re PR c/8081 (ICE with variably sized types returned from nested functions)

2012-01-13  Richard Guenther  <rguenther@suse.de>

	PR middle-end/8081
	* gimplify.c (gimplify_modify_expr_rhs): For calls with a
	variable-sized result always use RSO.

	* gcc.dg/torture/pr8081.c: New testcase.

From-SVN: r183153