1 /*
   2  * Copyright (c) 2014, 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 /testlibrary/whitebox
  31  * @build TestAndnI BMITestRunner Expr
  32  * @run main ClassFileInstaller sun.hotspot.WhiteBox
  33  *                              sun.hotspot.WhiteBox$WhiteBoxPermission
  34  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
  35  *                   -XX:+WhiteBoxAPI TestAndnI
  36  */
  37 
  38 import sun.hotspot.cpuinfo.CPUInfo;
  39 
  40 public class TestAndnI {
  41 
  42     public static void main(String args[]) throws Throwable {
  43         if (!CPUInfo.hasFeature("bmi1")) {
  44             System.out.println("INFO: CPU does not support bmi1 feature.");
  45         }
  46 
  47         BMITestRunner.runTests(AndnIExpr.class, args,
  48                                "-XX:+IgnoreUnrecognizedVMOptions",
  49                                "-XX:+UseBMI1Instructions");
  50         BMITestRunner.runTests(AndnICommutativeExpr.class, args,
  51                                "-XX:+IgnoreUnrecognizedVMOptions",
  52                                "-XX:+UseBMI1Instructions");
  53     }
  54 
  55     public static class AndnIExpr extends Expr.BMIBinaryIntExpr {
  56 
  57         public int intExpr(int src1, int src2) {
  58             return ~src1 & src2;
  59         }
  60 
  61         public int intExpr(int src1, Expr.MemI src2) {
  62             return ~src1 & src2.value;
  63         }
  64 
  65         public int intExpr(Expr.MemI src1, int src2) {
  66             return ~src1.value & src2;
  67         }
  68 
  69         public int intExpr(Expr.MemI src1, Expr.MemI src2) {
  70             return ~src1.value & src2.value;
  71         }
  72     }
  73 
  74     public static class AndnICommutativeExpr extends Expr.BMIBinaryIntExpr {
  75 
  76         public int intExpr(int src1, int src2) {
  77             return src1 & ~src2;
  78         }
  79 
  80         public int intExpr(int src1, Expr.MemI src2) {
  81             return src1 & ~src2.value;
  82         }
  83 
  84         public int intExpr(Expr.MemI src1, int src2) {
  85             return src1.value & ~src2;
  86         }
  87 
  88         public int intExpr(Expr.MemI src1, Expr.MemI src2) {
  89             return src1.value & ~src2.value;
  90         }
  91     }
  92 }