[PATCH] D37093: [coroutines] Promote cleanup.dest.slot-like allocas to registers to avoid storing them in the coroutine frame

[Gor Nishanov via Phabricator via llvm-commits]

GorNishanov added a subscriber: rjmccall.
GorNishanov added a comment.

@rjmccall suggested to do the cleanup dest slot elimination wholesale for all functions in clang. (Not specific for coroutines).
That is a sweeping change :-), so, I don't mind still having this here to unblock Facebook and when the clang change lands, remove this part from llvm.


https://reviews.llvm.org/D37093