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	 8a2c142e46
			
		
	
	
		8a2c142e46
		
	
	
	
	
		
			
			* fixed bug in n386add (introduced after compilerproc changes for string
    operations) where calcregisters wasn't called for shortstring addnodes
  * NOTE: from now on, the location of a binary node must now always be set
     before you call calcregisters() for it
		
	
			
		
			
				
	
	
		
			897 lines
		
	
	
		
			29 KiB
		
	
	
	
		
			ObjectPascal
		
	
	
	
	
	
			
		
		
	
	
			897 lines
		
	
	
		
			29 KiB
		
	
	
	
		
			ObjectPascal
		
	
	
	
	
	
| {
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|     $Id$
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|     Copyright (c) 2000 by Florian Klaempfl
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| 
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|     Type checking and register allocation for load/assignment nodes
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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 nld;
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| 
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| {$i defines.inc}
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| 
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| interface
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| 
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|     uses
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|        node,
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|        symbase,symtype,symsym;
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| 
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|     type
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|        tloadnode = class(tunarynode)
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|           symtableentry : tsym;
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|           symtable : tsymtable;
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|           constructor create(v : tsym;st : tsymtable);virtual;
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|           procedure set_mp(p:tnode);
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|           function  getcopy : tnode;override;
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|           function  pass_1 : tnode;override;
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|           function  det_resulttype:tnode;override;
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|           function  docompare(p: tnode): boolean; override;
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|        end;
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|        tloadnodeclass = class of tloadnode;
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| 
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|        { different assignment types }
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|        tassigntype = (at_normal,at_plus,at_minus,at_star,at_slash);
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| 
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|        tassignmentnode = class(tbinarynode)
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|           assigntype : tassigntype;
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|           constructor create(l,r : tnode);virtual;
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|           function getcopy : tnode;override;
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|           function pass_1 : tnode;override;
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|           function det_resulttype:tnode;override;
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|           function docompare(p: tnode): boolean; override;
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|        end;
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|        tassignmentnodeclass = class of tassignmentnode;
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| 
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|        tfuncretnode = class(tnode)
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|           funcretsym : tfuncretsym;
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|           constructor create(v:tsym);virtual;
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|           function getcopy : tnode;override;
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|           function pass_1 : tnode;override;
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|           function det_resulttype:tnode;override;
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|           function docompare(p: tnode): boolean; override;
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|        end;
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|        tfuncretnodeclass = class of tfuncretnode;
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| 
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|        tarrayconstructorrangenode = class(tbinarynode)
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|           constructor create(l,r : tnode);virtual;
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|           function pass_1 : tnode;override;
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|           function det_resulttype:tnode;override;
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|        end;
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|        tarrayconstructorrangenodeclass = class of tarrayconstructorrangenode;
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| 
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|        tarrayconstructornode = class(tbinarynode)
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|           constructor create(l,r : tnode);virtual;
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|           function getcopy : tnode;override;
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|           function pass_1 : tnode;override;
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|           function det_resulttype:tnode;override;
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|           function docompare(p: tnode): boolean; override;
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|           procedure force_type(tt:ttype);
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|        end;
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|        tarrayconstructornodeclass = class of tarrayconstructornode;
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| 
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|        ttypenode = class(tnode)
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|           allowed : boolean;
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|           restype : ttype;
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|           constructor create(t : ttype);virtual;
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|           function pass_1 : tnode;override;
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|           function det_resulttype:tnode;override;
