--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/clang/test/SemaTemplate/instantiate-attr.cpp	Thu Feb 13 15:10:13 2020 +0900
@@ -0,0 +1,36 @@
+// RUN: %clang_cc1 -fsyntax-only -verify %s
+// expected-no-diagnostics
+template <typename T>
+struct A {
+  char a __attribute__((aligned(16)));
+
+  struct B {
+    typedef T __attribute__((aligned(16))) i16;
+    i16 x;
+  };
+};
+int a[sizeof(A<int>) == 16 ? 1 : -1];
+int a2[sizeof(A<int>::B) == 16 ? 1 : -1];
+
+// rdar://problem/8243419
+namespace test1 {
+  template <typename T> struct A {
+    int a;
+    T b[0];
+  } __attribute__((packed));
+
+  typedef A<unsigned long> type;
+
+  int test0[sizeof(type) == 4 ? 1 : -1];
+  int test1[__builtin_offsetof(type, a) == 0 ? 1 : -1];
+  int test2[__builtin_offsetof(type, b) == 4 ? 1 : -1];
+}
+
+namespace test2 {
+  template <class type>
+  struct fastscriptmember {
+      type Member __attribute__ ((packed));
+      char x;
+  };
+  int test0[sizeof(fastscriptmember<int>) == 5 ? 1 : -1];
+}