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  * @requires vm.flavor == "server"
  28  * @library /test/lib /
  29  * @modules java.base/jdk.internal.misc
  30  *          java.management
  31  *
  32  * @build sun.hotspot.WhiteBox
  33  * @run driver ClassFileInstaller sun.hotspot.WhiteBox
  34  *                                sun.hotspot.WhiteBox$WhiteBoxPermission
  35  * @run main/othervm -Xbootclasspath/a:. -Xbatch -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
  36  *      -XX:+IgnoreUnrecognizedVMOptions -XX:+UseCountTrailingZerosInstruction
  37  *      compiler.intrinsics.bmi.verifycode.TZcntTestI
  38  */
  39 package compiler.intrinsics.bmi.verifycode;
  40 
  41 import compiler.intrinsics.bmi.TestTzcntI;
  42 
  43 import java.lang.reflect.Method;
  44 
  45 public class TZcntTestI extends BmiIntrinsicBase.BmiTestCase_x64 {
  46 
  47     protected TZcntTestI(Method method) {
  48         super(method);
  49         instrMask = new byte[]{(byte) 0xFF, (byte) 0xFF, (byte) 0xFF};
  50         instrPattern = new byte[]{(byte) 0xF3, (byte) 0x0F, (byte) 0xBC};
  51 
  52         instrMask_x64 = new byte[]{(byte) 0xFF, (byte) 0x00, (byte) 0xFF, (byte) 0xFF};
  53         instrPattern_x64 = new byte[]{(byte) 0xF3, (byte) 0x00, (byte) 0x0F, (byte) 0xBC};
  54     }
  55 
  56     public static void main(String[] args) throws Exception {
  57         // j.l.Integer and Long should be loaded to allow a compilation of the methods that use their methods
  58         System.out.println("class java.lang.Integer should be loaded. Proof: " + Integer.class);
  59         // Avoid uncommon traps.
  60         System.out.println("Num trailing zeroes: " + new TestTzcntI.TzcntIExpr().intExpr(12341341));
  61         BmiIntrinsicBase.verifyTestCase(TZcntTestI::new, TestTzcntI.TzcntIExpr.class.getDeclaredMethods());
  62     }
  63 
  64     @Override
  65     protected String getVMFlag() {
  66         return "UseCountTrailingZerosInstruction";
  67     }
  68 }