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https://gitlab.com/freepascal.org/fpc/source.git
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1243 lines
51 KiB
ObjectPascal
1243 lines
51 KiB
ObjectPascal
{
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$Id$
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Copyright (c) 1993-98 by Florian Klaempfl
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Generate i386 inline 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 cg386inl;
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interface
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uses
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tree;
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procedure secondinline(var p : ptree);
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implementation
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uses
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globtype,systems,
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cobjects,verbose,globals,files,
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symtable,aasm,types,
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hcodegen,temp_gen,pass_2,
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{$ifdef ag386bin}
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i386base,i386asm,
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{$else}
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i386,
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{$endif}
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cgai386,tgeni386,cg386ld,cg386cal;
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{*****************************************************************************
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Helpers
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*****************************************************************************}
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{ reverts the parameter list }
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var nb_para : integer;
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function reversparameter(p : ptree) : ptree;
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var
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hp1,hp2 : ptree;
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begin
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hp1:=nil;
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nb_para := 0;
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while assigned(p) do
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begin
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{ pull out }
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hp2:=p;
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p:=p^.right;
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inc(nb_para);
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{ pull in }
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hp2^.right:=hp1;
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hp1:=hp2;
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end;
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reversparameter:=hp1;
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end;
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{*****************************************************************************
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SecondInLine
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*****************************************************************************}
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procedure secondinline(var p : ptree);
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const
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{ tfloattype = (f32bit,s32real,s64real,s80real,s64bit); }
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float_name: array[tfloattype] of string[8]=
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('FIXED','SINGLE','REAL','EXTENDED','COMP','FIXED16');
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incdecop:array[in_inc_x..in_dec_x] of tasmop=(A_INC,A_DEC);
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addsubop:array[in_inc_x..in_dec_x] of tasmop=(A_ADD,A_SUB);
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var
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aktfile : treference;
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ft : tfiletype;
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opsize : topsize;
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asmop : tasmop;
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pushed : tpushed;
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{inc/dec}
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addconstant : boolean;
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addvalue : longint;
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procedure handlereadwrite(doread,doln : boolean);
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{ produces code for READ(LN) and WRITE(LN) }
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procedure loadstream;
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const
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io:array[0..1] of string[7]=('_OUTPUT','_INPUT');
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var
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r : preference;
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begin
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new(r);
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reset_reference(r^);
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r^.symbol:=newasmsymbol('U_'+upper(target_info.system_unit)+io[byte(doread)]);
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concat_external(r^.symbol^.name,EXT_NEAR);
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exprasmlist^.concat(new(pai386,op_ref_reg(A_LEA,S_L,r,R_EDI)))
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end;
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var
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node,hp : ptree;
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typedtyp,
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pararesult : pdef;
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has_length : boolean;
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dummycoll : tdefcoll;
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iolabel : plabel;
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npara : longint;
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begin
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{ I/O check }
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if (cs_check_io in aktlocalswitches) and
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((aktprocsym^.definition^.options and poiocheck)=0) then
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begin
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getlabel(iolabel);
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emitlab(iolabel);
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end
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else
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iolabel:=nil;
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{ for write of real with the length specified }
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has_length:=false;
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hp:=nil;
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{ reserve temporary pointer to data variable }
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aktfile.symbol:=nil;
