mirror of
https://gitlab.com/freepascal.org/fpc/source.git
synced 2025-05-04 14:03:40 +02:00
3214bab118
* fix some range-check errors with loadconst + add ncgadd unit to m68k * some bugfix of a_param_reg with LOC_CREFERENCE
1067 lines
37 KiB
ObjectPascal
1067 lines
37 KiB
ObjectPascal
{
|
|
$Id$
|
|
Copyright (c) 2000-2002 by the FPC development team
|
|
|
|
Code generation for add nodes (generic version)
|
|
|
|
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 ncgadd;
|
|
|
|
{$i fpcdefs.inc}
|
|
|
|
interface
|
|
|
|
uses
|
|
node,nadd,cpubase,cginfo;
|
|
|
|
type
|
|
tcgaddnode = class(taddnode)
|
|
{ function pass_1: tnode; override;}
|
|
procedure pass_2;override;
|
|
private
|
|
procedure pass_left_and_right;
|
|
{ load left and right nodes into registers }
|
|
procedure load_left_right(cmpop, load_constants: boolean);
|
|
{ free used registers, except result location }
|
|
procedure clear_left_right(cmpop: boolean);
|
|
|
|
procedure second_opfloat;
|
|
procedure second_opboolean;
|
|
procedure second_opsmallset;
|
|
procedure second_op64bit;
|
|
|
|
{ procedure second_addfloat;virtual;}
|
|
procedure second_addboolean;virtual;
|
|
procedure second_addsmallset;virtual;
|
|
procedure second_add64bit;virtual;
|
|
procedure second_addordinal;virtual;
|
|
{ procedure second_cmpfloat;virtual;}
|
|
procedure second_cmpboolean;virtual;
|
|
procedure second_cmpsmallset;virtual;
|
|
procedure second_cmp64bit;virtual;
|
|
procedure second_cmpordinal;virtual;
|
|
|
|
|
|
end;
|
|
|
|
implementation
|
|
|
|
uses
|
|
globtype,systems,
|
|
cutils,verbose,globals,
|
|
symconst,symdef,paramgr,
|
|
aasmbase,aasmtai,aasmcpu,defutil,htypechk,
|
|
cgbase,cpuinfo,pass_1,pass_2,regvars,
|
|
cpupara,
|
|
ncon,nset,ncgutil,tgobj,rgobj,rgcpu,cgobj,cg64f32;
|
|
|
|
|
|
|
|
{*****************************************************************************
|
|
Helpers
|
|
*****************************************************************************}
|
|
(*
|
|
function tcgaddnode.getresflags(unsigned : boolean) : tresflags;
|
|
begin
|
|
case nodetype of
|
|
equaln : getresflags:=F_E;
|
|
unequaln : getresflags:=F_NE;
|
|
else
|
|
if not(unsigned) then
|
|
begin
|
|
if nf_swaped in flags then
|
|
case nodetype of
|
|
ltn : getresflags:=F_G;
|
|
lten : getresflags:=F_GE;
|
|
gtn : getresflags:=F_L;
|
|
gten : getresflags:=F_LE;
|
|
end
|
|
else
|
|
case nodetype of
|
|
ltn : getresflags:=F_L;
|
|
lten : getresflags:=F_LE;
|
|
gtn : getresflags:=F_G;
|
|
gten : getresflags:=F_GE;
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
if nf_swaped in flags then
|
|
case nodetype of
|
|
ltn : getresflags:=F_A;
|
|
lten : getresflags:=F_AE;
|
|
gtn : getresflags:=F_B;
|
|
gten : getresflags:=F_BE;
|
|
end
|
|
else
|
|
case nodetype of
|
|
ltn : getresflags:=F_B;
|
|
lten : getresflags:=F_BE;
|
|
gtn : getresflags:=F_A;
|
|
gten : getresflags:=F_AE;
|
|
end;
|
|
end;
|
|
end;
|
|
end;
|
|
*)
|
|
|
|
procedure tcgaddnode.pass_left_and_right;
|
|
var
|
|
pushedregs : tmaybesave;
|
|
tmpreg : tregister;
|
|
pushedfpu : boolean;
|
|
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);
|
|
|
|
{ are too few registers free? }
|
|
maybe_save(exprasmlist,right.registers32,left.location,pushedregs);
|
|
if location.loc=LOC_FPUREGISTER then
|
|
pushedfpu:=maybe_pushfpu(exprasmlist,right.registersfpu,left.location)
|
|
else
|
|
pushedfpu:=false;
|
|
secondpass(right);
|
|
