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 TestAndnI 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 TestAndnI
  38  */
  39 
  40 import sun.hotspot.cpuinfo.CPUInfo;
  41 
  42 public class TestAndnI {
  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(AndnIExpr.class, args,
  50                                "-XX:+IgnoreUnrecognizedVMOptions",
  51                                "-XX:+UseBMI1Instructions");
  52         BMITestRunner.runTests(AndnICommutativeExpr.class, args,
  53                                "-XX:+IgnoreUnrecognizedVMOptions",
  54                                "-XX:+UseBMI1Instructions");
  55     }
  56 
  57     public static class AndnIExpr extends Expr.BMIBinaryIntExpr {
  58 
  59         public int intExpr(int src1, int src2) {
  60             return ~src1 & src2;
  61         }
  62 
  63         public int intExpr(int src1, Expr.MemI src2) {
  64             if (src2 != null) {
  65                 return ~src1 & src2.value;
  66             } else {
  67                 return 0;
  68             }
  69         }
  70 
  71         public int intExpr(Expr.MemI src1, int src2) {
  72             if (src1 != null) {
  73                 return ~src1.value & src2;
  74             } else {
  75                 return 0;
  76             }
  77         }
  78 
  79         public int intExpr(Expr.MemI src1, Expr.MemI src2) {
  80             if (src1 != null && src2 != null) {
  81                 return ~src1.value & src2.value;
  82             } else {
  83                 return 0;
  84             }
  85         }
  86     }
  87 
  88     public static class AndnICommutativeExpr extends Expr.BMIBinaryIntExpr {
  89 
  90         public int intExpr(int src1, int src2) {
  91             return src1 & ~src2;
  92         }
  93 
  94         public int intExpr(int src1, Expr.MemI src2) {
  95             if (src2 != null) {
  96                 return src1 & ~src2.value;
  97             } else {
  98                 return 0;
  99             }
 100         }
 101 
 102         public int intExpr(Expr.MemI src1, int src2) {
 103             if (src1 != null) {
 104                 return src1.value & ~src2;
 105             } else {
 106                 return 0;
 107             }
 108         }
 109 
 110         public int intExpr(Expr.MemI src1, Expr.MemI src2) {
 111             if (src1 != null && src2 != null) {
 112                 return src1.value & ~src2.value;
 113             } else {
 114                 return 0;
 115             }
 116         }
 117     }
 118 }