<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/97426>97426</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            clang-tidy SEGFAULT on bugprone-unchecked-optional-access
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            clang-tidy
      </td>
    </tr>

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

    <tr>
      <th>Reporter</th>
      <td>
          andy31415
      </td>
    </tr>
</table>

<pre>
    I have somewhat template-heavy C++ source file that uses std::optional among other things. I seem to get a segfault on clang-tidy 18.1.3.

Stack trace attached.

[tidy_segfault_trace.txt](https://github.com/user-attachments/files/16070777/tidy_segfault_trace.txt)

</pre>
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