mirror of
https://gitlab.com/freepascal.org/fpc/source.git
synced 2025-06-25 01:38:20 +02:00
2017 lines
91 KiB
ObjectPascal
2017 lines
91 KiB
ObjectPascal
{
|
|
$Id$
|
|
Copyright (c) 2000 by Florian Klaempfl
|
|
|
|
Code generation for add nodes on the i386
|
|
|
|
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 n386add;
|
|
|
|
{$i defines.inc}
|
|
|
|
interface
|
|
|
|
uses
|
|
node,nadd,cpubase;
|
|
|
|
type
|
|
ti386addnode = class(taddnode)
|
|
procedure pass_2;override;
|
|
function getresflags(unsigned : boolean) : tresflags;
|
|
procedure SetResultLocation(cmpop,unsigned : boolean);
|
|
protected
|
|
function first_addstring : tnode; override;
|
|
private
|
|
procedure second_addstring;
|
|
end;
|
|
|
|
implementation
|
|
|
|
uses
|
|
globtype,systems,
|
|
cutils,verbose,globals,widestr,
|
|
symconst,symdef,aasm,types,htypechk,
|
|
cgbase,temp_gen,pass_2,regvars,
|
|
cpuasm,
|
|
ncon,nset,
|
|
tainst,cga,ncgutil,n386util,tgcpu;
|
|
|
|
function ti386addnode.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 ti386addnode.SetResultLocation(cmpop,unsigned : boolean);
|
|
|
|
begin
|
|
{ remove temporary location if not a set or string }
|
|
{ that's a bad hack (FK) who did this ? }
|
|
if (left.resulttype.def.deftype<>stringdef) and
|
|
((left.resulttype.def.deftype<>setdef) or (tsetdef(left.resulttype.def).settype=smallset)) and
|
|
(left.location.loc in [LOC_MEM,LOC_REFERENCE]) then
|
|
ungetiftemp(left.location.reference);
|
|
if (right.resulttype.def.deftype<>stringdef) and
|
|
((right.resulttype.def.deftype<>setdef) or (tsetdef(right.resulttype.def).settype=smallset)) and
|
|
(right.location.loc in [LOC_MEM,LOC_REFERENCE]) then
|
|
ungetiftemp(right.location.reference);
|
|
{ in case of comparison operation the put result in the flags }
|
|
if cmpop then
|
|
begin
|
|
clear_location(location);
|
|
location.loc:=LOC_FLAGS;
|
|
location.resflags:=getresflags(unsigned);
|
|
end;
|
|
end;
|
|
|
|
|
|
{*****************************************************************************
|
|
Addstring
|
|
*****************************************************************************}
|
|
|
|
{ note: if you implemented an fpc_shortstr_concat similar to the }
|
|
{ one in i386.inc, you have to override first_addstring like in }
|
|
{ ti386addnode.first_string and implement the shortstring concat }
|
|
{ manually! The generic routine is different from the i386 one (JM) }
|
|
function ti386addnode.first_addstring : tnode;
|
|
|
|
begin
|
|
{ special cases for shortstrings, handled in pass_2 (JM) }
|
|
{ can't handle fpc_shortstr_compare with compilerproc either because it }
|
|
{ returns its results in the flags instead of in eax }
|
|
if (((nodetype = addn) and
|
|
is_shortstring(resulttype.def)) or
|
|
((nodetype in [ltn,lten,gtn,gten,equaln,unequaln]) and
|
|
is_shortstring(left.resulttype.def))) then
|
|
begin
|
|
if nodetype = addn then
|
|
location.loc := LOC_MEM
|
|
else
|
|
location.loc := LOC_FLAGS;
|
|
calcregisters(self,0,0,0);
|
|
result := nil;
|
|
exit;
|
|
end;
|
|
{ otherwise, use the generic code }
|
|
result := inherited first_addstring;
|
|
end;
|
|
|
|
|
|
procedure ti386addnode.second_addstring;
|
|
|
|
var
|
|
pushedregs : tpushed;
|
|
href : treference;
|
|
cmpop : boolean;
|
|
regstopush : byte;
|
|
begin
|
|
{ string operations are not commutative }
|
|
if nf_swaped in flags then
|
|
swapleftright;
|
|
case tstringdef(left.resulttype.def).string_typ of
|
|
st_shortstring:
|
|
begin
|
|
case nodetype of
|
|
addn:
|
|
begin
|
|
cmpop:=false;
|
|
secondpass(left);
|
|
{ if str_concat is set in expr
|
|
s:=s+ ... no need to create a temp string (PM) }
|
|
{ the tempstring can also come from a typeconversion }
|
|
{ or a function result, so simply check for a }
|
|
{ temp of 256 bytes(JM) }
|
|
|
|
if not(istemp(left.location.reference) and
|
|
(getsizeoftemp(left.location.reference) = 256)) and
|
|
not(nf_use_strconcat in flags) then
|
|
begin
|
|
|
|
{ can only reference be }
|
|
{ string in register would be funny }
|
|
{ therefore produce a temporary string }
|
|
|
|
gettempofsizereference(256,href);
|
|
copyshortstring(href,left.location.reference,255,false,true);
|
|
{ release the registers }
|
|
{ done by copyshortstring now (JM) }
|
|
{ del_reference(left.location.reference); }
|
|
ungetiftemp(left.location.reference);
|
|
|
|
{ does not hurt: }
|
|
clear_location(left.location);
|
|
left.location.loc:=LOC_MEM;
|
|
left.location.reference:=href;
|
|
|
|
end;
|
|
|
|
secondpass(right);
|
|
|
|
{ on the right we do not need the register anymore too }
|
|
{ Instead of releasing them already, simply do not }
|
|
{ push them (so the release is in the right place, }
|
|
{ because emitpushreferenceaddr doesn't need extra }
|
|
{ registers) (JM) }
|
|
regstopush := $ff;
|
|
remove_non_regvars_from_loc(right.location,
|
|
regstopush);
|
|
pushusedregisters(pushedregs,regstopush);
|
|
{ push the maximum possible length of the result }
|
|
emitpushreferenceaddr(left.location.reference);
|
|
{ the optimizer can more easily put the }
|
|
{ deallocations in the right place if it happens }
|
|
{ too early than when it happens too late (if }
|
|
{ the pushref needs a "lea (..),edi; push edi") }
|
|
del_reference(right.location.reference);
|
|
emitpushreferenceaddr(right.location.reference);
|
|
saveregvars(regstopush);
|
|
emitcall('FPC_SHORTSTR_CONCAT');
|
|
ungetiftemp(right.location.reference);
|
|
maybe_loadself;
|
|
popusedregisters(pushedregs);
|
|
set_location(location,left.location);
|
|
end;
|
|
ltn,lten,gtn,gten,equaln,unequaln :
|
|
begin
|
|
cmpop := true;
|
|
pushusedregisters(pushedregs,$ff);
|
|
secondpass(left);
|
|
emitpushreferenceaddr(left.location.reference);
|
|
del_reference(left.location.reference);
|
|
secondpass(right);
|
|
emitpushreferenceaddr(right.location.reference);
|
|
del_reference(right.location.reference);
|
|
saveregvars($ff);
|
|
emitcall('FPC_SHORTSTR_COMPARE');
|
|
maybe_loadself;
|
|
popusedregisters(pushedregs);
|
|
ungetiftemp(left.location.reference);
|
|
ungetiftemp(right.location.reference);
|
|
end;
|
|
end;
|
|
SetResultLocation(cmpop,true);
|
|
end;
|
|
else
|
|
{ rest should be handled in first pass (JM) }
|
|
internalerror(200108303);
|
|
end;
|
|
end;
|
|
|
|
|
|
{*****************************************************************************
|
|
pass_2
|
|
*****************************************************************************}
|
|
|
|
procedure ti386addnode.pass_2;
|
|
{ is also being used for xor, and "mul", "sub, or and comparative }
|
|
