reames added a comment.

In D133443#3790420 <https://reviews.llvm.org/D133443#3790420>, @asb wrote:

> The change in set of instructions without changing the version number is 
> concerning - do you know anyone involved in that group? It would be good to 
> feedback the difficulties this can cause for us. It's also not clear if there 
> might be changes again during ratification without changing the version 
> number, which wouldn't be ideal (though probably just about livable given 
> it's marked as experimental).

I agree that the incompatible change is highly sub-optimal.  I've asked around 
a bit on the status here, but nothing I would consider "official" or would want 
to quote someone on.  My overall take is that we probably should take this as 
experimental, but only with the understanding that it may change in 
incompatible ways.

> Let's discuss briefly in the meeting tomorrow. Implementation-wise it all 
> seems straightforward.

Definitely.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D133443/new/

https://reviews.llvm.org/D133443

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