1/*
2 * Copyright (c) 2014, 2016, 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
24import jdk.test.lib.Asserts;
25import jdk.test.lib.Platform;
26import sun.hotspot.WhiteBox;
27
28/**
29 * @test
30 * @summary Verifies that Platform::isTieredSupported returns correct value.
31 * @library /test/lib
32 * @modules java.base/jdk.internal.misc
33 *          java.management
34 * @build sun.hotspot.WhiteBox
35 * @run main ClassFileInstaller sun.hotspot.WhiteBox
36 *                              sun.hotspot.WhiteBox$WhiteBoxPermission
37 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
38 *                   -XX:+WhiteBoxAPI -XX:+TieredCompilation
39 *                   TestPlatformIsTieredSupported
40 */
41public class TestPlatformIsTieredSupported {
42    public static void main(String args[]) {
43        WhiteBox whiteBox = WhiteBox.getWhiteBox();
44        boolean tieredCompilation = whiteBox.getBooleanVMFlag(
45                "TieredCompilation");
46        Asserts.assertEQ(Platform.isTieredSupported(), tieredCompilation,
47                "Platform::isTieredSupported should report the same value as "
48                        + "TieredCompilation flag's value when "
49                        + "+TieredCompilation was explicitly passed to JVM.");
50    }
51}
52