* m32r/m32r.c (m32r_expand_block_move): Fix byte count computations.

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

Mon Nov  2 11:46:17 1998  Doug Evans  <devans@canuck.cygnus.com>

        * m32r/m32r.c (m32r_expand_block_move): Fix byte count computations.
        (m32r_output_block_move): Rewrite bytes < 4 handling.

Mon Nov  2 10:10:35 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * configure.in: Call AC_FUNC_VFORK.

        * collect2.c: Define VFORK_STRING as a printable string for
        error messages (either "vfork" or "fork".)  If HAVE_VFORK_H is
        defined, include vfork.h.  If VMS is defined, define vfork()
        appropriately.  Remove vfork check on USG, we're using autoconf.
        (collect_execute): Pass VFORK_STRING to fatal_perror instead of
        checking locally what string to pass.
        (scan_prog_file): Likewise.
        (scan_libraries): Likewise.

        * gcc.c: Remove vfork check on USG, we're using autoconf.
        Besides, no calls to vfork/fork occur in this file.

        * protoize.c: Likewise.

Mon Nov  2 07:52:28 1998  Alexandre Oliva  <oliva@dcc.unicamp.br>

        * configure.in (DEFAULT_LINKER): renamed from LD
        (DEFAULT_ASSEMBLER): renamed from AS; reverted Schwab's patch
        (gcc_cv_as): try $DEFAULT_ASSEMBLER before $AS
        * configure: rebuilt

Mon Nov  2 01:48:10 1998  Alexandre Oliva  <oliva@dcc.unicamp.br>

        * BUGS: fix the regexp for `more' to find the appropriate node.
        Reported by Joerg Pietschmann  <joerg_pietschmann@zkb.ch>

        * BUGS: added link to the WWW FAQ

Sun Nov 1 18:27:15 PST 1998 Jeff Law  (law@cygnus.com)

        * version.c: Bump for snapshot.

Sun Nov  1 11:04:32 1998  Jeffrey A Law  (law@cygnus.com)

        * From Christian Gafton:
        * i386/linux.h (CPP_PREDEFINES): Add -D__i386__.
        * sparc/linux.h (CPP_PREDEFINES): Add -D__sparc__.
        * sparc/linux64.h (CPP_PREDEFINES): Add -D__sparc__.

Sat Oct 31 21:42:39 1998  Mark Mitchell  <mark@markmitchell.com>

        * c-common.c (c_get_alias_set): Allow all type-punning through
        unions.  Don't get confused about the type of a bit-field, despite
        the antics of build_modify_expr.

Sat Oct 31 22:35:29 1998  Jean-Pierre Radley <jpr@jpr.com>

        * fixinc.sco: Paramaterize #include_next values.
        * fixinc/fixinc.sco: Likewise.

Sat Oct 31 20:39:35 1998  Jeffrey A Law  (law@cygnus.com)

        * toplev.c (rest_of_compilation): No longer set reload_completed.
        * reload1.c (reload): Set it here.  Perform instruction splitting
        after reload has completed if we will be running the scheduler
        again.

Sat Oct 31 12:30:02 1998  Jeffrey A Law  (law@cygnus.com)

        * jump.c (jump_optimize): Initialize mappings from INSN_UID to
        EH region if exceptions are enabled and we're performing cross
        jump optimizations.
        (find_cross_jump): Exit loop if the insns are in different EH regions.

Sat Oct 31 10:02:48 1998  Mark Mitchell  <mark@markmitchell.com>

        * dwarf2out.c (output_call_frame_info): Use
        ASM_OUTPUT_DWARF_DELTA4 for the CIE offset to match frame.c.

Sat Oct 31 10:23:14 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        Reinstall Apr 24th fix, lost during May 6th gcc2 merge:
        * c-common.c (check_format_info): Don't check for the 'x'
        format character twice, instead check for 'x' and 'X'

Fri Oct 30 14:50:25 1998  Jeffrey A Law  (law@cygnus.com)

        * configure.in (assembler features): Also make gas is configured if
        we find it in the souce tree.

Fri Oct 30 13:23:20 1998  Richard Henderson  <rth@cygnus.com>

        * i386.c (i386_comp_type_attributes): Compare whether the 
        attributes are defined, not their tree nodes.

Fri Oct 30 11:39:47 1998  Alexandre Oliva  <oliva@dcc.unicamp.br>

        * configure.in (gxx_include_dir): bitten by autoconf quoting
        characters :-(
        * configure: rebuilt

Fri Oct 30 10:43:29 1998  Andreas Schwab  <schwab@issan.cs.uni-dortmund.de>

        * configure.in: Ignore non-absolute value in $AS.

Fri Oct 30 00:54:25 1998  Peter Jakubek <pjak@snafu.de>

        * m68k.h (INDIRECTABLE_1_ADDRESS_P): Fix thinko.

Fri Oct 30 00:42:34 1998  Mark Elbrecht <snowball3@usa.net>

        * configure.in (msdosdjgpp): Set exeext and target_alias.

Thu Oct 29 23:55:43 1998  Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>

        * flow.c (XNMALLOC): New macro.
        (flow_int_list_blocks, basic_block_succ, basic_block_pred): New
        static variables.
        (add_edge, add_edge_to_label): New static functions.
        (free_bb_memory): New function.
        (flow_delete_insn): Delete function.
        (basic_block_drops_in): Delete variable.
        (find_basic_blocks): Allocate and initialize basic_block_head,
        basic_block_succ.  Don't allocate basic_block_drops_in.
        Call free_bb_memory at the beginning.
        (find_basic_blocks_1): Don't do multiple passes.
        Delete code to compute basic_block_drops_in.
        After calling make_edges, mark blocks reached by current block live.
        Update test for unreachable live blocks.
        (mark_label_ref): Delete args X, CHECKDUP.  Add PRED arg.  All callers
        changed.
        Simplify to call add_edge_to_label when a LABEL_REF is found.
        (make_edges): Simplify to call add_edge_to_label instead of
        mark_label_ref most of the time.
        Compute here whether control drops into the next block.
        (delete_unreachable_blocks): Return void.  All callers changed.
        Delete unreachable blocks in reverse order.
        After deleting all unreachable blocks, renumber the remaining ones
        and update n_basic_blocks.
        (delete_block): Speed up deletion a bit.
        Don't set basic_block_drops_in for deleted blocks.
        (free_basic_block_vars): Don't free basic_block_drops_in.
        (life_analysis_1): Update to use new edge representation.
        (dump_flow_info): Delete code to print basic block info; call
        dump_bb_data instead.
        (compute_preds_succs): Delete code to recompute basic_block_drops_in
        and uid_block_number.
        Simply copy the previously computed cfg.
        (dump_bb_data): New arg LIVE_INFO.  All callers changed.
        Print register lifetime information if LIVE_INFO is nonzero.
        * basic-block.h (dump_bb_data): Adjust prototype.
        * gcse.c (gcse_main): Update call to dump_bb_data.
        * rtl.h (free_bb_memory): Declare.
        * toplev.c (rest_of_compilation): Call free_bb_memory.

        * reload1.c (struct elim_table): Delete MAX_OFFSET member.
        (update_eliminable_offsets): Don't compute it.
        (set_initial_elim_offsets): Don't initialize it.
        Break out some code into set_initial_label_offsets so the rest of
        this function can be called from reload_as_needed.
        Assume that INITIAL_FRAME_POINTER_OFFSET is defeined when
        ELIMINABLE_REGS isn't.
        (set_initial_label_offsets): New function, broken out of
        set_initial_elim_offsets.
        (set_offsets_for_label): New function, broken out of set_label_offsets
        and reload_as_needed.
        (reload): Call the two new functions.
        (reload_as_needed): Call set_initial_elim_offsets instead of
        duplicating the code.  Likewise for set_offsets_for_label.

        * reload1.c (choose_reload_regs): Fix typo in Oct 17 change.
        (emit_reload_insns): Ensure that when we set reg_reloaded_valid for
        any hard reg, reg_reloaded_dead contains valid data.

Thu Oct 29 22:30:54 1998  Marcus Meissner <Marcus.Meissner@informatik.uni-erlangen.de>

        * i386.c (i386_comp_type_attributes): Return nonzero for mismatched
        "stdcall" and "cdecl" attributes.

Thu Oct 29 19:05:17 1998  Jim Wilson  <wilson@cygnus.com>

        * sched.c (update_flow_info): Add code to ! found_orig_dest case to
        handle deleted no-op moves of hard registers.
        * haifa-sched.c (update_flow_info): Likewise.

Thu Oct 29 18:07:47 1998  Jeffrey A Law  (law@cygnus.com)

        * mips.md (reload_{in,out}{si,di}): Emit a USE of HILO at the end
        of the sequences to reload the HILO register which do not actually
        reference HILO.

Thu Oct 29 12:39:35 1998  Jim Wilson  <wilson@cygnus.com>

        * c-common.c (c_get_alias_set): Handle ARRAY_REF of union field.

Thu Oct 29 14:10:22 EST 1998  Andrew MacLeod  <amacleod@cygnus.com>

        * except.c (emit_eh_context): Make the EH context register stay alive
        at -O0 so stupid.c doesn't get confused.

1998-10-29 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

        * emit-rtl.c (try_split): Do not try to split a BARRIER.

Thu Oct 29 01:33:54 1998  Jan Hubicka <hubicka@freesoft.cz>
                          Jeffrey A Law  (law@cygnus.com)

        * i386.md: Change ix86_cpu == PROCESSOR_PENTIUM to TARGET_PENTIUM
        (zero_extendsidi2): Use # in output template and handle completely by
        splits.
        (zero_extend splitters): New define_splits.
        (ashiftrt_32): New pattern.

Wed Oct 28 22:58:35 1998  Jason Merrill  <jason@yorick.cygnus.com>

        * tree.c (append_random_chars): New fn.
        (get_file_function_name_long): Use it.

Wed Oct 28 22:27:05 1998  Richard Henderson  <rth@cygnus.com>

        * Makefile.in (cc1): Put C_OBJS, and thence @extra_c_objs@ last.
        (LIBCPP_OBJS): New.  Add cppulp.o.
        (cppmain, fix-header): Depend on and use libcpp.a.
        * configure.in (extra_c_objs, extra_cxx_objs): Use libcpp.a instead
        of the individual object files.
        * objc/Make-lang.in (cc1obj): Put OBJC_OBJS, and thence @extra_c_objs@,
        last.

        * cccp.c (user_label_prefix): New.
        (main): Set it off -f*leading-underscore.
        (special_symbol): Use it.
        * cpplib.c (special_symbol): Likewise.
        (cpp_handle_option): Handle -f*leading-underscore.
        * cppulp.c: New file.

        * output.h (user_label_prefix): Declare it.
        * dwarf2out.c (ASM_NAME_TO_STRING): Prepend user_label_prefix.
        * toplev.c (f_options, main): Handle -f*leading-underscore.

        * defaults.h (ASM_OUTPUT_LABELREF): Use asm_fprintf instead of
        referencing USER_LABEL_PREFIX directly.
        * config/nextstep.h (ASM_OUTPUT_LABELREF): Likewise.
        * m32r/m32r.h (ASM_OUTPUT_LABELREF): Likewise.
        * final.c (asm_fprintf): Use user_label_prefix instead.
        * arm/thumb.c (thumb_print_operand): Likewise.

        * gcc.c (default_compilers): Pass -f*leading-underscore on to
        cpp wherever appropriate.

Wed Oct 28 23:09:25 1998  Robert Lipe  <robertl@dgii.com>

        * sco5.h (SUBTARGET_SWITCHES): Add documentation for OpenServer-
        specific compiler switches.

Wed Oct 28 21:05:53 1998  Jeffrey A Law  (law@cygnus.com)

        * Makefile.in (c-common.o): Depend on c-pragma.h.  Use $(RTL_H) instead
        of rtl.h.

Wed Oct 28 20:52:47 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * gcc.c (EXTRA_SPECS, extra_specs): Introduce an intermediate
        structure which has exactly the members provided by EXTRA_SPECS.
        Xmalloc() the real `extra_specs', and initialize it from this
        intermediate structure.

        * alpha.h (EXTRA_SPECS): Revert change for missing initializers.

        * mips.h  (EXTRA_SPECS): Likewise.

        * sparc.h (EXTRA_SPECS): Likewise.

Wed Oct 28 16:46:07 1998  Andreas Schwab  <schwab@issan.cs.uni-dortmund.de>
    
        * function.c (purge_addressof_1): Instead of aborting when a
        bitfield insertion as a replacement for (MEM (ADDRESSOF)) does not
        work just put the ADDRESSOF on stack.  Otherwise remember all such
        successfull replacements, so that exactly the same replacements
        can be made on the REG_NOTEs.  Remove the special case for CALL
        insns again.
        (purge_addressof_replacements): New variable.
        (purge_addressof): Clear it at end.

1998-10-28 16:10 -0500  Zack Weinberg  <zack@rabi.phys.columbia.edu>

         * c-lang.c: Declare extern char *yy_cur if USE_CPPLIB.
           (lang_init): Call check_newline always.
         * c-lex.c (init_parse) [USE_CPPLIB=1]: After calling
           cpp_start_read, set yy_cur and yy_lim to read from
           parse_in.token_buffer, so that we'll see the first #line
           directive.
         * cpplib.c (cpp_start_read): finclude the main input file
           before processing -include/-imacros.  Process -imacros and
           -include separately, and handle -include by stacking a
           buffer for the file in question as if it'd been #included.
         * toplev.c (documented_lang_options) Recognize -H when
           USE_CPPLIB is on.

1998-10-28 16:09 -0500  Zack Weinberg  <zack@rabi.phys.columbia.edu>

         * cpplib.c: Merge do_once into do_pragma.  Break file handling
           code out of do_include.
           Move append_include_chain, deps_output,
           file_cleanup, redundant_include_p, import_hash,
           lookup_import, add_import, read_filename_string, read_name_map,
           open_include_file, finclude, safe_read to cppfiles.c.
           Move prototypes for deps_output, append_include_chain,
           finclude to cpplib.h.  Move definition of struct
           file_name_list there also.

         * cppfiles.c: New file.  Contains all the above functions
           broken out of cpplib.c; also hack_vms_include_specification
           from cccp.c and find_include_file, a new function broken out of
           do_include.

         * Makefile.in (cppmain): Depend on cppfiles.o.
           (fix-header): Likewise.
           (cppfiles.o): New target.
         * configure.in (--enable-c-cpplib): Add cppfiles.o to
           extra_c_objs.  Add ../cppfiles.o to extra_cxx_objs.

Wed Oct 28 14:06:49 1998  Jim Wilson  <wilson@cygnus.com>

        * dwarfout.c (dwarfout_file_scope_decl): If DECL_CONTEXT, don't abort
        if pending_types is non-zero.
        (dwarfout_finish): Verify pending_types is zero before finishing.

Wed Oct 28 10:29:09 1998  Nick Clifton  <nickc@cygnus.com>

        * expr.c (convert_move): Use shifts to perform the move if a
        suitable extend pattern cannot be found.  Code written by
        Richard Henderson <rth@cygnus.com>.

Wed Oct 28 03:59:29 1998  Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>

        * regclass.c (renumber, regno_allocated): New static variables, moved
        out of allocate_reg_info.
        (allocate_reg_info): Move these two variables outside the function.
        Move code to free memory into new function free_reg_info.
        (free_reg_info): New function, broken out of allocate_reg_info.
        * toplev.c (compile_file): Call free_reg_info, not allocate_reg_info.
        * rtl.h (allocate_reg_info): Don't declare.
        (free_reg_info): Declare.

        * final.c (cleanup_subreg_operands):  ASM_INPUTs need no treatment.

Wed Oct 28 02:38:12 1998  Jason Merrill  <jason@yorick.cygnus.com>

        * toplev.c (compile_file): Temporarily revert last change.

Wed Oct 28 00:00:35 1998  Jason Merrill  <jason@yorick.cygnus.com>

        * c-typeck.c (convert_for_assignment): Parenthesize.

1998-10-28  Andreas Schwab  <schwab@issan.cs.uni-dortmund.de>

        * reload1.c (delete_output_reload): Avoid ambigous else.

Wed Oct 28 00:10:35 1998  Jeffrey A Law  (law@cygnus.com)

        * toplev.c (compile_file): Call allocate_reg_info to free register
        table memory.
        * rtl.h (allocate_reg_info): Declare.

        * PROJECTS: Remove entry for local spilling.

        * final.c (cleanup_subreg_operands): New function.
        (final_scan_insn): Use it.
        (alter_subreg): Clear the "used" field when we turn a SUBREG into
        a REG.
        * reload1.c (reload): Delete CLOBBER insns and also cleanup SUBREG
        operands when reload has finished.
        * reload.h (cleanup_subreg_operands): Declare..
        * flow.c (life_analysis_1): No longer delete CLOBBER insns after
        reload.  Handled in reload itself.

Tue Oct 27 23:32:34 1998  Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>

        * reload1.c (verify_initial_offsets): New function.
        (reload): Call it after reload_as_needed.  Also verify that the frame
        size stays constant during reload_as_needed.
        * i386.h (CONST_DOUBLE_OK_FOR_LETTER_P): Undo Jul 26 change.

        * reload.h (struct insn_chain): Add need_operand_change element.
        * reload1.c (new_insn_chain): Clear it.
        (calculate_needs_all_insns): Set it; don't overload need_reload.
        (reload_as_needed): Use it.

