author | erikj |
Tue, 12 Sep 2017 19:03:39 +0200 | |
changeset 47216 | 71c04702a3d5 |
parent 40880 | hotspot/test/compiler/unsafe/OpaqueAccesses.java@74222f8c095e |
child 51016 | a926b7737d3b |
permissions | -rw-r--r-- |
39718 | 1 |
/* |
2 |
* Copyright (c) 2016, 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. Oracle designates this |
|
8 |
* particular file as subject to the "Classpath" exception as provided |
|
9 |
* by Oracle in the LICENSE file that accompanied this code. |
|
10 |
* |
|
11 |
* This code is distributed in the hope that it will be useful, but WITHOUT |
|
12 |
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
|
13 |
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
|
14 |
* version 2 for more details (a copy is included in the LICENSE file that |
|
15 |
* accompanied this code). |
|
16 |
* |
|
17 |
* You should have received a copy of the GNU General Public License version |
|
18 |
* 2 along with this work; if not, write to the Free Software Foundation, |
|
19 |
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
|
20 |
* |
|
21 |
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
22 |
* or visit www.oracle.com if you need additional information or have any |
|
23 |
* questions. |
|
24 |
*/ |
|
25 |
||
26 |
/* |
|
27 |
* @test |
|
28 |
* @bug 8155781 |
|
29 |
* @modules java.base/jdk.internal.misc |
|
30 |
* |
|
31 |
* @run main/bootclasspath/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+UnlockDiagnosticVMOptions |
|
32 |
* -XX:-TieredCompilation -Xbatch |
|
40880
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
33 |
* -XX:+UseCompressedOops -XX:+UseCompressedClassPointers |
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
34 |
* -XX:CompileCommand=dontinline,compiler.unsafe.OpaqueAccesses::test* |
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
35 |
* compiler.unsafe.OpaqueAccesses |
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
36 |
* @run main/bootclasspath/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+UnlockDiagnosticVMOptions |
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
37 |
* -XX:-TieredCompilation -Xbatch |
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
38 |
* -XX:+UseCompressedOops -XX:-UseCompressedClassPointers |
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
39 |
* -XX:CompileCommand=dontinline,compiler.unsafe.OpaqueAccesses::test* |
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
40 |
* compiler.unsafe.OpaqueAccesses |
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
41 |
* @run main/bootclasspath/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+UnlockDiagnosticVMOptions |
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
42 |
* -XX:-TieredCompilation -Xbatch |
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
43 |
* -XX:-UseCompressedOops -XX:+UseCompressedClassPointers |
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
44 |
* -XX:CompileCommand=dontinline,compiler.unsafe.OpaqueAccesses::test* |
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
45 |
* compiler.unsafe.OpaqueAccesses |
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
46 |
* @run main/bootclasspath/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+UnlockDiagnosticVMOptions |
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
47 |
* -XX:-TieredCompilation -Xbatch |
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
48 |
* -XX:-UseCompressedOops -XX:-UseCompressedClassPointers |
39718 | 49 |
* -XX:CompileCommand=dontinline,compiler.unsafe.OpaqueAccesses::test* |
50 |
* compiler.unsafe.OpaqueAccesses |
|
51 |
*/ |
|
52 |
package compiler.unsafe; |
|
53 |
||
54 |
import jdk.internal.misc.Unsafe; |
|
55 |
||
56 |
import java.lang.reflect.Field; |
|
57 |
||
58 |
public class OpaqueAccesses { |
|
59 |
private static final Unsafe UNSAFE = Unsafe.getUnsafe(); |
|
60 |
||
61 |
private static final Object INSTANCE = new OpaqueAccesses(); |
|
62 |
||
63 |
private static final Object[] ARRAY = new Object[10]; |
|
64 |
||
65 |
private static final long F_OFFSET; |
|
66 |
private static final long E_OFFSET; |
|
67 |
||
68 |
static { |
|
69 |
try { |
|
70 |
Field field = OpaqueAccesses.class.getDeclaredField("f"); |
|
71 |
F_OFFSET = UNSAFE.objectFieldOffset(field); |
|
72 |
||
73 |
E_OFFSET = UNSAFE.arrayBaseOffset(ARRAY.getClass()); |
|
74 |
} catch (NoSuchFieldException e) { |
|
75 |
throw new Error(e); |
|
76 |
} |
|
77 |
} |
|
78 |
||
79 |
private Object f = new Object(); |
|
40880
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
80 |
private long l1, l2; |
39718 | 81 |
|
82 |
static Object testFixedOffsetField(Object o) { |
|
83 |
return UNSAFE.getObject(o, F_OFFSET); |
|
84 |
} |
|
85 |
||
86 |
static int testFixedOffsetHeader0(Object o) { |
|
87 |
return UNSAFE.getInt(o, 0); |
|
88 |
} |
|
89 |
||
90 |
static int testFixedOffsetHeader4(Object o) { |
|
91 |
return UNSAFE.getInt(o, 4); |
|
92 |
} |
|
93 |
||
40880
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
94 |
static int testFixedOffsetHeader8(Object o) { |
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
95 |
return UNSAFE.getInt(o, 8); |
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
