--- old/src/share/vm/opto/machnode.hpp	Fri Jul 15 18:49:52 2011
+++ new/src/share/vm/opto/machnode.hpp	Fri Jul 15 18:49:52 2011
@@ -531,6 +531,7 @@
   }
 
   virtual void emit(CodeBuffer &cbuf, PhaseRegAlloc *ra_) const;
+  virtual void label_set(Label& label, uint block_num);
   virtual bool pinned() const { return true; };
   virtual void negate() { }
   virtual const class Type *bottom_type() const { return TypeTuple::IFBOTH; }
@@ -853,7 +854,7 @@
 
   virtual MachOper *clone(Compile* C) const;
 
-  virtual Label *label() const { return _label; }
+  virtual Label *label() const { assert(_label != NULL, "need Label"); return _label; }
 
   virtual uint           opcode() const;