* combine.c (known_cond): Do not reverse the condition when

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

2001-02-26  Jason Eckhardt  <jle@redhat.com>

        * combine.c (known_cond): Do not reverse the condition when
        SMAX/UMAX is being considered and the condition is for equality 
        or inequality.

        * testsuite/gcc.c-torture/execute/20010221-1.c: New test.

2001-02-26  Philip Blundell  <philb@gnu.org>

        * config.gcc: Remove obsolete targets "arm*-*-linuxoldld" and
        "armv2-*-linux".
        * config/arm/linux-elf.h: Remove historical relics related to
        above configurations.
        * config/arm/linux-oldld.h: Delete.
        * config/arm/linux-elf26.h: Delete.

2001-02-26  Jason Merrill  <jason@redhat.com>

        * c-decl.c (finish_decl): Set DECL_DEFER_OUTPUT on tentative file-scope
        definitions.
        * toplev.c (rest_of_decl_compilation): Check DECL_DEFER_OUTPUT to
        recognize a tentative definition.  Lose obsolete code.

        * toplev.c (wrapup_global_declarations): Don't emit DECL_COMDAT
        variables unless necessary, either.

2001-02-25  Richard Henderson  <rth@redhat.com>

        * ifcvt.c (struct noce_if_info): Add test_bb.
        (noce_get_alt_condition): New.
        (noce_try_minmax, noce_try_abs): New.
        (noce_operand_ok): New.
        (noce_process_if_block): Use them.
        * rtlanal.c (may_trap_p): NEG and ABS can never trap.

Sun Feb 25 14:26:17 2001  Christopher Faylor <cgf@cygnus.com>

        * config/i386/cygwin.h (CPP_SPEC): Add missing space before w32api
        include.

2001-02-25  Zack Weinberg  <zackw@stanford.edu>

        * config.gcc: Put back pa/t-openbsd and rs6000/t-openbsd.
        * config/mips/mips.c (mips_make_temp_file): Set temp_filename
        properly.
        (mips_asm_file_end): Free temp_filename here.

Sun Feb 25 08:34:23 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * config/i386/i386-protos.h (ix86_set_move_mem_attrs): Move decl.
        * config/i386/i386.c (ix86_set_move_mem_attrs_1): Fix typo.

        * config/i386/i386.md (movstrsi): Handle FAIL case.

2001-02-25  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cppinit.c (builtin_array): Update.
        (init_builtins): Flag builtins to warn if redefined or
        undefined.  Define __GXX_WEAK as a normal macro.
        * cpplib.c (do_undef): Warn if flagged NODE_WARN.
        * cpplib.h (NODE_WARN): New flag.
        * cppmacro.c (builtin_macro): Remove handling of __GXX_WEAK__.
        Handle __STDC__ as a builtin only on Solaris.
        (warn_of_redefinition): Renamed from check_macro_definition.
        Reverse sense of test.  Always warn if NODE_WARN.
        (_cpp_create_definition): Use warn_of_redefinition.  Flag
        any macro beginning with "__STDC_" to require a mandatory
        warning if redefined or undefined.

2001-02-24  Zack Weinberg  <zackw@stanford.edu>

        * xm-interix.h, xm-lynx.h, alpha/xm-vms.h, convex/xm-convex.h,
        i370/xm-i370.h, i370/xm-linux.h, i370/xm-mvs.h, i370/xm-oe.h,
        i386/xm-beos.h, i386/xm-dos.h, i386/xm-mingw32.h,
        i860/xm-i860.h, m68k/xm-3b1.h, m68k/xm-amix.h, m68k/xm-aux.h,
        m68k/xm-crds.h, m68k/xm-mot3300.h, m88k/xm-sysv3.h,
        mips/xm-mips.h, rs6000/xm-beos.h, vax/xm-vms.h:
        Don't define any of:
        USE_PROTOTYPES, vfork, mktemp, SVR3, NO_SYS_PARAMS_H,
        P_tmpdir, MVS, NO_DBX_FORMAT, USE_STDARGS, STDC_HEADERS,
        NO_PRECOMPILES, i860, __PTR_TO_INT, __INT_TO_PTR, rindex,
        index, FULL_PROTOTYPES, AUX, R_OK, W_OK, X_OK, F_OK,
        STACK_DIRECTION, MIPS, MAX_READ_LEN, MAX_WRITE_LEN.

        * alpha/xm-alpha.h, clipper/xm-clix.h, d30v/xm-d30v.h,
        fr30/xm-fr30.h, i370/xm-linux.h: Remove commented-out macro
        definitions.

        * m68k/xm-3b1.h, m68k/xm-crds.h, m88k/xm-sysv3.h:
        Delete now-empty file.

        * alpha/vms.h: Define NEED_ATEXIT here...
        * alpha/xm-vms.h: ...not here.

        * i386/cygwin.h: Don't define PARAMS.
        * mips/mips.c: Don't prototype mktemp.  Don't define
        P_tmpdir.  Use make_temp_file to create temporary files.
        Don't be clever and delete temporary files early.
        * config.gcc: Drop references to deleted files.  Don't define
        FULL_PROTOTYPES.
        * gcc.texi: Don't mention USE_PROTOTYPES.

Sat Feb 24 20:25:29 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * config/i386/i386.c (ix86_set_move_mem_attrs): New function.
        (ix86_set_move_mem_attrs_1): Likewise.
        * config/i386/i386-protos.h (ix86_set_move_mem_attrs): New declaration.
        * config/i386/i386.md (movstrsi): Call it.

2001-02-24  Zack Weinberg  <zackw@stanford.edu>

        * config.gcc: Expunge references to alpha/t-pe, pa/t-openbsd,
        x-linux-aout, i386/t-go32, t-osf, m68k/x-m68kv,
        ns32k/xm-netbsd.h, rs6000/t-openbsd, rs6000/t-xnewas,
        rs6000/x-aix41-gld.  These are nonexistent, empty, or obsolete.

        (i750a-*-*): Error here if hosting on i750a.
        (alpha*-*-winnt*, ix86-*-winnt3*): Remove stanzas entirely.

        * x-linux-aout, xm-freebsd.h, i386/beos-pe.h, ns32k/xm-netbsd.h:
        Remove (empty modulo comments).

        * 1750a/xm-1750a.h, alpha/config-nt.sed, alpha/win-nt.h,
        alpha/xm-winnt.h, i386/config-nt.sed, i386/os2.h,
        i386/t-winnt, i386/win-nt.h, i386/xm-freebsd.h, i386/xm-os2.h,
        i386/xm-winnt.h, m68k/x-alloca-c, m88k/x-dguxbcs,
        mips/x-netbsd, mips/x-nws3250v4, rs6000/t-xnewas,
        rs6000/t-xrs6000, rs6000/xm-cygwin.h: Remove (obsolete)

        * i386/crtdll.h, i386/cygwin.h, i386/mingw32.h:
        Remove reference to winnt.h in comment.
        * rs6000/t-newas, rs6000/t-rs6000: Override LIBGCC1_TEST to null.

2001-02-24  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

        * loop.c (check_dbra_loop): A biv has uses besides counting if it is
        used to set another biv.

Sat Feb 24 06:45:21 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * tree.h (BLOCK_DEAD): New macro.
        (struct tree_block): New flag, dead_flag.
        * print-tree.c (print_node, case 'b'): Print missing fields.
        * emit-rtl.c (remove_unnecessary_notes): Set BLOCK_DEAD.
        * function.c (identify_blocks): Enable test for misplaced notes.
        (all_blocks): Skip BLOCK_DEAD blocks.
        * integrate.c (integrate_decl_tree): Likewise.

        * errors.c (internal_error, trim_filename): New functions.
        (fancy_abort): Call internal_error.
        * errors.h (internal_error, trim_filename): New declarations.

2001-02-24  Alexandre Oliva  <aoliva@redhat.com>

        * config/mn10300/mn10300.h (DBX_REGISTER_NUMBER): Reverted
        2000-08-26's patch.
        (EXTRA_CONSTRAINT): Formatting changes.

2001-02-23  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * rtl.c (rtl_check_failed_code2): Fix typo in last change.

2001-02-23  Per Bothner  <per@bothner.com>

        * gcc.c (record_temp_file, pfatal_with_name, error):  Make non-static,
        so they can be called from java/jvspec.c.
        * gcc.h (record_temp_file, pfatal_with_name, error):  Declare.

Sat Feb 24 03:32:50 CET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.c (ix86_frame): New structure.
        (ix86_compute_frame_size): Kill.
        (ix86_compute_frame_layout): New.
        (ix86_save_reg): New.
        (ix86_can_use_return_insn_p): Use frame layout stuff.
        (ix86_expand_prologue): Likewise.
        (ix86_expand_epilogue): Likewise.
        (ix86_initial_elimination_offset): Likewise.
        (ix86_nsaved_regs): Use ix86_save_reg.
        (ix86_emit_save_regs): Likewise.

Sat Feb 24 03:30:38 CET 2001  Jan Hubicka  <jh@suse.cz>

        * flow.c (find_sub_basic_blocks): New function.
        (split_block): Be ready for basic block introduced by CODE_LABEL.
        (commit_one_edge_insertion): Call find_sub_basic_block.

        * flow.c (make_edges): Add edge from entry for blocks starting with
        label having ALTERNATE_NAME

Sat Feb 24 03:19:42 CET 2001  Jan Hubicka  <jh@suse.cz>

        * function.c (epilogue_done): Be ready for first basic block not
        containing PROLOGUE_END note.
        (reposition_prologue_and_epilogue_notes): Avoid placing
        PROLOGUE_END note between BASIC_BLOCK.

Sat Feb 24 03:17:09 CET 2001  Jan Hubicka  <jh@suse.cz>

        * loop.c (canonicalize_condition): Move to reversed_comparison_code.

2001-02-21  DJ Delorie  <dj@redhat.com>

        * config/i960/i960.h (FRAME_POINTER_REQUIRED): Revert removal of
        check for current_function_has_nonlocal_goto from 1999-11-12.

Fri Feb 23 15:28:39 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * diagnostic.c (trim_filename): No longer static.
        * toplev.h (trim_filename): Declare.
        * rtl.c (rtl_check_failed_bounds): Call internal_error.
        (rtl_check_failed_type1, rtl_check_failed_type2): Likewise.
        (rtl_check_failed_code1, rtl_check_failed_code2): Likewise.
        (rtvec_check_failed_bounds): Likewise.
        * tree.c (tree_check_failed, tree_class_check_failed): Likewise.

        * convert.c (convert_to_integer): Don't do unsigned unless result or
        both inputs are unsigned.

        * fold-const.c (fold_convert): Don't call size_int_type_wide if
        input overflows.

        * c-decl.c (set_block): Set NAMES and BLOCKS from BLOCK.

        * varasm.c (output_constant): Recompute CODE after lang-specific fn.

2001-02-23  Jeffrey Oldham  <oldham@codesourcery.com>

        * Makefile.in (resource.o): Add params.h dependence.
        * params.def (MAX_DELAY_SLOT_LIVE_SEARCH): New parameter.
        * params.h (MAX_DELAY_SLOT_LIVE_SEARCH): Likewise.
        * resource.c: Add dependence on params.h.
        (current_live_regs): Fix explanatory comment.
        (find_basic_block): Add new parameter to permit limiting search
        for a BARRIER.
        (mark_target_live_regs): Add new argument to find_basic_block call.
        (incr_ticks_for_insn): Likewise.

2001-02-23  Gabriel Dos Reis  <gdr@merlin.codesourcery.com>

        * diagnostic.c (output_to_stream): Rename to
        output_buffer_to_stream. Loses the stream parameter.
        (init_output_buffer): Set diagnosic_buffer's stream.
        (flush_diagnostic_buffer): Adjust.
        (default_print_error_function): Likewise.
        (finish_diagnostic): Likewise.
        (verbatim): Likewise.

        * diagnostic.h (struct output_buffer): Add `stream' field.
        (output_buffer_attached_stream): New macro.

2001-02-23  Jakub Jelinek  <jakub@redhat.com>

        * fold-const.c (extract_muldiv) [case PLUS_EXPR]: If not MULT_EXPR,
        check if either operand is divisible by C.
        (multiple_of_p): Handle LSHIFT_EXPR with small constant shift.
        If type is signed, consider negative numbers as well.

2001-02-22  Richard Henderson  <rth@redhat.com>

        * config/ia64/crtbegin.asm (.fini): Use pc-relative relocs to
        reach .text instead of gp-relative relocs.
        * config/ia64/crtend.asm (.init): Likewise.

2001-02-22  Andreas Jaeger  <aj@suse.de>

        * extend.texi (C++ Attributes): Fix typo.

2001-02-21  David Mosberger  <davidm@hpl.hp.com>

        * config/ia64/ia64.c (ia64_epilogue_uses): For syscall_linkage
        functions, drop current_function_args_info.words test.
        (ia64_compute_frame_size): Mark syscall_linkage functions as
        using eight input registers.

2001-02-21  Loren J. Rittle  <ljrittle@acm.org>
        Bruce Korb  <bkorb@gnu.org>

        * fixinc/inclhack.def (freebsd_gcc3_breakage): new fix
        * fixinc/README: Document how to convert sed substitutions
        to format style c_fix-es.
        * fixinc/fixincl.x: regen

2001-02-21  Jeffrey D. Oldham  <oldham@codesourcery.com>

        * gcc.c: Add comment explaining how to add a command-line option.
        Add title to specs language comment.

2001-02-21  Jeffrey Oldham  <oldham@codesourcery.com>

        * gcc.c (cc1_options): Add "-param".
        (DEFAULT_WORD_SWITCH_TAKES_ARG): Likewise.
        (option_map): Likewise.
        * toplev.c (display_help): Add entry for "--param".
        (independent_decode_option): Fix typographical error.

Wed Feb 21 18:57:28 CET 2001  Catherine Moore  <clm@redhat.com>
                              Bernd Schmidt  <bernds@redhat.com>
                              Jan Hubicka  <jh@suse.cz>

        * i386.c (function_arg_advance):  Pass SSE arguments in registers.
        (function_arg): Likewise.

Wed Feb 21 18:12:41 CET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.md (mmx_lshrdi3, mmx_ashldi3): Guard by unspec.

2001-02-21  Kazu Hirata  <kazu@hxi.com>

        * config/h8300/h8300.md (iorsi3): Do not output an extra newline
        character.
        (xorsi3): Likewise.

Wed Feb 21 17:35:24 CET 2001  Jan Hubicka  <jh@suse.cz>

        * flow.c (init_propagate_block_info): Canon address and use single_set
        for killing dead memory stores.

2001-02-21  Jeffrey Oldham  <oldham@codesourcery.com>

        * Makefile.in (reorg.o): Add params.h dependence.
        * params.def: Fix typographical error in comment.
        (MAX_DELAY_SLOT_INSN_SEARCH): New parameter.
        * params.h: Modify introductory comment.
        (MAX_DELAY_SLOT_INSN_SEARCH): New parameter.
        * reorg.c: Add dependence on params.h.
        (redundant_insn): Add parameterized throttle for search.
        (fill_simple_delay_slots): Add a comment explaining a variable.
        Move conditional out of loop, simplifying code.
        (fill_eager_delay_slots): Fix typographical error in comment.

2001-02-20  Aldy Hernandez  <aldyh@redhat.com>

        * tm.texi (REVERSE_CONDEXEC_PREDICATES_P): New macro documentation.

        * flow.c (ior_reg_cond): Use REVERSE_CONDEXEC_PREDICATES_P macro.
        (REVERSE_CONDEXEC_PREDICATES_P): Define macro.

2001-02-21  Jason Merrill  <jason@redhat.com>

        * tree.h (DECL_UNINLINABLE): Move from C++ frontend.
        (struct tree_decl): Add uninlinable bitfield.
        * c-decl.c (duplicate_decls): Set it.
        * integrate.c (function_cannot_inline_p): Check it.

        * dwarf2out.c (add_name_and_src_coords_attributes): Don't add
        DW_AT_MIPS_linkage_name to abstract methods.
        (dwarf2out_abstract_function): Emit class context before calling
        set_decl_abstract_flags.  Don't clear DECL_ABSTRACT.
        (gen_subprogram_die): Remove obsolete code.
        (gen_member_die): Don't include clones in the member list.
        (gen_decl_die): Emit abstract info for clone origin.
        * dwarfout.c (output_type): Don't include clones in the member list.
        * dbxout.c (dbxout_type_methods): Ignore abstract methods.
        * toplev.c (note_deferral_of_defined_inline_function): Don't clear
        DECL_ABSTRACT on a function that already has it set.

        * dwarf2out.c (gen_formal_types_die): Also accept a FUNCTION_DECL.
        (get_subprogram_die): Pass it in.

2001-02-21  Richard Earnshaw  <rearnsha@arm.com>

        * flow.c (mark_set_1): Make not_dead unsigned long.  For
        non-pseudos, use it as a bitmask of the hard regs that
        don't die.

2001-02-21  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cppfiles.c: Update comments.
        (_cpp_read_file): Don't check for NULL filenames any more.
        * cppinit.c (cpp_start_read): Don't do canonicalization of
        in_fname and out_fname.  Use the passed file name exclusively.
        (_cpp_handle_options): Don't treat "-" as a command line option,
        but as a normal filename.
        (_cpp_post_options): Canonicalize in_fname and out_fname.
        * cppmain.c (printer_init): Don't check out_fname for NULL.
        * c-lex.c (orig_filename): Rename cpp_filename for clarity.
        (init_c_lex): Update, and use "" to represent stdin to CPP.
        (yyparse): Update.

2001-02-20  Will Cohen  <wcohen@redhat.com>

        * config/pa/quadlib.c (_U_Qfcnvfxt_quad_to_usgl): New function.
        * config/pa/long_double.h (FIXUNS_TRUNCTFSI2_LIBCALL): Added.
        (INIT_TARGET_OPTABS): Use FIXUNS_TRUNCTFSI2_LIBCALL for
        fixunstfsi_libfunc.

2001-02-20  Stan Shebs  <shebs@apple.com>

        * config/rs6000/rs6000.c (output_cbranch): Output branches
        on separate lines instead of using ';' to separate.

2001-02-20  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cppinit.c (set_lang):  Move builtin handling to...
        (init_builtins): ...here.
        (_cpp_create_reader): Move call to set_lang.

2001-02-20  Mark Mitchell  <mark@codesourcery.com>

        * stmt.c (expand_return): If an attempt is made to return the
        error_mar_node, treat the return like a return without a value.

2001-02-19  Zack Weinberg  <zackw@stanford.edu>

        * sibcall.c (skip_copy_to_return_value): Call
        identify_call_return_value here, and return orig_insn if it
        returns zero.  Hardret and softret arguments now unnecessary.
        (call_ends_block_p): Don't call identify_call_return_value here.

        * ggc-common.c (ggc_mark_rtx_children): No need to mark 'S' or
        's' slots in RTXen.
        * ggc-page.c, ggc-simple.c (ggc_mark_if_gcable): Delete function.
        * ggc.h (ggc_mark_if_gcable): Delete prototype.

Mon Feb 19 20:30:16 2001  Jeffrey A Law  (law@cygnus.com)

        * pa.c (move_operand): Accept code to load the address of a
        symbol out of the DLT as a valid move operand.
        (print_operand, case 'A'): New to handle generating a DLT
        reference for a LO_SUM expression.
        * pa.h (EXTRA_CONSTRAINT): Handle 'A' for DLT LO_SUM references.
        * pa.md (movsi, movdi patterns): Allow DLT LO_SUM references.

2001-02-19  Joseph S. Myers  <jsm28@cam.ac.uk>

        * README, cpp.texi, gcc.texi, version.c: Update version number to
        3.1.
        * cpp.1, gcov.1, gcc.1: Regenerate.

2001-02-19  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cppfiles.c (stack_include_file): Generate dependencies
        here, and manage include_count here too.
        (PRINT_THIS_DEP): Delete.
        (_cpp_execute_include): Do not generate dependencies here,
        apart from the case of a missing header.  Do not manage
        include_count.
        (_cpp_read_file): Leave dependency generation to
        stack_include_file.

Mon Feb 19 10:17:47 2001  Jeffrey A Law  (law@cygnus.com)

        * config.gcc (hppa*64*-*-hpux11*): Add MASK_GAS to
        target_cpu_default.  Remove dead assignment to
        target_cpu_default.

Mon Feb 19 16:47:39 CET 2001  Jan Hubicka  <jh@suse.cz>

        * regclass.c (contains_reg_of_mode): Make global.
        (init_reg_sets): Remove contains_reg_of_mode; take into account
        CLASS_MAX_NREGS when looking for the proper mode.
        (dump_regclass): Dump only classes considered for the pseudo.
        (regclass): Use contains_reg_of_mode.

Mon Feb 19 16:45:42 CET 2001  Jan Hubicka  <jh@suse.cz>

        * gcc.c (do_spec_1): 'n' for printing notices.
        * i386.h (CC1_CPU_SPEC): Notice deprecated options as deprecated.

Mon Feb 19 15:51:30 CET 2001  Jan Hubicka  <jh@suse.cz>

        * reg-stack.c (next_flags_user): Use current_block->end
        (swap_rtx_condition): Look for next user if flags don't die;
        give up on CALL_INSNs; use current_block->end.

Mon Feb 19 08:27:21 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * sibcall.c (call_ends_block_p): New function.
        (optimize_sibling_and_tail_recursive_call): Use it.

2001-02-18  Kazu Hirata  <kazu@hxi.com>

        * config/h8300/h8300.md: Update copyright.
        (andsi3): Do not output an extra newline character.

Sun Feb 18 15:45:17 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * toplev.c (note_deferral_of_defined_inlined_function): Argument
        FNDECL may be unused.

        * toplev.c (rest_of_compilation): Don't have CSE skip blocks or
        follow jumps after first run.
        If -fexpensive-optimizations rerun CSE after GCSE and iterate until
        it doesn't change any jumps.

Sun Feb 18 17:05:50 2001  Jeffrey A Law  (law@cygnus.com)

        * Makefile.in (rtlanal.o): Depend on hard-reg-set.h.
        ($HOST_PREFIX_1)rtlanal.o: Remove rules for building
        (mostlyclean): Corresponding changes.
        * rtlanal.c (hard-reg-set.h): Include.
        (rtx_unstable_p): Do not treat the argument pointer specially
        if it is not a fixed register.
        (rtx_varies_p, rtx_addr_can_trap_p): Similarly.

Sun Feb 18 15:45:17 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * sibcall.c (optimize_sibling_and_tail_recursive_call): Compare
        against last real insn in basic block.
        Rework to avoid gotos.

        * Makefile.in (gcse.o): Now includes ggc.h.
        * gcse.c: Include ggc.h.
        (want_to_gcse_p): Verify expression can be in SET as valid insn.
        (try_replace_reg): Remove warning of uninitialize variable.
        (process_insert_insn): Call invalid_insn_p to validate insn.
        * recog.c (insn_invalid_p): Now global.
        See if can make valid by adding CLOBBERs of SCRATCH only and do if so.
        * recog.h (insn_invalid_p): New declaration.

        * jump.c (jump_optimize_1): Only define reversed_code #ifdef HAVE_trap.

        * config/sparc/sparc.c (eligible_for_epilogue_delay): Don't put
        assignments from FP constants since 'Y' output code can't handle it.
        (eligible_for_sibcall_delay): Likewise.

        * flow.c (print_rtl_and_abort_fcn): Renamed from print_rtl_and_abort.
        Call fancy_abort directly, passing args.
        (print_rtl_and_abort): Now a macro, like fancy_abort.

        * final.c (output_operand_lossage): Use internal_error, not error.

2001-02-18  Shane Nay  <shane@agendacomputing.com>

        * mips.c (mips_expand_prologue) Add REG_MAYBE_DEAD to
        structure shift insns.

2001-02-18  Mark Mitchell  <mark@codesourcery.com>

        * invoke.texi (-fsquangle): Remove documentation.
        (-fname-mangling-version): Likewise.

2001-02-18  Lars Brinkhoff  <lars@nocrew.org>

        * optabs.c (expand_abs): Remove reference to
        HAVE_contitional_arithmetic.
        * combine.c (simplify_set): Likewise.

2001-02-18  Richard Henderson  <rth@redhat.com>

        * ifcvt.c (dead_or_predicable): Don't move code if eh regions
        would be disrupted.

2001-02-18  Richard Henderson  <rth@redhat.com>

        * config/ns32k/ns32k.h (ADJSP): Upcase arguments.

        * config/alpha/alpha.md (movsi_fix): Fix typo in pattern name.

        * reload1.c (reload_cse_simplify_set): Fix typo.

Sun Feb 18 09:30:09 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * diagnostic.c (_fatal_insn): Decrement errorcount.

        * invoke.texi (-I): Add note avoiding use for system header files.

        * rtl.h (add_clobbers): Remove duplicate declaration.
        * recog.h (added_clobbers_hard_reg_p): New declaration.
        * genemit.c (struct clobber_pat): New field has_hard_reg.
        (gen_insn): Record if added clobbers clobber hard reg.
        (gen_split): Avoid unused warning if number of operands is 0.
        (output_added_clobbers_hard_reg_p): New function.
        (main): Call it.

2001-02-18  Alan Modra <alan@linuxcare.com.au>

        * pa.c (hppa_expand_prologue): Simplify code storing return
        pointer.  For large (>=8k) frames with a post_store, adjust stack
        pointer by 8k-64 first rather than by 64.  When testing with
        VAL_14_BITS_P, always use the actual value rather than the value
        negated.  Add blockage to prevent scheduling of spills before
        stack frame has been created.
        (hppa_expand_epilogue): Simplify code loading return pointer.
        Allow a slightly larger range for merge_sp_adjust_with_load case.
        When testing with VAL_14_BITS_P, always use the actual value.

        * pa.c (pa_adjust_insn_length): Check that block move
        pattern is a set before looking at operands.

2001-02-17  Mark Mitchell  <mark@codesourcery.com>

        * fold-const.c (fold_binary_op_with_conditional_arg): New
        function, split out from ...
        (fold): ... here.
        * tree.def (COND_EXPR): Document the use of VOID_TYPE for
        conditional arms that throw exceptions.

