llvm/lib/Target/LoongArch/LoongArchTargetMachine.h

   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