1 /* 2 * Copyright (c) 2013, 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 package org.graalvm.compiler.hotspot.replacements.arraycopy; 24 25 import jdk.vm.ci.meta.JavaKind; 26 27 import static org.graalvm.compiler.core.common.LocationIdentity.any; 28 29 import org.graalvm.compiler.core.common.LocationIdentity; 30 import org.graalvm.compiler.graph.NodeClass; 31 import org.graalvm.compiler.nodeinfo.NodeInfo; 32 import org.graalvm.compiler.nodes.NamedLocationIdentity; 33 import org.graalvm.compiler.nodes.ValueNode; 34 import org.graalvm.compiler.nodes.spi.Lowerable; 35 import org.graalvm.compiler.nodes.spi.LoweringTool; 36 import org.graalvm.compiler.nodes.spi.Virtualizable; 37 import org.graalvm.compiler.replacements.nodes.BasicArrayCopyNode; 38 39 @NodeInfo 40 public final class ArrayCopyNode extends BasicArrayCopyNode implements Virtualizable, Lowerable { 41 42 public static final NodeClass<ArrayCopyNode> TYPE = NodeClass.create(ArrayCopyNode.class); 43 44 private JavaKind elementKind; 45 46 public ArrayCopyNode(int bci, ValueNode src, ValueNode srcPos, ValueNode dst, ValueNode dstPos, ValueNode length) { 47 super(TYPE, src, srcPos, dst, dstPos, length, null, bci); 48 elementKind = ArrayCopySnippets.Templates.selectComponentKind(this); 49 } 50 51 @Override 52 public LocationIdentity getLocationIdentity() { 53 if (elementKind == null) { 54 elementKind = ArrayCopySnippets.Templates.selectComponentKind(this); 55 } 56 if (elementKind != null) { 57 return NamedLocationIdentity.getArrayLocation(elementKind); 58 } 59 return any(); 60 } 61 62 @Override 63 public void lower(LoweringTool tool) { 64 tool.getLowerer().lower(this, tool); 65 } 66 }