* jump.c (mark_jump_label): Fix thinko in 2001-05-19 change.

[official-gcc.git] / gcc / ChangeLog

2001-05-23  Mark Mitchell  <mark@codesourcery.com>

        * jump.c (mark_jump_label): Fix thinko in 2001-05-19 change.

2001-05-22  Richard Henderson  <rth@redhat.com>

        * config/mips/iris6.h (EH_FRAME_SECTION_ASM_OP): Give the
        section pointer alignment.

        * doc/install.texi (alpha-linux): Require binutils >= 2.10.

        * unwind-dw2-fde.c (__deregister_frame_info): Stringize use
        of __USER_LABEL_PREFIX__.

2001-05-22  Richard Henderson  <rth@redhat.com>

        * unwind-dw2-fde.c (__deregister_frame_info): Stubbify in favour of...
        (__deregister_frame_info_bases): New.
        * unwind-dw2-fde.h: Declare it.
        * libgcc-std.ver: Export it.
        * crtstuff.c (__do_global_dtors_aux): Call it if we would have
        called __register_frame_info_bases.

2001-05-22  Andrew MacLeod  <amacleod@redhat.com>

        * builtins.c (expand_builtin_longjmp): A longjmp can be a call too.
        * config/ia64/ia64.md (nonlocal_goto): Reverse label and frame pointer
        parameters to __ia64_nonlocal_goto. Flag as NO_RETURN.
        * config/ia64/ia64.c (ia64_expand_epilogue): Make sure we are issuing 
        "r2" to the assembly file. Only issue allocs with non-zero parameters.

2001-05-22  Richard Henderson  <rth@redhat.com>

        * libgcc2.c: Include hwint.h.

2001-05-22  Richard Henderson  <rth@redhat.com>

        * crtstuff.c (__register_frame_info_bases): Declare.
        (frame_dummy): Use it, if CRT_GET_RFIB_TEXT or CRT_GET_RFIB_DATA.
        (__do_global_dtors_aux, __do_global_dtors): Streamline.

        * config/i386/linux.h (ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX): New.
        (CRT_GET_RFIB_DATA): New.
        * config/i386/sysv4.h: Likewise.
        * config/i386/sco5.h: Likewise.
        (ASM_PREFERRED_EH_DATA_FORMAT): New.

2001-05-22  Gerald Pfeifer  <pfeifer@dbai.tuwien.ac.at>
        
        * doc/install.texi (Specific): Remove a bogus and duplicate part
        copied from the end of the document.

2001-05-22  Gerald Pfeifer  <pfeifer@dbai.tuwien.ac.at>

        * install.texi: Remove obsolete information on SunOS as well as
        i386-sun-sunos4, i860-intel-osf1, and powerpcle-*-solaris2*.
        (Installing GNU CC on the Sun): Remove section.

2001-05-22  Alexandre Oliva  <aoliva@redhat.com>

        * cppfiles.c (remove_component_p): Don't assume lstat/stat will
        keep errno unchanged on success.

2001-05-22  Joseph S. Myers  <jsm28@cam.ac.uk>

        * c-lex.c (lex_number): If pedantic and not C99, pedwarn exactly
        once for hexadecimal floats, whether or not they contain a decimal
        point.  Don't let the setting of pedantic otherwise affect the
        parsing of hexadecimal floats.

2001-05-22  Gerald Pfeifer  <pfeifer@dbai.tuwien.ac.at>

        * README.ACORN: Remove obsolete file.

2001-05-22  Joseph S. Myers  <jsm28@cam.ac.uk>

        Merge objc.texi from mainline:
        2001-02-28  Ovidiu Predescu  <ovidiu@cup.hp.com>
        * objc-features.texi: Document the @compatibility_alias compiler
        directive (description from Nicola Pero <n.pero@mi.flashnet.it>).

2001-05-21  Mark Mitchell  <mark@codesourcery.com>

        * tree.h (type_num_arguments): Declare it.
        * tree.c (type_num_arguments): New function.

2001-05-21  Richard Henderson  <rth@redhat.com>

        * dwarf2out.c (current_funcdef_number): Move outside dwarf2
        conditional ifdef.

2001-05-21  Mark Mitchell  <mark@codesourcery.com>

        * c-decl.c (finish_decl): Don't set DECL_C_HARD_REGISTER for
        non-register variables.
        * extend.texi: Document that asm-specifications do not make sense
        for non-static local variables.

2001-05-17  Andrew Haley  <aph@redhat.com>

        * config/rs6000/linux.h (MD_FALLBACK_FRAME_STATE_FOR): New.

2001-05-20  Mark Mitchell  <mark@codesourcery.com>
            Jim Wilson  <wilson@redhat.com>
        
        * libgcc2.h (TItype): Do not assume that the host has 64-bit ntegers.
        (W_TYPE_SIZE): Likewise.

2001-05-21  Joseph S. Myers  <jsm28@cam.ac.uk>

        * extend.texi: Clarify documentation of extensions included in ISO
        C99.  Prefer C99 terminology and syntax to old GNU terminology and
        syntax.  Add more index entries.  Document mixed declarations and
        code as an extension in C89 mode.  Warn about future changes to
        semantics of inline functions.  Fixes PR other/930.

2001-05-20  Richard Henderson  <rth@redhat.com>

        * sched-deps.c (sched_analyze_insn): Force volatile memory reads
        to be output before a branch.

        2001-05-12  Neil Booth  <neil@cat.daikokuya.demon.co.uk>
        * sched-deps.c (sched_analyze_insn): Remove unused vars.

        2001-04-05  Bernd Schmidt  <bernds@redhat.com>
        * sched-deps.c (sched_analyze_insn): Revert more of the March 27
        change.

        2001-04-04  Bernd Schmidt  <bernds@redhat.com>
        * sched-deps.c (sched_analyze_insn): Partially revert March 27
        change.

2001-05-20  Richard Henderson  <rth@redhat.com>

        * Makefile.in (dwarf2asm.o): Depend on $(TREE_H).

2001-05-20  Richard Henderson  <rth@redhat.com>

        * config/i386/att.h (ASM_SHORT, ASM_LONG): Add trailing \t.
        (ASM_DOUBLE): Remove.
        * config/i386/bsd.h, config/i386/sco5.h: Likewise.
        * config/i386/sun386.h: Likewise.

        * config/i386/i386.h (UNALIGNED_SHORT_ASM_OP): New.
        (UNALIGNED_INT_ASM_OP, INT_ASM_OP): New.

        * config/i386/cygwin.h (INT_ASM_OP): Remove.
        * config/i386/freebsd-aout.h, config/i386/i386-aout.h: Likewise.
        * config/i386/i386-coff.h, config/i386/i386-interix.h: Likewise.
        * config/i386/netbsd.h, config/i386/openbsd.h: Likewise.

        * config/i386/cygwin.h: Adjust uses of ASM_LONG for trailing \t.
        * config/i386/djgpp.h, config/i386/i386.h: Likewise.
        * config/i386/i386elf.h, config/i386/ptx4-i.h: Likewise.
        * config/i386/sco5.h, config/i386/svr3gas.h: Likewise.
        * config/i386/sysv4.h, config/i386/vsta.h: Likewise.
        * config/i386/win-nt.h, config/i386/win32.h: Likewise.

2001-05-20  Joseph S. Myers  <jsm28@cam.ac.uk>

        * invoke.texi: Add more options to summary list.

2001-05-19  Zack Weinberg  <zackw@stanford.edu>

        * extend.texi: Document #pragma GCC java_exceptions.

2001-05-20  Joseph S. Myers  <jsm28@cam.ac.uk>

        * invoke.texi: Document meaning of -pedantic when -std=gnu* is
        used.  Fixes PR c/2291.
        * gcc.1: Regenerate.

2001-05-20  Stephane Carrez  <Stephane.Carrez@worldnet.fr>

        * config/m68hc11/m68hc11.c (m68hc11_override_options): Ignore
        the -fpic and -fPIC options, clear flag_pic.

2001-05-19  Brad Lucier  <lucier@math.purdue.edu>, Alexandre Oliva  <aoliva@redhat.com>

        * Makefile.in (alloca.o): Depend on $(GCONFIG_H).
        ($(HOST_PREFIX_1)alloca.o): Depend on $(HCONFIG_H).  Arrange for
        hconfig.h to be included.

Sat May 19 18:23:04 2001  Richard Henderson <rth@redhat.com>

        * except.c (dw2_build_landing_pads): Use word_mode, not Pmode,
        as ncessary.
        (expand_eh_return): Convert between word_mode and Pmode.
        * unwind-dw2.c (extract_cie_info): Do not assume words and pointers
        are the same size.
        (execute_stack_op): Likewise.
        (execute_cfa_program): Likewise.
        (uw_frame_state_for): Likewise.
        (uw_update_context_1): Likewise.
        * unwind.inc (_Unwind_Reason_Code): Likewise.
        * config/mips/mips.h (EH_RETURN_DATA_REGNO): Define.
        (EH_RETURN_STACKADJ_RTX): Likewise.
        * config/mips/mips.c (compute_frame_size): Make space for saving
        EH return registers.
        (mips_expand_epilogue): Handle EH stack adjustments.
        * config/mips/mips.md (eh_return): New pattern.
        (eh_set_lr_si): Likewise.
        (eh_set_lr_di): Likewise.
        Add splitter to perform EH return after reload.
                
2001-05-19  Mark Mitchell  <mark@codesourcery.com>

        * jump.c (mark_jump_label): Tidy previous change.

2001-05-17  Brendan Conoboy <blc@cygnus.com>
            Bruce Korb <bkorb@gnu.org>

        * fixinc/fixincl.sh(FIXINC): accept local directory if fixincl not
        found in fixinc directory.  Facilitates binary distributions.

2001-05-19  Bruce Korb <bkorb@gnu.org>

        * fixinc/fixincl.tpl: rewritten as an AutoGen version 5 template
        * fixinc/genfixes: emit a warning if AutoGen is out of date
        * fixinc/fixincl.x: regen
        * fixinc/Makefile.in: open stdin for those building with a closed one.

2001-05-19  Mark Mitchell  <mark@codesourcery.com>

        * jump.c (mark_jump_label): Tidy previous change.
        
        * jump.c (jump_optimize_1): Tidy.
        (mark_jump_label): When changing the label in a LABEL_REF, change
        update any REG_EQUAL notes as well.

        * defaults.h (TARGET_ALLOWS_PROFILING_WITHOUT_FRAME_POINTER): New
        macro.
        * tm.texi (TARGET_ALLOWS_PROFILING_WITHOUT_FRAME_POINTER):
        Document it.
        * toplev.c (main): If the target does not allow profiling without
        a frame pointer, issue an error message.
        * config/i386/linux.h (TARGET_ALLOWS_PROFILING_WITHOUT_FRAME_POINTER): 
        Define it to false.
        
Sat May 19 09:40:45 2001  Denis Chertykov  <denisc@overta.ru>

        * regrename.c (regrename_optimize): frame pointer register can
        use a few hardregs.

2001-05-18  John David Anglin  <dave@hiauly1.hia.nrc.ca>

        * toplev.c (note_outlining_of_inline_function): Add ATTRIBUTE_UNUSED
        to argument declaration.

2001-05-18  Jason Merrill  <jason_merrill@redhat.com>

        * README.DWARF: Move into dwarfout.c.

2001-05-18  Stan Shebs  <shebs@apple.com>

        * configure.in (gcc_cv_as_eh_frame): Cope with old assemblers.
        * configure: Regenerate.

2001-05-18  Geoff Keating  <geoffk@redhat.com>

        * config/rs6000/rs6000.c (rs6000_emit_prologue): Don't save
        the link register if we're not going to use it.

        * config/rs6000/rs6000.c (output_function_profiler): Fix a warning.

2001-05-18  Per Bothner  <per@bothner.com>

        Changes needed for java/jvspec.c
        * gcc.h (n_infiles, outfiles):  Add declarations.
        * gcc.c (n_infiles, outfiles):  Mske no longer static.

Fri May 18 10:12:19 2001  Jeffrey A Law  (law@cygnus.com)

        * config/pa/som.h (EXCEPTION_SECTION): Define.

2001-05-18  Bernd Schmidt  <bernds@redhat.com>

        Revert
        2001-02-09  Nick Clifton  <nickc@redhat.com>
        * config/arm/arm.md: Change output constraint on post inc
        load/store multiple patterns to be a read/write constraint.

2001-05-18  Mark Mitchell  <mark@codesourcery.com>

        * function.c (expand_function_start): Avoid creating BLKmode
        pseudos.

2001-05-17  Mark Mitchell  <mark@codesourcery.com>

        * dwarf2out.c (output_comp_unit): Always output a compilation-unit
        DIE, even if it has no children.
        (dwarf2out_finish): Always output the line-number table, even if
        it has no content.

2000-05-18  David Edelsohn  <edelsohn@gnu.org>

        * rs6000.md (movsfcc,movdfcc): Remove NE case.

2000-05-17  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

        * config/rs6000/rs6000.c (rs6000_legitimate_address): Allow any stack
        offsets if not REG_OK_STRICT.

        * config/rs6000/rs6000.h (REG_OK_STRICT_FLAG): New macro.
        (INT_REG_OK_FOR_INDEX_P): Likewise.
        (INT_REG_OK_FOR_BASE_P): Likewise.
        (REG_OK_FOR_INDEX_P): Use INT_REG_OK_FOR_INDEX_P.
        (REG_OK_FOR_BASE_P): Use INT_REG_OK_FOR_BASE_P.
        (LEGITIMATE_OFFSET_ADDRESS_P): Use INT_REG_OK_FOR_INDEX_P and
        INT_REG_OK_FOR_BASE_P instead of REG_OK_FOR_INDEX_P and
        REG_OK_FOR_BASE_P. Take an additional parameter.
        (LEGITIMATE_INDEXED_ADDRESS_P): Likeewise.
        (LEGITIMATE_INDIRECT_ADDRESS_P): Likewise.
        (LEGITIMATE_LO_SUM_ADDRESS_P): Likewise.
        (GO_IF_LEGITIMATE_ADDRESS): Move code into new function
        rs6000_legitimate_address() and use it.
        * config/rs6000/rs6000.c: Update all callers.
        (rs6000_legitimate_address): New function.

2001-05-17  Mark Kettenis  <kettenis@wins.uva.nl>

        * dwarf2out.c (modified_type_die): Equate qualified type to die.

2001-05-17  Mark Mitchell  <mark@codesourcery.com>

        * doc/install.texi: Update Solaris information.

        * except.h (protect_cleanup_actions): Remove it.
        (lang_protect_cleanup_actions): Declare it.
        * except.c (protect_cleanup_actions): Remove it.
        (lang_protect_cleanup_actions): New variable.
        (init_eh): Don't make protect_cleanup_actions a GC root.
        (expand_eh_region_and_cleanup): Call
        lang_protect_cleanup_actions.
        (output_function_exception_table): Remove unused `align'
        variable.
        * varasm.c (assemble_external): Abort if we have not yet
        opened the assembly output file.
        
Thu May 17 11:53:49 2001  Jeffrey A Law  (law@cygnus.com)

        * pa.c (hppa_init_pic_save): No longer update last_parm_insn.

        * except.c (sjlj_emit_function_enter): Call assemble_external_libcall
        for eh_personality_libfunc.

2001-05-17  Bernd Schmidt  <bernds@redhat.com>

        * reload1.c (delete_output_reload): Call eliminate_regs on substed.
        (reload_as_needed): Call update_eliminable_offsets a bit later.

        * expr.c (protect_from_queue): Protect against subsequent calls to
        emit_queue.
        (expand_expr, case ADDR_EXPR): Prevent protect_from_queue from being
        too clever.

2001-05-17  Jeffrey Oldham  <oldham@codesourcery.com>

        * dbxout.c (dbxout_symbol_location): For CONCAT, skip types not
        COMPLEX_TYPE.

2001-05-17  Gerald Pfeifer  <pfeifer@dbai.tuwien.ac.at>

        * gccbug.in (CATEGORIES): Add "bootstrap".

2001-05-17  Bernd Schmidt  <bernds@redhat.com>

        * stmt.c (expand_asm_operands): For inout operands, make sure
        the substitution of '=' for '+' makes it into the rtl.

2001-05-17  Gerald Pfeifer  <pfeifer@dbai.tuwien.ac.at>

        * gcc.texi (gccbug): Refer to the web pages for detailed information
        on GNATS.

2001-05-16  Wolfgang Bangerth <wolfgang.bangerth@iwr.uni-heidelberg.de>
        Bruce Korb <bkorb@gnu.org>

        * fixinc/inclhack.def(solaris27_mutex_init):  Fix broken mutex
        initializer

2001-05-16  Zack Weinberg  <zackw@stanford.edu>

        * assert.h: Removed.
        * libgcc-std.ver, sys-protos.h: Remove __eprintf.
        * libgcc2.c: Document that __eprintf exists for backward
        compatibility only.
        * configure.in: Correct commentary now assert.h does not exist.
        * configure: Regenerate.

        * Makefile.in: Delete INSTALL_ASSERT_H, assertdir, and all
        references to either. Delete install-assert-h target.  Do not
        create $(assertdir) or $(gcc_tooldir) in mkinstalldirs target.
        Move _eprintf from LIB2FUNCS to LIB2FUNCS_ST; pass
        LIB2FUNCS_ST to mklibgcc.
        * cross-make: Don't set assertdir.
        * mklibgcc.in: Add support for LIB2FUNCS_ST.

        * config/t-freebsd, config/t-linux, config/t-linux-aout,
        config/t-netbsd, config/t-openbsd, config/t-rtems, config/x-linux, 
        config/alpha/t-interix, config/i386/t-beos, config/i386/t-interix, 
        config/mcore/t-mcore, config/mcore/t-mcore-pe:
        No need to set INSTALL_ASSERT_H.

        * fixinc/fixinc.dgux, fixinc/fixinc.interix, fixinc/fixinc.ptx,
        fixinc/fixinc.svr4, fixinc/fixinc.winnnt, fixinc/fixinc.wrap,
        fixinc/fixincl.sh: Don't install assert.h.

