mirror of
https://gitlab.com/freepascal.org/fpc/source.git
synced 2025-05-05 13:32:36 +02:00
755 lines
25 KiB
ObjectPascal
755 lines
25 KiB
ObjectPascal
{
|
|
$Id$
|
|
Copyright (c) 1998-2002 by Florian Klaempfl
|
|
|
|
Generate assembler for nodes that influence the flow which are
|
|
the same for all (most?) processors
|
|
|
|
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 ncgflw;
|
|
|
|
{$i fpcdefs.inc}
|
|
|
|
interface
|
|
|
|
uses
|
|
node,nflw;
|
|
|
|
type
|
|
tcgwhilerepeatnode = class(twhilerepeatnode)
|
|
procedure pass_2;override;
|
|
end;
|
|
|
|
tcgifnode = class(tifnode)
|
|
procedure pass_2;override;
|
|
end;
|
|
|
|
tcgfornode = class(tfornode)
|
|
procedure pass_2;override;
|
|
end;
|
|
|
|
tcgexitnode = class(texitnode)
|
|
procedure pass_2;override;
|
|
end;
|
|
|
|
tcgbreaknode = class(tbreaknode)
|
|
procedure pass_2;override;
|
|
end;
|
|
|
|
tcgcontinuenode = class(tcontinuenode)
|
|
procedure pass_2;override;
|
|
end;
|
|
|
|
tcggotonode = class(tgotonode)
|
|
procedure pass_2;override;
|
|
end;
|
|
|
|
tcglabelnode = class(tlabelnode)
|
|
procedure pass_2;override;
|
|
end;
|
|
|
|
tcgfailnode = class(tfailnode)
|
|
procedure pass_2;override;
|
|
end;
|
|
|
|
implementation
|
|
|
|
uses
|
|
verbose,globals,systems,globtype,
|
|
symconst,symsym,aasmbase,aasmtai,aasmcpu,defbase,
|
|
cginfo,cgbase,pass_2,
|
|
cpubase,cpuinfo,
|
|
nld,ncon,
|
|
ncgutil,
|
|
cga,
|
|
tgobj,rgobj,
|
|
regvars,cgobj,cgcpu,cg64f32;
|
|
|
|
{*****************************************************************************
|
|
Second_While_RepeatN
|
|
*****************************************************************************}
|
|
|
|
procedure tcgwhilerepeatnode.pass_2;
|
|
var
|
|
lcont,lbreak,lloop,
|
|
oldclabel,oldblabel : tasmlabel;
|
|
otlabel,oflabel : tasmlabel;
|
|
|
|
begin
|
|
getlabel(lloop);
|
|
getlabel(lcont);
|
|
getlabel(lbreak);
|
|
{ arrange continue and breaklabels: }
|
|
oldclabel:=aktcontinuelabel;
|
|
oldblabel:=aktbreaklabel;
|
|
|
|
load_all_regvars(exprasmlist);
|
|
{ handling code at the end as it is much more efficient, and makes
|
|
while equal to repeat loop, only the end true/false is swapped (PFV) }
|
|
if nf_testatbegin in flags then
|
|
cg.a_jmp_always(exprasmlist,lcont);
|
|
|
|
if not(cs_littlesize in aktglobalswitches) then
|
|
{ align loop target }
|
|
exprasmList.concat(Tai_align.Create(aktalignment.loopalign));
|
|
|
|
cg.a_label(exprasmlist,lloop);
|
|
|
|
aktcontinuelabel:=lcont;
|
|
aktbreaklabel:=lbreak;
|
|
rg.cleartempgen;
|
|
if assigned(right) then
|
|
secondpass(right);
|
|
|
|
load_all_regvars(exprasmlist);
|
|
|
|
cg.a_label(exprasmlist,lcont);
|
|
otlabel:=truelabel;
|
|
oflabel:=falselabel;
|
|
if nf_checknegate in flags then
|
|
begin
|
|
truelabel:=lbreak;
|
|
falselabel:=lloop;
|
|
end
|
|
else
|
|
begin
|
|
truelabel:=lloop;
|
|
falselabel:=lbreak;
|
|
end;
|
|
rg.cleartempgen;
|
|
secondpass(left);
|
|
