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