[PATCH] D93497: Salvage debug info for function arguments in coro-split funclets.

[Adrian Prantl via Phabricator via llvm-commits]

aprantl added a comment.

> Do you have any plan to salvage debug info under O2 <https://reviews.llvm.org/owners/package/2/> when most of the dbg.declare are changed to dbg.value?

I was hoping that in an optimization pipeline the coroutine splitting would be invoked //before// mem2reg. This patch is really depending on the semantics of dbg.declare, which guarantees that the address of the variable doesn't change throughout the entire function. With a dbg.value we don't have any such guarantees, since it's just a snapshot at one particular location.


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  https://reviews.llvm.org/D93497/new/

https://reviews.llvm.org/D93497