mirror of
https://gitlab.com/freepascal.org/fpc/source.git
synced 2025-10-31 02:51:37 +01:00
1472 lines
54 KiB
ObjectPascal
1472 lines
54 KiB
ObjectPascal
{
|
|
$Id$
|
|
Copyright (c) 2000-2002 by Florian Klaempfl and Jonas Maebe
|
|
|
|
Code generation for add nodes on the PowerPC
|
|
|
|
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 nppcadd;
|
|
|
|
{$i fpcdefs.inc}
|
|
|
|
interface
|
|
|
|
uses
|
|
node,nadd,ncgadd,cpubase;
|
|
|
|
type
|
|
tppcaddnode = class(tcgaddnode)
|
|
function pass_1: tnode; override;
|
|
procedure pass_2;override;
|
|
private
|
|
procedure pass_left_and_right;
|
|
procedure load_left_right(cmpop, load_constants: boolean);
|
|
function getresflags : tresflags;
|
|
procedure emit_compare(unsigned : boolean);
|
|
procedure second_addfloat;override;
|
|
procedure second_addboolean;override;
|
|
procedure second_addsmallset;override;
|
|
{$ifdef SUPPORT_MMX}
|
|
procedure second_addmmx;override;
|
|
{$endif SUPPORT_MMX}
|
|
procedure second_add64bit;override;
|
|
end;
|
|
|
|
implementation
|
|
|
|
uses
|
|
globtype,systems,
|
|
cutils,verbose,globals,
|
|
symconst,symdef,paramgr,
|
|
aasmbase,aasmtai,aasmcpu,defutil,htypechk,
|
|
cgbase,cpuinfo,pass_1,pass_2,regvars,
|
|
cpupara,cgcpu,cgutils,
|
|
ncon,nset,
|
|
ncgutil,tgobj,rgobj,rgcpu,cgobj,cg64f32;
|
|
|
|
|
|
{*****************************************************************************
|
|
Pass 1
|
|
*****************************************************************************}
|
|
|
|
function tppcaddnode.pass_1: tnode;
|
|
begin
|
|
resulttypepass(left);
|
|
if (nodetype in [equaln,unequaln]) and
|
|
(left.resulttype.def.deftype = orddef) and
|
|
is_64bit(left.resulttype.def) then
|
|
begin
|
|
result := nil;
|
|
firstpass(left);
|
|
firstpass(right);
|
|
expectloc := LOC_FLAGS;
|
|
calcregisters(self,2,0,0);
|
|
exit;
|
|
end;
|
|
result := inherited pass_1;
|
|
end;
|
|
|
|
|
|
{*****************************************************************************
|
|
Helpers
|
|
*****************************************************************************}
|
|
|
|
procedure tppcaddnode.pass_left_and_right;
|
|
begin
|
|
{ calculate the operator which is more difficult }
|
|
firstcomplex(self);
|
|
|
|
{ in case of constant put it to the left }
|
|
if (left.nodetype=ordconstn) then
|
|
swapleftright;
|
|
|
|
secondpass(left);
|
|
secondpass(right);
|
|
end;
|
|
|
|
|
|
procedure tppcaddnode.load_left_right(cmpop, load_constants: boolean);
|
|
|
|
procedure load_node(var n: tnode);
|
|
begin
|
|
case n.location.loc of
|
|
LOC_REGISTER:
|
|
if not cmpop then
|
|
begin
|
|
location.register := n.location.register;
|
|
if is_64bit(n.resulttype.def) then
|
|
location.register64.reghi := n.location.register64.reghi;
|
|
end;
|
|
LOC_REFERENCE,LOC_CREFERENCE:
|
|
begin
|
|
location_force_reg(exprasmlist,n.location,def_cgsize(n.resulttype.def),false);
|
|
if not cmpop then
|
|
begin
|
|
location.register := n.location.register;
|
|
if is_64bit(n.resulttype.def) then
|
|
location.register64.reghi := n.location.register64.reghi;
|
|
end;
|
|
end;
|
|
LOC_CONSTANT:
|
|
begin
|
|
if load_constants then
|
|
begin
|
|
location_force_reg(exprasmlist,n.location,def_cgsize(n.resulttype.def),false);
|
|
if not cmpop then
|
|
location.register := n.location.register;
|
|
if is_64bit(n.resulttype.def) then
|
|
location.register64.reghi := n.location.register64.reghi;
|
|
end;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
begin
|
|
load_node(left);
|
|
load_node(right);
|
|
if not(cmpop) and
|
|
(location.register = NR_NO) then
|
|
begin
|
|
location.register := cg.getintregister(exprasmlist,OS_INT);
|
|
if is_64bit(resulttype.def) then
|
|
location.register64.reghi := cg.getintregister(exprasmlist,OS_INT);
|
|
end;
|
|
end;
|
|
|
|
|
|
function tppcaddnode.getresflags : tresflags;
|
|
begin
|
|
if (left.resulttype.def.deftype <> floatdef) then
|
|
result.cr := RS_CR0
|
|
else
|
|
result.cr := RS_CR1;
|
|
case nodetype of
|
|
equaln : result.flag:=F_EQ;
|
|
unequaln : result.flag:=F_NE;
|
|
else
|
|
if nf_swaped in flags then
|
|
case nodetype of
|
|
ltn : result.flag:=F_GT;
|
|
lten : result.flag:=F_GE;
|
|
gtn : result.flag:=F_LT;
|
|
gten : result.flag:=F_LE;
|
|
end
|
|
else
|
|
case nodetype of
|
|
ltn : result.flag:=F_LT;
|
|
lten : result.flag:=F_LE;
|
|
gtn : result.flag:=F_GT;
|
|
gten : result.flag:=F_GE;
|
|
end;
|
|
end
|
|
end;
|
|
|
|
|
|
procedure tppcaddnode.emit_compare(unsigned: boolean);
|
|
var
|
|
op : tasmop;
|
|
tmpreg : tregister;
|
|
useconst : boolean;
|
|
begin
|
|
// get the constant on the right if there is one
|
|
if (left.location.loc = LOC_CONSTANT) then
|
|
swapleftright;
|
|
// can we use an immediate, or do we have to load the
|
|
// constant in a register first?