        * reload.c (find_reloads_address): Use BASE_REG_CLASS instead of
        reload_address_base_reg_class throughout.  Similar for INDEX_REG_CLASS
        and reload_address_index_reg_class.
        (find_reloads_address_1): Likewise.
        * reload.h (reload_address_base_reg_class,
        reload_address_index_reg_class): Don't declare.
        * reload1.c (reg_old_renumber, pseudo_previous_regs,
        pseudo_forbidden_regs, bad_spill_regs_global): New static variables.
        (used_spill_regs): Now static.
        (reload_address_base_reg_class, reload_address_index_reg_class,
        regs_explicitly_used, counted_for_groups, counted_for_nongroups,
        basic_block_needs, max_needs, group_size, group_mode, max_groups,
        max_nongroups, max_needs_insn, max_groups_insn, max_nongroups_insn,
        forbidden_regs):
        Deleted variables.
        (init_reload): Delete code to compute base/index reg classes.
        (reload): Delete variable J.
        Delete code to manage basic_block_needs.
        Don't compute regs_explicitly_used.
        Allocate, initialize and free reg_old_renumber, pseudo_forbidden_regs,
        pseudo_previous_regs.
        Initialize bad_spill_regs_global.
        Don't call order_regs_for_reload here.
        Don't initialize spill_reg_order and n_spills.
        Don't forbid explicitly used regs to be used for spill regs.
        Change main loop to infinite loop, with explicit break statements.
        Make SOMETHING_CHANGED variable local to that loop.
        Don't initialize max_needs, max_groups, max_nongroups, max_needs_insn,
        max_groups_insn, max_nongroups_insn, group_size, group_mode.
        Make sure spilled_speudos is cleared before calling spill_hard_reg or
        new_spill_reg.
        Don't call dump_needs.
        Delete code to reset potential_reload_regs.
        Delete code to terminate loop conditional on the global needs variables
        showing no further needs.
        (calculate_needs_all_insns): Return void.  All callers changed.
        Initialize somehing_needs_elimination here, not in reload.
        Delete avoid_return_reg kludge.
        (calculate_needs): Lose AVOID_RETURN_REG and GLOBAL args, return void.
        All callers changed.
        Initialize the group_mode and group_size elements of the arg CHAIN.
        Delete code to manage basic_block_needs.
        Operate on elements of CHAIN instead of global variables.
        Delete avoid_return_reg kludge.
        (find_tworeg_group): Lose GLOBAL arg, take CHAIN arg, return void.
        All callers changed.
        Operate on elements of CHAIN instead of global variables.
        Delete special SMALL_REGISTER_CLASSES code.
        Delete spill_failure code; now in new_spill_reg.
        (find_group): Lose GLOBAL arg, take CHAIN arg, return void.
        All callers changed.
        Operate on elements of CHAIN instead of global variables.
        (maybe_mark_pseudo_spilled): New static function.
        (find_reload_regs): Lose GLOBAL arg, take CHAIN arg, return void.
        All callers changed.
        Operate on elements of CHAIN instead of global variables.
        Call order_regs_for_reload here, not in reload.
        Initialize spill_reg_order and n_spills.
        Simplify test whether an asm insn is involved.
        Delete spill_failure code; now in new_spill_reg.
        Call maybe_mark_pseudo_spilled for everything marked as live in
        CHAIN.  Merge CHAIN's used_spill_regs into the global variable
        used_spill_regs.
        (dump_needs): Take CHAIN arg.  No longer static, to prevent the
        compiler from optimizing this function (now unused) away.
        Operate on elements of CHAIN instead of global variables.
        (possible_group_p): Lose MAX_GROUPS arg, take CHAIN arg.  All callers
        changed.
        Operate on elements of CHAIN instead of global variables.
        (count_possible_groups): Lose GROUP_SIZE, GROUP_MODE, MAX_GROUPS args,
        take CHAIN arg.  All callers changed.
        Operate on elements of CHAIN instead of global variables.
        (new_spill_reg): Lose MAX_NEEDS, MAX_NONGROUPS, GLOBAL args, take
        CHAIN, NONGROUP args.  Return void.  All callers changed.
        Verify caller isn't trying to spill a pseudo.
        Simplify test for illegal reg, just use bad_spill_regs.
        Generate better error messages.
        Operate on elements of CHAIN instead of global variables.
        Mark spilled register in CHAIN's used_spill_regs element.
        Don't call spill_hard_reg.
        (spill_hard_reg): Lose GLOBAL arg, return void.  All callers changed.
        Mark spilled hard regs in bad_spill_regs_global.
        Mark affected pseudos in spilled_pseudos, but don't spill them.
        (ior_hard_reg_set): New static function.
        (finish_spills): Return int.  All callers changed.
        Compute spill_reg_order, n_spills and spill_regs here.  Also update
        regs_ever_live for regs used as spills.
        For every pseudo in spilled_pseudos, spill it and mark the previous
        hard reg it had in pseudo_previous_regs.  Compute which hard regs
        arseudo): New static function.
        (order_regs_for_reload): Take CHAIN arg.  All callers changed.
        Initialize bad_spill_regs from bad_spill_regs_global, then merge any
        hard registers explicitly used across the current insn into the set.
        Compute hard_reg_n_uses taking only pseudos live across this insn
        into account.
        Tweak sorting of potential_reload_regs.
        (compare_spill_regs): Delete function.
        (reload_as_needed): Don't sort the spill_regs array, it's computed
        in proper order in finish_spills.
        Delete avoid_return_reg kludge.
        Delete code to manage basic_block_needs.
        (allocate_reload_reg): Minor speed/readability tweaks.
        Operate on elements of CHAIN instead of global variables.
        (choose_reload_regs): Lose AVOID_RETURN_REG arg.  All callers changed.
        Delete avoid_return_reg kludge.
        Initialize reload_reg_used from CHAIN's used_spill_regs element.
        Delete unused label FAIL.
        (reload_combine): Replce reload_address_index_reg_class with
        INDEX_REGS.
        Don't use used_spill_regs to determine information about lifetime of
        hard regs.

Tue Oct 27 13:15:02 1998  Nick Clifton  <nickc@cygnus.com>
        
        * toplev.c (display_help): Ignore empty target specific
        options, and if -W is also specified on the command line then
        display undocumented options.

        * config/arm/arm.c: Updated with changes in devo sources.
        * config/arm/arm.h: Updated with changes in devo sources.
        * config/arm/lib1funcs.asm: Updated with changes in devo sources.
        * config/arm/lib1thumb.asm: Add ELF support.

Tue Oct 27 16:11:43 1998  David Edelsohn  <edelsohn@mhpcc.edu>
        
        * collect2.c (aix64_flag): New variable.
        (main, case 'b'): Parse it.
        (GCC_CHECK_HDR): object magic number must match mode.
        (scan_prog_file): Only check for shared object if valid header.
        Print debugging if header/mode mismatch.

Tue Oct 27 10:15:02 1998  Nick Clifton  <nickc@cygnus.com>

        Added support for arm-elf-linux configuration, submitted by Philip
        Blundell <pb@nexus.co.uk>, and integrated this with the arm-elf
        code developed by Catherine Moore <clm@cygnus.com>.  The following
        files are affected: 

        * configure.in: Add arm-*-linux-gnu, armv2-*-linux and arm-*-elf
        targets. 

        * configure: Regenerated.
        
        * config/arm/aout.h: Add default definitions of REGISTER_PREFIX,
        USER_LABEL_PREFIX and LOCAL_LABEL_PREFIX.  Make other macro
        definitions conditional on their not having been already defined.

        * config/arm/lin1funcs.asm: Add ELF only macros to generate .size
        and .type directives, and add "(PLT)" qualification to function
        calls.

        * config/arm/linux.h: Deleted.  This file is now superceeded by
        either linux-elf.h or linux-aout.h.

        * config/arm/linux-gas.h: Define `inhibit_libc' if cross-compiling.
        (CLEAR_INSN_CACHE): New macro, currently disabled (awaiting kernel
        support).
        Move definitions from old linux.h file here.
        
        * config/arm/elf.h: New file.  Generic ARM/ELF support.
        
        * config/arm/linux-aout.h: New file.  Support for Linux with a.out.
        
        * config/arm/linux-elf.h: New file.  Support for Linux with ELF.
        
        * config/arm/linux-elf26.h: New file.  Support for Linux with ELF
        using the 26bit APCS.
        
        * config/arm/unknown-elf.h: New file.  Support for OS'es other
        than Linux with ELF.

        * config/arm/t-arm-elf: New file.  makefile fragment for arm-elf
        builds.
        
        * config/arm/coff.h: Include aout.h for basic assembler macros.
        Add support for -mstructure_size_boundary=<n> command line option.
        
        * config/arm/arm.h: Add support for -mstructure_size_boundary=<n>
        command line option.  Make macro definitions conditional on their
        not having been already defined. 

        * config/arm/arm.c: Add support for -mstructure_size_boundary=<n>
        command line option.

        
Tue Oct 27 08:56:46 1998  Andrew MacLeod  <amacleod@cygnus.com>

        * dwarfout.c (ASM_OUTPUT_DWARF_STRING_NEWLINE): ASM_OUTPUT_DWARF_STRING
        has been changed to not include a newline. Use this macro instead.
        (output_enumeral_list, const_value_attribute, name_attribute,
        comp_dir_attribute, prototyped_attribute, producer_attribute,
        inline_attribute, pure_or_virtual_attribute, output_inheritance_die,
        dwarfout_file_scope_decl, generate_new_sfname_entry,
        generate_macinfo_entry, dwarfout_init, dwarfout_finish): Use
        ASM_OUTPUT_DWARF_STRING_NEWLINE macro.

Mon Oct 26 13:35:02 1998  Richard Henderson  <rth@cygnus.com>

        * combine.c (subst): Process the inputs to a parallel asm_operands
        only once.

Mon Oct 26 13:32:31 1998  Richard Henderson  <rth@cygnus.com>

        * stmt.c (expand_asm_operands): Accept `=' or `+' at any position.

Mon Oct 26 12:53:14 1998  Jeffrey A Law  (law@cygnus.com)

        * tm.texi (ASM_OUTPUT_MAX_SKIP_ALIGN): Document.

Mon Oct 26 00:36:58 PST 1998 Jeff Law  (law@cygnus.com)

        * version.c: Bump for snapshot.

Sun Oct 25 23:36:52 1998  Jason Merrill  <jason@yorick.cygnus.com>

        * stmt.c (expand_fixup): Set fixup->before_jump to a
        NOTE_INSN_DELETED instead of a NOTE_INSN_BLOCK_BEG.

Sun Oct 25 15:49:57 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * Makefile.in (recog.o): Depend on toplev.h.
        (insn-emit.o): Depend on recog.h.
        (insn-peep.o): Depend on recog.h and insn-config.h.

        * combine.c (simplify_set): Remove unused variable `scratches'.

        * final.c (final_scan_insn): Wrap declaration of variables `vlen'
        and `idx' in macro conditional controlling their use.

        * genemit.c (main): Make the generated output file include
        recog.h.  Don't have it declare `insn_operand_constraint', since
        we get it from recog.h.

        * genpeep.c (main): Make the generated output file include
        insn-config.h and recog.h.

        * recog.c: Include toplev.h.
        (extract_insn): Remove unused variable `p'.

        * regclass.c (fix_register): Add missing braces around initializer
        for `what_option'.
        (allocate_reg_info): Move variable `i' into the scope where it is
        used.  Change its type to `size_t'.

Sun Oct 25 13:10:15 1998  Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>

        * reload.c (push_reload): When merging reloads, make sure
        that reload_in_reg and reload_in are from the same reload in
        all cases.

Sun Oct 25 12:07:00 1998  Mumit Khan  <khan@xraylith.wisc.edu>

        * i386/crtdll.h (CPP_PREDEFINES): Fix typo.
        * i386/mingw32.h (CPP_PREDEFINES): Likewise.

Fri Oct 23 23:42:03 1998  David Edelsohn  <edelsohn@mhpcc.edu>

        * loop.c (loop_has_tablejump): New variable.
        (prescan_loop): Scan for it.
        (insert_bct): Replace explicit scan with use of it.
        * regclass.c (regclass): Restore loop variable j.
        (record_reg_classes): Deterine op_types modifiers and initialize
        classes[i] before matching constraints.  Handle matching
        constraints 5-9.
        
Fri Oct 23 13:55:48 1998  Jim Wilson  <wilson@cygnus.com>

        * m32r/m32r.c (gen_split_move_double): Call alter_subreg.  Delete
        subreg support.

Fri Oct 23 16:19:24 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * mips.h (EXTRA_SPECS): Add missing initializers.

Fri Oct 23 16:08:39 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * sparc.h (EXTRA_SPECS): Add missing initializers.
        (sparc_defer_case_vector): Provide a prototype.

        * svr4.h (ASM_OUTPUT_ASCII): Cast STRING_LIMIT to (long) when
        comparing it to the result of a pointer subtraction.

Fri Oct 23 15:34:14 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * alpha.c (override_options): Use ISDIGIT(), not isdigit().  Cast
        the argument to (unsigned char).

        * alpha.h (EXTRA_SPECS): Add missing initializers.
        (ASM_GENERATE_INTERNAL_LABEL): Ensure the argument matches the
        format specifier.

Fri Oct 23 13:12:35 1998  Jeffrey A Law  (law@cygnus.com)

        * flow.c (life_analysis_1): Enable "rescan" code after reload.
        (propagate_block): Delete dead code after reload.

        * sched.c (update_flow_info): Revert Oct 19, 1998 change.  Brings
        back Oct 15, 1998 change.  
        * haifa-sched.c (update_flow_info): Likewise.
        * flow.c (life_analysis_1): Delete CLOBBER insns after reload.

        * mn10200.md (truncated shift): Accept constant inputs too.

Fri Oct 23 04:06:57 1998  Richard Earnshaw (rearnsha@arm.com)

        * machmode.h (mode_mask_array): No longer const.
        * rtl.c (init_rtl): Fully initialize it if EXTRA_CC_MODES defined.

Fri Oct 23 11:19:06 1998  Martin v. Löwis <loewis@informatik.hu-berlin.de>

        * frame.c: Somewhat explain `FDE'.
        Suggested by Brendan Kehoe

Fri Oct 23 00:56:11 1998  Jason Merrill  <jason@yorick.cygnus.com>

        * expr.c (pending_chain): Move up.
        (save_expr_status): Do save pending_chain.
        (restore_expr_status): And restore it.
        * function.h (struct function): Add pending_chain.

1998-10-23 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

        * reorg.c (relax_delay_slots): Fixed test for mostly_true_jump. The
        did not match the code.

Fri Oct 23 00:07:01 1998  Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>

        * regclass.c (regclass): Break out some code into new function
        scan_one_insn, and into regclass_init.
        (init_cost): New static variable, moved out of regclass.
        (regclass_init): Initialize it here, not in .
        (scan_one_insn): New static function, broken out of regclass.
        * recog.c (apply_change_group): Break out some code into new
        function insn_invalid_p.
        (insn_invalid_p): New static fn, broken out of apply_change_group.

Thu Oct 22 22:34:42 1998  Jim Wilson  <wilson@cygnus.com>

        * reload1.c (reload_as_needed): When rewrite POST_INC, verify
        reg_reloaded_contents matches incremented pseudo.

        * v850/v850.c (v850_reorg): Call alter_subreg.  Delete subreg support.

Fri Oct 23 11:11:56 1998  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * rtl.def (POST_MODIFY, PRE_MODIFY): New generalized operators for
        addressing modes with side effects.  These are currently
        placeholders for the C4x target.

Thu Oct 22 16:46:35 1998  Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>

        * loop.c (express_from): Make sure that when generating a PLUS of
        a PLUS, any constant expression appears on the outermost PLUS.

Thu Oct 22 15:46:23 1998  Per Bothner (bothner@cygnus.com)

        * Makefile.in (distdir-cvs, distdir-start):  Clean up so it
        works if "$(srcdir)" != ".".

Wed Oct 21 19:23:59 1998  Jim Wilson  <wilson@cygnus.com>

        * expmed.c (store_bit_field): If need to add a SUBREG, then remove
        existing SUBREG if we can, otherwise abort.

Wed Oct 21 09:58:51 1998  Mark Mitchell  <mark@markmitchell.com>

        * c-common.c (c_apply_type_quals_to_decl): Don't crash when
        `restrict' is applied to a non-pointer variable.

Wed Oct 21 09:18:58 1998  Mark Mitchell  <mark@markmitchell.com>

        * invoke.texi: Document -flang-isoc9x.

        * Makefile.in (OBJS): Add splay-tree.o.
        (c-common.o): Depend on rtl.h.
        (splay-tree.o): List dependencies and provide build rule.
        
        * rtl.h (record_alias_subset): New function.
        * alias.c: Include splay-tree.h.
        (alias_set_entry): New type.
        (CHECK_ALIAS_SETS_FOR_CONSISTENCY): Remove.
        (DIFFERENT_ALIAS_SETS_P): Use mem_in_disjoint_alias_sets_p.
        (mems_in_disjoin_alias_sets_p): New function.
        (alias_set_compare): Likewise.
        (insert_subset_children): Likewise.
        (get_alias_set_entry): Likewise.

        * tree.h (TYPE_RESTRICT): New macro.
        (TYPE_UNQUALIFIED): New manifest constant.
        (TYPE_QUAL_CONST): Likewise
        (TYPE_QUAL_VOLATILE): Likewise.
        (TYPE_QUAL_RESTRICT): Likewise.
        (tree_type): Add restrict_flag.  Reduce count of free bits.
        (DECL_POINTER_ALIAS_SET): New macro.
        (DECL_POINTER_ALIAS_SET_KNOWN_P): Likewise.
        (tree_decl): Add pointer_alias_set.
        (build_qualified_type): New function.
        (build_type_variant): Define in terms of build_qualified_type.
        * tree.c (set_type_quals): New function.
        (make_node): Initializae DECL_POINTER_ALIAS_SET.
        (build_type_attribute_variant): Use build_qualified_type and
        set_type_quals.
        (build_type_variant): Rename, and modify, to become...
        (build_qualified_type): New function.
        (build_complex_type): Use set_type_quals.

        * c-tree.h (C_TYPE_OBJECT_P): New macro.
        (C_TYPE_FUNCTION_P): Likewise.
        (C_TYPE_INCOMPLETE_P): Likewise.
        (C_TYPE_OBJECT_OR_INCOMPLETE_P): Likewise.
        (c_apply_type_quals_to_decl): New function.
        (c_build_qualified_type): New function.
        (c_build_type_variant): Define in terms of c_build_qualified_type.
        (flag_isoc9x): Declare.
        * c-typeck.c (qualify_type): Use c_build_qualified_type.
        (common_type): Change to use TYPE_QUALS.
        (comptypes): Likewise.
        (convert_for_assignment): Likewise.
        * c-aux-info.c (gen_type): Likewise.  Deal with `restrict'.
        * c-decl.c (flag_isoc9x): Define.
        (c_decode_option): Handle -flang-isoc9x.
        (grokdeclarator): Update to handle restrict.  Use TYPE_QUALS,
        c_build_qualified_type, etc.  Use c_apply_type_quals_to_decl.
        * c-lex.c (init_lex): Deal with restrict.
        (init_lex): Don't treat restrict as a reserved word in
        -traditional mode, or without -flang-isoc9x.
        * c-lex.h (rid): Add RID_RESTRICT.
        * c-parse.gperf (restrict, __restrict, __restrict__): Make
        equivalent to RID_RESTRICT.
        * c-parse.in (TYPE_QUAL): Update comment.
        * c-common.c: Include rtl.h.
        (c_find_base_decl): New function.
        (c_build_type_variant): Rename, and modify, to become ...
        (c_build_qualified_type): New function.
        (c_apply_type_quals_to_decl): Likewise.
        (c_get_alias_set): For INDIRECT_REFs, check to see if we can find
        a particular alias set for the reference.
        * toplev.c (documented_lang_options): Add -flang-isoc9x.

