[PATCH] D155395: [SimplifyCFG] Remove identical successors in switch instructions in simple cases.

[DianQK via Phabricator via llvm-commits]

DianQK updated this revision to Diff 540772.
DianQK added a comment.

Update `simplifySwitchIdenticalSucc`.
Fix some failing test cases.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D155395/new/

https://reviews.llvm.org/D155395

Files:
  llvm/lib/Transforms/Utils/SimplifyCFG.cpp
  llvm/test/Transforms/SimplifyCFG/switch-simplify-identical-succs.ll
  llvm/test/Transforms/SimplifyCFG/tail-merge-noreturn.ll

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