enable f16;

var<private> t : f32;

fn m() -> mat4x4<f32> {
  t = (t + 1.0f);
  return mat4x4<f32>(1.0f, 2.0f, 3.0f, 4.0f, 5.0f, 6.0f, 7.0f, 8.0f, 9.0f, 10.0f, 11.0f, 12.0f, 13.0f, 14.0f, 15.0f, 16.0f);
}

fn f() {
  var v : mat4x4<f16> = mat4x4<f16>(m());
}