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https://gitlab.com/freepascal.org/fpc/source.git
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1296 lines
49 KiB
ObjectPascal
1296 lines
49 KiB
ObjectPascal
{
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$Id$
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Copyright (c) 1993-98 by Florian Klaempfl
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Type checking and register allocation for add node
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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 tcadd;
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interface
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uses
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tree;
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procedure firstadd(var p : ptree);
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function isbinaryoverloaded(var p : ptree) : boolean;
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implementation
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uses
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globtype,systems,tokens,
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cobjects,verbose,globals,
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symconst,symtable,aasm,types,
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hcodegen,htypechk,pass_1,
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cpubase,tccnv
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;
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function isbinaryoverloaded(var p : ptree) : boolean;
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var
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rd,ld : pdef;
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t : ptree;
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optoken : ttoken;
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begin
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isbinaryoverloaded:=false;
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{ overloaded operator ? }
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{ load easier access variables }
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rd:=p^.right^.resulttype;
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ld:=p^.left^.resulttype;
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if (p^.treetype=starstarn) or
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(ld^.deftype=recorddef) or
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((ld^.deftype=arraydef) and
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not((cs_mmx in aktlocalswitches) and
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is_mmx_able_array(ld)) and
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(not (rd^.deftype in [orddef])) and
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(not is_chararray(ld))
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) or
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{ <> and = are defined for classes }
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((ld^.deftype=objectdef) and
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(not(pobjectdef(ld)^.is_class) or
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not(p^.treetype in [equaln,unequaln])
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)
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) or
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(rd^.deftype=recorddef) or
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((rd^.deftype=arraydef) and
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not((cs_mmx in aktlocalswitches) and
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is_mmx_able_array(rd)) and
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(not (ld^.deftype in [orddef])) and
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(not is_chararray(rd))
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) or
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{ <> and = are defined for classes }
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((rd^.deftype=objectdef) and
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(not(pobjectdef(rd)^.is_class) or
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not(p^.treetype in [equaln,unequaln])
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)
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) then
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begin
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isbinaryoverloaded:=true;
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{!!!!!!!!! handle paras }
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case p^.treetype of
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{ the nil as symtable signs firstcalln that this is
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an overloaded operator }
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addn:
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optoken:=_PLUS;
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subn:
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optoken:=_MINUS;
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muln:
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optoken:=_STAR;
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starstarn:
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optoken:=_STARSTAR;
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slashn:
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optoken:=_SLASH;
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ltn:
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optoken:=tokens._lt;
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gtn:
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optoken:=tokens._gt;
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lten:
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optoken:=_lte;
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gten:
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optoken:=_gte;
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equaln,unequaln :
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optoken:=_EQUAL;
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symdifn :
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optoken:=_SYMDIF;
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modn :
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optoken:=_OP_MOD;
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orn :
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optoken:=_OP_OR;
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xorn :
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optoken:=_OP_XOR;
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andn :
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optoken:=_OP_AND;
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divn :
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optoken:=_OP_DIV;
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shln :
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optoken:=_OP_SHL;
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shrn :
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optoken:=_OP_SHR;
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else
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exit;
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end;
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t:=gencallnode(overloaded_operators[optoken],nil);
