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

2001-09-23  Zack Weinberg  <zack@codesourcery.com>

        * errors.h (warning, error, fatal, internal_error): Don't mark
        with ATTRIBUTE_PRINTF_n.
        * toplev.h (internal_error, fatal_io_error, warning, error,
        pedwarn, pedwarn_with_file_and_line, warning_with_file_and_line,
        error_with_file_and_line, sorry, error_for_asm, warning_for_asm):
        Likewise.

Sun Sep 23 18:19:48 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * function.c (pop_function_context_from): var_refs_queue
        and temp slots now in GC memory.
        (mark_function_status, free_after_compilation): Likewise;
        also struct function now in GC memory.
        (assign_stack_temp_for_type): struct temp_slot now in GC memory.
        (combine_temp_slots): Likewise.
        (schedule_fixup_var_refs): var_refs_queue now in GC memory.
        (prepare_function_start): Use GC memory for struct function.
        (mark_temp_slot): Deleted.
        (gcc_mark_struct_function): struct function now in GC memory.

        * fold-const.c (extract_muldiv, case PLUS_EXPR): Only adjust
        code for division, not modulus.

        * rtl.def (MEM): Remove obsolete part of comment.

2001-09-22  Joseph S. Myers  <jsm28@cam.ac.uk>

        * c-format.c (init_function_format_info): Check __builtin_printf
        and __builtin_fprintf even if -ffreestanding.  Check C99 functions
        in gnu89 mode.

Sat Sep 22 09:09:32 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * c-common.c (format_attribute_table): Remove decl.
        * tree.h (format_attribute_table, lang_attribute_table): New decls.
        (lang_attribute_common): Likewise.

        * function.c (fix_lexical_address): Use set_mem_alias_set.
        (expand_function_start): Likewise.
        * config/alpha/alpha.h (SETUP_INCOMING_VARARGS): Likewise.

        * varasm.c (output_constant): Fix unused variable warning.

        * attribs.c: New file, from c-common.c.
        (attribute_tables): Now four elements.
        (format_attribute_table, lang_attribute_common): New variables.
        (init_attributes): Reflect above changes.
        (handle_mode_attribute): Delete check for wider than uintmax.
        * c-common.c: Delete parts moved to attribs.c.
        (enum attrs): Deleted; unused.
        (c_format_attribute_table): New variable.
        (c_common_lang_init): Initialize format_attribute_table with it.
        * c-common.h (decl_attributes): Remove decl.
        * tree.h (decl_attribute): Move it to here.
        * Makefile.in (C_AND_OBJS_OBJS): Add attribs.o.
        (attribs.o): New rule.

2001-09-22  Andreas Jaeger  <aj@suse.de>

        * builtins.c (c_getstr): Remove unused variable.

2001-09-21  Richard Henderson  <rth@redhat.com>

        * reload1.c (reload): Use delete_insn instead of splatting
        NOTE_INSN_DELETED.

2001-09-21  Richard Henderson  <rth@redhat.com>

        * reload.c (push_secondary_reload): Don't check for "=" in output
        constraint after ""->ALL_REGS check.

2001-09-21  Richard Henderson  <rth@redhat.com>

        * predict.c (expected_value_to_br_prob): Use pc_set.

        * optabs.c (init_one_libfunc): Gen a FUNCTION_DECL for use by
        ENCODE_SECTION_INFO; get SYMBOL_REF from make_decl_rtl.

2001-09-21  Richard Henderson  <rth@redhat.com>

        * rtl.h (LCT_RETURNS_TWICE): New.
        * calls.c (emit_call_1): Set current_function_calls_setjmp for
        ECF_RETURNS_TWICE.
        (emit_library_call_value_1): Map LCT_RETURNS_TWICE
        to ECF_RETURNS_TWICE.
        * except.c (sjlj_emit_function_enter): Use LCT_RETURNS_TWICE for
        call to setjmp.

        * unwind-sjlj.c: Invent the setjmp.h declarations if inhibit_libc.

        * config/stormy16/stormy16.h (DONT_USE_BUILTIN_SETJMP): New.
        (JMP_BUF_SIZE): New.

2001-09-21  Richard Henderson  <rth@redhat.com>

        * config/stormy16/stormy16.h (REG_CLASS_FROM_LETTER): Map 'd'
        to R8_REGS.

2001-09-21  Richard Henderson  <rth@redhat.com>

        * tree.def (FDESC_EXPR): New.
        * expr.c (expand_expr): Handle it.
        * varasm.c (initializer_constant_valid_p): Likewise.
        (output_constant): Likewise.
        * defaults.h (TARGET_VTABLE_USES_DESCRIPTORS): New.
        * config/ia64/ia64.h (TARGET_VTABLE_USES_DESCRIPTORS): New.
        (ASM_OUTPUT_FDESC): New.
        * doc/tm.texi: Document the new macros.

21-09-2001  Richard Earnshaw  (reanrsha@arm.com)

        * cfgcleanup.c (merge_blocks_move_successor_nojumps): Don't leave
        ADDR_VEC or ADDR_DIFF_VEC jump insns as part of the basic block
        once merging is complete.

Fri Sep 21 11:20:12 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * integrate.c (allocate_initial_values): Eliminate unused arg warning.

21-09-2001  Richard Earnshaw  (reanrsha@arm.com)

        * cfgcleanup.c (flow_find_cross_jump): Delete any REG_EQUAL notes
        that would be invalid after a merge.

Fri Sep 21 14:24:29 CEST 2001  Jan Hubicka  <jh@suse.cz>

        * basic-block.h (flow_delete_insn, flow_delete_insn_chain): Kill.
        * cfg.c (delete_insn): Rename from ....; use remove_insn; do not
        remove some labels.
        (flow_delete_insn): This one.
        (delete_insn_chain): Rename from ...; do not care labels.
        (flow_delete_insn_chain): ... this one.
        (flow_delete_block): Remove the insns one BB has been expunged.
        (merge_blocks_nomove): Likewise.
        (try_redirect_by_replacing_jump): Use delete_insn[_chain]; do not care
        updating BB boundaries.
        (tidy_fallthru_edge): Likewise.
        (commit_one_edge_insertion): Likewise.
        * cfgbuild.c (find_basic_block): Likewise.
        (find_basic_blocks_1): Likewise.
        * cfgcleanup.c (merge_blocks_move_predecessor_nojumps): Likewise.
        (try_crossjump_to_edge): Likewise.
        (try_optimize_cfg): Likewise.
        * cse.c (delete_trivially_dead_insns): Likewise.
        * df.c (df_insn_delete): Likewise.
        * doloop.c (doloop_modify): Use delete_related_insns.
        * emit-rtl.c (try_split): Likewise.
        (remove_insn): Update BB boundaries.
        * expect.c (connect_post_landing_pads): Use delete_related_insns.
        * flow.c (delete_dead_jumptables): Use delete_insn[_chain]; do not care
        updating BB boundaries.
        (propagate_block_delete_insn): Likewise.
        (propagate_block_delete_libcall): Likewise.
        * function.c (delete_handlers): Use delete_related_insns.
        (thread_prologue_and_epilogue_insns): Likewise.
        * gcse.c (delete_null_pointer_checks): Use delete_related_insns.
        * genpeep.c (gen_peephole): Use delete_related_insns.
        * ifcvt.c (noce_process_if_block): Use delete_insn; do not care updating
        BB boundaries.
        (find_cond_trap): Likewise.
        * integrate.c (save_for_inline): Use delete_related_insns.
        (copy_insn_list): Likewise.
        * jump.c (pruge_linie_number_notes): Likewise.
        (duplicate_loop_exit_test): Likewise.
        (delete_computation): Likewise.
        (delete_related_insn): Rename from ...; use delete_insn
        (delete_insn): ... this one.
        (redirect_jump): Use delete_related_insns.
        * loop.c (scan_loop): Likewise.
        (move_movables): Likewise.
        (find_and_verify_loops): Likewise.
        (check_dbra_loop): Likewise.
        * recog.c (peephole2_optimize): Likewise.
        * reg-stack.c (delete_insn_for_stacker): Remove.
        (move_for_stack_reg): Use delete_insn.
        * regmove.c (combine_stack_adjustments_for_block): Likewise.
        * reload1.c (delete_address_reloads): Use delete_related_insns.
        (fixup_abnormal_edges): Use delete_insn.
        * recog.c (emit_delay_sequence): Use delete_related_insns.
        (delete_from-delay_slot): Likewise.
        (delete_scheduled_jump): likewise.
        (optimize_skip): Likewise.
        (try_merge_delay_insns): Likewise.
        (full_simple_delay_slots): Likewise.
        (fill_slots_from_thread): Likewise.
        (relax_delay_slots): Likewise.
        (make_return_insns): Likewise.
        (dbr_schedule): Likewise.
        * rtl.h (delete_insn): Rename to delete_related_insns.
        (delete_insn, delete_insn_chain): New prototypes.
        * ssa-ccp (sse_fast_dce):  Remove deleting of DEF, as it is done
        by df_insn_delete already.
        * ssa-dce.c (delete_insn_bb): Use delete_insn.
        * ssa.c (convert_from_ssa): Use delete_related_insns.
        * unroll.c (unroll_loop): Likewise.
        (calculate_giv_inc): Likewise.
        (copy_loop_body): Likewise.

        * i386-protos.h (ix86_libcall_value, ix86_function_value,
        ix86_function_arg_regno_p, ix86_function_arg_boundary,
        ix86_return_in_memory, ix86_function_value): Declare.
        * i386.c (x86_64_int_parameter_registers, x86_64_int_return_registers):
        new static valurables.
        (x86_64_reg_class): New enum
        (x86_64_reg_class_name): New array.
        (classify_argument, examine_argument, construct_container,
         merge_classes): New static functions.
        (optimization_options): Enable flag_omit_frame_pointer and disable
        flag_pcc_struct_return on 64bit.
        (ix86_libcall_value, ix86_function_value,
        ix86_function_arg_regno_p, ix86_function_arg_boundary,
        ix86_return_in_memory, ix86_function_value): New global functions.
        (init_cumulative_args): Refuse regparm on x86_64, set maybe_vaarg.
        (function_arg_advance): Handle x86_64 passing conventions.
        (function_arg): Likewise.
        * i386.h (FUNCTION_ARG_BOUNDARY): New macro.
        (RETURN_IN_MEMORY): Move offline.
        (FUNCTION_VALUE, LIBCALL_VALUE): Likewise.
        (FUNCTION_VALUE_REGNO_P): New macro.
        (FUNCTION_ARG_REGNO_P): Move offline.
        (struct ix86_args): Add maybe_vaarg.
        * next.h (FUNCTION_VALUE_REGNO_P): Delete.
        * unix.h (FUNCTION_VALUE_REGNO_P): Delete.

2001-09-21  Hartmut Penner  <hpenner@de.ibm.com>

        * s390.md: Changed attributes for scheduling.
        * s390.c: (s390_adjust_cost, s390_adjust_priority)
        Changed scheduling

2001-09-21  Joseph S. Myers  <jsm28@cam.ac.uk>

        Table-driven attributes.
        * c-decl.c, config/alpha/alpha.c, config/arc/arc.c,
        config/arm/arm.c, config/arm/pe.c, config/avr/avr.c,
        config/avr/avr.h, config/d30v/d30v.h, config/fr30/fr30.h,
        config/h8300/h8300.c, config/i386/cygwin.h, config/i386/winnt.c,
        config/m32r/m32r.c, config/mcore/mcore.c, config/sh/sh.c,
        config/stormy16/stormy16.h, config/v850/v850.c, doc/c-tree.texi,
        doc/tm.texi, ggc-common.c, integrate.c, print-tree.c, tree.c,
        tree.h: Rename DECL_MACHINE_ATTRIBUTES to DECL_ATTRIBUTES.
        * tree.h (struct tree_decl): Change machine_attributes to
        attributes.
        * doc/c-tree.texi: Document that all attributes are now attached
        to decls and types.
        * c-common.c (add_attribute, attrtab, attrtab_idx,
        default_valid_lang_attribute, valid_lang_attribute): Remove.
        (attribute_tables, attributes_initialized,
        c_common_attribute_table, default_lang_attribute_table): New
        variables.
        (handle_packed_attribute, handle_nocommon_attribute,
        handle_common_attribute, handle_noreturn_attribute,
        handle_unused_attribute, handle_const_attribute,
        handle_transparent_union_attribute, handle_constructor_attribute,
        handle_destructor_attribute, handle_mode_attribute,
        handle_section_attribute, handle_aligned_attribute,
        handle_weak_attribute, handle_alias_attribute,
        handle_no_instrument_function_attribute,
        handle_no_check_memory_usage_attribute, handle_malloc_attribute,
        handle_no_limit_stack_attribute, handle_pure_attribute): New
        functions.
        (init_attributes, decl_attributes): Rewrite to implement
        table-driven attributes.
        * c-common.h (enum attribute_flags): Move to tree.h.
        * c-format.c (decl_handle_format_attribute,
        decl_handle_format_arg_attribute): Rename to
        handle_format_attribute and handle_format_arg_attribute.  Update
        for table-driven attributes.
        * c-common.h (decl_handle_format_attribute,
        decl_handle_format_arg_attribute): Remove prototypes.
        (handle_format_attribute, handle_format_arg_attribute): Add
        prototypes.
        * c-decl.c (grokdeclarator): Handle attributes nested inside
        declarators.
        * c-parse.in (setattrs, maybe_setattrs): Remove.
        (maybe_type_quals_setattrs): Rename to maybe_type_quals_attrs.
        Update to handle nested attributes properly.
        (maybe_resetattrs, after_type_declarator,
        parm_declarator_nostarttypename, notype_declarator, absdcl1_noea,
        absdcl1_ea, direct_absdcl1): Update to handle nested attributes
        properly.
        (make_pointer_declarator): Update to handle nested attributes
        properly.
        * doc/extend.texi: Update documentation of limits of attributes
        syntax.  Warn about problems with attribute semantics in C++.
        * target.h (struct target): Remove valid_decl_attribute and
        valid_type_attribute.  Add attribute_table and
        function_attribute_inlinable_p.
        * target-def.h (TARGET_VALID_DECL_ATTRIBUTE,
        TARGET_VALID_TYPE_ATTRIBUTE): Remove.
        (TARGET_ATTRIBUTE_TABLE, TARGET_FUNCTION_ATTRIBUTE_INLINABLE_P):
        Add.
        (TARGET_INITIALIZER): Update.
        * integrate.c (FUNCTION_ATTRIBUTE_INLINABLE_P): Remove default
        definition.
        (function_attribute_inlinable_p): New function.  Check for the
        presence of any machine attributes before using
        targetm.function_attribute_inlinable_p.
        (function_cannot_inline_p): Update.
        * Makefile.in (integrate.o): Update dependencies.
        * doc/tm.texi: Update documentation of target attributes and
        example definition of TARGET_VALID_TYPE_ATTRIBUTE.
        * tree.c (default_valid_attribute_p, valid_machine_attribute):
        Remove.
        (default_target_attribute_table,
        default_function_attribute_inlinable_p): New.
        (lookup_attribute): Update comment to clarify handling of multiple
        attributes with the same name.
        (merge_attributes, attribute_list_contained): Allow multiple
        attributes with the same name but different arguments to appear in
        the same attribute list.
        * tree.h (default_valid_attribute_p): Remove prototype.
        (struct attribute_spec): New.
        (default_target_attribute_table): Declare.
        (enum attribute_flags): Move from c-common.h.  Add
        ATTR_FLAG_TYPE_IN_PLACE.
        (default_function_attribute_inlinable_p): Declare.
        * config/alpha/alpha.c (vms_valid_decl_attribute_p): Remove.
        (TARGET_VALID_DECL_ATTRIBUTE): Don't define.
        (TARGET_ATTRIBUTE_TABLE): Define.
        (vms_attribute_table): New.
        * config/arc/arc.c (arc_valid_decl_attribute): Remove.
        (TARGET_VALID_DECL_ATTRIBUTE): Don't define.
        (TARGET_ATTRIBUTE_TABLE): Define.
        (arc_attribute_table, arc_handle_interrupt_attribute): New.
        * config/arm/arm.c (arm_valid_type_attribute_p,
        arm_valid_decl_attribute_p, arm_pe_valid_decl_attribute_p):
        Remove.
        (TARGET_VALID_TYPE_ATTRIBUTE, TARGET_VALID_DECL_ATTRIBUTE): Don't
        define.
        (TARGET_ATTRIBUTE_TABLE): Define.
        (arm_attribute_table, arm_handle_fndecl_attribute,
        arm_handle_isr_attribute): New.
        * config/avr/avr.c (avr_valid_type_attribute,
        avr_valid_decl_attribute): Remove.
        (TARGET_VALID_DECL_ATTRIBUTE, TARGET_VALID_TYPE_ATTRIBUTE): Don't
        define.
        (TARGET_ATTRIBUTE_TABLE): Define.
        (avr_attribute_table, avr_handle_progmem_attribute,
        avr_handle_fndecl_attribute): New.
        * config/c4x/c4x.c (c4x_valid_type_attribute_p): Remove.
        (TARGET_VALID_TYPE_ATTRIBUTE): Don't define.
        (TARGET_ATTRIBUTE_TABLE): Define.
        (c4x_attribute_table, c4x_handle_fntype_attribute): New.
        * config/h8300/h8300.c (h8300_valid_decl_attribute): Remove.
        (TARGET_VALID_DECL_ATTRIBUTE): Don't define.
        (TARGET_ATTRIBUTE_TABLE): Define.
        (h8300_attribute_table, h8300_handle_fndecl_attribute,
        h8300_handle_eightbit_data_attribute,
        h8300_handle_tiny_data_attribute): New.
        * config/i386/i386-protos.h (ix86_valid_type_attribute_p,
        i386_pe_valid_decl_attribute_p, i386_pe_valid_type_attribute_p):
        Remove prototypes.
        (ix86_handle_dll_attribute, ix86_handle_shared_attribute): New
        declarations.
        * config/i386/i386.c (ix86_valid_type_attribute_p: Remove.
        (TARGET_VALID_TYPE_ATTRIBUTE, TARGET_VALID_DECL_ATTRIBUTE): Don't
        define.
        (TARGET_ATTRIBUTE_TABLE): Define.
        (ix86_attribute_table, ix86_handle_cdecl_attribute,
        ix86_handle_regparm_attribute): New.
        * config/i386/winnt.c (i386_pe_valid_decl_attribute_p,
        i386_pe_valid_type_attribute_p): Remove.
        (ix86_handle_dll_attribute, ix86_handle_shared_attribute): New.
        * config/ia64/ia64.c (ia64_valid_type_attribute): Remove.
        (TARGET_VALID_TYPE_ATTRIBUTE): Don't define.
        (TARGET_ATTRIBUTE_TABLE): Define.
        (ia64_attribute_table): New.
        * config/m32r/m32r.c (m32r_valid_decl_attribute, interrupt_ident1,
        interrupt_ident2, model_ident1, model_ident2): Remove.
        (TARGET_VALID_DECL_ATTRIBUTE): Don't define.
        (TARGET_ATTRIBUTE_TABLE): Define.
        (init_idents): Update.
        (m32r_attribute_table, m32r_handle_model_attribute): New.
        * config/m68hc11/m68hc11.c (m68hc11_valid_type_attribute_p):
        Remove.
        (TARGET_VALID_TYPE_ATTRIBUTE): Don't define.
        (TARGET_ATTRIBUTE_TABLE): Define.
        (m68hc11_attribute_table, m68hc11_handle_fntype_attribute): New.
        * config/mcore/mcore.c (mcore_valid_decl_attribute): Remove.
        (TARGET_VALID_DECL_ATTRIBUTE): Don't define.
        (TARGET_ATTRIBUTE_TABLE): Define.
        (mcore_attribute_table, mcore_handle_naked_attribute): New.
        * config/ns32k/ns32k.c (ns32k_valid_type_attribute_p): Remove.
        (TARGET_VALID_TYPE_ATTRIBUTE): Don't define.
        (TARGET_ATTRIBUTE_TABLE): Define.
        (ns32k_attribute_table, ns32k_handle_fntype_attribute): New.
        * config/rs6000/rs6000.c (rs6000_valid_type_attribute_p): Remove.
        (TARGET_VALID_TYPE_ATTRIBUTE): Don't define.
        (TARGET_ATTRIBUTE_TABLE): Define.
        (rs6000_attribute_table, rs6000_handle_longcall_attribute): New.
        * config/sh/sh.c (sh_valid_decl_attribute): Remove.
        (TARGET_VALID_DECL_ATTRIBUTE): Don't define.
        (TARGET_ATTRIBUTE_TABLE): Define.
        (sh_attribute_table, sh_handle_interrupt_handler_attribute,
        sh_handle_sp_switch_attribute, sh_handle_trap_exit_attribute):
        New.
        * config/stormy16/stormy16.c (stormy16_valid_type_attribute):
        Remove.
        (TARGET_VALID_TYPE_ATTRIBUTE): Don't define
        (TARGET_ATTRIBUTE_TABLE): Define.
        (stormy16_attribute_table, stormy16_handle_interrupt_attribute):
        New.
        * config/v850/v850.c (v850_valid_decl_attribute): Remove.
        (TARGET_VALID_DECL_ATTRIBUTE): Don't define.
        (TARGET_ATTRIBUTE_TABLE): Define.
        (v850_attribute_table, v850_handle_interrupt_attribute,
        v850_handle_data_area_attribute): New.
        * config/v850/v850-c.c (mark_current_function_as_interrupt):
        Return void.  Call decl_attributes instead of
        valid_machine_attribute.

Fri Sep 21 01:49:41 2001  J"orn Rennecke <amylaar@redhat.com>

        * sh-protos.h (sh_pr_n_sets): Declare.
        * sh.c (calc_live_regs): If the initial value for PR has been copied,
        look at the copy to determine if PR needs to be saved.
        sh_pr_n_sets: New function.
        * sh.h (RETURN_ADDR_RTX): Use get_hard_reg_initial_val.
        (ALLOCATE_INITIAL_VALUE): Define.

        * sh.c (initial_elimination_offset):
        Fix RETURN_ADDRESS_POINTER_REGNUM case.

Fri Sep 21 01:13:56 2001  J"orn Rennecke <amylaar@redhat.com>

        * integrate.c (allocate_initial_values): New function.
        * integrate.h (allocate_initial_values): Declare.
        * local-alloc.c (local_alloc): Move call to allocate_reg_info from
        here...
        * reload1.c (reload): And initialization of reg_equiv_memory_loc
        from here...
        * toplev.c (rest_of_compilation): To here.
        Call allocate_initial_values.
        * tm.texi: add description for ALLOCATE_INITIAL_VALUE.

Thu Sep 20 09:00:27 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * ggc-page.c (ggc_marked_p): Properly convert return to boolean.

2001-09-20  DJ Delorie  <dj@redhat.com>

        * c-typeck.c (really_start_incremental_init): Discriminate
        between zero-length arrays and flexible arrays.
        (push_init_level): Detect zero-length arrays and handle them
        like fixed-sized arrays.
        * expr.c (store_constructor): Handle zero-length arrays and
        flexible arrays correctly.
        * doc/extend.texi: Update zero-length array notes.

2001-09-20  Jim Wilson  <wilson@redhat.com>

        * config/ia64/ia64.c (itanium_split_issue): Allow max 2 FP per cycle.
        (insn_matches_slot): Handle TYPE_L and TYPE_X slots when checking
        for issue port conflicts.
        (cycle_end_fill_slots): TYPE_L instructions take two slots.

2001-09-20  Andrew MacLeod  <amacleod@redhat.com>

        * testsuite/gcc.c-torture/execute/990208-1.x: New. XFAIL at -O3
        on ia64.

