3177
|
1 |
/*
|
|
2 |
* Copyright 2009 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
|
|
20 |
* CA 95054 USA or visit www.sun.com if you need additional information or
|
|
21 |
* have any questions.
|
|
22 |
*/
|
|
23 |
|
|
24 |
/**
|
|
25 |
* @test
|
|
26 |
* @bug 5057225
|
|
27 |
* @summary Remove useless I2L conversions
|
|
28 |
*
|
|
29 |
* @run main/othervm -Xcomp -XX:CompileOnly=Test5057225.doload Test5057225
|
|
30 |
*/
|
|
31 |
|
|
32 |
import java.net.URLClassLoader;
|
|
33 |
|
|
34 |
public class Test5057225 {
|
|
35 |
static byte[] ba = new byte[] { -1 };
|
|
36 |
static short[] sa = new short[] { -1 };
|
|
37 |
static int[] ia = new int[] { -1 };
|
|
38 |
|
|
39 |
static final long[] BYTE_MASKS = {
|
|
40 |
0x0FL,
|
|
41 |
0x7FL, // 7-bit
|
|
42 |
0xFFL,
|
|
43 |
};
|
|
44 |
|
|
45 |
static final long[] SHORT_MASKS = {
|
|
46 |
0x000FL,
|
|
47 |
0x007FL, // 7-bit
|
|
48 |
0x00FFL,
|
|
49 |
0x0FFFL,
|
|
50 |
0x3FFFL, // 14-bit
|
|
51 |
0x7FFFL, // 15-bit
|
|
52 |
0xFFFFL,
|
|
53 |
};
|
|
54 |
|
|
55 |
static final long[] INT_MASKS = {
|
|
56 |
0x0000000FL,
|
|
57 |
0x0000007FL, // 7-bit
|
|
58 |
0x000000FFL,
|
|
59 |
0x00000FFFL,
|
|
60 |
0x00003FFFL, // 14-bit
|
|
61 |
0x00007FFFL, // 15-bit
|
|
62 |
0x0000FFFFL,
|
|
63 |
0x00FFFFFFL,
|
|
64 |
0x7FFFFFFFL, // 31-bit
|
|
65 |
0xFFFFFFFFL,
|
|
66 |
};
|
|
67 |
|
|
68 |
public static void main(String[] args) throws Exception {
|
|
69 |
for (int i = 0; i < BYTE_MASKS.length; i++) {
|
|
70 |
System.setProperty("value", "" + BYTE_MASKS[i]);
|
|
71 |
loadAndRunClass("Test5057225$loadUB2L");
|
|
72 |
}
|
|
73 |
|
|
74 |
for (int i = 0; i < SHORT_MASKS.length; i++) {
|
|
75 |
System.setProperty("value", "" + SHORT_MASKS[i]);
|
|
76 |
loadAndRunClass("Test5057225$loadUS2L");
|
|
77 |
}
|
|
78 |
|
|
79 |
for (int i = 0; i < INT_MASKS.length; i++) {
|
|
80 |
System.setProperty("value", "" + INT_MASKS[i]);
|
|
81 |
loadAndRunClass("Test5057225$loadUI2L");
|
|
82 |
}
|
|
83 |
}
|
|
84 |
|
|
85 |
static void check(long result, long expected) {
|
|
86 |
if (result != expected)
|
|
87 |
throw new InternalError(result + " != " + expected);
|
|
88 |
}
|
|
89 |
|
|
90 |
static void loadAndRunClass(String classname) throws Exception {
|
|
91 |
Class cl = Class.forName(classname);
|
|
92 |
URLClassLoader apploader = (URLClassLoader) cl.getClassLoader();
|
|
93 |
ClassLoader loader = new URLClassLoader(apploader.getURLs(), apploader.getParent());
|
|
94 |
Class c = loader.loadClass(classname);
|
|
95 |
Runnable r = (Runnable) c.newInstance();
|
|
96 |
r.run();
|
|
97 |
}
|
|
98 |
|
|
99 |
public static class loadUB2L implements Runnable {
|
|
100 |
static final long MASK;
|
|
101 |
static {
|
|
102 |
long value = 0;
|
|
103 |
try {
|
|
104 |
value = Long.decode(System.getProperty("value"));
|
|
105 |
} catch (Throwable e) {}
|
|
106 |
MASK = value;
|
|
107 |
}
|
|
108 |
|
|
109 |
public void run() { check(doload(ba), MASK); }
|
|
110 |
static long doload(byte[] ba) { return ba[0] & MASK; }
|
|
111 |
}
|
|
112 |
|
|
113 |
public static class loadUS2L implements Runnable {
|
|
114 |
static final long MASK;
|
|
115 |
static {
|
|
116 |
long value = 0;
|
|
117 |
try {
|
|
118 |
value = Long.decode(System.getProperty("value"));
|
|
119 |
} catch (Throwable e) {}
|
|
120 |
MASK = value;
|
|
121 |
}
|
|
122 |
|
|
123 |
public void run() { check(doload(sa), MASK); }
|
|
124 |
static long doload(short[] sa) { return sa[0] & MASK; }
|
|
125 |
}
|
|
126 |
|
|
127 |
public static class loadUI2L implements Runnable {
|
|
128 |
static final long MASK;
|
|
129 |
static {
|
|
130 |
long value = 0;
|
|
131 |
try {
|
|
132 |
value = Long.decode(System.getProperty("value"));
|
|
133 |
} catch (Throwable e) {}
|
|
134 |
MASK = value;
|
|
135 |
}
|
|
136 |
|
|
137 |
public void run() { check(doload(ia), MASK); }
|
|
138 |
static long doload(int[] ia) { return ia[0] & MASK; }
|
|
139 |
}
|
|
140 |
}
|