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https://gitlab.com/freepascal.org/fpc/source.git
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1495 lines
70 KiB
ObjectPascal
1495 lines
70 KiB
ObjectPascal
{
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$Id$
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Copyright (c) 1993-98 by Florian Klaempfl
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Generate i386 assembler for in call 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 cg386cal;
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interface
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uses
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symtable,tree;
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procedure secondcallparan(var p : ptree;defcoll : pdefcoll;
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push_from_left_to_right,inlined : boolean;para_offset : longint);
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procedure secondcalln(var p : ptree);
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procedure secondprocinline(var p : ptree);
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implementation
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uses
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cobjects,verbose,globals,systems,
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aasm,i386,types,
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cgi386,cgai386,temp_gen,tgeni386,hcodegen,
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cg386ld;
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{*****************************************************************************
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SecondCallParaN
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*****************************************************************************}
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{ save the size of pushed parameter }
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var
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pushedparasize : longint;
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procedure secondcallparan(var p : ptree;defcoll : pdefcoll;
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push_from_left_to_right,inlined : boolean;para_offset : longint);
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procedure maybe_push_open_array_high;
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var
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r : preference;
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begin
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{ open array ? }
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{ defcoll^.data can be nil for read/write }
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if assigned(defcoll^.data) and
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is_open_array(defcoll^.data) then
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begin
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inc(pushedparasize,4);
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{ push high }
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if is_open_array(p^.left^.resulttype) then
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begin
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r:=new_reference(highframepointer,highoffset+4);
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if inlined then
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begin
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exprasmlist^.concat(new(pai386,op_ref_reg(A_MOV,S_L,r,R_EDI)));
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r:=new_reference(procinfo.framepointer,para_offset-pushedparasize);
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exprasmlist^.concat(new(pai386,op_reg_ref(A_MOV,S_L,R_EDI,r)));
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end
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else
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exprasmlist^.concat(new(pai386,op_ref(A_PUSH,S_L,r)));
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end
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else
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begin
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if inlined then
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begin
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r:=new_reference(procinfo.framepointer,para_offset-pushedparasize);
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exprasmlist^.concat(new(pai386,op_const_ref(A_MOV,S_L,
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parraydef(p^.left^.resulttype)^.highrange-
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parraydef(p^.left^.resulttype)^.lowrange,r)));
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end
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else
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push_int(parraydef(p^.left^.resulttype)^.highrange-
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parraydef(p^.left^.resulttype)^.lowrange);
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end;
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end;
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end;
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var
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size : longint;
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stackref : treference;
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otlabel,hlabel,oflabel : plabel;
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{ temporary variables: }
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tempdeftype : tdeftype;
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tempreference : treference;
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r : preference;
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s : topsize;
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op : tasmop;
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begin
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{ push from left to right if specified }
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if push_from_left_to_right and assigned(p^.right) then
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secondcallparan(p^.right,defcoll^.next,push_from_left_to_right,inlined,para_offset);
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otlabel:=truelabel;
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oflabel:=falselabel;
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getlabel(truelabel);
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getlabel(falselabel);
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secondpass(p^.left);
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{ in codegen.handleread.. defcoll^.data is set to nil }
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if assigned(defcoll^.data) and
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(defcoll^.data^.deftype=formaldef) then
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begin
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{ allow @var }
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inc(pushedparasize,4);
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if p^.left^.treetype=addrn then
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begin
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{ always a register }
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if inlined then
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begin
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r:=new_reference(procinfo.framepointer,para_offset-pushedparasize);
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exprasmlist^.concat(new(pai386,op_reg_ref(A_MOV,S_L,
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p^.left^.location.register,r)));
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end
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else
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exprasmlist^.concat(new(pai386,op_reg(A_PUSH,S_L,p^.left^.location.register)));
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ungetregister32(p^.left^.location.register);
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end
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else
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begin
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if not(p^.left^.location.loc in [LOC_MEM,LOC_REFERENCE]) then
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Message(type_e_mismatch)
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else
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begin
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if inlined then
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begin
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exprasmlist^.concat(new(pai386,op_ref_reg(A_LEA,S_L,
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newreference(p^.left^.location.reference),R_EDI)));
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r:=new_reference(procinfo.framepointer,para_offset-pushedparasize);
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exprasmlist^.concat(new(pai386,op_reg_ref(A_MOV,S_L,R_EDI,r)));
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end
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else
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emitpushreferenceaddr(exprasmlist,p^.left^.location.reference);
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del_reference(p^.left^.location.reference);
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end;
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end;
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end
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{ handle call by reference parameter }
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else if (defcoll^.paratyp=vs_var) then
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begin
