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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [Loop Idiom Recognizer] Missing basic memmov support"
href="https://llvm.org/bugs/show_bug.cgi?id=25165">25165</a>
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<th>Summary</th>
<td>[Loop Idiom Recognizer] Missing basic memmov support
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
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<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Windows NT
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>Loop Optimizer
</td>
</tr>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>mcrosier@codeaurora.org
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>GCC is able to generate a memmov from the following loop, while LLVM is unable
to produce either a memset or memmov.
void test(int *a) {
for (int i = 0; i < 1023; ++i)
a[i] = a[i+1];
}
Benjamin added an implementation in r166875, but it was reverted. The pass was
then totally revamped and a new implementation may be required.</pre>
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