211 lines · c
1// RUN: %clang_builtins %s %librt -o %t && %run %t2// REQUIRES: librt_has_floatuntixf3// REQUIRES: x86-target-arch4 5#include "int_lib.h"6#include <float.h>7#include <stdio.h>8 9#if defined(CRT_HAS_128BIT) && HAS_80_BIT_LONG_DOUBLE10 11// Returns: convert a to a long double, rounding toward even.12 13// Assumption: long double is a IEEE 80 bit floating point type padded to 128 bits14// tu_int is a 128 bit integral type15 16// gggg gggg gggg gggg gggg gggg gggg gggg | gggg gggg gggg gggg seee eeee eeee eeee |17// 1mmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm18 19COMPILER_RT_ABI long double __floatuntixf(tu_int a);20 21int test__floatuntixf(tu_int a, long double expected)22{23 long double x = __floatuntixf(a);24 if (x != expected)25 {26 utwords at;27 at.all = a;28 printf("error in __floatuntixf(0x%.16llX%.16llX) = %LA, expected %LA\n",29 at.s.high, at.s.low, x, expected);30 }31 return x != expected;32}33 34COMPILE_TIME_ASSERT(sizeof(tu_int) == 2*sizeof(du_int));35COMPILE_TIME_ASSERT(sizeof(tu_int)*CHAR_BIT == 128);36COMPILE_TIME_ASSERT(sizeof(long double)*CHAR_BIT == 128);37 38#endif39 40int main()41{42#if defined(CRT_HAS_128BIT) && HAS_80_BIT_LONG_DOUBLE43 if (test__floatuntixf(0, 0.0))44 return 1;45 46 if (test__floatuntixf(1, 1.0))47 return 1;48 if (test__floatuntixf(2, 2.0))49 return 1;50 if (test__floatuntixf(20, 20.0))51 return 1;52 53 if (test__floatuntixf(0x7FFFFF8000000000ULL, 0x1.FFFFFEp+62))54 return 1;55 if (test__floatuntixf(0x7FFFFFFFFFFFF800ULL, 0x1.FFFFFFFFFFFFEp+62))56 return 1;57 if (test__floatuntixf(0x7FFFFF0000000000ULL, 0x1.FFFFFCp+62))58 return 1;59 if (test__floatuntixf(0x7FFFFFFFFFFFF000ULL, 0x1.FFFFFFFFFFFFCp+62))60 return 1;61 if (test__floatuntixf(0x7FFFFFFFFFFFFFFFULL, 0xF.FFFFFFFFFFFFFFEp+59L))62 return 1;63 if (test__floatuntixf(0xFFFFFFFFFFFFFFFEULL, 0xF.FFFFFFFFFFFFFFEp+60L))64 return 1;65 if (test__floatuntixf(0xFFFFFFFFFFFFFFFFULL, 0xF.FFFFFFFFFFFFFFFp+60L))66 return 1;67 68 if (test__floatuntixf(0x8000008000000000ULL, 0x8.000008p+60))69 return 1;70 if (test__floatuntixf(0x8000000000000800ULL, 0x8.0000000000008p+60))71 return 1;72 if (test__floatuntixf(0x8000010000000000ULL, 0x8.00001p+60))73 return 1;74 if (test__floatuntixf(0x8000000000001000ULL, 0x8.000000000001p+60))75 return 1;76 77 if (test__floatuntixf(0x8000000000000000ULL, 0x8p+60))78 return 1;79 if (test__floatuntixf(0x8000000000000001ULL, 0x8.000000000000001p+60L))80 return 1;81 82 if (test__floatuntixf(0x0007FB72E8000000LL, 0x1.FEDCBAp+50))83 return 1;84 85 if (test__floatuntixf(0x0007FB72EA000000LL, 0x1.FEDCBA8p+50))86 return 1;87 if (test__floatuntixf(0x0007FB72EB000000LL, 0x1.FEDCBACp+50))88 return 1;89 if (test__floatuntixf(0x0007FB72EBFFFFFFLL, 0x1.FEDCBAFFFFFFCp+50))90 return 1;91 if (test__floatuntixf(0x0007FB72EC000000LL, 0x1.FEDCBBp+50))92 return 1;93 if (test__floatuntixf(0x0007FB72E8000001LL, 0x1.FEDCBA0000004p+50))94 return 1;95 96 if (test__floatuntixf(0x0007FB72E6000000LL, 0x1.FEDCB98p+50))97 return 1;98 if (test__floatuntixf(0x0007FB72E7000000LL, 0x1.FEDCB9Cp+50))99 return 1;100 if (test__floatuntixf(0x0007FB72E7FFFFFFLL, 0x1.FEDCB9FFFFFFCp+50))101 return 1;102 if (test__floatuntixf(0x0007FB72E4000001LL, 0x1.FEDCB90000004p+50))103 return 1;104 if (test__floatuntixf(0x0007FB72E4000000LL, 0x1.FEDCB9p+50))105 return 1;106 107 if (test__floatuntixf(0x023479FD0E092DC0LL, 0x1.1A3CFE870496Ep+57))108 return 1;109 if (test__floatuntixf(0x023479FD0E092DA1LL, 0x1.1A3CFE870496D08p+57L))110 return 1;111 if (test__floatuntixf(0x023479FD0E092DB0LL, 0x1.1A3CFE870496D8p+57L))112 return 1;113 if (test__floatuntixf(0x023479FD0E092DB8LL, 0x1.1A3CFE870496DCp+57L))114 return 1;115 if (test__floatuntixf(0x023479FD0E092DB6LL, 0x1.1A3CFE870496DBp+57L))116 return 1;117 if (test__floatuntixf(0x023479FD0E092DBFLL, 0x1.1A3CFE870496DF8p+57L))118 return 1;119 