jdk8-mips64-public/hotspot: test/compiler/6851282/Test.java@0803c0f69b51 (annotated)

test/compiler/6851282/Test.java@0803c0f69b51 (annotated)

test/compiler/6851282/Test.java

Tue, 31 Aug 2010 17:23:45 -0700

author: trims
date: Tue, 31 Aug 2010 17:23:45 -0700
changeset 2093: 0803c0f69b51
parent 1907: c18cbe5936b8
child 6876: 710a3c8b516e
permissions: -rw-r--r--

Added tag hs19-b06 for changeset 6c43216df135

 /*
  * 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 6851282
  * @summary JIT miscompilation results in null entry in array when using CompressedOops
  *
  * @run main/othervm/timeout=600 -Xmx256m -XX:+IgnoreUnrecognizedVMOptions -XX:+UseCompressedOops Test
  */
 import java.util.ArrayList;
 import java.util.List;
 public class Test {
   void foo(A a, A[] as) {
     for (A a1 : as) {
       B[] filtered = a.c(a1);
       for (B b : filtered) {
         if (b == null) {
           System.out.println("bug: b == null");
           System.exit(97);
         }
       }
     }
   }
   public static void main(String[] args) {
     List<A> as = new ArrayList<A>();
     for (int i = 0; i < 5000; i++) {
       List<B> bs = new ArrayList<B>();
       for (int j = i; j < i + 1000; j++)
         bs.add(new B(j));
       as.add(new A(bs.toArray(new B[0])));
     }
     new Test().foo(as.get(0), as.subList(1, as.size()).toArray(new A[0]));
   }
 }
 class A {
   final B[] bs;
   public A(B[] bs) {
     this.bs = bs;
   }
   final B[] c(final A a) {
     return new BoxedArray<B>(bs).filter(new Function<B, Boolean>() {
       public Boolean apply(B arg) {
         for (B b : a.bs) {
           if (b.d == arg.d)
             return true;
         }
         return false;
       }
     });
   }
 }
 class BoxedArray<T> {
   private final T[] array;
   BoxedArray(T[] array) {
     this.array = array;
   }
   public T[] filter(Function<T, Boolean> function) {
     boolean[] include = new boolean[array.length];
     int len = 0;
     int i = 0;
     while (i < array.length) {
       if (function.apply(array[i])) {
         include[i] = true;
         len += 1;
       }
       i += 1;
     }
     T[] result = (T[]) java.lang.reflect.Array.newInstance(array.getClass().getComponentType(), len);
     len = 0;
     i = 0;
     while (len < result.length) {
       if (include[i]) {
         result[len] = array[i];
         len += 1;
       }
       i += 1;
     }
     return result;
   }
 }
 interface Function<T, R> {
   R apply(T arg);
 }
 class B {
   final int d;
   public B(int d) {
     this.d = d;
   }
 }

Mercurial > jdk8-mips64-public > hotspot / annotate

test/compiler/6851282/Test.java@0803c0f69b51 (annotated)

test/compiler/6851282/Test.java