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/othervm/bootclasspath -XX:+UnlockDiagnosticVMOptions 33 * -XX:+WhiteBoxAPI 34 * TestUseCountTrailingZerosInstructionOnUnsupportedCPU 35 */ 36 37 import sun.hotspot.cpuinfo.CPUInfo; 38 import com.oracle.java.testlibrary.*; 39 import com.oracle.java.testlibrary.cli.*; 40 41 public class TestUseCountTrailingZerosInstructionOnUnsupportedCPU 42 extends BMIUnsupportedCPUTest { 43 44 public TestUseCountTrailingZerosInstructionOnUnsupportedCPU() { 45 super("UseCountTrailingZerosInstruction", TZCNT_WARNING, "bmi1"); 46 } 47 48 @Override 49 public void unsupportedX86CPUTestCases() throws Throwable { 50 51 super.unsupportedX86CPUTestCases(); 52 53 // verify that option will not be turned on during 54 // UseBMI1Instuctions processing 55 CommandLineOptionTest. 56 verifyOptionValue("UseCountTrailingZerosInstruction", "false", 57 "-XX:+UseBMI1Instructions"); 58 59 CommandLineOptionTest. 60 verifyOptionValue("UseCountTrailingZerosInstruction", "false", 61 "-XX:+UseCountTrailingZerosInstruction", 62 "-XX:+UseBMI1Instructions"); 63 } 64 65 public static void main(String args[]) throws Throwable { 66 new TestUseCountTrailingZerosInstructionOnUnsupportedCPU().test(); 67 } 68 } 69