Mercurial > hg > truffle
annotate test/compiler/6946040/TestCharShortByteSwap.java @ 20218:828056cf311f
8040792: G1: Memory usage calculation uses sizeof(this) instead of sizeof(classname)
Summary: A few locations in the code use sizeof(this) which returns the size of the pointer instead of sizeof(classname) which returns the size of the sum of its members. This change fixes these errors and adds a few tests.
Reviewed-by: mgerdin, brutisso
author | tschatzl |
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date | Mon, 21 Jul 2014 09:40:19 +0200 |
parents | 7369298bec7e |
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rev | line source |
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1396 | 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
1396 | 22 * |
23 */ | |
24 | |
25 /* | |
26 * @test | |
27 * @bug 6946040 | |
28 * @summary Tests Character/Short.reverseBytes and their intrinsics implementation in the server compiler | |
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7115383: TEST_BUG: some jtreg tests fail because they explicitly specify -server option
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29 * @run main/othervm -Xbatch -XX:CompileOnly=.testChar,.testShort TestCharShortByteSwap |
1396 | 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 } |