001/*
002 * Copyright (c) 2013, 2015, Oracle and/or its affiliates. All rights reserved.
003 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
004 *
005 * This code is free software; you can redistribute it and/or modify it
006 * under the terms of the GNU General Public License version 2 only, as
007 * published by the Free Software Foundation.
008 *
009 * This code is distributed in the hope that it will be useful, but WITHOUT
010 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
011 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
012 * version 2 for more details (a copy is included in the LICENSE file that
013 * accompanied this code).
014 *
015 * You should have received a copy of the GNU General Public License version
016 * 2 along with this work; if not, write to the Free Software Foundation,
017 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
018 *
019 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
020 * or visit www.oracle.com if you need additional information or have any
021 * questions.
022 */
023package com.oracle.graal.nodes;
024
025import jdk.internal.jvmci.meta.*;
026
027import com.oracle.graal.graph.*;
028import com.oracle.graal.nodeinfo.*;
029import com.oracle.graal.nodes.memory.*;
030
031@NodeInfo(allowedUsageTypes = {InputType.Memory})
032public final class KillingBeginNode extends AbstractBeginNode implements MemoryCheckpoint.Single {
033
034    public static final NodeClass<KillingBeginNode> TYPE = NodeClass.create(KillingBeginNode.class);
035    protected LocationIdentity locationIdentity;
036
037    public KillingBeginNode(LocationIdentity locationIdentity) {
038        super(TYPE);
039        this.locationIdentity = locationIdentity;
040    }
041
042    public static KillingBeginNode begin(FixedNode with, LocationIdentity locationIdentity) {
043        if (with instanceof KillingBeginNode) {
044            return (KillingBeginNode) with;
045        }
046        KillingBeginNode begin = with.graph().add(new KillingBeginNode(locationIdentity));
047        begin.setNext(with);
048        return begin;
049    }
050
051    @Override
052    public LocationIdentity getLocationIdentity() {
053        return locationIdentity;
054    }
055}