[llvm] [DSE] Defer alloca store elimination for CoroSplit (PR #133918)

[Nikita Popov via llvm-commits]

https://github.com/nikic commented:

Can you add some more detail to the issue description why coroutine semantics require this? This hack looks very problematic to me, and seems quite distinct from the existing coroutine workarounds we have (which are about the possibility of the thread identity changing across suspension points).

https://github.com/llvm/llvm-project/pull/133918