diff --git a/llvm/lib/Target/ARM/ARMISelLowering.cpp b/llvm/lib/Target/ARM/ARMISelLowering.cpp
index 8d04f59b95c5..e947ddc70314 100644
--- a/llvm/lib/Target/ARM/ARMISelLowering.cpp
+++ b/llvm/lib/Target/ARM/ARMISelLowering.cpp
@@ -3135,7 +3135,7 @@ static SDValue promoteToConstantPool(const GlobalValue *GV, SelectionDAG &DAG,
   return DAG.getNode(ARMISD::Wrapper, dl, MVT::i32, CPAddr);
 }
 
-static bool isReadOnly(const GlobalValue *GV) {
+bool ARMTargetLowering::isReadOnly(const GlobalValue *GV) const {
   if (const GlobalAlias *GA = dyn_cast<GlobalAlias>(GV))
     GV = GA->getBaseObject();
   return (isa<GlobalVariable>(GV) && cast<GlobalVariable>(GV)->isConstant()) ||
diff --git a/llvm/lib/Target/ARM/ARMISelLowering.h b/llvm/lib/Target/ARM/ARMISelLowering.h
index fd93629f0844..40cf54586af0 100644
--- a/llvm/lib/Target/ARM/ARMISelLowering.h
+++ b/llvm/lib/Target/ARM/ARMISelLowering.h
@@ -275,6 +275,8 @@ class InstrItineraryData;
       return (Kind != ScalarCondVectorVal);
     }
 
+    bool isReadOnly(const GlobalValue *GV) const;
+
     /// getSetCCResultType - Return the value type to use for ISD::SETCC.
     EVT getSetCCResultType(const DataLayout &DL, LLVMContext &Context,
                            EVT VT) const override;