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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Fix shift instruction miscompilation in the AVR backend"
href="https://bugs.llvm.org/show_bug.cgi?id=49176">49176</a>
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<th>Summary</th>
<td>Fix shift instruction miscompilation in the AVR backend
</td>
</tr>
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<th>Product</th>
<td>new-bugs
</td>
</tr>
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<th>Version</th>
<td>11.0
</td>
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<th>Hardware</th>
<td>All
</td>
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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>
</tr>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>new bugs
</td>
</tr>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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</tr>
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<th>Reporter</th>
<td>aykevanlaethem@gmail.com
</td>
</tr>
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<th>CC</th>
<td>htmldeveloper@gmail.com, llvm-bugs@lists.llvm.org
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<th>Blocks</th>
<td>48902
</td>
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<p>
<div>
<pre>There was a critical bug in the AVR backend which meant that many 16-bit shifts
were miscompiled. This has been fixed in <a href="https://reviews.llvm.org/D96590">https://reviews.llvm.org/D96590</a>
(commit <a href="https://reviews.llvm.org/rGefb1cb752bf12149af9c773f702a757ba9721649">https://reviews.llvm.org/rGefb1cb752bf12149af9c773f702a757ba9721649</a>).
This is a regression from LLVM 11. I think this should be included in the LLVM
12 branch, as without it the AVR backend is almost unusable.</pre>
</div>
</p>
<div id="referenced">
<hr style="border: 1px dashed #969696">
<b>Referenced Bugs:</b>
<ul>
<li>
[<a class="bz_bug_link
bz_status_NEW "
title="NEW - [meta] 12.0.0 Release Blockers"
href="https://bugs.llvm.org/show_bug.cgi?id=48902">Bug 48902</a>] [meta] 12.0.0 Release Blockers
</li>
</ul>
</div>
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