https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104901
--- Comment #11 from Segher Boessenkool <segher at gcc dot gnu.org> ---
$ cat vcc.c
int f(int x) { return x == 31 && x == 42; }
-Wlogical-op gives
vcc.c: In function 'f':
vcc.c:1:31: warning: logical 'and' of mutually exclusive tests is always false
[-Wlogical-op]
1 | int f(int x) { return x == 31 && x == 42; }
| ^~
The mm_malloc.h code does not warn here (neither -m32 nor -m64 does).