Wed Oct 21 09:15:06 1998  Nick Clifton  <nickc@cygnus.com>

        * config/arm/arm.h (TARGET_SWITCHES): Document arm specific
        command line switches.

Tue Oct 20 10:04:51 1998  Graham  <grahams@rcp.co.uk>

        * reload.c (loc_mentioned_in_p): Add missing braces to bind
        else to correct if.

Mon Oct 19 16:34:05 1998  Tom Tromey  <tromey@cygnus.com>

        * gcc.c (option_map): Added --classpath and --CLASSPATH.

Tue Oct 20 10:59:02 1998  Gavin Romig-Koch  <gavin@cygnus.com>

        * regclass.c (fix_register): Add error message.
        * invoke.texi (-fcall-used-REG,-fcall-saved-REG): Note the
          new error message.

Tue Oct 20 10:12:17 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * c-decl.c (warn_missing_noreturn): New global variable.
        (c_decode_option): Check for new flags -W{no-}missing-noreturn.
        (finish_function): Implement missing noreturn warning.

        * c-tree.h (warn_missing_noreturn): Declare extern.

        * invoke.texi: Document new flags.

        * toplev.c (documented_lang_options): Add description.

Tue Oct 20 22:16:11 1998  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.c (c4x_parallel_process): Disable until BCT
        loop optimization stable for the C4x.
        (c4x_rptb_info_t, c4x_dump, c4x_rptb_in_range, c4x_rptb_unjumped_loop,
        c4x_rptb_find_comp_and_jump, c4x_rptb_loop_info_get,
        c4x_rptb_emit_init, c4x_rptb_process): Deleted (superceded by BCT
        loop optimization).
        (c4x_address_conflict): Be more paranoid when packing a volatile
        memref in a parallel load/store.

Tue Oct 20 21:56:05 1998  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.md (repeat_block_top, repeat_block_end,
        repeat_block_filler): Deleted.
        (*ashlqi3_set, *ashrqi3_const_set, *ashrqi3_nonconst_clobber):
        Condition code not set if destination register from 'c' class.
        (*subbqi3_carry_clobber): Fix typo.

1998-10-18 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

        * reorg.c (steal_delay_list_from_target) Check for insns that
        modify the condition codes and effect the direction of the jump
        in the sequence.

Sat Oct 17 13:09:09 1998  Graham  <grahams@rcp.co.uk>

        * function.c (purge_addressof_1): Replace call to
        emit_insns_before() with emit_insn_before().

Mon Oct 19 19:34:03 1998  Mike Stump <mrs@wrs.com>

        * libgcc2.c (__pure_virtual): Call __terminate instead of _exit.

Mon Oct 19 13:26:24 1998  Bernd Schmidt <crux@pool.informatik.rwth-aachen.de> 

        * jump.c (sets_cc0_p): Compile only if HAVE_cc0.

Mon Oct 19 11:40:56 1998  Jeffrey A Law  (law@cygnus.com)

        * gcse.c (compute_hash_table): Correctly identify hard regs which are
        clobbered across calls.

        * loop.c (scan_loop): Be more selective about what invariants are
        moved out of a loop.

Mon Oct 19 10:46:58 PDT 1998 Jeff Law  (law@cygnus.com)

        * version.c: Bump for snapshot.

Mon Oct 19 11:40:56 1998  Jeffrey A Law  (law@cygnus.com)

        * libgcc2.c (eh_context_static): Do not call malloc to allocate the
        static eh_context structure.

Mon Oct 19 10:45:40 1998  Bernd Schmidt <crux@pool.informatik.rwth-aachen.de> 

        * combine.c (recog_for_combine): Lose PADDED_SCRATCHES arg.  All
        callers changed.
        (try_combine): Don't update max_scratch.
        * flow.c (max_scratch, num_scratch): Delete variables.
        (life_analysis_1): Don't initialize max_scratch.
        (propagate_block): Don't update max_scratch.
        (mark_set_1): Don't increment num_scratch.
        * regs.h (max_scratch): Delete declaration.

Mon Oct 19 10:28:15 1998  Jeffrey A Law  (law@cygnus.com)

        * reload1.c (reload_reg_free_before_p): Hack.  Return 0 if EQUIV
        is nonzero.  This is temporary!

        * sched.c (update_flow_info): Handle death notes made invalid by
        instruction splitting.  Partially reverts Oct 15, 1998 patch.
        * haifa-sched.c (update_flow_info): Likewise.

Sun Oct 18 17:31:26 1998  Jeffrey A Law  (law@cygnus.com)

        * function.c (uninitialized_vars_warning): Do not warn for a VAR_DECL
        if it has a nonzero DECL_INITIAL.

Sat Oct 17 23:18:08 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * Makefile.in (flow.o): Depend on recog.h.

        * cpplib.h (directive_table): Add missing initializiers.
        (finclude): Change type of variable `bsize' to size_t.
        
        * cse.c (rtx_cost): Mark parameter `outer_code' with ATTRIBUTE_UNUSED.

        * dwarfout.h (dwarfout_label): Wrap prototype in macro RTX_CODE.

        * fix-header.c (lookup_std_proto): Cast the result of `strlen' to
        `int' when comparing against one.
        (cpp_file_line_for_message): Mark parameter `pfile' with
        ATTRIBUTE_UNUSED.
        (cpp_fatal): Mark parameter `pfile' with ATTRIBUTE_UNUSED.

        * flow.c: Include recog.h.
        (sbitmap_copy): Cast arguments 1 & 2 of `bcopy' to (PTR).

        * function.c (thread_prologue_and_epilogue_insns): Mark parameter
        `f' with ATTRIBUTE_UNUSED.
        (reposition_prologue_and_epilogue_notes): Likewise.

        * genopinit.c (gen_insn): Cast argument of ctype functions to
        `unsigned char'.

        * haifa-sched.c: Include recog.h.
        (blockage_range): Cast result of UNIT_BLOCKED macro to (int) when
        comparing against one.

        * libgcc2.a (__throw): Revert ATTRIBUTE_UNUSED change for now.

        * mips-tfile.c (parse_end): Cast the argument of ctype function to
        `unsigned char'.
        (parse_ent): Likewise.
        (parse_input): Likewise.

        * optabs.c (init_libfuncs): Likewise.

        * protoize.c (find_rightmost_formals_list): Likewise.

        * recog.h (const_double_operand): Fix typo in prototype.

        * tlink.c (scan_linker_output): Cast the argument of ctype
        function to `unsigned char'.

        * toplev.c (check_lang_option): Cast the result of `strlen' to
        `int' when comparing against one.

Sat Oct 17 13:09:09 1998  Graham  <grahams@rcp.co.uk>

        * gcse.c (dump_cuid_table): Correct typo.

Sat Oct 17 11:02:47 1998  Nick Clifton  <nickc@cygnus.com>

        * toplev.c (display_help): Prepend '-m' to target specific
        options. 
        (check_lang_option): Ignore text after end of first word of a
        language specific option.

Sat Oct 17 02:26:03 1998  Bernd Schmidt <crux@pool.informatik.rwth-aachen.de> 

        * reload1.c (reg_used_by_pseudo): New static variable.
        (choose_reload_regs): Initialize it.
        Use it instead of testing spill_reg_order to determine whether a
        pseudo is live in a hard register across the current insn.
        Fix a typo in a reference to reload_reg_rtx.

        * flow.c (propagate_block): Replace code that computes and uses
        regs_sometimes_live with simpler code that just walks the set of
        currently live registers.

        * Makefile.in (insn-extract.o): Fix dependencies.
        * genextract.c (main): Generate includes for insn-config.h and
        recog.h.
        Delete generation of declarations which are now in recog.h.
        * genrecog.c (main): Delete generation of definitions which are
        now in recog.c.
        * local-alloc.c (block_alloc): Use extract_insn and the variables
        it sets up instead of looking up values by insn_code.
        * recog.c (recog_operand, recog_operand_loc, recog_dup_loc,
        recog_dup_num): Define here instead of generating the definition in
        genrecog.c.
        (recog_n_operands, recog_n_dups, recog_n_alternatives,
        recog_operand_mode, recog_constraints, recog_operand_address_p):
        New variables.
        (extract_insn): New function.
        * recog.h (extract_insn): Declare function.
        (which_alternative, recog_n_operands, recog_n_dups,
        recog_n_alternatives, recog_operand_mode, recog_constraints,
        recog_operand_address_p): Declare variables.
        * regclass.c (n_occurrences): New static function.
        * reload.c (n_occurrences): Delete function.
        (find_reloads): Use extract_insn.
        * reload.h (n_occurrences): Delete declaration.

Sat Oct 17 01:17:51 1998  Jeffrey A Law  (law@cygnus.com)

        * reload1.c (reload_as_needed): Fix test for when to call
        update_eliminable_offsets.

Fri Oct 16 20:40:50 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        Fix consistency problems with reg_equiv_{mem,address};
        Improve reload inheritance;

        * reload.c (reload_out_reg): New variable.
        (loc_mentioned_in_p, remove_address_replacements): New functions.
        (remove_replacements): Deleted.
        (push_reload): Set reload_out_reg[i].
        When merging, also set reload_{in,out}_reg[i], and remove
        duplicate address reloads.
        (combine_reloads): Copy reload_out_reg[i].
        (find_reloads): Do make_memloc substitution also when
        reg_equiv_memory_loc[regno] and num_not_at_initial_offset
        are both nonzero.
        Include *recog_operand_loc in commutativity operand changes.
        Generate optional output reloads.
        Delete reference to n_memlocs.  Don't set *recog_operand_loc before
        processing operands.  Call make_memloc in reg_equiv_address code.
        Set *recog_operand_loc only after processing operands, and only
        if replace is true.  Return a value.
        When changing address reload types for operands that didn't get
        reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
        RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
        Don't emit USEs for pseudo SUBREGs when not replacing.
        (find_reloads_address): Do make_memloc substitution also when
        reg_equiv_memory_loc[regno] and num_not_at_initial_offset
        are both nonzero.
        (find_reloads_toplev): Likewise.
        Call make_memloc in reg_equiv_address code.
        (debug_reload_to_stream): Add code to output reload_out_reg.
        (make_memloc): Delete local variable i, ifdefed out code, and
        references to memlocs and n_memlocs.
        (memlocs, n_memlocs): Delete.
        (push_secondary_reload): Clear reload_out_reg.
        (find_reloads_address_1): Provide memrefloc argument to all calls
        to find_reloads_address.
        In AUTO_INC code, handle non-directly addressable equivalences properly.
        * reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
        (find_reloads): Add return type.
        (remove_address_replacements, deallocate_reload_reg): Declare.
        * reload1.c (num_not_at_initial_offset): No longer static.
        (delete_address_reloads, delete_address_reloads_1): Likewise.
        (deallocate_reload_reg): New function.
        (spill_reg_stored_to): New array.
        (eliminate_regs): Don't substitute from reg_equiv_memory_loc.
        (eliminate_regs_in_insn): Move assignments of previous_offset and
        max_offset fields, and recalculation of num_not_at_initial_offset
        into new static function:
        (update_eliminable_offsets) .
        (reload_as_needed): Call update_eliminable_offsetss after calling
        find_reloads.
        Call forget_old_reloads_1 with contents of reloaded auto_inc
        expressions if the actual addressing can't be changed to match the
        auto_inc.
        (choose_reload_regs): For inheritance, replace
        reload_reg_free_before_p test with reload_reg_used_at_all test, and
        remove stand-alone reload_reg_used_at_all test.
        Use reload_out_reg to determine which reload regs have output reloads.
        Treat reload_override_in more similar to inherited reloads.
        Handle (subreg (reg... for inheritance.
        For flag_expensive_optimizations, add an extra pass to remove
        unnecessary reloads from known working inheritance.
        Delete obsolete code for pseudos replaced with MEMs.
        Handle inheritance from auto_inc expressions.
        (emit_reload_insns): If reload_in is a MEM, set OLD to 
        reload_in_reg[j].
        Don't reload directly from oldequiv; if it's a pseudo with a
        stack slot, use reload_in[j].
        Check that reload_in_reg[j] is a MEM before replacing reload_in
        from reg_reloaded_contents.
        Include non-spill registers in reload inheritance processing.
        Also try to use reload_out_reg to set spill_reg_store /
        reg_last_reload_reg.
        In code to set new_spill_reg_store, use single_set to find out if
        there is a single set.
        Add code that allows to delete optional output reloads.
        Add code to allow deletion of output reloads that use no spill reg.
        At the end, set reload_override_in to oldequiv.
        Also call delete_output_reload if reload_out_reg is equal to old
        in oldequiv code.
        Add code to call delete_output_reload for stores with no matching load.
        Set / use spill_reg_stored_to.
        Handle case where secondary output reload uses a temporary, but
        actual store isn't found.
        When looking for a store of a value not loaded in order to call
        delete_output_reload, count_occurences should return 0 for no
        loads; but discount inherited input reloadill_reg_stored_to.
        Do checks for extra uses of REG.  Changed all
        callers.
        Use delete_address_reloads.
        (reload): Take return value of find_reloads into account.
        If a no-op set needs more than one reload, delete it.
        (reload_reg_free_before_p): RELOAD_FOR_INPUT
        can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
        for the same operand.
        (clear_reload_reg_in_use): Check for other reloads that keep a
        register in use.
        (reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
        RELOAD_FOR_OPADDR_ADDR.
        Take into account when an address address reload is only needed
        for the address reload we are considering.
        (count_occurrences): Use rtx_equal_p for MEMs.
        (inc_for_reload): Return instruction that stores into RELOADREG.
        New argument two, IN, and rtx.  Changed all callers.
        (calculate_needs_all_insns, reload_as_needed):
        Don't clear after_call for a CLOBBER.
        Keep track of how many hard registers need to be copied from
        after_call, and don't clear after_call before we have seen
        that much copies, or we see a different instruction.

Fri Oct 16 10:58:23 1998  Jeffrey A Law  (law@cygnus.com)

        * flow.c (find_basic_blocks_1): Do not delete unreachable blocks
        after reload has completed.

Fri Oct 16 17:26:10 1998  Dave Brolley  <brolley@cygnus.com>

        * cpplib.c (cpp_get_token): Replace whitespace that occurs between
        a macro name and the next token with a single blank if that whitespace
        is in a macro buffer and the next token is not '('.

Fri Oct 16 15:44:02 1998  Dave Brolley  <brolley@cygnus.com>

        * cccp.c (rescan): Handle multibyte chartacters ending in backslash.
        (rescan): Ditto.
        (skip_if_group): Ditto.
        (skip_to_end_of_comment): Ditto.
        (macarg1): Ditto.
        (discard_comments): Ditto.
        (change_newlines): Ditto.

Fri Oct 16 15:26:24 1998  Dave Brolley  <brolley@cygnus.com>

        * c-lex.c (yylex): Fix unaligned access of wchar_t.

Fri Oct 16 10:47:53 1998  Nick Clifton  <nickc@cygnus.com>

        * config/arm/arm.h (TARGET_SWITCHES): Add --help documentation.
        (TARGET_OPTIONS): Add --help documentation.

Fri Oct 16 11:49:01 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * rtl.h (sets_cc0_p): Revert Oct 14 ATTRIBUTE_NORETURN change.

Fri Oct 16 07:08:46 1998  Bruce Korb <korb@datadesign.com>
        
        * fixinc/* Moved in from ../contrib directory in preparation
        for integrating it into the normal build process.  In particular,
        fixinc/Makefile.in must be config-ed into the build directory
        as fixinc/Makefile.  Proposed patches to ./Makefile.in and
        ./configure.in will be "in the mail" momentarily.

Fri Oct 16 08:13:46 1998  David S. Miller  <davem@pierdol.cobaltnet.com>

        * cse.c (cse_basic_block): Fixup hash flushing loop so we do not
        accidently walk into the free list.  Comment how that can happen.
        (invalidate): Fix indentation.

Thu Oct 15 23:53:29 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
                         Jeffrey A Law  (law@cygnus.com)

        * flow.c (life_analysis_1): Do not clobber regs_ever_live after
        reload.  Never perform rescans of the insn chain after reload.
        (propagate_block): Do not delete insn or create new autoinc addressing
        modes after reload.

        * jump.c (jump_optimize): Unconditionally use the code that was
        previously conditional on PRESERVE_DEATH_INFO_REGNO_P.
        * reload1.c (reload): When reloading is finished, delete all
        REG_DEAD and REG_UNUSED notes.
        (emit_reload_insns): Delete all code that was conditional on
        PRESERVE_DEATH_INFO_REGNO_P.
        (no_longer_dead_regs): Delete variable.
        (reload_cse_delete_death_notes): Delete function.
        (reload_cse_no_longer_dead): Delete function.
        (reload_cse_regs_1): Delete all code to handle deletion of death
        notes.
        (reload_cse_noop_set_p): Likewise.
        (reload_cse_simplify_set): Likewise.
        (reload_cse_simplify_operands): Likewise.
        (reload_cse_move2add): Likewise.
        * reorg.c (used_spill_regs): Delete declaration.
        (max_label_num_after_reload): Delete declaration.
        (find_dead_or_set_registers): Don't assume that spill regs are
        dead at a CODE_LABEL.
        * rtlanal.c (dead_or_set_regno_p): Death notes are always accurate,
        even after reload.
        * sched.c (sched_analyze_insn): Likewise.
        (update_flow_info): Likewise.
        * haifa-sched.c (sched_analyze_insn): Likewise.
        (update_flow_info): Likewise.
        * tm.texi (PRESERVE_DEATH_INFO_REGNO_P): Delete documentation.
        * toplev.c (max_label_num_after_reload): Delete variable.
        (rest_of_compilation): Don't set max_label_num_after_reload.
        Call life_analysis after reload_cse_regs if optimizing.
        * config/gmicro/gmicro.h: Delete comment referring to
        PRESERVE_DEATH_INFO_REGNO_P.
        * config/i386/i386.h: Likewise.
        * config/m88k/m88k.h: Likewise.
        * config/m32r/m32r.h (PRESERVE_DEATH_INFO_REGNO_P): Delete definition.
        * config/sh/sh.h: Likewise.

Thu Oct 15 19:48:41 1998  David Edelsohn  <edelsohn@mhpcc.edu>

        * loop.c (strength_reduce): Restore marking bct_p as
        ATTRIBUTE_UNUSED.
        * rs6000.c (optimization_options): Change #ifdef HAIFA to
        HAVE_decrement_and_branch_on_count.
        (small_data_operand): Remove TARGET_ELF condition for marking
        parameters ATTRIBUTE_UNUSED.
        
Thu Oct 15 11:45:51 1998  Robert Lipe  <robertl@dgii.com>

        * config/i386/sco5.h (MAX_OFILE_ALIGNMENT):  Define.
        (SELECT_SECTION): Resync with svr4.h.

