diff --git a/llvm/lib/Target/NVPTX/NVPTXISelLowering.cpp b/llvm/lib/Target/NVPTX/NVPTXISelLowering.cpp
index 9e9c05adce49e..8080e8404e427 100644
--- a/llvm/lib/Target/NVPTX/NVPTXISelLowering.cpp
+++ b/llvm/lib/Target/NVPTX/NVPTXISelLowering.cpp
@@ -1666,8 +1666,7 @@ std::string NVPTXTargetLowering::getPrototype(
   return Prototype;
 }
 
-Align NVPTXTargetLowering::getArgumentAlignment(SDValue Callee,
-                                                const CallBase *CB, Type *Ty,
+Align NVPTXTargetLowering::getArgumentAlignment(const CallBase *CB, Type *Ty,
                                                 unsigned Idx,
                                                 const DataLayout &DL) const {
   if (!CB) {
@@ -1794,7 +1793,7 @@ SDValue NVPTXTargetLowering::LowerCall(TargetLowering::CallLoweringInfo &CLI,
       if (IsVAArg)
         VAOffset = alignTo(VAOffset, ArgAlign);
     } else {
-      ArgAlign = getArgumentAlignment(Callee, CB, Ty, ParamCount + 1, DL);
+      ArgAlign = getArgumentAlignment(CB, Ty, ParamCount + 1, DL);
     }
 
     unsigned TypeSize =
@@ -1976,7 +1975,7 @@ SDValue NVPTXTargetLowering::LowerCall(TargetLowering::CallLoweringInfo &CLI,
                           DeclareRetOps);
       InGlue = Chain.getValue(1);
     } else {
-      retAlignment = getArgumentAlignment(Callee, CB, RetTy, 0, DL);
+      retAlignment = getArgumentAlignment(CB, RetTy, 0, DL);
       assert(retAlignment && "retAlignment is guaranteed to be set");
       SDVTList DeclareRetVTs = DAG.getVTList(MVT::Other, MVT::Glue);
       SDValue DeclareRetOps[] = {
@@ -2107,7 +2106,7 @@ SDValue NVPTXTargetLowering::LowerCall(TargetLowering::CallLoweringInfo &CLI,
     ComputePTXValueVTs(*this, DL, RetTy, VTs, &Offsets, 0);
     assert(VTs.size() == Ins.size() && "Bad value decomposition");
 
-    Align RetAlign = getArgumentAlignment(Callee, CB, RetTy, 0, DL);
+    Align RetAlign = getArgumentAlignment(CB, RetTy, 0, DL);
     auto VectorInfo = VectorizePTXValueVTs(VTs, Offsets, RetAlign);
 
     SmallVector<EVT, 6> LoadVTs;
diff --git a/llvm/lib/Target/NVPTX/NVPTXISelLowering.h b/llvm/lib/Target/NVPTX/NVPTXISelLowering.h
index 18e6179b06819..5d3fd992812ef 100644
--- a/llvm/lib/Target/NVPTX/NVPTXISelLowering.h
+++ b/llvm/lib/Target/NVPTX/NVPTXISelLowering.h
@@ -637,8 +637,8 @@ class NVPTXTargetLowering : public TargetLowering {
                           SelectionDAG &DAG) const override;
   SDValue PerformDAGCombine(SDNode *N, DAGCombinerInfo &DCI) const override;
 
-  Align getArgumentAlignment(SDValue Callee, const CallBase *CB, Type *Ty,
-                             unsigned Idx, const DataLayout &DL) const;
+  Align getArgumentAlignment(const CallBase *CB, Type *Ty, unsigned Idx,
+                             const DataLayout &DL) const;
 };
 
 } // namespace llvm