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1674 lines
66 KiB
ObjectPascal
1674 lines
66 KiB
ObjectPascal
{
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$Id$
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Copyright (c) 1998-2002 by Florian Klaempfl
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Type checking and register allocation for add 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 nadd;
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{$i fpcdefs.inc}
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interface
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uses
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node;
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type
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taddnode = class(tbinopnode)
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constructor create(tt : tnodetype;l,r : tnode);override;
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function pass_1 : tnode;override;
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function det_resulttype:tnode;override;
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protected
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{ override the following if you want to implement }
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{ parts explicitely in the code generator (JM) }
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function first_addstring: tnode; virtual;
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function first_addset: tnode; virtual;
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{ only implements "muln" nodes, the rest always has to be done in }
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{ the code generator for performance reasons (JM) }
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function first_add64bitint: tnode; virtual;
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end;
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taddnodeclass = class of taddnode;
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var
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{ caddnode is used to create nodes of the add type }
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{ the virtual constructor allows to assign }
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{ another class type to caddnode => processor }
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{ specific node types can be created }
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caddnode : taddnodeclass;
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implementation
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uses
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globtype,systems,
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cutils,verbose,globals,widestr,
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symconst,symtype,symdef,symsym,symtable,types,
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cgbase,
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htypechk,pass_1,
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nmat,ncnv,ncon,nset,nopt,ncal,ninl,
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cpubase;
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{*****************************************************************************
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TADDNODE
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*****************************************************************************}
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{$ifdef fpc}
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{$maxfpuregisters 0}
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{$endif fpc}
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constructor taddnode.create(tt : tnodetype;l,r : tnode);
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begin
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inherited create(tt,l,r);
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end;
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function taddnode.det_resulttype:tnode;
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var
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hp,t : tnode;
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lt,rt : tnodetype;
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rd,ld : tdef;
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htype : ttype;
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ot : tnodetype;
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concatstrings : boolean;
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resultset : pconstset;
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i : longint;
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b : boolean;
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s1,s2 : pchar;
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ws1,ws2 : pcompilerwidestring;
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l1,l2 : longint;
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rv,lv : tconstexprint;
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rvd,lvd : bestreal;
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begin
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result:=nil;
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{ first do the two subtrees }
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resulttypepass(left);
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resulttypepass(right);
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{ both left and right need to be valid }
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set_varstate(left,true);
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set_varstate(right,true);
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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(left.resulttype.def) then
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begin
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arrayconstructor_to_set(left);
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resulttypepass(left);
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end;
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if is_array_constructor(right.resulttype.def) then
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begin
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arrayconstructor_to_set(right);
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resulttypepass(right);
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end;
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{ allow operator overloading }
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hp:=self;
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if isbinaryoverloaded(hp) then
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begin
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result:=hp;
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exit;
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end;
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{ Kylix allows enum+ordconstn in an enum declaration (blocktype
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is bt_type), we need to do the conversion here before the
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constant folding }
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if (m_delphi in aktmodeswitches) and
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(blocktype=bt_type) then
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begin
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if (left.resulttype.def.deftype=enumdef) and
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(right.resulttype.def.deftype=orddef) then
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begin
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{ insert explicit typecast to s32bit }
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left:=ctypeconvnode.create(left,s32bittype);
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left.toggleflag(nf_explizit);
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resulttypepass(left);
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end
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else