Thu Sep 20 09:00:27 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * fold-const.c (hashtab.h): Include.
        (int_const_binop): Remove FORSIZE arg and compute from type; all
        callers changed.
        Call size_int_type_wide for all single-word constants.
        (size_htab_hash, size_htab_eq): New functions.
        (size_int_type_wide): Rework to use hash table.
        * ggc-common.c (hashtab.h): Include.
        (struct d_htab_root): New struct.
        (d_htab_roots): New variable.
        (ggc_add_deletable_htab, ggc_htab_delete): New functions
        (ggc_mark_roots): Handle deletable htabs.
        * ggc-page.c (ggc_marked_p): New function.
        * ggc-simple.c (ggc_marked_p): Likewise.
        * ggc.h: Reformatting throughout.
        (ggc_marked_p, ggc_add_deletable_htab): New declarations.
        * tree.c (init_obstacks): Make type_hash_table a deletable root.
        (type_hash_add): Allocate struct type_hash from GC memory.
        (mark_hash_entry, mark_type_hash): Deleted.
        (type_hash_marked_p, type_hash_mark): New functions.
        * Makefile.in (ggc-common.o, fold-const.o): Include hashtab.h.

Thu Sep 20 12:49:34 2001  J"orn Rennecke <amylaar@redhat.com>

        * sh.c (shiftcosts): Don't use shiftcosts array for modes wider
        than SImode.

Thu Sep 20 09:00:27 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * stor-layout.c (layout_type, case ARRAY_TYPE): Kludge to disable
        array-too-large test for signed sizetype.

Thu Sep 20 12:19:36 CEST 2001  Jan Hubicka  <jh@suse.cz>

        * i386.md (indirect_jump): Allow Pmode operand.
        (tablejump): LIkewise; perform expansion to 64bit mode.
        * i386.c (symbolic_operand): Allow 64bit PIC references.
        (pic_symbolic_operand): Likewise.
        (ix86_find_base_term): Strip the 64bit PIC references.
        (legitimate_pic_address_disp_p): Handle 64bit PIC.
        (legitimize_pic_address): Likewise.
        (i386_simplify_dwarf_addr): Strip down the 64bit PIC references.
        * i386.h (CASE_VECTOR_MODE): Set to SImode for 64bit PIC compilation.

2001-09-19  Alexandre Petit-Bianco  <apbianco@redhat.com>

        * stringpool.c (get_identifier_with_length): New function.
        * tree.h (get_identifier_with_length): New prototype.

2001-09-19  Alan Modra  <amodra@bigpond.net.au>
            David Edelsohn  <edelsohn@gnu.org>

        Revert:
        * config/rs6000/rs6000.c (logical_operand): CONST_INTs are
        already sign-extended.

        * config/rs6000/aix.h (INIT_TARGET_OPTABS): Define TFmode handlers.
        * config/rs6000/rs6000.c (logical_operand): Always compare op as
        HOST_WIDE_INT.
        (rs6000_emit_set_long_const): Avoid unnecessary shift.
        (output_profile_hook): Declare label_name const.
        * config/rs6000/rs6000.md (boolcsi3, boolcdi3): Change predicates
        to match constraints.

2001-09-19  Stan Shebs  <shebs@apple.com>

        * alias.c: Fix typos in comments.
        * sched-rgn.c (init_ready_list): Ditto.
        * unwind-dw2.c (uw_frame_state_for): Ditto.
        * unwind-dw2-fde.c (_Unwind_Find_FDE): Ditto.
        * unwind.inc (_Unwind_RaiseException_Phase2): Ditto.
        * config/rs6000/rs6000.c (rs6000_adjust_priority): Ditto.

2001-09-19  Richard Henderson  <rth@redhat.com>

        * cfg.c (force_nonfallthru_and_redirect): Handle redirecting
        to the exit block.
        * Makefile.in (cfg.o): Depend on TM_P_H.

2001-09-19  Richard Henderson  <rth@redhat.com>

        * config/alpha/alpha.c (local_symbol_p): Split out from ...
        (local_symbolic_operand): ... here.
        (small_symbolic_operand): Check mode.
        (global_symbolic_operand): New.
        (input_operand): Reject symbolics if explicit relocs.
        (call_operand): Tidy.
        (alpha_legitimize_address): Use movdi_er_high_g.
        (alpha_expand_mov): Likewise.
        * config/alpha/alpha-protos.h: Update.
        * config/alpha/alpha.h (PREDICATE_CODES): Update.
        * config/alpha/alpha.md (UNSPEC_LITERAL, UNSPEC_LITUSE): New.
        (UNSPEC_LDGP2, UNSPECV_PLDGP2): New.
        (UNSPECV_LDGP2): Remove.
        (all call patterns): Use 's' not 'i' for symbolic constraint.
        (call_osf call_value_osf): Use call_operand.
        (all osf call patterns): Use $gp.  New peepholes for explicit relocs.
        (movdi_er_nofix, movdi_er_fix): Remove symbolic alternative.
        (prologue_ldgp_1_er): Remove.
        (ldgp_er_1, ldgp_er_2, prologue_ldgp_er_2): New.
        (builtin_setjmp_receiver_er patterns): Use them.
        (exception_receiver_er): Likewise.

2001-09-19  Richard Henderson  <rth@redhat.com>

        * cfgbuild.c (find_sub_basic_blocks): Handle insns that can throw.

        * emit-rtl.c (try_split): Copy NORETURN, SETJMP, ALWAYS_RETURN
        and NON_LOCAL_GOTO notes.
        * recog.c (peephole2_optimize): Likewise.  Handle EH_REGION;
        copy over CALL_INSN_FUNCTION_USAGE.

2001-09-18  Catherine Moore  <clm@redhat.com>

        * config/stormy16/stormy16.h (DEFAULT_PCC_STRUCT_RETURN):
        Define as 0.

2001-09-18  Ulrich Weigand  <uweigand@de.ibm.com>:

        * config.gcc (s390-*-linux-*, s390x-*-linux*): Switch to
        new-style tm_file specification.  Specify correct tm_p_file,
        md_file, and out_file for s390x.

        * config/s390/linux.h, linux64.h:  Don't include other target
        macro header files.  Now handled via tm_file.

        * config/s390/linux.h, s390.h:  (IEEE_FLOAT, TARGET_IEEE_FLOAT,
        TARGET_IBM_FLOAT): Move from linux.h to s390.h to ensure they
        are defined before use.

Tue Sep 18 09:51:11 2001  Eric Christopher  <ecechristo@redhat.com>

        * config/mips/mips.c (mips_asm_file_start): Conditionalize Elf
        code generation only for Gnu assembler.

2001-09-18  Catherine Moore  <clm@redhat.com>

        * config/stormy16 (LIB_SPEC): Remove -lnosys.

2001-09-18  Richard Sandiford  <rsandifo@redhat.com>

        * config/mips/mips.c (mips_frame_set): New.
        (mips_emit_frame_related_store): When storing two 32-bit FPRs, use
        a parallel frame-related expression with a set for each register.

2001-09-18  Philip Blundell  <philb@gnu.org>

        * config/arm/lib1funcs.asm (L_dvmd_lnx): Don't rely on kernel
        header files.

2001-09-17  Dale Johannesen  <dalej@apple.com>

        * config/rs6000/rs6000.h (FIXED_REGISTERS): Use FIXED_R2.
        * config/rs6000/aix.h (FIXED_R2): Define.
        * config/rs6000/darwin.h (FIXED_R2): Define.
        * config/rs6000/sysv4.h (FIXED_R2): Define.

2001-09-17  Jeff Sturm  <jsturm@one-point.com>

        * except.c (dw2_build_landing_pads): New local
        clobbers_hard_regs.  Emit an ASM_INPUT as a scheduling
        barrier after clobbers.  Fixes c++/4012.

2001-09-17  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * gcc.c (find_file): Use ACONCAT in lieu of alloca/strcpy/strcat.

2001-09-17  Joseph S. Myers  <jsm28@cam.ac.uk>

        * dostage2, dostage3, listing, make-l2.com, makefile.vms,
        patch-apollo-includes, vmsconfig.com: Remove obsolete files.

2001-09-17  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * c-aux-info.c (affix_data_type): Use ASTRDUP in lieu of
        alloca/strcpy.

2001-09-17  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cpphash.h (_cpp_lex_direct): New.
        * cpplex.c (_cpp_lex_token): Update.
        (lex_token): Rename _cpp_lex_direct; lex into pfile->cur_token,
        and increment that pointer.
        * cppmacro.c (alloc_expansion_token): New.
        (lex_expansion_token): Lex macro expansion directly into
        macro storage.

2001-09-16  Brad Lucier  <lucier@math.purdue.edu>

        * Makefile.in: Make rtl-error.o depend on $(CONFIG_H).

Sun Sep 16 21:59:46 CEST 2001  Jan hubicka  <jh@suse.cz>

        * basic-block.h (free_bb_for_insn): Declare.
        * bb-reorder.c (label_for_bb): Use block_label.
        (emit_jump_to_block_after): Remove.
        (insert_intra_1): Do not update block_for_insn.
        (insert_inter_bb_scope_notes): Likewise; update bb->end
        * cfg.c (free_bb_for_insn): New.
        (try_rediret_by_replacing_jump): Avoid set_block_for_new_insns call.
        (force_nonfallthru_and_redirect): Likewise; do not update BB boundaries.
        (commit_one_edge_insertion): Likewise.
        (commit_one_edge_insertion): Do not update BB boundary.
        (commit_edge_insertions): Do not call compute_bb_for_insn.
        * cfgbuild.c (find_basic_blocks): Do not free basic_block_for_insn.
        * cfgcleanup.c (merge_blocks_move_predecessor): Use reorder_insns_nobb.
        (merge_blocks_move_successor_nojumps): Likewise.
        (try_crossjump_to_edge): Do not update block_for_insn.
        * combine.c (combine_instructions): Remove compute_bb_for_insn call.
        * df.c (df_pattern_emit_later): Do not update BB boundary.
        (df_jump_pattern_emit_after): Likewise.
        (df_insn_move_before): Use emit_insn_before.
        * emit-rtl.c (try_split): Emit after trial to get bb boundary updated
         properly.
        (add_insn_after, add_insn_before, emit_insns_after): Update BB
        boundaries and basic_block_for_insn.
        (reorder_insns_nobb): Rename from reorder_insns.
        (reorder_insns): New.
        (emit_block_insn_before, emit_block_insn_after): Kill.
        * flow.c (check_function_return_warnings): Do not call
        compute_bb_for_insn; Do not free basic_block_for_insn.
        (attempt_auto_inc): Do not update basic_block_for_insn.
        * function.c (emit_return_into_block): Likewise;
        do not update BB boundaries.
        * gcse.c (handle_avail_expr): Do not update basic_block_for_insn.
        (insert_insn_end_bb): Use emit_insn_before; Likewise.
        (pre_insert_copy_insn): Likewise.
        (update_ld_motion_notes): Likewise.
        (insert_insn_start_bb): Likewise.
        (replace_store_insn): Likewise.
        * ifcvt.c (noce_process_if_block): Likewise.
        (if_convert): Do not call compute_bb_for_insn.
        * lcm.c (optimize_mode_switching): Do not update BB boundaries.
        Use emit_insn_before and emit_insn_after.
        * recog.c (split_all_insns): Do not update BB boundaries;
        Do not call compute_bb_for_insn.
        (peephole2_optimize): Do not update BB boundaries.
        * reg-stack.c (emit_pop_insn): Use emit_insn_after and
        emit_insn_before.
        (emit_swap_insn): Likewise.
        (convert_regs_1): Likewise.
        * reload1.c (reload): Call compute_bb_for_insn.
        * rtl.h (reorder_insns_nobb): Declare.
        * ssa.c (rename_equivalent_regs): Use emit_insn_before.
        * toplev.c (rest_of_compilation): Call free_bb_for_insn
        at places CFG is invalidated; do not call compute_bb_for_insn.

        * cfg.c (expunge_block): Invalidate BB structure.

        * (merge_blocks_nomove): Update properly BLOCK_FOR_INSN
        array.

        * cfg.c (verify_flow_info): Verify the basic_block_for_insn array.

2001-09-16  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cpphash.h (_cpp_lex_token): Update prototype.
        * cpplex.c (_cpp_lex_token): New prototype.
        * cpplib.c (skip_rest_of_line, check_eol, _cpp_handle_directive,
        lex_macro_node, read_flag, do_pragma_poison): Update.
        * cppmacro.c (cpp_get_token, parse_params,
        lex_expansion_token): Update.

2001-09-16  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cppmain.c (scan_translation_unit): Don't worry about
        putting a space after hashes.
        * cpplib.c (directive_diagnostics): New.
        (_cpp_handle_directive): Update to use directive_diagnostics.
        (run_directive): Don't toggle prevent_expansion.
        (do_line): Backup in case of the line extension.
        * cpplib.h (cpp_lexer_pos): Remove.
        * cppmacro.c (_cpp_create_definition): Precede a leading #
        with whitespace.

2001-09-15  Richard Henderson  <rth@redhat.com>

        * c-typeck.c (comptypes): Handle zero-length arrays properly.

2001-09-15  Roman Lechtchinsky  <rl@cs.tu-berlin.de>

        * c-common.c (c_promoting_integer_type_p): Handle ?Imode types.

2001-09-15  Neil Booth  <neil@daikokuya.demon.co.uk>

        PR preprocessor/3571
        * tradcpp.c (handle_directive): Skip non-vertical space.

2001-09-15  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cppmain.c (setup_callbacks): Set line callback only
        if outputting preprocessed source.

2001-09-15  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * collect2.c (main): Const-ification.
        * gcc.c (translate_options, process_command): Use xstrdup in
        lieu of xmalloc/strcpy.
        (main): Use concat in lieu of xmalloc/strcpy/strcat.

2001-09-14  Roman Lechtchinsky  <rl@cs.tu-berlin.de>

        * doc/install.texi (Specific, alphaev5-cray-unicosmk*): Fix
        example.

2001-09-15  Neil Booth  <neil@daikokuya.demon.co.uk>

        * scan-decls.c (scan_decls): Fix typo.

2001-09-15  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cpphash.h (struct cpp_reader): Remove lexer_pos, directive_pos.
        Split mlstring_pos into mls_line and mls_col.
        * cppinit.c (cpp_create_reader): Initialize line to 1.
        (cpp_destroy): Free tokenruns.
        (push_include): Don't update lexer_pos.
        * cpplex.c (unterminated, parse_string): Update.
        (lex_token): Don't update lexer_pos, update.
        * cpplib.c (if_stack): Save line instead of line + col.
        (start_directive, _cpp_do__Pragma, do_else, do_elif,
        push_conditional, _cpp_pop_buffer): Update.
        * cppmacro.c (funlike_invocation_p): Don't save lexer_pos.
        (_cpp_create_definition): Update.

2001-09-15  Eric Christopher  <echristo@redhat.com>

        * config/mips/abi64.h: Add support for MEABI.

2001-09-15  Eric Christopher  <echristo@redhat.com>

        * config/mips/mips.md: Add unspec #2.
        (reload_indi): Use.
        (reload_outdi): Ditto.
        (reload_outsi): Ditto.
        (HILO_delay): New.

2001-09-15  Eric Christopher  <echristo@redhat.com>
            Jason Eckhardt  <jle@redhat.com>

        * config.gcc: Add mipsisa32 target and mipsisa32-linux target.
        * config/mips/isa32-linux.h: New file.
        * config/mips/isa3264.h: Ditto.
        * config/mips/mips-protos.h: Add mips_hard_regno_nregs.
        * config/mips/mips.c (mips_hard_regno_nregs): Move here from mips.h.
        (output_block_mode): Support MEABI.
        (function_arg): Ditto. Fix floating point arg passing.
        (mips_va_start): Ditto.
        (override_options): Add isas 32 and 64, meabi, mips32 and mips64
        processors.
        (mips_asm_file_start): Add new section to pass abi to gdb.
        (function_arg_pass_by_reference): Support MEABI.
        (mips_parse_cpu): Support mips32 and mips64 processors.
        * config/mips/mips.h: Support ABI_MEABI, TARGET_MIPS4KC,
        TARGET_MIPS5KC.  Support isa32 and isa64.
        (processor_type): Add r4kc, r5kc, r20kc.
        (GENERATE_MULT3_SI): New.
        (GENERATE_MULT3_DI): Ditto.
        (GENERATE_MULT3): Remove.
        (ISA_HAS_64BIT_REGS): Add isa == 64.
        (ISA_HAS_8CC): Add mips_isa = 32 and 64.
        (ISA_HAS_MADD_MSUB): New.
        (ISA_HAS_CLZ_CLO): Ditto.
        (ISA_HAS_DCLZ_DCLO): Ditto.
        (ABI_GAS_ASM_SPEC): New.
        (GAS_ASM_SPEC): Use. Add support for mips32, mips64.
        (ASM_SPEC): Ditto.
        (LINK_SPEC): Ditto.
        (SUBTARGET_CC1_SPEC): Ditto.
        (SUBTARGET_CPP_SIZE_SPEC): Ditto.
        (PAD_VARARGS_DOWN): Support MEABI.
        (HARD_REGNO_NREGS): Move to mips.c.
        (ASM_OUTPUT_IDENT): Add #undef.
        * config/mips/mips.md: Add r4kc, r5kc, r20kc.
        (mulsi3): Use GENERATE_MULT3_SI.
        (mulsi3_mult3): Ditto.  Support mips32, mips64.
        (mul_acc_si): Use ISA_HAS_MADD_MSUB.
        (mul_sub_si): New pattern.
        (unnamed splitters): New.
        (muldi3): Use GENERATE_MULT3_DI.
        (muldi3_internal2): Ditto.
        (movdicc): Support mips32.
        * config/mips/t-isa3264: New file.

2001-09-15  Hans-Peter Nilsson  <hp@axis.com>

        * rtl.h (FIND_REG_INC_NOTE) [HAVE_PRE_INCREMENT
        || HAVE_PRE_DECREMENT || HAVE_POST_INCREMENT
        || HAVE_POST_DECREMENT]: Call find_regno_note for REGs.

        * reorg.c (fill_slots_from_thread): After call to
        steal_delay_list_from_target, update own_thread as new_thread may
        have branched.

2001-09-14  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cpperror.c (print_location): Take line and column, for
        default positioning use the previously lexed token.
        (_cpp_begin_message): Take line and column.
        (cpp_ice, cpp_fatal, cpp_error, cpp_error_with_line, cpp_warning,
        cpp_warning_with_line, cpp_pedwarn, cpp_pedwarn_with_line): Update.
        * cpphash.h (_cpp_begin_message): Update prototype.
        * cppinit.c (push_include): Don't set output line.
        * cpplex.c (_cpp_lex_token): Callback for start of new output lines.
        * cpplib.c (do_diagnostic, _cpp_pop_buffer): Update.
        (do_pragma): Kludge for front ends.  Don't expand macros at all.
        * cpplib.h (cpp_lookahead, cpp_token_with_pos, cpp_get_line): Remove.
        (struct cpp_token): Remove output_line.
        (struct cpp_callbacks): New member line_change.
        * cppmacro.c (builtin_macro, paste_all_tokens, replace_args,
        cpp_get_token): Preserve BOL flag.
        (cpp_get_line): Remove.
        (_cpp_backup_tokens): Remove useless abort().
        * cppmain.c (cb_line_change): New.
        (scan_translation_unit): Don't worry about starting new lines here.
        * scan-decls.c (scan_decls): Update.
        * c-lex.c (c_lex, init_c_lex): Update.
        (cb_line_change, src_lineno): New.

Fri Sep 14 13:54:50 EDT 2001  John Wehle  (john@feith.com)

        * tree.c (append_random_chars): Generate the random
        characters in a reproducable fashion.

2001-09-14  Richard Henderson  <rth@redhat.com>

        * config/i386/i386.c (internal_label_prefix): New.
        (internal_label_prefix_len): New.
        (override_options): Set them.
        (local_symbolic_operand): New.
        (legitimate_pic_address_disp_p): Use it.
        (legitimize_pic_address): Likewise.

2001-09-14  Marc Espie <espie@openbsd.org>

        * config/i386/unix.h (ASM_OUTPUT_MI_THUNK):  Generate reference to GOT
        correctly.

2001-09-14  Roman Lechtchinsky  <rl@cs.tu-berlin.de>

        * config/alpha/alpha.md (unaligned_extendhidi_be): Fix.
        * config/alpha/unicosmk.h (INIT_TARGET_OPTABS): New.

2001-09-14  Nick Clifton  <nickc@cambridge.redhat.com>

        * rtlanal.c (subreg_regno_offset): Add semicolon to end of
        invocation of SUBREG_REGNO_OFFSET.

        * haifa-sched.c: Fix typo in FSF copyright statement.
        * sched-deps.c: Fix typo in FSF copyright statement.
        * sched-ebb.c: Fix typo in FSF copyright statement.
        * sched-rgn.c: Fix typo in FSF copyright statement.
        * sched-vis.c: Fix typo in FSF copyright statement.

        * config.gcc: Move inclusion of arm elf specific header files
        from the files themselves into the tm_file variable.  Make
        sure that elfos.h is included before target specific elf
        headers.
        * config/arm/aout.h (NO_DOLLAR_IN_LABEL): Only define if not
        already defined.
        (ASM_OUTPUT_ASCII, ASM_OUTPUT_SKIP): Protect definition.
        * config/arm.arm.h (TARGET_MEM_FUNCTIONS,
        ASM_OUTPUT_CASE_LABEL): Protect definition.
        (CC1_SPEC, FP_DEFAULT, ARM_FUNCTION_PROFILE): Only define if
        not already defined.
        * config/arm/conix-elf.h: (USER_LABEL_PREFIX,
        LOCAL_LABEL_PREFIX, MAKE_DECL_ONE_ONLY, UNIQUE_SECTION):
        Remove duplicate definition.
        (READONLY_DATA_SECTION, SUBTARGET_EXTRA_SECTION,
        (SUBTARGET_EXTRA_SECTION_FUNCTION, RDATA_SECTION_ASM_OP,
        (RDATA_SECTION_FUNCTION): Remove redundant definition.
        (STARTFILE_SPEC, ENDFILE_SPEC): Protect definition.
        Remove inclusion of arm/elf.h.
        * config/arm/unknown-elf.h: as for conix-elf.h.
        (STARTFILE_SPEC): Include crti.o and crtn.o.
        * config/arm/linux-elf.h: as for conix-elf.h.
        * config/arm/ecos-elf.h: Remove inclusion of unknown-elf.h.
        * config/arm/strongarm-elf.h: Remove inclusion of
        unknown-elf.h.
        * config/arm/xscale-elf.h: Remove inclusion of unknown-elf.h.
        * config/arm/unknown-elf-oabi.h: Remove inclusion of
        unknown-elf.h and elf.h.
        * config/arm/uclinux-elf.h: Remove inclusion of linux-elf.h.
        * config/arm/linux-gas.h (DBX_DEBUGGING_INFO,
        ASM_WEAKEN_LABEL): Remove redundant definition.
        * config/arm/elf.h: Test for inclusion of elfos.h
        (USER_LABEL_PREFIX, ASM_DECLARE_RESULT, ASM_DECLARE_RESULT,
        ASM_DECLARE_OBJECT_NAME, ASM_FINISH_DECLARE_OBJECT_NAME,
        SUBTARGET_EXTRA_SECTION, SUBTARGET_EXTRA_SECTION_FUNCTION,
        EXTRA_SECTIONS, INT_ASM_OP, ASM_WEAKEN_LABEL): Remove
        redundant definition.
        (TYPE_OPERAND_FMT, ASM_DECLARE_FUNCTION_NAME,
        ASM_DECLARE_FUNCTION_SIZE, ASM_OUTPUT_INTERNAL_LABEL,
        ASM_OUTPUT_ALIGNED_COMMON): Protect definition.
        * t-arm-elf (EXTRA_MULTILIB_PARTS): Add crti.o and crtn.o.
        Add rules to build crti.o and crtn.o
        * crti.asm: New file.
        * crtn.asm: New file.

