[compiler-rt] [llvm] [Transforms][IPO] Add func suffix in ArgumentPromotion and DeadArgumentElimination (PR #109899)

[Mircea Trofin via llvm-commits]

mtrofin wrote:

I recommend having a RFC for this. First, names are important in a number of scenarios, currently - @xur-llvm can detail cases where the linux kernel wouldn't build because of name suffixes.

Second, I'd like to take a step back and understand alternatives (for which a more detailed description of the scenario, in a RFC, would be a good/necessary idea). For example, and in the absence of more information, I wonder why not leave the names use function level metadata, and save it into a section in the binary?

https://github.com/llvm/llvm-project/pull/109899