[PATCH] D105688: [LoopDeletion] Handle switch in proving that loop exits on first iteration

[Dmitry Makogon via Phabricator via llvm-commits]

dmakogon created this revision.
dmakogon added reviewers: nikic, lebedev.ri, fhahn, reames, mkazantsev.
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Added check for switch-terminated blocks in loops. 
Now if a block is terminated with a switch, we try to find out which of the cases is taken on 1st iteration and mark corresponding edge from the block to the case successor as live.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D105688

Files:
  llvm/lib/Transforms/Scalar/LoopDeletion.cpp

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