1 /* 2 * Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* 25 * @test 26 * @bug 8031321 27 * @library /testlibrary /test/lib /compiler/whitebox .. 28 * @modules java.base/sun.misc 29 * java.management 30 * @build LZcntTestI 31 * @run main ClassFileInstaller sun.hotspot.WhiteBox 32 * sun.hotspot.WhiteBox$WhiteBoxPermission 33 * @run main/othervm -Xbootclasspath/a:. -Xbatch -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI 34 * -XX:+IgnoreUnrecognizedVMOptions -XX:+UseCountLeadingZerosInstruction LZcntTestI 35 */ 36 37 import java.lang.reflect.Method; 38 39 public class LZcntTestI extends BmiIntrinsicBase.BmiTestCase_x64 { 40 41 protected LZcntTestI(Method method) { 42 super(method); 43 instrMask = new byte[]{(byte) 0xFF, (byte) 0xFF, (byte) 0xFF}; 44 instrPattern = new byte[]{(byte) 0xF3, (byte) 0x0F, (byte) 0xBD}; 45 46 instrMask_x64 = new byte[]{(byte) 0xFF, (byte) 0x00, (byte) 0xFF, (byte) 0xFF}; 47 instrPattern_x64 = new byte[]{(byte) 0xF3, (byte) 0x00, (byte) 0x0F, (byte) 0xBD}; 48 } 49 50 public static void main(String[] args) throws Exception { 51 // j.l.Integer and Long should be loaded to allow a compilation of the methods that use their methods 52 System.out.println("class java.lang.Integer should be loaded. Proof: " + Integer.class); 53 BmiIntrinsicBase.verifyTestCase(LZcntTestI::new, TestLzcntI.LzcntIExpr.class.getDeclaredMethods()); 54 } 55 56 @Override 57 protected String getVMFlag() { 58 return "UseCountLeadingZerosInstruction"; 59 } 60 61 @Override 62 protected String getCpuFlag() { 63 return "lzcnt"; 64 } 65 }