* c-typeck.c (common_type): Correct comment.

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

2004-05-29  Joseph S. Myers  <jsm@polyomino.org.uk>

        * c-typeck.c (common_type): Correct comment.

2004-05-29  Peter Barada  <peter@the-baradas.com>

        * config/m68k/m68k.c (CONST_METHOD): Add MVZ, MVS.
        * config/m68k/m68k.c (const_method): Likewise.
        * config/m68k/m68k.c (const_int_cost): Likewise.
        * config/m68k/m68k.c (const_int_cost): Likewise.
        * config/m68k/m68k.c (output_move_const_into_data_reg): Likewise.

2004-05-29  Peter Barada  <peter@the-baradas.com>

        * config/m68k/m68k.h (EXTRA_CONSTRAINT): add 'U' for register offset
        addressing.
        * config/m68k/m68k.md: Add 'U,U' alternative to ColdFire variants of
        movsi,movhi,movqi insn patterns.

2005-05-28  Andrew Pinski  <pinskia@physics.uc.edu>

        * c-semantics.c (emit_local_var): Remove code for DECL_INITIAL.

        PR target/15720
        * config/darwin.c (machopic_indirect_call_target): Copy
        the SYMBOL_REF_DECL from the original RTX for the new
        stub RTX.

2004-05-28  DJ Delorie  <dj@redhat.com>

        * stor-layout.c (place_field): Revert erroneous commit.

2004-05-28  Ziemowit Laski  <zlaski@apple.com>

        * config/rs6000/altivec.h (vec_ctf, vec_vcfsx, vec_vcfux, vec_cts,
        vec_ctu, vec_dss, vec_dst, vec_dstst, vec_dststt, vec_dstt, vec_ld,
        vec_ldl, vec_lvsl, vec_lvsr, vec_sld, vec_splat, vec_vspltw,
        vec_vsplth, vec_vspltb, vec_splat_s8, vec_splat_s16, vec_splat_s32,
        vec_splat_u8, vec_splat_u16, vec_splat_u32, vec_st, vec_stl,
        vec_ste): Remove type checks for integral parameters and literals
        from '..._args_eq' macros.

2004-05-28  Aldy Hernandez  <aldyh@redhat.com>

        * c-common.c (fname_as_string): Fix xcalloc to xmalloc.

2004-05-28  Aldy Hernandez  <aldyh@redhat.com>

        * testsuite/g++.dg/charset/function.cc: New.

        * testsuite/gcc.dg/charset/function.c: New.

        * c-decl.c (c_make_fname_decl): Free return value from
        fname_as_string.

        * cp/decl.c (cp_make_fname_decl): Free return value from
        fname_as_string.

        * c-common.c (fname_as_string): Translate if necessary.

2004-05-28  Geoffrey Keating  <geoffk@apple.com>

        * stringpool.c: Add comments to PCH saving/restoring routines.

2004-05-28  Andrew Pinski  <pinskia@physics.uc.edu>

        * c-common.c (c_estimate_num_insns_1): Kill.
        (c_estimate_num_insns): Kill.
        * c-common.h (c_estimate_num_insns): Kill.

        * gthr-posix.h: Check for _POSIX_PRIORITY_SCHEDULING
        when checking for _POSIX_THREAD_PRIORITY_SCHEDULING.
        Remove comment about not checking for
        _POSIX_PRIORITY_SCHEDULING.
        * gthr-posix.c: Likewise.

2004-05-28  Paolo Bonzini  <bonzini@gnu.org>
            Roger Sayle  <roger@eyesopen.com>

        PR rtl-optimization/15649
        Add LTGT_EXPR and improve pretty-printing of unordered
        comparisons.
        * c-common.c (c_common_truthvalue_conversion):
        Handle LTGT_EXPR.
        * c-typeck.c (build_binary_op): Likewise.
        * dojump.c (do_jump): Likewise.
        * expr.c (expand_expr_real_1, do_store_flag): Likewise.
        * predict.c (tree_predict_by_opcode): Likewise.
        * real.c (real_compare): Likewise.
        * tree-cfg.c (verify_expr): Likewise.
        * tree-inline.c (estimate_num_insns_1): Likewise.
        * tree-pretty-print.c (dump_generic_node): Likewise.
        Handle ORDERED_EXPR, UNORDERED_EXPR.
        (op_symbol): Print unordered comparisons differently
        than ordered ones.
        * tree.def (LTGT_EXPR): New '<' tree code.
        * doc/c-tree.texi (Expressions): Document floating-point
        comparison nodes.

        Fold comparisons between floating point values.
        * fold-const.c (enum comparison_code): New, from
        #define'd constants.  Define compcodes for unordered
        comparisons and for invalid transformations.
        (invert_tree_comparison): Add "honor_nans" parameter.
        (fold_truthop): Revamp to work on floating-point types too.
        (comparison_to_compcode): Support unordered comparisons.
        Use new enum comparison_code.
        (compcode_to_comparison): Likewise.
        (combine_compcodes): New function.
        (invert_truthvalue): Let invert_tree_comparison decide
        whether it is valid to fold the comparison.  Fold ORDERED
        and UNORDERED even if flag_unsafe_math_optimizations is off,
        and the remaining even if flag_unsafe_math_optimizations
        is off but we are under -fno-trapping-math.
        (fold_relational_const): Integer modes do not honor NaNs.
        
2004-05-28  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.c (arm_output_epilogue): Remove redundant code.

2004-05-28  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.c (thumb_force_lr_save): New function.
        (arm_get_frame_offsets, thumb_unexpanded_epilogue,
        thumb_output_function_prologue): Use it.
        (thumb_expand_prologue): Set lr_save_eliminated.

2004-05-28  Richard Sandiford  <rsandifo@redhat.com>

        * config/mips/mips.md (extendsidi2): Tie the source and destination
        of the register alternative.  Split it into nothing.

2004-05-28  Richard Sandiford  <rsandifo@redhat.com>

        * rtl.h (skip_consecutive_labels): Declare.
        * emit-rtl.c (skip_consecutive_labels): New function.
        * reorg.c (relax_delay_slots, dbr_schedule): Use it.
        * jump.c (follow_jumps): Say what null return values mean.

2004-05-28  Kaz Kojima  <kkojima@gcc.gnu.org>

        PR target/13250
        * config/sh/sh.md (rotlsi3): Use emit_move_insn.

2004-05-27  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/t-linux (SHLIB_MAPFILES): Use sh specific
        libgcc-std.ver.
        * config/sh/libgcc-std.ver: New file.

2004-05-27  Bryce McKinlay  <mckinlay@redhat.com>

        * except.c: Revert change of 2004-05-26.
        * config/i386/i386.md: Revert change of 2004-05-27.

2004-05-27  Bryce McKinlay  <mckinlay@redhat.com>

        * configure.ac: Remove --enable-tree-browser option.
        Define TREEBROWSER when ac_tree_checking is defined.
        * configure: Rebuilt.

2004-05-27  Olivier Hainque  <hainque@act-europe.fr>

        * expr.c (store_constructor): Restore sanity check on
        the size of the type before clearing.

2004-05-27  Jan Hubicka  <jh@suse.cz>

        * cfgbuild.c (control_flow_insn_p):  Notice noreturn call

2004-05-25  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.
        * simplify-rtx.c (simplify_binary_operation):
        Use nonzero_bits to simplify ANDs where we are
        turning off bits already known to be off in OP0.

2004-05-27  Alan Modra  <amodra@bigpond.net.au>

        PR target/14478
        * config/rs6000/rs6000.c (reg_or_neg_short_operand): Don't allow zero.

2004-05-27  Josef Zlomek  <zlomekj@suse.cz>

        PR middle-end/14084
        * emit-rtl.c (gen_rtx_REG_offset): Adjust the offset according
        to size of decl.

2004-05-26  Aldy Hernandez  <aldyh@redhat.com>

        PR/14924
        * config/rs6000/rs6000.c (spe_expand_stv_builtin): New.

2004-05-26  Roger Sayle  <roger@eyesopen.com>

        * tree.h: Fix comment typo.

2004-05-27  Steven Bosscher  <stevenb@suse.de>

        * gimplify.c (compare_case_labels): New function.
        (gimplify_switch_expr): Sort case labels, and make sure the
        last label in the label vector is the default case.
        * tree-cfg.c (group_case_labels): New function.
        (build_tree_cfg): Cleanup redundant labels and group case labels
        before creating edges.
        (cleanup_dead_labels): Handle GOTO_EXPRs.
        (find_case_label_for_value): Use a binary search to find the
        case label for the given value.
        * tree-gimple.c: Mention that labels are sorted, and that the
        last label must be the default.

2004-05-27  Jan Hubicka  <jh@suse.cz>

        * cfgcleanup.c (try_optimize_cfg): Do not merge across jumptables.

2004-05-27  Jan Hubicka  <jh@suse.cz>

        * i386.md (UNSPECV_EH_RETURN): Kill.
        (eh_return): Use jump_insn.
        (eh_return_si, eh_return_di): Change pattern to jump instruction.

2004-05-26  Jan Hubicka  <jh@suse.cz>

        * cfgcleanup.c (try_forward_edges):  Do not check loop structure when
        not loop optimizing.

2004-05-26  Jan Hubicka  <jh@suse.cz>

        * except.c (can_throw_internal):  Notice RESX instructions.

2004-05-26  Eric Botcazou  <ebotcazou@act-europe.fr>

        * varasm.c (output_constant) <INTEGER_TYPE>: Pass the minimum
        of the two sizes to assemble_integer.

2004-05-25  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.c (thumb_exit, thumb_unexpanded_epilogue): Remove
        pointless #ifdef.

2004-04-25  Paolo Bonzini  <bonzini@gnu.org>

        * Makefile.in (top_builddir): Define to .

2004-05-25  Alexandre Oliva  <aoliva@redhat.com>

        * configure.ac (gcc_cv_ld): Prefer in-tree ld over whatever the
        top-level detects, except when in-tree ld is being cross-built.
        (gcc_cv_as): Likewise for as.  Use AS_FOR_TARGET otherwise, and
        then AS only if target is host.
        * configure: Rebuilt.

2004-05-25  Vladimir Makarov  <vmakarov@redhat.com>

        * global.c (global_alloc): Call make_accurate_live_analysis.
        (record_one_conflict): Remove dead code.
        (mark_reg_clobber): Remove ATTRIBUTE_UNUSED for parameter data.
        (bb_info): New structure.
        (BB_INFO, BB_INFO_BY_INDEX): New macros.
        (allocate_bb_info, free_bb_info, mark_reg_change,
        calculate_local_reg_bb_info, set_up_bb_rts_numbers, rpost_cmp,
        modify_bb_reg_pav, calculate_reg_pav,
        make_accurate_live_analysis): New functions.
        
2004-05-25  Devang Patel  <dpatel@apple.com>

        * alias.c (init_alias_analysis): Use ggc_calloc instead of
        xrealloc.
        (end_alias_analysis): Use ggc_free instead fo free.
        
2004-05-25  Andrew Pinski  <pinskia@physics.uc.edu>

        PR target/15546
        * config/ia64/ia64.h (ASM_OUTPUT_FDESC): Mark the DECL
        as needed to be outputted.

2004-05-25  Jan Hubicka  <jh@suse.cz>

        * builtins.def (__builtin_expect):  Mark the function as const&nothrow.

2004-05-25  Ayal Zaks  <zaks@il.ibm.com>
        Mostafa Hagog  <mustafa@il.ibm.com>

        * Makefile.in (modulo-sched.o, ddg.o): New.
        * ddg.h, ddg.c, modulo-sched.c: New files.
        * cfglayout.c (duplicate_insn_chain): Remove "static" and push
        internals to "dupicate_insn".
        (duplicate_insn): New function.
        * cfglayout.h (duplicate_insn_chain, duplicate_insn): New
        declarations.
        * common.opt (fmodulo-sched): New flag.
        * df.c (df_bb_regno_last_use_find, df_bb_regno_first_def_find):
        Remove static and forward declaration.
        (df_find_def, df_reg_used, df_bb_regno_last_def_find): New
        functions.
        * df.h (df_bb_regno_last_use_find, df_bb_regno_first_def_find,
        df_bb_regno_last_def_find, df_find_def, df_reg_used): New
        declarations.
        * flags.h (flag_modulo_sched): New flag.
        * opts.c (common_handle_option): Handle modulo-sched flag.
        * params.def (max-sms-loop-number, sms-max-ii-factor,
        sms-dfa-history, sms-loop-average-count-threshold): New
        parameters.
        * params.h (MAX_SMS_LOOP_NUMBER, SMS_MAX_II_FACTOR,
        SMS_DFA_HISTORY, SMS_LOOP_AVERAGE_COUNT_THRESHOLD): New
        parameters.
        * passes.c ("sms", "sms-vcg"): New dumps.
        (rest_of_handle_sched): Call sms_schedule.
        * rtl.h (sms_schedule): New declaration.
        * timevar.def (TV_SMS): New.
        * toplev.c (flag_modulo_sched): Initialize.
        (f_options): Handle -fmodulo-sched option.
        * docs/invoke.texi: Document -fmodulo-sched & -dm options.
        * docs/passes.texi: Document new SMS pass.

2004-05-25  Paolo Bonzini  <bonzini@gnu.org>

        * Makefile.in (OBJS): Add rtlhooks.o.
        (rtlanal.o): Depend on function.h.
        (cse.o): Depend on rtlhooks-def.h.
        (combine.o): Depend on rtlhooks-def.h.
        (rtlhooks.o): New rule.
        * combine.c: Include rtlhooks-def.h.
        (nonzero_bits, cached_nonzero_bits, nonzero_bits1,
        num_sign_bit_copies, cached_num_sign_bit_copies,
        num_sign_bit_copies1): Move most of the code to rtlanal.c.
        (reg_nonzero_bits_for_combine,
        reg_num_sign_bit_copies_for_combine): New functions holding
        the remnants of the above.
        (combine_rtl_hooks): New.
        (combine_instructions): Set rtl_hooks instead of gen_lowpart.
        * cse.c: Include rtlhooks-def.h.
        (cse_rtl_hooks): New.
        (cse_main): Set rtl_hooks instead of gen_lowpart.
        * emit-rtl.c (gen_lowpart): Remove.
        (gen_lowpart_general): Move to rtlhooks.c.
        * rtl.h (nonzero_bits, num_sign_bit_copies,
        struct rtl_hooks, rtl_hooks, general_rtl_hooks): New.
        (gen_lowpart_general): Remove.
        (gen_lowpart): Temporarily redefine as a macro.
        * rtlanal.c: Include function.h.
        (nonzero_bits, cached_nonzero_bits, nonzero_bits1,
        num_sign_bit_copies, cached_num_sign_bit_copies,
        num_sign_bit_copies1): New, from combine.c.
        * rtlhooks.c: New file. 

2004-05-25  Svein E. Seldal  <Svein.Seldal@solidas.com>

        * config/avr/avr.h (LONG_LONG_TYPE_SIZE): Changed long long type
        to support 32-bit -mint8 mode.

        * doc/invoke.texi (-mint8): Added documentation for the -mint8
        option in the AVR architecture. 

2004-05-24  Mike Stump  <mrs@apple.com>

        * doc/install.texi: Document that dejagnu 1.4.4 is required.

2004-05-24  Joseph S. Myers  <jsm@polyomino.org.uk>

        * intl.h (open_quote, close_quote): New.
        * intl.c (open_quote, close_quote): New.
        (gcc_init_libintl): Set them.
        * pretty-print.c: Include "intl.h".
        (pp_base_format_text): Support 'q' format flag and %` and %'
        formats.  Use ' instead of ` in comments.
        * c-format.c (gcc_diag_flag_specs, gcc_cxxdiag_flag_specs,
        gcc_diag_char_table, gcc_cdiag_char_table, gcc_cxxdiag_char_table,
        foramt_types_orig): Describe these new formats.
        (decode_format_attr, check_function_format,
        check_format_info_main): Use these new formats.
        (status_warning): Use ATTRIBUTE_GCC_DIAG.
        * toplev.c (ATTRIBUTE_GCC_DIAG): Increase required GCC version to
        check these formats to 3.5.

2004-05-24  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>

        * Makefile.in (CPPLIBS): Renamed to CPPLIB.
        (BACKEND): Reflect this.
        (LIBDEPS): Move CPPLIB before LIBIBERTY.
        (LIBS): Likewise.

2004-05-24  Ulrich Weigand  <uweigand@de.ibm.com>

        PR tree-optimization/14197
        * builtins.c: Include "tree-gimple.h"
        (readonly_data_expr): Use get_base_address.  Make sure to call 
        decl_readonly_section only on trees it can handle.
        * tree-gimple.c (get_base_address): Accept STRING_CST and
        CONSTRUCTOR expressions.
        * Makefile.in: Update dependencies.

2004-05-23  Paolo Bonzini  <bonzini@gnu.org>

        Move libcpp to the toplevel.
        * Makefile.in: Remove references to libcpp files,
        use CPPLIBS instead of libcpp.a.  Define SYMTAB_H
        and change hashtable.h to that.
        * aclocal.m4 (gcc_AC_HEADER_STDBOOL,
        gcc_AC_HEADER_STRING, gcc_AC_C__BOOL): Remove.
        * configure.ac (gcc_AC_C__BOOL, HAVE_UCHAR): Remove tests.
        * configure: Regenerate.
        * config.in: Regenerate.
        * c-ppoutput.c: Include ../libcpp/internal.h instead of cpphash.h.
        * cppcharset.c: Removed.
        * cpperror.c: Removed.
        * cppexp.c: Removed.
        * cppfiles.c: Removed.
        * cpphash.c: Removed.
        * cpphash.h: Removed.
        * cppinit.c: Removed.
        * cpplex.c: Removed.
        * cpplib.c: Removed.
        * cpplib.h: Removed.
        * cppmacro.c: Removed.
        * cpppch.c: Removed.
        * cpptrad.c: Removed.
        * cppucnid.h: Removed.
        * cppucnid.pl: Removed.
        * cppucnid.tab: Removed.
        * hashtable.c: Removed.
        * hashtable.h: Removed.
        * line-map.c: Removed.
        * line-map.h: Removed.
        * mkdeps.c: Removed.
        * mkdeps.h: Removed.
        * stringpool.h: Include symtab.h instead of hashtable.h.
        * tree.h: Include symtab.h instead of hashtable.h.
        * system.h (O_NONBLOCK, O_NOCTTY): Do not define.

2004-05-23 Paolo Bonzini <bonzini@gnu.org>

        * gcc.c (struct prefix_list): Add forward declaration.
        (do_spec_path): New function, extracted from...
        (do_spec_1) <'D'>: ... here.  Drop support for
        SPACE_AFTER_L_OPTION.
        (do_spec_1) <'I'>: Use do_spec_path.
        (process_command): Do not store the 'include' suffix
        in include_prefixes.
        * system.h: Poison SPACE_AFTER_L_OPTION.

2002-05-23  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (non_lvalue): Explicitly list the tree codes that
        need to be wrapped by NON_LVALUE_EXPR, instead of those that don't.

2004-05-23  Joseph S. Myers  <jsm@polyomino.org.uk>

        * doc/gcc.texi, doc/gccint.texi, doc/include/gcc-common.texi:
        Update based on printed manual.  Enable setting of offsets for
        FSFPRINT and move it to gcc-common.texi.
        * doc/gcc.texi: Update FSF printing details.
        * doc/gccint.texi: Remove FSF printing details.

2004-05-23  Andrew Pinski  <pinskia@physics.uc.edu>

        * config/rs6000/t-rs6000: Remove the disabling -Werror.

2004-05-22  Roger Sayle  <roger@eyesopen.com>

        * builtins.c (expand_builtin_strstr, expand_builtin_strchr,
        expand_builtin_strrchr, expand_builtin_strpbrk,
        expand_builtin_mempcpy, expand_builtin_memcmp,
        expand_builtin_strcmp, expand_builtin_strncmp,
        expand_builtin_strcat, std_expand_builtin_va_start,
        std_expand_builtin_va_arg, expand_builtin_va_copy,
        expand_builtin_signbit, fold_builtin_cabs,
        fold_builtin_logarithm, fold_builtin_mempcpy,
        fold_builtin_signbit, fold_builtin_isascii,
        fold_builtin_toascii, fold_builtin_isdigit,
        fold_builtin_1, build_function_call_expr,
        simplify_builtin_strchr, simplify_builtin_strrchr,
        simplify_builtin_strpbrk, simplify_builtin_strncpy,
        simplify_builtin_memcmp, simplify_builtin_strcmp,
        simplify_builtin_strncmp, simplify_builtin_strncat,
        simplify_builtin_strspn, simplify_builtin_strcspn,
        simplify_builtin_fputs, simplify_builtin_sprintf): Replace calls
        to build with calls to build2, build3 or omit_one_operand.

2004-05-22  Richard Sandiford  <rsandifo@redhat.com>

        * config/mips/mips.c (mips_file_start): Emit a .gcc_compiled_longXX
        section when generating EABI code.

