[PATCH] D63060: [InstCombine] usub.sat(a, b) + b => umax(a, b) (PR42178)

[Nikita Popov via Phabricator via llvm-commits]

nikic added a comment.

@lebedev.ri That looks like a bug in alive, `usub_sat i8 undef, 0x10` is not undef (we fold to zero).


Repository:
  rL LLVM

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  https://reviews.llvm.org/D63060/new/

https://reviews.llvm.org/D63060