[llvm] [MemCpyOpt] lifetime markers reconstruction for Stack-move optimization (PR #68990)

[Florian Mayer via llvm-commits]

fmayer wrote:

> I'm also okay with you taking over this or an alternative patch if you're interested :). I'm a little busy for a few months.
Can you elaborate a bit what is missing? Shepherding through review, or is it not done?


https://github.com/llvm/llvm-project/pull/68990