:1990, std=iso9899:1999,
        std=iso9899:199x): Correct descriptions.

2005-03-19  Joseph S. Myers  <joseph@codesourcery.com>

        * config.gcc: Consistently use solaris2.1[0-9]* instead of
        solaris2.1[0-9].

2005-03-19  Kazu Hirata  <kazu@cs.umass.edu>

        * builtins.c (fold_builtin_memcpy): Take decomposed arguments
        of CALL_EXPR.
        (expand_builtin_memcpy, fold_builtin_1): Update calls to
        fold_builtin_memcpy.

        * builtins.c (fold_trunc_transparent_mathfn): Take decomposed
        arguments of CALL_EXPR.
        (fold_builtin_trunc, fold_builtin_floor, fold_builtin_ceil,
        fold_builtin_found, fold_builtin_1): Update calls to
        fold_trunc_transparent_mathfn.

2005-03-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR middle-end/20493
        * fold-const.c (fold_widened_comparison): Don't optimize casts of
        function pointers on targets that require function pointer
        canonicalization.
        (fold_sign_changed_comparison): Likewise.

2005-03-19  Bernd Schmidt  <bernd.schmidt@analog.com>

        * combine.c (try_combine): When changing the mode of a hard reg, make
        sure that doing so is valid.

2005-03-19  Richard Sandiford  <rsandifo@redhat.com>

        * config/avr/avr.c (avr_init_stack, avr_mcu_name): Make static.
        (TARGET_HANDLE_OPTION): Override default.
        (avr_handle_option): New function.
        * config/avr/avr.h (MASK_ALL_DEBUG, MASK_ORDER_1, MASK_INSN_SIZE_DUMP)
        (MASK_ORDER_2, MASK_NO_TABLEJUMP, MASK_INT8, MASK_NO_INTERRUPTS)
        (MASK_CALL_PROLOGUES, MASK_TINY_STACK, MASK_SHORT_CALLS)
        (TARGET_ORDER_1, TARGET_ORDER_2, TARGET_INT8, TARGET_NO_INTERRUPTS)
        (TARGET_INSN_SIZE_DUMP, TARGET_CALL_PROLOGUES, TARGET_TINY_STACK)
        (TARGET_NO_TABLEJUMP, TARGET_SHORT_CALLS, TARGET_ALL_DEBUG)
        (TARGET_SWITCHES, avr_init_stack, avr_mcu_name)
        (TARGET_OPTIONS): Delete.
        * config/avr/avr.opt: New file.

2005-03-18  2005-03-18  Kazu Hirata  <kazu@cs.umass.edu>

        * config/m32r/m32r-protos.h: Remove the prototypes for
        call_address_operand, symbolic_operand, seth_add3_operand,
        cmp_int16_operand, uint16_operand, reg_or_int16_operand,
        reg_or_uint16_operand, reg_or_cmp_int16_operand,
        two_insn_const_operand, move_src_operand,
        move_double_src_operand, move_dest_operand,
        eqne_comparison_operator, signed_comparison_operator,
        large_insn_p, conditional_move_operand, carry_compare_operand,
        m32r_block_immediate_operand, extend_operand,
        reg_or_eq_int16_operand, int8_operand, and
        reg_or_zero_operand.
        * config/m32r/m32r.c (call_address_operand, symbolic_operand,
        seth_add3_operand, int8_operand, cmp_int16_operand,
        uint16_operand, reg_or_int16_operand, reg_or_uint16_operand,
        reg_or_eq_int16_operand, reg_or_cmp_int16_operand,
        reg_or_zero_operand, two_insn_const_operand, move_src_operand,
        move_double_src_operand, move_dest_operand,
        eqne_comparison_operator, signed_comparison_operator,
        extend_operand, small_insn_p, large_insn_p,
        conditional_move_operand, carry_compare_operand,
        m32r_block_immediate_operand): Move to predicates.md.
        (MAX_MOVE_BYTES): Move to m32r.h.
        * config/m32r/m32r.h (PREDICATE_CODES): Remove.
        * config/m32r/m32r.md: Include predicates.md.
        * config/m32r/predicates.md: New.

2005-03-18  James E Wilson  <wilson@specifixinc.com>

        PR c++/19769
        * dwarf2out.c (declare_in_namespace): Ignore decls with an abstract
        origin.

2005-03-18  Kazu Hirata  <kazu@cs.umass.edu>

        * config/mn10300/mn10300-protos.h: Remove the prototypes for
        call_address_operand, const_8bit_operand.
        * config/mn10300/mn10300.c (call_address_operand,
        const_8bit_operand, const_1f_operand): Move to predicates.md.
        * config/mn10300/mn10300.h (PREDICATE_CODES): Remove.
        * config/mn10300/mn10300.md: Include predicates.md.
        * config/mn10300/predicates.md: New.

2005-03-18  Joseph S. Myers  <joseph@codesourcery.com>

        * c-common.c, c-decl.c, c-format.c, c-typeck.c: Use %D for
        declarations in diagnostics and %E for identifiers, not %s.

2005-03-18  Jan Hubicka  <jh@suse.cz>
            Dale Johannesen  <dalej@apple.com>

        * basic-block.h (scale_bbs_frequencies_int,
        scale_bbs_frequencies_gcov_type): Declare.
        * cfg.c (RDIV): New macro.
        (update_bb_frequency_for_threading): Fix.
        * basic-block.h (scale_bbs_frequencies_int,
        scale_bbs_frequencies_gcov_type): New.
        * cfgloopmanip.c (scale_bbs_frequencies): Kill.
        (scale_loop_frequencies, duplicate_loop_to_header_edge): Use
        scale_bbs_frequencies_int.
        * tree-ssa-loop-ch.c (copy_loop_headers): Fix profiling info.

>>>>>>> 2.7929
2005-03-18  Kazu Hirata  <kazu@cs.umass.edu>

        * config/m32r/m32r-protos.h: Remove the prototypes for
        call_address_operand, symbolic_operand, seth_add3_operand,
        cmp_int16_operand, uint16_operand, reg_or_int16_operand,
        reg_or_uint16_operand, reg_or_cmp_int16_operand,
        two_insn_const_operand, move_src_operand,
        move_double_src_operand, move_dest_operand,
        eqne_comparison_operator, signed_comparison_operator,
        large_insn_p, conditional_move_operand, carry_compare_operand,
        m32r_block_immediate_operand, extend_operand,
        reg_or_eq_int16_operand, int8_operand, and
        reg_or_zero_operand.
        * config/m32r/m32r.c (call_address_operand, symbolic_operand,
        seth_add3_operand, int8_operand, cmp_int16_operand,
        uint16_operand, reg_or_int16_operand, reg_or_uint16_operand,
        reg_or_eq_int16_operand, reg_or_cmp_int16_operand,
        reg_or_zero_operand, two_insn_const_operand, move_src_operand,
        move_double_src_operand, move_dest_operand,
        eqne_comparison_operator, signed_comparison_operator,
        extend_operand, small_insn_p, large_insn_p,
        conditional_move_operand, carry_compare_operand,
        m32r_block_immediate_operand): Move to predicates.md.
        (MAX_MOVE_BYTES): Move to m32r.h.
        * config/m32r/m32r.h (PREDICATE_CODES): Remove.
        * config/m32r/m32r.md: Include predicates.md.
        * config/m32r/predicates.md: New.

        * config/pa/pa-protos.h: Add prototypes for magic_milli and
        shadd_constant_p.
        * config/pa/pa.c (reg_or_0_operand, call_operand_address,
        symbolic_operand, symbolic_memory_operand,
        reg_or_0_or_nonsymb_mem_operand, reg_before_reload_operand,
        indexed_memory_operand, move_dest_operand, move_src_operand,
        prefetch_cc_operand, prefetch_nocc_operand,
        reg_or_cint_move_operand, pic_label_operand, fp_reg_operand,
        arith_operand, arith11_operand, pre_cint_operand,
        post_cint_operan, arith_double_operand, ireg_or_int5_operand,
        ireg_operand, int5_operand, uint5_operand, int11_operand,
        uint32_operand, arith5_operand, and_operand, ior_operand,
        lhs_lshift_operand, lhs_lshift_cint_operand, arith32_operand,
        pc_or_label_operand, div_operand, plus_xor_ior_operator,
        shadd_operand, movb_comparison_operator,
        cmpib_comparison_operator): Move to predicates.md.
        (magic_milli, shadd_constant_p): Make it extern.
        * config/pa/pa.h (PREDICATE_CODES): Remove.
        * config/pa/pa.md: Include predicates.md.
        * config/pa/predicates.md: New.

        * config/v850/v850.h (PREDICATE_CODES): Remove a nonexistent
        predicate.

2005-03-18  Kazu Hirata  <kazu@cs.umass.edu>

        * hooks.c, hooks.h, intl.c, opts.h, prefix.c, tree-gimple.c,
        config/alpha/ev4.md, config/alpha/ev5.md, config/alpha/ev6.md,
        config/alpha/freebsd.h, config/alpha/linux.h,
        config/alpha/netbsd.h, config/alpha/osf5.h,
        config/alpha/vms.h, config/arc/arc.c, config/arc/arc.h,
        config/h8300/h8300-protos.h, config/h8300/h8300.c,
        config/h8300/h8300.h, config/ia64/unwind-ia64.c,
        doc/cppopts.texi: Update copyright.

2005-03-18  Jan Hubicka  <jh@suse.cz>

        PR middle-end/20225
        * cgraph.c (cgraph_mark_reachable_node): Assert that it is not called
        too late.
        * varasm.c (find_decl_and_mark_needed): Mark needed only when not
        called too late.

2005-03-18  Kazu Hirata  <kazu@cs.umass.edu>

        * tree-into-ssa.c (find_idf): Use VEC_quick_push instead of
        VEC_safe_push.

2005-03-18  Paolo Bonzini  <bonzini@gnu.org>

        * combine.c (gen_binary): Remove.
        (known_cond, simplify_shift_const, find_split_point,
        combine_simplify_rtx, simplify_if_then_else, simplify_set,
        simplify_logical, expand_field_assignment, extract_left_shift,
        force_to_mode, if_then_else_cond, apply_distributive_law,
        simplify_and_const_int, simplify_shift_const, gen_lowpart_for_combine,
        simplify_comparison, reversed_comparison): Replace with
        simplify_gen_binary, simplify_gen_relational or
        distribute_and_simplify_rtx.
        (distribute_and_simplify_rtx): New function.

2005-03-18  Alexey Neyman  <alex.neyman@auriga.ru>
            Paolo Bonzini  <gcc.gnu.org>

        * calls.c (setjmp_call_p, special_function_p): Update comments
        at the head of the functions.

2005-03-18  Jan Hubicka  <jh@suse.cz>

        * tree-cfg.c (fold_cond_expr_cond): Use boolean types for condition.

        * cgraph.c (cgraph_remove_node): Avoid loop in code deciding whether 
        function body should be released; do not proactively release function
        bodies in non-unit-at-a-time mode.

2005-03-18  Ralf Corsepius  <ralf.corsepius@rtems.org>

        * config/i386/t-rtems-i386 (MULTILIBS): Remove k6, athlon,
        mno-fp-ret-in-387 multilib variants.

2005-03-18  Richard Sandiford  <rsandifo@redhat.com>

        * common.opt (m): Remove.
        * opts.c (handle_option): Pass 'm' options to set_target_switch if
        table lookup fails.
        (common_handle_option): Remove OPT_m case.

2005-03-18  Kazu Hirata  <kazu@cs.umass.edu>

        * builtins.c (fold_builtin_bitop): Take decomposed arguments
        of CALL_EXPR.
        (fold_builtin_1): Update a call to fold_builtin_bitop.

        * builtins.c (fold_builtin_signbit): Take decomposed arguments
        of CALL_EXPR.
        (fold_builtin_1): Update a call to fold_builtin_signbit.

2005-03-17  Dorit Naishlos  <dorit@il.ibm.com>

        PR tree-optimization/20474
        * tree-vect-analyze.c (vect_analyze_pointer_ref_access): Check the 
        size_type of the relevant pointer. Check for COMPLETE_TYPE_P.

2005-03-17  Kazu Hirata  <kazu@cs.umass.edu>

        * config/h8300/h8300-protos.h: Remove prototypes for
        general_operand_src, general_operand_dst, single_one_operand,
        single_zero_operand, call_insn_operand,
        two_insn_adds_subs_operand, small_call_insn_operand,
        jump_address_operand, bit_operand, bit_memory_operand,
        stack_pointer_operand, const_int_gt_2_operand,
        const_int_ge_8_operand, const_int_qi_operand,
        const_int_hi_operand, incdec_operand, bit_operator,
        nshift_operator, eqne_operator, gtle_operator,
        gtuleu_operator, iorxor_operator.
        Add prototypes for h8sx_shift_type h8sx_classify_shift and
        h8300_ldm_stm_parallel.
        * config/h8300/h8300.c (h8sx_shift_type,): Move to
        h8300-protos.h.
        (SYMBOL_FLAG_FUNCVEC_FUNCTION, SYMBOL_FLAG_EIGHTBIT_DATA,
        SYMBOL_FLAG_TINY_DATA): Move to h8300.h.
        (h8300_ldm_stm_parallel): Make it extern.
        (h8300_ldm_parallel, h8300_stm_parallel,
        h8300_return_parallel, general_operand_src,
        general_operand_dst, h8300_dst_operand, h8300_src_operand,
        nibble_operand, reg_or_nibble_operand, single_one_operand,
        single_zero_operand, call_insn_operand,
        two_insn_adds_subs_operand, small_call_insn_operand,
        jump_address_operand, bit_operand, bit_memory_operand,
        stack_pointer_operand, const_int_gt_2_operand,
        const_int_ge_8_operand, const_int_qi_operand,
        const_int_hi_operand, incdec_operand, eqne_operator,
        gtle_operator, gtuleu_operator, iorxor_operator, bit_operator,
        h8sx_binary_memory_operator, h8sx_unary_memory_operator,
        h8sx_unary_shift_operator, h8sx_binary_shift_operator,
        nshift_operator): Move to predicates.md.
        * config/h8300/h8300.h (PREDICATE_CODES): Remove.
        * config/h8300/h8300.md: Include predicates.md.
        * config/h8300/predicates.md: New.

2005-03-17  Richard Henderson  <rth@redhat.com>

        * config.gcc (ia64*-*-hpux*): Add extra_options.
        * config/ia64/hpux.h (SUBTARGET_SWITCHES): Remove.
        (TARGET_DEFAULT): Remove MASK_INLINE_FLOAT_DIV_THR.
        * config/ia64/ia64.c (ia64_fixed_range_string): Remove.
        (ia64_tls_size_string, ia64_tune_string): Remove.
        (ia64_tune): Init to PROCESSOR_ITANIUM2.
        (TARGET_DEFAULT_TARGET_FLAGS): New.
        (TARGET_HANDLE_OPTION): New.
        (ia64_override_options): Move options parsing ...
        (ia64_handle_option): ... here.  New.
        * config/ia64/ia64.h (target_flags, MASK_BIG_ENDIAN, MASK_GNU_AS,
        MASK_GNU_LD, MASK_NO_PIC, MASK_VOL_ASM_STOP, MASK_ILP32, 
        MASK_REG_NAMES, MASK_NO_SDATA, MASK_CONST_GP, MASK_AUTO_PIC,
        MASK_INLINE_FLOAT_DIV_LAT, MASK_INLINE_FLOAT_DIV_THR,
        MASK_INLINE_INT_DIV_LAT, MASK_INLINE_INT_DIV_THR,
        MASK_INLINE_SQRT_LAT, MASK_INLINE_SQRT_THR, MASK_DWARF2_ASM, 
        MASK_EARLY_STOP_BITS, TARGET_BIG_ENDIAN, TARGET_GNU_AS, TARGET_GNU_LD, 
        TARGET_NO_PIC, TARGET_VOL_ASM_STOP, TARGET_ILP32, TARGET_REG_NAMES,
        TARGET_NO_SDATA, TARGET_CONST_GP, TARGET_AUTO_PIC,
        TARGET_INLINE_FLOAT_DIV_LAT, TARGET_INLINE_FLOAT_DIV_THR,
        TARGET_INLINE_INT_DIV_LAT, TARGET_INLINE_INT_DIV_THR,
        TARGET_INLINE_FLOAT_DIV, TARGET_INLINE_INT_DIV, TARGET_INLINE_SQRT_LAT,
        TARGET_INLINE_SQRT_THR, TARGET_INLINE_SQRT, TARGET_DWARF2_ASM,
        TARGET_EARLY_STOP_BITS): Remove.
        (TARGET_ILP32): Default false.
        (TARGET_SWITCHES, SUBTARGET_SWITCHES, TARGET_OPTIONS): Remove.
        (enum ia64_inline_type): New.
        (TARGET_DEFAULT): Remove MASK_INLINE_FLOAT_DIV_THR.
        * config/ia64/ia64.md: Update for new definitions of
        TARGET_INLINE_INT_DIV, TARGET_INLINE_FLOAT_DIV, TARGET_INLINE_SQRT.
        * config/ia64/ia64.opt: New file.
        * config/ia64/ilp32.opt: New file.

2005-03-17  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/18380
        * config/ia64/unwind-ia64.c (_Unwind_FindTableEntry): Removed.

2005-03-17  Kazu Hirata  <kazu@cs.umass.edu>

        * config/h8300/h8300.c (h8300_init_once): Use MASK_H8300S_1
        instead of MASK_H8300S.
        * config/h8300/h8300.h (target_flags, MASK_H8300S, MASK_MAC,
        MASK_INT32, MASK_ADDRESSES, MASK_QUICKCALL, MASK_SLOWBYTE,
        MASK_NORMAL_MODE, MASK_RELAX, MASK_H8300H, MASK_ALIGN_300,
        MASK_H8300SX, TARGET_INT32, TARGET_ADDRESSES,
        TARGET_QUICKCALL, TARGET_SLOWBYTE, TARGET_H8300H,
        TARGET_H8300XS, TARGET_NORMAL_MODE, TARGET_ALIGN_300,
        TARGET_SWITCHES): Remove.
        (TARGET_H8300S): Redefine interms of TARGET_H8300S_1 and
        TARGET_H8300SX.
        * config/h8300/h8300.opt: New.

        * config/alpha/alpha.opt, config/arc/arc.opt,
        config/h8300/h8300.opt, config/mips/mips.opt: Add copyright
        notices.

2005-03-17  Ian Lance Taylor  <ian@airs.com>

        * gmon.c: Remove.

2005-03-17  Richard Sandiford  <rsandifo@redhat.com>

        * config/arc/arc.c (arc_cpu_string): Make static.  Default to "base"
        (arc_text_string, arc_data_string, arc_rodata_string): Make static.
        (TARGET_HANDLE_OPTION): Override default.
        (arc_handle_option): New function.
        (arc_init): Remove code to set arch_cpu_string.
        * config/arc/arc.h (target_flags, TARGET_MASK_MANGLE_CPU)
        (TARGET_MANGLE_CPU, TARGET_MASK_MANGLE_CPU_LIBGCC)
        (TARGET_MANGLE_CPU_LIBGCC, TARGET_MASK_ALIGN_LOOPS, TARGET_ALIGN_LOOPS)
        (TARGET_MASK_BIG_ENDIAN, TARGET_BIG_ENDIAN, TARGET_MASK_NO_COND_EXEC)
        (TARGET_NO_COND_EXEC, TARGET_SWITCHES, TARGET_DEFAULT)
        (SUBTARGET_SWITCHES, arc_cpu_string, arc_text_string, arc_data_string)
        (arc_rodata_string, TARGET_OPTIONS): Delete.
        * config/arc/arc.opt: New file.

2005-03-17  Richard Henderson  <rth@redhat.com>

        * doc/extend.texi (Weak Pragmas): New section.
        (attribute alias): Clarify that target must be in the same
        translation unit.

