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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - std::complex support in offload region needed"
href="https://bugs.llvm.org/show_bug.cgi?id=45003">45003</a>
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</tr>
<tr>
<th>Summary</th>
<td>std::complex support in offload region needed
</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>PC
</td>
</tr>
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<th>OS</th>
<td>Linux
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>Clang Compiler Support
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>xw111luoye@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
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<pre><a href="https://github.com/ye-luo/openmp-target/blob/master/hands-on/tests/complex/complex.cpp">https://github.com/ye-luo/openmp-target/blob/master/hands-on/tests/complex/complex.cpp</a>
I cannot test this on x86 due to math header issue but I can test on power 9.
So far std::complex doesn't work at all.
[<a href="mailto:yeluo@login3.summit">yeluo@login3.summit</a> complex]$ clang++ -g -O3 -fopenmp
-fopenmp-targets=nvptx64-nvidia-cuda -ffast-math complex.cpp
[<a href="mailto:yeluo@login3.summit">yeluo@login3.summit</a> complex]$ ./a.out
wrong a * b (0,0), correct value (-0.3,0.5)
[<a href="mailto:yeluo@login3.summit">yeluo@login3.summit</a> complex]$ clang++ -g -O3 -fopenmp
-fopenmp-targets=nvptx64-nvidia-cuda complex.cpp
nvlink error : Undefined reference to '__mulsc3' in
'/tmp/complex-5ceac3.cubin'
clang-11: error: nvlink command failed with exit code 255 (use -v to see
invocation)</pre>
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