message: vertexfilter: Correct __builtin_rotateleft64 usage
  It's available since Clang 8
diff: @@ -150,7 +150,7 @@ inline uint64_t rotateleft64(uint64_t v, int x)
  {
  #if defined(_MSC_VER) && !defined(__clang__)
  return _rotl64(v, x);
  -#elif defined(__clang__) && __clang_major__ >= 9
  +#elif defined(__clang__) && __clang_major__ >= 8
  return __builtin_rotateleft64(v, x);
  #else
  return (v << (x & 63)) | (v >> ((64 - x) & 63));
  