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gettempofsizereference(4,aktfile);
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{ first state text data }
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ft:=ft_text;
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{ and state a parameter ? }
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if p^.left=nil then
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begin
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{ the following instructions are for "writeln;" }
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loadstream;
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{ save @aktfile in temporary variable }
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exprasmlist^.concat(new(pai386,op_reg_ref(A_MOV,S_L,R_EDI,newreference(aktfile))));
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end
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else
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begin
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{ revers paramters }
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node:=reversparameter(p^.left);
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p^.left := node;
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npara := nb_para;
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{ calculate data variable }
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{ is first parameter a file type ? }
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if node^.left^.resulttype^.deftype=filedef then
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begin
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ft:=pfiledef(node^.left^.resulttype)^.filetype;
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if ft=ft_typed then
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typedtyp:=pfiledef(node^.left^.resulttype)^.typed_as;
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secondpass(node^.left);
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if codegenerror then
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exit;
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{ save reference in temporary variables }
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if node^.left^.location.loc<>LOC_REFERENCE then
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begin
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CGMessage(cg_e_illegal_expression);
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exit;
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end;
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exprasmlist^.concat(new(pai386,op_ref_reg(A_LEA,S_L,newreference(node^.left^.location.reference),R_EDI)));
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{ skip to the next parameter }
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node:=node^.right;
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end
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else
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begin
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{ load stdin/stdout stream }
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loadstream;
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end;
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{ save @aktfile in temporary variable }
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exprasmlist^.concat(new(pai386,op_reg_ref(A_MOV,S_L,R_EDI,newreference(aktfile))));
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if doread then
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{ parameter by READ gives call by reference }
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dummycoll.paratyp:=vs_var
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{ an WRITE Call by "Const" }
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else
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dummycoll.paratyp:=vs_const;
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{ because of secondcallparan, which otherwise attaches }
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if ft=ft_typed then
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{ this is to avoid copy of simple const parameters }
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dummycoll.data:=new(pformaldef,init)
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else
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{ I think, this isn't a good solution (FK) }
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dummycoll.data:=nil;
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while assigned(node) do
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begin
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pushusedregisters(pushed,$ff);
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hp:=node;
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node:=node^.right;
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hp^.right:=nil;
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if hp^.is_colon_para then
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CGMessage(parser_e_illegal_colon_qualifier);
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if ft=ft_typed then
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never_copy_const_param:=true;
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{ reset data type }
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dummycoll.data:=nil;
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{ support openstring calling for readln(shortstring) }
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if doread and (is_shortstring(hp^.resulttype)) then
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dummycoll.data:=openshortstringdef;
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secondcallparan(hp,@dummycoll,false,false,0);
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if ft=ft_typed then
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never_copy_const_param:=false;
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hp^.right:=node;
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if codegenerror then
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exit;
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emit_push_mem(aktfile);
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if (ft=ft_typed) then
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begin
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{ OK let's try this }
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{ first we must only allow the right type }
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{ we have to call blockread or blockwrite }
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{ but the real problem is that }
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{ reset and rewrite should have set }
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{ the type size }
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{ as recordsize for that file !!!! }
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{ how can we make that }
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{ I think that is only possible by adding }
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{ reset and rewrite to the inline list a call }
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{ allways read only one record by element }
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push_int(typedtyp^.size);
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if doread then
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emitcall('FPC_TYPED_READ',true)
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else
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emitcall('FPC_TYPED_WRITE',true);
