1 /*
 2  * Copyright (c) 2017, 2021, 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 #include "precompiled.hpp"
26 #include "code/vtableStubs.hpp"
27 #include "runtime/interfaceSupport.inline.hpp"
28 #include "unittest.hpp"
29 
30 #ifndef ZERO
31 
32 TEST_VM(code, vtableStubs) {
33   // Should be in VM to use locks
34   ThreadInVMfromNative ThreadInVMfromNative(JavaThread::current());
35 
36   VtableStubs::find_vtable_stub(0); // min vtable index
37   for (int i = 0; i < 15; i++) {
38     VtableStubs::find_vtable_stub((1 << i) - 1);
39     VtableStubs::find_vtable_stub((1 << i));
40   }
41   VtableStubs::find_vtable_stub((1 << 15) - 1); // max vtable index
42 }
43 
44 TEST_VM(code, itableStubs) {
45   // Should be in VM to use locks
46   ThreadInVMfromNative ThreadInVMfromNative(JavaThread::current());
47 
48   VtableStubs::find_itable_stub(0); // min itable index
49   for (int i = 0; i < 15; i++) {
50     VtableStubs::find_itable_stub((1 << i) - 1);
51     VtableStubs::find_itable_stub((1 << i));
52   }
53   VtableStubs::find_itable_stub((1 << 15) - 1); // max itable index
54 }
55 
56 #endif