1 /*
2  * Copyright (c) 2008, 2018, 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 driver jdk.test.lib.FileInstaller . .
33  * @build jit.t.t039.t039
34  * @run driver ExecDriver --java jit.t.t039.t039
35  */
36 
37 package jit.t.t039;
38 
39 import nsk.share.TestFailure;
40 import nsk.share.GoldChecker;
41 
42 // opc_lreturn, opc_monitorenter, opc_monitorexit
43 
44 class t039
45 {
46     public static final GoldChecker goldChecker = new GoldChecker( "t039" );
47 
48     private static long f0 = 0, f1 = 1;
49     private static Object x = new Object();
50 
nextFib()51     private static long nextFib()
52     {
53         long res;
54 
55         synchronized(x)
56         {
57             res = f0 + f1;
58             f0 = f1;
59             f1 = res;
60         }
61         return res;
62     }
63 
main(String argv[])64     public static void main(String argv[])
65     {
66         for(int i=2; i<10; ++i)
67             t039.goldChecker.println(i + ": " + nextFib());
68         t039.goldChecker.check();
69     }
70 }
71