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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 --- - -Wcast-align doesn't special case char*"
   href="http://llvm.org/bugs/show_bug.cgi?id=18711">18711</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>-Wcast-align doesn't special case char*
          </td>
        </tr>

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

        <tr>
          <th>Version</th>
          <td>3.4
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Other
          </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>htam@apple.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 foo.c
void foo(char* bar) {
    *(int*)(bar + 4) = 7;
}

$ clang foo.c -c -o /dev/null -Wcast-align
foo.c:2:6: warning: cast from 'char *' to 'int *' increases required alignment
     from 1 to 4 [-Wcast-align]
   *(int*)(bar + 4) = 7;
    ^~~~~~~~~~~~~~~
1 warning generated.

The -Wcast-align warning should not be generated by casts from char*, since it
is magical and often points to things that are not remotely related to char.</pre>
        </div>
      </p>
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