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annotate c1x4hotspotsrc/HotSpotVM/src/com/sun/hotspot/c1x/CompilerImpl.java @ 2292:175e7b4d7322

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In CompilerImpl, instantiate C1XCompiler lazily (i.e. just before the first compilation) so that C1XOptions are already set during C1XCompiler's initialization
author Peter Hofer <peter.hofer@jku.at>
date Mon, 11 Apr 2011 17:12:01 +0200
parents 8c426c2891c8
children e3c42b8de67e
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1 /*
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2 * Copyright (c) 2011 Sun Microsystems, Inc. All rights reserved.
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3 *
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4 * Sun Microsystems, Inc. has intellectual property rights relating to technology embodied in the product
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5 * that is described in this document. In particular, and without limitation, these intellectual property
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6 * rights may include one or more of the U.S. patents listed at http://www.sun.com/patents and one or
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7 * more additional patents or pending patent applications in the U.S. and in other countries.
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8 *
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9 * U.S. Government Rights - Commercial software. Government users are subject to the Sun
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10 * Microsystems, Inc. standard license agreement and applicable provisions of the FAR and its
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11 * supplements.
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12 *
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13 * Use is subject to license terms. Sun, Sun Microsystems, the Sun logo, Java and Solaris are trademarks or
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14 * registered trademarks of Sun Microsystems, Inc. in the U.S. and other countries. All SPARC trademarks
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15 * are used under license and are trademarks or registered trademarks of SPARC International, Inc. in the
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16 * U.S. and other countries.
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17 *
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18 * UNIX is a registered trademark in the U.S. and other countries, exclusively licensed through X/Open
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19 * Company, Ltd.
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20 */
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21 package com.sun.hotspot.c1x;
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22
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23 import java.io.*;
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24 import java.lang.management.*;
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25 import java.net.*;
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26
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27 import com.sun.c1x.*;
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28 import com.sun.c1x.target.amd64.*;
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29 import com.sun.cri.xir.*;
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30 import com.sun.hotspot.c1x.logging.*;
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31 import com.sun.hotspot.c1x.server.*;
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32
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33 /**
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34 * Singleton class holding the instance of the C1XCompiler.
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35 *
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36 * @author Thomas Wuerthinger, Lukas Stadler
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37 */
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38 public final class CompilerImpl implements Compiler, Remote {
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39
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40 private static Compiler theInstance;
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41 private static boolean PrintGCStats = false;
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42
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43 private final VMEntries vmEntries;
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44 private final VMExits vmExits;
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45
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46 private C1XCompiler compiler;
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47 private final HotSpotRuntime runtime;
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48 private final RiXirGenerator generator;
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49 private final HotSpotTarget target;
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50 private final HotSpotRegisterConfig registerConfig;
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51
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52 public static Compiler getInstance() {
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53 if (theInstance == null) {
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54 // remote compilation (will not create a C1XCompiler)
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55 String remote = System.getProperty("c1x.remote");
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56 if (remote != null) {
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57 try {
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58 System.out.println("C1X compiler started in client/server mode, server: " + remote);
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59 Socket socket = new Socket(remote, 1199);
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60 ReplacingStreams streams = new ReplacingStreams(socket.getOutputStream(), socket.getInputStream());
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61 streams.getInvocation().sendResult(new VMEntriesNative());
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62
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63 theInstance = (Compiler) streams.getInvocation().waitForResult();
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64 } catch (IOException e1) {
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65 System.out.println("Connection to compilation server FAILED.");
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66 throw new RuntimeException(e1);
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67 } catch (ClassNotFoundException e2) {
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68 System.out.println("Connection to compilation server FAILED.");
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69 throw new RuntimeException(e2);
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70 }
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71 } else {
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72 theInstance = new CompilerImpl(null);
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73 Runtime.getRuntime().addShutdownHook(new ShutdownThread());
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74 }
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75 }
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76 return theInstance;
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77 }
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78
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79 public static class ShutdownThread extends Thread {
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80
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81 @Override
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82 public void run() {
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83 VMExitsNative.compileMethods = false;
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84 if (C1XOptions.PrintMetrics) {
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85 C1XMetrics.print();
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86 }
