Mercurial > hg > truffle
annotate test/compiler/whitebox/CompilerWhiteBoxTest.java @ 20708:d9e22e15d3f6
8066775: opto/node.hpp:355, assert(i < _max) failed: oob: i=1, _max=1
Summary: bad assumption on graph shape in CastIINode::Value if that part of the graph is becoming dead.
Reviewed-by: kvn
author | roland |
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date | Fri, 05 Dec 2014 18:03:15 +0100 |
parents | f5f752e74840 |
children | 7848fc12602b |
rev | line source |
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8051 | 1 /* |
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2 * Copyright (c) 2013, 2014, Oracle and/or its affiliates. All rights reserved. |
8051 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
20 * or visit www.oracle.com if you need additional information or have any | |
21 * questions. | |
22 */ | |
23 | |
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24 import com.sun.management.HotSpotDiagnosticMXBean; |
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25 import com.sun.management.VMOption; |
8051 | 26 import sun.hotspot.WhiteBox; |
17817 | 27 import sun.hotspot.code.NMethod; |
8051 | 28 import sun.management.ManagementFactoryHelper; |
29 | |
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30 import java.lang.reflect.Constructor; |
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31 import java.lang.reflect.Executable; |
8051 | 32 import java.lang.reflect.Method; |
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33 import java.util.Objects; |
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34 import java.util.concurrent.Callable; |
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35 import java.util.function.Function; |
8051 | 36 |
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37 /** |
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38 * Abstract class for WhiteBox testing of JIT. |
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39 * |
8051 | 40 * @author igor.ignatyev@oracle.com |
41 */ | |
42 public abstract class CompilerWhiteBoxTest { | |
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43 /** {@code CompLevel::CompLevel_none} -- Interpreter */ |
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44 protected static int COMP_LEVEL_NONE = 0; |
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45 /** {@code CompLevel::CompLevel_any}, {@code CompLevel::CompLevel_all} */ |
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46 protected static int COMP_LEVEL_ANY = -1; |
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47 /** {@code CompLevel::CompLevel_simple} -- C1 */ |
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48 protected static int COMP_LEVEL_SIMPLE = 1; |
12073 | 49 /** {@code CompLevel::CompLevel_limited_profile} -- C1, invocation & backedge counters */ |
50 protected static int COMP_LEVEL_LIMITED_PROFILE = 2; | |
51 /** {@code CompLevel::CompLevel_full_profile} -- C1, invocation & backedge counters + mdo */ | |
52 protected static int COMP_LEVEL_FULL_PROFILE = 3; | |
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53 /** {@code CompLevel::CompLevel_full_optimization} -- C2 or Shark */ |
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54 protected static int COMP_LEVEL_FULL_OPTIMIZATION = 4; |
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55 /** Maximal value for CompLevel */ |
12073 | 56 protected static int COMP_LEVEL_MAX = COMP_LEVEL_FULL_OPTIMIZATION; |
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57 |
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58 /** Instance of WhiteBox */ |
8051 | 59 protected static final WhiteBox WHITE_BOX = WhiteBox.getWhiteBox(); |
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60 /** Value of {@code -XX:CompileThreshold} */ |
8051 | 61 protected static final int COMPILE_THRESHOLD |
62 = Integer.parseInt(getVMOption("CompileThreshold", "10000")); | |
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63 /** Value of {@code -XX:BackgroundCompilation} */ |
8766 | 64 protected static final boolean BACKGROUND_COMPILATION |
65 = Boolean.valueOf(getVMOption("BackgroundCompilation", "true")); | |
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66 /** Value of {@code -XX:TieredCompilation} */ |
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67 protected static final boolean TIERED_COMPILATION |
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68 = Boolean.valueOf(getVMOption("TieredCompilation", "false")); |
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69 /** Value of {@code -XX:TieredStopAtLevel} */ |
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70 protected static final int TIERED_STOP_AT_LEVEL |
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71 = Integer.parseInt(getVMOption("TieredStopAtLevel", "0")); |
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72 /** Flag for verbose output, true if {@code -Dverbose} specified */ |
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73 protected static final boolean IS_VERBOSE |
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74 = System.getProperty("verbose") != null; |
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75 /** invocation count to trigger compilation */ |
12073 | 76 protected static final int THRESHOLD; |
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77 /** invocation count to trigger OSR compilation */ |
12073 | 78 protected static final long BACKEDGE_THRESHOLD; |
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79 /** Value of {@code java.vm.info} (interpreted|mixed|comp mode) */ |
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80 protected static final String MODE = System.getProperty("java.vm.info"); |
12073 | 81 |
82 static { | |
83 if (TIERED_COMPILATION) { | |
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84 BACKEDGE_THRESHOLD = THRESHOLD = 150000; |
12073 | 85 } else { |
86 THRESHOLD = COMPILE_THRESHOLD; | |
87 BACKEDGE_THRESHOLD = COMPILE_THRESHOLD * Long.parseLong(getVMOption( | |
88 "OnStackReplacePercentage")); | |
89 } | |
90 } | |
8051 | 91 |
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92 /** |
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93 * Returns value of VM option. |
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94 * |
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95 * @param name option's name |
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96 * @return value of option or {@code null}, if option doesn't exist |
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97 * @throws NullPointerException if name is null |
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98 */ |
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99 protected static String getVMOption(String name) { |
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100 Objects.requireNonNull(name); |
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101 HotSpotDiagnosticMXBean diagnostic |
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102 = ManagementFactoryHelper.getDiagnosticMXBean(); |
