1 // WebAssemblyInstPrinter.h - Print wasm MCInst to assembly syntax -*- 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 class prints an WebAssembly MCInst to wasm file syntax. 11 /// 12 //===----------------------------------------------------------------------===// 13 14 #ifndef LLVM_LIB_TARGET_WEBASSEMBLY_INSTPRINTER_WEBASSEMBLYINSTPRINTER_H 15 #define LLVM_LIB_TARGET_WEBASSEMBLY_INSTPRINTER_WEBASSEMBLYINSTPRINTER_H 16 17 #include "llvm/ADT/SmallVector.h" 18 #include "llvm/BinaryFormat/Wasm.h" 19 #include "llvm/MC/MCInstPrinter.h" 20 #include "llvm/Support/MachineValueType.h" 21 22 namespace llvm { 23 24 class MCSubtargetInfo; 25 26 class WebAssemblyInstPrinter final : public MCInstPrinter { 27 uint64_t ControlFlowCounter = 0; 28 SmallVector<std::pair<uint64_t, bool>, 4> ControlFlowStack; 29 SmallVector<uint64_t, 4> TryStack; 30 31 enum EHInstKind { TRY, CATCH, CATCH_ALL }; 32 SmallVector<EHInstKind, 4> EHInstStack; 33 34 public: 35 WebAssemblyInstPrinter(const MCAsmInfo &MAI, const MCInstrInfo &MII, 36 const MCRegisterInfo &MRI); 37 38 void printRegName(raw_ostream &OS, unsigned RegNo) const override; 39 void printInst(const MCInst *MI, uint64_t Address, StringRef Annot, 40 const MCSubtargetInfo &STI, raw_ostream &OS) override; 41 42 // Used by tblegen code. 43 void printOperand(const MCInst *MI, unsigned OpNo, raw_ostream &O, 44 bool IsVariadicDef = false); 45 void printBrList(const MCInst *MI, unsigned OpNo, raw_ostream &O); 46 void printWebAssemblyP2AlignOperand(const MCInst *MI, unsigned OpNo, 47 raw_ostream &O); 48 void printWebAssemblySignatureOperand(const MCInst *MI, unsigned OpNo, 49 raw_ostream &O); 50 51 // Autogenerated by tblgen. 52 std::pair<const char *, uint64_t> getMnemonic(const MCInst *MI) override; 53 void printInstruction(const MCInst *MI, uint64_t Address, raw_ostream &O); 54 static const char *getRegisterName(unsigned RegNo); 55 }; 56 57 } // end namespace llvm 58 59 #endif 60