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64 lines
2.6 KiB
64 lines
2.6 KiB
/* |
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* Copyright (c) 2014, 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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* @library /testlibrary /testlibrary/whitebox /compiler/whitebox .. |
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* @build LZcntTestI |
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* @run main ClassFileInstaller sun.hotspot.WhiteBox |
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* @run main/othervm -Xbootclasspath/a:. -Xbatch -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI |
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* -XX:+IgnoreUnrecognizedVMOptions -XX:+UseCountLeadingZerosInstruction LZcntTestI |
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*/ |
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import java.lang.reflect.Method; |
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public class LZcntTestI extends BmiIntrinsicBase.BmiTestCase_x64 { |
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protected LZcntTestI(Method method) { |
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super(method); |
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instrMask = new byte[]{(byte) 0xFF, (byte) 0xFF, (byte) 0xFF}; |
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instrPattern = new byte[]{(byte) 0xF3, (byte) 0x0F, (byte) 0xBD}; |
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instrMask_x64 = new byte[]{(byte) 0xFF, (byte) 0x00, (byte) 0xFF, (byte) 0xFF}; |
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instrPattern_x64 = new byte[]{(byte) 0xF3, (byte) 0x00, (byte) 0x0F, (byte) 0xBD}; |
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} |
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public static void main(String[] args) throws Exception { |
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// j.l.Integer and Long should be loaded to allow a compilation of the methods that use their methods |
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System.out.println("class java.lang.Integer should be loaded. Proof: " + Integer.class); |
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// Avoid uncommon traps. |
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System.out.println("Num leading zeroes: " + new TestLzcntI.LzcntIExpr().intExpr(12341341)); |
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BmiIntrinsicBase.verifyTestCase(LZcntTestI::new, TestLzcntI.LzcntIExpr.class.getDeclaredMethods()); |
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} |
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@Override |
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protected String getVMFlag() { |
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return "UseCountLeadingZerosInstruction"; |
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} |
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@Override |
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protected String getCpuFlag() { |
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return "lzcnt"; |
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} |
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}
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