mirror of
https://gitlab.com/freepascal.org/fpc/source.git
synced 2025-11-04 06:39:25 +01:00
555 lines
18 KiB
ObjectPascal
555 lines
18 KiB
ObjectPascal
{
|
|
$Id$
|
|
Copyright (c) 2000 by Florian Klaempfl
|
|
|
|
Type checking and register allocation for math nodes
|
|
|
|
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 nmat;
|
|
|
|
{$i defines.inc}
|
|
|
|
interface
|
|
|
|
uses
|
|
node;
|
|
|
|
type
|
|
tmoddivnode = class(tbinopnode)
|
|
function pass_1 : tnode;override;
|
|
end;
|
|
|
|
tshlshrnode = class(tbinopnode)
|
|
function pass_1 : tnode;override;
|
|
end;
|
|
|
|
tunaryminusnode = class(tunarynode)
|
|
constructor create(expr : tnode);virtual;
|
|
function pass_1 : tnode;override;
|
|
end;
|
|
|
|
tnotnode = class(tunarynode)
|
|
constructor create(expr : tnode);virtual;
|
|
function pass_1 : tnode;override;
|
|
end;
|
|
|
|
var
|
|
cmoddivnode : class of tmoddivnode;
|
|
cshlshrnode : class of tshlshrnode;
|
|
cunaryminusnode : class of tunaryminusnode;
|
|
cnotnode : class of tnotnode;
|
|
|
|
|
|
implementation
|
|
|
|
uses
|
|
globtype,systems,tokens,
|
|
cobjects,verbose,globals,
|
|
symconst,symtype,symtable,symdef,aasm,types,
|
|
htypechk,pass_1,cpubase,cpuinfo,
|
|
{$ifdef newcg}
|
|
cgbase,
|
|
{$else newcg}
|
|
hcodegen,
|
|
{$endif newcg}
|
|
{ for isbinaryoverloaded function }
|
|
nadd,
|
|
ncon,ncnv,ncal;
|
|
|
|
{****************************************************************************
|
|
TMODDIVNODE
|
|
****************************************************************************}
|
|
function tmoddivnode.pass_1 : tnode;
|
|
var
|
|
t : tnode;
|
|
rv,lv : tconstexprint;
|
|
rd,ld : pdef;
|
|
|
|
begin
|
|
pass_1:=nil;
|
|
firstpass(left);
|
|
set_varstate(right,true);
|
|
firstpass(right);
|
|
set_varstate(right,true);
|
|
if codegenerror then
|
|
exit;
|
|
|
|
t:=self;
|
|
if isbinaryoverloaded(t) then
|
|
begin
|
|
pass_1:=t;
|
|
exit;
|
|
end;
|
|
|
|
{ check for division by zero }
|
|
rv:=tordconstnode(right).value;
|
|
lv:=tordconstnode(left).value;
|
|
if is_constintnode(right) and (rv=0) then
|
|
begin
|
|
Message(parser_e_division_by_zero);
|
|
{ recover }
|
|
rv:=1;
|
|
end;
|
|
|
|
if is_constintnode(left) and is_constintnode(right) then
|
|
begin
|
|
case nodetype of
|
|
modn:
|
|
t:=genintconstnode(lv mod rv);
|
|
divn:
|
|
t:=genintconstnode(lv div rv);
|
|
end;
|
|
firstpass(t);
|
|
pass_1:=t;
|
|
exit;
|
|
end;
|
|
if (left.resulttype^.deftype=orddef) and (right.resulttype^.deftype=orddef) and
|
|
(is_64bitint(left.resulttype) or is_64bitint(right.resulttype)) then
|
|
begin
|
|
rd:=right.resulttype;
|
|
ld:=left.resulttype;
|
|
if (porddef(rd)^.typ=s64bit) or (porddef(ld)^.typ=s64bit) then
|
|
begin
|
|
if (porddef(ld)^.typ<>s64bit) then
|
|
begin
|
|
