1 /* Generate from machine description:
3 - some macros CODE_FOR_... giving the insn_code_number value
4 for each of the defined standard insn names.
5 Copyright (C) 1987, 1991, 1995 Free Software Foundation, Inc.
7 This file is part of GNU CC.
9 GNU CC is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2, or (at your option)
14 GNU CC is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with GNU CC; see the file COPYING. If not, write to
21 the Free Software Foundation, 59 Temple Place - Suite 330,
22 Boston, MA 02111-1307, USA. */
35 static struct obstack obstack;
36 struct obstack *rtl_obstack = &obstack;
38 #define obstack_chunk_alloc xmalloc
39 #define obstack_chunk_free free
41 char *xmalloc PROTO((unsigned));
42 static void fatal PVPROTO ((char *, ...)) ATTRIBUTE_PRINTF_1;
43 void fancy_abort PROTO((void));
45 /* Define this so we can link with print-rtl.o to get debug_rtx function. */
46 char **insn_name_ptr = 0;
48 static int insn_code_number;
50 static void gen_insn PROTO((rtx));
56 /* Don't mention instructions whose names are the null string
57 or begin with '*'. They are in the machine description just
59 if (XSTR (insn, 0)[0] != 0 && XSTR (insn, 0)[0] != '*')
60 printf (" CODE_FOR_%s = %d,\n", XSTR (insn, 0),
68 register char *val = (char *) malloc (size);
71 fatal ("virtual memory exhausted");
80 char *result = (char *) realloc (ptr, size);
82 fatal ("virtual memory exhausted");
87 fatal VPROTO ((char *format, ...))
94 VA_START (ap, format);
97 format = va_arg (ap, char *);
100 fprintf (stderr, "gencodes: ");
101 vfprintf (stderr, format, ap);
103 fprintf (stderr, "\n");
104 exit (FATAL_EXIT_CODE);
107 /* More 'friendly' abort that prints the line and file.
108 config.h can #define abort fancy_abort if you like that sort of thing. */
113 fatal ("Internal gcc abort.");
125 obstack_init (rtl_obstack);
128 fatal ("No input file name.");
130 infile = fopen (argv[1], "r");
134 exit (FATAL_EXIT_CODE);
139 printf ("/* Generated automatically by the program `gencodes'\n\
140 from the machine description file `md'. */\n\n");
142 printf ("#ifndef MAX_INSN_CODE\n\n");
144 /* Read the machine description. */
146 insn_code_number = 0;
147 printf ("enum insn_code {\n");
151 c = read_skip_spaces (infile);
156 desc = read_rtx (infile);
157 if (GET_CODE (desc) == DEFINE_INSN || GET_CODE (desc) == DEFINE_EXPAND)
162 if (GET_CODE (desc) == DEFINE_PEEPHOLE
163 || GET_CODE (desc) == DEFINE_SPLIT)
169 printf (" CODE_FOR_nothing };\n");
171 printf ("\n#define MAX_INSN_CODE ((int) CODE_FOR_nothing)\n");
173 printf ("#endif /* MAX_INSN_CODE */\n");
176 exit (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);