2001-05-16  Zack Weinberg  <zackw@stanford.edu>

        * i386.md: Add two peepholes to clean up code generated by
        cmpstr* expanders.

2001-05-16  Richard Henderson  <rth@redhat.com>

        * dwarf2asm.c (eh_data_format_name): Add names for "pointer size"
        variants of non-absolute encodings.

        * config/i386/i386.h (ASM_PREFERRED_EH_DATA_FORMAT): New.

        * libgcc-std.ver (_Unwind_Find_FDE, __register_frame_info_bases,
        __register_frame_info_table_bases): Export.

Wed May 16 13:38:21 2001  Jeffrey A Law  (law@cygnus.com)

        * pa32-regs.h (HARD_REGNO_MODE_OK): Allow TI/TFmode values in
        GPRs.

2001-05-16  Richard Henderson  <rth@redhat.com>

        * except.c (eh_data_format_name): Move to ...
        * dwarf2asm.c: ... here.  Use designated initializers if available.
        (dw2_asm_output_encoded_addr_rtx): Accept varargs commentary.
        * dwarf2asm.h: Update declarations.
        * dwarf2out.c (output_cfi) [DW_CFA_set_loc]: If for_eh, mind
        ASM_PREFERRED_EH_DATA_FORMAT.
        (output_call_frame_info): Likewise.  Use 'L' augmentation for
        the LSDA encoding.

        * unwind-dw2-fde.h (struct fde_vector): New.
        (struct old_object): Rename from struct object.
        (struct object): New.
        (__register_frame_info_bases): Declare.
        (__register_frame_info_table_bases): Declare.
        (struct dwarf_fde): Remove explicit pc_begin/pc_range members.
        * unwind-dw2-fde.c (objects): Remove.
        (unseen_objects, seen_objects): New.
        (__register_frame_info_bases): New.
        (__register_frame_info): Use it.
        (__register_frame_info_table_bases): New.
        (__register_frame_info_table): Use it.
        (__deregister_frame_info): Rewrite for changed object struct.
        (base_from_object, get_cie_encoding, get_fde_encoding): New.
        (fde_unencoded_compare): Rename from fde_compare; uninline.
        (fde_single_encoding_compare, fde_mixed_encoding_compare): New.
        (start_fde_sort): Adjust for new definition of fde_vector.
        (fde_insert): Likewise.
        (end_fde_sort): Likewise.  Select comparison function based
        on properties of the object.
        (fde_split): Take object and fde_compare_t arguments.
        (frame_heapsort, fde_merge): Likewise.
        (classify_object_over_fdes): Rename from count_fdes.  Handle
        encoded pointers.  Collect encoding, mixed_encoding, and pc_begin
        for the object.
        (add_fdes): Handle encoded pointers.
        (init_object): Rename from frame_init.  Update for new struct object.
        (linear_search_fdes): Rename from search_fdes.  Handle encoded
        pointers.
        (binary_search_unencoded_fdes): Broken out from _Unwind_Find_FDE.
        (binary_search_single_encoding_fdes): New.
        (binary_search_mixed_encoding_fdes): New.
        (search_object): New.
        (_Unwind_Find_FDE): Update for new struct object.  Fill in
        the dwarf_eh_bases.
        * unwind-dw2.c: Include unwind-pe.h.  Constify all pointers
        iterating over EH data.
        (_Unwind_FrameState): Remove saw_lsda, addr_encoding.  Add
        fde_encoding, lsda_encoding.
        (read_uleb128, read_sleb128): Remove.
        (read_encoded_pointer): Remove.  All callers use read_encoded_value.
        (extract_cie_info): Set lsda_encoding from 'L' augmentation.
        (uw_frame_state_for): Don't set bases.func.  Handle encoded fde
        pointers.
        * unwind-pe.h: Add "struct" to _Unwind_Context references.

2001-05-16  Andreas Jaeger  <aj@suse.de>

        * Makefile.in (toplev.o): Add dependency on dwarf2asm.h.

        * toplev.c: Include dwarf2asm.h for prototype of
        dw2_output_indirect_constants.

2001-05-16  Richard Henderson  <rth@redhat.com>

        2001-03-08  Richard Henderson  <rth@redhat.com>
        * configure.in (HAVE_AS_LEB128): New assembler check.
        * configure, config.in: Rebuilt.

2001-05-16  David Edelsohn  <edelsohn@gnu.org>

        * doc/install.texi: Update AIX information.
        * README.RS6000: Remove obsolete file.

2001-05-16  John David Anglin  <dave@hiauly1.hia.nrc.ca>

        * pa-hpux10.h (THREAD_MODEL_SPEC): Define.

2001-05-16  Jakub Jelinek  <jakub@redhat.com>
            Nathan Sidwell  <nathan@codesourcery.com>

        * gcc.c (give_switch): Don't write before start of string.
        Always append suffix.

2001-05-16  Nathan Sidwell  <nathan@codesourcery.com>

        * cpplex.c (_cpp_lex_token, '/' case): Comments can't appear
        after stage3.

2001-05-16  Dean Wakerley  <dean@wakerley.com>

        * doc/install.texi: New file. Converted to texinfo from the HTML
        documentation in wwwdocs/htdocs/install.

2001-05-16  Gerald Pfeifer  <pfeifer@dbai.tuwien.ac.at>

        * README.ALTOS: Remove obsolete file.

Tue May 15 22:12:41 2001  Jeffrey A Law  (law@cygnus.com)

        * flow.c (life_analysis): After life analysis is complete, do
        an optional scan over insns looking for REG_LABEL notes that
        reference a deleted label.
        (propagate_block_delete_insn): Verify INOTE is a CODE_LABEL
        before peeking at LABEL_NUSES.

2001-05-15  Richard Henderson  <rth@redhat.com>

        * unwind-sjlj.c (_Unwind_GetDataRelBase): New.
        (_Unwind_GetTextRelBase): New.

2001-05-15  Mark Mitchell  <mark@codesourcery.com>

        * config/sparc/sol2.h (CPLUSPLUS_CPP_SPEC): Define.

2001-05-15  Loren J. Rittle  <ljrittle@acm.org>

        * gthr-posix.h: Make additional pthread-* functions weak.

2001-05-14  Richard Henderson  <rth@redhat.com>

        * configure.in (gcc_cv_as_eh_frame): New test.
        * config.in, configure: Rebuild.
        * gcc.c (init_spec): Honor USE_AS_TRADITIONAL_FORMAT.

2001-05-14  Andrew MacLeod  <amacleod@redhat.com>

        * config/ia64/ia64.c (rtx_needs_barrier): Call rtx_needs_barrier
        for RETURNS as well.
        * config/ia64/lib1funcs.asm (__divtf3): Fix incorrect bits in
        extended precision divide.

2001-05-14  Andrew Haley  <aph@redhat.com>

        * reload1.c (copy_eh_notes): New function.
        (emit_input_reload_insns): Call it.
        (emit_output_reload_insns): Call it.

        * emit-rtl.c (try_split):  Copy EH notes to sequence.

2001-05-14  Richard Henderson  <rth@redhat.com>

        2001-04-12  Richard Henderson  <rth@redhat.com>
        * Makefile.in (regmove.o): Depend on except.h.
        * regmove.c: Include it.

Mon May 14 08:57:23 2001  Jeffrey A Law  (law@cygnus.com)

        * config/pa/som.h (NM_FLAGS): Remove.
        (ASM_OUTPUT_FUNCTION_PREFIX): No longer truncate subspace names.
        (ASM_OUTPUT_SECTION_NAME): Remove.
        (MAKE_DECL_ONE_ONLY, ASM_WEAKEN_LABEL): Likewise.

2001-05-14  Mark Mitchell  <mark@codesourcery.com>

        * regrename.c (regrename_optimize): Do not rename registers to
        leaf registers.

2001-05-14  Alexandre Oliva  <aoliva@redhat.com>

        * rtl.texi (CALL_INSN_FUNCTION_USAGE): Note that (and when) it may
        contain MEMs.  Remove useless distinction about clobbering
        registers.

2001-05-13  Richard Henderson  <rth@redhat.com>

        2001-03-28  Richard Henderson  <rth@redhat.com>
        * config/rs6000/rs6000.h (EPILOGUE_USES): Use TARGET_AIX,
        not TARGET_TOC for special toc restore handling.
        * config/rs6000/rs6000.md (eh_return): Likewise.

2001-05-13  Alexandre Oliva  <aoliva@redhat.com>

        * tm.texi (THREAD_MODEL_SPEC): Document it.
        * gcc.c (main): Use it.
        * config/rs6000/aix43.h (THREAD_MODEL_SPEC): Define it.
        * config/rs6000/aix51.h (THREAD_MODEL_SPEC): Likewise.

2001-05-13  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

        * rtl.h (SYMBOL_REF_WEAK): New macro.
        * rtlanal.h (rtx_addr_can_trap): Use it, a weak SYMBOL_REF can trap.
        * varasm.c (make_decl_rtl): Mark SYMBOL_REF weak if necessary.
        * rtl.texi (SYMBOL_REF_WEAK): Document it.
        * gcc.texi: Remove wrong description.

2001-05-13  Mark Mitchell  <mark@codesourcery.com>

        * stringpool.c (xxx, yyy): Remove.
        (get_identifier): Don't set them.

        * Makefile.in (STAMP): New macro.
        Replace all uses of `touch' with $(STAMP).
        * fixinc/Makefile.in: Likewise.

2001-05-13  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * i386.c (ix86_save_reg): Change `bool' parameter to `int'.

2001-05-12  Richard Henderson  <rth@redhat.com>

        EH merge from mainline, continued.

        2001-05-12  Richard Henderson  <rth@redhat.com>
        * dwarf2asm.c (size_of_encoded_value): New function.
        * dwarf2asm.h: Declare it.
        * except.c (output_function_exception_table): Align the TType
        array only as wide as the encoding.

        2001-05-11  Richard Henderson  <rth@redhat.com>
        * defaults.h (ASM_PREFERRED_EH_DATA_FORMAT): New.
        * dwarf2asm.c (dw2_force_const_mem, dw2_output_indirect_constant_1,
        dw2_output_indirect_constants, dw2_asm_output_encoded_addr_rtx): New.
        * dwarf2asm.h (dw2_asm_output_encoded_addr_rtx): Prototype.
        (dw2_output_indirect_constants): Prototype.
        * dwarf2out.c (dwarf2out_begin_prologue): Generate
        current_function_func_begin_label if we'll need it for EH.  Exit
        early for IA64_UNWIND_INFO.
        * except.c: Get DW_EH_PE_* defines from dwarf2.h.
        (eh_data_format_name): Update for indirect references.
        (output_function_exception_table): Care for IA64_UNWIND_INFO.
        Handle ASM_PREFERRED_EH_DATA_FORMAT.
        * except.h (MUST_USE_SJLJ_EXCEPTIONS): IA64_UNWIND_INFO needn't
        define HAVE_eh_return etc.
        * final.c (final_start_function): Always call dwarf2out_begin_prologue.
        (final_end_function): Don't call output_function_exception_table.
        * toplev.c (compile_file): Call dw2_output_indirect_constants.
        (rest_of_compilation): Invoke output_function_exception_table
        for ia64 before assemble_end_function.
        * tm.texi (ASM_PREFERRED_EH_DATA_FORMAT): Document.
        (ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX): Document.

        * unwind-dw2.c (_Unwind_GetTextRelBase, _Unwind_GetDataRelBase): New.
        * unwind.h: Declare them.
        * libgcc-std.ver: Export them.
        * unwind-pe.h: New file.

        * config/alpha/elf.h (ASM_PREFERRED_EH_DATA_FORMAT): New.

        * config/ia64/fde-glibc.c: Use "struct unw_table_entry"
        instead of "fde".
        (find_fde_for_dso): Extract DT_PLTGOT.
        (_Unwind_FindTableEntry): Rename from __ia64_find_fde; return
        the segment and gp as well.
        * config/ia64/frame-ia64.c: Remove file.
        * config/ia64/frame-ia64.h: Remove file.
        * config/ia64/unwind-ia64.c: New file.
        * config/ia64/unwind-ia64.h: New file.
        * config/ia64/ia64.h (ASM_OUTPUT_EH_CHAR): Remove.
        (ASM_OUTPUT_EH_SHORT, ASM_OUTPUT_EH_INT): Remove.
        (ASM_OUTPUT_EH_DOUBLE_INT): Remove.
        (ASM_PREFERRED_EH_DATA_FORMAT): New.
        (ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX): New.
        (IA64_UNWIND_INFO): Re-enable.
        (HANDLER_SECTION): Remove.
        (EH_RETURN_DATA_REGNO): New.
        * config/ia64/ia64.md (exception_receiver): Remove.
        * config/ia64/t-glibc (LIB2ADDEH): Re-enable.
        * config/ia64/t-ia64 (LIB2ADDEH): Re-enable.

        Mon May  7 09:30:14 2001  Jeffrey A Law  (law@cygnus.com)
        * except.c (sjlj_mark_call_sites): Do not search for assignments to
        non-argumment registers that are mentioned in CALL_INSN_FUNCTION_USAGE.

        2001-05-05  Richard Henderson  <rth@redhat.com>
        * except.c (remove_fixup_regions): Adjust REG_EH_REGION notes
        to the parent of the fixup region.

        2001-04-28  Jason Merrill  <jason_merrill@redhat.com>
        * except.c (expand_eh_region_start): Don't start a new block.
        (expand_eh_region_end): Don't end a block.
        * stmt.c (expand_end_bindings): Don't end EH blocks.
        (expand_decl_cleanup): Starting an EH region won't change the block.
        (mark_block_as_eh_region, mark_block_as_not_eh_region): Lose.
        (is_eh_region): Lose.
        * tree.h: Adjust.

        2001-04-27  Jeffrey Oldham  <oldham@codesourcery.com>
        * except.c (expand_eh_region_end_cleanup): word_mode, not Pmode.

        2001-04-27  Jason Merrill  <jason_merrill@redhat.com>
        * except.c (get_exception_filter): word_mode, not Pmode.

        2001-04-26  Andrew Haley  <aph@cambridge.redhat.com>
        * except.c (expand_eh_region_end_cleanup): Force pending stack
        adjust before emitting label that branches around cleanup code.

        2001-04-25  Richard Henderson  <rth@redhat.com>
        * config/i386/i386.c (ix86_expand_epilogue): Properly compute size
        of registers to restore along non eh_return path.

        2001-04-24  Jason Merrill  <jason_merrill@redhat.com>
        * except.c (reachable_handlers): Step out one level from a RESX.

        * except.c (struct eh_region): Rename 'last' to 'resume'.
        (mark_eh_region, duplicate_eh_region_1): Adjust.
        (expand_eh_region_end_cleanup): Remember the jump, not the barrier.
        (build_post_landing_pads): Likewise.
        (expand_end_catch, expand_eh_region_end_allowed): Don't set it.
        (expand_eh_region_end_must_not_throw): Likewise.
        (connect_post_landing_pads): Thread (only) regions with non-deleted
        resume insns.

        * except.c (expand_eh_region_end_cleanup): Save the EH return data
        registers around the cleanup.
        (get_exception_filter): New fn.
        (finish_eh_generation): Use it.

        2001-04-03  Richard Henderson  <rth@redhat.com>
        * rtl.h (LCT_THROW): New.
        * calls.c (emit_library_call_value_1): Handle it.
        * except.c (connect_post_landing_pads): Use it.

        2001-03-28  Richard Henderson  <rth@redhat.com>
        * except.c: Rewrite entirely for IA-64 ABI exception handling.
        * except.h: Likewise.

        * Makefile.in (LIB2ADDEH): Mention unwind-dw2*.c
        (LIB2ADDEHDEP): New.
        (LIB2FUNCS_EH): Remove.
        (LIB2ADD): Remove LIB2ADDEH.
        (libgcc.mk): Pass LIB2ADDEHDEP, don't pass LIB2FUNCS_EH.
        (LIBGCC_DEPS): Use LIB2ADDEHDEP.
        (crt{begin,end}[S].o): Likewise.
        (except.o): Update includes.
        * mklibgcc.in: Remove LIB2FUNCS_EH, add LIB2ADDEH, LIB2ADDEHDEP.
        (libgcc2_c_dep): Use LIB2ADDEHDEP.

