Mercurial > hg > graal-jvmci-8
annotate graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/CompilationTask.java @ 13859:1e01e2644a5d
Make blocking compiles safe
author | Tom Rodriguez <tom.rodriguez@oracle.com> |
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date | Mon, 03 Feb 2014 10:43:11 -0800 |
parents | b1838411e896 |
children | 766de6735435 |
rev | line source |
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1 /* |
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2 * Copyright (c) 2012, 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.hotspot; |
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24 |
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25 import static com.oracle.graal.api.code.CodeUtil.*; |
13239 | 26 import static com.oracle.graal.compiler.GraalCompiler.*; |
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27 import static com.oracle.graal.hotspot.bridge.VMToCompilerImpl.*; |
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28 import static com.oracle.graal.nodes.StructuredGraph.*; |
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converted remaining options in GraalOptions to new system (GRAAL-27)
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29 import static com.oracle.graal.phases.GraalOptions.*; |
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30 import static com.oracle.graal.phases.common.InliningUtil.*; |
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31 |
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32 import java.lang.reflect.*; |
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33 import java.util.concurrent.*; |
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34 import java.util.concurrent.atomic.*; |
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35 |
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36 import com.oracle.graal.api.code.*; |
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37 import com.oracle.graal.api.code.CallingConvention.Type; |
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38 import com.oracle.graal.api.meta.*; |
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39 import com.oracle.graal.compiler.CompilerThreadFactory.CompilerThread; |
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40 import com.oracle.graal.debug.*; |
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41 import com.oracle.graal.debug.Debug.Scope; |
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42 import com.oracle.graal.debug.internal.*; |
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43 import com.oracle.graal.hotspot.bridge.*; |
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44 import com.oracle.graal.hotspot.meta.*; |
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45 import com.oracle.graal.hotspot.phases.*; |
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46 import com.oracle.graal.lir.asm.*; |
5138 | 47 import com.oracle.graal.nodes.*; |
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48 import com.oracle.graal.nodes.spi.*; |
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49 import com.oracle.graal.phases.*; |
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50 import com.oracle.graal.phases.tiers.*; |
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51 |
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52 public class CompilationTask implements Runnable, Comparable { |
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53 |
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54 public static final ThreadLocal<Boolean> withinEnqueue = new ThreadLocal<Boolean>() { |
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55 |
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56 @Override |
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57 protected Boolean initialValue() { |
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58 return Boolean.valueOf(Thread.currentThread() instanceof CompilerThread); |
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59 } |
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60 }; |
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61 |
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62 private enum CompilationStatus { |
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63 Queued, Running, Finished |
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64 } |
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65 |
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66 private final HotSpotBackend backend; |
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67 private final HotSpotResolvedJavaMethod method; |
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68 private final int entryBCI; |
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69 private final int id; |
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70 private final AtomicReference<CompilationStatus> status; |
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71 |
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72 private StructuredGraph graph; |
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73 |
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74 private static final AtomicLong uniqueTaskIds = new AtomicLong(); |
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75 |
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76 /** |
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77 * A long representing the sequence number of this task. Used for sorting the compile queue. |
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78 */ |
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79 private long taskId; |
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80 |
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81 private boolean blocking; |
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82 |
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83 public CompilationTask(HotSpotBackend backend, HotSpotResolvedJavaMethod method, int entryBCI, boolean blocking) { |
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84 this.backend = backend; |
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85 this.method = method; |
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86 this.entryBCI = entryBCI; |
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87 this.id = backend.getRuntime().getCompilerToVM().allocateCompileId(method, entryBCI); |
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88 this.blocking = blocking; |
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89 this.taskId = uniqueTaskIds.incrementAndGet(); |
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90 this.status = new AtomicReference<>(CompilationStatus.Queued); |
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91 } |
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92 |
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93 public ResolvedJavaMethod getMethod() { |
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94 return method; |
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95 } |
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96 |
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97 public int getId() { |
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98 return id; |
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99 } |
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100 |
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101 public int getEntryBCI() { |
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102 return entryBCI; |
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103 } |
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104 |
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105 public void run() { |
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106 withinEnqueue.set(Boolean.FALSE); |
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107 try { |
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108 runCompilation(true); |
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109 } finally { |
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110 if (method.currentTask() == this) { |
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111 method.setCurrentTask(null); |
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112 } |
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113 withinEnqueue.set(Boolean.TRUE); |
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114 status.set(CompilationStatus.Finished); |
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115 synchronized (this) { |
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116 notifyAll(); |
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117 } |
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118 } |
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119 } |
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120 |
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121 /** |
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122 * Block waiting till the compilation completes. |
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123 */ |
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124 public synchronized void block() { |
