/* Generate code from to output assembler insns as recognized from rtl.
- Copyright (C) 1987, 88, 92, 94-95, 97-99, 2000
+ Copyright (C) 1987, 1988, 1992, 1994, 1995, 1997, 1998, 1999, 2000
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
#include "hconfig.h"
#include "system.h"
#include "rtl.h"
-#include "obstack.h"
#include "errors.h"
+#include "gensupport.h"
/* No instruction can have more operands than this. Sorry for this
arbitrary limit, but what machine will have an instruction with
#define MAX_MAX_OPERANDS 40
-static struct obstack obstack;
-struct obstack *rtl_obstack = &obstack;
-
-#define obstack_chunk_alloc xmalloc
-#define obstack_chunk_free free
-
-static int n_occurrences PARAMS ((int, char *));
+static int n_occurrences PARAMS ((int, const char *));
+static const char *strip_whitespace PARAMS ((const char *));
/* insns in the machine description are assigned sequential code numbers
that are used by insn-recog.c (produced by genrecog) to communicate
const char *template;
int code_number;
int index_number;
+ int lineno;
int n_operands; /* Number of operands this insn recognizes */
int n_dups; /* Number times match_dup appears in pattern */
int n_alternatives; /* Number of alternatives in each constraint */
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 *, char *));
+static void process_template PARAMS ((struct data *, const char *));
static void validate_insn_alternatives PARAMS ((struct data *));
-static void gen_insn PARAMS ((rtx));
-static void gen_peephole PARAMS ((rtx));
-static void gen_expand PARAMS ((rtx));
-static void gen_split PARAMS ((rtx));
-static int n_occurrences PARAMS ((int, char *));
+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));
\f
const char *
get_insn_name (index)
output_prologue ()
{
printf ("/* Generated automatically by the program `genoutput'\n\
-from the machine description file `md'. */\n\n");
+ from the machine description file `md'. */\n\n");
- printf ("#define NO_MD_PROTOTYPES\n");
printf ("#include \"config.h\"\n");
printf ("#include \"system.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");
/* 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 ()
{
- struct predicate { const char *name; struct predicate *next; } *predicates = 0;
+ struct predicate *predicates = 0;
register struct operand_data *d;
- struct predicate *p;
+ struct predicate *p, *next;
for (d = odata; d; d = d->next)
if (d->predicate && d->predicate[0])
{
printf ("extern int %s PARAMS ((rtx, enum machine_mode));\n",
d->predicate);
- p = (struct predicate *) alloca (sizeof (struct 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
printf (" 0,\n");
break;
case INSN_OUTPUT_FORMAT_SINGLE:
- printf (" \"%s\",\n", d->template);
+ {
+ const char *p = d->template;
+ char prev = 0;
+
+ printf (" \"");
+ while (*p)
+ {
+ if (*p == '\n' && prev != '\\')
+ printf ("\\n\\\n");
+ else
+ putchar (*p);
+ prev = *p;
+ ++p;
+ }
+ printf ("\",\n");
+ }
break;
case INSN_OUTPUT_FORMAT_MULTI:
case INSN_OUTPUT_FORMAT_FUNCTION:
}
if (d->name && d->name[0] != '*')
- printf (" gen_%s,\n", d->name);
+ printf (" (insn_gen_fn) gen_%s,\n", d->name);
else
printf (" 0,\n");
max_opno = opno;
if (max_opno >= MAX_MAX_OPERANDS)
{
- error ("Too many operands (%d) in definition %s.\n",
- max_opno + 1, get_insn_name (next_index_number));
+ message_with_line (d->lineno,
+ "maximum number of operands exceeded");
+ have_error = 1;
return;
}
if (d->operand[opno].seen)
- error ("Definition %s specified operand number %d more than once.\n",
- get_insn_name (next_index_number), opno);
+ {
+ message_with_line (d->lineno,
+ "repeated operand number %d\n", opno);
