[llvm] [LV] Introduce the EVLIVSimplify Pass for EVL-vectorized loops (PR #91796)

[Min-Yih Hsu via llvm-commits]

mshockwave wrote:

> > The new exit condition is EVLIV > VF * BTC, where EVLIV is the new induction variable, VF is the vectorization factor and BTC is backedge taken count (i.e. trip count minus one in most cases).
> 
> I don't know if I understand correctly, maybe #102575 is related to this change?

thanks, I tried your PR but unfortunately it didn't help a lot...

https://github.com/llvm/llvm-project/pull/91796