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

[Junmo Park via llvm-commits]

flyingforyou added a comment.

Thanks for comment. Sanjoy.

test2's TripCountSC is "(1 umax ((23 + %conv7) /u %conv7))".

How can we handle this in `SCEVExpander::isHighCostExpansion`?

Please let me know.

Junmo.


http://reviews.llvm.org/D15559