[Openmp-commits] [openmp] [OpenMP] Sync the team task for serialized parallel (PR #85600)

[Shilei Tian via Openmp-commits]

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+// RUN: %libomp-compile-and-run
+// RUN: %libomp-cxx-compile && env OMP_NUM_THREADS=1 %libomp-run
+
+/*
+https://github.com/llvm/llvm-project/issues/81488
+
+Assertion failure at kmp_runtime.cpp(2460): master_th->th.th_task_team == team->t.t_task_team[master_th->th.th_task_state].
+OMP: Error #13: Assertion failure at kmp_runtime.cpp(2460).
+
+The assertion fails with OMP_NUM_THREADS=1.
+
+*/
+
+# include <omp.h>
+
+# define Nz  8
+# define DEVICE_ID  0
+
+int
+main(void)
+{
+    # pragma omp parallel
+    {
+        # pragma omp single
+        {
+            # pragma omp target teams distribute parallel for nowait device(DEVICE_ID)
+            for (int i = 0 ; i < Nz ; ++i)
+                {}
+        }
+        # pragma omp barrier
+    }
+    return 0;
+}
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shiltian wrote:

Empty line at EOF

https://github.com/llvm/llvm-project/pull/85600