1 // RUN: %clang_builtins %s %librt -o %t && %run %t 2 // REQUIRES: librt_has_floatuntitf 3 //===-- floatuntitf.c - Test __floatuntitf --------------------------------===// 4 // 5 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 6 // See https://llvm.org/LICENSE.txt for license information. 7 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 8 // 9 //===----------------------------------------------------------------------===// 10 // 11 // This file tests __floatuntitf for the compiler_rt library. 12 // 13 //===----------------------------------------------------------------------===// 14 15 #define QUAD_PRECISION 16 #include "fp_lib.h" 17 #include "int_lib.h" 18 #include <float.h> 19 #include <stdio.h> 20 21 #if defined(CRT_HAS_128BIT) && defined(CRT_LDBL_128BIT) 22 23 /* Returns: convert a tu_int to a fp_t, rounding toward even. */ 24 25 /* Assumption: fp_t is a IEEE 128 bit floating point type 26 * tu_int is a 128 bit integral type 27 */ 28 29 /* seee eeee eeee eeee mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm | 30 * mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm 31 */ 32 33 COMPILER_RT_ABI fp_t __floatuntitf(tu_int a); 34 35 int test__floatuntitf(tu_int a, fp_t expected) { 36 fp_t x = __floatuntitf(a); 37 if (x != expected) { 38 utwords at; 39 at.all = a; 40 printf("error in __floatuntitf(0x%.16llX%.16llX) = %LA, expected %LA\n", 41 at.s.high, at.s.low, x, expected); 42 } 43 return x != expected; 44 } 45 46 char assumption_1[sizeof(tu_int) == 2*sizeof(du_int)] = {0}; 47 char assumption_2[sizeof(tu_int)*CHAR_BIT == 128] = {0}; 48 char assumption_3[sizeof(fp_t)*CHAR_BIT == 128] = {0}; 49 50 #endif 51 52 int main() { 53 #if defined(CRT_HAS_128BIT) && defined(CRT_LDBL_128BIT) 54 if (test__floatuntitf(0, 0.0)) 55 return 1; 56 57 if (test__floatuntitf(1, 1.0)) 58 return 1; 59 if (test__floatuntitf(2, 2.0)) 60 return 1; 61 if (test__floatuntitf(20, 20.0)) 62 return 1; 63 64 if (test__floatuntitf(0x7FFFFF8000000000ULL, 0x1.FFFFFEp+62)) 65 return 1; 66 if (test__floatuntitf(0x7FFFFFFFFFFFF800ULL, 0x1.FFFFFFFFFFFFEp+62)) 67 return 1; 68 if (test__floatuntitf(0x7FFFFF0000000000ULL, 0x1.FFFFFCp+62)) 69 return 1; 70 if (test__floatuntitf(0x7FFFFFFFFFFFF000ULL, 0x1.FFFFFFFFFFFFCp+62)) 71 return 1; 72 if (test__floatuntitf(0x7FFFFFFFFFFFFFFFULL, 0xF.FFFFFFFFFFFFFFEp+59L)) 73 return 1; 74 if (test__floatuntitf(0xFFFFFFFFFFFFFFFEULL, 0xF.FFFFFFFFFFFFFFEp+60L)) 75 return 1; 76 if (test__floatuntitf(0xFFFFFFFFFFFFFFFFULL, 0xF.FFFFFFFFFFFFFFFp+60L)) 77 return 1; 78 79 if (test__floatuntitf(0x8000008000000000ULL, 0x8.000008p+60)) 80 return 1; 81 if (test__floatuntitf(0x8000000000000800ULL, 0x8.0000000000008p+60)) 82 return 1; 83 if (test__floatuntitf(0x8000010000000000ULL, 0x8.00001p+60)) 84 return 1; 85 if (test__floatuntitf(0x8000000000001000ULL, 