Subversion Repositories openrisc_2011-10-31

--  { dg-do run }

--  { dg-options "-gnatws" }

with Text_IO;

procedure renaming2 is

    type RealNodeData;

    type RefRealNodeData is access RealNodeData;

    type ExpressionEntry;

    type RefExpression is access ExpressionEntry;

    type RefDefUseEntry is access Natural;

    type ExpressionEntry is

    record

        Number : RefDefUseEntry;

        Id     : Integer;

    end record;

    type RealNodeData is

    record

        Node   : RefExpression;

        Id     : Integer;

    end record;

    for ExpressionEntry use

    record

        Number at 0 range  0 .. 63;

        Id     at 8 range  0 .. 31;

    end record ;

    for RealNodeData use

    record

        Node   at  0 range  0 .. 63;

        Id     at 8 range  0 .. 31;

    end record ;

    U_Node : RefDefUseEntry := new Natural'(1);

    E_Node : RefExpression := new ExpressionEntry'(Number => U_Node,

                                                   Id => 2);

    R_Node : RefRealNodeData := new RealNodeData'(Node => E_Node,

                                                   Id => 3);

    procedure test_routine (NodeRealData : RefRealNodeData)

    is

        OldHead   : RefDefUseEntry renames NodeRealData.all.Node.all.Number;

        OldHead1  : constant RefDefUseEntry := OldHead;

    begin

      NodeRealData.all.Node := new ExpressionEntry'(Number => null, Id => 4);

      declare

        OldHead2 : constant RefDefUseEntry := OldHead;

      begin

        if OldHead1 /= OldHead2

        then

          Text_IO.Put_Line (" OldHead changed !!!");

        end if;

      end;

    end;

begin

  test_routine (R_Node);

end;