2006-12-05 Daniel Berlin <dberlin@dberlin.org>

	* tree-ssa-structalias.c (set_used_smts): Re-fix pr29156.
	Optimize to avoid marking more SMT's as used when they aren't.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@119562 138bc75d-0d04-0410-961f-82ee72b054a4