2005-03-17  Richard Henderson  <rth@redhat.com>

        * config/alpha/alpha.opt: New file.
        * config/alpha/alpha.c (alpha_tune): New.  Rename all existing uses
        of alpha_cpu.
        (alpha_cpu_string, alpha_tune_string, alpha_tp_string, 
        alpha_fprm_string, alpha_fptm_string): Make static.
        (alpha_tls_size_string): Remove.
        (alpha_handle_option): New.
        (override_options): Update for alpha_cpu/alpha_tune split.
        (alpha_file_start): Likewise.
        (TARGET_DEFAULT_TARGET_FLAGS): New.
        (TARGET_HANDLE_OPTION): New.
        * config/alpha/alpha.h (alpha_tune): Declare.
        (MASK_FP, MASK_FPREGS, TARGET_FPREGS, MASK_GAS, TARGET_GAS, 
        MASK_IEEE_CONFORMANT, TARGET_IEEE_CONFORMANT, MASK_IEEE, TARGET_IEEE,
        MASK_IEEE_WITH_INEXACT, TARGET_IEEE_WITH_INEXACT, MASK_BUILD_CONSTANTS,
        TARGET_BUILD_CONSTANTS, MASK_FLOAT_VAX, TARGET_FLOAT_VAX, MASK_BWX,
        TARGET_BWX, MASK_MAX, TARGET_MAX, MASK_FIX, TARGET_FIX, MASK_CIX,
        TARGET_CIX, MASK_EXPLICIT_RELOCS, TARGET_EXPLICIT_RELOCS,
        MASK_SMALL_DATA, TARGET_SMALL_DATA, MASK_TLS_KERNEL, TARGET_TLS_KERNEL,
        MASK_SMALL_TEXT, TARGET_SMALL_TEXT, MASK_LONG_DOUBLE_128,
        TARGET_LONG_DOUBLE_128, MASK_CPU_EV5, TARGET_CPU_EV5, MASK_CPU_EV6,
        TARGET_CPU_EV6, MASK_SUPPORT_ARCH): Remove.
        (TARGET_SWITCHES, TARGET_OPTIONS): Remove.
        (TARGET_DEFAULT): Remove MASK_FP.
        (TARGET_FP): Redefined based on TARGET_SOFT_FP.
        (TARGET_SUPPORT_ARCH): Default on if HAVE_AS_EXPLICIT_RELOCS.
        (alpha_cpu_string, alpha_tune_string, alpha_fprm_string,
        alpha_fptm_string, alpha_tp_string, alpha_mlat_string,
        alpha_tls_size_string): Remove.
        * config/alpha/alpha.md (prefetch): Use alpha_cpu.
        (attribute tune): Rename from attribute cpu.
        * config/alpha/ev4.md: Update to match.
        * config/alpha/ev5.md, config/alpha/ev6.md: Likewise.
        * config/alpha/freebsd.h (TARGET_DEFAULT): Remove MASK_FP.
        * config/alpha/linux.h (TARGET_DEFAULT): Likewise.
        * config/alpha/netbsd.h (TARGET_DEFAULT): Likewise.
        * config/alpha/osf5.h (TARGET_DEFAULT): Likewise.
        * config/alpha/vms.h (TARGET_DEFAULT): Likewise.

2005-03-16  James E. Wilson  <wilson@specifixinc.com>

        * config/ia64/ia64.c (issue_nops_and_insn): Check first_insn attribute,
        and return without creating new state if before_nops_num is nonzero.
        * config/ia64/ia64.md (first_insn): New attribute.
        (alloc): Set it to yes.

2005-03-16  Daniel Berlin  <dberlin@dberlin.org>

        * tree-vectorizer.c (new_vec_stmt_info): Initialize
        STMT_VINFO_SUBVARS to NULL.
        * tree-vect-analyze.c (vect_analyze_data_refs): Ditto.
        
2005-03-16 Dale Johannesen  <dalej@apple.com>

        * rtlanal.c (find_first_parameter_load):  Rewrite to
        return actual first param load or the call if none,
        instead of first in block, when not all loads exist.

2005-03-16  Roger Sayle  <roger@eyesopen.com>

        * optabs.c (expand_copysign_absneg): Make static.
        * optabs.h (expand_copysign_absneg): Delete prototype.
        * config/rs6000/rs6000.md (copysigntf3): Delete pattern.

2005-03-16  Richard Henderson  <rth@redhat.com>

        PR middle-end/15700
        * varasm.c (struct alias_pair): Rename from struct output_def_pair.
        (alias_pairs): Rename from output_defs.
        (find_decl_and_mark_needed): Split out from assemble_alias.
        (do_assemble_alias): New.
        (assemble_output_def): Remove.
        (finish_aliases_1, finish_aliases_2): New.
        (process_pending_assemble_output_defs): Remove.
        (assemble_alias): Defer aliases for which we don't yet have a
        non-external decl for the target symbol.
        * passes.c (rest_of_decl_compilation): Register variables with cgraph.
        * cgraphunit.c (cgraph_finalize_compilation_unit): Use finish_aliases_1.
        * toplev.c (compile_file): Use finish_aliases_2 instead of
        process_pending_assemble_output_defs.
        * tree.h (finish_aliases_1, finish_aliases_2): Declare.
        (process_pending_assemble_output_defs): Remove.

2005-03-16  Daniel Berlin  <dberlin@dberlin.org>
        
        Fix PR tree-optimization/20489

        * tree-ssa-alias.c (push_fields_onto_fieldstack): DTRT
        for empty structures.

2005-03-16  Daniel Berlin  <dberlin@dberlin.org>

        Fix PR tree-optimization/20490
        
        * tree-ssa-pre.c (create_expression_by_pieces): Use
        force_gimple_operand on result of fold.

2005-03-16  Andrew Pinski  <pinskia@physics.uc.edu>

        * config/i386/emmintrin.h (_mm_extract_epi16): Correct the number
        of closing parenthesis.

2005-03-16  Kazu Hirata  <kazu@cs.umass.edu>

        * builtins.c (expand_movstr): Update a call to
        fold_builtin_strcpy.
        (expand_builtin_strncpy): Update a call to
        fold_builtin_strncpy.
        (fold_builtin_strcpy, fold_builtin_strncpy): Take decomosed
        arguments of CALL_EXPR.
        (fold_builtin_1): Update calls to fold_builtin_strcpy and
        fold_builtin_strncpy.
        * tree-ssa-ccp.c (ccp_fold_builtin): Likewise.
        * tree.h: Update the prototypes of fold_builtin_strcpy and
        fold_builtin_strncpy.

2005-03-16  Steven Bosscher  <stevenb@suse.de>
            Dorit Naishlos  <dorit@il.ibm.com>

        * tree-vect-analyze.c (vect_enhance_data_refs_alignment): Copy 
        UNITS_PER_SIMD_WORD to a local variable to avoid a "division by zero" 
        error.

2005-03-16  Steven Bosscher  <stevenb@suse.de>

        * tree-inline.c (walk_type_fields, walk_tree,
        walk_tree_without_duplicates): Move from here...
        * tree.c: ...to here.

2005-03-15  Zack Weinberg  <zack@codesourcery.com>

        * BASE-VER, DATESTAMP, DEV-PHASE: New files.
        * Makefile.in (gcc_version, gcc_version_trigger, ): Delete.
        (BASEVER, DEVPHASE, DATESTAMP, BASEVER_c, DEVPHASE_c, DATESTAMP_c)
        (BASEVER_s, DEVPHASE_s, DATESTAMP_s): New variables.
        (version): Define using $(BASEVER_c).
        (Makefile, config.status, build/gcov-iov.o): No longer depends on
        version.c.
        (version.o): Depend on version files; add custom generation command.
        (prefix.o): Define BASEVER on command line.
        (s-iov): Depend on version files; adjust command.
        (TEXI_CPP_FILES, TEX_IGCC_FILES, TEXI_GCCINT_FILES, TEXI_CPPINT_FILES):
        Add gcc-vers.texi.
        (gcc-vers.texi): New rule.
        (doc/%.info, doc/%.dvi): Add -I . to command line.
        (doc/gccinstall.dvi): Likewise.
        (PACKAGE): Delete.  All uses replaced with "gcc".
        * aclocal.m4: Do not include gcc-version.m4.
        * configure.ac: Do not invoke TL_AC_GCC_VERSION.
        Do not AC_SUBST nor AC_DEFINE PACKAGE or VERSION.
        Set is_release based on contents of DEV-PHASE.
        Set gcc_version based on contents of BASE-VER.
        Define WIN32_REGISTRY_KEY only if the user overrode the default.
        * config.in, configure: Regenerate.
        * gccbug.in: Determine version of GCC in use at runtime.
        * gcov-iov.c: Get version number and development phase from
        command line, not by including version.c.
        * intl.c: Replace all uses of PACKAGE with "gcc".
        * libada-mk.in: Delete unused "gcc_version" variable.
        * prefix.c: Default WIN32_REGISTRY_KEY to BASEVER.
        * version.c: (VERSUFFIX): New hook for redistributors; adjust
        commentary to match.
        (version_string): Put together from pieces.
        * config/alpha/x-vms: Do not use $(gcc_version).
        * config/i386/t-nwld: Likewise.
        * doc/include/gcc-common.texi: Include gcc-vers.texi for
        version-GCC and DEVELOPMENT.

2005-03-15  Roger Sayle  <roger@eyesopen.com>

        PR tree-optimization/17454
        * tree.c (tree_size): Add case for TREE_BINFO.
        * fold-const.c (fold_checksum_tree): Only clear the overloaded
        field TYPE_CACHED_VALUES if TYPE_CACHED_VALUES_P is set.

2005-03-15  Roger Sayle  <roger@eyesopen.com>

        * optabs.c (expand_doubleword_mult): Avoid clobbering op0 and
        op1 whilst expanding the signed widenening multiply variant.

2005-03-15  Richard Sandiford  <rsandifo@redhat.com>

        * toplev.c (display_target_options): Avoid unused variable warning if
        TARGET_SWITCHES and TARGET_OPTIONS are both undefined.
        * config/mips/mips.c (mips_arch_string, mips_tune_string): Make static.
        (mips_isa_string, mips_abi_string, mips_fix_vr4130_string): Delete.
        (mips_isa): Initialize to MIPS_ABI_DEFAULT.
        (mips_isa_info): New variable.
        (mips_parse_cpu): Remove the first argument and leave the caller
        to report errors.
        (TARGET_HANDLE_OPTION): Override default.
        (mips_handle_option): New function.  Move option validation code from...
        (override_options): ...here.  Update calls to mips_parse_cpu.
        * config/mips/mips.h (mips_arch_string, mips_tune_string)
        (mips_isa_string, mips_abi_string, TARGET_OPTIONS)
        (SUBTARGET_TARGET_OPTIONS): Delete.
        * config/mips/mips.opt (mabi=, march=, mflush-func=, mips)
        (mno-flush-func, mtune=): New options.

2005-03-15  Roger Sayle  <roger@eyesopen.com>
            Richard Henderson  <rth@redhat.com>

        * real.c (c4x_single_format, c4x_extended_format): Provide values
        for signbit_ro for c4x's single and extended floating point formats.
        * optabs.c (expand_copysign): Use the floating point format's
        signbit_ro for expanding via expand_copysign_absneg, and it's
        signbit_rw field for expanding via expand_copysign_bit.

2005-03-15  Dorit Naishlos  <dorit@il.ibm.com>

        * tree-vectorizer.h (unknown_alignment_for_access_p): Replaced by
        known_alignment_for_access_p.
        (known_alignment_for_access_p): New.
        (do_peeling_for_alignment): Field made int instead of bool and renamed
        to peeling_for_alignment.
        (LOOP_DO_PEELING_FOR_ALIGNMENT): Renamed to LOOP_PEELING_FOR_ALIGNMENT.
        * tree-vect-analyze.c (vect_determine_vectorization_factor): New. This
        functionality used to be in vect_analyze_operations.
        (vect_analyze_operations): Code to determine vectorization factor was
        moved to vect_determine_vectorization_factor.
        (vect_enhance_data_refs_alignment): Update to correct alignment when it
        is known instead of -1.  Set LOOP_PEELING_FOR_ALIGNMENT to peeling
        factor.
        (vect_analyze_loop): Call vect_determine_vectorization_factor (used to
        be part of vect_analyze_operations).
        * tree-vectorizer.c (slpeel_tree_peel_loop_to_edge): Use fold when
        creating the guard condition, as the number of iterations may be
        constant.
        (slpeel_tree_peel_loop_to_edge): Use new name of
        LOOP_DO_PEELING_FOR_ALIGNMENT. Set it to 0 instead of false.
        * tree-vect-transform.c (vect_gen_niters_for_prolog_loop): Handle known
        alignment case more efficiently. Use LOOP_PEELING_FOR_ALIGNMENT.
        (vect_do_peeling_for_alignment): Use fold.
        (vect_transform_loop): Use new name of LOOP_DO_PEELING_FOR_ALIGNMENT.

        (vect_update_inits_of_dr): Renamed to
        vect_update_init_of_dr.
        (vect_update_inits_of_drs): Use new name of vect_update_inits_of_dr.
        (vectorizable_store): Fix assertion to use == instead of =.

2005-03-15  Daniel Jacobowitz  <dan@codesourcery.com>

        * config/arm/arm.h (CONDITIONAL_REGISTER_USAGE): Don't clear
        call_used_regs for wCG registers.

2005-03-15  Ulrich Weigand  <uweigand@de.ibm.com>

        * config/s390/s390.c (s390_secondary_output_reload_class): Adapt check
        for non-offsettable memory references to cope with outstanding reload
        replacements, take 2.

2005-03-15  Uros Bizjak  <uros@kss-loka.si>

        PR target/18668
        * config/i386/i386.h (x86_fisttp): New.
        (TARGET_FISTTP): New macro.
        * config/i386/i386.c (x86_fisttp): Set for NOCONA.
        (output_fix_trunc): Add fisttp parameter.  Generate fisttp x87
        instruction when fisttp flag is set.
        * config/i386/i386-protos.h (output_fix_trunc): Change declaration.

        * config/i386/i386.md (type attribute): Add fisttp.
        (unit attribute): Set to i387 for fisttp type.
        (X87MODEF, X87MODEI, SSEMODEF, SSEMODEI24): New mode macros.
        (fix_truncxfdi2, fix_truncxfsi2): Generate fisttp patterns for
        TARGET_FISTTP.
        (fix_truncdfdi2, fix_truncsfdi2, fix_truncdfsi2, fix_truncsfsi2):
        Generate fisttp patterns for TARGET_FISTTP. Implement using mode
        macros.
        (fix_truncxfhi2, fix_truncdfhi2, fix_truncsfhi2): Generate fisttp
        patterns for TARGET_FISTTP.  Enable patterns for
        (TARGET_FISTTP && !TARGET_SSE_MATH). Implement using mode macros.
        (fix_trunc<mode>_i387_fisttp_1, fix_trunc<mode>_i387_fisttp,
        fix_trunc<mode>_i387_fisttp_with_temp): New instruction patterns to
        implement fisttp x87 insn.
        (fix_trunc*_i387_fisttp splitters): New patterns.
        (*fix_truncdi_i387, *fix_truncsi_i387, *fix_trunchi_i387):
        Rename to *fix_trunc<mode>_i387_1.  Implement using mode macros.
        Disable patterns for TARGET_FISTTP.  Add comment about FLAGS_REG
        clobber.
        (fix_truncdi_memory, fix_truncdi_nomemory, fix_trunchi_nomemory):
        Rename to fix_trunc<mode>_i387 and fix_trunc<mode>_i387_with_temp.
        Implement using mode macros. Disable patterns for TARGET_FISTTP.
        (fix_truncsi_memory, fix_truncsi_nomemory, fix_trunchi_memory,
        fix_trunchi_nomemory): Rename to fix_trunc<mode>_i387 and
        fix_trunc<mode>_i387_with_temp. Implement using mode macros.
        Disable patterns for TARGET_FISTTP.
        (fix_trunc*_i387 splitters): Implement usign mode macros.
        (fix_truncdfdi_sse, fix_truncsfdi_sse, fix_truncdfsi_sse,
        fix_truncsfsi_sse): Disable for (TARGET_FISTTP && !TARGET_SSE_MATH).
        (fix_trunx*_sse peephole2s): Implement using mode macros.

2005-03-15  J"orn Rennecke <joern.rennecke@st.com>

        PR rtl-optimization/20291
        * combine.c (try_combine): If splitting fails, re-try with
        original combined pattern, i.e. before clobber stripping.

2005-03-14  Eric Christopher  <echristo@redhat.com>

        * config/mips/mips.h (DWARF_CIE_DATA_ALIGNMENT): Change for
        STACK_GROWS_DOWNWARD.

2005-03-14  Roger Sayle  <roger@eyesopen.com>

        * real.h (struct real_format): Split the signbit field into two
        two fields, signbit_ro and signbit_rw.
        * real.c (ieee_single_format, mips_single_format, ieee_double_format,
        mips_double_format, ieee_extended_motorola_format,
        ieee_extended_intel_96_format, ieee_extended_intel_96_round_53_format,
        ieee_extended_intel_128_format, ibm_extended_format,
        mips_extended_format, ieee_quad_format, mips_quad_format,
        vax_f_format, vax_d_format, vax_g_format, i370_single_format,
        i370_double_format, c4x_single_format, c4x_extended_format,
        real_internal_format): Update initializers for new field.
        * builtins.c (expand_builtin_signbit): Use signbit_ro field of the
        real_format structure.
        * optabs.c (expand_absneg_bit, expand_copysign): Use signbit_rw
        field of the real_format structure.

2005-03-14  Daniel Berlin <dberlin@dberlin.org>

        Fix PR tree-optimization/20458

        * tree-flow-inline.h (mark_call_clobbered): Don't fiddle
        DECL_EXTERNAL on STRUCT_FIELD tags.
        (clear_call_clobbered): Ditto.
        * tree-ssa-operands.c (note_addressable): Make sure the original
        variable doesn't slip into the addressable list if we have
        subvars.
        * tree-tailcall.c (suitable_for_tail_opt_p): Look at STRUCT_FIELD
        tags too.

2005-03-14  Geoffrey Keating  <geoffk@apple.com>

        * doc/cppopts.texi (-fexec-charset): Add concept index entry.
        (-fwide-exec-charset): Likewise.
        (-finput-charset): Likewise.
        * doc/invoke.texi (Warning Options): Document -Wnormalized=.
        * c-opts.c (c_common_handle_option): Handle -Wnormalized=.
        * c.opt (Wnormalized): New.

2005-03-14  Devang Patel  <dpatel@apple.com>

        * doc/invoke.texi: Add reference to Visibility document.

