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 6855215
28 * @summary Calculation error (NaN) after about 1500 calculations
29 *
30 * @run main/othervm -Xbatch -XX:UseSSE=0 Test6855215
31 */
32
33 public class Test6855215 {
34 private double m;
35 private double b;
36
37 public static double log10(double x) {
38 return Math.log(x) / Math.log(10);
39 }
40
41 void calcMapping(double xmin, double xmax, double ymin, double ymax) {
42 m = (ymax - ymin) / (log10(xmax) - log10(xmin));
43 b = (log10(xmin) * ymax - log10(xmax) * ymin);
44 }
45
46 public static void main(String[] args) {
47 Test6855215 c = new Test6855215();
48 for (int i = 0; i < 30000; i++) {
49 c.calcMapping(91, 121, 177, 34);
50 if (c.m != c.m) {
51 throw new InternalError();
52 }
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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 6855215
28 * @summary Calculation error (NaN) after about 1500 calculations
29 *
30 * @run main/othervm -Xbatch -XX:UseSSE=0 compiler.c1.Test6855215
31 */
32
33 package compiler.c1;
34
35 public class Test6855215 {
36 private double m;
37 private double b;
38
39 public static double log10(double x) {
40 return Math.log(x) / Math.log(10);
41 }
42
43 void calcMapping(double xmin, double xmax, double ymin, double ymax) {
44 m = (ymax - ymin) / (log10(xmax) - log10(xmin));
45 b = (log10(xmin) * ymax - log10(xmax) * ymin);
46 }
47
48 public static void main(String[] args) {
49 Test6855215 c = new Test6855215();
50 for (int i = 0; i < 30000; i++) {
51 c.calcMapping(91, 121, 177, 34);
52 if (c.m != c.m) {
53 throw new InternalError();
54 }
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