1 //===-- floattixf.c - Test __floattixf ------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file tests __floattixf for the compiler_rt library. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #if __x86_64 15 16 #include "int_lib.h" 17 #include <float.h> 18 #include <stdio.h> 19 20 // Returns: convert a to a long double, rounding toward even. 21 22 // Assumption: long double is a IEEE 80 bit floating point type padded to 128 bits 23 // ti_int is a 128 bit integral type 24 25 // gggg gggg gggg gggg gggg gggg gggg gggg | gggg gggg gggg gggg seee eeee eeee eeee | 26 // 1mmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm 27 28 long double __floattixf(ti_int a); 29 30 int test__floattixf(ti_int a, long double expected) 31 { 32 long double x = __floattixf(a); 33 if (x != expected) 34 { 35 twords at; 36 at.all = a; 37 printf("error in __floattixf(0x%.16llX%.16llX) = %LA, expected %LA\n", 38 at.s.high, at.s.low, x, expected); 39 } 40 return x != expected; 41 } 42 43 char assumption_1[sizeof(ti_int) == 2*sizeof(di_int)] = {0}; 44 char assumption_2[sizeof(ti_int)*CHAR_BIT == 128] = {0}; 45 char assumption_3[sizeof(long double)*CHAR_BIT == 128] = {0}; 46 47 #endif 48 49 int main() 50 { 51 #if __x86_64 52 if (test__floattixf(0, 0.0)) 53 return 1; 54 55 if (test__floattixf(1, 1.0)) 56 return 1; 57 if (test__floattixf(2, 2.0)) 58 return 1; 59 if (test__floattixf(20, 20.0)) 60 return 1; 61 if (test__floattixf(-1, -1.0)) 62 return 1; 63 if (test__floattixf(-2, -2.0)) 64 return 1; 65 if (test__floattixf(-20, -20.0)) 66 return 1; 67 68 if (test__floattixf(0x7FFFFF8000000000LL, 0x1.FFFFFEp+62)) 69 return 1; 70 if (test__floattixf(0x7FFFFFFFFFFFF800LL, 0x1.FFFFFFFFFFFFEp+62)) 71 return 1; 72 if (test__floattixf(0x7FFFFF0000000000LL, 0x1.FFFFFCp+62)) 73 return 1; 74 if (test__floattixf(0x7FFFFFFFFFFFF000LL, 0x1.FFFFFFFFFFFFCp+62)) 75 return 1; 76 77 if (test__floattixf(make_ti(0x8000008000000000LL, 0), -0x1.FFFFFEp+126)) 78 return 1; 79 if (test__floattixf(make_ti(0x8000000000000800LL, 0), -0x1.FFFFFFFFFFFFEp+126)) 80 return 1; 81 if (test__floattixf(make_ti(0x8000010000000000LL, 0), -0x1.FFFFFCp+126)) 82 return 1; 83 if (test__floattixf(make_ti(0x8000000000001000LL, 0), -0x1.FFFFFFFFFFFFCp+126)) 84 return 1; 85 86 if (test__floattixf(make_ti(0x8000000000000000LL, 0), -0x1.000000p+127)) 87 return 1; 88 if (test__floattixf(make_ti(0x8000000000000001LL, 0), -0x1.FFFFFFFFFFFFFFFCp+126L)) 89 return 1; 90 91 if (test__floattixf(0x0007FB72E8000000LL, 0x1.FEDCBAp+50)) 92 return 1; 93 94 if (test__floattixf(0x0007FB72EA000000LL, 0x1.FEDCBA8p+50)) 95 return 1; 96 if (test__floattixf(0x0007FB72EB000000LL, 0x1.FEDCBACp+50)) 97 return 1; 98 if (test__floattixf(0x0007FB72EBFFFFFFLL, 0x1.FEDCBAFFFFFFCp+50)) 99 return 1; 100 if (test__floattixf(0x0007FB72EC000000LL, 0x1.FEDCBBp+50)) 101 return 1; 102 if (test__floattixf(0x0007FB72E8000001LL, 0x1.FEDCBA0000004p+50)) 103 return 1; 104 105 if (test__floattixf(0x0007FB72E6000000LL, 0x1.FEDCB98p+50)) 106 return 1; 107 if (test__floattixf(0x0007FB72E7000000LL, 0x1.FEDCB9Cp+50)) 108 return 1; 109 if (test__floattixf(0x0007FB72E7FFFFFFLL, 0x1.FEDCB9FFFFFFCp+50)) 110 return 1; 111 if (test__floattixf(0x0007FB72E4000001LL, 0x1.FEDCB90000004p+50)) 112 return 1; 113 if (test__floattixf(0x0007FB72E4000000LL, 0x1.FEDCB9p+50)) 114 return 1; 115 116 if (test__floattixf(0x023479FD0E092DC0LL, 0x1.1A3CFE870496Ep+57)) 117 return 1; 118 if (test__floattixf(0x023479FD0E092DA1LL, 0x1.1A3CFE870496D08p+57L)) 119 return 1; 120 if (test__floattixf(0x023479FD0E092DB0LL, 0x1.1A3CFE870496D8p+57L)) 121 return 1; 122 if (test__floattixf(0x023479FD0E092DB8LL, 0x1.1A3CFE870496DCp+57L)) 123 return 1; 124 if (test__floattixf(0x023479FD0E092DB6LL, 0x1.1A3CFE870496DBp+57L)) 125 return 1; 126 if (test__floattixf(0x023479FD0E092DBFLL, 0x1.1A3CFE870496DF8p+57L)) 127 return 1; 128 if (test__floattixf(0x023479FD0E092DC1LL, 0x1.1A3CFE870496E08p+57L)) 129 return 1; 130 if (test__floattixf(0x023479FD0E092DC7LL, 0x1.1A3CFE870496E38p+57L)) 131 return 1; 132 if (test__floattixf(0x023479FD0E092DC8LL, 0x1.1A3CFE870496E4p+57L)) 133 return 1; 134 if (test__floattixf(0x023479FD0E092DCFLL, 0x1.1A3CFE870496E78p+57L)) 135 return 1; 136 if (test__floattixf(0x023479FD0E092DD0LL, 0x1.1A3CFE870496E8p+57L)) 137 return 1; 138 if (test__floattixf(0x023479FD0E092DD1LL, 0x1.1A3CFE870496E88p+57L)) 139 return 1; 140 if (test__floattixf(0x023479FD0E092DD8LL, 0x1.1A3CFE870496ECp+57L)) 141 return 1; 142 if (test__floattixf(0x023479FD0E092DDFLL, 0x1.1A3CFE870496EF8p+57L)) 143 return 1; 144 if (test__floattixf(0x023479FD0E092DE0LL, 0x1.1A3CFE870496Fp+57)) 145 return 1; 146 147 if (test__floattixf(make_ti(0x023479FD0E092DC0LL, 0), 0x1.1A3CFE870496Ep+121L)) 148 return 1; 149 if (test__floattixf(make_ti(0x023479FD0E092DA1LL, 1), 0x1.1A3CFE870496D08p+121L)) 150 return 1; 151 if (test__floattixf(make_ti(0x023479FD0E092DB0LL, 2), 0x1.1A3CFE870496D8p+121L)) 152 return 1; 153 if (test__floattixf(make_ti(0x023479FD0E092DB8LL, 3), 0x1.1A3CFE870496DCp+121L)) 154 return 1; 155 if (test__floattixf(make_ti(0x023479FD0E092DB6LL, 4), 0x1.1A3CFE870496DBp+121L)) 156 return 1; 157 if (test__floattixf(make_ti(0x023479FD0E092DBFLL, 5), 0x1.1A3CFE870496DF8p+121L)) 158 return 1; 159 if (test__floattixf(make_ti(0x023479FD0E092DC1LL, 6), 0x1.1A3CFE870496E08p+121L)) 160 return 1; 161 if (test__floattixf(make_ti(0x023479FD0E092DC7LL, 7), 0x1.1A3CFE870496E38p+121L)) 162 return 1; 163 if (test__floattixf(make_ti(0x023479FD0E092DC8LL, 8), 0x1.1A3CFE870496E4p+121L)) 164 return 1; 165 if (test__floattixf(make_ti(0x023479FD0E092DCFLL, 9), 0x1.1A3CFE870496E78p+121L)) 166 return 1; 167 if (test__floattixf(make_ti(0x023479FD0E092DD0LL, 0), 0x1.1A3CFE870496E8p+121L)) 168 return 1; 169 if (test__floattixf(make_ti(0x023479FD0E092DD1LL, 11), 0x1.1A3CFE870496E88p+121L)) 170 return 1; 171 if (test__floattixf(make_ti(0x023479FD0E092DD8LL, 12), 0x1.1A3CFE870496ECp+121L)) 172 return 1; 173 if (test__floattixf(make_ti(0x023479FD0E092DDFLL, 13), 0x1.1A3CFE870496EF8p+121L)) 174 return 1; 175 if (test__floattixf(make_ti(0x023479FD0E092DE0LL, 14), 0x1.1A3CFE870496Fp+121L)) 176 return 1; 177 178 if (test__floattixf(make_ti(0, 0xFFFFFFFFFFFFFFFFLL), 0x1.FFFFFFFFFFFFFFFEp+63L)) 179 return 1; 180 181 if (test__floattixf(make_ti(0x0000123456789012LL, 0x3456100000000001LL), 182 0x1.2345678901234562p+108L)) 183 return 1; 184 if (test__floattixf(make_ti(0x0000123456789012LL, 0x3456200000000000LL), 185 0x1.2345678901234562p+108L)) 186 return 1; 187 if (test__floattixf(make_ti(0x0000123456789012LL, 0x34562FFFFFFFFFFFLL), 188 0x1.2345678901234562p+108L)) 189 return 1; 190 if (test__floattixf(make_ti(0x0000123456789012LL, 0x3456300000000000LL), 191 0x1.2345678901234564p+108L)) 192 return 1; 193 if (test__floattixf(make_ti(0x0000123456789012LL, 0x3456400000000000LL), 194 0x1.2345678901234564p+108L)) 195 return 1; 196 if (test__floattixf(make_ti(0x0000123456789012LL, 0x34564FFFFFFFFFFFLL), 197 0x1.2345678901234564p+108L)) 198 return 1; 199 if (test__floattixf(make_ti(0x0000123456789012LL, 0x3456500000000000LL), 200 0x1.2345678901234564p+108L)) 201 return 1; 202 if (test__floattixf(make_ti(0x0000123456789012LL, 0x3456500000000001LL), 203 0x1.2345678901234566p+108L)) 204 return 1; 205 if (test__floattixf(make_ti(0x0000123456789012LL, 0x34566FFFFFFFFFFFLL), 206 0x1.2345678901234566p+108L)) 207 return 1; 208 #endif 209 return 0; 210 } 211
