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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - LLC can't build gather's intrinsic with constant mask parameter"
href="https://llvm.org/bugs/show_bug.cgi?id=24768">24768</a>
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<th>Summary</th>
<td>LLC can't build gather's intrinsic with constant mask parameter
</td>
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<th>Product</th>
<td>tools
</td>
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<th>Version</th>
<td>trunk
</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>
</tr>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>llc
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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</tr>
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<th>Reporter</th>
<td>shishpanov2010@yandex.ru
</td>
</tr>
<tr>
<th>CC</th>
<td>babokin@gmail.com, llvm-bugs@lists.llvm.org
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=14862" name="attach_14862" title="sample of the input data">attachment 14862</a> <a href="attachment.cgi?id=14862&action=edit" title="sample of the input data">[details]</a></span>
sample of the input data
LLC tries to make a vector of the forth parameter (mask) of
@llvm.x86.avx512.gather.dpq.512 intrinsic, but it is impossible, because the
type of the resulting vector is a bool.
Attached file:
badIR.ll - this code does not work, if the forth gather's parameter "i8 3"
replace with "i8 bitcast (<8 x i1> <i1 true, i1 true, i1 false, i1 false, i1
false, i1 false, i1 false, i1 false> to i8)", then it compiles.
Key for llc launch: -mcpu=knl</pre>
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