// Optional<StratifiedIndex> because Optional<StratifiedIndex> would
// eat up a considerable amount of extra memory, after struct
// padding/alignment is taken into account.
- static LLVM_CONSTEXPR auto SetSentinel =
- std::numeric_limits<StratifiedIndex>::max();
+ static const StratifiedIndex SetSentinel;
// \brief The index for the set "above" current
StratifiedIndex Above;