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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - unnamed_addr wrapper function not removed"
href="https://bugs.llvm.org/show_bug.cgi?id=50045">50045</a>
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<th>Summary</th>
<td>unnamed_addr wrapper function not removed
</td>
</tr>
<tr>
<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>
</tr>
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<th>OS</th>
<td>All
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>Interprocedural Optimizations
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>richard-llvm@metafoo.co.uk
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>Testcase:
@foo = global void ()* @bar
declare void @baz();
define internal void @bar() unnamed_addr {
tail call void @baz()
ret void
}
I would expect this to be optimized to:
@foo = global void ()* @baz
declare void @baz();
... but it is not. This comes up in C++ for cases such as:
void f();
auto *p = +[]{ f(); }
... where the language rules permit marking the static invoker for the lambda
as unnamed_addr -- the only constraints are on the behavior of the returned
pointer, not on its valid. (Clang doesn't do this yet.)</pre>
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