Daily bump.
[official-gcc.git] / gcc / genconstants.c
blob9208f0c00092ad7348b8c771e015a44eaf1c8b48
1 /* Generate from machine description:
2 a series of #define statements, one for each constant named in
3 a (define_constants ...) pattern.
5 Copyright (C) 1987, 1991, 1995, 1998,
6 1999, 2000, 2001 Free Software Foundation, Inc.
8 This file is part of GCC.
10 GCC is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2, or (at your option)
13 any later version.
15 GCC is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with GCC; see the file COPYING. If not, write to
22 the Free Software Foundation, 59 Temple Place - Suite 330,
23 Boston, MA 02111-1307, USA. */
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. */
29 #include "hconfig.h"
30 #include "system.h"
31 #include "rtl.h"
32 #include "errors.h"
33 #include "gensupport.h"
35 static int print_md_constant PARAMS ((void **, void *));
36 extern int main PARAMS ((int, char **));
38 /* Called via traverse_md_constants; emit a #define for
39 the current constant definition. */
41 static int
42 print_md_constant (slot, info)
43 void **slot;
44 void *info;
46 struct md_constant *def = *slot;
47 FILE *file = info;
49 fprintf (file, "#define %s %s\n", def->name, def->value);
50 return 1;
53 int
54 main (argc, argv)
55 int argc;
56 char **argv;
58 int dummy1, dummy2;
59 rtx desc;
61 progname = "genconstants";
63 if (argc <= 1)
64 fatal ("no input file name");
66 if (init_md_reader (argv[1]) != SUCCESS_EXIT_CODE)
67 return (FATAL_EXIT_CODE);
69 /* Scan and discard the entire file. This has the side effect
70 of loading up the constants table that we wish to scan. */
72 desc = read_md_rtx (&dummy1, &dummy2);
73 while (desc);
75 puts ("/* Generated automatically by the program `genconstants'");
76 puts (" from the machine description file `md'. */\n");
77 puts ("#ifndef GCC_INSN_CONSTANTS_H");
78 puts ("#define GCC_INSN_CONSTANTS_H\n");
80 traverse_md_constants (print_md_constant, stdout);
82 puts ("\n#endif /* GCC_INSN_CONSTANTS_H */");
84 if (ferror (stdout) || fflush (stdout) || fclose (stdout))
85 return FATAL_EXIT_CODE;
87 return SUCCESS_EXIT_CODE;