2008-02-05 H.J. Lu <hongjiu.lu@intel.com>

[pf3gnuchains/gcc-fork.git] / gcc / genflags.c

diff --git a/gcc/genflags.c b/gcc/genflags.c
index ec90c1a..b2c878d 100644 (file)
--- a/gcc/genflags.c
+++ b/gcc/genflags.c
@@ -1,14 +1,14 @@
 /* Generate from machine description:
    - some flags HAVE_... saying which simple standard instructions are
    available for this machine.
-   Copyright (C) 1987, 1991, 1995, 1998,
-   1999, 2000 Free Software Foundation, Inc.
+   Copyright (C) 1987, 1991, 1995, 1998, 1999, 2000, 2003, 2004, 2007
+   Free Software Foundation, Inc.
 
 This file is part of GCC.
 
 GCC is free software; you can redistribute it and/or modify it under
 the terms of the GNU General Public License as published by the Free
-Software Foundation; either version 2, or (at your option) any later
+Software Foundation; either version 3, or (at your option) any later
 version.
 
 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
@@ -17,9 +17,8 @@ FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 for more details.
 
 You should have received a copy of the GNU General Public License
-along with GCC; see the file COPYING.  If not, write to the Free
-Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA.  */
+along with GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
 
 
 #include "bconfig.h"
@@ -40,17 +39,16 @@ static int max_id_len;
 /* Max operand encountered in a scan over some insn.  */
 static int max_opno;
 
-static void max_operand_1      PARAMS ((rtx));
-static int num_operands                PARAMS ((rtx));
-static void gen_proto          PARAMS ((rtx));
-static void gen_macro          PARAMS ((const char *, int, int));
-static void gen_insn           PARAMS ((rtx));
+static void max_operand_1 (rtx);
+static int num_operands (rtx);
+static void gen_proto (rtx);
+static void gen_macro (const char *, int, int);
+static void gen_insn (rtx);
 
 /* Count the number of match_operand's found.  */
 
 static void
-max_operand_1 (x)
-     rtx x;
+max_operand_1 (rtx x)
 {
   RTX_CODE code;
   int i;
@@ -82,8 +80,7 @@ max_operand_1 (x)
 }
 
 static int
-num_operands (insn)
-     rtx insn;
+num_operands (rtx insn)
 {
   int len = XVECLEN (insn, 1);
   int i;
@@ -100,16 +97,12 @@ num_operands (insn)
    of arguments it takes.  Any missing arguments are assumed to be at
    the end.  */
 static void
-gen_macro (name, real, expect)
-     const char *name;
-     int real, expect;
+gen_macro (const char *name, int real, int expect)
 {
   int i;
 
-  if (real > expect)
-    abort ();
-  if (real == 0)
-    abort ();
+  gcc_assert (real <= expect);
+  gcc_assert (real);
 
   /* #define GEN_CALL(A, B, C, D) gen_call((A), (B)) */
   fputs ("#define GEN_", stdout);
@@ -131,8 +124,7 @@ gen_macro (name, real, expect)
    does nothing.  */
 
 static void
-gen_proto (insn)
-     rtx insn;
+gen_proto (rtx insn)
 {
   int num = num_operands (insn);
   int i;
@@ -159,9 +151,9 @@ gen_proto (insn)
     }
 
   if (truth != 0)
-    printf ("extern rtx        gen_%-*s PARAMS ((", max_id_len, name);
+    printf ("extern rtx        gen_%-*s (", max_id_len, name);
   else
-    printf ("static inline rtx gen_%-*s PARAMS ((", max_id_len, name);
+    printf ("static inline rtx gen_%-*s (", max_id_len, name);
 
   if (num == 0)
     fputs ("void", stdout);
@@ -169,11 +161,11 @@ gen_proto (insn)
     {
       for (i = 1; i < num; i++)
        fputs ("rtx, ", stdout);
-      
+
       fputs ("rtx", stdout);
     }
 
-  puts ("));");
+  puts (");");
 
   /* Some back ends want to take the address of generator functions,
      so we cannot simply use #define for these dummy definitions.  */
@@ -184,21 +176,18 @@ gen_proto (insn)
        {
          putchar ('(');
          for (i = 0; i < num-1; i++)
-           printf ("%c, ", 'a' + i);
-         printf ("%c)\n", 'a' + i);
-         for (i = 0; i < num; i++)
-           printf ("     rtx %c ATTRIBUTE_UNUSED;\n", 'a' + i);
+           printf ("rtx ARG_UNUSED (%c), ", 'a' + i);
+         printf ("rtx ARG_UNUSED (%c))\n", 'a' + i);
        }
       else
-       puts ("()");
+       puts ("(void)");
       puts ("{\n  return 0;\n}");
     }
 
 }
 
 static void
-gen_insn (insn)
-     rtx insn;
+gen_insn (rtx insn)
 {
   const char *name = XSTR (insn, 0);
   const char *p;
@@ -217,7 +206,7 @@ gen_insn (insn)
     max_id_len = len;
 
   if (truth == 0)
-    /* emit nothing */;
+    /* Emit nothing.  */;
   else if (truth == 1)
     printf ("#define HAVE_%s 1\n", name);
   else
@@ -238,12 +227,8 @@ gen_insn (insn)
   obstack_grow (&obstack, &insn, sizeof (rtx));
 }
 
-extern int main PARAMS ((int, char **));
-
 int
-main (argc, argv)
-     int argc;
-     char **argv;
+main (int argc, char **argv)
 {
   rtx desc;
   rtx dummy;
@@ -257,12 +242,9 @@ main (argc, argv)
      direct calls to their generators in C code.  */
   insn_elision = 0;
 
-  if (argc <= 1)
-    fatal ("no input file name");
-
   if (init_md_reader_args (argc, argv) != SUCCESS_EXIT_CODE)
     return (FATAL_EXIT_CODE);
-  
+
   puts ("/* Generated automatically by the program `genflags'");
   puts ("   from the machine description file `md'.  */\n");
   puts ("#ifndef GCC_INSN_FLAGS_H");
@@ -284,7 +266,7 @@ main (argc, argv)
   /* Print out the prototypes now.  */
   dummy = (rtx) 0;
   obstack_grow (&obstack, &dummy, sizeof (rtx));
-  insns = (rtx *) obstack_finish (&obstack);
+  insns = XOBFINISH (&obstack, rtx *);
 
   for (insn_ptr = insns; *insn_ptr; insn_ptr++)
     gen_proto (*insn_ptr);
@@ -296,11 +278,3 @@ main (argc, argv)
 
   return SUCCESS_EXIT_CODE;
 }
-
-/* Define this so we can link with print-rtl.o to get debug_rtx function.  */
-const char *
-get_insn_name (code)
-     int code ATTRIBUTE_UNUSED;
-{
-  return NULL;
-}