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annotate graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/OptimizedCallTarget.java @ 13760:a12017c18d5d

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Truffle API cleanup: Reduce the visibility of classes and constructors that are not intended to be instantiated by guest language implementations; provide abstract class RootCallTarget as a CallTarget to a RootNode
author Christian Wimmer <christian.wimmer@oracle.com>
date Fri, 24 Jan 2014 18:13:38 -0800
parents 4281521dc39a
children dbd670294770
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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 import java.util.concurrent.*;
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30
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31 import com.oracle.graal.api.code.*;
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32 import com.oracle.graal.debug.*;
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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
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45 private InstalledCode installedCode;
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46 private Future<InstalledCode> installedCodeTask;
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47 private final TruffleCompiler compiler;
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48 private final CompilationProfile compilationProfile;
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49 private final CompilationPolicy compilationPolicy;
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50 private final TruffleInlining inlining;
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51 private boolean compilationEnabled;
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52 private int callCount;
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53
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54 protected OptimizedCallTarget(RootNode rootNode, TruffleCompiler compiler, int invokeCounter, int compilationThreshold) {
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55 super(rootNode);
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56 this.compiler = compiler;
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57 this.compilationProfile = new CompilationProfile(compilationThreshold, invokeCounter, rootNode.toString());
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58 this.getRootNode().setCallTarget(this);
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59
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60 if (TruffleUseTimeForCompilationDecision.getValue()) {
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61 compilationPolicy = new TimedCompilationPolicy();
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62 } else {
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63 compilationPolicy = new DefaultCompilationPolicy();
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64 }
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65 this.compilationEnabled = true;
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66
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67 if (TruffleCallTargetProfiling.getValue()) {
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68 registerCallTarget(this);
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69 }
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70 this.inlining = new TruffleInliningImpl();
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71
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72 }
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73
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74 @CompilerDirectives.SlowPath
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75 @Override
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76 public Object call(PackedFrame caller, Arguments args) {
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77 return callHelper(caller, args);
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78 }
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79
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80 private Object callHelper(PackedFrame caller, Arguments args) {
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81 if (installedCode != null && installedCode.isValid()) {
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82 TruffleRuntime runtime = Truffle.getRuntime();
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83 if (runtime instanceof GraalTruffleRuntime) {
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84 if (TraceTruffleCompilation.getValue()) {
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85 OUT.println("[truffle] reinstall OptimizedCallTarget.call code with frame prolog shortcut.");
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86 }
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87 GraalTruffleRuntime.installOptimizedCallTargetCallMethod();
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88 }
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89 }
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90 if (TruffleCallTargetProfiling.getValue()) {
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91 callCount++;
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92 }
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93 if (CompilerDirectives.injectBranchProbability(CompilerDirectives.FASTPATH_PROBABILITY, installedCode != null)) {
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94 try {
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95 return installedCode.execute(this, caller, args);
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96 } catch (InvalidInstalledCodeException ex) {
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97 return compiledCodeInvalidated(caller, args);
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98 }
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99 } else {
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100 return interpreterCall(caller, args);
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101 }
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102 }
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103
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104 public CompilationProfile getCompilationProfile() {
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105 return compilationProfile;
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106 }
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107
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108 private Object compiledCodeInvalidated(PackedFrame caller, Arguments args) {
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109 invalidate();
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110 return call(caller, args);
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111 }
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112
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113 private void invalidate() {
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114 InstalledCode m = this.installedCode;
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115 if (m != null) {
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116 CompilerAsserts.neverPartOfCompilation();
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117 installedCode = null;
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118 compilationProfile.reportInvalidated();
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119 if (TraceTruffleCompilation.getValue()) {
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120 OUT.printf("[truffle] invalidated %-48s |Inv# %d |Replace# %d\n", getRootNode(), compilationProfile.getInvalidationCount(),
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121 compilationProfile.getNodeReplaceCount());
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122 }
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123 }
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124
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125 Future<InstalledCode> task = this.installedCodeTask;
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126 if (task != null) {
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127 task.cancel(true);
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128 this.installedCodeTask = null;
