[PATCH] D52164: [InstSimplify] Fold ne/eq comparison of a pointer produced by a noalias function

[Dávid Bolvanský via Phabricator via llvm-commits]

xbolva00 added a comment.

In https://reviews.llvm.org/D52164#1237188, @hfinkel wrote:

> > disable this fold when comparing noalias ptr with null
>
> But it's not just comparing to a nullptr constant, it's also comparing to another SSA value that, dynamically, is null.


Yeah.

But like the original idea was, we could handle comparison of noalias ptr to ptr pointing to global vars/functions, no?


Repository:
  rL LLVM

https://reviews.llvm.org/D52164