|
|
if (right.location.loc = LOC_CONSTANT) then
|
|
begin
|
|
{$ifdef dummy}
|
|
if (right.location.size in [OS_64,OS_S64]) and (hi(right.location.value64)<>0) and ((hi(right.location.value64)<>$ffffffff) or unsigned) then
|
|
internalerror(2002080301);
|
|
{$endif extdebug}
|
|
if (nodetype in [equaln,unequaln]) then
|
|
if (unsigned and
|
|
(aword(right.location.value) > high(word))) or
|
|
(not unsigned and
|
|
(aint(right.location.value) < low(smallint)) or
|
|
(aint(right.location.value) > high(smallint))) then
|
|
{ we can then maybe use a constant in the 'othersigned' case
|
|
(the sign doesn't matter for // equal/unequal)}
|
|
unsigned := not unsigned;
|
|
|
|
if (unsigned and
|
|
(aword(right.location.value) <= high(word))) or
|
|
(not(unsigned) and
|
|
(aint(right.location.value) >= low(smallint)) and
|
|
(aint(right.location.value) <= high(smallint))) then
|
|
useconst := true
|
|
else
|
|
begin
|
|
useconst := false;
|
|
tmpreg := cg.getintregister(exprasmlist,OS_INT);
|
|
cg.a_load_const_reg(exprasmlist,OS_INT,
|
|
right.location.value,tmpreg);
|
|
end
|
|
end
|
|
else
|
|
useconst := false;
|
|
location.loc := LOC_FLAGS;
|
|
location.resflags := getresflags;
|
|
if not unsigned then
|
|
if useconst then
|
|
op := A_CMPWI
|
|
else
|
|
op := A_CMPW
|
|
else
|
|
if useconst then
|
|
op := A_CMPLWI
|
|
else
|
|
op := A_CMPLW;
|
|
|
|
if (right.location.loc = LOC_CONSTANT) then
|
|
begin
|
|
if useconst then
|
|
exprasmlist.concat(taicpu.op_reg_const(op,left.location.register,longint(right.location.value)))
|
|
else
|
|
exprasmlist.concat(taicpu.op_reg_reg(op,left.location.register,tmpreg));
|
|
end
|
|
else
|
|
exprasmlist.concat(taicpu.op_reg_reg(op,
|
|
left.location.register,right.location.register));
|
|
end;
|
|
|
|
|
|
{*****************************************************************************
|
|
AddBoolean
|
|
*****************************************************************************}
|
|
|
|
procedure tppcaddnode.second_addboolean;
|
|
var
|
|
cgop : TOpCg;
|
|
cgsize : TCgSize;
|
|
cmpop,
|
|
isjump : boolean;
|
|
otl,ofl : tasmlabel;
|
|
begin
|
|
{ calculate the operator which is more difficult }
|
|
firstcomplex(self);
|
|
|
|
cmpop:=false;
|
|
if (torddef(left.resulttype.def).typ=bool8bit) or
|
|
(torddef(right.resulttype.def).typ=bool8bit) then
|
|
cgsize:=OS_8
|
|
else
|
|
if (torddef(left.resulttype.def).typ=bool16bit) or
|
|
(torddef(right.resulttype.def).typ=bool16bit) then
|
|
cgsize:=OS_16
|
|
else
|
|
cgsize:=OS_32;
|
|
|
|
if (cs_full_boolean_eval in aktlocalswitches) or
|
|
(nodetype in [unequaln,ltn,lten,gtn,gten,equaln,xorn]) then
|
|
begin
|
|
if left.nodetype in [ordconstn,realconstn] then
|
|
swapleftright;
|
|
|
|
isjump:=(left.expectloc=LOC_JUMP);
|
|
if isjump then
|
|
begin
|
|
otl:=truelabel;
|
|
objectlibrary.getlabel(truelabel);
|
|
ofl:=falselabel;
|
|
objectlibrary.getlabel(falselabel);
|
|
end;
|
|
secondpass(left);
|
|
if left.location.loc in [LOC_FLAGS,LOC_JUMP] then
|
|
location_force_reg(exprasmlist,left.location,cgsize,false);
|
|
if isjump then
|
|
begin
|
|
truelabel:=otl;
|
|
falselabel:=ofl;
|
|
end
|
|
else if left.location.loc=LOC_JUMP then
|
|
internalerror(2003122901);
|
|
|
|
isjump:=(right.expectloc=LOC_JUMP);
|
|
if isjump then
|
|
begin
|
|
otl:=truelabel;
|
|
objectlibrary.getlabel(truelabel);
|
|
ofl:=falselabel;
|
|
objectlibrary.getlabel(falselabel);
|
|
end;
|
|
secondpass(right);
|
|
if right.location.loc in [LOC_FLAGS,LOC_JUMP] then
|
|
location_force_reg(exprasmlist,right.location,cgsize,false);
|
|
if isjump then
|
|
begin
|
|
truelabel:=otl;
|
|
falselabel:=ofl;
|
|
end
|
|
else if right.location.loc=LOC_JUMP then
|
|
internalerror(200312292);
|
|
|
|
cmpop := nodetype in [ltn,lten,gtn,gten,equaln,unequaln];
|
|
|
|
{ set result location }
|
|
if not cmpop then
|
|
location_reset(location,LOC_REGISTER,def_cgsize(resulttype.def))
|
|
else
|
|
location_reset(location,LOC_FLAGS,OS_NO);
|
|
|
|
load_left_right(cmpop,false);
|
|
|
|
if (left.location.loc = LOC_CONSTANT) then
|
|
swapleftright;
|
|
|
|
{ compare the }
|
|
case nodetype of
|
|
ltn,lten,gtn,gten,
|
|
equaln,unequaln :
|
|
begin
|
|
if (right.location.loc <> LOC_CONSTANT) then
|
|
exprasmlist.concat(taicpu.op_reg_reg(A_CMPLW,
|
|
left.location.register,right.location.register))
|
|
else
|
|
exprasmlist.concat(taicpu.op_reg_const(A_CMPLWI,
|
|
left.location.register,longint(right.location.value)));
|
|
location.resflags := getresflags;
|
|
end;
|
|
else
|
|
begin
|
|
case nodetype of
|
|
xorn :
|
|
cgop:=OP_XOR;
|
|
orn :
|
|
cgop:=OP_OR;
|
|
andn :
|
|
cgop:=OP_AND;
|
|
else
|
|
internalerror(200203247);
|
|
end;
|
|
|
|
if right.location.loc <> LOC_CONSTANT then
|
|
cg.a_op_reg_reg_reg(exprasmlist,cgop,OS_INT,
|
|
left.location.register,right.location.register,
|
|
location.register)
|
|
else
|
|
cg.a_op_const_reg_reg(exprasmlist,cgop,OS_INT,
|
|
right.location.value,left.location.register,
|
|
location.register);
|
|
end;
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
// just to make sure we free the right registers
