https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80949
--- Comment #3 from Marek Polacek <mpolacek at gcc dot gnu.org> --- This is x86_64-pc-linux-gnu. I tried various combinations of the above options but I'm always seeing some errors. Perhaps it would be possible to isolate the function where the crash occurs and thus get rid of target-dependent stuff? I'd be interested in seeing a better backtrace, too.