SDValue lowerATOMIC_LOAD(SDValue Op, SelectionDAG &DAG) const;
SDValue lowerATOMIC_STORE(SDValue Op, SelectionDAG &DAG) const;
SDValue lowerATOMIC_LOAD_OP(SDValue Op, SelectionDAG &DAG,
SDValue lowerATOMIC_LOAD(SDValue Op, SelectionDAG &DAG) const;
SDValue lowerATOMIC_STORE(SDValue Op, SelectionDAG &DAG) const;
SDValue lowerATOMIC_LOAD_OP(SDValue Op, SelectionDAG &DAG,