|
|
cmpop := true;
|
|
case nodetype of
|
|
andn,
|
|
orn :
|
|
begin
|
|
location_reset(location,LOC_JUMP,OS_NO);
|
|
case nodetype of
|
|
andn :
|
|
begin
|
|
otl:=truelabel;
|
|
objectlibrary.getlabel(truelabel);
|
|
secondpass(left);
|
|
maketojumpbool(exprasmlist,left,lr_load_regvars);
|
|
cg.a_label(exprasmlist,truelabel);
|
|
truelabel:=otl;
|
|
end;
|
|
orn :
|
|
begin
|
|
ofl:=falselabel;
|
|
objectlibrary.getlabel(falselabel);
|
|
secondpass(left);
|
|
maketojumpbool(exprasmlist,left,lr_load_regvars);
|
|
cg.a_label(exprasmlist,falselabel);
|
|
falselabel:=ofl;
|
|
end;
|
|
else
|
|
internalerror(200403181);
|
|
end;
|
|
secondpass(right);
|
|
maketojumpbool(exprasmlist,right,lr_load_regvars);
|
|
end;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
|
|
{*****************************************************************************
|
|
AddFloat
|
|
*****************************************************************************}
|
|
|
|
procedure tppcaddnode.second_addfloat;
|
|
var
|
|
op : TAsmOp;
|
|
cmpop : boolean;
|
|
begin
|
|
pass_left_and_right;
|
|
|
|
cmpop:=false;
|
|
case nodetype of
|
|
addn :
|
|
op:=A_FADD;
|
|
muln :
|
|
op:=A_FMUL;
|
|
subn :
|
|
op:=A_FSUB;
|
|
slashn :
|
|
op:=A_FDIV;
|
|
ltn,lten,gtn,gten,
|
|
equaln,unequaln :
|
|
begin
|
|
op:=A_FCMPO;
|
|
cmpop:=true;
|
|
end;
|
|
else
|
|
internalerror(200403182);
|
|
end;
|
|
|
|
// get the operands in the correct order, there are no special cases
|
|
// here, everything is register-based
|
|
if nf_swaped in flags then
|
|
swapleftright;
|
|
|
|
// put both operands in a register
|
|
location_force_fpureg(exprasmlist,right.location,true);
|
|
location_force_fpureg(exprasmlist,left.location,true);
|
|
|
|
// initialize de result
|
|
if not cmpop then
|
|
begin
|
|
location_reset(location,LOC_FPUREGISTER,def_cgsize(resulttype.def));
|
|
if left.location.loc = LOC_FPUREGISTER then
|
|
location.register := left.location.register
|
|
else if right.location.loc = LOC_FPUREGISTER then
|
|
location.register := right.location.register
|
|
else
|
|
location.register := cg.getfpuregister(exprasmlist,location.size);
|
|
end
|
|
else
|
|
begin
|
|
location_reset(location,LOC_FLAGS,OS_NO);
|
|
location.resflags := getresflags;
|
|
end;
|
|
|
|
// emit the actual operation
|
|
if not cmpop then
|
|
begin
|
|
exprasmlist.concat(taicpu.op_reg_reg_reg(op,
|
|
location.register,left.location.register,
|
|
right.location.register))
|
|
end
|
|
else
|
|
begin
|
|
exprasmlist.concat(taicpu.op_reg_reg_reg(op,
|
|
newreg(R_SPECIALREGISTER,location.resflags.cr,R_SUBNONE),left.location.register,right.location.register))
|
|
end;
|
|
end;
|
|
|
|
{*****************************************************************************
|
|
AddSmallSet
|
|
*****************************************************************************}
|
|
|
|
procedure tppcaddnode.second_addsmallset;
|
|
var
|
|
cgop : TOpCg;
|
|
tmpreg : tregister;
|
|
opdone,
|
|
cmpop : boolean;
|
|
begin
|
|
pass_left_and_right;
|
|
|
|
{ when a setdef is passed, it has to be a smallset }
|
|
if ((left.resulttype.def.deftype=setdef) and
|
|
(tsetdef(left.resulttype.def).settype<>smallset)) or
|
|
((right.resulttype.def.deftype=setdef) and
|
|
(tsetdef(right.resulttype.def).settype<>smallset)) then
|
|
internalerror(200203301);
|
|
|
|
opdone := false;
|
|
cmpop:=nodetype in [equaln,unequaln,lten,gten];
|
|
|
|
{ set result location }
|
|
if not cmpop then
|
|
location_reset(location,LOC_REGISTER,def_cgsize(resulttype.def))
|
|
else
|
|
location_reset(location,LOC_FLAGS,OS_NO);
|
|
|
|
load_left_right(cmpop,false);
|
|
|
|
if not(cmpop) and
|
|
(location.register = NR_NO) then
|
|
location.register := cg.getintregister(exprasmlist,OS_INT);
|
|
|
|
case nodetype of
|
|
addn :
|
|
begin
|
|
if (nf_swaped in flags) and (left.nodetype=setelementn) then
|
|
swapleftright;
|
|
{ are we adding set elements ? }
|
|
if right.nodetype=setelementn then
|
|
begin
|
|
{ no range support for smallsets! }
|
|
if assigned(tsetelementnode(right).right) then
|
|
internalerror(43244);
|
|
if (right.location.loc = LOC_CONSTANT) then
|
|
cg.a_op_const_reg_reg(exprasmlist,OP_OR,OS_INT,
|
|
aint(aword(1) shl aword(right.location.value)),
|
|
left.location.register,location.register)
|
|
else
|
|
begin
|
|
tmpreg := cg.getintregister(exprasmlist,OS_INT);
|
|
cg.a_load_const_reg(exprasmlist,OS_INT,1,tmpreg);
|
|
cg.a_op_reg_reg(exprasmlist,OP_SHL,OS_INT,
|
|
right.location.register,tmpreg);
|
|
if left.location.loc <> LOC_CONSTANT then
|
|
cg.a_op_reg_reg_reg(exprasmlist,OP_OR,OS_INT,tmpreg,
|
|
left.location.register,location.register)
|
|
else
|
|
cg.a_op_const_reg_reg(exprasmlist,OP_OR,OS_INT,
|
|
left.location.value,tmpreg,location.register);
|
|
end;
|
|
opdone := true;
|
|
end
|
|
else
|
|
cgop := OP_OR;
|
|
end;
|
|
symdifn :
|
|
cgop:=OP_XOR;
|
|
muln :
|
|
cgop:=OP_AND;
|
|
subn :
|
|
begin
|
|
cgop:=OP_AND;
|
|
if (not(nf_swaped in flags)) then
|
|
if (right.location.loc=LOC_CONSTANT) then
|
|
right.location.value := not(right.location.value)
