diff --git a/llvm/include/llvm/Analysis/TargetTransformInfoImpl.h b/llvm/include/llvm/Analysis/TargetTransformInfoImpl.h
--- a/llvm/include/llvm/Analysis/TargetTransformInfoImpl.h
+++ b/llvm/include/llvm/Analysis/TargetTransformInfoImpl.h
@@ -681,6 +681,8 @@
 
   int getGEPCost(Type *PointeeType, const Value *Ptr,
                  ArrayRef<const Value *> Operands) {
+    if (Ptr == nullptr)
+      return TTI::TCC_Basic;
     const GlobalValue *BaseGV = nullptr;
     if (Ptr != nullptr) {
       // TODO: will remove this when pointers have an opaque type.