After the BB bump I can do the backport to 1.4

Did you test that the patch for LLVM8 applies cleanly? I was applying in JuliaPackaging/Yggdrasil#658 and it seems to fail.

I don't believe any released version of julia uses LLVM 8, so I'd be fine just not supporting the patch there.

1.4 uses LLVM 8 right?

This should be good to go, and I will handle the backport to 1.4

Oops, of course, for some reason I thought 1.4 was also LLVM 9. @vchuravy did you manage to port the patch to LLVM 8 or should I do it?

Oops, of course, for some reason I thought 1.4 was also LLVM 9. @vchuravy did you manage to port the patch to LLVM 8 or should I do it?

I was planning to do it over the weekend since there is a second patch as well. Dealing with LLVM is a good cure of insomnia.

Backporting tracked in #35313