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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - LinkModules with PreserveSource doesn't retain type names"
href="http://llvm.org/bugs/show_bug.cgi?id=20068">20068</a>
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<th>Summary</th>
<td>LinkModules with PreserveSource doesn't retain type names
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Linux
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>Linker
</td>
</tr>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>kmillar@google.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=12674" name="attach_12674" title="Code to reproduce the bug.">attachment 12674</a> <a href="attachment.cgi?id=12674&action=edit" title="Code to reproduce the bug.">[details]</a></span>
Code to reproduce the bug.
In the attached example, calling:
Linker::LinkModules(dest, src, Linker::PreserveSource, 0);
removes the type names from the src module, making them anonymous and
preventing src from being used to link to other modules.
src module before linking:
%mytype = type { i8 }
define %mytype @baz(%mytype %bar) {
ret %mytype %bar
}
src module after linking:
%0 = type { i8 }
define %0 @baz(%0 %bar) {
ret %0 %bar
}
$ llvm-config --version
3.4</pre>
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