[lld] [lld-macho][arm64] Enhance safe ICF with thunk-based deduplication (PR #106573)

[via llvm-commits]

alx32 wrote:

> @alx32 Does the options.td need to be more clear?

Do you mean should we add docs on the various ICF levels ? 

> I plan to port this into ELF and test it on some projects to evaluate the code size improvements. Does this approach sound reasonable?

Yes, we should port these behaviors as much as possible. 

https://github.com/llvm/llvm-project/pull/106573