/* Generate code from to output assembler insns as recognized from rtl.
- Copyright (C) 1987, 1988, 1992, 1994, 1995, 1997, 1998, 1999, 2000, 2002,
- 2003, 2004, 2005, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
+ Copyright (C) 1987-2021 Free Software Foundation, Inc.
This file is part of GCC.
MATCH_OPERAND; it is zero for operands that should not be changed during
register elimination such as MATCH_OPERATORs.
+ g. `allows_mem', is true for operands that accept MEM rtxes.
+
The code number of an insn is simply its position in the machine
description; code numbers are assigned sequentially to entries in
the description, starting with code number 0.
#define MAX_MAX_OPERANDS 40
+static char general_mem[] = { TARGET_MEM_CONSTRAINT, 0 };
+
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
- to insn-output.c (produced by this program). */
-
-static int next_code_number;
-
-/* This counts all definitions in the md file,
- for the sake of error messages. */
-
-static int next_index_number;
-
/* This counts all operands used in the md file. The first is null. */
static int next_operand_number = 1;
int index;
const char *predicate;
const char *constraint;
- enum machine_mode mode;
+ machine_mode mode;
unsigned char n_alternatives;
char address_p;
char strict_low;
static struct operand_data null_operand =
{
- 0, 0, "", "", VOIDmode, 0, 0, 0, 0, 0
+ 0, 0, "", "", E_VOIDmode, 0, 0, 0, 0, 0
};
static struct operand_data *odata = &null_operand;
/* Record in this chain all information that we will output,
associated with the code number of the insn. */
-struct data
+class data
{
- struct data *next;
+public:
+ class data *next;
const char *name;
const char *template_code;
+ file_location loc;
int code_number;
- int index_number;
- const char *filename;
- int lineno;
+ int n_generator_args; /* Number of arguments passed to generator */
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 */
};
/* This variable points to the first link in the insn chain. */
+static class data *idata;
+
+/* This variable points to the end of the insn chain. This is where
+ everything relevant from the machien description is appended to. */
+static class data **idata_end;
-static struct data *idata, **idata_end = &idata;
\f
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 void scan_operands (class 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);
-
-#ifdef USE_MD_CONSTRAINTS
-
-struct constraint_data
+static void place_operands (class data *);
+static void process_template (class data *, const char *);
+static void validate_insn_alternatives (class data *);
+static void validate_insn_operands (class data *);
+
+class constraint_data
{
- struct constraint_data *next_this_letter;
- int lineno;
+public:
+ class constraint_data *next_this_letter;
+ file_location loc;
unsigned int namelen;
- const char name[1];
+ char name[1];
};
-/* This is a complete list (unlike the one in genpreds.c) of constraint
- letters and modifiers with machine-independent meaning. The only
- omission is digits, as these are handled specially. */
-static const char indep_constraints[] = ",=+%*?!#&<>EFVXgimnoprs";
+/* All machine-independent constraint characters (except digits) that
+ are handled outside the define*_constraint mechanism. */
+static const char indep_constraints[] = ",=+%*?!^$#&g";
-static struct constraint_data *
+static class constraint_data *
constraints_by_letter_table[1 << CHAR_BIT];
-static int mdep_constraint_len (const char *, int, int);
-static void note_constraint (rtx, int);
-
-#else /* !USE_MD_CONSTRAINTS */
-
-static void check_constraint_len (void);
-static int constraint_len (const char *, int);
-
-#endif /* !USE_MD_CONSTRAINTS */
-
+static int mdep_constraint_len (const char *, file_location, int);
+static void note_constraint (md_rtx_info *);
\f
static void
output_prologue (void)
