hotspot/test/compiler/6799693/Test.java
author kvn
Thu, 05 Feb 2009 14:43:58 -0800
changeset 2029 4ba79339bc0c
child 5547 f4b087cbb361
permissions -rw-r--r--
6799693: Server compiler leads to data corruption when expression throws an Exception Summary: Use merged memory state for an allocation's slow path. Reviewed-by: never
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
2029
4ba79339bc0c 6799693: Server compiler leads to data corruption when expression throws an Exception
kvn
parents:
diff changeset
     1
/*
4ba79339bc0c 6799693: Server compiler leads to data corruption when expression throws an Exception
kvn
parents:
diff changeset
     2
 * Copyright 2009 Sun Microsystems, Inc.  All Rights Reserved.
4ba79339bc0c 6799693: Server compiler leads to data corruption when expression throws an Exception
kvn
parents:
diff changeset
     3
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4ba79339bc0c 6799693: Server compiler leads to data corruption when expression throws an Exception
kvn
parents:
diff changeset
     4
 *
4ba79339bc0c 6799693: Server compiler leads to data corruption when expression throws an Exception
kvn
parents:
diff changeset
     5
 * This code is free software; you can redistribute it and/or modify it
4ba79339bc0c 6799693: Server compiler leads to data corruption when expression throws an Exception
kvn
parents:
diff changeset
     6
 * under the terms of the GNU General Public License version 2 only, as
4ba79339bc0c 6799693: Server compiler leads to data corruption when expression throws an Exception
kvn
parents:
diff changeset
     7
 * published by the Free Software Foundation.
4ba79339bc0c 6799693: Server compiler leads to data corruption when expression throws an Exception
kvn
parents:
diff changeset
     8
 *
4ba79339bc0c 6799693: Server compiler leads to data corruption when expression throws an Exception
kvn
parents:
diff changeset
     9
 * This code is distributed in the hope that it will be useful, but WITHOUT
4ba79339bc0c 6799693: Server compiler leads to data corruption when expression throws an Exception
kvn
parents:
diff changeset
    10
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
4ba79339bc0c 6799693: Server compiler leads to data corruption when expression throws an Exception
kvn
parents:
diff changeset
    11
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
4ba79339bc0c 6799693: Server compiler leads to data corruption when expression throws an Exception
kvn
parents:
diff changeset
    12
 * version 2 for more details (a copy is included in the LICENSE file that
4ba79339bc0c 6799693: Server compiler leads to data corruption when expression throws an Exception
kvn
parents:
diff changeset
    13
 * accompanied this code).
4ba79339bc0c 6799693: Server compiler leads to data corruption when expression throws an Exception
kvn
parents:
diff changeset
    14
 *
4ba79339bc0c 6799693: Server compiler leads to data corruption when expression throws an Exception
kvn
parents:
diff changeset
    15
 * You should have received a copy of the GNU General Public License version
4ba79339bc0c 6799693: Server compiler leads to data corruption when expression throws an Exception
kvn
parents:
diff changeset
    16
 * 2 along with this work; if not, write to the Free Software Foundation,
4ba79339bc0c 6799693: Server compiler leads to data corruption when expression throws an Exception
kvn
parents:
diff changeset
    17
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
4ba79339bc0c 6799693: Server compiler leads to data corruption when expression throws an Exception
kvn
parents:
diff changeset
    18
 *
4ba79339bc0c 6799693: Server compiler leads to data corruption when expression throws an Exception
kvn
parents:
diff changeset
    19
 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
4ba79339bc0c 6799693: Server compiler leads to data corruption when expression throws an Exception
kvn
parents:
diff changeset
    20
 * CA 95054 USA or visit www.sun.com if you need additional information or
4ba79339bc0c 6799693: Server compiler leads to data corruption when expression throws an Exception
kvn
parents:
diff changeset
    21
 * have any questions.
