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fpc/compiler/ninl.pas
peter 95f132db3d * set_varstate cleanup
2003-10-08 19:19:45 +00:00

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{
$Id$
Copyright (c) 1998-2002 by Florian Klaempfl
Type checking and register allocation for inline 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 ninl;
{$i fpcdefs.inc}
interface
uses
node,htypechk,cpuinfo,symppu;
{$i compinnr.inc}
type
tinlinenode = class(tunarynode)
inlinenumber : byte;
constructor create(number : byte;is_const:boolean;l : tnode);virtual;
constructor ppuload(t:tnodetype;ppufile:tcompilerppufile);override;
procedure ppuwrite(ppufile:tcompilerppufile);override;
function getcopy : tnode;override;
function pass_1 : tnode;override;
function det_resulttype:tnode;override;
function docompare(p: tnode): boolean; override;
{ All the following routines currently
call compilerproc's, unless they are
overriden in which case, the code
generator handles them.
}
function first_pi: tnode ; virtual;
function first_arctan_real: tnode; virtual;
function first_abs_real: tnode; virtual;
function first_sqr_real: tnode; virtual;
function first_sqrt_real: tnode; virtual;
function first_ln_real: tnode; virtual;
function first_cos_real: tnode; virtual;
function first_sin_real: tnode; virtual;
private
function handle_str: tnode;
function handle_reset_rewrite_typed: tnode;
function handle_read_write: tnode;
function handle_val: tnode;
end;
tinlinenodeclass = class of tinlinenode;
var
cinlinenode : tinlinenodeclass;
function geninlinenode(number : byte;is_const:boolean;l : tnode) : tinlinenode;
implementation
uses
verbose,globals,systems,
globtype, cutils,
symbase,symconst,symtype,symdef,symsym,symtable,paramgr,defutil,defcmp,
pass_1,
ncal,ncon,ncnv,nadd,nld,nbas,nflw,nmem,nmat,
cgbase,procinfo
;
function geninlinenode(number : byte;is_const:boolean;l : tnode) : tinlinenode;
begin
geninlinenode:=cinlinenode.create(number,is_const,l);
end;
{*****************************************************************************
TINLINENODE
*****************************************************************************}
constructor tinlinenode.create(number : byte;is_const:boolean;l : tnode);
begin
inherited create(inlinen,l);
if is_const then
include(flags,nf_inlineconst);
inlinenumber:=number;
end;
constructor tinlinenode.ppuload(t:tnodetype;ppufile:tcompilerppufile);
begin
inherited ppuload(t,ppufile);
inlinenumber:=ppufile.getbyte;
end;
procedure tinlinenode.ppuwrite(ppufile:tcompilerppufile);
begin
inherited ppuwrite(ppufile);
ppufile.putbyte(inlinenumber);
end;
function tinlinenode.getcopy : tnode;
var
n : tinlinenode;
begin
n:=tinlinenode(inherited getcopy);
n.inlinenumber:=inlinenumber;
result:=n;
end;
function tinlinenode.handle_str : tnode;
var
lenpara,
fracpara,
newparas,
dest,
source : tcallparanode;
procname: string;
is_real : boolean;
begin
result := cerrornode.create;
{ make sure we got at least two parameters (if we got only one, }
{ this parameter may not be encapsulated in a callparan) }
if not assigned(left) or
(left.nodetype <> callparan) then
begin
CGMessage(parser_e_wrong_parameter_size);
exit;
end;
{ get destination string }
dest := tcallparanode(left);
{ get source para (number) }
source := dest;
while assigned(source.right) do
source := tcallparanode(source.right);
is_real := source.resulttype.def.deftype = floatdef;
if not assigned(dest) or
((dest.left.resulttype.def.deftype<>stringdef) and
not(is_chararray(dest.left.resulttype.def))) or
not(is_real or
(source.left.resulttype.def.deftype = orddef)) then
begin
{ the parser will give this message already because we }
{ return an errornode (JM) }
{ CGMessagePos(fileinfo,cg_e_illegal_expression); }
exit;
end;
{ get len/frac parameters }
lenpara := nil;
fracpara := nil;
if (cpf_is_colon_para in tcallparanode(dest.right).callparaflags) then
begin
lenpara := tcallparanode(dest.right);
{ we can let the callnode do the type checking of these parameters too, }
{ but then the error messages aren't as nice }
if not is_integer(lenpara.resulttype.def) then
begin
CGMessagePos1(lenpara.fileinfo,
type_e_integer_expr_expected,lenpara.resulttype.def.typename);
exit;
end;
if (cpf_is_colon_para in tcallparanode(lenpara.right).callparaflags) then
begin
{ parameters are in reverse order! }
fracpara := lenpara;
lenpara := tcallparanode(lenpara.right);
if not is_real then
begin
CGMessagePos(lenpara.fileinfo,parser_e_illegal_colon_qualifier);
exit
end;
if not is_integer(lenpara.resulttype.def) then
begin
CGMessagePos1(lenpara.fileinfo,
type_e_integer_expr_expected,lenpara.resulttype.def.typename);
exit;
end;
end;
end;
{ generate the parameter list for the compilerproc }
newparas := dest;
{ if we have a float parameter, insert the realtype, len and fracpara parameters }
if is_real then
begin
{ insert realtype parameter }
newparas.right := ccallparanode.create(cordconstnode.create(
ord(tfloatdef(source.left.resulttype.def).typ),s32bittype,true),
newparas.right);
{ if necessary, insert a fraction parameter }
if not assigned(fracpara) then
begin
tcallparanode(newparas.right).right := ccallparanode.create(
cordconstnode.create(-1,s32bittype,false),
tcallparanode(newparas.right).right);
fracpara := tcallparanode(tcallparanode(newparas.right).right);
end;
{ if necessary, insert a length para }
if not assigned(lenpara) then
fracpara.right := ccallparanode.create(
cordconstnode.create(-32767,s32bittype,false),
fracpara.right);
end
else
{ for a normal parameter, insert a only length parameter if one is missing }
if not assigned(lenpara) then
newparas.right := ccallparanode.create(cordconstnode.create(-1,s32bittype,false),
newparas.right);
{ remove the parameters from the original node so they won't get disposed, }
{ since they're reused }
left := nil;
{ create procedure name }
if is_chararray(dest.resulttype.def) then
procname:='fpc_chararray_'
else
procname := 'fpc_' + tstringdef(dest.resulttype.def).stringtypname+'_';
if is_real then
procname := procname + 'float'
else
case torddef(source.resulttype.def).typ of
u32bit:
procname := procname + 'longword';
u64bit:
procname := procname + 'qword';
scurrency,
s64bit:
procname := procname + 'int64';
else
procname := procname + 'longint';
end;
{ free the errornode we generated in the beginning }
result.free;
{ create the call node, }
result := ccallnode.createintern(procname,newparas);
end;
function tinlinenode.handle_reset_rewrite_typed: tnode;
begin
{ since this is a "in_xxxx_typedfile" node, we can be sure we have }
{ a typed file as argument and we don't have to check it again (JM) }
{ add the recsize parameter }
{ note: for some reason, the parameter of intern procedures with only one }
{ parameter is gets lifted out of its original tcallparanode (see round }
{ line 1306 of ncal.pas), so recreate a tcallparanode here (JM) }
left := ccallparanode.create(cordconstnode.create(
tfiledef(left.resulttype.def).typedfiletype.def.size,s32bittype,true),
ccallparanode.create(left,nil));
{ create the correct call }
if inlinenumber=in_reset_typedfile then
result := ccallnode.createintern('fpc_reset_typed',left)
else
result := ccallnode.createintern('fpc_rewrite_typed',left);
{ make sure left doesn't get disposed, since we use it in the new call }
left := nil;
end;
function tinlinenode.handle_read_write: tnode;
const
procnames: array[boolean,boolean] of string[11] =
(('write_text_','read_text_'),('typed_write','typed_read'));
var
filepara,
lenpara,
fracpara,
nextpara,
para : tcallparanode;
newstatement : tstatementnode;
newblock : tblocknode;
p1 : tnode;
filetemp,
temp : ttempcreatenode;
procprefix,
name : string[31];
srsym : tvarsym;
tempowner : tsymtable;
restype : ^ttype;
is_typed,
do_read,
is_real,
error_para,
found_error,
is_ordinal : boolean;
begin
filepara := nil;
is_typed := false;
filetemp := nil;
do_read := inlinenumber in [in_read_x,in_readln_x];
