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    <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 --- - alignof(function type) should be 1, as per gcc extension"
   href="http://llvm.org/bugs/show_bug.cgi?id=15511">15511</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>alignof(function type) should be 1, as per gcc extension
          </td>
        </tr>

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

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

        <tr>
          <th>Hardware</th>
          <td>All
          </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>unassignedclangbugs@nondot.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>gribozavr@gmail.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>llvmbugs@cs.uiuc.edu, richard-llvm@metafoo.co.uk
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Currently clang implements alignof(function type) to be 4. 
(ASTContext.cpp:1328)

Unfortunately, this differs from the actual gcc behavior.

$ cat /tmp/zz.cc
static_assert(alignof(void(void)) == 1, "alignof(function type) should be 1");
$ g++ -fsyntax-only -std=c++11 /tmp/zz.cc
$

How do we fix this?  The obvious fix is trivial, but consequences could be
subtle, so I filed a bug.</pre>
        </div>
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