fpc/compiler/i386/n386set.pas
Jonas Maebe aee5380ae0 * merged trunk up to r20882
o support for the new codepage-aware ansistrings in the jvm branch
   o empty ansistrings are now always represented by a nil pointer rather than
     by an empty string, because an empty string also has a code page which
     can confuse code (although this will make ansistrings harder to use
     in Java code)
   o more string helpers code shared between the general and jvm rtl
   o support for indexbyte/word in the jvm rtl (warning: first parameter
     is an open array rather than an untyped parameter there, so
     indexchar(pcharvar^,10,0) will be equivalent to
     indexchar[pcharvar^],10,0) there, which is different from what is
     intended; changing it to an untyped parameter wouldn't help though)
   o default() support is not yet complete
   o calling fpcres is currently broken due to limitations in
     sysutils.executeprocess() regarding handling unix quoting and
     the compiler using the same command lines for scripts and directly
     calling external programs
   o compiling the Java compiler currently requires adding ALLOW_WARNINGS=1
     to the make command line

git-svn-id: branches/jvmbackend@20887 -
2012-04-15 15:54:10 +00:00

73 lines
2.2 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:aint;var max_dist:aword);override;
end;
implementation
uses
systems,
verbose,globals,constexp,
symconst,symdef,defutil,
aasmbase,aasmtai,aasmdata,aasmcpu,
cgbase,pass_2,
ncon,
cpubase,cpuinfo,procinfo,
cga,cgutils,cgobj,ncgutil,
cgx86;
{*****************************************************************************
TI386CASENODE
*****************************************************************************}
procedure ti386casenode.optimizevalues(var max_linear_list:aint;var max_dist:aword);
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 in [cpu_Pentium2,cpu_Pentium3] then
inc(max_linear_list,9)
else if current_settings.optimizecputype=cpu_Pentium4 then
inc(max_linear_list,14);
end;
begin
ccasenode:=ti386casenode;
end.