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
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
|
{
Copyright (c) 1998-2002 by Florian Klaempfl
Code generation for const nodes on the Risc-V
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 nrvcon;
{$i fpcdefs.inc}
interface
uses
ncgcon,cpubase;
type
trvrealconstnode = class(tcgrealconstnode)
procedure pass_generate_code;override;
end;
implementation
uses
verbose,
globtype,globals,
cpuinfo,
aasmbase,aasmtai,aasmdata,symdef,
defutil,
cgbase,cgutils,
procinfo,
ncon;
{*****************************************************************************
TARMREALCONSTNODE
*****************************************************************************}
procedure trvrealconstnode.pass_generate_code;
{ I suppose the parser/pass_1 must make sure the generated real }
{ constants are actually supported by the target processor? (JM) }
const
floattype2ait:array[tfloattype] of tairealconsttype=
(aitrealconst_s32bit,aitrealconst_s64bit,aitrealconst_s80bit,aitrealconst_s80bit,aitrealconst_s64comp,aitrealconst_s64comp,aitrealconst_s128bit);
var
lastlabel : tasmlabel;
realait : tairealconsttype;
begin
location_reset_ref(location,LOC_CREFERENCE,def_cgsize(resultdef),4);
lastlabel:=nil;
realait:=floattype2ait[tfloatdef(resultdef).floattype];
{ const already used ? }
if not assigned(lab_real) then
begin
current_asmdata.getjumplabel(lastlabel);
lab_real:=lastlabel;
current_procinfo.aktlocaldata.concat(Tai_label.Create(lastlabel));
location.reference.symboldata:=current_procinfo.aktlocaldata.last;
case realait of
aitrealconst_s32bit :
begin
current_procinfo.aktlocaldata.concat(tai_realconst.create_s32real(ts32real(value_real)));
{ range checking? }
if floating_point_range_check_error and
(tai_realconst(current_procinfo.aktlocaldata.last).value.s32val=MathInf.Value) then
Message(parser_e_range_check_error);
end;
aitrealconst_s64bit :
begin
current_procinfo.aktlocaldata.concat(tai_realconst.create_s64real(ts64real(value_real)));
{ range checking? }
if floating_point_range_check_error and
(tai_realconst(current_procinfo.aktlocaldata.last).value.s64val=MathInf.Value) then
Message(parser_e_range_check_error);
end;
aitrealconst_s80bit :
begin
current_procinfo.aktlocaldata.concat(tai_realconst.create_s80real(value_real,tfloatdef(resultdef).size));
{ range checking? }
if floating_point_range_check_error and
(tai_realconst(current_procinfo.aktlocaldata.last).value.s80val=MathInf.Value) then
Message(parser_e_range_check_error);
end;
{$ifdef cpufloat128}
aitrealconst_s128bit :
begin
current_procinfo.aktlocaldata.concat(tai_realconst.create_s128real(value_real));
{ range checking? }
if floating_point_range_check_error and
(tai_realconst(current_procinfo.aktlocaldata.last).value.s128val=MathInf.Value) then
Message(parser_e_range_check_error);
end;
{$endif cpufloat128}
{ the round is necessary for native compilers where comp isn't a float }
aitrealconst_s64comp :
if (value_real>9223372036854775807.0) or (value_real<-9223372036854775808.0) then
message(parser_e_range_check_error)
else
current_procinfo.aktlocaldata.concat(tai_realconst.create_s64compreal(round(value_real)));
else
internalerror(2005092401);
end;
end;
location.reference.symbol:=lab_real;
location.reference.refaddr:=addr_pcrel;
end;
begin
crealconstnode:=trvrealconstnode;
end.
|