1 //==-- AArch64TargetMachine.h - Define TargetMachine for AArch64 -*- 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 AArch64 specific subclass of TargetMachine. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #ifndef LLVM_LIB_TARGET_AARCH64_AARCH64TARGETMACHINE_H 15 #define LLVM_LIB_TARGET_AARCH64_AARCH64TARGETMACHINE_H 16 17 #include "AArch64InstrInfo.h" 18 #include "AArch64Subtarget.h" 19 #include "llvm/IR/DataLayout.h" 20 #include "llvm/Target/TargetMachine.h" 21 22 namespace llvm { 23 24 class AArch64RegisterBankInfo; 25 26 class AArch64TargetMachine : public LLVMTargetMachine { 27 protected: 28 std::unique_ptr<TargetLoweringObjectFile> TLOF; 29 mutable StringMap<std::unique_ptr<AArch64Subtarget>> SubtargetMap; 30 31 public: 32 AArch64TargetMachine(const Target &T, const Triple &TT, StringRef CPU, 33 StringRef FS, const TargetOptions &Options, 34 Optional<Reloc::Model> RM, Optional<CodeModel::Model> CM, 35 CodeGenOpt::Level OL, bool JIT, bool IsLittleEndian); 36 37 ~AArch64TargetMachine() override; 38 const AArch64Subtarget *getSubtargetImpl(const Function &F) const override; 39 // DO NOT IMPLEMENT: There is no such thing as a valid default subtarget, 40 // subtargets are per-function entities based on the target-specific 41 // attributes of each function. 42 const AArch64Subtarget *getSubtargetImpl() const = delete; 43 44 // Pass Pipeline Configuration 45 TargetPassConfig *createPassConfig(PassManagerBase &PM) override; 46 47 TargetTransformInfo getTargetTransformInfo(const Function &F) override; 48 getObjFileLowering()49 TargetLoweringObjectFile* getObjFileLowering() const override { 50 return TLOF.get(); 51 } 52 53 private: 54 bool isLittle; 55 }; 56 57 // AArch64 little endian target machine. 58 // 59 class AArch64leTargetMachine : public AArch64TargetMachine { 60 virtual void anchor(); 61 public: 62 AArch64leTargetMachine(const Target &T, const Triple &TT, StringRef CPU, 63 StringRef FS, const TargetOptions &Options, 64 Optional<Reloc::Model> RM, 65 Optional<CodeModel::Model> CM, CodeGenOpt::Level OL, 66 bool JIT); 67 }; 68 69 // AArch64 big endian target machine. 70 // 71 class AArch64beTargetMachine : public AArch64TargetMachine { 72 virtual void anchor(); 73 public: 74 AArch64beTargetMachine(const Target &T, const Triple &TT, StringRef CPU, 75 StringRef FS, const TargetOptions &Options, 76 Optional<Reloc::Model> RM, 77 Optional<CodeModel::Model> CM, CodeGenOpt::Level OL, 78 bool JIT); 79 }; 80 81 } // end namespace llvm 82 83 #endif 84