2004-05-22  Andrew Pinski  <pinskia@physics.uc.edu>

        PR 15546
        * config/i386/i386.c (output_pic_addr_const <case SYMBOL_REF>):
        Call mark_decl_referenced on the SYMBOL_REF_DECL.

2004-05-22  Andrew Pinski  <pinskia@physics.uc.edu>

        * c-common.c (c_common_truthvalue_conversion): Handle
        UNEQ_EXPR, UNLE_EXPR, UNGE_EXPR, UNLT_EXPR, UNGT_EXPR,
        ORDERED_EXPR, and UNORDERED_EXPR as comparison operators,
        i.e. set the type to truthvalue_type_node and return.

2004-05-22  Zack Weinberg  <zack@codesourcery.com>

       * tree.h (struct tree_decl): Add possibly_inlined bit.
        (DECL_POSSIBLY_INLINED): New accessor macro.
        * cgraph.h: Remove declaration of cgraph_inline_hash.
        * cgraph.c: Remove definition of cgraph_inline_hash.
        (hash_node): Revert to hashing DECL_UID.
        (eq_node): Take two pointers to cgraph_node structures.
        Compare DECL_UIDs.
        (cgraph_remove_node): Pass the node directly to htab_find_slot.
        (cgraph_varpool_hash_node): Rename hash_varpool_node;
        hash on DECL_UID.
        (eq_cgraph_varpool_node): Rename eq_varpool_node; take two
        pointers to cgraph_varpool_node structures; compare DECL_UIDs.
        (cgraph_node): Allocate a temporary node on the stack, fill in
        its DECL field, and pass that to htab_find_slot.
        (cgraph_varpool_node): Likewise.
        (cgraph_function_possibly_inlined_p): If global info is ready,
        return the DECL_POSSIBLY_INLINED bit.
        * cgraphunit.c (cgraph_mark_inline_edge): Set DECL_POSSIBLY_INLINED
        instead of mucking with cgraph_inline_hash.

2004-05-22  Joseph S. Myers  <jsm@polyomino.org.uk>

        * doc/contrib.texi: Add g77 contributors.

2004-05-22  Richard Sandiford  <rsandifo@redhat.com>

        * calls.c (initialize_argument_information): Forbid sibcalls if a
        callee-copied argument is stored in the current function's frame.

2004-05-22  Eric Christopher  <echristo@redhat.com>

        * fix-header.c (read_scan_file): Update for add_path change.

2004-05-22  Ben Elliston  <bje@au.ibm.com>

        * c.opt (Wmissing-include-dirs): New.
        * c-opts.c (c_common_handle_option): Pass true for user_supplied_p
        to add_path () for -I, but false for OPT_idirafter, OPT_iquote and
        OPT_isystem. Handle case OPT_Wmissing_include_dirs.
        * c-incpath.h (add_path): Add fourth (bool) argument.
        * c-incpath.c (add_env_var_paths): Pass false to add_path ().
        (add_standard_paths): Likewise.
        (remove_duplicates) [REASON_NOENT]: Warn if -Wmissing-include-dirs
        is used and the directory was user-supplied via -I.
        (add_path): Set p->user_supplied_p.  Remove duplicated code by
        using add_cpp_dir_path ().
        * cpplib.h (struct cpp_options): Add warn_missing_include_dirs.
        (struct cpp_dir): Add user_supplied_p.
        * doc/invoke.texi (Warning Options): Document new option.

2004-05-21  Ulrich Weigand  <uweigand@de.ibm.com>

        * fold-const.c (fold_read_from_constant_string): Convert result to
        requested type.

2004-05-21  Richard Henderson  <rth@redhat.com>

        * gimplify.c (mostly_copy_tree_r): Don't attempt to copy decls.
        (copy_if_shared_r): Don't copy decls, types, constants, BINDs.
        Don't mark VA_ARG_EXPRs volatile here.
        (gimplify_modify_expr): Unshare TYPE_SIZE_UNIT.

2004-05-21  Richard Henderson  <rth@redhat.com>

        * Makefile.in (tree-dump.o): Depend on tree-iterator.h.
        * tree-dump.c (dequeue_and_dump): Dump STATEMENT_LISTs.

2004-05-21  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (fold, fold_relational_hi_lo,
        nondestructive_fold_binary_to_constant,
        fold_read_from_constant_string): Use fold_convert instead of convert.
        * builtins.c (simplify_builtin, simplify_builtin_strstr,
        simplify_builtin_strchr, simplify_builtin_strrchr,
        simplify_builtin_strpbrk): Use fold_convert instead of convert.

2004-05-21  Diego Novillo  <dnovillo@redhat.com>

        * tree-flow-inline.h (num_immediate_uses): Don't abort if DF
        is NULL.

2004-05-21  Jakub Jelinek  <jakub@redhat.com>

        * config/sparc/linux64.h (OPTION_DEFAULT_SPECS): If SPARC_BI_ARCH,
        override sparc.h definition.

2004-05-20  Roger Sayle  <roger@eyesopen.com>

        * tree.c (array_type_nelts, save_expr, substitute_in_expr,
        get_unwidened, get_narrower): Replace build with build2.
        * fold-const.c (negate_expr, associate_trees, size_binop,
        fold_convert, eval_subst, omit_one_operand, invert_truthvalue,
        pedantic_omit_one_operand, distribute_bit_expr,
        make_bit_field_ref, optimize_bit_field_compare,
        decode_field_reference, range_binop, make_range,
        build_range_check, fold_range_test, fold_truthop,
        optimize_minmax_comparison, extract_muldiv_1,
        fold_binary_op_with_conditional_arg, fold_mathfn_compare,
        fold_inf_compare, fold_single_bit_test, fold,
        fold_relational_hi_lo, nondestructive_fold_binary_to_constant):
        Likewise replace build with either build2 or build3.

2004-05-20  Ian Lance Taylor  <ian@wasabisystems.com>

        * system.h: Poison NO_RECURSIVE_FUNCTION_CSE.
        * calls.c (prepare_call_address): Don't test
        NO_RECURSIVE_FUNCTION_CSE.
        * config/arc/arc.h (NO_RECURSIVE_FUNCTION_CSE): Don't define.
        * config/arm/arm.h (NO_RECURSIVE_FUNCTION_CSE): Likewise.
        * config/avr/avr.h (NO_RECURSIVE_FUNCTION_CSE): Likewise.
        * config/frv/frv.h (NO_RECURSIVE_FUNCTION_CSE): Likewise.
        * config/i386/i386.h (NO_RECURSIVE_FUNCTION_CSE): Likewise.
        * config/ip2k/ip2k.h (NO_RECURSIVE_FUNCTION_CSE): Likewise.
        * config/iq2000/iq2000.h (NO_RECURSIVE_FUNCTION_CSE): Likewise.
        * config/m32r/m32r.h (NO_RECURSIVE_FUNCTION_CSE): Likewise.
        * config/m68k/m68k.h (NO_RECURSIVE_FUNCTION_CSE): Likewise.
        * config/mcore/mcore.h (NO_RECURSIVE_FUNCTION_CSE): Likewise.
        * config/mips/mips.h (NO_RECURSIVE_FUNCTION_CSE): Likewise.
        * config/stormy16/stormy16.h (NO_RECURSIVE_FUNCTION_CSE):
        Likewise.
        * config/xtensa/xtensa.h (NO_RECURSIVE_FUNCTION_CSE): Likewise.
        * config/sh/sh.h: Remove NO_RECURSIVE_FUNCTION_CSE comment.
        * doc/tm.texi (Costs): Remove documentation for
        NO_RECURSIVE_FUNCTION_CSE.

2004-05-20  Paul Brook  <paul@codesourcery.com>

        * unwind-dw2-fde.c (get_cie_encoding): Handle dwarf3 CIE format.
        * unwind-dw2.c (extract_cie_info): Ditto.
        (_Unwind_FrameState): Change retaddr_column to word type.

2004-05-20  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/3074
        * fold-const.c (strip_compound_expr): Delete function.
        (count_cond): Delete function.
        (fold_binary_op_with_conditional_arg): Only perform transformations
        "a + (b?c:d) -> b ? a+c : a+d" and "(b?c:d) + a -> b ? c+a : d+a"
        when a is constant.  This greatly simplifies this routine.

        * tree.c (saved_expr_p): Delete function.
        * tree.h (saved_expr_p): Delete function prototype.

2004-05-20  Andrew Pinski  <pinskia@physics.uc.edu>

        * common.opt (ftree-loop-optimize): Remove.

2004-05-20  Daniel Jacobowitz  <dan@debian.org>

        * Makefile.in (AR_FOR_TARGET, RANLIB_FOR_TARGET)
        (NM_FOR_TARGET): Use := and $(shell).
        (mainversion): Remove unused variable.

2004-05-20  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * reorg.c (delete_from_delay_slot): If we have a barrier after the
        sequence containing the insn to be deleted, always reemit it.

2004-05-20  Richard Henderson  <rth@redhat.com>

        PR 15454
        * tree-nested.c (get_chain_decl): Create a PARM_DECL by hand.
        * function.c (expand_function_start): Expand static_chain_decl by hand.
        * gimplify.c (create_tmp_var_name): Export.
        * tree-gimple.h (create_tmp_var_name): Declare.

2004-05-20  Andrew Pinski  <pinskia@physics.uc.edu>

        * rs6000.c (print_operand) <case 'z'>: Call
        mark_decl_referenced before assemble_name.

2004-05-20  Zack Weinberg  <zack@codesourcery.com>

        * cgraph.c (hash_node, eq_node, cgraph_node, cgraph_remove_node)
        (cgraph_varpool_hash_node, eq_cgraph_varpool_node)
        (cgraph_varpool_node): Hash on the pointer to the decl, not
        the DECL_UID.  Fixes 64-bit bootstrap failure.

2004-05-20  Richard Earnshaw <rearnsha@arm.com>

        * arm.md (ite_ne_zeroextractsi, ite_ne_zeroextractsi_shifted): Ensure
        we don't earlyclobber operands used in the second insn.

2004-05-20  Steven Bosscher  <stevenb@suse.de>

        * tree-mudflap.c: Formatting fixes.

2004-05-20  J"orn Rennecke <joern.rennecke@superh.com>

        * Makefile.in (GTFILES): Add $(srcdir)/reload.h.
        * gengtype.c (open_base_files): Include reload.h in ifiles.
        * reload.h (reg_equiv_memory_loc_varray): Declare.
        * reload1.c (reg_equiv_memory_loc_varray): New variable.
        (init_reload): Initialize it.
        (reload): Instead of freeing reg_equiv_memory_loc, 'grow'
        reg_equiv_memory_loc_varray to size 0.
        * ra.c (reg_alloc): Allocate reg_equiv_memory_loc by
        growing reg_equiv_memory_loc_varray to the desired size.
        * passes.c (rest_of_handle_old_regalloc): Likewise.
        * reload.c: Amend comment on calling init_reload.

2004-05-20  Nick Clifton  <nickc@redhat.com>

        * config/c4x/c4x.h (INITIALIZE_TRAMPOLINE): Replace 'tramp'
        with 'TRAMP' in the body of the macro definition.

2004-05-19  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/15383
        * config/ia64/ia64.c (ia64_expand_compare): Don't check
        TARGET_HPUX for TFmode compare. Abort if op0 is in TFmode and
        cmptf_libfunc isn't set.
        (ia64_init_libfuncs): Rename TFmode libfuncs using the HPUX
        conventions.
        (ia64_sysv4_init_libfuncs): New.

        * config/ia64/sysv4.h (TARGET_INIT_LIBFUNCS): New. Defined as
        ia64_sysv4_init_libfuncs.

2004-05-20  Falk Hueffner  <falk@debian.org>

        PR other/15526
        * libgcc2.c (__mulvsi3): Fix overflow test.

2004-05-19  Andrew Pinski  <pinskia@physics.uc.edu>

        PR c/14171
        * reg-stack.c (nan): Rename to ...
        (not_a_num): Here.
        (reg_to_stack): Rename nan to not_a_num.
        (subst_stack_regs_pat): Likewise.
        (convert_regs_entry): Likewise.
        (convert_regs_1): Likewise.

        * tree-cfg.c (find_case_label_for_value): Replace call to
        simple_cst_equal with tree_int_cst_equal.

2004-05-19  Jeff Law <law@redhat.com>

        * tree-into-ssa.c (prepare_operand_for_rename): New argument is_use.
        If the operand is for a use, then strip away the SSA_NAME, do not
        strip away the SSA_NAME for a set.  Never call release_ssa_name.
        (mark_def_sites): Appropriately pass additional argument to
        prepare_operand_for_rename.  If a VDEF_RESULT is not an SSA_NAME,
        then set the VDEF_RESULT to the VDEF_OP.
        (set_def_block): Strip away any SSA_NAME to get to the real
        underlying variable.

        * tree-ssa-phiopt.c (value_replacement): Handle the case where
        the desired edge out of COND_BLOCK reaches OTHER_BLOCK rather than
        BB directly.

2004-05-19  Zdenek Dvorak  <rakdver@atrey.karlin.mff.cuni.cz>

        PR c++/15463
        * loop-iv.c (iv_number_of_iterations):  Use trunc_int_for_mode on
        result of inverse.

        PR rtl-optimization/15274
        * loop-iv.c (determine_max_iter, shorten_into_mode,
        iv_number_of_iterations): Handle constants correctly.
        * rtl.h (get_mode_bounds): Declaration changed.
        * stor-layout.c (get_mode_bounds): Return a constant suitable for
        the target mode.

        PR rtl-optimization/14692
        * loop-unswitch.c (may_unswitch_on): Try folding the result.
        (unswitch_single_loop): Work correctly when may_unswitch_on
        returns a folded constant.

        * loop-iv.c (implies_p): Handle A < B ==> A + 1 <= B.
        * simplify-rtx.c (simplify_const_relational_operation): Optimize
        comparisons with mode bounds.

        * function.c (struct temp_slot): Add new field prev.
        (free_after_compilation, init_temp_slots): Free new fields.
        (cut_slot_from_list, insert_slot_to_list,
        temp_slots_at_level, max_slot_level, move_slot_to_level,
        make_slot_available): New functions.
        (assign_stack_temp_for_type, combine_temp_slots,
        find_temp_slot_from_address, preserve_temp_slots,
        preserve_rtl_expr_result, free_temp_slots,
        free_temps_for_rtl_expr, pop_temp_slots): Work with
        the new structure of lists.
        (mark_all_temps_used): Removed.
        * function.h (struct function): Field x_temp_slots
        replaced by x_used_temp_slots and x_avail_temp_slots.
        (temp_slots): Replaced by ...
        (used_temp_slots, avail_temp_slots): New.
        * tree.h (mark_all_temps_used): Declaration removed.

        * loop-iv.c (mark_single_set, get_biv_step_1, iv_analyze,
        simplify_using_assignment): Take the expression out of
        the expr_list wrapper.

        * loop-iv.c (iv_number_of_iterations): Improve clasification of
        infinite loops.

2004-05-19  Roger Sayle  <roger@eyesopen.com>

        * doc/tm.texi (TARGET_RTX_COSTS): Document that instruction
        costs should be based on code size when optimizing for size.

2004-05-19  Paolo Bonzini  <bonzini@gnu.org>

        * fold-const.c: Remove non-printable character 160.

2004-05-19  Nick Clifton  <nickc@redhat.com>

        * doc/invoke.texi (ARM Options): Fix typo.
        Remove descrption of -mshort-load-bytes and
        -mno-short-load-bytes.

        * config/ip2k/ip2k.c (ip2k_composite_xexp_not_uses_reg_p): Add
        missing parenthesis.
        * config/ip2k/ip2k.c (ip2k_unary_operator): Likewise.
        * config/ip2k/ip2k.c (ip2k_binary_operator): Likewise.

2004-05-19  Steven Bosscher  <stevenb@suse.de>

        * expr.c (store_constructor): Build loop start and end by hand
        instead of via loop functions from stmt.c.
        (expand_expr_real_1): Abort if we see an EXIT_EXPR or a LOOP_EXPR.
        Remove the code to expand them.

        * stmt.c (loop_stack): Remove this and everything related.
        (struct nesting, enum nesting_desc): Update.
        (expand_fixup): Likewise.
        (expand_loop_start, expand_start_loop_continue_elsewhere,
        expand_start_null_loop, expand_loop_continue_here, expand_end_loop,
        expand_end_null_loop, expand_continue_loop, expand_exit_loop,
        expand_exit_loop_if_false, expand_exit_loop_top_cond,
        expand_exit_something): Remove.
        * tree.h: Remove prototypes.

2004-05-18  Mike Stump  <mrs@apple.com>
            Devang Patel  <dpatel@apple.com>

        * doc/tm.texi (TARGET_ASM_EMIT_UNWIND_LABEL): Add argument to indicate
        if this label is for eh.
        * config/darwin-protos.h (darwin_emit_unwind_label): Likewise.
        * config/darwin.c (darwin_emit_unwind_label): Likewise.
        * dwarf2out.c (output_call_frame_info): Likewise.
        * output.h (default_emit_unwind_label): Likewise.
        * target.h (unwind_label): Likewise.
        * varasm.c (default_emit_unwind_label): Likewise.

        * config/darwin.h (DWARF2_DEBUGGING_INFO, PREFERRED_DEBUGGING_TYPE,
        DEBUG_FRAME_SECTION, DEBUG_INFO_SECTION, DEBUG_ABBREV_SECTION,
        DEBUG_ARANGES_SECTION, DEBUG_MACINFO_SECTION, DEBUG_LINE_SECTION,
        DEBUG_LOC_SECTION, DEBUG_PUBNAMES_SECTION, DEBUG_STR_SECTION,
        DEBUG_RANGES_SECTION): Define.

2004-05-18  Zack Weinberg  <zack@codesourcery.com>

        * cgraph.c (hash_node, eq_node, cgraph_node, cgraph_remove_node)
        (cgraph_varpool_hash_node, eq_cgraph_varpool_node)
        (cgraph_varpool_node):
        Use DECL_UID for the key, not DECL_ASSEMBLER_NAME.
        (cgraph_function_possibly_inlined_p): Use the decl itself for
        the key, not DECL_ASSEMBLER_NAME.
        (change_decl_assembler_name): No need to muck with the hash tables.
        (cgraph_node_for_identifier, cgraph_varpool_node_for_identifier):
        Delete.
        * cgraphunit.c (cgraph_mark_inline_edge): Use the decl itself
        for the key, not DECL_ASSEMBLER_NAME.
        * cgraph.h: Remove prototypes of deleted functions.
        * varasm.c (mark_referenced): Just set TREE_SYMBOL_REFERENCED.
        (mark_decl_referenced): New function.
        * tree.h: Prototype mark_decl_referenced.
        * final.c (output_addr_const) <case SYMBOL_REF>: Call
        mark_decl_referenced before assemble_name.
        * c-decl.c (finish_decl): Use mark_decl_referenced.

2004-05-18  Andrew Pinski  <pinskia@physics.uc.edu>
            Jeff Law <law@redhat.com>

        * tree-ssa-phiopt.c (abs_replacement): New function.
        (empty_block_p): New function extracted from...
        (candidate_bb_for_phi_optimization): Break out empty block test.
        (conditional_replacement): Use empty_block_p.
        (value_replacement): Similarly.

        * Makefile.in (tree-ssa-phiopt.o): Depends on flags.h.
        * tree-ssa-phiopt.c: Include flags.h.
        (conditional_replacement): Remove argument names from prototype.
        Minor formatting and comment fixes.
        (tree_ssa_phiopt): If conditional_replacement returns false, then
        call value_replacement.
        (value_replacement): New function.

2004-05-18  Jeff Law  <law@redhat.com>

        * tree-ssa-phiopt.c (replace_phi_with_stmt): New function extracted
        from conditional_replacement.
        (candidate_bb_for_phi_optimization): Similarly.
        (conditional_replacement): Use replace_phi_with_stmt and
        candidate_bb_for_phi_optimization.

        * tree-ssa-phiopt.c: Fix various formatting issues.

2004-05-18  Steven Bosscher  <stevenb@suse.de>

        * config/s390/s390.c (s390_expand_movstr, s390_expand_clrstr,
        s390_expand_cmpmem): Do not use expand_start_loop and
        expand_end_loop, instead build the loop manually.

2004-05-18  Alan Modra  <amodra@bigpond.net.au>

        * config/rs6000/rs6000.md (ctrsi_internal3): Delete.
        (ctrsi_internal4, ctrdi_internal3, ctrdi_internal4): Delete.

