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annotate test/compiler/7179138/Test7179138_2.java @ 14094:3f27e57439ed

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Truffle/Instrumentation: significant rearrangement (including moved class) and extension of the Truffle Instrumentation Framework. New interfaces include DebugContext (which can be attached to the ExecutionContext), through which access is provided to possibly language-specific (a) node instrumentation, (b) debug services manager, (c) notification when programs halt, (d) display of language values, and (e) display of variable identifiers.
author Michael Van De Vanter <michael.van.de.vanter@oracle.com>
date Mon, 03 Feb 2014 20:58:23 -0800
parents 751bd303aa45
children
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1 /*
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2 * Copyright 2012 Skip Balk. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23
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24 /*
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25 * @test
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26 * @bug 7179138
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27 * @summary Incorrect result with String concatenation optimization
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28 * @run main/othervm -Xbatch -XX:+IgnoreUnrecognizedVMOptions -XX:-TieredCompilation Test7179138_2
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29 *
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30 * @author Skip Balk
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31 */
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32
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33 public class Test7179138_2 {
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34 public static void main(String[] args) throws Exception {
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35 System.out.println("Java Version: " + System.getProperty("java.vm.version"));
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36 long[] durations = new long[60];
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37 for (int i = 0; i < 100000; i++) {
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38 // this empty for-loop is required to reproduce this bug
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39 for (long duration : durations) {
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40 // do nothing
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41 }
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42 {
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43 String s = "test";
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44 int len = s.length();
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45
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46 s = s + s;
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47 len = len + len;
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48
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49 s = s + s;
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50 len = len + len;
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51
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52 s = s + s;
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53 len = len + len;
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54
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55 if (s.length() != len) {
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56 System.out.println("Failed at iteration: " + i);
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57 System.out.println("Length mismatch: " + s.length() + " <> " + len);
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58 System.out.println("Expected: \"" + "test" + "test" + "test" + "test" + "test" + "test" + "test" + "test" + "\"");
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59 System.out.println("Actual: \"" + s + "\"");
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60 System.exit(0);
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61 }
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62 }
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63 }
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64 }
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65 }
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