{ operators }
|
|
|
|
label do_normal;
|
|
|
|
var
|
|
hregister,hregister2 : tregister;
|
|
noswap,popeax,popedx,
|
|
pushed,pushedfpu,
|
|
mboverflow,cmpop : boolean;
|
|
op,op2 : tasmop;
|
|
resflags : tresflags;
|
|
otl,ofl : tasmlabel;
|
|
power : longint;
|
|
opsize : topsize;
|
|
hl4: tasmlabel;
|
|
hr : preference;
|
|
|
|
{ true, if unsigned types are compared }
|
|
unsigned : boolean;
|
|
{ true, if a small set is handled with the longint code }
|
|
is_set : boolean;
|
|
{ is_in_dest if the result is put directly into }
|
|
{ the resulting refernce or varregister }
|
|
is_in_dest : boolean;
|
|
{ true, if for sets subtractions the extra not should generated }
|
|
extra_not : boolean;
|
|
|
|
{$ifdef SUPPORT_MMX}
|
|
mmxbase : tmmxtype;
|
|
{$endif SUPPORT_MMX}
|
|
regstopush: byte;
|
|
|
|
procedure firstjmp64bitcmp;
|
|
|
|
var
|
|
oldnodetype : tnodetype;
|
|
|
|
begin
|
|
load_all_regvars(exprasmlist);
|
|
{ the jump the sequence is a little bit hairy }
|
|
case nodetype of
|
|
ltn,gtn:
|
|
begin
|
|
emitjmp(flags_to_cond(getresflags(unsigned)),truelabel);
|
|
{ cheat a little bit for the negative test }
|
|
toggleflag(nf_swaped);
|
|
emitjmp(flags_to_cond(getresflags(unsigned)),falselabel);
|
|
toggleflag(nf_swaped);
|
|
end;
|
|
lten,gten:
|
|
begin
|
|
oldnodetype:=nodetype;
|
|
if nodetype=lten then
|
|
nodetype:=ltn
|
|
else
|
|
nodetype:=gtn;
|
|
emitjmp(flags_to_cond(getresflags(unsigned)),truelabel);
|
|
{ cheat for the negative test }
|
|
if nodetype=ltn then
|
|
nodetype:=gtn
|
|
else
|
|
nodetype:=ltn;
|
|
emitjmp(flags_to_cond(getresflags(unsigned)),falselabel);
|
|
nodetype:=oldnodetype;
|
|
end;
|
|
equaln:
|
|
emitjmp(C_NE,falselabel);
|
|
unequaln:
|
|
emitjmp(C_NE,truelabel);
|
|
end;
|
|
end;
|
|
|
|
procedure secondjmp64bitcmp;
|
|
|
|
begin
|
|
{ the jump the sequence is a little bit hairy }
|
|
case nodetype of
|
|
ltn,gtn,lten,gten:
|
|
begin
|
|
{ the comparisaion of the low dword have to be }
|
|
{ always unsigned! }
|
|
emitjmp(flags_to_cond(getresflags(true)),truelabel);
|
|
emitjmp(C_None,falselabel);
|
|
end;
|
|
equaln:
|
|
begin
|
|
emitjmp(C_NE,falselabel);
|
|
emitjmp(C_None,truelabel);
|
|
end;
|
|
unequaln:
|
|
begin
|
|
emitjmp(C_NE,truelabel);
|
|
emitjmp(C_None,falselabel);
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
begin
|
|
{ to make it more readable, string and set (not smallset!) have their
|
|
own procedures }
|
|
case left.resulttype.def.deftype of
|
|
stringdef : begin
|
|
second_addstring;
|
|
exit;
|
|
end;
|
|
setdef : begin
|
|
{ normalsets are handled separate }
|
|
if not(tsetdef(left.resulttype.def).settype=smallset) then
|
|
begin
|
|
{ should be handled in pass 1 (JM) }
|
|
internalerror(200109041);
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
{ defaults }
|
|
unsigned:=false;
|
|
is_in_dest:=false;
|
|
extra_not:=false;
|
|
noswap:=false;
|
|
opsize:=S_L;
|
|
|
|
{ are we a (small)set, must be set here because the side can be
|
|
swapped ! (PFV) }
|
|
is_set:=(left.resulttype.def.deftype=setdef);
|
|
|
|
{ calculate the operator which is more difficult }
|
|
firstcomplex(self);
|
|
|
|
{ handling boolean expressions extra: }
|
|
if is_boolean(left.resulttype.def) and
|
|
is_boolean(right.resulttype.def) then
|
|
begin
|
|
if (torddef(left.resulttype.def).typ=bool8bit) or
|
|
(torddef(right.resulttype.def).typ=bool8bit) then
|
|
opsize:=S_B
|
|
else
|
|
if (torddef(left.resulttype.def).typ=bool16bit) or
|
|
(torddef(right.resulttype.def).typ=bool16bit) then
|
|
opsize:=S_W
|
|
else
|
|
opsize:=S_L;
|
|
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;
|
|
if left.location.loc=LOC_JUMP then
|
|
begin
|
|
otl:=truelabel;
|
|
getlabel(truelabel);
|
|
ofl:=falselabel;
|
|
getlabel(falselabel);
|
|
end;
|
|
|
|
secondpass(left);
|
|
{ if in flags then copy first to register, because the
|
|
flags can be destroyed }
|
|
case left.location.loc of
|
|
LOC_FLAGS:
|
|
locflags2reg(left.location,opsize);
|
|
LOC_JUMP:
|
|
locjump2reg(left.location,opsize, otl, ofl);
|
|
end;
|
|
set_location(location,left.location);
|
|
pushed:=maybe_push(right.registers32,self,false);
|
|
if right.location.loc=LOC_JUMP then
|
|
begin
|
|
otl:=truelabel;
|
|
getlabel(truelabel);
|
|
ofl:=falselabel;
|
|
getlabel(falselabel);
|
|
end;
|
|
secondpass(right);
|
|
if pushed then
|
|
begin
|
|
restore(self,false);
|
|
set_location(left.location,location);
|
|
end;
|
|
case right.location.loc of
|
|
LOC_FLAGS:
|
|
locflags2reg(right.location,opsize);
|
|
LOC_JUMP:
|
|
locjump2reg(right.location,opsize,otl,ofl);
|
|
end;
|
|
goto do_normal;
|
|
end;
|
|
|
|
case nodetype of
|
|
andn,
|
|
orn : begin
|
|
clear_location(location);
|
|
location.loc:=LOC_JUMP;
|
|
cmpop:=false;
|
|
case nodetype of
|
|
andn : begin
|
|
otl:=truelabel;
|
|
getlabel(truelabel);
|
|
secondpass(left);
|
|
maketojumpbool(left,lr_load_regvars);
|
|
emitlab(truelabel);
|
|
truelabel:=otl;
|
|
end;
|
|
orn : begin
|
|
ofl:=falselabel;
|
|
getlabel(falselabel);
|
|
secondpass(left);
|
|
maketojumpbool(left,lr_load_regvars);
|
|
emitlab(falselabel);
|
|
falselabel:=ofl;
|
|
end;
|
|
else
|
|
CGMessage(type_e_mismatch);
|
|
end;
|
|
secondpass(right);
|
|
maketojumpbool(right,lr_load_regvars);
|
|
end;
|
|
else
|
|
CGMessage(type_e_mismatch);
|
|
end
|
|
end
|
|
else
|
|
begin
|
|
{ in case of constant put it to the left }
|
|
if (left.nodetype=ordconstn) then
|
|
swapleftright;
|
|
secondpass(left);
|
|
{ this will be complicated as
|
|
a lot of code below assumes that
|
|
location and left.location are the same }
|
|
|
|
{$ifdef test_dest_loc}
|
|
if dest_loc_known and (dest_loc_tree=p) and
|
|
((dest_loc.loc=LOC_REGISTER) or (dest_loc.loc=LOC_CREGISTER)) then
|
|
begin
|
|
set_location(location,dest_loc);
|
|
in_dest_loc:=true;
|
|
is_in_dest:=true;
|
|
end
|
|
else
|
|
{$endif test_dest_loc}
|
|
set_location(location,left.location);
|
|
|
|
{ are too few registers free? }
|
|
pushed:=maybe_push(right.registers32,self,is_64bitint(left.resulttype.def));
|
|
if location.loc=LOC_FPU then
|
|
pushedfpu:=maybe_pushfpu(right.registersfpu,self)
|
|
else
|
|
pushedfpu:=false;
|
|
secondpass(right);
|
|
if pushed then
|
|
begin
|
|
restore(self,is_64bitint(left.resulttype.def));
|
|
set_location(left.location,location);
|
|
end;
|
|
|
|
if (left.resulttype.def.deftype=pointerdef) or
|
|
|
|
(right.resulttype.def.deftype=pointerdef) or
|
|
|
|
(is_class_or_interface(right.resulttype.def) and is_class_or_interface(left.resulttype.def)) or
|
|
|
|
(left.resulttype.def.deftype=classrefdef) or
|
|
|
|
