[llvm] [LV] Add initial support for vectorizing literal struct return values (PR #109833)

[Benjamin Maxwell via llvm-commits]

MacDue wrote:

> Thanks for trying this out. I'm still catching up on patches after the developers meeting, plan to get to take a closer look by the end of this week.

No worries! Thanks :smile: 

https://github.com/llvm/llvm-project/pull/109833