[Bug c/29968] integer division by zero with optimization

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=29968

--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Vincent Lefèvre from comment #4)
> (In reply to Andreas Schwab from comment #2)
> > Your program is invoking undefined behaviour.  You should not perform the
> > division if the divisor is zero.
> 
> But PR109578 Comment 1 says that side effects should be visible before
> undefined behavior occurs. Thus this bug should be reopened.

Except it can no longer reproduce it so the issue has been fixed a long time
ago.