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b7fe6797bf
http://svn.freepascal.org/svn/fpc/branches/linker/compiler ........ r2921 | peter | 2006-03-15 08:35:00 +0100 (Wed, 15 Mar 2006) | 2 lines * pass ObjectWriter to ObjectOuput ........ r2922 | peter | 2006-03-15 12:40:30 +0100 (Wed, 15 Mar 2006) | 2 lines * refactor asmdata ........ r2925 | peter | 2006-03-15 16:09:39 +0100 (Wed, 15 Mar 2006) | 3 lines * add cfi to asmdata * move asmlist, asmcfi, asmdata to own unit ........ git-svn-id: trunk@2932 -
131 lines
3.9 KiB
ObjectPascal
131 lines
3.9 KiB
ObjectPascal
{
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Copyright (c) 1998-2002 by Florian Klaempfl
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This unit implements the powerpc 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,aasmdata,
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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 getcpuregisterint(list: TAsmList; reg: Tnewregister): tregister; override;
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procedure ungetregisterint(list: TAsmList; reg: tregister); override;
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function getcpuregisterfpu(list : TAsmList; r : Toldregister) : tregister;override;
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procedure ungetregisterfpu(list: TAsmList; 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.getcpuregisterint(list: TAsmList; reg: Tnewregister): tregister;
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begin
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if ((reg shr 8) in [RS_R0]) and
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not((reg shr 8) in is_reg_var_int) then
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begin
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if (reg shr 8) in usedpararegs then
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internalerror(2003060701);
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{ comment(v_warning,'Double allocation of register '+tostr((reg shr 8)-1));}
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include(usedpararegs,reg shr 8);
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result.enum:=R_INTREGISTER;
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result.number:=reg;
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cg.a_reg_alloc(list,result);
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end
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else result := inherited getcpuregisterint(list,reg);
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end;
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procedure trgcpu.ungetregisterint(list: TAsmList; reg: tregister);
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begin
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if ((reg.number shr 8) in [RS_R0]) and
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not((reg.number shr 8) in is_reg_var_int) then
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begin
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if not((reg.number shr 8) in usedpararegs) then
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internalerror(2003060702);
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{ comment(v_warning,'Double free of register '+tostr((reg.number shr 8)-1));}
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exclude(usedpararegs,reg.number shr 8);
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cg.a_reg_dealloc(list,reg);
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end
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else
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inherited ungetregisterint(list,reg);
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end;
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function trgcpu.getcpuregisterfpu(list : TAsmList; r : Toldregister) : tregister;
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begin
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if (r in [R_F1..R_F13]) 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 getcpuregisterfpu(list,r);
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end;
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procedure trgcpu.ungetregisterfpu(list: TAsmList; r : tregister; size:TCGsize);
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begin
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if (r.enum in [R_F1..R_F13]) 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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end.
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