/* 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 GNU CC.
+This file is part of GCC.
-GNU CC 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 version.
+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 3, or (at your option) any later
+version.
-GNU CC is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+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 GNU CC; 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 "hconfig.h"
+#include "bconfig.h"
#include "system.h"
+#include "coretypes.h"
+#include "tm.h"
#include "rtl.h"
#include "obstack.h"
#include "errors.h"
#include "gensupport.h"
-
-#define obstack_chunk_alloc xmalloc
-#define obstack_chunk_free free
-
/* Obstack to remember insns with. */
static struct obstack obstack;
/* 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 (int, rtx);
/* Count the number of match_operand's found. */
static void
-max_operand_1 (x)
- rtx x;
+max_operand_1 (rtx x)
{
- register RTX_CODE code;
- register int i;
- register int len;
- register const char *fmt;
+ RTX_CODE code;
+ int i;
+ int len;
+ const char *fmt;
if (x == 0)
return;
}
static int
-num_operands (insn)
- rtx insn;
+num_operands (rtx insn)
{
- register int len = XVECLEN (insn, 1);
- register int i;
+ int len = XVECLEN (insn, 1);
+ int i;
max_opno = -1;
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);
printf ("(%c))\n", i + 'A');
}
-/* Print out prototype information for a function. */
+/* Print out prototype information for a generator function. If the
+ insn pattern has been elided, print out a dummy generator that
+ does nothing. */
static void
-gen_proto (insn)
- rtx insn;
+gen_proto (rtx insn)
{
int num = num_operands (insn);
+ int i;
const char *name = XSTR (insn, 0);
+ int truth = maybe_eval_c_test (XSTR (insn, 2));
/* Many md files don't refer to the last two operands passed to the
call patterns. This means their generator functions will be two
gen_macro (name, num, 5);
}
- printf ("extern struct rtx_def *gen_%-*s PARAMS ((", max_id_len, name);
+ if (truth != 0)
+ printf ("extern rtx gen_%-*s (", max_id_len, name);
+ else
+ printf ("static inline rtx gen_%-*s (", max_id_len, name);
if (num == 0)
- printf ("void");
+ fputs ("void", stdout);
else
{
- while (num-- > 1)
- printf ("struct rtx_def *, ");
+ for (i = 1; i < num; i++)
+ fputs ("rtx, ", stdout);
- printf ("struct rtx_def *");
+ fputs ("rtx", stdout);
}
- printf ("));\n");
+ puts (");");
+
+ /* Some back ends want to take the address of generator functions,
+ so we cannot simply use #define for these dummy definitions. */
+ if (truth == 0)
+ {
+ printf ("static inline rtx\ngen_%s", name);
+ if (num > 0)
+ {
+ putchar ('(');
+ for (i = 0; i < num-1; i++)
+ printf ("rtx ARG_UNUSED (%c), ", 'a' + i);
+ printf ("rtx ARG_UNUSED (%c))\n", 'a' + i);
+ }
+ else
+ puts ("(void)");
+ puts ("{\n return 0;\n}");
+ }
}
static void
-gen_insn (insn)
- rtx insn;
+gen_insn (int line_no, rtx insn)
{
const char *name = XSTR (insn, 0);
const char *p;
+ const char *lt, *gt;
int len;
+ int truth = maybe_eval_c_test (XSTR (insn, 2));
+
+ lt = strchr (name, '<');
+ if (lt && strchr (lt + 1, '>'))
+ {
+ message_with_line (line_no, "unresolved iterator");
+ have_error = 1;
+ return;
+ }
+
+ gt = strchr (name, '>');
+ if (lt || gt)
+ {
+ message_with_line (line_no,
+ "unmatched angle brackets, likely "
+ "an error in iterator syntax");
+ have_error = 1;
+ return;
+ }
/* Don't mention instructions whose names are the null string
or begin with '*'. They are in the machine description just
if (len > max_id_len)
max_id_len = len;
- printf ("#define HAVE_%s ", name);
- if (strlen (XSTR (insn, 2)) == 0)
- printf ("1\n");
+ if (truth == 0)
+ /* Emit nothing. */;
+ else if (truth == 1)
+ printf ("#define HAVE_%s 1\n", name);
else
{
/* Write the macro definition, putting \'s at the end of each line,
if more than one. */
- printf ("(");
+ printf ("#define HAVE_%s (", name);
for (p = XSTR (insn, 2); *p; p++)
{
- if (*p == '\n')
- printf (" \\\n");
+ if (IS_VSPACE (*p))
+ fputs (" \\\n", stdout);
else
- printf ("%c", *p);
+ putchar (*p);
}
- printf (")\n");
+ fputs (")\n", stdout);
}
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;
progname = "genflags";
obstack_init (&obstack);
- if (argc <= 1)
- fatal ("No input file name.");
+ /* We need to see all the possibilities. Elided insns may have
+ direct calls to their generators in C code. */
+ insn_elision = 0;
- if (init_md_reader (argv[1]) != SUCCESS_EXIT_CODE)
+ if (init_md_reader_args (argc, argv) != SUCCESS_EXIT_CODE)
return (FATAL_EXIT_CODE);
-
- printf ("/* Generated automatically by the program `genflags'\n\
-from the machine description file `md'. */\n\n");
+
+ puts ("/* Generated automatically by the program `genflags'");
+ puts (" from the machine description file `md'. */\n");
+ puts ("#ifndef GCC_INSN_FLAGS_H");
+ puts ("#define GCC_INSN_FLAGS_H\n");
/* Read the machine description. */
if (desc == NULL)
break;
if (GET_CODE (desc) == DEFINE_INSN || GET_CODE (desc) == DEFINE_EXPAND)
- gen_insn (desc);
+ gen_insn (line_no, desc);
}
/* Print out the prototypes now. */
dummy = (rtx) 0;
obstack_grow (&obstack, &dummy, sizeof (rtx));
- insns = (rtx *) obstack_finish (&obstack);
+ insns = XOBFINISH (&obstack, rtx *);
- printf ("struct rtx_def;\n");
for (insn_ptr = insns; *insn_ptr; insn_ptr++)
gen_proto (*insn_ptr);
- fflush (stdout);
- return (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);
-}
+ puts("\n#endif /* GCC_INSN_FLAGS_H */");
-/* 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;
+ if (have_error || ferror (stdout) || fflush (stdout) || fclose (stdout))
+ return FATAL_EXIT_CODE;
+
+ return SUCCESS_EXIT_CODE;
}
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