        * print-tree.c (print_node): Do not use BLOCK_CHAIN when we're not
        looking at a BLOCK.

2001-02-17  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * aclocal.m4 (gcc_AC_CHECK_DECL): Before attempting the test,
        define HAVE_DECL_* to 1 to mask potential backup declarations.
        * configure: Regenerated.

2001-02-17  Mark Mitchell  <mark@codesourcery.com>

        * invoke.texi (-Woverloaded-virtual): Clarify documentation.

2001-02-17  Richard Henderson  <rth@redhat.com>

        * reload1.c (reload_cse_simplify_set): Respect LOAD_EXTEND_OP
        when replacing a memory load with a register.

Sat Feb 17 14:48:30 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>
                          Jan Hubicka  <jh@suse.cz>

        * recog.c (validate_replace_src_1): New.
        (validate_replace_src_data): Likewise.
        (validate_replace_src): Use note_uses.
        * rtl.h (note_uses): Declare.
        * rtlanal.c (note_uses): New.

Sat Feb 17 10:52:34 CET 2001  Jan Hubicka  <jh@suse.cz>

        * reg-stack.c (stack_def): Make field reg unsigned.
        (remove_regno_note): Unsignetize parameter.

2001-02-16  Jes Sorensen  <jes@linuxcare.com>

        * ia64.c (errata_emit_nops): Add VOIDmode as second argument to
        shladd_operand() call.

2001-02-16  Bruce Korb  <bkorb@gnu.org>
            Rodney Brown  <RodneyBrown@mynd.com>

        * fixinc/mkfixinc.sh: Use C fixincludes for UnixWare 7.
        * fixinc/inclhack.def: Add fixinc.svr4 patterns with matching
        machine restrictions
        * fixinc/fixincl.x: regen

Fri Feb 16 12:41:30 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * gcse.c (hash_scan_set): If cprop, see if REG_EQUAL or REG_EQUIV.
        Don't CSE a nop.
        (hash_scan_insn): Clean up calls to hash_scan_set.
        (compute_kill_rd): REGNO now unsigned.
        (try_replace_reg): Rework to use simplify_replace_rtx.
        (cprop_jump, cprop_cc0_jump): Likewise.
        (cprop_insn): Call find_reg_equal_equiv_note.
        Reflect changes to cprop_jump and cprop_cc0_jump.

        * recog.c (validate_replace_src): Replace in operands of
        ZERO_EXTRACT in SET_DEST.

        * cse.c (new_label_ref): New variable.
        (insert): Set it instead of recorded_label_ref.
        (cse_basic_block): Set recorded_label_ref if new_label_ref use, has
        CODE_LABEL for this function, and not already in REG_LABEL note.

2001-02-16  Jeffrey Oldham  <oldham@codesourcery.com>

        * resource.c (mark_referenced_resources): Fix typo in introductory
        comment.
        * config/mips/abi64.h (SUBTARGET_TARGET_OPTIONS): Fix typo in
        string constant.

2001-02-16  Jason Merrill  <jason@redhat.com>

        * dwarf2out.c (add_bound_info): Don't crash if SAVE_EXPR_RTL is
        NULL.
        (gen_subprogram_die): Don't abort on seeing a second definition if
        the previous one was abstract.  Don't replace an abstract instance
        in the lookup table.

        * dwarf2out.c (dwarf2out_abstract_function): Rename from
        gen_abstract_function.
        * dwarf2out.h: Declare it.
        * toplev.c (note_outlining_of_inline_function): New fn.
        * toplev.h: Declare it.
        * integrate.c (output_inline_function): Call it.
        * c-decl.c (duplicate_decls): Call it when redefining an extern
        inline.  Don't inline the new defn.

        * tree.h (BLOCK_CHAIN): Use BLOCK_CHECK.

2001-02-16  Gerald Pfeifer  <pfeifer@dbai.tuwien.ac.at>

        * .gdbinit: Rename to gdbinit.in.
        * gdbinit.in: New file,
        * configure.in: Generate .gdbinit from gdbinit.in.
        * configure: Regenerated.
        * Makefile.in (distclean): Always remove .gdbinit.

2001-02-16  Jakub Jelinek  <jakub@redhat.com>

        * objc/objc-act.c (start_class): Register implemented_classes with
        GC.

2001-02-16  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cppfiles.c (_cpp_make_system_header): Generate a file
        change callback.

2001-02-15  Jim Meyering  <meyering@lucent.com>

        * Makefile.in (install-common): Don't depend on installdirs here.
        Instead, make each of the lang.install-common targets (e.g.,
        c++.install-common in cp/Make-lang.in) depend on it.
        (install-driver): Depend on installdirs.

Thu Feb 15 21:30:26 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * flow.c (tidy_fallthru_edge): Never end block on line number NOTE.

        * function.c (assign_parms): Set RTX_UNCHANGING_P in pseudo when we
        do in memory.

2001-02-15  Mark Mitchell  <mark@codesourcery.com>

        * invoke.texi (--param): Document.

Thu Feb 15 15:16:38 2001  Alexandre Oliva  <aoliva@redhat.com>

        * config/sh/sh.h (BOOL_TYPE_SIZE): Don't define.

Thu Feb 15 10:52:31 CET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.md (extendsfdf2_2): Fix constraints.

Thu Feb 15 09:46:21 CET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.md (fop_df_3 splitter): Fix operand number.

Wed Feb 14 12:37:37 CET 2001  Jan Hubicka  <jh@suse.cz>

        * invoke.texi (-mreg-alloc): Nuke.
        * i386.c (ix86_reg_alloc_order, regs_allocated,
        order_regs_for_local_alloc): Nuke.
        (override_options): Kill reg_alloc code.
        * i386.h (TARGET_OPTIONS): Kill reg-alloc.
        (REG_ALLOC_ORDER): SSE goes before I387.
        (ORDER_REGS_FOR_LOCAL_ALLOC): Kill.
        (ix86_reg_alloc_order): Likewise.
        * i386-protos.h (ix86_reg_alloc_order): Kill.

2001-02-14  Richard Henderson  <rth@redhat.com>

        * toplev.c (f_options): Clarify -fschedule-insns2 documentation.

Wed Feb 14 11:59:58 CET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.h (RETURN_IN_MEMORY): Fix formating; reject TFmodes

Wed Feb 14 11:12:38 CET 2001  Jan Hubicka  <jh@suse.cz>

        * i386-protos.h (ix86_memory_move_cost): Move offline.
        * i386.c (ix86_register_move_cost): Compute properly cost of
        SSE, MMX and i387 instructions.
        (*_cost): Add costs of SSE/MMX moves.
        (ix86_memory_move_cost): Move offline from ....; Likewise.
        * i386.h (MEMORY_MOVE_COST): .... here;
        (struct processor costs): Add new fields to represent costs
        of SSE/MMX moves.

Wed Feb 14 10:08:26 CET 2001  Jan Hubicka  <jh@suse.cz>

        * regclass.c (init_reg_sets_1): Reinstall the optimization of
        move_cost together with Matt Kraai's fix.

2001-02-14  Jeffrey Oldham  <oldham@codesourcery.com>

        * Makefile.in (OBJS): Add params.o.

2001-02-14  Richard Henderson  <rth@redhat.com>
            DJ Delorie  <dj@redhat.com>

        * jump.c (jump_optimize_1): When we delete a conditional jump
        preceeding a non-conditional jump to effectively the same place,
        make sure that the combined jump skips any clobber insns between
        the two labels.

2001-02-14  Jeffrey Oldham  <oldham@codesourcery.com>

        * gcc.c (do_spec_1): Fix off-by-one error for '%M' case.

2001-02-14  Mark Mitchell  <mark@codesourcery.com>

        * Makefile.in (toplev.o): Depend on params.h.
        (intergate.o): Likewise.
        (params.o): New target.
        * flags.h (inline_max_insns): Remove.
        * integrate.c: Include params.h.
        Use MAX_INLINE_INSNS instead of inline_max_insns.
        * params.c: New file.
        * params.h: Likewise.
        * params.def: Likewise.
        * toplev.c: Include params.h.
        (lang_independent_params): New variable.
        (decode_f_option): Use the param machinery instead of setting
        max_inline_insns.
        (independent_decode_option): Handle "--param name=value".
        (main): Register language-independent parameters.

Wed Feb 14 11:13:45 CET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.md (pushsf, pushdf_nointeger): Fix constraint.

2001-02-14  Richard Henderson  <rth@redhat.com>

        * regclass.c (init_reg_sets_1): Revert last two changes.

2001-02-14  Jakub Jelinek  <jakub@redhat.com>

        * stor-layout.c (is_pending_size, put_pending_size): New functions.
        (variable_size): Call put_pending_size.
        * tree.h (is_pending_size, put_pending_size): Add prototypes.
        * fold-const.c (extract_muldiv): If SAVE_EXPR is on the pending
        sizes list, put newly created SAVE_EXPR there as well.

2001-02-14  Jakub Jelinek  <jakub@redhat.com>

        * config/ia64/ia64.c (last_group): Only 2 entries are needed.
        (errata_find_address_regs): load_group has only 2 entries.
        (errata_emit_nops): Likewise.  shladd is not problematic.
        Clear last_group if nop was emitted.
        (fixup_errata): load_group has only 2 entries.
        Optimize.

2001-02-14  Neil Booth  <neil@daikokuya.demon.co.uk>

        * c-lex.c (lex_number): Only warn traditionally for U suffix
        outside system macros.
        * cppexp.c (parse_number): Similarly.
        * cpplib.h (NODE_SYSHDR, cpp_sys_objmacro_p): New.
        * cppmacro.c (struct cpp_macro): New member node.
        (parse_args): Only warn about missing rest args if not
        a system macro.
        (funlike_invocation_p): Similarly for uninvoked funlike macros.
        (cpp_sys_objmacro_p): New.
        (_cpp_create_definition): Store the node with the macro defn.
        Remember if the macro is defined in a system header.

2001-02-13  DJ Delorie  <dj@redhat.com>

        * configure.in (check_languages): determine languages to check
        * Makefile.in (check-c++): alias for check-g++
        (check-f77): alias for check-g77
        (CHECK_TARGETS): depend on configured languages

Wed Feb 14 01:13:59 CET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.md (fixsfsi2, fixdfdi2): Fix previous patch again.
        (sqrtsf2): Use TARGET_SSE instead of TARGET_SSE2)
        (sqrtsf2 patterns): Use 'x' instead of 'Y'.
        (sqrtextendsfdf2): Disable for SSE2.

Wed Feb 14 00:19:28 CET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.md (fixsfsi2, fixdfdi2): Fix previous patch again.
        (sqrtsf2): Use TARGET_SSE instead of TARGET_SSE2)
        (sqrtsf2 patterns): Use 'x' instead of 'Y'.
        (sqrtextendsfdf2): Disable for SSE2.

Wed Feb 14 00:11:20 CET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.md (movsfcc_1): Support integer cmove instruction.
        (movdfcc_1): Likewise; new splitter.

Tue Feb 13 23:19:27 CET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.c (output_fp_compare): Support SSE.
        (prepare_fp_compare_args): SSE comparisons always support memory.
        * i386.h (TARGET_CMOVE): SSE imply cmove.
        * i386.md (cmp?f2): Enable for SSE too.
        (cmpfp_i*): Support SSE.
        (cmpfp_i_sse): New.
        (cmpfp_i_sse_only): New.
        (s*, b* fp expanters): Enable for SSE too.
        (fp_jcc_1_sse, fp_jcc_1_sse_only, fp_jcc_2_sse, fp_jcc_2_sse_only):
        New patterns.

Tue Feb 13 23:05:42 CET 2001  Jan Hubicka  <jh@suse.cz>

        * regclass.c (init_reg_sets_1): Silence warning.

Tue Feb 13 22:03:07 CET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.md (sqrt?f2): Change to expander.
        (sqrt?f2_1, sqrt?f2_sse_only, sqrt?f2_i387): New.

Tue Feb 13 15:42:05 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * rtlanal.c (find_reg_equal_equiv_note): New function.
        * simplify-rtx.c (simplify_gen_unary, simplify_gen_ternary): New fns.
        (simplify_gen_relational, simplify_replace_rtx): Likewise.
        * rtl.h: Add declarations for above functions.

Tue Feb 13 21:09:11 CET 2001  Jan Hubicka  <jh@suse.cz>

        * cse.c (cse_main): Converts ifdefs on PIC_OFFSET_TABLE_REGNUM to
        conditionals.
        * defaults.h (PIC_OFFSET_TABLE_REGNUM): Default to INVALID_REGNUM.
        * emit-rtl.c (init_emit_once): Convert ifdefs to conditionals.
        * flow.c (mark_regs_live_at_end): Likewise.
        (calculate_global_regs_live): Likewise.
        * gcse.c (compute_hash_table): Likewise.
        (compute_kill_rd): Likewise.
        * resource.c (mark_target_live_regs): Likewise.
        * rtl.h (INVALID_REGNUM): New macro.

Tue Feb 13 20:59:22 CET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.md (fixsfsi2, fixdfdi2): Fix previous patch.

Tue Feb 13 16:32:20 CET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.md (fixsfsi2, fixdfdi2): Force operand to register
        for SSE.

Tue Feb 13 14:53:16 CET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.md (add?f3, sub?f3, mul?f3, dif?f3): Enable for TARGET_SSE(2)
        too.
        (fop_sf_comm, fop_df_comm, fop_sf_1, fop_df_1): Support SSE.
        (fop_sf_comm_sse, fop_df_comm_sse): New patterns.
        (fop_sf_1_sse, fop_df_1_sse): New patterns
        (fop_*): Disable float_extend and float patterns for SSE compilation.
        * i386.c (output_387_binary_op): Support SSE.

Tue Feb 13 14:16:34 CET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.md (dummy_extendsfdf2): Support SSE2
        (extendsfdf2): Enable if 80387 or SSE2.
        (extendsfdf2_1): Support SSE2. Disable if SSE2 is avialble
        and no MIX_I387_SSE2
        (extendsfdf2_1_sse_only): New pattern.
        (truncdfsf2): Enable if SSE2 or 80387; Always use SSE only version
        of SSE.
        (truncdfsf2_1): Support SSE.
        (truncdfsf2_2): Support SSE.
        (truncdfsf2_2_1_sse): New pattern.
        (fixtruncsfsi2): Always use SSE if available.
        (fix_truncsfsi_sse): New pattern.
        (fix_truncdfsi_sse): New pattern.
        (floatsis?f2): Support SSE.
        (floatsidf2_i387): New pattern.
        (floatsidf2_sse): Likewise.

Tue Feb 13 07:52:04 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * configure.in: Use "have_gnat" variable, not "gnat".
        * configure: Regenerated.

        * config/sparc/sparc.c (function_value): Treat all non-record
        aggregate types like used to treat UNION_TYPE.

Tue Feb 13 13:31:33 CET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.c (print_reg): Use ANY_FP_REG instead of FP_REG
        * i386.h (MASK_128BIT_LONG_DOUBLE): Renumber
        (MASK_SSE2): New.
        (MASK_MIX_SSE_I387): New.
        (TARGET_SSE): SSE2 imply SSE.
        (TARGET_SSE2, TARGET_MIX_SSE_I387): New.
        (TARGET_SWITCHES): Add "sse2", "mix-sse-i387".
        (enum reg_class): Add new classes.
        (REG_CLASS_NAMES): Likewise.
        (REG_CLASS_CONTENTS): Likewise.
        (ANY_FP_REG_P, ANY_FP_REGNO_P, SSE_REG_P, SSE_FLOAT_MODE): New macros.
        (REG_CLASS_FROM_LETTER): 'x' and 'y' is SSE_REGS only when SSE is
        supported. Add 'Y' to be SSE_REGS when SSE2 is supported.
        (CLASS_MAX_NREGS): Use new macros.
        (REGISTER_MOVE_COST): Rewrite using SECONDARY_MEMORY_MAYBE_NEEDED.
        * i386.md (pushsf, movsf): Support SSE.
        (pushdf_nointeger, pushdf_integer, pushdf): Support SSE, update
        splitters to use ANY_FP_REGNO_P.
        (movdf_nointeger, movdf_integer): Likewise.

2001-02-13  Alexandre Oliva  <aoliva@redhat.com>

        * combine.c (UWIDE_SHIFT_LEFT_BY_BITS_PER_WORD): New macro.
        (try_combine): Use it.

Tue Feb 13 11:37:06 CET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.h (SSE_CLASS_P, MMX_CLASS_P, MAYBE_FLOAT_CLASS_P,
        MAYBE_SSE_CLASS_P, MAYBE_MMX_CLASS_P): New macros.
        (PREFERRED_RELOAD_CLASS, SECONDARY_MEMORY_NEEDED): Move offline.
        (REGISTER_MOVE_COST): Likewise.
        * i386-protos.h (ix86_secondary_memory_needed,
        ix86_preferred_reload_class, ix86_register_move_cost): Declare.
        * i386.c (ix86_secondary_memory_needed,
        ix86_preferred_reload_class, ix86_register_move_cost): New function.

Die Feb 13 11:04:25 CET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.h (VALID_FP_MODE_P, VALID_INT_MODE_P): New.
        (HARD_REGNO_MODE_OK): Move offline to ....
        * i386.c (ix86_hard_regno_mode_ok) ... here;
        refuse all incorrect modes.
        * i386-protos.h (ix86_hard_regno_mode_ok): Declare.

2001-02-13  Richard Henderson  <rth@redhat.com>

        * sparc.md (cmp_cc_arith_op_set): Don't use match_dup on the
        entire operator; replicate that and match_dup the operands.
        (cmp_ccx_arith_op_set): Likewise.
        (cmp_cc_arith_op_not_set): Likewise.
        (cmp_ccx_arith_op_not_set): Likewise.

2001-02-13  Alexandre Oliva  <aoliva@redhat.com>

        * explow.c (trunc_int_for_mode): Sign-extend value to mode.

2001-02-12  Geoffrey Keating  <geoffk@redhat.com>

        * config/rs6000/sysv4.h (MASK_NO_BITFIELD_WORD): New macro.
        (TARGET_NO_BITFIELD_WORD): New macro.
        (SUBTARGET_SWITCHES): Add -mbit-word, -mno-bit-word options.
        (BITFIELD_NBYTES_LIMITED): Define based on TARGET_NO_BITFIELD_WORD.

Mon Feb 12 18:13:26 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * cselib.c: New file, from simplify-rtx.c.
        * simplify-rtx.c: Remove cselib parts.
        * Makefile.in: Add cselib.o.

2001-02-12  Geoffrey Keating  <geoffk@redhat.com>

        * config/rs6000/rs6000.c (rs6000_float_const): Remove warning.
        (setup_incoming_varargs): Remove warning.

        * config/rs6000/rs6000.c (validate_condition_mode): When
        flag_fast_math, allow floating-point conditionals to be reversed.
        (rs6000_generate_compare): When flag_fast_math, don't generate
        cror operations for FP conditionals.

        * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): Handle
        -mcall-i960.
        (ASM_SPEC): Likewise.
        (CC1_ENDIAN_LITTLE_SPEC): Likewise.
        (CC1_SPEC): Likewise.
        (LINK_TARGET_SPEC): Likewise.
        (CPP_ENDIAN_SPEC): Likewise.
        * Makefile.in (check-consistency): New target.

2001-02-12  Joseph S. Myers  <jsm28@cam.ac.uk>

        * c-decl.c (grokdeclarator): In C99 mode, give the more specific
        "return type defaults" warning for functions with return type
        defaulting to int.
        * c-lang.c (c_init): In C99 mode, enable warnings for implicit
        function declarations by default rather than only when pedantic.

Mon Feb 12 17:28:48 CET 2001  Jan Hubicka  <jh@suse.cz>

        * regclass.c (init_reg_sets_1): Optimize calculation of move_cost
        arrays.

2001-02-12  Nathan Sidwell  <nathan@codesourcery.com>

        * extend.texi (Deprecated): Deprecate new initializer lists.

2001-02-12  Nathan Sidwell  <nathan@codesourcery.com>

        * mkdeps.c (deps_add_default_target): Robustify. Add
        basename component only.
        * cpp.texi (-M): Describe how default target is generated.
        * invoke.texi (-M): Likewise.

2001-02-12  Kazu Hirata  <kazu@hxi.com>

        * toplev.c (push_float_handler): Remove.
        (pop_float_handler): Remove.
        * toplev.h: Remove prototypes for the above functions.

2001-02-12  Jakub Jelinek  <jakub@redhat.com>

        * c-common.c (constant_fits_type_p): New function.
        (convert_and_check): Use it.

2001-02-11  Mark Mitchell  <mark@codesourcery.com>

        * Makefile.in (GXX_ABI_FLAG): Don't define.
        * configure.in (--enable-new-gxx-abi): Remove option.
        * config.in: Regenerated.
        * configure: Likewise.

2001-02-12  Alexandre Oliva  <aoliva@redhat.com>

        * lcm.c (compute_earliest): Let EXIT_BLOCK be handled as a regular
        basic block.
        (optimize_mode_switching) [NORMAL_MODE]: Set up EXIT_BLOCK as a
        regular basic block, and arrange for all edges into it to switch
        to normal mode.

2001-02-11  Gerald Pfeifer  <pfeifer@dbai.tuwien.ac.at>

        * Makefile.in (distclean): Do not remove .gdbinit.

2001-02-11  Mark Mitchell  <mark@codesourcery.com>

        * Makefile.in (gcc.o): Fix typos.
        (protize.o): Likewise.
        (unprotoize.o): Likewise.

2001-02-11  Richard Henderson  <rth@redhat.com>

        * tree.c (build1): Check for null operand in last change.

2001-02-11  Richard Henderson  <rth@redhat.com>

        * fold-const.c (split_tree): Don't assume a constant isn't splittable.
        (fold): Don't assume a constant isn't foldable.
        * tree.c (build): Set TREE_CONSTANT for an expression with no
        side-effects and constant operands.
        (build1): Likewise.

2001-02-10  Richard Henderson  <rth@redhat.com>

        * jump.c (squeeze_notes): Revert 2000-05-12 change.

2001-02-10  Anthony Green  <green@redhat.com>

        * cpp.texi (Standard Predefined): Add documentation for
        __OPTIMIZE_SIZE__.

        * c-common.c (combine_strings): Improve warning message.

2001-02-10  Geoffrey Keating  <geoffk@redhat.com>

        * config/rs6000/sysv4.h (LINK_TARGET_SPEC): Use two dashes for
        --oformat.
        * config/rs6000/sysv4le.h (LINK_TARGET_SPEC): Likewise.

Fri Feb  9 15:05:27 2001  Christopher Faylor <cgf@cygnus.com>

        * config/i386/t-cygwin (T_CPPFLAGS): Use correct location for
        CYGWIN_CROSS_DIR.

2001-02-09  Alexandre Oliva  <aoliva@redhat.com>

        * config/sh/sh.md (sibcalli, sibcalli_pcrel, sibcalli): Set
        fp_mode attribute.

2001-02-09  Nick Clifton  <nickc@redhat.com>

        * config/arm/arm.md: Change output contraint on post inc
        load/store multiple patterns to be a read/write contraint.

2001-02-09  Neil Booth  <neil@daikokuya.demon.co.uk>

        * gcc.c (cpp_options): Delete .d files on error.  Don't delete
        .o files when using the -M options.

2001-02-08  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>
            David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/rs6000.c (output_toc): Allow 32-bit targets to
        handle DImode constants.  Use one TOC entry for SImode and smaller
        constants, aligned properly.

2001-02-08  Jason Merrill  <jason@redhat.com>

        * config/arm/arm.c (arm_expand_prologue): Do tell the dwarf2 backend
        about the SP adjustment for saving the static chain pointer.
        * dwarf2out.c (dwarf2out_frame_debug_expr): Use the specified
        offset when setting a temporary CFA register.

2001-02-08  Chandrakala Chavva  <cchavva@redhat.com>

        * config.gcc : New targets, i386-*-chorusos*, sparc-*-chorusos*,
        powerpc-*-chorusos* .
        * config/rs6000/chorus.h : New file.
        * config/i386/chorus.h : New file.
        * config/sparc/chorus.h : New file.
        * config/sparc/t-chorus-elf : New file.

2001-02-08  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/rs6000.h (ASM_OUTPUT_SYMBOL_REF): Move from here ...
        * config/rs6000/aix.h (ASM_OUTPUT_SYMBOL_REF): ... to here.
        * config/rs6000/aix51.h (CPLUSCPLUS_CPP_SPEC): Define it.
        (__WCHAR_TYPE__): Correct macro name.

2001-02-08  Richard Henderson  <rth@redhat.com>

        * config/i386/i386.c (ix86_frame_pointer_required): New.
        (ix86_setup_frame_addresses): New.
        (struct machine_funciton): Add accesses_prev_frame.
        * config/i386/i386.h (FRAME_POINTER_REQUIRED): Call
        ix86_frame_pointer_required.
        (SUBTARGET_FRAME_POINTER_REQUIRED): New.
        (SETUP_FRAME_ADDRESSES): New.
        * config/i386/i386-protos.h: Update.
        * config/i386/sco5.h (SUBTARGET_FRAME_POINTER_REQUIRED): Rename
        from FRAME_POINTER_REQUIRED.
        * config/i386/svr3gas.h: Likewise.
        * config/i386/sysv3.h: Likewise.
        * config/i386/v3gas.h: Likewise.

2001-02-08  Richard Henderson  <rth@redhat.com>

        * config/sparc/sparc.c (function_arg_record_value_3): Fix
        calculation of the number of integer registers required.
        (function_arg_record_value): Likewise.

2001-02-08  Jason Merrill  <jason@redhat.com>

        * diagnostic.c (internal_error): Say "confused" after 1 error, not
        two.  Print file and line with "confused" message.

        * dwarf2out.c (dwarf2out_line): Include filename in -dA output.

Thu Feb  8 11:21:28 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * rtlanal.c (remove_node_from_expr_list): Correctly update PREV.

