diff --git a/compiler/optimizing/code_generator_arm64.cc b/compiler/optimizing/code_generator_arm64.cc
index 6272276..1002f2c 100644
--- a/compiler/optimizing/code_generator_arm64.cc
+++ b/compiler/optimizing/code_generator_arm64.cc
@@ -2530,9 +2530,9 @@
   if (instr->GetType() == DataType::Type::kInt64 &&
       codegen_->GetInstructionSetFeatures().NeedFixCortexA53_835769()) {
     MacroAssembler* masm = down_cast<CodeGeneratorARM64*>(codegen_)->GetVIXLAssembler();
-    vixl::aarch64::Instruction* prev =
-        masm->GetCursorAddress<vixl::aarch64::Instruction*>() - kInstructionSize;
-    if (prev->IsLoadOrStore()) {
+    ptrdiff_t off = masm->GetCursorOffset();
+    if (off >= static_cast<ptrdiff_t>(kInstructionSize) &&
+        masm->GetInstructionAt(off - static_cast<ptrdiff_t>(kInstructionSize))->IsLoadOrStore()) {
       // Make sure we emit only exactly one nop.
       ExactAssemblyScope scope(masm, kInstructionSize, CodeBufferCheckScope::kExactSize);
       __ nop();