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	 5a0a6d0d9e
			
		
	
	
		5a0a6d0d9e
		
	
	
	
	
		
			
			statements (some to work around linker bugs, most because they were
    really missing)
git-svn-id: trunk@8673 -
		
	
			
		
			
				
	
	
		
			701 lines
		
	
	
		
			33 KiB
		
	
	
	
		
			ObjectPascal
		
	
	
	
	
	
			
		
		
	
	
			701 lines
		
	
	
		
			33 KiB
		
	
	
	
		
			ObjectPascal
		
	
	
	
	
	
| {
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|     Copyright (c) 1998-2002 by Florian Klaempfl
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| 
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|     Generate assembler for constant nodes which are the same for
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|     all (most) processors
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| 
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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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| 
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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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| 
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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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| }
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| unit ncgcon;
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| 
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| {$i fpcdefs.inc}
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| 
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| interface
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| 
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|     uses
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|        node,ncon;
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| 
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|     type
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|        tcgdataconstnode = class(tdataconstnode)
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|           procedure pass_generate_code;override;
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|        end;
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| 
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|        tcgrealconstnode = class(trealconstnode)
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|           procedure pass_generate_code;override;
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|        end;
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| 
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|        tcgordconstnode = class(tordconstnode)
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|           procedure pass_generate_code;override;
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|        end;
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| 
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|        tcgpointerconstnode = class(tpointerconstnode)
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|           procedure pass_generate_code;override;
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|        end;
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| 
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|        tcgstringconstnode = class(tstringconstnode)
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|           procedure pass_generate_code;override;
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|        end;
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| 
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|        tcgsetconstnode = class(tsetconstnode)
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|           procedure pass_generate_code;override;
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|        end;
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| 
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|        tcgnilnode = class(tnilnode)
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|           procedure pass_generate_code;override;
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|        end;
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| 
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|        tcgguidconstnode = class(tguidconstnode)
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|           procedure pass_generate_code;override;
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|        end;
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| 
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| 
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| implementation
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| 
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|     uses
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|       globtype,widestr,systems,
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|       verbose,globals,cutils,
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|       symconst,symdef,aasmbase,aasmtai,aasmdata,aasmcpu,defutil,
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|       cpuinfo,cpubase,
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|       cgbase,cgobj,cgutils,
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|       ncgutil
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|       ;
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| 
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| 
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| {*****************************************************************************
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|                            TCGREALCONSTNODE
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| *****************************************************************************}
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| 
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|     procedure tcgdataconstnode.pass_generate_code;
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|       var
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|         l : tasmlabel;
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|         i : longint;
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|         b : byte;
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|       begin
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|         location_reset(location,LOC_CREFERENCE,OS_NO);
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|         current_asmdata.getdatalabel(l);
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|         maybe_new_object_file(current_asmdata.asmlists[al_typedconsts]);
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|         new_section(current_asmdata.asmlists[al_typedconsts],sec_rodata,l.name,const_align(maxalign));
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|         current_asmdata.asmlists[al_typedconsts].concat(Tai_label.Create(l));
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|         data.seek(0);
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|         for i:=0 to data.size-1 do
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|           begin