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{ we have to convert p^.left and p^.right into
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callparanodes }
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if t^.symtableprocentry=nil then
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begin
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CGMessage(parser_e_operator_not_overloaded);
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putnode(t);
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end
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else
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begin
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inc(t^.symtableprocentry^.refs);
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t^.left:=gencallparanode(p^.left,nil);
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t^.left:=gencallparanode(p^.right,t^.left);
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if p^.treetype=unequaln then
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t:=gensinglenode(notn,t);
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firstpass(t);
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putnode(p);
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p:=t;
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end;
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end;
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end;
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{*****************************************************************************
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FirstAdd
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*****************************************************************************}
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procedure firstadd(var p : ptree);
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procedure make_bool_equal_size(var p:ptree);
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begin
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if porddef(p^.left^.resulttype)^.typ>porddef(p^.right^.resulttype)^.typ then
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begin
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p^.right:=gentypeconvnode(p^.right,porddef(p^.left^.resulttype));
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p^.right^.convtyp:=tc_bool_2_int;
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p^.right^.explizit:=true;
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firstpass(p^.right);
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end
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else
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if porddef(p^.left^.resulttype)^.typ<porddef(p^.right^.resulttype)^.typ then
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begin
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p^.left:=gentypeconvnode(p^.left,porddef(p^.right^.resulttype));
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p^.left^.convtyp:=tc_bool_2_int;
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p^.left^.explizit:=true;
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firstpass(p^.left);
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end;
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end;
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var
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t,hp : ptree;
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ot,
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lt,rt : ttreetyp;
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rv,lv : longint;
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rvd,lvd : bestreal;
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resdef,
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rd,ld : pdef;
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tempdef : pdef;
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concatstrings : boolean;
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{ to evalute const sets }
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resultset : pconstset;
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i : longint;
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b : boolean;
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convdone : boolean;
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s1,s2 : pchar;
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l1,l2 : longint;
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begin
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{ first do the two subtrees }
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firstpass(p^.left);
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firstpass(p^.right);
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if codegenerror then
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exit;
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{ convert array constructors to sets, because there is no other operator
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possible for array constructors }
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if is_array_constructor(p^.left^.resulttype) then
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arrayconstructor_to_set(p^.left);
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if is_array_constructor(p^.right^.resulttype) then
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arrayconstructor_to_set(p^.right);
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{ both left and right need to be valid }
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set_varstate(p^.left,true);
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set_varstate(p^.right,true);
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{ load easier access variables }
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lt:=p^.left^.treetype;
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rt:=p^.right^.treetype;
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rd:=p^.right^.resulttype;
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ld:=p^.left^.resulttype;
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convdone:=false;
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if isbinaryoverloaded(p) then
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exit;
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{ compact consts }
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{ convert int consts to real consts, if the }
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{ other operand is a real const }
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if (rt=realconstn) and is_constintnode(p^.left) then
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begin
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t:=genrealconstnode(p^.left^.value,p^.right^.resulttype);
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disposetree(p^.left);
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p^.left:=t;
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lt:=realconstn;
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end;
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if (lt=realconstn) and is_constintnode(p^.right) then
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begin
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t:=genrealconstnode(p^.right^.value,p^.left^.resulttype);
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disposetree(p^.right);
