floatditf_test.c
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// RUN: %clang_builtins %s %librt -o %t && %run %t
// REQUIRES: librt_has_floatditf
#include "int_lib.h"
#include <math.h>
#include <complex.h>
#include <stdio.h>
#if __LDBL_MANT_DIG__ == 113
#include "fp_test.h"
// Returns: long integer converted to long double
COMPILER_RT_ABI long double __floatditf(long long a);
int test__floatditf(long long a, uint64_t expectedHi, uint64_t expectedLo)
{
long double x = __floatditf(a);
int ret = compareResultLD(x, expectedHi, expectedLo);
if (ret)
printf("error in __floatditf(%Ld) = %.20Lf, "
"expected %.20Lf\n", a, x, fromRep128(expectedHi, expectedLo));
return ret;
}
char assumption_1[sizeof(long double) * CHAR_BIT == 128] = {0};
#endif
int main()
{
#if __LDBL_MANT_DIG__ == 113
if (test__floatditf(0x7fffffffffffffff, UINT64_C(0x403dffffffffffff), UINT64_C(0xfffc000000000000)))
return 1;
if (test__floatditf(0x123456789abcdef1, UINT64_C(0x403b23456789abcd), UINT64_C(0xef10000000000000)))
return 1;
if (test__floatditf(0x2, UINT64_C(0x4000000000000000), UINT64_C(0x0)))
return 1;
if (test__floatditf(0x1, UINT64_C(0x3fff000000000000), UINT64_C(0x0)))
return 1;
if (test__floatditf(0x0, UINT64_C(0x0), UINT64_C(0x0)))
return 1;
if (test__floatditf(0xffffffffffffffff, UINT64_C(0xbfff000000000000), UINT64_C(0x0)))
return 1;
if (test__floatditf(0xfffffffffffffffe, UINT64_C(0xc000000000000000), UINT64_C(0x0)))
return 1;
if (test__floatditf(-0x123456789abcdef1, UINT64_C(0xc03b23456789abcd), UINT64_C(0xef10000000000000)))
return 1;
if (test__floatditf(0x8000000000000000, UINT64_C(0xc03e000000000000), UINT64_C(0x0)))
return 1;
#else
printf("skipped\n");
#endif
return 0;
}