* doc/tree-ssa.texi: Remove references to VDEF and add descriptions
	of V_MAY_DEF and V_MUST_DEF.
	* tree-dfa.c (dfa_stats_d): Add num_v_must_defs and rename
	num_vdefs to num_v_may_defs.
	(compute_immediate_uses_for_stmt): Rename occurences of vdef
	to v_may_def.
	(redirect_immediate_uses): Ditto.
	(dump_dfa_stats): Ditto. Also added code to dump num_v_must_defs.
	(collect_dfa_stats_r): Rename occurences of vdef to v_may_def.
	Also add code to sum up the number of v_must_defs.
	(vdefs_disappeared_p): Replace with...
	(v_may_defs_disappeared_p): This.
	(v_must_defs_disappeared_p): New function.
	(mark_new_vars_to_rename): Rename occurences of vdef to v_may_def.
	Also add code to mark new variables found in V_MUST_DEFs for
	renameing.
	* tree-flow.h (stmt_ann_d): Add v_must_def_ops and replace
	vdef_ops to v_may_def_ops.
	(get_vdef_ops): Replace with...
	(get_v_may_def_ops): This.
	* tree-flow-inline.h (get_vdef_ops): Replace with...
	(get_v_may_def_ops): This.
	(get_v_must_def_ops): New function.
	(get_vdef_result_ptr): Replace with...
	(get_v_may_def_result_ptr): This.
	(get_vdef_op_ptr): Ditto with...
	(get_v_may_def_op_ptr); This.
	(get_v_must_def_op_ptr): New function.
	* tree-into-ssa.c (mark_def_sites): Rename occurences of vdef
	to v_may_def. Also add code to mark statements with
	V_MUST_DEFs as definition sites.
	(rewrite_stmt): Rename occurences of vdef to v_may_def. Also
	add code to register new V_MUST_DEFs made by the statement.
	* tree-outof-ssa.c (VIRTUAL_PARTITION): Update comments.
	(check_replaceable): Rename occurences of vdef to v_may_def. Also
	add check for V_MUST_DEFs.
	(find_replaceable_in_bb): Ditto.
	* tree-pretty-print.c (dump_vops): Rename occurences of vdef
	to v_may_def. Also add code to dump V_MUST_DEFs.
	* tree-sra.c (mark_all_vdefs): Replace with...
	(mark_all_v_may_defs): This.
	(mark_all_v_must_defs): New function.
	(create_scalar_copies): Replace call to mark_all_vdefs with
	calls to mark_all_v_may_defs and mark_all_v_must_defs.
	(scalarize_structures): Rename occurences of vdef to v_may_def.
	Also add a check for V_MUST_DEFs.
	(scalarize_modify_expr): Rename occurences of vdef to v_may_def.
	* tree-ssa-alias.c (global_var): Update comment.
	(compute_may_aliases): Ditto.
	(compute_points_to_and_addr_escape): Rename occurences of vdef
	to v_may_def. Also add code to mark variables in V_MUST_DEF
	operands as being written to.
	(group_aliases): Update comment.
	(maybe_create_global_var): Ditto.
	* tree-ssa.c (verify_ssa): Rename occurences of vdef to v_may_def.
	Also add a check for V_MUST_DEFs on GIMPLE registers.
	(replace_immediate_uses): Rename occurences of vdef to v_may_def.
	* tree-ssa-ccp.c (visit_stmt): Rename occurences of vdef
	to v_may_def. Also add code to mark all V_MUST_DEF operands
	VARYING.
	(initialize): Ditto.
	(set_rhs): Rename occurences of vdef to v_may_def. Also add
	code to update SSA_NAMEs in V_MUST_DEFs.
	* tree-ssa-copy.c (cprop_into_stmt): Rename occurences of vdef
	to v_may_def.
	* tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Rename
	occurences of vdef to v_may_def. Also add code to mark statements
	with V_MUST_DEFs as necessary.
	(propagate_necessity): Rename occurences of vdef to v_may_def.
	* tree-ssa-dom.c (redirect_edges_and_update_ssa_graph): Rename
	occurences of vdef to v_may_def. Also add code to mark operands
	in V_MUST_DEFs for renaming.
	(eliminate_redundant_computations): Rename occurences of vdef
	to v_may_def.
	(record_equivalences_from_stmt): Rename occurences of vdef
	to v_may_def. Also add code to record VUSEs for V_MUST_DEFs.
