> https://godbolt.org/g/IQ0O06 https://godbolt.org/g/IQ0O06 (And, of course, the entire main() disappears on -O1 and above: https://godbolt.org/g/FAWtak. http

> https://godbolt.org/g/IQ0O06 https://godbolt.org/g/IQ0O06 (And, of course, the entire main() disappears on -O1 and above: https://godbolt.org/g/FAWtak. https://godbolt.org/g/FAWtak.)