jdk8-mips64-public/hotspot: test/compiler/6805724/Test6805724.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 (c) 2009, 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 6805724

    27  * @summary ModLNode::Ideal() generates functionally incorrect graph when divisor is any (2^k-1) constant.

    28  *

    29  * @run main/othervm -Xcomp -XX:CompileOnly=Test6805724.fcomp Test6805724

    30  */

    32 import java.net.URLClassLoader;

    34 public class Test6805724 implements Runnable {

    35     // Initialize DIVISOR so that it is final in this class.

    36     static final long DIVISOR;  // 2^k-1 constant

    38     static {

    39         long value = 0;

    40         try {

    41             value = Long.decode(System.getProperty("divisor"));

    42         } catch (Throwable t) {

    43             // This one is required for the Class.forName() in main.

    44         }

    45         DIVISOR = value;

    46     }

    48     static long fint(long x) {

    49         return x % DIVISOR;

    50     }

    52     static long fcomp(long x) {

    53         return x % DIVISOR;

    54     }

    56     public void run() {

    57         long a = 0x617981E1L;

    59         long expected = fint(a);

    60         long result = fcomp(a);

    62         if (result != expected)

    63             throw new InternalError(result + " != " + expected);

    64     }

    66     public static void main(String args[]) throws Exception {

    67         Class cl = Class.forName("Test6805724");

    68         URLClassLoader apploader = (URLClassLoader) cl.getClassLoader();

    70         // Iterate over all 2^k-1 divisors.

    71         for (int k = 1; k < Long.SIZE; k++) {

    72             long divisor = (1L << k) - 1;

    73             System.setProperty("divisor", "" + divisor);

    74             ClassLoader loader = new URLClassLoader(apploader.getURLs(), apploader.getParent());

    75             Class c = loader.loadClass("Test6805724");

    76             Runnable r = (Runnable) c.newInstance();

    77             r.run();

    78         }

    79     }

    80 }

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

test/compiler/6805724/Test6805724.java@dbb05f6d93c4

test/compiler/6805724/Test6805724.java