<html>
<head>
<base href="http://llvm.org/bugs/" />
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [AVX512] add support for ktest"
href="http://llvm.org/bugs/show_bug.cgi?id=20703">20703</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>[AVX512] add support for ktest
</td>
</tr>
<tr>
<th>Product</th>
<td>new-bugs
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</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>
<tr>
<th>Component</th>
<td>new bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>matt@pharr.org
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>It would be quite useful to have the ktest instructions available as an
intrinsics.
Alternatively (or in addition?) it would be nice if avx512 codegen matched
patterns along the lines of
%0 = bitcast <16 x i1> %mask to i16
%c = icmp eq i16 %0, 0
And generated a ktest (rather than a kmovw to a scalar register and then a test
instruction as it does now).
Even better, detecting
%mask = and <16 x i1> %mask1, %mask2
%0 = bitcast <16 x i1> %mask to i16
%c = icmp eq i16 %0, 0
And also turning that into a single ktest taking %mask1 and %mask2 would be
great as well.</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are on the CC list for the bug.</li>
</ul>
</body>
</html>