https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82802
Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2017-11-02
CC| |dodji at gcc dot gnu.org,
| |dvyukov at gcc dot gnu.org,
| |jakub at gcc dot gnu.org,
| |kcc at gcc dot gnu.org,
| |marxin at gcc dot gnu.org,
| |mpolacek at gcc dot gnu.org
Component|c |sanitizer
Target Milestone|--- |6.5
Ever confirmed|0 |1
--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
Confirmed, there's small reproducer:
$ cat pr82802.c
int main()
{
int *high = 0x80007800;
int *low = 0x70018AAB;
return high - low;
}
$ gcc pr82802.c -fsanitize=undefined -m32 && ./a.out
pr82802.c: In function ‘main’:
pr82802.c:3:15: warning: initialization makes pointer from integer without a
cast [-Wint-conversion]
int *high = 0x80007800;
^~~~~~~~~~
pr82802.c:4:14: warning: initialization makes pointer from integer without a
cast [-Wint-conversion]
int *low = 0x70018AAB;
^~~~~~~~~~
pr82802.c:6:15: runtime error: signed integer overflow: -2147452928 -
1879149227 cannot be represented in type 'int'
