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/*
* Copyright (c) 2023, Arm Limited. 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 8311130
* @summary Test synchronization between SVE arguments and CPU features
*
* @requires os.arch == "aarch64" & vm.compiler2.enabled
* @library /test/lib /
* @build jdk.test.whitebox.WhiteBox
* @run driver jdk.test.lib.helpers.ClassFileInstaller
* jdk.test.whitebox.WhiteBox
*
* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
* -XX:+WhiteBoxAPI -XX:UseSVE=0
* compiler.arguments.TestSyncCPUFeaturesWithSVEFlags
*
* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
* -XX:+WhiteBoxAPI -XX:UseSVE=1
* compiler.arguments.TestSyncCPUFeaturesWithSVEFlags
*
* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
* -XX:+WhiteBoxAPI -XX:UseSVE=2
* compiler.arguments.TestSyncCPUFeaturesWithSVEFlags
*
* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
* -XX:+WhiteBoxAPI -XX:MaxVectorSize=8
* compiler.arguments.TestSyncCPUFeaturesWithSVEFlags
*/
package compiler.arguments;
import java.util.List;
import java.util.Arrays;
import jdk.test.lib.Asserts;
import jdk.test.whitebox.WhiteBox;
public class TestSyncCPUFeaturesWithSVEFlags {
private static final WhiteBox WB = WhiteBox.getWhiteBox();
public static void main(String[] args) {
int sve_level = WB.getUintVMFlag("UseSVE").intValue();
List<String> features = Arrays.asList(WB.getCPUFeatures().split(", "));
boolean has_sve = features.contains("sve");
boolean has_sve2 = features.contains("sve2");
switch (sve_level) {
case 0: {
// No sve and sve2
Asserts.assertFalse(has_sve);
Asserts.assertFalse(has_sve2);
break;
}
case 1: {
// Only has sve, no sve2
Asserts.assertTrue(has_sve);
Asserts.assertFalse(has_sve2);
break;
}
case 2: {
// Has both sve and sve2
Asserts.assertTrue(has_sve);
Asserts.assertTrue(has_sve2);
break;
}
default: {
// Should not reach here
Asserts.assertTrue(false);
break;
}
}
}
}
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