/* Generate code from to output assembler insns as recognized from rtl.
- Copyright (C) 1987, 1988, 1992, 1994, 1995, 1997, 1998, 1999, 2000
- Free Software Foundation, Inc.
+ Copyright (C) 1987, 1988, 1992, 1994, 1995, 1997, 1998, 1999, 2000, 2002,
+ 2003, 2004 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. */
/* This program reads the machine description for the compiler target machine
insn_data[24].template to be "clrd %0", and
insn_data[24].n_operands to be 1. */
\f
-#include "hconfig.h"
+#include "bconfig.h"
#include "system.h"
+#include "coretypes.h"
+#include "tm.h"
#include "rtl.h"
#include "errors.h"
#include "gensupport.h"
#define MAX_MAX_OPERANDS 40
-static int n_occurrences PARAMS ((int, const char *));
-static const char *strip_whitespace PARAMS ((const char *));
+static int n_occurrences (int, const char *);
+static const char *strip_whitespace (const char *);
/* insns in the machine description are assigned sequential code numbers
that are used by insn-recog.c (produced by genrecog) to communicate
static struct data *idata, **idata_end = &idata;
\f
-static void output_prologue PARAMS ((void));
-static void output_predicate_decls PARAMS ((void));
-static void output_operand_data PARAMS ((void));
-static void output_insn_data PARAMS ((void));
-static void output_get_insn_name PARAMS ((void));
-static void scan_operands PARAMS ((struct data *, rtx, int, int));
-static int compare_operands PARAMS ((struct operand_data *,
- struct operand_data *));
-static void place_operands PARAMS ((struct data *));
-static void process_template PARAMS ((struct data *, const char *));
-static void validate_insn_alternatives PARAMS ((struct data *));
-static void validate_insn_operands PARAMS ((struct data *));
-static void gen_insn PARAMS ((rtx, int));
-static void gen_peephole PARAMS ((rtx, int));
-static void gen_expand PARAMS ((rtx, int));
-static void gen_split PARAMS ((rtx, int));
+static void output_prologue (void);
+static void output_operand_data (void);
+static void output_insn_data (void);
+static void output_get_insn_name (void);
+static void scan_operands (struct data *, rtx, int, int);
+static int compare_operands (struct operand_data *,
+ struct operand_data *);
+static void place_operands (struct data *);
+static void process_template (struct data *, const char *);
+static void validate_insn_alternatives (struct data *);
+static void validate_insn_operands (struct data *);
+static void gen_insn (rtx, int);
+static void gen_peephole (rtx, int);
+static void gen_expand (rtx, int);
+static void gen_split (rtx, int);
+static void check_constraint_len (void);
+static int constraint_len (const char *, int);
\f
const char *
-get_insn_name (index)
- int index;
+get_insn_name (int index)
{
static char buf[100];
}
static void
-output_prologue ()
+output_prologue (void)
{
printf ("/* Generated automatically by the program `genoutput'\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 \"flags.h\"\n");
printf ("#include \"ggc.h\"\n");
printf ("#include \"rtl.h\"\n");
+ printf ("#include \"expr.h\"\n");
+ printf ("#include \"insn-codes.h\"\n");
printf ("#include \"tm_p.h\"\n");
printf ("#include \"function.h\"\n");
printf ("#include \"regs.h\"\n");
printf ("#include \"real.h\"\n");
printf ("#include \"insn-config.h\"\n\n");
printf ("#include \"conditions.h\"\n");
- printf ("#include \"insn-flags.h\"\n");
printf ("#include \"insn-attr.h\"\n\n");
- printf ("#include \"insn-codes.h\"\n\n");
printf ("#include \"recog.h\"\n\n");
printf ("#include \"toplev.h\"\n");
printf ("#include \"output.h\"\n");
+ printf ("#include \"target.h\"\n");
}
-
-/* We need to define all predicates used. Keep a list of those we
- have defined so far. There normally aren't very many predicates
- used, so a linked list should be fast enough. */
-struct predicate { const char *name; struct predicate *next; };
-
static void
-output_predicate_decls ()
+output_operand_data (void)
{
- struct predicate *predicates = 0;
- register struct operand_data *d;
