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<base href="https://bugs.llvm.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [OpenMP 5.0] Compiler crash when OpenMP atomic sync hints used"
href="https://bugs.llvm.org/show_bug.cgi?id=48658">48658</a>
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<th>Summary</th>
<td>[OpenMP 5.0] Compiler crash when OpenMP atomic sync hints used
</td>
</tr>
<tr>
<th>Product</th>
<td>OpenMP
</td>
</tr>
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<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
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<th>OS</th>
<td>Linux
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>Clang Compiler Support
</td>
</tr>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>jhdavis@udel.edu
</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=24348" name="attach_24348" title="Zip of preprocessed source, run script, and compiler output.">attachment 24348</a> <a href="attachment.cgi?id=24348&action=edit" title="Zip of preprocessed source, run script, and compiler output.">[details]</a></span>
Zip of preprocessed source, run script, and compiler output.
Overview: Clang 11.0.0-rc1 crashes when compiling code using the OpenMP atomic
construct with a hint clause.
Steps to reproduce:
1. Compile with `clang -fopenmp atomic_hint_reproducer.c`
Actual results:
Clang crashes with illegal instruction error, see attached output file for
exact message.
Expected results:
Successful compilation.
Build & Hardware:
clang version 11.0.0 (<a href="https://github.com/llvm/llvm-project.git">https://github.com/llvm/llvm-project.git</a>
d6875948aaade1cd39e5d9b373d02749dd1e58f2)
Target: powerpc64le-unknown-linux-gnu
Thread model: posix
InstalledDir: /sw/summit/llvm/11.0.0-rc1/11.0.0-rc1-0/bin
Additional Information:
Output, reproducer source, and run script attached in a zip. Reproducer uses
omp_sync_hint_contended, but crashes with any hint.</pre>
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