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.nodes; 24 25 import static org.graalvm.compiler.nodeinfo.InputType.Memory; 26 import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_0; 27 import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_0; 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.memory.MemoryCheckpoint; 33 34 @NodeInfo(allowedUsageTypes = {Memory}, cycles = CYCLES_0, size = SIZE_0) 35 public final class KillingBeginNode extends AbstractBeginNode implements MemoryCheckpoint.Single { 36 37 public static final NodeClass<KillingBeginNode> TYPE = NodeClass.create(KillingBeginNode.class); 38 protected LocationIdentity locationIdentity; 39 40 public KillingBeginNode(LocationIdentity locationIdentity) { 41 super(TYPE); 42 this.locationIdentity = locationIdentity; 43 } 44 45 public static KillingBeginNode begin(FixedNode with, LocationIdentity locationIdentity) { 46 if (with instanceof KillingBeginNode) { 47 return (KillingBeginNode) with; 48 } 49 KillingBeginNode begin = with.graph().add(new KillingBeginNode(locationIdentity)); 50 begin.setNext(with); 51 return begin; 52 } 53 54 @Override 55 public LocationIdentity getLocationIdentity() { 56 return locationIdentity; 57 } 58 }