1 /*

     2  * Copyright (c) 2019 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 8214239

    27  * @summary Missing x86_64.ad patterns for clearing and setting long vector bits

    28  *

    29  * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+UnlockDiagnosticVMOptions

    30  *                   -XX:-TieredCompilation -XX:CompileThreshold=1000

    31  *                   -XX:CompileCommand=print,compiler/c2/TestBitSetAndReset.test*

    32  *                   -XX:CompileCommand=compileonly,compiler/c2/TestBitSetAndReset.test*

    33  *                   -XX:CompileCommand=dontinline,compiler/c2/TestBitSetAndReset.test*

    34  *                   compiler.c2.TestBitSetAndReset

    35  */

    36 

    37 package compiler.c2;

    38 

    39 public class TestBitSetAndReset {

    40     private static final int COUNT = 10_000;

    41 

    42     private static final long MASK63 = 0x8000_0000_0000_0000L;

    43     private static final long MASK32 = 0x0000_0001_0000_0000L;

    44     private static final long MASK31 = 0x0000_0000_8000_0000L;

    45     private static final long MASK15 = 0x0000_0000_0000_8000L;

    46     private static final long MASK00 = 0x0000_0000_0000_0001L;

    47 

    48     private static long andq, orq;

    49 

    50     public static void main(String... args) {

    51         boolean success = true;

    52 

    53         for (int i=0; i<COUNT; i++) {

    54             andq = MASK63 | MASK31 | MASK15 | MASK00;

    55             orq = 0;

    56             test63();

    57             test32();

    58             test31();

    59             test15();

    60             test00();

    61             success &= andq == 0 && orq == (MASK63 | MASK32 | MASK31 | MASK15 | MASK00);

    62         }

    63         if (!success)

    64             throw new AssertionError("Failure while setting or clearing long vector bits!");

    65     }

    66 

    67     private static void test63() {

    68         andq &= ~MASK63;

    69         orq |= MASK63;

    70     }

    71     private static void test32() {

    72         andq &= ~MASK32;

    73         orq |= MASK32;

    74     }

    75     private static void test31() {

    76         andq &= ~MASK31;

    77         orq |= MASK31;

    78     }

    79     private static void test15() {

    80         andq &= ~MASK15;

    81         orq |= MASK15;

    82     }

    83     private static void test00() {

    84         andq &= ~MASK00;

    85         orq |= MASK00;

    86     }

    87 }