{ if we fail, we can quickly exit this way. We must generate something }
{ instead of the inline node, because firstpass will bomb with an }
{ internalerror if it encounters a read/write }
result := cerrornode.create;
{ reverse the parameters (needed to get the colon parameters in the }
{ correct order when processing write(ln) }
left := reverseparameters(tcallparanode(left));
if assigned(left) then
begin
{ check if we have a file parameter and if yes, what kind it is }
filepara := tcallparanode(left);
if (filepara.resulttype.def.deftype=filedef) then
begin
if (tfiledef(filepara.resulttype.def).filetyp=ft_untyped) then
begin
CGMessagePos(fileinfo,type_e_no_read_write_for_untyped_file);
exit;
end
else
begin
if (tfiledef(filepara.resulttype.def).filetyp=ft_typed) then
begin
if (inlinenumber in [in_readln_x,in_writeln_x]) then
begin
CGMessagePos(fileinfo,type_e_no_readln_writeln_for_typed_file);
exit;
end;
is_typed := true;
end
end;
end
else
filepara := nil;
end;
{ create a blocknode in which the successive write/read statements will be }
{ put, since they belong together. Also create a dummy statement already to }
{ make inserting of additional statements easier }
newblock:=internalstatements(newstatement,true);
{ if we don't have a filepara, create one containing the default }
if not assigned(filepara) then
begin
{ retrieve the symbols for standard input/output handle }
if do_read then
name := 'INPUT'
else
name := 'OUTPUT';
if not searchsysvar(name,srsym,tempowner) then
internalerror(200108141);
{ since the input/output variables are threadvars loading them into
a temp once is faster. Create a temp which will hold a pointer to the file }
filetemp := ctempcreatenode.create(voidpointertype,voidpointertype.def.size,tt_persistent);
addstatement(newstatement,filetemp);
{ make sure the resulttype of the temp (and as such of the }
{ temprefs coming after it) is set (necessary because the }
{ temprefs will be part of the filepara, of which we need }
{ the resulttype later on and temprefs can only be }
{ resulttypepassed if the resulttype of the temp is known) }
resulttypepass(tnode(filetemp));
{ assign the address of the file to the temp }
addstatement(newstatement,
cassignmentnode.create(ctemprefnode.create(filetemp),
caddrnode.create(cloadnode.create(srsym,tempowner))));
{ create a new fileparameter as follows: file_type(temp^) }
{ (so that we pass the value and not the address of the temp }
{ to the read/write routine) }
filepara := ccallparanode.create(ctypeconvnode.create_explicit(
cderefnode.create(ctemprefnode.create(filetemp)),srsym.vartype),nil);
end
else
{ remove filepara from the parameter chain }
begin
left := filepara.right;
filepara.right := nil;
{ the file para is a var parameter, but it must be valid already }
set_varstate(filepara.left,vs_used,true);
{ check if we should make a temp to store the result of a complex }
{ expression (better heuristics, anyone?) (JM) }
if (filepara.left.nodetype <> loadn) then
begin
{ create a temp which will hold a pointer to the file }
filetemp := ctempcreatenode.create(voidpointertype,voidpointertype.def.size,tt_persistent);
{ add it to the statements }
addstatement(newstatement,filetemp);
{ make sure the resulttype of the temp (and as such of the }
{ temprefs coming after it) is set (necessary because the }
{ temprefs will be part of the filepara, of which we need }
{ the resulttype later on and temprefs can only be }
{ resulttypepassed if the resulttype of the temp is known) }
resulttypepass(tnode(filetemp));
{ assign the address of the file to the temp }
addstatement(newstatement,
cassignmentnode.create(ctemprefnode.create(filetemp),
caddrnode.create(filepara.left)));
resulttypepass(newstatement.left);
{ create a new fileparameter as follows: file_type(temp^) }
{ (so that we pass the value and not the address of the temp }
{ to the read/write routine) }
nextpara := ccallparanode.create(ctypeconvnode.create_explicit(
cderefnode.create(ctemprefnode.create(filetemp)),filepara.left.resulttype),nil);
{ replace the old file para with the new one }
filepara.left := nil;
filepara.free;
filepara := nextpara;
end;
end;
{ the resulttype of the filepara must be set since it's }
{ used below }
filepara.get_paratype;
{ now, filepara is nowhere referenced anymore, so we can safely dispose it }
{ if something goes wrong or at the end of the procedure }
{ choose the correct procedure prefix }
procprefix := 'fpc_'+procnames[is_typed,do_read];
{ we're going to reuse the paranodes, so make sure they don't get freed }
{ twice }
para := tcallparanode(left);
left := nil;
{ no errors found yet... }
found_error := false;
if is_typed then
begin
{ add the typesize to the filepara }
filepara.right := ccallparanode.create(cordconstnode.create(
tfiledef(filepara.resulttype.def).typedfiletype.def.size,s32bittype,true),nil);
{ check for "no parameters" (you need at least one extra para for typed files) }
if not assigned(para) then
begin
CGMessage(parser_e_wrong_parameter_size);
found_error := true;
end;
{ process all parameters }
while assigned(para) do
begin
{ check if valid parameter }
if para.left.nodetype=typen then
begin
CGMessagePos(para.left.fileinfo,type_e_cant_read_write_type);
found_error := true;
end;
{ support writeln(procvar) }
if (para.left.resulttype.def.deftype=procvardef) then
begin
p1:=ccallnode.create_procvar(nil,para.left);
resulttypepass(p1);
para.left:=p1;
end;
if not equal_defs(para.left.resulttype.def,tfiledef(filepara.resulttype.def).typedfiletype.def) then
begin
CGMessagePos(para.left.fileinfo,type_e_mismatch);
found_error := true;
end;
if assigned(para.right) and
(cpf_is_colon_para in tcallparanode(para.right).callparaflags) then
begin
CGMessagePos(para.right.fileinfo,parser_e_illegal_colon_qualifier);
{ skip all colon para's }
nextpara := tcallparanode(tcallparanode(para.right).right);
while assigned(nextpara) and
(cpf_is_colon_para in nextpara.callparaflags) do
nextpara := tcallparanode(nextpara.right);
found_error := true;
end
else
{ get next parameter }
nextpara := tcallparanode(para.right);
{ When we have a call, we have a problem: you can't pass the }
{ result of a call as a formal const parameter. Solution: }
{ assign the result to a temp and pass this temp as parameter }
{ This is not very efficient, but write(typedfile,x) is }
{ already slow by itself anyway (no buffering) (JM) }
{ Actually, thge same goes for every non-simple expression }
{ (such as an addition, ...) -> put everything but load nodes }
{ into temps (JM) }
{ of course, this must only be allowed for writes!!! (JM) }
if not(do_read) and
(para.left.nodetype <> loadn) then
begin
{ create temp for result }
temp := ctempcreatenode.create(para.left.resulttype,
para.left.resulttype.def.size,tt_persistent);
addstatement(newstatement,temp);
{ assign result to temp }
addstatement(newstatement,
cassignmentnode.create(ctemprefnode.create(temp),
para.left));
{ replace (reused) paranode with temp }
para.left := ctemprefnode.create(temp);
end;
{ add fileparameter }
para.right := filepara.getcopy;
{ create call statment }
{ since the parameters are in the correct order, we have to insert }
{ the statements always at the end of the current block }
addstatement(newstatement,ccallnode.createintern(procprefix,para));
{ if we used a temp, free it }
if para.left.nodetype = temprefn then
addstatement(newstatement,ctempdeletenode.create(temp));
{ process next parameter }
para := nextpara;
end;
{ free the file parameter }
filepara.free;
end
else
{ text read/write }
begin
while assigned(para) do
begin
{ is this parameter faulty? }
error_para := false;
{ is this parameter an ordinal? }
is_ordinal := false;
{ is this parameter a real? }
is_real:=false;
{ can't read/write types }
if para.left.nodetype=typen then
begin
CGMessagePos(para.fileinfo,type_e_cant_read_write_type);
error_para := true;
end;
{ support writeln(procvar) }
if (para.left.resulttype.def.deftype=procvardef) then
begin
