[PATCH] D25963: [LoopUnroll] Implement profile-based loop peeling

[Michael Kuperstein via llvm-commits]

mkuper updated this revision to Diff 78574.
mkuper added a comment.

Rebased to resolve conflicts with r287186.

Dehao, note I moved the flat loop check to be below the peeling computation, otherwise it would preempt it.
I think as long as it's above runtime unrolling, it does what you meant, right?


https://reviews.llvm.org/D25963

Files:
  include/llvm/Analysis/TargetTransformInfo.h
  include/llvm/Transforms/Utils/UnrollLoop.h
  lib/Transforms/Scalar/LoopUnrollPass.cpp
  lib/Transforms/Utils/CMakeLists.txt
  lib/Transforms/Utils/LoopUnroll.cpp
  lib/Transforms/Utils/LoopUnrollPeel.cpp
  lib/Transforms/Utils/LoopUtils.cpp
  test/Transforms/LoopUnroll/peel-loop-pgo.ll
  test/Transforms/LoopUnroll/peel-loop.ll

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