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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Top half of __m256i is not filled when returned from a function"
href="http://llvm.org/bugs/show_bug.cgi?id=20661">20661</a>
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<th>Summary</th>
<td>Top half of __m256i is not filled when returned from a function
</td>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Linux
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>C++
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>alankelly@live.com
</td>
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<th>CC</th>
<td>dgregor@apple.com, llvmbugs@cs.uiuc.edu
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=12897" name="attach_12897" title="Test case">attachment 12897</a> <a href="attachment.cgi?id=12897&action=edit" title="Test case">[details]</a></span>
Test case
When returning an std::array (or boost::array) of __m256i, the top half of the
vector is not filled. In the attached test case, assigning t to a works as
expected but when t is assigned to c via the eval function, the top half of the
vector is lost.
This also works with g++.</pre>
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