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p^.right:=t;
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rt:=realconstn;
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end;
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{ both are int constants, also allow operations on two equal enums
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in fpc mode (Needed for conversion of C code) }
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if ((lt=ordconstn) and (rt=ordconstn)) and
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((is_constintnode(p^.left) and is_constintnode(p^.right)) or
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(is_constboolnode(p^.left) and is_constboolnode(p^.right) and
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(p^.treetype in [ltn,lten,gtn,gten,equaln,unequaln,andn,xorn,orn]))) then
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begin
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{ return a boolean for boolean operations (and,xor,or) }
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if is_constboolnode(p^.left) then
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resdef:=booldef
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else
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resdef:=s32bitdef;
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lv:=p^.left^.value;
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rv:=p^.right^.value;
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case p^.treetype of
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addn : t:=genordinalconstnode(lv+rv,resdef);
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subn : t:=genordinalconstnode(lv-rv,resdef);
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muln : t:=genordinalconstnode(lv*rv,resdef);
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xorn : t:=genordinalconstnode(lv xor rv,resdef);
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orn : t:=genordinalconstnode(lv or rv,resdef);
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andn : t:=genordinalconstnode(lv and rv,resdef);
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ltn : t:=genordinalconstnode(ord(lv<rv),booldef);
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lten : t:=genordinalconstnode(ord(lv<=rv),booldef);
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gtn : t:=genordinalconstnode(ord(lv>rv),booldef);
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gten : t:=genordinalconstnode(ord(lv>=rv),booldef);
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equaln : t:=genordinalconstnode(ord(lv=rv),booldef);
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unequaln : t:=genordinalconstnode(ord(lv<>rv),booldef);
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slashn : begin
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{ int/int becomes a real }
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if int(rv)=0 then
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begin
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Message(parser_e_invalid_float_operation);
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t:=genrealconstnode(0,bestrealdef^);
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end
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else
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t:=genrealconstnode(int(lv)/int(rv),bestrealdef^);
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firstpass(t);
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end;
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else
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CGMessage(type_e_mismatch);
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end;
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disposetree(p);
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firstpass(t);
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p:=t;
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exit;
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end;
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{ both real constants ? }
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if (lt=realconstn) and (rt=realconstn) then
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begin
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lvd:=p^.left^.value_real;
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rvd:=p^.right^.value_real;
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case p^.treetype of
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addn : t:=genrealconstnode(lvd+rvd,bestrealdef^);
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subn : t:=genrealconstnode(lvd-rvd,bestrealdef^);
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muln : t:=genrealconstnode(lvd*rvd,bestrealdef^);
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starstarn,
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caretn : begin
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if lvd<0 then
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begin
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Message(parser_e_invalid_float_operation);
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t:=genrealconstnode(0,bestrealdef^);
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end
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else if lvd=0 then
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t:=genrealconstnode(1.0,bestrealdef^)
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else
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t:=genrealconstnode(exp(ln(lvd)*rvd),bestrealdef^);
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end;
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slashn :
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begin
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if rvd=0 then
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begin
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Message(parser_e_invalid_float_operation);
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t:=genrealconstnode(0,bestrealdef^);
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end
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else
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t:=genrealconstnode(lvd/rvd,bestrealdef^);
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end;
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ltn : t:=genordinalconstnode(ord(lvd<rvd),booldef);
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lten : t:=genordinalconstnode(ord(lvd<=rvd),booldef);
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gtn : t:=genordinalconstnode(ord(lvd>rvd),booldef);
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gten : t:=genordinalconstnode(ord(lvd>=rvd),booldef);
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equaln : t:=genordinalconstnode(ord(lvd=rvd),booldef);
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unequaln : t:=genordinalconstnode(ord(lvd<>rvd),booldef);
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else
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CGMessage(type_e_mismatch);
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end;
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disposetree(p);
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p:=t;
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firstpass(p);
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exit;