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if (p^.left^.location.loc<>LOC_REFERENCE) then
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Message(cg_e_var_must_be_reference);
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maybe_push_open_array_high;
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inc(pushedparasize,4);
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if inlined then
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begin
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exprasmlist^.concat(new(pai386,op_ref_reg(A_LEA,S_L,
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newreference(p^.left^.location.reference),R_EDI)));
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r:=new_reference(procinfo.framepointer,para_offset-pushedparasize);
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exprasmlist^.concat(new(pai386,op_reg_ref(A_MOV,S_L,R_EDI,r)));
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end
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else
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emitpushreferenceaddr(exprasmlist,p^.left^.location.reference);
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del_reference(p^.left^.location.reference);
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end
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else
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begin
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tempdeftype:=p^.resulttype^.deftype;
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if tempdeftype=filedef then
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Message(cg_e_file_must_call_by_reference);
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if (defcoll^.paratyp=vs_const) and
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dont_copy_const_param(p^.resulttype) then
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begin
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maybe_push_open_array_high;
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inc(pushedparasize,4);
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if inlined then
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begin
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exprasmlist^.concat(new(pai386,op_ref_reg(A_LEA,S_L,
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newreference(p^.left^.location.reference),R_EDI)));
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r:=new_reference(procinfo.framepointer,para_offset-pushedparasize);
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exprasmlist^.concat(new(pai386,op_reg_ref(A_MOV,S_L,
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R_EDI,r)));
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end
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else
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emitpushreferenceaddr(exprasmlist,p^.left^.location.reference);
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del_reference(p^.left^.location.reference);
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end
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else
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case p^.left^.location.loc of
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LOC_REGISTER,
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LOC_CREGISTER:
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begin
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case p^.left^.location.register of
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R_EAX,R_EBX,R_ECX,R_EDX,R_ESI,
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R_EDI,R_ESP,R_EBP :
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begin
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inc(pushedparasize,4);
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if inlined then
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begin
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r:=new_reference(procinfo.framepointer,para_offset-pushedparasize);
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exprasmlist^.concat(new(pai386,op_reg_ref(A_MOV,S_L,
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p^.left^.location.register,r)));
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end
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else
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exprasmlist^.concat(new(pai386,op_reg(A_PUSH,S_L,p^.left^.location.register)));
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ungetregister32(p^.left^.location.register);
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end;
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R_AX,R_BX,R_CX,R_DX,R_SI,R_DI:
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begin
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inc(pushedparasize,2);
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if inlined then
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begin
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r:=new_reference(procinfo.framepointer,para_offset-pushedparasize);
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exprasmlist^.concat(new(pai386,op_reg_ref(A_MOV,S_W,
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p^.left^.location.register,r)));
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end
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else
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exprasmlist^.concat(new(pai386,op_reg(A_PUSH,S_W,p^.left^.location.register)));
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ungetregister32(reg16toreg32(p^.left^.location.register));
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end;
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R_AL,R_BL,R_CL,R_DL:
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begin
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inc(pushedparasize,2);
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{ we must push always 16 bit }
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if inlined then
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begin
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r:=new_reference(procinfo.framepointer,para_offset-pushedparasize);
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exprasmlist^.concat(new(pai386,op_reg_ref(A_MOV,S_L,
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reg8toreg16(p^.left^.location.register),r)));
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end
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else
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exprasmlist^.concat(new(pai386,op_reg(A_PUSH,S_W,
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reg8toreg16(p^.left^.location.register))));
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ungetregister32(reg8toreg32(p^.left^.location.register));
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end;
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end;
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end;
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LOC_FPU:
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begin
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size:=pfloatdef(p^.left^.resulttype)^.size;
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inc(pushedparasize,size); { must be before for inlined }
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if not inlined then
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exprasmlist^.concat(new(pai386,op_const_reg(A_SUB,S_L,size,R_ESP)));
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r:=new_reference(R_ESP,0);
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floatstoreops(pfloatdef(p^.left^.resulttype)^.typ,op,s);
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{ this is the easiest case for inlined !! }
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if inlined then
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begin
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r^.base:=procinfo.framepointer;
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r^.offset:=para_offset-pushedparasize;
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end;
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exprasmlist^.concat(new(pai386,op_ref(op,s,r)));
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end;
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LOC_REFERENCE,LOC_MEM:
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begin
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tempreference:=p^.left^.location.reference;
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del_reference(p^.left^.location.reference);
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case p^.resulttype^.deftype of
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enumdef,
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orddef :
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begin
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case p^.resulttype^.size of
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4 : begin
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inc(pushedparasize,4);
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if inlined then
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begin
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exprasmlist^.concat(new(pai386,op_ref_reg(A_MOV,S_L,
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newreference(tempreference),R_EDI)));
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r:=new_reference(procinfo.framepointer,para_offset-pushedparasize);
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exprasmlist^.concat(new(pai386,op_reg_ref(A_MOV,S_L,R_EDI,r)));
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end
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else
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emit_push_mem(tempreference);
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end;
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1,2 : begin
