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annotate graal/com.oracle.max.criutils/src/com/oracle/max/criutils/CompilationPrinter.java @ 4185:4af146831ed6

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author Doug Simon <doug.simon@oracle.com>
date Tue, 03 Jan 2012 12:56:55 +0100
parents 319860ae697a
children aaac4894175c
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1 /*
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2 * Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.oracle.max.criutils;
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24
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25 import java.io.*;
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26
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27 import com.sun.cri.ci.*;
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28 import com.sun.cri.ri.*;
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29
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30 /**
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31 * Utility for printing compilation related data structures at various compilation phases.
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32 * The output format is such that it can then be fed to the
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33 * <a href="https://c1visualizer.dev.java.net/">C1 Visualizer</a>.
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34 */
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35 public class CompilationPrinter {
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36 public static final String COLUMN_END = " <|@";
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37 public static final String HOVER_START = "<@";
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38 public static final String HOVER_SEP = "|@";
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39 public static final String HOVER_END = ">@";
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40
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41 private static OutputStream globalOut;
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42
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43 /**
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44 * Gets a global output stream on a file in the current working directory.
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45 * This stream is first opened if necessary. The name of the file
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46 * is {@code "compilations-" + System.currentTimeMillis() + ".cfg"}.
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47 *
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48 * @return the global output stream or {@code null} if there was an error opening the file for writing
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49 */
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50 public static synchronized OutputStream globalOut() {
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51 if (globalOut == null) {
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52 File file = new File("compilations-" + System.currentTimeMillis() + ".cfg");
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53 try {
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54 globalOut = new FileOutputStream(file);
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55 } catch (FileNotFoundException e) {
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56 TTY.println("WARNING: Could not open " + file.getAbsolutePath());
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57 }
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58 }
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59 return globalOut;
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60 }
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61
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62 protected final LogStream out;
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63
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64 /**
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65 * Creates a control flow graph printer.
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66 *
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67 * @param os where the output generated via this printer will be sent
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68 */
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69 public CompilationPrinter(OutputStream os) {
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70 out = new LogStream(os);
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71 }
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72
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73 /**
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74 * Flushes all buffered output to the underlying output stream.
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75 */
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76 public void flush() {
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77 out.flush();
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78 }
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79
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80 protected void begin(String string) {
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81 out.println("begin_" + string);
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82 out.adjustIndentation(2);
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83 }
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84
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85 protected void end(String string) {
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86 out.adjustIndentation(-2);
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87 out.println("end_" + string);
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88 }
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89
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90 /**
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91 * Prints a compilation timestamp for a given method.
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92 *
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93 * @param method the method for which a timestamp will be printed
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94 */
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95 public void printCompilation(RiMethod method) {
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96 begin("compilation");
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97 out.print("name \" ").print(CiUtil.format("%H::%n", method)).println('"');
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98 out.print("method \"").print(CiUtil.format("%f %r %H.%n(%p)", method)).println('"');
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99 out.print("date ").println(System.currentTimeMillis());
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100 end("compilation");
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101 }
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102
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103 /**
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104 * Formats a given {@linkplain FrameState JVM frame state} as a multi line string.
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105 */
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106 protected String debugInfoToString(CiCodePos codePos, CiBitMap registerRefMap, CiBitMap frameRefMap, CiArchitecture arch) {
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107 StringBuilder sb = new StringBuilder();
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108
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109 if (registerRefMap != null) {
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110 sb.append("reg-ref-map:");
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111 for (int reg = registerRefMap.nextSetBit(0); reg >= 0; reg = registerRefMap.nextSetBit(reg + 1)) {
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112 sb.append(' ').append(arch == null ? "r" + reg : arch.registers[reg]);
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113 }
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114 sb.append("\n");
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115 }
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116
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117 if (frameRefMap != null) {
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118 sb.append("frame-ref-map:");
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119 for (int reg = frameRefMap.nextSetBit(0); reg >= 0; reg = frameRefMap.nextSetBit(reg + 1)) {
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120 sb.append(' ').append("s").append(reg);
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121 }
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122 sb.append("\n");
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123 }
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124
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125 if (codePos != null) {
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126 CiCodePos curCodePos = codePos;
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127 do {
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128 sb.append(CiUtil.toLocation(curCodePos.method, curCodePos.bci));
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129 sb.append('\n');
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130 if (curCodePos instanceof CiFrame) {
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131 CiFrame frame = (CiFrame) curCodePos;
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132 if (frame.numStack > 0) {
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133 sb.append("stack: ");
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134 for (int i = 0; i < frame.numStack; i++) {
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135 sb.append(valueToString(frame.getStackValue(i))).append(' ');
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136 }
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137 sb.append("\n");
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138 }
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139
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140 if (frame.numLocks > 0) {
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141 sb.append("locks: ");
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142 for (int i = 0; i < frame.numLocks; ++i) {
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143 sb.append(valueToString(frame.getLockValue(i))).append(' ');
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144 }
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145 sb.append("\n");
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146 }
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147
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148 sb.append("locals: ");
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149 for (int i = 0; i < frame.numLocals; i++) {
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150 sb.append(valueToString(frame.getLocalValue(i))).append(' ');
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151 }
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152 sb.append("\n");
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153 }
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154 curCodePos = curCodePos.caller;
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155 } while (curCodePos != null);
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156 }
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157 return sb.toString();
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158 }
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159
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160 protected String valueToString(CiValue value) {
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161 if (value == null) {
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162 return "-";
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163 }
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164 return value.toString();
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165 }
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166
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167 public void printMachineCode(String code, String label) {
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168 if (code.length() == 0) {
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169 return;
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170 }
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171 if (label != null) {
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172 begin("cfg");
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173 out.print("name \"").print(label).println('"');
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174 end("cfg");
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175 }
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176 begin("nmethod");
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177 out.print(code);
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178 out.println(" <|@");
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179 end("nmethod");
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180 }
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181
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182 public void printBytecodes(String code) {
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183 if (code.length() == 0) {
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184 return;
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185 }
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186 begin("bytecodes");
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187 out.print(code);
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188 out.println(" <|@");
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189 end("bytecodes");
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190 }
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191 }