|
|
else
|
|
opdone := true
|
|
else if (left.location.loc=LOC_CONSTANT) then
|
|
left.location.value := not(left.location.value)
|
|
else
|
|
begin
|
|
swapleftright;
|
|
opdone := true;
|
|
end;
|
|
if opdone then
|
|
begin
|
|
if left.location.loc = LOC_CONSTANT then
|
|
begin
|
|
tmpreg := cg.getintregister(exprasmlist,OS_INT);
|
|
cg.a_load_const_reg(exprasmlist,OS_INT,
|
|
left.location.value,tmpreg);
|
|
exprasmlist.concat(taicpu.op_reg_reg_reg(A_ANDC,
|
|
location.register,tmpreg,right.location.register));
|
|
end
|
|
else
|
|
exprasmlist.concat(taicpu.op_reg_reg_reg(A_ANDC,
|
|
location.register,left.location.register,
|
|
right.location.register));
|
|
end;
|
|
end;
|
|
equaln,
|
|
unequaln :
|
|
begin
|
|
emit_compare(true);
|
|
opdone := true;
|
|
end;
|
|
lten,gten:
|
|
begin
|
|
If (not(nf_swaped in flags) and
|
|
(nodetype = lten)) or
|
|
((nf_swaped in flags) and
|
|
(nodetype = gten)) then
|
|
swapleftright;
|
|
// now we have to check whether left >= right
|
|
tmpreg := cg.getintregister(exprasmlist,OS_INT);
|
|
if left.location.loc = LOC_CONSTANT then
|
|
begin
|
|
cg.a_op_const_reg_reg(exprasmlist,OP_AND,OS_INT,
|
|
not(left.location.value),right.location.register,tmpreg);
|
|
exprasmlist.concat(taicpu.op_reg_const(A_CMPWI,tmpreg,0));
|
|
// the two instructions above should be folded together by
|
|
// the peepholeoptimizer
|
|
end
|
|
else
|
|
begin
|
|
if right.location.loc = LOC_CONSTANT then
|
|
begin
|
|
cg.a_load_const_reg(exprasmlist,OS_INT,
|
|
right.location.value,tmpreg);
|
|
exprasmlist.concat(taicpu.op_reg_reg_reg(A_ANDC_,tmpreg,
|
|
tmpreg,left.location.register));
|
|
end
|
|
else
|
|
exprasmlist.concat(taicpu.op_reg_reg_reg(A_ANDC_,tmpreg,
|
|
right.location.register,left.location.register));
|
|
end;
|
|
location.resflags.cr := RS_CR0;
|
|
location.resflags.flag := F_EQ;
|
|
opdone := true;
|
|
end;
|
|
else
|
|
internalerror(2002072701);
|
|
end;
|
|
|
|
if not opdone then
|
|
begin
|
|
// these are all commutative operations
|
|
if (left.location.loc = LOC_CONSTANT) then
|
|
swapleftright;
|
|
if (right.location.loc = LOC_CONSTANT) then
|
|
cg.a_op_const_reg_reg(exprasmlist,cgop,OS_INT,
|
|
right.location.value,left.location.register,
|
|
location.register)
|
|
else
|
|
cg.a_op_reg_reg_reg(exprasmlist,cgop,OS_INT,
|
|
right.location.register,left.location.register,
|
|
location.register);
|
|
end;
|
|
end;
|
|
|
|
{*****************************************************************************
|
|
Add64bit
|
|
*****************************************************************************}
|
|
|
|
procedure tppcaddnode.second_add64bit;
|
|
var
|
|
op : TOpCG;
|
|
op1,op2 : TAsmOp;
|
|
cmpop,
|
|
unsigned : boolean;
|
|
|
|
|
|
procedure emit_cmp64_hi;
|
|
|
|
var
|
|
oldleft, oldright: tlocation;
|
|
begin
|
|
// put the high part of the location in the low part
|
|
location_copy(oldleft,left.location);
|
|
location_copy(oldright,right.location);
|
|
if left.location.loc = LOC_CONSTANT then
|
|
left.location.value64 := left.location.value64 shr 32
|
|
else
|
|
left.location.register64.reglo := left.location.register64.reghi;
|
|
if right.location.loc = LOC_CONSTANT then
|
|
right.location.value64 := right.location.value64 shr 32
|
|
else
|
|
right.location.register64.reglo := right.location.register64.reghi;
|
|
|
|
// and call the normal emit_compare
|
|
emit_compare(unsigned);
|
|
location_copy(left.location,oldleft);
|
|
location_copy(right.location,oldright);
|
|
end;
|
|
|
|
|
|
procedure emit_cmp64_lo;
|
|
|
|
begin
|
|
emit_compare(true);
|
|
end;
|
|
|
|
|
|
procedure firstjmp64bitcmp;
|
|
|
|
var
|
|
oldnodetype: tnodetype;
|
|
begin
|
|
{$ifdef OLDREGVARS}
|
|
load_all_regvars(exprasmlist);
|
|
{$endif OLDREGVARS}
|
|
{ the jump the sequence is a little bit hairy }
|
|
case nodetype of
|
|
ltn,gtn:
|
|
begin
|
|
cg.a_jmp_flags(exprasmlist,getresflags,truelabel);
|
|
{ cheat a little bit for the negative test }
|
|
toggleflag(nf_swaped);
|
|
cg.a_jmp_flags(exprasmlist,getresflags,falselabel);
|
|
toggleflag(nf_swaped);
|
|
end;
|
|
lten,gten:
|
|
begin
|
|
oldnodetype:=nodetype;
|
|
if nodetype=lten then
|
|
nodetype:=ltn
|
|
else
|
|
nodetype:=gtn;
|
|
cg.a_jmp_flags(exprasmlist,getresflags,truelabel);
|
|
{ cheat for the negative test }
|
|
if nodetype=ltn then
|
|
nodetype:=gtn
|
|
else
|
|
nodetype:=ltn;
|
|
cg.a_jmp_flags(exprasmlist,getresflags,falselabel);
|
|
nodetype:=oldnodetype;
|
|
end;
|
|
equaln:
|
|
begin
|
|
nodetype := unequaln;
|
|
cg.a_jmp_flags(exprasmlist,getresflags,falselabel);
|
|
nodetype := equaln;
|
|
end;
|
|
unequaln:
|
|
begin
|
|
cg.a_jmp_flags(exprasmlist,getresflags,truelabel);
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure secondjmp64bitcmp;
|
|
|
|
begin
|
|
{ the jump the sequence is a little bit hairy }
|
|
case nodetype of
|
|
ltn,gtn,lten,gten:
|
|
begin
|
|
{ the comparison of the low dword always has }
|
|
{ to be always unsigned! }
|
|
cg.a_jmp_flags(exprasmlist,getresflags,truelabel);
|
|
cg.a_jmp_always(exprasmlist,falselabel);
|
