* cp-tree.h (cp_tree_index): Add CPTI_BASE_CTOR_IDENTIFIER,
	CPTI_BASE_DTOR_IDENTIFIER, and CPTI_DELETING_DTOR_IDENTIFIER.
	(base_ctor_identifier): New macro.
	(base_dtor_identifier): Likewise.
	(deleting_dtor_identifier): Likewise.
	* decl.c: Don't include obstack.h.
	(obstack_chunk_alloc): Don't define.
	(obstack_chunk_free): Likewise.
	(struct predefined_identifier): New type.
	(initialize_predefined_identifiers): New function.
	(init_decl_processing): Use it.
	(debug_temp_inits): Remove.
	(start_method): Don't call preserve_data.
	(hack_incomplete_structures): Update comment.
	* init.c (init_init_processing): Don't initialize
	nelts_identifier.
	(build_offset_rf): Remove dead code.
	(build_delete): Use CLASSTYPE_N_BASECLASSES.
	* search.c (init_search_processing): Don't initialize
	vptr_identifier.

From-SVN: r33031

        * flow.c (mark_used_reg): Use reg_set_p to determine if a register
        was modified in the current insn.

From-SVN: r33030

* arm/thumb.md: Delete.
* arm/thumb-protos.h: Delete.

From-SVN: r33029

From-SVN: r33028

From-SVN: r33023

	* cpp-nullchar.c:  Remove test as embedded nulls
	cause problems.

From-SVN: r33022

From-SVN: r33021

From-SVN: r33020

        * tree.c (tree_expr_nonnegative_p): New function.

        * tree.h (tree_expr_nonnegative_p): Declare.

        * c-typeck.c (build_binary_op): Call `tree_expr_nonnegative_p' to
        elide some sign_compare warnings.
        (build_conditional_expr): Likewise.

cp:
        * typeck.c (build_binary_op): Call `tree_expr_nonnegative_p' to elide
        some sign_compare warnings.

From-SVN: r33019

	* i386.md (ashrsi3, ashrhi3, ashrqi3): Fix typo.

	* i386.md (floathisf2, floathidf2, floathixf2): New patterns.
	* i386.c (print_operand): Use the proper suffix for a 387 HImode
	operand.  Abort if a 387 operand has an unsupported size.

From-SVN: r33018

From-SVN: r33016

From-SVN: r33015

From-SVN: r33014

	* cppexp.c (parse_charconst): Null does not end character
	constants.
	* cppinit.c (ISTABLE): Null character handled as whitespace.
	* cpplex.c (null_warning):  new function.
	(skip_string): Emit warning if nulls encountered.
	(_cpp_skip_hspace): Emit warning if nulls encountered.
	(_cpp_lex_token): Emit warning if nulls encountered.  Drop
	them.
	* cpp.texi: Update.

From-SVN: r33013

	* flow.c (loop_depth): Remove.
	(reg_next_use, cc0_live, mem_set_list): Replace with ...
	(struct propagate_block_info): New.
	(life_analysis): Don't allocate reg_next_use.
	(propagate_block_delete_insn): Break out of propagate_block.
	Use flow_delete_insn to unlink rather than use NOTE_INSN_DELETED.
	(propagate_block_delete_libcall): Likewise.
	(propagate_block): Create a propagate_block_info struct to pass
	to subroutines.  Allocate one not two temporary regsets.  Don't
	clobber memory for const calls.  Look for clobbers in
	CALL_INSN_FUNCTION_USAGE.
	(mark_set_regs): Recognize COND_EXEC.
	(mark_set_reg): Break out of mark_set_1.
	(mark_used_reg): Break out of mark_used_regs.
	(mark_used_regs): Recognize COND_EXEC.
	(insn_dead_p): Use propagate_block_info struct.
	(libcall_dead_p, invalidate_mems_from_autoinc): Likewise.
	(find_auto_inc, try_pre_increment_1): Likewise.
	(print_rtl_with_bb): Dump regs live at end too.
	(count_reg_sets_1): Pass in loop_depth.
	(count_reg_sets, count_reg_references): Likewise.
	(recompute_reg_usage): Provide it.

From-SVN: r33012

From-SVN: r33011

From-SVN: r33010

        * Makefile.in (conflict.o): Depend on $(RTL_H) and $(BASIC_BLOCK_H)
        not the raw files.

From-SVN: r33009

	* cpplib.c (do_elif): Skip the rest of the line if we're
	not going to bother evaluating it.
	(skip_if_group): Clear pfile->only_seen_white.  Reorder loop
	to avoid pointless calls to the lexer.

	* gcc.dg/cpp-mi2.c: New test.
	* gcc.dg/cpp-mi2[abc].h: New files.

From-SVN: r33008

	* config/ia64/ia64.c: Delete stdio.h and ctype.h includes.

From-SVN: r33007

From-SVN: r33006

	* g++.old-deja/g++.abi/vmihint.C: Adjust __vmi_class_type_info
	member name.

