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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [AVX-512] llc fails with with setcce"
href="https://llvm.org/bugs/show_bug.cgi?id=26232">26232</a>
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<tr>
<th>Summary</th>
<td>[AVX-512] llc fails with with setcce
</td>
</tr>
<tr>
<th>Product</th>
<td>tools
</td>
</tr>
<tr>
<th>Version</th>
<td>3.8
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</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>
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<th>Component</th>
<td>llc
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<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=15679" name="attach_15679" title="Reproducer.">attachment 15679</a> <a href="attachment.cgi?id=15679&action=edit" title="Reproducer.">[details]</a></span>
Reproducer.
When I compile with llc -mcpu=knl -march=x86 reproducer.ll it fails with error,
while with -mcpu=core-avx2 it works fine.
LLVM ERROR: Cannot select: t31: i1 = setcce undef:i32, Constant:i32<0>, t44:1,
setlt:ch
t26: i32 = undef
t25: i32 = Constant<0>
t44: i32,i32 = X86ISD::SUB undef:i32, Constant:i32<65536>
t26: i32 = undef
t24: i32 = Constant<65536>
In function: f_f
llc --version
LLVM (<a href="http://llvm.org/">http://llvm.org/</a>):
LLVM version 3.8.0
Optimized build with assertions.
Built Jan 20 2016 (07:57:05).
Default target: x86_64-unknown-linux-gnu
Host CPU: haswell
clang version 3.8.0 (branches/release_38)</pre>
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