| // RUN: %clang_builtins %s %librt -o %t && %run %t |
| // REQUIRES: librt_has_floatuntixf |
| // REQUIRES: x86-target-arch |
| |
| #include "int_lib.h" |
| #include <float.h> |
| #include <stdio.h> |
| |
| #if defined(CRT_HAS_128BIT) && HAS_80_BIT_LONG_DOUBLE |
| |
| // Returns: convert a to a long double, rounding toward even. |
| |
| // Assumption: long double is a IEEE 80 bit floating point type padded to 128 bits |
| // tu_int is a 128 bit integral type |
| |
| // gggg gggg gggg gggg gggg gggg gggg gggg | gggg gggg gggg gggg seee eeee eeee eeee | |
| // 1mmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm |
| |
| COMPILER_RT_ABI long double __floatuntixf(tu_int a); |
| |
| int test__floatuntixf(tu_int a, long double expected) |
| { |
| long double x = __floatuntixf(a); |
| if (x != expected) |
| { |
| utwords at; |
| at.all = a; |
| printf("error in __floatuntixf(0x%.16llX%.16llX) = %LA, expected %LA\n", |
| at.s.high, at.s.low, x, expected); |
| } |
| return x != expected; |
| } |
| |
| COMPILE_TIME_ASSERT(sizeof(tu_int) == 2*sizeof(du_int)); |
| COMPILE_TIME_ASSERT(sizeof(tu_int)*CHAR_BIT == 128); |
| COMPILE_TIME_ASSERT(sizeof(long double)*CHAR_BIT == 128); |
| |
| #endif |
| |
| int main() |
| { |
| #if defined(CRT_HAS_128BIT) && HAS_80_BIT_LONG_DOUBLE |
| if (test__floatuntixf(0, 0.0)) |
| return 1; |
| |
| if (test__floatuntixf(1, 1.0)) |
| return 1; |
| if (test__floatuntixf(2, 2.0)) |
| return 1; |
| if (test__floatuntixf(20, 20.0)) |
| return 1; |
| |
| if (test__floatuntixf(0x7FFFFF8000000000ULL, 0x1.FFFFFEp+62)) |
| return 1; |
| if (test__floatuntixf(0x7FFFFFFFFFFFF800ULL, 0x1.FFFFFFFFFFFFEp+62)) |
| return 1; |
| if (test__floatuntixf(0x7FFFFF0000000000ULL, 0x1.FFFFFCp+62)) |
| return 1; |
| if (test__floatuntixf(0x7FFFFFFFFFFFF000ULL, 0x1.FFFFFFFFFFFFCp+62)) |
| return 1; |
| if (test__floatuntixf(0x7FFFFFFFFFFFFFFFULL, 0xF.FFFFFFFFFFFFFFEp+59L)) |
| return 1; |
| if (test__floatuntixf(0xFFFFFFFFFFFFFFFEULL, 0xF.FFFFFFFFFFFFFFEp+60L)) |
| return 1; |
| if (test__floatuntixf(0xFFFFFFFFFFFFFFFFULL, 0xF.FFFFFFFFFFFFFFFp+60L)) |
| return 1; |
| |
| if (test__floatuntixf(0x8000008000000000ULL, 0x8.000008p+60)) |
| return 1; |
| if (test__floatuntixf(0x8000000000000800ULL, 0x8.0000000000008p+60)) |
| return 1; |
| if (test__floatuntixf(0x8000010000000000ULL, 0x8.00001p+60)) |
| return 1; |
| if (test__floatuntixf(0x8000000000001000ULL, 0x8.000000000001p+60)) |
| return 1; |
| |
| if (test__floatuntixf(0x8000000000000000ULL, 0x8p+60)) |
| return 1; |
| if (test__floatuntixf(0x8000000000000001ULL, 0x8.000000000000001p+60L)) |
| return 1; |
| |
| if (test__floatuntixf(0x0007FB72E8000000LL, 0x1.FEDCBAp+50)) |
