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fpc/compiler/arm/aasmcpu.pas
florian 35110d8ef5 * fixed several arm issues
2004-01-26 19:05:56 +00:00

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{
$Id$
Copyright (c) 2003 by Florian Klaempfl
Contains the assembler object for the ARM
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 aasmcpu;
{$i fpcdefs.inc}
interface
uses
cclasses,aasmtai,
aasmbase,globals,verbose,
cpubase,cpuinfo,cgbase;
const
{ "mov reg,reg" source operand number }
O_MOV_SOURCE = 1;
{ "mov reg,reg" source operand number }
O_MOV_DEST = 0;
type
taicpu = class(taicpu_abstract)
oppostfix : TOpPostfix;
roundingmode : troundingmode;
procedure loadshifterop(opidx:longint;const so:tshifterop);
procedure loadregset(opidx:longint;const s:tcpuregisterset);
constructor op_none(op : tasmop);
constructor op_reg(op : tasmop;_op1 : tregister);
constructor op_const(op : tasmop;_op1 : longint);
constructor op_reg_reg(op : tasmop;_op1,_op2 : tregister);
constructor op_reg_ref(op : tasmop;_op1 : tregister;const _op2 : treference);
constructor op_reg_const(op:tasmop; _op1: tregister; _op2: aword);
constructor op_ref_regset(op:tasmop; _op1: treference; _op2: tcpuregisterset);
constructor op_reg_reg_reg(op : tasmop;_op1,_op2,_op3 : tregister);
constructor op_reg_reg_const(op : tasmop;_op1,_op2 : tregister; _op3: aword);
constructor op_reg_reg_sym_ofs(op : tasmop;_op1,_op2 : tregister; _op3: tasmsymbol;_op3ofs: longint);
constructor op_reg_reg_ref(op : tasmop;_op1,_op2 : tregister; const _op3: treference);
constructor op_reg_reg_shifterop(op : tasmop;_op1,_op2 : tregister;_op3 : tshifterop);
{ this is for Jmp instructions }
constructor op_cond_sym(op : tasmop;cond:TAsmCond;_op1 : tasmsymbol);
constructor op_sym(op : tasmop;_op1 : tasmsymbol);
constructor op_sym_ofs(op : tasmop;_op1 : tasmsymbol;_op1ofs:longint);
constructor op_reg_sym_ofs(op : tasmop;_op1 : tregister;_op2:tasmsymbol;_op2ofs : longint);
constructor op_sym_ofs_ref(op : tasmop;_op1 : tasmsymbol;_op1ofs:longint;const _op2 : treference);
function is_same_reg_move: boolean; override;
function is_reg_move:boolean; override;
{ register spilling code }
function spilling_create_load(const ref:treference;r:tregister): tai;override;
function spilling_create_store(r:tregister; const ref:treference): tai;override;
function spilling_get_operation_type(opnr: longint): topertype;override;
end;
tai_align = class(tai_align_abstract)
{ nothing to add }
end;
function setoppostfix(i : taicpu;pf : toppostfix) : taicpu;
function setroundingmode(i : taicpu;rm : troundingmode) : taicpu;
function setcondition(i : taicpu;c : tasmcond) : taicpu;
{ inserts pc relative symbols at places where they are reachable }
procedure insertpcrelativedata(list,listtoinsert : taasmoutput);
procedure InitAsm;
procedure DoneAsm;
implementation
uses
cutils,rgobj,itcpugas;
procedure taicpu.loadshifterop(opidx:longint;const so:tshifterop);
begin
allocate_oper(opidx+1);
with oper[opidx]^ do
begin
if typ<>top_shifterop then
begin
clearop(opidx);
new(shifterop);
end;
shifterop^:=so;
typ:=top_shifterop;
if assigned(add_reg_instruction_hook) then
add_reg_instruction_hook(self,shifterop^.rs);
end;
end;
procedure taicpu.loadregset(opidx:longint;const s:tcpuregisterset);
var
i : byte;
begin
allocate_oper(opidx+1);
with oper[opidx]^ do
begin
if typ<>top_regset then
clearop(opidx);
new(regset);
regset^:=s;
typ:=top_regset;
for i:=RS_R0 to RS_R15 do
begin
if assigned(add_reg_instruction_hook) and (i in regset^) then
add_reg_instruction_hook(self,newreg(R_INTREGISTER,i,R_SUBWHOLE));
end;
end;
end;
{*****************************************************************************
taicpu Constructors
*****************************************************************************}
constructor taicpu.op_none(op : tasmop);
begin
inherited create(op);
end;
