238 lines · c
1// RUN: %clang_builtins %s %librt -o %t && %run %t2// REQUIRES: librt_has_floatuntitf3 4#define QUAD_PRECISION5#include "fp_lib.h"6#include "int_lib.h"7#include <float.h>8#include <stdio.h>9 10// The testcase currently assumes IEEE TF format, once that has been11// fixed the defined(CRT_HAS_IEEE_TF) guard can be removed to enable it for12// IBM 128 floats as well.13#if defined(CRT_HAS_IEEE_TF)14 15# include "fp_test.h"16 17/* Returns: convert a tu_int to a tf_float, rounding toward even. */18 19/* Assumption: tf_float is a IEEE 128 bit floating point type20 * tu_int is a 128 bit integral type21 */22 23/* seee eeee eeee eeee mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm |24 * mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm25 */26 27COMPILER_RT_ABI tf_float __floatuntitf(tu_int a);28 29int _test__floatuntitf(int line, tu_int a, tf_float expected) {30 tf_float x = __floatuntitf(a);31 if (x != expected) {32 utwords at;33 at.all = a;34 __uint128_t expected_rep = toRep128(expected);35 __uint128_t res_rep = toRep128(x);36 printf("%s:%d: error in __floatuntitf(0x%.16llX%.16llX) = "37 "0x%.16llX%.16llX, expected 0x%.16llX%.16llX\n",38 __FILE__, line, at.s.high, at.s.low, (uint64_t)(res_rep >> 64),39 (uint64_t)res_rep, (uint64_t)(expected_rep >> 64),40 (uint64_t)expected_rep);41 }42 return x != expected;43}44# define test__floatuntitf(a, e) _test__floatuntitf(__LINE__, a, e)45 46char assumption_1[sizeof(tu_int) == 2 * sizeof(du_int)] = {0};47char assumption_2[sizeof(tu_int) * CHAR_BIT == 128] = {0};48char assumption_3[sizeof(tf_float) * CHAR_BIT == 128] = {0};49 50#endif51 52int main() {53#if defined(CRT_HAS_IEEE_TF)54 if (test__floatuntitf(0, TF_C(0.0)))55 return 1;56 57 if (test__floatuntitf(1, TF_C(1.0)))58 return 1;59 if (test__floatuntitf(2, TF_C(2.0)))60 return 1;61 if (test__floatuntitf(20, TF_C(20.0)))62 return 1;63 64 if (test__floatuntitf(0x7FFFFF8000000000ULL, TF_C(0x1.FFFFFEp+62)))65 return 1;66 if (test__floatuntitf(0x7FFFFFFFFFFFF800ULL, TF_C(0x1.FFFFFFFFFFFFEp+62)))67 return 1;68 if (test__floatuntitf(0x7FFFFF0000000000ULL, TF_C(0x1.FFFFFCp+62)))69 return 1;70 if (test__floatuntitf(0x7FFFFFFFFFFFF000ULL, TF_C(0x1.FFFFFFFFFFFFCp+62)))71 return 1;72 if (test__floatuntitf(0x7FFFFFFFFFFFFFFFULL, TF_C(0xF.FFFFFFFFFFFFFFEp+59)))73 return 1;74 if (test__floatuntitf(0xFFFFFFFFFFFFFFFEULL, TF_C(0xF.FFFFFFFFFFFFFFEp+60)))75 return 1;76 if (test__floatuntitf(0xFFFFFFFFFFFFFFFFULL, TF_C(0xF.FFFFFFFFFFFFFFFp+60)))77 return 1;78 79 if (test__floatuntitf(0x8000008000000000ULL, TF_C(0x8.000008p+60)))80 return 1;81 if (test__floatuntitf(0x8000000000000800ULL, TF_C(0x8.0000000000008p+60)))82 return 1;83 if (test__floatuntitf(0x8000010000000000ULL, TF_C(0x8.00001p+60)))84 return 1;85 if (test__floatuntitf(0x8000000000001000ULL, TF_C(0x8.000000000001p+60)))86 return 1;87 88 if (test__floatuntitf(0x8000000000000000ULL, TF_C(0x8p+60)))89 