http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60100
--- Comment #10 from lavr at ncbi dot nlm.nih.gov --- > I guess also a dup of PR57201. While I can agree these cases (and the one mentioned within PR57201) look similar, the gravity of the disappearing warning in case of a mismatched type is more severe than an unused variable or no-effect code...