Mercurial > hg > graal-jvmci-8
annotate graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/CompileTheWorld.java @ 16831:217eee2ddead
support use of -XX:CompileCommand=dontinline to exclude problematic methods from CompileTheWorld
author | Doug Simon <doug.simon@oracle.com> |
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date | Thu, 14 Aug 2014 15:35:20 +0200 |
parents | 46eaf7cd8275 |
children | ce8ac92efb14 |
rev | line source |
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9108 | 1 /* |
2 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. | |
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 package com.oracle.graal.hotspot; | |
24 | |
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25 import static com.oracle.graal.compiler.common.GraalOptions.*; |
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26 import static com.oracle.graal.debug.internal.MemUseTrackerImpl.*; |
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27 import static com.oracle.graal.hotspot.HotSpotGraalRuntime.*; |
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28 import static com.oracle.graal.nodes.StructuredGraph.*; |
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29 |
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30 import java.io.*; |
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31 import java.lang.reflect.*; |
9108 | 32 import java.net.*; |
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33 import java.util.*; |
9108 | 34 import java.util.jar.*; |
35 | |
36 import com.oracle.graal.api.meta.*; | |
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37 import com.oracle.graal.api.meta.ProfilingInfo.TriState; |
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38 import com.oracle.graal.bytecode.*; |
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39 import com.oracle.graal.compiler.common.*; |
9108 | 40 import com.oracle.graal.debug.*; |
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41 import com.oracle.graal.hotspot.HotSpotOptions.OptionConsumer; |
9108 | 42 import com.oracle.graal.hotspot.meta.*; |
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43 import com.oracle.graal.options.*; |
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44 import com.oracle.graal.options.OptionValue.OverrideScope; |
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45 import com.oracle.graal.phases.tiers.*; |
9108 | 46 import com.oracle.graal.replacements.*; |
47 | |
48 /** | |
49 * This class implements compile-the-world functionality in Graal. | |
50 */ | |
51 public final class CompileTheWorld { | |
52 | |
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53 /** |
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54 * Magic token to trigger reading files from the boot class path. |
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55 */ |
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56 public static final String SUN_BOOT_CLASS_PATH = "sun.boot.class.path"; |
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57 |
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58 public static class Options { |
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59 // @formatter:off |
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60 @Option(help = "Compile all methods in all classes on given class path") |
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61 public static final OptionValue<String> CompileTheWorldClasspath = new OptionValue<>(SUN_BOOT_CLASS_PATH); |
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62 @Option(help = "Verbose CompileTheWorld operation") |
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63 public static final OptionValue<Boolean> CompileTheWorldVerbose = new OptionValue<>(true); |
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64 @Option(help = "The number of CompileTheWorld iterations to perform") |
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65 public static final OptionValue<Integer> CompileTheWorldIterations = new OptionValue<>(1); |
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66 @Option(help = "First class to consider when using -XX:+CompileTheWorld") |
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67 public static final OptionValue<Integer> CompileTheWorldStartAt = new OptionValue<>(1); |
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68 @Option(help = "Last class to consider when using -XX:+CompileTheWorld") |
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69 public static final OptionValue<Integer> CompileTheWorldStopAt = new OptionValue<>(Integer.MAX_VALUE); |
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70 @Option(help = "Option value overrides to use during compile the world. For example, " + |
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71 "to disable inlining and partial escape analysis specify '-PartialEscapeAnalysis -Inline'. " + |
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72 "The format for each option is the same as on the command line just without the '-G:' prefix.") |
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73 public static final OptionValue<String> CompileTheWorldConfig = new OptionValue<>(null); |
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74 // @formatter:on |
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75 |
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76 /** |
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77 * Overrides {@link #CompileTheWorldStartAt} and {@link #CompileTheWorldStopAt} from |
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78 * {@code -XX} HotSpot options of the same name if the latter have non-default values. |
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79 */ |
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80 static void overrideWithNativeOptions(HotSpotVMConfig c) { |
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81 if (c.compileTheWorldStartAt != 1) { |
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82 CompileTheWorldStartAt.setValue(c.compileTheWorldStartAt); |
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83 } |
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84 if (c.compileTheWorldStopAt != Integer.MAX_VALUE) { |
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85 CompileTheWorldStopAt.setValue(c.compileTheWorldStopAt); |
