1 files changed, 29 insertions, 0 deletions
diff --git a/compiler-rt/test/tsan/stack_race2.cpp b/compiler-rt/test/tsan/stack_race2.cpp
new file mode 100644
index 00000000000..00e31fb96b0
--- /dev/null
+++ b/compiler-rt/test/tsan/stack_race2.cpp
@@ -0,0 +1,29 @@
+// RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
+#include "test.h"
+
+void *Thread2(void *a) {
+  barrier_wait(&barrier);
+  *(int*)a = 43;
+  return 0;
+}
+
+void *Thread(void *a) {
+  int Var = 42;
+  pthread_t t;
+  pthread_create(&t, 0, Thread2, &Var);
+  Var = 42;
+  barrier_wait(&barrier);
+  pthread_join(t, 0);
+  return 0;
+}
+
+int main() {
+  barrier_init(&barrier, 2);
+  pthread_t t;
+  pthread_create(&t, 0, Thread, 0);
+  pthread_join(t, 0);
+}
+
+// CHECK: WARNING: ThreadSanitizer: data race
+// CHECK:   Location is stack of thread T1.
+