Mercurial > hg > truffle
annotate test/compiler/intrinsics/mathexact/GVNTest.java @ 13563:fb846424299f
Truffle/Ruby: extend Instrumentation framework with language-agnostic interfaces for access to AST printing utilities and a Ruby implementation
author | Michael Van De Vanter <michael.van.de.vanter@oracle.com> |
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date | Tue, 07 Jan 2014 18:09:42 -0800 |
parents | 9949533a8623 |
children | cd5d10655495 |
rev | line source |
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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 8028207 |
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27 * @summary Verify that GVN doesn't mess up the two addExacts |
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28 * @compile GVNTest.java |
13421 | 29 * @run main GVNTest -XX:+IgnoreUnrecognizedVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseMathExactIntrinsics |
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30 * |
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31 */ |
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32 |
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33 public class GVNTest { |
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34 public static int result = 0; |
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35 public static int value = 93; |
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36 public static void main(String[] args) { |
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37 for (int i = 0; i < 50000; ++i) { |
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38 result = runTest(value + i); |
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39 result = runTest(value + i); |
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40 result = runTest(value + i); |
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41 result = runTest(value + i); |
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42 result = runTest(value + i); |
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43 } |
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44 } |
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45 |
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46 public static int runTest(int value) { |
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47 int v = value + value; |
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48 int sum = 0; |
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49 if (v < 4032) { |
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50 for (int i = 0; i < 1023; ++i) { |
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51 sum += Math.addExact(value, value); |
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52 } |
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53 } else { |
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54 for (int i = 0; i < 321; ++i) { |
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55 sum += Math.addExact(value, value); |
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56 } |
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57 } |
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58 return sum + v; |
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59 } |
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60 } |