*** old/src/share/vm/opto/castnode.cpp	Tue Mar 17 11:32:57 2015
--- new/src/share/vm/opto/castnode.cpp	Tue Mar 17 11:32:56 2015

*** 71,90 ****
--- 71,80 ----
  // control copies
  Node *ConstraintCastNode::Ideal(PhaseGVN *phase, bool can_reshape){
    return (in(0) && remove_dead_region(phase, can_reshape)) ? this : NULL;
  }
  
  //------------------------------Ideal_DU_postCCP-------------------------------
  // Throw away cast after constant propagation
  Node *ConstraintCastNode::Ideal_DU_postCCP( PhaseCCP *ccp ) {
    const Type *t = ccp->type(in(1));
    ccp->hash_delete(this);
    set_type(t);                   // Turn into ID function
    ccp->hash_insert(this);
    return this;
  }
  
  uint CastIINode::size_of() const {
    return sizeof(*this);
  }
  
  uint CastIINode::cmp(const Node &n) const {

*** 162,202 ****
--- 152,171 ----
      }
    }
    return res;
  }
  
  Node *CastIINode::Ideal_DU_postCCP(PhaseCCP *ccp) {
    if (_carry_dependency) {
      return NULL;
    }
    return ConstraintCastNode::Ideal_DU_postCCP(ccp);
  }
  
  #ifndef PRODUCT
  void CastIINode::dump_spec(outputStream *st) const {
    TypeNode::dump_spec(st);
    if (_carry_dependency) {
      st->print(" carry dependency");
    }
  }
  #endif
  
  //=============================================================================
  
  //------------------------------Ideal_DU_postCCP-------------------------------
  // If not converting int->oop, throw away cast after constant propagation
  Node *CastPPNode::Ideal_DU_postCCP( PhaseCCP *ccp ) {
    const Type *t = ccp->type(in(1));
    if (!t->isa_oop_ptr() || ((in(1)->is_DecodeN()) && Matcher::gen_narrow_oop_implicit_null_checks())) {
      return NULL; // do not transform raw pointers or narrow oops
    }
    return ConstraintCastNode::Ideal_DU_postCCP(ccp);
  }
  
  
  
  //=============================================================================
  //------------------------------Identity---------------------------------------
  // If input is already higher or equal to cast type, then this is an identity.
  Node *CheckCastPPNode::Identity( PhaseTransform *phase ) {
    // Toned down to rescue meeting at a Phi 3 different oops all implementing
    // the same interface.  CompileTheWorld starting at 502, kd12rc1.zip.