<html>
    <head>
      <base href="http://llvm.org/bugs/" />
    </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-cl: cannot compile this non-trivial argument copy for thunk yet"
   href="http://llvm.org/bugs/show_bug.cgi?id=20348">20348</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>clang-cl: cannot compile this non-trivial argument copy for thunk yet
          </td>
        </tr>

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

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

        <tr>
          <th>Reporter</th>
          <td>ehsan@mozilla.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>llvmbugs@cs.uiuc.edu
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr></table>
      <p>
        <div>
        <pre>$ cat js-ipc3.cc
class ObjectVariant {
  ~ObjectVariant();
};
class A {
 virtual void m_fn1(ObjectVariant);
};
class B : virtual A {
  B();
  void m_fn1(ObjectVariant);
};
void B::m_fn1(ObjectVariant) {}

$ clang-cl -c js-ipc3.cc -m32
js-ipc3.cc(11,28) :  error: cannot compile this non-trivial argument copy for
thunk yet
void B::m_fn1(ObjectVariant) {}
                           ^
1 error generated.</pre>
        </div>
      </p>
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