[PATCH] D102615: [LoopDeletion] Break backedge if we can prove that the loop is exited on 1st iteration

[Max Kazantsev via Phabricator via llvm-commits]

mkazantsev updated this revision to Diff 347308.
mkazantsev added a comment.

Added missing domination check for phi inputs (lost during rework).


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D102615/new/

https://reviews.llvm.org/D102615

Files:
  llvm/lib/Transforms/Scalar/LoopDeletion.cpp
  llvm/test/Transforms/LoopDeletion/eval_first_iteration.ll
  llvm/test/Transforms/LoopDeletion/noop-loops-with-subloops.ll
  llvm/test/Transforms/LoopDeletion/zero-btc.ll

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