@group(0) @binding(0) var<uniform> u : mat4x4<f32>;

fn a(m : mat4x4<f32>) {}
fn b(v : vec4<f32>) {}
fn c(f : f32) {}

@compute @workgroup_size(1)
fn f() {
    a(u);
    b(u[1]);
    b(u[1].ywxz);
    c(u[1].x);
    c(u[1].ywxz.x);
}