7 * published by the Free Software Foundation.
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 TestNullCheck
26 * @summary implicit null check on brooks pointer must not cause crash
27 * @requires vm.gc.Shenandoah & !vm.graal.enabled & (vm.bits == "64")
28 * @run main/othervm -XX:-BackgroundCompilation -XX:-UseOnStackReplacement -XX:-TieredCompilation
29 * -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC
30 * -Xmx4G -XX:HeapBaseMinAddress=0x800000000 TestNullCheck
31 */
32
33 // HeapBaseMinAddress above forces compressed oops with a base
34
35 public class TestNullCheck {
36
37 int f;
38
39 static int test1(TestNullCheck o) {
40 return o.f;
41 }
42
43 static TestNullCheck static_obj = new TestNullCheck();
44
45 static int test2() {
46 return static_obj.f;
47 }
|
7 * published by the Free Software Foundation.
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 TestNullCheck
26 * @summary implicit null check on brooks pointer must not cause crash
27 * @requires vm.gc.Shenandoah
28 * @requires vm.bits == "64"
29 * @run main/othervm -XX:-BackgroundCompilation -XX:-UseOnStackReplacement -XX:-TieredCompilation
30 * -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC
31 * -Xmx4G -XX:HeapBaseMinAddress=0x800000000 TestNullCheck
32 */
33
34 // HeapBaseMinAddress above forces compressed oops with a base
35
36 public class TestNullCheck {
37
38 int f;
39
40 static int test1(TestNullCheck o) {
41 return o.f;
42 }
43
44 static TestNullCheck static_obj = new TestNullCheck();
45
46 static int test2() {
47 return static_obj.f;
48 }
|