p1:=ccallnode.create_procvar(nil,para.left);
resulttypepass(p1);
para.left:=p1;
end;
{ Currency will be written using the bestreal }
if is_currency(para.left.resulttype.def) then
inserttypeconv(para.left,pbestrealtype^);
case para.left.resulttype.def.deftype of
stringdef :
begin
name := procprefix+tstringdef(para.left.resulttype.def).stringtypname;
end;
pointerdef :
begin
if not is_pchar(para.left.resulttype.def) then
begin
CGMessagePos(para.fileinfo,type_e_cant_read_write_type);
error_para := true;
end
else
name := procprefix+'pchar_as_pointer';
end;
floatdef :
begin
is_real:=true;
name := procprefix+'float';
end;
orddef :
begin
is_ordinal := true;
case torddef(para.left.resulttype.def).typ of
s8bit,s16bit,s32bit :
name := procprefix+'sint';
u8bit,u16bit,u32bit :
name := procprefix+'uint';
uchar :
name := procprefix+'char';
uwidechar :
name := procprefix+'widechar';
s64bit :
name := procprefix+'int64';
u64bit :
name := procprefix+'qword';
bool8bit,
bool16bit,
bool32bit :
begin
if do_read then
begin
CGMessagePos(para.fileinfo,type_e_cant_read_write_type);
error_para := true;
end
else
name := procprefix+'boolean'
end
else
begin
CGMessagePos(para.fileinfo,type_e_cant_read_write_type);
error_para := true;
end;
end;
end;
variantdef :
name:=procprefix+'variant';
arraydef :
begin
if is_chararray(para.left.resulttype.def) then
name := procprefix+'pchar_as_array'
else
begin
CGMessagePos(para.fileinfo,type_e_cant_read_write_type);
error_para := true;
end
end
else
begin
CGMessagePos(para.fileinfo,type_e_cant_read_write_type);
error_para := true;
end
end;
{ check for length/fractional colon para's }
fracpara := nil;
lenpara := nil;
if assigned(para.right) and
(cpf_is_colon_para in tcallparanode(para.right).callparaflags) then
begin
lenpara := tcallparanode(para.right);
if assigned(lenpara.right) and
(cpf_is_colon_para in tcallparanode(lenpara.right).callparaflags) then
fracpara:=tcallparanode(lenpara.right);
end;
{ get the next parameter now already, because we're going }
{ to muck around with the pointers }
if assigned(fracpara) then
nextpara := tcallparanode(fracpara.right)
else if assigned(lenpara) then
nextpara := tcallparanode(lenpara.right)
else
nextpara := tcallparanode(para.right);
{ check if a fracpara is allowed }
if assigned(fracpara) and not is_real then
begin
CGMessagePos(fracpara.fileinfo,parser_e_illegal_colon_qualifier);
error_para := true;
end
else if assigned(lenpara) and do_read then
begin
{ I think this is already filtered out by parsing, but I'm not sure (JM) }
CGMessagePos(lenpara.fileinfo,parser_e_illegal_colon_qualifier);
error_para := true;
end;
{ adjust found_error }
found_error := found_error or error_para;
if not error_para then
begin
{ create dummy frac/len para's if necessary }
if not do_read then
begin
{ difference in default value for floats and the rest :( }
if not is_real then
begin
if not assigned(lenpara) then
lenpara := ccallparanode.create(
cordconstnode.create(0,s32bittype,false),nil)
else
{ make sure we don't pass the successive }
{ parameters too. We also already have a }
{ reference to the next parameter in }
{ nextpara }
lenpara.right := nil;
end
else
begin
if not assigned(lenpara) then
lenpara := ccallparanode.create(
cordconstnode.create(-32767,s32bittype,false),nil);
{ also create a default fracpara if necessary }
if not assigned(fracpara) then
fracpara := ccallparanode.create(
cordconstnode.create(-1,s32bittype,false),nil);
{ add it to the lenpara }
lenpara.right := fracpara;
{ and add the realtype para (this also removes the link }
{ to any parameters coming after it) }
fracpara.right := ccallparanode.create(
cordconstnode.create(ord(tfloatdef(para.left.resulttype.def).typ),
s32bittype,true),nil);
end;
end;
if do_read and
((is_ordinal and
(torddef(para.left.resulttype.def).typ in [s8bit,s16bit,u8bit,u16bit])
) or
(is_real and
not equal_defs(para.left.resulttype.def,pbestrealtype^.def)
)
) then
{ special handling of reading small numbers, because the helpers }
{ expect a longint/card/bestreal var parameter. Use a temp. can't }
{ use functions because then the call to FPC_IOCHECK destroys }
{ their result before we can store it }
begin
{ get the resulttype of the var parameter of the helper }
if is_real then
restype := pbestrealtype
else if is_signed(para.left.resulttype.def) then
restype := @s32bittype
else
restype := @u32bittype;
{ create the parameter list: the temp ... }
temp := ctempcreatenode.create(restype^,restype^.def.size,tt_persistent);
addstatement(newstatement,temp);
{ ... and the file }
p1 := ccallparanode.create(ctemprefnode.create(temp),
filepara.getcopy);
{ create the call to the helper }
addstatement(newstatement,
ccallnode.createintern(name,tcallparanode(p1)));
{ assign the result to the original var (this automatically }
{ takes care of range checking) }
addstatement(newstatement,
cassignmentnode.create(para.left,
ctemprefnode.create(temp)));
{ release the temp location }
addstatement(newstatement,ctempdeletenode.create(temp));
{ statement of para is used }
para.left := nil;
{ free the enclosing tcallparanode, but not the }
{ parameters coming after it }
para.right := nil;
para.free;
end
else
{ read of non s/u-8/16bit, or a write }
begin
{ add the filepara to the current parameter }
para.right := filepara.getcopy;
{ add the lenpara (fracpara and realtype are already linked }
{ with it if necessary) }
tcallparanode(para.right).right := lenpara;
{ create the call statement }
addstatement(newstatement,
ccallnode.createintern(name,para));
end
end
else
{ error_para = true }
begin
{ free the parameter, since it isn't referenced anywhere anymore }
para.right := nil;
para.free;
if assigned(lenpara) then
begin
lenpara.right := nil;
lenpara.free;
end;
if assigned(fracpara) then
begin
fracpara.right := nil;
fracpara.free;
end;
end;
{ process next parameter }
para := nextpara;
end;
{ if no error, add the write(ln)/read(ln) end calls }
if not found_error then
begin
case inlinenumber of
in_read_x:
name:='fpc_read_end';
in_write_x:
name:='fpc_write_end';
in_readln_x:
name:='fpc_readln_end';
in_writeln_x:
name:='fpc_writeln_end';
end;
addstatement(newstatement,ccallnode.createintern(name,filepara));
end;
end;
{ if we found an error, simply delete the generated blocknode }
if found_error then
newblock.free
else
begin
{ deallocate the temp for the file para if we used one }
if assigned(filetemp) then
addstatement(newstatement,ctempdeletenode.create(filetemp));
{ otherwise return the newly generated block of instructions, }
{ but first free the errornode we generated at the beginning }
result.free;
result := newblock
end;
end;
function tinlinenode.handle_val: tnode;
var
procname,
suffix : string[31];
sourcepara,
destpara,
codepara,
sizepara,
newparas : tcallparanode;
orgcode : tnode;
newstatement : tstatementnode;
newblock : tblocknode;
tempcode : ttempcreatenode;
begin
{ for easy exiting if something goes wrong }
result := cerrornode.create;
{ check the amount of parameters }
if not(assigned(left)) or
not(assigned(tcallparanode(left).right)) then
begin
CGMessage(parser_e_wrong_parameter_size);
exit;
end;
{ reverse parameters for easier processing }
left := reverseparameters(tcallparanode(left));
{ get the parameters }
tempcode := nil;
orgcode := nil;
sizepara := nil;
sourcepara := tcallparanode(left);
destpara := tcallparanode(sourcepara.right);
codepara := tcallparanode(destpara.right);
{ check if codepara is valid }
if assigned(codepara) and
((codepara.resulttype.def.deftype <> orddef) or
is_64bitint(codepara.resulttype.def)) then
begin
CGMessagePos(codepara.fileinfo,type_e_mismatch);
exit;
end;
{ check if dest para is valid }
if not(destpara.resulttype.def.deftype in [orddef,floatdef]) then
begin
CGMessagePos(destpara.fileinfo,type_e_integer_or_real_expr_expected);
exit;
end;
{ we're going to reuse the exisiting para's, so make sure they }
{ won't be disposed }
left := nil;
{ create the blocknode which will hold the generated statements + }
