<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 9 crashes while building the ATLAS offline software"
   href="https://bugs.llvm.org/show_bug.cgi?id=45042">45042</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Clang 9 crashes while building the ATLAS offline software
          </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>normal
          </td>
        </tr>

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

        <tr>
          <th>Component</th>
          <td>C++
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>attila.krasznahorkay@cern.ch
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>blitzrakete@gmail.com, dgregor@apple.com, erik.pilkington@gmail.com, llvm-bugs@lists.llvm.org, richard-llvm@metafoo.co.uk
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=23179" name="attach_23179" title="Collection of the files generated by clang, and the full printed output from the compilation command">attachment 23179</a> <a href="attachment.cgi?id=23179&action=edit" title="Collection of the files generated by clang, and the full printed output from the compilation command">[details]</a></span>
Collection of the files generated by clang, and the full printed output from
the compilation command

While trying to build the ATLAS Offline Software
(<a href="https://gitlab.cern.ch/atlas/athena">https://gitlab.cern.ch/atlas/athena</a>) using Clang 9, we ran into a number of
compilation issues. :-(

<a href="http://atlas-computing.web.cern.ch/atlas-computing/links/distDirectory/gitwww/GITWebArea/nightlies/master/index.x86_64-centos7-clang9-opt.html">http://atlas-computing.web.cern.ch/atlas-computing/links/distDirectory/gitwww/GITWebArea/nightlies/master/index.x86_64-centos7-clang9-opt.html</a>

You can find the output from one of the failed compilation commands here for
instance:

<a href="http://atlas-computing.web.cern.ch/atlas-computing/links/distDirectory/gitwww/GITWebArea/nightlies/master/2020-02-26T2110/Athena/x86_64-centos7-clang9-opt/Athena/Control.RootUtils.log.html">http://atlas-computing.web.cern.ch/atlas-computing/links/distDirectory/gitwww/GITWebArea/nightlies/master/2020-02-26T2110/Athena/x86_64-centos7-clang9-opt/Athena/Control.RootUtils.log.html</a>

I.e. the compilation on
<a href="https://gitlab.cern.ch/atlas/athena/blob/master/Control/RootUtils/src/pyroot/Converters.cxx">https://gitlab.cern.ch/atlas/athena/blob/master/Control/RootUtils/src/pyroot/Converters.cxx</a>
dies with a pretty long stack trace.

Unfortunately my expertise with such issues with very limited, so I'm just
following the instructions from the crash, and posting the files produced
during the failed build, with a text file holding the full printed output from
the crashed build command.

Cheers,
          Attila</pre>
        </div>
      </p>


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