On Saturday 25 July 2015 09:50:06 René J. V. Bertin wrote:
> > Because it can't be disabled in the compiler. It *always* generates those
> > instructions.
>
> ...
>
> > That's incorrect. SSE4.2 is enabled in your compiler because you're using
> > Apple's build of Clang.
>
> I don't think it's as
Thiago Macieira wrote:
>> > For Clang, QT_COMPILER_SUPPORTS_HERE(x) expands to a check defined(__x__)
>> > [in this case, if __SSE4_2__ is defined].
...
>
> __SSE4_2__ isn't defined anywhere you'll see. It's pre-defined by the
> compiler.
Well yes of course, I know that. I meant the declaration
