[gcc.git] / gcc / ChangeLog

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 21:40:28 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  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * Makefile.in (reg-stack.o): Depend on reload.h.
        (insn-attrtab.o): Depend on flags.h.

        * genattrtab (main): Include flags.h in insn-attrtab.c.

        * reg-stack.c: Include reload.h.

        * sparc.h (flag_pic): Delete redundant declaration.

        * output.h (flag_pic): Likewise.

        * tree.h (pedantic): Likewise.

2001-04-13  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * Makefile.in (toplev.o, jump.o, regmove.o): Depend on reload.h

        * jump.c, regmove.c, toplev.c: Include reload.h.

        * reload.h (reload_cse_regs): Declare.

        * rtl.h (find_equiv_reg, operands_match_p, safe_from_earlyclobber,
        reload_cse_regs, init_reload, mark_home_live, reload,
        init_caller_save): Delete redundant prototypes.

2001-04-13  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * Makefile.in (ssa.o, regclass.o): Depend on $(EXPR_H).

        * regclass.c, ssa.c: Include expr.h.

        * rtl.h (memory_address, force_reg, emit_queue, emit_move_insn,
        gen_move_insn): Delete redundant declarations.

2001-04-13  Alan Modra  <amodra@one.net.au>

        * pa.c (hppa_init_pic_save): Set rtx_unchanging for
        PIC_OFFSET_TABLE_SAVE_RTX.
        (zdepi_cint_p): Describe zdepi insn.
        Formatting and white space fixes throughout file.

        * pa.c (uint32_operand): Don't use long constant >= 2^32.
        (emit_move_sequence): Use HOST_WIDE_INT constants.  Don't worry
        about 32->64 bit sign extension if 32 bit HOST_WIDE_INTs.
        (compute_movstrsi_length): Make `align' unsigned to avoid warning.
        (output_64bit_and): Use plain `int's for shift counts.
        (output_64bit_ior): Likewise.
        (function_arg_partial_nregs): Use unsigned vars to avoid warnings.
        * pa.h (CONST_OK_FOR_LETTER_P): Use HOST_WIDE_INT constants for case
        `N', and simplify.

        * pa-hpux10.h (NEW_HP_ASSEMBLER): Define to 1.
        * pa-hpux11.h (NEW_HP_ASSEMBLER): Likewise.
        * pa.h (LEGITIMATE_CONSTANT_P) Collapse two defines depending on
        NEW_HP_ASSEMBLER into one.  Kill warnings.

        * pa-gas.h: Delete file.
        * config.gcc: Match `parisc' as well as `hppa' for cpu_type=pa.
        Add new targets hppa*64*-*-linux* and parisc*64*-*-linux*.  Update
        hppa*-*-linux*.  For all pa targets, remove pa/gas.h from tm_file,
        instead setting MASK_GAS | MASK_JUMP_IN_DELAY in target_cpu_default2.

        * config/pa/mill32.S: New file.
        * config/pa/mill64.S: New file.
        * config/pa/t-linux (LIBGCC1, CROSS_LIBGCC1, LIB1ASMFUNCS,
        LIB1ASMSRC, CRTSTUFF_T_CFLAGS_S, TARGET_LIBGCC2_CFLAGS): Define.
        * config/pa/t-linux64: New file.
        * config/pa/t-pa64 (CROSS_LIBGCC1): Change to libgcc1-asm.a
        (LIB1ASMFUNCS, LIB1ASMSRC): Define.
        (TARGET_LIBGCC2_CFLAGS): Add -Dpa64=1 -DELF=1.

        * elfos.h (SELECT_SECTION): Undef before defining.
        * pa-linux.h (LINUX_DEFAULT_ELF, PTRDIFF_TYPE, CPP_SPEC): Remove.
        (LIB_SPEC): Remove -lmilli.
        (DBX_REGISTER_NUMBER): Remove.
        (PREFERRED_DEBUGGING_TYPE, DWARF2_ASM_LINE_DEBUG_INFO,
        (DWARF2_UNWIND_INFO, ASM_SPEC, LINK_SPEC, FUNCTION_OK_FOR_SIBCALL,
        NO_PROFILE_COUNTERS, SELECT_RTX_SECTION, INCOMING_RETURN_ADDR_RTX,
        DWARF_FRAME_RETURN_COLUMN, STRING_ASM_OP, TEXT_SECTION_ASM_OP,
        DATA_SECTION_ASM_OP, BSS_SECTION_ASM_OP, ASM_FILE_START,
        ASM_OUTPUT_DEF, ASM_OUTPUT_ADDR_VEC_ELT, ASM_OUTPUT_ADDR_DIFF_ELT,
        ASM_OUTPUT_LABEL, ASM_GLOBALIZE_LABEL, ASM_DECLARE_FUNCTION_NAME,
        TARGET_GAS): Define.
        * pa.c (output_arg_descriptor): Disable for TARGET_ELF32.
        (function_arg): If TARGET_ELF32, pass fp args in both general and fp
        regs if we don't have a prototype.
        * pa.md (canonicalize_funcptr_for_compare): Not for TARGET_ELF32.
        * pa.h (TARGET_ELF32): Default to 0 if undefined.
        (EH_RETURN_DATA_REGNO, EH_RETURN_STACKADJ_RTX,
        EH_RETURN_HANDLER_RTX): Define.
        * pa32-regs.h (DBX_REGISTER_NUMBER): Remove unnecessary test.
        (DWARF_FRAME_REGNUM): Define.
        * pa64-regs.h (DWARF_FRAME_REGNUM): Define.
        * pa32-linux.h: New file.
        * pa64-linux.h: New file.

        * pa-64.h (WCHAR_TYPE, WCHAR_TYPE_SIZE): Define.
        (ASM_OUTPUT_DOUBLE_INT): Format, protect macro with do..while.
        (LINK_SPEC, LIB_SPEC, MD_EXEC_PREFIX, MD_STARTFILE_PREFIX,
        NEW_HP_ASSEMBLER, ASM_FILE_START, OBJECT_FORMAT_ELF,
        DWARF2_DEBUGGING_INFO, PREFERRED_DEBUGGING_FORMAT,
        DWARF2_ASM_LINE_DEBUG_INFO, USE_CONST_SECTION, CONST_SECTION_ASM_OP,
        CTORS_SECTION_ASM_OP, DTORS_SECTION_ASM_OP, INIT_SECTION_ASM_OP,
        FINI_SECTION_ASM_OP, EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS,
        READONLY_DATA_SECTION, CONST_SECTION_FUNCTION, CTORS_SECTION_FUNCTION,
        DTORS_SECTION_FUNCTION, ASM_OUTPUT_SECTION_NAME, MAKE_DECL_ONE_ONLY,
        UNIQUE_SECTION_P, UNIQUE_SECTION, INT_ASM_OP, ASM_OUTPUT_CONSTRUCTOR,
        ASM_OUTPUT_DESTRUCTOR, TYPE_ASM_OP, SIZE_ASM_OP, ASM_WEAKEN_LABEL,
        TYPE_OPERAND_FMT, ASM_DECLARE_RESULT): Move to..
        * pa64-hpux.h: New file.
        (ASM_FILE_START): Correct typo.
        (PREFERRED_DEBUGGING_FORMAT): Rename to PREFERRED_DEBUGGING_TYPE.
        * config.gcc: Modify for above.

Fri Apr 13 00:09:22 EDT 2001  John Wehle  (john@feith.com)

        * jump.c (jump_optimize_1): Don't delete dead stores here.
        * toplev.c (rest_of_compilation): Call delete_trivially_dead_insns
        prior to running jump optimize before cse2.

2001-04-12  Stan Shebs  <shebs@apple.com>

        * objc/objc-act.c: Remove all code ifdefed with the never-used
        macro OBJC_INT_SELECTORS.
        * config/d30v/d30v.h: Remove commented-out ref to OBJC_INT_SELECTORS.
        * tm.texi: Remove doc for OBJC_INT_SELECTORS.

Thu Apr 12 18:13:37 2001  Rodney Brown  <RodneyBrown@mynd.com>

        * config/pa/quadlib.c: Add prototypes.

2001-04-12  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * bitmap.h (debug_bitmap): Delete redundant prototype.

        * rtl.h (get_frame_size): Likewise.

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

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

2001-04-12  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * c-common.h (truthvalue_conversion, type_for_mode,
        type_for_size): Delete redundant declarations.

        * c-lex.h (is_class_name): Likewise.

        * c-tree.h (pedantic, convert, getdecls, gettags,
        global_bindings_p, init_decl_processing, insert_block,
        maybe_build_cleanup, poplevel, print_lang_decl,
        print_lang_identifier, print_lang_type, pushdecl, pushlevel,
        set_block, incomplete_type_error, build_function_call,
        lvalue_or_else, mark_addressable): Likewise.

        * expr.h (expand_tree_builtin): Likewise.

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

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

2001-04-12  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * configure.in (errno): Check for declaration.
        * configure, config.in: Regenerated.

        * system.h (errno): Only declare if not already done.

2001-04-12  Alexandre Oliva  <aoliva@redhat.com>

        * recog.c (general_operand, immediate_operand,
        nonmemory_operand): Require CONST_INTs to be sign-extended
        values for their modes.

2001-04-12  Alexandre Oliva  <aoliva@redhat.com>

        * expmed.c (store_bit_field): Truncate CONST_INTs.
        (expand_mult_highpart, expand_divmod): Likewise.
        * expr.c (convert_modes, store_field): Likewise.
        * integrate.c (expand_inline_function): Use promote_mode() to
        determine whether to convert_modes() an argument as signed
        or unsigned.
        * optabs.c (expand_binop): Get CONST_INT operands
        sign-extended for their appropriate modes.
        * stmt.c (emit_case_nodes): Convert node values to the
        appropriate mode.
        (expand_end_case): Convert minval and range to the appropriate
        mode.
        * unroll.c (loop_iterations): Truncate abs_diff to the mode of
        the iteration variable.
        * varasm.c (immed_double_const): Don't require words to be
        narrower than host wide ints to properly sign-extend
        CONST_INTs.

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

        * sh.md (builtin_setjmp_receiver): New expander.

2001-04-12  David Edelsohn  <dje@watson.ibm.com>

        * config/rs6000/rs6000.c (rs6000_emit_move): Do not
        special-case HOST_BITS_PER_WIDE_INT != 32.  Use same criteria
        for generating CONST_INT and CONST_DOUBLE.

2001-04-12  Alexandre Oliva  <aoliva@redhat.com>

        * config/rs6000/rs6000.c (logical_operand): CONST_INTs are
        already sign-extended.
        (rs6000_emit_prologue): Make register iterator signed.
        (rs6000_emit_epilogue): Likewise.
        * config/rs6000/rs6000.md (addsi3, adddi3): Sign-extend high
        and low.
        (movsf split, movdf split): Sign-extend CONST_INTs.
        (movdi splits): Likewise.

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

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

2001-04-11  Alexandre Oliva  <aoliva@redhat.com>

        * config/i386/i386.md: Apply trunc_int_for_mode() to GEN_INT
        operands that make it to RTL.

2001-04-11  Stan Shebs  <shebs@apple.com>

        Add Darwin (Mac OS X kernel) native support.
        * config.gcc (powerpc-*-darwin*): Add native bits.
        * config/darwin.c: New file, generic Darwin support functions.
        * config/darwin.h: New file, generic Darwin definitions.
        * config/darwin-protos.h: New file, generic Darwin prototypes.
        * rs6000/darwin.h: New file, Darwin for PowerPC.
        * rs6000/t-darwin: New file, Darwin makefile fragment.
        * rs6000/rs6000.h (OBJECT_MACHO): New macro.
        (TARGET_MACHO): Ditto.
        (rs6000_abi): Add ABI_DARWIN.
        (RS6000_REG_SAVE): Add ABI_DARWIN case.
        (RS6000_SAVE_AREA): Ditto.
        (FP_ARG_MAX_REG): Ditto.
        (RETURN_ADDRESS_OFFSET): Ditto.
        * rs6000/rs6000.c (rs6000_legitimize_address): Add TARGET_MACHO
        cases.
        (rs6000_emit_move): Add ABI_DARWIN cases.
        (print_operand): Ditto.
        (first_reg_to_save): Ditto.
        (rs6000_stack_info): Ditto, also align stack by 16 instead of 8.
        (debug_stack_info): Ditto.
        (rs6000_emit_prologue): Ditto.
        (rs6000_emit_epilogue): Ditto.
        (output_profiler_hook): Ditto.
        (output_function_profiler): Ditto.
        (rs6000_add_gc_roots): Call machopic_add_gc_roots if TARGET_MACHO.
        (output_mi_thunk): Add TARGET_MACHO case.
        (add_compiler_stub): Ditto.
        (output_compiler_stub): Ditto.
        (no_previous_def): Ditto.
        (output_call): Ditto.
        (machopic_output_stub): Ditto.
        (rs6000_machopic_legitimize_pic_address): Ditto.
        (toc_section): Ditto.
        * rs6000/rs6000.md (addsi3_high): New TARGET_MACHO pattern.
        (macho_high): Ditto.
        (macho_low): Ditto.
        (movsi_low): Ditto.
        (load_macho_picbase): Ditto.
        (call): Add TARGET_MACHO case to modify function.
        (call_value): Ditto.
        (call_nonlocal_sysv): Add ABI_DARWIN case.
        (call_value_nonlocal_sysv): Ditto.
        * rs6000/rs6000-protos.h (rs6000_machopic_legitimize_pic_address):
        Add prototype.
        (machopic_output_stub): Ditto.
        * ginclude/stddef.h: Test _BSD_WCHAR_T_DEFINED_.

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  Richard Henderson  <rth@redhat.com>

        * Makefile.in (insn-recog.o): Depend on toplev.h.
        (insn-emit.o, doloop.o): Likewise.
        * genrecog.c, genemit.c: Include toplev.h in generated file.
        * doloop.c: Include toplev.h.

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>

        * Makefile.in (insn-output.o): Depend on $(EXPR_H).

        * genoutput.c (output_prologue): Include expr.h in insn-output.c.

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

        * output.h (assemble_real): Declare if REAL_VALUE_TYPE is defined.

        * real.h (ereal_atof, real_value_truncate, target_isnan,
        target_isinf, target_negative, assemble_real, debug_real): Delete
        redundant prototypes.

        * Makefile.in (ifcvt.o): Depend on toplev.h.

        * c-semantics.c: Include expr.h.

        * ifcvt.c: Include toplev.h.

        * expr.h (rtx_equal_p): Delete prototype.

        * rtl.h (exact_log2_wide, floor_log2_wide, permalloc,
        protect_from_queue, gen_jump, gen_beq, gen_bge, gen_ble,
        eliminate_constant_term, expand_complex_abs, find_single_use,
        make_tree, init_expr_once, init_optabs, supports_one_only):
        Likewise.
        
        * tree.h (exact_log2_wide, floor_log2_wide, expand_null_return,
        rest_of_type_compilation, emit_queue, do_pending_stack_adjust,
        expand_assignment, store_expr, emit_line_note_after,
        emit_line_note_force, split_specs_attrs, label_rtx): Likewise.
        
        * toplev.h (exact_log2_wide, floor_log2_wide): Add prototype.

        * sparc-protos.h: Delete redundant prototypes.

2001-04-11  Vladimir Makarov  <vmakarov@toke.toronto.redhat.com>

        * reload.c (push_reload): Add condition missed in SUBREG byte
        offset patch.

