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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [ConstantFolding] Saturated add/sub doesn't handle individual undef vector elements"
href="https://bugs.llvm.org/show_bug.cgi?id=40110">40110</a>
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<th>Summary</th>
<td>[ConstantFolding] Saturated add/sub doesn't handle individual undef vector elements
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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
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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>Common Code Generator Code
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>llvm-dev@redking.me.uk
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</tr>
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<th>CC</th>
<td>craig.topper@gmail.com, llvm-bugs@lists.llvm.org, nikita.ppv@gmail.com, spatel+llvm@rotateright.com
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<p>
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<pre>As discussed on <a href="https://reviews.llvm.org/D55894">https://reviews.llvm.org/D55894</a>, while scalar/vector undef args
are handled by the signed/unsigned saturated add/sub constant folding,
individual undef vector elements are not.
<a href="https://godbolt.org/z/lpSt8e">https://godbolt.org/z/lpSt8e</a></pre>
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