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112 lines
3.0 KiB
ObjectPascal
112 lines
3.0 KiB
ObjectPascal
{
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$Id$
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Copyright (c) 1998-2003 by Florian Klaempfl
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This unit implements the arm specific class for the register
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allocator
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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****************************************************************************
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}
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unit rgcpu;
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{$i fpcdefs.inc}
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interface
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uses
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aasmbase,aasmtai,
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cginfo,
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cpubase,
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rgobj;
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type
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trgcpu = class(trgobj)
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{
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function getexplicitregisterfpu(list : taasmoutput; r : Toldregister) : tregister;override;
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procedure ungetregisterfpu(list: taasmoutput; r : tregister; size:TCGsize);override;
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procedure cleartempgen; override;
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private
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usedpararegs: Tsupregset;
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usedparafpuregs: tregisterset;
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}
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end;
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implementation
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uses
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cgobj, verbose, cutils;
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{
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function trgcpu.getexplicitregisterfpu(list : taasmoutput; r : Toldregister) : tregister;
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begin
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if (r in [R_F0..R_F3]) and
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not is_reg_var_other[r] then
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begin
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if r in usedparafpuregs then
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internalerror(2003060902);
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include(usedparafpuregs,r);
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result.enum := r;
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cg.a_reg_alloc(list,result);
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end
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else
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result:=inherited getexplicitregisterfpu(list,r);
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end;
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procedure trgcpu.ungetregisterfpu(list: taasmoutput; r : tregister; size:TCGsize);
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begin
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if (r.enum in [R_F0..R_F3]) and
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not is_reg_var_other[r.enum] then
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begin
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if not(r.enum in usedparafpuregs) then
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internalerror(2003060903);
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exclude(usedparafpuregs,r.enum);
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cg.a_reg_dealloc(list,r);
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end
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else
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inherited ungetregisterfpu(list,r,size);
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end;
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procedure trgcpu.cleartempgen;
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begin
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inherited cleartempgen;
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usedpararegs := [];
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usedparafpuregs := [];
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end;
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}
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initialization
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rg := trgcpu.create(last_int_supreg-first_int_supreg+1);
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end.
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{
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$Log$
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Revision 1.3 2003-09-04 00:15:29 florian
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* first bunch of adaptions of arm compiler for new register type
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Revision 1.2 2003/08/25 23:20:38 florian
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+ started to implement FPU support for the ARM
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* fixed a lot of other things
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Revision 1.1 2003/08/16 13:23:01 florian
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* several arm related stuff fixed
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}
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