        * basic-block.h (struct basic_block_def): Remove eh_beg, eh_end.
        * bb-reorder.c (reorder_basic_blocks): Don't disable for EH.
        * builtins.def (BUILT_IN_EH_RETURN_DATA_REGNO): New.
        * builtins.c (expand_builtin): Implement it.
        [BUILT_IN_EH_RETURN]: Update for nr arguments change.
        * c-common.c (c_common_nodes_and_builtins): Declare it.
        * c-decl.c (init_decl_processing): Update __builtin_eh_return.
        * calls.c (libfunc_nothrow): Remove.
        (emit_library_call_value_1): Don't call it.
        * crtstuff.c: Include unwind-dw2-fde.h instead of frame.h.
        * dwarf2.h (dwarf_call_frame_info): Add dwarf2.1 elements.
        (DW_EH_PE_*): New defines for pointer encoding in .eh_frame.
        * dwarf2out.c (struct dw_fde_struct): Add uses_eh_lsda, funcdef_number.
        (current_funcdef_number): Globalize.
        (output_call_frame_info): Emit frame data if an lsda is needed.
        Generate augmentation for personality routine.  Don't play with
        difference symbols.
        (dwarf2out_begin_prologue): Record funcdef_number.
        * dwarf2out.h (current_funcdef_number): Declare.
        * expr.c (expand_expr): Update for except.h name changes.
        Remove POPDCC_EXPR, POPDHC_EXPR.  Add EXC_PTR_EXPR.
        * expr.h (LTI_throw, LTI_rethrow): Remove.
        (LTI_sjthrow, LTI_sjpopnthrow, LTI_terminate): Remove.
        (LTI_eh_rtime_match): Remove.
        (LTI_unwind_resume, LTI_eh_personality): Add.
        (LTI_unwind_sjlj_register, LTI_unwind_sjlj_unregister): Add.
        * final.c (final): Don't call check_exception_handler_labels,
        init_insn_eh_region, or free_insn_eh_region.
        (final_scan_insn): Always emit debug labels for
        NOTE_INSN_EH_REGION notes.
        * flow.c (entry_exit_blocks): Remove eh_beg, eh_end.
        (record_active_eh_regions): Remove.
        (count_basic_blocks): Check all instructions for REG_EH_REGION.
        Use can_throw_internal.
        (find_basic_blocks_1): Likewise.
        (move_stray_eh_region_notes): Remove.
        (find_label_refs): No eh_return_stub_label.
        (make_edges): Likewise.  No init/free_eh_nesting_info.  Handle RESX.
        (make_eh_edge): No eh_nest_info.  Update for reachable_handlers
        changes.
        (delete_unreachable_blocks): Don't track deleted handlers.
        (flow_delete_block): Use maybe_remove_eh_handler.
        (delete_eh_regions): Remove.
        (merge_blocks): Don't check for eh region match.
        (mark_regs_live_at_end): Handle EH_RETURN_DATA_REGNO,
        EH_RETURN_STACKADJ_RTX, EH_RETURN_HANDLER_RTX.
        (init_propagate_block_info): Disable dead frame store optimization
        when current_function_calls_eh_return.
        (dump_bb): Don't print eh_beg, eh_end.
        * function.c (fixup_var_refs): No catch_clauses.
        (expand_function_end): Likewise.  Call expand_eh_return before
        the return register use.  Call sjlj_emit_function_exit_after.
        (expand_function_start): Force pseudo DECL_RESULT if sjlj exceptions.
        * function.h (struct function): Add calls_eh_return, uses_eh_lsda.
        * ifcvt.c (dead_or_predicable): Remove eh region check.
        * integrate.c (function_cannot_inline_p): Disallow __builtin_eh_return.
        Don't check for EH vs parameters.
        (expand_inline_function_eh_labelmap, eif_eh_map): Remove.
        (expand_inline_function): Call duplicate_eh_regions.
        (copy_insn_list): Don't handle NOTE_INSN_EH_REGION_BEG/END.
        (copy_insn_notes): Remap REG_EH_REGION notes.
        (copy_rtx_and_substitute): Remove SYMBOL_REF_NEED_ADJUST check.
        * jump.c (jump_optimize_1): Don't init/free_insn_eh_region, nor
        check_exception_handler_labels, nor exception_optimize.
        (find_cross_jump): No EH region check.
        * optabs.c (init_optabs): Update for changed eh libfuncs.
        * rtl.def (RESX): New.
        * rtl.h (SYMBOL_REF_NEED_ADJUST): Remove.
        * stmt.c (expand_decl_cleanup): Simplify using_eh_for_cleanups_p
        checks.  Update for except.h name changes.
        (expand_cleanups): Likewise.
        (expand_dcc_cleanup, expand_dhc_cleanup): Remove.
        * toplev.c (dump_file_index, dump_file): Add .02.eh dump.
        (compile_file): Call init_eh before init_optabs.  Don't
        output_exception_table here.
        (rest_of_compilation): Call convert_from_eh_region_ranges,
        convert_to_eh_region_ranges, output_function_exception_table.
        Don't emit_eh_context.
        * tree.def (POPDHC_EXPR, POPDCC_EXPR): Remove.
        (EXC_PTR_EXPR): New.

        * md.texi (eh_epilogue): Remove.
        (eh_return): Document.
        * tm.texi (EH_RETURN_DATA_REGNO): Document.
        (EH_RETURN_STACKADJ_RTX, EH_RETURN_HANDLER_RTX): Document.

        * eh-common.h: Remove file.
        * frame-dwarf2.c, frame.c, frame.h: Remove files.
        * libgcc2.c (L_eh): Remove.

        * unwind-dw2-fde.c: New file, largely copied from frame.c.
        * unwind-dw2-fde.h: New file.
        * unwind-dw2.c: New file, largely cribbed from frame-dwarf2.c.
        * unwind-sjlj.c, unwind.h, unwind.inc: New files.
        * libgcc-std.ver: Update for eh symbols.

        * config/alpha/alpha.c (alpha_sa_mask): Add EH_RETURN_DATA_REGNOs.
        (alpha_mark_machine_status): No eh_epilogue_sp_ofs ...
        (alpha_expand_epilogue): ... use EH_RETURN_STACKADJ_RTX instead.
        * config/alpha/alpha.h (machine_function): Remove eh_epilogue_sp_ofs.
        (EH_RETURN_DATA_REGNO): New.
        (EH_RETURN_STACKADJ_RTX, EH_RETURN_HANDLER_RTX): New.
        * config/alpha/alpha.md (eh_epilogue): Remove.
        (exception_receiver): Use $26 for ldgp input.
        * config/alpha/linux.h (MD_FALLBACK_FRAME_STATE_FOR): New.

        * config/i386/i386.c (general_no_elim_operand): Disallow virtual regs.
        (ix86_save_reg): If maybe_eh_return, true for EH_RETURN_DATA_REGNOs.
        True for pic register if current_function_calls_eh_return.
        (ix86_expand_epilogue): Change "emit_return" argument into "style".
        Handle eh_return requirements.
        * config/i386/i386.h (EH_RETURN_DATA_REGNO): New.
        (EH_RETURN_STACKADJ_RTX): New.
        * config/i386/i386.md (exception_receiver): Remove.
        (eh_return, eh_return_1): New.
        * config/i386/linux.h (MD_FALLBACK_FRAME_STATE_FOR): New.

        * config/rs6000/rs6000.c (rs6000_stack_info): Allocate space
        for eh_return data registers.
        (rs6000_emit_prologue): Save eh_return data registers.
        (rs6000_emit_epilogue): Force inline restores if eh_return.
        Restore eh_return data registers.  Mind EH_RETURN_STACKADJ_RTX.
        * config/rs6000/rs6000.h (rs6000_stack_t): Add ehrd_offset.
        (EH_RETURN_DATA_REGNO, EH_RETURN_STACKADJ_RTX): New.
        (EPILOGUE_USES): True for TOC_REGISTER if calls_eh_return and
        the target uses one.
        * config/rs6000/rs6000.md (eh_epilogue, eh_reg_restore): Remove.
        (return_eh_si, return_eh_di): Remove.
        (eh_return): New, from corpse of eh_epilogue.
        (eh_set_lr_si, eh_set_lr_di): New.

        * config/sparc/sparc.c (eligible_for_epilogue_delay): False if
        current_function_calls_eh_return.
        (output_function_epilogue): Handle eh_return.
        * config/sparc/sparc.h (DOESNT_NEED_UNWINDER): Remove.
        (EH_RETURN_DATA_REGNO): New.
        (EH_RETURN_STACKADJ_RTX): New.
        (EH_RETURN_HANDLER_RTX): New.
        * config/sparc/sparc.md (call/short branch peepholes): Check
        can_throw_internal instead of in_same_eh_region.

        2001-03-17  Richard Henderson  <rth@redhat.com>
        * dwarf2out.c (queue_reg_save): New.
        (flush_queued_reg_saves, clobbers_queued_reg_save): New.
        (dwarf2out_frame_debug_expr): Call queue_reg_save instead of
        dwarf2out_reg_save.
        (dwarf2out_frame_debug): Call flush_queued_reg_saves when needed.
        (cfa, cfa_store, cfa_temp): Make static.
        * final.c (final_scan_insn): Always call dwarf2out_frame_debug.

        2001-03-16  Richard Henderson  <rth@redhat.com>
        * dwarf2asm.c (dw2_asm_output_data): Mask data to the output size.
        (dw2_asm_output_data_uleb128): Use space not tab after .uleb128.
        (dw2_asm_output_delta_uleb128): Likewise.
        (dw2_asm_output_delta_sleb128): Similarly.
        (dw2_asm_output_data_sleb128): Similarly.  Print number in decimal.

        2001-03-15  Richard Henderson  <rth@redhat.com>
        * dwarf2asm.c (dw2_asm_output_offset): Use ASM_OUTPUT_DWARF_OFFSET
        if provided by the target.
        (dw2_asm_output_pcrel): Likewise with ASM_OUTPUT_DWARF_PCREL.
        (dw2_asm_output_addr): New.
        * dwarf2asm.h (dw2_asm_output_addr): Declare.
        * dwarf2out.c (output_cfi): Use it for program addresses.
        (output_call_frame_info, output_die): Likewise.
        (output_aranges, output_line_info): Likewise.

        2001-03-06  Krister Walfridsson  <cato@df.lth.se>
        * dwarf2asm.c (dw2_asm_output_delta): Fix smallest_mode_for_size call.

        2001-03-02  Richard Henderson  <rth@redhat.com>
        * Makefile.in (OBJS): Add dwarf2asm.o.
        * dwarf2asm.c, dwarf2asm.h: New files.
        * dwarf2out.c (*): Use them.
        (size_of_uleb128, size_of_sleb128): Remove.
        (output_uleb128, output_sleb128): Remove.
        (UNALIGNED_SHORT_ASM_OP, UNALIGNED_INT_ASM_OP): Remove.
        (UNALIGNED_DOUBLE_INT_ASM_OP, ASM_BYTE_OP): Remove.
        (UNALIGNED_OFFSET_ASM_OP, UNALIGNED_WORD_ASM_OP): Remove.
        (FDE_LABEL, LINE_NUMBER_BEGIN_LABEL, LINE_NUMBER_END_LABEL): New.
        (ASM_OUTPUT_DWARF_DATA1, ASM_OUTPUT_DWARF_DELTA1): Remove.
        (ASM_OUTPUT_DWARF_DATA2, ASM_OUTPUT_DWARF_DELTA2): Remove.
        (ASM_OUTPUT_DWARF_DATA4, ASM_OUTPUT_DWARF_DELTA4): Remove.
        (ASM_OUTPUT_DWARF_DATA, ASM_OUTPUT_DWARF_DELTA): Remove.
        (ASM_OUTPUT_DWARF_ADDR, ASM_OUTPUT_DWARF_ADDR_DATA): Remove.
        (ASM_OUTPUT_DWARF_ADDR_DELTA, ASM_OUTPUT_DWARF_ADDR_CONST): Remove.
        (ASM_OUTPUT_DWARF_OFFSET4, ASM_OUTPUT_DWARF_OFFSET): Remove.
        (ASM_OUTPUT_DWARF_CONST_DOUBLE): Remove.
        (ASM_OUTPUT_DWARF_NSTRING, ASM_OUTPUT_DWARF_STRING): Remove.
        (dwarf2out_frame_debug): Remove unused variables.
        (output_loc_operands): Don't abort on 8 byte constants if
        host integers are wide enough.
        (output_symbolic_ref): Remove.
        (size_of_die): Don't assume 4 byte host integers.
        (output_line_info): Use ASM_GENERATE_INTERNAL_LABEL for begin
        and end labels.
        (add_const_value_attribute) [CONST_INT]: Verify we're not doing
        something stupid with HOST_WIDE_INT to long truncation.
        [CONST_DOUBLE]: Likewise.

        * config/arm/conix-elf.h (UNALIGNED_WORD_ASM_OP): Remove.
        (ASM_OUTPUT_DWARF2_ADDR_CONST, ASM_OUTPUT_DWARF_ADDR_CONST): Remove.
        * config/arm/unknown-elf.h: Likewise.
        * config/rs6000/aix.h (UNALIGNED_SHORT_ASM_OP): New.
        (UNALIGNED_INT_ASM_OP, UNALIGNED_DOUBLE_INT_ASM_OP): New.
        (ASM_OUTPUT_DWARF_ADDR_VAR, ASM_OUTPUT_DWARF_DELTA_VAR): Remove.
        (ASM_OUTPUT_DWARF_DELTA2, ASM_OUTPUT_DWARF_DELTA4): Remove.
        (ASM_OUTPUT_DWARF_DELTA, ASM_OUTPUT_DWARF_ADDR_DELTA): Remove.
        (ASM_OUTPUT_DWARF_ADDR, ASM_OUTPUT_DWARF_DATA4): Remove.
        (ASM_OUTPUT_DWARF_DATA2, ASM_OUTPUT_DWARF_OFFSET4): Remove.
        (ASM_OUTPUT_DWARF_OFFSET): Remove.
        * config/rs6000/sysv4.h (ASM_OUTPUT_DWARF_ADDR): Remove.
        * config/sparc/sp64-elf.h (UNALIGNED_DOUBLE_INT_ASM_OP): New.
        (UNALIGNED_LONGLONG_ASM_OP, ASM_OUTPUT_DWARF_ADDR): Remove.
        (ASM_OUTPUT_DWARF_ADDR_CONST, ASM_OUTPUT_DWARF_REF): Remove.

        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.

2001-05-12  Richard Henderson  <rth@redhat.com>

        EH merge from mainline, parts 5 - 16.
        * regmove.c (perhaps_ends_bb_p): Use can_throw_internal to
        reduce false positives.
        (regmove_optimize): Disable if flag_non_call_exceptions.

        * stmt.c (expand_return): Remove always true predicate.
        (expand_decl_cleanup_no_eh): Remove dead code.

        * sched-deps.c (sched_analyze_insn): Consolidate scheduling
        barrier code.  Add a scheduling barrier if a non-call insn
        can throw internally.

        * rtlanal.c (rtx_addr_can_trap_p): Virtual registers cannot trap.
        Auto-inc addresses trap only if their base register does.

        * except.c (can_throw_internal): Rename from can_throw.
        * except.h, resource.c: Update references.

        * integrate.c (copy_insn_list): Use returnjump_p.
        (copy_insn_notes): Recurse for CALL_PLACEHOLDER.

        * integrate.h (struct inline_remap): Add local_return_label.
        * integrate.c (expand_inline_function): Initialize it and emit
        it after copy_insn_notes.
        (copy_insn_list): Don't store local_return_label here.
        (copy_insn_notes): New function split out from copy_insn_list.

        * function.h (struct function): Move all boolean valued fields
        to single bit fields at the end of the struct.

        * flow.c (cleanup_cfg): Take no argument.
        * output.h, sibcall.c, toplev.c: Update all calls.

        * flow.c (tidy_fallthru_edges): Don't combine complex edges.
        (calculate_global_regs_live): Kill call-clobbered registers
        across exception edges.
        * reg-stack.c (convert_regs_1): Kill the entire target stack
        across non-call exception edges.

        * flags.h (flag_new_exceptions): Remove.
        * toplev.c: Don't set it.
        * final.c: Don't check it.
        * except.c: Provide stub definition.

        * combine.c (distribute_notes) [REG_EH_REGION]: If non-call
        exceptions, put the note on the trapping instruction.

        * Makefile.in (cs-tconfig.h): Copy USING_SJLJ_EXCEPTIONS
        value to target configuration header.
        * configure.in (CONFIG_SJLJ_EXCEPTIONS): New.
        * config.in, configure: Rebuild.
        * except.h (USING_SJLJ_EXCEPTIONS): New.  Define based on
        configuration and target defines.
        (exceptions_via_longjmp): Remove.
        * dwarf2out.c, except.c, final.c, toplev.c, config/ia64/ia64.c:
        Use USING_SJLJ_EXCEPTIONS instead of exceptions_via_longjmp.

2001-05-12  Richard Henderson  <rth@redhat.com>

        2001-03-25  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
        * mkconfig.sh (DEFINES): Handle entries with '='.

        2001-03-22  Zack Weinberg  <zackw@stanford.edu>
        * mkconfig.sh: Use a subshell with redirected stdout,
        instead of closing stdout and confusing commands that run
        afterward.  Throw away output of cmp.

        2001-03-22  Richard Henderson  <rth@redhat.com>
        * mkconfig.sh: Include insn-flags.h.
        * Makefile.in (CONFIG_H): Include insn-flags.h.
        (lots of objects): Remove insn-codes.h and insn-flags.h.

        * alias.c, bb-reorder.c, calls.c, do-loop.c, flow.c, haifa-sched.c,
        integrate.c, jump.c, loop.c, predict.c, profile.c, reg-stack.c,
        regmove.c, reorg.c, a29k/a29k.c, alpha/alpha.c, arc/arc.c, arm/arm.c,
        avr/avr.c, clipper/clipper.c, convex/convex.c, d30v/d30v.c,
        dsp16xx/dsp16xx.c, fr30/fr30.c, h8300/h8300.c, i370/i370.c,
        i386/i386.c, i860/i860.c, ia64/ia64.c, m32r/m32r.c, m68hc11/m68hc11.c,
        m68k/m68k.c, m88k/m88k.c, mcore/mcore.c, mn10200/mn10200.c,
        mn10300/mn10300.c, ns32k/ns32k.c, pa/pa.c, pdp11/pdp11.c,
        pj/pj.c, romp/romp.c, rs6000/rs6000.c, sh/sh.c, sparc/sparc.c,
        v850/v850.c, vax/vax.c:
        Don't include insn-flags.h.

        * diagnostic.c, expr.h, reload.c, toplev.c:
        Don't include insn-codes.h.

        * builtins.c, combine.c, except.c, explow.c, expmed.c, expr.c,
        final.c, function.c, optabs.c, recog.c, reload1.c, stmt.c,
        c4x/c4x.c, i960/i960.c, mips/mips.c:
        Don't include insn-codes.h or insn-flags.h.

        * genemit.c, genopinit.c, genoutput.c: Don't include insn-codes.h
        or insn-flags.h in the generated code.
        * genflags.c (gen_proto): Use "struct rtx_def *" instead of "rtx".
        (main): Forward declare struct rtx_def.

