diff --git a/compiler/utils/arm/assembler_arm_vixl.h b/compiler/utils/arm/assembler_arm_vixl.h
index 66b22ea..9c11fd3 100644
--- a/compiler/utils/arm/assembler_arm_vixl.h
+++ b/compiler/utils/arm/assembler_arm_vixl.h
@@ -178,6 +178,7 @@
   //
   // Heap poisoning.
   //
+
   // Poison a heap reference contained in `reg`.
   void PoisonHeapReference(vixl32::Register reg);
   // Unpoison a heap reference contained in `reg`.
@@ -187,6 +188,15 @@
   // Unpoison a heap reference contained in `reg` if heap poisoning is enabled.
   void MaybeUnpoisonHeapReference(vixl32::Register reg);
 
+  // Emit code checking the status of the Marking Register, and aborting
+  // the program if MR does not match the value stored in the art::Thread
+  // object.
+  //
+  // Argument `temp` is used as a temporary register to generate code.
+  // Argument `code` is used to identify the different occurrences of
+  // MaybeGenerateMarkingRegisterCheck and is passed to the BKPT instruction.
+  void GenerateMarkingRegisterCheck(vixl32::Register temp, int code = 0);
+
   void StoreToOffset(StoreOperandType type,
                      vixl32::Register reg,
                      vixl32::Register base,