/* Generate from machine description:
-
- some flags HAVE_... saying which simple standard instructions are
available for this machine.
- Copyright (C) 1987, 1991, 1995 Free Software Foundation, Inc.
+ Copyright (C) 1987, 1991, 1995, 1998,
+ 1999, 2000 Free Software Foundation, Inc.
This file is part of GNU CC.
Boston, MA 02111-1307, USA. */
-#include <stdio.h>
#include "hconfig.h"
+#include "system.h"
#include "rtl.h"
#include "obstack.h"
+#include "errors.h"
static struct obstack obstack;
struct obstack *rtl_obstack = &obstack;
#define obstack_chunk_alloc xmalloc
#define obstack_chunk_free free
-extern void free ();
-extern rtx read_rtx ();
-
-char *xmalloc ();
-static void fatal ();
-void fancy_abort ();
-
-/* Names for patterns. Need to allow linking with print-rtl. */
-char **insn_name_ptr;
-
/* Obstacks to remember normal, and call insns. */
static struct obstack call_obstack, normal_obstack;
/* Max size of names encountered. */
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_nonproto PARAMS ((rtx));
+static void gen_insn PARAMS ((rtx));
+
/* Count the number of match_operand's found. */
-static int
-num_operands (x)
+
+static void
+max_operand_1 (x)
rtx x;
{
- int count = 0;
- int i, j;
- enum rtx_code code = GET_CODE (x);
- char *format_ptr = GET_RTX_FORMAT (code);
+ register RTX_CODE code;
+ register int i;
+ register int len;
+ register const char *fmt;
+
+ if (x == 0)
+ return;
- if (code == MATCH_OPERAND)
- return 1;
+ code = GET_CODE (x);
- if (code == MATCH_OPERATOR || code == MATCH_PARALLEL)
- count++;
+ if (code == MATCH_OPERAND || code == MATCH_OPERATOR
+ || code == MATCH_PARALLEL)
+ max_opno = MAX (max_opno, XINT (x, 0));
- for (i = 0; i < GET_RTX_LENGTH (code); i++)
+ fmt = GET_RTX_FORMAT (code);
+ len = GET_RTX_LENGTH (code);
+ for (i = 0; i < len; i++)
{
- switch (*format_ptr++)
+ if (fmt[i] == 'e' || fmt[i] == 'u')
+ max_operand_1 (XEXP (x, i));
+ else if (fmt[i] == 'E')
{
- case 'u':
- case 'e':
- count += num_operands (XEXP (x, i));
- break;
-
- case 'E':
- if (XVEC (x, i) != NULL)
- for (j = 0; j < XVECLEN (x, i); j++)
- count += num_operands (XVECEXP (x, i, j));
-
- break;
+ int j;
+ for (j = 0; j < XVECLEN (x, i); j++)
+ max_operand_1 (XVECEXP (x, i, j));
}
}
+}
+
+static int
+num_operands (insn)
+ rtx insn;
+{
+ register int len = XVECLEN (insn, 1);
+ register int i;
+
+ max_opno = -1;
+
+ for (i = 0; i < len; i++)
+ max_operand_1 (XVECEXP (insn, 1, i));
- return count;
+ return max_opno + 1;
}
/* Print out prototype information for a function. */
+
static void
gen_proto (insn)
rtx insn;
{
int num = num_operands (insn);
- printf ("extern rtx gen_%-*s PROTO((", max_id_len, XSTR (insn, 0));
+ printf ("extern rtx gen_%-*s PARAMS ((", max_id_len, XSTR (insn, 0));
if (num == 0)
printf ("void");
}
/* Print out a function declaration without a prototype. */
+
static void
gen_nonproto (insn)
rtx insn;
gen_insn (insn)
rtx insn;
{
- char *name = XSTR (insn, 0);
- char *p;
+ const char *name = XSTR (insn, 0);
+ const char *p;
