struct S1 {
  int i;
};

struct S2 {
  S1 s1;
};

struct S3 {
  S2 s2;
};


RWByteAddressBuffer v : register(u0);
int f(S3 s3) {
  return s3.s2.s1.i;
}

[numthreads(1, 1, 1)]
void main() {
  S3 v_1 = {{{int(42)}}};
  v.Store(0u, asuint(f(v_1)));
}