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annotate graal/GraalCompiler/src/com/sun/c1x/debug/GraphvizPrinterObserver.java @ 2799:e1dad0edd57a

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first part of loop reworking
author Lukas Stadler <lukas.stadler@jku.at>
date Fri, 27 May 2011 17:48:28 +0200
parents 79590d6b4a7c
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.util.regex.*;
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27
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28 import com.oracle.graal.graph.*;
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29 import com.oracle.graal.graph.vis.*;
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30 import com.sun.c1x.*;
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31 import com.sun.c1x.ir.*;
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32 import com.sun.c1x.observer.*;
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33 import com.sun.c1x.value.*;
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34
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35 /**
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36 * Observes compilation events and uses {@link GraphvizPrinter} to produce a control flow graph in the DOT language
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37 * which can be visualized with Graphviz.
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38 *
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39 * @author Peter Hofer
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40 */
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41 public class GraphvizPrinterObserver implements CompilationObserver {
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42
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43 private static final Pattern INVALID_CHAR = Pattern.compile("[^A-Za-z0-9_.-]");
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44
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45 private final boolean pdf;
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46 private int n;
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47
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48 public GraphvizPrinterObserver(boolean pdf) {
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49 this.pdf = pdf;
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50 }
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51
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52 public void compilationStarted(CompilationEvent event) {
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53 n = 0;
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54 }
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55
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56 public void compilationFinished(CompilationEvent event) {
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57 }
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58
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59 public void compilationEvent(CompilationEvent event) {
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60 if (event.getStartBlock() != null && !TTY.isSuppressed()) {
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61 Graph graph = event.getStartBlock().graph();
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62
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63 String name = event.getMethod().holder().name();
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64 name = name.substring(1, name.length() - 1).replace('/', '.');
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65 name = name + "." + event.getMethod().name();
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66
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67 String filename = name + "_" + (n++) + "_" + event.getLabel();
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68 filename = INVALID_CHAR.matcher(filename).replaceAll("_");
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69
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70 OutputStream out = null;
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71 try {
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72 if (pdf) {
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73 ByteArrayOutputStream buffer = new ByteArrayOutputStream();
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74 printGraph(graph, name, buffer);
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75
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76 out = new FileOutputStream(filename + ".pdf");
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77 GraphvizRunner.process(GraphvizRunner.DOT_LAYOUT, new ByteArrayInputStream(buffer.toByteArray()), out, "pdf");
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78 } else {
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79 out = new FileOutputStream(filename + ".gv");
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80
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81 printGraph(graph, name, out);
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82 }
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83 } catch (IOException e) {
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84 e.printStackTrace();
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85 } finally {
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86 if (out != null) {
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87 try {
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88 out.close();
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89 } catch (IOException e) {
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90 }
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91 }
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92 }
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93 }
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94 }
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95
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96 private static void printGraph(Graph graph, String name, OutputStream buffer) {
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97 GraphvizPrinter printer = new GraphvizPrinter(buffer);
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98 if (C1XOptions.OmitDOTFrameStates) {
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99 printer.addOmittedClass(FrameState.class);
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100 }
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101 printer.addClassColor(StartNode.class, "snow3");
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102 printer.addClassColor(EndNode.class, "snow3");
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103 printer.addClassColor(LoopBegin.class, "skyblue");
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104 printer.addClassColor(LoopEnd.class, "skyblue3");
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105 printer.addClassColor(Unwind.class, "red");
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106 printer.addClassColor(Return.class, "indianred1");
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107 printer.begin(name);
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108 printer.print(graph, true);
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109 printer.end();
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110 }
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111 }