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comparison graal/GraalCompiler/src/com/sun/c1x/debug/CFGPrinterObserver.java @ 2509:16b9a8b5ad39

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Renamings Runtime=>GraalRuntime and Compiler=>GraalCompiler
author Thomas Wuerthinger <thomas@wuerthinger.net>
date Wed, 27 Apr 2011 11:50:44 +0200
parents graal/Compiler/src/com/sun/c1x/debug/CFGPrinterObserver.java@9ec15d6914ca
children bda5972a40a5
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2508:fea94949e0a2 2509:16b9a8b5ad39
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.sun.c1x.*;
28 import com.sun.c1x.observer.*;
29 import com.sun.cri.ri.*;
30
31 /**
32 * Observes compilation events and uses {@link CFGPrinter} to produce a control flow graph for the <a
33 * href="https://c1visualizer.dev.java.net/">C1 Visualizer</a>.
34 *
35 * @author Peter Hofer
36 */
37 public class CFGPrinterObserver implements CompilationObserver {
38
39 private C1XCompilation currentCompilation;
40 private CFGPrinter cfgPrinter;
41 private ByteArrayOutputStream buffer = null;
42
43 public CFGPrinterObserver() {
44 }
45
46 @Override
47 public void compilationStarted(CompilationEvent event) {
48 // Supports only one compilation at the same time
49 assert currentCompilation == null;
50
51 currentCompilation = event.getCompilation();
52 if (buffer == null) {
53 buffer = new ByteArrayOutputStream();
54 }
55 cfgPrinter = new CFGPrinter(buffer, currentCompilation.target);
56 cfgPrinter.printCompilation(currentCompilation.method);
57 }
58
59 @Override
60 public void compilationEvent(CompilationEvent event) {
61 assert currentCompilation == event.getCompilation();
62
63 String label = event.getLabel();
64
65 if (event.getAllocator() != null && event.getIntervals() != null) {
66 cfgPrinter.printIntervals(event.getAllocator(), event.getIntervals(), label);
67 }
68
69 boolean cfgprinted = false;
70
71 if (event.getBlockMap() != null && event.getCodeSize() >= 0) {
72 cfgPrinter.printCFG(event.getMethod(), event.getBlockMap(), event.getCodeSize(), label, event.isHIRValid(), event.isLIRValid());
73 cfgprinted = true;
74 }
75
76 if (event.getStartBlock() != null) {
77 cfgPrinter.printCFG(event.getStartBlock(), label, event.isHIRValid(), event.isLIRValid());
78 cfgprinted = true;
79 }
80
81 if (event.getTargetMethod() != null) {
82 if (cfgprinted) {
83 // Avoid duplicate "cfg" section
84 label = null;
85 }
86
87 RiRuntime runtime = event.getCompilation().runtime;
88 cfgPrinter.printMachineCode(runtime.disassemble(event.getTargetMethod()), label);
89 }
90 }
91
92 @Override
93 public void compilationFinished(CompilationEvent event) {
94 assert currentCompilation == event.getCompilation();
95
96 cfgPrinter.flush();
97
98 OutputStream cfgFileStream = CFGPrinter.cfgFileStream();
99 if (cfgFileStream != null) {
100 synchronized (cfgFileStream) {
101 try {
102 cfgFileStream.write(buffer.toByteArray());
103 } catch (IOException e) {
104 TTY.println("WARNING: Error writing CFGPrinter output for %s to disk: %s", event.getMethod(), e);
105 }
106 }
107 }
108
109 buffer.reset();
110 cfgPrinter = null;
111 currentCompilation = null;
112 }
113 }