hotspot/src/jdk.vm.compiler/share/classes/org.graalvm.compiler.hotspot/src/org/graalvm/compiler/hotspot/nodes/DeoptimizeCallerNode.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * 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,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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package org.graalvm.compiler.hotspot.nodes;

import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_1;
import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_3;

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

import jdk.vm.ci.meta.DeoptimizationAction;
import jdk.vm.ci.meta.DeoptimizationReason;

/**
 * Removes the current frame and tail calls the uncommon trap routine.
 */
@NodeInfo(shortName = "DeoptCaller", nameTemplate = "DeoptCaller {p#reason/s}", cycles = CYCLES_1, size = SIZE_3)
public final class DeoptimizeCallerNode extends ControlSinkNode implements LIRLowerable {

    public static final NodeClass<DeoptimizeCallerNode> TYPE = NodeClass.create(DeoptimizeCallerNode.class);
    protected final DeoptimizationAction action;
    protected final DeoptimizationReason reason;

    public DeoptimizeCallerNode(DeoptimizationAction action, DeoptimizationReason reason) {
        super(TYPE, StampFactory.forVoid());
        this.action = action;
        this.reason = reason;
    }

    @Override
    public void generate(NodeLIRBuilderTool gen) {
        ((HotSpotLIRGenerator) gen.getLIRGeneratorTool()).emitDeoptimizeCaller(action, reason);
    }

    @NodeIntrinsic
    public static native void deopt(@ConstantNodeParameter DeoptimizationAction action, @ConstantNodeParameter DeoptimizationReason reason);
}