1 //=- WebAssemblyMCCodeEmitter.cpp - Convert WebAssembly code to machine code -//
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 /// \brief This file implements the WebAssemblyMCCodeEmitter class.
13 //===----------------------------------------------------------------------===//
15 #include "MCTargetDesc/WebAssemblyMCTargetDesc.h"
16 #include "llvm/ADT/Statistic.h"
17 #include "llvm/MC/MCCodeEmitter.h"
18 #include "llvm/MC/MCFixup.h"
19 #include "llvm/MC/MCInst.h"
20 #include "llvm/MC/MCInstrInfo.h"
21 #include "llvm/MC/MCRegisterInfo.h"
22 #include "llvm/MC/MCSubtargetInfo.h"
23 #include "llvm/MC/MCSymbol.h"
24 #include "llvm/Support/raw_ostream.h"
27 #define DEBUG_TYPE "mccodeemitter"
30 class WebAssemblyMCCodeEmitter final : public MCCodeEmitter {
32 WebAssemblyMCCodeEmitter(const MCInstrInfo &, MCContext &) {}
34 ~WebAssemblyMCCodeEmitter() override {}
36 /// TableGen'erated function for getting the binary encoding for an
38 uint64_t getBinaryCodeForInstr(const MCInst &MI,
39 SmallVectorImpl<MCFixup> &Fixups,
40 const MCSubtargetInfo &STI) const;
42 /// Return binary encoding of operand. If the machine operand requires
43 /// relocation, record the relocation and return zero.
44 unsigned getMachineOpValue(const MCInst &MI, const MCOperand &MO,
45 SmallVectorImpl<MCFixup> &Fixups,
46 const MCSubtargetInfo &STI) const;
48 uint64_t getMemoryOpValue(const MCInst &MI, unsigned Op,
49 SmallVectorImpl<MCFixup> &Fixups,
50 const MCSubtargetInfo &STI) const;
52 void encodeInstruction(const MCInst &MI, raw_ostream &OS,
53 SmallVectorImpl<MCFixup> &Fixups,
54 const MCSubtargetInfo &STI) const override;
56 } // end anonymous namespace
58 MCCodeEmitter *llvm::createWebAssemblyMCCodeEmitter(const MCInstrInfo &MCII,
60 return new WebAssemblyMCCodeEmitter(MCII, Ctx);
63 void WebAssemblyMCCodeEmitter::encodeInstruction(
64 const MCInst &MI, raw_ostream &OS, SmallVectorImpl<MCFixup> &Fixups,
65 const MCSubtargetInfo &STI) const {
66 assert(false && "FIXME: not implemented yet");
69 // Encode WebAssembly Memory Operand
71 WebAssemblyMCCodeEmitter::getMemoryOpValue(const MCInst &MI, unsigned Op,
72 SmallVectorImpl<MCFixup> &Fixups,
73 const MCSubtargetInfo &STI) const {
74 assert(false && "FIXME: not implemented yet");
78 #include "WebAssemblyGenMCCodeEmitter.inc"