| /* |
| * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /** |
| * @test |
| * @bug 8031321 |
| * @summary Verify processing of UseCountTrailingZerosInstruction option |
| * on CPU without TZCNT instruction (BMI1 feature) support. |
| * @library /testlibrary /testlibrary/whitebox |
| * @build TestUseCountTrailingZerosInstructionOnUnsupportedCPU |
| * BMIUnsupportedCPUTest |
| * @run main ClassFileInstaller sun.hotspot.WhiteBox |
| * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions |
| * -XX:+WhiteBoxAPI |
| * TestUseCountTrailingZerosInstructionOnUnsupportedCPU |
| */ |
| |
| import sun.hotspot.cpuinfo.CPUInfo; |
| import com.oracle.java.testlibrary.*; |
| import com.oracle.java.testlibrary.cli.*; |
| |
| public class TestUseCountTrailingZerosInstructionOnUnsupportedCPU |
| extends BMIUnsupportedCPUTest { |
| private static final String ENABLE_BMI = "-XX:+UseBMI1Instructions"; |
| |
| public TestUseCountTrailingZerosInstructionOnUnsupportedCPU() { |
| super("UseCountTrailingZerosInstruction", TZCNT_WARNING, "bmi1"); |
| } |
| |
| @Override |
| public void unsupportedX86CPUTestCases() throws Throwable { |
| |
| super.unsupportedX86CPUTestCases(); |
| |
| /* |
| Verify that option will not be turned on during UseBMI1Instructions |
| processing. VM will be launched with following options: |
| -XX:+UseBMI1Instructions -version |
| */ |
| CommandLineOptionTest.verifyOptionValueForSameVM(optionName, "false", |
| TestUseCountTrailingZerosInstructionOnUnsupportedCPU. |
| ENABLE_BMI); |
| |
| /* |
| VM will be launched with following options: |
| -XX:+UseCountTrailingZerosInstruction -XX:+UseBMI1Instructions |
| -version |
| */ |
| CommandLineOptionTest.verifyOptionValueForSameVM(optionName, "false", |
| CommandLineOptionTest.prepareBooleanFlag(optionName, true), |
| TestUseCountTrailingZerosInstructionOnUnsupportedCPU. |
| ENABLE_BMI); |
| } |
| |
| public static void main(String args[]) throws Throwable { |
| new TestUseCountTrailingZerosInstructionOnUnsupportedCPU().test(); |
| } |
| } |
| |