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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [AVX-512] llc generates incorrect code"
href="https://llvm.org/bugs/show_bug.cgi?id=25519">25519</a>
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<tr>
<th>Summary</th>
<td>[AVX-512] llc generates incorrect code
</td>
</tr>
<tr>
<th>Product</th>
<td>tools
</td>
</tr>
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<th>Version</th>
<td>trunk
</td>
</tr>
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<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Linux
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>llc
</td>
</tr>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>Vsevolod.Livinskij@frtk.ru
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=15286" name="attach_15286" title="Reproducer.">attachment 15286</a> <a href="attachment.cgi?id=15286&action=edit" title="Reproducer.">[details]</a></span>
Reproducer.
llc produces incorrect code for knl
Compile with clang++ func.cpp -std=c++11 -march=knl -O3 -c
fatal error: error in backend: Cannot select: 0x5fb79f0: i32 = X86ISD::CMP
0x5fb5830, 0x5fdc310
0x5fb5830: i1 = truncate 0x5fdbd20
0x5fdbd20: i8 = or 0x5fb5a90, 0x5fde330
0x5fb5a90: i8 = and 0x5fdbac0, Constant:i8<1>
...............................
In function: _Z3foov
clang-3.8: error: clang frontend command failed with exit code 70 (use -v to
see invocation)
clang version 3.8.0 (trunk 251403)
Target: x86_64-unknown-linux-gnu
Thread model: posix</pre>
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