|
|
maketojumpbool(exprasmlist,left,lr_load_regvars);
|
|
cg.a_label(exprasmlist,lbreak);
|
|
truelabel:=otlabel;
|
|
falselabel:=oflabel;
|
|
|
|
aktcontinuelabel:=oldclabel;
|
|
aktbreaklabel:=oldblabel;
|
|
{ a break/continue in a while/repeat block can't be seen outside }
|
|
flowcontrol:=flowcontrol-[fc_break,fc_continue];
|
|
end;
|
|
|
|
|
|
{*****************************************************************************
|
|
tcgIFNODE
|
|
*****************************************************************************}
|
|
|
|
procedure tcgifnode.pass_2;
|
|
|
|
var
|
|
hl,otlabel,oflabel : tasmlabel;
|
|
org_regvar_loaded,
|
|
then_regvar_loaded,
|
|
else_regvar_loaded : regvar_booleanarray;
|
|
org_list,
|
|
then_list,
|
|
else_list : taasmoutput;
|
|
|
|
begin
|
|
otlabel:=truelabel;
|
|
oflabel:=falselabel;
|
|
getlabel(truelabel);
|
|
getlabel(falselabel);
|
|
rg.cleartempgen;
|
|
secondpass(left);
|
|
|
|
|
|
{ save regvars loaded in the beginning so that we can restore them }
|
|
{ when processing the else-block }
|
|
if cs_regalloc in aktglobalswitches then
|
|
begin
|
|
org_list := exprasmlist;
|
|
exprasmlist := taasmoutput.create;
|
|
end;
|
|
maketojumpbool(exprasmlist,left,lr_dont_load_regvars);
|
|
|
|
if cs_regalloc in aktglobalswitches then
|
|
org_regvar_loaded := rg.regvar_loaded;
|
|
|
|
if assigned(right) then
|
|
begin
|
|
cg.a_label(exprasmlist,truelabel);
|
|
rg.cleartempgen;
|
|
secondpass(right);
|
|
end;
|
|
|
|
{ save current asmlist (previous instructions + then-block) and }
|
|
{ loaded regvar state and create new clean ones }
|
|
if cs_regalloc in aktglobalswitches then
|
|
begin
|
|
then_regvar_loaded := rg.regvar_loaded;
|
|
rg.regvar_loaded := org_regvar_loaded;
|
|
then_list := exprasmlist;
|
|
exprasmlist := taasmoutput.create;
|
|
end;
|
|
|
|
if assigned(t1) then
|
|
begin
|
|
if assigned(right) then
|
|
begin
|
|
getlabel(hl);
|
|
{ do go back to if line !! }
|
|
if not(cs_regalloc in aktglobalswitches) then
|
|
aktfilepos:=exprasmList.getlasttaifilepos^
|
|
else
|
|
aktfilepos:=then_list.getlasttaifilepos^;
|
|
cg.a_jmp_always(exprasmlist,hl);
|
|
end;
|
|
cg.a_label(exprasmlist,falselabel);
|
|
rg.cleartempgen;
|
|
secondpass(t1);
|
|
{ save current asmlist (previous instructions + else-block) }
|
|
{ and loaded regvar state and create a new clean list }
|
|
if cs_regalloc in aktglobalswitches then
|
|
begin
|
|
else_regvar_loaded := rg.regvar_loaded;
|
|
else_list := exprasmlist;
|
|
exprasmlist := taasmoutput.create;
|
|
end;
|
|
if assigned(right) then
|
|
cg.a_label(exprasmlist,hl);
|
|
end
|
|
else
|
|
begin
|
|
if cs_regalloc in aktglobalswitches then
|
|
begin
|
|
else_regvar_loaded := rg.regvar_loaded;
|
|
else_list := exprasmlist;
|
|
exprasmlist := taasmoutput.create;
|
|
end;
|
|
cg.a_label(exprasmlist,falselabel);
|
|
end;
|
|
if not(assigned(right)) then
|
|
begin
|
|
cg.a_label(exprasmlist,truelabel);
|
|
end;
|
