1 files changed, 29 insertions, 0 deletions
diff --git a/compiler-rt/test/tsan/bench_ten_mutexes.cpp b/compiler-rt/test/tsan/bench_ten_mutexes.cpp
new file mode 100644
index 00000000000..e7fa05ea820
--- /dev/null
+++ b/compiler-rt/test/tsan/bench_ten_mutexes.cpp
@@ -0,0 +1,29 @@
+// RUN: %clangxx_tsan %s -o %t
+// RUN: %run %t 2>&1 | FileCheck %s
+
+// bench.h needs pthread barriers which are not available on OS X
+// UNSUPPORTED: darwin
+
+#include "bench.h"
+
+const int kMutex = 10;
+pthread_mutex_t mtx[kMutex];
+
+void thread(int tid) {
+  for (int i = 0; i < bench_niter; i++) {
+    int idx = (i % kMutex);
+    if (tid == 0)
+      idx = kMutex - idx - 1;
+    pthread_mutex_lock(&mtx[idx]);
+    pthread_mutex_unlock(&mtx[idx]);
+  }
+}
+
+void bench() {
+  for (int i = 0; i < kMutex; i++)
+    pthread_mutex_init(&mtx[i], 0);
+  start_thread_group(2, thread);
+}
+
+// CHECK: DONE
+