[PATCH] D14690: Don't force std::set for SmallSet

[Rafael Espíndola via llvm-commits]

>> -template <typename T, unsigned N,  typename C = std::less<T> >
>> +template <typename T, unsigned N, typename BigSet = DenseSet<T>>
>>  class SmallSet {
>>    /// Use a SmallVector to hold the elements here (even though it will never
>>    /// reach its 'large' stage) to avoid calling the default ctors of elements
>>    /// we will never use.
>>    SmallVector<T, N> Vector;
>> -  std::set<T, C> Set;
>> +  BigSet Set;
>
> Does `sizeof(SmallSet<T, 1>)` change with this?

Probably depends on the standard library. With libstdc++ 5.1 and T == int I get

master: 80
patch: 64

Cheers,
Rafael