--- a/hotspot/src/share/vm/opto/regmask.hpp	Fri Jan 18 05:33:32 2013 -0800
+++ b/hotspot/src/share/vm/opto/regmask.hpp	Tue Jan 22 11:31:25 2013 -0800
@@ -310,7 +310,7 @@
 
 #ifndef PRODUCT
   void print() const { dump(); }
-  void dump() const;            // Print a mask
+  void dump(outputStream *st = tty) const; // Print a mask
 #endif
 
   static const RegMask Empty;   // Common empty mask