/* Generate code from machine description to perform peephole optimizations.
- Copyright (C) 1987, 1989, 1992, 1997, 1998 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
int vecelt;
};
-char *xmalloc PROTO((unsigned));
-static void fatal PVPROTO ((char *, ...))
- ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN;
-void fancy_abort PROTO((void)) ATTRIBUTE_NORETURN;
-
static int max_opno;
/* Number of operands used in current peephole definition. */
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.
printf (" if (want_jump && GET_CODE (ins1) != JUMP_INSN)\n");
printf (" {\n");
printf (" rtx insn2 = emit_jump_insn_before (PATTERN (ins1), ins1);\n");
- printf (" delete_insn (ins1);\n");
+ printf (" delete_related_insns (ins1);\n");
printf (" ins1 = ins2;\n");
printf (" }\n");
#endif
struct link *path;
int fail_label;
{
- register RTX_CODE code;
- register int i;
- register int len;
- register char *fmt;
+ RTX_CODE code;
+ int i;
+ int len;
+ const char *fmt;
struct link link;
if (x == 0)
print_code (code)
RTX_CODE code;
{
- register char *p1;
+ const char *p1;
for (p1 = GET_RTX_NAME (code); *p1; p1++)
- {
- if (*p1 >= 'a' && *p1 <= 'z')
- putchar (*p1 + 'A' - 'a');
- else
- putchar (*p1);
- }
-}
-\f
-char *
-xmalloc (size)
- unsigned size;
-{
- register char *val = (char *) malloc (size);
-
- if (val == 0)
- fatal ("virtual memory exhausted");
- return val;
-}
-
-char *
-xrealloc (ptr, size)
- char *ptr;
- unsigned size;
-{
- char *result = (char *) realloc (ptr, size);
- if (!result)
- fatal ("virtual memory exhausted");
- return result;
-}
-
-static void
-fatal VPROTO ((char *format, ...))
-{
-#ifndef ANSI_PROTOTYPES
- char *format;
-#endif
- va_list ap;
-
- VA_START (ap, format);
-
-#ifndef ANSI_PROTOTYPES
- format = va_arg (ap, char *);
-#endif
-
- fprintf (stderr, "genpeep: ");
- vfprintf (stderr, format, ap);
- va_end (ap);
- fprintf (stderr, "\n");
- exit (FATAL_EXIT_CODE);
+ putchar (TOUPPER(*p1));
}
-/* 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;
char **argv;
{
rtx desc;
- FILE *infile;
- register int c;
max_opno = -1;
- obstack_init (rtl_obstack);
+ progname = "genpeep";
if (argc <= 1)
- fatal ("No input file name.");
+ fatal ("no input file name");
- infile = fopen (argv[1], "r");
- if (infile == 0)
- {
- perror (argv[1]);
- exit (FATAL_EXIT_CODE);
- }
-
- init_rtl ();
+ if (init_md_reader_args (argc, argv) != 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");
printf ("#include \"recog.h\"\n");
printf ("#include \"except.h\"\n\n");
+ printf ("#include \"function.h\"\n\n");
+ printf ("#ifdef HAVE_peephole\n");
printf ("extern rtx peep_operand[];\n\n");
printf ("#define operands peep_operand\n\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++;
}
max_opno = 1;
printf ("rtx peep_operand[%d];\n", max_opno + 1);
+ 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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