maybe_restore(exprasmlist,left.location,pushedregs);
|
|
if pushedfpu then
|
|
begin
|
|
tmpreg := rg.getregisterfpu(exprasmlist);
|
|
cg.a_loadfpu_loc_reg(exprasmlist,left.location,tmpreg);
|
|
location_reset(left.location,LOC_FPUREGISTER,left.location.size);
|
|
left.location.register := tmpreg;
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure tcgaddnode.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_64bitint(n.resulttype.def) then
|
|
location.registerhigh := n.location.registerhigh;
|
|
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_64bitint(n.resulttype.def) then
|
|
location.registerhigh := n.location.registerhigh;
|
|
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_64bitint(n.resulttype.def) then
|
|
location.registerhigh := n.location.registerhigh;
|
|
end;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
begin
|
|
load_node(left);
|
|
load_node(right);
|
|
end;
|
|
|
|
|
|
procedure tcgaddnode.clear_left_right(cmpop: boolean);
|
|
begin
|
|
if (right.location.loc in [LOC_REGISTER,LOC_FPUREGISTER]) and
|
|
(cmpop or
|
|
(location.register <> right.location.register)) then
|
|
begin
|
|
rg.ungetregister(exprasmlist,right.location.register);
|
|
if is_64bitint(right.resulttype.def) then
|
|
rg.ungetregister(exprasmlist,right.location.registerhigh);
|
|
end;
|
|
if (left.location.loc in [LOC_REGISTER,LOC_FPUREGISTER]) and
|
|
(cmpop or
|
|
(location.register <> left.location.register)) then
|
|
begin
|
|
rg.ungetregister(exprasmlist,left.location.register);
|
|
if is_64bitint(left.resulttype.def) then
|
|
rg.ungetregister(exprasmlist,left.location.registerhigh);
|
|
end;
|
|
end;
|
|
|
|
|
|
|
|
{*****************************************************************************
|
|
Smallsets
|
|
*****************************************************************************}
|
|
procedure tcgaddnode.second_opsmallset;
|
|
var
|
|
cmpop : boolean;
|
|
begin
|
|
cmpop := false;
|
|
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);
|
|
|
|
if nodetype in [equaln,unequaln,gtn,gten,lten,ltn] then
|
|
cmpop := true;
|
|
|
|
{ load non-constant values (left and right) into registers }
|
|
load_left_right(cmpop,false);
|
|
|
|
if cmpop then
|
|
second_cmpsmallset
|
|
else
|
|
second_addsmallset;
|
|
|
|
clear_left_right(cmpop);
|
|
end;
|
|
|
|
|
|
procedure tcgaddnode.second_cmpsmallset;
|
|
begin
|
|
location_reset(location,LOC_FLAGS,OS_NO);
|
|
|
|
case nodetype of
|
|
equaln,
|
|
unequaln :
|
|
begin
|
|
{emit_compare(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.get_scratch_reg_int(exprasmlist);
|
|
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,
|
|
aword(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;
|
|
cg.free_scratch_reg(exprasmlist,tmpreg);
|
|
location.resflags.cr := R_CR0;
|
|
location.resflags.flag := F_EQ;
|
|
opdone := true;*)
|
|
end;
|
|
else
|
|
internalerror(2002072701);
|
|
end;
|
|
|
|
|
|
end;
|
|
|
|
|
|
procedure tcgaddnode.second_addsmallset;
|
|
var
|
|
cgop : TOpCg;
|
|
tmpreg : tregister;
|
|
opdone,
|
|
cmpop : boolean;
|
|
begin
|
|
|
|
|
|
opdone := false;
|
|
|
|
location_reset(location,LOC_REGISTER,def_cgsize(resulttype.def));
|
|
|
|
if (location.register = R_NO) then
|
|
location.register := rg.getregisterint(exprasmlist);
|
|
|
|
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,
|
|
aword(1 shl aword(right.location.value)),
|
|
left.location.register,location.register)
|
|
else
