Mercurial > hg > graal-jvmci-8
annotate graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/OptimizedCallTarget.java @ 10886:1b800f44ac0c
Make HotSpotNmethod class final and set it as declared type of OptimizedCallTarget.compiledMethod.
author | Andreas Woess <andreas.woess@jku.at> |
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date | Fri, 26 Jul 2013 16:53:34 +0200 |
parents | 4ead4f35b91f |
children | 2bd626188d31 |
rev | line source |
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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.truffle.TruffleCompilerOptions.*; |
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26 |
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27 import java.io.*; |
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28 import java.util.*; |
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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.debug.*; |
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32 import com.oracle.graal.hotspot.meta.*; |
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33 import com.oracle.truffle.api.*; |
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34 import com.oracle.truffle.api.frame.*; |
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35 import com.oracle.truffle.api.impl.*; |
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36 import com.oracle.truffle.api.nodes.*; |
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37 |
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38 /** |
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39 * Call target that is optimized by Graal upon surpassing a specific invocation threshold. |
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40 */ |
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41 public final class OptimizedCallTarget extends DefaultCallTarget implements FrameFactory, LoopCountReceiver, ReplaceObserver { |
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42 |
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43 private static final PrintStream OUT = TTY.out().out(); |
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44 private static final int MIN_INVOKES_AFTER_INLINING = 2; |
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45 |
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46 protected OptimizedCallTarget(RootNode rootNode, FrameDescriptor descriptor, TruffleCompiler compiler, int compilationThreshold) { |
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47 super(rootNode, descriptor); |
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48 this.compiler = compiler; |
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49 this.invokeCounter = compilationThreshold >> 7; |
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50 this.loopAndInvokeCounter = compilationThreshold; |
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51 this.originalInvokeCounter = compilationThreshold; |
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52 this.rootNode.setCallTarget(this); |
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53 |
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54 if (TruffleCallTargetProfiling.getValue()) { |
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55 registerCallTarget(this); |
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56 } |
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57 } |
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58 |
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59 private HotSpotNmethod compiledMethod; |
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60 private final TruffleCompiler compiler; |
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61 |
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62 private int invokeCounter; |
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63 private int originalInvokeCounter; |
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64 private int loopAndInvokeCounter; |
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65 private boolean disableCompilation; |
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66 |
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67 private int callCount; |
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68 private int invalidationCount; |
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69 private int replaceCount; |
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70 long timeCompilationStarted; |
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71 long timePartialEvaluationFinished; |
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72 long timeCompilationFinished; |
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73 int codeSize; |
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74 int nodeCountPartialEval; |
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75 int nodeCountLowered; |
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76 |
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77 @Override |
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78 public Object call(PackedFrame caller, Arguments args) { |
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79 if (TruffleCallTargetProfiling.getValue()) { |
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80 callCount++; |
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81 } |
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82 if (CompilerDirectives.injectBranchProbability(CompilerDirectives.FASTPATH_PROBABILITY, compiledMethod != null)) { |
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83 try { |
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84 return compiledMethod.execute(this, caller, args); |
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85 } catch (InvalidInstalledCodeException ex) { |
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86 return compiledCodeInvalidated(caller, args); |
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87 } |
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88 } else { |
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89 return interpreterCall(caller, args); |
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90 } |
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91 } |
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92 |
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93 private Object compiledCodeInvalidated(PackedFrame caller, Arguments args) { |
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94 CompilerAsserts.neverPartOfCompilation(); |
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95 compiledMethod = null; |
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96 int invalidationReprofileCount = TruffleInvalidationReprofileCount.getValue(); |
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97 invokeCounter = invalidationReprofileCount; |
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98 invalidationCount++; |
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99 if (TruffleFunctionInlining.getValue()) { |
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100 originalInvokeCounter += invalidationReprofileCount; |
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101 } |
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102 if (TraceTruffleCompilation.getValue()) { |
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103 OUT.printf("[truffle] invalidated %-48s |Alive %5.0fms |Inv# %d |Replace# %d\n", rootNode, (System.nanoTime() - timeCompilationFinished) / 1e6, |
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104 invalidationCount, replaceCount); |
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105 } |
