struct VertexInputs {
  [[builtin(vertex_index)]]
  vertex_index : u32;
  [[builtin(instance_index)]]
  instance_index : u32;
}

[[stage(vertex)]]
fn main(inputs : VertexInputs) -> [[builtin(position)]] vec4<f32> {
  let foo : u32 = (inputs.vertex_index + inputs.instance_index);
  return vec4<f32>();
}