F_lo
#define F_lo(i) (T[(i)].F_lo)
#define ln2_lo F_lo(TSIZE - 1)
long double F_lo; /* next 113 bits for log(1 / G_i) */
dd * P14))))))))))) + (F_lo(i) + dk * ln2_lo) + d * d * P2;
dd * P14))))))))))) + (F_lo(i) + dk * ln2_lo + d_lo) + d * d * P2;
#define F_lo(i) (T[(i)].F_lo)
#define ln2_lo F_lo(TSIZE - 1)
double F_lo; /* next 53 bits for log(1 / G_i) */
(F_lo(i) + dk * ln2_lo + z * d * (d * P4 + P3)) + z * P2;
(F_lo(i) + dk * ln2_lo + d_lo + z * d * (d * P4 + P3)) + z * P2;