1 // WebAssemblyInstPrinter.h - Print wasm MCInst to assembly syntax -*- C++ -*-//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
11 /// This class prints an WebAssembly MCInst to wasm file syntax.
13 //===----------------------------------------------------------------------===//
15 #ifndef LLVM_LIB_TARGET_WEBASSEMBLY_INSTPRINTER_WEBASSEMBLYINSTPRINTER_H
16 #define LLVM_LIB_TARGET_WEBASSEMBLY_INSTPRINTER_WEBASSEMBLYINSTPRINTER_H
18 #include "llvm/ADT/SmallVector.h"
19 #include "llvm/BinaryFormat/Wasm.h"
20 #include "llvm/MC/MCInstPrinter.h"
21 #include "llvm/Support/MachineValueType.h"
25 class MCSubtargetInfo;
27 class WebAssemblyInstPrinter final : public MCInstPrinter {
28 uint64_t ControlFlowCounter = 0;
29 uint64_t EHPadStackCounter = 0;
30 SmallVector<std::pair<uint64_t, bool>, 4> ControlFlowStack;
31 SmallVector<uint64_t, 4> EHPadStack;
33 enum EHInstKind { TRY, CATCH, END_TRY };
34 EHInstKind LastSeenEHInst = END_TRY;
37 WebAssemblyInstPrinter(const MCAsmInfo &MAI, const MCInstrInfo &MII,
38 const MCRegisterInfo &MRI);
40 void printRegName(raw_ostream &OS, unsigned RegNo) const override;
41 void printInst(const MCInst *MI, raw_ostream &OS, StringRef Annot,
42 const MCSubtargetInfo &STI) override;
44 // Used by tblegen code.
45 void printOperand(const MCInst *MI, unsigned OpNo, raw_ostream &O);
46 void printBrList(const MCInst *MI, unsigned OpNo, raw_ostream &O);
47 void printWebAssemblyP2AlignOperand(const MCInst *MI, unsigned OpNo,
49 void printWebAssemblySignatureOperand(const MCInst *MI, unsigned OpNo,
52 // Autogenerated by tblgen.
53 void printInstruction(const MCInst *MI, raw_ostream &O);
54 static const char *getRegisterName(unsigned RegNo);
57 namespace WebAssembly {
59 const char *typeToString(wasm::ValType Ty);
60 const char *anyTypeToString(unsigned Ty);
62 } // end namespace WebAssembly
64 } // end namespace llvm