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

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

Wed Apr 11 14:06:10 CEST 2001  Jan Hubicka  <jh@suse.cz>

        * i386.md (floatsisf_sse): Fix output template
        * i386.c (ix86_expand_fp_movcc)

        * reg-stack.c (emit_pop_insn): Handle complex modes.
        (move_for_stack_reg): Emit proper move mode.
        (subst_stack_regs_pat): Handle complex modes.

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

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

2001-04-10  Richard Henderson  <rth@redhat.com>

        * libgcc2.h (__terminate_func_ptr): Remove typedef.
        (__pure_virtual, __terminate, __terminate_set_func,
        __default_terminate, __throw_type_match, __empty,
        __get_eh_context, __get_eh_info, __get_dynamic_handler_chain,
        __eh_rtime_match, __unwinding_cleanup, __rethrow,
        __sjthrow, __sjpopnthrow, __eh_alloc, __eh_free):
        Remove prototypes of deleted functions.

2001-04-10  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.

Tue Apr 10 17:45:50 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * gcse.c (update_ld_motion_stores): Don't use variable I for an insn.
        * flow.c (set_block_for_new_insns): Remove needless cast and
        properly check for unset block number.

2001-04-10  Andrew MacLeod  <amacleod@redhat.com>

        * function.c (purge_single_hard_subreg_set): Only check REGNO if 
        the subreg was a hard register. Pseudos are left as subregs.

2001-04-29  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  Bo Thorsen  <bo@suse.co.uk>

        * config/i386/i386.md: "TARGET_64BIT && TARGET_64BIT": Removed one.

2001-04-09  Andrew MacLeod  <amacleod@redhat.com>

        * output.h (set_block_num): Missed it earlier, remove deprecated 
        prototype.

2001-04-09  Andrew MacLeod  <amacleod@redhat.com>

        * gcse.c (oprs_unchanged_p): Pass basic_block to load_killed_in_block_p.
        (load_killed_in_block_p): Change bb parameter from int to basic_block.
        (oprs_not_set_p): Pass basic_blocks instead of ints as parameters.
        (handle_rd_kill_set): Change bb parameter from int to basic_block.
        (compute_kill_rd): Pass basic_blocks instead of ints as parameters.
        (expr_killed_p): Change bb parameter from int to basic_block, pass 
        basic_blocks instead of ints as parameters.
        (compute_ae_kill): Pass basic_blocks instead of ints as parameters.
        (expr_reaches_here_p_work, expr_reaches_here_p): Change bb parameter 
        from int to basic_block, pass basic_blocks instead of ints as parms.
        (pre_expr_reaches_here_p_work, pre_expr_reaches_here_p): Change bb 
        parameter from int to basic_block, pass basic_blocks instead of ints.
        (process_insert_insn): Pass basic_blocks instead of ints as parameters.
        (insert_insn_end_bb): Change bb parameter from int to basic_block, 
        pass basic_blocks instead of ints.
        (pre_edge_insert, pre_insert_copy_insn, pre_insert_copies): Pass 
        basic_blocks instead of ints as parameters.
        (pre_delete): Pass basic_blocks instead of ints as parameters.
        (hoist_expr_reaches_here_p): Change bb parameter from int to 
        basic_block, pass basic_blocks instead of ints.
        (hoist_code): Pass basic_blocks instead of ints as parameters.
        (reg_set_info, store_ops_ok, store_killed_after, store_killed_before): 
        Change bb parameter from int to basic_block.
        (build_store_vectors): Pass basic_blocks instead of ints as parameters.
        (insert_insn_start_bb): Change bb parameter from int to basic_block, 
        pass basic_blocks instead of ints.
        (insert_store): Pass basic_blocks instead of ints as parameters.
        (replace_store_insn, delete_store): Change bb parameter from int to 
        basic_block, pass basic_blocks instead of ints.
        (store_motion): Pass basic_blocks instead of ints as parameters.

2001-04-09  Andrew MacLeod  <amacleod@redhat.com>

        * basic-block.h (set_new_block_for_insns): New Prototype.
        (set_block_num): Delete prototype.
        * flow.c (set_block_num): Remove obsolete function.
        (set_block_for_new_insns): Set BB for single or multiple insns.
        * gcse.c (handle_avail_expr): Use set_block_for_new_insns.
        (process_insn_end_bb): Use set_block_for_new_insns or 
        set_block_for_insn instead of set_block_num.
        (pre_insert_copy_insn): Use set_block_for_new_insns.
        (update_ld_motion_stores): Use set_block_for_new_insns.
        (insert_insn_start_bb): Use set_block_for_new_insns.
        (replace_store_insn): Use set_block_for_new_insns.

2001-04-09  Andrew MacLeod  <amacleod@redhat.com>
            Jeff Law  <law@redhat.com>

        * alias.c (get_addr): Externalize.
        (canon_true_dependence): New function. Behaves like true_dependance
        except it already assumes a MEM has been canonicalized.
        * flags.h (flag_gcse_lm, flag_gcse_sm): New optimization flags.
        * gcse.c (struct ls_expr): Add load/store expressions structure.
        (modify_mem_list, canon_modify_mem_list): New variable.
        (gcse_main): Initialize & finalize alias analysis. Use enhanced 
        load motion and store motion if requested.
        (alloc_gcse_mem): Allocate space for modify_mem_list array.
        (free_gcse_mem): Free the modify_mem_list array.
        (oprs_unchanged_p): Use load_killed_in_block_p.
        (gcse_mems_conflict_p, gcse_mem_operand): New variables.
        (mems_conflict_for_gcse_p): New function.  Don't kill loads 
        with stores to themselves if its in the load/store expression list.
        (load_killed_in_block_p): New function.
        (canon_list_insert): New Function.
        (record_last_mem_set_info): Keep a list of all instructions which
        can modify memory for each basic block.
        (compute_hash_table, reset_opr_set_tables): Clear modify_mem_list.
        (oprs_not_set_p): Use load_killed_in_block_p.
        (mark_call, mark_set, mark_clobber): Use record_last_mem_set_info.
        (expr_killed_p): Use load_killed_in_block_p.
        (compute_transp): Do not pessimize memory references.
        (pre_edge_insert): Update stores for a load motion expression.
        (one_pre_gcse_pass): Check loads/stores for extra load motion.
        (ldst_entry): Find or create a ldst_expr structure.
        (free_ldst_entry): Free memory for an individual item.
        (free_ldst_mems): Free entire load/store expression list.
        (print_ldst_list): Print debug info.
        (find_rtx_in_ldst): Try to find an rtx expression in the ldst list.
        (enumerate_ldsts): Assign integer values to each entry in list.
        (first_ls_expr): First expression in the list.
        (next_ls_expr): Next expression in the list.
        (simple_mem): Check if expression qualifies for ld/st expression list.
        (invalidate_any_buried_refs): Remove from expression list if its
        used in some other way we dont understand.
        (compute_ld_motion_mems): Find all potential enhanced load motion
        expression.
        (trim_ld_motion_mems): Remove any expressions which are invalid.
        (update_ld_motion_stores): Copy store values to registers for loads
        which have been moved.
        (regvec, st_antloc, num_store): New global statics.
        (reg_set_info): Marks registers as set.
        (store_ops_ok): Verfies registers expressions are valid in a block.
        (find_moveable_store): Look for moveable stores in a pattern.
        (compute_store_table): Find stores in a function worth moving, maybe.
        (load_kills_store): Check dependance of a load and store.
        (find_loads): Find any loads in a pattern.
        (store_killed_in_insn): Check if a store is killed in an insn.
        (store_killed_after): Check is store killed after an insn in a block.
        (store_killed_before): Check is store killed before an insn in a block.
        (build_store_vectors): Generate the antic and avail vectors.
        (insert_insn_start_bb): Insert at the start of a BB, update BLOCK_HEAD.
        (insert_store): Add a store to an edge.
        (replace_store_insn): Replace a store with a SET insn.
        (delete_store): Delete a store insn.
        (free_store_memory): Free memory.
        (store_motion): Perform store motion.
        * invoke.texi: Add documentation for -fcse-lm and -fgcse-sm.
        * rtl.h (get_addr, canon_true_dependence): Add prototypes.
        * toplev.c (flag_gcse_lm, flag_gcse_sm): New Variables.
        (f_options): Add gcse-lm and gcse-sm.

Mon Apr  9 16:18:03 CEST 2001  Jan Hubicka  <jh@suse.cz>

        * i386.c (expand_fp_movcc): Fix condition reversal code.

        * i386.c (ix86_register_move_cost): Fix handling of reformating penalty
        * i386.h (INTEGER_CLASS_P, MAYBE_INTEGER_CLASS_P): New.
        (CLASS_MAX_NREGS): Use it.

        * i386.h (HARD_REGNO_NREGS): Handle properly TF and TCmodes on 64bit;
        handle properly complex values.
        (CLASS_MAX_NREGS): Likewise; update comment.

2001-04-05  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.

Mon Apr  9 15:09:13 CEST 2001  Jan Hubicka  <jh@suse.cz>

        * i386.md (truncdfsf2_*): Add i387->int/sse reg alternatives;
        Do not require source to match destination anymore;
        Add abort to the nontrivial cases that should be handled by split.
        (fix_trunc?fdi): Add SSE case for x86_64.
        (floatdi?f): Likewise.
        (floatdi?f_sse): New.
        (fix_trunc?fdi_sse): New.

2001-04-09  Richard Sandiford   <rsandifo@redhat.com>

        * dwarfout.c (DEBUG_ARANGES_BEGIN_LABEL): New label.
        (DEBUG_ARANGES_END_LABEL): Ditto.
        (dwarfout_init): Generate length and version fields at the start
        of the .debug_aranges info.  Insert DEBUG_ARANGES_BEGIN_LABEL
        after the length field.
        (dwarfout_finish): Insert DEBUG_ARANGED_END_LABEL at the end of
        the .debug_aranges info.

Sun Apr  8 00:43:27 CEST 2001  Jan Hubicka  <jh@suse.cz>

        * i386.c (call, call_value): Make sure that resulting call_insn
        does have proper second operand.

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.
        * cpplib.h (enum error_type): WARNING_SYSHDR: New.
        * cpplib.c (do_warning): Warn in system headers.

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

        * mbchar.c: Include config.h first.

2001-04-07  Zack Weinberg  <zackw@stanford.edu>

        * config.gcc: Set default for xmake_file at top, not bottom.
        Change places that set xmake_file to "none" to set to the
        empty string instead, or remove them entirely if there is no
        default xmake_file for this cpu_type.  Remove references to
        deleted files.

        * config/x-lynx, config/convex/x-convex, config/elxsi/x-elxsi,
        config/i386/x-isc, config/i386/x-isc3, config/i386/x-ncr3000,
        config/i386/x-next, config/i386/x-sco, config/i386/x-sysv3,
        config/i386/x-vsta, config/i860/x-sysv4, config/m68k/x-amix,
        config/m68k/x-apollo68, config/m68k/x-ccur, config/m68k/x-crds,
        config/m68k/x-hp2bsd, config/m68k/x-mot3300, config/m68k/x-mot3300-gas,
        config/m68k/x-tower, config/m88k/x-sysv4, config/mips/x-dec-osf1,
        config/mips/x-sni-svr4, config/mips/x-ultrix, config/romp/x-mach,
        config/romp/x-romp, config/rs6000/x-beos, config/rs6000/x-lynx,
        config/rs6000/x-mach, config/rs6000/x-sysv4, config/sparc/x-sysv4:
        Delete.

        * config/a29k/x-unix, config/i386/x-aix, config/i386/x-osf1elf,
        config/i386/x-osfrose, config/m68k/x-dpx2, config/mips/x-iris3,
        config/mips/x-mips, config/mips/x-osfrose, config/mips/x-sony,
        config/mips/x-sysv, config/rs6000/x-aix31:
        Just set CLIB to -lld or -lmld, as appropriate.

        * config/arm/x-riscix, config/i370/x-oe, config/i386/x-dgux,
        config/i386/x-sco4, config/i386/x-sco5, config/m68k/x-hp320,
        config/m68k/x-hp320g, config/m68k/x-next, config/m88k/x-dgux,
        config/mips/x-iris, config/pa/x-pa:
        Just set (some of) FIXPROTO_DEFINES, STMP_FIXPROTO,
        OTHER_FIXINCLUDES_DIRS.

        * config/i386/x-djgpp: Don't set LN or LN_S.
        * config/m88k/x-dolph: Don't define __m88k__.
        * config/m88k/x-tekXD88: Don't set AR_FLAGS.
        * config/pa/x-pa-mpeix: Just set up quadlib.asm.
        * config/i860/fx2800.h: No need to #undef SVR4.

        38 x-host fragments remain, 2 x-cpu.

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.

2001-04-06  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cpplib.c (cpp_push_buffer): Give stdin buffers the name <stdin>.

2001-04-06  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 '/'.

2001-04-06  Benjamin Kosnik  <bkoz@redhat.com>

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

2001-04-06  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.

2001-04-05  DJ Delorie  <dj@redhat.com>

        * function.h (virtuals_instantiated): Declare.
        * function.c: (virtuals_instantiated): Make global.
        * calls.c (emit_library_call_value_1): Use
        virtual_outgoing_args_rtx only if it hasn't been instantiated.
        Otherwise, use the stack pointer directly.

Thu Apr  5 19:13:33 CEST 2001  Jan Hubicka  <jh@suse.cz>

        * i386.c (x86_initialize_trampoline): New global function.
        * i386.h (TRAMPOLINE_SIZE): Size is 23 for x86_64.
        (INITIALIZE_TRAMPOLINE): Move offline.
        * i386-protos.h (x86_initialize_trampoline): Declare.

Thu Apr  5 19:02:15 CEST 2001  Jan Hubicka  <jh@suse.cz>

        * i386.md (movdi_1_rex64): Allow SSE->SSE reg move.
        (lea_0): Rename to lea_1.
        (lea_1_zext, lea_1_rex64, lea_2_rex64): New patterns.
        (lea_general_?): Allow SImodes on TARGET_64BIT
        (lea_general_?_zext): New patterns.
        (call_1, call_1_rex64): Fix.

Thu Apr  5 19:00:15 CEST 2001  Jan Hubicka  <jh@suse.cz>

        * i386.c (ix86_split_long_move): Use PUT_MODE instead of change_address.

Thu Apr  5 18:25:56 CEST 2001  Jan Hubicka  <jh@suse.cz>

        * i386.c (function_arg): Return constm1_rtx for last argument.
        (ix86_expand_prologue): Update gen_call calls.
        * i386.h (FUNCTION_BLOCK_PROFILER_EXIT): Likewise.
        * i386.md (call_pop): Likewise.
        (call): Second operand is VOIDmode.
        (call_0): Likewise; Support 64bits.
        (call_exp): New expander.
        (call_1): Get to the sync.
        (call_1_exp): New pattern.
        (call_value): Support 64bit.
        (call_value_exp): New pattern.
        (untyped_call): Update gen_call call.
        (call_value_pop): Disable for 64bit.
        (call_value_0_rex64): New pattern.
        (call_value_1_rex64): Likewise.

2001-04-05  Bo Thorsen  <bo@suse.de>

        * i386.md: Don't allow "builtin_setjmp_receiver" for TARGET_64BIT.

Thu Apr  5 13:44:17 2001  J"orn Rennecke <amylaar@redhat.com>

        * i386.md (*andsi_1+3): If used after reload, make sure the operand
        satisfies ANY_QI_REG_P.

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

        * config/ia64/ia64.c (rtx_needs_barrier): A PARALLEL can contain
        ASM_OPERAND.

