Move entries to proper place.

[gcc.git] / gcc / ChangeLog

Mon Jan  4 15:37:30 1999  Zack Weinberg  <zack@rabi.phys.columbia.edu>

        * cpplib.c (skip_if_group): Split out the logic that handles
        directive recognition to its own function.  Don't use
        parse markers; use a bare pointer into the buffer.  Use
        copy/skip_rest_of_line instead of doing it by hand.  Remove
        `return on any directive' mode which was never used, and take
        only one argument.
        (consider_directive_while_skipping): New function, subroutine
        of skip_if_group.  Logic streamlined a bit.
        (conditional_skip, do_elif, do_else): Call skip_if_group with
        only one argument.

Mon Jan  4 15:27:30 1999  Zack Weinberg  <zack@rabi.phys.columbia.edu>

        * cpplib.c (do_undef): EOF immediately after '#undef FOO' is not an
        error.

Mon Jan  4 11:55:51 1999  Jason Merrill  <jason@yorick.cygnus.com>

        * extend.texi (Bound member functions): Document.

Mon Jan  4 11:01:48 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * mips-tdump.c (st_to_string, sc_to_string, glevel_to_string,
        lang_to_string, type_to_string): Make return type const char*.
        (print_symbol): Apply `const' keyword to a char*.
        (print_file_desc): Cast structure member `crfd' to ulong when
        comparing against one.

        * mips-tfile.c (pfatal_with_name): Apply `const' keyword to char*.
        (fatal, error): Add ATTRIBUTE_PRINTF_1 to prototypes.
        (progname, input_name): Apply `const' keyword to a char*.
        Don't redundantly include sys/stat.h.
        (alloc_info): Apply `const' keyword to a char*.
        (st_to_string, sc_to_string): Likewise.
        (hash_string): Cast variable `hash_string' to a symint_t when
        comparing against one.
        (add_string): Cast PAGE_USIZE to Ptrdiff_t when comparing against one.
        Likewise cast it to long when comparing against one.
        (add_local_symbol): Apply `const' keyword to a char*.
        (add_ext_symbol): Likewise.
        (add_unknown_tag): Likewise.
        (add_procedure): Cast a printf-style field width to an int.
        (add_file): Cast PAGE_USIZE to long when comparing against one
        (parse_begin): Cast a printf-style field width to an int.
        (parse_bend): Likewise.
        (parse_def): Likewise.
        (parse_end): Likewise.
        (mark_stabs): Mark parameter `start' with ATTRIBUTE_UNUSED.
        (parse_stabs_common): Fix format specifier.
        (parse_input): Change type of variable `i' to Size_t.
        (write_object): Fix arguments to match format specifiers.
        Cast variable `num_write' to long when comparing against one.
        (read_seek): Cast variable `sys_read' to symint_t when comparing
        against one.  Fix arguments to match format specifiers.  Cast
        variable `size' to long when comparing against one.
        (copy_object): Cast result of `sizeof' to int when comparing
        against one.  Fix arguments to match format specifiers.  Cast
        variable `ifd' to long when comparing against a signed value.
        Likewise, likewise.
        
Mon Jan  4 10:30:33 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * c-common.c (decl_attributes): Allow applying attribute `unused'
        on a LABEL_DECL.

        * c-parse.in (label): Parse attributes after a label, and call
        `decl_attributes' to handle them.

        * gansidecl.h (ATTRIBUTE_UNUSED_LABEL): Define.

        * genrecog.c (OUTPUT_LABEL, write_tree_1, write_tree): When
        generating labels, mark them with ATTRIBUTE_UNUSED_LABEL.

        * invoke.texi: Note that labels can be marked `unused'.

Sun Jan 3 23:32:18 PST 1999 Jeff Law  (law@cygnus.com)

        * version.c: Bump for snapshot.

Sun Jan  3 23:00:42 1999  Jeffrey A Law  (law@cygnus.com)

        * optabs.c (emit_cmp_and_jump_insns): Use CONSTANT_P canonicalizing
        RTL for a compare/jump sequence.
        
Sun Jan  3 22:58:15 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * optabs.c (emit_cmp_insn): Abort if asked to emit non-canonical RTL
        for a target with HAVE_cc0 defined.
        (emit_cmp_and_jump_insns): New function.
        * expr.h (emit_cmp_and_jump_insns): Prototype it.
        * loop.c (check_dbra_loop): Use it to replace calls
        to emit_cmp_insn and emit_jump_insn and to canonicalise
        the comparison if necessary.
        * unroll.c (unroll_loop): Likewise.

Sun Jan  3 21:01:04 1999  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>

        * fixincludes (sys/utsname.h): Provide forward declaration of
        struct utsname on Ultrix V4.[35].

        * mips.md (div_trap): Use local labels instead of dot-relative
        branches.

Sun Jan  3 20:40:34 1999  Jeffrey A Law  (law@cygnus.com)

        * pa.md (branch, negated branch): Handle (const_int 0) as first
        source operand.
        * pa.c (output_cbranch): Likewise.

Sun Jan  3 03:20:38 1999  David Edelsohn  <edelsohn@mhpcc.edu>

        * rs6000.c (rs6000_stack_info): Undo spurious part of last
        change.

1999-01-01  Manfred Hollstein  <manfred@s-direktnet.de>

        * extend.texi (__builtin_constant_p): Add missing @smallexample.

Fri Jan  1 11:48:20 1999  Jeffrey A Law  (law@cygnus.com)

        * i386.md (doubleword shifts): Fix dumb mistakes in previous change.

Wed Dec 30 23:38:55 1998  Jeffrey A Law  (law@cygnus.com)

        * m68k.md (adddi_dilshr32): Allow all operands to be registers too.
        (adddi_dishl32): Similarly.

        * cse.c (invalidate_skipped_block): Call invalidate_from_clobbers
        for each insn in the skipped block.

        * reload1.c (reload_as_needed): Verify that the insn satisfies its
        constraints after replacing a register address with an autoincrement
        address for reload inheritance purposes.

        * i386.md (doubleword shifts): Avoid namespace pollution.

Wed Dec 30 23:00:28 1998  David O'Brien <obrien@NUXI.com>

        * configure.in (FreeBSD ELF): Needs special crt files.

Wed Dec 30 22:50:13 1998  Geoffrey Noer  <noer@cygnus.com>

        * i386/xm-cygwin.h: change DIR_SEPARATOR to forward slash.

1998-12-30  Andreas Schwab  <schwab@issan.cs.uni-dortmund.de>

        * loop.c (check_dbra_loop): While reversing the loop, if the
        comparison value has a VOID mode use the mode of the other operand
        to compute the mask.

Wed Dec 30 22:24:00 1998  Michael Meissner  <meissner@cygnus.com>

        * rs6000.md ({save,restore}_stack_function): Take 2 operands to
        avoid warnings in compiling explow.c.

        (patch from Ken Raeburn, raeburn@cygnus.com)
        * rs6000.c (rs6000_stack_info): Force 8-byte alignment of
        fpmem_offset.  Compute total size after that, and then
        rs6000_fpmem_offset using both values.

Mon Dec 28 19:26:32 1998  Gerald Pfeifer  <pfeifer@dbai.tuwien.ac.at>

        * gcc.texi (Non-bugs): ``Empty'' loops will be optimized away in
        the future; indeed that already happens in some cases.

Tue Dec 29 11:58:53 1998  Richard Henderson  <rth@cygnus.com>

        * sparc.c (input_operand): Recognize (const (constant_p_rtx)).
        (arith_operand): Remove constant_p_rtx handling.
        (const64_operand, const64_high_operand): Likewise.
        (arith11_operand, arith10_operand, arith_double_operand): Likewise.
        (arith11_double_operand, arith10_double_operand, small_int): Likewise.
        (small_int_or_double, uns_small_int, zero_operand): Likewise.
        * sparc.h (PREDICATE_CODES): Likewise.

        * rtl.h (CONSTANT_P): Remove CONSTANT_P_RTX.

Tue Dec 29 11:32:54 1998  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>:

        * rtl.def (CONSTANT_P_RTX): Clarify commentary.
        * expr.c (expand_builtin, case BUILT_IN_CONSTANT_P): Rework to
        consider constant CONSTRUCTOR constant and to defer some cases
        to cse.
        * cse.c (fold_rtx, case CONST): Add handling for CONSTANT_P_RTX.
        * regclass.c (reg_scan_mark_refs, case CONST): Likewise.

Tue Dec 29 11:30:10 1998  Richard Henderson  <rth@cygnus.com>

        * expr.c (init_expr_once): Kill can_handle_constant_p recognition.
        * cse.c (fold_rtx, case 'x'): Remove standalone CONSTANT_P_RTX code.

        * alpha.c (reg_or_6bit_operand): Remove CONSTANT_P_RTX handling.
        (reg_or_8bit_operand, cint8_operand, add_operand): Likewise.
        (sext_add_operand, and_operand, or_operand): Likewise.
        (reg_or_cint_operand, some_operand, input_operand): Likewise.
        * alpha.h (PREDICATE_CODES): Likewise.

Sat Dec 26 23:26:26 PST 1998 Jeff Law  (law@cygnus.com)

        * version.c: Bump for snapshot.

Sat Dec 26 09:17:04 1998  Jeffrey A Law  (law@cygnus.com)

        * gengenrtl.c (gencode): Always use bzero to clear memory instead
        of dangerous casts and stores.

        * Makefile.in (compare, gnucompare): Add missing else true clauses.

Fri Dec 25 23:00:56 1998  Jeffrey A Law  (law@cygnus.com)

        * alpha.md (builtin_longjmp): Add missing "DONE".

Thu Dec 24 10:39:57 1998  Stan Cox  <scox@cygnus.com>

        * gcc.c (execute): Enable -pipe with win32.

Wed Dec 23 10:27:44 1998  Nick Clifton  <nickc@cygnus.com>

        * config/arm/t-arm-elf: Add multiplib option for leading
        underscores.

        * config/arm/thumb.h (ASM_OUTPUT_LABELREF): Use variable
        'user_label_prefix' rather than macro USER_LABEL_PREFIX.

        (thumb_shiftable_const): Use macro 'BASE_REG_CLASS' rather
        than variable 'reload_address_base_reg_class'.  [Note this
        change is unrelated to the others in this patch].

        * config/arm/unknown-elf.h (USER_LABEL_PREFIX): Default to no
        leading underscore.

Wed Dec 23 09:51:32 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * alias.c (record_alias_subset): Remove ignored `&'.
        (init_alias_once): Likewise.

        * c-lex.c (UNGETC): Cast first argument of comma expression to void.

        * config/mips/mips.c (mips_asm_file_end): Cast the result of
        fwrite to `int' when comparing against one.

        * config/mips/mips.h (CAN_ELIMINATE): Add parens around && within ||.
        (INITIAL_ELIMINATION_OFFSET): Add braces to avoid ambiguous `else'.

        * cse.c (rehash_using_reg): Change type of variable `i' to
        unsigned int.

        * dwarf2out.c (initial_return_save): Cast -1 to unsigned before
        assigning it to one.

        * except.c (duplicate_eh_handlers): Remove unused variable `tmp'.

        * final.c (final_scan_insn): Likewise for variable `i'.
        (output_asm_insn): Cast a char to unsigned char when used as an
        array index.

        * gcse.c (compute_pre_ppinout): Cast -1 to SBITMAP_ELT_TYPE when
        assigning it to one.

        * loop.c (strength_reduce): Remove unused variables `count' and `temp'.

        * recog.c (preprocess_constraints): Cast a char to unsigned char
        when used as an array index.

        * regmove.c (find_matches): Likewise.

        * reload1.c (calculate_needs): Add default case in switch.
        (eliminate_regs_in_insn): Initialize variable `offset'.
        (set_offsets_for_label): Change type of variable `i' to unsigned.
        (reload_as_needed): Wrap variable `i' in macro check on
        AUTO_INC_DEC || INSN_CLOBBERS_REGNO_P.

        * scan-decls.c (scan_decls): Mark parameters `argc' and `argv'
        with ATTRIBUTE_UNUSED.  Cast variable `start_written' to size_t
        when comparing against one.

        * stor-layout.c (layout_decl): Cast maximum_field_alignment to
        unsigned when comparing against one.  Likewise for
        GET_MODE_ALIGNMENT().
        (layout_record): Cast record_align to int when comparing against a
        signed value. 
        (layout_type): Cast TYPE_ALIGN() to int when comparing against a
        signed value.

        * tree.c (get_identifier): Cast variable `len' to unsigned when
        comparing against one.
        (maybe_get_identifier): Likewise

Wed Dec 23 00:10:01 1998  Jeffrey A Law  (law@cygnus.com)

        * toplev.c (rest_of_compilation): Do not set reload_completed.
        * reload1.c (reload): Set reload_completed before calling
        cleanup_subreg_operands.

Tue Dec 22 23:58:31 1998  Richard Henderson  <rth@cygnus.com>

        * reload1.c (emit_reload_insns): Check `set' not null before use.

Tue Dec 22 15:15:45 1998  Nick Clifton  <nickc@cygnus.com>

        * rtlanal.c (multiple_sets): Change type of 'found' from 'rtx' to
        'int'. 

Tue Dec 22 13:55:44 1998  Theodore Papadopoulo <Theodore.Papadopoulo@sophia.inria.fr>

        * halfpic.c (half_pic_encode): Delete redundant code.

Tue Dec 22 13:02:22 1998  Michael Meissner  <meissner@cygnus.com>

        * toplev.c (main): Delete handling of -dM as a preprocessor
        option.

Mon Dec 21 17:39:38 1998  Michael Meissner  <meissner@cygnus.com>

        * toplev.c (main): Don't emit any warnings when using -dD, -dM, or
        -dI, which are handled by the preprocessor.

Sun Dec 20 16:13:44 1998  John F. Carr  <jfc@mit.edu>

        * configure.in: Handle Digital UNIX 5.x the same as 4.x.
        * i386/sol2.h: Define LOCAL_LABEL_PREFIX as ".".

Sun Dec 20 07:39:52 PST 1998 Jeff Law  (law@cygnus.com)

        * version.c: Bump for snapshot.

Sat Dec 19 22:24:22 PST 1998 Jeff Law  (law@cygnus.com)

        * version.c: Bump for snapshot.

Sat Dec 19 21:41:32 PST 1998 Jeff Law  (law@cygnus.com)

        * version.c: Bump for snapshot.

Sat Dec 19 09:52:27 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * genattr.c (fatal): Qualify a char* with the `const' keyword.
        
        * genattrtab.c (fatal, attr_printf, attr_string, write_attr_set,
        write_unit_name, write_eligible_delay, expand_units,
        make_length_attrs, write_attr_case, find_attr,
        make_internal_attr): Likewise.
        * gencheck.c (tree_codes): Likewise.
        * gencodes.c (fatal): Likewise.
        * genconfig.c (fatal): Likewise.
        * genemit.c (fatal): Likewise.
        * genextract.c (fatal, walk_rtx, copystr): Likewise.
        * genflags.c (fatal): Likewise.
        * genopinit.c (fatal, optabs, gen_insn): Likewise.
        * genoutput.c (fatal, error, predicates): Likewise.
        * genpeep.c (fatal): Likewise.
        * genrecog.c (fatal, decision, pred_table, add_to_sequence,
        write_tree_1, write_tree, change_state, copystr, indents): Likewise.

Thu Dec 17 18:21:49 1998  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>

        * configure.in (with-fast-fixincludes): Fix whitespace.
        * configure: Rebuilt.

        * fixincludes (c_asm.h): Wrap Digital UNIX V4.0B DEC C specific
        asm() etc. function declarations in __DECC.

Thu Dec 17 13:57:23 1998  Nick Clifton  <nickc@cygnus.com>

        * expr.c (emit_move_insn_1): Only emit a clobber if the target
        is a pseudo register.

Thu Dec 17 13:50:29 1998  Nick Clifton  <nickc@cygnus.com>

        * gcse.c: Include expr.h in order to get the prototype for
        get_condition() which is used in delete_null_pointer_checks(). 

Thu Dec 17 15:58:26 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * hwint.h: New file to consolidate HOST_WIDE_INT (etc) macros.

Thu Dec 17 12:31:12 1998  Jim Wilson  <wilson@cygnus.com>

        * Makefile.in (INTERNAL_CFLAGS): Add SCHED_CFLAGS.
        (ALL_CFLAGS): Delete SCHED_CFLAGS.

1998-12-17  Vladimir N. Makarov  <vmakarov@cygnus.com>

        * config/i60/i960.md (extendqihi2): Fix typo (usage ',' instead of
        ';').

1998-12-17  Michael Tiemann  <tiemann@axon.cygnus.com>

        * i960.md (extend*, zero_extend*): Don't generate rtl that looks
        like (subreg:SI (reg:SI N) 0), because it's wrong, and it hides
        optimizations from the combiner.

Thu Dec 17 08:27:03 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * loop.c (combine_givs_used_by_other): Don't depend on n_times_set.

Wed Dec 16 17:30:35 1998  Nick Clifton  <nickc@cygnus.com>

        * toplev.c (main): Disable optimize_size if a specific
        optimization level is requested.  Always set optimization
        level to 2 if -Os is specified.

Wed Dec 16 16:33:04 1998  Dave Brolley  <brolley@cygnus.com>

        * objc/lang-specs.h: Pass -MD, -MMD and -MG to cc1obj if configured with
        cpplib.
        * cpplib.c (cpp_start_read): If in_fname is not initialized, try to
        initialize it using fname.

1998-12-16  Zack Weinberg  <zack@rabi.phys.columbia.edu>

        * cpplib.c (do_include): Treat #include_next in the
        primary source file as #include plus warning.  Treat
        #include_next in a file included by absolute path as an
        error.  fp == CPP_NULL_BUFFER is a fatal inconsistency.

Wed Dec 16 12:28:54 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * cccp.c: Don't define MIN/MAX anymore.
        * cpplib.c: Likewise.
        * machmode.h: Likewise.
        * system.h: Provide definitions for MIN/MAX.

Tue Dec 15 23:47:42 1998  Zack Weinberg  <zack@rabi.phys.columbia.edu>  

        * fix-header.c: Don't define xstrdup here.

Wed Dec 16 05:11:04 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * loop.c (consec_sets_giv): New argument last_consec_insn.
        (strength_reduce): Provide / use it.

Wed Dec 16 17:24:07 1998  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * loop.h (loop_info): New field 'vtop'.
        * loop.c (check_dbra_loop):  Use loop_info->vtop rather than
        scanning loop for vtop.
        * unroll.c (subtract_reg_term, find_common_reg_term): New functions.
        (loop_iterations): Use them to determine if loop has a constant
        number of iterations.  Set loop_info->vtop.  Don't subtract
        common reg term from initial_value and final_value if have a
        do-while loop.

Tue Dec 15 13:49:55 1998  Jeffrey A Law  (law@cygnus.com)

        * mn10200.md (addsi3 expander): Use "nonmemory_operand" for operand 2.

        * mn10300.md (bset, bclr): Operand 0 is a read/write operand.

        * mn10200.md (abssf2, negsf2): New expanders.

        * mn10300.md (absdf2, abssf2, negdf2, negsf2): New expanders.

Tue Dec 15 11:55:30 1998  Nick Clifton  <nickc@cygnus.com>

        * integrate.c (copy_rtx_and_substitute): If a SUBREG is
        replaced by a CONCAT whoes components do not have the same
        mode as the original SUBREG, use a new SUBREG to restore the
        mode. 

        * emit-rtl.c (subreg_realpart_p): Cope with subregs containing
        multiword complex values.

1998-12-15  Zack Weinberg  <zack@rabi.phys.columbia.edu>

        * cppalloc.c: Add xstrdup here.
        * cpplib.h: Remove savestring prototype.
        * cpplib.c: Remove savestring function. s/savestring/xstrdup/
          throughout. 
        * cppfiles.c: s/savestring/xstrdup/ throughout.

1998-12-15  Zack Weinberg  <zack@rabi.phys.columbia.edu>

        * cpplib.c: Make all directive handlers read their own
          arguments.
          (struct directive): Remove last two arguments from FUNC
          member prototype. Remove `command_reads_line' member
          entirely.
          (directive_table): Remove initializations of
          command_reads_line flag.  Pretty-print.
          (eval_if_expression, do_define, do_line, do_include,
          do_undef, do_error, do_pragma, do_ident, do_if, do_xifdef,
          do_else, do_elif, do_sccs, do_assert, do_unassert,
          do_warning): Take only two args.

          (cpp_define): Call do_define with two args and the text to
          define stuffed into a buffer.
          (make_assertion): Call do_assert with two args.
          (handle_directive): Call do_line with two args. Call
          kt->func with two args.  Remove command_reads_line
          processing.
          (do_define, do_undef, do_error, do_warning, do_pragma,
          do_sccs): Read the rest of the line here.
          (do_ident): Gobble rest of line, as cccp does.
          (cpp_undef): New function.
          (cpp_start_read): Call cpp_undef instead of do_undef.

1998-12-15  Zack Weinberg  <zack@rabi.phys.columbia.edu>

        * cpphash.h (union hash_value): Remove `keydef' member, add a
          `struct hashnode *aschain' member for #assert.  

          * cpplib.c (struct tokenlist_list, struct
          assertion_hashnode): Delete structure definitions.
          (assertion_install, assertion_lookup, delete_assertion,
          check_assertion, compare_token_lists, reverse_token_list,
          read_token_list, free_token_list): Delete functions.
          (parse_assertion): New function.  
          (cpp_cleanup): Don't destroy the assertion_hashtable.

          (do_assert): Gut and rewrite.  #assert foo (bar) places
          entries for `#foo' and `#foo(bar)' in the macro hash table,
          type T_ASSERT.  The value union's `aschain' member is used
          to chain all answers for a given predicate together.
          (do_unassert): Also rewritten.  Take an un-asserted
          answer off the chain from its predicate and call
          delete_macro on the hashnode, or walk a predicate chain
          calling delete_macro on all the entries.
          (cpp_read_check_assertion): Simply call parse_assertion to
          get the canonical assertion name, and look that up in the
          hash table.

        * cpplib.h (ASSERTION_HASHNODE,ASSERTION_HASHSIZE,assertion_hashtab):
        Removed.

        * cpphash.c (install): Use bcopy instead of an explicit loop
          to copy the macro name.

        * cppexp.c (cpp_lex): Convert the result of
          cpp_read_check_assertion to a `struct operation' directly;
          don't go through parse_number.

Tue Dec 15 18:27:39 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * loop.h (struct induction): Delete times_used member.
        * loop.c (n_times_set): Rename to set_in_loop.  Changed all users.
        (n_times_used): Rename to n_times_set.  Changed all users.
        (scan_loop): Free reg_single_usage before strength reduction.
        (record_giv, combine_givs): Remove handling of times_used member.
        (combine_givs_used_once): Rename to:
        (combine_givs_used_by_other) .  Changed all callers.

Tue Dec 15 01:45:26 1998  Jason Merrill  <jason@yorick.cygnus.com>

        * dwarf2out.c (gen_struct_or_union_type_die): Check AGGREGATE_TYPE_P
        instead of TREE_CODE_CLASS == 't'.
        (gen_type_die): Likewise.
        (scope_die_for): Ignore FUNCTION_TYPE "scopes".

Mon Dec 14 16:23:27 1998  Jim Wilson  <wilson@cygnus.com>

        * real.c (endian): Disable last change unless
        HOST_BITS_PER_WIDE_INT is greater than 32.

Mon Dec 14 17:13:36 EST 1998  Andrew MacLeod  <amacleod@cygnus.com>

        * output.h (force_data_section): New prototype.
        * varasm.c (force_data_section): New function to force the
        data section, regardless of what in_section thinks.
        * dwarf2out.c (output_call_frame_info): Call force_data_section
        since varasm may not realize we've changes sections.

Mon Dec 14 14:09:34 1998  Nick Clifton  <nickc@cygnus.com>

        * reload1.c (reload): Delete REG_RETVAL and REG_LIBCALL notes
          after completeing reload.

        * rtl.texi: Document that REG_RETVAL and REG_LIBCALL are
          deleted after reload.

Mon Dec 14 01:39:28 1998  Jeffrey A Law  (law@cygnus.com)

        * rtl.h (multiple_sets): Fix prototype.
        * rtlanal.c (multiple_sets): Fix return type.

Sun Dec 13 12:43:58 PST 1998 Jeff Law  (law@cygnus.com)

        * version.c: Bump for snapshot.

Sun Dec 13 01:05:22 PST 1998 Jeff Law  (law@cygnus.com)

        * version.c: Bump for snapshot.

1998-12-13  Manfred Hollstein  <manfred@s-direktnet.de>

        * protoize.c (fputs): Wrap extern declaration in #ifndef fputs.

Sun Dec 13 00:24:14 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * rtl.h (recompute_reg_usage): Add second argument.
        * flow.c (recompute_reg_usage): Likewise.
        * toplev.c (rest_of_compilation): Supply second argument to
        recompute_reg_usage.

        * reload1.c (compute_use_by_pseudos): Allow reg_renumber[regno] < 0
        after reload.

Sat Dec 12 23:39:10 1998  Jeffrey A Law  (law@cygnus.com)

        * m68k/t-m68kelf (MULTILIB_OPTIONS): Add mcpu32.
        (MULTILIB_MATCHES): -m68332 now uses mcpu32 libraries, not m68000.
        (MULTILIB_EXCEPTIONS): Don't build 68881 libraries for m68000,
        mcpu32 or m5200.

        * i386/next.h (ASM_OUTPUT_ALIGN): Use 0x90 for fill character.

        * rtlanal.c (multiple_sets): New function.
        * rtl.h (multiple_sets): Declare it.
        * local-alloc.c (wipe_dead_reg): Use it.
        * global.c (global_conflicts): Likewise.

Sat Dec 12 22:13:02 1998  Mark Mitchell  <mark@markmitchell.com>

        * global.c (record_conflicts): Don't use an array of shorts to
        store an array of ints.
        (global_conflicts): Likewise.

Sat Dec 12 16:49:24 1998  Richard Henderson  <rth@cygnus.com>

        * alpha.c (alpha_expand_block_move): mode_for_size expects
        bits, not bytes.  Infer extra alignment from addressof.

1998-12-11  Michael Meissner  <meissner@cygnus.com>

        * rs6000/sysv4.h (ASM_OUTPUT_ALIGNED_LOCAL): Put small data in the
        .sbss section, not .sdata.

1998-12-11  Manfred Hollstein  <manfred@s-direktnet.de>

        * cccp.c: Do not #include <sys/stat.h> here; this is already done
        by "system.h".
        * collect2.c: Likewise.
        * cpplib.h: Likewise.
        * gcc.c: Likewise.
        * gcov.c: Likewise.
        * getpwd.c: Likewise.
        * protoize.c: Likewise.
        * toplev.c: Likewise.

        * cpplib.h (HOST_WIDE_INT): Get definition from "machmode.h"
        and don't try to define it here.
        * Makefile.in (cppmain.o): Depend on machmode.h.
        (cpplib.o): Likewise.
        (cpperror.o): Likewise.
        (cppexp.o): Likewise.
        (cppfiles.o): Likewise.
        (cpphash.o): Likewise.
        (cppalloc.o): Likewise.
        (fix-header.o): Likewise.
        (scan-decls.o): Likewise.

Fri Dec 11 11:02:49 1998  Stan Cox  <scox@cygnus.com>

        * sh.c (print_operand): lookup interrupt_handler attribute instead
        of relying on static variable. 
        * (calc_live_regs): Likewise.
        * (sh_pragma_insert_attributes): Create interrupt_handler
        attribute if a pragma was specified
        * (sh_valid_machine_decl_attribute): Don't set static flag.
        * sh.h (PRAGMA_INSERT_ATTRIBUTES): New.

Fri Dec 11 12:56:07 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * reload1.c (reload_combine): Use BASIC_BLOCK_LIVE_AT_START
        to determine if a register is live at a jump destination.
        Everything is dead at a BARRIER.

Thu Dec 10 16:02:06 1998  Jim Wilson  <wilson@cygnus.com>

        * cse.c (simplify_unary_operation): Sign-extend constants when
        they have the most significant bit set for the target.
        * real.c (endian): Sign-extend 32 bit output values on a 64 bit
        host.
        * m32r/m32r.c (m32r_expand_prologue): Store pretend_size in
        HOST_WIDE_INT temporary before negating it.
        * m32r/m32r.md (movsi_insn+1): Use ~0xffff instead of 0xffff0000.

Thu Dec 10 15:05:59 1998  Dave Brolley  <brolley@cygnus.com>

        * objc/objc-act.c (lang_init_options): Enclose cpplib related code in
        #if USE_CPPLIB.

Thu Dec 10 13:39:46 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * collect2.h: New header file for prototypes.

        * Makefile.in (collect2.o, tlink.o): Depend on collect2.h.

        * collect2.c: Include collect2.h.
        * tlink.c: Likewise.

Wed Dec  9 23:55:11 1998  Jeffrey A Law  (law@cygnus.com)

        * flow.c: Update some comments.

Wed Dec  9 15:29:26 1998  Dave Brolley  <brolley@cygnus.com>

        * objc/objc-act.c (cpp_initialized): Removed.
        (lang_init_options): Initialize cpplib.
        (lang_decode_option): Move initialization of cpplib to
        lang_init_options.
        * c-lang.c: (parse_options,parse_in): Added.
        (lang_init_options): Initialized cpplib here.
        * c-decl.c (parse_options,cpp_initialized): Removed.
        (c_decode_option): Move initialization of cpplib to
        lang_init_options.

Wed Dec  9 19:36:57 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * reload1.c (reload_combine, reload_combine_note_store):
        Make STORE_RUID always valid.
        (reload_combine): Check if BASE is clobbered too early.

Wed Dec  9 09:53:58 1998  Nick Clifton  <nickc@cygnus.com>

        * reload.c (find_reloads): Display the insn that cannot be
        reloaded. 

Wed Dec  9 12:15:26 1998  Dave Brolley  <brolley@cygnus.com>

        * cccp.c (create_definition): Fix end of bufer logic.

Wed Dec  9 10:15:45 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * except.c (duplicate_eh_handlers, rethrow_symbol_map): Function
        pointer parameters changed to use the PARAMS() macro.

