[PATCH] D26527: Use profile info to adjust loop unroll threshold.

[Dehao Chen via llvm-commits]

danielcdh updated this revision to Diff 78260.
danielcdh added a comment.

Update the patch to remove dependency to BFI/PSI and only use trip count to evaluate if we want to unroll the loop.

Also steal Micheal's getLoopEstimatedTripCount implementation.


https://reviews.llvm.org/D26527

Files:
  include/llvm/Transforms/Utils/LoopUtils.h
  lib/Transforms/Scalar/LoopUnrollPass.cpp
  lib/Transforms/Utils/LoopUtils.cpp
  test/Transforms/LoopUnroll/unroll-heuristics-pgo.ll

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