|
824
|
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 }
|
