1 files changed, 35 insertions, 0 deletions
diff --git a/final/libomptarget/deviceRTLs/nvptx/test/parallel/flush.c b/final/libomptarget/deviceRTLs/nvptx/test/parallel/flush.c
new file mode 100644
index 0000000..412538b
--- /dev/null
+++ b/final/libomptarget/deviceRTLs/nvptx/test/parallel/flush.c
@@ -0,0 +1,35 @@
+// RUN: %compile-run-and-check
+
+#include <omp.h>
+#include <stdio.h>
+
+int main(int argc, char *argv[]) {
+  int data, out, flag = 0;
+#pragma omp target parallel num_threads(64) map(tofrom                         \
+                                                : out, flag) map(to            \
+                                                                 : data)
+  {
+    if (omp_get_thread_num() == 0) {
+      /* Write to the data buffer that will be read by thread */
+      data = 42;
+/* Flush data to thread 32 */
+#pragma omp flush(data)
+      /* Set flag to release thread 32 */
+#pragma omp atomic write
+      flag = 1;
+    } else if (omp_get_thread_num() == 32) {
+      /* Loop until we see the update to the flag */
+      int val;
+      do {
+#pragma omp atomic read
+        val = flag;
+      } while (val < 1);
+      out = data;
+#pragma omp flush(out)
+    }
+  }
+  // CHECK: out=42.
+  /* Value of out will be 42 */
+  printf("out=%d.\n", out);
+  return !(out == 42);
+}