1 /* |
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2 * Copyright (c) 2018, 2019, 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 4169183 |
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27 * @summary Check for correct inlining by the interpreter (widefp and strictfp). |
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28 * The default is widefp. A strictfp method was getting inlined |
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29 * into a widefp method. |
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30 */ |
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31 |
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32 import java.io.PrintStream; |
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33 |
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34 public class WideStrictInline { |
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35 static PrintStream out; |
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36 static float halfUlp; |
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37 |
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38 static { |
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39 halfUlp = 1; |
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40 for ( int i = 127 - 24; i > 0; i-- ) |
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41 halfUlp *= 2; |
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42 } |
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43 |
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44 public static void main(String argv[]) throws Exception { |
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45 out = System.err; |
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46 pr(-1,"halfUlp",halfUlp); |
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47 WideStrictInline obj = new WideStrictInline(); |
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48 for( int i=0; i<48; i++ ) |
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49 obj.instanceMethod( i ); |
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50 } |
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51 |
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52 private static void pr(int i, String desc, float r) { |
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53 out.print(" i=("+i+") "+desc+" ; == "+r); |
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54 out.println(" , 0x"+Integer.toHexString(Float.floatToIntBits(r))); |
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55 } |
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56 |
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57 private static strictfp float WideStrictInline(float par) { |
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58 return par; |
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59 } |
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60 |
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61 public static strictfp float strictValue(int i) { |
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62 float r; |
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63 switch (i%4) { |
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64 case 0: r = -Float.MAX_VALUE; break; |
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65 case 1: r = Float.MAX_VALUE; break; |
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66 case 2: r = Float.MIN_VALUE; break; |
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67 default : r = 1L << 24; |
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68 } |
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69 return r; |
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70 } |
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71 |
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72 void instanceMethod (int i) throws Exception { |
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73 float r; |
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74 switch (i%4) { |
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75 case 0: |
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76 if (!Float.isInfinite( WideStrictInline(strictValue(i)*2) + |
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77 Float.MAX_VALUE )) |
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78 { |
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79 pr(i, |
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80 "WideStrictInline(-Float.MAX_VALUE * 2) " + |
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81 "!= Float.NEGATIVE_INFINITY" |
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82 ,WideStrictInline(strictValue(i)*2) + Float.MAX_VALUE); |
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83 } |
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84 r = WideStrictInline(strictValue(i)*2) + Float.MAX_VALUE; |
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85 if ( !Float.isInfinite( r ) ) { |
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86 pr(i,"r != Float.NEGATIVE_INFINITY",r); |
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87 throw new RuntimeException(); |
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88 } |
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89 break; |
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90 case 1: |
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91 if (!Float.isInfinite(WideStrictInline(strictValue(i)+halfUlp) - |
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92 Float.MAX_VALUE )) { |
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93 pr(i,"WideStrictInline(Float.MAX_VALUE+halfUlp) " + |
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94 "!= Float.POSITIVE_INFINITY" |
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95 ,WideStrictInline(strictValue(i)+halfUlp) - Float.MAX_VALUE); |
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96 } |
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97 r = WideStrictInline(strictValue(i)+halfUlp) - Float.MAX_VALUE; |
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98 if ( !Float.isInfinite( r ) ) { |
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99 pr(i,"r != Float.POSITIVE_INFINITY",r); |
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100 throw new RuntimeException(); |
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101 } |
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102 break; |
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103 case 2: |
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104 if (WideStrictInline(strictValue(i)/2) != 0) { |
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105 pr(i,"WideStrictInline(Float.MIN_VALUE/2) != 0", |
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106 WideStrictInline(strictValue(i)/2)); |
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107 } |
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108 r = WideStrictInline(strictValue(i)/2); |
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109 if ( r != 0 ) { |
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110 pr(i,"r != 0",r); |
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111 throw new RuntimeException(); |
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112 } |
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113 break; |
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114 default: |
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115 if (WideStrictInline(strictValue(i)-0.5f) - strictValue(i) != 0) { |
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116 pr(i,"WideStrictInline(2^24-0.5) != 2^24", |
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117 WideStrictInline(strictValue(i)-0.5f)); |
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118 } |
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119 r = WideStrictInline(strictValue(i)-0.5f); |
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120 if ( r - strictValue(i) != 0 ) { |
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121 pr(i,"r != 2^24",r); |
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122 throw new RuntimeException(); |
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123 } |
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124 } |
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125 } |
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126 |
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127 } |
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