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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Assertion `(Ops[0].getValueType().getVectorElementCount() * Ops.size()) == VT.getVectorElementCount() & & "Incorrect element count in vector concatenation!"' failed"
href="https://bugs.llvm.org/show_bug.cgi?id=46820">46820</a>
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<th>Summary</th>
<td>Assertion `(Ops[0].getValueType().getVectorElementCount() * Ops.size()) == VT.getVectorElementCount() & & "Incorrect element count in vector concatenation!"' failed
</td>
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<tr>
<th>Product</th>
<td>libraries
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>All
</td>
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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
</td>
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<th>Component</th>
<td>Backend: X86
</td>
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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>
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<th>CC</th>
<td>craig.topper@gmail.com, llvm-bugs@lists.llvm.org, llvm-dev@redking.me.uk, spatel+llvm@rotateright.com
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<pre>Created <span class=""><a href="attachment.cgi?id=23767" name="attach_23767" title="reduced test case">attachment 23767</a> <a href="attachment.cgi?id=23767&action=edit" title="reduced test case">[details]</a></span>
reduced test case
Seems to be an AVX512 issue
$ llc < bugpoint-reduced-simplified.ll
llc: llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp:4340: llvm::SDValue
foldCONCAT_VECTORS(const llvm::SDLoc &, llv
m::EVT, ArrayRef<llvm::SDValue>, llvm::SelectionDAG &): Assertion
`(Ops[0].getValueType().getVectorElementCount() * Ops.size()) ==
VT.getVectorElementCount() &
& "Incorrect element count in vector concatenation!"' failed.</pre>
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