[Bug c++/120766] [12/13/14/15/16 Regression] ICE Segmentation fault with duplicate extern variable of template type

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120766

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
   Target Milestone|---                         |12.5
   Last reconfirmed|                            |2025-06-23
      Known to work|                            |11.3.0
      Known to fail|                            |11.4.0, 12.1.0
             Status|UNCONFIRMED                 |NEW
            Summary|ICE Segmentation fault with |[12/13/14/15/16 Regression]
                   |duplicate extern variable   |ICE Segmentation fault with
                   |of template type            |duplicate extern variable
                   |                            |of template type

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Reduced to:
```
template<typename _Tp>
void foo()
{
    extern _Tp * new_r;
    extern _Tp * new_r;
}

```