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comparison test/compiler/8011706/Test8011706.java @ 9081:84ab5667f290

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8011706: specjvm2008 test xml.transform gets array bound exception with c1 Summary: loop invariant code motion may move load before store to the same field Reviewed-by: kvn
author roland
date Wed, 10 Apr 2013 09:52:49 +0200
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9080:b84fd7d73702 9081:84ab5667f290
1 /*
2 * Copyright (c) 2013, 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 8011706
27 * @summary loop invariant code motion may move load before store to the same field
28 * @run main/othervm -XX:-UseOnStackReplacement -XX:-BackgroundCompilation Test8011706
29 *
30 */
31
32 public class Test8011706 {
33 int[] array;
34
35 void m(boolean test, int[] array1, int[] array2) {
36 int i = 0;
37 if (test) {
38 array = array1;
39 } else {
40 array = array2;
41 }
42
43 while(true) {
44 int v = array[i];
45 i++;
46 if (i >= 10) return;
47 }
48 }
49
50 static public void main(String[] args) {
51 int[] new_array = new int[10];
52 Test8011706 ti = new Test8011706();
53 boolean failed = false;
54 try {
55 for (int i = 0; i < 10000; i++) {
56 ti.array = null;
57 ti.m(true, new_array, new_array);
58 }
59 } catch(NullPointerException ex) {
60 throw new RuntimeException("TEST FAILED", ex);
61 }
62 System.out.println("TEST PASSED");
63 }
64
65 }