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annotate graal/GraalCompiler/src/com/sun/c1x/debug/IdealGraphPrinter.java @ 2684:ed36daed4c43

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Add new option PrintIdealGraphToFile and another printer/observer pair to generate a graph representation that can be visualized and inspected with the ideal graph visualizer
author Peter Hofer <peter.hofer@jku.at>
date Mon, 16 May 2011 17:31:53 +0200
parents
children 79590d6b4a7c
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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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27
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28 import com.oracle.graal.graph.*;
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29
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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 * Starts a new graph document containing a single group of graphs with the given name, short name and byte code
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67 * index (BCI) as properties.
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68 */
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69 public void begin(String name, String shortName, int bci) {
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70 stream.println("<graphDocument><group>");
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71 stream.printf(" <properties><p name='name'>%s</p></properties>%n", escape(name));
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72 stream.printf(" <method name='%s' shortName='%s' bci='%d'/>%n", escape(name), escape(shortName), bci);
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73 }
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74
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75 /**
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76 * Finishes the graph document.
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77 */
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78 public void end() {
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79 stream.println("</group></graphDocument>");
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80 stream.flush();
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81 }
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82
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83 /**
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84 * Prints an entire {@link Graph} with the specified title, optionally using short names for nodes.
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85 */
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86 public void print(Graph graph, String title, boolean shortNames) {
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87 stream.printf(" <graph name='%s'>%n", escape(title));
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88
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89 stream.println(" <nodes>");
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90 List<Edge> edges = printNodes(graph.getNodes(), shortNames);
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91 stream.println(" </nodes>");
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92
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93 stream.println(" <edges>");
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94 for (Edge edge : edges) {
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95 printEdge(edge);
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96 }
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97 stream.println(" </edges>");
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98
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99 stream.println(" </graph>");
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100 }
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101
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102 private List<Edge> printNodes(Collection<Node> nodes, boolean shortNames) {
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103 ArrayList<Edge> edges = new ArrayList<Edge>();
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104
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105 for (Node node : nodes) {
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106 if (node == Node.Null || omittedClasses.contains(node)) {
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107 continue;
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108 }
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109
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110 String name;
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111 if (shortNames) {
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112 name = node.shortName();
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113 } else {
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114 name = node.toString();
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115 }
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116
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117 stream.printf(" <node id='%d'><properties>", node.id());
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118 stream.printf("<p name='idx'>%d</p>", node.id());
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119 stream.printf("<p name='name'>%s</p>", escape(name));
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120 stream.println("</properties></node>");
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121
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122 int index = 0;
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123 for (Node predecessor : node.predecessors()) {
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124 if (predecessor != Node.Null && !omittedClasses.contains(predecessor.getClass())) {
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125 edges.add(new Edge(predecessor.id(), node.id(), index));
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126 }
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127 index++;
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128 }
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129 for (Node input : node.inputs()) {
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130 if (input != Node.Null && !omittedClasses.contains(input.getClass())) {
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131 edges.add(new Edge(input.id(), node.id(), index));
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132 }
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133 index++;
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134 }
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135 }
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136
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137 return edges;
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138 }
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139
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140 private void printEdge(Edge edge) {
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141 stream.printf(" <edge from='%d' to='%d' index='%d'/>%n", edge.from, edge.to, edge.index);
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142 }
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143
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144 private String escape(String s) {
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145 s = s.replace("&", "&amp;");
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146 s = s.replace("<", "&lt;");
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147 s = s.replace(">", "&gt;");
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148 s = s.replace("\"", "&quot;");
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149 s = s.replace("'", "&apos;");
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150 return s;
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151 }
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152 }