|
|
begin
|
|
tmpreg := cg.get_scratch_reg_int(exprasmlist);
|
|
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,
|
|
aword(left.location.value),tmpreg,location.register);
|
|
cg.free_scratch_reg(exprasmlist,tmpreg);
|
|
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.get_scratch_reg_int(exprasmlist);
|
|
cg.a_load_const_reg(exprasmlist,OS_INT,
|
|
aword(left.location.value),tmpreg);
|
|
cg.a_op_reg_reg(exprasmlist,OP_NOT,OS_INT,right.location.register,right.location.register);
|
|
cg.a_op_reg_reg(exprasmlist,OP_AND,OS_INT,right.location.register,tmpreg);
|
|
cg.a_load_reg_reg(exprasmlist,OS_INT,OS_INT,tmpreg,location.register);
|
|
cg.free_scratch_reg(exprasmlist,tmpreg);
|
|
end
|
|
else
|
|
begin
|
|
cg.a_op_reg_reg(exprasmlist,OP_NOT,OS_INT,right.location.register,right.location.register);
|
|
cg.a_op_reg_reg(exprasmlist,OP_AND,OS_INT,right.location.register,left.location.register);
|
|
cg.a_load_reg_reg(exprasmlist,OS_INT,OS_INT,left.location.register,location.register);
|
|
end;
|
|
end;
|
|
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,
|
|
aword(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;
|
|
|
|
{*****************************************************************************
|
|
Boolean
|
|
*****************************************************************************}
|
|
|
|
procedure tcgaddnode.second_opboolean;
|
|
var
|
|
cmpop : boolean;
|
|
begin
|
|
cmpop := false;
|
|
{ calculate the operator which is more difficult }
|
|
firstcomplex(self);
|
|
|
|
if cmpop then
|
|
second_cmpboolean
|
|
else
|
|
second_addboolean;
|
|
|
|
|
|
end;
|
|
|
|
procedure tcgaddnode.second_cmpboolean;
|
|
begin
|
|
end;
|
|
|
|
procedure tcgaddnode.second_addboolean;
|
|
var
|
|
cgop : TOpCg;
|
|
cgsize : TCgSize;
|
|
cmpop,
|
|
isjump : boolean;
|
|
otl,ofl : tasmlabel;
|
|
pushedregs : tmaybesave;
|
|
begin
|
|
|
|
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.location.loc=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;
|
|
|
|
maybe_save(exprasmlist,right.registers32,left.location,pushedregs);
|
|
isjump:=(right.location.loc=LOC_JUMP);
|
|
if isjump then
|
|
begin
|
|
otl:=truelabel;
|
|
objectlibrary.getlabel(truelabel);
|
|
ofl:=falselabel;
|
|
objectlibrary.getlabel(falselabel);
|
|
end;
|
|
secondpass(right);
|
|
maybe_restore(exprasmlist,left.location,pushedregs);
|
|
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;
|
|
|
|
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,
|
|
aword(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
|
|
CGMessage(type_e_mismatch);
|
|
end;
|
|
secondpass(right);
|
|
maketojumpbool(exprasmlist,right,lr_load_regvars);
|
|
end;
|
|
end;
|
|
end;*)
|
|
{ free used register (except the result register) }
|
|
clear_left_right(cmpop);
|
|
end;
|
|
|
|
|
|
{*****************************************************************************
|
|
64-bit
|
|
*****************************************************************************}
|
|
|
|
procedure tcgaddnode.second_op64bit;
|
|
var
|
|
cmpop : boolean;
|
|
begin
|
|
cmpop := false;
|
|
firstcomplex(self);
|
|
|
|
pass_left_and_right;
|
|
|
|
if nodetype in [equaln,unequaln,gtn,gten,ltn,lten] then
|
|
cmpop := true;
|
|
|
|
if cmpop then
|
|
second_cmp64bit
|
|
else
|
|
second_add64bit;
|
|
|
|
{ free used register (except the result register) }
|
|
clear_left_right(cmpop);
|
|
end;
|
|
|
|
procedure tcgaddnode.second_cmp64bit;
