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 */ 23package org.graalvm.compiler.virtual.nodes; 24 25import java.util.List; 26 27import org.graalvm.compiler.graph.Node; 28import org.graalvm.compiler.graph.NodeClass; 29import org.graalvm.compiler.graph.NodeInputList; 30import org.graalvm.compiler.nodeinfo.NodeInfo; 31import org.graalvm.compiler.nodes.ValueNode; 32import org.graalvm.compiler.nodes.virtual.EscapeObjectState; 33import org.graalvm.compiler.nodes.virtual.VirtualObjectNode; 34 35/** 36 * This class encapsulated the virtual state of an escape analyzed object. 37 */ 38@NodeInfo 39public final class VirtualObjectState extends EscapeObjectState implements Node.ValueNumberable { 40 41 public static final NodeClass<VirtualObjectState> TYPE = NodeClass.create(VirtualObjectState.class); 42 @OptionalInput NodeInputList<ValueNode> values; 43 44 public NodeInputList<ValueNode> values() { 45 return values; 46 } 47 48 public VirtualObjectState(VirtualObjectNode object, ValueNode[] values) { 49 super(TYPE, object); 50 assert object.entryCount() == values.length; 51 this.values = new NodeInputList<>(this, values); 52 } 53 54 public VirtualObjectState(VirtualObjectNode object, List<ValueNode> values) { 55 super(TYPE, object); 56 assert object.entryCount() == values.size(); 57 this.values = new NodeInputList<>(this, values); 58 } 59 60 @Override 61 public VirtualObjectState duplicateWithVirtualState() { 62 return graph().addWithoutUnique(new VirtualObjectState(object(), values)); 63 } 64 65 @Override 66 public void applyToNonVirtual(NodeClosure<? super ValueNode> closure) { 67 for (ValueNode value : values) { 68 if (value != null) { 69 closure.apply(this, value); 70 } 71 } 72 } 73} 74