2005-03-14  Richard Sandiford  <rsandifo@redhat.com>

        * config.gcc (mips*-*-*): Rename MASK_SPLIT_ADDRS to
        MASK_SPLIT_ADDRESSES.
        * config/mips/mips.h (target_flags, mips_fix_vr4130_string): Delete.
        (MASK_INT64, MASK_LONG64, MASK_SPLIT_ADDR, MASK_NO_FUSED_MADD)
        (MASK_EXPLICIT_RELOCS, MASK_MEMCPY, MASK_SOFT_FLOAT)
        (MASK_FLOAT64, MASK_ABICALLS, MASK_XGOT, MASK_LONG_CALLS)
        (MASK_64BIT, MASK_EMBEDDED_DATA, MASK_BIG_ENDIAN)
        (MASK_SINGLE_FLOAT, MASK_MAD, MASK_4300_MUL_FIX, MASK_MIPS16)
        (MASK_NO_CHECK_ZERO_DIV, MASK_BRANCHLIKELY)
        (MASK_UNINIT_CONST_IN_RODATA, MASK_FIX_R4000, MASK_FIX_R4400)
        (MASK_FIX_SB1, MASK_FIX_VR4120, MASK_VR4130_ALIGN)
        (MASK_FP_EXCEPTIONS, MASK_DIVIDE_BREAKS, MASK_PAIRED_SINGLE)
        (MASK_MIPS3D, MASK_SYM32, MASK_DEBUG, MASK_DEBUG_D)
        (MASK_MIPS_TFILE, TARGET_INT64, TARGET_LONG64, TARGET_FLOAT64)
        (TARGET_64BIT, TARGET_SPLIT_ADDRESSES, TARGET_DEBUG_MODE)
        (TARGET_DEBUG_D_MODE, TARGET_MEMCPY, TARGET_ABICALLS)
        (TARGET_XGOT, TARGET_SOFT_FLOAT, TARGET_HARD_FLOAT)
        (TARGET_LONG_CALLS, TARGET_EMBEDDED_DATA)
        (TARGET_UNINIT_CONST_IN_RODATA, TARGET_BIG_ENDIAN)
        (TARGET_SINGLE_FLOAT, TARGET_DOUBLE_FLOAT, TARGET_MAD)
        (TARGET_FUSED_MADD, TARGET_4300_MUL_FIX, TARGET_CHECK_ZERO_DIV)
        (TARGET_DIVIDE_TRAPS, TARGET_BRANCHLIKELY, TARGET_FIX_SB1)
        (TARGET_FIX_R4000, TARGET_FIX_R4400, TARGET_FIX_VR4120)
        (TARGET_FIX_VR4130, TARGET_VR4130_ALIGN, TARGET_FP_EXCEPTIONS)
        (TARGET_PAIRED_SINGLE_FLOAT, TARGET_MIPS3D, TARGET_SYM32)
        (TARGET_EXPLICIT_RELOCS): Delete.
        (TARGET_SWITCHES, SUBTARGET_TARGET_SWITCHES): Delete.
        (TARGET_OPTIONS): Remove entry for -mfix-vr4130.
        * config/mips/mips.c (TARGET_DEFAULT_TARGET_FLAGS): Define.
        (override_options): Set MASK_LONG64 if -mint64 is given and no
        -mlongXX option is.  Complain about -mint64 -mlong32.
        (override_options, CMP_BUILTINS, mips_bdesc, sb1_desc): Rename
        MASK_PAIRED_SINGLE to MASK_PAIRED_SINGLE_FLOAT.
        * config/mips/mips.opt: New file.

2005-03-14  Richard Sandiford  <rsandifo@redhat.com>

        * config.gcc (extra_options): New variable for listing option files.
        Add ${cpu_type}/${cpu_type}.opt to it if that file exists.
        * configure.ac (extra_opt_files): New AC_SUBST variable.
        (tm_file_list, tm_include_list): Include options.h first.
        * configure: Regenerate.
        * Makefile.in (extra_opt_files, ALL_OPT_FILES): New variables.
        (s-options): Use $(ALL_OPT_FILES) instead of $(lang_opt_files)
        (s-options-h): New rule.
        (options.h): Depend on it.
        (TEXI_GCCINT_FILES): Add options.texi.
        * hooks.h (hook_bool_size_t_constcharptr_int_true): Declare.
        * hooks.c (hook_bool_size_t_constcharptr_int_true): New function.
        * target.h (gcc_target): Add default_target_flags and handle_option.
        * target-def.h (TARGET_DEFAULT_TARGET_FLAGS)
        (TARGET_HANDLE_OPTION): New macros.
        (TARGET_INITIALIZER): Include them.
        * opt-functions.awk (opt_args, nth_arg): New functions.
        (switch_flags): Handle the "Target" flag.
        (var_args): Delete.
        (var_name): Use opt_args and nth_arg.
        (var_set, var_ref): Likewise.  Handle "Mask" and "InverseMask".
        * opth-gen.awk: Declare target_flags.  Declare MASK_* and TARGET_*
        macros for the "Mask" and "InverseMask" options.
        * opts.h (cl_var_cond): New enum.
        (cl_option): Replace the "has_set_value" and "set_value" fields with
        "var_cond" and "var_value".
        (CL_TARGET): New macro.
        (option_enabled, print_filtered_help): Declare.
        (decode_options): Move definition.
        * opts.c (handle_option): Search for the original option before
        removing any "no-" prefix.  Handle CL_TARGET.  Adjust for the new
        var_cond and var_value fields.  Use targetm.handle_option to handle
        target options.
        (decode_options): Set target_flags to targetm.default_target_flags.
        (print_filtered_help): Make global.  Handle CL_TARGET.
        (option_enabled): New function.
        * toplev.c (target_switches): Guard with #ifdef TARGET_SWITCHES.
        (display_target_options, set_target_switch, print_switch_values)
        (default_pch_valid_p): Guard uses of target_switches with
        #ifdef TARGET_SWITCHES.  Also...
        (display_target_options): Display the CL_TARGET entries in cl_options.
        (set_target_option): Don't complain about the "" option when
        TARGET_SWITCHES is undefined.
        (print_switch_values): Use option_enabled.
        (default_pch_valid_p): Check cl_options[] when looking for something
        that has changed the value of target_flags.
        * c.opt: Remove documentation from top of file.
        * doc/gccint.texi: Add an "Options" chapter.  Include options.texi.
        * doc/sourecebuild.texi: Refer to the new options documentation
        instead of c.opt.  Document machine-specific .opt files.
        * doc/tm.texi (target_flags): Say that this variable is declared
        by options.h.
        (TARGET_DEFAULT_TARGET_FLAGS, TARGET_HANDLE_OPTION): Document.
        (TARGET_SWITCHES, TARGET_OPTIONS): Refer to the option files as
        an alternative.
        * doc/options.texi: New file.

2005-03-14  Alexandre Oliva  <aoliva@redhat.com>

        PR middle-end/18628
        * cse.c (fold_rtx_mem): Don't fold a load from a jumptable into a
        register.

2005-03-14  Alexandre Oliva  <aoliva@redhat.com>

        PR c++/20280
        * gimplify.c (gimplify_cond_expr): Add fallback argument.  Use a
        temporary variable of pointer type if an lvalues is required.
        (gimplify_modify_expr_rhs): Request an rvalue from it.
        (gimplify_expr): Pass fallback on.

2005-03-14  Kazu Hirata  <kazu@cs.umass.edu>

        * cfgbuild.c: Update comments.

2005-03-14  Roger Sayle  <roger@eyesopen.com>

        PR rtl-optimization/17236
        * optabs.c (expand_doubleword_mult): New helper function split out
        from expand_binop.  Permute the order in which instructions are
        emitted to minimize the number of simultaneously live registers.
        (expand_binop): Call expand_doubleword_mult to synthesize a double
        word multiplication.

2005-03-14  Kazu Hirata  <kazu@cs.umass.edu>

        * basic-block.h: Update the prototypes of cached_make_edge and
        rtl_make_eh_edge.
        * cfg.c (cached_make_edge): Take edge_cache representing one
        row of the adjacency matrix of edges.
        * cfgbuild.c (make_label_edge, rtl_make_eh_edge): Likewise.
        (make_edges): Initialize edge_cache to represent one row of
        the adjacency matrix of edges.

2005-03-14  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-ssa-phiopt.c (minmax_replacement, blocks_in_phiopt_order):
        New functions.
        (tree_ssa_phiopt): Use blocks_in_phiopt_order and minmax_replacement.
        Remove unused removed_phis variable.
        (conditional_replacement): Use build1/build2.
        (abs_replacement): Use last_and_only_stmt and build1/build2.

2005-03-14  Zdenek Dvorak  <dvorakz@suse.cz>

        * builtin-attrs.def (ATTR_NOVOPS, ATTR_NOVOPS_LIST,
        ATTR_PURE_NOTHROW_NOVOPS_LIST): New.
        * builtins.def (ATTR_MATHFN_FPROUNDING): Use NOVOPS.
        (BUILT_IN_PREFETCH): Set the NOVOPS attribute.
        * c-common.c (handle_novops_attribute): New function.
        (c_common_attribute_table): Add "no vops" entry.
        * c-decl.c (merge_decls): Copy DECL_IS_NOVOPS.
        * calls.c (flags_from_decl_or_type): Set ECF_NOVOPS.
        * tree-ssa-operands.c (get_call_expr_operands): Do not
        create virtual operands for calls with ECF_NOVOPS flag.
        * tree.h (DECL_IS_NOVOPS): New macro.
        (struct tree_decl): Add novops_flag.
        (ECF_NOVOPS): New constant.

2005-03-14  Uros Bizjak  <uros@kss-loka.si>

        PR target/17688
        * config/i386/i386.c (x86_use_himode_fiop): New.
        (x86_use_simode_fiop): Rename from x86_use_fiop.
        * config/i386/i386.h (x86_use_himode_fiop): Declare.
        (TARGET_USE_HIMODE_FIOP): New.
        (x86_use_simode_fiop): Rename from x86_use_fiop.
        (TARGET_USE_SIMODE_FIOP): Rename from TARGET_USE_FIOP.

        * config/i386/i386.md (X87MODEI12): New mode macro define.
        (*cmpfp_<mode>): Rename from *cmpfp_si.  Use X87MODEI12 mode macro
        to implement x87 FP compare with HImode input operands.
        (*fp_jcc_8<mode>_387, splitter): Rename from *fp_jcc_8_387.
        Use X87MODEI12 mode macro to handle HImode input operands.
        (*fop_sf_2<mode>_i387, *fop_sf_3<mode>_i387, *fop_df_2<mode>_i387,
        *fop_df_3<mode>_i387, *fop_xf_2<mode>_i387, *fop_xf_3<mode>_i387):
        Renamed from *fop_sf_2_i387, *fop_sf_3_i387, *fop_df_2_i387,
        *fop_df_3_i387, *fop_xf_2_i387, *fop_xf_3_i387. Use X87MODEI12 mode
        macro to implement x87 operators with HImode input operands.
        (fop splitters): Use X87MODEI12 mode macro to handle HImode
        input operands.

2005-03-14  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-cfg.c (find_taken_edge_cond_expr): Use zero_p instead of
        integer_zerop.
        * tree-gimple.c (is_gimple_min_invariant): Consider overflowed
        constants invariant.

2005-03-14  Zdenek Dvorak  <dvorakz@suse.cz>

        * basic-block.h (BB_VISITED): Removed.
        * cfganal.c (dfs_enumerate_from): Do not use BB_VISITED flag.

2005-03-14  Falk Hueffner  <falk@debian.org>

        PR bootstrap/20424
        * config/alpha/alpha.c (alpha_fold_builtin_cmpbge): Fix typo.

2005-03-14  Kazu Hirata  <kazu@cs.umass.edu>

        * ggc-zone.c: Fix comment typos.

        * alloc-pool.c, except.h, ggc-common.c, ggc-zone.c, ggc.h,
        stringpool.c, config/mips/mips-protos.h: Update copyright.

2005-03-14  Alan Modra  <amodra@bigpond.net.au>

        * config/rs6000/rs6000-protos.h: Replace "struct rtx_def *"
        throughout with its typedef, "rtx".
        * config/rs6000/rs6000.c: Likewise.  Formatting fixes.
        (rs6000_tls_symbol_ref_1): Remove inline keyword.
        * config/rs6000/rs6000.h (REG_ALLOC_ORDER): Formatting.  Reorder
        regs in comment to match code.

2005-03-14  Kazu Hirata  <kazu@cs.umass.edu>

        * except.c (check_handled): Make it static.
        * except.h: Remove the corresponding prototype.

        * function.c (get_func_frame_size): Make it static.
        * function.h: Remove the corresponding type.

        * regclass.c (reg_class_superclasses, reg_class_subclasses):
        Make them static.
        * hard-reg-set.h: Remove the corresponding declarations.

        * tree-cfg.c (verify_stmts): Check that
        bb_for_stmt (stmt) == bb for every PHI node and statement.

2005-03-14  Alan Modra  <amodra@bigpond.net.au>

        * config.gcc: Remove excess indentation.
        (powerpc*-*-*, rs6000-*-*): Accept --with-cpu/tune power5 and 8548.

2005-03-13  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/19331
        * tree.c (get_unwidened): Treat CONVERT_EXPR and NOP_EXPR identically.
        * fold-const.c (fold_sign_changed_comparison): Likewise.
        (fold_binary): Optimize comparisons against widened operands if
        the extension is represented by a CONVERT_EXPR, same as a NOP_EXPR.

2005-03-13  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * config/sparc/sparc.c (struct_value_alias_set): New global variable.
        (sparc_override_options): Initialize it.
        (sparc_struct_value_rtx): Set it on the MEM to be returned.

2005-03-13  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/predicates.md (mem_or_easy_const_operand): Delete.
        (reg_or_none500mem_operand): New predicate.
        (zero_reg_mem_operand): New predicate.
        * config/rs6000/rs6000.md (extendsfdf2): Change operand1 predicate
        to reg_or_none500mem_operand.
        (extendsfdf2_fpr): Add MEM alternative.
        (extenddftf2_internal): Change operand2 predicate to
        zero_reg_mem_operand.

2005-03-13  Daniel Jacobowitz  <dan@codesourcery.com>

        * ggc-zone.c: Rewritten.

        * alloc-pool.c (dump_alloc_pool_statistics): Don't print statistics
        if there are none.
        * configure.ac: Define GGC_ZONE for --with-gc=zone.
        * config.in: Regenerated.
        * configure: Regenerated.
        * gengtype.c (write_types_process_field, write_func_for_structure):
        Pass new argument to gt_pch_note_object.
        * ggc-common.c (struct ptr_data): Add TYPE.
        (gt_pch_note_object): Take TYPE argument and save it.
        (call_count): Update call to ggc_pch_count_object.
        (call_alloc): Update call to ggc_pch_alloc_object.
        (gt_pch_save): Call ggc_pch_prepare_write after paddng the PCH
        file.
        * ggc-none.c (rtl_zone, garbage_zone, ggc_alloc_zone_stat): Delete.
        * ggc-page.c (rtl_zone, tree_zone, garbage_zone)
        (ggc_alloc_zone_stat): Delete.
        (ggc_pch_count_object, ggc_pch_alloc_object): Add TYPE argument.
        * ggc.h (gt_pch_note_object, ggc_pch_count_object)
        (ggc_pch_alloc_object): Update prototypes.
        (garbage_zone): Delete.
        (tree_zone, rtl_zone, ggc_alloc_zone_stat, ggc_alloc_zone): Move to
        GGC_ZONE conditional.  Update.  Change tree_zone and rtl_zone into
        pointers.
        (tree_id_zone): New variable.
        (ggc_alloc_cleared_zone): Remove unused.
        (ggc_alloc_zone): Define.
        (ggc_alloc_rtvec, ggc_alloc_tree): Update to use ggc_alloc_zone.
        * rtl.c (rtx_alloc_stat, shallow_copy_rtx_stat): Use
        ggc_alloc_zone_stat.
        * stringpool.c (gt_pch_n_S): Update call to gt_pch_note_object.
        * tree.c (copy_node_stat, make_tree_binfo_stat, make_tree_vec_stat)
        (tree_cons_stat, build1_stat): Update call to ggc_alloc_zone_stat.
        (make_node_stat): Likewise.  Use tree_id_zone.

2005-03-13  Daniel Jacobowitz  <dan@codesourcery.com>
            Joseph S. Myers  <joseph@codesourcery.com>

        * configure.ac: Check for MIPS TLS.
        * configure: Regenerated.
        * config/mips/mips-protos.h (enum mips_symbol_type): Add
        SYMBOL_TLS, SYMBOL_TLSGD, SYMBOL_TLSLDM, SYMBOL_DTPREL,
        SYMBOL_GOTTPREL, and SYMBOL_TPREL.
        * config/mips/mips.c (mips_regno_to_class): Handle V1_REG.
        (TARGET_HAVE_TLS, TARGET_CANNOT_FORCE_CONST_MEM): Define.
        (mips_classify_symbol, mips_symbolic_constant_p)
        (mips_symbolic_address_p, mips_symbol_insns): Handle TLS symbols.
        (mips_tls_operand_p, mips_call_tls_get_addr)
        (mips_legitimize_tls_address, mips_cannot_force_const_mem)
        (mips_tls_symbol_ref_1): New functions.
        (mips_legitimize_address, mips_legitimize_const_move): Call
        mips_legitimize_tls_address.
        (override_options): Handle V1_REG and TLS symbols.  Disable TLS
        for MIPS16.
        * config/mips/mips.h (enum reg_class, REG_CLASS_NAMES)
        (REG_CLASS_CONTENTS, GR_REG_CLASS_P): Include V1_REG.
        (mips_char_to_class): Document V1_REG.
        (HAVE_AS_TLS): Provide default.
        * config/mips/mips.md (UNSPEC_TLS_LDM, UNSPEC_TLS_GET_TP): New
        constants.
        (load_got<mode>): Renamed from *load_got<mode>.  Allow when
        !TARGET_ABICALLS.
        (tls_get_tp_<mode>): New instruction.

2005-03-13  Daniel Jacobowitz  <dan@codesourcery.com>

        * configure.ac: Update checks for target tools.
        * configure: Regenerated.

2005-03-13  Daniel Jacobowitz  <dan@codesourcery.com>

        * varasm.c (decl_tls_model): Check flag_shlib instead of flag_pic.

2005-03-13  Roger Sayle  <roger@eyesopen.com>

        * expmed.c (expand_mult): Use synthetic multiplication sequences for
        more classes of DImode multiplication by constant.  Allow both
        multiplication by small negative constants (by performing a
        multiplication by a positive constant and negating the result) and
        multiplications by large powers of two, by using a left shift.

2005-03-13  Kazu Hirata  <kazu@cs.umass.edu>

        * tree-into-ssa.c (find_idf): Speed up by putting the indexes
        of basic blocks into work_stack.

        * builtin-attrs.def, c-lex.c, c-pragma.h, reg-stack.c,
        config/mips/vr.h: Update copyright.

        * c-decl.c (c_init_decl_processing): Remove useless calls to
        build_function_type.

        * builtins.c (fold_trunc_transparent_mathfn,
        fold_fixed_mathfn, fold_builtin_atan, fold_builtin_trunc,
        fold_builtin_floor, fold_builtin_ceil, fold_builtin_round,
        fold_builtin_lround, fold_builtin_bitop, fold_builtin_memcpy,
        fold_builtin_strcpy, fold_builtin_strncpy,
        fold_builtin_signbit): Use TYPE (TYPE (fndecl)) instead of
        TREE_TYPE (exp).

        * builtins.c (expand_builtin_mathfn_3): Remove local variable
        before_call.

        * lambda-code.c (lambda_compute_auxillary_space): Remove local
        variable determinant.

        * tree-cfg.c (group_case_labels): Remove local variable type.

        * tree-ssa-live.c (build_tree_conflict_graph): Remove local
        variable ann.

        * tree-ssa-phiopt.c (value_replacement): Remove local variable
        result.

2005-03-13  Andy Hutchinson  <HutchinsonAndy@netscape.net>

        PR target/18251
        * config/avr/avr.md (movmemhi): Rewrite as RTL loop.
        (*movmemqi_insn): Delete.
        (*movmemhi): Delete.

2005-03-13  Kazu Hirata  <kazu@cs.umass.edu>

        * builtins.c (fold_builtin_classify): Take decomposed
        arguments of CALL_EXPR.
        (fold_builtin_1): Update a call to fold_builtin_classify.

2005-03-13  Joseph S. Myers  <joseph@codesourcery.com>

        PR c/20402
        * c-parser.c (c_parser_struct_or_union_specifier): Don't fall
        through into call to parser_xref_tag after parse error.
        (c_parser_struct_declaration): Consistently return NULL_TREE on
        error.

2005-03-12  Daniel Berlin  <dberlin@dberlin.org>

        * tree-flow-inline.h (ref_contains_array_ref): New function.
        (lookup_subvars_for_var): Ditto.
        (get_subvars_for_var): Ditto.
        (var_can_have_subvars): Ditto.

        * tree-flow.h (mem_tag_kind): Add STRUCT_FIELD.
        (struct subvar): New type.

        * tree-dfa.c (okay_component_ref_for_subvars): New function.

        * tree-optimize.c (init_tree_optimization_passes): Call
        pass_create_structure_vars.