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inc(pushedparasize,2);
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if inlined then
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begin
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exprasmlist^.concat(new(pai386,op_ref_reg(A_MOV,S_W,
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newreference(tempreference),R_DI)));
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r:=new_reference(procinfo.framepointer,para_offset-pushedparasize);
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exprasmlist^.concat(new(pai386,op_reg_ref(A_MOV,S_W,R_DI,r)));
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end
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else
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exprasmlist^.concat(new(pai386,op_ref(A_PUSH,S_W,
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newreference(tempreference))));
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end;
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else
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internalerror(234231);
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end;
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end;
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floatdef :
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begin
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case pfloatdef(p^.resulttype)^.typ of
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f32bit,
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s32real :
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begin
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inc(pushedparasize,4);
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if inlined then
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begin
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exprasmlist^.concat(new(pai386,op_ref_reg(A_MOV,S_L,
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newreference(tempreference),R_EDI)));
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r:=new_reference(procinfo.framepointer,para_offset-pushedparasize);
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exprasmlist^.concat(new(pai386,op_reg_ref(A_MOV,S_L,R_EDI,r)));
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end
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else
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emit_push_mem(tempreference);
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end;
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s64real,
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s64bit :
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begin
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inc(pushedparasize,4);
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inc(tempreference.offset,4);
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if inlined then
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begin
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exprasmlist^.concat(new(pai386,op_ref_reg(A_MOV,S_L,
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newreference(tempreference),R_EDI)));
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r:=new_reference(procinfo.framepointer,para_offset-pushedparasize);
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exprasmlist^.concat(new(pai386,op_reg_ref(A_MOV,S_L,R_EDI,r)));
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end
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else
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emit_push_mem(tempreference);
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inc(pushedparasize,4);
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dec(tempreference.offset,4);
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if inlined then
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begin
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exprasmlist^.concat(new(pai386,op_ref_reg(A_MOV,S_L,
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newreference(tempreference),R_EDI)));
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r:=new_reference(procinfo.framepointer,para_offset-pushedparasize);
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exprasmlist^.concat(new(pai386,op_reg_ref(A_MOV,S_L,R_EDI,r)));
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end
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else
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emit_push_mem(tempreference);
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end;
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s80real :
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begin
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inc(pushedparasize,4);
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inc(tempreference.offset,6);
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if inlined then
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begin
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exprasmlist^.concat(new(pai386,op_ref_reg(A_MOV,S_L,
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newreference(tempreference),R_EDI)));
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r:=new_reference(procinfo.framepointer,para_offset-pushedparasize);
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exprasmlist^.concat(new(pai386,op_reg_ref(A_MOV,S_L,R_EDI,r)));
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end
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else
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emit_push_mem(tempreference);
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dec(tempreference.offset,4);
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inc(pushedparasize,4);
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if inlined then
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begin
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exprasmlist^.concat(new(pai386,op_ref_reg(A_MOV,S_L,
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newreference(tempreference),R_EDI)));
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r:=new_reference(procinfo.framepointer,para_offset-pushedparasize);
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exprasmlist^.concat(new(pai386,op_reg_ref(A_MOV,S_L,R_EDI,r)));
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end
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else
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emit_push_mem(tempreference);
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dec(tempreference.offset,2);
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inc(pushedparasize,2);
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if inlined then
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begin
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exprasmlist^.concat(new(pai386,op_ref_reg(A_MOV,S_W,
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newreference(tempreference),R_DI)));
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r:=new_reference(procinfo.framepointer,para_offset-pushedparasize);
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exprasmlist^.concat(new(pai386,op_reg_ref(A_MOV,S_W,R_DI,r)));
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end
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else
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exprasmlist^.concat(new(pai386,op_ref(A_PUSH,S_W,
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newreference(tempreference))));
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end;
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end;
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end;
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pointerdef,procvardef,
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classrefdef:
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begin
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inc(pushedparasize,4);
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if inlined then
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begin
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exprasmlist^.concat(new(pai386,op_ref_reg(A_MOV,S_L,
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newreference(tempreference),R_EDI)));
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r:=new_reference(procinfo.framepointer,para_offset-pushedparasize);
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exprasmlist^.concat(new(pai386,op_reg_ref(A_MOV,S_L,R_EDI,r)));
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end
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else
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emit_push_mem(tempreference);
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end;
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arraydef,recorddef,stringdef,setdef,objectdef :
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begin
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{ 32 bit type set ? }
|
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if is_widestring(p^.resulttype) or
|
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is_ansistring(p^.resulttype) or
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((p^.resulttype^.deftype=setdef) and
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(psetdef(p^.resulttype)^.settype=smallset)) then
|
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begin
|
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inc(pushedparasize,4);
|
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if inlined then
|
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begin
|
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r:=new_reference(procinfo.framepointer,para_offset-pushedparasize);
|
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concatcopy(tempreference,r^,4,false);
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end
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else
|
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emit_push_mem(tempreference);