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end
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else
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begin
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{ save current position }
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pararesult:=hp^.left^.resulttype;
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{ handle possible field width }
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{ of course only for write(ln) }
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if not doread then
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begin
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{ handle total width parameter }
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if assigned(node) and node^.is_colon_para then
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begin
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hp:=node;
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node:=node^.right;
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hp^.right:=nil;
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secondcallparan(hp,@dummycoll,false,false,0);
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hp^.right:=node;
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if codegenerror then
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exit;
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has_length:=true;
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end
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else
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if pararesult^.deftype<>floatdef then
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push_int(0)
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else
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push_int(-32767);
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{ a second colon para for a float ? }
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if assigned(node) and node^.is_colon_para then
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begin
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hp:=node;
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node:=node^.right;
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hp^.right:=nil;
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secondcallparan(hp,@dummycoll,false,false,0);
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hp^.right:=node;
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if pararesult^.deftype<>floatdef then
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CGMessage(parser_e_illegal_colon_qualifier);
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if codegenerror then
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exit;
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end
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else
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begin
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if pararesult^.deftype=floatdef then
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push_int(-1);
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end
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end;
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case pararesult^.deftype of
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stringdef : begin
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if doread then
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begin
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{ push maximum string length }
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case pstringdef(pararesult)^.string_typ of
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st_shortstring:
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emitcall ('FPC_READ_TEXT_STRING',true);
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st_ansistring:
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emitcall ('FPC_READ_TEXT_ANSISTRING',true);
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st_longstring:
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emitcall ('FPC_READ_TEXT_LONGSTRING',true);
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st_widestring:
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emitcall ('FPC_READ_TEXT_ANSISTRING',true);
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end
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end
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else
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Case pstringdef(Pararesult)^.string_typ of
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st_shortstring:
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emitcall ('FPC_WRITE_TEXT_STRING',true);
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st_ansistring:
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emitcall ('FPC_WRITE_TEXT_ANSISTRING',true);
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st_longstring:
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emitcall ('FPC_WRITE_TEXT_LONGSTRING',true);
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st_widestring:
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emitcall ('FPC_WRITE_TEXT_ANSISTRING',true);
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end;
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end;
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pointerdef : begin
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if is_equal(ppointerdef(pararesult)^.definition,cchardef) then
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begin
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if doread then
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emitcall('FPC_READ_TEXT_PCHAR_AS_POINTER',true)
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else
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emitcall('FPC_WRITE_TEXT_PCHAR_AS_POINTER',true);
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end;
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end;
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arraydef : begin
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if is_chararray(pararesult) then
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begin
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if doread then
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emitcall('FPC_READ_TEXT_PCHAR_AS_ARRAY',true)
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else
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emitcall('FPC_WRITE_TEXT_PCHAR_AS_ARRAY',true);
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end;
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end;
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floatdef : begin
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if doread then
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emitcall('FPC_READ_TEXT_'+float_name[pfloatdef(pararesult)^.typ],true)
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else
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emitcall('FPC_WRITE_TEXT_'+float_name[pfloatdef(pararesult)^.typ],true);
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end;
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orddef : begin
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case porddef(pararesult)^.typ of
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u8bit : if doread then
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emitcall('FPC_READ_TEXT_BYTE',true);
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s8bit : if doread then
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emitcall('FPC_READ_TEXT_SHORTINT',true);
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u16bit : if doread then
