diff --git a/llvm/lib/ExecutionEngine/MCJIT/MCJIT.cpp b/llvm/lib/ExecutionEngine/MCJIT/MCJIT.cpp
index 82647ea94401..2c663c2e1edf 100644
--- a/llvm/lib/ExecutionEngine/MCJIT/MCJIT.cpp
+++ b/llvm/lib/ExecutionEngine/MCJIT/MCJIT.cpp
@@ -142,8 +142,14 @@ void MCJIT::setObjectCache(ObjectCache* NewCache) {
 }
 
 std::unique_ptr<MemoryBuffer> MCJIT::emitObject(Module *M) {
+  assert(M && "Can not emit a null module");
+
   MutexGuard locked(lock);
 
+  // Materialize all globals in the module if they have not been
+  // materialized already.
+  cantFail(M->materializeAll());
+
   // This must be a module which has already been added but not loaded to this
   // MCJIT instance, since these conditions are tested by our caller,
   // generateCodeForModule.