2010-09-05  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/45535
	* tree-ssa-alias.c (indirect_ref_may_alias_decl_p): Properly
	handle TMR_INDEX2.  Make sure TMR_INDEX is not NULL before
	dereferencing it.
	(indirect_refs_may_alias_p): Likewise.

	* gcc.c-torture/compile/pr45535.c: New testcase.

From-SVN: r163877