2013/6/4 Jeff Law <l...@redhat.com>:
> On 06/03/2013 08:23 AM, Kai Tietz wrote:
>>
>>
>> Btw there is one optimization in this context which might be something
>> worth here too.
>> -X -> X for 1-bit typed X (signed doesn't matter here).
>
> I've had a hell of a time trying to trigger a case where this isn't already
> handled. Samples welcome.
A sample for this is
typedef struct onebit {
unsigned int i : 1;
} onebit;
_Bool boo (onebit a, onebit b, onebit c)
{
onebit i1, i2;
i1.i = a.i + b.i;
i2.i = a.i + c.i;
i1.i -= i2.i;
i1.i -= b.i;
return i1.i;
}
Kai
