[Bug tree-optimization/115225] [11/12/13/14 Regression] signed integer overflow check missing with optimization

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115225

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
The code is all dead. I can't remember for sure but I this is correct behavior
as the undefined code has no effects seen at all.