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> EHPadStack; 30 31 public: 32 WebAssemblyInstPrinter(const MCAsmInfo &MAI, const MCInstrInfo &MII, 33 const MCRegisterInfo &MRI); 34 35 void printRegName(raw_ostream &OS, unsigned RegNo) const override; 36 void printInst(const MCInst *MI, uint64_t Address, StringRef Annot, 37 const MCSubtargetInfo &STI, raw_ostream &OS) override; 38 39 // Used by tblegen code. 40 void printOperand(const MCInst *MI, unsigned OpNo, raw_ostream &O, 41 bool IsVariadicDef = false); 42 void printBrList(const MCInst *MI, unsigned OpNo, raw_ostream &O); 43 void printWebAssemblyP2AlignOperand(const MCInst *MI, unsigned OpNo, 44 raw_ostream &O); 45 void printWebAssemblySignatureOperand(const MCInst *MI, unsigned OpNo, 46 raw_ostream &O); 47 void printWebAssemblyHeapTypeOperand(const MCInst *MI, unsigned OpNo, 48 raw_ostream &O); 49 50 // Autogenerated by tblgen. 51 std::pair<const char *, uint64_t> getMnemonic(const MCInst *MI) override; 52 void printInstruction(const MCInst *MI, uint64_t Address, raw_ostream &O); 53 static const char *getRegisterName(unsigned RegNo); 54 }; 55 56 namespace WebAssembly { 57 58 const char *typeToString(wasm::ValType Ty); 59 const char *anyTypeToString(unsigned Ty); 60 61 std::string typeListToString(ArrayRef<wasm::ValType> List); 62 std::string signatureToString(const wasm::WasmSignature *Sig); 63 64 } // end namespace WebAssembly 65 66 } // end namespace llvm 67 68 #endif 69