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annotate graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/TruffleCacheImpl.java @ 16895:06c15e88d383

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added factory method to all Node classes; replaced Node classes instantiation with calls to factory methods; replaced identity tests on Node classes with ' == <node class>.getGenClass()' idiom
author Doug Simon <doug.simon@oracle.com>
date Mon, 18 Aug 2014 14:04:21 +0200
parents cbd42807a31f
children 3c54a098455f
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.oracle.graal.truffle;
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24
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25 import static com.oracle.graal.compiler.common.GraalOptions.*;
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26
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27 import java.util.*;
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28 import java.util.Map.Entry;
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29
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30 import com.oracle.graal.api.code.*;
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31 import com.oracle.graal.api.meta.*;
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32 import com.oracle.graal.compiler.common.*;
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33 import com.oracle.graal.debug.*;
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34 import com.oracle.graal.debug.Debug.Scope;
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35 import com.oracle.graal.graph.Graph.Mark;
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36 import com.oracle.graal.graph.*;
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37 import com.oracle.graal.graph.Node;
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38 import com.oracle.graal.graph.spi.*;
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39 import com.oracle.graal.java.*;
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40 import com.oracle.graal.nodes.CallTargetNode.InvokeKind;
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41 import com.oracle.graal.nodes.*;
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42 import com.oracle.graal.nodes.java.*;
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43 import com.oracle.graal.nodes.type.*;
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44 import com.oracle.graal.nodes.util.*;
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45 import com.oracle.graal.phases.*;
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46 import com.oracle.graal.phases.common.*;
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47 import com.oracle.graal.phases.common.inlining.*;
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48 import com.oracle.graal.phases.tiers.*;
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49 import com.oracle.graal.phases.util.*;
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50 import com.oracle.graal.truffle.phases.*;
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51 import com.oracle.graal.virtual.phases.ea.*;
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52 import com.oracle.truffle.api.*;
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53 import com.oracle.truffle.api.nodes.*;
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54
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55 /**
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56 * Implementation of a cache for Truffle graphs for improving partial evaluation time.
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57 */
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58 public final class TruffleCacheImpl implements TruffleCache {
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59
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60 private final Providers providers;
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61 private final GraphBuilderConfiguration config;
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62 private final GraphBuilderConfiguration configForRootGraph;
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63 private final OptimisticOptimizations optimisticOptimizations;
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64
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65 private final HashMap<List<Object>, StructuredGraph> cache = new HashMap<>();
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66 private final HashMap<List<Object>, Long> lastUsed = new HashMap<>();
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67 private final StructuredGraph markerGraph = new StructuredGraph();
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68
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69 private final ResolvedJavaType stringBuilderClass;
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70 private final ResolvedJavaType runtimeExceptionClass;
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71 private final ResolvedJavaType errorClass;
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72 private final ResolvedJavaType controlFlowExceptionClass;
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73
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74 private final ResolvedJavaMethod callBoundaryMethod;
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75 private long counter;
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76
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77 public TruffleCacheImpl(Providers providers, GraphBuilderConfiguration config, GraphBuilderConfiguration configForRootGraph, OptimisticOptimizations optimisticOptimizations) {
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78 this.providers = providers;
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79 this.config = config;
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80 this.configForRootGraph = configForRootGraph;
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81 this.optimisticOptimizations = optimisticOptimizations;
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82
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83 this.stringBuilderClass = providers.getMetaAccess().lookupJavaType(StringBuilder.class);
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84 this.runtimeExceptionClass = providers.getMetaAccess().lookupJavaType(RuntimeException.class);
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85 this.errorClass = providers.getMetaAccess().lookupJavaType(Error.class);
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86 this.controlFlowExceptionClass = providers.getMetaAccess().lookupJavaType(ControlFlowException.class);
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87
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88 try {
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89 callBoundaryMethod = providers.getMetaAccess().lookupJavaMethod(OptimizedCallTarget.class.getDeclaredMethod("callRoot", Object[].class));
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90 } catch (NoSuchMethodException ex) {
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91 throw new RuntimeException(ex);
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92 }
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93 }
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94
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95 public StructuredGraph createRootGraph(String name) {
