[PATCH][RFC]Overloading intrinsics

[Martin Liška]

On 11/1/18 8:40 PM, Thomas Koenig wrote:
> Hi Martin,
> 
>> module vector_math
>> Â Â  interface
>> Â Â Â Â  elemental function sin(arg)
>> Â Â Â Â Â Â  !GCC$ attributes simd_notinbranch :: sin
>> Â Â Â Â Â Â  real, intent(in) :: arg
>> Â Â Â Â Â Â  real :: sin
>> Â Â Â Â  end function sin
>> Â Â  end interface
>> end module
> 
> I'm glad that this project we discussed at the GNU Cauldron is
> moving forward!

Hello.

Agree with that. So far I've been provided very nice guidance and
I hope we can get it into GCC 9.1.

> 
> Regarding the syntax: I am not sure that using an external function
> and then trying to coerce it to an intrinsic is something that is
> easily or cleanly done (as you yourself noted).
> 
> Would it be possible to use something like
> 
> module x
>  Â  !GCC$ attributes simd_notinbranch, real(4) :: sin
>  Â  !GCC$ attributes simd_notinbranch, real(8) :: sin
> end module x
> 
> Attribute parsing might have to be extended a little, but
> this would create one clear point where to create the
> specific version of the library routine.
> 
> What do you think?

Sounds reasonable for me, I can play with the idea tomorrow.

Thank you,
Martin

> 
> Regards
> 
>  Â Â Â Â Thomas