freepascal.compiler/compiler/i386/cpunode.pas

{
    $Id$
    Copyright (c) 2000 by Florian Klaempfl

    Includes the i386 code generator

    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 cpunode;

{$i fpcdefs.inc}

  interface

  implementation

    uses
       ncgbas,ncgflw,ncgcnv,ncgld,ncgmem,ncgcon,
       n386add,n386cal,n386con,n386cnv,n386flw,n386mat,n386mem,
       n386set,n386inl,n386opt,
       { this not really a node }
       n386obj, rgcpu;

end.
{
  $Log$
  Revision 1.12  2002-05-16 19:46:50  carl
  + defines.inc -> fpcdefs.inc to avoid conflicts if compiling by hand
  + try to fix temp allocation (still in ifdef)
  + generic constructor calls
  + start of tassembler / tmodulebase class cleanup

  Revision 1.10  2002/05/13 19:54:37  peter
    * removed n386ld and n386util units
    * maybe_save/maybe_restore added instead of the old maybe_push

  Revision 1.9  2002/04/19 15:39:35  peter
    * removed some more routines from cga
    * moved location_force_reg/mem to ncgutil
    * moved arrayconstructnode secondpass to ncgld

  Revision 1.8  2002/03/31 20:26:38  jonas
    + a_loadfpu_* and a_loadmm_* methods in tcg
    * register allocation is now handled by a class and is mostly processor
      independent (+rgobj.pas and i386/rgcpu.pas)
    * temp allocation is now handled by a class (+tgobj.pas, -i386\tgcpu.pas)
    * some small improvements and fixes to the optimizer
    * some register allocation fixes
    * some fpuvaroffset fixes in the unary minus node
    * push/popusedregisters is now called rg.save/restoreusedregisters and
      (for i386) uses temps instead of push/pop's when using -Op3 (that code is
      also better optimizable)
    * fixed and optimized register saving/restoring for new/dispose nodes
    * LOC_FPU locations now also require their "register" field to be set to
      R_ST, not R_ST0 (the latter is used for LOC_CFPUREGISTER locations only)
    - list field removed of the tnode class because it's not used currently
      and can cause hard-to-find bugs

  Revision 1.6  2001/09/29 21:32:47  jonas
    * almost all second pass typeconvnode helpers are now processor independent
    * fixed converting boolean to int64/qword
    * fixed register allocation bugs which could cause internalerror 10
    * isnode and asnode are completely processor indepent now as well
    * fpc_do_as now returns its class argument (necessary to be able to use it
      properly with compilerproc)

  Revision 1.5  2001/09/28 20:39:33  jonas
    * changed all flow control structures (except for exception handling
      related things) to processor independent code (in new ncgflw unit)
    + generic cgobj unit which contains lots of code generator helpers with
      global "cg" class instance variable
    + cgcpu unit for i386 (implements processor specific routines of the above
      unit)
    * updated cgbase and cpubase for the new code generator units
    * include ncgflw unit in cpunode unit

  Revision 1.4  2001/05/18 22:31:06  peter
    * tasmnode.pass_2 is independent of cpu, moved to ncgbas
    * include ncgbas for independent nodes

  Revision 1.3  2001/04/21 13:37:17  peter
    * made tclassheader using class of to implement cpu dependent code

  Revision 1.2  2000/12/31 11:14:11  jonas
    + implemented/fixed docompare() mathods for all nodes (not tested)
    + nopt.pas, nadd.pas, i386/n386opt.pas: optimized nodes for adding strings
      and constant strings/chars together
    * n386add.pas: don't copy temp strings (of size 256) to another temp string
      when adding

  Revision 1.1  2000/10/15 09:39:37  peter
    * moved cpu*.pas to i386/
    * renamed n386 to common cpunode

  Revision 1.1  2000/10/14 10:14:47  peter
    * moehrendorf oct 2000 rewrite

}