https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125478
Robin Dapp <rdapp at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed| |2026-06-02
Status|UNCONFIRMED |ASSIGNED
Ever confirmed|0 |1
--- Comment #3 from Robin Dapp <rdapp at gcc dot gnu.org> ---
(In reply to Sujay Kothadiya from comment #2)
> Following the suggestion to use -fno-vect-cost-model, I re-ran the bisection.
>
> I found this first bad commit:
> g:638320686c462e7fcdd4e7b3d49d090ac480bd18
>
>
> With this flag, the issue can be reproduced earlier than previously
> observed, which is consistent with the earlier observation that the
> previously identified commit may only have affected vectorization costing.
Thanks for the bisection. I suspect this is still not the root cause but just
exposes a deeper issue. I'll have a look, but likely not very soon.