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<body><span class="vcard"><a class="email" href="mailto:Florian.Hahn@arm.com" title="Florian Hahn <Florian.Hahn@arm.com>"> <span class="fn">Florian Hahn</span></a>
</span> changed
<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Loop Unswitch : Preserve dominator info incrementally"
href="https://llvm.org/bugs/show_bug.cgi?id=2744">bug 2744</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>Florian.Hahn@arm.com
</td>
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<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 Unswitch : Preserve dominator info incrementally"
href="https://llvm.org/bugs/show_bug.cgi?id=2744#c10">Comment # 10</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Loop Unswitch : Preserve dominator info incrementally"
href="https://llvm.org/bugs/show_bug.cgi?id=2744">bug 2744</a>
from <span class="vcard"><a class="email" href="mailto:Florian.Hahn@arm.com" title="Florian Hahn <Florian.Hahn@arm.com>"> <span class="fn">Florian Hahn</span></a>
</span></b>
<pre>It looks like this isn't a problem any longer, -ftime-report reports the
following for loop unswitching:
-O2:
0.0030 ( 0.1%) 0.0000 ( 0.1%) 0.0031 ( 0.1%) 0.0031 ( 0.1%)
Unswitch loops
-O3:
0.0094 ( 0.4%) 0.0001 ( 0.2%) 0.0095 ( 0.4%) 0.0095 ( 0.4%)
Unswitch loops</pre>
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