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      <base href="https://bugs.llvm.org/">
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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - CallAndMessageChecker would infinite loop"
   href="https://bugs.llvm.org/show_bug.cgi?id=48430">48430</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>CallAndMessageChecker would infinite loop
          </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>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>Static Analyzer
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>dcoughlin@apple.com
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>danny_shanyu@outlook.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>dcoughlin@apple.com, llvm-bugs@lists.llvm.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=24245" name="attach_24245" title="Preprocessed source file to reproduce the error.">attachment 24245</a> <a href="attachment.cgi?id=24245&action=edit" title="Preprocessed source file to reproduce the error.">[details]</a></span>
Preprocessed source file to reproduce the error.

The CallAndMessageChecker might get into infinite loop at
'generateVisitorsDiagnostics' function in 'BugReporter.cpp' due to a loop in
the errorNode graph.

I have attached a demo code that could reproduce this error. You could
reproduce the error by running clang static analyzer on the code with
'core.CallAndMessage' checker. I am unsure what causes errorNode graph to
contain a loop. Might be the function that passes right-value reference?</pre>
        </div>
      </p>


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