1 /* 2 * Copyright (c) 2009, 2015, 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.nodes.java; 24 25 import org.graalvm.compiler.core.common.type.Stamp; 26 import org.graalvm.compiler.graph.NodeClass; 27 import org.graalvm.compiler.nodeinfo.NodeInfo; 28 import org.graalvm.compiler.nodes.ValueNode; 29 import org.graalvm.compiler.nodes.spi.Lowerable; 30 import org.graalvm.compiler.nodes.spi.LoweringTool; 31 32 import jdk.vm.ci.meta.JavaKind; 33 34 /** 35 * The {@code AccessIndexedNode} class is the base class of instructions that read or write elements 36 * of an array. 37 */ 38 @NodeInfo 39 public abstract class AccessIndexedNode extends AccessArrayNode implements Lowerable { 40 41 public static final NodeClass<AccessIndexedNode> TYPE = NodeClass.create(AccessIndexedNode.class); 42 @Input protected ValueNode index; 43 protected final JavaKind elementKind; 44 45 public ValueNode index() { 46 return index; 47 } 48 49 /** 50 * Create an new AccessIndexedNode. 51 * 52 * @param stamp the result kind of the access 53 * @param array the instruction producing the array 54 * @param index the instruction producing the index 55 * @param elementKind the kind of the elements of the array 56 */ 57 protected AccessIndexedNode(NodeClass<? extends AccessIndexedNode> c, Stamp stamp, ValueNode array, ValueNode index, JavaKind elementKind) { 58 super(c, stamp, array); 59 this.index = index; 60 this.elementKind = elementKind; 61 } 62 63 /** 64 * Gets the element type of the array. 65 * 66 * @return the element type 67 */ 68 public JavaKind elementKind() { 69 return elementKind; 70 } 71 72 @Override 73 public void lower(LoweringTool tool) { 74 tool.getLowerer().lower(this, tool); 75 } 76 }