|
|
|
if cs_regalloc in aktglobalswitches then
|
|
begin
|
|
{ add loads of regvars at the end of the then- and else-blocks }
|
|
{ so that at the end of both blocks the same regvars are loaded }
|
|
|
|
{ no else block? }
|
|
if not assigned(t1) then
|
|
sync_regvars(org_list,then_list,org_regvar_loaded,
|
|
then_regvar_loaded)
|
|
{ no then block? }
|
|
else if not assigned(right) then
|
|
sync_regvars(org_list,else_list,org_regvar_loaded,
|
|
else_regvar_loaded)
|
|
{ both else and then blocks }
|
|
else
|
|
sync_regvars(then_list,else_list,then_regvar_loaded,
|
|
else_regvar_loaded);
|
|
{ add all lists together }
|
|
org_list.concatlist(then_list);
|
|
then_list.free;
|
|
org_list.concatlist(else_list);
|
|
else_list.free;
|
|
org_list.concatlist(exprasmlist);
|
|
exprasmlist.free;
|
|
exprasmlist := org_list;
|
|
end;
|
|
truelabel:=otlabel;
|
|
falselabel:=oflabel;
|
|
end;
|
|
|
|
|
|
{*****************************************************************************
|
|
SecondFor
|
|
*****************************************************************************}
|
|
|
|
procedure tcgfornode.pass_2;
|
|
var
|
|
l3,oldclabel,oldblabel : tasmlabel;
|
|
temptovalue : boolean;
|
|
hs : byte;
|
|
temp1 : treference;
|
|
hop : topcg;
|
|
hcond : topcmp;
|
|
opsize : tcgsize;
|
|
count_var_is_signed : boolean;
|
|
|
|
begin
|
|
oldclabel:=aktcontinuelabel;
|
|
oldblabel:=aktbreaklabel;
|
|
getlabel(aktcontinuelabel);
|
|
getlabel(aktbreaklabel);
|
|
getlabel(l3);
|
|
|
|
{ only calculate reference }
|
|
rg.cleartempgen;
|
|
secondpass(t2);
|
|
hs := t2.resulttype.def.size;
|
|
opsize := def_cgsize(t2.resulttype.def);
|
|
|
|
{ first set the to value
|
|
because the count var can be in the expression !! }
|
|
rg.cleartempgen;
|
|
secondpass(right);
|
|
{ calculate pointer value and check if changeable and if so }
|
|
{ load into temporary variable }
|
|
if right.nodetype<>ordconstn then
|
|
begin
|
|
temp1.symbol:=nil;
|
|
tg.gettempofsizereference(exprasmlist,hs,temp1);
|
|
temptovalue:=true;
|
|
if (right.location.loc=LOC_REGISTER) or
|
|
(right.location.loc=LOC_CREGISTER) then
|
|
begin
|
|
cg.a_load_reg_ref(exprasmlist,opsize,
|
|
right.location.register,temp1);
|
|
rg.ungetregister(exprasmlist,right.location.register);
|
|
end
|
|
else
|
|
cg.g_concatcopy(exprasmlist,right.location.reference,temp1,
|
|
hs,true,false);
|
|
end
|
|
else
|
|
temptovalue:=false;
|
|
|
|
{ produce start assignment }
|
|
rg.cleartempgen;
|
|
secondpass(left);
|
|
count_var_is_signed:=is_signed(t2.resulttype.def);
|
|
|
|
if nf_backward in flags then
|
|
if count_var_is_signed then
|
|
hcond:=OC_LT
|
|
else
|
|
hcond:=OC_B
|
|
else
|
|
if count_var_is_signed then
|
|
hcond:=OC_GT
|
|
else
|
|
hcond:=OC_A;
|
|
|
|
load_all_regvars(exprasmlist);
|
|
|
|
if temptovalue then
|
|
begin
|
|
cg.a_cmp_ref_loc_label(exprasmlist,opsize,hcond,
|
|
temp1,t2.location,aktbreaklabel);
|
|
end
|
|
else
|
|