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if (left.resulttype.def.deftype=orddef) and
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(right.resulttype.def.deftype=enumdef) then
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begin
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{ insert explicit typecast to s32bit }
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right:=ctypeconvnode.create(right,s32bittype);
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include(right.flags,nf_explizit);
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resulttypepass(right);
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end;
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end;
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{ is one a real float, then both need to be floats, this
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need to be done before the constant folding so constant
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operation on a float and int are also handled }
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if (right.resulttype.def.deftype=floatdef) or (left.resulttype.def.deftype=floatdef) then
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begin
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inserttypeconv(right,pbestrealtype^);
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inserttypeconv(left,pbestrealtype^);
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end;
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{ if one operand is a widechar or a widestring, both operands }
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{ are converted to widestring. This must be done before constant }
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{ folding to allow char+widechar etc. }
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if is_widestring(right.resulttype.def) or
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is_widestring(left.resulttype.def) or
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is_widechar(right.resulttype.def) or
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is_widechar(left.resulttype.def) then
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begin
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inserttypeconv(right,cwidestringtype);
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inserttypeconv(left,cwidestringtype);
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end;
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{ load easier access variables }
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rd:=right.resulttype.def;
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ld:=left.resulttype.def;
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rt:=right.nodetype;
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lt:=left.nodetype;
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{ both are int constants }
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if (((is_constintnode(left) and is_constintnode(right)) or
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(is_constboolnode(left) and is_constboolnode(right) and
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(nodetype in [ltn,lten,gtn,gten,equaln,unequaln,andn,xorn,orn])))) or
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{ support pointer arithmetics on constants (JM) }
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((lt = pointerconstn) and is_constintnode(right) and
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(nodetype in [addn,subn])) or
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((lt = pointerconstn) and (rt = pointerconstn) and
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(nodetype in [ltn,lten,gtn,gten,equaln,unequaln,subn])) then
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begin
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{ when comparing/substracting pointers, make sure they are }
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{ of the same type (JM) }
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if (lt = pointerconstn) and (rt = pointerconstn) then
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begin
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if not(cs_extsyntax in aktmoduleswitches) and
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not(nodetype in [equaln,unequaln]) then
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CGMessage(type_e_mismatch)
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else
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if (nodetype <> subn) and
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is_voidpointer(rd) then
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inserttypeconv(right,left.resulttype)
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else if (nodetype <> subn) and
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is_voidpointer(ld) then
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inserttypeconv(left,right.resulttype)
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else if not(is_equal(ld,rd)) then
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CGMessage(type_e_mismatch);
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end
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else if (lt=ordconstn) and (rt=ordconstn) then
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begin
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{ make left const type the biggest (u32bit is bigger than
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s32bit for or,and,xor) }
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if (rd.size>ld.size) or
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((torddef(rd).typ=u32bit) and
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(torddef(ld).typ=s32bit) and
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(nodetype in [orn,andn,xorn])) then
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inserttypeconv(left,right.resulttype);
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end;
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{ load values }
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if (lt = ordconstn) then
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lv:=tordconstnode(left).value
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else
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lv:=tpointerconstnode(left).value;
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if (rt = ordconstn) then
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rv:=tordconstnode(right).value
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else
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rv:=tpointerconstnode(right).value;
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if (lt = pointerconstn) and
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(rt <> pointerconstn) then
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rv := rv * tpointerdef(left.resulttype.def).pointertype.def.size;
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if (rt = pointerconstn) and
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(lt <> pointerconstn) then
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lv := lv * tpointerdef(right.resulttype.def).pointertype.def.size;
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case nodetype of
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addn :
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if (lt <> pointerconstn) then
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t := genintconstnode(lv+rv)
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else
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t := cpointerconstnode.create(lv+rv,left.resulttype);
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subn :
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if (lt <> pointerconstn) or (rt = pointerconstn) then
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t := genintconstnode(lv-rv)
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else
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t := cpointerconstnode.create(lv-rv,left.resulttype);
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muln :
