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