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emitcall('FPC_READ_TEXT_WORD',true);
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s16bit : if doread then
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emitcall('FPC_READ_TEXT_INTEGER',true);
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s32bit : if doread then
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emitcall('FPC_READ_TEXT_LONGINT',true)
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else
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emitcall('FPC_WRITE_TEXT_LONGINT',true);
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u32bit : if doread then
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emitcall('FPC_READ_TEXT_CARDINAL',true)
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else
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emitcall('FPC_WRITE_TEXT_CARDINAL',true);
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uchar : if doread then
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emitcall('FPC_READ_TEXT_CHAR',true)
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else
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emitcall('FPC_WRITE_TEXT_CHAR',true);
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s64bitint:
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if doread then
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emitcall('FPC_READ_TEXT_INT64',true)
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else
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emitcall('FPC_WRITE_TEXT_INT64',true);
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u64bit : if doread then
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emitcall('FPC_READ_TEXT_QWORD',true)
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else
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emitcall('FPC_WRITE_TEXT_QWORD',true);
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bool8bit,
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bool16bit,
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bool32bit : if doread then
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CGMessage(parser_e_illegal_parameter_list)
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else
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emitcall('FPC_WRITE_TEXT_BOOLEAN',true);
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end;
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end;
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end;
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end;
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{ load ESI in methods again }
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popusedregisters(pushed);
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maybe_loadesi;
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end;
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end;
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{ Insert end of writing for textfiles }
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if ft=ft_text then
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begin
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pushusedregisters(pushed,$ff);
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emit_push_mem(aktfile);
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if doread then
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begin
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if doln then
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emitcall('FPC_READLN_END',true)
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else
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emitcall('FPC_READ_END',true);
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end
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else
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begin
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if doln then
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emitcall('FPC_WRITELN_END',true)
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else
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emitcall('FPC_WRITE_END',true);
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end;
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popusedregisters(pushed);
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maybe_loadesi;
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end;
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{ Insert IOCheck if set }
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if assigned(iolabel) then
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begin
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{ registers are saved in the procedure }
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exprasmlist^.concat(new(pai386,op_sym(A_PUSH,S_L,newasmsymbol(lab2str(iolabel)))));
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emitcall('FPC_IOCHECK',true);
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end;
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{ Freeup all used temps }
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ungetiftemp(aktfile);
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if assigned(p^.left) then
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begin
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p^.left:=reversparameter(p^.left);
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if npara<>nb_para then
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CGMessage(cg_f_internal_error_in_secondinline);
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hp:=p^.left;
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while assigned(hp) do
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begin
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if assigned(hp^.left) then
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if (hp^.left^.location.loc in [LOC_MEM,LOC_REFERENCE]) then
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ungetiftemp(hp^.left^.location.reference);
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hp:=hp^.right;
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end;
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end;
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end;
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procedure handle_str;
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var
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hp,node : ptree;
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dummycoll : tdefcoll;
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is_real,has_length : boolean;
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procedureprefix : string;
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begin
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pushusedregisters(pushed,$ff);
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node:=p^.left;
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is_real:=false;
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has_length:=false;
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while assigned(node^.right) do node:=node^.right;
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{ if a real parameter somewhere then call REALSTR }
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if (node^.left^.resulttype^.deftype=floatdef) then
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is_real:=true;
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node:=p^.left;
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{ we have at least two args }
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{ with at max 2 colon_para in between }
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{ string arg }