        * sched-deps.c (sched_analyze_insn): Revert more of the March 27
        change.

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

        * config.gcc: Remove default for xm_file.  Clean up local
        machine type handling.  Remove settings of xm_file to
        something that doesn't exist.  In the big switch, set xm_file,
        don't append to it (the value before the big switch is always
        null).  Don't force build_xm_file or host_xm_file to have a value.
        * configure.in: Remove default for xm_file.  Do not special
        case $cpu/xm-$cpu.h not existing.
        * configure: Regenerate.

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  Andrew MacLeod  <amacleod@redhat.com>

        * dwarf2out.c (output_cfi): Add 'for_eh' parameter, use PTR_SIZE
        instead of DWARF2_ADDR_SIZE for EH addresses.
        (output_call_frame_info): Use PTR_SIZE instead of DWARF2_ADDR_SIZE for
        EH addresses.

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

        * config/ia64/ia64.h (IA64_UNWIND_INFO): Disable.
        * config/ia64/t-glibc (LIB2ADDEH): Disable.
        * config/ia64/t-ia64 (LIB2ADDEH): Disable.

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

        * configure.in (gcc_cv_as_leb128): Escape "." in regexp.
        * configure: Rebuilt.

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.

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

        * configure.in (gcc_cv_as_leb128): Tweek minor number extraction.
        * configure: Rebuilt.

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

        * expr.h: Remove #ifdef FUNCTION_CONVERSION_BUG logic.
        * config/romp/xm-romp.h: Delete.

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

        * sched-deps.c (sched_analyze_insn): Partially revert March 27
        change.

2001-04-04 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.

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

        * recog.c (validate_replace_rtx_1): Instead of aborting just make
        sure the change won't be validated.

Wed Apr  4 00:45:38 EDT 2001  John Wehle  (john@feith.com)

        * rtl.h (set_noop_p): Declare.
        * flow.c (set_noop_p): Move from here ...
        * rtlanal.c (set_noop_p): ... to here and enhance.
        * cse.c (delete_trivially_dead_insns): Use it.
        * gcse.c (hash_scan_set): Likewise.
        * jump.c (delete_noop_moves): Likewise.
        * recog.c (split_all_insns): Likewise.

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

        * dwarf2out.c (dwarf2out_frame_debug_expr): Support adjusting
        stack pointer via a LO_SUM.  Ditto for setting a temp register
        used to save to the stack.  Set cfa_temp when setting fp, and
        allow matches to cfa_temp in addition to cfa_store when saving
        regs.  Handle POST_INC and LO_SUM register stores.  Document the
        changes and errors in rule 12 doco.

        * pa.c (set_reg_plus_d, store_reg, load_reg): Return last insn.
        (actual_fsize, local_fsize, save_fregs): Move for store_reg to see.
        (load_reg): Move closer to epilogue code.
        (DO_FRAME_NOTES): Define to control the following..
        (FRP): Define to set RTX_FRAME_RELATED_P on insns.
        (hppa_expand_prologue): Use FRP and REG_FRAME_RELATED_EXPR
        notes as necessary.
        (hppa_expand_epilogue): Likewise.

2001-04-03  Richard Henderson  <rth@redhat.com>

        * configure.in (gcc_cv_as_leb128): Reject gas before 2.11.
        * configure: Rebuild.

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.

2001-04-03  Zack Weinberg  <zackw@stanford.edu>

        * gansidecl.h: Delete file.
        * configure.in: Change all refs to gansidecl.h to use
        ansidecl.h.  Adjust *_file_list so they know where ansidecl.h
        lives.
        * configure: Regenerate.

        * Makefile.in (intl.o): Don't depend on gansidecl.h.
        * defaults.h: s/gansidecl.h/ansidecl.h/ in comment.
        * ggc.h, config/fr30/fr30.h, config/mcore/mcore.c:
        Don't include gansidecl.h.
        * intl.c, main.c, version.c, fixinc/fixlib.h,
        fixinc/procopen.c, fixinc/server.c: Include ansidecl.h not
        gansidecl.h.

Tue Apr  3 19:41:21 CEST 2001  Jan Hubicka  <jh@suse.cz>

        * i386.c (ix86_force_to_memory, ix86_free_from_memory):
        Update for 64bit.

2001-04-03  Zack Weinberg  <zackw@stanford.edu>

        * config/i386/xm-beos.h, config/i386/xm-isc.h,
        config/i386/xm-next.h, config/i386/xm-sco.h,
        config/i386/xm-sco5.h, config/m68k/xm-plexus.h,
        config/m88k/xm-m88k.h: Delete.

        * config/i386/xm-djgpp.h: Don't define __MSDOS__.
        * config/romp/xm-romp.h: Don't define bcopy.
        * config/rs6000/xm-beos.h: Don't define bcopy, HAVE_VPRINTF,
        HAVE_PUTENV, HAVE_RENAME, or USE_C_ALLOCA.

        * config.gcc: Remove references to deleted files.

        14 xm-host.h remain, 1 xm-cpu.h.

2001-04-03  Jakub Jelinek  <jakub@redhat.com>
            David S. Miller  <davem@pierdol.cobaltmicro.com>
            Andrew MacLeod  <amacleod@redhat.com>

        Use byte offsets in SUBREGs instead of words.

        * alias.c (nonlocal_mentioned_p): Use subreg_regno function.
        * caller-save.c (mark_set_regs): Change callers of subreg_hard_regno
        to pass new argument.
        (add_stored_regs): Use subreg_regno_offset function.
        * calls.c (expand_call): For non-paradoxical SUBREG take endianess
        into account.
        (precompute_arguments): Use gen_lowpart_SUBREG.
        * combine.c (try_combine): Replace explicit XEXP with SUBREG_REG.
        (combine_simplify_rtx): Rework to use SUBREG_BYTE.
        (simplify_set): Rework to use SUBREG_BYTE.
        (expand_field_assignment): Use SUBREG_BYTE.
        (make_extraction): Use SUBREG_BYTE.
        (if_then_else_cond): Use SUBREG_BYTE.
        (apply_distributive_law): Use SUBREG_BYTE and fixup subreg comments.
        (gen_lowpart_for_combine): Compute full byte offset.
        * cse.c (mention_regs): Use SUBREG_BYTE.
        (remove_invalid_subreg_refs): Rework to use SUBREG_BYTE.
        (canon_hash): Use SUBREG_BYTE.
        (fold_rtx): Pass SUBREG_BYTE div UNITS_PER_WORD to operand_subword.
        (gen_lowpart_if_possible): Formatting.
        * dbxout.c (dbxout_symbol_location): Compute SUBREG hard regnos
        correctly.
        * dwarf2out.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
        (mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
        (loc_descriptor): Fixup explicit XEXP into SUBREG_REG
        * dwarfout.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
        (output_mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
        (output_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
        * emit-rtl.c (gen_rtx_SUBREG): New function, used to verify
        certain invariants about SUBREGs the compiler creates.
        (gen_lowpart_SUBREG): New function.
        (subreg_hard_regno): New function to get the final register number.
        (gen_lowpart_common): Use SUBREG_BYTE.
        (gen_imagpart): Spacing nits.
        (subreg_realpart_p): Use SUBREG_BYTE.
        (gen_highpart): Use SUBREG_BYTE.
        (subreg_lowpart_p): Always compute endian corrected goal offset,
        even at the byte level, then compare against that.
        (constant_subword): New function, pulled out all constant cases
        from operand_subword and changed second argument name to offset.
        (operand_subword): Detect non REG/SUBREG/CONCAT/MEM cases early
        and call constant_subword to do the work.  Return const0_rtx if
        looking for a word outside of OP.
        (operand_subword_force): Change second arg name to offset.
        * expmed.c (store_bit_field): Use SUBREG_BYTE.
        (store_split_bit_field): Use SUBREG_BYTE.
        (extract_bit_field): Use SUBREG_BYTE.
        (extract_split_bit_field): Use SUBREG_BYTE.
        (expand_shift): Use SUBREG_BYTE.
        * expr.c (store_expr, expand_expr): Use gen_lowpart_SUBREG.
        * final.c (alter_subreg) Use subreg_hard_regno and SUBREG_BYTE.
        * flow.c (set_noop_p): Use SUBREG_BYTE.
        (mark_set_1): Remove ALTER_HARD_SUBREG. Use subreg_regno_offset instead.
        * function.c (fixup_var_refs_1): Fixup explicit XEXP into a SUBREG_REG.
        (fixup_memory_subreg): Use SUBREG_BYTE and remove byte endian
        correction code.
        (optimize_bit_field): Use SUBREG_BYTE.
        (purge_addressof_1): Use SUBREG_BYTE.
        (purge_single_hard_subreg_set): Use subreg_regno_offset function.
        (assign_params): Mark arguments SUBREG_PROMOTED_VAR_P if they are
        actually promoted by the caller and PROMOTE_FOR_CALLS_ONLY is true.
        * gengenrtl.c (special_rtx): Add SUBREG.
        * global.c (mark_reg_store): Use SUBREG_BYTE.
        (set_preference): Rework to use subreg_regno_offset and SUBREG_BYTE.
        * ifcvt (noce_emit_move_insn): Use SUBREG_BYTE.
        * integrate.c (copy_rtx_and_substitute): Use SUBREG_BYTE and make sure
        final byte offset is congruent to subreg's mode size.
        (subst_constants): Use SUBREG_BYTE.
        (mark_stores): Use subreg_regno_offset function.
        * jump.c (rtx_renumbered_equal_p, true_regnum): Use subreg_regno_offset
        function and SUBREG_BYTE.
        * local-alloc.c (combine_regs): Use subreg_regno_offset function.
        (reg_is_born): Use subreg_hard_regno.
        * recog.c (valid_replace_rtx_1): Use SUBREG_BYTE and remove byte
        endian correction code.  Don't combine subregs unless resulting
        offset aligns with type.  Fix subreg constant extraction for DImode.
        Simplify SUBREG of VOIDmode CONST_DOUBLE.
        (general_operand): Remove dead mode_altering_drug code.
        (indirect_operand): Use SUBREG_BYTE.
        (constrain_operands): Use subreg_regno_offset function.
        * reg-stack.c (get_true_reg): Use subreg_regno_offset function.
        * regmove.c (regmove_optimize): Use SUBREG_BYTE.
        (optimize_reg_copy_3): Use gen_lowpart_SUBREG.
        * regs.h (REG_SIZE): Allow target to override.
        (REGMODE_NATURAL_SIZE): New macro which target can override.
        * reload.c (reload_inner_reg_of_subreg): subreg_regno should be used
        on the entire subreg rtx.
        (push_reload): Use SUBREG_BYTE in comments and code.
        (find_dummy_reload): Use subreg_regno_offset.  Only adjust offsets
        for hard registers inside subregs.
        (operands_match_p): Use subreg_regno_offset.
        (find_reloads): Use SUBREG_BYTE and only advance offset for subregs
        containing hard regs.
        (find_reload_toplev): Use SUBREG_BYTE.  Remove byte endian
        corrections when fixing up MEM subregs.
        (find_reloads_address_1): Use SUBREG_BYTE, subreg_regno, and
        subreg_regno_offset where appropriate.
        (find_reloads_subreg_address): Use SUBREG_BYTE.  Remove
        byte endian corrections when fixing up MEM subregs.
        (subst_reloads): When combining two subregs, make sure final
        offset is congruent to subreg's mode size.
        (find_replacement): Use SUBREG_BYTE and subreg_regno_offset.
        (refers_to_regno_for_reload_p): Use subreg_regno.
        (reg_overlap_mentioned_for_reload_p): Use subreg_regno_offset.
        * reload1.c (eliminate_regs) Use SUBREG_BYTE. Remove byte endian
        correction code for memory subreg fixups.
        (forget_old_reload_1): Use subreg_regno_offset.
        (choose_reload_regs): Use subreg_regno.
        (emit_input_reload_insns): Use SUBREG_BYTE.
        (reload_combine_note_store): Use subreg_regno_offset.
        (move2add_note_store): Use subreg_regno_offset.
        * resource.c (update_live_status, mark_referenced_resources): Use
        subreg_regno function.
        (mark_set_resources): Use subreg_regno function.
        * rtl.h (SUBREG_WORD): Rename to SUBREG_BYTE.
        (subreg_regno_offset, subreg_regno): Define prototypes.
        (subreg_hard_regno, constant_subword, gen_rtx_SUBREG): Newi functions.
        (gen_lowpart_SUBREG): Add prototype.
        * rtl.texi (subreg): Update to reflect new byte offset representation.
        Add mentioning of the effect that BYTES_BIG_ENDIAN has on subregs now.
        * rtlanal.c (refers_to_regno_p): Use subreg_regno.
        (reg_overlap_mentioned_p): Use subreg_regno.
        (replace_regs); Make sure final offset of combined subreg is
        congruent to size of subreg's mode.
        (subreg_regno_offset): New function.
        (subreg_regno): New function.
        * sched-vis.c (print_value): Change SUBREG_WORD to SUBREG_BYTE.
        * sdbout.c (sdbout_symbol): Compute offset using alter_subreg.
        * stmt.c (expand_anon_union_decl): Use gen_lowpart_SUBREG.
        * tm.texi (ALTER_HARD_SUBREG): Remove, it is now dead.
        (SUBREG_REGNO_OFFSET): Describe SUBREG_REGNO_OFFSET overrides.
        * config/a29k/a29k.c (gpc_reg_operand): Use subreg_regno.
        (a29k_get_reloaded_address): Use SUBREG_BYTE.
        (print_operand): Use SUBREG_BYTE.
        * config/alpha/alpha.c (print_operand_address): Use SUBREG_BYTE.
        * config/arm/arm.c (arm_reload_in_hi): Use SUBREG_BYTE.
        (arm_reload_out_hi): Use SUBREG_BYTE.
        * config/d30v/d30v.c (d30v_split_double): Use subreg_regno_offset
        instead of SUBREG_WORD.
        (d30v_print_operand_memory_reference): Use subreg_regno_offset.
        * config/dsp16xx/dsp16xx.md (extendqihi2, zero_extendqihi2): Fix
        SUBREG creation to use byte offset.
        * config/h8300/h8300.md (Unnamed HImode zero extraction and 16bit
        inverted load insns): Fix explicit rtl subregs to use byte
        offsets.
        * config/i370/i370.md (cmpstrsi, movstrsi, mulsi3, divsi3,
        udivsi3, umodsi3): Generate SUBREGs with byte offsets.
        * config/i860/i860.c (single_insn_src_p): Use SUBREG_BYTE.
        * config/i860/i860.md (mulsi3_big): Fixup explicit SUBREGs in rtl
        to use byte offsets.
        (unnamed fmlow.dd insn): Fixup SUBREGS to use byte offsets.
        * config/i960/i960.md (extendhisi2): Generate SUBREGs with byte
        offsets, also make sure it is congruent to SUBREG's mode size.
        (extendqisi2, extendqihi2, zero_extendhisi2, zero_extendqisi2,
        unnamed ldob insn): Generate SUBREGs with byte offset.
        (zero_extendqihi2): SUBREG's are byte offsets.
        * config/m68hc11/m68hc11.c (m68hc11_gen_lowpart): Use SUBREG_BYTE.
        (m68hc11_gen_highpart): Use SUBREG_BYTE.
        * config/m68k/m68k.md (zero_extendhisi2, zero_extendqihi2,
        zero-extendqisi2): Generate SUBREGs with byte offset.
        (umulsidi3, mulsidi3, subreghi1ashrdi_const32,
        subregsi1ashrdi_const32, subreg1lshrdi_const32): Fixup explicit
        subregs in rtl to use byte offsets.
        * config/m88k/m88k.md (extendsidi2): fixup subregs to use byte offset.
        * config/mips/mips.c (mips_move_1word): Use subreg_regno_offset.
        (mips_move_2words): Use subreg_regno_offset.
        (mips_secondary_reload_class): Use subreg_regno_offset.
        * config/mips/mips.md (DImode plus, minus, move, and logical op
        splits): Fixup explicit subregs in rtl to use byte offsets.
        * config/mn10200/mn10200.c (print_operand): Use subreg_regno function.
        * config/mn10300/mn10300.c (print_operand): Use subreg_regno function.
        * config/ns32k/ns32k.md (udivmoddisi4): Fix explicit subregs in
        rtl to use byte offsets.
        * config/pa/pa.c (emit_move_sequence): Use SUBREG_BYTE.
        * config/pa/pa.md (floatunssisf2, floatunssidf2, mulsi3): fix explicit
        subregs to use byte offsets.
        * config/pdp11/pdp11.md (zero_extendhisi2, modhi3, modhi3+1):
        Fixup explicit subregs in rtl to use byte offsets.
        * config/romp/romp.c (memory_offset_in_range_p): Use SUBREG_BYTE
        and remove byte endian correction code.
        * config/sh/sh.c (output_movedouble): Use subreg_regno.
        (gen_ashift_hi): Use SUBREG_BYTE.
        (regs_used): Use subreg_regno_offset.
        (machine_dependent_reorg): Use subreg_regno_offset.
        * config/sh/sh.h (INDEX_REGISTER_RTX_P): Use SUBREG_BYTE.
        * config/sh/sh.md (DImode and DFmode move splits): Use subreg_regno.
        (movdf_i4): Subregs are byte offsets now.
        * config/sparc/sparc.c (ultra_find_type): Use SUBREG_BYTE.
        * config/sparc/sparc.h (ALTER_HARD_SUBREG): Removed.
        (REGMODE_NATURAL_SIZE): Override.
        (REG_SIZE): For SUBREG check float mode on SUBREG_REG's mode.
        * config/sparc/sparc.md (TFmode move splits): Generate SUBREGs
        with byte offsets.
        (zero_extendhisi2, zero_extendqidi2_insn, extendhisi2,
        extendqihi2, sign_extendqihi2_insn, sign_extendqisi2_insn,
        extendqidi2): Generate SUBREGs with byte offsets, also make sure
        it is congruent to SUBREG's mode size.
        (smulsi3_highpart_v8plus): Fix explicit subregs in rtl to use byte
        offsets.
        (cmp_siqi_trunc, cmp_siqi_trunc_set, cmp_diqi_trunc,
        cmp_diqi_trunc_set, lshrdi3_v8plus+1, lshrdi3_v8plus+2,
        lshrdi3_v8plus+3, lshrdi3_v8plus+4): Use proper
        SUBREG_BYTE offset for non-paradoxical subregs in patterns.
        * config/v850/v850.c (print_operand, output_move_double): Use
        subreg_regno function.

