Szelethus added a comment.

In D59279#1438514 <https://reviews.llvm.org/D59279#1438514>, @mgrang wrote:

> Although, as you rightly pointed out that //ordered// sets of pointers are as 
> non-deterministic as //unordered// ones.


What if you store pointers to the elements of an array? In that case, it should 
be deterministic.

  -----------
  |1|2|3|5|6|
  -----------
   ^     ^ 
   p     q

In the above example, pointer `p`'s memory address will always be less then 
`q`'s, so in an ordered set, iterating over them would be deterministic. When 
hashing algorithms come into the picture, than it wouldn't be :^)


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D59279/new/

https://reviews.llvm.org/D59279



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