Thu Oct 15 12:42:13 1998  David Edelsohn  <edelsohn@mhpcc.edu>

        * loop.c (strength_reduce): Undo Oct 14 change marking bct_p
        ATTRIBUTE_UNUSED.

Thu Oct 15 00:57:55 1998  Robert Lipe  <robertl@dgii.com>

        * c-pragma.c (handle_pragma_token): Test for null tree before
        dereferencing TREE_CODE.

Thu Oct 15 17:36:48 1998  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.c: Convert to use GEN_INT.
        (c4x_parallel_process): Rework to handle new repeat loop structure.

        * config/c4x/c4x.md: Convert to use GEN_INT. 
        (rptb_end): Convert to use GE test.  Replace uses with clobbers.
        (decrement_and_branch_on_count): Likewise.

        * config/c4x/c4x.h (REPEAT_BLOCK_PROCESS): Deleted hook now that
        loop.c has the desired functionality.
        (rc_reg_operand): New prototype.

        * config/c4x/t-c4x: Can now build all front ends.

Wed Oct 14 23:27:08 1998  Didier FORT (didier.fort@fedex.com)

        * fixincludes: Fix up rpc/{clnt,svr,xdr}.h for SunOS.

Wed Oct 14 22:13:28 1998  Joel Sherrill (joel@OARcorp.com)

        * Makefile.in (stmp-fixinc): Do not install assert.h if not desired.
        * config/t-rtems: Do not install assert.h -- use newlib's.

Wed Oct 14 21:57:08 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * combine.c (combine_instructions): When finished, call init_recog.
        * regmove.c (optimize_reg_copy_3): Reject volatile MEMs.

Wed Oct 14 16:10:22 1998  Per Bothner  <bothner@cygnus.com>

        * toplev.c:  If flag_syntax_only, don't open or write assembler file.

Wed Oct 14 13:26:05 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * cppalloc.c (memory_full): Mark function prototype with
        ATTRIBUTE_NORETURN.

        * demangle.h (collect_exit): Likewise.

        * fix-header.c (v_fatal, fatal): Likewise.

        * gcc.c (pfatal_with_name, pfatal_pexecute, fatal, fancy_abort):
        Likewise.

        * gcov.c (print_usage): Likewise.

        * genattr.c (fatal, fancy_abort): Likewise.

        * genattrtab.c (fatal, fancy_abort): Likewise.

        * gencodes.c (fatal, fancy_abort): Likewise.

        * genconfig.c (fatal, fancy_abort): Likewise.

        * genemit.c (fatal, fancy_abort): Likewise.

        * genextract.c (fatal, fancy_abort): Likewise.

        * genflags.c (fatal, fancy_abort): Likewise.

        * genopinit.c (fatal, fancy_abort): Likewise.

        * genoutput.c (fatal, fancy_abort): Likewise.

        * genpeep.c (fatal, fancy_abort): Likewise.

        * genrecog.c (fatal, fancy_abort): Likewise.

        * libgcc2.c (__eprintf, __default_terminate, __sjthrow,
        __sjpopnthrow, __throw): Likewise.

        * objc/objc-act.c (objc_fatal): Likewise.

        * protoize.c (usage, aux_info_corrupted,
        declare_source_confusing): Likewise.

        * rtl.c (dump_and_abort): Likewise.

        * rtl.h (sets_cc0_p): Likewise.

        * toplev.c (float_signal, pipe_closed): Likewise.
        
1998-10-14  Andreas Schwab  <schwab@issan.cs.uni-dortmund.de>

        * dwarf2out.c (expand_builtin_dwarf_reg_size): Look at all ranges
        when generating the decision tree for the general case.

        * config/m68k/m68k.h (HARD_REGNO_MODE_OK): Don't accept modes
        wider that 12 bytes in fpu regs or wider than 8 byte in fpa regs.

Wed Oct 14 11:14:02 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * Makefile.in (sched.o): Depend on recog.h.

        * alias.c (REG_BASE_VALUE): Cast the result of REGNO() macro to
        (unsigned) when comparing against one.
        (find_base_value): Likewise.
        (record_base_value): Cast variable `regno' to (unsigned) when
        comparing against one.  Cast the result of REGNO() macro to
        (unsigned) when comparing against one.
        (memrefs_conflict_p): Change type of variables `r_x' and `r_y'  to
        unsigned.
        (init_alias_analysis): Add unsigned variable `ui'.  Use it as loop
        variable where an unsigned index is needed.

        * caller-save.c (init_caller_save): Cast `-1' to (enum insn_code)
        before comparing against one.

        * collect2.c: Add prototypes for functions `error', `fatal' and
        `fatal_perror'.  Make these functions take variable arguments
        instead of faking it with a fixed number of args.
        (write_c_file_stat): Cast the argument of ctype macro to (unsigned
        char).

        * combine.c (can_combine_p): Mark parameter `pred' with
        ATTRIBUTE_UNUSED.
        (find_split_point): Cast variable `src' to (unsigned
        HOST_WIDE_INT) when comparing against one.
        (simplify_rtx): Cast 1 to (unsigned HOST_WIDE_INT) in shift.
        (simplify_logical): Likewise.
        (force_to_mode): Cast result of INTVAL() macro to (unsigned
        HOST_WIDE_INT) when comparing against one.  Cast 1 to (unsigned
        HOST_WIDE_INT) in shift.
        (simplify_and_const_int): Cast result of INTVAL() macro to
        `unsigned HOST_WIDE_INT' when comparing against one.
        (merge_outer_ops): Cast variable const0 to `unsigned
        HOST_WIDE_INT' when comparing against the result of
        GET_MODE_MASK() macro.
        (simplify_comparison): Likewise for variable `c0'.  Cast variable
        `const_op' to `unsigned HOST_WIDE_INT' when comparing against
        one.  Cast `1' to `unsigned HOST_WIDE_INT' in shift.  Cast the
        result of `GET_MODE_MASK()/2' to `HOST_WIDE_INT' when comparing
        against one.  Cast `1' to `unsigned HOST_WIDE_INT' in shift.  Cast
        result of INTVAL() macro to `unsigned HOST_WIDE_INT' when
        comparing against one.
        (distribute_notes): Wrap variable `cc0_setter' in macro `HAVE_cc0'.

        config/mips/mips.c (gen_int_relational): Cast result of INTVAL()
        macro to `unsigned HOST_WIDE_INT' when comparing against one.
        (output_block_move): Cast `sizeof' expression to (int) when
        comparing against one.
        (function_arg): Cast BITS_PER_WORD to `unsigned' when comparing
        against one.
        (save_restore_insns): Cast `base_offset' to `long' to match format
        specifier in fprintf.

        * config/mips/mips.h (Pmode): Cast the result of `Pmode' macro
        to `enum machine_mode'.

        * flow.c (life_analysis_1): Remove unused variable `insn'.

        * gcc.c (translate_options): Move variables `j' and `k' into the
        scope in which they are used.  Change their types to `size_t'.
        (set_spec): Cast the argument of ctype macro to `unsigned char'.
        (read_specs): Likewise.
        (process_command): Cast `sizeof' to (int) when comparing against one.
        (do_spec_1): Cast the argument of ctype macro to `unsigned char'.
        (handle_braces): Cast both sides of `==' expression to `long' to
        ensure sign matching.
        (main): Cast variable `i' to `int' when comparing against one.

        * gcov-io.h (__fetch_long): Change type of parameter `bytes' from
        int to size_t.  Cast variable `i' to size_t when comparing against
        one.

        * genattrtab.c (convert_set_attr_alternative): Remove unused
        parameter `insn_code'.  All callers changed.
        (convert_set_attr): Likewise.

        * genrecog.c (add_to_sequence): Cast result of XVECLEN() macro to
        size_t when comparing against one.  Likewise for variable `len'.

        * global.c (global_alloc): Cast variable `max_regno' to size_t
        when comparing against one.  Likewise for variable `max_allocno'.

        * jump.c (sets_cc0_p): Mark parameter `x' with ATTRIBUTE_UNUSED.

        * local-alloc.c (validate_equiv_mem_from_store): Mark parameter
        `set' with ATTRIBUTE_UNUSED.
        (find_free_reg): Cast `sizeof' expression to (int) when comparing
        against one.

        * loop.c (count_loop_regs_set): Remove unused variable `dest'.
        (strength_reduce): Mark parameter `bct_p' with ATTRIBUTE_UNUSED.
        (get_condition): Cast variable `const_val' to `unsigned
        HOST_WIDE_INT' when comparing against one.  Cast unsigned
        expression to HOST_WIDE_INT when comparing against one.
        (insert_loop_mem): Mark parameter `data' with ATTRIBUTE_UNUSED.
        (load_mems_and_recount_loop_regs_set): Cast variable `nregs' to
        `unsigned' when comparing against one.

        * protoize.c (is_id_char): Change type of parameter `ch' to
        unsigned char.
        (munge_compile_params): Cast argument of ctype macro to (const
        unsigned char).
        (process_aux_info_file): Cast variable `aux_info_size' to int when
        comparing against one.
        (forward_to_next_token_char): Cast argument of ctype macro to
        `const unsigned char'.
        (edit_formals_lists): Likewise.
        (find_rightmost_formals_list): Likewise.
        (add_local_decl): Likewise.
        (add_global_decls): Likewise.
        (edit_fn_definition): Likewise.
        (do_cleaning): Likewise.
        (scan_for_missed_items): Likewise.
        (edit_file): Cast variable `orig_size' to (int) when comparing
        against one.
        (main): Cast argument of ctype macro to `const unsigned char'.

        * recog.c (const_int_operand): Mark parameter `mode' with
        ATTRIBUTE_UNUSED.

        * regclass.c (record_reg_classes): Change type of variable `c' to
        `unsigned char'.  Cast `char' array index to `unsigned char'.

        * reload.c (push_secondary_reload): Cast argument to
        REG_CLASS_FROM_LETTER() macro to `unsigned char'.

        * reload1.c (calculate_needs): Cast `char' array index to
        `unsigned char'.
        (set_label_offsets): Change type of variable `i' to unsigned int.
        Cast result of XVECLEN() macro to unsigned when comparing against
        one.
        (mark_not_eliminable): Change type of variable `i' to unsigned.
        (order_regs_for_reload): Likewise.  Cast `max_regno' to unsigned
        when comparing against one.
        (reload_as_needed): Cast macro NUM_ELIMINABLE_REGS to (int) when
        comparing against one.
        (choose_reload_regs): Hide unused label `fail'.
        (reload_cse_simplify_operands): Cast `char' array index to
        `unsigned char'.
        (reload_combine_note_store): Mark parameter `set' with
        ATTRIBUTE_UNUSED.  Cast UNITS_PER_WORD to unsigned when comparing
        against one.
        (reload_cse_move2add): Remove unused variable `src2'.

        * sched.c: Include recog.h.
        (sched_note_set): Remove unused parameter `b'.  All callers
        changed.
        (split_hard_reg_notes): Likewise for parameter `orig_insn'.
        (blockage_range): Cast result of UNIT_BLOCKED() macro to (int)
        when comparing against one.

        * stupid.c (stupid_find_reg): Mark parameter `changes_size' with
        ATTRIBUTE_UNUSED.  Cast `sizeof' expression to (int) when
        comparing against one.

        * unroll.c (precondition_loop_p): Remove unused parameter
        `loop_end'.  All callers changed.

Tue Oct 13 22:12:11 1998  Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>

        * reload1.c (maybe_fix_stack_asms): New static function.
        (reload): Call it.

        * reload.h (compute_use_by_pseudos): Declare.

        * reload1.c (spilled_pseudos, insns_need_reload): New variables.
        (something_needs_reloads): Delete variable.
        (finish_spills): New function.
        (compute_use_by_pseudos): New function.

        (delete_caller_save_insns): Lose argument FIRST.  All callers changed.
        Use the reload_insn_chain instead of walking the rtl directly.

        (reload): Allocate and free spilled_pseudos.
        Ensure that all calls of spill_hard_reg are followed by a call to
        finish_spills.
        Use the insns_need_reload list instead of something_needs_reloads
        to find out if reload_as_needed must be called.
        Clear unused_insn_chains at the end.

        (calculate_needs_all_insns): Lose FIRST parameter.  All callers
        changed.
        Delete code to keep track of current basic block.
        Walk reload_insn_chain instead of the rtl structure.  Build the
        insns_need_reload chain.
        Remember which insns need reloading/elimination by setting the
        appropriate fields in struct insn_chain, not by putting modes on the
        insn.

        (calculate_needs): Lose THIS_BLOCK arg.  Accept arg CHAIN instead of
        arg INSN.  All callers changed.
        Delete declaration of struct needs.
        Don't set something_needs_reloads.
        Record insn needs in the CHAIN argument.

        (spill_hard_reg): Record the affected pseudos in spilled_pseudos.

        (reload_as_needed): Lose FIRST arg.  All callers changed.
        Walk the reload_insn_chain instead of the rtx structure.
        Delete code to keep track of current basic block.
        Rename one of the NEXT variables to OLD_NEXT.

        (allocate_reload_reg): Accept arg CHAIN instead of arg INSN.  All
        callers changed.
        (choose_reload_regs): Likewise.

        (emit_reload_insns): Replace INSN and BB args with arg CHAIN.  All
        callers changed.
        
        * caller-save.c (MOVE_MAX_WORDS): New macro.  Use it throughout
        instead of (MOVE_MAX / UNITS_PER_WORD) computation.
        (hard_regs_live, hard_regs_need_restore): Delete variables.
        (n_regs_saved): Now static.
        (referenced_regs, this_insn_sets): New variables.

        (setup_save_areas): Restructure the code a bit.

        (restore_referenced_regs): Delete function.
        (mark_referenced_regs): New function, similar to the old
        restore_referenced_regs, but mark registers in referenced_regs.

        (clear_reg_live): Delete function.
        (mark_set_regs): Renamed from set_reg_live.  All callers changed.
        Only mark registers in this_insn_sets.

        (save_call_clobbered_regs): Rework this function to walk the
        reload_insn_chain instead of using the list of instructions directly.
        Delete code to keep track of register lives, compute live regs on the
        fly from information in the chain.
        Instead of calling restore_referenced_regs, use mark_referenced_regs,
        then walk the set it computes and call insert_restore as appropriate.

        (insert_restore): Lose INSN and BLOCK args.  Add CHAIN arg.  All
        callers changed.
        Restructure the code a bit.  Test hard_regs_saved instead of
        hard_regs_need_restore.
        (insert_save): Lose INSN and BLOCK args.  Add CHAIN and TO_SAVE
        args.  All callers changed.
        Restructure the code a bit.  Use TO_SAVE to determine which regs to
        save instead of more complicated test.
        (insert_one_arg): Lose INSN and BLOCK args.  Add CHAIN arg.  All
        callers changed.
        Create a new insn_chain structure for the new insn and place it
        into the chain.

        * rtl.texi: Update documentation to reflect that reload no longer
        puts modes on the insns.

1998-10-14  Andreas Schwab  <schwab@issan.cs.uni-dortmund.de>

        * function.c (purge_addressof_1): Force the first argument of a
        CALL insn to memory.

Wed Oct 14 00:38:40 1998  Jeffrey A Law  (law@cygnus.com)

        * rtl.h: Delete duplicate prototypes.  Add some missing
        prototypes.
        * rtlanal.c: (for_each_rtx): Formatting tweak.

1998-10-13 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

        * real.c (emdnorm and etoasc): Disable round to even for c4x target
        to be compatible with TI compiler.

        * Makefile.in (USER_H): Add va-c4x.h to definition.

Tue Oct 13 23:03:37 1998  Richard Henderson  <rth@cygnus.com>

        * function.c (purge_addressof_1): Fix typo in inequality: do
        bitfield optimization for equal mode sizes.
        * expmed.c (store_bit_field): Don't take subregs of subregs in
        the movstrict case.  Tidy a potential problem in the multi-word case.
        (extract_bit_field): Likewise.

Tue Oct 13 22:12:11 1998  Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>

        * flow.c (find_basic_blocks): Emit NOPs after normal calls in this
        function.
        Compute max_uid_for_flow by calling get_max_uid after the scan.
        (find_basic_blocks_1): Don't emit NOPs here.

Tue Oct 13 22:05:49 1998  Richard Henderson  <rth@cygnus.com>

        * alias.c (base_alias_check): Accept new args for the modes of the
        two references.  Use them to determine if an AND can overlap.  Update
        all callers.
        (memrefs_conflict_p): Assume sizes are aligned, and uses them
        to determine if an AND can overlap.

Tue Oct 13 17:51:04 1998  Jim Wilson  <wilson@cygnus.com>

        * config/m68k/m68k.h (HARD_REGNO_MODE_OK): For FP regs, add REGNO >= 16
        check.  Add comment to document problems with TARGET_SUN_FPA version
        of this macro.
        * config/m68k/m68k.md (movxf+1): Support 'r'/'r' moves.

Tue Oct 13 17:46:18 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * Makefile.in (gencheck.o): Depend on gansidecl.h.

        * c-common.c (print_char_table): Add missing initializers.
        (scan_char_table): Likewise.
        (time_char_table): Likewise.

        * c-decl.c (c_decode_option): Mark parameter `argc' with
        ATTRIBUTE_UNUSED.
        (declare_parm_level): Mark parameter `definition_flag' with
        ATTRIBUTE_UNUSED.

        * c-lex.c (readescape): Use `(unsigned)1' in shift.
        (yylex): Likewise.  Cast `sizeof' to an (int) when comparing
        against one.

        * calls.c (store_one_arg): Remove unused parameter `fndecl'.  All
        callers changed.
        (emit_call_1): Mark parameters `fndecl' and `funtype' with
        ATTRIBUTE_UNUSED.
        (expand_call): Cast result of MIN() to (unsigned int) when
        comparing against an unsigned value.

        * cccp.c (pcfinclude): Remove unused parameter `limit'.  All
        callers changed.
        (make_definition): Remove unused parameter `op'.  All callers
        changed.
        (create_definition): Cast REST_EXTENSION_LENGTH to (long) when
        comparing against the result of pointer arithmetic.

        * config/mips/mips.h (FUNCTION_ARG_BOUNDARY): Cast to (unsigned)
        when comparing against one.

        * dwarf2out.c (dwarf2out_frame_debug): Cast REGNO() and
        HARD_FRAME_POINTER_REGNUM to (unsigned) when comparing against
        one.
        (output_die): Move variable `i' into the scope in which it is
        used.  Change its type to `unsigned'.
        (output_die): Cast the result of `strlen' to (int) when passing it
        to ASM_OUTPUT_ASCII().
        (output_pubnames): Likewise.
        (output_line_info): Likewise.

        * emit-rtl.c (global_rtl): Add missing initializers.

