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comparison test/compiler/6866651/Test.java @ 927:662f330d7275

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6866651: Regression: simple int sum crashes jvm (build 1.6.0_14-b08 and 1.7.0-ea-b59) Summary: delay dead code elimination in set_req_X to make it safe Reviewed-by: kvn, never
author cfang
date Mon, 17 Aug 2009 12:11:06 -0700
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children c18cbe5936b8
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926:c8e2135f7e30 927:662f330d7275
1 /*
2 * Copyright 2009 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 */
23
24 /**
25 * @test
26 * @bug 6866651
27 * @summary delay dead node elimination in set_req_X to prevent killing the current node when it is in use
28 *
29 * @run main Test
30 */
31
32 public class Test {
33
34 static int sum() {
35 int s = 0;
36 for (int x = 1, y = 0; x != 0; x++, y--) {
37 s ^= y;
38 }
39 return s;
40 }
41
42 public static void main(final String[] args) {
43 for (int k = 0; k < 2; k++) {
44 System.err.println(String.valueOf(sum()));
45 }
46 }
47 }