[llvm] [SLP]Initial support for non-power-of-2 (but still whole register) number of elements in operands. (PR #106449)

[Alexey Bataev via llvm-commits]

alexey-bataev wrote:

Thanks for the report, feel free to revert for now, will fix next week

https://github.com/llvm/llvm-project/pull/106449