1 //===-- RISCVTargetMachine.h - Define TargetMachine for RISC-V --*- 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 RISC-V specific subclass of TargetMachine. 10 // 11 //===----------------------------------------------------------------------===// 12 13 #ifndef LLVM_LIB_TARGET_RISCV_RISCVTARGETMACHINE_H 14 #define LLVM_LIB_TARGET_RISCV_RISCVTARGETMACHINE_H 15 16 #include "MCTargetDesc/RISCVMCTargetDesc.h" 17 #include "RISCVSubtarget.h" 18 #include "llvm/CodeGen/CodeGenTargetMachineImpl.h" 19 #include "llvm/IR/DataLayout.h" 20 #include <optional> 21 22 namespace llvm { 23 class RISCVTargetMachine : public CodeGenTargetMachineImpl { 24 std::unique_ptr<TargetLoweringObjectFile> TLOF; 25 mutable StringMap<std::unique_ptr<RISCVSubtarget>> SubtargetMap; 26 27 public: 28 RISCVTargetMachine(const Target &T, const Triple &TT, StringRef CPU, 29 StringRef FS, const TargetOptions &Options, 30 std::optional<Reloc::Model> RM, 31 std::optional<CodeModel::Model> CM, CodeGenOptLevel OL, 32 bool JIT); 33 34 const RISCVSubtarget *getSubtargetImpl(const Function &F) const override; 35 // DO NOT IMPLEMENT: There is no such thing as a valid default subtarget, 36 // subtargets are per-function entities based on the target-specific 37 // attributes of each function. 38 const RISCVSubtarget *getSubtargetImpl() const = delete; 39 40 TargetPassConfig *createPassConfig(PassManagerBase &PM) override; 41 42 TargetLoweringObjectFile *getObjFileLowering() const override { 43 return TLOF.get(); 44 } 45 46 MachineFunctionInfo * 47 createMachineFunctionInfo(BumpPtrAllocator &Allocator, const Function &F, 48 const TargetSubtargetInfo *STI) const override; 49 50 TargetTransformInfo getTargetTransformInfo(const Function &F) const override; 51 52 bool isNoopAddrSpaceCast(unsigned SrcAS, unsigned DstAS) const override; 53 54 yaml::MachineFunctionInfo *createDefaultFuncInfoYAML() const override; 55 yaml::MachineFunctionInfo * 56 convertFuncInfoToYAML(const MachineFunction &MF) const override; 57 bool parseMachineFunctionInfo(const yaml::MachineFunctionInfo &, 58 PerFunctionMIParsingState &PFS, 59 SMDiagnostic &Error, 60 SMRange &SourceRange) const override; 61 void registerPassBuilderCallbacks(PassBuilder &PB) override; 62 }; 63 64 std::unique_ptr<ScheduleDAGMutation> 65 createRISCVVectorMaskDAGMutation(const TargetRegisterInfo *TRI); 66 67 } // namespace llvm 68 69 #endif 70