[PATCH] D102982: [LoopUnroll] Use smallest exact trip count from any exit

[Philip Reames via Phabricator via llvm-commits]

reames added inline comments.


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Comment at: llvm/lib/Transforms/Scalar/LoopUnrollPass.cpp:1119
+  L->getExitingBlocks(ExitingBlocks);
+  for (BasicBlock *BB : ExitingBlocks) {
+    // Only unroll against latch-dominating exit blocks.
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I would strongly prefer this logic be sunk into the appropriate SCEV accessors.  I'm fine with you doing that in a follow up provided you commit to doing so.  I'll leave that decision up to you.  


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D102982/new/

https://reviews.llvm.org/D102982