printf ("/* Generated automatically by the program `genoutput'\n\
from the machine description file `md'. */\n\n");
+ printf ("#define IN_TARGET_CODE 1\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 \"backend.h\"\n");
+ printf ("#include \"predict.h\"\n");
+ printf ("#include \"tree.h\"\n");
printf ("#include \"rtl.h\"\n");
+ printf ("#include \"flags.h\"\n");
+ printf ("#include \"alias.h\"\n");
+ printf ("#include \"varasm.h\"\n");
+ printf ("#include \"stor-layout.h\"\n");
+ printf ("#include \"calls.h\"\n");
+ printf ("#include \"insn-config.h\"\n");
+ printf ("#include \"expmed.h\"\n");
+ printf ("#include \"dojump.h\"\n");
+ printf ("#include \"explow.h\"\n");
+ printf ("#include \"memmodel.h\"\n");
+ printf ("#include \"emit-rtl.h\"\n");
+ printf ("#include \"stmt.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 \"hard-reg-set.h\"\n");
- printf ("#include \"insn-config.h\"\n\n");
printf ("#include \"conditions.h\"\n");
printf ("#include \"insn-attr.h\"\n\n");
printf ("#include \"recog.h\"\n\n");
for (d = odata; d; d = d->next)
{
+ struct pred_data *pred;
+
printf (" {\n");
printf (" %s,\n",
printf (" \"%s\",\n", d->constraint ? d->constraint : "");
- printf (" %smode,\n", GET_MODE_NAME (d->mode));
+ printf (" E_%smode,\n", GET_MODE_NAME (d->mode));
printf (" %d,\n", d->strict_low);
printf (" %d,\n", d->constraint == NULL ? 1 : 0);
- printf (" %d\n", d->eliminable);
+ printf (" %d,\n", d->eliminable);
- printf(" },\n");
+ pred = NULL;
+ if (d->predicate)
+ pred = lookup_predicate (d->predicate);
+ printf (" %d\n", pred && pred->codes[MEM]);
+
+ printf (" },\n");
}
- printf("};\n\n\n");
+ printf ("};\n\n\n");
}
static void
output_insn_data (void)
{
- struct data *d;
+ class data *d;
int name_offset = 0;
int next_name_offset;
const char * last_name = 0;
const char * next_name = 0;
- struct data *n;
+ class data *n;
for (n = idata, next_name_offset = 1; n; n = n->next, next_name_offset++)
if (n->name)
for (d = idata; d; d = d->next)
{
- printf (" /* %s:%d */\n", d->filename, d->lineno);
+ printf (" /* %s:%d */\n", d->loc.filename, d->loc.lineno);
printf (" {\n");
if (d->name)
switch (d->output_format)
{
case INSN_OUTPUT_FORMAT_NONE:
- printf ("#if HAVE_DESIGNATED_INITIALIZERS\n");
+ printf ("#if HAVE_DESIGNATED_UNION_INITIALIZERS\n");
printf (" { 0 },\n");
printf ("#else\n");
printf (" { 0, 0, 0 },\n");
const char *p = d->template_code;
char prev = 0;
- printf ("#if HAVE_DESIGNATED_INITIALIZERS\n");
+ printf ("#if HAVE_DESIGNATED_UNION_INITIALIZERS\n");
printf (" { .single =\n");
printf ("#else\n");
printf (" {\n");
++p;
}
printf ("\",\n");
- printf ("#if HAVE_DESIGNATED_INITIALIZERS\n");
+ printf ("#if HAVE_DESIGNATED_UNION_INITIALIZERS\n");
printf (" },\n");
printf ("#else\n");
printf (" 0, 0 },\n");
}
break;
case INSN_OUTPUT_FORMAT_MULTI:
- printf ("#if HAVE_DESIGNATED_INITIALIZERS\n");
+ printf ("#if HAVE_DESIGNATED_UNION_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 ("#if HAVE_DESIGNATED_INITIALIZERS\n");
+ printf ("#if HAVE_DESIGNATED_UNION_INITIALIZERS\n");
printf (" { .function = output_%d },\n", d->code_number);
printf ("#else\n");
printf (" { 0, 0, output_%d },\n", d->code_number);
}
if (d->name && d->name[0] != '*')
- printf (" (insn_gen_fn) gen_%s,\n", d->name);
+ printf (" { (insn_gen_fn::stored_funcptr) gen_%s },\n", d->name);
else
- printf (" 0,\n");
+ printf (" { 0 },\n");
printf (" &operand_data[%d],\n", d->operand_number);
+ printf (" %d,\n", d->n_generator_args);
printf (" %d,\n", d->n_operands);
printf (" %d,\n", d->n_dups);
printf (" %d,\n", d->n_alternatives);
printf (" %d\n", d->output_format);
- printf(" },\n");
+ printf (" },\n");
}
printf ("};\n\n\n");
}
}
\f
-/* Stores in max_opno the largest operand number present in `part', if
- that is larger than the previous value of max_opno, and the rest of
- the operand data into `d->operand[i]'.
