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annotate graal/GraalCompiler/src/com/sun/c1x/debug/IdealGraphPrinter.java @ 2723:173067211acb

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Removed two more BlockBegin flags.
author Thomas Wuerthinger <thomas@wuerthinger.net>
date Thu, 19 May 2011 16:44:05 +0200
parents b179be22a3db
children 39a9d62e4c60
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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.util.*;
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28 import com.oracle.graal.graph.*;
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30 /**
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31 * Generates a representation of {@link Graph Graphs} that can be visualized and inspected with the <a
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32 * href="http://kenai.com/projects/igv">Ideal Graph Visualizer</a>.
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33 */
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34 public class IdealGraphPrinter {
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35
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36 private static class Edge {
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37 final int from;
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38 final int to;
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39 final int index;
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40
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41 Edge(int from, int to, int index) {
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42 this.from = from;
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43 this.to = to;
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44 this.index = index;
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45 }
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46 }
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47
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48 private final HashSet<Class<?>> omittedClasses = new HashSet<Class<?>>();
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49 private final PrintStream stream;
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50
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51 /**
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52 * Creates a new {@link IdealGraphPrinter} that writes to the specified output stream.
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53 */
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54 public IdealGraphPrinter(OutputStream stream) {
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55 this.stream = new PrintStream(stream);
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56 }
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57
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58 /**
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59 * Adds a node class that is omitted in the output.
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60 */
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61 public void addOmittedClass(Class<?> clazz) {
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62 omittedClasses.add(clazz);
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63 }
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64
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65 /**
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66 * Flushes any buffered output.
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67 */
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68 public void flush() {
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69 stream.flush();
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70 }
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71
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72 /**
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73 * Starts a new graph document.
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74 */
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75 public void begin() {
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76 stream.println("<graphDocument>");
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77 }
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78
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79 /**
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80 * Starts a new group of graphs with the given name, short name and method byte code index (BCI) as properties.
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81 */
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82 public void beginGroup(String name, String shortName, int bci) {
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83 stream.println("<group>");
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84 stream.printf(" <properties><p name='name'>%s</p></properties>%n", escape(name));
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85 stream.printf(" <method name='%s' shortName='%s' bci='%d'/>%n", escape(name), escape(shortName), bci);
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86 }
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87
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88 /**
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89 * Ends the current group.
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90 */
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91 public void endGroup() {
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92 stream.println("</group>");
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93 }
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94
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95 /**
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96 * Finishes the graph document and flushes the output stream.
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97 */
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98 public void end() {
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99 stream.println("</graphDocument>");
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100 flush();
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101 }
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102
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103 /**
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104 * Prints an entire {@link Graph} with the specified title, optionally using short names for nodes.
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105 */
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106 public void print(Graph graph, String title, boolean shortNames) {
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107 stream.printf(" <graph name='%s'>%n", escape(title));
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108
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109 stream.println(" <nodes>");
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110 List<Edge> edges = printNodes(graph.getNodes(), shortNames);
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111 stream.println(" </nodes>");
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112
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113 stream.println(" <edges>");
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114 for (Edge edge : edges) {
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115 printEdge(edge);
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116 }
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117 stream.println(" </edges>");
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118
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119 stream.println(" </graph>");
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120 }
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121
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122 private List<Edge> printNodes(Collection<Node> nodes, boolean shortNames) {
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123 ArrayList<Edge> edges = new ArrayList<Edge>();
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124
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125 for (Node node : nodes) {
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126 if (node == Node.Null || omittedClasses.contains(node)) {
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127 continue;
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128 }
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129
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130 String name;
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131 if (shortNames) {
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132 name = node.shortName();
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133 } else {
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134 name = node.toString();
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135 }
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136
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137 stream.printf(" <node id='%d'><properties>", node.id());
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138 stream.printf("<p name='idx'>%d</p>", node.id());
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139 stream.printf("<p name='name'>%s</p>", escape(name));
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140 stream.println("</properties></node>");
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141
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142 int index = 0;
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143 for (Node predecessor : node.predecessors()) {
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144 if (predecessor != Node.Null && !omittedClasses.contains(predecessor.getClass())) {
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145 edges.add(new Edge(predecessor.id(), node.id(), index));
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146 }
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147 index++;
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148 }
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149 for (Node input : node.inputs()) {
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150 if (input != Node.Null && !omittedClasses.contains(input.getClass())) {
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151 edges.add(new Edge(input.id(), node.id(), index));
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152 }
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153 index++;
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154 }
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155 }
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156
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157 return edges;
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158 }
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159
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160 private void printEdge(Edge edge) {
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161 stream.printf(" <edge from='%d' to='%d' index='%d'/>%n", edge.from, edge.to, edge.index);
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162 }
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163
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164 private String escape(String s) {
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165 s = s.replace("&", "&amp;");
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166 s = s.replace("<", "&lt;");
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167 s = s.replace(">", "&gt;");
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168 s = s.replace("\"", "&quot;");
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169 s = s.replace("'", "&apos;");
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170 return s;
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171 }
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172 }