--- /dev/null
+package deref1 is
+ type T is tagged limited null record;
+ procedure Op (Obj : in out T);
+end deref1;
--- /dev/null
+with deref1;
+package deref2 is
+ type NT is tagged limited private;
+
+ function PT_View (Obj : not null access NT)
+ return not null access deref1.T'Class;
+private
+ type PT (Obj : not null access NT) is new deref1.T with null record;
+
+ type NT is tagged limited record
+ PT_View : aliased PT (NT'Access);
+ end record;
+end;
--- /dev/null
+-- { dg-do compile }
+
+with deref2;
+procedure deref3 is
+ Obj : aliased deref2.NT;
+begin
+ deref2.PT_View (Obj'Access).Op;
+ Obj.PT_View.all.Op;
+ Obj.PT_View.Op;
+end;
--- /dev/null
+-- { dg-do compile }
+
+procedure Discr_Test is
+ procedure P is begin null; end P;
+
+ task type Tsk1 is
+ entry rvT;
+ end Tsk1;
+
+ task body Tsk1 is
+ begin
+ accept rvT;
+ end Tsk1;
+
+ task type Tsk2 (pS : not null access procedure) is
+ entry rvT;
+ end Tsk2;
+
+ task body Tsk2 is
+ tskT : Tsk1;
+ begin
+ accept rvT do
+ requeue tskT.rvT;
+ end rvT;
+ pS.all;
+ end;
+
+ Obj : Tsk2 (P'access);
+begin
+ Obj.rvT;
+end;
--- /dev/null
+package body elim1 is
+ procedure d (a : t) is
+ begin
+ null;
+ end;
+end;
--- /dev/null
+pragma Eliminate (p, d);
+package elim1 is
+ type t is tagged null record;
+ procedure d (a : t);
+end;
--- /dev/null
+-- { dg-do run }
+
+with elim1;
+procedure elim2 is
+begin
+ null;
+end;
--- /dev/null
+-- { dg-do compile }
+
+package limited1 is
+ pragma Pure;
+
+ type Buffer is limited interface;
+ type Synchronous_Buffer_Type is synchronized interface and Buffer;
+ type Client_Buffer_Type is new Synchronous_Buffer_Type with private;
+
+private
+ type Client_Buffer_Type is new Synchronous_Buffer_Type with null record;
+end limited1;