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129 compilationProfile.reportInvalidated();
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130 }
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131 }
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132
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133 private Object interpreterCall(PackedFrame caller, Arguments args) {
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134 CompilerAsserts.neverPartOfCompilation();
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135 compilationProfile.reportInterpreterCall();
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136 if (compilationEnabled && shouldCompile()) {
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137 if (isCompiling()) {
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138 return waitForCompilation(caller, args);
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139 }
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140 boolean inlined = shouldInline() && inline();
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141 if (!inlined) {
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142 compile();
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143 }
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144 }
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145 return executeHelper(caller, args);
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146 }
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147
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148 private boolean shouldCompile() {
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149 return compilationPolicy.shouldCompile(compilationProfile);
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150 }
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151
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152 private static boolean shouldInline() {
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153 return TruffleFunctionInlining.getValue();
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154 }
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155
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156 private boolean isCompiling() {
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157 if (installedCodeTask != null) {
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158 if (installedCodeTask.isCancelled()) {
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159 installedCodeTask = null;
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160 return false;
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161 }
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162 return true;
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163 }
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164 return false;
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165 }
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166
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167 public void compile() {
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168 this.installedCodeTask = compiler.compile(this);
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diff changeset
169 if (!TruffleBackgroundCompilation.getValue()) {
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diff changeset
170 installedCode = receiveInstalledCode();
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171 }
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172 }
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diff changeset
173
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174 private Object waitForCompilation(PackedFrame caller, Arguments args) {
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diff changeset
175 if (installedCodeTask.isDone()) {
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diff changeset
176 installedCode = receiveInstalledCode();
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diff changeset
177 }
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178 return executeHelper(caller, args);
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179 }
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180
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diff changeset
181 private InstalledCode receiveInstalledCode() {
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diff changeset
182 try {
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diff changeset
183 return installedCodeTask.get();
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184 } catch (InterruptedException | ExecutionException e) {
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diff changeset
185 compilationEnabled = false;
13760
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diff changeset
186 OUT.printf("[truffle] opt failed %-48s %s\n", getRootNode(), e.getMessage());
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diff changeset
187 if (e.getCause() instanceof BailoutException) {
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diff changeset
188 // Bailout => move on.
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diff changeset
189 } else {
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diff changeset
190 if (TraceTruffleCompilationExceptions.getValue()) {
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diff changeset
191 e.printStackTrace(OUT);
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diff changeset
192 }
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diff changeset
193 if (TruffleCompilationExceptionsAreFatal.getValue()) {
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diff changeset
194 System.exit(-1);
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diff changeset
195 }
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196 }
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diff changeset
197 return null;
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diff changeset
198 }
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diff changeset
199 }
42c8f76a98bf Move Truffle compilations to background compilation thread.
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diff changeset
200
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diff changeset
201 /**
60142b15ed42 Truffle: fixed bug where invocation counter was decremented twice after inlining; cleanup of optimized call target and profile.
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diff changeset
202 * Forces inlining whether or not function inlining is enabled.
60142b15ed42 Truffle: fixed bug where invocation counter was decremented twice after inlining; cleanup of optimized call target and profile.
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diff changeset
203 *
60142b15ed42 Truffle: fixed bug where invocation counter was decremented twice after inlining; cleanup of optimized call target and profile.
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diff changeset
204 * @return true if an inlining was performed
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diff changeset
205 */
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diff changeset
206 public boolean inline() {
12710
60142b15ed42 Truffle: fixed bug where invocation counter was decremented twice after inlining; cleanup of optimized call target and profile.
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diff changeset
207 boolean result = inlining.performInlining(this);
60142b15ed42 Truffle: fixed bug where invocation counter was decremented twice after inlining; cleanup of optimized call target and profile.
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diff changeset
208 if (result) {
13703
03b42f0fb635 Truffle: extend inlining interface with custom reprofile counters.
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parents: 13208
diff changeset
209 compilationProfile.reportInliningPerformed(inlining);
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diff changeset
210 }
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diff changeset
211 return result;
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diff changeset
212 }
0097fb11c16f Add basic version of Graal's Truffle runtime.
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parents:
diff changeset
213
0097fb11c16f Add basic version of Graal's Truffle runtime.