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>

        * pa.h: Revise comments for TARGET_NO_SPACE_REGS and
        TARGET_FAST_INDIRECT_CALLS.
        * pa.c (override_options): TARGET_NO_SPACE_REGS is now OK with
        -fPIC.  Don't warn.
        (return_addr_rtx): Short circuit export stub matching when
        TARGET_NO_SPACE_REGS.
        (output_millicode_call): For out of range calls, make -fPIC
        take precedence, then TARGET_PORTABLE_RUNTIME, then ble.  Don't
        return before delay slot checks when TARGET_PORTABLE_RUNTIME.
        * pa.md: Modify length attr calculation of all millicode insns to
        match above.

2001-04-02  Geoffrey Keating  <geoffk@redhat.com>

        * configure.in (gcc_cv_as_leb128): Correct name of cache variable.
        Require at least 2.11 in the version test.  Specifically check
        for and reject GAS version 2.10.90.
        * configure: regenerate.

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

        * pa.c (override_options): Remove PIC profiling warning.
        (hp_profile_labelno): Delete.
        (hp_profile_label_rtx): Delete.
        (hp_profile_label_name): Delete.
        (pa_add_gc_roots): Remove reference to hp_profile_label_rtx.
        (output_function_prologue): Remove profiling code and all tests on
        profile_flag.  Move store of PIC_OFFSET_TABLE_REGNUM now that
        merge_sp_adjust_with_store can work for PIC and profiling.
        (hppa_expand_epilogue): Remove profile_flag test.
        (hppa_can_use_return_insn_p): Likewise.
        (hppa_init_pic_save): Emit before tail_recursion_reentry, and
        cater for PROFILE_HOOK.
        (hppa_profile_hook): New function.
        * pa.h (FUNCTION_PROFILER): Now does nothing.
        (PROFILE_HOOK): Define.
        (hppa_profile_hook): Declare.
        (PROFILE_BEFORE_PROLOGUE): Delete.
        (ASM_OUTPUT_REG_PUSH): Delete.
        (ASM_OUTPUT_REG_POP): Delete.
        * pa.md (call_profiler): Turn it into a call insn, and don't `use'
        r24.  Accept function name operand, and use this and a locally
        generated label to calculate pc-rel offset to func start.

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

        * $(HOST_PREFIX_1)errors.o, $(HOST_PREFIX_1)ggc-none.o,
        ggc-common.o, ggc-simple.o, ggc-page.o, ggc-none.o: Depend on
        $(SYSTEM_H).

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  Richard Henderson  <rth@redhat.com>

        * except.h (lang_eh_type_covers): Mark extern.
        (lang_eh_runtime_type): Likewise.

2001-04-02  Zack Weinberg  <zackw@stanford.edu>

        * genattr.c, gencheck.c, gencodes.c, genconfig.c, genflags.c,
        gengenrtl.c:  Wrap generated header in multiple-include guard.
        Improve error checking.

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

        * configure.in: Don't check for putenv.
        * configure: Regenerate.
        * gcc.c (putenv): Don't define.
        * vax/xm-vms.h: Handle putenv.

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, noce_try_minmax,
        noce_try_abs): 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.

2001-04-01  Richard Henderson  <rth@redhat.com>

        * except.h (expand_builtin_dwarf_fp_regnum): Declare.

Sun Apr  1 11:49:05 CEST 2001  Jan Hubicka  <jH@suse.cz>

        * i386.md: remove obsoleted comments.
        (adddi_?): Rename to adddi_?_rex64; disable for 32bit.
        (x86_movsicc_0_m1_rex64): Rename to x86_movdicc_0_m1_rex64;
        fix output template.

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

        * config/avr/libgcc.S (__mulhi3): Optimize previous change.

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

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

Fri Mar 30 17:36:43 CEST 2001  Jan Hubicka  <jh@suse.cz>

        * i386.c (ix86_split_long_move): Use change address to compensate
        stack pointer change in push instruction.

Fri Mar 30 00:31:00 CEST 2001  Jan Hubicka  <jh@suse.cz>

        * i386.md (sse_movdfcc_eq): Fix constraint (sse_mov?fcc splitter): Use operands_match_p
        instead of rtx_equal_p; fix the output template.

Fri Mar 30 00:21:41 CEST 2001  Jan Hubicka  <jh@suse.cz>

        * i386.c (ix86_expand_setcc): Support 64bit.
        (ix86_expand_int_movcc): Likewise.
        * i386.md (movdicc_rex64, x86_movsicc_0_m1_rex64, movdicc_c_rex64):
        New patterns.

        * i386.md (allocate_stack_worker): Turn to expander.
        (allocate_stack_worker_1, allocate_stack_worker_rex64): New insns.

        * i386.c (print_reg): Do not print x86_64 style regs on IA-32

2001-03-29  Richard Henderson  <rth@redhat.com>

        * libgcc2.c [L__main]: Include unwind-dw2-fde.h instead of frame.h.

2001-03-28  Matthew Hiller  <hiller@redhat.com>

        * config/mn10300/mn10300.md (cmpsi): Fix first alternative's
        output template.

        * MAINTAINERS: Added self.

2001-03-28  Richard Henderson  <rth@redhat.com>

        * Makefile.in (cs-tconfig.h): Depend on CONFIG_H, not GCONFIG_H.
        Use ALL_CFLAGS not HOST_CFLAGS for sjlj detection.

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  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * toplev.h (fatal_error): Add ATTRIBUTE_NORETURN.

        * tradcif.y (yyerror): Likewise.  Add format specifier in call to
        `error'.

        * tradcpp.c (macroexpand): Likewise for call to `error_with_line'.

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

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

2001-03-28  Marek Michalkiewicz  <marekm@linux.org.pl>

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

2001-03-28  Bernd Schmidt  <bernds@redhat.com>

        * cselib.c (hash_rtx): Don't do tail recursion elimination by hand.

        * 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  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.

2001-03-28  Richard Henderson  <rth@redhat.com>

        * 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.

        * 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/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/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.

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.
        * flags.h (flag_new_exceptions): Remove.
        * 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.
        * integrate.h (struct inline_remap): Add local_return_label.
        * 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.

2001-03-27  Richard Henderson  <rth@redhat.com>

        * 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.

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

        * bb-reorder.c, dwarf2out.c, except.c, except.h, flow.c,
        jump.c, toplev.c:
        Rename asynchronous_exceptions to flag_non_call_exceptions.

        * gthr-single.h (UNUSED): New.  Distinguish between how C
        and C++ mark unused function arguments.  Use throughout.

        * 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.

        * except.h (flag_non_call_exceptions): Move ...
        * flags.h: ... here.

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

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

        * 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.

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

2001-03-27  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * configure.in: Don't check for bcopy.
        * configure, config.in: Regenerate.

        * system.h: Don't define or prototype bcopy, instead poison it.

2001-03-27  Richard Henderson  <rth@redhat.com>

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

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

2001-03-27  Stan Shebs  <shebs@apple.com>

        * objc/objc-act.c (objc_init): Use dump_base_name.
        (gen_declaration): Clear the buffer arg.
        (gen_declaration_1): New function, body of gen_declaration.
        (adorn_decl): Call gen_declaration_1 instead of gen_declaration.
        (gen_method_decl): Ditto, plus always clear buffer arg.
        (error_with_ivar): Simplify.
        (warn_with_method): Ditto.
        (build_message_expr): Don't clear buffers.
        (dump_interface): Ditto.
        (objc_debug): Ditto.
        (build_keyword_selector): Clear the buffer by only zeroing
        the first element.
        (objc_implementation_context): Declare.
        (start_class): Warn about missing @end.
        (finish_objc): Ditto.

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

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

2001-03-27  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * Makefile.in (SYSTEM_H): Define.
        Depend on $(SYSTEM_H), not system.h.

        * objc/Make-lang.in: Depend on $(SYSTEM_H), not system.h.

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  Zack Weinberg  <zackw@stanford.edu>

        * config.gcc (m68hc11-*-*, m68hc12-*-*): Convert to new tm.h
        inclusion style.  xm-m68hc11.h no longer exists.
        * config/m68hc11/xm-m68hc11.h: Delete file.
        * config/m68hc11/m68hc12.h: Convert to new tm.h inclusion style.

        * config/m68hc11/m68hc11.h: Convert to new tm.h inclusion style.
        Don't define GCC_VERSION, N_, or PARAMS; don't include
        gansidecl.h or stdio.h.  Define inhibit_libc here.
        Make code conditioned on #if GCC_VERSION > 2095 unconditional.
        Delete code conditioned on #if GCC_VERSION == 2095.

        * config/m68hc11/m68hc11-protos.h, config/m68hc11/m68hc11.c:
        Make code conditioned on #if GCC_VERSION > 2095 unconditional.
        Delete code conditioned on #if GCC_VERSION == 2095.

2001-03-27  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * system.h: Include symcat.h.
        (STRINGIFY): Don't define.

        * configure.in: Adjust comment.

        * builtins.c: Use STRINGX, not STRINGIFY.
        * gencheck.c: Likewise.
        * gengenrtl.c: Likewise.
        * protoize.c: Likewise.

        * cpplex.c: Don't include symcat.h.
        * cpplib.c: Likewise.

        * gansidecl.h (HAVE_STRINGIZE): Don't define.

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

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

2001-03-26  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * sbitmap.c (sbitmap_copy): Call memcpy, not bcopy.

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

        * 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.

2001-03-26  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * combine.c (try_combine): Use memcpy, not bcopy.

        * genattrtab.c (expand_units): Likewise.

Mon Mar 26 15:55:08 CEST 2001  Jan Hubicka  <jh@suse.cz>

        * i386.md (push mem DI peep2): New.
        (mov 0, mov -1 peep2): Handle 64bit.
        (lea to arithmetics peep2): Handle 64bit leas.
        (rsp arithmetics to push/pop peep2s): New.

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

Mon Mar 26 14:35:18 CEST 2001  Jan Hubicka  <jh@suse.cz>

        * i386.c (struct machine_function): Add save_varrargs_registers.
        (ix86_save_varrargs_registers): New macro.
        (ix86_frame_layout): Support 64bit; support red zones and varrargs area.
        (ix86_expand_prologue): Likewise.
        (ix86_emit_epilogue_esp_adjustement): Likewise.
        (ix86_expand_epilogue): Likewise.
        * i386.md (pro_epilogue_adjust_stack): Turn to expander; support 64bit.
        (pro_epilogue_adjust_stack_1): New insn.
        (pro_epilogue_adjust_stack_rex64): Likewise.
        * i386.h (MASK_NO_RED_ZONE): New constant.
        (TARGET_RED_ZONE): New macro.
        (TARGET_OPTIONS): Add "red-zone" and "no-red-zone"
        (RED_ZONE_SIZE): New constant.
        (RED_ZONE_RESERVE): New constant.

2001-03-25  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * toplev.c (set_float_handler): Use memcpy, not bcopy.

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.

2001-03-25  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * mkconfig.sh (DEFINES): Handle entries with '='.

        * config.gcc: Don't use i370/xm-mvs.h or ns32k/xm-pc532-min.h.
        Set xm_defines to MACRO=value instead.

        * i370/xm-mvs.h: Delete.

        * ns32k/xm-pc532-min.h: Likewise.

Sun Mar 25 15:01:40 CEST 2001  Jan Hubicka  <jh@suse.cz>

        * i386.md (ashldi3, ashrdi3, lshrdi3): Change predicates to
        shiftdi_operand;
        use ix86_expand_binary_operator
        (?sh??i_?): Disable for 64bit.
        * i386.h (PREDICATE_CODES): Add shiftdi_operand.
        * i386.c (shiftdi_operand): New predicate.

        * (ashldi3_1_rex64, ashldi3_cmp_rex64, ashlsi3_1_zext, ashlsi3_cmp_zext,
        ashrdi3_63_rex64, ashrdi3_1_one_bit_rex64, ashrdi3_1_rex64,
        ashrdi3_one_bit_cmp_rex64, ashrdi3_cmp_rex64, ashrsi3_31_zext,
        ashrsi3_1_one_bit_zext, ashrsi3_1_zext, ashrsi3_one_bit_cmp_zext,
        ashrsi3_cmp_zext, lshrdi3_1_one_bit_rex64, lshrdi3_1_rex64,
        lshrdi3_cmp_one_bit_rex64, lshrdi3_cmp_rex64, lshrsi3_1_one_bit_zext,
        lshrsi3_1_zext, lshrsi3_cmp_one_bit_zext, lshrsi3_cmp_zext,
        rotlsi3_1_one_bit_rex64, rotldi3_1_rex64,
        rotlsi3_1_one_bit_zext, rotlsi3_1_zext, rotrdi3_1_one_bit_rex64,
        rotrdi3_1_rex64, rotrsi3_1_one_bit_zext, rotrsi3_1_zext): New patterns.
        (rotldi3, rotrdi3): New expanders.

