[llvm] [LV] Vectorize Epilogues for loops with small VF but high IC (PR #108190)

[Sjoerd Meijer via llvm-commits]

sjoerdmeijer wrote:

Thanks again for working on this. 
I will kick off some performance runs with this, which I was planning to do but haven't done yet.
I am off tomorrow, but promise I will get back within a couple of days.  

https://github.com/llvm/llvm-project/pull/108190