fn select_c4a4ef() {
var res : vec4<u32> = select(vec4<u32>(), vec4<u32>(), vec4<bool>());
}
[[stage(vertex)]]
fn vertex_main() -> [[builtin(position)]] vec4<f32> {
select_c4a4ef();
return vec4<f32>();
[[stage(fragment)]]
fn fragment_main() {
[[stage(compute)]]
fn compute_main() {