|
|
begin
|
|
(* load_left_right(true,false);
|
|
|
|
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.registerlow;
|
|
tempreg64.reghi := left.location.registerhigh;
|
|
end
|
|
else
|
|
begin
|
|
if (aword(right.location.valueqword) <> 0) then
|
|
tempreg64.reglo := cg.get_scratch_reg_int(exprasmlist)
|
|
else
|
|
tempreg64.reglo := left.location.registerlow;
|
|
if ((right.location.valueqword shr 32) <> 0) then
|
|
tempreg64.reghi := cg.get_scratch_reg_int(exprasmlist)
|
|
else
|
|
tempreg64.reghi := left.location.registerhigh;
|
|
end;
|
|
|
|
if (aword(right.location.valueqword) <> 0) then
|
|
{ negative values can be handled using SUB, }
|
|
{ positive values < 65535 using XOR. }
|
|
if (longint(right.location.valueqword) >= -32767) and
|
|
(longint(right.location.valueqword) < 0) then
|
|
cg.a_op_const_reg_reg(exprasmlist,OP_SUB,OS_INT,
|
|
aword(right.location.valueqword),
|
|
left.location.registerlow,tempreg64.reglo)
|
|
else
|
|
cg.a_op_const_reg_reg(exprasmlist,OP_XOR,OS_INT,
|
|
aword(right.location.valueqword),
|
|
left.location.registerlow,tempreg64.reglo);
|
|
|
|
if ((right.location.valueqword shr 32) <> 0) then
|
|
if (longint(right.location.valueqword shr 32) >= -32767) and
|
|
(longint(right.location.valueqword shr 32) < 0) then
|
|
cg.a_op_const_reg_reg(exprasmlist,OP_SUB,OS_INT,
|
|
aword(right.location.valueqword shr 32),
|
|
left.location.registerhigh,tempreg64.reghi)
|
|
else
|
|
cg.a_op_const_reg_reg(exprasmlist,OP_XOR,OS_INT,
|
|
aword(right.location.valueqword shr 32),
|
|
left.location.registerhigh,tempreg64.reghi);
|
|
end
|
|
else
|
|
begin
|
|
tempreg64.reglo := cg.get_scratch_reg_int(exprasmlist);
|
|
tempreg64.reghi := cg.get_scratch_reg_int(exprasmlist);
|
|
cg64.a_op64_reg_reg_reg(exprasmlist,OP_XOR,
|
|
left.location.register64,right.location.register64,
|
|
tempreg64);
|
|
end;
|
|
|
|
cg.a_reg_alloc(exprasmlist,R_0);
|
|
exprasmlist.concat(taicpu.op_reg_reg_reg(A_OR_,R_0,
|
|
tempreg64.reglo,tempreg64.reghi));
|
|
cg.a_reg_dealloc(exprasmlist,R_0);
|
|
if (tempreg64.reglo <> left.location.registerlow) then
|
|
cg.free_scratch_reg(exprasmlist,tempreg64.reglo);
|
|
if (tempreg64.reghi <> left.location.registerhigh) then
|
|
cg.free_scratch_reg(exprasmlist,tempreg64.reghi);
|
|
|
|
location_reset(location,LOC_FLAGS,OS_NO);
|
|
location.resflags := getresflags;
|
|
end;
|
|
else
|
|
internalerror(2002072803);
|
|
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;
|
|
|
|
|
|
procedure tcgaddnode.second_add64bit;
|
|
var
|
|
op : TOpCG;
|
|
unsigned : boolean;
|
|
checkoverflow : boolean;
|
|
|
|
begin
|
|
|
|
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));
|
|
{ assume no overflow checking is required }
|
|
checkoverflow := false;
|
|
|
|
case nodetype of
|
|
addn :
|
|
begin
|
|
op:=OP_ADD;
|
|
checkoverflow := true;
|
|
end;
|
|
subn :
|
|
begin
|
|
op:=OP_SUB;
|
|
checkoverflow := 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;
|
|
|
|
location_reset(location,LOC_REGISTER,def_cgsize(resulttype.def));
|
|
|
|
load_left_right(false,(cs_check_overflow in aktlocalswitches) and
|
|
(nodetype in [addn,subn]));
|
|
|
|
case nodetype of
|
|
xorn,orn,andn,addn:
|
|
begin
|
|
if (location.registerlow = R_NO) then
|
|
begin
|
|
location.registerlow := rg.getregisterint(exprasmlist);
|
|
location.registerhigh := rg.getregisterint(exprasmlist);
|
|
end;
|
|
|
|
if (left.location.loc = LOC_CONSTANT) then