(left.resulttype.def.deftype=procvardef) or
|
|
|
|
((left.resulttype.def.deftype=enumdef) and
|
|
(left.resulttype.def.size=4)) or
|
|
|
|
((left.resulttype.def.deftype=orddef) and
|
|
(torddef(left.resulttype.def).typ=s32bit)) or
|
|
((right.resulttype.def.deftype=orddef) and
|
|
(torddef(right.resulttype.def).typ=s32bit)) or
|
|
|
|
((left.resulttype.def.deftype=orddef) and
|
|
(torddef(left.resulttype.def).typ=u32bit)) or
|
|
((right.resulttype.def.deftype=orddef) and
|
|
(torddef(right.resulttype.def).typ=u32bit)) or
|
|
|
|
{ as well as small sets }
|
|
is_set then
|
|
begin
|
|
do_normal:
|
|
mboverflow:=false;
|
|
cmpop:=false;
|
|
unsigned := not(is_signed(left.resulttype.def)) or
|
|
not(is_signed(right.resulttype.def));
|
|
case nodetype of
|
|
addn : begin
|
|
{ this is a really ugly hack!!!!!!!!!! }
|
|
{ this could be done later using EDI }
|
|
{ as it is done for subn }
|
|
{ instead of two registers!!!! }
|
|
if is_set then
|
|
begin
|
|
{ adding elements is not commutative }
|
|
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);
|
|
{ bts requires both elements to be registers }
|
|
if left.location.loc in [LOC_MEM,LOC_REFERENCE] then
|
|
begin
|
|
ungetiftemp(left.location.reference);
|
|
del_location(left.location);
|
|
{!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!}
|
|
hregister:=getregisterint;
|
|
emit_ref_reg(A_MOV,opsize,
|
|
newreference(left.location.reference),hregister);
|
|
clear_location(left.location);
|
|
left.location.loc:=LOC_REGISTER;
|
|
left.location.register:=hregister;
|
|
set_location(location,left.location);
|
|
end;
|
|
if right.location.loc in [LOC_MEM,LOC_REFERENCE] then
|
|
begin
|
|
ungetiftemp(right.location.reference);
|
|
del_location(right.location);
|
|
hregister:=getregisterint;
|
|
emit_ref_reg(A_MOV,opsize,
|
|
newreference(right.location.reference),hregister);
|
|
clear_location(right.location);
|
|
right.location.loc:=LOC_REGISTER;
|
|
right.location.register:=hregister;
|
|
end;
|
|
op:=A_BTS;
|
|
noswap:=true;
|
|
end
|
|
else
|
|
op:=A_OR;
|
|
mboverflow:=false;
|
|
unsigned:=false;
|
|
end
|
|
else
|
|
begin
|
|
op:=A_ADD;
|
|
mboverflow:=true;
|
|
end;
|
|
end;
|
|
symdifn : begin
|
|
{ the symetric diff is only for sets }
|
|
if is_set then
|
|
begin
|
|
op:=A_XOR;
|
|
mboverflow:=false;
|
|
unsigned:=false;
|
|
end
|
|
else
|
|
CGMessage(type_e_mismatch);
|
|
end;
|
|
muln : begin
|
|
if is_set then
|
|
begin
|
|
op:=A_AND;
|
|
mboverflow:=false;
|
|
unsigned:=false;
|
|
end
|
|
else
|
|
begin
|
|
if unsigned then
|
|
op:=A_MUL
|
|
else
|
|
op:=A_IMUL;
|
|
mboverflow:=true;
|
|
end;
|
|
end;
|
|
subn : begin
|
|
if is_set then
|
|
begin
|
|
op:=A_AND;
|
|
mboverflow:=false;
|
|
unsigned:=false;
|
|
If (not (nf_swaped in flags)) and
|
|
(right.nodetype = setconstn) then
|
|
right.location.reference.offset := not(right.location.reference.offset)
|
|
Else If (nf_swaped in flags) and
|
|
(left.nodetype = setconstn) then
|
|
left.location.reference.offset := not(left.location.reference.offset)
|
|
Else
|
|
extra_not:=true;
|
|
end
|
|
else
|
|
begin
|
|
op:=A_SUB;
|
|
mboverflow:=true;
|
|
end;
|
|
end;
|
|
ltn,lten,
|
|
gtn,gten,
|
|
equaln,unequaln : begin
|
|
If is_set Then
|
|
Case nodetype of
|
|
lten,gten:
|
|
Begin
|
|
If nodetype = lten then
|
|
swapleftright;
|
|
if left.location.loc in [LOC_MEM,LOC_REFERENCE] then
|
|
begin
|
|
ungetiftemp(left.location.reference);
|
|
del_reference(left.location.reference);
|
|
hregister:=getregisterint;
|
|
emit_ref_reg(A_MOV,opsize,
|
|
newreference(left.location.reference),hregister);
|
|
clear_location(left.location);
|
|
left.location.loc:=LOC_REGISTER;
|
|
left.location.register:=hregister;
|
|
set_location(location,left.location);
|
|
end
|
|
else
|
|
if left.location.loc = LOC_CREGISTER Then
|
|
{save the register var in a temp register, because
|
|
its value is going to be modified}
|
|
begin
|
|
hregister := getregisterint;
|
|
emit_reg_reg(A_MOV,opsize,
|
|
left.location.register,hregister);
|
|
clear_location(left.location);
|
|
left.location.loc:=LOC_REGISTER;
|
|
left.location.register:=hregister;
|
|
set_location(location,left.location);
|
|
end;
|
|
{here, left.location should be LOC_REGISTER}
|
|
If right.location.loc in [LOC_MEM,LOC_REFERENCE] Then
|
|
emit_ref_reg(A_AND,opsize,
|
|
newreference(right.location.reference),left.location.register)
|
|
Else
|
|
emit_reg_reg(A_AND,opsize,
|
|
right.location.register,left.location.register);
|
|
{warning: ugly hack ahead: we need a "jne" after the cmp, so
|
|
change the nodetype from lten/gten to equaln}
|
|
nodetype := equaln
|
|
End;
|
|
{no < or > support for sets}
|
|
ltn,gtn: CGMessage(type_e_mismatch);
|
|
End;
|
|
op:=A_CMP;
|
|
cmpop:=true;
|
|
end;
|
|
xorn : op:=A_XOR;
|
|
orn : op:=A_OR;
|
|
andn : op:=A_AND;
|
|
else
|
|
CGMessage(type_e_mismatch);
|
|
end;
|
|
|
|
{ filter MUL, which requires special handling }
|
|
if op=A_MUL then
|
|
begin
|
|
popeax:=false;
|
|
popedx:=false;
|
|
{ here you need to free the symbol first }
|
|
{ left.location and right.location must }
|
|
{ only be freed when they are really released, }
|
|
{ because the optimizer NEEDS correct regalloc }
|
|
{ info!!! (JM) }
|
|
clear_location(location);
|
|
|
|
{ the location.register will be filled in later (JM) }
|
|
location.loc:=LOC_REGISTER;
|
|
{$IfNDef NoShlMul}
|
|
if right.nodetype=ordconstn then
|
|
swapleftright;
|
|
If (left.nodetype = ordconstn) and
|
|
ispowerof2(tordconstnode(left).value, power) and
|
|
not(cs_check_overflow in aktlocalswitches) then
|
|
Begin
|
|
{ This release will be moved after the next }
|
|
{ instruction by the optimizer. No need to }
|
|
{ release left.location, since it's a }
|
|
{ constant (JM) }
|
|
release_loc(right.location);
|
|
location.register := getregisterint;
|
|
emitloadord2reg(right.location,torddef(u32bittype.def),location.register,false);
|
|
emit_const_reg(A_SHL,S_L,power,location.register)
|
|
End
|
|
Else
|
|
Begin
|
|
{$EndIf NoShlMul}
|
|
regstopush := $ff;
|
|
remove_non_regvars_from_loc(right.location,regstopush);
|
|
remove_non_regvars_from_loc(left.location,regstopush);
|
|
{ now, regstopush does NOT contain EAX and/or EDX if they are }
|
|
{ used in either the left or the right location, excepts if }
|
|
{they are regvars. It DOES contain them if they are used in }
|
|
{ another location (JM) }
|
|
if not(R_EAX in unused) and ((regstopush and ($80 shr byte(R_EAX))) <> 0) then
|
|
begin
|
|
emit_reg(A_PUSH,S_L,R_EAX);
|
|
popeax:=true;
|
|
end;
|
|
if not(R_EDX in unused) and ((regstopush and ($80 shr byte(R_EDX))) <> 0) then