left:=gentypeconvnode(left,cs64bitdef);
|
|
firstpass(left);
|
|
end;
|
|
if (porddef(rd)^.typ<>s64bit) then
|
|
begin
|
|
right:=gentypeconvnode(right,cs64bitdef);
|
|
firstpass(right);
|
|
end;
|
|
calcregisters(self,2,0,0);
|
|
end
|
|
else if (porddef(rd)^.typ=u64bit) or (porddef(ld)^.typ=u64bit) then
|
|
begin
|
|
if (porddef(ld)^.typ<>u64bit) then
|
|
begin
|
|
left:=gentypeconvnode(left,cu64bitdef);
|
|
firstpass(left);
|
|
end;
|
|
if (porddef(rd)^.typ<>u64bit) then
|
|
begin
|
|
right:=gentypeconvnode(right,cu64bitdef);
|
|
firstpass(right);
|
|
end;
|
|
calcregisters(self,2,0,0);
|
|
end;
|
|
resulttype:=left.resulttype;
|
|
end
|
|
else
|
|
begin
|
|
if not(right.resulttype^.deftype=orddef) or
|
|
not(porddef(right.resulttype)^.typ in [s32bit,u32bit]) then
|
|
right:=gentypeconvnode(right,s32bitdef);
|
|
|
|
if not(left.resulttype^.deftype=orddef) or
|
|
not(porddef(left.resulttype)^.typ in [s32bit,u32bit]) then
|
|
left:=gentypeconvnode(left,s32bitdef);
|
|
|
|
firstpass(left);
|
|
firstpass(right);
|
|
|
|
{$ifdef cardinalmulfix}
|
|
{ if we divide a u32bit by a positive constant, the result is also u32bit (JM) }
|
|
if (left.resulttype^.deftype = orddef) and
|
|
(left.resulttype^.deftype = orddef) then
|
|
begin
|
|
if (porddef(left.resulttype)^.typ = u32bit) and
|
|
is_constintnode(right) and
|
|
{ (porddef(right.resulttype)^.typ <> u32bit) and}
|
|
(right.value > 0) then
|
|
begin
|
|
right := gentypeconvnode(right,u32bitdef);
|
|
firstpass(right);
|
|
end;
|
|
{ adjust also the left resulttype if necessary }
|
|
if (porddef(right.resulttype)^.typ = u32bit) and
|
|
is_constintnode(left) and
|
|
{ (porddef(left.resulttype)^.typ <> u32bit) and}
|
|
(left.value > 0) then
|
|
begin
|
|
left := gentypeconvnode(left,u32bitdef);
|
|
firstpass(left);
|
|
end;
|
|
end;
|
|
{$endif cardinalmulfix}
|
|
|
|
{ the resulttype depends on the right side, because the left becomes }
|
|
{ always 64 bit }
|
|
resulttype:=right.resulttype;
|
|
|
|
if codegenerror then
|
|
exit;
|
|
|
|
left_right_max;
|
|
if left.registers32<=right.registers32 then
|
|
inc(registers32);
|
|
end;
|
|
location.loc:=LOC_REGISTER;
|
|
end;
|
|
|
|
|
|
|
|
{****************************************************************************
|
|
TSHLSHRNODE
|
|
****************************************************************************}
|
|
|
|
function tshlshrnode.pass_1 : tnode;
|
|
var
|
|
t : tnode;
|
|
regs : longint;
|
|
begin
|
|
pass_1:=nil;
|
|
firstpass(left);
|
|
set_varstate(left,true);
|
|
firstpass(right);
|
|
set_varstate(right,true);
|
|
if codegenerror then
|
|
exit;
|
|
|
|
t:=self;
|
|
if isbinaryoverloaded(t) then
|
|
begin
|
|
pass_1:=t;
|
|
exit;
|
|
end;
|
|
|
|
if is_constintnode(left) and is_constintnode(right) then
