1 //=- LoongArchTargetMachine.h - Define TargetMachine for LoongArch -*- 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 LoongArch specific subclass of TargetMachine. 10 // 11 //===----------------------------------------------------------------------===// 12 13 #ifndef LLVM_LIB_TARGET_LOONGARCH_LOONGARCHTARGETMACHINE_H 14 #define LLVM_LIB_TARGET_LOONGARCH_LOONGARCHTARGETMACHINE_H 15 16 #include "LoongArchSubtarget.h" 17 #include "llvm/Target/TargetMachine.h" 18 #include <optional> 19 20 namespace llvm { 21 22 class LoongArchTargetMachine : public LLVMTargetMachine { 23 std::unique_ptr<TargetLoweringObjectFile> TLOF; 24 mutable StringMap<std::unique_ptr<LoongArchSubtarget>> SubtargetMap; 25 26 public: 27 LoongArchTargetMachine(const Target &T, const Triple &TT, StringRef CPU, 28 StringRef FS, const TargetOptions &Options, 29 std::optional<Reloc::Model> RM, 30 std::optional<CodeModel::Model> CM, CodeGenOptLevel OL, 31 bool JIT); 32 ~LoongArchTargetMachine() override; 33 34 TargetTransformInfo getTargetTransformInfo(const Function &F) const override; 35 const LoongArchSubtarget *getSubtargetImpl(const Function &F) const override; 36 const LoongArchSubtarget *getSubtargetImpl() const = delete; 37 38 // Pass Pipeline Configuration 39 TargetPassConfig *createPassConfig(PassManagerBase &PM) override; 40 41 TargetLoweringObjectFile *getObjFileLowering() const override { 42 return TLOF.get(); 43 } 44 45 MachineFunctionInfo * 46 createMachineFunctionInfo(BumpPtrAllocator &Allocator, const Function &F, 47 const TargetSubtargetInfo *STI) const override; 48 49 // Addrspacecasts are always noops. 50 bool isNoopAddrSpaceCast(unsigned SrcAS, unsigned DestAS) const override { 51 return true; 52 } 53 }; 54 55 } // end namespace llvm 56 57 #endif // LLVM_LIB_TARGET_LOONGARCH_LOONGARCHTARGETMACHINE_H 58