+/* Stores the operand data into `d->operand[i]'.
THIS_ADDRESS_P is nonzero if the containing rtx was an ADDRESS.
THIS_STRICT_LOW is nonzero if the containing rtx was a STRICT_LOW_PART. */
-static int max_opno;
-static int num_dups;
-
static void
-scan_operands (struct data *d, rtx part, int this_address_p,
+scan_operands (class data *d, rtx part, int this_address_p,
int this_strict_low)
{
int i, j;
{
case MATCH_OPERAND:
opno = XINT (part, 0);
- if (opno > max_opno)
- max_opno = opno;
- if (max_opno >= MAX_MAX_OPERANDS)
+ if (opno >= MAX_MAX_OPERANDS)
{
- error_with_line (d->lineno, "maximum number of operands exceeded");
+ error_at (d->loc, "maximum number of operands exceeded");
return;
}
if (d->operand[opno].seen)
- error_with_line (d->lineno, "repeated operand number %d\n", opno);
+ error_at (d->loc, "repeated operand number %d\n", opno);
d->operand[opno].seen = 1;
d->operand[opno].mode = GET_MODE (part);
case MATCH_SCRATCH:
opno = XINT (part, 0);
- if (opno > max_opno)
- max_opno = opno;
- if (max_opno >= MAX_MAX_OPERANDS)
+ if (opno >= MAX_MAX_OPERANDS)
{
- error_with_line (d->lineno, "maximum number of operands exceeded");
+ error_at (d->loc, "maximum number of operands exceeded");
return;
}
if (d->operand[opno].seen)
- error_with_line (d->lineno, "repeated operand number %d\n", opno);
+ error_at (d->loc, "repeated operand number %d\n", opno);
d->operand[opno].seen = 1;
d->operand[opno].mode = GET_MODE (part);
case MATCH_OPERATOR:
case MATCH_PARALLEL:
opno = XINT (part, 0);
- if (opno > max_opno)
- max_opno = opno;
- if (max_opno >= MAX_MAX_OPERANDS)
+ if (opno >= MAX_MAX_OPERANDS)
{
- error_with_line (d->lineno, "maximum number of operands exceeded");
+ error_at (d->loc, "maximum number of operands exceeded");
return;
}
if (d->operand[opno].seen)
- error_with_line (d->lineno, "repeated operand number %d\n", opno);
+ error_at (d->loc, "repeated operand number %d\n", opno);
d->operand[opno].seen = 1;
d->operand[opno].mode = GET_MODE (part);
scan_operands (d, XVECEXP (part, 2, i), 0, 0);
return;
- case MATCH_DUP:
- case MATCH_OP_DUP:
- case MATCH_PAR_DUP:
- ++num_dups;
- break;
-
- case ADDRESS:
- scan_operands (d, XEXP (part, 0), 1, 0);
- return;
-
case STRICT_LOW_PART:
scan_operands (d, XEXP (part, 0), 0, 1);
return;
