[PATCH] D128011: [SimplifyLibCalls] Transform memchr(STR, C, N) to chain of ORs

[Nikita Popov via Phabricator via llvm-commits]

nikic added a comment.

This looks quite nice for the examples -- but can't this create a very large chain of comparisons in some cases? Like if you check every second character you'd end up with 128 comparisons? (Or maybe you need every third, I can imagine that we manage to fold every second character to am mask).


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  https://reviews.llvm.org/D128011/new/

https://reviews.llvm.org/D128011