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t:=genintconstnode(lv*rv);
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xorn :
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t:=cordconstnode.create(lv xor rv,left.resulttype);
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orn :
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t:=cordconstnode.create(lv or rv,left.resulttype);
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andn :
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t:=cordconstnode.create(lv and rv,left.resulttype);
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ltn :
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t:=cordconstnode.create(ord(lv<rv),booltype);
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lten :
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t:=cordconstnode.create(ord(lv<=rv),booltype);
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gtn :
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t:=cordconstnode.create(ord(lv>rv),booltype);
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gten :
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t:=cordconstnode.create(ord(lv>=rv),booltype);
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equaln :
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t:=cordconstnode.create(ord(lv=rv),booltype);
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unequaln :
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t:=cordconstnode.create(ord(lv<>rv),booltype);
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slashn :
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begin
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{ int/int becomes a real }
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rvd:=rv;
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lvd:=lv;
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if int(rvd)=0 then
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begin
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Message(parser_e_invalid_float_operation);
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t:=crealconstnode.create(0,pbestrealtype^);
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end
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else
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t:=crealconstnode.create(int(lvd)/int(rvd),pbestrealtype^);
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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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result:=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:=trealconstnode(left).value_real;
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rvd:=trealconstnode(right).value_real;
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case nodetype of
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addn :
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t:=crealconstnode.create(lvd+rvd,pbestrealtype^);
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subn :
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t:=crealconstnode.create(lvd-rvd,pbestrealtype^);
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muln :
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t:=crealconstnode.create(lvd*rvd,pbestrealtype^);
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starstarn,
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caretn :
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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:=crealconstnode.create(0,pbestrealtype^);
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end
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else if lvd=0 then
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t:=crealconstnode.create(1.0,pbestrealtype^)
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else
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t:=crealconstnode.create(exp(ln(lvd)*rvd),pbestrealtype^);
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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:=crealconstnode.create(0,pbestrealtype^);
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end
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else
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t:=crealconstnode.create(lvd/rvd,pbestrealtype^);
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end;
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ltn :
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t:=cordconstnode.create(ord(lvd<rvd),booltype);
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lten :
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t:=cordconstnode.create(ord(lvd<=rvd),booltype);
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gtn :
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t:=cordconstnode.create(ord(lvd>rvd),booltype);
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gten :
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t:=cordconstnode.create(ord(lvd>=rvd),booltype);
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equaln :
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t:=cordconstnode.create(ord(lvd=rvd),booltype);
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unequaln :
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t:=cordconstnode.create(ord(lvd<>rvd),booltype);
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else
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CGMessage(type_e_mismatch);
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end;
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result:=t;
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exit;
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end;
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{ first, we handle widestrings, so we can check later for }
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{ stringconstn only }
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{ widechars are converted above to widestrings too }
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{ this isn't veryy efficient, but I don't think }
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{ that it does matter that much (FK) }
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if (lt=stringconstn) and (rt=stringconstn) and
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(tstringconstnode(left).st_type=st_widestring) and
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(tstringconstnode(right).st_type=st_widestring) then
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begin
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initwidestring(ws1);
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initwidestring(ws2);
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copywidestring(pcompilerwidestring(tstringconstnode(left).value_str),ws1);
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copywidestring(pcompilerwidestring(tstringconstnode(right).value_str),ws2);
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case nodetype of
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addn :
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begin
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concatwidestrings(ws1,ws2);
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t:=cstringconstnode.createwstr(ws1);
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end;
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ltn :
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t:=cordconstnode.create(byte(comparewidestrings(ws1,ws2)<0),booltype);
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lten :
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t:=cordconstnode.create(byte(comparewidestrings(ws1,ws2)<=0),booltype);
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gtn :
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t:=cordconstnode.create(byte(comparewidestrings(ws1,ws2)>0),booltype);
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gten :
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t:=cordconstnode.create(byte(comparewidestrings(ws1,ws2)>=0),booltype);
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equaln :
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t:=cordconstnode.create(byte(comparewidestrings(ws1,ws2)=0),booltype);
