dawn-cmake/test/tint/shader_io/vertex_input_builtins_struc...

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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>();
}