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authorAndrey Churbanov <Andrey.Churbanov@intel.com>2018-11-14 13:49:41 +0000
committerAndrey Churbanov <Andrey.Churbanov@intel.com>2018-11-14 13:49:41 +0000
commit82318c6f14e1d227a244720651562d81b7c9b18d (patch)
tree364354ec6ef576f4881615dc1c8002e1bd61e0fe /openmp/runtime/src/kmp_runtime.cpp
parenta6a19c00d5058e0789777ee156def8d093108365 (diff)
downloadbcm5719-llvm-82318c6f14e1d227a244720651562d81b7c9b18d.tar.gz
bcm5719-llvm-82318c6f14e1d227a244720651562d81b7c9b18d.zip
Fix for bugzilla https://bugs.llvm.org/show_bug.cgi?id=39137.
Do not write to internal structure if it keeps same value. Differential Revision: https://reviews.llvm.org/D54305 llvm-svn: 346862
Diffstat (limited to 'openmp/runtime/src/kmp_runtime.cpp')
-rw-r--r--openmp/runtime/src/kmp_runtime.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/openmp/runtime/src/kmp_runtime.cpp b/openmp/runtime/src/kmp_runtime.cpp
index b861c06d2a5..f2e99565493 100644
--- a/openmp/runtime/src/kmp_runtime.cpp
+++ b/openmp/runtime/src/kmp_runtime.cpp
@@ -2649,6 +2649,8 @@ void __kmp_set_num_threads(int new_nth, int gtid) {
KMP_COUNT_VALUE(OMP_set_numthreads, new_nth);
thread = __kmp_threads[gtid];
+ if (thread->th.th_current_task->td_icvs.nproc == new_nth)
+ return; // nothing to do
__kmp_save_internal_controls(thread);
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