2008-03-16  Richard Guenther  <rguenther@suse.de>

	PR middle-end/35607
	* tree-ssa-loop-niter.c (expand_simple_operations): Do not
	expand TREE_INVARIANT operations that are not gimple invariant.

	* gcc.c-torture/compile/pr35607.c: New testcase.
	* gcc.dg/tree-ssa/loop-19.c: Use -O2 to avoid vectorization.

From-SVN: r133273