--- old/src/share/vm/opto/loopnode.hpp	2016-07-03 23:42:58.604516215 +0900
+++ new/src/share/vm/opto/loopnode.hpp	2016-07-03 23:42:58.467516784 +0900
@@ -121,7 +121,7 @@
   }
 
   virtual Node *Ideal(PhaseGVN *phase, bool can_reshape);
-  virtual int Opcode() const;
+  virtual uint Opcode() const;
   bool can_be_counted_loop(PhaseTransform* phase) const {
     return req() == 3 && in(0) != NULL &&
       in(1) != NULL && phase->type(in(1)) != Type::TOP &&
@@ -198,7 +198,7 @@
     // Will be reset (lower) if the loop's trip count is known.
   }
 
-  virtual int Opcode() const;
+  virtual uint Opcode() const;
   virtual Node *Ideal(PhaseGVN *phase, bool can_reshape);
 
   Node *init_control() const { return in(EntryControl); }
@@ -294,7 +294,7 @@
     : IfNode( control, test, prob, cnt) {
     init_class_id(Class_CountedLoopEnd);
   }
-  virtual int Opcode() const;
+  virtual uint Opcode() const;
 
   Node *cmp_node() const            { return (in(TestValue)->req() >=2) ? in(TestValue)->in(1) : NULL; }
   Node *incr() const                { Node *tmp = cmp_node(); return (tmp && tmp->req()==3) ? tmp->in(1) : NULL; }
@@ -366,7 +366,7 @@
     init_flags(Flag_is_macro);
     C->add_macro_node(this);
   }
-  virtual int Opcode() const;
+  virtual uint Opcode() const;
   virtual const Type *bottom_type() const { return TypeInt::INT; }
   virtual uint ideal_reg() const { return Op_RegI; }
   virtual const Type* Value(PhaseGVN* phase) const;