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
21namespace llvm {
22
23class WebAssemblyTargetMachine final : public LLVMTargetMachine {
24  std::unique_ptr<TargetLoweringObjectFile> TLOF;
25  mutable StringMap<std::unique_ptr<WebAssemblySubtarget>> SubtargetMap;
26
27public:
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
64