2001-02-08  Bernd Schmidt  <bernds@redhat.com>

        * final.c (cleanup_subreg_operands): The address of a MEM can
        contain SUBREGs.

        * config/ia64/ia64.c (ia64_variable_issue): Call group_barrier_needed_p
        for asms, too.

2001-02-08  Joseph S. Myers  <jsm28@cam.ac.uk>

        * gcc.texi (Incompatibilities): Update documentation of
        preprocessing numbers.

2001-02-07  Jakub Jelinek  <jakub@redhat.com>

        * c-decl.c (finish_enum): Revert part of 2000-01-05 change.

2001-02-07  Mark Mitchell  <mark@codesourcery.com>

        * config/rs6000/aix43.h (CPLUSCPLUS_CPP_SPEC): Define it.

        * defaults.h (CPLUSPLUS_CPP_SPEC): New macro.
        * gcc.c (struct compiler): Add cpp_spec field.
        (input_file_compiler): New variable.
        (do_spec_1): Allow a particular compiler to handle `%C'
        specially.
        (main): Store the current compiler in input_file_compiler.
        * tm.texi (CPLUSPLUS_CPP_SPEC): Document.

2001-02-07  Zack Weinberg  <zack@wolery.stanford.edu>

        * cpphash.h (struct spec_nodes): Add n_true and n_false.
        * cppinit.c (cpp_create_reader): Initialize them.
        (append_include_chain): cxx_aware arg might be unused.
        * cppexp.c (lex): In C++ mode, recognize 'true' and 'false'
        keywords and give them their phase 7 meaning.  Pedwarn about
        this unless '__bool_true_false_are_defined' is defined.

2001-02-07  Alexandre Oliva  <aoliva@redhat.com>

        * lcm.c (optimize_mode_switching): Emit mode_set before the
        JUMP_INSN of an abnormal edge.

2001-02-07  Bernd Schmidt  <bernds@redhat.com>

        * builtins.c (expand_builtin_setjmp_receiver): Emit an ASM_INPUT as
        a scheduling barrier at the end.

        * tm.texi (MD_INIT_BUILTINS, MD_EXPAND_BUILTIN): Document.

2001-02-07  Alexandre Oliva  <aoliva@redhat.com>

        * config/sh/sh.md (reload_outsf): Removed.
        (movsf_ie): Introduce constraints for FPUL loads and stores.
        (reload_insf): Broaden the output constraint.

        * config/elfos.h (INT_ASM_OP): Don't define it if it's already
        defined.
        * config/sh/sh.h (INT_ASM_OP, ASM_OUTPUT_CONSTRUCTOR,
        ASM_OUTPUT_DESTRUCTOR): Copy definitions from config/elfos.h.

2001-02-06  Chandrakala Chavva  <cchavva@redhat.com>

        * final.c: Revert my previous changes.
        * output.h: Make profile_label_no extern.
        * config/rs6000/rs6000.c (output_profile_hook): Use standard functions
        for generating label.

2001-02-06  Laurynas Biveinis  <lauras@softhome.net>

        * config/i386/djgpp.h: Add comments about standard paths.
        (MD_EXEC_PREFIX): Undefine before defining.
        (MD_STARTFILE_PREFIX): New.

2001-01-30  Bruce Korb  <bkorb@gnu.org>

        fixinc/fixincl.c(process):  Emit error message only if appropriate :)
        (load_file): do not rely on load_file_data() to close file pointer
        fixinc/fixlib.c(load_file_data): do not close passed in file pointer
        fixinc/inclhack.def(irix_limits_const): add test_text

2001-02-06  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cppexp.c (parse_defined): Improve diagnostics for invalid
        syntax.

2001-02-06  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cppmacro.c (cpp_get_token): Avoid pasting after a builtin.

2001-02-06  Mark Mitchell  <mark@codesourcery.com>

        * config/rs6000/rs6000.h (ASM_OUTPUT_SYMBOL_REF): Define.
        * config/rs6000/rs6000-protos.h (rs6000_output_symbol_ref): Declare.
        * config/rs6000/rs6000.c (VTABLE_NAME_P): New macro.
        (rs6000_output_symbol_ref): New function.
        (output_toc): Use VTABLE_NAME_P.

Tue Feb  6 07:54:51 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * print-tree.c (print_node, case PARM_DECL):
        Print DECL_ARG_TYPE and DECL_ARG_TYPE_AS_WRITTEN.

        * stor-layout.c (reference_types_internal): New variable.
        (internal_reference_types): New function.
        (layout_type, case REFERENCE_TYPE): Make Pmode if internal.
        * tree.h (internal_reference_types): New declaration.

        * cse.c (find_best_addr): Fix typo in computing cost.

Mon Feb  5 21:56:16 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * combine.c (nonzero_bits, case PLUS): If pointers extend unsigned
        and this is the sum of a pointer and a constant, we know the result
        did not overflow.
        (num_sign_bit_copies, case PLUS): Likewise.
        * explow.c (convert_memory_address): Remove opposite SUBREG.
        * function.c (instantiate_new_reg): New function (from common code).
        (instantiate_virtual_regs_1): Call it.
        For PLUS, handle if (plus (subreg (virt-reg) (const_int))
        if pointers sign- or zero-extend.
        * simplify-rtx.c (simplify_unary_operation, case ZERO_EXTEND):
        If pointers extend unsigned, use inside of SUBREG.
        (simplify_unary_operation, case SIGN_EXTEND): Likewise, if sign extend.

2001-02-05  Benjamin Kosnik  <bkoz@redhat.com>

        * Makefile.in (-DGPLUSPLUS_TOOL_INCLUDE_DIR): Change to target
        subdir of gcc_gxx_include_dir.
        (gcc_gxx_target_include_dir): Remove.

2001-02-05  Jeffrey Oldham  <oldham@codesourcery.com>

        * dwarf2out.c: Revise DWARF2 Abbreviation Glossary comments.
        (dwarf2out_frame_debug_expr): Revise introductory comments to add
        a high-level description.

2001-02-05  Chandrakala Chavva  <cchavva@redhat.com>

        * final.c: Move the declaration of profile_label_no to ...
        * output.h: ... here.
        * function.c (expand_function_start): Call PROFILE_HOOK.
        * config/rs6000/aix.h: Define PROFILE_HOOK.
        * config/rs6000/rs6000-protos.h: output_profile_hook new.
        * config/rs6000/rs6000.c (output_profile_hook): Define.
        (output_prolog): Do nothing for ABI_AIX as it is taken care by
        output_profile_hook.
        tm.texi : Explain new macro PROFILE_HOOK.

2001-02-06  Hans-Peter Nilsson  <hp@axis.com>

        * extend.texi (Extended Asm): Do not say that semicolon is always
        a valid line-breaking character for GNU assemblers.  Use
        newline-tab as the most commonly supported syntax.  Use
        newline-tab rather than semicolon in multi-insn examples.

2001-02-05  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

        * Makefile.in (gcc_gxx_target_include_dir): Use $(target_alias).

2001-02-05  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>
            David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/rs6000.c (rs6000_return_addr): Use PIC
        code for AIX, even without flag_pic.

2001-02-05  Jakub Jelinek  <jakub@redhat.com>

        * c-typeck.c (common_type): push and pop binding level around
        calling common_type on function parameters.

Mon Feb  5 14:30:37 2001  Christopher Faylor <cgf@cygnus.com>

        * config/i386/cygwin.h (CPP_SPEC): Add missing space after -idirafter.

Mon Feb  5 11:23:16 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * config/mips/mips.c (override_options): Fix typo in last change.
        (mips_make_temp_file): Call fatal_io_error, not pfatal_with_name.
        (mips_asm_file_end): Likewise; also pass more args to fatal_io_error.

2001-02-05  Nathan Sidwell  <nathan@codesourcery.com>

        * invoke.texi (-fdump-class-layout): Document.
        (-fdump-translation-unit): Use `=' as filename separator.

2001-02-05  Mark Mitchell  <mark@codesourcery.com>

        * Makefile.in (s-mlib): Don't build multilibs if
        --disable-multilib.
        (DRIVER_DEFINES): Adjust accordingly.
        (gcc.o): Likewise.
        (protoize.o): Likewise.
        (unprotoize.o): Likewise.
        * configure.in: Recognize --enable-multilib.

2001-02-04  Mark Mitchell  <mark@codesourcery.com>

        * Makefile.in (DRIVER_DEFINES): Fix quoting.

        * Makefile.in (site.exp): Always set HAVE_LIBSTDCXX_V3.
        * configure.in: Remove --enable-libstdcxx_v3 support.
        * configure: Regenerated.

Sun Feb  4 15:52:44 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * config/avr/avr.h (ASM_OUTPUT_REG_PUSH, ASM_OUTPUT_REG_POP):
        Call abort instead of fatal.
        (TRAMPOLINE_TEMPLATE): Call internal_error instead of fatal.
        * config/dsp16xx/dsp16xx.h (FUNCTION_PROFILER): Likewise.
        (FUNCTION_BLOCK_PROFILER, BLOCK_PROFILER): Likewise.
        (TRAMPOLINE_TEMPLATE, INITIALIZE_TRAMPOLINE): Likewise.
        (ASM_OUTPUT_REG_PUSH, ASM_OUTPUT_REG_POP): Likewise.
        * config/rs6000/rs6000.h (RETURN_ADDRESS_OFFSET): Likewise.

        * diagnostic.h (set_internal_error_function): Renamed.
        * toplev.h (internal_error): Renamed from fatal.
        (pfatal_with_name): Deleted.
        (fatal_io_error): Now has printf-style arguments.
        * diagnostic.c (pfatal_with_name): Deleted.
        (fatal_io_error): Rework to have args in printf-style.
        (set_internal_error_function): Renamed from set_fatal_function.
        (internal_error): Renamed from fatal.
        (error_recursion, fancy_abort): Call internal_error instead of fatal.
        * dwarf2out.c (get_cfa_from_loc_descr): Likewise.
        * emit-rtl.c (gen_realpart, gen_imagpart): Likewise.
        * expr.c (check_max_integer_computation_mode, expand_expr): Likewise.
        * flow.c (verify_flow_info): Likewise.
        * config/arm/arm.c (thumb_unexpanded_epilogue): Likewise.
        * config/mips/mips.c (save_restore_insns): Likewise.

        * except.c (duplicate_eh_handlers): Call abort instead of fatal.
        * flow.c (verify_flow_info): Likewise.
        * config/arm/arm.c (thumb_load_double_from_address): Likewise.
        * config/avr/avr.c (pttreg_to_str, unique_section): Likewise.
        (avr_normalize_condition): Likewise.
        * config/c4x/c4x.c (c4x_emit_libcall, c4x_valid_operands): Likewise.
        * config/dsp16xx/dsp16xx.c (dsp16xx_reg_class_from_letter): Likewise.
        (limit_reload_class, double_reg_to_memory): Likewise.
        (print_operand_address, emit_1600_code_shift): Likewise.
        (gen_tst_reg, gen_compare_reg): Likewise.
        * config/m68hc11/m68hc11.c (m68hc11_emit_libcall): Likewise.
        * config/dsp16xx/dsp16xx.c (dsp16xx_invalid_register_for_compare):
        Deleted.
        * config/dsp16xx/dsp16xx.md (unnamed cmphi): Call abort instead of it.

        * c-parse.in (methoddef): Call fatal_error instead of fatal.
        * objc/objc-act.c (build_ivar_chain): Likewise.
        * dwarfout.c (dwarfout_init): Call fatal_io_error instead of
        pfatal_with_name.
        * graph.c (clean_graph_dump_file): Likewise.
        * profile.c (init_branch_prob): Likewise.
        * objc/objc-act.c (objc_init): Likewise.

        * config/arm/arm.c (arm_override_options): Make errors non-fatal.
        * config/avr/avr.c (avr_override_options): Likewise.
        * config/c4x/c4x.c (c4x_expand_prologue): Likewise.
        * config/dsp16xx/dsp16xx.c (function_prologue): Likewise.
        * config/h8300/h8300.c (h8300_init_once): Likewise.
        * config/mips/mips.c (override_options): Likewise.
        * config/i386/i386.c (override_options): Likewise, rework.
        * config/m68k/m68k.c (override_options): Likewise.

        * config/dsp16xx/dsp16xx.c (print_operand): Call output_operand_lossage
        instead of fatal.
        * config/mips/mips.c (print_operand): Likewise.
        * hash.c (hash_allocate): Don't check for failure returns from
        obstack functions that can't fail.
        (hash_table_init_n, hash_table_init): Likewise; also now return void.
        * hash.h (hash_table_init_n, hash_table_init): Now return void.
        * objc/objc_act.c (objc_check_decl): Remove unneeded fatal call.
        (get_object_reference): Likewise.

2001-02-04  Nick Clifton  <nickc@redhat.com>

        * config/arm/arm.c (all_cores): Add 710T, 720T, 740T, 940T, 9e,
        StrongARM1110, 10TDMI, and 1020T.

2001-02-04  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * mips.h (MULTILIB_ISA_DEFAULT): Don't use #elif.

2001-02-04  Alexandre Oliva  <aoliva@redhat.com>

        * config/sh/sh.md (movdf load split): Pass register number to
        FP_OR_XD_REGISTER_P.

2001-02-04  Mark Mitchell  <mark@codesourcery.com>

        * cppinit.c (BC): New macro.
        (builtin_array): Add __GXX_WEAK__.
        * cpplib.h (builtin_type): Add BT_WEAK.
        * cppmacro.c (builtin_macro): Handle BT_WEAK.
        * defaults.h (SUPPORTS_ONE_ONLY): Define.
        * varasm.c (SUPPORTS_ONE_ONLY): Do not define.

2001-02-03  Jakub Jelinek  <jakub@redhat.com>

        * cppinit.c (append_include_chain): Honor NO_IMPLICIT_EXTERN_C.

2001-02-03  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cpphash.h: Rename _ALIGN POOL_ALIGN.
        * cpplex.c (new_chunk, _cpp_pool_reserve): Update.

2001-02-03  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cpphash.h: Rename ALIGN _ALIGN.
        * cpplex.c (new_chunk, _cpp_pool_reserve): Update.

Fri Feb  2 23:15:29 2001  Christopher Faylor <cgf@cygnus.com>

        * config/i386/cygwin.h (CPP_SPEC): Reorganize YA to better handle cross
        compilation environment.
        * config/i386/t-cygwin (T_CPPFLAGS): Define CYGWIN_CROSS_DIR to allow
        control over location of cygwin includes and libs.

2001-02-03  Michael Hayes  <m.hayes@elec.canterbury.ac.nz)

        * c4x.h (HARD_REGNO_CALL_PART_CLOBBERED): Fix typo.

2001-02-02  lars brinkhoff  <lars@nocrew.org>

        * md.texi (Standard Names): remove reference to spur.md.

2001-02-03  Michael Hayes  <m.hayes@elec.canterbury.ac.nz)

        * c4x.h (IS_INT_CALL_SAVED_REG, IS_FLOAT_CALL_SAVED_REG): Define.
        (HARD_REGNO_CALL_PART_CLOBBERED): Use IS_FLOAT_CALL_SAVED_REG.
        (INITIAL_FRAME_POINTER_OFFSET, INITIAL_ELIMINATION_OFFSET): Likewise.
        * c4x.c (c4x_hard_regno_rename_ok): Use IS_XXX_CALL_SAVED_REG.
        (c4x_expand_prologue, c4x_expand_epilogue): Likewise.

2001-02-03  Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

        * c4x.c (group1_reg_operand, group1_mem_operand, arx_reg_operand,
        c4x_arn_reg_operand, c4x_arn_mem_operand): Do not check register
        number before reload.
        (c4x_adjust_cost): Return zero before reload.
        * c4x.md (load_immed_address+1, load_immed_address+2): Do not
        split before reload.

2001-02-03  Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

        * c4x.c (c4x_hard_regno_rename_ok): New.
        * c4x-protos.h (c4x_hard_regno_rename_ok): New.
        * c4x.h (HARD_REGNO_RENAME_OK): Define.

Fri Feb  2 20:03:50 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * diagnostic.h: Add missing "extern" in all declarations.

2001-02-02  Alex Samuel  <samuel@codesourcery.com>

        * Makefile.in (gcc_gxx_target_include_dir): Generate dynamically
        as for gcc_gxx_include_dir.

2001-02-02  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cpp.texi, invoke.texi: Update -Wtraditional documentation.

2001-02-02  Alexandre Oliva  <aoliva@redhat.com>

        * config/sh/sh.c (output_far_jump): Don't use braf on SH1.  Emit
        label before alignment to be used as the braf base address.
        * config/sh/sh.md (length): Use longer lengths for SH1 PIC far
        branches.
        (casesi_jump_2): Require at least TARGET_SH2.

        * config/float-sh.h (LDBL_EPSILON, LDBL_MIN, LDBL_MAX): Prevent
        truncation to 32-bit doubles on -m3e and -m4-single-only.

2001-02-02  Mark Mitchell  <mark@codesourcery.com>

        * gcc.c (init_gcc_specs): New function.  Make -shared-libgcc
        the default when building a shared object.
        (init_spec): Use it.
        * testsuite/lib/g++.exp: Include the directory where libgcc
        is located to the LD_LIBRARY_PATH list.
        * invoke.texi (-shared-libgcc): Document the cases in which
        GCC defaults to using the shared libgcc.

2001-02-02  Alexandre Oliva  <aoliva@redhat.com>

        * config/fp-bit.h (MAX_USI_INT, MAX_SI_INT): Don't assume
        unsigned is wide enough.
        (BITS_PER_SI): New.
        * config/fp-bit.c (_fpmul_parts): Don't assume 32-bits SI.
        (si_to_float): Likewise.
        (float_to_si, float_to_usi): Use BITS_PER_SI.

2001-02-01  Jeffrey Oldham  <oldham@codesourcery.com>

        * dwarf2out.c: Added explanation of abbreviations.
        (def_cfa_1): Added comments listing DWARF2 instructions.
        (cfa_temp_reg): Removed in favor of cfa_temp.
        (cfa_temp_value): Removed in favor of cfa_temp.
        (cfa_temp): New global variable.
        (dwarf2out_frame_debug_expr): Added extensive introductory
        comments explaining the function's transformations.  Revised to
        use cfa_temp.  Added some rtx checking.  Generalize IOR case.
        (dwarf2out_frame_debug): Revised to use cfa_temp.
        (output_aranges): Cast as "unsigned" to avoid warning.
        * rtl.texi (RTX_FRAME_RELATED_P): Revise entry to emphasize better
        explain which instructions must be marked.

2001-02-01  Richard Henderson  <rth@redhat.com>

        * local-alloc.c (update_equiv_regs): Copy INSN_CODE to the
        new instruction.

2001-02-01  Alexandre Oliva  <aoliva@redhat.com>

        * config/sh/crt1.asm (main_k): Modified so that start calls
        ___setup_argv_and_call_main.

2001-02-01  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cpphash.h (struct cpp_buffer): Move saved_flags from cpp_reader.
        * cpplex.c (_cpp_lex_token): New token picks up the saved flags,
        and AVOID_LPASTE is cleared on meeting an unescaped newline.
        * cppmacro.c (builtin_macro): Set builtin flags here.
        (paste_all_tokens): Preserve AVOID_LPASTE on pasted token.
        (replace_args): Clarify intent.
        (cpp_get_token): Macro expansion tokens get the saved flags.
        Update.
        * cppmain.c (scan_buffer): Remove now-redundant print.printed
        check.

2001-02-01  Jeffrey Oldham  <oldham@codesourcery.com>

        * config/mips/iris6.h (SUPPORTS_INIT_PRIORITY): Reverse change of
        2001-Jan-29.

Thu Feb  1 07:22:41 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * builtins.c (expand_builtin_alloca): allocate_dynamic_stack_space
        returns Pmode pseudo, but we need ptr_mode.
        * explow.c (allocate_dynamic_stack_space): Use plus_constant.
        Remove bogus conversions; use HOST_WIDE_INT for size.
        Don't use TARGET if wrong mode.

        * config/i386/i386.c (ix86_compute_frame_size): Allow
        stack_alignment_needed to be non-default even if size is zero.

2001-01-31  Alan Modra <alan@linuxcare.com.au>

        * (hppa_init_pic_save): Emit the pic offset table
        reg save after last_parm_insn.
        * pa.c (hppa_init_pic_save): New function.
        * pa.h (hppa_init_pic_save): Declare.
        * pa.md (call, call_value, sibcall, sibcall_value): Use
        the above instead of duplicated code.

        * pa.c (hppa_encode_label): Correct size of alloca buffer
        so we don't overrun it.  Correct leading `*' case.
        * pa.h (STRIP_NAME_ENCODING): Simplify now that we don't
        need to handle `*@'.
        (FUNCTION_NAME_P): Likewise.

2001-01-31  Richard Henderson  <rth@redhat.com>

        * config.gcc (alpha-osf5): Use float-i128.h.

        * config/float-i128.h (FLT_EVAL_METHOD, DECIMAL_DIG): Define.
        * config/float-i32.h: Likewise.
        * config/float-i64.h: Likewise.
        * config/float-sh.h: Likewise.
        * config/float-sparc.h: Likewise.

2001-01-31  DJ Delorie  <dj@redhat.com>

        * expmed.c (extract_bit_field): allow non-integral modes if we
        want to extract a whole register from itself.

2001-01-31  Jakub Jelinek  <jakub@redhat.com>

        * c-typeck.c (set_init_index): If first is equal to last, assume as
        if it was not a range at all.

2001-01-31  Alexandre Oliva  <aoliva@redhat.com>

        * config/fp-bit.c: Include tm.h.
        (float_to_si): Don't assume SImode is 32-bits wide.
        (float_to_usi): Likewise.

2001-01-31  Joseph S. Myers  <jsm28@cam.ac.uk>

        * c-parse.in (structsp): Pedwarn when "enum foo" refers to an
        incomplete type.
        (typename): Call pending_xref_error after parsing typed_typespecs.
        * c-decl.c (lookup_tag): Give error immediately rather than
        leaving it pending if the tag of the wrong type is in the same
        binding level.
        (xref_tag): Don't pedwarn for forward declarations of enum types
        here.
        * gcc.texi (Actual Bugs): Remove entry for misuse of struct, union
        and enum tags.

2001-01-31  Alexandre Oliva  <aoliva@redhat.com>

        * config/float-sparc.h (LDBL_MAX) [sparc32]: Fix typo.

2001-01-31  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cpplib.c (T_ELIF): Move to STDC89, not that it matters.
        (_cpp_handle_directive): Suggest not using #elif with -Wtraditional.

2001-01-31  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cpphash.h (struct cpp_reader): New saved_flags.
        * cppmacro.c (cpp_get_token): Use saved_flags to remember
        to avoid a paste after a pasted token.

2001-01-31  Alexandre Oliva  <aoliva@redhat.com>

        * libgcc2.h (Wtype_MAX, Wtype_MIN): Define.
        * libgcc2.c (__fixunssfSI, __fixunsdfSI, __fixunsxfSI): Use
        Wtype_MIN instead of LONG_MIN.

2001-01-30  Jeffrey Oldham  <oldham@codesourcery.com>

        * fixinc/fixincl.tpl: Add 2001 to copyright.  Change name of
        README file.
        * fixinc/fixincl.x: Regenerated.
        * fixinc/inclhack.def (irix_limits_const): New definition to
        convert "const" to "__const" in limits.h.

2001-01-30  Jeffrey Oldham  <oldham@codesourcery.com>

        * fixinc/genfixes (AG): Fix "autogen4" thinko.

2001-01-30  Herman A.J. ten Brugge  <Haj.Ten.Brugge@net.HCC.nl>

        * regmove.c (try_auto_increment): Change REG_DEAD into REG_UNUSED
        when register dies in the insn.

2001-01-30  Neil Booth  <neil@daikokuya.demon.co.uk>

        * diagnostic.c (fatal): Fix word wrap.

2001-01-30  Alexandre Oliva  <aoliva@redhat.com>

        * combine.c (try_combine): Fix SUBREG setting for
        HOST_BITS_PER_WIDE_INT >= 2 * BITS_PER_WORD.

2001-01-30  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

        * jump.c (comparison_dominates_p): Don't try to handle UNKNOWN
        comparison codes.

2001-01-30  Neil Booth  <neil@daikokuya.demon.co.uk>

        * c-decl.c (c_expand_body): Check TYPE_SIZE_UNIT (ret_type)
        is not NULL.
        * toplev.c (decode_W_option): Update warn_larger_than
        unconditionally for each processed switch.

2001-01-30  John David Anglin  <dave@hiauly1.hia.nrc.ca>

        * pa.c (pa_init_machine_status): Initialize pic_offset_table_save_rtx
        to NULL_RTX.
        (hppa_expand_prologue): Delete code to save pic offset table register
        in the function prologue.
        * pa.h (PIC_OFFSET_TABLE_SAVE_RTX): Correct type in comment.
        * pa.md (call, call_value, sibcall, sibcall_value): Save the pic offset
        table register at the beginning of the function after the prologue.

2001-01-29  lars brinkhoff  <lars@nocrew.org>

        * tm.texi (PUSH_ROUNDING): Remove duplicate lines.

2001-01-29  John David Anglin  <dave@hiauly1.hia.nrc.ca>
            Jeff Law <law@redhat.com>

        * pa.md (return): Revise comment for trivial return.
        (return_internal): Non-trivial return pattern for non-PIC code.
        (return_internal_pic): Non-trivial return pattern for PIC code.
        It uses the PIC register to ensure it is restored after
        function calls.
        (epilogue): Generate appropriate return for PIC and non-PIC code.

Mon Jan 29 23:53:14 2001  Christopher Faylor <cgf@cygnus.com>

        * config/i386/cygwin.h: Fix -mno-cygwin search path for link.

2001-01-29  DJ Delorie  <dj@redhat.com>

        * combine.c (if_then_else_cond): Pass the correct mode to
        operand_subword() for constants.

