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, 1994, 1996, 1998, 1999, 2000, 2003, 2004, 2007, 2008,
5    2010, 2011  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 "read-md.h"
31 #include "gensupport.h"
32 
33 static void
34 write_upcase (const char *str)
35 {
36   for (; *str; str++)
37     putchar (TOUPPER(*str));
38 }
39 
40 static void
41 gen_attr (rtx attr)
42 {
43   const char *p, *tag;
44 
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, char **argv)
65 {
66   rtx desc;
67   bool have_delay = false;
68   bool have_sched = false;
69 
70   progname = "genattr-common";
71 
72   if (!init_rtx_reader_args (argc, argv))
73     return (FATAL_EXIT_CODE);
74 
75   puts ("/* Generated automatically by the program `genattr-common'");
76   puts ("   from the machine description file `md'.  */\n");
77   puts ("#ifndef GCC_INSN_ATTR_COMMON_H");
78   puts ("#define GCC_INSN_ATTR_COMMON_H\n");
79 
80   /* Read the machine description.  */
81 
82   while (1)
83     {
84       int line_no, insn_code_number;
85 
86       desc = read_md_rtx (&line_no, &insn_code_number);
87       if (desc == NULL)
88 	break;
89 
90       if (GET_CODE (desc) == DEFINE_ATTR)
91 	gen_attr (desc);
92 
93       if (GET_CODE (desc) == DEFINE_DELAY)
94         {
95 	  if (!have_delay)
96 	    {
97 	      printf ("#define DELAY_SLOTS\n");
98 	      have_delay = true;
99 	    }
100 	}
101       else if (GET_CODE (desc) == DEFINE_INSN_RESERVATION)
102 	{
103 	  if (!have_sched)
104 	    {
105 	      printf ("#define INSN_SCHEDULING\n");
106 	      have_sched = true;
107 	    }
108 	}
109     }
110   puts ("\n#endif /* GCC_INSN_ATTR_COMMON_H */");
111 
112   if (ferror (stdout) || fflush (stdout) || fclose (stdout))
113     return FATAL_EXIT_CODE;
114 
115   return SUCCESS_EXIT_CODE;
116 }
117