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 /**
26 * @test
27 * @bug 8136473
28 * @summary Mismatched stores on same slice possible with Unsafe.Put*Unaligned methods
29 * @modules java.base/jdk.internal.misc
30 * @run main/othervm -XX:-UseOnStackReplacement -XX:-BackgroundCompilation TestUnsafeUnalignedMismatchedAccesses
31 * @run main/othervm -XX:-UseOnStackReplacement -XX:-BackgroundCompilation -XX:+UnlockDiagnosticVMOptions -XX:-UseUnalignedAccesses TestUnsafeUnalignedMismatchedAccesses
32 *
33 */
34
35 import java.lang.reflect.*;
36 import jdk.internal.misc.Unsafe;
37
38 public class TestUnsafeUnalignedMismatchedAccesses {
39
40 private static final Unsafe UNSAFE;
41
42 static {
43 try {
44 Field unsafeField = Unsafe.class.getDeclaredField("theUnsafe");
45 unsafeField.setAccessible(true);
46 UNSAFE = (Unsafe) unsafeField.get(null);
47 }
48 catch (Exception e) {
49 throw new AssertionError(e);
50 }
51 }
52
53 static void test1(byte[] array) {
54 array[0] = 0;
55 UNSAFE.putIntUnaligned(array, UNSAFE.ARRAY_BYTE_BASE_OFFSET, 0);
56 array[0] = 0;
57 }
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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 /**
26 * @test
27 * @bug 8136473
28 * @summary Mismatched stores on same slice possible with Unsafe.Put*Unaligned methods
29 * @modules java.base/jdk.internal.misc
30 *
31 * @run main/othervm -XX:-UseOnStackReplacement -XX:-BackgroundCompilation
32 * compiler.intrinsics.unsafe.TestUnsafeUnalignedMismatchedAccesses
33 * @run main/othervm -XX:-UseOnStackReplacement -XX:-BackgroundCompilation
34 * -XX:+UnlockDiagnosticVMOptions -XX:-UseUnalignedAccesses
35 * compiler.intrinsics.unsafe.TestUnsafeUnalignedMismatchedAccesses
36 */
37
38 package compiler.intrinsics.unsafe;
39
40 import jdk.internal.misc.Unsafe;
41
42 import java.lang.reflect.Field;
43
44 public class TestUnsafeUnalignedMismatchedAccesses {
45
46 private static final Unsafe UNSAFE;
47
48 static {
49 try {
50 Field unsafeField = Unsafe.class.getDeclaredField("theUnsafe");
51 unsafeField.setAccessible(true);
52 UNSAFE = (Unsafe) unsafeField.get(null);
53 }
54 catch (Exception e) {
55 throw new AssertionError(e);
56 }
57 }
58
59 static void test1(byte[] array) {
60 array[0] = 0;
61 UNSAFE.putIntUnaligned(array, UNSAFE.ARRAY_BYTE_BASE_OFFSET, 0);
62 array[0] = 0;
63 }
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