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86 } |
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87 } |
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88 } |
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89 |
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90 /** |
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91 * A mechanism for overriding Graal options that affect compilation. A {@link Config} object |
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92 * should be used in a try-with-resources statement to ensure overriding of options is scoped |
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93 * properly. For example: |
14906 | 94 * |
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95 * <pre> |
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96 * Config config = ...; |
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97 * try (AutoCloseable s = config == null ? null : config.apply()) { |
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98 * // perform a Graal compilation |
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99 * } |
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100 * </pre> |
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101 */ |
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102 @SuppressWarnings("serial") |
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103 public static class Config extends HashMap<OptionValue<?>, Object> implements AutoCloseable, OptionConsumer { |
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104 OverrideScope scope; |
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105 |
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106 /** |
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107 * Creates a {@link Config} object by parsing a set of space separated override options. |
14906 | 108 * |
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109 * @param options a space separated set of option value settings with each option setting in |
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110 * a format compatible with |
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111 * {@link HotSpotOptions#parseOption(String, OptionConsumer)}. Ignored if null. |
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112 */ |
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113 public Config(String options) { |
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114 if (options != null) { |
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115 for (String option : options.split("\\s+")) { |
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116 if (!HotSpotOptions.parseOption(option, this)) { |
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117 throw new GraalInternalError("Invalid option specified: %s", option); |
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118 } |
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119 } |
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120 } |
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121 } |
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122 |
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123 /** |
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124 * Applies the overrides represented by this object. The overrides are in effect until |
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125 * {@link #close()} is called on this object. |
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126 */ |
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127 Config apply() { |
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128 assert scope == null; |
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129 scope = OptionValue.override(this); |
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130 return this; |
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131 } |
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132 |
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133 public void close() { |
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134 assert scope != null; |
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135 scope.close(); |
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136 |
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137 scope = null; |
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138 |
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139 } |
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140 |
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141 public void set(OptionDescriptor desc, Object value) { |
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142 put(desc.getOptionValue(), value); |
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143 } |
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144 } |
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145 |
9108 | 146 // Some runtime instances we need. |
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147 private final HotSpotGraalRuntime runtime = runtime(); |
9108 | 148 |
14906 | 149 /** List of Zip/Jar files to compile (see {@link Options#CompileTheWorldClasspath}). */ |
9108 | 150 private final String files; |
151 | |
14906 | 152 /** Class index to start compilation at (see {@link Options#CompileTheWorldStartAt}). */ |
9108 | 153 private final int startAt; |
154 | |
14906 | 155 /** Class index to stop compilation at (see {@link Options#CompileTheWorldStopAt}). */ |
9108 | 156 private final int stopAt; |
157 | |
158 // Counters | |
159 private int classFileCounter = 0; | |
160 private int compiledMethodsCounter = 0; | |
161 private long compileTime = 0; | |
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162 private long memoryUsed = 0; |
9108 | 163 |
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164 private boolean verbose; |
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165 private final Config config; |
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166 |
9108 | 167 /** |
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168 * Creates a compile-the-world instance. |
14906 | 169 * |
9108 | 170 * @param files {@link File#pathSeparator} separated list of Zip/Jar files to compile |
171 * @param startAt index of the class file to start compilation at | |
