[PATCH] D103593: [Coroutine] Sink lifetime markers after switch of suspend blocks to avoid disturbing must tail calls

[Xun Li via Phabricator via llvm-commits]

lxfind added a comment.

I guess I am fine with solution 1 and see how far we can go with it. 
In the long run, we should look at cases where this optimization (sinkLifetimeStartMarkers) is effective and figure out why the lifetime start markers are emitted early, so that we could improve the lifetime marker creation in the first place. Overall it still feels a bit strange to move lifetime markers around (a sign that the front-end didn't do the right thing)


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https://reviews.llvm.org/D103593