annotate lib/Target/NVPTX/NVPTXInstrInfo.h @ 131:f476a9ba4795

http://llvm.org/svn/llvm-project/compiler-rt/trunk compiler-rt
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date Fri, 16 Feb 2018 21:02:11 +0900
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1 //===- NVPTXInstrInfo.h - NVPTX Instruction Information----------*- C++ -*-===//
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2 //
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3 // The LLVM Compiler Infrastructure
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4 //
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5 // This file is distributed under the niversity of Illinois Open Source
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6 // License. See LICENSE.TXT for details.
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7 //
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8 //===----------------------------------------------------------------------===//
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9 //
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10 // This file contains the NVPTX implementation of the TargetInstrInfo class.
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11 //
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12 //===----------------------------------------------------------------------===//
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14 #ifndef LLVM_LIB_TARGET_NVPTX_NVPTXINSTRINFO_H
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15 #define LLVM_LIB_TARGET_NVPTX_NVPTXINSTRINFO_H
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16
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17 #include "NVPTX.h"
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18 #include "NVPTXRegisterInfo.h"
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19 #include "llvm/Target/TargetInstrInfo.h"
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20
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21 #define GET_INSTRINFO_HEADER
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22 #include "NVPTXGenInstrInfo.inc"
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23
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24 namespace llvm {
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25
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26 class NVPTXInstrInfo : public NVPTXGenInstrInfo {
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27 const NVPTXRegisterInfo RegInfo;
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28 virtual void anchor();
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29 public:
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30 explicit NVPTXInstrInfo();
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32 const NVPTXRegisterInfo &getRegisterInfo() const { return RegInfo; }
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33
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34 /* The following virtual functions are used in register allocation.
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35 * They are not implemented because the existing interface and the logic
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36 * at the caller side do not work for the elementized vector load and store.
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37 *
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38 * virtual unsigned isLoadFromStackSlot(const MachineInstr *MI,
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39 * int &FrameIndex) const;
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40 * virtual unsigned isStoreToStackSlot(const MachineInstr *MI,
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41 * int &FrameIndex) const;
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42 * virtual void storeRegToStackSlot(MachineBasicBlock &MBB,
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43 * MachineBasicBlock::iterator MBBI,
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44 * unsigned SrcReg, bool isKill, int FrameIndex,
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45 * const TargetRegisterClass *RC) const;
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46 * virtual void loadRegFromStackSlot(MachineBasicBlock &MBB,
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47 * MachineBasicBlock::iterator MBBI,
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48 * unsigned DestReg, int FrameIndex,
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49 * const TargetRegisterClass *RC) const;
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50 */
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51
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52 void copyPhysReg(MachineBasicBlock &MBB, MachineBasicBlock::iterator I,
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53 const DebugLoc &DL, unsigned DestReg, unsigned SrcReg,
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54 bool KillSrc) const override;
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55 virtual bool isMoveInstr(const MachineInstr &MI, unsigned &SrcReg,
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56 unsigned &DestReg) const;
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57 bool isLoadInstr(const MachineInstr &MI, unsigned &AddrSpace) const;
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58 bool isStoreInstr(const MachineInstr &MI, unsigned &AddrSpace) const;
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59
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60 // Branch analysis.
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61 bool analyzeBranch(MachineBasicBlock &MBB, MachineBasicBlock *&TBB,
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62 MachineBasicBlock *&FBB,
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63 SmallVectorImpl<MachineOperand> &Cond,
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64 bool AllowModify) const override;
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65 unsigned removeBranch(MachineBasicBlock &MBB,
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66 int *BytesRemoved = nullptr) const override;
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67 unsigned insertBranch(MachineBasicBlock &MBB, MachineBasicBlock *TBB,
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68 MachineBasicBlock *FBB, ArrayRef<MachineOperand> Cond,
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69 const DebugLoc &DL,
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70 int *BytesAdded = nullptr) const override;
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71 unsigned getLdStCodeAddrSpace(const MachineInstr &MI) const {
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72 return MI.getOperand(2).getImm();
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73 }
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74
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75 };
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76
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77 } // namespace llvm
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78
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79 #endif