|
|
begin
|
|
case nodetype of
|
|
shrn:
|
|
t:=genintconstnode(tordconstnode(left).value shr tordconstnode(right).value);
|
|
shln:
|
|
t:=genintconstnode(tordconstnode(left).value shl tordconstnode(right).value);
|
|
end;
|
|
firstpass(t);
|
|
pass_1:=t;
|
|
exit;
|
|
end;
|
|
{ 64 bit ints have their own shift handling }
|
|
if not(is_64bitint(left.resulttype)) then
|
|
begin
|
|
left:=gentypeconvnode(left,s32bitdef);
|
|
firstpass(left);
|
|
regs:=1;
|
|
resulttype:=s32bitdef;
|
|
end
|
|
else
|
|
begin
|
|
resulttype:=left.resulttype;
|
|
regs:=2;
|
|
end;
|
|
|
|
right:=gentypeconvnode(right,s32bitdef);
|
|
firstpass(right);
|
|
|
|
if codegenerror then
|
|
exit;
|
|
|
|
if (right.nodetype<>ordconstn) then
|
|
inc(regs);
|
|
calcregisters(self,regs,0,0);
|
|
|
|
location.loc:=LOC_REGISTER;
|
|
end;
|
|
|
|
|
|
{****************************************************************************
|
|
TUNARYMINUSNODE
|
|
****************************************************************************}
|
|
constructor tunaryminusnode.create(expr : tnode);
|
|
|
|
begin
|
|
inherited create(unaryminusn,expr);
|
|
end;
|
|
|
|
function tunaryminusnode.pass_1 : tnode;
|
|
var
|
|
t : tnode;
|
|
minusdef : pprocdef;
|
|
begin
|
|
pass_1:=nil;
|
|
firstpass(left);
|
|
set_varstate(left,true);
|
|
registers32:=left.registers32;
|
|
registersfpu:=left.registersfpu;
|
|
{$ifdef SUPPORT_MMX}
|
|
registersmmx:=left.registersmmx;
|
|
{$endif SUPPORT_MMX}
|
|
resulttype:=left.resulttype;
|
|
if codegenerror then
|
|
exit;
|
|
if is_constintnode(left) then
|
|
begin
|
|
t:=genintconstnode(-tordconstnode(left).value);
|
|
firstpass(t);
|
|
pass_1:=t;
|
|
exit;
|
|
end;
|
|
{ nasm can not cope with negativ reals !! }
|
|
if is_constrealnode(left)
|
|
{$ifdef i386}
|
|
and not(aktoutputformat in [as_i386_nasmcoff,as_i386_nasmelf,as_i386_nasmobj])
|
|
{$endif i386}
|
|
then
|
|
begin
|
|
t:=genrealconstnode(-trealconstnode(left).value_real,bestrealdef^);
|
|
firstpass(t);
|
|
pass_1:=t;
|
|
exit;
|
|
end;
|
|
if (left.resulttype^.deftype=floatdef) then
|
|
begin
|
|
if pfloatdef(left.resulttype)^.typ=f32bit then
|
|
begin
|
|
if (left.location.loc<>LOC_REGISTER) and
|
|
(registers32<1) then
|
|
registers32:=1;
|
|
location.loc:=LOC_REGISTER;
|
|
end
|
|
else
|
|
location.loc:=LOC_FPU;
|
|
end
|
|
{$ifdef SUPPORT_MMX}
|
|
else if (cs_mmx in aktlocalswitches) and
|
|
is_mmx_able_array(left.resulttype) then
|
|
begin
|
|
if (left.location.loc<>LOC_MMXREGISTER) and
|
|
(registersmmx<1) then
|
|
registersmmx:=1;
|
|
{ if saturation is on, left.resulttype isn't
|
|
"mmx able" (FK)
|
|
if (cs_mmx_saturation in aktlocalswitches^) and
|
|
(porddef(parraydef(resulttype)^.definition)^.typ in
|
|
[s32bit,u32bit]) then
|
|
CGMessage(type_e_mismatch);
