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https://gitlab.com/freepascal.org/fpc/source.git
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1276 lines
52 KiB
ObjectPascal
1276 lines
52 KiB
ObjectPascal
{
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$Id$
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Copyright (c) 1993-98 by Florian Klaempfl
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Generate i386 assembler for load/assignment nodes
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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****************************************************************************
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}
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unit cg386ld;
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interface
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uses
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tree;
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procedure secondload(var p : ptree);
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procedure secondassignment(var p : ptree);
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procedure secondfuncret(var p : ptree);
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procedure secondarrayconstruct(var p : ptree);
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implementation
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uses
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globtype,systems,
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cobjects,verbose,globals,files,
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symconst,symtable,aasm,types,
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hcodegen,temp_gen,pass_2,
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cpubase,cpuasm,
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cgai386,tgeni386,cg386cnv,cresstr;
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{*****************************************************************************
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SecondLoad
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*****************************************************************************}
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procedure secondload(var p : ptree);
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var
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hregister : tregister;
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symtabletype : tsymtabletype;
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i : longint;
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hp : preference;
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s : pasmsymbol;
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popeax : boolean;
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pushed : tpushed;
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hr : treference;
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begin
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simple_loadn:=true;
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reset_reference(p^.location.reference);
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case p^.symtableentry^.typ of
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{ this is only for toasm and toaddr }
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absolutesym :
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begin
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p^.location.reference.symbol:=nil;
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if (pabsolutesym(p^.symtableentry)^.abstyp=toaddr) then
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begin
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if pabsolutesym(p^.symtableentry)^.absseg then
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p^.location.reference.segment:=R_FS;
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p^.location.reference.offset:=pabsolutesym(p^.symtableentry)^.address;
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end
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else
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p^.location.reference.symbol:=newasmsymbol(p^.symtableentry^.mangledname);
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end;
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constsym:
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begin
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if pconstsym(p^.symtableentry)^.consttype=constresourcestring then
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begin
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pushusedregisters(pushed,$ff);
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emit_const(A_PUSH,S_L,
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pconstsym(p^.symtableentry)^.resstrindex);
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emit_sym(A_PUSH,S_L,newasmsymbol(current_module^.modulename^+'_RESOURCESTRINGLIST'));
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emitcall('FPC_GETRESOURCESTRING');
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hregister:=getexplicitregister32(R_EAX);
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emit_reg_reg(A_MOV,S_L,R_EAX,hregister);
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if gettempansistringreference(hr) then
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decrstringref(p^.resulttype,hr);
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emit_reg_ref(A_MOV,S_L,hregister,
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newreference(hr));
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ungetregister32(hregister);
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popusedregisters(pushed);
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p^.location.loc:=LOC_MEM;
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p^.location.reference:=hr;
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end
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else
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internalerror(22798);
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end;
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varsym :
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begin
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hregister:=R_NO;
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{ C variable }
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if (vo_is_C_var in pvarsym(p^.symtableentry)^.varoptions) then
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begin
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p^.location.reference.symbol:=newasmsymbol(p^.symtableentry^.mangledname);
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end
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{ DLL variable }
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else if (vo_is_dll_var in pvarsym(p^.symtableentry)^.varoptions) then
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begin
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hregister:=getregister32;
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p^.location.reference.symbol:=newasmsymbol(p^.symtableentry^.mangledname);
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emit_ref_reg(A_MOV,S_L,newreference(p^.location.reference),hregister);
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p^.location.reference.symbol:=nil;
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p^.location.reference.base:=hregister;
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end
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{ external variable }
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else if (vo_is_external in pvarsym(p^.symtableentry)^.varoptions) then
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begin
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p^.location.reference.symbol:=newasmsymbol(p^.symtableentry^.mangledname);
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end
