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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - llvm-mc doesn't accept AVX512 instructions using %zmm16+"
href="https://bugs.llvm.org/show_bug.cgi?id=36202">36202</a>
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<th>Summary</th>
<td>llvm-mc doesn't accept AVX512 instructions using %zmm16+
</td>
</tr>
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<th>Product</th>
<td>libraries
</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>All
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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
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<th>Component</th>
<td>Backend: X86
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>benny.kra@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
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<p>
<div>
<pre>$ echo vpaddd %zmm1, %zmm2, %zmm3 | llvm-mc
.text
vpaddd %zmm1, %zmm2, %zmm3
$ echo vpaddd %zmm16, %zmm17, %zmm18 | llvm-mc
.text
<stdin>:1:8: error: register %zmm16 is only available with AVX512
It does accept them with -mcpu=skx, but it should always accept them.</pre>
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</p>
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