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
26 * @bug 8237007
27 * @summary Shenandoah: assert(_base == Tuple) failure during C2 compilation
28 * @requires vm.flavor == "server"
29 * @requires vm.gc.Shenandoah & !vm.graal.enabled
30 *
31 * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:-BackgroundCompilation -XX:+UseShenandoahGC LRBRightAfterMemBar
32 *
33 */
34
35 public class LRBRightAfterMemBar {
36 private static Object field1;
37 private static Object field2;
38 static volatile int barrier;
39
40 public static void main(String[] args) {
41 for (int i = 0; i < 20_000; i++) {
42 test(true, true, new Object());
43 test(false, false, new Object());
44 }
45 }
46
47 private static Object test(boolean flag, boolean flag2, Object o2) {
48 for (int i = 0; i < 10; i++) {
49 barrier = 0x42; // Membar
|
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
26 * @bug 8237007
27 * @summary Shenandoah: assert(_base == Tuple) failure during C2 compilation
28 * @requires vm.flavor == "server"
29 * @requires vm.gc.Shenandoah
30 *
31 * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:-BackgroundCompilation -XX:+UseShenandoahGC LRBRightAfterMemBar
32 *
33 */
34
35 public class LRBRightAfterMemBar {
36 private static Object field1;
37 private static Object field2;
38 static volatile int barrier;
39
40 public static void main(String[] args) {
41 for (int i = 0; i < 20_000; i++) {
42 test(true, true, new Object());
43 test(false, false, new Object());
44 }
45 }
46
47 private static Object test(boolean flag, boolean flag2, Object o2) {
48 for (int i = 0; i < 10; i++) {
49 barrier = 0x42; // Membar
|