* Makefile.in (install-man): Remove explicit dependency on

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

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.