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106 return call(caller, args); |
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107 } |
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108 |
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109 private Object interpreterCall(PackedFrame caller, Arguments args) { |
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110 CompilerAsserts.neverPartOfCompilation(); |
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111 invokeCounter--; |
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112 loopAndInvokeCounter--; |
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113 if (disableCompilation || loopAndInvokeCounter > 0 || invokeCounter > 0) { |
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114 return executeHelper(caller, args); |
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115 } else { |
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116 compileOrInline(); |
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117 return call(caller, args); |
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118 } |
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119 } |
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120 |
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121 private void compileOrInline() { |
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122 if (TruffleFunctionInlining.getValue() && inline()) { |
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123 invokeCounter = MIN_INVOKES_AFTER_INLINING; |
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124 int inliningReprofileCount = TruffleInliningReprofileCount.getValue(); |
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125 loopAndInvokeCounter = inliningReprofileCount; |
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126 originalInvokeCounter = inliningReprofileCount; |
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127 } else { |
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128 compile(); |
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129 } |
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130 } |
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131 |
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132 public boolean inline() { |
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133 CompilerAsserts.neverPartOfCompilation(); |
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134 return new InliningHelper(this).inline(); |
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135 } |
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136 |
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137 public void compile() { |
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138 CompilerAsserts.neverPartOfCompilation(); |
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139 try { |
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140 compiledMethod = (HotSpotNmethod) compiler.compile(this); |
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141 if (compiledMethod == null) { |
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142 throw new BailoutException(String.format("code installation failed (codeSize=%s)", codeSize)); |
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143 } else { |
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144 if (TraceTruffleCompilation.getValue()) { |
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145 int nodeCountTruffle = NodeUtil.countNodes(rootNode); |
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146 OUT.printf("[truffle] optimized %-50s |Nodes %7d |Time %5.0f(%4.0f+%-4.0f)ms |Nodes %5d/%5d |CodeSize %d\n", rootNode, nodeCountTruffle, |
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147 (timeCompilationFinished - timeCompilationStarted) / 1e6, (timePartialEvaluationFinished - timeCompilationStarted) / 1e6, |
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148 (timeCompilationFinished - timePartialEvaluationFinished) / 1e6, nodeCountPartialEval, nodeCountLowered, codeSize); |
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149 } |
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150 if (TruffleCallTargetProfiling.getValue()) { |
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151 resetProfiling(); |
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152 } |
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153 } |
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154 } catch (Throwable e) { |
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155 disableCompilation = true; |
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156 if (TraceTruffleCompilation.getValue()) { |
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157 if (e instanceof BailoutException) { |
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158 OUT.printf("[truffle] opt bailout %-48s %s\n", rootNode, e.getMessage()); |
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159 } else { |
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160 OUT.printf("[truffle] opt failed %-49s %s\n", rootNode, e.toString()); |
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161 if (TraceTruffleCompilationExceptions.getValue()) { |
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162 e.printStackTrace(OUT); |
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163 } |
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164 if (TruffleCompilationExceptionsAreFatal.getValue()) { |
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165 System.exit(-1); |
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166 } |
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167 } |
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168 } |
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169 } |
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170 } |
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171 |
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172 public Object executeHelper(PackedFrame caller, Arguments args) { |
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173 VirtualFrame frame = createFrame(frameDescriptor, caller, args); |
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174 return rootNode.execute(frame); |
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175 } |
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176 |
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177 private static FrameWithoutBoxing createFrame(FrameDescriptor descriptor, PackedFrame caller, Arguments args) { |
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178 return new FrameWithoutBoxing(descriptor, caller, args); |
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179 } |
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180 |
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181 @Override |
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182 public VirtualFrame create(FrameDescriptor descriptor, PackedFrame caller, Arguments args) { |
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183 return createFrame(descriptor, caller, args); |
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184 } |
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185 |
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186 @Override |
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187 public void reportLoopCount(int count) { |
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188 loopAndInvokeCounter -= count; |
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189 } |
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190 |
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191 @Override |
