Index: clang/lib/Analysis/FlowSensitive/Transfer.cpp
===================================================================
--- clang/lib/Analysis/FlowSensitive/Transfer.cpp
+++ clang/lib/Analysis/FlowSensitive/Transfer.cpp
@@ -732,7 +732,11 @@
     Env.setValue(Loc, *Val);
 
     if (Type->isStructureOrClassType()) {
-      for (auto It : llvm::zip(Type->getAsRecordDecl()->fields(), S->inits())) {
+      std::vector<FieldDecl *> Fields;
+      llvm::copy_if(
+          Type->getAsRecordDecl()->fields(), std::back_inserter(Fields),
+          [](const FieldDecl *Field) { return !Field->isUnnamedBitfield(); });
+      for (auto It : llvm::zip(Fields, S->inits())) {
         const FieldDecl *Field = std::get<0>(It);
         assert(Field != nullptr);