|
|
begin
|
|
emit_reg(A_PUSH,S_L,R_EDX);
|
|
popedx:=true;
|
|
end;
|
|
{ left.location can be R_EAX !!! }
|
|
getexplicitregister32(R_EDI);
|
|
{ load the left value }
|
|
emitloadord2reg(left.location,torddef(u32bittype.def),R_EDI,true);
|
|
release_loc(left.location);
|
|
{ allocate EAX }
|
|
if R_EAX in unused then
|
|
exprasmList.concat(Tairegalloc.Alloc(R_EAX));
|
|
{ load he right value }
|
|
emitloadord2reg(right.location,torddef(u32bittype.def),R_EAX,true);
|
|
release_loc(right.location);
|
|
{ allocate EAX if it isn't yet allocated (JM) }
|
|
if (R_EAX in unused) then
|
|
exprasmList.concat(Tairegalloc.Alloc(R_EAX));
|
|
{ also allocate EDX, since it is also modified by }
|
|
{ a mul (JM) }
|
|
if R_EDX in unused then
|
|
exprasmList.concat(Tairegalloc.Alloc(R_EDX));
|
|
emit_reg(A_MUL,S_L,R_EDI);
|
|
ungetregister32(R_EDI);
|
|
if R_EDX in unused then
|
|
exprasmList.concat(Tairegalloc.DeAlloc(R_EDX));
|
|
if R_EAX in unused then
|
|
exprasmList.concat(Tairegalloc.DeAlloc(R_EAX));
|
|
location.register := getregisterint;
|
|
emit_reg_reg(A_MOV,S_L,R_EAX,location.register);
|
|
if popedx then
|
|
emit_reg(A_POP,S_L,R_EDX);
|
|
if popeax then
|
|
emit_reg(A_POP,S_L,R_EAX);
|
|
{$IfNDef NoShlMul}
|
|
End;
|
|
{$endif NoShlMul}
|
|
SetResultLocation(false,true);
|
|
exit;
|
|
end;
|
|
|
|
{ Convert flags to register first }
|
|
if (left.location.loc=LOC_FLAGS) then
|
|
locflags2reg(left.location,opsize);
|
|
if (right.location.loc=LOC_FLAGS) then
|
|
locflags2reg(right.location,opsize);
|
|
|
|
{ left and right no register? }
|
|
{ then one must be demanded }
|
|
if (left.location.loc<>LOC_REGISTER) and
|
|
(right.location.loc<>LOC_REGISTER) then
|
|
begin
|
|
{ register variable ? }
|
|
if (left.location.loc=LOC_CREGISTER) then
|
|
begin
|
|
{ it is OK if this is the destination }
|
|
if is_in_dest then
|
|
begin
|
|
hregister:=location.register;
|
|
emit_reg_reg(A_MOV,opsize,left.location.register,
|
|
hregister);
|
|
end
|
|
else
|
|
if cmpop then
|
|
begin
|
|
{ do not disturb the register }
|
|
hregister:=location.register;
|
|
end
|
|
else
|
|
begin
|
|
case opsize of
|
|
S_L : hregister:=getregisterint;
|
|
S_B : hregister:=reg32toreg8(getregisterint);
|
|
end;
|
|
emit_reg_reg(A_MOV,opsize,left.location.register,
|
|
hregister);
|
|
end
|
|
end
|
|
else
|
|
begin
|
|
ungetiftemp(left.location.reference);
|
|
del_reference(left.location.reference);
|
|
if is_in_dest then
|
|
begin
|
|
hregister:=location.register;
|
|
emit_ref_reg(A_MOV,opsize,
|
|
newreference(left.location.reference),hregister);
|
|
end
|
|
else
|
|
begin
|
|
{ first give free, then demand new register }
|
|
case opsize of
|
|
S_L : hregister:=getregisterint;
|
|
S_W : hregister:=reg32toreg16(getregisterint);
|
|
S_B : hregister:=reg32toreg8(getregisterint);
|
|
end;
|
|
emit_ref_reg(A_MOV,opsize,
|
|
newreference(left.location.reference),hregister);
|
|
end;
|
|
end;
|
|
clear_location(location);
|
|
location.loc:=LOC_REGISTER;
|
|
location.register:=hregister;
|
|
end
|
|
else
|
|
{ if on the right the register then swap }
|
|
if not(noswap) and (right.location.loc=LOC_REGISTER) then
|
|
begin
|
|
swap_location(location,right.location);
|
|
|
|
{ newly swapped also set swapped flag }
|
|
toggleflag(nf_swaped);
|
|
end;
|
|
{ at this point, location.loc should be LOC_REGISTER }
|
|
{ and location.register should be a valid register }
|
|
{ containing the left result }
|
|
|
|
if right.location.loc<>LOC_REGISTER then
|
|
begin
|
|
if (nodetype=subn) and (nf_swaped in flags) then
|
|
begin
|
|
if right.location.loc=LOC_CREGISTER then
|
|
begin
|
|
if extra_not then
|
|
emit_reg(A_NOT,opsize,location.register);
|
|
getexplicitregister32(R_EDI);
|
|
emit_reg_reg(A_MOV,opsize,right.location.register,R_EDI);
|
|
emit_reg_reg(op,opsize,location.register,R_EDI);
|
|
emit_reg_reg(A_MOV,opsize,R_EDI,location.register);
|
|
ungetregister32(R_EDI);
|
|
end
|
|
else
|
|
begin
|
|
if extra_not then
|
|
emit_reg(A_NOT,opsize,location.register);
|
|
getexplicitregister32(R_EDI);
|
|
emit_ref_reg(A_MOV,opsize,
|
|
newreference(right.location.reference),R_EDI);
|
|
emit_reg_reg(op,opsize,location.register,R_EDI);
|
|
emit_reg_reg(A_MOV,opsize,R_EDI,location.register);
|
|
ungetregister32(R_EDI);
|
|
ungetiftemp(right.location.reference);
|
|
del_reference(right.location.reference);
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
if (right.nodetype=ordconstn) and
|
|
(op=A_CMP) and
|
|
(tordconstnode(right).value=0) then
|
|
begin
|
|
emit_reg_reg(A_TEST,opsize,location.register,
|
|
location.register);
|
|
end
|
|
else if (right.nodetype=ordconstn) and
|
|
(op=A_ADD) and
|
|
(tordconstnode(right).value=1) and
|
|
not(cs_check_overflow in aktlocalswitches) then
|
|
begin
|
|
emit_reg(A_INC,opsize,
|
|
location.register);
|
|
end
|
|
else if (right.nodetype=ordconstn) and
|
|
(op=A_SUB) and
|
|
(tordconstnode(right).value=1) and
|
|
not(cs_check_overflow in aktlocalswitches) then
|
|
begin
|
|
emit_reg(A_DEC,opsize,
|
|
location.register);
|
|
end
|
|
else if (right.nodetype=ordconstn) and
|
|
(op=A_IMUL) and
|
|
(ispowerof2(tordconstnode(right).value,power)) and
|
|
not(cs_check_overflow in aktlocalswitches) then
|
|
begin
|
|
emit_const_reg(A_SHL,opsize,power,
|
|
location.register);
|
|
end
|
|
else
|
|
begin
|
|
if (right.location.loc=LOC_CREGISTER) then
|
|
begin
|
|
if extra_not then
|
|
begin
|
|
getexplicitregister32(R_EDI);
|
|
emit_reg_reg(A_MOV,S_L,right.location.register,R_EDI);
|
|
emit_reg(A_NOT,S_L,R_EDI);
|
|
emit_reg_reg(A_AND,S_L,R_EDI,
|
|
location.register);
|
|
ungetregister32(R_EDI);
|
|
end
|
|
else
|
|
begin
|
|
emit_reg_reg(op,opsize,right.location.register,
|
|
location.register);
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
if extra_not then
|
|
begin
|
|
getexplicitregister32(R_EDI);
|
|
emit_ref_reg(A_MOV,S_L,newreference(
|
|
right.location.reference),R_EDI);
|
|
emit_reg(A_NOT,S_L,R_EDI);
|
|
emit_reg_reg(A_AND,S_L,R_EDI,
|
|
location.register);
|
|
ungetregister32(R_EDI);
|
|
end
|
|
else
|
|
begin
|
|
emit_ref_reg(op,opsize,newreference(
|
|
right.location.reference),location.register);
|
|
end;
|
|
ungetiftemp(right.location.reference);
|
|
del_reference(right.location.reference);
|
|
end;
|
|
end;
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
{ when swapped another result register }
|
|
if (nodetype=subn) and (nf_swaped in flags) then
|
|
begin
|
|
if extra_not then
|
|
emit_reg(A_NOT,S_L,location.register);
|
|
|
|
emit_reg_reg(op,opsize,
|
|
