367 lines
12 KiB
C
367 lines
12 KiB
C
/* Generate code to initialize optabs from machine description.
|
|
Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998,
|
|
1999, 2000 Free Software Foundation, Inc.
|
|
|
|
This file is part of GCC.
|
|
|
|
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.
|
|
|
|
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 GCC; see the file COPYING. If not, write to the Free
|
|
Software Foundation, 59 Temple Place - Suite 330, Boston, MA
|
|
02111-1307, USA. */
|
|
|
|
|
|
#include "hconfig.h"
|
|
#include "system.h"
|
|
#include "rtl.h"
|
|
#include "errors.h"
|
|
#include "gensupport.h"
|
|
|
|
|
|
/* Many parts of GCC use arrays that are indexed by machine mode and
|
|
contain the insn codes for pattern in the MD file that perform a given
|
|
operation on operands of that mode.
|
|
|
|
These patterns are present in the MD file with names that contain
|
|
the mode(s) used and the name of the operation. This program
|
|
writes a function `init_all_optabs' that initializes the optabs with
|
|
all the insn codes of the relevant patterns present in the MD file.
|
|
|
|
This array contains a list of optabs that need to be initialized. Within
|
|
each string, the name of the pattern to be matched against is delimited
|
|
with $( and $). In the string, $a and $b are used to match a short mode
|
|
name (the part of the mode name not including `mode' and converted to
|
|
lower-case). When writing out the initializer, the entire string is
|
|
used. $A and $B are replaced with the full name of the mode; $a and $b
|
|
are replaced with the short form of the name, as above.
|
|
|
|
If $N is present in the pattern, it means the two modes must be consecutive
|
|
widths in the same mode class (e.g, QImode and HImode). $I means that
|
|
only full integer modes should be considered for the next mode, and $F
|
|
means that only float modes should be considered.
|
|
$P means that both full and partial integer modes should be considered.
|
|
|
|
$V means to emit 'v' if the first mode is a MODE_FLOAT mode.
|
|
|
|
For some optabs, we store the operation by RTL codes. These are only
|
|
used for comparisons. In that case, $c and $C are the lower-case and
|
|
upper-case forms of the comparison, respectively. */
|
|
|
|
static const char * const optabs[] =
|
|
{ "extendtab[$B][$A][0] = CODE_FOR_$(extend$a$b2$)",
|
|
"extendtab[$B][$A][1] = CODE_FOR_$(zero_extend$a$b2$)",
|
|
"fixtab[$A][$B][0] = CODE_FOR_$(fix$F$a$I$b2$)",
|
|
"fixtab[$A][$B][1] = CODE_FOR_$(fixuns$F$a$b2$)",
|
|
"fixtrunctab[$A][$B][0] = CODE_FOR_$(fix_trunc$F$a$I$b2$)",
|
|
"fixtrunctab[$A][$B][1] = CODE_FOR_$(fixuns_trunc$F$a$I$b2$)",
|
|
"floattab[$B][$A][0] = CODE_FOR_$(float$I$a$F$b2$)",
|
|
"floattab[$B][$A][1] = CODE_FOR_$(floatuns$I$a$F$b2$)",
|
|
"add_optab->handlers[$A].insn_code = CODE_FOR_$(add$P$a3$)",
|
|
"addv_optab->handlers[(int) $A].insn_code =\n\
|
|
add_optab->handlers[(int) $A].insn_code = CODE_FOR_$(add$F$a3$)",
|
|
"addv_optab->handlers[(int) $A].insn_code = CODE_FOR_$(addv$I$a3$)",
|
|
"sub_optab->handlers[$A].insn_code = CODE_FOR_$(sub$P$a3$)",
|
|
"subv_optab->handlers[(int) $A].insn_code =\n\
