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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * 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).
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package org.graalvm.compiler.nodes;

import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_2;
import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_1;

import org.graalvm.compiler.core.common.type.StampFactory;
import org.graalvm.compiler.graph.NodeClass;
import org.graalvm.compiler.nodeinfo.NodeInfo;
import org.graalvm.compiler.nodes.spi.LIRLowerable;
import org.graalvm.compiler.nodes.spi.Lowerable;
import org.graalvm.compiler.nodes.spi.NodeLIRBuilderTool;

Marks a position in the graph where a safepoint should be emitted.
/**
 * Marks a position in the graph where a safepoint should be emitted.
 */
// @formatter:off
@NodeInfo(cycles = CYCLES_2,
          cyclesRationale = "read",
          size = SIZE_1)
// @formatter:on
public final class SafepointNode extends DeoptimizingFixedWithNextNode implements Lowerable, LIRLowerable {

    public static final NodeClass<SafepointNode> TYPE = NodeClass.create(SafepointNode.class);

    public SafepointNode() {
        super(TYPE, StampFactory.forVoid());
    }

    @Override
    public void generate(NodeLIRBuilderTool gen) {
        gen.visitSafepointNode(this);
    }

    @Override
    public boolean canDeoptimize() {
        return true;
    }
}