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comparison test/compiler/5091921/Test6357214.java @ 3345:bad7ecd0b6ed

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5091921: Sign flip issues in loop optimizer Summary: Fix integer overflow problem in the code generated by loop optimizer. Reviewed-by: never
author kvn
date Wed, 04 May 2011 13:12:42 -0700
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3344:0139aac70fb5 3345:bad7ecd0b6ed
1 /*
2 * Copyright (c) 2011, Oracle and/or its affiliates. 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 */
24
25 /**
26 * @test
27 * @bug 6357214
28 * @summary Hotspot server compiler gets integer comparison wrong
29 *
30 * @run main/othervm/timeout=60 -DshowAll=ffo -DeventID=444 Test6357214
31 */
32
33 // The test hangs after few iterations before the fix. So it fails if timeout.
34 class MyResult {
35 public boolean next() {
36 return true;
37 }
38
39 public String getString(String in) {
40 if (in.equals("id"))
41 return "idFoo";
42 if (in.equals("contentKey"))
43 return "ckFoo";
44 return "Foo";
45 }
46
47 public int getInt(String in) {
48 if (in.equals("processingComplete"))
49 return 0;
50 return 1;
51 }
52
53 public byte[] getBytes(String in) {
54 byte[] arr = null;
55 if (in.equals("content")) {
56 arr = new byte[65536];
57 byte j = 32;
58 for (int i=0; i<65536; i++) {
59 arr[i] = j;
60 if (++j == 127)
61 j=32;
62 }
63 }
64 return arr;
65 }
66 }
67
68 public class Test6357214 {
69 public static volatile boolean bollocks = true;
70 public String create(String context) throws Exception {
71
72 //
73 // Extract HTTP parameters
74 //
75
76 boolean showAll = System.getProperty("showAll") != null;
77 String eventID = System.getProperty("eventID");
78 String eventContentKey = System.getProperty("cKey");
79 //
80 // Build ContentStaging query based on eventID or eventContentKey
81 //
82
83 String sql = "select id, processingComplete, contentKey, content "
84 + "from ContentStaging cs, ContentStagingKey csk "
85 + "where cs.eventContentKey = csk.eventContentKey ";
86
87 if (eventID != null) {
88 sql += "and id = " + eventID;
89 }
90 else if (eventContentKey != null) {
91 sql += "and cs.eventContentKey = '"
92 + eventContentKey
93 + "' having id = max(id)";
94 }
95 else {
96 throw new Exception("Need eventID or eventContentKey");
97 }
98
99 //
100 // This factory builds a static panel, there is no JSP
101 //
102
103 StringBuffer html = new StringBuffer();
104
105 try {
106
107 MyResult result = new MyResult();
108 if (result.next()) {
109
110 eventID = result.getString("id");
111 int processingComplete = result.getInt("processingComplete");
112 String contentKey = result.getString("contentKey");
113 byte[] bytes = result.getBytes("content");
114
115 //
116 // Print content status and associated controls
117 //
118
119 html.append("<br/><font class=\"small\">");
120 html.append("Status: ");
121 switch (processingComplete) {
122 case 0 :
123 case 1 : html.append("PENDING"); break;
124 case 2 : html.append(contentKey); break;
125 case 3 : html.append(eventID); break;
126 default : html.append("UNKNONW");
127 }
128 html.append("</font><br/>");
129
130 //
131 // Print at most 20Kb of content unless "showAll" is set
132 //
133
134 int limit = showAll ? Integer.MAX_VALUE : 1024 * 20;
135 System.out.println(limit);
136 html.append("<pre>");
137 for (int i = 0; bytes != null && i < bytes.length; i++) {
138 char c = (char) bytes[i];
139 switch (c) {
140 case '<' : html.append("&lt;"); break;
141 case '>' : html.append("&gt;"); break;
142 case '&' : html.append("&amp;"); break;
143 default : html.append(c);
144 }
145
146 if (i > limit) {
147 while (bollocks);
148 // System.out.println("i is " + i);
149 // System.out.println("limit is " + limit);
150 html.append("...\n</pre>");
151 html.append(eventID);
152 html.append("<pre>");
153 break;
154 }
155 }
156 html.append("</pre>");
157 }
158 }
159 catch (Exception exception) {
160 throw exception;
161 }
162 finally {
163 html.append("Oof!!");
164 }
165 String ret = html.toString();
166 System.out.println("Returning string length = "+ ret.length());
167 return ret;
168 }
169
170 public static void main(String[] args) throws Exception {
171 int length=0;
172
173 for (int i = 0; i < 100; i++) {
174 length = new Test6357214().create("boo").length();
175 System.out.println(length);
176 }
177 }
178 }
179