96 |
} |
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
97 |
|
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
98 |
static int testFixedOffsetHeader12(Object o) { |
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
99 |
return UNSAFE.getInt(o, 12); |
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
100 |
} |
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
101 |
|
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
102 |
static int testFixedOffsetHeader16(Object o) { |
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
103 |
return UNSAFE.getInt(o, 16); |
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
104 |
} |
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
105 |
|
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
106 |
static int testFixedOffsetHeader17(Object o) { |
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
107 |
return UNSAFE.getIntUnaligned(o, 17); |
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
108 |
} |
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
109 |
|
39718 | 110 |
static Object testFixedBase(long off) { |
111 |
return UNSAFE.getObject(INSTANCE, off); |
|
112 |
} |
|
113 |
||
114 |
static Object testOpaque(Object o, long off) { |
|
115 |
return UNSAFE.getObject(o, off); |
|
116 |
} |
|
117 |
||
118 |
static int testFixedOffsetHeaderArray0(Object[] arr) { |
|
119 |
return UNSAFE.getInt(arr, 0); |
|
120 |
} |
|
121 |
||
122 |
static int testFixedOffsetHeaderArray4(Object[] arr) { |
|
123 |
return UNSAFE.getInt(arr, 4); |
|
124 |
} |
|
125 |
||
40880
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
126 |
static int testFixedOffsetHeaderArray8(Object[] arr) { |
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
127 |
return UNSAFE.getInt(arr, 8); |
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
128 |
} |
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
129 |
|
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
130 |
static int testFixedOffsetHeaderArray12(Object[] arr) { |
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
131 |
return UNSAFE.getInt(arr, 12); |
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
132 |
} |
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
133 |
|
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
134 |
static int testFixedOffsetHeaderArray16(Object[] arr) { |
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
135 |
return UNSAFE.getInt(arr, 16); |
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
136 |
} |
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
137 |
|
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
138 |
static int testFixedOffsetHeaderArray17(Object[] arr) { |
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
139 |
return UNSAFE.getIntUnaligned(arr, 17); |
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
140 |
} |
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
141 |
|
39718 | 142 |
static Object testFixedOffsetArray(Object[] arr) { |
143 |
return UNSAFE.getObject(arr, E_OFFSET); |
|
144 |
} |
|
145 |
||
146 |
static Object testFixedBaseArray(long off) { |
|
147 |
return UNSAFE.getObject(ARRAY, off); |
|
148 |
} |
|
149 |
||
150 |
static Object testOpaqueArray(Object[] o, long off) { |
|
151 |
return UNSAFE.getObject(o, off); |
|
152 |
} |
|
153 |
||
154 |
static final long ADDR = UNSAFE.allocateMemory(10); |
|
155 |
static boolean flag; |
|
156 |
||
157 |
static int testMixedAccess() { |
|
158 |
flag = !flag; |
|
159 |
Object o = (flag ? INSTANCE : null); |
|
160 |
long off = (flag ? F_OFFSET : ADDR); |
|
161 |
return UNSAFE.getInt(o, off); |
|
162 |
} |
|
163 |
||
164 |
public static void main(String[] args) { |
|
165 |
for (int i = 0; i < 20_000; i++) { |
|
166 |
// Instance |
|
167 |
testFixedOffsetField(INSTANCE); |
|
168 |
testFixedOffsetHeader0(INSTANCE); |
|
169 |
testFixedOffsetHeader4(INSTANCE); |
|
40880
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
170 |
testFixedOffsetHeader8(INSTANCE); |
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
171 |
testFixedOffsetHeader12(INSTANCE); |
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
172 |
testFixedOffsetHeader16(INSTANCE); |
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
173 |
testFixedOffsetHeader17(INSTANCE); |
39718 | 174 |
testFixedBase(F_OFFSET); |
175 |
testOpaque(INSTANCE, F_OFFSET); |
|
176 |
testMixedAccess(); |
|
177 |
||
178 |
// Array |
|
179 |
testFixedOffsetHeaderArray0(ARRAY); |
|
180 |
testFixedOffsetHeaderArray4(ARRAY); |
|
40880
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
181 |
testFixedOffsetHeaderArray8(ARRAY); |
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
182 |
testFixedOffsetHeaderArray12(ARRAY); |
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
183 |
testFixedOffsetHeaderArray16(ARRAY); |
74222f8c095e
8162101: C2: Handle "wide" aliases for unsafe accesses
vlivanov
parents:
39718
diff
changeset
|
184 |
testFixedOffsetHeaderArray17(ARRAY); |
39718 | 185 |
testFixedOffsetArray(ARRAY); |
186 |
testFixedBaseArray(E_OFFSET); |
|
187 |
testOpaqueArray(ARRAY, E_OFFSET); |
|
188 |
} |
|
189 |
System.out.println("TEST PASSED"); |
|
190 |
} |
|
191 |
} |