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|           function docompare(p: tnode): boolean; override;
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|        end;
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|        ttypenodeclass = class of ttypenode;
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| 
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|     var
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|        cloadnode : tloadnodeclass;
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|        cassignmentnode : tassignmentnodeclass;
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|        cfuncretnode : tfuncretnodeclass;
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|        carrayconstructorrangenode : tarrayconstructorrangenodeclass;
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|        carrayconstructornode : tarrayconstructornodeclass;
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|        ctypenode : ttypenodeclass;
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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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|       cutils,verbose,globtype,globals,systems,
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|       symconst,symdef,symtable,types,
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|       htypechk,pass_1,
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|       ncnv,nmem,cpubase,tgcpu,cgbase
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|       ;
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| 
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| 
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| {*****************************************************************************
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|                              TLOADNODE
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| *****************************************************************************}
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| 
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|     constructor tloadnode.create(v : tsym;st : tsymtable);
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| 
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|       begin
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|          inherited create(loadn,nil);
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|          if not assigned(v) then
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|           internalerror(200108121);
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|          symtableentry:=v;
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|          symtable:=st;
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|       end;
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| 
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| 
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|     procedure tloadnode.set_mp(p:tnode);
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|       begin
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|         left:=p;
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|       end;
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| 
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| 
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|     function tloadnode.getcopy : tnode;
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|       var
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|          n : tloadnode;
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| 
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|       begin
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|          n:=tloadnode(inherited getcopy);
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|          n.symtable:=symtable;
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|          n.symtableentry:=symtableentry;
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|          result:=n;
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|       end;
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| 
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| 
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|     function tloadnode.det_resulttype:tnode;
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|       var
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|         p1 : tnode;
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|         p  : pprocinfo;
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|       begin
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|          result:=nil;
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|          { optimize simple with loadings }
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|          if (symtable.symtabletype=withsymtable) and
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|             (twithsymtable(symtable).direct_with) and
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|             (symtableentry.typ=varsym) then
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|            begin
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|               p1:=tnode(twithsymtable(symtable).withrefnode).getcopy;
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|               p1:=csubscriptnode.create(tvarsym(symtableentry),p1);
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|               left:=nil;
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|               result:=p1;
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|               exit;
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|            end;
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|          { handle first absolute as it will replace the symtableentry }
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|          if symtableentry.typ=absolutesym then
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|            begin
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|              { force the resulttype to the type of the absolute }
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|              resulttype:=tabsolutesym(symtableentry).vartype;
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|              { replace the symtableentry when it points to a var, else
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|                we are finished }
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|              if tabsolutesym(symtableentry).abstyp=tovar then
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|               begin
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|                 symtableentry:=tabsolutesym(symtableentry).ref;
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|                 symtable:=symtableentry.owner;
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|                 include(flags,nf_absolute);
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|               end
