[llvm] [SLP] Loop aware cost model/tree building (PR #187391)

[Alexey Bataev via llvm-commits]

alexey-bataev wrote:

> [microbenchmarks_google3.cpp](https://github.com/user-attachments/files/26691136/microbenchmarks_google3.cpp)
> 
> Attached is the pre processed source code. It's interesting that github doesn't support .ii file.

What are the compile flags? What is the function?

https://github.com/llvm/llvm-project/pull/187391