jdk8-mips64-public/hotspot: test/compiler/8005033/Test8005033.java@dbb05f6d93c4

8051344: JVM crashed in Compile::start() during method parsing w/ UseRTMDeopt turned on
Summary: call rtm_deopt() only if there were no compilation bailouts before.
Reviewed-by: kvn

     1 /*

     2  * Copyright 2012 SAP AG.  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 8005033

    27  * @summary On sparcv9, C2's intrinsic for Integer.bitCount(OV) returns wrong result if OV is the result of an operation with int overflow.

    28  * @run main/othervm -Xcomp -XX:CompileOnly=Test8005033::testBitCount Test8005033

    29  * @author Richard Reingruber richard DOT reingruber AT sap DOT com

    30  */

    32 public class Test8005033 {

    33     public static int MINUS_ONE = -1;

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

    36         System.out.println("EXECUTING test.");

    37         Integer.bitCount(1);   // load class

    38         int expectedBitCount = 0;

    39         int calculatedBitCount = testBitCount();

    40         if (expectedBitCount != calculatedBitCount) {

    41             throw new InternalError("got " + calculatedBitCount + " but expected " + expectedBitCount);

    42         }

    43         System.out.println("SUCCESSFULLY passed test.");

    44     }

    46     // testBitCount will be compiled using the Integer.bitCount() intrinsic if possible

    47     private static int testBitCount() {

    48         return Integer.bitCount(MINUS_ONE+1);   // -1 + 1 => int overflow

    49     }

    50 }

Mercurial > jdk8-mips64-public > hotspot / file revision

test/compiler/8005033/Test8005033.java@dbb05f6d93c4

test/compiler/8005033/Test8005033.java