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{ thread variable }
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else if (vo_is_thread_var in pvarsym(p^.symtableentry)^.varoptions) then
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begin
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popeax:=not(R_EAX in unused);
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if popeax then
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emit_reg(A_PUSH,S_L,R_EAX);
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p^.location.reference.symbol:=newasmsymbol(p^.symtableentry^.mangledname);
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emit_ref(A_PUSH,S_L,newreference(p^.location.reference));
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{ the called procedure isn't allowed to change }
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{ any register except EAX }
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emitcall('FPC_RELOCATE_THREADVAR');
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reset_reference(p^.location.reference);
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p^.location.reference.base:=getregister32;
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emit_reg_reg(A_MOV,S_L,R_EAX,p^.location.reference.base);
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if popeax then
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emit_reg(A_POP,S_L,R_EAX);
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end
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{ normal variable }
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else
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begin
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symtabletype:=p^.symtable^.symtabletype;
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{ in case it is a register variable: }
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if pvarsym(p^.symtableentry)^.reg<>R_NO then
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begin
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if pvarsym(p^.symtableentry)^.reg in [R_ST0..R_ST7] then
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begin
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p^.location.loc:=LOC_CFPUREGISTER;
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p^.location.register:=pvarsym(p^.symtableentry)^.reg;
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end
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else
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begin
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p^.location.loc:=LOC_CREGISTER;
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p^.location.register:=pvarsym(p^.symtableentry)^.reg;
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unused:=unused-[pvarsym(p^.symtableentry)^.reg];
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end;
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end
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else
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begin
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{ first handle local and temporary variables }
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if (symtabletype in [parasymtable,inlinelocalsymtable,
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inlineparasymtable,localsymtable]) then
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begin
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p^.location.reference.base:=procinfo.framepointer;
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p^.location.reference.offset:=pvarsym(p^.symtableentry)^.address+p^.symtable^.address_fixup;
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if (symtabletype in [localsymtable,inlinelocalsymtable]) then
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begin
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if use_esp_stackframe then
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dec(p^.location.reference.offset,
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pvarsym(p^.symtableentry)^.getsize)
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else
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p^.location.reference.offset:=-p^.location.reference.offset;
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end;
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if (lexlevel>(p^.symtable^.symtablelevel)) then
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begin
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hregister:=getregister32;
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{ make a reference }
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hp:=new_reference(procinfo.framepointer,
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procinfo.framepointer_offset);
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emit_ref_reg(A_MOV,S_L,hp,hregister);
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simple_loadn:=false;
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i:=lexlevel-1;
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while i>(p^.symtable^.symtablelevel) do
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begin
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{ make a reference }
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hp:=new_reference(hregister,8);
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emit_ref_reg(A_MOV,S_L,hp,hregister);
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dec(i);
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end;
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p^.location.reference.base:=hregister;
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end;
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end
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else
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case symtabletype of
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unitsymtable,globalsymtable,
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staticsymtable :
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begin
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p^.location.reference.symbol:=newasmsymbol(p^.symtableentry^.mangledname);
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end;
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stt_exceptsymtable:
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begin
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p^.location.reference.base:=procinfo.framepointer;
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p^.location.reference.offset:=pvarsym(p^.symtableentry)^.address;
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end;
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objectsymtable:
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begin
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if (sp_static in pvarsym(p^.symtableentry)^.symoptions) then
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begin
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p^.location.reference.symbol:=newasmsymbol(p^.symtableentry^.mangledname);
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end
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else
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begin
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p^.location.reference.base:=R_ESI;
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p^.location.reference.offset:=pvarsym(p^.symtableentry)^.address;
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end;
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end;
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withsymtable:
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begin
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{ make a reference }
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{ symtable datasize field
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contains the offset of the temp
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stored }
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{ hp:=new_reference(procinfo.framepointer,
