[llvm] LAA: version unit stride for stores (PR #124567)

[Ramkumar Ramachandra via llvm-commits]

artagnon wrote:

> Hmm, it seems a shame to close this because I thought what you are doing here seems perfectly sensible. There seems to be a genuine improvement in llvm/test/Transforms/LoopVectorize/version-stride-with-integer-casts.ll

I would defer to @fhahn's judgement on this: yes, the patch seems sensible to me too, but there seems to be an unfortunate regression (?). Will re-open if there is some way forward.

https://github.com/llvm/llvm-project/pull/124567