[PATCH] D153698: [InstCombine] canonicalize multi xor as cmp+select

[Nikita Popov via Phabricator via llvm-commits]

nikic added a comment.

I've ended up implementing this myself in https://github.com/llvm/llvm-project/commit/3d199d086e076f0b9b90d4c59f2226a417a639b5. Additionally, I've landed the following changes to mitigate optimization regressions:

https://github.com/llvm/llvm-project/commit/cd1dcd2c956188521e668e77eec1f8913c01b644
https://github.com/llvm/llvm-project/commit/dc2b2ae7dc333f9c3769785fa147c7872adb9bba
https://github.com/llvm/llvm-project/commit/21827268ada2ee62eaee49fcfa1133ed06a63d25


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