------- Comment #2 from laurent at komite dot net 2006-04-11 15:06 -------
(In reply to comment #1)
> Overflow flag set problem:
>
> n = -2;
> n.10 = n;
> D.2132 = -080000000 / n.10;
>
> -fwrapv "fixes" the problem. This is a dup of ...
I'm not sure this is just an overflow problem, it might be more general. As
suggested by a friend, I tried the simple example :
int f (int a, int b)
{
return (-a) / (-b);
}
The assembly and `-fdump-tree-all' output show that both negations are removed,
which is incorrect since the input domain is not symmetric wrt 0.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27116
