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annotate c1x4hotspotsrc/HotSpotVM/src/com/sun/hotspot/c1x/CompilerImpl.java @ 2285:762de4b26788

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turn Compiler and HotSpotTypeResolved into interfaces
author Lukas Stadler <lukas.stadler@jku.at>
date Fri, 08 Apr 2011 13:43:05 +0200
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children 8c426c2891c8
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762de4b26788 turn Compiler and HotSpotTypeResolved into interfaces
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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.lang.reflect.Proxy;
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26 import java.net.*;
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27
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28 import com.sun.c1x.*;
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29 import com.sun.c1x.target.amd64.*;
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30 import com.sun.cri.xir.*;
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31 import com.sun.hotspot.c1x.logging.*;
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32 import com.sun.hotspot.c1x.server.*;
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33 import com.sun.hotspot.c1x.server.ReplacingStreams.ReplacingInputStream;
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34 import com.sun.hotspot.c1x.server.ReplacingStreams.ReplacingOutputStream;
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35
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36 /**
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37 * Singleton class holding the instance of the C1XCompiler.
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38 *
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39 * @author Thomas Wuerthinger, Lukas Stadler
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40 */
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41 public final class CompilerImpl implements Compiler {
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42
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43 private static Compiler theInstance;
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44 private static boolean PrintGCStats = false;
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45
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46 private final VMEntries vmEntries;
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47 private final VMExits vmExits;
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48
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49 private final C1XCompiler compiler;
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50
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51 public static Compiler getInstance() {
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52 if (theInstance == null) {
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53 theInstance = new CompilerImpl(null);
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54 Runtime.getRuntime().addShutdownHook(new ShutdownThread());
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55 }
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56 return theInstance;
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57 }
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58
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59 public static class ShutdownThread extends Thread {
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60
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61 @Override
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62 public void run() {
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63 VMExitsNative.compileMethods = false;
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64 if (C1XOptions.PrintMetrics) {
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65 C1XMetrics.print();
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66 }
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67 if (C1XOptions.PrintTimers) {
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68 C1XTimers.print();
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69 }
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70 if (PrintGCStats) {
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71 printGCStats();
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72 }
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73 }
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74 }
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75
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76 public static void printGCStats() {
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77 long totalGarbageCollections = 0;
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78 long garbageCollectionTime = 0;
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79
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80 for (GarbageCollectorMXBean gc : ManagementFactory.getGarbageCollectorMXBeans()) {
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81 long count = gc.getCollectionCount();
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82 if (count >= 0) {
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83 totalGarbageCollections += count;
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84 }
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85
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86 long time = gc.getCollectionTime();
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87 if (time >= 0) {
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88 garbageCollectionTime += time;
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89 }
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90 }
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91
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92 System.out.println("Total Garbage Collections: " + totalGarbageCollections);
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93 System.out.println("Total Garbage Collection Time (ms): " + garbageCollectionTime);
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94 }
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95
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96 public static Compiler initializeServer(VMEntries entries) {
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97 assert theInstance == null;
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98 theInstance = new CompilerImpl(entries);
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99 return theInstance;
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100 }
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101
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102 @Override
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103 public VMEntries getVMEntries() {
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104 return vmEntries;
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105 }
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106
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107 @Override
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108 public VMExits getVMExits() {
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109 return vmExits;
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110 }
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111
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112 private CompilerImpl(VMEntries entries) {
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113 // remote compilation (will not create a C1XCompiler)
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114 String remote = System.getProperty("c1x.remote");
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115 if (remote != null) {
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116 try {
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117 System.out.println("C1X compiler started in client/server mode, server: " + remote);
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118 Socket socket = new Socket(remote, 1199);
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119 ReplacingStreams streams = new ReplacingStreams();
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120
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121 ReplacingOutputStream output = streams.new ReplacingOutputStream(new BufferedOutputStream(socket.getOutputStream()));
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122 // required, because creating an ObjectOutputStream writes a header, but doesn't flush the stream
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123 output.flush();
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124 ReplacingInputStream input = streams.new ReplacingInputStream(new BufferedInputStream(socket.getInputStream()));
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125 input.setCompiler(this);
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126
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127 InvocationSocket invocation = new InvocationSocket(output, input);
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128 vmEntries = new VMEntriesNative();
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129 vmExits = (VMExits) Proxy.newProxyInstance(VMExits.class.getClassLoader(), new Class<?>[] { VMExits.class}, invocation);
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130 invocation.setDelegate(vmEntries);
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131 compiler = null;
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132 return;
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133 } catch (IOException t) {
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134 System.out.println("Connection to compilation server FAILED.");
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135 throw new RuntimeException(t);
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136 }
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137 }
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138
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139 // initialize VMEntries
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140 if (entries == null)
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141 entries = new VMEntriesNative();
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142
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143 // initialize VMExits
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144 VMExits exits = new VMExitsNative(this);
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145
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146 // logging, etc.
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147 if (CountingProxy.ENABLED) {
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148 exits = CountingProxy.getProxy(VMExits.class, exits);
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149 entries = CountingProxy.getProxy(VMEntries.class, entries);
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150 }
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151 if (Logger.ENABLED) {
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152 exits = LoggingProxy.getProxy(VMExits.class, exits);
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153 entries = LoggingProxy.getProxy(VMEntries.class, entries);
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154 }
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155
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156 // set the final fields
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157 vmEntries = entries;
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158 vmExits = exits;
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159
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160 // initialize compiler and C1XOptions
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161 HotSpotVMConfig config = vmEntries.getConfiguration();
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162 config.check();
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163
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164 // these options are important - c1x4hotspot will not generate correct code without them
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165 C1XOptions.GenSpecialDivChecks = true;
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166 C1XOptions.NullCheckUniquePc = true;
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167 C1XOptions.InvokeSnippetAfterArguments = true;
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168 C1XOptions.StackShadowPages = config.stackShadowPages;
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169
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170 HotSpotRuntime runtime = new HotSpotRuntime(config, this);
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171 HotSpotRegisterConfig registerConfig = runtime.globalStubRegConfig;
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172
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173 final int wordSize = 8;
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174 final int stackFrameAlignment = 16;
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175 HotSpotTarget target = new HotSpotTarget(new AMD64(), true, wordSize, stackFrameAlignment, config.vmPageSize, wordSize, true);
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176
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177 RiXirGenerator generator = new HotSpotXirGenerator(config, target, registerConfig, this);
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178 if (Logger.ENABLED) {
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179 generator = LoggingProxy.getProxy(RiXirGenerator.class, generator);
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180 }
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181 compiler = new C1XCompiler(runtime, target, generator, registerConfig);
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182 }
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183
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184 @Override
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185 public C1XCompiler getCompiler() {
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186 return compiler;
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187 }
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188
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189 }