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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - hierarchical parallelism hangs"
href="https://bugs.llvm.org/show_bug.cgi?id=49021">49021</a>
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<th>Summary</th>
<td>hierarchical parallelism hangs
</td>
</tr>
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<th>Product</th>
<td>OpenMP
</td>
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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>Linux
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>enhancement
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>Clang Compiler Support
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>xw111luoye@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=24479" name="attach_24479" title="test source code">attachment 24479</a> <a href="attachment.cgi?id=24479&action=edit" title="test source code">[details]</a></span>
test source code
Jan 26 84c6f325840d363c6f3de2091771065234ce4146 works fine
Feb 03 e59d336e75f4670b1a702c2281b3fed27ba4c426 fails
clang++ -fopenmp -fopenmp-targets=nvptx64 -O3 test_omp_offload_reduction.cpp
./a.out # hangs
-O2 works always fine.</pre>
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