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end;
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{ concating strings ? }
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concatstrings:=false;
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s1:=nil;
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s2:=nil;
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if (lt=ordconstn) and (rt=ordconstn) and
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is_char(ld) and is_char(rd) then
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begin
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s1:=strpnew(char(byte(p^.left^.value)));
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s2:=strpnew(char(byte(p^.right^.value)));
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l1:=1;
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l2:=1;
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concatstrings:=true;
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end
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else
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if (lt=stringconstn) and (rt=ordconstn) and is_char(rd) then
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begin
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s1:=getpcharcopy(p^.left);
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l1:=p^.left^.length;
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s2:=strpnew(char(byte(p^.right^.value)));
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l2:=1;
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concatstrings:=true;
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end
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else
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if (lt=ordconstn) and (rt=stringconstn) and is_char(ld) then
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begin
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s1:=strpnew(char(byte(p^.left^.value)));
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l1:=1;
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s2:=getpcharcopy(p^.right);
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l2:=p^.right^.length;
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concatstrings:=true;
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end
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else if (lt=stringconstn) and (rt=stringconstn) then
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begin
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s1:=getpcharcopy(p^.left);
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l1:=p^.left^.length;
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s2:=getpcharcopy(p^.right);
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l2:=p^.right^.length;
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concatstrings:=true;
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end;
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{ I will need to translate all this to ansistrings !!! }
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if concatstrings then
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begin
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case p^.treetype of
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addn :
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t:=genpcharconstnode(concatansistrings(s1,s2,l1,l2),l1+l2);
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ltn :
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t:=genordinalconstnode(byte(compareansistrings(s1,s2,l1,l2)<0),booldef);
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lten :
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t:=genordinalconstnode(byte(compareansistrings(s1,s2,l1,l2)<=0),booldef);
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gtn :
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t:=genordinalconstnode(byte(compareansistrings(s1,s2,l1,l2)>0),booldef);
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gten :
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t:=genordinalconstnode(byte(compareansistrings(s1,s2,l1,l2)>=0),booldef);
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equaln :
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t:=genordinalconstnode(byte(compareansistrings(s1,s2,l1,l2)=0),booldef);
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unequaln :
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t:=genordinalconstnode(byte(compareansistrings(s1,s2,l1,l2)<>0),booldef);
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end;
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ansistringdispose(s1,l1);
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ansistringdispose(s2,l2);
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disposetree(p);
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firstpass(t);
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p:=t;
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exit;
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end;
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{ if both are orddefs then check sub types }
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if (ld^.deftype=orddef) and (rd^.deftype=orddef) then
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begin
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{ 2 booleans ? }
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if is_boolean(ld) and is_boolean(rd) then
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begin
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case p^.treetype of
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andn,
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orn:
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begin
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calcregisters(p,0,0,0);
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make_bool_equal_size(p);
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p^.location.loc:=LOC_JUMP;
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end;
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xorn,ltn,lten,gtn,gten :
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begin
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make_bool_equal_size(p);
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if (p^.left^.location.loc in [LOC_JUMP,LOC_FLAGS]) and
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(p^.left^.location.loc in [LOC_JUMP,LOC_FLAGS]) then
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calcregisters(p,2,0,0)
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else
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calcregisters(p,1,0,0);
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end;
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unequaln,
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equaln:
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begin
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make_bool_equal_size(p);
|
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{ Remove any compares with constants }
|
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if (p^.left^.treetype=ordconstn) then
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begin
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hp:=p^.right;
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b:=(p^.left^.value<>0);
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ot:=p^.treetype;
