diff --git a/compiler/optimizing/nodes_arm64.h b/compiler/optimizing/nodes_arm64.h
index 737aece..06b073c 100644
--- a/compiler/optimizing/nodes_arm64.h
+++ b/compiler/optimizing/nodes_arm64.h
@@ -56,8 +56,8 @@
   }
 
   bool CanBeMoved() const OVERRIDE { return true; }
-  bool InstructionDataEquals(HInstruction* other_instr) const OVERRIDE {
-    HArm64DataProcWithShifterOp* other = other_instr->AsArm64DataProcWithShifterOp();
+  bool InstructionDataEquals(const HInstruction* other_instr) const OVERRIDE {
+    const HArm64DataProcWithShifterOp* other = other_instr->AsArm64DataProcWithShifterOp();
     return instr_kind_ == other->instr_kind_ &&
         op_kind_ == other->op_kind_ &&
         shift_amount_ == other->shift_amount_;
@@ -106,7 +106,9 @@
   }
 
   bool CanBeMoved() const OVERRIDE { return true; }
-  bool InstructionDataEquals(HInstruction* other ATTRIBUTE_UNUSED) const OVERRIDE { return true; }
+  bool InstructionDataEquals(const HInstruction* other ATTRIBUTE_UNUSED) const OVERRIDE {
+    return true;
+  }
   bool IsActualObject() const OVERRIDE { return false; }
 
   HInstruction* GetBaseAddress() const { return InputAt(0); }