> Hence why rust internally split one "semantic code unit" into multiple internal code units passed to LLM. And the same has happened in C and C++ land, albeit

> Hence why rust internally split one "semantic code unit" into multiple internal code units passed to LLM. And the same has happened in C and C++ land, albeit in the opposite direction, where multiple compilation units can be optimized together, i.e. LTO. See, e.g., GCC's -flto-partition option for selecting strategies for partitioning symbols for LTO. Also note that you can manually partition LTO in your Makefile by grouping compilation units into object files to be individually LTO'd.