begin
|
|
if nf_testatbegin in flags then
|
|
begin
|
|
cg.a_cmp_const_loc_label(exprasmlist,opsize,hcond,
|
|
aword(tordconstnode(right).value),
|
|
t2.location,aktbreaklabel);
|
|
end;
|
|
end;
|
|
|
|
if nf_backward in flags then
|
|
hop:=OP_ADD
|
|
else
|
|
hop:=OP_SUB;
|
|
cg.a_op_const_loc(exprasmlist,hop,1,t2.location);
|
|
|
|
if not(cs_littlesize in aktglobalswitches) then
|
|
{ align loop target }
|
|
exprasmList.concat(Tai_align.Create(aktalignment.loopalign));
|
|
cg.a_label(exprasmlist,l3);
|
|
|
|
{ according to count direction DEC or INC... }
|
|
if nf_backward in flags then
|
|
hop:=OP_SUB
|
|
else
|
|
hop:=OP_ADD;
|
|
cg.a_op_const_loc(exprasmlist,hop,1,t2.location);
|
|
|
|
{ help register must not be in instruction block }
|
|
rg.cleartempgen;
|
|
if assigned(t1) then
|
|
begin
|
|
secondpass(t1);
|
|
load_all_regvars(exprasmlist);
|
|
end;
|
|
|
|
cg.a_label(exprasmlist,aktcontinuelabel);
|
|
|
|
{ makes no problems there }
|
|
rg.cleartempgen;
|
|
|
|
if nf_backward in flags then
|
|
if count_var_is_signed then
|
|
hcond:=OC_GT
|
|
else
|
|
hcond:=OC_A
|
|
else
|
|
if count_var_is_signed then
|
|
hcond:=OC_LT
|
|
else
|
|
hcond:=OC_B;
|
|
load_all_regvars(exprasmlist);
|
|
|
|
{ produce comparison and the corresponding }
|
|
{ jump }
|
|
if temptovalue then
|
|
begin
|
|
cg.a_cmp_ref_loc_label(exprasmlist,opsize,hcond,temp1,
|
|
t2.location,l3);
|
|
end
|
|
else
|
|
begin
|
|
cg.a_cmp_const_loc_label(exprasmlist,opsize,hcond,
|
|
aword(tordconstnode(right).value),t2.location,l3);
|
|
end;
|
|
|
|
if temptovalue then
|
|
tg.ungetiftemp(exprasmlist,temp1);
|
|
|
|
{ this is the break label: }
|
|
cg.a_label(exprasmlist,aktbreaklabel);
|
|
|
|
aktcontinuelabel:=oldclabel;
|
|
aktbreaklabel:=oldblabel;
|
|
{ a break/continue in a for block can't be seen outside }
|
|
flowcontrol:=flowcontrol-[fc_break,fc_continue];
|
|
end;
|
|
|
|
|
|
{*****************************************************************************
|
|
SecondExitN
|
|
*****************************************************************************}
|
|
|
|
procedure tcgexitnode.pass_2;
|
|
|
|
var
|
|
{op : tasmop;
|
|
s : topsize;}
|
|
otlabel,oflabel : tasmlabel;
|
|
cgsize : tcgsize;
|
|
hreg : tregister;
|
|
allocated_acc,
|
|
allocated_acchigh: boolean;
|
|
label
|
|
do_jmp;
|
|
begin
|
|
{ load_all_regvars(exprasmlist); }
|
|
include(flowcontrol,fc_exit);
|
|
if assigned(left) then
|
|
if left.nodetype=assignn then
|
|
begin
|
|
{ just do a normal assignment followed by exit }
|
|
secondpass(left);
|
|
cg.a_jmp_always(exprasmlist,aktexitlabel);
|
|
end
|
|
else
|
|
begin
|
|
allocated_acc := false;
|
|
allocated_acchigh := false;
|
|
otlabel:=truelabel;
|
|
oflabel:=falselabel;
|
|
getlabel(truelabel);
|
|
getlabel(falselabel);
|
|
secondpass(left);
|
|
{ the result of left is not needed anymore after this
|
|
node }
|
|
location_freetemp(exprasmlist,left.location);
|
|
