Mercurial > hg > truffle
annotate test/compiler/7199742/Test7199742.java @ 14727:8b772174c514
Backport of 8504393de66b from jdk9
author | Doug Simon <doug.simon@oracle.com> |
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date | Mon, 24 Mar 2014 23:50:18 +0100 |
parents | f13867c41f73 |
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rev | line source |
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1 /* |
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2 * Copyright (c) 2012, Oracle and/or its affiliates. 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 /** |
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26 * @test |
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27 * @bug 7199742 |
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28 * @summary A lot of C2 OSR compilations of the same method's bci |
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29 * |
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30 * @run main/othervm -Xmx32m -Xbatch Test7199742 |
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31 */ |
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32 |
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33 public class Test7199742 { |
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34 private static final int ITERS = 10000000; |
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35 public static void main(String args[]) { |
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36 Test7199742 t = new Test7199742(); |
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37 for (int i=0; i<10; i++) { |
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38 test(t, 7); |
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39 } |
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40 } |
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41 static Test7199742 test(Test7199742 t, int m) { |
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42 int i = -(ITERS/2); |
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43 if (i == 0) return null; |
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44 Test7199742 v = null; |
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45 while(i < ITERS) { |
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46 if ((i&m) == 0) { |
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47 v = t; |
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48 } |
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49 i++; |
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50 } |
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51 return v; |
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52 } |
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53 } |
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54 |