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comparison graal/GraalCompiler/src/com/sun/c1x/debug/GraphvizPrinterObserver.java @ 2648:d456b679b6de

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Add option PrintDOTGraphToFile to produce Graphviz graphs in the DOT language for compiled methods that match PrintFilter
author Peter Hofer <peter.hofer@jku.at>
date Wed, 11 May 2011 14:45:32 +0200
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children 6ab73784566a
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2647:0bf54306c139 2648:d456b679b6de
1 /*
2 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23 package com.sun.c1x.debug;
24
25 import java.io.*;
26
27 import com.oracle.graal.graph.*;
28 import com.oracle.graal.graph.vis.*;
29 import com.sun.c1x.observer.*;
30
31 /**
32 * Observes compilation events and uses {@link GraphvizPrinter} to produce a control flow graph in the DOT language
33 * which can be visualized with Graphviz.
34 *
35 * @author Peter Hofer
36 */
37 public class GraphvizPrinterObserver implements CompilationObserver {
38
39 private int n;
40
41 public GraphvizPrinterObserver() {
42 }
43
44 public void compilationStarted(CompilationEvent event) {
45 n = 0;
46 }
47
48 public void compilationFinished(CompilationEvent event) {
49 }
50
51 public void compilationEvent(CompilationEvent event) {
52 if (event.getStartBlock() != null && !TTY.isSuppressed()) {
53 Graph graph = event.getStartBlock().graph();
54
55 String name = event.getMethod().holder().name();
56 name = name.substring(1, name.length() - 1).replace('/', '.');
57 name = name + "." + event.getMethod().name();
58 try {
59 FileOutputStream stream = new FileOutputStream(name + "_" + n + "_" + event.getLabel() + ".gv");
60 n++;
61
62 GraphvizPrinter printer = new GraphvizPrinter(stream);
63 printer.begin(name);
64 printer.print(graph, true);
65 printer.end();
66
67 stream.close();
68 } catch (IOException e) {
69 e.printStackTrace();
70 }
71 }
72 }
73 }