	(optimize_stmt): Remove unnesessary variable vdefs. Update
	comment.
	(register_definitions_for_stmt): Rename occurences of vdef
	to v_may_def. Also add code to register definitions made with
	V_MUST_DEFs.
	* tree-ssa-dse.c (fix_stmt_vdefs): Replace with...
	(fix_stmt_v_may_defs): This.
	(fix_phi_uses): Rename occurences of vdef to v_may_def.
	(dse_optimize_stmt): Ditto.
	* tree-ssa-live.c (create_ssa_var_map): Rename occurences of vdef
	to v_may_def. Also add code to mark V_MUST_DEF operands as being
	used in virtual operators.
	* tree-ssa-loop.c (mark_defs_for_rewrite): Rename occurences of
	vdef to v_may_def. Also add code to mark V_MUST_DEF operands for
	renaming.
	* tree-ssa-operands.c (opf_kill_def): New flag for killing
	definitions.
	(build_vdefs): Renamed to...
	(build_v_may_defs): This.
	(build_v_must_defs): New variable.
	(voperands_d): Add v_must_def_ops and replace vdef_ops with
	v_may_def_ops.
	(append_vdef): Replace with...
	(append_v_may_def): This.
	(append_v_must_def): New function.
	(NUM_FREE): Increment for V_MUST_DEF
	(optype_freelist): Increment its size for V_MUST_DEF
	(allocate_vdef_optype): Replace with...
	(allocate_v_may_def_optype): This.
	(allocate_v_must_def_optype): New function.
	(free_vdefs): Replace with...
	(free_v_may_defs): This.
	(free_v_must_defs): New function.
	(remove_vdefs): Replace with...
	(remove_v_may_defs): This.
	(remove_v_must_defs): New function.
	(init_ssa_operands): Rename occurences of vdef to v_may_def. Also
	add code to initialize build_v_must_defs.
	(finalize_ssa_vdefs): Replace with...
	(finalize_ssa_v_may_defs): This.
	(finalize_ssa_vuses): Rename occurences of vdef to v_may_def.
	(finalize_ssa_v_must_defs): New function.
	(finalize_ssa_stmt_operands): Replace call to finalize_ssa_vdefs
	with calls to finalize_ssa_v_may_defs and finalize_ssa_v_must_defs.
	(verify_start_operands): Rename occurences of vdef to v_may_def.
	Also add check for build_v_must_defs.
	(get_stmt_operands): Rename occurences of vdef to v_may_def.
	Also add code to handle V_MUST_DEFs and to use opf_kill_def for
	killing definitions.
	(get_expr_operands): Update comment and use opf_kill_def for
	killing definitions.
	(add_stmt_operand): Replace code that appends VDEFs with code
	that appends V_MUST_DEFs when opf_kill_def is set and V_MAY_DEFs
	otherwise.
	(add_call_clobber_ops): Update comments.
	* tree-ssa-operands.h (vdef_optype_d): Replace with...
	(v_may_def_optype_d): This.
	(v_must_def_optype_d): New structure.
	(VDEF_OPS): Replace with...
	(V_MAY_DEF_OPS): This.
	(STMT_VDEF_OPS): Same with...
	(STMT_V_MAY_DEF_OPS): This.
	(NUM_VDEFS): And...
	(NUM_V_MAY_DEFS): This.
	(VDEF_RESULT_PTR): As well as...
	(V_MAY_DEF_RESULT_PTR): This.
	(VDEF_RESULT): Same goes for...
	(V_MAY_DEF_RESULT): This.
	(VDEF_OP_PTR): And...
	(V_MAY_DEF_OP_PTR): This.
	(VDEF_OP): And...
	(V_MAY_DEF_OP): This.
	(V_MUST_DEF_OPS): New macro.
	(STMT_V_MUST_DEF_OPS): Ditto.
	(NUM_V_MUST_DEFS): Ditto.
	(V_MUST_DEF_OP_PTR): Ditto.
	(V_MUST_DEF_OP): Ditto.
	(remove_vdefs): Replace signature with...
	(remove_v_may_defs): This.
	(remove_v_must_defs): New function signature.
	* tree-ssa-pre.c (subst_phis): Replace call to remove_vdefs
	with calls to remove_v_may_defs and remove_v_must_defs.
	(process_left_occs_and_kills): Rename occurences of vdef to v_may_def.
	Also add code that marks left occurences of operands in V_MUST_DEFs.
	* tree-tailcall.c (find_tail_calls): Rename occurences of vdef
	to v_may_def. Also add check for V_MUST_DEFs.
	(eliminate_tail_call):Rename occurences of vdef to v_may_def.

