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fpc/compiler/sparc/cga.pas
mazen dc65ff681b first insertion 2002\08\22
2002-08-22 08:30:50 +00:00

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{*****************************************************************************}
{ File : cga.pas }
{ Author : Mazen NEIFER }
{ Project : Free Pascal Compiler (FPC) }
{ Creation date : 2002\26\26 }
{ Last modification date : 2002\07\13 }
{ Licence : GPL }
{ Bug report : mazen.neifer.01@supaero.org }
{*****************************************************************************}
{
$Id$
Copyright (c) 1998-2002 by Florian Klaempfl
Helper routines for the i386 code generator
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 cga;
{$i fpcdefs.inc}
interface
uses
cpuinfo,cpubase,cginfo,
symconst,symtype,symdef,aasmbase,aasmtai,aasmcpu;
{$define TESTGETTEMP to store const that
are written into temps for later release PM }
function def_opsize(p1:tdef):topsize;
function def_getreg(p1:tdef):tregister;
procedure emitjmp(c : tasmcond;var l : tasmlabel);
procedure emit_none(i : tasmop;s : topsize);
procedure emit_const(i : tasmop;s : topsize;c : longint);
procedure emit_reg(i : tasmop;s : topsize;reg : tregister);
procedure emit_ref(i : tasmop;s : topsize;const ref : treference);
procedure emit_const_reg(i : tasmop;s : topsize;c : longint;reg : tregister);
procedure emit_const_ref(i : tasmop;s : topsize;c : longint;const ref : treference);
procedure emit_ref_reg(i : tasmop;s : topsize;const ref : treference;reg : tregister);
procedure emit_reg_ref(i : tasmop;s : topsize;reg : tregister;const ref : treference);
procedure emit_reg_reg(i : tasmop;s : topsize;reg1,reg2 : tregister);
procedure emit_const_reg_reg(i : tasmop;s : topsize;c : longint;reg1,reg2 : tregister);
procedure emit_reg_reg_reg(i : tasmop;s : topsize;reg1,reg2,reg3 : tregister);
procedure emit_sym(i : tasmop;s : topsize;op : tasmsymbol);
implementation
uses
cutils,
systems,globals,verbose,
cgbase,cgobj,tgobj,rgobj,rgcpu;
{*****************************************************************************
Helpers
*****************************************************************************}
function def_opsize(p1:tdef):topsize;
begin
case p1.size of
1 : def_opsize:=S_B;
2 : def_opsize:=S_W;
4 : def_opsize:=S_L;
{ I don't know if we need it (FK) }
8 : def_opsize:=S_L;
else
internalerror(130820001);
end;
end;
function def_getreg(p1:tdef):tregister;
begin
def_getreg:=rg.makeregsize(rg.getregisterint(exprasmlist),int_cgsize(p1.size));
end;
{*****************************************************************************
Emit Assembler
*****************************************************************************}
procedure emitjmp(c : tasmcond;var l : tasmlabel);
var
ai : taicpu;
begin
if c=C_None then
ai := Taicpu.Op_sym(A_JMPL,S_NO,l)
else
begin
ai:=Taicpu.Op_sym(A_JMPL,S_NO,l);
ai.SetCondition(c);
end;
ai.is_jmp:=true;
exprasmList.concat(ai);
end;
procedure emit_none(i : tasmop;s : topsize);
begin
exprasmList.concat(Taicpu.Op_none(i,s));
end;
procedure emit_reg(i : tasmop;s : topsize;reg : tregister);
begin
exprasmList.concat(Taicpu.Op_reg(i,s,reg));
end;
procedure emit_ref(i : tasmop;s : topsize;const ref : treference);
begin
exprasmList.concat(Taicpu.Op_ref(i,s,ref));
end;
procedure emit_const(i : tasmop;s : topsize;c : longint);
begin
exprasmList.concat(Taicpu.Op_const(i,s,aword(c)));
end;
procedure emit_const_reg(i : tasmop;s : topsize;c : longint;reg : tregister);
begin
exprasmList.concat(Taicpu.Op_const_reg(i,s,aword(c),reg));
end;
procedure emit_const_ref(i : tasmop;s : topsize;c : longint;const ref : treference);
begin
exprasmList.concat(Taicpu.Op_const_ref(i,s,aword(c),ref));
end;
procedure emit_ref_reg(i : tasmop;s : topsize;const ref : treference;reg : tregister);
begin
exprasmList.concat(Taicpu.Op_ref_reg(i,s,ref,reg));
end;
procedure emit_reg_ref(i : tasmop;s : topsize;reg : tregister;const ref : treference);
begin
exprasmList.concat(Taicpu.Op_reg_ref(i,s,reg,ref));
end;
PROCEDURE emit_reg_reg(i:tasmop;s:topsize;reg1,reg2:tregister);
BEGIN
IF reg1<>reg2
THEN
exprasmList.concat(Taicpu.Op_reg_reg(i,s,reg1,reg2));
END;
procedure emit_const_reg_reg(i : tasmop;s : topsize;c : longint;reg1,reg2 : tregister);
begin
exprasmList.concat(Taicpu.Op_reg_const_reg(i,s,reg1,c,reg2));
end;
procedure emit_reg_reg_reg(i : tasmop;s : topsize;reg1,reg2,reg3 : tregister);
begin
exprasmList.concat(Taicpu.Op_reg_reg_reg(i,s,reg1,reg2,reg3));
end;
procedure emit_sym(i : tasmop;s : topsize;op : tasmsymbol);
begin
exprasmList.concat(Taicpu.Op_sym(i,s,op));
end;
end.