2004-05-17  Jeff Law  <law@redhat.com>

        * toplev.h (flag_delete_null_pointer_checks): Move from here to...
        * flags.h (flag_delete_null_pointer_checks): Here.
        * tree-flow.h (cprop_into_successor_phis): Add argument to prototype.
        * tree-phinodes.c (resize_phi_node): Initialize PHI_ARG_NONZERO.
        (add_phi_arg, remove_phi_arg_num): Similarly.
        * tree-ssa-copy.c (cprop_into_successor_phis): Propagate nonzero
        property into PHI nodes.
        * tree-ssa-dom.c: Remove redundant inclusion of flags.h.
        (record_equivalences_from_phis): If all PHI arguments are known to be
        nonzero, then the result must be nonzero as well.
        (cprop_into_phis): Pass nonzero_vars bitmap to cprop_into_successor_phis.
        (record_equivalences_from_stmt): Check flag_delete_null_pointer_checks
        appropriately.  Walk the USE-DEF chains and propagate nonzero property
        as appropriate.
        * tree.h (PHI_ARG_NONZERO): Define.
        (phi_arg_d): Add nonzero flag.

2004-05-17  Zack Weinberg  <zack@codesourcery.com>

        * f: Entire directory removed

        * c-common.h (CTI_G77_INTEGER_TYPE, CTI_G77_UINTEGER_TYPE)
        (CTI_G77_LONGINT_TYPE, CTI_G77_ULONGINT_TYPE)
        (g77_integer_type_node, g77_uinteger_type_node)
        (g77_longint_type_node, or g77_ulongint_type_node): Delete.
        * c-common.c (c_common_nodes_and_builtins): Do not initialize
        the above set of variables.

        * config/i386/uwin.h: No need to define WIN32_UWIN_TARGET.
        * doc/invoke.texi, doc/standards.texi: Remove cross-references
        to g77 manual.

2004-05-17  Steven Bosscher  <stevenb@suse.de>

        PR tree-optimization/15438
        * tree-ssa-operands.c (get_expr_operands): Do not treat malloc
        attributed functions as pure or const.

2004-05-17  Frank Ch. Eigler  <fche@redhat.com>

        * tree-mudflap.c (mx_register_decls): Tolerate decl trees resulting
        from source code with errors.

2004-05-17  Ranjit Mathew  <rmathew@hotmail.com>

        Enable tree browser for all front ends.
        * Makefile.in (cc1): Moved @TREEBROWSER@ from here...
        (BACKEND): ...to here.

2004-05-17  Jan Hubicka  <jh@suse.cz>

        * i386.c (construct_container): Do not produce BLKmode registers.
        (classify_argument): Properly compute alignment of complex types.

2004-05-17  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/15084
        * config/i386/i386.md (*movsi_insv_1_rex64): Changed to DImode
        and renamed to movdi_insv_1_rex64.
        (insv): Support SImode for 32bit and DImode for 64bit.

2004-05-17  Richard Sandiford  <rsandifo@redhat.com>

        * config/mips/mips.h (MASK_DEBUG_G, TARGET_DEBUG_G_MODE): Delete.
        (TARGET_SWITCHES): Remove debugg.
        * config/mips/mips.md (adddi3, ashldi3, ashrdi3, lshrdi3): Only handle
        TARGET_64BIT.
        (subdi3): Replace the define_expand with a define_insn, the latter
        renamed from subdi3_internal_3.
        (negdi2): Likewise negdi2_internal_2.
        (adddi3_internal_[12], subdi3_internal, ashldi3_internal{,2,3})
        (ashrdi3_internal{,2,3}, lshrdi3_internal{,2,3}): Remove patterns
        and associated define_splits.
        (adddi3_internal): Renamed from adddi3_internal_3.
        (ashldi3_internal): Likewise ashldi3_internal4.
        (ashrdi3_internal): Likewise ashrdi3_internal4.
        (lshrdi3_internal): Likewise lshrdi3_internal4.

2004-05-17  Richard Sandiford  <rsandifo@redhat.com>

        * optabs.c (expand_unop): Try implementing negation using subtraction
        from zero.

2004-05-16  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa.md:  Fix typo from last change.  Remove DFmode move to and from
        SAR register.

2004-05-16  Richard Earnshaw  <rearnsha@arm.com>

        PR target/10982
        * arm.md (ne_zeroextractsi): Convert to insn-and-split.
        (ne_zeroextractsi_shifted): New pattern.
        (ite_ne_zeroextractsi): New pattern.
        (ite_ne_zeroextractsi_shifted): New pattern.

2004-05-15  Steven Bosscher  <stevenb@suse.de>

        * c-gimplify.c (c_genericize):
        Replace calls via (*lang_hooks.foo) with lang_hooks.foo.
        * c-parse.in <expr_no_commas>: Likewise.
        <if_prefix>: Likewise.
        <select_or_iter_stmt>: Likewise.
        * expr.c (expand_var, expand_expr_real_1): Likewise.
        * expr.h (expand_expr): Make it a static inline function.
        Move prototype for expand_expr_real up before this.
        * fold-const.c (fold_relational_hi_lo, fold_relational_const):
        Likewise.
        * gimplify.c (gimple_boolify, gimplify_addr_expr,
        gimplify_asm_expr, gimplify_expr): Likewise.
        * tree-cfg.c (dump_tree_cfg, dump_cfg_stats, tree_cfg2vcg,
        dump_function_to_file): Likewise.
        * tree-dfa.c (dump_immediate_uses, dump_dfa_stats): Likewise.
        * tree-inline.c (remap_block, save_body, walk_tree): Likewise.
        * tree-into-ssa.c (dump_tree_ssa): Likewise.
        * tree-mudflap.c (mf_varname_tree, mf_file_function_line_tree):
        Likewise.
        * tree-optimize.c (execute_one_pass): Likewise.
        * tree-pretty-print.c (dump_generic_bb_buff): Likewise.
        * tree-ssa-alias.c (dump_alias_stats, dump_alias_info): Likewise.

        * objc/objc-act.c (objc_build_try_enter_fragment,
        objc_build_try_epilogue, objc_build_catch_stmt,
        objc_build_finally_prologue): Replace calls via (*lang_hooks.foo)
        with lang_hooks.foo ().

2004-05-15  Roger Sayle  <roger@eyesopen.com>

        * builtins.c (simplify_builtin_strcpy): Avoid use of chainon, so
        that simplify_builtin doesn't destructively modify its argument.

2004-05-15  Richard Earnshaw  <reanrsha@arm.com>

        * arm/lib1funcs.asm (_lshrdi3, _ashrdi3, _ashldi3): Add ASM
        implementations for ARM and Thumb.
        * arm/t-arm-elf (LIB1ASMFUNCS): Use them.

2004-05-15  Thomas Quinot  <quinot@act-europe.fr>

        * prefix.c (update_path): Replace PREFIX with KEY only
        when it matches a full directory name in PATH.

2004-05-15  Richard Earnshaw  <reanrsha@arm.com>

        * arm.h (TARGET_APCS_32): Delete.
        (TARGET_MMU_TRAPS): Delete.
        (TARGET_CPU_CPP_BUILTINS): Unconditionally define __APCS_32__.  Never
        define __APCS_26__.
        (CPP_SPEC): Remove checking of -mapcs-{26,32}.
        (ARM_FLAG_APCS_32, ARM_FLAG_MMU_TRAPS): Delete.
        (TARGET_SWITCHES): Remove alignment_traps and apcs-{26,32} switches.
        (prog_mode_type): Delete.
        (PROMOTE_MODE): Always promote unsigned for HImode.
        (SECONDARY_INPUT_RELOAD_CLASS): Simplify.
        (MASK_RETURN_ADDR): Simplify.
        * arm.c (arm_prgmode): Delete.
        (arm_override_options, arm_gen_rotated_half_load): Simplify.
        (print_multi_reg, output_return_instruction): Simplify.
        (arm_output_epilogue, arm_final_prescan_insn): Simplify.
        (arm_return_addr): Simplify.
        * arm.md (prog_mode): Delete.
        (conds): Simplify.
        (zero_extendhisi2, extendhisi2, movhi, movhi_bytes): Simplify.
        (rotated_loadsi, movhi_insn_littleend, movhi_insn_bigend): Delete.
        (loadhi_si_bigend, loadhi_preinc, loadhi_shiftpreinc): Delete.
        (loadhi_shiftpredec): Delete.
        (peephole for post-increment on HImode load): Delete.
        * arm/crtn.asm: (FUNC_END): Simplify.
        * arm/lib1funcs.asm: Remove APCS-26 return macros.
        * arm/aof.h, arm/coff.h arm/elf.h arm/linux-elf.h arm/netbsd-elf.h
        * arm/netbsd.h arm/pe.h arm/semi.h arm/semiaof.h arm/unknown-elf.h
        * arm/vxworks.h arm/wince-pe.h: Tidy TARGET_DEFAULTS and
        MULTILIB_DEFAULTS as required.
        * arm/t-arm-elf arm/t-linux arm/t-pe arm/t-semi arm/t-wince-pe
        * arm/t-xscale-coff arm/t-xscale-elf arm/uclinux-elf: Tidy MULTILIB
        variables as required.
        * doc/invoke.texi (ARM Options): Remove obsolete flags.

2004-05-15  Alan Modra  <amodra@bigpond.net.au>

        * config/rs6000/rs6000.c (rs6000_va_arg <ABI_V4>): Don't use
        UNITS_PER_WORD to calculate gpr size.  Re-instate code to set reg
        count to 8 to handle n_reg > 2.

2004-05-15  Joseph S. Myers  <jsm@polyomino.org.uk>

        * doc/extend.texi: Update WG14 URL.

2004-05-15  Steven Bosscher  <stevenb@suse.de>

        * basic-block.h (life_analysis, delete_noop_moves):
        Update prototypes.
        * bt-load.c (branch_target_load_optimize): Don't take the
        insns stream as an argument.  Update the life_analysis calls.
        * combine.c (combine_instructions): Update delete_noop_moves
        calls.
        * flow.c (notice_stack_pointer_modification): Don't take the
        insns stream as an argument.  Work on the flow graph.
        (life_analysis): Likewise.
        (delete_noop_moves): Likewise.
        * passes.c (rest_of_handle_stack_regs): Update reg_to_stack call.
        (rest_of_handle_life): Update life_analysis call.
        (rest_of_compilation): Likewise, and also update
        branch_target_load_optimize call.
        * ra.c (reg_alloc): Update life_analysis call.
        * reg-stack.c (reg_to_stack): Likewise.  Also, don't take
        the insns stream as an argument.
        * regrename.c (copyprop_hardreg_forward): Update delete_noop_moves
        call.
        * rtl.c (branch_target_load_optimize, reg_to_stack): Update
        prototypes.
        * value-profile.c (branch_prob): Update life_analysis call.
        * web.c (web_main): Work on the CFG, not on the insns stream.

        * config/ip2k/ip2k.c (ip2k_reorg): Update life_analysis calls.
        * config/m68hc11/m68hc11.c (m68hc11_reorg): Likewise.
        * config/sh/sh.c (sh_output_mi_thunk): Likewise.

2004-05-15  Joseph S. Myers  <jsm@polyomino.org.uk>

        PR c/15444
        * c-format.c (avoid_dollar_number): New function.
        (check_format_info_main): Call avoid_dollar_number when operand
        numbers might occur but has_operand_number == 0.

2004-05-14  Richard Earnshaw  <rearnsha@arm.com>

        * arm.md (all peephole2 patterns): Use predicates that validate
        register classes as appropriate.

2004-05-14  Steven Bosscher  <stevenb@suse.de>

        PR opt/14472
        * tree-tailcall.c (process_assignment): Use STRIP_NOPS to
        ignore type conversions that do not inhibit tail calling.
        (find_tail_calls): Likewise.

2004-05-14  Jeff Law  <law@redhat.com>

        * tree-ssa-dom.c (redirect_edges_and_update_ssa_graph): Don't even
        bother marking bypassed virtuals for out-of-ssa.  Instead merge
        bypassed virtuals into vars_to_rename just before into-ssa pass.

        * tree-ssa-dom.c (simplify_rhs_and_lookup_avail_expr): Reorganize
        so that it picks up more opportunities to eliminate ABS expressions
        or turn them into negations.

2004-05-14  Steven Bosscher  <stevenb@suse.de>

        * passes.c (rest_of_handle_null_pointer): Remove.
        (rest_of_handle_cse): Don't call rest_of_handle_null_pointer.
        (rest_of_compilation): Likewise.
        * rtl.h (delete_null_pointer_checks): Remove prototype.
        * gcse.c (rd_kill, rd_gen, reaching_defs, rd_out, ae_in, ae_out):
        Remove declarations.
        (get_bitmap_width, alloc_rd_mem, free_rd_mem, handle_rd_kill_set,
        compute_kill_rd, compute_rd, alloc_avail_expr_mem,
        free_avail_expr_mem, compute_ae_gen, expr_killed_p, compute_ae_kill,
        expr_reaches_here_p, computing_insn, def_reaches_here_p,
        can_disregard_other_sets, handle_avail_expr, classic_gcse,
        one_classic_gcse_pass, invalidate_nonnull_info,
        delete_null_pointer_checks_1, delete_null_pointer_checks,
        expr_reached_here_p_work): Remove.
        (gcse_main): Do not perform classic GCSE when optimizing for size.
        (alloc_pre_mem, free_pre_mem): Don't touch ae_in and ae_out, they
        are never used.

2004-05-14  Andrew Pinski  <pinskia@physics.uc.edu>

        PR optimization/14466
        * tree-complex.c (make_temp): Remove.
        (gimplify_val): Replace make_temp with make_rename_temp
        and add NULL as the second argument.
        (expand_complex_div_wide): Likewise.
        * tree-dfa.c (make_rename_temp): New function.
        * tree-flow.h (make_rename_temp): Declare.
        * tree-sra.c (make_temp): Remove.
        (lookup_scalar): Replace make_temp with make_rename_temp.
        (create_scalar_copies): Likewise.
        * tree-ssa-phiopt.c (conditional_replacement): When we
        get non gimple create a temporary variable to hold the
        casted expression.

2004-05-14  Paul Brook  <paul@codesourcery.com>

        * stor-layout.c (update_alignment_for_field): Use
        targetm.align_anon_bitfield.
        * target-def.h (TARGET_ALIGN_ANON_BITFIELD): Define.
        (TARGET_INITIALIZER): Use it.
        * target.h (struct gcc_target): Add align_anon_bitfield.
        * config/arm/arm.c (arm_align_anon_bitfield):  New function.
        (TARGET_ALIGN_ANON_BITFIELD): Define.
        * doc/tm.texi: Document TARGET_ALIGN_ANON_BITFIELD.

2004-05-13  Zack Weinberg  <zack@codesourcery.com>

        * tree.def (documentation): Remove mention of class 'b'.
        (BLOCK): Now in class 'x'.
        * c-common.c (verify_tree): Remove case 'b'.
        * c-typeck.c (same_translation_unit_p): Change 'b' to 'x'.
        * calls.c (calls_function_1): Control cannot get past the switch
        when exp is a BLOCK.
        * print-tree.c (print_node): Move code for class 'b' to the class
        'c'/'x' switch, as case BLOCK.
        * tree.c (tree_size, make_node_stat, tree_node_structure): Likewise.
        (unsafe_for_reeval, substitute_placeholder_in_expr)
        (stabilize_reference_1): Remove case 'b'.
        * tree-browser.c (browse_tree): Change all tests for TREE_CODE_CLASS
        of something being 'b' to tests for TREE_CODE of something being
        BLOCK.
        * tree-ssa-operands.c (get_expr_operands): Likewise.

2004-05-13  Diego Novillo  <dnovillo@redhat.com>

        * tree-gimple.c: Rename from tree-simple.c.
        * tree-gimple.h: Rename from tree-simple.h.
        * c-gimplify.c: Rename from c-simplify.c
        * Makefile.in, c-decl.c, gimple-low.c, gimplify.c,
        langhooks.c, tree-alias-ander.c, tree-alias-common.c,
        tree-complex.c, tree-dfa.c, tree-flow.h, tree-inline.c,
        tree-into-ssa.c, tree-iterator.c, tree-mudflap.c,
        tree-nested.c, tree-nomudflap.c, tree-outof-ssa.c, tree-sra.c,
        tree-ssa-alias.c, tree-ssa-ccp.c, tree-ssa-copyrename.c,
        tree-ssa-dce.c, tree-ssa-live.c, tree-ssa-pre.c, tree-ssa.c:
        Update.

2004-05-14  Ranjit Mathew  <rmathew@hotmail.com>

        * doc/sourcebuild.texi: Mention libbanshee and libmudflap.

2004-05-13  Andrew Pinski  <pinskia@physics.uc.edu>

        * tree-ssa.c (delete_tree_ssa): XFREE
        bitmaps allocated with BITMAP_XMALLOC.

        * tree-ssa-pre.c (execute_pre): Free ephi_use_pool and
        idfs_cache at the end of the function.

        * tree-ssa-live.c (calculate_live_on_entry): Free saw_def
        at the end of the function.

        * tree-ssa-dce.c (perform_tree_ssa_dce): Free
        el at the end of the function.

        * tree-into-ssa.c (insert_phi_nodes_for): XFREE
        bitmaps allocated with BITMAP_XMALLOC.

        * loop-unswitch.c (unswitch_single_loop): Free bbs at
        the end.

        * final.c (shorten_branches): Free uid_shuid before
        reallocating it.

        * bb-reoder.c (connect_traces): Free cold_traces at the end.

2004-05-13  Jeff Law  <law@redhat.com>

        * tree-ssa-live.c (calculate_live_on_entry): Ignore virtual
        variables.  Simplify slightly by using USE_OP/DEF_OP instead
        of USE_OP_PTR/DEF_OP_PTR and dereferencing the result.

        * tree-into-ssa.c (compute_global_livein): Use EXECUTE_IF_SET_IN_BITMAP
        rather than iterating through the blocks testing each bit in
        livein to initialize the worklist.
        (mark_def_sites): Remove useless checks of KILLS for virtual
        operands.

        * tree-ssa-forwprop.c (record_single_argument_cond_exprs): Accept
        new parameters for the statement and variable worklist as well
        as a bitmap of interesting SSA_NAMEs.  Walk over the statement
        worklist recording interesting variables in the variable worklist
        and bitmap.  Handle casts between integral and boolean types.
        (substitute_single_use_vars): Accept new parameters for the statement
        and variable worklist.  When a substitution is made add a new
        entry to the statement worklist.  Handle casts between integral
        and boolean types.
        (tree_ssa_forward_propagate_single_use_vars): Rework to pass
        worklists to children.  Iterate until the statement worklist
        is empty.

2004-05-13  Andrew Pinski  <pinskia@physics.uc.edu>

        * tree-outof-ssa.c (rewrite_vars_out_of_ssa): Free map at
        the end of the block.

        * tree-into-ssa.c (def_blocks_free): XFREE bitmaps allocated
        with BITMAP_XMALLOC.

        * tree-ssa-alias.c (delete_alias_info): XFREE bitmaps allocated
        with BITMAP_XMALLOC.

        * tree-ssa-dom.c (tree_ssa_dominator_optimize):
        Free nonzero_vars at the end of the function.

        * convert.c (convert_to_integer): Make a CONVERT_EXPR when there is a
        need to generate code instead of a NOP_EXPR.

2004-05-13  Ian Lance Taylor  <ian@wasabisystems.com>

        * gcc.c (default_compilers): Fill out initializers for new Fortran
        entries.

2004-05-13  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.h (PCC_BITFIELD_TYPE_MATTERS): Define.

2004-05-13  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.c (arm_default_short_enums): New function.
        (TARGET_DEFAULT_SHORT_ENUMS): Define.

2004-05-13  Diego Novillo  <dnovillo@redhat.com>

        Merge from tree-ssa-20020619-branch.

