/* Generate code from machine description to perform peephole optimizations.
- Copyright (C) 1987, 1989, 1992, 1997, 1998,
- 1999, 2000 Free Software Foundation, Inc.
+ Copyright (C) 1987, 1989, 1992, 1997, 1998, 1999, 2000, 2003, 2004,
+ 2007, 2010 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"
-static struct obstack obstack;
-struct obstack *rtl_obstack = &obstack;
-
-#define obstack_chunk_alloc xmalloc
-#define obstack_chunk_free free
/* 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 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));
+static void gen_peephole (rtx);
+static void match_rtx (rtx, struct link *, int);
+static void print_path (struct link *);
+static void print_code (RTX_CODE);
\f
static void
-gen_peephole (peep)
- rtx peep;
+gen_peephole (rtx peep)
{
int ninsns = XVECLEN (peep, 0);
int i;
n_operands = 0;
printf (" insn = ins1;\n");
-#if 0
- printf (" want_jump = 0;\n");
-#endif
for (i = 0; i < ninsns; i++)
{
printf (" do { insn = NEXT_INSN (insn);\n");
printf (" if (insn == 0) goto L%d; }\n",
insn_code_number);
- printf (" while (GET_CODE (insn) == NOTE\n");
- printf ("\t || (GET_CODE (insn) == INSN\n");
+ printf (" while (NOTE_P (insn)\n");
+ printf ("\t || (NONJUMP_INSN_P (insn)\n");
printf ("\t && (GET_CODE (PATTERN (insn)) == USE\n");
printf ("\t\t || GET_CODE (PATTERN (insn)) == CLOBBER)));\n");
- printf (" if (GET_CODE (insn) == CODE_LABEL\n\
- || GET_CODE (insn) == BARRIER)\n goto L%d;\n",
- insn_code_number);
+ printf (" if (LABEL_P (insn)\n\
+ || BARRIER_P (insn))\n goto L%d;\n",
+ insn_code_number);
}
-#if 0
- printf (" if (GET_CODE (insn) == JUMP_INSN)\n");
- printf (" want_jump = JUMP_LABEL (insn);\n");
-#endif
-
printf (" pat = PATTERN (insn);\n");
/* 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 (" PATTERN (ins1) = gen_rtx_PARALLEL (VOIDmode, gen_rtvec_v (%d, operands));\n", n_operands);
-#if 0
- 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 (" ins1 = ins2;\n");
- printf (" }\n");
-#endif
-
/* Record this define_peephole's insn code in the insn,
as if it had been recognized to match this. */
printf (" INSN_CODE (ins1) = %d;\n",
}
\f
static void
-match_rtx (x, path, fail_label)
- rtx x;
- struct link *path;
- int fail_label;
+match_rtx (rtx x, struct link *path, int fail_label)
{
- register RTX_CODE code;
- register int i;
- register int len;
- register const char *fmt;
+ RTX_CODE code;
+ int i;
+ int len;
+ const char *fmt;
struct link link;
if (x == 0)
case ADDRESS:
match_rtx (XEXP (x, 0), path, fail_label);
return;
-
+
default:
break;
}
evaluate to the rtx at that point. */
static void
-print_path (path)
- struct link *path;
+print_path (struct link *path)
{
if (path == 0)
printf ("pat");
}
\f
static void
-print_code (code)
- RTX_CODE code;
+print_code (RTX_CODE code)
{
- register const char *p1;
+ const char *p1;
for (p1 = GET_RTX_NAME (code); *p1; 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 **));
+extern int main (int, char **);
int
-main (argc, argv)
- int argc;
- char **argv;
+main (int argc, char **argv)
{
rtx desc;
max_opno = -1;
progname = "genpeep";
- obstack_init (rtl_obstack);
- if (argc <= 1)
- fatal ("No input file name.");
-
- if (init_md_reader (argv[1]) != SUCCESS_EXIT_CODE)
+ if (!init_rtx_reader_args (argc, argv))
return (FATAL_EXIT_CODE);
printf ("/* Generated automatically by the program `genpeep'\n\
printf ("#include \"config.h\"\n");
printf ("#include \"system.h\"\n");
+ printf ("#include \"coretypes.h\"\n");
+ printf ("#include \"tm.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 ("#include \"except.h\"\n");
+ printf ("#include \"function.h\"\n");
+ printf ("#include \"diagnostic-core.h\"\n");
+ printf ("#include \"flags.h\"\n");
+ printf ("#include \"tm-constrs.h\"\n\n");
printf ("#ifdef HAVE_peephole\n");
printf ("extern rtx peep_operand[];\n\n");
printf ("#define operands peep_operand\n\n");
- printf ("rtx\npeephole (ins1)\n rtx ins1;\n{\n");
+ printf ("rtx\npeephole (rtx ins1)\n{\n");
printf (" rtx insn ATTRIBUTE_UNUSED, x ATTRIBUTE_UNUSED, pat ATTRIBUTE_UNUSED;\n\n");
/* Early out: no peepholes for insns followed by barriers. */
printf (" if (NEXT_INSN (ins1)\n");
- printf (" && GET_CODE (NEXT_INSN (ins1)) == BARRIER)\n");
+ printf (" && BARRIER_P (NEXT_INSN (ins1)))\n");
printf (" return 0;\n\n");
/* Read the machine description. */
}
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++;
}
fflush (stdout);
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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