[PATCH] D70462: [InstCombine] Change InstCombineAddSub to not perform constant folding when there is an intermediate use of the source register.

[Roman Lebedev via Phabricator via llvm-commits]

lebedev.ri added a comment.

-1 to adding more artificial one-use restrictions.
I agree there is a general problem of unability to see if
there exists a particular instruction already.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D70462/new/

https://reviews.llvm.org/D70462