        2001-03-09  Zack Weinberg  <zackw@stanford.edu>:
        * configure.in: Prune nonexistent files from build_xm_file,
        xm_file, and host_xm_file lists.  Warn unless they're
        $cpu/xm-$cpu.h.
        Don't generate *config.h here.
        AC_SUBST all variables needed to generate *config.h.
        * mkconfig.sh: New helper script, from code removed from
        configure.in.
        * Makefile.in: Substitute in variables needed to generate *config.h.
        Stop lying about the dependencies contained in CONFIG_H and
        GCONFIG_H.
        (HCONFIG_H, TCONFIG_H, TM_P_H): New variables.
        (config.h, hconfig.h, tconfig.h, tm_p.h, cs-config.h,
        cs-hconfig.h, cs-tconfig.h, cs-tm_p.h): New rules.
        (all .o): Add dependencies on $(HCONFIG_H), $(TCONFIG_H),
        $(TM_P_H), etc. as appropriate.

2001-05-12  Richard Henderson  <rth@redhat.com>

        EH merge from mainline, parts 1 - 4.
        * gthr-single.h (UNUSED): New.  Distinguish between how C
        and C++ mark unused function arguments.  Use throughout.

        * bb-reorder.c, dwarf2out.c, except.c, except.h, flow.c,
        jump.c, toplev.c:
        Rename asynchronous_exceptions to flag_non_call_exceptions.
        * except.h (flag_non_call_exceptions): Move ...
        * flags.h: ... here.

        * rtl.h (LCT_NORETURN): New.
        * calls.c (emit_library_call_value_1): Handle it.

        * function.c (expand_function_start): Set DECL_REGISTER on
        a pseudo used for DECL_RESULT.

2001-05-12  Neil Booth  <neil@cat.daikokuya.demon.co.uk>

        * cpplex.c (_cpp_lex_token): Ensure we warn at most once
        about files not ending in newlines.

2001-05-12  Alexandre Oliva  <aoliva@redhat.com>

        * defaults.h (TARGET_PTRMEMFUNC_VBIT_LOCATION): Define.
        * tm.texi (TARGET_PRTMEMFUNC_VBIT_LOCATION): Document.

2001-05-11  Richard Henderson  <rth@redhat.com>

        * config/ia64/ia64.c (group_barrier_needed_p): Don't allow
        calls and jumps to be bundled together.
        (ia64_reorg): Emit a break after a noreturn call that ends
        a function.
        * config/ia64/ia64.md (break_f): New.

2001-05-11  Jakub Jelinek  <jakub@redhat.com>

        * regmove.c (regmove_optimize): Suppress the optimization for
        unchanging destination register.  Add comment above function.

2001-05-11  Mark Mitchell  <mark@codesourcery.com>

        * loop.h (struct movables): Remove `num'.
        * loop.c (scan_loop): Don't set it.  Use count_insns_in_loop.
        Adjust call to strength_reduce.
        (num_unmoved_movables): New function.
        (move_movables): Don't set movables->num.
        (strength_reduce): Compute the number of instructions in the loop
        here, rather than in the caller.
        (check_dbra_loop): Always clear reversible_mem_store if there
        are any memory sets.
        (loop_regs_scan): Don't count instructions here.
        (count_insn_in_loop): New function.

        * optabs.c (emit_libcall_block): Don't mark calls as CONST_CALL_P.

2001-05-10  David Edelsohn  <edelsohn@gnu.org>

        * expr.c (emit_push_insn): Convert PUSH_ROUNDING argument to
        bytes.  Reported by Kazu Hirata <kazu@hxi.com>.

Thu May 10 18:23:11 2001  Jeffrey A Law  (law@cygnus.com)

        * cse.c (cse_insn): Mostly remove first hunk of code which collapsed
        a computed jump into an unconditional jump.
        In second hunk of code for collapsing computed and conditional jumps
        into unconditional jumps, reemit the jump in additional cases.

2001-05-10  David Edelsohn  <edelsohn@gnu.org>

        * expr.c (emit_group_load): extract_bit_field requires a REG or
        MEM as an argument.

2001-05-10  Toon Moene  <toon@moene.indiv.nluug.nl>

        * dwarf2out.c (mem_loc_descriptor): Do not pass constant pool
        contents for a SYMBOL_REF in case of floating point constants.

2001-05-09  Zack Weinberg  <zackw@stanford.edu>

        * cppinit.c (cpp_post_options): Shut off macro expansion if
        -fpreprocessed.
        * cpplib.c (_cpp_handle_directive): If -fpreprocessed, accept
        IN_I directives only if the # is in column 1 and the directive
        name begins in column 2.
        * cppmain.c (scan_buffer): Insert a space between # and an
        identifier, when that identifier is a directive name.

        * tradcpp.c (struct file_buf): Add a pointer to the next entry
        in the header search path.
        (enum node_type): Add T_INCLUDE_NEXT.
        (directive_table): Add entry for include_next.
        (do_include_next): New function.
        (process_include): New routine, broken out of do_include.
        (finclude): Insert 'nhd' argument, to be copied into
        next_header_dir of the new buffer.
        (main): Adjust to match.
        * gsyslimits.h, limity.h: Un-indent #include_next.

2001-05-09  Joseph S. Myers  <jsm28@cam.ac.uk>

        * objc.texi: Move from ../libobjc/objc-features.texi.  Adjust for
        inclusion as a chapter of the GCC manual.
        * gcc.texi: Include objc.texi.
        * fdl.texi: Use @unnumberedsec for the addendum.
        * Makefile.in ($(srcdir)/gcc.info, gcc.dvi): Update dependencies.

2001-05-07  John David Anglin  <dave@hiauly1.hia.nrc.ca>

        * pa.md (interspace_jump): Revise comment.
        (builtin_longjmp): Block initial setup insns from delay slot of
        interspace branch.
        (builtin_setjmp_receiver): New expander to save and restore PIC
        register.

        * som.h (NM_FLAGS): Remove `-n' sort option.  Revise comment.

2001-05-07  Mark Mitchell  <mark@codesourcery.com>

        * gcc.texi: Remove references to CHILL.
        * invoke.texi: Likewise.
        * install.texi: Likewise.

2001-05-06  Zack Weinberg  <zackw@stanford.edu>

        * Makefile.in (tradcpp0): Correct typo in dependency list.

2001-05-06  Andreas Jaeger  <aj@suse.de>

        * invoke.texi (Option Summary): Add -momit-leaf-frame-pointer
        (i386 Options): Document -momit-leaf-frame-pointer.

Sun May  6 10:54:20 2001  Jim Wilson  <wilson@redhat.com>

        * dwarf2out.c (output_line_info): Fix typo.

2001-05-05  Richard Henderson  <rth@redhat.com>

        * integrate.c (copy_insn_list): Substitute NOTE_EXPECTED_VALUE.

2001-05-05  Stephane Carrez  <Stephane.Carrez@worldnet.fr>

        * config/m68hc11/m68hc11.c (m68hc11_gen_movhi): Optimize moves
        between X and Y by using sequences of xgdx and xgdy.

2001-05-05  Stephane Carrez  <Stephane.Carrez@worldnet.fr>

        * config/m68hc11/m68hc11.md ("*logicalsi3_silshr16"): Use '?' instead
        of '!' for the 'D' alternative ('!' is too strong).
        ("*logicalsi3_silshl16"): Likewise.
        ("movstricthi"): Accept 'A' when 'd' constraint, remove spurious '+'.
        ("movstrictsi"): Remove spurious '+'.
        ("movstrictqi"): Don't accept 'A' and remove spurious '+'.
        ("tstqi_1", "*lshrqi3_const1"): Put 'm' constraint before 'd'.
        ("subqi3"): Disparage with '!' the 'x' and 'y' registers to avoid
        a reload to them.

2001-05-04  David Edelsohn  <edelsohn@gnu.org>

        * calls.c (store_one_arg): Don't divide align by BITS_PER_UNIT.

2001-05-04  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

        * config/rs6000/rs6000.md (ashldi3 splits): Guard with TARGET_POWERPC64.

2001-05-04  Stephane Carrez  <Stephane.Carrez@worldnet.fr>

        * config/m68hc11/m68hc11.md (lshrhi3_const1): Fix shift of
        soft register, use ror instead of rol.

2001-05-04  Stephane Carrez  <Stephane.Carrez@worldnet.fr>

        * config/m68hc11/m68hc11.c (m68hc11_check_z_replacement): Take
        into account pre/post increment decrement for 68HC12.
        Fix other problems in replacement and fix call to reg_mentioned_p.

2001-05-04  Stephane Carrez  <Stephane.Carrez@worldnet.fr>

        * config/m68hc11/larith.asm (L_regs_frame): New for _.frame.
        Put the soft registers in bss for 68HC12.
        (L_regs_d3_4): New for _.d3 and _.d4.
        (L_regs_d5_6): Likewise.
        (L_regs_d1_2): Likewise.
        * config/m68hc11/t-m68hc11-gas (T_CPPFLAGS): Compile new parts.

2001-05-04  Stephane Carrez  <Stephane.Carrez@worldnet.fr>

        * config/m68hc11/m68hc11.h (CPP_SPEC): Pass -D__HAVE_SHORT_DOUBLE__
        to the pre-processor when -fshort-double is specified.
        * config/m68hc11/m68hc11.2 (CPP_SPEC): Likewise.

2001-05-04  Stephane Carrez  <Stephane.Carrez@worldnet.fr>

        * config/m68hc11/larith.asm (divmodhi4): Empty for 68HC12.
        (__mulsi3): Rewrite for 68HC12.
        * config/m68hc11/m68hc11.md (divmodhi4): Use idivs for 68HC12.
        Mark 'x' constraint with earlyclobber to prevent a
        RELOAD_FOR_OTHER_ADDRESS to go in it.
        (mulhi3_m68hc12): New pattern.
        (mulhi3_m68hc11): Rename of mulhi3.
        (mulhi3): New expand for 68HC12 optimisation.
        (umulhisi3, mulhisi3): New patterns for 68HC12.

2001-05-04  Stephane Carrez  <Stephane.Carrez@worldnet.fr>

        * config/m68hc11/m68hc11.md (*tbne, *tbeq): New patterns for 68HC12.
        (extendqisi2, extendqihi2, extendhisi2): Use sex for 68HC12.
        (uminqi3, umaxqi3, uminhi3, umaxhi3): New pattern for 68HC12.

2001-05-04  Stephane Carrez  <Stephane.Carrez@worldnet.fr>

        * config/m68hc11/m68hc11.h (CONST_COSTS): Make the cost of
        constants cheap after reload.
        * config/m68hc11/m68hc11.c (m68hc11_shift_cost): Shift by 16 and 32
        are cheap.
        (m68hc11_rtx_costs): Cost of multiplication by 65536 is expensive
        so that gcc prefers a shift by 16.
        (m6811_cost, m6812_cost): Make the shift cheap compared to an add.

2001-05-04  Mark Elbrecht  <snowball3@bigfoot.com>

        * config/i386/djgpp.h (CPP_PREDEFINES): Define __GO32__.
        (CPP_SPEC): Conditionally define MSDOS and GO32.
        (SUBTARGET_SWITCHES): Ignore -mbnu210 and -mno-bnu210.
        (SUBTARGET_OVERRIDE_OPTIONS): Warn that -mbnu210 and -mno-bnu210 are
        ignored.
        (SUPPORTS_WEAK, SUPPORTS_ONE_ONLY): Remove.

2001-05-04  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * hash.c (hash_lookup): Likewise.

        * hash.h (hash_lookup): Likewise.

        * tlink.c (symbol_hash_lookup, demangled_hash_lookup): Likewise.

2001-05-03  David O'Brien  <obrien@FreeBSD.org>

        * config/t-freebsd: Don't install "assert.h" in gcc.  Compile
        crtbeginS.o and crtendS.o with PIC.

2001-05-03  Stephane Carrez  <Stephane.Carrez@worldnet.fr>

        * config/m68hc11/m68hc11.md ("bitcmpqi"): New pattern for bitb
        instruction.
        ("bitcmpqi2"): New pattern for bit-extract and test.
        ("bitcmphi"): New pattern for bitb/bita instructions.

2001-05-03  Stephane Carrez  <Stephane.Carrez@worldnet.fr>

        * config/m68hc11/m68hc11.h (STATIC_CHAIN_REGNUM): Use soft z register
        instead of _.d1.
        (INITIALIZE_TRAMPOLINE): Call it.
        (TRAMPOLINE_SIZE): Define according to 68HC11/68HC12.
        (TRAMPOLINE_TEMPLATE): Remove.
        * config/m68hc11/m68hc11.c (m68hc11_initialize_trampoline): New.
        * config/m68hc11/m68hc11-protos.h (m68hc11_initialize_trampoline):
        Declare.

2001-05-03  Joseph S. Myers  <jsm28@cam.ac.uk>

        * gccbug.in: Use a temporary directory when the mktemp command is
        not available.

2001-05-03  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/aix51.h: Remove duplicate header file inclusion as
        reported by David O'Brien <obrien@FreeBSD.org>.

2001-05-03  Mark Mitchell  <mark@codesourcery.com>

        * integrate.h (struct inline_remap): Add leaf_reg_map table.
        * integrate.c (expand_inline_function): Use xcalloc to allocate
        memory.
        (copy_rtx_and_substitute): Use the leaf_reg_map for leaf
        registers.

2001-05-02  Geoff Keating  <geoffk@redhat.com>

        * config/rs6000/rs6000.md (ctrsi_internal1, ctrsi_internal2,
        ctrsi_internal3, ctrsi_internal4, ctrsi_internal5,
        ctrsi_internal6, ctrdi_internal1, ctrdi_internal2,
        ctrdi_internal3, ctrdi_internal4, ctrdi_internal5,
        ctrdi_internal6): In the short-branch case, this insn is only 4
        bytes long.  Reported by Reza Yazdani <reza@apple.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.

2001-05-02  Dale Johannesen  <dalej@apple.com>

        * config/rs6000/rs6000.h (RS6000_ARG_SIZE): Remove unused NAMED
        parameter.
        (STRICT_ARGUMENT_NAMING): Define.
        * config/rs6000/rs6000.c (function_arg_advance, function_arg,
        function_arg_partial_nregs, setup_incoming_varargs): Remove
        args logic which depends on "named" now that STRICT_ARGUMENT_NAMING
        is defined.

Wed May  2 13:09:36 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * function.c (fixup_var_regs_1, case SUBREG): Use promoted mode
        for replacement.

        * expr.c (store_field): Do nothing except elaborate side-effects if
        zero-bit field.

2001-05-02  Nick Clifton  <nickc@cambridge.redhat.com>

        * dwarf2out.c (mem_loc_descriptor): If a SYMBOL_REF is in the
        constant pool, use the pool's SYMBOL_REF instead.

2001-05-01  Per Bothner  <per@bothner.com>

        * expr.c (expand_expr):  When compiling LABELED_BLOCK_EXPR,
        call do_pending_stack_adjust before emiting label.

2001-05-01  Mark Mitchell  <mark@codesourcery.com>

        * extend.texi: Fix typo.

2001-05-01  Stan Shebs  <shebs@apple.com>

        * objc/objc-act.c (build_module_descriptor): Clear DECL_CONTEXT
        of UOBJC_MODULES_decl.
        (generate_strings): Clear DECL_CONTEXT of new decl nodes.
        (generate_descriptor_table): Ditto.
        (generate_protocols): Ditto.
        (generate_protocol_list): Ditto.
        (generate_classref_translation_entry): Ditto.

2001-05-01  Jeffrey Oldham  <oldham@codesourcery.com>

        * ChangeLog (2001-02-21): Remove erroneous entry.
        * gcc.c (cc1_options): Add "-param".
        (DEFAULT_WORD_SWITCH_TAKES_ARG): Likewise.
        (option_map): Likewise.
        (display_help): Add "--param" to 'other' options.
        * invoke.texi (Optimize Options): Add documentation for `--param
        max-delay-slot-insn-search' and `--param
        max-delay-slot-live-search' and reorder --param section.
        * params.def: Modify initial comment.
        * params.h (param_info): Add `help' member.
        * toplev.c (lang_independent_params): Include `help' description.
        (display_help): Print --param parameters.
        (independent_decode_option): Fix typographical error.

2001-05-01  Nathan Sidwell  <nathan@codesourcery.com>

        * c-tree.texi (USING_STMT): Document.

2001-04-30  Mark Mitchell  <mark@codesourcery.com>
            Richard Henderson  <rth@redhat.com>

        * extend.texi: Improve documentation of volatile asms.

2001-04-30  Mark Mitchell  <mark@codesourcery.com>

        * c-tree.texi: Fix thinko.
        * gcc.texi: Likewise.

2001-04-30  Richard Henderson  <rth@redhat.com>

        * c-common.c (c_promoting_integer_type_p): New function, from the
        corpse of old macro.  Properly promote too-small enumerations and
        booleans.  Adjust all callers.
        * c-common.h (C_PROMOTING_INTEGER_TYPE_P): Remove.
        (c_promoting_integer_type_p): Declare.
        * c-decl.c: Adjust C_PROMOTING_INTEGER_TYPE_P invocations.
        * c-typeck.c: Likewise.
        (default_conversion): Remove now redundant boolean check.

2001-04-30  Jan Hubicka  <jh@suse.cz>
            Richard Henderson  <rth@redhat.com>

        * regmove.c (try_apply_stack_adjustment): Remove now redundant
        sanity checks.
        (combine_stack_adjustments_for_block): Don't combine stack
        allocation followed by deallocations.  Handle grow-up stacks.

2001-04-30  Mark Mitchell  <mark@codesourcery.com>

        * fdl.texi: New file.
        * c-tree.texi: Use the GFDL.
        * gcc.texi: Likewise.

2001-04-30  Stan Shebs  <shebs@apple.com>

        * invoke.texi: Add a section documenting Objective-C options.

2001-04-30  Mark Mitchell  <mark@codesourcery.com>

        * regmove.c (record_stack_memrefs): Catch all references to the
        stack pointer.

2001-04-30  John David Anglin  <dave@hiauly1.hia.nrc.ca>

        * pa.c (hppa_init_pic_save): Update last_parm_insn after emitting
        pic save insn.

2001-04-30  Mark Mitchell  <mark@codesourcery.com>

        * extend.texi (extended asm): Fix typo.