struct obstack *obstack_ptr;
int len;
call_value_pop) ignoring the extra arguments that are passed for
some machines, so by default, turn off the prototype. */
- obstack_ptr = (name[0] == 'c'
+ obstack_ptr = ((name[0] == 'c' || name[0] == 's')
&& (!strcmp (name, "call")
|| !strcmp (name, "call_value")
|| !strcmp (name, "call_pop")
- || !strcmp (name, "call_value_pop")))
+ || !strcmp (name, "call_value_pop")
+ || !strcmp (name, "sibcall")
+ || !strcmp (name, "sibcall_value")
+ || !strcmp (name, "sibcall_pop")
+ || !strcmp (name, "sibcall_value_pop")))
? &call_obstack : &normal_obstack;
obstack_grow (obstack_ptr, &insn, sizeof (rtx));
}
\f
-char *
+PTR
xmalloc (size)
- unsigned size;
+ size_t size;
{
- register char *val = (char *) malloc (size);
+ register PTR val = (PTR) malloc (size);
if (val == 0)
fatal ("virtual memory exhausted");
return val;
}
-char *
-xrealloc (ptr, size)
- char *ptr;
- unsigned size;
+PTR
+xrealloc (old, size)
+ PTR old;
+ size_t size;
{
- char *result = (char *) realloc (ptr, size);
- if (!result)
+ register PTR ptr;
+ if (old)
+ ptr = (PTR) realloc (old, size);
+ else
+ ptr = (PTR) malloc (size);
+ if (!ptr)
fatal ("virtual memory exhausted");
- return result;
-}
-
-static void
-fatal (s, a1, a2)
- char *s;
-{
- fprintf (stderr, "genflags: ");
- fprintf (stderr, s, a1, a2);
- fprintf (stderr, "\n");
- exit (FATAL_EXIT_CODE);
+ return ptr;
}
-/* More 'friendly' abort that prints the line and file.
- config.h can #define abort fancy_abort if you like that sort of thing. */
+extern int main PARAMS ((int, char **));
-void
-fancy_abort ()
-{
- fatal ("Internal gcc abort.");
-}
-\f
int
main (argc, argv)
int argc;
FILE *infile;
register int c;
+ progname = "genflags";
obstack_init (rtl_obstack);
obstack_init (&call_obstack);
obstack_init (&normal_obstack);
if (infile == 0)
{
perror (argv[1]);
- exit (FATAL_EXIT_CODE);
+ return (FATAL_EXIT_CODE);
}
-
- init_rtl ();
+ read_rtx_filename = argv[1];
printf ("/* Generated automatically by the program `genflags'\n\
from the machine description file `md'. */\n\n");
}
/* Print out the prototypes now. */
- dummy = (rtx)0;
+ dummy = (rtx) 0;
obstack_grow (&call_obstack, &dummy, sizeof (rtx));
call_insns = (rtx *) obstack_finish (&call_obstack);
obstack_grow (&normal_obstack, &dummy, sizeof (rtx));
normal_insns = (rtx *) obstack_finish (&normal_obstack);
- printf ("\n#ifndef NO_MD_PROTOTYPES\n");
for (insn_ptr = normal_insns; *insn_ptr; insn_ptr++)
gen_proto (*insn_ptr);
gen_nonproto (*insn_ptr);
printf ("#endif /* !MD_CALL_PROTOTYPES */\n");
- printf ("\n#else /* NO_MD_PROTOTYPES */\n");
- for (insn_ptr = normal_insns; *insn_ptr; insn_ptr++)
- gen_nonproto (*insn_ptr);
-
- for (insn_ptr = call_insns; *insn_ptr; insn_ptr++)
- gen_nonproto (*insn_ptr);
-
- printf ("#endif /* NO_MD_PROTOTYPES */\n");
fflush (stdout);
- exit (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);
- /* NOTREACHED */
- return 0;
+ return (ferror (stdout) != 0 ? FATAL_EXIT_CODE : 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;
}