SKIP: FAILED fn select_80a9a9() { var res : vec3 = select(vec3(), vec3(), vec3()); } [[stage(vertex)]] fn vertex_main() { select_80a9a9(); } [[stage(fragment)]] fn fragment_main() { select_80a9a9(); } [[stage(compute)]] fn compute_main() { select_80a9a9(); } Failed to generate: error: select not supported in HLSL backend yet