1 //==-- AArch64TargetMachine.h - Define TargetMachine for AArch64 -*- C++ -*-==// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // 9 // This file declares the AArch64 specific subclass of TargetMachine. 10 // 11 //===----------------------------------------------------------------------===// 12 13 #ifndef LLVM_LIB_TARGET_AARCH64_AARCH64TARGETMACHINE_H 14 #define LLVM_LIB_TARGET_AARCH64_AARCH64TARGETMACHINE_H 15 16 #include "AArch64InstrInfo.h" 17 #include "AArch64Subtarget.h" 18 #include "llvm/IR/DataLayout.h" 19 #include "llvm/Target/TargetMachine.h" 20 21 namespace llvm { 22 23 class AArch64RegisterBankInfo; 24 25 class AArch64TargetMachine : public LLVMTargetMachine { 26 protected: 27 std::unique_ptr<TargetLoweringObjectFile> TLOF; 28 mutable StringMap<std::unique_ptr<AArch64Subtarget>> SubtargetMap; 29 30 public: 31 AArch64TargetMachine(const Target &T, const Triple &TT, StringRef CPU, 32 StringRef FS, const TargetOptions &Options, 33 Optional<Reloc::Model> RM, Optional<CodeModel::Model> CM, 34 CodeGenOpt::Level OL, bool JIT, bool IsLittleEndian); 35 36 ~AArch64TargetMachine() override; 37 const AArch64Subtarget *getSubtargetImpl(const Function &F) const override; 38 // DO NOT IMPLEMENT: There is no such thing as a valid default subtarget, 39 // subtargets are per-function entities based on the target-specific 40 // attributes of each function. 41 const AArch64Subtarget *getSubtargetImpl() const = delete; 42 43 // Pass Pipeline Configuration 44 TargetPassConfig *createPassConfig(PassManagerBase &PM) override; 45 46 TargetTransformInfo getTargetTransformInfo(const Function &F) override; 47 getObjFileLowering()48 TargetLoweringObjectFile* getObjFileLowering() const override { 49 return TLOF.get(); 50 } 51 52 private: 53 bool isLittle; 54 }; 55 56 // AArch64 little endian target machine. 57 // 58 class AArch64leTargetMachine : public AArch64TargetMachine { 59 virtual void anchor(); 60 public: 61 AArch64leTargetMachine(const Target &T, const Triple &TT, StringRef CPU, 62 StringRef FS, const TargetOptions &Options, 63 Optional<Reloc::Model> RM, 64 Optional<CodeModel::Model> CM, CodeGenOpt::Level OL, 65 bool JIT); 66 }; 67 68 // AArch64 big endian target machine. 69 // 70 class AArch64beTargetMachine : public AArch64TargetMachine { 71 virtual void anchor(); 72 public: 73 AArch64beTargetMachine(const Target &T, const Triple &TT, StringRef CPU, 74 StringRef FS, const TargetOptions &Options, 75 Optional<Reloc::Model> RM, 76 Optional<CodeModel::Model> CM, CodeGenOpt::Level OL, 77 bool JIT); 78 }; 79 80 } // end namespace llvm 81 82 #endif 83