return 1;90 if (test__floatuntitf(0x8000000000000001ULL, TF_C(0x8.000000000000001p+60)))91 return 1;92 93 if (test__floatuntitf(0x0007FB72E8000000LL, TF_C(0x1.FEDCBAp+50)))94 return 1;95 96 if (test__floatuntitf(0x0007FB72EA000000LL, TF_C(0x1.FEDCBA8p+50)))97 return 1;98 if (test__floatuntitf(0x0007FB72EB000000LL, TF_C(0x1.FEDCBACp+50)))99 return 1;100 if (test__floatuntitf(0x0007FB72EBFFFFFFLL, TF_C(0x1.FEDCBAFFFFFFCp+50)))101 return 1;102 if (test__floatuntitf(0x0007FB72EC000000LL, TF_C(0x1.FEDCBBp+50)))103 return 1;104 if (test__floatuntitf(0x0007FB72E8000001LL, TF_C(0x1.FEDCBA0000004p+50)))105 return 1;106 107 if (test__floatuntitf(0x0007FB72E6000000LL, TF_C(0x1.FEDCB98p+50)))108 return 1;109 if (test__floatuntitf(0x0007FB72E7000000LL, TF_C(0x1.FEDCB9Cp+50)))110 return 1;111 if (test__floatuntitf(0x0007FB72E7FFFFFFLL, TF_C(0x1.FEDCB9FFFFFFCp+50)))112 return 1;113 if (test__floatuntitf(0x0007FB72E4000001LL, TF_C(0x1.FEDCB90000004p+50)))114 return 1;115 if (test__floatuntitf(0x0007FB72E4000000LL, TF_C(0x1.FEDCB9p+50)))116 return 1;117 118 if (test__floatuntitf(0x023479FD0E092DC0LL, TF_C(0x1.1A3CFE870496Ep+57)))119 return 1;120 if (test__floatuntitf(0x023479FD0E092DA1LL, TF_C(0x1.1A3CFE870496D08p+57)))121 return 1;122 if (test__floatuntitf(0x023479FD0E092DB0LL, TF_C(0x1.1A3CFE870496D8p+57)))123 return 1;124 if (test__floatuntitf(0x023479FD0E092DB8LL, TF_C(0x1.1A3CFE870496DCp+57)))125 return 1;126 if (test__floatuntitf(0x023479FD0E092DB6LL, TF_C(0x1.1A3CFE870496DBp+57)))127 return 1;128 if (test__floatuntitf(0x023479FD0E092DBFLL, TF_C(0x1.1A3CFE870496DF8p+57)))129 return 1;130 if (test__floatuntitf(0x023479FD0E092DC1LL, TF_C(0x1.1A3CFE870496E08p+57)))131 return 1;132 if (test__floatuntitf(0x023479FD0E092DC7LL, TF_C(0x1.1A3CFE870496E38p+57)))133 return 1;134 if (test__floatuntitf(0x023479FD0E092DC8LL, TF_C(0x1.1A3CFE870496E4p+57)))135 return 1;136 if (test__floatuntitf(0x023479FD0E092DCFLL, TF_C(0x1.1A3CFE870496E78p+57)))137 return 1;138 if (test__floatuntitf(0x023479FD0E092DD0LL, TF_C(0x1.1A3CFE870496E8p+57)))139 return 1;140 if (test__floatuntitf(0x023479FD0E092DD1LL, TF_C(0x1.1A3CFE870496E88p+57)))141 return 1;142 if (test__floatuntitf(0x023479FD0E092DD8LL, TF_C(0x1.1A3CFE870496ECp+57)))143 return 1;144 if (test__floatuntitf(0x023479FD0E092DDFLL, TF_C(0x1.1A3CFE870496EF8p+57)))145 return 1;146 if (test__floatuntitf(0x023479FD0E092DE0LL, TF_C(0x1.1A3CFE870496Fp+57)))147 return 1;148 149 if (test__floatuntitf(make_ti(0x023479FD0E092DC0LL, 0),150 TF_C(0x1.1A3CFE870496Ep+121)))151 return 1;152 if (test__floatuntitf(make_ti(0x023479FD0E092DA1LL, 1),153 TF_C(0x1.1A3CFE870496D08p+121)))154 return 1;155 if (test__floatuntitf(make_ti(0x023479FD0E092DB0LL, 2),156 TF_C(0x1.1A3CFE870496D8p+121)))157 return 1;158 if (test__floatuntitf(make_ti(0x023479FD0E092DB8LL, 3),159 TF_C(0x1.1A3CFE870496DCp+121)))160 return 1;161 if (test__floatuntitf(make_ti(0x023479FD0E092DB6LL, 4),162 TF_C(0x1.1A3CFE870496DBp+121)))163 return 1;164 if (test__floatuntitf(make_ti(0x023479FD0E092DBFLL, 5),165 TF_C(0x1.1A3CFE870496DF8p+121)))166 return 1;167 if (test__floatuntitf(make_ti(0x023479FD0E092DC1LL, 6),168 TF_C(0x1.1A3CFE870496E08p+121)))169 return 1;170 if (test__floatuntitf(make_ti(0x023479FD0E092DC7LL, 7),171 TF_C(0x1.1A3CFE870496E38p+121)))172 return 1;173 if (test__floatuntitf(make_ti(0x023479FD0E092DC8LL, 8),174 TF_C(0x1.1A3CFE870496E4p+121)))175 return 1;176 if (test__floatuntitf(make_ti(0x023479FD0E092DCFLL, 9),177 TF_C(0x1.1A3CFE870496E78p+121)))178 return 1;179 if (test__floatuntitf(make_ti(0x023479FD0E092DD0LL, 0),180 TF_C(0x1.1A3CFE870496E8p+121)))181 return 1;182 if (test__floatuntitf(make_ti(0x023479FD0E092DD1LL, 11),183 TF_C(0x1.1A3CFE870496E88p+121)))184 return 1;185 if (test__floatuntitf(make_ti(0x023479FD0E092DD8LL, 12),186 TF_C(0x1.1A3CFE870496ECp+121)))187 return 1;188 if (test__floatuntitf(make_ti(0x023479FD0E092DDFLL, 13),189 TF_C(0x1.1A3CFE870496EF8p+121)))190 return 1;191 if (test__floatuntitf(make_ti(0x023479FD0E092DE0LL, 14),192 TF_C(0x1.1A3CFE870496Fp+121)))193 return 1;194 195 if (test__floatuntitf(make_ti(0, 0xFFFFFFFFFFFFFFFFLL),196 TF_C(0x1.FFFFFFFFFFFFFFFEp+63)))197 return 1;198 199 if (test__floatuntitf(make_ti(0xFFFFFFFFFFFFFFFFLL, 0x0000000000000000LL),200 TF_C(0x1.FFFFFFFFFFFFFFFEp+127)))201 return 1;202 if (test__floatuntitf(make_ti(0xFFFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFFLL),203 TF_C(0x1.0000000000000000p+128)))204 return 1;205 206 if (test__floatuntitf(make_ti(0x123456789ABCDEF0LL, 0x123456789ABC2801LL),207 TF_C(0x1.23456789ABCDEF0123456789ABC3p+124)))208 return 1;209 if (test__floatuntitf(make_ti(0x123456789ABCDEF0LL, 0x123456789ABC3000LL),210 TF_C(0x1.23456789ABCDEF0123456789ABC3p+124)))211 return 1;212 if (test__floatuntitf(make_ti(0x123456789ABCDEF0LL, 0x123456789ABC37FFLL),213 TF_C(0x1.23456789ABCDEF0123456789ABC3p+124)))214 return 1;215 if (test__floatuntitf(make_ti(0x123456789ABCDEF0LL, 0x123456789ABC3800LL),216 TF_C(0x1.23456789ABCDEF0123456789ABC4p+124)))217 return 1;218 if (test__floatuntitf(make_ti(0x123456789ABCDEF0LL, 0x123456789ABC4000LL),219 TF_C(0x1.23456789ABCDEF0123456789ABC4p+124)))220 return 1;221 if (test__floatuntitf(make_ti(0x123456789ABCDEF0LL, 0x123456789ABC47FFLL),222 TF_C(0x1.23456789ABCDEF0123456789ABC4p+124)))223 return 1;224 if (test__floatuntitf(make_ti(0x123456789ABCDEF0LL, 0x123456789ABC4800LL),225 TF_C(0x1.23456789ABCDEF0123456789ABC4p+124)))226 return 1;227 if (test__floatuntitf(make_ti(0x123456789ABCDEF0LL, 0x123456789ABC4801LL),228 TF_C(0x1.23456789ABCDEF0123456789ABC5p+124)))229 return 1;230 if (test__floatuntitf(make_ti(0x123456789ABCDEF0LL, 0x123456789ABC57FFLL),231 TF_C(0x1.23456789ABCDEF0123456789ABC5p+124)))232 return 1;233#else234 printf("skipped\n");235#endif236 return 0;237}238