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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [AArch64, NEON] UNREACHABLE executed at LegalizeIntegerTypes.cpp:51, "Do not know how to promote this operator!""
href="https://llvm.org/bugs/show_bug.cgi?id=22886">22886</a>
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<th>Summary</th>
<td>[AArch64, NEON] UNREACHABLE executed at LegalizeIntegerTypes.cpp:51, "Do not know how to promote this operator!"
</td>
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<th>Product</th>
<td>new-bugs
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Linux
</td>
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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
</td>
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<th>Component</th>
<td>new bugs
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>vladimir.sukharev@gmail.com
</td>
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<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
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<th>Classification</th>
<td>Unclassified
</td>
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<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=14037" name="attach_14037" title="test_case">attachment 14037</a> <a href="attachment.cgi?id=14037&action=edit" title="test_case">[details]</a></span>
test_case
With top of tree and the attached, I'm seeing the following crash:
$ llc arm64-vmul-internalerror.ll -march=arm64
PromoteIntegerResult #0: 0x5582ee0: i16 = llvm.aarch64.neon.sqadd 0x5582660,
0x5582ff0, 0x5582880 [ORD=5] [ID=0]
Do not know how to promote this operator!
UNREACHABLE executed at
/work/llvm/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp:51!
...
Stack dump:
0. Program arguments: llc arm64-vmul-internalerror.ll -march=arm64
1. Running pass 'Function Pass Manager' on module
'arm64-vmul-internalerror.ll'.
2. Running pass 'AArch64 Instruction Selection' on function
'@test_sqdmlahq_extracted_lane_s16'</pre>
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