2010-11-03  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/46217
	* tree-ssa.c (non_rewritable_mem_ref_base): Check if volatile
	flag matches.
	(execute_update_addresses_taken): Likewise.

	* gcc.dg/pr46217.c: New testcase.

From-SVN: r166239