0x8.000000000001p+60)) 86 return 1; 87 88 if (test__floatuntitf(0x8000000000000000ULL, 0x8p+60)) 89 return 1; 90 if (test__floatuntitf(0x8000000000000001ULL, 0x8.000000000000001p+60L)) 91 return 1; 92 93 if (test__floatuntitf(0x0007FB72E8000000LL, 0x1.FEDCBAp+50)) 94 return 1; 95 96 if (test__floatuntitf(0x0007FB72EA000000LL, 0x1.FEDCBA8p+50)) 97 return 1; 98 if (test__floatuntitf(0x0007FB72EB000000LL, 0x1.FEDCBACp+50)) 99 return 1; 100 if (test__floatuntitf(0x0007FB72EBFFFFFFLL, 0x1.FEDCBAFFFFFFCp+50)) 101 return 1; 102 if (test__floatuntitf(0x0007FB72EC000000LL, 0x1.FEDCBBp+50)) 103 return 1; 104 if (test__floatuntitf(0x0007FB72E8000001LL, 0x1.FEDCBA0000004p+50)) 105 return 1; 106 107 if (test__floatuntitf(0x0007FB72E6000000LL, 0x1.FEDCB98p+50)) 108 return 1; 109 if (test__floatuntitf(0x0007FB72E7000000LL, 0x1.FEDCB9Cp+50)) 110 return 1; 111 if (test__floatuntitf(0x0007FB72E7FFFFFFLL, 0x1.FEDCB9FFFFFFCp+50)) 112 return 1; 113 if (test__floatuntitf(0x0007FB72E4000001LL, 0x1.FEDCB90000004p+50)) 114 return 1; 115 if (test__floatuntitf(0x0007FB72E4000000LL, 0x1.FEDCB9p+50)) 116 return 1; 117 118 if (test__floatuntitf(0x023479FD0E092DC0LL, 0x1.1A3CFE870496Ep+57)) 119 return 1; 120 if (test__floatuntitf(0x023479FD0E092DA1LL, 0x1.1A3CFE870496D08p+57L)) 121 return 1; 122 if (test__floatuntitf(0x023479FD0E092DB0LL, 0x1.1A3CFE870496D8p+57L)) 123 return 1; 124 if (test__floatuntitf(0x023479FD0E092DB8LL, 0x1.1A3CFE870496DCp+57L)) 125 return 1; 126 if (test__floatuntitf(0x023479FD0E092DB6LL, 0x1.1A3CFE870496DBp+57L)) 127 return 1; 128 if (test__floatuntitf(0x023479FD0E092DBFLL, 0x1.1A3CFE870496DF8p+57L)) 129 return 1; 130 if (test__floatuntitf(0x023479FD0E092DC1LL, 0x1.1A3CFE870496E08p+57L)) 131 return 1; 132 if (test__floatuntitf(0x023479FD0E092DC7LL, 0x1.1A3CFE870496E38p+57L)) 133 return 1; 134 if (test__floatuntitf(0x023479FD0E092DC8LL, 0x1.1A3CFE870496E4p+57L)) 135 return 1; 136 if (test__floatuntitf(0x023479FD0E092DCFLL, 0x1.1A3CFE870496E78p+57L)) 137 return 1; 138 if (test__floatuntitf(0x023479FD0E092DD0LL, 0x1.1A3CFE870496E8p+57L)) 139 return 1; 140 if (test__floatuntitf(0x023479FD0E092DD1LL, 0x1.1A3CFE870496E88p+57L)) 141 return 1; 142 if (test__floatuntitf(0x023479FD0E092DD8LL, 0x1.1A3CFE870496ECp+57L)) 143 return 1; 144 if (test__floatuntitf(0x023479FD0E092DDFLL, 0x1.1A3CFE870496EF8p+57L)) 145 return 1; 146 if (test__floatuntitf(0x023479FD0E092DE0LL, 0x1.1A3CFE870496Fp+57)) 147 return 1; 148 149 if (test__floatuntitf(make_ti(0x023479FD0E092DC0LL, 0), 0x1.1A3CFE870496Ep+121L)) 150 return 1; 151 if (test__floatuntitf(make_ti(0x023479FD0E092DA1LL, 1), 0x1.1A3CFE870496D08p+121L)) 152 return 1; 153 if (test__floatuntitf(make_ti(0x023479FD0E092DB0LL, 2), 0x1.1A3CFE870496D8p+121L)) 154 return 1; 155 if (test__floatuntitf(make_ti(0x023479FD0E092DB8LL, 3), 0x1.1A3CFE870496DCp+121L)) 156 return 