https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111591
Kewen Lin <linkw at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Assignee|unassigned at gcc dot gnu.org |linkw at gcc dot gnu.org
Status|NEW |ASSIGNED
--- Comment #15 from Kewen Lin <linkw at gcc dot gnu.org> ---
(In reply to Richard Biener from comment #14)
> (In reply to Kewen Lin from comment #13)
> > Thanks again for the reduced test case and the information!
> >
> > I tried to bisect it but encountered some build failures on _Float32 error
> > etc., through grepping the log I switched to start from r13-2887 (good) to
> > r13-7206 (bad).
> >
> > The bisection shows the culprit commit is r13-3378-gf6c168f8c06047 which was
> > backported to GCC-12, it seems to match the observation new gcc-12 fail
> > while gcc-11 pass.
>
> Note this change likely triggers a latent issue but it might help analyzing
> the issue.
Thanks for the hint! Yeah, I tried -fdisable-tree-esra and -fdisable-tree-sra,
the failure is still there, I supposed that commit only takes effect when SRA
is enabled. I'll continue to investigate it. btw, I'm just starting two weeks
vacation so may respond slowly.