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parents:
diff changeset
214 public Object executeHelper(PackedFrame caller, Arguments args) {
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a12017c18d5d Truffle API cleanup: Reduce the visibility of classes and constructors that are not intended to be instantiated by guest language implementations; provide abstract class RootCallTarget as a CallTarget to a RootNode
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diff changeset
215 VirtualFrame frame = createFrame(getRootNode().getFrameDescriptor(), caller, args);
a12017c18d5d Truffle API cleanup: Reduce the visibility of classes and constructors that are not intended to be instantiated by guest language implementations; provide abstract class RootCallTarget as a CallTarget to a RootNode
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diff changeset
216 return getRootNode().execute(frame);
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diff changeset
217 }
0097fb11c16f Add basic version of Graal's Truffle runtime.
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parents:
diff changeset
218
11934
dca16d6f9d65 TruffleRuntime.createVirtualFrame.
Chris Seaton <chris.seaton@oracle.com>
parents: 11722
diff changeset
219 protected static FrameWithoutBoxing createFrame(FrameDescriptor descriptor, PackedFrame caller, Arguments args) {
10484
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diff changeset
220 return new FrameWithoutBoxing(descriptor, caller, args);
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parents:
diff changeset
221 }
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parents:
diff changeset
222
0097fb11c16f Add basic version of Graal's Truffle runtime.
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parents:
diff changeset
223 @Override
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parents:
diff changeset
224 public VirtualFrame create(FrameDescriptor descriptor, PackedFrame caller, Arguments args) {
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diff changeset
225 return createFrame(descriptor, caller, args);
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diff changeset
226 }
0097fb11c16f Add basic version of Graal's Truffle runtime.
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parents:
diff changeset
227
0097fb11c16f Add basic version of Graal's Truffle runtime.
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diff changeset
228 @Override
0097fb11c16f Add basic version of Graal's Truffle runtime.
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diff changeset
229 public void reportLoopCount(int count) {
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d2d0c44662bb Truffle: refactored CompilationProfile to separate the profile and the policy in separate classes.
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diff changeset
230 compilationProfile.reportLoopCount(count);
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diff changeset
231 }
0097fb11c16f Add basic version of Graal's Truffle runtime.
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parents:
diff changeset
232
10862
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diff changeset
233 @Override
8c570011b86f Truffle: when a node is replaced, notify optimized call target and delay compilation.
Andreas Woess <andreas.woess@jku.at>
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diff changeset
234 public void nodeReplaced() {
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diff changeset
235 compilationProfile.reportNodeReplaced();
12591
33fe56e68abd Simplifications of OptimizedCallTarget.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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diff changeset
236 invalidate();
10484
0097fb11c16f Add basic version of Graal's Truffle runtime.
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diff changeset
237 }
10752
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diff changeset
238
e2f5ae9afdc5 Truffle: introduce profiling option
Andreas Woess <andreas.woess@jku.at>
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diff changeset
239 private static void printProfiling() {
e2f5ae9afdc5 Truffle: introduce profiling option
Andreas Woess <andreas.woess@jku.at>
parents: 10751
diff changeset
240 List<OptimizedCallTarget> sortedCallTargets = new ArrayList<>(OptimizedCallTarget.callTargets.keySet());
e2f5ae9afdc5 Truffle: introduce profiling option
Andreas Woess <andreas.woess@jku.at>
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diff changeset
241 Collections.sort(sortedCallTargets, new Comparator<OptimizedCallTarget>() {
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diff changeset
242
e2f5ae9afdc5 Truffle: introduce profiling option
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diff changeset
243 @Override
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diff changeset
244 public int compare(OptimizedCallTarget o1, OptimizedCallTarget o2) {
e2f5ae9afdc5 Truffle: introduce profiling option
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diff changeset
245 return o2.callCount - o1.callCount;
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diff changeset
246 }
e2f5ae9afdc5 Truffle: introduce profiling option
Andreas Woess <andreas.woess@jku.at>
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diff changeset
247 });
e2f5ae9afdc5 Truffle: introduce profiling option
Andreas Woess <andreas.woess@jku.at>
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diff changeset
248
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249 int totalCallCount = 0;
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250 int totalInlinedCallSiteCount = 0;
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251 int totalNotInlinedCallSiteCount = 0;
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252 int totalNodeCount = 0;
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f2008a93ad54 Truffle: add invalidation count to call target profiling / trace compilation.