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hp:=node;
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node:=node^.right;
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hp^.right:=nil;
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dummycoll.paratyp:=vs_var;
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if is_shortstring(hp^.resulttype) then
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dummycoll.data:=openshortstringdef
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else
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dummycoll.data:=hp^.resulttype;
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case pstringdef(hp^.resulttype)^.string_typ of
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st_widestring:
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procedureprefix:='FPC_STRWIDE_';
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st_ansistring:
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procedureprefix:='FPC_STRANSI_';
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st_shortstring:
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procedureprefix:='FPC_STR_';
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st_longstring:
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procedureprefix:='FPC_STRLONG_';
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end;
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secondcallparan(hp,@dummycoll,false,false,0);
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if codegenerror then
|
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exit;
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dummycoll.paratyp:=vs_const;
|
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disposetree(p^.left);
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p^.left:=nil;
|
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{ second arg }
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hp:=node;
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node:=node^.right;
|
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hp^.right:=nil;
|
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{ frac para }
|
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if hp^.is_colon_para and assigned(node) and
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node^.is_colon_para then
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begin
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dummycoll.data:=hp^.resulttype;
|
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secondcallparan(hp,@dummycoll,false
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,false,0
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);
|
|
if codegenerror then
|
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exit;
|
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disposetree(hp);
|
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hp:=node;
|
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node:=node^.right;
|
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hp^.right:=nil;
|
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has_length:=true;
|
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end
|
|
else
|
|
if is_real then
|
|
push_int(-1);
|
|
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|
{ third arg, length only if is_real }
|
|
if hp^.is_colon_para then
|
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begin
|
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dummycoll.data:=hp^.resulttype;
|
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secondcallparan(hp,@dummycoll,false
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,false,0
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);
|
|
if codegenerror then
|
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exit;
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disposetree(hp);
|
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hp:=node;
|
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node:=node^.right;
|
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hp^.right:=nil;
|
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end
|
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else
|
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if is_real then
|
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push_int(-32767)
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else
|
|
push_int(-1);
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|
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{ last arg longint or real }
|
|
secondcallparan(hp,@dummycoll,false
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,false,0
|
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);
|
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disposetree(hp);
|
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|
|
if codegenerror then
|
|
exit;
|
|
|
|
if is_real then
|
|
emitcall(procedureprefix++float_name[pfloatdef(hp^.resulttype)^.typ],true)
|
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else
|
|
case porddef(hp^.resulttype)^.typ of
|
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u32bit:
|
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emitcall(procedureprefix+'CARDINAL',true);
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u64bit:
|
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emitcall(procedureprefix+'QWORD',true);
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s64bitint:
|
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emitcall(procedureprefix+'INT64',true);
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|
else
|
|
emitcall(procedureprefix+'LONGINT',true);
|
|
end;
|
|
popusedregisters(pushed);
|
|
end;
|
|
|
|
var
|
|
r : preference;
|
|
hp : ptree;
|
|
l : longint;
|
|
ispushed : boolean;
|
|
hregister : tregister;
|
|
otlabel,oflabel : plabel;
|
|
oldpushedparasize : longint;
|
|
|
|
begin
|
|
{ save & reset pushedparasize }
|
|
oldpushedparasize:=pushedparasize;
|
|
pushedparasize:=0;
|
|
case p^.inlinenumber of
|
|
in_assert_x_y:
|
|
begin
|
|
otlabel:=truelabel;
|
|
oflabel:=falselabel;
|
|
getlabel(truelabel);
|
|
getlabel(falselabel);
|
|
secondpass(p^.left^.left);
|
|
if cs_do_assertion in aktlocalswitches then
|
|
begin
|
|
maketojumpbool(p^.left^.left);
|
|
emitlab(falselabel);
|
|
{ erroraddr }
|
|
exprasmlist^.concat(new(pai386,op_reg(A_PUSH,S_L,R_EBP)));
|
|
{ lineno }
|
|
exprasmlist^.concat(new(pai386,op_const(A_PUSH,S_L,aktfilepos.line)));
|
|
{ filename string }
|
|
hp:=genstringconstnode(current_module^.sourcefiles^.get_file_name(aktfilepos.fileindex));
|
|
secondpass(hp);
|
|
if codegenerror then
|
|
exit;
|
|
emitpushreferenceaddr(exprasmlist,hp^.location.reference);
|
|
disposetree(hp);
|
|
{ push msg }
|
|
secondpass(p^.left^.right^.left);
|
|
emitpushreferenceaddr(exprasmlist,p^.left^.right^.left^.location.reference);
|
|
{ call }
|
|
emitcall('FPC_ASSERT',true);
|
|
emitlab(truelabel);
|
|
end;
|
|
freelabel(truelabel);
|
|
freelabel(falselabel);
|
|
truelabel:=otlabel;
|
|
falselabel:=oflabel;
|
|
end;
|
|
in_lo_word,
|
|
in_hi_word :
|
|
begin
|
|
secondpass(p^.left);
|
|
p^.location.loc:=LOC_REGISTER;
|
|
if p^.left^.location.loc<>LOC_REGISTER then
|
|
begin
|
|
if p^.left^.location.loc=LOC_CREGISTER then
|
|
begin
|
|
p^.location.register:=reg32toreg16(getregister32);
|
|
emit_reg_reg(A_MOV,S_W,p^.left^.location.register,
|
|
p^.location.register);
|
|
end
|
|
else
|
|
begin
|
|
del_reference(p^.left^.location.reference);
|
|
p^.location.register:=reg32toreg16(getregister32);
|
|
exprasmlist^.concat(new(pai386,op_ref_reg(A_MOV,S_W,newreference(p^.left^.location.reference),
|
|
p^.location.register)));
|
|
end;
|
|
end
|
|
else p^.location.register:=p^.left^.location.register;
|
|
if p^.inlinenumber=in_hi_word then
|
|
