src/share/vm/opto/connode.cpp

*** 576,587 ****
      return value->in(1);
    }
    const Type* newtype = value->bottom_type();
    if (newtype == TypeNarrowOop::NULL_PTR) {
      return phase->transform(new (phase->C, 1) ConPNode(TypePtr::NULL_PTR));
!   } else {
      return phase->transform(new (phase->C, 2) DecodeNNode(value, newtype->is_narrowoop()->make_oopptr()));
    }
  }
  
  Node* EncodePNode::Identity(PhaseTransform* phase) {
    const Type *t = phase->type( in(1) );
--- 576,590 ----
      return value->in(1);
    }
    const Type* newtype = value->bottom_type();
    if (newtype == TypeNarrowOop::NULL_PTR) {
      return phase->transform(new (phase->C, 1) ConPNode(TypePtr::NULL_PTR));
!   } else if (newtype->isa_narrowoop()) {
      return phase->transform(new (phase->C, 2) DecodeNNode(value, newtype->is_narrowoop()->make_oopptr()));
+   } else {
+     ShouldNotReachHere();
+     return NULL; // to make C++ compiler happy.
    }
  }
  
  Node* EncodePNode::Identity(PhaseTransform* phase) {
    const Type *t = phase->type( in(1) );
*** 615,624 ****
--- 618,630 ----
      ShouldNotReachHere();
      return NULL; // to make C++ compiler happy.
    }
  }
  
+ Node *EncodePNode::Ideal_DU_postCCP( PhaseCCP *ccp ) {
+   return MemNode::Ideal_common_DU_postCCP(ccp, this, in(1));
+ }
  
  //=============================================================================
  //------------------------------Identity---------------------------------------
  Node *Conv2BNode::Identity( PhaseTransform *phase ) {
    const Type *t = phase->type( in(1) );