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

[Shilei Tian via llvm-branch-commits]

shiltian wrote:

> 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.

In my case, it is because `-mlink-builtin-bitcode-postopt` that links into a bitcode library that doesn't have GUIDs.

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