{ an initial dummy statement }
newblock:=internalstatements(newstatement,true);
{ do we need a temp for code? Yes, if no code specified, or if }
{ code is not a 32bit parameter (we already checked whether the }
{ the code para, if specified, was an orddef) }
if not assigned(codepara) or
(torddef(codepara.resulttype.def).typ in [u8bit,u16bit,s8bit,s16bit]) then
begin
tempcode := ctempcreatenode.create(s32bittype,4,tt_persistent);
addstatement(newstatement,tempcode);
{ set the resulttype of the temp (needed to be able to get }
{ the resulttype of the tempref used in the new code para) }
resulttypepass(tnode(tempcode));
{ create a temp codepara, but save the original code para to }
{ assign the result to later on }
if assigned(codepara) then
begin
orgcode := codepara.left;
codepara.left := ctemprefnode.create(tempcode);
end
else
codepara := ccallparanode.create(ctemprefnode.create(tempcode),nil);
{ we need its resulttype later on }
codepara.get_paratype;
end
else if (torddef(codepara.resulttype.def).typ = u32bit) then
{ because code is a var parameter, it must match types exactly }
{ however, since it will return values in [0..255], both longints }
{ and cardinals are fine. Since the formal code para type is }
{ longint, insert a typecoversion to longint for cardinal para's }
begin
codepara.left := ctypeconvnode.create_explicit(codepara.left,s32bittype);
{ make it explicit, oterwise you may get a nonsense range }
{ check error if the cardinal already contained a value }
{ > $7fffffff }
codepara.get_paratype;
end;
{ create the procedure name }
procname := 'fpc_val_';
case destpara.resulttype.def.deftype of
orddef:
begin
case torddef(destpara.resulttype.def).typ of
s8bit,s16bit,s32bit:
begin
suffix := 'sint_';
{ we also need a destsize para in this case }
sizepara := ccallparanode.create(cordconstnode.create
(destpara.resulttype.def.size,s32bittype,true),nil);
end;
u8bit,u16bit,u32bit:
suffix := 'uint_';
scurrency,
s64bit: suffix := 'int64_';
u64bit: suffix := 'qword_';
else
internalerror(200304225);
end;
end;
floatdef:
begin
suffix := 'real_';
end;
end;
procname := procname + suffix;
{ play a trick to have tcallnode handle invalid source parameters: }
{ the shortstring-longint val routine by default }
if (sourcepara.resulttype.def.deftype = stringdef) then
procname := procname + tstringdef(sourcepara.resulttype.def).stringtypname
else
procname := procname + 'shortstr';
{ set up the correct parameters for the call: the code para... }
newparas := codepara;
{ and the source para }
codepara.right := sourcepara;
{ sizepara either contains nil if none is needed (which is ok, since }
{ then the next statement severes any possible links with other paras }
{ that sourcepara may have) or it contains the necessary size para and }
{ its right field is nil }
sourcepara.right := sizepara;
{ create the call and assign the result to dest }
{ (val helpers are functions) }
{ the assignment will take care of rangechecking }
addstatement(newstatement,cassignmentnode.create(
destpara.left,ccallnode.createintern(procname,newparas)));
{ dispose of the enclosing paranode of the destination }
destpara.left := nil;
destpara.right := nil;
destpara.free;
{ check if we used a temp for code and whether we have to store }
{ it to the real code parameter }
if assigned(orgcode) then
addstatement(newstatement,cassignmentnode.create(
orgcode,
ctemprefnode.create(tempcode)));
{ release the temp if we allocated one }
if assigned(tempcode) then
addstatement(newstatement,ctempdeletenode.create(tempcode));
{ free the errornode }
result.free;
{ and return it }
result := newblock;
end;
{$ifdef fpc}
{$maxfpuregisters 0}
{$endif fpc}
function tinlinenode.det_resulttype:tnode;
function do_lowhigh(const t:ttype) : tnode;
var
v : tconstexprint;
enum : tenumsym;
hp : tnode;
begin
case t.def.deftype of
orddef:
begin
if inlinenumber=in_low_x then
v:=torddef(t.def).low
else
v:=torddef(t.def).high;
{ low/high of torddef are longints, so we need special }
{ handling for cardinal and 64bit types (JM) }
{ 1.0.x doesn't support int64($ffffffff) correct, it'll expand
to -1 instead of staying $ffffffff. Therefor we use $ffff with
shl twice (PFV) }
case torddef(t.def).typ of
s64bit,scurrency :
begin
if (inlinenumber=in_low_x) then
v := int64($80000000) shl 32
else
v := (int64($7fffffff) shl 32) or int64($ffff) shl 16 or int64($ffff)
end;
u64bit :
begin
{ we have to use a dirty trick for high(qword), }
{ because it's bigger than high(tconstexprint) (JM) }
v := 0
end
else
begin
if not is_signed(t.def) then
v := cardinal(v);
end;
end;
hp:=cordconstnode.create(v,t,true);
resulttypepass(hp);
{ fix high(qword) }
if (torddef(t.def).typ=u64bit) and
(inlinenumber = in_high_x) then
tordconstnode(hp).value := -1; { is the same as qword($ffffffffffffffff) }
do_lowhigh:=hp;
end;
enumdef:
begin
enum:=tenumsym(tenumdef(t.def).firstenum);
v:=tenumdef(t.def).maxval;
if inlinenumber=in_high_x then
while assigned(enum) and (enum.value <> v) do
enum:=enum.nextenum;
if not assigned(enum) then
internalerror(309993)
else
hp:=genenumnode(enum);
do_lowhigh:=hp;
end;
else
internalerror(87);
end;
end;
function getconstrealvalue : bestreal;
begin
case left.nodetype of
ordconstn:
getconstrealvalue:=tordconstnode(left).value;
realconstn:
getconstrealvalue:=trealconstnode(left).value_real;
else
internalerror(309992);
end;
end;
procedure setconstrealvalue(r : bestreal);
begin
result:=crealconstnode.create(r,pbestrealtype^);
end;
function handle_ln_const(r : bestreal) : tnode;
begin
if r<=0.0 then
if (cs_check_range in aktlocalswitches) or
(cs_check_overflow in aktlocalswitches) then
begin
result:=crealconstnode.create(0,pbestrealtype^);
CGMessage(type_e_wrong_math_argument)
end
else
begin
if r=0.0 then
result:=crealconstnode.create(double(MathQNaN),pbestrealtype^)
else
result:=crealconstnode.create(double(MathNegInf),pbestrealtype^)
end
else
result:=crealconstnode.create(ln(r),pbestrealtype^)
end;
function handle_sqrt_const(r : bestreal) : tnode;
begin
if r<0.0 then
if (cs_check_range in aktlocalswitches) or
(cs_check_overflow in aktlocalswitches) then
begin
result:=crealconstnode.create(0,pbestrealtype^);
CGMessage(type_e_wrong_math_argument)
end
else
result:=crealconstnode.create(double(MathQNaN),pbestrealtype^)
else
result:=crealconstnode.create(sqrt(r),pbestrealtype^)
end;
var
vl,vl2 : TConstExprInt;
vr : bestreal;
hightree,
hp : tnode;
srsym : tsym;
isreal : boolean;
checkrange : boolean;
label
myexit;
begin
result:=nil;
{ if we handle writeln; left contains no valid address }
if assigned(left) then
begin
if left.nodetype=callparan then
tcallparanode(left).get_paratype
else
resulttypepass(left);
end;
inc(parsing_para_level);
{ handle intern constant functions in separate case }
if nf_inlineconst in flags then
begin
{ no parameters? }
if not assigned(left) then
begin
case inlinenumber of
in_const_pi :
hp:=crealconstnode.create(pi,pbestrealtype^);
else
internalerror(89);
end;
end
else
begin
vl:=0;
vl2:=0; { second parameter Ex: ptr(vl,vl2) }
vr:=0;
isreal:=false;
case left.nodetype of
realconstn :
begin
isreal:=true;
vr:=trealconstnode(left).value_real;
end;
ordconstn :
vl:=tordconstnode(left).value;
callparan :
begin
{ both exists, else it was not generated }
vl:=tordconstnode(tcallparanode(left).left).value;
vl2:=tordconstnode(tcallparanode(tcallparanode(left).right).left).value;
end;
else
CGMessage(cg_e_illegal_expression);
end;
case inlinenumber of
in_const_trunc :
begin
if isreal then
begin
if (vr>=9223372036854775808.0) or (vr<=-9223372036854775809.0) then
begin
CGMessage(parser_e_range_check_error);
hp:=cordconstnode.create(1,cs64bittype,false)
end
else
hp:=cordconstnode.create(trunc(vr),cs64bittype,true)
end
else
hp:=cordconstnode.create(trunc(vl),cs64bittype,true);
end;
in_const_round :
begin
if isreal then
begin
if (vr>=9223372036854775807.5) or (vr<=-9223372036854775808.5) then
begin