find a subsequence that is the same, or allocate a new one at the end. */
static void
-place_operands (struct data *d)
+place_operands (class data *d)
{
struct operand_data *od, *od2;
int i;
templates, or C code to generate the assembler code template. */
static void
-process_template (struct data *d, const char *template_code)
+process_template (class data *d, const char *template_code)
{
const char *cp;
int i;
d->output_format = INSN_OUTPUT_FORMAT_FUNCTION;
puts ("\nstatic const char *");
- printf ("output_%d (rtx *operands ATTRIBUTE_UNUSED, rtx insn ATTRIBUTE_UNUSED)\n",
+ printf ("output_%d (rtx *operands ATTRIBUTE_UNUSED, rtx_insn *insn ATTRIBUTE_UNUSED)\n",
d->code_number);
puts ("{");
- print_md_ptr_loc (template_code);
+ rtx_reader_ptr->print_md_ptr_loc (template_code);
puts (template_code + 1);
puts ("}");
}
list of assembler code templates, one for each alternative. */
else if (template_code[0] == '@')
{
- d->template_code = 0;
- d->output_format = INSN_OUTPUT_FORMAT_MULTI;
+ int found_star = 0;
- printf ("\nstatic const char * const output_%d[] = {\n", d->code_number);
+ for (cp = &template_code[1]; *cp; )
+ {
+ while (ISSPACE (*cp))
+ cp++;
+ if (*cp == '*')
+ found_star = 1;
+ while (!IS_VSPACE (*cp) && *cp != '\0')
+ ++cp;
+ }
+ d->template_code = 0;
+ if (found_star)
+ {
+ d->output_format = INSN_OUTPUT_FORMAT_FUNCTION;
+ puts ("\nstatic const char *");
+ printf ("output_%d (rtx *operands ATTRIBUTE_UNUSED, "
+ "rtx_insn *insn ATTRIBUTE_UNUSED)\n", d->code_number);
+ puts ("{");
+ puts (" switch (which_alternative)\n {");
+ }
+ else
+ {
+ d->output_format = INSN_OUTPUT_FORMAT_MULTI;
+ printf ("\nstatic const char * const output_%d[] = {\n",
+ d->code_number);
+ }
for (i = 0, cp = &template_code[1]; *cp; )
{
- const char *ep, *sp;
+ const char *ep, *sp, *bp;
while (ISSPACE (*cp))
cp++;
- printf (" \"");
+ bp = cp;
+ if (found_star)
+ {
+ printf (" case %d:", i);
+ if (*cp == '*')
+ {
+ printf ("\n ");
+ cp++;
+ }
+ else
+ printf (" return \"");
+ }
+ else
+ printf (" \"");
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");
+ message_at (d->loc, "trailing whitespace in output template");
while (cp < sp)
{
cp++;
}
- printf ("\",\n");
+ if (!found_star)
+ puts ("\",");
+ else if (*bp != '*')
+ puts ("\";");
+ else
+ {
+ /* The usual action will end with a return.
