enable f16;
var<private> m = mat4x4(mat4x4(0.0h, 1.0h, 2.0h, 3.0h,
                               4.0h, 5.0h, 6.0h, 7.0h,
                               8.0h, 9.0h, 10.0h, 11.0h,
                               12.0h, 13.0h, 14.0h, 15.0h));

fn f() -> mat4x4<f16> {
    let m_1 = mat4x4(m);
    return m_1;
}