CGMessage(parser_e_range_check_error);
hp:=cordconstnode.create(1,cs64bittype,false)
end
else
hp:=cordconstnode.create(round(vr),cs64bittype,true)
end
else
hp:=cordconstnode.create(round(vl),cs64bittype,true);
end;
in_const_frac :
begin
if isreal then
hp:=crealconstnode.create(frac(vr),pbestrealtype^)
else
hp:=crealconstnode.create(frac(vl),pbestrealtype^);
end;
in_const_int :
begin
if isreal then
hp:=crealconstnode.create(int(vr),pbestrealtype^)
else
hp:=crealconstnode.create(int(vl),pbestrealtype^);
end;
in_const_abs :
begin
if isreal then
hp:=crealconstnode.create(abs(vr),pbestrealtype^)
else
hp:=cordconstnode.create(abs(vl),left.resulttype,true);
end;
in_const_sqr :
begin
if isreal then
hp:=crealconstnode.create(sqr(vr),pbestrealtype^)
else
hp:=cordconstnode.create(sqr(vl),left.resulttype,true);
end;
in_const_odd :
begin
if isreal then
CGMessage1(type_e_integer_expr_expected,left.resulttype.def.typename)
else
hp:=cordconstnode.create(byte(odd(vl)),booltype,true);
end;
in_const_swap_word :
begin
if isreal then
CGMessage1(type_e_integer_expr_expected,left.resulttype.def.typename)
else
hp:=cordconstnode.create((vl and $ff) shl 8+(vl shr 8),left.resulttype,true);
end;
in_const_swap_long :
begin
if isreal then
CGMessage(type_e_mismatch)
else
hp:=cordconstnode.create((vl and $ffff) shl 16+(vl shr 16),left.resulttype,true);
end;
in_const_swap_qword :
begin
if isreal then
CGMessage(type_e_mismatch)
else
hp:=cordconstnode.create((vl and $ffff) shl 32+(vl shr 32),left.resulttype,true);
end;
in_const_ptr :
begin
if isreal then
CGMessage(type_e_mismatch)
else
hp:=cpointerconstnode.create((vl2 shl 4)+vl,voidfarpointertype);
end;
in_const_sqrt :
begin
if isreal then
hp:=handle_sqrt_const(vr)
else
hp:=handle_sqrt_const(vl)
end;
in_const_arctan :
begin
if isreal then
hp:=crealconstnode.create(arctan(vr),pbestrealtype^)
else
hp:=crealconstnode.create(arctan(vl),pbestrealtype^);
end;
in_const_cos :
begin
if isreal then
hp:=crealconstnode.create(cos(vr),pbestrealtype^)
else
hp:=crealconstnode.create(cos(vl),pbestrealtype^);
end;
in_const_sin :
begin
if isreal then
hp:=crealconstnode.create(sin(vr),pbestrealtype^)
else
hp:=crealconstnode.create(sin(vl),pbestrealtype^);
end;
in_const_exp :
begin
if isreal then
hp:=crealconstnode.create(exp(vr),pbestrealtype^)
else
hp:=crealconstnode.create(exp(vl),pbestrealtype^);
end;
in_const_ln :
begin
if isreal then
hp:=handle_ln_const(vr)
else
hp:=handle_ln_const(vl)
end;
else
internalerror(88);
end;
end;
if hp=nil then
hp:=tnode.create(errorn);
result:=hp;
goto myexit;
end
else
begin
case inlinenumber of
in_lo_long,
in_hi_long,
in_lo_qword,
in_hi_qword,
in_lo_word,
in_hi_word :
begin
{ give warning for incompatibility with tp and delphi }
if (inlinenumber in [in_lo_long,in_hi_long,in_lo_qword,in_hi_qword]) and
((m_tp7 in aktmodeswitches) or
(m_delphi in aktmodeswitches)) then
CGMessage(type_w_maybe_wrong_hi_lo);
{ constant folding }
if left.nodetype=ordconstn then
begin
case inlinenumber of
in_lo_word :
hp:=cordconstnode.create(tordconstnode(left).value and $ff,left.resulttype,true);
in_hi_word :
hp:=cordconstnode.create(tordconstnode(left).value shr 8,left.resulttype,true);
in_lo_long :
hp:=cordconstnode.create(tordconstnode(left).value and $ffff,left.resulttype,true);
in_hi_long :
hp:=cordconstnode.create(tordconstnode(left).value shr 16,left.resulttype,true);
in_lo_qword :
hp:=cordconstnode.create(tordconstnode(left).value and $ffffffff,left.resulttype,true);
in_hi_qword :
hp:=cordconstnode.create(tordconstnode(left).value shr 32,left.resulttype,true);
end;
result:=hp;
goto myexit;
end;
set_varstate(left,vs_used,true);
if not is_integer(left.resulttype.def) then
CGMessage(type_e_mismatch);
case inlinenumber of
in_lo_word,
in_hi_word :
resulttype:=u8bittype;
in_lo_long,
in_hi_long :
resulttype:=u16bittype;
in_lo_qword,
in_hi_qword :
resulttype:=u32bittype;
end;
end;
in_sizeof_x:
begin
set_varstate(left,vs_used,false);
if paramanager.push_high_param(vs_value,left.resulttype.def,current_procinfo.procdef.proccalloption) then
begin
hightree:=load_high_value_node(tvarsym(tloadnode(left).symtableentry));
if assigned(hightree) then
begin
hp:=caddnode.create(addn,hightree,
cordconstnode.create(1,s32bittype,false));
if (left.resulttype.def.deftype=arraydef) and
(tarraydef(left.resulttype.def).elesize<>1) then
hp:=caddnode.create(muln,hp,cordconstnode.create(tarraydef(
left.resulttype.def).elesize,s32bittype,true));
result:=hp;
end;
end
else
resulttype:=s32bittype;
end;
in_typeof_x:
begin
set_varstate(left,vs_used,false);
resulttype:=voidpointertype;
end;
in_ord_x:
begin
if (left.nodetype=ordconstn) then
begin
hp:=cordconstnode.create(
tordconstnode(left).value,s32bittype,true);
result:=hp;
goto myexit;
end;
set_varstate(left,vs_used,true);
case left.resulttype.def.deftype of
orddef :
begin
case torddef(left.resulttype.def).typ of
bool8bit,
uchar:
begin
{ change to byte() }
hp:=ctypeconvnode.create_explicit(left,u8bittype);
left:=nil;
result:=hp;
end;
bool16bit,
uwidechar :
begin
{ change to word() }
hp:=ctypeconvnode.create_explicit(left,u16bittype);
left:=nil;
result:=hp;
end;
bool32bit :
begin
{ change to dword() }
hp:=ctypeconvnode.create_explicit(left,u32bittype);
left:=nil;
result:=hp;
end;
uvoid :
CGMessage(type_e_mismatch)
else
begin
{ all other orddef need no transformation }
hp:=left;
left:=nil;
result:=hp;
end;
end;
end;
enumdef :
begin
hp:=ctypeconvnode.create_explicit(left,s32bittype);
left:=nil;
result:=hp;
end;
else
CGMessage(type_e_mismatch);
end;
end;
in_chr_byte:
begin
{ convert to explicit char() }
set_varstate(left,vs_used,true);
hp:=ctypeconvnode.create_explicit(left,cchartype);
left:=nil;
result:=hp;
end;
in_length_x:
begin
set_varstate(left,vs_used,true);
case left.resulttype.def.deftype of
stringdef :
begin
{ we don't need string convertions here }
if (left.nodetype=typeconvn) and
(ttypeconvnode(left).left.resulttype.def.deftype=stringdef) then
begin
hp:=ttypeconvnode(left).left;
ttypeconvnode(left).left:=nil;
left.free;
left:=hp;
end;
{ evaluates length of constant strings direct }
if (left.nodetype=stringconstn) then
begin
hp:=cordconstnode.create(
tstringconstnode(left).len,s32bittype,true);
result:=hp;
goto myexit;
end;
end;
orddef :
begin
{ length of char is one allways }
if is_char(left.resulttype.def) or
is_widechar(left.resulttype.def) then
begin
hp:=cordconstnode.create(1,s32bittype,false);
result:=hp;
goto myexit;
end
else
CGMessage(type_e_mismatch);
end;
pointerdef :
begin
if is_pchar(left.resulttype.def) then
begin
hp := ccallparanode.create(left,nil);
result := ccallnode.createintern('fpc_pchar_length',hp);
{ make sure the left node doesn't get disposed, since it's }
{ reused in the new node (JM) }
left:=nil;
goto myexit;
end
else if is_pwidechar(left.resulttype.def) then
begin
hp := ccallparanode.create(left,nil);
result := ccallnode.createintern('fpc_pwidechar_length',hp);
{ make sure the left node doesn't get disposed, since it's }
{ reused in the new node (JM) }
left:=nil;
goto myexit;
end
else
CGMessage(type_e_mismatch);
end;
arraydef :
begin
if is_open_array(left.resulttype.def) or
is_array_of_const(left.resulttype.def) then
begin
hightree:=load_high_value_node(tvarsym(tloadnode(left).symtableentry));
if assigned(hightree) then
begin
hp:=caddnode.create(addn,hightree,
cordconstnode.create(1,s32bittype,false));
result:=hp;
end;
goto myexit;
end
else
if not is_dynamic_array(left.resulttype.def) then
begin
hp:=cordconstnode.create(tarraydef(left.resulttype.def).highrange-
tarraydef(left.resulttype.def).lowrange+1,
s32bittype,true);
result:=hp;
goto myexit;
end
else
begin
hp := ccallparanode.create(ctypeconvnode.create_explicit(left,voidpointertype),nil);
result := ccallnode.createintern('fpc_dynarray_length',hp);
{ make sure the left node doesn't get disposed, since it's }
{ reused in the new node (JM) }
left:=nil;
goto myexit;
end;
end;
else
CGMessage(type_e_mismatch);
end;
{ shortstring return an 8 bit value as the length