location.register,right.location.register);
|
|
swap_location(location,right.location);
|
|
{ newly swapped also set swapped flag }
|
|
{ just to maintain ordering }
|
|
toggleflag(nf_swaped);
|
|
end
|
|
else
|
|
begin
|
|
if extra_not then
|
|
emit_reg(A_NOT,S_L,right.location.register);
|
|
emit_reg_reg(op,opsize,
|
|
right.location.register,
|
|
location.register);
|
|
end;
|
|
case opsize of
|
|
S_L : ungetregister32(right.location.register);
|
|
S_B : ungetregister32(reg8toreg32(right.location.register));
|
|
end;
|
|
end;
|
|
|
|
if cmpop then
|
|
case opsize of
|
|
S_L : ungetregister32(location.register);
|
|
S_B : ungetregister32(reg8toreg32(location.register));
|
|
end;
|
|
|
|
{ only in case of overflow operations }
|
|
{ produce overflow code }
|
|
{ we must put it here directly, because sign of operation }
|
|
{ is in unsigned VAR!! }
|
|
if mboverflow then
|
|
begin
|
|
if cs_check_overflow in aktlocalswitches then
|
|
begin
|
|
getlabel(hl4);
|
|
if unsigned then
|
|
emitjmp(C_NB,hl4)
|
|
else
|
|
emitjmp(C_NO,hl4);
|
|
emitcall('FPC_OVERFLOW');
|
|
emitlab(hl4);
|
|
end;
|
|
end;
|
|
end
|
|
else
|
|
|
|
{ Char type }
|
|
if ((left.resulttype.def.deftype=orddef) and
|
|
(torddef(left.resulttype.def).typ=uchar)) or
|
|
{ enumeration type 16 bit }
|
|
((left.resulttype.def.deftype=enumdef) and
|
|
(left.resulttype.def.size=1)) then
|
|
begin
|
|
case nodetype of
|
|
ltn,lten,gtn,gten,
|
|
equaln,unequaln :
|
|
cmpop:=true;
|
|
else CGMessage(type_e_mismatch);
|
|
end;
|
|
unsigned:=true;
|
|
{ left and right no register? }
|
|
{ the one must be demanded }
|
|
if (location.loc<>LOC_REGISTER) and
|
|
(right.location.loc<>LOC_REGISTER) then
|
|
begin
|
|
if location.loc=LOC_CREGISTER then
|
|
begin
|
|
if cmpop then
|
|
{ do not disturb register }
|
|
hregister:=location.register
|
|
else
|
|
begin
|
|
hregister:=reg32toreg8(getregisterint);
|
|
emit_reg_reg(A_MOV,S_B,location.register,
|
|
hregister);
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
del_reference(location.reference);
|
|
|
|
{ first give free then demand new register }
|
|
hregister:=reg32toreg8(getregisterint);
|
|
emit_ref_reg(A_MOV,S_B,newreference(location.reference),
|
|
hregister);
|
|
end;
|
|
clear_location(location);
|
|
location.loc:=LOC_REGISTER;
|
|
location.register:=hregister;
|
|
end;
|
|
|
|
{ now p always a register }
|
|
|
|
if (right.location.loc=LOC_REGISTER) and
|
|
(location.loc<>LOC_REGISTER) then
|
|
begin
|
|
swap_location(location,right.location);
|
|
{ newly swapped also set swapped flag }
|
|
toggleflag(nf_swaped);
|
|
end;
|
|
|
|
if right.location.loc<>LOC_REGISTER then
|
|
begin
|
|
if right.location.loc=LOC_CREGISTER then
|
|
begin
|
|
emit_reg_reg(A_CMP,S_B,
|
|
right.location.register,location.register);
|
|
end
|
|
else
|
|
begin
|
|
emit_ref_reg(A_CMP,S_B,newreference(
|
|
right.location.reference),location.register);
|
|
del_reference(right.location.reference);
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
emit_reg_reg(A_CMP,S_B,right.location.register,
|
|
location.register);
|
|
ungetregister32(reg8toreg32(right.location.register));
|
|
end;
|
|
ungetregister32(reg8toreg32(location.register));
|
|
end
|
|
else
|
|
{ 16 bit enumeration type }
|
|
if ((left.resulttype.def.deftype=enumdef) and
|
|
(left.resulttype.def.size=2)) then
|
|
begin
|
|
case nodetype of
|
|
ltn,lten,gtn,gten,
|
|
equaln,unequaln :
|
|
cmpop:=true;
|
|
else CGMessage(type_e_mismatch);
|
|
end;
|
|
unsigned:=true;
|
|
{ left and right no register? }
|
|
{ the one must be demanded }
|
|
if (location.loc<>LOC_REGISTER) and
|
|
(right.location.loc<>LOC_REGISTER) then
|
|
begin
|
|
if location.loc=LOC_CREGISTER then
|
|
begin
|
|
if cmpop then
|
|
{ do not disturb register }
|
|
hregister:=location.register
|
|
else
|
|
begin
|
|
hregister:=reg32toreg16(getregisterint);
|
|
emit_reg_reg(A_MOV,S_W,location.register,
|
|
hregister);
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
del_reference(location.reference);
|
|
|
|
{ first give free then demand new register }
|
|
hregister:=reg32toreg16(getregisterint);
|
|
emit_ref_reg(A_MOV,S_W,newreference(location.reference),
|
|
hregister);
|
|
end;
|
|
clear_location(location);
|
|
location.loc:=LOC_REGISTER;
|
|
location.register:=hregister;
|
|
end;
|
|
|
|
{ now p always a register }
|
|
|
|
if (right.location.loc=LOC_REGISTER) and
|
|
(location.loc<>LOC_REGISTER) then
|
|
begin
|
|
swap_location(location,right.location);
|
|
{ newly swapped also set swapped flag }
|
|
toggleflag(nf_swaped);
|
|
end;
|
|
|
|
if right.location.loc<>LOC_REGISTER then
|
|
begin
|
|
if right.location.loc=LOC_CREGISTER then
|
|
begin
|
|
emit_reg_reg(A_CMP,S_W,
|
|
right.location.register,location.register);
|
|
end
|
|
else
|
|
begin
|
|
emit_ref_reg(A_CMP,S_W,newreference(
|
|
right.location.reference),location.register);
|
|
del_reference(right.location.reference);
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
emit_reg_reg(A_CMP,S_W,right.location.register,
|
|
location.register);
|
|
ungetregister32(reg16toreg32(right.location.register));
|
|
end;
|
|
ungetregister32(reg16toreg32(location.register));
|
|
end
|
|
else
|
|
{ 64 bit types }
|
|
if is_64bitint(left.resulttype.def) then
|
|
begin
|
|
mboverflow:=false;
|
|
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
|
|
begin
|
|
op:=A_ADD;
|
|
op2:=A_ADC;
|
|
mboverflow:=true;
|
|
end;
|
|
end;
|
|
subn : begin
|
|
op:=A_SUB;
|
|
op2:=A_SBB;
|
|
mboverflow:=true;
|
|
end;
|
|
ltn,lten,
|
|
gtn,gten,
|
|
equaln,unequaln:
|
|
begin
|
|
op:=A_CMP;
|
|
op2:=A_CMP;
|
|
cmpop:=true;
|
|
end;
|
|
|
|
xorn:
|
|
begin
|
|
op:=A_XOR;
|
|
op2:=A_XOR;
|
|
end;
|
|
|
|
orn:
|
|
begin
|
|
op:=A_OR;
|
|
op2:=A_OR;
|
|
end;
|
|
|
|
andn:
|
|
begin
|
|
op:=A_AND;
|
|
op2:=A_AND;
|
|
end;
|
|
muln:
|
|
;
|
|
else
|
|
CGMessage(type_e_mismatch);
|
|
end;
|
|
|
|
if nodetype=muln then
|
|
begin
|
|
{ should be handled in pass_1 (JM) }
|
|
internalerror(200109051);
|
|
end
|
|
else
|
|
begin
|
|
{ left and right no register? }
|
|
{ then one must be demanded }
|
|
if (left.location.loc<>LOC_REGISTER) and
|
|
(right.location.loc<>LOC_REGISTER) then
|
|
begin
|
|
{ register variable ? }
|
|
if (left.location.loc=LOC_CREGISTER) then
|
|
begin
|
|
{ it is OK if this is the destination }
|
|
if is_in_dest then
|
|
begin
|
|
hregister:=location.registerlow;
|
|
hregister2:=location.registerhigh;
|
|
emit_reg_reg(A_MOV,S_L,left.location.registerlow,
|
|
hregister);
|
|
emit_reg_reg(A_MOV,S_L,left.location.registerlow,
|
|
hregister2);
|
|
end
|
|
else
|