testsuite:

	* gcc.dg/tree-ssa/20031015-1.c: Scan for
	V_MAY_DEF instead of VDEF.
	* gcc.dg/tree-ssa/20040517-1.c: Ditto.

From-SVN: r82947

2004-06-10  Vladimir Makarov  <vmakarov@redhat.com>

	PR target/15653
	* haifa-sched.c (schedule_block): Finish cycle after issuing asm
	insn.

From-SVN: r82942

 	PR web/15263
	* doc/install.texi: Remove superfluous linebreak.

From-SVN: r82940

2004-06-10  Aaron W. LaFramboise  <aaronraolete36@aaronwl.com>

	* include/bits/istream.tcc (istream::ignore): Fix for -Wuninitialized.

From-SVN: r82939

	* builtins.c (expand_builtin): Fall back to library function call for
	conj, conjf, conjl, creal, crealf, creall, cimag, cimagf and cimagl.
	(fold_builtin_1): Lower built-ins BUILT_IN_CONJ{,F,L} to CONJ_EXPR,
	BUILT_IN_CREAL{,F,L} to REALPART_EXPR, and BUILT_IN_CIMAG{,F,L} to
	IMAGPART_EXPR respectively.

From-SVN: r82938

        PR c++/15875
        Revert:
        2004-06-01  Kriang Lerdsuwanakij  <lerdsuwa@users.sourceforge.net>
        * init.c (build_offset_ref): Build SCOPE_REF with non-null
        TREE_TYPE for non-dependent names.
        * pt.c (type_dependent_expression_p): Handle SCOPE_REF with
        unknown_type_node as its TREE_TYPE.
        * cxx-pretty_print.c (pp_cxx_unqualified_id): Handle BASELINK.
        * error.c (dump_decl) <SCOPE_REF case>: Use pp_expression.
        (dump_expr) <SCOPE_REF case>: Likewise.

From-SVN: r82933

	* sh.c (dump_table): New argument start.  Changed caller.
	(fixup_mova): New function.
	(find_barrier): Use it.
	(sh_reorg): Likewise.  Check for CODE_FOR_casesi_worker_2.
	If the label a mova refers to is above the mova itself, change
	the mova into a load.
	* sh.md (*casesi_worker): Rename to:
	(casesi_worker_1).
	(casesi_worker_2): New insn.

From-SVN: r82932

2004-06-10  Jan van Dijk  <jan@etpmod.phys.tue.nl>

	* include/std/std_complex.h (sin(const complex<_Tp>& __z)): Make
	this function return a value.

From-SVN: r82928

From-SVN: r82926

        * target.h (struct gcc_target): Change gimplify_va_arg_expr
        hook signature.
        * tree-gimple.h: Adjust.
        * config/alpha/alpha.c (alpha_gimplify_va_arg): Adjust.
        * config/i386/i386.c (ix86_gimplify_va_arg): Adjust.
        Use fold_convert.
        * config/ia64/ia64.c (ia64_gimplify_va_arg): Adjust.
        * config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Adjust.
        Use COMPLEX_EXPR for complex numbers.  Use fold_convert.
        * builtins.c (std_gimplify_va_arg_expr): Adjust.  Use fold_convert.
        (gimplify_va_arg_expr): Return GS_ERROR in error case.
        Gimplify valist rather than calling stabilize_va_list.

