<html>
    <head>
      <base href="http://llvm.org/bugs/" />
    </head>
    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <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>
          </td>
        </tr>

        <tr>
          <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>

        <tr>
          <th>OS</th>
          <td>Linux
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P
          </td>
        </tr>

        <tr>
          <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>

        <tr>
          <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>
        </div>
      </p>
      <hr>
      <span>You are receiving this mail because:</span>
      
      <ul>
          <li>You are on the CC list for the bug.</li>
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