jdk8-mips64-public/hotspot: test/compiler/7103261/Test7103261.java@5201379fe487

     1 /*

     2  * Copyright (c) 2011, 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 7103261

    28  * @summary crash with jittester on sparc

    29  *

    30  * @run main Test7103261

    31  */

    33 // exercise implicit null checking in the compiler for various field types

    34 public class Test7103261 {

    35     static Test7103261 null_value;

    36     static Test7103261 nonnull_value = new Test7103261();

    37     static Test7103261 nonnull_value2 = new Test7103261();

    39     long l;

    40     int i;

    41     float f;

    42     double d;

    43     byte b;

    44     char c;

    45     short s;

    46     boolean z;

    48     public static void main(String[] args) {

    49         constantStore();

    50         valueTest(false);

    51         valueTest(true);

    52     }

    53     static void constantStore() {

    54         for (int field = 0; field < 8; field++) {

    55             try {

    56                 Test7103261 o = nonnull_value;

    57                 for (int i = 0; i < 100000; i++) {

    58                     switch (field) {

    59                     case 0: o.l = 0; break;

    60                     case 1: o.i = 0; break;

    61                     case 2: o.f = 0; break;

    62                     case 3: o.d = 0; break;

    63                     case 4: o.b = 0; break;

    64                     case 5: o.c = 0; break;

    65                     case 6: o.s = 0; break;

    66                     case 7: o.z = false; break;

    67                     default: throw new InternalError();

    68                     }

    69                     if (i == 90000) {

    70                         // hide nullness from optimizer

    71                         o = null_value;

    72                     }

    73                 }

    74             } catch (NullPointerException npe) {

    75             }

    76         }

    77     }

    78     static void valueTest(boolean store) {

    79         for (int field = 0; field < 8; field++) {

    80             try {

    81                 Test7103261 o  = nonnull_value;

    82                 Test7103261 o2 = nonnull_value2;

    83                 for (int i = 0; i < 100000; i++) {

    84                     switch (field) {

    85                     case 0: o.l = o2.l; break;

    86                     case 1: o.i = o2.i; break;

    87                     case 2: o.f = o2.f; break;

    88                     case 3: o.d = o2.d; break;

    89                     case 4: o.b = o2.b; break;

    90                     case 5: o.c = o2.c; break;

    91                     case 6: o.s = o2.s; break;

    92                     case 7: o.z = o2.z; break;

    93                     default: throw new InternalError();

    94                     }

    95                     if (i == 90000) {

    96                         // hide nullness from optimizer

    97                         if (store)

    98                             o = null_value;

    99                         else

   100                             o2 = null_value;

   101                     }

   102                 }

   103             } catch (NullPointerException npe) {

   104             }

   105         }

   106     }

   107 }

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