| return 1; |
| |
| if (test__floatuntixf(0x0007FB72EA000000LL, 0x1.FEDCBA8p+50)) |
| return 1; |
| if (test__floatuntixf(0x0007FB72EB000000LL, 0x1.FEDCBACp+50)) |
| return 1; |
| if (test__floatuntixf(0x0007FB72EBFFFFFFLL, 0x1.FEDCBAFFFFFFCp+50)) |
| return 1; |
| if (test__floatuntixf(0x0007FB72EC000000LL, 0x1.FEDCBBp+50)) |
| return 1; |
| if (test__floatuntixf(0x0007FB72E8000001LL, 0x1.FEDCBA0000004p+50)) |
| return 1; |
| |
| if (test__floatuntixf(0x0007FB72E6000000LL, 0x1.FEDCB98p+50)) |
| return 1; |
| if (test__floatuntixf(0x0007FB72E7000000LL, 0x1.FEDCB9Cp+50)) |
| return 1; |
| if (test__floatuntixf(0x0007FB72E7FFFFFFLL, 0x1.FEDCB9FFFFFFCp+50)) |
| return 1; |
| if (test__floatuntixf(0x0007FB72E4000001LL, 0x1.FEDCB90000004p+50)) |
| return 1; |
| if (test__floatuntixf(0x0007FB72E4000000LL, 0x1.FEDCB9p+50)) |
| return 1; |
| |
| if (test__floatuntixf(0x023479FD0E092DC0LL, 0x1.1A3CFE870496Ep+57)) |
| return 1; |
| if (test__floatuntixf(0x023479FD0E092DA1LL, 0x1.1A3CFE870496D08p+57L)) |
| return 1; |
| if (test__floatuntixf(0x023479FD0E092DB0LL, 0x1.1A3CFE870496D8p+57L)) |
| return 1; |
| if (test__floatuntixf(0x023479FD0E092DB8LL, 0x1.1A3CFE870496DCp+57L)) |
| return 1; |
| if (test__floatuntixf(0x023479FD0E092DB6LL, 0x1.1A3CFE870496DBp+57L)) |
| return 1; |
| if (test__floatuntixf(0x023479FD0E092DBFLL, 0x1.1A3CFE870496DF8p+57L)) |
| return 1; |
| if (test__floatuntixf(0x023479FD0E092DC1LL, 0x1.1A3CFE870496E08p+57L)) |
| return 1; |
| if (test__floatuntixf(0x023479FD0E092DC7LL, 0x1.1A3CFE870496E38p+57L)) |
| return 1; |
| if (test__floatuntixf(0x023479FD0E092DC8LL, 0x1.1A3CFE870496E4p+57L)) |
| return 1; |
| if (test__floatuntixf(0x023479FD0E092DCFLL, 0x1.1A3CFE870496E78p+57L)) |
| return 1; |
| if (test__floatuntixf(0x023479FD0E092DD0LL, 0x1.1A3CFE870496E8p+57L)) |
| return 1; |
| if (test__floatuntixf(0x023479FD0E092DD1LL, 0x1.1A3CFE870496E88p+57L)) |
| return 1; |
| if (test__floatuntixf(0x023479FD0E092DD8LL, 0x1.1A3CFE870496ECp+57L)) |
| return 1; |
| if (test__floatuntixf(0x023479FD0E092DDFLL, 0x1.1A3CFE870496EF8p+57L)) |
| return 1; |
| if (test__floatuntixf(0x023479FD0E092DE0LL, 0x1.1A3CFE870496Fp+57)) |
| return 1; |
| |
| if (test__floatuntixf(make_ti(0x023479FD0E092DC0LL, 0), 0x1.1A3CFE870496Ep+121L)) |
| return 1; |
| if (test__floatuntixf(make_ti(0x023479FD0E092DA1LL, 1), 0x1.1A3CFE870496D08p+121L)) |
| return 1; |
| if (test__floatuntixf(make_ti(0x023479FD0E092DB0LL, 2), 0x1.1A3CFE870496D8p+121L)) |
| return 1; |
| if (test__floatuntixf(make_ti(0x023479FD0E092DB8LL, 3), 0x1.1A3CFE870496DCp+121L)) |
| return 1; |
| if (test__floatuntixf(make_ti(0x023479FD0E092DB6LL, 4), 0x1.1A3CFE870496DBp+121L)) |