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192 public void nodeReplaced() { |
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193 replaceCount++; |
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194 |
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195 // delay compilation until tree is deemed stable enough |
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196 int replaceBackoff = TruffleReplaceReprofileCount.getValue(); |
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197 if (loopAndInvokeCounter < replaceBackoff) { |
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198 loopAndInvokeCounter = replaceBackoff; |
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199 } |
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200 } |
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201 |
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202 private static class InliningHelper { |
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203 |
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204 private final OptimizedCallTarget target; |
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205 |
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206 public InliningHelper(OptimizedCallTarget target) { |
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207 this.target = target; |
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208 } |
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209 |
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210 public boolean inline() { |
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211 final InliningPolicy policy = new InliningPolicy(target); |
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212 if (!policy.continueInlining()) { |
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213 if (TraceTruffleInliningDetails.getValue()) { |
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214 List<InlinableCallSiteInfo> inlinableCallSites = getInlinableCallSites(target); |
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215 if (!inlinableCallSites.isEmpty()) { |
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216 OUT.printf("[truffle] inlining hit caller size limit (%3d >= %3d).%3d remaining call sites in %s:\n", policy.callerNodeCount, TruffleInliningMaxCallerSize.getValue(), |
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217 inlinableCallSites.size(), target.getRootNode()); |
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218 policy.sortByRelevance(inlinableCallSites); |
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219 printCallSiteInfo(policy, inlinableCallSites, ""); |
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220 } |
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221 } |
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222 return false; |
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223 } |
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224 |
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225 List<InlinableCallSiteInfo> inlinableCallSites = getInlinableCallSites(target); |
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226 if (inlinableCallSites.isEmpty()) { |
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227 return false; |
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228 } |
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229 |
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230 policy.sortByRelevance(inlinableCallSites); |
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231 |
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232 boolean inlined = false; |
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233 for (InlinableCallSiteInfo inlinableCallSite : inlinableCallSites) { |
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234 if (!policy.isWorthInlining(inlinableCallSite)) { |
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235 break; |
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236 } |
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237 if (inlinableCallSite.getCallSite().inline(target)) { |
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238 if (TraceTruffleInlining.getValue()) { |
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239 printCallSiteInfo(policy, inlinableCallSite, "inlined"); |
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240 } |
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241 inlined = true; |
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242 break; |
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243 } |
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244 } |
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245 |
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246 if (inlined) { |
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247 for (InlinableCallSiteInfo callSite : inlinableCallSites) { |
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248 callSite.getCallSite().resetCallCount(); |
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249 } |
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250 } else { |
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251 if (TraceTruffleInliningDetails.getValue()) { |
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252 OUT.printf("[truffle] inlining stopped.%3d remaining call sites in %s:\n", inlinableCallSites.size(), target.getRootNode()); |
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253 printCallSiteInfo(policy, inlinableCallSites, ""); |
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254 } |
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255 } |
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256 |
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257 return inlined; |
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258 } |
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259 |
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260 private static void printCallSiteInfo(InliningPolicy policy, List<InlinableCallSiteInfo> inlinableCallSites, String msg) { |
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261 for (InlinableCallSiteInfo candidate : inlinableCallSites) { |
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262 printCallSiteInfo(policy, candidate, msg); |
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263 } |
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264 } |
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265 |
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266 private static void printCallSiteInfo(InliningPolicy policy, InlinableCallSiteInfo callSite, String msg) { |
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267 String calls = String.format("%4s/%4s", callSite.getCallCount(), policy.callerInvocationCount); |
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268 String nodes = String.format("%3s/%3s", callSite.getInlineNodeCount(), policy.callerNodeCount); |
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269 OUT.printf("[truffle] %-9s %-50s |Nodes %6s |Calls %6s %7.3f |%s\n", msg, callSite.getCallSite(), nodes, calls, policy.metric(callSite), callSite.getCallSite().getCallTarget()); |
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270 } |
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271 |
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272 private static final class InliningPolicy { |
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273 |
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274 private final int callerNodeCount; |
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275 private final int callerInvocationCount; |
