[Bug sanitizer/117959] New: Address Sanitizer misses 'global-buffer-overflow' for a[-1]

[652023330028 at smail dot nju.edu.cn via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117959

            Bug ID: 117959
           Summary: Address Sanitizer misses 'global-buffer-overflow' for
                    a[-1]
           Product: gcc
           Version: 15.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: sanitizer
          Assignee: unassigned at gcc dot gnu.org
          Reporter: 652023330028 at smail dot nju.edu.cn
                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
  Target Milestone: ---

For the following code (https://godbolt.org/z/4zrPdT777), GCC's ASan seems to
have missed 'global-buffer-overflow' (a[-1] at line 4):

int a[1];
int b;
int main() {
    b=a[-1];
}

There is no report from AddressSanitizer.