Sat Apr 28 10:32:26 2001  Jeffrey A Law  (law@cygnus.com)

        * flow.c (propagate_block_delete_insn): Handle deletion of ADDR_VEC
        and ADDR_DIFF_VEC insns when the proceeding CODE_LABEL was put
        into the constant pool.
        * jump.c (jump_optimize_1): Remove barrier successors after all
        the LABEL_NUSES counds have been computed.
        (delete_barrier_successors): When deleting a tablejump insn, also
        delete the jump table it uses.
        * varasm.c (force_const_mem): Set LABEL_PRESERVE_P when forcing a
        label into memory.

2001-04-28  Andreas Jaeger  <aj@suse.de>

        * invoke.texi: Use XX-bit instead of XXbit or XX bit where
        appropriate.
        * extend.texi: Likewise.

2001-04-28  Andreas Jaeger  <aj@suse.de>

        * md.texi: Use XX-bit instead of XXbit or XX bit where
        appropriate.

2001-04-28  Andreas Jaeger  <aj@suse.de>
            Richard Henderson  <rth@redhat.com>

        * md.texi (Machine Constraints): Fix description of "A" for
        i386.

2001-04-27  Jeffrey Oldham  <oldham@codesourcery.com>

        * collect2.c (main): Add `-L' case to remove duplicate entries.
        (is_in_args): New function to check for a duplicate argument.
        * defaults.h (LINK_ELIMINATE_DUPLICATE_LDIRECTORIES): New macro.
        * tm.texi (LINK_ELIMINATE_DUPLICATE_LDIRECTORIES): New documentation.
        * config/mips/iris6.h (LINK_ELIMINATE_DUPLICATE_LDIRECTORIES):
        Define to be nonzero.

Fri Apr 27 10:41:06 2001  Jeffrey A Law  (law@cygnus.com)

        * tm.texi (TARGET_MEM_FUNCTIONS): Update text.

2001-04-26  Geoffrey Keating  <geoffk@redhat.com>

        * config/sparc/sparc.md (movsf_no_f_insn): Add more alternatives
        common to other movsf patterns.  Move up so that in future
        people who change the other patterns will change it too.
        (movsf_lo_sum): Allow even for soft-float; add appropriate
        constraints.
        (movsf_high): Likewise.
        (movsf_high+1): Allow even for soft-float.

2001-04-26  Mark Mitchell  <mark@codesourcery.com>

        * invoke.texi: Document more C++ command-line options.

2001-04-26  H.J. Lu  (hjl@gnu.org)

        * config.gcc (mips*-*-linux*): Add elfos.h to tm_file.

        * config/mips/ecoff.h (STARTFILE_SPEC): Undefine before
        define.
        * config/mips/elf64.h (MAX_OFILE_ALIGNMENT): Likewise.
        (ASM_OUTPUT_SECTION_NAME): Likewise.
        (ASM_WEAKEN_LABEL): Likewise.
        (UNIQUE_SECTION): Likewise.
        (ASM_OUTPUT_CONSTRUCTOR): Likewise.
        (ASM_OUTPUT_DESTRUCTOR): Likewise.
        * config/mips/elf.h (MAX_OFILE_ALIGNMENT): Likewise.
        (ASM_OUTPUT_SECTION_NAME): Likewise.
        (ASM_WEAKEN_LABEL): Likewise.
        (UNIQUE_SECTION): Likewise.
        (ASM_OUTPUT_CONSTRUCTOR): Likewise.
        (ASM_OUTPUT_DESTRUCTOR): Likewise.
        * config/mips/linux.h (HANDLE_SYSV_PRAGMA): Likewise.
        * config/mips/mips.h (DBX_CONTIN_LENGTH): Likewise.
        (ASM_FILE_START): Likewise.
        (ASM_OUTPUT_SOURCE_LINE): Likewise.
        (ASM_DECLARE_OBJECT_NAME): Likewise.
        (ASM_FILE_END): Likewise.
        (ASM_DECLARE_FUNCTION_NAME): Likewise.
        (ASM_OUTPUT_INTERNAL_LABEL): Likewise.
        (ASM_GENERATE_INTERNAL_LABEL): Likewise.
        (ASM_OUTPUT_CASE_LABEL): Likewise.
        (ASM_OUTPUT_SKIP): Likewise.
        (ASM_OUTPUT_ASCII): Likewise.
        (ASM_OUTPUT_IDENT): Likewise.
        (READONLY_DATA_SECTION): Likewise.
        (EXTRA_SECTIONS): Likewise.
        (EXTRA_SECTION_FUNCTIONS): Likewise.
        (SELECT_RTX_SECTION): Likewise.
        (SELECT_SECTION): Likewise.

        * config/mips/linux.h (INVOKE__main): Undefine.
        (CTOR_LIST_BEGIN): Likewise.
        (CTOR_LIST_END): Likewise.
        (DTOR_LIST_BEGIN): Likewise.
        (DTOR_LIST_END): Likewise.
        (SET_ASM_OP): Defined it to ".dummy".
        (ASM_OUTPUT_DEF): Defined.
        (ASM_OUTPUT_DEFINE_LABEL_DIFFERENCE_SYMBOL): Defined.

2001-04-26  Nathan Sidwell <nathan@codesourcery.com>

        * c-lex.c (c_lex): Remove # from %o diagnostic formatting.

2001-04-26  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/i386.h (CC1_CPU_SPEC): Fix deprecation warnings for
        -m386 and -m486.

2001-04-26  Alexandre Oliva  <aoliva@redhat.com>

        * configure.in (configargs.h): Define thread_model.
        * configure: Rebuilt.
        * gcc.c (main): Print it with -v.

2001-04-25  Joseph S. Myers  <jsm28@cam.ac.uk>

        * invoke.texi: Document -Wmissing-braces, -dumpspecs,
        -dumpmachine, -dumpversion, -fmem-report and -ftime-report.
        * gcc.1: Regenerate.

2001-04-25  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>

        * dwarfout.c (is_pseudo_reg, type_main_variant, is_tagged_type,
        is_redundant_typedef): Use static inline instead of inline static.

Wed Apr 25 18:21:01 2001  Christopher Faylor <cgf@cygnus.com>

        * config/i386/cygwin.h: Move W32API search to LINK_SPEC to ensure that
        this directory is always searched.

2001-04-25  Jason Merrill  <jason_merrill@redhat.com>

        * loop.c (try_swap_copy_prop): Go back to checking insn.

2001-04-25  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/i386.c (ix86_expand_int_movcc): If overlap between
        out and comparison sequence has been detected, put result into
        proper temporary pseudo.

2001-04-24  Mark Mitchell  <mark@codesourcery.com>

        * dwarf2out.c (dwarf2out_finish): Forcibly return to the data
        section after emitting information.

2001-04-24  Zack Weinberg  <zackw@stanford.edu>

        * Makefile.in (LIB2FUNCS): Remove _varargs and __dummy.
        * libgcc-std.ver: Remove __builtin_saveregs, __dummy, and __empty.
        * libgcc2.c: Remove __dummy and __empty functions, and all
        code for __builtin_saveregs.
        * libgcc2.h: Don't prototype __builtin_saveregs, __dummy, or __empty.
        * config/i860/varargs.asm: New file - preserve i860 __builtin_saveregs
        for future reference.

2001-04-23  Joseph S. Myers  <jsm28@cam.ac.uk>

        * c-convert.c (convert): When converting to a BOOLEAN_TYPE, avoid
        passing nested NOP_EXPRs to fold.

2001-04-23  Mark Mitchell  <mark@codesourcery.com>

        * dwarf2out.c (rtl_for_decl_location): Add comments.  Abort
        if the decl is abstract.
        (add_bound_info): Don't try to get the location of an abstract
        declaration.

2001-04-22  Mark Mitchell  <mark@codesourcery.com>

        * loop.c (loop_delete_insns): Add prototype.

2001-04-21  Mark Mitchell  <mark@codesourcery.com>

        * flow.c (proagate_one_insn): Remove useless assignment.
        * jump.c (delete_insn): Tidy.
        * loop.c (try_copy_prop): When deleting an instruction with a
        REG_RETVAL note, delete the entire libcall sequence.
        (loop_delete_insns): New function.
        * unroll.c (initial_reg_note_copy): Copy INSN_LIST notes, even if
        we're not substituting into them yet.

2001-04-21  Kazu Hirata  <kazu@hxi.com>

        * config/h8300/h8300.c (general_operand_src): Fix a comment typo.

        * config/sparc/sparc.c (sparc_flat_eligible_for_epilogue_delay):
        Fix a comment typo.
        * config/i960/i960.c (signed_arith_operand): Likewise.

        * calls.c (expand_call): Fix a comment typo.

Fri Apr 20 12:22:15 2001  Jeffrey A Law  (law@cygnus.com)

        * config/pa/som.h (NM_FLAGS): Define.

2001-04-20  Bernd Schmidt  <bernds@redhat.com>

        * ia64.c (ia64_flag_schedule_insns2): New variable.
        (ia64_override_options): Initialize it.  Clear
        flag_schedule_insns_after_reload.
        (ia64_reorg): Only do scheduling if ia64_flag_schedule_insns2.

Thu Apr 19 19:12:57 2001  Jeffrey A Law  (law@cygnus.com)

        * config/pa/pa-linux.h (CPLUSPLUS_CPP_SPEC): Undefine.
        * config/pa/pa.h (CPLUSPLuS_CPP_SPEC): Define.

        * config/pa/som.h (ASM_OUTPUT_FUNCTION_PREFIX): Truncate subspace
        name at 32 total characters.
        (ASM_OUTPUT_SECTION_NAME): Similarly.  Also, only support placing
        functions in named sections -- data items can still go into unique
        sections, but they have normal names (ie $LIT$ and $DATA$).

        * config/pa/som.h (SUPPORTS_INIT_PRIORITY): SOM does not support
        INIT_PRIORITY.

2001-04-19  Mark Mitchell  <mark@codesourcery.com>

        * toplev.h (struct lang_hooks): Allow decode_option to indicate
        that language-independent processing should not be done.
        * toplev.c (main): Adjust accordingly.

        * rtl.texi (jump_insn): Expand on JUMP_LABEL documentation.
        * loop.c (load_mems): Handle a NULL JUMP_LABEL for a JUMP_INSN.

        * mips.md (reload_outputdi): Require that operand0 be a
        general_operand.

2001-04-19  Jakub Jelinek  <jakub@redhat.com>

        * invoke.texi (-Wshadow): Clarify.

2001-04-18  Mark Mitchell  <mark@codesourcery.com>

        * loop.c (load_mems): Examine all the instructions in the loop
        before concluding that all jumps branch to the first instruction
        after the loop.

Wed Apr 18 20:32:03 2001  Christopher Faylor <cgf@cygnus.com>

        * config/i386/xm-cygwin.h (CPP_SPEC): Fix typo.

2001-04-18  Jakub Jelinek  <jakub@redhat.com>

        * cpp.texi (-Wwhite-space): Remove.
        (-Wall): -Wall does not imply -Wwhite-space.

2001-04-17  Zack Weinberg  <zackw@stanford.edu>

        * dbxout.c (dbxout_init): If DBX_OUTPUT_GCC_MARKER is defined,
        use it instead of blindly generating a .stabs.
        * xcoffout.h: Define DBX_OUTPUT_GCC_MARKER so we put the type
        in the right place.
        * xcoffout.c: Don't bother defining default for N_CATCH.
        (UNKNOWN_STAB): Use internal_error.
        (stab_to_sclass): Remove now-unnecessary aborts.
        Remove #if 0'ed case N_BROWS.  Add #ifdef N_OPT block.

Tue Apr 17 21:39:12 2001  Jeffrey A Law  (law@cygnus.com)

        * jump.c (mark_all_labels): Canonicalize the tail recursion
        label attached to CALL_PLACEHOLDER insns.

2001-04-17  Loren J. Rittle  <ljrittle@acm.org>

        * dbxout.c (N_OPT): Define if not available from <stab.h>

2001-04-17  John David Anglin  <dave@hiauly1.hia.nrc.ca>

        * vax.h (PROMOTE_PROTOTYPES): Define for compatibility with system
        libraries and native K&R compilers.

2001-04-16  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * c-typeck.c (convert_arguments): Don't check for width changes
        with -Wtraditional.

        * invoke.texi (-Wtraditional): Update documentation.

2001-04-16  Zack Weinberg  <zackw@stanford.edu>

        * toplev.c (output_lang_identify): Delete.
        (compile_file): Don't call ASM_IDENTIFY_GCC or ASM_IDENTIFY_LANGUAGE.
        Don't generate gcc2_compiled. label.  Don't emit a nop if profiling.
        If IDENT_ASM_OP is defined, emit an .ident "GCC (GNU) <version>"
        after calling ASM_FILE_END.

        * dbxout.c (dbxout_init): Don't call ASM_IDENTIFY_GCC_AFTER_SOURCE.
        Instead, unconditionally emit an N_OPT stab with string equal
        to STABS_GCC_MARKER, which defaults to "gcc2_compiled."

        * defaults.h: Don't provide default for ASM_IDENTIFY_LANGUAGE.

        * config/dbxelf.h, config/freebsd.h, config/nextstep.h,
        config/psos.h, config/ptx4.h, config/1750a/1750a.h,
        config/alpha/alpha.h, config/alpha/elf.h, config/arc/arc.h,
        config/arm/aof.h, config/arm/coff.h, config/arm/elf.h,
        config/arm/linux-elf.h, config/avr/avr.h, config/d30v/d30v.h,
        config/dsp16xx/dsp16xx.h, config/h8300/h8300.h,
        config/i370/i370.h, config/i386/beos-elf.h,
        config/i386/osf1elf.h, config/i386/osfrose.h,
        config/ia64/sysv4.h, config/m68k/3b1.h, config/m68k/auxgas.h,
        config/m68k/crds.h, config/m68k/hp320.h, config/m68k/m68kv4.h,
        config/m68k/mot3300.h, config/m68k/news.h, config/m68k/sgs.h,
        config/m68k/tower-as.h, config/mcore/mcore-elf.h,
        config/mips/iris6.h, config/mips/osfrose.h,
        config/mips/sni-svr4.h, config/pa/som.h, config/pdp11/pdp11.h,
        config/sparc/sp64-elf.h:
        Delete definitions of any or all of: ASM_IDENTIFY_GCC,
        ASM_IDENTIFY_GCC_AFTER_SOURCE, and ASM_IDENTIFY_LANGUAGE.

        * config/elfos.h, config/freebsd.h, config/linux.h,
        config/alpha/elf.h, config/arm/linux-elf.h, config/i386/i386elf.h,
        config/i386/ptx4-i.h, config/mips/gnu.h, config/mips/linux.h,
        config/sparc/linux.h, config/sparc/linux64.h: Delete definitions
        of ASM_FILE_START which merely emit a .version directive.  Delete
        definitions of ASM_FILE_END which merely emit an .ident directive.

        * config/avr/avr.h, config/vax/vax.h: Delete definition of
        ASM_IDENTIFY_GCC and move part of its logic into
        ASM_FILE_START.

        * config/i386/att.h, config/i386/gas.h, config/i386/linux.h,
        config/sparc/linux-aout.h: Don't emit .version directive in
        ASM_FILE_START.

        * config/i386/dgux.c, config/m88k/m88k.c, config/sh/sh.c
        (output_file_start): Correct comment.

        * config/i386/osfrose.h: Don't emit trailing .ident directive.
        * config/m68k/mot3300.h: Override STABS_GCC_MARKER to "gcc2_compiled%"
        to match gdb.
        * config/pa/lib2funcs.asm: Delete gcc_compiled. label.
        * config/rs6000/aix.h: Correct comment.

        * config/i386/i386afe.h: Delete.
        * config.gcc: Remove references to i386afe.h.

        * tm.texi: Delete documentation of ASM_IDENTIFY_GCC.  The
        other macros deleted by this patch were undocumented.

Mon Apr 16 08:02:14 2001  Jeffrey A Law  (law@cygnus.com)

        * pa.md (reload_outdi): Operand 0 must be a non hard register.

        * pa.c (secondary_reload_class): SAR<->FP copies require a
        secondary register.

        * install.texi (mips-mips-bsd): Update list of functions
        required to include memmove.
        * tm.texi (TARGET_MEM_FUNCTIONS): Update list of implicitly
        used functions to include memmove.

2001-04-15  Mark Mitchell  <mark@codesourcery.com>

        * c-dump.c (dequeue_and_dump): Don't look at DECL_ASSEMBLER_NAME
        if it is not set.

2001-04-15  Jim Wilson  <wilson@redhat.com>

        * function.c (expand_function_end): Handle PARALLEL real_decl_rtl.

2001-04-13  Jim Wilson  <wilson@redhat.com>

        * config/ia64/ia64.c (ia64_expand_epilogue): Emit alloc if sibcall_p.
        (first_instruction): New static variable.
        (rtx_needs_barrier): Return 1 for alloc.
        (init_insn_group_barriers): Set first_instruction.
        (rws_sum): Delete duplicate definition.
        (group_barrier_needed_p): Return 0 when first_instruction true.
        (safe_group_barrier_needed_p): Save and restore first_instruction
        around group_barrier_needed_p call.

Fri Apr 13 21:33:59 2001  Loren J. Rittle  <ljrittle@acm.org>

        * expr.h (enum libfunc_index): Add LTI_memmove.
        (memmove_libfunc): Define macro.
        * optabs.c (init_optabs): Initialize memmove_libfunc.
        * expr.c (expand_assignment): Use memmove_libfunc instead of
        memcpy_libfunc.

2001-04-13  Alan Modra  <alan@linuxcare.com.au>

        * pa.h (GO_IF_LEGITIMATE_ADDRESS): Disallow PIC LO_SUM
        fp mode addresses.

2001-04-13  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

        * Makefile.in (CFLAGS, BOOT_CFLAGS): Partly revert 2000-10-27 patch.
        (stage1_build): Instead pass down STAGE1_CFLAGS here. Pass down
        MAKEINFO and MAKEINFOFLAGS too.
        (stage4_build): Correctly order -B flags.

