[moralestapia]

>Maybe I'm missing something, but I don't see what's special about Carbon here.

It's nothing really out of the ordinary ... also that particular optimization is meager in practice (on the order of 1%?). I know everything improvement adds up, but the author talks about it as if it was a game changer. I like the enthusiasm, though :D.

[kllrnohj]

The "ABI now or never" paper suggests somewhere on the order of 5-10%, and that's without considering the escape pessimization. Especially with the rapid expansion of smart pointer usage (and for good reason!).

Given the major selling point of C/C++ is performance, that's not an insignificant amount.