|
|
sub_optab->handlers[(int) $A].insn_code = CODE_FOR_$(sub$F$a3$)",
|
|
"subv_optab->handlers[(int) $A].insn_code = CODE_FOR_$(subv$I$a3$)",
|
|
"smul_optab->handlers[$A].insn_code = CODE_FOR_$(mul$P$a3$)",
|
|
"smulv_optab->handlers[(int) $A].insn_code =\n\
|
|
smul_optab->handlers[(int) $A].insn_code = CODE_FOR_$(mul$F$a3$)",
|
|
"smulv_optab->handlers[(int) $A].insn_code = CODE_FOR_$(mulv$I$a3$)",
|
|
"umul_highpart_optab->handlers[$A].insn_code = CODE_FOR_$(umul$a3_highpart$)",
|
|
"smul_highpart_optab->handlers[$A].insn_code = CODE_FOR_$(smul$a3_highpart$)",
|
|
"smul_widen_optab->handlers[$B].insn_code = CODE_FOR_$(mul$a$b3$)$N",
|
|
"umul_widen_optab->handlers[$B].insn_code = CODE_FOR_$(umul$a$b3$)$N",
|
|
"sdiv_optab->handlers[$A].insn_code = CODE_FOR_$(div$a3$)",
|
|
"sdivv_optab->handlers[(int) $A].insn_code = CODE_FOR_$(div$V$I$a3$)",
|
|
"udiv_optab->handlers[$A].insn_code = CODE_FOR_$(udiv$I$a3$)",
|
|
"sdivmod_optab->handlers[$A].insn_code = CODE_FOR_$(divmod$a4$)",
|
|
"udivmod_optab->handlers[$A].insn_code = CODE_FOR_$(udivmod$a4$)",
|
|
"smod_optab->handlers[$A].insn_code = CODE_FOR_$(mod$a3$)",
|
|
"umod_optab->handlers[$A].insn_code = CODE_FOR_$(umod$a3$)",
|
|
"ftrunc_optab->handlers[$A].insn_code = CODE_FOR_$(ftrunc$F$a2$)",
|
|
"and_optab->handlers[$A].insn_code = CODE_FOR_$(and$a3$)",
|
|
"ior_optab->handlers[$A].insn_code = CODE_FOR_$(ior$a3$)",
|
|
"xor_optab->handlers[$A].insn_code = CODE_FOR_$(xor$a3$)",
|
|
"ashl_optab->handlers[$A].insn_code = CODE_FOR_$(ashl$a3$)",
|
|
"ashr_optab->handlers[$A].insn_code = CODE_FOR_$(ashr$a3$)",
|
|
"lshr_optab->handlers[$A].insn_code = CODE_FOR_$(lshr$a3$)",
|
|
"rotl_optab->handlers[$A].insn_code = CODE_FOR_$(rotl$a3$)",
|
|
"rotr_optab->handlers[$A].insn_code = CODE_FOR_$(rotr$a3$)",
|
|
"smin_optab->handlers[$A].insn_code = CODE_FOR_$(smin$I$a3$)",
|
|
"smin_optab->handlers[$A].insn_code = CODE_FOR_$(min$F$a3$)",
|
|
"smax_optab->handlers[$A].insn_code = CODE_FOR_$(smax$I$a3$)",
|
|
"smax_optab->handlers[$A].insn_code = CODE_FOR_$(max$F$a3$)",
|
|
"umin_optab->handlers[$A].insn_code = CODE_FOR_$(umin$I$a3$)",
|
|
"umax_optab->handlers[$A].insn_code = CODE_FOR_$(umax$I$a3$)",
|
|
"neg_optab->handlers[$A].insn_code = CODE_FOR_$(neg$P$a2$)",
|
|
"negv_optab->handlers[(int) $A].insn_code =\n\
|
|
neg_optab->handlers[(int) $A].insn_code = CODE_FOR_$(neg$F$a2$)",
|
|
"negv_optab->handlers[(int) $A].insn_code = CODE_FOR_$(negv$I$a2$)",
|
|
"abs_optab->handlers[$A].insn_code = CODE_FOR_$(abs$P$a2$)",
|
|
"absv_optab->handlers[(int) $A].insn_code =\n\
|
|
abs_optab->handlers[(int) $A].insn_code = CODE_FOR_$(abs$F$a2$)",
|
|
"absv_optab->handlers[(int) $A].insn_code = CODE_FOR_$(absv$I$a2$)",
|
|
"sqrt_optab->handlers[$A].insn_code = CODE_FOR_$(sqrt$a2$)",
|
|
"sin_optab->handlers[$A].insn_code = CODE_FOR_$(sin$a2$)",
|
|
"cos_optab->handlers[$A].insn_code = CODE_FOR_$(cos$a2$)",
|
|
"strlen_optab->handlers[$A].insn_code = CODE_FOR_$(strlen$a$)",
|
|
"one_cmpl_optab->handlers[$A].insn_code = CODE_FOR_$(one_cmpl$a2$)",
|
|
"ffs_optab->handlers[$A].insn_code = CODE_FOR_$(ffs$a2$)",
|
|
"mov_optab->handlers[$A].insn_code = CODE_FOR_$(mov$a$)",
