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// RUN: %clang_builtins %s %librt -o %t && %run %t
// REQUIRES: librt_has_trunctfhf2
#include "int_lib.h"
#include <stdio.h>
#if __LDBL_MANT_DIG__ == 113 && defined(COMPILER_RT_HAS_FLOAT16)
#include "fp_test.h"
TYPE_FP16 __trunctfhf2(long double a);
int test__trunctfhf2(long double a, uint16_t expected) {
TYPE_FP16 x = __trunctfhf2(a);
int ret = compareResultH(x, expected);
if (ret) {
printf("error in test__trunctfhf2(%.20Lf) = %#.4x, "
"expected %#.4x\n",
a, toRep16(x), expected);
}
return ret;
}
char assumption_1[sizeof(TYPE_FP16) * CHAR_BIT == 16] = {0};
#endif
int main() {
#if __LDBL_MANT_DIG__ == 113 && defined(COMPILER_RT_HAS_FLOAT16)
// qNaN
if (test__trunctfhf2(makeQNaN128(),
UINT16_C(0x7e00)))
return 1;
// NaN
if (test__trunctfhf2(makeNaN128(UINT64_C(0x810000000000)),
UINT16_C(0x7e00)))
return 1;
// inf
if (test__trunctfhf2(makeInf128(),
UINT16_C(0x7c00)))
return 1;
if (test__trunctfhf2(-makeInf128(),
UINT16_C(0xfc00)))
return 1;
// zero
if (test__trunctfhf2(0.0L, UINT16_C(0x0)))
return 1;
if (test__trunctfhf2(-0.0L, UINT16_C(0x8000)))
return 1;
if (test__trunctfhf2(3.1415926535L,
UINT16_C(0x4248)))
return 1;
if (test__trunctfhf2(-3.1415926535L,
UINT16_C(0xc248)))
return 1;
if (test__trunctfhf2(0x1.987124876876324p+100L,
UINT16_C(0x7c00)))
return 1;
if (test__trunctfhf2(0x1.987124876876324p+12L,
UINT16_C(0x6e62)))
return 1;
if (test__trunctfhf2(0x1.0p+0L,
UINT16_C(0x3c00)))
return 1;
if (test__trunctfhf2(0x1.0p-14L,
UINT16_C(0x0400)))
return 1;
// denormal
if (test__trunctfhf2(0x1.0p-20L,
UINT16_C(0x0010)))
return 1;
if (test__trunctfhf2(0x1.0p-24L,
UINT16_C(0x0001)))
return 1;
if (test__trunctfhf2(-0x1.0p-24L,
UINT16_C(0x8001)))
return 1;
if (test__trunctfhf2(0x1.5p-25L,
UINT16_C(0x0001)))
return 1;
// and back to zero
if (test__trunctfhf2(0x1.0p-25L,
UINT16_C(0x0000)))
return 1;
if (test__trunctfhf2(-0x1.0p-25L,
UINT16_C(0x8000)))
return 1;
// max (precise)
if (test__trunctfhf2(65504.0L,
UINT16_C(0x7bff)))
return 1;
// max (rounded)
if (test__trunctfhf2(65519.0L,
UINT16_C(0x7bff)))
return 1;
// max (to +inf)
if (test__trunctfhf2(65520.0L,
UINT16_C(0x7c00)))
return 1;
if (test__trunctfhf2(65536.0L,
UINT16_C(0x7c00)))
return 1;
if (test__trunctfhf2(-65520.0L,
UINT16_C(0xfc00)))
return 1;
if (test__trunctfhf2(0x1.23a2abb4a2ddee355f36789abcdep+5L,
UINT16_C(0x508f)))
return 1;
if (test__trunctfhf2(0x1.e3d3c45bd3abfd98b76a54cc321fp-9L,
UINT16_C(0x1b8f)))
return 1;
if (test__trunctfhf2(0x1.234eebb5faa678f4488693abcdefp+453L,
UINT16_C(0x7c00)))
return 1;
if (test__trunctfhf2(0x1.edcba9bb8c76a5a43dd21f334634p-43L,
UINT16_C(0x0)))
return 1;
#else
printf("skipped\n");
#endif
return 0;
}
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