SKIP: FAILED fn frexp_4b73e3() { var arg_1 : vec4; var res : vec4 = frexp(vec4(), &(arg_1)); } [[stage(vertex)]] fn vertex_main() { frexp_4b73e3(); } [[stage(fragment)]] fn fragment_main() { frexp_4b73e3(); } [[stage(compute)]] fn compute_main() { frexp_4b73e3(); } Failed to generate: error: Unknown builtin method: frexp