Wed Dec  9 09:12:40 EST 1998  Andrew MacLeod  <amacleod@cygnus.com>

        * except.h (struct handler_info): Add handler_number field.
        * except.c (gen_exception_label): EH labels no longer need to be
        on the permanent obstack.
        (get_new_handler): Set the label number field.
        (output_exception_table_entry): Regenerate handler label reference 
        from the label number field.
        (init_eh): Remove a blank line.
        * integrate.c (get_label_from_map): Labels no longer need to be
        on the permanent obstack.

Tue Dec  8 22:04:33 1998  Jim Wilson  <wilson@cygnus.com>

        * i960/i960.h (CONST_COSTS, case CONST_INT): Accept power2_operand
        only when OUTER_CODE is SET.

Tue Dec  8 22:47:15 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * loop.c (strength_reduce): If scan_start points to the loop exit
        test, be wary of subversive use of gotos inside expression statements.
        Don't set maybe_multiple for a backward jump that does not
        include the label under consideration into its range.
        * unroll.c (biv_total_increment): Make use of maybe_multiple field.

Tue Dec  8 22:33:18 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * explow.c (plus_constant_wide): Don't immediately return with
        result of recursive call.

Tue Dec  8 15:32:56 EST 1998  Andrew MacLeod  <amacleod@cygnus.com>

        * eh-common.h (struct eh_context): Add table_index for rethrows.

        * rtl.h (enum reg_note): Add REG_EH_REGION and REG_EH_RETHROW reg notes.
        (SYMBOL_REF_NEED_ADJUST): New flag indicating symbol needs to be
        processed when inlined or unrolled (ie duplicated in some way).

        * rtl.c (reg_note_name): Add strings for new reg_note enums.

        * expr.h (rethrow_libfunc): New library decl.

        * optabs.c (rethrow_libfunc): Initialize.

        * except.h (struct eh_entry): Add new field 'rethrow_label'.
        (new_eh_region_entry): No longer exported from except.c.
        (duplicate_handlers): Renamed to duplicate_eh_handlers and 
        different prototype.
        (rethrow_symbol_map, rethrow_used): New exported functions.
        (eh_region_from_symbol): New exported function.

        * except.c (create_rethrow_ref): New function to create a single
        SYMBOL_REF for a rethrow region.  
        (push_eh_entry): Initialize a rethrow ref.
        (func_eh_entry): Add a rethrow_label field.
        (new_eh_region_entry): Make static, and initialize the rethrow entry.
        (duplicate_eh_handlers): Create a new region, and remap labels/symbols.
        (eh_region_from_symbol): Find an EH region based on its rethrow symbol.
        (rethrow_symbol_map): Given a label map, maps a rethrow symbol for 
        a region into an appropriate new symbol.
        (rethrow_used): Indicate whether a rethrow symbol has been referenced.
        (expand_eh_region_end): Don't issue jump around code for new-exceptions.
        (end_catch_handler): Emit a barrier for new-exceptions since 
        control can never drop through the end of a catch block.
        (expand_end_all_catch): new-exceptions never fall through a catch 
        block.
        (expand_rethrow): use __rethrow routine for new exceptions.
        (output_exception_table_entry): Generate rethrow labels, if needed.
        (output_exception_table): Generate start and end rethrow labels.
        (init_eh): Create rethrow symbols for beginning and end of table.
        (scan_region): Don't eliminate EH regions which are the targets of
        rethrows.

        * flow.c (make_edges): Add different edges for rethrow calls, 
        identified by having the REG_EH_RETHROW reg label.
        (delete_unreachable_blocks): Don't delete regions markers which are 
        the target of a rethrow.

        * integrate.c (save_for_inline_eh_labelmap): New callback routine to 
        allow save_for_inline_copying to call duplicate_eh_handlers.
        (save_for_inline_copying): Call duplicate_eh_handlers instead of
        exposing internal details of exception regions.
        (copy_for_inline): Check if SYMBOL_REFs need adjustment.
        (expand_inline_function_eh_labelmap):  New callback routine to 
        allow expand_inline_function to call duplicate_eh_handlers.
        (expand_inline_function): Call duplicate_eh_handlers instead of
        exposing internal details of exception regions.
        (copy_rtx_and_substitute): Adjust SYMBOL_REFS if SYMBOL_REF_NEED_ADJUST
        flag is set.

        * libgcc2.c (find_exception_handler): Generalize to enable it to
        pick up processing where it left off last time for a rethrow.
        (__unwinding_cleanup): New function. debug hook which is called before
        unwinding when __throw finds there is nothing but cleanups left.
        (throw_helper): Common parts of __throw extracted out for reuse.
        (__throw): Common parts moved to throw_helper.
        (__rethrow): New function for performing rethrows.

Tue Dec  8 13:11:04 1998  Jeffrey A Law  (law@cygnus.com)

        * reload1.c (current_function_decl): Tweak declaration.

Tue Dec  8 10:23:52 1998  Richard Henderson  <rth@cygnus.com>

        * c-decl.c (flag_isoc9x): Default off.
        (c_decode_option): Kill -std=gnu, add -std=gnu89 and -std=gnu9x.
        * cccp.c (print_help, main): Likewise.
        * gcc.c (default_compilers): Update for -std=gnu*.

Tue Dec  8 01:14:46 1998  Jeffrey A Law  (law@cygnus.com)

        * Makefile.in (DEMANGLE_H): Change location to shared demangle.h.
        * demangle.h: Deleted.

        * reload1.c (current_function_decl): Declare.

Tue Dec  8 11:58:51 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * cpplib.c (convert_string): Use `0x00ff', not `0x00ffU'.

Tue Dec  8 09:28:36 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * dbxout.c: If USG is defined use gstab.h, even if HAVE_STAB_H is set.

1998-12-08  Ulrich Drepper  <drepper@cygnus.com>

        * configure.in: Test for availability of putc_unlocked, fputc_unlocked,
        and fputs_unlocked.
        * configure: Rebuilt.
        * system.h: If the *_unlocked functions are available use them
        instead of the locked counterparts by defining macros.
        * config.in: Regenerated.

Tue Dec  8 00:34:05 1998  Mike Stump  <mrs@wrs.com>

        * i386/bsd.h (ASM_FILE_START): Don't use dump_base_name, it is
        wrong and should only be used for dump related things, not
        debugging information, instead main_input_filename should be used.
        Also, reuse output_file_directive if possible.
        * i386/aix386ng.h (ASM_FILE_START): Likewise.
        * i386/isc.h (ASM_FILE_START): Likewise.
        * i386/win-nt.h (ASM_FILE_START): Likewise.
        * i386/sun386.h (ASM_FILE_START): Likewise.

Mon Dec  7 23:56:28 1998   Robert Lipe  <robertl@dgii.com>

        * configure.in (mips*-*-linux*): Handle big and little endian
        systems.
        * configure: Rebuilt.

Mon Dec  7 23:14:51 1998  Mike Stump <mrs@wrs.com>

        * emit-rtl.c: Fix typo.

Mon Dec  7 23:07:38 1998  Nathan Sidwell  <nathan@acm.org>

        * reload1.c (eliminate_regs): Don't do anything, if we're not
        generating code.

Mon Dec  7 15:27:09 1998  DJ Delorie  <dj@cygnus.com>

        * mips/mips.h (ENCODE_SECTION_INFO): Handle TARGET_EMBEDDED_DATA.
        Add comment.
        * mips/mips.c (mips_select_section): Add comment.

Mon Dec  7 17:55:06 1998  Mike Stump  <mrs@wrs.com>

        * cccp.c (ignore_escape_flag): Add support for \ as `natural'
        characters in file names in #line to be consistent with #include
        handling.  We support escape prcessing in the # 1 "..." version of
        the command.  See also support in cp/lex.c.
        (handle_directive): Likewise.
        (do_line): Likewise.
        
1998-12-07  Zack Weinberg  <zack@rabi.phys.columbia.edu>

        * cpplib.c (initialize_char_syntax): Use ISALPHA and ISALNUM
          so it'll work on non-ASCII platforms.  Always consider $ an
          identifier character.  Take no arguments.
          (cpp_reader_init): Call initialize_char_syntax with no
          arguments.
          (cpp_start_read): Don't call initialize_char_syntax again.
          Clear is_idchar['$'] and is_idstart['$'] if not
          opts->dollars_in_ident.

        * cpplib.h (struct cpp_reader): Replace void *data element by
          cpp_options *opts.  Rearrange elements to make gdb printout
          less annoying (put buffer stack at end).
          (CPP_OPTIONS): Get rid of now-unnecessary cast.

        * cppmain.c: s/data/opts/ when initializing cpp_reader
          structure.
        * c-decl.c: Likewise.
        * objc/objc-act.c: Likewise.
        * fix-header.c: Likewise.

1998-12-07  Zack Weinberg  <zack@rabi.phys.columbia.edu>

        * cpplib.h (struct cpp_buffer): Replace dir and dlen members
        with a struct file_name_list pointer.
        (struct cpp_reader): Add pointer to chain of `actual
        directory' include searchpath entries.
        (struct file_name_list): Add *alloc pointer for the sake of
        the actual-directory chain.

        Move definition of HOST_WIDE_INT here.
        (cpp_parse_escape): Change prototype to match changes in
        cppexp.c.

        * cppfiles.c (actual_directory): New function.
        (finclude): Use it to initialize the buffer's actual_dir
        entry.
        (find_include_file): We don't need to fix up max_include_len
        here.

        * cpplib.c (do_include): Don't allocate a file_name_list on
        the fly for current directory "" includes, use the one that's
        been preallocated in pfile->buffer->actual_dir.  Hoist out
        duplicate code from the search_start selection logic.
        (cpp_reader_init): Initialize pfile->actual_dirs.

        Remove definition of HOST_WIDE_INT.  Change calls
        to cpp_parse_escape to match changes in cppexp.c (note
        hardcoded MASK, which is safe since this is the source
        character set).

        * cppexp.c: Bring over changes to cpp_parse_escape from cccp.c
        to handle wide character constants in #if directives.  The
        function now returns a HOST_WIDE_INT, and takes a third
        argument which is a binary mask for all legal values (0x00ff
        for 8-bit `char', 0xffff for 16-bit `wchar_t', etc.)  Define
        MAX_CHAR_TYPE_MASK and MAX_WCHAR_TYPE_MASK.  Change callers of
        cpp_parse_escape to match.  [Fixes c-torture/execute/widechar-1.c]

Mon Dec  7 15:38:25 1998  Dave Brolley  <brolley@cygnus.com>

        * gcc.c (default_compilers): Fix typo in USE_CPPLIB spec for cc1.

Mon Dec  7 15:38:25 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * c-aux-info.c (concat): Wrap function definition in !USE_CPPLIB.
        * cppalloc.c: Move function `xcalloc' from cpplib.c to here.
        * cpplib.c: Move function `xcalloc' from here to cppalloc.c.

Mon Dec  7 11:30:49 1998  Nick Clifton  <nickc@cygnus.com>

        * final.c (output_asm_name): Use tabs to seperate comments from
        assembly text.
        
        Include instruction lengths (if defined) in output.

Mon Dec  7 10:53:38 1998  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * loop.c (check_dbra_loop): Fix initial_value and initial_equiv_value
        in the loop_info structure.
        
Mon Dec  7 11:04:40 1998  Catherine Moore  <clm@cygnus.com>
 
        * configure.in:  (arm*-*-ecos-elf):  New target.
        * configure:  Regenerated.
        * config/arm/elf.h (ASM_WEAKEN_LABEL):  Define.
        * config/arm/ecos-elf.h:  New file.
        * config/arm/unknown-elf.h (TARGET_VERSION):  Check
        for redefinition.
 
Mon Dec  7 16:15:51 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * sh.c (output_far_jump): Emit braf only for TARGET_SH2.

Sun Dec 6 04:19:45 PST 1998 Jeff Law  (law@cygnus.com)

        * version.c: Bump for snapshot.

Sun Dec  6 05:16:16 1998  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * loop.c (check_dbra_loop): New argument loop_info.  Update fields
        as needed.

Sun Dec 6 03:40:13 PST 1998 Jeff Law  (law@cygnus.com)

        * version.c: Bump for snapshot.

Sun Dec  6 07:49:29 1998  Alexandre Oliva  <oliva@dcc.unicamp.br>

        * gcc.texi (Bug Reporting): 40Kb is a soft limit, larger
        compressed reports are ok and preferred over URLs

Sun Dec  6 07:45:33 1998  Alexandre Oliva  <oliva@dcc.unicamp.br>

        * invoke.texi (Warning Options): Soften the tone of -pedantic

Sun Dec  6 00:20:44 1998  H.J. Lu  (hjl@gnu.org)

        * print-rtl.c (print_rtx): Add prototype.

        * unroll.c (iteration_info): Make it static.

Sun Dec  6 01:19:46 1998  Richard Henderson  <rth@cygnus.com>

        * alias.c (memrefs_conflict_p): A second ANDed address
        disables the aligned address optimization.

Sat Dec  5 18:48:25 1998  Richard Henderson  <rth@cygnus.com>

        * alpha.c (alpha_emit_set_const_1): Fix parenthesis error
        in -c << n case.

Sat Dec  5 15:14:52 1998  Jason Merrill  <jason@yorick.cygnus.com>

        * i960.h (BOOL_TYPE_SIZE): Define.

Sun Dec  6 00:28:16 1998  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.c (valid_parallel_load_store): Flog functionality
        from old valid_parallel_operands_4.
        (valid_parallel_operands_4): Check that operands for 4 operand
        parallel insns are valid, excluding load/store insns.
        * config/c4x/c4x.h (valid_parallel_load_store): Add prototype.
        * config/c4x/c4x.md (*movqf_parallel, *movqi_parallel): Use
        valid_parallel_load_store instead of valid_parallel_operands_4.
        (*absqf2_movqf_clobber, *floatqiqf2_movqf_clobber, 
        *negqf2_movqf_clobber, *absqi2_movqi_clobber,
        *fixqfqi2_movqi_clobber, *negqi2_movqi_clobber,
        *notqi_movqi_clobber): Use valid_parallel_operands_4.
        (*subqf3_movqf_clobber, *ashlqi3_movqi_clobber,
        *ashrqi3_movqi_clobber, *lshrqi3_movqi_clobber,
        *subqi3_movqi_clobber): Use valid_parallel_operands_5.

Sat Dec  5 23:52:01 1998  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.c (iteration_info): Delete extern.

Fri Dec  4 20:15:57 1998  Bernd Schmidt  <crux@pool.informatik.rwth-aachen.de>

        * tm.texi (SMALL_REGISTER_CLASSES): Make description match reality.

        * final.c (cleanup_subreg_operands): Delete some unused code.

        * recog.h (MAX_RECOG_ALTERNATIVES): New macro.
        (struct insn_alternative): New structure definition.
        (recog_op_alt): Declare variable.
        (preprocess_constraints): Declare function.
        * recog.c (recog_op_alt): New variable.
        (extract_insn): Verify number of alternatives is in range.
        (preprocess_constraints): New function.
        * reg-stack.c: Include recog.h.
        (constrain_asm_operands): Delete.
        (get_asm_operand_lengths): Delete.
        (get_asm_operand_n_inputs): New function.
        (record_asm_reg_life): Delete OPERANDS, CONSTRAINTS, N_INPUTS and
        N_OUTPUTS args.  All callers changed.
        Compute number of inputs and outputs here by calling
        get_asm_operand_n_inputs.
        Instead of constrain_asm_operands, call extract_insn,
        constrain_operands and preprocess_constaints.  Use information
        computed by these functions throughout.
        (record_reg_life): Delete code that is unused due to changes in
        record_asm_reg_life.
        (subst_asm_stack_regs): Delete OPERANDS, OPERAND_LOC, CONSTRAINTS,
        N_INPUTS and N_OUTPUTS args.  All callers changed.
        Similar changes as in record_asm_reg_life.
        (subst_stack_regs): Move n_operands declaration into the if statement
        where it's used.
        Delete code that is unused due to changes in subst_asm_stack_regs.
        * stmt.c (expand_asm_operands): Verify number of alternatives is in
        range.
        * Makefile.in (reg-stack.o): Depend on recog.h.

Fri Dec  4 02:23:24 1998  Jeffrey A Law  (law@cygnus.com)

        * except.c (set_exception_version_code): Argument is an "int".

Fri Dec  4 01:29:28 1998  Jeffrey A Law  (law@cygnus.com)

        * configure.in (hppa2*-*-*): Handle like hppa1.1-*-* for now.
        * configure: Rebuilt.

Fri Dec  4 01:29:28 1998  Robert Lipe  <robertl@dgii.com>

        * configure.in (mipsel-*-linux*): New target.
        * mips/linux.h: New file, based on other Linux targets.

Thu Dec  3 11:19:50 1998  Mike Stump  <mrs@wrs.com>

        * gthr-vxworks.h (__ehdtor): Fix memory leak.  The delete hook
        runs in the context of the deleter, not the deletee, so we must
        use taskVarGet to find the correct memory to free.
        (__gthread_key_create): Initialize the task
        variable subsystem so that the task variable is still active when
        the delete hook is run.

1998-12-03  Joseph S. Myers  <jsm28@cam.ac.uk>

        * pdp11.h: Use optimize_size for space optimizations.
        * pdp11.c: Likewise.
        * pdp11.md: Likewise.

        * pdp11.h (TARGET_40_PLUS): Fix typo.

Thu Dec  3 11:48:32 1998  Jeffrey A Law  (law@cygnus.com)

        * local-alloc.c (block_alloc): Slightly retune heuristic to widen 
        qty lifetimes.

Thu Dec  3 22:30:18 1998  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * alias.c (addr_side_effect_eval): New function.
        (memrefs_conflict_p): Use it.
        * rtl.h (addr_side_effect_eval): Prototype it.

1998-12-02  Joseph S. Myers  <jsm28@cam.ac.uk>

        * pdp11.md (extendsfdf2): Fix mode mismatch in SET.

Wed Dec  2 11:23:07 1998  Jim Wilson  <wilson@cygnus.com>

        * reload.c (find_reloads): When force const to memory, put result
        in substed_operand not *recog_operand_loc.

1998-12-02  Ulrich Drepper  <drepper@cygnus.com>

        * c-lex.c: Fix indentation from last patch.
        Remove trailing whitespace.
        * real.c: Likewise.

Wed Dec  2 10:11:12 1998  Jeffrey A Law  (law@cygnus.com)

        * flow.c (delete_block): Call set_last_insn after we have reset
        NEXT_INSN (kept_tail).

Wed Dec  2 00:47:31 1998  Jeffrey A Law  (law@cygnus.com)

        * mips.md (trap_if): Use "$0" for the value zero.

Tue Dec  1 20:49:49 1998  Ulrich Drepper  <drepper@cygnus.com>
                          Stephen L Moshier  <moshier@world.std.com>
                          Richard Henderson  <rth@cygnus.com>

        * c-common.c (declare_function_name): Declare predefinied variable
        `__func__'.

        * c-decl.c (flag_isoc9x): Set to 1 by default.
        (c_decode_option): Handle -std= option.  Remove -flang-isoc9x.
        (grokdeclarator): Always emit warning about implicit int for ISO C 9x.

        * c-parse.in: Allow constructors in ISO C 9x.
        Rewrite designator list handling.
        Allow [*] parameters.
        Don't warn about comma at end of enum definition for ISO C 9x.

        * cccp.c (c9x): New variable.
        (rest_extension): New variable.
        (print_help): Document new -std= option.
        (main): Recognize -std= option.  Set c9x appropriately.
        (create_definition): Recognize ISO C 9x vararg macros.

        * gcc.c (default_compilers): Adjust specs for -std options.
        (option_map): Add --std.
        (display_help): Document -std.

        * toplev.c (documented_lang_options): Add -std and remove
        -flang-isoc9x.
        
        * c-lex.c (yylex): Recognize hex FP constants and call REAL_VALUE_ATOF
        or REAL_VALUE_HTOF based on base of the constants.
        * fold-const.c (real_hex_to_f): New function.  Replacement function
        for hex FP conversion if REAL_ARITHMETIC is not defined.
        * real.c (asctoeg): Add handling of hex FP constants.
        * real.h: Define REAL_VALUE_HTOF if necessary using ereal_atof or
        real_hex_to_f.

Tue Dec  1 16:45:49 1998  Stan Cox  <scox@cygnus.com>

        * mips.md (divmodsi4*, divmoddi4*, udivmodsi4*, udivmoddi4): Add
        -mcheck-range-division/-mcheck-zero-division checking.  Avoid as macro
        expansion.  Use hi/lo as destination register.
        (div_trap): New.
        (divsi3*, divdi3*, modsi3*, moddi3*, udivsi3*, udivdi3*, umodsi3*,
        umoddi3*): Add -mcheck-range-division/-mcheck-zero-division checking.
        Avoid as macro expansion.  Use hi/lo as destination register. 

        * mips.h (MASK_CHECK_RANGE_DIV): New.
        (MASK_NO_CHECK_ZERO_DIV): New.
        (ELIMINABLE_REGS): Added GP_REG_FIRST + 31.
        (CAN_ELIMINATE, INITIAL_ELIMINATION_OFFSET): Allow for getting
        return address for leaf functions out of r31 to support
        builtin_return_address. 
        
Tue Dec  1 15:03:30 1998  Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

        * jump.c (jump_optimize): Call regs_set_between_p with PREV_INSN(x),
        NEXT_INSN(x) to check insn x.
        
Tue Dec  1 15:20:44 1998  Jeffrey A Law  (law@cygnus.com)

        * flow.c (delete_block): Call set_last_insn if we end up deleting the
        last insn in the rtl chain.

        * reload1.c (reload): Do not set reload_completed or split insns
        here.  Instead...
        * toplev.c (rest_of_compilation): Set reload_completed after
        reload returns.  Split insns after reload_cse has run.

Tue Dec  1 11:55:04 1998  Richard Henderson  <rth@cygnus.com>

        * final.c (final_scan_insn): Abort if block_depth falls below 0.

Tue Dec  1 10:23:16 1998  Nick Clifton  <nickc@cygnus.com>

        * config/arm/t-arm-elf (LIBGCC2_CFLAGS): Define inhibit_libc.

Tue Dec  1 10:22:18 1998  Nick Clifton  <nickc@cygnus.com>

        * config/arm/unknown-elf.h (ASM_OUTPUT_DWARF2_ADDR_CONST): Remove
        use of user-label_prefix.

Tue Dec  1 17:58:26 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * reload1.c (emit_reload_insns): Clear spill_reg_store
        when doing a new non-inherited reload from the same pseudo.

        * local-alloc.c (function_invariant_p): New function.
        (update_equiv_regs): Use function_invariant_p instead of CONSTANT_P
        to decide if an equivalence should be recorded.
        * reload1.c (num_eliminable_invariants): New static variable.
        (reload): Set it.  Use function_invariant_p instead of CONSTANT_P
        to decide if an equivalence should be recorded.
        Unshare PLUS.
        (calculate_needs_all_insns): Skip insns that only set an equivalence.
        Take num_eliminable_invariants into account when deciding
        if register elimination should be done.
        (reload_as_needed): Take num_eliminable_invariants into account
        when deciding if register elimination should be done.
        (eliminate_regs): Handle non-constant reg_equiv_constant.
        * rtl.h (function_invariant_p): Declare.

Mon Nov 30 02:00:08 PST 1998 Jeff Law  (law@cygnus.com)

        * version.c: Bump for snapshot.

Mon Nov 30 00:42:59 PST 1998 Jeff Law  (law@cygnus.com)

        * version.c: Bump for snapshot.

Sun Nov 29 22:59:40 1998  Jason Merrill  <jason@yorick.cygnus.com>

        * except.c (add_new_handler): Complain about additional handlers
        after one that catches everything.

Sat Nov 28 10:56:32 1998  Jeffrey A Law  (law@cygnus.com)

        * configure.in (alpha*-*-netbsd): Fix typo.
        * configure: Rebuilt.

Fri Nov 27 12:28:56 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * system.h: Include libiberty.h.

        * c-aux-info.c: Remove prototypes for concat/concat3.  Change
        function `concat' from fixed parameters to variable parameters,
        as is done in libiberty.  All callers of concat/concat3
        changed to use the new `concat' with variable args.

        * cccp.c: Remove things made redundant by libiberty.h and/or
        conform to libiberty standards.
        * cexp.y: Likewise.
        * collect2.c: Likewise.
        * config/1750a/1750a.h: Likewise.
        * cppalloc.c: Likewise.
        * cppexp.c: Likewise.
        * cppfiles.c: Likewise.
        * cpphash.c: Likewise.
        * cpplib.c: Likewise.
        * dyn-string.c: Likewise.
        * fix-header.c: Likewise.
        * gcc.c: Likewise.
        * gcov.c: Likewise.
        * genattr.c: Likewise.
        * genattrtab.c: Likewise.
        * gencheck.c: Likewise.
        * gencodes.c: Likewise.
        * genconfig.c: Likewise.
        * genemit.c: Likewise.
        * genextract.c: Likewise.
        * genflags.c: Likewise.
        * gengenrtl.c: Likewise.
        * genopinit.c: Likewise.
        * genoutput.c: Likewise.
        * genpeep.c: Likewise.
        * genrecog.c: Likewise.
        * getpwd.c: Likewise.
        * halfpic.c: Likewise.
        * hash.c: Likewise.
        * mips-tdump.c: Likewise.  Wrap malloc/realloc/calloc prototypes
        in NEED_DECLARATION_* macros.

        * mips-tfile.c: Remove things made redundant by libiberty.h and/or
        conform to libiberty standards.
        (fatal): Fix const-ification of variable `format' in
        !ANSI_PROTOTYPES case.

        * prefix.c: Remove things made redundant by libiberty.h and/or
        conform to libiberty standards.

        * print-rtl.c: Rename variable `spaces' to `xspaces' to avoid
        conflicting with function `spaces' from libiberty.

        * profile.c: Remove things made redundant by libiberty.h and/or
        conform to libiberty standards.
        * protoize.c: Likewise.
        * rtl.h: Likewise.
        * scan.h: Likewise.
        * tlink.c: Likewise.
        * toplev.c: Likewise.
        * toplev.h: Likewise.
        * tree.h: Likewise.

Thu Nov 26 08:38:06 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * cppfiles.c (simplify_pathname): Un-ANSI-fy function definition.

Thu Nov 26 23:45:37 1998  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * README.C4X: Updated URLs.
        * config/c4x/c4x.c (c4x_address_conflict): Fix typo.
        (valid_parallel_operands_5): Remove unused variable.

Thu Nov 26 23:40:03 1998  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.h (TARGET_DEFAULT): Fix typo.

1998-11-26  Manfred Hollstein  <manfred@s-direktnet.de>

        * Makefile.in (CONFIG_LANGUAGES): New macro taking all languages
        which can be configured.
        (LANGUAGES): Use $(CONFIG_LANGUAGES) instead of @all_languages@
        (Makefile): Pass actual LANGUAGES through the environment when
        re-configuring.
        (cstamp-h): Likewise.
        (config.status): Likewise.

        * configure.in (enable_languages): Add new configuration parameter
        "--enable-languages=lang1,lang2,...".
        (${srcdir}/*/config-lang.in): Change handling to configure only
        those directories, that the user might have enabled; default to
        "all" existing languages.
        * configure: Regenerate.

Thu Nov 26 00:19:19 1998  Richard Henderson  <rth@cygnus.com>

        * rtlanal.c (regs_set_between_p): New function.
        * rtl.h (regs_set_between_p): Prototype it.
        * jump.c (jump_optimize): Use it instead of modified_between_p
        in the Sep 2 change.

Wed Nov 25 23:32:02 1998  Ian Dall  <Ian.Dall@dsto.defence.gov.au>
                          Matthias Pfaller  <leo@dachau.marco.de>

        * invoke.texi (Option Summary, NS32K Options): add description
        of NS32K specific options.

        * ns32k.md (tstdf, cmpdf, movdf, truncdfsf2, fixdfqi2, fixdfhi2,
        fixdfsi2, fixunsdfqi2, fixunsdfhi2, fixunsdfsi2, fix_truncdfqi2,
        fix_truncdfhi2, fix_truncdfsi2, adddf3, subdf3, muldf3, divdf3,
        negdf2, absdf2): Use l instead of f since the double class and
        float class are no longer the same.
        (cmpsi, truncsiqi2, truncsihi2, addsi3, subsi3, mulsi3, umulsidi3,
        divsi3, modsi3, andsi3, iorsi3, xorsi3, negsi2, one_cmplsi2,
        ashlsi3, ashlhi3, ashlqi3, rotlsi3, rotlhi3, rotlqi3, abssi2,...):
        use "g" instead of "rmn" since LEGITIMATE_PIC_OPERAND has been
        fixed.
        (cmpsi, cmphi, cmpqi): use general_operand instead of
        non_immediate_operand. Removes erroneous assumption that can't
        compare constants.
        (movsf, movsi, movhi, movqi,...): New register numbering scheme.
        (movsi, addsi3): Use NS32K_DISPLACEMENT_P instead of hard coded
        constants.
        (movstrsi, movstrsi1, movstrsi2): completely new block move
        scheme.
        (...): Patterns to exploit multiply-add instructions.
        (udivmodsi4, udivmodsi_internal4, udivmodhi4,
        udivmoddihi4_internal, udivmodqi4, udivmoddiqi4_internal): new
        patterns to exploit extended divide insns.
        (udivsi3, udivhi3, udivqi3): remove since superceded by udivmodsi
        etc patterns.

