Index: clang/lib/StaticAnalyzer/Checkers/UninitializedObjectChecker.cpp
===================================================================
--- clang/lib/StaticAnalyzer/Checkers/UninitializedObjectChecker.cpp
+++ clang/lib/StaticAnalyzer/Checkers/UninitializedObjectChecker.cpp
@@ -417,7 +417,7 @@
       continue;
     }
 
-    if (T->isPointerType() || T->isReferenceType() || T->isBlockPointerType()) {
+    if (T->isAnyPointerType() || T->isReferenceType() || T->isBlockPointerType()) {
       if (isPointerOrReferenceUninit(FR, LocalChain))
         ContainsUninitField = true;
       continue;
@@ -477,7 +477,7 @@
 bool FindUninitializedFields::isPointerOrReferenceUninit(
     const FieldRegion *FR, FieldChainInfo LocalChain) {
 
-  assert((FR->getDecl()->getType()->isPointerType() ||
+  assert((FR->getDecl()->getType()->isAnyPointerType() ||
           FR->getDecl()->getType()->isReferenceType() ||
           FR->getDecl()->getType()->isBlockPointerType()) &&
          "This method only checks pointer/reference objects!");
Index: clang/test/Analysis/objcpp-uninitialized-object.mm
===================================================================
--- clang/test/Analysis/objcpp-uninitialized-object.mm
+++ clang/test/Analysis/objcpp-uninitialized-object.mm
@@ -20,3 +20,13 @@
 void noWarningWhenInitialized() {
   StructWithBlock a;
 }
+
+struct StructWithId {
+  int a;
+  id z; // expected-note{{uninitialized field 'this->z'}}
+  StructWithId() : a(0) {} // expected-warning{{1 uninitialized field at the end of the constructor call}}
+};
+
+void warnOnUninitializedId() {
+  StructWithId s;
+}