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 8005033
27 * @summary On sparcv9, C2's intrinsic for Integer.bitCount(OV) returns wrong result if OV is the result of an operation with int overflow.
28 * @run main/othervm -Xcomp -XX:CompileOnly=Test8005033::testBitCount Test8005033
29 * @author Richard Reingruber richard DOT reingruber AT sap DOT com
30 */
31
32 public class Test8005033 {
33 public static int MINUS_ONE = -1;
34
35 public static void main(String[] args) {
36 System.out.println("EXECUTING test.");
37 Integer.bitCount(1); // load class
38 int expectedBitCount = 0;
39 int calculatedBitCount = testBitCount();
40 if (expectedBitCount != calculatedBitCount) {
41 throw new InternalError("got " + calculatedBitCount + " but expected " + expectedBitCount);
42 }
43 System.out.println("SUCCESSFULLY passed test.");
44 }
45
46 // testBitCount will be compiled using the Integer.bitCount() intrinsic if possible
47 private static int testBitCount() {
48 return Integer.bitCount(MINUS_ONE+1); // -1 + 1 => int overflow
49 }
50 }
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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 8005033
27 * @summary On sparcv9, C2's intrinsic for Integer.bitCount(OV) returns wrong result if OV is the result of an operation with int overflow.
28 *
29 * @run main/othervm -Xcomp
30 * -XX:CompileCommand=compileony,compiler.codegen.Test8005033::testBitCount
31 * compiler.codegen.Test8005033
32 * @author Richard Reingruber richard DOT reingruber AT sap DOT com
33 */
34
35 package compiler.codegen;
36
37 public class Test8005033 {
38 public static int MINUS_ONE = -1;
39
40 public static void main(String[] args) {
41 System.out.println("EXECUTING test.");
42 Integer.bitCount(1); // load class
43 int expectedBitCount = 0;
44 int calculatedBitCount = testBitCount();
45 if (expectedBitCount != calculatedBitCount) {
46 throw new InternalError("got " + calculatedBitCount + " but expected " + expectedBitCount);
47 }
48 System.out.println("SUCCESSFULLY passed test.");
49 }
50
51 // testBitCount will be compiled using the Integer.bitCount() intrinsic if possible
52 private static int testBitCount() {
53 return Integer.bitCount(MINUS_ONE+1); // -1 + 1 => int overflow
54 }
55 }
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