97 lines
3.9 KiB
Java
97 lines
3.9 KiB
Java
/*
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* Copyright (c) 2020, 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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* @library /test/lib /
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*
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* @build sun.hotspot.WhiteBox
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* @run driver ClassFileInstaller sun.hotspot.WhiteBox
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* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
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* -XX:+WhiteBoxAPI
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* CPUInfoTest
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*/
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import java.util.Set;
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import java.util.List;
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import jdk.test.lib.Platform;
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import sun.hotspot.WhiteBox;
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import sun.hotspot.cpuinfo.CPUInfo;
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import static jdk.test.lib.Asserts.*;
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public class CPUInfoTest {
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static final WhiteBox WB = WhiteBox.getWhiteBox();
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private static final Set<String> wellKnownCPUFeatures;
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static {
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if (Platform.isX86() || Platform.isX64()) {
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// @formatter:off
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// Checkstyle: stop
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// See hotspot/cpu/x86/vm_version_x86.hpp for the list of supported features.
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wellKnownCPUFeatures = Set.of(
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"cx8", "cmov", "fxsr", "ht",
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"mmx", "3dnowpref", "sse", "sse2",
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"sse3", "ssse3", "sse4a", "sse4.1",
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"sse4.2", "popcnt", "lzcnt", "tsc",
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"tscinvbit", "tscinv", "avx", "avx2",
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"aes", "erms", "clmul", "bmi1",
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"bmi2", "rtm", "adx", "avx512f",
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"avx512dq", "avx512pf", "avx512er", "avx512cd",
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"avx512bw", "avx512vl", "sha", "fma",
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"vzeroupper", "avx512_vpopcntdq", "avx512_vpclmulqdq", "avx512_vaes",
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"avx512_vnni", "clflush", "clflushopt", "clwb",
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"avx512_vmbi2", "avx512_vmbi", "hv"
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);
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// @formatter:on
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// Checkstyle: resume
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} else {
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wellKnownCPUFeatures = null;
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}
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}
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public static void main(String args[]) throws Throwable {
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System.out.println("WB.getCPUFeatures(): \"" + WB.getCPUFeatures() + "\"");
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String additionalCpuInfo = CPUInfo.getAdditionalCPUInfo();
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assertTrue(additionalCpuInfo != null);
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System.out.println("CPUInfo.getAdditionalCPUInfo(): \"" + additionalCpuInfo + "\"");
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List<String> features = CPUInfo.getFeatures();
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assertTrue(features != null);
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System.out.println("CPUInfo.getFeatures(): " + features);
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for (String feature : features) {
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assertTrue(CPUInfo.hasFeature(feature), feature);
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}
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if (wellKnownCPUFeatures != null) {
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System.out.println("Well-known CPU features: " + wellKnownCPUFeatures);
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assertTrue(wellKnownCPUFeatures.containsAll(features), "not all features are known");
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}
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System.out.println("TEST PASSED");
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}
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}
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