fn all_353d6a() {
  var res : bool = all(bool());
}

@stage(vertex)
fn vertex_main() -> @builtin(position) vec4<f32> {
  all_353d6a();
  return vec4<f32>();
}

@stage(fragment)
fn fragment_main() {
  all_353d6a();
}

@stage(compute) @workgroup_size(1)
fn compute_main() {
  all_353d6a();
}
