X-Git-Url: http://git.sourceforge.jp/view?p=pf3gnuchains%2Fgcc-fork.git;a=blobdiff_plain;f=gcc%2Fgenpeep.c;h=282fdcb0f73e7053fdc68985013d74002bfc88b1;hp=10f75d1caab9dc5d90a489c2f1c6acad8a25b488;hb=1f4a1e65128950be310e55b5f93bd0fc3840a7a1;hpb=1bb047289a4a7728316db4052deed7dc8c119dbc
diff --git a/gcc/genpeep.c b/gcc/genpeep.c
index 10f75d1caab..282fdcb0f73 100644
--- a/gcc/genpeep.c
+++ b/gcc/genpeep.c
@@ -1,36 +1,32 @@
/* Generate code from machine description to perform peephole optimizations.
- Copyright (C) 1987, 1989, 1992 Free Software Foundation, Inc.
+ Copyright (C) 1987, 1989, 1992, 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, 675 Mass Ave, Cambridge, MA 02139, USA. */
+along with GCC; see the file COPYING3. If not see
+. */
-#include
-#include "config.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
-
-extern void free ();
-extern rtx read_rtx ();
/* While tree-walking an instruction pattern, we keep a chain
of these `struct link's to record how to get down to the
@@ -45,12 +41,6 @@ struct link
int vecelt;
};
-char *xmalloc ();
-static void match_rtx ();
-static void gen_exp ();
-static void fatal ();
-void fancy_abort ();
-
static int max_opno;
/* Number of operands used in current peephole definition. */
@@ -62,12 +52,13 @@ static int n_operands;
static int insn_code_number = 0;
-static void print_path ();
-static void print_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);
static void
-gen_peephole (peep)
- rtx peep;
+gen_peephole (rtx peep)
{
int ninsns = XVECLEN (peep, 0);
int i;
@@ -75,9 +66,6 @@ gen_peephole (peep)
n_operands = 0;
printf (" insn = ins1;\n");
-#if 0
- printf (" want_jump = 0;\n");
-#endif
for (i = 0; i < ninsns; i++)
{
@@ -86,27 +74,22 @@ gen_peephole (peep)
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.
@@ -122,16 +105,7 @@ gen_peephole (peep)
So use a simple regular form: a PARALLEL containing a vector
of all the operands. */
- 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
+ printf (" PATTERN (ins1) = gen_rtx_PARALLEL (VOIDmode, gen_rtvec_v (%d, operands));\n", n_operands);
/* Record this define_peephole's insn code in the insn,
as if it had been recognized to match this. */
@@ -150,15 +124,12 @@ gen_peephole (peep)
}
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 char *fmt;
+ RTX_CODE code;
+ int i;
+ int len;
+ const char *fmt;
struct link link;
if (x == 0)
@@ -186,6 +157,7 @@ match_rtx (x, path, fail_label)
return;
case MATCH_DUP:
+ case MATCH_PAR_DUP:
printf (" x = ");
print_path (path);
printf (";\n");
@@ -262,6 +234,9 @@ match_rtx (x, path, fail_label)
case ADDRESS:
match_rtx (XEXP (x, 0), path, fail_label);
return;
+
+ default:
+ break;
}
printf (" x = ");
@@ -311,6 +286,20 @@ match_rtx (x, path, fail_label)
printf (" if (XINT (x, %d) != %d) goto L%d;\n",
i, XINT (x, i), fail_label);
}
+ else if (fmt[i] == 'w')
+ {
+ /* Make sure that at run time `x' is the RTX we want to test. */
+ if (i != 0)
+ {
+ printf (" x = ");
+ print_path (path);
+ printf (";\n");
+ }
+
+ printf (" if (XWINT (x, %d) != ", i);
+ printf (HOST_WIDE_INT_PRINT_DEC, XWINT (x, i));
+ printf (") goto L%d;\n", fail_label);
+ }
else if (fmt[i] == 's')
{
/* Make sure that at run time `x' is the RTX we want to test. */
@@ -332,8 +321,7 @@ match_rtx (x, path, fail_label)
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");
@@ -352,124 +340,78 @@ print_path (path)
}
static void
-print_code (code)
- RTX_CODE code;
+print_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);
- }
-}
-
-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 (s, a1, a2)
- char *s;
-{
- fprintf (stderr, "genpeep: ");
- fprintf (stderr, s, a1, a2);
- 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 (int, char **);
-void
-fancy_abort ()
-{
- fatal ("Internal gcc abort.");
-}
-
int
-main (argc, argv)
- int argc;
- char **argv;
+main (int argc, char **argv)
{
rtx desc;
- FILE *infile;
- register int c;
max_opno = -1;
- obstack_init (rtl_obstack);
-
- if (argc <= 1)
- fatal ("No input file name.");
+ progname = "genpeep";
- 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 \"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\n");
-
+ printf ("#include \"real.h\"\n");
+ printf ("#include \"recog.h\"\n");
+ printf ("#include \"except.h\"\n");
+ printf ("#include \"function.h\"\n");
+ printf ("#include \"toplev.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 insn, x, pat;\n");
- printf (" int i;\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. */
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++;
}
@@ -481,9 +423,8 @@ from the machine description file `md'. */\n\n");
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);
}