Comment by neonsunset

Absolutely fair! FFmpeg does fall into the category of scenarios where skipping to the very last mile optimizations is reasonable. And thank you for your work on FFmpeg!

Most code paths out there aren't like that however and compilers are not too bad at instruction selection nowadays (you'd be right to mention that they sometimes have odd regressions, I've definitely seen that being a problem in LLVM, GCC and RyuJIT).