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 /**
26 * @test
27 * @bug 6968348
28 * @summary Byteswapped memory access can point to wrong location after JIT
29 *
30 * @modules java.base/jdk.internal.misc
31 * @run main Test6968348
32 */
33
34 import jdk.internal.misc.Unsafe;
35 import java.lang.reflect.*;
36
37 public class Test6968348 {
38 static Unsafe unsafe;
39 static final long[] buffer = new long[4096];
40 static int array_long_base_offset;
41
42 public static void main(String[] args) throws Exception {
43 Class c = Test6968348.class.getClassLoader().loadClass("jdk.internal.misc.Unsafe");
44 Field f = c.getDeclaredField("theUnsafe");
45 f.setAccessible(true);
46 unsafe = (Unsafe)f.get(c);
47 array_long_base_offset = unsafe.arrayBaseOffset(long[].class);
48
49 for (int n = 0; n < 100000; n++) {
50 test();
51 }
52 }
53
54 public static void test() {
55 for (long i = array_long_base_offset; i < 4096; i += 8) {
56 unsafe.putLong(buffer, i, Long.reverseBytes(i));
|
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 /**
26 * @test
27 * @bug 6968348
28 * @summary Byteswapped memory access can point to wrong location after JIT
29 * @modules java.base/jdk.internal.misc
30 *
31 * @run main compiler.c2.Test6968348
32 */
33
34 package compiler.c2;
35
36 import jdk.internal.misc.Unsafe;
37
38 import java.lang.reflect.Field;
39
40 public class Test6968348 {
41 static Unsafe unsafe;
42 static final long[] buffer = new long[4096];
43 static int array_long_base_offset;
44
45 public static void main(String[] args) throws Exception {
46 Class c = Test6968348.class.getClassLoader().loadClass("jdk.internal.misc.Unsafe");
47 Field f = c.getDeclaredField("theUnsafe");
48 f.setAccessible(true);
49 unsafe = (Unsafe)f.get(c);
50 array_long_base_offset = unsafe.arrayBaseOffset(long[].class);
51
52 for (int n = 0; n < 100000; n++) {
53 test();
54 }
55 }
56
57 public static void test() {
58 for (long i = array_long_base_offset; i < 4096; i += 8) {
59 unsafe.putLong(buffer, i, Long.reverseBytes(i));
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