        * explow.c (promote_mode): Mark parameter `for_call' with
        ATTRIBUTE_UNUSED.

        * expmed.c (expand_shift): Cast the result of GET_MODE_BITSIZE to
        `unsigned HOST_WIDE_INT' when comparing against one.
        (synth_mult): Change type of variable `cost' to int.
        (emit_store_flag): Use `(unsigned HOST_WIDE_INT) 1' in shift.

        * expr.c (copy_blkmode_from_reg): Cast BITS_PER_WORD to (unsigned)
        when comparing against one.
        (get_inner_reference): Change variable `alignment' to unsigned.
        (expand_expr): Cast the result of GET_MODE_ALIGNMENT to (unsigned
        int) when comparing against one.
        (expand_builtin_setjmp): Change type of variable `i' to size_t.

        * fold-const.c (div_and_round_double): Cast BASE to
        (HOST_WIDE_INT) when comparing against one.

        * gencheck.c: Include gansidecl.h.
        (main): Mark parameter `argv' with ATTRIBUTE_UNUSED.

        * optabs.c (gen_cond_trap): Mark parameters `code', `op2' and
        `tcode' with ATTRIBUTE_UNUSED.

        * real.c (edivm): Cast constant value to (unsigned long) in
        expression compared against an unsigned value.

        * stmt.c (expand_return): Cast BITS_PER_WORD to (unsigned) when
        comparing against one.
        (expand_end_case): Cast CASE_VALUES_THRESHOLD to (unsigned int)
        when comparing against one.

        * stor-layout.c (mode_for_size): Cast MAX_FIXED_MODE_SIZE to
        (unsigned int) when comparing against one.  Likewise for
        GET_MODE_BITSIZE.
        (smallest_mode_for_size): Likewise.
        (save_storage_status): Mark parameter `p' with ATTRIBUTE_UNUSED.
        (restore_storage_status): Likewise.
        
        * toplev.c (debug_args): Add missing initializer.
        (f_options): Spelling correction.  Add missing initializers.
        (documented_lang_options): Likewise.
        (debug_end_source_file): Mark parameter `lineno' with
        ATTRIBUTE_UNUSED.

        * tree.c (valid_machine_attribute): Mark parameters `attr_args',
        `decl' and `type' with ATTRIBUTE_UNUSED.

        * varasm.c (decode_reg_name): Cast `sizeof' expression to (int)
        when comparing against one.
        (assemble_variable): Mark parameter `top_level' with
        ATTRIBUTE_UNUSED.
        (assemble_external_libcall): Mark parameter `fun' with
        ATTRIBUTE_UNUSED.
        (output_constant_pool): Mark parameters `fnname' and `fndecl' with
        ATTRIBUTE_UNUSED.

Tue Oct 13 12:51:04 1998  Nick Clifton  <nickc@cygnus.com>

        * config/v850/lib1funcs.asm (_udivsi3): Add .type declaration.
        Replace use of r5 with use of r19.

        * config/v850/v850.h (LINK_POINTER_REGNUM): Define.

        * config/v850/v850.c (compute_register_save_size): Allow for the
        fact that helper functions save all registers, not just those used
        by the function.
        
        Replace constant 31 with macro LINK_POINTER_REGNUM.

        * config/v850/v850.md: Use 'indirect_operand' rather than
        'memory_operand' for bit test/set/clear patterns.

Tue Oct 13 11:49:14 1998  Jason Merrill  <jason@yorick.cygnus.com>

        * mips/iris6.h (ASM_OUTPUT_WEAK_ALIAS): Call ASM_GLOBALIZE_LABEL.
        * varasm.c (assemble_start_function et al): Don't call
        ASM_GLOBALIZE_LABEL for weak symbols.

Tue Oct 13 11:37:45 1998  Nick Clifton  <nickc@cygnus.com>

        * cse.c (equiv_constant): Check for NULL return from
        gen_lowpart_if_possible().

Tue Oct 13 11:24:51 1998  Jeffrey A Law  (law@cygnus.com)

        * mn10200.md (addsi3, subsi3, negsi2): Only allow register operands.

        * collect2.c (main): Pass -EL/-EB through to the compiler.

1998-10-12 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
        
        * expr.c (push_block): Handle targets where the stack grows
        to higher addresses, but args grow to lower addresses and
        ACCUMULATE_OUTGOING_ARGS is not defined.

Tue Oct 13 08:00:52 1998  Catherine Moore  <clm@cygnus.com>

        * config/v850/v850.c (print_operand):  Extend meaning
        of 'c' operands to support .vtinherit.

Tue Oct 13 21:38:35 1998  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.c:  Convert to gen_rtx_FOO.
        Added ATTRIBUTE_UNUSED to unused function arguments.
        (rc_reg_operand): New predicate.
        (c4x_rptb_insert): New function.
        (c4x_rptb_nop_p): Recognize modified rptb_top pattern.
        (c4x_optimization_options): New function.

        * config/c4x/c4x.md: Convert to gen_rtx_FOO.
         (decrement_and_branch_on_count): New pattern.
         (rptb_top): Modified pattern to work with BCT optimization.
        
        * config/c4x/c4x.h (RC_REG): New register class.
        (rc_reg_operand): Define prototype.
        (IS_RC_REG): New macro.
        (IS_RC_OR_PSEUDO_REG): New macro.
        (IS_RC_OR_PSEUDO_REGNO): New macro.
        (OPTIMIZATION_OPTIONS): Define.

Mon Oct 12 19:57:34 1998  Jason Merrill  <jason@yorick.cygnus.com>

        * collect2.c (extract_init_priority): No priority is 65535.

Mon Oct 12 12:10:37 1998  Alexandre Oliva  <oliva@dcc.unicamp.br>
        
        * Makefile.in (build_tooldir): new variable, same as old
        $(tooldir), but without depending on $(libdir)/$(unlibsubdir)
        (GCC_FOR_TARGET): add -B$(build_tooldir)/bin/
        (bootstrap, bootstrap2, bootstrap3, bootstrap4): ditto
        
        * configure.in (gxx_include_dir): set default based on unlibsubdir
        * Makefile.in (tooldir): ditto
        (cccp.o, cpplib.o): use unlibsubdir implicitly through
        gxx_include_dir, includedir and tooldir
        (protoize.o, unprotoize.o): ditto
        
Mon Oct 12 10:50:44 1998  Nick Clifton  <nickc@cygnus.com>

        * config/arm/arm.md: Replace (reg 24) with (reg:CC 24).

        * config/arm/thumb.c (thumb_override_options): Add warning about
        PIC code not being supported just yet.

Sun Oct 11 16:49:15 EDT 1998  John Wehle  (john@feith.com)

        * flow.c: Update comment.
        (notice_stack_pointer_modification): New static function.
        (record_volatile_insns): Use it.
        (mark_regs_live_at_end): Mark the stack pointer as alive
        at the end of the function if current_function_sp_is_unchanging
        is set.
        (life_analysis_1): Set current_function_sp_is_unchanging.
        * function.c: Define it.
        (init_function_start): Initialize it.
        * output.h: Declare it.
        * reorg.c (fill_simple_delay_slots, dbr_schedule): Mark
        the stack pointer as alive at the end of the function if
        current_function_sp_is_unchanging is set.
        * i386.c (ix86_epilogue): Optimize the restoring
        of the stack pointer.

Mon Oct 12 01:22:53 PDT 1998 Jeff Law  (law@cygnus.com)

        * version.c: Bump for snapshot.

Sun Oct 11 23:04:30 1998  Robert Lipe  <robertl@dgii.com>

        * c-pragma.c (handle_pragma_token): If passed a token instead
        of a tree, use that as the pack value.

Sun Oct 11 14:21:14 1998  Mark Mitchell  <mark@markmitchell.com>

        * flow.c (find_basic_blocks_1): Fix prototype.

Sun Oct 11 05:03:41 1998  Ken Raeburn  <raeburn@cygnus.com>

        * tree.h (DECL_NO_CHECK_MEMORY_USAGE): New macros.
        (struct tree_decl): New fields no_check_memory_usage.
        * c-common.c (enum attrs): Add A_NO_CHECK_MEMORY_USAGE.
        (init_attributes): Register it as a new attribute.
        (decl_attributes): Set flags on functions given that attribute.
        * c-decl.c (duplicate_decls): Merge new attribute.
        * expr.h (current_function_check_memory_usage): Declare new var.
        * calls.c, expr.c, function.c, stmt.c, alpha.c, clipper.c, m88k.c,
        pa.c, sparc.c: Replace uses of flag_check_memory_usage with
        current_function_check_memory_usage.
        * function.h: Add field to struct function.
        * function.c (current_function_check_memory_usage): Define it.
        (push_function_context_to, pop_function_context_from): Save and
        restore it.
        (expand_function_start): Set it, based on global flag and function
        attribute.

        * expr.c (expand_expr, case VAR_DECL): In memory-checking code, do
        check non-automatic variables, to permit detection of writes to
        read-only locations in embedded systems without memory management.
        * calls.c (store_one_arg): Use ARGS_SIZE_RTX to get size of argument
        when emitting chkr_set_right_libfunc call, even if the argument is
        BLKmode or variable-sized; don't abort.

        * optabs.c (init_optabs): Create Checker and __cyg_profile_*
        symbols in Pmode, not VOIDmode.

Sun Oct 11 01:03:05 1998  Zack Weinberg  <zack@rabi.phys.columbia.edu>

        * cppexp.c: When forcing unsigned comparisons, cast both sides
        of the operation.

        * cpphash.h: Move static declaration of hashtab[]...
        * cpphash.c: ...here.

        * cpplib.c: Cast difference of two pointers to size_t before
        comparing it to size_t.  Cast signed to unsigned
        before comparing to size_t. (FIXME: struct argdata should use
        unsigned buffer sizes.)
        * cpplib.h (struct cpp_reader): Declare token_buffer_size as
        unsigned int. (CPP_WRITTEN): Cast return value to size_t.
        (CPP_RESERVE): Parenthesize N for evaluation order, cast to
        size_t before comparison.

Sun Oct 11 00:15:29 1998  Jeffrey A Law  (law@cygnus.com)

        * flow.c (find_basic_blocks): Delete "live_reachable_p" argument.
        (find_basic_blocks_1): Similarly.
        * output.h (find_basic_blocks): Fix prototype.
        * gcse.c, toplev.c: Don't pass "live_reachable_p" argument to
        find_basic_blocks anymore.

Sat Oct 10 22:00:34 1998  Richard Henderson  <rth@cygnus.com>

        * basic-block.h (EXECUTE_IF_SET_IN_SBITMAP): New macro.
        (sbitmap_free, sbitmap_vector_free): New macros.
        * output.h (rtl_dump_file): Declare.

Sat Oct 10 17:01:42 1998  Jeffrey A Law  (law@cygnus.com)

        * regmove.c (optimize_reg_copy_3): Honor TRULY_NOOP_TRUNCATION.

Fri Oct  9 22:08:05 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * fp-bit.c (SFtype): Don't implicitly use int in declaration.
        (DFtype): Likewise.
        (_fpdiv_parts): Remove unused parameter `tmp', all callers changed.
        (divide): Remove unused variable `tmp'.
        (si_to_float): Cast numeric constant to (SItype) before comparing
        it against one.

Fri Oct  9 16:03:19 1998  Graham  <grahams@rcp.co.uk>

        * flow.c (print_rtl_with_bb): Changed type of in_bb_p to match use.
        * gcc.c (add_preprocessor_option): Correct typo when allocating
        memory, sizeof() argument had one too many `*'.
        (add_assembler_option): Likewise.
        (add_linker_option): Likewise.
        * gcov.c (output_data): Likewise.
        * local-alloc.c (memref_used_between_p): Likewise.
        (update_equiv_regs): Likewise.
        * loop.c (strength_reduce): Likewise.
        * reg-stack.c (record_asm_reg_life): Likewise.
        (subst_asm_stack_reg): Likewise.
        * reorg.c (dbr_schedule): Likewise.

Fri Oct  9 15:57:51 1998  Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>

        * flow.c (life_analysis_1): Break out some functions.
        (find_basic_blocks_1): Likewise.  Also move some variables out and
        make them static.
        Rename NONLOCAL_LABEL_LIST arg to NONLOCAL_LABELS and initialize
        new static var nonlocal_label_list with it.
        (active_eh_region, nested_eh_region, label_value_list,
        nonlocal_label_list): New static variables.
        (make_edges, delete_unreachable_blocks, delete_block): New static
        functions, broken out of find_basic_blocks_1.
        (record_volatile_insns, mark_regs_live_at_end, set_noop_p,
        noop_move_p): New static functions, broken out of life_analysis_1.

Fri Oct  9 15:49:29 1998  Richard Henderson  <rth@cygnus.com>

        * expmed.c (store_bit_field): Pun non-integral str_rtx modes.
        Take extra care for op0 now possibly being a subreg.
        (extract_bit_field): Likewise.
        * function.c (purge_addressof_1): Revert Oct 4 change.  Drop
        the reg to memory if there is no equal sized integral mode.
        * stor-layout.c (int_mode_for_mode): New function.
        * machmode.h: Prototype it.

Fri Oct  9 14:26:44 1998  Jeffrey A Law  (law@cygnus.com)

        * global.c (build_insn_chain): Verify no real insns exist past the
        end of the last basic block, then exit the loop.

Fri Oct  9 11:44:47 1998  David Edelsohn  <edelsohn@mhpcc.edu>

        * loop.c (insert_bct): Ensure loop_iteration_var non-zero before use.

Thu Oct  8 21:59:47 1998  Dave Brolley  <brolley@cygnus.com>

        * emit-rtl.c (init_emit_once): Call INIT_EXPANDERS.

Thu Oct  8 22:03:45 1998  David Edelsohn  <edelsohn@mhpcc.edu>

        * rs6000.h (RTX_COSTS): Add PROCESSOR_PPC604e cases.

Thu Oct  8 17:00:18 1998  Richard Henderson  <rth@cygnus.com>

        * flow.c (find_basic_blocks): Correctly determine when a call
        is within an exception region.

Thu Oct  8 17:15:04 1998  Jeffrey A Law  (law@cygnus.com)

        * toplev.c (output_file_directive): Use DIR_SEPARATOR, not '/'.

        * cpplib.h: Protect from multiple inclusions.
        * cpplib.c: Fix minor formatting problems.

        * i386/xm-cygwin32.h: Only define POSIX if it is not already defined.

        * jump.c (jump_optimize): Revert accidental patch.

        * Makefile.in (cpplib.o): Use unlibsubdir.

Thu Oct  8 12:50:47 1998  Jim Wilson  <wilson@cygnus.com>

        * loop.c (get_condition): Allow combine when either compare is
        VOIDmode.

Thu Oct 8 11:31:01 PDT 1998 Jeff Law  (law@cygnus.com)

        * version.c: Bump for snapshot.

Thu Oct  8 12:21:14 1998  Richard Frith-Macdonald <richard@brainstorm.co.uk>

        * c-lex.c (remember_protocol_qualifiers): Handle RID_BYREF.
        (init_lex): Initialize ridpointers[RID_BYREF].
        * c-lex.h (enum rid): Add RID_BYREF.
        * c-parse.gperf: Add RID_BYREF as a type qualifier.
        * objc/objc-act.c (is_objc_type_qualifiers): Handle RID_BYREF.
        (encode_type_qualifiers): Similarly
        * c-gperf.h: Rebuilt.

Thu Oct  8 05:56:00 1998  Jeffrey A Law  (law@cygnus.com)

        * c-common.c (type_for_mode): Only return TItype nodes when
        HOST_BITS_PER_WIDE_INT is >= 64 bits.
        * c-decl.c (intTI_type_node, unsigned_intTI_type_node): Only declare
        when HOST_BITS_PER_WIDE_INT is >= 64 bits.
        (init_decl_processing): Only create TItype nodes when
        HOST_BITS_PER_WIDE_INT is >= 64 bits.
        * c-tree.h (intTI_type_node, unsigned_intTI_type_node): Only declare
        when HOST_BITS_PER_WIDE_INT is >= 64 bits.

Thu Oct  8 05:05:34 1998  Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>

        * stmt.c (n_occurrences): New static function.
        (expand_asm_operands): Verify that all constrains match in the
        number of alternatives.
        Verify that '+' or '=' are at the beginning of an output constraint.
        Don't allow '&' for input operands.
        Verify that '%' isn't written for the last operand.
        * reload.c (find_reloads): Abort if an asm is found with invalid
        constraints; all possible problems ought to be checked for earlier.

Thu Oct  8 04:26:20 1998  Michael Hayes <m.hayes@elec.canterbury.ac.nz>

        * flags.h (flag_branch_on_count_reg): Always declare 
        * toplev.c (flag_branch_on_count_reg): Likewise.
        * toplev.c: Fix typos.

        * real.c (c4xtoe): Remove unused variables.  Add some missing parens.
        (toc4x): Similarly.

Thu Oct  8 01:25:22 1998  Richard Henderson  <rth@cygnus.com>

        * flow.c (find_basic_blocks): Calc upper bound for extra nops in
        max_uids_for_flow.
        (find_basic_blocks_1): Add a nop to the end of a basic block when
        a trailing call insn does not have abnormal control flow.
        * gcse.c (pre_transpout): New variable.
        (alloc_pre_mem, free_pre_mem, dump_pre_data): Bookkeeping for it.
        (compute_pre_transpout): Calculate it.
        (compute_pre_ppinout): Use it to eliminate impossible placements
        due to abnormal control flow through calls.
        (compute_pre_data): Call compute_pre_transpout.

Wed Oct  7 21:40:24 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * config/sparc/sol2-sld-64.h (ASM_CPU_SPEC): Fix typo.

Wed Oct  7 21:19:46 1998  Ken Raeburn  <raeburn@cygnus.com>

        * config/mips/mips.md (tablejump_internal3, tablejump_internal4
        and matching define_insns): Tack on a `use' of the table label, so
        flow analysis will recognize a tablejump.

Wed Oct  7 17:33:39 1998  Richard Henderson  <rth@cygnus.com>

        * gcse.c (pre_insert_insn): Tweek to notice that calls do not
        always end basic blocks for abnormal edge reasons.

Wed Oct  7 14:40:43 1998  Nick Clifton  <nickc@cygnus.com>

        * config/i386/i386.h: Remove definition of
        HANDLE_PRAGMA_PACK_PUSH_POP.
        
        * config/i386/go32.h: Add definition of
        HANDLE_PRAGMA_PACK_PUSH_POP.
        
        * config/i386/win32.h: Add definition of
        HANDLE_PRAGMA_PACK_PUSH_POP.
        
        * config/i386/cygwin32.h: Add definition of
        HANDLE_PRAGMA_PACK_PUSH_POP.

        * c-pragma.c (insert_pack_attributes): Do not insert
        attributes unless #pragma pack(push,<n>) is in effect.

