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comparison test/compiler/inlining/DefaultAndConcreteMethodsCHA.java @ 17504:709018897c81

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8031695: CHA ignores default methods during analysis leading to incorrect code generation Reviewed-by: jrose, acorn, hseigel, lfoltan
author vlivanov
date Thu, 23 Jan 2014 01:23:23 +0400
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17503:c2106608358b 17504:709018897c81
1 /*
2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
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 8031695
27 * @summary CHA ignores default methods during analysis leading to incorrect code generation
28 *
29 * @run main/othervm -Xbatch DefaultAndConcreteMethodsCHA
30 */
31 interface I {
32 default int m() { return 0; }
33 }
34
35 class A implements I {}
36
37 class C extends A { }
38 class D extends A { public int m() { return 1; } }
39
40 public class DefaultAndConcreteMethodsCHA {
41 public static int test(A obj) {
42 return obj.m();
43 }
44 public static void main(String[] args) {
45 for (int i = 0; i < 10000; i++) {
46 int idC = test(new C());
47 if (idC != 0) {
48 throw new Error("C.m didn't invoke I.m: id "+idC);
49 }
50
51 int idD = test(new D());
52 if (idD != 1) {
53 throw new Error("D.m didn't invoke D.m: id "+idD);
54 }
55 }
56
57 }
58 }