1 /* 2 * Copyright (c) 2015, 2018, 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.replacements; 26 27 import static org.graalvm.compiler.nodes.graphbuilderconf.IntrinsicContext.CompilationContext.INLINE_AFTER_PARSING; 28 29 import jdk.internal.vm.compiler.collections.EconomicMap; 30 import org.graalvm.compiler.bytecode.BytecodeProvider; 31 import org.graalvm.compiler.debug.DebugContext; 32 import org.graalvm.compiler.graph.SourceLanguagePositionProvider; 33 import org.graalvm.compiler.java.GraphBuilderPhase; 34 import org.graalvm.compiler.nodes.EncodedGraph; 35 import org.graalvm.compiler.nodes.GraphEncoder; 36 import org.graalvm.compiler.nodes.StructuredGraph; 37 import org.graalvm.compiler.nodes.StructuredGraph.AllowAssumptions; 38 import org.graalvm.compiler.nodes.graphbuilderconf.GraphBuilderConfiguration; 39 import org.graalvm.compiler.nodes.graphbuilderconf.InlineInvokePlugin; 40 import org.graalvm.compiler.nodes.graphbuilderconf.IntrinsicContext; 41 import org.graalvm.compiler.nodes.graphbuilderconf.InvocationPlugins; 42 import org.graalvm.compiler.nodes.graphbuilderconf.LoopExplosionPlugin; 43 import org.graalvm.compiler.nodes.graphbuilderconf.NodePlugin; 44 import org.graalvm.compiler.nodes.graphbuilderconf.ParameterPlugin; 45 import org.graalvm.compiler.phases.OptimisticOptimizations; 46 import org.graalvm.compiler.phases.common.CanonicalizerPhase; 47 import org.graalvm.compiler.loop.phases.ConvertDeoptimizeToGuardPhase; 48 import org.graalvm.compiler.phases.tiers.PhaseContext; 49 import org.graalvm.compiler.phases.util.Providers; 50 51 import jdk.vm.ci.code.Architecture; 52 import jdk.vm.ci.meta.ResolvedJavaMethod; 53 54 /** 55 * A graph decoder that provides all necessary encoded graphs on-the-fly (by parsing the methods and 56 * encoding the graphs). 57 */ 58 public class CachingPEGraphDecoder extends PEGraphDecoder { 59 60 protected final Providers providers; 61 protected final GraphBuilderConfiguration graphBuilderConfig; 62 protected final OptimisticOptimizations optimisticOpts; 63 private final AllowAssumptions allowAssumptions; 64 private final EconomicMap<ResolvedJavaMethod, EncodedGraph> graphCache; 65 66 public CachingPEGraphDecoder(Architecture architecture, StructuredGraph graph, Providers providers, GraphBuilderConfiguration graphBuilderConfig, OptimisticOptimizations optimisticOpts, 67 AllowAssumptions allowAssumptions, LoopExplosionPlugin loopExplosionPlugin, InvocationPlugins invocationPlugins, InlineInvokePlugin[] inlineInvokePlugins, 68 ParameterPlugin parameterPlugin, 69 NodePlugin[] nodePlugins, ResolvedJavaMethod callInlinedMethod, SourceLanguagePositionProvider sourceLanguagePositionProvider) { 70 super(architecture, graph, providers.getMetaAccess(), providers.getConstantReflection(), providers.getConstantFieldProvider(), providers.getStampProvider(), loopExplosionPlugin, 71 invocationPlugins, inlineInvokePlugins, parameterPlugin, nodePlugins, callInlinedMethod, sourceLanguagePositionProvider); 72 73 this.providers = providers; 74 this.graphBuilderConfig = graphBuilderConfig; 75 this.optimisticOpts = optimisticOpts; 76 this.allowAssumptions = allowAssumptions; 77 this.graphCache = EconomicMap.create(); 78 } 79 80 protected GraphBuilderPhase.Instance createGraphBuilderPhaseInstance(IntrinsicContext initialIntrinsicContext) { 81 return new GraphBuilderPhase.Instance(providers.getMetaAccess(), providers.getStampProvider(), providers.getConstantReflection(), providers.getConstantFieldProvider(), graphBuilderConfig, 82 optimisticOpts, initialIntrinsicContext); 83 } 84 85 @SuppressWarnings("try") 86 private EncodedGraph createGraph(ResolvedJavaMethod method, ResolvedJavaMethod originalMethod, BytecodeProvider intrinsicBytecodeProvider, boolean isSubstitution) { 87 // @formatter:off 88 StructuredGraph graphToEncode = new StructuredGraph.Builder(options, debug, allowAssumptions). 89 useProfilingInfo(false). 90 trackNodeSourcePosition(graphBuilderConfig.trackNodeSourcePosition()). 91 method(method). 92 setIsSubstitution(isSubstitution). 93 cancellable(graph.getCancellable()). 94 build(); 95 // @formatter:on 96 try (DebugContext.Scope scope = debug.scope("createGraph", graphToEncode)) { 97 IntrinsicContext initialIntrinsicContext = intrinsicBytecodeProvider != null ? new IntrinsicContext(originalMethod, method, intrinsicBytecodeProvider, INLINE_AFTER_PARSING) : null; 98 GraphBuilderPhase.Instance graphBuilderPhaseInstance = createGraphBuilderPhaseInstance(initialIntrinsicContext); 99 graphBuilderPhaseInstance.apply(graphToEncode); 100 101 PhaseContext context = new PhaseContext(providers); 102 new CanonicalizerPhase().apply(graphToEncode, context); 103 /* 104 * ConvertDeoptimizeToGuardPhase reduces the number of merges in the graph, so that 105 * fewer frame states will be created. This significantly reduces the number of nodes in 106 * the initial graph. 107 */ 108 new ConvertDeoptimizeToGuardPhase().apply(graphToEncode, context); 109 110 EncodedGraph encodedGraph = GraphEncoder.encodeSingleGraph(graphToEncode, architecture); 111 graphCache.put(method, encodedGraph); 112 return encodedGraph; 113 114 } catch (Throwable ex) { 115 throw debug.handle(ex); 116 } 117 } 118 119 @Override 120 protected EncodedGraph lookupEncodedGraph(ResolvedJavaMethod method, ResolvedJavaMethod originalMethod, BytecodeProvider intrinsicBytecodeProvider, boolean isSubstitution, 121 boolean trackNodeSourcePosition) { 122 EncodedGraph result = graphCache.get(method); 123 if (result == null && method.hasBytecodes()) { 124 result = createGraph(method, originalMethod, intrinsicBytecodeProvider, isSubstitution); 125 } 126 return result; 127 } 128 }