fn faceForward_b316e5() { var res : vec4 = faceForward(vec4(), vec4(), vec4()); } [[stage(vertex)]] fn vertex_main() -> [[builtin(position)]] vec4 { faceForward_b316e5(); return vec4(); } [[stage(fragment)]] fn fragment_main() { faceForward_b316e5(); } [[stage(compute)]] fn compute_main() { faceForward_b316e5(); }