--- a/hotspot/src/share/vm/opto/superword.cpp	Fri Apr 18 14:30:58 2014 -0400
+++ b/hotspot/src/share/vm/opto/superword.cpp	Tue Apr 22 17:45:56 2014 -0700
@@ -1266,8 +1266,9 @@
     memops.clear();
     for (DUIterator i = upper_insert_pt->outs(); upper_insert_pt->has_out(i); i++) {
       Node* use = upper_insert_pt->out(i);
-      if (!use->is_Store())
+      if (use->is_Mem() && !use->is_Store()) {
         memops.push(use);
+      }
     }
 
     MemNode* lower_insert_pt = last;