|
|
}
|
|
end
|
|
{$endif SUPPORT_MMX}
|
|
else if is_64bitint(left.resulttype) then
|
|
begin
|
|
firstpass(left);
|
|
registersfpu:=left.registersfpu;
|
|
{$ifdef SUPPORT_MMX}
|
|
registersmmx:=left.registersmmx;
|
|
{$endif SUPPORT_MMX}
|
|
registers32:=left.registers32;
|
|
if codegenerror then
|
|
exit;
|
|
if (left.location.loc<>LOC_REGISTER) and
|
|
(registers32<2) then
|
|
registers32:=2;
|
|
location.loc:=LOC_REGISTER;
|
|
resulttype:=left.resulttype;
|
|
end
|
|
else if (left.resulttype^.deftype=orddef) then
|
|
begin
|
|
left:=gentypeconvnode(left,s32bitdef);
|
|
firstpass(left);
|
|
registersfpu:=left.registersfpu;
|
|
{$ifdef SUPPORT_MMX}
|
|
registersmmx:=left.registersmmx;
|
|
{$endif SUPPORT_MMX}
|
|
registers32:=left.registers32;
|
|
if codegenerror then
|
|
exit;
|
|
if (left.location.loc<>LOC_REGISTER) and
|
|
(registers32<1) then
|
|
registers32:=1;
|
|
location.loc:=LOC_REGISTER;
|
|
resulttype:=left.resulttype;
|
|
end
|
|
else
|
|
begin
|
|
if assigned(overloaded_operators[_minus]) then
|
|
minusdef:=overloaded_operators[_minus]^.definition
|
|
else
|
|
minusdef:=nil;
|
|
while assigned(minusdef) do
|
|
begin
|
|
if is_equal(pparaitem(minusdef^.para^.first)^.paratype.def,left.resulttype) and
|
|
(pparaitem(minusdef^.para^.first)^.next=nil) then
|
|
begin
|
|
t:=gencallnode(overloaded_operators[_minus],nil);
|
|
tcallnode(t).left:=gencallparanode(left,nil);
|
|
left:=nil;
|
|
firstpass(t);
|
|
pass_1:=t;
|
|
exit;
|
|
end;
|
|
minusdef:=minusdef^.nextoverloaded;
|
|
end;
|
|
CGMessage(type_e_mismatch);
|
|
end;
|
|
end;
|
|
|
|
|
|
{****************************************************************************
|
|
TNOTNODE
|
|
****************************************************************************}
|
|
|
|
constructor tnotnode.create(expr : tnode);
|
|
|
|
begin
|
|
inherited create(notn,expr);
|
|
end;
|
|
|
|
function tnotnode.pass_1 : tnode;
|
|
var
|
|
t : tnode;
|
|
notdef : pprocdef;
|
|
begin
|
|
pass_1:=nil;
|
|
firstpass(left);
|
|
set_varstate(left,true);
|
|
if codegenerror then
|
|
exit;
|
|
|
|
if (left.nodetype=ordconstn) then
|
|
begin
|
|
if is_boolean(left.resulttype) then
|
|
{ here we do a boolena(byte(..)) type cast because }
|
|
{ boolean(<int64>) is buggy in 1.00 }
|
|
t:=genordinalconstnode(byte(not(boolean(byte(tordconstnode(left).value)))),left.resulttype)
|
|
else
|
|
t:=genordinalconstnode(not(tordconstnode(left).value),left.resulttype);
|
|
firstpass(t);
|
|
pass_1:=t;
|
|
exit;
|
|
end;
|
|
resulttype:=left.resulttype;
|
|
location.loc:=left.location.loc;
|
|
{$ifdef SUPPORT_MMX}
|
|
registersmmx:=left.registersmmx;
|
|
{$endif SUPPORT_MMX}
|
|
if is_boolean(resulttype) then
|
|
begin
|
|
registers32:=left.registers32;
|
|
