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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - declare target device_type not work as expected"
href="https://bugs.llvm.org/show_bug.cgi?id=47158">47158</a>
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<th>Summary</th>
<td>declare target device_type not work as expected
</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>PC
</td>
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<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>enhancement
</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
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<th>Reporter</th>
<td>cchen@cray.com
</td>
</tr>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>1. Clang emit "error: function with 'device_type(host)' is not available on
device" when `nohost` is specified in device_type
(<a href="https://godbolt.org/z/zb5frT">https://godbolt.org/z/zb5frT</a>):
```
// clang -fopenmp -fopenmp-version=50 -fopenmp-targets=nvptx64 -emit-llvm -S
nohost.c
int device_fun() { return 100; }
#pragma omp declare target to(device_fun) device_type(nohost)
int main() {
#pragma omp target
{
device_fun();
}
}
```
2. Clang emit "function with 'device_type(host)' is not available on device"
when `host` is specified in device_type (<a href="https://godbolt.org/z/4M7j8E">https://godbolt.org/z/4M7j8E</a>)
```
// clang -fopenmp -fopenmp-version=50 -fopenmp-targets=nvptx64 -emit-llvm -S
host.c
int host_fun() { return 100; }
#pragma omp declare target to(host_fun) device_type(host)
int main() {
host_fun();
}
```</pre>
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