//==-- 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, READ_PARAM, EXIT, RET }; } // namespace PTXISD class PTXTargetLowering : public TargetLowering { public: explicit PTXTargetLowering(TargetMachine &TM); virtual const char *getTargetNodeName(unsigned Opcode) const; virtual unsigned getFunctionAlignment(const Function *F) const { return 2; } virtual SDValue LowerOperation(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; private: SDValue LowerGlobalAddress(SDValue Op, SelectionDAG &DAG) const; }; // class PTXTargetLowering } // namespace llvm #endif // PTX_ISEL_LOWERING_H