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annotate test/compiler/intrinsics/mathexact/SubExactIRepeatTest.java @ 12972:59e8ad757e19

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8026844: Various Math functions needs intrinsification Reviewed-by: kvn, twisti
author rbackman
date Fri, 18 Oct 2013 10:41:56 +0200
parents
children 9949533a8623
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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 8026844
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27 * @summary Test repeating subtractExact
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28 * @compile SubExactIRepeatTest.java Verify.java
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29 * @run main SubExactIRepeatTest
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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 SubExactIRepeatTest {
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36 public static void main(String[] args) {
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37 runTest(new Verify.SubExactI());
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38 }
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39
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40 public static int nonExact(int x, int y, Verify.BinaryMethod method) {
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41 int result = method.unchecked(x, y);
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42 result += method.unchecked(x, y);
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43 result += method.unchecked(x, y);
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44 result += method.unchecked(x, y);
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45 return result;
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46 }
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47
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48 public static void runTest(Verify.BinaryMethod method) {
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49 java.util.Random rnd = new java.util.Random();
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50 for (int i = 0; i < 50000; ++i) {
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51 int x = Integer.MIN_VALUE + 10;
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52 int y = Integer.MAX_VALUE - 10 + rnd.nextInt(5);
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53
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54 int c = rnd.nextInt() / 2;
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55 int d = rnd.nextInt() / 2;
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56
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57 int a = catchingExact(x, y, method);
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58
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59 if (a != 36) {
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60 throw new RuntimeException("a != 36 : " + a);
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61 }
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62
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63 int b = nonExact(c, d, method);
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64 int n = exact(c, d, method);
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65
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66
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67 if (n != b) {
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68 throw new RuntimeException("n != b : " + n + " != " + b);
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69 }
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70 }
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71 }
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72
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73 public static int exact(int x, int y, Verify.BinaryMethod method) {
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74 int result = 0;
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75 result += method.checkMethod(x, y);
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76 result += method.checkMethod(x, y);
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77 result += method.checkMethod(x, y);
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78 result += method.checkMethod(x, y);
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79 return result;
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80 }
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81
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82 public static int catchingExact(int x, int y, Verify.BinaryMethod method) {
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83 int result = 0;
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84 try {
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85 result += 5;
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86 result = method.checkMethod(x, y);
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87 } catch (ArithmeticException e) {
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88 result += 1;
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89 }
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90 try {
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91 result += 6;
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92
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93 result += method.checkMethod(x, y);
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94 } catch (ArithmeticException e) {
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95 result += 2;
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96 }
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97 try {
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98 result += 7;
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99 result += method.checkMethod(x, y);
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100 } catch (ArithmeticException e) {
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101 result += 3;
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102 }
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103 try {
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104 result += 8;
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105 result += method.checkMethod(x, y);
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106 } catch (ArithmeticException e) {
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107 result += 4;
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108 }
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109 return result;
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110 }
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111 }