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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [X86] Use more aligned vector stores for memcpy/memset when alignment is known"
href="https://bugs.llvm.org/show_bug.cgi?id=39952">39952</a>
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<th>Summary</th>
<td>[X86] Use more aligned vector stores for memcpy/memset when alignment is known
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<th>Product</th>
<td>new-bugs
</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>Linux
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<th>Status</th>
<td>NEW
</td>
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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>new bugs
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>clement.courbet@gmail.com
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<th>CC</th>
<td>htmldeveloper@gmail.com, llvm-bugs@lists.llvm.org
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<p>
<div>
<pre>From the review thread in <a href="https://reviews.llvm.org/D55365">https://reviews.llvm.org/D55365</a>:
We can align stack objects to a 16-byte boundary, or at worst we *know* their
alignment relative to a 16-byte boundary.
We can use movaps for the aligned part at least, even if we use scalar stores
for the unaligned start/end (potentially overlapping the vector store).</pre>
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