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|              else
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|               exit;
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|            end;
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|          case symtableentry.typ of
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|             funcretsym :
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|               begin
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|                 { find the main funcret for the function }
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|                 p:=procinfo;
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|                 while assigned(p) do
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|                  begin
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|                    if assigned(p^.procdef.funcretsym) and
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|                       ((tfuncretsym(symtableentry)=p^.procdef.resultfuncretsym) or
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|                        (tfuncretsym(symtableentry)=p^.procdef.funcretsym)) then
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|                      begin
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|                        symtableentry:=p^.procdef.funcretsym;
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|                        break;
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|                      end;
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|                     p:=p^.parent;
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|                   end;
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|                 { generate funcretnode }
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|                 p1:=cfuncretnode.create(symtableentry);
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|                 resulttypepass(p1);
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|                 { if it's refered as absolute then we need to have the
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|                   type of the absolute instead of the function return,
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|                   the function return is then also assigned }
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|                 if nf_absolute in flags then
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|                  begin
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|                    tfuncretsym(symtableentry).funcretstate:=vs_assigned;
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|                    p1.resulttype:=resulttype;
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|                  end;
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|                 left:=nil;
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|                 result:=p1;
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|               end;
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|             constsym:
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|               begin
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|                  if tconstsym(symtableentry).consttyp=constresourcestring then
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|                    resulttype:=cansistringtype
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|                  else
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|                    internalerror(22799);
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|               end;
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|             varsym :
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|                 begin
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|                   { if it's refered by absolute then it's used }
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|                   if nf_absolute in flags then
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|                    tvarsym(symtableentry).varstate:=vs_used
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|                   else
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|                    resulttype:=tvarsym(symtableentry).vartype;
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|                 end;
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|             typedconstsym :
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|                 if not(nf_absolute in flags) then
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|                   resulttype:=ttypedconstsym(symtableentry).typedconsttype;
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|             procsym :
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|                 begin
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|                    if assigned(tprocsym(symtableentry).definition.nextoverloaded) then
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|                      CGMessage(parser_e_no_overloaded_procvars);
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|                    resulttype.setdef(tprocsym(symtableentry).definition);
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|                    { if the owner of the procsym is a object,  }
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|                    { left must be set, if left isn't set       }
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|                    { it can be only self                       }
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|                    { this code is only used in TP procvar mode }
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|                    if (m_tp_procvar in aktmodeswitches) and
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|                       not(assigned(left)) and
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|                       (tprocsym(symtableentry).owner.symtabletype=objectsymtable) then
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|                     begin
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|                       left:=cselfnode.create(tobjectdef(symtableentry.owner.defowner));
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|                     end;
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| 
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|                    { process methodpointer }
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|                    if assigned(left) then
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|                     begin
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|                       { if only typenode then remove }
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|                       if left.nodetype=typen then
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|                        begin