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96 StructuredGraph graph = new StructuredGraph(name, callBoundaryMethod);
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97 new GraphBuilderPhase.Instance(providers.getMetaAccess(), configForRootGraph, TruffleCompilerImpl.Optimizations).apply(graph);
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98 return graph;
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99 }
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100
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101 public StructuredGraph lookup(final ResolvedJavaMethod method, final NodeInputList<ValueNode> arguments, final Assumptions assumptions, final CanonicalizerPhase finalCanonicalizer,
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102 boolean ignoreSlowPath) {
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103
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104 if (!ignoreSlowPath && method.getAnnotation(CompilerDirectives.SlowPath.class) != null) {
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105 return null;
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106 }
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107
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108 List<Object> key = new ArrayList<>(arguments.size() + 1);
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109 key.add(method);
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110 for (ValueNode v : arguments) {
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111 if (v.getKind() == Kind.Object) {
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112 key.add(v.stamp());
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113 }
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114 }
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115 StructuredGraph resultGraph = cache.get(key);
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116 if (resultGraph != null) {
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117 lastUsed.put(key, counter++);
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118 return resultGraph;
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119 }
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120
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121 if (resultGraph == markerGraph) {
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122 // Avoid recursive inline.
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123 return null;
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124 }
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125
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126 if (lastUsed.values().size() >= TruffleCompilerOptions.TruffleMaxCompilationCacheSize.getValue()) {
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127 lookupExceedsMaxSize();
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128 }
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129
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130 lastUsed.put(key, counter++);
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131 cache.put(key, markerGraph);
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132 try (Scope s = Debug.scope("TruffleCache", providers.getMetaAccess(), method)) {
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133
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134 final StructuredGraph graph = new StructuredGraph(method);
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135 final PhaseContext phaseContext = new PhaseContext(providers, new Assumptions(false));
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136 Mark mark = graph.getMark();
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137 new GraphBuilderPhase.Instance(phaseContext.getMetaAccess(), config, optimisticOptimizations).apply(graph);
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138
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139 for (ParameterNode param : graph.getNodes(ParameterNode.class)) {
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140 if (param.getKind() == Kind.Object) {
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141 ValueNode actualArgument = arguments.get(param.index());
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142 param.setStamp(param.stamp().join(actualArgument.stamp()));
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143 }
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144 }
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145
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146 // Intrinsify methods.
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147 new ReplaceIntrinsicsPhase(providers.getReplacements()).apply(graph);
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148
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149 // Convert deopt to guards.
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150 new ConvertDeoptimizeToGuardPhase().apply(graph);
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151
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152 CanonicalizerPhase canonicalizerPhase = new CanonicalizerPhase(!ImmutableCode.getValue());
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153 PartialEscapePhase partialEscapePhase = new PartialEscapePhase(false, canonicalizerPhase);
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154
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155 while (true) {
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156
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157 partialEscapePhase.apply(graph, phaseContext);
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158
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159 // Conditional elimination.
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160 ConditionalEliminationPhase conditionalEliminationPhase = new ConditionalEliminationPhase(phaseContext.getMetaAccess());
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161 conditionalEliminationPhase.apply(graph);
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162
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163 // Canonicalize / constant propagate.
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164 canonicalizerPhase.apply(graph, phaseContext);
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165
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166 boolean inliningProgress = false;
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167 for (MethodCallTargetNode methodCallTarget : graph.getNodes(MethodCallTargetNode.class)) {
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diff changeset
168 if (!graph.getMark().equals(mark)) {
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169 mark = lookupProcessMacroSubstitutions(graph, mark);
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170 }
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171 if (methodCallTarget.isAlive() && methodCallTarget.invoke() != null && shouldInline(methodCallTarget)) {
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172 inliningProgress = true;
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173 lookupDoInline(graph, phaseContext, canonicalizerPhase, methodCallTarget);
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174 }
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175 }
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176
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177 // Convert deopt to guards.
