--- a/graal/com.oracle.truffle.api/src/com/oracle/truffle/api/nodes/UnexpectedResultException.java	Fri Mar 28 08:26:21 2014 +0100
+++ b/graal/com.oracle.truffle.api/src/com/oracle/truffle/api/nodes/UnexpectedResultException.java	Fri Mar 28 08:38:49 2014 +0100
@@ -24,6 +24,8 @@
  */
 package com.oracle.truffle.api.nodes;
 
+import com.oracle.truffle.api.*;
+
 /**
  * An exception that should be thrown if the return value cannot be represented as a value of the
  * return type. The Truffle optimizer has special knowledge of this exception class and will never
@@ -41,6 +43,7 @@
      * @param result the alternative result
      */
     public UnexpectedResultException(Object result) {
+        CompilerDirectives.transferToInterpreter();
         this.result = result;
     }