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, 1999 Free Software Foundation, Inc.
6 This file is part of GNU CC.
8 GNU CC is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2, or (at your option)
13 GNU CC is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GNU CC; see the file COPYING. If not, write to
20 the Free Software Foundation, 59 Temple Place - Suite 330,
21 Boston, MA 02111-1307, USA. */
30 static struct obstack obstack;
31 struct obstack *rtl_obstack = &obstack;
33 #define obstack_chunk_alloc xmalloc
34 #define obstack_chunk_free free
36 static int insn_code_number;
38 static void gen_insn PROTO((rtx));
44 /* Don't mention instructions whose names are the null string
45 or begin with '*'. They are in the machine description just
47 if (XSTR (insn, 0)[0] != 0 && XSTR (insn, 0)[0] != '*')
48 printf (" CODE_FOR_%s = %d,\n", XSTR (insn, 0),
56 register PTR val = (PTR) malloc (size);
59 fatal ("virtual memory exhausted");
70 ptr = (PTR) realloc (old, size);
72 ptr = (PTR) malloc (size);
74 fatal ("virtual memory exhausted");
78 extern int main PROTO ((int, char **));
89 progname = "gencodes";
90 obstack_init (rtl_obstack);
93 fatal ("No input file name.");
95 infile = fopen (argv[1], "r");
99 return (FATAL_EXIT_CODE);
101 read_rtx_filename = argv[1];
103 printf ("/* Generated automatically by the program `gencodes'\n\
104 from the machine description file `md'. */\n\n");
106 printf ("#ifndef MAX_INSN_CODE\n\n");
108 /* Read the machine description. */
110 insn_code_number = 0;
111 printf ("enum insn_code {\n");
115 c = read_skip_spaces (infile);
120 desc = read_rtx (infile);
121 if (GET_CODE (desc) == DEFINE_INSN || GET_CODE (desc) == DEFINE_EXPAND)
126 if (GET_CODE (desc) == DEFINE_PEEPHOLE
127 || GET_CODE (desc) == DEFINE_PEEPHOLE2
128 || GET_CODE (desc) == DEFINE_SPLIT)
134 printf (" CODE_FOR_nothing };\n");
136 printf ("\n#define MAX_INSN_CODE ((int) CODE_FOR_nothing)\n");
138 printf ("#endif /* MAX_INSN_CODE */\n");
141 return (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);
144 /* Define this so we can link with print-rtl.o to get debug_rtx function. */
147 int code ATTRIBUTE_UNUSED;