__p1evll
hidden long double __p1evll(long double, const long double *, int);
y = x * (z * __polevll(z, R, 3) / __p1evll(z, S, 3));
y = x * (z * __polevll(x, P, 6) / __p1evll(x, Q, 7));
z = x * (z * __polevll(z, R, 3) / __p1evll(z, S, 3));
y = x * (z * __polevll(x, P, 6) / __p1evll(x, Q, 6));
y = x * (z * __polevll(z, R, 3) / __p1evll(z, S, 3));
y = x * (z * __polevll(x, P, 6) / __p1evll(x, Q, 7));
z = x * (z * __polevll(z, R, 3) / __p1evll(z, S, 3));
y = x * (z * __polevll(x, P, 6) / __p1evll(x, Q, 6));
w = x * (z * __polevll(x, P, 3) / __p1evll(x, Q, 3));