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end
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{ call by value open array ? }
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else
|
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if (p^.resulttype^.deftype=arraydef) and
|
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assigned(defcoll^.data) and
|
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is_open_array(defcoll^.data) then
|
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begin
|
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{ first, push high }
|
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maybe_push_open_array_high;
|
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inc(pushedparasize,4);
|
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if inlined then
|
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begin
|
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exprasmlist^.concat(new(pai386,op_ref_reg(A_LEA,S_L,
|
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newreference(p^.left^.location.reference),R_EDI)));
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r:=new_reference(procinfo.framepointer,para_offset-pushedparasize);
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exprasmlist^.concat(new(pai386,op_reg_ref(A_MOV,S_L,
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R_EDI,r)));
|
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end
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else
|
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emitpushreferenceaddr(exprasmlist,p^.left^.location.reference);
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end
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else
|
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begin
|
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size:=p^.resulttype^.size;
|
|
{ Word Alignment }
|
|
if Odd(size) then
|
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inc(size);
|
|
{ create stack space }
|
|
if not inlined then
|
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exprasmlist^.concat(new(pai386,op_const_reg(A_SUB,S_L,size,R_ESP)));
|
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inc(pushedparasize,size);
|
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{ create stack reference }
|
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stackref.symbol := nil;
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if not inlined then
|
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begin
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clear_reference(stackref);
|
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stackref.base:=R_ESP;
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end
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else
|
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begin
|
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clear_reference(stackref);
|
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stackref.base:=procinfo.framepointer;
|
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stackref.offset:=para_offset-pushedparasize;
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end;
|
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{ generate copy }
|
|
if is_shortstring(p^.resulttype) then
|
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begin
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copystring(stackref,p^.left^.location.reference,
|
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pstringdef(p^.resulttype)^.len);
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end
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|
else
|
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begin
|
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concatcopy(p^.left^.location.reference,
|
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stackref,p^.resulttype^.size,true);
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end;
|
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end;
|
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end;
|
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else
|
|
Message(cg_e_illegal_expression);
|
|
end;
|
|
end;
|
|
LOC_JUMP:
|
|
begin
|
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getlabel(hlabel);
|
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inc(pushedparasize,2);
|
|
emitl(A_LABEL,truelabel);
|
|
if inlined then
|
|
begin
|
|
r:=new_reference(procinfo.framepointer,para_offset-pushedparasize);
|
|
exprasmlist^.concat(new(pai386,op_const_ref(A_MOV,S_W,1,r)));
|
|
end
|
|
else
|
|
exprasmlist^.concat(new(pai386,op_const(A_PUSH,S_W,1)));
|
|
emitl(A_JMP,hlabel);
|
|
emitl(A_LABEL,falselabel);
|
|
if inlined then
|
|
begin
|
|
r:=new_reference(procinfo.framepointer,para_offset-pushedparasize);
|
|
exprasmlist^.concat(new(pai386,op_const_ref(A_MOV,S_W,0,r)));
|
|
end
|
|
else
|
|
exprasmlist^.concat(new(pai386,op_const(A_PUSH,S_W,0)));
|
|
emitl(A_LABEL,hlabel);
|
|
end;
|
|
LOC_FLAGS:
|
|
begin
|
|
if not(R_EAX in unused) then
|
|
exprasmlist^.concat(new(pai386,op_reg_reg(A_MOV,S_L,R_EAX,R_EDI)));
|
|
|
|
{ clear full EAX is faster }
|
|
{ but dont you set the equal flag ? }
|
|
{exprasmlist^.concat(new(pai386,op_reg_reg(A_XOR,S_L,R_EAX,R_EAX)));}
|
|
exprasmlist^.concat(new(pai386,op_reg(flag_2_set[p^.left^.location.resflags],S_B,
|
|
R_AL)));
|
|
exprasmlist^.concat(new(pai386,op_reg_reg(A_MOVZX,S_BW,R_AL,R_AX)));
|
|
{exprasmlist^.concat(new(pai386,op_reg_reg(A_XOR,S_L,R_EAX,R_EAX)));}
|
|
inc(pushedparasize,2);
|
|
if inlined then
|
|
begin
|
|
r:=new_reference(procinfo.framepointer,para_offset-pushedparasize);
|
|
exprasmlist^.concat(new(pai386,op_reg_ref(A_MOV,S_W,
|
|
R_AX,r)));
|
|
end
|
|
else
|
|
exprasmlist^.concat(new(pai386,op_reg(A_PUSH,S_W,R_AX)));
|
|
{ this is also false !!!
|
|
if not(R_EAX in unused) then
|
|
exprasmlist^.concat(new(pai386,op_reg_reg(A_MOV,S_L,R_EAX,R_EDI)));}
|
|
if not(R_EAX in unused) then
|
|
exprasmlist^.concat(new(pai386,op_reg_reg(A_MOV,S_L,R_EDI,R_EAX)));
|
|
end;
|
|
{$ifdef SUPPORT_MMX}
|
|
LOC_MMXREGISTER,
|
|
LOC_CMMXREGISTER:
|
|
begin
|
|
inc(pushedparasize,8); { was missing !!! (PM) }
|
|
exprasmlist^.concat(new(pai386,op_const_reg(
|
|
A_SUB,S_L,8,R_ESP)));
|
|
if inlined then
|
|
begin
|
|
r:=new_reference(procinfo.framepointer,para_offset-pushedparasize);
|
|
exprasmlist^.concat(new(pai386,op_reg_ref(A_MOVQ,S_NO,
|
|
p^.left^.location.register,r)));
|
|
end
|
|
else
|
|
begin
|
|
r:=new_reference(R_ESP,0);
|
|
exprasmlist^.concat(new(pai386,op_reg_ref(
|
|
A_MOVQ,S_NO,p^.left^.location.register,r)));
|
|
end;
|
|
end;
|
|
{$endif SUPPORT_MMX}
|
|
end;
|
|
end;
|
|
truelabel:=otlabel;
|
|
falselabel:=oflabel;
|
|
{ push from right to left }
|
|
if not push_from_left_to_right and assigned(p^.right) then
|
|
secondcallparan(p^.right,defcoll^.next,push_from_left_to_right,inlined,para_offset);
|
|
end;
|
|
|
|
|
|
{*****************************************************************************
|
|
SecondCallN
|
|
*****************************************************************************}
|
|
|
|
procedure secondcalln(var p : ptree);
|
|
var
|
|
unusedregisters : tregisterset;
|
|
pushed : tpushed;
|
|
funcretref : treference;
|
|
hregister : tregister;
|
|
oldpushedparasize : longint;
|
|
{ true if ESI must be loaded again after the subroutine }
|
|
loadesi : boolean;
|
|
{ true if a virtual method must be called directly }
|
|
no_virtual_call : boolean;
|
|
{ true if we produce a con- or destrutor in a call }
|
|
is_con_or_destructor : boolean;
|
|
{ true if a constructor is called again }
|
|
extended_new : boolean;
|
|
{ adress returned from an I/O-error }
|
|
iolabel : plabel;
|
|
{ lexlevel count }
|
|
i : longint;
|
|
{ help reference pointer }
|
|
r : preference;
|
|
pp,params : ptree;
|
|
inlined : boolean;
|
|
inlinecode : ptree;
|
|
para_offset : longint;
|
|
{ instruction for alignement correction }
|
|
corr : pai386;
|
|
{ we must pop this size also after !! }
|
|
must_pop : boolean;
|
|
pop_size : longint;
|
|
|
|
label
|
|
dont_call;
|
|
|
|
begin
|
|
extended_new:=false;
|
|
iolabel:=nil;
|
|
inlinecode:=nil;
|
|
inlined:=false;
|
|
loadesi:=true;
|
|
no_virtual_call:=false;
|
|
unusedregisters:=unused;
|
|
|
|
if not assigned(p^.procdefinition) then
|
|
exit;
|
|
if (p^.procdefinition^.options and poinline)<>0 then
|
|
begin
|
|
inlined:=true;
|
|
inlinecode:=p^.right;
|
|
{ set it to the same lexical level }
|
|
p^.procdefinition^.parast^.symtablelevel:=
|
|
aktprocsym^.definition^.parast^.symtablelevel;
|
|
if assigned(p^.left) then
|
|
inlinecode^.para_offset:=
|
|
gettempofsizepersistant(inlinecode^.para_size);
|
|
p^.procdefinition^.parast^.call_offset:=
|
|
inlinecode^.para_offset;
|
|
{$ifdef extdebug}
|
|
Comment(V_debug,
|
|
'inlined parasymtable is at offset '
|
|
+tostr(p^.procdefinition^.parast^.call_offset));
|
|
exprasmlist^.concat(new(pai_asm_comment,init(
|
|
strpnew('inlined parasymtable is at offset '
|
|
+tostr(p^.procdefinition^.parast^.call_offset)))));
|
|
{$endif extdebug}
|
|
p^.right:=nil;
|
|
{ disable further inlining of the same proc
|
|
in the args }
|
|
p^.procdefinition^.options:=p^.procdefinition^.options and (not poinline);
|
|
end;
|
|
{ only if no proc var }
|
|
if not(assigned(p^.right)) then
|
|
is_con_or_destructor:=((p^.procdefinition^.options and poconstructor)<>0)
|
|
or ((p^.procdefinition^.options and podestructor)<>0);
|
|
{ proc variables destroy all registers }
|
|
if (p^.right=nil) and
|
|
{ virtual methods too }
|
|
((p^.procdefinition^.options and povirtualmethod)=0) then
|
|
begin
|
|
if ((p^.procdefinition^.options and poiocheck)<>0) and
|
|
(cs_check_io in aktlocalswitches) then
|
|
begin
|
|
getlabel(iolabel);
|
|
emitl(A_LABEL,iolabel);
|
|
end
|
|
else
|
|
iolabel:=nil;
|
|
|
|
{ save all used registers }
|
|
pushusedregisters(pushed,p^.procdefinition^.usedregisters);
|
|
|
|
{ give used registers through }
|
|
usedinproc:=usedinproc or p^.procdefinition^.usedregisters;
|
|
end
|
|
else
|
|
begin
|
|
pushusedregisters(pushed,$ff);
|
|
usedinproc:=$ff;
|
|
{ no IO check for methods and procedure variables }