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|             data.read(b,1);
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|             current_asmdata.asmlists[al_typedconsts].concat(Tai_const.Create_8bit(b));
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|           end;
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|         location.reference.symbol:=l;
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|       end;
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| 
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| {*****************************************************************************
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|                            TCGREALCONSTNODE
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| *****************************************************************************}
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| 
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|     procedure tcgrealconstnode.pass_generate_code;
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|       { I suppose the parser/pass_1 must make sure the generated real  }
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|       { constants are actually supported by the target processor? (JM) }
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|       const
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|         floattype2ait:array[tfloattype] of taitype=
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|           (ait_real_32bit,ait_real_64bit,ait_real_80bit,ait_comp_64bit,ait_comp_64bit,ait_real_128bit);
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|       var
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|          hp1 : tai;
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|          lastlabel : tasmlabel;
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|          realait : taitype;
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| {$ifdef ARM}
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|          hiloswapped : boolean;
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| {$endif ARM}
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| 
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|       begin
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|         location_reset(location,LOC_CREFERENCE,def_cgsize(resultdef));
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|         lastlabel:=nil;
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|         realait:=floattype2ait[tfloatdef(resultdef).floattype];
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| {$ifdef ARM}
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|         hiloswapped:=is_double_hilo_swapped;
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| {$endif ARM}
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|         { const already used ? }
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|         if not assigned(lab_real) then
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|           begin
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|              { tries to find an old entry }
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|              hp1:=tai(current_asmdata.asmlists[al_typedconsts].first);
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|              while assigned(hp1) do
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|                begin
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|                   if hp1.typ=ait_label then
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|                     lastlabel:=tai_label(hp1).labsym
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|                   else
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|                     begin
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|                        if (hp1.typ=realait) and (lastlabel<>nil) then
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|                          begin
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|                             if is_number_float(value_real) and
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|                               (
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|                                ((realait=ait_real_32bit) and (tai_real_32bit(hp1).value=value_real) and is_number_float(tai_real_32bit(hp1).value) and (get_real_sign(value_real) = get_real_sign(tai_real_32bit(hp1).value))) or
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|                                ((realait=ait_real_64bit) and
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| {$ifdef ARM}
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|                                  ((tai_real_64bit(hp1).formatoptions=fo_hiloswapped)=hiloswapped) and
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| {$endif ARM}
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|                                  (tai_real_64bit(hp1).value=value_real) and is_number_float(tai_real_64bit(hp1).value) and (get_real_sign(value_real) = get_real_sign(tai_real_64bit(hp1).value))) or
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|                                ((realait=ait_real_80bit) and (tai_real_80bit(hp1).value=value_real) and is_number_float(tai_real_80bit(hp1).value) and (get_real_sign(value_real) = get_real_sign(tai_real_80bit(hp1).value))) or
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| {$ifdef cpufloat128}
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|                                ((realait=ait_real_128bit) and (tai_real_128bit(hp1).value=value_real) and is_number_float(tai_real_128bit(hp1).value) and (get_real_sign(value_real) = get_real_sign(tai_real_128bit(hp1).value))) or
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| {$endif cpufloat128}
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|                                ((realait=ait_comp_64bit) and (tai_comp_64bit(hp1).value=value_real) and is_number_float(tai_comp_64bit(hp1).value) and (get_real_sign(value_real) = get_real_sign(tai_comp_64bit(hp1).value)))
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|                               ) then
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|                               begin
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|                                 { found! }
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|                                 lab_real:=lastlabel;
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|                                 break;
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|                               end;
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|                          end;
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|                        lastlabel:=nil;
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|                     end;
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|                   hp1:=tai(hp1.next);
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|                end;
