diff --git a/compiler/utils/jni_macro_assembler.h b/compiler/utils/jni_macro_assembler.h
index d621122..a9d9f54 100644
--- a/compiler/utils/jni_macro_assembler.h
+++ b/compiler/utils/jni_macro_assembler.h
@@ -111,8 +111,13 @@
   virtual void IncreaseFrameSize(size_t adjust) = 0;
   virtual void DecreaseFrameSize(size_t adjust) = 0;
 
+  // Return the same core register but with correct size if the architecture-specific
+  // ManagedRegister has different representation for different sizes.
+  virtual ManagedRegister CoreRegisterWithSize(ManagedRegister src, size_t size) = 0;
+
   // Store routines
   virtual void Store(FrameOffset offs, ManagedRegister src, size_t size) = 0;
+  virtual void Store(ManagedRegister base, MemberOffset offs, ManagedRegister src, size_t size) = 0;
   virtual void StoreRef(FrameOffset dest, ManagedRegister src) = 0;
   virtual void StoreRawPtr(FrameOffset dest, ManagedRegister src) = 0;
 
@@ -129,6 +134,7 @@
 
   // Load routines
   virtual void Load(ManagedRegister dest, FrameOffset src, size_t size) = 0;
+  virtual void Load(ManagedRegister dest, ManagedRegister base, MemberOffset offs, size_t size) = 0;
 
   virtual void LoadFromThread(ManagedRegister dest,
                               ThreadOffset<kPointerSize> src,