location_release(exprasmlist,left.location);
|
|
case left.location.loc of
|
|
LOC_FPUREGISTER :
|
|
goto do_jmp;
|
|
LOC_FLAGS :
|
|
begin
|
|
cg.a_reg_alloc(exprasmlist,accumulator);
|
|
allocated_acc := true;
|
|
cg.g_flags2reg(exprasmlist,left.location.resflags,accumulator);
|
|
goto do_jmp;
|
|
end;
|
|
LOC_JUMP :
|
|
begin
|
|
cg.a_reg_alloc(exprasmlist,accumulator);
|
|
{ get an 8-bit register }
|
|
hreg:=rg.makeregsize(accumulator,OS_8);
|
|
allocated_acc := true;
|
|
cg.a_label(exprasmlist,truelabel);
|
|
cg.a_load_const_reg(exprasmlist,OS_8,1,hreg);
|
|
cg.a_jmp_always(exprasmlist,aktexit2label);
|
|
cg.a_label(exprasmlist,falselabel);
|
|
cg.a_load_const_reg(exprasmlist,OS_8,0,hreg);
|
|
goto do_jmp;
|
|
end;
|
|
end;
|
|
case aktprocdef.rettype.def.deftype of
|
|
pointerdef,
|
|
procvardef :
|
|
begin
|
|
cg.a_reg_alloc(exprasmlist,accumulator);
|
|
allocated_acc := true;
|
|
cg.a_load_loc_reg(exprasmlist,left.location,accumulator);
|
|
end;
|
|
floatdef :
|
|
begin
|
|
{$ifndef i386}
|
|
cg.a_reg_alloc(exprasmlist,fpuresultreg);
|
|
{$endif not i386}
|
|
cg.a_loadfpu_loc_reg(exprasmlist,left.location,fpuresultreg);
|
|
end;
|
|
else
|
|
begin
|
|
cgsize:=def_cgsize(aktprocdef.rettype.def);
|
|
cg.a_reg_alloc(exprasmlist,accumulator);
|
|
allocated_acc := true;
|
|
case cgsize of
|
|
OS_64,OS_S64 :
|
|
begin
|
|
cg.a_reg_alloc(exprasmlist,accumulatorhigh);
|
|
allocated_acchigh := true;
|
|
cg64.a_load64_loc_reg(exprasmlist,left.location,
|
|
joinreg64(accumulator,accumulatorhigh));
|
|
end
|
|
else
|
|
begin
|
|
hreg:=rg.makeregsize(accumulator,cgsize);
|
|
cg.a_load_loc_reg(exprasmlist,left.location,hreg);
|
|
end;
|
|
end;
|
|
end;
|
|
end;
|
|
do_jmp:
|
|
truelabel:=otlabel;
|
|
falselabel:=oflabel;
|
|
cg.a_jmp_always(exprasmlist,aktexit2label);
|
|
if allocated_acc then
|
|
cg.a_reg_dealloc(exprasmlist,accumulator);
|
|
if allocated_acchigh then
|
|
cg.a_reg_dealloc(exprasmlist,accumulatorhigh);
|
|
{$ifndef i386}
|
|
if (aktprocdef.rettype.def.deftype = floatdef) then
|
|
cg.a_reg_dealloc(exprasmlist,fpuresultreg);
|
|
{$endif not i386}
|
|
end
|
|
else
|
|
cg.a_jmp_always(exprasmlist,aktexitlabel);
|
|
end;
|
|
|
|
|
|
{*****************************************************************************
|
|
SecondBreakN
|
|
*****************************************************************************}
|
|
|
|
procedure tcgbreaknode.pass_2;
|
|
begin
|
|
include(flowcontrol,fc_break);
|
|
if aktbreaklabel<>nil then
|
|
begin
|
|
load_all_regvars(exprasmlist);
|
|
cg.a_jmp_always(exprasmlist,aktbreaklabel)
|
|
end
|
|
else
|
|
CGMessage(cg_e_break_not_allowed);
|
|
end;
|
|
|
|
|
|
{*****************************************************************************
|
|
SecondContinueN
|
|
*****************************************************************************}
|
|
|
|
procedure tcgcontinuenode.pass_2;
|
|
begin
|
|
include(flowcontrol,fc_continue);
|
|
