diff --git a/compiler/utils/atomic_dex_ref_map-inl.h b/compiler/utils/atomic_dex_ref_map-inl.h
index c41d8fc..14f1f0b 100644
--- a/compiler/utils/atomic_dex_ref_map-inl.h
+++ b/compiler/utils/atomic_dex_ref_map-inl.h
@@ -54,6 +54,15 @@
 }
 
 template <typename T>
+inline void AtomicDexRefMap<T>::AddDexFiles(const std::vector<const DexFile*>& dex_files) {
+  for (const DexFile* dex_file : dex_files) {
+    if (!HaveDexFile(dex_file)) {
+      AddDexFile(dex_file, dex_file->NumClassDefs());
+    }
+  }
+}
+
+template <typename T>
 inline typename AtomicDexRefMap<T>::ElementArray* AtomicDexRefMap<T>::GetArray(
     const DexFile* dex_file) {
   auto it = arrays_.find(dex_file);