{
$Log$
Revision 1.1 2002-08-22 08:30:50 mazen
first insertion 2002\08\22
Revision 1.32 2002/05/18 13:34:21 peter
* readded missing revisions
Revision 1.31 2002/05/16 19:46:50 carl
+ defines.inc -> fpcdefs.inc to avoid conflicts if compiling by hand
+ try to fix temp allocation (still in ifdef)
+ generic constructor calls
+ start of tassembler / tmodulebase class cleanup
Revision 1.29 2002/05/13 19:54:37 peter
* removed n386ld and n386util units
* maybe_save/maybe_restore added instead of the old maybe_push
Revision 1.28 2002/05/12 16:53:16 peter
* moved entry and exitcode to ncgutil and cgobj
* foreach gets extra argument for passing local data to the
iterator function
* -CR checks also class typecasts at runtime by changing them
into as
* fixed compiler to cycle with the -CR option
* fixed stabs with elf writer, finally the global variables can
be watched
* removed a lot of routines from cga unit and replaced them by
calls to cgobj
* u32bit-s32bit updates for and,or,xor nodes. When one element is
u32bit then the other is typecasted also to u32bit without giving
a rangecheck warning/error.
* fixed pascal calling method with reversing also the high tree in
the parast, detected by tcalcst3 test
Revision 1.27 2002/04/25 20:16:39 peter
* moved more routines from cga/n386util
Revision 1.26 2002/04/21 15:29:53 carl
* changeregsize -> rg.makeregsize
Revision 1.25 2002/04/20 21:37:07 carl
+ generic FPC_CHECKPOINTER
+ first parameter offset in stack now portable
* rename some constants
+ move some cpu stuff to other units
- remove unused constents
* fix stacksize for some targets
* fix generic size problems which depend now on EXTEND_SIZE constant
* removing frame pointer in routines is only available for : i386,m68k and vis targets
Revision 1.24 2002/04/19 15:39:34 peter
* removed some more routines from cga
* moved location_force_reg/mem to ncgutil
* moved arrayconstructnode secondpass to ncgld
Revision 1.23 2002/04/15 19:44:20 peter
* fixed stackcheck that would be called recursively when a stack
error was found
* generic changeregsize(reg,size) for i386 register resizing
* removed some more routines from cga unit
* fixed returnvalue handling
* fixed default stacksize of linux and go32v2, 8kb was a bit small :-)
Revision 1.22 2002/04/14 20:54:17 carl
+ stack checking enabled for all targets (it is simulated now)
Revision 1.21 2002/04/04 19:06:08 peter
* removed unused units
* use tlocation.size in cg.a_*loc*() routines
Revision 1.20 2002/04/04 18:30:22 carl
+ added wdosx support (patch from Pavel)
Revision 1.19 2002/04/02 17:11:33 peter
* tlocation,treference update
* LOC_CONSTANT added for better constant handling
* secondadd splitted in multiple routines
* location_force_reg added for loading a location to a register
of a specified size
* secondassignment parses now first the right and then the left node
(this is compatible with Kylix). This saves a lot of push/pop especially
with string operations
* adapted some routines to use the new cg methods
Revision 1.18 2002/03/31 20:26:37 jonas
+ a_loadfpu_* and a_loadmm_* methods in tcg
* register allocation is now handled by a class and is mostly processor
independent (+rgobj.pas and i386/rgcpu.pas)
* temp allocation is now handled by a class (+tgobj.pas, -i386\tgcpu.pas)
* some small improvements and fixes to the optimizer
* some register allocation fixes
* some fpuvaroffset fixes in the unary minus node
* push/popusedregisters is now called rg.save/restoreusedregisters and
(for i386) uses temps instead of push/pop's when using -Op3 (that code is
also better optimizable)
* fixed and optimized register saving/restoring for new/dispose nodes
* LOC_FPU locations now also require their "register" field to be set to
R_ST, not R_ST0 (the latter is used for LOC_CFPUREGISTER locations only)
- list field removed of the tnode class because it's not used currently
and can cause hard-to-find bugs
Revision 1.17 2002/03/28 16:07:52 armin
+ initialize threadvars defined local in units
Revision 1.16 2002/03/04 19:10:12 peter
* removed compiler warnings
Revision 1.15 2002/01/24 18:25:53 peter
* implicit result variable generation for assembler routines
* removed m_tp modeswitch, use m_tp7 or not(m_fpc) instead
Revision 1.14 2002/01/19 14:21:17 peter
* fixed init/final for value parameters
}
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