diff --git a/clang/include/clang/AST/RecursiveASTVisitor.h b/clang/include/clang/AST/RecursiveASTVisitor.h
--- a/clang/include/clang/AST/RecursiveASTVisitor.h
+++ b/clang/include/clang/AST/RecursiveASTVisitor.h
@@ -2023,7 +2023,8 @@
   if (CXXConstructorDecl *Ctor = dyn_cast<CXXConstructorDecl>(D)) {
     // Constructor initializers.
     for (auto *I : Ctor->inits()) {
-      TRY_TO(TraverseConstructorInitializer(I));
+      if (I->isWritten() || getDerived().shouldVisitImplicitCode())
+        TRY_TO(TraverseConstructorInitializer(I));
     }
   }
 
diff --git a/clang/unittests/Tooling/RecursiveASTVisitorTests/InitListExprPreOrder.cpp b/clang/unittests/Tooling/RecursiveASTVisitorTests/InitListExprPreOrder.cpp
--- a/clang/unittests/Tooling/RecursiveASTVisitorTests/InitListExprPreOrder.cpp
+++ b/clang/unittests/Tooling/RecursiveASTVisitorTests/InitListExprPreOrder.cpp
@@ -22,11 +22,19 @@
 
   bool shouldVisitImplicitCode() const { return VisitImplicitCode; }
 
+  bool TraverseConstructorInitializer(CXXCtorInitializer *Init) {
+    if (Init->getSourceLocation().isInvalid())
+      InvalidLocsVisited = true;
+    Match("initializer", Init->getSourceLocation());
+    return true;
+  }
+
   bool VisitInitListExpr(InitListExpr *ILE) {
     Match(ILE->isSemanticForm() ? "semantic" : "syntactic", ILE->getBeginLoc());
     return true;
   }
 
+  bool InvalidLocsVisited = false;
 private:
   bool VisitImplicitCode;
 };
@@ -49,4 +57,22 @@
                               InitListExprPreOrderVisitor::Lang_C));
 }
 
+TEST(RecursiveASTVisitor, CXXCtorInitializerVisitNoImplicit) {
+  std::vector<bool> Config{true, false};
+  for (bool VisitImplCode : Config) {
+    InitListExprPreOrderVisitor Visitor(VisitImplCode);
+    Visitor.ExpectMatch("initializer", 7, 17);
+    EXPECT_TRUE(Visitor.runOver(R"cpp(
+        class A {};
+        class B : public A {
+          B() {};
+        };
+        class C : public A {
+          C() : A() {}
+        };
+      )cpp",
+                                InitListExprPreOrderVisitor::Lang_CXX));
+    EXPECT_EQ(Visitor.InvalidLocsVisited, VisitImplCode);
+  }
+}
 } // end anonymous namespace