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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Ignored initializer clause in user-defined reduction"
href="https://bugs.llvm.org/show_bug.cgi?id=50929">50929</a>
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<th>Summary</th>
<td>Ignored initializer clause in user-defined reduction
</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>Macintosh
</td>
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<th>OS</th>
<td>MacOS X
</td>
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<th>Status</th>
<td>NEW
</td>
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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>
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<th>Reporter</th>
<td>emil.loevbak@kuleuven.be
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
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<div>
<pre>Created <span class=""><a href="attachment.cgi?id=24988" name="attach_24988" title="Code reproducing the error">attachment 24988</a> <a href="attachment.cgi?id=24988&action=edit" title="Code reproducing the error">[details]</a></span>
Code reproducing the error
The code in the attached cpp file generates a compilation error under clang++
12 on Mac OS (both x86 and ARM). I, however, believe the code to be correct. It
also compiles and runs without issues under g++.
It seems that the initalizer clause is not being read by the preprocessor and
instead the private copies of the struct are being initialized with the
(non-existent) empty-brackets constructor.
Compilation command: clang++ -Xpreprocessor -fopenmp reduction.cpp
Tested compilers:
emil@serenity Downloads % clang++ -v
Apple clang version 12.0.5 (clang-1205.0.22.9)
Target: arm64-apple-darwin20.5.0
Thread model: posix
InstalledDir: /Library/Developer/CommandLineTools/usr/bin
emil@serenity Downloads % /usr/local/opt/llvm/bin/clang++ -v
clang version 12.0.0
Target: x86_64-apple-darwin20.5.0
Thread model: posix
InstalledDir: /usr/local/opt/llvm/bin</pre>
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