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/CodeGenTypes/MachineValueType.h"
20#include "llvm/MC/MCInstPrinter.h"
21
22namespace llvm {
23
24class MCSubtargetInfo;
25
26class 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_LEGACY, CATCH_ALL_LEGACY };
32 SmallVector<EHInstKind, 4> EHInstStack;
33
34public:
35 WebAssemblyInstPrinter(const MCAsmInfo &MAI, const MCInstrInfo &MII,
36 const MCRegisterInfo &MRI);
37
38 void printRegName(raw_ostream &OS, MCRegister Reg) 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 void printCatchList(const MCInst *MI, unsigned OpNo, raw_ostream &O);
51
52 // Autogenerated by tblgen.
53 std::pair<const char *, uint64_t>
54 getMnemonic(const MCInst &MI) const override;
55 void printInstruction(const MCInst *MI, uint64_t Address, raw_ostream &O);
56 static const char *getRegisterName(MCRegister Reg);
57};
58
59} // end namespace llvm
60
61#endif
62