Mon Jan 29 20:38:19 2001  Christopher Faylor <cgf@cygnus.com>

        * config/i386/cygwin.h: Add w32api to include search.  Search different
        directories in a cross-build environment.

2001-11-29  Tim Josling  <tej@melbpc.org.au>

        * tree.h (TYPE_STUB_DECL): Add documentation.

2001-11-29  Laurynas Biveinis  <lauras@softhome.net>

        * sdbout.c (sdbout_one_type): Skip types with indeterminate size.
        (sdbout_field_types): Likwise.  Fix use of host_integerp.

2001-01-29  Thomas Pfaff  <tpfaff@gmx.net>

        * mingw32.h: Override STARTFILE_SPEC and LINK_SPEC declared in
        cygwin.h.

2001-01-29  Jeffrey Oldham  <oldham@codesourcery.com>

        * config/mips/iris6.h (SUPPORTS_INIT_PRIORITY): Revise definition
        to use flag_gnu_linker.

2001-01-29  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cpplib.c (T_BAD_DIRECTIVE): Remove.
        (_cpp_init_stacks): Loop from 0 to N_DIRECTIVES - 1.

2001-01-29  Joseph S. Myers  <jsm28@cam.ac.uk>

        * tree.c, tree.h (build_parse_node): Remove; was identical to
        build_nt.
        * c-lang.c (start_cdtor), objc/objc-act.c
        (build_module_descriptor): Use build_nt instead of
        build_parse_node.

2001-01-29  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/i386.md (addqi_1_lea): Fix mode (QI instead of HI).
        (testqi_1, andqi_2): If widening to SImode, make sure CONST_INT does
        not have any upper bits set.

2001-01-29  Phil Edwards  <pme@sources.redhat.com>

        * COPYING.LIB:  Update to LGPL 2.1 from the FSF.

2001-01-28  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * stmt.c (estimate_case_costs): Use integer_minus_one_node.

        * tree.c (build_common_tree_nodes_2): Set integer_minus_one_node.

        * tree.h (tree_index): Add new element TI_INTEGER_MINUS_ONE.
        (integer_minus_one_node): Define.

2001-01-28  Alexandre Oliva  <aoliva@redhat.com>

        * Makefile.in (bootstrap2-lean): Fix typo.

2001-01-28  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cpphash.c (_cpp_cleanup_hashtable, _cpp_lookup_with_hash)
        : Don't set fe_value.
        * cpplib.h (AVOID_LPASTE): New flag.
        (struct cpp_hashnode): Remove fe_value.
        * cpplex.c (cpp_avoid_paste): Don't paste '.' with a number.
        * cppmacro.c (builtin_macro): Don't set flags here.
        (replace_args): Set AVOID_LPASTE flag on first token of an
        argument, and the token following it.
        (cpp_get_token): Set AVOID_LPASTE flag on first token of a
        macro expansion, and on the token following it.  Do it for
        builtins too.
        * cppmain.c (scan_buffer): Avoid pasting only flagged tokens.

2001-01-27  Richard Henderson  <rth@redhat.com>

        * config/alpha/t-ieee: Remove multilibbing.
        (TARGET_LIBGCC2_CFLAGS): Add -mieee.

2001-01-27  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * configure.in: Arrange to include defaults.h in [ht]config.h/tm.h.

        * Makefile.in: Remove all dependencies on defaults.h.
        * builtins.c: Don't include defaults.h.
        * c-common.c: Likewise.
        * c-decl.c: Likewise.
        * c-pragma.c: Likewise.
        * c-typeck.c: Likewise.
        * combine.c: Likewise.
        * i386.c: Likewise.
        * frame-ia64.c: Likewise.
        * cppexp.c: Likewise.
        * crtstuff.c: Likewise.
        * dbxout.c: Likewise.
        * dwarf2out.c: Likewise.
        * dwarfout.c: Likewise.
        * emit-rtl.c: Likewise.
        * except.c: Likewise.
        * expr.c: Likewise.
        * final.c: Likewise.
        * frame-dwarf2.c: Likewise.
        * libgcc2.c: Likewise.
        * optabs.c: Likewise.
        * profile.c: Likewise.
        * sdbout.c: Likewise.
        * toplev.c: Likewise.
        * tradcif.y: Likewise.
        * tree.c: Likewise.
        * varasm.c: Likewise.

2001-01-27  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (expand_builtin_fputs): Use size_one_node when
        transforming into fwrite.

2001-01-27  Joseph S. Myers  <jsm28@cam.ac.uk>

        * extend.texi (Attribute Syntax): New section.

2001-01-27  Michael Sokolov  <msokolov@ivan.Harhan.ORG>

        * fixproto: Correctly install synthesised unistd.h and stdlib.h when
        they didn't need fixing.

2001-01-27  Janis Johnson <janis@us.ibm.com>

        * config.gcc (i[34567]86-sequent-{ptx4*,sysv4*}): Use usegas.h
        if appropriate.
        * config/ptx4.h: Several fixes to build on DYNIX/ptx v4.[456], and
        to remove macro definitions that are duplicated from elfos.h.

2001-01-27  Richard Henderson  <rth@redhat.com>

        * config/i386/sco5gas.h: Move ...
        * config/usegas.h: ... here.
        * config.gcc (i[34567]86-*-sco3.2v5) [tm_file]: Update.

2001-01-27  Jakub Jelinek  <jakub@redhat.com>

        * c-typeck.c (struct constructor_stack): Add range_stack member.
        (really_start_incremental_init): Clear it.
        (push_init_level): Save constructor_range_stack and clear it if
        pushing explicit braces.
        (pop_init_level): abort if constructor_range_stack is non-zero at
        explicit closing brace.  Restore saved constructor_range_stack if
        not implicit.

2001-01-27  Alexandre Oliva  <aoliva@redhat.com>

        * expr.c (emit_move_insn): Add REG_EQUAL note when constant loaded
        into register was forced into memory.

2001-01-27  Alexandre Oliva  <aoliva@redhat.com>

        * Makefile.in: Remove uses of + before $(MAKE).

2001-01-26  Richard Henderson  <rth@redhat.com>

        * stmt.c (cost_table): Remove.
        (COST_TABLE, cost_table_initialized): New.
        (estimate_case_costs): Use the later instead of the former.
        (balance_case_nodes): Likewise.

2001-01-26  Richard Henderson  <rth@redhat.com>

        * alias.c (objects_must_conflict_p): Read-only slots may not
        conflict despite having the same type.

2001-01-27  Michael Hayes  <mhayes@redhat.com>

        * loop.c (loop_giv_reduce_benefit): Copy mode size into
        int variable.
        (check_ext_dependant_givs): Initialise u_start_val and
        u_end_val.
        (load_mems): Make last_max_reg unsigned.
        (try_swap_copy_prop): Use INSN_P and initialise set.

Fri Jan 26 23:22:58 2001  Denis Chertykov  <denisc@overta.ru>

        * README.AVR : Removed.

Fri Jan 26 11:37:26 2001  Jeffrey A Law  (law@cygnus.com)

        * pa-64.h (text_section): Remove declaration.

        * pa.md (return_internal): Remove mode on PIC register use.

2001-01-25  lars brinkhoff  <lars@nocrew.org>

        * tm.texi (DATA_ALIGNMENT, LOCAL_ALIGNMENT, ASM_OPEN_PAREN,
        ASM_CLOSE_PAREN): fix typos.

2001-01-25  Mark Mitchell  <mark@codesourcery.com>

        * acconfig.h: Define `const' to the empty string if neither
        __STDC__ nor __cplusplus is defined.
        * config.in: Regenerated.

2001-01-25  David Edelsohn  <edelsohn@gnu.org>

        * config.gcc (rs6000-ibm-aix[5-9]*): Change to aix51.h.
        * collect2.c (main): Delete importf.  Add ".obj" file extension.
        (GCC_CHECK_HDR): Handle AIX V5 new magic number.
        (aix_std_libs): Add additional AIX libraries to skip.
        * config/rs6000/aix.h (MY_ISCOFF): Add AIX V5 new magic number.
        * config/rs6000/aix51.h: New file.

2001-01-25  Michael Hayes  <mhayes@redhat.com>

        * loop.c (loop_call_insn_emit_before, loop_call_insn_hoist): New.
        (loop_insn_emit_before): No longer static.
        (move_movables): Replace emit_insn_after with loop_insn_emit_after.
        (loop_givs_rescan, load_mems): Likewise.
        (check_dbra_loop): Replace emit_insn_before with loop_insn_emit_before.
        (maybe_eliminate_biv_1):
        (move_movables): Replace emit_call_insn_before with
        loop_call_insn_hoist.
        * loop.h (loop_insn_emit_before): Add.
        * unroll.c (copy_loop_body): Replace emit_insn_before with
        loop_insn_emit_before.

2001-01-25  Neil Booth  <neil@daikokuya.demon.co.uk>

        * diagnostic.c (fatal): Request preprocessed source.

Thu Jan 25 02:01:16 2001  J"orn Rennecke <amylaar@redhat.com>

        * c-decl.c (duplicate_decls): If different_binding_level is nonzero,
        olddecl has argument types and newdecl has none, use the argument
        types from olddecl.

2001-01-24  Ulrich Drepper  <drepper@redhat.com>

        * dwarf2out.c (prefix_of): New function.  Determine longest common
        prefix of the two arguments.  The units are whole path components.
        (output_file_names): When adding a new directory find the one entry
        with the longest common prefix already in the list.  Artificially
        generate entry if there is none for this prefix.
        Fix test to check whether the zeroth directory entry is used.

Wed Jan 24 23:51:55 2001  J"orn Rennecke <amylaar@redhat.com>

        * reload1.c (reload_reg_free_for_value_p): New parameter start_regno.
        Changed all callers.  Take it into account when deciding if a
        previously loaded value matches.

2001-01-24  Richard Henderson  <rth@redhat.com>

        * reload.c (find_reloads_subreg_address): Fail the substitution
        if the resulting address is insufficiently aligned.

2001-01-24  DJ Delorie  <dj@redhat.com>

        * combine.c (combine_simplify_rtx): If the modes are all VOIDmode,
        check the original operand's mode also.
        * simplify-rtx.c (simplify_ternary_operation): Ditto.

2001-01-24  Joseph S. Myers  <jsm28@cam.ac.uk>

        * c-parse.in (cast_expr): Move compound literals from here ...
        (primary): ... to here.  Use standard terminology "compound
        literal" instead of "constructor expression".

2001-01-24  Joseph S. Myers  <jsm28@cam.ac.uk>

        * gcc.1, cpp.1: Regenerate.

2001-01-24  Alexandre Oliva  <aoliva@redhat.com>

        * calls.c (emit_library_call_value_1): Memory slot for
        pass-by-reference argument should have the mode of the argument,
        not of the pointer to it.

2001-01-24  Tom Tromey  <tromey@redhat.com>

        * gcc.texi (G++ and GCC): Mention gcj manual.
        (Standards): Link to section of manual mentioning gcj/Java
        compatibility.

2001-01-24  Jakub Jelinek  <jakub@redhat.com>

        * cppfiles.c (_cpp_read_file): Add to dependencies if requested.
        * cppinit.c (cpp_start_read): Remove deps_add_dep call.
        * tradcpp.c (main): Add -imacros or -include'd dependencies
        for -M*.
        * cpp.texi (-M, -MM): Document -M -include behaviour.

2001-01-24  Roger Collins <roger@ProProject.com>

        * config/i386/xm-i386.h: Make __i386__ a boolean macro.

2001-01-24  Will Cohen  <wcohen@redhat.com>

        * config/mips/abi64.h (RETURN_IN_MEMORY): Always take into account
        whether registers are 32 bits or 64 bits in size.

2001-01-24  Ben Elliston  <bje@redhat.com>

        * config/m32r/m32r.h (PREDICATE_CODES): Remove m32r_not_same_reg.

2001-01-24  Richard Henderson  <rth@redhat.com>

        * config/alpha/alpha.md (builtin_longjmp_internal): New.
        (builtin_longjmp): Use it instead of emit_indirect_jump.

2001-01-23  John David Anglin  <dave@hiauly1.hia.nrc.ca>

        * bb-reorder.c (make_reorder_chain_1): Handle case where
        jump edge goes to the same block as the fallthru edge.

2001-01-23  Jim Wilson  <wilson@redhat.com>

        * dwarf2out.c (dwarf2out_line): Make last_file_num be unsigned.
        * frame.h (__ia64_personality_v1): Add prototype.
        * libgcc2.c (ia64_throw_helper): Change personality declaration to
        prototype form.  Add void * cast to first argument to personality
        call.
        * real.c (e113toe): Surround with INTEL_EXTENDED_IEEE_FORMAT ifdefs.
        (asctoe113): Likewise.
        * config/ia64/frame-ia64.c: Include eh-common.h.
        * config/ia64/ia64-protos.h (sdata_section, sbbs_section): Add
        prototypes.
        * config/ia64/ia64.c (emit_insn_group_barriers): Add ATTRIBUTE_UNUSED
        to dump parameter.
        (itanium_split_issue): Add prototype.
        (gen_nop_type): Ifdef out.
        (find_best_packet): Initialize best_packet.
        (ia64_encode_section_info): New local string.  Use for ggc_alloc_string
        result.
        * config/ia64/ia64.h (ASM_OUTPUT_LONG_DOUBLE): Use 0L not 0.
        * config/ia64/ia64.md (bsp_value): Add explicit stop bit at start.
        (flushrs): Add explicit stop bit at end.
        * config/ia64/lib1funcs.asm (__ia64_restore_stack_nonlocal): Change
        trailing \ to >.

2001-01-23  Chris Demetriou  <cgd@broadcom.com>

        * libgcc-std.ver (GCC_3.0): Add __terminate_func_set to list
        of EH symbols.
        * libgcc2.c (__terminate_func): Make variable static.
        (__terminate_set_func): New function to set __terminate_func.
        * libgcc2.h (__terminate_func_ptr): New typedef.
        (__terminate_set_func): New function.

2001-01-23  Richard Henderson  <rth@redhat.com>

        * flow.c (init_propagate_block_info): Don't consider unchanging
        memories for dead frame store elimination.

2001-01-23  Richard Henderson  <rth@redhat.com>

        * varasm.c (UNIQUE_SECTION): Move default implementation ...
        * defaults.h: ... here.

2001-01-24  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * c4x.h (TARGET_LOAD_DIRECT_MEMS): Define.

2001-01-23  Neil Booth  <neil@daikokuya.demon.co.uk>

        * c-lex.c (lex_charconst): Fix typo: s/p/str.

2001-01-23  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

        * rs6000.h (rs6000_return_addr): Move prototype from here...
        * rs6000-protos.h (rs6000_return_addr): ...to here.
        (rs6000_init_expanders): Delete prototype.

2001-01-23  Nick Clifton  <nickc@redhat.com>

        * invoke.texi: Replace , with \, inside @gccoptlist macros.
        (Spec Files): Document %B and %j and %. and %v3 and %M and
        %{S*&T} spec switches.

2001-01-24  Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

        * c4x.c (c4x_r11_set_p): Calculate rtx code correctly.

2001-01-23  Chris Demetriou  <cgd@sibyte.com>
            Neil Booth  <neil@daikokuya.demon.co.uk>

        * cpperror.c: Merge handlers of PEDWARN and WARNING.
        Have -Werror make pedantic warnings errors, like the
        rest of GCC.

2001-01-23  Phil Edwards  <pme@sources.redhat.com>

        * c-tree.texi (IDENTIFIER_LENGTH):  Fix typo.

2001-01-23  Jakub Jelinek  <jakub@redhat.com>

        * integrate.h (struct inline_remap): Add compare_src, compare_mode.
        * integrate.c (expand_inline_function): Initialize them.
        (subst_constants): If changing COMPARE so that both its arguments
        will be VOIDmode and the comparison mode will be lost, note
        compare_mode.  Use the recorded compare_mode to optimize
        IF_THEN_ELSE.

2001-01-23  Jason Merrill  <jason@redhat.com>

        * dwarf2out.c (new_die): Use xcalloc.
        (output_die): Abort rather than emit a local reference to offset 0.

2001-01-17  Andrew Haley  <aph@redhat.com>

        * libgcc2.c (get_reg_addr): Don't abort if we haven't got a copy
        of a saved register; return NULL instead.
        (copy_reg): Take a pointer to a source register rather than a
        frame_state.
        (next_stack_level): Remember the address in the stack frame of all
        saved registers.
        Use the saved register pointer array as the source of the CFA.
        (throw_helper): Rewrite.  Unwind once rather than twice and keep
        track of saved registers as we go.

2001-01-23  Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

        * c4x-protos.h (c4x_legitimize_reload_address): Remove.
        * c4x.c (c4x_legitimize_reload_address): Remove.
        * c4x.h (LEGITIMIZE_RELOAD_ADDRESS): Rewrite to generate correct
        reload address for ldp(k) insn.

Mon Jan 22 20:53:47 2001  Jeffrey A Law  (law@cygnus.com)

        * pa.md (return_internal): Add a USE of the PIC register to ensure
        it is restored after each call.
        (return expander): Corresponding changes.

2001-01-22  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

        * rs6000.h (INIT_EXPANDERS): Delete.
        (RETURN_ADDR_RTX): Call rs6000_return_addr().
        * rs6000.c (rs6000_override_options): Call *_machine_status from
        here...
        (rs6000_init_expanders): ...instead of here. Delete.
        (rs6000_mark_machine_status): New function.
        (rs6000_init_machine_status): Use xcalloc.
        (rs6000_return_addr): Generate RTX for the return address.
        (rs6000_ra_ever_killed): New, check if LR was ever destroyed.
        (rs6000_stack_info): Use it.

2001-01-22  Thomas Pfaff  <tpfaff@gmx.net>

        * gthr-win32.h: Include errno.h to get a declaration for
        EINVAL and _mingw.h if the target is mingw32.

2001-01-22  Andres Felipe Vargas <avargas@teletulua.com.co>

        * cpp.texi: Correct typos.

Mon Jan 22 13:59:09 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * explow.c (probe_stack_range): Ensure value passed to
        stack_check_libfunc is ptr_mode, not Pmode.

Mon Jan 22 16:53:06 2001  J"orn Rennecke <amylaar@redhat.com>

        * recog.c (validate_replace_rtx_1): In ZERO_EXTEND / SIGN_EXTEND
        case, don't use operand_subword to calculate a SUBREG that is
        wider than a word.

        * rtl.texi: Comparisons yield 0 or STORE_FLAG_VALUE.

2001-01-22 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

        * c4x.c (c4x_valid_rptb_p, c4x_label_ref_used_p): New functions.
        (c4x_rptb_insert): Call c4x_valid_rptb_p to check if repeat block is
        valid.  If not replace it by equivalent insns.

2001-01-22 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

        * c4x.c (c4x_check_legit_addr): Only check CONST.  Not if CONST
        contains SYMBOL_REF, LABEL_REF and CONST_INT.
        (c4x_U_constraint, symbolic_address_operand): Likewise.
        (c4x_immed_float_constant): Do not check if CONST_DOUBLE is in
        memory.
        (c4x_r11_set_p, c4x_check_laj_p): New functions.
        * c4x-protos.h (c4x_check_laj_p): Add prototype.
        * c4x.md (in_annul_slot_3): Do not allow auto-increment in last
        anulling slot because of silicon bug.
        (laj, lajv): Call c4x_check_laj_p to check for silicon bug.

2001-01-22  Alan Modra <alan@linuxcare.com.au>

        * cppexp.c (parse_charconst):  Change `mask' type to agree
        with parse_escape.

2001-01-21  Richard Henderson  <rth@redhat.com>

        * config/i386/i386.c (ix86_asm_file_end): Disable putting
        pic_label_name in a linkonce section.

2001-01-17  Philipp Thomas  <pthomas@suse.de>

        * aclocal.m4 (AM_WITH_NLS): Add -lintl to LIBS if gettext was
        found in libintl.
        * configure: Regenerate.

Sun Jan 21 02:38:56 2001  J"orn Rennecke <amylaar@redhat.com>

        * expmed.c (synth_mult, expand_mult_highpart, expand_divmod): Guard
        uses of shift_cost, shiftadd_cost and shiftsub_cost with bound checks.

Sun Jan 21 09:44:17 2001  Denis Chertykov  <denisc@overta.ru>

        * config/avr/avr.c (ret_cond_branch): New argument (reverse) added.
        If REVERSE nonzero then condition code in X must be reversed.
        (encode_section_info): Optimise if/else.
        (avr_function_value): Fix formatting.

        * config/avr/avr.md (branch): Call to ret_cond_branch changed.
        (difficult_branch): Likewise.
        (rvbranch): Likewise.
        (difficult_rvbranch): Likewise.

        * config/avr/avr-protos.h (ret_cond_branch): Prototype changed.

        * config/avr/libgcc.S: Fix comment.

2001-01-20  Michael Sokolov  <msokolov@ivan.Harhan.ORG>

        * sdbout.c (PUT_SDB_DEF): Fix after last bogus change.

2001-01-20  Michael Sokolov  <msokolov@ivan.Harhan.ORG>

        * cppinit.c (INO_T_EQ): Don't use #elif, fix formatting.

2001-01-20  Michael Sokolov  <msokolov@ivan.Harhan.ORG>

        * aclocal.m4 (gcc_AC_FUNC_STRSTR): New macro.
        * configure.in (gcc_AC_FUNC_STRSTR): Add invokation.
        * configure, config.in: Regenerate.
        * Makefile.in (STRSTR, HOST_STRSTR, USE_HOST_STRSTR): New variables.
        (LIBDEPS, HOST_LIBDEPS, LIBS, HOST_LIBS): Add strstr handling.
        (strstr.o, $(HOST_PREFIX_1)strstr.o): New rules.
        (doprint.o): New rule.

2001-01-20  Joseph S. Myers  <jsm28@cam.ac.uk>

        * c-typeck.c (digest_init): Handle boolean types as scalars.

Sat Jan 20 12:46:57 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * stmt.c (expand_return): Don't return anything if size is zero.
        Delete redundant assignment to BYTES.
        * expr.c (move_block_from_reg): Do nothing if NREGS is zero.

2001-01-20  Marek Michalkiewicz  <marekm@linux.org.pl>

        * config/avr/avr.h (INIT_TARGET_OPTABS): Remove most of it, was
        the same as the default library function names.
        * config/avr/avr.md: Document special characters after '%'.
        (mulqi3, mulhi3, mulsi3): Call libgcc.S functions ourselves,
        knowing which of the call-used registers are really clobbered.
        (divmodqi4, udivmodqi4, divmodhi4, udivmodhi4, divmodsi4, udivmodsi4):
        New.  Both quotient and remainder from one libgcc.S call.
        * config/avr/libgcc.S: Optimize mul/divmod for the new insns above,
        clobber as few registers as possible.
        * config/avr/t-avr (LIB1ASMFUNCS): Adjust for the above changes.

2001-01-20  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cppmacro.c (funlike_invocation_p): Don't move back up to the
        context of the top of the stack.

2001-01-20  Jakub Jelinek  <jakub@redhat.com>

        * function.c (fixup_var_refs): Move CALL_PLACEHOLDER handling...
        (fixup_var_refs_insns): ...here.

2001-01-20  Zack Weinberg  <zack@wolery.stanford.edu>

        * function.c (fixup_var_refs_insns): Break up into
        fixup_var_refs_insn [body of loop], fixup_var_refs_insns
        [loop over entire insn list], and fixup_var_refs_insns_with_hash
        [loop over hash table entries].
        (fixup_var_refs): Adjust calls to fixup_var_refs_insns and/or
        fixup_var_refs_insns_with_hash, to match above changes.

2001-01-19  John David Anglin  <dave@hiauly1.hia.nrc.ca>

        * Makefile.in (ORDINARY_FLAGS_TO_PASS): Add MAKEOVERRIDES variable.
        (libgcc.a): Likewise.
        (stmp-multilib): Likewise.
        (STAGE2_FLAGS_TO_PASS): Likewise.

2001-01-19  Alexandre Oliva  <aoliva@redhat.com>

        * config/sh/sh.c (prepare_move_operands) [PIC]: Use operands[0] as
        temporary if no_new_pseudos.

2001-01-19  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cppinternals.texi: Update.

2001-01-19  Richard Earnshaw  <rearnsha@arm.com>

        * arm.c (arm_init_builtins): Re-enable builtins.

Fri Jan 19 13:02:56 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * rtl.texi (SET, CLOBBER): Document PARALLEL as SET_DEST possibility.
        * flow.c (mark_set_1, case PARALLEL): Don't require BLKmode, allow
        element to be null, and always expect an EXPR_LIST.
        * rtlanal.c (reg_overlap_mentioned_p, note_stores): Likewise.
        * sched-deps.c (sched_analyze_1): Likewise.
        * sched-rgn.c (check_live_1, update_live_1): Likewise.

        * regclass.c (max_set_parallel): New variable.
        (reg_scan): Take it into account in computation of max_parallel.
        (reg_scan_mark_refs, case SET): Compute it.

        * alias.c (rtx_equal_for_memref_p, case ADDRESSOF): Don't assume
        args are REG.
        * expr.c (store_constructor): Don't look at MEM_ALIAS_SET unless MEM.
        * function.c (assign_parms): Use INTVAL for a CONST_INT.

2001-01-19  Jason Merrill  <jason@redhat.com>

        * dwarf2out.c (gen_subprogram_die): Don't reuse the in-class decl
        for the abstract instance of an inline function.

Fri Jan 19 14:31:35 2001  Alexandre Oliva  <aoliva@redhat.com>
                          J"orn Rennecke <amylaar@redhat.com>

        * reload1.c (move2add_note_store): Treat all registers directly or
        indirectly derived from a base register as members of the same set
        of values.
        (reload_cse_move2add): Adjust accordingly.  Take mode and offset
        of base register into account.

Fri Jan 19 09:18:42 2001  J"orn Rennecke <amylaar@redhat.com>

        * alias.c (find_base_value): Recognize TRUNCATE.
        (record_set): In PLUS case, invalidate if other summand is also a
        base value.

