Mercurial > hg > truffle
annotate test/compiler/6837094/Test.java @ 12986:1b422ef5288a
8025728: Missing volatile specifier for field G1AllocRegion::_alloc_region
Summary: The field G1AllocRegion::_alloc_region needs to be declared volatile as it is used with that intention. Otherwise the compiler may generate the code that reloads the value which might have changed in the meantime, leading to spurious crashes.
Reviewed-by: iveresov, simonis, tschatzl
Contributed-by: Axel Siebenborn <axel.siebenborn@sap.com>
author | tschatzl |
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date | Wed, 23 Oct 2013 10:23:06 +0200 |
parents | c18cbe5936b8 |
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rev | line source |
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820 | 1 /* |
852
84770322b304
6861513: correct copyright attribution in test for 6837094 and 6860469
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2 * Copyright 2009 Google Inc. All Rights Reserved. |
820 | 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 * | |
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c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
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20 * or visit www.oracle.com if you need additional information or have any |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
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21 * questions. |
820 | 22 * |
23 */ | |
24 | |
25 /** | |
26 * @test | |
27 * @bug 6837094 | |
28 * @summary False positive for "meet not symmetric" failure | |
29 * | |
30 * @run main/othervm -Xbatch -XX:CompileOnly=Test.collectIs,Test$Factory$1.getArray,Test$Factory$2.getArray Test | |
31 */ | |
32 | |
33 import java.util.Set; | |
34 import java.util.HashSet; | |
35 | |
36 public class Test { | |
37 | |
38 private interface Factory<M extends Interface> { | |
39 Factory<Child0> Zero = new Factory<Child0>() { | |
40 public Child0[] getArray() { return new Child0[1]; } | |
41 }; | |
42 | |
43 Factory<Child1> One = new Factory<Child1>() { | |
44 public Child1[] getArray() { return new Child1[1]; } | |
45 }; | |
46 | |
47 M[] getArray(); | |
48 } | |
49 | |
50 /** | |
51 * C2 asserts when compiling this method. Bimorphic inlining happens at | |
52 * getArray call site. A Phi in the catch block tries to join the meet type | |
53 * from he inline site (Parent[]) with the type expected by CI (Interface[]). | |
54 * | |
55 * C2 throws an assert when it doesn't need to. | |
56 */ | |
57 private static <I extends Interface> void collectIs( | |
58 Factory<I> factory, Set<Interface> s) { | |
59 for (I i : factory.getArray()) { | |
60 try { | |
61 s.add(i); | |
62 } catch (Exception e) { | |
63 } | |
64 } | |
65 } | |
66 | |
67 static public void main(String argv[]) { | |
68 Set<Interface> s = new HashSet(); | |
69 | |
70 for (int i = 0; i < 25000; i++) { | |
71 collectIs(Factory.Zero, s); | |
72 collectIs(Factory.One, s); | |
73 } | |
74 } | |
75 } | |
76 | |
77 /** | |
78 * Establish necessary class hierarchy | |
79 */ | |
80 | |
81 interface Interface { | |
82 } | |
83 | |
84 class Parent { | |
85 } | |
86 | |
87 class Child0 extends Parent implements Interface { | |
88 } | |
89 | |
90 class Child1 extends Parent implements Interface { | |
91 } | |
92 | |
93 class Child2 extends Parent implements Interface { | |
94 } |