llvm/lib/Target/RISCV/RISCVTargetMachine.h

   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