if aktcontinuelabel<>nil then
|
|
begin
|
|
load_all_regvars(exprasmlist);
|
|
cg.a_jmp_always(exprasmlist,aktcontinuelabel)
|
|
end
|
|
else
|
|
CGMessage(cg_e_continue_not_allowed);
|
|
end;
|
|
|
|
|
|
{*****************************************************************************
|
|
SecondGoto
|
|
*****************************************************************************}
|
|
|
|
procedure tcggotonode.pass_2;
|
|
|
|
begin
|
|
load_all_regvars(exprasmlist);
|
|
cg.a_jmp_always(exprasmlist,labelnr)
|
|
end;
|
|
|
|
|
|
{*****************************************************************************
|
|
SecondLabel
|
|
*****************************************************************************}
|
|
|
|
procedure tcglabelnode.pass_2;
|
|
begin
|
|
load_all_regvars(exprasmlist);
|
|
cg.a_label(exprasmlist,labelnr);
|
|
rg.cleartempgen;
|
|
secondpass(left);
|
|
end;
|
|
|
|
|
|
{*****************************************************************************
|
|
SecondFail
|
|
*****************************************************************************}
|
|
|
|
procedure tcgfailnode.pass_2;
|
|
begin
|
|
cg.a_jmp_always(exprasmlist,faillabel);
|
|
end;
|
|
|
|
|
|
|
|
|
|
begin
|
|
cwhilerepeatnode:=tcgwhilerepeatnode;
|
|
cifnode:=tcgifnode;
|
|
cfornode:=tcgfornode;
|
|
cexitnode:=tcgexitnode;
|
|
cbreaknode:=tcgbreaknode;
|
|
ccontinuenode:=tcgcontinuenode;
|
|
cgotonode:=tcggotonode;
|
|
clabelnode:=tcglabelnode;
|
|
cfailnode:=tcgfailnode;
|
|
end.
|
|
{
|
|
$Log$
|
|
Revision 1.28 2002-07-21 06:58:49 daniel
|
|
* Changed booleans into flags
|
|
|
|
Revision 1.27 2002/07/20 12:54:53 daniel
|
|
* Optimized the code generated for for nodes. The shootout/nestloop benchmark
|
|
now runs 5% faster on my computer.
|
|
|
|
Revision 1.26 2002/07/20 11:57:54 florian
|
|
* types.pas renamed to defbase.pas because D6 contains a types
|
|
unit so this would conflicts if D6 programms are compiled
|
|
+ Willamette/SSE2 instructions to assembler added
|
|
|
|
Revision 1.25 2002/07/20 11:15:51 daniel
|
|
* The for node does a check if the first comparision can be skipped. I moved
|
|
the check from the second pass to the resulttype pass. The advantage is
|
|
that the state tracker can now decide to skip the first comparision too.
|
|
|
|
Revision 1.24 2002/07/20 08:14:24 daniel
|
|
* Loops should not be aligned when optimizing for size
|
|
|
|
Revision 1.23 2002/07/19 11:41:35 daniel
|
|
* State tracker work
|
|
* The whilen and repeatn are now completely unified into whilerepeatn. This
|
|
allows the state tracker to change while nodes automatically into
|
|
repeat nodes.
|
|
* Resulttypepass improvements to the notn. 'not not a' is optimized away and
|
|
'not(a>b)' is optimized into 'a<=b'.
|
|
* Resulttypepass improvements to the whilerepeatn. 'while not a' is optimized
|
|
by removing the notn and later switchting the true and falselabels. The
|
|
same is done with 'repeat until not a'.
