1 files changed, 17 insertions, 0 deletions
diff --git a/test/SemaTemplate/ctad.cpp b/test/SemaTemplate/ctad.cpp
new file mode 100644
index 0000000000..f2944655b3
--- /dev/null
+++ b/test/SemaTemplate/ctad.cpp
@@ -0,0 +1,17 @@
+// RUN: %clang_cc1 -std=c++17 -verify %s
+
+// expected-no-diagnostics
+namespace pr41427 {
+  template <typename T> class A {
+  public:
+    A(void (*)(T)) {}
+  };
+  
+  void D(int) {}
+  
+  void f() {
+    A a(&D);
+    using T = decltype(a);
+    using T = A<int>;
+  }
+}