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unequaln :
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t:=cordconstnode.create(byte(comparewidestrings(ws1,ws2)<>0),booltype);
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end;
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donewidestring(ws1);
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donewidestring(ws2);
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result:=t;
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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(tordconstnode(left).value)));
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s2:=strpnew(char(byte(tordconstnode(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:=tstringconstnode(left).getpcharcopy;
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l1:=tstringconstnode(left).len;
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s2:=strpnew(char(byte(tordconstnode(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(tordconstnode(left).value)));
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l1:=1;
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s2:=tstringconstnode(right).getpcharcopy;
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l2:=tstringconstnode(right).len;
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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:=tstringconstnode(left).getpcharcopy;
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l1:=tstringconstnode(left).len;
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s2:=tstringconstnode(right).getpcharcopy;
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l2:=tstringconstnode(right).len;
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concatstrings:=true;
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end;
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if concatstrings then
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begin
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case nodetype of
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addn :
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t:=cstringconstnode.createpchar(concatansistrings(s1,s2,l1,l2),l1+l2);
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ltn :
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t:=cordconstnode.create(byte(compareansistrings(s1,s2,l1,l2)<0),booltype);
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lten :
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t:=cordconstnode.create(byte(compareansistrings(s1,s2,l1,l2)<=0),booltype);
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gtn :
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t:=cordconstnode.create(byte(compareansistrings(s1,s2,l1,l2)>0),booltype);
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gten :
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t:=cordconstnode.create(byte(compareansistrings(s1,s2,l1,l2)>=0),booltype);
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equaln :
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t:=cordconstnode.create(byte(compareansistrings(s1,s2,l1,l2)=0),booltype);
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unequaln :
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t:=cordconstnode.create(byte(compareansistrings(s1,s2,l1,l2)<>0),booltype);
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end;
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ansistringdispose(s1,l1);
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ansistringdispose(s2,l2);
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result:=t;
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exit;
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end;
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|
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{ set constant evaluation }
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if (right.nodetype=setconstn) and
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not assigned(tsetconstnode(right).left) and
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(left.nodetype=setconstn) and
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not assigned(tsetconstnode(left).left) then
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begin
|
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{ check if size adjusting is needed, only for left
|
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to right as the other way is checked in the typeconv }
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if (tsetdef(right.resulttype.def).settype=smallset) and
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(tsetdef(left.resulttype.def).settype<>smallset) then
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tsetdef(right.resulttype.def).changesettype(normset);
|
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{ check base types }
|
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inserttypeconv(left,right.resulttype);
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|
|
if codegenerror then
|
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begin
|
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{ recover by only returning the left part }
|
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result:=left;
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left:=nil;
|
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exit;
|
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end;
|
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new(resultset);
|
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case nodetype of
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addn :
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begin
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for i:=0 to 31 do
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resultset^[i]:=tsetconstnode(right).value_set^[i] or tsetconstnode(left).value_set^[i];
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t:=csetconstnode.create(resultset,left.resulttype);
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end;
|
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muln :
|
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begin
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for i:=0 to 31 do
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resultset^[i]:=tsetconstnode(right).value_set^[i] and tsetconstnode(left).value_set^[i];
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t:=csetconstnode.create(resultset,left.resulttype);
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end;
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subn :
|
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begin
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for i:=0 to 31 do
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resultset^[i]:=tsetconstnode(left).value_set^[i] and not(tsetconstnode(right).value_set^[i]);
|
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t:=csetconstnode.create(resultset,left.resulttype);
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end;
|
|
symdifn :
|
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begin
|
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for i:=0 to 31 do
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resultset^[i]:=tsetconstnode(left).value_set^[i] xor tsetconstnode(right).value_set^[i];
|
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t:=csetconstnode.create(resultset,left.resulttype);
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end;
|
|
unequaln :
|
|
begin
|
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b:=true;
|
|
for i:=0 to 31 do
|
|
if tsetconstnode(right).value_set^[i]=tsetconstnode(left).value_set^[i] then
|
|
begin
|
|
b:=false;
|
|
break;
|
|
end;
|
|
t:=cordconstnode.create(ord(b),booltype);
|
|
end;
|
|
equaln :
|
|
begin
|
|
b:=true;
|
|
for i:=0 to 31 do
|
|
if tsetconstnode(right).value_set^[i]<>tsetconstnode(left).value_set^[i] then
|
|
begin
|
|
b:=false;
|
|
break;
|
|
end;
|
|
t:=cordconstnode.create(ord(b),booltype);
|
|
end;
|
|
lten :
|
|
begin
|
|
b := true;
|
|
For i := 0 to 31 Do
|
|
If (tsetconstnode(right).value_set^[i] And tsetconstnode(left).value_set^[i]) <>
|
|
tsetconstnode(left).value_set^[i] Then
|
|
Begin
|
