llvm-project

5f916497 - Optimize std::__tree::__assign_multi to insert the provided range at the end of the tree every time (#131030)

Optimize std::__tree::__assign_multi to insert the provided range at the end of the tree every time (#131030) This improves performance for the copy-assignment operators of associative containers such as `std::map`. This optimization already exists in other places in the codebase, and seems to have been missed here.