Sun Mar 25 14:25:33 CEST 2001  Jan Hubicka  <jh@suse.cz>

        * i386.md (movstrsi): Move offline.
        (movstrdi): New.
        (strmovdi_rex64): New.
        (strmov?i): Accept 64bit.
        (strmov?i_rex64): New.
        (strmov?i_rex_1): New.
        (strmov?i_1): Disable for 64bit.
        (rep_mov?i_rex64): New.
        (rep_mov?i): Disable for 64bit.
        (clrstrsi): Move offline.
        (strset?i_rex64): New.
        (strset?i: Accept 64bit.
        (rep_stos?i): Disable for 64bit.
        (rep_stos?i_rex64): New.
        (strset?i_rex_1): New.
        (strset?i_1): Disable for 64bit.
        (cmpstrsi): Accept 64bit.
        (cmpstrsi_nz_1): Rename to cmpstrqi_nz_1; Disable for 64bit.
        (cmpstrqi_nz_rex_1): New.
        (cmpstrsi_1): Rename to cmpstrqi_1; Disable for 64bit.
        (strlensi): Move offline.
        (strlendi): New.
        (strlenqi_1): Disable for 64bit; fix constraints.
        (strlenqi_rex_1): New.
        * i386.c (ix86_adjust_counter): New static function.
        (ix86_zero_extend_to_Pmode): Likewise.
        (ix86_expand_aligntest): Likweise.
        (ix86_expand_strlensi_unroll_1): Make static; update for 64bit.
        (ix86_expand_movstr): New global function.
        (ix86_expand_clrstr): New global function.
        (ix86_expand_strlen): New global function.
        * i386-protos.h (ix86_expand_movstr, ix86_expand_clrstr,
        ix86_expand_strlen): Declare.
        (ix86_expand_strlensi_unroll_1): Delete.

Sat Mar 24 23:15:19 CET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.md (cmpdi): Fix operand predicates.
        (cmpdi_ccno_1_rex64, cmpdi_minus_1_rex64, cmpdi_1_rex64,
         cmpdi_1_insn_rex64): New patterns.
        (adddi3): Turn to expander.
        (adddi3_1, adddi3_carry_rex64, adddi3_cc_rex64): New patterns.
        (addsi3_carry_zext): New pattern.
        (adddi_?_rex64): New patterns and splitters.
        (addsi_?_zext): New patterns.
        (subsi3_carry_zext): New pattern.
        (subdi_?_rex64): New patterns and splitters.
        (iorsi_?_zext): New patterns.
        (iordi_?_rex64): New patterns and splitters.
        (iorsi_?_zext): New patterns.
        (iorsi_?_zext_imm): New patterns.
        (xorsi_?_zext): New patterns.
        (xordi_?_rex64): New patterns and splitters.
        (xorsi_?_zext): New patterns.
        (negdi*): New patterns.
        (one_cmpldi*): Likewise.
        (one_cmplsi*_zext, negsi*_zext): Likewise.
        (testqi_ext_3_rex64): New pattern.

Sat Mar 24 21:13:28 CET 2001  Jan Hubicka  <jh@suse.cz>

        * i386-protos.h (ix86_split_long_move): Return void.
        * i386.c (ix86_split_to_parts): Handle 64bit target.
        (ix86_split_long_move): Likewise.
        * i386.md (all calls to ix86_split_long_move): Update.

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  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.

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

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

Fri Mar 23 16:59:08 2001  J"orn Rennecke <amylaar@redhat.com>

        * stor-layout.c (layout_type): Give OFFSET_TYPE a MODE_INT type.

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

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

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  Gordon Sadler  <gbsadler1@lcisp.com>

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

Thu Mar 22 22:15:59 CET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.md (zero_extendsidi2_32): Break out from ...
        (zero_extendsidi2): ... here ; turn to expander.
        (zero_extendsidi2_rex64): New.
        (extendsidi2_32): Break out from ...
        (extendsidi2): ... here ; turn to expander.
        (extendsidi2_rex64): New.
        (zero_extendhidi2, zero_extendqidi2, extendhidi2, extendqidi2): New.
        (trunc?f?f splitters): Add 64bit versions.

Thu Mar 22 21:41:16 CET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.md (pushsi, pushsi2_prologue): Disable.
        (pushsi2_rex64): New.
        (movabs?i_1_rex64, movabs?i_2_rex64): New.
        (movqi_ext_1): Disable for 64bit.
        (movqi_ext_1_rex64): New.
        (pushdi2_rex64): New pattern, peep2s and splitter.
        (pushdi2_prologue_rex64): New pattern.
        (popdi1_epilogue_rex64, popdi1, movdi_xor_rex64, movdi_or_rex64):
        Likewise.
        (movdi splitters): Disable for 64bit.
        (movdi_1_rex64): New pattern, peep2s and splitters.
        (swapdi): New pattern.
        (pushsf): Disable for 64bit.
        (pushsf_rex64): New pattern and splitter.
        (pushdf_nointeger): Disable for 64bit.
        (pushdf_integer): Handle the 64bit case.
        (pushtf): Likewise; update splitters.

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.

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

        * invoke.texi (-ffast-math): Remove duplicate line about
        __FAST_MATH__.

        * 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.

2001-03-20  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.

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

        * gcse.c (hash_scan_set): An expression is not anticipatible if it
        is part of a multi-SET insn.

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

        * config/i386/i386.md (conditional_trap): Remove warning.

        * recog.c (push_operand): Fix error in last change that caused
        undefined symbol on many targets.

        * 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.

Wed Mar 21 20:33:26 CET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.c (override_options): Default ix86_regparm to REGPARM_MAX.
        (override_options): Use properlimits for preferred_stack_boundary.
        (ix86_valid_type_attribute_p): Disable stdcall and cdecl attributes
        on x86_64.
        (ext_register_operand): Accept DImode.
        (load_pic_register): Abort on 64bit.
        (gen_push): Use Pmode instead of SImode.
        (ix86_save_reg): Pic reg is never used on 64bit.
        (ix86_expand_prologue): Likewise.
        (ix86_emit_save_regs): Use Pmode instead of SImode.
        (legitimate_address_p): Check displacement for 64bit.
        (print_operand): Avoid outputting of (%rip) on 64bit.
        (print_operand_address): Output (%rip) where possible.
        (split_di): Abort on 64bit registers.
        (ix86_expand_branch): DImode comparison is simple for x86_64.
        (memory_address_length): Recognize memory addresses formed using
        PRE/POST modify.
        (ix86_data_alignment, ix86_local_alignment): Align arrays to 16 bytes
        for x86_64.
        * i386.h (TARGET_USE_SAHF): Disable for 64bit.

Wed Mar 21 18:51:19 CET 2001  Jan Hubicka  <jh@suse.cz>

        * recog.c (push_operand): Recognize new format of push instructions.

Wed Mar 21 10:53:57 CET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.md (pushqi1): New.
        * i386-protos.h (x86_64_general_operand, x86_64_szext_general_operand,
        x86_64_nonmemory_operand, x86_64_szext_nonmemory_operand,
        x86_64_immediate_operand, x86_64_immediate_operand,
        x86_64_zext_immediate_operand): Declare.
        * i386.c (x86_64_general_operand, x86_64_szext_general_operand,
        x86_64_nonmemory_operand, x86_64_szext_nonmemory_operand,
        x86_64_immediate_operand, x86_64_immediate_operand,
        x86_64_zext_immediate_operand): define.
        * i386.h (PREDICATE_CODES): Add new predicates.

Wed Mar 21 10:25:13 CET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.md (pophi1, popqi1, pushqi1): Remove.

        * expr.c (emit_single_push_insn): New function.
        (move_by_pieces): Accept NULL as destination for push instructions.
        (gen_push_operand): Kill.
        (emit_push_insn): Pass NULL when pushing; avoid updating of
        stack_pointer_delta.
        * expr.h (gen_push_operand): Kill.

Tue Mar 20 20:15:06 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * rtl.texi (COMPARE): Clarify documentation and reference section
        on comparisons.

2001-03-20  Stan Shebs  <shebs@apple.com>

        * objc/objc-act.c (get_static_reference): Use NULL_TREE.
        (get_object_reference): Ditto.
        (error_with_ivar): Use error_with_file_and_line.
        (warn_with_method): Use warning_with_file_and_line.

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

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

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.

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

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

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  Stan Shebs  <shebs@apple.com>

        * objc/objc-act.c (maybe_objc_method_name): Remove, never called.
        * c-lang.c (maybe_objc_method_name): Ditto.
        * c-tree.h (maybe_objc_method_name): Remove decl.

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

        * gcc.c (init_gcc_specs): Fix comment.

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.

2001-03-19  Zack Weinberg  <zackw@stanford.edu>

        * Makefile.in (hash.o): Depend on $(GCONFIG_H), not $(CONFIG_H).

2001-03-19  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.

Mon Mar 19 18:53:54 CET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.md (absdf2 expander): Fix 64bit case.

2001-03-19  Brad Lucier  <lucier@math.purdue.edu>

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

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.

2001-03-18  Richard Henderson  <rth@redhat.com>

        * defaults.h (ACCUMULATE_OUTGOING_ARGS, PUSH_ARGS): Move from ...
        * calls.c: ... here.
        * combine.c, expr.c, final.c, function.c toplev.c: Don't provide
        defaults for them here.

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.

2001-03-17  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.

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

        * 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.

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.

Sat Mar 17 11:52:34 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * combine.c (undobuf): Remove field previous_undos; all refs deleted.
        (gen_rtx_combine): Deleted; all references changed as appropriate.
        (gen_unary): Deleted; all refs changed to call simplify_gen_unary.

        * print-tree.c (print_node): Print DECL_NONADDRESSABLE_P.

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  Phil Edwards  <pme@sources.redhat.com>

        * gccbug.in:  Remove high priority.

2001-03-16  Richard Henerson  <rth@redhat.com>

        * aclocal.m4 (gcc_AC_EXAMINE_OBJECT): Substitute leading od
        output with a space instead of deleting it.
        * configure: Regenerate.

2001-03-16  Zack Weinberg  <zackw@stanford.edu>

        * aclocal.m4 (gcc_AC_EXAMINE_OBJECT): New utility macro which
        handles the gory details of converting an object file into
        something that's safe to grep.
        (gcc_AC_C_COMPILE_BIGENDIAN): Rename to
        gcc_AC_C_COMPILE_ENDIAN.  Use gcc_AC_EXAMINE_OBJECT.  Put
        newlines at either end of the string we're looking for.
        Make 'checking ...' message less stilted.
        (gcc_AC_C_FLOAT_FORMAT): Use gcc_AC_EXAMINE_OBJECT.  Handle
        ARM in-memory layout and its hypothetical converse.  Don't
        define HOST_FLOAT_WORDS_BIG_ENDIAN unless it's different from
        HOST_WORDS_BIG_ENDIAN.

        * configure.in: Adjust for renamed macro.  Move
        gcc_AC_C_FLOAT_FORMAT below gcc_AC_C_COMPILE_ENDIAN.
        * configure, config.in: Regenerate.

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.

2001-03-16  Richard Henderson  <rth@redhat.com>

        * 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.

        * 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.

2001-03-16  Michael Meissner  <meissner@redhat.com>

        * mips.h (BITMASK_HIGH): Replacement for 0x80000000 that avoids
        warnings.
        (BITMASK_UPPER16): Replacement for 0xffff0000 that avoids
        warnings.
        (BITMASK_LOWER16): Replacement for 0x0000ffff.

        * mips.c (save_restore_insns): Use BITMASK_UPPER16/BITMASK_LOWER16
        instead of 0xffff0000/0x0000ffff to avoid warnings about constants
        being unsigned in ISO C and signed in traditional.
        (expand_prologue): Ditto.
        (RA_MASK): Use BITMASK_HIGH to avoid warnings.

        * mips.md (divmodsi4,divmodsi4): Use BITMASK_HIGH to avoid
        warnings.
        (divsi3,divdi3): Ditto.
        (modsi3,moddi3): Ditto.
        (fix_truncdfsi2,fix_truncdfdi2): Ditto.
        (fix_truncsfsi2,fix_truncsfdi2): Ditto.
        (movsi split): Use BITMASK_UPPER16/BITMASK_LOWER16 to avoid
        warnings.

Fri Mar 16 14:47:57 CET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.c (ix86_expand_fp_movcc): Do not attempt to construct
        SSE based conditional moves on LTGT/UNEQ conditions;
        Canonicalize EQ to NE.
        * i386.md (sse_mov?fcc): Disallow EQ and NE in IEEE mode.
        (sse_mov?fcc_ne): New.

        * i386-protos.h (sign_extended_value, zero_extended_value): Declare.

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.

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

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

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

        * dwarf2out.c (rtl_for_decl_location): Use DECL_RTL_IF_SET.

2001-03-15  Richard Henderson  <rth@redhat.com>

        * config/ia64/ia64.h (ASM_OUTPUT_DWARF_OFFSET): New.
        (ASM_OUTPUT_DWARF_PCREL): New.
        * config/ia64/hpux.h (ASM_OUTPUT_DWARF_OFFSET): Remove.

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  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.

2001-03-15  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 12:57:14 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  Bernd Schmidt  <bernds@redhat.com>

        * config/ia64/ia64.c (ia64_sched_reorder): Remove debugging aids.

Thu Mar 15 11:30:31 EST 2001  John Wehle  (john@feith.com)

        * i960.h (ROUND_TYPE_SIZE_UNIT): Fix typo.

Thu Mar 15 11:24:29 EST 2001  John Wehle  (john@feith.com)

        * i960.h (i960_maxbitalignment,
        i960_last_maxbitalignment): Declare.
        * i960.c (i960_maxbitalignment,
        i960_last_maxbitalignment): Make global.
        (process_pragma): Delete.
        (i960_pr_align, i960_pr_noalign): Move from here ...
        * i960-c.c: ... to this new file.
        * t-960bare (i960-c.o): New rule.
        * t-vxworks960 (i960-c.o): Likewise.
        * config.gcc (i960-*-*): Define c_target_objs and
        cxx_target_objs.

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

        * cselib.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.

        * config/ia64/ia64.c (maybe_rotate): New function, broken out of
        ia64_sched_reorder.
        (ia64_sched_reorder): Call maybe_rotate; also rotate after
        scheduling a stop bit.
        (ia64_emit_nops): Correctly handle ASMs.

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

        * varasm.c (assemble_variable): Use DECL_RTL_SET_P.

2001-03-15  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cpp.texi: Update documentation for -include and -imacros.
        * cppfiles.c (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.
        * cpphash.h (enum include_type): New.
        (struct buffer): Delete search from.  New search_cached.
        (_cpp_execute_include): Update prototype.
        * cppinit.c (do_includes): Use _cpp_execute_include.
        * cpplib.c (do_include_common): New function.
        (do_include, do_include_next, do_import): Use it.

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  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  Zack Weinberg  <zackw@stanford.edu>

        * aclocal.m4 (gcc_AC_C_CHARSET, gcc_AC_C_COMPILE_BIGENDIAN,
        gcc_AC_C_FLOAT_FORMAT): New macros.
        * configure.in: Add AC_PROG_CPP after CC tests;
        gcc_AC_C_CHARSET and gcc_AC_C_FLOAT_FORMAT after the sizeof
        tests; and gcc_AC_C_COMPILE_BIGENDIAN after gcc_AC_C_CHAR_BIT.
        * configure, config.in: Regenerate.

