--- a/hotspot/src/share/vm/adlc/formssel.cpp	Mon Dec 08 17:15:02 2008 -0800
+++ b/hotspot/src/share/vm/adlc/formssel.cpp	Tue Dec 09 12:41:26 2008 -0800
@@ -1102,10 +1102,7 @@
   }
   if( pred1 != NULL && pred2 != NULL ) {
     // compare the predicates
-    const char *str1 = pred1->_pred;
-    const char *str2 = pred2->_pred;
-    if( (str1 == NULL && str2 == NULL)
-        || (str1 != NULL && str2 != NULL && strcmp(str1,str2) == 0) ) {
+    if (ADLParser::equivalent_expressions(pred1->_pred, pred2->_pred)) {
       return true;
     }
   }