2001-09-13  Neil Booth  <neil@daikokuya.demon.co.uk>

        * c-parse.in (_yylex): Use _cpp_backup_tokens.
        * cpphash.h (struct tokenrun): Add prev.
        (struct lexer_state): Remove bol.
        (struct cpp_reader): Remove old lookahead stuff, add lookaheads.
        (_cpp_free_lookaheads, _cpp_release_lookahead, _cpp_push_token)
        : Remove.
        * cppinit.c (cpp_create_reader): Don't set bol.
        (cpp_destroy): Don't free lookaheads.
        * cpplex.c (lex_directive): Remove.
        (next_tokenrun): Update.
        (_cpp_lex_token): Clean up logic.
        (lex_token): Update to return a pointer to lexed token, since it
        can move to the start of the buffer.  Simpify newline handling.
        * cpplib.c (SEEN_EOL): Update.
        (skip_rest_of_line): Remove lookahead stuff.
        (end_directive): Line numbers are already incremented.  Revert
        to start of lexed token buffer if we can.
        (_cpp_handle_directive, do_pragma, do_pragma_dependency,
        parse_answer): Use _cpp_backup_tokens.
        (run_directive, cpp_pop_buffer): Don't set bol, set saved_flags
        instead.  Don't check for EOL.
        (do_include_common, do_line, do_pragma_system_header): Use
        skip_rest_of_line.
        * cpplib.h (BOL, _cpp_backup_tokens): New.
        * cppmacro.c (save_lookahead_token, take_lookahead_token,
        alloc_lookahead, free_lookahead, _cpp_free_lookaheads,
        cpp_start_lookahead, cpp_stop_lookahead, _cpp_push_token): Remove.
        (builtin_macro): Don't use cpp_get_line.
        (cpp_get_line): Short term kludge.
        (parse_arg): Handle directives in arguments here.  Back up when
        appropriate.  Store EOF at end of argument list.
        (funlike_invocation_p): Use _cpp_backup_tokens.
        (push_arg_context): Account for EOF at end of list.
        (cpp_get_token): Remove lookahead stuff.  Update.

2001-09-13  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * c-parse.in (yyerror): Const-ification and/or static-ization.
        * c-typeck.c (push_member_name): Likewise.
        * collect2.c (main): Likewise.
        * dbxout.c (dbxout_parms): Likewise.
        * diagnostic.c (format_with_decl): Likewise.
        * dwarf2out.c (output_ranges): Likewise.
        * dwarfout.c (fundamental_type_code): Likewise.
        * except.c (dw2_output_call_site_table): Likewise.
        * gcc.c (do_spec_1): Likewise.
        * genopinit.c (optabs): Likewise.
        * objc/objc-act.c (synth_id_with_class_suffix, start_class,
        gen_declaration_1, handle_impent): Likewise.
        * protoize.c (default_include, in_system_include_dir, abspath):
        Likewise.
        * sched-vis.c (visualize_stall_cycles): Likewise.
        * sdbout.c (plain_type_1, sdbout_end_function,
        sdbout_end_epilogue): Likewise.
        * varasm.c (decode_reg_name): Likewise.

        * 1750a.c (mod_regno_adjust): Likewise.
        * alpha.c (alpha_write_one_linkage,
        unicosmk_output_default_externs): Likewise.
        * arm.c (arm_condition_codes): Likewise.
        * arm.h (arm_condition_codes): Likewise.
        * avr.c (output_movsisf, encode_section_info): Likewise.
        * darwin.h (GEN_BINDER_NAME_FOR_STUB, GEN_SYMBOL_NAME_FOR_SYMBOL):
        Likewise.
        * i386.c (hi_reg_name, qi_reg_name, qi_high_reg_name): Likewise.
        * i386.h (hi_reg_name, qi_reg_name, qi_high_reg_name): Likewise.
        * m88k.c (output_function_profiler): Likewise.
        * mips.c (mips_output_conditional_branch): Likewise.
        * ns32k.c (ns32k_out_reg_names): Likewise.
        * ns32k.h (ns32k_out_reg_names): Likewise.
        * pj.c (pj_output_rval): Likewise.
        * rs6000.c (GEN_LOCAL_LABEL_FOR_SYMBOL): Likewise.
        * sparc.c (sparc_flat_function_prologue,
        sparc_flat_function_epilogue): Likewise.

2001-09-13  Markus Werle <numerical.simulation@web.de>
            Gerald Pfeifer  <pfeifer@dbai.tuwien.ac.at>

        * doc/install.texi (Binaries): Add "Binaries for HP-UX 11.00 at
        Aachen University of Technology".

2001-09-13  Andreas Schwab  <schwab@suse.de>

        * config/float-m68k.h: Define DECIMAL_DIG and FLT_EVAL_METHOD for
        C99.

2001-09-13  Richard Henderson  <rth@redhat.com>

        * config/alpha/alpha.c (small_symbolic_operand): New.
        (override_options): Set MASK_SMALL_DATA based on pic/PIC.
        (some_operand, input_operand): Don't handle HIGH.
        (alpha_legitimize_address): Use it.  Emit HIGH with PLUS gp.
        (alpha_expand_mov): Likewise.
        (print_operand) [H]: Just print HIGH symbol.
        (print_operand_address): Handle small data.
        * config/alpha/alpha.h (MASK_SMALL_DATA, TARGET_SMALL_DATA): New.
        (TARGET_SWITCHES): Add -msmall-data/large-data.
        (PIC_OFFSET_TABLE_REGNUM): New.
        (PREFERRED_RELOAD_CLASS): Don't handle HIGH.
        (PREDICATE_COES): Update.
        * config/alpha/alpha.md (adddi_er_high): New.
        (adddi_er_low): Handle small data.
        * config/alpha/elf.h (DO_SELECT_SECTION): If SMALL_DATA,
        prefer .sdata to .rodata.
        (SELECT_RTX_SECTION): Likewise.

2001-09-12  Josh Martin  <josh.martin@abq.sc.philips.com>

        * fixinc/inclhack.def(hpux11_size_t): Keep HP-UX headers from
        defining __size_t and leaving size_t undefined.

2001-09-12  Diego Novillo  <dnovillo@redhat.com>

        * basic-block.h (expunge_block): Declare.
        * cfg.c (expunge_block): Remove static declaration.

2001-09-12  Richard Henderson  <rth@redhat.com>

        * integrate.c (copy_insn_list): Copy label name from
        NOTE_INSN_DELETED_LABEL.

2001-09-12  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * c-common.c (c_tree_code_name): Const-ification.
        * c-decl.c (c_decode_option): Likewise.
        * c-typeck.c (warn_for_assignment): Likewise.
        * collect2.c (libexts, is_ctor_dtor, main, ignore_library):
        Likewise.
        * cppinit.c (output_deps): Likewise.
        * dependence.c (dependence_string, direction_string): Likewise.
        * dwarf2out.c (output_ranges): Likewise.
        * fixinc/fixfixes.c (emit_gnu_type): Likewise.
        * fixinc/gnu-regex.c (re_error_msgid): Likewise.
        * gcc.c (standard_exec_prefix, standard_exec_prefix_1,
        standard_startfile_prefix, standard_startfile_prefix_1,
        standard_startfile_prefix_2, tooldir_base_prefix,
        standard_bindir_prefix, find_a_file): Likewise.
        * genattrtab.c (make_length_attrs): Likewise.
        * gencheck.c (tree_codes): Likewise.
        * genemit.c (gen_split): Likewise.
        * genrecog.c (special_mode_pred_table): Likewise.
        * graph.c (graph_ext): Likewise.
        * protoize (default_include): Likewise.
        * reload.c (reload_when_needed_name): Likewise.
        * sched-vis.c (visualize_stall_cycles): Likewise.
        * tlink.c (recompile_files): Likewise.
        * toplev.c (decode_g_option): Likewise.
        * tradcpp.c (output_deps): Likewise.
        * varasm.c (decode_reg_name): Likewise.

        * arm.c (arm_condition_codes, strings_fpa, thumb_condition_code):
        Const-ification.
        * arm.md: Likewise.
        * avr.c (avr_regnames, encode_section_info): Likewise.
        * c4x.c (float_reg_names): Likewise.
        * darwin.h (ASM_GLOBALIZE_LABEL): Likewise.
        * elfos.h (const_section): Likewise.
        * i386.c (ix86_comp_type_attributes): Likewise.
        * i386/win32.h (STRIP_NAME_ENCODING): Likewise.
        * ia64/aix.h (UNIQUE_SECTION): Likewise.
        * ia64.c (type_names): Likewise.
        * m68hc11.c (reg_class_names): Likewise.
        * m88k.c (m_options): Likewise.
        * mips.c (mips_output_conditional_branch, mips_unique_section):
        Likewise.
        * rs6000/sysv4.h (ASM_DECLARE_FUNCTION_NAME): Likewise.
        * sparc.c (sparc_flat_function_prologue, sparc_flat_function_epilogue,
        ultra_code_names): Likewise.
        * sparc.h (OVERRIDE_OPTIONS): Likewise.

2001-09-12  Jakub Jelinek  <jakub@redhat.com>

        * configure.in (gcc_cv_as_shf_merge): Fix a typo.
        Use --fatal-warnings option for gas.
        * configure: Rebuilt.

2001-09-12  Roman Lechtchinsky  <rl@cs.tu-berlin.de>

        * doc/install.texi (Specific, alphaev5-cray-unicosmk*): Document.

2001-09-11  Jim Wilson  <wilson@redhat.com>

        * alias.c (clear_reg_alias_info): Only handle pseudo registers.

2001-10-11  Matt Kraai  <kraai@alumni.carnegiemellon.edu>

        * builtins.c (c_strlen): Treat an offset too large for a
        HOST_WIDE_INT as out of range.

Tue Sep 11 18:57:47 CEST 2001  Jan Hubicka  <jh@suse.cz>

        * basic-block.h (EDGE_CRITICAL): Remove; renumber other flags.
        (EDGE_CRITICAL_P): New predicate.
        * cfg.c (force_nonfallthru_and_redirect, split_edge): Kill EDGE_CRITICAL
        handling.
        (insert_insn_on_edge): Use EDGE_CRITICAL_P.
        (dump_edge_info): Remove "crit".
        * cfganal.c (mark_critical_edges): Kill.
        * cfgbuild.c (find_basic_blocks): Remove mark_critical_edges call.
        * cfgcleanup.c (cleanup_cfg): Likewise.
        * profile.c (instrument_edges): Use EDGE_CRITICAL_P.
        (find_spanning_tree): Likewise.
        * reg-stack.c (convert_regs_1): Likewise.
        * ssa.c (mark_regs_equivalent_over_bad_edges): Likewise.

        * basic-block.h (create_basic_block_structure): New.
        (create_basic_block): Update prototype.
        (force_nonfallthru): New.
        * bb-reorder.c (fixup_reorder_chain): Fixup use force_nonfallthru.
        * cfg.c (create_basic_block_structure): Rename from create_basic_block;
        handle updating of block_for_insn, creating of empty BBs and BBs at
        the end of INSN chain.
        (create_basic_block): New function.
        (split_block): Use create_basic_block.
        (force_nonfallthru_and_redirect): Break out from ...; cleanup
        (redirect_edge_and_branch_force): ... here.
        (force_nonfallthru): New.
        (split_edge): Rewrite to use force_nonfallthru and create_block.
        * cfgbuild.c (find_basic_blocks_1): Use create_basic_block_structure.
        (find_basic_blocks): Free basic_block_for_insn.
        * cfgcleanup.c (merge_blocks): Use force_nonfallthru.

        * cfg.c: Fix formating.
        * cfgcleanup.c: Fix formating.
        (merge_blocks, tail_recursion_label_p): Return bool.
        (merge_blocks_move_predecessor_nojumps,
         merge_blocks_move_successor_nojumps): Return void.

2001-09-11  Jakub Jelinek  <jakub@redhat.com>

        * configure.in: Check whether assembler supports section merging.
        * config.in: Rebuilt.
        * configure: Rebuilt.
        * varasm.c (variable_section, output_constant_pool): Pass alignment
        to SELECT_SECTION and SELECT_RTX_SECTION.
        (mergeable_string_section): New.
        (mergeable_constant_section): New.
        (default_elf_asm_named_section): Output SECTION_MERGE and
        SECTION_STRINGS flags plus SECTION_ENTSIZE entity size.
        * output.h (mergeable_string_section): New.
        (mergeable_constant_section): New.
        (SECTION_MERGE, SECTION_STRINGS, SECTION_ENTSIZE): Define.
        * toplev.c (flag_merge_constants): New.
        (f_options): Add -fmerge-constants and -fmerge-all-constants
        options.
        (toplev_main): Default to -fno-merge-constants if not optimizing.
        * flags.h (flag_merge_constants): Add extern.
        * invoke.texi (-fmerge-constants, -fmerge-all-constants): Document.
        * tm.texi (SELECT_SECTION, SELECT_RTX_SECTION): Document added third
        argument.
        * config/elfos.h (ASM_SECTION_START_OP, ASM_OUTPUT_SECTION_START):
        Define if assembler has working .subsection -1 support.
        (SELECT_RTX_SECTION, SELECT_SECTION): Add third macro argument.
        Put constant into special SHF_MERGE sections if the linker should
        attempt to merge duplicates.
        * config/ia64/sysv4.h (SELECT_RTX_SECTION, SELECT_SECTION): Add third
        macro argument.
        Put constant into special SHF_MERGE sections if the linker should
        attempt to merge duplicates.
        * config/alpha/elf.h: Likewise.
        (ASM_SECTION_START_OP, ASM_OUTPUT_SECTION_START): Define if assembler
        has working .subsection -1 support.
        * config/nextstep.h: Add third argument to SELECT_RTX_SECTION and
        SELECT_SECTION.
        * config/svr3.h: Likewise.
        * config/darwin.h: Likewise.
        * config/arm/aof.h: Likewise.
        * config/arm/linux-elf.h: Likewise.
        * config/avr/avr.h: Likewise.
        * config/c4x/c4x.h: Likewise.
        * config/d30v/d30v.h: Likewise.
        * config/i386/dgux.h: Likewise.
        * config/i386/osfrose.h: Likewise.
        * config/i386/sco5.h: Likewise.
        * config/i386/svr3gas.h: Likewise.
        * config/ia64/aix.h: Likewise.
        * config/m32r/m32r.h: Likewise.
        * config/m68k/m68k.h: Likewise.
        * config/m88k/dgux.h: Likewise.
        * config/m88k/m88k.h: Likewise.
        * config/mcore/mcore-pe.h: Likewise.
        * config/mips/mips.h: Likewise.
        * config/pa/pa.h: Likewise.
        * config/pa/pa-linux.h: Likewise.
        * config/romp/romp.h: Likewise.
        * config/rs6000/sysv4.h: Likewise.
        * config/rs6000/xcoff.h: Likewise.
        * config/s390/linux.h: Likewise.
        * config/sparc/sparc.h: Likewise.
        * config/sparc/sysv4.h: Likewise.
        * config/stormy16/stormy16.h: Likewise.
        * config/v850/v850.h: Likewise.
        * config/vax/vms.h: Likewise.
        * config/arm/arm.c (arm_elf_asm_named_section): Output SECTION_MERGE
        and SECTION_STRINGS flags plus SECTION_ENTSIZE entity size.
        * config/sparc/sparc.c (sparc_elf_asm_named_section): Use
        default_elf_asm_named_section for SHF_MERGE sections.

Tue Sep 11 17:55:54 CEST 2001  Jan Hubicka  <jh@suse.cz>

        * bb-reorder.c (fixup_reorder_chain): Fallthru edge to exit block
        is OK.

2001-09-11  Joseph S. Myers  <jsm28@cam.ac.uk>

        * c-common.c (split_specs_attrs): Allow for empty attributes with
        empty TREE_PURPOSE.  Fixes PR c/4294.

Tue Sep 11 11:37:52 CEST 2001  Jan Hubicka  <jh@suse.cz>

        * basic-block.h (cached_make_edge, make_single_succ): New.
        (make_edge): Remove first parameter.
        * bb-reroder.c (fixup_reorder_chain): Use make_single_succ_edge.
        * cfg.c (cached_make_edge): Rename from make_edge; return newly
        created edge; use obstack allocation.
        (make_edge, make_single_succ_edge): New.
        (first_removed_edge): New static variable.
        (init_flow): Initialize first_removed_edge and n_edges.
        (clear_edges): Use remove_edge.
        (flow_delete_block): Likewise.
        (remove_edge): Add removed edges to the removed edges list.
        (split_block, redirect_edge_and_branch_force, split_edge):
        Use make_edge.
        * cfganal.c (flow_call_edges_add): Updaet make_edge call.
        (add_noreturn_fake_exit_edges): Likewise.
        (connect_infinite_loops_to_exit): Liekwise.
        * cfgbuild.c (make_label_edge, make_edges, find_sub_basic_blocks):
        Use cached_make_edge.
        * cfgcleanup.c (try_crossjump_to_edge): Use make_single_succ_edge.
        * profile.c (branch_prob): Update make_edge call.
        * ssa-dce.c (ssa_eliminate_dead_code): Likewise.

2001-09-11  Richard Henderson  <rth@redhat.com>

        * config/alpha/alpha.c: Tidy formatting.
        (local_symbolic_operand): Verify mode.
        (alpha_sa_mask): Ignore unicos for eh_return.
        (alpha_expand_epilogue): Handle sp_adj2 zero, not NULL.
        * config/alpha/alpha.md (umk divsi patterns): Remove.
        (extendsfdf2): Remove unicos check.
        (tablejump): Merge vms and unicos code; always use direct set
        plus label_ref use.

2001-09-11  Roman Lechtchinsky  <rl@cs.tu-berlin.de>

        * config.gcc (alpha*-*-unicosmk*): New target.

        * config/alpha/alpha-protos.h (symbolic_operand,
        unicosmk_add_call_info_word, unicosmk_add_extern,
        unicosmk_defer_case_vector, unicosmk_unique_section,
        unicosmk_output_align, unicosmk_text_section, unicosmk_data_section,
        unicosmk_asm_file_start, unicosmk_asm_file_end,
        unicosmk_output_common): Declare.

        * config/alpha/alpha.c (NUM_ARGS, override_options, call_operand,
        direct_return, function_arg, alpha_va_start, alpha_va_arg,
        alpha_does_function_need_gp, alpha_end_function): Support Cray
        Unicos/Mk.
        (alpha_init_machine_status, alpha_mark_machine_status,
        alpha_free_machine_status, unicosmk_output_deferred_case_vectors,
        unicosmk_gen_dsib, unicosmk_output_ssib, unicosmk_need_dex,
        unicosmk_asm_named_section, unicosmk_insert_attributes,
        unicosmk_section_type_flags, symbolic_operand,
        unicosmk_output_module_name, unicosmk_output_default_externs,
        unicosmk_output_dex, unicosmk_output_externs,
        unicosmk_output_addr_vec, unicosmk_ssib_name,
        unicosmk_initial_elimination_offset, unicosmk_asm_file_start,
        unicosmk_asm_file_end, unicosmk_output_common,
        unicosmk_section_type_flags, unicosmk_unique_section,
        unicosmk_add_call_info_word, unicosmk_text_section,
        unicosmk_data_section, unicosmk_extern_list, unicosmk_extern_head,
        unicosmk_add_extern, unicosmk_dex, unicosmk_dex_list,
        unicosmk_dex_count, unicosmk_special_name): New.
        (TARGET_INSERT_ATTRIBUTES, TARGET_SECTION_TYPE_FLAGS): Define for
        TARGET_ABI_UNICOSMK.
        (get_aligned_mem, alpha_expand_unaligned_load,
        alpha_expand_unaligned_store, alpha_expand_unaligned_load_words,
        alpha_expand_unaligned_store_words): Support big-endian mode.
        (print_operand): Likewise. New format specifier 't'. Use
        TARGET_AS_SLASH_BEFORE_SUFFIX.
        (alpha_is_stack_procedure): Rename from vms_is_stack_procedure.
        (alpha_pv_save_size): Update with above change.
        (alpha_sa_mask, alpha_sa_size, alpha_expand_prologue,
        alpha_start_function, alpha_expand_epilogue): Likewise. Support Cray
        Unicos/Mk.

        * config/alpha/alpha.h (TARGET_ABI_UNICOSMK): New.
        (TARGET_ABI_OSF): Exclude TARGET_ABI_UNICOSMK.
        (TARGET_AS_SLASH_BEFORE_SUFFIX): New.
        (EXTRA_CONSTRAINT): New constraint 'U'.
        (PREDICATE_CODES): Add symbolic_operand.

        * config/alpha/alpha.md (UNSPEC_UMK_LAUM, UNSPEC_UMK_LALM,
        UNSPEC_UMK_LAL, UNSPEC_UMK_LOAD_CIW): New constants.
        (mulsi3, *mulsi_se, mulvsi3): Disable for TARGET_ABI_UNICOSMK.
        (integer division and modulus patterns): Split in default and
        Unicos/Mk versions.
        (*divmodsi_internal, *divmoddi_internal): Disable for
        TARGET_ABI_UNICOSMK.
        (unaligned_extend?idi, unaligned_load?i, unaligned_store?i): Split in
        little-endian and big-endian versions.
        (ext, ins, msk): Likewise.
        (extv, extzv, insv): Support big-endian mode.
        (call, call_value, tablejump): Support TARGET_ABI_UNICOSMK.
        (call_umk, call_value_umk, *call_umk, tablejump_umk,
        *tablejump_umk_internal, *call_value_umk): New.
        (*movdi_nofix): Add pattern for loading an address into a register on
        TARGET_ABI_UNICOSMK.
        (umk_laum, umk_lal, umk_lalm, *umk_load_ciw): New.
        (umk_mismatch_args, arg_home_umk): New.
        (various insns): Don't use mov, fmov, nop, fnop and unop.
        (realign): Support TARGET_ABI_UNICOSMK.

        * config/alpha/unicosmk.h: New file.
        * config/alpha/t-unicosmk: New file.

        * fixinc/inclhack.def (unicosmk_restrict): New.
        * fixinc/fixincl.x: Regenerate.

        * ginclude/stddef.h (size_t): Check for and define __SIZE_T__.
        (wchar_t): Check for and define __WCHAR_T__.

2001-09-11  Richard Sandiford  <rsandifo@redhat.com>

        * combine.c (simplify_shift_const): Treat shifts by the mode
        size as undefined.

2001-09-11  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cpphash.h (struct tokenrun): New.
        (struct cpp_context): New member bol.
        (struct cpp_reader): New members.
        (_cpp_init_tokenrun): New.
        * cppinit.c (cpp_create_reader): Set up the token runs.
        * cpplex.c (lex_directive, lex_token, next_tokenrun): New.
        (lex_token): New internalised version of _cpp_lex_token.  Don't
        handle directives or the multiple include opimisation here any
        more.  Simply lex a token.
        * cpplib.c (run_directive): Clear bol.
        (_cpp_pop_buffer): Set bol.
        * cppmacro.c (funlike_invocation_p): Keep tokens whilst parsing
        arguments.