        * Makefile.in (reload1.o-warn): Add.
        (tree-alias-ander.o-warn): Add.
        (GMPLIBS): Define.
        (GMPINC): Define.
        (BANSHEELIB): Define.
        (BANSHEEINC): Define.
        (TREE_DUMP_H): Define.
        (TREE_SIMPLE_H): Define.
        (TREE_FLOW_H): Define.
        (LIBDEPS): Add BANSHEELIB.
        (INCLUDES): Add BANSHEEINC and GMPINC.
        (C_AND_OBJC_OBJS): Add c-simplify.o, tree-mudflap.o,
        c-mudflap.o and c-pretty-print.o.
        (C_OBJS): Remove c-pretty-print.o.
        (OBJS-common): Remove sibcall.o.
        Add tree-cfg.o, tree-dfa.o, tree-eh.o,
        tree-ssa.o, tree-optimize.o, tree-simple.o,
        tree-alias-type.o, gimplify.o, tree-pretty-print.o,
        tree-into-ssa.o, tree-outof-ssa.o, tree-alias-common.o,
        tree-ssa-ccp.o, @ANDER@, tree-ssa-dce.o, tree-ssa-copy.o,
        tree-nrv.o, tree-ssa-copyrename.o, tree-ssa-pre.o,
        tree-ssa-live.o, tree-ssa-operands.o, tree-ssa-alias.o,
        tree-ssa-phiopt.o, tree-ssa-forwprop.o, tree-nested.o,
        tree-ssa-dse.o, tree-ssa-dom.o, domwalk.o,
        tree-tailcall.o, gimple-low.o, tree-iterator.o,
        tree-phinodes.o, tree-ssanames.o, tree-sra.o,
        tree-complex.o, tree-ssa-loop.o, rtl-profile.o and
        tree-profile.o.
        (OBJC-archive): Add tree-nomudflap.o.
        (cc1): Add dependency on @TREEBROWSER@.
        (c-decl.o): Add dependency on TREE_DUMP_H.
        (c-dump.o): Likewise.
        (c-common.o): Add dependency on tree-iterator.h
        (c-pretty-print.o): Add dependency on DIAGNOSTIC_H.
        (gtype-desc.o): Add dependency on TREE_FLOW_H.
        (tree.o): Add dependency on tree-iterator.h,
        BASIC_BLOCK_H and TREE_FLOW_H.
        (tree-dump.o): Depend on TREE_DUMP_H instead of tree-dump.h.
        (langhooks.o): Add dependency on TREE_SIMPLE_H.
        (tree-alias-type.o, tree-alias-ander.o,
        tree-alias-common.o, tree-ssa.o, tree-into-ssa.o,
        tree-outof-ssa.o, tree-ssa-dse.o, tree-ssa-forwprop.o,
        tree-ssa-phiopt.o, tree-nrv.o, tree-ssa-copy.o,
        tree-ssa-dom.o, tree-ssanames.o, tree-phinodes.o,
        domwalk.o, tree-ssa-live.o, tree-ssa-copyrename.o,
        tree-ssa-pre.o, tree-cfg.o, tree-tailcall.o,
        tree-nested.o, tree-iterator.o, tree-dfa.o,
        tree-ssa-operands.o, tree-eh.o, tree-ssa-loop.o,
        tree-ssa-alias.o, tree-optimize.o, c-simplify.o,
        gimplify.o, gimple-low.o, tree-browser.o, tree-simple.o,
        tree-mudflap.o, c-mudflap.o, tree-nomudflap.o,
        tree-pretty-print.o, tree-ssa-dce.o, tree-ssa-ccp.o,
        tree-sra.o, tree-complex.o, tree-profile.o,
        rtl-profile.o): New rules.
        (function.o): Add dependency on basic-block.h
        (expr.o): Add dependency on tree-iterator.h.
        (sibcall.o): Remove.
        (profile.o): Depend on TREE_FLOW_H instead of TREE_H.
        (cfg.o): Add dependency on TIMEVAR_H.
        (cfghooks.o): Add dependency on TREE_FLOW_H.
        (reg-stack.o): Add dependency on basic-block.h.
        (GTFILES): Add hwint.h, tree-mudflaph.c, tree-flow.h,
        c-objc-common.c, c-common.c, c-parse.in, tree-ssanames.c,
        tree-eh.c, tree-phinodes.c, tree-cfg.c, tree-dfa.c,
        tree-ssa-ccp.c, tree-iterator.c, gimplify.c,
        tree-alias-type.h, tree-alias-common.h,
        tree-alias-type.c, tree-alias-common.c,
        tree-ssa-operands.h, tree-ssa-operands.c, tree-profile.c,
        rtl-profile.c and tree-nested.c.
        (gt-tree-alias-common.h, gt-tree-mudflap.h,
        gt-tree-ssa-ccp.h, gt-tree-eh.h, gt-tree-ssanames.h,
        gt-tree-iterator.h, gt-gimplify.h, gt-tree-phinodes.h,
        gt-tree-cfg.h, gt-tree-nested.h): New rules.
        (TEXI_GCCINT_FILES): Add cfg.texi and tree-ssa.texi.
        * basic-block.h: Include predict.h
        (struct edge_def): Add GTY marker.
        Change field 'insns' to be a union of tree and rtx.
        (EDGE_TRUE_VALUE): Define.
        (EDGE_FALSE_VALUE): Define.
        (EDGE_EXECUTABLE): Define.
        (struct bb_ann_d): Forward declare.
        (struct basic_block_def): Add GTY marker.
        Remove fields head_tree and end_tree.
        Add fields stmt_list, rbi and tree_annotations.
        (struct reorder_block_def): Define.
        (basic_block_info): Add GTY marker.
        (ENTRY_BLOCK_PTR, EXIT_BLOCK_PTR): Change to global
        variables instead of macros.
        (flow_call_edges_add): Remove declaration.
        (make_eh_edge): Remove declaration.
        (brief_dump_cfg, find_edge, tree_predicted_by_p,
        rtl_predicted_by_p, tree_predict_edge, rtl_predict_edge,
        predict_edge_def, rtl_make_eh_edge, find_basic_blocks,
        cleanup_cfg, delete_unreachable_blocks, merge_seq_blocks,
        alloc_rbi_pool, initialize_bb_rbi, free_rbi_pool): Declare.
        (try_redirect_by_replacing_jump): Modfiy return type to
        edge instead of bool.
        * bb-reorder.c (copy_bb): Call duplicate_block
        instead of cfg_layout_duplicate_bb.
        (copy_bb_p): Call can_duplicate_block_p instead of
        cfg_layout_can_duplicate_bb_p.
        * bitmap.c (bitmap_first_set_bit): Abort if word
        wasn't found.
        (bitmap_last_set_bit): Likewise.
        * builtin-types.def (DEF_FUNCTION_TYPE_2): Add
        (DEF_FUNCTION_TYPE_3): Add.
        * builtins.c (c_strlen): Make extern.
        (builtin_save_expr): New.
        (expand_builtin_nonlocal_goto): New.
        (expand_builtin_constant_p): Remove.
        (expand_builtin_mathfn): Call builtin_save_expr instead
        of save_expr.
        (expand_builtin_mathfn_2): Likewise.
        (expand_builtin_strcmp): Likewise.
        (expand_builtin_strncmp): Likewise.
        (expand_builtin_strcat): Likewise.
        (fold_builtin_cabs): Likewise.
        (expand_builtin_alloca): Don't trigger if -fmudflap is
        given.
        (build_string_literal): Set TREE_INVARIANT on new node.
        (expand_builtin_profile_fun): New.
        (round_trampoline_addr): New.
        (expand_builtin_init_trampoline): New.
        (expand_builtin_adjust_trampoline): New.
        (expand_builtin) <BUILT_IN_NEXT_ARG>: Call simplify_builtin_next_arg.
        <BUILT_IN_CONSTANT_P>: Return const0_rtx;
        <BUILT_IN_STACK_ALLOC, BUILT_IN_STACK_SAVE,
        BUILT_IN_STACK_RESTORE, BUILT_IN_NONLOCAL_GOTO,
        BUILT_IN_PROFILE_FUNC_ENTER, BUILT_IN_PROFILE_FUNC_EXIT,
        BUILT_IN_INIT_TRAMPOLINE, BUILT_IN_ADJUST_TRAMPOLINE>:
        Handle.
        (fold_builtin_expect): New.
        (fold_builtin_isascii): Don't return non-constant results
        in GIMPLE form.
        (fold_builtin_isdigit): Likewise.
        (fold_builtin_1): New.
        (fold_builtin): Call it.
        (build_function_call_expr): Update call to build a new
        CALL_EXPR.
        (purge_builtin_constant_p): Remove.
        (simplify_builtin, simplify_builtin_memcmp,
        simplify_builtin_strcmp, simplify_builtin_strncmp,
        simplify_builtin_strpbrk, simplify_builtin_strstr,
        simplify_builtin_strchr, simplify_builtin_strrchr,
        simplify_builtin_strcat, simplify_builtin_strncat,
        simplify_builtin_strspn, simplify_builtin_strcspn,
        simplify_builtin_next_arg, simplify_builtin_va_start,
        simplify_builtin_sprintf): New.
        * builtins.def (BUILT_IN_STACK_ALLOC,
        BUILT_IN_STACK_SAVE, BUILT_IN_STACK_RESTORE,
        BUILT_IN_INIT_TRAMPOLINE, BUILT_IN_ADJUST_TRAMPOLINE,
        BUILT_IN_NONLOCAL_GOTO, BUILT_IN_PROFILE_FUNC_ENTER,
        BUILT_IN_PROFILE_FUNC_EXIT): Define.
        * c-common.c: Include tree-iterator.h and hashtab.h.
        (lang_statement_code_p): Declare.
        (lang_gimplify_stmt): Declare.
        (fix_string_type): Set TREE_INVARIANT for value.
        (pointer_int_sum): Rely on build to set TREE_CONSTANT.
        (c_type_hash): New.
        (c_common_get_alias_set): Handle multiple type nodes
        referring to "the same" type, currently for C90 only.
        (c_add_case_label): Use create_artificial_label.
        (finish_label_address_expr): Don't set TREE_CONSTANT on
        result.
        (c_expand_expr): Don't handle STMT_EXPR.
        (handle_alias_attribute): Marke aliased variables to be
        TREE_STATIC.
        (handle_nonnull_attribute): Initialize arg_num.
        (check_function_nonnull): Likewise.
        (c_walk_subtrees): New.
        (c_estimate_num_insns_1): Don't handle
        EXPR_WITH_FILE_LOCATION nor FILE_STMT.
        (c_decl_uninit_1): Remove.
        (c_decl_uninit): Remove.
        (c_warn_unused_result): New.
        * c-common.def (ASM_STMT): Change number of operands
        to 4.
        (FILE_STMT): Remove.
        * c-common.h (lang_expand_stmt, lang_expand_decl_stmt):
        Remove.
        (lang_gimplify_stmt): Add.
        (expand_stmt): Remove.
        (ASM_CV_QUAL, ASM_STRING, ASM_OUTPUTS, ASM_INPUTS,
        ASM_CLOBBERS, STMT_EXPR_WARN_UNUSED_RESULT,
        ASM_VOLATILE_P, FILE_STMT_FILENAME_NODE,
        FILE_STMT_FILENAME, STMT_LINENO, STMT_LINENO_FOR_FN_P,
        ASM_INPUT_P, DECL_C_HARD_REGISTER): Remove.
        (genrtl_do_pushlevel, genrtl_goto_stmt, genrtl_expr_stmt,
        genrtl_expr_stmt_value, genrtl_decl_stmt, genrtl_if_stmt,
        genrtl_while_stmt, genrtl_do_stmt, genrtl_return_stmt,
        genrtl_for_stmt, genrtl_break_stmt, genrtl_continue_stmt,
        genrtl_scope_stmt, genrtl_switch_stmt, genrtl_case_label,
        genrtl_compound_stmt, genrtl_asm_stmt,
        genrtl_cleanup_stmt, c_decl_uninit): Remove.
        (c_do_switch_warnings, c_gimplify_expr, c_walk_subtrees,
        c_tree_chain_matters_p, c_warn_unused_result,
        c_genericize, c_gimplify_stmt, stmt_expr_last_stmt):
        Declare.
        * c-convert.c (convert): Make convert work when
        converting to compatible types across translation unit.
        * c-decl.c: Include langhooks.h, tree-mudflap.h,
        tree-simple.h, diagnostic.h and tree-dump.h
        (merge_decls): Initialize oldtype to NULL.
        (finish_decl): Use DECL_HARD_REGISTER instead of
        DECL_C_HARD_REGISTER.
        (check_bitfield_type_and_width): Check for null
        lang_type_specific when check the precision of an enum.
        (grokdeclarator): Immediately layout an ARRAY_TYPE used
        in a pointer-to-array declarator.
        (finish_struct): Clear allocated struct lang_type.
        (finish_enum): Set enum_min and enum_max.  Set
        TYPE_MIN/MAX_VALUE to the limits of the compatible type,
        not to the enumerators.
        (set_decl_nonlocal): New.
        (store_parm_decls): Use it via walk_tree.
        (c_finalize): New.
        (finish_function): When !targetm.have_ctors_dtors,
        record static constructors and destructors here...
        (c_expand_body_1): ... not here.
        (c_expand_decl): Rename from c_expand_decl_stmt.
        Handle all C-specific expansion semantics.
        * c-dump.c (dump_stmt): Use EXPR_LOCUS instead of
        STMT_LINENO.
        * c-format.c (handle_format_arg_attribute): Initialize
        format_num.
        * c-lang.c: Include tree-inline.h
        (LANG_HOOKS_EXPAND_DECL,
        LANG_HOOKS_FUNCTION_MISSING_NORETURN_OK_P,
        LANG_HOOKS_TREE_INLINING_WALK_SUBTREES,
        LANG_HOOKS_TREE_INLINING_TREE_CHAIN_MATTERS_P,
        LANG_HOOKS_GIMPLIFY_EXPR, LANG_HOOKS_TYPES_COMPATIBLE_P): Define.
        (LANG_HOOKS_DECL_UNINIT, LANG_HOOKS_RTL_EXPAND_STMT,
        LANG_HOOKS_TREE_INLINING_ESTIMATE_NUM_INSNS): Remove.
        (c_types_compatible_p): New.
        * c-mudflap.c: New file.
        * c-objc-common.c: Include tree-mudflap.h
        (start_cdtor, finish_cdtor): Collapse
        together into
        (build_cdtor): ...here.  Update to construct a complete tree
        for the function.  No need to call push_scope, pop_scope, or
        clear_last_expr, or set current_function_cannot_inline.
        (c_missing_noreturn_ok_p): Change prototype to return
        bool.
        (c_objc_common_init): Don't set lang_missing_noreturn_ok_p.
        * c-opts.c (c_common_handle_option): Move handling of -fdump- to
        opts.c.
        (c_common_post_options): Don't ever use rtl inlining.
        * c-parse.in: Use EXPR_LOCUS instead of STMT_LINENO.
        * c-pragma.c (handle_pragma_redefine_extname): Define
        always.
        (init_pragma): Activate #pragma redefine_extname for mudflap.
        * c-pretty-print.c (pp_c_statement): Remove FILE_STMT.
        (pp_c_initializer): Accept any type CONSTRUCTOR.
        (pp_c_initializer_list): Fix code expectations for VECTOR_TYPE and
        COMPLEX_TYPE.
        (decl_name_str): New local function.
        (pp_c_direct_declarator): Call it.
        (pp_c_primary_expression): Call it.
        (pp_c_id_expression): Call it.
        (pp_c_statement): Call it.
        (print_c_tree): Create new pp object.
        * c-pretty-print.h (pp_c_tree_decl_identifier,
        print_c_tree): Declare.
        * c-semantics.c: Include langhooks.h
        (lang_expand_stmt, lang_expand_decl_stmt,
        find_reachable_label_1, find_reachable_label,
        expand_unreachable_if_stmt, expand_unreachable_stmt,
        genrtl_do_stmt_1): Remove.
        (begin_stmt_tree): Don't check for changed filename.
        Call annotate_with_locus.
        (finish_stmt_tree): Don't set line for end of function.
        (build_stmt): Don't check type nodes for
        side effects.
        (build_stmt): Set TREE_SIDE_EFFECTS.
        Set EXPR_LOCUS instead of STMT_LINENO.
        (lang_expand_stmt, lang_expand_decl_stmt,
        expand_cond, genrtl_do_pushlevel, genrtl_goto_stmt, genrtl_expr_stmt,
        genrtl_expr_stmt_value, genrtl_decl_stmt, genrtl_if_stmt,
        genrtl_while_stmt, genrtl_do_stmt_1, genrtl_do_stmt,
        genrtl_return_stmt, genrtl_for_stmt, genrtl_break_stmt,
        genrtl_continue_stmt, genrtl_scope_stmt, genrtl_switch_stmt,
        genrtl_case_label, genrtl_compound_stmt, genrtl_asm_stmt,
        genrtl_cleanup_stmt, expand_stmt, find_reachable_label,
        find_reachable_label_1, expand_unreachable_if_stmt,
        expand_unreachable_stmt): Remove.
        (prep_stmt): Use EXPR_LOCUS instead of STMT_LINENO.
        * c-simplify.c: New file.
        * c-tree.h (C_LANG_TREE_NODE_CHAIN_NEXT): Define.
        (struct lang_type): Add fields enum_min and enum_max.
        (c_expand_decl_stmt, c_missing_noreturn_ok_p): Remove.
        (c_expand_decl, c_missing_noreturn_ok_p,
        c_types_compatible_p): Declare.
        * c-typeck.c (tagged_types_tu_compatible_p): Allow for
        compiler-generated TYPE_DECLs without a DECL_ORIGINAL_TYPE.
        (default_function_array_conversion): Rely on build to
        set TREE_CONSTANT.
        (parser_build_binary_op, pointer_diff): Likewise.
        (build_unary_op, build_binary_op): Likewise.
        (build_array_ref):
        (build_external_ref): Set TREE_INVARIANT.
        (build_c_cast, pop_init_level): Likewise.
        (process_init_element): Use ASM_VOLATILE_P.
        (build_asm_expr): Adapt to GENERIC/GIMPLE syntax.
        (c_finish_case): Call c_do_switch_warnings.
        * c.opt (fdump-): Remove.
        * calls.c (try_to_integrate): Remove.
        (prepare_call_address): Replace fndecl arg with a
        precomputed static chain value.
        (emit_call_1): New argument for full call expr.
        (flags_from_decl_or_type): Call special_function_p.
        (initialize_argument_information): Add argument
        may_tailcall.
        (purge_reg_equiv_notes): New.
        (expand_call): Do not try to expand calls inline.
        (fixup_tail_calls): New.
        * cfg.c: Include timevar.h and ggc.h.
        (bb_pool, edge_pool): Remove.
        (ENTRY_BLOCK_PTR, EXIT_BLOCK_PTR): Declare.
        (entry_exit_blocks): Remove.
        (rbi_pool): Declare.
        (init_flow): Do not create pools.
        Allocate entry/exit block.
        (free_edge, alloc_block, expunge_block, unchecked_make_edge): Use GGC.
        (alloc_rbi_pool, free_rbi_pool, initialize_bb_rbi): New.
        (unlink_block): Clear b->prev_bb and b->next_bb.
        (compact_blocks): Clear all slots of BASIC_BLOCK array.
        (dump_flow_info): Work on trees too.
        (dump_cfg_bb_info): New.
        (brief_dump_cfg): New.
        * cfganal.c (need_fake_edge_p, flow_call_edges_add): Remove.
        (find_edge): New.
        * cfgbuild.c (rtl_make_eh_edge): Rename from
        make_eh_edge.  Update all users.
        (find_basic_blocks): Don't call VARRAY_FREE on
        basic_block_info.
        * cfgcleanup.c (outgoing_edges_match): Initialize newpos1
        and newpos2.
        (delete_unreachable_blocks): Return changed status.
        (merge_seq_blocks): New.
        * cfghooks.c: Include tree-flow.h
        (tree_register_cfg_hooks, ir_type): New.
        (redirect_edge_and_branch): Change return type to edge.
        (predict_edge, predicted_by_p, can_duplicate_block_p,
        duplicate_block, block_ends_with_call_p,
        block_ends_with_condjump_p, flow_call_edges_add): New.
        * cfghooks.h (redirect_edge_and_branch): Change return
        type to edge.
        (predict_edge, predicted_by_p, can_duplicate_block_p,
        duplicate_block, block_ends_with_call_p,
        block_ends_with_condjump_p, flow_call_edges_add): Declare.
        (redirect_edge_and_branch): Change return type to edge.
        (struct cfg_hooks): Add fields block_ends_with_call_p,
        block_ends_with_condjump_p, flow_call_edges_add,
        predict_edge, predicted_by_p, can_duplicate_block_p and
        duplicate_block.
        (tree_cfg_hooks, ir_type, tree_register_cfg_hooks): Declare.
        * cfglayout.c (cfg_layout_pool, cfg_layout_initialize_rbi): Removed.
        (fixup_reorder_chain): Use initialize_bb_rbi.
        (cfg_layout_can_duplicate_bb_p, cfg_layout_duplicate_bb): Hookized.
        (cfg_layout_initialize): Use cfg.c rbi pool manipulation functions.
        (can_copy_bbs_p, copy_bbs): Use cfghooks for bb duplication.
        (insn_locators_initialize): Use new info about blocks.
        * cfglayout.h (typedef struct reorder_block_def): Moved to
        basic_block.h.
        (cfg_layout_can_duplicate_bb_p, cfg_layout_duplicate_bb): Declaration
        removed.
        * cfgloop.c: Include tree.h and tree-flow.h.
        * cfgloop.h (create_loop_notes): Declare.
        * cfgloopmanip.c (create_loop_notes): New.
        * cfgrtl.c (cfg_layout_create_basic_block): Use initialize_bb_rbi.
        (rtl_cfg_hooks, cfg_layout_rtl_cfg_hook): Fill in can_duplicate_block_p
        and duplicate_block fields.
        (create_basic_block_structure): Don't look at
        RTX_INTEGRATED_P.
        (rtl_block_ends_with_call_p): New.
        (rtl_block_ends_with_condjump_p): New.
        (need_fake_edge_p): Moved from cfganal.c.
        (rtl_flow_call_edges_add): Moved from cfganal.c (flow_call_edges_add).
        (rtl_cfg_hooks): Add rtl_block_ends_with_call_p,
        rtl_block_ends_with_condjump_p, rtl_flow_call_edges_add.
        (cfg_layout_rtl_cfg_hooks): Ditto.
        * cgraph.c (cgraph_mark_reachable_node): Don't force nested
        functions to be reachable.
        * cgraphunit.c (decide_is_function_needed):
        * cgraphunit.c (decide_is_function_needed): Nested functions of extern
        inline functions don't need to be output.
        (cgraph_assemble_pending_functions): Don't do anything
        special for nested functions.
        (cgraph_mark_functions_to_output): Likewise.
        (cgraph_finalize_function): Don't zap DECL_STRUCT_FUNCTION.
        (cgraph_analyze_function): Use estimate_num_insns.
        (cgraph_mark_functions_to_output): Likewise.
        (cgraph_estimate_growth, cgraph_clone_inlined_nodes): Likewise.
        (cgraph_expand_function): Allow functions to not be
        emitted.
        (cgraph_remove_unreachable_nodes):
        (cgraph_recursive_inlining_p): Simplify.
        (lookup_recursive_calls,
        cgraph_decide_recursive_inlining): New.
        (cgraph_decide_inlining_*): Update calls of
        cgraph_mark_inline.
        * combine.c (get_pos_from_mask): Always set *plen.
        * common.opt (fdump-, fmudflap, fmudflapth, fmudflapir,
        ftree-based-profiling, ftree-ccp, ftree-ch,
        ftree-combine-temps, ftree-copyrename, ftree-dce,
        ftree-dominator-opts, ftree-dse, ftree-loop-optimize,
        ftree-points-to, ftree-pre, ftree-sra, ftree-ter,
        ftree-lrs): Add.
        * config.in (HAVE_LD_PIE, HAVE_BANSHEE, PREFIX_INCLUDE_DIR):
        Undefine.
        * configure.ac: Add --enable-tree-browser option.
        Add --with-libbanshee option.
        Add GMPLIBS and GMPINC.
        * configure: Regenerate.
        * coverage.c (tree_ctr_tables): New.
        (coverage_counter_alloc): Use it.
        (build_ctr_info_value): Ditto.
        (coverage_counter_ref): Ditto.  Rename to rtl_coverage_counter_ref.
        (tree_coverage_counter_ref): New.
        * coverage.h (coverage_counter_ref): Remove declaration.
        (rtl_coverage_counter_ref): Declare.
        (tree_coverage_counter_ref): Declare.
        * cppexp.c (append_digit): Rearrange unsignedp/overflow setting.
        (eval_token, num_binary_op, num_part_mul, num_div_op): Likewise.
        * cse.c (fold_rtx): Do not handle CONSTANT_P_RTX.
        (struct cse_basic_block_data): Rename enum values to not
        conflict with profile.h; update all uses.
        * dbxout.c (dbxout_symbol_location): Don't mention integrate.c
        in comments.
        * defaults.h (TRAMPOLINE_ALIGNMENT): Move from function.c.
        * diagnostic.h (debug_output_buffer, dump_generic_node,
        print_generic_stmt, print_generic_stmt_indented,
        print_generic_expr, print_generic_decl,
        debug_generic_expr, debug_generic_stmt, debug_c_tree):
        Declare.
        * dominance.c: Cache immediate dominators.
        * domwalk.c: New file.
        * domwalk.h: New file.
        * dwarf2out.c (is_fortran): Support DW_LANG_Fortran95.
        (gen_subprogram_die): Generate a DIE for a named
        return value.
        (loc_descriptor_from_tree): Treat RESULT_DECL like VAR_DECL.
        (add_location_or_const_value_attribute): Likewise.
        (add_bound_info): Likewise.
        (gen_decl_die): Likewise.
        * emit-rtl.c (maybe_set_first_label_num): New.
        (copy_most_rtx): Don't copy the integrated flag.
        Copy the new return_val flag.
        * et-forest.c (MAX_NODES): Define.
        (record_path_before_1): Abort if len is greater than
        MAX_NODES.
        * except.c (gen_eh_region, gen_eh_region_cleanup, gen_eh_region_try,
        gen_eh_region_catch, gen_eh_region_allowed,
        gen_eh_region_must_not_throw, get_eh_region_number,
        get_eh_region_may_contain_throw, get_eh_region_tree_label,
        set_eh_region_tree_label, expand_resx_expr): New.
        (expand_eh_region_start, expand_start_catch): Use them.
        (expand_end_catch): Tidy.
        (note_eh_region_may_contain_throw): Take region argument.
        (note_current_region_may_contain_throw): New.
        (get_exception_filter): Export.
        (collect_eh_region_array): Export.
        (remove_unreachable_regions): Check ERT_TRY based on reachability
        of catches, not reachability of continue_label.  Never remove
        ERT_MUST_NOT_THROW regions.
        (collect_rtl_labels_from_trees): New.
        (convert_from_eh_region_ranges): Use it.
        (connect_post_landing_pads): Handle dying cleanups.
        (struct reachable_info): Add callback data.
        (add_reachable_handler): Invoke the callback.
        (foreach_reachable_handler): New.
        (reachable_handlers): Use it.
        (arh_to_landing_pad, arh_to_label): New.
        (can_throw_internal_1): Split out from can_throw_internal.
        (can_throw_external_1): Similarly.
        * except.h: Update.
        * explow.c (emit_stack_save): Remove savearea mode check.
        (update_nonlocal_goto_save_area): New.
        (allocate_dynamic_stack_space): Use it.
        (probe_stack_range): Never emit loop notes.
        * expmed.c (extract_fixed_bit_field): Always propagate the
        target for the shift if it is a REG.
        * expr.c: Include tree-iterator.h
        (is_zeros_p): Remove.
        (categorize_ctor_elements_1, categorize_ctor_elements): New.
        (count_type_elements): New.
        (mostly_zeros_p): Use them.
        (expr_wfl_stack): Remove.
        (convert_move): Do nothing if to and from are the same.
        (emit_block_move_via_loop): Don't emit LOOP notes.
        (emit_move_insn): Don't handle CONSTANT_P_RTX.
        (emit_move_insn_1): Don't generate inline warnings.
        (expand_vars, expand_var): Split from ...
        (expand_expr_1): ... here.
        (expand_expr_real, expand_expr_real_1):  Use new macros
        EXPR_LOCATION and EXPR_HAS_LOCATION.
        * expr.h (simplify_builtin_fputs,
        simplify_builtin_strcpy, simplify_builtin_strncpy,
        expand_var, fixup_tail_calls,
        update_nonlocal_goto_save_area): Declare.
        (lookup_static_chain, expand_inline_function,
        mark_seen_cases): Remove.
        (prepare_call_address): Change type of 2nd argument to
        rtx.
        * final.c (profile_function): Update static chain test.
        (final): Don't look at RTX_INTEGRATED_P.
        * flags.h (flag_mudflap, flag_mudflap_threads,
        flag_mudflap_ignore_reads, flag_tree_pre, flag_tree_ccp,
        flag_tree_dce, flag_tree_combine_temps,
        flag_tree_live_range_split, flag_tree_dom, flag_tree_ch,
        flag_tree_dse, flag_tree_sra, flag_tree_copyrename,
        flag_tree_points_to): Declare.
        (enum pta_type): Declare.
        * flow.c (lang_missing_noreturn_ok_p): Remove.
        (check_function_return_warnings): Remove.
        (update_life_info): Update comments.
        (free_basic_block_vars): Don't call VARRAY_FREE for
        basic_block_info.
        (regno_uninitialized): Remove.
        * fold-const.c (int_const_binop): Make extern.
        (non_lvalue): Rely on build to set TREE_CONSTANT.
        (operand_equal_p): Replace only_const argument with
        flags.  Allow pure functions if OEP_PURE_SAME.
        (fold): Use OEP_ONLY_CONST.
        (invert_truthvalue) <NOP_EXPR> Break if argument is of
        boolean type.
        (fold_relational_hi_lo,
        nondestructive_fold_binary_to_constant,
        nondestructive_fold_unary_to_constant,
        fold_read_from_constant_string): New.
        * function.c (struct function): Remove calls_constant_p.
        (current_function_calls_constant_p): Remove.
        (inline_function_decl): Remove.
        (put_var_into_stack): Don't use it.
        (fix_lexical_addr): Likewise.
        (inline_function_decl): Remove extern declaration.
        (TRAMPOLINE_ALIGNMENT): Move to defaults.h.
        (trampolines_created): Move to varasm.c.
        (free_after_compilation): Update for removed fields.
        (allocate_struct_function): Likewise.
        (delete_handlers, lookup_static_chain): Remove.
        (fix_lexical_addr): Don't consider non-local variable refs.
        (trampoline_address): Remove.
        (round_trampoline_addr): Move to builtins.c.
        (adjust_trampoline_addr): Remove.
        (expand_function_start): Update for changes to static chain
        and nonlocal goto handling.
