1 /* Generate from machine description:
2 - some macros CODE_FOR_... giving the insn_code_number value
3 for each of the defined standard insn names.
4 Copyright (C) 1987, 1991, 1995, 1998,
5 1999, 2000 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. */
31 static struct obstack obstack;
32 struct obstack *rtl_obstack = &obstack;
34 #define obstack_chunk_alloc xmalloc
35 #define obstack_chunk_free free
37 static int insn_code_number;
39 static void gen_insn PARAMS ((rtx));
45 /* Don't mention instructions whose names are the null string
46 or begin with '*'. They are in the machine description just
48 if (XSTR (insn, 0)[0] != 0 && XSTR (insn, 0)[0] != '*')
49 printf (" CODE_FOR_%s = %d,\n", XSTR (insn, 0),
57 register PTR val = (PTR) malloc (size);
60 fatal ("virtual memory exhausted");
71 ptr = (PTR) realloc (old, size);
73 ptr = (PTR) malloc (size);
75 fatal ("virtual memory exhausted");
79 extern int main PARAMS ((int, char **));
90 progname = "gencodes";
91 obstack_init (rtl_obstack);
94 fatal ("No input file name.");
96 infile = fopen (argv[1], "r");
100 return (FATAL_EXIT_CODE);
102 read_rtx_filename = argv[1];
104 printf ("/* Generated automatically by the program `gencodes'\n\
105 from the machine description file `md'. */\n\n");
107 printf ("#ifndef MAX_INSN_CODE\n\n");
109 /* Read the machine description. */
111 insn_code_number = 0;
112 printf ("enum insn_code {\n");
116 c = read_skip_spaces (infile);
121 desc = read_rtx (infile);
122 if (GET_CODE (desc) == DEFINE_INSN || GET_CODE (desc) == DEFINE_EXPAND)
127 if (GET_CODE (desc) == DEFINE_PEEPHOLE
128 || GET_CODE (desc) == DEFINE_PEEPHOLE2
129 || GET_CODE (desc) == DEFINE_SPLIT)
135 printf (" CODE_FOR_nothing };\n");
137 printf ("\n#define MAX_INSN_CODE ((int) CODE_FOR_nothing)\n");
139 printf ("#endif /* MAX_INSN_CODE */\n");
142 return (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);
145 /* Define this so we can link with print-rtl.o to get debug_rtx function. */
148 int code ATTRIBUTE_UNUSED;