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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Merge r277991 into the 3.9 branch"
href="https://llvm.org/bugs/show_bug.cgi?id=30855">30855</a>
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<th>Summary</th>
<td>Merge r277991 into the 3.9 branch
</td>
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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>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>Runtime Library
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>howarth.mailing.lists@gmail.com
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</tr>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
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<th>Classification</th>
<td>Unclassified
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<pre>I would like to propose merging the change...
r277991 | hahnfeld | 2016-08-08 06:08:07 -0400 (Mon, 08 Aug 2016) | 24 lines
__kmp_free_task: Fix for serial explicit tasks producing proxy tasks
Consider the following code which may be executed by a serial team:
int dep;
#pragma omp target nowait depend(out: dep)
{
sleep(1);
}
#pragma omp task depend(in: dep)
{
#pragma omp target nowait
{
sleep(1);
}
}
Here the explicit task may not be freed until the nested proxy task has
finished. The current code hasn't considered this and called __kmp_free_task
anyway which triggered an assert because of remaining incomplete children:
KMP_DEBUG_ASSERT( TCR_4(taskdata->td_incomplete_child_tasks) == 0 );
Differential Revision: <a href="https://reviews.llvm.org/D23115">https://reviews.llvm.org/D23115</a>
to 3.9 branch for the 3.9.1 release</pre>
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