[llvm] [CGData] Global Merge Functions (PR #112671)

[Kyungwoo Lee via llvm-commits]

kyulee-com wrote:

> Nice! Will this new pass make Swift's function merging pass obsolete?

Yes. We use this new pass with thin-LTO, which is built on top of Swift's existing function merging pass. Since the former fully covers the functionality of the latter, technically we can disable it.

https://github.com/llvm/llvm-project/pull/112671