[PATCH] D17473: [LoopUnroll] Avoid unnecessary DT recomputation.

[Michael Zolotukhin via llvm-commits]

mzolotukhin updated this revision to Diff 48749.
mzolotukhin added a comment.

- Rebase on TOT.
- Optimize dom-info update for exit blocks.
- Add DT verification.
- Add more comments.


http://reviews.llvm.org/D17473

Files:
  lib/Transforms/Utils/LoopUnroll.cpp

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