Re: [Starpu-devel] GCC plugin and registering address of scalar

[Mehdi AMINI <mehdi.amini@silkan.com>]

Le 15/06/2012 11:33, Ludovic Courtès a écrit :
> Mehdi AMINI<mehdi.amini@silkan.com>  skribis:
>
> > I'm generating code automatically using StarPU as a backend. Sometimes
> > an integer can be produced and its value used later, in a different
> > task. Sometimes it just that I don't know if its value will be used
> > later and I have to pass it to the task by reference.
> > I'll go for the int a[1]; solution :-)
>
> Note that something like this works:
>
>      int xx;
>    #pragma starpu register &xx 1
>
> (Ideally, one should be able to omit the “1”, though.)


Mmmmmm, I thought it was what I tested, but I probably made an unrelated 
syntax error when I tested it, I had a message like  "erreur: ‘xx’ is 
neither a pointer nor an array", it seems to work actually :-)

BTW are you sure for the 1 ?

I would produce a code like :

  int size_of_int = sizeof(int);
#pragma starpu register &xx size_of_int


Mehdi