1 /*

     2  * Copyright (c) 2009, 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 6769124

    28  * @summary arraycopy may crash the VM with c1 on 64 bit

    29  *

    30  * @run main compiler.c1.TestArrayCopy

    31  */

    32 

    33 package compiler.c1;

    34 

    35 public class TestArrayCopy {

    36 

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

    38 

    39         int k = 1 << 31;

    40 

    41 

    42         for(int j = 0; j <1000000; j++) {

    43             int i = -1;

    44             while(i < 10) {

    45                 i++;

    46             }

    47 

    48             int m = k * i;

    49 

    50             int[] O1 = new int[20];

    51             int[] O2 = new int[20];

    52 

    53             System.arraycopy(O1, i, O2, i, 1); //will crash on amd64

    54             System.arraycopy(O1, m, O2, m, 1); //will crash on sparcv9

    55         }

    56     }

    57 }