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|              { :-(, we must generate a new entry }
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|              if not assigned(lab_real) then
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|                begin
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|                   current_asmdata.getdatalabel(lastlabel);
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|                   lab_real:=lastlabel;
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|                   maybe_new_object_file(current_asmdata.asmlists[al_typedconsts]);
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|                   new_section(current_asmdata.asmlists[al_typedconsts],sec_rodata_norel,lastlabel.name,const_align(resultdef.size));
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|                   current_asmdata.asmlists[al_typedconsts].concat(Tai_label.Create(lastlabel));
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|                   case realait of
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|                     ait_real_32bit :
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|                       begin
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|                         current_asmdata.asmlists[al_typedconsts].concat(Tai_real_32bit.Create(ts32real(value_real)));
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|                         { range checking? }
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|                         if ((cs_check_range in current_settings.localswitches) or
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|                           (cs_check_overflow in current_settings.localswitches)) and
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|                           (tai_real_32bit(current_asmdata.asmlists[al_typedconsts].last).value=MathInf.Value) then
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|                           Message(parser_e_range_check_error);
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|                       end;
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| 
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|                     ait_real_64bit :
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|                       begin
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| {$ifdef ARM}
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|                         if hiloswapped then
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|                           current_asmdata.asmlists[al_typedconsts].concat(Tai_real_64bit.Create_hiloswapped(ts64real(value_real)))
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|                         else
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| {$endif ARM}
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|                           current_asmdata.asmlists[al_typedconsts].concat(Tai_real_64bit.Create(ts64real(value_real)));
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| 
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|                         { range checking? }
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|                         if ((cs_check_range in current_settings.localswitches) or
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|                           (cs_check_overflow in current_settings.localswitches)) and
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|                           (tai_real_64bit(current_asmdata.asmlists[al_typedconsts].last).value=MathInf.Value) then
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|                           Message(parser_e_range_check_error);
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|                      end;
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| 
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|                     ait_real_80bit :
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|                       begin
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|                         current_asmdata.asmlists[al_typedconsts].concat(Tai_real_80bit.Create(value_real));
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| 
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|                         { range checking? }
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|                         if ((cs_check_range in current_settings.localswitches) or
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|                           (cs_check_overflow in current_settings.localswitches)) and
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|                           (tai_real_80bit(current_asmdata.asmlists[al_typedconsts].last).value=MathInf.Value) then
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|                           Message(parser_e_range_check_error);
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|                       end;
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| {$ifdef cpufloat128}
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|                     ait_real_128bit :
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|                       begin
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|                         current_asmdata.asmlists[al_typedconsts].concat(Tai_real_128bit.Create(value_real));
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| 
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|                         { range checking? }
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|                         if ((cs_check_range in current_settings.localswitches) or
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|                           (cs_check_overflow in current_settings.localswitches)) and
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|                           (tai_real_128bit(current_asmdata.asmlists[al_typedconsts].last).value=MathInf.Value) then
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|                           Message(parser_e_range_check_error);
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|                       end;
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| {$endif cpufloat128}
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| 
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|                     { the round is necessary for native compilers where comp isn't a float }
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|                     ait_comp_64bit :
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|                       if (value_real>9223372036854775807.0) or (value_real<-9223372036854775808.0) then
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|                         message(parser_e_range_check_error)
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|                       else
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|                         current_asmdata.asmlists[al_typedconsts].concat(Tai_comp_64bit.Create(round(value_real)));
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|                   else
