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<base href="http://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - LTO link with thread-local variables fails"
href="http://llvm.org/bugs/show_bug.cgi?id=16241">16241</a>
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<th>Summary</th>
<td>LTO link with thread-local variables fails
</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>Interprocedural Optimizations
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>eugeni.stepanov@gmail.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>I could not find an appropriate bug category for this.
$ cat 1.cc
extern "C" {
__thread int x;
}
int f();
int main(void) {
return f();
}
$ cat 2.cc
extern __thread int x;
int f() {
return x;
}
$ ./bin/clang++ -c 1.cc
$ ./bin/clang++ -O4 1.o 2.cc
/usr/bin/ld: error: /tmp/2-Lj0Wg6.o: symbol 'x' used as both __thread and
non-__thread
/usr/bin/ld: 1.o: previous definition here
$ /usr/bin/ld --version
GNU gold (GNU Binutils for Ubuntu 2.22) 1.11</pre>
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