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<body><span class="vcard"><a class="email" href="mailto:richard-llvm@metafoo.co.uk" title="Richard Smith <richard-llvm@metafoo.co.uk>"> <span class="fn">Richard Smith</span></a>
</span> changed
<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Loop is incorrectly optimized away"
href="https://llvm.org/bugs/show_bug.cgi?id=24402">bug 24402</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>NEW
</td>
<td>RESOLVED
</td>
</tr>
<tr>
<td style="text-align:right;">CC</td>
<td>
</td>
<td>richard-llvm@metafoo.co.uk
</td>
</tr>
<tr>
<td style="text-align:right;">Version</td>
<td>3.6
</td>
<td>3.5
</td>
</tr>
<tr>
<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>FIXED
</td>
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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Loop is incorrectly optimized away"
href="https://llvm.org/bugs/show_bug.cgi?id=24402#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Loop is incorrectly optimized away"
href="https://llvm.org/bugs/show_bug.cgi?id=24402">bug 24402</a>
from <span class="vcard"><a class="email" href="mailto:richard-llvm@metafoo.co.uk" title="Richard Smith <richard-llvm@metafoo.co.uk>"> <span class="fn">Richard Smith</span></a>
</span></b>
<pre>I can't reproduce this with trunk, nor 3.6, but it reproduces with 3.5. Looks
like this has been fixed for a while. I remember we had (and fixed) a bug
analyzing loops with an N bit induction variable that perform exactly 2^N
iterations; that could be the bug you hit.</pre>
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