[PATCH] D65204: [GVN] Also invalidate users of instructions replaced due to conditionals.

[Florian Hahn via Phabricator via llvm-commits]

fhahn created this revision.
fhahn added reviewers: john.brawn, efriedma, hfinkel, reames.
Herald added a subscriber: hiraditya.
Herald added a project: LLVM.

We also need to invalidate the users of the replaced value, as they could
be GEPs indexed by the replaced value. In that case, the cache will
contain stale information and return invalid information.

Fixes PR31651.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D65204

Files:
  llvm/lib/Transforms/Scalar/GVN.cpp
  llvm/test/Transforms/GVN/condprop-md-invalidation2.ll

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