re PR middle-end/40745 (Revision 149624 caused x86-64 failures)

2009-07-14  Richard Guenther  <rguenther@suse.de>

	PR middle-end/40745
	* cfgexpand.c (partition_stack_vars): Do not bother to update
	alias information when not optimizing.

From-SVN: r149627

gcc/ChangeLog

 2009-07-14  Richard Guenther  <rguenther@suse.de>
+
+	PR middle-end/40745
+	* cfgexpand.c (partition_stack_vars): Do not bother to update
+	alias information when not optimizing.
+
+2009-07-14  Richard Guenther  <rguenther@suse.de>
 	Andrey Belevantsev <abel@ispras.ru>
 
 	* tree-ssa-alias.h (refs_may_alias_p_1): Declare.

gcc/cfgexpand.c

@@ -1031,7 +1031,8 @@ partition_stack_vars (void)
 	}
     }
 
-  update_alias_info_with_stack_vars ();
+  if (optimize)
+    update_alias_info_with_stack_vars ();
 }
 
 /* A debugging aid for expand_used_vars.  Dump the generated partitions.  */