4ba79339bc0c 6799693: Server compiler leads to data corruption when expression throws an Exception
kvn
parents:
diff changeset
    22
 *
4ba79339bc0c 6799693: Server compiler leads to data corruption when expression throws an Exception
kvn
parents:
diff changeset
    23
 */
4ba79339bc0c 6799693: Server compiler leads to data corruption when expression throws an Exception
kvn
parents:
diff changeset
    24
4ba79339bc0c 6799693: Server compiler leads to data corruption when expression throws an Exception
kvn
parents:
diff changeset
    25
/*
4ba79339bc0c 6799693: Server compiler leads to data corruption when expression throws an Exception
kvn
parents:
diff changeset
    26
 * @test
4ba79339bc0c 6799693: Server compiler leads to data corruption when expression throws an Exception
kvn
parents:
diff changeset
    27
 * @bug 6799693
4ba79339bc0c 6799693: Server compiler leads to data corruption when expression throws an Exception
kvn
parents:
diff changeset
    28
 * @summary Server compiler leads to data corruption when expression throws an Exception
4ba79339bc0c 6799693: Server compiler leads to data corruption when expression throws an Exception
kvn
parents:
diff changeset
    29
 * @run main/othervm -Xcomp -XX:CompileOnly=Test Test
4ba79339bc0c 6799693: Server compiler leads to data corruption when expression throws an Exception
kvn
parents:
diff changeset
    30
 */
4ba79339bc0c 6799693: Server compiler leads to data corruption when expression throws an Exception
kvn
parents:
diff changeset
    31
4ba79339bc0c 6799693: Server compiler leads to data corruption when expression throws an Exception
kvn
parents:
diff changeset
    32
public class Test {
4ba79339bc0c 6799693: Server compiler leads to data corruption when expression throws an Exception
kvn
parents:
diff changeset
    33
   static int var_bad = 1;
4ba79339bc0c 6799693: Server compiler leads to data corruption when expression throws an Exception
kvn
parents:
diff changeset
    34
4ba79339bc0c 6799693: Server compiler leads to data corruption when expression throws an Exception
kvn
parents:
diff changeset
    35
   public static void main(String[] args)
4ba79339bc0c 6799693: Server compiler leads to data corruption when expression throws an Exception
kvn
parents:
diff changeset
    36
   {
4ba79339bc0c 6799693: Server compiler leads to data corruption when expression throws an Exception
kvn
parents:
diff changeset
    37
      var_bad++;
4ba79339bc0c 6799693: Server compiler leads to data corruption when expression throws an Exception
kvn
parents:
diff changeset
    38
4ba79339bc0c 6799693: Server compiler leads to data corruption when expression throws an Exception
kvn
parents:
diff changeset
    39
      try {
4ba79339bc0c 6799693: Server compiler leads to data corruption when expression throws an Exception
kvn
parents:
diff changeset
    40
         for (int i = 0; i < 10; i++) (new byte[((byte)-1 << i)])[0]  = 0;
4ba79339bc0c 6799693: Server compiler leads to data corruption when expression throws an Exception
kvn
parents:
diff changeset
    41
      }
4ba79339bc0c 6799693: Server compiler leads to data corruption when expression throws an Exception
kvn
parents:
diff changeset
    42
      catch (Exception e) { System.out.println("Got " + e); }
4ba79339bc0c 6799693: Server compiler leads to data corruption when expression throws an Exception
kvn
parents:
diff changeset
    43
4ba79339bc0c 6799693: Server compiler leads to data corruption when expression throws an Exception
kvn
parents:
diff changeset
    44
      System.out.println("Test.var_bad = " +  var_bad + " (expected 2)\n");
4ba79339bc0c 6799693: Server compiler leads to data corruption when expression throws an Exception
kvn
parents:
diff changeset
    45
   }
4ba79339bc0c 6799693: Server compiler leads to data corruption when expression throws an Exception
kvn
parents:
diff changeset
    46
}
4ba79339bc0c 6799693: Server compiler leads to data corruption when expression throws an Exception
kvn
parents:
diff changeset
    47