[PATCH] D32494: [Loop Deletion] Delete loops that are never executed

[Anna Thomas via Phabricator via llvm-commits]

anna updated this revision to Diff 97295.
anna marked 3 inline comments as done.
anna added a comment.

Addressed review comments.
Main changes: Preheader is now a requirement for never executed loops.
We can also handle multiple immediate predecessors in the never executed loop.


https://reviews.llvm.org/D32494

Files:
  lib/Transforms/Scalar/LoopDeletion.cpp
  test/Transforms/LoopDeletion/unreachable-loops.ll

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