[Bug middle-end/111821] [11/12/13/14 Regression] OOM with packed struct and stack variable with copy

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111821

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2023-10-15
     Ever confirmed|0                           |1

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
here is a testcase where it happens at -O1 and above (and not just -Og):
```
typedef union { char a[1003263430]; }
__attribute__((__packed__)) T;
unsigned short f(const void *p) {
    unsigned short v;
    *(T *)(void *)(&v) = *(const T *)p;
    return v;
}

```

Confirmed.