        * tree-ssa-alias.c: Include vec.h.
        (init_alias_info): Don't auto-clear call clobbered on struct-field
        tags.
        (compute_flow_insensitive_aliasing): Handle subvars.
        (group_aliases): Handle STRUCT_FIELD aliases.
        (setup_pointers_and_addressables): Ditto.
        Don't mark variables non-addressable if they still have
        addressable subvars.
        Also mark subvars addressable when the real variable is marked
        addressable.
        (add_pointed_to_var): Try to prune the pointed-to set by only
        pointing to subvars when possible.
        Otherwise, make sure we set addresses_needed and pt_vars to
        properly include subvars.
        (bitpos_of_field): New function.
        (push_fields_onto_fieldstack): Ditto.
        (get_or_create_used_part_for): Ditto.
        (create_overlap_variables_for): Ditto.
        (find_used_portions): Ditto.
        (create_structure_vars): Ditto.
        (pass_create_structure_vars): New structure.

        * tree-ssa-operands.c (finalize_ssa_v_must_defs): Remove assert.
        (get_expr_operands): Handle subvars.  Also try to turn
        COMPONENT_REF accesses into must-defs now that we can accurately
        portray it.
        (note_addressable): Try to only mark as addressable those subvars
        we know a COMPONENT_REF touches.
        (overlap_subvar): New function.

        * tree-vect-analyze.c (vect_object_analysis): Add new parameter.
        Handle subvar storing.
        (vect_address_analysis): Update caller of vect_object_analysis.

        * tree-vect-transform.c (vect_create_data_ref_ptr): Copy subvars.

        * tree-vectorizer.h (struct _stmt_vec_info): Add subvars member.
        (STMT_VINFO_SUBVARS): New macro.

        * common.opts: add flag_tree_salias.

        * opts.c (decode_options): flag_tree_salias defaults to on.

        * doc/invoke.texi: Document fdump-tree-svars and -ftree-salias.

        * doc/tree-ssa.texi: Document structural alias analysis.

2005-03-12  Steven Bosscher  <stevenb@suse.de>

        * tree-cfg.c (make_goto_expr_edges): Don't use error_mark_node.
        * tree-ssa-dce.c (mark_stmt_necessary): Don't check for it.
        * tree-ssa-operands.c (get_expr_operands): Likewise.
        (get_expr_operands): Likewise for ERROR_MARK.

2005-03-12  Kazu Hirata  <kazu@cs.umass.edu>

        * tree-ssa.c (kill_redundant_phi_nodes): Remove local variable
        var.

        * tree-ssa-phiopt.c (tree_ssa_phiopt): Remove local variable
        removed_phis.

        * tree-ssa-pre.c (compute_avail): Remove local variable val.
        (mark_operand_necessary): Remove local variable ver.

        * tree-vect-transform.c (vect_get_new_vect_var): Remove local
        variable prefix_len.

        * value-prof.c (mod_subtract_transform): Remove local variable
        value.

        * builtins.c (fold_builtin_exponent): Take decomposed
        arguments of CALL_EXPR.
        (fold_builtin_1): Update a call to fold_builtin_exponent.

        * builtins.c (fold_builtin_logarithm): Take decomposed
        arguments of CALL_EXPR.
        (fold_builtin_1): Update a call to fold_builtin_logarithm.

        * c-decl.c (c_init_decl_processing): Remove local variables
        ptr_ftype_void and ptr_ftype_ptr.

        * gimplify.c (gimplify_expr): Remove local variables r0 and
        r1.

        * reg-stack.c (move_for_stack_reg): Remove local variable
        push_insn.
        (compare_for_stack_reg): Remove local variable flags_user.
        (convert_regs_1): Remove local variable deleted.

        * tree-if-conv.c (tree_if_convert_cond_expr): Remove local
        variable new_cond.
        (combine_blocks): Remove local variables exits and new_e.

        * tree-inline.c (expand_call_inline): Remove local variable
        decl.

        * tree-ssa-live.c (create_ssa_var_map,
        calculate_live_on_entry): Remove local variable snn.

2005-03-12  Geoffrey Keating  <geoffk@apple.com>

        * c-lex.c (c_lex_with_flags): Add parameter to call to
        cpp_spell_token.

2005-03-11  Per Bothner  <per@bothner.com>

        * c-tree.h (struct c_declarator): New id_loc field.
        * c-pragma.h (c_lex_with_flags): Take position reference.
        * c-lex.c (c_lex_with_flags): Set passed-in location from cpp token,
        iff USE_MAPPED_LOCATION. (Type doesn't match otherwise.)
        (c_lex): Pass dummy location to c_lex_with_flags.
        * c-parser.c (c_lex_one_token): Set c_token's location using
        c_lex_with_flags, instead of input_location, which might be "ahead".
        (c_parser_direct_declarator): Set declarator's id_loc from
        c_token's id_loc.
        * c-decl.c (grokdeclarator): Set DECL_SOURCE_LOCATION from
        declarator's id_loc, rather than probably-imprecise input_location.
        (build_id_declarator): Initialize c_declarator's id_loc field.

2005-03-11  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/20419
        * builtins.c (expand_builtin_signbit): Force the signbit's word
        into an integer register to avoid SUBREGs of floating point modes.

2005-03-12  Kazu Hirata  <kazu@cs.umass.edu>

        * cfglayout.c, loop-doloop.c, profile.c, target-def.h,
        target.h, targhooks.c, tracer.c, tree-ssa-loop-ch.c,
        tree-ssa-loop-unswitch.c, tree-ssa-loop.c, vec.c, vmsdbgout.c,
        config/m32r/m32r.md, config/xtensa/xtensa.h: Update copyright.

2005-03-11  David Edelsohn  <edelsohn@gnu.org>

        PR rtl-optimization/20306
        * expr.c (emit_move_complex): Set try_int false if mode is
        MODE_COMPLEX_FLOAT and mov_optab exists for inner mode.  Only try
        emit_block_move if try_int is true.

2005-03-11  Richard Henderson  <rth@redhat.com>

        PR target/20415
        * config/i386/mmx.md (vec_dupv4hi): Fix predicate.
        * config/i386/i386.c (ix86_expand_vector_init_duplicate): Update
        to match.

2005-03-11  Richard Sandiford  <rsandifo@redhat.com>

        * config/mips/mips.h (mips_fix_vr4130_string): Declare.
        (TARGET_FIX_VR4130): New macro.
        (TARGET_OPTIONS): Add -mfix-vr4130.
        (ISA_HAS_MACCHI): New macro.
        (ASM_SPEC): Add -mfix-vr4130.
        * config/mips/mips.c (mips_fix_vr4130_string): New variable.
        (override_options): Handle mips_fix_vr4130_string.
        (mips_avoid_hazards): Clear all_noreorder_p
        if we're working around VR4130 errata and the macc alternatives
        are not available.
        * config/mips/mips.md (mfhilo_<mode>): Turn into a define_expand.
        (*mfhilo_<mode>, *mfhilo_<mode>_macc): New insns.
        * config/mips/vr.h (DEFAULT_VR_ARCH): Set to mfix-vr4130.
        (MULTILIB_DEFAULTS): Remove leading "march=".
        (DRIVER_SELF_SPECS): Likewise.  Make -mfix-vr4130 imply -march=vr4130
        if no architecture option is given.
        * config/mips/t-vr (MULTILIB_OPTIONS): Use -mfix-vr4130 for the
        VR4130 multilibs.
        (MULTILIB_MATCHES): Map -march=vr4130 to the -mfix-vr4130 multilibs.
        * doc/invoke.texi: Document -mfix-vr4130.

2005-03-11  Richard Sandiford  <rsandifo@redhat.com>

        * config/mips/mips.c (override_options): Only warn about -mint64
        deprecation if TARGET_INT64.

2005-03-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtin-attrs.def (ATTR_NONNULL_LIST, ATTR_NOTHROW_NONNULL,
        ATTR_CONST_NOTHROW_NONNULL, ATTR_PURE_NOTHROW_NONNULL,
        ATTR_MALLOC_NOTHROW_NONNULL): New "nonnull" attribute lists which
        are non-specific regarding the nonnull parameter positions.
        (ATTR_NONNULL_1_2, ATTR_NONNULL_1_4, ATTR_NOTHROW_NONNULL_1_2,
        ATTR_NOTHROW_NONNULL_1_4, ATTR_CONST_NOTHROW_NONNULL_1,
        ATTR_PURE_NOTHROW_NONNULL_1, ATTR_PURE_NOTHROW_NONNULL_1_2,
        ATTR_MALLOC_NOTHROW_NONNULL_1): Delete.

        * builtins.def: Use the non-specific "nonnull" attibute lists.

2005-03-11  Zdenek Dvorak  <dvorakz@suse.cz>

        * basic-block.h (single_succ_p, single_pred_p, single_succ_edge,
        single_pred_edge, single_succ, single_pred): Improve comments.

2005-03-11  Zdenek Dvorak  <dvorakz@suse.cz>

        * basic-block.h (single_succ_p, single_pred_p, single_succ_edge,
        single_pred_edge, single_succ, single_pred): New inline functions.
        * bb-reorder.c (rotate_loop, find_traces_1_round,
        add_labels_and_missing_jumps, fix_up_fall_thru_edges,
        duplicate_computed_gotos): Use the single_succ/pred functions.
        * cfganal.c (forwarder_block_p): Ditto.
        * cfgbuild.c (compute_outgoing_frequencies): Ditto.
        * cfgcleanup.c (try_simplify_condjump, try_forward_edges,
        outgoing_edges_match, try_crossjump_to_edge, try_optimize_cfg,
        merge_seq_blocks): Ditto.
        * cfghooks.c (split_edge, tidy_fallthru_edges): Ditto.
        * cfglayout.c (fixup_reorder_chain): Ditto.
        * cfgloop.c (mark_single_exit_loops, update_latch_info,
        canonicalize_loop_headers, verify_loop_structure): Ditto.
        * cfgloopmanip.c (remove_path, unloop, loop_delete_branch_edge,
        mfb_update_loops, create_preheader, force_single_succ_latches,
        create_loop_notes): Ditto.
        * cfgrtl.c (rtl_can_merge_blocks, try_redirect_by_replacing_jump,
        force_nonfallthru_and_redirect, rtl_tidy_fallthru_edge,
        commit_one_edge_insertion, purge_dead_edges,
        cfg_layout_can_merge_blocks_p): Ditto.
        * except.c (sjlj_emit_function_enter): Ditto.
        * flow.c (init_propagate_block_info): Ditto.
        * function.c (thread_prologue_and_epilogue_insns): Ditto.
        * gcse.c (find_implicit_sets, bypass_conditional_jumps,
        insert_insn_end_bb): Ditto.
        * ifcvt.c (merge_if_block, find_if_block, find_if_case_1,
        find_if_case_2): Ditto.
        * lambda-code.c (perfect_nestify): Ditto.
        * lcm.c (optimize_mode_switching): Ditto.
        * loop-doloop.c (doloop_modify): Ditto.
        * loop-init.c (loop_optimizer_init): Ditto.
        * loop-iv.c (simplify_using_initial_values): Ditto.
        * loop-unroll.c (unroll_loop_runtime_iterations): Ditto.
        * loop-unswitch.c (unswitch_loop): Ditto.
        * modulo-sched.c (generate_prolog_epilog): Ditto.
        * predict.c (combine_predictions_for_insn, estimate_probability,
        tree_estimate_probability, last_basic_block_p,
        estimate_bb_frequencies): Ditto.
        * profile.c (branch_prob): Ditto.
        * regrename.c (copyprop_hardreg_forward): Ditto.
        * sched-rgn.c (is_cfg_nonregular, find_rgns, update_live): Ditto.
        * tracer.c (layout_superblocks): Ditto.
        * tree-cfg.c (tree_can_merge_blocks_p, tree_merge_blocks,
        cfg_remove_useless_stmts_bb, cleanup_control_flow,
        cleanup_control_expr_graph, disband_implicit_edges,
        tree_find_edge_insert_loc, bsi_commit_edge_inserts,
        tree_verify_flow_info, tree_make_forwarder_block,
        tree_forwarder_block_p, remove_forwarder_block,
        remove_forwarder_block_with_phi, merge_phi_nodes): Ditto.
        * tree-if-conv.c (tree_if_conversion): Ditto.
        * tree-mudflap.c (mf_build_check_statement_for): Ditto.
        * tree-ssa-dce.c (remove_dead_stmt): Ditto.
        * tree-ssa-dom.c (dom_opt_finalize_block): Ditto.
        * tree-ssa-loop-ch.c (should_duplicate_loop_header_p,
        copy_loop_headers): Ditto.
        * tree-ssa-loop-im.c (loop_commit_inserts): Ditto.
        * tree-ssa-loop-ivopts.c (compute_phi_arg_on_exit): Ditto.
        * tree-ssa-loop-manip.c (split_loop_exit_edge, ip_normal_pos,
        lv_adjust_loop_entry_edge, tree_ssa_loop_version): Ditto.
        * tree-ssa-loop-niter.c (simplify_using_initial_conditions): Ditto.
        * tree-ssa-loop-unswitch.c (simplify_using_entry_checks): Ditto.
        * tree-ssa-phiopt.c (tree_ssa_phiopt, value_replacement): Ditto.
        * tree-ssa-pre.c (compute_antic_aux, insert_aux, init_pre): Ditto.
        * tree-ssa-threadupdate.c (redirect_edges): Ditto.
        * tree-tailcall.c (independent_of_stmt_p, find_tail_calls,
        eliminate_tail_call, tree_optimize_tail_calls_1): Ditto.
        * tree-vect-analyze.c (vect_analyze_loop_form): Ditto.
        * tree-vect-transform.c (vect_update_ivs_after_vectorizer): Ditto.
        * tree-vectorizer.c (slpeel_update_phi_nodes_for_guard,
        slpeel_add_loop_guard): Ditto.

2005-03-11  James A. Morrison  <phython@gcc.gnu.org>

        PR tree-optimization/15784
        * fold-const.c (fold): Fold ~A + 1 to -A.  Fold -A - 1
        and -1 - A to ~A.

        * stmt.c (expand_case): Don't change index_type.  Convert minval
        to the proper type.

        PR tree-optimization/20130
        * fold-const.c (fold): Fold x * -1 into -x.

2005-03-11  Kaz Kojima  <kkojima@gcc.gnu.org>

        PR rtl-optimization/20331
        * rtlanal.c (modified_between_p): Check its address first for MEM.
        (modified_in_p): Likewise.

2005-03-11  Joseph S. Myers  <joseph@codesourcery.com>

        * config.gcc (hppa*64*-*-hpux11*): Use pa/t-hpux-shlib.

2005-03-10  Steven Bosscher  <stevenb@suse.de>

        * expr.c (expand_expr_real_1): If possible, use a conditional
        move for expanding MIN_EXPR and MAX_EXPR.
        Use temp for moving around rtx-en.

2005-03-10  Andrew Pinski  <pinskia@physics.uc.edu>

        PR rtl-opt/20412
        * simplify-rtx.c (simplify_relational_operation_1): Fix typo - check the
        correct mode.

2005-03-10  Roger Sayle  <roger@eyesopen.com>

        * builtins.c (expand_builtin_signbit): Extend to handle floating
        point modes wider than the largest integer type, using the
        operand_subword_force function to obtain the signbit's word.

2005-03-10  Jakub Jelinek  <jakub@redhat.com>

        PR target/20322
        * combine.c (try_combine): If recog_for_combine added CLOBBERs
        to NEWI2PAT, fail to combine if they are used by NEWPAT.

2005-03-10  Aldy Hernandez  <aldyh@redhat.com>

        * doc/invoke.texi: Add 8540 to list of cpus in rs6000 cpu section.

2005-03-10  Kazu Hirata  <kazu@cs.umass.edu>

        * tree-outof-ssa.c (analyze_edges_for_bb): Make the return
        type void.
        (perform_edge_inserts): Unconditionally call
        free_dominator_info.

        * tree-outof-ssa.c (analyze_edges_for_bb): Update a comment.

2005-03-10  Bob Wilson  <bob.wilson@acm.org>

        * config/xtensa/xtensa.h (MEMBER_TYPE_FORCES_BLK): Define.

2005-03-10  Nathan Sidwell  <nathan@codesourcery.com>

        * bitmap.c (bitmap_copy): Remove manual loop unrolling.

        * value-prof.c (rtl_find_values_to_profile): Use gcc_assert and
        gcc_unreachable.
        (rtl_register_value_prof_hooks,
        tree_value_profile_transformations,
        tree_register_value_prof_hooks): Likewise.
        * var-tracking.c (stack_adjust_offset_pre_post,
        variable_htab_free, variable_union, dataflow_set_different_2,
        count_uses, variable_was_changed, set_frame_base_location,
        set_variable_part, emit_note_insn_var_location, vt_emit_notes,
        vt_add_function_parameters): Likewise.
        * varasm.c (named_section_real, named_section, make_decl_rtl,
        asm_emit_uninitialised, assemble_integer, decode_addr_const,
        const_hash_1, compare_constant, copy_constant, force_const_mem,
        output_constant_pool_2, output_constant_pool_1, output_constant,
        output_constructor, make_decl_one_only, decl_tls_model,
        default_no_named_section, default_elf_select_section_1,
        default_unique_section_1): Likewise.
        * vec.c (vec_gc_o_reserve, vec_heap_o_reserve): Likewise.
        * vmsdbgout.c (addr_const_to_string): Likewise.

        PR c++/20375
        * function.c (struct assign_parm_data_one): Remove last_named
        field.
        (assign_parm_find_data_types): Don't determine last_named.
        Reorder named_parm determination.
        (assign_parms): Only setup varargs on the last non-varadic
        parameter.

2005-03-10  Kazuhiro Inaoka  <inaoka.lazuhiro@renesas.com>

        * config/m32r/m32r.md (load_sda_base_32): New pattern.  Loads
        sda base address on medium model.

2005-03-10  Zdenek Dvorak  <dvorakz@suse.cz>

        * Makefile.in (tree-optimize.o): Add CFGLOOP_H dependence.
        * cfgloop.c (flow_loop_nodes_find): Export.
        * cfgloop.h (flow_loop_nodes_find, fix_loop_structure):
        Declare.
        * cfgloopmanip.c (fix_loop_structure): New function.
        * predict.c (predict_loops): Clean up the loops information.
        * tree-cfg.c (cleanup_tree_cfg_loop): New function.
        (tree_can_merge_blocks_p, remove_bb, tree_forwarder_block_p): Respect
        loop structure.
        * tree-flow.h (cleanup_tree_cfg_loop): Declare.
        (rewrite_into_loop_closed_ssa): Declaration changed.
        * tree-loop-linear.c (linear_transform_loops): Add argument to
        rewrite_into_loop_closed_ssa call.
        * tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
        * tree-ssa-loop-im.c (move_computations): Ditto.
        * tree-ssa-loop.c (tree_loop_optimizer_init): Ditto.
        * tree-vectorizer.c (vectorize_loops): Ditto.
        * tree-optimize.c: Include cfgloop.h.
        (execute_todo): Choose whether to call cleanup_tree_cfg or
        cleanup_tree_cfg_loop.
        * tree-ssa-loop-ivcanon.c (canonicalize_loop_induction_variables,
        (tree_unroll_loops_completely): Enable cleanup_tree_cfg_loop call.
        * tree-ssa-loop-unswitch.c (tree_ssa_unswitch_loops): Enable
        cleanup_tree_cfg_loop call.
        * tree-ssa-loop-manip.c (find_uses_to_rename_bb): New function.
        (find_uses_to_rename, rewrite_into_loop_closed_ssa): Support
        work on part of cfg.

2005-03-10  Jakub Jelinek  <jakub@redhat.com>

        PR inline-asm/20314
        * gimplify.c (gimplify_asm_expr): Handle input/output constraints
        with multiple alternatives.

        * stmt.c (parse_output_constraint): Fix a typo.

2005-03-09  Bob Wilson  <bob.wilson@acm.org>

        * config/xtensa/xtensa.h (TRAMPOLINE_TEMPLATE): Use "no-transform"
        assembly directive instead of deprecated "no-generics".

2005-03-09  Ulrich Weigand  <uweigand@de.ibm.com>

        * config/s390/s390.c (s390_secondary_output_reload_class): Adapt check
        for non-offsettable memory references to cope with outstanding reload
        replacements.
        * config/s390/s390.md ("reload_outti"): Call find_replacement to
        avoid losing outstanding address reloads.
        ("reload_outdi", "reload_outdf"): Likewise.

