gcc/genattr-common.c

   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 }