[PATCH] D84220: [IPSCCP] Fix a bug that the "returned" attribute is not cleared when function is optimized to return undef

[Florian Hahn via llvm-commits]

> On Jul 28, 2020, at 20:32, Congzhe Cao via Phabricator <reviews at reviews.llvm.org> wrote:
> 
> congzhe added a comment.
> 
> Could you review this patch please? Thank you! @nikic @davide @efriedma
> 

As I mentioned already, I have some comments in phabricator, but cannot submit them because "You do not have permission to edit this object.”

FWIW it is not common to lock down reviews to require Admin permissions.