|
|
swapleftright;
|
|
if (right.location.loc = LOC_CONSTANT) then
|
|
cg64.a_op64_const_reg_reg(exprasmlist,op,right.location.valueqword,
|
|
left.location.register64,location.register64)
|
|
else
|
|
cg64.a_op64_reg_reg_reg(exprasmlist,op,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.registerlow = R_NO) then
|
|
begin
|
|
location.registerlow := rg.getregisterint(exprasmlist);
|
|
location.registerhigh := rg.getregisterint(exprasmlist);
|
|
end;
|
|
if right.location.loc <> LOC_CONSTANT then
|
|
// reg64 - reg64
|
|
cg64.a_op64_reg_reg_reg(exprasmlist,OP_SUB,
|
|
right.location.register64,left.location.register64,
|
|
location.register64)
|
|
else
|
|
// reg64 - const64
|
|
cg64.a_op64_const_reg_reg(exprasmlist,OP_SUB,
|
|
right.location.valueqword,left.location.register64,
|
|
location.register64)
|
|
end
|
|
else
|
|
begin
|
|
// const64 - reg64
|
|
location_force_reg(exprasmlist,left.location,
|
|
def_cgsize(left.resulttype.def),true);
|
|
if (left.location.loc = LOC_REGISTER) then
|
|
location.register64 := left.location.register64
|
|
else if (location.registerlow = R_NO) then
|
|
begin
|
|
location.registerlow := rg.getregisterint(exprasmlist);
|
|
location.registerhigh := rg.getregisterint(exprasmlist);
|
|
end;
|
|
cg64.a_op64_reg_reg_reg(exprasmlist,OP_SUB,
|
|
right.location.register64,left.location.register64,
|
|
location.register64);
|
|
end;
|
|
end;
|
|
else
|
|
internalerror(2002072803);
|
|
end;
|
|
|
|
{ emit overflow check if enabled }
|
|
if checkoverflow then
|
|
cg.g_overflowcheck(exprasmlist,self);
|
|
|
|
end;
|
|
|
|
{*****************************************************************************
|
|
Floats
|
|
*****************************************************************************}
|
|
|
|
procedure tcgaddnode.second_opfloat;
|
|
begin
|
|
end;
|
|
|
|
{*****************************************************************************
|
|
Ordinals
|
|
*****************************************************************************}
|
|
procedure tcgaddnode.second_cmpordinal;
|
|
var
|
|
unsigned : boolean;
|
|
begin
|
|
{ set result location }
|
|
location_reset(location,LOC_FLAGS,OS_NO);
|
|
|
|
{ load values into registers (except constants) }
|
|
load_left_right(true, false);
|
|
|
|
{ determine if the comparison will be unsigned }
|
|
unsigned:=not(is_signed(left.resulttype.def)) or
|
|
not(is_signed(right.resulttype.def));
|
|
|
|
end;
|
|
|
|
|
|
procedure tcgaddnode.second_addordinal;
|
|
var
|
|
unsigned : boolean;
|
|
checkoverflow : boolean;
|
|
cgop : topcg;
|
|
tmpreg : tregister;
|
|
begin
|
|
{ set result location }
|
|
location_reset(location,LOC_REGISTER,def_cgsize(resulttype.def));
|
|
|
|
{ determine if the comparison will be unsigned }
|
|
unsigned:=not(is_signed(left.resulttype.def)) or
|
|
not(is_signed(right.resulttype.def));
|
|
|
|
{ load values into registers }
|
|
load_left_right(false, (cs_check_overflow in aktlocalswitches) and
|
|
(nodetype in [addn,subn,muln]));
|
|
|
|
if (location.register = R_NO) then
|
|
location.register := rg.getregisterint(exprasmlist);
|
|
|
|
{ assume no overflow checking is require }
|
|
checkoverflow := false;
|
|
|
|
case nodetype of
|
|
addn:
|
|
begin
|
|
cgop := OP_ADD;
|
|
checkoverflow := true;
|
|
end;
|
|
xorn :
|
|
begin
|
|
cgop := OP_XOR;
|
|
end;
|
|
orn :
|
|
begin
|
|
cgop := OP_OR;
|
|
end;
|
|
andn:
|
|
begin
|
|
cgop := OP_AND;
|
|
end;
|
|