2005-03-09  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (fold_builtin_cbrt, fold_builtin_pow): Rearrange
        code.  Add more cbrt transformations.

2005-03-09  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * fold-const.c (fold_unary_to_constant): Add FIX_ROUND_EXPR case.

2005-03-09  Kazu Hirata  <kazu@cs.umass.edu>

        * fold-const.c (fold_unary, fold_binary, fold_ternary): Return
        NULL_TREE when a given tree is not simplified.
        (fold): Return the original tree when any of the functions
        mentioned above NULL_TREE.

        * fold-const.c (fold_unary, fold_binary): Take decomposed
        arguments, code, type, op0, and op1 in case of fold_binary.
        (fold): Update calls to fold_unary and fold_binary.

2005-03-09  Roger Sayle  <roger@eyesopen.com>

        * builtins.c (fold_builtin_unordered_cmp): Change prototype to take
        a fndecl and an arglist instead of a CALL_EXPR, exp.

2005-03-09  Kazu Hirata  <kazu@cs.umass.edu>

        * cfglayout.c (fixup_reorder_chain): Remove old_bb.

        * cfgrtl.c (cfg_layout_merge_blocks): Remove new_e.

        * expr.c (expand_assignment): Remove orig_to_rtx.

        * fold-const.c (int_const_binop): Remove no_overflow.

        * ifcvt.c (noce_emit_move_insn): Remove inmode.

        * loop-iv.c (get_biv_step_1): Remove lhs.

        * loop-unroll.c (analyze_insns_in_loop): Remove preheader.

        * real.c (real_nan): Remove neg.

        * function.c (thread_prologue_and_epilogue_insns): Remove i
        and newinsn.

        * tree-data-ref.c (array_base_name_differ_p): Remove ta and
        tb.

        * tree-eh.c (tree_could_trap_p): Remove idx.

        * tree-into-ssa.c (ann): Remove ann.

        * tree-outof-ssa.c (num_nodes): Remove num_nodes.

        * tree-sra.c (decide_block_copy): Remove inst_count.

        * tree-ssa-alias.c (may_alias_p): Remove v_ann.

        * tree-ssa-loop-im.c (lhs): Remove.

        * cfgbuild.c (state, STATE, SET_STATE,
        BLOCK_USED_BY_TABLEJUMP, FULL_STATE): Move just before
        make_edges.
        (make_edges): Speed up by skipping blocks with BLOCK_ORIGINAL.
        (find_basic_blocks): Set the state of each basic block to
        BLOCK_NEW.

2005-03-08  Jeff Law  <law@redhat.com>

        * tree-cfg.c (cleanup_control_flow): If removal of a computed
        goto results in the removal of edges in the CFG, then we need
        to recompute dominators.

2005-03-09  Ben Elliston  <bje@au.ibm.com>

        * c-common.c (c_do_switch_warnings): Comment fix.

2005-03-08  Julian Brown  <julian@codesourcery.com>

        * Patch from 2005-03-08 reverted for causing regressions and
        ppc-darwin bootstrap failure.

2005-03-08  Fariborz Jahanian <fjahanian@apple.com>

        * config/rs6000/rs6000.c (invalid_arg_for_unprototyped_fn):
        Define the real function for ppc-darwin.
        * c-typeck.c (convert_arguments): Check for target-specific
        invalid argument call to unprototyped function.
        * target-def.h (TARGET_INVALID_ARG_FOR_UNPROTOTYPED_FN):
        New Macro.
        * target.h (invalid_arg_for_unprototyped_fn): New field
        in struct calls.
        * targhooks.c (hook_invalid_arg_for_unprototyped_fn): New
        default target hook.
        * targhooks.h (hook_invalid_arg_for_unprototyped_fn):
        Declare.

2005-03-08  Kazu Hirata  <kazu@cs.umass.edu>

        * c-typeck.c (constructor_stack, constructor_range_stack,
        initializer_stack): Make them static.

        * cfg.c (rbi_pool): Make it static.

        * gimple-low.c (lower_stmt_body): Make it static.
        * tree-flow.h: Remove the corresponding prototype.  Don't
        declare lower_data.

        * sched-deps.c (cache_size): Make it static.

        * stor-layout.c (lang_adjust_rli): Make it static.

2005-03-08  Julian Brown  <julian@codesourcery.com>

        * config/elfos.h (MAKE_DECL_ONE_ONLY): Redefined to stop DECL_WEAK
        from being used for symbols with vague linkage when
        HAVE_GAS_COMDAT_GROUP is true.

2005-03-08  J"orn Rennecke <joern.rennecke@st.com>

        * jump.c (invert_jump_1): Don't call redirect_jump_1 with
        nlabel == JUMP_LABEL (jump).

2005-03-08  Kazu Hirata  <kazu@cs.umass.edu>

        * c-common.c, c-opts.c, combine.c, cse.c, dojump.c,
        gimplify.c, tree-dfa.c, tree-ssa-loop-ivopts.c,
        tree-ssa-phiopt.c, tree-ssa-pre.c, tree-ssa-sink.c,
        tree-vect-analyze.c, tree.def, tree.h: Fix comment formatting.

2005-03-08  Alexey Neyman  <alex.neyman@auriga.ru>

        PR c/14411
        * calls.c (flags_from_decl_or_type): Handle eturns_twice' attribute.
        * c-common.c (handle_returns_twice): New function.
        (c_common_attribute_table): Declare eturns_twice' attribute.
        * doc/extend.texi: Document eturns_twice' attribute.
        * tree.h (DECL_IS_RETURNS_TWICE): New macro.
        (struct tree_decl): Add returns_twice_flag.

2005-03-08  Kazu Hirata  <kazu@cs.umass.edu>

        * tree-ssa-phiopt.c: Fix a comment typo.

        * c-semantics.c, cfghooks.c, diagnostic.h, loop-iv.c,
        loop-unswitch.c, modulo-sched.c, stor-layout.c, tree-gimple.h,
        config/i386/cygwin1.c, doc/cfg.texi, doc/objc.texi: Update
        copyright.

2005-03-08  Richard Henderson  <rth@redhat.com>

        * config/alpha/alpha.c (code_for_builtin): Replace special-case
        builtin codes with ctzdi2, clzdi2, popcountdi2.
        (struct alpha_builtin_def): Add is_const.
        (zero_arg_builtins, one_arg_builtins, two_arg_builtins): Init it.
        (alpha_v8qi_u, alpha_v8qi_s, alpha_v4hi_u, alpha_v4hi_s): New.
        (alpha_init_builtins): Init them.  Set nothrow and const attributes
        on builtins.
        (alpha_fold_builtin_cmpbge, alpha_fold_builtin_zapnot,
        alpha_fold_builtin_extxx, alpha_fold_builtin_insxx,
        alpha_fold_builtin_mskxx, alpha_fold_builtin_umulh,
        alpha_fold_vector_minmax, alpha_fold_builtin_perr,
        alpha_fold_builtin_pklb, alpha_fold_builtin_pkwb,
        alpha_fold_builtin_unpkbl, alpha_fold_builtin_unpkbw,
        alpha_fold_builtin_cttz, alpha_fold_builtin_ctlz,
        alpha_fold_builtin_ctpop, alpha_fold_builtin): New.
        (TARGET_FOLD_BUILTIN): New.
        * config/alpha/alpha.md (UNSPEC_CTTZ): Remove.
        (UNSPEC_CTLZ, UNSPEC_CTPOP): Remove.
        (ffsdi2): Use ctz.
        (cttz, builtin_cttz, builtin_ctlz, builtin_ctpop): Remove.

2005-03-08  Ira Rosen  <irar@il.ibm.com>

        PR tree-optimization/20122
        * tree-vect-analyze.c (vect_object_analysis): Analyze initial
        condition of access function instead of base.

2005-03-07  Jeff Law  <law@redhat.com>
            Steven Bosscher  <stevenb@suse.de>

        * tree-cfg.c (find_taken_edge_computed_goto): New function.
        (find_taken_edge): Call find_taken_edge_computed_goto as
        appropriate.  Allow any gimple invariant rather than just
        INTEGER_CST for VAL.
        (cleanup_control_flow): Cleanup a computed goto which has turned
        into a simple goto.
        (tree_merge_blocks): If block B has any forced labels, move
        them to the start of block A.
        * tree-ssa-dom.c (thread_across_edge): Allow threading across
        computed gotos as well.
        * tree-ssa-threadupdate.c (remove_ctrl_stmt_and_useless_edges): Handle
        removal of unnecessary computed gotos too.
        (lookup_redirection_data): Fix type of INSERT argument.  Callers
        updated.

2005-03-08  Kazu Hirata  <kazu@cs.umass.edu>

        * tree-ssa-phiopt.c: Update copyright.  Fix indentations.
        Remove trailing spaces.

        * gimplify.c (gimple_push_bind_expr, gimple_pop_bind_expr,
        unshare_all_trees): Make them static.
        * tree-gimple.h: Remove the corresponding prototypes.

        * diagnostic.h: Remove unused prototype
        debug_output_buffer.
        * modulo-sched.c: Remove unused prototype
        set_row_column_for_ps.

        * tree-ssa-phiopt.c (tree_ssa_phiopt,
        replace_phi_edge_with_variable): Remove unused variable i.

2005-03-07  Per Bothner  <per@bothner.com>

        * tree.h (DECL_IS_BUILTIN): Reverted my patch from earlier today.

2005-03-06  Andrew Pinski  <pinskia@physics.uc.edu>

        PR tree-opt/17671
        * tree-ssa-phiopt.c (tree_ssa_phiopt): Rewrite so we base the
        bbs on the COND_EXPR instead of the PHI_NODEs.
        (candidate_bb_for_phi_optimization): Remove.
        (replace_phi_with_stmt): Rename to ...
        (replace_phi_edge_with_variable): this and change so that we
        replace the phi argument instead of removing the PHI.
        (conditional_replacement): Change so we deal with PHI with more
        than two arguments.
        (value_replacement): Likewise.
        (abs_replacement): Likewise.

2005-03-07  Aldy Hernandez  <aldyh@redhat.com>

        * config/rs6000/rs6000-protos.h: Rename output_e500_flip_eq_bit to
        output_e500_flip_gt_bit.

        * config/rs6000/rs6000.c (print_operand): case D: Print out bit 31
        as bit 31.
        (rs6000_generate_compare): Fix logic to look at the correct bits.
        (output_e500_flip_eq_bit): Rename to output_e500_flip_gt_bit.
        Look at GT bit.
        (rs6000_emit_sCOND): Rename gen_e500_flip_eq_bit to
        gen_e500_flip_gt_bit.  Rename gen_move_from_CR_eq_bit to
        gen_move_from_CR_gt_bit.

        * config/rs6000/rs6000.md ("move_from_CR_eq_bit"): Change bit
        ("move_from_CR_eq_bit"): Rename to move_from_CR_gt_bit.
        (UNSPEC_MV_CR_EQ): Rename to UNSPEC_MV_CR_GT.

        * config/rs6000/spe.md ("e500_cr_ior_compare"): New.
        (E500_CR_IOR_COMPARE): New constant.

2005-03-08  Earl Chew <earl_chew@agilent.com>
            David Billinghurst <David.Billinghurst@riotinto.com>

        * config/i386/host-cygwin.c: New file to support precompiled
        headers on cygwin
        * config/i386/x-cygwin: Use host-cygwin.c on cygwin host
        * config.host: Use above files for cygwin host.

2005-03-07  David Edelsohn  <edelsohn@gnu.org>

        * fold-const.c (fold_binary_op_with_conditional_arg): Fix typo
        ordering ops from earlier change.

2005-03-07  Per Bothner  <per@bothner.com>

        Various fixes to allow us to again build if --enable-mapped-location:
        * c-decl.c (finish_function): Use SET_EXPR_LOCATION instead of
        unavailable annotate_with_file_line, if USE_MAPPED_LOCATION.
        * tree-cfg.c (remove_bb): If USE_MAPPED_LOCATION, change type of
        local variable loc. Change logic appropriately.
        * tree-vect-transform.c (vect_finish_stmt_generation): Use
        EXPR_LOCATION rather than EXPR_LOCUS if USE_MAPPED_LOCATION.
        * c-parser.c (c_parser_for_statement): Initialize loc variable.
        * tree.h (DECL_IS_BUILTIN): Temporarily revert definition of
        DECL_IS_BUILTIN in the USE_MAPPED_LOCATION because of jc1 issues.

2005-03-07  Richard Sandiford  <rsandifo@redhat.com>

        PR rtl-optimization/19683
        * reload1.c (choose_reload_regs): Pass the number of bits, not the
        number of bytes, to smallest_int_for_mode.  Fix arguments to
        REG_CANNOT_CHANGE_MODE_P.

2005-03-07  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * reorg.c (relax_delay_slots): Check that the jump is
        conditional before trying to invert it.

2005-03-07  Kazu Hirata  <kazu@cs.umass.edu>

        * bb-reorder.c (max_entry_frequency, max_entry_frequency):
        Make them static.

        * calls (stack_arg_under_construction): Make it static.

        * flow.c (regs_live_at_setjmp): Make it static.
        * flow.h: Remove the corresponding prototype.

        * reload1.c (reload_startobj, reload_firstobj,
        something_needs_operands_changed, reload_inherited,
        reload_inheritance_insn, reload_override_in,
        reload_spill_index): Make them static.

        * recog.c (verify_changes): Make it static.
        * recog.h: Remove the corresponding prototype.

        * cfgbuild.c (find_sub_basic_blocks): Remove.
        * basic-block.h: Remove the corresponding prototype.
        * cfgexpand.c, cfgrtl.c: Don't mention find_sub_basic_blocks
        in comments.
        * doc/cfg.texi: Don't mention find_sub_basic_blocks.

        * tree-ssa-operands.c (check_build_stmt): Remove.

        * stor-layout.c (set_alignment): Remove.
        * tree.h: Remove the corresponding prototype.

        * tree-ssa-pre.c (has_abnormal_preds): Make it static.

        * tree-ssa-dce.c (control_dependence_map,
        visited_control_parents): Make them static.

        * cfghooks.c (verify_flow_info): Remove local variable
        num_bb_notes.

        * cfgrtl.c (rtl_verify_flow_info_1): Remove local variable
        last_bb_seen.

        * loop-unswitch.c (unswitch_loop): Remove local variable src.

2005-03-07  David Billinghurst <David.Billinghurst@riotinto.com>

        * config/i386/cygwin1.c(mingw_scan): Use xstrdup in calls to putenv.

2005-03-07  Joseph S. Myers  <joseph@codesourcery.com>

        * config/ia64/hpux.h (LINK_SPEC): Add -z.
        * config/ia64/ia64.c (ia64_function_value): Return a REG not a
        PARALLEL for an empty structure.

2005-03-07  Kazu Hirata  <kazu@cs.umass.edu>

        * fold-const.c (fold_binary): Remove handling of RANGE_EXPR.

        * fold-const.c (fold_binary): Unroll the very first "for"
        loop.

2005-03-06  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/predicates.md (branch_comparison_operator): Remove
        redundant match_code test.
        (scc_comparison_operator): Swap match_operand and match_code
        tests.
        (branch_positive_comparison_operator): Same.
        (trap_comparison_operator): Use comparison_operator and swap with
        match_code test.

2005-03-06  Marek Michalkiewicz  <marekm@amelek.gda.pl>

        PR target/20288
        * config/avr/avr.c (print_operand): Add 'p' and 'r'.
        (out_movhi_r_mr): Read low byte of volatile MEM first.
        (out_movhi_mr_r): Write high byte of volatile MEM first.

2005-03-05  Kazu Hirata  <kazu@cs.umass.edu>

        * cselib.c (reg_values, reg_values_size): Make them static.

        * cse.c (cse_reg_info_table): Make it static.

        * fold-const.c (fold_unary): Use build1 instead of copy_node.

2005-03-06  Zdenek Dvorak  <dvorakz@suse.cz>

        * cse.c (find_best_addr): Use canon_for_address.

2005-03-06  Kazu Hirata  <kazu@cs.umass.edu>

        * cse.c (fold_rtx_subreg, fold_rtx_mem): New.
        (fold_rtx): Call fold_rtx_subreg and fold_rtx_mem to handle
        SUBREG and MEM, respectively.

        * fold-const.c (fold_binary): Use code instead of t.

        * fold-const.c (optimize_minmax_comparison): Take decomposed
        arguments code, type, op0, and op1 instead of t.
        (fold_binary): Update a call to optimize_minmax_comparison.

        * fold-const.c (fold_range_test): Take decomposed arguments
        code, type, op0, and op1 instead of t.
        (fold_binary): Update a call to fold_range_test.

        * fold-const.c (fold_binary_op_with_conditional_arg): Take
        decomposed arguments code, type, op0, and op1 instead of t.
        (fold_binary): Update a call to fold_range_test.

2005-03-06  Kazu Hirata  <kazu@cs.umass.edu>

        * fold-const.c (fold_binary): Avoid directly using the original
        expression t as much as possible.

2005-03-05  Kazu Hirata  <kazu@cs.umass.edu>

        * c-semantics.c (build_stmt): Use TYPE_P instead of
        IS_NON_TYPE_CODE_CLASS.
        * tree.h (IS_NON_TYPE_CODE_CLASS): Remove.
        (NON_TYPE_CHECK): Use TYPE_P instead of
        IS_NON_TYPE_CODE_CLASS.

        * fold-const.c (fold): Remove handling of binary expressions.

2005-03-05  James A. Morrison  <phython@gcc.gnu.org>

        * doc/c-tree.texi: Wrap comments in @r{}.
        * doc/cpp.texi: Likewise.
        * doc/cppinternals.texi: Likewise.
        * doc/extend.texi: Likewise.
        * doc/md.texi: Likewise.
        * doc/objc.texi: Likewise.
        * doc/sourcebuild.texi: Likewise.
        * doc/tm.texi: Likewise.
        * doc/tree-ssa.texi

2005-03-05  Kazu Hirata  <kazu@cs.umass.edu>

        * predict.c (apply_return_prediction): Standardize PHI chain
        walking.
        * tree-ssa.c (ssa_redirect_edge): Likewise.

        * genattrtab.c, genemit.c, genoutput.c, genrecog.c,
        gensupport.c, jump.c, tree-phinodes.c, unwind-dw2-fde-glibc.c:
        Update copyright.

        * tree-phinodes.c (remove_phi_node): Drop the last argument.
        * tree-flow.h: Adjust the prototype for remove_phi_node.
        * lambda-code.c (perfect_nestify): Adjust a call to
        remove_phi_node.
        * tree-cfg.c
        (remove_phi_nodes_and_edges_for_unreachable_block): Likewise.
        * tree-outof-ssa.c (eliminate_virtual_phis, remove_ssa_form):
        Likewise.
        * tree-ssa-dce.c (remove_dead_phis): Likewise.
        * tree-ssa-loop-ivopts.c (remove_statement): Likewise.
        * tree-ssa-pre.c (remove_dead_inserted_code): Likewise.
        * tree-ssa.c (kill_redundant_phi_nodes): Likewise.

        * combine.c (simplify_and_const_int): Use gen_int_mode instead
        of GEN_INT (trunc_int_for_mode (...)).
        * loop-iv.c (iv_number_of_iterations): Likewise.
        * postreload.c (reload_cse_move2add): Likewise.
        * simplify-rtx.c (simplify_const_unary_operation,
        simplify_const_binary_operation): Likewise.
        * stor-layout.c (get_mode_bounds): Likewise.

        * fold-const.c (fold_binary): New.
        (fold): Call fold_binary on binary expressions.

2005-03-05  Richard Sandiford  <rsandifo@redhat.com>

        * doc/invoke.texi: Document new MIPS -msym32 and -mno-sym32 options.
        * config/mips/mips.h (MASK_SYM32, TARGET_SYM32): New macros.
        (TARGET_SWITCHES): Add -msym32 and -mno-sym32.
        (ABI_HAS_64BIT_SYMBOLS): Set to false if TARGET_SYM32.
        (ASM_SPEC): Pass down -msym32 and -mno-sym32.

