fp_sqrt
ATTRIBUTE_WARN_UNUSED_RET int fp_sqrt(fp_t sqrt1, fp_t sqrt2, fp_src_t n);
GENERIC_TEST_FP(fp_sqrt, FP_SQRT, "sqrt", fp_sqrt, "cfffs", "iooiO",
ret = fp_sqrt(y1, y2, y1);
ret = fp_sqrt(y1, y2, &tmp);
ret = fp_sqrt(x1, x2, &tmp);
ret = fp_sqrt(v1, v2, v1);
if (fp_sqrt(&y, &fp_tmp2, &fp_tmp1) == 0) {
ret_sqr = fp_sqrt(&x_sqrt1, &x_sqrt2, &x);