[PATCH] D68577: [LV] Apply sink-after & interleave-groups as VPlan transformations (NFC)

[Eli Friedman via Phabricator via llvm-commits]

efriedma added a comment.

In D68577#1739971 <https://reviews.llvm.org/D68577#1739971>, @Ayal wrote:

> 1. Such loops can and should be optimized to have a simple induction variable with constant trip count regardless of (and prior to) LV.


indvars does this transform.  That said, it only runs once; in some cases, we manage to simplify the loop after indvars runs.  Maybe it makes sense to run indvars again? We'd want to measure how much it actually triggers in practice.


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