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annotate lib/Target/Mips/MipsTargetMachine.h @ 121:803732b1fca8

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LLVM 5.0
author kono
date Fri, 27 Oct 2017 17:07:41 +0900
parents 1172e4bd9c6f
children 3a76565eade5
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1 //===- MipsTargetMachine.h - Define TargetMachine for Mips ------*- 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 // This file declares the Mips specific subclass of TargetMachine.
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11 //
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12 //===----------------------------------------------------------------------===//
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14 #ifndef LLVM_LIB_TARGET_MIPS_MIPSTARGETMACHINE_H
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15 #define LLVM_LIB_TARGET_MIPS_MIPSTARGETMACHINE_H
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16
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17 #include "MCTargetDesc/MipsABIInfo.h"
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18 #include "MipsSubtarget.h"
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19 #include "llvm/ADT/Optional.h"
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20 #include "llvm/ADT/StringMap.h"
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21 #include "llvm/ADT/StringRef.h"
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22 #include "llvm/Support/CodeGen.h"
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23 #include "llvm/Target/TargetMachine.h"
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24 #include <memory>
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25
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26 namespace llvm {
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27
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28 class MipsTargetMachine : public LLVMTargetMachine {
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29 bool isLittle;
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30 std::unique_ptr<TargetLoweringObjectFile> TLOF;
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31 // Selected ABI
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32 MipsABIInfo ABI;
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33 MipsSubtarget *Subtarget;
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34 MipsSubtarget DefaultSubtarget;
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35 MipsSubtarget NoMips16Subtarget;
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36 MipsSubtarget Mips16Subtarget;
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38 mutable StringMap<std::unique_ptr<MipsSubtarget>> SubtargetMap;
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39
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40 public:
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41 MipsTargetMachine(const Target &T, const Triple &TT, StringRef CPU,
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42 StringRef FS, const TargetOptions &Options,
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43 Optional<Reloc::Model> RM, Optional<CodeModel::Model> CM,
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44 CodeGenOpt::Level OL, bool JIT, bool isLittle);
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45 ~MipsTargetMachine() override;
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47 TargetIRAnalysis getTargetIRAnalysis() override;
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49 const MipsSubtarget *getSubtargetImpl() const {
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50 if (Subtarget)
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51 return Subtarget;
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52 return &DefaultSubtarget;
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53 }
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55 const MipsSubtarget *getSubtargetImpl(const Function &F) const override;
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56
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57 /// \brief Reset the subtarget for the Mips target.
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58 void resetSubtarget(MachineFunction *MF);
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60 // Pass Pipeline Configuration
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61 TargetPassConfig *createPassConfig(PassManagerBase &PM) override;
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62
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63 TargetLoweringObjectFile *getObjFileLowering() const override {
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64 return TLOF.get();
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65 }
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67 bool isLittleEndian() const { return isLittle; }
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68 const MipsABIInfo &getABI() const { return ABI; }
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69
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70 bool isMachineVerifierClean() const override {
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71 return false;
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72 }
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73 };
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75 /// Mips32/64 big endian target machine.
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76 ///
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77 class MipsebTargetMachine : public MipsTargetMachine {
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78 virtual void anchor();
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79
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80 public:
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81 MipsebTargetMachine(const Target &T, const Triple &TT, StringRef CPU,
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82 StringRef FS, const TargetOptions &Options,
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83 Optional<Reloc::Model> RM, Optional<CodeModel::Model> CM,
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84 CodeGenOpt::Level OL, bool JIT);
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85 };
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87 /// Mips32/64 little endian target machine.
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88 ///
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89 class MipselTargetMachine : public MipsTargetMachine {
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90 virtual void anchor();
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91
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92 public:
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93 MipselTargetMachine(const Target &T, const Triple &TT, StringRef CPU,
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94 StringRef FS, const TargetOptions &Options,
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95 Optional<Reloc::Model> RM, Optional<CodeModel::Model> CM,
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96 CodeGenOpt::Level OL, bool JIT);
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97 };
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99 } // end namespace llvm
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101 #endif // LLVM_LIB_TARGET_MIPS_MIPSTARGETMACHINE_H