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p^.symtable^.datasize);
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emit_ref_reg(A_MOV,S_L,hp,hregister);}
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if ptree(pwithsymtable(p^.symtable)^.withnode)^.islocal then
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begin
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p^.location.reference:=ptree(pwithsymtable(p^.symtable)^.withnode)^.withreference^;
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end
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else
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begin
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hregister:=getregister32;
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p^.location.reference.base:=hregister;
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emit_ref_reg(A_MOV,S_L,
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newreference(ptree(pwithsymtable(p^.symtable)^.withnode)^.withreference^),
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hregister);
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end;
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inc(p^.location.reference.offset,pvarsym(p^.symtableentry)^.address);
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end;
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end;
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end;
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{ in case call by reference, then calculate. Open array
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is always an reference! }
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if (pvarsym(p^.symtableentry)^.varspez=vs_var) or
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is_open_array(pvarsym(p^.symtableentry)^.definition) or
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is_array_of_const(pvarsym(p^.symtableentry)^.definition) or
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((pvarsym(p^.symtableentry)^.varspez=vs_const) and
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push_addr_param(pvarsym(p^.symtableentry)^.definition)) then
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begin
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simple_loadn:=false;
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if hregister=R_NO then
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hregister:=getregister32;
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if p^.location.loc=LOC_CREGISTER then
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begin
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emit_reg_reg(A_MOV,S_L,
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p^.location.register,hregister);
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p^.location.loc:=LOC_REFERENCE;
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end
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else
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begin
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emit_ref_reg(A_MOV,S_L,
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newreference(p^.location.reference),
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hregister);
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end;
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reset_reference(p^.location.reference);
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p^.location.reference.base:=hregister;
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end;
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end;
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end;
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procsym:
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begin
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if assigned(p^.left) then
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begin
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secondpass(p^.left);
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p^.location.loc:=LOC_MEM;
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gettempofsizereference(8,p^.location.reference);
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{ load class instance address }
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case p^.left^.location.loc of
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LOC_CREGISTER,
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LOC_REGISTER:
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begin
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hregister:=p^.left^.location.register;
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ungetregister32(p^.left^.location.register);
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{ such code is allowed !
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CGMessage(cg_e_illegal_expression); }
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end;
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LOC_MEM,
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LOC_REFERENCE:
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begin
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hregister:=R_EDI;
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emit_ref_reg(A_MOV,S_L,
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newreference(p^.left^.location.reference),R_EDI);
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del_reference(p^.left^.location.reference);
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ungetiftemp(p^.left^.location.reference);
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end;
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else internalerror(26019);
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end;
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{ store the class instance address }
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new(hp);
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hp^:=p^.location.reference;
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inc(hp^.offset,4);
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emit_reg_ref(A_MOV,S_L,
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hregister,hp);
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{ virtual method ? }
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if (po_virtualmethod in pprocsym(p^.symtableentry)^.definition^.procoptions) then
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begin
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new(hp);
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reset_reference(hp^);
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hp^.base:=hregister;
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{ load vmt pointer }
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emit_ref_reg(A_MOV,S_L,
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hp,R_EDI);
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{$IfDef regallocfix}
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del_reference(hp^);
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{$EndIf regallocfix}
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{ load method address }
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new(hp);
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reset_reference(hp^);
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hp^.base:=R_EDI;
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hp^.offset:=pprocsym(p^.symtableentry)^.definition^._class^.vmtmethodoffset(
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pprocsym(p^.symtableentry)^.definition^.extnumber);
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emit_ref_reg(A_MOV,S_L,
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hp,R_EDI);
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{ ... and store it }
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emit_reg_ref(A_MOV,S_L,
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R_EDI,newreference(p^.location.reference));
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end
