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annotate test/compiler/intrinsics/mathexact/RepeatTest.java @ 12888:4a2acfb16e97

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8025657: compiler/intrinsics/mathexact/ConstantTest.java fails on assert in lcm.cpp on solaris x64 Reviewed-by: kvn, twisti
author rbackman
date Fri, 11 Oct 2013 12:06:14 +0200
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12888
4a2acfb16e97 8025657: compiler/intrinsics/mathexact/ConstantTest.java fails on assert in lcm.cpp on solaris x64
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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 8025657
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27 * @summary Test repeating addExact
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28 * @compile RepeatTest.java
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29 * @run main RepeatTest
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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 RepeatTest {
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36 public static void main(String[] args) {
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37 java.util.Random rnd = new java.util.Random();
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38 for (int i = 0; i < 50000; ++i) {
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39 int x = Integer.MAX_VALUE - 10;
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40 int y = Integer.MAX_VALUE - 10 + rnd.nextInt(5); //rnd.nextInt() / 2;
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41
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42 int c = rnd.nextInt() / 2;
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43 int d = rnd.nextInt() / 2;
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44
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45 int a = addExact(x, y);
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46
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47 if (a != 36) {
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48 throw new RuntimeException("a != 0 : " + a);
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49 }
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50
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51 int b = nonExact(c, d);
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52 int n = addExact2(c, d);
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53
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54
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55 if (n != b) {
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56 throw new RuntimeException("n != b : " + n + " != " + b);
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57 }
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58 }
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59 }
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60
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61 public static int addExact2(int x, int y) {
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62 int result = 0;
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63 result += java.lang.Math.addExact(x, y);
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64 result += java.lang.Math.addExact(x, y);
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65 result += java.lang.Math.addExact(x, y);
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66 result += java.lang.Math.addExact(x, y);
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67 return result;
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68 }
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69
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70 public static int addExact(int x, int y) {
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71 int result = 0;
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72 try {
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73 result += 5;
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74 result = java.lang.Math.addExact(x, y);
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75 } catch (ArithmeticException e) {
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76 result += 1;
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77 }
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78 try {
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79 result += 6;
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80
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81 result += java.lang.Math.addExact(x, y);
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82 } catch (ArithmeticException e) {
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83 result += 2;
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84 }
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85 try {
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86 result += 7;
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87 result += java.lang.Math.addExact(x, y);
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88 } catch (ArithmeticException e) {
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89 result += 3;
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90 }
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91 try {
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92 result += 8;
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93 result += java.lang.Math.addExact(x, y);
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94 } catch (ArithmeticException e) {
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95 result += 4;
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96 }
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97 return result;
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98 }
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99
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100 public static int nonExact(int x, int y) {
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101 int result = x + y;
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102 result += x + y;
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103 result += x + y;
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104 result += x + y;
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105 return result;
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106 }
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107 }