166 lines · c
1// RUN: %clang_builtins %s %librt -o %t && %run %t2// REQUIRES: librt_has_floatuntidf3// REQUIRES: int1284 5#include "int_lib.h"6#include <float.h>7#include <stdio.h>8 9#ifdef CRT_HAS_128BIT10 11// Returns: convert a to a double, rounding toward even.12 13// Assumption: double is a IEEE 64 bit floating point type 14// tu_int is a 64 bit integral type15 16// seee eeee eeee mmmm mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm17 18COMPILER_RT_ABI double __floatuntidf(tu_int a);19 20int test__floatuntidf(tu_int a, double expected)21{22 double x = __floatuntidf(a);23 if (x != expected)24 {25 utwords at;26 at.all = a;27 printf("error in __floatuntidf(0x%.16llX%.16llX) = %a, expected %a\n",28 at.s.high, at.s.low, x, expected);29 }30 return x != expected;31}32 33char assumption_1[sizeof(ti_int) == 2*sizeof(di_int)] = {0};34char assumption_2[sizeof(ti_int)*CHAR_BIT == 128] = {0};35char assumption_3[sizeof(double)*CHAR_BIT == 64] = {0};36 37#endif38 39int main()40{41#ifdef CRT_HAS_128BIT42 if (test__floatuntidf(0, 0.0))43 return 1;44 45 if (test__floatuntidf(1, 1.0))46 return 1;47 if (test__floatuntidf(2, 2.0))48 return 1;49 if (test__floatuntidf(20, 20.0))50 return 1;51 52 if (test__floatuntidf(0x7FFFFF8000000000LL, 0x1.FFFFFEp+62))53 return 1;54 if (test__floatuntidf(0x7FFFFFFFFFFFF800LL, 0x1.FFFFFFFFFFFFEp+62))55 return 1;56 if (test__floatuntidf(0x7FFFFF0000000000LL, 0x1.FFFFFCp+62))57 return 1;58 if (test__floatuntidf(0x7FFFFFFFFFFFF000LL, 0x1.FFFFFFFFFFFFCp+62))59 return 1;60 61 if (test__floatuntidf(make_ti(0x8000008000000000LL, 0), 0x1.000001p+127))62 return 1;63 if (test__floatuntidf(make_ti(0x8000000000000800LL, 0), 0x1.0000000000001p+127))64 return 1;65 if (test__floatuntidf(make_ti(0x8000010000000000LL, 0), 0x1.000002p+127))66 return 1;67 if (test__floatuntidf(make_ti(0x8000000000001000LL, 0), 0x1.0000000000002p+127))68 return 1;69 70 if (test__floatuntidf(make_ti(0x8000000000000000LL, 0), 0x1.000000p+127))71 return 1;72 if (test__floatuntidf(make_ti(0x8000000000000001LL, 0), 0x1.0000000000000002p+127))73 return 1;74 75 if (test__floatuntidf(0x0007FB72E8000000LL, 0x1.FEDCBAp+50))76 return 1;77 78 if (test__floatuntidf(0x0007FB72EA000000LL, 0x1.FEDCBA8p+50))79 return 1;80 if (test__floatuntidf(0x0007FB72EB000000LL, 0x1.FEDCBACp+50))81 return 1;82 if (test__floatuntidf(0x0007FB72EBFFFFFFLL, 0x1.FEDCBAFFFFFFCp+50))83 return 1;84 if (test__floatuntidf(0x0007FB72EC000000LL, 0x1.FEDCBBp+50))85 return 1;86 if (test__floatuntidf(0x0007FB72E8000001LL, 0x1.FEDCBA0000004p+50))87 return 1;88 89 if (test__floatuntidf(0x0007FB72E6000000LL, 0x1.FEDCB98p+50))90 return 1;91 if (test__floatuntidf(0x0007FB72E7000000LL, 0x1.FEDCB9Cp+50))92 return 1;93 if (test__floatuntidf(0x0007FB72E7FFFFFFLL, 0x1.FEDCB9FFFFFFCp+50))94 return 1;95 if (test__floatuntidf(0x0007FB72E4000001LL, 0x1.FEDCB90000004p+50))96 return 