[llvm-branch-commits] [llvm] [LV] An attempt to cherry-pick the fix PR #132691 (cherry-pick from the main branch to the release/20.x branch) (PR #135231)

[Florian Hahn via llvm-branch-commits]

fhahn wrote:

I'm not sure if it is feasible to strip the fix down, as it depends quite a few refactoring patches.

For 20.x, it might be best just not enable epilogue vectorization for FindLastIV: https://github.com/llvm/llvm-project/pull/135666

https://github.com/llvm/llvm-project/pull/135231