2001-09-11  Michael Meissner  <meissner@redhat.com>

        * config/mips/mips.h (CC1_SPEC): If -mgp32 default to -mfp32, and
        give an error if the user uses -mfp32.
        (CPP_FPR_SPEC): Define __mips_fpr to be 32 or 64 depending on the
        default options.
        (CPP_SPEC): Define __mips_fpr to be 32 or 64, depending on the
        floating point register size.
        (EXTRA_SPECS): Add CPP_FPR_SPEC.

        * config/mips/netbsd.h (ASM_FINISH_DECLARE_OBJECT): Use
        HOST_WIDE_INT_PRINT_DEC to properly print the result of
        int_size_in_bytes.
        * config/mips/elf.h (ASM_FINISH_DECLARE_OBJECT): Ditto.
        * config/mips/elf64.h (ASM_FINISH_DECLARE_OBJECT): Ditto.

2001-09-11  Hans-Peter Nilsson  <hp@axis.com>

        * dbxout.c (dbxout_parms): Fix typo in comment.
        * unroll.c (loop_find_equiv_value): Ditto.
        * toplev.c (rest_of_compilation): Ditto.
        * loop.c (scan_loop): Ditto.
        * dwarf2out.c (struct dw_fde_struct): Ditto.

2001-09-10  Zack Weinberg  <zackw@panix.com>

        * cpplex.c (parse_identifier): Fast-path optimize.  Avoid
        copying identifier when we're just going to throw it away.
        (parse_identifier_slow): New routine to handle abnormal cases.
        (_cpp_lex_token): Update call site.

        * hashtable.c (ht_lookup): Don't assume that the string we've
        been given is NUL-terminated.
        * system.h: #define __builtin_expect(a, b) to (a) if not
        GCC >=3.0.

2001-09-10  Michael Meissner  <meissner@redhat.com>

        * config.gcc (sparc64-*-solaris2): Add alias to be compatible with
        binutils, gdb.

2001-09-10  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/t-aix43 (SHLIB_INSTALL): Use mode 751 (a+x,r-o).

Mon Sep 10 16:26:44 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * builtins.c (c_getstr): Correct thinko in last change and further
        cleanup.

2001-09-10  Tim Freeman <tim@fungibole.com>

        * dwarf2out.c (incomplete_types, decl_scope_table): Make them
        into varray's and register them as roots with the garbage
        collector so they are not collected too soon.

Mon Sep 10 14:21:26 CEST 2001  Jan Hubicka  <jh@suse.cz>

        * Makefile.in (cfg.o, cfganal.o, cfgloop.o, cfgbuild.o, cfgcleanup.o):
        New.
        * basic-block.h (flow_obstack, label_value_list,
        tail_recursion_label_list): Declare
        (tidy_fallthru_edges): Declare.
        (expunge_block, last_loop_beg_note): Delete.
        (can_fallthru, flow_nodes_print, flow_edge_list_print): Declare.
        * cfg.c: New file
        (basic_block_for_insn, label_value_list): Move from flow.c; make global.
        (n_basic_blocks, n_edges, basic_block_info, entry_exit_blocks,
        init_flow, clear_edges, can_delete_note_p, can_delete_label_p,
        flow_delete_insn, flow_delete_insn_chain, create_basic_block,
        expunge_block, flow_delete_block, compute_bb_for_insn,
        update_bb_for_insn, set_block_for_insn, set_block_for_new_insns,
        make_edge, remove_edge, redirect_edge_succ, redirect_edge_succ_nodup,
        redirect_edge_pred, split_block, marge_blocks_nomove, block_label,
        try_redirect_by_replacing_jump, last_loop_beg_note,
        redirect_edge_and_branch, redirect_edge_and_branch_force,
        tidy_fallthru_edge, tidy_fallthru_edges, back_edge_of_syntactic_loop_p,
        split_edge, insert_insn_on_edge, commit_one_edge_insertion,
        commit_edge_insertions, dump_flow_info, debug_flow_info,
        dump_edge_info, dump_bb, debug_bb, debug_bb_n, print_rtl_with_bb,
        verify_flow_info, purge_dead_edges, purge_all_dead_edges):
        Move here from flow.c
        * cfganal.c: New file.
        (forwarder_block_p, can_fallthru, mark_critical_edges,
         mark_dfs_back_edges, need_fake_edge_p, flow_call_edges_add,
         find_unreachable_blocks, create_edge_list, free_edge_list,
         print_edge_list, verify_edge_list, find_edge_index, flow_nodes_print,
         flow_edge_list_print, remove_fake_successors, remove_fake_edges,
         add_noreturn_fake_exit_edges, connect_infinite_loops_to_exit,
         flow_reverse_top_sort_order_compute, flow_depth_first_order_compute,
         flow_dfs_compute_reverse_init, flow_dfs-compute_reverse_add_bb,
         flow_dfs-compute_reverse_execute, flow_dfs_compute_reverse_finish);
        Move here from flow.c
        * cfgbuild.c: New file
        (count_basic_blocks, find_label_refs, make_label_edge, make_eh_edge,
         make_edges, find_basic_blocks_1, find_basic_blocks,
         find_sub_basic_blocks): Move here from flow.c
        * cfgcleanup.c: New file.
        (try_simplify_condjump, try_forward_edges, tail_recursion_label_p,
         merge_blocks_move_predecessor_nojumps,
         merge_blocks_move_successor_nojumps, merge_blocks,
         flow_find_cross_jump, outgoing_edges_match, try_crossjump_to_edge,
         try_crossjump_bb, try_optimize_cfg): Move here from flow.c
        (delete_unreachable_blocks, cleanup_cfg): Likewise; return true
        if succeeded.
        * cfgloop.c: New file
        (flow_loops_cfg_dump, flow_loop_nested_p, flow_loop_dump,
         flow_loops_dump, flow_loops_free, flow_loop_entry_edges_find,
         flow_loop_exit_edges_find, flow_loop_nodes_find,
         flow_loop_pre_header_scan, flow_loop_pre_header_find,
         flow_loop_tree_node_add, flow_loops_tree_build,
         flow_loop_level_compute, flow_loops_level_compute, flow_loop_scan,
         flow_loops_find, flow_loops_update, flow_loop_outside_edge_p):
        Move here from flow.c
        * flow.c: Remove everything moved elsewhere
        * output.h (cleanup_cfg): Return bool.

        * bb-reorder.c (reorder_block_def): Remove 'index'.
        (insert_intra_1): Add argument BB, set block for new note.
        (make_reorder_chain): Do not depdent on BB indexes.
        (make_reorder_chain_1): Do not use BB indexes.
        (label_for_bb): Likewise; set BB for new insn.
        (emit_jump_to_block_after): Likewise.
        (fixup_reoder_chain): Sanity check that all basic blocks
        are chained; verify newly created insn chain; remove
        undocnitional jump simplifying; Do not use BB indexes;
        properly initialize count and frequency information;
        dump reordered sequence.
        (insert_intra_bb_scope_notes): update call of insert_intra_1.
        (insert_inter_bb_scope_notes): Set block for new insn.
        (reorder_basic_blocks): Dump flow info before reoredering.

Mon Sep 10 06:47:35 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * alias.c (clear_reg_alias_info): Use K&R format definition.
        Avoid unsigned warning.
        * builtins.c: Use "unsigned int", not "unsigned".
        (target_char_cast): Use host_integerp and tree_low_cst.
        (expand_builtin_args_info, expand_builtin_frame_address): Likewise.
        (c_strlen): Likewise; OFFSET now HOST_WIDE_INT.
        (c_getstr): Likewise.
        (std_expand_builtin_va_arg): Use int_size_in_bytes.
        (builtin_memcpy_read_str): Avoid unsigned warning.
        (expand_builtin_memcpy): Alignments are unsigned.
        (expand_builtin_strncpy, expand_builtin_memset): Likewise.
        (expand_builtin_expect_jump): Use integer_zerop and integer_onep.
        * predict.c (expensive_function_p): LIMIT now unsigned.
        * resource.c (mark_target_live_regs): Make some vars unsigned.
        * sdbout.c: Use "unsigned int", not "unsigned".
        (MAKE_LINE_SAFE): Add cast to avoid unsigned warning.
        (sdbout_source_line): Likewise.
        (sdbout_record_type_name): Remove "const" for NAME declaration.
        * config/alpha/alpha.c (alpha_expand_block_move): Whitespace fixes.

2001-09-10  Richard Sandiford  <rsandifo@redhat.com>

        * calls.c (store_one_arg): Expand comment.

2001-09-10  Roman Lechtchinsky  <rl@cs.tu-berlin.de>

        * calls.c (store_one_arg): Make sure that the entire argument is
        pushed if STACK_PARMS_IN_REG_PARM_AREA is defined.

2001-09-09  Richard Henderson  <rth@redhat.com>

        * emit-rtl.c (adjust_address): Fix mode for LO_SUM.

Sun Sep  9 10:43:17 CEST 2001  Jan Hubicka  <jh@suse.cz>

        * loop.c (combine_givs): Fix computing of benefit once giv is combined.

2001-09-09  Richard Henderson  <rth@redhat.com>

        * config/alpha/alpha.c (alpha_next_sequence_number): New.
        (alpha_this_literal_sequence_number): New.
        (alpha_this_gpdisp_sequence_number): New.
        (some_operand, input_operand): Add HIGH.
        (local_symbolic_operand): New.
        (alpha_encode_section_info): New.
        (alpha_legitimate_address_p): Allow LO_SUM.
        (alpha_legitimize_address): Generate HIGH+LO_SUM.
        (alpha_expand_mov): Likewise.
        (secondary_reload_class): Check memory_operand not general_operand
        for FP_REGS test.
        (alpha_expand_unaligned_load): Force LO_SUM addresses into a register.
        (alpha_expand_unaligned_store): Likewise.
        (alpha_expand_unaligned_load_words): Likewise.
        (alpha_expand_unaligned_store_words): Likewise.
        (alpha_expand_block_clear): Likewise.
        (print_operand): Handle %#, %*, %H.
        (print_operand_address): Handle LO_SUM.
        (find_lo_sum): New.
        (alpha_does_function_need_gp): Use it.
        (alpha_expand_block_move): Fix signed compare warnings.
        (alpha_sa_mask, alpha_align_insns): Likewise.
        * config/alpha/alpha-protos.h: Update.
        * config/alpha/alpha.h (TARGET_EXPLICIT_RELOCS): New.
        (MASK_EXPLICIT_RELOCS): New.
        (TARGET_SWITCHES): Add -mexplicit-relocs.
        (EXTRA_CONSTRAINT): Add 'T'.
        (PREFERRED_RELOAD_CLASS): HIGH goes in GENERAL_REGS.
        (ASM_APP_ON, ASM_APP_OFF): Turn on and off asm macro expansion.
        (ENCODE_SECTION_INFO): Out line.
        (REDO_SECTION_INFO_P): New.
        (STRIP_NAME_ENCODING): New.
        (ASM_OUTPUT_LABELREF): New.
        (PRINT_OPERAND_PUNCT_VALID_P): Add #, *.
        (PREDICATE_CODES): Update.
        * config/alpha/alpha.md (divmodsi_internal_er, divmoddi_internal_er,
        call_osf_1_er_noreturn, call_osf_1_er, movdi_er_low, movdi_er_nofix,
        movdi_er_fix, prologue_ldgp_1_er, builtin_setjmp_receiver_sub_label_er,
        builtin_setjmp_receiver_er, exception_receiver_1_er,
        call_value_osf_1_er): New patterns.
        (sibcall_osf_1, sibcall_value_osf_1): Remove register alternative.
        (movqi, movhi, movsi): Add explicit $31 base register to lda.
        * config/alpha/elf.h (ASM_FILE_START): Set nomacro if explicit relocs.
        (FINAL_PRESCAN_INSN): New.

Sat Sep  8 22:00:55 CEST 2001  Jan Hubicka  <jh@suse.cz>

        * reg-stack.c (subst_stack_regs_pat): Fix fcmov reversal code.

2001-09-08  Andreas Jaeger  <aj@suse.de>

        * i386.h (TARGET_SWITCHES): Fix description.

2001-09-07  David Edelsohn  <edelsohn@gnu.org>

        * rs6000.c (num_insns_constant): Compute number of instructions
        more accurately.

        * doc/install.texi: Explain AIX exception handling work-around.
        Update URL for AIX fixes.

2001-09-07  Jim Wilson  <wilson@redhat.com>

        * alias.c (clear_reg_alias_info): New.
        * flow.c (attempt_auto_inc): Call clear_reg_alias_info.
        * rtl.h (clear_reg_alias_info): Declare.

2001-09-07  Roman Lechtchinsky  <rl@cs.tu-berlin.de>

        * real.c (EMUSHORT,EMUSHORT_SIZE): Use HImode if no 16-bit type is
        available.
        (UEMUSHORT): New. Use instead of unsigned EMUSHORT.
        (m16m,edivm,emulm): Change declaration to match definition.

2001-09-07  Roman Lechtchinsky <rl@cs.tu-berlin.de>

        * reload.c (push_reload): Check for subreg_lowpart_p instead of
        SUBREG_BYTE being 0 when determining if the inner part of a subreg
        can be reloaded.

2001-09-07  Roman Lechtchinsky  <rl@cs.tu-berlin.de>

        * c-common.c (signed_or_unsigned_type): Handle machine mode types
        which have no corresponding C type.
        * fold_const.c (target_isinf,target_isnan,target_negative): Update
        the representation of 64-bit doubles to work with 64-bit ints.

2001-09-07  Aldy Hernandez  <aldyh@redhat.com>

        * config/mips/mips.c (override_options): Do not override ISA when ABI
        specified if MIPS_CPU_STRING_DEFAULT was specified.

2001-09-07  Richard Henderson  <rth@redhat.com>

        * loop.c (record_giv): Avoid simplifying MULT to ASHIFT.
        (express_from_1): Wrap lines.
        * rtlanal.c (commutative_operand_precedence): Rename from
        operand_preference; export.
        * rtl.h: Declare it.
        * simplify-rtx.c (simplify_gen_binary): Tidy +/- const_int handling.
        (simplify_binary_operation): Invoke simplify_plus_minus on
        (CONST (PLUS ...)) as well.
        (struct simplify_plus_minus_op_data): New.
        (simplify_plus_minus_op_data_cmp): New.
        (simplify_plus_minus): Use them.  Avoid infinite recursion with
        simplify_binary_operation wrt CONST.

Fri Sep  7 11:52:30 2001   Kazu Hirata  <kazu@hxi.com>

        * h8300-protos.h (general_operand_dst_push): Remove.
        * h8300.c (general_operand_dst_push): Likewise.
        * h8300.h (OK_FOR_T): Likewise.
        (EXTRA_CONSTRAINTS): Do not use OK_FOR_T.
        * h8300.md (pushqi_h8300): New.
        (pushqi_h8300hs): Likewise.
        (pushqi): Likewise.
        (pushhi_h8300): Likewise.
        (pushhi_h8300hs): Likewise.
        (pushhi): Likewise.

Fri Sep  7 12:56:26 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * genattrtab.c (attr_printf): First arg is unsigned.
        Clean up formatting of callers.

2001-09-06  Aldy Hernandez  <aldyh@redhat.com>

        * config/mips/mips.c (override_options): Allow abi32 with 64 bit
        registers.

2001-09-07  Andreas Jaeger  <aj@suse.de>

        * i386.h (TARGET_SWITCHES): Fix descriptions.

2001-09-07  Matt Kraai  <kraai@alumni.carnegiemellon.edu>

        * stor-layout.c (compute_record_mode): Check DECL_SIZE is set.

2001-09-06  Ira Ruben  <ira@apple.com>

        Remove OP_IDENTIFIER.
        * tree.def (OP_IDENTIFIER): Remove.
        * tree.c (tree_node_kind enum): Remove op_id_kind.
        (tree_node_kind_names): Remove "op_identifiers".
        (make_node): Remove OP_IDENTIFIER test.
        (build_op_identifier): Removed because it isn't being used.
        * print-tree.c (print_node): Remove OP_IDENTIFIER case.
        * cp/pt.c (tsubst): Remove OP_IDENTIFIER case.

2001-09-06  Richard Henderson  <rth@redhat.com>

        * simplify-rtx.c (simplify_binary_operation): Revert last change.

2001-09-06  Richard Henderson  <rth@redhat.com>

        * simplify-rtx.c (simplify_binary_operation): Simplify contents
        of CONST.

2001-09-06  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

        * config/rs6000/rs6000.c (rs6000_emit_prologue): Fix DWARF2 register
        number used for CR register.

Thu Sep  6 11:16:35 2001  Jeffrey A Law  (law@cygnus.com)
                          Joern Rennecke (amylaar@cygnus.com)

        * h8300-protos.h (h8300_return_addr_rtx): New prototype.
        * h8300.c (initial_offset): Handle offset between RP and FP.
        (h8300_return_addr_rtx): New function.
        * h8300.h (FIRST_PSEUDO_REGISTER): Bump now that we have a
        return register.
        (FIXED_REGISTERS, CALL_USED_REGISTERS): Corresponding changes.
        (REG_ALLOC_ORDER, RETURN_ADDRESS_POINTER_REGNUM): Likewise.
        (REG_CLASS_CONTENTS, ELIMINABLE_REGS): Likewise.
        (CAN_ELIMINATE, REGISTER_NAMES):
        (RETURN_ADDR_RTX): Call h8300_return_addr_rtx.

2001-09-06  Nathan Sidwell  <nathan@codesourcery.com>

        Remove TYPE_NONCOPIED_PARTS.
        * tree.h (TYPE_NONCOPIED_PARTS): Remove.
        (struct tree_type): Remove noncopied_parts.
        * c-tree.h (TYPE_ACTUAL_ARG_TYPES): Map onto TYPE_BINFO.
        * expr.c (save_noncopied_parts, init_noncopied_parts): Remove.
        (fixed_type_p): Remove.
        (expand_expr, INIT_EXPR): Don't deal with noncopied parts.
        (expand_expr, MODIFY_EXPR): Likewise.
        * ggc-common.c (ggc_mark_trees): Remove TYPE_NONCOPIED_PARTS.
        * doc/c-tree.texi: Remove TYPE_NONCOPIED_PARTS FIXME.

2001-09-06  Alan Modra  <amodra@bigpond.net.au>

        * config/rs6000/rs6000.c (mask_operand): Use signed vars to avoid
        compiler warnings.
        (mask64_operand): Likewise.
        (includes_rldic_lshift_p): Likewise.
        (includes_rldicr_lshift_p): Likewise.

2001-09-05  Ziemowit Laski  <zlaski@apple.com>

        * objc/objc-act.c (build_message_expr): If a class method cannot
        be found, do not issue a warning if a corresponding instance
        method exists in the root class.

2001-09-05  Richard Henderson  <rth@redhat.com>

        * config/alpha/alpha.c (alpha_expand_mov): Initialize temp.

2001-09-05  Zack Weinberg  <zack@codesourcery.com>

        * function.c (ggc_mark_struct_function): Mark f->outer.
        * toplev.c (rest_of_compilation): Clear DECL_SAVED_INSNS here...
        * integrate.c (output_inline_function): ... not here.

Wed Sep  5 17:28:49 CEST 2001  Jan Hubicka  <jh@suse.cz>

        * profile.c (branch_prob): Call add_noreturn_fake_exit_edges.

        * i386.c (size_cost): New static variable.
        (override_function): Use size_cost when -Os is specified.

        * i386.c (ix86_expand_prologue): Set use_fast_prologue_epilogue
        properly;  Use current_function_calls_eh_return.
        (ix86_expand_epilogue): Avoid dummy optimize_size tests;
        use leave to avoid depdendancy chain.

        * local-alloc.c (update_equiv_regs): Use CFG to iterate over INSN stream;
        get BB loop_depth instead of computing it from LOOP notes.

        * reg-stack.c (subst_stack_reg_pat): Handle reversal of conditional moves.

2001-09-05  John David Anglin  <dave@hiauly1.hia.nrc.ca>

        * som.h (ASM_PREFERRED_EH_DATA_FORMAT): Define.
        * pa.h (UNALIGNED_SHORT_ASM_OP, UNALIGNED_INT_ASM_OP,
        UNALIGNED_DOUBLE_INT_ASM_OP): Define

2001-09-05  Jeffrey A Law  (law@cygnus.com)
            Jason Merrill (jason@redhat.com)

        * stor-layout.c (layout_type): Complain if an array's size can
        not be represented in a size_t.

        * config/h8300/elf.h (ENDFILE_SPEC, STARTFILE_SPEC): Define.

2001-09-05  David Billinghurst <David.Billinghurst@riotinto.com>

        * gcc.c: (process_command) Add parentheses around assignment
        used as truth value.

2001-09-05  Richard Sandiford  <rsandifo@redhat.com>

        * config/mips/mips.c (save_restore_insns): Don't mark any register
        save slots as unchanging if current_function_calls_eh_return.

2001-09-05  Richard Henderson  <rth@redhat.com>

        * config/alpha/alpha.c (alpha_legitimate_address_p): New.
        * config/alpha/alpha-protos.h: Declare it.
        * config/alpha/alpha.h (GO_IF_LEGITIMATE_ADDRESS): Move to c file.
        (NONSTRICT_REG_OK_FOR_BASE_P): Rename from non-strict macro.
        (NONSTRICT_REG_OK_FP_BASE_P): Likewise.
        (STRICT_REG_OK_FOR_BASE_P): Rename from strict macro.
        (REG_OK_FOR_BASE_P): Select one of the above.

2001-09-05  Richard Sandiford  <rsandifo@redhat.com>

        * config/mips/t-elf (EXTRA_PARTS): Use EXTRA_MULTILIB_PARTS instead.
        (crti.o): Prefix name of object file with $(T).
        (crtn.o): Likewise.

2001-09-05  David S. Miller  <davem@redhat.com>

        * config/sparc/linux.h: Set CPLUSPLUS_CPP_SPEC.
        * config/sparc/linux64.h: Likewise.

2001-09-05  Andreas Jaeger  <aj@suse.de>

        * doc/invoke.texi (i386 Options): -mwide-multiply is not
        available anymore, remove the documentation.
        (i386 Options): Fix typo, cleanup index entries.

        * prefix.c (concat): Remove, we can use the version from liberty.

2001-09-05  Richard Henderson  <rth@redhat.com>

        * config/alpha/alpha.c (alpha_expand_mov, alpha_expand_mov_nobwx):
        New functions split out of md file expanders.
        * config/alpha/alpha-protos.h: Declare them.
        * config/alpha/alpha.md (movqi, movhi, movsi, movdi): Use them.

2001-09-05  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cppmacro.c (funlike_invocation_p): No need to restore context.

2001-09-04  Richard Henderson  <rth@redhat.com>

        * reload.c (push_reload): Export.
        * reload.h (push_reload): Declare it.

        * config/alpha/alpha.h (LEGITIMIZE_ADDRESS): Move out o' line.
        (LEGITIMIZE_RELOAD_ADDRESS): Likewise.
        * config/alpha/alpha.c (alpha_legitimize_address): New.
        (alpha_legitimize_reload_address): Likewise.
        * config/alpha/alpha-protos.h: Declare them.

2001-09-04  Stan Shebs  <shebs@apple.com>

        * config/darwin.h (ASM_DECLARE_FUNCTION_NAME): Define.
        * config/darwin.c (machopic_stub_name): Account for internally
        generated lib calls such as memcpy.

2001-09-04  Richard Henderson  <rth@redhat.com>

        * unwind.h (_UA_END_OF_STACK): New flag.
        * unwind.inc (_Unwind_ForcedUnwind_Phase2): Set it.

Tue Sep  4 11:16:35 2001  Jeffrey A Law  (law@cygnus.com)

        * h8300/elf.h (LINK_SPEC): Redefine appropriately for the H8.

