Add debug trace message for hierarchical barrier
Trace when thread is waiting at join phase for oncore children.
llvm-svn: 252954
diff --git a/openmp/runtime/src/kmp_barrier.cpp b/openmp/runtime/src/kmp_barrier.cpp
index 89bf828..d7c7321 100644
--- a/openmp/runtime/src/kmp_barrier.cpp
+++ b/openmp/runtime/src/kmp_barrier.cpp
@@ -766,6 +766,8 @@
if (__kmp_dflt_blocktime == KMP_MAX_BLOCKTIME && thr_bar->use_oncore_barrier) {
if (thr_bar->leaf_kids) { // First, wait for leaf children to check-in on my b_arrived flag
kmp_uint64 leaf_state = KMP_MASTER_TID(tid) ? thr_bar->b_arrived | thr_bar->leaf_state : team->t.t_bar[bt].b_arrived | thr_bar->leaf_state;
+ KA_TRACE(20, ("__kmp_hierarchical_barrier_gather: T#%d(%d:%d) waiting for leaf kids\n",
+ gtid, team->t.t_id, tid));
kmp_flag_64 flag(&thr_bar->b_arrived, leaf_state);
flag.wait(this_thr, FALSE
USE_ITT_BUILD_ARG(itt_sync_obj) );