        * ns32k.h (FUNCTION_VALUE, LIBCALL_VALUE): Use f0 for complex
        float return values as well as simple scalar floats.
        (TARGET_32381, TARGET_MULT_ADD, TARGET_SWITCHES):
        support new flag to denote 32381 fpu.
        (OVERRIDE_OPTIONS): 32381 is a strict superset of 32081.
        (CONDITIONAL_REGISTER_USAGE): disable extra 32381 registers if not
        compling for 32381.
        (FIRST_PSEUDO_REGISTER, FIXED_REGISTERS, CALL_USED_REGISTERS,
        REGISTER_NAMES, ADDITIONAL_REGISTER_NAMES, OUTPUT_REGISTER_NAMES,
        REG_ALLOC_ORDER, DBX_REGISTER_NUMBER, R0_REGNUM, F0_REGNUM,
        L1_REGNUM, STACK_POINTER_REGNUM, FRAME_POINTER_REGNUM,
        LONG_FP_REGS_P, ARG_POINTER_REGNUM, reg_class, REG_CLASS_NAMES,
        REG_CLASS_CONTENTS, SUBSET_P,REGNO_REG_CLASS,
        REG_CLASS_FROM_LETTER, FUNCTION_PROLOGUE, FUNCTION_EPILOGUE,
        REGNO_OK_FOR_INDEX_P, FP_REG_P, REG_OK_FOR_INDEX_P,
        REG_OK_FOR_BASE_P, MEM_REG): new register scheme to include 32381
        fpu registers and special register classes for new 32381
        instructions dotf and polyf.
        (MODES_TIEABLE_P): Allow all integer modes, notably DI and SI, to
        be tieable.
        (INCOMING_RETURN_ADDR_RTX, RETURN_ADDR_RTX,
        INCOMING_FRAME_SP_OFFSET): New macros in case DWARF support is
        required.
        (SMALL_REGISTER_CLASSES): Make dependant on -mmult-add option.
        (MOVE_RATIO): Set to zero because of smart movstrsi implimentation.
        (REGISTER_MOVE_COST): move code to register_move_cost function for
        ease of coding and debugging.
        (CLASS_LIKELY_SPILLED_P): Under new register scheme class
        LONG_FLOAT_REGO is likely spilled but not caught by default
        definition.
        (CONSTANT_ADDRESS_P, CONSTANT_ADDRESS_NO_LABEL_P): use macro
        instead of hard coded numbers in range check.
        (ASM_OUTPUT_LABELREF_AS_INT): delete since unused.
        (...): Add prototypes for functions in ns32k.c but disable because
        of problems when ns32k.h is included in machine independant files.
        
        * ns32k.c: include "system.h", "tree.h", "expr.h", "flags.h".
        (ns32k_reg_class_contents, regcass_map, ns32k_out_reg_names,
        hard_regno_mode_ok, secondary_reload_class,
        print_operand, print_operand_address): new register scheme to
        include 32381 fpu registers and special register classes for new
        32381 instructions dotf and polyf.
        (gen_indexed_expr): Make static to keep namespace clean.
        (check_reg): remove since never called.
        (move_tail, expand_block_move): helper functions for "movstrsi"
        block move insn.
        (register_move_cost): Helper function for REGISTER_MOVE_COST macro.
        Increase cost of moves which go via memory.
        * netbsd.h (TARGET_DEFAULT): Set (new) 32381 fpu flag.
        (CPP_PREDEFINES): nolonger predefine "unix".

        * ns32k.md (movsi, movsi, adddi3, subdi3, subsi3, subhi3, subqi3,...):
        Remove erroneous %$. print_operand() can work out from the rtx is
        an immediate prefix is required.

        * ns32k.h (RETURN_POPS_ARGS, VALID_MACHINE_DECL_ATTRIBUTE,
        VALID_MACHINE_TYPE_ATTRIBUTE, COMP_TYPE_ATTRIBUTES,
        SET_DEFAULT_TYPE_ATTRIBUTES): Support for -mrtd calling
        convention.
        (LEGITIMATE_PIC_OPERAND_P, SYMBOLIC_CONST): Correct handling of
        pic operands.

        * ns32k.c (symbolic_reference_mentioned_p, print_operand):
        Correct handling of pic operands.
        (ns32k_valid_decl_attribute_p, ns32k_valid_type_attribute_p,
        ns32k_comp_type_attributes, ns32k_return_pops_args): Support for
        -mrtd calling convention.

Wed Nov 25 23:42:20 1998  Tom Tromey  <tromey@cygnus.com>

        * gcc.c (option_map): Recognize --output-class-directory.

Thu Nov 26 18:26:21 1998  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * loop.h (precondition_loop_p): Added new mode argument.
        * unroll.c (precondition_loop_p): Likewise.
        (approx_final_value): Function deleted and subsumed
        into loop_iterations.
        (loop_find_equiv_value): New function.
        (loop_iterations): Use loop_find_equiv_value to find increments
        too large to be immediate constants.  Also use it to find terms
        common to initial and final iteration values that can be removed.

Thu Nov 26 18:05:04 1998  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * loop.h (struct loop_info): Define new structure.
        (precondition_loop_p): Added prototype.
        (unroll_loop): Added new argument loop_info to prototype.
        (final_biv_value, final_giv_value): Added new argument n_iterations
        to prototype.
        * loop.c (strength_reduce): Declare new structure loop_iteration_info
        and new pointer loop_info.
        (loop_n_iterations): Replace global variable by element in 
        loop_info structure.
        (check_final_value): New argument n_iterations.
        (insert_bct): New argument loop_info.
        (loop_unroll_factor): Replace global array by element in 
        loop_info structure.
        (loop_optimize): Remove code to allocate and initialise 
        loop_unroll_factor_array.
        * unroll.c (precondition_loop_p):  No longer static since
        used by branch on count optimization.
        (precondition_loop_p, unroll_loop): New argument loop_info.
        (final_biv_value, final_giv_value, find_splittable_regs): New
        argument n_iterations.
        (loop_iteration_var, loop_initial_value, loop_increment, 
        loop_final_value, loop_comparison_code, loop_unroll_factor): 
        Replaced global variables by loop_info structure.
        (loop_unroll_factor): Replace global array by element in
        loop_info structure.

Thu Nov 26 17:49:29 1998  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * loop.c (check_dbra_loop): Update JUMP_LABEL field of jump insn
        when loop reversed.

        * unroll.c (precondition_loop_p): Return loop_initial_value
        for initial_value instead of loop_iteration_var.

Thu Nov 26 17:15:38 1998  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.md: Fix minor formatting problems.  Update docs.
        (*b, *b_rev, *b_noov, *b_noov_rev, *db, 
        decrement_and_branch_until_zero, rptb_end): Use c4x_output_cbranch
        to output the instruction sequences.
        (rpts): Delete.
        (rptb_top): Provide alternatives to use any register or memory
        for loop counter.
        (rptb_end):  Emit use of operands rather than assigning them
        explicitly to the RS and RE registers.

Thu Nov 26 16:37:59 1998  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.c (c4x_modified_between_p, c4x_mem_set_p,
        c4x_mem_set_p, c4x_mem_modified_between_p, c4x_insn_moveable_p,
        c4x_parallel_pack, c4x_parallel_find, c4x_update_info_reg,
        c4x_update_info_regs, c4x_copy_insn_after, c4x_copy_insns_after, 
        c4x_merge_notes, c4x_parallel_process, 
        c4x_combine_parallel_independent, c4x_combine_parallel_dependent,
        c4x_combine_parallel): Delete.

Thu Nov 26 15:16:05 1998  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.c: (c4x_override_options): For compatibility
        with old target options clear flag_branch_on_count_reg if
        -mno-rptb specified and set flag_argument_alias is -mno-aliases
        specified.
        (c4x_output_cbranch): Handle a sequence of insns rather than a
        single insn.
        (c4x_rptb_insert): Do not emit a RPTB insn if the RC register
        has not been allocated as the loop counter.
        (c4x_address_conflict): Do not allow two volatile memory references.
        (valid_parallel_operands_4, valid_parallel_operands_5,
        valid_parallel_operands_6): Reject pattern if the register destination
        of the first set is used as part of an address in the second set.

Thu Nov 26 14:56:32 1998  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.h (TARGET_DEFAULT): Add PARALEL_MPY_FLAG.
        (TARGET_SMALL_REG_CLASS): Set to 0 so that SMALL_REGISTER_CLASSES
        is no longer enabled if PARALLEL_MPY_FLAG set.
        (HARD_REGNO_CALL_CLOBBERED): Add parentheses to remove ambiguity.
        (REG_CLASS_CONTENTS): Add braces around initializers.
        (HAVE_MULTIPLE_PACK): Define.
        (ASM_OUTPUT_BYTE_FLOAT): Use %lf format specifier with 
        REAL_VALUE_TO_DECIMAL.
        (ASM_OUTPUT_SHORT_FLOAT): Use %lf format specifier with 
        REAL_VALUE_TO_DECIMAL.
        (ar0_reg_operand): Add prototype.
        (ar0_mem_operand): Likewise.
        (ar1_reg_operand): Likewise.
        (ar1_mem_operand): Likewise.
        (ar2_reg_operand): Likewise.
        (ar2_mem_operand): Likewise.
        (ar3_reg_operand): Likewise.
        (ar3_mem_operand): Likewise.
        (ar4_reg_operand): Likewise.
        (ar4_mem_operand): Likewise.
        (ar5_reg_operand): Likewise.
        (ar5_mem_operand): Likewise.
        (ar6_reg_operand): Likewise.
        (ar6_mem_operand): Likewise.
        (ar7_reg_operand): Likewise.
        (ar7_mem_operand): Likewise.
        (ir0_reg_operand): Likewise.
        (ir0_mem_operand): Likewise.
        (ir1_reg_operand): Likewise.
        (ir1_mem_operand): Likewise.
        (group1_reg_operand): Likewise.
        (group1_mem_operand): Likewise.
        (ir1_reg_operand): Likewise.
        (arx_reg_operand): Likewise.
        (not_rc_reg): Likewise.
        (not_modify_reg): Likewise.
        (c4x_group1_reg_operand): Remove prototype.
        (c4x_group1_mem_operand): Likewise.
        (c4x_arx_reg_operand): Likewise.

Wed Nov 25 19:02:55 1998  (Stephen L Moshier) <moshier@world.std.com>

        * emit-rtl.c (gen_lowpart_common): Remove earlier change.
        * real.c (make_nan): Make SIGN arg actually specify the sign bit.

Thu Nov 26 14:12:05 1998  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.md (addqi3): Emit addqi3_noclobber pattern
        during reload.

Wed Nov 25 22:05:28 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * config/sh/lib1funcs.asm (___udivsi3_i4): Don't switch to sz == 1
        unless FMOVD_WORKS is defined.

Wed Nov 25 20:11:04 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * regclass.c (init_reg_sets): Move code that calculates tables
        dependent on reg_class_contents from here...
        (init_reg_sets_1): To here.

Wed Nov 25 14:54:46 1998  Zack Weinberg  <zack@rabi.phys.columbia.edu>

        * cpplib.h: Delete struct import_file.  Add ihash element to
        struct cpp_buffer.  Delete dont_repeat_files and
        import_hash_table elements from cpp_reader; change
        all_include_files to a hash table.  Delete all foobar_include
        / last_foobar_include elements from struct cpp_options; put
        back four such: quote_include, bracket_include,
        system_include, after_include.  Redo struct file_name_list
        completely.  Add new structure type include_hash.  Add
        prototypes for merge_include_chains and include_hash.  Change
        prototypes for finclude, find_include_file, and
        append_include_chain to match changes below.

        * cppfiles.c (simplify_pathname, include_hash,
        remap_filename, merge_include_chains): New functions.
        (add_import, lookup_import, open_include_file): Removed.
        (INO_T_EQ): Define this (copied from cccp.c).
        (hack_vms_include_specification): Remove all calls and #if 0
        out the definition.  It was being called incorrectly and at
        the wrong times.  Until a VMSie can look at this, it's better
        to not pretend to support it.
        (append_include_chain): Change calling convention; now takes
        only one directory at a time, and sets up the data structure
        itself.
        (redundant_include_p): Rewritten - this is now used for all
        include redundancy, whether by #ifndef, #import, or #pragma
        once.  Looks up things in the include hash table.
        (file_cleanup): Decrement pfile->system_include_depth here if
        it's >0.
        (find_include_file): Calling convention changed; now passes
        around a struct include_hash instead of 3 separate parameters.
        Guts ripped out and replaced with new include_hash mechanism.
        (finclude): Calling convention changed as for
        find_include_file.  Error exits pulled out-of-line.  Reformat.
        (safe_read): Return a long, not an int.
        (deps_output): Don't recurse.

        * cpplib.c (is_system_include): Deleted.
        (path_include): Fix up call to append_include_chain.
        (do_include): Fix up calls to find_include_file and finclude.
        Clean up dependency output a bit.  Shorten obnoxiously lengthy
        #import warning message.  Don't decrement
        pfile->system_include_depth here.
        (do_pragma): Understand the include_hash structure.  Reformat.
        (do_endif): Correct handling of control macros.  Understand
        the include_hash.
        (cpp_start_read): Fix up calls to finclude.  Call
        merge_include_chains.
        (cpp_handle_option): Fix up calls to append_include_chain.
        Understand the four partial include chains.
        (cpp_finish): Add debugging code (#if 0-ed out) for the
        include_hash.
        (cpp_cleanup): Free the include_hash, not the import hash and
        the all_include and dont_repeat lists which no longer exist.

Wed Nov 25 11:26:19 1998  Jeffrey A Law  (law@cygnus.com)

        * toplev.c (no_new_pseudos): Define.
        (rest_of_compilation):  Set no_new_pseudos as needed.
        * emit-rtl.c (gen_reg_rtx): Abort if we try to create a new pseudo
        if no_new_pseudos is set.
        * rtl.h (no_new_pseudos): Declare it.
        * reload1.c (reload): Update comments.
        * md.texi: Corresponding changes.

Wed Nov 25 11:26:17 1998  Bernd Schmidt  <crux@pool.informatik.rwth-aachen.de>

        * reload1.c (reg_used_in_insn): Renamed from reg_used_by_pseudo.
        (choose_reload_regs): Rename it here as well.  When computing it,
        also merge in used hardregs.

1998-11-25 07:51 -0500  Zack Weinberg  <zack@rabi.phys.columbia.edu>

        * gcc.c: Split out Objective-C specs to...
        * objc/lang-specs.h: here. (New file.) Make the specs cpplib
        aware.

        * c-lex.c (init_parse): Always initialize the filename global.
        * objc/objc-act.c (lang_init): Always call check_newline at
        beginning of file.

Wed Nov 25 00:48:29 1998  Graham  <grahams@rcp.co.uk>

        * reload1.c (reload): Remove unused variable.
        (reload_reg_free_for_value_p): Add missing parameter definition.

        * jump.c (jump_optimize): Remove unused variable.

Wed Nov 25 00:07:11 1998  Jeffrey A Law  (law@cygnus.com)

        * Makefile.in (graph.o): Depend on $(RTL_H), not rtl.h.

        * cse.c (fold_rtx): Make autoincrement addressing mode tests be
        runtime selectable.
        * expr.c (move_by_pieces): Similarly.
        (move_by_pieces_1, clear_by_pieces, clear_by_pieces_1): Similarly.
        * flow.c (find_auto_inc): Similarly.
        (try_pre_increment): Similarly.
        * loop.c (strength_reduce): Similarly.
        * regclass.c (auto_inc_dec_reg_p): Similarly.
        * regmove.c (try_auto_increment): Similarly.
        (fixup_match_1): Similarly.
        * rtl.h (HAVE_PRE_INCREMENT): Define if not already defined.
        (HAVE_PRE_DECREMENT): Similarly.
        (HAVE_POST_INCREMENT, HAVE_POST_DECREMENT): Similarly.
        * Corresponding changes to all target header files.
        * tm.texi: Update docs for autoinc addressing modes.

Tue Nov 24 20:24:59 1998  Jim Wilson  <wilson@cygnus.com>

        * configure.in (m68020-*-elf*, m68k-*-elf*): New targets.
        * configure: Rebuild.
        * config/elfos.h: New file.
        * config/m68k/m68020-elf.h, config/m68k/m68kelf.h,
        config/m68k/t-m68kelf: New file.
        
Tue Nov 24 13:40:06 1998  Jeffrey A Law  (law@cygnus.com)

        * Makefile.in (HOST_AR): Define.
        (HOST_AR_FLAGS, HOST_RANLIB, HOST_RANLIB_TEST): Similarly.
        (libcpp.a): Use the host tools explicitly.
        (STAGESTUFF): Add libcpp.a.

Tue Nov 24 09:33:49 1998  Nick Clifton  <nickc@cygnus.com>

        * config/m32r/m32r.md (movstrsi_internal): Describe changes made
        to source and destination registers.

Mon Nov 23 20:28:02 1998  Mike Stump  <mrs@wrs.com>

        * libgcc2.c (top_elt): Remove top_elt, it isn't thread safe.
        The strategy we now use is to pre allocate the top_elt along
        with the EH context so that each thread has its own top_elt.
        This is necessary as the dynmanic cleanup chain is used on the
        top element of the stack and each thread MUST have its own.
        (eh_context_static): Likewise.
        (new_eh_context): Likewise.
        (__sjthrow): Likewise.

Mon Nov 23 20:25:03 1998  Jason Merrill  <jason@yorick.cygnus.com>

        * i386/linux.h (ASM_OUTPUT_MAX_SKIP_ALIGN): Wrap in do...while.
        * i386.md (prologue_get_pc): Remove unused variable.

Mon Nov 23 17:05:40 1998  Geoffrey Noer  <noer@cygnus.com>

        * i386/xm-cygwin.h: Rename cygwin_ path funcs back to cygwin32_.

Mon Nov 23 16:40:00 1998  Ulrich Drepper  <drepper@cygnus.com>

        * Makefile.in (OBJS): Add graph.o
        (graph.o): New dependency list.
        * flags.h: Declare dump_for_graph and define graph_dump_types type.
        * print-rtl.c (dump_for_graph): Define new variable.
        (print_rtx): Rewrite to allow use in graph dumping functions.
        * toplev.c: Declare print_rtl_graph_with_bb, clean_graph_dump_file,
        finish_graph_dump_file.
        Define graph_dump_format.
        (compile_file): If graph dumping is enabled also clear these files.
        Finish graph dump files.
        (rest_of_compilation): Also dump graph information if enabled.
        (main): Recognize -dv to enabled VCG based graph dumping.
        * graph.c: New file.  Graph dumping functions.

Mon Nov 23 16:39:04 1998  Richard Henderson  <rth@cygnus.com>

        * configure.in: Look for <sys/stat.h>.
        * system.h: Include it before substitute S_ISREG definitions.

Mon Nov 23 17:40:37 1998  Gavin Romig-Koch  <gavin@cygnus.com>

        * config/mips/abi.h: Use ABI_O64, duplicating ABI_32 usage.
        * config/mips/iris6.h: Same.
        * config/mips/mips.md: Same.
        * config/mips/mips.c: Same; also add "-mabi=o64" option.
        * config/mips/mips.h: Same; also define ABI_O64.

Mon Nov 23 17:02:27 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        *  configure.in: Use AC_PREREQ(2.12.1).

Mon Nov 23 10:16:38 1998  "Melissa O'Neill" <oneill@cs.sfu.ca>

        * cccp.c (S_ISREG, S_ISDIR): Delete defines.
        * cpplib.c, gcc.c: Likewise.
        * system.h (S_ISREG, S_ISDIR): Define if not already defined.

Mon Nov 23 09:53:44 1998  Richard Henderson  <rth@cygnus.com>

        * local-alloc.c (local_alloc): Use malloc not alloca for
        reg_qty, reg_offset, ref_next_in_qty.

Mon Nov 23 16:46:46 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * caller-save.c (insert_one_insn): Initialize the live_before and
        live_after register sets.

        Add SH4 support:

        * config/sh/lib1funcs.asm (___movstr_i4_even, ___movstr_i4_odd): Define.
        (___movstrSI12_i4, ___sdivsi3_i4, ___udivsi3_i4): Define.
        * sh.c (reg_class_from_letter, regno_reg_class): Add DF_REGS.
        (fp_reg_names, assembler_dialect): New variables.
        (print_operand_address): Handle SUBREGs.
        (print_operand): Added 'o' case.
        Don't use adj_offsettable_operand on PRE_DEC / POST_INC.
        Name of FP registers depends on mode.
        (expand_block_move): Emit different code for SH4 hardware.
        (prepare_scc_operands): Use emit_sf_insn / emit_df_insn as appropriate.
        (from_compare): Likewise.
        (add_constant): New argument last_value.  Changed all callers.
        (find_barrier): Don't try HImode load for FPUL_REG.
        (machine_dependent_reorg): Likewise.
        (sfunc_uses_reg): A CLOBBER cannot be the address register use.
        (gen_far_branch): Emit a barrier after the new jump.
        (barrier_align): Don't trust instruction lengths before
        fixing up pcloads.
        (machine_dependent_reorg): Add support for FIRST_XD_REG .. LAST_XD_REG.
        Use auto-inc addressing for fp registers if doubles need to
        be loaded in two steps.
        Set sh_flag_remove_dead_before_cse.
        (push): Support for TARGET_FMOVD.  Use gen_push_fpul for fpul.
        (pop): Support for TARGET_FMOVD.  Use gen_pop_fpul for fpul.
        (calc_live_regs): Support for TARGET_FMOVD.  Don't save FPSCR.
        Support for FIRST_XD_REG .. LAST_XD_REG.
        (sh_expand_prologue): Support for FIRST_XD_REG .. LAST_XD_REG.
        (sh_expand_epilogue): Likewise.
        (sh_builtin_saveregs): Use DFmode moves for fp regs on SH4.
        (initial_elimination_offset): Take TARGET_ALIGN_DOUBLE into account.
        (arith_reg_operand): FPUL_REG is OK for SH4.
        (fp_arith_reg_operand, fp_extended_operand) New functions.
        (tertiary_reload_operand, fpscr_operand): Likewise.
        (commutative_float_operator, noncommutative_float_operator): Likewise.
        (binary_float_operator, get_fpscr_rtx, emit_sf_insn): Likewise.
        (emit_df_insn, expand_sf_unop, expand_sf_binop): Likewise.
        (expand_df_unop, expand_df_binop, expand_fp_branch): Likewise.
        (emit_fpscr_use, mark_use, remove_dead_before_cse): Likewise.
        * sh.h (CPP_SPEC): Add support for -m4, m4-single, m4-single-only.
        (CONDITIONAL_REGISTER_USAGE): Likewise.
        (HARD_SH4_BIT, FPU_SINGLE_BIT, SH4_BIT, FMOVD_BIT): Define.
        (TARGET_CACHE32, TARGET_SUPERSCALAR, TARGET_HARWARD): Define.
        (TARGET_HARD_SH4, TARGET_FPU_SINGLE, TARGET_SH4, TARGET_FMOVD): Define.
        (target_flag): Add -m4, m4-single, m4-single-only, -mfmovd.
        (OPTIMIZATION_OPTIONS): If optimizing, set flag_omit_frame_pointer
        to -1 and sh_flag_remove_dead_before_cse to 1.
        (ASSEMBLER_DIALECT): Define to assembler_dialect.
        (assembler_dialect, fp_reg_names): Declare.
        (OVERRIDE_OPTIONS): Add code for TARGET_SH4.
        Hide names of registers that are not accessible.
        (CACHE_LOG): Take TARGET_CACHE32 into account.
        (LOOP_ALIGN): Take TARGET_HARWARD into account.
        (FIRST_XD_REG, LAST_XD_REG, FPSCR_REG): Define.
        (FIRST_PSEUDO_REGISTER: Now 49.
        (FIXED_REGISTERS, CALL_USED_REGISTERS): Include values for registers.
        (HARD_REGNO_NREGS): Special treatment of FIRST_XD_REG .. LAST_XD_REG.
        (HARD_REGNO_MODE_OK): Update.
        (enum reg_class): Add DF_REGS and FPSCR_REGS.
        (REG_CLASS_NAMES, REG_CLASS_CONTENTS, REG_ALLOC_ORDER): Likewise.
        (SECONDARY_OUTPUT_RELOAD_CLASS, SECONDARY_INPUT_RELOAD_CLASS): Update.
        (CLASS_CANNOT_CHANGE_SIZE, DEBUG_REGISTER_NAMES): Define.
        (NPARM_REGS): Eight floating point parameter registers on SH4.
        (BASE_RETURN_VALUE_REG): SH4 also passes double values
        in floating point registers.
        (GET_SH_ARG_CLASS) Likewise.
        Complex float types are also returned in float registers.
        (BASE_ARG_REG): Complex float types are also passes in float registers.
        (FUNCTION_VALUE): Change mode like PROMOTE_MODE does.
        (LIBCALL_VALUE): Remove trailing semicolon.
        (ROUND_REG): Round when double precision value is passed in floating
        point register(s).
        (FUNCTION_ARG_ADVANCE): No change wanted for SH4 when things are
        passed on the stack.
        (FUNCTION_ARG): Little endian adjustment for SH4 SFmode.
        (FUNCTION_ARG_PARTIAL_NREGS): Zero for SH4.
        (TRAMPOLINE_ALIGNMENT): Take TARGET_HARWARD into account.
        (INITIALIZE_TRAMPOLINE): Emit ic_invalidate_line for TARGET_HARWARD.
        (MODE_DISP_OK_8): Not for SH4 DFmode.
        (GO_IF_LEGITIMATE_ADDRESS): No base reg + index reg for SH4 DFmode.
        Allow indexed addressing for PSImode after reload.
        (LEGITIMIZE_ADDRESS): Not for SH4 DFmode.
        (LEGITIMIZE_RELOAD_ADDRESS): Handle SH3E SFmode.
        Don't change SH4 DFmode nor PSImode RELOAD_FOR_INPUT_ADDRESS.
        (DOUBLE_TYPE_SIZE): 64 for SH4.
        (RTX_COSTS): Add PLUS case.
        Increae cost of ASHIFT, ASHIFTRT, LSHIFTRT case.
        (REGISTER_MOVE_COST): Add handling of R0_REGS, FPUL_REGS, T_REGS,
        MAC_REGS, PR_REGS, DF_REGS.
        (REGISTER_NAMES): Use fp_reg_names.
        (enum processor_type): Add PROCESSOR_SH4.
        (sh_flag_remove_dead_before_cse): Declare.
        (rtx_equal_function_value_matters, fpscr_rtx, get_fpscr_rtx): Declare.
        (PREDICATE_CODES): Add binary_float_operator,
        commutative_float_operator, fp_arith_reg_operand, fp_extended_operand,
        fpscr_operand, noncommutative_float_operator.
        (ADJUST_COST): Use different scale for TARGET_SUPERSCALAR.
        (SH_DYNAMIC_SHIFT_COST): Cheaper for SH4.
        * sh.md (attribute cpu): Add value sh4.
        (attrbutes fmovd, issues): Define.
        (attribute type): Add values dfp_arith, dfp_cmp, dfp_conv, dfdiv.
        (function units memory, int, mpy, fp): Make dependent on issue rate.
        (function units issue, single_issue, load_si, load): Define.
        (function units load_store, fdiv, gp_fpul): Define.
        (attribute hit_stack): Provide proper default.
        (use_sfunc_addr+1, udivsi3): Predicated on ! TARGET_SH4.
        (udivsi3_i4, udivsi3_i4_single, divsi3_i4, divsi3_i4_single): New insns.
        (udivsi3, divsi3): Emit special patterns for SH4 hardware,
        (mulsi3_call): Now uses match_operand for function address.
        (mulsi3): Also emit code for SH1 case.  Wrap result in REG_LIBCALL /
        REG_RETVAL notes.
        (push, pop, push_e, pop_e): Now define_expands.
        (push_fpul, push_4, pop_fpul, pop_4, ic_invalidate_line): New expanders.
        (movsi_ie): Added y/i alternative.
        (ic_invalidate_line_i, movdf_i4): New insns.
        (movdf_i4+[123], reload_outdf+[12345], movsi_y+[12]): New splitters.
        (reload_indf, reload_outdf, reload_outsf, reload_insi): New expanders.
        (movdf): Add special code for SH4.
        (movsf_ie, movsf_ie+1, reload_insf, calli): Make use of fpscr visible.
        (call_valuei, calli, call_value): Likewise.
        (movsf): Emit no-op move.
        (mov_nop, movsi_y): New insns.
        (blt, sge): generalize to handle DFmode.
        (return predicate): Call emit_fpscr_use and remove_dead_before_cse.
        (block_move_real, block_lump_real): Predicate on ! TARGET_HARD_SH4.
        (block_move_real_i4, block_lump_real_i4, fpu_switch): New insns.
        (fpu_switch0, fpu_switch1, movpsi): New expanders.
        (fpu_switch+[12], fix_truncsfsi2_i4_2+1): New splitters.
        (toggle_sz): New insn.
        (addsf3, subsf3, mulsf3, divsf3): Now define_expands.
        (addsf3_i, subsf3_i, mulsf3_i4, mulsf3_ie, divsf3_i): New insns.
        (macsf3): Make use of fpscr visible.  Disable for SH4.
        (floatsisf2): Make use of fpscr visible.
        (floatsisf2_i4): New insn.
        (floatsisf2_ie, fixsfsi, cmpgtsf_t, cmpeqsf_t): Disable for SH4.
        (ieee_ccmpeqsf_t): Likewise.
        (fix_truncsfsi2): Emit different code for SH4.
        (fix_truncsfsi2_i4, fix_truncsfsi2_i4_2, cmpgtsf_t_i4): New insns.
        (cmpeqsf_t_i4, ieee_ccmpeqsf_t_4): New insns.
        (negsf2, sqrtsf2, abssf2): Now expanders.
        (adddf3, subdf3i, muldf2, divdf3, floatsidf2): New expanders.
        (negsf2_i, sqrtsf2_i, abssf2_i, adddf3_i, subdf3_i): New insns.
        (muldf3_i, divdf3_i, floatsidf2_i, fix_truncdfsi2_i): New insns.
        (fix_truncdfsi2, cmpdf, negdf2, sqrtdf2, absdf2): New expanders.
        (fix_truncdfsi2_i4, cmpgtdf_t, cmpeqdf_t, ieee_ccmpeqdf_t): New insns.
        (fix_truncdfsi2_i4_2+1): New splitters.
        (negdf2_i, sqrtdf2_i, absdf2_i, extendsfdf2_i4): New insns.
        (extendsfdf2, truncdfsf2): New expanders.
        (truncdfsf2_i4): New insn.
        * t-sh (LIB1ASMFUNCS): Add _movstr_i4, _sdivsi3_i4, _udivsi3_i4.
        (MULTILIB_OPTIONS): Add m4-single-only/m4-single/m4.
        * float-sh.h: When testing for __SH3E__, also test for
        __SH4_SINGLE_ONLY__ .
        * va-sh.h (__va_freg): Define to float.
        (__va_greg, __fa_freg, __gnuc_va_list, va_start):
        Define for __SH4_SINGLE_ONLY__ like for __SH3E__ .
        (__PASS_AS_FLOAT, __TARGET_SH4_P): Likewise.
        (__PASS_AS_FLOAT): Use different definition for __SH4__ and
         __SH4_SINGLE__.
        (TARGET_SH4_P): Define.
        (va_arg): Use it.

