/* Generate code from machine description to perform peephole optimizations.
- Copyright (C) 1987, 89, 92, 97, 98, 1999 Free Software Foundation, Inc.
+ Copyright (C) 1987, 1989, 1992, 1997, 1998,
+ 1999, 2000 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 2, 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 COPYING. If not, write to the Free
+Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+02111-1307, USA. */
#include "hconfig.h"
#include "system.h"
#include "rtl.h"
-#include "obstack.h"
#include "errors.h"
+#include "gensupport.h"
-static struct obstack obstack;
-struct obstack *rtl_obstack = &obstack;
-
-#define obstack_chunk_alloc xmalloc
-#define obstack_chunk_free free
-
-/* Define this so we can link with print-rtl.o to get debug_rtx function. */
-char **insn_name_ptr = 0;
/* While tree-walking an instruction pattern, we keep a chain
of these `struct link's to record how to get down to the
static int insn_code_number = 0;
-static void gen_peephole PROTO((rtx));
-static void match_rtx PROTO((rtx, struct link *, int));
-static void print_path PROTO((struct link *));
-static void print_code PROTO((RTX_CODE));
+static void gen_peephole PARAMS ((rtx));
+static void match_rtx PARAMS ((rtx, struct link *, int));
+static void print_path PARAMS ((struct link *));
+static void print_code PARAMS ((RTX_CODE));
\f
static void
gen_peephole (peep)
/* Walk the insn's pattern, remembering at all times the path
down to the walking point. */
- match_rtx (XVECEXP (peep, 0, i), NULL_PTR, insn_code_number);
+ match_rtx (XVECEXP (peep, 0, i), NULL, insn_code_number);
}
/* We get this far if the pattern matches.
{
register const char *p1;
for (p1 = GET_RTX_NAME (code); *p1; p1++)
- {
- if (ISLOWER(*p1))
- putchar (toupper(*p1));
- else
- putchar (*p1);
- }
+ putchar (TOUPPER(*p1));
}
-\f
-PTR
-xmalloc (size)
- size_t size;
-{
- register PTR val = (PTR) malloc (size);
- if (val == 0)
- fatal ("virtual memory exhausted");
- return val;
-}
-
-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;
-}
+extern int main PARAMS ((int, char **));
int
main (argc, argv)
char **argv;
{
rtx desc;
- FILE *infile;
- register int c;
max_opno = -1;
progname = "genpeep";
- obstack_init (rtl_obstack);
if (argc <= 1)
fatal ("No input file name.");
- infile = fopen (argv[1], "r");
- if (infile == 0)
- {
- perror (argv[1]);
- exit (FATAL_EXIT_CODE);
- }
+ if (init_md_reader (argv[1]) != SUCCESS_EXIT_CODE)
+ return (FATAL_EXIT_CODE);
printf ("/* Generated automatically by the program `genpeep'\n\
from the machine description file `md'. */\n\n");
printf ("#include \"system.h\"\n");
printf ("#include \"insn-config.h\"\n");
printf ("#include \"rtl.h\"\n");
+ printf ("#include \"tm_p.h\"\n");
printf ("#include \"regs.h\"\n");
printf ("#include \"output.h\"\n");
printf ("#include \"real.h\"\n");
while (1)
{
- c = read_skip_spaces (infile);
- if (c == EOF)
+ int line_no, rtx_number = 0;
+
+ desc = read_md_rtx (&line_no, &rtx_number);
+ if (desc == NULL)
break;
- ungetc (c, infile);
- desc = read_rtx (infile);
- if (GET_CODE (desc) == DEFINE_PEEPHOLE)
+ if (GET_CODE (desc) == DEFINE_PEEPHOLE)
{
gen_peephole (desc);
insn_code_number++;
}
if (GET_CODE (desc) == DEFINE_INSN
|| GET_CODE (desc) == DEFINE_EXPAND
- || GET_CODE (desc) == DEFINE_SPLIT)
+ || GET_CODE (desc) == DEFINE_SPLIT
+ || GET_CODE (desc) == DEFINE_PEEPHOLE2)
{
insn_code_number++;
}
printf ("#endif\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;
}
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