--- old/src/share/vm/c1/c1_InstructionPrinter.hpp	2012-02-15 17:38:48.656903772 -0500
+++ new/src/share/vm/c1/c1_InstructionPrinter.hpp	2012-02-15 17:38:47.279680718 -0500
@@ -132,6 +132,7 @@
   virtual void do_ProfileCall    (ProfileCall*     x);
   virtual void do_ProfileInvoke  (ProfileInvoke*   x);
   virtual void do_RuntimeCall    (RuntimeCall*     x);
+  virtual void do_MemBar         (MemBar*          x);
 };
 #endif // PRODUCT