Cannot sample enough valid points. (more)

\[e^{\log \left(\sqrt{x.re \cdot x.re + x.im \cdot x.im}\right) \cdot y.re - \tan^{-1}_* \frac{x.im}{x.re} \cdot y.im} \cdot \cos \left(\log \left(\sqrt{x.re \cdot x.re + x.im \cdot x.im}\right) \cdot y.im + \tan^{-1}_* \frac{x.im}{x.re} \cdot y.re\right)\]
e^{\log \left(\sqrt{x.re \cdot x.re + x.im \cdot x.im}\right) \cdot y.re - \tan^{-1}_* \frac{x.im}{x.re} \cdot y.im} \cdot \cos \left(\log \left(\sqrt{x.re \cdot x.re + x.im \cdot x.im}\right) \cdot y.im + \tan^{-1}_* \frac{x.im}{x.re} \cdot y.re\right)
double f(double x_re, double x_im, double y_re, double y_im) {
        double r899596 = x_re;
        double r899597 = r899596 * r899596;
        double r899598 = x_im;
        double r899599 = r899598 * r899598;
        double r899600 = r899597 + r899599;
        double r899601 = sqrt(r899600);
        double r899602 = log(r899601);
        double r899603 = y_re;
        double r899604 = r899602 * r899603;
        double r899605 = atan2(r899598, r899596);
        double r899606 = y_im;
        double r899607 = r899605 * r899606;
        double r899608 = r899604 - r899607;
        double r899609 = exp(r899608);
        double r899610 = r899602 * r899606;
        double r899611 = r899605 * r899603;
        double r899612 = r899610 + r899611;
        double r899613 = cos(r899612);
        double r899614 = r899609 * r899613;
        return r899614;
}