        (initial_trampoline): Move to varasm.c.
        (expand_function_end): Don't build trampolines or kill
        unreferenced nonlocal goto labels.
        (free_after_compilation): Don't set it.
        (expand_function_end): Likewise.
        (setjmp_vars_warning): Rename from
        uninitialized_vars_warning, remove uninitialized vars warning.
        (uninitialized_vars_warning): Remove old comment
        and check for DECL_INITIAL, replace with a check of TREE_NO_WARNING
        and do not call the langhook.
        (expand_function_start, expand_function_end): Don't do
        function instrumentation here.
        (clear_block_marks): Rename from reorder_blocks_0, export.
        (blocks_nreverse): Export.
        (uninitialized_vars_warning): Use DECL_RTL_SET_P to test for presence
        of rtl.
        (reset_block_changes, record_block_change, finalize_block_changes,
        check_block_change, free_block_changes): New functions.
        (assign_parms): Setting of current_function_stdarg
        moved ...
        (allocate_struct_function): ... here.
        * function.h (struct function): Remove x_nonlocal_labels,
        x_nonlocal_goto_handler_slots, x_nonlocal_goto_stack_level,
        x_context_display, x_trampoline_list, needs_context.
        Add static_chain_decl, nonlocal_goto_save_area.
        (struct function): Remove x_clobber_return_insn.
        Add tail_call_emit field, last_label_uid,
        unexpanded_var_list, dont_emit_block_notes,
        ib_boundaries_block, function_end_locus and saved_tree/saved_args.
        (clear_block_marks): Declare.
        * gcc.c (MFWRAP_SPEC, MFLIB_SPEC): Add -fmudflapth support.
        (mfwrap_spec, mflib_spec): Declare.
        (cpp_unique_options, cc1_options): Ditto.
        (default_compilers): Add .F and .f90.
        (static_specs): Add mfwrap and mflib.
        * gcse.c (want_to_gcse_p, gcse_constant_p): Don't handle
        CONSTANT_RTX_P.
        (reg_used_on_edge, reg_killed_on_edge, bypass_block):
        Update to match insns field in struct edge_def.
        * gdbinit.in (pgs, pge): Define.
        * genattrtab.c (ATTR_PERMANENT_P): Use the return_val flag
        instead of the integrated flag.
        * gengtype-lex.l (IWOrD): Add HOST_WIDEST_INT
        * gengtype-yacc.y (bitfieldlen): Add empty action.
        (struct_fields): Accept unnamed bitfields.
        (bitfieldlen): Split from ...
        (bitfieldopt): ... here.
        * gengtype.c (ifiles): Add tree-alias-type.h and
        tree-flow.h.
        * genrecog.c (validate_pattern): Do not handle
        CONSTANT_P_RTX.
        * gimple-low.c: New file.
        * gimplify.c: New file.
        * haifa-sched.c (priority): Do not handle CONSTANT_P_RTX.
        (restore_line_notes): Do not set RTX_INTEGRATED_P.
        * ifcvt.c (dead_or_predicable): Initialize local variable
        'earliest'.
        * input.h (expr_wfl_stack): Remove.
        * integrate.c (INTEGRATE_THRESHOLD): Remove.
        (setup_initial_hard_reg_value_integration): Likewise.
        (initialize_for_inline): Likewise.
        (note_modified_parmregs): Likewise.
        (integrate_parm_decls): Likewise.
        (process_reg_param): Likewise.
        (save_parm_insns): Likewise.
        (copy_insn_list): Likewise.
        (copy_insn_notes): Likewise.
        (compare_blocks): Likewise.
        (find_block): Likewise.
        (inlining): Likewise.
        (function_cannot_inline_p): Likewise.
        (parmdecl_map): Likewise.
        (in_nonparam_insns): Likewise.
        (save_for_inline): Likewise.
        (FIXED_BASE_PLUS): Likewise.
        (expand_inline_function): Likewise.
        (copy_rtx_and_substitute): Don't look at map->integrating,
        map->inline_target, and inlining, since we are never copying
        for integrating.
        Don't abort on RTX_INTEGRATED_P.
        (old_fun): Remove.
        (output_inline_function): Remove.
        * integrate.h (struct inline_map): Remove fields integrating,
        block_map, leaf_reg_map, inline_target, and local_return_label.
        * jump.c (next_nonnote_insn_in_loop, duplicate_loop_exit_test,
        copy_loop_headers, never_reached_warning): Removed.
        (any_uncondjump_p): Reject nonlocal goto.
        * langhooks-def.h (lhd_types_compatible_p,
        lhd_expand_decl, lhd_gimplify_expr): Declare.
        (LANG_HOOKS_EXPAND_DECL, LANG_HOOKS_TYPES_COMPATIBLE_P,
        LANG_HOOKS_FUNCTION_MISSING_NORETURN_OK_P,
        LANG_HOOKS_FUNCTION_LEAVE_NESTED,
        LANG_HOOKS_FUNCTION_MISSING_NORETURN_OK_P,
        LANG_HOOKS_GIMPLIFY_EXPR,
        LANG_HOOKS_GIMPLE_BEFORE_INLINING,
        LANG_HOOKS_EXPAND_DECL, LANG_HOOKS_TYPES_COMPATIBLE_P,
        LANG_HOOKS_GIMPLIFY_EXPR,
        LANG_HOOKS_GIMPLE_BEFORE_INLINING): Define.
        (LANG_HOOKS_DECL_UNINIT, LANG_HOOKS_RTL_EXPAND_START,
        LANG_HOOKS_RTL_EXPAND_STMT, LANG_HOOKS_RTL_EXPAND_END,
        LANG_HOOKS_FUNCTION_LEAVE_NESTED,
        LANG_HOOKS_RTL_EXPAND_INITIALIZER,
        LANG_HOOKS_DECL_UNINIT,
        LANG_HOOKS_RTL_EXPAND_INITIALIZER): Remove.
        * langhooks.c: Include tree-simple.h.
        (lhd_expand_decl): New.
        (lhd_types_compatible_p): New.
        (lhd_decl_uninit): Remove.
        (lhd_gimplify_expr): New.
        * langhooks.h (struct lang_hooks_for_rtl_expansion):
        Remove.
        (struct lang_hooks_for_functions): Add field
        missing_noreturn_ok_p.
        (struct lang_hooks): Add field expand_decl,
        types_compatible_p, gimplify_expr and
        gimple_before_inlining.
        Remove fields decl_uninit and rtl_expand
        * opts.c (decode_options): Set flag_tree_ccp,
        flag_tree_dce, flag_tree_dom, flag_tree_dse,
        flag_tree_pre, flag_tree_ter,
        flag_tree_live_range_split, flag_tree_sra,
        flag_tree_copyrename and flag_tree_ch at -O1 and higher.
        (common_handle_option): Handle OPT_fdump_, OPT_fmudflap,
        OPT_fmudflapth, OPT_fmudflapir,
        OPT_ftree_based_profiling, OPT_ftree_ccp, OPT_ftree_dce,
        OPT_ftree_combine_temps, OPT_ftree_ter, OPT_ftree_lrs,
        OPT_ftree_dominator_opts, OPT_ftree_copyrename,
        OPT_ftree_ch, OPT_ftree_dse, OPT_ftree_sra,
        OPT_ftree_points_to_ and OPT_ftree_pre.
        * output.h (regno_uninitialized, find_basic_blocks,
        cleanup_cfg, delete_unreachable_blocks,
        check_function_return_warnings): Remove.
        * params.def (PARAM_MAX_INLINE_INSNS_RECURSIVE,
        PARAM_MAX_INLINE_INSNS_RECURSIVE_AUTO,
        PARAM_MAX_INLINE_RECURSIVE_DEPTH,
        PARAM_MAX_INLINE_RECURSIVE_DEPTH_AUTO,
        PARAM_GLOBAL_VAR_THRESHOLD, PARAM_MAX_ALIASED_VOPS):
        * params.h (GLOBAL_VAR_THRESHOLD, MAX_ALIASED_VOPS):
        Define.
        * passes.c (rest_of_decl_compilation):
        (rest_of_handle_sibling_calls): Remove.
        (rest_of_handle_inlining): Remove.
        (rest_of_handle_gcse): Do not run
        purge_builtin_constant_p.
        (rest_of_compilation): Update.
        Do not call copy_loop_headers.
        Do rtl-based profiling only when
        !flag_tree_based_profiling.  Register rtl-based profiling
        hooks.
        * predict.c:  Include tree-flow.h, ggc.h, tree-dump.h
        (predicted_by_p): Rename to ...
        (rtl_predicted_by_p): .. this one; make global
        (tree_predicted_by_p): New.
        (dump_prediction): Add FILE argument.
        (predict_edge): Rename to ...
        (rtl_predict_edge): .. this one.
        (tree_predict_edge): New.
        (combine_predictions_for_insn): Update calls of predict_edge.
        (predict_loops): Break out from ...
        (estimate_probability): ... here; update comments; move updating
        of unknown probabilities from ...
        (estimate_bb_frequencies): ... here.
        (combine_predictions_for_bb): New.
        (tree_predict_by_opcode): New.
        (tree_estimate_probability): New.
        * predict.def (PRED_TREE_POINTER, PRED_TREE_OPCODE_POSITIVE,
        PRED_TREE_OPCODE_NONEQUAL, PRED_TREE_FPOPCODE): New predictors.
        * predict.h: Add include guard.
        (predict_edge, predict_edge_def): Move prototypes to basic_block.h
        * pretty-print.c (pp_write_text_to_stream): Make extern.
        * pretty-print.h (pp_write_text_to_stream): Declare.
        * print-rtl.c (print_rtx): Don't print the integrated flag.
        Print the return_val flag.
        * print-tree.c: Use TREE_FILENAME and TREE_LINENO instead
        of DECL_SOURCE_FILE and DECL_SOURCE_LINE respectively.
        Remove support for EXPR_WITH_FILE_LOCATION nodes.
        (print_node): Print TREE_INVARIANT and TREE_VISITED.
        * profile.c: Include cfghooks.h, tree-flow.h.
        (profile_hooks): New.
        (profile_dump_file): New.
        (instrument_edges): Use hooks instead of RTL-specific code.
        (instrument_values): Ditto.
        (get_exec_counts): Ditto.
        (compute_branch_probabilities): Ditto.
        (compute_value_histograms): Ditto.
        (branch_prob): Ditto.
        (find_spanning_tree): Ditto.
        (end_branch_prob): Ditto.
        (gen_edge_profiler): Move to rtl-profile.c (rtl_gen_edge_profiler).
        (gen_interval_profiler): Ditto (rtl_gen_interval_profiler).
        (gen_pow2_profiler): Ditto (rtl_gen_pow2_profiler).
        (gen_one_value_profiler): Ditto (rtl_gen_one_value_profiler).
        (tree_register_profile_hooks): New.
        (rtl_register_profile_hooks): New.
        * ra-rewrite.c (rewrite_program): Clear variable info.
        * recog.c (immediate_operand): Do not handle CONSTANT_P_RTX.
        * regs.h: Add include guards.
        * reload.c (decompose): Clear val using memset.
        * rtl.def (CONSTANT_P_RTX): Remove.
        * rtl.h (CONSTANT_P): Do not handle CONSTANT_P_RTX.
        (copy_loop_headers): Remove.
        (struct rtx_def): Replace the integrated flag with the
        return_val flag.
        (maybe_set_first_label_num): Declare.
        (init_branch_prob): Move declaration to value-prof.h.
        (end_branch_prob): Ditto.
        (branch_prob): Ditto.
        (never_reached_warning): Don't declare it.
        * rtlanal.c (get_related_value): Initialize get_jump_table_offset
        (hoist_insn_to_edge): Update to match field insns in
        struct edge_def.
        * sbitmap.c (sbitmap_realloc): New.
        * sbitmap.h (sbitmap_realloc): Declare.
        * sibcall.c: Remove file.
        * simplify-rtx.c (simplify_rtx): Do not handle
        CONSTANT_P_RTX.
        * stmt.c (parse_output_constraint): Don't warn for read-write
        memory operand.
        (tail_recursion_args): Use types_compatible_p langhook.
        (force_label_rtx): Don't look at inline_function_decl.
        (label_rtx): Set LABEL_PRESERVE_P appropriately.
        (expand_label): Handle DECL_NONLOCAL and FORCED_LABEL.
        (declare_nonlocal_label): Remove.
        (expand_goto): Don't handle nonlocal gotos.
        (expand_nl_handler_label): Remove.
        (expand_nl_goto_receivers): Remove.
        (expand_end_bindings): Don't expand_nl_goto_receivers.  Use
        update_nonlocal_goto_save_area.
        (expand_expr_stmt_value): Check TREE_NO_WARNING.
        (warn_if_unused_value): Likewise.
        (expand_start_loop, expand_loop_continue_here,
        expand_end_loop): Don't create loop notes.
        (all_cases_count, BITARRAY_TEST, BITARRAY_SET,
        mark_seen_cases, check_for_full_enumeration_handling): Remove.
        (expand_end_case_type): Don't do warn_switch handling.
        (pushcase, pushcase_range) Update add_case_node calls.
        (add_case_node): Add dont_expand_label argument.
        (same_case_target_p): Don't search rtl.
        (expand_start_bindings_and_block, expand_end_bindings):
        Don't emit block notes when dont_emit_block_notes.
        (using_eh_for_cleanups_p): Export.
        (expand_return): Allow any typed rhs.
        (expand_stack_alloc): New.
        (expand_stack_save, expand_stack_restore): New.
        (containing_blocks_have_cleanups_or_stack_level): New
        function.
        (asm_op_is_mem_input): New fn.
        (expand_asm_expr): New fn.
        (warn_if_unused_value): Check operand 0 of SAVE_EXPR
        nodes.
        * stor-layout.c (layout_type): Just return if type is
        error_mark_node.
        (update_alignment_for_field): Export.
        (variable_size): We don't care about global_bindings_p if
        the frontend doesn't want a list of the expressions.
        * system.h: Poison INTEGRATE_THRESHOLD.
        * timevar.def (TV_TREE_GIMPLIFY, TV_TREE_EH, TV_TREE_CFG,
        TV_TREE_CLEANUP_CFG, TV_TREE_PTA, TV_TREE_MAY_ALIAS,
        TV_TREE_INSERT_PHI_NODES, TV_TREE_SSA_REWRITE_BLOCKS,
        TV_TREE_SSA_OTHER, TV_TREE_OPS,
        TV_TREE_SSA_DOMINATOR_OPTS, TV_TREE_SRA, TV_TREE_CCP,
        TV_TREE_SPLIT_EDGES, TV_TREE_PRE, TV_TREE_PHIOPT,
        TV_TREE_FORWPROP, TV_TREE_DCE, TV_TREE_CD_DCE,
        TV_TREE_DSE, TV_TREE_LOOP, TV_TREE_CH,
        TV_TREE_SSA_TO_NORMAL, TV_TREE_SSA_TO_NORMAL,
        TV_TREE_NRV, TV_TREE_COPY_RENAME, TV_TREE_SSA_VERIFY,
        TV_TREE_STMT_VERIFY, TV_DOM_FRONTIERS,
        TV_CONTROL_DEPENDENCES): Define.
        * toplev.c: Include tree-alias-common.h
        (current_file_decl, flag_mudflap, flag_mudflap_threads,
        flag_mudflap_ignore_reads, flag_tree_based_profiling,
        flag_tree_gvn, flag_tree_points_to, flag_tree_ccp,
        flag_tree_dce, flag_tree_ch, flag_tree_sra,
        flag_tree_combine_temps, flag_tree_ter,
        flag_tree_live_range_split, flag_tree_dom,
        flag_tree_copyrename, flag_tree_dse): Declare.
        (f_options): Add tree-based-profiling, tree-gvn,
        tree-pre, tree-ccp, tree-dce,
        tree-dominator-opts, tree-copyrename, tree-dse,
        tree-combine-temps, tree-ter, tree-lrs and tree-ch.
        (wrapup_global_declarations): Don't output nested inlined functions.
        (general_init): Call init_tree_optimization_passes.
        (process_options): Sorry for -ftree-based-profiling plus
        -ftest-coverage or -fprofile-values.
        * toplev.h (init_tree_optimization_passes,
        flag_tree_based_profiling): Declare.
        * tracer.c (tail_duplicate): Use cfghooks for bb duplication.
        * tree-alias-ander.c: New file.
        * tree-alias-ander.h: New file.
        * tree-alias-common.c: New file.
        * tree-alias-common.h: New file.
        * tree-alias-type.c: New file.
        * tree-alias-type.h: New file.
        * tree-browser.c: New file.
        * tree-browser.def: New file.
        * tree-cfg.c: New file.
        * tree-complex.c: New file.
        * tree-dfa.c: New file.
        * tree-dump.c (dump_enable_all): New.
        (dequeue_and_dump): Do not handle EXPR_WITH_FILE_LOCATION.
        (dump_node): Remove const from field suffix and swtch.
        (dump_files): Add null entry, .generic, .nested, .vcg,
        .xml and a match-all entry.
        (extra_dump_files, extra_dump_files_in_use,
        extra_dump_files_alloced): Declare
        (dump_option_value_info): Add raw, details, stats,
        blocks, vops, lineno, uid and all.
        (dump_register): New.
        (get_dump_file_info): New.
        (dump_begin): Call it.
        Do nothing for TDI_none.
        (dump_begin): Include phase number in dump filename.
        (dump_enable_all): New.
        (dump_switch_p_1): Split out from dump_switch_p.
        (dump_switch_p): Handle extra_dump_files.
        Start our scan at TDI_none + 1.
        If -fdump-tree-all was given, call dump_enable_all.
        * tree-dump.h: Include splay-tree.h.
        (dump_function, dump_function_to_file, dump_register):
        Declare.
        * tree-eh.c: New file.
        * tree-flow-inline.h: New file.
        * tree-flow.h: New file.
        * tree-inline.c: Re-write to handle inlining on GIMPLE.
        * tree-inline.h (walk_tree,
        walk_tree_without_duplicates): Move to tree.h.
        (estimate_num_insns): Declare.
        * tree-into-ssa.c: New file.
        * tree-iterator.c: New file.
        * tree-iterator.h: New file.
        * tree-mudflap.c: New file.
        * tree-mudflap.h: New file.
        * tree-nested.c: New file.
        * tree-nomudflap.c: New file.
        * tree-nrv.c: New file.
        * tree-optimize.c (dump_flags, vars_to_rename,
        in_gimple_form, all_passes, pass_gimple,
        pass_rebuild_bind, pass_all_optimizations, pass_del_cfg): Declare.
        (execute_gimple, execute_rebuild_bind,
        gate_all_optimizations, execute_del_cfg,
        register_one_dump_file, register_dump_files, dup_pass_1,
        init_tree_optimization_passes, execute_todo,
        execute_one_pass, execute_pass_list): New.
        (clear_decl_rtl): Remove.
        (tree_rest_of_compilation): Update to use tree
        optimizers.
        * tree-outof-ssa.c: New file.
        * tree-pass.h: New file.
        * tree-phinodes.c: New file.
        * tree-pretty-print.c: New file.
        * tree-profile.c: New file.
        * tree-simple.c: New file.
        * tree-simple.h: New file.
        * tree-sra.c: New file.
        * tree-ssa-alias.c: New file.
        * tree-ssa-ccp.c: New file.
        * tree-ssa-copy.c: New file.
        * tree-ssa-copyrename.c: New file.
        * tree-ssa-dce.c: New file.
        * tree-ssa-dom.c: New file.
        * tree-ssa-dse.c: New file.
        * tree-ssa-forwprop.c: New file.
        * tree-ssa-live.c: New file.
        * tree-ssa-live.h: New file.
        * tree-ssa-loop.c: New file.
        * tree-ssa-operands.c: New file.
        * tree-ssa-operands.h: New file.
        * tree-ssa-phiopt.c: New file.
        * tree-ssa-pre.c: New file.
        * tree-ssa.c: New file.
        * tree-ssanames.c: New file.
        * tree-tailcall.c: New file.
        * tree.c: Include tree-iterator.h, basic-block.h and
        tree-flow.h.
        (tree_node_kind): Add phi_nodes and ssa names.
        (tree_size): Handle PHI_NODE, EPHI_NODE, SSA_NAME,
        EUSE_NODE, EKILL_NODE, EEXIT_NODE and STATEMENT_LIST.
        (make_node_stat): Handle PHI_NODE and SSA_NAME.
        <'c'> Set TREE_INVARIANT.
        (copy_node_stat): Abort if trying to copy a
        STATEMENT_LIST.
        Clear TREE_VISITED.
        Clear annotation field.
        (build_constructor): Copy TREE_INVARIANT from vals.
        Don't clear TREE_CONSTANT.
        (expr_first, expr_last, expr_length): Remove.
        (staticp): Pass unknown component references to the language.
        (save_expr): Check TREE_INVARIANT instead of TREE_CONSTANT.
        (skip_simple_arithmetic): Likewise.
        (stabilize_reference_1): Likewise.
        (tree_node_structure): Handle PHI_NODE, EPHI_NODE,
        EUSE_NODE, EKILL_NODE, EEXIT_NODE, SSA_NAME and
        STATEMENT_LIST.
        (lhd_unsave_expr_now): Remove.
        (unsafe_for_reeval): Handle LABEL_EXPR and BIND_EXPR.
        (recompute_tree_invarant_for_addr_expr): New.
        (build1_stat): Clear EXPR_LOCUS and TREE_BLOCK.
        Call recompute_tree_invarant_for_addr_expr.
        Set TREE_INVARIANT accordingly.
        (build2_stat): Don't handle CALL_EXPR.
        (build3_stat): Don't call build2_stat for CALL_EXPRs.
        (build_expr_wfl): Remove.
        (annotate_with_file_line, annotate_with_locus): New.
        (simple_cst_equal): Call simple_cst_list_equal to compare
        CONSTRUCTOR_ELTS pointers.
        (iterative_hash_expr): Don't hash types associated
        with conversions.  Instead hash on the signedness of the
        toplevel object and the operand of the conversion.
        (dump_tree_statistics): Call ssanames_print_statistics
        and phinodes_print_statistics.
        (ephi_node_elt_check_failed, phi_node_elt_check_failed,
        add_var_to_bind_expr, build_empty_stmt, is_essa_node,
        needs_to_live_in_memory): New.
        (initializer_zerop): Handle VECTOR_CST.  Don't check
        AGGREGATE_TYPE_P for CONSTRUCTOR.
        * tree.def (FILTER_EXPR, CASE_LABEL_EXPR, RESX_EXPR,
        SSA_NAME, EUSE_NODE, EKILL_NODE, EPHI_NODE, EEXIT_NODE,
        PHI_NODE, CATCH_EXPR, EH_FILTER_EXPR, STATEMENT_LIST): Define.
        (GOTO_SUBROUTINE_EXPR): Change type to 's'.
        (CALL_EXPR): Add another operand.
        (EXPR_WITH_FILE_LOCATION): Remove.
        (SWITCH_EXPR): Add another operand.
        * tree.h: Update various comments.
        (union tree_ann_d): Forward declare.
        (struct tree_common): Add fields nowarning_flag,
        invariant_flag and visited.
        (EREF_NODE_CHECK, EPHI_NODE_ELT_CHECK,
        PHI_NODE_ELT_CHECK, EREF_NODE_CHECK, PHI_NODE_ELT_CHECK,
        EPHI_NODE_ELT_CHECK, TREE_BLOCK,
        STRIP_USELESS_TYPE_CONVERSION, CALL_EXPR_TAILCALL,
        TREE_NO_WARNING, FORCED_LABEL, TREE_INVARIANT,
        IS_EMPTY_STMT, EXPR_LOCUS, SET_EXPR_LOCUS, EXPR_FILENAME,
        EXPR_LINENO, EXPR_LOCATION, EXPR_HAS_LOCATION,
        EXIT_EXPR_COND, SWITCH_COND, SWITCH_BODY, SWITCH_LABELS,
        CASE_LOW, CASE_HIGH, CASE_LABEL, BIND_EXPR_VARS,
        BIND_EXPR_BODY, BIND_EXPR_BLOCK, GOTO_DESTINATION,
        ASM_STRING, ASM_OUTPUTS, ASM_INPUTS, ASM_CLOBBERS,
        ASM_INPUT_P, ASM_VOLATILE_P, COND_EXPR_COND,
        COND_EXPR_THEN, COND_EXPR_ELSE, LABEL_EXPR_LABEL,
        CATCH_TYPES, CATCH_BODY, EH_FILTER_TYPES,
        EH_FILTER_FAILURE, EH_FILTER_MUST_NOT_THROW,
        SSA_NAME_VAR, SSA_NAME_DEF_STMT, SSA_NAME_VERSION,
        SSA_NAME_OCCURS_IN_ABNORMAL_PHI, SSA_NAME_IN_FREE_LIST,
        PHI_RESULT, PHI_REWRITTEN, PHI_NUM_ARGS,
        PHI_ARG_CAPACITY, PHI_ARG_ELT, PHI_ARG_EDGE, PHI_ARG_DEF,
        EREF_PROCESSED, EREF_ID, EREF_NAME, EREF_STMT,
        EREF_RELOAD, EREF_SAVE, EREF_CLASS, EREF_INJURED,
        EREF_TEMP, EUSE_DEF, EUSE_PHIOP, EUSE_INSERTED,
        EUSE_LVAL, EPHI_NUM_ARGS, EPHI_ARG_CAPACITY,
        EPHI_ARG_ELT, EPHI_ARG_EDGE, EPHI_ARG_PRED, EPHI_ARG_DEF,
        EPHI_ARG_INJURED, EPHI_ARG_DELAYED_RENAME,
        EPHI_ARG_HAS_REAL_USE, EPHI_ARG_STOPS,
        EPHI_ARG_PROCESSED2, EPHI_IDENTITY, EPHI_IDENT_INJURED,
        EPHI_REP_OCCUR_KNOWN, EPHI_IDENTICAL_TO, EPHI_DOWNSAFE,
        EPHI_CANT_BE_AVAIL, EPHI_DEAD, EPHI_USES, EPHI_STOPS,
        TREE_VISITED, SSA_VAR_P, DECL_NUM_STMTS,
        DECL_HARD_REGISTER, DECL_PTA_ALIASVAR, LABEL_DECL_UID,
        DECL_NEEDS_TO_LIVE_IN_MEMORY_INTERNAL,
        STATEMENT_LIST_HEAD, STATEMENT_LIST_TAIL, TDF_RAW,
        TDF_DETAILS, TDF_STATS, TDF_BLOCKS, TDF_VOPS, TDF_LINENO,
        TDF_UID,): Define.
        (TREE_NO_UNUSED_WARNING, EXPR_WFL_EMIT_LINE_NOTE,
        EXPR_WFL_NODE, EXPR_WFL_FILENAME_NODE, EXPR_WFL_FILENAME,
        EXPR_WFL_LINECOL, EXPR_WFL_LINENO, EXPR_WFL_COLNO,
        EXPR_WFL_SET_LINECOL): Remove.
        (phi_node_elt_check_failed, ephi_node_elt_check_failed,
        make_phi_node, init_phinodes, fini_phinodes,
        release_phi_node, phinodes_print_statistics,
        init_ssanames, fini_ssanames, make_ssa_name,
        release_ssa_name, ssanames_print_statistics,
        annotate_with_file_line, build_empty_stmt,
        annotate_with_locus, expr_only, categorize_ctor_elements,
        count_type_elements, add_var_to_bind_expr, is_essa_node,
        expand_stack_alloc, expand_stack_save,
        expand_stack_restore, add_case_node, operand_equal_p,
        nondestructive_fold_unary_to_constant,
        nondestructive_fold_binary_to_constant,
        fold_read_from_constant_string, int_const_binop,
        strip_float_extensions, simplify_builtin, c_strlen,
        recompute_tree_invarant_for_addr_expr,
        needs_to_live_in_memory, make_vector,
        setjmp_vars_warning, update_alignment_for_field,
        expand_asm_expr, asm_op_is_mem_input,
        containing_blocks_have_cleanups_or_stack_level,
        create_artificial_label, gimplify_function_tree,
        get_name, unshare_expr, walk_tree,
        walk_tree_without_duplicates, in_gimple_form): Declare.
        (struct tree_exp): Add fields locus and block.
        (struct tree_ssa_name, struct edge_def, struct
        tree_phi_node, struct tree_eref_common, struct
        tree_euse_node, struct ephi_arg_d, struct tree_ephi_node,
        union alias_var_def, struct tree_statement_list_node,
        struct tree_statement_list, enum operand_equal_flag): Declare.
        (enum tree_node_structure_enum): Add TS_SSA_NAME,
        TS_PHI_NODE, TS_EPHI_NODE, TS_EUSE_NODE, TS_EREF_NODE,
        TS_STATEMENT_LIST.
        (union tree_node): Add fields ssa_name, phi, eref, ephi,
        euse and stmt_list.
        (function_cannot_inline_p, uninitialized_vars_warning,
        save_for_inline, output_inline_function, all_cases_count,
        check_for_full_enumeration_handling,
        declare_nonlocal_label): Remove.
        (enum tree_dump_index): Add TDI_none, TDI_tu,
        TDI_generic, TDI_nested, TDI_vcg, TDI_xml.
        * unroll.c (unroll_loop): Don't clear map->inline_target.
        * unwind-sjlj.c (uw_install_context): Make a proper static inline
        function.
        * value-prof.c (value_prof_hooks): New.
        (find_values_to_profile): Rename to rtl_find_values_to_profile.
        Move rtl-specific bits in from branch_prob.
        (value_profile_transformations): Rename to
        rtl_value_profile_transformations.
        (struct value_prof_hooks): New.
        (rtl_value_prof_hooks): New.
        (rtl_register_value_prof_hooks): New.
        (tree_find_values_to_profile): New stub.
        (tree_value_profile_transformations): New stub.
        (tree_value_prof_hooks): New stub.
        (tree_register_value_prof_hooks): New stub.
        (find_values_to_profile): New.
        (value_profile_transformations): New.
        * value-prof.h: Add multiple inclusion guard.
        (struct histogram_value): Change rtx fields to void *.
        (rtl_register_value_prof_hooks): New declaration.
        (tree_register_value_prof_hooks): New declaration.
        (find_values_to_profile): New declaration.
        (free_profiled_values): New declaration.
        (value_profile_transformations): New declaration.
        (struct profile_hooks): New declaration.
        (init_branch_prob): Declaration moved from rtl.h.
        (branch_prob): Declaration moved from rtl.h.
        (end_branch_prob): Declaration mooved from rtl.h.
        (tree_register_profile_hooks): New declaration.
        (rtl_register_profile_hooks): New declaration.
        (tree_profile_hooks): New declaration.
        (rtl_profile_hooks): New declaration.
        * varasm.c: Include tree-mudflap.h.
        (TRAMPOLINE_ALIGNMENT): Remove.
        (make_decl_rtl): Call mudflap_enqueue_decl.
        (assemble_static_space):
        (assemble_trampoline_template): Set and return
        TRAMPOLINE_ALIGNMENT.
        * varray.c (element): Add GENERIC_PTR_NOGC entry.
        Add entry for 'tree *'.
        Add entry for struct edge_def *.
        (varray_copy): New.
        * varray.h (enum varray_data_enum): Add
        VARRAY_DATA_GENERIC_NOGC, VARRAY_DATA_EDGE and
        VARRAY_DATA_TREE_PTR.
        (union varray_data_tag): Corresponding changes.
        (VARRAY_GENERIC_PTR_NOGC_INIT, VARRAY_EDGE_INIT,
        VARRAY_TREE_PTR_INIT, VARRAY_GENERIC_PTR_NOGC,
        VARRAY_EDGE, VARRAY_TREE_PTR,
        VARRAY_PUSH_GENERIC_PTR_NOGC, VARRAY_PUSH_EDGE,
        VARRAY_PUSH_TREE_PTR, VARRAY_TOP_GENERIC_PTR_NOGC,
        VARRAY_TOP_EDGE, VARRAY_TOP_TREE_PTR): Define.

