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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [OpenMP 5.0] Incorrect results for scan directive"
href="https://bugs.llvm.org/show_bug.cgi?id=49115">49115</a>
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<th>Summary</th>
<td>[OpenMP 5.0] Incorrect results for scan directive
</td>
</tr>
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<th>Product</th>
<td>OpenMP
</td>
</tr>
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<th>Version</th>
<td>unspecified
</td>
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<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>
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<th>Severity</th>
<td>normal
</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
</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=24506" name="attach_24506" title="Source of reproducer for the OpenMP scan correctness bug.">attachment 24506</a> <a href="attachment.cgi?id=24506&action=edit" title="Source of reproducer for the OpenMP scan correctness bug.">[details]</a></span>
Source of reproducer for the OpenMP scan correctness bug.
Overview: Program using the OpenMP scan directive and reduction(inscan...)
gives incorrect results when compiled with Clang 12.0.0-20210125.
Steps to reproduce:
1. Compile with `clang -lm -fopenmp scan_bug_reproducer.c`.
2. Run with `./a.out`
Actual results:
`Test failed, total errors: 1016.`
Expected results:
`Test passed.`
Build & Hardware:
clang version 12.0.0 (<a href="https://github.com/llvm/llvm-project.git">https://github.com/llvm/llvm-project.git</a>
d36812892c16b551f058774babbc8727737f80cd)
Target: powerpc64le-unknown-linux-gnu
Thread model: posix
InstalledDir: /sw/summit/ums/stf010/llvm/12.0.0-20210125/bin
Additional information:
Reproducer source attached.</pre>
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