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annotate c1x4hotspotsrc/HotSpotVM/src/com/sun/hotspot/c1x/CompilerImpl.java @ 2296:34354e2e40a3

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cleanups and client/server fixes: * explicit init of CompilerImpl * CompilationServer terminates without EOFException * moved C1XOptions initialization code into separate class (static initializer changed to static method) * added ConnectionObserver to CompilationServer
author Lukas Stadler <lukas.stadler@jku.at>
date Wed, 13 Apr 2011 14:40:13 +0200
parents e3c42b8de67e
children
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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.ci.*;
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30 import com.sun.cri.ri.*;
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31 import com.sun.cri.xir.*;
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32 import com.sun.hotspot.c1x.logging.*;
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33 import com.sun.hotspot.c1x.server.*;
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34
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35 /**
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36 * Singleton class holding the instance of the C1XCompiler.
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37 *
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38 * @author Thomas Wuerthinger, Lukas Stadler
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39 */
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40 public final class CompilerImpl implements Compiler, Remote {
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41
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42 private static Compiler theInstance;
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43 private static boolean PrintGCStats = false;
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44
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45 public static Compiler getInstance() {
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46 return theInstance;
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47 }
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48
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49 public static void initialize() {
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50 if (theInstance != null) {
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51 throw new IllegalStateException("Compiler already initialized");
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52 }
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53
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54 String remote = System.getProperty("c1x.remote");
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55 if (remote != null) {
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56 // remote compilation (will not create a local Compiler)
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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(false);
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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 // ordinary local compilation
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73 theInstance = new CompilerImpl(null);
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74 Runtime.getRuntime().addShutdownHook(new ShutdownThread());
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75 }
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76 }
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77
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78 public static Compiler initializeServer(VMEntries entries) {
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79 assert theInstance == null;
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80 theInstance = new CompilerImpl(entries);
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81 Runtime.getRuntime().addShutdownHook(new ShutdownThread());
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82 return theInstance;
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83 }
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84
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85 public static class ShutdownThread extends Thread {
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86
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87 @Override
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88 public void run() {
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89 VMExitsNative.compileMethods = false;
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90 if (C1XOptions.PrintMetrics) {
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91 C1XMetrics.print();
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92 }
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93 if (C1XOptions.PrintTimers) {
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94 C1XTimers.print();
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95 }
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96 if (PrintGCStats) {
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97 printGCStats();
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98 }
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99 }
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100 }
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101
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102 public static void printGCStats() {
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103 long totalGarbageCollections = 0;
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104 long garbageCollectionTime = 0;
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105
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106 for (GarbageCollectorMXBean gc : ManagementFactory.getGarbageCollectorMXBeans()) {
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107 long count = gc.getCollectionCount();
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108 if (count >= 0) {
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109 totalGarbageCollections += count;
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110 }
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111
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112 long time = gc.getCollectionTime();
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113 if (time >= 0) {
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114 garbageCollectionTime += time;
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115 }
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116 }
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117
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118 System.out.println("Total Garbage Collections: " + totalGarbageCollections);
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119 System.out.println("Total Garbage Collection Time (ms): " + garbageCollectionTime);
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120 }
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121
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122 private final VMEntries vmEntries;
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123 private final VMExits vmExits;
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124 private C1XCompiler compiler;
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125
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126 private final HotSpotRuntime runtime;
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127 private final CiTarget target;
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128 private final RiXirGenerator generator;
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129 private final RiRegisterConfig registerConfig;
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130
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131 private CompilerImpl(VMEntries entries) {
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132
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133 // initialize VMEntries
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134 if (entries == null) {
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135 entries = new VMEntriesNative();
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136 }
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137
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138 // initialize VMExits
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139 VMExits exits = new VMExitsNative(this);
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140
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141 // logging, etc.
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142 if (CountingProxy.ENABLED) {
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143 exits = CountingProxy.getProxy(VMExits.class, exits);
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144 entries = CountingProxy.getProxy(VMEntries.class, entries);
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145 }
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146 if (Logger.ENABLED) {
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147 exits = LoggingProxy.getProxy(VMExits.class, exits);
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148 entries = LoggingProxy.getProxy(VMEntries.class, entries);
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149 }
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150
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151 // set the final fields
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152 vmEntries = entries;
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153 vmExits = exits;
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154
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155 // initialize compiler and C1XOptions
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156 HotSpotVMConfig config = vmEntries.getConfiguration();
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157 config.check();
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158
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159 // these options are important - c1x4hotspot will not generate correct code without them
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160 C1XOptions.GenSpecialDivChecks = true;
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161 C1XOptions.NullCheckUniquePc = true;
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162 C1XOptions.InvokeSnippetAfterArguments = true;
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163 C1XOptions.StackShadowPages = config.stackShadowPages;
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164
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165 runtime = new HotSpotRuntime(config, this);
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166 registerConfig = runtime.globalStubRegConfig;
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167
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168 final int wordSize = 8;
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169 final int stackFrameAlignment = 16;
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170 target = new HotSpotTarget(new AMD64(), true, wordSize, stackFrameAlignment, config.vmPageSize, wordSize, true);
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171
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172 RiXirGenerator generator = new HotSpotXirGenerator(config, target, registerConfig, this);
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173 if (Logger.ENABLED) {
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174 this.generator = LoggingProxy.getProxy(RiXirGenerator.class, generator);
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175 } else {
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176 this.generator = generator;
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177 }
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178
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179 }
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180
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181 @Override
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182 public C1XCompiler getCompiler() {
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183 if (compiler == null) {
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184 compiler = new C1XCompiler(runtime, target, generator, registerConfig);
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185 }
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186 return compiler;
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187 }
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188
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189 @Override
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190 public VMEntries getVMEntries() {
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191 return vmEntries;
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192 }
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193
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194 @Override
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195 public VMExits getVMExits() {
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196 return vmExits;
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197 }
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198
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199 }