Mercurial > hg > truffle
comparison test/compiler/6946040/TestCharShortByteSwap.java @ 1396:d7f654633cfe
6946040: add intrinsic for short and char reverseBytes
Reviewed-by: never, twisti
Contributed-by: Hiroshi Yamauchi <yamauchi@google.com>
author | never |
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date | Mon, 26 Apr 2010 11:27:21 -0700 |
parents | |
children | c18cbe5936b8 |
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1385:bc32f286fae0 | 1396:d7f654633cfe |
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1 /* | |
2 * Copyright 2010 Google, 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 /* | |
26 * @test | |
27 * @bug 6946040 | |
28 * @summary Tests Character/Short.reverseBytes and their intrinsics implementation in the server compiler | |
29 * @run main/othervm -Xbatch -server -XX:CompileOnly=.testChar,.testShort TestCharShortByteSwap | |
30 */ | |
31 | |
32 // This test must run without any command line arguments. | |
33 | |
34 public class TestCharShortByteSwap { | |
35 | |
36 private static short initShort(String[] args, short v) { | |
37 if (args.length > 0) { | |
38 try { | |
39 return (short) Integer.valueOf(args[0]).intValue(); | |
40 } catch (NumberFormatException e) { } | |
41 } | |
42 return v; | |
43 } | |
44 | |
45 private static char initChar(String[] args, char v) { | |
46 if (args.length > 0) { | |
47 try { | |
48 return (char) Integer.valueOf(args[0]).intValue(); | |
49 } catch (NumberFormatException e) { } | |
50 } | |
51 return v; | |
52 } | |
53 | |
54 private static void testChar(char a, char b) { | |
55 if (a != Character.reverseBytes(b)) { | |
56 throw new RuntimeException("FAIL: " + (int)a + " != Character.reverseBytes(" + (int)b + ")"); | |
57 } | |
58 if (b != Character.reverseBytes(a)) { | |
59 throw new RuntimeException("FAIL: " + (int)b + " != Character.reverseBytes(" + (int)a + ")"); | |
60 } | |
61 } | |
62 | |
63 private static void testShort(short a, short b) { | |
64 if (a != Short.reverseBytes(b)) { | |
65 throw new RuntimeException("FAIL: " + (int)a + " != Short.reverseBytes(" + (int)b + ")"); | |
66 } | |
67 if (b != Short.reverseBytes(a)) { | |
68 throw new RuntimeException("FAIL: " + (int)b + " != Short.reverseBytes(" + (int)a + ")"); | |
69 } | |
70 } | |
71 | |
72 public static void main(String[] args) { | |
73 for (int i = 0; i < 100000; ++i) { // Trigger compilation | |
74 char c1 = initChar(args, (char) 0x0123); | |
75 char c2 = initChar(args, (char) 0x2301); | |
76 char c3 = initChar(args, (char) 0xaabb); | |
77 char c4 = initChar(args, (char) 0xbbaa); | |
78 short s1 = initShort(args, (short) 0x0123); | |
79 short s2 = initShort(args, (short) 0x2301); | |
80 short s3 = initShort(args, (short) 0xaabb); | |
81 short s4 = initShort(args, (short) 0xbbaa); | |
82 testChar(c1, c2); | |
83 testChar(c3, c4); | |
84 testShort(s1, s2); | |
85 testShort(s3, s4); | |
86 } | |
87 } | |
88 } |