- struct predicate *p, *next;
-
- for (d = odata; d; d = d->next)
- if (d->predicate && d->predicate[0])
- {
- for (p = predicates; p; p = p->next)
- if (strcmp (p->name, d->predicate) == 0)
- break;
-
- if (p == 0)
- {
- printf ("extern int %s PARAMS ((rtx, enum machine_mode));\n",
- d->predicate);
- p = (struct predicate *) xmalloc (sizeof (struct predicate));
- p->name = d->predicate;
- p->next = predicates;
- predicates = p;
- }
- }
-
- printf ("\n\n");
- for (p = predicates; p; p = next)
- {
- next = p->next;
- free (p);
- }
-}
-
-static void
-output_operand_data ()
-{
- register struct operand_data *d;
+ struct operand_data *d;
printf ("\nstatic const struct insn_operand_data operand_data[] = \n{\n");
}
static void
-output_insn_data ()
+output_insn_data (void)
{
- register struct data *d;
+ struct data *d;
int name_offset = 0;
int next_name_offset;
const char * last_name = 0;
const char * next_name = 0;
- register struct data *n;
+ struct data *n;
for (n = idata, next_name_offset = 1; n; n = n->next, next_name_offset++)
if (n->name)
break;
}
+ printf ("#if GCC_VERSION >= 2007\n__extension__\n#endif\n");
printf ("\nconst struct insn_data insn_data[] = \n{\n");
for (d = idata; d; d = d->next)
switch (d->output_format)
{
case INSN_OUTPUT_FORMAT_NONE:
- printf (" 0,\n");
+ printf ("#if HAVE_DESIGNATED_INITIALIZERS\n");
+ printf (" { 0 },\n");
+ printf ("#else\n");
+ printf (" { 0, 0, 0 },\n");
+ printf ("#endif\n");
break;
case INSN_OUTPUT_FORMAT_SINGLE:
{
const char *p = d->template;
char prev = 0;
-
+
+ printf ("#if HAVE_DESIGNATED_INITIALIZERS\n");
+ printf (" { .single =\n");
+ printf ("#else\n");
+ printf (" {\n");
+ printf ("#endif\n");
printf (" \"");
while (*p)
{
- if (*p == '\n' && prev != '\\')
- printf ("\\n\\\n");
+ if (IS_VSPACE (*p) && prev != '\\')
+ {
+ /* Preserve two consecutive \n's or \r's, but treat \r\n
+ as a single newline. */
+ if (*p == '\n' && prev != '\r')
+ printf ("\\n\\\n");
+ }
else
putchar (*p);
prev = *p;
++p;
}
printf ("\",\n");
+ printf ("#if HAVE_DESIGNATED_INITIALIZERS\n");
+ printf (" },\n");
+ printf ("#else\n");
+ printf (" 0, 0 },\n");
+ printf ("#endif\n");
}
break;
case INSN_OUTPUT_FORMAT_MULTI:
+ printf ("#if HAVE_DESIGNATED_INITIALIZERS\n");
+ printf (" { .multi = output_%d },\n", d->code_number);
+ printf ("#else\n");
+ printf (" { 0, output_%d, 0 },\n", d->code_number);
+ printf ("#endif\n");
+ break;
case INSN_OUTPUT_FORMAT_FUNCTION:
- printf (" (const PTR) output_%d,\n", d->code_number);
+ printf ("#if HAVE_DESIGNATED_INITIALIZERS\n");
+ printf (" { .function = output_%d },\n", d->code_number);
+ printf ("#else\n");
+ printf (" { 0, 0, output_%d },\n", d->code_number);
+ printf ("#endif\n");
break;
default:
abort ();
}
static void
-output_get_insn_name ()
+output_get_insn_name (void)
{
printf ("const char *\n");
- printf ("get_insn_name (code)\n");
- printf (" int code;\n");
+ printf ("get_insn_name (int code)\n");
printf ("{\n");
- printf (" return insn_data[code].name;\n");
+ printf (" if (code == NOOP_MOVE_INSN_CODE)\n");
+ printf (" return \"NOOP_MOVE\";\n");
+ printf (" else\n");
+ printf (" return insn_data[code].name;\n");
printf ("}\n");
}
static int num_dups;
static void
-scan_operands (d, part, this_address_p, this_strict_low)
- struct data *d;
- rtx part;
- int this_address_p;
- int this_strict_low;
+scan_operands (struct data *d, rtx part, int this_address_p,
+ int this_strict_low)
{
- register int i, j;
- register const char *format_ptr;
+ int i, j;
+ const char *format_ptr;
int opno;
if (part == 0)
case MATCH_OP_DUP:
case MATCH_PAR_DUP:
++num_dups;
- return;
+ break;
case ADDRESS:
scan_operands (d, XEXP (part, 0), 1, 0);
case STRICT_LOW_PART:
scan_operands (d, XEXP (part, 0), 0, 1);
return;
-
+
default:
break;
}
/* Compare two operands for content equality. */
static int
-compare_operands (d0, d1)
- struct operand_data *d0, *d1;
+compare_operands (struct operand_data *d0, struct operand_data *d1)
{
const char *p0, *p1;
