Wed, 26 Jan 2011 13:45:25 -0800
7013272: Automatically generate info about how compiler resource keys are used
Reviewed-by: mcimadamore
1 /*
2 * Copyright (c) 1999, 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 */
24 /*
25 * @test
26 * @bug 4057345 4120016 4120014
27 * @summary try-catch 2: Verify that overzealous dead-code elimination no
28 * longer removes live code.
29 * @author dps
30 *
31 * @run clean DeadCode2
32 * @run compile -O DeadCode2.java
33 * @run main DeadCode2
34 */
36 class cls
37 {
38 int [] ai = null;
39 }
41 public class DeadCode2 extends cls
42 {
43 int [] bi = null;
45 static int[] func() { return (int[])null; }
47 public static void main(String argv[]) {
48 int [] ci = null;
49 int m = 0;
50 int errcnt = 0;
52 try { int i = func()[m = 7]; }
53 catch(Exception e) { System.out.println(e + " found "); errcnt++; }
54 try { DeadCode2 ox = new DeadCode2(); int i = ox.ai[m = 7]; }
55 catch(Exception e) { System.out.println(e + " found "); errcnt++; }
56 try { DeadCode2 ox = new DeadCode2(); int i = ox.bi[m = 7]; }
57 catch(Exception e) { System.out.println(e + " found "); errcnt++; }
58 try { int i = ci[m = 7]; }
59 catch(Exception e) { System.out.println(e + " found "); errcnt++; }
60 try { int i = ((int[])null)[0]; }
61 catch(Exception e) { System.out.println(e + " found "); errcnt++; }
63 if (errcnt != 5)
64 throw new RuntimeException("live code accidentally removed");
65 }
66 }