1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
|
{
Copyright (c) 2016 by Jonas Maebe
Generate assembler for nodes that influence the flow
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 ncgnstfl;
{$i fpcdefs.inc}
interface
uses
node,
nflw, ncgflw;
type
tcgnestgotonode = class(tcggotonode)
function pass_typecheck: tnode; override;
end;
implementation
uses
globtype,globals,
nld,
symdef,symsym,symcreat;
function tcgnestgotonode.pass_typecheck: tnode;
begin
result:=inherited;
if (m_non_local_goto in current_settings.modeswitches) and
assigned(labelsym) and
assigned(labelsym.jumpbuf) then
begin
{ we will access this jumpbuf local variable from a nested context,
but the loadnode to do so only gets created in pass_1. This is too
late for us to detect that it should have been added to the
parentfpstruct, so temporarily create and typecheckpass a load
node for the jumpbuf here (so that it can be added now) }
with cloadnode.create(labelsym.jumpbuf,labelsym.jumpbuf.Owner) do
begin
pass_typecheck;
free
end;
end;
end;
begin
cgotonode:=tcgnestgotonode;
end.
|
