[PATCH, gfortran] Re: Cray Pointers
Andrew Pinski
pinskia@physics.uc.edu
Fri Aug 12 19:49:00 GMT 2005
>
> At 9:15 PM +0200 8/12/05, Thomas Koenig wrote:
> >Asher Langton wrote:
> >
> >> The trouble occurs when a
> >> pointee and an object that it aliases are both used in the same part
> >> of the program.
> >
> >Would it make sense to declare a pointee as a target, i.e.
> >set TREE_ADDRESSABLE on it?
>
> With our implementation (which we've designed with the goal of being
> consistent with the existing implementations), I don't think that
> would help. All of the pointee translations are purely front-end.
> Here's an example, with the GENERIC output. Note that the pointee p
> is not in the GENERIC tree:
>
> % cat ex3.f90
> program ex3
> real t
> real p
> pointer (ipt, p)
> ipt = loc(t)
> p = 1.0
> end program ex3
>
> % cat ex3.f90.t02.original
> MAIN__ ()
> {
> real4 t;
> int8 ipt;
>
> {
> <unnamed type> D.805;
>
> D.805 = (<unnamed type>) (int8) &t;
> ipt = (int8) D.805;
> }
> *(real4 *) ipt = 1.0e+0;
> }
can you use "void*" instead when you have a pointer?
-- Pinski
More information about the Gcc-patches
mailing list