/* * Copyright (C) 2016 Yusuke Suzuki <utatane.tea@gmail.com> * Copyright (C) 2016-2017 Apple Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #pragma once #include "Instruction.h" #include "Interpreter.h" #include "LLIntData.h" #include "UnlinkedCodeBlock.h" namespace JSC { inline Opcode Interpreter::getOpcode(OpcodeID id) { return LLInt::getOpcode(id); } inline OpcodeID Interpreter::getOpcodeID(Opcode opcode) { #if ENABLE(COMPUTED_GOTO_OPCODES) ASSERT(isOpcode(opcode)); #if USE(LLINT_EMBEDDED_OPCODE_ID) // The OpcodeID is embedded in the int32_t word preceding the location of // the LLInt code for the opcode (see the EMBED_OPCODE_ID_IF_NEEDED macro // in LowLevelInterpreter.cpp). MacroAssemblerCodePtr codePtr(reinterpret_cast<void*>(opcode)); int32_t* opcodeIDAddress = reinterpret_cast<int32_t*>(codePtr.dataLocation()) - 1; OpcodeID opcodeID = static_cast<OpcodeID>(*opcodeIDAddress); ASSERT(opcodeID < NUMBER_OF_BYTECODE_IDS); return opcodeID; #else return opcodeIDTable().get(opcode); #endif // USE(LLINT_EMBEDDED_OPCODE_ID) #else // not ENABLE(COMPUTED_GOTO_OPCODES) return opcode; #endif } inline OpcodeID Interpreter::getOpcodeID(const Instruction& instruction) { return getOpcodeID(instruction.u.opcode); } inline OpcodeID Interpreter::getOpcodeID(const UnlinkedInstruction& instruction) { return instruction.u.opcode; } } // namespace JSC