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 compiler.intrinsics.bmi.TestAndnI
  34  *        compiler.intrinsics.bmi.BMITestRunner
  35  *        compiler.intrinsics.bmi.Expr
  36  * @run driver ClassFileInstaller sun.hotspot.WhiteBox
  37  *                              sun.hotspot.WhiteBox$WhiteBoxPermission
  38  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
  39  *                   -XX:+WhiteBoxAPI compiler.intrinsics.bmi.TestAndnI
  40  */
  41 
  42 package compiler.intrinsics.bmi;
  43 
  44 import sun.hotspot.cpuinfo.CPUInfo;
  45 
  46 public class TestAndnI {
  47 
  48     public static void main(String args[]) throws Throwable {
  49         if (!CPUInfo.hasFeature("bmi1")) {
  50             System.out.println("INFO: CPU does not support bmi1 feature.");
  51         }
  52 
  53         BMITestRunner.runTests(AndnIExpr.class, args,
  54                                "-XX:+IgnoreUnrecognizedVMOptions",
  55                                "-XX:+UseBMI1Instructions");
  56         BMITestRunner.runTests(AndnICommutativeExpr.class, args,
  57                                "-XX:+IgnoreUnrecognizedVMOptions",
  58                                "-XX:+UseBMI1Instructions");
  59     }
  60 
  61     public static class AndnIExpr extends Expr.BMIBinaryIntExpr {
  62 
  63         public int intExpr(int src1, int src2) {
  64             return ~src1 & src2;
  65         }
  66 
  67         public int intExpr(int src1, Expr.MemI src2) {
  68             if (src2 != null) {
  69                 return ~src1 & src2.value;
  70             } else {
  71                 return 0;
  72             }
  73         }
  74 
  75         public int intExpr(Expr.MemI src1, int src2) {
  76             if (src1 != null) {
  77                 return ~src1.value & src2;
  78             } else {
  79                 return 0;
  80             }
  81         }
  82 
  83         public int intExpr(Expr.MemI src1, Expr.MemI src2) {
  84             if (src1 != null && src2 != null) {
  85                 return ~src1.value & src2.value;
  86             } else {
  87                 return 0;
  88             }
  89         }
  90     }
  91 
  92     public static class AndnICommutativeExpr extends Expr.BMIBinaryIntExpr {
  93 
  94         public int intExpr(int src1, int src2) {
  95             return src1 & ~src2;
  96         }
  97 
  98         public int intExpr(int src1, Expr.MemI src2) {
  99             if (src2 != null) {
 100                 return src1 & ~src2.value;
 101             } else {
 102                 return 0;
 103             }
 104         }
 105 
 106         public int intExpr(Expr.MemI src1, int src2) {
 107             if (src1 != null) {
 108                 return src1.value & ~src2;
 109             } else {
 110                 return 0;
 111             }
 112         }
 113 
 114         public int intExpr(Expr.MemI src1, Expr.MemI src2) {
 115             if (src1 != null && src2 != null) {
 116                 return src1.value & ~src2.value;
 117             } else {
 118                 return 0;
 119             }
 120         }
 121     }
 122 }