|
|
|
|
Revision 1.22 2002/07/04 20:43:01 florian
|
|
* first x86-64 patches
|
|
|
|
Revision 1.21 2002/07/01 18:46:22 peter
|
|
* internal linker
|
|
* reorganized aasm layer
|
|
|
|
Revision 1.20 2002/07/01 16:23:53 peter
|
|
* cg64 patch
|
|
* basics for currency
|
|
* asnode updates for class and interface (not finished)
|
|
|
|
Revision 1.19 2002/05/20 13:30:40 carl
|
|
* bugfix of hdisponen (base must be set, not index)
|
|
* more portability fixes
|
|
|
|
Revision 1.18 2002/05/18 13:34:09 peter
|
|
* readded missing revisions
|
|
|
|
Revision 1.17 2002/05/16 19:46:37 carl
|
|
+ defines.inc -> fpcdefs.inc to avoid conflicts if compiling by hand
|
|
+ try to fix temp allocation (still in ifdef)
|
|
+ generic constructor calls
|
|
+ start of tassembler / tmodulebase class cleanup
|
|
|
|
Revision 1.15 2002/05/13 19:54:37 peter
|
|
* removed n386ld and n386util units
|
|
* maybe_save/maybe_restore added instead of the old maybe_push
|
|
|
|
Revision 1.14 2002/05/12 16:53:07 peter
|
|
* moved entry and exitcode to ncgutil and cgobj
|
|
* foreach gets extra argument for passing local data to the
|
|
iterator function
|
|
* -CR checks also class typecasts at runtime by changing them
|
|
into as
|
|
* fixed compiler to cycle with the -CR option
|
|
* fixed stabs with elf writer, finally the global variables can
|
|
be watched
|
|
* removed a lot of routines from cga unit and replaced them by
|
|
calls to cgobj
|
|
* u32bit-s32bit updates for and,or,xor nodes. When one element is
|
|
u32bit then the other is typecasted also to u32bit without giving
|
|
a rangecheck warning/error.
|
|
* fixed pascal calling method with reversing also the high tree in
|
|
the parast, detected by tcalcst3 test
|
|
|
|
Revision 1.13 2002/04/21 15:24:38 carl
|
|
+ a_jmp_cond -> a_jmp_always (a_jmp_cond is NOT portable)
|
|
+ changeregsize -> rg.makeregsize
|
|
|
|
Revision 1.12 2002/04/15 19:44:19 peter
|
|
* fixed stackcheck that would be called recursively when a stack
|
|
error was found
|
|
* generic changeregsize(reg,size) for i386 register resizing
|
|
* removed some more routines from cga unit
|
|
* fixed returnvalue handling
|
|
* fixed default stacksize of linux and go32v2, 8kb was a bit small :-)
|
|
|
|
Revision 1.11 2002/04/04 19:05:57 peter
|
|
* removed unused units
|
|
* use tlocation.size in cg.a_*loc*() routines
|
|
|
|
Revision 1.10 2002/04/02 17:11:28 peter
|
|
* tlocation,treference update
|
|
* LOC_CONSTANT added for better constant handling
|
|
* secondadd splitted in multiple routines
|
|
* location_force_reg added for loading a location to a register
|
|
of a specified size
|
|
* secondassignment parses now first the right and then the left node
|
|
(this is compatible with Kylix). This saves a lot of push/pop especially
|
|
with string operations
|
|
* adapted some routines to use the new cg methods
|
|
|
|
Revision 1.9 2002/03/31 20:26:34 jonas
|
|
+ a_loadfpu_* and a_loadmm_* methods in tcg
|
|
* register allocation is now handled by a class and is mostly processor
|
|
independent (+rgobj.pas and i386/rgcpu.pas)
|
|
* temp allocation is now handled by a class (+tgobj.pas, -i386\tgcpu.pas)
|
|
* some small improvements and fixes to the optimizer
|
|
* some register allocation fixes
|
|
* some fpuvaroffset fixes in the unary minus node
|
|
* push/popusedregisters is now called rg.save/restoreusedregisters and
|
|
(for i386) uses temps instead of push/pop's when using -Op3 (that code is
|
|
also better optimizable)
|
|
* fixed and optimized register saving/restoring for new/dispose nodes
|
|
* LOC_FPU locations now also require their "register" field to be set to
|
|
R_ST, not R_ST0 (the latter is used for LOC_CFPUREGISTER locations only)
|
|
- list field removed of the tnode class because it's not used currently
|
|
and can cause hard-to-find bugs
|
|
|
|
Revision 1.8 2002/03/04 19:10:11 peter
|
|
* removed compiler warnings
|
|
|
|
}
|