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103 VMOption tmp; |
8051 | 104 try { |
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105 tmp = diagnostic.getVMOption(name); |
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106 } catch (IllegalArgumentException e) { |
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107 tmp = null; |
8051 | 108 } |
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109 return (tmp == null ? null : tmp.getValue()); |
8051 | 110 } |
111 | |
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112 /** |
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113 * Returns value of VM option or default value. |
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114 * |
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115 * @param name option's name |
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116 * @param defaultValue default value |
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117 * @return value of option or {@code defaultValue}, if option doesn't exist |
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118 * @throws NullPointerException if name is null |
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119 * @see #getVMOption(String) |
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120 */ |
8766 | 121 protected static String getVMOption(String name, String defaultValue) { |
122 String result = getVMOption(name); | |
8051 | 123 return result == null ? defaultValue : result; |
124 } | |
125 | |
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126 /** copy of is_c1_compile(int) from utilities/globalDefinitions.hpp */ |
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127 protected static boolean isC1Compile(int compLevel) { |
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128 return (compLevel > COMP_LEVEL_NONE) |
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129 && (compLevel < COMP_LEVEL_FULL_OPTIMIZATION); |
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130 } |
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131 |
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132 /** copy of is_c2_compile(int) from utilities/globalDefinitions.hpp */ |
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133 protected static boolean isC2Compile(int compLevel) { |
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134 return compLevel == COMP_LEVEL_FULL_OPTIMIZATION; |
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135 } |
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136 |
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137 protected static void main( |
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138 Function<TestCase, CompilerWhiteBoxTest> constructor, |
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139 String[] args) { |
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140 if (args.length == 0) { |
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141 for (TestCase test : SimpleTestCase.values()) { |
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142 constructor.apply(test).runTest(); |
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143 } |
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144 } else { |
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145 for (String name : args) { |
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146 constructor.apply(SimpleTestCase.valueOf(name)).runTest(); |
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147 } |
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148 } |
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149 } |
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150 |
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151 /** tested method */ |
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152 protected final Executable method; |
12073 | 153 protected final TestCase testCase; |
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154 |
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155 /** |
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156 * Constructor. |
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157 * |
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158 * @param testCase object, that contains tested method and way to invoke it. |
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159 */ |
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160 protected CompilerWhiteBoxTest(TestCase testCase) { |
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161 Objects.requireNonNull(testCase); |
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162 System.out.println("TEST CASE:" + testCase.name()); |
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163 method = testCase.getExecutable(); |
12073 | 164 this.testCase = testCase; |
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165 } |
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166 |
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167 /** |
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168 * Template method for testing. Prints tested method's info before |
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169 * {@linkplain #test()} and after {@linkplain #test()} or on thrown |
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170 * exception. |
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171 * |
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172 * @throws RuntimeException if method {@linkplain #test()} throws any |
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173 * exception |
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174 * @see #test() |
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175 */ |
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176 protected final void runTest() { |
8051 | 177 if (ManagementFactoryHelper.getCompilationMXBean() == null) { |
178 System.err.println( | |
179 "Warning: test is not applicable in interpreted mode"); | |
180 return; | |
181 } | |
182 System.out.println("at test's start:"); | |
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183 printInfo(); |
8051 | 184 try { |
185 test(); | |
186 } catch (Exception e) { | |
187 System.out.printf("on exception '%s':", e.getMessage()); | |
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188 printInfo(); |
8766 | 189 e.printStackTrace(); |
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190 if (e instanceof RuntimeException) { |
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191 throw (RuntimeException) e; |
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192 } |
8051 | 193 throw new RuntimeException(e); |
194 } | |
195 System.out.println("at test's end:"); | |
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196 printInfo(); |
8051 | 197 } |
198 | |
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199 /** |
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200 * Checks, that {@linkplain #method} is not compiled at the given compilation |
