On 11/15/06, Daniel Berlin <dberlin@dberlin.org> wrote:
> On 11/14/06, Sashan Govender <sashang@gmail.com> wrote:
> > Hi
> >
> > I was looking at the vectorizer
> > (http://gcc.gnu.org/projects/tree-ssa/vectorization.html) and noticed
> > that in section 6 it says that there is no data dependence graph
> > implemented. Also had a search throught the mailing list archives and
> > noticed that although ddg.c exists its not used much?
> > (http://gcc.gnu.org/ml/gcc/2005-09/msg00661.html). A grep for
> > creat_ddg shows it's used in modulo-sched.c. So is this fertile ground
> > for something to be implemented? Is it worth implementing a ddg graph
> > for the vectorizer?
>
> What exactly do you hope to gain by building a ddg?
> If you have some algorithm that can take advantage of a ddg, sure, build one.
>
No algorithm in particular - I thought someone else might find it
useful (which is why I asked).