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1 //===-- Thumb1InstrInfo.h - Thumb-1 Instruction Information -----*- C++ -*-===//
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2 //
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3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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4 // See https://llvm.org/LICENSE.txt for license information.
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5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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6 //
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7 //===----------------------------------------------------------------------===//
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8 //
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9 // This file contains the Thumb-1 implementation of the TargetInstrInfo class.
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10 //
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11 //===----------------------------------------------------------------------===//
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12
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13 #ifndef LLVM_LIB_TARGET_ARM_THUMB1INSTRINFO_H
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14 #define LLVM_LIB_TARGET_ARM_THUMB1INSTRINFO_H
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15
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16 #include "ARMBaseInstrInfo.h"
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17 #include "ThumbRegisterInfo.h"
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18
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19 namespace llvm {
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20 class ARMSubtarget;
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21
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22 class Thumb1InstrInfo : public ARMBaseInstrInfo {
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23 ThumbRegisterInfo RI;
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24 public:
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25 explicit Thumb1InstrInfo(const ARMSubtarget &STI);
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26
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27 /// Return the noop instruction to use for a noop.
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28 void getNoop(MCInst &NopInst) const override;
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29
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30 // Return the non-pre/post incrementing version of 'Opc'. Return 0
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31 // if there is not such an opcode.
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32 unsigned getUnindexedOpcode(unsigned Opc) const override;
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33
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34 /// getRegisterInfo - TargetInstrInfo is a superset of MRegister info. As
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35 /// such, whenever a client has an instance of instruction info, it should
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36 /// always be able to get register info as well (through this method).
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37 ///
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38 const ThumbRegisterInfo &getRegisterInfo() const override { return RI; }
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39
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40 void copyPhysReg(MachineBasicBlock &MBB, MachineBasicBlock::iterator I,
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41 const DebugLoc &DL, unsigned DestReg, unsigned SrcReg,
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42 bool KillSrc) const override;
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43 void storeRegToStackSlot(MachineBasicBlock &MBB,
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44 MachineBasicBlock::iterator MBBI,
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45 unsigned SrcReg, bool isKill, int FrameIndex,
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46 const TargetRegisterClass *RC,
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47 const TargetRegisterInfo *TRI) const override;
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48
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49 void loadRegFromStackSlot(MachineBasicBlock &MBB,
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50 MachineBasicBlock::iterator MBBI,
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51 unsigned DestReg, int FrameIndex,
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52 const TargetRegisterClass *RC,
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53 const TargetRegisterInfo *TRI) const override;
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54
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55 bool canCopyGluedNodeDuringSchedule(SDNode *N) const override;
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56 private:
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57 void expandLoadStackGuard(MachineBasicBlock::iterator MI) const override;
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58 };
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59 }
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60
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61 #endif
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