Thu Jan 18 06:43:04 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * flow.c (mark_set_1, case PARALLEL): New case; rework to allow
        entry to be EXPR_LIST.
        * rtlanal.c (reg_overlap_mentioned_p): Allow PARALLEL in SET to
        be an EXPR_LIST (but not null, which other code doesn't allow).
        (note_stores): Properly handle PARALLEL in SET.
        Recursively call for top-level PARALLEL.
        * sched-deps.c (sched_analyze_1): Handle EXPR_LIST in PARALLEL in SET.
        * sched-rgn.c (check_live_1, update_live_1): Likewise.

        * config.gcc (rs6000-ibm-aix*, rs6000-bull-bosx): Add rs6000/aix.h.

2001-01-18  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cpplib.c (_cpp_handle_directive): Use buffer->was_skipping,
        not pfile->skipping (== 0).

2001-01-17  Nick Clifton  <nickc@redhat.com>

        * config/rs6000/rs6000.c: Add prototypes for {init|free}_
        machine_status.

2001-01-17  Jim Wilson  <wilson@redhat.com>

        * invoke.texi (IA-64 options): Improve.

2001-01-17  Tom Tromey  <tromey@redhat.com>

        * invoke.texi (Optimize Options): Use `{}' to around @samp
        argument.

2001-01-17  Aldy Hernandez  <aldyh@redhat.com>

        * invoke.texi (-fno-guess-branch-probability): New option.

Wed Jan 17 13:26:34 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * combine.c (try_combine): Don't set i3_subst_into_i2 for
        case of making new double-word constant.
        Revert last change: instead just test i3_subst_into_i2.

2001-01-17  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/i386.md (cmpqi_minus_1): Use {b} for QImode operation.
        Use q constraints instead of r.

Tue Jan 16 22:23:04 2001  Alan Modra (alan@linuxcare.com.au)

        * config/pa/pa.h (PIC_OFFSET_TABLE_REGNUM_SAVED): Remove.
        (machine_function): Define.
        (PIC_OFFSET_TABLE_SAVE_RTX) : Define.
        * config/pa/pa.c (pa_init_machine_status, pa_mark_machine_status,
        pa_free_machine_status): New functions.
        (override_options): Set {init,mark,free}_machine_status to above.
        (hppa_expand_prologue): Use PIC_OFFSET_TABLE_SAVE_RTX instead of
        PIC_OFFSET_TABLE_REGNUM_SAVED.
        * config/pa/pa.md: Use PIC_OFFSET_TABLE_SAVE_RTX instead of
        PIC_OFFSET_TABLE_REGNUM_SAVED throughout.
        * config/pa/pa32-regs.h (CONDITIONAL_REGISTER_USAGE): Remove
        references to PIC_OFFSET_TABLE_REGNUM_SAVED.
        * config/pa/pa64-regs.h (CONDITIONAL_REGISTER_USAGE): Likewise.

2001-01-15  DJ Delorie  <dj@redhat.com>

        * Makefile.in (gcov.1): Protect against texi2pod/pod2man failing.
        (cpp.1): Ditto.
        (gcc.1): Ditto.

Tue Jan 16 17:20:43 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * flow.c (propagate_on_insn): Make trying to delete a prologue
        or epilogue insn an ICE, not a warning.  Allow doing this if
        the current function returns with stack pointer depressed.

        * combine.c (try_combine): If i3_subst_into_i2, properly check for
        I3 having more than one SET.

2001-01-16  Jim Wilson  <wilson@redhat.com>

        * invoke.texi: Document IA-64 options.

        * config/ia64/ia64.c (ia64_print_operand_address): Delete 'B' support.
        (fixup_errata): Delete TARGET_A_STEP use.
        * config/ia64/ia64.h (MASK_A_STEP, TARGET_A_STEP): Delete.
        (TARGET_SWITCHES): Delete -ma-step option.
        * config/ia64/ia64.md (all FP patterns): Delete %B0.
        (movqicc_astep, movqi_internal_astep, movhicc_astep,
        movhi_internal_astep, movsicc_astep, movsi_internal_astep, movdi+1,
        movdi_internal_astep, movsfcc_astep, movsf_internal_astep,
        movdfcc_astep, movdf_internal_astep, movtfcc_astep,
        movtf_internal_astep, cmovdi_internal_astep, cmovsi_internal_astep):
        Delete.
        (movqi_internal, movhi_internal, movsi_internal, movdi_internal,
        movsf_internal, movdf_internal, movtf_internal, cmovdi_internal,
        cmovsi_internal): Delete ! TARGET_A_STEP check.

2001-01-16  Gerald Pfeifer  <pfeifer@dbai.tuwien.ac.at>

        * gcc.texi (Bug Lists): Do not mention newsgroups nor the
        possibility to report bugs via postal mail. Change a URL and
        merge in a nearly duplicate statement...
        (Bug Reporting): ...from here.
        (Service): Refer to the Bug Reporting section instead of
        duplicating an URL.
        (Contributing): Remove trivial explanations concerning snapshots.

2001-01-16  Alan Modra <alan@linuxcare.com.au>

        * cppmain.c (general_init): Don't use ANSI prototype.

2001-01-16  Tom Tromey  <tromey@redhat.com>

        * gcc.c (cpp_options): Added `*' to specs for -MF, -MQ, and -MT.

2001-01-16  Richard Henderson  <rth@redhat.com>

        * config/i386/i386.h: Fix comment typo.
        * config/i386/i386.md (shift+compare pattern names): s/cmpno/cmp/
        (ashr+compare patterns): Match CCGOCmode not CCNOmode.

2001-01-16  Phil Edwards  <pme@sources.redhat.com>

        * gcc.c:  Revert previous -fsyntax-only-related change; move
          to cp/g++spec.c.

2001-01-16  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/i386.c (fcmov_comparison_operator): Only initialize
        inmode after checking GET_CODE (op).

2001-01-16  Richard Henderson  <rth@redhat.com>

        * flow.c (struct propagate_block_info): Add mem_set_list_len.
        (MAX_MEM_SET_LIST_LEN): New.
        (propagate_one_insn): Update mem_set_list_len.
        (invalidate_mems_from_autoinc): Likewise.
        (invalidate_mems_from_set): Likewise.
        (mark_used_regs): Likewise.
        (init_propagate_block_info): Likewise.  Stop collecting memories
        when we reach MAX_MEM_SET_LIST_LEN.
        (mark_set_1): Likewise.

2001-01-16  Richard Henderson  <rth@redhat.com>

        * unroll.c (precondition_loop_p): Fail if no iteration
        variable found.

2001-01-16  Phil Edwards  <pme@sources.redhat.com>

        * gcc.c:  When -fsyntax-only is given, do not complain about
          unused libraries.

2001-01-15  Richard Henderson  <rth@redhat.com>

        * config/i386/i386.c (asm_output_function_prefix): Remove.
        (ix86_asm_file_end): New.
        (load_pic_register): Generate pic_label_name into a
        staticly allocated buffer.
        * config/i386/i386-protos.h: Update.
        * config/i386/i386.h (ASM_OUTPUT_FUNCTION_PREFIX): Remove.
        (ASM_FILE_END): New.
        * config/i386/i386afe.h: New file.
        * config.gcc (i?86-*-elf) [tm_file]: Use it.
        (i?86-*-{freebsd,linux*,moss*}): Likewise.
        * config/elfos.h (ASM_FILE_END): Undef before redefinition.
        * config/i386/cygwin.h (ASM_FILE_END): Likewise.
        * config/i386/osfrose.h (ASM_FILE_END): Invoke ix86_asm_file_end.
        * config/i386/sco5.h (ASM_FILE_END): Likewise.
        * config/i386/winnt.c (i386_pe_asm_file_end): Likewise.

2001-01-15  Joseph S. Myers  <jsm28@cam.ac.uk>

        * Makefile.in (install-man): Remove explicit dependency on
        $(srcdir)/gcc.1.

        * configure.in, configure: Revert previous patch requiring perl
        5.6.0.

2001-01-12  Aldy Hernandez  <aldyh@redhat.com>

        * toplev.c (flag_guess_branch_prob): New.
        (f_options): Add guess-branch-probability option.
        (rest_of_decl_compilation): Only estimate branch probability if
        flag set.
        (main): set flag_guess_branch_prob.

        * flags.h (flag_guess_branch_prob): New.

2001-01-15  DJ Delorie  <dj@redhat.com>

        * gcc.texi (Makefile): Add documentation for Makefile targets.

2001-01-15  Philip Blundell  <philb@gnu.org>

        * config/arm/arm.c (arm_finalize_pic): New arg "prologue".
        (is_pic): Delete.
        * config/arm/arm-protos.h (arm_finalize_pic): Update prototype.
        (is_pic): Delete declaration.
        * config/arm/arm.h (FINALIZE_PIC): Update call to arm_finalize_pic.
        (OUTPUT_INT_ADDR_CONST): Remove special handling of PIC address.
        * config/arm/arm.md (builtin_setjmp_receiver): New.

2001-01-15  Richard Earnshaw  <rearnsha@arm.com>

        * arm.c (use_return_insn): Don't try to determine the function type
        until after reload has completed.
        (arm_output_epilogue): Don't adjust the sp value recovered from the
        stack.
        (emit_multi_reg_push): Don't record dwarf information for the pc.
        * arm.md (eh_epilogue): The function type may have changed, so it
        needs to be recalculated.
        * arm/netbsd.h (DWARF2_UNWIND_INFO): Delete.  Can now use dwarf2
        unwind tables on arm/netbsd.

2001-01-15  Richard Earnshaw  <rearnsha@arm.com>

        * arm.md (cbranchsi4): Correct calculation of branch ranges.
        (negated_cbranchsi4): Likewise.

2001-01-15  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/semi.h (SUBTARGET_EXTRA_SPECS): Define.
        (SUBTARGET_EXTRA_ASM_SPEC): Define to empty string.
        (ASM_SPEC): Call subtarget_extra_asm_spec.  Don't
        pass -mapcs-* options to assembler.
        * config/arm/elf.h (SUBTARGET_EXTRA_SPECS): Define.
        (SUBTARGET_EXTRA_ASM_SPEC): Define to empty string.
        (ASM_SPEC): Call subtarget_extra_asm_spec.

2001-01-15  Andreas Jaeger  <aj@suse.de>

        * config/i386/i386.c (ix86_init_builtins): Make i size_t to remove
        warnings.
        (ix86_expand_builtin): Likewise.

        * gencodes.c (output_predicate_decls): Make i size_t to avoid
        warning about comparison between signed and unsigned.

2001-01-14  Geoffrey Keating  <geoffk@redhat.com>

        * expr.c (do_jump): Treat VOIDmode CONST_DOUBLEs like CONST_INTs.

2001-01-14  Ralf Baechle <ralf@gnu.org>

        * config/mips/linux.h (SUBTARGET_CPP_SPEC): Default ABI is 32; change
        SUBTARGET_CPP_SPEC apropriatly.

2001-01-12  Mark Mitchell  <mark@codesourcery.com>

        * varasm.c (make_decl_rtl): Fix typo in last change.

2001-01-14  Jeffrey Oldham  <oldham@codesourcery.com>

        * defaults.h (SUPPORTS_INIT_PRIORITY): New macro to indicate the
        linker supports the init_priority C++ attribute.
        * tm.texi (SUPPORTS_INIT_PRIORITY): Documentation for new macro.
        * config/mips/iris6.h (SUPPORTS_INIT_PRIORITY): Indicate Irix
        linker does not support init_priority C++ attribute.

Sun Jan 14 22:31:30 2001  J"orn Rennecke <amylaar@redhat.com>

        * Makefile.in (libgcc1-test.o): Depends on stmp-int-hdrs.

2001-01-14  Neil Booth  <neil@daikokuya.demon.co.uk>

        * c-parse.in (finish_parse): Add comment about cpp_destroy.
        * cp/lex.c (finish_parse): Similarly.
        * cppinit.c (cpp_cleanup): Rename cpp_destroy for clarity.
        Return the number of errors encountered.
        * cpplib.h (cpp_cleanup): Rename cpp_destroy, return int.
        * cppmain.c (main): Don't call cpp_destroy.

2001-01-14  Joseph S. Myers  <jsm28@cam.ac.uk>

        * configure.in: Require at least perl 5.6.0 to regenerate
        manpages.
        * configure: Regenerate.

2001-01-14  Richard Henderson  <rth@redhat.com>

        * genrecog.c (DT_veclen_ge): New.
        (add_to_sequence) [MATCH_PARALLEL]: Generate one.
        (maybe_both_true_2): Simplify DT_veclen vs DT_veclen_ge.
        (nodes_identical_1): Handle DT_veclen_ge.
        (write_cond, debug_decision_2): Likewise.

2001-01-14  Richard Earnshaw  <rearnsha@arm.com>

        * arm.md (ldmsi_postinc, ldmsi, stmsi_postinc, smsi): Delete.  Replace
        with ...
        (ldmsi_postinc[432], ldmsi[432], stmsi_postinc[432], stmsi[432]): New.

2001-01-14  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cppmain.c (do_preprocessing): New function; most of the old
        main.
        (main): Call it to do most of the work.
        (cb): Move from global scope to set_callbacks ().
        (setup_callbacks): Get the callback pointer.
        (general_init, printer_init): Clean up code and comments.

2001-01-14  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/semi.h (ASM_SPEC): Pass -k to the assembler when
        compiling PIC.

2001-01-14  Kazu Hirata  <kazu@hxi.com>

        * config/h8300/h8300.c (get_shift_alg): Update comments.

Sun Jan 14 06:20:49 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * ggc-page.c (alloc_annon): Call perror and correctly call exit.
        (alloc_page, ggc_alloc): Add casts to remove warnings.

2001-01-14  Geoffrey Keating  <geoffk@redhat.com>

        * combine.c (simplify_comparison): Don't change `code' when
        can't reverse comparison.

2001-01-14  Richard Henderson  <rth@redhat.com>

        * rtlanal.c (computed_jump_p_1): Rename from jmp_uses_reg_or_mem;
        update all call sites.  Return true for all non-label constants.

Sun Jan 14 10:09:48 MET 2001  Jan hubicka  <jh@suse.cz>

        * i386.c (ix86_expand_compare): Add bypass_test and second_test
        parameters.
        (ix86_expand_branch): Update.
        (ix86_expand_setcc): Update to handle multiple test conditions.
        (expand_int_movcc): Likewise.
        (expand_fp_movcc): Likewise.
        * i386-protos.h (ix86_expand_compare): New.
        * i386.md (andqi_?_slp, orqi_?_slp): New.
        (conditional trap expander): Update call to ix86_expand_compare.

2001-01-14  Richard Henderson  <rth@redhat.com>

        * config/vax/vax.md: Use nonimmediate_operand instead of
        general_operand in destinations.

        * config/vax/vax.md (indirect_jump): Use register_operand.

        * config/vax/vax.h (RETURN_POPS_ARGS): Max at 255 arguments.
        * config/vax/vax.md (call_pop): Turn into an expander.
        (call_value_pop): Likewise.
        (call, call_value): New.

2001-01-14  Andreas Jaeger  <aj@suse.de>

        * config/i386/i386.c (ix86_split_fp_branch): Remove unused
        variables.
        (ix86_fp_compare_mode): Add unused attribute.
        (ix86_expand_fp_movcc): Remove unused variable.
        (ix86_expand_builtin): Make fcode unsigned.

        * expr.c (MOVE_BY_PIECES_P): Cast MOVE_RATIO to unsigned.
        (expand_expr): Add cast to avoid signed warning.
        (store_field): Likewise.
        (store_constructor_field): Likewise.
        (store_constructor): Likewise.
        (store_expr): Likewise.
        (clear_storage): Likewise.
        (emit_group_store): Likewise.
        (emit_group_load): Likewise.

2001-01-13  Joseph S. Myers  <jsm28@cam.ac.uk>

        * c-common.c: Move format checking code to ...
        * c-format.c: ... here.  New file.  Reorder some functions and
        declarations.
        (decl_handle_format_attribute, decl_handle_format_arg_attribute):
        New functions.
        * c-common.h (decl_handle_format_attribute,
        decl_handle_format_arg_attribute): Declare.
        * Makefile.in (C_AND_OBJC_OBJS): Add c-format.o.
        (c-common.o): Adjust dependencies.
        (c-format.o): New list of dependencies.

2001-01-13  Jakub Jelinek  <jakub@redhat.com>

        * unroll.c (loop_iterations): If we cannot prove iteration variable
        is set once in each iteration, punt.

Sun Jan 14 00:23:15 2001  Denis Chertykov  <denisc@overta.ru>

        * config/avr/avr.md ("strlenhi"): Remove clobber of input address.
        (*strlenhi): Remove clobber (which was buggy) of output address.

2001-01-13  Joseph S. Myers  <jsm28@cam.ac.uk>

        * Makefile.in (generated-manpages): Add gcc.1
        ($(srcdir)/gcc.1): New target.
        (maintainer-clean): Delete $(srcdir)/gcc.1.
        * gcc.texi: Add macros @gccoptlist and @gol.
        * invoke.texi: Include option summary in manpage.  Mark up option
        summary with @gccoptlist and @gol.  Use @r in one place where
        appropriate.
        * texinfo.tex: Update to version 2000-12-11.07 from ftp.gnu.org.
        * gcc.1: Generate from invoke.texi.

2001-01-13  Richard Henderson  <rth@redhat.com>

        * ggc-page.c (USING_MALLOC_PAGE_GROUPS): New; set if not using mmap.
        (struct page_entry): Add group member.
        (struct page_group): New.
        (struct globals): Add page_groups member.
        (alloc_anon): Only define for using mmap; remove valloc call.
        (page_group_index): New.
        (set_page_group_in_use): New.
        (clear_page_group_in_use): New.
        (alloc_page): Implement USING_MALLOC_PAGE_GROUPS.
        (free_page, release_pages): Likewise.
        * configure.in (with-gc): Default to ggc-page always.

2001-01-13  Alexandre Oliva  <aoliva@redhat.com>

        * reload1.c (replace_pseudos_in_call_usage): Use
        reg_equiv_constant and reg_equiv_address, and don't try
        regno_reg_rtx first.

2001-01-13  Richard Henderson  <rth@redhat.com>

        * ggc-page.c (alloc_page): Round up allocation size to one page.
        Set e->order on extra pages.

2001-01-13  Richard Henderson  <rth@redhat.com>

        * genrecog.c (nodes_identical): Expand commentary.
        (write_switch): Watch out for identical nodes.

2001-01-13  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cppfiles.c (_cpp_fake_include): New function.
        * cpphash.h (_cpp_fake_include): New.
        * cpplib.c (do_line): Call _cpp_fake_include when entering
        header files in preprocessed input.
        * cppmain.c (cb_pragma_implementation): Remove handling.
        (setup_callbacks): Don't register pragmas.

2001-01-13  Neil Booth  <neil@daikokuya.demon.co.uk>

        * extend.texi: Udate for CPP.

2001-01-13  Andreas Jaeger  <aj@suse.de>

        * reload1.c: Add prototype for replace_pseudos_in_call_usage.

        * regmove.c: Add prototype for replace_in_call_usage.

2001-01-13  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cpplib.h (cpp_pool, mi_state, mi_ind, struct cpp_macro,
        struct cpp_chunk, struct htab, struct toklist,
        struct cpp_context, CPP_STACK_MAX, struct lexer_state,
        struct spec_nodes, struct cpp_reader, CPP_OPTION, CPP_BUFFER,
        CPP_BUF_LINE, CPP_BUF_COL, CPP_BUF_COLUMN, U, ustrcmp, ustrncmp,
        ustrlen, uxstrdup, ustrchr, ufputs): Move to cpphash.h.
        (struct macro_args): Delete.
        * cpphash.h: See above.

2001-01-13  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cppmain.c (struct printer): Remove no_line_dirs.
        (options, cb): New.
        (main, setup_callbacks, scan_buffer, printer_init, cb_define)
        : Use options rather than CPP_OPTION.
        (setup_callbacks): Use cb rather than pfile->cb.
        (main): No need to check for a buffer.  Use cpp_errors.
        (printer_init): Don't set no_line_dirs.
        (maybe_print_line): Use options not no_line_dirs.
        (cb_file_change): Don't call print_line if -P.

2001-01-13  Neil Booth  <neil@daikokuya.demon.co.uk>

        * c-lex.c (init_c_lex): Use cpp_get_callbacks to set
        callbacks.
        * c-parse.in (finish_parse): Use cpp_errors.
        (__yylex): Use return value of cpp_pop_buffer.
        * cp/lex.c (finish_parse): Use cpp_errors.
        * cp/spew.c (read_token): Use return value of cpp_pop_buffer.

Sat Jan 13 16:57:40 2001  Denis Chertykov  <denisc@overta.ru>

        * README.AVR: URLs corrected.

Sat Jan 13 07:30:02 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * c-decl.c (start_function): Don't warn if old prototype is builtin
        that's not in C's namespace.
        * libgcc2.c (_varargs): Update definition of __builtin_saveregs.
        (_bb): Add prototype for ctime.
        * config/alpha/osf.h (TRANSFER_FROM_TRAMPOLINE): Add missing protos.

Sat Jan 13 09:53:32 MET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.c (ix86_fp_comparison_arithmetics_cost,
        ix86_fp_comparison_fcomi_cost, ix86_fp_comparison_sahf_cost,
        ix86_fp_comparison_cost): New functions.
        (ix86_expand_fp_compare): Use the costs to choose best bethod; add
        two new parameters SECOND_TEST and BYPASS_TEST; allow generating
        two-branch sequences; make static.
        (ix86_use_fcomi_compare): Do decision according to the costs.
        (split_fp_branch): New.
        * i386.md (compare-and-branch patterns): Use split_fp_branch.
        * i386-protos.h (ix86_expand_fp_compare): Remove
        (ix86_split_fp_branch): Declare.

        * i386.h (PREDICATE_CODES): Update codes from fcmov_comparison_operand
        and ix86_comparison_operator.

        * i386.c (ix86_prepare_fp_compare_args): Try to rearange the comparison
        to make it cheaper.

        * i386.c (put_condition_code): Output properly the unordered/ordered
        compares in fp case.
        (ix86_expand_fp_movcc): Use ix86_expand_compare infrastructure.

        * tm.texi (REVERSE_CONDITION): Document.
        * i386.c (ix86_fp_compare_mode): Simplify; return always CCFPmode
        in -ffast-math mode.
        * i386.h (REVERSE_CONDITION, REVERSIBLE_CC_MODE): New macro.

2001-01-13  Alexandre Oliva  <aoliva@redhat.com>

        * config/sh/sh.c (sh_expand_epilogue): Use PR explicitly.

        * config/sh/sh.c (sh_expand_prologue): Let the second toggle_sz be
        optimized away.

        * config/sh/sh.c (mova_p): Fix test for mova_const.

2001-01-13  Neil Booth  <neil@daikokuya.demon.co.uk>

        * fix-header.c (read_scan_file): Use cpp_get_callbacks and
        cpp_get_options rather than dereferencing pfile and using
        CPP_OPTION.
        * scan-decls.c (scan_decls): Use return value of
        cpp_pop_buffer rather than CPP_BUFFER.

2001-01-13  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cppinit.c (cpp_handle_option): help_only is now part of the
        cpp_options structure.
        * cpplib.c (cpp_errors, cpp_get_options, cpp_get_callbacks,
        cpp_set_callbacks): New functions.
        * cpplib.h (cpp_callbacks): Break out as a named structure.
        (cpp_options): Move help_only here from cpp_reader.
        (CPP_FATAL_ERRORS): Update to use cpp_errors.
        (cpp_errors, cpp_get_options, cpp_get_callbacks,
        cpp_set_callbacks): New prototypes.
        * cppmain.c (main): Update for help_only.

2001-01-13  Joseph S. Myers  <jsm28@cam.ac.uk>

        * Makefile.in (info, maintainer-clean, install-info, uninstall):
        Also build and remove and install and uninstall c-tree.info and
        cppinternals.info.
        ($(srcdir)/gcc.info): Add dependency on contrib.texi.
        ($(srcdir)/cppinternals.info): New target.
        * c-tree.texi: Change file name used when makeinfo used without -o
        from ir.info to c-tree.info.  Add info directory entry.
        * cppinternals.texi: Add info directory entry.
        * .cvsignore: Update.

2001-01-12  Jakub Jelinek  <jakub@redhat.com>

        * c-typeck.c (store_init_value): Don't require constant initializer
        elements with -pedantic -std=c99.
        (digest_init): Change error about non-constant initializer elements
        into pedwarn.
        (constructor_range_end): Remove.
        (constructor_incremental, designator_depth,
        designator_errorneous): New variables.
        (struct constructor_stack): Remove range_end, add incremental.
        (struct constructor_range_stack, constructor_range_stack): New.
        (struct initializer_stack): Add constructor_range_stack.
        (finish_init): Set it.
        (start_init): Likewise.  require_constant_elements for non-static
        trees only if not flag_isoc99.
        (really_start_incremental_init): Remove constructor_range_end, add
        constructor_incremental.
        (pop_init_level): Likewise.
        (push_init_level): Likewise.  If implicit and the subobject had some
        value set already, preinitialize the level with it.
        Warn about missing braces only if not pushing due to designators.
        (set_designator, push_range_stack): New functions.
        (set_init_label): Use them.
        (set_init_index): Likewise.  Remove constructor_range_end.
        Error if designator index is outside of array bounds.
        (add_pending_init): Compare values of purpose index trees, not the
        trees themselves.  Allow overwriting of already initialized element.
        Issue a warning if it had side-effects.
        (set_nonincremental_init, set_nonincremental_init_from_string): New
        functions.
        (pending_init_member): Rename to...
        (find_init_member): ...this function.  Call set_nonincremental_init
        if necessary.  Compare values of purpose index trees, not the trees
        themselves.  Return the actual value, not just non-zero if something
        is found.
        (output_init_element): Remove checks for duplicates.
        If field has zero size, only check the initializer for correctness.
        Call set_nonincremental_init if necessary.  Push RECORD/ARRAY into AVL
        if constructor_incremental is zero.  Change error about initializers
        not computable at load time into pedwarn.
        (output_pending_init_elements): Compare bit positions, not
        FIELD_DECLs to take into account zero-sized fields.
        (process_init_element): Use constructor_range_stack to fill all
        ranges in the designator lists from current level up.
        * extend.texi: Update documentation for labeled elements.

