On Tue, Jan 27, 2026 at 09:54:59AM +0100, Richard Biener wrote:
> > OK with the goacc testcases adjusted? OK to simply remove the
> > dg-note line or should I XFAIL it?
>
> Ping. Any opinion?
>
> > Thanks,
> > Richard.
> >
> > PR tree-optimization/123651
> > * tree-ssa-uninit.cc (warn_uninit): Treat DECL_ARTIFICIAL
> > var as if it were not present.
> >
> > * g++.dg/warn/Wuninitialized-pr123651.C: New testcase.
I think the current state (warning only for -g) is better than not warning
at all. Yes, we can't provide details on what exactly is wrong, it is more
something here is uninitialized, but still.
Not warning about DECL_ARTIFICIAL vars will mean we won't discover other
problems (we've had various PRs where DECL_ARTIFICIAL TARGET_EXPR slots
ended up due to FE bugs uninitialized or being used before initialization
and most of those issues were reported through -W*uninitialized first.
Jakub
