SKIP: FAILED fn isNormal_c286b7() { var res : vec3 = isNormal(vec3()); } [[stage(vertex)]] fn vertex_main() { isNormal_c286b7(); } [[stage(fragment)]] fn fragment_main() { isNormal_c286b7(); } [[stage(compute)]] fn compute_main() { isNormal_c286b7(); } Failed to generate: error: is_normal not supported in HLSL backend yet