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125 while (status.get() != CompilationStatus.Finished) { |
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126 try { |
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127 wait(); |
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128 } catch (InterruptedException e) { |
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129 // Ignore and retry |
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130 } |
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131 } |
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132 } |
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133 |
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134 /** |
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135 * Sort blocking tasks before non-blocking ones and then by lowest taskId within the group. |
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136 */ |
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137 public int compareTo(Object o) { |
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138 if (!(o instanceof CompilationTask)) { |
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139 return 1; |
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140 } |
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141 CompilationTask task2 = (CompilationTask) o; |
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142 if (this.blocking != task2.blocking) { |
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143 // Blocking CompilationTasks are always higher than CompilationTasks |
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144 return task2.blocking ? 1 : -1; |
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145 } |
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146 // Within the two groups sort by sequence id, so they are processed in insertion order. |
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147 return this.taskId > task2.taskId ? 1 : -1; |
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148 } |
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149 |
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150 /** |
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151 * Time spent in compilation. |
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152 */ |
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153 public static final DebugTimer CompilationTime = Debug.timer("CompilationTime"); |
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154 |
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155 public static final DebugTimer CodeInstallationTime = Debug.timer("CodeInstallation"); |
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156 |
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157 protected Suites getSuites(HotSpotProviders providers) { |
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158 return providers.getSuites().getDefaultSuites(); |
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159 } |
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160 |
13585 | 161 protected PhaseSuite<HighTierContext> getGraphBuilderSuite(HotSpotProviders providers) { |
162 PhaseSuite<HighTierContext> suite = providers.getSuites().getDefaultGraphBuilderSuite(); | |
163 | |
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164 boolean osrCompilation = entryBCI != StructuredGraph.INVOCATION_ENTRY_BCI; |
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165 if (osrCompilation) { |
13585 | 166 suite = suite.copy(); |
167 suite.appendPhase(new OnStackReplacementPhase()); | |
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168 } |
13585 | 169 return suite; |
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170 } |
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171 |
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172 protected OptimisticOptimizations getOptimisticOpts(ProfilingInfo profilingInfo) { |
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173 return new OptimisticOptimizations(profilingInfo); |
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174 } |
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175 |
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176 protected ProfilingInfo getProfilingInfo() { |
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177 boolean osrCompilation = entryBCI != StructuredGraph.INVOCATION_ENTRY_BCI; |
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178 return method.getCompilationProfilingInfo(osrCompilation); |
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179 } |
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180 |
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181 public void runCompilation(boolean clearFromCompilationQueue) { |
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182 /* |
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183 * no code must be outside this try/finally because it could happen otherwise that |
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184 * clearQueuedForCompilation() is not executed |
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185 */ |
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186 |
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187 HotSpotVMConfig config = backend.getRuntime().getConfig(); |
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188 long previousInlinedBytecodes = InlinedBytecodes.getCurrentValue(); |
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189 long previousCompilationTime = CompilationTime.getCurrentValue(); |
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190 HotSpotInstalledCode installedCode = null; |
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191 try (TimerCloseable a = CompilationTime.start()) { |
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192 if (!tryToChangeStatus(CompilationStatus.Queued, CompilationStatus.Running) || method.hasCompiledCode()) { |
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193 return; |
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194 } |
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195 |
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196 CompilationStatistics stats = CompilationStatistics.create(method, entryBCI != StructuredGraph.INVOCATION_ENTRY_BCI); |
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197 final boolean printCompilation = PrintCompilation.getValue() && !TTY.isSuppressed(); |
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198 if (printCompilation) { |
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199 TTY.println(getMethodDescription() + "..."); |
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200 } |
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201 if (HotSpotPrintCompilation.getValue()) { |
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202 printCompilation(); |
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203 } |
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204 |
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205 CompilationResult result = null; |
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206 TTY.Filter filter = new TTY.Filter(PrintFilter.getValue(), method); |
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207 long start = System.currentTimeMillis(); |
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208 try (Scope s = Debug.scope("Compiling", new DebugDumpScope(String.valueOf(id), true))) { |
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209 GraphCache graphCache = backend.getRuntime().getGraphCache(); |
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210 if (graphCache != null) { |
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211 graphCache.removeStaleGraphs(); |
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212 } |
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213 |
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214 HotSpotProviders providers = backend.getProviders(); |
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215 Replacements replacements = providers.getReplacements(); |
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216 graph = replacements.getMethodSubstitution(method); |
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217 if (graph == null || entryBCI != INVOCATION_ENTRY_BCI) { |
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218 graph = new StructuredGraph(method, entryBCI); |
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219 } else { |
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220 // Compiling method substitution - must clone the graph |
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221 graph = graph.copy(); |
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222 } |
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223 InlinedBytecodes.add(method.getCodeSize()); |
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224 CallingConvention cc = getCallingConvention(providers.getCodeCache(), Type.JavaCallee, graph.method(), false); |
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225 Suites suites = getSuites(providers); |