        * config/*/*: Various updates for changed macros, tree
        codes, etc.  Check ChangeLog.tree-ssa.

        * doc/cfg.texi: New file.
        * doc/tree-ssa.texi: New file.
        * doc/c-tree.texi: Document new codes.
        * doc/gccint.texi: Include new files.
        * doc/install.texi: Document new features.
        * doc/invoke.texi: Document new switches.
        * doc/passes.texi: Document new passes.
        * doc/rtl.texi: Update changed RTL codes.
        * doc/sourcebuild.texi: Update build instructions.
        * doc/standards.texi: Document Fortran changes.
        * doc/tm.texi: Update.

2004-05-12  Paolo Bonzini  <bonzini@gnu.org>

        Replace several arrays with a struct of arrays.
        * combine.c (struct reg_stat): New.
        (init_reg_last_arrays): Renamed to...
        (init_reg_last): ...this.  Callers adjusted.
        (reg_stat): New.
        (combine_instructions): Allocate it and use it.
        (reg_last_death, reg_last_set, reg_last_set_value,
        reg_last_set_label, reg_last_set_table_tick,
        reg_last_set_invalid, reg_nonzero_bits, reg_sign_bit_copies,
        reg_last_set_mode, reg_last_set_nonzero_bits,
        reg_last_set_sign_bit_copies): Replace throughout
        with items of reg_stat.