2001-04-12  Jim Wilson  <wilson@redhat.com>

        * config/ia64/ia64.md (extendsfdf2, extendsftf2, extenddftf2): Simplify
        to just emit an fnorm.

2001-04-12  Mark Mitchell  <mark@codesourcery.com>

        * invoke.texi: Document --param max-gcse-memory.

2001-04-12  kaz Kojima  <kkojima@rr.iij4u.or.jp>

        * sh.md (builtin_setjmp_receiver): New expander.

2001-04-12  Kelley Cook <kelley.cook@home.com>

        * config-lang.in (lang_dirs): Add in zlib.

2001-04-11  Mark Mitchell  <mark@codesourcery.com>

        * dwarf2out.c (modified_type_die): Don't create new types here.
        * tree.h (get_qualified_type): New function.
        (build_qualified_type): Adjust comment.
        * tree.c (get_qualified_type): New function.
        (build_qualified_type): Use it.

2001-04-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * cpp.texi (-Wtraditional): Update description.

        * invoke.texi (-Wtraditional): Likewise.

2001-04-11  Jim Wilson  <wilson@redhat.com>

        * config/ia64/ia64.h (FUNCTION_ARG_BOUNDARY): Return 128 if argument
        requires more than 64 bits of alignment.

2001-04-11  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cpplib.c (do_line): Sanity check iff enable checking.

2001-04-11  Mark Mitchell  <mark@codesourcery.com>

        * Makefile.in (gcse.o): Depend on params.h.
        * gcse.c: Include params.h.
        (gcse_main): Don't do GCSE if doing so will take inordinate
        amounts of memory.
        * params.def (PARAM_MAX_GCSE_MEMORY): New  parameter.
        * params.h (MAX_GCSE_MEMORY): New macro.

2001-04-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * c-typeck.c (convert_arguments): -Wtraditional now activates
        -Wconversion warnings, except for changes in signed-ness.
        Detect complex<->int & int<->complex conversions as well.

        * invoke.texi (-Wtraditional): Document it.

Wed Apr  4 00:28:23 2001  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>

        * sparc/sol2-sld-64.h (STARTFILE_SPEC): Added missing blank.

2001-04-11  Jason Merrill  <jason_merrill@redhat.com>

        * collect2.c (is_ctor_dtor): Always use '_' in the file fn names,
        not '.' or '$'.
        * tree.c (FILE_FUNCTION_FORMAT): Likewise.
        * varasm.c (CHKR_PREFIX): Likewise.

2001-04-11  Jakub Jelinek  <jakub@redhat.com>

        * cpplex.c (_cpp_lex_token): Only warn if -Wcomment.

2001-04-09  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

        * Makefile.in (LIB2FUNCS_STATIC_EXTRA): New macro.
        (LIB2ADD_ST): New macro, pass it to mklibgcc.
        * mklibgcc.in (libgcc2_st_objs): New variable, set it from LIB2ADD_ST.
        (libgcc_st_objs): New, set from libgcc2_st_objs. Use it for libgcc.a.
        * config/rs6000/t-ppccomm (LIB2FUNCS_STATIC_EXTRA): New macro.

2001-04-09  Neil Booth  <neil@daikokuya.demon.co.uk>

        * configure.in: Add check for lstat.
        * configure, config.in: Regenerate.
        * cppinit.c (append_include_chain): Make empty path ".".
        * cpplib.c (do_line): Don't simplify #line paths.
        * cppfiles.c (remove_component_p): New function.
        (find_or_create_entry): Acknowledge stat () errors during
        path simplification.
        (handle_missing_header): Don't simplify paths.
        (_cpp_simplify_pathname): Don't simplify VMS paths.  Return
        the empty path untouched.  Don't leave a trailing '/'.

Sun Apr  8 22:50:49 2001  Christopher Faylor <cgf@cygnus.com>

        * config/i386/xm-cygwin.h (GET_ENV_PATH_LIST): Eliminate obsolete
        function.  Remove include of sys/cygwin.h.

Sun Apr  8 22:20:27 2001  Christopher Faylor <cgf@cygnus.com>

        * config/i386/cygwin.h (STARTFILE_SPEC): search */lib/w32api by default.
        (CPP_SPEC): Always search */include/w32api for header files.
        (ASM_OUTPUT_SECTION_NAME): Avoid testing NULL DECL.
        (LINK_SPEC): Add "cyg" to the library search prefixes.

2001-04-08  Philip Blundell  <philb@gnu.org>

        * config/arm/arm.h (ASM_OUTPUT_LABELREF): Use asm_fprintf.

2001-04-08  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cpperror.c (print_location): Don't special case <stdin>.
        (_cpp_begin_message): Handle WARNING_SYSHDR the same as
        WARNING, but we don't check if we're in system headers.
        * cpphash.h (enum error_type): WARNING_SYSHDR: New.
        * cpplib.c (do_warning): Warn in system headers.
        (cpp_push_buffer): Give stdin buffers the name <stdin>.

2001-04-07  Mumit Khan <khan@NanoTech.Wisc.EDU>

        * mbchar.c: Include config.h first.

2001-04-07  Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

        * c4x.h (HARD_REGNO_NREGS): HCmode mode uses 2 regs not 4.

2001-04-05  Benjamin Kosnik  <bkoz@redhat.com>

        * cppdefault.c (GPLUSPLUS_BACKWARD_INCLUDE_DIR): Add.
        * Makefile.in (-DGPLUSPLUS_BACKWARD_INCLUDE_DIR): Add.

2001-04-05  Bernd Schmidt  <bernds@redhat.com>

        * config/ia64/ia64.c (rtx_needs_barrier): PARALLELs can contain
        ASM_OPERANDS.

2001-04-05 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

        * emit-rtl.c (mark_label_nuses) Increment the label uses for
        all labels present in rtx.
        (try_split) Call new function for all split insns.

2001-04-05  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cppfiles.c (open_file): Fail directories silently, but
        with an errno of NOENT set.
        (read_include_file): Move the common exit code to the sole
        caller.  Return an int indicating success or failure.  Let
        open_file handle directories.
        (stack_include_file): If read_include_file fails,
        push a "null" buffer.

2001-04-04  Diego Novillo  <dnovillo@redhat.com>

        * simplify-rtx.c (simplify_binary_operation): Check for overflow
        when folding integer division and modulo operations.

2001-04-04  Jakub Jelinek  <jakub@redhat.com>

        * gcse.c (delete_null_pointer_checks_1): Add delete_list argument,
        push insns to delete to it instead of deleting them.
        (delete_null_pointer_checks): Delete insns from delete_list after
        all delete_null_pointer_checks_1 passes are done.

2001-04-03  Alexandre Oliva  <aoliva@redhat.com>

        * configure.in (target_subdir): Use target_alias, not target.
        * configure: Rebuilt.

        * config/sh/crtn.asm (init, fini): Restore r15 from r14, not the
        other way round.
        * config/sh/crti.asm: Fix typos in comments.

2001-04-03  Alan Modra  <alan@linuxcare.com.au>

        * dwarf2out.c (dwarf2out_frame_debug_expr): Move errant HIGH and
        LO_SUM cases to where they belong.

2001-04-02  Jakub Jelinek  <jakub@redhat.com>

        * ifcvt.c (noce_emit_move_insn): New.
        (noce_try_store_flag, noce_try_store_flag_constants,
        noce_try_store_flag_inc, noce_try_store_flag_mask,
        noce_try_cmove, noce_try_cmove_arith): Use it.
        (noce_process_if_block): Likewise.
        For STRICT_LOW_PART, take mode from its SUBREG.

2001-04-02  Jakub Jelinek  <jakub@redhat.com>

        * fold-const.c (fold): Before optimizing unsigned comparison with
        0x7fffffffU, make sure arg0 is integral type.

2001-04-02  Joseph S. Myers  <jsm28@cam.ac.uk>

        * c-tree.texi: Document representation of wide strings.

2001-03-31  Marek Michalkiewicz  <marekm@linux.org.pl>

        * config/avr/libgcc.S (__mulhi3): Correct tests to exit the loop
        when multiplier or multiplicand is zero.

2001-03-30  Bernd Schmidt  <bernds@redhat.com>

        * loop.c (load_mems): When generating a load from a pseudo, update
        REGNO_LAST_UID.

        * config/ia64/ia64.c (update_set_flags): New function, broken out of
        rtx_needs_barrier.
        (set_src_needs_barrier): Likewise.
        (rtx_needs_barrier): For SET case, use these two functions.  Rework
        PARALLEL case to handle all inputs before all outputs.
        (emit_insn_group_barriers): Call init_insn_group_barriers only if we
        saw a label and no stop bit since then.
        (maybe_rotate, process_epilogue): Add prototypes.

2001-03-28  Jim Wilson  <wilson@redhat.com>

        * config/ia64/ia64.md (movtf): Change DImode to TFmode in calls to
        operand_subword.

2001-03-28  DJ Delorie  <dj@redhat.com>

        * Makefile.in (stage1_build): Revert CFLAGS patch.

2001-03-28  John David Anglin  <dave@hiauly1.hia.nrc.ca>

        * reload1.c (eliminate_regs): Don't abort on MEM USEs.

2001-03-27  Jim Wilson  <wilson@redhat.com>

        * final.c (final_scan_insn, case NOTE_INSN_BASIC_BLOCK): Call
        IA64_UNWIND_EMIT.
        * config/ia64/ia64.c (block_num, need_copy_state): New static vars.
        (process_epilogue): New static function.
        (process_set): Call process_epilogue instead of emitting .restore
        directly.
        (process_for_unwind_directive): Handle NOTE_INSN_BASIC_BLOCK.

        * flow.c (struct reg_cond_life_info): New fields orig_condition
        and stores.
        (init_propagate_block_info): Set new fields.
        (mark_regno_cond_dead): Set and use new fields.
        (flush_reg_cond_reg_1): Likewise.
        (and_reg_cond, case AND): Check for redundant AND conditions.
        (mark_used_reg): Delete unnecessary clears before freeing splay trees.
        Set new fields.

2001-03-27  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cppmacro.c (stringify_arg): Null terminate strings.

2001-03-27  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cppfiles.c: Update comments.
        (struct include_file): Remove "defined" memeber.
        (find_or_create_entry): Make a copy of the file name, and
        simplify it.
        (open_file): Update to ensure we use the simplified filename.
        (stack_include_file): Don't set search_from.
        (cpp_included): Don't simplify the path name here.
        (find_include_file): New prototype.  Call search_from to
        get the start of the "" include chain.  Don't simplify the
        filenames here.
        (_cpp_execute_include): New prototype.  Move diagnostics to
        do_include_common.  Update.
        (_cpp_pop_file_buffer): Don't set defined.
        (search_from): New prototype.  Use the preprocessor's cwd
        for files included from the command line.
        (read_name_map): Don't simplify the pathname here.

        (stack_include_file): Only increase the include
        count if we actually process the file properly, as opposed
        to treating it as length zero.  Only call read_include_file
        if not DO_NOT_REREAD.  Handle the -H include file output
        here.
        (read_include_file): Remove now redundant DO_NOT_REREAD check.
        (cpp_included, find_include_file): Simplify pathnames after
        remapping them.  If remapping, don't use the remapped file
        name's buffer as our scratch buffer.
        (cpp_pop_file_buffer): Replace the multiple include macro
        only if it isn't yet set.
        (read_name_map): Simplify remapped names when reading in.
        (remap_filename): Move code to code path that uses it.
        (_cpp_simplify_pathname): Return the input pointer.

        (NO_INCLUDE_PATH): New macro.
        (find_include_file): Decide here which part of the include
        chain to start the search.  Complain about an empty include
        chain in all cases apart from an abolsute file name.
        (_cpp_execute_include): Don't choose the search chain here.
        Don't call handle_missing_include in the case of an empty
        include chain.
        (_cpp_compare_file_date): Don't choose the search chain here.

        (destroy_include_file_node): Rename destroy_node.
        (find_or_create_entry): New function.
        (open_file, _cpp_fake_include): Use it.
        (handle_missing_header): New function, broken out of
        _cpp_execute include.  Don't segfault if there is no
        system or quoted path.
        (_cpp_execute_include): Use handle_missing_header.

        (INCLUDE_LEN_FUDGE, ENOMEM): Delete.
        (cpp_included, find_include_file): Update.
        (search_from): Use lbasename.
        (_cpp_execute_include): Don't make a null-terminated
        copy of the filename.  Don't use CPP_PREV_BUFFER.  Don't call
        strlen or strcpy; we already know the length.
        (_cpp_compare_file_date): Similarly.

        * cpphash.h: Update comments.
        (enum include_type): New.
        (struct buffer): Delete search from.  New search_cached.
        (_cpp_execute_include): Update prototype.
        (struct cpp_reader): Delete done_initialising.
        (_cpp_simplify_pathname): Update prototype.
        (struct cpp_buffer): Delete actual_dir.  New members
        search_from and dir.
        (struct cpp_reader): Remove actual_dirs.

        (struct include_file): Update.
        (stack_include_file): Use search_from.
        (cpp_included, find_include_file): Update.
        (cpp_execute_include): Update.  ptr->name may not be
        null terminated.  Use the new search_from member variable
        of cpp_buffer.
        (_cpp_compare_file_date): Similarly.
        (search_from): New function, similiar to actual_directory.
        (actual_directory): Delete.
        (remap_filename): Update.  loc->name may not be null terminated.
        (struct file_name_list): Rename search_path.  Update.

        * cppinit.c (do_includes): Use _cpp_execute_include.
        (cpp_start_read): Don't set done_initialising.
        (struct cpp_pending): Update for renamed objects.
        (append_include_chain, remove_dup_dir, remove_dup_dirs,
        merge_include_chains, cpp_destroy, cpp_start_read): Similarly.

        * cpplib.c (do_include_common): New function.
        (do_include, do_include_next, do_import): Use it.
        (do_include_next): Move the in-main-file diagnostic
        here from _cpp_execute_include.  Behave like #include if
        we're in the main file.
        (_cpp_compare_file_date): Make else unconditional.
        (CPP_PREV_BUFFER): Delete.
        (glue_header_name): Null-terminate.
        (do_line): Don't leak memory.

        * cpplex.c (parse_string): Guarantee null-termination.
        (_cpp_equiv_toklists): Remove.

        * cpplib.h (BT_WEAK): Delete.
        (struct cpp_options): Update.

        * cppmain.c (cb_ident): Strings are now null-terminated.

        * mkdeps.c (deps_add_default_target): Use lbasename.

2001-03-27  Alan Modra  <alan@linuxcare.com.au>

        * c-typeck.c (digest_init): Fold init expression.

        * except.c (eh_regs): Save results of build_pointer_type to a temp
        as FUNCTION_VALUE macro may evaluate its args multiple times.

2001-03-26  Mark Mitchell  <mark@codesourcery.com>

        * c-common.h (DECL_NUM_STMTS): New macro.
        * c-decl.c (duplicate_decls): Copy DECL_NUM_STMTS, not
        DECL_FRAME_SIZE.
        (pushdecl): Likewise.
        * c-semantics.c (add_stmt): Update DECL_NUM_STMTS.
        * integrate.c (expand_inline_function): Don't check
        DECL_FRAME_SIZE.
        * print-tree.c (print_node): Don't print it.
        * toplev.c (rest_of_compilation): Don't try to inline when
        flag_no_inline is on.
        * tree.h (DECL_FRAME_SIZE): Remove.
        (tree_decl): Adjust accordingly.

Mon Mar 26 15:59:57 CEST 2001  Jan Hubicka  <jh@suse.cz>

        * i386.md (truncdfsf2_3, trunctfsf2_2): Change predicate to memory_operand.

2001-03-26  Jakub Jelinek  <jakub@redhat.com>

        * varasm.c (make_decl_rtl): Don't append var_labelno discriminator
        to variable names where DECL_NAME is different from
        DECL_ASSEMBLER_NAME.

2001-03-26  Jakub Jelinek  <jakub@redhat.com>

        * reg-stack.c (stack_result): Re-add 2001-03-14 changes which were
        lost during the 2001-03-14 lazy DECL_RTL commit.

2001-03-21  Jason Merrill  <jason@redhat.com>

        * collect2.c (is_ctor_dtor): Always use '_' in the file fn names,
        not '.' or '$'.
        * tree.c (FILE_FUNCTION_FORMAT): Likewise.
        * varasm.c (CHKR_PREFIX): Likewise.

2001-03-25  Kazu Hirata  <kazu@hxi.com>

        * config/h8300/h8300.md (umodqi3): Output a tab instead of a
        space.
        (modqi3): Likewise.
        (umodhi3): Likewise.
        (modhi3): Likewise.

2001-03-23  Richard Henderson  <rth@redhat.com>

        * config/mips/iris4.h (ASM_OUTPUT_ASCII): Rename local variables
        to avoid shadowing arguments.

2001-03-23  Jim Wilson  <wilson@redhat.com>

        * varasm.c (make_decl_rtl): Add TREE_PUBLIC check to abort test.
        (assemble_alias): Call make_decl_rtl.

2001-03-23  Bryce McKinlay  <bryce@albatross.co.nz>

        * extend.texi: Document the "java_interface" attribute.

2001-03-22  Gordon Sadler  <gbsadler1@lcisp.com>

        * Makefile.in (stage1_build): Pass CFLAGS to stage1_build.

2001-03-22  Zack Weinberg  <zackw@stanford.edu>

        * gcc.c, objc/lang-specs.h: Add zero initializer for cpp_spec field to
        all array elements.

2001-03-22  Brad Lucier  <lucier@math.purdue.edu>

        * Makefile.in: Have splay-tree.o depend on $(GCONFIG_H).

2001-03-22  Joseph S. Myers  <jsm28@cam.ac.uk>

        * gcc.texi: Remove more obsolete documentation of bugs and
        installation problems.

2001-03-21  Kazu Hirata  <kazu@hxi.com>

        * config/h8300/h8300.md (movsi_h8300hs): Split the 2nd alternative
        into two parts.

