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Diffstat (limited to 'test/Unit/floatuntisf_test.c')
| -rw-r--r-- | test/Unit/floatuntisf_test.c | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/test/Unit/floatuntisf_test.c b/test/Unit/floatuntisf_test.c new file mode 100644 index 000000000..bd458c133 --- /dev/null +++ b/test/Unit/floatuntisf_test.c @@ -0,0 +1,163 @@ +//===-- floatuntisf.c - Test __floatuntisf --------------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file tests __floatuntisf for the compiler_rt library. +// +//===----------------------------------------------------------------------===// + +#if __x86_64 + +#include "int_lib.h" +#include <float.h> +#include <stdio.h> + +// Returns: convert a to a float, rounding toward even. + +// Assumption: float is a IEEE 32 bit floating point type +// tu_int is a 128 bit integral type + +// seee eeee emmm mmmm mmmm mmmm mmmm mmmm + +float __floatuntisf(tu_int a); + +int test__floatuntisf(tu_int a, float expected) +{ + float x = __floatuntisf(a); + if (x != expected) + { + utwords at; + at.all = a; + printf("error in __floatuntisf(0x%.16llX%.16llX) = %a, expected %a\n", + at.high, at.low, x, expected); + } + return x != expected; +} + +char assumption_1[sizeof(tu_int) == 2*sizeof(du_int)] = {0}; +char assumption_2[sizeof(tu_int)*CHAR_BIT == 128] = {0}; +char assumption_3[sizeof(float)*CHAR_BIT == 32] = {0}; + +#endif + +int main() +{ +#if __x86_64 + if (test__floatuntisf(0, 0.0F)) + return 1; + + if (test__floatuntisf(1, 1.0F)) + return 1; + if (test__floatuntisf(2, 2.0F)) + return 1; + if (test__floatuntisf(20, 20.0F)) + return 1; + + if (test__floatuntisf(0x7FFFFF8000000000LL, 0x1.FFFFFEp+62F)) + return 1; + if (test__floatuntisf(0x7FFFFF0000000000LL, 0x1.FFFFFCp+62F)) + return 1; + + if (test__floatuntisf(make_ti(0x8000008000000000LL, 0), 0x1.000001p+127F)) + return 1; + if (test__floatuntisf(make_ti(0x8000000000000800LL, 0), 0x1.0p+127F)) + return 1; + if (test__floatuntisf(make_ti(0x8000010000000000LL, 0), 0x1.000002p+127F)) + return 1; + + if (test__floatuntisf(make_ti(0x8000000000000000LL, 0), 0x1.000000p+127F)) + return 1; + + if (test__floatuntisf(0x0007FB72E8000000LL, 0x1.FEDCBAp+50F)) + return 1; + + if (test__floatuntisf(0x0007FB72EA000000LL, 0x1.FEDCBA8p+50F)) + return 1; + if (test__floatuntisf(0x0007FB72EB000000LL, 0x1.FEDCBACp+50F)) + return 1; + + if (test__floatuntisf(0x0007FB72EC000000LL, 0x1.FEDCBBp+50F)) + return 1; + + if (test__floatuntisf(0x0007FB72E6000000LL, 0x1.FEDCB98p+50F)) + return 1; + if (test__floatuntisf(0x0007FB72E7000000LL, 0x1.FEDCB9Cp+50F)) + return 1; + if (test__floatuntisf(0x0007FB72E4000000LL, 0x1.FEDCB9p+50F)) + return 1; + + if (test__floatuntisf(0xFFFFFFFFFFFFFFFELL, 0x1p+64F)) + return 1; + if (test__floatuntisf(0xFFFFFFFFFFFFFFFFLL, 0x1p+64F)) + return 1; + + if (test__floatuntisf(0x0007FB72E8000000LL, 0x1.FEDCBAp+50F)) + return 1; + + if (test__floatuntisf(0x0007FB72EA000000LL, 0x1.FEDCBAp+50F)) + return 1; + if (test__floatuntisf(0x0007FB72EB000000LL, 0x1.FEDCBAp+50F)) + return 1; + if (test__floatuntisf(0x0007FB72EBFFFFFFLL, 0x1.FEDCBAp+50F)) + return 1; + if (test__floatuntisf(0x0007FB72EC000000LL, 0x1.FEDCBCp+50F)) + return 1; + if (test__floatuntisf(0x0007FB72E8000001LL, 0x1.FEDCBAp+50F)) + return 1; + + if (test__floatuntisf(0x0007FB72E6000000LL, 0x1.FEDCBAp+50F)) + return 1; + if (test__floatuntisf(0x0007FB72E7000000LL, 0x1.FEDCBAp+50F)) + return 1; + if (test__floatuntisf(0x0007FB72E7FFFFFFLL, 0x1.FEDCBAp+50F)) + return 1; + if (test__floatuntisf(0x0007FB72E4000001LL, 0x1.FEDCBAp+50F)) + return 1; + if (test__floatuntisf(0x0007FB72E4000000LL, 0x1.FEDCB8p+50F)) + return 1; + + if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCB90000000000001LL), + 0x1.FEDCBAp+76F)) + return 1; + if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCBA0000000000000LL), + 0x1.FEDCBAp+76F)) + return 1; + if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCBAFFFFFFFFFFFFFLL), + 0x1.FEDCBAp+76F)) + return 1; + if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCBB0000000000000LL), + 0x1.FEDCBCp+76F)) + return 1; + if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCBB0000000000001LL), + 0x1.FEDCBCp+76F)) + return 1; + if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCBBFFFFFFFFFFFFFLL), + 0x1.FEDCBCp+76F)) + return 1; + if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCBC0000000000000LL), + 0x1.FEDCBCp+76F)) + return 1; + if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCBC0000000000001LL), + 0x1.FEDCBCp+76F)) + return 1; + if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCBD0000000000000LL), + 0x1.FEDCBCp+76F)) + return 1; + if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCBD0000000000001LL), + 0x1.FEDCBEp+76F)) + return 1; + if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCBDFFFFFFFFFFFFFLL), + 0x1.FEDCBEp+76F)) + return 1; + if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCBE0000000000000LL), + 0x1.FEDCBEp+76F)) + return 1; + +#endif + return 0; +} |