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276 |
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277 public InliningPolicy(OptimizedCallTarget caller) { |
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278 this.callerNodeCount = NodeUtil.countNodes(caller.getRootNode()); |
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279 this.callerInvocationCount = caller.originalInvokeCounter; |
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280 } |
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281 |
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282 public boolean continueInlining() { |
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283 return callerNodeCount < TruffleInliningMaxCallerSize.getValue(); |
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284 } |
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285 |
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286 public boolean isWorthInlining(InlinableCallSiteInfo callSite) { |
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287 return callSite.getInlineNodeCount() <= TruffleInliningMaxCalleeSize.getValue() && callSite.getInlineNodeCount() + callerNodeCount <= TruffleInliningMaxCallerSize.getValue() && |
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288 callSite.getCallCount() > 0 && callSite.getRecursiveDepth() < TruffleInliningMaxRecursiveDepth.getValue() && |
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289 (frequency(callSite) >= TruffleInliningMinFrequency.getValue() || callSite.getInlineNodeCount() <= TruffleInliningTrivialSize.getValue()); |
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290 } |
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291 |
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292 public double metric(InlinableCallSiteInfo callSite) { |
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293 double cost = callSite.getInlineNodeCount(); |
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294 double metric = frequency(callSite) / cost; |
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295 return metric; |
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296 } |
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297 |
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298 private double frequency(InlinableCallSiteInfo callSite) { |
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299 return (double) callSite.getCallCount() / (double) callerInvocationCount; |
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300 } |
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301 |
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302 public void sortByRelevance(List<InlinableCallSiteInfo> inlinableCallSites) { |
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303 Collections.sort(inlinableCallSites, new Comparator<InlinableCallSiteInfo>() { |
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304 |
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305 @Override |
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306 public int compare(InlinableCallSiteInfo cs1, InlinableCallSiteInfo cs2) { |
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307 int result = (isWorthInlining(cs2) ? 1 : 0) - (isWorthInlining(cs1) ? 1 : 0); |
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308 if (result == 0) { |
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309 return Double.compare(metric(cs2), metric(cs1)); |
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310 } |
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311 return result; |
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312 } |
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313 }); |
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314 } |
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315 } |
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316 |
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317 private static final class InlinableCallSiteInfo { |
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318 |
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319 private final InlinableCallSite callSite; |
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320 private final int callCount; |
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321 private final int nodeCount; |
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322 private final int recursiveDepth; |
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323 |
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324 public InlinableCallSiteInfo(InlinableCallSite callSite) { |
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325 this.callSite = callSite; |
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326 this.callCount = callSite.getCallCount(); |
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327 this.nodeCount = NodeUtil.countNodes(callSite.getInlineTree()); |
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328 this.recursiveDepth = calculateRecursiveDepth(); |
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329 } |
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330 |
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331 public int getRecursiveDepth() { |
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332 return recursiveDepth; |
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333 } |
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334 |
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335 private int calculateRecursiveDepth() { |
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336 int depth = 0; |
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337 Node parent = ((Node) callSite).getParent(); |
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338 while (!(parent instanceof RootNode)) { |
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339 assert parent != null; |
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340 if (parent instanceof InlinedCallSite && ((InlinedCallSite) parent).getCallTarget() == callSite.getCallTarget()) { |
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341 depth++; |
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342 } |
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343 parent = parent.getParent(); |
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344 } |
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345 if (((RootNode) parent).getCallTarget() == callSite.getCallTarget()) { |
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346 depth++; |
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347 } |
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348 return depth; |
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349 } |
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350 |
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351 public InlinableCallSite getCallSite() { |
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352 return callSite; |
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353 } |
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354 |
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355 public int getCallCount() { |
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356 return callCount; |
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357 } |
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358 |
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359 public int getInlineNodeCount() { |
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360 return nodeCount; |
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361 } |
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362 } |
