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.hotspot.replacements.arraycopy;
024
025import jdk.internal.jvmci.meta.*;
026import static jdk.internal.jvmci.meta.LocationIdentity.*;
027
028import com.oracle.graal.graph.*;
029import com.oracle.graal.nodeinfo.*;
030import com.oracle.graal.nodes.*;
031import com.oracle.graal.nodes.spi.*;
032import com.oracle.graal.replacements.nodes.*;
033
034@NodeInfo
035public final class ArrayCopyNode extends BasicArrayCopyNode implements Virtualizable, Lowerable {
036
037    public static final NodeClass<ArrayCopyNode> TYPE = NodeClass.create(ArrayCopyNode.class);
038
039    private Kind elementKind;
040
041    public ArrayCopyNode(int bci, ValueNode src, ValueNode srcPos, ValueNode dst, ValueNode dstPos, ValueNode length) {
042        super(TYPE, src, srcPos, dst, dstPos, length, null, bci);
043        elementKind = ArrayCopySnippets.Templates.selectComponentKind(this);
044    }
045
046    @Override
047    public LocationIdentity getLocationIdentity() {
048        if (elementKind == null) {
049            elementKind = ArrayCopySnippets.Templates.selectComponentKind(this);
050        }
051        if (elementKind != null) {
052            return NamedLocationIdentity.getArrayLocation(elementKind);
053        }
054        return any();
055    }
056
057    @Override
058    public void lower(LoweringTool tool) {
059        tool.getLowerer().lower(this, tool);
060    }
061}