--- a/hotspot/src/share/vm/adlc/forms.hpp	Mon Oct 08 17:04:00 2012 -0700
+++ b/hotspot/src/share/vm/adlc/forms.hpp	Tue Oct 09 10:11:38 2012 +0200
@@ -173,7 +173,8 @@
     idealC      =  7,  // Char    type
     idealS      =  8,  // String  type
     idealN      =  9,  // Narrow oop types
-    idealV      = 10   // Vector  type
+    idealNKlass = 10,  // Narrow klass types
+    idealV      = 11   // Vector  type
   };
   // Convert ideal name to a DataType, return DataType::none if not a 'ConX'
   Form::DataType  ideal_to_const_type(const char *ideal_type_name) const;