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
26 * @bug 8072016
27 * @summary Infinite deoptimization/recompilation cycles in case of arraycopy with tightly coupled allocation
28 * @library /testlibrary /../../test/lib /compiler/whitebox
29 * @modules java.base/sun.misc
30 * java.management
31 * @build TestArrayCopyNoInitDeopt
32 * @run main ClassFileInstaller sun.hotspot.WhiteBox
33 * @run main ClassFileInstaller jdk.test.lib.Platform
34 * @run main/othervm -Xmixed -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
35 * -XX:-BackgroundCompilation -XX:-UseOnStackReplacement -XX:TypeProfileLevel=020
36 * TestArrayCopyNoInitDeopt
37 *
38 */
39
40
41 import sun.hotspot.WhiteBox;
42 import sun.hotspot.code.NMethod;
43 import jdk.test.lib.Platform;
44 import java.lang.reflect.*;
45
46 public class TestArrayCopyNoInitDeopt {
47
48 public static int[] m1(Object src) {
49 if (src == null) return null;
50 int[] dest = new int[10];
51 try {
52 System.arraycopy(src, 0, dest, 0, 10);
53 } catch (ArrayStoreException npe) {
54 }
55 return dest;
56 }
57
58 static Object m2_src(Object src) {
59 return src;
60 }
61
62 public static int[] m2(Object src) {
63 if (src == null) return null;
64 src = m2_src(src);
|
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
26 * @bug 8072016
27 * @summary Infinite deoptimization/recompilation cycles in case of arraycopy with tightly coupled allocation
28 * @library /testlibrary /../../test/lib /
29 * @modules java.base/sun.misc
30 * java.management
31 * @build TestArrayCopyNoInitDeopt
32 * @run main ClassFileInstaller sun.hotspot.WhiteBox
33 * @run main ClassFileInstaller jdk.test.lib.Platform
34 * @run main/othervm -Xmixed -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
35 * -XX:-BackgroundCompilation -XX:-UseOnStackReplacement -XX:TypeProfileLevel=020
36 * TestArrayCopyNoInitDeopt
37 *
38 */
39
40
41 import sun.hotspot.WhiteBox;
42 import sun.hotspot.code.NMethod;
43 import jdk.test.lib.Platform;
44 import java.lang.reflect.*;
45 import compiler.whitebox.CompilerWhiteBoxTest;
46
47 public class TestArrayCopyNoInitDeopt {
48
49 public static int[] m1(Object src) {
50 if (src == null) return null;
51 int[] dest = new int[10];
52 try {
53 System.arraycopy(src, 0, dest, 0, 10);
54 } catch (ArrayStoreException npe) {
55 }
56 return dest;
57 }
58
59 static Object m2_src(Object src) {
60 return src;
61 }
62
63 public static int[] m2(Object src) {
64 if (src == null) return null;
65 src = m2_src(src);
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