|
end;
|
|
equaln:
|
|
begin
|
|
nodetype := unequaln;
|
|
cg.a_jmp_flags(exprasmlist,getresflags,falselabel);
|
|
cg.a_jmp_always(exprasmlist,truelabel);
|
|
nodetype := equaln;
|
|
end;
|
|
unequaln:
|
|
begin
|
|
cg.a_jmp_flags(exprasmlist,getresflags,truelabel);
|
|
cg.a_jmp_always(exprasmlist,falselabel);
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
|
|
var
|
|
tempreg64: tregister64;
|
|
|
|
begin
|
|
firstcomplex(self);
|
|
|
|
pass_left_and_right;
|
|
|
|
cmpop:=false;
|
|
unsigned:=((left.resulttype.def.deftype=orddef) and
|
|
(torddef(left.resulttype.def).typ=u64bit)) or
|
|
((right.resulttype.def.deftype=orddef) and
|
|
(torddef(right.resulttype.def).typ=u64bit));
|
|
case nodetype of
|
|
addn :
|
|
begin
|
|
op:=OP_ADD;
|
|
end;
|
|
subn :
|
|
begin
|
|
op:=OP_SUB;
|
|
end;
|
|
ltn,lten,
|
|
gtn,gten,
|
|
equaln,unequaln:
|
|
begin
|
|
op:=OP_NONE;
|
|
cmpop:=true;
|
|
end;
|
|
xorn:
|
|
op:=OP_XOR;
|
|
orn:
|
|
op:=OP_OR;
|
|
andn:
|
|
op:=OP_AND;
|
|
muln:
|
|
begin
|
|
{ should be handled in pass_1 (JM) }
|
|
internalerror(200109051);
|
|
end;
|
|
else
|
|
internalerror(2002072705);
|
|
end;
|
|
|
|
if not cmpop then
|
|
location_reset(location,LOC_REGISTER,def_cgsize(resulttype.def));
|
|
|
|
load_left_right(cmpop,(cs_check_overflow in aktlocalswitches) and
|
|
(nodetype in [addn,subn]));
|
|
|
|
if not(cs_check_overflow in aktlocalswitches) or
|
|
not(nodetype in [addn,subn]) then
|
|
begin
|
|
case nodetype of
|
|
ltn,lten,
|
|
gtn,gten:
|
|
begin
|
|
emit_cmp64_hi;
|
|
firstjmp64bitcmp;
|
|
emit_cmp64_lo;
|
|
secondjmp64bitcmp;
|
|
end;
|
|
equaln,unequaln:
|
|
begin
|
|
// instead of doing a complicated compare, do
|
|
// (left.hi xor right.hi) or (left.lo xor right.lo)
|
|
// (somewhate optimized so that no superfluous 'mr's are
|
|
// generated)
|
|
if (left.location.loc = LOC_CONSTANT) then
|
|
swapleftright;
|
|
if (right.location.loc = LOC_CONSTANT) then
|
|
begin
|
|
if left.location.loc = LOC_REGISTER then
|
|
begin
|
|
tempreg64.reglo := left.location.register64.reglo;
|
|
tempreg64.reghi := left.location.register64.reghi;
|
|
end
|
|
else
|
|
begin
|
|
if (aint(right.location.value64) <> 0) then
|
|
tempreg64.reglo := cg.getintregister(exprasmlist,OS_32)
|
|
else
|
|
tempreg64.reglo := left.location.register64.reglo;
|
|
if ((right.location.value64 shr 32) <> 0) then
|
|
tempreg64.reghi := cg.getintregister(exprasmlist,OS_32)
|
|
else
|
|
tempreg64.reghi := left.location.register64.reghi;
|
|
end;
|
|
|
|
if (aint(right.location.value64) <> 0) then
|
|
{ negative values can be handled using SUB, }
|
|
{ positive values < 65535 using XOR. }
|
|
if (longint(right.location.value64) >= -32767) and
|
|
(longint(right.location.value64) < 0) then
|
|
cg.a_op_const_reg_reg(exprasmlist,OP_SUB,OS_INT,
|
|
aint(right.location.value64),
|
|
left.location.register64.reglo,tempreg64.reglo)
|
|
else
|
|
cg.a_op_const_reg_reg(exprasmlist,OP_XOR,OS_INT,
|
|
aint(right.location.value64),
|
|
left.location.register64.reglo,tempreg64.reglo);
|
|
|
|
if ((right.location.value64 shr 32) <> 0) then
|
|
if (longint(right.location.value64 shr 32) >= -32767) and
|
|
(longint(right.location.value64 shr 32) < 0) then
|
|
cg.a_op_const_reg_reg(exprasmlist,OP_SUB,OS_INT,
|
|
aint(right.location.value64 shr 32),
|
|
left.location.register64.reghi,tempreg64.reghi)
|
|
else
|
|
cg.a_op_const_reg_reg(exprasmlist,OP_XOR,OS_INT,
|
|
aint(right.location.value64 shr 32),
|
|
left.location.register64.reghi,tempreg64.reghi);
|
|
end
|
|
else
|
|
begin
|
|
tempreg64.reglo := cg.getintregister(exprasmlist,OS_INT);
|
|
tempreg64.reghi := cg.getintregister(exprasmlist,OS_INT);
|
|
cg64.a_op64_reg_reg_reg(exprasmlist,OP_XOR,location.size,
|
|
left.location.register64,right.location.register64,
|
|
tempreg64);
|
|
end;
|
|
|
|
cg.a_reg_alloc(exprasmlist,NR_R0);
|
|
exprasmlist.concat(taicpu.op_reg_reg_reg(A_OR_,NR_R0,
|
|
tempreg64.reglo,tempreg64.reghi));
|
|
cg.a_reg_dealloc(exprasmlist,NR_R0);
|
|
|
|
location_reset(location,LOC_FLAGS,OS_NO);
|
|
location.resflags := getresflags;
|
|
end;
|
|
xorn,orn,andn,addn:
|
|
begin
|
|
if (location.register64.reglo = NR_NO) then
|
|
begin
|
|
location.register64.reglo := cg.getintregister(exprasmlist,OS_INT);
|
|
location.register64.reghi := cg.getintregister(exprasmlist,OS_INT);
|
|
end;
|
|
|
|
if (left.location.loc = LOC_CONSTANT) then
|
|
swapleftright;
|
|
if (right.location.loc = LOC_CONSTANT) then
|
|
cg64.a_op64_const_reg_reg(exprasmlist,op,location.size,right.location.value64,
|
|
left.location.register64,location.register64)
|
|
else
|
|
cg64.a_op64_reg_reg_reg(exprasmlist,op,location.size,right.location.register64,
|
|
left.location.register64,location.register64);
|
|
end;
|
|
subn:
|
|
begin
|
|
if (nf_swaped in flags) then
|
|
swapleftright;
|
|
|
|
if left.location.loc <> LOC_CONSTANT then
|
|
begin
|
|
if (location.register64.reglo = NR_NO) then
|
|
begin
|
|
location.register64.reglo := cg.getintregister(exprasmlist,OS_INT);
|
|
location.register64.reghi := cg.getintregister(exprasmlist,OS_INT);