+ If there is neither break or return at the end, this is
+ assumed to be intentional; this allows to have multiple
+ consecutive alternatives share some code. */
+ puts ("");
+ }
i++;
}
if (i == 1)
- message_with_line (d->lineno,
- "'@' is redundant for output template with single alternative");
+ message_at (d->loc, "'@' is redundant for output template with"
+ " single alternative");
if (i != d->n_alternatives)
- error_with_line (d->lineno,
- "wrong number of alternatives in the output template");
+ error_at (d->loc, "wrong number of alternatives in the output"
+ " template");
- printf ("};\n");
+ if (found_star)
+ puts (" default: gcc_unreachable ();\n }\n}");
+ else
+ printf ("};\n");
}
else
{
/* Check insn D for consistency in number of constraint alternatives. */
static void
-validate_insn_alternatives (struct data *d)
+validate_insn_alternatives (class data *d)
{
int n = 0, start;
char c;
int which_alternative = 0;
int alternative_count_unsure = 0;
+ bool seen_write = false;
for (p = d->operand[start].constraint; (c = *p); p += len)
{
-#ifdef USE_MD_CONSTRAINTS
+ if ((c == '%' || c == '=' || c == '+')
+ && p != d->operand[start].constraint)
+ error_at (d->loc, "character '%c' can only be used at the"
+ " beginning of a constraint string", c);
+
+ if (c == '=' || c == '+')
+ seen_write = true;
+
+ /* Earlyclobber operands must always be marked write-only
+ or read/write. */
+ if (!seen_write && c == '&')
+ error_at (d->loc, "earlyclobber operands may not be"
+ " read-only in alternative %d", which_alternative);
+
if (ISSPACE (c) || strchr (indep_constraints, c))
len = 1;
else if (ISDIGIT (c))
len = q - p;
}
else
- len = mdep_constraint_len (p, d->lineno, start);
-#else
- len = CONSTRAINT_LEN (c, p);
-
- if (len < 1 || (len > 1 && strchr (",#*+=&%!0123456789", c)))
- {
- error_with_line (d->lineno,
- "invalid length %d for char '%c' in"
- " alternative %d of operand %d",
- len, c, which_alternative, start);
- len = 1;
- }
-#endif
+ len = mdep_constraint_len (p, d->loc, start);
if (c == ',')
{
for (i = 1; i < len; i++)
if (p[i] == '\0')
{
- error_with_line (d->lineno,
- "NUL in alternative %d of operand %d",
- which_alternative, start);
+ error_at (d->loc, "NUL in alternative %d of operand %d",
+ which_alternative, start);
alternative_count_unsure = 1;
break;
}
else if (strchr (",#*", p[i]))
{
- error_with_line (d->lineno,
- "'%c' in alternative %d of operand %d",
- p[i], which_alternative, start);
+ error_at (d->loc, "'%c' in alternative %d of operand %d",
+ p[i], which_alternative, start);
alternative_count_unsure = 1;
}
}
if (n == 0)
n = d->operand[start].n_alternatives;
else if (n != d->operand[start].n_alternatives)
- error_with_line (d->lineno,
- "wrong number of alternatives in operand %d",
- start);
+ error_at (d->loc, "wrong number of alternatives in operand %d",
+ start);
}
}
/* Verify that there are no gaps in operand numbers for INSNs. */
static void
-validate_insn_operands (struct data *d)
+validate_insn_operands (class data *d)
{
int i;
for (i = 0; i < d->n_operands; ++i)
if (d->operand[i].seen == 0)
- error_with_line (d->lineno, "missing operand %d", i);
+ error_at (d->loc, "missing operand %d", i);
}
static void
-validate_optab_operands (struct data *d)
+validate_optab_operands (class data *d)
{
if (!d->name || d->name[0] == '\0' || d->name[0] == '*')
return;
&& d->name[strlen (d->name) - 1] == '4'
&& d->operand[0].mode == VOIDmode)
