Mercurial > hg > graal-compiler
comparison test/runtime/8003985/Test8003985.java @ 8716:96480359523a
8008965: @Contended fails with classes having static fields
Summary: Disable @Contended support for static fields
Reviewed-by: coleenp, kvn
Contributed-by: Aleksey Shipilev <aleksey.shipilev@oracle.com>
author | coleenp |
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date | Mon, 11 Mar 2013 14:00:09 -0400 |
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8714:35ef86296a5d | 8716:96480359523a |
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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 import java.io.BufferedReader; | |
25 import java.io.InputStreamReader; | |
26 import java.lang.Class; | |
27 import java.lang.String; | |
28 import java.lang.System; | |
29 import java.lang.management.ManagementFactory; | |
30 import java.lang.management.RuntimeMXBean; | |
31 import java.util.ArrayList; | |
32 import java.util.List; | |
33 import java.util.concurrent.CyclicBarrier; | |
34 import java.util.regex.Matcher; | |
35 import java.util.regex.Pattern; | |
36 import java.lang.reflect.Field; | |
37 import java.lang.reflect.Modifier; | |
38 import sun.misc.Unsafe; | |
39 import sun.misc.Contended; | |
40 | |
41 /* | |
42 * @test | |
43 * @bug 8003985 | |
44 * @summary Support Contended Annotation - JEP 142 | |
45 * | |
46 * @run main/othervm -XX:-RestrictContended Test8003985 | |
47 */ | |
48 public class Test8003985 { | |
49 | |
50 private static final Unsafe U; | |
51 private static int ADDRESS_SIZE; | |
52 private static int HEADER_SIZE; | |
53 | |
54 static { | |
55 // steal Unsafe | |
56 try { | |
57 Field unsafe = Unsafe.class.getDeclaredField("theUnsafe"); | |
58 unsafe.setAccessible(true); | |
59 U = (Unsafe) unsafe.get(null); | |
60 } catch (NoSuchFieldException | IllegalAccessException e) { | |
61 throw new IllegalStateException(e); | |
62 } | |
63 | |
64 // When running with CompressedOops on 64-bit platform, the address size | |
65 // reported by Unsafe is still 8, while the real reference fields are 4 bytes long. | |
66 // Try to guess the reference field size with this naive trick. | |
67 try { | |
68 long off1 = U.objectFieldOffset(CompressedOopsClass.class.getField("obj1")); | |
69 long off2 = U.objectFieldOffset(CompressedOopsClass.class.getField("obj2")); | |
70 ADDRESS_SIZE = (int) Math.abs(off2 - off1); | |
71 HEADER_SIZE = (int) Math.min(off1, off2); | |
72 } catch (NoSuchFieldException e) { | |
73 ADDRESS_SIZE = -1; | |
74 } | |
75 } | |
76 | |
77 static class CompressedOopsClass { | |
78 public Object obj1; | |
79 public Object obj2; | |
80 } | |
81 | |
82 public static boolean arePaddedPairwise(Class klass, String field1, String field2) throws Exception { | |
83 Field f1 = klass.getDeclaredField(field1); | |
84 Field f2 = klass.getDeclaredField(field2); | |
85 | |
86 if (isStatic(f1) != isStatic(f2)) { | |
87 return true; // these guys are in naturally disjoint locations | |
88 } | |
89 | |
90 int diff = offset(f1) - offset(f2); | |
91 if (diff < 0) { | |
92 // f1 is first | |
93 return (offset(f2) - (offset(f1) + getSize(f1))) > 64; | |
94 } else { | |
95 // f2 is first | |
96 return (offset(f1) - (offset(f2) + getSize(f2))) > 64; | |
97 } | |
98 } | |
99 | |
100 public static boolean isPadded(Class klass, String field1) throws Exception { | |
101 Field f1 = klass.getDeclaredField(field1); | |
102 | |
103 if (isStatic(f1)) { | |
104 return offset(f1) > 128 + 64; | |
105 } | |
106 | |
107 return offset(f1) > 64; | |
108 } | |
109 | |
110 public static boolean sameLayout(Class klass1, Class klass2) throws Exception { | |
111 for (Field f1 : klass1.getDeclaredFields()) { | |
112 Field f2 = klass2.getDeclaredField(f1.getName()); | |
113 if (offset(f1) != offset(f2)) { | |
114 return false; | |
115 } | |
116 } | |
117 | |
118 for (Field f2 : klass1.getDeclaredFields()) { | |
119 Field f1 = klass2.getDeclaredField(f2.getName()); | |
120 if (offset(f1) != offset(f2)) { | |
121 return false; | |
122 } | |
123 } | |
124 | |
125 return true; | |
126 } | |
127 | |
128 public static boolean isStatic(Field field) { | |
129 return Modifier.isStatic(field.getModifiers()); | |
130 } | |
131 | |
132 public static int offset(Field field) { | |
133 if (isStatic(field)) { | |
134 return (int) U.staticFieldOffset(field); | |
135 } else { | |
136 return (int) U.objectFieldOffset(field); | |
137 } | |
138 } | |
139 | |
140 public static int getSize(Field field) { | |
141 Class type = field.getType(); | |
142 if (type == byte.class) { return 1; } | |
143 if (type == boolean.class) { return 1; } | |
144 if (type == short.class) { return 2; } | |
145 if (type == char.class) { return 2; } | |
146 if (type == int.class) { return 4; } | |
147 if (type == float.class) { return 4; } | |
148 if (type == long.class) { return 8; } | |
