lib/Target/PTX/PTXInstrInfo.h

   1 //===- PTXInstrInfo.h - PTX Instruction Information -------------*- 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 contains the PTX implementation of the TargetInstrInfo class.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #ifndef PTX_INSTR_INFO_H
  15 #define PTX_INSTR_INFO_H
  16
  17 #include "PTXRegisterInfo.h"
  18 #include "llvm/CodeGen/SelectionDAG.h"
  19 #include "llvm/CodeGen/SelectionDAGNodes.h"
  20 #include "llvm/Target/TargetInstrInfo.h"
  21
  22 namespace llvm {
  23 class PTXTargetMachine;
  24
  25 class PTXInstrInfo : public TargetInstrInfoImpl {
  26   private:
  27     const PTXRegisterInfo RI;
  28     PTXTargetMachine &TM;
  29
  30   public:
  31     explicit PTXInstrInfo(PTXTargetMachine &_TM);
  32
  33     virtual const PTXRegisterInfo &getRegisterInfo() const { return RI; }
  34
  35     virtual void copyPhysReg(MachineBasicBlock &MBB,
  36                              MachineBasicBlock::iterator I, DebugLoc DL,
  37                              unsigned DstReg, unsigned SrcReg,
  38                              bool KillSrc) const;
  39
  40     virtual bool copyRegToReg(MachineBasicBlock &MBB,
  41                               MachineBasicBlock::iterator I,
  42                               unsigned DstReg, unsigned SrcReg,
  43                               const TargetRegisterClass *DstRC,
  44                               const TargetRegisterClass *SrcRC,
  45                               DebugLoc DL) const;
  46
  47     virtual bool isMoveInstr(const MachineInstr& MI,
  48                              unsigned &SrcReg, unsigned &DstReg,
  49                              unsigned &SrcSubIdx, unsigned &DstSubIdx) const;
  50
  51     // static helper routines
  52
  53     static MachineSDNode *GetPTXMachineNode(SelectionDAG *DAG, unsigned Opcode,
  54                                             DebugLoc dl, EVT VT,
  55                                             SDValue Op1) {
  56       SDValue pred_reg = DAG->getRegister(0, MVT::i1);
  57       SDValue pred_imm = DAG->getTargetConstant(0, MVT::i32);
  58       SDValue ops[] = { Op1, pred_reg, pred_imm };
  59       return DAG->getMachineNode(Opcode, dl, VT, ops, array_lengthof(ops));
  60     }
  61
  62     static MachineSDNode *GetPTXMachineNode(SelectionDAG *DAG, unsigned Opcode,
  63                                             DebugLoc dl, EVT VT,
  64                                             SDValue Op1,
  65                                             SDValue Op2) {
  66       SDValue pred_reg = DAG->getRegister(0, MVT::i1);
  67       SDValue pred_imm = DAG->getTargetConstant(0, MVT::i32);
  68       SDValue ops[] = { Op1, Op2, pred_reg, pred_imm };
  69       return DAG->getMachineNode(Opcode, dl, VT, ops, array_lengthof(ops));
  70     }
  71
  72   }; // class PTXInstrInfo
  73 } // namespace llvm
  74
  75 #endif // PTX_INSTR_INFO_H