#include "DD.h"
#include "../int_math.h"
uint64_t __fixtfdi(long double input)
{
const DD x = { .ld = input };
const doublebits hibits = { .d = x.s.hi };
const uint32_t absHighWord = (uint32_t)(hibits.x >> 32) & UINT32_C(0x7fffffff);
const uint32_t absHighWordMinusOne = absHighWord - UINT32_C(0x3ff00000);
if (UINT32_C(0x03f00000) > absHighWordMinusOne)
{
const int unbiasedHeadExponent = absHighWordMinusOne >> 20;
int64_t result = hibits.x & INT64_C(0x000fffffffffffff);
result |= INT64_C(0x0010000000000000);
result <<= 10;
const int64_t hiNegationMask = ((int64_t)(hibits.x)) >> 63;
if (0.0 != x.s.lo)
{
const doublebits lobits = { .d = x.s.lo };
int64_t tailMantissa = lobits.x & INT64_C(0x000fffffffffffff);
tailMantissa |= INT64_C(0x0010000000000000);
const int64_t loNegationMask = ((int64_t)(lobits.x)) >> 63;
const int64_t negationMask = loNegationMask ^ hiNegationMask;
tailMantissa = (tailMantissa ^ negationMask) - negationMask;
const int biasedTailExponent = (int)(lobits.x >> 52) & 0x7ff;
tailMantissa >>= (unbiasedHeadExponent - (biasedTailExponent - (1023 - 10)));
result += tailMantissa;
}
result >>= (62 - unbiasedHeadExponent);
result = (result ^ hiNegationMask) - hiNegationMask;
return result;
}
if (1.0 > crt_fabs(x.s.hi))
return INT64_C(0);
if (x.s.hi == -0x1.0p63) {
int64_t result = INT64_MIN;
if (0.0 < x.s.lo)
{
const doublebits lobits = { .d = x.s.lo };
int64_t tailMantissa = lobits.x & INT64_C(0x000fffffffffffff);
tailMantissa |= INT64_C(0x0010000000000000);
tailMantissa = (tailMantissa ^ INT64_C(-1)) + INT64_C(1);
const int biasedTailExponent = (int)(lobits.x >> 52) & 0x7ff;
tailMantissa >>= 1075 - biasedTailExponent;
result -= tailMantissa;
}
return result;
}
if (x.s.hi > 0.0)
return INT64_MAX;
else
return INT64_MIN;
}