[PATCH] D142428: [InstCombine] Add tests that patterns for knownbits of and/or/xor apply in `SimplifyDemandedUseBits`; NFC

[Nikita Popov via Phabricator via llvm-commits]

nikic added a comment.

Hm, do we actually need these tests? It looks like the ValueTracking/knownbits-and-or-xor-lowbit.ll tests already demonstrate that the low bit patterns fold via demanded bits, and ValueTracking/knownbits-bmi-pattern.ll that the bmi patterns do as well, which covers all the relevant special cases, right?


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  https://reviews.llvm.org/D142428/new/

https://reviews.llvm.org/D142428