[llvm] [LoopVectorizer] Add support for partial reductions (PR #92418)

[Sam Tebbs via llvm-commits]

SamTebbs33 wrote:

Thanks Florian. The plan looks like [this](https://pastebin.com/CWzhyHzt) after epilogue vectorisation and I'm looking into why the reduction PHI is receiving a scalar value:

https://github.com/llvm/llvm-project/pull/92418