diff --git a/clang/lib/Analysis/FlowSensitive/TypeErasedDataflowAnalysis.cpp b/clang/lib/Analysis/FlowSensitive/TypeErasedDataflowAnalysis.cpp
--- a/clang/lib/Analysis/FlowSensitive/TypeErasedDataflowAnalysis.cpp
+++ b/clang/lib/Analysis/FlowSensitive/TypeErasedDataflowAnalysis.cpp
@@ -339,8 +339,8 @@
   PostOrderCFGView POV(&CFCtx.getCFG());
   ForwardDataflowWorklist Worklist(CFCtx.getCFG(), &POV);
 
-  std::vector<llvm::Optional<TypeErasedDataflowAnalysisState>> BlockStates;
-  BlockStates.resize(CFCtx.getCFG().size(), llvm::None);
+  std::vector<llvm::Optional<TypeErasedDataflowAnalysisState>> BlockStates(
+      CFCtx.getCFG().size(), llvm::None);
 
   // The entry basic block doesn't contain statements so it can be skipped.
   const CFGBlock &Entry = CFCtx.getCFG().getEntry();