Index: include/llvm/CodeGen/BasicTTIImpl.h
===================================================================
--- include/llvm/CodeGen/BasicTTIImpl.h
+++ include/llvm/CodeGen/BasicTTIImpl.h
@@ -586,7 +586,7 @@
       SmallVector<Type *, 4> Types;
       for (Value *Op : Args)
         Types.push_back(Op->getType());
-      return getIntrinsicInstrCost(IID, RetTy, Types);
+      return static_cast<T *>(this)->getIntrinsicInstrCost(IID, RetTy, Types);
     }
     case Intrinsic::masked_scatter: {
       Value *Mask = Args[3];