|
|
"movstrict_optab->handlers[$A].insn_code = CODE_FOR_$(movstrict$a$)",
|
|
"cmp_optab->handlers[$A].insn_code = CODE_FOR_$(cmp$a$)",
|
|
"tst_optab->handlers[$A].insn_code = CODE_FOR_$(tst$a$)",
|
|
"bcc_gen_fctn[$C] = gen_$(b$c$)",
|
|
"setcc_gen_code[$C] = CODE_FOR_$(s$c$)",
|
|
"movcc_gen_code[$A] = CODE_FOR_$(mov$acc$)",
|
|
"cbranch_optab->handlers[$A].insn_code = CODE_FOR_$(cbranch$a4$)",
|
|
"cmov_optab->handlers[$A].insn_code = CODE_FOR_$(cmov$a6$)",
|
|
"cstore_optab->handlers[$A].insn_code = CODE_FOR_$(cstore$a4$)",
|
|
"push_optab->handlers[$A].insn_code = CODE_FOR_$(push$a1$)",
|
|
"reload_in_optab[$A] = CODE_FOR_$(reload_in$a$)",
|
|
"reload_out_optab[$A] = CODE_FOR_$(reload_out$a$)",
|
|
"movstr_optab[$A] = CODE_FOR_$(movstr$a$)",
|
|
"clrstr_optab[$A] = CODE_FOR_$(clrstr$a$)" };
|
|
|
|
static void gen_insn PARAMS ((rtx));
|
|
|
|
static void
|
|
gen_insn (insn)
|
|
rtx insn;
|
|
{
|
|
const char *name = XSTR (insn, 0);
|
|
int m1 = 0, m2 = 0, op = 0;
|
|
size_t pindex;
|
|
int i;
|
|
const char *np, *pp, *p, *q;
|
|
|
|
/* Don't mention instructions whose names are the null string.
|
|
They are in the machine description just to be recognized. */
|
|
if (*name == 0)
|
|
return;
|
|
|
|
/* See if NAME matches one of the patterns we have for the optabs we know
|
|
about. */
|
|
|
|
for (pindex = 0; pindex < ARRAY_SIZE (optabs); pindex++)
|
|
{
|
|
int force_float = 0, force_int = 0, force_partial_int = 0;
|
|
int force_consec = 0;
|
|
int matches = 1;
|
|
|
|
for (pp = optabs[pindex]; pp[0] != '$' || pp[1] != '('; pp++)
|
|
;
|
|
|
|
for (pp += 2, np = name; matches && ! (pp[0] == '$' && pp[1] == ')');
|
|
pp++)
|
|
{
|
|
if (*pp != '$')
|
|
{
|
|
if (*pp != *np++)
|
|
break;
|
|
}
|
|
else
|
|
switch (*++pp)
|
|
{
|
|
case 'N':
|
|
force_consec = 1;
|
|
break;
|
|
case 'I':
|
|
force_int = 1;
|
|
break;
|
|
case 'P':
|
|
force_partial_int = 1;
|
|
break;
|
|
case 'F':
|
|
force_float = 1;
|
|
break;
|
|
case 'V':
|
|
break;
|
|
case 'c':
|
|
for (op = 0; op < NUM_RTX_CODE; op++)
|
|
{
|
|
for (p = GET_RTX_NAME(op), q = np; *p; p++, q++)
|
|
if (*p != *q)
|
|
break;
|
|
|
|
/* We have to be concerned about matching "gt" and
|
|
missing "gtu", e.g., so verify we have reached the
|
|
end of thing we are to match. */
|
|
if (*p == 0 && *q == 0 && GET_RTX_CLASS(op) == '<')
|
|
break;
|
|
}
|
|
|
|
if (op == NUM_RTX_CODE)
|
|
matches = 0;
|
|
else
|
|
np += strlen (GET_RTX_NAME(op));
|
|
break;
|
|
case 'a':
|
|
case 'b':
|
|
/* This loop will stop at the first prefix match, so
|
|
look through the modes in reverse order, in case
|
|
EXTRA_CC_MODES was used and CC is a prefix of the
|
|
CC modes (as it should be). */
|
|
for (i = ((int) MAX_MACHINE_MODE) - 1; i >= 0; i--)
|
|
{
|
|
for (p = GET_MODE_NAME(i), q = np; *p; p++, q++)
|
|
if (TOLOWER (*p) != *q)
|
|
break;
|
|
|
|
if (*p == 0
|
|
&& (! force_int || mode_class[i] == MODE_INT
|
|
|| mode_class[i] == MODE_VECTOR_INT)
|
|
&& (! force_partial_int
|
|
|| mode_class[i] == MODE_INT
|
|
|| mode_class[i] == MODE_PARTIAL_INT
|
|
|| mode_class[i] == MODE_VECTOR_INT)
|
|
&& (! force_float || mode_class[i] == MODE_FLOAT
|