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|                          left.free;
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|                          left:=nil;
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|                        end
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|                       else
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|                        resulttypepass(left);
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|                     end;
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|                 end;
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|            else
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|              internalerror(200104141);
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|          end;
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|       end;
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| 
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| 
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|     function tloadnode.pass_1 : tnode;
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|       begin
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|          result:=nil;
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|          location.loc:=LOC_REFERENCE;
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|          registers32:=0;
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|          registersfpu:=0;
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| {$ifdef SUPPORT_MMX}
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|          registersmmx:=0;
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| {$endif SUPPORT_MMX}
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|          case symtableentry.typ of
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|             absolutesym :
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|               ;
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|             funcretsym :
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|               internalerror(200104142);
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|             constsym:
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|               begin
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|                  if tconstsym(symtableentry).consttyp=constresourcestring then
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|                    begin
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|                       { we use ansistrings so no fast exit here }
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|                       if assigned(procinfo) then
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|                         procinfo^.no_fast_exit:=true;
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|                       location.loc:=LOC_MEM;
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|                    end;
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|               end;
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|             varsym :
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|                 begin
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|                   if (symtable.symtabletype in [parasymtable,localsymtable]) and
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|                       (lexlevel>symtable.symtablelevel) then
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|                      begin
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|                        { if the variable is in an other stackframe then we need
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|                          a register to dereference }
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|                        if (symtable.symtablelevel)>0 then
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|                         begin
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|                           registers32:=1;
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|                           { further, the variable can't be put into a register }
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|                           tvarsym(symtableentry).varoptions:=
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|                             tvarsym(symtableentry).varoptions-[vo_fpuregable,vo_regable];
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|                         end;
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|                      end;
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|                    if (tvarsym(symtableentry).varspez=vs_const) then
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|                      location.loc:=LOC_MEM;
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|                    { we need a register for call by reference parameters }
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|                    if (tvarsym(symtableentry).varspez in [vs_var,vs_out]) or
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|                       ((tvarsym(symtableentry).varspez=vs_const) and
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|                       push_addr_param(tvarsym(symtableentry).vartype.def)) or
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|                       { call by value open arrays are also indirect addressed }
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|                       is_open_array(tvarsym(symtableentry).vartype.def) then
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|                      registers32:=1;
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|                    if symtable.symtabletype=withsymtable then
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|                      inc(registers32);
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| 
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|                    if ([vo_is_thread_var,vo_is_dll_var]*tvarsym(symtableentry).varoptions)<>[] then
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|                      registers32:=1;
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|                    { count variable references }
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| 
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|                      { this will create problem with local var set by
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|                      under_procedures
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|                      if (assigned(tvarsym(symtableentry).owner) and assigned(aktprocsym)
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|                        and ((tvarsym(symtableentry).owner = aktprocsym.definition.localst)
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|                        or (tvarsym(symtableentry).owner = aktprocsym.definition.localst))) then }
