SKIP: FAILED


RWByteAddressBuffer prevent_dce : register(u0);
uint quadSwapY_0c4938() {
  uint res = QuadReadAcrossY(1u);
  return res;
}

void fragment_main() {
  prevent_dce.Store(0u, quadSwapY_0c4938());
}

[numthreads(1, 1, 1)]
void compute_main() {
  prevent_dce.Store(0u, quadSwapY_0c4938());
}

FXC validation failure:
C:\src\dawn\Shader@0x00000154558860C0(4,14-32): error X3004: undeclared identifier 'QuadReadAcrossY'