[Bug middle-end/111806] g++ generates better code for variant at -Os compared to -O3

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111806

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
The difference is -O2 duplicates the return which might speed up things.
This happens during bb reorder due to estimates of the bb counts.