muln:
|
|
begin
|
|
checkoverflow := true;
|
|
if unsigned then
|
|
cgop := OP_MUL
|
|
else
|
|
cgop := OP_IMUL;
|
|
end;
|
|
subn :
|
|
begin
|
|
checkoverflow := true;
|
|
cgop := OP_SUB;
|
|
end;
|
|
end;
|
|
|
|
if nodetype <> subn then
|
|
begin
|
|
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,
|
|
aword(right.location.value),left.location.register,
|
|
location.register);
|
|
end
|
|
else { subtract is a special case since its not commutative }
|
|
begin
|
|
if (nf_swaped in flags) then
|
|
swapleftright;
|
|
if left.location.loc <> LOC_CONSTANT then
|
|
begin
|
|
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,
|
|
aword(right.location.value),left.location.register,
|
|
location.register);
|
|
end
|
|
else
|
|
begin
|
|
tmpreg := cg.get_scratch_reg_int(exprasmlist);
|
|
cg.a_load_const_reg(exprasmlist,OS_INT,
|
|
aword(left.location.value),tmpreg);
|
|
cg.a_op_reg_reg_reg(exprasmlist,OP_SUB,OS_INT,
|
|
right.location.register,tmpreg,location.register);
|
|
cg.free_scratch_reg(exprasmlist,tmpreg);
|
|
end;
|
|
end;
|
|
|
|
{ emit overflow check if required }
|
|
if checkoverflow then
|
|
cg.g_overflowcheck(exprasmlist,self);
|
|
end;
|
|
|
|
{*****************************************************************************
|
|
pass_2
|
|
*****************************************************************************}
|
|
|
|
procedure tcgaddnode.pass_2;
|
|
{ is also being used for xor, and "mul", "sub, or and comparative }
|
|
{ operators }
|
|
var
|
|
cmpop : boolean;
|
|
cgop : topcg;
|
|
op : tasmop;
|
|
tmpreg : tregister;
|
|
|
|
{ true, if unsigned types are compared }
|
|
unsigned : boolean;
|
|
|
|
regstopush: tregisterset;
|
|
|
|
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_opboolean;
|
|
exit;
|
|
end
|
|
{ 64bit operations }
|
|
else if is_64bitint(left.resulttype.def) then
|
|
begin
|
|
second_op64bit;
|
|
exit;
|
|
end;
|
|
end;
|
|
stringdef :
|
|
begin
|
|
{ this should already be handled in pass1 }
|
|
internalerror(2002072402);
|
|
exit;
|
|
end;
|
|
setdef :
|
|
begin
|
|
{ normalsets are already handled in pass1 }
|
|
if (tsetdef(left.resulttype.def).settype<>smallset) then
|
|
internalerror(200109041);
|
|
second_opsmallset;
|
|
exit;
|
|
end;
|
|
arraydef :
|
|
begin
|
|
{$ifdef SUPPORT_MMX}
|
|
if is_mmx_able_array(left.resulttype.def) then
|
|
begin
|
|
second_opmmx;
|
|
exit;
|
|
end;
|
|
{$endif SUPPORT_MMX}
|
|
end;
|
|
floatdef :
|
|
begin
|
|
second_opfloat;
|
|
exit;
|
|
end;
|
|
end;
|
|
|
|
{*********************** ordinals / integrals *******************}
|
|
|
|
cmpop:=nodetype in [ltn,lten,gtn,gten,equaln,unequaln];
|
|
|
|
{ normally nothing should be in flags }
|
|
if (left.location.loc = LOC_FLAGS) or
|
|
(right.location.loc = LOC_FLAGS) then
|
|
internalerror(2002072602);
|
|
|
|
|
|
pass_left_and_right;
|
|
|
|
if cmpop then
|
|
second_cmpordinal
|
|
else
|
|
second_addordinal;
|
|
|
|
{ free used register (except the result register) }
|
|
clear_left_right(cmpop);
|
|
end;
|
|
|
|
end.
|
|
{
|
|
$Log$
|
|
Revision 1.3 2002-12-14 15:02:03 carl
|
|
* maxoperands -> max_operands (for portability in rautils.pas)
|
|
* fix some range-check errors with loadconst
|
|
+ add ncgadd unit to m68k
|
|
* some bugfix of a_param_reg with LOC_CREFERENCE
|
|
|
|
Revision 1.2 2002/12/08 15:02:17 carl
|
|
+ more fixes
|
|
|
|
Revision 1.1 2002/12/07 19:51:35 carl
|
|
+ first version (uncompilable!)
|
|
|
|
} |