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201 * level or above. |
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202 * |
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203 * @param compLevel |
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204 * |
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205 * @throws RuntimeException if {@linkplain #method} is in compiler queue or |
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206 * is compiled, or if {@linkplain #method} has zero |
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207 * compilation level. |
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208 */ |
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209 protected final void checkNotCompiled(int compLevel) { |
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210 if (WHITE_BOX.isMethodQueuedForCompilation(method)) { |
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211 throw new RuntimeException(method + " must not be in queue"); |
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212 } |
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213 if (WHITE_BOX.getMethodCompilationLevel(method, false) >= compLevel) { |
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214 throw new RuntimeException(method + " comp_level must be >= maxCompLevel"); |
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215 } |
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216 if (WHITE_BOX.getMethodCompilationLevel(method, true) >= compLevel) { |
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217 throw new RuntimeException(method + " osr_comp_level must be >= maxCompLevel"); |
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218 } |
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219 } |
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220 |
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221 /** |
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222 * Checks, that {@linkplain #method} is not compiled. |
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223 * |
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224 * @throws RuntimeException if {@linkplain #method} is in compiler queue or |
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225 * is compiled, or if {@linkplain #method} has zero |
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226 * compilation level. |
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227 */ |
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228 protected final void checkNotCompiled() { |
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229 checkNotCompiled(true); |
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230 checkNotCompiled(false); |
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231 } |
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232 |
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233 /** |
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234 * Checks, that {@linkplain #method} is not (OSR-)compiled. |
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235 * |
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236 * @param isOsr Check for OSR compilation if true |
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237 * @throws RuntimeException if {@linkplain #method} is in compiler queue or |
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238 * is compiled, or if {@linkplain #method} has zero |
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239 * compilation level. |
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240 */ |
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241 protected final void checkNotCompiled(boolean isOsr) { |
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242 waitBackgroundCompilation(); |
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243 if (WHITE_BOX.isMethodQueuedForCompilation(method)) { |
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244 throw new RuntimeException(method + " must not be in queue"); |
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245 } |
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246 if (WHITE_BOX.isMethodCompiled(method, isOsr)) { |
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247 throw new RuntimeException(method + " must not be " + |
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248 (isOsr ? "osr_" : "") + "compiled"); |
12073 | 249 } |
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250 if (WHITE_BOX.getMethodCompilationLevel(method, isOsr) != 0) { |
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251 throw new RuntimeException(method + (isOsr ? " osr_" : " ") + |
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252 "comp_level must be == 0"); |
12073 | 253 } |
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254 } |
8051 | 255 |
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256 /** |
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257 * Checks, that {@linkplain #method} is compiled. |
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258 * |
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259 * @throws RuntimeException if {@linkplain #method} isn't in compiler queue |
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260 * and isn't compiled, or if {@linkplain #method} |
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261 * has nonzero compilation level |
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262 */ |
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263 protected final void checkCompiled() { |
8051 | 264 final long start = System.currentTimeMillis(); |
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265 waitBackgroundCompilation(); |
8051 | 266 if (WHITE_BOX.isMethodQueuedForCompilation(method)) { |
267 System.err.printf("Warning: %s is still in queue after %dms%n", | |
268 method, System.currentTimeMillis() - start); | |
269 return; | |
270 } | |
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271 if (!WHITE_BOX.isMethodCompiled(method, testCase.isOsr())) { |
12073 | 272 throw new RuntimeException(method + " must be " |
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273 + (testCase.isOsr() ? "osr_" : "") + "compiled"); |
12073 | 274 } |
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275 if (WHITE_BOX.getMethodCompilationLevel(method, testCase.isOsr()) |
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276 == 0) { |
12073 | 277 throw new RuntimeException(method |
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278 + (testCase.isOsr() ? " osr_" : " ") |
12073 | 279 + "comp_level must be != 0"); |
280 } | |
281 } | |
282 | |
283 protected final void deoptimize() { | |
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284 WHITE_BOX.deoptimizeMethod(method, testCase.isOsr()); |
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285 if (testCase.isOsr()) { |
12073 | 286 WHITE_BOX.deoptimizeMethod(method, false); |
8051 | 287 } |
12073 | 288 } |
289 | |