exprasmlist^.concat(new(pai386,op_const_reg(A_SHR,S_W,8,p^.location.register)));
|
|
p^.location.register:=reg16toreg8(p^.location.register);
|
|
end;
|
|
{$ifdef OLDHIGH}
|
|
in_high_x :
|
|
begin
|
|
if is_open_array(p^.left^.resulttype) or
|
|
is_open_string(p^.left^.resulttype) then
|
|
begin
|
|
secondpass(p^.left);
|
|
del_reference(p^.left^.location.reference);
|
|
p^.location.register:=getregister32;
|
|
r:=new_reference(highframepointer,highoffset+4);
|
|
exprasmlist^.concat(new(pai386,op_ref_reg(A_MOV,S_L,
|
|
r,p^.location.register)));
|
|
end
|
|
end;
|
|
{$endif OLDHIGH}
|
|
in_sizeof_x,
|
|
in_typeof_x :
|
|
begin
|
|
{$ifdef OLDHIGH}
|
|
{ sizeof(openarray) handling }
|
|
if (p^.inlinenumber=in_sizeof_x) and
|
|
(is_open_array(p^.left^.resulttype) or
|
|
is_open_string(p^.left^.resulttype)) then
|
|
begin
|
|
{ sizeof(openarray)=high(openarray)+1 }
|
|
secondpass(p^.left);
|
|
del_reference(p^.left^.location.reference);
|
|
p^.location.register:=getregister32;
|
|
r:=new_reference(highframepointer,highoffset+4);
|
|
exprasmlist^.concat(new(pai386,op_ref_reg(A_MOV,S_L,
|
|
r,p^.location.register)));
|
|
exprasmlist^.concat(new(pai386,op_reg(A_INC,S_L,
|
|
p^.location.register)));
|
|
if (p^.left^.resulttype^.deftype=arraydef) and
|
|
(parraydef(p^.left^.resulttype)^.elesize<>1) then
|
|
exprasmlist^.concat(new(pai386,op_const_reg(A_IMUL,S_L,
|
|
parraydef(p^.left^.resulttype)^.elesize,p^.location.register)));
|
|
end
|
|
else
|
|
{$endif OLDHIGH}
|
|
begin
|
|
{ for both cases load vmt }
|
|
if p^.left^.treetype=typen then
|
|
begin
|
|
p^.location.register:=getregister32;
|
|
exprasmlist^.concat(new(pai386,op_sym_ofs_reg(A_MOV,
|
|
S_L,newasmsymbol(pobjectdef(p^.left^.resulttype)^.vmt_mangledname),0,
|
|
p^.location.register)));
|
|
end
|
|
else
|
|
begin
|
|
secondpass(p^.left);
|
|
del_reference(p^.left^.location.reference);
|
|
p^.location.loc:=LOC_REGISTER;
|
|
p^.location.register:=getregister32;
|
|
{ load VMT pointer }
|
|
inc(p^.left^.location.reference.offset,
|
|
pobjectdef(p^.left^.resulttype)^.vmt_offset);
|
|
exprasmlist^.concat(new(pai386,op_ref_reg(A_MOV,S_L,
|
|
newreference(p^.left^.location.reference),
|
|
p^.location.register)));
|
|
end;
|
|
{ in sizeof load size }
|
|
if p^.inlinenumber=in_sizeof_x then
|
|
begin
|
|
new(r);
|
|
reset_reference(r^);
|
|
r^.base:=p^.location.register;
|
|
exprasmlist^.concat(new(pai386,op_ref_reg(A_MOV,S_L,r,
|
|
p^.location.register)));
|
|
end;
|
|
end;
|
|
end;
|
|
in_lo_long,
|
|
in_hi_long :
|
|
begin
|
|
secondpass(p^.left);
|
|
p^.location.loc:=LOC_REGISTER;
|
|
if p^.left^.location.loc<>LOC_REGISTER then
|
|
begin
|
|
if p^.left^.location.loc=LOC_CREGISTER then
|
|
begin
|
|
p^.location.register:=getregister32;
|
|
emit_reg_reg(A_MOV,S_L,p^.left^.location.register,
|
|
p^.location.register);
|
|
end
|
|
else
|
|
begin
|
|
del_reference(p^.left^.location.reference);
|
|
p^.location.register:=getregister32;
|
|
exprasmlist^.concat(new(pai386,op_ref_reg(A_MOV,S_L,newreference(p^.left^.location.reference),
|
|
p^.location.register)));
|
|
end;
|
|
end
|
|
else p^.location.register:=p^.left^.location.register;
|
|
if p^.inlinenumber=in_hi_long then
|
|
exprasmlist^.concat(new(pai386,op_const_reg(A_SHR,S_L,16,p^.location.register)));
|
|
p^.location.register:=reg32toreg16(p^.location.register);
|
|
end;
|
|
in_length_string :
|
|
begin
|
|
secondpass(p^.left);
|
|
set_location(p^.location,p^.left^.location);
|
|
{ length in ansi strings is at offset -8 }
|
|
if is_ansistring(p^.left^.resulttype) then
|
|
dec(p^.location.reference.offset,8)
|
|
{ char is always 1, so make it a constant value }
|
|
else if is_char(p^.left^.resulttype) then
|
|
begin
|
|
clear_location(p^.location);
|
|
p^.location.loc:=LOC_MEM;
|
|
p^.location.reference.is_immediate:=true;
|
|
p^.location.reference.offset:=1;
|
|
end;
|
|
end;
|
|
in_pred_x,
|
|
in_succ_x:
|
|
begin
|
|
secondpass(p^.left);
|
|
if not (cs_check_overflow in aktlocalswitches) then
|
|
if p^.inlinenumber=in_pred_x then
|
|
asmop:=A_DEC
|
|
else
|
|
asmop:=A_INC
|
|
else
|
|
if p^.inlinenumber=in_pred_x then
|
|
asmop:=A_SUB
|
|
else
|
|
asmop:=A_ADD;
|
|
case p^.resulttype^.size of
|
|
4 : opsize:=S_L;
|
|
2 : opsize:=S_W;
|
|
1 : opsize:=S_B;
|
|
else
|
|
internalerror(10080);
|
|
end;
|
|
p^.location.loc:=LOC_REGISTER;
|
|
if p^.left^.location.loc<>LOC_REGISTER then
|
|
begin
|
|
p^.location.register:=getregister32;
|
|
if (p^.resulttype^.size=2) then
|
|
p^.location.register:=reg32toreg16(p^.location.register);
|
|
if (p^.resulttype^.size=1) then
|
|
p^.location.register:=reg32toreg8(p^.location.register);
|
|
if p^.left^.location.loc=LOC_CREGISTER then
|
|
emit_reg_reg(A_MOV,opsize,p^.left^.location.register,
|
|
p^.location.register)
|
|
else
|
|
if p^.left^.location.loc=LOC_FLAGS then
|
|
emit_flag2reg(p^.left^.location.resflags,p^.location.register)
|
|
else
|
|
begin
|
|
del_reference(p^.left^.location.reference);
|
|
exprasmlist^.concat(new(pai386,op_ref_reg(A_MOV,opsize,newreference(p^.left^.location.reference),
|
|
p^.location.register)));
|
|
end;
|
|
end
|
|
else p^.location.register:=p^.left^.location.register;
|
|
|
|
if not (cs_check_overflow in aktlocalswitches) then
|
|
exprasmlist^.concat(new(pai386,op_reg(asmop,opsize,
|
|
p^.location.register)))
|
|
else
|
|
exprasmlist^.concat(new(pai386,op_const_reg(asmop,opsize,1,
|
|
p^.location.register)));
|
|
emitoverflowcheck(p);
|
|
emitrangecheck(p,p^.resulttype);
|
|
end;
|
|
in_dec_x,
|
|
in_inc_x :
|
|
begin
|
|
{ set defaults }
|
|
addvalue:=1;
|
|
addconstant:=true;
|
|
{ load first parameter, must be a reference }
|
|
secondpass(p^.left^.left);
|
|
case p^.left^.left^.resulttype^.deftype of
|
|
orddef,
|
|
enumdef : begin
|
|
case p^.left^.left^.resulttype^.size of
|
|
1 : opsize:=S_B;
|
|
2 : opsize:=S_W;
|
|
4 : opsize:=S_L;
|
|
end;
|
|
end;
|
|
pointerdef : begin
|
|
opsize:=S_L;
|
|
if porddef(ppointerdef(p^.left^.left^.resulttype)^.definition)=voiddef then
|
|
addvalue:=1
|
|
else
|
|
addvalue:=ppointerdef(p^.left^.left^.resulttype)^.definition^.savesize;
|
|
end;
|
|
else
|
|
internalerror(10081);
|
|
end;
|
|
{ second argument specified?, must be a s32bit in register }
|
|
if assigned(p^.left^.right) then
|
|
begin
|
|
secondpass(p^.left^.right^.left);
|
|
{ when constant, just multiply the addvalue }
|
|
if is_constintnode(p^.left^.right^.left) then
|
|
addvalue:=addvalue*get_ordinal_value(p^.left^.right^.left)
|
|
else
|
|
begin
|
|
case p^.left^.right^.left^.location.loc of
|
|
LOC_REGISTER,
|
|
LOC_CREGISTER : hregister:=p^.left^.right^.left^.location.register;
|
|
LOC_MEM,
|
|
LOC_REFERENCE : begin
|
|
del_reference(p^.left^.right^.left^.location.reference);
|
|
hregister:=getregister32;
|
|
exprasmlist^.concat(new(pai386,op_ref_reg(A_MOV,S_L,
|
|
newreference(p^.left^.right^.left^.location.reference),hregister)));
|
|
end;
|
|
else
|
|
internalerror(10082);
|
|
end;
|
|
{ insert multiply with addvalue if its >1 }
|
|
if addvalue>1 then
|
|
exprasmlist^.concat(new(pai386,op_const_reg(A_IMUL,opsize,
|
|
addvalue,hregister)));
|
|
addconstant:=false;
|
|
end;
|
|
end;
|
|
{ write the add instruction }
|
|
if addconstant then
|
|
begin
|
|
if (addvalue=1) and not(cs_check_overflow in aktlocalswitches) then
|
|
begin
|
|
if p^.left^.left^.location.loc=LOC_CREGISTER then
|
|
exprasmlist^.concat(new(pai386,op_reg(incdecop[p^.inlinenumber],opsize,
|
|
p^.left^.left^.location.register)))
|
|
else
|
|
exprasmlist^.concat(new(pai386,op_ref(incdecop[p^.inlinenumber],opsize,
|
|
newreference(p^.left^.left^.location.reference))))
|
|
end
|
|
else
|
|
begin
|
|
if p^.left^.left^.location.loc=LOC_CREGISTER then
|
|
exprasmlist^.concat(new(pai386,op_const_reg(addsubop[p^.inlinenumber],opsize,
|
|
addvalue,p^.left^.left^.location.register)))
|
|
else
|
|
exprasmlist^.concat(new(pai386,op_const_ref(addsubop[p^.inlinenumber],opsize,