is the first byte of the string }
if is_shortstring(left.resulttype.def) then
resulttype:=u8bittype
else
resulttype:=s32bittype;
end;
in_typeinfo_x:
begin
set_varstate(left,vs_used,true);
resulttype:=voidpointertype;
end;
in_assigned_x:
begin
result := caddnode.create(unequaln,tcallparanode(left).left,cnilnode.create);
tcallparanode(left).left := nil;
{ free left, because otherwise some code at 'myexit' tries }
{ to run get_paratype for it, which crashes since left.left }
{ is now nil }
left.free;
left := nil;
goto myexit;
end;
in_ofs_x :
internalerror(2000101001);
in_seg_x :
begin
set_varstate(left,vs_used,false);
hp:=cordconstnode.create(0,s32bittype,false);
result:=hp;
goto myexit;
end;
in_pred_x,
in_succ_x:
begin
set_varstate(left,vs_used,true);
resulttype:=left.resulttype;
if not is_ordinal(resulttype.def) then
CGMessage(type_e_ordinal_expr_expected)
else
begin
if (resulttype.def.deftype=enumdef) and
(tenumdef(resulttype.def).has_jumps) then
CGMessage(type_e_succ_and_pred_enums_with_assign_not_possible);
end;
{ only if the result is an enum do we do range checking }
if (resulttype.def.deftype=enumdef) then
checkrange := true
else
checkrange := false;
{ do constant folding after check for jumps }
if left.nodetype=ordconstn then
begin
if inlinenumber=in_succ_x then
hp:=cordconstnode.create(tordconstnode(left).value+1,left.resulttype,checkrange)
else
hp:=cordconstnode.create(tordconstnode(left).value-1,left.resulttype,checkrange);
result:=hp;
end;
end;
in_finalize_x,
in_setlength_x:
begin
{ inlined from pinline }
internalerror(200204231);
end;
in_inc_x,
in_dec_x:
begin
resulttype:=voidtype;
if assigned(left) then
begin
{ first param must be var }
valid_for_var(tcallparanode(left).left);
set_varstate(tcallparanode(left).left,vs_used,true);
if (left.resulttype.def.deftype in [enumdef,pointerdef]) or
is_ordinal(left.resulttype.def) or
is_currency(left.resulttype.def) then
begin
{ value of left gets changed -> must be unique }
set_unique(tcallparanode(left).left);
{ two paras ? }
if assigned(tcallparanode(left).right) then
begin
set_varstate(tcallparanode(tcallparanode(left).right).left,vs_used,true);
if (aktlocalswitches *
[cs_check_overflow,cs_check_range] = []) then
begin
{ insert a type conversion }
{ the second param is always longint }
if is_currency(left.resulttype.def) then
inserttypeconv(tcallparanode(tcallparanode(left).right).left,s64currencytype)
else
if is_64bitint(left.resulttype.def) then
if is_signed(left.resulttype.def) then
inserttypeconv(tcallparanode(tcallparanode(left).right).left,cs64bittype)
else
inserttypeconv(tcallparanode(tcallparanode(left).right).left,cu64bittype)
else
if is_signed(left.resulttype.def) then
inserttypeconv(tcallparanode(tcallparanode(left).right).left,s32bittype)
else
inserttypeconv(tcallparanode(tcallparanode(left).right).left,u32bittype);
end;
if assigned(tcallparanode(tcallparanode(left).right).right) then
CGMessage(cg_e_illegal_expression);
end;
end
else
CGMessage(type_e_ordinal_expr_expected);
end
else
CGMessage(type_e_mismatch);
end;
in_read_x,
in_readln_x,
in_write_x,
in_writeln_x :
begin
result := handle_read_write;
end;
in_settextbuf_file_x :
begin
resulttype:=voidtype;
{ now we know the type of buffer }
srsym:=searchsymonlyin(systemunit,'SETTEXTBUF');
hp:=ccallparanode.create(cordconstnode.create(
tcallparanode(left).left.resulttype.def.size,s32bittype,true),left);
hp:=ccallnode.create(hp,tprocsym(srsym),systemunit,nil);
left:=nil;
result:=hp;
end;
{ the firstpass of the arg has been done in firstcalln ? }
in_reset_typedfile,
in_rewrite_typedfile :
begin
result := handle_reset_rewrite_typed;
end;
in_str_x_string :
begin
result := handle_str;
end;
in_val_x :
begin
result := handle_val;
end;
in_include_x_y,
in_exclude_x_y:
begin
resulttype:=voidtype;
{ the parser already checks whether we have two (and exectly two) }
{ parameters (JM) }
{ first param must be var }
valid_for_var(tcallparanode(left).left);
set_varstate(tcallparanode(left).left,vs_used,true);
{ check type }
if (left.resulttype.def.deftype=setdef) then
begin
{ insert a type conversion }
{ to the type of the set elements }
set_varstate(tcallparanode(tcallparanode(left).right).left,vs_used,true);
inserttypeconv(tcallparanode(tcallparanode(left).right).left,
tsetdef(left.resulttype.def).elementtype);
end
else
CGMessage(type_e_mismatch);
end;
in_low_x,
in_high_x:
begin
set_varstate(left,vs_used,false);
case left.resulttype.def.deftype of
orddef,
enumdef:
begin
result:=do_lowhigh(left.resulttype);
end;
setdef:
begin
result:=do_lowhigh(tsetdef(left.resulttype.def).elementtype);
end;
arraydef:
begin
if inlinenumber=in_low_x then
begin
result:=cordconstnode.create(tarraydef(
left.resulttype.def).lowrange,tarraydef(left.resulttype.def).rangetype,true);
end
else
begin
if is_open_array(left.resulttype.def) or
is_array_of_const(left.resulttype.def) then
begin
result:=load_high_value_node(tvarsym(tloadnode(left).symtableentry));
end
else
if is_dynamic_array(left.resulttype.def) then
begin
{ can't use inserttypeconv because we need }
{ an explicit type conversion (JM) }
hp := ccallparanode.create(ctypeconvnode.create_explicit(left,voidpointertype),nil);
result := ccallnode.createintern('fpc_dynarray_high',hp);
{ make sure the left node doesn't get disposed, since it's }
{ reused in the new node (JM) }
left:=nil;
end
else
begin
result:=cordconstnode.create(tarraydef(
left.resulttype.def).highrange,tarraydef(left.resulttype.def).rangetype,true);
end;
end;
end;
stringdef:
begin
if inlinenumber=in_low_x then
begin
result:=cordconstnode.create(0,u8bittype,false);
end
else
begin
if is_open_string(left.resulttype.def) then
result:=load_high_value_node(tvarsym(tloadnode(left).symtableentry))
else
result:=cordconstnode.create(tstringdef(left.resulttype.def).len,u8bittype,true);
end;
end;
else
CGMessage(type_e_mismatch);
end;
end;
in_pi:
begin
if block_type=bt_const then
setconstrealvalue(pi)
else
resulttype:=pbestrealtype^;
end;
in_cos_extended :
begin
if left.nodetype in [ordconstn,realconstn] then
setconstrealvalue(cos(getconstrealvalue))
else
begin
set_varstate(left,vs_used,true);
inserttypeconv(left,pbestrealtype^);
resulttype:=pbestrealtype^;
end;
end;
in_sin_extended :
begin
if left.nodetype in [ordconstn,realconstn] then
setconstrealvalue(sin(getconstrealvalue))
else
begin
set_varstate(left,vs_used,true);
inserttypeconv(left,pbestrealtype^);
resulttype:=pbestrealtype^;
end;
end;
in_arctan_extended :
begin
if left.nodetype in [ordconstn,realconstn] then
setconstrealvalue(arctan(getconstrealvalue))
else
begin
set_varstate(left,vs_used,true);
inserttypeconv(left,pbestrealtype^);
resulttype:=pbestrealtype^;
end;
end;
in_abs_extended :
begin
if left.nodetype in [ordconstn,realconstn] then
setconstrealvalue(abs(getconstrealvalue))
else
begin
set_varstate(left,vs_used,true);
inserttypeconv(left,pbestrealtype^);
resulttype:=pbestrealtype^;
end;
end;
in_sqr_extended :
begin
if left.nodetype in [ordconstn,realconstn] then
setconstrealvalue(sqr(getconstrealvalue))
else
begin
set_varstate(left,vs_used,true);
inserttypeconv(left,pbestrealtype^);
resulttype:=pbestrealtype^;
end;
end;
in_sqrt_extended :
begin
if left.nodetype in [ordconstn,realconstn] then
begin
vr:=getconstrealvalue;
if vr<0.0 then
result:=handle_sqrt_const(vr)
else
setconstrealvalue(sqrt(vr));
end
else
begin
set_varstate(left,vs_used,true);
inserttypeconv(left,pbestrealtype^);
resulttype:=pbestrealtype^;
end;
end;
in_ln_extended :
begin
if left.nodetype in [ordconstn,realconstn] then
begin
vr:=getconstrealvalue;
if vr<=0.0 then
result:=handle_ln_const(vr)
else
setconstrealvalue(ln(vr));
end
else
begin
set_varstate(left,vs_used,true);
inserttypeconv(left,pbestrealtype^);
resulttype:=pbestrealtype^;
end;
end;
{$ifdef SUPPORT_MMX}
in_mmx_pcmpeqb..in_mmx_pcmpgtw:
begin
end;
{$endif SUPPORT_MMX}
in_assert_x_y :
begin
resulttype:=voidtype;
if assigned(left) then
begin
