89 lines
3.5 KiB
Java
89 lines
3.5 KiB
Java
/*
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* Copyright (c) 2014, 2022, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/**
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* @test
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* @bug 8031321
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* @summary Verify processing of UseCountTrailingZerosInstruction option
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* on CPU without TZCNT instruction (BMI1 feature) support.
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* @library /test/lib /
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* @requires vm.flagless
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* @modules java.base/jdk.internal.misc
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* java.management
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*
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* @build jdk.test.whitebox.WhiteBox
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* @run driver jdk.test.lib.helpers.ClassFileInstaller jdk.test.whitebox.WhiteBox
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* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
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* -XX:+WhiteBoxAPI
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* compiler.arguments.TestUseCountTrailingZerosInstructionOnUnsupportedCPU
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*/
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package compiler.arguments;
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import jdk.test.lib.cli.CommandLineOptionTest;
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public class TestUseCountTrailingZerosInstructionOnUnsupportedCPU
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extends BMIUnsupportedCPUTest {
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private static final String ENABLE_BMI = "-XX:+UseBMI1Instructions";
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public TestUseCountTrailingZerosInstructionOnUnsupportedCPU() {
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super("UseCountTrailingZerosInstruction", TZCNT_WARNING, "bmi1");
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}
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@Override
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public void unsupportedX86CPUTestCases() throws Throwable {
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super.unsupportedX86CPUTestCases();
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/*
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Verify that option will not be turned on during UseBMI1Instructions
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processing. VM will be launched with following options:
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-XX:+UseBMI1Instructions -version
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*/
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CommandLineOptionTest.verifyOptionValueForSameVM(optionName, "false",
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"Feature bmi1 is not supported on current CPU. Option "
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+ "UseCountTrailingZerosInstruction should have 'false'"
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+ " value",
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TestUseCountTrailingZerosInstructionOnUnsupportedCPU.
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ENABLE_BMI);
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/*
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VM will be launched with following options:
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-XX:+UseCountTrailingZerosInstruction -XX:+UseBMI1Instructions
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-version
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*/
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CommandLineOptionTest.verifyOptionValueForSameVM(optionName, "false",
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"Feature bmi1 is not supported on current CPU. Option "
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+ "UseCountTrailingZerosInstruction should have 'false'"
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+ " value",
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CommandLineOptionTest.prepareBooleanFlag(optionName, true),
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TestUseCountTrailingZerosInstructionOnUnsupportedCPU.
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ENABLE_BMI);
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}
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public static void main(String args[]) throws Throwable {
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new TestUseCountTrailingZerosInstructionOnUnsupportedCPU().test();
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}
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}
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