gcc/testsuite/gnat.dg/null_pointer_deref2.adb

-- { dg-do run }

-- This test requires architecture- and OS-specific support code for unwinding
-- through signal frames (typically located in *-unwind.h) to pass.  Feel free
-- to disable it if this code hasn't been implemented yet.

procedure Null_Pointer_Deref2 is

   pragma Suppress (All_Checks);

   task T;

   task body T is
      type Int_Ptr is access all Integer;

      function Ident return Int_Ptr is
      begin
        return null;
      end;
      Data : Int_Ptr := Ident;
   begin
      Data.all := 1;
   exception
      when others => null;
   end T;

begin
   null;
end;