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178 new ConvertDeoptimizeToGuardPhase().apply(graph);
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179
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180 new EarlyReadEliminationPhase(canonicalizerPhase).apply(graph, phaseContext);
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181
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182 if (!inliningProgress) {
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183 break;
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184 }
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185 }
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186
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187 cache.put(key, graph);
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188 if (TruffleCompilerOptions.TraceTruffleCacheDetails.getValue()) {
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189 TTY.println(String.format("[truffle] added to graph cache method %s with %d nodes.", method, graph.getNodeCount()));
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190 }
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191 return graph;
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192 } catch (Throwable e) {
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193 throw Debug.handle(e);
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194 }
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195 }
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196
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197 private void lookupExceedsMaxSize() {
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198 List<Long> lastUsedList = new ArrayList<>();
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199 for (long l : lastUsed.values()) {
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200 lastUsedList.add(l);
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201 }
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202 Collections.sort(lastUsedList);
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203 long mid = lastUsedList.get(lastUsedList.size() / 2);
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204
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205 List<List<Object>> toRemoveList = new ArrayList<>();
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206 for (Entry<List<Object>, Long> entry : lastUsed.entrySet()) {
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diff changeset
207 if (entry.getValue() < mid) {
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208 toRemoveList.add(entry.getKey());
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209 }
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210 }
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211
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212 for (List<Object> entry : toRemoveList) {
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diff changeset
213 cache.remove(entry);
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214 lastUsed.remove(entry);
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215 }
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216 }
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217
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218 private Mark lookupProcessMacroSubstitutions(final StructuredGraph graph, Mark mark) throws GraalInternalError {
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219 // Make sure macro substitutions such as
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220 // CompilerDirectives.transferToInterpreter get processed first.
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221 for (Node newNode : graph.getNewNodes(mark)) {
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222 if (newNode instanceof MethodCallTargetNode) {
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223 MethodCallTargetNode methodCallTargetNode = (MethodCallTargetNode) newNode;
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224 Class<? extends FixedWithNextNode> macroSubstitution = providers.getReplacements().getMacroSubstitution(methodCallTargetNode.targetMethod());
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225 if (macroSubstitution != null) {
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226 InliningUtil.inlineMacroNode(methodCallTargetNode.invoke(), methodCallTargetNode.targetMethod(), macroSubstitution);
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227 } else {
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228 tryCutOffRuntimeExceptionsAndErrors(methodCallTargetNode);
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229 }
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230 }
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231 }
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232 return graph.getMark();
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233 }
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234
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235 private void lookupDoInline(final StructuredGraph graph, final PhaseContext phaseContext, CanonicalizerPhase canonicalizerPhase, MethodCallTargetNode methodCallTarget) {
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236 List<Node> canonicalizerUsages = new ArrayList<>();
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237 for (Node n : methodCallTarget.invoke().asNode().usages()) {
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238 if (n instanceof Canonicalizable) {
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239 canonicalizerUsages.add(n);
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240 }
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241 }
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242 List<ValueNode> argumentSnapshot = methodCallTarget.arguments().snapshot();
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243 Mark beforeInvokeMark = graph.getMark();
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244 expandInvoke(methodCallTarget);
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245 for (Node arg : argumentSnapshot) {
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246 if (arg != null && arg.recordsUsages()) {
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247 for (Node argUsage : arg.usages()) {
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248 if (graph.isNew(beforeInvokeMark, argUsage) && argUsage instanceof Canonicalizable) {
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249 canonicalizerUsages.add(argUsage);
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250 }
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251 }
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252 }
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253 }
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254 canonicalizerPhase.applyIncremental(graph, phaseContext, canonicalizerUsages);
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255 }
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256
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257 private void expandInvoke(MethodCallTargetNode methodCallTargetNode) {
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bba234a1670e grouped provider values/parameters into a Providers object (GRAAL-511)
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258 StructuredGraph inlineGraph = providers.getReplacements().getMethodSubstitution(methodCallTargetNode.targetMethod());
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259 if (inlineGraph == null) {
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260 inlineGraph = TruffleCacheImpl.this.lookup(methodCallTargetNode.targetMethod(), methodCallTargetNode.arguments(), null, null, false);
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261 }
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262 if (inlineGraph == this.markerGraph) {
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263 // Can happen for recursive calls.