find a subsequence that is the same, or allocate a new one at the end. */
static void
-place_operands (d)
- struct data *d;
+place_operands (struct data *d)
{
struct operand_data *od, *od2;
int i;
templates, or C code to generate the assembler code template. */
static void
-process_template (d, template)
- struct data *d;
- const char *template;
+process_template (struct data *d, const char *template)
{
- register const char *cp;
- register int i;
+ const char *cp;
+ int i;
/* Templates starting with * contain straight code to be run. */
if (template[0] == '*')
d->template = 0;
d->output_format = INSN_OUTPUT_FORMAT_FUNCTION;
- printf ("\nstatic const char *output_%d PARAMS ((rtx *, rtx));\n",
- d->code_number);
puts ("\nstatic const char *");
- printf ("output_%d (operands, insn)\n", d->code_number);
- puts (" rtx *operands ATTRIBUTE_UNUSED;");
- puts (" rtx insn ATTRIBUTE_UNUSED;");
+ printf ("output_%d (rtx *operands ATTRIBUTE_UNUSED, rtx insn ATTRIBUTE_UNUSED)\n",
+ d->code_number);
puts ("{");
puts (template + 1);
for (i = 0, cp = &template[1]; *cp; )
{
- while (*cp == '\n' || *cp == ' ' || *cp== '\t')
+ const char *ep, *sp;
+
+ while (ISSPACE (*cp))
cp++;
printf (" \"");
- while (*cp != '\n' && *cp != '\0')
+
+ for (ep = sp = cp; !IS_VSPACE (*ep) && *ep != '\0'; ++ep)
+ if (!ISSPACE (*ep))
+ sp = ep + 1;
+
+ if (sp != ep)
+ message_with_line (d->lineno,
+ "trailing whitespace in output template");
+
+ while (cp < sp)
{
putchar (*cp);
cp++;
if (i != d->n_alternatives)
{
message_with_line (d->lineno,
- "Wrong number of alternatives in the output template");
+ "wrong number of alternatives in the output template");
have_error = 1;
}
/* Check insn D for consistency in number of constraint alternatives. */
static void
-validate_insn_alternatives (d)
- struct data *d;
+validate_insn_alternatives (struct data *d)
{
- register int n = 0, start;
+ int n = 0, start;
/* Make sure all the operands have the same number of alternatives
in their constraints. Let N be that number. */
for (start = 0; start < d->n_operands; start++)
if (d->operand[start].n_alternatives > 0)
{
- if (n == 0)
+ int len, i;
+ const char *p;
+ char c;
+ int which_alternative = 0;
+ int alternative_count_unsure = 0;
+
+ for (p = d->operand[start].constraint; (c = *p); p += len)
+ {
+ len = CONSTRAINT_LEN (c, p);
+
+ if (len < 1 || (len > 1 && strchr (",#*+=&%!0123456789", c)))
+ {
+ message_with_line (d->lineno,
+ "invalid length %d for char '%c' in alternative %d of operand %d",
+ len, c, which_alternative, start);
+ len = 1;
+ have_error = 1;
+ }
+
+ if (c == ',')
+ {
+ which_alternative++;
+ continue;
+ }
+
+ for (i = 1; i < len; i++)
+ if (p[i] == '\0')
+ {
+ message_with_line (d->lineno,
+ "NUL in alternative %d of operand %d",
+ which_alternative, start);
+ alternative_count_unsure = 1;
+ break;
+ }
+ else if (strchr (",#*", p[i]))
+ {
+ message_with_line (d->lineno,
+ "'%c' in alternative %d of operand %d",
+ p[i], which_alternative, start);
+ alternative_count_unsure = 1;
+ }
+ }
+ if (alternative_count_unsure)
+ have_error = 1;
+ else if (n == 0)
n = d->operand[start].n_alternatives;
else if (n != d->operand[start].n_alternatives)
{
/* Verify that there are no gaps in operand numbers for INSNs. */
static void
-validate_insn_operands (d)
- struct data *d;
+validate_insn_operands (struct data *d)
{
int i;
a hairy output action, output a function for now. */
static void
-gen_insn (insn, lineno)
- rtx insn;
- int lineno;
+gen_insn (rtx insn, int lineno)
{
- register struct data *d = (struct data *) xmalloc (sizeof (struct data));
- register int i;
+ struct data *d = xmalloc (sizeof (struct data));
+ int i;
d->code_number = next_code_number;
d->index_number = next_index_number;
d->n_operands = max_opno + 1;
d->n_dups = num_dups;
+ check_constraint_len ();
validate_insn_operands (d);
validate_insn_alternatives (d);
place_operands (d);
- process_template (d, XSTR (insn, 3));
+ process_template (d, XTMPL (insn, 3));
}
\f
/* Look at a define_peephole just read. Assign its code number.
