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 #include <optional> 21 22 namespace llvm { 23 24 class WebAssemblyTargetMachine final : public LLVMTargetMachine { 25 std::unique_ptr<TargetLoweringObjectFile> TLOF; 26 mutable StringMap<std::unique_ptr<WebAssemblySubtarget>> SubtargetMap; 27 bool UsesMultivalueABI = false; 28 29 public: 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 getObjFileLowering()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 usesPhysRegsForValues()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 usesMultivalueABI()67 bool usesMultivalueABI() const { return UsesMultivalueABI; } 68 }; 69 70 } // end namespace llvm 71 72 #endif 73