diff --git a/llvm/lib/Support/ManagedStatic.cpp b/llvm/lib/Support/ManagedStatic.cpp
--- a/llvm/lib/Support/ManagedStatic.cpp
+++ b/llvm/lib/Support/ManagedStatic.cpp
@@ -76,8 +76,13 @@
 
 /// llvm_shutdown - Deallocate and destroy all ManagedStatic variables.
 void llvm::llvm_shutdown() {
-  std::lock_guard<std::recursive_mutex> Lock(*getManagedStaticMutex());
+  getManagedStaticMutex()->lock();
 
   while (StaticList)
     StaticList->destroy();
+
+  getManagedStaticMutex()->unlock();
+
+  delete ManagedStaticMutex;
+  ManagedStaticMutex = nullptr;
 }