https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78989
--- Comment #9 from Martin Sebor <msebor at gcc dot gnu.org> ---
GCC 12 (and prior, down to 10) warns for the test case:
$ cat pr78989.ii && gcc -S -Wall pr78989.ii
int
asan_poison_variables ()
{
return (asan_poison_variables &&
# 6 "gimplify.cpp" 3 4
__null
);
}
pr78989.ii: In function ‘int asan_poison_variables()’:
pr78989.ii:4:10: warning: the address of ‘int asan_poison_variables()’ will
never be NULL [-Waddress]
4 | return (asan_poison_variables &&
| ^~~~~~~~~~~~~~~~~~~~~
pr78989.ii:2:1: note: ‘int asan_poison_variables()’ declared here
2 | asan_poison_variables ()
| ^~~~~~~~~~~~~~~~~~~~~
