https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112288
--- Comment #4 from Fabio Alemagna <falemagn at gmail dot com> --- (In reply to Marek Polacek from comment #2) > Confirmed. Started with r6-6830-g20a0c6f9bdbd78: > > commit 20a0c6f9bdbd781ed5d413a10a06764a174dc394 > Author: Patrick Palka <ppa...@gcc.gnu.org> > Date: Mon Feb 8 23:02:50 2016 +0000 > > Fix PR c++/69283 (auto deduction fails when ADL is required) > > but reverting that fix doesn't make the ICE go away. That seems waaaay to old to be the cause of the issue. As said, it works with v13.2.1