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|                     internalerror(10120);
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|                   end;
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|                end;
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|           end;
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|         location.reference.symbol:=lab_real;
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|       end;
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| 
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| {*****************************************************************************
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|                             TCGORDCONSTNODE
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| *****************************************************************************}
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| 
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|     procedure tcgordconstnode.pass_generate_code;
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|       begin
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|          location_reset(location,LOC_CONSTANT,def_cgsize(resultdef));
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| {$ifdef cpu64bit}
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|          location.value:=value.svalue;
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| {$else cpu64bit}
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|          location.value64:=value.svalue;
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| {$endif cpu64bit}
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|       end;
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| 
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| 
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| {*****************************************************************************
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|                           TCGPOINTERCONSTNODE
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| *****************************************************************************}
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| 
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|     procedure tcgpointerconstnode.pass_generate_code;
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|       begin
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|          { an integer const. behaves as a memory reference }
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|          location_reset(location,LOC_CONSTANT,OS_ADDR);
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|          location.value:=aint(value);
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|       end;
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| 
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| 
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| {*****************************************************************************
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|                           TCGSTRINGCONSTNODE
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| *****************************************************************************}
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| 
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|     procedure tcgstringconstnode.pass_generate_code;
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|       var
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|          hp1,hp2 : tai;
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|          l1,
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|          lastlabel   : tasmlabel;
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|          lastlabelhp : tai;
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|          pc       : pchar;
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|          same_string : boolean;
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|          l,j,
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|          i,mylength  : longint;
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|       begin
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|          { for empty ansistrings we could return a constant 0 }
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|          if (cst_type in [cst_ansistring,cst_widestring]) and (len=0) then
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|           begin
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|             location_reset(location,LOC_CONSTANT,OS_ADDR);
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|             location.value:=0;
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|             exit;
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|           end;
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|          { return a constant reference in memory }
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|          location_reset(location,LOC_CREFERENCE,def_cgsize(resultdef));
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|          { const already used ? }
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|          lastlabel:=nil;
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|          lastlabelhp:=nil;
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|          if not assigned(lab_str) then
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|            begin
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|               if is_shortstring(resultdef) then
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|                 mylength:=len+2
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|               else
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|                 mylength:=len+1;
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|               { widestrings can't be reused yet }
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|               if not(is_widestring(resultdef)) then
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|                 begin
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|                   { tries to find an old entry }
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|                   hp1:=tai(current_asmdata.asmlists[al_typedconsts].first);
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|                   while assigned(hp1) do
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|                     begin
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|                        if hp1.typ=ait_label then
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|                          begin
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|                            lastlabel:=tai_label(hp1).labsym;
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|                            lastlabelhp:=hp1;
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|                          end
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|                        else
