2005-06-11  Daniel Berlin  <dberlin@dberlin.org>

	Fix PR tree-optimization/22005
	Fix PR tree-optimization/22025

	* tree-ssa-structalias.c (struct variable_info): Add has_union
	member.
	(create_variable_info_for):  Mark variables containing unions.
	Don't sort the field stack if notokay is true.
	(find_what_p_points_to): Convert variables containing unions back
	to their SFT's if necessary.

From-SVN: r100851