1 /* 2 * Copyright (c) 2009, 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 */ 23 24 25 package org.graalvm.compiler.nodes; 26 27 import org.graalvm.compiler.debug.DebugContext; 28 import org.graalvm.compiler.graph.NodeClass; 29 import org.graalvm.compiler.lir.gen.LIRGeneratorTool; 30 import org.graalvm.compiler.nodeinfo.NodeInfo; 31 import org.graalvm.compiler.nodes.spi.LIRLowerable; 32 import org.graalvm.compiler.nodes.spi.Lowerable; 33 import org.graalvm.compiler.nodes.spi.LoweringTool; 34 import org.graalvm.compiler.nodes.spi.NodeLIRBuilderTool; 35 36 import jdk.vm.ci.meta.DeoptimizationAction; 37 import jdk.vm.ci.meta.DeoptimizationReason; 38 import jdk.vm.ci.meta.MetaAccessProvider; 39 import jdk.vm.ci.meta.SpeculationLog; 40 import jdk.vm.ci.meta.SpeculationLog.Speculation; 41 import jdk.vm.ci.meta.Value; 42 43 @NodeInfo(shortName = "Deopt", nameTemplate = "Deopt {p#reason/s}") 44 public final class DeoptimizeNode extends AbstractDeoptimizeNode implements Lowerable, LIRLowerable, StaticDeoptimizingNode { 45 public static final int DEFAULT_DEBUG_ID = 0; 46 47 public static final NodeClass<DeoptimizeNode> TYPE = NodeClass.create(DeoptimizeNode.class); 48 protected DeoptimizationAction action; 49 protected DeoptimizationReason reason; 50 protected int debugId; 51 protected final Speculation speculation; 52 DeoptimizeNode(DeoptimizationAction action, DeoptimizationReason reason)53 public DeoptimizeNode(DeoptimizationAction action, DeoptimizationReason reason) { 54 this(action, reason, DEFAULT_DEBUG_ID, SpeculationLog.NO_SPECULATION, null); 55 } 56 DeoptimizeNode(DeoptimizationAction action, DeoptimizationReason reason, Speculation speculation)57 public DeoptimizeNode(DeoptimizationAction action, DeoptimizationReason reason, Speculation speculation) { 58 this(action, reason, DEFAULT_DEBUG_ID, speculation, null); 59 } 60 DeoptimizeNode(DeoptimizationAction action, DeoptimizationReason reason, int debugId, Speculation speculation, FrameState stateBefore)61 public DeoptimizeNode(DeoptimizationAction action, DeoptimizationReason reason, int debugId, Speculation speculation, FrameState stateBefore) { 62 super(TYPE, stateBefore); 63 assert action != null; 64 assert reason != null; 65 this.action = action; 66 this.reason = reason; 67 this.debugId = debugId; 68 assert speculation != null; 69 this.speculation = speculation; 70 } 71 72 @Override getAction()73 public DeoptimizationAction getAction() { 74 return action; 75 } 76 77 @Override setAction(DeoptimizationAction action)78 public void setAction(DeoptimizationAction action) { 79 this.action = action; 80 } 81 82 @Override getReason()83 public DeoptimizationReason getReason() { 84 return reason; 85 } 86 87 @Override setReason(DeoptimizationReason reason)88 public void setReason(DeoptimizationReason reason) { 89 this.reason = reason; 90 } 91 92 @Override lower(LoweringTool tool)93 public void lower(LoweringTool tool) { 94 tool.getLowerer().lower(this, tool); 95 } 96 97 @SuppressWarnings("deprecation") getDebugId()98 public int getDebugId() { 99 int deoptDebugId = debugId; 100 if (deoptDebugId == DEFAULT_DEBUG_ID) { 101 DebugContext debug = getDebug(); 102 if ((debug.isDumpEnabledForMethod() || debug.isLogEnabledForMethod())) { 103 deoptDebugId = this.getId(); 104 } 105 } 106 return deoptDebugId; 107 } 108 setDebugId(int debugId)109 public void setDebugId(int debugId) { 110 assert debugId != DEFAULT_DEBUG_ID; 111 this.debugId = debugId; 112 } 113 114 @Override generate(NodeLIRBuilderTool gen)115 public void generate(NodeLIRBuilderTool gen) { 116 LIRGeneratorTool tool = gen.getLIRGeneratorTool(); 117 Value actionAndReason = tool.emitJavaConstant(tool.getMetaAccess().encodeDeoptActionAndReason(action, reason, getDebugId())); 118 Value speculationValue = tool.emitJavaConstant(tool.getMetaAccess().encodeSpeculation(speculation)); 119 gen.getLIRGeneratorTool().emitDeoptimize(actionAndReason, speculationValue, gen.state(this)); 120 } 121 122 @Override getActionAndReason(MetaAccessProvider metaAccess)123 public ValueNode getActionAndReason(MetaAccessProvider metaAccess) { 124 return ConstantNode.forConstant(metaAccess.encodeDeoptActionAndReason(action, reason, getDebugId()), metaAccess, graph()); 125 } 126 127 @Override getSpeculation(MetaAccessProvider metaAccess)128 public ValueNode getSpeculation(MetaAccessProvider metaAccess) { 129 return ConstantNode.forConstant(metaAccess.encodeSpeculation(speculation), metaAccess, graph()); 130 } 131 132 @Override getSpeculation()133 public Speculation getSpeculation() { 134 return speculation; 135 } 136 137 @NodeIntrinsic deopt(@onstantNodeParameter DeoptimizationAction action, @ConstantNodeParameter DeoptimizationReason reason)138 public static native void deopt(@ConstantNodeParameter DeoptimizationAction action, @ConstantNodeParameter DeoptimizationReason reason); 139 } 140