Mercurial > hg > truffle
annotate test/compiler/8011706/Test8011706.java @ 19752:15bb034480d7
Add unit test for conditional elimination of IntegerTestNode.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Tue, 10 Mar 2015 15:28:02 +0100 |
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1 /* |
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2 * Copyright (c) 2013, 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 * @test |
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26 * @bug 8011706 |
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27 * @summary loop invariant code motion may move load before store to the same field |
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28 * @run main/othervm -XX:-UseOnStackReplacement -XX:-BackgroundCompilation Test8011706 |
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29 * |
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30 */ |
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31 |
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32 public class Test8011706 { |
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33 int[] array; |
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34 |
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35 void m(boolean test, int[] array1, int[] array2) { |
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36 int i = 0; |
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37 if (test) { |
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38 array = array1; |
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39 } else { |
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40 array = array2; |
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41 } |
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42 |
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43 while(true) { |
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44 int v = array[i]; |
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45 i++; |
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46 if (i >= 10) return; |
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47 } |
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48 } |
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49 |
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50 static public void main(String[] args) { |
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51 int[] new_array = new int[10]; |
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52 Test8011706 ti = new Test8011706(); |
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53 boolean failed = false; |
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54 try { |
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55 for (int i = 0; i < 10000; i++) { |
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56 ti.array = null; |
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57 ti.m(true, new_array, new_array); |
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58 } |
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59 } catch(NullPointerException ex) { |
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60 throw new RuntimeException("TEST FAILED", ex); |
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61 } |
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62 System.out.println("TEST PASSED"); |
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63 } |
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64 |
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65 } |