llvm-project

750a5833 - [ThinLTO] Simplify checking for single external copy (NFCI) (#164861)

[ThinLTO] Simplify checking for single external copy (NFCI) (#164861) Replace a loop over all summary copies with a simple check for a single externally available copy of a symbol. The usage of this result has changed since it was added and we now only need to know if there is a single one.