1 //===-- WebAssemblyMCInstLower.h - Lower MachineInstr to MCInst -*- 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 file declares the class to lower WebAssembly MachineInstrs to 11 /// their corresponding MCInst records. 12 /// 13 //===----------------------------------------------------------------------===// 14 15 #ifndef LLVM_LIB_TARGET_WEBASSEMBLY_WEBASSEMBLYMCINSTLOWER_H 16 #define LLVM_LIB_TARGET_WEBASSEMBLY_WEBASSEMBLYMCINSTLOWER_H 17 18 #include "llvm/BinaryFormat/Wasm.h" 19 #include "llvm/MC/MCInst.h" 20 #include "llvm/Support/Compiler.h" 21 22 namespace llvm { 23 class WebAssemblyAsmPrinter; 24 class MCContext; 25 class MCSymbol; 26 class MachineInstr; 27 class MachineOperand; 28 29 /// This class is used to lower an MachineInstr into an MCInst. 30 class LLVM_LIBRARY_VISIBILITY WebAssemblyMCInstLower { 31 MCContext &Ctx; 32 WebAssemblyAsmPrinter &Printer; 33 34 MCSymbol *GetGlobalAddressSymbol(const MachineOperand &MO) const; 35 MCSymbol *GetExternalSymbolSymbol(const MachineOperand &MO) const; 36 MCOperand lowerSymbolOperand(const MachineOperand &MO, MCSymbol *Sym) const; 37 MCOperand lowerTypeIndexOperand(SmallVector<wasm::ValType, 1> &&, 38 SmallVector<wasm::ValType, 4> &&) const; 39 40 public: 41 WebAssemblyMCInstLower(MCContext &ctx, WebAssemblyAsmPrinter &printer) 42 : Ctx(ctx), Printer(printer) {} 43 void lower(const MachineInstr *MI, MCInst &OutMI) const; 44 }; 45 } // end namespace llvm 46 47 #endif 48