        * sh.md (movdf_k, movsf_i): Tweak the condition so that
        init_expr_once is satisfied about the existence of load / store insns.

        * sh.md (movsi_i, movsi_ie, movsi_i_lowpart, movsf_i, movsf_ie):
        change m constraint in source operand to mr / mf .

        * va-sh.h (__va_arg_sh1): Use __asm instead of asm.

        * (__VA_REEF): Define.
        (__va_arg_sh1): Use it.

        * va-sh.h (va_start, va_arg, va_copy): Add parenteses.

Sun Nov 22 21:34:02 1998  Jeffrey A Law  (law@cygnus.com)

        * i386/dgux.c (struct option): Add new "description field".
        * m88k/m88k.c (struct option): Likewise.

Sun Nov 22 16:07:57 PST 1998 Jeff Law  (law@cygnus.com)

        * version.c: Bump for snapshot.

Sun Nov 22 13:40:02 1998  Bernd Schmidt  <crux@pool.informatik.rwth-aachen.de>

        * regmove.c (regmove_profitable_p): Use return value of find_matches
        properly.

Sun Nov 22 02:47:37 PST 1998 Jeff Law  (law@cygnus.com)

        * version.c: Bump for snapshot.

Sat Nov 21 22:12:09 1998  Jeffrey A Law  (law@cygnus.com)

        * reload1.c (eliminate_regs): Do not lose if eliminate_regs is called
        without reload having been called earlier.

        * v850.c (ep_memory_operand): Offsets < 0 are not valid for EP
        addressing modes.
        (v850_reorg): Similarly.

        * loop.c (check_dbra_loop): Avoid using gen_add2_insn.

Sat Nov 21 02:18:38 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * loop.c (move_movables): Start of libcall might be new loop start.

Fri Nov 20 12:14:16 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * hash.c (hash_table_init_n): Wrap prototype arguments in PARAMS().

Fri Nov 20 08:34:00 1998  Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>

        * function.c (nonlocal_goto_handler_slots): Renamed from
        nonlocal_goto_handler_slot; now an EXPR_LIST chain.
        (push_function_context_to): Adjust for this change.
        (pop_function_context_from): Likewise.
        (init_function_start): Likewise.
        (expand_function_end): Likewise.
        * function.h (struct function): Likewise.
        * calls.c (expand_call): Likewise.
        * explow.c (allocate_dynamic_stack_space): Likewise.
        * expr.h (nonlocal_goto_handler_slots): Rename its declaration.
        * stmt.c (declare_nonlocal_label): Make a new handler slot for each
        label.
        (expand_goto): When doing a nonlocal goto, find corresponding handler
        slot for it.  Don't put the label address in the static chain register.
        (expand_end_bindings): Break out nonlocal goto handling code into
        three new functions.
        (expand_nl_handler_label, expand_nl_goto_receiver,
        expand_nl_goto_receivers): New static functions, broken out of
        expand_end_bindings and adapted to create one handler per nonlocal
        label.
        * function.c (delete_handlers): Delete insn if it references any of
        the nonlocal goto handler slots.
        * i960.md (nonlocal_goto): Comment out code that modifies
        static_chain_rtx.
        * sparc.md (nonlocal_goto): Likewise.
        (goto_handler_and_restore_v9): Comment out.
        (goto_handler_and_restore_v9_sp64): Comment out.

Thu Nov 19 23:44:38 1998  Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>

        * expr.c (STACK_BYTES): Delete unused macro.
        * calls.c: Provide default for PREFERRED_STACK_BOUNDARY.
        (STACK_BYTES): Use PREFERRED_STACK_BOUNDARY, not STACK_BOUNDARY.
        (expand_call): Likewise.
        (emit_library_call): Likewise.
        (emit_library_call_value): Likewise.
        * function.c: Provide default for PREFERRED_STACK_BOUNDARY.
        (STACK_BYTES): Use PREFERRED_STACK_BOUNDARY, not STACK_BOUNDARY.
        * explow.c: Provide default for PREFERRED_STACK_BOUNDARY.
        (round_push): Use PREFERRED_STACK_BOUNDARY, not STACK_BOUNDARY.
        (allocate_dynamic_stack_space): Likewise.
        * tm.texi (PREFERRED_STACK_BOUNDARY): Document new macro.
        (STACK_BOUNDARY): Update description to reflect the new situation.

Thu Nov 19 22:20:51 1998  Jeffrey A Law  (law@cygnus.com)

        * reorg.c (relax_delay_slots): When optimizing for code size, if a
        return with a filled delay slot is followed by a return with an
        unfilled delay slot, delete the first return and reemit the insn
        that was previously in its delay slot.

        * i860.c (single_insn_src_p): Add missing parens.
        * ginclude/math-3300.h: Likewise.

Thu Nov 19 20:55:59 1998  H.J. Lu  (hjl@gnu.org)

        * regclass.c (init_reg_sets_1): Add prototype.
        (init_reg_modes): Likewise.

1998-11-19 Zack Weinberg  <zack@rabi.phys.columbia.edu>

        * c-common.c: Change warning messages to say `comparison is
        always true' or `comparison is always false' instead of the
        confusing `is always 0', `is always 1'.

Thu Nov 19 19:05:49 1998  Per Bothner  <bothner@cygnus.com>

        * print-tree.c (print_node):  After printing BLOCK or BIND_EXPR,
        break instead of return (which loses closing '>').

Thu Nov 19 19:34:13 1998  Jeffrey A Law  (law@cygnus.com)

        * i386.h (LEGITIMATE_CONSTANT_P): Reject CONST_DOUBLEs that are not
        standard 387 constants.

        * i386.md (jump): Explicitly set "memory" attribute.
        (indirect_jump, prologue_set_stack_ptr): Likewise.
        (prologue_get_pc_and_set_got, pop): Likewise.
        (allocate_stack_worder, blockage, return_internal): Likewise.
        (return_pop_internal, nop): Likewise.
        (epilogue_set_stack_ptr, leave): Likewise.

Thu Nov 19 15:42:54 1998  Nick Clifton  <nickc@cygnus.com>

        * config/arm/coff.h: Set USER_LABEL_PREFIX to "_".

Thu Nov 19 23:20:59 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * reload1.c (reload_reg_free_for_value_p):
        Early auto_inc reloads don't conflict with outputs.

Thu Nov 19 12:58:55 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * configure.in: Don't do AC_CHECK_HEADERS(wait.h sys/wait.h).
        Instead call AC_HEADER_SYS_WAIT.

        * collect2.c: Don't provide defaults for sys/wait.h macros.
        * gcc.c: Likewise.
        * protoize.c: Likewise.  Also, don't include sys/wait.h.

        * system.h: Include sys/wait.h and provide macro defaults.

1998-11-19  Andreas Schwab  <schwab@issan.cs.uni-dortmund.de>

        * Makefile.in (mandir): Set to @mandir@.
        (man1dir): New variable to hold the former value of $(mandir).
        Replace all uses of $(mandir) by $(man1dir).

Wed Nov 18 16:31:28 1998  Jim Wilson  <wilson@cygnus.com>

        * reload.c (find_reloads_address_part): If have a CONST_INT, create
        a new one before passing it to force_const_mem.

        * reload.c (find_reloads_toplev): Pass &x instead of NULL_PTR in
        find_reloads_address call.

Wed Nov 18 22:13:00 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * expr.c (store_expr): Don't generate load-store pair
        if TEMP is identical (according to ==) with TARGET.

Tue Nov 17 22:25:16 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * reload1.c (reload_reg_free_for_value_p): When considered reload
        has an output, matching inputs are not sufficient to avoid conflict.

Tue Nov 17 11:51:16 1998  Mark Mitchell  <mark@markmitchell.com>

        * hash.h (hash_table_key): New type.
        (hash_entry): Change `string' field to generic `key'.
        (hash_table): Add `comp' and `hash' functions.
        (hash_table_init): Take them as input.
        (hash_table_init_n): Likewise.
        (hash_lookup): Modify for generic keys.
        (hash_newfunc): Likewise.
        (hash_traverse): Likewise.
        (string_hash): New function.
        (string_compare): Likewise.
        (string_copy): Likewise.
        * hash.c (hash_table_init_n): Modify for generic keys.
        (hash_table_init): Likewise.
        (hash_lookup): Likewise.
        (hash_newfunc): Likewise.
        (hash_traverse): Likewise.
        (string_hash): Split out from hash_lookup.
        (string_compare): New function.
        (string_copy): Split out from hash_lookup.
        * tlink.c (symbol_hash_newfunc): Modify for new interfaces to hash
        tables.
        (symbol_hash_lookup): Likewise.
        (file_hash_newfunc): Likewise.
        (file_hash_lookup): Likewise.
        (demangled_hash_newfunc): Likewise.
        (demangled_hash_lookup): Likewise.
        (tlink_int): Likewise.
        (read_repo_file): Likewise.
        (recompile_files): Likewise.
        (demangle_new_symbols): Likewise.
        (scan_linker_output): Likewise.
        
Tue Nov 17 17:13:53 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * flow.c (insn_dead_p): New argument NOTES.  Changed all callers.

Mon Nov 16 17:56:07 1998  David Edelsohn  <edelsohn@mhpcc.edu>

        * rs6000.c (output_mi_thunk): Improve test for local branch.

Mon Nov 16 17:56:07 1998  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

        * rs6000.c (output_mi_thunk): Correct test for aggregate values.

Mon Nov 16 21:02:52 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * reload1.c (reload_reg_free_before_p): Delete.
        Changed all callers to use reload_reg_free_for_value_p instead.
        (reload_reg_free_for_value_p): Handle more reload types.
        A RELOAD_FOR_INPUT doesn't conflict with its
        RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS.
        Add special case for OUT == const0_rtx.
        Added ignore_address_reloads argument.  Changed all callers.

Mon Nov 16 02:22:29 1998  Jason Merrill  <jason@yorick.cygnus.com>

        * toplev.c (compile_file): Don't pedwarn about undefined static
        functions just because we passed -Wunused.

Mon Nov 16 04:41:41 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * function.c (purge_addressof_1): Unshare rtl created by
        store_bit_field.

Mon Nov 16 04:23:06 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * regmove.c (regmove_optimize): Don't do anything but
        optimize_reg_copy[123] when flag_regmove is not set.

Sat Nov 14 15:05:07 1998  Richard Henderson  <rth@cygnus.com>

        * alpha.md (addsi3, subsi3): Revise 5 Nov change to store DImode
        value in paradoxical SImode result, rather than truncating midpoint.

Fri Nov 13 22:19:23 1998  Richard Henderson  <rth@cygnus.com>

        * alpha.c (reg_not_elim_operand): New.
        * alpha.h (PREDICATE_CODES): Add it.
        * alpha.md (s48addq, s48subq patterns): Use it as the predicate
        for the multiplicand.

Fri Nov 13 22:50:37 1998  David Edelsohn  <edelsohn@mhpcc.edu>

        * rs6000.md (movsf): Remove explicit secondary-reload-like
        functionality.  Only truncate SFmode store if in FPR.
        (movsf splitters): Combine const_double splitters.
        (movsf_hardfloat): Add GPR support.

Fri Nov 13 11:02:11 1998  Stan Cox  <scox@cygnus.com>

        * splet.h (SUBTARGET_OVERRIDE_OPTIONS): New to
        deprecate -mlive-g0 and -mbroken-saverestore.
        * t-splet (MULTILIB_OPTIONS): Likewise.
        
        * sparc.c (sparc_flat_compute_frame_size): Correctly calc args_size
        in a leaf function.  Clarify total_size/extra_size relationship.

Thu Nov 12 19:20:57 1998  Geoffrey Noer  <noer@cygnus.com>

        * i386/cygwin32.asm: Delete.
        * i386/cygwin.asm: New file, renamed from cygwin32.asm.
        * i386/cygwin32.h: Delete.
        * i386/cygwin.h: New file, renamed from cygwin32.h.
        * i386/t-cygwin32: Delete.
        * i386/t-cygwin: New file, renamed from t-cygwin32.  Include
        cygwin.asm instead of cygwin32.asm.  Remove "32" from comment.
        * i386/x-cygwin32: Delete.
        * i386/x-cygwin: New file, renamed from x-cygwin32.
        * i386/xm-cygwin32: Delete.
        * i386/xm-cygwin: New file, renamed from xm-cygwin32.  Use newly
        renamed cygwin_ funcs for path translations.
        * i386/win32.h: Define __CYGWIN__ when -mcygwin given.
        * i386/winnt.c: Remove "32" from comment about cygwin.
        * i386/mingw32.h: Fix references to cygwin32.h in light of above.
        * rs6000/cygwin32.h: Delete.
        * rs6000/cygwin.h: New file, renamed from cygwin32.h.  Add
        -D__CYGWIN__ to CPP_PREDEFINES.
        * rs6000/x-cygwin32: Delete.
        * rs6000/x-cygwin: New file, renamed from x-cygwin32.
        * rs6000/xm-cygwin32: Delete.
        * rs6000/xm-cygwin: New file, renamed from xm-cygwin32.

        * configure.in: Check for cygwin* instead of cygwin32.  Account
        for the rename of cygwin-related config files to lose the "32"s.
        * configure: Regenerate.

        * cccp.c, collect2.c, gcc.c, getpwd.c, libgcc2.c, protoize.c,
        toplev.c: Change all refs to __CYGWIN32__ to __CYGWIN__.

Wed Nov 11 12:25:19 1998  Tom Tromey  <tromey@cygnus.com>

        * Makefile.in (JAVAGC): New macro.
        * configure: Rebuilt.
        * configure.in: Recognize --enable-java-gc argument.  Subst
        `JAVAGC' variable.

Thu Nov 12 03:32:16 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        Handle equivalences that have been obscured by gcse:

        * reload1.c (reload): Handle equivalences set up in multiple places.
        * local-alloc.c (reg_equiv_init_insns): New variable.
        (no_equiv): New function.
        (update_equiv_regs): Handle equivalences set up in multiple places.
        Don't ignore an insn just because its destination is likely to be
        spilled.

Wed Nov 11 13:46:13 1998  Jim Wilson  <wilson@cygnus.com>

        * except.c (expand_eh_return): Readd force_operand call lost in
        Sept 15 change.

Tue Nov 10 17:04:11 1998  David Edelsohn  <edelsohn@mhpcc.edu>

        * rs6000.h (LEGITIMIZE_ADDRESS): Add missing goto on last case.

1998-11-09  Andreas Schwab  <schwab@issan.cs.uni-dortmund.de>

        * dbxout.c: Check HAVE_STAB_H instead of HAVE_STABS_H.

Mon Nov  9 20:15:19 1998  Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>

        * regmove.c (regmove_optimize): Fix error in last change.

Mon Nov  9 16:37:52 1998  Andrew Cagney  <cagney@b1.cygnus.com>

        * mips.c (function_prologue): When TARGET_MIPS16, adjust the register
        offset in the .mask pseudo to compensate for frame pointer adjustments.
        (mips16_fp_args, build_mips16_call_stub): For little endian, do not
        word swap arguments moved to/from FP registers.
        * mips16.S (DFREVCMP): Reverse arguments to OPCODE.
        
Mon Nov 9 09:47:06 PST 1998 Jeff Law  (law@cygnus.com)

        * version.c: Bump for snapshot.

Mon Nov 9 02:14:14 PST 1998 Jeff Law  (law@cygnus.com)

        * version.c: Bump for snapshot.

Mon Nov  9 03:06:24 1998  Jeffrey A Law  (law@cygnus.com)

        * reload1.c (delete_output_reload_insn): If a pseudo is set multiple
        times, then it can not be completely replaced.

Mon Nov  9 00:39:02 1998  Richard Henderson  <rth@cygnus.com>

        * alpha.md (call, call_value) [OSF]: Correct alt 3 insn length.

Sun Nov  8 17:50:30 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * gansidecl.h: Prepend a "G" to the macro wrapping this file
        (to distinguish it from the macro wrapping ansidecl.h.)
        Include libiberty's ansidecl.h.  Remove all redundant definitions.
        Define the PROTO() style macros in terms of the PARAMS() ones.

        
        * calls.c (emit_library_call): Switch on ANSI_PROTOTYPES, not
        __STDC__, when deciding whether to use ANSI variable args.
        (emit_library_call_value): Likewise.

        * cccp.c (error): Likewise.
        (warning): Likewise.
        (error_with_line): Likewise.
        (warning_with_line): Likewise.
        (pedwarn): Likewise.
        (pedwarn_with_line): Likewise.
        (pedwarn_with_file_and_line): Likewise.
        (fatal): Likewise.

        * cexp.y (error): Likewise.
        (pedwarn): Likewise.
        (warning): Likewise.

        * collect2.c (fatal_perror): Likewise.
        (fatal): Likewise.
        (error): Likewise.

        * combine.c (gen_rtx_combine): Likewise.

        * cpperror.c (cpp_message): Likewise.
        (cpp_fatal): Likewise.

        * cpplib.c (cpp_error): Likewise.
        (cpp_warning): Likewise.
        (cpp_pedwarn): Likewise.
        (cpp_error_with_line): Likewise.
        (cpp_warning_with_line): Likewise.
        (cpp_pedwarn_with_line): Likewise.
        (cpp_pedwarn_with_file_and_line): Likewise.

        * cpplib.h: Don't define PARAMS() macro.

        * demangle.h: Likewise.

        * doprint.c (checkit): Switch on ANSI_PROTOTYPES, not __STDC__,
        when deciding whether to use ANSI variable args.

        * emit-rtl.c (gen_rtx): Likewise.
        (gen_rtvec): Likewise.

        * final.c (asm_fprintf): Likewise.

        * fix-header.c (cpp_message): Likewise.
        (fatal): Likewise.
        (cpp_fatal): Likewise.

        * gcc.c (concat): Likewise.
        (fatal): Likewise.
        (error): Likewise.

        * genattr.c (fatal): Likewise.

        * genattrtab.c (attr_rtx): Likewise.
        (attr_printf): Likewise.
        (fatal): Likewise.

        * gencodes.c (fatal): Likewise.

        * genconfig.c (fatal): Likewise.

        * genemit.c (fatal): Likewise.

        * genextract.c (fatal): Likewise.

        * genflags.c (fatal): Likewise.

        * genopinit.c (fatal): Likewise.

        * genoutput.c (fatal): Likewise.
        (error): Likewise.

        * genpeep.c (fatal): Likewise.

        * genrecog.c (fatal): Likewise.

        * halfpic.h: Switch on ANSI_PROTOTYPES, not __STDC__, when
        deciding whether to declare `tree_node' and `rtx_def'.

        * hash.h: Don't define stuff we get from gansidecl.h.

        * mips-tfile.c: Likewise.  Define __proto() in terms of PARAMS().
        (fatal): Switch on ANSI_PROTOTYPES, not __STDC__, when deciding
        whether to use ANSI variable args.
        (error): Likewise.

        * prefix.c (concat): Likewise.

        * scan.h: Likewise.

        * system.h: Likewise.

        * toplev.c (error_with_file_and_line): Likewise.
        (error_with_decl): Likewise.
        (error_for_asm): Likewise.
        (error): Likewise.
        (fatal): Likewise.
        (warning_with_file_and_line): Likewise.
        (warning_with_decl): Likewise.
        (warning_for_asm): Likewise.
        (warning): Likewise.
        (pedwarn): Likewise.
        (pedwarn_with_decl): Likewise.
        (pedwarn_with_file_and_line): Likewise.
        (sorry): Likewise.
        (really_sorry): Likewise.

        * toplev.h: Switch on ANSI_PROTOTYPES, not __STDC__, when deciding
        whether to declare `tree_node' and `rtx_def'.

        * tree.c (build): Switch on ANSI_PROTOTYPES, not __STDC__, when
        deciding whether to use ANSI variable args.
        (build_nt): Likewise.
        (build_parse_node): Likewise.

Sun Nov 8 13:10:55 PST 1998 Jeff Law  (law@cygnus.com)

        * version.c: Bump for snapshot.

Sat Nov  7 23:34:01 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * Makefile.in (libcpp.a): Check RANLIB_TEST before runing RANLIB.

Sat Nov  7 22:26:19 1998  David Edelsohn  <edelsohn@mhpcc.edu>

        * collect2.c (main, case 'b'): Use else if.

Sat Nov  7 15:35:25 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * configure.in (host_xm_file, build_xm_file, xm_file, tm_file):
        Arrange to include gansidecl.h in {ht}config.h & tm.h just
        before the config/ directory headers.
        (tm_file_list, host_xm_file_list, build_xm_file_list): Handle
        gansidecl.h in the list of dependencies.

        * Makefile.in (RTL_BASE_H): Don't depend on gansidecl.h.
        (TREE_H, DEMANGLE_H, RECOG_H, REGS_H, libgcc2.a, stmp-multilib,
        mbchar.o, collect2.o, pexecute.o, vfprintf.o, splay-tree.o, gcc.o,
        gencheck.o, choose-temp.o, mkstemp.o, mkstemp.o, prefix.o,
        dyn-string.o, cexp.o, cccp.o, cppmain.o, cpplib.o, cpperror.o,
        cppexp.o, cppfiles.o, cpphash.o, cppalloc.o, scan-decls.o):
        Likewise.

        * cccp.c: Don't include gansidecl.h.
        * cexp.y: Likewise.
        * collect2.c: Likewise.
        * config/c4x/c4x.c: Likewise.
        * config/v850/v850.h: Likewise.
        * cppalloc.c: Likewise.
        * cpperror.c: Likewise.
        * cppexp.c: Likewise.
        * cppfiles.c: Likewise.
        * cpphash.c: Likewise.
        * cpplib.c: Likewise.
        * cppmain.c: Likewise.
        * cppulp.c: Likewise.
        * demangle.h: Likewise.
        * doprint.c: Likewise.
        * dyn-string.c: Likewise.
        * eh-common.h: Likewise.
        * fix-header.c: Likewise.
        * frame.c: Likewise.
        * gcc.c: Likewise.
        * gcov.c: Likewise.
        * gen-protos.c: Likewise.
        * gencheck.c: Likewise.
        * halfpic.h: Likewise.
        * hash.c: Likewise.
        * machmode.h: Likewise.
        * mbchar.c: Likewise.
        * prefix.c: Likewise.
        * protoize.c: Likewise.
        * recog.h: Likewise.
        * rtl.h: Likewise.
        * scan-decls.c: Likewise.
        * tree.h: Likewise.
        * varray.h: Likewise.
        
Sat Nov  7 11:37:53 1998  Richard Henderson  <rth@cygnus.com>

        * i386.md (call_value_pop): If we're not popping anything,
        defer to call_value.
        (call_pop): Likewise defer to call.

Sat Nov  7 02:49:56 1998  Richard Henderson  <rth@cygnus.com>

        * function.c (purge_addressof): Clear purge_addressof_replacements
        only after processing the whole function.

Sat Nov  7 00:54:55 1998  Jeffrey A Law  (law@cygnus.com)

        * reload1.c (reload): If we can not perform a particular elimination
        when we thought we could earlier, then we must always iterate through
        the loop at least one more time.

Fri Nov  6 19:37:33 1998  Richard Henderson  <rth@cygnus.com>

        * alpha.c (add_operand): Simplify the CONST_INT match.
        (sext_add_operand): Correct typo in comparison by using
        CONST_OK_FOR_LETTER_P.
        * alpha.md (s?addq): Use sext_add_operand to allow the negative
        constant alternatives to be generated.
        (mulsi3, muldi3, umuldi3_highpart): Loosen constraints to allow
        small constants, since the hw instructions do.

Fri Nov  6 20:15:19 1998  Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>

        * reload1.c (emit_reload_insns):  When rewriting the SET_DEST of a
        previous insn to store directly into our reload register, make sure
        that if the source of the previous insn is a reload register, its
        spill_reg_store and spill_reg_stored_to values are cleared.

Fri Nov  6 16:35:10 1998  David Edelsohn  <edelsohn@mhpcc.edu>

        * rs6000.md (floatunssidf2_internal splitter): Use base register
        operand, not hard-coded SP.

Fri Nov  6 04:07:53 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * jump.c (calculate_can_reach_end): Fix thinko.

Fri Nov  6 00:16:04 1998  Jeffrey A Law  (law@cygnus.com)

        * reorg.c (fill_simple_delay_slots): Fix typo.

        * romp.h (LEGITIMIZE_ADDRESS): Fix typo.

Fri Nov  6 00:10:00 1998  Jan Hubicka (hubicka@freesoft.cz)

        * i386.md (extendsidi2): Use # in the output template.
        (extendsidi splitters): New splitters.

Thu Nov  5 11:13:27 1998  Nick Clifton  <nickc@cygnus.com>

        * configure.in: Use unknown-elf.h as tm_file for arm-elf
        configuarions.
        * configure: Regenerate.

Thu Nov  5 07:59:05 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * jump.c (init_label_info, delete_barrier_successors,
        mark_all_labels, delete_unreferenced_labels,
        delete_noop_moves, calculate_can_reach_end): New functions broken
        out of jump_optimize.
        (jump_optimize): Use them.

Thu Nov  5 07:57:45 EST 1998  Andrew MacLeod  <amacleod@cygnus.com>

        * except.c (expand_fixup_region_end): Make sure outer context labels
        are not issued in an inner context during cleanups.

Thu Nov  5 04:03:06 1998  Richard Henderson  <rth@cygnus.com>

        * alpha.md (addsi3, subsi3): No new temporaries once cse is
        no longer expected.

Thu Nov  5 03:29:19 1998  Richard Henderson  <rth@cygnus.com>

        * alpha.md (addsi3, subsi3): Expand to a DImode temporary so as
        to expose this midpoint to CSE.

Thu Nov  5 03:42:54 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * config/sparc/sparc.md (movdf_const_intreg_sp64): Enable again.

Thu Nov  5 10:53:01 1998  Andreas Schwab  <schwab@issan.cs.uni-dortmund.de>

        * configure.in: Bring over gcc2 change of Nov 19 1997.

Wed Nov  4 23:43:08 1998  Graham  <grahams@rcp.co.uk>

        * toplev.c (output_lang_identify): Make definition dependent on
        ASM_IDENTIFY_LANGUAGE.

        * print-rtl.c (spaces): Make static.

Wed Nov  4 22:16:36 1998  Hans-Peter Nilsson  <hp@axis.se>

        * extend.texi: Clarify proper uses for register clobbers in asms.

Wed Nov  4 22:16:36 1998  Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>

        * recog.h (enum op_type): Define.
        (constrain_operands): Adjust prototype.
        (recog_op_type): Declare new variable.
        * recog.c (recog_op_type): New variable.
        (insn_invalid_p): Allow modifying an asm statement after reload.
        (extract_insn): Set up recog_op_type.
        (constrain_operands): Lose INSN_CODE_NUM arg.  All callers changed.
        Don't compute operand types, use recog_op_type.
        Use the information computed by extract_insn instead of the previous
        method of finding it by insn code number.
        * caller-save.c (init_caller_save): Use extract_insn, not insn_extract.
        * reorg.c (fill_slots_from_thread): Likewise.
        * reload1.c (reload_as_needed): Likewise.
        (gen_reload): Likewise.
        (inc_for_reload): Likewise.
        (reload_cse_simplify_operands): Likewise.
        Use the information computed by extract_insn instead of the previous
        method of finding it by insn code number.
        * genattrtab.c (write_attr_case): Generate call to extract_insn, not
        insn_extract.
        * final.c (final_scan_insn): Use extract_insn, not insn_extract.
        (cleanup_operand_subregs): Use extract_insn, not insn_extract.
        Use the information computed by extract_insn instead of the previous
        method of finding it by insn code number.
        * regmove.c (find_matches): Likewise.  Change meaning of the return
        value to be nonzero if the optimization can be performed, zero if
        not.  All callers changed.
        Shorten some variable names to fix formatting problems.
        (regmove_optimize): Shorten some variable names to fix formatting
        problems.
        Use the information computed by extract_insn instead of the previous
        method of finding it by insn code number.
        * regclass.c (scan_one_insn): Likewise.
        (record_reg_classes): Don't compute operand types, use recog_op_type.
        * reload.c (find_reloads): Lose CONSTRAINTS1 variable; use
        recog_constraints instead.

Wed Nov  4 21:37:46 1998  Jeffrey A Law  (law@cygnus.com)

        * rtl.h (flow2_completed): Declare.
        * flow.c (flow2_completed): Definition.
        * toplev.c (rest_of_compilation): Set and clear flow2_completed
        as necessary.

Wed Nov  4 19:15:37 1998  "Melissa O'Neill" <oneill@cs.sfu.ca>

        * Makefile.in (libcpp.a): Ranlib libcpp.a

        * cppulp.c (user_label_prefix): Initialize.
        
Wed Nov  4 19:07:08 1998   John Wehle  (john@feith.com)

        * flow.c (mark_regs_live_at_end): Mark the stack pointer as live
        at a RETURN if current_function_sp_is_unchanging is set.

Wed Nov  4 18:16:29 1998 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl> 

        * emit-rtl.c (try_split): Fixed error in Oct 10 patch.

Wed Nov  4 15:11:15 1998  Geoffrey Noer  <noer@cygnus.com>

        * i386/cygwin32.h (MASK_WIN32, MASK_CYGWIN, MASK_WINDOWS, MASK_DLL,
        TARGET_WIN32, TARGET_CYGWIN, TARGET_WINDOWS, TARGET_DLL): New.
        (SUBTARGET_SWITCHES): Add -mno-cygwin, -mcygwin, and -mdll options.
        (CPP_PREDEFINES): Don't define __CYGWIN32__ here.
        (STARTFILE_SPEC): Handle -mdll, -mno-cygwin options.
        (CPP_SPEC): Handle -mno-cygwin option.  Define __CYWIN__ in addition
        to __CYGWIN32__.
        (LIB_SPEC): Handle -mno-cyginw option.
        (LINK_SPEC): Handle -mdll.

