2014-06-04  Richard Biener  <rguenther@suse.de>

	* tree.h (may_be_aliased): Trust TREE_ADDRESSABLE from
	TREE_PUBLIC and DECL_EXTERNAL decls.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@211233 138bc75d-0d04-0410-961f-82ee72b054a4