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//==- WebAssemblyAsmTypeCheck.h - Assembler for WebAssembly -*- C++ -*-==//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
///
/// \file
/// This file is part of the WebAssembly Assembler.
///
/// It contains code to translate a parsed .s file into MCInsts.
///
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_WEBASSEMBLY_ASMPARSER_TYPECHECK_H
#define LLVM_LIB_TARGET_WEBASSEMBLY_ASMPARSER_TYPECHECK_H
#include "llvm/MC/MCParser/MCAsmParser.h"
#include "llvm/MC/MCInstrInfo.h"
#include "llvm/BinaryFormat/Wasm.h"
#include "llvm/MC/MCSymbol.h"
namespace llvm {
class WebAssemblyAsmTypeCheck final {
MCAsmParser &Parser;
const MCInstrInfo &MII;
SmallVector<wasm::ValType, 8> Stack;
SmallVector<wasm::ValType, 16> LocalTypes;
SmallVector<wasm::ValType, 4> ReturnTypes;
wasm::WasmSignature LastSig;
bool TypeErrorThisFunction = false;
bool Unreachable = false;
bool is64;
void dumpTypeStack(Twine Msg);
bool typeError(SMLoc ErrorLoc, const Twine &Msg);
bool popType(SMLoc ErrorLoc, Optional<wasm::ValType> EVT);
bool getLocal(SMLoc ErrorLoc, const MCInst &Inst, wasm::ValType &Type);
bool checkEnd(SMLoc ErrorLoc);
bool checkSig(SMLoc ErrorLoc, const wasm::WasmSignature &Sig);
bool getSymRef(SMLoc ErrorLoc, const MCInst &Inst,
const MCSymbolRefExpr *&SymRef);
bool getGlobal(SMLoc ErrorLoc, const MCInst &Inst, wasm::ValType &Type);
public:
WebAssemblyAsmTypeCheck(MCAsmParser &Parser, const MCInstrInfo &MII, bool is64);
void funcDecl(const wasm::WasmSignature &Sig);
void localDecl(const SmallVector<wasm::ValType, 4> &Locals);
void setLastSig(const wasm::WasmSignature &Sig) { LastSig = Sig; }
bool endOfFunction(SMLoc ErrorLoc);
bool typeCheck(SMLoc ErrorLoc, const MCInst &Inst);
void Clear() {
Stack.clear();
LocalTypes.clear();
ReturnTypes.clear();
TypeErrorThisFunction = false;
Unreachable = false;
}
};
} // end namespace llvm
#endif // LLVM_LIB_TARGET_WEBASSEMBLY_ASMPARSER_TYPECHECK_H
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