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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - OpenMP offload runtime Floating point exception with 1 helper thread"
href="https://bugs.llvm.org/show_bug.cgi?id=49813">49813</a>
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<th>Summary</th>
<td>OpenMP offload runtime Floating point exception with 1 helper thread
</td>
</tr>
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<th>Product</th>
<td>OpenMP
</td>
</tr>
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<th>Version</th>
<td>unspecified
</td>
</tr>
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<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>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>Runtime Library
</td>
</tr>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>xw111luoye@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
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<p>
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<pre>Using commit df4fa53fddb61c2514e7e09fb7cdde53edced958
$ clang++ -fopenmp -fopenmp-targets=nvptx64 task.cpp
$ LIBOMP_USE_HIDDEN_HELPER_TASK=ON LIBOMP_NUM_HIDDEN_HELPER_THREADS=1 ./a.out
start
Floating point exception
source code:
#include <iostream>
int main()
{
int a[128];
#pragma omp target enter data map(alloc: a[:128])
{
std::cout << "start" << std::endl;
#pragma omp target update to(a[:128]) nowait
#pragma omp taskwait
std::cout << "after taskwait" << std::endl;
}
#pragma omp target exit data map(delete: a[:128])
}</pre>
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