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//==-- MSP430ISelLowering.h - MSP430 DAG Lowering Interface ------*- C++ -*-==//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines the interfaces that MSP430 uses to lower LLVM code into a
// selection DAG.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_TARGET_MSP430_ISELLOWERING_H
#define LLVM_TARGET_MSP430_ISELLOWERING_H
#include "MSP430.h"
#include "llvm/CodeGen/SelectionDAG.h"
#include "llvm/Target/TargetLowering.h"
namespace llvm {
namespace MSP430ISD {
enum {
FIRST_NUMBER = ISD::BUILTIN_OP_END,
/// Return with a flag operand. Operand 0 is the chain operand.
RET_FLAG
};
}
class MSP430Subtarget;
class MSP430TargetMachine;
class MSP430TargetLowering : public TargetLowering {
public:
explicit MSP430TargetLowering(MSP430TargetMachine &TM);
/// LowerOperation - Provide custom lowering hooks for some operations.
virtual SDValue LowerOperation(SDValue Op, SelectionDAG &DAG);
/// getTargetNodeName - This method returns the name of a target specific
/// DAG node.
virtual const char *getTargetNodeName(unsigned Opcode) const;
SDValue LowerFORMAL_ARGUMENTS(SDValue Op, SelectionDAG &DAG);
SDValue LowerRET(SDValue Op, SelectionDAG &DAG);
SDValue LowerCCCArguments(SDValue Op, SelectionDAG &DAG);
private:
const MSP430Subtarget &Subtarget;
const MSP430TargetMachine &TM;
};
} // namespace llvm
#endif // LLVM_TARGET_MSP430_ISELLOWERING_H
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