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 /**
  26  * @test
  27  * @bug 8031321
  28  * @summary Verify that results of computations are the same w/
  29  *          and w/o usage of ANDN instruction
  30  * @library /testlibrary /test/lib
  31  * @modules java.base/jdk.internal.misc
  32  *          java.management
  33  * @build TestAndnL BMITestRunner Expr
  34  * @run main ClassFileInstaller sun.hotspot.WhiteBox
  35  *                              sun.hotspot.WhiteBox$WhiteBoxPermission
  36  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
  37  *                   -XX:+WhiteBoxAPI TestAndnL
  38  */
  39 
  40 import sun.hotspot.cpuinfo.CPUInfo;
  41 
  42 public class TestAndnL {
  43 
  44     public static void main(String args[]) throws Throwable {
  45         if (!CPUInfo.hasFeature("bmi1")) {
  46             System.out.println("INFO: CPU does not support bmi1 feature.");
  47         }
  48 
  49         BMITestRunner.runTests(AndnLExpr.class, args,
  50                                "-XX:+IgnoreUnrecognizedVMOptions",
  51                                "-XX:+UseBMI1Instructions");
  52         BMITestRunner.runTests(AndnLCommutativeExpr.class, args,
  53                               "-XX:+IgnoreUnrecognizedVMOptions",
  54                                "-XX:+UseBMI1Instructions");
  55     }
  56 
  57     public static class AndnLExpr extends Expr.BMIBinaryLongExpr {
  58 
  59         public long longExpr(long src1, long src2) {
  60             return ~src1 & src2;
  61         }
  62 
  63         public long longExpr(long src1, Expr.MemL src2) {
  64             if (src2 != null) {
  65                 return ~src1 & src2.value;
  66             } else {
  67                 return 0;
  68             }
  69         }
  70 
  71         public long longExpr(Expr.MemL src1, long src2) {
  72             if (src1 != null) {
  73                 return ~src1.value & src2;
  74             } else {
  75                 return 0;
  76             }
  77         }
  78 
  79         public long longExpr(Expr.MemL src1, Expr.MemL src2) {
  80             if (src1 != null && src2 != null) {
  81                 return ~src1.value & src2.value;
  82             } else {
  83                 return 0;
  84             }
  85         }
  86 
  87 
  88     }
  89 
  90     public static class AndnLCommutativeExpr extends Expr.BMIBinaryLongExpr {
  91 
  92         public long longExpr(long src1, long src2) {
  93             return src1 & ~src2;
  94         }
  95 
  96         public long longExpr(long src1, Expr.MemL src2) {
  97             if (src2 != null) {
  98                 return src1 & ~src2.value;
  99             } else {
 100                 return 0;
 101             }
 102         }
 103 
 104         public long longExpr(Expr.MemL src1, long src2) {
 105             if (src1 != null) {
 106                 return src1.value & ~src2;
 107             } else {
 108                 return 0;
 109             }
 110         }
 111 
 112         public long longExpr(Expr.MemL src1, Expr.MemL src2) {
 113             if (src1 != null && src2 != null) {
 114                 return src1.value & ~src2.value;
 115             } else {
 116                 return 0;
 117             }
 118         }
 119 
 120     }
 121 
 122 }