[Bug middle-end/114700] Front-end optimization generates wrong code with -ftrapv.

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114700

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Gcc's trapv is known not always to work correctly.

Try -fsanitize=undefined instead.