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

        * config/mips/mips.c (save_restore_insns): Change base_offset to
        fp_offset in second call to mips_emit_frame_related_store.

2001-09-04  Hans-Peter Nilsson  <hp@axis.com>

        * doc/rtl.texi: Mention that besides as a CODE_LABEL, a label can
        sometimes be represented as a NOTE of type
        NOTE_INSN_DELETED_LABEL.
        (Insns): Document NOTE_INSN_DELETED_LABEL.

2001-09-04  Nathan Sidwell  <nathan@codesourcery.com>

        * c-common.h (tree_dump_index): Add more comments.
        * c-dump.c (dump_files): Name flags `tree' rather than `ast'.
        (dump_option_value_info): New struct.
        (dump_options): New array.
        (dump_switch_p): Parse switch options symbolically.
        * doc/invoke.texi (-fdump-ast): Rename to ...
        (-fdump-tree): ... here. Document that options are symbolic, and
        not all are applicable.

2001-09-04  David S. Miller  <davem@redhat.com>

        * config/sparc/sparc.md (define_splits): Kill constraints.

        Cleanup redundant and unused insn attributes.
        * config/sparc/sparc.md (define_attr "insn"): Kill address, unary,
        binary, and move.  Mark ialu as default.
        (commented out define_function_unit "alu"): Kill.
        (define_attr "use_clobbered"): Kill.
        (whole file): Kill address insn type references.  Replace
        all unary/binary/move references with ialu.
        * config/sparc/sparc.c (whole file): Kill TYPE_ADDRESS
        references.  Replace TYPE_{UNARY,BINARY,MOVE} references with
        TYPE_IALU.

        Simplify length insn attribute and make more judicious use
        of insn attribute defaulting.
        * config/sparc/sparc.md (all insns with length > one): Mark as
        insn type multi if real instructions, else use default if
        it is a forced splitter.
        (all insns with length == one): Use default insn length.
        (all insns of type ialu): Use default insn type.

        Fix erroneous insn attribute settings.
        (addx): Set insn type to misc.
        (mulsidi3_sp64, const_mulsidi3_sp64, umulsidi3_sp64,
        const_umulsidi3_sp64): Set insn type to imul.

        Track SFmode vs DFmode insns according to UltraSPARC
        scheduling rules.
        * config/sparc/sparc.md ("fptype"): New attribute, default
        to "single".
        (all DFmode single insns): Mark as fptype "double".

2001-09-03  Jakub Jelinek  <jakub@redhat.com>

        * loop.c (express_from_1): Fix CONSTANT_P(a) case.

2001-09-03  Richard Henderson  <rth@redhat.com>

        * function.h (struct function): Add arg_pointer_save_area_init.
        * function.c (expand_function_end): Init arg_pointer_save_area.
        (get_arg_pointer_save_area): Do not init arg_pointer_save_area
        when called from a nested function.

2001-09-02  Angela Marie Thomas <angela@cygnus.com>

        * fixinc/Makefile.in: Regenerate fixincl.x only if maintainer-mode
        is enabled.

Sun Sep  2 18:37:54 CEST 2001  Jan Hubicka  <jh@suse.cz>

        * reload1.c (fixup_abnormal_edges): Allow NOTEs in the sequence.

2001-09-01  Geoffrey Keating  <geoffk@redhat.com>

        * expr.c (push_block): Make sane use of STACK_GROWS_DOWNWARD.
        (emit_push_insn): Use specified padding direction when
        STACK_PUSH_CODE is POST_INC.

        * config/stormy16/stormy16.h (DWARF2_UNWIND_INFO): Define to 0.

2001-09-01  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * mips.h (INITIAL_ELIMINATION_OFFSET): Add missing `else abort'.

2001-09-01  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cppinit.c (cpp_start_read): Free the imacros list as we
        traverse it.  Don't free the chains before returning.
        (_cpp_push_next_buffer): Only try pushing buffers if we've
        completed -imacros handling.

2001-08-31  Eric Christopher  <echristo@redhat.com>

        * gcc.c (handle_braces): Add explaination for abort.

2001-08-30  Roman Zippel  <zippel@linux-m68k.org>

        * expmed.c (store_bit_field): Update to patch from 2001-08-27:
        move adjustment of bitpos instead.

2001-08-31  Zack Weinberg  <zack@codesourcery.com>

        * function.c: Remove all_functions.  Make outer_function_chain
        static.
        (init_function_start): Don't add new function structure to
        all_functions.
        (find_function_data, push_function_context_to,
        pop_function_context_from, put_var_into_stack,
        trampoline_address): Update for changed structure element names.
        (push_function_context_to): Disentangle.
        (free_after_compilation): Also free F.
        (expand_dummy_function_end): Don't free cfun here.
        (put_var_into_stack): Comment why we can't use find_function_data here.
        (fix_lexical_addr, trampoline_address, ): Use find_function_data.
        (mark_function_chain): Split into maybe_mark_struct_function and
        ggc_mark_struct_function.  Export the latter.
        (init_function_once): Mark from cfun and outer_function_chain;
        not all_functions.

        * function.h (struct function): Kill next_global.  Rename next
        to outer.  All users updated to match.
        (all_functions, outer_function_chain): Don't declare.

        * ggc-common.c (ggc_mark_trees): Mark DECL_SAVED_INSNS.
        * integrate.c (output_inline_function): Clear DECL_SAVED_INSNS,
        don't touch f->inlinable, after calling rest_of_compilation.

        * tree.h: Forward-declare struct function.  Prototype
        ggc_mark_struct_function.

2001-08-31  Kazu Hirata  <kazu@hxi.com>

        * config/h8300/h8300.md (*andorhi3): Fix typos.

2001-08-31  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * calls.c (emit_library_call_value): Don't use a fixed
        argument after VA_CLOSE, i.e. out of scope in traditional C.

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

2001-08-31  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * Makefile.in (c-pragma.o): Depend on output.h.
        (reorg.o): Depend on except.h.

        * c-pragma.c: Include output.h.

        * reorg.c: Include except.h.

        * unwind-dw2.c: Call __builtin_alloca, not alloca.

2001-08-31  Richard Henderson  <rth@redhat.com>

        * sched-deps.c (add_dependence): Don't elide dependancy if the
        conditional used by insn is modified in elem.

2001-08-31  Nick Clifton  <nickc@cambridge.redhat.com>

        * config/v850/v850.h (OUTPUT_ADDR_CONST_EXTRA): Define.

2001-08-31  Diego Novillo  <dnovillo@redhat.com>

        * c-decl.c (c_decode_option): Skip '-f' prefix before calling
        dump_switch_p.

2001-08-31  Geoffrey Keating  <geoffk@redhat.com>

        * config/stormy16/stormy16.c (stormy16_asm_out_destructor): New
        function.
        (stormy16_asm_out_constructor): New function.
        (TARGET_ASM_CONSTRUCTOR): Define.
        (TARGET_ASM_DESTRUCTOR): Define.

2001-08-31  Andreas Jaeger  <aj@suse.de>

        * gcse.c (add_label_notes): REG_LABEL is an INSN_LIST.
        * loop.c (add_label_notes): Likewise.
        * reload.c (find_reloads): Likewise.
        * config/sh/sh.c (machine_dependent_reorg): Likewise.

2001-08-31  Jason Merrill  <jason_merrill@redhat.com>

        * unwind-pe.h (read_uleb128, read_sleb128): Move actual reading
        code here.  Take _Unwind_{W,Sw}ord*.
        (read_encoded_value_with_base): Use them.
        * unwind-dw2.c (_Unwind_FrameState): Make cfa_offset and cfa_reg
        words.
        (extract_cie_info): Simplify read_?leb128 handling.
        (execute_stack_op, execute_cfa_program): Likewise.
        * unwind-dw2-fde.c (get_cie_encoding): Likewise.

2001-08-31  Geoffrey Keating  <geoffk@redhat.com>

        * config/stormy16/stormy16.c (stormy16_expand_epilogue): Use
        the frame pointer to pop the stack if convenient.

        * config/stormy16/stormy16.c (stormy16_initialize_trampoline):
        Don't use post-increment before combine.
        * config/stormy16/stormy16.h (STATIC_CHAIN_REGNUM): Don't use
        a call-saved register.

2001-08-31  Andreas Jaeger  <aj@suse.de>

        * jump.c (mark_jump_label): Revert patch from 2001-08-28, the
        code was correct.

2001-08-30  Geoffrey Keating  <geoffk@redhat.com>

        * config/stormy16/stormy16.md (udivmodhi4): Express using UDIV/UMOD,
        not DIV/MOD, of course.

2001-08-30  Vladimir Makarov  <vmakarov@redhat.com>

        * rtl.def: Undo my patch commited 2001-08-27.

        * genattrtab.c: Ditto.

        * rtl.h: Ditto.

        * sched-int.h: Ditto.

        * target-def.h: Ditto.

        * target.h: Ditto.

        * haifa-sched.c: Ditto.

        * sched-rgn.c: Ditto.

        * sched-vis.c: Ditto.

        * Makefile.in: Ditto.

        * doc/md.texi: Ditto.

        * doc/tm.texi: Ditto.

        * doc/contrib.texi: Ditto.

        * doc/gcc.texi: Ditto.

        * genattrtab.h: Remove it.

        * genautomata.c: Remove it.

        * genattr.c: Undo my patch and Richard Henderson's patch commited
        2001-08-27.

Thu Aug 30 19:22:15 2001  J"orn Rennecke <amylaar@redhat.com>

        * config.gcc (h8300-*-elf*): New case.
        * h8300.h (CPP_SPEC): Add subtarget_cpp_spec.
        (SUBTARGET_CPP_SPEC): Define.
        (EXTRA_SPECS): Define.
        (SUBTARGET_EXTRA_SPECS): Define.
        * config/h8300/crti.asm, config/h8300/crtn.asm: New files.
        * config/h8300/elf.h, config/h8300/t-elf: Likewise.

Thu Aug 30 18:50:37 2001  J"orn Rennecke <amylaar@redhat.com>

        * t-h8300 (LIB1ASMFUNCS): Add _fixunssfdi and _fixunssfsi_asm.
        (LIB2FUNCS_EXTRA): Define.
        config/h8300/lib1funcs.asm: New part: L_fixunssfsi_asm .
        config/h8300/fixunssfsi.c: New file.

2001-08-30  Kazu Hirata  <kazu@hxi.com>

        * config/h8300/h8300.md (zero_extendqihi2): Changes to
        define_expand to accomodate target-specific attributes.
        (anonymous zero_extendqihi2 patterns): New.

Thu Aug 30 18:10:56 2001  J"orn Rennecke <amylaar@redhat.com>

        * h8300.md (*andorhi3): New pattern.

Thu Aug 30 16:00:31 2001  J"orn Rennecke <amylaar@redhat.com>

        * h8300.c (dosize): Fix test for "sub".

Thu Aug 30 10:21:43 2001  J"orn Rennecke <amylaar@redhat.com>

        * c-typeck.c (pointer_diff): Try to eliminate common term before
        doing conversions.

2001-08-30  Nick Clifton  <nickc@cambridge.redhat.com>

        * config/arm/arm.c (arm_compute_initial_elimination_offset):
        Account for the saves of the FP registers.

        * config/arm/unknown-elf.h (TEXT_SECTION): Delete.
        (TEXT_SECTION_ASM_OP): Define.
        (INIT_SECTION_ASM_OP): Define.
        (FINI_SECTION_ASM_OP): Define.
        (SUBTARGET_EXTRA_SECTIONS): Remove trailing comma.
        (RDATA_SECTION_FUNCITON): Provide prototype.

2001-08-29  Geoffrey Keating  <geoffk@redhat.com>

        * reload1.c (move2add_note_store): Correct typo checking for
        argument pushes.

2001-08-29  Andrew MacLeod  <amacleod@redhat.com>

        * gcse.c (compute_hash_table): The SRC part of an insn with a RETVAL
        note should not be considered outside the libcall block.

2001-08-29  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * genattrtab.c (attr_printf): Use VA_OPEN/VA_FIXEDARG/VA_CLOSE.

2001-08-29  Kazu Hirata  <kazu@hxi.com>

        * config/h8300/h8300.md (movsi_h8300hs): Make it 64-bit safe.

2001-08-29  Kazu Hirata  <kazu@hxi.com>

        * config/h8300/h8300-protos.h: Add a prototype for
        emit_logical_op.
        * config/h8300/h8300.c (emit_logical_op): New.
        * config/h8300/h8300.md (andhi3): Use emit_logical_op.
        (andsi3): Likewise.
        (iorhi3): Likewise.
        (iorsi3): Likewise.
        (xorhi3): Likewise.
        (xorsi3): Likewise.

2001-08-29  John David Anglin  <dave@hiauly1.hia.nrc.ca>

        * pa.c (move_operand): Cast GET_MODE_SIZE results to HOST_WIDE_INT for
        comparison with rtx INTVAL.
        (pa_output_function_prologue): Don't mix signed and unsigned in `?'
        expression.
        * pa.h (FUNCTION_ARG_SIZE): Likewise.

2001-08-29  Kazu Hirata  <kazu@hxi.com>

        * config/h8300/lib1funcs.asm: Update the copyright.  Fix
        comment typos.

2001-08-29  Kazu Hirata  <kazu@hxi.com>

        * config/h8300/h8300.md (anonymous movhi pattern): Don't move
        (reg n) to (mem (pre_dec (reg n))
        (anonymous movsi pattern): Likewise.

2001-08-29  Kazu Hirata  <kazu@hxi.com>

        * config/h8300/h8300.h (RETURN_ADDR_RTX): New.

2001-08-29  Kazu Hirata  <kazu@hxi.com>

        * config/h8300/h8300.md (movsi_h8300hs): Optimize loading of
        several special constants.

2001-08-29  Kazu Hirata  <kazu@hxi.com>

        * config/h8300/lib1funcs.asm: Fix comment typos.

2001-08-29  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * iris6.h (ASM_DECLARE_OBJECT_NAME, ASM_FINISH_DECLARE_OBJECT):
        Fix format specifier warnings.

        * irix6-libc-compat.c (inet_ntoa, inet_lnaof, inet_netof,
        inet_makeaddr, semctl): Prototype.

        * mips.c (compute_frame_size): Fix signed/unsigned warnings.
        (save_restore_insns): Use base_offset, not gp_offset.

        * mips.h (GP_REG_OR_PSEUDO_STRICT_P): Fix signed/unsigned warning.
        (ASM_OUTPUT_BYTE): Fix format specifier warning.

2001-08-29  Richard Henderson  <rth@redhat.com>

        * bb-reorder.c (function_tail_eff_head): New.
        (record_effective_endpoints): Set it.
        (fixup_reorder_chain): Use it.

2001-08-28  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * dwarf2asm.c (dw2_asm_output_nstring): Fix typo in previous change.

2001-08-28  Dale Johannesen  <dalej@apple.com>

        * config/darwin.c (machopic_function_base_name): Add const
        qualifier to a string.
        (darwin_encode_section_info): Ditto.

2001-08-28  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * tree.c (default_valid_attribute_p): Don't use PARAMS on a
        function definition.

2001-08-28  Daniel Berlin  <dan@cgsoftware.com>

        * df.h (struct df): Add rts_order variable.

        * df.c (df_visit_next_rts): New function.
        (df_visit_next): Renamed to df_visit_next_rc
        (df_analyse_1): Allocate/compute/free rts_order as well.
        (df_rd_global_compute): Use df_visit_next_rc instead of
        df_visit_next.
        (df_ru_global_compute): Use df_visit_next_rts instead of
        df_visit_next.

        * flow.c (flow_reverse_top_sort_order_compute): New function.

        * basic-block.h: Add prototype.

2001-08-28  Daniel Berlin  <dan@cgsoftware.com>

        * ssa-ccp.c (ssa_ccp_df_delete_unreachable_insns): For unreachable
        blocks, the BB_REACHABLE is now set, rather than aux being
        non-NULL. Update the test to reflect this.

2001-08-28  Eric Christopher  <echristo@redhat.com>

        * config/mips/crtn.asm: Add comment explaining 16 byte alignment.
        config/mips/crti.asm: Ditto.

2001-08-28  Eric Christopher <echristo@redhat.com>
            Richard Henderson <rth@redhat.com>

        * c-pragma.h (add_weak): Move prototype from here...
        * output.h (add_weak): ... to here.
        * varasm.c (add_weak): Fix typo.
        * config/mips/crti.asm: New file.
        * config/mips/crtn.asm: Ditto.
        * config/mips/elf.h (SBSS_SECTION_ASM_OP) Add #undef.
        (CTOR_LISTS_DEFINED_EXTERNALLY): Remove.
        (INVOKE__main): Ditto.
        (INIT_SECTION_ASM_OP): New.
        (FINI_SECTION_ASM_OP): Ditto.
        (STARTFILE_SPEC): Add crti.
        (ENDFILE_SPEC): Add crtn.
        * config/mips/elf64.h: Same.
        * config/mips/rtems64.h (INVOKE__main, NAME__MAIN, SYMBOL__MAIN):
        Remove.
        * config/mips/vxworks.h: Ditto.
        * config/mips/t-elf: Support crti and crtn.

2001-08-28  Alexandre Oliva  <aoliva@redhat.com>

        * jump.c (mark_jump_label): Fix typo: REG_LABEL is EXPR_LIST, not
        INSN_LIST.

2001-08-28  Richard Henderson  <rth@redhat.com>

        * config/ia64/ia64.md (andcmbi3, iorcmbi3): Fix typos.
        (one_cmplbi2 splitter): Remove redundant test.

2001-08-28  Dale Johannesen  <dalej@apple.com>

        * config/rs6000/darwin.h (DEFAULT_SIGNED_CHAR): Define.

2001-08-28  Danny Smith  <dannysmith@users.sourceforge.net>

        * config/i386/cygwin.h (BIGGEST_FIELD_ALIGNMENT): Set to 64.

2001-08-28  Stan Shebs  <shebs@apple.com>

        * config/darwin.h (ASM_OUTPUT_LABELREF): Handle '*' names.
        (UNALIGNED_SHORT_ASM_OP): Define.
        (UNALIGNED_INT_ASM_OP): Define.

2001-08-28  Will Cohen  <wcohen@redhat.com>

        * config/rs6000/rs6000.md (store_multiple): Correct RTL
        generation for first set.

2001-08-27  Roman Zippel  <zippel@linux-m68k.org>

        * flow.c (redirect_edge_succ_nodup): Return new edge.
        (try_simplify_condjump): Use new edge.
        * basic-block.h (redirect_edge_succ_nodup): Update prototype.

        * cse.c (cse_basic_block): Skip note instructions.

2001-08-27  Richard Henderson  <rth@redhat.com>

        * combine.c (combine_simplify_rtx): Don't reverse condition
        if there is no reverse for the condition.
        (simplify_comparison): Don't simplify subregs from INT to FP.

        * config/m68k/m68k.md (sordered, sordered_1, sunordered, sunordered_1,
        suneq, suneq_1, sunge, sunge_1, sungt, sungt_1, sunle, sunle_1,
        sunlt, sunlt_1, sltgt, sltgt_1, fsogt_1, fsoge_1, fsolt_1, fsole_1,
        bordered, bunordered, buneq, bunge, bungt, bunle, bunlt, bltgt,
        bordered_rev, bunordered_rev, buneq_rev, bunge_rev, bungt_rev,
        bunle_rev, bunlt_rev, bltgt_rev): New patterns.

2001-08-27  Roman Zippel  <zippel@linux-m68k.org>

        * config/m68k/m68k.md (subreghi1ashrdi_const32, bsetmemqi,
        bsetmemqi+1, strict_low_part peephole): Fix SUBREG_BYTE offset.
        (pushqi1): New.
        (adddi_dilshr32, adddi_dishl32): Only data register can be
        source for mem destination.

        * expmed.c (store_bit_field): Ignore adjustment to bitpos
        and use bitnum to decide about register move.

2001-08-27  Richard Henderson  <rth@redhat.com>

        * genattr.c (main): Emit state_t even when not doing scheduling.

2001-08-27  Roman Zippel <zippel@linux-m68k.org>
            Richard Henderson  <rth@redhat.com>

        * gcse.c (reg_first_set, reg_last_set): Replace with ...
        (reg_avail_info, current_bb): ... these.
        (oprs_unchanged_p, record_last_reg_set_info): Use them.
        (compute_hash_table): Likewise.

2001-08-27  Roman Zippel <zippel@linux-m68k.org>

        * flow.c (verify_flow_info): Use checksums to verify edges.

2001-08-27  Richard Henderson  <rth@redhat.com>

        * genautomata.c (expand_automata): Always create a description.

2001-08-27  Geoffrey Keating  <geoffk@redhat.com>

        * optabs.c (expand_binop): Correctly handle the carry in multiword
        add/subtract operations.

2001-08-27  Fred Fish  <fnf@be.com>

        * ginclude/stddef.h: Fix typo, __SIZE__TYPE__ should be
        __SIZE_TYPE__.

2001-08-27  Geoffrey Keating  <geoffk@redhat.com>

        * reload.c (find_reloads_toplev): Back out this change:

        Wed Jul 26 19:44:05 2000   Hans-Peter Nilsson  <hp@axis.com>

        * reload.c (find_reloads_toplev): Reload a paradoxical subreg of a
        mem if the address is a mode_dependent_address_p.

2001-08-27  Vladimir Makarov  <vmakarov@touchme.toronto.redhat.com>

        * rtl.def (DEFINE_CPU_UNIT, DEFINE_QUERY_CPU_UNIT, EXCLUSION_SET,
        PRESENCE_SET, ABSENCE_SET, DEFINE_BYPASS, DEFINE_AUTOMATON,
        AUTOMATA_OPTION, DEFINE_RESERVATION, DEFINE_INSN_RESERVATION): New
        RTL constructions.

        * genattr.c (main): New variable num_insn_reservations.  Increase
        it if there is DEFINE_INSN_RESERVATION.  Output automaton based
        pipeline hazard recognizer interface.

        * genattrtab.h: New file.

        * genattrtab.c: Include genattrtab.h.
        (attr_printf, check_attr_test, make_internal_attr,
        make_numeric_value): Move protypes into genattrtab.h.  Define them
        as external.
        (num_dfa_decls): New global variable.
        (main): Process DEFINE_CPU_UNIT, DEFINE_QUERY_CPU_UNIT,
        DEFINE_BYPASS, EXCLUSION_SET, PRESENCE_SET, ABSENCE_SET,
        DEFINE_AUTOMATON, AUTOMATA_OPTION, DEFINE_RESERVATION,
        DEFINE_INSN_RESERVATION.  Call expand_automata and write_automata.

        * genautomata.c: New file.

        * rtl.h (LINK_COST_ZERO, LINK_COST_FREE): Remove them.

        * sched-int.h: (curr_state): Add the external definition for
        automaton pipeline interface.
        (haifa_insn_data): Add comments for members blockage and units.

        * target-def.h (TARGET_SCHED_USE_DFA_PIPELINE_INTERFACE,
        TARGET_SCHED_INIT_DFA_PRE_CYCLE_INSN,
        TARGET_SCHED_DFA_PRE_CYCLE_INSN,
        TARGET_SCHED_INIT_DFA_POST_CYCLE_INSN,
        TARGET_SCHED_DFA_POST_CYCLE_INSN,
        TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD,
        TARGET_SCHED_INIT_DFA_BUBBLES, TARGET_SCHED_DFA_BUBBLE): New
        macros.
        (TARGET_SCHED): Use the new macros.

