test/tint/expressions/type_ctor/mat4x2/explicit/scalars/f32.wgsl

var<private> m = mat4x2<f32>(0.0f, 1.0f,
                             2.0f, 3.0f,
                             4.0f, 5.0f,
                             6.0f, 7.0f);

@group(0) @binding(0)
var<storage, read_write> out : mat4x2<f32>;

@compute @workgroup_size(1)
fn f() {
  out = m;
}