https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65206
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot
gnu.org
--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
(In reply to Richard Biener from comment #4)
> I'm talking about
>
> (compute_affine_dependence
> stmt_a: _5 = a1[i_16];
> stmt_b: MASK_STORE (_34, 0B, _ifc__32, _9);
> ) -> dependence analysis failed
Ah - this is pointer vs. array access, thus different "base". A generic issue
that can for example be "solved" by trying to force a pointer base for
a non-pointer base DR when analysis fails and one is based on a pointer.
Hmm.
Mine.
> somehow it works for
>
> (compute_affine_dependence
> stmt_a: _8 = MASK_LOAD (_33, 0B, _ifc__32);
> stmt_b: MASK_STORE (_35, 0B, _ifc__36, _11);
> (analyze_overlapping_iterations
> (chrec_a = {0B, +, 4}_1)
> (chrec_b = {0B, +, 4}_1)
> (overlap_iterations_a = [0])
> (overlap_iterations_b = [0]))
> )