        * target.h (use_dfa_pipeline_interface, init_dfa_pre_cycle_insn,
        dfa_pre_cycle_insn, init_dfa_post_cycle_insn, dfa_post_cycle_insn,
        first_cycle_multipass_dfa_lookahead, init_dfa_bubbles,
        dfa_bubble): New members in gcc_target.sched.

        * haifa-sched.c (insert_schedule_bubbles_p): New variable.
        (MAX_INSN_QUEUE_INDEX): New macro for automaton interface.
        (insn_queue): Redefine it as pointer to array.
        (NEXT_Q, NEXT_Q_AFTER): Use MAX_INSN_QUEUE_INDEX instead of
        INSN_QUEUE_SIZE.
        (max_insn_queue_index_macro_value): New variable.
        (curr_state, dfa_state_size, ready_try): New varaibles for
        automaton interface.
        (ready_element, ready_remove, max_issue): New function prototypes
        for automaton interface.
        (choose_ready): New function prototype.
        (insn_unit, blockage_range): Add comments.
        (unit_last_insn, unit_tick, unit_n_insns): Define them for case
        FUNCTION_UNITS_SIZE == 0.
        (insn_issue_delay, actual_hazard_this_instance, schedule_unit,
        actual_hazard, potential_hazard): Add comments.
        (insn_cost): Use cost -1 as undefined value.  Remove
        LINK_COST_ZERO and LINK_COST_FREE.  Add new code for automaton
        pipeline interface.
        (ready_element, ready_remove): New functions for automaton
        interface.
        (schedule_insn): Add new code for automaton pipeline interface.
        (queue_to_ready): Add new code for automaton pipeline interface.
        Use MAX_INSN_QUEUE_INDEX instead of INSN_QUEUE_SIZE.
        (debug_ready_list): Print newline when the queue is empty.
        (max_issue): New function for automaton pipeline interface.
        (choose_ready): New function.
        (schedule_block): Add new code for automaton pipeline interface.
        Print ready list before scheduling each insn.
        (sched_init): Add new code for automaton pipeline interface.
        Initiate insn cost by -1.
        (sched_finish): Free the current automaton state and finalize
        automaton pipeline interface.

        * sched-rgn.c: Include target.h.
        (init_ready_list, new_ready, debug_dependencies): Add new code for
        automaton pipeline interface.

        * sched-vis.c: Include target.h.
        (get_visual_tbl_length): Add code for automaton interface.
        (target_units, print_block_visualization):  Add comments.

        * Makefile.in (GETRUNTIME, HASHTAB, HOST_GETRUNTIME, HOST_HASHTAB,
        USE_HOST_GETRUNTIME, USE_HOST_HASHTAB, HOST_VARRAY): New variables.
        (sched-rgn.o, sched-vis.o): Add new dependency file target.h.
        (getruntime.o, genautomata.o): New entries.
        (genattrtab.o): Add new dependency file genattrtab.h.
        (genattrtab): Add new dependencies.  Link it with `libm.a'.
        (getruntime.o, hashtab.o): New entries for canadian cross.

        * doc/md.texi: Description of automaton based model.

        * doc/tm.texi (TARGET_SCHED_ISSUE_RATE, TARGET_SCHED_ADJUST_COST):
        Add comments.
        (TARGET_SCHED_USE_DFA_PIPELINE_INTERFACE,
        TARGET_SCHED_DFA_PRE_CYCLE_INSN,
        TARGET_SCHED_INIT_DFA_PRE_CYCLE_INSN,
        TARGET_SCHED_DFA_POST_CYCLE_INSN,
        TARGET_SCHED_INIT_DFA_POST_CYCLE_INSN,
        TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD,
        TARGET_SCHED_INIT_DFA_BUBBLES, TARGET_SCHED_DFA_BUBBLE): The new
        hook descriptions.
        (TRADITIONAL_PIPELINE_INTERFACE, DFA_PIPELINE_INTERFACE,
        MAX_DFA_ISSUE_RATE): New macro descriptions.

        * doc/contrib.texi: Add dfa based scheduler contribution.

        * doc/gcc.texi: Add more information about genattrtab.

2001-08-27  Diego Novillo  <dnovillo@redhat.com>

        * flow.c (flow_loop_dump): Do not display insn UIDs if this is not
        an RTL basic block.

2001-08-27  Richard Henderson  <rth@redhat.com>

        * function.c (expand_function_end): Don't init arg_pointer_save_area.
        (get_arg_pointer_save_area): New.  Create an init it here.
        (fix_lexical_addr): Use it.
        * function.h: Declare it.
        * builtins.c (expand_builtin_setjmp_receiver): Use it.
        * stmt.c (expand_nl_goto_receiver): Use it.

2001-08-27  Richard Henderson  <rth@redhat.com>

        * final.c (final_scan_insn): Don't enter APP_ON mode for
        empty asm strings.

        * dwarf2asm.c (dw2_asm_output_encoded_addr_rtx): Use proper
        alignment for assemble_integer for DW_EH_PE_aligned.
        * except.c (output_function_exception_table): Likewise.

2001-08-26  Andreas Jaeger  <aj@suse.de>

        * c-tree.h: Add prototyp for c_sizeof_nowarn.

2001-08-25 Dan Nicolaescu  <dann@ics.uci.edu>

        * ssa-ccp.c (ssa_const_prop): Free ssa_edges.

2001-08-27  Alan Modra  <amodra@bigpond.net.au>

        * config/rs6000/rs6000.c (mask_operand): Rewrite without
        bit-shifting loop.
        (mask64_operand): Likewise.
        (rldic_operand): Delete.
        (includes_lshift64_p): Delete.
        (includes_rldic_lshift_p): New function.
        (includes_rldicr_lshift_p): New function.
        (print_operand): Don't call rldic_operand in case 'W'.
        * config/rs6000/rs6000-protos.h (rldic_operand): Remove.
        (includes_lshift64_p): Remove.
        (includes_rldic_lshift_p): Declare.
        (includes_rldicr_lshift_p): Declare.
        * config/rs6000/rs6000.h (PREDICATE_CODES): Remove rldic_operand.
        * config/rs6000/rs6000.md <ashldi3_internal 64 bit patterns>:
        Replace match_operand rldic_operand predicate with
        const_int_operand.  Replace includes_lshift64_p condition with
        includes_rldic_lshift_p.
        <ashldi3_internal 64 bit rldicr patterns>: New.

2001-08-27  Andreas Jaeger  <aj@suse.de>

        * emit-rtl.c: Use VA_OPEN/VA_CLOSE/VA_FIXEDARG throughout.
        * errors.c: Likewise.
        * final.c: Likewise.
        * dwarf2asm.c: Likewise.
        * doprint.c (checkit): Likewise.
        * diagnostic.c: Likewise.
        * collect2.c: Likewise.
        * calls.c: Likewise.
        * c-semantics.c (build_stmt): Likewise.
        * c-format.c (status_warning): Likewise.
        * c-errors.c (pedwarn_c99): Likewise.
        * builtins.c (validate_arglist): Likewise.
        * config/pj/pj.c (pj_printf): Likewise.
        * fix-header.c: Likewise.
        * gcc.c: Likewise.
        * gcov.c (fnotice): Likewise.
        * gensupport.c (message_with_line): Likewise.
        * mips-tfile.c: Likewise.
        * protoize.c (notice): Likewise.
        * read-rtl.c (fatal_with_file_and_line): Likewise.
        * rtl-error.c: Likewise.
        * tradcpp.c: Likewise.
        * tree.c: Likewise.
        * cp/tree.c (build_min_nt): Likewise.
        (build_min): Likewise.
        * cp/lex.c: Likewise.
        * cp/errfn.c: Likewise.
        * cp/rtti.c (create_pseudo_type_info): Likewise.

Sun Aug 26 20:25:44 2001  Denis Chertykov  <denisc@overta.ru>

        * df.c (df_uses_record): Return after recording all uses
        in ASM_OPERANDS.

2001-08-26  Daniel Berlin  <dan@cgsoftware.com>

        * df.c (df_insn_modify): Realloc the INSN table here, if
        necessary, here, too.

2001-08-26  Aldy Hernandez  <aldyh@redhat.com>

        * config/mips/mips.c (mips_function_value): Handle complex return
        values.

2001-08-25  Hans-Peter Nilsson  <hp@bitrange.com>

        * reload1.c (reload): Make all entries in reg_equiv_memory_loc
        unshared.
        * reload.c (make_memloc): Copy result if it is still
        reg_equiv_memory_loc[regno] on return.
        (subst_reloads) [ENABLE_CHECKING]: Check that none of
        reg_equiv_constant, reg_equiv_memory_loc, reg_equiv_address and
        reg_equiv_mem are modified by the substitutions.

Sat Aug 25 23:07:35 CEST 2001  Jan Hubicka  <jh@suse.cz>

        * predict.c (expensive_function_p): New.
        * rtl.h (expensive_function_p): Declare.
        * i386.c (FAST_PROLOGUE_INSN_COUNT): New constant.
        (use_fast_prologue_epilogue): New static variable.
        (expand_prologue): Set it; emit short prologues if unset.
        (expand_epilogue): Likewise.

2001-08-22  Geoffrey Keating  <geoffk@redhat.com>

        * config.gcc: Add stormy16-*-elf case.
        * config/stormy16/stormy-abi: New file.
        * config/stormy16/stormy16-lib2.c: New file.
        * config/stormy16/stormy16-protos.h: New file.
        * config/stormy16/stormy16.c: New file.
        * config/stormy16/stormy16.h: New file.
        * config/stormy16/stormy16.md: New file.
        * config/stormy16/t-stormy16: New file.

Sat Aug 25 15:46:51 CEST 2001  Jan Hubicka  <jh@suse.cz>

        * i386.h (no-accumulate-outgoing-args): Use proper mask.

2001-08-24  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/rs6000.c (rs6000_initialize_trampoline): Function
        descriptor members are pointer size, not constant 4.
        * config/rs6000/rs6000.md (define_splits): Remove more unused
        constraints.

2001-08-24  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * sparc.h (ASM_OUTPUT_BYTE): Fix format specifier warning.

2001-08-24  Andreas Jaeger  <aj@suse.de>, rkl@connect.org.uk

        * cp/rtti.c (VPARAMS): Fix parameter.

2001-08-24  Zack Weinberg  <zackw@panix.com>

        * expmed.c: Default-#define HAVE_insv, HAVE_extv, and HAVE_extzv
        to zero.
        (mode_for_extraction): No need for #ifdefs.  Add default-case abort
        to switch.
        (store_bit_field): Eliminate insv_bitsize variable.  Put HAVE_insv
        in if controlling use of insv.
        (extract_bit_field): Likewise, for extv and extzv.

Fri Aug 24 17:27:46 CEST 2001  Jan Hubicka  <jh@suse.cz>

        * i386.md (movcc peep2): Fix load of 0.

2001-08-24  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * fold-const.c (tree_expr_nonnegative_p): Handle *_DIV_EXPR,
        *_MOD_EXPR, SAVE_EXPR and NON_LVALUE_EXPR.

2001-08-23  Jason Merrill  <jason_merrill@redhat.com>

        * c-pragma.h: Move weak_syms and weak_decls...
        * varasm.c: ...here.  Now static.
        (declare_weak, weak_finish, remove_from_pending_weak_list): Don't
        depend on HANDLE_PRAGMA_WEAK.

        * c-common.c (c_alignof, c_alignof_expr): Move here...
        * c-typeck.c: ...from here.
        * c-tree.h, c-common.h: Adjust.

2001-08-23  Bernd Schmidt  <bernds@redhat.com>

        * config/ia64/ia64.c (rws_update): If !pred, set write_count
        instead of incrementing it.

        * config/ia64/ia64.c (ia64_sched_reorder): When there's more than one
        asm ready, don't try to move them all into the same array element.

Thu Aug 23 17:21:43 CEST 2001  Jan Hubicka  <jh@suse.cz>

        * function.c (thread_prologue_and_epilogue_insns): Avoid
        fallthru flag on edge to exit.

        * i386.md (trunc?fsi splitter): Conditionionize for non-sse.

        * flow.c (delete_noop_moves, propagate_block_delete_insn): Purge
        dead edges.

2001-08-23  Lars Brinkhoff  <lars@nocrew.org>

        * config/mcore/mcore.h (MACHINE_DEPENDENT_SIMPLIFY): Remove.
        * config/mcore/mcore.c (mcore_dependent_simplify_rtx): Likewise.
        * config/mcore/mcore-protos.h (mcore_dependent_simplify_rtx):
        Remove prototype.

2001-08-23  Lars Brinkhoff  <lars@nocrew.org>

        * genconstants.c, genpreds.c, libfuncs.h, optabs.h, rtl-error.h:
        replace "GNU CC" with "GCC".

2001-08-23  Richard Henderson  <rth@redhat.com>

        * config/ia64/ia64.c (ia64_register_move_cost): Add mode arguemnt.
        Reorganize.  Handle ADDL like GR, add GR_AND_BR.  Handle TFmode.
        (ia64_secondary_reload_class): Need GR between AR/BR and anything.
        Need GR between FR and not GR_AND_FR.
        * config/ia64/ia64-protos.h (ia64_register_move_cost): Update.
        * config/ia64/ia64.h (reg_class): Add GR_AND_BR_REGS, move
        AR regs before GR regs.
        (REG_CLASS_NAMES, REG_CLASS_CONTENTS): Update.
        (PREFERRED_RELOAD_CLASS): Tweak for reordered classes.
        (REGISTER_MOVE_COST): Update.
        (MEMORY_MOVE_COST): Add GR_AND_FR_REGS.

2001-08-23  Richard Henderson  <rth@redhat.com>

        * regclass.c (init_reg_sets_1): Don't assume cost 2 within
        a register class.

2001-08-22  Geoffrey Keating  <geoffk@redhat.com>

        * reload1.c (emit_reload_insns): Don't look for notes
        on a NULL store_insn.

2001-08-22  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * sparc.c (uns_small_int): Don't reference a constant >32-bit.
        (addrs_ok_for_ldd_peep): Fix signed/unsigned warning.
        (sparc_flat_function_prologue, sparc_flat_function_epilogue): Fix
        format specifier warnings.
        (sparc_sched_reorder): Mark parameter with ATTRIBUTE_UNUSED.

2001-08-22  David Billinghurst <David.Billinghurst@riotinto.com>

        * config/i386/i386-protos.h: Correct declaration of
        i386_pe_asm_named_section.

2001-08-22  John David Anglin  <dave@hiauly1.hia.nrc.ca>

        * pa32-regs.h (CONDITIONAL_REGISTER_USAGE): Add declaration for
        variable i.
        * pa64-regs.h (CONDITIONAL_REGISTER_USAGE): Likewise.

2001-08-22  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cpperror.c (print_location): Don't show _Pragma.
        * cppfiles.c (_cpp_pop_file_buffer): Handle -include file pushing
        and file change callback generation here.
        (stack_include_file): Update use of cpp_push_buffer.
        * cpphash.h (_cpp_pop_file_buffer): Update prototype.
        (struct cpp_buffer): Remove type, pfile members.
        * cppinit.c (cpp_handle_option): Use free_chain.
        * cpplex.c (_cpp_lex_token): Don't do -include file pushing here.
        (skip_escaped_newlines, get_effective_char, lex_percent): Take
        a cpp_reader rather than a cpp_buffer.
        (skip_escaped_newlines, get_effective_char, skip_block_comment,
        skip_line_comment, parse_string, lex_percent, lex_dot,
        _cpp_lex_token): Update accordingly.
        * cpplib.c (_cpp_pop_buffer): Don't do file change callback
        generation here.
        (cpp_push_buffer): Update prototype.
        (run_directive): Update use of cpp_push_buffer.
        (_cpp_do__Pragma, cpp_define, cpp_define_builtin, cpp_undef,
        handle_assertion): Update use of run_directive.
        * cpplib.h (enum cpp_buffer_type): Remove.
        (cpp_push_buffer): Update prototype.
        * fix-header.c (read_scan_file): Update.

2001-08-22  Matt Kraai  <kraai@alumni.carnegiemellon.edu>

        * gcc.c (struct prefix_list): Change prefix to const char *.

2001-08-22  Matt Kraai  <kraai@alumni.carnegiemellon.edu>

        * final.c (final_scan_insn): Call ADDR_VEC_ALIGN on next insn.

2001-08-22  Jason Merrill  <jason_merrill@redhat.com>

        * explow.c (set_mem_attributes): Avoid returning a bogus alias set
        from a new MEM.

        * jump.c (squeeze_notes): Take parms by reference.  Handle END being
        a squeezable note.
        * rtl.h: Adjust.
        * ifcvt.c (dead_or_predicable): Adjust.
        * loop.c (find_and_verify_loops): Adjust.
        * stmt.c (expand_end_case): Adjust.
        * flow.c (merge_blocks_move_successor_nojumps): Adjust.  Modify the
        head and end insn pointers in the basic block, not just local copies.
        (merge_blocks_move_predecessor_nojumps): Likewise.

2001-08-22  Lars Brinkhoff  <lars@nocrew.org>

        * Makefile.in, alias.c, basic-block.h, bb-reorder.c, bitmap.c,
        bitmap.h, builtin-types.def, builtins.c, builtins.def,
        c-aux-info.c, c-common.c, c-common.def, c-common.h,
        c-convert.c, c-decl.c, c-dump.c, c-dump.h, c-errors.c,
        c-format.c, c-lang.c, c-lex.c, c-lex.h, c-parse.in,
        c-pragma.c, c-pragma.h, c-semantics.c, c-tree.h, c-typeck.c,
        caller-save.c, calls.c, collect2.c, collect2.h, combine.c,
        conditions.h, config.gcc, configure.frag, configure.in,
        conflict.c, convert.c, convert.h, cppspec.c, crtstuff.c,
        cse.c, cselib.c, cselib.h, dbxout.c, dbxout.h, defaults.h,
        dependence.c, df.c, df.h, diagnostic.c, diagnostic.h,
        doloop.c, dominance.c, dwarf.h, dwarf2.h, dwarf2asm.c,
        dwarf2asm.h, dwarf2out.c, dwarf2out.h, dwarfout.c,
        emit-rtl.c, errors.c, errors.h, except.c, except.h,
        exgettext, explow.c, expmed.c, expr.c, expr.h, final.c,
        fixproto, flags.h, flow.c, fold-const.c, fp-test.c,
        function.c, function.h, gbl-ctors.h, gcc.c, gcc.h, gcc.hlp,
        gccspec.c, gcov-io.h, gcse.c, genattr.c, genattrtab.c,
        gencheck.c, gencodes.c, genconfig.c, genemit.c,
        genextract.c, genflags.c, gengenrtl.c, genmultilib,
        genopinit.c, genoutput.c, genpeep.c, genrecog.c,
        gensupport.c, gensupport.h, ggc-callbacks.c, ggc-common.c,
        ggc-none.c, ggc-page.c, ggc-simple.c, ggc.h, global.c,
        graph.c, graph.h, gthr-aix.h, gthr-dce.h, gthr-posix.h,
        gthr-rtems.h, gthr-single.h, gthr-solaris.h, gthr-vxworks.h,
        gthr-win32.h, gthr.h, haifa-sched.c, halfpic.c, halfpic.h,
        hard-reg-set.h, hwint.h, ifcvt.c, input.h, insn-addr.h,
        integrate.c, integrate.h, jump.c, lcm.c, libgcc2.c,
        libgcc2.h, lists.c, local-alloc.c, loop.c, loop.h,
        machmode.def, machmode.h, main.c, mbchar.c, mbchar.h,
        mips-tdump.c, mips-tfile.c, mklibgcc.in, mkmap-flat.awk,
        mkmap-symver.awk, optabs.c, output.h, params.c, params.def,
        params.h, predict.c, predict.def, predict.h, prefix.c,
        prefix.h, print-rtl.c, print-tree.c, profile.c, protoize.c,
        read-rtl.c, real.c, real.h, recog.c, recog.h, reg-stack.c,
        regclass.c, regmove.c, regrename.c, regs.h, reload.c,
        reload.h, reload1.c, reorg.c, resource.c, resource.h, rtl.c,
        rtl.def, rtl.h, rtlanal.c, sbitmap.c, sbitmap.h,
        sched-deps.c, sched-ebb.c, sched-int.h, sched-rgn.c,
        sched-vis.c, sdbout.c, sdbout.h, sibcall.c, simplify-rtx.c,
        ssa-ccp.c, ssa-dce.c, ssa.c, ssa.h, stmt.c, stor-layout.c,
        stringpool.c, system.h, timevar.c, timevar.def, timevar.h,
        tlink.c, toplev.c, toplev.h, tree.c, tree.def, tree.h,
        tsystem.h, unroll.c, unwind-dw2-fde.c, unwind-dw2-fde.h,
        unwind-dw2.c, unwind-pe.h, unwind-sjlj.c, unwind.h,
        unwind.inc, varasm.c, varray.c, varray.h, xcoffout.c,
        xcoffout.h: replace "GNU CC" with "GCC".

2001-08-21  Richard Henderson  <rth@redhat.com>

        * final.c (LABEL_ALIGN_AFTER_BARRIER): Default to no alignment.
        (final_scan_insn): Consider jump tables data even if we have no
        independant text section if !JUMP_TABLES_IN_TEXT_SECTION.  Use
        ADDR_VEC_ALIGN.
        * config/ia64/ia64.h (JUMP_TABLES_IN_TEXT_SECTION): Remove.
        (ASM_OUTPUT_CASE_END): Remove.
        (ASM_OUTPUT_ADDR_DIFF_ELT): Emit pc-relative references.
        * config/ia64/ia64.md (tablejump): Decode pc-relative references.
        * config/ia64/sysv4.h (ASM_OUTPUT_BEFORE_CASE_LABEL): Remove.

2001-08-21  Richard Henderson  <rth@redhat.com>

        * config/ia64/ia64.c (emit_all_insn_group_barriers): Flush state
        at barrier insns.  Emit stop bits before barriers.

        * flow.c (flow_find_cross_jump): Don't consider unconditional
        return insns for commoning.

        * final.c (compute_alignments): Fix typo.

        * expmed.c (CODE_FOR_insv, gen_insv): Provide defaults.
        (CODE_FOR_extv, gen_extv, CODE_FOR_extzv, gen_extzv): Likewise.
        (store_bit_field): Use mode_for_extraction more places.
        (extract_bit_field): Likewise.

2001-08-21  Zack Weinberg  <zackw@panix.com>

        * caller-save.c: Don't include insn-codes.h.
        (reg_save_code, reg_restore_code): Make arrays of int.
        All uses updated to match.
        (insert_save, insert_restore): No need to initialize "code"
        variable upon declaration.
        * Makefile.in: update dependencies; fix typo in clean rule.

2001-08-21  Richard Henderson  <rth@redhat.com>

        * ifcvt.c (find_if_block): Allow join_bb as EXIT.
        (merge_if_block): Handle fallout from same.

2001-08-21  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (type_to_class): Fix typo in last change.

2001-08-21  Richard Henderson  <rth@redhat.com>

        * config/ia64/sysv4.h (ASM_OUTPUT_LABELREF): Don't emit '#' if
        ia64_asm_output_label.

        * config/ia64/crtbegin.asm (__do_global_dtors_aux): Use saved
        copy of gp while the real gp register contains garbage.

2001-08-21  Zack Weinberg  <zackw@panix.com>

        * expmed.c (mode_for_extraction): New function.
        (store_bit_field, extract_bit_field): Use it.
        * expr.h: Prototype it and provide an enum for its first argument.

        * combine.c, function.c, recog.c: Don't include insn-codes.h.
        Use mode_for_extraction rather than testing HAVE_insv/extv/extzv
        and digging through the insn_data tables.
        * Makefile.in: Update dependencies.

