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  * @test

    26  * @bug 6901572

    27  * @summary JVM 1.6.16 crash on loops: assert(has_node(i),"")

    28  *

    29  * @run main/othervm compiler.c2.Test6901572

    30  */

    31 

    32 package compiler.c2;

    33 

    34 public class Test6901572 {

    35 

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

    37         for (int i = 0; i < 2; i++)

    38             NestedLoop();

    39     }

    40 

    41     public static long NestedLoop() {

    42         final int n = 50;

    43         long startTime = System.currentTimeMillis();

    44         int x = 0;

    45         for(int a = 0; a < n; a++)

    46             for(int b = 0; b < n; b++)

    47                 for(int c = 0; c < n; c++)

    48                     for(int d = 0; d < n; d++)

    49                         for(int e = 0; e < n; e++)

    50                             for(int f = 0; f < n; f++)

    51                                 x++;

    52         long stopTime = System.currentTimeMillis();

    53 

    54         return stopTime - startTime;

    55     }

    56 }