diff options
Diffstat (limited to 'test/builtins/Unit/floattixf_test.c')
| -rw-r--r-- | test/builtins/Unit/floattixf_test.c | 212 |
1 files changed, 212 insertions, 0 deletions
diff --git a/test/builtins/Unit/floattixf_test.c b/test/builtins/Unit/floattixf_test.c new file mode 100644 index 000000000000..ce3566867a47 --- /dev/null +++ b/test/builtins/Unit/floattixf_test.c @@ -0,0 +1,212 @@ +//===-- floattixf.c - Test __floattixf ------------------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is dual licensed under the MIT and the University of Illinois Open +// Source Licenses. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file tests __floattixf for the compiler_rt library. +// +//===----------------------------------------------------------------------===// + +#include "int_lib.h" +#include <float.h> +#include <stdio.h> + +#ifdef CRT_HAS_128BIT + +// 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 +// ti_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 + +long double __floattixf(ti_int a); + +int test__floattixf(ti_int a, long double expected) +{ + long double x = __floattixf(a); + if (x != expected) + { + twords at; + at.all = a; + printf("error in __floattixf(0x%.16llX%.16llX) = %LA, expected %LA\n", + at.s.high, at.s.low, x, expected); + } + return x != expected; +} + +char assumption_1[sizeof(ti_int) == 2*sizeof(di_int)] = {0}; +char assumption_2[sizeof(ti_int)*CHAR_BIT == 128] = {0}; +char assumption_3[sizeof(long double)*CHAR_BIT == 128] = {0}; + +#endif + +int main() +{ +#ifdef CRT_HAS_128BIT + if (test__floattixf(0, 0.0)) + return 1; + + if (test__floattixf(1, 1.0)) + return 1; + if (test__floattixf(2, 2.0)) + return 1; + if (test__floattixf(20, 20.0)) + return 1; + if (test__floattixf(-1, -1.0)) + return 1; + if (test__floattixf(-2, -2.0)) + return 1; + if (test__floattixf(-20, -20.0)) + return 1; + + if (test__floattixf(0x7FFFFF8000000000LL, 0x1.FFFFFEp+62)) + return 1; + if (test__floattixf(0x7FFFFFFFFFFFF800LL, 0x1.FFFFFFFFFFFFEp+62)) + return 1; + if (test__floattixf(0x7FFFFF0000000000LL, 0x1.FFFFFCp+62)) + return 1; + if (test__floattixf(0x7FFFFFFFFFFFF000LL, 0x1.FFFFFFFFFFFFCp+62)) + return 1; + + if (test__floattixf(make_ti(0x8000008000000000LL, 0), -0x1.FFFFFEp+126)) + return 1; + if (test__floattixf(make_ti(0x8000000000000800LL, 0), -0x1.FFFFFFFFFFFFEp+126)) + return 1; + if (test__floattixf(make_ti(0x8000010000000000LL, 0), -0x1.FFFFFCp+126)) + return 1; + if (test__floattixf(make_ti(0x8000000000001000LL, 0), -0x1.FFFFFFFFFFFFCp+126)) + return 1; + + if (test__floattixf(make_ti(0x8000000000000000LL, 0), -0x1.000000p+127)) + return 1; + if (test__floattixf(make_ti(0x8000000000000001LL, 0), -0x1.FFFFFFFFFFFFFFFCp+126L)) + return 1; + + if (test__floattixf(0x0007FB72E8000000LL, 0x1.FEDCBAp+50)) + return 1; + + if (test__floattixf(0x0007FB72EA000000LL, 0x1.FEDCBA8p+50)) + return 1; + if (test__floattixf(0x0007FB72EB000000LL, 0x1.FEDCBACp+50)) + return 1; + if (test__floattixf(0x0007FB72EBFFFFFFLL, 0x1.FEDCBAFFFFFFCp+50)) + return 1; + if (test__floattixf(0x0007FB72EC000000LL, 0x1.FEDCBBp+50)) + return 1; + if (test__floattixf(0x0007FB72E8000001LL, 0x1.FEDCBA0000004p+50)) + return 1; + + if (test__floattixf(0x0007FB72E6000000LL, 0x1.FEDCB98p+50)) + return 1; + if (test__floattixf(0x0007FB72E7000000LL, 0x1.FEDCB9Cp+50)) + return 1; + if (test__floattixf(0x0007FB72E7FFFFFFLL, 0x1.FEDCB9FFFFFFCp+50)) + return 1; + if (test__floattixf(0x0007FB72E4000001LL, 0x1.FEDCB90000004p+50)) + return 1; + if (test__floattixf(0x0007FB72E4000000LL, 0x1.FEDCB9p+50)) + return 1; + + if (test__floattixf(0x023479FD0E092DC0LL, 0x1.1A3CFE870496Ep+57)) + return 1; + if (test__floattixf(0x023479FD0E092DA1LL, 0x1.1A3CFE870496D08p+57L)) + return 