[Bug ipa/70348] [6 Regression][openacc] ICE in visit_ref_for_mod_analysis, at ipa-prop.c

[tschwinge at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70348

Thomas Schwinge <tschwinge at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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           Assignee|unassigned at gcc dot gnu.org      |tschwinge at gcc dot gnu.org

--- Comment #7 from Thomas Schwinge <tschwinge at gcc dot gnu.org> ---
(In reply to Nathan Sidwell from comment #5)
> the intended current implementation is to treat 'sum' as firstprivate.

Not actively looking into that one at the moment, but:

> however, putting in an explicit firstprivate causes another different ICE
> (in  lower_oacc_reductions) -- regardless of whether 'sum' is a parameter,
> or a local (initialized) variable.  Clearly at least two other bugs lurk.

I highly suspect (will test) that ICE to be fixed by patch that I'm currently
preparing for trunk (already fixed on gomp-4_0-branch).

(In reply to Jakub Jelinek from comment #6)
> So, given this is a P1, is anyone working on it?

So, assigning to me for the moment; will then re-evaluate the status after the
ICE's fixed.