|
|
iolabel:=nil;
|
|
end;
|
|
|
|
{ generate the code for the parameter and push them }
|
|
oldpushedparasize:=pushedparasize;
|
|
pushedparasize:=0;
|
|
corr:=new(pai386,op_const_reg(A_SUB,S_L,0,R_ESP));
|
|
exprasmlist^.concat(corr);
|
|
if (p^.resulttype<>pdef(voiddef)) and
|
|
ret_in_param(p^.resulttype) then
|
|
begin
|
|
funcretref.symbol:=nil;
|
|
{$ifdef test_dest_loc}
|
|
if dest_loc_known and (dest_loc_tree=p) and
|
|
(dest_loc.loc in [LOC_REFERENCE,LOC_MEM]) then
|
|
begin
|
|
funcretref:=dest_loc.reference;
|
|
if assigned(dest_loc.reference.symbol) then
|
|
funcretref.symbol:=stringdup(dest_loc.reference.symbol^);
|
|
in_dest_loc:=true;
|
|
end
|
|
else
|
|
{$endif test_dest_loc}
|
|
if inlined then
|
|
begin
|
|
reset_reference(funcretref);
|
|
funcretref.offset:=gettempofsizepersistant(p^.procdefinition^.retdef^.size);
|
|
funcretref.base:=procinfo.framepointer;
|
|
end
|
|
else
|
|
gettempofsizereference(p^.procdefinition^.retdef^.size,funcretref);
|
|
end;
|
|
if assigned(p^.left) then
|
|
begin
|
|
pushedparasize:=0;
|
|
{ be found elsewhere }
|
|
if inlined then
|
|
para_offset:=p^.procdefinition^.parast^.call_offset+
|
|
p^.procdefinition^.parast^.datasize
|
|
else
|
|
para_offset:=0;
|
|
if assigned(p^.right) then
|
|
secondcallparan(p^.left,pprocvardef(p^.right^.resulttype)^.para1,
|
|
(p^.procdefinition^.options and poleftright)<>0,inlined,para_offset)
|
|
else
|
|
secondcallparan(p^.left,p^.procdefinition^.para1,
|
|
(p^.procdefinition^.options and poleftright)<>0,inlined,para_offset);
|
|
end;
|
|
params:=p^.left;
|
|
p^.left:=nil;
|
|
if inlined then
|
|
inlinecode^.retoffset:=gettempofsizepersistant(4);
|
|
if ret_in_param(p^.resulttype) then
|
|
begin
|
|
inc(pushedparasize,4);
|
|
if inlined then
|
|
begin
|
|
exprasmlist^.concat(new(pai386,op_ref_reg(A_LEA,S_L,
|
|
newreference(funcretref),R_EDI)));
|
|
r:=new_reference(procinfo.framepointer,inlinecode^.retoffset);
|
|
exprasmlist^.concat(new(pai386,op_reg_ref(A_MOV,S_L,
|
|
R_EDI,r)));
|
|
end
|
|
else
|
|
emitpushreferenceaddr(exprasmlist,funcretref);
|
|
end;
|
|
{ procedure variable ? }
|
|
if (p^.right=nil) then
|
|
begin
|
|
{ overloaded operator have no symtable }
|
|
{ push self }
|
|
if assigned(p^.symtable) and
|
|
(p^.symtable^.symtabletype=withsymtable) then
|
|
begin
|
|
{ dirty trick to avoid the secondcall below }
|
|
p^.methodpointer:=genzeronode(callparan);
|
|
p^.methodpointer^.location.loc:=LOC_REGISTER;
|
|
p^.methodpointer^.location.register:=R_ESI;
|
|
p^.methodpointer^.resulttype:=p^.symtable^.defowner;
|
|
{ make a reference }
|
|
new(r);
|
|
reset_reference(r^);
|
|
r^.offset:=p^.symtable^.datasize;
|
|
r^.base:=procinfo.framepointer;
|
|
exprasmlist^.concat(new(pai386,op_ref_reg(A_MOV,S_L,r,R_ESI)));
|
|
end;
|
|
|
|
{ push self }
|
|
if assigned(p^.symtable) and
|
|
((p^.symtable^.symtabletype=objectsymtable) or
|
|
(p^.symtable^.symtabletype=withsymtable)) then
|
|
begin
|
|
if assigned(p^.methodpointer) then
|
|
begin
|
|
{
|
|
if p^.methodpointer^.resulttype=classrefdef then
|
|
begin
|
|
two possibilities:
|
|
1. constructor
|
|
2. class method
|
|
|
|
end
|
|
else }
|
|
begin
|
|
case p^.methodpointer^.treetype of
|
|
typen:
|
|
begin
|
|
{ direct call to inherited method }
|
|
if (p^.procdefinition^.options and poabstractmethod)<>0 then
|
|
begin
|
|
Message(cg_e_cant_call_abstract_method);
|
|
goto dont_call;
|
|
end;
|
|
{ generate no virtual call }
|
|
no_virtual_call:=true;
|
|
|
|
if (p^.symtableprocentry^.properties and sp_static)<>0 then
|
|
begin
|
|
{ well lets put the VMT address directly into ESI }
|
|
{ it is kind of dirty but that is the simplest }
|
|
{ way to accept virtual static functions (PM) }
|
|
loadesi:=true;
|
|
exprasmlist^.concat(new(pai386,op_csymbol_reg(A_MOV,S_L,
|
|
newcsymbol(pobjectdef(p^.methodpointer^.resulttype)^.vmt_mangledname,0),R_ESI)));
|
|
maybe_concat_external(pobjectdef(p^.methodpointer^.resulttype)^.owner,
|
|
pobjectdef(p^.methodpointer^.resulttype)^.vmt_mangledname);
|
|
exprasmlist^.concat(new(pai386,op_reg(A_PUSH,S_L,R_ESI)));
|
|
end
|
|
else
|
|
{ this is a member call, so ESI isn't modfied }
|
|
loadesi:=false;
|
|
if not(is_con_or_destructor and
|
|
pobjectdef(p^.methodpointer^.resulttype)^.isclass and
|
|
assigned(aktprocsym) and
|
|
((aktprocsym^.definition^.options and
|
|
(poconstructor or podestructor))<>0)) then
|
|
exprasmlist^.concat(new(pai386,op_reg(A_PUSH,S_L,R_ESI)));
|
|
{ if an inherited con- or destructor should be }
|
|
{ called in a con- or destructor then a warning }
|
|
{ will be made }
|
|
{ con- and destructors need a pointer to the vmt }
|
|
if is_con_or_destructor and
|
|
not(pobjectdef(p^.methodpointer^.resulttype)^.isclass) and
|
|
assigned(aktprocsym) then
|
|
begin
|
|
if not ((aktprocsym^.definition^.options
|
|
and (poconstructor or podestructor))<>0) then
|
|
|
|
Message(cg_w_member_cd_call_from_method);
|
|
end;
|
|
if is_con_or_destructor then
|
|
push_int(0)
|
|
end;
|
|
hnewn:
|
|
begin
|
|
{ extended syntax of new }
|
|
{ ESI must be zero }
|
|
exprasmlist^.concat(new(pai386,op_reg_reg(A_XOR,S_L,R_ESI,R_ESI)));
|
|
exprasmlist^.concat(new(pai386,op_reg(A_PUSH,S_L,R_ESI)));
|
|
{ insert the vmt }
|
|
exprasmlist^.concat(new(pai386,op_csymbol(A_PUSH,S_L,
|
|
newcsymbol(pobjectdef(p^.methodpointer^.resulttype)^.vmt_mangledname,0))));
|
|
maybe_concat_external(pobjectdef(p^.methodpointer^.resulttype)^.owner,
|
|
pobjectdef(p^.methodpointer^.resulttype)^.vmt_mangledname);
|
|
extended_new:=true;
|
|
end;
|
|
hdisposen:
|
|
begin
|
|
secondpass(p^.methodpointer);
|
|
|
|
{ destructor with extended syntax called from dispose }
|
|
{ hdisposen always deliver LOC_REFERENCE }
|
|
exprasmlist^.concat(new(pai386,op_ref_reg(A_LEA,S_L,
|
|
newreference(p^.methodpointer^.location.reference),R_ESI)));
|
|
del_reference(p^.methodpointer^.location.reference);
|
|
exprasmlist^.concat(new(pai386,op_reg(A_PUSH,S_L,R_ESI)));
|
|
exprasmlist^.concat(new(pai386,op_csymbol(A_PUSH,S_L,
|
|
newcsymbol(pobjectdef(p^.methodpointer^.resulttype)^.vmt_mangledname,0))));
|
|
maybe_concat_external(pobjectdef(p^.methodpointer^.resulttype)^.owner,
|
|
pobjectdef(p^.methodpointer^.resulttype)^.vmt_mangledname);
|
|
end;
|
|
else
|
|
begin
|
|
{ call to an instance member }
|
|
if (p^.symtable^.symtabletype<>withsymtable) then
|
|
begin
|
|
secondpass(p^.methodpointer);
|
|
case p^.methodpointer^.location.loc of
|
|
LOC_REGISTER:
|
|
begin
|
|
ungetregister32(p^.methodpointer^.location.register);
|
|
emit_reg_reg(A_MOV,S_L,p^.methodpointer^.location.register,R_ESI);
|
|
end;
|
|
else
|
|
begin
|
|
if (p^.methodpointer^.resulttype^.deftype=objectdef) and
|
|
pobjectdef(p^.methodpointer^.resulttype)^.isclass then
|
|
exprasmlist^.concat(new(pai386,op_ref_reg(A_MOV,S_L,
|
|
newreference(p^.methodpointer^.location.reference),R_ESI)))
|
|
else
|
|
exprasmlist^.concat(new(pai386,op_ref_reg(A_LEA,S_L,
|
|
newreference(p^.methodpointer^.location.reference),R_ESI)));
|
|
del_reference(p^.methodpointer^.location.reference);
|
|
end;
|
|
end;
|
|
end;
|
|
{ when calling a class method, we have
|
|
to load ESI with the VMT !
|
|
But that's wrong, if we call a class method via self
|
|
}
|
|
if ((p^.procdefinition^.options and poclassmethod)<>0)
|
|
and not(p^.methodpointer^.treetype=selfn) then
|
|
begin
|
|
{ class method needs current VMT }
|
|
new(r);
|
|
reset_reference(r^);
|
|
r^.base:=R_ESI;
|
|
exprasmlist^.concat(new(pai386,op_ref_reg(A_MOV,S_L,r,R_ESI)));
|
|
end;
|
|
|
|
{ direct call to class constructor, don't allocate memory }
|
|
if is_con_or_destructor and
|
|
(p^.methodpointer^.resulttype^.deftype=objectdef) and
|
|
(pobjectdef(p^.methodpointer^.resulttype)^.isclass) then
|
|
exprasmlist^.concat(new(pai386,op_const(A_PUSH,S_L,0)))
|
|
else
|
|
exprasmlist^.concat(new(pai386,op_reg(A_PUSH,S_L,R_ESI)));
|
|
if is_con_or_destructor then
|
|
begin
|
|
{ classes don't get a VMT pointer pushed }
|
|
if (p^.methodpointer^.resulttype^.deftype=objectdef) and
|
|
not(pobjectdef(p^.methodpointer^.resulttype)^.isclass) then
|
|
begin
|
|
if ((p^.procdefinition^.options and poconstructor)<>0) then
|
|
begin
|
|
{ it's no bad idea, to insert the VMT }
|
|
exprasmlist^.concat(new(pai386,op_csymbol(A_PUSH,S_L,
|
|
newcsymbol(pobjectdef(p^.methodpointer^.resulttype)^.vmt_mangledname,
|
|
0))));
|
|
maybe_concat_external(pobjectdef(p^.methodpointer^.resulttype)^.owner,
|
|
pobjectdef(p^.methodpointer^.resulttype)^.vmt_mangledname);
|
|
end
|
|
{ destructors haven't to dispose the instance, if this is }
|
|
{ a direct call }
|
|
else
|
|
push_int(0);
|
|
end;
|
|
end;
|
|
end;
|
|
end;
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
if ((p^.procdefinition^.options and poclassmethod)<>0) and
|
|
not(
|
|
assigned(aktprocsym) and
|
|
((aktprocsym^.definition^.options and poclassmethod)<>0)
|
|
) then
|
|
begin
|
|
{ class method needs current VMT }
|
|
new(r);
|
|
reset_reference(r^);
|
|
r^.base:=R_ESI;
|
|
exprasmlist^.concat(new(pai386,op_ref_reg(A_MOV,S_L,r,R_ESI)));
|
|
end
|
|
else
|
|
begin
|
|
{ member call, ESI isn't modified }
|
|
loadesi:=false;
|
|
end;
|
|
exprasmlist^.concat(new(pai386,op_reg(A_PUSH,S_L,R_ESI)));
|
|
{ but a con- or destructor here would probably almost }
|
|
{ always be placed wrong }
|
|
if is_con_or_destructor then
|
|
begin
|
|
Message(cg_w_member_cd_call_from_method);
|
|
push_int(0);
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
{ push base pointer ?}
|
|
if (lexlevel>1) and assigned(pprocdef(p^.procdefinition)^.parast) and
|
|
((p^.procdefinition^.parast^.symtablelevel)>2) then
|
|
begin
|
|
{ if we call a nested function in a method, we must }
|
|
{ push also SELF! }
|
|
{ THAT'S NOT TRUE, we have to load ESI via frame pointer }
|
|
{ access }
|
|
{
|
|
begin
|
|
loadesi:=false;
|
|
exprasmlist^.concat(new(pai386,op_reg(A_PUSH,S_L,R_ESI)));
|
|
end;
|
|
}
|
|
if lexlevel=(p^.procdefinition^.parast^.symtablelevel) then
|
|
begin
|
|
new(r);
|
|
reset_reference(r^);
|
|
r^.offset:=procinfo.framepointer_offset;
|
|
r^.base:=procinfo.framepointer;
|
|
exprasmlist^.concat(new(pai386,op_ref(A_PUSH,S_L,r)))
|
|
end
|
|
{ this is only true if the difference is one !!
