[llvm-branch-commits] [llvm] [llvm-reduce] Run AssignGUIDPass when loading BC (PR #208965)

[Mircea Trofin via llvm-branch-commits]

mtrofin wrote:

> > Do we know why it might not have GUID metadata? Is it a reducer artifact? I.e. should the reducer know not the remove GUID if present?
> 
> I ran into this error with ThinLTO BC straight out of clang in a distributed ThinLTO setup. I'm still not sure why GUIDs were not fully present, but they were missing from somewhere.
> 
> > Why would it? I don't even know what this is. It's not the default
> 
> It should be the default after some recent changes.

To help the reader: [RFC](discourse.llvm.org/t/rfc-keep-globalvalue-guids-stable/84801) and PR #184065 relanded in #201849.

https://github.com/llvm/llvm-project/pull/208965