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 8073184
28 * @summary CastII that guards counted loops confuses range check elimination with LoopLimitCheck off
29 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:CompileOnly=TestCastIINoLoopLimitCheck.m -Xcomp TestCastIINoLoopLimitCheck
30 *
31 */
32
33 /*
34 * The test was originally run with
35 *
36 * -XX:+UnlockDiagnosticVMOptions -XX:-LoopLimitCheck
37 *
38 * to trigger a problem with code guarded with !LoopLimitCheck.
39 * JDK-8072422 has removed that code but kept the test because the
40 * test generates an interesting graph shape.
41 */
42 public class TestCastIINoLoopLimitCheck {
43
44 static void m(int i, int index, char[] buf) {
45 while (i >= 65536) {
46 i = i / 100;
47 buf [--index] = 0;
48 buf [--index] = 1;
49 }
50 }
51
52 static public void main(String[] args) {
|
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 8073184
28 * @summary CastII that guards counted loops confuses range check elimination with LoopLimitCheck off
29 *
30 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -Xcomp
31 * -XX:CompileCommand=compileonly,compiler.loopopt.TestCastIINoLoopLimitCheck::m
32 * compiler.loopopts.TestCastIINoLoopLimitCheck
33 */
34
35 package compiler.loopopts;
36 /*
37 * The test was originally run with
38 *
39 * -XX:+UnlockDiagnosticVMOptions -XX:-LoopLimitCheck
40 *
41 * to trigger a problem with code guarded with !LoopLimitCheck.
42 * JDK-8072422 has removed that code but kept the test because the
43 * test generates an interesting graph shape.
44 */
45 public class TestCastIINoLoopLimitCheck {
46
47 static void m(int i, int index, char[] buf) {
48 while (i >= 65536) {
49 i = i / 100;
50 buf [--index] = 0;
51 buf [--index] = 1;
52 }
53 }
54
55 static public void main(String[] args) {
|