2001-01-12  Alexandre Oliva  <aoliva@redhat.com>

        * calls.c (emit_library_call_value_1): Add USEs and CLOBBERs
        to function usage for arguments passed by reference.  Optimize
        callee-copied arguments.
        * regmove.c (replace_in_call_usage): New function.
        (fixup_match_1): Call it.
        * cse.c (cse_insn): Canonicalize registers in function usage.
        * reload1.c (replace_pseudos_in_call_usage): New function.
        (reload): Call it.

        * Makefile.in: Reverted yesterday's wrong patch.  Installed the
        right version.

2001-01-12  Jakub Jelinek  <jakub@redhat.com>

        * config/alpha/alpha.c (alpha_expand_block_move): GET_MODE of tmp,
        not XEXP (tmp, 0).

2001-01-12  DJ Delorie  <dj@redhat.com>

        * Makefile.in (bootstrap): rename stages to be mnemonic.  Add
        restageN, unstageN, bubblestrap, quickstrap, and cleanstrap
        targets.

2001-01-12  Joseph S. Myers  <jsm28@cam.ac.uk>

        * cpp.texi, extend.texi, gcc.texi, install.texi, invoke.texi,
        tm.texi: Consistently refer to ISO C instead of ANSI C.  Refer to
        -std options alongside references to -ansi.  Update some
        documentation for C99.
        * cpp.1: Regenerate.

2001-01-12  Andreas Jaeger  <aj@suse.de>

        * haifa-sched.c (restore_line_notes): Remove argument block B
        since it's unused.
        * sched-ebb.c (schedule_ebb): Change caller.
        * sched-rgn.c (schedule_region): Likewise.
        * sched-int.h (restore_line_notes): Adjust prototype.

        * loop.h: Remove wrong declaration of doloop_condition_get.

2001-01-12  Phil Edwards  <pme@sources.redhat.com>

        * extend.texi:  Move C++-extension-related node from the C section
          into the C++ section.

2001-01-12  Joseph S. Myers  <jsm28@cam.ac.uk>

        * extend.texi: Refer to an array of pointers to functions instead
        of one of functions.

Fri Jan 12 12:08:12 MET 2001  Andreas Jaeger  <aj@suse.de>
                              Jan Hubicka  <jh@suse.cz>

        * combine.c (reversed_comparison): Fix typo in last patch.
        Check X for NULL.
        (combine_reversed_comparison_code): Make static to follow
        prototype declaration.

2001-01-12  Phil Edwards  <pme@sources.redhat.com>

        * install.texi:  Remove misplaced duplicate entry.

2001-01-11  Ulrich Drepper  <drepper@redhat.com>

        * config/float-i386.h: Define FLT_EVAL_METHOD and DECIMAL_DIG for C99.

Thu Jan 11 17:06:30 EST 2001  John Wehle  (john@feith.com)

        * final.c: (leaf_function_p): Fix typo.

2001-01-11  Zack Weinberg  <zack@wolery.stanford.edu>

        * aclocal.m4 (AC_FUNC_MMAP_ANYWHERE): Completely rewritten.
        Now defines HAVE_MMAP_DEV_ZERO and/or HAVE_MMAP_ANON depending
        which you have.
        (AC_FUNC_MMAP_FILE): Don't AC_REQUIRE AC_FUNC_MMAP_ANYWHERE.
        * configure.in: Set GGC to ggc-page if any of mmap_dev_zero,
        mmap_anon, and valloc is available.
        * ggc-page.c: Restructure ifdef logic to match new autoconf
        spec.  Don't throw away the test page in init_ggc.

        * configure, config.in: Regenerate.

2001-01-12  Michael Hayes  <mhayes@redhat.com>

        * loop.h (total_biv_increment): Constify iv_class pointer.
        (struct induction): Replace `mem_mode' with `mem' rtx.
        * unroll.c (total_biv_increment): Constify iv_class pointer.
        * loop.c (loop_giv_reduce_benefit): Derive mem mode from mem rtx.
        (find_mem_givs, combine_givs_p): Likewise.
        (debug_ivs, debug_iv_class, loop_ivs_dump, loop_iv_class_dump): New.

2001-01-10  Thomas Pfaff <tpfaff@gmx.net>

        * gthr-win32.h (__gthread_objc_thread_get_data): Save and restore Win32
        LastError.
        (__gthread_getspecific): Ditto.

Fri Jan 12 00:04:00 MET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.c (ix86_comparison_operator, fcmov_comparison_operator,
        put_condition_code): Convert fp comparison codes to integer
        before handling.
        (ix86_expand_fp_compare): Postnote the fp comparison code converison
        to final.

        * i386.c (unsigned_comparison, no_comparison_operator): Kill.
        * i386-protos.h (no_comparison_operator): Kill.

        * i386.c (ix86_expand_fp_compare): Fix ordered/unordered confussion.

        * combine.c (REVERSIBLE_CC_MODE): Remove.
        (reversible_comparison_p): Remove.
        (combine_reversed_comparison_code): New.
        (reversed_comparison): New.
        (combine_simplify_rtx): Use
        combine_reversed_comparison_code/reversed_comparison instead
        of reversible_comparison_p.
        (simplify_if_then_else): Likewise.
        (simplify_set): Likewise.
        (simplify_logical): Likewise.
        (if_then_else_cond): Likewise.
        (known_cond): Likewise.
        (simplify_comparison): Likewise.

2001-01-11  Alan Lehotsky  <lehotsky@tiac.net>

        * builtins.c (std_expand_builtin_va_start): Handle varargs when
        sizeof (int) is larger than sizeof(__word__).

2001-01-11  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cppinit.c (do_includes): Fix typo.

2001-01-11  Stephane Carrez  <Stephane.Carrez@worldnet.fr>

        * config/m68hc11/m68hc11.md (cmphi_1): Make sure reloading
        in S_REGS does not occur because not all sources are possible
        when a S_REGS is a destination (sometimes needs a clobber).
        (movqi_const0, zero_extendhisi2, zero_extendqisi2): Likewise.
        (zero_extendhidi2, extendqisi2, extendqihi2, extendhisi2): Likewise.
        (anddi3, iordi3, xordi3, negqi2, one_cmplhi2, one_cmplqi2: Likewise.
        (ashldi3_const32, ashldi3_const1, ashlsi3_const16): Likewise.
        (ashlsi3_const1, ashlhi3_2, ashlqi3_const1, ashrhi3): Likewise.
        (ashrqi3_const1, lshrdi3_const32, lshrdi3_const63): Likewise.
        (lshrdi_const1, lshrsi3_const16): Likewise.
        (*addhi3, lshrsi3_const1, lshrqi3_const1): Likewise.
        (*movhi_68hc12, *movqi_68hc12): Likewise.
        (movstrictqi): Make sure reloading in D_REGS as a destination
        does not happen.

2001-01-11  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cppspec.c (DEFAULT_WORD_SWITCH_TAKES_ARG): Add -MQ.

2001-01-11  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cppinit.c (cpp_start_read): If -fpreprocessed, ignore
        -D, -U and -A, and don't initialize the builtins.
        (do_includes): Error if -include or -imacros with -fpreprocessed.
        * cppmain.c (cb_define, cb_undef): Unconditionally process
        the callback.
        * tradcpp.c (main): Fix typo.

2000-01-11  Mark Elbrecht  <snowball3@bigfoot.com>

         * cppfiles.c (cpp_included, find_include_file, _cpp_execute_include)
           (read_name_map): Use IS_ABSOLUTE_PATH.
         * tradcpp.c (get_filename): Likewise.

2001-01-11  Stephane Carrez  <Stephane.Carrez@worldnet.fr>

        * config/m68hc11/m68hc11.md (*adcq, *subcq): Fix operand numbers.
        (*ashlsi3_const16_zexthi, *ashlsi3_const1): Likewise.
        (*lshrsi3_const, *lshrsi3_const1, *lshrsi3_const16): Likewise.
        (*ashrsi3, *ashrsi3_const, *ashlsi3, *ashlsi3_const): Likewise.
        (*ashlsi3_const1, *lshrsi3, *ashlsi3_const16): Likewise.
        (cmphi_z_used): Don't use '@' for the output.
        (tstqi_z_used): Likewise.
        (cmpqi_z_used): Likewise.
        (one_cmplsi2): Likewise.

2001-01-11  Alexandre Oliva  <aoliva@redhat.com>

        * config/sh/sh.c (barrier_align): Recognize branch around far
        branch and redundant insn.

2001-01-11  Neil Booth  <neil@daikokuya.demon.co.uk>

        * invoke.texi: Restore documentation of the drivers' switches -MD
        and -MMD.

2001-01-11  Alexandre Oliva  <aoliva@redhat.com>

        * config/sh/sh.h (LABEL_ALIGN): Use UNSPECV_ALIGN instead of 1.

        * Makefile.in (check-gcc//%, check-g++//%, check-g77//%,
        check-objc//%): Support parallel testing of multilibs.
        (TESTSUITEDIR): Set to testsuite by default, but override for
        parallel testing.
        (check-gcc, check-g++, check-g77, check-objc): Enter
        $(TESTSUITEDIR).

2001-01-11  Bernd Schmidt  <bernds@redhat.com>

        * alias.c (throughout): Use REGNO, rather than ORIGINAL_REGNO.
        * sched-deps.c (deps_may_trap_p): Likewise.
        * basic-block.h: Remove a comment.
        * flow.c (PROP_POSTRELOAD): Remove.
        (update_life_info): Don't add it to prop_flags.
        (mark_set_1): Lose the code that was enabled by it.

2001-01-11  Michael Hayes  <mhayes@redhat.com>

        * flow.c (flow_call_edges_add): New.
        * basic_block.h (flow_call_edges_add): New.

2001-01-11  J"orn Rennecke <amylaar@redhat.com>

        * reload1.c (move2add_note_store): Update reg_set_luid even if
        base reg remains the same.

2001-01-10  Nick Clifton  <nickc@redhat.com>

        * config/d30v/d30v.c (d30v_init_machine_status): Initialise
        machine_function structure to zero.
        Add prototypes for machine_status functions.

2001-01-10  Mark Mitchell  <mark@codesourcery.com>

        * c-common.h (CTI_VOID_LIST): Remove.
        (void_list_node): Likewise.
        * tree.h (TI_VOID_LIST_NODE): New enumeral.
        (void_list_node): New macro.
        * config/arm/arm.c (arm_init_builtins): Use void_list_node.
        * config/i386/i386.c (ix86_init_builtins): Likewise.
        * config/ia64a/ia64.c (ia64_init_builtins): Likewise.

2001-01-10  Neil Booth  <neil@daikokuya.demon.co.uk>

        * Makefile.in (tradcpp0): Depend on mkdeps.h.  Link mkdeps.o
        * cppinit.c (cpp_start_read): Update comment, remove unneeded
        if statement.
        * tradcpp.c: Include mkdeps.h.
        (deps, print_deps_phony_targets, deps_append, output_deps,
        init_dependency_output, output_deps): New.
        (deps_buffer, deps_allocated_size, deps_size, deps_column,
        deps_output): Delete.
        (print_deps_missing_files): Rename deps_missing_files.
        (inhibit_output): Make global.
        (main): Delete inhibit_output, deps_stream, deps_target.
        Use mkdeps functionality in the same way as cpplib.  Remove
        -g3 handling.  Handle -MF, -MP, -MQ, -MT.  Update handling of
        -M and -MM.  Remove old handling of deps via deps_out, and
        old reading of environment variables.
        (get_filename): Update to use deps_add_dep.

2001-01-10  Mark Mitchell  <mark@codesourcery.com>

        * output.h (make_function_rtl): Remove prototype.
        (make_decl_rtl): Likewise.
        * varasm.c (make_function_rtl): Remove.
        (make_decl_rtl): Determine top-levelness from DECL_CONTEXT, rather
        than from a third parameter.
        * tree.h (make_decl_rtl): Remove last parameter.
        * c-decl.c (builtin_function): Remove last argument in call to
        make_decl_rtl; use make_function_rtl instead of make_decl_rtl.
        (start_function): Likewise.
        * except.c (call_get_eh_context): Likewise.
        * expr.c (emit_block_move): Likewise.
        (clear_storage): Likewise.
        * profile.c (output_func_start_profiler): Likewise.
        * toplev.c (rest_of_decl_compilation): Likewise.
        * objc/objc-act.c (create_builtin_decl): Likewise.
        (synth_module_prologue): Likewise.
        (generate_static_reference): Likewise.
        (build_selector_reference_decl): Likewise.
        (build_class_reference_decl): Likewise.
        (build_objc_string_decl): Likewise.
        (build_protocol_reference): Likewise.

2001-01-10  Richard Henderson  <rth@redhat.com>

        * hwint.h: Revert yesterday's change.

2001-01-10  Nick Clifton  <nickc@redhat.com>

        * function.h (save_machine_status): Delete.
        (restore_machine_status): Delete.
        Amend comment describing {init|mark|free}_machine_status.

        * function.c (save_machine_status): Delete.
        (restore_machine_status): Delete.
        Amend comment describing {init|mark|free}_machine_status.
        (push_function_context_to): Remove invocation of
        save_machine_status.
        (pop_function_context_from): Remove invocation of
        restore_machine_status.

        * emit-rtl.c (init_emit_once): Amend comment describing
        {init|mark|free}_machine_status.

        * tm.texi (Per-Function Data): New node.  Describe the
        INIT_EXPANDERS macro and the {init|mark|free}_machine_status
        function pointers.

2001-01-10  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cppinit.c (OPT_g): Remove.
        (cpp_handle_option): Update for removed -g3.
        (print_help): Update.
        * cpplib.h (struct cpp_options): Remove debug_output.
        * cppmain.c (setup_callbacks, cb_define): Update.
        * gcc.c (cpp_options): Translate -g3 to -dD.

2001-01-10  Aldy Hernandez  <aldyh@redhat.com>

        * config/i960/i960.md: Change modifier to + on the zero_extract
        pattern after the (rotate -2 reg) canonicalization pattern.

2001-01-10  Richard Henderson  <rth@redhat.com>

        * config/alpha/alpha.c (alpha_free_machine_status): New.
        (override_options): Install it.
        (alpha_mark_machine_status): Verify machine non-null.
        * config/i386/i386.c (ix86_free_machine_status): New.
        (override_options): Install it.
        (ix86_init_machine_status): Use xcalloc.
        (ix86_mark_machine_status): Verify machine non-null.
        * config/ia64/ia64.c (ia64_free_machine_status): New.
        (ia64_override_options): Install it.
        (ia64_mark_machine_status): Verify machine non-null.

Wed Jan 10 11:34:39 2001  Jeffrey A Law  (law@cygnus.com)

        * function.c (instantiate_virtual_regs): Instantiate virtual
        registers found in CALL_INSN_FUNCTION_USAGE.

2001-01-10  Joseph S. Myers  <jsm28@cam.ac.uk>

        * i386.h (CPP_CPU_SPEC): Allow for -std=c* and -std=i* as
        equivalent to -ansi in disabling -Di386.

Wed Jan 10 16:38:31 MET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.c (ix86_fp_compare_code_to_integer, ix86_fp_comparison_codes):
        new functions.
        (ix86_expand_fp_compare): Make trivial use of new infrastructure.

2001-01-10  Richard Earnshaw  <rearnsha@arm.com>

        * arm.c (arm_init_builtins): Temporarily disable xscale builtins.

2001-01-10  Joseph S. Myers  <jsm28@cam.ac.uk>

        * invoke.texi: Document that -fcond-mismatch isn't supported for
        C++.

2001-01-10  Joseph S. Myers  <jsm28@cam.ac.uk>

        * gcc.texi: Define macro gcctabopt.
        * invoke.texi: Add manpage sections BUGS and AUTHOR.  Use
        @command, @env and @option in some places where appropriate.  Use
        @gcctabopt where appropriate.  Put URLs and email addresses inside
        @w.

2001-01-10  Nathan Sidwell  <nathan@codesourcery.com>

        * gcc.c (cpp_options): Set MD file name from output
        filename, if specified.
        (suffix_subst): New static variable.
        (do_spec): Clear it.
        (do_spec_1, case '.'): Handle new `%.suffix' spec.
        Clear it.
        (give_switch): Handle suffix_subst.

2001-01-10  Phil Edwards  <pme@sources.redhat.com>

        * invoke.texi:  Fix another typo.

2001-01-10  Phil Edwards  <pme@sources.redhat.com>

        * invoke.texi:  Fix typo.

2001-01-10  Neil Booth  <neil@daikokuya.demon.co.uk>

        * c-lang.c (lang_hooks): Update.
        (lang_decode_option): Remove.
        (lang_init_options): Rename c_init_options.
        * toplev.c (main): Use lang_hooks for lang_init_options
        and lang_decode_option.
        * toplev.h (lang_hooks): Add 2 new hooks.
        * tree.h: Remove lang_init_options and lang_decode_option.
        * cp/cp-tree.h (lang_decode_option): Rename cxx_decode_option.
        * cp/decl2.c: Similarly.
        * cp/lex.c (lang_init_options): Rename cxx_init_options.
        (lang_hooks): Update.
        * f/com.c (f_init, f_finish): Rename ffe_init, ffe_finish
        for consistency.
        (lang_init_options): Rename ffe_init_options.
        (lang_hooks): Update.
        (lang_decode_option): Remove.
        * java/lang.c (lang_init_options): Rename java_init_options.
        (lang_decode_option): Rename java_decode_option.
        (lang_hooks): Update.
        * objc/objc-act.c (lang_init_options): Rename objc_init_options.
        (lang_decode_option): Rename objc_decode_option.
        (lang_hooks): Update.

2001-01-09  Nick Clifton  <nickc@redhat.com>

        * config/d30v/d30v.c (d30v_eh_epilogue_sp_ofs): Delete.
        (d30v_return_addr_rtx): Delete.
        (d30v_expand_epilogue): Use eh_epilogue_sp_ofs field in the
        cfun->machine structure.
        (struct machine_function): Move to d30v.h
        (d30v_save_machine_status): Delete.
        (d30v_restore_machine_status): Delete.
        (d30v_init_machine_status): New Function.
        (d30v_mark_machine_status): New Function.
        (d30v_free_machine_status): New Function.
        (d30v_init_expanders): Use new functions.
        (d30v_return_addr): Use ra_rtx field in cfun->machine.
        (d30v_add_gc_roots): Remove d30v_eh_epilogue_sp_ofs and
        d30v_return_addr_rtx.

        * config/d30v/d30v.h (struct_machine): Move here.
        Add eh_epilogue_sp_ofs field.

        *config/d30v/d30v.md (epilogue): Initialise eh_epilogue_sp_ofs
        field in cfun->machine structure.

Tue Jan  9 21:34:57 2001  John David Anglin  <dave@hiauly1.hia.nrc.ca>

        * pa32-regs.h (CONDITIONAL_REGISTER_USAGE): When generating pic code,
        PIC_OFFSET_TABLE_REGNUM_SAVED is a call_used register.
        * pa64-regs.h (CONDITIONAL_REGISTER_USAGE): Likewise.

Tue Jan  9 21:25:19 2001  Jeffrey A Law  (law@cygnus.com)

        * objc/lang-options.h: Remove bogus reference to
        Java trademark.

2001-01-09  Kazu Hirata  <kazu@hxi.com>

        * config/h8300/h8300.c (get_shift_alg): Use a struct shift_info to
        return the result.

2001-01-09  Alan Lehotsky  <lehotsky@tiac.net>

        * reload.c (find_reloads_address): Check for eliminable registers
                  when substituting a constant expression for a pseudo.

2001-01-09  Joseph S. Myers  <jsm28@cam.ac.uk>

        * c-common.c (enum format_type): Add format_type_error.
        (decode_format_type): New function.
        (decl_attributes): Use it.
        (format_kind_info): Adjust comment.

2001-01-09  David O'Brien  <obrien@BSDi.com>

        * config.gcc (*-*-gnu*, i[34567]86-*-elf*, i[34567]86-*-linux*libc1,
        i[34567]86-*-linux*, i[34567]86-*-moss*): Specify needed platform specific
        files in tm_file.
        * config/i386/gnu.h: Don't include required platform specific .h files,
        tm.h will do it instead.
        * config/i386/i386elf.h: Likewise.
        * config/i386/linux.h: Likewise.
        * config/i386/moss.h: Likewise.
        * config/mips/gnu.h: Likewise.

2001-01-09  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

        * config.gcc (powerpc-*-beos*): Include ${tm_file} and rs6000/aix.h.
        (rs6000-ibm-aix3.[01]*): Likewise.
        (rs6000-ibm-aix3.2.[456789]*, powerpc-ibm-aix3.2.[456789]*): Likewise.
        (rs6000-ibm-aix4.[12]*, powerpc-ibm-aix4.[12]*): Likewise.
        (rs6000-ibm-aix4.[3456789]*, powerpc-ibm-aix4.[3456789]*): Likewise.
        (rs6000-ibm-aix[56789].*, powerpc-ibm-aix[56789].*): Likewise.
        (powerpc-*-sysv*): Include {tm_file}. svr4.h and rs6000/sysv4.h.
        (powerpc-*-eabiaix*): Likewise.
        (powerpc-*-eabisim*): Likewise.
        (powerpc-*-elf*): Likewise.
        (powerpc-*-eabi*): Likewise.
        (powerpc-*-rtems*): Likewise.
        (powerpc-*-linux*libc1): Likewise.
        (powerpc-*-linux*): Likewise.
        (powerpc-wrs-vxworks*): Likewise.
        (powerpcle-wrs-vxworks*): Likewise.
        (powerpcle-*-sysv*): Likewise.
        (powerpcle-*-elf*): Likewise.
        (powerpcle-*-eabisim*): Likewise.
        (powerpcle-*-eabi*): Likewise.
        (powerpcle-*-solaris2*): Likewise.
        * config/rs6000/aix31.h: Delete includes.
        * config/rs6000/aix3newas.h: Likewise.
        * config/rs6000/aix41.h: Likewise.
        * config/rs6000/aix43.h: Likewise.
        * config/rs6000/beos.h: Likewise.
        * config/rs6000/rtems.h: Likewise.
        * config/rs6000/sysv4.h: Likewise.

2001-01-09  Kazu Hirata  <kazu@hxi.com>

        * config/h8300/h8300.c (get_shift_alg): Remove an argument cpu.
        Change an argument mode of machine_mode to shift_mode of
        shift_mode.  Remove an extra error check.
        (emit_a_shift): Adopt to the new calling prototype of
        get_shift_alg.
        (function_prologue): Fix code for a monitor
        function.  Support H8/S.
        (function_epilogue): Do not output pop for a monitor function.

2001-01-09  Nick Clifton  <nickc@redhat.com>

        * config/rs6000/rs6000.c (rs6000_sysv_varargs_p): Delete.
        (setup_incoming_varargs): Use sysv_varargs_p field of the
        cfun->machine structure.
        (struct machine_function): Move to rs6000.h
        (rs6000_save_machine_status): Delete.
        (rs6000_restore_machine_status): Delete.
        (rs6000_init_machine_status): New Function.
        (rs6000_free_machine_status): New Function.
        (rs6000_init_expanders): Use new functions.

        * config/rs6000/rs6000.h (rs6000_sysv_varargs_p): Delete
        export.
        (struct machine_function): Move here.

        * config/rs6000/sysv4.h (RS6000_VARARGS_AREA): Use
        sysv_varargs_p field of the cfun->machine structure.

        * config/rs6000/rs6000-protos.h (rs6000_save_machine_status):
        Remove prototype.
        (rs6000_restore_machine_status): Remove prototype.

2001-01-09  Richard Henderson  <rth@redhat.com>

        * sched-int.h (struct deps): Add max_reg, reg_last_in_use; merge
        reg_last_uses, reg_last_sets, reg_last_clobbers into struct deps_reg.
        * sched-deps.c (sched_analyze_1): Update uses of struct deps.
        (sched_analyze_2, sched_analyze_insn): Likewise.
        (sched_analyze, init_deps): Likewise.
        (free_deps): Likewise.  Iterate with EXECUTE_IF_SET_IN_REG_SET.
        * sched-rgn.c (propagate_deps): Likewise.  Remove max_reg argument.
        (compute_block_backward_dependences): Update propagate_deps call.

2001-01-09  Mark Elbrecht  <snowball3@bigfoot.com>

        * gcc.c (process_command): Set switches[n_switches].ordering to 0.

2001-01-09  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cppinit.c (OPT_MD, OPT_MMD): Restore.
        (cpp_handle_option): Handle them.
        (cpp_post_options): Ensure one of -M or -MM is specified with
        any other -M? option.
        (init_dependency_output): Suppress output with -MG.

2001-01-09  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cpp.texi: Update.
        * invoke.texi: Update.

2001-01-09  Bernd Schmidt  <bernds@redhat.com>

        * sh.md (reload_outsf): Generate recognizable patterns for
        TARGET_SH3E.

2001-01-09  Neil Booth  <neil@daikokuya.demon.co.uk>

        * c-lang.c (lang_hooks): Update.
        (lang_init): Rename c_init.
        (lang_finish): Remove.
        * toplev.c (compile_file): Use lang_hooks for lang_init ()
        and lang_finish ().
        * toplev.h (lang_hooks): Add init () and finish ().
        * tree.h (lang_init, lang_finish): Remove.
        * cp/tree.h (lang_init, lang_finish): Remove.
        * cp/decl2.c (cxx_post_options, lang_hooks): Move to cp/lex.c.
        * cp/lex.c (cxx_init, cxx_finish, cxx_post_options,
        lang_hooks): New.
        (lang_init, lang_finish): Remove.
        * f/com.c (lang_init, lang_finish): Rename f_init, f_finish.
        (lang_hooks): Update.
        * java/lang.c (lang_init): Rename java_init.
        (lang_finish): Remove.
        (lang_hooks): Update.
        * objc/objc-act.c (lang_init): Rename objc_init.
        (lang_finish): Remove.
        (lang_hoooks): Update.

