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1 /* |
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2 * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved. |
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3 * Copyright (c) 2018, Arm Limited. All rights reserved. |
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4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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5 * |
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6 * This code is free software; you can redistribute it and/or modify it |
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7 * under the terms of the GNU General Public License version 2 only, as |
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8 * published by the Free Software Foundation. |
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9 * |
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10 * This code is distributed in the hope that it will be useful, but WITHOUT |
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11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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13 * version 2 for more details (a copy is included in the LICENSE file that |
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14 * accompanied this code). |
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15 * |
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16 * You should have received a copy of the GNU General Public License version |
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17 * 2 along with this work; if not, write to the Free Software Foundation, |
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18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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19 * |
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20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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21 * or visit www.oracle.com if you need additional information or have any |
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22 * questions. |
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23 */ |
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24 |
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25 /* |
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26 * @test |
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27 * @bug 8212043 |
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28 * @summary Test compiler intrinsics of floating-point Math.min/max |
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29 * |
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30 * @run main/othervm -Xint compiler.intrinsics.math.TestFpMinMaxIntrinsics |
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31 * @run main/othervm -XX:+UnlockDiagnosticVMOptions |
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32 * -Xcomp -XX:TieredStopAtLevel=1 |
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33 * -XX:CompileOnly=java/lang/Math |
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34 * compiler.intrinsics.math.TestFpMinMaxIntrinsics |
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35 * @run main/othervm -XX:+UnlockDiagnosticVMOptions |
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36 * -Xcomp -XX:-TieredCompilation |
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37 * -XX:CompileOnly=java/lang/Math |
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38 * compiler.intrinsics.math.TestFpMinMaxIntrinsics |
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39 */ |
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40 |
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41 package compiler.intrinsics.math; |
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42 |
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43 import java.util.Arrays; |
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44 |
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45 public class TestFpMinMaxIntrinsics { |
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46 |
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47 private static final float fPos = 15280.0f; |
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48 private static final float fNeg = -55555.5f; |
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49 private static final float fPosZero = 0.0f; |
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50 private static final float fNegZero = -0.0f; |
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51 private static final float fPosInf = Float.POSITIVE_INFINITY; |
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52 private static final float fNegInf = Float.NEGATIVE_INFINITY; |
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53 private static final float fNaN = Float.NaN; |
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54 |
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55 private static final double dPos = 482390926662501720.0; |
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56 private static final double dNeg = -333333333333333333.3; |
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57 private static final double dPosZero = 0.0; |
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58 private static final double dNegZero = -0.0; |
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59 private static final double dPosInf = Double.POSITIVE_INFINITY; |
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60 private static final double dNegInf = Double.NEGATIVE_INFINITY; |
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61 private static final double dNaN = Double.NaN; |
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62 |
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63 private static final float[][] f_cases = { |
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64 // a b min max |
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65 { fPos, fPos, fPos, fPos }, |
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66 { fPos, fNeg, fNeg, fPos }, |
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67 { fPosZero, fNegZero, fNegZero, fPosZero }, |
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68 { fNegZero, fNegZero, fNegZero, fNegZero }, |
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69 { fPos, fPosInf, fPos, fPosInf }, |
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70 { fNeg, fNegInf, fNegInf, fNeg }, |
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71 { fPos, fNaN, fNaN, fNaN }, |
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72 { fNegInf, fNaN, fNaN, fNaN }, |
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73 }; |
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74 |
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75 private static final double[][] d_cases = { |
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76 // a b min max |
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77 { dPos, dPos, dPos, dPos }, |
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78 { dPos, dNeg, dNeg, dPos }, |
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79 { dPosZero, dNegZero, dNegZero, dPosZero }, |
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80 { dNegZero, dNegZero, dNegZero, dNegZero }, |
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81 { dPos, dPosInf, dPos, dPosInf }, |
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82 { dNeg, dNegInf, dNegInf, dNeg }, |
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83 { dPos, dNaN, dNaN, dNaN }, |
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84 { dNegInf, dNaN, dNaN, dNaN }, |
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85 }; |
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86 |
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87 private static void fTest(float[] row) { |
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88 float min = Math.min(row[0], row[1]); |
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89 float max = Math.max(row[0], row[1]); |
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90 if (Float.isNaN(min) && Float.isNaN(max) |
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91 && Float.isNaN(row[2]) && Float.isNaN(row[3])) { |
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92 // Return if all of them are NaN |
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93 return; |
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94 } |
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95 if (min != row[2] || max != row[3]) { |
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96 throw new AssertionError("Unexpected result of float min/max: " + |
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97 "a = " + row[0] + ", b = " + row[1] + ", " + |
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98 "result = (" + min + ", " + max + "), " + |
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99 "expected = (" + row[2] + ", " + row[3] + ")"); |
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100 } |
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101 } |
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102 |
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103 private static void dTest(double[] row) { |
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104 double min = Math.min(row[0], row[1]); |
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105 double max = Math.max(row[0], row[1]); |
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106 if (Double.isNaN(min) && Double.isNaN(max) |
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107 && Double.isNaN(row[2]) && Double.isNaN(row[3])) { |
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108 // Return if all of them are NaN |
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109 return; |
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110 } |
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111 if (min != row[2] || max != row[3]) { |
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112 throw new AssertionError("Unexpected result of double min/max" + |
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113 "a = " + row[0] + ", b = " + row[1] + ", " + |
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114 "result = (" + min + ", " + max + "), " + |
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115 "expected = (" + row[2] + ", " + row[3] + ")"); |
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116 } |
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117 } |
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118 |
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119 public static void main(String[] args) { |
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120 Arrays.stream(f_cases).forEach(TestFpMinMaxIntrinsics::fTest); |
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121 Arrays.stream(d_cases).forEach(TestFpMinMaxIntrinsics::dTest); |
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122 System.out.println("PASS"); |
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123 } |
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124 } |
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125 |