[PATCH] D15559: [LoopUnrollRuntime] Do unroll when the unroll factor is 2

[Hal Finkel via llvm-commits]

hfinkel added a subscriber: hfinkel.
hfinkel added a comment.

This needs a test case (either in test/Transforms/LoopUnroll/AArch64 or in test/Transforms/LoopUnroll). Also, why does this logic belong here and not in Expander.isHighCostExpansion?


http://reviews.llvm.org/D15559