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// RUN: %clang_builtins %s %librt -o %t && %run %t
// REQUIRES: librt_has_floatunditf
#include "int_lib.h"
#include <complex.h>
#include <math.h>
#include <stdio.h>
// The testcase currently assumes IEEE TF format, once that has been
// fixed the defined(CRT_HAS_IEEE_TF) guard can be removed to enable it for
// IBM 128 floats as well.
#if defined(CRT_HAS_IEEE_TF)
# include "fp_test.h"
// Returns: long integer converted to long double
COMPILER_RT_ABI tf_float __floatunditf(du_int a);
int test__floatunditf(du_int a, uint64_t expectedHi, uint64_t expectedLo) {
tf_float x = __floatunditf(a);
int ret = compareResultF128(x, expectedHi, expectedLo);
if (ret)
printf("error in __floatunditf(%Lu) = %.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 defined(CRT_HAS_IEEE_TF)
if (test__floatunditf(0xffffffffffffffffULL, UINT64_C(0x403effffffffffff),
UINT64_C(0xfffe000000000000)))
return 1;
if (test__floatunditf(0xfffffffffffffffeULL, UINT64_C(0x403effffffffffff),
UINT64_C(0xfffc000000000000)))
return 1;
if (test__floatunditf(0x8000000000000000ULL, UINT64_C(0x403e000000000000),
UINT64_C(0x0)))
return 1;
if (test__floatunditf(0x7fffffffffffffffULL, UINT64_C(0x403dffffffffffff),
UINT64_C(0xfffc000000000000)))
return 1;
if (test__floatunditf(0x123456789abcdef1ULL, UINT64_C(0x403b23456789abcd),
UINT64_C(0xef10000000000000)))
return 1;
if (test__floatunditf(0x2ULL, UINT64_C(0x4000000000000000), UINT64_C(0x0)))
return 1;
if (test__floatunditf(0x1ULL, UINT64_C(0x3fff000000000000), UINT64_C(0x0)))
return 1;
if (test__floatunditf(0x0ULL, UINT64_C(0x0), UINT64_C(0x0)))
return 1;
#else
printf("skipped\n");
#endif
return 0;
}
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