<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 - False positive#pragma visibility pop with no matching #pragma visibility push"
   href="https://bugs.llvm.org/show_bug.cgi?id=51822">51822</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>False positive#pragma visibility pop with no matching #pragma visibility push
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>clang-tools-extra
          </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>clangd
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>peter@eisenlohr.org
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>llvm-bugs@lists.llvm.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>We are receiving false positives from clangd:

  #pragma visibility pop with no matching #pragma visibility push

Minimal testcase that reproduces this:

  #pragma GCC visibility push(default)
  namespace xyz {}
  #pragma GCC visibility pop

Instead of the namespace, any other declaration I tried resulted in the same
problem. Only if there is no other C++ code between the push and pop, the
message disappears.

It seems this only happens with clangd. I tried to write a testcase for this by
modifying one of the tests in clang-tools-extra/test/clang-tidy, but the
problem doesn't show there. I'm not sure how to write a clangd-testcase for
this, so I'm here just reporting this.

This happens with pre-build clangd as well as with custom builds of 12.x, 13.x
and main branches.</pre>
        </div>
      </p>


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