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|                          begin
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|                             same_string:=false;
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|                             if (hp1.typ=ait_string) and
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|                                (lastlabel<>nil) and
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|                                (tai_string(hp1).len=mylength) then
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|                               begin
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|                                  case cst_type of
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|                                    cst_conststring:
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|                                      begin
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|                                        j:=0;
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|                                        same_string:=true;
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|                                        if len>0 then
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|                                          begin
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|                                            for i:=0 to len-1 do
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|                                              begin
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|                                                if tai_string(hp1).str[j]<>value_str[i] then
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|                                                  begin
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|                                                    same_string:=false;
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|                                                    break;
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|                                                  end;
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|                                                inc(j);
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|                                              end;
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|                                          end;
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|                                      end;
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|                                    cst_shortstring:
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|                                      begin
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|                                        { if shortstring then check the length byte first and
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|                                          set the start index to 1 }
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|                                        if len=ord(tai_string(hp1).str[0]) then
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|                                          begin
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|                                            j:=1;
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|                                            same_string:=true;
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|                                            if len>0 then
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|                                              begin
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|                                                for i:=0 to len-1 do
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|                                                 begin
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|                                                   if tai_string(hp1).str[j]<>value_str[i] then
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|                                                    begin
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|                                                      same_string:=false;
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|                                                      break;
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|                                                    end;
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|                                                   inc(j);
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|                                                 end;
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|                                              end;
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|                                          end;
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|                                      end;
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|                                    cst_ansistring,
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|                                    cst_widestring :
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|                                      begin
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|                                        { before the string the following sequence must be found:
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|                                          <label>
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|                                            constsymbol <datalabel>
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|                                            constint -1
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|                                            constint <len>
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|                                          we must then return <label> to reuse
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|                                        }
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|                                        hp2:=tai(lastlabelhp.previous);
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|                                        if assigned(hp2) and
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|                                           (hp2.typ=ait_const) and
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|                                           (tai_const(hp2).consttype=aitconst_aint) and
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|                                           (tai_const(hp2).value=len) and
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|                                           assigned(hp2.previous) and
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|                                           (tai(hp2.previous).typ=ait_const) and
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|                                           (tai_const(hp2.previous).consttype=aitconst_aint) and
