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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [loop vectorize] LLVM cannot vectorize a loop with std::max on float/double."
href="https://bugs.llvm.org/show_bug.cgi?id=35354">35354</a>
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<th>Summary</th>
<td>[loop vectorize] LLVM cannot vectorize a loop with std::max on float/double.
</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>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>Loop Optimizer
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>congh@google.com
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
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<p>
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<pre>LLVM cannot vectorize the following loop:
float a[1000], b[1000];
void foo() {
for (int i = 0; i < 1000; ++i)
a[i] = std::max(a[i], b[i]);
}
<a href="https://godbolt.org/g/noVjyp">https://godbolt.org/g/noVjyp</a>
Bug GCC can:
<a href="https://godbolt.org/g/nkSuCU">https://godbolt.org/g/nkSuCU</a></pre>
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