1 /*
   2  * Copyright (c) 2017, 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 TEST_VM(code, vtableStubs) {
  31   // Should be in VM to use locks
  32   ThreadInVMfromNative ThreadInVMfromNative(JavaThread::current());
  33 
  34   VtableStubs::find_vtable_stub(0); // min vtable index
  35   for (int i = 0; i < 15; i++) {
  36     VtableStubs::find_vtable_stub((1 << i) - 1);
  37     VtableStubs::find_vtable_stub((1 << i));
  38   }
  39   VtableStubs::find_vtable_stub((1 << 15) - 1); // max vtable index
  40 }
  41 
  42 TEST_VM(code, itableStubs) {
  43   // Should be in VM to use locks
  44   ThreadInVMfromNative ThreadInVMfromNative(JavaThread::current());
  45 
  46   VtableStubs::find_itable_stub(0); // min itable index
  47   for (int i = 0; i < 15; i++) {
  48     VtableStubs::find_itable_stub((1 << i) - 1);
  49     VtableStubs::find_itable_stub((1 << i));
  50   }
  51   VtableStubs::find_itable_stub((1 << 15) - 1); // max itable index
  52 }