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else
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begin
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s:=newasmsymbol(pprocsym(p^.symtableentry)^.definition^.mangledname);
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emit_sym_ofs_ref(A_MOV,S_L,s,0,
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newreference(p^.location.reference));
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end;
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end
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else
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begin
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{!!!!! Be aware, work on virtual methods too }
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p^.location.reference.symbol:=newasmsymbol(pprocsym(p^.symtableentry)^.definition^.mangledname);
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end;
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end;
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typedconstsym :
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begin
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p^.location.reference.symbol:=newasmsymbol(p^.symtableentry^.mangledname);
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end;
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else internalerror(4);
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end;
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end;
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{*****************************************************************************
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SecondAssignment
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*****************************************************************************}
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procedure secondassignment(var p : ptree);
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var
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opsize : topsize;
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otlabel,hlabel,oflabel : pasmlabel;
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hregister : tregister;
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fputyp : tfloattype;
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loc : tloc;
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r : preference;
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ai : paicpu;
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op : tasmop;
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begin
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otlabel:=truelabel;
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oflabel:=falselabel;
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getlabel(truelabel);
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getlabel(falselabel);
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{ calculate left sides }
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if not(p^.concat_string) then
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secondpass(p^.left);
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if codegenerror then
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exit;
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case p^.left^.location.loc of
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LOC_REFERENCE : begin
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{ in case left operator uses to register }
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{ but to few are free then LEA }
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if (p^.left^.location.reference.base<>R_NO) and
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(p^.left^.location.reference.index<>R_NO) and
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(usablereg32<p^.right^.registers32) then
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begin
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del_reference(p^.left^.location.reference);
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hregister:=getregister32;
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emit_ref_reg(A_LEA,S_L,newreference(
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p^.left^.location.reference),
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hregister);
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reset_reference(p^.left^.location.reference);
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p^.left^.location.reference.base:=hregister;
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p^.left^.location.reference.index:=R_NO;
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end;
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loc:=LOC_REFERENCE;
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end;
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LOC_CFPUREGISTER:
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loc:=LOC_CFPUREGISTER;
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LOC_CREGISTER:
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loc:=LOC_CREGISTER;
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LOC_MMXREGISTER:
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loc:=LOC_MMXREGISTER;
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LOC_CMMXREGISTER:
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loc:=LOC_CMMXREGISTER;
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else
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begin
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CGMessage(cg_e_illegal_expression);
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exit;
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end;
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end;
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{ lets try to optimize this (PM) }
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{ define a dest_loc that is the location }
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{ and a ptree to verify that it is the right }
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{ place to insert it }
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{$ifdef test_dest_loc}
|
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if (aktexprlevel<4) then
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begin
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dest_loc_known:=true;
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dest_loc:=p^.left^.location;
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dest_loc_tree:=p^.right;
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end;
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{$endif test_dest_loc}
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secondpass(p^.right);
|
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if codegenerror then
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exit;
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{$ifdef test_dest_loc}
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dest_loc_known:=false;
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if in_dest_loc then
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begin
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truelabel:=otlabel;
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falselabel:=oflabel;
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in_dest_loc:=false;
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exit;
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end;
|
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{$endif test_dest_loc}
|
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if p^.left^.resulttype^.deftype=stringdef then
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begin
|
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if is_ansistring(p^.left^.resulttype) then
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begin
|
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{ the source and destinations are released
|
