lib/Target/WebAssembly/WebAssemblyTargetMachine.h

   1 // WebAssemblyTargetMachine.h - Define TargetMachine for WebAssembly -*- 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 /// \file
  10 /// This file declares the WebAssembly-specific subclass of
  11 /// TargetMachine.
  12 ///
  13 //===----------------------------------------------------------------------===//
  14
  15 #ifndef LLVM_LIB_TARGET_WEBASSEMBLY_WEBASSEMBLYTARGETMACHINE_H
  16 #define LLVM_LIB_TARGET_WEBASSEMBLY_WEBASSEMBLYTARGETMACHINE_H
  17
  18 #include "WebAssemblySubtarget.h"
  19 #include "llvm/Target/TargetMachine.h"
  20
  21 namespace llvm {
  22
  23 class WebAssemblyTargetMachine final : public LLVMTargetMachine {
  24   std::unique_ptr<TargetLoweringObjectFile> TLOF;
  25   mutable StringMap<std::unique_ptr<WebAssemblySubtarget>> SubtargetMap;
  26
  27 public:
  28   WebAssemblyTargetMachine(const Target &T, const Triple &TT, StringRef CPU,
  29                            StringRef FS, const TargetOptions &Options,
  30                            Optional<Reloc::Model> RM,
  31                            Optional<CodeModel::Model> CM, CodeGenOpt::Level OL,
  32                            bool JIT);
  33
  34   ~WebAssemblyTargetMachine() override;
  35
  36   const WebAssemblySubtarget *getSubtargetImpl(std::string CPU,
  37                                                std::string FS) const;
  38   const WebAssemblySubtarget *
  39   getSubtargetImpl(const Function &F) const override;
  40
  41   // Pass Pipeline Configuration
  42   TargetPassConfig *createPassConfig(PassManagerBase &PM) override;
  43
  44   TargetLoweringObjectFile *getObjFileLowering() const override {
  45     return TLOF.get();
  46   }
  47
  48   TargetTransformInfo getTargetTransformInfo(const Function &F) override;
  49
  50   bool usesPhysRegsForPEI() const override { return false; }
  51
  52   yaml::MachineFunctionInfo *createDefaultFuncInfoYAML() const override;
  53   yaml::MachineFunctionInfo *
  54   convertFuncInfoToYAML(const MachineFunction &MF) const override;
  55   bool parseMachineFunctionInfo(const yaml::MachineFunctionInfo &,
  56                                 PerFunctionMIParsingState &PFS,
  57                                 SMDiagnostic &Error,
  58                                 SMRange &SourceRange) const override;
  59 };
  60
  61 } // end namespace llvm
  62
  63 #endif