149 if (type == double.class) { return 8; } | |
150 return ADDRESS_SIZE; | |
151 } | |
152 | |
153 public static void main(String[] args) throws Exception { | |
154 boolean endResult = true; | |
155 | |
156 // --------------- INSTANCE FIELDS --------------------- | |
157 | |
158 if (arePaddedPairwise(Test1.class, "int1", "int2") || | |
159 isPadded(Test1.class, "int1") || | |
160 isPadded(Test1.class, "int2")) { | |
161 System.err.println("Test1 failed"); | |
162 endResult &= false; | |
163 } | |
164 | |
165 if (!arePaddedPairwise(Test2.class, "int1", "int2") || | |
166 !isPadded(Test2.class, "int1") || | |
167 isPadded(Test2.class, "int2")) { | |
168 System.err.println("Test2 failed"); | |
169 endResult &= false; | |
170 } | |
171 | |
172 if (!arePaddedPairwise(Test3.class, "int1", "int2") || | |
173 !isPadded(Test3.class, "int1") || | |
174 !isPadded(Test3.class, "int2")) { | |
175 System.err.println("Test3 failed"); | |
176 endResult &= false; | |
177 } | |
178 | |
179 if (arePaddedPairwise(Test4.class, "int1", "int2") || | |
180 !isPadded(Test4.class, "int1") || | |
181 !isPadded(Test4.class, "int2")) { | |
182 System.err.println("Test4 failed"); | |
183 endResult &= false; | |
184 } | |
185 | |
186 if (!arePaddedPairwise(Test5.class, "int1", "int2") || | |
187 !isPadded(Test5.class, "int1") || | |
188 !isPadded(Test5.class, "int2")) { | |
189 System.err.println("Test5 failed"); | |
190 endResult &= false; | |
191 } | |
192 | |
193 if (!arePaddedPairwise(Test6.class, "int1", "int2") || | |
194 !isPadded(Test6.class, "int1") || | |
195 !isPadded(Test6.class, "int2")) { | |
196 System.err.println("Test6 failed"); | |
197 endResult &= false; | |
198 } | |
199 | |
200 if (arePaddedPairwise(Test7.class, "int1", "int2") || | |
201 !isPadded(Test7.class, "int1") || | |
202 !isPadded(Test7.class, "int2")) { | |
203 System.err.println("Test7 failed"); | |
204 endResult &= false; | |
205 } | |
206 | |
207 if (!arePaddedPairwise(Test8.class, "int1", "int2") || | |
208 !isPadded(Test8.class, "int1") || | |
209 !isPadded(Test8.class, "int2")) { | |
210 System.err.println("Test8 failed"); | |
211 endResult &= false; | |
212 } | |
213 | |
214 if (!arePaddedPairwise(Test9.class, "int1", "int2") || | |
215 !isPadded(Test9.class, "int1") || | |
216 !isPadded(Test9.class, "int2")) { | |
217 System.err.println("Test9 failed"); | |
218 endResult &= false; | |
219 } | |
220 | |
221 if (!sameLayout(Test4.class, Test7.class)) { | |
222 System.err.println("Test4 and Test7 have different layouts"); | |
223 endResult &= false; | |
224 } | |
225 | |
226 if (!sameLayout(Test5.class, Test6.class)) { | |
227 System.err.println("Test5 and Test6 have different layouts"); | |
228 endResult &= false; | |
229 } | |
230 | |
231 if (!sameLayout(Test8.class, Test9.class)) { | |
232 System.err.println("Test8 and Test9 have different layouts"); | |
233 endResult &= false; | |
234 } | |
235 | |
236 System.out.println(endResult ? "Test PASSES" : "Test FAILS"); | |
237 if (!endResult) { | |
238 throw new Error("Test failed"); | |
239 } | |
240 } | |
241 | |
242 // ----------------------------------- INSTANCE FIELDS ----------------------------------------- | |
243 | |
244 // naturally packed | |
245 public static class Test1 { | |
246 private int int1; | |
247 private int int2; | |
248 } | |
249 | |
250 // int1 is padded | |
251 public static class Test2 { | |
252 @Contended private int int1; | |
253 private int int2; | |
254 } | |
255 | |
256 // both fields are padded | |
257 public static class Test3 { | |
258 @Contended private int int1; | |
259 @Contended private int int2; | |
260 } | |
261 | |
262 // fields are padded in the singular group | |
263 public static class Test4 { | |
264 @Contended("sameGroup") private int int1; | |
265 @Contended("sameGroup") private int int2; | |
266 } | |
267 | |
268 // fields are padded in disjoint groups | |
269 public static class Test5 { | |
270 @Contended("diffGroup1") private int int1; | |
271 @Contended("diffGroup2") private int int2; | |
272 } | |
273 | |
274 // fields are padded in disjoint groups | |
275 public static class Test6 { | |
276 @Contended private int int1; | |
277 @Contended("diffGroup2") private int int2; | |
278 } | |
279 | |
280 // fields are padded in the singular group | |
281 @Contended | |
282 public static class Test7 { | |
283 private int int1; | |
284 private int int2; | |
285 } | |
286 | |
287 // all fields are padded as the group, and one field is padded specifically | |
288 @Contended | |
289 public static class Test8 { | |
290 @Contended private int int1; | |
291 private int int2; | |
292 } | |
293 | |
294 // all fields are padded as the group, and one field is padded specifically | |
295 @Contended | |
296 public static class Test9 { | |
297 @Contended("group") private int int1; | |
298 private int int2; | |
299 } | |
300 | |
301 } | |
302 |