[PATCH] D45853: [ADT] Make filter_iterator support bidirectional iteration

[Tim Shen via Phabricator via llvm-commits]

timshen accepted this revision.
timshen added a comment.
This revision is now accepted and ready to land.

Looks good. The filter_iterator_base + filter_iterator_impl + filter_iterator hierarchy is unfortunately complicated, but I don't have any immediate ideas on simplifying it.


https://reviews.llvm.org/D45853