|
b := false;
|
|
Break
|
|
End;
|
|
t := cordconstnode.create(ord(b),booltype);
|
|
End;
|
|
gten :
|
|
Begin
|
|
b := true;
|
|
For i := 0 to 31 Do
|
|
If (tsetconstnode(left).value_set^[i] And tsetconstnode(right).value_set^[i]) <>
|
|
tsetconstnode(right).value_set^[i] Then
|
|
Begin
|
|
b := false;
|
|
Break
|
|
End;
|
|
t := cordconstnode.create(ord(b),booltype);
|
|
End;
|
|
end;
|
|
dispose(resultset);
|
|
result:=t;
|
|
exit;
|
|
end;
|
|
|
|
{ but an int/int gives real/real! }
|
|
if nodetype=slashn then
|
|
begin
|
|
CGMessage(type_h_use_div_for_int);
|
|
inserttypeconv(right,pbestrealtype^);
|
|
inserttypeconv(left,pbestrealtype^);
|
|
end
|
|
|
|
{ if both are orddefs then check sub types }
|
|
else if (ld.deftype=orddef) and (rd.deftype=orddef) then
|
|
begin
|
|
{ 2 booleans? Make them equal to the largest boolean }
|
|
if is_boolean(ld) and is_boolean(rd) then
|
|
begin
|
|
if torddef(left.resulttype.def).size>torddef(right.resulttype.def).size then
|
|
begin
|
|
right:=ctypeconvnode.create(right,left.resulttype);
|
|
ttypeconvnode(right).convtype:=tc_bool_2_int;
|
|
right.toggleflag(nf_explizit);
|
|
resulttypepass(right);
|
|
end
|
|
else if torddef(left.resulttype.def).size<torddef(right.resulttype.def).size then
|
|
begin
|
|
left:=ctypeconvnode.create(left,right.resulttype);
|
|
ttypeconvnode(left).convtype:=tc_bool_2_int;
|
|
left.toggleflag(nf_explizit);
|
|
resulttypepass(left);
|
|
end;
|
|
case nodetype of
|
|
xorn,
|
|
ltn,
|
|
lten,
|
|
gtn,
|
|
gten,
|
|
andn,
|
|
orn:
|
|
begin
|
|
end;
|
|
unequaln,
|
|
equaln:
|
|
begin
|
|
if not(cs_full_boolean_eval in aktlocalswitches) then
|
|
begin
|
|
{ Remove any compares with constants }
|
|
if (left.nodetype=ordconstn) then
|
|
begin
|
|
hp:=right;
|
|
b:=(tordconstnode(left).value<>0);
|
|
ot:=nodetype;
|
|
left.free;
|
|
left:=nil;
|
|
right:=nil;
|
|
if (not(b) and (ot=equaln)) or
|
|
(b and (ot=unequaln)) then
|
|
begin
|
|
hp:=cnotnode.create(hp);
|
|
end;
|
|
result:=hp;
|
|
exit;
|
|
end;
|
|
if (right.nodetype=ordconstn) then
|
|
begin
|
|
hp:=left;
|
|
b:=(tordconstnode(right).value<>0);
|
|
ot:=nodetype;
|
|
right.free;
|
|
right:=nil;
|
|
left:=nil;
|
|
if (not(b) and (ot=equaln)) or
|
|
(b and (ot=unequaln)) then
|
|
begin
|
|
hp:=cnotnode.create(hp);
|
|
end;
|
|
result:=hp;
|
|
exit;
|
|
end;
|
|
end;
|
|
end;
|
|
else
|
|
CGMessage(type_e_mismatch);
|
|
end;
|
|
end
|
|
{ Both are chars? }
|
|
else if is_char(rd) and is_char(ld) then
|
|
begin
|
|
if nodetype=addn then
|
|
begin
|
|
resulttype:=cshortstringtype;
|
|
if not(is_constcharnode(left) and is_constcharnode(right)) then
|
|
begin
|
|
inserttypeconv(left,cshortstringtype);
|
|
hp := genaddsstringcharoptnode(self);
|
|
result := hp;
|
|
exit;
|
|
end;
|
|
end;
|
|
end
|
|
{ is there a signed 64 bit type ? }
|
|
else if ((torddef(rd).typ=s64bit) or (torddef(ld).typ=s64bit)) then
|
|
begin
|
|
if (torddef(ld).typ<>s64bit) then
|
|
inserttypeconv(left,cs64bittype);
|
|
if (torddef(rd).typ<>s64bit) then
|
|
inserttypeconv(right,cs64bittype);
|
|
end
|
|
{ is there a unsigned 64 bit type ? }
|
|
else if ((torddef(rd).typ=u64bit) or (torddef(ld).typ=u64bit)) then
|
|
begin
|
|
if (torddef(ld).typ<>u64bit) then
|
|
inserttypeconv(left,cu64bittype);
|
|
if (torddef(rd).typ<>u64bit) then
|
|
inserttypeconv(right,cu64bittype);
|
|
end
|
|
{ is there a cardinal? }
|
|
else if ((torddef(rd).typ=u32bit) or (torddef(ld).typ=u32bit)) then
|
|
begin
|
|
if is_signed(ld) and
|
|
{ then rd = u32bit }
|
|
{ convert positive constants to u32bit }
|
|
not(is_constintnode(left) and
|
|
(tordconstnode(left).value >= 0)) and
|
|
{ range/overflow checking on mixed signed/cardinal expressions }
|
|
{ is only possible if you convert everything to 64bit (JM) }
|
|
((aktlocalswitches * [cs_check_overflow,cs_check_range] <> []) and
|
|
(nodetype in [addn,subn,muln])) then
|
|
begin
|
|
{ perform the operation in 64bit }
|
|
CGMessage(type_w_mixed_signed_unsigned);
|
|
inserttypeconv(left,cs64bittype);
|
|
inserttypeconv(right,cs64bittype);
|
|
end
|
|
else
|
|
begin
|
|
{ and,or,xor work on bit patterns and don't care
|
|
about the sign }
|
|
if nodetype in [andn,orn,xorn] then
|
|
inserttypeconv_explicit(left,u32bittype)
|
|
else
|
|
begin
|
|
if is_signed(ld) and
|
|
not(is_constintnode(left) and
|
|
(tordconstnode(left).value >= 0)) and
|
|
(cs_check_range in aktlocalswitches) then
|
|
CGMessage(type_w_mixed_signed_unsigned2);
|
|
inserttypeconv(left,u32bittype);
|
|
end;
|
|
|
|
if is_signed(rd) and
|
|
{ then ld = u32bit }
|
|
{ convert positive constants to u32bit }
|
|
not(is_constintnode(right) and
|
|
(tordconstnode(right).value >= 0)) and
|
|
((aktlocalswitches * [cs_check_overflow,cs_check_range] <> []) and
|
|
(nodetype in [addn,subn,muln])) then
|
|
begin
|
|
{ perform the operation in 64bit }
|
|
CGMessage(type_w_mixed_signed_unsigned);
|
|
inserttypeconv(left,cs64bittype);
|
|
inserttypeconv(right,cs64bittype);
|
|
end
|
|
else
|
|
begin
|
|
{ and,or,xor work on bit patterns and don't care
|
|
about the sign }
|
|
if nodetype in [andn,orn,xorn] then
|
|
inserttypeconv_explicit(left,u32bittype)
|
|
else
|
|
begin
|
|
if is_signed(rd) and
|
|
not(is_constintnode(right) and
|
|
(tordconstnode(right).value >= 0)) and
|
|
(cs_check_range in aktlocalswitches) then
|
|
CGMessage(type_w_mixed_signed_unsigned2);
|
|
inserttypeconv(right,u32bittype);
|
|
end;
|
|
end;
|
|
end;
|
|
end
|
|
{ generic ord conversion is s32bit }
|
|
else
|
|
begin
|
|
inserttypeconv(right,s32bittype);
|
|
inserttypeconv(left,s32bittype);
|
|
end;
|
|
end
|
|
|
|
{ if both are floatdefs, conversion is already done before constant folding }
|
|
else if (ld.deftype=floatdef) then
|
|
begin
|
|
{ already converted }
|
|
end
|
|
|
|
{ left side a setdef, must be before string processing,
|
|
else array constructor can be seen as array of char (PFV) }
|
|
else if (ld.deftype=setdef) then
|
|
begin
|
|
{ trying to add a set element? }
|
|
if (nodetype=addn) and (rd.deftype<>setdef) then
|
|
begin
|
|
if (rt=setelementn) then
|
|
begin
|
|
if not(is_equal(tsetdef(ld).elementtype.def,rd)) then
|
|
CGMessage(type_e_set_element_are_not_comp);
|
|
end
|
|
else
|
|
CGMessage(type_e_mismatch)
|
|
end
|
|
else
|
|
begin
|
|
if not(nodetype in [addn,subn,symdifn,muln,equaln,unequaln,lten,gten]) 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 (tsetdef(ld).settype=smallset) and
|
|
(rt=setelementn) and
|
|
assigned(tsetelementnode(right).right) then
|
|
begin
|
|
{ generate a temporary normset def, it'll be destroyed
|
|
when the symtable is unloaded }
|
|
htype.setdef(tsetdef.create(tsetdef(ld).elementtype,255));
|
|
inserttypeconv(left,htype);
|
|
end;
|
|
|
|
{ if the right side is also a setdef then the settype must
|
|
be the same as the left setdef }
|
|
if (rd.deftype=setdef) and
|
|
(tsetdef(ld).settype<>tsetdef(rd).settype) then
|
|
inserttypeconv(right,left.resulttype);
|
|
end
|
|
|
|
{ compare pchar to char arrays by addresses like BP/Delphi }
|
|
else if (is_pchar(ld) and is_chararray(rd)) or
|
|
(is_pchar(rd) and is_chararray(ld)) then
|
|
begin
|
|
if is_chararray(rd) then
|
|
inserttypeconv(right,left.resulttype)
|
|
else
|
|
inserttypeconv(left,right.resulttype);
|
|
end
|
|
|
|
{ is one of the operands a string?,
|
|
chararrays are also handled as strings (after conversion), also take
|
|
care of chararray+chararray and chararray+char }
|
|
else 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
|
|
inserttypeconv(right,cwidestringtype);
|
|
if not(is_widestring(ld)) then
|
|
inserttypeconv(left,cwidestringtype);
|
|
end
|
|
else if is_ansistring(rd) or is_ansistring(ld) then
|
|
begin
|
|
if not(is_ansistring(rd)) then
|
|
inserttypeconv(right,cansistringtype);
|
|
if not(is_ansistring(ld)) then
|
|
inserttypeconv(left,cansistringtype);
|
|
end
|
|
else if is_longstring(rd) or is_longstring(ld) then
|
|
begin
|
|
if not(is_longstring(rd)) then
|
|
inserttypeconv(right,clongstringtype);
|
|
if not(is_longstring(ld)) then
|
|
inserttypeconv(left,clongstringtype);
|
|
location.loc:=LOC_CREFERENCE;
|
|
end
|
|
else
|
|
begin
|
|
if not(is_shortstring(ld)) then
|
|
inserttypeconv(left,cshortstringtype);
|
|
{ don't convert char, that can be handled by the optimized node }
|
|
if not(is_shortstring(rd) or is_char(rd)) then
|
|
inserttypeconv(right,cshortstringtype);
