Cannot sample enough valid points. (more)

\[x \cdot \sqrt{y \cdot y - z \cdot z}\]
x \cdot \sqrt{y \cdot y - z \cdot z}
double f(double x, double y, double z) {
        double r27996796 = x;
        double r27996797 = y;
        double r27996798 = r27996797 * r27996797;
        double r27996799 = z;
        double r27996800 = r27996799 * r27996799;
        double r27996801 = r27996798 - r27996800;
        double r27996802 = sqrt(r27996801);
        double r27996803 = r27996796 * r27996802;
        return r27996803;
}