[clang] [llvm] [llvm] Introduce MoveEntryAllocaInit pass (PR #164882)

[Nikita Popov via cfe-commits]

nikic wrote:

Can you please create a separate PR for the miscompilation fix? It should be independent of this change if you add the auto init metadata to the alloca.

https://github.com/llvm/llvm-project/pull/164882