Wed Oct  7 12:10:46 1998  Jim Wilson  <wilson@cygnus.com>

        * expr.c (emit_group_store): Handle a PARALLEL destination.

Wed Oct  7 10:07:29 1998  Richard Henderson  <rth@cygnus.com>

        * gcse.c (pre_insert_insn): When a call ends a bb, insert
        the new insns before the argument regs are loaded.

Wed Oct  7 12:55:26 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * Makefile.in (c-gperf.h): Add -L KR-C -F ', 0, 0' flags to gperf.
        (c-parse.gperf): Update comments describing invocation flags.
        (c-gperf.h): Regenerate using gperf 2.7.1 (19981006 egcs).

1998-10-07  Manfred Hollstein  <manfred@s-direktnet.de>

        * reload1.c (reload): Call free before clobbering the memory
        locations or constants pointers.

Wed Oct  7 02:05:20 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * config/sparc/sol2-sld-64.h (TRANSFER_FROM_TRAMPOLINE): Rework
        for efficiency by checking whether we need to modify the current
        stack permission at all.
        (ASM_OUTPUT_CONSTRUCTOR, ASM_OUTPUT_DESTRUCTOR): Define.
        * config/sparc/sparc.c (sparc_initialize_trampoline): Emit
        __enable_execute_stack libcall here too if
        TRANSFER_FROM_TRAMPOLINE is defined.
        * config/sparc/sparc.h: Set TARGET_ARCH32 to a constant if
        IN_LIBGCC2.

Wed Oct  7 02:27:52 1998  Jeffrey A Law  (law@cygnus.com)

        * Makefile.in (DRIVER_DEFINES): Remove last change.
        
Wed Oct  7 01:08:43 1998  Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>

        * jump.c (duplicate_loop_exit_test): Strip REG_WAS_0 notes off all
        insns we're going to copy.
        * regclass.c (reg_scan_mark_refs): Don't test X for NULL_RTX.

        * loop.c (count_one_set): Add prototype.

        * caller-save.c (restore_referenced_regs): Lose mode argument.
        (insert_save): Lose mode argument.
        (insert_restore): Lose mode argument.
        (insert_one_insn): Lose mode argument.
        (save_call_clobbered_regs): Lose mode argument.
        (setup_save_areas): Take no argument and return void.  All callers
        changed.
        Don't verify validity of memory addresses.
        * reload.h (setup_save_ares): Adjust prototype.
        (save_call_clobbered_regs): Likewise.
        * reload1.c (delete_caller_save_insns): New function.
        (caller_save_spill_class): Delete variable.
        (caller_save_group_size): Delete variable.
        (reload): Call setup_save_areas and save_call_clobbered_regs
        in the main loop, before calling calculate_needs_all_insns.
        Don't call save_call_clobbered_regs after the loop.
        Call delete_caller_save_insns at the end of an iteration if
        something changed.
        Delete code to manage caller_save_spill_class.
        Emit the final note before setting reload_first_uid.
        Simplify test that determines whether reload_as_needed gets run.
        (calculate_needs): Delete code to manage caller_save_spill_class.

Tue Oct  6 15:42:27 1998  Richard Henderson  <rth@cygnus.com>

        * collect2.c (main): Initialize ld_file_name.

Tue Oct  6 15:45:15 1998  Catherine Moore  <clm@cygnus.com>
 
        * config/sparc/sysv4.h (ASM_OUTPUT_SECTION_NAME):  Don't
        check for flag_function_sections.

Tue Oct  6 20:02:31 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * cse.c (insert_regs): Fix bug in Sep 24 change.

Tue Oct  6 17:00:42 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * flags.h (flag_dump_unnumbered): Declare.
        * toplev.c (flag_dump_unnumbered): Don't declare.
        * print-rtl.c (flags.h): Include.
        (print_rtl_single): Add return value.
        * rtl.h (print_rtl_single): Update declaration.
        * flow.c (flag_dump_unnumbered): Don't declare.
        (print_rtl_with_bb): Use return value of print_rtl_single.

Tue Oct  6 01:36:00 1998  Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>

        * loop.c (count_one_set): New static function, broken out of
        count_loop_regs_set
        (count_loop_regs_set): Call it.
        * global.c (mark_reg_store): Handle clobbers here by not calling
        set_preference.
        (mark_reg_clobber): Just call mark_reg_store after ensuring SETTER
        is in fact a clobber.
        * integrate.c (process_reg_param): New function, broken out of
        expand_inline_function.
        (expand_inline_function): Call it.


        * i386.md (addsidi3_1): Delete unused variable temp.
        (addsidi3_2): Likewise.
        (clstrstrsi): Delete unused variable addr1.

        * rtl.h: Don't declare any functions also declared in recog.h.

        * Makefile.in (stupid.o): Update dependencies.
        (global.o): Likewise.

        * global.c: Include reload.h
        (reg_becomes_live): New function.
        (reg_dies): New function.
        (build_insn_chain): New function.
        (global_alloc): Call build_insn_chain before calling reload.

        * reload.h (struct needs): New structure definition.
        (struct insn_chain): Likewise.
        (reload_insn_chain): Declare variable.
        (new_insn_chain): Declare function.


        * reload1.c (reload_startobj): New variable.
        (reload_insn_chain): New variable.
        (unused_insn_chains): New variable.
        (new_insn_chain): New function.
        (init_reload): Initialize reload_startobj, not reload_firstobj.
        (reload): Initialize reload_firstobj.
        Before returning, free everything on the reload_obstack.

        * stupid.c: Include insn-config.h, reload.h and basic-block.h.
        (reg_where_dead_chain, reg_where_born_exact, reg_where_born_clobber,
        current_chain): New variables.
        (reg_where_born): Delete variable.
        (REG_WHERE_BORN): New macro.
        (find_clobbered_regs): New function.
        (stupid_life_analysis): Don't allocate/free reg_where_born.
        Allocate and free reg_where_born_exact, reg_where_born_clobber,
        reg_where_dead_chain.
        Use REG_WHERE_BORN instead of reg_where_born.
        While processing the insns, build the reload_insn_chain with
        information about register lifetimes.
        (stupid_reg_compare): Use REG_WHERE_BORN instead of reg_where_born.
        (stupid_mark_refs): Replace arg INSN with arg CHAIN.  All callers
        changed.
        Compute and information about birth and death of pseudo registers in
        reg_where_dead_chain, reg_where_born_exact and reg_where_born_clobber.
        Delete code to set elements of reg_where_born.  

Mon Oct  5 22:34:30 1998  Alexandre Petit-Bianco  <apbianco@cygnus.com>

        * tree.def (GOTO_EXPR): Modified documentation.
        * expr.c (expand_expr): Expand GOTO_EXPR into a goto or a computed
        goto.

Mon Oct  5 22:43:36 1998  David Edelsohn  <edelsohn@mhpcc.edu>

        * unroll.c (loop_iteration_var, loop_initial_value, loop_increment
        loop_final_value, loop_comparison_code): No longer static.
        (unroll_loop): Delete loop_start_value update.
        * loop.h (loop_iteration_var, loop_initial_value, loop_increment,
        loop_final_value, loop_comparison_code): Extern.
        (loop_start_value): Delete extern.
        * loop.c (loop_can_insert_bct, loop_increment, loop_start_value,
        loop_comparison_value, loop_comparison_code): Delete.
        (loop_optimize): Remove initialization for deleted variables.
        (strength_reduce): Delete analyze_loop_iterations call.  Only call
        insert_bct if flag_branch_count_on_reg set.
        (analyze_loop_iterations): Delete.
        (insert_bct): Remove iteration count calculation.  Move checks for
        viable BCT optimization to here.  Obtain iteration count from
        loop_iterations and correct for unrolling.  Check for enough
        iteration to be beneficial.  Comment out runtime iteration count
        case.
        (insert_bct): Print iteration count in dump file.  Remove
        loop_var_mode and use word_mode directly.

        * rs6000.h (processor_type): Add PROCESSOR_PPC604e.
        * rs6000.c (rs6000_override_options): Use it.
        (optimization_options): Enable use of flag_branch_on_count_reg.
        * rs6000.md (define_function_unit): Describe 604e.

1998-10-05 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

        * loop.c (move_movables): Corrected threshold calculation for
        moved_once registers.

Mon Oct  5 21:18:45 1998  Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>

        * loop.c (combine_givs_p): Fix test for identical givs.

Mon Oct  5 10:11:28 1998  Nick Clifton  <nickc@cygnus.com>

        * dwarf2out.c (gen_subprogram_die): If errorcount nonzero, don't
        call abort if the function is already defined.

Mon Oct  5 10:02:36 1998  Jeffrey A Law  (law@cygnus.com)

        * combine.c (simplify_rtx): Do not replace TRUNCATE with a SUBREG if
        truncation is not a no-op.

Mon Oct 5 09:02:04 PDT 1998 Jeff Law  (law@cygnus.com)

        * version.c: Bump for snapshot.

Mon Oct 5 08:19:55 PDT 1998 Jeff Law  (law@cygnus.com)

        * version.c: Bump for snapshot.

Mon Oct  5 01:07:23 1998  Torbjorn Granlund  <tege@matematik.su.se>

        * expmed.c (expand_divmod): Don't widen for computing remainder
        if we seem to have a divmod pattern for needed mode.

Mon Oct  5 01:01:42 1998  Zack Weinberg  <zack@rabi.phys.columbia.edu>  

        * cpplib.c (macroexpand): Correct off-by-one error in handling
        of escapes.

Sun Oct  4 23:58:30 1998  Richard Henderson  <rth@cygnus.com>

        * combine.c (expand_field_assignment): Don't do bitwise operations
        on MODE_FLOAT; pun to MODE_INT if possible.

Sun Oct  4 18:33:24 1998  Jason Merrill  <jason@yorick.cygnus.com>
                          scott snyder  <snyder@d0sgif.fnal.gov>

        * tlink.c (scan_linker_output): Recognize errors from irix 6.2
        linker.  Recognize mangled names in quotes.

Sun Oct  4 02:58:20 1998  Jakub Jelinek  <jj@sunsite.ms.mff.cuni.cz>

        * config/sparc/sparc.md (ashldi3+1): Name it ashldi3_sp64.
        (ashlsi3_const1, ashldi3_const1): New combiner patterns.
        (ashrsi3_extend, ashrsi3_extend2): New combiner patterns.
        (lshrsi3_extend, lshrsi3_extend2): Ditto.

Sun Oct  4 00:23:00 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * function.c (purge_addressof_1): If trying to take a sub-word
        integral piece of a floating point mode, put it on the stack.

Sat Oct  3 19:01:03 1998  Richard Henderson  <rth@cygnus.com>

        * alpha/linux.h (CPP_PREDEFINES): Define __alpha__ for imake.

Sat Oct  3 14:42:19 1998  Jason Merrill  <jason@yorick.cygnus.com>

        * PROJECTS: Remove template friends.

        * collect2.c (sort_ids): Remove unused variable.

        * tm.texi (MATH_LIBRARY): Document.
        (NEED_MATH_LIBRARY): Remove.

        * varasm.c (assemble_start_function, assemble_variable, weak_finish,
        assemble_alias): Do ASM_GLOBALIZE_LABEL for weak symbols, too.

Sat Oct  3 16:14:44 1998  John Carr  <jfc@mit.edu>

        * dwarf2out.c (expand_builtin_dwarf_reg_size):  Initialize
        last_end to 0x7fffffff.

Fri Oct  2 19:14:20 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * function.c (purge_addressof_1): Do not perform endianness
        corrections on bitpos, who we call will do it for us.

Fri Oct  2 11:52:35 1998  Jeffrey A Law  (law@cygnus.com)

        * h8300.c (WORD_REG_USED): Fix typo.
        (initial_offset): Use WORD_REG_USED.

        * h8300.c (handle_pragma): Fix typo.

Fri Oct  2 10:51:35 1998  Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>

        * caller-save.c (insert_save_restore): Break this function up
        into new functions insert_restore, insert_save and insert_one_insn.
        All callers changed.
        (insert_restore): New function, mostly broken out of
        insert_save_restore.
        (insert_save): Likewise.
        (insert_one_insn): Likewise.
        (restore_referenced_regs): New argument BLOCK.  All callers changed.
        (save_call_clobbered_regs): Don't keep track of basic block boundaries
        in this function, do it in insert_one_insn instead.

        * reload1.c (reload): Break out some more pieces into separate
        functions.
        (dump_needs): New function, broken out of reload.
        (set_initial_elim_offsets): Likewise.
        (init_elim_table): Likewise.
        (update_eliminables): Likewise.

        * global.c (global_alloc): Delete code to manage the scratch_list.
        * local-alloc.c (qty_scratch_rtx): Delete.
        (scratch_block): Delete.
        (scratch_list): Delete.
        (scratch_list_length): Delete.
        (scratch_index): Delete.
        (alloc_qty_for_scratch): Delete.
        (local-alloc): Update initialization of max_qty.
        Delete code to manage the scratch list.
        Delete code to allocate/initialize qty_scratch_rtx.
        (block_alloc): Don't allocate quantities for scratches.
        Delete code to manage the scratch list.
        * regs.h (scratch_list): Delete declaration.
        (scratch_block): Delete declaration.
        (scratch_list_length): Delete declaration.
        * reload1.c (reload): Delete code to manage the scratch list.
        (spill_hard_reg): Likewise.
        (mark_scratch_live): Delete.

        * recog.c (alter_subreg): Delete declaration.

1998-10-02  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

        * Makefile.in (cccp.o): Fix typo in last patch.

Fri Oct  2 16:13:12 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * t-sh (LIB1ASMFUNCS): Add _set_fpscr .
        * config/sh/lib1funcs.asm (___set_fpscr): Add.

Fri Oct  2 02:01:59 1998  Jeffrey A Law  (law@cygnus.com)

        * regclass.c (reg_scan_mark_refs): Return immediately if passed a
        NULL_RTX as an argument.

        * Makefile.in (unlibsubdir): Define.
        (DRIVER_DEFINES): Use unlibsubdir.
        (cccp.o, cpplib.o, protoize.o, unprotoize.o): Similarly.
        (stmp-fixinc): Similarly.

Thu Oct  1 19:58:30 1998  Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>

        * regmove.c (regmove_optimize): Add variable old_max_uid.
        At the end of the function, update basic_block_end.

Thu Oct  1 17:58:25 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * dwarf2out.c (expand_builtin_dwarf_reg_size): Use
        FIRST_PSEUDO_REGISTER as upper bound for last_end, not an
        arbitrary constant.

Thu Oct  1 17:57:14 1998  Nick Clifton  <nickc@cygnus.com>

        * config/arm/arm.c: Improve interworking support.

Thu Oct  1 18:43:35 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * reload1.c (choose_reload_regs): Fix test if reload_reg_rtx[r] was
        copied from reload_out[r] .

Thu Oct  1 19:20:09 1998  John Carr  <jfc@mit.edu>

        * dwarf2out.c (expand_builtin_dwarf_reg_size): Fix to work
        with more than three size ranges.

        * flow.c (sbitmap_copy): Use bcopy to copy bitmap.

        * rtl.c (mode_name): Add a null string at the end of the array.
        (mode_wider_mode): Change type to unsigned char.
        (mode_mask_array): New variable.
        (init_rtl): Update for mode_wider_mode type change.

        * rtl.h (mode_wider_mode): Change type to unsigned char.
        (mode_mask_array): Declare.
        (GET_MODE_MASK): Use mode_mask_array.

Thu Oct  1 15:56:01 1998  Gavin Romig-Koch  <gavin@cygnus.com>

        * calls.c (expand_call) : Encapsulate code into 
        copy_blkmode_from_reg.
        * expr.c (copy_blkmode_from_reg): New function.
        * expr.h (copy_blkmode_from_reg): New function.
        * integrate.c (function_cannot_inline_p): We can inline
        these now.
        (expand_inline_function): Use copy_blkmode_from_reg
        if needed.  Avoid creating BLKmode REGs.
        (copy_rtx_and_substitute): Don't try to SUBREG a BLKmode
        object.

Thu Oct  1 10:42:27 1998  Nick Clifton  <nickc@cygnus.com>

        * config/v850/v850.c: Add function prototypes.
        Add support for v850 special data areas.

        * config/v850/v850.h: Add support for v850 special data areas.
        
        * c-pragma.c: Add support for HANDLE_PRAGMA_PACK and
        HANDLE_PRAGMA_PACK_PUSH_POP.
        (push_alignment): New function: Cache an alignment requested
        by a #pragma pack(push,<n>).
        (pop_alignment): New function: Pop an alignment from the
        alignment stack.
        (insert_pack_attributes): New function: Generate __packed__
        and __aligned__ attributes for new decls whilst a #pragma pack
        is in effect. 
        (add_weak): New function: Cache a #pragma weak directive.
        (handle_pragma_token): Document calling conventions.  Add
        support for #pragma pack(push,<n>) and #pragma pack (pop).

        * c-pragma.h: If HANDLE_SYSV_PRAGMA or HANDLE_PRAGMA_PACK_PUSH_POP
        are defined enable HANDLE_PRAGMA_PACK.
        Move 'struct weak_syms' here (from varasm.c).
        Add pragma states for push and pop pragmas.

        * c-common.c (decl_attributes): Call PRAGMA_INSERT_ATTRIBUTES
        if it is defined.

        * c-lex.c: Replace occurances of HANDLE_SYSV_PRAGMA with
        HANDLE_GENERIC_PRAGMAS.
        
        * varasm.c: Move definition of 'struct weak_syms' into
        c-pragma.h. 
        (handle_pragma_weak): Deleted.

        * config/i386/i386.h: Define HANDLE_PRAGMA_PACK_PUSH_POP.

        * config/winnt/win-nt.h: Define HANDLE_PRAGMA_PACK_PUSH_POP.

        * c-decl.c (start_function): Add invocation of
        SET_DEFAULT_DECL_ATTRIBUTES, if defined.

        * tm.texi: Remove description of non-existant macro
        SET_DEFAULT_SECTION_NAME.
        
        (HANDLE_SYSV_PRAGMA): Document.
        (HANDLE_PRAGMA_PACK_PUSH_POP): Document.

Wed Sep 30 22:27:53 1998  Robert Lipe  <robertl@dgii.com>

        * config.sub: Recognize i[34567]86-pc-udk as new target.
        * configure.in: Likewise.
        * config/i386/t-udk: New file.
        * config/i386/udk.h: New file.

Wed Sep 30 19:33:07 1998  Jeffrey A Law  (law@cygnus.com)

        * reorg.c (check_annul_list_true_false): Remove unused variables.
        (steal_delay_list_from_target): Add missing "used_annul" variable.
        (try_merge_delay_insns): Close out half formed comment.