2001-08-22  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cppfiles.c (stack_include_file): line-map.c now handles include
        depth.
        (handle_missing_handler): Similarly.
        (_cpp_execute_include): Similarly.
        (_cpp_pop_file_buffer): Similarly.
        * cpphash.h (struct cpp_reader): Remove system_include_depth,
        buffer_stack_depth and include_depth.
        * cpplib.c (do_include_common): line-map.c now handles include depth.
        (cpp_push_buffer): Similarly.
        (_cpp_pop_buffer): Similarly.
        * cppmacro.c (builtin_macro): Update.
        * line-map.c (init_line_maps): Set depth.
        (add_line_map): Increment "used" earlier.  Update and use the
        include depth.
        (trace_include): Use the include depth.
        * line-map.h (struct line_maps): New member depth.

2001-08-21  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cppfiles.c (stack_include_file): Don't handle -H here.
        * cppinit.c (cpp_start_read): Set include tracing after
        cpp_post_options and after stacking the main file.
        * line-map.c (trace_include): New.
        (init_line_maps, add_line_map): Update.
        * line-map.h (struct line_maps): New member trace_includes.

2001-08-21  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cppfiles.c (stack_include_file): Harmonize system headerness tests.
        * cppfiles.c (stack_include_file): Only stack a file if there
        is something to do.  Return a boolean indicating whether a
        buffer was stacked or not.
        (_cpp_execute_include): Similarly.
        (_cpp_read_file): Similarly.
        * cpphash.h (_cpp_read_file, _cpp_execute_include): Update prototypes.

2001-08-21  Sam Steingold  <sds@gnu.org>

        * tradcpp.c (rescan): define obufp_before_macroname before RECACHE
        (RECACHE): keep obufp_before_macroname up to date

2001-08-21  Zack Weinberg  <zackw@panix.com>

        * stmt.c: Don't include insn-codes.h.
        (expand_end_case): Machine specific logic moved to expr.c.
        No need to worry about __builtin_classify_type.
        (check_for_full_enumeration_handling, emit_case_nodes):
        Kill #if 0 blocks.

        * builtins.o (expand_builtin_classify_type): Split up so code
        can be shared with fold_builtin_classify_type.
        (type_to_class, fold_builtin_classify_type): New functions.
        (fold_builtins): Handle __builtin_classify_type.

        * expr.c (do_tablejump): Now static.
        (case_values_threshold, try_casesi, try_tablejump): New;
        code mostly from stmt.c (expand_end_case).
        (expr.h): Update prototypes.

        * Makefile.in (stmt.o): Update dependencies.

2001-08-21  Will Cohen  <wcohen@redhat.com>

        * configure/alpha/alpha.h (CONDITIONAL_REGISTER_USAGE): Added local
        declaration of variable i.
        * configure/rs6000/rs6000.h (CONDITIONAL_REGISTER_USAGE): Added local
        declaration of variable i.

2001-08-21  Richard Henderson  <rth@redhat.com>

        * crtstuff.c: Fix thinko last change.  Move list tails to start
        of CRT_END section.  Tidy ifdefs.
        (__EH_FRAME_BEGIN__): Always static for ELF.
        (__do_global_ctors_1): Rename from __frame_dummy.
        * config/mips/iris6.h (LINK_SPEC): Update for __do_global_ctors_1
        name change; don't hide __EH_FRAME_BEGIN__.

2001-08-21  Richard Henderson  <rth@redhat.com>

        * gdbinit.in: Move break on exit after break on fancy_abort.

        * config/ia64/ia64.c (ia64_return_in_memory): True for variable
        sized types.

2001-08-21  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cpphash.h (_cpp_push_next_buffer): New.
        * cppinit.c (do_includes): Remove.
        (push_include, free_chain, _cpp_push_next_buffer): New.
        (cpp_start_read): Use them to rework command line option handling.
        (cpp_handle_option): Combine handling of -include and -imacros.
        * cpplex.c (_cpp_lex_token): Push a new -include buffer if
        appropriate.  Always insert missing \n at EOF.
        * cpplib.c (start_directive): Get the directive position right.
        * cppmain.c (cb_file_change): Always print the first line, unless
        preprocessed.

2001-08-20  Andreas Jaeger  <aj@suse.de>

        * profile.c (compute_branch_probabilities): Remove extra new-line
        in error message.
        * flow.c (verify_flow_info): Likewise.

2001-08-20  Diego Novillo  <dnovillo@redhat.com>

        * basic-block.h (basic_block): Add new field 'flags'.
        (BB_REACHABLE): Define.
        (expunge_block): Declare.
        * flow.c (ENTRY_BLOCK_PTR): Initialize field 'flags'.
        (EXIT_BLOCK_PTR): Ditto.
        (expunge_block): Remove static declaration.
        (cleanup_cfg): Clear bb->aux on every basic block.
        (find_unreachable_blocks): Set BB_REACHABLE bit in bb->flags when
        computing reachability.
        (delete_unreachable_blocks): Delete block b if b->flags has
        BB_REACHABLE unset.

2001-08-20  Diego Novillo  <dnovillo@redhat.com>

        * doc/invoke.texi: Replace references to -fdump-tree with -fdump-ast.

2001-08-20  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * sparc.c (sparc_variable_issue): Fix typo in last change.

2001-08-20  Richard Henderson  <rth@redhat.com>

        * varasm.c (assemble_integer): Document ppc-eabi -mrelocatable losage.

2001-08-20  John David Anglin  <dave@hiauly1.hia.nrc.ca>

        * pa.h (RETURN_IN_MEMORY): Improve comment.

2001-08-20  Janis Johnson  <janis187@us.ibm.com>

        * doc/invoke.texi (Profiling options): Clarify the interactions
        between -fprofile-arcs and -ftest-coverage, -fprofile-arcs.

2001-08-20  Jeffrey Oldham  <oldham@codesourcery.com>

        * crtstuff.c (__do_global_ctors): Fix typo in preprocessing
        command.

2001-08-20  Matt Kraai  <kraai@alumni.carnegiemellon.edu>

        * gcc.c (make_relative_prefix): Allocate a sufficiently large
        buffer.

2001-08-20  Richard Henderson  <rth@redhat.com>

        * final.c (end_final): Fix typo last change.

2001-08-20  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cppinit.c (init_standard_includes): The returned buffer
        is already malloc-ed.
        * gcc.c (add_prefix): Similarly.
        * prefix.c (translate_name): Update to support clear buffer
        ownership rules.
        (update_path): Similarly.  Be sure to free any newly allocated
        key.  UPDATE_PATH_HOST_CANONICALIZE takes only one argument.
        (tr): New function.
        * prefix.h (update_path): Update prototype and document.
        * config/i386/xm-djgpp.h (UPDATE_PATH_HOST_CANONICALIZE): Clean
        up and update to new buffer ownership rules.
        * doc/gcc.texi (UPDATE_PATH_HOST_CANONICALIZE): Update.

Mon Aug 20 01:44:50 CEST 2001  Jan Hubicka  <jh@suse.cz>

        * final.c (compute_alignments): New function.
        (init_insn_lengths): Do not care label_align.
        (LABEL_ALIGN_AFTER_BARRIER): Default to 1.
        (LABEL_ALIGN_AFTER_BARRIER_MAX_SKIP): Default to 0.
        (JUMP_ALIGN, JUMP_ALIGN_MAX_SKIP): New.
        (shorted_branches): Realloc label_align array; do
        not call init_insn_lengths; Do not care about loop alignments.
        * output.h (compute_alignments): Declare.
        * toplev.c (rest_of_compilation): Call compute_alignments.
        * tm.texi (JUMP_ALIGN, JUMP_ALIGN_MAX_SKIP): Document.

        * predict.c (block_info_def): Add npredecesors, remove nvisited;
        change visited to tovisit.
        (propagate_freq): Use faster traversing algorithm.
        (estimate_loops_at_level, estimate_bb_frequencies): Change visited
        to tovisit; reverse meaning.

        * predict.c (struct block_info_def): Remove nvisited.
        (propagate_freq): Use EDGE_DFS_BACK to detect irreducible regions.
        (estimate_bb_frequencies): Call mark_dfs_back_edges.

2001-08-19  Geoffrey Keating  <geoffk@redhat.com>

        * doc/invoke.texi (MIPS Options): Document -mfused-madd.
        * config/mips/mips.h (MASK_NO_FUSED_MADD): New.
        (TARGET_FUSED_MADD): New.
        (TARGET_SWITCHES): Add -mfused-madd, -mno-fused-madd.
        * config/mips/mips.md: Add TARGET_FUSED_MADD as condition to
        the multiply-add instructions.

2001-08-19  Richard Henderson  <rth@redhat.com>

        * dwarf2asm.c (dw2_output_indirect_constant_1): The symbol ref
        is aligned to pointer size.

2001-08-19  Richard Henderson  <rth@redhat.com>

        * config/ia64/ia64.c (ia64_cycle_display): Only emit cycle
        display markers during final schedule.

2001-08-19  Richard Henderson  <rth@redhat.com>

        * function.c (gen_mem_addressof): Don't call get_alias_set if no decl.

2001-08-19  Richard Henderson  <rth@redhat.com>

        * config/ia64/ia64.h (STRIP_NAME_ENCODING): Handle @ and *
        in the same string.
        (ASM_NAME_TO_STRING): Remove.
        * config/ia64/sysv4.h (ASM_OUTPUT_LABELREF): Handle @ and *
        in the same string.  Remove support for expressions.

2001-08-19  Richard Henderson  <rth@redhat.com>

        * config/i386/i386.md (tablejump): Make an expander; handle
        pic relative addressing here.
        (tablejump_1): Rename from tablejump_pic.
        (casesi): Remove.

2001-08-19  Richard Henderson  <rth@redhat.com>

        * regclass.c (fix_register): Fix typo.

2001-08-18  Richard Henderson  <rth@redhat.com>

        * config/ia64/unwind-ia64.c (UNW_REG_B0): New.
        (struct _Unwind_Context): Expand br_loc to hold it.
        (uw_frame_state_for): Handle leaf functions better.
        (uw_update_reg_address): Update for br_loc change.

2001-08-18  Richard Henderson  <rth@redhat.com>

        * crtstuff.c: Move list heads before code that uses them.
        (__JCR_LIST__): Remove initial null.
        (frame_dummy, __frame_dummy): Do java registration here ...
        (__do_global_ctors_aux): ... not here.

        * config/ia64/crtbegin.asm (dtor_ptr): Make gp-relative.
        (__do_global_dtors_aux): Update to match.
        (__JCR_LIST__, __do_jv_register_classes): New.
        (.init): Call it.
        * config/ia64/crtend.asm (__JCR_END__): New.
        (__do_global_ctors_aux): Use a GPREL64I reloc to __CTOR_END__
        instead of an indirect LTOFF22 reloc.

2001-08-18  Richard Henderson  <rth@redhat.com>

        * flow.c (mark_regs_live_at_end): Use regs_invalidated_by_call.
        * regclass.c (init_reg_sets_1): Fix typo.
        * config/ia64/ia64.c (ar_pfs_reg_operand): New.
        (ia64_expand_call): Pass ar.pfs to sibcall expanders.
        (ia64_compute_frame_size): Make ar.unat live when in use.
        (ia64_epilogue_uses): Reformat; do not check current_function_is_leaf
        for ar.pfs; remove ar.unat handling.
        * config/ia64/ia64.h (CALL_REALLY_USED_REGISTERS): ar.unat is
        call-saved.
        (PREDICATE_CODES): Add ar_pfs_reg_operand.
        * config/ia64/ia64-protos.h: Update decls.
        * config/ia64/ia64.md (sibcall_nopic): Use ar.pfs.
        (sibcall_pic): Likewise.

2001-08-18  Richard Henderson  <rth@redhat.com>

        * config/ia64/ia64.c (ia64_sched_reorder2): Also skip past
        pred_rel_mutex when searching for insn_group_barrier.
        * config/ia64/ia64.md (cycle_display): Combine the expander
        and insn patterns.

        * config/ia64/ia64.c (ia64_internal_sched_reorder): Emit stop
        bit before asm as needed.

2001-08-18  Richard Henderson  <rth@redhat.com>

        * timevar.def (TV_MACH_DEP): New.
        * toplev.c (rest_of_compilation): Use it.
        * config/ia64/ia64.c (ia64_reorg): Push to TV_SCHED2.

2001-08-18  Zack Weinberg  <zackw@panix.com>

        * unwind-dw2.c (execute_stack_op): Add default aborts to
        the inner switches to prevent warnings.

2001-08-18  Richard Henderson  <rth@redhat.com>

        * timevar.h (struct timevar_time_def): Change element type to float.
        (ticks_to_msec, clocks_to_msec): Likewise.
        (TICKS_TO_MSEC, CLOCKS_TO_MSEC): Rescale to seconds; use type float.
        (get_time): Likewise.
        (timevar_print): Adjust zero check and printing to match.

2001-08-18  Zack Weinberg  <zackw@panix.com>

        * doc/extend.texi, doc/gcc.texi, doc/install-old.texi,
        doc/invoke.texi, doc/md.texi, doc/rtl.texi, doc/include/gpl.texi:
        Eliminate overfull or underfull hboxes.

2001-08-18  Zack Weinberg  <zackw@panix.com>

        * cpperror.c: Use VA_OPEN/VA_CLOSE/VA_FIXEDARG throughout.

2001-08-18  Zack Weinberg  <zackw@panix.com>

        * haifa-sched.c: Convert to target hooks.  Macros replaced
        are ISSUE_RATE, ADJUST_COST, ADJUST_PRIORITY, MD_SCHED_INIT,
        MD_SCHED_REORDER, MD_SCHED_REORDER2, MD_SCHED_VARIABLE_ISSUE,
        MD_SCHED_FINISH, and HAVE_cycle_display.
        * target-def.h (TARGET_SCHED_ADJUST_COST,
        TARGET_SCHED_ADJUST_PRIORITY, TARGET_SCHED_ISSUE_RATE,
        TARGET_SCHED_VARIABLE_ISSUE, TARGET_SCHED_INIT,
        TARGET_SCHED_FINISH, TARGET_SCHED_REORDER,
        TARGET_SCHED_REORDER2, TARGET_SCHED_CYCLE_DISPLAY):
        New hook #defines to be overridden.
        (TARGET_SCHED): Bring them all together.
        (TARGET_INITIALIZER): Update.
        * target.h: Don't forward declare struct rtx_def.  Use 'rtx'
        instead of 'struct rtx_def *' throughout.
        (struct sched): New set of hooks for the scheduler.
        * Makefile.in (haifa-sched.o): Depend on target.h.
        * doc/tm.texi: Document the new scheduler hooks, together in
        their own section, instead of scattered around.
        Fix a bunch of underfull/overfull hboxes.

        * a29k.h, alpha.h, arm.h, c4x.h, convex.h, d30v.h, i386.h,
        ia64.h, m32r.h, m88k.h, mips.h, pa.h, rs6000.h, s390.h, sh.h,
        sparc.h: Don't define any of the old scheduler macros.

        * a29k.c, alpha.c, arm.c, c4x.c, convex.c, d30v.c, i386.c,
        ia64.c, m32r.c, m88k.c, mips.c, pa.c, rs6000.c, s390.c, sh.c,
        sparc.c: Create hook functions from code extracted from
        corresponding target header, or make existing hooks static, as
        appropriate.  Set the appropriate entries in targetm.

        * alpha-protos.h, arm-protos.h, c4x-protos.h, d30v-protos.h,
        i386-protos.h, ia64-protos.h, m32r-protos.h, pa-protos.h,
        rs6000-protos.h, s390-protos.h, sparc-protos.h:
        Remove prototypes for functions which are now static.

        * d30v.h, d30v.c, m32r.h, m32r.c: Remove #ifdef HAIFA and
        related gunk; the Haifa scheduler is now the only choice.

2001-08-18  Zack Weinberg  <zackw@panix.com>

        * optabs.h (OTI_flodiv, flodiv_optab): Kill.
        * genopinit.c: Put floating point divide insns in sdiv_optab.
        * expr.c (expand_expr): Use sdiv_optab, not flodiv_optab.
        * config/gofast.h, config/c4x/c4x.h,
        config/ia64/hpux_longdouble.h, config/mips/mips.h,
        config/pa/long_double.h, config/rs6000/sysv4.h,
        config/sparc/sparc.h: Put floating point divide libcalls in sdiv_optab.
        * optabs.c (init_optab): Break into new_optab, init_optab, init_optabv.
        (init_optabs): Use init_optabv for overflow-trapping optabs.
        Don't init flodiv_optab.  Give mov_optab, movstrict_optab, and
        cmp_optab RTX codes so have_insn_for can find them.

        * optabs.c (expand_simple_binop, expand_simple_unop,
        have_insn_for, gen_sub3_insn): New interfaces.
        * expr.h: Prototype new functions.
        (enum optab_methods): Move here from optabs.h.

        * builtins.c, combine.c, doloop.c, function.c, ifcvt.c,
        loop.c, profile.c, simplify-rtx.c, stmt.c, unroll.c:
        Use new functions instead of working directly with optabs.
        * doloop.c, ifcvt.c, loop.c, profile.c, simplify-rtx.c,
        unroll.c: Don't include optabs.h.
        * caller-save.c, combine.c, function.c, stmt.c: Just include
        insn-codes.h, not optabs.h.
        * Makefile.in: Update dependencies.

        * combine.c (make_compound_operation, simplify_comparison):
        Fix typos testing for this or that instruction.

2001-08-18  Herman A.J. ten Brugge  <Haj.Ten.Brugge@net.HCC.nl>

        * mklibgcc.in: Prefer LIB1ASMFUNCS over LIB2_DIVMOD_FUNCS when
        generating libgcc.a.

2001-08-18  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * except.c (TYPE_HASH): Delete.

        * objc/objc-act.c (HASHFUNCTION): Cast to size_t, not
        HOST_WIDE_INT.

        * tree.c (TYPE_HASH): Delete.

        * tree.h (TYPE_HASH): Define.

2001-08-18  Graham Stott  <grahams@redhat.com>

        * config/mips/mips.md (adddi3_internal_2+1): Remove contraints from
        define_split.
        (adddi3_internal_2+2): Likewise.
        (eh_set_lr_di+1): Likewise.

2001-08-17  Richard Henderson  <rth@redhat.com>

        * defaults.h (UNALIGNED_SHORT_ASM_OP, UNALIGNED_INT_ASM_OP,
        UNALIGNED_DOUBLE_INT_ASM_OP, ASM_BYTE_OP): Move from ...
        * dwarf2asm.c: ... here.
        * dwarfout.c: Remove them.

        * varasm.c (assemble_integer): Add align parameter.
        (assemble_real, output_constant, output_constructor): Likewise.
        * output.h: Update decls.
        * dwarf2asm.c, final.c, varasm.c, config/darwin.c, config/nextstep.c,
        config/alpha/alpha.c, config/arm/arm.md, config/clipper/clipper.c,
        config/m88k/m88k.c, config/mcore/mcore.md, config/mips/mips.h,
        config/mips/mips.md, config/pa/pa.c, config/rs6000/rs6000.c,
        config/rs6000/rs6000.h, config/s390/s390.h, config/sh/sh.md:
        Update all callers.

        * final.c (end_final): Abort profile block generation if we
        havn't layed it out properly.
        * output.h (assemble_eh_integer): Remove stale decl.
        * varasm.c (assemble_zeros): Tidy; use assemble_integer.
        (min_align): New.
        (assemble_integer): Handle unaligned data.
        (assemble_real): Abort on unaligned data.
        (output_constructor): Don't assume ASM_OUTPUT_ALIGN 0 does
        anything useful.
        (default_dtor_section_asm_out_destructor): Use assemble_align.
        (default_named_section_asm_out_constructor): Likewise.
        (default_ctor_section_asm_out_constructor): Likewise.
        * config/darwin.c (machopic_asm_out_constructor): Likewise.
        (machopic_asm_out_destructor): Likewise.
        * config/nextstep.c (nextstep_asm_out_constructor): Likewise.
        (nextstep_asm_out_destructor): Likewise.
        * config/alpha/alpha.c (vms_asm_out_constructor): Likewise.
        (vms_asm_out_destructor): Likewise.

2001-08-17  Richard Henderson  <rth@redhat.com>

        * config/mips/iris6.h (TARGET_IRIX6): New.
        (current_section_name, current_section_flags): New.
        (ASM_OUTPUT_ALIGN, ASM_FILE_START, ASM_FILE_END): New.
        (MAX_OFILE_ALIGNMENT): New.
        (ASM_OUTPUT_ALIGNED_LOCAL): Use bss_section.
        * config/mips/mips.c (mips_make_temp_file, temp_filename): Remove.
        (copy_file_data): Split out from
        (mips_asm_file_end): ... here.
        (mips_asm_file_start): Remove extra .section directive.  Use
        tmpfile instead of mips_make_temp_file.
        (mips_unique_section): Use const char * as needed for warnings.
        (iris6_asm_named_section_1): Renamed from iris6_asm_named_section;
        re-add align parameter.
        (iris6_asm_named_section): New.
        (iris_section_align_entry_eq, iris_section_align_entry_hash): New.
        (iris6_asm_output_align, iris6_section_align_1): New.
        (iris6_asm_file_start, iris6_asm_file_end): New.
        * config/mips/mips-protos.h: Update decls.

2001-08-17  Janis Johnson  <janis187@us.ibm.com>

        * doc/install.texi (Install GCC): Add links to build status pages.
        (Specific): Ditto.
        (Final install): Ditto; request updates for specific info

2001-08-17  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cpperror.c (print_location):  Don't take a file name; use the
        line map instead.
        (_cpp_begin_message): Similarly.
        (cpp_ice, cpp_fatal, cpp_error, cpp_error_with_line, cpp_warning,
        cpp_warning_with_line, cpp_pedwarn, cpp_pedwarn_with_line): Update.
        (cpp_pedwarn_with_file_and_line): Remove.
        * cppfiles.c (stack_include_file): Update; set filename to stdin
        here when appropriate.
        * cpphash.h (struct cpp_buffer): Remove nominal_fname.
        (_cpp_begin_message): Don't take a file name.
        * cppinit.c: Add comment.
        * cpplex.c: Fix end-of-directive indicator.
        * cpplib.c: Don't include intl.h.
        (run_directive, do_diagnostic): Update.
        (do_line): Update to not use nominal_fname.
        (cpp_push_buffer): Don't take a filename.
        * cpplib.h (struct ht): Remove.
        (cpp_push_buffer): Don't take a filename.
        (cpp_pedwarn_with_file_and_line): Remove.
        * cppmacro.c (struct cpp_macro): Remove file.
        (builtin_macro): Update.
        (_cpp_create_definition): Update.
        * cppmain.c: Correct comment.
        * fix-header.c (read_scan_file): Update.

2001-08-17  Kazu Hirata  <kazu@hxi.com>

        * sbitmap.c: Fix comment formatting.
        * sched-deps.c: Likewise.
        * sibcall.c: Likewise.
        * simplify-rtx.c: Likewise.
        * ssa.c: Likewise.
        * ssa-ccp.c: Likewise.
        * stor-layout.c: Likewise.
        * timevar.c: Likewise.
        * toplev.c: Likewise.
        * unwind-dw2.c: Likewise.
        * unwind-dw2-fde.c: Likewise.
        * varasm.c: Likewise.

2001-08-17  John David Anglin  <dave@hiauly1.hia.nrc.ca>

        * pa.h (RETURN_IN_MEMORY): Return types with a size that is varable
        or larger than an integer in memory.