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|                                           (tai_const(hp2.previous).value=-1) and
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|                                           assigned(hp2.previous.previous) and
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|                                           (tai(hp2.previous.previous).typ=ait_const) and
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|                                           (tai_const(hp2.previous.previous).consttype=aitconst_ptr) and
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|                                           assigned(hp2.previous.previous.previous) and
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|                                           (tai(hp2.previous.previous.previous).typ=ait_label) then
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|                                          begin
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|                                            lastlabel:=tai_label(hp2.previous.previous.previous).labsym;
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|                                            same_string:=true;
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|                                            j:=0;
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|                                            if len>0 then
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|                                              begin
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|                                                for i:=0 to len-1 do
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|                                                 begin
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|                                                   if tai_string(hp1).str[j]<>value_str[i] then
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|                                                    begin
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|                                                      same_string:=false;
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|                                                      break;
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|                                                    end;
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|                                                   inc(j);
 | |
|                                                 end;
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|                                              end;
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|                                          end;
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|                                      end;
 | |
|                                  end;
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|                                  { found ? }
 | |
|                                  if same_string then
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|                                    begin
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|                                      lab_str:=lastlabel;
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|                                      break;
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|                                    end;
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|                               end;
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|                             lastlabel:=nil;
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|                          end;
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|                        hp1:=tai(hp1.next);
 | |
|                     end;
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|                 end;
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|               { :-(, we must generate a new entry }
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|               if not assigned(lab_str) then
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|                 begin
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|                    current_asmdata.getdatalabel(lastlabel);
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|                    lab_str:=lastlabel;
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|                    maybe_new_object_file(current_asmdata.asmlists[al_typedconsts]);
 | |
|                    if (len=0) or
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|                       not(cst_type in [cst_ansistring,cst_widestring]) then
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|                      new_section(current_asmdata.asmlists[al_typedconsts],sec_rodata_norel,lastlabel.name,const_align(sizeof(aint)))
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|                    else
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|                      new_section(current_asmdata.asmlists[al_typedconsts],sec_rodata,lastlabel.name,const_align(sizeof(aint)));
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|                    current_asmdata.asmlists[al_typedconsts].concat(Tai_label.Create(lastlabel));
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|                    { generate an ansi string ? }
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|                    case cst_type of
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|                       cst_ansistring:
 | |
|                         begin
 | |
|                            { an empty ansi string is nil! }
 | |
|                            if len=0 then
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|                              current_asmdata.asmlists[al_typedconsts].concat(Tai_const.Create_sym(nil))
 | |
|                            else
 | |
|                              begin
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|                                 current_asmdata.getdatalabel(l1);
 | |
|                                 current_asmdata.asmlists[al_typedconsts].concat(Tai_const.Create_sym(l1));
 | |
|                                 current_asmdata.asmlists[al_typedconsts].concat(Tai_const.Create_aint(-1));
 | |
|                                 current_asmdata.asmlists[al_typedconsts].concat(Tai_const.Create_aint(len));
 | |
|                                 { make sure the string doesn't get dead stripped if the header is referenced }
 | |
|                                 if (target_info.system in systems_darwin) then
 | |
|                                   current_asmdata.asmlists[al_typedconsts].concat(tai_directive.create(asd_reference,l1.name));
 | |
|                                 current_asmdata.asmlists[al_typedconsts].concat(Tai_label.Create(l1));
 | |
|                                 { ... and vice versa }
 | |
|                                 if (target_info.system in systems_darwin) then
 | |
|                                   current_asmdata.asmlists[al_typedconsts].concat(tai_directive.create(asd_reference,lab_str.name));
