test/tint/expressions/bitcast/let/128bit/vec4u32-vec4i32.wgsl

@compute @workgroup_size(1)
fn f() {
    let a : vec4<u32> = vec4<u32>(1073757184u, 3288351232u, 3296724992u, 987654321u);
    let b : vec4<i32> = bitcast<vec4<i32>>(a);
}