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
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
|
/* Generate from machine description:
- some macros CODE_FOR_... giving the insn_code_number value
for each of the defined standard insn names.
Copyright (C) 1987, 1991, 1995, 1998, 1999 Free Software Foundation, Inc.
This file is part of GNU CC.
GNU CC 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, or (at your option)
any later version.
GNU CC 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 GNU CC; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include "hconfig.h"
#include "system.h"
#include "rtl.h"
#include "obstack.h"
static struct obstack obstack;
struct obstack *rtl_obstack = &obstack;
#define obstack_chunk_alloc xmalloc
#define obstack_chunk_free free
void fatal PVPROTO ((const char *, ...))
ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN;
void fancy_abort PROTO((void)) ATTRIBUTE_NORETURN;
/* Define this so we can link with print-rtl.o to get debug_rtx function. */
char **insn_name_ptr = 0;
static int insn_code_number;
static void gen_insn PROTO((rtx));
static void
gen_insn (insn)
rtx insn;
{
/* Don't mention instructions whose names are the null string
or begin with '*'. They are in the machine description just
to be recognized. */
if (XSTR (insn, 0)[0] != 0 && XSTR (insn, 0)[0] != '*')
printf (" CODE_FOR_%s = %d,\n", XSTR (insn, 0),
insn_code_number);
}
PTR
xmalloc (size)
size_t size;
{
register PTR val = (PTR) malloc (size);
if (val == 0)
fatal ("virtual memory exhausted");
return val;
}
PTR
xrealloc (old, size)
PTR old;
size_t size;
{
register PTR ptr;
if (old)
ptr = (PTR) realloc (old, size);
else
ptr = (PTR) malloc (size);
if (!ptr)
fatal ("virtual memory exhausted");
return ptr;
}
void
fatal VPROTO ((const char *format, ...))
{
#ifndef ANSI_PROTOTYPES
const char *format;
#endif
va_list ap;
VA_START (ap, format);
#ifndef ANSI_PROTOTYPES
format = va_arg (ap, const char *);
#endif
fprintf (stderr, "gencodes: ");
vfprintf (stderr, format, ap);
va_end (ap);
fprintf (stderr, "\n");
exit (FATAL_EXIT_CODE);
}
/* More 'friendly' abort that prints the line and file.
config.h can #define abort fancy_abort if you like that sort of thing. */
void
fancy_abort ()
{
fatal ("Internal gcc abort.");
}
int
main (argc, argv)
int argc;
char **argv;
{
rtx desc;
FILE *infile;
register int c;
obstack_init (rtl_obstack);
if (argc <= 1)
fatal ("No input file name.");
infile = fopen (argv[1], "r");
if (infile == 0)
{
perror (argv[1]);
exit (FATAL_EXIT_CODE);
}
init_rtl ();
printf ("/* Generated automatically by the program `gencodes'\n\
from the machine description file `md'. */\n\n");
printf ("#ifndef MAX_INSN_CODE\n\n");
/* Read the machine description. */
insn_code_number = 0;
printf ("enum insn_code {\n");
while (1)
{
c = read_skip_spaces (infile);
if (c == EOF)
break;
ungetc (c, infile);
desc = read_rtx (infile);
if (GET_CODE (desc) == DEFINE_INSN || GET_CODE (desc) == DEFINE_EXPAND)
{
gen_insn (desc);
insn_code_number++;
}
if (GET_CODE (desc) == DEFINE_PEEPHOLE
|| GET_CODE (desc) == DEFINE_SPLIT)
{
insn_code_number++;
}
}
printf (" CODE_FOR_nothing };\n");
printf ("\n#define MAX_INSN_CODE ((int) CODE_FOR_nothing)\n");
printf ("#endif /* MAX_INSN_CODE */\n");
fflush (stdout);
exit (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);
/* NOTREACHED */
return 0;
}
|
