<html>
    <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 - Frontend crashes passing a function pointer/ref.s to template class constructor"
   href="https://bugs.llvm.org/show_bug.cgi?id=41139">41139</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Frontend crashes passing a function pointer/ref.s to template class constructor
          </td>
        </tr>

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

        <tr>
          <th>Version</th>
          <td>7.0
          </td>
        </tr>

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

        <tr>
          <th>OS</th>
          <td>other
          </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>C++'17
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>yapoo777@gmail.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>blitzrakete@gmail.com, erik.pilkington@gmail.com, llvm-bugs@lists.llvm.org, richard-llvm@metafoo.co.uk
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=21628" name="attach_21628" title="run script">attachment 21628</a> <a href="attachment.cgi?id=21628&action=edit" title="run script">[details]</a></span>
run script

Clang(7.0.1) frontend crashes to compile these constractors. 

//////////
int f1( unsigned ) { return 0; }

/////////
template <class R, class... Args>
struct S1 {
    S1( R(*f)(Args...) ) {}
//     S1( R(&f)(Args...) ) {}
//     S1( R(&&f)(Args...) ) {}
};

//////////
int main() {
    S1 s1( f1 );
 //   F1(f1);
    return 0;
}


invocation command line 
$ clang -std=c++17 a.cpp</pre>
        </div>
      </p>


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