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 6973329
27 * @summary C2 with Zero based COOP produces code with broken anti-dependency on x86
28 *
29 * @run main/othervm -Xbatch -Xcomp -XX:CompileOnly=Test Test
30 */
31
32 class A {
33 A next;
34 int n;
35
36 public int get_n() {
37 return n+1;
38 }
39 }
40 public class Test {
41
42 A a;
43
44 void test (A new_next) {
45 A prev_next = a.next;
46 a.next = new_next;
47 if (prev_next == null) {
48 a.n = a.get_n();
49 }
50 }
51
52 public static void main(String args[]) {
53 Test t = new Test();
54 t.a = new A();
55 t.a.n = 1;
56 t.test(new A());
57 if (t.a.n != 2) {
58 System.out.println("Wrong value: " + t.a.n + " expected: 2");
59 System.exit(97);
60 }
61 }
62 }
63
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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 6973329
27 * @summary C2 with Zero based COOP produces code with broken anti-dependency on x86
28 *
29 * @run main/othervm -Xbatch -Xcomp
30 * -XX:CompileCommand=compileonly,compiler.c2.Test6973329::*
31 * compiler.c2.Test6973329
32 */
33
34 package compiler.c2;
35
36 public class Test6973329 {
37 static class A {
38 A next;
39 int n;
40
41 public int get_n() {
42 return n + 1;
43 }
44 }
45
46 A a;
47
48 void test(A new_next) {
49 A prev_next = a.next;
50 a.next = new_next;
51 if (prev_next == null) {
52 a.n = a.get_n();
53 }
54 }
55
56 public static void main(String args[]) {
57 Test6973329 t = new Test6973329();
58 t.a = new A();
59 t.a.n = 1;
60 t.test(new A());
61 if (t.a.n != 2) {
62 System.out.println("Wrong value: " + t.a.n + " expected: 2");
63 System.exit(97);
64 }
65 }
66 }
67
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