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| author | Jonathan Peyton <jonathan.l.peyton@intel.com> | 2022-05-05 09:15:41 -0500 |
|---|---|---|
| committer | Jonathan Peyton <jonathan.l.peyton@intel.com> | 2022-06-22 10:30:35 -0500 |
| commit | b7b498657685d7a305987b9140253523e77fd4e1 (patch) | |
| tree | 5a3863e03b8841ec3ec4f3223ac5b006931c85ea /flang/lib/Frontend/CompilerInvocation.cpp | |
| parent | 106151100867041f705a0cdf25dfe1f732b28443 (diff) | |
| download | llvm-b7b498657685d7a305987b9140253523e77fd4e1.zip llvm-b7b498657685d7a305987b9140253523e77fd4e1.tar.gz llvm-b7b498657685d7a305987b9140253523e77fd4e1.tar.bz2 | |
[OpenMP][libomp] Hold old __kmp_threads arrays until library shutdown
When many nested teams are formed, __kmp_threads may be reallocated
to accommodate new threads. This reallocation causes a data
race when another existing team's thread simultaneously references
__kmp_threads. This patch keeps the old thread arrays around until library
shutdown so these lingering references can complete without issue and
access to __kmp_threads remains a simple array reference.
Fixes: https://github.com/llvm/llvm-project/issues/54708
Differential Revision: https://reviews.llvm.org/D125013
Diffstat (limited to 'flang/lib/Frontend/CompilerInvocation.cpp')
0 files changed, 0 insertions, 0 deletions