Wed Nov  4 22:56:14 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * reload.c (find_reloads): Fix test for usage by other reload
        to handle secondary reloads properly.

Wed Nov  4 17:25:10 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * reload1.c (ELIMINABLE_REGS, NUM_ELIMINABLE_REGS): Introduce an
        intermediate structure which has exactly the members provided by
        ELIMINABLE_REGS.  Define NUM_ELIMINABLE_REGS in terms of the
        static intermediate structure.
        
        (init_elim_table): Xmalloc() `reg_eliminate', and initialize it
        from the intermediate structure.  Do the same analogous fix in
        the case where ELIMINABLE_REGS is not defined.

Tue Nov  3 20:50:03 1998  Jeffrey A Law  (law@cygnus.com)

        * pa.h (SELECT_SECTION): Fix thinko.

Tue Nov  3 17:51:36 1998  Jim Wilson  <wilson@cygnus.com>

        * dwarf2out.c (output_call_frame_info): Comments on last change.

Tue Nov  3 07:51:43 1998  Richard Earnshaw (rearnsha@arm.com)

        * arm.c (add_constant): When taking the address of an item in the
        pool, get the mode of the item addressed.

        * arm.c (final_prescan_insn case INSN): If an insn doesn't 
        contain a SET or a PARALLEL, don't consider it for conditional
        execution.

        Restore ABI compatibility for NetBSD.
        * arm/netbsd.h (DEFAULT_PCC_STRUCT_RETURN): Override setting in
        arm.h
        (RETURN_IN_MEMORY): Likewise.

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>

        * objc/config-lang.in: Do not output the name of the selected
        thread file when building the front-end.  The Makefile for the
        runtime library will do this.

        * objc/Make-lang.in: Do not build the runtime library or install
        the Objective C header files.  The Makefile for the runtime
        library will do this.

        * objc/Makefile.in (all.indirect): Only build the front-end.
        (compiler): Rename to `frontend'.
        (obj-runtime): Remove target.
        (copy-headers): Likewise.
        (clean): No need to remove `libobjc.a' any longer.

Sat Sep 12 11:37:19 1998  Michael Meissner  <meissner@cygnus.com>

        * rs6000.h ({ASM,CPP}_CPU_SPEC): Add support for all machines
        supported with -mcpu=xxx.

Fri Sep 11 23:55:54 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * flow.c (mark_set_1): Recognize multi-register structure return
        values in CALL insns.
        (mark_used_regs): Likewise.
        (count_reg_sets_1): Likewise.
        (count_reg_references): Likewise.
        * rtlanal.c (note_stores): Likewise.
        (reg_overlap_mentioned_p): Likewise.
        * haifa-sched.c (check_live_1): Likewise.
        (update_live_1): Likewise.
        (sched_analyze_1): Likewise.
        (sched_note_set): Likewise.
        (birthing_insn_p): Likewise.
        (attach_deaths): Likewise.

        * config/sparc/sparc.md (movdf_const_intreg_sp64): Disable.


Fri Sep 11 22:57:55 1998  Eric Dumazet  <dumazet@cosmosbay.com>

        * config/i386/sco5.h (ASM_WEAKEN_LABEL): Defined as in svr4.h.

Thu Sep 10 22:02:04 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * glimits.h (__LONG_MAX__): Recognize __sparcv9 too.

Thu Sep 10 21:19:10 1998  Jakub Jelinek  <jj@sunsite.ms.mff.cuni.cz>

        * configure.in: Add check for GAS subsection -1 support.
        * acconfig.h (HAVE_GAS_SUBSECTION_ORDERING): Add.
        * configure config.in: Rebuilt.
        * config/sparc/sparc.h (CASE_VECTOR_MODE): For V9 flag_pic, use
        SImode is subsection -1 works, else use DImode.
        (ASM_OUTPUT_ADDR_VEC_START, ASM_OUTPUT_ADDR_VEC_END): Define if
        subsection -1 works.
        * config/sparc/sparc.c (sparc_output_addr_vec,
        sparc_output_addr_diff_vec): Use them if defined.

Thu Sep 10 10:46:01 1998  Mark Mitchell  <mark@markmitchell.com>

        * tree.h (DECL_ORIGIN): New macro.
        * integrate.c (copy_and_set_decl_abstract_origin): New function.
        (copy_decl_list): Use it.
        (integrate_parm_decls): Likewise.
        (integrate_decl_tree): Likewise.
        * dwarf2out.c (decl_ultimate_origin): Simplify.
        * dwarfout.c (decl_ultimate_origin): Likewise.
        * c-decl.c (duplicate_decls): Use DECL_ORIGIN.
        (pushdecl): Likewise.

Thu Sep 10 08:01:31 1998  Anthony Green  <green@cygnus.com>

        * config/rs6000/rs6000.c (output_epilog): Add Java support.

Thu Sep 10 14:48:59 1998  Martin von Löwis  <loewis@informatik.hu-berlin.de>

        * invoke.texi (C++ Dialect Options): Document -fhonor-std.

Thu Sep 10 01:38:05 1998  Jeffrey A Law  (law@cygnus.com)

        * reg-stack.c (straighten_stack): Do nothing if the virtual stack is
        empty or has a single entry.

        * toplev.c (rest_of_compilation): Open up the dump file for reg-stack
        before calling reg_to_stack.

Thu Sep 10 00:03:34 1998  Richard Henderson  <rth@cygnus.com>

        * alpha.c (alphaev5_insn_pipe): Abort on default case.
        (alphaev5_next_group): Swallow CLOBBERs and USEs.

        * c-tree.h (warn_long_long): Declare it.

Wed Sep  9 23:31:36 1998  (Stephen L Moshier) <moshier@world.std.com>

        * emit-rtl.c (gen_lowpart_common): Disable optimization of
        initialized float-int union if the value is a NaN.

Wed Sep  9 23:00:48 1998  Nathan Sidwell  <nathan@acm.org>

        * c-lex.c (real_yylex): Don't warn about long long constants if 
        we're allowing long long

Wed Sep  9 21:58:41 1998  Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>

        * except.h (current_function_eh_stub_label): Declare.
        (current_function_eh_old_stub_label): Declare.
        * function.h (struct function): New members eh_stub_label and
        eh_old_stub_label.
        * except.c (current_function_eh_stub_label): New variable.
        (current_function_eh_old_stub_label): New variable.
        (init_eh_for_function): Clear them.
        (save_eh_status): Save them.
        (restore_eh_status): Restore them.
        (expand_builtin_eh_stub): Set current_function_eh_stub_label.
        (expand_builtin_eh_stub_old): Set current_function_eh_old_stub_label.
        * flow.c (find_basic_blocks_1): When handling a REG_LABEL note, don't
        make an edge from the block that contains it to the block starting
        with the label if this label is one of the eh stub labels.
        If eh stub labels exist, show they are reachable from the last block
        in the function.

        * reload1.c (reload): Break out several subroutines and make some
        variables global.
        (calculate_needs_all_insns): New function, broken out of reload.
        (calculate_needs): Likewise.
        (find_reload_regs): Likewise.
        (find_group): Likewise.
        (find_tworeg_group): Likewise.
        (something_needs_reloads): New global variable, formerly in reload.
        (something_needs_elimination): Likewise.
        (caller_save_spill_class): Likewise.
        (caller_save_group_size): Likewise.
        (max_needs): Likewise.
        (group_size): Likewise.
        (max_groups): Likewise.
        (max_nongroups): Likewise.
        (group_mode): Likewise.
        (max_needs_insn): Likewise.
        (max_groups_insn): Likewise.
        (max_nongroups_insn): Likewise.
        (failure): Likewise.

        * print-rtl.c (print_rtx): For MEMs, print MEM_ALIAS_SET.

Wed Sep  9 13:14:41 1998  Richard Henderson  <rth@cygnus.com>

        * loop.c (load_mems): Copy rtx for output mem.

Wed Sep  9 15:16:58 1998  Gavin Romig-Koch  <gavin@cygnus.com>

        * mips/abi64.h (LONG_MAX_SPEC): Don't set LONG_MAX for
        mips1 or mips2 either.

Wed Sep  9 12:31:35 1998  Jeffrey A Law  (law@cygnus.com)

        * pa.c (pa_reorg): New marking scheme for jumps inside switch
        tables.
        (pa_adjust_insn_length): Update to work with new marking scheme
        for jumps inside switch tables. 
        * pa.md (switch_jump): Remove pattern.
        (jump): Handle jumps inside jump tables.

        * Makefile.in (profile.o): Depend on insn-config.h

Wed Sep  9 09:36:51 1998  Jim Wilson  <wilson@cygnus.com>

        * iris6.h (DWARF2_UNWIND_INFO): Undef.

Wed Sep  9 01:32:01 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        Add preliminary native sparcv9 Solaris support.
        * configure.in: Recognize sparv9-*-solaris2*
        * configure: rebuilt
        * config.sub: Recognize sparcv9 just like sparc64.
        * config/sparc/sol2-c1.asm config/sparc/sol2-ci.asm
        config/sparc/sol2-cn.asm: Macroize so it can be shared between
        32-bit and 64-bit Solaris systems.
        * config/sparc/t-sol2: Assemble those with cpp.
        * config/sparc/sparc.h (TARGET_CPU_sparcv9): New alias for v9.
        (*TF*_LIBCALL): If ARCH64 use V9 names.
        * config/sparc/{xm-sysv4-64,sol2-sld-64}.h: New files.

Wed Sep  9 01:07:30 1998  Jakub Jelinek  <jj@sunsite.ms.mff.cuni.cz>

        * config/sparc/sparc.h (TARGET_CM_MEDMID): Fix documentation.
        (CASE_VECTOR_MODE): Set to SImode even if PTR64, when MEDLOW and
        not doing pic.
        (ASM_OUTPUT_ADDR_{VEC,DIFF}_ELT): Check CASE_VECTOR_MODE not
        Pmode.
        * config/sparc/sparc.md (tablejump): Likewise, and sign extend op0
        to Pmode if CASE_VECTOR_MODE is something else.

Wed Sep  9 00:10:31 1998  Jeffrey A Law  (law@cygnus.com)

        * prefix.c (update_path): Correctly handle cases where PATH is
        a substring of the builtin prefix, but specifies a different
        directory location.

Tue Sep  8 23:46:04 1998  Hans-Peter Nilsson  <hp@axis.se>

        * expr.c: Corrected comment about what MOVE_RATIO does.
        * config/alpha/alpha.h: Ditto.
        * config/1750a/1750a.h: Ditto.
        * config/clipper/clipper.h: Ditto.
        * config/i386/i386.h: Ditto.

Tue Sep  8 22:56:12 1998  Jeffrey A Law  (law@cygnus.com)

        * configure.in (m68k-next-nextstep3*): Use collect2.
        Similarly for x86 NeXT configurations.
        * configure: Rebuilt.

Tue Sep  8 01:38:57 1998  Nathan Sidwell  <nathan@acm.org>

        * configure.in: Don't assume srcdir is .../gcc
        * configure: Rebuilt.

Sat Sep  5 16:34:34 EDT 1998  John Wehle  (john@feith.com)

        * global.c: Update comments.
        (global_alloc): Assign allocation-numbers
        even for registers allocated by local_alloc in case
        they are later spilled and retry_global_alloc is called.
        (mark_reg_store, mark_reg_clobber,
        mark_reg_conflicts, mark_reg_death): Always record a
        conflict with a pseudo register even if it has been
        assigned to a hard register.
        (dump_conflicts): Don't list pseudo registers already assigned to
        a hard register as needing to be allocated, but do list their
        conflicts.
        * local-alloc.c: Update comment.

Mon Sep  7 23:38:01 1998  Jeffrey A Law  (law@cygnus.com)

        * configure.in: Check for bogus GCC_EXEC_PREFIX and LIBRARY_PATH.
        * configure: Rebuilt.

Mon Sep  7 22:41:46 1998  Michael Meissner  <meissner@cygnus.com>

        * rs6000.c (rs6000_override_options): Fix name for ec603e, to add
        missing 'c'.
        * t-ppccomm (MULTILIB_MATCHES_FLOAT): Add support for -mcpu=xxx
        for all targets that set -msoft-float.

Mon Sep  7 23:30:07 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * toplev.c (print_switch_values): Make static to match prototype.

Mon Sep  7 19:13:59 1998  Jeffrey A Law  (law@cygnus.com)

        * configure.in: If we are unable to find the "gnatbind" program,
        then do not configure the ada subdir.
        * configure: Rebuilt.

Sun Sep 6 14:03:58 PDT 1998 Jeff Law  (law@cygnus.com)

        * version.c: Bump for snapshot.

Sun Sep 6 13:28:07 PDT 1998 Jeff Law  (law@cygnus.com)

        * version.c: Bump for snapshot.

Sun Sep  6 08:54:14 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * Makefile.in (toplev.o): Depend on $(EXPR_H).
        (insn-extract.o, insn-attrtab.o): Depend on toplev.h.

        * gansidecl.h: Define ATTRIBUTE_NORETURN.

        * genattrtab.c: Have insn-attrtab.c include toplev.h.

        * genextract.c: Have insn-extract.c include toplev.h.

        * rtl.h: Don't prototype `fatal_insn_not_found' and `fatal_insn'.

        * toplev.c: Include expr.h.
        (really_sorry, fancy_abort): Remove prototypes.
        (set_target_switch): Add argument in prototype.
        (vfatal): Mark prototype with ATTRIBUTE_NORETURN.
        (v_really_sorry): Likewise.
        (print_version, print_single_switch, print_switch_values): Make
        static and add prototype arguments.
        (decl_printable_name): Add prototype arguments.
        (lang_expand_expr_t): New typedef.
        (lang_expand_expr): Declare as a lang_expand_expr_t.
        (incomplete_decl_finalize_hook): Add prototype argument.
        (decl_name): Mark variable `verbosity' with ATTRIBUTE_UNUSED.
        (botch): Likewise for variable `s'.
        (rest_of_type_compilation): Mark variables `type' and `toplev'
        with ATTRIBUTE_UNUSED if none of DBX_DEBUGGING_INFO,
        XCOFF_DEBUGGING_INFO or SDB_DEBUGGING_INFO are defined.
        (display_help): Make variable `i' an `unsigned long'.
        (main): Remove unused parameter `envp'.
        Cast assignment to `lang_expand_expr' to a `lang_expand_expr_t'.
        Cast -1 when comparing it with a `size_t'.

        * toplev.h (fatal, fatal_io_error, pfatal_with_name): Mark
        prototype with ATTRIBUTE_NORETURN.
        (fatal_insn_not_found, fatal_insn, really_sorry,
        push_float_handler, pop_float_handler): Add prototypes.
        (fancy_abort): Mark prototype with ATTRIBUTE_NORETURN.
        (do_abort, botch): Add prototypes.
        
Sat Sep  6 12:05:18 1998  John Carr  <jfc@mit.edu>

        * final.c (final): If a label is reached only from a single jump,
        call NOTICE_UPDATE_CC on the jump and its predecessor before
        emitting the insn after the label.
        
        * i386.h: Add AMD K6 support.
        Change TARGET_* macros to use table lookup.
        (INITIALIZE_TRAMPOLINE): Improve trampoline code.
        (ADJUST_COST): Change definition to call function in i386.c.
        (ISSUE_RATE): Define as 2 for anything newer than an 80486.
        * i386.c: Add AMD K6 support.
        Add constants for feature tests used by TARGET_* macros.
        (split_di): If before reload, call gen_lowpart and gen_highpart.
        (x86_adjust_cost): New function.
        (put_jump_code): New function.
        (print_operand): New codes 'D' and 'd'.
        * i386.md: New insn types.  New insn attribute "memory".
        Redefine scheduling parameters to use new types and add AMD K6
        support.  Explicitly set type of most insns.
        (move insns): K6 prefers movl $0,reg to xorl reg,reg.  Pentium
        Pro and K6 prefer movl $1,reg to incl reg.
        (adddi3, subdi3): Set cc_status.
        (DImode shift patterns): Change label counters from HOST_WIDE_INT
        to int; x86 can't have more than 2^31 DImode shifts per file.
        (setcc): Combine all setcc patterns.  Allow writing memory.
        Combine all jump patterns using match_operator.
        (*bzero): Name pattern.  Emit mutliple stos instructions when that
        is faster than rep stos.
        (xordi3, anddi3, iordi3): Simplify DImode logical patterns and
        add define_split.

Sun Sep  6 11:17:20 1998  Dave Love  <d.love@dl.ac.uk>

        * config/m68k/x-next (BOOT_LDFLAGS): Define suitably for f771
        linking.

Sat Sep  5 22:05:25 1998  Richard Henderson  <rth@cygnus.com>

        * alpha.c (alpha_ra_ever_killed): Inspect the topmost sequence,
        not whatever we're generating now.

        * alpha.c (set_frame_related_p, FRP): New.
        (alpha_expand_prologue): Mark frame related insns.
        (alpha_expand_epilogue): Likewise, but with a null FRP.
        * alpha.h (INCOMING_RETURN_ADDR_RTX): New.
        * alpha.md (exception_receiver): New.
        * alpha/crtbegin.asm (.eh_frame): New beginning.
        (__do_frame_setup, __do_frame_takedown): New.
        * alpha/crtend.asm (.eh_frame): New ending.
        * alpha/elf.h (DWARF2_DEBUGGING_INFO): Define.
        (ASM_SPEC): Don't emit both dwarf2 and mdebug.
        (ASM_FILE_START): Don't emit .file for dwarf2.

        * rtl.h (enum reg_note): Add REG_FRAME_RELATED_EXPR.
        * rtl.c (reg_note_name): Likewise.
        * rtl.texi (REG_NOTES): Likewise.
        * dwarf2out.c (dwarf2out_frame_debug): Use it.  Recognize a store
        without an offset.

Sat Sep  5 14:47:17 1998  Richard Henderson  <rth@cygnus.com>

        * i386.h (PREFERRED_RELOAD_CLASS): Standard fp constants load to TOS.
        * i386.md (movsf, movdf, movxf): Validate memory address returned
        from force_const_mem.  Kill useless REG_EQUAL setting code.

Sat Sep  5 14:23:31 1998  Torbjorn Granlund <tege@matematik.su.se>

        * m68k.md (zero_extendsidi2): Fix typo.

Sat Sep  5 13:40:24 1998  Krister Walfridsson  <cato@df.lth.se>

        * configure.in: Removed references to the removed file
        * config/xm-netbsd.h. Use ${cpu_type}/xm-netbsd.h for
        * arm*-*-netbsd* and ns32k-*-netbsd*.
        * config/i386/xm-netbsd.h: Removed unnecessary file.
        * config/m68k/xm-netbsd.h: Likewise.
        * config/sparc/xm-netbsd.h: Likewise.
        * config/mips/xm-netbsd.h: Likewise.

Sat Aug 29 13:32:58 1998  Mumit Khan  <khan@xraylith.wisc.edu>

        * i386/cygwin32.h (BIGGEST_ALIGNMENT): Define.
        (PCC_BITFIELD_TYPE_MATTERS): Define to be 0.

        * i386/cygwin32.h (ASM_OUTPUT_SECTION_NAME): Don't check for
        for exact section attributions.

        * i386/mingw32.h (CPP_PREDEFINES): Add __MSVCRT__ for msvc
        runtime.
        * i386/crtdll.h (CPP_PREDEFINES): Define.

Sat Sep  5 03:23:05 1998  Jeffrey A Law  (law@cygnus.com)

        * m68k.md (5200 movqi): Do not allow byte sized memory references
        using address regs.
        * m68k.c (output_move_qimode): Do not use byte sized operations on
        address registers.

        * Makefile.in (pexecute.o): Use pexecute.c from libiberty.  Provide
        explicit rules for building.  Similarly for alloca, vfprintf,
        choose-temp and mkstemp, getopt, getopt1, and obstack.
        (INCLUDES): Add $(srcdir)/../include.
        * pexecute.c, alloca.c, vfprintf.c, choose-temp.c, mkstemp.c: Delete.
        * getopt.h, getopt.c getopt1.c, obstack.c, obstack.h: Likewise.

Fri Sep  4 11:57:50 1998  Tom Tromey  <tromey@cygnus.com>

        * gcc.c (do_spec_1): [case 'o'] Account for
        lang_specific_extra_outfiles.
        (main): Correctly clear all slots in outfiles for
        lang_specific_extra_outfiles.  Set input_file_number before
        calling lang_specific_pre_link.

Fri Sep  4 10:37:07 1998  Jim Wilson  <wilson@cygnus.com>

        * loop.c (load_mems): Fix JUMP_LABEL field after for_each_rtx call.

Fri Sep  4 02:01:05 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * config/sparc/sparc.c (output_double_int): In all V9 symbolic
        cases, use xword.
        (sparc_output_deferred_case_vectors): If no work to do, return.
        Fix thinko in Sept 1 change.

1998-09-03  SL Baur  <steve@altair.xemacs.org>

        * Makefile.in: add semicolon in BISON definition for portability.

Thu Sep  3 13:34:41 1998  Toon Moene  <toon@moene.indiv.nluug.nl>

        * config/nextstep.c (handle_pragma): Correct name of third
        argument.

Tue Sep  1 11:30:33 1998  Nick Clifton  <nickc@cygnus.com>

        * config/m32r/m32r.md: Change (reg:CC 17) to (reg:SI 17).
        * config/m32r/m32r.h: Make register 17 be fixed.
        * config/m32r/m32r.c: Use SImode for cc operations.

Thu Sep  3 18:17:34 1998 Benjamin Kosnik  <bkoz@cygnus.com>

        * invoke.texi (Warning Options): Add -Wnon-template-friend
        documentation.

Thu Sep  3 18:16:16 1998  Michael Meissner  <meissner@cygnus.com>

        * rs6000.c (rs6000_override_options): Add -mcpu={401,e603e}.

Thu Sep  3 18:05:16 1998  David Edelsohn  <edelsohn@mhpcc.edu>

        * rs6000.md (movsf): Disable explicit secondary-reload-like
        functionality if TARGET_POWERPC64.
        (movdf): Remove TARGET_POWERPC64 explicit secondary-reload-like
        functionality.

Thu Sep  3 11:41:40 1998  Robert Lipe   <robertl@dgii.com>

        * fixinc.sco: Borrow code to wrap 'bool' typedefs from tinfo.h
        and term.h from fixinc.wrap.

Thu Sep  3 09:47:31 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * aclocal.m4 (GCC_HEADER_STRING): New macro to detect if it is
        safe to include both string.h and strings.h together.
        (GCC_NEED_DECLARATION): Test STRING_WITH_STRINGS when deciding
        which headers to search for function declarations.  Continue to
        prefer string.h over strings.h when both are not acceptable.

        * acconfig.h (STRING_WITH_STRINGS): Add stub.

        * configure.in: Call GCC_HEADER_STRING.

        * system.h: Test STRING_WITH_STRINGS when deciding which headers
        to include.  Continue to prefer string.h over strings.h when both
        are not acceptable.

Wed Sep  2 23:56:29 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * config/sparc/sparc.c (output_double_int): If V9 and MEDLOW, do
        not assume top 32-bits of symbolic addresses are zero if
        flag_pic.

Thu Sep  3 00:23:21 1998  Richard Henderson  <rth@cygnus.com>

        * ginclude/va-alpha.h: Protect entire second portion of the
        file against double inclusion.

Thu Sep  3 00:37:55 1998  Ovidiu Predescu  <ovidiu@aracnet.com>

        Added support for the Boehm's garbage collector.
        * configure.in: Handle --enable-objc-gc.
        * configure: Rebuilt.
        * Makefile.in (CHECK_TARGETS): Add check-objc.
        (check-objc): New rule.
        * objc/Make-lang.in: Build a different Objective-C library that
        runs with the Boehm's collector.
        * objc/encoding.c (objc_round_acc_size_for_types): New function.
        * objc/encoding.c: Correctly compute the size of compound types in
        the presence of bitfields. Skip the variable name of the type if
        any. Added support for long long.
        * objc/encoding.h (_C_GCINVISIBLE): New specifier.
        (_F_GCINVISIBLE): New mask.
        * objc/gc.c: New file. Compute the type memory mask associated with
        a class based on the runtime information.
        * objc/misc.c: Added the hooks that use the Boehm's collector
        allocation functions.
        * objc/objc-act.c (build_class_template): Generate a new class
        member (gc_object_type) to hold the class' type memory mask.
        (build_shared_structure_initializer): Initialize the new member to
        NULL.
        (encode_complete_bitfield): New function. Generate the new
        encoding.
        (encode_field_decl): Generate the new encoding only for the GNU
        runtime.
        * objc/objc-api.h (_C_LNG_LNG, _C_ULNG_LNG): New specifiers for the
        long long types.
        (class_get_gc_object_type): New function to mark a pointer instance
        variable as a weak pointer.
        * objc/objc-features.texi: New file.
        * objc/objc.h (gc_object_type): New class member.
        * objc/objects.c (class_create_instance): Create a typed memory
        object when compiled with Boehm's collector support.
        * objc/sendmsg.c (__objc_init_install_dtable): Call
        __objc_send_initialize instead of setting the initialize flag.
        (__objc_send_initialize): Call __objc_generate_gc_type_description
        to generate the class type memory mask. Rewrite the code that
        sends the +initialize so that it is called only once (bug report
        and fix from Ronald Pijnacker <Ronald.Pijnacker@best.ms.philips.com>).
        * testsuite/objc: New testsuite for Objective-C type encoding.
        * testsuite/lib/objc-torture.exp: New file.
        * testsuite/lib/objc.exp: New file.

Wed Sep  2 14:47:36 1998  Jim Wilson  <wilson@cygnus.com>

        * jump.c (jump_optimize): In if/then/else transformations, add
        another call to modified_between_p for the jump insn.

Wed Sep  2 14:16:49 1998  Jeffrey A Law  (law@cygnus.com)

        * fix-header.c (symlink): Treat like readlink.

Wed Sep  2 19:30:06 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * dwarfout.c (fundamental_type_code): Encode 32 bit floats/doubles
        as FT_float.

Wed Sep  2 10:06:07 1998  Nick Clifton  <nickc@cygnus.com>

        * config/nextstep.h:    Update HANDLE_PRAGMA macro.
        * config/h8300/h8300.h: Update HANDLE_PRAGMA macro.
        * config/i960/i960.h:   Update HANDLE_PRAGMA macro.
        
        * config/nextstep.c (handle_pragma): Take three arguments, as per
        the new HANDLE_PRAGMA macro specification.
        * config/h8300/h8300.c (handle_pragma): Take three arguments, as
        per the new HANDLE_PRAGMA macro specification.
        * config/i960/i960.c (process_pragma): Take three arguments, as
        per the new HANDLE_PRAGMA macro specification.

Wed Sep  2 09:25:29 1998  Nick Clifton  <nickc@cygnus.com>

        * c-lex.c (check_newline):  Call HANDLE_PRAGMA before
        HANDLE_SYSV_PRAGMA if both are defined.  Generate warning messages
        if unknown pragmas are encountered.
        (handle_sysv_pragma): Interpret return code from
        handle_pragma_token ().  Return success/failure indication rather
        than next unprocessed character. 
        (pragma_getc): New function: retrieves characters from the
        input stream.  Defined when HANDLE_PRAGMA is enabled.
        (pragma_ungetc): New function: replaces characters back into the
        input stream.  Defined when HANDLE_PRAGMA is enabled.
        
        * c-pragma.c (handle_pragma_token): Return success/failure status
        of the parse.
        
        * c-pragma.h: Change prototype of handle_pragma_token().

        * varasm.c: (handle_pragma_weak): Only create this function if
        HANDLE_PRAGMA_WEAK is defined.

        * c-common,c (decl_attributes): If defined call the expression
        contained within the INSERT_ATTRIBUTES macro before adding
        attributes to a decl.

        * tm.texi (HANDLE_PRAGMA): Document the new verion of
        HANDLE_PRAGMA, which takes three arguments.
        (INSERT_ATTRIBUTES): Document this new macro.  

        * LANGUAGES: Document the new version of HANDLE_PRAGMA and the
        new INSERT_ATTRIBUTES macro.

Wed Sep  2 02:03:23 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * config/sparc/sparc.md (movdf): Only generate special RTL for
        LABEL_REFs when PIC.
        (move_label_di): Remove
        (movdi_pic_label_ref, movdi_high_pic_label_ref,
        movdi_lo_sum_pic_label_ref): New patterns for 64-bit label
        references when PIC.
        * config/sparc/sparc.h (ASM_OUTPUT_ADDR_VEC_ELT,
        ASM_OUTPUT_ADDR_DIFF_ELT): Don't do anything special for MEDLOW,
        output an .xword for all 64-bit cases.
        
Tue Sep  1 15:55:17 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * config/sparc/sparc.c (finalize_pic): Don't output arbitrary
        alignment, use FUNCTION_BOUNDARY instead.
        (sparc_output_deferred_case_vectors): Likewise.

Mon Aug 31 17:25:41 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * config/sparc/sparc.md (movsf_const_intreg): Kill warning.
        (movtf_insn_sp64, movtf_no_e_insn_sp64): Reorder alternatives.

Mon Aug 31 13:57:55 1998  Richard Henderson  <rth@cygnus.com>

        * alpha/va_list.h: New file.
        * alpha/x-alpha (EXTRA_HEADERS): New.  Add va_list.h.

Mon Aug 31 14:55:02 1998  Jeffrey A Law  (law@cygnus.com)

        * NEWS: Add SCO Openserver and Unixware 7 notes.

        * NEWS: Fix typos.

Mon Aug 31 15:42:18 1998  Dave Brolley  <brolley@cygnus.com>

        * varasm.c (compare_constant_1): Handle RANGE_EXPR.
        (record_constant_1): Handle RANGE_EXPR.