+ have_error = 1;
+ }
+
d->operand[opno].seen = 1;
d->operand[opno].mode = GET_MODE (part);
d->operand[opno].strict_low = this_strict_low;
d->operand[opno].predicate = XSTR (part, 1);
- d->operand[opno].constraint = XSTR (part, 2);
- if (XSTR (part, 2) != 0 && *XSTR (part, 2) != 0)
- d->operand[opno].n_alternatives
- = n_occurrences (',', XSTR (part, 2)) + 1;
+ d->operand[opno].constraint = strip_whitespace (XSTR (part, 2));
+ d->operand[opno].n_alternatives
+ = n_occurrences (',', d->operand[opno].constraint) + 1;
d->operand[opno].address_p = this_address_p;
d->operand[opno].eliminable = 1;
return;
max_opno = opno;
if (max_opno >= MAX_MAX_OPERANDS)
{
- error ("Too many operands (%d) in definition %s.\n",
- max_opno + 1, get_insn_name (next_index_number));
+ message_with_line (d->lineno,
+ "maximum number of operands exceeded");
+ have_error = 1;
return;
}
if (d->operand[opno].seen)
- error ("Definition %s specified operand number %d more than once.\n",
- get_insn_name (next_index_number), opno);
+ {
+ message_with_line (d->lineno,
+ "repeated operand number %d\n", opno);
+ have_error = 1;
+ }
+
d->operand[opno].seen = 1;
d->operand[opno].mode = GET_MODE (part);
d->operand[opno].strict_low = 0;
d->operand[opno].predicate = "scratch_operand";
- d->operand[opno].constraint = XSTR (part, 1);
- if (XSTR (part, 1) != 0 && *XSTR (part, 1) != 0)
- d->operand[opno].n_alternatives
- = n_occurrences (',', XSTR (part, 1)) + 1;
+ d->operand[opno].constraint = strip_whitespace (XSTR (part, 1));
+ d->operand[opno].n_alternatives
+ = n_occurrences (',', d->operand[opno].constraint) + 1;
d->operand[opno].address_p = 0;
d->operand[opno].eliminable = 0;
return;
max_opno = opno;
if (max_opno >= MAX_MAX_OPERANDS)
{
- error ("Too many operands (%d) in definition %s.\n",
- max_opno + 1, get_insn_name (next_index_number));
+ message_with_line (d->lineno,
+ "maximum number of operands exceeded");
+ have_error = 1;
return;
}
if (d->operand[opno].seen)
- error ("Definition %s specified operand number %d more than once.\n",
- get_insn_name (next_index_number), opno);
+ {
+ message_with_line (d->lineno,
+ "repeated operand number %d\n", opno);
+ have_error = 1;
+ }
+
d->operand[opno].seen = 1;
d->operand[opno].mode = GET_MODE (part);
d->operand[opno].strict_low = 0;
static void
process_template (d, template)
struct data *d;
- char *template;
+ const char *template;
{
- register char *cp;
+ register const char *cp;
register int i;
/* Templates starting with * contain straight code to be run. */
printf ("\",\n");
i++;
}
+ if (i == 1)
+ message_with_line (d->lineno,
+ "'@' is redundant for output template with single alternative");
+ if (i != d->n_alternatives)
+ {
+ message_with_line (d->lineno,
+ "Wrong number of alternatives in the output template");
+ have_error = 1;
+ }
printf ("};\n");
}
if (n == 0)
n = d->operand[start].n_alternatives;
else if (n != d->operand[start].n_alternatives)
- error ("wrong number of alternatives in operand %d of insn %s",
- start, get_insn_name (d->index_number));
+ {
+ message_with_line (d->lineno,
+ "wrong number of alternatives in operand %d",
+ start);
+ have_error = 1;
+ }
}
/* Record the insn's overall number of alternatives. */
d->n_alternatives = n;
}
+
+/* Verify that there are no gaps in operand numbers for INSNs. */
+
+static void
+validate_insn_operands (d)
+ struct data *d;
+{
+ int i;
+
+ for (i = 0; i < d->n_operands; ++i)
+ if (d->operand[i].seen == 0)
+ {
+ message_with_line (d->lineno, "missing operand %d", i);
+ have_error = 1;
+ }
+}
\f
/* Look at a define_insn just read. Assign its code number. Record
