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annotate lib/Target/Mips/MipsSEFrameLowering.h @ 100:7d135dc70f03 LLVM 3.9

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LLVM 3.9
author Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
date Tue, 26 Jan 2016 22:53:40 +0900
parents afa8332a0e37
children 803732b1fca8
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1 //===-- MipsSEFrameLowering.h - Mips32/64 frame lowering --------*- 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 University 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 //
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11 //
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12 //===----------------------------------------------------------------------===//
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14 #ifndef LLVM_LIB_TARGET_MIPS_MIPSSEFRAMELOWERING_H
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15 #define LLVM_LIB_TARGET_MIPS_MIPSSEFRAMELOWERING_H
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16
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17 #include "MipsFrameLowering.h"
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18
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19 namespace llvm {
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20
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21 class MipsSEFrameLowering : public MipsFrameLowering {
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22 public:
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23 explicit MipsSEFrameLowering(const MipsSubtarget &STI);
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24
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25 /// emitProlog/emitEpilog - These methods insert prolog and epilog code into
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26 /// the function.
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27 void emitPrologue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
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28 void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
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30 int getFrameIndexReference(const MachineFunction &MF, int FI,
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31 unsigned &FrameReg) const override;
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32
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33 bool spillCalleeSavedRegisters(MachineBasicBlock &MBB,
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34 MachineBasicBlock::iterator MI,
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35 const std::vector<CalleeSavedInfo> &CSI,
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36 const TargetRegisterInfo *TRI) const override;
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37
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38 bool hasReservedCallFrame(const MachineFunction &MF) const override;
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40 void determineCalleeSaves(MachineFunction &MF, BitVector &SavedRegs,
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41 RegScavenger *RS) const override;
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42 unsigned ehDataReg(unsigned I) const;
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43
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44 private:
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45 void emitInterruptEpilogueStub(MachineFunction &MF,
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46 MachineBasicBlock &MBB) const;
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47 void emitInterruptPrologueStub(MachineFunction &MF,
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48 MachineBasicBlock &MBB) const;
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49 };
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50 } // End llvm namespace
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51
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52 #endif