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 7179138
27 * @summary Incorrect result with String concatenation optimization
28 * @run main/othervm -Xbatch -XX:+IgnoreUnrecognizedVMOptions -XX:-TieredCompilation Test7179138_1
29 *
30 * @author Skip Balk
31 */
32
33 public class Test7179138_1 {
34 public static void main(String[] args) throws Exception {
35 System.out.println("Java Version: " + System.getProperty("java.vm.version"));
36 long[] durations = new long[60];
37 for (int i = 0; i < 100000; i++) {
38 // this empty for-loop is required to reproduce this bug
39 for (long duration : durations) {
40 // do nothing
41 }
42 {
43 String s = "test";
44 int len = s.length();
45
46 s = new StringBuilder(String.valueOf(s)).append(s).toString();
47 len = len + len;
48
49 s = new StringBuilder(String.valueOf(s)).append(s).toString();
50 len = len + len;
51
52 s = new StringBuilder(String.valueOf(s)).append(s).toString();
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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 7179138
27 * @summary Incorrect result with String concatenation optimization
28 *
29 * @run main/othervm -Xbatch -XX:+IgnoreUnrecognizedVMOptions -XX:-TieredCompilation
30 * compiler.c2.Test7179138_1
31 *
32 * @author Skip Balk
33 */
34
35 package compiler.c2;
36
37 public class Test7179138_1 {
38 public static void main(String[] args) throws Exception {
39 System.out.println("Java Version: " + System.getProperty("java.vm.version"));
40 long[] durations = new long[60];
41 for (int i = 0; i < 100000; i++) {
42 // this empty for-loop is required to reproduce this bug
43 for (long duration : durations) {
44 // do nothing
45 }
46 {
47 String s = "test";
48 int len = s.length();
49
50 s = new StringBuilder(String.valueOf(s)).append(s).toString();
51 len = len + len;
52
53 s = new StringBuilder(String.valueOf(s)).append(s).toString();
54 len = len + len;
55
56 s = new StringBuilder(String.valueOf(s)).append(s).toString();
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