diff --git a/clang/lib/AST/DeclPrinter.cpp b/clang/lib/AST/DeclPrinter.cpp
--- a/clang/lib/AST/DeclPrinter.cpp
+++ b/clang/lib/AST/DeclPrinter.cpp
@@ -309,6 +309,8 @@
   for (const auto *BMInitializer : CDecl->inits()) {
     if (BMInitializer->isInClassMemberInitializer())
       continue;
+    if (!BMInitializer->isWritten())
+      continue;
 
     if (!HasInitializerList) {
       Proto += " : ";
diff --git a/clang/test/AST/ast-print-method-decl.cpp b/clang/test/AST/ast-print-method-decl.cpp
--- a/clang/test/AST/ast-print-method-decl.cpp
+++ b/clang/test/AST/ast-print-method-decl.cpp
@@ -100,3 +100,26 @@
 
   // CHECK-NEXT: };
 };
+
+
+// ---- Check that implict (non-written) constructor initializers are not output
+
+struct ImplicitCtorInit1 {
+  int a;
+};
+
+// CHECK: struct ImplicitCtorInit2 : ImplicitCtorInit1 {
+struct ImplicitCtorInit2 : ImplicitCtorInit1 {
+
+  // CHECK-NEXT: ImplicitCtorInit2(int *) {
+  ImplicitCtorInit2(int *) {
+  // CHECK-NEXT: }
+  }
+
+  // CHECK-NEXT: ImplicitCtorInit2(int **) : ImplicitCtorInit1() {
+  ImplicitCtorInit2(int **) : ImplicitCtorInit1() {
+  // CHECK-NEXT: }
+  }
+
+  // CHECK-NEXT: };
+};