fpc/compiler/i386/n386set.pas
Jonas Maebe 07bd4ba517 * let all the case code generation work with tconstexprint instead of aint,
so it also works for 32 bit targets and a high level code generator
    (where aint is still 32 bit, but 64 bit operations are not decomposed)

git-svn-id: trunk@41441 -
2019-02-24 19:58:37 +00:00

65 lines
2.0 KiB
ObjectPascal

{
Copyright (c) 1998-2002 by Florian Klaempfl
Generate i386 assembler for in set/case nodes
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 n386set;
{$i fpcdefs.inc}
interface
uses
globtype,
node,nset,pass_1,nx86set;
type
ti386casenode = class(tx86casenode)
procedure optimizevalues(var max_linear_list:int64;var max_dist:qword);override;
end;
implementation
uses
globals,cpuinfo;
{*****************************************************************************
TI386CASENODE
*****************************************************************************}
procedure ti386casenode.optimizevalues(var max_linear_list:int64;var max_dist:qword);
begin
{ a jump table crashes the pipeline! }
if current_settings.optimizecputype=cpu_386 then
inc(max_linear_list,3)
else if current_settings.optimizecputype=cpu_Pentium then
inc(max_linear_list,6)
else if current_settings.optimizecputype=cpu_Pentium4 then
inc(max_linear_list,14)
else
{ default, also fine for cpu_Pentium2, cpu_Pentium3, cpu_PentiumM }
inc(max_linear_list,9);
end;
begin
ccasenode:=ti386casenode;
end.