172 * @param stopAt index of the class file to stop compilation at | |
173 */ | |
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174 public CompileTheWorld(String files, Config config, int startAt, int stopAt, boolean verbose) { |
9108 | 175 this.files = files; |
176 this.startAt = startAt; | |
177 this.stopAt = stopAt; | |
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178 this.verbose = verbose; |
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179 this.config = config; |
9108 | 180 |
13115 | 181 // We don't want the VM to exit when a method fails to compile... |
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182 config.put(ExitVMOnException, false); |
13115 | 183 |
184 // ...but we want to see exceptions. | |
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185 config.put(PrintBailout, true); |
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186 config.put(PrintStackTraceOnException, true); |
9108 | 187 } |
188 | |
189 /** | |
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190 * Compiles all methods in all classes in the Zip/Jar archive files in |
14906 | 191 * {@link Options#CompileTheWorldClasspath}. If {@link Options#CompileTheWorldClasspath} |
192 * contains the magic token {@link #SUN_BOOT_CLASS_PATH} passed up from HotSpot we take the | |
193 * files from the boot class path. | |
9108 | 194 */ |
195 public void compile() throws Throwable { | |
196 if (SUN_BOOT_CLASS_PATH.equals(files)) { | |
197 final String[] entries = System.getProperty(SUN_BOOT_CLASS_PATH).split(File.pathSeparator); | |
198 String bcpFiles = ""; | |
199 for (int i = 0; i < entries.length; i++) { | |
200 final String entry = entries[i]; | |
201 | |
202 // We stop at rt.jar, unless it is the first boot class path entry. | |
203 if (entry.endsWith("rt.jar") && (i > 0)) { | |
204 break; | |
205 } | |
206 if (i > 0) { | |
207 bcpFiles += File.pathSeparator; | |
208 } | |
209 bcpFiles += entry; | |
210 } | |
211 compile(bcpFiles); | |
212 } else { | |
213 compile(files); | |
214 } | |
215 } | |
216 | |
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217 public void println() { |
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218 println(""); |
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219 } |
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220 |
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221 public void println(String format, Object... args) { |
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222 println(String.format(format, args)); |
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223 } |
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224 |
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225 public void println(String s) { |
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226 if (verbose) { |
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227 TTY.println(s); |
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228 } |
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229 } |
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230 |
9108 | 231 /** |
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232 * Compiles all methods in all classes in the Zip/Jar files passed. |
14906 | 233 * |
9108 | 234 * @param fileList {@link File#pathSeparator} separated list of Zip/Jar files to compile |
235 * @throws Throwable | |
236 */ | |
237 private void compile(String fileList) throws Throwable { | |
238 final String[] entries = fileList.split(File.pathSeparator); | |
239 | |
240 for (int i = 0; i < entries.length; i++) { | |
241 final String entry = entries[i]; | |
242 | |
243 // For now we only compile all methods in all classes in zip/jar files. | |
244 if (!entry.endsWith(".zip") && !entry.endsWith(".jar")) { | |
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245 println("CompileTheWorld : Skipped classes in " + entry); |
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246 println(); |
9108 | 247 continue; |
248 } | |
249 | |
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250 println("CompileTheWorld : Compiling all classes in " + entry); |
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251 println(); |
9108 | 252 |
253 URL url = new URL("jar", "", "file:" + entry + "!/"); | |
254 ClassLoader loader = new URLClassLoader(new URL[]{url}); | |
255 | |
256 JarFile jarFile = new JarFile(entry); | |
257 Enumeration<JarEntry> e = jarFile.entries(); | |
258 | |
259 while (e.hasMoreElements()) { | |
260 JarEntry je = e.nextElement(); | |
261 if (je.isDirectory() || !je.getName().endsWith(".class")) { | |
262 continue; | |
263 } | |
264 | |
265 // Are we done? | |
266 if (classFileCounter >= stopAt) { | |
267 break; | |
268 } | |
269 | |
270 String className = je.getName().substring(0, je.getName().length() - ".class".length()); | |
271 classFileCounter++; | |
272 | |
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273 try (AutoCloseable s = config.apply()) { |
9108 | 274 // Load and initialize class |
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275 Class<?> javaClass = Class.forName(className.replace('/', '.'), true, loader); |
9108 | 276 |
277 // Pre-load all classes in the constant pool. | |
278 try { | |
279 HotSpotResolvedObjectType objectType = (HotSpotResolvedObjectType) HotSpotResolvedObjectType.fromClass(javaClass); | |
280 ConstantPool constantPool = objectType.constantPool(); | |
281 for (int cpi = 1; cpi < constantPool.length(); cpi++) { | |
282 constantPool.loadReferencedType(cpi, Bytecodes.LDC); | |
283 } | |
284 } catch (Throwable t) { | |
285 // If something went wrong during pre-loading we just ignore it. | |
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286 println("Preloading failed for (%d) %s", classFileCounter, className); |
9108 | 287 } |
288 | |
289 // Are we compiling this class? | |
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290 HotSpotMetaAccessProvider metaAccess = runtime.getHostProviders().getMetaAccess(); |
9108 | 291 if (classFileCounter >= startAt) { |
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292 println("CompileTheWorld (%d) : %s", classFileCounter, className); |
9108 | 293 |
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294 // Compile each constructor/method in the class. |
9108 | 295 for (Constructor<?> constructor : javaClass.getDeclaredConstructors()) { |
