[PATCH] D113367: [InstCombine] Refactor and/or of icmp with constant (NFCI)

[Nikita Popov via Phabricator via llvm-commits]

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Rather than testing for many specific combinations of predicates and values, compute the exact icmp regions for both comparisons and check whether they union/intersect exactly. If they do, construct the equivalent icmp for the new range. Assuming that the existing code handled all possible cases, this should be NFC.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D113367

Files:
  llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp

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