Mon Aug 31 10:54:03 1998  Richard Henderson  <rth@cygnus.com>

        * print-rtl.c (print_rtx): NOTE_INSN_LIVE has an rtx not a bitmap.
        * haifa-sched.c (sched_analyze): Handle NOTE_INSN_RANGE_START
        and NOTE_INSN_RANGE_END specially.
        (reemit_notes): Likewise.

Mon Aug 31 10:18:52 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * sparc.c (TMASK, UMASK): Use `(unsigned)1' not `1U'.
        (ultrasparc_sched_init): Remove unneeded &.

Mon Aug 31 10:47:16 1998  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

        * config/m68k/m68k.h (TARGET_SWITCHES): Don't remove MASK_68040
        for m68020-60, to prevent the use of fintrz.

Sun Aug 30 22:17:20 1998  Mark Mitchell  <mark@markmitchell.com>

        * configure.in: If the native compiler is GCC use $(WARN_CFLAGS) 
        even in stage1. 
        * Makefile.in: Likewise.
        * configure: Regenerated.

Sun Aug 30 22:15:41 1998  H.J. Lu  (hjl@gnu.org)

        * configure.in (gxx_include_dir): Changed to
        '${prefix}/include/g++'-${libstdcxx_interface}.
        * configure: Rebuilt.

Sun Aug 30 20:19:43 1998  Hans-Peter Nilsson  <hp@axis.se>

        * expr.c (expand_expr): Change ">" to ">=" making MOVE_RATIO use
        consistent.
        * tm.texi (Costs): Say MOVE_RATIO is number of mem-mem move
        *sequences* *below* which scalar moves will be used.

Sun Aug 30 17:18:43 1998  Jeffrey A Law  (law@cygnus.com)

        * collect2.c (mktemp): Delete unused declaration.

        * config/xm-netbsd.h: Remove unnecessary file.
        * config/*/xm-netbsd.h: Do not include the generic xm-netbsd.h
        file anymore, it is not needed.

Sun Aug 30 16:05:45 1998  Mark Mitchell  <mark@markmitchell.com>

        * convert.c (convert_to_integer): Issue an error on conversions to
        incomplete types.

Sun Aug 30 16:47:20 1998  Martin von Lvwis  <loewis@informatik.hu-berlin.de>

        * Makefile.in: Add lang_tree_files and gencheck.h.
        * configure.in: Generate them.
        * gencheck.c: Include gencheck.h.

Sat Aug 29 21:38:24 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * config/sparc/sparc.md (pic_lo_sum_di, pic_sethi_di): Rename to
        movdi_lo_sum_pic and movdi_high_pic and make visible.
        * config/sparc/sparc.c (legitimize_pic_address): For -fPIC,
        emit these when Pmode is not SImode.
        * config/sparc/linux64.h (SPARC_DEFAULT_CMODEL): Make CM_MEDLOW.

Sat Aug 29 14:59:32 1998  Mumit Khan  <khan@xraylith.wisc.edu>

        * i386/cygwin32.h (ASM_OUTPUT_SECTION_NAME): Don't emit
        .linkonce directive after the first time.

Sat Aug 29 12:39:56 1998  Jeffrey A Law  (law@cygnus.com)

        * m68k.md (beq0_di): Generate correct (and more efficient) code when
        the clobbered operand overlaps with an input.
        (bne0_di): Similarly.

        * Makefile.in (INSTALL): Remove "--no-header" argument.

        * NEWS: Various updates.

Fri Aug 28 19:00:44 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * config/sparc/sparc.c (arith_operand, const64_operand,
        const64_high_operand, arith_double_4096_operand): Mark mode as
        unused.
        (create_simple_focus_bits): Remove unused arg highest_bit_set, all
        callers changed.
        (sparc_emit_set_const64): Remove unused variable i.
        (sparc_splitdi_legitimate): Likewise for addr_part.
        (ultra_code_from_mask): Likewise for mask.
        (ultra_cmove_results_ready_p): Fixup entry modulo calc. and
        reverse return values so it matches usage and comments.
        (ultra_flush_pipeline): Likewise.
        (ultra_fpmode_conflict_exists): Likewise, remove unused variable
        this_type, and allow loads and stores of differing FP modes as
        they do not create a conflict.
        (ultra_find_type): Initialize fpmode to SFmode, fix
        parenthesization thinkos in large conditional.
        (ultrasparc_sched_init): Mark dump and sched_verbose as unused.
        Init free_slot_mask after ultra_cur_hist is reset, not before.
        (ultrasparc_rescan_pipeline_state): Remove unused variable ucode.
        (ultrasparc_sched_reorder): Don't bzero current pipeline state,
        use ultra_flush_pipeline instead, then re-init group pointer.
        Fix statement with no effect.  If no progress made in, and no
        instructions scheduled at all, advance to new pipeline cycle else
        we get into an endless loop.
        (ultrasparc_adjust_cost): Remove previous arg.
        * config/sparc/sparc.h (ADJUST_COST): Update to reflect that.
        
Fri Aug 28 13:52:35 1998  Jim Wilson  <wilson@cygnus.com>

        * sparc.md (DImode, DFmode, TFmode splits): Delete self_reference
        code.  Use reg_overlap_mentioned_p to detect when source and
        destination overlap.
        (negtf2_notv9+1): Use DFmode instead of SFmode in last two operands.

1998-08-28  Brendan Kehoe  <brendan@cygnus.com>

        * loop.c (check_dbra_loop): Pass COMPARISON_VALUE, not
        COMPARISON_VAL, into invariant_p.

Fri Aug 28 15:13:25 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * regmove.c (regclass_compatible_p): New function.
        (regmove_optimize): Use it.

        Use NREGS parameter insted of calling max_reg_num.

        (fixup_match_1): Don't use code = MINUS when later tieing with
        a hard register is likely.

Fri Aug 28 14:54:07 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * loop.c (check_dbra_loop): Fix calculation of FINAL_VALUE when
        COMPARISON_VAL was normalized.

Thu Aug 27 20:10:46 1998  Jeffrey A Law  (law@cygnus.com)

        * loop.c (check_dbra_loop): The loop ending comparison value
        must be an invariant or we can not reverse the loop.

        * loop.c (scan_loop): Count down from max_reg_num - 1 to
        FIRST_PSEUDO_REGISTER to avoid calling max_reg_num each iteration
        of the loop.
        (load_mems_and_recount_loop_regs_set): Likewise.

        * i386.c (print_operand): Remove obsolete 'c' docs.

Wed Aug 26 17:13:37 1998  Tom Tromey  <tromey@cygnus.com>

        * gthr.h: Document __GTHREAD_MUTEX_INIT_FUNCTION.
        * frame.c (init_object_mutex): New function.
        (init_object_mutex_once): Likewise.
        (find_fde): Call it.
        (__register_frame_info): Likewise.
        (__register_frame_info_table): Likewise.
        (__deregister_frame_info): Likewise.

Thu Aug 27 15:14:18 1998  Jeffrey A Law  (law@cygnus.com)

        * haifa-sched.c (sched_analyze_insn): Fix thinko in last change.

Thu Aug 27 16:34:51 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * loop.c (check_dbra_loop): Enable code for reversal
        of some loops without a known constant loop end.

Wed Aug 26 18:38:15 1998  Richard Henderson  <rth@cygnus.com>

        * haifa-sched.c (last_clock_var): New.
        (schedule_block): Initialize it.
        (schedule_insn): Use it to fill insn modes with issue information.

        * alpha.c (alpha_handle_trap_shadows): Remove do-nothing exit.
        Tag trapb and next insn with TImode.
        (alphaev5_insn_pipe, alphaev5_next_group, alphaev5_align_insns): New.
        (alpha_reorg): Add conditional for alpha_handle_trap_shadows.
        Invoke alphaev5_align_insns as appropriate.
        * alpha.h (LABEL_ALIGN_AFTER_BARRIER): Was ALIGN_LABEL_AFTER_BARRIER.
        (MD_SCHED_VARIABLE_ISSUE): New.
        * alpha.md (attr type): Add multi.
        (define_asm_attributes): New.
        (prologue_stack_probe_loop, builtin_setjmp_receiver): Set type multi.
        (arg_home): Likewise.
        (fnop, unop, realign): New.

Wed Aug 26 15:55:41 1998  Jim Wilson  <wilson@cygnus.com>

        * iris5.h (PREFERRED_DEBUGGING_TYPE): Undef.
        * iris5gas.h (PREFERRED_DEBUGGING_TYPE): Define.

        * configure.in (powerpc-ibm-aix4.[12]*): Change from 4.[12].*.
        (rs6000-ibm-aix4.[12]*): Likewise.
        * configure: Regnerate.

Wed Aug 26 09:30:59 1998  Nick Clifton  <nickc@cygnus.com>

        * config/arm/thumb.c (thumb_exit): Do not move a4 into lr if it
        already contains the return address.

Wed Aug 26 12:57:09 1998  Jeffrey A Law  (law@cygnus.com)

        * calls.c (expand_call): Use bitfield instructions to extract/deposit
        word sized hunks when loading unaligned args into registers.

        * haifa-sched.c (sched_analyze_insn): Only create scheduling
        barriers for LOOP, EH and SETJMP notes on the loop_notes list.

        * mn10300.h (RTX_COSTS): Handle UDIV and UMOD too.

Wed Aug 26 16:35:37 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * loop.c (check_dbra_loop): Add some code that would allow reversal
        of some loops without a known constant loop end if it were enabled.

Wed Aug 26 11:08:44 1998  Gavin Romig-Koch  <gavin@cygnus.com>

        * mips.md (lshrsi3_internal2+2): Fix type-o.

Wed Aug 26 10:53:03 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * system.h: Include stdarg.h/varargs.h, make sure they are ordered
        correctly with regards to stdio.h.
        
        * calls.c: Remove stdarg.h/varargs.h.
        * cccp.c: Likewise.
        * cexp.y: Likewise.
        * combine.c: Likewise.
        * cpperror.c: Likewise.
        * cpplib.c: Likewise.
        * cpplib.h: Likewise.
        * doprint.c: Likewise.
        * emit-rtl.c: Likewise.
        * final.c: Likewise.
        * fix-header.c: Likewise.
        * gcc.c: Likewise.
        * genattr.c: Likewise.
        * genattrtab.c: Likewise.
        * gencodes.c: Likewise.
        * genconfig.c: Likewise.
        * genemit.c: Likewise.
        * genextract.c: Likewise.
        * genflags.c: Likewise.
        * genopinit.c: Likewise.
        * genoutput.c: Likewise.
        * genpeep.c: Likewise.
        * genrecog.c: Likewise.
        * mips-tfile.c: Likewise.
        * prefix.c: Likewise.
        * protoize.c: Likewise.
        * regmove.c: Likewise.
        * toplev.c: Likewise.
        * tree.c: Likewise.

Wed Aug 26 05:09:27 1998  Jakub Jelinek  <jj@sunsite.ms.mff.cuni.cz>

        * config/sparc/sparc.c (sparc_override_options): If not
        TARGET_FPU, turn off TARGET_VIS.
        * config/sparc/sparc.h (TARGET_SWITCHES): Add no-vis.
        (LEGITIMATE_CONSTANT_P): Allow SF/DF mode zero when TARGET_VIS.
        * config/sparc/sparc.md (movsi_insn): Use fzeros not fzero.
        (movdi_insn_sp64): Add VIS fzero alternative.
        (clear_sf, clear_df): New VIS patterns.
        (movsf, movdf expanders): Allow fp_zero_operand flat out when
        TARGET_VIS.
        (one_cmpldi2_sp64): Provide new fnot1 VIS alternative.
        
Tue Aug 25 10:57:41 1998  Mark Mitchell  <mark@markmitchell.com>

        * loop.c (n_times_set, n_times_used, may_not_optimize,
        reg_single_usage): Convert to varrays.  All uses changed.
        (insert_loop_mem): Return a value.
        (scan_loop): Tweak AVOID_CC_MODE_COPIES code.
        (load_mems_and_recount_loop_regs_set): Likewise.  Grow the arrays, if
        necessary.

Tue Aug 25 23:57:12 1998  Jeffrey A Law  (law@cygnus.com)

        * From Alexandre:
        * configure.in: Do not set thread_file to "irix" since no such
        support exists yet.

        * sparc.md (float abs/neg splits): Check reload_completed before
        calling alter_subreg.

Tue Aug 25 19:17:59 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * config/sparc/sparc.c (sparc_absnegfloat_split_legitimate): New
        function.
        * config/sparc/sparc.h: Declare it.
        * config/sparc/sparc.md (float abs/neg splits): Use it.
        (all other splits): Handle SUBREGs properly where necessary.
        (unnamed (1<<x)-1 V8PLUS pattern): Disable for now.

Tue Aug 25 19:48:46 1998  Jeffrey A Law  (law@cygnus.com)

        * reorg.c (fill_simple_delay_slots): Do not abort if we encounter
        an insn on the unfilled_slots_list that has no delay slots.
        (fill_eager_delay_slots): Similarly.

Tue Aug 25 13:35:20 1998  Nick Clifton  <nickc@cygnus.com>

        * config/v850/v850.c (movsi_source_operand): Treat CONSTANT_P_RTX
        as an ordinary operand.

Tue Aug 25 12:54:57 1998  Jason Merrill  <jason@yorick.cygnus.com>

        * tree.c (valid_machine_attribute): Don't apply attributes to both
        decl and type.

Tue Aug 25 12:23:20 PDT 1998  Richard Henderson  <rth@cygnus.com>

        * reload.c (operands_match_p): Handle rtvecs.

        * i386.c (legitimate_pic_address_disp_p): New.
        (legitimate_address_p): Use it.
        (legitimize_pic_address): Use unspecs to represent @GOT and @GOTOFF.
        Handle constant pool symbols just like statics.
        (emit_pic_move): Use Pmode not SImode for clarity.
        (output_pic_addr_const) [SYMBOL_REF]: Remove @GOT and @GOTOFF hacks.
        [UNSPEC]: New, handling what we killed above.
        [PLUS]: Detect and abort on invalid symbol arithmetic.
        * i386.h (CONSTANT_ADDRESS_P): Remove HIGH.

Tue Aug 25 12:02:23 1998  Mark Mitchell  <mark@markmitchell.com>

        * alias.c: Include output.h.
        (DIFFERENT_ALIAS_SETS_P): Don't treat alias sets as
        different if we're in a varargs function.
        * Makefile.in (alias.o): Depend on output.h
        
Tue Aug 25 19:20:12 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * sh.h (GIV_SORT_CRITERION): Delete.

Tue Aug 25 13:19:46 1998  Dave Brolley  <brolley@cygnus.com>

        * regclass.c (regclass): Use xmalloc/free instead of alloca.
        * stupid.c (stupid_life_analysis): Ditto.
        * reload1.c (reload): Ditto.

Tue Aug 25 05:48:18 1998  Jakub Jelinek  <jj@sunsite.ms.mff.cuni.cz>

        * config/sparc/sparc.c (arith_4096_operand, arith_add_operand,
        arith_double_4096_operand, arith_double_add_operand): New
        predicates.
        * config/sparc/sparc.h (PREDICATE_CODES): Add them, declare them.
        * config/sparc/sparc.md (adddi3, addsi3, subdi3, subsi3): Use
        them to transform add/sub 4096 into add/sub -4096.

Mon Aug 24 23:31:03 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * loop.c (scan_loop): Allocate some slop to handle pseudos
        generated by move_movables.
        (load_mems_and_recount_loop_regs_set): Honor AVOID_CC_MODE_COPIES
        here too.

Mon Aug 24 19:45:40 1998  Jim Wilson  <wilson@cygnus.com>

        * tree.def (DECL_RESULT): Correct documentation.

Tue Aug 25 01:15:27 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * reload1.c (reload_reg_free_before_p): New argument EQUIV;  Changed
        all callers.  Abort for RELOAD_FOR_INSN.  RELOAD_FOR_OUTADDR_ADDR:
        conflicts will all RELOAD_FOR_OUTPUT reloads.

        * reload1.c (reload_cse_regs_1): When deleting a no-op move that
        loads the function result, substitute with a USE.

Mon Aug 24 15:20:19 1998  David Edelsohn  <edelsohn@mhpcc.edu>

        * rs6000.h (GO_IF_LEGITIMATE_ADDRESS): Use TARGET_POWERPC64
        when testing LEGITIMATE_INDEXED_ADDRESS_P DFmode and DImode.
        (LEGITIMIZE_ADDRESS): Use TARGET_POWERPC64 for INDEXED fixup.
        * rs6000.c (print_operand, case 'L'): Add UNITS_PER_WORD, not 4.
        (print_operand, cases 'O' and 'T'): Fix typos in lossage strings.
        * rs6000.md (fix_truncdfsi2_store): Remove %w from non-CONST_INT
        operand. 
        (movdf_softfloat32, movdf_hardfloat64, movdf_softfloat64): Change
        'o' to 'm' for GPR variant constraints.

Mon Aug 24 10:25:46 1998  Jeffrey A Law  (law@cygnus.com)

        * loop.c (scan_loop): Honor AVOID_CC_MODE_COPIES.

        * h8300.h (STRIP_NAME_ENCODING): Fix typo.

        * sparc.md (TFmode splits): Use reg_overlap_mentioned_p to detect
        when the source and destination overlap.

        * stmt.c (emit_case_nodes): Change rtx_function to rtx_fn to avoid
        clash with global type.

Mon Aug 24 00:53:53 1998  Jason Merrill  <jason@yorick.cygnus.com>

        * fixinc.irix: Add curses.h handling from fixinc.wrap.

        * c-common.c (combine_strings): Also set TREE_READONLY.
        Change warn_write_strings to flag_const_strings.
        * c-decl.c, c-tree.h: Likewise.

Sun Aug 23 18:39:11 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * config/sparc/sparc.c (sparc_emit_set_const32): If outputting a
        CONST_INT, not a symbolic reference, don't use a HIGH/LO_SUM
        sequence, use SET/IOR instead so CSE can see it.
        * config/sparc/sparc.md (movhi_const64_special,
        movsi_const64_special): New patterns necessitated by that change.
        (movhi_high): Remove.
        (movhi_lo_sum): Change to match an IOR.
        (movdf_insn_sp32): Test TARGET_V9 not TARGET_ARCH64.
        (movdf_insn_v9only): New pattern for when V9 but not ARCH64.
        (movdf_insn_sp64): Test both TARGET_V9 and TARGET_ARCH64.
        (movdf splits): Allow when not V9 or when not ARCH64 and integer
        registers are involved.
        (snesi_zero_extend split): Remove reload_completed test.
        (unnamed plus and minus zero_extend sidi splits): Add it.

Sun Aug 23 11:56:08 1998  Mark Mitchell  <mark@markmitchell.com>

        * extend.texi: Remove description of extension to explicit
        instantiation that is now endorsed by standard C++.

Sun Aug 23 09:39:09 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * config/arc/arc.c (arc_initialize_pic): Remove.
        * config/arc/arc.h (INITIALIZE_PIC): Similarly, this routine does
        nothing on any platform and is invoked by no-one, it does not even
        appear in the documentation.
        * config/sparc/sparc.h (INITIALIZE_PIC): Likewise.
        * config/sparc/sparc.c (initialize_pic): Likewise.
        (find_addr_reg): Remove this as well, no longer referenced after
        my rewrite.

Sun Aug 23 00:17:14 1998  Jeffrey A Law  (law@cygnus.com)

        * recog.c (validate_replace_rtx_group): New function.
        * recog.h (validate_replace_rtx_group): Declare it.
        * regmove.c (optimize_reg_copy_3): If any substitution fails, then undo
        the entire group of substitutions.

Sat Aug 22 23:31:00 1998  Klaus-Georg Adams  (Klaus-Georg.Adams@chemie.uni-karlsruhe.de)

        * loop.c (load_mems): Fix initializers.

Fri Aug 21 23:07:46 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * config/sparc/sparc.md (TFmode splits): Handle destination
        registers being referenced in the address correctly.

        * expmed.c (make_tree) [CONST_INT]: Sign extend even if
        TREE_UNSIGNED, when bitsize of type's mode is larger than
        HOST_BITS_PER_WIDE_INT.

Fri Aug 21 19:31:31 1998  Alexandre Petit-Bianco <apbianco@cygnus.com>

        * tree.def (LABELED_BLOCK_EXPR, EXIT_BLOCK_EXPR): New tree nodes.
        * tree.h (LABELED_BLOCK_LABEL, LABELED_BLOCK_BODY,
        EXIT_BLOCK_LABELED_BLOCK, EXIT_BLOCK_RETURN, LOOP_EXPR_BODY): New
        macros.
        * expr.c (expand_expr): Handle LABELED_BLOCK_EXPR and
        EXIT_BLOCK_EXPR.

Thu Aug 20 19:43:44 1998  Jeffrey A Law  (law@cygnus.com)

        * h8300.c (h8300_encode_label): Use '&' for tiny data items.
        * h8300.h (TINY_DATA_NAME_P): Likewise.
        (STRIP_NAME_ENCODING): Handle '&'.

        * mn10200.h (REG_OK_FOR_INDEX_P): Do not check the mode of the
        register (it could be accessed via an outer SUBREG).
        (REG_OK_FOR_BASE_P): Likewwise.
        (GO_IF_LEGITIMATE_ADDRESS): Consistently use REGNO_OK_FOR_BASE_P.

        * remove.c (optimize_reg_copy_3): Abort instead of silently generating
        bogus rtl.

        * jump.c (rtx_renumbered_equal_p): Do not consider PLUS commutative.

Thu Aug 20 17:35:20 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * config/sparc/sparc.md (movtf_insn_sp32): All memory operands
        must be offsettable so the splits can be made.

Thu Aug 20 13:56:53 1998  Michael Meissner  <meissner@cygnus.com>

        * config/i386/winnt.c: Include system.h, not stdio.h to get
        sys/param.h pulled in before rtl.h in case the system defines MIN
        and MAX.

Thu Aug 20 13:44:20 1998  David Edelsohn  <edelsohn@mhpcc.edu>

        * rs6000.md (movqi, movhi): Add CONSTANT_P_RTX.

Thu Aug 20 13:15:11 1998  Dave Brolley  <brolley@cygnus.com>

        * stor-layout.c (layout_type): Compute TYPE_SIZE_UNIT correctly for
        arrays of bits.
        * cpplib.c (cpp_define): Handle macros with parameters.

Wed Aug 19 21:33:19 1998  David Edelsohn  <edelsohn@mhpcc.edu>

        * rs6000.c (rs6000_output_load_toc_table): Use ld for 64-bit.
        (output_toc): Use single TOC slot or llong minimal-toc for DFmode
        and DImode 64-bit.  Use llong for minimal-toc SFmode and
        SYMBOL_REF / LABEL_REF 64-bit.
        (output_function_profiler): Use llong for profiler label and ld to
        load 64-bit label address.

Wed Aug 19 17:52:27 1998  Nick Clifton  (nickc@cygnus.com)

        * config/arm/thumb.md (extendqisi2_insn): Cope with REG +
        OFFSET addressing.

Wed Aug 19 14:13:31 PDT 1998 Jeff Law  (law@cygnus.com)

        * version.c: Bump for snapshot.

Wed Aug 19 13:10:30 PDT 1998 Jeff Law  (law@cygnus.com)

        * version.c: Bump for snapshot.

Wed Aug 19 13:06:47 1998  Jason Merrill  <jason@yorick.cygnus.com>

        * collect2.c (extract_init_priority): Use atoi instead of strtoul.

Wed Aug 19 13:51:35 1998  Hans-Peter Nilsson  <hp@axis.se>

        * tm.texi (Misc): Fix typo "teh".

        * tm.texi (PIC): Fix typo "PPIC".

        * tm.texi (Caller Saves): Say that DEFAULT_CALLER_SAVES has no
        effect when -O2 and higher.
        * invoke.texi (Optimize Options): Likewise for -fcaller-saves.

1998-08-19  Michael Hayes  <michaelh@ongaonga.chch.cri.nz>

        * regclass.c: Changed register set documentation to be consistent
        with GCC behaviour.

        * final.c (final_start_function) Removed redundant test for
        call_fixed_regs.

Wed Aug 19 13:28:41 1998  Mark Mitchell  <mark@markmitchell.com>

        * rtl.h (rtx_function): New type.
        (for_each_rtx): New function.
        * rtlanal.c (for_each_rtx): Define it.
        
        * recog.c (change_t): New type.
        (change_objects, change_old_codes, change_locs, change_olds):
        Replace with ...
        (changes): New variable.
        (validate_change): Dynamically allocate room for more changes, if
        necessary.  Uses changes array instead of change_objects, etc.
        (apply_change_group):  Use changes array instead of
        change_objects, etc.
        
        * loop.c (loop_mem_info): New type.
        (loop_mems): New variable.
        (loop_mems_idx): Likewise.
        (looop_mems_allocated): Likewise.
        (scan_loop): Remove nregs parameter.
        (next_insn_in_loop): New function.
        (load_mems_and_recount_loop_regs_set): Likewise.
        (load_mems): Likewise.
        (insert_loop_mem): Likewise.
        (replace_loop_mem): Likewise.
        (replace_label): Likewise.
        (INSN_IN_RANGE_P): New macro.
        (loop_optimize): Don't pass max_reg_num() to scan_loop.
        (scan_loop): Remove nregs parameter, compute it after any new
        registers are created by load_mems.  Use INSN_IN_RANGE_P and
        next_insn_in_loop rather than expanding them inline.  Call
        load_mems to load memory into pseudos, if appropriate.
        (prescan_loop): Figure out whether or not there are jumps from the
        loop to targets other than the label immediately following the
        loop.  Call insert_loop_mem to notice all the MEMs used in the
        loop, if it could be safe to pull MEMs into REGs for the duration
        of the loop.
        (strength_reduce): Use next_insn_in_loop.  Tweak comments.

Wed Aug 19 08:29:44 1998  Richard Earnshaw (rearnsha@arm.com)

        * arm.c (arm_override_options): Remove lie about ignoring PIC flag.

Wed Aug 19 07:08:15 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * config/sparc/sparc.c (finalize_pic): Check for the correct
        nonlocal_goto_receiver UNSPEC number.
        * config/sparc/sparc.md (nonlocal_goto_receiver): Add comment
        making note of this dependency existing in sparc.c
        (negtf2_notv9 split): Give NEG SFmode.
        (negsf2): Fix insn output string.
        
Tue Aug 18 12:40:27 1998  Richard Henderson  <rth@cygnus.com>

        * c-common.c (decl_attributes): Issue an error if the argument
        to alias is not a string.

Tue Aug 18 10:33:30 1998  Jeffrey A Law  (law@cygnus.com)

        * haifa-sched.c (sched_analyze): Put all JUMP_INSNs on the last
        pending memory flush list.

        * combine.c (can_combine_p): Allow combining insns with REG_RETVAL
        notes.
        (try_combine): Allow combining insns with REG_LIBCALL notes.

        * expr.c (emit_block_move): Do not call memcpy as a libcall
        instead build up a CALL_EXPR and call it like any other
        function.
        (clear_storage): Similarly for memset.

        * regmove.c (fixup_match_2): Do not call reg_overlap_mentioned_p
        on notes.

        * Makefile.in (cplus-dem.o): Provide explicit rules for building
        cplus-dem.o

        * regmove.c (optimize_reg_copy_1): Update REG_N_CALLS_CROSSED
        and REG_LIVE_LENGTH as successful substitutions are made.

Tue Aug 18 07:15:27 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * config/sparc/sparc.c (ultra_find_type): Add empty semicolon
        statement after end of loop label.

Tue Aug 18 07:13:27 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * config/sparc/sparc.c (ultra_types_avail): New variable.
        (ultra_build_types_avail): New function to record mask of insn
        types in ready list at this cycle.
        (ultrasparc_sched_reorder): Call it.
        (ultra_find_type): Use it to quicken the search.  Also simplif
        dependency check, don't use rtx_equal_p because we know exactly
        what we are looking for.

Tue Aug 18 03:20:53 1998  Richard Earnshaw  (rearnsha@arm.com)

        * arm.h (SECONDARY_INPUT_RELOAD_CLASS): Return NO_REGS if compiling
        for architecture v4.

Mon Aug 17 21:26:38 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * config/sparc/sparc.md (sltu, sgeu): Don't FAIL, call
        gen_compare_reg.
        (movsf_const_intreg, movsf_const_high, movsf_const_lo,
        movdf_const_intreg and helper splits): New patterns to move float
        constants into integer registers.
        (negtf2, negdf2, abstf2, absdf2): Rework using new patterns and
        splits.

Mon Aug 17 11:46:19 1998  Jeffrey A Law  (law@cygnus.com)

        * From Graham
        * tree.c (build_index_type): Copy TYPE_SIZE_UNIT from sizetype
        to itype.
        * c-decl.c (finish_enum): Copy TYPE_SIZ_UNIT from enumtype to tem.

        * rs6000.c (secondary_reload_class): For TARGET_ELF, indicate that
        a BASE_REGS register is needed as an intermediate when copying
        a symbolic value into any register class other than BASE_REGS.

        * expr.c (move_by_pieces): No longer static.  Remove prototype.
        * rtl.h (move_by_pieces): Add extern prototype.
        * mips.c (expand_block_move): Handle aligned straight line copy by
        calling move_by_pieces.

        * expr.c (expand_expr): Allow assignments from TImode PARM_DECLs
        and VAR_DECLs.

Mon Aug 17 10:28:52 1998  Mark Mitchell  <mark@markmitchell.com>

        * stmt.c (expand_end_loop): Tidy.  Allow unconditional
        jumps out of the loop to be treated as part of the exit test.

Mon Aug 17 10:06:11 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
                          Jeff Law <law@cygnus.com>

        * Makefile.in (cplus-dep.o): Use cplus-dem.c from libiberty.
        * cplus-dem.c: Delete.

        * Makefile.in (fold-const.o): depend on $(RTL_H).

        * fold-const.c: Include rtl.h to get the prototype for
        `set_identifier_local_value'.

        * loop.c (express_from_1): Remove unused variable `tmp'.
        (combine_givs): cast the first argument of bzero to char *.

        * toplev.c (display_help): Remove unused variable `looking_for_start'.

        * c-decl.c (init_decl_processing): Remove unneeded &.