set_varstate(tcallparanode(left).left,vs_used,true);
{ check type }
if is_boolean(left.resulttype.def) then
begin
set_varstate(tcallparanode(tcallparanode(left).right).left,vs_used,true);
{ must always be a string }
inserttypeconv(tcallparanode(tcallparanode(left).right).left,cshortstringtype);
end
else
CGMessage(type_e_mismatch);
end
else
CGMessage(type_e_mismatch);
{ We've checked the whole statement for correctness, now we
can remove it if assertions are off }
if not(cs_do_assertion in aktlocalswitches) then
begin
{ we need a valid node, so insert a nothingn }
result:=cnothingnode.create;
end;
end;
else
internalerror(8);
end;
end;
myexit:
{ Run get_paratype again to update maybe inserted typeconvs }
if not codegenerror then
begin
if assigned(left) and
(left.nodetype=callparan) then
tcallparanode(left).get_paratype;
end;
dec(parsing_para_level);
end;
function tinlinenode.pass_1 : tnode;
var
hp,hpp : tnode;
shiftconst: longint;
begin
result:=nil;
{ if we handle writeln; left contains no valid address }
if assigned(left) then
begin
if left.nodetype=callparan then
tcallparanode(left).firstcallparan(false)
else
firstpass(left);
left_max;
end;
inc(parsing_para_level);
{ intern const should already be handled }
if nf_inlineconst in flags then
internalerror(200104044);
case inlinenumber of
in_lo_qword,
in_hi_qword,
in_lo_long,
in_hi_long,
in_lo_word,
in_hi_word:
begin
shiftconst := 0;
case inlinenumber of
in_hi_qword:
shiftconst := 32;
in_hi_long:
shiftconst := 16;
in_hi_word:
shiftconst := 8;
end;
if shiftconst <> 0 then
result := ctypeconvnode.create_explicit(cshlshrnode.create(shrn,left,
cordconstnode.create(shiftconst,u32bittype,false)),resulttype)
else
result := ctypeconvnode.create_explicit(left,resulttype);
left := nil;
firstpass(result);
end;
in_sizeof_x:
begin
if registers32<1 then
registers32:=1;
expectloc:=LOC_REGISTER;
end;
in_typeof_x:
begin
if registers32<1 then
registers32:=1;
expectloc:=LOC_REGISTER;
end;
in_length_x:
begin
if is_shortstring(left.resulttype.def) then
expectloc:=left.expectloc
else
begin
{ ansi/wide string }
if registers32<1 then
registers32:=1;
expectloc:=LOC_REGISTER;
end;
end;
in_typeinfo_x:
begin
expectloc:=LOC_REGISTER;
registers32:=1;
end;
in_assigned_x:
begin
{ should be removed in resulttype pass }
internalerror(2002080201);
end;
in_pred_x,
in_succ_x:
begin
if is_64bit(resulttype.def) then
begin
if (registers32<2) then
registers32:=2
end
else
begin
if (registers32<1) then
registers32:=1;
end;
expectloc:=LOC_REGISTER;
end;
in_setlength_x:
begin
expectloc:=LOC_VOID;
end;
in_finalize_x:
begin
expectloc:=LOC_VOID;
end;
in_inc_x,
in_dec_x:
begin
expectloc:=LOC_VOID;
{ check type }
if is_64bit(left.resulttype.def) or
{ range/overflow checking doesn't work properly }
{ with the inc/dec code that's generated (JM) }
((left.resulttype.def.deftype = orddef) and
not(is_char(left.resulttype.def)) and
not(is_boolean(left.resulttype.def)) and
(aktlocalswitches *
[cs_check_overflow,cs_check_range] <> [])) then
{ convert to simple add (JM) }
begin
{ extra parameter? }
if assigned(tcallparanode(left).right) then
begin
{ Yes, use for add node }
hpp := tcallparanode(tcallparanode(left).right).left;
tcallparanode(tcallparanode(left).right).left := nil;
if assigned(tcallparanode(tcallparanode(left).right).right) then
CGMessage(cg_e_illegal_expression);
end
else
{ no, create constant 1 }
hpp := cordconstnode.create(1,s32bittype,false);
{ addition/substraction depending on inc/dec }
if inlinenumber = in_inc_x then
hp := caddnode.create(addn,tcallparanode(left).left.getcopy,hpp)
else
hp := caddnode.create(subn,tcallparanode(left).left.getcopy,hpp);
{ assign result of addition }
hpp := cassignmentnode.create(tcallparanode(left).left,hp);
tcallparanode(left).left := nil;
{ firstpass it }
firstpass(hpp);
{ return new node }
result := hpp;
end
else if (left.resulttype.def.deftype in [enumdef,pointerdef]) or
is_ordinal(left.resulttype.def) then
begin
{ two paras ? }
if assigned(tcallparanode(left).right) then
begin
{ need we an additional register ? }
if not(is_constintnode(tcallparanode(tcallparanode(left).right).left)) and
(tcallparanode(tcallparanode(left).right).left.expectloc in [LOC_CREFERENCE,LOC_REFERENCE]) and
(tcallparanode(tcallparanode(left).right).left.registers32<=1) then
inc(registers32);
{ do we need an additional register to restore the first parameter? }
if tcallparanode(tcallparanode(left).right).left.registers32>=registers32 then
inc(registers32);
end;
end;
end;
in_include_x_y,
in_exclude_x_y:
begin
expectloc:=LOC_VOID;
registers32:=left.registers32;
registersfpu:=left.registersfpu;
{$ifdef SUPPORT_MMX}
registersmmx:=left.registersmmx;
{$endif SUPPORT_MMX}
end;
in_cos_extended:
begin
result:= first_cos_real;
end;
in_sin_extended:
begin
result := first_sin_real;
end;
in_arctan_extended:
begin
result := first_arctan_real;
end;
in_pi:
begin
result := first_pi;
end;
in_abs_extended:
begin
result := first_abs_real;
end;
in_sqr_extended:
begin
result := first_sqr_real;
end;
in_sqrt_extended:
begin
result := first_sqrt_real;
end;
in_ln_extended:
begin
result := first_ln_real;
end;
{$ifdef SUPPORT_MMX}
in_mmx_pcmpeqb..in_mmx_pcmpgtw:
begin
end;
{$endif SUPPORT_MMX}
in_assert_x_y :
begin
expectloc:=LOC_VOID;
registers32:=left.registers32;
registersfpu:=left.registersfpu;
{$ifdef SUPPORT_MMX}
registersmmx:=left.registersmmx;
{$endif SUPPORT_MMX}
end;
in_low_x,
in_high_x:
internalerror(200104047);
in_ord_x,
in_chr_byte:
begin
{ should not happend as it's converted to typeconv }
internalerror(200104045);
end;
in_ofs_x :
internalerror(2000101001);
in_seg_x :
internalerror(200104046);
in_settextbuf_file_x,
in_reset_typedfile,
in_rewrite_typedfile,
in_str_x_string,
in_val_x,
in_read_x,
in_readln_x,
in_write_x,
in_writeln_x :
begin
{ should be handled by det_resulttype }
internalerror(200108234);
end;
else
internalerror(8);
end;
dec(parsing_para_level);
end;
{$ifdef fpc}
{$maxfpuregisters default}
{$endif fpc}
function tinlinenode.docompare(p: tnode): boolean;
begin
docompare :=
inherited docompare(p) and
(inlinenumber = tinlinenode(p).inlinenumber);
end;
function tinlinenode.first_pi : tnode;
begin
result := crealconstnode.create(pi,pbestrealtype^);
end;
function tinlinenode.first_arctan_real : tnode;
begin
{ create the call to the helper }
{ on entry left node contains the parameter }
first_arctan_real := ccallnode.createintern('fpc_arctan_real',
ccallparanode.create(left,nil));
left := nil;
end;
function tinlinenode.first_abs_real : tnode;
begin
{ create the call to the helper }
{ on entry left node contains the parameter }
first_abs_real := ccallnode.createintern('fpc_abs_real',
ccallparanode.create(left,nil));
left := nil;
end;
function tinlinenode.first_sqr_real : tnode;
begin
{ create the call to the helper }
{ on entry left node contains the parameter }
first_sqr_real := ccallnode.createintern('fpc_sqr_real',
ccallparanode.create(left,nil));
left := nil;
end;
function tinlinenode.first_sqrt_real : tnode;
begin
{ create the call to the helper }
{ on entry left node contains the parameter }
first_sqrt_real := ccallnode.createintern('fpc_sqrt_real',
ccallparanode.create(left,nil));
left := nil;
end;
function tinlinenode.first_ln_real : tnode;
begin
{ create the call to the helper }
{ on entry left node contains the parameter }
first_ln_real := ccallnode.createintern('fpc_ln_real',
ccallparanode.create(left,nil));
left := nil;
end;
function tinlinenode.first_cos_real : tnode;
begin
{ create the call to the helper }
{ on entry left node contains the parameter }
first_cos_real := ccallnode.createintern('fpc_cos_real',
ccallparanode.create(left,nil));
left := nil;
end;
function tinlinenode.first_sin_real : tnode;
begin
{ create the call to the helper }
{ on entry left node contains the parameter }
first_sin_real := ccallnode.createintern('fpc_sin_real',
ccallparanode.create(left,nil));
left := nil;
end;
begin
cinlinenode:=tinlinenode;
end.
