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

[Sjoerd Meijer via llvm-commits]

sjoerdmeijer wrote:

Forgot to add one nit: I applied the patch and saw quite a few regression test failures; the precommit tests show them too.

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