|
|
end;
|
|
|
|
end
|
|
|
|
{ pointer comparision and subtraction }
|
|
else if (rd.deftype=pointerdef) and (ld.deftype=pointerdef) then
|
|
begin
|
|
case nodetype of
|
|
equaln,unequaln :
|
|
begin
|
|
if is_voidpointer(right.resulttype.def) then
|
|
inserttypeconv(right,left.resulttype)
|
|
else if is_voidpointer(left.resulttype.def) then
|
|
inserttypeconv(left,right.resulttype)
|
|
else if not(is_equal(ld,rd)) then
|
|
CGMessage(type_e_mismatch);
|
|
end;
|
|
ltn,lten,gtn,gten:
|
|
begin
|
|
if (cs_extsyntax in aktmoduleswitches) then
|
|
begin
|
|
if is_voidpointer(right.resulttype.def) then
|
|
inserttypeconv(right,left.resulttype)
|
|
else if is_voidpointer(left.resulttype.def) then
|
|
inserttypeconv(left,right.resulttype)
|
|
else if not(is_equal(ld,rd)) then
|
|
CGMessage(type_e_mismatch);
|
|
end
|
|
else
|
|
CGMessage(type_e_mismatch);
|
|
end;
|
|
subn:
|
|
begin
|
|
if (cs_extsyntax in aktmoduleswitches) then
|
|
begin
|
|
if is_voidpointer(right.resulttype.def) then
|
|
inserttypeconv(right,left.resulttype)
|
|
else if is_voidpointer(left.resulttype.def) then
|
|
inserttypeconv(left,right.resulttype)
|
|
else if not(is_equal(ld,rd)) then
|
|
CGMessage(type_e_mismatch);
|
|
end
|
|
else
|
|
CGMessage(type_e_mismatch);
|
|
resulttype:=s32bittype;
|
|
exit;
|
|
end;
|
|
addn:
|
|
begin
|
|
if (cs_extsyntax in aktmoduleswitches) then
|
|
begin
|
|
if is_voidpointer(right.resulttype.def) then
|
|
inserttypeconv(right,left.resulttype)
|
|
else if is_voidpointer(left.resulttype.def) then
|
|
inserttypeconv(left,right.resulttype)
|
|
else if not(is_equal(ld,rd)) then
|
|
CGMessage(type_e_mismatch);
|
|
end
|
|
else
|
|
CGMessage(type_e_mismatch);
|
|
resulttype:=s32bittype;
|
|
exit;
|
|
end;
|
|
else
|
|
CGMessage(type_e_mismatch);
|
|
end;
|
|
end
|
|
|
|
{ class or interface equation }
|
|
else if is_class_or_interface(rd) or is_class_or_interface(ld) then
|
|
begin
|
|
if is_class_or_interface(rd) and is_class_or_interface(ld) then
|
|
begin
|
|
if tobjectdef(rd).is_related(tobjectdef(ld)) then
|
|
inserttypeconv(right,left.resulttype)
|
|
else
|
|
inserttypeconv(left,right.resulttype);
|
|
end
|
|
else if is_class_or_interface(rd) then
|
|
inserttypeconv(left,right.resulttype)
|
|
else
|
|
inserttypeconv(right,left.resulttype);
|
|
|
|
if not(nodetype in [equaln,unequaln]) then
|
|
CGMessage(type_e_mismatch);
|
|
end
|
|
|
|
else if (rd.deftype=classrefdef) and (ld.deftype=classrefdef) then
|
|
begin
|
|
if tobjectdef(tclassrefdef(rd).pointertype.def).is_related(
|
|
tobjectdef(tclassrefdef(ld).pointertype.def)) then
|
|
inserttypeconv(right,left.resulttype)
|
|
else
|
|
inserttypeconv(left,right.resulttype);
|
|
|
|
if not(nodetype in [equaln,unequaln]) then
|
|
CGMessage(type_e_mismatch);
|
|
end
|
|
|
|
{ allows comperasion with nil pointer }
|
|
else if is_class_or_interface(rd) or (rd.deftype=classrefdef) then
|
|
begin
|
|
inserttypeconv(left,right.resulttype);
|
|
if not(nodetype in [equaln,unequaln]) then
|
|
CGMessage(type_e_mismatch);
|
|
end
|
|
|
|
else if is_class_or_interface(ld) or (ld.deftype=classrefdef) then
|
|
begin
|
|
inserttypeconv(right,left.resulttype);
|
|
if not(nodetype in [equaln,unequaln]) then
|
|
CGMessage(type_e_mismatch);
|
|
end
|
|
|
|
{ support procvar=nil,procvar<>nil }
|
|
else if ((ld.deftype=procvardef) and (rt=niln)) or
|
|
((rd.deftype=procvardef) and (lt=niln)) then
|
|
begin
|
|
if not(nodetype in [equaln,unequaln]) then
|
|
CGMessage(type_e_mismatch);
|
|
end
|
|
|
|
{$ifdef SUPPORT_MMX}
|
|
{ mmx support, this must be before the zero based array
|
|
check }
|
|
else if (cs_mmx in aktlocalswitches) and
|
|
is_mmx_able_array(ld) and
|
|
is_mmx_able_array(rd) and
|
|
is_equal(ld,rd) then
|
|
begin
|
|
case nodetype of
|
|
addn,subn,xorn,orn,andn:
|
|
;
|
|
{ mul is a little bit restricted }
|
|
muln:
|
|
if not(mmx_type(ld) in [mmxu16bit,mmxs16bit,mmxfixed16]) then
|
|
CGMessage(type_e_mismatch);
|
|
else
|
|
CGMessage(type_e_mismatch);
|
|
end;
|
|
end
|
|
{$endif SUPPORT_MMX}
|
|
|
|
{ this is a little bit dangerous, also the left type }
|
|
{ pointer to should be checked! This broke the mmx support }
|
|
else if (rd.deftype=pointerdef) or is_zero_based_array(rd) then
|
|
begin
|
|
if is_zero_based_array(rd) then
|
|
begin
|
|
resulttype.setdef(tpointerdef.create(tarraydef(rd).elementtype));
|
|
inserttypeconv(right,resulttype);
|
|
end;
|
|
inserttypeconv(left,s32bittype);
|
|
if nodetype=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);
|
|
if (rd.deftype=pointerdef) and
|
|
(tpointerdef(rd).pointertype.def.size>1) then
|
|
left:=caddnode.create(muln,left,cordconstnode.create(tpointerdef(rd).pointertype.def.size,s32bittype));
|
|
end
|
|
else
|
|
CGMessage(type_e_mismatch);
|
|
end
|
|
|
|
else if (ld.deftype=pointerdef) or is_zero_based_array(ld) then
|
|
begin
|
|
if is_zero_based_array(ld) then
|
|
begin
|
|
resulttype.setdef(tpointerdef.create(tarraydef(ld).elementtype));
|
|
inserttypeconv(left,resulttype);
|
|
end;
|
|
inserttypeconv(right,s32bittype);
|
|
if nodetype in [addn,subn] 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);
|
|
if (ld.deftype=pointerdef) and
|
|
(tpointerdef(ld).pointertype.def.size>1) then
|
|
right:=caddnode.create(muln,right,cordconstnode.create(tpointerdef(ld).pointertype.def.size,s32bittype));
|
|
end
|
|
else
|
|
CGMessage(type_e_mismatch);
|
|
end
|
|
|
|
else if (rd.deftype=procvardef) and (ld.deftype=procvardef) and is_equal(rd,ld) then
|
|
begin
|
|
if not (nodetype in [equaln,unequaln]) then
|
|
CGMessage(type_e_mismatch);
|
|
end
|
|
|
|
{ enums }
|
|
else if (ld.deftype=enumdef) and (rd.deftype=enumdef) then
|
|
begin
|
|
if not(is_equal(ld,rd)) then
|
|
inserttypeconv(right,left.resulttype);
|
|
if not(nodetype in [equaln,unequaln,ltn,lten,gtn,gten]) then
|
|
CGMessage(type_e_mismatch);
|
|
end
|
|
|
|
{ generic conversion, this is for error recovery }
|
|
else
|
|
begin
|
|
inserttypeconv(left,s32bittype);
|
|
inserttypeconv(right,s32bittype);
|
|
end;
|
|
|
|
{ set resulttype if not already done }
|
|
if not assigned(resulttype.def) then
|
|
begin
|
|
case nodetype of
|
|
ltn,lten,gtn,gten,equaln,unequaln :
|
|
resulttype:=booltype;
|
|
slashn :
|
|
resulttype:=pbestrealtype^;
|
|
addn:
|
|
begin
|
|
{ for strings, return is always a 255 char string }
|
|
if is_shortstring(left.resulttype.def) then
|
|
resulttype:=cshortstringtype
|
|
else
|
|
resulttype:=left.resulttype;
|
|
end;
|
|
else
|
|
resulttype:=left.resulttype;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
|
|
function taddnode.first_addstring: tnode;
|
|
var
|
|
p: tnode;
|
|
begin
|
|
{ when we get here, we are sure that both the left and the right }
|
|
{ node are both strings of the same stringtype (JM) }
|
|
case nodetype of
|
|
addn:
|
|
begin
|
|
{ note: if you implemented an fpc_shortstr_concat similar to the }
|
|
{ one in i386.inc, you have to override first_addstring like in }
|
|
{ ti386addnode.first_string and implement the shortstring concat }
|
|
{ manually! The generic routine is different from the i386 one (JM) }
|
|
|
|
{ create the call to the concat routine both strings as arguments }
|
|
result := ccallnode.createintern('fpc_'+
|
|
tstringdef(resulttype.def).stringtypname+'_concat',
|
|
ccallparanode.create(right,ccallparanode.create(left,nil)));
|
|
{ we reused the arguments }
|
|
left := nil;
|
|
right := nil;
|
|
firstpass(result);
|
|
end;
|
|
ltn,lten,gtn,gten,equaln,unequaln :
|
|
begin
|
|
{ generate better code for s='' and s<>'' }
|
|
if (nodetype in [equaln,unequaln]) and
|
|
(((left.nodetype=stringconstn) and (str_length(left)=0)) or
|
|
((right.nodetype=stringconstn) and (str_length(right)=0))) then
|
|
begin
|
|
{ switch so that the constant is always on the right }
|
|
if left.nodetype = stringconstn then
|
|
begin
|
|
p := left;
|
|
left := right;
|
|
right := p;
|
|
end;
|
|
if is_shortstring(left.resulttype.def) then
|
|
{ compare the length with 0 }
|
|
result := caddnode.create(nodetype,
|
|
cinlinenode.create(in_length_x,false,left),
|
|
cordconstnode.create(0,s32bittype))
|
|
else
|
|
begin
|
|
{ compare the pointer with nil (for ansistrings etc), }
|
|
{ faster than getting the length (JM) }
|
|
result:= caddnode.create(nodetype,
|
|
ctypeconvnode.create(left,voidpointertype),
|
|
cpointerconstnode.create(0,voidpointertype));
|
|
