https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66606
--- Comment #1 from Martin Sebor <msebor at gcc dot gnu.org> ---
One other observation (and actually the reason why I found this problem) is
that the diagnostic GCC issues for the call to main in bar:
int bar () { return main (); }
is misleading. The operand of the return statement is a call to main, not an
ADDR_EXPR. (It just happens to be easy to handle both in cp_build_addr_expr_1
because it doesn't distinguish between the two.) The Clang diagnostic doesn't
suffer from the same problem (and so can be used in all other contexts.)
