https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118918
Xi Ruoyao <xry111 at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |xry111 at gcc dot gnu.org
--- Comment #4 from Xi Ruoyao <xry111 at gcc dot gnu.org> ---
Note that GCC perfectly detects the issue at -O2 -Wall:
In function 'c',
inlined from 'j' at t.c:23:11:
t.c:12:23: warning: using a dangling pointer to an unnamed temporary
[-Wdangling-pointer=]
12 | unsigned g = d / e[f];
| ~^~~
t.c: In function 'j':
t.c:7:17: note: unnamed temporary defined here
7 | e = (long[]){2};
| ^
Note that -O0 -Wall produces no warning does *NOT* mean it's "fine" with -O0.
-O0 does not mean "allow me to write invalid code."
