https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94788
--- Comment #9 from Jürgen Reuter <juergen.reuter at desy dot de> --- (In reply to Thomas Koenig from comment #8) > I'd like to understand what went wrong here... I suspect that > the fix exposed another bug somewhere :-( > > Is it possible to isolate a test case like that? If that is > the offending patch, I think it is probably about a pointer to a > variable of a derived type, either via a function or as > an argument (look at the test case to see what the patch > fixes). I'm on the way to condense the reproducer. At latest tomorrow you will get it. I really hope we get this fixed before the gcc 10 release.