{
- message_with_line (d->lineno, "missing mode for operand 0 of cstore");
+ message_at (d->loc, "missing mode for operand 0 of cstore");
have_error = 1;
}
}
a hairy output action, output a function for now. */
static void
-gen_insn (rtx insn, int lineno)
+gen_insn (md_rtx_info *info)
{
- struct data *d = XNEW (struct data);
+ struct pattern_stats stats;
+ rtx insn = info->def;
+ data *d = new data;
int i;
- d->code_number = next_code_number;
- d->index_number = next_index_number;
- d->filename = read_md_filename;
- d->lineno = lineno;
+ d->code_number = info->index;
+ d->loc = info->loc;
if (XSTR (insn, 0)[0])
d->name = XSTR (insn, 0);
else
*idata_end = d;
idata_end = &d->next;
- max_opno = -1;
- num_dups = 0;
memset (d->operand, 0, sizeof (d->operand));
for (i = 0; i < XVECLEN (insn, 1); i++)
scan_operands (d, XVECEXP (insn, 1, i), 0, 0);
- d->n_operands = max_opno + 1;
- d->n_dups = num_dups;
+ get_pattern_stats (&stats, XVEC (insn, 1));
+ d->n_generator_args = stats.num_generator_args;
+ d->n_operands = stats.num_insn_operands;
+ d->n_dups = stats.num_dups;
-#ifndef USE_MD_CONSTRAINTS
- check_constraint_len ();
-#endif
validate_insn_operands (d);
validate_insn_alternatives (d);
validate_optab_operands (d);
If the insn has a hairy output action, output it now. */
static void
-gen_peephole (rtx peep, int lineno)
+gen_peephole (md_rtx_info *info)
{
- struct data *d = XNEW (struct data);
+ struct pattern_stats stats;
+ data *d = new data;
int i;
- d->code_number = next_code_number;
- d->index_number = next_index_number;
- d->filename = read_md_filename;
- d->lineno = lineno;
+ d->code_number = info->index;
+ d->loc = info->loc;
d->name = 0;
/* Build up the list in the same order as the insns are seen
*idata_end = d;
idata_end = &d->next;
- max_opno = -1;
- num_dups = 0;
memset (d->operand, 0, sizeof (d->operand));
/* Get the number of operands by scanning all the patterns of the
peephole optimizer. But ignore all the rest of the information
thus obtained. */
+ rtx peep = info->def;
for (i = 0; i < XVECLEN (peep, 0); i++)
scan_operands (d, XVECEXP (peep, 0, i), 0, 0);
- d->n_operands = max_opno + 1;
+ get_pattern_stats (&stats, XVEC (peep, 0));
+ d->n_generator_args = 0;
+ d->n_operands = stats.num_insn_operands;
d->n_dups = 0;
validate_insn_alternatives (d);
only for the purposes of `insn_gen_function'. */
static void
-gen_expand (rtx insn, int lineno)
+gen_expand (md_rtx_info *info)
{
- struct data *d = XNEW (struct data);
+ struct pattern_stats stats;
+ rtx insn = info->def;
+ data *d = new data;
int i;
- d->code_number = next_code_number;
- d->index_number = next_index_number;
- d->filename = read_md_filename;
- d->lineno = lineno;
+ d->code_number = info->index;
+ d->loc = info->loc;
if (XSTR (insn, 0)[0])
d->name = XSTR (insn, 0);
else
*idata_end = d;
idata_end = &d->next;
- max_opno = -1;
- num_dups = 0;
memset (d->operand, 0, sizeof (d->operand));
/* Scan the operands to get the specified predicates and modes,
for (i = 0; i < XVECLEN (insn, 1); i++)
scan_operands (d, XVECEXP (insn, 1, i), 0, 0);
- d->n_operands = max_opno + 1;
- d->n_dups = num_dups;
+ get_pattern_stats (&stats, XVEC (insn, 1));
+ d->n_generator_args = stats.num_generator_args;
+ d->n_operands = stats.num_insn_operands;
+ d->n_dups = stats.num_dups;
d->template_code = 0;
d->output_format = INSN_OUTPUT_FORMAT_NONE;
place_operands (d);
}
\f
