2006-05-01 Richard Guenther <rguenther@suse.de>

	PR tree-optimization/26726
	* tree-ssa-loop-ivopts.c (idx_find_step): Mark source of the
	problem ...
	(find_interesting_uses_address): ... we work around here
	by folding INDIRECT_REFs in the substituted base.

	* g++.dg/tree-ssa/ivopts-1.C: New testcase.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@113414 138bc75d-0d04-0410-961f-82ee72b054a4