1 /*
2  * Copyright (c) 2009, 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 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 compiler.c2.Test6866651
30  */
31 
32 package compiler.c2;
33 
34 public class Test6866651 {
35 
sum()36     static int sum() {
37         int s = 0;
38         for (int x = 1, y = 0; x != 0; x++, y--) {
39             s ^= y;
40         }
41         return s;
42     }
43 
main(final String[] args)44     public static void main(final String[] args) {
45         for (int k = 0; k < 2; k++) {
46             System.err.println(String.valueOf(sum()));
47         }
48     }
49 }
50