2009-09-10  Richard Guenther  <rguenther@suse.de>

	PR middle-end/41257
	* cgraphunit.c (cgraph_emit_thunks): Emit thunks only for
	reachable nodes.
	(cgraph_finalize_compilation_unit): Compute reachability
	before emitting thunks.  Properly process aliases before
	possibly removing unreachable nodes.

	* g++.dg/torture/pr41257-2.C: New testcase.

From-SVN: r151592