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, 1998, 1999 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 /* Define this so we can link with print-rtl.o to get debug_rtx function. */
38 char **insn_name_ptr
= 0;
40 static int insn_code_number
;
42 static void gen_insn
PROTO((rtx
));
48 /* Don't mention instructions whose names are the null string
49 or begin with '*'. They are in the machine description just
51 if (XSTR (insn
, 0)[0] != 0 && XSTR (insn
, 0)[0] != '*')
52 printf (" CODE_FOR_%s = %d,\n", XSTR (insn
, 0),
60 register PTR val
= (PTR
) malloc (size
);
63 fatal ("virtual memory exhausted");
74 ptr
= (PTR
) realloc (old
, size
);
76 ptr
= (PTR
) malloc (size
);
78 fatal ("virtual memory exhausted");
91 progname
= "gencodes";
92 obstack_init (rtl_obstack
);
95 fatal ("No input file name.");
97 infile
= fopen (argv
[1], "r");
101 exit (FATAL_EXIT_CODE
);
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 exit (ferror (stdout
) != 0 ? FATAL_EXIT_CODE
: SUCCESS_EXIT_CODE
);