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    <body><span class="vcard"><a class="email" href="mailto:su@cs.ucdavis.edu" title="Zhendong Su <su@cs.ucdavis.edu>"> <span class="fn">Zhendong Su</span></a>
</span> changed
              <a class="bz_bug_link 
          bz_status_REOPENED "
   title="REOPENED --- - Clang warns unused volatile global variable"
   href="http://llvm.org/bugs/show_bug.cgi?id=18529">bug 18529</a>
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             <table border="1" cellspacing="0" cellpadding="8">
          <tr>
            <th>What</th>
            <th>Removed</th>
            <th>Added</th>
          </tr>

         <tr>
           <td style="text-align:right;">Status</td>
           <td>RESOLVED
           </td>
           <td>REOPENED
           </td>
         </tr>

         <tr>
           <td style="text-align:right;">Resolution</td>
           <td>INVALID
           </td>
           <td>---
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            <b><a class="bz_bug_link 
          bz_status_REOPENED "
   title="REOPENED --- - Clang warns unused volatile global variable"
   href="http://llvm.org/bugs/show_bug.cgi?id=18529#c7">Comment # 7</a>
              on <a class="bz_bug_link 
          bz_status_REOPENED "
   title="REOPENED --- - Clang warns unused volatile global variable"
   href="http://llvm.org/bugs/show_bug.cgi?id=18529">bug 18529</a>
              from <span class="vcard"><a class="email" href="mailto:su@cs.ucdavis.edu" title="Zhendong Su <su@cs.ucdavis.edu>"> <span class="fn">Zhendong Su</span></a>
</span></b>
        <pre><span class="quote">> Warnings are also not part of the standard, they're best-effort attempts to
> describe potential problems in your program.</span >

But IMHO this doesn't seem like a best-effort attempt for the reported testcase
as it's a very clear unused volatile global variable. It feels more like an
overlooked case.</pre>
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