1/*
2 * Copyright (c) 2012, 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.nodes;
24
25import static org.graalvm.compiler.nodeinfo.InputType.Association;
26import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_0;
27import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_0;
28
29import org.graalvm.compiler.debug.GraalError;
30import org.graalvm.compiler.graph.IterableNodeType;
31import org.graalvm.compiler.graph.NodeClass;
32import org.graalvm.compiler.nodeinfo.NodeInfo;
33import org.graalvm.compiler.nodes.spi.LIRLowerable;
34import org.graalvm.compiler.nodes.spi.NodeLIRBuilderTool;
35
36/**
37 * This node will be inserted at point specified by {@link StructuredGraph#getEntryBCI()}, usually
38 * by the graph builder.
39 */
40@NodeInfo(allowedUsageTypes = Association, cycles = CYCLES_0, size = SIZE_0)
41public final class EntryMarkerNode extends BeginStateSplitNode implements IterableNodeType, LIRLowerable {
42    public static final NodeClass<EntryMarkerNode> TYPE = NodeClass.create(EntryMarkerNode.class);
43
44    public EntryMarkerNode() {
45        super(TYPE);
46    }
47
48    @Override
49    public void generate(NodeLIRBuilderTool gen) {
50        throw new GraalError("OnStackReplacementNode should not survive");
51    }
52}
53