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annotate graal/GraalCompiler/src/com/sun/c1x/debug/IdealGraphPrinterObserver.java @ 2699:a51ef0310dad

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Document new IdealGraphPrinterObserver constructors
author Peter Hofer <peter.hofer@jku.at>
date Wed, 18 May 2011 15:17:17 +0200
parents b179be22a3db
children b003ea36fa12
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1 /*
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2 * Copyright (c) 2011, 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.sun.c1x.debug;
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24
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25 import java.io.*;
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26 import java.net.*;
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27 import java.util.regex.*;
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28
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29 import com.oracle.graal.graph.*;
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30 import com.sun.c1x.*;
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31 import com.sun.c1x.observer.*;
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32 import com.sun.c1x.value.*;
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33
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34 /**
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35 * Observes compilation events and uses {@link IdealGraphPrinter} to generate a graph representation that can be
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36 * inspected with the <a href="http://kenai.com/projects/igv">Ideal Graph Visualizer</a>.
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37 *
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38 * @author Peter Hofer
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39 */
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40 public class IdealGraphPrinterObserver implements CompilationObserver {
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41
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42 private static final Pattern INVALID_CHAR = Pattern.compile("[^A-Za-z0-9_.-]");
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43
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44 private final String host;
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45 private final int port;
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46
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47 private IdealGraphPrinter printer;
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48 private OutputStream stream;
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49 private Socket socket;
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50
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51 /**
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52 * Creates a new {@link IdealGraphPrinterObserver} that writes output to a file named after the compiled method.
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53 */
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54 public IdealGraphPrinterObserver() {
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55 this(null, -1);
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56 }
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57
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58 /**
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59 * Creates a new {@link IdealGraphPrinterObserver} that sends output to a remove IdealGraphVisualizer instance.
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60 */
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61 public IdealGraphPrinterObserver(String host, int port) {
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62 this.host = host;
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63 this.port = port;
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64 }
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65
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66 @Override
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67 public void compilationStarted(CompilationEvent event) {
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68 assert (stream == null && printer == null);
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69
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70 if (!TTY.isSuppressed()) {
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71 String name = event.getMethod().holder().name();
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72 name = name.substring(1, name.length() - 1).replace('/', '.');
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73 name = name + "." + event.getMethod().name();
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74
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75 if (host != null) {
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76 openNetworkPrinter(name);
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77 } else {
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78 openFilePrinter(name);
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79 }
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80 }
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81 }
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82
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83 private void openFilePrinter(String name) {
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84 String filename = name + ".igv.xml";
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85 filename = INVALID_CHAR.matcher(filename).replaceAll("_");
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86
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87 try {
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88 stream = new FileOutputStream(filename);
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89 printer = new IdealGraphPrinter(stream);
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90 if (C1XOptions.OmitDOTFrameStates) {
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91 printer.addOmittedClass(FrameState.class);
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92 }
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93 printer.begin();
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94 printer.beginGroup(name, name, -1);
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95 } catch (IOException e) {
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96 e.printStackTrace();
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97 }
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98 }
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99
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100 private void openNetworkPrinter(String name) {
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101 try {
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102 socket = new Socket(host, port);
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103 if (socket.getInputStream().read() == 'y') {
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104 stream = socket.getOutputStream();
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105 } else {
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106 // server currently does not accept any input
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107 socket.close();
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108 socket = null;
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109 return;
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110 }
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111
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112 printer = new IdealGraphPrinter(stream);
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113 if (C1XOptions.OmitDOTFrameStates) {
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114 printer.addOmittedClass(FrameState.class);
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115 }
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116 printer.begin();
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117 printer.beginGroup(name, name, -1);
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118 printer.flush();
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119 if (socket.getInputStream().read() != 'y') {
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120 // server declines input for this method
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121 socket.close();
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122 socket = null;
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123 stream = null;
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124 printer = null;
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125 }
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126 } catch (IOException e) {
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127 e.printStackTrace();
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128
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129 if (socket != null) {
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130 try {
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131 socket.close();
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132 } catch (IOException ioe) {
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133 }
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134 socket = null;
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135 }
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136 stream = null;
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137 printer = null;
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138 }
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139 }
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140
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141 @Override
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142 public void compilationEvent(CompilationEvent event) {
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143 if (printer != null && event.getStartBlock() != null) {
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144 Graph graph = event.getStartBlock().graph();
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145 printer.print(graph, event.getLabel(), true);
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146 }
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147 }
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148
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149 @Override
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150 public void compilationFinished(CompilationEvent event) {
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151 if (printer != null) {
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152 try {
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153 printer.endGroup();
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154 printer.end();
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155
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156 if (socket != null) {
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157 socket.close(); // also closes stream
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158 } else {
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159 stream.close();
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160 }
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161 } catch (IOException e) {
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162 e.printStackTrace();
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163 } finally {
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164 printer = null;
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165 stream = null;
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166 socket = null;
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167 }
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168 }
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169 }
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170
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171 }