/*
* 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 6826736
* @summary CMS: core dump with -XX:+UseCompressedOops
*
* @run main/othervm/timeout=600 -XX:+IgnoreUnrecognizedVMOptions -Xbatch -XX:+ScavengeALot -XX:+UseCompressedOops -XX:HeapBaseMinAddress=32g -XX:CompileThreshold=100 -XX:CompileOnly=Test.test -XX:-BlockLayoutRotateLoops -XX:LoopUnrollLimit=0 Test
*/
public class Test {
int[] arr;
int[] arr2;
int test(int r) {
for (int i = 0; i < 100; i++) {
for (int j = i; j < 100; j++) {
int a = 0;
for (long k = 0; k < 100; k++) {
a += k;
}
if (arr != null)
a = arr[j];
r += a;
}
}
return r;
}
public static void main(String[] args) {
int r = 0;
Test t = new Test();
for (int i = 0; i < 100; i++) {
t.arr = new int[100];
r = t.test(r);
}
System.out.println("Warmup 1 is done.");
for (int i = 0; i < 100; i++) {
t.arr = null;
r = t.test(r);
}
System.out.println("Warmup 2 is done.");
for (int i = 0; i < 100; i++) {
t.arr = new int[100];
r = t.test(r);
}
System.out.println("Warmup is done.");
for (int i = 0; i < 100; i++) {
t.arr = new int[1000000];
t.arr = null;
r = t.test(r);
}
}
}