annotate test/compiler/intrinsics/mathexact/LoadTest.java @ 12323:c9ccd7b85f20

8024924: Intrinsify java.lang.Math.addExact Reviewed-by: kvn, twisti
author rbackman
date Fri, 27 Sep 2013 08:39:19 +0200
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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
c9ccd7b85f20 8024924: Intrinsify java.lang.Math.addExact
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6 * under the terms of the GNU General Public License version 2 only, as
c9ccd7b85f20 8024924: Intrinsify java.lang.Math.addExact
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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
c9ccd7b85f20 8024924: Intrinsify java.lang.Math.addExact
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
c9ccd7b85f20 8024924: Intrinsify java.lang.Math.addExact
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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
c9ccd7b85f20 8024924: Intrinsify java.lang.Math.addExact
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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 8024924
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27 * @summary Test non constant addExact
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28 * @compile LoadTest.java Verify.java
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29 * @run main LoadTest
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30 *
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31 */
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32
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33 import java.lang.ArithmeticException;
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34
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35 public class LoadTest {
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36 public static java.util.Random rnd = new java.util.Random();
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37 public static int[] values = new int[256];
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38
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39 public static void main(String[] args) {
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40 for (int i = 0; i < values.length; ++i) {
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41 values[i] = rnd.nextInt();
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42 }
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43
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44 for (int i = 0; i < 50000; ++i) {
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45 Verify.verify(values[i & 255], values[i & 255] - i);
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46 Verify.verify(values[i & 255] + i, values[i & 255] - i);
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47 Verify.verify(values[i & 255], values[i & 255]);
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48 if ((i & 1) == 1 && i > 5) {
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49 Verify.verify(values[i & 255] + i, values[i & 255] - i);
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50 } else {
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51 Verify.verify(values[i & 255] - i, values[i & 255] + i);
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52 }
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53 }
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54 }
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55 }