        * alpha.h (alpha_initialize_trampoline): Provide prototype.
        
        * except.c (set_exception_lang_code, set_exception_version_code):
        Change parameter from `short' to `int' to avoid using a gcc
        extension.

        * except.h (set_exception_lang_code, set_exception_version_code):
        Likewise for prototypes.

        * flow.c (count_reg_references): Remove unused variables `regno'
        and `i'.

        * gcse.c (hash_scan_insn): Declare parameter `in_libcall_block'.

        * prefix.c (translate_name): Cast the result of `alloca'.

        * varray.h (VARRAY_FREE): Reimplement as a `do-while(0)' statement.

Mon Aug 17 09:23:42 1998  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

        * config/m68k/m68k.c: Include "system.h" instead of <stdio.h>.
        Include "toplev.h".
        (valid_dbcc_comparison_p): Mark mode argument as unused.
        (symbolic_operand): Likewise.
        (legitimize_pic_address): Likewise.
        (const_uint32_operand): Likewise.
        (const_sint32_operand): Likewise.
        * sched.c [!INSN_SCHEDULING]: Define only dummy function
        schedule_insns and comment out rest of file.

        * m68k.c (output_move_simode_const): Use subl to move a zero into an
        address register.
        (output_move_[hq]imode): Likewise.

Mon Aug 17 09:15:47 1998  Jeffrey A Law  (law@cygnus.com)

        * toplev.c (main): Enable -fstrict-aliasing for -O2 and above.
        * invoke.texi: Corresponding changes.

Mon Aug 17 02:03:55 1998  Richard Henderson  <rth@cygnus.com>

        * regclass.c (allocate_reg_info): Respect MIN when clearing data.

Sun Aug 16 17:37:06 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * config/sparc/sparc.c (ultra_code_from_mask,
        ultra_cmove_results_ready_p, ultra_fpmode_conflict_exists,
        ultra_find_type, ultra_schedule_insn, ultra_flush_pipeline,
        ultrasparc_sched_init, ultrasparc_variable_issue,
        ultra_rescan_pipeline_state, ultrasparc_sched_reorder): New
        functions to describe UltraSPARC pipeline exactly to Haifa.
        (ultrasparc_adjust_cost): Indicate IMUL type insns have zero cost,
        as there is nothing the scheduler can do about it.  Indicate that
        REG_DEP_OUTPUT's collide.  Fixup formatting.
        * config/sparc/sparc.h (RTX_COSTS): Fixup integer multiply and
        divide costs on Ultra for DImode.
        (MD_SCHED_INIT, MD_SCHED_REORDER, MD_SCHED_VARIABLE_ISSUE):
        Define.
        * config/sparc/sparc.md (ieu_unnamed function unit): Rename to
        ieuN and add call_no_delay_slot to type list.
        (cti function unit): New unit for branches on UltraSPARC.
        (subx/addx insns): Set type to misc.
        (sidi zero/sign extension insns on arch64): Set type to shift.
        (sign_extendhidi2_insn): Set type to sload.

Sun Aug 16 13:52:00 1998  David Edelsohn  <edelsohn@mhpcc.edu>

        * rs6000.c (rs6000_stack_info): Use if == 0 for sizes.
        (output_epilog): Use if != 0 for offset.
        (rs6000_fatal_bad_address): Prepare for Intl.
        * rs6000.h (rs6000_fatal_bad_address): Declare.
        * rs6000.md (movsfcc, movdfcc): Use else if.
        (elf_high): Use {liu|lis}.
        (elf_low): Use {cal|la}.  Remove %a template from old mnemonics.
        (movsi): Use rs6000_fatal_bad_address.
        
Sun Aug 16 01:53:21 1998  Richard Henderson  <rth@cygnus.com>

        * reload.c (find_equiv_reg): Reject equivalences separated
        by a volatile instruction.

Sun Aug 16 00:21:44 1998 Franz Sirl <Franz.Sirl-kernel@lauterbach.com>

        * rs6000/linux.h (CPP_OS_DEFAULT_SPEC): Define.

Sat Aug 15 20:51:35 1998  Richard Henderson  <rth@cygnus.com>

        * alpha.md (movsicc): Fix mode mismatch.

Sat Aug 15 20:22:33 1998  H.J. Lu  (hjl@gnu.org)

        * config/alpha/alpha.h (ASM_OUTPUT_MI_THUNK): Handle aggregated
        return type.
        * config/alpha/win-nt.h (ASM_OUTPUT_MI_THUNK): Likewise.

Sat Aug 15 08:39:49 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * config/sparc/sparc.md (movsi_lo_sum_pic_label_reg): Remove
        write-only modifier from operand 1 constraint.

Sat Aug 15 06:28:19 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * config/sparc/sparc.c (sparc_emit_set_const64_quick1): If
        emitting a XOR of -1 at the end, emit a NOT instead for combine's
        sake.
        (sparc_emit_set_const64): Likewise, also when computing trailing
        bits do not negate low_bits and make fast_int an int.

Fri Aug 14 21:07:03 1998  Jeffrey A Law  (law@cygnus.com)

        * loop.c (add_label_notes): Do not ignore references to labels
        before dispatch tables.  Mirrors Apr 8 change to mark_jump_label.
        * gcse.c (add_label_notes): Similarly.

        * pa.h (ASM_OUTPUT_MI_THUNK): Strip name encoding.

        * m68k.md (adddi_dilshr32): One of the operands must be a register.
        (adddi_dishl32): Similarly.

Fri Aug 14 14:12:59 1998  Jason Merrill  <jason@yorick.cygnus.com>

        * i386.h (MODES_TIEABLE_P): Reorganize to shut up warnings.
        * alias.c (memrefs_conflict_p): Add braces to shut up warnings.
        * cse.c (cse_basic_block): Add parens to shut up warnings.

Fri Aug 14 12:58:21 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * config/sparc/sparc.c (sparc_emit_set_const64_quick2,
        sparc_emit_set_const64_longway, const64_is_2insns,
        create_simple_focus_bits, sparc_emit_set_const64): Fix more bugs
        in 64-bit constant formation.
        * config/sparc/sparc.md (snesi_zero_extend split): Generate
        rtl for addx not subx.
        (define_insn movdi_const64_special): Make available even when
        HOST_BITS_PER_WIDE_INT is not 64.
        (movdi_lo_sum_sp64_cint, movdi_high_sp64_cint): Remove.
        (losum_di_medlow, sethm, setlo): Make op2 symbolic_operand.
        (cmp_siqi_trunc_set, cmp_diqi_trunc_set): Encapsulate both
        instances of operand 1 inside a QI subreg.
        (xordi3_sp64_dbl): Remove '%' constraint for op1.
        (one_cmpldi2_sp64): Fix output string.
        (one_cmplsi2_not_liveg0): Rewrite to remove unneeded extra
        alternative case.
        (unnamed arch64 ashift DI): Truncate shift count if greater than
        63, not 31.

Fri Aug 14 21:52:53 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * expr.c (store_expr): Don't optimize away load-store pair
        when either source or destination have a side effect.

Fri Aug 14 16:50:10 1998  John Carr  <jfc@mit.edu>

        * genrecog.c (add_to_sequence): Fatal error if the modes of the
        operands of SET are incompatible.

        * alpha.md: Fix max and min patterns so modes of SET operands match.

Fri Aug 14 12:22:55 1998  Ian Lance Taylor  <ian@cygnus.com>

        * configure.in: Avoid [[ by using test and changequote.
        * configure: Rebuild.

Fri Aug 14 01:22:31 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * rtl.def (CONSTANT_P_RTX): Fix typo in string name.

        * config/sparc/sparc.md (seqdi_special_trunc, snedi_special_trunc,
        seqsi_special_extend, snesi_special_extend, snesi_zero_extend and
        split, snedi_zero_trunc and split, seqsi_zero_extend and split,
        seqdi_zero_trunc and split, pic_lo_sum_di, pic_sethi_di,
        movdi_cc_sp64_trunc, movdi_cc_reg_sp64_trunc, addx_extend_sp32 and
        split, addx_extend_sp64, subx_extend_sp64, subx_extend and split):
        Fix mismatching modes in SET operands.
        (conditional move patterns): Fix formatting.
        (unnamed subx arch64 pattern): Remove duplicate insn.
        
Fri Aug 14 00:34:34 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * config/sparc/sparc.c (const64_operand, const64_high_operand):
        Get it right when HOST_BITS_PER_WIDE_INT is not 64.
        (input_operand): Fixup test for what we accept for constant
        integers.
        (sparc_emit_set_const32, sparc_emit_set_symbolic_const64): Give
        set VOIDmode.
        (safe_constDI): Remove.
        (sparc_emit_set_safe_HIGH64, gen_safe_SET64, gen_safe_OR64,
        gen_safe_XOR64): New functions.
        (sparc_emit_set_const64_quick1, sparc_emit_set_const64_quick2,
        sparc_emit_set_const64_longway, sparc_emit_set_const64): Use
        them.
        * config/sparc/sparc.md (define_insn xordi3_sp64_dbl): Only make
        available when HOST_BITS_PER_WIDE_INT is not 64.
        (define_insn movdi_sp64_dbl, movdi_const64_special): Likewise and
        move before movdi_insn_sp64 pattern.
        (define_insn movdi_lo_sum_sp64_dbl, movdi_high_sp64_dbl): Remove.
        (define_insn sethi_di_medlow, seth44, setm44, sethh): Use
        symbolic_operand as predicate for second operand.
        (DImode minus split on arch32, negsi2 expander, one_cmplsi2
        expander): Give set VOIDmode.
        
Fri Aug 14 01:45:06 1998  Mumit Khan  <khan@xraylith.wisc.edu>

        * i386/cygwin32 (DEFAULT_PCC_STRUCT_RETURN): Define.

Fri Aug 14 01:40:21 1998  Geoffrey Keating  <geoffk@ozemail.com.au>

        * rs6000/linux.h (LINK_SPEC): Pass -G args to the linker.

Fri Aug 14 01:23:23 1998  Richard Earnshaw (rearnsha@arm.com)

        * arm/netbsd.h (TARGET_DEFAULT): Default includes software floating 
        point.
        (CPP_FLOAT_DEFAULT_SPEC): Re-define accordingly.

Fri Aug 14 01:19:08 1998  Robert Lipe  <robertl@dgii.com>

        * install.texi: Various SCO OpenServer tweaks.

Thu Aug 13 20:14:40 1998  Jim Wilson  <wilson@cygnus.com>

        * reload1.c (eliminate_regs_in_insn): Handle another case when
        eliminating the frame pointer to the hard frame pointer.  Add
        missing ep->to_rtx check to one existing case.

        * mips/mips.md (movhi_internal2+2): Fix typo mem:SI -> mem:HI.

Thu Aug 13 17:08:11 1998  Jason Merrill  <jason@yorick.cygnus.com>

        * tree.h: De-conditionalize init_priority code.

        * mips.h (NM_FLAGS): Change from -Bp to -Bn.
        * collect2.c (NM_FLAGS): Change from -p to -n.

        * configure.in: Turn on collect2 for mipstx39-elf.
        Handle use_collect2=no properly.

        * c-common.c: De-conditionalize init_priority code.
        * collect2.c (extract_init_priority, sort_ids): New fns.
        (main): Call sort_ids.
        Move sequence_number to file scope.

        * configure.in: Handle --enable-init-priority.
        * c-common.c (attrs): Add A_INIT_PRIORITY.
        (init_attributes, decl_attributes): Likewise.
        * tree.h (DEFAULT_INIT_PRIORITY, MAX_INIT_PRIORITY): New macros.
        * tree.c (get_file_function_name_long): Split out...
        (get_file_function_name): ...from here.

Thu Aug 13 16:09:53 1998  Martin von Loewis  <loewis@informatik.hu-berlin.de>

        * expr.c (safe_from_p): Change code to ERROR_MARK only when not
        accessing nodes.

Thu Aug 13 15:24:48 1998  Jason Merrill  <jason@yorick.cygnus.com>

        * toplev.c (display_help): Add braces to shut up warnings.
        * tree.c (simple_cst_equal): Likewise.

        * fold-const.c (non_lvalue): Don't deal with null pointer 
        constants here.
        (fold, case COMPOUND_EXPR): Wrap a constant 0 in a NOP_EXPR.

        * c-typeck.c (initializer_constant_valid_p): Allow conversion of 0
        of any size to a pointer.

Thu Aug 13 12:53:13 1998  Jim Wilson  <wilson@cygnus.com>

        * i386/winnt.c (i386_pe_asm_file_end): Check TREE_SYMBOL_REFERENCED.

Wed Aug 12 17:25:18 1998  Jeffrey A Law  (law@cygnus.com)

        * mn10300.c (REG_SAVE_BYTES): Only reserve space for registers
        which will be saved.
        * mn10300.md (prologue insn): Only save registers which need saving.
        (epilogue insn): Similarly.

        * mn10300.c, mn10300.h, mn10300.md: Remove "global zero register"
        optimizations.

Wed Aug 12 12:39:16 1998  Gavin Romig-Koch  <gavin@cygnus.com>

        * mips/mips.h (ENCODE_SECTION_INFO): Set SYMBOL_REF_FLAG for
        VAR_DECL's in gp addressable sections.

Tue Aug 11 23:02:31 1998  John Carr  <jfc@mit.edu>

        * sparc.c: Change return <exp> to <exp>; return; in functions
        returning void.
        * sparc.md: Add empty semicolon statement after final label in
        move expanders.

Tue Aug 11 22:42:01 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * config/sparc/sparc.md (define_insn addx_extend): Rename to
        addx_extend_sp64, only allow when TARGET_ARCH64.
        (define_insn addx_extend_sp32 and split): Version that works when
        not TARGET_ARCH64.
        (define_insn subx_extend): Likewise.
        (define_split adddi3 and subdi3 with zero extension): Fixup and
        correct bugs when not TARGET_ARCH64.

Tue Aug 11 16:04:34 1998  John Carr  <jfc@mit.edu>

        * except.c (set_exception_lang_code, set_exception_version_code):
        Use prototype-style definition if __STDC__, to match declaration
        in except.h.

        * genemit.c: Change FAIL and DONE macros not to use loops.

Tue Aug 11 12:27:03 1998  Jim Wilson  <wilson@cygnus.com>

        * dwarf2out.c (ASM_OUTPUT_DWARF_ADDR_CONST): Use
        ASM_OUTPUT_DWARF2_ADDR_CONST if defined.

        * mips/mips.md (reload_outsi): Use M16_REG_P when TARGET_MIPS16.

Tue Aug 11 18:12:53 1998  Dave Love  <d.love@dl.ac.uk>

        * README.g77: Update from Craig.

Tue Aug 11 04:46:01 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * config/sparc/sparc.c (sparc_emit_set_const32): INTVAL is of
        type HOST_WIDE_INT.
        (safe_constDI sparc_emit_set_const64_quick1,
        sparc_emit_set_const64_quick2, sparc_emit_set_const64_longway,
        analyze_64bit_constant, const64_is_2insns,
        create_simple_focus_bits): Fix some bugs when compiled on real
        64-bit hosts.
        (function_arg_record_value_3, function_arg_record_value_2,
        function_arg_record_value): Add fully prototyped forward decls.
        * config/sparc/sparc.md (define_insn cmpsi_insn_sp32): Rename back
        to cmpsi_insn and use on both 64 and 32 bit targets.
        (define_insn cmpsi_insn_sp64): Remove.
        (define_expand zero_extendsidi2): Allow for 32-bit target too.
        (define_insn zero_extendsidi2_insn): Rename to
        zero_extendsidi2_insn_sp64.
        (define_insn zero_extendsidi2_insn_sp32): New pattern and
        assosciated forced split for it.

        * config/sparc/sparc.c (const64_operand, const64_high_operand):
        New predicates.
        * config/sparc/sparc.h: Declare them.
        (PREDICATE_CODES): Add them.
        * config/sparc/sparc.md (movdi_lo_sum_sp64_dbl,
        movdi_high_sp64_dbl, xordi3_sp64_dbl): Use them.

Mon Aug 10 22:57:24 1998  John Carr  <jfc@mit.edu>

        * config/sparc/sparc.md (define_insn jump): Output ba,pt not b,pt
        in v9 case as the latter makes the Solaris assembler crash.

Mon Aug 10 22:39:09 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * config/sparc/sparc.c (input_operand): Do not accept a LO_SUM MEM
        for TFmode when !v9.  We require offsettable memory addresses.
        * config/sparc/sparc.h (ALTER_HARD_SUBREG): Handle TFmode to
        DFmode register number conversions.
        * config/sparc/sparc.md (define_split DFmode moves): If register
        is a SUBREG do alter_subreg on it before using.
        (define_expand movtf): Fixup comment about alignment on v9.
        (define_split TFmode moves): Don't use gen_{high,low}part, create
        explicit SUBREGs instead.

Mon Aug 10 19:02:55 1998  John Carr  <jfc@mit.edu>

        * Makefile.in (mbchar.o): Depend on mbchar.c.

Mon Aug 10 04:28:13 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>
                          Richard Henderson  <rth@cygnus.com>
        
        Rewrite Sparc backend for better code generation and
        improved sparc64 support.
        * config/sparc/sp64-elf.h: Set JUMP_TABLES_IN_TEXT_SECTION to
        zero.
        * config/sparc/sysv4.h: Likewise.
        * config/sparc/sparc.c (v8plus_regcmp_p, sparc_operand,
        move_operand, v8plus_regcmp_op, emit_move_sequence,
        singlemove_string, doublemove_string, mem_aligned_8,
        output_move_double, output_move_quad, output_fp_move_double,
        move_quad_direction, output_fp_move_quad, output_scc_insn):
        Remove.
        (small_int_or_double): New predicate.
        (gen_compare_reg): Remove TARGET_V8PLUS cmpdi_v8plus emission.
        (legitimize_pic_address): Emit movsi_{high,lo_sum}_pic instead of
        old pic_{sethi,lo_sum}_si patterns.
        (mem_min_alignment): New generic function to replace
        mem_aligned_8, which uses REGNO_POINTER_ALIGN information when
        available and can test for arbitrary alignments.  All callers
        changed.
        (save_regs, restore_regs, build_big_number,
        output_function_prologue, output_cbranch, output_return,
        sparc_flat_save_restore, sparc_flat_output_function_prologue,
        sparc_flat_output_function_epilogue): Prettify
        insn output.
        (output_function_epilogue): Likewise and add code to output
        deferred case vectors.
        (output_v9branch): Likewise, add new arg INSN and use it to tack
        on branch prediction settings.  All callers changed.
        (print_operand): Likewise and output %l44 for LO_SUMs when
        TARGET_CM_MEDMID.
        (sparc_splitdi_legitimate): New function to make sure DImode
        splits can be run properly when !arch64.
        (sparc_initialize_trampoline, sparc64_initialize_trampoline):
        Reformat example code in comments.
        (set_extends): Remove UNSPEC/v8plus_clear_high case.
        (sparc_addr_diff_list, sparc_addr_list): New statics to keep track
        of deferred case vectors we need to output.
        (sparc_defer_case_vector): Record a case vector.
        (sparc_output_addr_vec, sparc_output_addr_diff_vec,
        sparc_output_deferred_case_vectors): New functions to output them.
        (sparc_emit_set_const32): New function to form 32-bit constants in
        registers when that requires more than one instruction.
        (safe_constDI, sparc_emit_set_const64_quick1,
        sparc_emit_set_const64_quick2, sparc_emit_set_const64_longway,
        analyze_64bit_constant, const64_is_2insns,
        create_simple_focus_bits, sparc_emit_set_const64): New functions
        which do the same for 64-bit constants when arch64.
        (sparc_emit_set_symbolic_const64): New function to emit address
        loading for all code models on v9.
        * config/sparc/sparc.h (CONDITIONAL_REGISTER_USAGE): Do not make
        %g1 fixed when arch64, unfix %g0 when TARGET_LIVE_G0.
        (ALTER_HARD_SUBREG): Fix thinko, return REGNO + 1 not 1.
        (SECONDARY_INPUT_RELOAD_CLASS, SECONDARY_OUTPUT_RELOAD_CLASS): Fix
        inaccuracies in comments, add symbolic and text_segment operands
        when TARGET_CM_MEDANY and TARGET_CM_EMBMEDANY respectively.  Use
        GENERAL_REGS in these cases as a temp REG is needed to load these
        addresses into a register properly.
        (EXTRA_CONSTRAINT): Document more accurately, remove Q case as it
        is no longer used.
        (GO_IF_LEGITIMATE_ADDRESS): Allow TFmode for LO_SUM on v9 since fp
        quads are guarenteed to have 16-byte alignment.
        (LEGITIMIZE_ADDRESS): For SYMBOL_REF, CONST, and LABEL_REF use
        copy_to_suggested_reg instead of explicit LO_SUM and HIGH.
        (ASM_OUTPUT_ADDR_VEC, ASM_OUTPUT_ADDR_DIFF_VEC): New macros for
        deferred case vector implementation.
        (ASM_OUTPUT_ADDR_VEC_ELT): Use fputc to output newline.
        (ASM_OUTPUT_ADDR_DIFF_ELT): Parenthesize LABEL in macro calls.
        Generate "internal label - label" instead of "label - 1b".
        (PRINT_OPERAND_ADDRESS): For LO_SUM use %l44 on TARGET_CM_MEDMID.
        (PREDICATE_CODES): Remove sparc_operand, move_operand,
        v8plus_regcmp_op.  Add small_int_or_double, input_operand, and
        zero_operand.
        (doublemove_string, output_block_move, output_fp_move_double,
        output_fp_move_quad, output_move_double, output_move_quad,
        output_scc_insn, singlemove_string, mem_aligned_8, move_operand,
        sparc_operand, v8plus_regcmp_op, v8plus_regcmp_p): Remove externs.
        (sparc_emit_set_const32, sparc_emit_set_const64,
        sparc_emit_set_symbolic_const64, input_operand, zero_operand,
        mem_min_alignment, small_int_or_double): Add externs.
        * config/sparc/sparc.md: Document the many uses of UNSPEC and
        UNSPEC_VOLATILE in this backend.
        (define_function_unit ieu): Rename to ieu_unnamed.  Add move and
        unary to types which execute in it.
        (define_function_unit ieu_shift): Rename to ieu0.
        (define_function_unit ieu1): New, executes compare, call, and
        uncond_branch type insns.
        (define_function_units for type fdivs, fdivd, fsqrt): These
        execute in the fpu multiply unit not the adder on UltraSparc.
        (define_expand cmpdi): Disallow TARGET_V8PLUS.
        (define_insn cmpsi_insn): Rename to cmpsi_insn_sp32.
        (define_insn cmpsi_insn_sp64): New, same as sp32 variant except it
        allows the arith_double_operand predicate and rHI constraint when
        TARGET_ARCH64.
        (define_insn cmpdi_sp64, cmpsf_fpe, cmpdf_fpe, cmptf_fpe,
        cmpsf_fp, cmpdf_fp, cmptf_fp, sltu_insn, neg_sltu_insn,
        neg_sltu_minux_x, neg_sltu_plus_x, sgeu_insn, neg_sgeu_insn,
        sltu_plus_x, sltu_plus_x, sltu_plus_x_plus_y, x_minus_sltu,
        sgeu_plus_x, x_minus_sgeu, movqi_cc_sp64, movhi_cc_sp64,
        movsi_cc_sp64, movdi_cc_sp64, movsf_cc_sp64, movdf_cc_sp64,
        movtf_cc_sp64, movqi_cc_reg_sp64, movhi_cc_reg_sp64,
        movsi_cc_reg_sp64, movdi_cc_reg_sp64, movsf_cc_reg_sp64,
        movdf_cc_reg_sp64, movtf_cc_reg_sp64, zero_extendhisi2_insn,
        cmp_siqi_trunc, cmp_siqi_trunc_set, sign_extendhisi2_insn,
        sign_extendqihi2_insn, sign_extendqisi2_insn,
        sign_extendqidi2_insn, sign_extendhidi2_insn,
        extendsfdf2, extendsftf2, extenddftf2, truncdfsf2, trunctfsf2,
        trunctfdf2, floatsisf2, floatsidf2, floatsitf2, floatdisf2,
        floatdidf2, floatditf2, fix_truncsfsi2, fix_truncdfsi2,
        fix_trunctfsi2, fix_truncsfdi2, fix_truncdfdi2, fix_trunctfdi2,
        adddi3_sp64, addsi3, cmp_ccx_plus, cmp_cc_plus_set, subdi_sp64,
        subsi3, cmp_minus_ccx, cmp_minus_ccx_set, mulsi3, muldi3,
        muldi3_v8plus, cmp_mul_set, mulsidi3, mulsidi3_v8plus,
        const_mulsidi3_v8plus, mulsidi3_sp32, const_mulsidi3,
        smulsi3_highpart_v8plus, unnamed subreg mult,
        const_smulsi3_highpart_v8plus, smulsi3_highpart_sp32,
        const_smulsi3_highpart, umulsidi3_v8plus, umulsidi3_sp32,
        const_umulsidi3, const_umulsidi3_v8plus, umulsi3_highpart_v8plus,
        const_umulsi3_highpart_v8plus, umulsi3_highpart_sp32,
        const_umulsi3_highpart, divsi3, divdi3, cmp_sdiv_cc_set, udivsi3,
        udivdi3, cmp_udiv_cc_set, smacsi, smacdi, umacdi, anddi3_sp64,
        andsi3, and_not_di_sp64, and_not_si, iordi3_sp64, iorsi3,
        or_not_di_sp64, or_not_si, xordi3_sp64, xorsi3, xor_not_di_sp64,
        xor_not_si, cmp_cc_arith_op, cmp_ccx_arith_op,
        cmp_cc_arith_op_set, cmp_ccx_arith_op_set, cmp_ccx_xor_not,
        cmp_cc_xor_not_set, cmp_ccx_xor_not_set, cmp_cc_arith_op_not,
        cmp_ccx_arith_op_not, cmp_cc_arith_op_not_set,
        cmp_ccx_arith_op_not_set, negdi2_sp64, cmp_cc_neg, cmp_ccx_neg,
        cmp_cc_set_neg, cmp_ccx_set_neg, one_cmpldi2_sp64, cmp_cc_not,
        cmp_ccx_not, cmp_cc_set_not, cmp_ccx_set_not, addtf3, adddf3,
        addsf3, subtf3, subdf3, subsf3, multf3, muldf3, mulsf3,
        muldf3_extend, multf3_extend, divtf3, divdf3, divsf3, negtf2,
        negdf2, negsf2, abstf2, absdf2, abssf2, sqrttf2, sqrtdf2, sqrtsf2,
        ashlsi3, ashldi3, unnamed DI ashift, cmp_cc_ashift_1,
        cmp_cc_set_ashift_1, ashrsi3, ashrdi3, unnamed DI ashiftrt,
        ashrdi3_v8plus, lshrsi3, lshrdi3, unnamed DI lshiftrt,
        lshrdi3_v8plus, tablejump_sp32, tablejump_sp64, call_address_sp32,
        call_symbolic_sp32, call_address_sp64, call_symbolic_sp64,
        call_address_struct_value_sp32, call_symbolic_struct_value_sp32,
        call_address_untyped_struct_value_sp32,
        call_symbolic_untyped_struct_value_sp32, call_value_address_sp32,
        call_value_symbolic_sp32, call_value_address_sp64,
        call_value_symbolic_sp64, branch_sp32, branch_sp64,
        flush_register_windows, goto_handler_and_restore,
        goto_handler_and_restore_v9, goto_handler_and_restore_v9_sp64,
        flush, all ldd/std peepholes, return_qi, return_hi, return_si,
        return_addsi, return_di, return_adddi, return_sf, all call+jump
        peepholes, trap, unnamed trap insns): Prettify output strings.
        (define_insn anddi3_sp32, and_not_di_sp32, iordi3_sp32,
        or_not_di_sp32, xordi3_sp32, xor_not_di_sp32, one_cmpldi2):
        Likewise and force + implement splits for integer cases.
        (define_insn return_sf_no_fpu): Likewise and allow to match when
        no-fpu because of our subreg SFmode splits.
        (define_insn zero_extendqihi2, zero_extendqisi2_insn,
        zero_extendqidi2_insn, zero_extendhidi2_insn,
        zero_extendsidi2_insn, sign_extendsidi2_insn): Likewise and use
        input_operand for second operand.
        (cmp_minus_cc, cmp_minus_cc_set): Likewise and use
        reg_or_0_operand for operand 2 so new splits can use it.
        (cmp_zero_extendqisi2, cmp_zero_extendqisi2_set, cmp_cc_plus,
        cmp_cc_xor_not): Likewise and don't forget to check TARGET_LIVE_G0
        too.
        (cmp_zero_extract, cmp_zero_extract_sp64): Likewise and allow
        CONST_DOUBLEs for operand 2.
        (define_insn move_label_di): Likewise and label distance
        optimization because it no longer works with new deferred case
        vector scheme.  To be revisited.
        (define_insn x_minus_y_minus_sltu, x_minus_sltu_plus_y): Likewise
        and allow reg_or_0_operand and J constraint for second operand.
        (define_insn jump): Set branch predict taken on V9.
        (define_insn tablejump): Emit LABEL_REF + PLUS memory address for
        new deferred case vector scheme.
        (define_insn pic_tablejump_32, pic_tablejump_64): Remove.
        (define_insn negdi2_sp32): Force + implement splits.
        (define_insn negsi2, one_cmplsi2): Rename to negsi2_not_liveg0 and
        one_cmplsi2_not_liveg0 respectively, and create expander of original
        names which emit special rtl for TARGET_LIVE_G0.
        (define_insn cmpdi_v8plus, scc_si, scc_di): Remove.
        (define_insn seq, sne, slt, sge, sle, sltu, sgeu): Don't do
        gen_compare_reg, FAIL instead.
        (define_insn sgtu, sleu): Likewise and check gen_s*() return
        values when trying to reverse condition codes, if they FAIL then
        do likewise.
        (define_insn snesi_zero, neg_snesi_zero, snesi_zero_extend,
        snedi_zero, neg_snedi_zero, snedi_zero_trunc, seqsi_zero,
        neg_seqsi_zero, seqsi_zero_extend, seqdi_zero, neg_seqdi_zero,
        seqdi_zero_trunc, x_plus_i_ne_0, x_minus_i_ne_0, x_plus_i_eq_0,
        x_minus_i_eq_0): Add new splits to perform these multi-insn cases,
        set output string to # to indicate they are mandatory splits.
        (define_insn pic_lo_sum_si, pic_sethi_si, pic_lo_sum_di,
        pic_sethi_di, move_pic_label_si): Remove.
        (define_insn movsi_low_sum, movsi_high, movsi_lo_sum_pic,
        movsi_high_pic, movsi_pic_label_reg): New patterns to take their
        place.
        (define_expand movsi_pic_label_ref, define_insn
        movsi_high_pic_label_ref, movsi_lo_sum_pic_label_ref): New
        expander and insns to handle PIC label references and deferred
        case vectors.
        (define_insn get_pc_via_rdpc): Comment out as it is no longer
        used.
        (define_expand movqi, movhi, movsi, movdi, movsf, movdf, movtf):
        Rewrite to not use emit_move_sequence, make use of new constant
        formation code, and new splits for all multi-insn cases.
        (define_insn movqi_insn): Remove sethi case, it can never happen.
        Use reg_or_zero_operand instead of const0_rtx explicit test,
        use input_operand instead of move_operand for source, and use
        general_operand now for dest.
        (define_insn movhi_insn): Similar but leave sethi case.
        (define_insn lo_sum_qi, store_qi, store_hi): Remove.
        (define_insn sethi_hi lo_sum_hi): Rename to movhi_high and
        movhi_lo_sum respectively, prettify output string.
        (define_insn movsi_zero_liveg0): New pattern to put zero into a
        register when needed on TARGET_LIVE_G0.
        (define_insn movsi_insn): Use general_operand and input_operand
        for dest and src respectively.  Simplify applicability test.
        Prettify output strings, and add clr alternative for J
        constraint.
        (define_insn movdi_sp32_v9, movdi_sp32, define_splits for
        deprecated std and reg-reg DI moves): Remove and...
        (define_insn movdi_insn_sp32, movdi_insn_sp64): Replace with new
        implementation which uses forced splits for all non-single insn
        cases.
        (define_split DI move cases on !arch64): New splits to handle all
        situations of 64-bit double register DImode on 32bit, and
        unaligned registers and memory addresses for all subtargets.
        (define_insn movsf_const_insn, movdf_const_insn, store_sf):
        Remove.
        (define_insn movsf_insn, movsf_no_f_insn): Use general_operand and
        input_operand for dest and src respectively, prettify output
        strings.
        (define_insn movdf_insn, movdf_no_e_insn, store_df,
        movtf_const_insn, movtf_insn, movtf_no_e_insn, store_tf): Remove
        and...
        (define_insn movdf_insn_sp32, movdf_no_e_insn_sp32,
        movdf_insn_sp64, movdf_no_e_insn_sp64, movtf_insn,
        movtf_no_e_insn_sp32, movtf_insn_hq_sp64, movtf_insn_sp64,
        movtf_no_e_insn_sp64) Replace with new
        implementation which uses forced splits for all non-single insn
        cases.
        (define_split DF move cases): New splits in similar vein to DI
        move counterparts.
        (define_insn sethi_di_medlow, sethi_di_medium_pic,
        sethi_di_embmedany_data, sethi_di_embmedany_text, sethi_di_sp64,
        movdi_sp64_insn): Remove old v9 code model and constant loading
        support insns and..
        (define_insn pic_lo_sum_di, pic_sethi_di,
        sethi_di_medlow_embmedany_pic, sethi_di_medlow, losum_di_medlow,
        seth44, setm44, setl44, sethh, setlm, sethm, setlo,
        embmedany_sethi, embmedany_losum, embmedany_brsum,
        embmedany_textuhi, embmedany_texthi, embmedany_textulo,
        embmedany_textlo, movdi_lo_sum_sp64_cint, movdi_lo_sum_sp64_dbl,
        movdi_high_sp64_cint, movdi_high_sp64_dbl): Replace with new
        scheme, using unspecs, secondary reloads, and one to one sparc
        insn to rtl insn mapping for better scheduling and code gen.
        (define_expand reload_indi, reload_outdi): Reload helpers for
        MEDANY and EMBMEDANY symbol address loading cases which require a
        temporary register.
        (define_expand movsicc): Remove v8plus_regcmp cases.
        (define_insn movdi_cc_sp64_trunc, movdi_cc_reg_sp64_trunc,
        cmp_zero_extendqidi2, cmp_zero_extendqidi2_set, cmp_qidi_trunc,
        cmp_diqi_trunc_set): New patterns used by some of the new scc
        splits on arch64.
        (define_insn xordi3_sp64_dbl): New pattern used for constant
        formation when crossing from 32-bit targets.
        (define_insn movsi_cc_reg_v8plus, v8plus_clear_high, and helper
        split): Remove.
        (define_insn addx, subx): Make visible and prettify.
        (define_insn adddi3_insn_sp32): Likewise and force split.
        (define_insn addx_extend, subx_extend, unnamed): New patterns for
        64bit scc split usage.
        (define_insn unnamed plusDI zero_extend, unnamed minusDI
        zero_extend, subdi3): Force and implement splits.
        
