test/tint/buffer/uniform/std140/unnested/mat4x4_f16/to_builtin.wgsl

// flags:  --hlsl_shader_model 62
enable f16;

@group(0) @binding(0) var<uniform> u : mat4x4<f16>;

@compute @workgroup_size(1)
fn f() {
    let t = transpose(u);
    let l = length(u[1]);
    let a = abs(u[0].ywxz.x);
}