 | |
|                                 { include also terminating zero }
 | |
|                                 getmem(pc,len+1);
 | |
|                                 move(value_str^,pc^,len);
 | |
|                                 pc[len]:=#0;
 | |
|                                 current_asmdata.asmlists[al_typedconsts].concat(Tai_string.Create_pchar(pc,len+1));
 | |
|                              end;
 | |
|                         end;
 | |
|                       cst_widestring:
 | |
|                         begin
 | |
|                            { an empty wide string is nil! }
 | |
|                            if len=0 then
 | |
|                              current_asmdata.asmlists[al_typedconsts].concat(Tai_const.Create_sym(nil))
 | |
|                            else
 | |
|                              begin
 | |
|                                 current_asmdata.getdatalabel(l1);
 | |
|                                 current_asmdata.asmlists[al_typedconsts].concat(Tai_const.Create_sym(l1));
 | |
| 
 | |
|                                 { we use always UTF-16 coding for constants }
 | |
|                                 { at least for now                          }
 | |
|                                 { Consts.concat(Tai_const.Create_8bit(2)); }
 | |
|                                 if tf_winlikewidestring in target_info.flags then
 | |
|                                   current_asmdata.asmlists[al_typedconsts].concat(Tai_const.Create_32bit(len*cwidechartype.size))
 | |
|                                 else
 | |
|                                   begin
 | |
|                                     current_asmdata.asmlists[al_typedconsts].concat(Tai_const.Create_aint(-1));
 | |
|                                     current_asmdata.asmlists[al_typedconsts].concat(Tai_const.Create_aint(len*cwidechartype.size));
 | |
|                                   end;
 | |
|                                 { make sure the string doesn't get dead stripped if the header is referenced }
 | |
|                                 if (target_info.system in systems_darwin) then
 | |
|                                   current_asmdata.asmlists[al_typedconsts].concat(tai_directive.create(asd_reference,l1.name));
 | |
|                                 current_asmdata.asmlists[al_typedconsts].concat(Tai_label.Create(l1));
 | |
|                                 { ... and vice versa }
 | |
|                                 if (target_info.system in systems_darwin) then
 | |
|                                   current_asmdata.asmlists[al_typedconsts].concat(tai_directive.create(asd_reference,lab_str.name));
 | |
|                                 for i:=0 to len-1 do
 | |
|                                   current_asmdata.asmlists[al_typedconsts].concat(Tai_const.Create_16bit(pcompilerwidestring(value_str)^.data[i]));
 | |
|                                 { terminating zero }
 | |
|                                 current_asmdata.asmlists[al_typedconsts].concat(Tai_const.Create_16bit(0));
 | |
|                              end;
 | |
|                         end;
 | |
|                       cst_shortstring:
 | |
|                         begin
 | |
|                           { truncate strings larger than 255 chars }
 | |
|                           if len>255 then
 | |
|                            l:=255
 | |
|                           else
 | |
|                            l:=len;
 | |
|                           { include length and terminating zero for quick conversion to pchar }
 | |
|                           getmem(pc,l+2);
 | |
|                           move(value_str^,pc[1],l);
 | |
|                           pc[0]:=chr(l);
 | |
|                           pc[l+1]:=#0;
 | |
|                           current_asmdata.asmlists[al_typedconsts].concat(Tai_string.Create_pchar(pc,l+2));
 | |
|                         end;
 | |
|                       cst_conststring:
 | |
|                         begin
 | |
|                           { include terminating zero }
 | |
|                           getmem(pc,len+1);
 | |
|                           move(value_str^,pc[0],len);
 | |
|                           pc[len]:=#0;
 | |
|                           current_asmdata.asmlists[al_typedconsts].concat(Tai_string.Create_pchar(pc,len+1));
 | |
|                         end;
 | |
|                    end;
 | |
|                 end;
 | |
|            end;
 | |
|          location.reference.symbol:=lab_str;
 | |
|       end;
 | |
| 
 | |
| 
 | |
| {*****************************************************************************
 | |
|                            TCGSETCONSTNODE
 | |
| *****************************************************************************}
 | |
| 
 | |
|     procedure tcgsetconstnode.pass_generate_code;
 | |
|       var
 | |
|          hp1         : tai;
 | |
|          lastlabel   : tasmlabel;
 | |
|          i, diff     : longint;
 | |
|          neededtyp   : taiconst_type;
 | |
|       type
 | |
|          setbytes=array[0..31] of byte;
 | |
|          Psetbytes=^setbytes;
 | |
|       begin
 | |
|         adjustforsetbase;
 | |
| 
 | |
|         { small sets are loaded as constants }
 | |
|         if not(is_varset(resultdef)) then
 | |
|          begin
 | |
|            location_reset(location,LOC_CONSTANT,int_cgsize(resultdef.size));
 | |
|            if (source_info.endian=target_info.endian) then
 | |
|              begin
 | |
| {$if defined(FPC_NEW_BIGENDIAN_SETS) or defined(FPC_LITTLE_ENDIAN)}
 | |
|                { not plongint, because that will "sign extend" the set on 64 bit platforms }
 | |
|                { if changed to "paword", please also modify "32-resultdef.size*8" and      }
 | |
|                { cross-endian code below                                                   }
 | |
|                { Extra aint type cast to avoid range errors                                }
 | |
|                location.value:=aint(pCardinal(value_set)^)
 | |
| {$else}
 | |
|                location.value:=reverse_byte(Psetbytes(value_set)^[0]);
 | |
|                location.value:=location.value or (reverse_byte(Psetbytes(value_set)^[1]) shl 8);
 | |
|                location.value:=location.value or (reverse_byte(Psetbytes(value_set)^[2]) shl 16);
 | |
|                location.value:=location.value or (reverse_byte(Psetbytes(value_set)^[3]) shl 24);
 | |
| {$endif}
 | |
|              end
 | |
|            else
 | |
|              begin
 | |
|                location.value:=swapendian(Pcardinal(value_set)^);
 | |
|                location.value:= reverse_byte (location.value         and $ff)         or
 | |
|                                (reverse_byte((location.value shr  8) and $ff) shl  8) or
 | |
|                                (reverse_byte((location.value shr 16) and $ff) shl 16) or
 | |
|                                (reverse_byte((location.value shr 24) and $ff) shl 24);
 | |
|              end;
 | |
|            if (target_info.endian=endian_big) then
 | |
|              location.value:=location.value shr (32-resultdef.size*8);
 | |
|            exit;
 | |
|          end;
 | |
|         location_reset(location,LOC_CREFERENCE,OS_NO);
