src/share/vm/opto/memnode.hpp

rev 7259 : 8062258: compiler/debug/TraceIterativeGVN.java segfaults in trace_PhaseIterGVN
Reviewed-by: ?

*** 720,730 ****
    enum {SCMEMPROJCON = (uint)-2};
    SCMemProjNode( Node *src) : ProjNode( src, SCMEMPROJCON) { }
    virtual int Opcode() const;
    virtual bool      is_CFG() const  { return false; }
    virtual const Type *bottom_type() const {return Type::MEMORY;}
!   virtual const TypePtr *adr_type() const { return in(0)->in(MemNode::Memory)->adr_type();}
    virtual uint ideal_reg() const { return 0;} // memory projections don't have a register
    virtual const Type *Value( PhaseTransform *phase ) const;
  #ifndef PRODUCT
    virtual void dump_spec(outputStream *st) const {};
  #endif
--- 720,734 ----
    enum {SCMEMPROJCON = (uint)-2};
    SCMemProjNode( Node *src) : ProjNode( src, SCMEMPROJCON) { }
    virtual int Opcode() const;
    virtual bool      is_CFG() const  { return false; }
    virtual const Type *bottom_type() const {return Type::MEMORY;}
!   virtual const TypePtr *adr_type() const {
!     Node* ctrl = in(0);
!     if (ctrl == NULL)  return NULL; // node is dead
!     return ctrl->in(MemNode::Memory)->adr_type();
!   }
    virtual uint ideal_reg() const { return 0;} // memory projections don't have a register
    virtual const Type *Value( PhaseTransform *phase ) const;
  #ifndef PRODUCT
    virtual void dump_spec(outputStream *st) const {};
  #endif