2004-05-11  Kaz Kojima  <kkojima@gcc.gnu.org>

        PR optimization/15100
        * combine.c (distribute_notes): Don't create a dangling
        REG_LIBCALL/REG_RETVAL note.

2004-05-11  Aldy Hernandez  <aldyh@redhat.com>

        * config/rs6000/spe.md (spe_evneg): Rename to negv2si2.

        * config/rs6000/rs6000.c (bdesc_1arg): Change spe_evneg to
        negv2si2.

2004-05-11  Aldy Hernandez  <aldyh@redhat.com>

        * doc/md.texi (Standard Names): Fix typo in vec_init description.

2004-05-11  Geoffrey Keating  <geoffk@apple.com>

        * doc/gty.texi (GTY Options): Clarify example.

2004-05-11  Fariborz Jahanian  <fjahanian@apple.com>

        * config/rs6000/rs6000.c (rs6000_handle_altivec_attribute):
        Add const qualifier to altivec vector type if one is needed.

2004-05-11  Paul Brook  <paul@codesourcery.com>

        * flags.h (flag_short_enums): Update comment.
        * opts.c (decode_options): Set flag_short_enums to 2.
        * toplev.c (flag_short_enums): Update comment.
        (process_options): Call default_short_enums target hook.

2004-05-11  Andrew Pinski  <pinskia@gcc.gnu.org>

        PR target/14063
        * config/rs6000/altivec.md (altivec_dssall):
        Change to unspec_volatile.
        (altivec_dss): Likewise.

2004-05-10  Aldy Hernandez  <aldyh@redhat.com>

        * config/rs6000/altivec.md ("one_cmplv16qi2"): Change vnot to
        vnor.
        ("one_cmplv8hi2"): Same.
        ("one_cmplv4si2"): Same.

2004-05-10  Kaz Kojima  <kkojima@gcc.gnu.org>

        PR target/15130
        * config/sh/sh-protos.h (sh_expand_epilogue): Change prototype.
        * config/sh/sh.c (output_stack_adjust): Take the sibcall epilogue
        into account.  Compute the correct number of general registers
        for the return value.  Generate a special push/pop sequence when
        failing to get a temporary register for non SHmedia epilogue.
        (sh_expand_epilogue): Add an argument to show whether it's for
        sibcall or not.  Set the 3rd argument of output_stack_adjust to
        -1 if needed.
        (sh_need_epilogue): Call sh_expand_epilogue with 0.
        * config/sh/sh.md (sibcall_epilogue): Call sh_expand_epilogue
        with 1.
        (epilogue): Call sh_expand_epilogue with 0.

2004-05-10  Andrew Pinski  <pinskia@physics.uc.edu>

        * gcse.c (eliminate_partially_redundant_loads): Instead of returning early,
        goto a cleanup label.  After the cleanup, free the allocated memory.

2004-05-10  Ziemowit Laski  <zlaski@apple.com>

        * config/rs6000/altivec.h (vec_sld): Add overloads for
        argument/return types of 'vector bool int', 'vector bool short'
        and 'vector bool char'.

2004-05-10  Zack Weinberg  <zack@codesourcery.com>

        * c-decl.c (store_parm_decls_newstyle): Correct test for a
        nested function.

2004-05-10  Richard Sandiford  <rsandifo@redhat.com>

        * read-rtl.c (read_rtx): Allow 's' and 'T' strings to be omitted,
        treating missing ones as "".
        * config/mips/mips.md: Remove constraints from match_operands and
        match_scratches if they appear in define_expands (except reload*),
        define_peephole2s, define_splits or attribute specifications.
        * config/mips/7000.md, config/mips/sb1.md: Remove match_operand
        constraint strings.

2004-05-10  Alan Modra  <amodra@bigpond.net.au>

        * config/rs6000/rs6000.c (function_arg_boundary): Always align
        AltiVec vectors.
        (function_arg_advance): Pass TARGET_32BIT -mabi=no-altivec AltiVec
        vectors by refererence.  Align the same for TARGET_64BIT to a 16
        byte boundary.  Remove useless code.  Add function comment.
        (function_arg): Similarly.  Move gpr rs6000_mixed_function_arg
        call to where it belongs.
        (function_arg_partial_nregs): Return true for all TARGET_32BIT
        -mabi=no-altivec AltiVec vectors.  Fix debug output.
        (rs6000_va_arg): Adjust for AltiVec change.

2004-05-10  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.c (arm_promote_prototypes): Use TARGET_AAPCS_BASED.
        * config/arm/arm.h (TARGET_AAPCS_BASED): Define.
        (TARGET_DOUBLEWORD_ALIGN): Use it.
        (WCHAR_TYPE): Define.
        (WCHAR_SIZE_TYPE): Define.
        (SIZE_TYPE): Define.

2004-05-10  Alan Modra  <amodra@bigpond.net.au>

        * config/rs6000/rs6000.c (function_arg_boundary): Align for ABI_V4
        when size is 8 bytes.
        (function_arg_advance): Account for stack space used by AltiVec
        args when -mabi=altivec.  Simplify alignment calculations.  For
        ABI_V4, pass AltiVec vectors by reference when -mabi=no-altivec.
        (function_arg): Similarly.
        (function_arg_pass_by_reference): True for ABI_V4 AltiVec when
        not AltiVec ABI.
        (rs6000_va_arg): Correct fp arg test.  Adjust for AltiVec change.
        Correct alignment, and align before testing reg count.  Remove
        TREE_THIS_VOLATILE from reg.  Don't emit unused labels.
        (rs6000_complex_function_value): Check TARGET_HARD_FLOAT and
        TARGET_FPRS here..
        (rs6000_function_value): .. not here before call.

2004-05-09  Aldy Hernandez  <aldyh@redhat.com>

        * config/rs6000/spe.md ("tstsflt_gpr"): Fix typo in unspec.

2004-05-09  Zack Weinberg  <zack@codesourcery.com>

        PR 15007
        * c-decl.c (current_file_decl): Rename to all_translation_units,
        adjust comment.
        (pop_scope): If popping file_scope, construct a
        TRANSLATION_UNIT_DECL and make it the context of all the
        symbols in the scope.
        (push_file_scope): Don't construct a TRANSLATION_UNIT_DECL here.
        (pushdecl): Clarify comment.  Do not set DECL_CONTEXT of
        anything to current_file_decl.
        (pushdecl_top_level): Likewise.
        (store_parm_decls_newstyle): Adjust check for nested function.
        (c_write_global_declarations): Update for renamed variable.

2004-05-09  Aldy Hernandez  <aldyh@redhat.com>

        * config/rs6000/rs6000-protos.h
        (rs6000_conditional_register_usage): Protoize.

        * config/rs6000/rs6000.c (rs6000_conditional_register_usage): New.

        * config/rs6000/rs6000.h (CONDITIONAL_REGISTER_USAGE): Call
        function.

2004-05-08  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (fold_div_compare): New function to optimize X/C1 op C2
        where op is a comparison operator and C1 and C2 are integer constants
        into a range check.
        (fold): Call fold_div_compare.

2004-05-08  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * doc/install.texi (sparc-sun-solaris2*): Document bootstrap
        problems with earlier versions of the GNU compiler.

2004-05-07  Aldy Hernandez  <aldyh@redhat.com>

        * config/rs6000/rs6000-protos.h (rs6000_hard_regno_mode_ok_p):
        Declare.

        * config/rs6000/rs6000.c (rs6000_hard_regno_mode_ok_p): New.
        (rs6000_hard_regno_mode_ok): New.
        (rs6000_init_hard_regno_mode_ok): New.
        (rs6000_override_options): Call rs6000_init_hard_regno_mode_ok.

        * config/rs6000/rs6000.h (HARD_REGNO_NREGS): Use precomputed
        result.

2004-05-07  Ziemowit Laski  <zlaski@apple.com>

        * config/rs6000/altivec.h (vector, pixel, bool): Do not
        define as macros #ifdef __APPLE_ALTIVEC__.

2004-05-07  Fariborz Jahanian  <fjahanian@apple.com>

        * config/rs6000/rs6000.c (rs6000_mixed_function_arg):
        Generate appropriate parallels for vector arguments
        passed to vararg functions. (function_arg): make the call
        to rs6000_mixed_function_arg for vector args as needed.

2004-05-07  Richard Sandiford  <rsandifo@redhat.com>

        * config/mips/mips.c (mips_va_arg): Fix calculation of osize for
        EABI_FLOAT_VARARGS_P.

2004-05-07  Richard Sandiford  <rsandifo@redhat.com>

        * config/mips/mips.h (ISA_HAS_BRANCHLIKELY): Remove TARGET_MIPS5500.
        * config/mips/mips.c (override_options): Disable branch likely
        instructions if TUNE_MIPS5500.

2004-05-07  Richard Sandiford  <rsandifo@redhat.com>

        * config/mips/mips.c (override_options): Allow the hi and lo registers
        to store any integral mode, not just MODE_INTs.

2004-05-07  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.c (arm_promote_prototypes): Use TARGET_AAPCS_BASED.
        * config/arm/arm.h (TARGET_AAPCS_BASED): Define.
        (TARGET_DOUBLEWORD_ALIGN): Use it.
        (WCHAR_TYPE): Define.
        (WCHAR_SIZE_TYPE): Define.
        (SIZE_TYPE): Define.

2004-05-07  Uros Bizjak  <uros@kss-loka.si>

        * config/i386/i386.c (ix86_emit_fp_unordered_jump): Use
        testb $4, %ah insn instead of sahf insn if !TARGET_USE_SAHF.

2004-05-07  Andrew Pinski  <pinskia@physics.uc.edu>

        * loop-doloop.c (doloop_valid_p): Make sure that body
        gets freed.

2004-05-07  Eric Botcazou  <ebotcazou@act-europe.fr>

        * config/sparc/sparc-protos.h (sparc_skip_caller_unimp): New
        declaration.
        * config/sparc/sparc.c (SKIP_CALLERS_UNIMP_P): Delete.
        (sparc_skip_caller_unimp): New global variable.
        (sparc_function_epilogue): Set 'sparc_skip_caller_unimp'.
        Use it instead of SKIP_CALLERS_UNIMP_P.
        * config/sparc/sparc.md (call expander): Add sanity check.
        (call_address_struct_value_sp32): Re-sync with expander.
        (call_symbolic_struct_value_sp32): Likewise.
        (return peepholes): Use 'sparc_skip_caller_unimp' instead
        of custom predicate.

2004-05-07  Eric Botcazou  <ebotcazou@libertysurf.fr>

        PR c++/14962
        * c-pragma.c (handle_pragma_redefine_extname): Only change
        the assembler name of FUNCTION_DECLs and VAR_DECLs.

2004-05-07  Uros Bizjak  <uros@kss-loka.si>

        * optabs.h (enum optab_index): Add new OTI_log1p.
        (log1p_optab): Define corresponding macro.
        * optabs.c (init_optabs): Initialize log1p_optab.
        * genopinit.c (optabs): Implement log1p_optab using log1p?f2
        patterns.
        * builtins.c (expand_builtin_mathfn): Handle BUILT_IN_LOG1P{,F,L}
        using log1p_optab.
        (expand_builtin): Expand BUILT_IN_LOG1P{,F,L} using
        expand_builtin_mathfn if flag_unsafe_math_optimizations is set.

        * reg-stack.c (subst_stack_regs_pat): Handle UNSPEC_FYL2XP1.

        * config/i386/i386.c (ix86_emit_i387_log1p): New function.
        * config/i386/i386-protos.h (ix86_emit_i387_log1p):
        Prototype here.
        * config/i386/i386.md (UNSPEC_FYL2XP1): New unspec to represent
        x87's fyl2xp1 instruction.
        (*fyl2x_xf3): Rename insn definition to fyl2x_xf3.
        (fyl2xp1_xf3): New pattern to implement fyl2xp1 x87 instruction.
        (log1psf2, log1pdf2, log1pxf2): New expanders to implement log1pf,
        log1p  and log1pl built-ins as inline x87 intrinsics.

2004-05-07  Loren James Rittle  <ljrittle@acm.org>

        * config/alpha/freebsd.h (SUBTARGET_EXTRA_SPECS): Proper redefinition.
        * config/arm/freebsd.h: Likewise.
        * config/ia64/freebsd.h: Likewise.
        * config/sparc/freebsd.h: Likewise.

2004-05-07  Hans-Peter Nilsson  <hp@axis.com>

        PR optimization/15296
        * reorg.c (fill_simple_delay_slots): Use next_real_insn when
        getting last consecutive label at a branch.
        (relax_delay_slots): Similar, near top of loop.

2004-05-06  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR target/15202
        * pa.md (movdi, movsi, movhi, movqi): Support move from shift amount
        register to general register.

2004-05-07  Alan Modra  <amodra@bigpond.net.au>

        * config/rs6000/rs6000.h (STACK_BOUNDARY): Use 128 bit for either
        TARGET_ALTIVEC or TARGET_ALTIVEC_ABI.
        * config/rs6000/sysv4.h (ABI_STACK_BOUNDARY): Likewise.
        (STACK_BOUNDARY): Delete.

2004-05-06  Stuart Hastings  <stuart@apple.com>

        * gcc/doc/invoke.texi: Restore -fgcse-after-reload doc from 1.421,
        mistakenly clobbered by 1.423.

2004-05-06  Richard Sandiford  <rsandifo@redhat.com>

        * doc/invoke.texi: Document -mvr4130-align.
        * config/mips/mips.h (MASK_VR4130_ALIGN, TARGET_VR4130_ALIGN)
        (TUNE_MIPS4120, TUNE_MIPS4130): New macros.
        (TUNE_MACC_CHAINS): Include TUNE_MIPS4120 and TUNE_MIPS4130.
        (TARGET_SWITCHES): Add -mvr4130-align and -mno-vr4130-align.
        * config/mips/mips.md: Include sched-int.h.
        (USEFUL_INSN_P, SEQ_BEGIN, SEQ_END, FOR_EACH_SUBINSN): New macros.
        (mips_rtx_costs): Set integer multiplication costs for TUNE_MIPS4130.
        (override_options): Enable -mvr4130-align at -O3 and above.
        (mips_sim_insn): New variable.
        (mips_sim): New structure.
        (mips_sim_reset, mips_sim_init, mips_sim_next_cycle, mips_sim_wait_reg)
        (mips_sim_wait_regs_2, mips_sim_wait_regs_1, mips_sim_wait_regs)
        (mips_sim_wait_units, mips_sim_wait_insn, mips_sim_record_set)
        (mips_sim_issue_insn, mips_sim_issue_nop, mips_sim_finish_insn)
        (vr4130_avoid_branch_rt_conflict, vr4130_align_insns): New functions.
        (mips_reorg): Call vr4130_align_insns.
        (vr4130_last_insn): New variable.
        (vr4130_true_reg_dependence_p_1, vr4130_true_reg_dependence_p)
        (vr4130_swap_insns_p, vr4130_reorder): New functions.
        (mips_sched_reorder, mips_variable_issue): Hook in vr4130 code.
        (mips_issue_rate): Return 2 for PROCESSOR_R4130.
        (mips_use_dfa_pipeline_interface): Return true for the same.
        * config/mips/4130.md: New file.
        * config/mips/mips.md: Include it.  Add a peephole2 to convert
        "mult;mflo" into "mtlo;macc".
        (*macc, *umul_acc_di, *smul_acc_di): Use $1 rather than $0 as the
        target of maccs.
        (*msac_using_macc): New pattern.

2004-05-06  Richard Sandiford  <rsandifo@redhat.com>

        * config/mips/5500.md (ir_vr55_store): Set latency to 0.
        (ir_vr55_hilo): Split into...
        (ir_vr55_mfhilo, ir_vr55_mthilo): ...these new reservations.
        (ir_vr55_imul_si, ir_vr55_imadd): Change latency to 5.
        (ir_vr55_imul_di): Change latency to 9.  Reserve vr55_mac for 4 cycles.
        Add various multiplication bypasses.
        * config/mips/mips.c (mips_rtx_costs): Adjust VR5500 costs for integer
        multiplication.

2004-05-06  Uros Bizjak  <uros@kss-loka.si>

        * config/i386/i386.md (*fscalexf4): Correct insn "mode"
        attribute to "XF".

2004-05-05  Uros Bizjak  <uros@kss-loka.si>

        * optabs.h (enum optab_index): Add new OTI_fmod and OTI_drem.
        (fmod_optab, drem_optab): Define corresponding macros.
        * optabs.c (init_optabs): Initialize fmod_optab and drem_optab.
        * genopinit.c (optabs): Implement fmod_optab and drem_optab
        using fmod?f3 and drem?f3 patterns.
        * builtins.c (expand_builtin_mathfn_2): Handle BUILT_IN_FMOD{,F,L}
        using fmod_optab and BUILT_IN_DREM{,F,L} using drem_optab.
        (expand_builtin): Expand BUILT_IN_FMOD{,F,L} and
        BUILT_IN_DREM{,F,L} using expand_builtin_mathfn_2 if
        flag_unsafe_math_optimizations is set.

        * reg-stack.c (subst_stack_regs_pat): Handle UNSPEC_FPREM_F,
        UNSPEC_FPREM_U, UNSPEC_FPREM1_F and UNSPEC_FPREM1_U.

        * config/i386/i386.c (ix86_emit_fp_unordered_jump): New function.
        * config/i386/i386-protos.h (ix86_emit_fp_unordered_jump):
        Prototype here.
        * config/i386/i386.md (UNSPEC_FPREM_F, UNSPEC_FPREM_U,
        UNSPEC_FPREM1_F, UNSPEC_FPREM1_U): New unspecs to represent x87's
        fprem and fprem1 instructions.
        (*x86_fnstsw_1): Change input parameter to (reg:CCFP 18).
        Rename insn definition to x86_fnstsw_1.
        (fpremxf4, fprem1xf4): New patterns to implement fprem and fprem1
        x87 instructions.
        (fmodsf3, fmoddf3, fmodxf3): New expanders to implement fmodf, fmod
        and fmodl built-ins as inline x87 intrinsics.
        (dremsf3, dremdf3, dremxf3): New expanders to implement dremf, drem
        and dreml built-ins as inline x87 intrinsics.

2004-05-05  Roger Sayle  <roger@eyesopen.com>

        * reload1.c (inherit_piecemeal_p): Mark parameters potentially unused.

2004-05-05  Ian Lance Taylor  <ian@wasabisystems.com>

        PR driver/9822
        * doc/invoke.texi (Spec Files): Remove documentation of %c.

2004-05-05  Chris Demetriou  <cgd@broadcom.com>

        * config/mips/mips.md: Update the msub define_split for new mflo/mfhi
        representation.

2004-05-06  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm-protots.h (vfp_mem_operand): Rename ...
        (arm_coproc_mem_operand): ... To this.
        * config/arm/arm.c (arm_legitimate_address_p): Allow ldrd modes.
        (arm_legitimate_index_p): Ditto.
        (vfp_mem_operand): Rename ...
        (arm_coproc_mem_operand): ... To this.  Handle writeback modes.
        (vfp_secondary_reload_class): Use it.
        (output_move_double): Use doubleword load/store instructions.
        (arm_hard_regno_mode_ok): Only allow even reg pairs for ldrd.
        * config/arm/arm.h (TARGET_LDRD): Define.
        (EXTRA_CONSTRAINT_STR_ARM): Add 'Uy'.
        * config/gcc/arm/arm.md (arm_movdi): Allow all valid memory operands.
        New splitter for invalid doubleword loads.
        * config/arm/iwmmxt.md (iwmmxt_arm_movdi): Use Uy constraint.
        * config/arm/vfp.md (arm_movdi_vfp): Allow all valid memory operands.
        * doc/md.texi: Document Uy constraint.

2004-05-05  Jan Hubicka  <jh@suse.cz>

        PR opt/14980
        * cgraphunit.c (cgraph_remove_unreachable_nodes): Deal properly with
        inline clones.

2004-05-05  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/15290
        * config/i386/i386.c (ix86_split_to_parts): Use real_to_target
        instead of REAL_VALUE_TO_TARGET_LONG_DOUBLE.

2004-05-05  Mike Stump  <mrs@apple.com>

        * config/darwin-c.c (add_framework): Copy the directory name as it
        can be freed later.  Also, ensure we always allocate enough room
        for the cached framework information.
        (find_subframework_header): Keep track of the directory where the
        subframework header was found.
        (framework_construct_pathname): Speed up by not trying to re-add a
        framework.
        * cppfiles.c (search_path_exhausted): Arrange for the missing
        header callback to be able to set the directory where the header
        was found.
        (cpp_get_dir): Add.
        * cpplib.h (missing_header_cb): Add a parameter.
        (cpp_get_dir): Add.

2004-05-03  Mike Stump  <mrs@apple.com>

        * doc/invoke.texi (Directory Options): Document -iquote.
        * doc/cpp.texi: Likewise.
        * doc/cppopts.texi: Likewise.
        * c-opts.c (c_common_missing_argument): Add -iquote processing.
        (c_common_handle_option): Likewise.
        * c.opt (iquote): Add.
        * gcc.h (DEFAULT_WORD_SWITCH_TAKES_ARG): Add -iquote.
        * c-incpath.c (merge_include_chains): Update comment to use -iquote.