|
|
but it cannot be more !! }
|
|
else if (lexlevel=p^.procdefinition^.parast^.symtablelevel-1) then
|
|
begin
|
|
exprasmlist^.concat(new(pai386,op_reg(A_PUSH,S_L,procinfo.framepointer)))
|
|
end
|
|
else if (lexlevel>p^.procdefinition^.parast^.symtablelevel) then
|
|
begin
|
|
hregister:=getregister32;
|
|
new(r);
|
|
reset_reference(r^);
|
|
r^.offset:=procinfo.framepointer_offset;
|
|
r^.base:=procinfo.framepointer;
|
|
exprasmlist^.concat(new(pai386,op_ref_reg(A_MOV,S_L,r,hregister)));
|
|
for i:=(p^.procdefinition^.parast^.symtablelevel) to lexlevel-1 do
|
|
begin
|
|
new(r);
|
|
reset_reference(r^);
|
|
{we should get the correct frame_pointer_offset at each level
|
|
how can we do this !!! }
|
|
r^.offset:=procinfo.framepointer_offset;
|
|
r^.base:=hregister;
|
|
exprasmlist^.concat(new(pai386,op_ref_reg(A_MOV,S_L,r,hregister)));
|
|
end;
|
|
exprasmlist^.concat(new(pai386,op_reg(A_PUSH,S_L,hregister)));
|
|
ungetregister32(hregister);
|
|
end
|
|
else
|
|
internalerror(25000);
|
|
end;
|
|
|
|
{ exported methods should be never called direct.
|
|
Why? Bp7 Allows it (PFV)
|
|
|
|
if (p^.procdefinition^.options and poexports)<>0 then
|
|
Message(cg_e_dont_call_exported_direct); }
|
|
|
|
if (not inlined) and ((pushedparasize mod 4)<>0) then
|
|
begin
|
|
corr^.op1:=pointer(4-(pushedparasize mod 4));
|
|
must_pop:=true;
|
|
pop_size:=4-(pushedparasize mod 4);
|
|
end
|
|
else
|
|
begin
|
|
exprasmlist^.remove(corr);
|
|
must_pop:=false;
|
|
pop_size:=0;
|
|
end;
|
|
|
|
if ((p^.procdefinition^.options and povirtualmethod)<>0) and
|
|
not(no_virtual_call) then
|
|
begin
|
|
{ static functions contain the vmt_address in ESI }
|
|
{ also class methods }
|
|
if assigned(aktprocsym) then
|
|
begin
|
|
if ((aktprocsym^.properties and sp_static)<>0) or
|
|
((aktprocsym^.definition^.options and poclassmethod)<>0) or
|
|
((p^.procdefinition^.options and postaticmethod)<>0) or
|
|
((p^.procdefinition^.options and poconstructor)<>0) or
|
|
{ ESI is loaded earlier }
|
|
((p^.procdefinition^.options and poclassmethod)<>0)then
|
|
begin
|
|
new(r);
|
|
reset_reference(r^);
|
|
r^.base:=R_ESI;
|
|
end
|
|
else
|
|
begin
|
|
new(r);
|
|
reset_reference(r^);
|
|
r^.base:=R_ESI;
|
|
exprasmlist^.concat(new(pai386,op_ref_reg(A_MOV,S_L,r,R_EDI)));
|
|
new(r);
|
|
reset_reference(r^);
|
|
r^.base:=R_EDI;
|
|
end;
|
|
end
|
|
else
|
|
{ aktprocsym should be assigned, also in main program }
|
|
internalerror(12345);
|
|
{
|
|
begin
|
|
new(r);
|
|
reset_reference(r^);
|
|
r^.base:=R_ESI;
|
|
exprasmlist^.concat(new(pai386,op_ref_reg(A_MOV,S_L,r,R_EDI)));
|
|
new(r);
|
|
reset_reference(r^);
|
|
r^.base:=R_EDI;
|
|
end;
|
|
}
|
|
if p^.procdefinition^.extnumber=-1 then
|
|
internalerror($Da);
|
|
r^.offset:=p^.procdefinition^.extnumber*4+12;
|
|
if (cs_check_range in aktlocalswitches) then
|
|
begin
|
|
exprasmlist^.concat(new(pai386,op_reg(A_PUSH,S_L,r^.base)));
|
|
emitcall('CHECK_OBJECT',true);
|
|
end;
|
|
exprasmlist^.concat(new(pai386,op_ref(A_CALL,S_NO,r)));
|
|
end
|
|
else if not inlined then
|
|
emitcall(p^.procdefinition^.mangledname,
|
|
(p^.symtableproc^.symtabletype=unitsymtable) or
|
|
((p^.symtableproc^.symtabletype=objectsymtable) and
|
|
(pobjectdef(p^.symtableproc^.defowner)^.owner^.symtabletype=unitsymtable)))
|
|
else { inlined proc }
|
|
{ inlined code is in inlinecode }
|
|
begin
|
|
secondpass(inlinecode);
|
|
{ set poinline again }
|
|
p^.procdefinition^.options:=p^.procdefinition^.options or poinline;
|
|
{ free the args }
|
|
ungetpersistanttemp(p^.procdefinition^.parast^.call_offset,
|
|
p^.procdefinition^.parast^.datasize);
|
|
end;
|
|
end
|
|
else
|
|
{ now procedure variable case }
|
|
begin
|
|
if (pushedparasize mod 4)<>0 then
|
|
begin
|
|
corr^.op1:=pointer(4-(pushedparasize mod 4));
|
|
must_pop:=true;
|
|
pop_size:=4-(pushedparasize mod 4);
|
|
end
|
|
else
|
|
begin
|
|
exprasmlist^.remove(corr);
|
|
must_pop:=false;
|
|
pop_size:=0;
|
|
end;
|
|
secondpass(p^.right);
|
|
{ method pointer ? }
|
|
if (p^.procdefinition^.options and pomethodpointer)<>0 then
|
|
begin
|
|
{ method pointer can't be in a register }
|
|
inc(p^.right^.location.reference.offset,4);
|
|
{ push self pointer }
|
|
exprasmlist^.concat(new(pai386,op_ref(A_PUSH,S_L,newreference(p^.right^.location.reference))));
|
|
del_reference(p^.right^.location.reference);
|
|
dec(p^.right^.location.reference.offset,4);
|
|
end;
|
|
case p^.right^.location.loc of
|
|
LOC_REGISTER,LOC_CREGISTER:
|
|
begin
|
|
exprasmlist^.concat(new(pai386,op_reg(A_CALL,S_NO,p^.right^.location.register)));
|
|
ungetregister32(p^.right^.location.register);
|
|
end
|
|
else
|
|
exprasmlist^.concat(new(pai386,op_ref(A_CALL,S_NO,newreference(p^.right^.location.reference))));
|
|
del_reference(p^.right^.location.reference);
|
|
end;
|
|
|
|
|
|
end;
|
|
{ this was only for normal functions
|
|
displaced here so we also get
|
|
it to work for procvars PM }
|
|
if (not inlined) and ((p^.procdefinition^.options and poclearstack)<>0) then
|
|
begin
|
|
{ consider the alignment with the rest (PM) }
|
|
pushedparasize:=pushedparasize+pop_size;
|
|
must_pop:=false;
|
|
if pushedparasize=4 then
|
|
{ better than an add on all processors }
|
|
exprasmlist^.concat(new(pai386,op_reg(A_POP,S_L,R_EDI)))
|
|
{ the pentium has two pipes and pop reg is pairable }
|
|
{ but the registers must be different! }
|
|
else if (pushedparasize=8) and
|
|
not(cs_littlesize in aktglobalswitches) and
|
|
(aktoptprocessor=ClassP5) and
|
|
(procinfo._class=nil) then
|
|
begin
|
|
exprasmlist^.concat(new(pai386,op_reg(A_POP,S_L,R_EDI)));
|
|
exprasmlist^.concat(new(pai386,op_reg(A_POP,S_L,R_ESI)));
|
|
end
|
|
else exprasmlist^.concat(new(pai386,op_const_reg(A_ADD,S_L,pushedparasize,R_ESP)));
|
|
end;
|
|
dont_call:
|
|
pushedparasize:=oldpushedparasize;
|
|
unused:=unusedregisters;
|
|
|
|
{ handle function results }
|
|
{ structured results are easy to handle.... }
|
|
{ needed also when result_no_used !! }
|
|
if (p^.resulttype<>pdef(voiddef)) and ret_in_param(p^.resulttype) then
|
|
begin
|
|
p^.location.loc:=LOC_MEM;
|
|
stringdispose(p^.location.reference.symbol);
|
|
p^.location.reference:=funcretref;
|
|
end;
|
|
if (p^.resulttype<>pdef(voiddef)) and p^.return_value_used then
|
|
begin
|
|
{ a contructor could be a function with boolean result }
|
|
