@group(0)
@binding(1)
var<storage, read_write> buf: array<u32, 1>;

fn g() -> i32 {
    return 0;
}

fn f() ->  i32 {
    loop {
        g();
        break;
    }
    let o = g();
    return 0;
}

@compute
@workgroup_size(1)
fn main() {
    loop {
        if (buf[0] == 0u) {
            break;
        }
        var s = f();
        buf[0] = 0u;
    }
}