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Diffstat (limited to 'test/Unit/floatundixf_test.c')
-rw-r--r-- | test/Unit/floatundixf_test.c | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/test/Unit/floatundixf_test.c b/test/Unit/floatundixf_test.c new file mode 100644 index 000000000..112634827 --- /dev/null +++ b/test/Unit/floatundixf_test.c @@ -0,0 +1,144 @@ +//===-- floatundixf_test.c - Test __floatundixf ---------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file tests __floatundixf for the compiler_rt library. +// +//===----------------------------------------------------------------------===// + +#if !_ARCH_PPC + +#include "int_lib.h" +#include <stdio.h> + +// 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 +// du_int is a 64 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 __floatundixf(du_int a); + +int test__floatundixf(du_int a, long double expected) +{ + long double x = __floatundixf(a); + if (x != expected) + printf("error in __floatundixf(%llX) = %LA, expected %LA\n", + a, x, expected); + return x != expected; +} + +char assumption_1[sizeof(du_int) == 2*sizeof(si_int)] = {0}; +char assumption_2[sizeof(du_int)*CHAR_BIT == 64] = {0}; +char assumption_3[sizeof(long double)*CHAR_BIT == 128] = {0}; + +#endif + +int main() +{ +#if !_ARCH_PPC + if (test__floatundixf(0, 0.0)) + return 1; + + if (test__floatundixf(1, 1.0)) + return 1; + if (test__floatundixf(2, 2.0)) + return 1; + if (test__floatundixf(20, 20.0)) + return 1; + + if (test__floatundixf(0x7FFFFF8000000000ULL, 0x1.FFFFFEp+62)) + return 1; + if (test__floatundixf(0x7FFFFFFFFFFFF800ULL, 0x1.FFFFFFFFFFFFEp+62)) + return 1; + if (test__floatundixf(0x7FFFFF0000000000ULL, 0x1.FFFFFCp+62)) + return 1; + if (test__floatundixf(0x7FFFFFFFFFFFF000ULL, 0x1.FFFFFFFFFFFFCp+62)) + return 1; + if (test__floatundixf(0x7FFFFFFFFFFFFFFFULL, 0xF.FFFFFFFFFFFFFFEp+59L)) + return 1; + if (test__floatundixf(0xFFFFFFFFFFFFFFFEULL, 0xF.FFFFFFFFFFFFFFEp+60L)) + return 1; + if (test__floatundixf(0xFFFFFFFFFFFFFFFFULL, 0xF.FFFFFFFFFFFFFFFp+60L)) + return 1; + + if (test__floatundixf(0x8000008000000000ULL, 0x8.000008p+60)) + return 1; + if (test__floatundixf(0x8000000000000800ULL, 0x8.0000000000008p+60)) + return 1; + if (test__floatundixf(0x8000010000000000ULL, 0x8.00001p+60)) + return 1; + if (test__floatundixf(0x8000000000001000ULL, 0x8.000000000001p+60)) + return 1; + + if (test__floatundixf(0x8000000000000000ULL, 0x8p+60)) + return 1; + if (test__floatundixf(0x8000000000000001ULL, 0x8.000000000000001p+60L)) + return 1; + + if (test__floatundixf(0x0007FB72E8000000ULL, 0x1.FEDCBAp+50)) + return 1; + + if (test__floatundixf(0x0007FB72EA000000ULL, 0x1.FEDCBA8p+50)) + return 1; + if (test__floatundixf(0x0007FB72EB000000ULL, 0x1.FEDCBACp+50)) + return 1; + if (test__floatundixf(0x0007FB72EBFFFFFFULL, 0x1.FEDCBAFFFFFFCp+50)) + return 1; + if (test__floatundixf(0x0007FB72EC000000ULL, 0x1.FEDCBBp+50)) + return 1; + if (test__floatundixf(0x0007FB72E8000001ULL, 0x1.FEDCBA0000004p+50)) + return 1; + + if (test__floatundixf(0x0007FB72E6000000ULL, 0x1.FEDCB98p+50)) + return 1; + if (test__floatundixf(0x0007FB72E7000000ULL, 0x1.FEDCB9Cp+50)) + return 1; + if (test__floatundixf(0x0007FB72E7FFFFFFULL, 0x1.FEDCB9FFFFFFCp+50)) + return 1; + if (test__floatundixf(0x0007FB72E4000001ULL, 0x1.FEDCB90000004p+50)) + return 1; + if (test__floatundixf(0x0007FB72E4000000ULL, 0x1.FEDCB9p+50)) + return 1; + + if (test__floatundixf(0x023479FD0E092DC0ULL, 0x1.1A3CFE870496Ep+57)) + return 1; + if (test__floatundixf(0x023479FD0E092DA1ULL, 0x8.D1E7F43824B684p+54L)) + return 1; + if (test__floatundixf(0x023479FD0E092DB0ULL, 0x8.D1E7f43824B6Cp+54L)) + return 1; + if (test__floatundixf(0x023479FD0E092DB8ULL, 0x8.D1E7F43824B6Ep+54L)) + return 1; + if (test__floatundixf(0x023479FD0E092DB6ULL, 0x8.D1E7F43824B6D8p+54L)) + return 1; + if (test__floatundixf(0x023479FD0E092DBFULL, 0x8.D1E7F43824B6FCp+54L)) + return 1; + if (test__floatundixf(0x023479FD0E092DC1ULL, 0x8.D1E7F43824B704p+54L)) + return 1; + if (test__floatundixf(0x023479FD0E092DC7ULL, 0x8.D1E7F43824B71Cp+54L)) + return 1; + if (test__floatundixf(0x023479FD0E092DC8ULL, 0x8.D1E7F43824B72p+54L)) + return 1; + if (test__floatundixf(0x023479FD0E092DCFULL, 0x8.D1E7F43824B73Cp+54L)) + return 1; + if (test__floatundixf(0x023479FD0E092DD0ULL, 0x8.D1E7F43824B74p+54L)) + return 1; + if (test__floatundixf(0x023479FD0E092DD1ULL, 0x8.D1E7F43824B744p+54L)) + return 1; + if (test__floatundixf(0x023479FD0E092DD8ULL, 0x8.D1E7F43824B76p+54L)) + return 1; + if (test__floatundixf(0x023479FD0E092DDFULL, 0x8.D1E7F43824B77Cp+54L)) + return 1; + if (test__floatundixf(0x023479FD0E092DE0ULL, 0x1.1A3CFE870496Fp+57)) + return 1; + +#endif + return 0; +} |