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<base href="https://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - __builtin_sqrtf vs sqrtf and vectorization"
href="https://llvm.org/bugs/show_bug.cgi?id=27108">27108</a>
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<tr>
<th>Summary</th>
<td>__builtin_sqrtf vs sqrtf and vectorization
</td>
</tr>
<tr>
<th>Product</th>
<td>new-bugs
</td>
</tr>
<tr>
<th>Version</th>
<td>3.8
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Windows NT
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>new bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>steven@uplinklabs.net
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=16110" name="attach_16110" title="test case">attachment 16110</a> <a href="attachment.cgi?id=16110&action=edit" title="test case">[details]</a></span>
test case
The auto-vectorizer behaves vastly differently depending on whether you use
__builtin_sqrtf or a sqrtf() call from math.h. Attaching examples momentarily.</pre>
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