2005-03-04  Devang Patel  <dpatel@apple.com>

        PR tree-optimization/18815
        * tree-if-conv.c (combine_blocks): Adjust loop header edges for
        loops with zero exit edges.

2005-03-04  Devang Patel  <dpatel@apple.com>

        * doc/invoke.texi: Remove reference to webpage that does not exist.

2005-03-04  John David Anglin  <dave.danglin@nrc-cnrc.gc.ca>
            Joseph S. Myers  <joseph@codesourcery.com>

        PR c++/19797
        * pa/elf.h, pa64-hpux.h, som.h (ASM_OUTPUT_EXTERNAL_REAL): Define.
        (ASM_OUTPUT_EXTERNAL): Call pa_hpux_asm_output_external.
        * pa-protos.h (pa_hpux_asm_output_external): Add prototype.
        * pa.c (get_plabel): Change argument to symbol_ref.  Call
        maybe_get_identifier instead of get_identifier.
        (pa_hpux_asm_output_external, pa_hpux_file_end): New functions.
        (struct deferred_plabel): Replace name field with symbol field.
        (TARGET_ASM_FILE_END): Define as pa_hpux_file_end if
        ASM_OUTPUT_EXTERNAL_REAL is defined.
        (output_global_address): Use output_addr_const for output of all
        symbol_refs.
        (output_deferred_plabels): Use symbol_ref instead of name for address
        output.
        * pa.h (SYMBOL_FLAG_REFERENCED, SYMBOL_REF_REFERENCED_P,
        ASM_OUTPUT_SYMBOL_REF): New macros.
        * som.h (ASM_OUTPUT_EXTERNAL_LIBCALL): Use assemble_name_raw.  Update
        comment.
        (ASM_WEAKEN_LABEL): Use targetm.asm_out.globalize_label to globalize
        label.

2005-03-05  Joseph S. Myers  <joseph@codesourcery.com>

        * config.gcc (hppa*64*-*-hpux11*): Use pa/pa-hpux1111.h for
        *-*-hpux11.[1-9]*, not just for *-*-hpux11.11.

2005-03-04  Jeff Law  <law@redhat.com>

        * basic-block.h (rediscover_loops_after_threading): Declare.
        * tree-ssa-dom.c: Include cfgloop.h.
        (tree_ssa_dominator_optimize): Discover loops and some basic
        properties.  Remove forwarder blocks recreated by loop header
        canonicalization.  Also mark backedges in the CFG.
        * tree-ssa-threadupdate.c: Include cfgloop.h
        (rediscover_loops_after_threading): Define.
        (struct local_info): New field, JUMP_THREADED.
        (prune_undesirable_thread_requests): New function.
        (redirect_edges): Clear EDGE_ABNORMAL.  If edges were threaded
        then record that fact for the callers of redirct_edges.
        (thread_block): If BB has incoming backedges, then call
        prune_undesirable_thraed_requests.    Note when we are
        going to have to rediscover loop information.  Return a
        boolean indicating if any jumps were threaded.
        (thread_through_all_blocks): Bubble up boolean indicating
        if any jumps were threaded.
        * Makefile.in (tree-ssa-dom.o): Depend on cfgloop.h
        (tree-ssa-threadupdate.o): Similarly.

2005-03-04  Kazu Hirata  <kazu@cs.umass.edu>

        * fold-const.c (fold_ternary): Unroll the "for" loop to
        extract operands.

2005-03-04  Andrew Haley  <aph@redhat.com>

        * unwind-dw2-fde-glibc.c (struct
        unw_eh_callback_data.check_cache): New field.
        (frame_hdr_cache): New.
        (_Unwind_IteratePhdrCallback): Add ext_dl_phdr_info.
        Cache frame header info.

2005-03-04  Richard Sandiford  <rsandifo@redhat.com>

        * rtl.h (copy_rtx_ptr_loc, print_rtx_ptr_loc, join_c_conditions)
        (print_c_condition): Declare.
        * read-rtl.c (ptr_loc): New structure.
        (ptr_locs, ptr_loc_obstack, joined_conditions)
        (joined_conditions_obstack): New variables.
        (leading_ptr_hash, leading_ptr_eq_p, set_rtx_ptr_loc)
        (get_rtx_ptr_loc, copy_rtx_ptr_loc, print_rtx_ptr_loc)
        (join_c_conditions, print_c_condition): New functions.
        (apply_macro_to_string): Associate the new string with the same
        source location as the old one.
        (add_condition_to_string): Use join_c_conditions.
        (read_string): Use set_rtx_ptr_loc to record a filename and line
        number for the string.
        (read_rtx): Initialize the new variables above.
        * genattrtab.c (write_test_expr, write_attr_value): Use
        print_c_condition.
        * genconditions.c (write_header): Don't define MAYBE_EVAL.  Move its
        comment above the GCC_VERSION check.
        (write_one_condition): Use print_rtx_ptr_loc and print_c_condition.
        Inline the definition of MAYBE_EVAL.
        * genemit.c (gen_expand, gen_split): Use print_rtx_ptr_loc.
        * genoutput.c (process_template): Likewise.
        * genpreds.c (write_predicate_subfunction): Likewise.
        (write_predicate_expr): Use print_c_condition.
        * genrecog.c (write_cond): Likewise.
        * gensupport.c (process_rtx): Use join_c_conditions to join the
        conditions of a define_insn_and_split.  Record a source location
        for the string after the "&&".
        (alter_test_for_insn): Use join_c_conditions.

2005-03-04  Andrew Pinski  <pinskia@physics.uc.edu>

        Revert for now:
        2005-03-03  James A. Morrison  <phython@gcc.gnu.org>
        PR tree-optimization/15784
        * fold-const.c (fold): Fold ~A + 1 to -A.  Fold -A - 1
        and -1 - A to ~A.

2005-03-04  Ben Elliston  <bje@au.ibm.com>

        * gcc.c (option_map): Add --coverage.
        (LINK_COMMAND_SPEC): Pass -lgcov for `coverage'.
        (cc1_options): Pass -fprofile-arcs -ftest-coverage for `coverage'.
        * config/darwin.h: Pass -lgcov for `coverage'.
        * doc/invoke.texi (Debugging Options): Document --coverage.

2005-03-04  Kazu Hirata  <kazu@cs.umass.edu>

        * gcse.c (bypass_block): Use find_edge wherever possible.

2005-03-03  Daniel Berlin <dberlin@dbrelin.org>

        Fix PR debug/20253

        * c-opts.c (c_common_parse_file): Call start_source_file
        and end_source_file at the approriate times.

        * dwarf2out.c (dwarf2out_finish): Don't auto-end
        the main file, it will be done for us now.

2005-03-04  Kazu Hirata  <kazu@cs.umass.edu>

        * fold-const.c (fold_ternary): New.
        (fold): Call fold_ternary on ternary expressions.  Remove
        handling of ternary expressions.

2005-03-03  James A. Morrison  <phython@gcc.gnu.org>

        PR tree-optimization/15784
        * fold-const.c (fold): Fold ~A + 1 to -A.  Fold -A - 1
        and -1 - A to ~A.

2005-03-03  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/predicates.md (branch_comparison_operator):
        Convert from C block to conditional format.

2005-03-03  Jan Hubicka  <jh@suse.cz>

        * tree-dfa.c (add_referenced_var): Don't walk initializer of external
        and non-constant public variables.

2005-03-03  Kazu Hirata  <kazu@cs.umass.edu>

        * tree-cfg.c (stmt_starts_bb_p): Clean up by replacing code
        with LABEL_EXPR.

        * cfgexpand.c (construct_exit_block): Use EDGE_PRED instead of
        EDGE_I.

        * tree-phinodes.c (remove_phi_node): Clean up by factoring out
        calls to release_ssa_name and release_phi_node.

        * fold-const.c (fold): Remove handling of unary expressions.

        * fold-const.c (fold_unary): Avoid directly using the original
        expression t as much as possible.

2005-03-03  Roger Sayle  <roger@eyesopen.com>
            Andrew Pinski  <pinskia@physics.uc.edu>

        * jump.c (redirect_exp_1): If nlabel is a NULL pointer create a
        RETURN rtx, and not a LABEL_REF containing a NULL pointer.

2005-03-03  Hans-Peter Nilsson  <hp@axis.com>

        Describe special registers SRP and MOF as allocatable registers.
        * config/cris/cris.c (cris_md_asm_clobbers): New function.
        (TARGET_MD_ASM_CLOBBERS): Define to cris_md_asm_clobbers.
        (cris_conditional_register_usage): Enable CRIS_MOF_REGNUM if
        TARGET_HAS_MUL_INSNS.
        (cris_print_operand) <case 'd'>: New case.
        <case REG>: Allow CRIS_MOF_REGNUM and CRIS_SRP_REGNUM.
        * config/cris/cris.h (CRIS_PC_REGNUM, CRIS_SRP_REGNUM): Don't
        define.
        (FIRST_PSEUDO_REGISTER, FIXED_REGISTERS, CALL_USED_REGISTERS)
        (REG_ALLOC_ORDER): Update for MOF.
        (enum reg_class): New members MOF_REGS, GENERAL_REGS and
        SPECIAL_REGS.
        (GENERAL_REGS): No longer a define of ALL_REGS.
        (REGNO_REG_CLASS, REG_CLASS_CONTENTS, REG_CLASS_NAMES)
        (PREFERRED_RELOAD_CLASS, REGISTER_NAMES, DBX_REGISTER_NUMBER):
        Adjust accordingly.
        (CRIS_SPECIAL_REGS_CONTENTS): New macro.
        (REG_CLASS_FROM_LETTER): Allocate 'h' and 'x'.
        (SECONDARY_RELOAD_CLASS): Define.
        (STACK_POINTER_REGNUM): Define as CRIS_SP_REGNUM.
        (FRAME_POINTER_REGNUM): Define as CRIS_FP_REGNUM.
        (ARG_POINTER_REGNUM): Define as CRIS_AP_REGNUM.
        (STATIC_CHAIN_REGNUM): Define as CRIS_STATIC_CHAIN_REGNUM.
        (REGISTER_MOVE_COST): Define.
        (PIC_OFFSET_TABLE_REGNUM): Define in terms of CRIS_GOT_REGNUM.
        * config/cris/cris.md (CRIS_GOT_REGNUM, CRIS_STATIC_CHAIN_REGNUM)
        (CRIS_FP_REGNUM, CRIS_SP_REGNUM, CRIS_SRP_REGNUM, CRIS_AP_REGNUM)
        (CRIS_MOF_REGNUM): New define_constants.
        ("*movsi_internal", "movhi", "movqi", "movsf"): Add alternatives for
        special registers.
        ("reload_inhi", "reload_outhi", "reload_inqi", "reload_outqi"):
        New patterns.
        ("umulhisi3", "umulqihi3", "mulsi3", "mulqihi3", "mulhisi3")
        ("mulsidi3", "umulsidi3", "smulsi3_highpart", "umulsi3_highpart"):
        Adjust for MOF being properly described as a register.
        (indir_to_reg_split): Name this split.  Conditionalize on the
        destination register being a general register.
        (movei): Conditionalize on on operands 0 and 1 having the same
        register class.

2005-03-03  Alan Modra  <amodra@bigpond.net.au>

        PR target/20277
        * config/rs6000/rs6000.c (rs6000_override_options): Don't allow
        -mcpu to override any other explicitly given flags.

2005-03-02  J"orn Rennecke <joern.rennecke@st.com>

        * recog.c (verify_changes, confirm_change_group): New functions,
        broken out of apply_change_group.
        (apply_change_group): Use them.
        * recog.h (verify_change, confirm_change_group): Declare.
        * rtl.h (redirect_jump_2): Declare.
        * jump.c (redirect_exp, invert_exp): Delete.
        (invert_exp_1): Take second parameter.  Return value.  Changed caller.
        (redirect_jump_2): New function, broken out of redirect_jump.
        (redirect_jump): Use redirect_jump_1 and redirect_jump_2.
        (invert_jump): Use invert_jump_1 and redirect_jump_2.
        * ifcvt.c (dead_or_predicable): Use redirect_jump_2.

2005-03-02  Geoffrey Keating  <geoffk@apple.com>

        * varasm.c (named_section): Use xstrdup rather than doing it by
        hand.

        * config/darwin8.h (LIB_SPEC): Switch -lmx and -lSystem.

2005-03-02  Devang Patel  <dpatel@apple.com>

        Undo PR tree-optimization/18815 fix.

2005-03-02  Devang Patel  <dpatel@apple.com>

        PR tree-optimization/18815
        * tree-if-conv.c (combine_blocks): Adjust loop header edges for
        loops with zero exit edges.

2005-03-02  Kazu Hirata  <kazu@cs.umass.edu>

        * cfg.c (connect_src, connect_dest, disconnect_src,
        disconnct_dest): New.
        (unchecked_make_edge, remove_edge, redirect_edge_succ,
        redirect_edge_pred): Use the new functions.

        * tree-ssa-dom.c (tree_ssa_dominator_optimize): Call
        free_dominance_info only when needed.

2005-03-02  David Edelsohn  <edelsohn@gnu.org>

        PR target/20276
        * config/rs6000/predicates.md (reg_or_cint64_operand): Fix typo.
        (reg_or_sub_cint64_operand): Same.

2005-03-02  Jeff Law  <law@redhat.com>

        * tree-ssa-dom.c (tree_ssa_dominator_optimize): Fix setting of
        CFG_ALTERED in the main DOM iteration loop.

2005-03-02  Mark Mitchell  <mark@codesourcery.com>

        PR c++/19916
        * varasm.c (initializer_constant_valid_p): Allow conversions
        between OFFSET_TYPEs.  Tidy.

2005-03-02  Hans-Peter Nilsson  <hp@axis.com>

        * config/cris/cris.md ("return"): Remove epilogue delay list
        sanity check.

2005-03-02  Daniel Jacobowitz  <dan@codesourcery.com>

        * config/arm/linux-elf.h (ARM_FUNCTION_PROFILER): Do not use (PLT)
        for Thumb.
        * config/arm/netbsd-elf.h (ARM_FUNCTION_PROFILER): Likewise.

2005-03-02  Kazu Hirata  <kazu@cs.umass.edu>

        * cfgloop.h, cfgloopanal.c, cfgloopmanip.c, conflict.c,
        loop-init.c, loop-unroll.c, print-tree.c, reg-notes.def,
        config/m68k/m68k.c, config/mips/mips.h,
        config/rs6000/rs6000-protos.h, doc/contrib.texi,
        doc/include/gcc-common.texi: Update copyright.

        PR middle-end/18029 and PR middle-end/18030
        * expr.c (optimize_bitfield_assignment_op): Add a special case
        to handle BIT_IOR_EXPR and BIT_XOR_EXPR.

        * fold-const.c (fold_unary): New.
        (fold): Call fold_unary on unary expressions.

2005-03-02  Richard Guenther  <rguenth@gcc.gnu.org>

        * cgraph.h (struct cgraph_edge): Add prev_caller and
        prev_callee fields.
        (cgraph_node_remove_callees): Export.
        * cgraph.c (cgraph_create_edge): Initialize prev_caller
        and prev_callee.
        (cgraph_edge_remove_callee): New function.
        (cgraph_edge_remove_caller): Likewise.
        (cgraph_remove_edge): Use.
        (cgraph_redirect_edge_callee): Likewise.
        (cgraph_node_remove_callees): New function.
        (cgraph_node_remove_callers): Likewise.
        (cgraph_remove_node): Use.
        * tree-optimize.c (tree_rest_of_compilation): Use
        cgraph_node_remove_callees instead of manual loop.
        * cgraphunit.c (cgraph_finalize_function): Likewise.
        (cgraph_expand_function): Likewise.
        (cgraph_remove_unreachable_nodes): Likewise.

2005-03-02  Joseph S. Myers  <joseph@codesourcery.com>

        PR c/8927
        * c-tree.h (undeclared_variable, build_external_ref): Add extra
        argument.
        * c-decl.c (undeclared_variable): Take location as argument.
        * c-typeck.c (build_external_ref): Likewise.
        * c-parser.c (c_parser_postfix_expression): Pass location of
        identifier to build_external_ref.

2005-03-01  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/rs6000.md (cceq splitter): Use operand mode, not
        CCEQ mode for branch_positive_comparison_operator test.
        * config/rs6000/predicates (branch_comparison_operator): Revert to
        define_predicate.
        (scc_comparison_operator): Same.
        (branch_positive_comparison_operator): Same.

2005-03-01  Hans-Peter Nilsson  <hp@axis.com>

        * config/cris/cris.c (cris_eligible_for_epilogue_delay)
        (cris_delay_slots_for_epilogue): Remove.
        (save_last): Move into cris_target_asm_function_epilogue.
        (cris_target_asm_function_epilogue): Remove tests for file being
        NULL.
        * config/cris/cris-protos.h (cris_eligible_for_epilogue_delay)
        (cris_delay_slots_for_epilogue): Remove prototypes.
        * config/cris/cris.h (DELAY_SLOTS_FOR_EPILOGUE)
        (ELIGIBLE_FOR_EPILOGUE_DELAY): Do not define.

2005-03-01  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/predicates.md (branch_comparison_operator): Change
        to define_special_predicate.
        (scc_comparison_operator): Same.
        (branch_positive_comparison_operator): Same.

2005-03-01  Daniel Berlin <dberlin@dberlin.org>

        * Makefile.in (tree-ssa-sink.o): New.
        (OBJS-common): Add tree-ssa-sink.o.
        * common.opt: Add -ftree-sink
        * opts.c (decode_options): flag_tree_sink is set at O1 or higher.
        * timevar.def (TV_TREE_SINK): new timevar.
        * tree-flow.h (is_hidden_global_store): Prototype.
        * tree-optimize.c (init_tree_optimization_passes): Add
        pass_sink_code.
        * tree-pass.h (pass_sink_code): New.
        * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Move checking
        for non-obvious global store store to is_hidden_global_store, and
        call that new function.
        * tree-ssa-sink.c: New file.
        * doc/invoke.texi: Document -fdump-tree-sink and -ftree-sink.
        * doc/passes.texi: Document forward store motion.
        * testsuite/gcc.dg/tree-ssa/ssa-sink-1.c: New test
        * testsuite/gcc.dg/tree-ssa/ssa-sink-2.c: New test
        * testsuite/gcc.dg/tree-ssa/ssa-sink-3.c: New test
        * testsuite/gcc.dg/tree-ssa/ssa-sink-4.c: New test

2005-03-01  Per Bothner  <per@bothner.com>

        * diagnostic.c (diagnostic_build_prefix): If USE_MAPPED_LOCATION
        and we have a non-zero column-number, add it to the message.
        Also factor out the diagnostic_kind_text.