 | |
|         neededtyp:=aitconst_8bit;
 | |
|         lastlabel:=nil;
 | |
|         { const already used ? }
 | |
|         if not assigned(lab_set) then
 | |
|           begin
 | |
|              { tries to found an old entry }
 | |
|              hp1:=tai(current_asmdata.asmlists[al_typedconsts].first);
 | |
|              while assigned(hp1) do
 | |
|                begin
 | |
|                   if hp1.typ=ait_label then
 | |
|                     lastlabel:=tai_label(hp1).labsym
 | |
|                   else
 | |
|                     begin
 | |
|                       if (lastlabel<>nil) and
 | |
|                         (hp1.typ=ait_const) and
 | |
|                         (tai_const(hp1).consttype=neededtyp) then
 | |
|                         begin
 | |
|                           if (tai_const(hp1).consttype=aitconst_8bit) then
 | |
|                            begin
 | |
|                              { compare normal set }
 | |
|                              i:=0;
 | |
|                              while assigned(hp1) and (i<32) do
 | |
|                               begin
 | |
|                                 if (source_info.endian=target_info.endian) then
 | |
|                                   begin
 | |
| {$if defined(FPC_NEW_BIGENDIAN_SETS) or defined(FPC_LITTLE_ENDIAN)}
 | |
|                                     if tai_const(hp1).value<>Psetbytes(value_set)^[i ] then
 | |
| {$else}
 | |
|                                     if tai_const(hp1).value<>reverse_byte(Psetbytes(value_set)^[i xor 3]) then
 | |
| {$endif}
 | |
|                                       break
 | |
|                                   end
 | |
|                                 else if tai_const(hp1).value<>reverse_byte(Psetbytes(value_set)^[i]) then
 | |
|                                   break;
 | |
|                                 inc(i);
 | |
|                                 hp1:=tai(hp1.next);
 | |
|                               end;
 | |
|                              if i=32 then
 | |
|                               begin
 | |
|                                 { found! }
 | |
|                                 lab_set:=lastlabel;
 | |
|                                 break;
 | |
|                               end;
 | |
|                              { leave when the end of consts is reached, so no
 | |
|                                hp1.next is done }
 | |
|                              if not assigned(hp1) then
 | |
|                               break;
 | |
|                            end
 | |
|                           else
 | |
|                            begin
 | |
|                              { compare small set }
 | |
|                              if paint(value_set)^=tai_const(hp1).value then
 | |
|                               begin
 | |
|                                 { found! }
 | |
|                                 lab_set:=lastlabel;
 | |
|                                 break;
 | |
|                               end;
 | |
|                            end;
 | |
|                         end;
 | |
|                       lastlabel:=nil;
 | |
|                     end;
 | |
|                   hp1:=tai(hp1.next);
 | |
|                end;
 | |
|              { :-(, we must generate a new entry }
 | |
|              if not assigned(lab_set) then
 | |
|                begin
 | |
|                  current_asmdata.getdatalabel(lastlabel);
 | |
|                  lab_set:=lastlabel;
 | |
|                  maybe_new_object_file(current_asmdata.asmlists[al_typedconsts]);
 | |
|                  new_section(current_asmdata.asmlists[al_typedconsts],sec_rodata_norel,lastlabel.name,const_align(sizeof(aint)));
 | |
|                  current_asmdata.asmlists[al_typedconsts].concat(Tai_label.Create(lastlabel));
 | |
|                  { already handled at the start of this method?? (JM)
 | |
|                  if tsetdef(resultdef).settype=smallset then
 | |
|                   begin
 | |
|                     move(value_set^,i,sizeof(longint));
 | |
|                     Consts.concat(Tai_const.Create_32bit(i));
 | |
|                   end
 | |
|                  else
 | |
|                  }
 | |
|                   begin
 | |
|                     if (source_info.endian=target_info.endian) then
 | |
| {$if defined(FPC_NEW_BIGENDIAN_SETS) or defined(FPC_LITTLE_ENDIAN)}
 | |
|                       for i:=0 to 31 do
 | |
|                         current_asmdata.asmlists[al_typedconsts].concat(Tai_const.Create_8bit(Psetbytes(value_set)^[i]))
 | |
| {$else}
 | |
|                       for i:=0 to 31 do
 | |
|                         current_asmdata.asmlists[al_typedconsts].concat(Tai_const.Create_8bit(reverse_byte(Psetbytes(value_set)^[i xor 3])))
 | |
| {$endif}
 | |
|                     else
 | |
|                       for i:=0 to 31 do
 | |
|                         current_asmdata.asmlists[al_typedconsts].concat(Tai_const.Create_8bit(reverse_byte(Psetbytes(value_set)^[i])));
 | |
|                   end;
 | |
|                end;
 | |
|           end;
 | |
|         location.reference.symbol:=lab_set;
 | |
|       end;
 | |
| 
 | |
| 
 | |
| {*****************************************************************************
 | |
|                              TCGNILNODE
 | |
| *****************************************************************************}
 | |
| 
 | |
|     procedure tcgnilnode.pass_generate_code;
 | |
|       begin
 | |
|          location_reset(location,LOC_CONSTANT,OS_ADDR);
 | |
|          location.value:=0;
 | |
|       end;
 | |
| 
 | |
| 
 | |
| {*****************************************************************************
 | |
|                           TCGPOINTERCONSTNODE
 | |
| *****************************************************************************}
 | |
| 
 | |
|     procedure tcgguidconstnode.pass_generate_code;
 | |
|       var
 | |
|         tmplabel : TAsmLabel;
 | |
|         i : integer;
 | |
|       begin
 | |
|         location_reset(location,LOC_CREFERENCE,OS_NO);
 | |
|         { label for GUID }
 | |
|         current_asmdata.getdatalabel(tmplabel);
 | |
|         current_asmdata.asmlists[al_typedconsts].concat(tai_align.create(const_align(16)));
 | |
|         current_asmdata.asmlists[al_typedconsts].concat(Tai_label.Create(tmplabel));
 | |
|         current_asmdata.asmlists[al_typedconsts].concat(Tai_const.Create_32bit(longint(value.D1)));
 | |
|         current_asmdata.asmlists[al_typedconsts].concat(Tai_const.Create_16bit(value.D2));
 | |
|         current_asmdata.asmlists[al_typedconsts].concat(Tai_const.Create_16bit(value.D3));
 | |
|         for i:=low(value.D4) to high(value.D4) do
 | |
|           current_asmdata.asmlists[al_typedconsts].concat(Tai_const.Create_8bit(value.D4[i]));
 | |
|         location.reference.symbol:=tmplabel;
 | |
|       end;
 | |
| 
 | |
| 
 | |
| begin
 | |
|    cdataconstnode:=tcgdataconstnode;
 | |
|    crealconstnode:=tcgrealconstnode;
 | |
|    cordconstnode:=tcgordconstnode;
 | |
|    cpointerconstnode:=tcgpointerconstnode;
 | |
|    cstringconstnode:=tcgstringconstnode;
 | |
|    csetconstnode:=tcgsetconstnode;
 | |
|    cnilnode:=tcgnilnode;
 | |
|    cguidconstnode:=tcgguidconstnode;
 | |
| end.
 |