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in loadansistring, because an ansi string can
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also be in a register
|
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}
|
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loadansistring(p);
|
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end
|
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else
|
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if is_shortstring(p^.left^.resulttype) and
|
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not (p^.concat_string) then
|
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begin
|
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if is_ansistring(p^.right^.resulttype) then
|
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begin
|
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if (p^.right^.treetype=stringconstn) and
|
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(p^.right^.length=0) then
|
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begin
|
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emit_const_ref(A_MOV,S_B,
|
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0,newreference(p^.left^.location.reference));
|
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{$IfDef regallocfix}
|
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del_reference(p^.left^.location.reference);
|
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{$EndIf regallocfix}
|
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end
|
|
else
|
|
loadansi2short(p^.right,p^.left);
|
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end
|
|
else
|
|
begin
|
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{ we do not need destination anymore }
|
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del_reference(p^.left^.location.reference);
|
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del_reference(p^.right^.location.reference);
|
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loadshortstring(p);
|
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ungetiftemp(p^.right^.location.reference);
|
|
end;
|
|
end
|
|
else if is_longstring(p^.left^.resulttype) then
|
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begin
|
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end
|
|
else
|
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begin
|
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{ its the only thing we have to do }
|
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del_reference(p^.right^.location.reference);
|
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end
|
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end
|
|
else case p^.right^.location.loc of
|
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LOC_REFERENCE,
|
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LOC_MEM : begin
|
|
{ extra handling for ordinal constants }
|
|
if (p^.right^.treetype in [ordconstn,fixconstn]) or
|
|
(loc=LOC_CREGISTER) then
|
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begin
|
|
case p^.left^.resulttype^.size of
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1 : opsize:=S_B;
|
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2 : opsize:=S_W;
|
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4 : opsize:=S_L;
|
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{ S_L is correct, the copy is done }
|
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{ with two moves }
|
|
8 : opsize:=S_L;
|
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end;
|
|
if loc=LOC_CREGISTER then
|
|
begin
|
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emit_ref_reg(A_MOV,opsize,
|
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newreference(p^.right^.location.reference),
|
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p^.left^.location.register);
|
|
if is_64bitint(p^.right^.resulttype) then
|
|
begin
|
|
r:=newreference(p^.right^.location.reference);
|
|
inc(r^.offset,4);
|
|
emit_ref_reg(A_MOV,opsize,r,
|
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p^.left^.location.registerhigh);
|
|
end;
|
|
{$IfDef regallocfix}
|
|
del_reference(p^.right^.location.reference);
|
|
{$EndIf regallocfix}
|
|
end
|
|
else
|
|
begin
|
|
emit_const_ref(A_MOV,opsize,
|
|
p^.right^.location.reference.offset,
|
|
newreference(p^.left^.location.reference));
|
|
if is_64bitint(p^.right^.resulttype) then
|
|
begin
|
|
r:=newreference(p^.left^.location.reference);
|
|
inc(r^.offset,4);
|
|
emit_const_ref(A_MOV,opsize,
|
|
0,r);
|
|
end;
|
|
{$IfDef regallocfix}
|
|
del_reference(p^.left^.location.reference);
|
|
{$EndIf regallocfix}
|
|
{emit_const_loc(A_MOV,opsize,
|
|
p^.right^.location.reference.offset,
|
|
p^.left^.location);}
|
|
end;
|
|
|
|
end
|
|
else if loc=LOC_CFPUREGISTER then
|
|
begin
|
|
floatloadops(pfloatdef(p^.right^.resulttype)^.typ,op,opsize);
|
|
emit_ref(op,opsize,
|
|
newreference(p^.right^.location.reference));
|
|
emit_reg(A_FSTP,S_NO,
|
|
correct_fpuregister(p^.left^.location.register,fpuvaroffset+1));
|
|
end
|
|
else
|
|
begin
|
|
if (p^.right^.resulttype^.needs_inittable) and
|
|
( (p^.right^.resulttype^.deftype<>objectdef) or
|
|
not(pobjectdef(p^.right^.resulttype)^.is_class)) then
|
|
begin
|
|
{ this would be a problem }
|
|
if not(p^.left^.resulttype^.needs_inittable) then
|
|
internalerror(3457);
|
|
|
|
{ increment source reference counter }
|
|
new(r);
|
|
reset_reference(r^);
|
|
r^.symbol:=p^.right^.resulttype^.get_inittable_label;
|
|
emitpushreferenceaddr(r^);
|
|
|
|
emitpushreferenceaddr(p^.right^.location.reference);
|
|
emitcall('FPC_ADDREF');
|
|
{ decrement destination reference counter }
|
|
new(r);
|
|
reset_reference(r^);
|
|
r^.symbol:=p^.left^.resulttype^.get_inittable_label;
|
|
emitpushreferenceaddr(r^);
|
|
emitpushreferenceaddr(p^.left^.location.reference);
|
|
emitcall('FPC_DECREF');
|
|
end;
|
|
|
|
{$ifdef regallocfix}
|
|
concatcopy(p^.right^.location.reference,
|
|
p^.left^.location.reference,p^.left^.resulttype^.size,true,false);
|
|
ungetiftemp(p^.right^.location.reference);
|
|
{$Else regallocfix}
|
|
concatcopy(p^.right^.location.reference,
|
|
p^.left^.location.reference,p^.left^.resulttype^.size,false,false);
|
|
ungetiftemp(p^.right^.location.reference);
|
|
{$endif regallocfix}
|
|
end;
|
|
end;
|
|
{$ifdef SUPPORT_MMX}
|
|
LOC_CMMXREGISTER,
|
|
LOC_MMXREGISTER:
|
|
begin
|
|
if loc=LOC_CMMXREGISTER then
|
|
emit_reg_reg(A_MOVQ,S_NO,
|
|
p^.right^.location.register,p^.left^.location.register)
|
|
else
|
|
emit_reg_ref(A_MOVQ,S_NO,
|
|
p^.right^.location.register,newreference(p^.left^.location.reference));
|
|
end;
|
|
{$endif SUPPORT_MMX}
|
|
LOC_REGISTER,
|
|
LOC_CREGISTER : begin
|
|
case p^.right^.resulttype^.size of
|
|
1 : opsize:=S_B;
|
|
2 : opsize:=S_W;
|
|
4 : opsize:=S_L;
|
|
8 : opsize:=S_L;
|
|
end;
|
|
{ simplified with op_reg_loc }
|
|
if loc=LOC_CREGISTER then
|
|
begin
|
|
emit_reg_reg(A_MOV,opsize,
|
|
p^.right^.location.register,
|
|
p^.left^.location.register);
|
|
{$IfDef regallocfix}
|
|
ungetregister(p^.right^.location.register);
|
|
{$EndIf regallocfix}
|
|
end
|
|
else
|
|
Begin
|
|
emit_reg_ref(A_MOV,opsize,
|
|
p^.right^.location.register,
|
|
newreference(p^.left^.location.reference));
|
|
{$IfDef regallocfix}
|
|
ungetregister(p^.right^.location.register);
|
|
del_reference(p^.left^.location.reference);
|
|
{$EndIf regallocfix}
|
|
end;
|
|
if is_64bitint(p^.right^.resulttype) then
|
|
begin
|
|
{ simplified with op_reg_loc }
|
|
if loc=LOC_CREGISTER then
|
|
emit_reg_reg(A_MOV,opsize,
|
|
p^.right^.location.registerhigh,
|
|
p^.left^.location.registerhigh)
|
|
else
|
|
begin
|
|
r:=newreference(p^.left^.location.reference);
|
|
inc(r^.offset,4);
|
|
emit_reg_ref(A_MOV,opsize,
|
|
p^.right^.location.registerhigh,r);
|
|
end;
|
|
end;
|
|
{emit_reg_loc(A_MOV,opsize,
|
|
p^.right^.location.register,
|
|
p^.left^.location); }
|
|
|
|
end;
|
|
LOC_FPU : begin
|
|
if (p^.left^.resulttype^.deftype=floatdef) then
|
|
fputyp:=pfloatdef(p^.left^.resulttype)^.typ
|
|
else
|
|
if (p^.right^.resulttype^.deftype=floatdef) then
|
|
fputyp:=pfloatdef(p^.right^.resulttype)^.typ
|
|
else
