*** old/src/share/vm/adlc/formssel.cpp	Mon Dec  8 17:22:57 2008
--- new/src/share/vm/adlc/formssel.cpp	Mon Dec  8 17:22:56 2008

*** 1100,1113 ****
--- 1100,1110 ----
      // no predicates means they are identical
      return true;
    }
    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;
      }
    }
  
    return false;