|
|
addvalue,newreference(p^.left^.left^.location.reference))));
|
|
end
|
|
end
|
|
else
|
|
begin
|
|
{ BUG HERE : detected with nasm :
|
|
hregister is allways 32 bit
|
|
it should be converted to 16 or 8 bit depending on op_size PM }
|
|
{ still not perfect :
|
|
if hregister is already a 16 bit reg ?? PM }
|
|
case opsize of
|
|
S_B : hregister:=reg32toreg8(hregister);
|
|
S_W : hregister:=reg32toreg16(hregister);
|
|
end;
|
|
if p^.left^.left^.location.loc=LOC_CREGISTER then
|
|
exprasmlist^.concat(new(pai386,op_reg_reg(addsubop[p^.inlinenumber],opsize,
|
|
hregister,p^.left^.left^.location.register)))
|
|
else
|
|
exprasmlist^.concat(new(pai386,op_reg_ref(addsubop[p^.inlinenumber],opsize,
|
|
hregister,newreference(p^.left^.left^.location.reference))));
|
|
case opsize of
|
|
S_B : hregister:=reg8toreg32(hregister);
|
|
S_W : hregister:=reg16toreg32(hregister);
|
|
end;
|
|
ungetregister32(hregister);
|
|
end;
|
|
emitoverflowcheck(p^.left^.left);
|
|
emitrangecheck(p^.left^.left,p^.left^.left^.resulttype);
|
|
end;
|
|
in_assigned_x :
|
|
begin
|
|
secondpass(p^.left^.left);
|
|
p^.location.loc:=LOC_FLAGS;
|
|
if (p^.left^.left^.location.loc in [LOC_REGISTER,LOC_CREGISTER]) then
|
|
begin
|
|
exprasmlist^.concat(new(pai386,op_reg_reg(A_OR,S_L,
|
|
p^.left^.left^.location.register,
|
|
p^.left^.left^.location.register)));
|
|
ungetregister32(p^.left^.left^.location.register);
|
|
end
|
|
else
|
|
begin
|
|
exprasmlist^.concat(new(pai386,op_const_ref(A_CMP,S_L,0,
|
|
newreference(p^.left^.left^.location.reference))));
|
|
del_reference(p^.left^.left^.location.reference);
|
|
end;
|
|
p^.location.resflags:=F_NE;
|
|
end;
|
|
in_reset_typedfile,in_rewrite_typedfile :
|
|
begin
|
|
pushusedregisters(pushed,$ff);
|
|
exprasmlist^.concat(new(pai386,op_const(A_PUSH,S_L,pfiledef(p^.left^.resulttype)^.typed_as^.size)));
|
|
secondload(p^.left);
|
|
emitpushreferenceaddr(exprasmlist,p^.left^.location.reference);
|
|
if p^.inlinenumber=in_reset_typedfile then
|
|
emitcall('FPC_RESET_TYPED',true)
|
|
else
|
|
emitcall('FPC_REWRITE_TYPED',true);
|
|
popusedregisters(pushed);
|
|
end;
|
|
in_write_x :
|
|
handlereadwrite(false,false);
|
|
in_writeln_x :
|
|
handlereadwrite(false,true);
|
|
in_read_x :
|
|
handlereadwrite(true,false);
|
|
in_readln_x :
|
|
handlereadwrite(true,true);
|
|
in_str_x_string :
|
|
begin
|
|
handle_str;
|
|
maybe_loadesi;
|
|
end;
|
|
in_include_x_y,
|
|
in_exclude_x_y:
|
|
begin
|
|
secondpass(p^.left^.left);
|
|
if p^.left^.right^.left^.treetype=ordconstn then
|
|
begin
|
|
{ calculate bit position }
|
|
l:=1 shl (p^.left^.right^.left^.value mod 32);
|
|
|
|
{ determine operator }
|
|
if p^.inlinenumber=in_include_x_y then
|
|
asmop:=A_OR
|
|
else
|
|
begin
|
|
asmop:=A_AND;
|
|
l:=not(l);
|
|
end;
|
|
if (p^.left^.left^.location.loc=LOC_REFERENCE) then
|
|
begin
|
|
inc(p^.left^.left^.location.reference.offset,(p^.left^.right^.left^.value div 32)*4);
|
|
exprasmlist^.concat(new(pai386,op_const_ref(asmop,S_L,
|
|
l,newreference(p^.left^.left^.location.reference))));
|
|
del_reference(p^.left^.left^.location.reference);
|
|
end
|
|
else
|
|
{ LOC_CREGISTER }
|
|
exprasmlist^.concat(new(pai386,op_const_reg(asmop,S_L,
|
|
l,p^.left^.left^.location.register)));
|
|
end
|
|
else
|
|
begin
|
|
{ generate code for the element to set }
|
|
ispushed:=maybe_push(p^.left^.right^.left^.registers32,p^.left^.left);
|
|
secondpass(p^.left^.right^.left);
|
|
if ispushed then
|
|
restore(p^.left^.left);
|
|
{ determine asm operator }
|
|
if p^.inlinenumber=in_include_x_y then
|
|
asmop:=A_BTS
|
|
else
|
|
asmop:=A_BTR;
|
|
if psetdef(p^.left^.resulttype)^.settype=smallset then
|
|
begin
|
|
if p^.left^.right^.left^.location.loc in [LOC_CREGISTER,LOC_REGISTER] then
|
|
hregister:=p^.left^.right^.left^.location.register
|
|
else
|
|
begin
|
|
hregister:=R_EDI;
|
|
exprasmlist^.concat(new(pai386,op_ref_reg(A_MOV,S_L,
|
|
newreference(p^.left^.right^.left^.location.reference),R_EDI)));
|
|
end;
|
|
if (p^.left^.left^.location.loc=LOC_REFERENCE) then
|
|
exprasmlist^.concat(new(pai386,op_reg_ref(asmop,S_L,hregister,
|
|
newreference(p^.left^.right^.left^.location.reference))))
|
|
else
|
|
exprasmlist^.concat(new(pai386,op_reg_reg(asmop,S_L,hregister,
|
|
p^.left^.right^.left^.location.register)));
|
|
end
|
|
else
|
|
begin
|
|
pushsetelement(p^.left^.right^.left);
|
|
{ normset is allways a ref }
|
|
emitpushreferenceaddr(exprasmlist,
|
|
p^.left^.left^.location.reference);
|
|
if p^.inlinenumber=in_include_x_y then
|
|
emitcall('FPC_SET_SET_BYTE',true)
|
|
else
|
|
emitcall('FPC_SET_UNSET_BYTE',true);
|
|
{CGMessage(cg_e_include_not_implemented);}
|
|
end;
|
|
end;
|
|
end;
|
|
else internalerror(9);
|
|
end;
|
|
{ remove temp. objects, we don't generate them here }
|
|
removetemps(exprasmlist,temptoremove);
|
|
temptoremove^.clear;
|
|
{ reset pushedparasize }
|
|
pushedparasize:=oldpushedparasize;
|
|
end;
|
|
|
|
end.
|
|
{
|
|
$Log$
|
|
Revision 1.29 1999-02-25 21:02:27 peter
|
|
* ag386bin updates
|
|
+ coff writer
|
|
|
|
Revision 1.28 1999/02/22 02:15:11 peter
|
|
* updates for ag386bin
|
|
|
|
Revision 1.27 1999/02/17 14:21:40 pierre
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|
* unused local removed
|
|
|
|
Revision 1.26 1999/02/15 11:40:21 pierre
|
|
* pred/succ with overflow check must use ADD DEC !!
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|
|
|
Revision 1.25 1999/02/05 10:56:19 florian
|
|
* in some cases a writeln of temp. ansistrings cause a memory leak, fixed
|
|
|
|
Revision 1.24 1999/01/21 22:10:39 peter
|
|
* fixed array of const
|
|
* generic platform independent high() support
|
|
|
|
Revision 1.23 1999/01/06 12:23:29 florian
|
|
* str(...) for ansi/long and widestrings fixed
|
|
|
|
Revision 1.22 1998/12/11 23:36:07 florian
|
|
+ again more stuff for int64/qword:
|
|
- comparision operators
|
|
- code generation for: str, read(ln), write(ln)
|
|
|
|
Revision 1.21 1998/12/11 00:02:50 peter
|
|
+ globtype,tokens,version unit splitted from globals
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|
|
|
Revision 1.20 1998/11/27 14:50:32 peter
|
|
+ open strings, $P switch support
|
|
|
|
Revision 1.19 1998/11/26 13:10:40 peter
|
|
* new int - int conversion -dNEWCNV
|
|
* some function renamings
|
|
|
|
Revision 1.18 1998/11/24 17:04:27 peter
|
|
* fixed length(char) when char is a variable
|
|
|
|
Revision 1.17 1998/11/05 12:02:33 peter
|
|
* released useansistring
|
|
* removed -Sv, its now available in fpc modes
|
|
|
|
Revision 1.16 1998/10/22 17:11:13 pierre
|
|
+ terminated the include exclude implementation for i386
|
|
* enums inside records fixed
|
|
|
|
Revision 1.15 1998/10/21 15:12:50 pierre
|
|
* bug fix for IOCHECK inside a procedure with iocheck modifier
|
|
* removed the GPF for unexistant overloading
|
|
(firstcall was called with procedinition=nil !)
|
|
* changed typen to what Florian proposed
|
|
gentypenode(p : pdef) sets the typenodetype field
|
|
and resulttype is only set if inside bt_type block !
|
|
|
|
Revision 1.14 1998/10/20 08:06:40 pierre
|
|
* several memory corruptions due to double freemem solved
|
|
=> never use p^.loc.location:=p^.left^.loc.location;
|
|
+ finally I added now by default
|
|
that ra386dir translates global and unit symbols
|
|
+ added a first field in tsymtable and
|
|
a nextsym field in tsym
|
|
(this allows to obtain ordered type info for
|
|
records and objects in gdb !)
|
|
|
|
Revision 1.13 1998/10/13 16:50:02 pierre
|
|
* undid some changes of Peter that made the compiler wrong
|
|
for m68k (I had to reinsert some ifdefs)
|
|
* removed several memory leaks under m68k
|
|
* removed the meory leaks for assembler readers
|
|
* cross compiling shoud work again better
|
|
( crosscompiling sysamiga works
|
|
but as68k still complain about some code !)
