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Commit | Line | Data |
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41299f41 TW |
1 | /* Generate from machine description: |
2 | ||
3 | - some macros CODE_FOR_... giving the insn_code_number value | |
4 | for each of the defined standard insn names. | |
34627ce6 | 5 | Copyright (C) 1987, 1991, 1995, 1998, 1999 Free Software Foundation, Inc. |
41299f41 TW |
6 | |
7 | This file is part of GNU CC. | |
8 | ||
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) | |
12 | any later version. | |
13 | ||
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. | |
18 | ||
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 | |
a35311b0 RK |
21 | the Free Software Foundation, 59 Temple Place - Suite 330, |
22 | Boston, MA 02111-1307, USA. */ | |
41299f41 TW |
23 | |
24 | ||
0d64891c | 25 | #include "hconfig.h" |
0b93b64e | 26 | #include "system.h" |
41299f41 TW |
27 | #include "rtl.h" |
28 | #include "obstack.h" | |
f8b6598e | 29 | #include "errors.h" |
41299f41 TW |
30 | |
31 | static struct obstack obstack; | |
32 | struct obstack *rtl_obstack = &obstack; | |
33 | ||
34 | #define obstack_chunk_alloc xmalloc | |
35 | #define obstack_chunk_free free | |
36 | ||
4db83042 MM |
37 | /* Define this so we can link with print-rtl.o to get debug_rtx function. */ |
38 | char **insn_name_ptr = 0; | |
39 | ||
41299f41 TW |
40 | static int insn_code_number; |
41 | ||
56c0e996 BS |
42 | static void gen_insn PROTO((rtx)); |
43 | ||
41299f41 TW |
44 | static void |
45 | gen_insn (insn) | |
46 | rtx insn; | |
47 | { | |
6b6ca844 RK |
48 | /* Don't mention instructions whose names are the null string |
49 | or begin with '*'. They are in the machine description just | |
50 | to be recognized. */ | |
51 | if (XSTR (insn, 0)[0] != 0 && XSTR (insn, 0)[0] != '*') | |
41299f41 TW |
52 | printf (" CODE_FOR_%s = %d,\n", XSTR (insn, 0), |
53 | insn_code_number); | |
54 | } | |
55 | ||
2778b98d | 56 | PTR |
41299f41 | 57 | xmalloc (size) |
2778b98d | 58 | size_t size; |
41299f41 | 59 | { |
2778b98d | 60 | register PTR val = (PTR) malloc (size); |
41299f41 TW |
61 | |
62 | if (val == 0) | |
63 | fatal ("virtual memory exhausted"); | |
64 | return val; | |
65 | } | |
66 | ||
2778b98d | 67 | PTR |
470b68c0 RH |
68 | xrealloc (old, size) |
69 | PTR old; | |
2778b98d | 70 | size_t size; |
41299f41 | 71 | { |
470b68c0 | 72 | register PTR ptr; |
09d83d25 | 73 | if (old) |
470b68c0 RH |
74 | ptr = (PTR) realloc (old, size); |
75 | else | |
76 | ptr = (PTR) malloc (size); | |
77 | if (!ptr) | |
41299f41 | 78 | fatal ("virtual memory exhausted"); |
470b68c0 | 79 | return ptr; |
41299f41 TW |
80 | } |
81 | ||
41299f41 TW |
82 | int |
83 | main (argc, argv) | |
84 | int argc; | |
85 | char **argv; | |
86 | { | |
87 | rtx desc; | |
88 | FILE *infile; | |
41299f41 TW |
89 | register int c; |
90 | ||
f8b6598e | 91 | progname = "gencodes"; |
41299f41 TW |
92 | obstack_init (rtl_obstack); |
93 | ||
94 | if (argc <= 1) | |
95 | fatal ("No input file name."); | |
96 | ||
97 | infile = fopen (argv[1], "r"); | |
98 | if (infile == 0) | |
99 | { | |
100 | perror (argv[1]); | |
101 | exit (FATAL_EXIT_CODE); | |
102 | } | |
103 | ||
41299f41 TW |
104 | printf ("/* Generated automatically by the program `gencodes'\n\ |
105 | from the machine description file `md'. */\n\n"); | |
106 | ||
107 | printf ("#ifndef MAX_INSN_CODE\n\n"); | |
108 | ||
109 | /* Read the machine description. */ | |
110 | ||
111 | insn_code_number = 0; | |
112 | printf ("enum insn_code {\n"); | |
113 | ||
114 | while (1) | |
115 | { | |
116 | c = read_skip_spaces (infile); | |
117 | if (c == EOF) | |
118 | break; | |
119 | ungetc (c, infile); | |
120 | ||
121 | desc = read_rtx (infile); | |
122 | if (GET_CODE (desc) == DEFINE_INSN || GET_CODE (desc) == DEFINE_EXPAND) | |
123 | { | |
124 | gen_insn (desc); | |
125 | insn_code_number++; | |
126 | } | |
127 | if (GET_CODE (desc) == DEFINE_PEEPHOLE | |
128 | || GET_CODE (desc) == DEFINE_SPLIT) | |
129 | { | |
130 | insn_code_number++; | |
131 | } | |
132 | } | |
133 | ||
134 | printf (" CODE_FOR_nothing };\n"); | |
135 | ||
136 | printf ("\n#define MAX_INSN_CODE ((int) CODE_FOR_nothing)\n"); | |
137 | ||
138 | printf ("#endif /* MAX_INSN_CODE */\n"); | |
139 | ||
140 | fflush (stdout); | |
141 | exit (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE); | |
142 | /* NOTREACHED */ | |
143 | return 0; | |
144 | } |