/* Generate from machine description:
- some #define configuration flags.
- Copyright (C) 1987, 1991, 1997, 1998,
- 1999, 2000 Free Software Foundation, Inc.
+ Copyright (C) 1987, 1991, 1997, 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 "errors.h"
#include "gensupport.h"
/* Maximum number of insns seen in a split. */
static int max_insns_per_split = 1;
+/* Maximum number of input insns for peephole2. */
+static int max_insns_per_peep2;
+
static int clobbers_seen_this_insn;
static int dup_operands_seen_this_insn;
-static void walk_insn_part PARAMS ((rtx, int, int));
-static void gen_insn PARAMS ((rtx));
-static void gen_expand PARAMS ((rtx));
-static void gen_split PARAMS ((rtx));
-static void gen_peephole PARAMS ((rtx));
+static void walk_insn_part (rtx, int, int);
+static void gen_insn (rtx);
+static void gen_expand (rtx);
+static void gen_split (rtx);
+static void gen_peephole (rtx);
+static void gen_peephole2 (rtx);
-/* RECOG_P will be non-zero if this pattern was seen in a context where it will
+/* RECOG_P will be nonzero if this pattern was seen in a context where it will
be used to recognize, rather than just generate an insn.
- NON_PC_SET_SRC will be non-zero if this pattern was seen in a SET_SRC
+ NON_PC_SET_SRC will be nonzero if this pattern was seen in a SET_SRC
of a SET whose destination is not (pc). */
static void
-walk_insn_part (part, recog_p, non_pc_set_src)
- rtx part;
- int recog_p;
- int non_pc_set_src;
+walk_insn_part (rtx part, int recog_p, int non_pc_set_src)
{
- register int i, j;
- register RTX_CODE code;
- register const char *format_ptr;
+ int i, j;
+ RTX_CODE code;
+ const char *format_ptr;
if (part == 0)
return;
break;
case LABEL_REF:
- if (GET_CODE (XEXP (part, 0)) == MATCH_OPERAND)
+ if (GET_CODE (XEXP (part, 0)) == MATCH_OPERAND
+ || GET_CODE (XEXP (part, 0)) == MATCH_DUP)
break;
return;
}
static void
-gen_insn (insn)
- rtx insn;
+gen_insn (rtx insn)
{
int i;
/* Similar but scan a define_expand. */
static void
-gen_expand (insn)
- rtx insn;
+gen_expand (rtx insn)
{
int i;
/* Similar but scan a define_split. */
static void
-gen_split (split)
- rtx split;
+gen_split (rtx split)
{
int i;
}
static void
-gen_peephole (peep)
- rtx peep;
+gen_peephole (rtx peep)
{
int i;
for (i = 0; i < XVECLEN (peep, 0); i++)
walk_insn_part (XVECEXP (peep, 0, i), 1, 0);
}
-\f
-PTR
-xmalloc (size)
- size_t size;
-{
- register PTR val = (PTR) malloc (size);
- if (val == 0)
- fatal ("virtual memory exhausted");
+static void
+gen_peephole2 (rtx peep)
+{
+ int i, n;
- return val;
-}
+ /* Look through the patterns that are matched
+ to compute the maximum operand number. */
+ for (i = XVECLEN (peep, 0) - 1; i >= 0; --i)
+ walk_insn_part (XVECEXP (peep, 0, i), 1, 0);
-PTR
-xrealloc (old, size)
- PTR old;
- size_t size;
-{
- register PTR ptr;
- if (old)
- ptr = (PTR) realloc (old, size);
- else
- ptr = (PTR) malloc (size);
- if (!ptr)
- fatal ("virtual memory exhausted");
- return ptr;
+ /* Look at the number of insns this insn can be matched from. */
+ for (i = XVECLEN (peep, 0) - 1, n = 0; i >= 0; --i)
+ if (GET_CODE (XVECEXP (peep, 0, i)) != MATCH_DUP
+ && GET_CODE (XVECEXP (peep, 0, i)) != MATCH_SCRATCH)
+ n++;
+ if (n > max_insns_per_peep2)
+ max_insns_per_peep2 = n;
}
-extern int main PARAMS ((int, char **));
-
int
-main (argc, argv)
- int argc;
- char **argv;
+main (int argc, char **argv)
{
rtx desc;
progname = "genconfig";
- if (argc <= 1)
- fatal ("No input file name.");
-
- 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 `genconfig'\n\
-from the machine description file `md'. */\n\n");
+ puts ("/* Generated automatically by the program `genconfig'");
+ puts (" from the machine description file `md'. */\n");
+ puts ("#ifndef GCC_INSN_CONFIG_H");
+ puts ("#define GCC_INSN_CONFIG_H\n");
- /* Allow at least 10 operands for the sake of asm constructs. */
- max_recog_operands = 9; /* We will add 1 later. */
+ /* Allow at least 30 operands for the sake of asm constructs. */
+ /* ??? We *really* ought to reorganize things such that there
+ is no fixed upper bound. */
+ max_recog_operands = 29; /* We will add 1 later. */
max_dup_operands = 1;
/* Read the machine description. */
case DEFINE_PEEPHOLE2:
have_peephole2_flag = 1;
- gen_split (desc);
+ gen_peephole2 (desc);
break;
case DEFINE_PEEPHOLE:
}
}
- printf ("\n#define MAX_RECOG_OPERANDS %d\n", max_recog_operands + 1);
-
- printf ("\n#define MAX_DUP_OPERANDS %d\n", max_dup_operands);
+ printf ("#define MAX_RECOG_OPERANDS %d\n", max_recog_operands + 1);
+ printf ("#define MAX_DUP_OPERANDS %d\n", max_dup_operands);
/* This is conditionally defined, in case the user writes code which emits
more splits than we can readily see (and knows s/he does it). */
printf ("#endif\n");
if (have_cc0_flag)
- printf ("#define HAVE_cc0 1\n");
+ {
+ printf ("#define HAVE_cc0 1\n");
+ printf ("#define CC0_P(X) ((X) == cc0_rtx)\n");
+ }
+ else
+ {
+ /* We output CC0_P this way to make sure that X is declared
+ somewhere. */
+ printf ("#define CC0_P(X) ((X) ? 0 : 0)\n");
+ }
if (have_cmove_flag)
printf ("#define HAVE_conditional_move 1\n");
printf ("#define HAVE_peephole 1\n");
if (have_peephole2_flag)
- printf ("#define HAVE_peephole2 1\n");
+ {
+ printf ("#define HAVE_peephole2 1\n");
+ printf ("#define MAX_INSNS_PER_PEEP2 %d\n", max_insns_per_peep2);
+ }
- fflush (stdout);
- return (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);
-}
+ puts("\n#endif /* GCC_INSN_CONFIG_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 (ferror (stdout) || fflush (stdout) || fclose (stdout))
+ return FATAL_EXIT_CODE;
+
+ return SUCCESS_EXIT_CODE;
}
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