jdk8-mips64-public/hotspot: test/compiler/6805724/Test6805724.java@dbb05f6d93c4 (annotated)

test/compiler/6805724/Test6805724.java@dbb05f6d93c4 (annotated)

test/compiler/6805724/Test6805724.java

Mon, 28 Jul 2014 15:06:38 -0700

author: fzhinkin
date: Mon, 28 Jul 2014 15:06:38 -0700
changeset 6997: dbb05f6d93c4
parent 1907: c18cbe5936b8
child 6876: 710a3c8b516e
permissions: -rw-r--r--

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

 /*
  * Copyright (c) 2009, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  */
 /**
  * @test
  * @bug 6805724
  * @summary ModLNode::Ideal() generates functionally incorrect graph when divisor is any (2^k-1) constant.
  *
  * @run main/othervm -Xcomp -XX:CompileOnly=Test6805724.fcomp Test6805724
  */
 import java.net.URLClassLoader;
 public class Test6805724 implements Runnable {
     // Initialize DIVISOR so that it is final in this class.
     static final long DIVISOR;  // 2^k-1 constant
     static {
         long value = 0;
         try {
             value = Long.decode(System.getProperty("divisor"));
         } catch (Throwable t) {
             // This one is required for the Class.forName() in main.
         }
         DIVISOR = value;
     }
     static long fint(long x) {
         return x % DIVISOR;
     }
     static long fcomp(long x) {
         return x % DIVISOR;
     }
     public void run() {
         long a = 0x617981E1L;
         long expected = fint(a);
         long result = fcomp(a);
         if (result != expected)
             throw new InternalError(result + " != " + expected);
     }
     public static void main(String args[]) throws Exception {
         Class cl = Class.forName("Test6805724");
         URLClassLoader apploader = (URLClassLoader) cl.getClassLoader();
         // Iterate over all 2^k-1 divisors.
         for (int k = 1; k < Long.SIZE; k++) {
             long divisor = (1L << k) - 1;
             System.setProperty("divisor", "" + divisor);
             ClassLoader loader = new URLClassLoader(apploader.getURLs(), apploader.getParent());
             Class c = loader.loadClass("Test6805724");
             Runnable r = (Runnable) c.newInstance();
             r.run();
         }
     }
 }

Mercurial > jdk8-mips64-public > hotspot / annotate

test/compiler/6805724/Test6805724.java@dbb05f6d93c4 (annotated)

test/compiler/6805724/Test6805724.java