From-SVN: r82925

2004-06-10  Stephen Crowley  <stephen.crowley@sbcglobal.net>

	PR libmudflap/13505
	* mf-hooks2.c (semctl): Add cygwin porting hack.

From-SVN: r82923

	* Makefile.in (df.o): Remove fibheap dependency.
	* df.h: Do not include sbitmap.h.
	(struct ref): New field "data".
	(DF_REF_DATA): New accessor macro.
	(struct df): Field "dom" removed.
	(df_analyze_subcfg): New function.
	(transfer_function_sbitmap, transfer_function_bitmap): Replaced by ...
	(transfer_function): ... new type.
	(iterative_dataflow_sbitmap, iterative_dataflow_bitmap): Replaced by ...
	(iterative_dataflow): ... new function.
	(enum set_representation, struct dataflow): New.
	* df.c: Do not include fibheap.h.

	(df_reg_def_chain_clean, df_reg_use_chain_clean,
	(df_bb_table_realloc, df_analyse_subcfg, free_reg_ref_chain,
	prune_to_subcfg, df_bb_modify): New functions.
	(df_bitmaps_alloc, df_reg_def_chain_create, df_reg_use_chain_create,
	df_refs_update, df_reg_table_realloc, df_ref_create,
	df_bb_reg_def_chain_create, df_bb_reg_use_chain_create,
	df_bb_rd_local_compute, df_bb_ru_local_compute, df_bb_lr_local_compute,
	df_analyse_1, df_insn_modify): Support analysing only a part of the cfg.

	(dataflow_set_a_op_b, dataflow_set_copy): New functions.
	(df_rd_transfer_function, df_ru_transfer_function,
	df_lr_transfer_function): Type of bitmaps changed to void *.
	(hybrid_search_bitmap, hybrid_search_sbitmap): Merge into ...
	(hybrid_search): ... new function.
	(iterative_dataflow_bitmap, iterative_dataflow_sbitmap): Merge into ...
	(iterative_dataflow): ... new function. Avoid use of fibheaps for
	a worklist.  Do not process basic blocks unnecessarily.

From-SVN: r82921

	PR c++/15227
	* parser.c (cp_parser_direct_declarator): Robustify.

	PR c++/15877
	* pt.c (tsubst_copy): Use decl_constant_value on enumeration
	constants in non-dependent contexts.

	PR c++/14211
	PR c++/15076
	* typeck.c (build_static_cast): Wrap casts in NON_LVALUE_EXPR when
	necessary.

	PR c++/14211
	* g++.dg/conversion/const1.C: New test.

	PR c++/15076
	* g++.dg/conversion/reinterpret1.C: New test.

	PR c++/15877
	* g++.dg/template/enum2.C: New test.

	PR c++/15227
	* g++.dg/template/error13.C: New test.

From-SVN: r82917

	* fold-const.c (fold_abs_const): Make extern.
	* tree.h (fold_abs_const): Prototype here.
	* builtins.c (fold_builtin_fabs): New function to transform
	fabs, fabsf and fabsl builtins into ABS_EXPR tree nodes.
	(fold_builtin_abs): New function to transform abs, labs, llabs
	and imaxabs builtins into ABS_EXPR tree nodes.
	(expand_builtin): Fall back to a function call for abs, labs,
	llabs and imaxabs builtins that survive constant folding.
	(fold_builtin_1): Call fold_builtin_fabs for FABS, FABSF and
	FABSL, and fold_builtin_abs for ABS, LABS, LLABS and IMAXABS.

From-SVN: r82916

PR fortran/14957
* gfortran.fortran-torture/execute/intrinsic_scale.f90: Make all
arguments to test_* REAL and of the right size.

From-SVN: r82915

	PR target/15569
	PR rtl-optimization/15681
	* gcc.dg/20040609-1.c: New test.