290 protected final int getCompLevel() { | |
17817 | 291 NMethod nm = NMethod.get(method, testCase.isOsr()); |
292 return nm == null ? COMP_LEVEL_NONE : nm.comp_level; | |
12073 | 293 } |
294 | |
295 protected final boolean isCompilable() { | |
296 return WHITE_BOX.isMethodCompilable(method, COMP_LEVEL_ANY, | |
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297 testCase.isOsr()); |
12073 | 298 } |
299 | |
300 protected final boolean isCompilable(int compLevel) { | |
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301 return WHITE_BOX |
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302 .isMethodCompilable(method, compLevel, testCase.isOsr()); |
12073 | 303 } |
304 | |
305 protected final void makeNotCompilable() { | |
306 WHITE_BOX.makeMethodNotCompilable(method, COMP_LEVEL_ANY, | |
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307 testCase.isOsr()); |
12073 | 308 } |
309 | |
310 protected final void makeNotCompilable(int compLevel) { | |
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311 WHITE_BOX.makeMethodNotCompilable(method, compLevel, testCase.isOsr()); |
8051 | 312 } |
313 | |
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314 /** |
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315 * Waits for completion of background compilation of {@linkplain #method}. |
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316 */ |
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317 protected final void waitBackgroundCompilation() { |
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318 waitBackgroundCompilation(method); |
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319 } |
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320 |
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321 /** |
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322 * Waits for completion of background compilation of the given executable. |
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323 * |
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324 * @param executable Executable |
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325 */ |
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326 protected static final void waitBackgroundCompilation(Executable executable) { |
8766 | 327 if (!BACKGROUND_COMPILATION) { |
328 return; | |
329 } | |
8051 | 330 final Object obj = new Object(); |
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331 for (int i = 0; i < 10 |
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332 && WHITE_BOX.isMethodQueuedForCompilation(executable); ++i) { |
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333 synchronized (obj) { |
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334 try { |
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335 obj.wait(1000); |
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336 } catch (InterruptedException e) { |
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337 Thread.currentThread().interrupt(); |
8051 | 338 } |
339 } | |
340 } | |
341 } | |
342 | |
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343 /** |
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344 * Prints information about {@linkplain #method}. |
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345 */ |
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346 protected final void printInfo() { |
8051 | 347 System.out.printf("%n%s:%n", method); |
348 System.out.printf("\tcompilable:\t%b%n", | |
12073 | 349 WHITE_BOX.isMethodCompilable(method, COMP_LEVEL_ANY, false)); |
8051 | 350 System.out.printf("\tcompiled:\t%b%n", |
12073 | 351 WHITE_BOX.isMethodCompiled(method, false)); |
8051 | 352 System.out.printf("\tcomp_level:\t%d%n", |
12073 | 353 WHITE_BOX.getMethodCompilationLevel(method, false)); |
354 System.out.printf("\tosr_compilable:\t%b%n", | |
355 WHITE_BOX.isMethodCompilable(method, COMP_LEVEL_ANY, true)); | |
356 System.out.printf("\tosr_compiled:\t%b%n", | |
357 WHITE_BOX.isMethodCompiled(method, true)); | |
358 System.out.printf("\tosr_comp_level:\t%d%n", | |
359 WHITE_BOX.getMethodCompilationLevel(method, true)); | |
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360 System.out.printf("\tin_queue:\t%b%n", |
8051 | 361 WHITE_BOX.isMethodQueuedForCompilation(method)); |
362 System.out.printf("compile_queues_size:\t%d%n%n", | |
363 WHITE_BOX.getCompileQueuesSize()); | |
364 } | |
365 | |
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366 /** |
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367 * Executes testing. |
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368 */ |
8051 | 369 protected abstract void test() throws Exception; |
370 | |
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371 /** |
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372 * Tries to trigger compilation of {@linkplain #method} by call |
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373 * {@linkplain TestCase#getCallable()} enough times. |
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374 * |
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375 * @return accumulated result |
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376 * @see #compile(int) |
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377 */ |
8051 | 378 protected final int compile() { |
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379 if (testCase.isOsr()) { |
12073 | 380 return compile(1); |
381 } else { | |
382 return compile(THRESHOLD); | |
383 } | |
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384 } |
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385 |
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386 /** |
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387 * Tries to trigger compilation of {@linkplain #method} by call |
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388 * {@linkplain TestCase#getCallable()} specified times. |
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389 * |
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390 * @param count invocation count |
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391 * @return accumulated result |
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392 */ |
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393 protected final int compile(int count) { |
8051 | 394 int result = 0; |
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395 Integer tmp; |
8766 | 396 for (int i = 0; i < count; ++i) { |
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397 try { |
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398 tmp = testCase.getCallable().call(); |
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399 } catch (Exception e) { |
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400 tmp = null; |
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401 } |
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402 result += tmp == null ? 0 : tmp; |
8051 | 403 } |
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404 if (IS_VERBOSE) { |
