hotspot/test/compiler/5091921/Test6357214.java
author kvn
Wed, 04 May 2011 13:12:42 -0700
changeset 9446 748a37b25d10
permissions -rw-r--r--
5091921: Sign flip issues in loop optimizer Summary: Fix integer overflow problem in the code generated by loop optimizer. Reviewed-by: never
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/*
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 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 *
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 */
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/**
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 * @test
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 * @bug 6357214
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 * @summary Hotspot server compiler gets integer comparison wrong
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 *
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 * @run main/othervm/timeout=60 -DshowAll=ffo -DeventID=444 Test6357214
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 */
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// The test hangs after few iterations before the fix. So it fails if timeout.
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class MyResult {
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        public boolean next() {
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                return true;
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        }
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        public String getString(String in) {
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                if (in.equals("id"))
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                        return "idFoo";
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                if (in.equals("contentKey"))
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                        return "ckFoo";
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                return "Foo";
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        }
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        public int getInt(String in) {
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                if (in.equals("processingComplete"))
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                        return 0;
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                return 1;
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        }
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        public byte[] getBytes(String in) {
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                byte[] arr = null;
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                if (in.equals("content")) {
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                        arr = new byte[65536];
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                        byte j = 32;
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                        for (int i=0; i<65536; i++) {
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                                arr[i] = j;
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                                if (++j == 127)
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                                        j=32;
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                        }
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                }
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                return arr;
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        }
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}
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public class Test6357214 {
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        public static volatile boolean bollocks = true;
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    public String create(String context) throws Exception {
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        //
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        // Extract HTTP parameters
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        //
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        boolean showAll = System.getProperty("showAll") != null;
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          String eventID = System.getProperty("eventID");
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          String eventContentKey = System.getProperty("cKey");
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        //
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        // Build ContentStaging query based on eventID or eventContentKey
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        //
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        String sql = "select id, processingComplete, contentKey, content "
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                   + "from   ContentStaging cs, ContentStagingKey csk "
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                   + "where  cs.eventContentKey = csk.eventContentKey ";
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        if (eventID != null) {
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            sql += "and id = " + eventID;
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        }
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        else if (eventContentKey != null) {
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            sql += "and cs.eventContentKey = '"
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                +  eventContentKey
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                +  "' having id = max(id)";
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        }
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        else {
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            throw new Exception("Need eventID or eventContentKey");
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        }
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        //
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        // This factory builds a static panel, there is no JSP
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        //
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        StringBuffer html = new StringBuffer();
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        try {
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                MyResult result = new MyResult();
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            if (result.next()) {
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                eventID = result.getString("id");
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                int processingComplete = result.getInt("processingComplete");
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                String contentKey = result.getString("contentKey");
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                byte[] bytes = result.getBytes("content");
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                //
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                // Print content status and associated controls
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                //
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                html.append("<br/><font class=\"small\">");
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                html.append("Status: ");
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                switch (processingComplete) {
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                    case  0 :
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                    case  1 : html.append("PENDING"); break;
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                    case  2 : html.append(contentKey); break;
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                    case  3 : html.append(eventID); break;
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                    default : html.append("UNKNONW");
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                }
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                html.append("</font><br/>");
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                //
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                // Print at most 20Kb of content unless "showAll" is set
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                //
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                int limit = showAll ? Integer.MAX_VALUE : 1024 * 20;
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                System.out.println(limit);
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                html.append("<pre>");
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                for (int i = 0; bytes != null && i < bytes.length; i++) {
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                    char c = (char) bytes[i];
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                    switch (c) {
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                        case '<' : html.append("&lt;");  break;
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                        case '>' : html.append("&gt;");  break;
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                        case '&' : html.append("&amp;"); break;
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                        default  : html.append(c);
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                    }
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                    if (i > limit) {
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                        while (bollocks);
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                        // System.out.println("i is " + i);
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                        // System.out.println("limit is " + limit);
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                        html.append("...\n</pre>");
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                        html.append(eventID);
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                        html.append("<pre>");
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                        break;
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                    }
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                }
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                html.append("</pre>");
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            }
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        }
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        catch (Exception exception) {
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            throw exception;
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        }
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        finally {
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            html.append("Oof!!");
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        }
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        String ret = html.toString();
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        System.out.println("Returning string length = "+ ret.length());
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        return ret;
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    }
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    public static void main(String[] args) throws Exception {
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                int length=0;
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                for (int i = 0; i < 100; i++) {
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                        length = new Test6357214().create("boo").length();
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                        System.out.println(length);
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                }
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    }
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}
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