[PATCH] D68670: [Utils] Cleanup similar cases to MergeBlockIntoPredecessor.

[Alina Sbirlea via Phabricator via llvm-commits]

asbirlea created this revision.
asbirlea added reviewers: chandlerc, sanjoy.google, george.burgess.iv.
Herald added a project: LLVM.

There are two cases where a block is merged into its predecessor and the
MergeBlockIntoPredecessor API is not used. Update the API so it can be
reused in the other cases, in order to avoid code duplication.

Cleanup motivated by D68659 <https://reviews.llvm.org/D68659>.


Repository:
  rL LLVM

https://reviews.llvm.org/D68670

Files:
  include/llvm/Transforms/Utils/BasicBlockUtils.h
  lib/Transforms/Scalar/LoopUnswitch.cpp
  lib/Transforms/Utils/BasicBlockUtils.cpp
  lib/Transforms/Utils/LoopRotationUtils.cpp

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