20001-01-09  Graham Stott  <grahams@redhat.com>

        * cppfiles.c (_cpp_execute_include): Move `len` initialisation
        after `ptr` is initialised.

2001-01-09  Alexandre Oliva  <aoliva@redhat.com>

        * config/sh/sh.h (STATIC_CHAIN_REGNUM): Change from r13 to r3.
        (INITIALIZE_TRAMPOLINE): Adjust accordingly.
        * config/sh/sh.c (sh_expand_prologue): Use r1 as temporary for
        stack adjusts, instead of r3.

2001-01-09  Michael Hayes  <mhayes@redhat.com>

        * flow.c (flow_loop_scan): Break out of ...
        (flow_loops_find) ... here.
        * basic-block.h (flow_loop_scan): New.
        (LOOP_ENTRY_EDGES, LOOP_EXIT_EDGES): Add.
        (LOOP_EDGES, LOOP_EXITS_DOMS, LOOP_ALL): Redefine.

2001-01-09  Alexandre Oliva  <aoliva@redhat.com>

        * cppinit.c (cpp_cleanup): NULLify macro_buffer and zero
        macro_buffer_len.
        * cppmacro.c (cpp_macro_definition): Reset macro_buffer_len when
        realloc()ing macro_buffer.

        * hwint.h (HOST_BITS_PER_WIDE_INT, HOST_WIDE_INT): Use long long
        if it's wider than long and the target's long is wider than the
        host's.

2001-01-09  Mark Mitchell  <mark@codesourcery.com>

        Remove support for using UWIN as a host machine.
        * configure.in: Issue an error message.
        * configure: Regenerated.
        * config.gcc: Remove xm_* UWIN configury.
        * config/i386/xm-uwin.h: Remove.

2001-01-08  Nick Clifton  <nickc@redhat.com>

        * config/v850/v850.c (ra_rtx): Delete.
        (v850_save_machine_status): Delete.
        (v850_restore_machine_status): Delete.
        (v850_init_machine_status): New function.
        (v850_mark_machine_status): New function.
        (v850_free_machine_status): New function.
        (v850_return_addr): Use ra_rtx field in machine structure.
        (v850_init_expanders): Use new functions.

        * config/v850/v850-protos.h: Fix prototypes for v850_output_*
        * config/v850/v850.c: Change arguments to v850_output+* functions
        to take a const char *, to avoid compile time warning.
        * config/v850/v850.h (ASM_OUTPUT_LABELREF): Undefine, not needed.
        (USER_LABEL_PREFIX): Redefine.

2000-01-08  Jim Wilson  <wilson@redhat.com>

        * sched-rgn.c (BITSET_ADD, BITSET_REMOVE, bitset_member): Cast
        1 to unsigned HOST_WIDE_INT before left shift.

2001-01-08  Nick Clifton  <nickc@redhat.com>

        * config/arm/arm.c (arm_mark_machine_status): Check to see if
        the machine structure has been allocated.
        (arm_free_machine_status): New function: Free the machine
        specific function structure.

2001-01-08  Richard Henderson  <rth@redhat.com>

        * jump.c (simplejump_p): Revert last change.

2001-01-08  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cppinit.c (init): Rename init_library.
        (cpp_create_reader): Update.
        * gcc.c (cpp_options): If -o given, use it as the target of
        any -M options.

2001-01-08  Richard Earnshaw  <rearnsha@arm.com>

        * arm.c (arm_arch5e): New variable.
        (all_cores): XScale is a 5TE device.
        (arm_override_options): Set arm_arch5e.
        (arm_init_builtins): __builtin_prefetch is in arch5e.
        * arm.h (arm_arch5e): Declare it.

        * arm.h (PREDICATE_CODES): Add arm_hard_register_operand.

        * arm.md (define_constants): Add defines for UNSPEC and
        UNSPEC_VOLATILE insns.  Update all users.
        (define_constants): Add constants for IP_REGNUM, SP_REGNUM, PC_REGNUM.
        * arm.c (multi_register_push, note_invalid_constants)
        (emit_multi_reg_push, emit_sfm, expand_prologue): Use constants.
        * arm.h (SP_REGNUM, IP_REGNUM, PC_REGNUM): Delete defines.
        (STACK_POINTER_REGNUM): Define in terms of SP_REGNUM.

Mon Jan  8 16:14:56 MET 2001  Jan Hubicka  <jh@suse.cz>

        * jump.c (jump_optimize_1): Use reversed_comparison_code
        instead of can_reverse_comparison_p.
        (jump_back_p): Likewise.
        (invert_exp_1): Likewise.
        (thread_jumps): Likewise.
        * simplify-rtx.c (simplify_unary_operation): Likewise.
        (simplify_ternary_operation): Likewise.
        * cse.c (find_comparison_args): Convert to use
        can_reverse_comparison_p.
        (record_jump_equiv): Likewise.

2001-01-08  Richard Earnshaw  <rearnsha@arm.com>

        * arm.h (HARD_REGNO_RENAME_OK): Delete.
        (EPILOGUE_USES): Define.
        (INITIAL_ELIMINATION_OFFSET): Current prologue code does not
        automatically stack the LR if it isn't live.

Mon Jan  8 13:46:02 MET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.c (ix86_expand_int_movcc): Take care to reverse fp conditions
        properly.

Sun Jan  7 18:37:43 2001  Mark P Mitchell  <mark@codesourcery.com>

        * ggc-page.c (max_alignment): New structure.
        (MAX_ALIGNMENT): New macro.
        (init_ggc): Use it to round up the sizes in the
        extra_order_size_table.

2001-01-07  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

        * config/rs6000/rs6000.h (EPILOGUE_USES): New, mark link register
        after reload.

2001-01-07  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.def (BUILT_IN_FPRINTF): New entry.

        * c-common.c (c_expand_builtin_fprintf): New function.
        (init_function_format_info): Handle __builtin_fprintf.
        (c_common_nodes_and_builtins): Declare fprintf/__builtin_fprintf.
        (c_expand_builtin): Handle BUILT_IN_FPRINTF.

        * c-decl.c (duplicate_decls): Adjust comment.

        * extend.texi (fprintf): Document new builtin.

2001-01-07  Richard Henderson  <rth@redhat.com>

        * jump.c (simplejump_p): Recognize any single_set jump
        of the proper form.

2001-01-07  Richard Henderson  <rth@redhat.com>

        * configure.in (slibdir): Accept an --with-slibdir option.
        Use "test" not "[" in configure.  Default to $(libdir).

        * config/t-linux (SHLIB_INSTALL): Double quote slibdir;
        fix typo in rm -f.
        * config/t-aix43 (SHLIB_INSTALL): Likewise.
        * config/alpha/t-osf4 (SHLIB_INSTALL): Likewise.
        (SHLIB_LINK): Create links for the soname.
        * config/mips/t-iris6: Likewise.
        * config/sparc/t-slibgcc: Likewise.
        * config/sparc/t-slibgcc-sld: Likewise.

2001-01-07  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/i386.c (constant_call_address_operand): Accept
        (const (plus (symbol_ref) (const_int))).
        * config/i386/i386.h (PREDICATE_CODES): Add CONST for
        constant_call_address_operand.

2001-01-08  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * libgcc2.h (W_TYPE_SIZE): Fix case where MIN_UNITS_PER_WORD == 1
        and LONG_LONG_TYPE_SIZE > 32.

2001-01-07  Gerald Pfeifer  <pfeifer@dbai.tuwien.ac.at>

        * jump.c (reversed_comparison_code_parts): Fix typo introduced by
        the previous change.

Sun Jan  7 19:37:48 MET 2001  Jan Hubicka  <jh@suse.cz>

        * jump.c (reversed_comparison_code_parts, reversed_comparison_code):
        New.
        (can_reverse_comparison_p): Rewrite to use reversed_comparison_code.
        (reverse_condition_maybe_unordered): Abort on unsigned comparisons.
        * rtl.h (reversed_comparison_code_parts, reversed_comparison_code):
        Declare.

2001-01-07  Neil Booth  <neil@daikokuya.demon.co.uk>

        * fix-header.c (read_scan_file): s/pfile/scan_in/.

2001-01-07  Neil Booth  <neil@daikokuya.demon.co.uk>

        * c-lang.c (c_post_options): Call cpp_post_options.
        * objc/objc-act.c (objc_post_options): Similarly.
        * cppmain.c (main): Similarly.
        * fix-header.c (read_scan_file): Similarly.
        * cppinit.c (cpp_start_read): Move option consistency checks
        to cpp_post_options.  Don't call init_dependency_output.
        If needed, add default target and main file dependency.
        (OPT_MD, OPT_MMD): Remove.
        (OPT_MF): New.
        (cpp_handle_option): Update for OPT_* changes.
        (cpp_post_options): New.
        (init_dependency_output): Command line -MF overrides environment
        variables.  Don't set default target etc.  Suppress output
        if dependencies are going to stdout.
        (print_help): Update.
        * cpplib.h (cpp_post_options): New.
        * gcc.c (cpp_options): Update for -MD, -MMD, -MF.

Sun Jan  7 14:44:19 MET 2001  Jan Hubicka  <jh@suse.cz>

        * jump.c (comparison_dominates_p): Support unordered compares.

Sun Jan  7 14:39:07 MET 2001  Jan Hubicka  <jh@suse.cz>

        * simplify-rtx.c (simplify_relational_operation): Always simplify
        ORDERED and UNORDERED when FLAG_FAST_MATH.  Handle properly UNLE
        and UNGE.

Sun Jan  7 14:35:13 MET 2001  Jan Hubicka  <jh@suse.cz>

        * combine.c (combine_simplify_rtx): Recognize the unordered compares.
        (nonzero_bits): Likewise.
        (simplify_comparison): Likewise.
        (num_sign_bit_copies): Likewise; return more sane value depending
        on STORE_FLAG_VALUE.
        (known_cond): Do not assume EQ to be always true for equivalent
        operands.

Sun Jan  7 14:31:57 MET 2001  Jan Hubicka  <jh@suse.cz>

        * cse.c (fold_rtx): Handle unordered comparisons.

Sun Jan  7 13:49:19 MET 2001  Jan Hubicka  <jh@suse.cz>

        * rtlanal.c (set_of_1): New static function.
        (reg_set_last_1, reg_set_p_1, reg_set_reg, reg_set_flag,
         reg_set_last_unknown, reg_set_last_value, reg_set_last_first_regno,
         reg_set_last_last_regno): Remove.
        (set_of): New global function.
        (set_of_data): New structure.
        (reg_set_p, reg_set_last): Revamp for set_of.
        * rtl.h (set_of): New.

2001-01-07  Joseph S. Myers  <jsm28@cam.ac.uk>

        * c-common.c (c_common_nodes_and_builtins): Add _Exit builtin.
        * extend.texi: Document _Exit builtin.

2001-01-07  Neil Booth  <neil@daikokuya.demon.co.uk>

        * (initialize, initialize_builtins,
        initialize_dependency_output, initialize_standard_includes):
        Rename s/initialize/init. Update.
        (init_dependency_output): Move to after
        cpp_handle_options, the correct location temporally at least.
        (opt_comp): Move next to init (), its caller.  Fix prototype.
        (init): Make "initialized" local scope.
        (cpp_create_reader): Always call init ().
        (cpp_start_read): Update.
        (output_deps): New function, broken out of cpp_finish.
        (cpp_finish): Break out output_deps.

2001-01-07  Richard Henderson  <rth@redhat.com>

        * collect2.c (COFF specific stuff): Revert 12-06 patch
        to prototype system functions.

2001-01-07  Michael Hayes  <mhayes@redhat.com>

        * hard-reg-set.h: Add multiple include guard.
        * basic-block.h (struct loop): Add `sink' field.
        * loop.h: Include sbitmap.h, hard-reg-set.h, and basic-block.h.
        (emit_iv_add_mult): Delete.
        (loop_iv_add_mult_hoist, loop_iv_add_mult_sink): Define.
        (loop_iv_add_mult_emit_before, loop_insn_sink): Define.
        (unroll_loop): Remove end_insert_before argument.
        * loop.c (loop_givs_rescan): Remove end_insert_before argument.
        (maybe_eliminate_biv_1): Likewise.
        (emit_iv_add_mult): Delete.
        (gen_add_mult, loop_regs_update): New.
        (loop_insn_emit_after, loop_insn_emit_before): New.
        (loop_insn_sink, loop_insn_sink_or_swim): New.
        (emit_iv_add_mult): Delete.
        (scan_loop): Set loop->sink.
        (loop_givs_reduce): Use loop_insn_sink and its ilk.
        (loop_givs_rescan, strength_reduce, check_dbra_loop): Likewise.
        (maybe_eliminate_biv_1): Likewise.
        (maybe_eliminate_biv_1): Add basic block argument.
        * unroll.c (unroll_loop): Remove end_insert_before argument.
        (find_splittable_regs): Likewise.
        (find_splittable_regs): Use loop_insn_sink and its ilk.
        (find_splittable_givs, final_biv_value, final_giv_value): Likewise.

2001-01-07  Michael Hayes  <mhayes@redhat.com>

        * loop.h (loop_insn_hoist): New prototype.
        * loop.c (loop_insn_hoist, loop_insn_emit_before): New.
        (move_movables, loop_givs_rescan): Use loop_insn_hoist.
        (check_dbra_loop, load_mems): Likewise.
        * unroll.c (unroll_loop, find_splittable_regs): Likewise.
        (find_splittable_givs): Likewise.

2001-01-07  Michael Hayes  <mhayes@redhat.com>

        * loop.c (emit_iv_add_mult): Use single_set to examine new insn.

2001-01-07  Richard Henderson  <rth@redhat.com>

        * sched-rgn.c (is_cfg_nonregular): Fix thinko's last change.

2001-01-07  Richard Henderson  <rth@redhat.com>

        * Makefile.in (DRIVER_DEFINES): Define ENABLE_SHARED_LIBGCC and
        NO_SHARED_LIBGCC_MULTILIB as required for the target.
        * gcc.c (init_spec): Massage the existing libgcc_spec into a
        variant that handles a shared libgcc.
        (process_command): Always validate -{static,shared}-libgcc.
        (do_spec_1): New 'M' case.
        * invoke.text (Link Options): Document -{static,shared}-libgcc.

2001-01-07  Richard Henderson  <rth@redhat.com>

        * Makefile.in (slibdir): New variable.
        (libgcc.mk): Pass SHLIB_INSTALL to mklibgcc.
        (installdirs): Create slibdir.
        (install-libgcc, install-multilib): Defer to libgcc.mk.
        * configure.in (slibdir): Substitute.
        * mklibgcc.in (install): New target.

        * config/t-linux (SHLIB_LINK): Create links for the soname.
        (SHLIB_INSTALL): New.
        * config/alpha/t-osf4 (SHLIB_INSTALL): New.
        * config/mips/t-iris6 (SHLIB_INSTALL): New.
        * config/rs6000/t-aix43 (SHLIB_INSTALL): New.
        * config/sparc/t-slibgcc (SHLIB_INSTALL): New.
        * config/sparc/t-slibgcc-sld (SHLIB_INSTALL): New.

2001-01-07  Richard Henderson  <rth@redhat.com>

        * config/rs6000/aix.h (LINK_LIBGCC_SPECIAL_1): New.
        * config/rs6000/rs6000.h (LIBGCC_SPEC): Remove.
        * config/rs6000/sysv4.h (LIBGCC_SPEC): Remove.

2001-01-07  Michael Hayes  <mhayes@redhat.com>

        * loop.c (count_loop_regs_set): Delete.
        (load_mems_and_recount_loop_regs_set): Delete.
        (loop_regs_scan): Merge common code from count_loop_regs_set,
        scan_loop, and load_mems_and_recount_loop_regs_set.
        (scan_loop): Call load_mems directly and loop_regs_scan
        again if new registers created.

2001-01-07  Neil Booth  <neil@daikokuya.demon.co.uk>

        * toplev.c (main): Call the front-end specific post_options
        hook if one is given.
        * toplev.h (struct_lang_hooks, lang_hooks): New.
        * c-lang.c (c_post_options, lang_hooks): Implement lang_hooks
        for the C front end.
        * cp/decl2.c (cxx_post_options, lang_hooks): Implement
        lang_hooks for the C++ front end.
        * objc/objc-act.c (objc_post_options, lang_hooks): Implement
        lang_hooks for the ObjC front end.
        * f/com.c (lang_hooks): Hooks for the Fortran front end.
        * java/lang.c (lang_hooks): Hooks for the Java front end.

2001-01-07  Neil Booth  <neil@daikokuya.demon.co.uk>

        * c-lex.c (init_c_lex): Request #define / #undef callbacks
        for verbose DWARF[2] debugging.
        (cb_define, cb_undef): The new callbacks.
        * toplev.h (debug_define, debug_undef): Make const correct.
        * toplev.c (debug_define, debug_undef): Similarly.  Do not
        perform the verbosity tests here anymore.

2001-01-07  Alexandre Oliva  <aoliva@redhat.com>

        * reload.c (subst_reloads): Take INSN argument.  When
        replacing a LABEL_REF in a JUMP_INSN, add a REG_LABEL note.
        * reload.h (subst_reloads): Adjust prototype.
        * reload1.c (reload_as_needed): Pass INSN to subst_reloads.
        * jump.c (mark_all_labels): Canonicalize any REG_LABEL notes
        present in JUMP_INSNs and copy them to JUMP_LABEL.
        * flow.c (find_label_refs, find_basic_blocks_1): Skip
        JUMP_INSNs and insns with REG_LABELs that are followed by
        JUMP_INSNs with the same REG_LABEL.
        * sched-rgn.c (is_cfg_nonregular): Likewise.
        * rtlanal.c (computed_jump_p): Make it false if a REG_LABEL
        note is available.
        * unroll.c (unroll_loop): Look for REG_LABEL notes in
        JUMP_INSNs too.
        * rtl.texi (REG_LABEL): Document usage in JUMP_INSNs.

2001-01-06  Richard Henderson  <rth@redhat.com>

        * loop.c (scan_loop): Use xcalloc for the regs array.
        (load_mems_and_recount_loop_regs_set): Zero the new memory
        received from xrealloc.

2001-01-06  Neil Booth  <neil@daikokuya.demon.co.uk>

        * mkdeps.c (deps_add_dep): Fix vector re-allocation.

Sat Jan  6 00:09:34 2001  J"orn Rennecke <amylaar@redhat.com>

        * integrate.c (copy_rtx_and_substitute): When copying
        an ignored return value, strip REG_FUNCTION_VALUE_P.

2001-01-06  Michael Hayes  <mhayes@redhat.com>

        * loop.c (debug_biv, debug_giv): New.
        (loop_biv_dump): Break out from ...
        (record_biv): ... here.
        (loop_giv_dump): Break out from ...
        (record_giv): ... here.
        (loop_bivs_check): Use print_simple_rtl.
        * unroll.c (loop_iterations): Use print_simple_rtl.

2000-01-05  John David Anglin  <dave@hiauly1.hia.nrc.ca>

        * pa.md (return, return_internal): Modify patterns to prevent regrename
        mucking with the return pointer.

2001-01-05  Richard Henderson  <rth@redhat.com>

        * dwarf2out.c (mem_loc_descriptor) [case MEM]: Revert 10-31 change.

Fri Jan  5 16:34:18 2001  Nick Clifton  <nickc@redhat.com>

        * config/v850/lib1funcs.asm: Replace __mulsi3 routine with faster
        version supplied by Matteo Frigo.

2001-01-05  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cpp.texi: Update for -MQ.
        * cppinit.c (cpp_create_reader): Always create pfile->deps.
        (cpp_cleanup): Always free pfile->deps.
        (initialize_dependency_output): Don't create pfile->deps.
        (cpp_handle_option): Similarly.
        (OPT_MQ): New.
        * gcc.c (cpp_options): Handle -MQ.
        (DEFAULT_WORD_SWITCH_TAKES_ARG): Add -MQ.
        * mkdeps.c (base_name): Remove.
        (deps_init): Don't allocate vector space until it's needed.
        (deps_free): Only free vectors if allocated.
        (deps_add_target, deps_add_dep): Update for initial allocation.
        (deps_add_default_target): Don't strip to the base_name.

2001-01-05  DJ Delorie <dj@redhat.com>

        * config/v850/v850.h (RETURN_ADDR_RTX): Define.
        (INIT_EXPANDERS): Define.

        * config/v850/v850.c (struct machine_function): Define.
        (v850_save_machine_status): New function.
        (v850_restore_machine_status): New function.
        (v850_return_addr): New function.
        (v850_init_expanders): New function.

        * config/v850/v850-protos.h: Add prototypes for v850_return_addr
        and v850_init_expanders.

2001-01-05  Zack Weinberg  <zack@wolery.stanford.edu>

        * cpplib.h (struct cpp_reader): Add help_only field.
        * cppinit.c (COMMAND_LINE_OPTIONS): Add OPT_version.
        (cpp_handle_option): Set pfile->help_only if we see -h,
        --help, -target-help, or --version.  Print version string but
        do not set help_only if we see -v or -version.  Make text
        printed by -v match that printed by (-)-version.

        * cppmain.c (main): Exit after option parsing if
        pfile->help_only is true.

        * toplev.c (independent_decode_option): Call print_version,
        then exit, if we see --version (but not -version).
        (print_version): Split lengthy message into two lines.

2001-01-05  Nick Clifton  <nickc@redhat.com>

        * config/v850/v850.c (v850_encode_data_area): Use alloca to create
        temporary string for initialisation before calling ggc_alloc_string.

2001-01-06  Michael Hayes  <mhayes@redhat.com>

        * rtl.h (print_simple_rtl): New.
        * print-rtl.c (print_simple_rtl): New.
        (flag_simple): New.
        (print_rtx): Disable printing of flags and modes, etc.,
        if `flag_simple` nonzero.

2001-01-05  Zack Weinberg  <zack@wolery.stanford.edu>

        * function.c (fixup_var_refs): Use push_to_full_sequence where
        possible.

2001-01-05  Michael Meissner  <meissner@redhat.com>

        * flags.h (flag_reorder_blocks): Add declaration.
        (flag_rename_block): Ditto.

2001-01-05  DJ Delorie  <dj@redhat.com>

        * function.c (reorder_blocks): Make sure the flags are all reset
        before using them to mark blocks, else a second invocation will
        corrupt the block chain.
        (reorder_blocks_0): New, resets the flags.

Fri Jan  5 20:34:06 2001  J"orn Rennecke <amylaar@redhat.com>

        * cse.c (find_comparison_args): Stop if the argument is known to
        be constant.

2001-01-05  Alexandre Oliva  <aoliva@redhat.com>

        * config/sh/sh.md (movdf): When splitting load into pair of
        registers, don't clobber the register used in the address too
        early.

2001-01-05  Jeffrey Oldham  <oldham@codesourcery.com>

        * varasm.c (mark_constant_pool): Improve initial comments.
        (mark_constants): Move marking of constants to mark_constant.
        (mark_constant): New function to recursively mark all constants
        referred to by a constant.

2001-01-05  Catherine Moore  <clm@redhat.com>

        * dbxout.c ((dbxout_parms): Handle invisible ref where decl is a REG.

2001-01-05  Phil Edwards  <pme@sources.redhat.com>

        * cp/lang-options.h:  Bring comment in line with reality.
        * f/lang-options.h:  Likewise.
        * java/lang-options.h:  Likewise.
        * objc/lang-options.h:  Likewise.
        * ch/lang-options.h:  Likewise.
        * f/g77.texi:  And update the manual.

2001-01-05  Marek Michalkiewicz  <marekm@linux.org.pl>
            Denis Chertykov  <denisc@overta.ru>

        * config/avr/avr-protos.h (avr_peep2_scratch_safe): Prototype.
        * config/avr/avr.c (avr_peep2_scratch_safe): New function.
        * config/avr/avr.md (all peepholes that request a scratch register):
        Call it, FAIL the peephole if not safe (in interrupt functions).

2001-01-05  Mark Mitchell  <mark@codesourcery.com>

        * ggc-page.c (NUM_EXTRA_ORDERS): Hardwire to zero for now.

2001-01-05  Joseph S. Myers  <jsm28@cam.ac.uk>

        * builtins.def (BUILT_IN_CONJ, BUILT_IN_CREAL, BUILT_IN_CIMAG):
        Define.
        * builtins.c (expand_builtin): Abort on BUILT_IN_CONJ,
        BUILT_IN_CREAL and BUILT_IN_CIMAG.
        * c-common.c (c_common_nodes_and_builtins): Create builtin conjf,
        conj, conjl, crealf, creal, creall, cimagf, cimag and cimagl.
        (expand_tree_builtin): Handle BUILT_IN_CONJ, BUILT_IN_CREAL and
        BUILT_IN_CIMAG.
        * extend.texi: Document these builtins.

2001-01-05  Daniel Berlin  <dberlin@redhat.com>

        * c-common.c (lang_get_alias_set): Say we know nothing of
        VECTOR_TYPE aliasing.

        * dwarf2out.c (is_base_type): Handle VECTOR_TYPE properly.

2001-01-05  Bruce Korb  <bkorb@gnu.org>

        * fixinc/mkfixinc.sh(vax-*-bsd): convert exit and atexit calls to
        their x* equivalent versions for atexit-less systems
        * fixinc/fixincl.c(main): do not return from main() on atexit-less
        systems (or any other system any more).

2001-01-05  Richard Earnshaw  <rearnsha@arm.com>

        * arm.md (ldmsi_postinc): Avoid use of match_dup between input and
        output operands.  Use arm_hard_register_operand for operand 4.
        (stmsi_postinc): Similarly.
        (ldmsi): Use arm_hard_register_operand for opernand 2.
        (stmsi): Similarly.
        * arm.c (arm_hard_register_operand): New function.
        * arm-protos.h (arm_hard_register_operand): Prototype it.

