1 /* 2 * Copyright (c) 2009, 2018, 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 24 25 package org.graalvm.compiler.virtual.nodes; 26 27 import java.util.List; 28 29 import org.graalvm.compiler.graph.Node; 30 import org.graalvm.compiler.graph.NodeClass; 31 import org.graalvm.compiler.graph.NodeInputList; 32 import org.graalvm.compiler.nodeinfo.NodeInfo; 33 import org.graalvm.compiler.nodes.ValueNode; 34 import org.graalvm.compiler.nodes.virtual.EscapeObjectState; 35 import org.graalvm.compiler.nodes.virtual.VirtualObjectNode; 36 37 /** 38 * This class encapsulated the virtual state of an escape analyzed object. 39 */ 40 @NodeInfo 41 public final class VirtualObjectState extends EscapeObjectState implements Node.ValueNumberable { 42 43 public static final NodeClass<VirtualObjectState> TYPE = NodeClass.create(VirtualObjectState.class); 44 @OptionalInput NodeInputList<ValueNode> values; 45 values()46 public NodeInputList<ValueNode> values() { 47 return values; 48 } 49 VirtualObjectState(VirtualObjectNode object, ValueNode[] values)50 public VirtualObjectState(VirtualObjectNode object, ValueNode[] values) { 51 super(TYPE, object); 52 assert object.entryCount() == values.length; 53 this.values = new NodeInputList<>(this, values); 54 } 55 VirtualObjectState(VirtualObjectNode object, List<ValueNode> values)56 public VirtualObjectState(VirtualObjectNode object, List<ValueNode> values) { 57 super(TYPE, object); 58 assert object.entryCount() == values.size(); 59 this.values = new NodeInputList<>(this, values); 60 } 61 62 @Override duplicateWithVirtualState()63 public VirtualObjectState duplicateWithVirtualState() { 64 return graph().addWithoutUnique(new VirtualObjectState(object(), values)); 65 } 66 67 @Override applyToNonVirtual(NodeClosure<? super ValueNode> closure)68 public void applyToNonVirtual(NodeClosure<? super ValueNode> closure) { 69 for (ValueNode value : values) { 70 if (value != null) { 71 closure.apply(this, value); 72 } 73 } 74 } 75 } 76