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    <body><span class="vcard"><a class="email" href="mailto:rnk@google.com" title="Reid Kleckner <rnk@google.com>"> <span class="fn">Reid Kleckner</span></a>
</span> changed
              <a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED FIXED - LLVM no longer honours -stack-alignment=4"
   href="https://llvm.org/bugs/show_bug.cgi?id=21435">bug 21435</a>
        <br>
             <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>NEW
           </td>
           <td>RESOLVED
           </td>
         </tr>

         <tr>
           <td style="text-align:right;">Resolution</td>
           <td>---
           </td>
           <td>FIXED
           </td>
         </tr></table>
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        <div>
            <b><a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED FIXED - LLVM no longer honours -stack-alignment=4"
   href="https://llvm.org/bugs/show_bug.cgi?id=21435#c24">Comment # 24</a>
              on <a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED FIXED - LLVM no longer honours -stack-alignment=4"
   href="https://llvm.org/bugs/show_bug.cgi?id=21435">bug 21435</a>
              from <span class="vcard"><a class="email" href="mailto:rnk@google.com" title="Reid Kleckner <rnk@google.com>"> <span class="fn">Reid Kleckner</span></a>
</span></b>
        <pre>(In reply to <a href="show_bug.cgi?id=21435#c23">comment #23</a>)
<span class="quote">> Performance was never my worry here.  Even with the crash fixed, it makes
> sense for us to continue using frame pointer.  My main concern was the crash.

> So it looks you can resolve this bug after all!</span >

OK, thanks for looking into it.

I think we'll mark this fixed then. If someone runs into the performance issue,
there are tons of workarounds: pass -fno-omit-frame-pointer, -mstackrealign,
-mstack-alignment=32, or whatever. Those all use a different codepath from
TargetOptions::StackAlignmentOverride, and should avoid the unaligned loads.</pre>
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