on idata the template and the number of arguments. If the insn has
a hairy output action, output a function for now. */
static void
-gen_insn (insn)
+gen_insn (insn, lineno)
rtx insn;
+ int lineno;
{
register struct data *d = (struct data *) xmalloc (sizeof (struct data));
register int i;
- d->code_number = next_code_number++;
+ d->code_number = next_code_number;
d->index_number = next_index_number;
+ d->lineno = lineno;
if (XSTR (insn, 0)[0])
d->name = XSTR (insn, 0);
else
d->n_operands = max_opno + 1;
d->n_dups = num_dups;
+ 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)
+gen_peephole (peep, lineno)
rtx peep;
+ int lineno;
{
register struct data *d = (struct data *) xmalloc (sizeof (struct data));
register int i;
- d->code_number = next_code_number++;
+ d->code_number = next_code_number;
d->index_number = next_index_number;
+ d->lineno = lineno;
d->name = 0;
/* Build up the list in the same order as the insns are seen
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)
+gen_expand (insn, lineno)
rtx insn;
+ int lineno;
{
register struct data *d = (struct data *) xmalloc (sizeof (struct data));
register int i;
- d->code_number = next_code_number++;
+ d->code_number = next_code_number;
d->index_number = next_index_number;
+ d->lineno = lineno;
if (XSTR (insn, 0)[0])
d->name = XSTR (insn, 0);
else
only for reasons of consistency and to simplify genrecog. */
static void
-gen_split (split)
+gen_split (split, lineno)
rtx split;
+ int lineno;
{
register struct data *d = (struct data *) xmalloc (sizeof (struct data));
register int i;
- d->code_number = next_code_number++;
+ d->code_number = next_code_number;
d->index_number = next_index_number;
+ d->lineno = lineno;
d->name = 0;
/* Build up the list in the same order as the insns are seen
place_operands (d);
}
-\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 **));
char **argv;
{
rtx desc;
- FILE *infile;
- register int c;
progname = "genoutput";
- obstack_init (rtl_obstack);
if (argc <= 1)
fatal ("No input file name.");
- infile = fopen (argv[1], "r");
- if (infile == 0)
- {
- perror (argv[1]);
- return (FATAL_EXIT_CODE);
- }
- read_rtx_filename = argv[1];
+ if (init_md_reader (argv[1]) != SUCCESS_EXIT_CODE)
+ return (FATAL_EXIT_CODE);
output_prologue ();
next_code_number = 0;
while (1)
{
- c = read_skip_spaces (infile);
- if (c == EOF)
+ int line_no;
+
+ desc = read_md_rtx (&line_no, &next_code_number);
+ if (desc == NULL)
break;
- ungetc (c, infile);
- desc = read_rtx (infile);
if (GET_CODE (desc) == DEFINE_INSN)
- gen_insn (desc);
+ gen_insn (desc, line_no);
if (GET_CODE (desc) == DEFINE_PEEPHOLE)
- gen_peephole (desc);
+ gen_peephole (desc, line_no);
if (GET_CODE (desc) == DEFINE_EXPAND)
- gen_expand (desc);
+ gen_expand (desc, line_no);
if (GET_CODE (desc) == DEFINE_SPLIT
|| GET_CODE (desc) == DEFINE_PEEPHOLE2)
- gen_split (desc);
+ gen_split (desc, line_no);
next_index_number++;
}
? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);
}
+/* Return the number of occurrences of character C in string S or
+ -1 if S is the null string. */
+
static int
n_occurrences (c, s)
int c;
- char *s;
+ const char *s;
{
int n = 0;
+
+ if (s == 0 || *s == '\0')
+ return -1;
+
while (*s)
n += (*s++ == c);
+
return n;
}
+
+/* Remove whitespace in `s' by moving up characters until the end.
+ Return a new string. */
+
+static const char *
+strip_whitespace (s)
+ const char *s;
+{
+ char *p, *q;
+ char ch;
+
+ if (s == 0)
+ return 0;
+
+ p = q = xmalloc (strlen (s) + 1);
+ while ((ch = *s++) != '\0')
+ if (! ISSPACE (ch))
+ *p++ = ch;
+
+ *p = '\0';
+ return q;
+}
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