2009-06-29  Richard Guenther  <rguenther@suse.de>

	PR middle-end/38212
	* alias.c (find_base_decl): Remove.
	(get_deref_alias_set_1): Remove restrict handling.
	* c-common.c (c_apply_type_quals_to_decl): Do not set
	DECL_POINTER_ALIAS_SET.
	* gimplify.c (find_single_pointer_decl_1): Remove.
	(find_single_pointer_decl): Likewise.
	(internal_get_tmp_var): Remove restrict handling.
	(gimple_regimplify_operands): Likewise.
	* omp-low.c (expand_omp_atomic_pipeline): Do not set
	DECL_POINTER_ALIAS_SET. Use ref-all pointers.
	* print-tree.c (print_node): Do not print DECL_POINTER_ALIAS_SET.
	* tree.c (restrict_base_for_decl): Remove.
	(init_ttree): Do not allocate it.
	(make_node_stat): Do not set DECL_POINTER_ALIAS_SET.  Set
	LABEL_DECL_UID for label decls.
	(copy_node_stat): Do not copy restrict information.
	(decl_restrict_base_lookup): Remove.
	(decl_restrict_base_insert): Likewise.
	(print_restrict_base_statistics): Likewise.
	(dump_tree_statistics): Do not call print_restrict_base_statistics.
	* tree.h (DECL_POINTER_ALIAS_SET): Remove.
	(DECL_POINTER_ALIAS_SET_KNOWN_P): Likewise.
	(struct tree_decl_common): Rename pointer_alias_set to label_decl_uid.
	(LABEL_DECL_UID): Adjust.
	(DECL_BASED_ON_RESTRICT_P): Remove.
	(DECL_GET_RESTRICT_BASE): Likewise.
	(SET_DECL_RESTRICT_BASE): Likewise.
	(struct tree_decl_with_vis): Remove based_on_restrict_p flag.

	* config/i386/i386.c (ix86_gimplify_va_arg): Use ref-all pointers
	instead of DECL_POINTER_ALIAS_SET.
	* config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Likewise.
	* config/s390/s390.c (s390_gimplify_va_arg): Likewise.
	* config/spu/spu.c (spu_gimplify_va_arg_expr): Likewise.

	* gcc.c-torture/execute/pr38212.c: New testcase.

From-SVN: r149047