|
if cmpop then
|
|
begin
|
|
{ do not disturb the register }
|
|
hregister:=location.registerlow;
|
|
hregister2:=location.registerhigh;
|
|
end
|
|
else
|
|
begin
|
|
hregister:=getregisterint;
|
|
hregister2:=getregisterint;
|
|
emit_reg_reg(A_MOV,S_L,left.location.registerlow,
|
|
hregister);
|
|
emit_reg_reg(A_MOV,S_L,left.location.registerhigh,
|
|
hregister2);
|
|
end
|
|
end
|
|
else
|
|
begin
|
|
ungetiftemp(left.location.reference);
|
|
del_reference(left.location.reference);
|
|
if is_in_dest then
|
|
begin
|
|
hregister:=location.registerlow;
|
|
hregister2:=location.registerhigh;
|
|
emit_mov_ref_reg64(left.location.reference,hregister,hregister2);
|
|
end
|
|
else
|
|
begin
|
|
hregister:=getregisterint;
|
|
hregister2:=getregisterint;
|
|
emit_mov_ref_reg64(left.location.reference,hregister,hregister2);
|
|
end;
|
|
end;
|
|
clear_location(location);
|
|
location.loc:=LOC_REGISTER;
|
|
location.registerlow:=hregister;
|
|
location.registerhigh:=hregister2;
|
|
end
|
|
else
|
|
{ if on the right the register then swap }
|
|
if not(noswap) and (right.location.loc=LOC_REGISTER) then
|
|
begin
|
|
swap_location(location,right.location);
|
|
|
|
{ newly swapped also set swapped flag }
|
|
toggleflag(nf_swaped);
|
|
end;
|
|
{ at this point, location.loc should be LOC_REGISTER }
|
|
{ and location.register should be a valid register }
|
|
{ containing the left result }
|
|
|
|
if right.location.loc<>LOC_REGISTER then
|
|
begin
|
|
if (nodetype=subn) and (nf_swaped in flags) then
|
|
begin
|
|
if right.location.loc=LOC_CREGISTER then
|
|
begin
|
|
getexplicitregister32(R_EDI);
|
|
emit_reg_reg(A_MOV,opsize,right.location.register,R_EDI);
|
|
emit_reg_reg(op,opsize,location.register,R_EDI);
|
|
emit_reg_reg(A_MOV,opsize,R_EDI,location.register);
|
|
ungetregister32(R_EDI);
|
|
getexplicitregister32(R_EDI);
|
|
emit_reg_reg(A_MOV,opsize,right.location.registerhigh,R_EDI);
|
|
{ the carry flag is still ok }
|
|
emit_reg_reg(op2,opsize,location.registerhigh,R_EDI);
|
|
emit_reg_reg(A_MOV,opsize,R_EDI,location.registerhigh);
|
|
ungetregister32(R_EDI);
|
|
end
|
|
else
|
|
begin
|
|
getexplicitregister32(R_EDI);
|
|
emit_ref_reg(A_MOV,opsize,
|
|
newreference(right.location.reference),R_EDI);
|
|
emit_reg_reg(op,opsize,location.registerlow,R_EDI);
|
|
emit_reg_reg(A_MOV,opsize,R_EDI,location.registerlow);
|
|
ungetregister32(R_EDI);
|
|
getexplicitregister32(R_EDI);
|
|
hr:=newreference(right.location.reference);
|
|
inc(hr^.offset,4);
|
|
emit_ref_reg(A_MOV,opsize,
|
|
hr,R_EDI);
|
|
{ here the carry flag is still preserved }
|
|
emit_reg_reg(op2,opsize,location.registerhigh,R_EDI);
|
|
emit_reg_reg(A_MOV,opsize,R_EDI,
|
|
location.registerhigh);
|
|
ungetregister32(R_EDI);
|
|
ungetiftemp(right.location.reference);
|
|
del_reference(right.location.reference);
|
|
end;
|
|
end
|
|
else if cmpop then
|
|
begin
|
|
if (right.location.loc=LOC_CREGISTER) then
|
|
begin
|
|
emit_reg_reg(A_CMP,S_L,right.location.registerhigh,
|
|
location.registerhigh);
|
|
firstjmp64bitcmp;
|
|
emit_reg_reg(A_CMP,S_L,right.location.registerlow,
|
|
location.registerlow);
|
|
secondjmp64bitcmp;
|
|
end
|
|
else
|
|
begin
|
|
hr:=newreference(right.location.reference);
|
|
inc(hr^.offset,4);
|
|
|
|
emit_ref_reg(A_CMP,S_L,
|
|
hr,location.registerhigh);
|
|
firstjmp64bitcmp;
|
|
|
|
emit_ref_reg(A_CMP,S_L,newreference(
|
|
right.location.reference),location.registerlow);
|
|
secondjmp64bitcmp;
|
|
|
|
emitjmp(C_None,falselabel);
|
|
|
|
ungetiftemp(right.location.reference);
|
|
del_reference(right.location.reference);
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
{
|
|
if (right.nodetype=ordconstn) and
|
|
(op=A_CMP) and
|
|
(right.value=0) then
|
|
begin
|
|
emit_reg_reg(A_TEST,opsize,location.register,
|
|
location.register);
|
|
end
|
|
else if (right.nodetype=ordconstn) and
|
|
(op=A_IMUL) and
|
|
(ispowerof2(right.value,power)) then
|
|
begin
|
|
emit_const_reg(A_SHL,opsize,power,
|
|
location.register);
|
|
end
|
|
else
|
|
}
|
|
begin
|
|
if (right.location.loc=LOC_CREGISTER) then
|
|
begin
|
|
emit_reg_reg(op,S_L,right.location.registerlow,
|
|
location.registerlow);
|
|
emit_reg_reg(op2,S_L,right.location.registerhigh,
|
|
location.registerhigh);
|
|
end
|
|
else
|
|
begin
|
|
emit_ref_reg(op,S_L,newreference(
|
|
right.location.reference),location.registerlow);
|
|
hr:=newreference(right.location.reference);
|
|
inc(hr^.offset,4);
|
|
emit_ref_reg(op2,S_L,
|
|
hr,location.registerhigh);
|
|
ungetiftemp(right.location.reference);
|
|
del_reference(right.location.reference);
|
|
end;
|
|
end;
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
{ when swapped another result register }
|
|
if (nodetype=subn) and (nf_swaped in flags) then
|
|
begin
|
|
emit_reg_reg(op,S_L,
|
|
location.registerlow,
|
|
right.location.registerlow);
|
|
emit_reg_reg(op2,S_L,
|
|
location.registerhigh,
|
|
right.location.registerhigh);
|
|
swap_location(location,right.location);
|
|
{ newly swapped also set swapped flag }
|
|
{ just to maintain ordering }
|
|
toggleflag(nf_swaped);
|
|
end
|
|
else if cmpop then
|
|
begin
|
|
emit_reg_reg(A_CMP,S_L,
|
|
right.location.registerhigh,
|
|
location.registerhigh);
|
|
firstjmp64bitcmp;
|
|
emit_reg_reg(A_CMP,S_L,
|
|
right.location.registerlow,
|
|
location.registerlow);
|
|
secondjmp64bitcmp;
|
|
end
|
|
else
|
|
begin
|
|
emit_reg_reg(op,S_L,
|
|
right.location.registerlow,
|
|
location.registerlow);
|
|
emit_reg_reg(op2,S_L,
|
|
right.location.registerhigh,
|
|
location.registerhigh);
|
|
end;
|
|
ungetregister32(right.location.registerlow);
|
|
ungetregister32(right.location.registerhigh);
|
|
end;
|
|
|
|
if cmpop then
|
|
begin
|
|
ungetregister32(location.registerlow);
|
|
ungetregister32(location.registerhigh);
|
|
end;
|
|
|
|
{ only in case of overflow operations }
|
|
{ produce overflow code }
|
|
{ we must put it here directly, because sign of operation }
|
|
{ is in unsigned VAR!! }
|
|
if mboverflow then
|
|
begin
|
|
if cs_check_overflow in aktlocalswitches then
|
|
begin
|
|
getlabel(hl4);
|
|
if unsigned then
|
|
emitjmp(C_NB,hl4)
|
|
else
|
|
emitjmp(C_NO,hl4);
|
|
emitcall('FPC_OVERFLOW');
|
|
emitlab(hl4);
|
|
end;
|
|
end;
|
|
{ we have LOC_JUMP as result }
|
|
if cmpop then
|
|
begin
|
|
clear_location(location);
|
|
location.loc:=LOC_JUMP;
|
|
cmpop:=false;
|
|
end;
|
|
end;
|
|
end
|
|
else
|
|
{ Floating point }
|
|
if (left.resulttype.def.deftype=floatdef) then
|
|
begin
|
|
{ real constants to the right, but only if it
|
|
isn't on the FPU stack, i.e. 1.0 or 0.0!
