1 files changed, 39 insertions, 0 deletions
diff --git a/unittests/Support/ManagedStatic.cpp b/unittests/Support/ManagedStatic.cpp
new file mode 100644
index 0000000000..f1f03208c1
--- /dev/null
+++ b/unittests/Support/ManagedStatic.cpp
@@ -0,0 +1,39 @@
+//===- llvm/unittest/Support/ManagedStatic.cpp - ManagedStatic tests ------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+#include "llvm/Support/ManagedStatic.h"
+#include "llvm/Support/Threading.h"
+#include <pthread.h>
+
+#include "gtest/gtest.h"
+
+using namespace llvm;
+
+namespace {
+
+namespace test1 {
+  llvm::ManagedStatic<int> ms;
+  void *helper(void*) {
+    *ms;
+    return NULL;
+  }
+}
+
+TEST(Initialize, MultipleThreads) {
+  // Run this test under tsan: http://code.google.com/p/data-race-test/
+
+  llvm_start_multithreaded();
+  pthread_t t1, t2;
+  pthread_create(&t1, NULL, test1::helper, NULL);
+  pthread_create(&t2, NULL, test1::helper, NULL);
+  pthread_join(t1, NULL);
+  pthread_join(t2, NULL);
+  llvm_stop_multithreaded();
+}
+
+} // anonymous namespace