<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 - [Flang] [OpenMP] Variables in common blocks may not be inheriting data sharing attributes"
   href="https://bugs.llvm.org/show_bug.cgi?id=50201">50201</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[Flang] [OpenMP] Variables in common blocks may not be inheriting data sharing attributes
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>flang
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>trunk
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>PC
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>All
          </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>Frontend
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>sscalpone@nvidia.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>David.Truby@arm.com, jperier@nvidia.com, kirankumartp@gmail.com, llvm-bugs@lists.llvm.org, sscalpone@nvidia.com
          </td>
        </tr></table>
      <p>
        <div>
        <pre>The variable 'a' ought to inherit threadprivate from the common block.

% cat t.f90
integer(4) :: a
common /c/ a
!$OMP THREADPRIVATE(/c/)
!$OMP PARALLEL DEFAULT(none)
    a  = omp_get_thread_num()
!$OMP END PARALLEL
end

% flang -c -fopenmp t.f90
./t.f90:5:5: error: The DEFAULT(NONE) clause requires that 'a' must be listed
in a data-sharing attribute clause
      a  = omp_get_thread_num()
      ^</pre>
        </div>
      </p>


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