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 48 TargetLoweringObjectFile* getObjFileLowering() const override { 49 return TLOF.get(); 50 } 51 52 yaml::MachineFunctionInfo *createDefaultFuncInfoYAML() const override; 53 yaml::MachineFunctionInfo * 54 convertFuncInfoToYAML(const MachineFunction &MF) const override; 55 bool parseMachineFunctionInfo(const yaml::MachineFunctionInfo &, 56 PerFunctionMIParsingState &PFS, 57 SMDiagnostic &Error, 58 SMRange &SourceRange) const override; 59 60 private: 61 bool isLittle; 62 }; 63 64 // AArch64 little endian target machine. 65 // 66 class AArch64leTargetMachine : public AArch64TargetMachine { 67 virtual void anchor(); 68 public: 69 AArch64leTargetMachine(const Target &T, const Triple &TT, StringRef CPU, 70 StringRef FS, const TargetOptions &Options, 71 Optional<Reloc::Model> RM, 72 Optional<CodeModel::Model> CM, CodeGenOpt::Level OL, 73 bool JIT); 74 }; 75 76 // AArch64 big endian target machine. 77 // 78 class AArch64beTargetMachine : public AArch64TargetMachine { 79 virtual void anchor(); 80 public: 81 AArch64beTargetMachine(const Target &T, const Triple &TT, StringRef CPU, 82 StringRef FS, const TargetOptions &Options, 83 Optional<Reloc::Model> RM, 84 Optional<CodeModel::Model> CM, CodeGenOpt::Level OL, 85 bool JIT); 86 }; 87 88 } // end namespace llvm 89 90 #endif 91