|
|
if (left.nodetype=realconstn) and
|
|
(left.location.loc<>LOC_FPU) then
|
|
swapleftright; obsolete, already swaped above PM }
|
|
cmpop:=false;
|
|
case nodetype of
|
|
addn : op:=A_FADDP;
|
|
muln : op:=A_FMULP;
|
|
subn : op:=A_FSUBP;
|
|
slashn : op:=A_FDIVP;
|
|
ltn,lten,gtn,gten,
|
|
equaln,unequaln : begin
|
|
op:=A_FCOMPP;
|
|
cmpop:=true;
|
|
end;
|
|
else CGMessage(type_e_mismatch);
|
|
end;
|
|
|
|
if (right.location.loc<>LOC_FPU) then
|
|
begin
|
|
if right.location.loc=LOC_CFPUREGISTER then
|
|
begin
|
|
emit_reg( A_FLD,S_NO,
|
|
correct_fpuregister(right.location.register,fpuvaroffset));
|
|
inc(fpuvaroffset);
|
|
end
|
|
else
|
|
begin
|
|
floatload(tfloatdef(right.resulttype.def).typ,right.location.reference);
|
|
if pushedfpu then
|
|
ungetiftemp(right.location.reference);
|
|
end;
|
|
if (left.location.loc<>LOC_FPU) then
|
|
begin
|
|
if left.location.loc=LOC_CFPUREGISTER then
|
|
begin
|
|
emit_reg( A_FLD,S_NO,
|
|
correct_fpuregister(left.location.register,fpuvaroffset));
|
|
inc(fpuvaroffset);
|
|
end
|
|
else
|
|
begin
|
|
floatload(tfloatdef(left.resulttype.def).typ,left.location.reference);
|
|
if pushedfpu then
|
|
ungetiftemp(left.location.reference);
|
|
end;
|
|
end
|
|
{ left was on the stack => swap }
|
|
else
|
|
toggleflag(nf_swaped);
|
|
|
|
{ releases the right reference }
|
|
del_reference(right.location.reference);
|
|
end
|
|
{ the nominator in st0 }
|
|
else if (left.location.loc<>LOC_FPU) then
|
|
begin
|
|
if left.location.loc=LOC_CFPUREGISTER then
|
|
begin
|
|
emit_reg( A_FLD,S_NO,
|
|
correct_fpuregister(left.location.register,fpuvaroffset));
|
|
inc(fpuvaroffset);
|
|
end
|
|
else
|
|
begin
|
|
floatload(tfloatdef(left.resulttype.def).typ,left.location.reference);
|
|
if pushedfpu then
|
|
ungetiftemp(left.location.reference);
|
|
end;
|
|
end
|
|
{ fpu operands are always in the wrong order on the stack }
|
|
else
|
|
toggleflag(nf_swaped);
|
|
|
|
{ releases the left reference }
|
|
if (left.location.loc in [LOC_MEM,LOC_REFERENCE]) then
|
|
del_reference(left.location.reference);
|
|
|
|
{ if we swaped the tree nodes, then use the reverse operator }
|
|
if nf_swaped in flags then
|
|
begin
|
|
if (nodetype=slashn) then
|
|
op:=A_FDIVRP
|
|
else if (nodetype=subn) then
|
|
op:=A_FSUBRP;
|
|
end;
|
|
{ to avoid the pentium bug
|
|
if (op=FDIVP) and (opt_processors=pentium) then
|
|
emitcall('EMUL_FDIVP')
|
|
else
|
|
}
|
|
{ the Intel assemblers want operands }
|
|
if op<>A_FCOMPP then
|
|
begin
|
|
emit_reg_reg(op,S_NO,R_ST,R_ST1);
|
|
dec(fpuvaroffset);
|
|
end
|
|
else
|
|
begin
|
|
emit_none(op,S_NO);
|
|
dec(fpuvaroffset,2);
|
|
end;
|
|
|
|
{ on comparison load flags }
|
|
if cmpop then
|
|
begin
|
|
if not(R_EAX in unused) then
|
|
begin
|
|
getexplicitregister32(R_EDI);
|
|
emit_reg_reg(A_MOV,S_L,R_EAX,R_EDI);
|
|
end;
|
|
emit_reg(A_FNSTSW,S_NO,R_AX);
|
|
emit_none(A_SAHF,S_NO);
|
|
if not(R_EAX in unused) then
|
|
begin
|
|
emit_reg_reg(A_MOV,S_L,R_EDI,R_EAX);
|
|
ungetregister32(R_EDI);
|
|
end;
|
|
if nf_swaped in flags then
|
|
begin
|
|
case nodetype of
|
|
equaln : resflags:=F_E;
|
|
unequaln : resflags:=F_NE;
|
|
ltn : resflags:=F_A;
|
|
lten : resflags:=F_AE;
|
|
gtn : resflags:=F_B;
|
|
gten : resflags:=F_BE;
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
case nodetype of
|
|
equaln : resflags:=F_E;
|
|
unequaln : resflags:=F_NE;
|
|
ltn : resflags:=F_B;
|
|
lten : resflags:=F_BE;
|
|
gtn : resflags:=F_A;
|
|
gten : resflags:=F_AE;
|
|
end;
|
|
end;
|
|
clear_location(location);
|
|
location.loc:=LOC_FLAGS;
|
|
location.resflags:=resflags;
|
|
cmpop:=false;
|
|
end
|
|
else
|
|
begin
|
|
clear_location(location);
|
|
location.loc:=LOC_FPU;
|
|
end;
|
|
end
|
|
{$ifdef SUPPORT_MMX}
|
|
else
|
|
|
|
{ MMX Arrays }
|
|
if is_mmx_able_array(left.resulttype.def) then
|
|
begin
|
|
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;
|
|
{
|
|
ltn,lten,gtn,gten,
|
|
equaln,unequaln :
|
|
begin
|
|
op:=A_CMP;
|
|
cmpop:=true;
|
|
end;
|
|
}
|
|
xorn:
|
|
op:=A_PXOR;
|
|
orn:
|
|
op:=A_POR;
|
|
andn:
|
|
op:=A_PAND;
|
|
else CGMessage(type_e_mismatch);
|
|
end;
|
|
{ left and right no register? }
|
|
{ then one must be demanded }
|
|
if (left.location.loc<>LOC_MMXREGISTER) and
|
|
(right.location.loc<>LOC_MMXREGISTER) then
|
|
begin
|
|
{ register variable ? }
|
|
if (left.location.loc=LOC_CMMXREGISTER) then
|
|
begin
|
|
{ it is OK if this is the destination }
|
|
if is_in_dest then
|
|
begin
|
|
hregister:=location.register;
|
|
emit_reg_reg(A_MOVQ,S_NO,left.location.register,
|
|
hregister);
|
|
end
|
|
else
|
|
begin
|
|
hregister:=getregistermmx;
|
|
emit_reg_reg(A_MOVQ,S_NO,left.location.register,
|
|
hregister);
|
|
end
|
|
end
|
|
else
|
|
begin
|
|
del_reference(left.location.reference);
|
|
|
|
if is_in_dest then
|
|
begin
|
|
hregister:=location.register;
|
|
emit_ref_reg(A_MOVQ,S_NO,
|
|
newreference(left.location.reference),hregister);
|
|
end
|
|
else
|
|
begin
|
|
hregister:=getregistermmx;
|
|
emit_ref_reg(A_MOVQ,S_NO,
|
|
newreference(left.location.reference),hregister);
|
|
end;
|
|
end;
|
|
clear_location(location);
|
|
location.loc:=LOC_MMXREGISTER;
|
|
location.register:=hregister;
|
|
end
|
|
else
|
|
{ if on the right the register then swap }
|
|
if (right.location.loc=LOC_MMXREGISTER) then
|
|
begin
|
|
swap_location(location,right.location);
|
|
{ newly swapped also set swapped flag }
|
|
toggleflag(nf_swaped);
|
|
end;
|
|
{ at this point, location.loc should be LOC_MMXREGISTER }
|
|
{ and location.register should be a valid register }
|
|
{ containing the left result }
|
|
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,location.register,R_MM0);
|
|
emit_reg_reg(A_MOVQ,S_NO,R_MM7,location.register);
|
|
end
|
|
else
|
|
begin
|
|
emit_ref_reg(A_MOVQ,S_NO,
|
|
newreference(right.location.reference),R_MM7);
|
|
emit_reg_reg(op,S_NO,location.register,
|
|
R_MM7);
|
|
emit_reg_reg(A_MOVQ,S_NO,
|
|
R_MM7,location.register);
|
|
del_reference(right.location.reference);
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
if (right.location.loc=LOC_CREGISTER) then
|
|
begin
|
|
emit_reg_reg(op,S_NO,right.location.register,
|
|
location.register);
|
|
end
|
|
else
|
|
begin
|
|
emit_ref_reg(op,S_NO,newreference(
|
|
right.location.reference),location.register);
|
|
del_reference(right.location.reference);
|
|
end;
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
{ when swapped another result register }
|
|
if (nodetype=subn) and (nf_swaped in flags) then
|
|
begin
|
|
emit_reg_reg(op,S_NO,
|
|
location.register,right.location.register);
|
|
swap_location(location,right.location);
|
|
{ newly swapped also set swapped flag }
|
|
{ just to maintain ordering }
|
|
toggleflag(nf_swaped);
|
|
end
|
|
else
|
|
begin
|
|
emit_reg_reg(op,S_NO,
|
|
right.location.register,
|
|
location.register);
|
|
end;
|
|
ungetregistermmx(right.location.register);
|
|
end;
|
|
end
|
|
{$endif SUPPORT_MMX}
|
|
else CGMessage(type_e_mismatch);
|
|
end;
|
|
SetResultLocation(cmpop,unsigned);
|
|
end;
|
|
|
|
begin
|
|
caddnode:=ti386addnode;
|
|
end.
