1 /* Generate attribute information shared between driver and core
2    compilers (insn-attr-common.h) from machine description.  Split out
3    of genattr.c.
4    Copyright (C) 1991-2021 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 "read-md.h"
30 #include "gensupport.h"
31 
32 static void
33 write_upcase (const char *str)
34 {
35   for (; *str; str++)
36     putchar (TOUPPER (*str));
37 }
38 
39 static void
40 gen_attr (md_rtx_info *info)
41 {
42   const char *p, *tag;
43 
44   rtx attr = info->def;
45   p = XSTR (attr, 1);
46   if (*p != '\0')
47     {
48       printf ("enum attr_%s {", XSTR (attr, 0));
49 
50       while ((tag = scan_comma_elt (&p)) != 0)
51 	{
52 	  write_upcase (XSTR (attr, 0));
53 	  putchar ('_');
54 	  while (tag != p)
55 	    putchar (TOUPPER (*tag++));
56 	  if (*p == ',')
57 	    fputs (", ", stdout);
58 	}
59       fputs ("};\n", stdout);
60     }
61 }
62 
63 int
64 main (int argc, const char **argv)
65 {
66   bool have_delay = false;
67   bool have_sched = false;
68 
69   progname = "genattr-common";
70 
71   if (!init_rtx_reader_args (argc, argv))
72     return (FATAL_EXIT_CODE);
73 
74   puts ("/* Generated automatically by the program `genattr-common'");
75   puts ("   from the machine description file `md'.  */\n");
76   puts ("#ifndef GCC_INSN_ATTR_COMMON_H");
77   puts ("#define GCC_INSN_ATTR_COMMON_H\n");
78 
79   /* Read the machine description.  */
80 
81   md_rtx_info info;
82   while (read_md_rtx (&info))
83     switch (GET_CODE (info.def))
84       {
85       case DEFINE_ATTR:
86 	gen_attr (&info);
87 	break;
88 
89       case DEFINE_DELAY:
90 	have_delay = true;
91 	break;
92 
93       case DEFINE_INSN_RESERVATION:
94 	if (!have_sched)
95 	  {
96 	    printf ("#define INSN_SCHEDULING\n");
97 	    have_sched = true;
98 	  }
99 	break;
100 
101       default:
102 	break;
103       }
104 
105 	    printf ("#define DELAY_SLOTS %d\n", have_delay);
106   puts ("\n#endif /* GCC_INSN_ATTR_COMMON_H */");
107 
108   if (ferror (stdout) || fflush (stdout) || fclose (stdout))
109     return FATAL_EXIT_CODE;
110 
111   return SUCCESS_EXIT_CODE;
112 }
113