[PATCH] D109194: [InstCombine] Canonicalize masked merge; optimize (a & b) | (~a & c)

[Nikita Popov via Phabricator via llvm-commits]

nikic added a comment.

I don't think this makes sense as an InstCombine (middle end) transform. The resulting expression is less analyzable both in that freeze is a complete analysis blocker, and xor is generally less analyzable than and/or. This looks like something we should be doing in the backend instead.


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https://reviews.llvm.org/D109194