https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107450
--- Comment #1 from Jason Liam <jlame646 at gmail dot com> --- Also if we remove one of the template parameter(say T3) then msvc starts compiling this code as well. Demo: https://godbolt.org/z/qacMzoT3q Additionally, this current bug is most probably a duplicate of: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69623
