hotspot/test/compiler/5091921/Test6753639.java
author jlaskey
Tue, 23 Jul 2013 12:00:29 -0300
changeset 19089 51cfdcf21d35
parent 9446 748a37b25d10
permissions -rw-r--r--
8021130: Comments need to be tokens Reviewed-by: lagergren, attila Contributed-by: james.laskey@oracle.com
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
9446
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
     1
/*
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
     2
 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
     3
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
     4
 *
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
     5
 * This code is free software; you can redistribute it and/or modify it
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
     6
 * under the terms of the GNU General Public License version 2 only, as
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
     7
 * published by the Free Software Foundation.
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
     8
 *
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
     9
 * This code is distributed in the hope that it will be useful, but WITHOUT
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
    10
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
    11
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
    12
 * version 2 for more details (a copy is included in the LICENSE file that
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
    13
 * accompanied this code).
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
    14
 *
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
    15
 * You should have received a copy of the GNU General Public License version
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
    16
 * 2 along with this work; if not, write to the Free Software Foundation,
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
    17
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
    18
 *
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
    19
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
    20
 * or visit www.oracle.com if you need additional information or have any
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
    21
 * questions.
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
    22
 *
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
    23
 */
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
    24
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
    25
/**
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
    26
 * @test
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
    27
 * @bug 6753639
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
    28
 * @summary Strange optimisation in for loop with cyclic integer condition
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
    29
 *
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
    30
 * @run main/othervm -Xbatch Test6753639
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
    31
 */
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
    32
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
    33
public class Test6753639 {
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
    34
    public static void main(String[] args) throws InterruptedException {
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
    35
        int END = Integer.MAX_VALUE;
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
    36
        int count = 0;
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
    37
        for(int i = Integer.MAX_VALUE - 5; i <= END; i++) {
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
    38
            count++;
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
    39
            if (count > 100000) {
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
    40
                System.out.println("Passed");
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
    41
                System.exit(95);
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
    42
            }
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
    43
        }
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
    44
        System.out.println("broken " + count);
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
    45
        System.out.println("FAILED");
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
    46
        System.exit(97);
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
    47
    }
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
    48
}
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
    49
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents:
diff changeset
    50