1 files changed, 24 insertions, 0 deletions
diff --git a/compiler-rt/lib/tsan/lit_tests/race_on_mutex2.c b/compiler-rt/lib/tsan/lit_tests/race_on_mutex2.c
new file mode 100644
index 00000000000..84bef75a344
--- /dev/null
+++ b/compiler-rt/lib/tsan/lit_tests/race_on_mutex2.c
@@ -0,0 +1,24 @@
+// RUN: %clang_tsan -O1 %s -o %t && %t 2>&1 | FileCheck %s
+#include <pthread.h>
+#include <stdio.h>
+#include <stddef.h>
+#include <unistd.h>
+
+void *Thread(void *x) {
+  pthread_mutex_lock((pthread_mutex_t*)x);
+  pthread_mutex_unlock((pthread_mutex_t*)x);
+  return 0;
+}
+
+int main() {
+  pthread_mutex_t Mtx;
+  pthread_mutex_init(&Mtx, 0);
+  pthread_t t;
+  pthread_create(&t, 0, Thread, &Mtx);
+  sleep(1);
+  pthread_mutex_destroy(&Mtx);
+  pthread_join(t, 0);
+  return 0;
+}
+
+// CHECK:      WARNING: ThreadSanitizer: data race