        * config/a29k/xm-a29k.h, config/arc/xm-arc.h,
        config/arm/xm-arm.h, config/c4x/xm-c4x.h,
        config/convex/xm-convex.h, config/d30v/xm-d30v.h,
        config/i370/xm-linux.h, config/i370/xm-oe.h,
        config/ia64/xm-ia64.h, config/m32r/xm-m32r.h,
        config/m68k/xm-m68k.h, config/mips/xm-mips.h,
        config/pa/xm-linux.h, config/pa/xm-pa.h,
        config/rs6000/xm-lynx.h, config/rs6000/xm-mach.h,
        config/rs6000/xm-rs6000.h, config/rs6000/xm-sysv4.h,
        config/sparc/xm-sparc.h, config/vax/xm-vax.h,
        config/we32k/xm-we32k.h: Delete.

        * config/i370/xm-mvs.h, config/m88k/m88k.h,
        config/romp/xm-romp.h, config/rs6000/xm-beos.h,
        config/vax/xm-vms.h: Don't define any of:
        HOST_FLOAT_FORMAT, HOST_EBCDIC, HOST_WORDS_BIG_ENDIAN

        * config/rs6000/aix.h: Define COLLECT_EXPORT_LIST here.

        * config.gcc: Remove references to deleted files.
        (i370-*-opened*): Use i370/xm-mvs.h (which now defines only
        FATAL_EXIT_CODE, which is the same between oe and mvs).

2001-03-14  DJ Delorie  <dj@redhat.com>
            Vladimir Makarov  <vmakarov@redhat.com>

        * config/i960/i960.c (i960_function_prologue): Compute size of
        frame according to number of registers actually saved there.

2001-03-14  Richard Henderson  <rth@redhat.com>

        * expr.c (emit_move_insn_1): Fix else if around #endif.

Wed Mar 14 22:39:12 CET 2001  Jan Hubicka  <jh@suse.cz>
                              Vojtech Pavlik

        * md.texi (machine constraints): Document 'Q', 'R', 'e' and 'Z'
        constraints.

Wed Mar 14 22:26:10 CET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.c (ix86_cmodel_string, ix86_cmodel): Define.
        (override_options): Parse cmodel string.
        (x86_64_sign_extended_value, x86_64_zero_extended_value): New.
        * i386.h (TARGET_OPTIONS): Add "cmodel".
        (EXTRA_CONSTRAINT): Recognize 'e' and 'Z'.
        (enum cmodel): New.
        (ix86_cmodel_string, ix86_cmodel): Declare.

Wed Mar 14 22:26:54 CET 2001  Jan Hubicka  <jh@suse.cz>

        Spot by Matt Kraai:
        * i386.h (GENERAL_REG_P): Add missing REG_P.

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

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

2001-03-14  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cppfiles.c (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.
        * cpphash.h (_cpp_simplify_pathname): Update prototype.

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

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

Wed Mar 14 19:29:50 CET 2001  Jan Hubicka  <jh@suse.cz>

        * expr.c (emit_move_insn_1): Guard PUSH_ROUNDING use by ifdef.

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

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

Wed Mar 14 16:36:25 CET 2001  Jan Hubicka  <jh@suse.cz>

        * expr.c (emit_move_insn_1):  Split push of complex value when
        no suitable push instruction exist.

        * i386.md (QImode move/add/shift patterns): Use ANY_QI_REG_P
        instead of QI_REG_P.

Tue Mar 13 22:22:04 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

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

2001-03-13  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  Zack Weinberg  <zackw@stanford.edu>

        * aclocal.m4 (gcc_AC_COMPILE_CHECK_SIZEOF, gcc_AC_C_CHAR_BIT,
        gcc_AC_C_LONG_LONG): New.
        * configure.in: Use them.  Probe the size of short, int, long,
        and long long/__int64 if we have them.  Move all the AC_C_*
        checks together, except gcc_AC_C_CHAR_BIT which has to go
        after AC_CHECK_HEADERS(limits.h).
        Take hwint.h out of host_xm_file and build_xm_file.

        * hwint.h: Unconditionally define HOST_BITS_PER_CHAR,
        HOST_BITS_PER_SHORT, HOST_BITS_PER_INT, HOST_BITS_PER_LONG,
        and HOST_BITS_PER_LONGLONG in terms of SIZEOF_* and CHAR_BIT.
        Move the HOST_WIDEST_INT setup logic here from system.h.
        Provide HOST_WIDEST_INT even if HOST_BITS_PER_LONGLONG is not
        defined.
        * system.h: Include hwint.h after limits.h.  HOST_WIDEST_INT
        is now handled by hwint.h.

        * config/alpha/xm-alpha-interix.h, config/alpha/xm-vms.h,
        config/c4x/xm-c4x.h, config/i370/xm-oe.h,
        config/ia64/xm-ia64.h: Don't define any of:
        HOST_BITS_PER_LONG, HOST_BITS_PER_CHAR, HOST_BITS_PER_SHORT,
        HOST_BITS_PER_LONGLONG.

        * config/alpha/xm-alpha.h, config/dsp16xx/xm-dsp16xx.h,
        config/h8300/xm-h8300.h, config/mips/iris6.h,
        config/mn10200/xm-mn10200.h, config/pa/xm-pa64hpux.h,
        config/sparc/xm-sp64.h: Delete.
        * config.gcc: Remove references to deleted files.

        * config/arm/xm-arm.h, config/mips/xm-mips.h: Don't define
        HOST_FLOAT_FORMAT to IEEE_FLOAT_FORMAT.
        * config/i370/xm-linux.h: Clarify floating-point situation in
        a comment.

2001-03-13  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cppfiles.c (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.
        * cpplib.c (do_include_next): Move the in-main-file diagnostic
        here from _cpp_execute_include.  Behave like #include if
        we're in the main file.

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

        * system.h (malloc, realloc, calloc, strdup): Only poison these
        tokens when IN_GCC is defined.

Tue Mar 13 14:38:44 CET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.md (abs?f expander): Support SSE case.
        (abd?f_if): Add new "USE"; add splitters.

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

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

2001-03-13  Jakub Jelinek  <jakub@redhat.com>

        * expr.c (store_expr): Add dont_store_target.  If temp is already in
        target before copying to reg, don't store it into target again.

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

        * cppinternals.texi: Update for file handling.

2001-03-12  Jeffrey Oldham  <oldham@codesourcery.com>

        * emit-rtl.c (remove_unnecessary_notes): Reverse Richard Kenner's
        2001-02-24 which broke building the Java library.
        * function.c (identify_blocks): Likewise.
        (all_blocks): Likewise.
        * integrate.c (integrate_decl_tree): Likewise.
        * print-tree.c (print_node): Likewise.
        * tree.h (BLOCK_NUMBER): Likewise.
        (struct tree_block): Likewise.

2001-03-12  David Edelsohn  <edelsohn@gnu.org>

        * rs6000/aix51.h (CPP_SPEC, CPLUSPLUS_CPP_SPEC): Fix typo in
        __WCHAR_TYPE__ definition.
        (WCHAR_TYPE_SIZE): #undef before #define.

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

        * cppfiles.c: Update comments.
        (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.

2001-03-12  Jeffrey Oldham  <oldham@codesourcery.com>

        * jump.c (reversed_comparison_code_parts): Reverse Jan Hubricka's
        2001-02-28 patch because it breaks arm-linux and mips-sgi-irix6.5.

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  Neil Booth  <neil@daikokuya.demon.co.uk>
            David Billinghurst <David.Billinghurst@riotinto.com>

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

Mon Mar 12 16:32:21 CET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.md (trunctfdf2_2): Rename missnamed pattern.
        (*_one_bit): Remove type on the match_operand in attributes.

Mon Mar 12 16:27:56 CET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.c: Commit forgotten hunk in previous patch.
        (regclass_map): Add extended registers.
        (dbx_register_map): Add missing frame register.

Mon Mar 12 15:41:08 CET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.md (all XFmode patterns except swapxf): Disable for 64bit.

        * i386.md (x86_sahf_1): Disable for 64bit.
        (popsi*, pophi*): Likewise.
        (pushqi, pushhi): Likewise.
        (movdi, pushdi): Likewise.
        (zero extend DImode splitter): Likewise.
        (adddi, minusdi splitter): Likewise.
        (umulsidi): Likewise.
        (umulsi): New.
        (mulsidi): Disable for 64bit
        (lshift:DI/ashift:DI): Disable for 64bit.
        (loop patterns): Likewise.
        (call_pop, call_value_pop expanders and patterns): Likewise.
        (prologue_get_pc): Likewise.
        (leave): Likewise.
        (fcmovDI pattern and splitter): Likewise.
        (movdfcc_1_rex64): New.

Mon Mar 12 15:16:36 CET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.h (VALID_FP_MODE_P): XFmode is invalid on x86_64.
        (MODES_TIEABLE_P): QImodes and DImodes are tiable on x86_64.
        (HARD_REGNO_CALLER_SAVE_MODE): Save QImodes as QImodes for x86_64.
        (STATIC_CHAIN_REGNUM): Set to r10 for x86_64.
        (PIC_OFFSET_TABLE_REGNUM): Set to INVALID_REGNUM for x86_64.
        (LIMIT_RELOAD_CLASS): Avoid limiting of QImodes on x86_64.
        (SECONDARY_OUTPUT_RELOAD_CLASS): No need to QImodes.
        (PUSH_ROUNDING): x86_64 rounds to 64bits.
        (CONSTANT_ADDRESS_P): Accept CONST_DOUBLE.
        (REGPARM_MAX): Set to 6 for x86_64.
        (SSE_REGPARM_MAX): Set to 16 for x86_64.
        * i386.c (hard_regno_mode_ok): QImodes can be in all general purpose
        registers.

        * (patterns that does use upper halves): Update constraints
        'q' to 'Q' and 'r' to 'R'.
        (cmpqi_ext_1): Disable for 64bit.
        (cmpqi_ext_3_insn): Likewise.
        (movqi_extzv_1): Likewsie.
        (addqi_ext_1): Liekwsie
        (testqi_ext_1): Liekwsie
        (andqi_ext_1): Liekwsie
        (xorqi_ext_1): Liekwsie
        (cmpqi_ext_1_rex64): New.
        (cmpqi_ext_3_insn_rex64): Likewise.
        (movqi_extzv_1_rex64): Likewsie.
        (addqi_ext_1_rex64): Liekwsie
        (testqi_ext_1_rex64): Liekwsie
        (andqi_ext_1_rex64): Liekwsie
        (xorqi_ext_1_rex64): Liekwsie

2001-03-11  Zack Weinberg  <zackw@stanford.edu>

        * configure.in: Move check for unsigned enumerated bitfields
        to macro in aclocal.m4.  Disable it for now.
        * configure, config.in: Regenerate.
        * system.h: Don't do anything with ONLY_INT_FIELDS.  Use the
        unsigned-int form of ENUM_BITFIELD() unless being compiled by GCC.
        * varasm.c (struct rtx_const): Use ENUM_BITFIELD().  Move enum
        kind above its first use.

        * config/xm-interix.h, config/alpha/xm-alpha.h,
        config/i370/xm-linux.h, config/i386/xm-beos.h,
        config/i386/xm-mingw32.h, config/mips/xm-mips.h,
        config/pa/xm-pa.h, config/pa/xm-pa64hpux.h,
        config/rs6000/xm-beos.h, config/rs6000/xm-sysv4.h,
        Don't define ONLY_INT_FIELDS under any circumstances.

        * config/pa/xm-pa.h: Don't define __BSD_NET2__.

        * config/pa/xm-pahpux.h, config/pa/xm-papro.h,
        config/sparc/xm-sysv4.h: Delete - now identical with some
        other xm header.
        * config.gcc (hppa targets): Replace xm-pahpux.h and
        xm-papro.h with implicit xm-pa.h.
        (sparc targets): Replace xm-sysv4.h with implicit or explicit
        xm-sparc.h.

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

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

2001-03-11  Zack Weinberg  <zackw@stanford.edu>

        * config.gcc: Where xm-host.h used to include another
        xm-host.h, list the nested header directly in xm_file.  Remove
        references to deleted files.  Can now use sparc/xm-sp64.h for
        sparcv9-*-solaris*.

        * config/xm-linux.h, config/arm/xm-linux.h,
        config/i386/xm-dos.h, config/i386/xm-gnu.h,
        config/i386/xm-linux.h, config/i386/xm-openbsd.h,
        config/i860/xm-fx2800.h, config/m68k/xm-atari.h,
        config/m68k/xm-linux.h, config/m68k/xm-sun3.h,
        config/sparc/xm-linux.h, config/sparc/xm-sysv4-64.h:
        Delete.

        * config/alpha/xm-alpha-interix.h: Don't include alpha/xm-alpha.h.
        * config/mips/xm-iris5.h: Don't include mips/xm-mips.h.  Don't
        bother to wrap #undef in #ifdef.
        * config/pa/xm-linux.h, config/rs6000/xm-sysv4.h:
        Don't include xm-linux.h.
        * config/sparc/xm-sp64.h: Don't include sparc/xm-sparc.h.

        * configure.in: Wrap regexps using [] in changequote block.
        Use expr : not echo | grep.  Simplify regexps.
        * configure: Regenerate.

        56 xm-files remain, 22 xm-arch.

2001-03-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * mips-tfile.c: Cast arg to PTR when specifier is HOST_PTR_PRINTF.
        (__proto, PTR_T, CPTR_T): Delete, use PARAMS/PTR instead.
        (local_index, local_rindex): Delete, use strchr/strrchr instead.
        (copy_object): Fix format specifier vs argument mismatch.

        * mips-tdump.c: Make local functions static.
        (rindex): Don't #undef.
        (__proto, PTR_T, CPTR_T): Delete, use PARAMS/PTR instead.
        (fatal, fancy_abort): Delete.
        (read_seek): Avoid signed/unsigned compare.

Sun Mar 11 17:01:41 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * combine.c (try_combine): Fix error in change to try original
        register.
        (gen_rtx_combine): Do same as gen_rtx for now.

2001-03-11  Zack Weinberg  <zackw@stanford.edu>

        * configure.in: AC_SUBST xm_defines.
        * configure: Regenerate.
        * Makefile.in: Set DEFINES=$(xm_defines) when building
        tconfig.h.

2001-03-11  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cppfiles.c (INCLUDE_LEN_FUDGE, ENOMEM): Delete.
        (cpp_included, find_include_file): Update.
        (_cpp_compare_file_date): Make else unconditional.

2001-03-10  kaz Kojima <kkojima@rr.iij4u.or.jp>

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

2001-03-10  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 22:42:05 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.

2001-03-10  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * system.h (malloc, realloc, calloc, strdup, bzero, bcmp, rindex):
        #undef token before poisoning it.

2001-03-10  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * alpha.c (check_float_value): Use memcpy, not bcopy.

        * m32r.c (m32r_sched_reorder): Likewise.

        * vax.c (check_float_value): Likewise.

2001-03-10  Neil Booth  <neil@daikokuya.demon.co.uk>

        * toplev.c (file_name_nondirectory): Remove.
        * toplev.h: Similarly.
        * dwarf2out.c (compute_section_prefix): Use lbasename instead
        of file_name_nondirectory.

