1 //===-- MipsTargetMachine.h - Define TargetMachine for Mips -----*- 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 declares the Mips specific subclass of TargetMachine. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #ifndef LLVM_LIB_TARGET_MIPS_MIPSTARGETMACHINE_H 15 #define LLVM_LIB_TARGET_MIPS_MIPSTARGETMACHINE_H 16 17 #include "MCTargetDesc/MipsABIInfo.h" 18 #include "MipsSubtarget.h" 19 #include "llvm/CodeGen/BasicTTIImpl.h" 20 #include "llvm/CodeGen/Passes.h" 21 #include "llvm/CodeGen/SelectionDAGISel.h" 22 #include "llvm/Target/TargetFrameLowering.h" 23 #include "llvm/Target/TargetMachine.h" 24 25 namespace llvm { 26 class formatted_raw_ostream; 27 class MipsRegisterInfo; 28 29 class MipsTargetMachine : public LLVMTargetMachine { 30 bool isLittle; 31 std::unique_ptr<TargetLoweringObjectFile> TLOF; 32 // Selected ABI 33 MipsABIInfo ABI; 34 MipsSubtarget *Subtarget; 35 MipsSubtarget DefaultSubtarget; 36 MipsSubtarget NoMips16Subtarget; 37 MipsSubtarget Mips16Subtarget; 38 39 mutable StringMap<std::unique_ptr<MipsSubtarget>> SubtargetMap; 40 41 public: 42 MipsTargetMachine(const Target &T, const Triple &TT, StringRef CPU, 43 StringRef FS, const TargetOptions &Options, 44 Optional<Reloc::Model> RM, CodeModel::Model CM, 45 CodeGenOpt::Level OL, bool isLittle); 46 ~MipsTargetMachine() override; 47 48 TargetIRAnalysis getTargetIRAnalysis() override; 49 50 const MipsSubtarget *getSubtargetImpl() const { 51 if (Subtarget) 52 return Subtarget; 53 return &DefaultSubtarget; 54 } 55 56 const MipsSubtarget *getSubtargetImpl(const Function &F) const override; 57 58 /// \brief Reset the subtarget for the Mips target. 59 void resetSubtarget(MachineFunction *MF); 60 61 // Pass Pipeline Configuration 62 TargetPassConfig *createPassConfig(PassManagerBase &PM) override; 63 64 TargetLoweringObjectFile *getObjFileLowering() const override { 65 return TLOF.get(); 66 } 67 68 bool isLittleEndian() const { return isLittle; } 69 const MipsABIInfo &getABI() const { return ABI; } 70 }; 71 72 /// Mips32/64 big endian target machine. 73 /// 74 class MipsebTargetMachine : public MipsTargetMachine { 75 virtual void anchor(); 76 public: 77 MipsebTargetMachine(const Target &T, const Triple &TT, StringRef CPU, 78 StringRef FS, const TargetOptions &Options, 79 Optional<Reloc::Model> RM, CodeModel::Model CM, 80 CodeGenOpt::Level OL); 81 }; 82 83 /// Mips32/64 little endian target machine. 84 /// 85 class MipselTargetMachine : public MipsTargetMachine { 86 virtual void anchor(); 87 public: 88 MipselTargetMachine(const Target &T, const Triple &TT, StringRef CPU, 89 StringRef FS, const TargetOptions &Options, 90 Optional<Reloc::Model> RM, CodeModel::Model CM, 91 CodeGenOpt::Level OL); 92 }; 93 94 } // End llvm namespace 95 96 #endif 97
