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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. | |
6b6ca844 | 5 | Copyright (C) 1987, 1991, 1995 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" | |
29 | ||
30 | static struct obstack obstack; | |
31 | struct obstack *rtl_obstack = &obstack; | |
32 | ||
33 | #define obstack_chunk_alloc xmalloc | |
34 | #define obstack_chunk_free free | |
35 | ||
85fda1eb | 36 | static void fatal PVPROTO ((const char *, ...)) |
bf94d1ec KG |
37 | ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN; |
38 | void fancy_abort PROTO((void)) ATTRIBUTE_NORETURN; | |
41299f41 | 39 | |
4db83042 MM |
40 | /* Define this so we can link with print-rtl.o to get debug_rtx function. */ |
41 | char **insn_name_ptr = 0; | |
42 | ||
41299f41 TW |
43 | static int insn_code_number; |
44 | ||
56c0e996 BS |
45 | static void gen_insn PROTO((rtx)); |
46 | ||
41299f41 TW |
47 | static void |
48 | gen_insn (insn) | |
49 | rtx insn; | |
50 | { | |
6b6ca844 RK |
51 | /* Don't mention instructions whose names are the null string |
52 | or begin with '*'. They are in the machine description just | |
53 | to be recognized. */ | |
54 | if (XSTR (insn, 0)[0] != 0 && XSTR (insn, 0)[0] != '*') | |
41299f41 TW |
55 | printf (" CODE_FOR_%s = %d,\n", XSTR (insn, 0), |
56 | insn_code_number); | |
57 | } | |
58 | ||
2778b98d | 59 | PTR |
41299f41 | 60 | xmalloc (size) |
2778b98d | 61 | size_t size; |
41299f41 | 62 | { |
2778b98d | 63 | register PTR val = (PTR) malloc (size); |
41299f41 TW |
64 | |
65 | if (val == 0) | |
66 | fatal ("virtual memory exhausted"); | |
67 | return val; | |
68 | } | |
69 | ||
2778b98d | 70 | PTR |
41299f41 | 71 | xrealloc (ptr, size) |
2778b98d KG |
72 | PTR ptr; |
73 | size_t size; | |
41299f41 | 74 | { |
2778b98d | 75 | register PTR result = (PTR) realloc (ptr, size); |
41299f41 TW |
76 | if (!result) |
77 | fatal ("virtual memory exhausted"); | |
78 | return result; | |
79 | } | |
80 | ||
81 | static void | |
85fda1eb | 82 | fatal VPROTO ((const char *format, ...)) |
41299f41 | 83 | { |
5148a72b | 84 | #ifndef ANSI_PROTOTYPES |
85fda1eb | 85 | const char *format; |
320e7c40 KG |
86 | #endif |
87 | va_list ap; | |
88 | ||
89 | VA_START (ap, format); | |
90 | ||
5148a72b | 91 | #ifndef ANSI_PROTOTYPES |
85fda1eb | 92 | format = va_arg (ap, const char *); |
320e7c40 KG |
93 | #endif |
94 | ||
41299f41 | 95 | fprintf (stderr, "gencodes: "); |
320e7c40 KG |
96 | vfprintf (stderr, format, ap); |
97 | va_end (ap); | |
41299f41 TW |
98 | fprintf (stderr, "\n"); |
99 | exit (FATAL_EXIT_CODE); | |
100 | } | |
101 | ||
102 | /* More 'friendly' abort that prints the line and file. | |
103 | config.h can #define abort fancy_abort if you like that sort of thing. */ | |
104 | ||
105 | void | |
106 | fancy_abort () | |
107 | { | |
108 | fatal ("Internal gcc abort."); | |
109 | } | |
110 | \f | |
111 | int | |
112 | main (argc, argv) | |
113 | int argc; | |
114 | char **argv; | |
115 | { | |
116 | rtx desc; | |
117 | FILE *infile; | |
41299f41 TW |
118 | register int c; |
119 | ||
120 | obstack_init (rtl_obstack); | |
121 | ||
122 | if (argc <= 1) | |
123 | fatal ("No input file name."); | |
124 | ||
125 | infile = fopen (argv[1], "r"); | |
126 | if (infile == 0) | |
127 | { | |
128 | perror (argv[1]); | |
129 | exit (FATAL_EXIT_CODE); | |
130 | } | |
131 | ||
132 | init_rtl (); | |
133 | ||
134 | printf ("/* Generated automatically by the program `gencodes'\n\ | |
135 | from the machine description file `md'. */\n\n"); | |
136 | ||
137 | printf ("#ifndef MAX_INSN_CODE\n\n"); | |
138 | ||
139 | /* Read the machine description. */ | |
140 | ||
141 | insn_code_number = 0; | |
142 | printf ("enum insn_code {\n"); | |
143 | ||
144 | while (1) | |
145 | { | |
146 | c = read_skip_spaces (infile); | |
147 | if (c == EOF) | |
148 | break; | |
149 | ungetc (c, infile); | |
150 | ||
151 | desc = read_rtx (infile); | |
152 | if (GET_CODE (desc) == DEFINE_INSN || GET_CODE (desc) == DEFINE_EXPAND) | |
153 | { | |
154 | gen_insn (desc); | |
155 | insn_code_number++; | |
156 | } | |
157 | if (GET_CODE (desc) == DEFINE_PEEPHOLE | |
158 | || GET_CODE (desc) == DEFINE_SPLIT) | |
159 | { | |
160 | insn_code_number++; | |
161 | } | |
162 | } | |
163 | ||
164 | printf (" CODE_FOR_nothing };\n"); | |
165 | ||
166 | printf ("\n#define MAX_INSN_CODE ((int) CODE_FOR_nothing)\n"); | |
167 | ||
168 | printf ("#endif /* MAX_INSN_CODE */\n"); | |
169 | ||
170 | fflush (stdout); | |
171 | exit (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE); | |
172 | /* NOTREACHED */ | |
173 | return 0; | |
174 | } |