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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [X86] Couple lit tests generate KMOVQ instructions on KNL which doesn't support KMOVQ"
href="https://bugs.llvm.org/show_bug.cgi?id=36256">36256</a>
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<th>Summary</th>
<td>[X86] Couple lit tests generate KMOVQ instructions on KNL which doesn't support KMOVQ
</td>
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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>Windows NT
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>enhancement
</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
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<th>Reporter</th>
<td>craig.topper@gmail.com
</td>
</tr>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
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<div>
<pre>While investing PR36254, I discovered that this two tests try to preserve
k-registers with a spill size of 64 bits which trigger us to use kmovq. But KNL
doesn't support KMOVQ/KMOVD and should use a spill size of 16 bits.
LLVM :: CodeGen/X86/avx512-intel-ocl.ll
LLVM :: CodeGen/X86/x86-interrupt_cc.ll</pre>
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