2010-10-05  Richard Guenther  <rguenther@suse.de>

	PR middle-end/45877
	* gimple-fold.c (gimplify_and_update_call_from_tree): Handle
	case where gimplification optimizes away the stmt.

	* g++.dg/torture/pr45877.C: New testcase.

From-SVN: r164984