https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95164
--- Comment #3 from Marek Polacek <mpolacek at gcc dot gnu.org> --- struct H { int a; }; struct I { int c; H b; }; struct E { I d; }; void foo(E); template<typename> void fn () { int a = 42; int &k = a; foo({1, {H{k}}}); }