jdk8-mips64-public/hotspot: test/compiler/intrinsics/mathexact/GVNTest.java@b957c650babb

8028207: assert(_outcnt==1) failed: not unique in compile.cpp
Reviewed-by: iveresov, kvn

     1 /*

     2  * Copyright (c) 2013, 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  */

    24 /*

    25  * @test

    26  * @bug 8028207

    27  * @summary Verify that GVN doesn't mess up the two addExacts

    28  * @compile GVNTest.java

    29  * @run main GVNTest

    30  *

    31  */

    33 public class GVNTest {

    34   public static int result = 0;

    35   public static int value = 93;

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

    37     for (int i = 0; i < 50000; ++i) {

    38       result = runTest(value + i);

    39       result = runTest(value + i);

    40       result = runTest(value + i);

    41       result = runTest(value + i);

    42       result = runTest(value + i);

    43     }

    44   }

    46   public static int runTest(int value) {

    47     int v = value + value;

    48     int sum = 0;

    49     if (v < 4032) {

    50       for (int i = 0; i < 1023; ++i) {

    51         sum += Math.addExact(value, value);

    52       }

    53     } else {

    54       for (int i = 0; i < 321; ++i) {

    55         sum += Math.addExact(value, value);

    56       }

    57     }

    58     return sum + v;

    59   }

    60 }

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