1 files changed, 27 insertions, 0 deletions
diff --git a/lib/tsan/lit_tests/suppress_same_stacks.cc b/lib/tsan/lit_tests/suppress_same_stacks.cc
new file mode 100644
index 000000000000..32bff9d50071
--- /dev/null
+++ b/lib/tsan/lit_tests/suppress_same_stacks.cc
@@ -0,0 +1,27 @@
+// RUN: %clangxx_tsan -O1 %s -o %t && %t 2>&1 | FileCheck %s
+#include <pthread.h>
+
+volatile int N;  // Prevent loop unrolling.
+int **data;
+
+void *Thread1(void *x) {
+  for (int i = 0; i < N; i++)
+    data[i][0] = 42;
+  return 0;
+}
+
+int main() {
+  N = 4;
+  data = new int*[N];
+  for (int i = 0; i < N; i++)
+    data[i] = new int;
+  pthread_t t;
+  pthread_create(&t, 0, Thread1, 0);
+  Thread1(0);
+  pthread_join(t, 0);
+  for (int i = 0; i < N; i++)
+    delete data[i];
+  delete[] data;
+}
+
+// CHECK: ThreadSanitizer: reported 1 warnings