|
|
if (p^.right^.treetype=typeconvn) and
|
|
(p^.right^.left^.resulttype^.deftype=floatdef) then
|
|
fputyp:=pfloatdef(p^.right^.left^.resulttype)^.typ
|
|
else
|
|
fputyp:=s32real;
|
|
case loc of
|
|
LOC_CFPUREGISTER:
|
|
begin
|
|
emit_reg(A_FSTP,S_NO,
|
|
correct_fpuregister(p^.left^.location.register,fpuvaroffset));
|
|
dec(fpuvaroffset);
|
|
end;
|
|
LOC_REFERENCE:
|
|
floatstore(fputyp,p^.left^.location.reference);
|
|
else
|
|
internalerror(48991);
|
|
end;
|
|
end;
|
|
LOC_CFPUREGISTER: begin
|
|
if (p^.left^.resulttype^.deftype=floatdef) then
|
|
fputyp:=pfloatdef(p^.left^.resulttype)^.typ
|
|
else
|
|
if (p^.right^.resulttype^.deftype=floatdef) then
|
|
fputyp:=pfloatdef(p^.right^.resulttype)^.typ
|
|
else
|
|
if (p^.right^.treetype=typeconvn) and
|
|
(p^.right^.left^.resulttype^.deftype=floatdef) then
|
|
fputyp:=pfloatdef(p^.right^.left^.resulttype)^.typ
|
|
else
|
|
fputyp:=s32real;
|
|
emit_reg(A_FLD,S_NO,
|
|
correct_fpuregister(p^.right^.location.register,fpuvaroffset));
|
|
inc(fpuvaroffset);
|
|
case loc of
|
|
LOC_CFPUREGISTER:
|
|
begin
|
|
emit_reg(A_FSTP,S_NO,
|
|
correct_fpuregister(p^.right^.location.register,fpuvaroffset));
|
|
dec(fpuvaroffset);
|
|
end;
|
|
LOC_REFERENCE:
|
|
floatstore(fputyp,p^.left^.location.reference);
|
|
else
|
|
internalerror(48992);
|
|
end;
|
|
end;
|
|
LOC_JUMP : begin
|
|
getlabel(hlabel);
|
|
emitlab(truelabel);
|
|
if loc=LOC_CREGISTER then
|
|
emit_const_reg(A_MOV,S_B,
|
|
1,p^.left^.location.register)
|
|
else
|
|
emit_const_ref(A_MOV,S_B,
|
|
1,newreference(p^.left^.location.reference));
|
|
{emit_const_loc(A_MOV,S_B,
|
|
1,p^.left^.location);}
|
|
emitjmp(C_None,hlabel);
|
|
emitlab(falselabel);
|
|
if loc=LOC_CREGISTER then
|
|
emit_reg_reg(A_XOR,S_B,
|
|
p^.left^.location.register,
|
|
p^.left^.location.register)
|
|
else
|
|
begin
|
|
emit_const_ref(A_MOV,S_B,
|
|
0,newreference(p^.left^.location.reference));
|
|
{$IfDef regallocfix}
|
|
del_reference(p^.left^.location.reference);
|
|
{$EndIf regallocfix}
|
|
end;
|
|
emitlab(hlabel);
|
|
end;
|
|
LOC_FLAGS : begin
|
|
if loc=LOC_CREGISTER then
|
|
emit_flag2reg(p^.right^.location.resflags,p^.left^.location.register)
|
|
else
|
|
begin
|
|
ai:=new(paicpu,op_ref(A_Setcc,S_B,newreference(p^.left^.location.reference)));
|
|
ai^.SetCondition(flag_2_cond[p^.right^.location.resflags]);
|
|
exprasmlist^.concat(ai);
|
|
end;
|
|
{$IfDef regallocfix}
|
|
del_reference(p^.left^.location.reference);
|
|
{$EndIf regallocfix}
|
|
end;
|
|
end;
|
|
freelabel(truelabel);
|
|
freelabel(falselabel);
|
|
truelabel:=otlabel;
|
|
falselabel:=oflabel;
|
|
end;
|
|
|
|
|
|
{*****************************************************************************
|
|
SecondFuncRet
|
|
*****************************************************************************}
|
|
|
|
procedure secondfuncret(var p : ptree);
|
|
var
|
|
hr : tregister;
|
|
hp : preference;
|
|
pp : pprocinfo;
|
|
hr_valid : boolean;
|
|
begin
|
|
reset_reference(p^.location.reference);
|
|
hr_valid:=false;
|
|
if @procinfo<>pprocinfo(p^.funcretprocinfo) then
|
|
begin
|
|
hr:=getregister32;
|
|
hr_valid:=true;
|
|
hp:=new_reference(procinfo.framepointer,
|
|
procinfo.framepointer_offset);
|
|
emit_ref_reg(A_MOV,S_L,hp,hr);
|
|
pp:=procinfo.parent;
|
|
{ walk up the stack frame }
|
|
while pp<>pprocinfo(p^.funcretprocinfo) do
|
|
begin
|
|
hp:=new_reference(hr,
|
|
pp^.framepointer_offset);
|
|
emit_ref_reg(A_MOV,S_L,hp,hr);
|
|
pp:=pp^.parent;
|
|
end;
|
|
p^.location.reference.base:=hr;
|
|
end
|
|
else
|
|
p^.location.reference.base:=procinfo.framepointer;
|
|
p^.location.reference.offset:=procinfo.retoffset;
|
|
if ret_in_param(p^.retdef) then
|
|
begin
|
|
if not hr_valid then
|
|
hr:=getregister32;
|
|
emit_ref_reg(A_MOV,S_L,newreference(p^.location.reference),hr);
|
|
p^.location.reference.base:=hr;
|
|
p^.location.reference.offset:=0;
|
|
end;
|
|
end;
|
|
|
|
|
|
{*****************************************************************************
|
|
SecondArrayConstruct
|
|
*****************************************************************************}
|
|
|
|
const
|
|
vtInteger = 0;
|
|
vtBoolean = 1;
|
|
vtChar = 2;
|
|
vtExtended = 3;
|
|
vtString = 4;
|
|
vtPointer = 5;
|
|
vtPChar = 6;
|
|
vtObject = 7;
|
|
vtClass = 8;
|
|
vtWideChar = 9;
|
|
vtPWideChar = 10;
|
|
vtAnsiString = 11;
|
|
vtCurrency = 12;
|
|
vtVariant = 13;
|
|
vtInterface = 14;
|
|
vtWideString = 15;
|
|
vtInt64 = 16;
|
|
|
|
procedure secondarrayconstruct(var p : ptree);
|
|
var
|
|
hp : ptree;
|
|
href : treference;
|
|
lt : pdef;
|
|
vaddr : boolean;
|
|
vtype : longint;
|
|
dovariant : boolean;
|
|
elesize : longint;
|
|
begin
|
|
dovariant:=p^.forcevaria or parraydef(p^.resulttype)^.isvariant;
|
|
if dovariant then
|
|
elesize:=8
|
|
else
|
|
begin
|
|
elesize:=parraydef(p^.resulttype)^.elesize;
|
|
if elesize>4 then
|
|
internalerror(8765678);
|
|
end;
|
|
if not p^.cargs then
|
|
begin
|
|
reset_reference(p^.location.reference);
|
|
{ Allocate always a temp, also if no elements are required, to
|
|
be sure that location is valid (PFV) }
|
|
if parraydef(p^.resulttype)^.highrange=-1 then
|
|
gettempofsizereference(elesize,p^.location.reference)
|
|
else
|
|
gettempofsizereference((parraydef(p^.resulttype)^.highrange+1)*elesize,p^.location.reference);
|
|
href:=p^.location.reference;
|
|
end;
|
|
hp:=p;
|
|
while assigned(hp) do
|
|
begin
|
|
if assigned(hp^.left) then
|
|
begin
|
|
secondpass(hp^.left);
|
|
if codegenerror then
|
|
exit;
|
|
if dovariant then
|
|
begin
|
|
{ find the correct vtype value }
|
|
vtype:=$ff;
|
|
vaddr:=false;
|
|
lt:=hp^.left^.resulttype;
|
|
case lt^.deftype of
|
|
enumdef,
|
|
orddef :
|
|
begin
|
|
if (lt^.deftype=enumdef) or
|
|
is_integer(lt) then
|
|
vtype:=vtInteger
|
|
else
|
|
if is_boolean(lt) then
|
|
vtype:=vtBoolean
|
|
else
|
|
if (lt^.deftype=orddef) and (porddef(lt)^.typ=uchar) then
|
|
vtype:=vtChar;
|
|
end;
|
|
floatdef :
|
|
begin
|
|
vtype:=vtExtended;
|
|
vaddr:=true;
|
|
end;
|
|
procvardef,
|
|
pointerdef :
|
|
begin
|
|
if is_pchar(lt) then
|
|
vtype:=vtPChar
|
|
else
|
|
vtype:=vtPointer;
|
|
end;
|
|
classrefdef :
|
|
vtype:=vtClass;
|
|
objectdef :
|
|
begin
|
|
vtype:=vtObject;
|
|
end;
|
|
stringdef :
|
|
begin
|
|
if is_shortstring(lt) then
|
|
begin
|
|
vtype:=vtString;
|
|
vaddr:=true;
|
|
end
|
|
else
|
|
if is_ansistring(lt) then
|
|
vtype:=vtAnsiString;
|
|
end;
|
|
end;
|
|
if vtype=$ff then
|
|
internalerror(14357);
|
|
{ write C style pushes or an pascal array }
|
|
if p^.cargs then
|
|
begin
|
|
if vaddr then
|
|
begin
|
|
emit_to_reference(hp^.left);
|
|
emit_push_lea_loc(hp^.left^.location);
|
|
end
|
|
else
|
|
emit_push_loc(hp^.left^.location);
|
|
end
|
|
else
|
|
begin
|
|
{ update href to the vtype field and write it }
|
|
emit_const_ref(A_MOV,S_L,
|
|
vtype,newreference(href));
|
|
inc(href.offset,4);
|
|
{ write changing field update href to the next element }
|
|
if vaddr then
|
|
begin
|
|
emit_to_reference(hp^.left);
|
|
emit_lea_loc_ref(hp^.left^.location,href);
|
|
end
|
|
else
|
|
emit_mov_loc_ref(hp^.left^.location,href,S_L);
|
|
inc(href.offset,4);
|
|
end;
|
|
end
|
|
else
|
|
{ normal array constructor of the same type }
|
|
begin
|
|
case elesize of
|
|
1 :
|
|
emit_mov_loc_ref(hp^.left^.location,href,S_B);
|
|
2 :
|
|
emit_mov_loc_ref(hp^.left^.location,href,S_W);
|
|
4 :
|
|
emit_mov_loc_ref(hp^.left^.location,href,S_L);
|
|
else
|
|
internalerror(87656781);
|
|
end;
|
|
inc(href.offset,elesize);
|
|
end;
|
|
end;
|
|
{ load next entry }
|
|
hp:=hp^.right;
|
|
end;
|
|
end;
|
|
|
|
|
|
end.
|
|
{
|
|
$Log$
|
|
Revision 1.79 1999-08-25 16:41:05 peter
|
|
* resources are working again
|
|
|
|
Revision 1.78 1999/08/25 11:59:43 jonas
|
|
* changed pai386, paippc and paiapha (same for tai*) to paicpu (taicpu)
|
|
|
|
Revision 1.77 1999/08/24 22:38:51 michael
|
|
* more resourcestring changes
|
|
|
|
Revision 1.76 1999/08/23 11:45:39 michael
|
|
* Hopefully final attempt at resourcestrings
|
|
|
|
Revision 1.75 1999/08/19 13:08:49 pierre
|
|
* emit_??? used
|
|
|
|
Revision 1.74 1999/08/17 13:26:06 peter
|
|
* arrayconstructor -> arrayofconst fixed when arraycosntructor was not
|
|
variant.