| return 1; |
| if (test__floatuntixf(make_ti(0x023479FD0E092DBFLL, 5), 0x1.1A3CFE870496DF8p+121L)) |
| return 1; |
| if (test__floatuntixf(make_ti(0x023479FD0E092DC1LL, 6), 0x1.1A3CFE870496E08p+121L)) |
| return 1; |
| if (test__floatuntixf(make_ti(0x023479FD0E092DC7LL, 7), 0x1.1A3CFE870496E38p+121L)) |
| return 1; |
| if (test__floatuntixf(make_ti(0x023479FD0E092DC8LL, 8), 0x1.1A3CFE870496E4p+121L)) |
| return 1; |
| if (test__floatuntixf(make_ti(0x023479FD0E092DCFLL, 9), 0x1.1A3CFE870496E78p+121L)) |
| return 1; |
| if (test__floatuntixf(make_ti(0x023479FD0E092DD0LL, 0), 0x1.1A3CFE870496E8p+121L)) |
| return 1; |
| if (test__floatuntixf(make_ti(0x023479FD0E092DD1LL, 11), 0x1.1A3CFE870496E88p+121L)) |
| return 1; |
| if (test__floatuntixf(make_ti(0x023479FD0E092DD8LL, 12), 0x1.1A3CFE870496ECp+121L)) |
| return 1; |
| if (test__floatuntixf(make_ti(0x023479FD0E092DDFLL, 13), 0x1.1A3CFE870496EF8p+121L)) |
| return 1; |
| if (test__floatuntixf(make_ti(0x023479FD0E092DE0LL, 14), 0x1.1A3CFE870496Fp+121L)) |
| return 1; |
| |
| if (test__floatuntixf(make_ti(0, 0xFFFFFFFFFFFFFFFFLL), 0x1.FFFFFFFFFFFFFFFEp+63L)) |
| return 1; |
| |
| if (test__floatuntixf(make_ti(0xFFFFFFFFFFFFFFFFLL, 0x0000000000000000LL), |
| 0x1.FFFFFFFFFFFFFFFEp+127L)) |
| return 1; |
| if (test__floatuntixf(make_ti(0xFFFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFFLL), |
| 0x1.0000000000000000p+128L)) |
| return 1; |
| |
| if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x3456100000000001LL), |
| 0x1.2345678901234562p+108L)) |
| return 1; |
| if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x3456200000000000LL), |
| 0x1.2345678901234562p+108L)) |
| return 1; |
| if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x34562FFFFFFFFFFFLL), |
| 0x1.2345678901234562p+108L)) |
| return 1; |
| if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x3456300000000000LL), |
| 0x1.2345678901234564p+108L)) |
| return 1; |
| if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x3456400000000000LL), |
| 0x1.2345678901234564p+108L)) |
| return 1; |
| if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x34564FFFFFFFFFFFLL), |
| 0x1.2345678901234564p+108L)) |
| return 1; |
| if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x3456500000000000LL), |
| 0x1.2345678901234564p+108L)) |
| return 1; |
| if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x3456500000000001LL), |
| 0x1.2345678901234566p+108L)) |
| return 1; |
| if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x34566FFFFFFFFFFFLL), |
| 0x1.2345678901234566p+108L)) |
| return 1; |
| #else |
| printf("skipped\n"); |
| #endif |
| return 0; |
| } |
