hfinkel added a comment.

In https://reviews.llvm.org/D38113#882187, @Anastasia wrote:

> In https://reviews.llvm.org/D38113#878840, @jlebar wrote:
>
> >
>


...

> Yes, I see this sounds more reasonable indeed. Btw, currently LLVM can remove 
> `convergent` in some cases to recover the performance loss?

Yes. See removeConvergentAttrs in lib/Transforms/IPO/FunctionAttrs.cpp.

...


https://reviews.llvm.org/D38113



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