2007-09-01  Richard Guenther  <rguenther@suse.de>

	* tree-ssa-alias.c (create_name_tags): Use TYPE_VOLATILE
	instead of TREE_THIS_VOLATILE.
	* tree-ssa-operands.c (add_virtual_operand): Do not set
	has_volatile_ops.  Do not check s_ann for NULL.
	(get_indirect_ref_operands): Likewise.
	(get_expr_operands): Likewise.  For all reference trees
	set has_volatile_ops based on TREE_THIS_VOLATILE.  Also
	check base of reference for TREE_THIS_VOLATILE.

From-SVN: r128012