src/share/vm/opto/connode.hpp

*** 242,264 ****
  // cast integer to integer (different range)
  class CastIINode: public ConstraintCastNode {
    private:
    // Can this node be removed post CCP or does it carry a required dependency?
    const bool _carry_dependency;
  
    protected:
    virtual uint cmp( const Node &n ) const;
    virtual uint size_of() const;
  
  public:
!   CastIINode(Node *n, const Type *t, bool carry_dependency = false)
!     : ConstraintCastNode(n,t), _carry_dependency(carry_dependency) {}
    virtual int Opcode() const;
    virtual uint ideal_reg() const { return Op_RegI; }
    virtual Node *Identity( PhaseTransform *phase );
    virtual const Type *Value( PhaseTransform *phase ) const;
    virtual Node *Ideal_DU_postCCP( PhaseCCP * );
  #ifndef PRODUCT
    virtual void dump_spec(outputStream *st) const;
  #endif
  };
  
--- 242,276 ----
  // cast integer to integer (different range)
  class CastIINode: public ConstraintCastNode {
    private:
    // Can this node be removed post CCP or does it carry a required dependency?
    const bool _carry_dependency;
+   // Is this node dependent on a range check?
+   const bool _range_check_dependency;
  
    protected:
    virtual uint cmp( const Node &n ) const;
    virtual uint size_of() const;
  
  public:
!   CastIINode(Node *n, const Type *t, bool carry_dependency = false, bool range_check_dependency = false)
!     : ConstraintCastNode(n,t), _carry_dependency(carry_dependency), _range_check_dependency(range_check_dependency) {
!     init_class_id(Class_CastII);
!   }
    virtual int Opcode() const;
    virtual uint ideal_reg() const { return Op_RegI; }
    virtual Node *Identity( PhaseTransform *phase );
    virtual const Type *Value( PhaseTransform *phase ) const;
    virtual Node *Ideal_DU_postCCP( PhaseCCP * );
+   const bool has_range_check() {
+  #ifdef _LP64
+      return _range_check_dependency;
+  #else
+      assert(!_range_check_dependency, "Should not have range check dependency");
+      return false;
+  #endif
+    }
  #ifndef PRODUCT
    virtual void dump_spec(outputStream *st) const;
  #endif
  };