|
|
{
|
|
$Log$
|
|
Revision 1.29 2002-03-04 19:10:13 peter
|
|
* removed compiler warnings
|
|
|
|
Revision 1.28 2001/12/30 17:24:46 jonas
|
|
* range checking is now processor independent (part in cgobj,
|
|
part in cg64f32) and should work correctly again (it needed
|
|
some changes after the changes of the low and high of
|
|
tordef's to int64)
|
|
* maketojumpbool() is now processor independent (in ncgutil)
|
|
* getregister32 is now called getregisterint
|
|
|
|
Revision 1.27 2001/12/29 15:29:58 jonas
|
|
* powerpc/cgcpu.pas compiles :)
|
|
* several powerpc-related fixes
|
|
* cpuasm unit is now based on common tainst unit
|
|
+ nppcmat unit for powerpc (almost complete)
|
|
|
|
Revision 1.25 2001/10/12 13:51:51 jonas
|
|
* fixed internalerror(10) due to previous fpu overflow fixes ("merged")
|
|
* fixed bug in n386add (introduced after compilerproc changes for string
|
|
operations) where calcregisters wasn't called for shortstring addnodes
|
|
* NOTE: from now on, the location of a binary node must now always be set
|
|
before you call calcregisters() for it
|
|
|
|
Revision 1.24 2001/09/17 21:29:13 peter
|
|
* merged netbsd, fpu-overflow from fixes branch
|
|
|
|
Revision 1.23 2001/09/05 15:22:09 jonas
|
|
* made multiplying, dividing and mod'ing of int64 and qword processor
|
|
independent with compilerprocs (+ small optimizations by using shift/and
|
|
where possible)
|
|
|
|
Revision 1.22 2001/09/04 11:38:55 jonas
|
|
+ searchsystype() and searchsystype() functions in symtable
|
|
* changed ninl and nadd to use these functions
|
|
* i386 set comparison functions now return their results in al instead
|
|
of in the flags so that they can be sued as compilerprocs
|
|
- removed all processor specific code from n386add.pas that has to do
|
|
with set handling, it's now all done in nadd.pas
|
|
* fixed fpc_set_contains_sets in genset.inc
|
|
* fpc_set_in_byte is now coded inline in n386set.pas and doesn't use a
|
|
helper anymore
|
|
* some small fixes in compproc.inc/set.inc regarding the declaration of
|
|
internal helper types (fpc_small_set and fpc_normal_set)
|
|
|
|
Revision 1.21 2001/09/03 13:27:42 jonas
|
|
* compilerproc implementation of set addition/substraction/...
|
|
* changed the declaration of some set helpers somewhat to accomodate the
|
|
above change
|
|
* i386 still uses the old code for comparisons of sets, because its
|
|
helpers return the results in the flags
|
|
* dummy tc_normal_2_small_set type conversion because I need the original
|
|
resulttype of the set add nodes
|
|
NOTE: you have to start a cycle with 1.0.5!
|
|
|
|
Revision 1.20 2001/08/30 15:43:14 jonas
|
|
* converted adding/comparing of strings to compileproc. Note that due
|
|
to the way the shortstring helpers for i386 are written, they are
|
|
still handled by the old code (reason: fpc_shortstr_compare returns
|
|
results in the flags instead of in eax and fpc_shortstr_concat
|
|
has wierd parameter conventions). The compilerproc stuff should work
|
|
fine with the generic implementations though.
|
|
* removed some nested comments warnings
|
|
|
|
Revision 1.19 2001/08/29 17:50:45 jonas
|
|
* removed unused var
|
|
|
|
Revision 1.18 2001/08/29 12:03:23 jonas
|
|
* fixed wrong regalloc info around FPC_MUL/DIV/MOD_INT64/QWORD calls
|
|
* fixed partial result overwriting with the above calls too
|
|
|
|
Revision 1.17 2001/08/26 13:36:55 florian
|
|
* some cg reorganisation
|
|
* some PPC updates
|
|
|
|
Revision 1.16 2001/07/08 21:00:16 peter
|
|
* various widestring updates, it works now mostly without charset
|
|
mapping supported
|
|
|
|
Revision 1.15 2001/06/25 14:11:37 jonas
|
|
* fixed set bug discovered by Carl (merged)
|
|
|
|
Revision 1.14 2001/06/18 20:36:25 peter
|
|
* -Ur switch (merged)
|
|
* masm fixes (merged)
|
|
* quoted filenames for go32v2 and win32
|
|
|
|
Revision 1.13 2001/05/27 14:30:56 florian
|
|
+ some widestring stuff added
|
|
|
|
Revision 1.12 2001/05/06 17:12:14 jonas
|
|
* fixed an IE10 and another bug with [var1..var2] construct
|
|
|
|
Revision 1.11 2001/04/13 01:22:18 peter
|
|
* symtable change to classes
|
|
* range check generation and errors fixed, make cycle DEBUG=1 works
|
|
* memory leaks fixed
|
|
|
|
Revision 1.10 2001/04/02 21:20:36 peter
|
|
* resulttype rewrite
|
|
|
|
Revision 1.9 2000/12/31 11:14:11 jonas
|
|
+ implemented/fixed docompare() mathods for all nodes (not tested)
|
|
+ nopt.pas, nadd.pas, i386/n386opt.pas: optimized nodes for adding strings
|
|
and constant strings/chars together
|
|
* n386add.pas: don't copy temp strings (of size 256) to another temp string
|
|
when adding
|
|
|
|
Revision 1.8 2000/12/25 00:07:32 peter
|
|
+ new tlinkedlist class (merge of old tstringqueue,tcontainer and
|
|
tlinkedlist objects)
|
|
|
|
Revision 1.7 2000/12/16 15:56:18 jonas
|
|
- removed all ifdef cardinalmulfix code
|
|
|
|
Revision 1.6 2000/12/05 11:44:32 jonas
|
|
+ new integer regvar handling, should be much more efficient
|
|
|
|
Revision 1.5 2000/11/29 00:30:45 florian
|
|
* unused units removed from uses clause
|
|
* some changes for widestrings
|
|
|
|
Revision 1.4 2000/11/13 11:30:56 florian
|
|
* some bugs with interfaces and NIL fixed
|
|
|
|
Revision 1.3 2000/11/04 14:25:23 florian
|
|
+ merged Attila's changes for interfaces, not tested yet
|
|
|
|
Revision 1.2 2000/10/31 22:02:56 peter
|
|
* symtable splitted, no real code changes
|
|
|
|
Revision 1.1 2000/10/15 09:33:31 peter
|
|
* moved n386*.pas to i386/ cpu_target dir
|
|
|
|
Revision 1.6 2000/10/14 10:14:47 peter
|
|
* moehrendorf oct 2000 rewrite
|
|
|
|
Revision 1.5 2000/09/30 16:08:45 peter
|
|
* more cg11 updates
|
|
|
|
Revision 1.4 2000/09/24 15:06:18 peter
|
|
* use defines.inc
|
|
|
|
Revision 1.3 2000/09/22 22:42:52 florian
|
|
* more fixes
|
|
|
|
Revision 1.2 2000/09/21 12:24:22 jonas
|
|
* small fix to my changes for full boolean evaluation support (moved
|
|
opsize determination for boolean operations back in boolean
|
|
processing block)
|
|
+ full boolean evaluation support (from cg386add)
|
|
|
|
Revision 1.1 2000/09/20 21:23:32 florian
|
|
* initial revision
|
|
}
|