[Bug sanitizer/115791] division by zero check missing at optimization levels -O2 and -O3

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115791

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
So fixed for GCC 11.  Note GCC 10.5.0 was the last release of GCC 10.x series
and there will be no other new 10.x.