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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 - ICE: is_invocable_v (access via :: of non static member)"
   href="https://bugs.llvm.org/show_bug.cgi?id=47119">47119</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>ICE: is_invocable_v (access via :: of non static member)
          </td>
        </tr>

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

        <tr>
          <th>Version</th>
          <td>trunk
          </td>
        </tr>

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

        <tr>
          <th>OS</th>
          <td>Windows NT
          </td>
        </tr>

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

        <tr>
          <th>Severity</th>
          <td>enhancement
          </td>
        </tr>

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

        <tr>
          <th>Component</th>
          <td>C++
          </td>
        </tr>

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

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

        <tr>
          <th>CC</th>
          <td>blitzrakete@gmail.com, dgregor@apple.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=23840" name="attach_23840" title="compiler output">attachment 23840</a> <a href="attachment.cgi?id=23840&action=edit" title="compiler output">[details]</a></span>
compiler output

Clang++ front-end crashes with the following code:

Compilation command: clang++ -std=c++17 sample.cpp

See here on godbolt: <a href="https://godbolt.org/z/o1xjK8">https://godbolt.org/z/o1xjK8</a>

Code:
=================
```
#include <type_traits>

struct S {
    void Func() {
    }
};

#include <iostream>
int main()
{
    auto lambda = [](const auto& cls) -> decltype(
        std::remove_const_t<std::remove_reference_t<decltype(cls)>>::Func()
    ) {};

    auto isInv = std::is_invocable_v<decltype(lambda), S>;
    if (!isInv){
        std::cout << "detected correctly";
    }
    return 0;
}
```</pre>
        </div>
      </p>


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