if (p^.right=nil) and
|
|
((p^.procdefinition^.options and poconstructor)<>0) and
|
|
{ quick'n'dirty check if it is a class or an object }
|
|
(p^.resulttype^.deftype=orddef) then
|
|
begin
|
|
p^.location.loc:=LOC_FLAGS;
|
|
p^.location.resflags:=F_NE;
|
|
if extended_new then
|
|
begin
|
|
{$ifdef test_dest_loc}
|
|
if dest_loc_known and (dest_loc_tree=p) then
|
|
mov_reg_to_dest(p,S_L,R_EAX)
|
|
else
|
|
{$endif test_dest_loc}
|
|
begin
|
|
hregister:=getregister32;
|
|
emit_reg_reg(A_MOV,S_L,R_EAX,hregister);
|
|
p^.location.register:=hregister;
|
|
end;
|
|
end;
|
|
end
|
|
{ structed results are easy to handle.... }
|
|
else if ret_in_param(p^.resulttype) then
|
|
begin
|
|
{p^.location.loc:=LOC_MEM;
|
|
stringdispose(p^.location.reference.symbol);
|
|
p^.location.reference:=funcretref;
|
|
already done above (PM) }
|
|
end
|
|
else
|
|
begin
|
|
if (p^.resulttype^.deftype=orddef) then
|
|
begin
|
|
p^.location.loc:=LOC_REGISTER;
|
|
case porddef(p^.resulttype)^.typ of
|
|
s32bit,u32bit,bool32bit :
|
|
begin
|
|
{$ifdef test_dest_loc}
|
|
if dest_loc_known and (dest_loc_tree=p) then
|
|
mov_reg_to_dest(p,S_L,R_EAX)
|
|
else
|
|
{$endif test_dest_loc}
|
|
begin
|
|
hregister:=getregister32;
|
|
emit_reg_reg(A_MOV,S_L,R_EAX,hregister);
|
|
p^.location.register:=hregister;
|
|
end;
|
|
end;
|
|
uchar,u8bit,bool8bit,s8bit :
|
|
begin
|
|
{$ifdef test_dest_loc}
|
|
if dest_loc_known and (dest_loc_tree=p) then
|
|
mov_reg_to_dest(p,S_B,R_AL)
|
|
else
|
|
{$endif test_dest_loc}
|
|
begin
|
|
hregister:=getregister32;
|
|
emit_reg_reg(A_MOV,S_B,R_AL,reg32toreg8(hregister));
|
|
p^.location.register:=reg32toreg8(hregister);
|
|
end;
|
|
end;
|
|
s16bit,u16bit,bool16bit :
|
|
begin
|
|
{$ifdef test_dest_loc}
|
|
if dest_loc_known and (dest_loc_tree=p) then
|
|
mov_reg_to_dest(p,S_W,R_AX)
|
|
else
|
|
{$endif test_dest_loc}
|
|
begin
|
|
hregister:=getregister32;
|
|
emit_reg_reg(A_MOV,S_W,R_AX,reg32toreg16(hregister));
|
|
p^.location.register:=reg32toreg16(hregister);
|
|
end;
|
|
end;
|
|
else internalerror(7);
|
|
end
|
|
|
|
end
|
|
else if (p^.resulttype^.deftype=floatdef) then
|
|
case pfloatdef(p^.resulttype)^.typ of
|
|
f32bit : begin
|
|
p^.location.loc:=LOC_REGISTER;
|
|
{$ifdef test_dest_loc}
|
|
if dest_loc_known and (dest_loc_tree=p) then
|
|
mov_reg_to_dest(p,S_L,R_EAX)
|
|
else
|
|
{$endif test_dest_loc}
|
|
begin
|
|
hregister:=getregister32;
|
|
emit_reg_reg(A_MOV,S_L,R_EAX,hregister);
|
|
p^.location.register:=hregister;
|
|
end;
|
|
end;
|
|
else
|
|
p^.location.loc:=LOC_FPU;
|
|
end
|
|
else
|
|
begin
|
|
p^.location.loc:=LOC_REGISTER;
|
|
{$ifdef test_dest_loc}
|
|
if dest_loc_known and (dest_loc_tree=p) then
|
|
mov_reg_to_dest(p,S_L,R_EAX)
|
|
else
|
|
{$endif test_dest_loc}
|
|
begin
|
|
hregister:=getregister32;
|
|
emit_reg_reg(A_MOV,S_L,R_EAX,hregister);
|
|
p^.location.register:=hregister;
|
|
end;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
{ perhaps i/o check ? }
|
|
if iolabel<>nil then
|
|
begin
|
|
exprasmlist^.concat(new(pai386,op_csymbol(A_PUSH,S_L,newcsymbol(lab2str(iolabel),0))));
|
|
{ this was wrong, probably an error due to diff3
|
|
emitcall(p^.procdefinition^.mangledname);}
|
|
emitcall('IOCHECK',true);
|
|
end;
|
|
if must_pop then
|
|
exprasmlist^.concat(new(pai386,op_const_reg(A_ADD,S_L,pop_size,R_ESP)));
|
|
{ restore registers }
|
|
popusedregisters(pushed);
|
|
|
|
{ at last, restore instance pointer (SELF) }
|
|
if loadesi then
|
|
maybe_loadesi;
|
|
pp:=params;
|
|
while assigned(pp) do
|
|
begin
|
|
if assigned(pp^.left) then
|
|
if (pp^.left^.location.loc=LOC_REFERENCE) or
|
|
(pp^.left^.location.loc=LOC_MEM) then
|
|
ungetiftemp(pp^.left^.location.reference);
|
|
pp:=pp^.right;
|
|
end;
|
|
if inlined then
|
|
ungetpersistanttemp(inlinecode^.retoffset,4);
|
|
disposetree(params);
|
|
|
|
|
|
{ from now on the result can be freed normally }
|
|
if inlined and ret_in_param(p^.resulttype) then
|
|
persistanttemptonormal(funcretref.offset);
|
|
|
|
{ if return value is not used }
|
|
if (not p^.return_value_used) and (p^.resulttype<>pdef(voiddef)) then
|
|
begin
|
|
if p^.location.loc in [LOC_MEM,LOC_REFERENCE] then
|
|
{ release unused temp }
|
|
ungetiftemp(p^.location.reference)
|
|
else if p^.location.loc=LOC_FPU then
|
|
{ release FPU stack }
|
|
exprasmlist^.concat(new(pai386,op_none(A_FDECSTP,S_NO)));
|
|
end;
|
|
end;
|
|
|
|
|
|
{*****************************************************************************
|
|
SecondProcInlineN
|
|
*****************************************************************************}
|
|
|
|
{ implementation not complete yet }
|
|
|
|
var
|
|
addr_correction : longint;
|
|
|
|
procedure correct_address(p : psym);{$ifndef FPC}far;{$endif}
|
|
begin
|
|
if p^.typ=varsym then
|
|
begin
|
|
inc(pvarsym(p)^.address,addr_correction);
|
|
{$ifdef extdebug}
|
|
Comment(V_debug,pvarsym(p)^.name+' is at offset -'
|
|
+tostr(pvarsym(p)^.address));
|
|
exprasmlist^.concat(new(pai_asm_comment,init(
|
|
strpnew(pvarsym(p)^.name+' is at offset -'
|
|
+tostr(pvarsym(p)^.address)))));
|
|
{$endif extdebug}
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure secondprocinline(var p : ptree);
|
|
var st : psymtable;
|
|
oldprocsym : pprocsym;
|
|
para_size : longint;
|
|
oldprocinfo : tprocinfo;
|
|
{ just dummies for genentrycode }
|
|
nostackframe,make_global : boolean;
|
|
proc_names : tstringcontainer;
|
|
inlineentrycode,inlineexitcode : paasmoutput;
|
|
oldexitlabel,oldexit2label,oldquickexitlabel:Plabel;
|
|
begin
|
|
oldexitlabel:=aktexitlabel;
|
|
oldexit2label:=aktexit2label;
|
|
oldquickexitlabel:=quickexitlabel;
|
|
getlabel(aktexitlabel);
|
|
getlabel(aktexit2label);
|
|
oldprocsym:=aktprocsym;
|
|
oldprocinfo:=procinfo;
|
|
{ set the return value }
|
|
procinfo.retdef:=p^.inlineprocdef^.retdef;
|
|
procinfo.retoffset:=p^.retoffset;
|
|
{ arg space has been filled by the parent secondcall }
|
|
st:=p^.inlineprocdef^.localst;
|
|
{ set it to the same lexical level }
|
|
st^.symtablelevel:=
|
|
oldprocsym^.definition^.localst^.symtablelevel;
|
|
if st^.datasize>0 then
|
|
st^.call_offset:=gettempofsizepersistant(st^.datasize);
|
|
{$ifdef extdebug}
|
|
Comment(V_debug,'local symtable is at offset '
|
|
+tostr(st^.call_offset));
|
|
exprasmlist^.concat(new(pai_asm_comment,init(
|
|
strpnew('local symtable is at offset '
