<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/130604>130604</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            CWG3003: Naming a deducible template for class template argument deduction
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            c++17,
            clang:frontend,
            crash-on-invalid,
            regression:19
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          Endilll
      </td>
    </tr>
</table>

<pre>
    Clang crashes on the following code (https://godbolt.org/z/KcoqrEME7) since 19.1.0:
```cpp
template <typename T> struct A { A(T); };

template <typename T, template <typename> class TT = A>
using Alias = TT<T>;

template <typename T>
using Alias2 = Alias<T>;

void h() { Alias2 a(42); }
void h2() { Alias a(42); }
```

>From https://github.com/cplusplus/CWG/issues/670, https://cplusplus.github.io/CWG/issues/3003.html.
</pre>
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