A couple ideas:
- clang plugin to detect empty out-of-line methods
- Build a tool to count calls to functions, and cross-reference with list of small symbols from supersize / nm.

Thanks!

I already have a script that finds all these symbols, sorry, forgot to mention it:
https://chromium-review.googlesource.com/c/chromium/src/+/702383

It leverages ICF in the linker to get all the 2 byte symbols that are necessarily just an empty return.

Awesome! Any ideas on how to count the number of calls to each of these functions in order to see which would be good to inline?

Alternatively - maybe use clang's refactoring tool to convert all of these methods to being inlined?

Does this affect 'git cl lint'?

I'd guess this is obsoleted by ThinLTO (it should inline empty functions so long as they are not virtual). Not sure how to validate this though.