[llvm] [SLP]Initial support for non-power-of-2 (but still whole register) number of elements in operands. (PR #107273)

[Alexey Bataev via llvm-commits]

alexey-bataev wrote:

> Looks like there may be another crash: https://llvm.godbolt.org/z/azGPd145f

Must be fixed in be6aed90c70b7ef718c6c9217158933c8dd57372

https://github.com/llvm/llvm-project/pull/107273