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|                    if t_times<1 then
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|                      inc(tvarsym(symtableentry).refs)
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|                    else
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|                      inc(tvarsym(symtableentry).refs,t_times);
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|                 end;
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|             typedconstsym :
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|                 ;
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|             procsym :
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|                 begin
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|                    { method pointer ? }
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|                    if assigned(left) then
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|                      begin
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|                         firstpass(left);
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|                         registers32:=max(registers32,left.registers32);
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|                         registersfpu:=max(registersfpu,left.registersfpu);
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|  {$ifdef SUPPORT_MMX}
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|                         registersmmx:=max(registersmmx,left.registersmmx);
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|  {$endif SUPPORT_MMX}
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|                      end;
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|                 end;
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|            else
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|              internalerror(200104143);
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|          end;
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|       end;
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| 
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| 
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|     function tloadnode.docompare(p: tnode): boolean;
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|       begin
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|         docompare :=
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|           inherited docompare(p) and
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|           (symtableentry = tloadnode(p).symtableentry) and
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|           (symtable = tloadnode(p).symtable);
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|       end;
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| 
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| 
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| {*****************************************************************************
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|                              TASSIGNMENTNODE
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| *****************************************************************************}
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| 
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|     constructor tassignmentnode.create(l,r : tnode);
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| 
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|       begin
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|          inherited create(assignn,l,r);
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|          assigntype:=at_normal;
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|       end;
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| 
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|     function tassignmentnode.getcopy : tnode;
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| 
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|       var
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|          n : tassignmentnode;
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| 
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|       begin
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|          n:=tassignmentnode(inherited getcopy);
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|          n.assigntype:=assigntype;
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|          getcopy:=n;
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|       end;
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| 
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| 
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|     function tassignmentnode.det_resulttype:tnode;
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|       begin
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|         result:=nil;
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|         resulttype:=voidtype;
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| 
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|         { must be made unique }
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|         if assigned(left) then
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|           begin
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|              set_unique(left);
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| 
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|              { set we the function result? }
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|              set_funcret_is_valid(left);
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|           end;
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| 
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|         resulttypepass(left);
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|         resulttypepass(right);
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|         set_varstate(left,false);
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|         set_varstate(right,true);
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|         if codegenerror then
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|           exit;
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| 
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|         { assignments to open arrays aren't allowed }
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|         if is_open_array(left.resulttype.def) then
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|           CGMessage(type_e_mismatch);
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| 
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|         { some string functions don't need conversion, so treat them separatly }
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|         if not (