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disposetree(p^.left);
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putnode(p);
|
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p:=hp;
|
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if (not(b) and (ot=equaln)) or
|
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(b and (ot=unequaln)) then
|
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begin
|
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p:=gensinglenode(notn,p);
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firstpass(p);
|
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end;
|
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exit;
|
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end;
|
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if (p^.right^.treetype=ordconstn) then
|
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begin
|
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hp:=p^.left;
|
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b:=(p^.right^.value<>0);
|
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ot:=p^.treetype;
|
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disposetree(p^.right);
|
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putnode(p);
|
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p:=hp;
|
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if (not(b) and (ot=equaln)) or
|
|
(b and (ot=unequaln)) then
|
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begin
|
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p:=gensinglenode(notn,p);
|
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firstpass(p);
|
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end;
|
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exit;
|
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end;
|
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if (p^.left^.location.loc in [LOC_JUMP,LOC_FLAGS]) and
|
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(p^.left^.location.loc in [LOC_JUMP,LOC_FLAGS]) then
|
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calcregisters(p,2,0,0)
|
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else
|
|
calcregisters(p,1,0,0);
|
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end;
|
|
else
|
|
CGMessage(type_e_mismatch);
|
|
end;
|
|
|
|
{ these one can't be in flags! }
|
|
if p^.treetype in [xorn,unequaln,equaln] then
|
|
begin
|
|
if p^.left^.location.loc=LOC_FLAGS then
|
|
begin
|
|
p^.left:=gentypeconvnode(p^.left,porddef(p^.left^.resulttype));
|
|
p^.left^.convtyp:=tc_bool_2_int;
|
|
p^.left^.explizit:=true;
|
|
firstpass(p^.left);
|
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end;
|
|
if p^.right^.location.loc=LOC_FLAGS then
|
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begin
|
|
p^.right:=gentypeconvnode(p^.right,porddef(p^.right^.resulttype));
|
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p^.right^.convtyp:=tc_bool_2_int;
|
|
p^.right^.explizit:=true;
|
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firstpass(p^.right);
|
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end;
|
|
{ readjust registers }
|
|
calcregisters(p,1,0,0);
|
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end;
|
|
convdone:=true;
|
|
end
|
|
else
|
|
{ Both are chars? only convert to shortstrings for addn }
|
|
if is_char(rd) and is_char(ld) then
|
|
begin
|
|
if p^.treetype=addn then
|
|
begin
|
|
p^.left:=gentypeconvnode(p^.left,cshortstringdef);
|
|
p^.right:=gentypeconvnode(p^.right,cshortstringdef);
|
|
firstpass(p^.left);
|
|
firstpass(p^.right);
|
|
{ here we call STRCOPY }
|
|
procinfo^.flags:=procinfo^.flags or pi_do_call;
|
|
calcregisters(p,0,0,0);
|
|
p^.location.loc:=LOC_MEM;
|
|
end
|
|
else
|
|
calcregisters(p,1,0,0);
|
|
convdone:=true;
|
|
end
|
|
{ is there a 64 bit type ? }
|
|
else if (porddef(rd)^.typ=s64bit) or (porddef(ld)^.typ=s64bit) then
|
|
begin
|
|
if (porddef(ld)^.typ<>s64bit) then
|
|
begin
|
|
p^.left:=gentypeconvnode(p^.left,cs64bitdef);
|
|
firstpass(p^.left);
|
|
end;
|
|
if (porddef(rd)^.typ<>s64bit) then
|
|
begin
|
|
p^.right:=gentypeconvnode(p^.right,cs64bitdef);
|
|
firstpass(p^.right);
|
|
end;
|
|
calcregisters(p,2,0,0);
|
|
convdone:=true;
|
|
end
|
|
else if (porddef(rd)^.typ=u64bit) or (porddef(ld)^.typ=u64bit) then
|
|
begin
|
|
if (porddef(ld)^.typ<>u64bit) then
|
|
begin
|
|
p^.left:=gentypeconvnode(p^.left,cu64bitdef);
|
|
firstpass(p^.left);
|
|
end;
|
|
if (porddef(rd)^.typ<>u64bit) then
|
|
begin
|
|
p^.right:=gentypeconvnode(p^.right,cu64bitdef);
|
|
firstpass(p^.right);
|
|
end;
|
|
calcregisters(p,2,0,0);
|
|
convdone:=true;
|
|
end
|
|
else
|
|
{ is there a cardinal? }
|
|
if (porddef(rd)^.typ=u32bit) or (porddef(ld)^.typ=u32bit) then
|
|
begin
|
|
{ convert constants to u32bit }
|
|
if (porddef(ld)^.typ<>u32bit) then
|
|
begin
|
|
{ s32bit will be used for when the other is also s32bit }
|
|
if (porddef(rd)^.typ=s32bit) and (lt<>ordconstn) then
|
|
p^.left:=gentypeconvnode(p^.left,s32bitdef)
|
|
else
|
|
p^.left:=gentypeconvnode(p^.left,u32bitdef);
|
|
firstpass(p^.left);
|
|
end;
|
|
if (porddef(rd)^.typ<>u32bit) then
|
|
begin
|
|
{ s32bit will be used for when the other is also s32bit }
|
|
if (porddef(ld)^.typ=s32bit) and (rt<>ordconstn) then
|
|
p^.right:=gentypeconvnode(p^.right,s32bitdef)
|
|
else
|
|
p^.right:=gentypeconvnode(p^.right,u32bitdef);
|
|
firstpass(p^.right);
|
|
end;
|
|
calcregisters(p,1,0,0);
|
|
{ for unsigned mul we need an extra register }
|
|
{ p^.registers32:=p^.left^.registers32+p^.right^.registers32; }
|
|
if p^.treetype=muln then
|
|
inc(p^.registers32);
|
|
convdone:=true;
|
|
end;
|
|
end
|
|
else
|
|
|
|
{ left side a setdef, must be before string processing,
|
|
else array constructor can be seen as array of char (PFV) }
|
|
if (ld^.deftype=setdef) {or is_array_constructor(ld)} then
|
|
begin
|
|
{ trying to add a set element? }
|
|
if (p^.treetype=addn) and (rd^.deftype<>setdef) then
|
|
begin
|
|
if (rt=setelementn) then
|
|
begin
|
|
if not(is_equal(psetdef(ld)^.elementtype.def,rd)) then
|
|
CGMessage(type_e_set_element_are_not_comp);
|
|
end
|
|
else
|
|
CGMessage(type_e_mismatch)
|
|
end
|
|
else
|
|
begin
|
|
if not(p^.treetype in [addn,subn,symdifn,muln,equaln,unequaln
|
|
{$IfNDef NoSetInclusion}
|
|
,lten,gten
|
|
{$EndIf NoSetInclusion}
|
|
]) then
|
|
CGMessage(type_e_set_operation_unknown);
|
|
{ right def must be a also be set }
|
|
if (rd^.deftype<>setdef) or not(is_equal(rd,ld)) then
|
|
CGMessage(type_e_set_element_are_not_comp);
|
|
end;
|
|
|
|
{ ranges require normsets }
|
|
if (psetdef(ld)^.settype=smallset) and
|
|
(rt=setelementn) and
|
|
assigned(p^.right^.right) then
|
|
begin
|
|
{ generate a temporary normset def }
|
|
tempdef:=new(psetdef,init(psetdef(ld)^.elementtype.def,255));
|
|
p^.left:=gentypeconvnode(p^.left,tempdef);
|
|
firstpass(p^.left);
|
|
dispose(tempdef,done);
|
|
ld:=p^.left^.resulttype;
|
|
end;
|
|
|
|
{ if the destination is not a smallset then insert a typeconv
|
|
which loads a smallset into a normal set }
|
|
if (psetdef(ld)^.settype<>smallset) and
|
|
(psetdef(rd)^.settype=smallset) then
|
|
begin
|
|
if (p^.right^.treetype=setconstn) then
|
|
begin
|
|
t:=gensetconstnode(p^.right^.value_set,psetdef(p^.left^.resulttype));
|
|
t^.left:=p^.right^.left;
|
|
putnode(p^.right);
|
|
p^.right:=t;
|
|
end
|
|
else
|
|
p^.right:=gentypeconvnode(p^.right,psetdef(p^.left^.resulttype));
|
|
firstpass(p^.right);
|
|
end;
|
|
|
|
{ do constant evaluation }
|
|
if (p^.right^.treetype=setconstn) and
|
|
