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1 // WebAssemblyInstPrinter.h - Print wasm MCInst to assembly syntax -*- C++ -*-//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 ///
10 /// \file
11 /// \brief This class prints an WebAssembly MCInst to wasm file syntax.
12 ///
13 //===----------------------------------------------------------------------===//
14 
15 #ifndef LLVM_LIB_TARGET_WEBASSEMBLY_INSTPRINTER_WEBASSEMBLYINSTPRINTER_H
16 #define LLVM_LIB_TARGET_WEBASSEMBLY_INSTPRINTER_WEBASSEMBLYINSTPRINTER_H
17 
18 #include "llvm/ADT/SmallVector.h"
19 #include "llvm/CodeGen/MachineValueType.h"
20 #include "llvm/MC/MCInstPrinter.h"
21 
22 namespace llvm {
23 
24 class MCSubtargetInfo;
25 
26 class WebAssemblyInstPrinter final : public MCInstPrinter {
27   uint64_t ControlFlowCounter;
28   SmallVector<std::pair<uint64_t, bool>, 0> ControlFlowStack;
29 
30 public:
31   WebAssemblyInstPrinter(const MCAsmInfo &MAI, const MCInstrInfo &MII,
32                          const MCRegisterInfo &MRI);
33 
34   void printRegName(raw_ostream &OS, unsigned RegNo) const override;
35   void printInst(const MCInst *MI, raw_ostream &OS, StringRef Annot,
36                  const MCSubtargetInfo &STI) override;
37 
38   // Used by tblegen code.
39   void printOperand(const MCInst *MI, unsigned OpNo, raw_ostream &O);
40   void printWebAssemblyP2AlignOperand(const MCInst *MI, unsigned OpNo,
41                                       raw_ostream &O);
42 
43   // Autogenerated by tblgen.
44   void printInstruction(const MCInst *MI, raw_ostream &O);
45   static const char *getRegisterName(unsigned RegNo);
46 };
47 
48 namespace WebAssembly {
49 
50 const char *TypeToString(MVT Ty);
51 
52 } // end namespace WebAssembly
53 
54 } // end namespace llvm
55 
56 #endif
57