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  */
  23 
  24 /**
  25  * @test TestUnsafeOffheapSwap
  26  * @summary Miscompilation in Unsafe off-heap swap routines
  27  * @key gc
  28  * @requires vm.gc.Shenandoah
  29  * @modules java.base/jdk.internal.misc:+open
  30  *
  31  * @run main/othervm -XX:-UseOnStackReplacement -XX:-BackgroundCompilation -XX:-TieredCompilation
  32  *                   -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC
  33  *                   TestUnsafeOffheapSwap
  34  */
  35 
  36 import java.util.*;
  37 import jdk.internal.misc.Unsafe;
  38 
  39 public class TestUnsafeOffheapSwap {
  40 
  41     static final int SIZE = 10000;
  42     static final long SEED = 1;
  43 
  44     static final jdk.internal.misc.Unsafe UNSAFE = Unsafe.getUnsafe();
  45     static final int SCALE = UNSAFE.ARRAY_INT_INDEX_SCALE;
  46 
  47     static Memory mem;
  48     static int[] arr;

   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  */
  23 
  24 /**
  25  * @test TestUnsafeOffheapSwap
  26  * @summary Miscompilation in Unsafe off-heap swap routines
  27  * @key gc
  28  * @requires vm.gc.Shenandoah & !vm.graal.enabled
  29  * @modules java.base/jdk.internal.misc:+open
  30  *
  31  * @run main/othervm -XX:-UseOnStackReplacement -XX:-BackgroundCompilation -XX:-TieredCompilation
  32  *                   -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC
  33  *                   TestUnsafeOffheapSwap
  34  */
  35 
  36 import java.util.*;
  37 import jdk.internal.misc.Unsafe;
  38 
  39 public class TestUnsafeOffheapSwap {
  40 
  41     static final int SIZE = 10000;
  42     static final long SEED = 1;
  43 
  44     static final jdk.internal.misc.Unsafe UNSAFE = Unsafe.getUnsafe();
  45     static final int SCALE = UNSAFE.ARRAY_INT_INDEX_SCALE;
  46 
  47     static Memory mem;
  48     static int[] arr;