        * c-opts.c (case OPT_I): Deprecate -I- support.
        * doc/invoke.texi: Likewise.
        * doc/cpp.texi: Likewise.
        * doc/cppopts.texi: Likewise.

2004-05-05  Steven Bosscher  <stevenb@suse.de>

        * basic-block.h (free_basic_block_vars): Update prototype.
        * flow.c (free_basic_block_vars): Remove the keep_head_end_p
        argument.
        (life_analysis): Update call.
        * ifcvt.c (if_convert): Likewise.
        * sibcall.c (optimize_sibling_and_tail_recursive_call): Likewise.
        * passes.c (rest_of_handle_final): Likewise.
        (rest_of_compilation): Likewise.
        * config/sh/sh.c (sh_output_mi_thunk): Likewise.

        * emit-rtl.c (next_real_insn): Use INSN_P.
        (prev_real_insn): Likewise.

2004-05-05  Eric Christopher  <echristo@redhat.com>

        * config/mips/mips.md: Update the madd define_split for new mflo/mfhi
        representation.

2004-05-05  Paolo Bonzini  <bonzini@gnu.org>

        * config/rs6000/rs6000.c (build_opaque_vector_type):
        New function.
        (rs6000_init_builtins): Use it.

2004-05-04  Bernard Giroud  <bgiroud2@free.fr>

        * gcc/gcc/vmsdbgout.c (vms_func_node, vms_func_ref): New.
        (func_table): Change type from char ** to vms_func_ref.
        (write_rtnbeg):  Update to reflect func_table change.  Use
        fde->funcdef_number instead of rtnnum in output.
        (write_rtnend, vmxdbgout_begin_function, vmsdbgout_init): Likewise.

2004-05-04  Paolo Bonzini  <bonzini@gnu.org>
            Richard Henderson  <rth@redhat.com>

        PR target/14899

        * c-common.c (vector_types_convertible_p): New function.
        * c-typeck.c (comptypes): Recurse on vector types.
        (convert_for_assignment): Use vector_types_convertible_p.
        (digest_init): Use vector_types_convertible_p to check
        validness of constant vector initializers; otherwise treat
        them as scalars.
        * tree.c (make_or_reuse_type): New.
        (build_common_tree_nodes): Use it.
        * cp/call.c (standard_conversion): Likewise.
        * cp/typeck.c (comptypes): Recurse on vector types.
        (convert_for_assignment): Use vector_types_convertible_p.

2004-05-04  Chris Demetriou  <cgd@broadcom.com>

        * config/mips/mips.c (override_options): Default to no
        generation of branch-likely operations when tuning for
        CPUs where they tend to have a negative performance impact
        (e.g., SB-1).

2004-05-04  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * expr.c (store_constructor_field): Don't call store_constructor
        if bitsize is not a multiple of a byte.

2004-05-04  Richard Sandiford  <rsandifo@redhat.com>

        * reload1.c (inherit_piecemeal_p): New function.
        (emit_reload_insns): When reloading a group of hard registers, use
        inherit_piecemeal_p to decide whether the values of individual hard
        registers can be inherited.

2004-05-04  H.J. Lu  <hongjiu.lu@intel.com>

        * config/ia64/t-ia64 (LIB2ADDEH): Remove gthr-gnat.c.
        * config/s390/t-tpf (LIB2ADDEHDEP): Likewise.
        * config/t-linux (LIB2ADDEHDEP): Likewise.

2004-05-04  Paul Brook  <paul@codesourcery.com>

        * config/arm/crti.asm: Push an even number of registers.
        * config/arm/crtn.asm: And restore them.  Load via sp.

2004-05-04  Paolo Bonzini  <bonzini@gnu.org>

        * ggc-zone.c (ggc_alloc_zone_1): Add MEM_STAT_DECL parameter.
        Collect overhead information.
        (ggc_alloc_stat): New name of ggc_alloc.  Add MEM_STAT_DECL
        parameter and pass it through.
        (ggc_alloc_typed_stat): New name of ggc_alloc_typed.  Add
        MEM_STAT_DECL parameter and pass it through.
        (ggc_alloc_zone_stat): New name of ggc_alloc_zone.  Add
        MEM_STAT_DECL parameter and pass it through.

2004-05-03  Aldy Hernandez  <aldyh@redhat.com>

        * config/rs6000/rs6000-protos.h: Protoize rs6000_hard_regno_nregs.

        * config/rs6000/rs6000.c (rs6000_hard_regno_nregs): New.

        * config/rs6000/rs6000.h (HARD_REGNO_NREGS): Call
        rs6000_hard_regno_nregs.

2004-05-03  Eric Christopher  <echristo@redhat.com>

        * config/s390/s390.c (s390_emit_prologue): Call unspec tpf
        prologue insn instead of setting up call.
        (s390_emit_epilogue): Ditto.
        * config/s390/s390.md (prologue_tpf, epilogue_tpf): New patterns.
        (define_constants): Add numbers for above patterns.

2004-05-03  Eric Christopher  <echristo@redhat.com>

        * config/s390/s390.h (CONDITIONAL_REGISTER_USAGE): Move body...
        * config/s390/s390.c (s390_conditional_register_usage): ...here.
        * config/s390/s390-protos.h: Prototype.

2004-05-03  Joe Buck <jbuck@welsh-buck.org>

        * cppfiles.c (pchf_adder): Eliminate use of |= in d->have_once_only
        assignment.

2004-05-03  Eric Christopher  <echristo@redhat.com>

        * config/mips/mips.md: Fix branch length attribute definition.

2004-05-03  Aldy Hernandez  <aldyh@redhat.com>

        * config.gcc: Remove --enable-altivec support.

        * config/rs6000/altivec-defs.h: Remove.

2004-05-03  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>

        * fixinc/inclhack.def (svr4_profil): Don't apply on IRIX 5/6.
        * fixinc/fixincl.x: Regenerate.

2004-05-03  Uros Bizjak  <uros@kss-loka.si>

        * config/i386/i386.md (*fyl2x_sfxf3, *fyl2x_dfxf3): Remove insn
        definition.
        (log?f2, log10?f2, log2?f2): Reimplement expanders with
        float_truncate insn.
        (*fxtractsf3, *fxtractdf3): Remove insn definition.
        (logb?f2): Reimplement expanders with float_truncate insn.

2004-05-03  Graham Stott  <graham.stott@btinternet.com>

        PR 14718
        * dwarf2out.c (dwarf2out_imported_module_or_decl): Use
        force_type_die for CONST_DECL.

2004-05-03  Eric Botcazou  <ebotcazou@libertysurf.fr>
            Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>

        * config.gcc (sparc64-*-solaris2*, sparcv9-*-solaris2*): Add
        tm-dwarf2.h to tm_file.
        (sparc-*-solaris2*): Add tm-dwarf2.h to tm_file for Solaris 7+.
        * config/sparc/sol2-bi.h (PREFERRED_DEBUGGING_TYPE): Delete.
        (ASM_DEBUG_SPEC): Delete.

2004-05-03  Uros Bizjak  <uros@kss-loka.si>

        * optabs.h (enum optab_index): Add new OTI_expm1.
        (expm1_optab): Define corresponding macro.
        * optabs.c (init_optabs): Initialize expm1_optab.
        * genopinit.c (optabs): Implement expm1_optab using expm1?f2
        patterns.
        * builtins.c (expand_builtin_mathfn): Handle BUILT_IN_EXPM1{,F,L}
        using expm1_optab.
        (expand_builtin): Expand BUILT_IN_EXPM1{,F,L} using
        expand_builtin_mathfn if flag_unsafe_math_optimizations is set.

        * config/i386/i386.md (expm1df2, expm1sf2, expm1xf2): New expanders
        to implement expm1, expm1f and expm1l built-ins as inline x87
        intrinsics.

2004-05-02  Alexandre Oliva  <aoliva@redhat.com>

        2003-11-19  Richard Sandiford  <rsandifo@redhat.com>
        * config/frv/frv.md (*return_true, *return_false): New patterns.

2004-05-02  Kazu Hirata  <kazu@cs.umass.edu>

        * rtl.h (PHI_NODE_P): Remove.

2004-05-02  Eric Botcazou  <ebotcazou@act-europe.fr>

        PR middle-end/14988
        * function.c (assign_stack_local_1): Use BITS_PER_UNIT alignment
        when passed -2 as 'align'.
        (put_var_into_stack): Use 'bool' as the type for the three local
        predicates.  Adjust calls to put_reg_into_stack.
        When passed a CONCAT, instruct put_reg_into_stack to use
        a consecutive stack slot for the second part.
        (put_reg_into_stack): Remove 'promoted_mode' parameter, add
        'consecutive_p' parameter.  Turn the three predicates into 'bool'
        parameters.  Retrieve the register mode from 'reg'.
        When consecutive_p is true, instruct assign_stack_local_1 to use
        BITS_PER_UNIT alignment.
        (put_addressof_into_stack): Use 'bool' as the type for the two
        local predicates. Adjust call to put_reg_into_stack.

2004-05-02  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * fold-const.c (fold_convert_const, fold): Add missing
        FIX_ROUND_EXPR case.

2004-05-02  Alexandre Oliva  <aoliva@redhat.com>

        * configure.ac (FLEX, BISON): Only use tools from the build tree
        if build equals host.
        * configure: Rebuilt.

        * config/frv/frv-protos.h (frv_expand_epilogue,
        frv_expand_fdpic_call): Add bool argument.
        * config/frv/frv.c (frv_function_ok_for_sibcall): New.
        (TARGET_FUNCTION_OK_FOR_SIBCALL): Define to it.
        (frv_expand_epilogue): Use new argument to decide whether to emit
        return instruction or copy the return address to LR.
        (frv_expand_fdpic_call): Inline PLT entry when emitting direct
        sibcalls.
        (sibcall_operand): New.
        * config/frv/frv.h (PREDICATE_CODES): call_operand doesn't match
        PLUS nor LABEL_REF.  Add sibcall_operand.
        * config/frv/frv.md (call, call_value): Pass false to
        frv_expand_fdpic_call.
        (call_fdpicdi, call_value_fdpicdi): Insert %i0 in calll.
        (sibcall, sibcall_internal, sibcall_fdpicdi, sibcall_value,
        sibcall_value_internal, sibcall_value_fdpicdi): New.
        (return_unsigned_true, return_unsigned_false): New.
        (epilogue): Adjust call to frv_expand_epilogue.
        (sibcall_epilogue): New.

        * config/frv/frv.h (ASM_SPEC): Pass -mno-fdpic as -mnopic.
        (CPP_SPEC, CPP_SIMPLE_SPEC): Undefine __FRV_ACC__ and __FRV_FPR__
        before redefining them.

2004-05-01  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (fold_fixed_mathfn): New function.
        (fold_builtin_lround, fold_builtin): Use it.

2004-05-01  Jakub Jelinek  <jakub@redhat.com>

        * config/sparc/linux64.h (TARGET_DEFAULT): Make 64-bit by default
        also for TARGET_CPU_DEFAULT == TARGET_CPU_ultrasparc3.

2004-05-01  Kazu Hirata  <kazu@cs.umass.edu>

        * config/cris/cris.h: Revert my "fix comment typos" patch.

2004-05-01  Richard Sandiford  <rsandifo@redhat.com>

        * config/mips/mips.h (TUNE_MACC_CHAINS): Fix comment.

2004-05-01  Falk Hueffner  <falk@debian.org>

        * config/alpha/alpha.md (builtin_insbl, builtin_inswl,
        builtin_insll): Disallow 0 as first input operand.

2004-05-01  Falk Hueffner  <falk@debian.org>

        * config/alpha/alpha.c (alpha_rtx_costs): Fix shiftadd costs.

2004-05-01  Ulrich Weigand  <uweigand@de.ibm.com>

        PR middle-end/15054
        * expr.c (expand_expr_real): Do not call preserve_temp_slots
        on a TARGET_EXPR temp.
        * function.c (assign_stack_temp_for_type): Set 'keep' flag for
        TARGET_EXPR temp slots.

2004-05-01  Paolo Bonzini  <bonzini@gnu.org>

        * simplify-rtx.c (simplify_ternary_operation): When
        converting an IF_THEN_ELSE to a relational op, return
        correct mode.

2004-04-30  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (fold_builtin_round): Fix comment typo.
        (fold_builtin_lround): New function.
        (fold_builtin): Use it.

2004-04-20  Andrew Pinski  <pinskia@physics.uc.edu>

        PR target/11608
        * config/sh/elf.h (DBX_OUTPUT_MAIN_SOURCE_FILE_END): Update and make it
        more like the one in config/dbxelf.h.

2004-04-30  Zack Weinberg  <zack@codesourcery.com>

        * tree.h (SET_ARRAY_OR_VECTOR_CHECK): Rename to SET_OR_ARRAY_CHECK
        and adjust definition accordingly.
        (TYPE_DOMAIN): Allow only SET_TYPE and ARRAY_TYPE.
        (TYPE_DEBUG_REPRESENTATION_TYPE): Allow only VECTOR_TYPE.
        * expr.c (store_constructor): Do not access TYPE_DOMAIN of a
        VECTOR_TYPE.

2004-04-30  Jason Merrill  <jason@redhat.com>

        PR c++/14587
        * config/i386/winnt.c (associated_type): Look for attributes on
        the TYPE_MAIN_VARIANT of *this.
        * attribs.c (decl_attributes): If ATTR_FLAG_TYPE_IN_PLACE, also
        apply the attributes to the variants.

2004-04-30  Paul Brook  <paul@codesourcery.com>

        * config.gcc: Simplify arm --with-{cpu,tune} test.
        * config/arm/arm-cores.def: Document whitespace restrictions.

2004-04-30  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>

        PR other/1963
        * config/alpha/osf.h (SWITCHES_NEED_SPACES): Define.

2004-04-30  Brian Ford  <ford@vss.fsi.com>
            DJ Delorie  <dj@redhat.com>

        * config/i386/cygming.h [HAVE_GAS_PE_SECREL32_RELOC]
        (DWARF2_DEBUGGING_INFO): Define to enable.
        (DBX_REGISTER_NUMBER): Define to use the svr4 register map for
        DWARF2.
        * configure.ac (Target-specific assembler checks)
        <i[34567]86-*-[cygwin*|pe|mingw32*]>: New test for .secrel32
        relocs.
        * configure: Regenerate.
        * config.in: Likewise.

        * config/i386/cygming.h [HAVE_GAS_PE_SECREL32_RELOC]
        (ASM_OUPUT_DWARF_OFFSET): Define.

2004-04-29  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390-protos.h (s390_emit_epilogue): Parameter added.
        (s390_emit_call): New function prototype added.
        (s390_tls_get_offset): Function removed.
        * config/s390/s390.c (s390_function_ok_for_sibcall,
        s390_call_saved_register_used_p): New functions.
        (TARGET_FUNCTION_OK_FOR_SIBCALL): Definition of target macro added.
        (s390_tls_get_offset): Function merged into s390_emit_tls_call_insn.
        (s390_emit_tls_call_insn): New function.
        (legitimize_tls_address): Call s390_emit_tls_call_insn instead of
        emit_call_insn.
        (s390_emit_prologue): Use s390_emit_call instead of emit_call_insn.
        (s390_emit_epilogue): Like s390_emit_prologue. Parameter for sibcalls
        added.
        * config/s390/s390.h (SIBCALL_REGNUM): New macro representing the
        register number used to hold the target address for sibcalls.
        * config/s390/s390.md ("sibcall", "sibcall_value", "sibcall_epilogue"):
        New expanders.
        ("*sibcall_br", "*sibcall_brc", "*sibcall_brcl", "*sibcall_value_br",
        "*sibcall_value_brc", "*sibcall_value_brcl"): New insns.
        ("call_exp", "call_value_exp", "call_value_tls", "call_value_tls_exp"):
        Expanders removed.
        ("call", "call_value"): Call s390_emit_call to emit the call patterns.
        ("*bras", "*brasl", "*bras_r", "*brasl_r", "*bras_tls", "*brasl_tls",
        "*basr", "*basr_r", "*basr_tls"): Added constraint: !SIBLING_CALL_P.
        ("epilogue"): Changed the call to s390_emit_epilogue to use the
        new parameter.

2004-04-30  Kazu Hirata  <kazu@cs.umass.edu>

        * bb-reorder.c, c-opts.c, cfglayout.c, cgraph.c, cgraphunit.c,
        cppfiles.c, fold-const.c, ggc-zone.c, loop-doloop.c, optabs.c,
        reg-stack.c, varasm.c, config/alpha/ev4.md,
        config/alpha/ev5.md, config/alpha/ev6.md, config/arm/arm.c,
        config/c4x/c4x.c, config/c4x/c4x.md, config/cris/cris.c,
        config/cris/cris.h, config/fr30/fr30.h, config/frv/frv.c,
        config/frv/frv.h, config/frv/frv.md, config/h8300/h8300.c,
        config/i386/i386.c, config/i386/i386.md, config/i386/winnt.c,
        config/ia64/itanium2.md, config/ip2k/ip2k.c,
        config/mips/mips.c, config/mips/mips.h, config/mips/sr71k.md,
        config/pa/pa.c, config/s390/s390.c, config/sh/sh.c: Fix
        comment typos.

2004-04-30  Paul Brook  <paul@codesourcery.com>

        * config.gcc: Default ep9312 to hard-float.
        * config/arm/arm-cores.def: Add ARCH field.
        * config/arm/arm.c (FL_FOR_ARCH*): Define.
        (arm_arch_cirrus): New variable.
        (all_cores): Set and use arch.
        (all_architectures): Ditto.
        (arm_arch_name): New variable.
        (arm_override_options): Set it. Use [SUB]TARGET_CPU_DEFAULT.
        Set and use arm_arch_cirrus.
        * config/arm/arm.h (TARGET_CPU_CPP_BUILTINS): Set arch defines.
        (enum processor_type): Update ARM_CORE define.
        (enum target_cpus): Add.  Replaces TARGET_CPU_* defines.
        (CPP_SPEC): Remove %(cpp_cpu_arch).
        (CPP_ARCH_DEFAULT_SPEC): Remove.
        (CPP_CPU_ARCH_SPEC): Remove.
        (EXTRA_SPECS): Don't use CPP_*ARCH*_SPEC.
        (FPUTYPE_DEFAULT): Don't define here.

2004-04-30  J"orn Rennecke <joern.rennecke@superh.com>

        * flow.c (propagate_one_insn): Call mark_set_regs for stack pointer
        updates too.

2004-04-30  Paul Brook  <paul@codesourcery.com>

        * arm.c (arm_needs_doubleword_align): Use mode alignment.

2004-04-30  Paolo Bonzini  <bonzini@gnu.org>

        * config/altivec/altivec.h [__cplusplus] (vec_subsubs): Rename to
        vec_sububs.
        [__cplusplus] (vec_subsuhs): Rename to vec_subuhs, without
        duplicates.

2004-04-30  Uros Bizjak  <uros@kss-loka.si>

        * config/i386/i386.md (atansf2, atandf2, atanxf2): Move near
        atan2?f3 expanders.

2004-04-29  Nick Clifton  <nickc@redhat.com>

        Bug 14093
        * config/sh/sh-protos.h (sh_promote_prototypes): Declare.
        * config/sh/sh.c (sh_promote_prototypes): Remove declaration.
        Delete static from definition.
        * config/sh/sh.h (FUNCTION_VALUE): Add sh_promote_prototypes call.

2004-04-30  Uros Bizjak  <uros@kss-loka.si>

        * reg-stack.c (subst_stack_regs_pat): <UNSPEC_SIN, UNSPEC_COS,
        UNSPEC_FRNDINT, UNSPEC_F2XM1>: abort() if src1 dies.
        <UNSPEC_SINCOS_COS, UNSPEC_TAN_ONE, UNSPEC_XTRACT_FRACT>: Same.
        <UNSPEC_SINCOS_SIN, UNSPEC_TAN_TAN, UNSPEC_XTRACT_EXP>: Same.

2004-04-29  Richard Guenther  <richard.guenther@uni-tuebingen.de>

        * commom.opt (Wfatal-errors): Add it.
        * diagnostic.c (flag_fatal_errors): Define it.
        (diagnostic_action_after_output): Check for flag_fatal_errors.
        * flags.h (flag_fatal_errors): Declare it.
        * opts.c (common_handle_option): Add OPT_Wfatal_errors.
        * doc/invoke.texi (Warning Options): Document -Wfatal-errors.

2004-04-30  Josef Zlomek  <zlomekj@suse.cz>

        * gcse.c (remove_reachable_equiv_notes): Delete notes also in
        blocks which have kill flag set.

2004-04-29  Ben Elliston  <bje@au.ibm.com>

        * configure.ac (--with-as): Abort if user-supplied assembler
        cannot be executed.
        (--with-ld): Likewise for the linker.
        * configure: Regenerate.

2004-04-29  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * convert.c (convert_to_integer): Ensure `long_integer_type_node'
        isn't NULL before using it.