On 07/27/2018 02:38 PM, Marc Glisse wrote:
> On Fri, 27 Jul 2018, Martin Liška wrote:
>
>> So answer is yes, the builtin can be then removed.
>
> Good, thanks. While looking at how widely it is going to apply, I noticed
> that the default, throwing operator new has attribute malloc and everything,
> but the non-throwing variant declared in <new> doesn't, so it won't benefit
> from the new predictor. I don't know if there is a good reason for this
> disparity...
>
Well in case somebody uses operator new:
int* p1 = new int;
if (p1)
delete p1;
we optimize out that to if (true), even when one has used defined
operator new. Thus it's probably OK.
Martin