If the insn has a hairy output action, output it now. */
static void
-gen_peephole (peep, lineno)
- rtx peep;
- int lineno;
+gen_peephole (rtx peep, int lineno)
{
- register struct data *d = (struct data *) xmalloc (sizeof (struct data));
- register int i;
+ struct data *d = xmalloc (sizeof (struct data));
+ int i;
d->code_number = next_code_number;
d->index_number = next_index_number;
validate_insn_alternatives (d);
place_operands (d);
- process_template (d, XSTR (peep, 2));
+ process_template (d, XTMPL (peep, 2));
}
\f
/* Process a define_expand just read. Assign its code number,
only for the purposes of `insn_gen_function'. */
static void
-gen_expand (insn, lineno)
- rtx insn;
- int lineno;
+gen_expand (rtx insn, int lineno)
{
- register struct data *d = (struct data *) xmalloc (sizeof (struct data));
- register int i;
+ struct data *d = xmalloc (sizeof (struct data));
+ int i;
d->code_number = next_code_number;
d->index_number = next_index_number;
only for reasons of consistency and to simplify genrecog. */
static void
-gen_split (split, lineno)
- rtx split;
- int lineno;
+gen_split (rtx split, int lineno)
{
- register struct data *d = (struct data *) xmalloc (sizeof (struct data));
- register int i;
+ struct data *d = xmalloc (sizeof (struct data));
+ int i;
d->code_number = next_code_number;
d->index_number = next_index_number;
place_operands (d);
}
-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;
progname = "genoutput";
if (argc <= 1)
- fatal ("No input file name.");
+ fatal ("no input file name");
- if (init_md_reader (argv[1]) != SUCCESS_EXIT_CODE)
+ if (init_md_reader_args (argc, argv) != SUCCESS_EXIT_CODE)
return (FATAL_EXIT_CODE);
output_prologue ();
if (GET_CODE (desc) == DEFINE_EXPAND)
gen_expand (desc, line_no);
if (GET_CODE (desc) == DEFINE_SPLIT
- || GET_CODE (desc) == DEFINE_PEEPHOLE2)
+ || GET_CODE (desc) == DEFINE_PEEPHOLE2)
gen_split (desc, line_no);
next_index_number++;
}
printf("\n\n");
- output_predicate_decls ();
output_operand_data ();
output_insn_data ();
output_get_insn_name ();
-1 if S is the null string. */
static int
-n_occurrences (c, s)
- int c;
- const char *s;
+n_occurrences (int c, const char *s)
{
int n = 0;
Return a new string. */
static const char *
-strip_whitespace (s)
- const char *s;
+strip_whitespace (const char *s)
{
char *p, *q;
char ch;
*p = '\0';
return q;
}
+
+/* Verify that DEFAULT_CONSTRAINT_LEN is used properly and not
+ tampered with. This isn't bullet-proof, but it should catch
+ most genuine mistakes. */
+static void
+check_constraint_len (void)
+{
+ const char *p;
+ int d;
+
+ for (p = ",#*+=&%!1234567890"; *p; p++)
+ for (d = -9; d < 9; d++)
+ if (constraint_len (p, d) != d)
+ abort ();
+}
+
+static int
+constraint_len (const char *p, int genoutput_default_constraint_len)
+{
+ /* Check that we still match defaults.h . First we do a generation-time
+ check that fails if the value is not the expected one... */
+ if (DEFAULT_CONSTRAINT_LEN (*p, p) != 1)
+ abort ();
+ /* And now a compile-time check that should give a diagnostic if the
+ definition doesn't exactly match. */
+#define DEFAULT_CONSTRAINT_LEN(C,STR) 1
+ /* Now re-define DEFAULT_CONSTRAINT_LEN so that we can verify it is
+ being used. */
+#undef DEFAULT_CONSTRAINT_LEN
+#define DEFAULT_CONSTRAINT_LEN(C,STR) \
+ ((C) != *p || STR != p ? -1 : genoutput_default_constraint_len)
+ return CONSTRAINT_LEN (*p, p);
+ /* And set it back. */
+#undef DEFAULT_CONSTRAINT_LEN
+#define DEFAULT_CONSTRAINT_LEN(C,STR) 1
+}
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