|
|
|
|
Revision 1.12 1998/10/08 17:17:12 pierre
|
|
* current_module old scanner tagged as invalid if unit is recompiled
|
|
+ added ppheap for better info on tracegetmem of heaptrc
|
|
(adds line column and file index)
|
|
* several memory leaks removed ith help of heaptrc !!
|
|
|
|
Revision 1.11 1998/10/05 21:33:15 peter
|
|
* fixed 161,165,166,167,168
|
|
|
|
Revision 1.10 1998/10/05 12:32:44 peter
|
|
+ assert() support
|
|
|
|
Revision 1.8 1998/10/02 10:35:09 peter
|
|
* support for inc(pointer,value) which now increases with value instead
|
|
of 0*value :)
|
|
|
|
Revision 1.7 1998/09/21 08:45:07 pierre
|
|
+ added vmt_offset in tobjectdef.write for fututre use
|
|
(first steps to have objects without vmt if no virtual !!)
|
|
+ added fpu_used field for tabstractprocdef :
|
|
sets this level to 2 if the functions return with value in FPU
|
|
(is then set to correct value at parsing of implementation)
|
|
THIS MIGHT refuse some code with FPU expression too complex
|
|
that were accepted before and even in some cases
|
|
that don't overflow in fact
|
|
( like if f : float; is a forward that finally in implementation
|
|
only uses one fpu register !!)
|
|
Nevertheless I think that it will improve security on
|
|
FPU operations !!
|
|
* most other changes only for UseBrowser code
|
|
(added symtable references for record and objects)
|
|
local switch for refs to args and local of each function
|
|
(static symtable still missing)
|
|
UseBrowser still not stable and probably broken by
|
|
the definition hash array !!
|
|
|
|
Revision 1.6 1998/09/20 12:26:37 peter
|
|
* merged fixes
|
|
|
|
Revision 1.5 1998/09/17 09:42:15 peter
|
|
+ pass_2 for cg386
|
|
* Message() -> CGMessage() for pass_1/pass_2
|
|
|
|
Revision 1.4 1998/09/14 10:43:49 peter
|
|
* all internal RTL functions start with FPC_
|
|
|
|
Revision 1.3.2.1 1998/09/20 12:20:07 peter
|
|
* Fixed stack not on 4 byte boundary when doing a call
|
|
|
|
Revision 1.3 1998/09/05 23:03:57 florian
|
|
* some fixes to get -Or work:
|
|
- inc/dec didn't take care of CREGISTER
|
|
- register calculcation of inc/dec was wrong
|
|
- var/const parameters get now assigned 32 bit register, but
|
|
const parameters only if they are passed by reference !
|
|
|
|
Revision 1.2 1998/09/04 08:41:40 peter
|
|
* updated some error CGMessages
|
|
|
|
Revision 1.1 1998/08/31 12:22:14 peter
|
|
* secondinline moved to cg386inl
|
|
|
|
Revision 1.19 1998/08/31 08:52:03 peter
|
|
* fixed error 10 with succ() and pref()
|
|
|
|
Revision 1.18 1998/08/20 21:36:38 peter
|
|
* fixed 'with object do' bug
|
|
|
|
Revision 1.17 1998/08/19 16:07:36 jonas
|
|
* changed optimizer switches + cleanup of DestroyRefs in daopt386.pas
|
|
|
|
Revision 1.16 1998/08/18 09:24:36 pierre
|
|
* small warning position bug fixed
|
|
* support_mmx switches splitting was missing
|
|
* rhide error and warning output corrected
|
|
|
|
Revision 1.15 1998/08/13 11:00:09 peter
|
|
* fixed procedure<>procedure construct
|
|
|
|
Revision 1.14 1998/08/11 14:05:33 peter
|
|
* fixed sizeof(array of char)
|
|
|
|
Revision 1.13 1998/08/10 14:49:45 peter
|
|
+ localswitches, moduleswitches, globalswitches splitting
|
|
|
|
Revision 1.12 1998/07/30 13:30:31 florian
|
|
* final implemenation of exception support, maybe it needs
|
|
some fixes :)
|
|
|
|
Revision 1.11 1998/07/24 22:16:52 florian
|
|
* internal error 10 together with array access fixed. I hope
|
|
that's the final fix.
|
|
|
|
Revision 1.10 1998/07/18 22:54:23 florian
|
|
* some ansi/wide/longstring support fixed:
|
|
o parameter passing
|
|
o returning as result from functions
|
|
|
|
Revision 1.9 1998/07/07 17:40:37 peter
|
|
* packrecords 4 works
|
|
* word aligning of parameters
|
|
|
|
Revision 1.8 1998/07/06 15:51:15 michael
|
|
Added length checking for string reading
|
|
|
|
Revision 1.7 1998/07/06 14:19:51 michael
|
|
+ Added calls for reading/writing ansistrings
|
|
|
|
Revision 1.6 1998/07/01 15:28:48 peter
|
|
+ better writeln/readln handling, now 100% like tp7
|
|
|
|
Revision 1.5 1998/06/25 14:04:17 peter
|
|
+ internal inc/dec
|
|
|
|
Revision 1.4 1998/06/25 08:48:06 florian
|
|
* first version of rtti support
|
|
|
|
Revision 1.3 1998/06/09 16:01:33 pierre
|
|
+ added procedure directive parsing for procvars
|
|
(accepted are popstack cdecl and pascal)
|
|
+ added C vars with the following syntax
|
|
var C calias 'true_c_name';(can be followed by external)
|
|
reason is that you must add the Cprefix
|
|
|
|
which is target dependent
|
|
|
|
Revision 1.2 1998/06/08 13:13:29 pierre
|
|
+ temporary variables now in temp_gen.pas unit
|
|
because it is processor independent
|
|
* mppc68k.bat modified to undefine i386 and support_mmx
|
|
(which are defaults for i386)
|
|
|
|
Revision 1.1 1998/06/05 17:44:10 peter
|
|
* splitted cgi386
|
|
|
|
}
|
|
|