WriteBarrier.java revision 12651:6ef01bd40ce2 
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 */
23package org.graalvm.compiler.hotspot.nodes;
24
25import org.graalvm.compiler.core.common.type.StampFactory;
26import org.graalvm.compiler.graph.NodeClass;
27import org.graalvm.compiler.nodeinfo.NodeInfo;
28import org.graalvm.compiler.nodes.FixedWithNextNode;
29import org.graalvm.compiler.nodes.spi.Lowerable;
30import org.graalvm.compiler.nodes.spi.LoweringTool;
31
32@NodeInfo
33public abstract class WriteBarrier extends FixedWithNextNode implements Lowerable {
34
35    public static final NodeClass<WriteBarrier> TYPE = NodeClass.create(WriteBarrier.class);
36
37    protected WriteBarrier(NodeClass<? extends WriteBarrier> c) {
38        super(c, StampFactory.forVoid());
39    }
40
41    @Override
42    public void lower(LoweringTool tool) {
43        assert graph().getGuardsStage().areFrameStatesAtDeopts();
44        tool.getLowerer().lower(this, tool);
45    }
46}
47