Wed Sep 30 19:13:20 1998 Zack Weinberg  <zack@rabi.phys.columbia.edu>  

        * cpplib.c (macroexpand): If arg->raw_before or
        arg->raw_after, remove any no-reexpansion escape at the
        beginning of the pasted token.  Correct handling of whitespace
        markers and no-reexpand markers at the end if arg->raw_after.

        * toplev.c (documented_lang_options): Recognize -include,
        -imacros, -iwithprefix, -iwithprefixbefore.
        * cpplib.c (cpp_start_read): Process -imacros and -include
        switches at the same time and in command-line order, after
        initializing the dependency-output code.  Emit properly nested
        #line directives for them.  Emit a #line for the main file
        before processing these switches, and don't do it again
        afterward.

Wed Sep 30 18:03:22 1998  Richard Henderson  <rth@cygnus.com>

        * function.c (purge_addressof_1): Use bitfield manipulation
        routines to handle mem mode < reg mode.

Wed Sep 30 18:43:32 1998  Herman ten Brugge <Haj.Ten.Brugge@net.HCC.nl> 

        * reorg.c (try_merge_delay_insns): Account for resources referenced
        in each instruction in INSN's delay list before trying to eliminate
        useless instructions.  Similarly when looking at a trial insn's delay
        slots.

        * reorg.c (check_annul_list_true_false): New function.
        (steal_delay_list_from_{target,fallthrough}): Call it and also
        refine tests for when we may annul if already filled a slot.
        (fill_slots_from_thread): Likewise.
        (delete_from_delay_slot): Return newly-created thread.
        (try_merge_delay_isns): Use its new return value.

Wed Sep 30 18:29:26 1998  Jeffrey A Law  (law@cygnus.com)

        * loop.c (check_dbra_loop): Use a vanilla loop reversal if the biv is
        used to compute a giv or as some other non-counting use.

Wed Sep 30 18:19:27 1998  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * regs.h (HARD_REGNO_CALL_PART_CLOBBERED):  New macro.
        * local-alloc.c (find_free_reg): Use it.
        * global.c (find_reg): Likewise.
        * tm.texi: Document HARD_REGNO_CALL_PART_CLOBBERED.

        * regs.h (HARD_REGNO_CALLER_SAVE_MODE): New macro.
        * caller-save.c (init_caller_save): Use it.
        * tm.texi: Document HARD_REGNO_CALLER_SAVE_MODE.

Wed Sep 30 12:57:30 1998 Zack Weinberg  <zack@rabi.phys.columbia.edu>  

        * configure.in: Add --enable-cpplib option which uses cpplib
        for cpp, but doesn't link cpplib into cc1.  Make help text
        capitalization consistent.
        * configure: Rebuilt.

Wed Sep 30 10:09:39 1998  Mark Mitchell  <mark@markmitchell.com>

        * function.c (gen_mem_addressof): If the address REG is
        REG_USERVAR_P make the new REG be so also.
        * loop.c (scan_loop): Apply DeMorgan's laws and add documentation
        in an attempt to clarify slightly.

Wed Sep 30 09:57:40 1998  Jeffrey A Law  (law@cygnus.com)

        * expr.c (expand_expr): Handle COMPONENT_REF, BIT_FIELD_REF ARRAY_REF
        and INDIRECT_REF in code to check MAX_INTEGER_COMPUTATION_MODE.

Wed Sep 30 10:13:39 1998  Catherine Moore  <clm@cygnus.com>

        * toplev.c:  Fix last patch.

Tue Sep 29 20:03:18 1998  Jim Wilson  <wilson@cygnus.com>

        * loop.c (get_condition): Fix typo in May 9 change.

Tue Sep 29 11:11:38 EDT 1998  Andrew MacLeod  <amacleod@cygnus.com>

        * invoke.texi (-fexceptions): Merge 2 different descriptions.

Mon Sep 28 22:08:52 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * toplev.c (documented_lang_options): Spelling corrections.

Mon Sep 28 19:41:24 1998  Alexandre Oliva  <oliva@dcc.unicamp.br>

        * configure.in: new flags --with-ld and --with-as, equivalent
        to setting LD and AS environment variables.  Test whether
        specified arguments are GNU commands, and report them with
        checking messages.  Use the specified AS for configure
        tests too.
        * configure: ditto
        * acconfig.h: add DEFAULT_ASSEMBLER and DEFAULT_LINKER
        * config.in: ditto
        * gcc.c (find_a_file): when looking for `as' and `ld', return
        the DEFAULT program if it exists
        * collect2.c (main): use DEFAULT_LINKER if it exists

        * gcc.c (find_a_file): the test for existence of a full
        pathname was reversed

Mon Sep 28 17:34:35 1998  Michael Meissner  <meissner@cygnus.com>

        * rs6000.h (ASM_OUTPUT_MI_THUNK): Only define on ELF systems.
        * rs6000.c (output_mi_thunk): Always use a raw jump for now.

Mon Sep 28 14:24:03 1998  Mark Mitchell  <mark@markmitchell.com>

        * tree.h (TYPE_BINFO): Document.

Mon Sep 28 12:55:49 1998   Stan Cox  <scox@cygnus.com>

        * i386-coff.h (dbxcoff.h): Added.

Mon Sep 28 12:51:00 1998  Catherine Moore  <clm@cygnus.com>

        * toplev.c:  fix bad patch around flag_data_sections.

Mon Sep 28 10:32:28 1998  Nick Clifton  <nickc@cygnus.com>

        * reload1.c (reload): Use reload_address_index_reg_class and 
        reload_address_base_reg_class when setting
        caller_save_spill_class.  (Patch generated by Jim Wilson:
        wilson@cygnus.com).

Mon Sep 28 07:43:34 1998  Mark Mitchell  <mark@markmitchell.com>

        * c-common.c (c_get_alias_set): Tighten slightly for FUNCTION_TYPEs
        and ARRAY_TYPEs.  Tidy up.  Improve support for type-punning. 
        * expr.c (store_field): Add alias_set parameter.  Set the
        MEM_ALIAS_SET accordingly, if the target is a MEM.
        (expand_assignment): Use it.
        (store_constructor_field): Pass 0.
        (expand_expr): Likewise.

Mon Sep 28 07:54:03 1998  Catherine Moore  <clm@cygnus.com>
 
        * flags.h:  Add flag_data_sections.
        * toplev.c:  Add option -fdata-sections.  Add flag_data_sections.
        (compile_file):  Error if flag_data_sections not supported.
        * varasm.c (assemble_variable):  Handle flag_data_sections.
        * config/svr4.h:  Modify prefixes for UNIQUE_SECTION_NAME.
        * config/mips/elf.h:  Likewise.
        * config/mips/elf64.h:  Likewise.
        * invoke.texi:  Describe -fdata-sections.
 
Mon Sep 28 04:15:44 1998  Craig Burley  <burley@melange.gnu.org>

        * invoke.texi (-ffloat-store): Clarify that this option
        does not affect intermediate results -- only variables.

Mon Sep 28 04:11:35 1998  Jeffrey A Law  (law@cygnus.com)

        * cpp.texi: Update for Fortran usage from Craig.

Fri Sep 25 22:09:47 1998  David Edelsohn  <edelsohn@mhpcc.edu>

        * rs6000.c (function_arg_boundary): Revert accidental change on
        September 18.

Fri Sep 25 20:30:00 1998  Michael Meissner  <meissner@cygnus.com>

        * rs6000.h (ASM_OUTPUT_MI_THUNK): Declare, call output_mi_thunk.
        (output_mi_thunk): Declare.

        * rs6000.c (output_mi_thunk): Function to create thunks for MI.
        (output_function_profiler): Use r12 for temp, instead of r11 so
        that we preserve the static chain register.
        
Fri Sep 25 14:18:33 1998  Jim Wilson  <wilson@cygnus.com>

        * sdbout.c (sdbout_one_type): Don't look at TYPE_BINFO field of enums.

Fri Sep 25 19:30:19 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * sh.c (gen_shl_sext): Fix case 5.

Fri Sep 25 17:35:23 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * reload1.c (reload_combine): Re-add line that got accidentally lost.

Fri Sep 25 10:43:47 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * cccp.c (pedwarn_with_file_and_line): For !__STDC__ case, avoid
        accessing variables until they are initialized via va_arg().

Thu Sep 24 22:12:16 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * reload1.c (reload_combine): Initialize set before using.

Thu Sep 24 18:53:20 1998  Jason Merrill  <jason@yorick.cygnus.com>

        * sdbout.c (sdbout_field_types): Don't emit the types of fields we
        won't be emitting.

Thu Sep 24 17:05:30 1998  Nick Clifton  <nickc@cygnus.com>

        * config/arm/arm.md (insv): Add comment.  In CONST_INT case, and
        operand3 with mask before using it.  Patch provided by Jim Wilson.

Thu Sep 24 15:08:08 1998  Jakub Jelinek  <jj@sunsite.ms.mff.cuni.cz>

        * config/sparc/sparc.c (function_value): Perform the equivalent of
        PROMOTE_MODE for ARCH64.
        (eligible_for_epilogue_delay): Allow DImode operations in delay
        slot of a return for ARCH64.

Thu Sep 24 22:17:54 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * sh.md (sqrtsf2): Fix mode of sqrt.

Thu Sep 24 21:48:51 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * reload1.c (choose_reload_regs): Also try inheritance when
        reload_in is a stack slot of a pseudo, even if we already got a
        reload reg.

Thu Sep 24 21:22:39 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * reload1.c (reload_cse_regs_1): Renamed from reload_cse_regs.
        (reload_cse_regs): New function body: call reload_cse_regs_1,
        reload_combine, reload_cse_move2add.
        When doing expensive_optimizations, call reload_cse_regs_1 a
        second time after reload_cse_move2add.
        (reload_combine, reload_combine_note_store): New functions.
        (reload_combine_note_use): New function.
        (reload_cse_move2add, move2add_note_store): New functions.

Thu Sep 24 18:48:43 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * reload.c (find_reloads): In code to promote RELOAD_FOR_X_ADDR_ADDR
        reloads to RELOAD_FOR_X_ADDRESS reloads, test for reload sharing.

        Properly keep track of first RELOAD_FOR_X_ADDRESS also for
        more than 3 such reloads.

        If there is not more than one RELOAD_FOR_X_ADDRESS, don't change
        RELOAD_FOR_X_ADDR_ADDR reload.

Thu Sep 24 17:45:55 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * expr.c (store_constructor): When initializing a field that is smaller
        than a word, at the start of a word, try to widen it to a full word.

        * cse.c (cse_insn): When we are about to change a register,
        remove any invalid references to it.

        (remove_invalid_subreg_refs): New function.
        (mention_regs): Special treatment for SUBREGs.
        (insert_regs): Don't strip SUBREG for call to mention_regs.
        Check if reg_tick needs to be bumped up before that call.
        (lookup_as_function): Try to match known word_mode constants when
        looking for a norrower constant.
        (canon_hash): Special treatment for SUBREGs.

Thu Sep 24 01:35:34 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * config/sparc/sol2-sld-64.h (TRANSFER_FROM_TRAMPOLINE): Define.
        * config/sparc/sparc.c (sparc64_initialize_trampoline): If that is
        defined, emit libcall to __enable_execute_stack.  Also fix opcodes
        and offsets in actual stack trampoline code so they match the
        commentary and actually work.

Thu Sep 24 01:19:02 1998  Jakub Jelinek  <jj@sunsite.ms.mff.cuni.cz>

        * configure.in (sparcv9-*-solaris): Use t-sol2 and t-sol2-64 for
        tmake_file.
        (sparc64-*-linux): Use t-linux and sparc/t-linux64 for
        tmake_file.  Set extra_parts to needed crt objects.
        * configure: Rebuilt.
        * config/sparc/linux64.h (SPARC_BI_ARCH): Define.
        (TARGET_DEFAULT): Set if default is v9 or ultra.
        (STARTFILE_SPEC32, STARTFILE_SPEC64): New macros.
        (STARTFILE_SPEC): Set to those upon SPARC_BI_ARCH.
        (ENDFILE_SPEC32, ENDFILE_SPEC64, ENDFILE_SPEC): Likewise.
        (SUBTARGET_EXTRA_SPECS, LINK_ARCH32_SPEC, LINK_ARCH64_SPEC,
        LINK_SPEC, LINK_ARCH_SPEC): Likewise.
        (TARGET_VERSION): Define.
        (MULTILIB_DEFAULT): Define.
        * config/sparc/sparc.h (CPP_CPU_DEFAULT_SPEC): Rearrange so that
        mixed 32/64 bit compilers based upon SPARC_BI_ARCH work.
        (CPP_CPU64_DEFAULT_SPEC, CPP_CPU32_DEFAULT_SEC): Define
        appropriately.
        (TARGET_SWITCHES): Allow ptr32/ptr64 options once more.
        * config/sparc/sparc.c (sparc_override_options): If arch and
        pointer size disagree, emit diagnostic and fix it up.  If
        SPARC_BI_ARCH and TARGET_ARCH32, set cmodel to CM_32.  Turn off
        V8PLUS in 64-bit mode.
        * config/sparc/t-linux64: New file.
        * config/sparc/t-sol2-64: New file.
        * config/sparc/t-sol2: Adjust build rules to use MULTILIB_CFLAGS.
        * config/sparc/sol2-sld-64.h (SPARC_BI_ARCH): Define.
        (ASM_CPU32_DEFAULT_SPEC, ASM_CPU64_DEFAULT_SPEC,
        CPP_CPU32_DEFAULT_SPEC, CPP_CPU64_DEFAULT_SPEC): Define.
        (ASM_SPEC, CPP_CPU_SPEC): Set appropriately based upon those.
        (STARTFILE_SPEC32, STARTFILE_SPEC32, STARTFILE_ARCH_SPEC):
        Define.
        (STARTFILE_SPEC): Set approriately based upon those.
        (CPP_CPU_DEFAULT_SPEC, ASM_CPU_DEFAULT_SPEC): Set based upon
        disposition of DEFAULT_ARCH32_P.
        (LINK_ARCH32_SPEC, LINK_ARCH64_SPEC): Define.
        (LINK_ARCH_SPEC, LINK_ARCH_DEFAULT_SPEC): Set based upon those.
        (CC1_SPEC, MULTILIB_DEFAULTS): Set based upon DEFAULT_ARCH32_P.
        (MD_STARTFILE_PREFIX): Set correctly based upon SPARC_BI_ARCH.
        * config/sparc/xm-sysv4-64.h (HOST_BITS_PER_LONG): Only set on
        arch64/v9.
        * config/sparc/xm-sp64.h (HOST_BITS_PER_LONG): Likewise.
        
Wed Sep 23 22:32:31 1998  Mark Mitchell  <mark@markmitchell.com>

        * rtl.h (init_virtual_regs): New function.
        * emit-rtl.c (init_virtual_regs): Define.
        (insn_emit): Use it.
        * integrate.c (save_for_inline_copying): Likewise.

Wed Sep 23 16:22:01 1998  Nick Clifton  <nickc@cygnus.com>

        * config/arm/thumb.h: The following patches were made by Jim Wilson:
        (enum reg_class): Add NONARG_LO_REGS support.
        (REG_CLASS_NAMES, REG_CLASS_CONTENTS, REGNO_REG_CLASS,
        PREFERRED_RELOAD_CLASS, SECONDARY_RELOAD_CLASS): Likewise.
        (GO_IF_LEGITIMATE_ADDRESS): Disable REG+REG addresses before reload
        completes.  Re-enable HImode REG+OFFSET addresses.
        (LEGITIMIZE_RELOAD_ADDRESS): Define.

        * expmed.c (extract_bit_field): Add comment from Jim Wilson. 

Wed Sep 23 13:26:02 1998  Richard Henderson  <rth@cygnus.com>

        * alpha.c (get_aligned_mem): Revert Sep 20 change.
        (alpha_set_memflags, alpha_set_memflags_1): Likewise.
        (alpha_align_insns): Properly calculate initial offset wrt max_align.

Wed Sep 23 10:45:44 1998  Richard Earnshaw (rearnsha@arm.com)

        * arm.c (find_barrier): Revert change of Apr 23.  Handle table
        jumps as a single entity, taking into account the size of the
        table.

Tue Sep 22 15:13:34 1998  Alexandre Petit-Bianco  <apbianco@cygnus.com>

        * tree.def (SWITCH_EXPR): New tree node definition.

Mon Sep 21 23:40:38 PDT 1998 Jeff Law  (law@cygnus.com)

        * version.c: Bump for snapshot.

Mon Sep 21 22:31:14 PDT 1998 Jeff Law  (law@cygnus.com)

        * version.c: Bump for snapshot.

Mon Sep 21 22:48:09 1998  Jeffrey A Law  (law@cygnus.com)

        * configure.in: Recognize i[34567]86-*-openbsd* and handle it like
        NetBSD.

Mon Sep 21 22:05:28 1998  Jeffrey A Law  (law@cygnus.com)

        * Revert this patch.
        * reload.c (find_reloads): Do not replace a pseudo with
        (MEM (reg_equiv_addr)) in the initializing insn for the
        pseudo.

Mon Sep 21 20:19:41 1998  John Carr  <jfc@mit.edu>

        * final.c (final_scan_insn): Disable tracking CC across branches.

Mon Sep 21 17:15:26 EDT 1998  Andrew MacLeod  <amacleod@cygnus.com>

        * expr.h (eh_rtime_match_libfunc): New extern declaration.
        * optabs.c (init_optabs): Set eh_rtime_match_libfunc.
        * except.c (start_catch_handler): Use eh_rtime_match_libfunc.
        * libgcc2.c (__eh_rtime_match): Always return 0 if the matcher is
        NULL. Only include <stdio.h> if inhibit_libc is not defined.

Mon Sep 21 14:10:51 1998  Jason Merrill  <jason@yorick.cygnus.com>

        * toplev.c (rest_of_compilation): Skip compiling anything with
        DECL_EXTERNAL set, not just if it has DECL_INLINE as well.

Mon Sep 21 13:51:05 1998  Jim Wilson  <wilson@cygnus.com>

        * flow.c (find_basic_blocks): Delete check for in_libcall_block when
        prev_code is a CALL_INSN.  Change check for REG_RETVAL note to
        use in_libcall_block.
        (find_basic_blocks_1): Delete check for in_libcall_block when prev_code
        is a CALL_INSN.  If CALL_INSN and in_libcall_block, then change code
        to INSN.

Mon Sep 21 14:02:23 1998

        * i386.h: (TARGET_SWITCHES) Improve doc for align-double.  Fix
        typo in no-fancy-math-387 description.

Mon Sep 21 09:27:18 PDT 1998 Jeff Law  (law@cygnus.com)

        * version.c: Bump for snapshot.