2005-03-01  Zdenek Dvorak  <dvorakz@suse.cz>

        * cfgloop.c (flow_loop_entry_edges_find, flow_loop_exit_edges_find,
        flow_loop_pre_header_scan, flow_loop_pre_header_find,
        flow_loop_scan): Removed.
        (flow_loop_dump): Do not dump removed fields.
        (flow_loop_free): Do not free removed fields.
        (flow_loops_find): Flags argument removed.  Do not call flow_loop_scan.
        (loop_exit_edge_p): New function.
        * cfgloop.h (struct loop): Removed fields pre_header, pre_header_edges,
        num_pre_header_edges, entry_edges, num_entries, exit_edges,
        num_exits, exits_doms.
        (LOOP_TREE, LOOP_PRE_HEADER, LOOP_ENTRY_EDGES, LOOP_EXIT_EDGES,
        LOOP_EDGES, LOOP_ALL): Removed.
        (flow_loop_scan): Declaration removed.
        (loop_exit_edge_p, mark_loop_exit_edges): Declare.
        * cfgloopmanip.c (create_loop_notes): Do not pass flags to
        flow_loops_find.
        * ifcvt.c (mark_loop_exit_edges): Moved to cfgloopanal.c.
        (if_convert): Call flow_loops_find and flow_loops_free
        when calling mark_loop_exit_edges.
        * cfgloopanal.c (mark_loop_exit_edges): Moved from
        ifcvt.c.  Removed the flow_loops_find, flow_loops_free and
        free_dominance_info calls.
        * loop-init.c (flow_loops_find): Ditto.
        * passes.c (rest_of_handle_branch_prob): Ditto.
        * lambda-code.c (perfect_nestify): Do not call flow_loops_find.
        * loop-unroll.c (analyze_insns_in_loop): Do not use
        EDGE_LOOP_EXIT.
        * predict.c (predict_loops): Do not call flow_loop_scan.
        Use get_loop_exit_edges.
        (tree_estimate_probability): Do not pass flags to flow_loops_find.
        * tree-if-conv.c (bb_with_exit_edge_p): Take loop as argument.
        Do not use EDGE_LOOP_EXIT.
        (tree_if_convert_cond_expr, if_convertible_modify_expr_p): Pass loop
        to bb_with_exit_edge_p.
        (if_convertible_loop_p): Do not call flow_loop_scan.  Use
        loop->single_exit.  Do not use EDGE_LOOP_EXIT.  Pass loop
        to bb_with_exit_edge_p.
        (combine_blocks): Pass loop to bb_with_exit_edge_p.  Do not use
        EDGE_LOOP_EXIT.
        * tree-loop-linear.c (linear_transform_loops): Do not call
        flow_loop_scan.  Use loop->single_exit.
        * tree-vect-analyze.c (vect_analyze_operations): Use loop->single_exit.
        (vect_analyze_loop_form): Do not call flow_loop_scan.
        * tree-vect-transform.c (vect_update_ivs_after_vectorizer): Use
        loop->single_exit.
        (vect_do_peeling_for_loop_bound): Use loop_preheader_edge and
        loop->single_exit.
        * tree-vectorizer.c (slpeel_update_phis_for_duplicate_loop,
        slpeel_make_loop_iterate_ntimes, slpeel_can_duplicate_loop_p,
        slpeel_tree_duplicate_loop_to_edge_cfg,
        slpeel_verify_cfg_after_peeling, slpeel_tree_peel_loop_to_edge):
        Use loop_preheader_edge and loop->single_exit.  Do not call
        flow_loop_scan.

2005-03-01  Nick Clifton  <nickc@redhat.com>

        * config/arm/arm.c (thumb_find_work_register): Check all of the
        argument registers to see if they are free, and a couple of
        special cases where the last argument register but can be proved
        to be available during the function's prologue.
        (print_multi_reg, arm_compute_save_reg0_reg12_mask,
        output_return_instruction, emit_multi_reg_push, thumb_pushpop,
        thumb_unexpanded_epilogue): Use unsigned long as the type for the
        register bit-mask.
        (thumb_compute_save_reg_mask): Likewise.  Also use
        thumb_find_work_register() to ensure that there is agreement about
        which work register is going to be used in the prologue.
        (thumb_output_function_prologue): Use unsigned long as the type
        for the register bit-mask.  Also delay pushing the link register if
        other high registers are going to be pushed.
        (thumb_compute_save_reg_mask, emit_multi_reg_push,
        print_multi-reg, number_of_first_bit_set, thumb_pushpop): Remove
        redundant prototypes.

2005-02-28  John David Anglin  <dave.anglin#nrc-cnrc.gc.ca>

        PR target/19819
        * pa.h (GO_IF_LEGITIMATE_ADDRESS): Allow allow hard registers during
        and after reload in REG+REG indexed addresses without REG_POINTER
        set in the base and not set in the index.

2005-02-28  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/linux.h (MD_EXEC_PREFIX, MD_STARTFILE_PREFIX):
        Don't undefine here.
        (HANDLE_PRAGMA_PACK_PUSH_POP): Delete.
        (NO_IMPLICIT_EXTERN_C, CPLUSPLUS_CPP_SPEC): Likewise.
        (TARGET_OS_CPP_BUILTINS): Use LINUX_TARGET_OS_CPP_BUILTINS.
        (LIB_SPEC, LINK_EH_SPEC, STARTFILE_SPEC, ENDFILE_SPEC,
        LINK_GCC_C_SEQUENCE_SPEC, USE_LD_AS_NEEDED, TARGET_C99_FUNCTIONS):
        Delete.
        * config.gcc (sh*-*-linux*): Use config/linux.h.

2005-02-28  Dale Johannesen  <dalej@apple.com>
            Stan Shebs  <shebs@apple.com>

        Rewrite of 64-bit Darwin structure-by-value pass/return.
        * config/rs6000/rs6000.h (CUMULATIVE_ARGS): New fields
        intoffset, use_stack, named.
        * config/rs6000/rs6000.c (rs6000_darwin64_function_arg):  Remove.
        (rs6000_darwin64_record_arg_advance_flush):  New.
        (rs6000_darwin64_record_arg_advance_recurse): New.
        (rs6000_darwin64_record_arg_flush):  New.
        (rs6000_darwin64_record_arg_recurse):  New.
        (rs6000_darwin64_record_arg):  New.
        (rs6000_return_in_memory):  Remove AGGREGATE_TYPE_P check.
        (function_arg_boundary):  Handle 128-bit aligned structs.
        (function_arg_advance):  Rewrite darwin64 struct handling.
        (function_arg):  Call rs6000_darwin64_record_arg.
        (function_arg_partial_nregs):  Handle darwin64 structs.
        (rs6000_darwin64_function_value):  Remove.
        (rs6000_function_value):  Call rs6000_darwin64_record_arg.

2005-02-28  Roger Sayle  <roger@eyesopen.com>

        PR tree-optimization/20216
        * tree-chrec.c (tree_fold_factorial): Delete.
        (tree_fold_binomial): Change argument list to take a return type
        and change the type of K to unsigned int.  Rewrite to avoid explicit
        evaluation of factorials, and (recursively) calling fold to perform
        compile-time arithmetic.  Return NULL on (internal) overflow.
        (chrec_evaluate): Change type of K to an unsigned int.  Avoid
        calling tree_fold_binomial unnecessarily.  Return chrec_dont_know
        if any intermediate calculation overflows.
        (chrec_apply): Update call to chrec_evaluate.

2005-02-28  James E Wilson  <wilson@specifixinc.com>

        * config/mips/mips.h (NO_PROFILE_COUNTERS): Define.

2005-02-28  Joseph S. Myers  <joseph@codesourcery.com>

        PR c/20245
        * c-parser.c (c_parser_compound_statement): Return error_mark_node
        instead of NULL_TREE on error.

2005-02-28  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/rs6000.c (EASY_VECTOR_15): Remove.
        (EASY_VECTOR_15_ADD_SELF): Remove.
        (num_insns_constant_wide): Not static.
        (validate_condition_mode): Not static.
        (toc_relative_expr_p): Not static.
        (legitimate_indirect_address_p): Not static.
        (macho_lo_sum_memory_operand): Not static.
        (invalid_e500_subreg): Not static.
        (easy_vector_same): Not static.
        (easy_vector_splat_const): Not static.
        (RS6000_SYMBOL_REF_TLS_P): Remove.
        (any_operand): Delete.
        (any_parallel_operand): Delete.
        (count_register_operand): Delete.
        (altivec_register_operand): Delete.
        (xer_operand): Delete.
        (s8bit_cint_operand): Delete.
        (short_cint_operand): Delete.
        (u_short_cint_operand): Delete.
        (non_short_cint_operand): Delete.
        (exact_log2_cint_operand): Delete.
        (gpc_reg_operand): Delete.
        (cc_reg_operand): Delete.
        (cc_reg_not_cr0_operand): Delete.
        (reg_or_short_operand): Delete.
        (reg_or_neg_short_operand): Delete.
        (reg_or_aligned_short_operand): Delete.
        (reg_or_u_short_operand): Delete.
        (reg_or_cint_operand): Delete.
        (reg_or_arith_cint_operand): Delete.
        (reg_or_add_cint64_operand): Delete.
        (reg_or_sub_cint64_operand): Delete.
        (reg_or_logical_cint_operand): Delete.
        (got_operand): Delete.
        (got_no_const_operand): Delete.
        (easy_fp_constant): Delete.
        (easy_vector_constant): Delete.
        (easy_vector_constant_add_self): Delete.
        (zero_constant): Delete.
        (zero_fp_constant): Delete.
        (volatile_mem_operand): Delete.
        (offsettable_mem_operand): Delete.
        (mem_or_easy_const_operand): Delete.
        (add_operand): Delete.
        (non_add_cint_operand): Delete.
        (logical_operand): Delete.
        (non_logical_cint_operand): Delete.
        (mask_operand): Delete.
        (mask_operand_wrap): Delete.
        (mask64_operand): Delete.
        (mask64_2_operand): Delete.
        (and64_operand): Delete.
        (and64_2_operand): Delete.
        (and_operand): Delete.
        (reg_or_mem_operand): Delete.
        (lwa_operand): Delete.
        (symbol_ref_operand): Delete.
        (call_operand): Delete.
        (current_file_function_operand): Delete.
        (input_operand): Delete.
        (rs6000_nonimmediate_operand): Delete.
        (rs6000_tls_symbol_ref): Delete.
        (save_world_operation): Delete.
        (restore_world_operation): Delete.
        (load_multiple_operation): Delete.
        (store_multiple_operation): Delete.
        (vrsave_operation): Delete.
        (mfcr_operation): Delete.
        (mtcrf_operation): Delete.
        (lmw_operation): Delete.
        (stmw_operation): Delete.
        (branch_comparison_operator): Delete.
        (branch_positive_comparison_operator): Delete.
        (scc_comparison_operator): Delete.
        (trap_comparison_operator): Delete.
        (boolean_operator): Delete.
        (boolean_or_operator): Delete.
        (min_max_operator): Delete.
        * config/rs6000/rs6000.h (RS6000_SYMBOL_REF_TLS_P): Move to here.
        (EASY_VECTOR_15): Moved to here.
        (EASY_VECTOR_15_ADD_SELF): Move to here.
        (PREDICATE_CODES): Delete.
        * config/rs6000/rs6000-protos.h: Delete predicate functions.
        Declare functions no longer static.
        * config/rs6000/predicates.md: New.
        * config/rs6000/rs6000.md: Include predicates.md

2005-02-28  Kazu Hirata  <kazu@cs.umass.edu>

        * calls.c (emit_call_1): Don't use  REG_ALWAYS_RETURN.
        (emit_library_call_value_1): Don't use LCT_ALWAYS_RETURN and
        REG_ALWAYS_RETURN.
        * cfgrtl.c (need_fake_edge_p): Likewise.
        * combine.c (distribute_notes): Likewise.
        * emit-rtl.c (try_split): Likewise.
        * recog.c (peephole2_opimize): Likewise.
        * reg-notes.def (ALWAYS_RETURN): Remove.
        * rtl.h (LCT_ALWAYS_RETURN): Remove.
        * tree-cfg.c (need_fake_edge_p): Don't use ECF_ALWAYS_RETURN.
        * tree.h (ECF_ALWAYS_RETURN): Remove.

2005-02-28  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/19874
        * tree-ssa.c (tree_ssa_useless_type_conversion_1): A conversion
        between different machine modes is never a "useless" conversion.

2005-02-28  Geert Bosch  <bosch@gnat.com>

        PR ada/15977
        * doc/contrib.texi: List contributors for Ada front end

2005-02-28 Paolo Bonzini <bonzini@gnu.org>

        * simplify-rtx.c (simplify_unary_operation_1,
        simplify_const_unary_operation): New, extracted from...
        (simplify_unary_operation): ... this one.
        (simplify_binary_operation_1,
        simplify_const_binary_operation): New, extracted from...
        (simplify_binary_operation): ... this one.
        * rtl.h (simplify_const_unary_operation,
        simplify_const_binary_operation): Add prototypes.

2005-02-28  Julian Brown  <julian@codesourcery.com>

        * config/elfos.h: Revert my patch from 2005-02-25 since it broke
        building libjava and caused PR regression/20228.

2005-02-28  Paolo Bonzini  <bonzini@gnu.org>

        PR bootstrap/17383
        * Makefile.in (host_subdir): New.
        (build_objdir): New.  Replace ../$(build_subdir) with it throughout.
        * configure: Regenerate.

2005-02-27  Zack Weinberg  <zack@codesourcery.com>

        * config/alpha/t-osf4, config/arm/t-netbsd, config/ia64/t-hpux
        * config/pa/t-hpux-shlib (SHLIB_INSTALL): Create the
        installation directory first.

2005-02-28  Hans-Peter Nilsson  <hp@axis.com>

        PR target/19065.
        * config/cris/cris.h (EXTRA_CONSTRAINT_Q): Accept only (mem (reg)),
        not including (reg). Do not check for reg being CRIS_PC_REGNUM.
        (EXTRA_MEMORY_CONSTRAINT): Define as 'Q'.
        * config/cris/cris.md: Tweak comments referring to Q.
        ("cmpsi", "cmphi", "cmpqi", "*movsi_internal", "movhi")
        ("movstricthi", "movqi", "movstrictqi", "movsf", "addsi3")
        ("addhi3", "addqi3", "subsi3", "subhi3", "subqi3")
        ("*expanded_andsi", "*expanded_andhi", "*andhi_lowpart", "andqi3")
        ("*andqi_lowpart", "iorsi3", "iorhi3", "iorqi3", "uminsi3"):
        Insert spaces in constraints to align alternatives vertically for
        readability.
        ("cmphi"): Ditto.  Add separate alternative for operand 0 "r",
        operand 1: "M".

2005-02-27  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR rtl-optimization/17728
        * pa.md (mulsi3, divsi3, udivsi3, modsi3): Change predicate for
        operand 0 from general_operand to move_dest_operand.

2005-02-26  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa/elf.h, pa/som.h (ASM_OUTPUT_EXTERNAL): Use assemble_name_raw
        instead of trying to save and restore TREE_SYMBOL_REFERENCED.
        * pa/pa64-hpux.h (ASM_OUTPUT_TYPE_DIRECTIVE): Define.
        (ASM_OUTPUT_EXTERNAL): Don't save and restore TREE_SYMBOL_REFERENCED.

2005-02-26  Nathanael Nerode  <neroden@gcc.gnu.org>

        * configure.ac: Rename cc_for_cross_gnattools to host_cc_for_libada.
        * configure: Regenerate.
        * libada-mk.in: Remove CC; rename
        cc_for_cross_gnattools / cc_set_by_configure to host_cc_for_libada.

2005-02-26  Andrew Pinski  <pinskia@physics.uc.edu>

        PR tree-opt/20188
        * tree-ssa-alias.c (count_uses_and_derefs): If we have TREE_LIST
        for the lhs, also walk over the tree.  Likewise for rhs.

2005-02-26  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-ssa-dom.c (simple_iv_increment_p): New function.
        (simplify_rhs_and_lookup_avail_expr, eliminate_redundant_computations):
        Do not propagate value of iv before increment over the increment.

2005-02-25  Joseph S. Myers  <joseph@codesourcery.com>

        * c-parser.c: New file.
        * c-parse.in: Remove.
        * Makefile.in (c-parse.o-warn, c-parse.o, c-parse.c, c-parse.y):
        Remove.
        (c-parser.o): Add dependencies.
        (C_AND_OBJC_OBJC, C_OBJS, gcc.srcextra, GTFILES, distclean,
        maintainer-clean, TAGS): Update.
        * c-config-lang.in (gtfiles): Update.
        * gengtype-lex.l: Don't handle "@@".
        * stub-objc.c (objc_get_class_ivars, objc_build_throw_stmt,
        objc_build_synchronized, objc_begin_try_stmt,
        objc_begin_catch_clause, objc_finish_catch_clause,
        objc_build_finally_clause, objc_finish_try_stmt): New.
        * c-tree.h (struct c_declspecs): Add declspecs_seen_p and
        type_seen_p.
        (c_parse_init): Update comment.
        * c-decl.c (c_init_decl_processing): Update comment.
        (build_null_declspecs, declspecs_add_qual, declspecs_add_type,
        declspecs_add_scspec, declspecs_add_attrs): Initialize and update
        new c_declspecs members.

2005-02-25  Julian Brown  <julian@codesourcery.com>

        * config/elfos.h (MAKE_DECL_ONE_ONLY): Redefined to stop DECL_WEAK
        from being used for symbols with vague linkage when
        HAVE_GAS_COMDAT_GROUP is true.

2005-02-25  Mark Mitchell  <mark@codesourcery.com>

        * doc/include/gcc-common.texi (version-GCC): Update to 4.1.

2005-02-25  Steve Ellcey  <sje@cup.hp.com>

        PR target/19930
        * doc/tm.texi (LIBGCC2_LONG_DOUBLE_TYPE_SIZE): Document.
        (LIBGCC2_HAS_DF_MODE): New.
        (LIBGCC2_HAS_XF_MODE): New.
        (LIBGCC2_HAS_TF_MODE): New.
        * libgcc2.h (LIBGCC2_HAS_XF_MODE): New name for HAVE_XFMODE.
        (LIBGCC2_HAS_TF_MODE): New name for HAVE_TFMODE.
        * libgcc2.c (LIBGCC2_HAS_XF_MODE): New name for HAVE_XFMODE.
        (LIBGCC2_HAS_TF_MODE): New name for HAVE_TFMODE.
        (LIBGCC2_HAS_DF_MODE): New name for HAVE_DFMODE.
        * config/ia64/t-ia64 (LIB1ASMFUNCS): Remove __compat
        and add _fixtfdi, _fixunstfdi, _floatditf
        * lib1funcs.asm: Remove L__compat. Add L_fixtfdi,
        L_fixunstfdi, L_floatditf.
        * config/ia64/hpux.h (LIBGCC2_HAS_XF_MODE): Define.
        (LIBGCC2_HAS_TF_MODE): Define.

2005-02-25  Diego Novillo  <dnovillo@redhat.com>

        PR tree-optimization/20204
        * tree-into-ssa.c (insert_phi_nodes_for): Do not use
        REWRITE_THIS_STMT markers on PHI nodes.
        (rewrite_initialize_block): Likewise.

2005-02-25  Mark Mitchell  <mark@codesourcery.com>

        * version.c (version_string): Update to 4.1.

2005-02-25  Paolo Carlini  <pcarlini@suse.de>

        * doc/extend.texi (5.24 Declaring Attributes of Functions)<noreturn>:
        Clarify that the alternative way doesn't work in GNU C++.

2005-02-25  Zdenek Dvorak  <dvorakz@suse.cz>

        PR tree-optimization/19937
        * tree-ssa-loop-ivopts.c (rewrite_use_compare): Cast the final value
        to the type of the induction variable.

2005-02-25  Kaz Kojima  <kkojima@gcc.gnu.org>

        PR rtl-optimization/20117
        * bb-reorder.c (duplicate_computed_gotos): Don't duplicate
        the block including noncopyable insn.

2005-02-24  Kazu Hirata  <kazu@cs.umass.edu>

        * cse.c (delete_trivially_dead_insns): Speed up by minimizing
        calls to find_reg_note.

2005-02-24  Richard Henderson  <rth@redhat.com>

        PR tree-opt/20127
        * tree-sra.c (instantiate_element): Copy TREE_THIS_VOLATILE from
        the type.

2005-02-24  Fariborz Jahanian <fjahanian@apple.com>

        * config/rs6000/rs6000.c (rs6000_legitimize_reload_address): Check for
        vector types if to use base reg for misaligned non-word ld/std.

2005-02-24  Hans-Peter Nilsson  <hp@axis.com>

        PR target/14619
        * config/cris/cris.c (cris_target_asm_function_prologue): Create
        dwarf2 label manually and put it after, not before the prologue.

2005-02-24  David Edelsohn  <edelsohn@gnu.org>

        PR target/19019
        * reload.c (operands_match_p): Only increment register number for
        SCALAR_INT_MODE_P modes in multiple hard registers.

        * config/rs6000/rs6000.md (trunctfdf2): Remove register constraints.
        Fix formatting.