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|                 is_shortstring(left.resulttype.def) and
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|                 (
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|                  is_shortstring(right.resulttype.def) or
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|                  is_ansistring(right.resulttype.def) or
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|                  is_char(right.resulttype.def)
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|                 )
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|                ) then
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|          inserttypeconv(right,left.resulttype);
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| 
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|         { test if node can be assigned, properties are allowed }
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|         valid_for_assignment(left);
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| 
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|         { check if local proc/func is assigned to procvar }
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|         if right.resulttype.def.deftype=procvardef then
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|           test_local_to_procvar(tprocvardef(right.resulttype.def),left.resulttype.def);
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|       end;
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| 
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| 
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|     function tassignmentnode.pass_1 : tnode;
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|       begin
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|          result:=nil;
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| 
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|          firstpass(left);
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|          firstpass(right);
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|          if codegenerror then
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|            exit;
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| 
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|          { some string functions don't need conversion, so treat them separatly }
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|          if is_shortstring(left.resulttype.def) and
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|             (
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|              is_shortstring(right.resulttype.def) or
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|              is_ansistring(right.resulttype.def) or
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|              is_char(right.resulttype.def)
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|             ) then
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|           begin
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|             { we call STRCOPY }
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|             procinfo^.flags:=procinfo^.flags or pi_do_call;
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|             { test for s:=s+anything ... }
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|             { the problem is for
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|               s:=s+s+s;
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|               this is broken here !! }
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| {$ifdef newoptimizations2}
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|             { the above is fixed now, but still problem with s := s + f(); if }
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|             { f modifies s (bad programming, so only enable if uncertain      }
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|             { optimizations are on) (JM)                                      }
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|             if (cs_UncertainOpts in aktglobalswitches) then
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|               begin
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|                 hp := right;
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|                 while hp.treetype=addn do hp:=hp.left;
 | |
|                 if equal_trees(left,hp) and
 | |
|                    not multiple_uses(left,right) then
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|                   begin
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|                     concat_string:=true;
 | |
|                     hp:=right;
 | |
|                     while hp.treetype=addn do
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|                       begin
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|                         hp.use_strconcat:=true;
 | |
|                         hp:=hp.left;
 | |
|                       end;
 | |
|                   end;
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|               end;
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| {$endif newoptimizations2}
 | |
|           end;
 | |
| 
 | |
|          registers32:=left.registers32+right.registers32;
 | |
|          registersfpu:=max(left.registersfpu,right.registersfpu);
 | |
| {$ifdef SUPPORT_MMX}
 | |
|          registersmmx:=max(left.registersmmx,right.registersmmx);
 | |
| {$endif SUPPORT_MMX}
 | |
|       end;
 | |
| 
 | |
|     function tassignmentnode.docompare(p: tnode): boolean;
 | |
|       begin
 | |
|         docompare :=
 | |
|           inherited docompare(p) and
 | |
|           (assigntype = tassignmentnode(p).assigntype);
 | |
|       end;
 | |
| 
 | |
| 
 | |
| {*****************************************************************************
 | |
|                                  TFUNCRETNODE
 | |
| *****************************************************************************}
 | |
| 
 | |
|     constructor tfuncretnode.create(v:tsym);
 | |
| 
 | |
|       begin
 | |
|          inherited create(funcretn);
 | |
|          funcretsym:=tfuncretsym(v);
 | |
|       end;
 | |
| 
 | |
| 
 | |
|     function tfuncretnode.getcopy : tnode;
 | |
|       var
 | |
|          n : tfuncretnode;
 | |
|       begin
 | |
|          n:=tfuncretnode(inherited getcopy);
 | |
|          n.funcretsym:=funcretsym;
 | |
|          getcopy:=n;
 | |
|       end;
 | |
| 
 | |
| 
 | |
|     function tfuncretnode.det_resulttype:tnode;
 | |
|       begin
 | |
|         result:=nil;
 | |
|         resulttype:=funcretsym.returntype;
 | |
|       end;
 | |
| 
 | |
| 
 | |
|     function tfuncretnode.pass_1 : tnode;
 | |
|       begin
 | |
|          result:=nil;
 | |
|          location.loc:=LOC_REFERENCE;
 | |
|          if ret_in_param(resulttype.def) or
 | |
|             (lexlevel<>funcretsym.owner.symtablelevel) then
 | |
|            registers32:=1;
 | |
|       end;
 | |
| 
 | |
| 
 | |
