https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110676

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|builtin optimization        |strlen of array[1] should
                   |prevents ASan from          |not be optimized to 1 if
                   |detecting OOB reads         |using ASAN
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2023-07-15

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Confirmed.  It is only an array of size 1 which is going to cause this issue.

array of size 2 is always fine, e.g.:
```
#include <string.h>

int main(void)
{
        char s[2] = "AA";
        return strlen(s);
}

```

gives the expected error message.

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