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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [X86] library call for rint. GCC: cvtss2si/cvtsd2si"
href="https://bugs.llvm.org/show_bug.cgi?id=37949">37949</a>
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<th>Summary</th>
<td>[X86] library call for rint. GCC: cvtss2si/cvtsd2si
</td>
</tr>
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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
</td>
</tr>
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>Backend: X86
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>Roland.Schulz@Intel.com
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</tr>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
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<p>
<div>
<pre>lrintf/llrint are missed optimization opportunities compared to GCC.
GCC (at least since 4.8) with "-O3 -fno-math-errno" compiles them into
cvtss2si/cvtsd2si and only uses library calls without those flags. Clang always
compiles them into library calls.</pre>
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