-/* Process a define_split just read. Assign its code number,
- only for reasons of consistency and to simplify genrecog. */
-
static void
-gen_split (rtx split, int lineno)
+init_insn_for_nothing (void)
{
- struct data *d = XNEW (struct data);
- int i;
-
- d->code_number = next_code_number;
- d->index_number = next_index_number;
- d->filename = read_md_filename;
- d->lineno = lineno;
- d->name = 0;
-
- /* Build up the list in the same order as the insns are seen
- in the machine description. */
- d->next = 0;
- *idata_end = d;
- idata_end = &d->next;
-
- max_opno = -1;
- num_dups = 0;
- memset (d->operand, 0, sizeof (d->operand));
-
- /* Get the number of operands by scanning all the patterns of the
- split patterns. But ignore all the rest of the information thus
- obtained. */
- for (i = 0; i < XVECLEN (split, 0); i++)
- scan_operands (d, XVECEXP (split, 0, i), 0, 0);
-
- d->n_operands = max_opno + 1;
- d->n_dups = 0;
- d->n_alternatives = 0;
- d->template_code = 0;
- d->output_format = INSN_OUTPUT_FORMAT_NONE;
-
- place_operands (d);
+ idata = XCNEW (class data);
+ new (idata) data ();
+ idata->name = "*placeholder_for_nothing";
+ idata->loc = file_location ("<internal>", 0, 0);
+ idata_end = &idata->next;
}
-extern int main (int, char **);
+extern int main (int, const char **);
int
-main (int argc, char **argv)
+main (int argc, const char **argv)
{
- rtx desc;
-
progname = "genoutput";
+ init_insn_for_nothing ();
+
if (!init_rtx_reader_args (argc, argv))
return (FATAL_EXIT_CODE);
output_prologue ();
- next_code_number = 0;
- next_index_number = 0;
/* Read the machine description. */
- while (1)
- {
- int line_no;
-
- desc = read_md_rtx (&line_no, &next_code_number);
- if (desc == NULL)
+ md_rtx_info info;
+ while (read_md_rtx (&info))
+ switch (GET_CODE (info.def))
+ {
+ case DEFINE_INSN:
+ gen_insn (&info);
break;
- switch (GET_CODE (desc))
- {
- case DEFINE_INSN:
- gen_insn (desc, line_no);
- break;
-
- case DEFINE_PEEPHOLE:
- gen_peephole (desc, line_no);
- break;
-
- case DEFINE_EXPAND:
- gen_expand (desc, line_no);
- break;
+ case DEFINE_PEEPHOLE:
+ gen_peephole (&info);
+ break;
- case DEFINE_SPLIT:
- case DEFINE_PEEPHOLE2:
- gen_split (desc, line_no);
- break;
+ case DEFINE_EXPAND:
+ gen_expand (&info);
+ break;
-#ifdef USE_MD_CONSTRAINTS
- case DEFINE_CONSTRAINT:
- case DEFINE_REGISTER_CONSTRAINT:
- case DEFINE_ADDRESS_CONSTRAINT:
- case DEFINE_MEMORY_CONSTRAINT:
- note_constraint (desc, line_no);
- break;
-#endif
+ case DEFINE_CONSTRAINT:
+ case DEFINE_REGISTER_CONSTRAINT:
+ case DEFINE_ADDRESS_CONSTRAINT:
+ case DEFINE_MEMORY_CONSTRAINT:
+ case DEFINE_SPECIAL_MEMORY_CONSTRAINT:
+ note_constraint (&info);
+ break;
- default:
- break;
- }
- next_index_number++;
- }
+ default:
+ break;
+ }
- printf("\n\n");
+ printf ("\n\n");
output_operand_data ();
output_insn_data ();
output_get_insn_name ();
return q;
}
-#ifdef USE_MD_CONSTRAINTS
-
-/* Record just enough information about a constraint to allow checking
- of operand constraint strings above, in validate_insn_alternatives.
- Does not validate most properties of the constraint itself; does
- enforce no duplicate names, no overlap with MI constraints, and no
- prefixes. EXP is the define_*constraint form, LINENO the line number
- reported by the reader. */
+/* Record just enough information about the constraint in *INFO to allow
+ checking of operand constraint strings above, in validate_insn_alternatives.
