/* Generate code from machine description to extract operands from insn as rtl.
- Copyright (C) 1987, 1991, 1992, 1993 Free Software Foundation, Inc.
+ Copyright (C) 1987, 91-93, 97-98, 1999 Free Software Foundation, Inc.
This file is part of GNU CC.
Boston, MA 02111-1307, USA. */
-#include <stdio.h>
#include "hconfig.h"
+#include "system.h"
#include "rtl.h"
#include "obstack.h"
#include "insn-config.h"
#define obstack_chunk_alloc xmalloc
#define obstack_chunk_free free
-extern void free ();
-extern rtx read_rtx ();
-
/* Names for patterns. Need to allow linking with print-rtl. */
char **insn_name_ptr;
static struct code_ptr *peepholes;
-static void walk_rtx ();
-static void print_path ();
-char *xmalloc ();
-char *xrealloc ();
-static void fatal ();
-static char *copystr ();
-static void mybzero ();
-void fancy_abort ();
+static void gen_insn PROTO ((rtx));
+static void walk_rtx PROTO ((rtx, const char *));
+static void print_path PROTO ((char *));
+static void fatal PVPROTO ((const char *, ...))
+ ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN;
+void fancy_abort PROTO ((void)) ATTRIBUTE_NORETURN;
\f
static void
gen_insn (insn)
dup_count = 0;
/* No operands seen so far in this pattern. */
- mybzero (oplocs, sizeof oplocs);
+ memset (oplocs, 0, sizeof oplocs);
/* Walk the insn's pattern, remembering at all times the path
down to the walking point. */
static void
walk_rtx (x, path)
rtx x;
- char *path;
+ const char *path;
{
register RTX_CODE code;
register int i;
register int len;
register char *fmt;
- register struct code_ptr *link;
int depth = strlen (path);
char *newpath;
case MATCH_OPERAND:
case MATCH_SCRATCH:
- oplocs[XINT (x, 0)] = copystr (path);
+ oplocs[XINT (x, 0)] = xstrdup (path);
op_count = MAX (op_count, XINT (x, 0) + 1);
break;
case MATCH_DUP:
case MATCH_PAR_DUP:
- duplocs[dup_count] = copystr (path);
+ duplocs[dup_count] = xstrdup (path);
dupnums[dup_count] = XINT (x, 0);
dup_count++;
break;
case MATCH_OP_DUP:
- duplocs[dup_count] = copystr (path);
+ duplocs[dup_count] = xstrdup (path);
dupnums[dup_count] = XINT (x, 0);
dup_count++;
return;
case MATCH_OPERATOR:
- oplocs[XINT (x, 0)] = copystr (path);
+ oplocs[XINT (x, 0)] = xstrdup (path);
op_count = MAX (op_count, XINT (x, 0) + 1);
newpath = (char *) alloca (depth + 2);
return;
case MATCH_PARALLEL:
- oplocs[XINT (x, 0)] = copystr (path);
+ oplocs[XINT (x, 0)] = xstrdup (path);
op_count = MAX (op_count, XINT (x, 0) + 1);
newpath = (char *) alloca (depth + 2);
case ADDRESS:
walk_rtx (XEXP (x, 0), path);
return;
+
+ default:
+ break;
}
newpath = (char *) alloca (depth + 2);
register int len = strlen (path);
register int i;
+ if (len == 0)
+ {
+ /* Don't emit "pat", since we may try to take the address of it,
+ which isn't what is intended. */
+ printf("PATTERN (insn)");
+ return;
+ }
+
/* We first write out the operations (XEXP or XVECEXP) in reverse
order, then write "insn", then the indices in forward order. */
}
}
\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;
+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, "genextract: ");
- fprintf (stderr, s, a1, a2);
+ vfprintf (stderr, format, ap);
+ va_end (ap);
fprintf (stderr, "\n");
exit (FATAL_EXIT_CODE);
}
fatal ("Internal gcc abort.");
}
-static char *
-copystr (s1)
- char *s1;
-{
- register char *tem;
-
- if (s1 == 0)
- return 0;
-
- tem = (char *) xmalloc (strlen (s1) + 1);
- strcpy (tem, s1);
-
- return tem;
-}
-
-static void
-mybzero (b, length)
- register char *b;
- register unsigned length;
+char *
+xstrdup (input)
+ const char *input;
{
- while (length-- > 0)
- *b++ = 0;
+ register size_t len = strlen (input) + 1;
+ register char *output = xmalloc (len);
+ memcpy (output, input, len);
+ return output;
}
\f
int
from the machine description file `md'. */\n\n");
printf ("#include \"config.h\"\n");
- printf ("#include \"rtl.h\"\n\n");
+ printf ("#include \"system.h\"\n");
+ printf ("#include \"rtl.h\"\n");
+ printf ("#include \"insn-config.h\"\n");
+ printf ("#include \"recog.h\"\n");
+ printf ("#include \"toplev.h\"\n\n");
/* This variable exists only so it can be the "location"
of any missing operand whose numbers are skipped by a given pattern. */
- printf ("static rtx junk;\n");
-
- printf ("extern rtx recog_operand[];\n");
- printf ("extern rtx *recog_operand_loc[];\n");
- printf ("extern rtx *recog_dup_loc[];\n");
- printf ("extern char recog_dup_num[];\n");
+ printf ("static rtx junk ATTRIBUTE_UNUSED;\n");
printf ("void\ninsn_extract (insn)\n");
printf (" rtx insn;\n");
printf (" register rtx *ro = recog_operand;\n");
printf (" register rtx **ro_loc = recog_operand_loc;\n");
printf (" rtx pat = PATTERN (insn);\n");
+ printf (" int i ATTRIBUTE_UNUSED;\n\n");
+ printf (" memset (ro, 0, sizeof (*ro) * MAX_RECOG_OPERANDS);\n");
+ printf (" memset (ro_loc, 0, sizeof (*ro_loc) * MAX_RECOG_OPERANDS);\n");
printf (" switch (INSN_CODE (insn))\n");
printf (" {\n");
printf (" case -1:\n");
/* The vector in the insn says how many operands it has.
And all it contains are operands. In fact, the vector was
created just for the sake of this function. */
- printf ("#if __GNUC__ > 1 && !defined (bcopy)\n");
- printf ("#define bcopy(FROM,TO,COUNT) __builtin_memcpy(TO,FROM,COUNT)\n");
- printf ("#endif\n");
- printf (" bcopy (&XVECEXP (pat, 0, 0), ro,\n");
- printf (" sizeof (rtx) * XVECLEN (pat, 0));\n");
+ printf (" for (i = XVECLEN (pat, 0) - 1; i >= 0; i--)\n");
+ printf (" ro[i] = XVECEXP (pat, 0, i);\n");
printf (" break;\n\n");
}
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