|
|| mode_class[i] == MODE_VECTOR_FLOAT))
|
|
break;
|
|
}
|
|
|
|
if (i < 0)
|
|
matches = 0;
|
|
else if (*pp == 'a')
|
|
m1 = i, np += strlen (GET_MODE_NAME(i));
|
|
else
|
|
m2 = i, np += strlen (GET_MODE_NAME(i));
|
|
|
|
force_int = force_partial_int = force_float = 0;
|
|
break;
|
|
|
|
default:
|
|
abort ();
|
|
}
|
|
}
|
|
|
|
if (matches && pp[0] == '$' && pp[1] == ')'
|
|
&& *np == 0
|
|
&& (! force_consec || (int) GET_MODE_WIDER_MODE(m1) == m2))
|
|
break;
|
|
}
|
|
|
|
if (pindex == ARRAY_SIZE (optabs))
|
|
return;
|
|
|
|
/* We found a match. If this pattern is only conditionally present,
|
|
write out the "if" and two extra blanks. */
|
|
|
|
if (*XSTR (insn, 2) != 0)
|
|
printf (" if (HAVE_%s)\n ", name);
|
|
|
|
printf (" ");
|
|
|
|
/* Now write out the initialization, making all required substitutions. */
|
|
for (pp = optabs[pindex]; *pp; pp++)
|
|
{
|
|
if (*pp != '$')
|
|
putchar (*pp);
|
|
else
|
|
switch (*++pp)
|
|
{
|
|
case '(': case ')':
|
|
case 'I': case 'F': case 'N':
|
|
break;
|
|
case 'V':
|
|
if (GET_MODE_CLASS (m1) == MODE_FLOAT)
|
|
printf ("v");
|
|
break;
|
|
case 'a':
|
|
for (np = GET_MODE_NAME(m1); *np; np++)
|
|
putchar (TOLOWER (*np));
|
|
break;
|
|
case 'b':
|
|
for (np = GET_MODE_NAME(m2); *np; np++)
|
|
putchar (TOLOWER (*np));
|
|
break;
|
|
case 'A':
|
|
printf ("(int) %smode", GET_MODE_NAME(m1));
|
|
break;
|
|
case 'B':
|
|
printf ("(int) %smode", GET_MODE_NAME(m2));
|
|
break;
|
|
case 'c':
|
|
printf ("%s", GET_RTX_NAME(op));
|
|
break;
|
|
case 'C':
|
|
printf ("(int) ");
|
|
for (np = GET_RTX_NAME(op); *np; np++)
|
|
putchar (TOUPPER (*np));
|
|
break;
|
|
}
|
|
}
|
|
|
|
printf (";\n");
|
|
}
|
|
|
|
extern int main PARAMS ((int, char **));
|
|
|
|
int
|
|
main (argc, argv)
|
|
int argc;
|
|
char **argv;
|
|
{
|
|
rtx desc;
|
|
|
|
progname = "genopinit";
|
|
|
|
if (argc <= 1)
|
|
fatal ("no input file name");
|
|
|
|
if (init_md_reader_args (argc, argv) != SUCCESS_EXIT_CODE)
|
|
return (FATAL_EXIT_CODE);
|
|
|
|
printf ("/* Generated automatically by the program `genopinit'\n\
|
|
from the machine description file `md'. */\n\n");
|
|
|
|
printf ("#include \"config.h\"\n");
|
|
printf ("#include \"system.h\"\n");
|
|
printf ("#include \"rtl.h\"\n");
|
|
printf ("#include \"flags.h\"\n");
|
|
printf ("#include \"insn-config.h\"\n");
|
|
printf ("#include \"recog.h\"\n");
|
|
printf ("#include \"expr.h\"\n");
|
|
printf ("#include \"optabs.h\"\n");
|
|
printf ("#include \"reload.h\"\n\n");
|
|
|
|
printf ("void\ninit_all_optabs ()\n{\n");
|
|
|
|
/* Read the machine description. */
|
|
|
|
while (1)
|
|
{
|
|
int line_no, insn_code_number = 0;
|
|
|
|
desc = read_md_rtx (&line_no, &insn_code_number);
|
|
if (desc == NULL)
|
|
break;
|
|
|
|
if (GET_CODE (desc) == DEFINE_INSN || GET_CODE (desc) == DEFINE_EXPAND)
|
|
gen_insn (desc);
|
|
}
|
|
|
|
printf ("}\n");
|
|
|
|
fflush (stdout);
|
|
return (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);
|
|
}
|
|
|
|
/* Define this so we can link with print-rtl.o to get debug_rtx function. */
|
|
const char *
|
|
get_insn_name (code)
|
|
int code ATTRIBUTE_UNUSED;
|
|
{
|
|
return NULL;
|
|
}
|