SKIP: FAILED fn frexp_cb41c5() { var arg_1 : vec3; var res : vec3 = frexp(vec3(), &(arg_1)); } [[stage(vertex)]] fn vertex_main() { frexp_cb41c5(); } [[stage(fragment)]] fn fragment_main() { frexp_cb41c5(); } [[stage(compute)]] fn compute_main() { frexp_cb41c5(); } Failed to generate: error: Unknown builtin method: frexp