[PATCH] D105610: [AMDGPU] Don't handle export done when unify exit nodes

[Ruiling, Song via Phabricator via llvm-commits]

ruiling added a comment.

In D105610#2863770 <https://reviews.llvm.org/D105610#2863770>, @critson wrote:

> This is an alternative to D102830 <https://reviews.llvm.org/D102830> ?

Yes, as I find that the frontend has been pretty aware of this hardware requirement and they have done lots of work when to insert the dummy export. So I think it is better we just let the frontend be responsible for such work. The backend is only for the inserting the exp-done for early-termination-of-kill This would make the pass easy to maintain.


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