jdk8-mips64-public/hotspot: test/compiler/6968348/Test6968348.java@f90c822e73f8

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http://hg.openjdk.java.net/jdk8u/jdk8u/hotspot/
changeset: 6782:28b50d07f6f8
tag: jdk8u25-b17

     1 /*

     2  * Copyright (c) 2010, 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  */

    25 /**

    26  * @test

    27  * @bug 6968348

    28  * @summary Byteswapped memory access can point to wrong location after JIT

    29  *

    30  * @run main Test6968348

    31  */

    33 import sun.misc.Unsafe;

    34 import java.lang.reflect.*;

    36 public class Test6968348 {

    37     static Unsafe unsafe;

    38     static final long[] buffer = new long[4096];

    39     static int array_long_base_offset;

    41     public static void main(String[] args) throws Exception {

    42         Class c = Test6968348.class.getClassLoader().loadClass("sun.misc.Unsafe");

    43         Field f = c.getDeclaredField("theUnsafe");

    44         f.setAccessible(true);

    45         unsafe = (Unsafe)f.get(c);

    46         array_long_base_offset = unsafe.arrayBaseOffset(long[].class);

    48         for (int n = 0; n < 100000; n++) {

    49             test();

    50         }

    51     }

    53     public static void test() {

    54         for (long i = array_long_base_offset; i < 4096; i += 8) {

    55             unsafe.putLong(buffer, i, Long.reverseBytes(i));

    56         }

    57     }

    58 }

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