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363 |
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364 private static List<InlinableCallSiteInfo> getInlinableCallSites(final DefaultCallTarget target) { |
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365 final ArrayList<InlinableCallSiteInfo> inlinableCallSites = new ArrayList<>(); |
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366 target.getRootNode().accept(new NodeVisitor() { |
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367 |
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368 @Override |
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369 public boolean visit(Node node) { |
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370 if (node instanceof InlinableCallSite) { |
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371 inlinableCallSites.add(new InlinableCallSiteInfo((InlinableCallSite) node)); |
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372 } |
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373 return true; |
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374 } |
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375 }); |
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376 return inlinableCallSites; |
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377 } |
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378 } |
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379 |
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380 private static void resetProfiling() { |
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381 for (OptimizedCallTarget callTarget : OptimizedCallTarget.callTargets.keySet()) { |
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382 callTarget.callCount = 0; |
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383 } |
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384 } |
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385 |
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386 private static void printProfiling() { |
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387 List<OptimizedCallTarget> sortedCallTargets = new ArrayList<>(OptimizedCallTarget.callTargets.keySet()); |
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388 Collections.sort(sortedCallTargets, new Comparator<OptimizedCallTarget>() { |
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389 |
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390 @Override |
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391 public int compare(OptimizedCallTarget o1, OptimizedCallTarget o2) { |
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392 return o2.callCount - o1.callCount; |
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393 } |
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394 }); |
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395 |
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396 int totalCallCount = 0; |
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397 int totalInlinedCallSiteCount = 0; |
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398 int totalNotInlinedCallSiteCount = 0; |
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399 int totalNodeCount = 0; |
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400 int totalInvalidationCount = 0; |
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401 |
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402 OUT.println(); |
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403 OUT.printf("%-50s | %-10s | %s / %s | %s | %s\n", "Call Target", "Call Count", "Calls Sites Inlined", "Not Inlined", "Node Count", "Inv"); |
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404 for (OptimizedCallTarget callTarget : sortedCallTargets) { |
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405 if (callTarget.callCount == 0) { |
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406 continue; |
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407 } |
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408 |
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409 int notInlinedCallSiteCount = InliningHelper.getInlinableCallSites(callTarget).size(); |
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410 int nodeCount = NodeUtil.countNodes(callTarget.rootNode); |
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411 int inlinedCallSiteCount = NodeUtil.countNodes(callTarget.rootNode, InlinedCallSite.class); |
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412 String comment = callTarget.compiledMethod == null ? " int" : ""; |
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413 comment += callTarget.disableCompilation ? " fail" : ""; |
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414 OUT.printf("%-50s | %10d | %15d | %15d | %10d | %3d%s\n", callTarget.getRootNode(), callTarget.callCount, inlinedCallSiteCount, notInlinedCallSiteCount, nodeCount, |
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415 callTarget.invalidationCount, comment); |
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416 |
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417 totalCallCount += callTarget.callCount; |
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418 totalInlinedCallSiteCount += inlinedCallSiteCount; |
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419 totalNotInlinedCallSiteCount += notInlinedCallSiteCount; |
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420 totalNodeCount += nodeCount; |
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421 totalInvalidationCount += callTarget.invalidationCount; |
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422 } |
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423 OUT.printf("%-50s | %10d | %15d | %15d | %10d | %3d\n", "Total", totalCallCount, totalInlinedCallSiteCount, totalNotInlinedCallSiteCount, totalNodeCount, totalInvalidationCount); |
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424 } |
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425 |
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426 private static void registerCallTarget(OptimizedCallTarget callTarget) { |
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427 callTargets.put(callTarget, 0); |
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428 } |
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429 |
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430 private static Map<OptimizedCallTarget, Integer> callTargets; |
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431 static { |
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432 if (TruffleCallTargetProfiling.getValue()) { |
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433 callTargets = new WeakHashMap<>(); |
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434 |
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435 Runtime.getRuntime().addShutdownHook(new Thread() { |
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436 |
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437 @Override |
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438 public void run() { |
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439 printProfiling(); |
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440 } |
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441 }); |
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442 } |
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443 } |
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0097fb11c16f
Add basic version of Graal's Truffle runtime.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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