SKIP: FAILED

RWByteAddressBuffer prevent_dce : register(u0);

uint2 subgroupBroadcast_a279d7() {
  uint2 res = WaveReadLaneAt((1u).xx, 1);
  return res;
}

void fragment_main() {
  prevent_dce.Store2(0u, asuint(subgroupBroadcast_a279d7()));
  return;
}

[numthreads(1, 1, 1)]
void compute_main() {
  prevent_dce.Store2(0u, asuint(subgroupBroadcast_a279d7()));
  return;
}
FXC validation failure:
<scrubbed_path>(4,15-40): error X3004: undeclared identifier 'WaveReadLaneAt'