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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [SLPVectorizer] Failure to use vector store as a seed point"
href="https://bugs.llvm.org/show_bug.cgi?id=40522">40522</a>
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<th>Summary</th>
<td>[SLPVectorizer] Failure to use vector store as a seed point
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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
</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>Scalar Optimizations
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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</tr>
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<th>Reporter</th>
<td>llvm-dev@redking.me.uk
</td>
</tr>
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<th>CC</th>
<td>a.bataev@hotmail.com, llvm-bugs@lists.llvm.org, spatel+llvm@rotateright.com
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<p>
<div>
<pre><a href="https://godbolt.org/z/6NyXmr">https://godbolt.org/z/6NyXmr</a>
void test1(float a, float b, float c, float d, int *p) {
int4 result = (int4) { (int) a, (int) b, (int) c, (int) d };
*p++ = result[0];
*p++ = result[1];
*p++ = result[2];
*p++ = result[3];
}
void test1_vec(float a, float b, float c, float d, int4 *p) {
int4 result = (int4) { (int) a, (int) b, (int) c, (int) d };
*p = result;
}
We will vectorize the first variant but not the second.</pre>
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