{
$Log$
Revision 1.120 2003-10-08 19:19:45 peter
* set_varstate cleanup
Revision 1.119 2003/10/01 20:34:48 peter
* procinfo unit contains tprocinfo
* cginfo renamed to cgbase
* moved cgmessage to verbose
* fixed ppc and sparc compiles
Revision 1.118 2003/09/23 21:10:11 peter
* don't call firstpass in resulttypepass
Revision 1.117 2003/09/23 17:56:05 peter
* locals and paras are allocated in the code generation
* tvarsym.localloc contains the location of para/local when
generating code for the current procedure
Revision 1.116 2003/09/16 16:17:01 peter
* varspez in calls to push_addr_param
Revision 1.115 2003/09/06 16:47:24 florian
+ support of NaN and Inf in the compiler as values of real constants
Revision 1.114 2003/06/13 21:19:30 peter
* current_procdef removed, use current_procinfo.procdef instead
Revision 1.113 2003/05/31 21:29:04 jonas
* constant evaluation of trunc() and round() now also gives 64 bit
results
Revision 1.112 2003/05/17 13:30:08 jonas
* changed tt_persistant to tt_persistent :)
* tempcreatenode now doesn't accept a boolean anymore for persistent
temps, but a ttemptype, so you can also create ansistring temps etc
Revision 1.111 2003/05/11 21:37:03 peter
* moved implicit exception frame from ncgutil to psub
* constructor/destructor helpers moved from cobj/ncgutil to psub
Revision 1.110 2003/05/09 17:47:02 peter
* self moved to hidden parameter
* removed hdisposen,hnewn,selfn
Revision 1.109 2003/04/27 11:21:33 peter
* aktprocdef renamed to current_procinfo.procdef
* procinfo renamed to current_procinfo
* procinfo will now be stored in current_module so it can be
cleaned up properly
* gen_main_procsym changed to create_main_proc and release_main_proc
to also generate a tprocinfo structure
* fixed unit implicit initfinal
Revision 1.108 2002/04/25 20:15:39 florian
* block nodes within expressions shouldn't release the used registers,
fixed using a flag till the new rg is ready
Revision 1.107 2003/04/23 20:16:04 peter
+ added currency support based on int64
+ is_64bit for use in cg units instead of is_64bitint
* removed cgmessage from n386add, replace with internalerrors
Revision 1.106 2003/04/22 23:50:23 peter
* firstpass uses expectloc
* checks if there are differences between the expectloc and
location.loc from secondpass in EXTDEBUG
Revision 1.105 2002/12/30 12:54:45 jonas
* don't allow erroneuos read(typedfile,...) statements
Revision 1.104 2002/12/30 12:48:07 jonas
* fixed web bug 2296
Revision 1.103 2002/12/17 22:19:33 peter
* fixed pushing of records>8 bytes with stdcall
* simplified hightree loading
Revision 1.102 2002/12/15 21:30:12 florian
* tcallnode.paraitem introduced, all references to defcoll removed
Revision 1.101 2002/11/27 20:04:39 peter
* cdecl array of const fixes
Revision 1.100 2002/11/27 15:33:47 peter
* the never ending story of tp procvar hacks
Revision 1.99 2002/11/27 02:37:13 peter
* case statement inlining added
* fixed inlining of write()
* switched statementnode left and right parts so the statements are
processed in the correct order when getcopy is used. This is
required for tempnodes
Revision 1.98 2002/11/25 17:43:19 peter
* splitted defbase in defutil,symutil,defcmp
* merged isconvertable and is_equal into compare_defs(_ext)
* made operator search faster by walking the list only once
Revision 1.97 2002/11/18 18:35:01 peter
* Swap(QWord) constant support
Revision 1.96 2002/11/18 17:31:57 peter
* pass proccalloption to ret_in_xxx and push_xxx functions
Revision 1.95 2002/11/16 17:59:31 peter
* load threadvar input/output variable in temp
Revision 1.94 2002/11/15 01:58:52 peter
* merged changes from 1.0.7 up to 04-11
- -V option for generating bug report tracing
- more tracing for option parsing
- errors for cdecl and high()
- win32 import stabs
- win32 records<=8 are returned in eax:edx (turned off by default)
- heaptrc update
- more info for temp management in .s file with EXTDEBUG
Revision 1.93 2002/10/10 19:24:58 florian
+ write(ln) support for variants added
Revision 1.92 2002/10/10 16:07:57 florian
+ several widestring/pwidechar related stuff added
Revision 1.91 2002/10/05 14:21:08 peter
* Length(PChar) supported
Revision 1.90 2002/09/13 19:12:09 carl
* only enumerations have range checking for succ/pred in const section
Revision 1.89 2002/09/09 19:41:01 peter
* check ranges for pred() and succ()
Revision 1.88 2002/09/08 13:01:25 jonas
* first_pi now just generates a constant, added missing calls to firstpass()
Revision 1.87 2002/09/07 20:42:16 carl
* cardinal -> longword
Revision 1.86 2002/09/07 12:16:04 carl
* second part bug report 1996 fix, testrange in cordconstnode
only called if option is set (also make parsing a tiny faster)
Revision 1.85 2002/09/02 19:24:42 peter
* array of char support for Str()
Revision 1.84 2002/08/19 19:36:43 peter
* More fixes for cross unit inlining, all tnodes are now implemented
* Moved pocall_internconst to po_internconst because it is not a
calling type at all and it conflicted when inlining of these small
functions was requested
Revision 1.83 2002/08/02 07:44:31 jonas
* made assigned() handling generic
* add nodes now can also evaluate constant expressions at compile time
that contain nil nodes
Revision 1.82 2002/07/29 21:23:43 florian
* more fixes for the ppc
+ wrappers for the tcnvnode.first_* stuff introduced
Revision 1.81 2002/07/26 12:28:50 jonas
* don't always convert the second argument of inc/dec to a longint, but
to a type based on the first argument
Revision 1.80 2002/07/25 18:00:19 carl
+ Resulttype for floats is now CPU independent (bestrealytype)
+ Generic version of some routines (call to RTL routines)
: still untested.
Revision 1.79 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 1.78 2002/07/11 14:41:28 florian
* start of the new generic parameter handling
Revision 1.77 2002/06/06 18:53:53 jonas
* fixed fpu stack overflow in compiler when compiled with -Or
Revision 1.76 2002/05/18 13:34:10 peter
* readded missing revisions
Revision 1.75 2002/05/16 19:46:38 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 1.73 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 1.72 2002/04/23 19:16:34 peter
* add pinline unit that inserts compiler supported functions using
one or more statements
* moved finalize and setlength from ninl to pinline
Revision 1.71 2002/04/02 17:11:29 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 1.70 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 1.69 2002/01/24 18:25:48 peter
* implicit result variable generation for assembler routines
* removed m_tp modeswitch, use m_tp7 or not(m_fpc) instead
Revision 1.68 2002/01/19 11:53:56 peter
* constant evaluation for assinged added
}
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