Mon Sep 21 09:24:49 1998   Stan Cox  <scox@cygnus.com>

        * i386-coff.h (DBX_DEBUGGING_INFO): Added.

Mon Sep 21 09:14:49 1998   Robert Lipe  <robertl@dgii.com>

        * i386.h: (TARGET_SWITCHES) Add description fields for flags 
        documented in install.texi.
        (TARGET_OPTIONS) Likewise.

Mon Sep 21 01:39:03 PDT 1998 Jeff Law  (law@cygnus.com)

        * version.c: Bump for snapshot.

Mon Sep 21 01:53:05 1998  Felix Lee  <flee@cygnus.com>

        * c-lex.c (init_lex): Use getenv ("LANG"), not GET_ENVIRONMENT ().
        * cccp.c (main): Likewise.

        * cccp.c, collect2.c, cpplib.c, gcc.c, config/i386/xm-cygwin32.h:
        Rename GET_ENVIRONMENT to GET_ENV_PATH_LIST, and fix some
        macro-use bugs.

Mon Sep 21 00:52:12 1998  Per Bothner  <bothner@cygnus.com>

        * Makefile.in (LIBS):  Link in libiberty.a.
        * c-common.c, gcc.c, toplev.c:  Replace (some) bcopy calls by memcpy.

Sun Sep 20 23:28:11 1998  Richard Henderson  <rth@cygnus.com>

        * reload1.c (emit_reload_insns): Accept a new arg for the bb.  Use
        it to update bb boundaries.  Update caller.
        * function.c (reposition_prologue_and_epilogue_notes): Update
        bb boundaries wrt the moved note.

Sun Sep 20 20:57:02 1998  Robert Lipe  <robertl@dgii.com>
        
        * configure.in (i*86-*-sysv5*): Use fixinc.svr4 to patch byteorder
        problems.
        * configure: Regenerate.

Sun Sep 20 19:01:51 1998  Richard Henderson  <rth@cygnus.com>

        * alpha.c (alpha_sr_alias_set): New variable.
        (override_options): Set it.
        (alpha_expand_prologue, alpha_expand_epilogue): Use it.
        (mode_mask_operand): Fix signed-unsigned comparision warning.
        (alpha_expand_block_move): Likewise.
        (print_operand): Likewise.
        (get_aligned_mem): Use change_address.
        (alpha_set_memflags, alpha_set_memflags_1): Set the alias set.
        (alphaev4_insn_pipe, alphaev4_next_group): New functions.
        (alphaev4_next_nop, alphaev5_next_nop): New functions.
        (alpha_align_insns): Remade from old alphaev5_align_insns
        to handle multiple processors.
        (alpha_reorg): Call alpha_align_insns for both ev4 and ev5.
        * output.h (label_to_alignment): Prototype.

        * tree.c (new_alias_set): New function.
        * tree.h (new_alias_set): Declare it.
        * c-common.c (c_get_alias_set): Use it.

Sun Sep 20 12:35:55 1998  Richard Henderson  <rth@cygnus.com>

        * fold-const.c (fold): Yet another COND_EXPR bug: when folding 
        to an ABS expr, convert an unsigned input to signed.
        
Sun Sep 20 12:14:45 1998  Jeffrey A Law  (law@cygnus.com)

        * fold-const.c (fold): Fix another type in COND_EXPR handling code.

1998-09-20  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * configure.in: Add support for c4x targets.
        * configure: Rebuilt.

Sun Sep 20 00:00:51 1998  Richard Henderson  <rth@cygnus.com>

        * combine.c (distribute_notes): If an insn is a cc0 user, only
        delete it if we can also delete the cc0 setter.

Sun Sep 20 00:22:23 1998  Michael Tiemann  <michael@impact.tiemann.org>

        * fold-const.c (fold): Fix typo in COND_EXPR handling code.
        (invert_truthvalue): Enable truthvalue inversion for
        floating-point operands if -ffast-math.

Sat Sep 19 23:58:07 1998  Melissa O'Neill <oneill@cs.sfu.ca>
                         
        * configure.in: Disable collect2 for nextstep.  Instead use
        crtbegin/crtend.
        * configure: Rebuilt.
        * config/nextstep.h (STARTFILE_SPEC): Add crtbegin.
        (ENDFILE_SPEC): Define.
        (OBJECT_FORMAT_MACHO): Define.
        (EH_FRAME_SECTION_ASM_OP): Define.
        * crtstuff.c: Handle MACHO.

Sun Sep 20 00:24:24 1998  Robert Lipe  <robertl@dgii.com>

        * config/i386/sco5.h (TARGET_MEM_FUNCTIONS):  Define.

1998-09-19  Torbjorn Granlund  <tege@matematik.su.se>

        * fp-bit.c (pack_d): Do not clear SIGN when fraction is 0.
        (_fpadd_parts): Get sign right for 0.

1998-09-19  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * ginclude/varargs.h: Add support for C4x target.
        * ginclude/stdargs.h: Likewise.

Sat Sep 19 12:05:09 1998  Richard Henderson  <rth@cygnus.com>

        * alpha.c (alpha_return_addr): SET should be VOIDmode.
        (alpha_emit_set_long_const): Rewrite to be callable from reload
        and 32-bit hosts.
        (alpha_expand_epilogue): Update for alpha_emit_set_long_const.
        * alpha.md (movdi): Likewise.

Sat Sep 19 07:33:36 1998  Richard Earnshaw (rearnsha@arm.com)

        * arm.c (add_constant): New parameter address_only, change caller.
        Set it non-zero if taking the address of an item in the pool.
        (arm_reorg): Handle cases where we need the address of an item in
        the pool.

        * arm.c (bad_signed_byte_operand): Check both arms of a sum in
        a memory address.
        * arm.md (splits for *extendqihi_insn and *extendqisi_insn): Handle
        memory addresses that are not in standard canonical form.

Sat Sep 19 01:00:32 1998  Michael Hayes  (mph@elec.canterbury.ac.nz)

        * README.C4X: New file with information about the c4x ports.
        * ginclude/va-c4x.h: New file for c4x varargs support.
        * config/c4x: New directory with c4x port files.

Fri Sep 18 22:52:05 1998  Jeffrey A Law  (law@cygnus.com)

        * reload.c (find_reloads): Do not replace a pseudo with 
        (MEM (reg_equiv_addr)) in the initializing insn for the
        pseudo.

Fri Sep 18 23:50:56 1998  David Edelsohn  <edelsohn@mhpcc.edu>

        * toplev.c (rest_of_compilation): Set bct_p on second call to
        loop_optimize.
        * loop.c (loop_optimize, scan_loop, strength_reduce): New argument
        bct_p.
        (strength_reduce): Only call analyze_loop_iterations and
        insert_bct if bct_p set.
        (check_dbra_loop): Fix typo.
        (insert_bct): Use word_mode instead of SImode.
        (instrument_loop_bct): Likewise.  Do not delete iteration count
        condition code generation insn.  Initialize iteration count before
        loop start.
        * rtl.h (loop_optimize): Update prototype.

        * ginclude/va-ppc.h (va_arg): longlong types in overflow area are
        not doubleword aligned.

        * rs6000.c (optimization_options): New function.
        (secondary_reload_class): Only call true_regnum for PSEUDO_REGs.
        * rs6000.h (OPTIMIZATION_OPTIONS): Define.
        (REG_ALLOC_ORDER): Allocate highest numbered condition regsiters
        first; cr1 can be used for FP record condition insns.

Fri Sep 18 09:44:55 1998  Nick Clifton  <nickc@cygnus.com>

        * config/m32r/m32r.h (m32r_block_immediate_operand): Add to
        PREDICATE_CODES.

        * config/m32r/m32r.md: Add "movstrsi" and "movstrsi_internal"
        patterns.

        * config/m32r/m32r.c (m32r_print_operand): Add 's' and 'p'
        operators.
        (block_move_call): New function: Call a library routine to copy a
        block of memory.
        (m32r_expand_block_move): New function: Expand a "movstrsi"
        pattern into a sequence of insns.
        (m32r_output_block_move): New function: Expand a
        "movstrsi_internal" pattern into a sequence of assembler opcodes.
        (m32r_block_immediate_operand): New function: Return true if the
        RTL is an integer constant, less than or equal to MAX_MOVE_BYTES.
        
Thu Sep 17 16:42:16 EDT 1998  Andrew MacLeod  <amacleod@cygnus.com>

        * except.c (start_catch_handler): Issue 'fatal' instead of 'error' and
        re-align some code.
        * libgcc2.c (__eh_rtime_match): fprintf a runtime error. Use <stdio.h>.

Thu Sep 17 12:24:33 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * regmove.c (copy_src_to_dest): Check that modes match.

Wed Sep 16 22:10:42 1998  Robert Lipe  <robertl@dgii.com>

        * config/i386/sco5.h (SUPPORTS_WEAK): True only if targeting ELF.

Wed Sep 16 15:24:54 1998  Richard Henderson  <rth@cygnus.com>

        * i386.h (PREFERRED_RELOAD_CLASS): Respect an existing class
        narrower than FLOAT_REGS.

Wed Sep 16 17:51:00 1998  Alexandre Oliva  <oliva@dcc.unicamp.br>

        * cpplib.c: removed OLD_GPLUSPLUS_INCLUDE_DIR
        * cccp.c: ditto
        * Makefile.in (old_gxx_include_dir): removed

Wed Sep 16 12:29:22 1998  Nick Clifton  <nickc@cygnus.com>

        * config/sh/sh.h: Update definition of HANDLE_PRAGMA to match
        new specification.

        * config/sh/sh.c (handle_pragma): Rename to sh_handle_pragma().
        (sh_handle_pragma): Change function arguments to match new
        specification for HANDLE_PRAGMA. 

Wed Sep 16 12:43:19 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * gen-protos.c (parse_fn_proto): Cast argument of ISALNUM to
        `unsigned char'.
        (main): Mark parameter `argc' with ATTRIBUTE_UNUSED.
        When generating output, initialize missing struct member to zero.

Wed Sep 16 14:47:43 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * regmove.c (copy_src_to_dest): Don't copy if that requires
        (a) new register(s).

Wed Sep 16 01:29:12 1998  Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>

        * global.c (reg_allocno): Now static.
        * reload1.c (reg_allocno): Delete declaration.
        (order_regs_for_reload): Take no arguments.  Don't treat regs
        allocated by global differently than those allocated by local-alloc.

Wed Sep 16 01:09:01 1998  Kamil Iskra  <iskra@student.uci.agh.edu.pl>

        * m68k/m68k.c (output_function_prologue): Reverse NO_ADDSUB_Q
        condition, fix format strings.
        (output_function_epilogue): Likewise.

        * m68k/m68k.c: Don't include <stdlib.h> directly.

Wed Sep 16 00:30:56 1998  Geoff Keating  <geoffk@ozemail.com.au>

        * gcse.c: New definition NEVER_SET for reg_first_set, reg_last_set,
        mem_first_set, mem_last_set; because 0 can be a CUID.
        (oprs_unchanged_p): Use new definition.
        (record_last_reg_set_info): Likewise.
        (record_last_mem_set_info): Likewise.
        (compute_hash_table): Likewise.

Tue Sep 15 22:59:52 1998  Jeffrey A Law  (law@cygnus.com)

        * rs6000.c (output_epilogue): Handle Chill.

        * mn10200.h (ASM_OUTPUT_DWARF2_ADDR_CONST): Define.
        * mn10300.h (ASM_OUTPUT_DWARF2_ADDR_CONST): Define.

        * combine.c (make_extraction): If no mode is specified for
        an operand of insv, extv, or extzv, default it to word_mode.
        (simplify_comparison): Similarly.
        * expmed.c (store_bit_field): Similarly.
        (extract_bit_field): Similarly.
        * function.c (fixup_var_regs_1): Similarly.
        * recog.c (validate_replace_rtx_1): Similarly.
        * mips.md (extv, extzv, insv expanders): Default modes for most
        operands.  Handle TARGET_64BIT.
        (movdi_uld, movdi_usd): New patterns.

        * pa.c (emit_move_sequence): Do not replace a pseudo with its
        equivalent memory location unless we have been provided a scratch
        register.  Similarly do not call find_replacement unless a
        scratch register has been provided.

Tue Sep 15 19:23:01 1998  Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>

        * i386.h (PREFERRED_RELOAD_CLASS): For standard 387 constants,
        return FLOAT_REGS.

Tue Sep 15 19:09:06 1998  Richard Henderson  <rth@cygnus.com>

        * tree.h (BUILT_IN_CALLER_RETURN_ADDRESS): Unused.  Kill.
        (BUILT_IN_FP, BUILT_IN_SP, BUILT_IN_SET_RETURN_ADDR_REG): Kill.
        (BUILT_IN_EH_STUB_OLD, BUILT_IN_EH_STUB, BUILT_IN_SET_EH_REGS): Kill.
        (BUILT_IN_EH_RETURN, BUILT_IN_DWARF_CFA): New.
        * c-decl.c (init_decl_processing): Update accordingly.
        * expr.c (expand_builtin): Likewise.

        * rtl.h (global_rtl): Add cfa entry.
        (virtual_cfa_rtx, VIRTUAL_CFA_REGNUM): New.
        (LAST_VIRTUAL_REGISTER): Update.
        * emit-rtl.c (global_rtl): Add cfa entry.
        (init_emit): Initialize it.
        * function.c (cfa_offset): New.
        (instantiate_virtual_regs): Initialize it.
        (instantiate_virtual_regs_1): Instantiate virtual_cfa_rtx.
        (expand_function_end): Call expand_eh_return.
        * tm.texi (ARG_POINTER_CFA_OFFSET): New.

        * except.c (current_function_eh_stub_label): Kill.
        (current_function_eh_old_stub_label): Likwise; update all references.
        (expand_builtin_set_return_addr_reg): Kill.
        (expand_builtin_eh_stub_old, expand_builtin_eh_stub): Kill.
        (expand_builtin_set_eh_regs): Kill.
        (eh_regs): Produce a third reg for the actual handler address.
        (eh_return_context, eh_return_stack_adjust): New.
        (eh_return_handler, eh_return_stub_label): New.
        (init_eh_for_function): Initialize them.
        (expand_builtin_eh_return, expand_eh_return): New.
        * except.h: Update prototypes.
        * flow.c (find_basic_blocks_1): Update references to the stub label.
        * function.h (struct function): Kill stub label elements.

        * libgcc2.c (in_reg_window): For REG_SAVED_REG, check that the
        register number is one that would be in the previous window.
        Provide a dummy definition for non-windowed targets.
        (get_reg_addr): New function.
        (get_reg, put_reg, copy_reg): Use it.
        (__throw): Rely on in_reg_window, not INCOMING_REGNO.  Kill stub
        generating code and use __builtin_eh_return.  Use __builtin_dwarf_cfa.

        * alpha.c (alpha_eh_epilogue_sp_ofs): New.
        (alpha_init_expanders): Initialize it.
        (alpha_expand_epilogue): Use it.
        * alpha.h: Declare it.
        * alpha.md (eh_epilogue): New.

        * m68h.h (ARG_POINTER_CFA_OFFSET): New.
        * sparc.h (ARG_POINTER_CFA_OFFSET): New.

Tue Sep 15 19:31:58 1998  Michael Meissner  <meissner@cygnus.com>

        * i960.h (CONST_COSTS): Fix thinko.  Test flag, not the constant
        flag bit mask.

Tue Sep 15 14:10:54 EDT 1998  Andrew MacLeod  <amacleod@cygnus.com>

        * except.h (struct eh_entry): Add false_label field.
        (end_catch_handler): Add prototype.
        * except.c (push_eh_entry): Set false_label field to NULL_RTX.
        (start_catch_handler): When using old style exceptions, issue
        runtime typematch code before continuing with the handler.
        (end_catch_handler): New function, generates label after handler
        if needed by older style exceptions.
        (expand_start_all_catch): No need to check for new style exceptions.
        (output_exception_table_entry): Only output the first handler label
        for old style exceptions.
        * libgcc2.c (__eh_rtime_match): New routine to lump runtime matching
        mechanism into one function, if a runtime matcher is provided.

Tue Sep 15 13:53:59 EDT 1998  Andrew MacLeod  <amacleod@cygnus.com>

        * config/i960/i960.h (SLOW_BYTE_ACCESS): Change definition to 1.

Tue Sep 15 09:59:01 1998  Mark Mitchell  <mark@markmitchell.com>

        * integrate.c (copy_decl_list): Fix typo.

Tue Sep 15 04:18:52 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * config/sparc/sparc.md (movdf_const_intreg_sp32): Fix length
        attribute.

Mon Sep 14 14:02:53 PDT 1998 Jeff Law  (law@cygnus.com)

        * version.c: Bump for snapshot.

Mon Sep 14 10:33:56 PDT 1998 Jeff Law  (law@cygnus.com)

        * version.c: Bump for snapshot.

Mon Sep 14 09:51:05 PDT 1998 Jeff Law  (law@cygnus.com)

        * version.c: Bump for snapshot.

Sun Sep 13 22:10:18 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * invoke.texi (C Dialect Options): Put back missing @end itemize.

Mon Sep 14 02:33:46 1998  Alexandre Oliva  <oliva@dcc.unicamp.br>

        * configure.in: remove usage of `!' to negate the result of a
        command; some common shells do not support it

Sun Sep 13 19:17:35 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * configure.in: in sparc9-sol2 config, use 'if test' not
        brackets.
        * configure: Rebuilt.

        * config/sparc/sol2-sld-64.h (SPARC_DEFAULT_CMODEL): Change to
        CM_MEDANY.
        (CPP_CPU_SPEC): Do not define _LP64, header files do this.
        (CPP_CPU_DEFAULT_SPEC): Likewise.
        * config/sparc/sol2.h (INIT_SUBTARGET_OPTABS): Get the names right
        for arch64 libfuncs.
        
        * config/sparc/sparc.md (goto_handler_and_restore): Allow any mode
        for operand zero.

Sun Sep 13 09:11:59 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * acconfig.h (NEED_DECLARATION_STRSIGNAL): Provide a stub.

        * collect2.c: Don't declare `sys_siglist' here.
        (my_strsignal): Prototype and define new function.  Use it in
        place of `sys_siglist' hacks.

        * mips_tfile.c:  Likewise.

        * configure.in (AC_CHECK_FUNCS): Check for strsignal.
        (GCC_NEED_DECLARATIONS): Likewise.

        * system.h (strsignal): Prototype it, if necessary.
        (sys_siglist): Declare it, if necessary.

Sun Sep 13 04:37:28 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * loop.c (move_movables): While removing insn sequences, preserve
        the next pointer of the most recently deleted insn when we skip
        over a NOTE.

Sun Sep 13 08:13:39 1998  Ben Elliston  <bje@cygnus.com>