[PATCH] D27155: Merge strings using concurrent hash map (3rd try!)

[Rui Ueyama via Phabricator via llvm-commits]

ruiu added a comment.

As to whether we should do std::remove_if and then call std::sort only once or not, I think we shouldn't do that. Sorting is O(n log n), so you don't want to make n larger by merging streaks that could be sorted independently.


https://reviews.llvm.org/D27155