        * arm.h (HARD_REGNO_RENAME_OK): Define.

Fri Jan  5 16:29:49 MET 2001  Jan Hubicka  <jh@suse.cz>

        * simplify-rtx.c (cfc_args): add "unordered" field.
        (check_fold_consts): Set unordered field.
        (simplify_relational_operation): Simplify the unordered
        comparisons.

        * reg-stack.c (swap_rtx_condition): Ensure that the transformation
        is valid.

        * emit-rtl.c (try_split): Fix code to mark labels.
        * jump.c (mark_jump_label): Make global.
        * rtl.h (mark_jump_label): Declare.

        * predict.c (estimate_probability): Handle unordred comparisons.

2001-01-05  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cpp.texi: Update for -MP.  Clarify behaviour of -MT.
        * cppinit.c (initialize_dependency_output):  Update.
        (cpp_finish): Output dummy targets for -MP.
        (OPT_MP): New.
        (cpp_handle_option): Handle -MP.  Don't quote -MT options.
        * cpplib.h (struct cpp_options): Add deps_phony_targets.
        * gcc.c (cpp_options): Update to handle -MP.
        * mkdeps.c (deps_add_target, deps_add_default_target): Update
        to quote only the default target.
        (deps_phony_targets): Insert a preceding newline.  Rename from
        deps_dummy_targets for consistency.
        * mkdeps.h: Update

2001-01-05  Alexandre Oliva  <aoliva@redhat.com>

        * calls.c (emit_library_call_value_1): Support
        INIT_CUMULATIVE_LIBCALL_ARGS.
        * tm.texi (INIT_CUMULATIVE_LIBCALL_ARGS): Document it.

2001-01-04  Richard Henderson  <rth@redhat.com>

        * c-decl.c (finish_struct): Detect flexible array members
        used in an inappropriate context.
        * c-typeck.c (really_start_incremental_init): Special case
        constructor_max_index for zero length arrays.
        (pop_init_level): Allow initialization of flexible array
        members.  Deprecate initialization of zero length arrays.
        Don't issue missing initializer warning for flexible array
        members or zero length arrays.
        (process_init_element): Don't dereference null DECL_SIZE.
        * varasm.c (array_size_for_constructor): Return a HOST_WIDE_INT.
        Don't abort for empty constructors.  Use size_binop
        (output_constructor): Add commentary regarding zero length
        array futures.  Abort if we try to initialize an array of
        unspecified length with a non-empty constructor in the middle
        of a structure.

        * extend.texi (Zero Length): Update and clarify documentation
        on static initialization.

2001-01-05  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.c (c4x_expand_prologue): Don't compile an ISR
        with more than 32767 words of local storage.

2001-01-05  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.c (c4x_init_builtins): Remove builtin support
        for 'abs', 'labs', and 'fabs'.
        (c4x_expand_builtin): Likewise.
        * config/c4x/c4x.h (enum c4x_builtins): Likewise.

2001-01-05  Alexandre Oliva  <aoliva@redhat.com>

        * config/sh/sh.md (prget, prset): New insn types.
        (return delay slot): Dont' allow prset.
        (call, sfunc delay slot): Don't allow prget.
        (movsi_i, movsi_ie, movsi_i_lowpart): Create separate alternatives
        for prset and prget.

2001-01-05  Michael Hayes  <mhayes@redhat.com>

        * loop.h (struct loop_reg): New.
        (struct loop_regs): Change to use array of `struct loop_reg'.
        * loop.c: Replace assortment of varrays with single regs array.
        (count_one_set): Delete may_not_move array argument
        and use regs array instead.  All caller's changed.
        (count_loop_regs_set): Delete may_not_move and single_usage
        arguments and use regs array instead.  All caller's changed.
        (find_single_use_in_loop): Replace usage array argument with pointer
        to regs structure.  All caller's changed.
        (loop_optimize): Delete `moved_once' array.

2001-01-05  Michael Hayes  <mhayes@redhat.com>

        * loop.c (prescan_loop): Set loop_info->has_nonconst_call.
        Use it instead of loop_info->has_call for scanning loop mems.
        (check_dbra_loop): Replace loop_info->has_call test with
        loop_info->has_nonconst_call.

2000-01-04  Matthew Hiller  <hiller@redhat.com>

        * config/sh/sh.h (EPILOGUE_USES): Recognize fpscr as epilogue-used
        for TARGET_SH3E.

2001-01-04  Joseph S. Myers  <jsm28@cam.ac.uk>

        * fold-const.c (fold): When folding a CONJ_EXPR of a COMPLEX_CST,
        use TREE_REALPART and TREE_IMAGPART instead of TREE_OPERAND.

2001-01-04  Joseph S. Myers  <jsm28@cam.ac.uk>

        * c-common.c (SIZE_TYPE, WCHAR_TYPE): Define.
        (flag_short_double, flag_short_wchar): Define.
        (c_common_nodes_and_builtins): Create many tree nodes shared
        between C and C++ here instead of in cp/decl.c and ...
        * c-decl.c (init_decl_processing): ... here.
        (SIZE_TYPE, WCHAR_TYPE): Don't define.
        (flag_short_double, flag_short_wchar): Don't define.
        (record_builtin_type): New function.
        (build_void_list_node): New function.
        * c-common.h (flag_short_double, flag_short_wchar,
        record_builtin_type, build_void_list_node): Declare.

Thu Jan  4 21:09:47 2001  J"orn Rennecke <amylaar@redhat.com>

        * integrate.c (expand_inline_function): Don't put a virtual
        register into the reg map.

        * function.c (fixup_var_refs_1): If force_operand didn't put
        the address into the target, move it there.

2001-01-04  Mark Mitchell  <mark@codesourcery.com>

        Special-case tree_decl/tree_list allocations.
        * ggc-page.c (OBJECT_PER_PAGE): Reimplement.
        (OBJECT_SIZE): New macro.
        (NUM_EXTRA_ORDER): Likewise.
        (extra_order_size_table): New variable.
        (NUM_ORDERS): New macro.
        (objects_per_page_table): New variable.
        (object_size_table): New variable.
        (G.pages): Use NUM_ORDERS to bound the array.
        (G.page_tails): Likewise.
        (DIV_ROUND_UP): Remove.
        (BITMAP_SIZE): Use CEIL, instead of DIV_ROUND_UP.
        (alloc_page): Use OBJECT_SIZE.
        (size_lookup): Don't make it const.
        (ggc_alloc): Use OBJECT_SIZE.
        (ggc_set_mark): Likewise.
        (ggc_get_size): Likewise.
        (init_ggc): Set up the object_size_table, objects_per_page_table,
        and adjust size_lookup.
        (ggc_recalculate_in_use_p): Use CEIL, not DIV_ROUND_UP.
        (ggc_pop_context): Use NUM_ORDERS.
        (clear_marks): Likewise.
        (sweep_pages): Likewise.
        (poison_pages): Likewise.
        (ggc_print_statistics): Use OBJECT_SIZE.

Thu Jan  4 15:54:05 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * varasm.c (output_constructor): Use HOST_WIDE_INT for sizes.
        Only call array_size_for_constructor if last field and array type
        with no upper bound.

2001-01-04  Philip Blundell  <philb@gnu.org>

        * config/arm/arm.c (arm_gen_constant): Prefer to emit constants
        from bit 31 downwards, if this requires no more insns.
        (count_insns_for_constant): New helper function for above.

2001-01-04  Alexandre Oliva  <aoliva@redhat.com>

        * gencodes.c (output_predicate_decls): Remove empty initializer.

2001-01-04  Mark Mitchell  <mark@codesourcery.com>

        * tree.c (copy_node): Remove documentation about obstacks.
        (buidl1): Check that nobody tries to build 2-argument nodes this
        way.

2001-01-04  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * sparc.h (PREDICATE_CODES): Delete fp_sethi_p, fp_mov_p and
        fp_high_losum_p.

        * gencodes.c (output_predicate_decls): Fill empty initializer
        braces.

2001-01-04  Jakub Jelinek  <jakub@redhat.com>

        * tradcpp.c (deps_file, print_deps_missing_files): New variables.
        (main): Handle -MG, -MD, -MMD.  Bail out if -MG is given without -M
        or -MM.
        (do_include): Handle missing headers like cpp0.
        * cppfiles.c (_cpp_execute_include): Don't prefix absolute header
        paths with first include pathname.  Don't strcat to uninitialized
        string.

2001-01-04  Bernd Schmidt  <bernds@redhat.com>

        * regrename.c (regrename_optimize): Don't rename from frame pointer
        if frame_pointer_needed.
        (do_replace): Don't set ORIGINAL_REGNO to a hard register number.
        * config/ia64/ia64.c (emit_all_group_insn_barriers): New function.
        (ia64_reorg): Use it instead of scheduling if ! optimize.
        (errata_emit_nops): Properly call asm_noperands.
        (ia64_sched_reorder): Finish cycle if we see an asm.
        (ia64_variable_issue): Clear scheduling state after asms.

2001-01-04  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cpp.texi: Update for -MT.
        * cppinit.c (initialize_dependency_output): Add a default
        target if none has been given already.
        (no_tgt, OPT_MT): New.
        (cpp_handle_option): Handle -MT.  Update -M etc.
        * cpplib.h (struct cpp_options): Remove deps_target.
        * gcc.c (cpp_options): Handle -MT.
        * mkdeps.c (struct deps): Move from mkdeps.h.
        (deps_calc_target): Rename deps_add_default_target.  Add a
        default target if none has been specified already.
        * mkdeps.h (struct deps): Move to mkdeps.c.
        (deps_calc_target): Rename deps_add_default_target.

2000-01-03  Richard Henderson  <rth@redhat.com>

        * c-decl.c (grokdeclarator): Give zero-length arrays size zero.
        Remove dead code.
        * c-typeck.c (push_init_level): Move checks for flexible array
        members and zero length arrays ...
        (pop_init_level): ... here.  Silently discard empty initializations.
        Remove dead code.
        * varasm.c (output_constructor): Update for sizeof change to
        zero-length arrays.

        * extend.texi (Zero Length): Clarify semantics.

2001-01-03  Alexandre Oliva  <aoliva@redhat.com>

        * configure.in (tm.h): Include isns-codes.h last.
        * configure: Rebuilt.

2001-01-03  Richard Henderson  <rth@redhat.com>

        * config/alpha/alpha.md (addvsi3, addvdi3): New.
        (negvsi2, negvdi2, subvsi3, subvdi3, mulvsi3, mulvdi3): New.

2001-01-03  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

        * tradcpp.c (main): Make sure finclude() is called with a valid
        indepth value while handling -include.

2001-01-03  Alexandre Oliva  <aoliva@redhat.com>

        * gencodes.c (output_predicate_decls): New function.
        (main): Call it.
        * machmode.h (GET_MODE_MASK): Arrange for it to be defined
        even if it is not the first time machmode.h is #included.
        * config/sh/sh.c (fpul_operand): Declare MODE argument.
        * tm.texi (PREDICATE_CODES): Document predicate declarations.
        * gcc.texi (Copyright): Added 2001.

2001-01-03  Joseph S. Myers  <jsm28@cam.ac.uk>

        * c-common.c (c_common_lang_init): New function.  Warn if format
        warning options which only have effects when used with -Wformat
        are used without -Wformat.
        * c-common.h (c_common_lang_init): Declare.
        * c-lang.c (lang_init): Call c_common_lang_init.
        * objc/objc-act.c (lang_init): Call c_common_lang_init.

2001-01-03  Joseph S. Myers  <jsm28@cam.ac.uk>

        * configure.in: Check for the mktemp command.
        * configure: Regenerate.
        * gccbug.in: Use a separate temporary file $TEMP0 for one use of
        $TEMP.  Create temporary files with mktemp, if available at
        configure time; otherwise use set -C.  Remove temporary files
        before exit.

2001-01-03  Joseph S. Myers  <jsm28@cam.ac.uk>

        * configure.in: Require at least texinfo 4.0.  Check for whether
        Pod::Man is sufficiently recent to regenerate GCC manpages.
        * configure:  Regenerate.
        * Makefile.in (TEXI2POD): Call perl explicitly rather than relying
        on #!.
        (GENERATED_MANPAGES): Define.
        (generated-manpages): New target.  Depend on cpp.1 as well as
        gcov.1.
        (install-man): Depend on $(GENERATED_MANPAGES) (defined by
        configure to generated-manpages or empty) rather than on the
        manpages directly.  Remove execute permission from installed
        gcov.1 as well as cpp.1.
        * cpp.1, gcov.1: Regenerate.

2001-01-03  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (expand_builtin_strncmp): Use host_integerp and
        tree_low_cst.  Allow using cmpstrsi in more cases.

Wed Jan  3 10:48:43 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * config/sparc/sparc.h (RETURN_IN_MEMORY): Return 0 for variable
        sized types.

Wed Jan  3 12:22:32 2001  Alexandre Oliva  <aoliva@redhat.com>

        * build-make (HOST_CFLAGS): Added `-DGENERATOR_FILE'.
        * Makefile.in (HOST_CFLAGS): Mention build-make.

Wed Jan  3 08:53:50 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * config/sparc/sparc.md (nonlocal_goto): Emit goto_handler_and_restore
        as JUMP_INSN.

2001-01-01  Bernd Schmidt  <bernds@redhat.com>

        * builtins.c (expand_builtin_return_addr): Don't use MEM_ALIAS_SET on
        a REG rtx.

        * cse.c (cse_rtx_varies_p): Accept additional FROM_ALIAS arg.  All
        callers changed.

        * alias.c (throughout): Use ORIGINAL_REGNO when accessing
        reg_base_value and reg_known_value arrays.
        (init_alias_analysis): Add more cases to detect known values.
        * sched-deps.c (deps_may_trap_p): New function.
        (sched_analyze_2): Use it.

2001-01-03  Alexandre Oliva  <aoliva@redhat.com>

        * combine.c (simplify_shift_const): Even if we're sign-extracting,
        don't discard an ASHIFTRT if we're shifting in a wider mode.

2000-01-02  John David Anglin  <dave@hiauly1.hia.nrc.ca>

        * toplev.c (rest_of_compilation): Don't print basic block information
        when CFG isn't up to date.

2001-01-02  Mark Elbrecht  <snowball3@bigfoot.com>

        * config/i386/djgpp.h (DWARF2_DEBUGGING_INFO): Define.
        (UNALIGNED_INT_ASM_OP, UNALIGNED_DOUBLE_ASM_OP): Define.
        (UNALIGNED_SHORT_ASM_OP): Define.
        (CPP_PREDEFINES): Remove defines for GO32 and DJGPP.

2001-01-02  Mark Mitchell  <mark@codesourcery.com>

        * fold-const.c (fold_convert): Fix typo.

2001-01-02  Richard Henderson  <rth@redhat.com>

        * c-common.h (ASM_INPUT_P): New.
        * c-parse.in (asm): Set it when needed.
        * c-semantics.c (genrtl_asm_stmt): Test it instead of the
        existance of an operand.

Tue Jan  2 20:27:07 MET 2001  Jan Hubicka  <jh@suse.cz>

        * dwarf2out.c (stack_adjust_offset): Handle PRE_MODIFY.
        (dwarf2out_frame_debug_expr): Likewise.
        (mem_loc_descriptor): Handle PRE and POST_MODIFY.

Tue Jan  2 20:21:31 MET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.c (ix86_split_to_parts): Return number of part required;
        handle TFmodes.
        (print_operand, ix86_expand_branch, ix86_expand_fp_movcc): Handle
        TFmodes.
        (ix86_split_long_move): Use number of part returned
        by ix86_split_to_parts
        * i386.h (MASK_128BIT_LONG_DOUBLE, TARGET_128BIT_LONG_DOUBLE):
        New macros.
        (TARGET_SWITCHES): Add 128bit-long-double and 96bit-long-double
        (LONG_DOUBLE_TYPE_SIZE): Change from constant.
        (MAX_LONG_DOUBLE_TYPE_SIZE): New macro.
        (INTEL_EXTENDED_IEEE_FORMAT): Likewise.
        (ALIGN_MODE_128): Add TFmode.
        (IS_STACK_MODE): Likewise.
        (HARD_REGNO_NREGS): TFmode needs 3 registers.
        (HARD_REGNO_OK): Support TFmodes.
        (ASM_OUTPUT_LONG_DOUBLE): Handle TFmodes.
        * i386.md (scheduler definitions): Use memory operand to determine
        fst/fld instructions; use mode attribute to determine real mode of
        the instruction.
        (*tf): New patterns, expanders and splitters; based on XFmode patterns.
        * invoke.texi (128bit-long-double, 96bit-long-double): Document.

2001-01-02  Mark Mitchell  <mark@codesourcery.com>

        * tree.def (TRUTH_NOT_EXPR): Improve documentation.

Tue Jan  2 10:47:38 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.

        * expr.c (store_constructor_field): Update ALIGN before calling
        store_constructor.

2001-01-02  Jeffrey Oldham  <oldham@codesourcery.com>

        * config/mips/mips.c (function_arg): Don't pass NULL_TREE to
        host_integerp.

2001-01-02  Jeffrey Oldham  <oldham@codesourcery.com>

        * tm.texi (FUNCTION_ARG): Document that @var{type} can be an
        incomplete type.

Tue Jan  2 10:47:38 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.

        * c-decl.c (start_function): Don't warn on third parameter to main.

2001-01-02  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * tsystem.h: Define HAVE_DECL_GETOPT.

2001-01-02  Philip Blundell  <pb@futuretv.com>

        * config/arm/linux-gas.h (CLEAR_INSN_CACHE): Avoid illegal clobber
        of input operand.

2001-01-02  Richard Henderson  <rth@redhat.com>

        * alpha.md (*ze_and_ne): Duplicate insn condition to split.

2001-01-02  Andreas Jaeger  <aj@suse.de>

        * c-decl.c (c_decode_option): Remove support of
        -Wmissing-noreturn.

        * toplev.c (documented_lang_options): Remove -Wmissing-noreturn.
        (W_options): Add -Wmissing-noreturn here.

        * flow.c: Define lang_missing_noreturn_ok_p.
        (check_function_return_warnings): Use it.

        * c-common.h: Declare lang_missing_noreturn_ok_p.

        * c-lang.c (c_missing_noreturn_ok_p): New function.
        (lang_init): Set lang_missing_noreturn_ok_p.

        * invoke.texi (Warning Options): Document this.

2000-12-27  Phil Edwards  <pme@sources.redhat.com>

        * extend.texi (C++ Extensions):  New node for C++ attributes;
          describe init_priority and com_interface.
        * invoke.texi:  Remove -finit-priority as it now has zero effect.
        * install.texi:  Fix xref syntax.
        * md.texi:  Likewise.

Mon Jan  1 21:28:29 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * config.gcc (sparc64-wrs-vxworks*): New case.
        * config/sparc/vxsparc64.h, config/sparc/t-vxsparc64: New files.

        * config/sparc/sparc.c (sparc_override_options): Do support different
        pointer and architecture size.
        * config/sparc/sparc.h (MIN_UNITS_PER_WORD): Always 4.
        (POINTERS_EXTEND_UNSIGNED): Define.
        (Pmode): Test TARGET_ARCH64, not TARGET_PTR64.
        (FUNCTION_MODE): Define to be Pmode.
        * config/sparc/sparc.md (64-bit call patterns): FUNCTION_MODE now DI.

        * function.c (expand_function_end): Properly handle DECL_RESULT
        and copy when ptr_mode != Pmode.
        * expmed.c (make_tree): Convert X from Pmode to ptr_mode, if needed.

2001-01-01  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * c-common.c (c_common_nodes_and_builtins): Set prototype
        parameters for __builtin_fputs, __builtin_fputc and
        __builtin_fwrite.  Don't declare plain fputc as a builtin.

2001-01-01  John David Anglin  <dave@hiauly1.hia.nrc.ca>

        * loop.c (add_label_notes): Increment the label usage count when
        a note is added to an insn which refers to a CODE_LABEL.
        * gcse.c (add_label_notes): Likewise.

2001-01-01  Andreas Jaeger  <aj@suse.de>

        * loop.c (scan_loop): Use xmalloc to allocate movables.

2001-01-01  Alexandre Oliva  <aoliva@redhat.com>

        * tm.texi (REGISTER_MOVE_COST): Add a mode argument.
        * reload.c (REGISTER_MOVE_COST): Likewise.  Adjust all callers.
        * reload1.c (REGISTER_MOVE_COST): Likewise.
        * regclass.c (REGISTER_MOVE_COST): Likewise.
        (move_cost, may_move_in_cost, may_move_out_cost): Add mode
        dimension.  Adjust all users.
        (init_reg_sets_1): Iterate on all modes.
        * config/1750a/1750a.h (REGISTER_MOVE_COST): Adjust.
        * config/a29k/a29k.h (REGISTER_MOVE_COST): Adjust.
        * config/alpha/alpha.h (REGISTER_MOVE_COST): Adjust.
        * config/arc/arc.h (REGISTER_MOVE_COST): Adjust.
        * config/arm/arm.h (REGISTER_MOVE_COST): Adjust.
        * config/avr/avr.h (REGISTER_MOVE_COST): Adjust.
        * config/c4x/c4x.h (REGISTER_MOVE_COST): Adjust.
        * config/d30v/d30v.h (REGISTER_MOVE_COST): Adjust.
        * config/dsp16xx/dsp16xx.h (REGISTER_MOVE_COST): Adjust.
        * config/h8300/h8300.h (REGISTER_MOVE_COST): Adjust.
        * config/i386/i386.h (REGISTER_MOVE_COST): Adjust.
        * config/ia64/ia64.h (REGISTER_MOVE_COST): Adjust.
        * config/m32r/m32r.h (REGISTER_MOVE_COST): Adjust.
        * config/m68hc11/m68hc11.h (REGISTER_MOVE_COST): Adjust.
        * config/m68k/m68k.h (REGISTER_MOVE_COST): Adjust.
        * config/mcore/mcore.h (REGISTER_MOVE_COST): Adjust.
        * config/mips/mips.h (REGISTER_MOVE_COST): Adjust.
        * config/mn10200/mn10200.h (REGISTER_MOVE_COST): Adjust.
        * config/mn10300/mn10300.h (REGISTER_MOVE_COST): Adjust.
        * config/ns32k/ns32k.h (REGISTER_MOVE_COST): Adjust.
        * config/pa/pa.h (REGISTER_MOVE_COST): Adjust.
        * config/pdp11/pdp11.h (REGISTER_MOVE_COST): Adjust.
        * config/pj/pj.h (REGISTER_MOVE_COST): Adjust.
        * config/romp/romp.h (REGISTER_MOVE_COST): Adjust.
        * config/rs6000/rs6000.h (REGISTER_MOVE_COST): Adjust.
        * config/sh/sh.h (REGISTER_MOVE_COST): Adjust.
        * config/sparc/sparc.h (REGISTER_MOVE_COST): Adjust.

2001-01-01  Bernd Schmidt  <bernds@redhat.com>

        * alias.c (fixed_scalar_and_varying_struct): Adjust prototype of
        arg VARIES_P.  Call it with extra arg.
        (true_dependence): Likewise.
        * rtl.h (rtx_addr_can_trap_p): Declare.
        (rtx_varies_p, rtx_addr_varies_p, true_dependence): Update
        prototypes.
        * rtlanal.c (rtx_addr_can_trap_p): No longer static.
        (rtx_varies_p): Accept extra arg FOR_ALIAS; only disallow
        pic offset table register if it's zero.  All callers changed.
        (rtx_addr_varies_p): Accept extra arg FOR_ALIAS; all callers changed.

Mon Jan  1 07:38:33 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * explow.c (convert_memory_address, case SYMBOL_REF): Copy
        STRING_POOL_ADDRESS_P.

        * config/sparc/sparc.c (input_operand): Properly test for short op.

        * config.gcc (sparc-*-elf): Include sparc/sol2.h.
        (sparc-*-rtems*): Include sparc/sol2.h and sparc/elf.h.
        (sparclite-*-elf*, sparc86x-*-elf*): Likewise.
        * config/sparc/elf.h: No longer include sol2.h.
        * config/sparc/lifeelf.h: No longer include sparc/elf.h.
        * config/sparc/rtemself.h, config/sparc/sp86x-elf.h: Likewise.

        * config/sparc/sparc.md: Test TARGET_ARCH64 instead of TARGET_PTR64.

2001-01-01  Michael Hayes  <mhayes@redhat.com>

        * loop.c (check_insn_for_bivs): Use ivs->n_regs to check array bounds.
        (find_mem_givs, record_biv, maybe_eliminate_biv): Likewise.
        (record_initial): Likewise.
        * unroll.c (copy_loop_body, loop_iterations): Likewise.
        (remap_split_bivs): Likewise.

2001-01-01  Michael Hayes  <mhayes@redhat.com>

        * loop.c (loop_ivs_free): New function.
        (strength_reduce): Break out from...

2001-01-01  Michael Hayes  <mhayes@redhat.com>

        * loop.h (struct iv): New.
        (REG_IV_TYPE, REG_IV_CLASS, REG_INFO): Modify to use 'struct iv'.
        (struct loop_ivs): Replace 'reg_iv_type', 'reg_iv_info',
        'reg_biv_class' fields with 'regs' and 'n_regs'.
        (struct ivs): Rename 'loop_iv_list' field to 'list'.
        * loop.c (loop_bivs_find, strength_reduce): Use ivs->regs array.
        * unroll.c (loop_iterations): Check array bounds with ivs->n_regs.

2000-12-31  Alexandre Oliva  <aoliva@redhat.com>

        * resource.c (mark_referenced_resources): Abort() before
        attempting to mark a pseudo register.
        (mark_set_resources): Likewise.

2001-01-01  Michael Hayes  <mhayes@redhat.com>

        * loop.h (REG_IV_CLASS): New accessor macro.
        * loop.c (REG_IV_CLASS): Use it instead of reg_iv_class array.
        * unroll.c (REG_IV_CLASS): Likewise.

See ChangeLog.4 for earlier changes.