|     function tfuncretnode.docompare(p: tnode): boolean;
 | |
|       begin
 | |
|         docompare :=
 | |
|           inherited docompare(p) and
 | |
|           (funcretsym = tfuncretnode(p).funcretsym);
 | |
|       end;
 | |
| 
 | |
| 
 | |
| {*****************************************************************************
 | |
|                            TARRAYCONSTRUCTORRANGENODE
 | |
| *****************************************************************************}
 | |
| 
 | |
|     constructor tarrayconstructorrangenode.create(l,r : tnode);
 | |
| 
 | |
|       begin
 | |
|          inherited create(arrayconstructorrangen,l,r);
 | |
|       end;
 | |
| 
 | |
|     function tarrayconstructorrangenode.det_resulttype:tnode;
 | |
|       begin
 | |
|         result:=nil;
 | |
|         resulttypepass(left);
 | |
|         resulttypepass(right);
 | |
|         set_varstate(left,true);
 | |
|         set_varstate(right,true);
 | |
|         if codegenerror then
 | |
|          exit;
 | |
|         resulttype:=left.resulttype;
 | |
|       end;
 | |
| 
 | |
| 
 | |
|     function tarrayconstructorrangenode.pass_1 : tnode;
 | |
|       begin
 | |
|         firstpass(left);
 | |
|         firstpass(right);
 | |
|         location.loc := LOC_MEM;
 | |
|         calcregisters(self,0,0,0);
 | |
|         result:=nil;
 | |
|       end;
 | |
| 
 | |
| 
 | |
| {****************************************************************************
 | |
|                             TARRAYCONSTRUCTORNODE
 | |
| *****************************************************************************}
 | |
| 
 | |
|     constructor tarrayconstructornode.create(l,r : tnode);
 | |
|       begin
 | |
|          inherited create(arrayconstructorn,l,r);
 | |
|       end;
 | |
| 
 | |
| 
 | |
|     function tarrayconstructornode.getcopy : tnode;
 | |
|       var
 | |
|          n : tarrayconstructornode;
 | |
|       begin
 | |
|          n:=tarrayconstructornode(inherited getcopy);
 | |
|          result:=n;
 | |
|       end;
 | |
| 
 | |
| 
 | |
|     function tarrayconstructornode.det_resulttype:tnode;
 | |
|       var
 | |
|         htype : ttype;
 | |
|         hp    : tarrayconstructornode;
 | |
|         len   : longint;
 | |
|         varia : boolean;
 | |
|       begin
 | |
|         result:=nil;
 | |
| 
 | |
|       { are we allowing array constructor? Then convert it to a set }
 | |
|         if not allow_array_constructor then
 | |
|          begin
 | |
|            hp:=tarrayconstructornode(getcopy);
 | |
|            arrayconstructor_to_set(hp);
 | |
|            result:=hp;
 | |
|            exit;
 | |
|          end;
 | |
| 
 | |
|       { only pass left tree, right tree contains next construct if any }
 | |
|         htype.reset;
 | |
|         len:=0;
 | |
|         varia:=false;
 | |
|         if assigned(left) then
 | |
|          begin
 | |
|            hp:=self;
 | |
|            while assigned(hp) do
 | |
|             begin
 | |
|               resulttypepass(hp.left);
 | |
|               set_varstate(hp.left,true);
 | |
|               if (htype.def=nil) then
 | |
|                htype:=hp.left.resulttype
 | |
|               else
 | |
|                begin
 | |
|                  if ((nf_novariaallowed in flags) or (not varia)) and
 | |
|                     (not is_equal(htype.def,hp.left.resulttype.def)) then
 | |
|                   begin
 | |
|                     varia:=true;
 | |
|                   end;
 | |
|                end;
 | |
|               inc(len);
 | |
|               hp:=tarrayconstructornode(hp.right);
 | |
|             end;
 | |
|          end;
 | |
|          if not assigned(htype.def) then
 | |
|           htype:=voidtype;
 | |
|          resulttype.setdef(tarraydef.create(0,len-1,s32bittype));
 | |
|          tarraydef(resulttype.def).elementtype:=htype;
 | |
|          tarraydef(resulttype.def).IsConstructor:=true;
 | |
|          tarraydef(resulttype.def).IsVariant:=varia;
 | |
|       end;
 | |
| 
 | |
| 
 | |
|     procedure tarrayconstructornode.force_type(tt:ttype);
 | |
|       var
 | |
|         hp : tarrayconstructornode;
 | |
|       begin
 | |
|         tarraydef(resulttype.def).elementtype:=tt;
 | |
|         tarraydef(resulttype.def).IsConstructor:=true;
 | |
|         tarraydef(resulttype.def).IsVariant:=false;
 | |
|         if assigned(left) then
 | |
|          begin
 | |
|            hp:=self;
 | |
|            while assigned(hp) do
 | |
|             begin
 | |
|               inserttypeconv(hp.left,tt);
 | |
|               hp:=tarrayconstructornode(hp.right);
 | |
|             end;
 | |
|          end;
 | |
|       end;
 | |
| 
 | |
| 
 | |
|     function tarrayconstructornode.pass_1 : tnode;
 | |
|       var
 | |
|         thp,
 | |
|         chp,
 | |
|         hp        : tarrayconstructornode;
 | |
|         dovariant : boolean;
 | |
|         htype     : ttype;
 | |
|       begin
 | |
|         dovariant:=(nf_forcevaria in flags) or tarraydef(resulttype.def).isvariant;
 | |
|         result:=nil;
 | |
|       { only pass left tree, right tree contains next construct if any }
 | |
|         if assigned(left) then
 | |
|          begin
 | |
|            hp:=self;
 | |
|            while assigned(hp) do
 | |
|             begin
 | |
|               firstpass(hp.left);
 | |
|               { Insert typeconvs for array of const }
 | |
|               if dovariant then
 | |
|                begin
 | |
|                  case hp.left.resulttype.def.deftype of
 | |
|                    enumdef :
 | |
|                      begin
 | |
|                        hp.left:=ctypeconvnode.create(hp.left,s32bittype);
 | |
|                        firstpass(hp.left);
 | |
|                      end;
 | |
|                    orddef :
 | |
|                      begin
 | |
|                        if is_integer(hp.left.resulttype.def) and
 | |
|                          not(is_64bitint(hp.left.resulttype.def)) then
 | |
|                         begin
 | |
|                           hp.left:=ctypeconvnode.create(hp.left,s32bittype);
 | |
|                           firstpass(hp.left);
 | |
|                         end;
 | |
|                      end;
 | |
|                    floatdef :
 | |
|                      begin
 | |
|                        hp.left:=ctypeconvnode.create(hp.left,pbestrealtype^);
 | |
|                        firstpass(hp.left);
 | |
|                      end;
 | |
|                    stringdef :
 | |
|                      begin
 | |
|                        if nf_cargs in flags then
 | |
|                         begin
 | |
|                           hp.left:=ctypeconvnode.create(hp.left,charpointertype);
 | |
|                           firstpass(hp.left);
 | |
|                         end;
 | |
|                      end;
 | |
|                    procvardef :
 | |
|                      begin
 | |
|                        hp.left:=ctypeconvnode.create(hp.left,voidpointertype);
 | |
|                        firstpass(hp.left);
 | |
|                      end;
 | |
|                    pointerdef,
 | |
|                    classrefdef,
 | |
|                    objectdef : ;