1; + if (test__floattixf(0x023479FD0E092DB0LL, 0x1.1A3CFE870496D8p+57L)) + return 1; + if (test__floattixf(0x023479FD0E092DB8LL, 0x1.1A3CFE870496DCp+57L)) + return 1; + if (test__floattixf(0x023479FD0E092DB6LL, 0x1.1A3CFE870496DBp+57L)) + return 1; + if (test__floattixf(0x023479FD0E092DBFLL, 0x1.1A3CFE870496DF8p+57L)) + return 1; + if (test__floattixf(0x023479FD0E092DC1LL, 0x1.1A3CFE870496E08p+57L)) + return 1; + if (test__floattixf(0x023479FD0E092DC7LL, 0x1.1A3CFE870496E38p+57L)) + return 1; + if (test__floattixf(0x023479FD0E092DC8LL, 0x1.1A3CFE870496E4p+57L)) + return 1; + if (test__floattixf(0x023479FD0E092DCFLL, 0x1.1A3CFE870496E78p+57L)) + return 1; + if (test__floattixf(0x023479FD0E092DD0LL, 0x1.1A3CFE870496E8p+57L)) + return 1; + if (test__floattixf(0x023479FD0E092DD1LL, 0x1.1A3CFE870496E88p+57L)) + return 1; + if (test__floattixf(0x023479FD0E092DD8LL, 0x1.1A3CFE870496ECp+57L)) + return 1; + if (test__floattixf(0x023479FD0E092DDFLL, 0x1.1A3CFE870496EF8p+57L)) + return 1; + if (test__floattixf(0x023479FD0E092DE0LL, 0x1.1A3CFE870496Fp+57)) + return 1; + + if (test__floattixf(make_ti(0x023479FD0E092DC0LL, 0), 0x1.1A3CFE870496Ep+121L)) + return 1; + if (test__floattixf(make_ti(0x023479FD0E092DA1LL, 1), 0x1.1A3CFE870496D08p+121L)) + return 1; + if (test__floattixf(make_ti(0x023479FD0E092DB0LL, 2), 0x1.1A3CFE870496D8p+121L)) + return 1; + if (test__floattixf(make_ti(0x023479FD0E092DB8LL, 3), 0x1.1A3CFE870496DCp+121L)) + return 1; + if (test__floattixf(make_ti(0x023479FD0E092DB6LL, 4), 0x1.1A3CFE870496DBp+121L)) + return 1; + if (test__floattixf(make_ti(0x023479FD0E092DBFLL, 5), 0x1.1A3CFE870496DF8p+121L)) + return 1; + if (test__floattixf(make_ti(0x023479FD0E092DC1LL, 6), 0x1.1A3CFE870496E08p+121L)) + return 1; + if (test__floattixf(make_ti(0x023479FD0E092DC7LL, 7), 0x1.1A3CFE870496E38p+121L)) + return 1; + if (test__floattixf(make_ti(0x023479FD0E092DC8LL, 8), 0x1.1A3CFE870496E4p+121L)) + return 1; + if (test__floattixf(make_ti(0x023479FD0E092DCFLL, 9), 0x1.1A3CFE870496E78p+121L)) + return 1; + if (test__floattixf(make_ti(0x023479FD0E092DD0LL, 0), 0x1.1A3CFE870496E8p+121L)) + return 1; + if (test__floattixf(make_ti(0x023479FD0E092DD1LL, 11), 0x1.1A3CFE870496E88p+121L)) + return 1; + if (test__floattixf(make_ti(0x023479FD0E092DD8LL, 12), 0x1.1A3CFE870496ECp+121L)) + return 1; + if (test__floattixf(make_ti(0x023479FD0E092DDFLL, 13), 0x1.1A3CFE870496EF8p+121L)) + return 1; + if (test__floattixf(make_ti(0x023479FD0E092DE0LL, 14), 0x1.1A3CFE870496Fp+121L)) + return 1; + + if (test__floattixf(make_ti(0, 0xFFFFFFFFFFFFFFFFLL), 0x1.FFFFFFFFFFFFFFFEp+63L)) + return 1; + + if (test__floattixf(make_ti(0x0000123456789012LL, 0x3456100000000001LL), + 0x1.2345678901234562p+108L)) + return 1; + if (test__floattixf(make_ti(0x0000123456789012LL, 0x3456200000000000LL), + 0x1.2345678901234562p+108L)) + return 1; + if (test__floattixf(make_ti(0x0000123456789012LL, 0x34562FFFFFFFFFFFLL), + 0x1.2345678901234562p+108L)) + return 1; + if (test__floattixf(make_ti(0x0000123456789012LL, 0x3456300000000000LL), + 0x1.2345678901234564p+108L)) + return 1; + if (test__floattixf(make_ti(0x0000123456789012LL, 0x3456400000000000LL), + 0x1.2345678901234564p+108L)) + return 1; + if (test__floattixf(make_ti(0x0000123456789012LL, 0x34564FFFFFFFFFFFLL), + 0x1.2345678901234564p+108L)) + return 1; + if (test__floattixf(make_ti(0x0000123456789012LL, 0x3456500000000000LL), + 0x1.2345678901234564p+108L)) + return 1; + if (test__floattixf(make_ti(0x0000123456789012LL, 0x3456500000000001LL), + 0x1.2345678901234566p+108L)) + return 1; + if (test__floattixf(make_ti(0x0000123456789012LL, 0x34566FFFFFFFFFFFLL), + 0x1.2345678901234566p+108L)) + return 1; +#else + printf("skipped\n"); +#endif + return 0; +} |