1 /* 2 * Copyright (c) 2013, 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.hotspot.nodes; 24 25 import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_50; 26 import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_50; 27 28 import org.graalvm.compiler.graph.NodeClass; 29 import org.graalvm.compiler.nodeinfo.NodeInfo; 30 import org.graalvm.compiler.nodes.ValueNode; 31 import org.graalvm.compiler.nodes.memory.address.AddressNode; 32 33 @NodeInfo(cycles = CYCLES_50, size = SIZE_50) 34 public class G1PostWriteBarrier extends ObjectWriteBarrier { 35 36 public static final NodeClass<G1PostWriteBarrier> TYPE = NodeClass.create(G1PostWriteBarrier.class); 37 protected final boolean alwaysNull; 38 39 public G1PostWriteBarrier(AddressNode address, ValueNode value, boolean precise, boolean alwaysNull) { 40 this(TYPE, address, value, precise, alwaysNull); 41 } 42 43 protected G1PostWriteBarrier(NodeClass<? extends G1PostWriteBarrier> c, AddressNode address, ValueNode value, boolean precise, boolean alwaysNull) { 44 super(c, address, value, precise); 45 this.alwaysNull = alwaysNull; 46 } 47 48 public boolean alwaysNull() { 49 return alwaysNull; 50 } 51 }