lib/Target/PTX/PTXISelLowering.h

   1 //==-- PTXISelLowering.h - PTX DAG Lowering Interface ------------*- C++ -*-==//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 // This file defines the interfaces that PTX uses to lower LLVM code into a
  11 // selection DAG.
  12 //
  13 //===----------------------------------------------------------------------===//
  14
  15 #ifndef PTX_ISEL_LOWERING_H
  16 #define PTX_ISEL_LOWERING_H
  17
  18 #include "llvm/Target/TargetLowering.h"
  19
  20 namespace llvm {
  21 class PTXSubtarget;
  22 class PTXTargetMachine;
  23
  24 namespace PTXISD {
  25   enum NodeType {
  26     FIRST_NUMBER = ISD::BUILTIN_OP_END,
  27     LOAD_PARAM,
  28     STORE_PARAM,
  29     EXIT,
  30     RET,
  31     COPY_ADDRESS
  32   };
  33 }                               // namespace PTXISD
  34
  35 class PTXTargetLowering : public TargetLowering {
  36   public:
  37     explicit PTXTargetLowering(TargetMachine &TM);
  38
  39     virtual const char *getTargetNodeName(unsigned Opcode) const;
  40
  41     virtual SDValue LowerOperation(SDValue Op, SelectionDAG &DAG) const;
  42
  43     virtual SDValue LowerSETCC(SDValue Op, SelectionDAG &DAG) const;
  44
  45     virtual SDValue
  46       LowerFormalArguments(SDValue Chain,
  47                            CallingConv::ID CallConv,
  48                            bool isVarArg,
  49                            const SmallVectorImpl<ISD::InputArg> &Ins,
  50                            DebugLoc dl,
  51                            SelectionDAG &DAG,
  52                            SmallVectorImpl<SDValue> &InVals) const;
  53
  54     virtual SDValue
  55       LowerReturn(SDValue Chain,
  56                   CallingConv::ID CallConv,
  57                   bool isVarArg,
  58                   const SmallVectorImpl<ISD::OutputArg> &Outs,
  59                   const SmallVectorImpl<SDValue> &OutVals,
  60                   DebugLoc dl,
  61                   SelectionDAG &DAG) const;
  62
  63     virtual MVT::SimpleValueType getSetCCResultType(EVT VT) const;
  64
  65   private:
  66     SDValue LowerGlobalAddress(SDValue Op, SelectionDAG &DAG) const;
  67 }; // class PTXTargetLowering
  68 } // namespace llvm
  69
  70 #endif // PTX_ISEL_LOWERING_H