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253 int totalInvalidationCount = 0;
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254
10794
3fe325c3f31c Truffle: add InlinedCallSite interface and an InlinableCallSite method to query the inlined call target
Andreas Woess <andreas.woess@jku.at>
parents: 10752
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255 OUT.println();
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256 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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257 for (OptimizedCallTarget callTarget : sortedCallTargets) {
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258 if (callTarget.callCount == 0) {
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259 continue;
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260 }
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261
12708
85bab2227295 Truffle: refactored inlining to a new class.
Christian Humer <christian.humer@gmail.com>
parents: 12601
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262 int notInlinedCallSiteCount = TruffleInliningImpl.getInlinableCallSites(callTarget).size();
13760
a12017c18d5d Truffle API cleanup: Reduce the visibility of classes and constructors that are not intended to be instantiated by guest language implementations; provide abstract class RootCallTarget as a CallTarget to a RootNode
Christian Wimmer <christian.wimmer@oracle.com>
parents: 13720
diff changeset
263 int nodeCount = NodeUtil.countNodes(callTarget.getRootNode());
a12017c18d5d Truffle API cleanup: Reduce the visibility of classes and constructors that are not intended to be instantiated by guest language implementations; provide abstract class RootCallTarget as a CallTarget to a RootNode
Christian Wimmer <christian.wimmer@oracle.com>
parents: 13720
diff changeset
264 int inlinedCallSiteCount = NodeUtil.countNodes(callTarget.getRootNode(), InlinedCallSite.class);
12591
33fe56e68abd Simplifications of OptimizedCallTarget.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 12405
diff changeset
265 String comment = callTarget.installedCode == null ? " int" : "";
12710
60142b15ed42 Truffle: fixed bug where invocation counter was decremented twice after inlining; cleanup of optimized call target and profile.
Christian Humer <christian.humer@gmail.com>
parents: 12709
diff changeset
266 comment += callTarget.compilationEnabled ? "" : " fail";
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267 OUT.printf("%-50s | %10d | %15d | %15d | %10d | %3d%s\n", callTarget.getRootNode(), callTarget.callCount, inlinedCallSiteCount, notInlinedCallSiteCount, nodeCount,
12709
d2d0c44662bb Truffle: refactored CompilationProfile to separate the profile and the policy in separate classes.
Christian Humer <christian.humer@gmail.com>
parents: 12708
diff changeset
268 callTarget.getCompilationProfile().getInvalidationCount(), comment);
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269
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270 totalCallCount += callTarget.callCount;
10794
3fe325c3f31c Truffle: add InlinedCallSite interface and an InlinableCallSite method to query the inlined call target
Andreas Woess <andreas.woess@jku.at>
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271 totalInlinedCallSiteCount += inlinedCallSiteCount;
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272 totalNotInlinedCallSiteCount += notInlinedCallSiteCount;
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273 totalNodeCount += nodeCount;
12709
d2d0c44662bb Truffle: refactored CompilationProfile to separate the profile and the policy in separate classes.
Christian Humer <christian.humer@gmail.com>
parents: 12708
diff changeset
274 totalInvalidationCount += callTarget.getCompilationProfile().getInvalidationCount();
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275 }
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276 OUT.printf("%-50s | %10d | %15d | %15d | %10d | %3d\n", "Total", totalCallCount, totalInlinedCallSiteCount, totalNotInlinedCallSiteCount, totalNodeCount, totalInvalidationCount);
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277 }
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278
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279 private static void registerCallTarget(OptimizedCallTarget callTarget) {
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280 callTargets.put(callTarget, 0);
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281 }
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282
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283 private static Map<OptimizedCallTarget, Integer> callTargets;
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diff changeset
284 static {
10844
3cf5f371dc9f Truffle: print inlined call target and rename profiling option.
Andreas Woess <andreas.woess@jku.at>
parents: 10797
diff changeset
285 if (TruffleCallTargetProfiling.getValue()) {
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286 callTargets = new WeakHashMap<>();
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287
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288 Runtime.getRuntime().addShutdownHook(new Thread() {
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289
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290 @Override
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291 public void run() {
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292 printProfiling();
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293 }
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294 });
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295 }
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296 }
10484
0097fb11c16f Add basic version of Graal's Truffle runtime.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
297 }