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    <head>
      <base href="https://bugs.llvm.org/">
    </head>
    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - compile crash on template template"
   href="https://bugs.llvm.org/show_bug.cgi?id=49951">49951</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>compile crash on template template
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>clang
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>unspecified
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>PC
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Linux
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>-New Bugs
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>unassignedclangbugs@nondot.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>schaumb@gmail.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>htmldeveloper@gmail.com, llvm-bugs@lists.llvm.org, neeilans@live.com, richard-llvm@metafoo.co.uk
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=24749" name="attach_24749" title="stderr/stdout">attachment 24749</a> <a href="attachment.cgi?id=24749&action=edit" title="stderr/stdout">[details]</a></span>
stderr/stdout

Reproduction test case

Clang segfaults on the following code snippet:
```
template<typename T,
    template<T> class SType,
    template<T, template<T> class> class TT>
void fun() {
    TT<T{}, SType>{};
}
```


<a href="https://wandbox.org/permlink/lU7e5aeViujWSRnD">https://wandbox.org/permlink/lU7e5aeViujWSRnD</a>


Probably related?
<a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - segfault when dependent template specialization type naming nested template has a template template parameter as a template argument"
   href="show_bug.cgi?id=36852">https://bugs.llvm.org/show_bug.cgi?id=36852</a></pre>
        </div>
      </p>


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