1 /*
   2  * Copyright (c) 2009, 2011, 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  */
  23 package org.graalvm.compiler.hotspot.nodes;
  24 
  25 import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_1;
  26 import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_3;
  27 
  28 import org.graalvm.compiler.core.common.type.StampFactory;
  29 import org.graalvm.compiler.graph.NodeClass;
  30 import org.graalvm.compiler.hotspot.HotSpotLIRGenerator;
  31 import org.graalvm.compiler.nodeinfo.NodeInfo;
  32 import org.graalvm.compiler.nodes.ControlSinkNode;
  33 import org.graalvm.compiler.nodes.spi.LIRLowerable;
  34 import org.graalvm.compiler.nodes.spi.NodeLIRBuilderTool;
  35 
  36 import jdk.vm.ci.meta.DeoptimizationAction;
  37 import jdk.vm.ci.meta.DeoptimizationReason;
  38 
  39 /**
  40  * Removes the current frame and tail calls the uncommon trap routine.
  41  */
  42 @NodeInfo(shortName = "DeoptCaller", nameTemplate = "DeoptCaller {p#reason/s}", cycles = CYCLES_1, size = SIZE_3)
  43 public final class DeoptimizeCallerNode extends ControlSinkNode implements LIRLowerable {
  44 
  45     public static final NodeClass<DeoptimizeCallerNode> TYPE = NodeClass.create(DeoptimizeCallerNode.class);
  46     protected final DeoptimizationAction action;
  47     protected final DeoptimizationReason reason;
  48 
  49     public DeoptimizeCallerNode(DeoptimizationAction action, DeoptimizationReason reason) {
  50         super(TYPE, StampFactory.forVoid());
  51         this.action = action;
  52         this.reason = reason;
  53     }
  54 
  55     @Override
  56     public void generate(NodeLIRBuilderTool gen) {
  57         ((HotSpotLIRGenerator) gen.getLIRGeneratorTool()).emitDeoptimizeCaller(action, reason);
  58     }
  59 
  60     @NodeIntrinsic
  61     public static native void deopt(@ConstantNodeParameter DeoptimizationAction action, @ConstantNodeParameter DeoptimizationReason reason);
  62 }