1 //===-- RISCVTargetMachine.h - Define TargetMachine for RISCV ---*- 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 RISCV 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/SelectionDAGTargetInfo.h" 19 #include "llvm/IR/DataLayout.h" 20 #include "llvm/Target/TargetMachine.h" 21 22 namespace llvm { 23 class RISCVTargetMachine : public LLVMTargetMachine { 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 Optional<Reloc::Model> RM, Optional<CodeModel::Model> CM, 31 CodeGenOpt::Level OL, bool JIT); 32 33 const RISCVSubtarget *getSubtargetImpl(const Function &F) const override; 34 // DO NOT IMPLEMENT: There is no such thing as a valid default subtarget, 35 // subtargets are per-function entities based on the target-specific 36 // attributes of each function. 37 const RISCVSubtarget *getSubtargetImpl() const = delete; 38 39 TargetPassConfig *createPassConfig(PassManagerBase &PM) override; 40 41 TargetLoweringObjectFile *getObjFileLowering() const override { 42 return TLOF.get(); 43 } 44 45 TargetTransformInfo getTargetTransformInfo(const Function &F) override; 46 }; 47 } 48 49 #endif 50