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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 --- - Clang miscompiles dllimport + thread local variables"
href="http://llvm.org/bugs/show_bug.cgi?id=21111">21111</a>
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<th>Summary</th>
<td>Clang miscompiles dllimport + thread local variables
</td>
</tr>
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<th>Product</th>
<td>clang
</td>
</tr>
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<th>Version</th>
<td>unspecified
</td>
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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>
</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>LLVM Codegen
</td>
</tr>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>david.majnemer@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>consider:
__declspec(thread, dllimport) int x;
int f() { return x; }
we generate:
"?f@@YAHXZ": # @"\01?f@@YAHXZ"
# BB#0: # %entry
pushl %ebp
movl %esp, %ebp
movl __tls_index, %eax
movl %fs:__tls_array, %ecx
movl (%ecx,%eax,4), %eax
movl "?x@@3HA"@SECREL32(%eax), %eax
popl %ebp
retl
Note that 'x' isn't dllimport'd</pre>
</div>
</p>
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