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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - clang-3.6 thread sanitizer complains on shared_ptr operations"
href="http://llvm.org/bugs/show_bug.cgi?id=22324">22324</a>
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<th>Summary</th>
<td>clang-3.6 thread sanitizer complains on shared_ptr operations
</td>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Linux
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>Modules
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>mendola@gmail.com
</td>
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<th>CC</th>
<td>dgregor@apple.com, llvmbugs@cs.uiuc.edu
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<th>Classification</th>
<td>Unclassified
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<p>
<div>
<pre>Compiling the code (using boost 1.54) here:
<a href="http://pastebin.com/zh0SPz5n">http://pastebin.com/zh0SPz5n</a>
$ clang++-3.6 -g main.cpp -lboost_system -lboost_thread -fsanitize=thread
it complains about the concurrent operation on two different instances of
shared_ptr pointing to the same int.
Probably clang doesn't understand the homegrown atomic operations in
sp_counted_base_gcc_x86.hpp (may because it use inline assembly?).
Compiling the same source with -DBOOST_SP_USE_PTHREADS then the warning
disappears.</pre>
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