Wed Mar 21 14:27:11 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * cse.c (find_comparison_args): Remove previous change.
        * ifcvt.c (noce_process_if_block): When moving an insn, remove any
        REG_EQUAL notes.

        * sdbout.c: #include ggc.h.
        (sdbout_init): Move to end of file.
        Call ggc_add_tree_root for anonymous_types.
        (sdbout_symbol): Use DECL_NAME for local, not DECL_ASSEMBLER_NAME.
        (sdbout_one_type): Use DECL_NAME for field name.
        * Makefile.in (sdbout.o): Show includes ggc.h.

2001-03-21  Jakub Jelinek  <jakub@redhat.com>

        * crtstuff.c (init_dummy): Use CRT_END_INIT_DUMMY if defined.
        Remove ia32 linux PIC kludge and move it...
        * config/i386/linux.h (CRT_END_INIT_DUMMY): ...here.

2001-03-20  DJ Delorie  <dj@redhat.com>

        * Makefile.in (install-libgcc): Pass complete list of variables.
        (install-multilib): Ditto.

2001-03-20  Mark Mitchell  <mark@codesourcery.com>

        * tree.c (set_decl_assembler_name): Set DECL_ASSEMBLER_NAME for
        variables that are TREE_PUBLIC, even if not TREE_STATIC.

2001-03-19  Mark Mitchell  <mark@codesourcery.com>

        Compute DECL_ASSEMBLER_NAME lazily.
        * tree.h (DECL_ASSEMBLER_NAME): Compute it lazily.
        (DECL_ASSEMBLER_NAME_SET_P): New macro.
        (SET_DECL_ASSEMBLER_NAME): Likewise.
        (COPY_DECL_ASSEMBLER_NAME): Likewise.
        (set_decl_assembler_name): Declare.
        (lang_set_decl_assembler_name): Likewise.
        * tree.c (lang_set_decl_assembler_name): New variab.e
        (set_decl_assembler_name): New function.
        (init_obstacks): Set lang_set_decl_assembler_name.
        (build_decl): Don't set DECL_ASSEMBLER_NAME.
        * c-decl.c (duplicate_decls): Use SET_DECL_ASSEMBLER_NAME,
        COPY_DECL_ASSEMBLER_NAME, etc.  Don't set DECL_ASSEMBLER_NAME
        where it's not necessary.
        (builtin_function): Likewise.
        (finish_decl): Likewise.
        * dbxout.c (dbxout_type_methods): Likewise.
        * ggc-common.c (ggc_mark_trees): Likewise.
        * profile.c (output_func_start_profiler): Likewise.
        * varasm.c (make_decl_rtl): Likewise.

        * cse.c (find_comparison_args): Update documentation.  Fix
        mishandling of COMPARE operations.

        * tree.def (ABS_EXPR): Add documentation.
        * fold-const.c (fold): Improve folding of ABS_EXPRs.

2001-03-20  Tom Tromey  <tromey@redhat.com>

        * libgcc-std.ver: Added __fixunssfsi and __fixunsdfsi.

2001-03-20  David Billinghurst  <David.Billinghurst@riotinto.com>

        * config/i386/cygwin.h: Declare ctor_section, dtor_section
        drectve_section, switch_to_section.

        * winnt.c: Declare functions associated_type, gen_stdcall_suffix,
        i386_pe_dllexport_p, i386_pe_dllimport_p, i386_pe_mark_dllexport,
        i386_pe_mark_dllimport.

2001-03-20  David Billinghurst <David.Billinghurst@riotinto.com>

        * config/i386/cygwin.h: Include <stdio.h> Declare and constify
        functions i386_pe_*.

        * config/i386/winnt.c: Include "tm_p.h" and "toplev.h" Constify
        i386_pe_* functions with char * arguments.

2001-03-20  Alexandre Oliva  <aoliva@redhat.com>

        * config/sh/sh.md (movsf_ie): Fix output patterns for fpul load
        and store.
        (movsi_ie): Introduce fpul store.

2001-03-20  Alan Modra  <alan@linuxcare.com.au>

        * Makefile.in (OBJS): Remove hashtab.o.

2001-03-19  Tom Tromey  <tromey@redhat.com>

        * gcc.c (init_gcc_specs): Fix comment.

2001-03-19  Mark Mitchell  <mark@codesourcery.com>

        * cse.c (find_comparison_args): Update documentation.  Fix
        mishandling of COMPARE operations.

        * tree.def (ABS_EXPR): Add documentation.
        * fold-const.c (fold): Improve folding of ABS_EXPRs.

2001-03-16  Andrew Haley  <aph@cambridge.redhat.com>

        * config/ia64/libgcc-ia64.ver: Add __ia64_backtrace.

2001-03-19  Gerald Pfeifer  <pfeifer@dbai.tuwien.ac.at>

        * README.X11: Remove obsolete file.

2001-03-18  Anthony Green  <green@redhat.com>

        * config/pj/pj.h: Remove some trailing commas.
        (ASM_SPEC): Use -EB and -EL, not -mb and -ml.

2001-03-17  Anthony Green  <green@redhat.com>

        * config/pj/lib1funcs.S: Fix broken comment.
        * config/pj/pj.h (LOCAL_LABEL_PREFIX): Prefix internal
        labels with '.'.

2001-03-18  Joseph S. Myers  <jsm28@cam.ac.uk>

        * gcc.texi: Remove obsolete information relating to build and
        installation problems with enquire or the Pyramid C compiler.

2001-03-16  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.

2001-03-17  Richard Henderson  <rth@redhat.com>

        * dwarf2out.c (lookup_filename): Emit .file if the assembler
        is generating .debug_line.
        (dwarf2out_init): Add main_input_filename to the file table first.
        * configure.in (as_dwarf2_debug_line): Test with file number 1
        instead of file number 0.

        * dwarf2out.c: Revert most of 2000-11-25 and 2001-01-24 changes.
        (LN_PROLOG_AS_LABEL, LN_PROLOG_END_LABEL): New.
        (size_of_line_prolog): Remove.
        (output_line_info): Compute prologue size via label difference.
        (lookup_filename): Return "unspecified" for <internal> and <built-in>.
        * configure.in (HAVE_AS_DWARF2_DEBUG_LINE): Require that the
        assembler error when redefining file numbers.
        * config.in, configure: Rebuild.

2001-03-17  David Billinghurst  <David.Billinghurst@riotinto.com>

        * config/i386/xm-cygwin.h: Include <sys/cygwin.h.  Remove unused
        variable.

2001-03-16  Jim Wilson  <wilson@redhat.com>

        * config/ia64/ia64.c (ia64_compute_frame_size): If reg_fp is zero,
        then set it to LOC_REG (79) instead of aborting.

2001-03-16  Laurynas Biveinis  <lauras@softhome.net>

        * fixinc/Makefile.in: Set SHELL.

2001-03-16  Laurynas Biveinis  <lauras@softhome.net>

        * fixinc/fixincl.c (fix_with_system): Quote file names before
        passing them to shell.

2001-03-16  Laurynas Biveinis  <lauras@softhome.net>

        * Makefile.in: Use fix-header$(build_exeext) instead
        of fix-header.

Fri Mar 16 11:26:01 2001  Christopher Faylor <cgf@cygnus.com>

        * config/i386/cygwin.h: Revert previously misapplied patch which
        eliminated TARGET_SUBTARGET_DEFAULT.

2001-03-16  Alexandre Oliva  <aoliva@redhat.com>

        * config/sh/sh.c (sh_expand_prologue): Insns that set up the PIC
        register may be dead.

2001-03-15  Mark Mitchell  <mark@codesourcery.com>

        * dwarf2out.c (rtl_for_decl_location): Use DECL_RTL_IF_SET.

2001-03-16  Brad Lucier  <lucier@math.purdue.edu>

        * Makefile.in (hash.o): Depend on CONFIG_H.

2001-03-16  Alexandre Oliva  <aoliva@redhat.com>

        * cppfiles.c (stack_include_file): Use MAX of sysp.

2001-03-15  Steve Ellcey  <sje@cup.hp.com>

        * config.gcc (ia64*-*-hpux*): New case.
        * config/ia64/hpux.h: New file for HP-UX support.
        * config/ia64/t-hpux: New file for HP-UX support.

2001-03-16  Bruce Korb  <bkorb@gnu.org>, Alexandre Oliva  <aoliva@redhat.com>

        * fixinc/inclhack.def (irix_stdio_va_list): New.
        * fixinc/fixincl.x: Rebuilt.

2001-03-15  Bruce Korb  <bkorb@gnu.org>

        * gcc.c(main): make more rigorous
        * collect2.c(main): guard against ignoring SIGCHLD
        * protoize.c(main): ditto
        * gcc/fixinc/fixincl.c(initialize): ditto

2001-03-15  Mark Mitchell  <mark@codesourcery.com>

        * sdbout.c (sdbout_symbol): Use DECL_RTL_SET_P, SET_DECL_RTL.
        (sdbout_parms): Likewise.

Thu Mar 15 12:51:00 2001  Jeffrey A Law  (law@cygnus.com)

        * reload1.c (reload_cse_simplify_set): For LOAD_EXTEND_OP, do not
        "widen" a destination that is already wider than a word.  Also do
        not widen if LOAD_EXTEND_OP is NIL for the given mode.

2001-03-15  Zack Weinberg  <zackw@stanford.edu>

        * config/xm-lynx.h, config/xm-std32.h, config/a29k/xm-a29k.h,
        config/a29k/xm-unix.h, config/alpha/xm-alpha.h,
        config/arc/xm-arc.h, config/arm/xm-arm.h, config/c4x/xm-c4x.h,
        config/clipper/xm-clix.h, config/convex/xm-convex.h,
        config/d30v/xm-d30v.h, config/dsp16xx/xm-dsp16xx.h,
        config/elxsi/xm-elxsi.h, config/fr30/xm-fr30.h,
        config/h8300/xm-h8300.h, config/i370/xm-i370.h,
        config/i370/xm-linux.h, config/i370/xm-mvs.h,
        config/i370/xm-oe.h, config/i386/xm-aix.h,
        config/i386/xm-i386.h, config/i386/xm-osf.h,
        config/i860/xm-i860.h, config/i960/xm-i960.h,
        config/ia64/xm-ia64.h, config/m32r/xm-m32r.h,
        config/m68k/xm-m68k.h, config/m88k/xm-m88k.h,
        config/mcore/xm-mcore.h, config/mips/xm-mips.h,
        config/mn10200/xm-mn10200.h, config/mn10300/xm-mn10300.h,
        config/ns32k/xm-ns32k.h, config/pa/xm-linux.h,
        config/pa/xm-pa.h, config/pa/xm-pa64hpux.h,
        config/pa/xm-pahpux.h, config/pa/xm-papro.h,
        config/pj/xm-pj.h, config/romp/xm-romp.h,
        config/rs6000/xm-beos.h, config/rs6000/xm-rs6000.h,
        config/rs6000/xm-sysv4.h, config/sh/xm-sh.h,
        config/sparc/xm-sparc.h, config/sparc/xm-sysv4.h,
        config/v850/xm-v850.h, config/vax/xm-vax.h,
        config/vax/xm-vms.h, config/we32k/xm-we32k.h:
        Do not define TRUE or FALSE.

        * config/i386/xm-aix.h, config/i386/xm-osf.h: Delete; made
        empty by above change.
        * config.gcc: Remove references to these files.

        * configure.in: Detect stdbool.h.
        * configure, config.in: Regenerate.
        * system.h: Include stddef.h here if available.  Set
        HAVE__BOOL based on GCC_VERSION and __STDC_VERSION__.  Then
        set up a sensible boolean type at the very end.

        * combine.c, cse.c, expr.c, fold-const.c, gensupport.c,
        config/mcore/mcore.c: Rename variables named 'true'
        and/or 'false'.

        * hash.h: Delete 'boolean' typedef and related #undefs.

        * function.c, ggc-common.c, hash.h, hash.c, tlink.c,
        Replace all uses of 'boolean' with 'bool'.

2001-03-15  Neil Booth  <neil@daikokuya.demon.co.uk>
            David Billinghurst <David.Billinghurst@riotinto.com>

        * config/mips/iris5.h:  Change WCHAR_TYPE to int.

2001-03-15  Bernd Schmidt  <bernds@redhat.com>

        * simplify-rtx.c (hash_rtx): For REG and MEM, just use value of
        expression without adding in rtx code and mode.

        * alias.c (init_alias_analysis): Don't use any rtx whose value
        varies as a known value.
        Delete a superfluous test.

2001-03-15  Mark Mitchell  <mark@codesourcery.com>

        * varasm.c (assemble_variable): Use DECL_RTL_SET_P.

2001-03-14  Mark Mitchell  <mark@codesourcery.com>

        * varasm.c (assemble_alias): Use DECL_ASSEMBLER_NAME, not the
        contents of the RTL, to determine the name of the object.

2001-03-14  Laurynas Biveinis  <lauras@softhome.net>

        * configure.in: Use $gcc_cv_as instead of $as.
        * configure: Regenerated.

Wed Mar 14 13:17:44 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * alias.c (handled_component_p, can_address_p): New functions.
        (get_alias_set): Use them.

2001-03-14  Mark Mitchell  <mark@codesourcery.com>

        * expr.c (expand_expr): Revove bogus conditional.

2001-03-14  Mark Mitchell  <mark@codesourcery.com>

        * tree.h (DECL_RTL): Allocate RTL lazily.
        (SET_DECL_RTL): New macro.
        (DECL_RTL_SET_P): Likewise.
        (COPY_DECL_RTL): Likewise.
        (DECL_RTL_IF_SET): Likewise.
        * varasm.c (make_decl_rtl): Add assertions about the kind of
        declaration we are processing.
        * c-decl.c (duplicate_decls): Use COPY_DECL_RTL, DECL_RTL_SET_P, etc.
        (start_decl): Likewise.
        (finish_decl): Likewise.
        * c-semantics.c (emit_local_var): Likewise.
        * calls.c (expand_call): Likewise.
        * dbxout.c (dbxout_symbol): Likewise.
        * emit-rtl.c (unshare_all_rtl): Likewise.
        (unshare_all_decls): Likewise.
        (reset_used_decls): Likewise.
        * expr.c (store_constructor): Likewise.
        (safe_from_p): Likewise.
        (expand_expr): Likewise.
        * function.c (put_var_into_stack): Likewise.
        (instantiate_decls_1): Likewise.
        (assign_parms): Likewise.
        (expand_function_start): Likewise.
        (expand_function_end): Likewise.
        * ggc-common.c (gcc_mark_trees): Likewise.
        * integrate.c (function_cannot_inline_p): Likewise.
        (copy_decl_for_inlining): Likewise.
        (expand_inline_function): Likewise.
        (integrate_parm_decls): Likewise.
        (integrate_decl_tree): Likewise.
        * print-tree.c (print_node): Likewise.
        * reg-stack.c (stack_result): Likewise.
        * stmt.c (label_rtx): Likewise.
        (expand_return): Likewise.
        (expand_decl): Likewise.
        (expand_decl_cleanup): Likewise.
        (expand_anon_union_decl): Likewise.
        * toplev.c (check_global_declarations): Likewise.
        (rest_of_decl_compilation): Likewise.
        * tree.c (simple_cst_equal): Likewise.
        * objc/objc-act.c (generate_static_references): Likewise.

2001-03-14  Jakub Jelinek  <jakub@redhat.com>

        * reg-stack.c (stack_result): Unconditionally use
        FUNCTION_OUTGOING_VALUE resp. FUNCTION_VALUE.

2001-03-13  Jim Wilson  <wilson@redhat.com>

        * config/ia64/ia64.c (find_gr_spill): Subtract frame_pointer_needed
        from 80 in try_locals code.
        (ia64_expand_prologue): Add comment pointing to find_gr_spill change.

2001-03-13  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * cpp.texi (poison): Explain the macro expansion exception.

2001-03-12  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cppinternals.texi: Update for file handling.

Mon Mar 12 14:05:32 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * flow.c (insn_dead_p): Don't consider two memrefs equivalent
        unless anti_dependence says they are.
        * alias.c (objects_must_conflict): If neither has a type specified,
        they must conflict.

2001-03-12  Aldy Hernandez  <aldyh@redhat.com>

        * reload1.c (reload_cse_simplify): Call reload_cse_simplify_set
        before reload_cse_noop_set_p.

Sat Mar 10 23:21:34 2001  kaz Kojima <kkojima@rr.iij4u.or.jp>

        * config/sh/sh.h (LEGITIMATE_PIC_OPERAND_P): Defined.

Sat Mar 10 23:16:16 2001  Toshiyasu Morita  <toshiyasu.morita@hsa.hitachi.com>

        * config/sh/sh.md (umulhisi3_i, mulhisi3_i): Fix mnemonics.
        * config/sh/lib1funcs.asm (mulsi3): Convert mulu to mulu.w.

Sat Mar 10 23:03:25 2001  Alexandre Oliva  <aoliva@redhat.com>

        * tree.c (build_common_tree_nodes_2): Don't copy va_list_type_node
        if it's a record type.

Sat Mar 10 17:52:54 2001  Christopher Faylor <cgf@cygnus.com>

        * config/i386/cygwin.h: Make ../w32api a system directory.  Reorganize
        mingw includes slightly.

Fri Mar  9 18:33:50 2001  Jeffrey A Law  (law@cygnus.com)

        * pa.md (builtin_longjmp): Rework slightly to work for PA64 too.

2001-03-09  Nicola Pero <n.pero@mi.flashnet.it>

        * configure: Rebuilt.
        * configure.in: Only use `lang_requires' for languages athat are
        actually enabled.

Thu Mar  8 23:34:42 2001  Jeffrey A Law  (law@cygnus.com)

        * config/pa/som.h (MAKE_DECL_ONE_ONLY, ASM_WEAKEN_LABEL): Disable.