2005-02-24  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

        * ChangeLog.5: Fix log message typo(s).
        * ChangeLog.7: Likewise.
        * ChangeLog.tree-ssa: Likewise.
        * cfgexpand.c: Fix comment typo(s).
        * conflict.c: Likewise.
        * defaults.h: Likewise.
        * dwarf2out.c: Likewise.
        * gcse.c: Likewise.
        * ggc-page.c: Likewise.
        * tree-eh.c: Likewise.
        * tree-ssa-dom.c: Likewise.

2005-02-24  Jakub Jelinek  <jakub@redhat.com>

        PR target/19019
        * mklibgcc.in: Pass -DSHARED when compiling all *_s${objext} objects.
        * config/rs6000/darwin-ldouble.c: Only use the .symver directives
        if SHARED is defined.

        PR target/20196
        * config/rs6000/rs6000.md (LTU, GTU sCC splitters): Add earlyclobber,
        allow splitting only if operands 0 and 3 don't overlap.

2005-02-24  Richard Henderson  <rth@redhat.com>

        PR middle-end/19953
        * builtins.c (fold_builtin_complex_mul, fold_builtin_complex_div): New.
        (fold_builtin_1): Call them.
        * fold-const.c (fold_complex_mult_parts): Split out from ...
        (fold_complex_mult): ... here.  Fix typo in both imaginary case.
        (fold_complex_div_parts, fold_complex_div): New.
        (fold): Use them.
        * tree.h (fold_complex_mult_parts, fold_complex_div_parts): Declare.

2005-02-24  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * tree-ssa-ccp.c (visit_assignment): Verify that result of
        VIEW_CONVERT_EXPR is_gimple_min_invariant.

        * print-tree.c (print_node_brief): Print LABEL_DECL_UID.
        (print_node): Likewise.
        Print TYPE_SIZES_GIMPLIFIED.

2005-02-24  Hans-Peter Nilsson  <hp@axis.com>

        * config/cris/cris.md ("umulhisi3", "umulqihi3", "mulsi3")
        ("mulqihi3", "mulhisi3", "mulsidi3", "umulsidi3"): Mark input
        operands as commutative in constraints.

2005-02-24  Diego Novillo  <dnovillo@redhat.com>

        * tree-into-ssa.c: Re-organize internal functions.

2005-02-24  Richard Henderson  <rth@redhat.com>

        PR middle-end/18902
        * c-opts.c (c_common_post_options): Set flag_complex_method to 2
        for c99.
        * common.opt (fcx-limited-range): New.
        * opts.c (set_fast_math_flags): Set flag_cx_limited_range.
        * toplev.c (flag_complex_method): Initialize to 1.
        (process_options): Set flag_complex_method to 0 if
        flag_cx_limited_range.
        * doc/invoke.texi (-fcx-limited-range): New.

2005-02-24  Kazu Hirata  <kazu@cs.umass.edu>

        * cse.c (delete_trivially_dead_insns): Speed up by using
        NEXT_INSN and PREV_INSN directly instead of next_real_insn and
        prev_real_insn.

2005-02-24  Andrea Tarani  <andrea.tarani@gilbarco.com>

        * config/m68k/m68k.c (m68k_save_reg): Also save A5 for non-leaf
        functions when -mid-shared-library is being used.

2005-02-23  Daniel Jacobowitz  <dan@codesourcery.com>

        * doc/tm.texi (LINK_LIBGCC_SPECIAL): Remove.
        (LINK_LIBGCC_SPECIAL_1): Don't mention it.
        * gcc.c: Don't check for LINK_LIBGCC_SPECIAL.
        * system.h: Poison LINK_LIBGCC_SPECIAL.

2005-02-23  James E Wilson  <wilson@specifixinc.com>

        * gengtype.c (note_insn_name): Make 1 element larger.

2005-02-23  Roger Sayle  <roger@eyesopen.com>

        PR target/20018
        PR rtl-optimization/20097
        * simplify-rtx.c (simplify_relational_operation_1): Avoid creating
        BImode SUBREGs of SImode registers which confuse the ia64 backend.

2005-02-23  David Edelsohn  <edelsohn@gnu.org>

        * t-aix43 (SHLIB_INSTALL): Create directory for shared library.
        * t-aix52 (SHLIB_INSTALL): Same.

2005-02-23  Kazu Hirata  <kazu@cs.umass.edu>

        * genpreds.c: Update copyright.

2005-02-23  Michael Beach  <michaelb@ieee.org>

        PR target/20159
        * config/sparc/t-elf (startup files): Assemble with CPP.

2005-02-23  Paolo Bonzini  <bonzini@gnu.org>

        * genpreds.c (mark_mode_tests): Handle non-VOIDmode match_operands.
        (write_predicate_expr): Likewise.

2005-02-22  Diego Novillo  <dnovillo@redhat.com>

        PR tree-optimization/20100
        PR tree-optimization/20115
        * tree-optimize.c (init_tree_optimization_passes): Remove
        pass_maybe_create_global_var.
        * tree-pass.h (pass_maybe_create_global_var): Remove.
        * tree-ssa-alias.c (aliases_computed_p): Declare.
        (struct alias_info): Add field NUM_PURE_CONST_CALLS_FOUND.
        (count_calls_and_maybe_create_global_var): Remove.
        (pass_maybe_create_global_var): Remove.
        (init_alias_info): Do not declare aliases_computed_p.
        (maybe_create_global_var): If the function contains no
        call-clobbered variables and a mix of pure/const and regular
        function calls, create .GLOBAL_VAR.
        Mark all call-clobbered variables for renaming.
        (merge_pointed_to_info): Update comment.
        (add_pointed_to_var): Likewise.
        (is_escape_site): Likewise.
        Accept struct alias_info * instead of size_t *.
        Update all users.
        Update AI->NUM_CALLS_FOUND and AI->NUM_PURE_CONST_CALLS_FOUND
        as necessary.
        * tree-ssa-operands.c (get_call_expr_operands): If
        ALIASES_COMPUTED_P is false, do not add call-clobbering
        operands.
        * tree-ssa.c (init_tree_ssa): Set ALIASES_COMPUTED_P to false.
        (delete_tree_ssa): Likewise.

2005-02-22  James E Wilson  <wilson@specifixinc.com>

        * toplev.c (backend_init): Don't call init_adjust_machine_modes here.
        (do_compile): Do call it here.

2005-02-22  Kazu Hirata  <kazu@cs.umass.edu>

        PR rtl-optimization/20017.
        * passes.c (rest_of_handle_combine, rest_of_handle_cse,
        rest_of_handle_cse2, rest_of_handle_gcse): Call
        delete_dead_jumptables immediately before calling cleanup_cfg.

2005-02-22  Devang Patel  <dpatel@apple.com>

        PR 19952
        * tree-if-conv.c (process_phi_nodes): Use bsi_after_labels and skip
        all labels

2005-02-22  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/aix.h (WINT_TYPE): Define.

2005-02-22  Stan Shebs  <shebs@apple.com>

        * config/rs6000/rs6000.c (rs6000_override_options): Default to
        natural alignment for 64-bit Darwin.
        (rs6000_parse_alignment_option): Warn about uses of -malign-power
        on 64-bit Darwin.
        * doc/invoke.texi: Document this.

2005-02-22  DJ Delorie  <dj@redhat.com>

        * c-common.c (c_common_type_for_mode): Pass the mode's precision
        to make_[un]signed_type, not the mode itself.

2005-02-22  Kazu Hirata  <kazu@cs.umass.edu>

        * cfg.c (cached_make_edge): Call make_edge if edge cache is
        not available.  Use tail calls wherever possible.
        (make_edge): Call unchecked_make_edge to create an edge.

        * tree-outof-ssa.c (SSANORM_USE_COALESCE_LIST): Remove.
        (coalesce_ssa_name): Don't check for
        SSANORM_USE_COALESCE_LIST.
        (rewrite_out_of_ssa): Don't use SSANORM_USE_COALESCE_LIST.

2005-02-22  Diego Novillo  <dnovillo@redhat.com>

        * tree-into-ssa.c (rewrite_blocks): Move debug dumps from ...
        (rewrite_into_ssa): ... here.

2005-02-21  Alexandre Oliva  <aoliva@redhat.com>

        PR tree-optimization/19786
        * tree-ssa-alias.c (compute_flow_insensitive_aliasing): Add one
        tag to another's may-alias bitmap when adding to the other's list.

2005-02-21  DJ Delorie  <dj@redhat.com>

        * tree-ssa-loop-ivopts.c (computation_cost): Start register
        numbering at LAST_VIRTUAL_REGISTER+1 to avoid possibly using hard
        registers in unsupported ways.
        * expmed.c (init_expmed): Likewise.

2005-02-21  Stan Cox  <scox@redhat.com>

        * config/iq2000/iq2000.h (DWARF_FRAME_RETURN_COLUMN): Change to 31.

2005-02-21  Kazu Hirata  <kazu@cs.umass.edu>

        * tree-cfg.c (fold_cond_expr_cond): New.
        (make_edges): Call fold_cond_expr_cond.
        (find_taken_edge): Accept nothing but INTEGER_CST.
        (find_taken_edge_cond_expr): Reject INTEGER_CST other than 0
        and 1.
        (find_taken_edge_switch_expr): Remove a check for INTEGER_CST.

        * flow.c (delete_dead_jumptables): Speed up by scanning insns
        that do not belong to any basic block.

2005-02-21  Jeff Law  <law@redhat.com>

        * cfganal.c (find_unreachable_blocks): Manually CSE load of
        e->dest.

2005-02-21  Kazu Hirata  <kazu@cs.umass.edu>

        * tree-outof-ssa.c (SSANORM_REMOVE_ALL_PHIS): Remove.
        (SSANORM_COALESCE_PARTITIONS, SSANORM_USE_COALESCE_LIST):
        Adjust their definitions.
        (remove_ssa_form): Don't check for SSANORM_REMOVE_ALL_PHIS.
        (rewrite_out_of_ssa): Don't use SSANORM_REMOVE_ALL_PHIS.

        * c-objc-common.h, c-pretty-print.c, cgraphunit.c, except.c,
        genautomata.c, langhooks.c, langhooks.h, system.h,
        config/arm/lib1funcs.asm: Update copyright.

2005-02-21  Ulrich Weigand  <uweigand@de.ibm.com>

        * dbxout.c (dbxout_function_end): Emit Lscope label always.

2005-02-21  Richard Guenther  <rguenth@gcc.gnu.org>

        PR bootstrap/13770
        * doc/install.texi: Document --with-gc.

2005-02-21  Paolo Bonzini  <bonzini@gnu.org>

        * simplify-rtx.c (simplify_unary_operation): Add a missing
        "break" statement.

2005-02-21  Eric Botcazou  <ebotcazou@libertysurf.fr>

        PR tree-optimization/18663
        * tree-ssa-dom.c (extract_range_from_cond): Return 0
        if the type has variable bounds.

2005-02-20  Kazu Hirata  <kazu@cs.umass.edu>

        * gcse.c: Remove an obsolete comment.

        * cse.c (init_cse_reg_info): Use xmalloc instead of xrealloc.

2005-02-20  Hans-Peter Nilsson  <hp@axis.com>

        * doc/extend.texi (Function Attributes) <Attribute const>: The
        attribute "pure" is below this text, not above.

2005-02-20  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa.c (pa_assemble_integer, get_plabel): Small cleanups.
        (pa_asm_output_mi_thunk): Use asm_output_insn instead of fprintf.
        * som.h (ASM_OUTPUT_EXTERNAL_LIBCALL): Small cleanup.

2005-02-20  Zack Weinberg  <zack@codesourcery.com>

        PR 18785
        * langhooks.h (struct lang_hooks): Add to_target_charset.
        * langhooks.c (lhd_to_target_charset): New function.
        * langhooks-def.h: Declare lhd_to_target_charset.
        (LANG_HOOKS_TO_TARGET_CHARSET): New macro.
        (LANG_HOOKS_INITIALIZER): Update.
        * c-common.c (c_common_to_target_charset): New function.
        * c-common.h: Declare it.
        * c-objc-common.h (LANG_HOOKS_TO_TARGET_CHARSET): Set to
        c_common_to_target_charset.

        * defaults.c (TARGET_BELL, TARGET_BS, TARGET_CR, TARGET_DIGIT0)
        (TARGET_ESC, TARGET_FF, TARGET_NEWLINE, TARGET_TAB, TARGET_VT):
        Delete definitions.
        * system.h: Poison them.
        * doc/tm.texi: Don't discuss them.
        * builtins.c (fold_builtin_isdigit): Use lang_hooks.to_target_charset.
        * c-pretty-print.c (pp_c_integer_constant): Don't use pp_c_char.
        (pp_c_char): Do not attempt to generate letter escapes for
        newline, tab, etc.
        * config/arm/arm.c (output_ascii_pseudo_op): Likewise.
        * config/mips/mips.c (mips_output_ascii): Likewise.

2005-02-20  Dorit Naishlos  <dorit@il.ibm.com>

        PR tree-optimization/19951
        * tree-vect-analyze.c (vect_analyze_loop_form): Check if loop exit edge
        is abnormal.

2005-02-19  Steven Bosscher  <stevenb@suse.de>

        PR middle-end/19698
        * function.h (struct function): New field `max_loop_depth'.
        * cfgloop.c (establish_preds): Update maximum loop depth seen so far.
        (flow_loops_find): Reset the max loop depth count before finding loops.
        * flow.c (MAX_LIVENESS_ROUNDS): New constant.
        (update_life_info_in_dirty_blocks): Remove 2002-05-28 workaround.
        (calculate_global_regs_live): Make sure the loop will terminate
        when the initial sets are not empty.

2005-02-19  Zack Weinberg  <zack@codesourcery.com>

        * mklibgcc.in: If libgcc_eh.a would be empty, put a dummy
        object inside.
        * config/ia64/hpux.h: Don't define LIBGCC_SPEC.

2005-02-19  Richard Sandiford  <rsandifo@redhat.com>

        PR other/19525
        * doc/invoke.texi: Remove documentation of %M spec.
        * gcc.c: Likewise.
        (init_spec): Remove %M suffix from -lgcc_s.
        (do_spec_1): Remove 'M' case.
        * mklibgcc.in: Remove SHLIB_MULTILIB handling.  Expect SHLIB_LINK
        to put shared libraries in the multilib directory.  Remove the
        shlib_so_soname substitution variable.  Don't add a multilib encoding
        to shlib_base_name.  Set shlib_slibdir_qual to the full pathname
        reported by -print-multi-os-directory.  Pass @multilib_dir@ to
        SHLIB_INSTALL as well as SHLIB_LINK.
        * config/t-slibgcc-elf-ver (SHLIB_SONAME): Use @shlib_base_name@.
        (SHLIB_NAME): Delete.
        (SHLIB_DIR): New macro.
        (SHLIB_LINK): Put $(SHLIB_SONAME) and $(SHLIB_SOLINK) in $(SHLIB_DIR).
        (SHLIB_INSTALL): Adjust accordingly.
        * config/t-slibgcc-darwin: As for t-slibgcc-elf-ver.
        * config/t-slibgcc-sld: Likewise.
        * config/t-libunwind-elf (SHLIBUNWIND_NAME): Delete.
        (SHLIBUNWIND_SONAME): Use @shlib_base_name@.
        (SHLIBUNWIND_LINK): Put $(SHLIBUNWIND_SONAME) and $(SHLIB_SOLINK)
        in $(SHLIB_DIR).
        (SHLIBUNWIND_INSTALL): Adjust accordingly.
        * config/i386/t-nwld (SHLIB_SONAME): Delete.
        (SHLIB_LINK, SHLIB_INSTALL): Use SHLIB_NAME instead of SHLIB_SONAME.
        Use @shlib_base_name@ instead of @shlib_so_name@.
        * config/ia64/t-hpux (SHLIB_LINK): Put @shlib_base_name@.so.0
        and @shlib_base_name@.so in @multilib_dir@.
        (SHLIB_INSTALL): Adjust accordingly.  Add @shlib_slibdir_qual@
        to the install path.
        * config/mips/t-slibgcc-irix: As for t-slibgcc-elf-ver.
        (SHLIB_LINK): Remove previous workaround.
        * config/pa/t-hpux-shlib (SHLIB_DIR, SHLIB_SLIBDIR_QUAL): New macros.
        (SHLIB_LINK): Put $(SHLIB_SONAME) and $(SHLIB_NAME) in $(SHLIB_DIR).
        (SHLIB_INSTALL): Adjust accordingly.  Add $(SHLIB_SLIBDIR_QUAL) to
        the install path.
        * config/rs6000/t-aix43 (SHLIB_LINK): Put @shlib_base_name@.a in
        @multilib_dir@.  Use @multilib_dir@ to check for threading libraries.
        (SHLIB_INSTALL): Adjust accordingly.
        (SHLIB_LIBS): Use @multilib_dir@ to check for threading libraries.
        * config/rs6000/t-aix52: As for config/rs6000/t-aix43.
        * config/sh/t-linux (SHLIB_LINK, SHLIB_INSTALL): As for
        config/t-slibgcc-elf-ver.

2005-02-19  Zdenek Dvorak  <dvorakz@suse.cz>
            Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/19828
        * tree-ssa-loop-im.c: Add a TODO comment.
        (movement_possibility): Return MOVE_PRESERVE_EXECUTION for calls
        without side-effects.

2005-02-18  James A. Morrison  <phython@gcc.gnu.org>

        * tree-ssa-ccp.c (widen_bitfield): Pass type to build_int_cst and don't
        call fold_convert.

2005-02-18  James E. Wilson  <wilson@specifixinc.com>

        * doc/invoke.texi (IA-64 Options): Delete -mb-step.
        * config/ia64/ia64.c (last_group, group_idx): Delete variables.
        (errata_find_address_regs, errata_emit_nops, fixup_errata): Delete
        functions.
        (ia64_reorg): Delete fixup_errata call.
        * config/ia64/ia64.h (MASK_B_STEP, TARGET_B_STEP): Delete.
        (TARGET_SWITCHES): Delete -mb-step entry.

2005-02-19  Jakub Jelinek  <jakub@redhat.com>

        PR c/20043
        * c-typeck.c (composite_type): Handle quals in transparent unions.
        (type_lists_compatible_p): Likewise.

2005-02-18  Stan Shebs  <shebs@apple.com>

        * config/darwin.c (machopic_select_rtx_section): Don't put relocatable
        expressions in the .literal8 section.

2005-02-18  Geoffrey Keating  <geoffk@apple.com>

        * config/rs6000/darwin-tramp.asm: Remove stray 'APPLE LOCAL' marker.

2005-02-18  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (constant_boolean_node): Always create values of the
        specified type, don't bother calling truthvalue_conversion.

2005-02-18  Joseph S. Myers  <joseph@codesourcery.com>

        * except.c (output_function_exception_table): Call
        assemble_external_libcall (eh_personality_libfunc).

2005-02-18  Joseph S. Myers  <joseph@codesourcery.com>

        PR target/19886
        * config/ia64/ia64.h (struct machine_function): Add state_num.
        * config/ia64/ia64.c (process_epilogue,
        process_for_unwind_directive): Use new unwind state numbers each
        time rather than state 1.

2005-02-18  Ulrich Weigand  <uweigand@de.ibm.com>

        PR target/20054
        * config/s390/s390.md ("*llgt_sidi", "*llgt_sidi_split"): Move to
        before the "*llgt_didi" pattern.

2005-02-18  Jason Merrill  <jason@redhat.com>

        * gimplify.c (gimplify_modify_expr_rhs) [CALL_EXPR]: Revert again.

2005-02-18  Richard Earnshaw  <rearnsha@arm.com>

        * arm/lib1funcs.asm (FUNC_ALIAS): New macro.
        (div0): Use it in place of ARM_FUNC_ALIAS.
        (lshrdi3, ashrdi3, ashlrdi3): Likewise.

2005-02-18  Andrew Pinski  <pinskia@physics.uc.edu>

        PR middle-end/20030
        * fold-const.c (fold_indirect_ref_1): Use the correct index for zero
        access, the lower bound of the array type if it exists.

2005-02-18  Alexandre Oliva  <aoliva@redhat.com>

        PR c++/20008
        * stmt.c (expand_case): Don't assume cleanup_tree_cfg will remove