not assigned(p^.right^.left) and
|
|
(p^.left^.treetype=setconstn) and
|
|
not assigned(p^.left^.left) then
|
|
begin
|
|
new(resultset);
|
|
case p^.treetype of
|
|
addn : begin
|
|
for i:=0 to 31 do
|
|
resultset^[i]:=
|
|
p^.right^.value_set^[i] or p^.left^.value_set^[i];
|
|
t:=gensetconstnode(resultset,psetdef(ld));
|
|
end;
|
|
muln : begin
|
|
for i:=0 to 31 do
|
|
resultset^[i]:=
|
|
p^.right^.value_set^[i] and p^.left^.value_set^[i];
|
|
t:=gensetconstnode(resultset,psetdef(ld));
|
|
end;
|
|
subn : begin
|
|
for i:=0 to 31 do
|
|
resultset^[i]:=
|
|
p^.left^.value_set^[i] and not(p^.right^.value_set^[i]);
|
|
t:=gensetconstnode(resultset,psetdef(ld));
|
|
end;
|
|
symdifn : begin
|
|
for i:=0 to 31 do
|
|
resultset^[i]:=
|
|
p^.left^.value_set^[i] xor p^.right^.value_set^[i];
|
|
t:=gensetconstnode(resultset,psetdef(ld));
|
|
end;
|
|
unequaln : begin
|
|
b:=true;
|
|
for i:=0 to 31 do
|
|
if p^.right^.value_set^[i]=p^.left^.value_set^[i] then
|
|
begin
|
|
b:=false;
|
|
break;
|
|
end;
|
|
t:=genordinalconstnode(ord(b),booldef);
|
|
end;
|
|
equaln : begin
|
|
b:=true;
|
|
for i:=0 to 31 do
|
|
if p^.right^.value_set^[i]<>p^.left^.value_set^[i] then
|
|
begin
|
|
b:=false;
|
|
break;
|
|
end;
|
|
t:=genordinalconstnode(ord(b),booldef);
|
|
end;
|
|
{$IfNDef NoSetInclusion}
|
|
lten : Begin
|
|
b := true;
|
|
For i := 0 to 31 Do
|
|
If (p^.right^.value_set^[i] And p^.left^.value_set^[i]) <>
|
|
p^.left^.value_set^[i] Then
|
|
Begin
|
|
b := false;
|
|
Break
|
|
End;
|
|
t := genordinalconstnode(ord(b),booldef);
|
|
End;
|
|
gten : Begin
|
|
b := true;
|
|
For i := 0 to 31 Do
|
|
If (p^.left^.value_set^[i] And p^.right^.value_set^[i]) <>
|
|
p^.right^.value_set^[i] Then
|
|
Begin
|
|
b := false;
|
|
Break
|
|
End;
|
|
t := genordinalconstnode(ord(b),booldef);
|
|
End;
|
|
{$EndIf NoSetInclusion}
|
|
end;
|
|
dispose(resultset);
|
|
disposetree(p);
|
|
p:=t;
|
|
firstpass(p);
|
|
exit;
|
|
end
|
|
else
|
|
if psetdef(ld)^.settype=smallset then
|
|
begin
|
|
calcregisters(p,1,0,0);
|
|
{ are we adding set elements ? }
|
|
if p^.right^.treetype=setelementn then
|
|
begin
|
|
{ we need at least two registers PM }
|
|
if p^.registers32<2 then
|
|
p^.registers32:=2;
|
|
end;
|
|
p^.location.loc:=LOC_REGISTER;
|
|
end
|
|
else
|
|
begin
|
|
calcregisters(p,0,0,0);
|
|
{ here we call SET... }
|
|
procinfo^.flags:=procinfo^.flags or pi_do_call;
|
|
p^.location.loc:=LOC_MEM;
|
|
end;
|
|
convdone:=true;
|
|
end
|
|
else
|
|
|
|
{ is one of the operands a string?,
|
|
chararrays are also handled as strings (after conversion) }
|
|
if (rd^.deftype=stringdef) or (ld^.deftype=stringdef) or
|
|
((is_chararray(rd) or is_char(rd)) and
|
|
(is_chararray(ld) or is_char(ld))) then
|
|
begin
|
|
if is_widestring(rd) or is_widestring(ld) then
|
|
begin
|
|
if not(is_widestring(rd)) then
|
|
p^.right:=gentypeconvnode(p^.right,cwidestringdef);
|
|
if not(is_widestring(ld)) then
|
|
p^.left:=gentypeconvnode(p^.left,cwidestringdef);
|
|
p^.resulttype:=cwidestringdef;
|
|
{ this is only for add, the comparisaion is handled later }
|
|
p^.location.loc:=LOC_REGISTER;
|
|
end
|
|
else if is_ansistring(rd) or is_ansistring(ld) then
|
|
begin
|
|
if not(is_ansistring(rd)) then
|
|
p^.right:=gentypeconvnode(p^.right,cansistringdef);
|
|
if not(is_ansistring(ld)) then
|
|
p^.left:=gentypeconvnode(p^.left,cansistringdef);
|
|
p^.resulttype:=cansistringdef;
|
|
{ this is only for add, the comparisaion is handled later }
|
|
p^.location.loc:=LOC_REGISTER;
|
|
end
|
|
else if is_longstring(rd) or is_longstring(ld) then
|
|
begin
|
|
if not(is_longstring(rd)) then
|
|
p^.right:=gentypeconvnode(p^.right,clongstringdef);
|
|
if not(is_longstring(ld)) then
|
|
p^.left:=gentypeconvnode(p^.left,clongstringdef);
|
|
p^.resulttype:=clongstringdef;
|
|
{ this is only for add, the comparisaion is handled later }
|
|
p^.location.loc:=LOC_MEM;
|
|
end
|
|
else
|
|
begin
|
|
if not(is_shortstring(rd)) then
|
|
p^.right:=gentypeconvnode(p^.right,cshortstringdef);
|
|
if not(is_shortstring(ld)) then
|
|
p^.left:=gentypeconvnode(p^.left,cshortstringdef);
|
|
p^.resulttype:=cshortstringdef;
|
|
{ this is only for add, the comparisaion is handled later }
|
|
p^.location.loc:=LOC_MEM;
|
|
end;
|
|
{ only if there is a type cast we need to do again }
|
|
{ the first pass }
|
|
if p^.left^.treetype=typeconvn then
|
|
firstpass(p^.left);
|
|
if p^.right^.treetype=typeconvn then
|
|
firstpass(p^.right);
|
|
{ here we call STRCONCAT or STRCMP or STRCOPY }
|
|
procinfo^.flags:=procinfo^.flags or pi_do_call;
|
|
if p^.location.loc=LOC_MEM then
|
|
calcregisters(p,0,0,0)
|
|
else
|
|
calcregisters(p,1,0,0);
|
|
convdone:=true;
|
|
end
|
|
else
|
|
|
|
{ is one a real float ? }
|
|
if (rd^.deftype=floatdef) or (ld^.deftype=floatdef) then
|
|
begin
|
|
{ if one is a fixed, then convert to f32bit }
|
|
if ((rd^.deftype=floatdef) and (pfloatdef(rd)^.typ=f32bit)) or
|
|
((ld^.deftype=floatdef) and (pfloatdef(ld)^.typ=f32bit)) then
|
|
begin
|
|
if not is_integer(rd) or (p^.treetype<>muln) then
|
|
p^.right:=gentypeconvnode(p^.right,s32fixeddef);
|
|
if not is_integer(ld) or (p^.treetype<>muln) then
|
|
p^.left:=gentypeconvnode(p^.left,s32fixeddef);
|
|
firstpass(p^.left);
|
|
firstpass(p^.right);
|
|
calcregisters(p,1,0,0);
|
|
p^.location.loc:=LOC_REGISTER;
|
|
end
|
|
else
|
|
{ convert both to bestreal }
|
|
begin
|
|
p^.right:=gentypeconvnode(p^.right,bestrealdef^);
|
|
p^.left:=gentypeconvnode(p^.left,bestrealdef^);
|
|
firstpass(p^.left);
|
|
firstpass(p^.right);
|
|
calcregisters(p,1,1,0);
|
|
p^.location.loc:=LOC_FPU;
|
|
end;
|
|
convdone:=true;
|
|
end
|
|
else
|
|
|
|
{ pointer comperation and subtraction }
|
|
if (rd^.deftype=pointerdef) and (ld^.deftype=pointerdef) then
|
|
begin
|
|
p^.location.loc:=LOC_REGISTER;
|
|
{ p^.right:=gentypeconvnode(p^.right,ld); }
|
|
{ firstpass(p^.right); }
|
|
calcregisters(p,1,0,0);
|
|
case p^.treetype of
|
|
equaln,unequaln :
|
|
begin
|
|
if is_equal(p^.right^.resulttype,voidpointerdef) then
|
|
begin
|
|
p^.right:=gentypeconvnode(p^.right,ld);
|
|
firstpass(p^.right);
|
|
end
|
|
else if is_equal(p^.left^.resulttype,voidpointerdef) then
|
|
begin
|
|
p^.left:=gentypeconvnode(p^.left,rd);
|
|
firstpass(p^.left);
|
|
end
|
|
else if not(is_equal(ld,rd)) then
|
|
CGMessage(type_e_mismatch);
|
|
end;
|
|
ltn,lten,gtn,gten:
|
|
begin
|
|
if is_equal(p^.right^.resulttype,voidpointerdef) then
|
|
begin
|
|
p^.right:=gentypeconvnode(p^.right,ld);
|
|
firstpass(p^.right);
|
|
end
|
|
else if is_equal(p^.left^.resulttype,voidpointerdef) then
|
|
begin
|
|
p^.left:=gentypeconvnode(p^.left,rd);
|
|
firstpass(p^.left);
|
|
end
|
|
else if not(is_equal(ld,rd)) then
|
|
CGMessage(type_e_mismatch);
|
|
if not(cs_extsyntax in aktmoduleswitches) then
|
|
CGMessage(type_e_mismatch);
|
|
end;
|
|
subn:
|
|
begin
|
|
if not(is_equal(ld,rd)) then
|
|
CGMessage(type_e_mismatch);
|
|
if not(cs_extsyntax in aktmoduleswitches) then
|
|
CGMessage(type_e_mismatch);
|
|
p^.resulttype:=s32bitdef;
|
|
exit;
|
|
end;
|
|
else CGMessage(type_e_mismatch);
|
|
end;
|
|
convdone:=true;
|
|
end
|
|
else
|
|
|
|
if (rd^.deftype=objectdef) and (ld^.deftype=objectdef) and
|
|
pobjectdef(rd)^.is_class and pobjectdef(ld)^.is_class then
|
|
begin
|
|
p^.location.loc:=LOC_REGISTER;
|
|
if pobjectdef(rd)^.is_related(pobjectdef(ld)) then
|
|
p^.right:=gentypeconvnode(p^.right,ld)
|
|
else
|
|
p^.left:=gentypeconvnode(p^.left,rd);
|
|
firstpass(p^.right);
|
|
firstpass(p^.left);
|
|
calcregisters(p,1,0,0);
|
|
case p^.treetype of
|
|
equaln,unequaln : ;
|
|
else CGMessage(type_e_mismatch);
