[llvm] [LV, VP]VP intrinsics support for the Loop Vectorizer + adding new tail-folding mode using EVL. (PR #76172)

[Florian Hahn via llvm-commits]

fhahn wrote:

> > Thanks for the recent update! Only a further suggestion regarding tail-folding style handling and moving that to a separate NFC PR in preparation for this one
> 
> Please +1 if remaining changes can be done in a separate PR.

In case I wasn't clear above, the suggestion is to do the refactoring of tail-folding style selection as separate PR and have this PR depend on the refactoring PR.

https://github.com/llvm/llvm-project/pull/76172