+ Does not validate most properties of the constraint itself; does enforce
+ no duplicate names, no overlap with MI constraints, and no prefixes. */
static void
-note_constraint (rtx exp, int lineno)
+note_constraint (md_rtx_info *info)
{
+ rtx exp = info->def;
const char *name = XSTR (exp, 0);
+ class constraint_data **iter, **slot, *new_cdata;
+
+ if (strcmp (name, "TARGET_MEM_CONSTRAINT") == 0)
+ name = general_mem;
unsigned int namelen = strlen (name);
- struct constraint_data **iter, **slot, *new_cdata;
- /* The 'm' constraint is special here since that constraint letter
- can be overridden by the back end by defining the
- TARGET_MEM_CONSTRAINT macro. */
- if (strchr (indep_constraints, name[0]) && name[0] != 'm')
+ if (strchr (indep_constraints, name[0]))
{
if (name[1] == '\0')
- error_with_line (lineno, "constraint letter '%s' cannot be "
- "redefined by the machine description", name);
+ error_at (info->loc, "constraint letter '%s' cannot be "
+ "redefined by the machine description", name);
else
- error_with_line (lineno, "constraint name '%s' cannot be defined by "
- "the machine description, as it begins with '%c'",
- name, name[0]);
+ error_at (info->loc, "constraint name '%s' cannot be defined by "
+ "the machine description, as it begins with '%c'",
+ name, name[0]);
return;
}
if (!strcmp ((*iter)->name, name))
{
- error_with_line (lineno, "redefinition of constraint '%s'", name);
- message_with_line ((*iter)->lineno, "previous definition is here");
+ error_at (info->loc, "redefinition of constraint '%s'", name);
+ message_at ((*iter)->loc, "previous definition is here");
return;
}
else if (!strncmp ((*iter)->name, name, (*iter)->namelen))
{
- error_with_line (lineno, "defining constraint '%s' here", name);
- message_with_line ((*iter)->lineno, "renders constraint '%s' "
- "(defined here) a prefix", (*iter)->name);
+ error_at (info->loc, "defining constraint '%s' here", name);
+ message_at ((*iter)->loc, "renders constraint '%s' "
+ "(defined here) a prefix", (*iter)->name);
return;
}
else if (!strncmp ((*iter)->name, name, namelen))
{
- error_with_line (lineno, "constraint '%s' is a prefix", name);
- message_with_line ((*iter)->lineno, "of constraint '%s' "
- "(defined here)", (*iter)->name);
+ error_at (info->loc, "constraint '%s' is a prefix", name);
+ message_at ((*iter)->loc, "of constraint '%s' "
+ "(defined here)", (*iter)->name);
return;
}
}
- new_cdata = XNEWVAR (struct constraint_data, sizeof (struct constraint_data) + namelen);
- strcpy ((char *)new_cdata + offsetof(struct constraint_data, name), name);
+ new_cdata = XNEWVAR (class constraint_data,
+ sizeof (class constraint_data) + namelen);
+ new (new_cdata) constraint_data ();
+ strcpy (CONST_CAST (char *, new_cdata->name), name);
new_cdata->namelen = namelen;
- new_cdata->lineno = lineno;
+ new_cdata->loc = info->loc;
new_cdata->next_this_letter = *slot;
*slot = new_cdata;
}
is no such constraint. Does not expect to be called for generic
constraints. */
static int
-mdep_constraint_len (const char *s, int lineno, int opno)
+mdep_constraint_len (const char *s, file_location loc, int opno)
{
- struct constraint_data *p;
+ class constraint_data *p;
p = constraints_by_letter_table[(unsigned int)s[0]];
if (!strncmp (s, p->name, p->namelen))
return p->namelen;
- error_with_line (lineno,
- "error: undefined machine-specific constraint "
- "at this point: \"%s\"", s);
- message_with_line (lineno, "note: in operand %d", opno);
+ error_at (loc, "error: undefined machine-specific constraint "
+ "at this point: \"%s\"", s);
+ message_at (loc, "note: in operand %d", opno);
return 1; /* safe */
}
-
-#else
-/* 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++)
- gcc_assert (constraint_len (p, d) == d);
-}
-
-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... */
- gcc_assert (DEFAULT_CONSTRAINT_LEN (*p, p) == 1);
- /* 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
-}
-#endif
projects / thirdparty / gcc.git / blobdiff