 | |
|                    else
 | |
|                      CGMessagePos1(hp.left.fileinfo,type_e_wrong_type_in_array_constructor,hp.left.resulttype.def.typename);
 | |
|                  end;
 | |
|                end;
 | |
|               hp:=tarrayconstructornode(hp.right);
 | |
|             end;
 | |
|          { swap the tree for cargs }
 | |
|            if (nf_cargs in flags) and (not(nf_cargswap in flags)) then
 | |
|             begin
 | |
|               chp:=nil;
 | |
|               { save resulttype }
 | |
|               htype:=resulttype;
 | |
|               { we need a copy here, because self is destroyed }
 | |
|               { by firstpass later                             }
 | |
|               hp:=tarrayconstructornode(getcopy);
 | |
|               while assigned(hp) do
 | |
|                begin
 | |
|                  thp:=tarrayconstructornode(hp.right);
 | |
|                  hp.right:=chp;
 | |
|                  chp:=hp;
 | |
|                  hp:=thp;
 | |
|                end;
 | |
|               include(chp.flags,nf_cargs);
 | |
|               include(chp.flags,nf_cargswap);
 | |
|               chp.location.loc:=LOC_MEM;
 | |
|               calcregisters(chp,0,0,0);
 | |
|               chp.resulttype:=htype;
 | |
|               result:=chp;
 | |
|               exit;
 | |
|             end;
 | |
|          end;
 | |
|         location.loc:=LOC_MEM;
 | |
|         calcregisters(self,0,0,0);
 | |
|       end;
 | |
| 
 | |
| 
 | |
|     function tarrayconstructornode.docompare(p: tnode): boolean;
 | |
|       begin
 | |
|         docompare :=
 | |
|           inherited docompare(p);
 | |
|       end;
 | |
| 
 | |
| 
 | |
| {*****************************************************************************
 | |
|                               TTYPENODE
 | |
| *****************************************************************************}
 | |
| 
 | |
|     constructor ttypenode.create(t : ttype);
 | |
|       begin
 | |
|          inherited create(typen);
 | |
|          restype:=t;
 | |
|          allowed:=false;
 | |
|       end;
 | |
| 
 | |
| 
 | |
|     function ttypenode.det_resulttype:tnode;
 | |
|       begin
 | |
|         result:=nil;
 | |
|         resulttype:=restype;
 | |
|       end;
 | |
| 
 | |
| 
 | |
|     function ttypenode.pass_1 : tnode;
 | |
|       begin
 | |
|          result:=nil;
 | |
|          { a typenode can't generate code, so we give here
 | |
|            an error. Else it'll be an abstract error in pass_2.
 | |
|            Only when the allowed flag is set we don't generate
 | |
|            an error }
 | |
|          if not allowed then
 | |
|           Message(parser_e_no_type_not_allowed_here);
 | |
|       end;
 | |
| 
 | |
| 
 | |
|     function ttypenode.docompare(p: tnode): boolean;
 | |
|       begin
 | |
|         docompare :=
 | |
|           inherited docompare(p);
 | |
|       end;
 | |
| 
 | |
| begin
 | |
|    cloadnode:=tloadnode;
 | |
|    cassignmentnode:=tassignmentnode;
 | |
|    cfuncretnode:=tfuncretnode;
 | |
|    carrayconstructorrangenode:=tarrayconstructorrangenode;
 | |
|    carrayconstructornode:=tarrayconstructornode;
 | |
|    ctypenode:=ttypenode;
 | |
| end.
 | |
| {
 | |
|   $Log$
 | |
|   Revision 1.26  2001-10-12 13:51:51  jonas
 | |
|     * fixed internalerror(10) due to previous fpu overflow fixes ("merged")
 | |
|     * fixed bug in n386add (introduced after compilerproc changes for string
 | |
|       operations) where calcregisters wasn't called for shortstring addnodes
 | |
|     * NOTE: from now on, the location of a binary node must now always be set
 | |
|        before you call calcregisters() for it
 | |
| 
 | |
|   Revision 1.25  2001/09/02 21:12:07  peter
 | |
|     * move class of definitions into type section for delphi
 | |
| 
 | |
|   Revision 1.24  2001/08/30 15:48:34  jonas
 | |
|     * fix from Peter for getting correct symtableentry for funcret loads
 | |
| 
 | |
|   Revision 1.23  2001/08/26 13:36:41  florian
 | |
|     * some cg reorganisation
 | |
|     * some PPC updates
 | |
| 
 | |
|   Revision 1.22  2001/08/12 22:11:52  peter
 | |
|     * errordef.typesym is not updated anymore
 | |
| 
 | |
|   Revision 1.21  2001/08/06 21:40:47  peter
 | |
|     * funcret moved from tprocinfo to tprocdef
 | |
| 
 | |
|   Revision 1.20  2001/07/30 20:52:25  peter
 | |
|     * fixed array constructor passing with type conversions
 | |
| 
 | |
|   Revision 1.19  2001/06/04 18:07:47  peter
 | |
|     * remove unused typenode for procvar load. Don't know what happened why
 | |
|       this code was not there already with revision 1.17.
 | |
| 
 | |
|   Revision 1.18  2001/06/04 11:48:01  peter
 | |
|     * better const to var checking
 | |
| 
 | |
|   Revision 1.17  2001/05/19 21:19:57  peter
 | |
|     * remove unused typenode for procvars to prevent error
 | |
|     * typenode.allowed flag to allow a typenode
 | |
| 
 | |
|   Revision 1.16  2001/05/09 19:57:51  peter
 | |
|     * typenode doesn't generate code, give error in pass_1 instead of
 | |
|       getting an abstract methode runtime error
 | |
| 
 | |
|   Revision 1.15  2001/04/14 14:06:31  peter
 | |
|     * move more code from loadnode.pass_1 to det_resulttype
 | |
| 
 | |
|   Revision 1.14  2001/04/13 01:22:10  peter
 | |
|     * symtable change to classes
 | |
|     * range check generation and errors fixed, make cycle DEBUG=1 works
 | |
|     * memory leaks fixed
 | |
| 
 | |
|   Revision 1.13  2001/04/05 21:03:08  peter
 | |
|     * array constructor fix
 | |
| 
 | |
|   Revision 1.12  2001/04/04 22:42:40  peter
 | |
|     * move constant folding into det_resulttype
 | |
| 
 | |
|   Revision 1.11  2001/04/02 21:20:31  peter
 | |
|     * resulttype rewrite
 | |
| 
 | |
|   Revision 1.10  2000/12/31 11:14:10  jonas
 | |
|     + implemented/fixed docompare() mathods for all nodes (not tested)
 | |
|     + nopt.pas, nadd.pas, i386/n386opt.pas: optimized nodes for adding strings
 | |
|       and constant strings/chars together
 | |
|     * n386add.pas: don't copy temp strings (of size 256) to another temp string
 | |
|       when adding
 | |
| 
 | |
|   Revision 1.9  2000/11/29 00:30:33  florian
 | |
|     * unused units removed from uses clause
 | |
|     * some changes for widestrings
 | |
| 
 | |
|   Revision 1.8  2000/11/04 14:25:20  florian
 | |
|     + merged Attila's changes for interfaces, not tested yet
 | |
| 
 | |
|   Revision 1.7  2000/10/31 22:02:49  peter
 | |
|     * symtable splitted, no real code changes
 | |
| 
 | |
|   Revision 1.6  2000/10/14 10:14:50  peter
 | |
|     * moehrendorf oct 2000 rewrite
 | |
| 
 | |
|   Revision 1.5  2000/10/01 19:48:24  peter
 | |
|     * lot of compile updates for cg11
 | |
| 
 | |
|   Revision 1.4  2000/09/28 19:49:52  florian
 | |
|   *** empty log message ***
 | |
| 
 | |
|   Revision 1.3  2000/09/27 18:14:31  florian
 | |
|     * fixed a lot of syntax errors in the n*.pas stuff
 | |
| 
 | |
|   Revision 1.2  2000/09/25 15:37:14  florian
 | |
|     * more fixes
 | |
| 
 | |
|   Revision 1.1  2000/09/25 14:55:05  florian
 | |
|     * initial revision
 | |
| }
 |