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//==-- PTXISelLowering.h - PTX 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 PTX uses to lower LLVM code into a
// selection DAG.
//
//===----------------------------------------------------------------------===//
#ifndef PTX_ISEL_LOWERING_H
#define PTX_ISEL_LOWERING_H
#include "llvm/Target/TargetLowering.h"
namespace llvm {
class PTXSubtarget;
class PTXTargetMachine;
namespace PTXISD {
enum NodeType {
FIRST_NUMBER = ISD::BUILTIN_OP_END,
LOAD_PARAM,
STORE_PARAM,
READ_PARAM,
WRITE_PARAM,
EXIT,
RET,
COPY_ADDRESS,
CALL
};
} // namespace PTXISD
class PTXTargetLowering : public TargetLowering {
public:
explicit PTXTargetLowering(TargetMachine &TM);
virtual const char *getTargetNodeName(unsigned Opcode) const;
virtual SDValue LowerOperation(SDValue Op, SelectionDAG &DAG) const;
virtual SDValue LowerSETCC(SDValue Op, SelectionDAG &DAG) const;
virtual SDValue
LowerFormalArguments(SDValue Chain,
CallingConv::ID CallConv,
bool isVarArg,
const SmallVectorImpl<ISD::InputArg> &Ins,
DebugLoc dl,
SelectionDAG &DAG,
SmallVectorImpl<SDValue> &InVals) const;
virtual SDValue
LowerReturn(SDValue Chain,
CallingConv::ID CallConv,
bool isVarArg,
const SmallVectorImpl<ISD::OutputArg> &Outs,
const SmallVectorImpl<SDValue> &OutVals,
DebugLoc dl,
SelectionDAG &DAG) const;
virtual SDValue
LowerCall(SDValue Chain, SDValue Callee,
CallingConv::ID CallConv, bool isVarArg,
bool &isTailCall,
const SmallVectorImpl<ISD::OutputArg> &Outs,
const SmallVectorImpl<SDValue> &OutVals,
const SmallVectorImpl<ISD::InputArg> &Ins,
DebugLoc dl, SelectionDAG &DAG,
SmallVectorImpl<SDValue> &InVals) const;
virtual EVT getSetCCResultType(EVT VT) const;
virtual unsigned getNumRegisters(LLVMContext &Context, EVT VT);
private:
SDValue LowerGlobalAddress(SDValue Op, SelectionDAG &DAG) const;
}; // class PTXTargetLowering
} // namespace llvm
#endif // PTX_ISEL_LOWERING_H
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