<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/122020>122020</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            Multiple IntelliSense errors when using Clang LLVM >=19.1.0 in Visual Studio 2022
        </td>
    </tr>

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

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

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

<pre>
    hello there, I was using version 18.1.0 and I didn't have any intellisense errors, but with the new version I only get intellisense errors and there are many, most of them are undefined intrinsic functions, no build errors (my project builds successfully)

some of the errors I get (2k intellisense errors in total):
![Image](https://github.com/user-attachments/assets/e2d2b697-a523-4e06-8084-4dc441c9c988)
</pre>
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