1;97 if (test__floatuntidf(0x0007FB72E4000000LL, 0x1.FEDCB9p+50))98 return 1;99 100 if (test__floatuntidf(0x023479FD0E092DC0LL, 0x1.1A3CFE870496Ep+57))101 return 1;102 if (test__floatuntidf(0x023479FD0E092DA1LL, 0x1.1A3CFE870496Dp+57))103 return 1;104 if (test__floatuntidf(0x023479FD0E092DB0LL, 0x1.1A3CFE870496Ep+57))105 return 1;106 if (test__floatuntidf(0x023479FD0E092DB8LL, 0x1.1A3CFE870496Ep+57))107 return 1;108 if (test__floatuntidf(0x023479FD0E092DB6LL, 0x1.1A3CFE870496Ep+57))109 return 1;110 if (test__floatuntidf(0x023479FD0E092DBFLL, 0x1.1A3CFE870496Ep+57))111 return 1;112 if (test__floatuntidf(0x023479FD0E092DC1LL, 0x1.1A3CFE870496Ep+57))113 return 1;114 if (test__floatuntidf(0x023479FD0E092DC7LL, 0x1.1A3CFE870496Ep+57))115 return 1;116 if (test__floatuntidf(0x023479FD0E092DC8LL, 0x1.1A3CFE870496Ep+57))117 return 1;118 if (test__floatuntidf(0x023479FD0E092DCFLL, 0x1.1A3CFE870496Ep+57))119 return 1;120 if (test__floatuntidf(0x023479FD0E092DD0LL, 0x1.1A3CFE870496Ep+57))121 return 1;122 if (test__floatuntidf(0x023479FD0E092DD1LL, 0x1.1A3CFE870496Fp+57))123 return 1;124 if (test__floatuntidf(0x023479FD0E092DD8LL, 0x1.1A3CFE870496Fp+57))125 return 1;126 if (test__floatuntidf(0x023479FD0E092DDFLL, 0x1.1A3CFE870496Fp+57))127 return 1;128 if (test__floatuntidf(0x023479FD0E092DE0LL, 0x1.1A3CFE870496Fp+57))129 return 1;130 131 if (test__floatuntidf(make_ti(0x023479FD0E092DC0LL, 0), 0x1.1A3CFE870496Ep+121))132 return 1;133 if (test__floatuntidf(make_ti(0x023479FD0E092DA1LL, 1), 0x1.1A3CFE870496Dp+121))134 return 1;135 if (test__floatuntidf(make_ti(0x023479FD0E092DB0LL, 2), 0x1.1A3CFE870496Ep+121))136 return 1;137 if (test__floatuntidf(make_ti(0x023479FD0E092DB8LL, 3), 0x1.1A3CFE870496Ep+121))138 return 1;139 if (test__floatuntidf(make_ti(0x023479FD0E092DB6LL, 4), 0x1.1A3CFE870496Ep+121))140 return 1;141 if (test__floatuntidf(make_ti(0x023479FD0E092DBFLL, 5), 0x1.1A3CFE870496Ep+121))142 return 1;143 if (test__floatuntidf(make_ti(0x023479FD0E092DC1LL, 6), 0x1.1A3CFE870496Ep+121))144 return 1;145 if (test__floatuntidf(make_ti(0x023479FD0E092DC7LL, 7), 0x1.1A3CFE870496Ep+121))146 return 1;147 if (test__floatuntidf(make_ti(0x023479FD0E092DC8LL, 8), 0x1.1A3CFE870496Ep+121))148 return 1;149 if (test__floatuntidf(make_ti(0x023479FD0E092DCFLL, 9), 0x1.1A3CFE870496Ep+121))150 return 1;151 if (test__floatuntidf(make_ti(0x023479FD0E092DD0LL, 0), 0x1.1A3CFE870496Ep+121))152 return 1;153 if (test__floatuntidf(make_ti(0x023479FD0E092DD1LL, 11), 0x1.1A3CFE870496Fp+121))154 return 1;155 if (test__floatuntidf(make_ti(0x023479FD0E092DD8LL, 12), 0x1.1A3CFE870496Fp+121))156 return 1;157 if (test__floatuntidf(make_ti(0x023479FD0E092DDFLL, 13), 0x1.1A3CFE870496Fp+121))158 return 1;159 if (test__floatuntidf(make_ti(0x023479FD0E092DE0LL, 14), 0x1.1A3CFE870496Fp+121))160 return 1;161#else162 printf("skipped\n");163#endif164 return 0;165}166