[PATCH] D100663: [LV] Add undef incoming value to loop-exit phis for the middle-block.

[Florian Hahn via llvm-commits]

> On 19 Apr 2021, at 17:57, Philip Reames via Phabricator <reviews at reviews.llvm.org> wrote:
> I think what we need here is an actual "unknown until later" value.  I'd be tempted to add an intrinsic for that, except I'm not quite sure if we need such a thing in a constant expression anywhere.   This was one of the things I'd been hoping to chat through with you offline when you had a moment.  :)


I think it would be great to discuss this offline. 
For me either Wednesday or Friday between 10am and 1pm California time would be ideal or Thursday before 10 am California time. Would any of those times work for you?

Cheers,
Florian