1 /*

     2  * Copyright (c) 2011, 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 7048332

    28  * @summary Cadd_cmpLTMask doesn't handle 64-bit tmp register properly

    29  *

    30  * @run main/othervm -Xbatch compiler.c2.Test7048332

    31  */

    32 

    33 package compiler.c2;

    34 

    35 public class Test7048332 {

    36 

    37     static int capacity = 2;

    38     static int first = 1;

    39     static int last = 2;

    40 

    41     static int test(int i1, int i2, int i3, int i4, int i5, int i6) {

    42         final int result;

    43         if (last >= first) {

    44             result = last - first;

    45         } else {

    46             result = last - first + capacity;

    47         }

    48         return result;

    49     }

    50 

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

    52         for (int i = 0; i < 11000; i++) {

    53             last = (i & 1) << 1; // 0 or 2

    54             int k = test(1, 2, 3, 4, 5, 6);

    55             if (k != 1) {

    56                 System.out.println("FAILED: " + k + " != 1");

    57                 System.exit(97);

    58             }

    59         }

    60     }

    61 }