[PATCH] D15559: [LoopUnrollRuntime] Do unroll when IV's setp is one or minus one

[Junmo Park via llvm-commits]

flyingforyou updated this revision to Diff 43507.
flyingforyou added a comment.

Addressed Sanjoy's comment.

Your comment was really helpful for me. I am still not sure that this patch is ok or not.
But comparing SCEV expression between TripCountSC and exit value makes this patch more robust.

Thanks.


http://reviews.llvm.org/D15559

Files:
  lib/Analysis/ScalarEvolutionExpander.cpp
  lib/Transforms/Utils/LoopUnrollRuntime.cpp
  test/Transforms/LoopUnroll/high-cost-trip-count-computation.ll

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