fn faceForward_e6908b() { var res : vec2 = faceForward(vec2(), vec2(), vec2()); } [[stage(vertex)]] fn vertex_main() -> [[builtin(position)]] vec4 { faceForward_e6908b(); return vec4(); } [[stage(fragment)]] fn fragment_main() { faceForward_e6908b(); } [[stage(compute)]] fn compute_main() { faceForward_e6908b(); }