if (location.loc in [LOC_REFERENCE,LOC_MEM,LOC_CREGISTER]) then
|
|
begin
|
|
location.loc:=LOC_REGISTER;
|
|
if (registers32<1) then
|
|
registers32:=1;
|
|
end;
|
|
{ before loading it into flags we need to load it into
|
|
a register thus 1 register is need PM }
|
|
{$ifdef i386}
|
|
if left.location.loc<>LOC_JUMP then
|
|
location.loc:=LOC_FLAGS;
|
|
{$endif def i386}
|
|
end
|
|
else
|
|
{$ifdef SUPPORT_MMX}
|
|
if (cs_mmx in aktlocalswitches) and
|
|
is_mmx_able_array(left.resulttype) then
|
|
begin
|
|
if (left.location.loc<>LOC_MMXREGISTER) and
|
|
(registersmmx<1) then
|
|
registersmmx:=1;
|
|
end
|
|
else
|
|
{$endif SUPPORT_MMX}
|
|
if is_64bitint(left.resulttype) then
|
|
begin
|
|
registers32:=left.registers32;
|
|
if (location.loc in [LOC_REFERENCE,LOC_MEM,LOC_CREGISTER]) then
|
|
begin
|
|
location.loc:=LOC_REGISTER;
|
|
if (registers32<2) then
|
|
registers32:=2;
|
|
end;
|
|
end
|
|
else if is_integer(left.resulttype) then
|
|
begin
|
|
left:=gentypeconvnode(left,s32bitdef);
|
|
firstpass(left);
|
|
if codegenerror then
|
|
exit;
|
|
|
|
resulttype:=left.resulttype;
|
|
registers32:=left.registers32;
|
|
{$ifdef SUPPORT_MMX}
|
|
registersmmx:=left.registersmmx;
|
|
{$endif SUPPORT_MMX}
|
|
|
|
if (left.location.loc<>LOC_REGISTER) and
|
|
(registers32<1) then
|
|
registers32:=1;
|
|
location.loc:=LOC_REGISTER;
|
|
end
|
|
else
|
|
begin
|
|
if assigned(overloaded_operators[_op_not]) then
|
|
notdef:=overloaded_operators[_op_not]^.definition
|
|
else
|
|
notdef:=nil;
|
|
while assigned(notdef) do
|
|
begin
|
|
if is_equal(pparaitem(notdef^.para^.first)^.paratype.def,left.resulttype) and
|
|
(pparaitem(notdef^.para^.first)^.next=nil) then
|
|
begin
|
|
t:=gencallnode(overloaded_operators[_op_not],nil);
|
|
tcallnode(t).left:=gencallparanode(left,nil);
|
|
left:=nil;
|
|
firstpass(t);
|
|
pass_1:=t;
|
|
exit;
|
|
end;
|
|
notdef:=notdef^.nextoverloaded;
|
|
end;
|
|
CGMessage(type_e_mismatch);
|
|
end;
|
|
|
|
registersfpu:=left.registersfpu;
|
|
end;
|
|
|
|
|
|
begin
|
|
cmoddivnode:=tmoddivnode;
|
|
cshlshrnode:=tshlshrnode;
|
|
cunaryminusnode:=tunaryminusnode;
|
|
cnotnode:=tnotnode;
|
|
end.
|
|
{
|
|
$Log$
|
|
Revision 1.8 2000-10-31 22:02:49 peter
|
|
* symtable splitted, no real code changes
|
|
|
|
Revision 1.7 2000/10/01 19:48:24 peter
|
|
* lot of compile updates for cg11
|
|
|
|
Revision 1.6 2000/09/27 21:33:22 florian
|
|
* finally nadd.pas compiles
|
|
|
|
Revision 1.5 2000/09/27 20:25:44 florian
|
|
* more stuff fixed
|
|
|
|
Revision 1.4 2000/09/24 15:06:19 peter
|
|
* use defines.inc
|
|
|
|
Revision 1.3 2000/09/22 22:48:54 florian
|
|
* some fixes
|
|
|
|
Revision 1.2 2000/09/22 22:09:54 florian
|
|
* more stuff converted
|
|
|
|
Revision 1.1 2000/09/20 21:35:12 florian
|
|
* initial revision
|
|
} |