From-SVN: r33005

	* inc/cxxabi.h (__vmi_class_type_info): Rename details, n_bases,
	base_list, detail_masks members to vmi_flags, vmi_base_count,
	vmi_bases and vmi_flags_masks respectively.
	(__vmi_class_type_info::vmi_flags_masks): Rename
	details_unknown_mask to flags_unknown_mask.
	* tinfo.cc (__class_type_info::do_upcast): Adjust.
	(__vmi_class_type_info::do_find_public_src): Adjust.
	(__vmi_class_type_info::do_dyncast): Adjust.
	(__vmi_class_type_info::do_upcast): Adjust.

From-SVN: r33004

	* config/sparc/t-linux64 (tcrtbeginS.o, tcrtendS.o): Remove.
	* Makefile.in: Build crtbeginS and crtendS like crtbegin and
	crtend so they can be multilibbed.
	(STAGESTUFF): Remove s-crt and s-crtS.

From-SVN: r33003

alpha.c (alpha_emit_conditional_move): Fail if we discover we need a pseudo and no_new_pseudos is true.

        * config/alpha/alpha.c (alpha_emit_conditional_move): Fail
        if we discover we need a pseudo and no_new_pseudos is true.
        * config/alpha/alpha.md (ne:DI insn): New.
        (trunctfsf2, sne): Emit NE instead of non-canonical LTU.

From-SVN: r32998

        * rtl.def (COND_EXEC): New.
        * rtl.h (COND_EXEC_TEST, COND_EXEC_CODE): New.
        * tm.texi (MAX_CONDITIONAL_EXECUTE): Document.

        * genconfig.c (have_cond_arith_flag): Remove.
        (have_cond_exec_flag): New.
        (walk_insn_part): Detect COND_EXEC, not arithmetic in IF_THEN_ELSE.
        (main): Print HAVE_conditional_execution.

        * haifa-sched.c (haifa_classify_insn): Recognize COND_EXEC.
        (sched_analyze_insn, print_pattern): Likewise.
        * reload.c (find_equiv_reg): Likewise.
        * rtlanal.c (reg_referenced_p): Likewise.
        (note_stores, dead_or_set_regno_p): Likewise.
        (reg_overlap_mentioned_p): Rewrite to use a switch.

From-SVN: r32997

        * ggc.h (struct rtx_def): Forward declare.

        * print-rtl.c (debug_rtx_range): New.
        * rtl.h (debug_rtx_range): Declare.

        * varray.h (VARRAY_ACTIVE_SIZE, VARRAY_POP_ALL): New.

From-SVN: r32996

        * gcse.c (gcse_main): Don't rebuild the CFG here.
        (delete_null_pointer_checks): Likewise.
        * ssa.c (convert_to_ssa): Likewise.
        * toplev.c (rest_of_compilation): Do it here instead.  Combine
        sequential calls to TIMEVAR.  Consistently use `insns' instead of
        `get_insns()'.  Always split insns after reload when optimizing.

From-SVN: r32995

        * basic-block.h (merge_blocks_nomove): Declare.
        (tidy_fallthru_edge): Declare.
        * flow.c (merge_blocks_nomove): Document as merging into previous
        blocks.  Remove cruft from between blocks; remove all edges out of A.
        (tidy_fallthru_edge): Export.

From-SVN: r32994

	* tinfo.cc (convert_to_base): New function.
	(get_vbase_offset): Remove. Move into convert_to_base.
	(__vmi_class_type_info::do_find_public_src): Adjust.
	(__vmi_class_type_info::do_dyncast): Adjust.
	(__vmi_class_type_info::do_upcast): Adjust.
plus commit changelog entry 2000-04-06  Nathan Sidwell  <nathan@codesourcery.com>

From-SVN: r32993

	* ssa.c (compute_conservative_reg_partition): Declare with
	void arguments.
	* toplev.c (clean_dump_file): Remove previously-deleted function
	inadvertantly merged back in.
	* conflict.c (conflict_graph_add): Use a single call to
	htab_find_slot to look up and insert.

From-SVN: r32992

From-SVN: r32991

        * genrecog.c (*): Rename _last_insn to last_insn.
        (make_insn_sequence): Set the position of the peephole2 C test
        to be at the last insn.

From-SVN: r32990

From-SVN: r32983

	Michael Matz  <matzmich@cs.tu-berlin.de>
        * flow.c (compute_flow_dominators): Process blocks FIFO not LIFO.

