(In reply to Matt Arsenault from comment #2)
> This is one of those annoying cases where ldexp doesn't have an equivalent
> generic ISD node. We should probably add one and use it for the libcall and
> handle it like most of the other math LibFuncs.

Do you think you or someone else (Nicolai?) can look into this soon? Otherwise,
we probably need to to stop using this from Mesa again for now.