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264 throw GraphUtil.approxSourceException(methodCallTargetNode, new IllegalStateException("Found illegal recursive call to " + methodCallTargetNode.targetMethod() +
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265 ", must annotate such calls with @CompilerDirectives.SlowPath!"));
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266 }
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267 Invoke invoke = methodCallTargetNode.invoke();
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5785eca138b0 improve tracking of nodes to canonicalize after inlining
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268 InliningUtil.inline(invoke, inlineGraph, true, null);
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269 }
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d2055a110396 Introduce CompilerDirectives.SlowPath annotation.
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270
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271 private boolean tryCutOffRuntimeExceptionsAndErrors(MethodCallTargetNode methodCallTargetNode) {
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272 if (methodCallTargetNode.targetMethod().isConstructor()) {
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c04bdca850a9 truffle compiler: small cleanup
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273 ResolvedJavaType declaringClass = methodCallTargetNode.targetMethod().getDeclaringClass();
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61363577a184 Move static helpers from ObjectStamp to StampTool.
Josef Eisl <josef.eisl@jku.at>
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274 ResolvedJavaType exceptionType = Objects.requireNonNull(StampTool.typeOrNull(methodCallTargetNode.receiver().stamp()));
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275
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276 boolean removeAllocation = runtimeExceptionClass.isAssignableFrom(declaringClass) || errorClass.isAssignableFrom(declaringClass);
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277 boolean isControlFlowException = controlFlowExceptionClass.isAssignableFrom(exceptionType);
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278 if (removeAllocation && !isControlFlowException) {
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06c15e88d383 added factory method to all Node classes; replaced Node classes instantiation with calls to factory methods; replaced identity tests on Node classes with ' == <node class>.getGenClass()' idiom
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279 DeoptimizeNode deoptNode = methodCallTargetNode.graph().add(DeoptimizeNode.create(DeoptimizationAction.InvalidateRecompile, DeoptimizationReason.UnreachedCode));
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280 FixedNode invokeNode = methodCallTargetNode.invoke().asNode();
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281 invokeNode.replaceAtPredecessor(deoptNode);
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282 GraphUtil.killCFG(invokeNode);
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283 return true;
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284 }
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285 }
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286 return false;
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287 }
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288
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289 private boolean shouldInline(final MethodCallTargetNode methodCallTargetNode) {
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290 boolean result = (methodCallTargetNode.invokeKind() == InvokeKind.Special || methodCallTargetNode.invokeKind() == InvokeKind.Static) && methodCallTargetNode.targetMethod().canBeInlined() &&
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820c6d353358 added ModifiersProvider as superinterface for ResolvedJava[Method|Field|Type] and implemented all checks against modifiers as default methods
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291 !methodCallTargetNode.targetMethod().isNative() && methodCallTargetNode.targetMethod().getAnnotation(ExplodeLoop.class) == null &&
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fd7fcd2d2072 replaced == with .equals() for comparisons between JavaMethod/JavaField/JavaType values
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292 methodCallTargetNode.targetMethod().getAnnotation(CompilerDirectives.SlowPath.class) == null &&
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293 !methodCallTargetNode.targetMethod().getDeclaringClass().equals(stringBuilderClass);
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294 return result;
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parents:
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295 }
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parents:
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296 }