[llvm] [LV] Allow runtime checks for low trip count loops without scalar epilogues (PR #197391)

[Florian Hahn via llvm-commits]

https://github.com/fhahn commented:

> This patch makes CM_EpilogueNotAllowedLowTripLoop rely directly on the minimum profitable trip count check. 

It looks like none of the tests actually generate a minimum profitable trip count check. would be good to at least add such a test (possibly where the trip count is known to be low but not constant)

https://github.com/llvm/llvm-project/pull/197391