|
|
|
|
Revision 1.73 1999/08/13 21:33:09 peter
|
|
* support for array constructors extended and more error checking
|
|
|
|
Revision 1.72 1999/08/09 22:19:50 peter
|
|
* classes vmt changed to only positive addresses
|
|
* sharedlib creation is working
|
|
|
|
Revision 1.71 1999/08/07 14:20:55 florian
|
|
* some small problems fixed
|
|
|
|
Revision 1.70 1999/08/04 13:45:22 florian
|
|
+ floating point register variables !!
|
|
* pairegalloc is now generated for register variables
|
|
|
|
Revision 1.69 1999/08/04 00:22:50 florian
|
|
* renamed i386asm and i386base to cpuasm and cpubase
|
|
|
|
Revision 1.68 1999/08/03 22:02:43 peter
|
|
* moved bitmask constants to sets
|
|
* some other type/const renamings
|
|
|
|
Revision 1.67 1999/07/27 23:36:36 peter
|
|
* try to determine the fpu type needed in assignment
|
|
|
|
Revision 1.66 1999/07/24 15:12:56 michael
|
|
changes for resourcestrings
|
|
|
|
Revision 1.65 1999/07/23 23:09:06 peter
|
|
* resourcestring fix
|
|
|
|
Revision 1.64 1999/07/22 09:37:37 florian
|
|
+ resourcestring implemented
|
|
+ start of longstring support
|
|
|
|
Revision 1.63 1999/07/05 20:13:12 peter
|
|
* removed temp defines
|
|
|
|
Revision 1.62 1999/06/30 15:43:18 florian
|
|
* two bugs regarding method variables fixed
|
|
- if you take in a method the address of another method
|
|
don't need self anymore
|
|
- if the class pointer was in a register, wrong code for a method
|
|
variable load was generated
|
|
|
|
Revision 1.61 1999/06/28 22:29:11 florian
|
|
* qword division fixed
|
|
+ code for qword/int64 type casting added:
|
|
range checking isn't implemented yet
|
|
|
|
Revision 1.60 1999/05/31 12:42:43 peter
|
|
* fixed crash with empty array constructor
|
|
|
|
Revision 1.59 1999/05/27 19:44:14 peter
|
|
* removed oldasm
|
|
* plabel -> pasmlabel
|
|
* -a switches to source writing automaticly
|
|
* assembler readers OOPed
|
|
* asmsymbol automaticly external
|
|
* jumptables and other label fixes for asm readers
|
|
|
|
Revision 1.58 1999/05/23 18:42:02 florian
|
|
* better error recovering in typed constants
|
|
* some problems with arrays of const fixed, some problems
|
|
due my previous
|
|
- the location type of array constructor is now LOC_MEM
|
|
- the pushing of high fixed
|
|
- parameter copying fixed
|
|
- zero temp. allocation removed
|
|
* small problem in the assembler writers fixed:
|
|
ref to nil wasn't written correctly
|
|
|
|
Revision 1.57 1999/05/21 13:54:51 peter
|
|
* NEWLAB for label as symbol
|
|
|
|
Revision 1.56 1999/05/17 23:51:38 peter
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* with temp vars now use a reference with a persistant temp instead
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of setting datasize
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Revision 1.55 1999/05/17 21:57:04 florian
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* new temporary ansistring handling
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Revision 1.54 1999/05/12 00:19:43 peter
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* removed R_DEFAULT_SEG
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* uniform float names
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Revision 1.53 1999/05/06 09:05:16 peter
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* generic write_float and str_float
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* fixed constant float conversions
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Revision 1.52 1999/05/01 13:24:10 peter
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* merged nasm compiler
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* old asm moved to oldasm/
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Revision 1.51 1999/04/28 06:01:55 florian
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* changes of Bruessel:
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+ message handler can now take an explicit self
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* typinfo fixed: sometimes the type names weren't written
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* the type checking for pointer comparisations and subtraction
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and are now more strict (was also buggy)
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* small bug fix to link.pas to support compiling on another
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drive
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* probable bug in popt386 fixed: call/jmp => push/jmp
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transformation didn't count correctly the jmp references
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+ threadvar support
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* warning if ln/sqrt gets an invalid constant argument
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Revision 1.50 1999/04/16 13:42:26 jonas
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* more regalloc fixes (still not complete)
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Revision 1.49 1999/04/13 18:57:48 florian
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* classes which contain ansistring get unnecessary calls
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to addref/decref when they are assigned, fixed
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Revision 1.48 1999/04/09 15:48:47 jonas
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* added fix for missing register deallocation (-dregallocfix)
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Revision 1.47 1999/03/31 13:55:07 peter
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* assembler inlining working for ag386bin
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Revision 1.46 1999/03/24 23:16:52 peter
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* fixed bugs 212,222,225,227,229,231,233
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Revision 1.45 1999/02/25 21:02:28 peter
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* ag386bin updates
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+ coff writer
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Revision 1.44 1999/02/22 02:15:12 peter
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* updates for ag386bin
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Revision 1.43 1999/01/27 00:13:54 florian
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* "procedure of object"-stuff fixed
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Revision 1.42 1999/01/21 22:10:40 peter
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* fixed array of const
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* generic platform independent high() support
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Revision 1.41 1999/01/20 10:20:18 peter
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* don't make localvar copies for assembler procedures
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Revision 1.40 1998/12/30 13:41:07 peter
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* released valuepara
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Revision 1.39 1998/12/19 00:23:45 florian
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* ansistring memory leaks fixed
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Revision 1.38 1998/12/11 00:02:51 peter
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+ globtype,tokens,version unit splitted from globals
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Revision 1.37 1998/12/10 09:47:17 florian
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+ basic operations with int64/qord (compiler with -dint64)
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+ rtti of enumerations extended: names are now written
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Revision 1.36 1998/12/04 10:18:06 florian
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* some stuff for procedures of object added
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* bug with overridden virtual constructors fixed (reported by Italo Gomes)
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Revision 1.35 1998/11/30 09:43:04 pierre
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* some range check bugs fixed (still not working !)
