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

[Philip Reames via llvm-commits]

preames wrote:

> Ping!

My previous question still stands. Can you explain how this version of the patch differs (profitability heuristic wise) from the previous?  I'm not asking to be difficult.  I'm asking because it's hard to review the change without knowing what your intention and reasoning is.  

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