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/*
* Copyright (c) 2014, 2016, Oracle and/or its affiliates. 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 8031321
* @requires vm.flavor == "server" & !vm.emulatedClient & !vm.graal.enabled
* @library /test/lib /
* @modules java.base/jdk.internal.misc
* java.management
*
* @build sun.hotspot.WhiteBox
* @run driver ClassFileInstaller sun.hotspot.WhiteBox
* sun.hotspot.WhiteBox$WhiteBoxPermission
* @run main/othervm -Xbootclasspath/a:. -Xbatch -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
* -XX:+IgnoreUnrecognizedVMOptions -XX:+UseCountLeadingZerosInstruction
* compiler.intrinsics.bmi.verifycode.LZcntTestI
*/
package compiler.intrinsics.bmi.verifycode;
import compiler.intrinsics.bmi.TestLzcntI;
import java.lang.reflect.Method;
public class LZcntTestI extends BmiIntrinsicBase.BmiTestCase_x64 {
protected LZcntTestI(Method method) {
super(method);
instrMask = new byte[]{(byte) 0xFF, (byte) 0xFF, (byte) 0xFF};
instrPattern = new byte[]{(byte) 0xF3, (byte) 0x0F, (byte) 0xBD};
instrMask_x64 = new byte[]{(byte) 0xFF, (byte) 0x00, (byte) 0xFF, (byte) 0xFF};
instrPattern_x64 = new byte[]{(byte) 0xF3, (byte) 0x00, (byte) 0x0F, (byte) 0xBD};
}
public static void main(String[] args) throws Exception {
// j.l.Integer and Long should be loaded to allow a compilation of the methods that use their methods
System.out.println("class java.lang.Integer should be loaded. Proof: " + Integer.class);
// Avoid uncommon traps.
System.out.println("Num leading zeroes: " + new TestLzcntI.LzcntIExpr().intExpr(12341341));
BmiIntrinsicBase.verifyTestCase(LZcntTestI::new, TestLzcntI.LzcntIExpr.class.getDeclaredMethods());
}
@Override
protected String getVMFlag() {
return "UseCountLeadingZerosInstruction";
}
@Override
protected String getCpuFlag() {
return "lzcnt";
}
}
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