tree-ssa-structalias.c (get_constraint_for_component_ref): Handle component…

tree-ssa-structalias.c (get_constraint_for_component_ref): Handle component references view-converting an invariant address.

2009-04-17  Richard Guenther  <rguenther@suse.de>

	* tree-ssa-structalias.c (get_constraint_for_component_ref):
	Handle component references view-converting an invariant address.

From-SVN: r146288

gcc/ChangeLog

+2009-04-17  Richard Guenther  <rguenther@suse.de>
+
+	* tree-ssa-structalias.c (get_constraint_for_component_ref):
+	Handle component references view-converting an invariant address.
+
 2009-04-17  Adam Nemet  <anemet@caviumnetworks.com>
 
 	* doc/tm.texi (TARGET_DEFAULT_TARGET_FLAGS,

gcc/tree-ssa-structalias.c

@@ -3052,6 +3052,14 @@ get_constraint_for_component_ref (tree t, VEC(ce_s, heap) **results,
       else
 	result->offset = bitpos;
     }
+  else if (result->type == ADDRESSOF)
+    {
+      /* We can end up here for component references on a
+         VIEW_CONVERT_EXPR <>(&foobar).  */
+      result->type = SCALAR;
+      result->var = anything_id;
+      result->offset = 0;
+    }
   else
     gcc_unreachable ();
 }