Sat Mar 10 10:36:45 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * mips-tdump.c (read_seek): Call xmalloc, not malloc.
        * mips-tfile.c: Don't #undef rindex; not used.

Sat Mar 10 14:34:59 CET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.h (DBX_REGISTER_NUMBER): Return proper values for 64bits.
        (dbx64_register_map): Declare.
        (RETURN_ADDR_RTX): Fix for 64bit.
        (DWARF_FRAME_RETURN_COLUMN): Set to 16 for 64bit.
        (INCOMING_FRAME_SP_OFFSET): Set to 8.
        * i386.c (dbx64_register_map): New global array.
        * beos-elf.h, freebsd.h, i386-interix.h, i386elf.h,
        linux.h (DBX_REGISTER_REGNUMBER): Use dbx64_register_map
        for 64bits.

2001-03-10  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cppfiles.c (search_from): Use lbasename.
        * mkdeps.c (deps_add_default_target): Use lbasename.

2001-03-09  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * fixinc/server.c (load_data, run_shell): Use xmalloc, xrealloc &
        xcalloc in lieu of malloc, realloc & calloc.

        * gencheck.c (xmalloc): Use really_call_malloc, not malloc.

        * gengenrtl.c (xmalloc): Likewise.

        * gensupport.c (xcalloc, xrealloc, xmalloc): Use the
        really_call_* memory allocation routines.

        * stmt.c (check_for_full_enumeration_handling): Use
        really_call_calloc, not calloc.

        * system.h (really_call_malloc, really_call_calloc,
        really_call_realloc): Define.
        (malloc, realloc, calloc, strdup, bzero, bcmp, rindex): Poison.

Fri Mar  9 18:39:19 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.

2001-03-09  Joseph S. Myers  <jsm28@cam.ac.uk>

        * invoke.texi: Fix typo.
        * gcc.1: Regenerate.

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.
        * configure: Regenerate.
        * mkconfig.sh: New helper script, from code removed from
        configure.in.
        * Makefile.in: Zap all MALLOC variables - no longer used
        anywhere, and malloc.c doesn't exist.
        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.

        * config.gcc: Zap references to deleted files.
        * ggc-none.c: Don't include rtl.h or tm_p.h.

        * config/i386/xm-beos.h, config/i386/xm-dgux.h,
        config/i386/xm-djgpp.h, config/i386/xm-dos.h,
        config/i386/xm-gnu.h, config/i386/xm-i386-interix.h,
        config/i386/xm-linux.h, config/i386/xm-linux.h,
        config/i386/xm-next.h, config/i386/xm-openbsd.h,
        config/i386/xm-sun.h, config/i386/xm-sysv3.h:
        Don't include i386/xm-i386.h.

        * config/elxsi/xm-elxsi.h, config/i386/xm-bsd386.h,
        config/i386/xm-i386.h, config/i860/xm-i860.h,
        config/i960/xm-i960.h, config/mcore/xm-mcore.h,
        config/mn10300/xm-mn10300.h, config/ns32k/xm-ns32k.h,
        config/pj/xm-pj.h, config/sh/xm-sh.h, config/v850/xm-v850.h:
        Delete (empty except comments, #includes of other deleted
        files, and macros used nowhere).

Fri Mar  9 20:05:27 CET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.h (MAX_WCHAR_TYPE_SIZE): New constant to keep tradcpp
        independent on TARGET_FLAGS.

Fri Mar  9 19:52:52 CET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.h (FIRST_PSEUDO_REGISTER): Set to 53.

        (FIXED_REGISTERS, CALL_USED_REGISTERS, REG_ALLOC_ONES): Add
        extended ones.
        (CONDITIONAL_REGISTER_USAGE): Set proper values according to
        TARGET_64BIT.
        (FIRST_REX_INT_REG, LAST_REX_INT_REG, FIRST_REX_SSE_REG,
        LAST_REX_SSE_REG): define.
        (enum reg_class): Add 'LEGACY_REGS'
        (REG_CLASS_CONTENTS): Likewise; add extended registers.
        (SSE_REGNO_P): Recognize extended registers.
        (ANY_QI_REG_P, REX_INT_REGNO_P, REX_INT_REG_P): New.
        (REG_CLASS_FROM_LETTER): Add 'R' and 'Q'.
        (REGNO_OK_FOR_INDEX_P, REGNO_OK_FOR_BASE_P,
        REG_OK_FOR_BASE_NONSTRICT_P): Recognize REX registers.
        (REG_OK_FOR_STRREG_NONSTRICT_P, REG_OK_FOR_STRREG_STRICT_P,
         REG_OK_FOR_STRREG_P): Remove.
        (HI_REGISTER_NAMES): Add extended registers.
        (ADDITIONAL_REGISTER_NAMES): Likewise.
        (QI_REGISTER_NAMES): Add 8bit extended registers.
        (DEBUG_REG): Support extended registers.
        * i386.c (regclass_map): Add extended registers.
        (dbx_register-map): Likewise.
        (svr4_dbx_register_map): Likewise.
        (print_reg): Support extended registers.
        (print_operand): Support 64bit operands.

Fri Mar  9 19:37:46 CET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.h (LIBGCC2_LONG_DOUBLE_TYPE_SIZE): Set to 128bit for x86_64
        (BOOL_TYPE_SIZE, SHORT_TYPE_SIZE, INT_TYPE_SIZE,
         FLOAT_TYPE_SIZE, LONG_TYPE_SIZE, MAX_LONG_TYPE_SIZE,
         DOUBLE_TYPE_SIZE, LONG_LONG_TYPE_SIZE): New constants.
        (BITS_PER_WORD, UNITS_PER_WORD, POINTER_SIZE, PARM_BOUNDARY,
         STACK_BOUNDARY): Set properly for 64bits.
        (MAX_BITS_PER_WORD, MIN_UNITS_PER_WORD): New constants.
        (EMPTY_FIELD_BOUNDARY): Define using BITS_PER_WORD.
        (BIGGEST_FIELD_ALIGNMENT): Set to 128 for 64bits.
        (MOVE_MAX): Set to 16.
        (MOVE_MAX_PIECES): 8 for 64bit.
        (Pmode): Set to SImode.

Fri Mar  9 09:00:36 2001  Mike Stump  <mrs@wrs.com>

        * cselib.c (hash_rtx): Ensure that hash isn't zero upon return.

Fri Mar  9 17:38:08 CET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.h (mask_64bit): New constant.
        (target_64bit): New macro.
        (target_options): Add '64'/'32'
        (target_default): Define.
        * cygwin.h freebsd-aout.h i386-interix.h i386.h i386elf.h isc.h
        isccoff.h netbsd.h next.h openbsd.h p sco.h sco5.h scodbx.h sequent.h
        unix.h win32.h (TARGET_DEFAULT): Rename to TARGET_SUBTARGET_DEFAULT.

Thu Mar  8 23:36:56 2001  Jeffrey A Law  (law@cygnus.com)

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

Thu Mar  8 23:29:37 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  Stan Shebs  <shebs@apple.com>

        * objc/objc-act.c: Fix old typos in comments, add comments for
        various functions.
        (hash_init): Fix file name in error message.
        (hash_enter): Ditto.
        (hash_add_attr): Ditto.
        (continue_class): Ditto.

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.

2001-03-08  Richard Henderson  <rth@redhat.com>

        * configure.in (HAVE_AS_LEB128): New assembler check.
        * configure, config.in: Rebuilt.

Thu Mar  8 19:54:04 CET 2001  Jan Hubicka  <jh@suse.cz>

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

2001-03-08  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * config/ns32k/xm-pc532-min.h, config/we32k/xm-we32k.h: Delete
        references to the MAXPATHLEN macro.

        * config/alpha/xm-alpha.h, config/arm/xm-arm.h,
        config/i386/xm-cygwin.h, config/xm-linux.h: Delete references to
        the POSIX macro.

        * config/i386/xm-gnu.h, config/xm-gnu.h,
        config/alpha/xm-openbsd.h, config/i386/xm-openbsd.h,
        config/m68k/xm-openbsd.h, config/mips/xm-openbsd.h,
        config/sparc/xm-openbsd.h, config/xm-openbsd.h: Delete empty
        and/or unused files.

        * config.gcc: Define POSIX in xm_defines as appropriate in lieu of
        doing so in various xm-*.h files.

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  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * config/i370/xm-mvs.h, config/i370/xm-oe.h,
        config/i386/xm-beos.h, config/i386/xm-mingw32.h,
        config/m88k/xm-m88k.h, config/mips/xm-iris6.h,
        config/mips/xm-openbsd.h, config/pa/xm-pa64hpux.h,
        config/pa/xm-pahpux.h, config/rs6000/xm-beos.h,
        config/rs6000/xm-darwin.h, config/rs6000/xm-mach.h,
        config/rs6000/xm-rs6000.h, config/xm-interix.h: Delete references
        to the USG macro.

        * config/vax/xm-vaxv.h, config/a29k/xm-unix.h,
        config/i370/xm-i370.h, config/i386/xm-dgux.h,
        config/i386/xm-sun.h, config/i386/xm-sysv3.h,
        config/m68k/xm-tower.h, config/m68k/xm-aux.h,
        config/m68k/xm-hp320.h, config/m68k/xm-amix.h,
        config/m68k/xm-altos3068.h, config/m68k/xm-mot3300.h,
        config/m68k/xm-m68kv.h, config/m88k/xm-openbsd.h,
        config/mips/xm-nws3250v4.h, config/mips/xm-sysv.h,
        config/mips/xm-iris3.h, config/mips/xm-iris4.h, config/xm-svr3.h,
        config/xm-svr4.h, config/sparc/xm-pbd.h, config/clipper/xm-clix.h:
        Delete unused and/or empty files.

        * config.gcc: Define USG in xm_defines as appropriate.  Define
        POSIX in lieu of xm-svr4.h.  Delete all references to the SVR3
        macro.  Remove deleted xm-* files from $xm_files variable.

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  Andrew MacLeod  <amacleod@redhat.com>

        * config/a29k/a29k.c (print_operand): Free a29k_last_prologue_insn
        after its emitted.
        (output_prologue): Use xmalloc not oballoc.
        (output_epilog): Free a29k_first_epilogue_insn when finished.
        * confif/a29k/a29k.h (PREDICATE_CODES): Remove shift_constant_operand.

2001-03-07  Brad Lucier  <lucier@math.purdue.edu>

        * builtins.c (expand_builtin_mathfn): Check
        flag_unsafe_math_optimizations, not flag_fast_math.
        (expand_builtin): Likewise
        * combine.c (combine_simplify_rtx): Likewise.
        (simplify_if_then_else): Likewise.
        * cse.c (fold_rtx): Likewise.
        * flags.h: Remove flag_fast_math.  Add
        flag_unsafe_math_optimizations and flag_trapping_math.
        * fold-const.c (negate_expr): Check
        flag_unsafe_math_optimizations, not flag_fast_math.
        (invert_truthvalue): Likewise.
        (fold): Likewise.  Before associating operands, check that
        code == MULT_EXPR, not code != MULT_EXPR.
        * ifcvt.c (noce_try_minmax): Check
        flag_unsafe_math_optimizations, not flag_fast_math.
        (noce_operand_ok): Check flag_trapping_math, not flag_fast_math.
        * invoke.texi: Document -funsafe-math-optimizations and
        -fno-trapping-math.  Change documentation for -ffast-math.
        * jump.c (reversed_comparison_code_parts): Likewise.
        (rtx_equal_for_thread_p): Likewise.
        * optabs.c (emit_conditional_move): Likewise.
        * simplify-rtx.c (simplify_binary_operation): Likewise.
        (simplify_relational_operation): Likewise.
        (simplify_ternary_operation): Likewise.
        * toplev.c: Remove flag_fast_math.  Add flag_trapping_math and
        flag_unsafe_math_optimizations.  Remove fast-math entry from f_options.
        Add trapping-math and unsafe-math-optimizations entries to f_options.
        (set_fast_math_flags): New, sets flags for -ffast-math.
        (set_no_fast_math_flags): New, sets flags for -fno-fast-math.
        (decode_f_option): Add code to handle -ffast-math and -fno-fast-math.
        * toplev.h: Declare set_fast_math_flags and set_no_fast_math_flags.

        * config/alpha/alpha.c (alpha_emit_conditional_branch): Likewise.
        (alpha_emit_conditional_move): Initialize local_fast_math to
        flag_unsafe_math_optimizations, not flat_fast_math.
        * config/c4x/c4x.c (c4x_override_options): Call set_fast_math_flags
        instead of setting flag_fast_math to 1.
        * config/convex/convex.md: Check flag_unsafe_math_optimizations,
        not flag_fast_math.
        * config/i386/i386.c (override_options): Likewise
        * config/i386/i386.md: Likewise.
        * config/m68k/m68k.md: Likewise.
        * config/mips/mips.md: Likewise.
        * config/rs6000/rs6000.c (validate_condition_mode): Likewise.
        (rs6000_generate_compare): Likewise.

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

        * Makefile.in: Set RANLIB to @RANLIB@.
        Remove RANLIB_TEST.

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

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

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

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

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

        * emit-rtl.c (remove_unnecessary_notes): Verify proper nesting
        of block notes and exception handling notes.

        * lists.c (init_EXPR_INSN_LIST_cache): Don't check initialized.
        * toplev.c (rest_of_compilation): Call init_EXPR_INSN_LIST_cache ...
        (compile_file): ... here.

2001-03-06  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * fixinc/Makefile.in (FIXINC_DEFS): Add -DHAVE_CONFIG_H.

        * fixinc/gnu-regex.c: Don't include auto-host.h since we get
        config.h now.  Include libiberty.h to handle alloca.

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  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  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  Krister Walfridsson  <cato@df.lth.se>

        * dwarf2asm.c (dw2_asm_output_delta): Fix smallest_mode_for_size call.

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

        * cppinternals.texi: Update.

2001-03-06  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * 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/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-i386.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-lynx.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: Delete HOST_BITS_PER_* definitions which
        match the defaults provided in hwint.h.

        * config/i386/xm-lynx.h, config/m68k/xm-lynx.h,
        config/sparc/xm-lynx.h, config/xm-std32.h: Delete files.

        * config.gcc (xm_file): Don't set to files which are deleted.

        * hwint.h: Provide default values for HOST_BITS_PER_*.  No longer
        guard this file against these macros being undefined.

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

        * objc/objc-act.c (objc_add_static_instance): Set DECL_INITIAL
        and DECL_DEFER_OUTPUT on the decl we create, before calling
        rest_of_decl_compilation.

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

        * aclocal.m4 (AM_GNU_GETTEXT): Don't AC_REQUIRE
        AC_FUNC_ALLOCA.
        * configure, config.in: Regenerate.
        * config.gcc: Remove references to deleted files.

        * genattr.c, genattrtab.c, genextract.c, genoutput.c,
        genrecog.c, rtl.c: Do not use alloca anywhere.

