<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 - clang crashes when load my ModulePass"
   href="https://bugs.llvm.org/show_bug.cgi?id=44817">44817</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>clang crashes when load my ModulePass
          </td>
        </tr>

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

        <tr>
          <th>Version</th>
          <td>9.0
          </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>enhancement
          </td>
        </tr>

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

        <tr>
          <th>Component</th>
          <td>-New Bugs
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>pcy190@126.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>htmldeveloper@gmail.com, llvm-bugs@lists.llvm.org, neeilans@live.com, richard-llvm@metafoo.co.uk
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=23104" name="attach_23104" title="The crash backtrace and error log of clang output">attachment 23104</a> <a href="attachment.cgi?id=23104&action=edit" title="The crash backtrace and error log of clang output">[details]</a></span>
The crash backtrace and error log of clang output

When I load my pass with empty runOnModule which outs<<"status" only, the pass
and clang work well. But when I iterator the Module object or use any
attributes of Modules, the clang crashes.

I just attach the crash error log and my code.
Following the crash clang output instructions, I submit this bug.

I compile the llvm 9.0.0 source and test it under Ubuntu18.04 x64 platform.</pre>
        </div>
      </p>


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