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/CodeGen/CodeGenTargetMachineImpl.h"
20#include <optional>
21
22namespace llvm {
23
24class WebAssemblyTargetMachine final : public CodeGenTargetMachineImpl {
25 std::unique_ptr<TargetLoweringObjectFile> TLOF;
26 mutable StringMap<std::unique_ptr<WebAssemblySubtarget>> SubtargetMap;
27 bool UsesMultivalueABI = false;
28
29public:
30 WebAssemblyTargetMachine(const Target &T, const Triple &TT, StringRef CPU,
31 StringRef FS, const TargetOptions &Options,
32 std::optional<Reloc::Model> RM,
33 std::optional<CodeModel::Model> CM,
34 CodeGenOptLevel OL, bool JIT);
35
36 ~WebAssemblyTargetMachine() override;
37
38 const WebAssemblySubtarget *getSubtargetImpl() const;
39 const WebAssemblySubtarget *getSubtargetImpl(std::string CPU,
40 std::string FS) const;
41 const WebAssemblySubtarget *
42 getSubtargetImpl(const Function &F) const override;
43
44 // Pass Pipeline Configuration
45 TargetPassConfig *createPassConfig(PassManagerBase &PM) override;
46
47 TargetLoweringObjectFile *getObjFileLowering() const override {
48 return TLOF.get();
49 }
50
51 MachineFunctionInfo *
52 createMachineFunctionInfo(BumpPtrAllocator &Allocator, const Function &F,
53 const TargetSubtargetInfo *STI) const override;
54
55 TargetTransformInfo getTargetTransformInfo(const Function &F) const override;
56
57 bool usesPhysRegsForValues() const override { return false; }
58
59 yaml::MachineFunctionInfo *createDefaultFuncInfoYAML() const override;
60 yaml::MachineFunctionInfo *
61 convertFuncInfoToYAML(const MachineFunction &MF) const override;
62 bool parseMachineFunctionInfo(const yaml::MachineFunctionInfo &,
63 PerFunctionMIParsingState &PFS,
64 SMDiagnostic &Error,
65 SMRange &SourceRange) const override;
66
67 bool usesMultivalueABI() const { return UsesMultivalueABI; }
68};
69
70} // end namespace llvm
71
72#endif
73