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 NullCheckDroppingsTest
26 * @bug 8054492
27 * @summary "Casting can result in redundant null checks in generated code"
28 * @library /testlibrary /../../test/lib /testlibrary/com/oracle/java/testlibrary
29 * @build NullCheckDroppingsTest
30 * @run main ClassFileInstaller sun.hotspot.WhiteBox
31 * sun.hotspot.WhiteBox$WhiteBoxPermission
32 * @run main ClassFileInstaller com.oracle.java.testlibrary.Platform
33 * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
34 * -Xmixed -XX:-BackgroundCompilation -XX:-TieredCompilation -XX:CompileThreshold=1000
35 * -XX:CompileCommand=exclude,NullCheckDroppingsTest::runTest NullCheckDroppingsTest
36 */
37
38 import sun.hotspot.WhiteBox;
39 import sun.hotspot.code.NMethod;
40 import com.oracle.java.testlibrary.Platform;
41
42 import java.lang.reflect.Method;
43 import java.lang.invoke.MethodHandle;
44 import java.lang.invoke.MethodHandles;
45 import java.lang.invoke.MethodType;
46 import java.util.function.BiFunction;
47
48 public class NullCheckDroppingsTest {
49
|
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 /*
25 * @test NullCheckDroppingsTest
26 * @bug 8054492
27 * @summary "Casting can result in redundant null checks in generated code"
28 * @library /testlibrary /../../test/lib /testlibrary/com/oracle/java/testlibrary
29 * @build com.oracle.java.testlibrary.* NullCheckDroppingsTest
30 * @run main ClassFileInstaller sun.hotspot.WhiteBox
31 * sun.hotspot.WhiteBox$WhiteBoxPermission
32 * @run main ClassFileInstaller com.oracle.java.testlibrary.Platform
33 * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
34 * -Xmixed -XX:-BackgroundCompilation -XX:-TieredCompilation -XX:CompileThreshold=1000
35 * -XX:CompileCommand=exclude,NullCheckDroppingsTest::runTest NullCheckDroppingsTest
36 */
37
38 import sun.hotspot.WhiteBox;
39 import sun.hotspot.code.NMethod;
40 import com.oracle.java.testlibrary.Platform;
41
42 import java.lang.reflect.Method;
43 import java.lang.invoke.MethodHandle;
44 import java.lang.invoke.MethodHandles;
45 import java.lang.invoke.MethodType;
46 import java.util.function.BiFunction;
47
48 public class NullCheckDroppingsTest {
49
|