2001-08-17  Zack Weinberg  <zackw@panix.com>

        * system.h: Forward-declare struct rtx_def, struct rtvec_def,
        and union tree_node.  Typedef rtx, rtvec, and tree.  Fix comment.
        * rtl.h: Don't forward-declare union tree_node here.  Don't
        typedef rtx or rtvec here.  Change all uses of struct rtx_def *,
        struct rtvec_def *, or union tree_node * to use rtx, rtvec,
        and tree respectively.
        * tree.h: Don't forward-declare struct rtx_def here.  Don't
        typedef tree here.  Change all uses of struct rtx_def *,
        struct rtvec_def *, or union tree_node * to use rtx, rtvec,
        and tree respectively.

2001-08-17  Richard Henderson  <rth@redhat.com>

        * config/mips/elf.h, config/mips/elf64.h, config/mips/netbsd.h,
        config/mips/openbsd.h: Fix typos last change.

2001-08-17  Gerald Pfeifer  <pfeifer@dbai.tuwien.ac.at>

        * doc/invoke.texi (Optimize Options): The default for
        -finline-limit is 600.

2001-08-17  Richard Henderson  <rth@redhat.com>

        * varasm.c (text_section): Allow TEXT_SECTION to override the
        printing of TEXT_SECTION_ASM_OP.
        * dwarf2out.c (TEXT_SECTION_NAME): Rename from TEXT_SECTION.
        (DATA_SECTION, BSS_SECTION): Remove.
        * dwarfout.c (TEXT_SECTION_NAME, DATA_SECTION_NAME, DATA1_SECTION_NAME,
        RODATA_SECTION_NAME, RODATA1_SECTION_NAME, BSS_SECTION_NAME):
        Rename from s/_NAME//.
        * config/mips/mips.h (TARGET_FILE_SWITCHING): Add !TARGET_MIPS16.
        (ASM_DECLARE_FUNCTION_NAME): Move file switching ...
        (TEXT_SECTION): ... here.  New.
        * config/mips/elf.h (TEXT_SECTION): New; no file switching.
        * config/mips/elf64.h, config/mips/netbsd.h: Likewise.
        * config/mips/openbsd.h: Likewise.
        * config/mips/mips.c (mips_asm_file_start): Tidy file switching test.
        (mips_asm_file_end): Likewise test.
        (mips_output_function_epilogue): Likewise.  Switch back to data
        section after emitting the function.

        * doc/tm.texi (Sections): Document TEXT_SECTION.

2001-08-17  Richard Henderson  <rth@redhat.com>

        * dwarf2out.c (dwarf2out_init): Don't emit .debug_loc label here.
        (dwarf2out_finish): Do it here.  Emit .debug_loc before .debug_info.

2001-08-17  Richard Henderson  <rth@redhat.com>

        * varasm.c (assemble_variable): Don't overalign if DECL_USER_ALIGN.
        * crtstuff.c (__CTOR_LIST__, __DTOR_LIST__, __EH_FRAME_BEGIN__,
        __JCR_LIST__, __CTOR_END__, __DTOR_END__, __FRAME_END__,__JCR_END__):
        Add aligned attribute.

2001-08-17  Andrew Haley  <aph@cambridge.redhat.com>

        * config/sh/sh.md: Add modes to unspecs in first insn to match
        those in the second.

        * Makefile.in: Fix collect2 copy for Cygwin.

Fri Aug 17 15:48:57 CEST 2001  Jan Hubicka  <jh@suse.cz>

        Install the proper patch.
        * function.c (put_var_into_stack): Temporarily clear DECL_RTL.
        (assign_params): Avoid setting DECL_RTL to unfinished RTX.
        (expand_function_start): Likewise.
        * stmt.c (expand_decl): Likewise.
        * varasm.c (make_decl_rtx): Likewise.

Fri Aug 17 15:41:35 CEST 2001  Jan Hubicka  <jh@suse.cz>

        * final.c: Undo my previous accidental checkin.
        * output.h: Likewise.
        * tm.texi: Likewise.

2001-08-16  Richard Henderson  <rth@redhat.com>

        * varasm.c (named_section_flags): Remove align parameter.
        * varasm.c, dwarf2out.c: Update all callers.
        * output.h: Update prototypes.

        * target.h (target.asm_out.named_section): Remove align parameter.
        * varasm.c, config/a29k/a29k.c, config/alpha/alpha.c,
        config/arm/arm.c, config/c4x/c4x.c, config/h8300/h8300.c,
        config/i386/i386.c, config/i386/winnt.c, config/m68k/m68k.c,
        config/mcore/mcore.c, config/mips/mips.c, config/rs6000/rs6000.c,
        config/sh/sh.c, config/sparc/sparc.c: Update implementations to match.

        * varasm.c (in_named_entry_eq, in_named_entry_hash): New.
        (get_named_section_flags, set_named_section_flags): New.
        (named_section_flags): Use them.
        (named_section): Do decl vs section flags check here...
        (default_section_type_flags): ... not here.
        (init_varasm_once): Create in_named_htab.
        (resolve_unique_section): Mark reloc unused.

2001-08-16  Richard Henderson  <rth@redhat.com>

        * varasm.c (force_const_mem): Keep pool alignment in bits.
        (output_constant_pool): Use assemble_align.

2001-08-16  Zack Weinberg  <zackw@panix.com>

        * doc/tm.texi: Remove extra @table command.

2001-08-16  Zack Weinberg  <zackw@panix.com>

        * final.c (shorten_branches): Clear the end of the label_align
        array only if we made it larger.  Break up messy expressions
        for clarity.

        * diagnostic.c (internal_error): Check for error recursion
        before doing ICE suppression.

        * timevar.c: Timing variables now count in milliseconds.
        (init_timevar): Set up ticks_to_msec and clocks_to_msec here.
        (get_time): Not here.
        (timevar_print): Don't print any timer whose user, cpu, and
        wall times are all zero as displayed.
        * timevar.h: Update comment aboout units.  Make timevar
        counters unsigned.

Thu Aug 16 17:39:45 CEST 2001  Jan Hubicka  <jh@suse.cz>

        * function.c (put_var_into_stack): Temporarily clear DECL_RTL.
        (assign_params): Avoid setting DECL_RTL to unfinished RTX.
        (expand_function_start): Likewise.
        * stmt.c (expand_decl): Likewise.
        * varasm.c (make_decl_rtx): Likewise.

2001-08-16  Jason Merrill  <jason_merrill@redhat.com>

        * stor-layout.c (layout_decl): Don't set DECL_USER_ALIGN.
        (finalize_record_size): Don't set TYPE_USER_ALIGN.

2001-08-16  Matt Kraai  <kraai@alumni.carnegiemellon.edu>

        * config/i386/i386.c (ix86_init_mmx_sse_builtins): Remove unused
        variables.

2001-08-16  Andreas Jaeger  <aj@suse.de>

        * config/s390/s390.c: Include "debug.h" for dwarf2out_do_frame
        prototype.

Wed Aug 15 15:22:52 EDT 2001  John Wehle  (john@feith.com)

        * rtl.h (only_sets_cc0_p): New prototype.
        * jump.c (sets_cc0_p): Handle INSN.
        (only_sets_cc0_p): New function.
        * flow.c (merge_blocks_nomove): Use only_sets_cc0_p.
        (tidy_fallthru_edge): Likewise.
        * integrate.c (copy_insn_list): Likewise.
        * unroll.c (unroll_loop): Likewise.
        (copy_loop_body): Likewise.

2001-08-15  Jason Eckhardt  <jle@redhat.com>

        * config/i960/i960.md (trap): Change "faulteq.t" to "faulte.t".

Wed Aug 15 14:24:22 CEST 2001  Jan Hubicka  <jh@suse.cz>

        * predict.c (struct block_info_def): Remove nvisited.
        (propagate_freq): Use EDGE_DFS_BACK to detect irreducible regions.
        (estimate_bb_frequencies): Call mark_dfs_back_edges.

        * i386.c (ix86_agi_depdendant): Lea causes AGI only on the Pentium
        (ix86_adjust_cost): Teach scheduler that latency to load operand can
        be masked.

Wed Aug 15 12:41:32 CEST 2001  Jan Hubicka  <jh@suse.cz>

        * predict.def: Update hitrates.

2001-08-15  Richard Henderson  <rth@redhat.com>

        * except.c (TYPE_HASH): Cast to size_t, not HOST_WIDE_INT.

Tue Aug 14 17:30:59 2001  Jeffrey A Law  (law@cygnus.com)

        * flow.c (commit_one_edge_insertion): Don't separate a LOOP_BEG
        note from its associated jump.

2001-08-14  Ulrich Weigand  <uweigand@de.ibm.com>

        * config/s390/linux64.h (CPP_PREDEFINES): Define __s390__
        also on 64-bit s390x targets.

2001-08-14  Nick Clifton  <nickc@cambridge.redhat.com>

        * config/arm/arm.c (arm_compute_initial_elimination_offset): New
        function.
        (arm_expand_prologue): Handled nested functions which take a
        variable argument list.
        * config/arm/arm.h (ARM_INITIAL_ELIMINATION_OFFSET): Replace
        macro with an invocation of
        arm_compute_initial_elimination_offset.
        * config/arm/arm-protos.h: Prototype
        arm_compute_initial_elimination_offset.

2001-08-14  Gerald Pfeifer  <pfeifer@dbai.tuwien.ac.at>

        * doc/install.texi (Specific, avr): Fix markup.
        (Specific, c4x): Ditto.

2001-08-14  Matt Kraai  <kraai@alumni.carnegiemellon.edu>

        * predict.c (dump_prediction): Change `bool' parameter to `int'.

2001-08-14  Gabriel Dos Reis  <gdr@codesourcery.com>

        * Makefile.in (OBJS): Add rtl-error.o
        (rtl-error.o): New rule.
        (diagnostic.o): Adjust dependency.
        diagnostic.c (file_and_line_for_asm, diagnostic_for_asm,
        error_for_asm, _fatal_insn, _fatal_insn_not_found,
        warning_for_asm): Move to...
        rtl-error.c: ...here.  New file.

2001-08-14  Richard Henderson  <rth@redhat.com>

        * dwarf2out.c (dwarf2out_frame_finish): Never emit .eh_frame
        if USING_SJLJ_EXCEPTIONS.

2001-08-14  Steve Ellcey <sje@cup.hp.com>

        * tlink.c (scan_linker_output): Check string for unsatisfied in
        addition to undefined and unresolved.

2001-08-14  Graham Stott  <grahams@redhat.com>

        * libgcc2.c (*): Replace EH_FRAME_SECTION with
        EH_FRAME_SECTION_NAME.

Tue Aug 14 14:57:07 CEST 2001  Jan Hubicka  <jh@suse.cz>

        * genattrtab.c (simplify_test_exp_in_temp): New function.
        (simplify_test_exp): Avoid explicit use of temporary obstack.
        (simplify_cond, insert_right_side, evaluate_eq_attr,
        simplify_and_tree, simplify_or_tree, eliminate_known_true):
        Use simplify_test_exp_in_temp.
        (optimize_attrs): Iterate until expression stabilizes.

2001-08-13  Ulrich Weigand  <uweigand@de.ibm.com>:

        * glimits.h: Remove the __LONG_MAX__ special case for s390x.
        * config/s390/linux64.h: Define __LONG_MAX__ in CPP_PREDEFINES.

2001-08-13  Richard Henderson  <rth@redhat.com>

        * config/arm/unknown-elf.h (CTOR_LIST_BEGIN, CTOR_LIST_END): Remove.
        (DTOR_LIST_BEGIN, DTOR_LIST_END): Remove.
        * config/arm/conix-elf.h: Likewise.

2001-08-13  Geoffrey Keating  <geoffk@redhat.com>

        * config/svr4.h (LINK_SPEC): Don't do -Wl, here, it is done
        in gcc.c.
        * config/rs6000/sysv4.h (LINK_SPEC): Likewise.

        * gcse.c (hash_scan_set): Expressions that are set as part of
        jump instructions are not available.

2001-08-13  Ulrich Weigand  <uweigand@de.ibm.com>

        * config/s390/s390.c (print_operand, s390_function_prologue,
        s390_va_start): Fixed HOST_WIDE_INT type mismatch.

2001-08-13  Richard Henderson  <rth@redhat.com>

        * config/rs6000/xcoff.h (EH_FRAME_IN_DATA_SECTION): New.
        * defaults.h (EH_FRAME_SECTION_NAME): Respect it.
        * doc/tm.texi (Exception Region Output): Document it.

2001-08-13  Geoffrey Keating  <geoffk@redhat.com>

        * config/rs6000/sysv4.h (PREFERRED_DEBUGGING_TYPE): Use
        DWARF2 instead of stabs by default.

2001-08-13  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/rs6000.c: Include optabs.h.

2001-08-13  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/eabi.asm: Define 64-bit versions of FPR
        save/restore routines.
        * ginclude/ppc-asm.h: Define 64-bit FUNC_* macros.

2001-08-13  Andreas Jaeger  <aj@suse.de>

        * gcc.c (init_spec): Revert last patch by Theodore Papadopoulo,
        the english is correct.

2001-08-13  Zack Weinberg  <zackw@panix.com>

        * expr.h: Split out optab- and libfunc-related code to...
        * optabs.h, libfuncs.h: ... these new headers.

        * Makefile.in (CONFIG_H, EXPR_H): Take out insn-codes.h.
        (OPTABS_H): New.
        (various .o rules): Add $(OPTABS_H) and/or libfuncs.h to
        dependencies.
        * mkconfig.sh: Don't include insn-codes.h from config.h.

        * reload.h: Use #ifdef GCC_INSN_CODES_H to decide whether
        enum insn_code is available.  Move reload_in_optab and
        reload_out_optab array declarations to optabs.h.
        * regmove.c (gen_add3_insn): Move to optabs.c, export from
        there, prototype in expr.h.
        * gencodes.c: Cleanup: zap global variables, don't use
        printf where puts will do, don't bother defining MAX_INSN_CODE
        which nothing uses, let CODE_FOR_nothing get its value implicitly.

        * genemit.c, genopinit.c: Include optabs.h in generated file.
        * genoutput.c: Include insn-codes.h in generated file.
        * builtins.c, caller-save.c, combine.c, doloop.c, explow.c,
        expmed.c, expr.c, function.c, ifcvt.c, loop.c, optabs.c, profile.c,
        reload1.c, simplify-rtx.c, stmt.c, unroll.c, config/alpha/alpha.c,
        config/arm/arm.c, config/c4x/c4x.c, config/clipper/clipper.c,
        config/i386/i386.c, config/ia64/ia64.c, config/mn10300/mn10300.c,
        config/pj/pj.c, config/sh/sh.c, config/sparc/sparc.c:
        Include optabs.h.
        * builtins.c, calls.c, dwarf2out.c, except.c, expr.c, function.c,
        optabs.c, stmt.c, config/c4x/c4x.c, config/clipper/clipper.c,
        config/m88k/m88k.c, config/sparc/sparc.c:
        Include libfuncs.h.
        * reload.c: Include expr.h and optabs.h before reload.h.
        * config/alpha/alpha.c: Include tree.h before reload.h.
        * config/pa/pa.c: Include expr.h, optabs.h, libfuncs.h,
        and reload.h in that order.
        * config/sparc/sparc.c: Include debug.h.
        * recog.c: Include insn-codes.h.

2001-08-13  Andreas Jaeger  <aj@suse.de>

        * config.gcc: Use t-slibgcc-elf to build shared libgcc_s on
        s390*linux.

2000-08-13 Theodore Papadopoulo <Theodore.Papadopoulo@sophia.inria.fr>

        * dwarf2out.c (output_cfa_loc): Fix typo in comment.
        * gcc.c (init_spec): Fix typo in comment.
        * varasm.c (data_section): Fix typo in comment.

Mon Aug 13 02:27:39 CEST 2001  Jan Hubicka  <jh@suse.cz>

        * predict.c (dump_prediction): New argument "USED".
        (combine_predictions_for_insn): Determine the used heuristics,
        output the case no heuristic applied.
        * predict.def (PRED_DS_THEORY, PRED_NO_HEURISTIC): New.

2001-08-13  Andreas Jaeger  <aj@suse.de>

        * config/i386/unix.h (ASM_OUTPUT_MI_THUNK): Don't capitalize
        register %rip.

2001-08-13  Kazu Hirata  <kazu@hxi.com>

        * jump.c: Fix formatting.

2001-08-13  Kazu Hirata  <kazu@hxi.com>

        * config/h8300/h8300.md (zero_extendqihi2): Correct the insn
        length.

2001-08-12  Geoffrey Keating  <geoffk@redhat.com>

        * loop.c (check_dbra_loop): Use condjump_label to compute
        jump_label.

        * rtl.h: Move prototypes of rtx_alloc and rtvec_alloc around
        to better document the files they're in.

2001-08-12  Zack Weinberg  <zackw@panix.com>

        * recog.h (struct insn_operand_data): Shrink 'mode' field
        to 16 bits.

2001-08-12  Kazu Hirata  <kazu@hxi.com>

        * gcc.c: Fix comment formatting.
        * gccspec.c: Likewise.
        * gcov.c: Likewise.
        * gcse.c: Likewise.
        * genemit.c: Likewise.
        * gengenrtl.c: Likewise.
        * genrecog.c: Likewise.
        * gensupport.c: Likewise.
        * ggc-page.c: Likewise.
        * global.c: Likewise.
        * graph.c: Likewise.
        * ifcvt.c: Likewise.
        * integrate.c: Likewise.
        * lcm.c: Likewise.
        * libgcc2.c: Likewise.
        * loop.c: Likewise.
        * mbchar.c: Likewise.
        * optabs.c: Likewise.
        * predict.c: Likewise.
        * prefix.c: Likewise.
        * profile.c: Likewise.
        * protoize.c: Likewise.
        * real.c: Likewise.
        * recog.c: Likewise.
        * regclass.c: Likewise.
        * regmove.c: Likewise.
        * reg-stack.c: Likewise.
        * reload1.c: Likewise.
        * resource.c: Likewise.
        * rtlanal.c: Likewise.
        * rtl.c: Likewise.

2001-08-12  Kazu Hirata  <kazu@hxi.com>

        * doc/tm.texi (ENCODE_SECTION_INFO): Add documentation on how
        a tree representing a constant is passed to the macro.

2001-08-12  Richard Henderson  <rth@redhat.com>

        * config/rs6000/rs6000.c (rs6000_elf_asm_out_constructor): New.
        (rs6000_elf_asm_out_destructor): New.
        * config/rs6000/sysv4.h (CTORS_SECTION_ASM_OP): Remove.
        (DTORS_SECTION_ASM_OP): Remove.
        (TARGET_ASM_CONSTRUCTOR, TARGET_ASM_DESTRUCTOR): New.
        (ASM_OUTPUT_INT): Don't hack TARGET_RELOCATABLE for constructors.

2001-08-12  David Edelsohn  <edelsohn@gnu.org>

        Revert:
        2001-08-02  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
        * gcc.c (set_collect_gcc_options): New function, split out from
        main.
        Ignore elided switches.
        (do_spec_1): Invoke before executing command.
        (set_input): Export.
        Move declaration ...
        * gcc.h (set_input): ... here.
        * config/alpha/osf.h (ASM_FINAL_SPEC): Use %U.s to refer to input
        file.

2001-08-12  Richard Henderson  <rth@redhat.com>

        * config/rs6000/rs6000.c (rs6000_elf_section_type_flags): Fix
        thinko wrt TARGET_RELOCATABLE.

2001-08-12  Neil Booth  <neil@daikokuya.demon.co.uk>

        * fix-header.c (cb_file_change): Update prototype.

2001-08-11  Zack Weinberg  <zackw@panix.com>

        * toplev.c (set_float_handler): Make static.
        * toplev.h: Don't prototype set_float_handler.

        * simplify-rtx.c: Don't include setjmp.h.
        (simplify_unary_real, simplify_binary_real, simplify_binary_is2orm1):
        New functions.
        (simplify_unary_operation, simplify_binary_operation): Use them,
        via do_float_handler.

        * fold-const.c: Don't include setjmp.h.
        (exact_real_inverse_1): New function.
        (exact_real_inverse): Use it, via do_float_handler.

        * varasm.c: Don't include setjmp.h.
        (assemble_real_1): New function.
        (assemble_real): Use it, via do_float_handler.
        Call internal_error if we get a trap here.

        * c-parse.in, cse.c, cselib.c, config/i386/i386.c,
        config/pj/pj.c, config/s390/s390.c: Don't include setjmp.h.

2001-08-11  Zack Weinberg  <zackw@panix.com>

        * defaults.h: Define PREFERRED_STACK_BOUNDARY to
        STACK_BOUNDARY if not already defined.

        * calls.c, function.c, reload1.c, explow.c: Don't default
        PREFERRED_STACK_BOUNDARY.  Remove all #if/#ifdef on
        PREFERRRED_STACK_BOUNDARY and/or STACK_BOUNDARY.

        * explow.c (allocate_dynamic_stack_space): Change unsafe #if
        to run-time test.

        * doc/tm.texi: Document that STACK_BOUNDARY is required;
        clarify difference between it and PREFERRED_STACK_BOUNDARY.

2001-08-11  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cppmacro.c (enter_macro_context): Push macro expansions even
        if empty.

2001-08-11  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

        * config/rs6000/rs6000.c: Include integrate.h to silence warning.
        (rs6000_elf_section_type_flags): Actually return a value.

2001-08-11  Ulrich Weigand  <uweigand@de.ibm.com>

        * s390.c, s390.h, s390.md, s390-protos.h, linux.h, t-linux:
        Clean up code: add missing comments and prototypes, fix warnings,
        remove obsolete code, fix spacing to conform to coding style.

2001-08-11  Ulrich Weigand  <uweigand@de.ibm.com>

        * config/s390/s390.c (targetm): Define TARGET_ASM_OPEN_PAREN
        and TARGET_ASM_CLOSE_PAREN.
        (regclass_map): CC register belongs to class NO_REGS.
        (legitimize_pic_address): Don't generate unnecessary moves
        (to avoid confusing loop optimization).
        (check_and_change_labels): Replace jump_long by indirect_jump.
        (s390_final_chunkify): Don't start a new literal pool on section
        switch in 64-bit code.
        (s390_va_start, s390_va_arg): Fixed incorrect sizes for 64-bit.

        * config/s390/s390.h (TARGET_SWITCHES): Renamed debug_arg to debug.
        (MAX_BITS_PER_WORD, MAX_LONG_TYPE_SIZE): Set to 64 (for 64-bit).
        (HARD_REGNO_MODE_OK, RETURN_IN_MEMORY): Support complex integer
        modes correctly.
        (reg_class, REG_CLASS_NAMES, REG_CLASS_CONTENTS): Remove CC_REGS.
        (EH_RETURN_HANDLER_RTX): Fixed incorrect offset for 64-bit.
        (CONST_COSTS): Fixed incorrect costs.

        * config/s390/s390.md (fixuns_trunc[sd]f[sd]i2, udivsi3, umodsi3):
        Use emit_jump instead of emit_jump_insn (gen_jump).
        (divsi3, modsi3): Clobber low word of divmoddisi3 before shifting
        (to avoid confusing flow analysis).
        (tablejump, tablejump1, tablejump2): Removed.  Replaced by casesi.
        (casesi, casesi_jump): New.
        (jump_long): Removed.  Functionality merged into indirect_jump.
        (indirect_jump): Accept address_operand, not just register_operand.
        (cjump_long, icjump_long): Use same logic as indirect_jump.
        (builtin_setjmp_setup, builtin_setjmp_receiver, builtin_longjmp):
        Fixed broken setjmp/longjmp handling.
        (do_builtin_setjmp_setup): Removed.

      &