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87 if (C1XOptions.PrintTimers) {
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88 C1XTimers.print();
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89 }
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90 if (PrintGCStats) {
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91 printGCStats();
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92 }
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93 }
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94 }
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95
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96 public static void printGCStats() {
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97 long totalGarbageCollections = 0;
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98 long garbageCollectionTime = 0;
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99
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100 for (GarbageCollectorMXBean gc : ManagementFactory.getGarbageCollectorMXBeans()) {
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101 long count = gc.getCollectionCount();
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102 if (count >= 0) {
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103 totalGarbageCollections += count;
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104 }
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105
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106 long time = gc.getCollectionTime();
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107 if (time >= 0) {
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108 garbageCollectionTime += time;
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109 }
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110 }
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111
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112 System.out.println("Total Garbage Collections: " + totalGarbageCollections);
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113 System.out.println("Total Garbage Collection Time (ms): " + garbageCollectionTime);
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114 }
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115
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116 public static Compiler initializeServer(VMEntries entries) {
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117 assert theInstance == null;
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118 theInstance = new CompilerImpl(entries);
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119 Runtime.getRuntime().addShutdownHook(new ShutdownThread());
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120 return theInstance;
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121 }
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122
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123 @Override
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124 public VMEntries getVMEntries() {
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125 return vmEntries;
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126 }
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127
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128 @Override
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129 public VMExits getVMExits() {
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130 return vmExits;
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131 }
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132
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133 private CompilerImpl(VMEntries entries) {
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134
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135 // initialize VMEntries
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136 if (entries == null)
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137 entries = new VMEntriesNative();
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138
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139 // initialize VMExits
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140 VMExits exits = new VMExitsNative(this);
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141
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142 // logging, etc.
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143 if (CountingProxy.ENABLED) {
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144 exits = CountingProxy.getProxy(VMExits.class, exits);
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145 entries = CountingProxy.getProxy(VMEntries.class, entries);
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146 }
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147 if (Logger.ENABLED) {
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148 exits = LoggingProxy.getProxy(VMExits.class, exits);
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149 entries = LoggingProxy.getProxy(VMEntries.class, entries);
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150 }
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151
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152 // set the final fields
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153 vmEntries = entries;
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154 vmExits = exits;
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155
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156 // initialize compiler and C1XOptions
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157 HotSpotVMConfig config = vmEntries.getConfiguration();
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158 config.check();
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159
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160 // these options are important - c1x4hotspot will not generate correct code without them
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161 C1XOptions.GenSpecialDivChecks = true;
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162 C1XOptions.NullCheckUniquePc = true;
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163 C1XOptions.InvokeSnippetAfterArguments = true;
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164 C1XOptions.StackShadowPages = config.stackShadowPages;
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165
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166 runtime = new HotSpotRuntime(config, this);
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167 registerConfig = runtime.globalStubRegConfig;
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168
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169 final int wordSize = 8;
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170 final int stackFrameAlignment = 16;
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171 target = new HotSpotTarget(new AMD64(), true, wordSize, stackFrameAlignment, config.vmPageSize, wordSize, true);
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172
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173 RiXirGenerator generator = new HotSpotXirGenerator(config, target, registerConfig, this);
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174 if (Logger.ENABLED) {
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175 generator = LoggingProxy.getProxy(RiXirGenerator.class, generator);
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176 }
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177 this.generator = generator;
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178 }
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179
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180 @Override
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181 public C1XCompiler getCompiler() {
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182 if (compiler == null) {
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183 compiler = new C1XCompiler(runtime, target, generator, registerConfig);
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184 }
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185 return compiler;
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186 }
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187
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188 }