freepascal.compiler/compiler/optbase.pas

{
    Basic node optimizer stuff

    Copyright (c) 2007 by Florian Klaempfl

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

 ****************************************************************************
}
unit optbase;

{$i fpcdefs.inc}

  interface

    uses
      globtype;

    type
      tdfaset = array of byte;

      toptinfo = record
        { index of the current node inside the dfa sets, aword(-1) if no entry }
        index : aword;
        defined_nodes : tdfaset;
        used_nodes : tdfaset;
      end;

      poptinfo = ^toptinfo;

  implementation

end.