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405 System.out.println("method was invoked " + count + " times"); |
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406 } |
8051 | 407 return result; |
408 } | |
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409 |
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410 /** |
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411 * Utility interface provides tested method and object to invoke it. |
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412 */ |
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413 public interface TestCase { |
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414 /** the name of test case */ |
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415 String name(); |
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416 |
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417 /** tested method */ |
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418 Executable getExecutable(); |
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419 |
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420 /** object to invoke {@linkplain #getExecutable()} */ |
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421 Callable<Integer> getCallable(); |
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422 |
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423 /** flag for OSR test case */ |
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424 boolean isOsr(); |
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425 } |
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426 |
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427 /** |
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428 * @return {@code true} if the current test case is OSR and the mode is |
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429 * Xcomp, otherwise {@code false} |
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430 */ |
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431 protected boolean skipXcompOSR() { |
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432 boolean result = testCase.isOsr() |
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433 && CompilerWhiteBoxTest.MODE.startsWith("compiled "); |
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434 if (result && IS_VERBOSE) { |
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435 System.err.printf("Warning: %s is not applicable in %s%n", |
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436 testCase.name(), CompilerWhiteBoxTest.MODE); |
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437 } |
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438 return result; |
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439 } |
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440 } |
8051 | 441 |
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442 enum SimpleTestCase implements CompilerWhiteBoxTest.TestCase { |
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443 /** constructor test case */ |
12073 | 444 CONSTRUCTOR_TEST(Helper.CONSTRUCTOR, Helper.CONSTRUCTOR_CALLABLE, false), |
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445 /** method test case */ |
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446 METHOD_TEST(Helper.METHOD, Helper.METHOD_CALLABLE, false), |
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447 /** static method test case */ |
12073 | 448 STATIC_TEST(Helper.STATIC, Helper.STATIC_CALLABLE, false), |
449 /** OSR constructor test case */ | |
450 OSR_CONSTRUCTOR_TEST(Helper.OSR_CONSTRUCTOR, | |
451 Helper.OSR_CONSTRUCTOR_CALLABLE, true), | |
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452 /** OSR method test case */ |
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453 OSR_METHOD_TEST(Helper.OSR_METHOD, Helper.OSR_METHOD_CALLABLE, true), |
12073 | 454 /** OSR static method test case */ |
455 OSR_STATIC_TEST(Helper.OSR_STATIC, Helper.OSR_STATIC_CALLABLE, true); | |
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456 |
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457 private final Executable executable; |
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458 private final Callable<Integer> callable; |
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459 private final boolean isOsr; |
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460 |
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461 private SimpleTestCase(Executable executable, Callable<Integer> callable, |
12073 | 462 boolean isOsr) { |
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463 this.executable = executable; |
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464 this.callable = callable; |
12073 | 465 this.isOsr = isOsr; |
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466 } |
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467 |
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468 @Override |
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469 public Executable getExecutable() { |
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470 return executable; |
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471 } |
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472 |
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473 @Override |
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474 public Callable<Integer> getCallable() { |
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475 return callable; |
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476 } |
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477 |
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478 @Override |
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479 public boolean isOsr() { |
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480 return isOsr; |
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481 } |
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482 |
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483 private static class Helper { |
12073 | 484 |
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485 private static final Callable<Integer> CONSTRUCTOR_CALLABLE |
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486 = new Callable<Integer>() { |
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487 @Override |
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488 public Integer call() throws Exception { |
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489 return new Helper(1337).hashCode(); |
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490 } |
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491 }; |
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492 |
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493 private static final Callable<Integer> METHOD_CALLABLE |
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494 = new Callable<Integer>() { |
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495 private final Helper helper = new Helper(); |
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496 |
