Mercurial > hg > truffle
comparison test/compiler/8007722/Test8007722.java @ 8117:706c919d3b56
8007722: C2: "assert(tp->base() != Type::AnyPtr) failed: not a bare pointer" at machnode.cpp:376
Summary: GetAndSetP's MachNode should capture bottom type.
Reviewed-by: kvn
author | roland |
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date | Tue, 26 Feb 2013 12:18:30 +0100 |
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8116:6931f425c517 | 8117:706c919d3b56 |
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1 /* | |
2 * Copyright (c) 2013, 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 8007722 | |
27 * @summary GetAndSetP's MachNode should capture bottom type | |
28 * @run main/othervm -XX:-UseOnStackReplacement -XX:-BackgroundCompilation Test8007722 | |
29 * | |
30 */ | |
31 | |
32 import java.util.concurrent.atomic.*; | |
33 | |
34 public class Test8007722 { | |
35 | |
36 int i; | |
37 static AtomicReference<Test8007722> ref; | |
38 | |
39 static int test(Test8007722 new_obj) { | |
40 Test8007722 o = ref.getAndSet(new_obj); | |
41 int ret = o.i; | |
42 o.i = 5; | |
43 return ret; | |
44 } | |
45 | |
46 static public void main(String[] args) { | |
47 Test8007722 obj = new Test8007722(); | |
48 ref = new AtomicReference<Test8007722>(obj); | |
49 | |
50 for (int i = 0; i < 20000; i++) { | |
51 test(obj); | |
52 } | |
53 | |
54 System.out.println("PASSED"); | |
55 } | |
56 } |