|
|
end;
|
|
if right.location.loc <> LOC_CONSTANT then
|
|
// reg64 - reg64
|
|
cg64.a_op64_reg_reg_reg(exprasmlist,OP_SUB,location.size,
|
|
right.location.register64,left.location.register64,
|
|
location.register64)
|
|
else
|
|
// reg64 - const64
|
|
cg64.a_op64_const_reg_reg(exprasmlist,OP_SUB,location.size,
|
|
right.location.value64,left.location.register64,
|
|
location.register64)
|
|
end
|
|
else if ((left.location.value64 shr 32) = 0) then
|
|
begin
|
|
if (location.register64.reglo = NR_NO) then
|
|
begin
|
|
location.register64.reglo := cg.getintregister(exprasmlist,OS_INT);
|
|
location.register64.reghi := cg.getintregister(exprasmlist,OS_INT);
|
|
end;
|
|
if (int64(left.location.value64) >= low(smallint)) and
|
|
(int64(left.location.value64) <= high(smallint)) then
|
|
begin
|
|
// consts16 - reg64
|
|
exprasmlist.concat(taicpu.op_reg_reg_const(A_SUBFIC,
|
|
location.register64.reglo,right.location.register64.reglo,
|
|
left.location.value));
|
|
end
|
|
else
|
|
begin
|
|
// const32 - reg64
|
|
location_force_reg(exprasmlist,left.location,
|
|
OS_32,true);
|
|
exprasmlist.concat(taicpu.op_reg_reg_reg(A_SUBC,
|
|
location.register64.reglo,left.location.register64.reglo,
|
|
right.location.register64.reglo));
|
|
end;
|
|
exprasmlist.concat(taicpu.op_reg_reg(A_SUBFZE,
|
|
location.register64.reghi,right.location.register64.reghi));
|
|
end
|
|
else if (aint(left.location.value64) = 0) then
|
|
begin
|
|
// (const32 shl 32) - reg64
|
|
if (location.register64.reglo = NR_NO) then
|
|
begin
|
|
location.register64.reglo := cg.getintregister(exprasmlist,OS_INT);
|
|
location.register64.reghi := cg.getintregister(exprasmlist,OS_INT);
|
|
end;
|
|
exprasmlist.concat(taicpu.op_reg_reg_const(A_SUBFIC,
|
|
location.register64.reglo,right.location.register64.reglo,0));
|
|
left.location.value64 := left.location.value64 shr 32;
|
|
location_force_reg(exprasmlist,left.location,OS_32,true);
|
|
exprasmlist.concat(taicpu.op_reg_reg_reg(A_SUBFE,
|
|
location.register64.reghi,right.location.register64.reghi,
|
|
left.location.register));
|
|
end
|
|
else
|
|
begin
|
|
// const64 - reg64
|
|
location_force_reg(exprasmlist,left.location,
|
|
def_cgsize(left.resulttype.def),false);
|
|
if (left.location.loc = LOC_REGISTER) then
|
|
location.register64 := left.location.register64
|
|
else if (location.register64.reglo = NR_NO) then
|
|
begin
|
|
location.register64.reglo := cg.getintregister(exprasmlist,OS_INT);
|
|
location.register64.reghi := cg.getintregister(exprasmlist,OS_INT);
|
|
end;
|
|
cg64.a_op64_reg_reg_reg(exprasmlist,OP_SUB,location.size,
|
|
right.location.register64,left.location.register64,
|
|
location.register64);
|
|
end;
|
|
end;
|
|
else
|
|
internalerror(2002072803);
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
if is_signed(resulttype.def) then
|
|
begin
|
|
case nodetype of
|
|
addn:
|
|
begin
|
|
op1 := A_ADDC;
|
|
op2 := A_ADDEO;
|
|
end;
|
|
subn:
|
|
begin
|
|
op1 := A_SUBC;
|
|
op2 := A_SUBFEO;
|
|
end;
|
|
else
|
|
internalerror(2002072806);
|
|
end
|
|
end
|
|
else
|
|
begin
|
|
case nodetype of
|
|
addn:
|
|
begin
|
|
op1 := A_ADDC;
|
|
op2 := A_ADDE;
|
|
end;
|
|
subn:
|
|
begin
|
|
op1 := A_SUBC;
|
|
op2 := A_SUBFE;
|
|
end;
|
|
end;
|
|
end;
|
|
exprasmlist.concat(taicpu.op_reg_reg_reg(op1,location.register64.reglo,
|
|
left.location.register64.reglo,right.location.register64.reglo));
|
|
exprasmlist.concat(taicpu.op_reg_reg_reg(op2,location.register64.reghi,
|
|
right.location.register64.reghi,left.location.register64.reghi));
|
|
if not(is_signed(resulttype.def)) then
|
|
if nodetype = addn then
|
|
exprasmlist.concat(taicpu.op_reg_reg(A_CMPLW,location.register64.reghi,left.location.register64.reghi))
|
|
else
|
|
exprasmlist.concat(taicpu.op_reg_reg(A_CMPLW,left.location.register64.reghi,location.register64.reghi));
|
|
cg.g_overflowcheck(exprasmlist,location,resulttype.def);
|
|
end;
|
|
|
|
{ set result location }
|
|
{ (emit_compare sets it to LOC_FLAGS for compares, so set the }
|
|
{ real location only now) (JM) }
|
|
if cmpop and
|
|
not(nodetype in [equaln,unequaln]) then
|
|
location_reset(location,LOC_JUMP,OS_NO);
|
|
end;
|
|
|
|
|
|
{*****************************************************************************
|
|
AddMMX
|
|
*****************************************************************************}
|
|
|
|
{$ifdef SUPPORT_MMX}
|
|
procedure ti386addnode.second_addmmx;
|
|
var
|
|
op : TAsmOp;
|
|
cmpop : boolean;
|
|
mmxbase : tmmxtype;
|
|
hregister : tregister;
|
|
begin
|
|
pass_left_and_right;
|
|
|
|
cmpop:=false;
|
|
mmxbase:=mmx_type(left.resulttype.def);
|
|
case nodetype of
|
|
addn :
|
|
begin
|
|
if (cs_mmx_saturation in aktlocalswitches) then
|
|
begin
|
|
case mmxbase of
|
|
mmxs8bit:
|
|
op:=A_PADDSB;
|
|
mmxu8bit:
|
|
op:=A_PADDUSB;
|
|
mmxs16bit,mmxfixed16:
|
|
op:=A_PADDSB;
|
|
mmxu16bit:
|
|
op:=A_PADDUSW;
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
case mmxbase of
|
|
mmxs8bit,mmxu8bit:
|
|
op:=A_PADDB;
|
|
mmxs16bit,mmxu16bit,mmxfixed16:
|
|
op:=A_PADDW;
