Function ceil_log2

tensorflow/lite/experimental/ruy/size_util.h:38–41

}

inline int ceil_log2(int n) {
  RUY_DCHECK_GE(n, 1);
  return n == 1 ? 0 : floor_log2(n - 1) + 1;
}

inline bool is_pot(int value) {
  return (value > 0) && ((value & (value - 1)) == 0);