[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 #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
int z;
void func(int a, int b, int c, int y){
    z = c  - y  - c + a  + y - b;
}