Merge branch 'master' of ssh://crater.dragonflybsd.org/repository/git/dragonfly
[dragonfly.git] / contrib / gcc-3.4 / gcc / genconstants.c
CommitLineData
003757ed
MD
1/* Generate from machine description:
2 a series of #define statements, one for each constant named in
3 a (define_constants ...) pattern.
4
5 Copyright (C) 1987, 1991, 1995, 1998, 1999, 2000, 2001, 2003
6 Free Software Foundation, Inc.
7
8This file is part of GCC.
9
10GCC is free software; you can redistribute it and/or modify
11it under the terms of the GNU General Public License as published by
12the Free Software Foundation; either version 2, or (at your option)
13any later version.
14
15GCC is distributed in the hope that it will be useful,
16but WITHOUT ANY WARRANTY; without even the implied warranty of
17MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18GNU General Public License for more details.
19
20You should have received a copy of the GNU General Public License
21along with GCC; see the file COPYING. If not, write to
22the Free Software Foundation, 59 Temple Place - Suite 330,
23Boston, MA 02111-1307, USA. */
24
25/* This program does not use gensupport.c because it does not need to
26 look at insn patterns, only (define_constants), and we want to
27 minimize dependencies. */
28
29#include "bconfig.h"
30#include "system.h"
31#include "coretypes.h"
32#include "tm.h"
33#include "rtl.h"
34#include "errors.h"
35#include "gensupport.h"
36
37static int print_md_constant (void **, void *);
38
39/* Called via traverse_md_constants; emit a #define for
40 the current constant definition. */
41
42static int
43print_md_constant (void **slot, void *info)
44{
45 struct md_constant *def = *slot;
46 FILE *file = info;
47
48 fprintf (file, "#define %s %s\n", def->name, def->value);
49 return 1;
50}
51
52int
53main (int argc, char **argv)
54{
55 int dummy1, dummy2;
56 rtx desc;
57
58 progname = "genconstants";
59
60 if (argc <= 1)
61 fatal ("no input file name");
62
63 if (init_md_reader (argv[1]) != SUCCESS_EXIT_CODE)
64 return (FATAL_EXIT_CODE);
65
66 /* Scan and discard the entire file. This has the side effect
67 of loading up the constants table that we wish to scan. */
68 do
69 desc = read_md_rtx (&dummy1, &dummy2);
70 while (desc);
71
72 puts ("/* Generated automatically by the program `genconstants'");
73 puts (" from the machine description file `md'. */\n");
74 puts ("#ifndef GCC_INSN_CONSTANTS_H");
75 puts ("#define GCC_INSN_CONSTANTS_H\n");
76
77 traverse_md_constants (print_md_constant, stdout);
78
79 puts ("\n#endif /* GCC_INSN_CONSTANTS_H */");
80
81 if (ferror (stdout) || fflush (stdout) || fclose (stdout))
82 return FATAL_EXIT_CODE;
83
84 return SUCCESS_EXIT_CODE;
85}
86