Re: [PING][PATCH] [modulo-sched] Change the ddg's construction

[Revital1 Eres <ERES@il.ibm.com>]

> > I'll address this in a separate patch which means we currently do not
> > exclude uses that appears inside a REG_EQUAL or REG_EQUIV note; I've
> > added ??? mark to revisit this issue later on.
> >
> > Attached is the patch including the comments.
> >
> > OK to mainline?
> >

> OK.
>
> Instead of checking
> > +          if (INSN_UID (first_def->insn) != INSN_UID (last_def->insn))
> for anti-deps you could simply check
> > +      if (last_def->id == first_def->id)
> as done for output-deps.
>
> Ayal.

I'll check it in with this change.

Revital
>
> > Thanks,
> > Revital

> > 2007-07-30  Revital Eres  <eres@il.ibm.com>
> >
> >         * ddg.c (add_deps_for_def): Rename to...
> >         (add_cross_iteration_register_deps): This.  Change
implementation
> >         to use only reaching def and def-use chains to construct the
> >         inter loop dependencies.
> >         (add_deps_for_use): Remove function.
> >         (build_inter_loop_deps): Call add_cross_iteration_register_deps
> >         function to build the inter loop dependencies.
> >         * modulo-sched.c (sms_schedule): Build only
> >         reaching def and def-use chains for the propose of the ddg
> >         construction.
> >
> > [attachment "patch_ddg_30.txt" deleted by Ayal Zaks/Haifa/IBM]