test/tools/javac/BadOptimization/DeadCode4.java

changeset 0
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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 */
23
24 /*
25 * @test
26 * @bug 4057345 4120016 4120014
27 * @summary static init: Verify that overzealous dead-code elimination no
28 * longer removes live code.
29 * @author dps
30 *
31 * @run clean DeadCode4
32 * @run compile -O DeadCode4.java
33 * @run main DeadCode4
34 */
35
36 class cls
37 {
38 static int arr[];
39
40 static {
41 arr = new int[2];
42 arr[0] = 0;
43 arr[1] = 2;
44 }
45 }
46
47 public class DeadCode4
48 {
49 final int x = 9;
50
51 private final void fun1() {
52 try {
53 int i = cls.arr[3];
54 // if we got here, then there must be a problem
55 throw new RuntimeException("accidental removal of live code");
56 } catch (ArrayIndexOutOfBoundsException e) {
57 System.out.println("ArrayIndexOutOfBoundsException correctly thrown");
58 e.printStackTrace();
59 }
60 }
61
62 public static void main( String[] args )
63 {
64 DeadCode4 r1 = new DeadCode4();
65 r1.fun1();
66 }
67 }

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