1 /*

     2  * Copyright 2009 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    20  * CA 95054 USA or visit www.sun.com if you need additional information or

    21  * have any questions.

    22  */

    23 

    24 /**

    25  * @test

    26  * @bug 6877254

    27  * @summary Implement StoreCMNode::Ideal to promote its OopStore above the MergeMem

    28  *

    29  * @run main/othervm -server -Xcomp -XX:+UseConcMarkSweepGC Test

    30  */

    31 

    32 public class Test {

    33     static byte var_1;

    34     static String var_2 = "";

    35     static byte var_3;

    36     static float var_4 = 0;

    37 

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

    39         int i = 0;

    40 

    41         for (String var_tmp = var_2; i < 11; var_1 = 0, i++) {

    42             var_2 = var_2;

    43             var_4 *= (var_4 *= (var_3 = 0));

    44         }

    45 

    46         System.out.println("var_1 = " + var_1);

    47         System.out.println("var_2 = " + var_2);

    48         System.out.println("var_3 = " + var_3);

    49         System.out.println("var_4 = " + var_4);

    50     }

    51 }