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 21namespace llvm { 22 23class AArch64RegisterBankInfo; 24 25class AArch64TargetMachine : public LLVMTargetMachine { 26protected: 27 std::unique_ptr<TargetLoweringObjectFile> TLOF; 28 mutable StringMap<std::unique_ptr<AArch64Subtarget>> SubtargetMap; 29 30public: 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 48 TargetLoweringObjectFile* getObjFileLowering() const override { 49 return TLOF.get(); 50 } 51 52private: 53 bool isLittle; 54}; 55 56// AArch64 little endian target machine. 57// 58class AArch64leTargetMachine : public AArch64TargetMachine { 59 virtual void anchor(); 60public: 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// 70class AArch64beTargetMachine : public AArch64TargetMachine { 71 virtual void anchor(); 72public: 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