From-SVN: r32982

	* rtl.h (INSN_P): New macro.
	(successor_phi_fn): New typedef.
	(for_each_successor_phi): New prototype.
	(in_ssa_form): New variable.
	(PHI_NODE_P): Likewise.
	* flow.c (calculate_global_regs_live): Add to new_live_at_end from
	phi nodes in successors.
	(mark_used_regs): Add PHI case.
	(set_phi_alternative_reg): New function.
	(life_analysis): Assert that dead code elimination is not selected
	when in SSA form.
	* toplev.c (to_ssa_time): New variable.
	(from_ssa_time): Likewise.
	(compile_file): Zero to_ssa_time and from_ssa_time.
	Print time to convert to and from SSA.
	(rest_of_compilation): Time convert_to_ssa and convert_from_ssa.
	(print_time): Compute percent fraction as integer.
	* ssa.c (PHI_NODE_P): Moved to rtl.h.
	(convert_to_ssa): Check if we're already in SSA.
	Don't eliminate dead code in life_analysis.
	Rerun flow and life analysis at bottom.
	(eliminate_phi): Use canonical regnos when adding nodes.
	(mark_reg_in_phi): New function.
	(mark_phi_and_copy_regs): Likewise.
	(convert_from_ssa): Rerun life analysis at top.
	Use coalesced partition.
	Check for removing a phi node at the end of the block.
	(compute_coalesced_reg_partition): New function.
	(coalesce_regs_in_copies): Likewise.
	(coalesce_reg_in_phi): Likewise.
	(coalesce_regs_in_sucessor_phi_nodes): Likewise.
	(for_each_successor_phi): Likewise.
	(rename_context): New struct.
	(rename_block): Use a rename_context with rename_insn_1.  When
	renaming sets of a subreg, emit a copy of the entire reg first.
	(rename_insn_1): Treat data as a rename_context *.  Save current
	insn in set_data.
	(rename_set_data): Add field set_insn.
	* Makefile.in (HASHTAB_H): Move up in file.
	(OBSTACK_H): New macro.
	(collect2.o): Use OBSTACK_H in dependencies.
	(sdbout.o): Likewise.
	(emit-rtl.o): Likewise.
	(simplify-rtx.o): Likewise.
	(fix-header.o): Likewise.
	(OBJS):	Add conflict.o.
	(conflict.o): New rule.
	* basic-block.h: Include partition.h.
	(conflict_graph): New typedef.
	(conflict_graph_enum_fn): Likewise.
	(conflict_graph_new): New prototype.
	(conflict_graph_delete): Likewise.
	(conflict_graph_add): Likewise.
	(conflict_graph_conflict_p): Likewise.
	(conflict_graph_enum): Likewise.
	(conflict_graph_merge_regs): Likewise.
	(conflict_graph_print): Likewise.
	(conflict_graph_compute): Likewise.
	* conflict.c: New file.

From-SVN: r32981

	* tinfo.cc (operator=): Use __builtin_strcmp.
	* tinfo2.cc (before): Likewise.

From-SVN: r32980

	* rtl.h (INSN_P): New macro.
	(successor_phi_fn): New typedef.
	(for_each_successor_phi): New prototype.
	(in_ssa_form): New variable.
	(PHI_NODE_P): Likewise.
	* flow.c (calculate_global_regs_live): Add to new_live_at_end from
	phi nodes in successors.
	(mark_used_regs): Add PHI case.
	(set_phi_alternative_reg): New function.
	(life_analysis): Assert that dead code elimination is not selected
	when in SSA form.
	* toplev.c (to_ssa_time): New variable.
	(from_ssa_time): Likewise.
	(compile_file): Zero to_ssa_time and from_ssa_time.
	Print time to convert to and from SSA.
	(rest_of_compilation): Time convert_to_ssa and convert_from_ssa.
	(print_time): Compute percent fraction as integer.
	* ssa.c (PHI_NODE_P): Moved to rtl.h.
	(convert_to_ssa): Check if we're already in SSA.
	Don't eliminate dead code in life_analysis.
	Rerun flow and life analysis at bottom.
	(eliminate_phi): Use canonical regnos when adding nodes.
	(mark_reg_in_phi): New function.
	(mark_phi_and_copy_regs): Likewise.
	(convert_from_ssa): Rerun life analysis at top.
	Use coalesced partition.
	Check for removing a phi node at the end of the block.
	(compute_coalesced_reg_partition): New function.
	(coalesce_regs_in_copies): Likewise.
	(coalesce_reg_in_phi): Likewise.
	(coalesce_regs_in_sucessor_phi_nodes): Likewise.
	(for_each_successor_phi): Likewise.
	(rename_context): New struct.
	(rename_block): Use a rename_context with rename_insn_1.  When
	renaming sets of a subreg, emit a copy of the entire reg first.
	(rename_insn_1): Treat data as a rename_context *.  Save current
	insn in set_data.
	(rename_set_data): Add field set_insn.
	* Makefile.in (HASHTAB_H): Move up in file.
	(OBSTACK_H): New macro.
	(collect2.o): Use OBSTACK_H in dependencies.
	(sdbout.o): Likewise.
	(emit-rtl.o): Likewise.
	(simplify-rtx.o): Likewise.
	(fix-header.o): Likewise.
	(OBJS):	Add conflict.o.
	(conflict.o): New rule.
	* basic-block.h: Include partition.h.
	(conflict_graph): New typedef.
	(conflict_graph_enum_fn): Likewise.
	(conflict_graph_new): New prototype.
	(conflict_graph_delete): Likewise.
	(conflict_graph_add): Likewise.
	(conflict_graph_conflict_p): Likewise.
	(conflict_graph_enum): Likewise.
	(conflict_graph_merge_regs): Likewise.
	(conflict_graph_print): Likewise.
	(conflict_graph_compute): Likewise.
	* conflict.c: New file.

From-SVN: r32979

	* tlink.c (read_repo_files): Don't look for .rpo info for
	linker flags.

From-SVN: r32978

From-SVN: r32977