https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81930 Bug 81930 depends on bug 84364, which changed state.
Bug 84364 Summary: [8 Regression] -Weffc++ warns on "return *this" in template after r253599 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84364 What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution|--- |FIXED