|
|
end;
|
|
convdone:=true;
|
|
end
|
|
else
|
|
|
|
if (rd^.deftype=classrefdef) and (ld^.deftype=classrefdef) then
|
|
begin
|
|
p^.location.loc:=LOC_REGISTER;
|
|
if pobjectdef(pclassrefdef(rd)^.pointertype.def)^.is_related(pobjectdef(
|
|
pclassrefdef(ld)^.pointertype.def)) then
|
|
p^.right:=gentypeconvnode(p^.right,ld)
|
|
else
|
|
p^.left:=gentypeconvnode(p^.left,rd);
|
|
firstpass(p^.right);
|
|
firstpass(p^.left);
|
|
calcregisters(p,1,0,0);
|
|
case p^.treetype of
|
|
equaln,unequaln : ;
|
|
else CGMessage(type_e_mismatch);
|
|
end;
|
|
convdone:=true;
|
|
end
|
|
else
|
|
|
|
{ allows comperasion with nil pointer }
|
|
if (rd^.deftype=objectdef) and
|
|
pobjectdef(rd)^.is_class then
|
|
begin
|
|
p^.location.loc:=LOC_REGISTER;
|
|
p^.left:=gentypeconvnode(p^.left,rd);
|
|
firstpass(p^.left);
|
|
calcregisters(p,1,0,0);
|
|
case p^.treetype of
|
|
equaln,unequaln : ;
|
|
else CGMessage(type_e_mismatch);
|
|
end;
|
|
convdone:=true;
|
|
end
|
|
else
|
|
|
|
if (ld^.deftype=objectdef) and
|
|
pobjectdef(ld)^.is_class then
|
|
begin
|
|
p^.location.loc:=LOC_REGISTER;
|
|
p^.right:=gentypeconvnode(p^.right,ld);
|
|
firstpass(p^.right);
|
|
calcregisters(p,1,0,0);
|
|
case p^.treetype of
|
|
equaln,unequaln : ;
|
|
else CGMessage(type_e_mismatch);
|
|
end;
|
|
convdone:=true;
|
|
end
|
|
else
|
|
|
|
if (rd^.deftype=classrefdef) then
|
|
begin
|
|
p^.left:=gentypeconvnode(p^.left,rd);
|
|
firstpass(p^.left);
|
|
calcregisters(p,1,0,0);
|
|
case p^.treetype of
|
|
equaln,unequaln : ;
|
|
else CGMessage(type_e_mismatch);
|
|
end;
|
|
convdone:=true;
|
|
end
|
|
else
|
|
|
|
if (ld^.deftype=classrefdef) then
|
|
begin
|
|
p^.right:=gentypeconvnode(p^.right,ld);
|
|
firstpass(p^.right);
|
|
calcregisters(p,1,0,0);
|
|
case p^.treetype of
|
|
equaln,unequaln : ;
|
|
else
|
|
CGMessage(type_e_mismatch);
|
|
end;
|
|
convdone:=true;
|
|
end
|
|
else
|
|
|
|
{ support procvar=nil,procvar<>nil }
|
|
if ((ld^.deftype=procvardef) and (rt=niln)) or
|
|
((rd^.deftype=procvardef) and (lt=niln)) then
|
|
begin
|
|
calcregisters(p,1,0,0);
|
|
p^.location.loc:=LOC_REGISTER;
|
|
case p^.treetype of
|
|
equaln,unequaln : ;
|
|
else
|
|
CGMessage(type_e_mismatch);
|
|
end;
|
|
convdone:=true;
|
|
end
|
|
else
|
|
|
|
if (rd^.deftype=pointerdef) or
|
|
is_zero_based_array(rd) then
|
|
begin
|
|
if is_zero_based_array(rd) then
|
|
begin
|
|
p^.resulttype:=new(ppointerdef,init(parraydef(rd)^.elementtype));
|
|
p^.right:=gentypeconvnode(p^.right,p^.resulttype);
|
|
firstpass(p^.right);
|
|
end;
|
|
p^.location.loc:=LOC_REGISTER;
|
|
p^.left:=gentypeconvnode(p^.left,s32bitdef);
|
|
firstpass(p^.left);
|
|
calcregisters(p,1,0,0);
|
|
if p^.treetype=addn then
|
|
begin
|
|
if not(cs_extsyntax in aktmoduleswitches) or
|
|
(not(is_pchar(ld)) and not(m_add_pointer in aktmodeswitches)) then
|
|
CGMessage(type_e_mismatch);
|
|
{ Dirty hack, to support multiple firstpasses (PFV) }
|
|
if (p^.resulttype=nil) and
|
|
(rd^.deftype=pointerdef) and
|
|
(ppointerdef(rd)^.pointertype.def^.size>1) then
|
|
begin
|
|
p^.left:=gennode(muln,p^.left,genordinalconstnode(ppointerdef(rd)^.pointertype.def^.size,s32bitdef));
|
|
firstpass(p^.left);
|
|
end;
|
|
end
|
|
else
|
|
CGMessage(type_e_mismatch);
|
|
convdone:=true;
|
|
end
|
|
else
|
|
|
|
if (ld^.deftype=pointerdef) or
|
|
is_zero_based_array(ld) then
|
|
begin
|
|
if is_zero_based_array(ld) then
|
|
begin
|
|
p^.resulttype:=new(ppointerdef,init(parraydef(ld)^.elementtype));
|
|
p^.left:=gentypeconvnode(p^.left,p^.resulttype);
|
|
firstpass(p^.left);
|
|
end;
|
|
p^.location.loc:=LOC_REGISTER;
|
|
p^.right:=gentypeconvnode(p^.right,s32bitdef);
|
|
firstpass(p^.right);
|
|
calcregisters(p,1,0,0);
|
|
case p^.treetype of
|
|
addn,subn : begin
|
|
if not(cs_extsyntax in aktmoduleswitches) or
|
|
(not(is_pchar(ld)) and not(m_add_pointer in aktmodeswitches)) then
|
|
CGMessage(type_e_mismatch);
|
|
{ Dirty hack, to support multiple firstpasses (PFV) }
|
|
if (p^.resulttype=nil) and
|
|
(ld^.deftype=pointerdef) and
|
|
(ppointerdef(ld)^.pointertype.def^.size>1) then
|
|
begin
|
|
p^.right:=gennode(muln,p^.right,
|
|
genordinalconstnode(ppointerdef(ld)^.pointertype.def^.size,s32bitdef));
|
|
firstpass(p^.right);
|
|
end;
|
|
end;
|
|
else
|
|
CGMessage(type_e_mismatch);
|
|
end;
|
|
convdone:=true;
|
|
end
|
|
else
|
|
|
|
if (rd^.deftype=procvardef) and (ld^.deftype=procvardef) and is_equal(rd,ld) then
|
|
begin
|
|
calcregisters(p,1,0,0);
|
|
p^.location.loc:=LOC_REGISTER;
|
|
case p^.treetype of
|
|
equaln,unequaln : ;
|
|
else
|
|
CGMessage(type_e_mismatch);
|
|
end;
|
|
convdone:=true;
|
|
end
|
|
else
|
|
|
|
{$ifdef SUPPORT_MMX}
|
|
if (cs_mmx in aktlocalswitches) and is_mmx_able_array(ld) and
|
|
is_mmx_able_array(rd) and is_equal(ld,rd) then
|
|
begin
|
|
firstpass(p^.right);
|
|
firstpass(p^.left);
|
|
case p^.treetype of
|
|
addn,subn,xorn,orn,andn:
|
|
;
|
|
{ mul is a little bit restricted }
|
|
muln:
|
|
if not(mmx_type(p^.left^.resulttype) in
|
|
[mmxu16bit,mmxs16bit,mmxfixed16]) then
|
|
CGMessage(type_e_mismatch);
|
|
else
|
|
CGMessage(type_e_mismatch);
|
|
end;
|
|
p^.location.loc:=LOC_MMXREGISTER;
|
|
calcregisters(p,0,0,1);
|
|
convdone:=true;
|
|
end
|
|
else
|
|
{$endif SUPPORT_MMX}
|
|
|
|
if (ld^.deftype=enumdef) and (rd^.deftype=enumdef) and (is_equal(ld,rd)) then
|
|
begin
|
|
calcregisters(p,1,0,0);
|
|
case p^.treetype of
|
|
equaln,unequaln,
|
|
ltn,lten,gtn,gten : ;
|
|
else CGMessage(type_e_mismatch);
|
|
end;
|
|
convdone:=true;
|
|
end;
|
|
|
|
{ the general solution is to convert to 32 bit int }
|
|
if not convdone then
|
|
begin
|
|
{ but an int/int gives real/real! }
|
|
if p^.treetype=slashn then
|
|
begin
|
|
CGMessage(type_h_use_div_for_int);
|
|
p^.right:=gentypeconvnode(p^.right,bestrealdef^);
|
|
p^.left:=gentypeconvnode(p^.left,bestrealdef^);
|
|
firstpass(p^.left);
|
|
firstpass(p^.right);
|
|
{ maybe we need an integer register to save }
|
|
{ a reference }
|
|
if ((p^.left^.location.loc<>LOC_FPU) or
|
|
(p^.right^.location.loc<>LOC_FPU)) and
|
|
(p^.left^.registers32=p^.right^.registers32) then
|
|
calcregisters(p,1,1,0)
|
|
else
|
|
calcregisters(p,0,1,0);
|
|
p^.location.loc:=LOC_FPU;
|
|
end
|
|
else
|
|
begin
|
|
p^.right:=gentypeconvnode(p^.right,s32bitdef);
|
|
p^.left:=gentypeconvnode(p^.left,s32bitdef);
|
|
firstpass(p^.left);
|
|
firstpass(p^.right);
|
|
calcregisters(p,1,0,0);
|
|
p^.location.loc:=LOC_REGISTER;
|
|
end;
|
|
end;
|
|
|
|
if codegenerror then
|
|
exit;
|
|
|
|
{ determines result type for comparions }
|
|
{ here the is a problem with multiple passes }
|
|
{ example length(s)+1 gets internal 'longint' type first }
|
|
{ if it is a arg it is converted to 'LONGINT' }
|
|
{ but a second first pass will reset this to 'longint' }
|
|
case p^.treetype of
|
|
ltn,lten,gtn,gten,equaln,unequaln:
|
|
begin
|
|
if (not assigned(p^.resulttype)) or
|
|
(p^.resulttype^.deftype=stringdef) then
|
|
p^.resulttype:=booldef;
|
|
if is_64bitint(p^.left^.resulttype) then
|
|
p^.location.loc:=LOC_JUMP
|
|
else
|
|
p^.location.loc:=LOC_FLAGS;
|
|
end;
|
|
xorn:
|
|
begin
|
|
if not assigned(p^.resulttype) then
|
|
p^.resulttype:=p^.left^.resulttype;
|
|
p^.location.loc:=LOC_REGISTER;
|
|
end;
|
|
addn:
|
|
begin
|
|
if not assigned(p^.resulttype) then
|
|
begin
|
|
{ for strings, return is always a 255 char string }
|
|
if is_shortstring(p^.left^.resulttype) then
|
|
p^.resulttype:=cshortstringdef
|
|
else
|
|
p^.resulttype:=p^.left^.resulttype;
|
|
end;
|
|
end;
|
|
else
|
|
p^.resulttype:=p^.left^.resulttype;
|
|
end;
|
|
end;
|
|
|
|
|
|
end.
