contrib/llvm/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     READ_PARAM,
  30     WRITE_PARAM,
  31     EXIT,
  32     RET,
  33     COPY_ADDRESS,
  34     CALL
  35   };
  36 }                               // namespace PTXISD
  37
  38 class PTXTargetLowering : public TargetLowering {
  39   public:
  40     explicit PTXTargetLowering(TargetMachine &TM);
  41
  42     virtual const char *getTargetNodeName(unsigned Opcode) const;
  43
  44     virtual SDValue LowerOperation(SDValue Op, SelectionDAG &DAG) const;
  45
  46     virtual SDValue LowerSETCC(SDValue Op, SelectionDAG &DAG) const;
  47
  48     virtual SDValue
  49       LowerFormalArguments(SDValue Chain,
  50                            CallingConv::ID CallConv,
  51                            bool isVarArg,
  52                            const SmallVectorImpl<ISD::InputArg> &Ins,
  53                            DebugLoc dl,
  54                            SelectionDAG &DAG,
  55                            SmallVectorImpl<SDValue> &InVals) const;
  56
  57     virtual SDValue
  58       LowerReturn(SDValue Chain,
  59                   CallingConv::ID CallConv,
  60                   bool isVarArg,
  61                   const SmallVectorImpl<ISD::OutputArg> &Outs,
  62                   const SmallVectorImpl<SDValue> &OutVals,
  63                   DebugLoc dl,
  64                   SelectionDAG &DAG) const;
  65
  66     virtual SDValue
  67       LowerCall(SDValue Chain, SDValue Callee,
  68                 CallingConv::ID CallConv, bool isVarArg,
  69                 bool &isTailCall,
  70                 const SmallVectorImpl<ISD::OutputArg> &Outs,
  71                 const SmallVectorImpl<SDValue> &OutVals,
  72                 const SmallVectorImpl<ISD::InputArg> &Ins,
  73                 DebugLoc dl, SelectionDAG &DAG,
  74                 SmallVectorImpl<SDValue> &InVals) const;
  75
  76     virtual EVT getSetCCResultType(EVT VT) const;
  77
  78     virtual unsigned getNumRegisters(LLVMContext &Context, EVT VT);
  79
  80   private:
  81     SDValue LowerGlobalAddress(SDValue Op, SelectionDAG &DAG) const;
  82 }; // class PTXTargetLowering
  83 } // namespace llvm
  84
  85 #endif // PTX_ISEL_LOWERING_H