if (test__floatuntixf(0x023479FD0E092DC1LL, 0x1.1A3CFE870496E08p+57L))120 return 1;121 if (test__floatuntixf(0x023479FD0E092DC7LL, 0x1.1A3CFE870496E38p+57L))122 return 1;123 if (test__floatuntixf(0x023479FD0E092DC8LL, 0x1.1A3CFE870496E4p+57L))124 return 1;125 if (test__floatuntixf(0x023479FD0E092DCFLL, 0x1.1A3CFE870496E78p+57L))126 return 1;127 if (test__floatuntixf(0x023479FD0E092DD0LL, 0x1.1A3CFE870496E8p+57L))128 return 1;129 if (test__floatuntixf(0x023479FD0E092DD1LL, 0x1.1A3CFE870496E88p+57L))130 return 1;131 if (test__floatuntixf(0x023479FD0E092DD8LL, 0x1.1A3CFE870496ECp+57L))132 return 1;133 if (test__floatuntixf(0x023479FD0E092DDFLL, 0x1.1A3CFE870496EF8p+57L))134 return 1;135 if (test__floatuntixf(0x023479FD0E092DE0LL, 0x1.1A3CFE870496Fp+57))136 return 1;137 138 if (test__floatuntixf(make_ti(0x023479FD0E092DC0LL, 0), 0x1.1A3CFE870496Ep+121L))139 return 1;140 if (test__floatuntixf(make_ti(0x023479FD0E092DA1LL, 1), 0x1.1A3CFE870496D08p+121L))141 return 1;142 if (test__floatuntixf(make_ti(0x023479FD0E092DB0LL, 2), 0x1.1A3CFE870496D8p+121L))143 return 1;144 if (test__floatuntixf(make_ti(0x023479FD0E092DB8LL, 3), 0x1.1A3CFE870496DCp+121L))145 return 1;146 if (test__floatuntixf(make_ti(0x023479FD0E092DB6LL, 4), 0x1.1A3CFE870496DBp+121L))147 return 1;148 if (test__floatuntixf(make_ti(0x023479FD0E092DBFLL, 5), 0x1.1A3CFE870496DF8p+121L))149 return 1;150 if (test__floatuntixf(make_ti(0x023479FD0E092DC1LL, 6), 0x1.1A3CFE870496E08p+121L))151 return 1;152 if (test__floatuntixf(make_ti(0x023479FD0E092DC7LL, 7), 0x1.1A3CFE870496E38p+121L))153 return 1;154 if (test__floatuntixf(make_ti(0x023479FD0E092DC8LL, 8), 0x1.1A3CFE870496E4p+121L))155 return 1;156 if (test__floatuntixf(make_ti(0x023479FD0E092DCFLL, 9), 0x1.1A3CFE870496E78p+121L))157 return 1;158 if (test__floatuntixf(make_ti(0x023479FD0E092DD0LL, 0), 0x1.1A3CFE870496E8p+121L))159 return 1;160 if (test__floatuntixf(make_ti(0x023479FD0E092DD1LL, 11), 0x1.1A3CFE870496E88p+121L))161 return 1;162 if (test__floatuntixf(make_ti(0x023479FD0E092DD8LL, 12), 0x1.1A3CFE870496ECp+121L))163 return 1;164 if (test__floatuntixf(make_ti(0x023479FD0E092DDFLL, 13), 0x1.1A3CFE870496EF8p+121L))165 return 1;166 if (test__floatuntixf(make_ti(0x023479FD0E092DE0LL, 14), 0x1.1A3CFE870496Fp+121L))167 return 1;168 169 if (test__floatuntixf(make_ti(0, 0xFFFFFFFFFFFFFFFFLL), 0x1.FFFFFFFFFFFFFFFEp+63L))170 return 1;171 172 if (test__floatuntixf(make_ti(0xFFFFFFFFFFFFFFFFLL, 0x0000000000000000LL),173 0x1.FFFFFFFFFFFFFFFEp+127L))174 return 1;175 if (test__floatuntixf(make_ti(0xFFFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFFLL),176 0x1.0000000000000000p+128L))177 return 1;178 179 if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x3456100000000001LL),180 0x1.2345678901234562p+108L))181 return 1;182 if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x3456200000000000LL),183 0x1.2345678901234562p+108L))184 return 1;185 if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x34562FFFFFFFFFFFLL),186 0x1.2345678901234562p+108L))187 return 1;188 if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x3456300000000000LL),189 0x1.2345678901234564p+108L))190 return 1;191 if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x3456400000000000LL),192 0x1.2345678901234564p+108L))193 return 1;194 if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x34564FFFFFFFFFFFLL),195 0x1.2345678901234564p+108L))196 return 1;197 if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x3456500000000000LL),198 0x1.2345678901234564p+108L))199 return 1;200 if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x3456500000000001LL),201 0x1.2345678901234566p+108L))202 return 1;203 if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x34566FFFFFFFFFFFLL),204 0x1.2345678901234566p+108L))205 return 1;206#else207 printf("skipped\n");208#endif209 return 0;210}211