|
|
+tostr(st^.call_offset)))));
|
|
{$endif extdebug}
|
|
addr_correction:=-st^.call_offset-st^.datasize;
|
|
st^.foreach(correct_address);
|
|
{$ifdef extdebug}
|
|
exprasmlist^.concat(new(pai_asm_comment,init('Start of inlined proc')));
|
|
{$endif extdebug}
|
|
{ takes care of local data initialization }
|
|
inlineentrycode:=new(paasmoutput,init);
|
|
inlineexitcode:=new(paasmoutput,init);
|
|
proc_names.init;
|
|
para_size:=p^.para_size;
|
|
make_global:=false; { to avoid warning }
|
|
genentrycode(inlineentrycode,proc_names,make_global,0,para_size,nostackframe,true);
|
|
exprasmlist^.concatlist(inlineentrycode);
|
|
secondpass(p^.left);
|
|
genexitcode(inlineexitcode,0,false,true);
|
|
exprasmlist^.concatlist(inlineexitcode);
|
|
{$ifdef extdebug}
|
|
exprasmlist^.concat(new(pai_asm_comment,init('End of inlined proc')));
|
|
{$endif extdebug}
|
|
{we can free the local data now }
|
|
if st^.datasize>0 then
|
|
ungetpersistanttemp(st^.call_offset,st^.datasize);
|
|
{ set the real address again }
|
|
addr_correction:=-addr_correction;
|
|
st^.foreach(correct_address);
|
|
aktprocsym:=oldprocsym;
|
|
aktexitlabel:=oldexitlabel;
|
|
aktexit2label:=oldexit2label;
|
|
quickexitlabel:=oldquickexitlabel;
|
|
procinfo:=oldprocinfo;
|
|
end;
|
|
|
|
|
|
|
|
end.
|
|
{
|
|
$Log$
|
|
Revision 1.22 1998-09-04 08:41:37 peter
|
|
* updated some error messages
|
|
|
|
Revision 1.21 1998/09/01 12:47:57 peter
|
|
* use pdef^.size instead of orddef^.typ
|
|
|
|
Revision 1.20 1998/08/31 12:22:15 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
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* fixed 'with object do' bug
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Revision 1.17 1998/08/19 16:07:36 jonas
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* changed optimizer switches + cleanup of DestroyRefs in daopt386.pas
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Revision 1.16 1998/08/18 09:24:36 pierre
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* small warning position bug fixed
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* support_mmx switches splitting was missing
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* rhide error and warning output corrected
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Revision 1.15 1998/08/13 11:00:09 peter
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* fixed procedure<>procedure construct
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Revision 1.14 1998/08/11 14:05:33 peter
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* fixed sizeof(array of char)
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Revision 1.13 1998/08/10 14:49:45 peter
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+ localswitches, moduleswitches, globalswitches splitting
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Revision 1.12 1998/07/30 13:30:31 florian
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* final implemenation of exception support, maybe it needs
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some fixes :)
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Revision 1.11 1998/07/24 22:16:52 florian
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* internal error 10 together with array access fixed. I hope
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that's the final fix.
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Revision 1.10 1998/07/18 22:54:23 florian
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* some ansi/wide/longstring support fixed:
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o parameter passing
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o returning as result from functions
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Revision 1.9 1998/07/07 17:40:37 peter
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* packrecords 4 works
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* word aligning of parameters
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Revision 1.8 1998/07/06 15:51:15 michael
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Added length checking for string reading
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Revision 1.7 1998/07/06 14:19:51 michael
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+ Added calls for reading/writing ansistrings
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Revision 1.6 1998/07/01 15:28:48 peter
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+ better writeln/readln handling, now 100% like tp7
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Revision 1.5 1998/06/25 14:04:17 peter
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+ internal inc/dec
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Revision 1.4 1998/06/25 08:48:06 florian
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* first version of rtti support
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Revision 1.3 1998/06/09 16:01:33 pierre
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+ added procedure directive parsing for procvars
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(accepted are popstack cdecl and pascal)
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+ added C vars with the following syntax
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var C calias 'true_c_name';(can be followed by external)
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reason is that you must add the Cprefix
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which is target dependent
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Revision 1.2 1998/06/08 13:13:29 pierre
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+ temporary variables now in temp_gen.pas unit
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because it is processor independent
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* mppc68k.bat modified to undefine i386 and support_mmx
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(which are defaults for i386)
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Revision 1.1 1998/06/05 17:44:10 peter
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* splitted cgi386
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}
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