fpc/compiler/llvm/nllvmutil.pas
Jonas Maebe e2cf90ad8a * add type declarations for structure types in the llvm code so that we can
handle recursive record references (rec= record prec: ^rec)
   o llvm unfortunately does not support recursive references to array types
     or function pointers, so those will currently still result in endless
     recursion when the compiler tries to write them out. Solving those
     will require a lot of typecasting in the generated code

git-svn-id: trunk@30675 -
2015-04-19 21:37:46 +00:00

125 lines
3.2 KiB
ObjectPascal

{
Copyright (c) 20011 by Jonas Maebe
LLVM version of some node tree helper routines
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
****************************************************************************
}
unit nllvmutil;
{$i fpcdefs.inc}
interface
uses
globtype,
aasmdata,ngenutil,
symtype,symconst,symsym,symdef;
type
tllvmnodeutils = class(tnodeutils)
strict protected
class procedure insertbsssym(list: tasmlist; sym: tstaticvarsym; size: asizeint; varalign: shortint); override;
public
class procedure InsertInitFinalTable; override;
class procedure InsertWideInitsTablesTable; override;
class procedure InsertWideInits; override;
class procedure InsertResourceTablesTable; override;
class procedure InsertResourceInfo(ResourcesUsed : boolean); override;
class procedure InsertMemorySizes; override;
class procedure InsertObjectInfo; override;
end;
implementation
uses
verbose,cutils,globals,fmodule,
aasmbase,aasmtai,cpubase,llvmbase,aasmllvm,
symbase,symtable,defutil,
llvmtype;
class procedure tllvmnodeutils.insertbsssym(list: tasmlist; sym: tstaticvarsym; size: asizeint; varalign: shortint);
var
asmsym: tasmsymbol;
begin
if sym.globalasmsym then
asmsym:=current_asmdata.DefineAsmSymbol(sym.mangledname,AB_GLOBAL,AT_DATA)
else
asmsym:=current_asmdata.DefineAsmSymbol(sym.mangledname,AB_LOCAL,AT_DATA);
if not(vo_is_thread_var in sym.varoptions) then
list.concat(taillvmdecl.create(asmsym,sym.vardef,nil,sec_data,varalign))
else
list.concat(taillvmdecl.createtls(asmsym,sym.vardef,varalign))
end;
class procedure tllvmnodeutils.InsertInitFinalTable;
begin
{ todo }
end;
class procedure tllvmnodeutils.InsertWideInitsTablesTable;
begin
{ not required }
end;
class procedure tllvmnodeutils.InsertWideInits;
begin
{ not required }
end;
class procedure tllvmnodeutils.InsertResourceTablesTable;
begin
{ not supported }
end;
class procedure tllvmnodeutils.InsertResourceInfo(ResourcesUsed: boolean);
begin
{ not supported }
end;
class procedure tllvmnodeutils.InsertMemorySizes;
begin
{ not required }
end;
class procedure tllvmnodeutils.InsertObjectInfo;
begin
inherited;
{ add "type xx = .." statements for all used recorddefs }
with TLLVMTypeInfo.Create do
begin
inserttypeinfo;
free;
end;
end;
begin
cnodeutils:=tllvmnodeutils;
end.