|
|
{
|
|
$Log$
|
|
Revision 1.59 1999-12-01 12:42:33 peter
|
|
* fixed bug 698
|
|
* removed some notes about unused vars
|
|
|
|
Revision 1.58 1999/11/30 10:40:56 peter
|
|
+ ttype, tsymlist
|
|
|
|
Revision 1.57 1999/11/26 13:51:29 pierre
|
|
* fix for overloading of shr shl mod and div
|
|
|
|
Revision 1.56 1999/11/18 15:34:48 pierre
|
|
* Notes/Hints for local syms changed to
|
|
Set_varstate function
|
|
|
|
Revision 1.55 1999/11/17 17:05:06 pierre
|
|
* Notes/hints changes
|
|
|
|
Revision 1.54 1999/11/16 23:45:28 pierre
|
|
* global var token was changed by overload code (form bug 707)
|
|
|
|
Revision 1.53 1999/11/15 21:53:42 peter
|
|
* fixed constant eval for bool xor/or/and bool
|
|
|
|
Revision 1.52 1999/11/15 17:53:00 pierre
|
|
+ one field added for ttoken record for operator
|
|
linking the id to the corresponding operator token that
|
|
can now now all be overloaded
|
|
* overloaded operators are resetted to nil in InitSymtable
|
|
(bug when trying to compile a uint that overloads operators twice)
|
|
|
|
Revision 1.51 1999/11/06 14:34:29 peter
|
|
* truncated log to 20 revs
|
|
|
|
Revision 1.50 1999/09/27 23:45:00 peter
|
|
* procinfo is now a pointer
|
|
* support for result setting in sub procedure
|
|
|
|
Revision 1.49 1999/09/16 13:39:14 peter
|
|
* arrayconstructor 2 set conversion is now called always in the
|
|
beginning of firstadd
|
|
|
|
Revision 1.48 1999/09/15 20:35:45 florian
|
|
* small fix to operator overloading when in MMX mode
|
|
+ the compiler uses now fldz and fld1 if possible
|
|
+ some fixes to floating point registers
|
|
+ some math. functions (arctan, ln, sin, cos, sqrt, sqr, pi) are now inlined
|
|
* .... ???
|
|
|
|
Revision 1.47 1999/09/13 16:28:05 peter
|
|
* typo in previous commit open_array -> chararray :(
|
|
|
|
Revision 1.46 1999/09/10 15:40:46 peter
|
|
* fixed array check for operators, becuase array can also be a set
|
|
|
|
Revision 1.45 1999/09/08 16:05:29 peter
|
|
* pointer add/sub is now as expected and the same results as inc/dec
|
|
|
|
Revision 1.44 1999/09/07 07:52:19 peter
|
|
* > < >= <= support for boolean
|
|
* boolean constants are now calculated like integer constants
|
|
|
|
Revision 1.43 1999/08/23 23:44:05 pierre
|
|
* setelementn registers32 corrected
|
|
|
|
Revision 1.42 1999/08/07 11:29:27 peter
|
|
* better fix for muln register allocation
|
|
|
|
Revision 1.41 1999/08/05 21:58:57 peter
|
|
* fixed register count ord*ord
|
|
|
|
Revision 1.40 1999/08/04 13:03:13 jonas
|
|
* all tokens now start with an underscore
|
|
* PowerPC compiles!!
|
|
|
|
Revision 1.39 1999/08/04 00:23:33 florian
|
|
* renamed i386asm and i386base to cpuasm and cpubase
|
|
|
|
Revision 1.38 1999/08/03 22:03:24 peter
|
|
* moved bitmask constants to sets
|
|
* some other type/const renamings
|
|
|
|
Revision 1.37 1999/07/16 10:04:37 peter
|
|
* merged
|
|
|
|
Revision 1.36 1999/06/17 15:32:48 pierre
|
|
* merged from 0-99-12 branch
|
|
|
|
Revision 1.34.2.3 1999/07/16 09:54:58 peter
|
|
* @procvar support in tp7 mode works again
|
|
|
|
Revision 1.34.2.2 1999/06/17 15:25:07 pierre
|
|
* for arrays of char operators can not be overloaded
|
|
|
|
Revision 1.35 1999/06/17 13:19:57 pierre
|
|
* merged from 0_99_12 branch
|
|
|
|
Revision 1.34.2.1 1999/06/17 12:35:23 pierre
|
|
* allow array binary operator overloading if not with orddef
|
|
|
|
Revision 1.34 1999/06/02 10:11:52 florian
|
|
* make cycle fixed i.e. compilation with 0.99.10
|
|
* some fixes for qword
|
|
* start of register calling conventions
|
|
|
|
}
|