001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *   https://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing,
013 * software distributed under the License is distributed on an
014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 * KIND, either express or implied.  See the License for the
016 * specific language governing permissions and limitations
017 * under the License.
018 */
019package org.apache.bcel.generic;
020
021/**
022 * LCMP - Compare longs:
023 *
024 * <pre>
025 * Stack: ..., value1.word1, value1.word2, value2.word1, value2.word2 -&gt; ..., result &lt;= -1, 0, 1&gt;
026 * </pre>
027 */
028public class LCMP extends Instruction implements TypedInstruction, StackProducer, StackConsumer {
029
030    /**
031     * Constructs an LCMP instruction.
032     */
033    public LCMP() {
034        super(org.apache.bcel.Const.LCMP, (short) 1);
035    }
036
037    /**
038     * Call corresponding visitor method(s). The order is: Call visitor methods of implemented interfaces first, then call
039     * methods according to the class hierarchy in descending order, that is, the most specific visitXXX() call comes last.
040     *
041     * @param v Visitor object.
042     */
043    @Override
044    public void accept(final Visitor v) {
045        v.visitTypedInstruction(this);
046        v.visitStackProducer(this);
047        v.visitStackConsumer(this);
048        v.visitLCMP(this);
049    }
050
051    /**
052     * @return Type.LONG.
053     */
054    @Override
055    public Type getType(final ConstantPoolGen cp) {
056        return Type.LONG;
057    }
058}