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226 ProfilingInfo profilingInfo = getProfilingInfo(); |
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227 OptimisticOptimizations optimisticOpts = getOptimisticOpts(profilingInfo); |
13585 | 228 result = compileGraph(graph, cc, method, providers, backend, backend.getTarget(), graphCache, getGraphBuilderSuite(providers), optimisticOpts, profilingInfo, |
229 method.getSpeculationLog(), suites, true, new CompilationResult(), CompilationResultBuilderFactory.Default); | |
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230 result.setId(getId()); |
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231 result.setEntryBCI(entryBCI); |
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232 } catch (Throwable e) { |
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233 throw Debug.handle(e); |
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234 } finally { |
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235 filter.remove(); |
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236 final boolean printAfterCompilation = PrintAfterCompilation.getValue() && !TTY.isSuppressed(); |
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237 if (printAfterCompilation) { |
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238 TTY.println(getMethodDescription() + String.format(" | %4dms %5dB", System.currentTimeMillis() - start, (result != null ? result.getTargetCodeSize() : -1))); |
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239 } else if (printCompilation) { |
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240 TTY.println(String.format("%-6d Graal %-70s %-45s %-50s | %4dms %5dB", id, "", "", "", System.currentTimeMillis() - start, (result != null ? result.getTargetCodeSize() : -1))); |
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241 } |
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242 } |
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243 |
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244 try (TimerCloseable b = CodeInstallationTime.start()) { |
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245 installedCode = installMethod(result); |
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246 } |
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247 stats.finish(method); |
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248 } catch (BailoutException bailout) { |
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249 Debug.metric("Bailouts").increment(); |
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250 if (ExitVMOnBailout.getValue()) { |
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251 TTY.cachedOut.println(MetaUtil.format("Bailout in %H.%n(%p)", method)); |
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252 bailout.printStackTrace(TTY.cachedOut); |
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253 System.exit(-1); |
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254 } else if (PrintBailout.getValue()) { |
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255 TTY.cachedOut.println(MetaUtil.format("Bailout in %H.%n(%p)", method)); |
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256 bailout.printStackTrace(TTY.cachedOut); |
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257 } |
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258 } catch (Throwable t) { |
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259 if (PrintStackTraceOnException.getValue() || ExitVMOnException.getValue()) { |
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260 t.printStackTrace(TTY.cachedOut); |
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261 } |
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262 if (ExitVMOnException.getValue()) { |
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263 System.exit(-1); |
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264 } |
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265 } finally { |
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266 if ((config.ciTime || config.ciTimeEach || PrintCompRate.getValue() != 0) && installedCode != null) { |
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267 long processedBytes = InlinedBytecodes.getCurrentValue() - previousInlinedBytecodes; |
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268 long time = CompilationTime.getCurrentValue() - previousCompilationTime; |
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269 TimeUnit timeUnit = CompilationTime.getTimeUnit(); |
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270 long timeUnitsPerSecond = timeUnit.convert(1, TimeUnit.SECONDS); |
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271 CompilerToVM c2vm = backend.getRuntime().getCompilerToVM(); |
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272 c2vm.notifyCompilationStatistics(id, method, entryBCI != INVOCATION_ENTRY_BCI, (int) processedBytes, time, timeUnitsPerSecond, installedCode); |
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273 } |
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274 |
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275 if (clearFromCompilationQueue) { |
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276 assert method.isQueuedForCompilation(); |
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277 method.clearQueuedForCompilation(); |
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278 } |
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279 } |
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280 } |
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281 |
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282 private String getMethodDescription() { |
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283 return String.format("%-6d Graal %-70s %-45s %-50s %s", id, method.getDeclaringClass().getName(), method.getName(), method.getSignature().getMethodDescriptor(), |
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284 entryBCI == StructuredGraph.INVOCATION_ENTRY_BCI ? "" : "(OSR@" + entryBCI + ") "); |
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285 } |
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286 |
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287 /** |
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288 * Print a HotSpot-style compilation message to the console. |
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289 */ |
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290 private void printCompilation() { |
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291 final boolean isOSR = entryBCI != StructuredGraph.INVOCATION_ENTRY_BCI; |
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292 final int mod = method.getModifiers(); |
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293 TTY.println(String.format("%7d %4d %c%c%c%c%c %s %s(%d bytes)", 0, id, isOSR ? '%' : ' ', Modifier.isSynchronized(mod) ? 's' : ' ', ' ', ' ', Modifier.isNative(mod) ? 'n' : ' ', |
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294 MetaUtil.format("%H::%n(%p)", method), isOSR ? "@ " + entryBCI + " " : "", method.getCodeSize())); |
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295 } |
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296 |
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297 private HotSpotInstalledCode installMethod(final CompilationResult compResult) { |
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298 final HotSpotCodeCacheProvider codeCache = backend.getProviders().getCodeCache(); |
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299 HotSpotInstalledCode installedCode = null; |
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300 try (Scope s = Debug.scope("CodeInstall", new DebugDumpScope(String.valueOf(id), true), codeCache, method)) { |
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301 installedCode = codeCache.installMethod(method, compResult); |
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302 } catch (Throwable e) { |
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303 throw Debug.handle(e); |
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304 } |
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305 return installedCode; |
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306 } |
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307 |
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308 private boolean tryToChangeStatus(CompilationStatus from, CompilationStatus to) { |
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309 return status.compareAndSet(from, to); |
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310 } |
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311 |
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312 @Override |
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313 public String toString() { |
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314 return "Compilation[id=" + id + ", " + MetaUtil.format("%H.%n(%p)", method) + (entryBCI == StructuredGraph.INVOCATION_ENTRY_BCI ? "" : "@" + entryBCI) + "]"; |
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315 } |
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316 } |