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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
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package com.oracle.svm.core.graal.nodes;

import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_IGNORED;
import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_IGNORED;

import org.graalvm.compiler.core.common.type.StampFactory;
import org.graalvm.compiler.graph.NodeClass;
import org.graalvm.compiler.graph.spi.Simplifiable;
import org.graalvm.compiler.graph.spi.SimplifierTool;
import org.graalvm.compiler.nodeinfo.NodeInfo;
import org.graalvm.compiler.nodes.FixedWithNextNode;

@NodeInfo(size = SIZE_IGNORED, cycles = CYCLES_IGNORED)
public final class UnreachableNode extends FixedWithNextNode implements Simplifiable {
    public static final NodeClass<UnreachableNode> TYPE = NodeClass.create(UnreachableNode.class);

    public UnreachableNode() {
        super(TYPE, StampFactory.object());
    }

    @Override
    public void simplify(SimplifierTool tool) {
        tool.deleteBranch(next());
        replaceAtPredecessor(graph().add(new DeadEndNode()));
        safeDelete();
    }

    @NodeIntrinsic
    public static native RuntimeException unreachable();
}