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test/compiler/6946040/TestCharShortByteSwap.java@dbb05f6d93c4
test/compiler/6946040/TestCharShortByteSwap.java
Mon, 28 Jul 2014 15:06:38 -0700
- author
- fzhinkin
- date
- Mon, 28 Jul 2014 15:06:38 -0700
- changeset 6997
- dbb05f6d93c4
- parent 4684
- 7369298bec7e
- child 6876
- 710a3c8b516e
- permissions
- -rw-r--r--
8051344: JVM crashed in Compile::start() during method parsing w/ UseRTMDeopt turned on
Summary: call rtm_deopt() only if there were no compilation bailouts before.
Reviewed-by: kvn
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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
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 -XX:CompileOnly=.testChar,.testShort TestCharShortByteSwap
30 */
32 // This test must run without any command line arguments.
34 public class TestCharShortByteSwap {
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 }
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 }
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 }
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 }
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 }