constructor taicpu.op_reg(op : tasmop;_op1 : tregister);
begin
inherited create(op);
ops:=1;
loadreg(0,_op1);
end;
constructor taicpu.op_const(op : tasmop;_op1 : longint);
begin
inherited create(op);
ops:=1;
loadconst(0,aword(_op1));
end;
constructor taicpu.op_reg_reg(op : tasmop;_op1,_op2 : tregister);
begin
inherited create(op);
ops:=2;
loadreg(0,_op1);
loadreg(1,_op2);
end;
constructor taicpu.op_reg_const(op:tasmop; _op1: tregister; _op2: aword);
begin
inherited create(op);
ops:=2;
loadreg(0,_op1);
loadconst(1,aword(_op2));
end;
constructor taicpu.op_ref_regset(op:tasmop; _op1: treference; _op2: tcpuregisterset);
begin
inherited create(op);
ops:=2;
loadref(0,_op1);
loadregset(1,_op2);
end;
constructor taicpu.op_reg_ref(op : tasmop;_op1 : tregister;const _op2 : treference);
begin
inherited create(op);
ops:=2;
loadreg(0,_op1);
loadref(1,_op2);
end;
constructor taicpu.op_reg_reg_reg(op : tasmop;_op1,_op2,_op3 : tregister);
begin
inherited create(op);
ops:=3;
loadreg(0,_op1);
loadreg(1,_op2);
loadreg(2,_op3);
end;
constructor taicpu.op_reg_reg_const(op : tasmop;_op1,_op2 : tregister; _op3: aword);
begin
inherited create(op);
ops:=3;
loadreg(0,_op1);
loadreg(1,_op2);
loadconst(2,aword(_op3));
end;
constructor taicpu.op_reg_reg_sym_ofs(op : tasmop;_op1,_op2 : tregister; _op3: tasmsymbol;_op3ofs: longint);
begin
inherited create(op);
ops:=3;
loadreg(0,_op1);
loadreg(1,_op2);
loadsymbol(0,_op3,_op3ofs);
end;
constructor taicpu.op_reg_reg_ref(op : tasmop;_op1,_op2 : tregister; const _op3: treference);
begin
inherited create(op);
ops:=3;
loadreg(0,_op1);
loadreg(1,_op2);
loadref(2,_op3);
end;
constructor taicpu.op_reg_reg_shifterop(op : tasmop;_op1,_op2 : tregister;_op3 : tshifterop);
begin
inherited create(op);
ops:=3;
loadreg(0,_op1);
loadreg(1,_op2);
loadshifterop(2,_op3);
end;
constructor taicpu.op_cond_sym(op : tasmop;cond:TAsmCond;_op1 : tasmsymbol);
begin
inherited create(op);
condition:=cond;
ops:=1;
loadsymbol(0,_op1,0);
end;
constructor taicpu.op_sym(op : tasmop;_op1 : tasmsymbol);
begin
inherited create(op);
ops:=1;
loadsymbol(0,_op1,0);
end;
constructor taicpu.op_sym_ofs(op : tasmop;_op1 : tasmsymbol;_op1ofs:longint);
begin
inherited create(op);
ops:=1;
loadsymbol(0,_op1,_op1ofs);
end;
constructor taicpu.op_reg_sym_ofs(op : tasmop;_op1 : tregister;_op2:tasmsymbol;_op2ofs : longint);
begin
inherited create(op);
ops:=2;
loadreg(0,_op1);
loadsymbol(1,_op2,_op2ofs);
end;
constructor taicpu.op_sym_ofs_ref(op : tasmop;_op1 : tasmsymbol;_op1ofs:longint;const _op2 : treference);
begin
inherited create(op);
ops:=2;
loadsymbol(0,_op1,_op1ofs);
loadref(1,_op2);
end;
{ ****************************** newra stuff *************************** }
function taicpu.is_same_reg_move: boolean;
begin
{ allow the register allocator to remove unnecessary moves }
result:=is_reg_move and (oper[0]^.reg=oper[1]^.reg);
end;
function taicpu.is_reg_move:boolean;
begin
result:=((opcode=A_MOV) or (opcode=A_MVF)) and
(condition=C_None) and
(ops=2) and
(oper[0]^.typ=top_reg) and
(oper[1]^.typ=top_reg);
end;
function taicpu.spilling_create_load(const ref:treference;r:tregister): tai;
begin
internalerror(200401261);
end;
function taicpu.spilling_create_store(r:tregister; const ref:treference): tai;
begin
internalerror(200401262);
end;
function taicpu.spilling_get_operation_type(opnr: longint): topertype;
begin
if opnr = 0 then
result := operand_write
else
result:=operand_read;
end;
procedure InitAsm;
begin
end;
procedure DoneAsm;
begin
end;
function setoppostfix(i : taicpu;pf : toppostfix) : taicpu;
begin
i.oppostfix:=pf;
result:=i;
end;
function setroundingmode(i : taicpu;rm : troundingmode) : taicpu;
begin
i.roundingmode:=rm;
result:=i;
end;
function setcondition(i : taicpu;c : tasmcond) : taicpu;
begin
i.condition:=c;
result:=i;
end;
procedure insertpcrelativedata(list,listtoinsert : taasmoutput);
var
curpos : longint;
lastpos : longint;
curop : longint;
