[Bug c++/93320] internal compiler error: in is_base_type, at dwarf2out.c:12987

[ldalessandro at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93320

Luke Dalessandro <ldalessandro at gmail dot com> changed:

           What    |Removed                     |Added
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                 CC|                            |ldalessandro at gmail dot com

--- Comment #8 from Luke Dalessandro <ldalessandro at gmail dot com> ---
I'm still seeing failures on this line in 12/trunk with the following invalid
code with std=c++17, **but not with -std=c++20**. Don't think architecture is
important.

```
struct A {
    A(decltype(auto)... xs) {}
};
```

https://godbolt.org/z/neKc1M6sd