Function RoundUp

javascript/packages/hps/src/fastcall.cc:26–28

using v8::Value;

template <typename T> constexpr T RoundUp(T a, T b) {
  return a % b != 0 ? a + b - (a % b) : a;
}

template <typename T, typename U> constexpr T *AlignUp(T *ptr, U alignment) {
  return reinterpret_cast<T *>(