diff --git a/clang/lib/AST/Type.cpp b/clang/lib/AST/Type.cpp
--- a/clang/lib/AST/Type.cpp
+++ b/clang/lib/AST/Type.cpp
@@ -1801,6 +1801,9 @@
     }
 
     // Only these types can contain the desired 'auto' type.
+    Type *VisitSubstTemplateTypeParmType(SubstTemplateTypeParmType const *T) {
+      return Visit(T->getReplacementType());
+    }
 
     Type *VisitElaboratedType(const ElaboratedType *T) {
       return Visit(T->getNamedType());
diff --git a/clang/test/SemaCXX/crash-auto-36064.cpp b/clang/test/SemaCXX/crash-auto-36064.cpp
new file mode 100644
--- /dev/null
+++ b/clang/test/SemaCXX/crash-auto-36064.cpp
@@ -0,0 +1,8 @@
+// RUN: %clang_cc1 -fsyntax-only -std=c++11 %s -verify
+template <typename A, decltype(new A)> // expected-error{{new expression for type 'auto' requires a constructor argument}}
+struct b;
+struct d {
+  static auto c = ;              // expected-error{{expected expression}}
+  decltype(b<decltype(c), int>); // expected-error{{expected '(' for function-style cast or type construction}}
+                                 // expected-note@-1{{while substituting prior template arguments into non-type template parameter [with A = auto]}}
+};