curtai : tai;
curdatatai,hp : tai;
curdata : taasmoutput;
l : tasmlabel;
begin
curdata:=taasmoutput.create;
lastpos:=-1;
curpos:=0;
curtai:=tai(list.first);
while assigned(curtai) do
begin
{ instruction? }
if curtai.typ=ait_instruction then
begin
{ walk through all operand of the instruction }
for curop:=0 to taicpu(curtai).ops-1 do
begin
{ reference? }
if (taicpu(curtai).oper[curop]^.typ=top_ref) then
begin
{ pc relative symbol? }
curdatatai:=tai(taicpu(curtai).oper[curop]^.ref^.symboldata);
if assigned(curdatatai) then
begin
{ if yes, insert till next symbol }
repeat
hp:=tai(curdatatai.next);
listtoinsert.remove(curdatatai);
curdata.concat(curdatatai);
curdatatai:=hp;
until (curdatatai=nil) or (curdatatai.typ=ait_label);
if lastpos=-1 then
lastpos:=curpos;
end;
end;
end;
inc(curpos);
end;
if (curpos-lastpos)>1020 then
begin
lastpos:=curpos;
hp:=tai(curtai.next);
objectlibrary.getlabel(l);
curdata.insert(taicpu.op_sym(A_B,l));
curdata.concat(tai_label.create(l));
list.insertlistafter(curtai,curdata);
curtai:=hp;
end
else
curtai:=tai(curtai.next);
end;
list.concatlist(curdata);
curdata.free;
end;
end.
{
$Log$
Revision 1.25 2004-01-26 19:05:56 florian
* fixed several arm issues
Revision 1.24 2004/01/24 20:19:46 florian
* fixed some spilling stuff
+ not(<int64>) implemented
+ small set comparisations implemented
Revision 1.23 2004/01/23 15:12:49 florian
* fixed generic shl/shr operations
+ added register allocation hook calls for arm specific operand types:
register set and shifter op
Revision 1.22 2004/01/21 19:01:03 florian
* fixed handling of max. distance of pc relative symbols
Revision 1.21 2004/01/20 21:02:55 florian
* fixed symbol type writing for arm-linux
* fixed assembler generation for abs
Revision 1.20 2003/12/28 16:20:09 jonas
- removed unused methods from old generic spilling code
Revision 1.19 2003/12/26 14:02:30 peter
* sparc updates
* use registertype in spill_register
Revision 1.18 2003/12/18 17:06:21 florian
* arm compiler compilation fixed
Revision 1.17 2003/12/03 17:39:05 florian
* fixed several arm calling conventions issues
* fixed reference reading in the assembler reader
* fixed a_loadaddr_ref_reg
Revision 1.16 2003/11/30 19:35:29 florian
* fixed several arm related problems
Revision 1.15 2003/11/29 17:36:56 peter
* fixed is_move
Revision 1.14 2003/11/24 15:17:37 florian
* changed some types to prevend range check errors
Revision 1.13 2003/11/02 14:30:03 florian
* fixed ARM for new reg. allocation scheme
Revision 1.12 2003/09/11 11:54:59 florian
* improved arm code generation
* move some protected and private field around
* the temp. register for register parameters/arguments are now released
before the move to the parameter register is done. This improves
the code in a lot of cases.
Revision 1.11 2003/09/06 11:21:49 florian
* fixed stm and ldm to be usable with preindex operand
Revision 1.10 2003/09/04 21:07:03 florian
* ARM compiler compiles again
Revision 1.9 2003/09/04 00:15:29 florian
* first bunch of adaptions of arm compiler for new register type
Revision 1.8 2003/09/03 11:18:37 florian
* fixed arm concatcopy
+ arm support in the common compiler sources added
* moved some generic cg code around
+ tfputype added
* ...
Revision 1.7 2003/08/29 21:36:28 florian
* fixed procedure entry/exit code
* started to fix reference handling
Revision 1.6 2003/08/28 00:05:29 florian
* today's arm patches
Revision 1.5 2003/08/27 00:27:56 florian
+ same procedure as very day: today's work on arm
Revision 1.4 2003/08/25 23:20:38 florian
+ started to implement FPU support for the ARM
* fixed a lot of other things
Revision 1.3 2003/08/24 12:27:26 florian
* continued to work on the arm port
Revision 1.2 2003/08/20 15:50:12 florian
* more arm stuff
Revision 1.1 2003/08/16 13:23:01 florian
* several arm related stuff fixed
}
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