taddnode(result).left.toggleflag(nf_explizit);
|
|
end;
|
|
{ left is reused }
|
|
left := nil;
|
|
{ right isn't }
|
|
right.free;
|
|
right := nil;
|
|
firstpass(result);
|
|
exit;
|
|
end;
|
|
{ no string constant -> call compare routine }
|
|
result := ccallnode.createintern('fpc_'+
|
|
tstringdef(left.resulttype.def).stringtypname+'_compare',
|
|
ccallparanode.create(right,ccallparanode.create(left,nil)));
|
|
{ and compare its result with 0 according to the original operator }
|
|
result := caddnode.create(nodetype,result,
|
|
cordconstnode.create(0,s32bittype));
|
|
left := nil;
|
|
right := nil;
|
|
firstpass(result);
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
|
|
function taddnode.first_addset: tnode;
|
|
var
|
|
procname: string[31];
|
|
tempn: tnode;
|
|
paras: tcallparanode;
|
|
srsym: ttypesym;
|
|
begin
|
|
{ get the sym that represents the fpc_normal_set type }
|
|
if not searchsystype('FPC_NORMAL_SET',srsym) then
|
|
internalerror(200108313);
|
|
|
|
case nodetype of
|
|
equaln,unequaln,lten,gten:
|
|
begin
|
|
case nodetype of
|
|
equaln,unequaln:
|
|
procname := 'fpc_set_comp_sets';
|
|
lten,gten:
|
|
begin
|
|
procname := 'fpc_set_contains_sets';
|
|
{ (left >= right) = (right <= left) }
|
|
if nodetype = gten then
|
|
begin
|
|
tempn := left;
|
|
left := right;
|
|
right := tempn;
|
|
end;
|
|
end;
|
|
end;
|
|
{ convert the arguments (explicitely) to fpc_normal_set's }
|
|
left := ctypeconvnode.create(left,srsym.restype);
|
|
left.toggleflag(nf_explizit);
|
|
right := ctypeconvnode.create(right,srsym.restype);
|
|
right.toggleflag(nf_explizit);
|
|
result := ccallnode.createintern(procname,ccallparanode.create(right,
|
|
ccallparanode.create(left,nil)));
|
|
{ left and right are reused as parameters }
|
|
left := nil;
|
|
right := nil;
|
|
{ for an unequaln, we have to negate the result of comp_sets }
|
|
if nodetype = unequaln then
|
|
result := cnotnode.create(result);
|
|
end;
|
|
addn:
|
|
begin
|
|
{ optimize first loading of a set }
|
|
if (right.nodetype=setelementn) and
|
|
not(assigned(tsetelementnode(right).right)) and
|
|
is_emptyset(left) then
|
|
begin
|
|
{ type cast the value to pass as argument to a byte, }
|
|
{ since that's what the helper expects }
|
|
tsetelementnode(right).left :=
|
|
ctypeconvnode.create(tsetelementnode(right).left,u8bittype);
|
|
tsetelementnode(right).left.toggleflag(nf_explizit);
|
|
{ set the resulttype to the actual one (otherwise it's }
|
|
{ "fpc_normal_set") }
|
|
result := ccallnode.createinternres('fpc_set_create_element',
|
|
ccallparanode.create(tsetelementnode(right).left,nil),
|
|
resulttype);
|
|
{ reused }
|
|
tsetelementnode(right).left := nil;
|
|
end
|
|
else
|
|
begin
|
|
if right.nodetype=setelementn then
|
|
begin
|
|
{ convert the arguments to bytes, since that's what }
|
|
{ the helper expects }
|
|
tsetelementnode(right).left :=
|
|
ctypeconvnode.create(tsetelementnode(right).left,
|
|
u8bittype);
|
|
tsetelementnode(right).left.toggleflag(nf_explizit);
|
|
|
|
{ convert the original set (explicitely) to an }
|
|
{ fpc_normal_set so we can pass it to the helper }
|
|
left := ctypeconvnode.create(left,srsym.restype);
|
|
left.toggleflag(nf_explizit);
|
|
|
|
{ add a range or a single element? }
|
|
if assigned(tsetelementnode(right).right) then
|
|
begin
|
|
tsetelementnode(right).right :=
|
|
ctypeconvnode.create(tsetelementnode(right).right,
|
|
u8bittype);
|
|
tsetelementnode(right).right.toggleflag(nf_explizit);
|
|
|
|
{ create the call }
|
|
result := ccallnode.createinternres('fpc_set_set_range',
|
|
ccallparanode.create(tsetelementnode(right).right,
|
|
ccallparanode.create(tsetelementnode(right).left,
|
|
ccallparanode.create(left,nil))),resulttype);
|
|
end
|
|
else
|
|
begin
|
|
result := ccallnode.createinternres('fpc_set_set_byte',
|
|
ccallparanode.create(tsetelementnode(right).left,
|
|
ccallparanode.create(left,nil)),resulttype);
|
|
end;
|
|
{ remove reused parts from original node }
|
|
tsetelementnode(right).right := nil;
|
|
tsetelementnode(right).left := nil;
|
|
left := nil;
|
|
end
|
|
else
|
|
begin
|
|
{ add two sets }
|
|
|
|
{ convert the sets to fpc_normal_set's }
|
|
left := ctypeconvnode.create(left,srsym.restype);
|
|
left.toggleflag(nf_explizit);
|
|
right := ctypeconvnode.create(right,srsym.restype);
|
|
right.toggleflag(nf_explizit);
|
|
result := ccallnode.createinternres('fpc_set_add_sets',
|
|
ccallparanode.create(right,
|
|
ccallparanode.create(left,nil)),resulttype);
|
|
{ remove reused parts from original node }
|
|
left := nil;
|
|
right := nil;
|
|
end;
|
|
end
|
|
end;
|
|
subn,symdifn,muln:
|
|
begin
|
|
{ convert the sets to fpc_normal_set's }
|
|
left := ctypeconvnode.create(left,srsym.restype);
|
|
left.toggleflag(nf_explizit);
|
|
right := ctypeconvnode.create(right,srsym.restype);
|
|
right.toggleflag(nf_explizit);
|
|
paras := ccallparanode.create(right,
|
|
ccallparanode.create(left,nil));
|
|
case nodetype of
|
|
subn:
|
|
result := ccallnode.createinternres('fpc_set_sub_sets',
|
|
paras,resulttype);
|
|
symdifn:
|
|
result := ccallnode.createinternres('fpc_set_symdif_sets',
|
|
paras,resulttype);
|
|
muln:
|
|
result := ccallnode.createinternres('fpc_set_mul_sets',
|
|
paras,resulttype);
|
|
end;
|
|
{ remove reused parts from original node }
|
|
left := nil;
|
|
right := nil;
|
|
end;
|
|
else
|
|
internalerror(200108311);
|
|
end;
|
|
firstpass(result);
|
|
end;
|
|
|
|
|
|
function taddnode.first_add64bitint: tnode;
|
|
var
|
|
procname: string[31];
|
|
temp: tnode;
|
|
power: longint;
|
|
begin
|
|
result := nil;
|
|
{ create helper calls mul }
|
|
if nodetype <> muln then
|
|
exit;
|
|
|
|
{ make sure that if there is a constant, that it's on the right }
|
|
if left.nodetype = ordconstn then
|
|
begin
|
|
temp := right;
|
|
right := left;
|
|
left := temp;
|
|
end;
|
|
|
|
{ can we use a shift instead of a mul? }
|
|
if (right.nodetype = ordconstn) and
|
|
ispowerof2(tordconstnode(right).value,power) then
|
|
begin
|
|
tordconstnode(right).value := power;
|
|
result := cshlshrnode.create(shln,left,right);
|
|
{ left and right are reused }
|
|
left := nil;
|
|
right := nil;
|
|
{ return firstpassed new node }
|
|
firstpass(result);
|
|
exit;
|
|
end;
|
|
|
|
{ otherwise, create the parameters for the helper }
|
|
right := ccallparanode.create(
|
|
cordconstnode.create(ord(cs_check_overflow in aktlocalswitches),booltype),
|
|
ccallparanode.create(right,ccallparanode.create(left,nil)));
|
|
left := nil;
|
|
if torddef(resulttype.def).typ = s64bit then
|
|
procname := 'fpc_mul_int64'
|
|
else
|
|
procname := 'fpc_mul_qword';
|
|
result := ccallnode.createintern(procname,right);
|
|
right := nil;
|
|
firstpass(result);
|
|
end;
|
|
|
|
function taddnode.pass_1 : tnode;
|
|
var
|
|
hp : tnode;
|
|
lt,rt : tnodetype;
|
|
rd,ld : tdef;
|
|
begin
|
|
result:=nil;
|
|
{ first do the two subtrees }
|
|
firstpass(left);
|
|
firstpass(right);
|
|
if codegenerror then
|
|
exit;
|
|
|
|
{ load easier access variables }
|
|
rd:=right.resulttype.def;
|
|
ld:=left.resulttype.def;
|
|
rt:=right.nodetype;
|
|
lt:=left.nodetype;
|
|
|
|
{ int/int gives real/real! }
|
|
if nodetype=slashn then
|
|
begin
|
|
location.loc:=LOC_FPUREGISTER;
|
|
{ maybe we need an integer register to save }
|
|
{ a reference }
|
|
if ((left.location.loc<>LOC_FPUREGISTER) or
|
|
(right.location.loc<>LOC_FPUREGISTER)) and
|
|
(left.registers32=right.registers32) then
|
|
calcregisters(self,1,1,0)
|
|
else
|
|
calcregisters(self,0,1,0);
|
|
{ an add node always first loads both the left and the }
|
|
{ right in the fpu before doing the calculation. However, }
|
|
{ calcregisters(0,2,0) will overestimate the number of }
|
|
{ necessary registers (it will make it 3 in case one of }
|
|
{ the operands is already in the fpu) (JM) }
|
|
if ((left.location.loc <> LOC_FPUREGISTER) or
|
|
(right.location.loc <> LOC_FPUREGISTER)) and
|
|
(registersfpu < 2) then
|
|
inc(registersfpu);
|
|
end
|
|
|
|
{ if both are orddefs then check sub types }
|
|
else if (ld.deftype=orddef) and (rd.deftype=orddef) then
|
|
begin
|
|
{ 2 booleans ? }
|
|
if is_boolean(ld) and is_boolean(rd) then
|
|
begin
|
|
if not(cs_full_boolean_eval in aktlocalswitches) and
|
|
(nodetype in [andn,orn]) then
|
|
begin
|
|
location.loc:=LOC_JUMP;
|
|
calcregisters(self,0,0,0);
|
|
end
|
|
else
|
|
begin
|
|
