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