        * final.c (final_scan_insn): Don't output labels if target
        specifies ASM_OUTPUT_ADDR_{DIFF}_VEC.  Do these macro operations
        instead.
        
        * reorg.c (dbr_schedule): When taking on BR_PRED notes at the end,
        don't forget to walk inside SEQUENCESs too as these are what the
        delay slot scheduler will create.
        
Mon Aug 10 01:21:01 1998  Richard Henderson  <rth@cygnus.com>

        * alpha.md (extxl+1,+2): New patterns to work around
        combine lossage.

Sat Aug  8 19:20:22 1998 Gary Thomas (gdt@linuxppc.org)

        * rs6000.c (rs6000_allocate_stack_space) Fix typo which
        caused bad assembly code to be generated.

Sat Aug  8 18:53:28 1998  Jeffrey A Law  (law@cygnus.com)

        * netbsd.h: Fix typo.

Mon Aug  3 00:06:42 1998  Robert Lipe  <robertl@dgii.com> 

        * config.sub: Fix typo.

Sun Aug  2 22:39:08 1998  Hans-Peter Nilsson  <hp@axis.se>

        * invoke.texi (Environment Variables): Typo: Change "ascpects"
        into "aspects".
        (Running Protoize): Typo: Change "ther" into "other".

Sun Aug  2 00:42:50 1998  Jeffrey A Law  (law@cygnus.com)

        * i386/netbsd.h: Undo previous change to DWARF2_UNWIND_INFO.
        * m68k/netbsd.h: Likewise.
        * ns32k/netbsd.h: Likewise.
        * sparc/netbsd.h: Likewise.

Sat Aug  1 17:59:30 1998  Richard Henderson  <rth@cygnus.com>

        * ginclude/va-alpha.h (va_list): Use a typedef, not a define.
        * ginclude/va-clipper.h (va_list): Likewise.

Fri Jul 31 20:22:02 1998  Michael Meissner  <meissner@cygnus.com>

        * rs6000.c (rs6000_override_options): If big endian and -Os, use
        load/store multiple instructions unless user overrides.

Fri Jul 31 17:08:59 1998  Jeffrey A Law  (law@cygnus.com)

        * ns32k/netbsd.h: Fix typo.

Fri Jul 31 10:23:55 1998  Doug Evans  <devans@canuck.cygnus.com>

        * m32r/m32r.h (ASM_OUTPUT_SOURCE_LINE): Always output line number
        labels with .debugsym if no parallel insns.

Thu Jul 30 19:15:53 1998  Richard Henderson  <rth@cygnus.com>

        * alpha.md (fp cmp): Replicate patterns for ALPHA_TP_INSN.
        (fcmov): Remove ALPHA_TP_INSN patterns -- fcmov doesn't trap.

Thu Jul 30 19:50:15 1998  David Edelsohn  <edelsohn@mhpcc.edu>

        * rs6000/x-aix43 (AR_FOR_TARGET_FLAGS): Delete.
        (AR_FOR_TARGET): Define.

Thu Jul 30 12:29:12 1998  Mark Mitchell  <mark@markmitchell.com>

        * dyn-string.h: New file.
        * dyn-string.c: Likewise.
        * Makefile.in (OBJS): Add dyn-string.o.
        (dwarf2out.o): Add dyn-string.h dependency.
        (dyn-string.o): List dependencies.
        * dwarf2out.c: Include dyn-string.h.
        (ASM_NAME_TO_STRING): Use dyn_string_append, rather than strcpy.
        (addr_const_to_string): Take a dyn_string_t, not a char* as a
        prototype.  Use dyn_string_append rather than strcat, throughout.
        (addr_to_string): Use dyn_string_t.

Thu Jul 30 13:08:07 1998  Ken Raeburn  <raeburn@cygnus.com>

        Function entry/exit profiling instrumentation:
        * expr.h (profile_function_entry_libfunc,
        profile_function_exit_libfunc): Declare new variables.
        * optabs.c: Define them here.
        (init_optabs): Initialize them.
        * tree.h (struct tree_decl): New flag
        no_instrument_function_entry_exit.
        (DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT): New accessor macro.
        * c-decl.c (duplicate_decls): Merge it.
        * c-common.c (enum attrs): New value A_NO_INSTRUMENT_FUNCTION.
        (init_attributes): Use it for "no_instrument_function".
        (decl_attributes): Handle it, for functions that have not yet been
        compiled.  Set decl flag.
        * flags.h (flag_instrument_function_entry_exit): Declare new
        variable.
        * toplev.c (flag_instrument_function_entry_exit): Define it here.
        (f_options): New option "instrument-functions".
        * function.h (struct function): New field instrument_entry_exit.
        * function.c (current_function_instrument_entry_exit): New
        variable.
        (push_function_context_to, pop_function_context_from): Save and
        restore.
        (expand_function_start): Set current_ variable, maybe emit return
        label and entry profile call.
        (expand_function_end): Maybe emit exit profile call.

Thu Jul 30 00:58:34 1998  Jeffrey A Law  (law@cygnus.com)

        * i386.md (movqi): When optimizing a load of (const_int 1) into a
        NON_QI_REG_P, pretend the register is SImode.

Wed Jul 29 23:49:23 1998  Todd Vierling <tv@netbsd.org>

        * configure.in: Use xm-netbsd.h as the NetBSD xm file (not xm-siglist).
        Accept arm32 as arm, m68k4k as m68k, mipsle as mips-dec, and any
        manufacturer id for ns32k.
        * configure: Regenerated.
        * config/netbsd.h: When using ASM_WEAKEN_LABEL, make it global too.
        * config/t-netbsd: Don't compile libgcc1-test as the fns are in libc.
        * config/i386/netbsd.h: Undefine DWARF2_UNWIND_INFO, not define as 0.
        * config/m68k/netbsd.h: Same.
        * config/ns32k/netbsd.h: Same.
        * config/sparc/netbsd.h: Same.

Wed Jul 29 22:39:21 1998  Jeffrey A Law  (law@cygnus.com)

        * unroll.c (unroll_loop): Do not abort for an UNROLL_MODULO
        or UNROLL_COMPLETELY loop that starts with a jump to its
        exit code.

Wed Jul 29 22:18:14 1998  David Edelsohn  <edelsohn@mhpcc.edu>

        * rs6000/rs6000.md (absdi2 define_split): Swap operands of MINUS.
        * rs6000/rs6000.c (mask64_operand): Use HOST_BITS_PER_WIDE_INT.
        (print_operand, case 'B'): Don't fall through.
        (print_operand, case 'S'): Correct mask begin/end computation.
        Use HOST_BITS_PER_WIDE_INT.
        * rs6000/rs6000.h (CPP_PREDEFINES): Define _LONG_LONG.
        (CONDITIONAL_REGISTER_USAGE): GPR13 fixed if TARGET_64BIT.
        * rs6000/aix41.h (CPP_PREDEFINES): Same.
        * rs6000/aix43.h (CPP_PREDEFINES): Same.

Wed Jul 29 11:47:10 1998  Nick Clifton  <nickc@cygnus.com>

        * config/arm/thumb.md (extendqisi2_insn): Remove earlyclobber
        constraint from second alternative.

Tue Jul 28 23:29:04 1998  Jason Merrill  <jason@yorick.cygnus.com>

        * configure.in: Fix --without/--disable cases for local-prefix, 
        gxx-include-dir and checking.

Tue Jul 28 22:01:23 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * configure.in (enable_haifa): Set by default for sparc64 too.
        configure: Rebuilt.

Tue Jul 28 23:29:04 1998  Jason Merrill  <jason@yorick.cygnus.com>

        * i386/cygwin32.h (VALID_MACHINE_TYPE_ATTRIBUTE): New macro.
        * i386/winnt.c (associated_type): New fn.
        (i386_pe_valid_type_attribute_p): New fn.
        (i386_pe_check_vtable_importexport): Remove.
        (i386_pe_dllexport_p): Use associated_type.
        (i386_pe_dllimport_p): Likewise.

        From Antonio M. O. Neto <anmendes@cruzeironet.com.br>:
        * i386.c (i386_valid_type_attribute_p): Also accept
        attributes for METHOD_TYPEs.

Tue Jul 28 23:17:39 1998  Peter Gerwinski <peter@gerwinski.de>

        * tree.c (build_range_type): Copy TYPE_SIZE_UNIT.

Tue Jul 28 22:31:12 1998  Craig Burley  <burley@gnu.org>

        * gcc.c: Fix commentary describing %g, %u, %U, and %O.

        * gcc.c (do_spec_1): Fix handling of %g%O and %U%O to prevent
        them from generating a new base name for each occurence of
        a specific suffix.

1998-07-28  Vladimir N. Makarov  <vmakarov@cygnus.com>

        * cse.c (cse_insn): Enable subsitution inside libcall only for REG,
        SUBREG, MEM.
        * rtlanal.c (replace_rtx): Prohibit replaces in CONST_DOUBLE. 



        * cplus-dem.c (type_kind_t): New type.
        (demangle_template_value_parm): Add type_kind_t parameter.  Rely
        on this paramter, rather than demangling the type again.
        (demangle_integral_value): Pass tk_integral.
        (demangle_template_: Pass the value returned from do_type.
        (do_type): Return a type_kind_t.  Pass tk_integral to
        demangle_template_value_parm for array bounds.
        (demangle_fund_type): Likewise.
        
Mon Jul 27 00:54:41 1998  Jason Merrill  <jason@yorick.cygnus.com>

        * tree.c (simple_cst_equal, case CONSTRUCTOR): OK if the elts are
        identical.

Mon Jul 27 22:18:36 1998  Jeffrey A Law  (law@cygnus.com)

        * pa.c (move_operand): Accept CONSTANT_P_RTX.

Mon Jul 27 17:18:52 1998  Dave Brolley  <brolley@cygnus.com>

        * stor-layout.c (layout_type): Handle arrays of bits, for Chill.

        * expr.c (get_inner_reference): Handle zero-based, unsigned, array
        index conversion.

Mon Jul 27 14:51:33 1998  Jeffrey A Law  (law@cygnus.com)

        * mn10300.h (DEBUGGER_AUTO_OFFSET): Define.
        (DEBUGGER_ARG_OFFSET): Likewise.

        * mn10300.md (movsf): Remove last change.  Not needed.

Mon Jul 27 14:22:36 1998  Dave Brolley  <brolley@cygnus.com>

        * c-lex.c (yylex): Fix boundary conditions in character literal and
        string literal loops.

Mon Jul 27 11:43:54 1998  Stan Cox  <scox@cygnus.com>

        * longlong.h (count_leading_zeros): Sparclite scan instruction was
        being invoked incorrectly.

        * i386.c (ix86_prologue): Added SUBTARGET_PROLOGUE invocation.
        * i386/cygwin32.h (STARTFILE_SPEC, LIB_SPEC, SUBTARGET_PROLOGUE): 
        Add -pg support. 
        * i386/win32.h: New file.  Hybrid mingw32.h/cygwin32.h configuration.
        * configure.in: Added i[34567]86-*-win32
        * config.sub: Ditto.
        * configure: Rebuilt.
        
Sun Jul 26 01:11:12 1998  H.J. Lu  (hjl@gnu.org)

        * i386.h (CONST_DOUBLE_OK_FOR_LETTER_P): Return 0 when eliminating
        the frame pointer and compiling PIC code and reload has not completed.

        * i386.c (output_to_reg): Add code to emulate non-popping DImode
        case.

Sun Jul 26 01:01:32 1998  Jeffrey A Law  (law@cygnus.com)

        * regmove.c (regmove_optimize): Fix typo initializing regmove_bb_head.

Sat Jul 25 23:29:23 1998  Gerald Pfeifer  <pfeifer@dbai.tuwien.ac.at>

        * Makefile.in (install-info): Only try to update the info
        directory file if it exists in the first place.

Fri Jul 24 18:58:37 1998  Klaus Espenlaub  <kespenla@student.informatik.uni-ulm.de>

        * rs6000.h (ASM_OUTPUT_CONSTRUCTOR, ASM_OUTPUT_DESTRUCTOR): Delete.

Fri Jul 24 14:20:26 1998  Jeffrey A Law  (law@cygnus.com)

        * mn10300.md (movqi, movhi, movsi, movsf): Correctly handle
        CONST_DOUBLE source.

Fri Jul 24 11:17:04 1998  Nick Clifton  <nickc@cygnus.com>

        * config/arm/thumb.c (thumb_print_operand): Decode %_ in asm
        strings as the insertion of USER_LABEL_PREFIX.
        * config/arm/thumb.h (PRINT_OPERAND_PUNCT_VALID_P): Accept _ as a
        valid code.
        * config/arm/thumb.md: Use %_ as a prefix to gcc library function
        calls. 

Thu Jul 23 18:53:20 1998  Jim Wilson  <wilson@cygnus.com>

        * dbxout.c (dbxout_range_type): Only call dbxout_type_index for
        already defined type.

Thu Jul 23 13:49:41 1998  Jeffrey A Law  (law@cygnus.com)

        * expr.c (check_max_integer_computation_mode): Allow conversions
        of constant integers to MAX_INTEGER_COMPUTATION_MODE.
        (expand_expr): Likewise.

Thu Jul 23 11:12:06 1998  Alexandre Petit-Bianco  <apbianco@cygnus.com>

        * expr.c (expand_expr): Expand RETURN_EXPR.

Thu Jul 23 11:00:29 1998  Jim Wilson  <wilson@cygnus.com>

        * dwarf2out.c (dwarf2out_finish): Call stripattributes on TEXT_SECTION.

Wed Jul 22 19:10:00 1998  Catherine Moore  <clm@cygnus.com>

        * dwarf2out.c (output_aranges):  Call stripattributes
        for TEXT_SECTION references.
        (output_line_info): Likewise.

Wed Jul 22 14:08:54 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * profile.c (branch_prob): Call allocate_reg_info after outputting
        profile rtl in instrument_arcs.

Wed Jul 22 12:47:49 1998  Jim Wilson  <wilson@cygnus.com>

        * fixinc.irix (math.h): Install wrapper instead of copying.

Wed Jul 22 12:37:14 1998  Alexandre Petit-Bianco <apbianco@cygnus.com>

        * tree.def (EXPR_WITH_FILE_LOCATION): Defined as an 'e' expression
        so WFL are expanded correctly when contained in a COMPOUND_EXPR.
        * tree.h (EXPR_WFL_EMIT_LINE_NOTE): Change macro not to use
        lang_flag_0. Added documentation in the flag table.

Tue Jul 21 23:28:35 1998  Klaus Kaempf <kkaempf@rmi.de>

        * cccp.c (do_include): Fix vax c style include handling.

Tue Jul 21 13:28:19 1998  Jason Merrill  <jason@yorick.cygnus.com>

        * cplus-dem.c (do_type): Use demangle_template_value_parm for arrays.

Sun Jul 12 01:27:05 1998  Jason Merrill  <jason@yorick.cygnus.com>

        * fold-const.c (non_lvalue): Don't deal with null pointer 
        constants here.
        (fold, case COMPOUND_EXPR): Wrap a constant 0 in a NOP_EXPR.

Tue Jul 21 15:49:31 1998  David Edelsohn  <edelsohn@mhpcc.edu>

        * rs6000.h (PREDICATE_CODES): Add CONSTANT_P_RTX.
        * rs6000.md (movsi, movdi): Add CONSTANT_P_RTX.
        * rs6000.c (short_cint_operand): Add CONSTANT_P_RTX.
        (u_short_cint_operand): Same.
        (reg_or_cint_operand): Same.
        (logical_operand): Same.
        (input_operand): Same.
        (reg_or_short_operand): Use u_short_cint_operand.

Tue Jul 21 08:56:42 1998  Richard Henderson  <rth@cygnus.com>

        * alpha.md (fix_truncdfsi2, fix_truncsfsi2): Remove the define_expands,
        but keep the insns and splits.  Adjust so when the ultimate destination
        is memory, use cvtql.

Tue Jul 21 08:55:09 1998  Richard Henderson  <rth@cygnus.com>

        * flow.c (regno_uninitialized): Fixed regs are never uninitialized.

Tue Jul 21 00:31:01 1998  Jeffrey A Law  (law@cygnus.com)

        * gcc.c (do_spec): Call "error" not "warning".

        * configure.in: Fix minor problems with gas feature detection code.
        * configure: Rebuilt.

        * gcc.c (do_spec): Issue a warning for '%[]' usage.

        * Undo this change.
        * gcc.c: Delete %[spec] support.
        (do_spec_1, case '('): Likewise.
        (do_spec_1, case '['): Call error.

Mon Jul 20 22:34:17 1998  Richard Henderson  <rth@cygnus.com>

        * alpha.h (CPP_SPEC): Tidy.  Hook to cpp_cpu and cpp_subtarget.
        (CPP_SUBTARGET_SPEC): Default to empty string.
        (CPP_AM_*, CPP_IM_*, CPP_CPU_*, CPP_CPU_SPEC): New.
        (EXTRA_SPECS, SUBTARGET_EXTRA_SPECS): New.
        * alpha/elf.h (LD_SPEC): Use %(elf_dynamic_linker).
        * alpha/linux-elf.h (SUBTARGET_EXTRA_SPECS): New.
        (LIB_SPEC): Tidy.
        * alpha/linux.h (CPP_PREDEFINES): Tidy.
        * alpha/netbsd-elf.h (SUBTARGET_EXTRA_SPECS): New.
        * alpha/netbsd.h (CPP_PREDEFINES): Tidy.
        * alpha/osf.h (CPP_PREDEFINES): Remove bits subsumed by CPP_CPU_SPEC.
        * alpha/win-nt.h (CPP_PREDEFINES): Likewise.
        * alpha/vsf.h (CPP_PREDEFINES): Likewise.
        (CPP_SUBTARGET_SPEC): New.  Do this instead of overriding CPP_SPEC.
        * alpha/vxworks.h: Likewise.

Mon Jul 20 22:51:57 1998  Ken Raeburn  <raeburn@cygnus.com>

        * mips.md (reload_outsi): Added missing REGNO call.
        (smulsi3_highpart, umulsi3_highpart): Provide prototype for
        function pointer.
        (mul_acc_di, mul_acc_64bit_di): Don't use match_op_dup, use
        another match_operator and compare the codes.

        * mips.h (MASK_DEBUG_E, MASK_DEBUG_I): Set to zero.

        * MIPS multiply pattern fixes:
        * mips.h (enum reg_class, REG_CLASS_NAMES, REG_CLASS_CONTENTS):
        Add union classes for HI, LO, or HILO plus general registers.
        (GENERATE_MADD): Deleted.
        * mips.md (mulsi3_mult3): Don't disparage output-LO alternative.
        Add TARGET_MAD to condition.
        (mulsi3): Test HAVE_mulsi3_mult3, not specific flags.
        (mul_acc_si): Expand GENERATE_MADD here; it's the only use.  Use
        "*d" for accumulator, to give preference to LO initially but not
        during reload.

Mon Jul 20 16:16:38 1998  Dave Brolley  <brolley@cygnus.com>

        * configure.in (enable_c_mbchar): New configure option.
        (extra_cpp_objs): Always available now.

        * cexp.y (mbchar.h): #include it.
        (yylex): Handle Multibyte characters in character literals.

        * cccp.c (mbchar.h): #include it.
        (main): Set character set based on LANG environment variable.
        (rescan): Handle multibyte characters in comments.
        (skip_if_group): See above.
        (validate_else): See above.
        (skip_to_end_of_comment): See above.
        (macarg1): See above.
        (discard_comments): See above.
        (rescan): Handle multibyte characters in string and character literals.
        (collect_expansion): See above.
        (skip_quoted_string): See above.
        (macroexpand): See above.
        (macarg1): See above.
        (discard_comments): See above.
        (change_newlines): See above.

        * c-lex.c (mbchar.h): #include it.
        (GET_ENVIRONMENT): New macro.
        (init_lex): Set character set based on LANG environment variable.
        (yylex): Handle multibyte characters in character literals.
        (yylex): Handle multibyte characters in string literals.

        * Makefile.in (mbchar.o): New target.
        (cccp$(exeext)): @extra_cpp_objs@ is always available.
        (cppmain$(exeext)): @extra_cpp_objs@ is always available.

        * mbchar.[ch]: New files for multibyte character handling.

Mon Jul 20 01:11:11 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * jump.c (jump_optimize): When simplifying noop moves and
        PUSH_ROUNDING, fix thinko so we use same criterion for identifying
        the PUSHes to rewrite in second loop as we did in the first.

Sun Jul 19 08:23:53 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * cplus-dem.c (demangle_nested_args): Make function definition
        static to match the prototype.

Fri Jul 17 14:58:44 1998  Richard Henderson  <rth@cygnus.com>

        * alloca.c: Respect USE_C_ALLOCA.
        * gencheck.c (xmalloc): Ignore __GNUC__ for definition.
        * gengenrtl.c (xmalloc): Likewise.

Fri Jul 17 14:18:14 1998  Richard Henderson  <rth@cygnus.com>

        * loop.h (struct induction): Add no_const_addval.
        * loop.c (the_movables, reg_address_cost): New variables.
        (init_loop): Init reg_address_cost.
        (loop_optimize): Call end_alias_analysis.
        (scan_loop): Init the_movables.
        (record_giv): Init induction->no_const_addval.
        (basic_induction_var) [PLUS]: Use rtx_equal_p instead of ==.
        [REG]: Rearrange loop search test to catch more cases.
        (general_induction_var): Return success not benefit; take an extra
        argument for that.  Change all callers.
        (simplify_giv_expr) [PLUS]: Always combine invariants.  Use sge_plus.
        [MULT]: Use rtx_equal_p instead of ==.  Combine simple invariants.
        [default]: Search the_movables for additional combinations.
        (sge_plus_constant, sge_plus): New functions.
        (express_from_1): New function.
        (express_from): Always define.  Rewrite using express_from_1.
        (combine_givs_p): Handle more cases.  Ignore address cost.
        (cmp_combine_givs_stats): New function.
        (combine_givs_used_once, combine_givs_benefit_from): New functions.
        (combine_givs): Rewrite to do best-fit combination.

        * fold-const.c (operand_equal_p): Handle RTL_EXPR.
        (fold): Do a complete (A*C)+(B*C) association check.

Fri Jul 17 11:21:55 1998  Jim Wilson  <wilson@cygnus.com>

        * function.c (fixup_var_refs_insns): Handle CLOBBER of a CONCAT.

Fri Jul 17 11:48:55 1998  Jeffrey A Law  (law@cygnus.com)

        * mn10300.c (MODES_TIEABLE_P): Fix typo.

Fri Jul 17 03:26:12 1998  Rihcard Earnshaw (rearnsha@arm.com)

        * tree.c (valid_machine_attribute): Only create a new type variant if
        there is a decl to use it.

Thu Jul 16 14:48:04 1998  Nick Clifton  <nickc@cygnus.com>

        * gcc.c (do_spec_1): Cope with %g/%u/%U options which do not have
        a suffix.

Fri Jul 17 03:24:40 1998  Hans-Peter Nilsson  <hp@axis.se>

        * extend.texi (Explicit Reg Vars): Typo: change "may deleted" into "may
        be deleted" 

Thu Jul 16 14:48:47 1998  Jeffrey A Law  (law@cygnus.com)

        * mn10300.c (count_tst_insns): New arg oreg_countp.  Callers changed.
        Simplify tests for clearing an address register.
        (expand_prologue): Corresponding changes.

        * mn10300.md (movXX patterns): Make sure the destination is an
        ADDRESS_REG when substituting "zero_areg" for (const_int 0).
        (logical patterns): Split into expanders + patterns
        (zero and sign extension patterns): Similarly.
        (shift patterns): Similarly.

Thu Jul 16 01:17:44 1998  Richard Henderson  <rth@cygnus.com>

        * loop.c (emit_iv_add_mult): Scan the entire insn list generated
        for the sequence, recording base values.

Wed Jul 15 10:49:55 1998  Richard Henderson  <rth@cygnus.com>

        * i386.h (CPP_CPU_SPEC): Remove -Asystem(unix).

Tue Jul 14 14:15:30 1998  Nick Clifton  <nickc@cygnus.com>

        * gcc.c: Remove ANSI-C ism from --help code.

        * toplev.c: Support --help with USE_CPPLIB.

Tue Jul 14 14:46:08 1998  Jeffrey A Law  (law@cygnus.com)

        * configure.in: Rework gas feature code to work with symlink based
        source trees.

        * extend.texi: Clarify some issues related to local variables
        assigned to explicit registers.

        * mn10300.md (mulsi): Turn into expander + pattern.

        * mn10300.md (movsi, movsf, movdi, movdf): Remove "x" from I -> a
        alternative.

Tue Jul 14 07:41:59 1998  Richard Earnshaw (rearnsha@arm.com)

        * arm/tcoff.h (USER_LABEL_PREFIX): Make it empty to match coff.h.

Tue Jul 14 03:02:44 1998  Jeffrey A Law  (law@cygnus.com)

        * version.c: Bump again to distinguish mainline tree from the
        egcs-1.1 branch.

See ChangeLog.0 for earlier changes.

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