1 /*
2  * Copyright (c) 2008, 2020, 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  *
27  * @summary converted from VM Testbase jit/t/t039.
28  * VM Testbase keywords: [jit, quick]
29  *
30  * @library /vmTestbase
31  *          /test/lib
32  * @run main/othervm jit.t.t039.t039
33  */
34 
35 package jit.t.t039;
36 
37 import nsk.share.TestFailure;
38 import nsk.share.GoldChecker;
39 
40 // opc_lreturn, opc_monitorenter, opc_monitorexit
41 
42 public class t039
43 {
44     public static final GoldChecker goldChecker = new GoldChecker( "t039" );
45 
46     private static long f0 = 0, f1 = 1;
47     private static Object x = new Object();
48 
nextFib()49     private static long nextFib()
50     {
51         long res;
52 
53         synchronized(x)
54         {
55             res = f0 + f1;
56             f0 = f1;
57             f1 = res;
58         }
59         return res;
60     }
61 
main(String argv[])62     public static void main(String argv[])
63     {
64         for(int i=2; i<10; ++i)
65             t039.goldChecker.println(i + ": " + nextFib());
66         t039.goldChecker.check();
67     }
68 }
69