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+ added DLL writing support for win32 (also accepts variables)
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+ TempAnsi for code that could be used for Temporary ansi strings
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handling
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Revision 1.34 1998/11/28 16:20:48 peter
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+ support for dll variables
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Revision 1.33 1998/11/27 14:50:33 peter
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+ open strings, $P switch support
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Revision 1.32 1998/11/26 09:53:36 florian
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* for classes no init/final. code is necessary, fixed
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Revision 1.31 1998/11/20 15:35:54 florian
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* problems with rtti fixed, hope it works
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Revision 1.30 1998/11/18 17:45:24 peter
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* fixes for VALUEPARA
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Revision 1.29 1998/11/18 15:44:11 peter
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* VALUEPARA for tp7 compatible value parameters
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Revision 1.28 1998/11/17 11:32:44 peter
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* optimize str:='' in H+ mode
|
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+ -! to test ansistrings
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Revision 1.27 1998/11/16 15:35:39 peter
|
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* rename laod/copystring -> load/copyshortstring
|
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* fixed int-bool cnv bug
|
|
+ char-ansistring conversion
|
|
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Revision 1.26 1998/11/10 10:09:10 peter
|
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* va_list -> array of const
|
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Revision 1.25 1998/11/05 12:02:35 peter
|
|
* released useansistring
|
|
* removed -Sv, its now available in fpc modes
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Revision 1.24 1998/10/14 08:47:14 pierre
|
|
* bugs in secondfuncret for result in subprocedures removed
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Revision 1.23 1998/10/06 17:16:44 pierre
|
|
* some memory leaks fixed (thanks to Peter for heaptrc !)
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Revision 1.22 1998/10/01 09:22:53 peter
|
|
* fixed value openarray
|
|
* ungettemp of arrayconstruct
|
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Revision 1.21 1998/09/28 11:07:39 peter
|
|
+ floatdef support for array of const
|
|
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Revision 1.20 1998/09/24 14:26:03 peter
|
|
* updated for new tvarrec
|
|
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Revision 1.19 1998/09/23 17:49:59 peter
|
|
* high(arrayconstructor) is now correct
|
|
* procvardef support for variant record
|
|
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Revision 1.18 1998/09/23 09:58:48 peter
|
|
* first working array of const things
|
|
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Revision 1.17 1998/09/20 18:00:19 florian
|
|
* small compiling problems fixed
|
|
|
|
Revision 1.16 1998/09/20 17:46:48 florian
|
|
* some things regarding ansistrings fixed
|
|
|
|
Revision 1.15 1998/09/17 09:42:16 peter
|
|
+ pass_2 for cg386
|
|
* Message() -> CGMessage() for pass_1/pass_2
|
|
|
|
Revision 1.14 1998/09/14 10:43:50 peter
|
|
* all internal RTL functions start with FPC_
|
|
|
|
Revision 1.13 1998/09/04 12:24:24 florian
|
|
* bug0159 fixed
|
|
|
|
Revision 1.12 1998/09/04 11:55:17 florian
|
|
* problem with -Or fixed
|
|
|
|
Revision 1.11 1998/09/03 16:03:14 florian
|
|
+ rtti generation
|
|
* init table generation changed
|
|
|
|
Revision 1.10 1998/08/21 14:08:40 pierre
|
|
+ TEST_FUNCRET now default (old code removed)
|
|
works also for m68k (at least compiles)
|
|
|
|
Revision 1.9 1998/08/20 09:26:37 pierre
|
|
+ funcret setting in underproc testing
|
|
compile with _dTEST_FUNCRET
|
|
|
|
Revision 1.8 1998/08/10 14:49:48 peter
|
|
+ localswitches, moduleswitches, globalswitches splitting
|
|
|
|
Revision 1.7 1998/07/30 13:30:33 florian
|
|
* final implemenation of exception support, maybe it needs
|
|
some fixes :)
|
|
|
|
Revision 1.6 1998/07/26 21:58:57 florian
|
|
+ better support for switch $H
|
|
+ index access to ansi strings added
|
|
+ assigment of data (records/arrays) containing ansi strings
|
|
|
|
Revision 1.5 1998/07/24 22:16:54 florian
|
|
* internal error 10 together with array access fixed. I hope
|
|
that's the final fix.
|
|
|
|
Revision 1.4 1998/06/11 13:58:45 peter
|
|
* fixed too long line
|
|
|
|
Revision 1.3 1998/06/09 16:01:35 pierre
|
|
+ added procedure directive parsing for procvars
|
|
(accepted are popstack cdecl and pascal)
|
|
+ added C vars with the following syntax
|
|
var C calias 'true_c_name';(can be followed by external)
|
|
reason is that you must add the Cprefix
|
|
|
|
which is target dependent
|
|
|
|
Revision 1.2 1998/06/08 13:13:34 pierre
|
|
+ temporary variables now in temp_gen.pas unit
|
|
because it is processor independent
|
|
* mppc68k.bat modified to undefine i386 and support_mmx
|
|
(which are defaults for i386)
|
|
|
|
Revision 1.1 1998/06/05 17:44:12 peter
|
|
* splitted cgi386
|
|
|
|
}
|
|
|