https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78032
Patrick Oppenlander <patrick at motec dot com.au> changed: What |Removed |Added ---------------------------------------------------------------------------- Known to work| |5.3.0 Known to fail| |5.4.0 --- Comment #1 from Patrick Oppenlander <patrick at motec dot com.au> --- 5.3.0 correctly diagnoses the invalid program. 5.4.0 also compiles incorrectly without error or warning.