Mercurial > hg > CbC > CbC_gcc

comparison gcc/gencodes.c @ 0:a06113de4d67

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
first commit
author kent <kent@cr.ie.u-ryukyu.ac.jp>
date Fri, 17 Jul 2009 14:47:48 +0900
parents
children f6334be47118
comparison
equal deleted inserted replaced
-1:000000000000 0:a06113de4d67
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, 2000, 2001, 2003,
5 2004, 2007 Free Software Foundation, Inc.
6
7 This file is part of GCC.
8
9 GCC is free software; you can redistribute it and/or modify it under
10 the terms of the GNU General Public License as published by the Free
11 Software Foundation; either version 3, or (at your option) any later
12 version.
13
14 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
15 WARRANTY; without even the implied warranty of MERCHANTABILITY or
16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
17 for more details.
18
19 You should have received a copy of the GNU General Public License
20 along with GCC; see the file COPYING3. If not see
21 <http://www.gnu.org/licenses/>. */
22
23
24 #include "bconfig.h"
25 #include "system.h"
26 #include "coretypes.h"
27 #include "tm.h"
28 #include "rtl.h"
29 #include "errors.h"
30 #include "gensupport.h"
31
32 static void
33 gen_insn (rtx insn, int code)
34 {
35 const char *name = XSTR (insn, 0);
36 int truth = maybe_eval_c_test (XSTR (insn, 2));
37
38 /* Don't mention instructions whose names are the null string
39 or begin with '*'. They are in the machine description just
40 to be recognized. */
41 if (name[0] != 0 && name[0] != '*')
42 {
43 if (truth == 0)
44 printf ("#define CODE_FOR_%s CODE_FOR_nothing\n", name);
45 else
46 printf (" CODE_FOR_%s = %d,\n", name, code);
47 }
48 }
49
50 int
51 main (int argc, char **argv)
52 {
53 rtx desc;
54
55 progname = "gencodes";
56
57 /* We need to see all the possibilities. Elided insns may have
58 direct references to CODE_FOR_xxx in C code. */
59 insn_elision = 0;
60
61 if (init_md_reader_args (argc, argv) != SUCCESS_EXIT_CODE)
62 return (FATAL_EXIT_CODE);
63
64 puts ("\
65 /* Generated automatically by the program `gencodes'\n\
66 from the machine description file `md'. */\n\
67 \n\
68 #ifndef GCC_INSN_CODES_H\n\
69 #define GCC_INSN_CODES_H\n\
70 \n\
71 enum insn_code {");
72
73 /* Read the machine description. */
74
75 while (1)
76 {
77 int line_no;
78 int insn_code_number;
79
80 desc = read_md_rtx (&line_no, &insn_code_number);
81 if (desc == NULL)
82 break;
83
84 if (GET_CODE (desc) == DEFINE_INSN || GET_CODE (desc) == DEFINE_EXPAND)
85 gen_insn (desc, insn_code_number);
86 }
87
88 puts (" CODE_FOR_nothing\n\
89 };\n\
90 \n\
91 #endif /* GCC_INSN_CODES_H */");
92
93 if (ferror (stdout) || fflush (stdout) || fclose (stdout))
94 return FATAL_EXIT_CODE;
95
96 return SUCCESS_EXIT_CODE;
97 }