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 6921969
28 * @summary Tests shorter long multiply sequences when the high 32 bits of long operands are known to be zero on x86_32
29 * @run main/othervm -Xbatch -XX:-Inline -XX:CompileOnly=.testNormal,.testLeftOptimized,.testRightOptimized,.testOptimized,.testLeftOptimized_LoadUI2L,.testRightOptimized_LoadUI2L,.testOptimized_LoadUI2L TestMultiplyLongHiZero
30 */
31
32 // This test must run without any command line arguments.
33
34 public class TestMultiplyLongHiZero {
35
36 private static void check(long leftFactor, long rightFactor, long optimizedProduct, long constantProduct) {
37 long normalProduct = leftFactor * rightFactor; // unaffected by the new optimization
38 if (optimizedProduct != constantProduct || normalProduct != constantProduct) {
39 throw new RuntimeException("Not all three products are equal: " +
40 Long.toHexString(normalProduct) + ", " +
41 Long.toHexString(optimizedProduct) + ", " +
42 Long.toHexString(constantProduct));
43 }
44 }
45
46 private static int initInt(String[] args, int v) {
47 if (args.length > 0) {
48 try {
49 return Integer.valueOf(args[0]);
50 } catch (NumberFormatException e) { }
51 }
52 return v;
53 }
|
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 6921969
28 * @summary Tests shorter long multiply sequences when the high 32 bits of long operands are known to be zero on x86_32
29 * @run main/othervm -Xbatch -XX:-Inline
30 * -XX:CompileCommand=compileonly,compiler.c2.TestMultiplyLongHiZero::testNormal
31 * -XX:CompileCommand=compileonly,compiler.c2.TestMultiplyLongHiZero::testLeftOptimized
32 * -XX:CompileCommand=compileonly,compiler.c2.TestMultiplyLongHiZero::testRightOptimized
33 * -XX:CompileCommand=compileonly,compiler.c2.TestMultiplyLongHiZero::testOptimized
34 * -XX:CompileCommand=compileonly,compiler.c2.TestMultiplyLongHiZero::testLeftOptimized_LoadUI2L
35 * -XX:CompileCommand=compileonly,compiler.c2.TestMultiplyLongHiZero::testRightOptimized_LoadUI2L
36 * -XX:CompileCommand=compileonly,compiler.c2.TestMultiplyLongHiZero::testOptimized_LoadUI2L
37 * compiler.c2.TestMultiplyLongHiZero
38 */
39
40 package compiler.c2;
41
42 // This test must run without any command line arguments.
43 public class TestMultiplyLongHiZero {
44
45 private static void check(long leftFactor, long rightFactor, long optimizedProduct, long constantProduct) {
46 long normalProduct = leftFactor * rightFactor; // unaffected by the new optimization
47 if (optimizedProduct != constantProduct || normalProduct != constantProduct) {
48 throw new RuntimeException("Not all three products are equal: " +
49 Long.toHexString(normalProduct) + ", " +
50 Long.toHexString(optimizedProduct) + ", " +
51 Long.toHexString(constantProduct));
52 }
53 }
54
55 private static int initInt(String[] args, int v) {
56 if (args.length > 0) {
57 try {
58 return Integer.valueOf(args[0]);
59 } catch (NumberFormatException e) { }
60 }
61 return v;
62 }
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