Add a new 'type_visibility' attribute to allow users to

control the visibility of a type for the purposes of RTTI
and template argument restrictions independently of how
visibility propagates to its non-type member declarations.

Also fix r175326 to not ignore template argument visibility
on a template explicit instantiation when a member has
an explicit attribute but the instantiation does not.

The type_visibility work is rdar://11880378

llvm-svn: 175587

1 files changed, 12 insertions, 0 deletions

diff --git a/clang/test/CodeGenCXX/visibility.cpp b/clang/test/CodeGenCXX/visibility.cpp
index 5564dc40195..cfddc8c0c29 100644
--- a/clang/test/CodeGenCXX/visibility.cpp
+++ b/clang/test/CodeGenCXX/visibility.cpp
@@ -1170,3 +1170,15 @@ namespace test63 {
   // CHECK: define linkonce_odr hidden void @_ZN6test631A3fooILNS_1EE0EEEvv()
   // CHECK: define linkonce_odr hidden void @_ZN6test631A1BILNS_1EE0EE3fooEv()
 }
+
+// Don't ignore the visibility of template arguments just because we
+// explicitly instantiated something.
+namespace test64 {
+  struct HIDDEN A {};
+  template <class P> struct B {
+    static DEFAULT void foo() {}
+  };
+
+  template class B<A>;
+  // CHECK: define weak_odr hidden void @_ZN6test641BINS_1AEE3fooEv()
+}