From-SVN: r82908

	* config/ia64/unwind-ia64.c (uw_frame_state_for): Don't assume a
	leaf function without unwind info at RP 0.

From-SVN: r82906

	* src/ia64/unix.S (ffi_call_unix): Insert group barrier break
	fp_done.
	(ffi_closure_UNIX): Fix f14/f15 adjustment if FLOAT_SZ is ever
	changed from 8.

From-SVN: r82904

From-SVN: r82903

	PR c++/14791
	* tree.h (enum tree_index): Add TI_FILEPTR_TYPE.
	(fileptr_type_node): Define.
	* tree.c (build_common_tree_nodes_2): Initialize
	fileptr_type_node to ptr_type_node.
	* c-common.c (c_common_nodes_and_builtins): For C++, make
	fileptr_type_node a distinct type copy.
	* builtin-types.def (BT_FILEPTR, BT_FN_INT_CONST_STRING_FILEPTR,
	BT_FN_INT_INT_FILEPTR, BT_FN_INT_FILEPTR_CONST_STRING_VALIST_ARG,
	BT_FN_SIZE_CONST_PTR_SIZE_SIZE_FILEPTR,
	BT_FN_INT_FILEPTR_CONST_STRING_VAR): Add.
	(BT_FN_INT_CONST_STRING_PTR, BT_FN_INT_INT_PTR,
	BT_FN_SIZE_CONST_PTR_SIZE_SIZE_PTR, BT_FN_INT_PTR_CONST_STRING_VAR,
	BT_FN_INT_PTR_CONST_STRING_VALIST_ARG): Remove.
	* builtins.def (BUILT_IN_FPRINTF, BUILT_IN_FPRINTF_UNLOCKED,
	BUILT_IN_FPUTC, BUILT_IN_FPUTC_UNLOCKED, BUILT_IN_FPUTS,
	BUILT_IN_FPUTS_UNLOCKED, BUILT_IN_FSCANF, BUILT_IN_FWRITE,
	BUILT_IN_FWRITE_UNLOCKED, BUILT_IN_VFPRINTF, BUILT_IN_VFSCANF): Use
	the above *FILEPTR* types instead of *PTR*.

	* decl.c (duplicate_decls): Handle fileptr_type_node arguments
	specially.

	* g++.dg/opt/builtins1.C: New test.

From-SVN: r82902

From-SVN: r82889

From-SVN: r82887

From-SVN: r82885

From-SVN: r82884

2004-06-09  Daniel Berlin <dberlin@dberlin.org>

	* tree-ssa.c (verify_ssa): Verify that vdefs/makes_aliased_stores
	match.

From-SVN: r82883

        * gcc.dg/i386-bitfield1.c: Add mingw32 and cygwin to targets
        that use default windows32 struct layout.
        * gcc.dg/i386-bitfield2.c: Likewise.

From-SVN: r82878

[[Split portion of a mixed commit.]]

From-SVN: r82874.2

[[Split portion of a mixed commit.]]

From-SVN: r82873.2

	* fold-const.c (fold_not_const): New function.
	(fold) <ABS_EXPR>: Don't bother testing wins.
	(fold) <BIT_NOT_EXPR>: Call fold_not_const.
	(nondestructive_fold_unary_to_constant) <BIT_NOT_EXPR>: Likewise.

From-SVN: r82868

        PR middle-end/15228
        * function.c (assign_parms): Always set_mem_align with the computed
        FUNCTION_ARG_BOUNDARY.  Don't clear stack_parm if !STRICT_ALIGNMENT.

From-SVN: r82867

        PR opt/15108
        * tree-tailcall.c (find_tail_calls): Don't check early for
        tail_recursion failure.

From-SVN: r82866

	* tree-dfa.c (create_ssa_name_ann): Remove.
	* tree-flow-inline.h (ssa_name_ann, get_ssa_name_ann): Remove.
	* tree-flow.h (enum tree_ann_type): Remove SSA_NAME_ANN.
	(struct ssa_name_ann_d): Remove.
	(union tree_ann_d): Update.
	(ssa_name_ann_t): Remove.
	* tree-ssa-alias.c: (get_ptr_info): New local function.
	Replace references to ssa_name_ann_t with struct ptr_info_def.
	* tree-ssa-operands.c (get_expr_operands): Likewise.
	* tree.h (SSA_NAME_PTR_INFO): Define.
	(struct ptr_info_def): Declare.
	(struct tree_ssa_name): Add field 'ptr_info'.

