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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Optimize 16-bit ORs with '0'"
href="https://llvm.org/bugs/show_bug.cgi?id=31344">31344</a>
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<th>Summary</th>
<td>Optimize 16-bit ORs with '0'
</td>
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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>All
</td>
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>Backend: AVR
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>dylanmckay34@gmail.com
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</tr>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
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<th>Classification</th>
<td>Unclassified
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<p>
<div>
<pre>Currently if we get an OR with immediate '0xff00', we will emit two ORI
instructions, one to OR with '0xff' and one to OR with '0x00'.
ORing with 0 is unnecessary and it just causes an extra redundant operation.
Let's optimise this operation in the pseudo instruction expander.</pre>
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