[PATCH] D88014: [LoopUnswitch] Trivial simplification: remove trivial dead condition after unswitch

[Alina Sbirlea via Phabricator via llvm-commits]

asbirlea accepted this revision.
asbirlea added a comment.
This revision is now accepted and ready to land.

I think in general the pass is not trying to do DCE too, but here it looks cheap to clean the dead code left by the conditional.
Please have MSSA updated though.



================
Comment at: llvm/lib/Transforms/Scalar/SimpleLoopUnswitch.cpp:1156
+  if (ClonedConditionToErase)
+    RecursivelyDeleteTriviallyDeadInstructions(ClonedConditionToErase);
+
----------------
`RecursivelyDeleteTriviallyDeadInstructions(ClonedConditionToErase, nullptr, MSSAU);`


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  https://reviews.llvm.org/D88014/new/

https://reviews.llvm.org/D88014