/* Generate code from machine description to perform peephole optimizations.
- Copyright (C) 1987, 1989, 1992 Free Software Foundation, Inc.
+ Copyright (C) 1987, 89, 92, 97, 98, 1999 Free Software Foundation, Inc.
This file is part of GNU CC.
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. */
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
-#include <stdio.h>
-#include "config.h"
+#include "hconfig.h"
+#include "system.h"
#include "rtl.h"
#include "obstack.h"
#define obstack_chunk_alloc xmalloc
#define obstack_chunk_free free
-extern void free ();
-extern rtx read_rtx ();
+/* 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 ();
-static void match_rtx ();
-static void gen_exp ();
-static void fatal ();
-void fancy_abort ();
+void fatal PVPROTO ((const char *, ...))
+ ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN;
static int max_opno;
static int insn_code_number = 0;
-static void print_path ();
-static void print_code ();
+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));
\f
static void
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);
+ 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");
register RTX_CODE code;
register int i;
register int len;
- register char *fmt;
+ register const char *fmt;
struct link link;
if (x == 0)
return;
case MATCH_DUP:
+ case MATCH_PAR_DUP:
printf (" x = ");
print_path (path);
printf (";\n");
case ADDRESS:
match_rtx (XEXP (x, 0), path, fail_label);
return;
+
+ default:
+ break;
}
printf (" x = ");
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. */
print_code (code)
RTX_CODE code;
{
- register char *p1;
+ register const char *p1;
for (p1 = GET_RTX_NAME (code); *p1; p1++)
{
if (*p1 >= 'a' && *p1 <= 'z')
}
}
\f
-char *
+PTR
xmalloc (size)
- unsigned size;
+ size_t size;
{
- register char *val = (char *) malloc (size);
+ register PTR val = (PTR) malloc (size);
if (val == 0)
fatal ("virtual memory exhausted");
return val;
}
-char *
-xrealloc (ptr, size)
- char *ptr;
- unsigned size;
+PTR
+xrealloc (old, size)
+ PTR old;
+ size_t size;
{
- char *result = (char *) realloc (ptr, size);
- if (!result)
+ register PTR ptr;
+ if (old)
+ ptr = (PTR) realloc (old, size);
+ else
+ ptr = (PTR) malloc (size);
+ if (!ptr)
fatal ("virtual memory exhausted");
- return result;
+ return ptr;
}
-static void
-fatal (s, a1, a2)
- char *s;
+void
+fatal VPROTO ((const char *format, ...))
{
+#ifndef ANSI_PROTOTYPES
+ const char *format;
+#endif
+ va_list ap;
+
+ VA_START (ap, format);
+
+#ifndef ANSI_PROTOTYPES
+ format = va_arg (ap, const char *);
+#endif
+
fprintf (stderr, "genpeep: ");
- fprintf (stderr, s, a1, a2);
+ vfprintf (stderr, format, ap);
+ va_end (ap);
fprintf (stderr, "\n");
exit (FATAL_EXIT_CODE);
}
-/* More 'friendly' abort that prints the line and file.
- config.h can #define abort fancy_abort if you like that sort of thing. */
-
-void
-fancy_abort ()
-{
- fatal ("Internal gcc abort.");
-}
-\f
int
main (argc, argv)
int argc;
from the machine description file `md'. */\n\n");
printf ("#include \"config.h\"\n");
+ printf ("#include \"system.h\"\n");
+ printf ("#include \"insn-config.h\"\n");
printf ("#include \"rtl.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\n");
+ printf ("#include \"function.h\"\n\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 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");
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