Thu Mar  8 23:22:26 2001  John Wehle  (john@feith.com)

        * rtlanal.c (rtx_varies_p): Check operand 0 of a
        LO_SUM unless for_alias is set.

2001-03-08  Bruce Korb  <bkorb@gnu.org>

        gcc.c(main): ensure SIGCHLD handling is set to SIG_DFL so that
        wait4() can receive the signal.

Thu Mar  8 21:09:10 2001  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>

        * fixinc/inclhack.def (AAB_dgux_int_varargs): Don't use HTML
        entities.
        * fixinc/fixincl.x: Regenerate.

Thu Mar  8 21:09:10 2001  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>

        * fixinc/inclhack.def (AAA_standards): Undo <standards.h> breakage
        on Tru64 UNIX.
        * fixinc/fixincl.x: Regenerate.

Thu Mar  8 19:42:08 CET 2001  Jan Hubicka  <jh@suse.cz>

        * reg-stack.c (move_for_stack_reg): Avoid non-popint fst for
        TFmode too.

Thu Mar  8 06:32:50 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * config/i386/i386.md (clrstrsi): Call ix86_set_move_mem_attrs.

2001-03-08  Alexandre Oliva  <aoliva@redhat.com>

        * configure.in (enable_shared): Support per-package shared-library
        enabling.
        * configure: Rebuilt.

2001-03-07  David Edelsohn  <edelsohn@gnu.org>

        * rs6000.md (cr logic): Add original POWER mnemonic alternative
        for crnot.  Set operands[5] in splitter.

2001-03-07  Tom Tromey  <tromey@redhat.com>

        * configure: Rebuilt.
        * configure.in: Allow config-lang.in to set `lang_requires' to list
        of other required languages.

2001-03-07  Richard Henderson  <rth@redhat.com>

        * config/alpha/alpha.md (call_osf_1_noreturn): New pattern.

2001-03-07  Laurynas Biveinis  <lauras@softhome.net>

        * fixinc/inclhack.def (djgpp_wchar_h): New test.
        * fixinc/fixincl.x: Regenerated.

2001-03-06  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * Restore change that patch misapplied.
        * 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.

2001-03-06  Stephen L Moshier  <moshier@mediaone.net>

        * config/m68k/m68k.c (const_uint32_operand): Accept any
        const_int on a 32-bit host.

2001-03-06  Zack Weinberg  <zackw@stanford.edu>

        * c-parse.in (yylexname): New function, split out of _yylex.
        (objc_rid_sans_at): New table.
        (init_reswords): Initialize it.
        (_yylex): Give labels clearer names.  Handle CPP_ATSIGN by
        retrieving the next token and checking it for significance as
        an ObjC keyword or string constant.

        * cpplex.c (_cpp_lex_token): Just return CPP_ATSIGN for '@'.
        * cpplib.h (TTYPE_TABLE): Add CPP_ATSIGN, drop CPP_OSTRING.

        * c-lex.c, c-parse.in, cppmacro.c, cpplex.c: Remove references
        to CPP_OSTRING.

2001-03-06  Nicola Pero  <n.pero@mi.flashnet.it>

        * objc/objc-act.c (init_objc): Set save_lang_status,
        restore_lang_status, and mark_lang_status.

2001-03-06  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cppinternals.texi: Update.

2001-03-05  Brad Lucier  <lucier@math.purdue.edu>

        * invoke.texi: Document __FAST_MATH__.

2001-03-04  John David Anglin  <dave@hiauly1.hia.nrc.ca>

        * function.c (purge_addressof_1): Change type of function
        purge_addressof_1 from boolean to int.  Change local variable
        `result' to int, and false and true to 0 and 1, respectively.

2001-03-04  Stephane Carrez  <Stephane.Carrez@worldnet.fr>

        * config/m68hc11/larith.asm (__mulqi3): Fix multiplication of two
        negative numbers.
        (___subdi3, ___adddi3): Use x instead of y as index register.
        (__init_bss_section, __map_data_section): Optimize for 68HC12.
        (__memset, __memcpy): Likewise.
        (regs): Put the soft registers in bss for 68HC12.
        (abort): Use trap to abort for 68hc12.
        (__mulhi3, __mulhi32): Use emul for 68hc12.
        (__mulsi3): Avoid to use the tmp soft register for 68hc12.

2001-03-04  Stephane Carrez  <Stephane.Carrez@worldnet.fr>

        * config/m68hc11/m68hc11.h (LIMIT_RELOAD_CLASS): Don't define.
        * config/m68hc11/m68hc11-protos.h (limit_reload_class): Remove.
        * config/m68hc11/m68hc11.c (limit_reload_class): Remove.
        (m68hc11_override_options): Remove setting of flag_no_nonansi_builtin.
        Set 68HC12 min offset to -65536.
        (print_operand): Put parenthesis arround the operand if it refers
        to a symbol having the same name as a register.
        (m68hc11_z_replacement): When z register is replaced by its
        equivalent soft register, force the insn to be re-recognized.
        (m68hc11_check_z_replacement): Fix the test when destination is
        the index register and z dies in the insn.
        (m68hc11_reorg): Remove the REG_DEAD notes beforce recomputing them.

2001-03-04  Stephane Carrez  <Stephane.Carrez@worldnet.fr>

        * config/m68hc11/m68hc11.c (m68hc11_override_options): Initialize
        costs according to processor variant.
        (m68hc11_shift_cost): New function to compute shift costs.
        (m68hc11_rtx_costs): Define costs according to processor variant.
        (m6811_cost): Costs for 68HC11.
        (m6812_cost): Costs for 68HC12.
        (COSTS_N_INSNS): Remove.

        * config/m68hc11/m68hc11.h (RTX_COSTS): New.
        (DEFAULT_RTX_COSTS): Remove.
        (CONST_COSTS): Define costs according to OUTER_CODE.
        (processor_costs): New struct to define costs.
        (m68hc11_cost): Pointer to current costs.

2001-03-04  Stephane Carrez  <Stephane.Carrez@worldnet.fr>

        * config/m68hc11/m68hc11.md (*addhi3_68hc12): Fix generation
        and use m68hc11_notice_keep_cc when using leax/leay.
        (addhi3 split): Reject split if the insn is handled by
        leax/leay above.
        * config/m68hc11/m68hc11.c (m68hc11_split_move): For 68HC12 the
        push must be handled in a special way if the source operand uses
        sp as index register.
        (m68hc11_notice_keep_cc): New function.
        (m68hc11_gen_movhi): Use it when an insn changes a register but
        not the flags.
        (m68hc11_gen_movqi): Fix move for 68HC12.
        * config/m68hc11/m68hc11-protos.h (m68hc11_notice_keep_cc): Declare.

2001-03-04  Stephane Carrez  <Stephane.Carrez@worldnet.fr>

        * config/m68hc11/m68hc11.c (m68hc11_emit_libcall): Use LCT_CONST
        and don't pass operands[0] to emit_library_call_value.

2001-03-04  Stephane Carrez  <Stephane.Carrez@worldnet.fr>

        * config/m68hc11/m68hc11.md (tsthi_1): Use cpd for 68HC12.
        (zero_extendsi split): Simplify and use (zero_extendhi).
        (*addhi3): Remove 'w' constraint since stack pointer is handled
        by (addhi3_sp).
        (*ashlhi3_2): Operand 2 is clobbered use '+' for its constraint.
        (*ashlhi3, *ashrhi3, *lshrhi3): Likewise.
        (*ashrhi3_const): Fix shift by 7.
        (*lshrsi3_const16): Fix template.
        (call, call_value): Fix constraint and predicate.

2001-03-04  Stephane Carrez  <Stephane.Carrez@worldnet.fr>

        * config/m68hc11/m68hc11.md (X_REGNUM, D_REGNUM): New constant.
        (Y_REGNUM, SP_REGNUM, PC_REGNUM, A_REGNUM, B_REGNUM): Likewise.
        (CC_REGNUM): Likewise.
        (*unnamed splits): Use above constants instead of hard coded numbers.
        (*adcq, *subcq, *addsi_carry, *rotlqi3_with_carry): Likewise.
        (*rotlhi3_with_carry, *rotrhi3_with_carry): Likewise.
        (*return_16bit, *unnamed peepholes): Likewise.

2001-03-03  Laurynas Biveinis  <lauras@softhome.net>

        * gcc.c (convert_filename): Append executable suffix
        if NO_AUTO_EXE_SUFFIX is not defined.
        * gcc.texi: Document NO_AUTO_EXE_SUFFIX.
        * config/i386/djgpp.h: Define NO_AUTO_EXE_SUFFIX.


2001-03-03  David O'Brien  <obrien@FreeBSD.org>

        from 2000-09-06  Zack Weinberg  <zack@wolery.cumb.org>
        * c-parse.gperf, c-gperf.h: Delete.
        (c-gperf.h was accidently re-added to the CVS repo in the rev 1.16 commit
         by tromey)

2001-03-03  John David Anglin  <dave@hiauly1.hia.nrc.ca>

        * fixinc/fixlib.h (t_bool): Add identifier `t_bool' in typedef.
        * fixinc/server.c (read_pipe_timeout): Use enum t_bool instead of
        t_bool in declaration because pcc can't combine volatile with typedef
        types.

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

        * longlong.h (umul_ppmm): Don't use a multiline string.

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

        * cpplex.c (_cpp_lex_token): Don't warn about directives in
        macro arguments when looking for the '('.
        * cppmacro.c (funlike_invocation_p): Set parsing_args to
        2 when really parsing arguments; 1 when looking for '('.
        Always restore the lexer position.

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

        * cpplex.c (parse_string): Unconditionally pedwarn.

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

        * cpp.texi: Update.
        * cppexp.c (parse_number): Update.
        * cpplex.c (parse_string): Pedwarn if multiline string does not
        result from a system header's macro.
        * cpplib.h (sys_objmacro_p): Rename sys_macro_p.
        * cppmacro.c (sys_objmacro_p): Rename sys_macro_p.  Return true
        for function-like macros too.

2001-03-02  John David Anglin  <dave@hiauly1.hia.nrc.ca>

        * print-rtl.c (print_rtx): Cast enums to int for comparison.
        * c-decl.c (grokdeclarator): Cast enums to int for comparison and
        shifts.
        * c-format.c (C_STD_VER): Cast to int for comparisons.
        (check_function_format): Cast various enums to int for &.
        (maybe_read_dollar_number): Likewise.
        (check_format_info): Likewise.
        (check_format_info_main): Likewise.
        * expr.c (emit_move_insn_1): Cast enums to unsigned int for comparison.
        (safe_from_p): Likewise.
        * varasm.c (const_hash): Cast enum to int for %.
        * emit-rtl.c (init_emit_once): Use int loop variable to work around
        pcc enum problems with < and ++ operators.
        * regclass.c (init_reg_sets_1): Cast enums for comparison.
        (choose_hard_reg_mode): Use unsigned int to iterate over CCmodes.
        (regclass_init): Change enum class to int to iterate over reg_classes.
        * genrecog.c (merge_trees): Cast enums for comparison.
        * rtl.h (GET_CODE): Cast to enum rtx_code.
        (PUT_CODE): Cast to ENUM_BITFIELD(rtx_code).
        (GET_MODE): Cast to enum machine_mode.
        (PUT_MODE): Cast to ENUM_BITFIELD(machine_mode).
        (GET_NOTE_INSN_NAME): Cast enum to int.
        * tree.h (TREE_CODE): Cast to enum tree_code.
        (TREE_SET_CODE): Cast VALUE to ENUM_BITFIELD(tree_code).
        * simplify-rtx.c (hash_rtx): Cast enums to unsigned unt.
        * timevar.c (timevar_print): Change loop variable id from enum to
        unsigned int.
        * fixinc/fixincl.c (VLEVEL): Cast enums in comparison to unsigned int.
        * config/i386/i386.md: Use PUT_MODE for mode assignment.
        * toplev.c (compile_file): Cast enum DFI to int.
        (decode_d_option): Likewise.

Fri Mar  2 12:18:13 2001  Christopher Faylor <cgf@cygnus.com>

        * cppinit.c (append_include_chain): Mark "after" include file name list
        as a system directory.
        * cpp.texi: Document new behavior.

2001-03-01  Zack Weinberg  <zackw@stanford.edu>

        * cpphash.h (struct cpp_reader): Add print_version field.
        * cppinit.c (cpp_handle_option): For -v, -version, and --version,
        just set print_version and other flags as appropriate.
        (cpp_post_options): Print version here if print_version is set.

        * toplev.c (exit_after_options): New flag.
        (independent_decode_option): Don't exit here; just set
        exit_after_options.
        (main): Exit after calling lang_hooks.post_options if
        exit_after_options is true.

        * cppinit.c (append_include_chain): Drop never-used case QUOTE.
        (merge_include_chains): Adjust comment to match code.

2001-03-01  Zack Weinberg  <zackw@stanford.edu>

        * stringpool.c (set_identifier): New function.
        * tree.h: Prototype it.

        * c-parse.in: Kill D_YES. If compiled for objc, call
        save_and_forget_protocol_qualifiers from init_reswords.
        * objc/objc-act.c (remember_protocol_qualifiers,
        forget_protocol_qualifiers): Don't diddle C_IS_RESERVED_WORD.
        Swap out the non-keyword IDENTIFIER_NODEs for keyword ones, or
        vice versa.
        (save_and_forget_protocol_qualifiers): New function.
        * c-lex.h: Prototype save_and_forget_protocol_qualifiers.

2001-03-01  John David Anglin  <dave@hiauly1.hia.nrc.ca>

        * cpplib.c (_cpp_init_stacks): Cast enum for comparison.
        * cppexp.c (lex): Cast enums for comparison.
        * cppinit.c (parse_option): Cast enum for comparison.
        * cpplex.c (cpp_spell_token): Cast enums to int for minus.
        (cpp_output_token): Likewise.
        (cpp_can_paste): Cast enums for comparsion and plus/minus.
        (cpp_avoid_paste): Cast enums for minus and comparison.

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.

2001-02-21  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.

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

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

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.

Thu Mar  1 09:44:15 2001  Jeffrey A Law  (law@cygnus.com)

        * config/pa/som.h  (ASM_IDENTIFY_GCC): Define.
        (ASM_IDENTIFY_GCC_AFTER_SOURCE): Likewise.

        * pa.c (emit_move_sequence): Verify operand0 is a hard register
        before determining its register class.

2001-03-01  Bernd Schmidt  <bernds@redhat.com>

        * config/ia64/ia64.c (ia64_hard_regno_rename_ok): Disallow renaming
        from reg 4 if current_function_calls_setjmp.
        (ia64_sched_reorder): Move code that rotates bundles up a bit.

        * reload1.c (eliminate_regs_in_insn): Restrict the special case
        code not to try to optimize adds with anything but a REG destination.

        * sched-int.h (struct haifa_insn_data): Add new member priority_known.
        (INSN_PRIORITY_KNOWN): New accessor macro.
        * haifa-sched.c (priority): Use it instead of testing priority against
        zero.

2001-02-28  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.
        * cppinit.c (set_lang):  Move builtin handling to...
        (init_builtins): ...here.
        (_cpp_create_reader): Move call to set_lang.
        * 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.
        * 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.

2001-02-28  Nathan Sidwell  <nathan@codesourcery.com>

        * extend.texi (Deprecated Features): Deprecate float and
        complex template constant parms.

Tue Feb 27 16:45:00 2001  Jeffrey A Law  (law@cygnus.com)

        * pa.c (override_options): Promote -fpic to -fPIC.
        (legitimize_pic_address): Simplify due to removal of
        small PIC as a code generation option.
        (secondary_reload_class): Similarly.
        * pa.h (GO_IF_LEGITIMATE_ADDRESS): Similarly.
        (PRINT_OPERAND_ADDRESS): Similarly.
        * pa.md (various patterns): Similarly.
        (small pic lo_sum pattern): Remove.

2001-02-27  Andreas Jaeger  <aj@suse.de>

        * configure.in: Document that --disable-checking is default.
        * configure: Regenerated.

2001-02-27  Mark Mitchell  <mark@codesourcery.com>

        * configure.in: Make --disable-checking the default.
        * configure: Regenerated.

2001-02-26  Mark Mitchell  <mark@codesourcery.com>

        Revert the two previous changes.

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.

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  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>

        * 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.

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  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  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

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.

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

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

Wed Feb 21 19:16:26 CET 2001  Jan Hubicka  <jh@suse.cz>

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

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.

2001-02-20  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  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.

Mon Feb 19 20:24:50 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: Update version number to 3.0.
        * cpp.1, gcov.1, gcc.1: Regenerate.

2001-02-19  Richard Henderson  <rth@redhat.com>

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

Mon Feb 19 10:11:53 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 16:46:56 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 16:40:45 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 16:20:04 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.

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

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

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 17:03:06 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>

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

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

        * 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  Richard Henderson  <rth@redhat.com>

        * 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.

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.

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

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

2001-02-17  Joseph S. Myers  <jsm28@cam.ac.uk>

        * gcc.texi, invoke.texi: Link to GCC 3.0 version of
        c99status.html.

2001-02-16  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.

2001-02-16  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  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.

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  Gerald Pfeifer  <pfeifer@dbai.tuwien.ac.at>

        * version.c: Bump to "3.0 20010215 (prerelease)".

Thu Feb 15 15:15:29 2001  Alexandre Oliva  <aoliva@redhat.com>

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

Thu Feb 15 00:20:31 CET 2001  Jan Hubicka  <jh@suse.cz>

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

        * invoke.texi (-mreg-alloc): Deprecate.

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

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

Wed Feb 14 23:35:57 CET 2001  Jan Hubicka  <jh@suse.cz>

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

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

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

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

        * regclass.c (init_reg_sets_1): Revert last change.

2001-02-14  Nathan Sidwell  <nathan@codesourcery.com>

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

2001-02-14  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.

2001-02-13  Zack Weinberg  <zack@wolery.stanford.edu>

        * 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.

Wed Feb 14 01:03:14 CET 2001  Jan Hubicka  <jh@suse.cz>

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

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

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

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

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

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.

2001-02-12  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.