|
|
mmxs32bit,mmxu32bit:
|
|
op:=A_PADDD;
|
|
end;
|
|
end;
|
|
end;
|
|
muln :
|
|
begin
|
|
case mmxbase of
|
|
mmxs16bit,mmxu16bit:
|
|
op:=A_PMULLW;
|
|
mmxfixed16:
|
|
op:=A_PMULHW;
|
|
end;
|
|
end;
|
|
subn :
|
|
begin
|
|
if (cs_mmx_saturation in aktlocalswitches) then
|
|
begin
|
|
case mmxbase of
|
|
mmxs8bit:
|
|
op:=A_PSUBSB;
|
|
mmxu8bit:
|
|
op:=A_PSUBUSB;
|
|
mmxs16bit,mmxfixed16:
|
|
op:=A_PSUBSB;
|
|
mmxu16bit:
|
|
op:=A_PSUBUSW;
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
case mmxbase of
|
|
mmxs8bit,mmxu8bit:
|
|
op:=A_PSUBB;
|
|
mmxs16bit,mmxu16bit,mmxfixed16:
|
|
op:=A_PSUBW;
|
|
mmxs32bit,mmxu32bit:
|
|
op:=A_PSUBD;
|
|
end;
|
|
end;
|
|
end;
|
|
xorn:
|
|
op:=A_PXOR;
|
|
orn:
|
|
op:=A_POR;
|
|
andn:
|
|
op:=A_PAND;
|
|
else
|
|
internalerror(200403183);
|
|
end;
|
|
|
|
{ left and right no register? }
|
|
{ then one must be demanded }
|
|
if (left.location.loc<>LOC_MMXREGISTER) then
|
|
begin
|
|
if (right.location.loc=LOC_MMXREGISTER) then
|
|
begin
|
|
location_swap(left.location,right.location);
|
|
toggleflag(nf_swaped);
|
|
end
|
|
else
|
|
begin
|
|
{ register variable ? }
|
|
if (left.location.loc=LOC_CMMXREGISTER) then
|
|
begin
|
|
hregister:=rg.getregistermm(exprasmlist);
|
|
emit_reg_reg(A_MOVQ,S_NO,left.location.register,hregister);
|
|
end
|
|
else
|
|
begin
|
|
if not(left.location.loc in [LOC_REFERENCE,LOC_CREFERENCE]) then
|
|
internalerror(200203245);
|
|
|
|
location_release(exprasmlist,left.location);
|
|
|
|
hregister:=rg.getregistermm(exprasmlist);
|
|
emit_ref_reg(A_MOVQ,S_NO,left.location.reference,hregister);
|
|
end;
|
|
|
|
location_reset(left.location,LOC_MMXREGISTER,OS_NO);
|
|
left.location.register:=hregister;
|
|
end;
|
|
end;
|
|
|
|
{ at this point, left.location.loc should be LOC_MMXREGISTER }
|
|
if right.location.loc<>LOC_MMXREGISTER then
|
|
begin
|
|
if (nodetype=subn) and (nf_swaped in flags) then
|
|
begin
|
|
if right.location.loc=LOC_CMMXREGISTER then
|
|
begin
|
|
emit_reg_reg(A_MOVQ,S_NO,right.location.register,R_MM7);
|
|
emit_reg_reg(op,S_NO,left.location.register,R_MM7);
|
|
emit_reg_reg(A_MOVQ,S_NO,R_MM7,left.location.register);
|
|
end
|
|
else
|
|
begin
|
|
if not(left.location.loc in [LOC_REFERENCE,LOC_CREFERENCE]) then
|
|
internalerror(200203247);
|
|
emit_ref_reg(A_MOVQ,S_NO,right.location.reference,R_MM7);
|
|
emit_reg_reg(op,S_NO,left.location.register,R_MM7);
|
|
emit_reg_reg(A_MOVQ,S_NO,R_MM7,left.location.register);
|
|
location_release(exprasmlist,right.location);
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
if (right.location.loc=LOC_CMMXREGISTER) then
|
|
begin
|
|
emit_reg_reg(op,S_NO,right.location.register,left.location.register);
|
|
end
|
|
else
|
|
begin
|
|
if not(right.location.loc in [LOC_REFERENCE,LOC_CREFERENCE]) then
|
|
internalerror(200203246);
|
|
emit_ref_reg(op,S_NO,right.location.reference,left.location.register);
|
|
location_release(exprasmlist,right.location);
|
|
end;
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
{ right.location=LOC_MMXREGISTER }
|
|
if (nodetype=subn) and (nf_swaped in flags) then
|
|
begin
|
|
emit_reg_reg(op,S_NO,left.location.register,right.location.register);
|
|
location_swap(left.location,right.location);
|
|
toggleflag(nf_swaped);
|
|
end
|
|
else
|
|
begin
|
|
emit_reg_reg(op,S_NO,right.location.register,left.location.register);
|
|
end;
|
|
end;
|
|
|
|
location_freetemp(exprasmlist,right.location);
|
|
location_release(exprasmlist,right.location);
|
|
if cmpop then
|
|
begin
|
|
location_freetemp(exprasmlist,left.location);
|
|
location_release(exprasmlist,left.location);
|
|
end;
|
|
set_result_location(cmpop,true);
|
|
end;
|
|
{$endif SUPPORT_MMX}
|
|
|
|
|
|
{*****************************************************************************
|
|
pass_2
|
|
*****************************************************************************}
|
|
|
|
procedure tppcaddnode.pass_2;
|
|
{ is also being used for xor, and "mul", "sub, or and comparative }
|
|
{ operators }
|
|
var
|
|
cgop : topcg;
|
|
op : tasmop;
|
|
tmpreg : tregister;
|
|
hl : tasmlabel;
|
|
cmpop : boolean;
|
|
|
|
{ true, if unsigned types are compared }
|
|
unsigned : boolean;
|
|
|
|
begin
|
|
{ to make it more readable, string and set (not smallset!) have their
|
|
own procedures }
|
|
case left.resulttype.def.deftype of
|
|
orddef :
|
|
begin
|
|
{ handling boolean expressions }
|
|
if is_boolean(left.resulttype.def) and
|
|
is_boolean(right.resulttype.def) then
|
|
begin
|
|
second_addboolean;
|
|
exit;
|
|
end
|
|
{ 64bit operations }
|
|
else if is_64bit(left.resulttype.def) then
|
|
begin
|
|
second_add64bit;
|
|
exit;
|
|
end;
|
|
end;
|
|
stringdef :
|
|
begin
|
|
internalerror(2002072402);
|
|
exit;
|
|
end;
|
|
setdef :
|
|
begin
|
|
{ normalsets are already handled in pass1 }
|
|
if (tsetdef(left.resulttype.def).settype<>smallset) then
|
|
internalerror(200109041);
|
|
second_addsmallset;
|
|
exit;
|
|
end;
|
|
arraydef :
|
|
begin
|
|
{$ifdef SUPPORT_MMX}
|
|
if is_mmx_able_array(left.resulttype.def) then
|
|
begin