From-SVN: r82864

	* config/i386/winnt.c (i386_pe_output_labelref): Correct
	misplaced ')'.

From-SVN: r82862

	misplaced ')'.

From-SVN: r82860

	* config/i386/k6.md: Rewrite using the DFA model.
	* config/i386/i386.c (ix86_adjust_cost): Don't increase the
	cost of load-operation insns for the K6.
	(ia32_use_dfa_pipeline_interface): Add TARGET_K6.
	(ia32_multipass_dfa_lookahead): Likewise.

From-SVN: r82859

        * config/alpha/alpha.c (alpha_gimplify_va_arg_1,
        alpha_gimplify_va_arg, TARGET_GIMPLIFY_VA_ARG_EXPR): New.

From-SVN: r82858

2004-06-09  Paolo Carlini  <pcarlini@suse.de>

	PR libstdc++/15775
	* include/bits/stl_deque.h: Consistently with stl_set.h, define
	pointer as allocator's pointer, likewise for reference,
	const_pointer, and const_reference.
	* include/bits/stl_list.h: Likewise.
	* include/bits/stl_map.h: Likewise.
	* include/bits/stl_multimap.h: Likewise.
	* include/bits/stl_vector.h: Likewise.

From-SVN: r82857

	* g++.dg/abi/bitfield3.C: Add -mno-align-double compile option
	for mingw32 and cygwin targets.

From-SVN: r82856

From-SVN: r82854

2004-06-09  Geoffrey Keating  <geoffk@apple.com>

	* Makefile.in (CPPLIB_H): Put files in order of inclusion.
	(CPP_ID_DATA_H): New.
	(gtype-desc.o): Update dependencies.
	(GTFILES): Use CPP_ID_DATA_H.

Index: gcc/testsuite/ChangeLog
2004-06-09  Geoffrey Keating  <geoffk@apple.com>

	* gcc.dg/pch/macro-4.c: New.
	* gcc.dg/pch/macro-4.hs: New.

Index: libcpp/ChangeLog
2004-06-09  Geoffrey Keating  <geoffk@apple.com>

	* traditional.c (push_replacement_text): Set macro->traditional.
	(save_replacement_text): Likewise.
	* pch.c (cpp_write_pch_state): Don't write list of defined macros.
	(struct save_macro_item): Delete.
	(struct save_macro_data): Use a character array not the previous
	structured format.
	(save_macros): Save macro as text not as internal structures.
	(cpp_prepare_state): Update for changes to save_macro_data.
	(cpp_read_state): Don't read macros defined in PCH.  Restore
	-D macros as text.
	* macro.c (create_iso_definition): Honour alloc_subobject.
	Clear traditional flag.
	(_cpp_create_definition): Honour alloc_subobject.
	* lex.c (cpp_token_val_index): New.
	* internal.h: Include cpp-id-data.h.
	(uchar): Move definition to cpp-id-data.h.
	(U): Likewise.
	(cpp_macro): Likewise.
	* directives.c (struct answer): Move to cpp-id-data.h.
	(do_assert): Honour alloc_subobject.

Index: libcpp/include/ChangeLog
2004-06-09  Geoffrey Keating  <geoffk@apple.com>

	* symtab.h (struct ht): Add field 'alloc_subobject'.
	* cpplib.h (struct cpp_string): Add GTY marker.
	(enum cpp_token_fld_kind): New.
	(struct cpp_token): Add GTY markers.
	(cpp_token_val_index): Prototype.
	(CPP_HASHNODE_VALUE_IDX): New.
	(struct cpp_hashnode): Don't skip fields of 'value' when marking.
	* cpp-id-data.h: New file.

From-SVN: r82851