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) 1987-2023 Free Software Foundation, Inc. |
5 | |
6 | This file is part of GCC. |
7 | |
8 | GCC is free software; you can redistribute it and/or modify it under |
9 | the terms of the GNU General Public License as published by the Free |
10 | Software Foundation; either version 3, or (at your option) any later |
11 | version. |
12 | |
13 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
14 | WARRANTY; without even the implied warranty of MERCHANTABILITY or |
15 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
16 | for more details. |
17 | |
18 | You should have received a copy of the GNU General Public License |
19 | along with GCC; see the file COPYING3. If not see |
20 | <http://www.gnu.org/licenses/>. */ |
21 | |
22 | |
23 | #include "bconfig.h" |
24 | #include "system.h" |
25 | #include "coretypes.h" |
26 | #include "tm.h" |
27 | #include "rtl.h" |
28 | #include "errors.h" |
29 | #include "gensupport.h" |
30 | |
31 | static void |
32 | gen_insn (md_rtx_info *info) |
33 | { |
34 | const char *name = XSTR (info->def, 0); |
35 | int truth = maybe_eval_c_test (XSTR (info->def, 2)); |
36 | |
37 | /* Don't mention instructions whose names are the null string |
38 | or begin with '*'. They are in the machine description just |
39 | to be recognized. */ |
40 | if (name[0] != 0 && name[0] != '*') |
41 | { |
42 | if (truth == 0) |
43 | printf (format: ",\n CODE_FOR_%s = CODE_FOR_nothing" , name); |
44 | else |
45 | printf (format: ",\n CODE_FOR_%s = %d" , name, info->index); |
46 | } |
47 | } |
48 | |
49 | int |
50 | main (int argc, const char **argv) |
51 | { |
52 | progname = "gencodes" ; |
53 | |
54 | /* We need to see all the possibilities. Elided insns may have |
55 | direct references to CODE_FOR_xxx in C code. */ |
56 | insn_elision = 0; |
57 | |
58 | if (!init_rtx_reader_args (argc, argv)) |
59 | return (FATAL_EXIT_CODE); |
60 | |
61 | printf (format: "\ |
62 | /* Generated automatically by the program `gencodes'\n\ |
63 | from the machine description file `md'. */\n\ |
64 | \n\ |
65 | #ifndef GCC_INSN_CODES_H\n\ |
66 | #define GCC_INSN_CODES_H\n\ |
67 | \n\ |
68 | enum insn_code {\n\ |
69 | CODE_FOR_nothing = 0" ); |
70 | |
71 | /* Read the machine description. */ |
72 | |
73 | md_rtx_info info; |
74 | while (read_md_rtx (&info)) |
75 | switch (GET_CODE (info.def)) |
76 | { |
77 | case DEFINE_INSN: |
78 | case DEFINE_EXPAND: |
79 | gen_insn (info: &info); |
80 | break; |
81 | |
82 | default: |
83 | break; |
84 | } |
85 | |
86 | printf (format: "\n};\n\ |
87 | \n\ |
88 | const unsigned int NUM_INSN_CODES = %d;\n\ |
89 | #endif /* GCC_INSN_CODES_H */\n" , get_num_insn_codes ()); |
90 | |
91 | if (ferror (stdout) || fflush (stdout) || fclose (stdout)) |
92 | return FATAL_EXIT_CODE; |
93 | |
94 | return SUCCESS_EXIT_CODE; |
95 | } |
96 | |