        * Makefile.in, build-make, system.h, config/x-interix,
        config/x-svr4, config/xm-interix.h, config/xm-openbsd.h,
        config/alpha/xm-alpha.h, config/alpha/xm-vms.h,
        config/arc/xm-arc.h, config/arm/xm-arm.h,
        config/d30v/xm-d30v.h, config/dsp16xx/xm-dsp16xx.h,
        config/h8300/xm-h8300.h, config/i370/x-oe,
        config/i370/xm-linux.h, config/i386/x-aix, config/i386/x-beos,
        config/i386/x-ncr3000, config/i386/x-sco5,
        config/i386/xm-dgux.h, config/i860/x-sysv4,
        config/i960/xm-i960.h, config/m32r/xm-m32r.h,
        config/m68k/x-crds, config/m68k/x-dpx2, config/m68k/x-hp320,
        config/m68k/x-hp320g, config/m69k/x-mot3300,
        config/m68k/x-mot3300-gas, config/m68k/xm-amix.h,
        config/m68k/xm-hp320.h, config/m68k/xm-m68kv.h,
        config/m68k/xm-mot3300.h, config/m88k/x-dolph,
        config/m88k/x-sysv4, config/m88k/x-tekXD88,
        config/m88k/xm-m88k.h, config/mcore/xm-mcore.h,
        config/mips/x-iris, config/mips/x-iris3,
        config/mips/x-sni-svr4, config/mips/x-sysv,
        config/mips/xm-iris6.h, config/mips/xm-mips.h,
        config/mips/xm-nws3250v4.h, config/pa/x-hpux,
        config/pa/x-pa-mpeix, config/pa/xm-pa.h,
        config/pa/xm-pa64hpux.h, config/pa/xm-pahpux.h,
        config/pa/xm-papro.h, config/romp/xm-romp.h,
        config/rs6000/x-aix31, config/rs6000/x-aix41,
        config/rs6000/x-beos, config/rs6000/x-lynx,
        config/rs6000/x-mach, config/rs6000/x-rs6000,
        config/rs6000/x-sysv4, config/rs6000/xm-rs6000.h,
        config/rs6000/xm-sysv4.h, config/sh/xm-sh.h,
        config/sparc/x-sysv4, config/sparc/xm-linux.h,
        config/sparc/xm-pbd.h, config/sparc/xm-sparc.h,
        config/vax/xm-vms.h: Eradicate all references to alloca and
        related stuff.

        * config/xm-alloca.h, config/clipper/x-clix,
        config/i386/xm-sysv4.h, config/i860/x-fx2800,
        config/i860/x-sysv3, config/m88k/x-sysv3,
        config/sparc/xm-sol2.h, config/we32k/x-we32k: Delete
        (contained only alloca related hacks).

        * config/i386/xm-beos.h, config/rs6000/xm-beos.h: Just define
        USE_C_ALLOCA.

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

        * invoke.texi: Document __FAST_MATH__.

2001-03-05  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * crtstuff.c: Restore include of auto-host.h.

2001-03-05  Fergus Henderson  <fjh@cs.mu.oz.au>

        Put main() in a separate file, so that the language
        front-end can use a different main().

        * main.c: New.
        * toplev.c: (main): Rename as toplev_main.
        * toplev.h: Declare toplev_main.
        * Makefile.in (OBJS): add toplev.o.
          (BACKEND): remove toplev.o, add main.o.

2001-03-04  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cppfiles.c (search_from): Special case the empty string.

2001-03-04  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cppfiles.c (_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 (struct cpp_reader): Delete done_initialising.
        (CPP_PREV_BUFFER): Delete.
        * cppinit.c (cpp_start_read): Don't set done_initialising.
        * cpplex.c (parse_string): Guarantee null-termination.
        (_cpp_equiv_toklists): Remove.
        * cpplib.c (glue_header_name): Null-terminate.
        (do_line): Don't leak memory.
        * cpplib.h (BT_WEAK): Delete.
        * cppmain.c (cb_ident): Strings are now null-terminated.

2001-03-04  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  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>

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

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.

Sat Mar  3 19:47:13 CET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.c (ix86_expand_fp_compare): Delay creating of scratch register
        until when it is really needed.
        (ix86_expand_compare): Update call of ix86_expand_fp_compare.
        * i386.h (PREDICATE_CODES): Add all codes for sse_comparison_operator
        * i386.md (float?i?f splitter): Don't force source operand to memory
        for SSE.
        (sse_movdfcc): Fix constraint.
        (sse_movdfcc splitter): Handle properly the second alternative.

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.
        * c-lex.c (lex_number): Update.

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

        * dwarf2out.c (output_call_frame_info): Fix augmentation length.

Sat Mar  3 04:17:17 2001  J"orn Rennecke <amylaar@redhat.com>

        * combine.c (try_combine): If split with mode-changed scratch
        register didn't work, try the original mode.

Sat Mar  3 03:46:47 2001  J"orn Rennecke <amylaar@redhat.com>

        * tm.texi: Change STRUCT_FORCE_BLK to MEMBER_TYPE_FORCES_BLK.
        * config/c4x/c4x.h: Likewise.
        * stor-layout.c (compute_record_mode): Likewise.
        (layout_type, case ARRAY_TYPE): Use MEMBER_TYPE_FORCES_BLK.

2001-03-02  Zack Weinberg  <zackw@stanford.edu>

        * configure.in: Kill tm.h.  Include the files in the $tm_file
        list in all three of config.h, hconfig.h, tconfig.h, after the
        relevant set of xm_files.  Put TARGET_CPU_DEFAULT in all
        three, include insn-codes.h in all three (#ifndef GENERATOR_FILE).
        * configure: Regenerate.
        * Makefile.in (clean): Don't delete tm.h.

        * system.h: If SUCCESS_EXIT_CODE and FATAL_EXIT_CODE are not
        defined, set them from EXIT_SUCCESS and EXIT_FAILURE.  If
        those are not defined, set SEC and FEC to 0 and 1.
        * gcc.texi: Update to match.

        * crtstuff.c: Include tconfig.h, not auto-host.h and tm.h.
        * config/fp-bit.c, config/m68k/aux-crt2.asm,
        config/m68k/aux-crtn.asm, config/m68k/aux-mcount.c:
        Include tconfig.h, not tm.h.

        * 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/avr/xm-avr.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-linux.h,
        config/i386/xm-i386.h, config/i860/xm-i860.h,
        config/i960/xm-i960.h, config/ia64/xm-ia64.h,
        config/m32r/xm-m32r.h, config/m68hc11/xm-m68hc11.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/pdp11/xm-pdp11.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/we32k/xm-we32k.h:
        Don't include tm.h.
        Don't define SUCCESS_EXIT_CODE or FATAL_EXIT_CODE.

        * config/i370/xm-i370.h, config/i370/xm-mvs.h,
        config/i370/xm-oe.h: Don't include tm.h.  Don't define
        SUCCESS_EXIT_CODE.
        * config/vax/xm-vms.h: Don't include tm.h.

        * config/xm-lynx.h, config/avr/xm-avr.h,
        config/fr30/xm-fr30.h, config/pdp11/xm-pdp11.h,
        Delete; made empty by above changes.
        * config/i386/xm-lynx.h, config/m68k/xm-lynx.h,
        config/rs6000/xm-lynx.h, config/sparc/xm-lynx.h:
        Don't include config/xm-lynx.h or tm.h.

        * config/xm-gnu.h: Don't include fcntl.h.
        * config/sparc/xm-lynx.h: Don't include sys/types.h and
        sys/wait.h.
        * config/clipper/xm-clix.h, config/vax/xm-vax.h: Don't define isinf.

2001-03-02  Richard Henderson  <rth@redhat.com>

        * tm.texi (File Framework): Document UNALIGNED_SHORT_ASM_OP,
        UNALIGNED_INT_ASM_OP, and UNALIGNED_DOUBLE_INT_ASM_OP.

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.

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

        * cselib.c (hash_rtx): Cast enums to unsigned int.

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).
        * 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.

Fri Mar  2 11:59:43 CET 2001  Jan Hubicka  <jh@suse.cz>

        * ifcvt.c (noce_operand_ok): Handle properly unarry operations.

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

        * cppfiles.c (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.
        * cpphash.h (struct cpp_buffer): Delete actual_dir.  New members
        search_from and dir.
        (struct cpp_reader): Remove actual_dirs.
        * cppinit.c (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.h (struct cpp_options): Similarly.

2001-03-01  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'.

2001-03-01  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.

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

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

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  Diego Novillo  <dnovillo@redhat.com>

        * c-semantics.c (prune_unused_decls): Return error_mark_node
        instead of (tree) 1 to stop traversing the tree chain.

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

        Fix a problem introduced by Kenner's Feb 18 change.
        * toplev.c (rest_of_compilation): Disable flag_cse_follow_jumps and
        flag_cse_skip_blocks only temporarily, not for ever.

Thu Mar  1 09:49:58 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.
        (gen_nop_type): New function.
        (ia64_emit_nops): New function.
        (ia64_reorg): Call it.
        (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  DJ Delorie  <dj@redhat.com>

        * config/m68k/m68k.h (MOVE_BY_PIECES_P): Avoid pushing bytes,
        since that doesn't work the way gcc wants on a generic m68k.

2001-02-28  Richard Henderson  <rth@redhat.com>

        * caller-save.c (save_call_clobbered_regs): Fix typo in
        comparison last change.

Wed Feb 28 19:31:42 CET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.c (pentium4_cost): New.
        (m_PENT4): New macro.
        (x86_push_memory, x86_movx,x86_cmove, x86_deep_branch, x86_use_sahf
        x86_sub_esp_4, x86_sub_esp_8, x86_add_esp_4, x86_add_esp_8
        x86_integer_DFmode_moves, x86_partial_reg_dependency,
        x86_memory_mismatch_stall): Add Pentium4
        (x86_use_q_reg, x86_use_any_reg): Kill.
        (override_options): Add pentium4.
        (incdec_operand): Return 0 for pentium4.
        (ix86_issue_rate): Add PROCESSOR_PENTIUM4 and PROCESSOR_ATHLON.
        * i386.h (x86_use_q_reg, x86_use_any_reg): Kill.
        (TARGET_PENTIUM4): Define.
        (enum processor_type): Add PROCESSOR_PENTIUM4.
        (CPP_CPU_DEFAULT_SPEC): Add pentium4 support.
        * i386.md (attribute "cpu"): Add pentium4.
        * invoke.texi (march): Add pentium4.

Wed Feb 28 19:28:06 CET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.md (sse_mov?fcc*): New patterns and splitters.
        * i386.c (ix86_expand_movcc): Work post-reload; recognize
        the SSE based conditional moves.

Wed Feb 28 19:18:23 CET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.md (attribute mode): Add "TI".
        (movsf_1): Add pxor support; remove constant propagation splitter.
        (movdf_integer): Likewise.
        (movdf_nointeger): Likewise.
        (movxf constant prop splitter): Handle all modes; update for SSE.
        * i386.h (CONST_DOUBLE_OK_FOR_LETTER): Add 'H' for SSE constants.
        * i386.c (standard_80387_constant_p): Rewrite.
        (standard_sse_constant_p): New.
        * i386-protos.h (standard_sse_constant_p): New.

Wed Feb 28 19:05:37 CET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.md (sse_setccsf, sse_setccdf): New.
        (sse_cmp* patterns): Use '%D' instead of outputtting condition
        flag directly.
        * i386.c (sse_comparison_operator): Accept the supported unordered
        comparses; be ready for fast_math.
        (print_operand): Support 'D'.

Wed Feb 28 18:54:51 CET 2001  Jan Hubicka  <jh@suse.cz>

        * jump.c (reversed_comparison_code): Kill.

Wed Feb 28 18:50:15 CET 2001  Jan Hubicka  <jh@suse.cz>

        * toplev.c (rest_of_compilation): Do post-reload splitting unconditionally
        for STACK_REGS

Wed Feb 28 18:47:37 CET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.md (sse_andti3, sse_nandti_3, sse_xorti3): Add SSE2 versions;
        add missing '%' in constraints.

Wed Feb 28 17:24:24 CET 2001  Jan Hubicka  <jh@suse.cz>

        * c-common.c (build_common_tree_nodes): Build intTI_type_nodes
        for HOST_BITS_PER_WIDE_INT == 32 too.

Wed Feb 28 17:22:35 CET 2001  Jan Hubicka  <jh@suse.cz>

        * caller-save.c (reg_save_code, reg_restore_code):  Index by mode, not
        NREGS.
        (insert_save, insert_restore): New parameter save_mode.
        (init_caller_save): Update initialization of reg_save_code
        and reg_restore_code.
        (save_call_clobbered_regs):  Compute save_modes and update calls to
        reg_save_code and reg_restore_code.
        (insert_restore):  Unsignetize numbers; use save_modes to choose mode
        of spill; update use of reg_restore_code.
        (insert_save):  Likewise.
        * i386.h (HARD_REGNO_CALLER_SAVE_MODE): Update.
        * c4x.h (HARD_REGNO_CALLER_SAVE_MODE): Update.
        * regs.h (HARD_REGNO_CALLER_SAVE_MODE): Likewise.

Wed Feb 28 17:19:28 CET 2001  Jan Hubicka  <jh@suse.cz>

        * ifcvt.c (noce_emit_store_flag, noce_try_store_flag_constants,
        noce_try_store_flag_inc, noce_try_store_flag_mask,
        noce_try_cmove_arith):
        Use reversed_comparison_code instead of reverse_comparison and
        can_reverse_comparison_p.

Wed Feb 28 17:17:29 CET 2001  Jan Hubicka  <jh@suse.cz>

        * jump.c (reversed_comparison_code_parts): Allow reversal of
        unordered compares in -ffast-math mode; reverse ordered compares
        for FP even w/o -ffast-math.

2001-02-27  Richard Henderson  <rth@redhat.com>

        * print-rtl.c (print_rtx) [i]: Don't print field five on
        NOTEs other than NOTE_INSN_DELETED_LABEL.

2001-02-27  Zack Weinberg  <zackw@stanford.edu>

        * mips/xm-iris4.h: Delete #if 0 block (there since before 1997).
        * pa/xm-linux.h, pa/xm-pa.h, pa/xm-papro.h: Don't declare errno.

2001-02-27  Diego Novillo  <dnovillo@redhat.com>

        * c-common.c (walk_stmt_tree): Visit the chain of the current tree
        even if walk_subtrees is 0.
        * c-semantics.c (prune_unused_decls): Return a non-null value to
        stop traversing the tree chain.

2001-02-27  DJ Delorie  <dj@redhat.com>

        * config/m68k/m68k.c (output_function_prologue): Save the new CFA
        register, *then* define it as the new CFA.

Tue Feb 27 16:49:13 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.

Tue Feb 27 16:01:13 CET 2001  Jan Hubicka  <jh@suse.cz>
                              Fergus Henderson

        * md.texi (min, max): Document

Tue Feb 27 15:51:35 CET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.md (movsf, movdf): Use movaps for reg-reg moves if
        TARGET_PARTIAL_REG_DEPENDENCY.
        (truncdfsf2_1_sse, truncdfsf2_2): Penalize the fpreg->mem case.

Tue Feb 27 15:36:48 CET 2001  Jan Hubicka  <jh@suse.cz>

        * i386.md (mins*, maxs*): New patterns, expanders and splitters.

2001-02-26  Jeffrey Oldham  <oldham@codesourcery.com>

        * mips.c (mips_make_temp_file): Fix thinko in last change.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

        * reload1.c (reload_cse_simplify_set): Fix typo.

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

        * diagnostic.c (_fatal_insn): Decrement errorcount.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

        * tree.h (BLOCK_CHAIN): Use BLOCK_CHECK.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

        * i386.md (extendsfdf2_2): Fix constraints.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

        * regclass.c (init_reg_sets_1): Silence warning.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

        * Makefile.in (DRIVER_DEFINES): Fix quoting.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

        * cppinit.c (append_include_chain): Honor NO_IMPLICIT_EXTERN_C.

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

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

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

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

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

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

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

        * c4x.h (HARD_REGNO_CALL_PART_CLOBBERED): Fix typo.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

        * 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.