1 /*
   2  * Copyright (c) 2014, 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  * @test
  26  * @bug 8031321
  27  * @summary Verify processing of UseCountTrailingZerosInstruction option
  28  *          on CPU without TZCNT instuction (BMI1 feature) support.
  29  * @library /testlibrary /testlibrary/whitebox
  30  * @build TestUseCountTrailingZerosInstructionOnUnsupportedCPU
  31  *        BMIUnsupportedCPUTest
  32  * @run main ClassFileInstaller sun.hotspot.WhiteBox
  33  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
  34  *                   -XX:+WhiteBoxAPI
  35  *                   TestUseCountTrailingZerosInstructionOnUnsupportedCPU
  36  */
  37 
  38 import sun.hotspot.cpuinfo.CPUInfo;
  39 import com.oracle.java.testlibrary.*;
  40 import com.oracle.java.testlibrary.cli.*;
  41 
  42 public class TestUseCountTrailingZerosInstructionOnUnsupportedCPU
  43      extends BMIUnsupportedCPUTest {
  44 
  45     public TestUseCountTrailingZerosInstructionOnUnsupportedCPU() {
  46         super("UseCountTrailingZerosInstruction", TZCNT_WARNING, "bmi1");
  47     }
  48 
  49     @Override
  50     public void unsupportedX86CPUTestCases() throws Throwable {
  51 
  52         super.unsupportedX86CPUTestCases();
  53 
  54         // verify that option will not be turned on during
  55         // UseBMI1Instuctions processing
  56         CommandLineOptionTest.
  57             verifyOptionValue("UseCountTrailingZerosInstruction", "false",
  58                               "-XX:+UseBMI1Instructions");
  59 
  60         CommandLineOptionTest.
  61             verifyOptionValue("UseCountTrailingZerosInstruction", "false",
  62                               "-XX:+UseCountTrailingZerosInstruction",
  63                               "-XX:+UseBMI1Instructions");
  64     }
  65 
  66     public static void main(String args[]) throws Throwable {
  67         new TestUseCountTrailingZerosInstructionOnUnsupportedCPU().test();
  68     }
  69 }
  70