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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - -fno-cuda-host-device-constexpr not supported?"
href="https://bugs.llvm.org/show_bug.cgi?id=50505">50505</a>
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<th>Summary</th>
<td>-fno-cuda-host-device-constexpr not supported?
</td>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>trunk
</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>release blocker
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>CUDA
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>carlosgalvezp@gmail.com
</td>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
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<p>
<div>
<pre>Hi,
We are compiling CUDA code with clang 12
(12.0.0~%2b%2b20210319082650%2b4990141a4366-1~exp1~20210319193429.62), and get
the following error:
error: constexpr function 'foo' without __host__ or __device__ attributes
cannot overload __device__ function with same signature. Add a __host__
attribute, or build with -fno-cuda-host-device-constexpr.
[clang-diagnostic-error]
So we try to add "-fno-cuda-host-device-constexpr" when building, but it seems
to be unsupported:
clang: error: unknown argument: '-fno-cuda-host-device-constexpr'
What should we use instead?</pre>
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