re PR tree-optimization/34138 (verify_ssa failed (found real variable when subvariables should have appeared))

2007-12-05  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/34138
	* tree-ssa-forwprop.c (tree_ssa_forward_propagate_single_use_vars):
	Do not forward propagate addresses if that changes volatileness of
	the pointed-to type.

	* gcc.c-torture/compile/pr34138.c: New testcase.

From-SVN: r130632