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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - LLVM should be able to replace a unnamed_addr wrapper function with the callee"
href="http://llvm.org/bugs/show_bug.cgi?id=17919">17919</a>
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<th>Summary</th>
<td>LLVM should be able to replace a unnamed_addr wrapper function with the callee
</td>
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<th>Product</th>
<td>libraries
</td>
</tr>
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<th>Version</th>
<td>trunk
</td>
</tr>
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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>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>Interprocedural 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>rafael.espindola@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>given
define linkonce_odr void @foo() unnamed_addr {
call void @bar()
ret void
}
llvm has no issues inlining and deleting foo. If we use a pointer to foo on the
other hand, llvm is not able to replace it with bar.
Clang has a spacial case for this when a destructor in a base class is
identical to one in the derived class. With this optimization implemented in
llvm we could probably drop the special case from clang.</pre>
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