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296 HotSpotResolvedJavaMethod javaMethod = (HotSpotResolvedJavaMethod) metaAccess.lookupJavaConstructor(constructor); |
9108 | 297 if (canBeCompiled(javaMethod, constructor.getModifiers())) { |
298 compileMethod(javaMethod); | |
299 } | |
300 } | |
301 for (Method method : javaClass.getDeclaredMethods()) { | |
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302 HotSpotResolvedJavaMethod javaMethod = (HotSpotResolvedJavaMethod) metaAccess.lookupJavaMethod(method); |
9108 | 303 if (canBeCompiled(javaMethod, method.getModifiers())) { |
304 compileMethod(javaMethod); | |
305 } | |
306 } | |
307 } | |
308 } catch (Throwable t) { | |
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309 println("CompileTheWorld (%d) : Skipping %s", classFileCounter, className); |
9108 | 310 } |
311 } | |
312 jarFile.close(); | |
313 } | |
314 | |
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315 println(); |
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316 println("CompileTheWorld : Done (%d classes, %d methods, %d ms, %d bytes of memory used)", classFileCounter, compiledMethodsCounter, compileTime, memoryUsed); |
9108 | 317 } |
318 | |
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319 class CTWCompilationTask extends CompilationTask { |
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320 |
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321 CTWCompilationTask(HotSpotBackend backend, HotSpotResolvedJavaMethod method) { |
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322 super(backend, method, INVOCATION_ENTRY_BCI, 0L, method.allocateCompileId(INVOCATION_ENTRY_BCI)); |
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323 } |
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324 |
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325 /** |
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326 * Returns a fresh compilation suite for its compilation so that the CTW option value |
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327 * overriding configuration has effect. |
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328 */ |
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329 @Override |
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330 protected Suites getSuites(HotSpotProviders providers) { |
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331 assert config.scope != null : "not inside a CTW option value overriding scope"; |
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332 return providers.getSuites().createSuites(); |
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333 } |
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334 |
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335 /** |
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336 * Returns empty profiling info to be as close to the CTW behavior of C1 and C2 as possible. |
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337 */ |
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338 @Override |
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339 protected ProfilingInfo getProfilingInfo() { |
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340 // Be optimistic and return false for exceptionSeen. |
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341 return DefaultProfilingInfo.get(TriState.FALSE); |
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342 } |
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343 } |
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344 |
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345 /** |
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346 * Compiles a method and gathers some statistics. |
9108 | 347 */ |
348 private void compileMethod(HotSpotResolvedJavaMethod method) { | |
349 try { | |
350 long start = System.currentTimeMillis(); | |
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351 long allocatedAtStart = getCurrentThreadAllocatedBytes(); |
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352 |
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353 HotSpotBackend backend = runtime.getHostBackend(); |
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354 CompilationTask task = new CTWCompilationTask(backend, method); |
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355 task.runCompilation(); |
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356 |
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357 memoryUsed += getCurrentThreadAllocatedBytes() - allocatedAtStart; |
9108 | 358 compileTime += (System.currentTimeMillis() - start); |
359 compiledMethodsCounter++; | |
360 method.reprofile(); // makes the method also not-entrant | |
361 } catch (Throwable t) { | |
362 // Catch everything and print a message | |
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363 println("CompileTheWorld (%d) : Error compiling method: %s", classFileCounter, method.format("%H.%n(%p):%r")); |
9108 | 364 t.printStackTrace(TTY.cachedOut); |
365 } | |
366 } | |
367 | |
368 /** | |
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369 * Determines if a method should be compiled (Cf. CompilationPolicy::can_be_compiled). |
14906 | 370 * |
9108 | 371 * @return true if it can be compiled, false otherwise |
372 */ | |
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373 private boolean canBeCompiled(HotSpotResolvedJavaMethod javaMethod, int modifiers) { |
9108 | 374 if (Modifier.isAbstract(modifiers) || Modifier.isNative(modifiers)) { |
375 return false; | |
376 } | |
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377 HotSpotVMConfig c = runtime.getConfig(); |
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378 if (c.dontCompileHugeMethods && javaMethod.getCodeSize() > c.hugeMethodLimit) { |
9108 | 379 return false; |
380 } | |
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381 // Allow use of -XX:CompileCommand=dontinline to exclude problematic methods |
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382 if (!javaMethod.canBeInlined()) { |
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383 return false; |
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384 } |
9108 | 385 // Skip @Snippets for now |
386 if (javaMethod.getAnnotation(Snippet.class) != null) { | |
387 return false; | |
388 } | |
389 return true; | |
390 } | |
391 | |
392 } |