core.intrinsics

[Andrei Alexandrescu via Digitalmars-d]

On 10/14/2016 07:51 AM, Johan Engelen wrote:
> On Friday, 14 October 2016 at 11:17:55 UTC, Andrei Alexandrescu wrote:
>> On 10/14/2016 05:24 AM, Johan Engelen wrote:
>>> I like "hints".
>>
>> How many other hints are out there? -- Andrei
>
> Things that come to mind:
> - this value is probably X  (bool, int, pointer)

These would be all covered by __builtin_expect or similar.

> - this type is probably Y
> - this function is likely hot/cold (UDA)
> - this data is likely to be accessed soon (_could_ lead to a prefetch)
> - this member field is hot/cold (iirc, Class members may be re-ordered)
> (UDA)

Any of these present in existing implementations?


Andrei