|
|
second_addmmx;
|
|
exit;
|
|
end;
|
|
{$endif SUPPORT_MMX}
|
|
end;
|
|
floatdef :
|
|
begin
|
|
second_addfloat;
|
|
exit;
|
|
end;
|
|
end;
|
|
|
|
{ defaults }
|
|
cmpop:=nodetype in [ltn,lten,gtn,gten,equaln,unequaln];
|
|
unsigned:=not(is_signed(left.resulttype.def)) or
|
|
not(is_signed(right.resulttype.def));
|
|
|
|
pass_left_and_right;
|
|
|
|
{ Convert flags to register first }
|
|
{ can any of these things be in the flags actually?? (JM) }
|
|
|
|
if (left.location.loc = LOC_FLAGS) or
|
|
(right.location.loc = LOC_FLAGS) then
|
|
internalerror(2002072602);
|
|
|
|
{ set result location }
|
|
if not cmpop then
|
|
location_reset(location,LOC_REGISTER,def_cgsize(resulttype.def))
|
|
else
|
|
location_reset(location,LOC_FLAGS,OS_NO);
|
|
|
|
load_left_right(cmpop, (cs_check_overflow in aktlocalswitches) and
|
|
(nodetype in [addn,subn,muln]));
|
|
|
|
if (location.register = NR_NO) and
|
|
not(cmpop) then
|
|
location.register := cg.getintregister(exprasmlist,OS_INT);
|
|
|
|
if not(cs_check_overflow in aktlocalswitches) or
|
|
(cmpop) or
|
|
(nodetype in [orn,andn,xorn]) then
|
|
begin
|
|
case nodetype of
|
|
addn, muln, xorn, orn, andn:
|
|
begin
|
|
case nodetype of
|
|
addn:
|
|
cgop := OP_ADD;
|
|
muln:
|
|
if unsigned then
|
|
cgop := OP_MUL
|
|
else
|
|
cgop := OP_IMUL;
|
|
xorn:
|
|
cgop := OP_XOR;
|
|
orn:
|
|
cgop := OP_OR;
|
|
andn:
|
|
cgop := OP_AND;
|
|
end;
|
|
if (left.location.loc = LOC_CONSTANT) then
|
|
swapleftright;
|
|
if (right.location.loc <> LOC_CONSTANT) then
|
|
cg.a_op_reg_reg_reg(exprasmlist,cgop,OS_INT,
|
|
left.location.register,right.location.register,
|
|
location.register)
|
|
else
|
|
cg.a_op_const_reg_reg(exprasmlist,cgop,OS_INT,
|
|
right.location.value,left.location.register,
|
|
location.register);
|
|
end;
|
|
subn:
|
|
begin
|
|
if (nf_swaped in flags) then
|
|
swapleftright;
|
|
if left.location.loc <> LOC_CONSTANT then
|
|
if right.location.loc <> LOC_CONSTANT then
|
|
cg.a_op_reg_reg_reg(exprasmlist,OP_SUB,OS_INT,
|
|
right.location.register,left.location.register,
|
|
location.register)
|
|
else
|
|
cg.a_op_const_reg_reg(exprasmlist,OP_SUB,OS_INT,
|
|
right.location.value,left.location.register,
|
|
location.register)
|
|
else
|
|
if (longint(left.location.value) >= low(smallint)) and
|
|
(longint(left.location.value) <= high(smallint)) then
|
|
begin
|
|
exprasmlist.concat(taicpu.op_reg_reg_const(A_SUBFIC,
|
|
location.register,right.location.register,
|
|
longint(left.location.value)));
|
|
end
|
|
else
|
|
begin
|
|
tmpreg := cg.getintregister(exprasmlist,OS_INT);
|
|
cg.a_load_const_reg(exprasmlist,OS_INT,
|
|
left.location.value,tmpreg);
|
|
cg.a_op_reg_reg_reg(exprasmlist,OP_SUB,OS_INT,
|
|
right.location.register,tmpreg,location.register);
|
|
end;
|
|
end;
|
|
ltn,lten,gtn,gten,equaln,unequaln :
|
|
begin
|
|
emit_compare(unsigned);
|
|
end;
|
|
end;
|
|
end
|
|
else
|
|
// overflow checking is on and we have an addn, subn or muln
|
|
begin
|
|
if is_signed(resulttype.def) then
|
|
begin
|
|
case nodetype of
|
|
addn:
|
|
op := A_ADDO;
|
|
subn:
|
|
begin
|
|
op := A_SUBO;
|
|
if (nf_swaped in flags) then
|
|
swapleftright;
|
|
end;
|
|
muln:
|
|
op := A_MULLWO;
|
|
else
|
|
internalerror(2002072601);
|
|
end;
|
|
exprasmlist.concat(taicpu.op_reg_reg_reg(op,location.register,
|
|
left.location.register,right.location.register));
|
|
cg.g_overflowcheck(exprasmlist,location,resulttype.def);
|
|
end
|
|
else
|
|
begin
|
|
case nodetype of
|
|
addn:
|
|
begin
|
|
exprasmlist.concat(taicpu.op_reg_reg_reg(A_ADD,location.register,
|
|
left.location.register,right.location.register));
|
|
exprasmlist.concat(taicpu.op_reg_reg(A_CMPLW,location.register,left.location.register));
|
|
cg.g_overflowcheck(exprasmlist,location,resulttype.def);
|
|
end;
|
|
subn:
|
|
begin
|
|
exprasmlist.concat(taicpu.op_reg_reg_reg(A_SUB,location.register,
|
|
left.location.register,right.location.register));
|
|
exprasmlist.concat(taicpu.op_reg_reg(A_CMPLW,left.location.register,location.register));
|
|
cg.g_overflowcheck(exprasmlist,location,resulttype.def);
|
|
end;
|
|
muln:
|
|
begin
|
|
{ calculate the upper 32 bits of the product, = 0 if no overflow }
|
|
cg.a_reg_alloc(exprasmlist,NR_R0);
|
|
exprasmlist.concat(taicpu.op_reg_reg_reg(A_MULHWU_,NR_R0,
|
|
left.location.register,right.location.register));
|
|
cg.a_reg_dealloc(exprasmlist,NR_R0);
|
|
{ calculate the real result }
|
|
exprasmlist.concat(taicpu.op_reg_reg_reg(A_MULLW,location.register,
|
|
left.location.register,right.location.register));
|
|
{ g_overflowcheck generates a OC_AE instead of OC_EQ :/ }
|
|
objectlibrary.getlabel(hl);
|
|
tcgppc(cg).a_jmp_cond(exprasmlist,OC_EQ,hl);
|
|
cg.a_call_name(exprasmlist,'FPC_OVERFLOW');
|
|
cg.a_label(exprasmlist,hl);
|
|
end;
|
|
end;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
begin
|
|
caddnode:=tppcaddnode;
|
|
end.
|
|
{
|
|
$Log$
|
|
Revision 1.57 2005-02-14 17:13:10 peter
|
|
* truncate log
|
|
|
|
Revision 1.56 2005/02/13 18:55:19 florian
|
|
+ overflow checking for the arm
|
|
|
|
}
|