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497 @Override |
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498 public Integer call() throws Exception { |
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499 return helper.method(); |
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500 } |
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501 }; |
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502 |
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503 private static final Callable<Integer> STATIC_CALLABLE |
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504 = new Callable<Integer>() { |
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505 @Override |
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506 public Integer call() throws Exception { |
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507 return staticMethod(); |
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508 } |
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509 }; |
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510 |
12073 | 511 private static final Callable<Integer> OSR_CONSTRUCTOR_CALLABLE |
512 = new Callable<Integer>() { | |
513 @Override | |
514 public Integer call() throws Exception { | |
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515 return new Helper(null, CompilerWhiteBoxTest.BACKEDGE_THRESHOLD).hashCode(); |
12073 | 516 } |
517 }; | |
518 | |
519 private static final Callable<Integer> OSR_METHOD_CALLABLE | |
520 = new Callable<Integer>() { | |
521 private final Helper helper = new Helper(); | |
522 | |
523 @Override | |
524 public Integer call() throws Exception { | |
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525 return helper.osrMethod(CompilerWhiteBoxTest.BACKEDGE_THRESHOLD); |
12073 | 526 } |
527 }; | |
528 | |
529 private static final Callable<Integer> OSR_STATIC_CALLABLE | |
530 = new Callable<Integer>() { | |
531 @Override | |
532 public Integer call() throws Exception { | |
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533 return osrStaticMethod(CompilerWhiteBoxTest.BACKEDGE_THRESHOLD); |
12073 | 534 } |
535 }; | |
536 | |
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537 private static final Constructor CONSTRUCTOR; |
12073 | 538 private static final Constructor OSR_CONSTRUCTOR; |
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539 private static final Method METHOD; |
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540 private static final Method STATIC; |
12073 | 541 private static final Method OSR_METHOD; |
542 private static final Method OSR_STATIC; | |
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543 |
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544 static { |
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545 try { |
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546 CONSTRUCTOR = Helper.class.getDeclaredConstructor(int.class); |
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547 } catch (NoSuchMethodException | SecurityException e) { |
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548 throw new RuntimeException( |
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549 "exception on getting method Helper.<init>(int)", e); |
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550 } |
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551 try { |
12073 | 552 OSR_CONSTRUCTOR = Helper.class.getDeclaredConstructor( |
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553 Object.class, long.class); |
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554 } catch (NoSuchMethodException | SecurityException e) { |
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555 throw new RuntimeException( |
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556 "exception on getting method Helper.<init>(Object, long)", e); |
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557 } |
12073 | 558 METHOD = getMethod("method"); |
559 STATIC = getMethod("staticMethod"); | |
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560 OSR_METHOD = getMethod("osrMethod", long.class); |
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561 OSR_STATIC = getMethod("osrStaticMethod", long.class); |
12073 | 562 } |
563 | |
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564 private static Method getMethod(String name, Class<?>... parameterTypes) { |
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565 try { |
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566 return Helper.class.getDeclaredMethod(name, parameterTypes); |
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567 } catch (NoSuchMethodException | SecurityException e) { |
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568 throw new RuntimeException( |
12073 | 569 "exception on getting method Helper." + name, e); |
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570 } |
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571 } |
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572 |
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573 private static int staticMethod() { |
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574 return 1138; |
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575 } |
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576 |
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577 private int method() { |
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578 return 42; |
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579 } |
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580 |
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581 /** |
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582 * Deoptimizes all non-osr versions of the given executable after |
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583 * compilation finished. |
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584 * |
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585 * @param e Executable |
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586 * @throws Exception |
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587 */ |
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588 private static void waitAndDeoptimize(Executable e) { |
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589 CompilerWhiteBoxTest.waitBackgroundCompilation(e); |
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590 if (WhiteBox.getWhiteBox().isMethodQueuedForCompilation(e)) { |
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591 throw new RuntimeException(e + " must not be in queue"); |
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592 } |
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593 // Deoptimize non-osr versions of executable |
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594 WhiteBox.getWhiteBox().deoptimizeMethod(e, false); |
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595 } |
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596 |
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597 /** |
