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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Parallel.h's use of of concrt / ppl is incorrect"
href="https://bugs.llvm.org/show_bug.cgi?id=41198">41198</a>
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<th>Summary</th>
<td>Parallel.h's use of of concrt / ppl is incorrect
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<th>Product</th>
<td>libraries
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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>All
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>enhancement
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>Support Libraries
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>nicolasweber@gmx.de
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
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<pre>Writes BillyONeil (<a href="https://reviews.llvm.org/D59676#1438927">https://reviews.llvm.org/D59676#1438927</a>):
'''There's also an issue here that this code is using std::mutex with ConcRT
powered machinery like Concurrency::parallel_for_each, which is not supported
and is likely to result in deadlocks. ConcRT assumes that everything you give
to it is non-blocking, so you can't use Concurrency::parallel_for_each with
platform synchronization primitives. (This is the biggest reason we, MSVC++,
are moving away from ConcRT as a technoligy and did not use it to power our
parallel algorithms implementation)'''
We should probably move off concrt / ppl then.</pre>
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