1; 157 if (test__floatuntitf(make_ti(0x023479FD0E092DB6LL, 4), 0x1.1A3CFE870496DBp+121L)) 158 return 1; 159 if (test__floatuntitf(make_ti(0x023479FD0E092DBFLL, 5), 0x1.1A3CFE870496DF8p+121L)) 160 return 1; 161 if (test__floatuntitf(make_ti(0x023479FD0E092DC1LL, 6), 0x1.1A3CFE870496E08p+121L)) 162 return 1; 163 if (test__floatuntitf(make_ti(0x023479FD0E092DC7LL, 7), 0x1.1A3CFE870496E38p+121L)) 164 return 1; 165 if (test__floatuntitf(make_ti(0x023479FD0E092DC8LL, 8), 0x1.1A3CFE870496E4p+121L)) 166 return 1; 167 if (test__floatuntitf(make_ti(0x023479FD0E092DCFLL, 9), 0x1.1A3CFE870496E78p+121L)) 168 return 1; 169 if (test__floatuntitf(make_ti(0x023479FD0E092DD0LL, 0), 0x1.1A3CFE870496E8p+121L)) 170 return 1; 171 if (test__floatuntitf(make_ti(0x023479FD0E092DD1LL, 11), 0x1.1A3CFE870496E88p+121L)) 172 return 1; 173 if (test__floatuntitf(make_ti(0x023479FD0E092DD8LL, 12), 0x1.1A3CFE870496ECp+121L)) 174 return 1; 175 if (test__floatuntitf(make_ti(0x023479FD0E092DDFLL, 13), 0x1.1A3CFE870496EF8p+121L)) 176 return 1; 177 if (test__floatuntitf(make_ti(0x023479FD0E092DE0LL, 14), 0x1.1A3CFE870496Fp+121L)) 178 return 1; 179 180 if (test__floatuntitf(make_ti(0, 0xFFFFFFFFFFFFFFFFLL), 0x1.FFFFFFFFFFFFFFFEp+63L)) 181 return 1; 182 183 if (test__floatuntitf(make_ti(0xFFFFFFFFFFFFFFFFLL, 0x0000000000000000LL), 184 0x1.FFFFFFFFFFFFFFFEp+127L)) 185 return 1; 186 if (test__floatuntitf(make_ti(0xFFFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFFLL), 187 0x1.0000000000000000p+128L)) 188 return 1; 189 190 if (test__floatuntitf(make_ti(0x123456789ABCDEF0LL, 0x123456789ABC2801LL), 191 0x1.23456789ABCDEF0123456789ABC3p+124L)) 192 return 1; 193 if (test__floatuntitf(make_ti(0x123456789ABCDEF0LL, 0x123456789ABC3000LL), 194 0x1.23456789ABCDEF0123456789ABC3p+124L)) 195 return 1; 196 if (test__floatuntitf(make_ti(0x123456789ABCDEF0LL, 0x123456789ABC37FFLL), 197 0x1.23456789ABCDEF0123456789ABC3p+124L)) 198 return 1; 199 if (test__floatuntitf(make_ti(0x123456789ABCDEF0LL, 0x123456789ABC3800LL), 200 0x1.23456789ABCDEF0123456789ABC4p+124L)) 201 return 1; 202 if (test__floatuntitf(make_ti(0x123456789ABCDEF0LL, 0x123456789ABC4000LL), 203 0x1.23456789ABCDEF0123456789ABC4p+124L)) 204 return 1; 205 if (test__floatuntitf(make_ti(0x123456789ABCDEF0LL, 0x123456789ABC47FFLL), 206 0x1.23456789ABCDEF0123456789ABC4p+124L)) 207 return 1; 208 if (test__floatuntitf(make_ti(0x123456789ABCDEF0LL, 0x123456789ABC4800LL), 209 0x1.23456789ABCDEF0123456789ABC4p+124L)) 210 return 1; 211 if (test__floatuntitf(make_ti(0x123456789ABCDEF0LL, 0x123456789ABC4801LL), 212 0x1.23456789ABCDEF0123456789ABC5p+124L)) 213 return 1; 214 if (test__floatuntitf(make_ti(0x123456789ABCDEF0LL, 0x123456789ABC57FFLL), 215 0x1.23456789ABCDEF0123456789ABC5p+124L)) 216 return 1; 217 #else 218 printf("skipped\n"); 219 #endif 220 return 0; 221 } 222