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598 * Executes the method multiple times to make sure we have |
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599 * enough profiling information before triggering an OSR |
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600 * compilation. Otherwise the C2 compiler may add uncommon traps. |
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601 * |
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602 * @param m Method to be executed |
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603 * @return Number of times the method was executed |
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604 * @throws Exception |
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605 */ |
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606 private static int warmup(Method m) throws Exception { |
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607 waitAndDeoptimize(m); |
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608 Helper helper = new Helper(); |
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609 int result = 0; |
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610 for (long i = 0; i < CompilerWhiteBoxTest.THRESHOLD; ++i) { |
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611 result += (int)m.invoke(helper, 1); |
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612 } |
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613 // Wait to make sure OSR compilation is not blocked by |
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614 // non-OSR compilation in the compile queue |
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615 CompilerWhiteBoxTest.waitBackgroundCompilation(m); |
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616 return result; |
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617 } |
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618 |
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619 /** |
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620 * Executes the constructor multiple times to make sure we |
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621 * have enough profiling information before triggering an OSR |
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622 * compilation. Otherwise the C2 compiler may add uncommon traps. |
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623 * |
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624 * @param c Constructor to be executed |
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625 * @return Number of times the constructor was executed |
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626 * @throws Exception |
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627 */ |
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628 private static int warmup(Constructor c) throws Exception { |
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629 waitAndDeoptimize(c); |
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630 int result = 0; |
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631 for (long i = 0; i < CompilerWhiteBoxTest.THRESHOLD; ++i) { |
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632 result += c.newInstance(null, 1).hashCode(); |
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633 } |
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634 // Wait to make sure OSR compilation is not blocked by |
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635 // non-OSR compilation in the compile queue |
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636 CompilerWhiteBoxTest.waitBackgroundCompilation(c); |
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637 return result; |
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638 } |
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639 |
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640 private static int osrStaticMethod(long limit) throws Exception { |
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641 int result = 0; |
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642 if (limit != 1) { |
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643 result = warmup(OSR_STATIC); |
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644 } |
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645 // Trigger osr compilation |
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646 for (long i = 0; i < limit; ++i) { |
12073 | 647 result += staticMethod(); |
648 } | |
649 return result; | |
650 } | |
651 | |
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652 private int osrMethod(long limit) throws Exception { |
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653 int result = 0; |
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654 if (limit != 1) { |
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655 result = warmup(OSR_METHOD); |
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656 } |
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657 // Trigger osr compilation |
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658 for (long i = 0; i < limit; ++i) { |
12073 | 659 result += method(); |
660 } | |
661 return result; | |
662 } | |
663 | |
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664 private final int x; |
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665 |
12073 | 666 // for method and OSR method test case |
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667 public Helper() { |
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668 x = 0; |
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669 } |
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670 |
12073 | 671 // for OSR constructor test case |
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672 private Helper(Object o, long limit) throws Exception { |
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673 int result = 0; |
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674 if (limit != 1) { |
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675 result = warmup(OSR_CONSTRUCTOR); |
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676 } |
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677 // Trigger osr compilation |
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678 for (long i = 0; i < limit; ++i) { |
12073 | 679 result += method(); |
680 } | |
681 x = result; | |
682 } | |
683 | |
684 // for constructor test case | |
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685 private Helper(int x) { |
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686 this.x = x; |
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687 } |
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688 |
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689 @Override |
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690 public int hashCode() { |
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691 return x; |
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692 } |
8051 | 693 } |
694 } |