[Bug c++/115586] c++26: with 2 or more name-independent declarations (anonymous structure bindings) with for loop

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115586

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2024-06-22
            Summary|name-independent            |c++26: with 2 or more
                   |declarations causing an     |name-independent
                   |internal compiler error     |declarations (anonymous
                   |(c++26)                     |structure bindings) with
                   |                            |for loop
                 CC|                            |pinskia at gcc dot gnu.org
             Status|UNCONFIRMED                 |NEW
           Keywords|                            |ice-on-valid-code
     Ever confirmed|0                           |1

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Confirmed.
Reduced testcase:
```
struct f
{
        int a;
        int b;
        int c;
};

int main() {
    f in1[4];
    //auto [_, _, b] = in1[0];

    for (auto [_, _, a] : in1) { }
}
```

Note if uncomment the other name-independent declaration, we get a slightly
different ICE:
<source>:12:34: internal compiler error: in pop_local_binding, at
cp/name-lookup.cc:2655