location.loc := LOC_FLAGS;
|
|
if (left.location.loc in [LOC_JUMP,LOC_FLAGS]) and
|
|
(left.location.loc in [LOC_JUMP,LOC_FLAGS]) then
|
|
calcregisters(self,2,0,0)
|
|
else
|
|
calcregisters(self,1,0,0);
|
|
end;
|
|
end
|
|
else
|
|
{ Both are chars? only convert to shortstrings for addn }
|
|
if is_char(ld) then
|
|
begin
|
|
if nodetype=addn then
|
|
internalerror(200103291);
|
|
location.loc := LOC_FLAGS;
|
|
calcregisters(self,1,0,0);
|
|
end
|
|
{ is there a 64 bit type ? }
|
|
else if (torddef(ld).typ in [s64bit,u64bit]) then
|
|
begin
|
|
result := first_add64bitint;
|
|
if assigned(result) then
|
|
exit;
|
|
if nodetype in [addn,subn,muln,andn,orn,xorn] then
|
|
location.loc := LOC_REGISTER
|
|
else
|
|
location.loc := LOC_JUMP;
|
|
calcregisters(self,2,0,0)
|
|
end
|
|
{ is there a cardinal? }
|
|
else if (torddef(ld).typ=u32bit) then
|
|
begin
|
|
if nodetype in [addn,subn,muln,andn,orn,xorn] then
|
|
location.loc := LOC_REGISTER
|
|
else
|
|
location.loc := LOC_FLAGS;
|
|
calcregisters(self,1,0,0);
|
|
{ for unsigned mul we need an extra register }
|
|
if nodetype=muln then
|
|
inc(registers32);
|
|
end
|
|
{ generic s32bit conversion }
|
|
else
|
|
begin
|
|
if nodetype in [addn,subn,muln,andn,orn,xorn] then
|
|
location.loc := LOC_REGISTER
|
|
else
|
|
location.loc := LOC_FLAGS;
|
|
calcregisters(self,1,0,0);
|
|
end;
|
|
end
|
|
|
|
{ left side a setdef, must be before string processing,
|
|
else array constructor can be seen as array of char (PFV) }
|
|
else if (ld.deftype=setdef) then
|
|
begin
|
|
if tsetdef(ld).settype=smallset then
|
|
begin
|
|
location.loc:=LOC_REGISTER;
|
|
{ are we adding set elements ? }
|
|
if right.nodetype=setelementn then
|
|
calcregisters(self,2,0,0)
|
|
else
|
|
calcregisters(self,1,0,0);
|
|
end
|
|
else
|
|
begin
|
|
result := first_addset;
|
|
if assigned(result) then
|
|
exit;
|
|
location.loc:=LOC_CREFERENCE;
|
|
calcregisters(self,0,0,0);
|
|
{ here we call SET... }
|
|
if assigned(procinfo) then
|
|
procinfo^.flags:=procinfo^.flags or pi_do_call;
|
|
end;
|
|
end
|
|
|
|
{ compare pchar by addresses like BP/Delphi }
|
|
else if is_pchar(ld) then
|
|
begin
|
|
location.loc:=LOC_REGISTER;
|
|
calcregisters(self,1,0,0);
|
|
end
|
|
|
|
{ is one of the operands a string }
|
|
else if (ld.deftype=stringdef) then
|
|
begin
|
|
if is_widestring(ld) then
|
|
begin
|
|
{ we use reference counted widestrings so no fast exit here }
|
|
if assigned(procinfo) then
|
|
procinfo^.no_fast_exit:=true;
|
|
{ this is only for add, the comparisaion is handled later }
|
|
location.loc:=LOC_REGISTER;
|
|
end
|
|
else if is_ansistring(ld) then
|
|
begin
|
|
{ we use ansistrings so no fast exit here }
|
|
if assigned(procinfo) then
|
|
procinfo^.no_fast_exit:=true;
|
|
{ this is only for add, the comparisaion is handled later }
|
|
location.loc:=LOC_REGISTER;
|
|
end
|
|
else if is_longstring(ld) then
|
|
begin
|
|
{ this is only for add, the comparisaion is handled later }
|
|
location.loc:=LOC_CREFERENCE;
|
|
end
|
|
else
|
|
begin
|
|
if canbeaddsstringcharoptnode(self) then
|
|
begin
|
|
hp := genaddsstringcharoptnode(self);
|
|
firstpass(hp);
|
|
pass_1 := hp;
|
|
exit;
|
|
end
|
|
else
|
|
begin
|
|
{ Fix right to be shortstring }
|
|
if is_char(right.resulttype.def) then
|
|
begin
|
|
inserttypeconv(right,cshortstringtype);
|
|
firstpass(right);
|
|
end;
|
|
end;
|
|
if canbeaddsstringcsstringoptnode(self) then
|
|
begin
|
|
hp := genaddsstringcsstringoptnode(self);
|
|
firstpass(hp);
|
|
pass_1 := hp;
|
|
exit;
|
|
end;
|
|
end;
|
|
{ otherwise, let addstring convert everything }
|
|
result := first_addstring;
|
|
exit;
|
|
end
|
|
|
|
{ is one a real float ? }
|
|
else if (rd.deftype=floatdef) or (ld.deftype=floatdef) then
|
|
begin
|
|
location.loc:=LOC_FPUREGISTER;
|
|
calcregisters(self,0,1,0);
|
|
{ an add node always first loads both the left and the }
|
|
{ right in the fpu before doing the calculation. However, }
|
|
{ calcregisters(0,2,0) will overestimate the number of }
|
|
{ necessary registers (it will make it 3 in case one of }
|
|
{ the operands is already in the fpu) (JM) }
|
|
if ((left.location.loc <> LOC_FPUREGISTER) or
|
|
(right.location.loc <> LOC_FPUREGISTER)) and
|
|
(registersfpu < 2) then
|
|
inc(registersfpu);
|
|
end
|
|
|
|
{ pointer comperation and subtraction }
|
|
else if (ld.deftype=pointerdef) then
|
|
begin
|
|
location.loc:=LOC_REGISTER;
|
|
calcregisters(self,1,0,0);
|
|
end
|
|
|
|
else if is_class_or_interface(ld) then
|
|
begin
|
|
location.loc:=LOC_REGISTER;
|
|
calcregisters(self,1,0,0);
|
|
end
|
|
|
|
else if (ld.deftype=classrefdef) then
|
|
begin
|
|
location.loc:=LOC_REGISTER;
|
|
calcregisters(self,1,0,0);
|
|
end
|
|
|
|
{ support procvar=nil,procvar<>nil }
|
|
else if ((ld.deftype=procvardef) and (rt=niln)) or
|
|
((rd.deftype=procvardef) and (lt=niln)) then
|
|
begin
|
|
location.loc:=LOC_REGISTER;
|
|
calcregisters(self,1,0,0);
|
|
end
|
|
|
|
{$ifdef SUPPORT_MMX}
|
|
{ mmx support, this must be before the zero based array
|
|
check }
|
|
else if (cs_mmx in aktlocalswitches) and is_mmx_able_array(ld) and
|
|
is_mmx_able_array(rd) then
|
|
begin
|
|
location.loc:=LOC_MMXREGISTER;
|
|
calcregisters(self,0,0,1);
|
|
end
|
|
{$endif SUPPORT_MMX}
|
|
|
|
else if (rd.deftype=pointerdef) or (ld.deftype=pointerdef) then
|
|
begin
|
|
location.loc:=LOC_REGISTER;
|
|
calcregisters(self,1,0,0);
|
|
end
|
|
|
|
else if (rd.deftype=procvardef) and (ld.deftype=procvardef) and is_equal(rd,ld) then
|
|
begin
|
|
location.loc:=LOC_REGISTER;
|
|
calcregisters(self,1,0,0);
|
|
end
|
|
|
|
else if (ld.deftype=enumdef) then
|
|
begin
|
|
location.loc := LOC_FLAGS;
|
|
calcregisters(self,1,0,0);
|
|
end
|
|
|
|
{$ifdef SUPPORT_MMX}
|
|
else if (cs_mmx in aktlocalswitches) and
|
|
is_mmx_able_array(ld) and
|
|
is_mmx_able_array(rd) then
|
|
begin
|
|
location.loc:=LOC_MMXREGISTER;
|
|
calcregisters(self,0,0,1);
|
|
end
|
|
{$endif SUPPORT_MMX}
|
|
|
|
{ the general solution is to convert to 32 bit int }
|
|
else
|
|
begin
|
|
location.loc:=LOC_REGISTER;
|
|
calcregisters(self,1,0,0);
|
|
end;
|
|
end;
|
|
|
|
begin
|
|
caddnode:=taddnode;
|
|
end.
|
|
{
|
|
$Log$
|
|
Revision 1.51 2002-05-18 13:34:08 peter
|
|
* readded missing revisions
|
|
|
|
Revision 1.50 2002/05/16 19:46:37 carl
|
|
+ defines.inc -> fpcdefs.inc to avoid conflicts if compiling by hand
|
|
+ try to fix temp allocation (still in ifdef)
|
|
+ generic constructor calls
|
|
+ start of tassembler / tmodulebase class cleanup
|
|
|
|
Revision 1.48 2002/05/13 19:54:36 peter
|
|
* removed n386ld and n386util units
|
|
* maybe_save/maybe_restore added instead of the old maybe_push
|
|
|
|
Revision 1.47 2002/05/12 16:53:06 peter
|
|
* moved entry and exitcode to ncgutil and cgobj
|
|
* foreach gets extra argument for passing local data to the
|
|
iterator function
|
|
* -CR checks also class typecasts at runtime by changing them
|
|
into as
|
|
* fixed compiler to cycle with the -CR option
|
|
* fixed stabs with elf writer, finally the global variables can
|
|
be watched
|
|
* removed a lot of routines from cga unit and replaced them by
|
|
calls to cgobj
|
|
* u32bit-s32bit updates for and,or,xor nodes. When one element is
|
|
u32bit then the other is typecasted also to u32bit without giving
|
|
a rangecheck warning/error.
|
|
* fixed pascal calling method with reversing also the high tree in
|
|
the parast, detected by tcalcst3 test
|
|
|
|
Revision 1.46 2002/04/23 19:16:34 peter
|
|
* add pinline unit that inserts compiler supported functions using
|
|
one or more statements
|
|
* moved finalize and setlength from ninl to pinline
|
|
|
|
Revision 1.45 2002/04/04 19:05:56 peter
|
|
* removed unused units
|
|
* use tlocation.size in cg.a_*loc*() routines
|
|
|
|
Revision 1.44 2002/04/02 17:11:28 peter
|
|
* tlocation,treference update
|
|
* LOC_CONSTANT added for better constant handling
|
|
* secondadd splitted in multiple routines
|
|
* location_force_reg added for loading a location to a register
|
|
of a specified size
|
|
* secondassignment parses now first the right and then the left node
|
|
(this is compatible with Kylix). This saves a lot of push/pop especially
|
|
with string operations
|
|
* adapted some routines to use the new cg methods
|
|
|
|
Revision 1.43 2002/03/30 23:12:09 carl
|
|
* avoid crash with procinfo ('merged')
|
|
|
|
}
|