gcc/genopinit.c

   1 /* Generate code to initialize optabs from machine description.
   2    Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
   3    2001, 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
   4
   5 This file is part of GCC.
   6
   7 GCC is free software; you can redistribute it and/or modify it under
   8 the terms of the GNU General Public License as published by the Free
   9 Software Foundation; either version 2, or (at your option) any later
  10 version.
  11
  12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  15 for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GCC; see the file COPYING.  If not, write to the Free
  19 Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
  20 02110-1301, USA.  */
  21
  22
  23 #include "bconfig.h"
  24 #include "system.h"
  25 #include "coretypes.h"
  26 #include "tm.h"
  27 #include "rtl.h"
  28 #include "errors.h"
  29 #include "gensupport.h"
  30
  31
  32 /* Many parts of GCC use arrays that are indexed by machine mode and
  33    contain the insn codes for pattern in the MD file that perform a given
  34    operation on operands of that mode.
  35
  36    These patterns are present in the MD file with names that contain
  37    the mode(s) used and the name of the operation.  This program
  38    writes a function `init_all_optabs' that initializes the optabs with
  39    all the insn codes of the relevant patterns present in the MD file.
  40
  41    This array contains a list of optabs that need to be initialized.  Within
  42    each string, the name of the pattern to be matched against is delimited
  43    with $( and $).  In the string, $a and $b are used to match a short mode
  44    name (the part of the mode name not including `mode' and converted to
  45    lower-case).  When writing out the initializer, the entire string is
  46    used.  $A and $B are replaced with the full name of the mode; $a and $b
  47    are replaced with the short form of the name, as above.
  48
  49    If $N is present in the pattern, it means the two modes must be consecutive
  50    widths in the same mode class (e.g, QImode and HImode).  $I means that
  51    only full integer modes should be considered for the next mode, and $F
  52    means that only float modes should be considered.
  53    $P means that both full and partial integer modes should be considered.
  54
  55    $V means to emit 'v' if the first mode is a MODE_FLOAT mode.
  56
  57    For some optabs, we store the operation by RTL codes.  These are only
  58    used for comparisons.  In that case, $c and $C are the lower-case and
  59    upper-case forms of the comparison, respectively.  */
  60
  61 static const char * const optabs[] =
  62 { "sext_optab->handlers[$B][$A].insn_code = CODE_FOR_$(extend$a$b2$)",
  63   "zext_optab->handlers[$B][$A].insn_code = CODE_FOR_$(zero_extend$a$b2$)",
  64   "sfix_optab->handlers[$B][$A].insn_code = CODE_FOR_$(fix$F$a$I$b2$)",
  65   "ufix_optab->handlers[$B][$A].insn_code = CODE_FOR_$(fixuns$F$a$b2$)",
  66   "sfixtrunc_optab->handlers[$B][$A].insn_code = CODE_FOR_$(fix_trunc$F$a$I$b2$)",
  67   "ufixtrunc_optab->handlers[$B][$A].insn_code = CODE_FOR_$(fixuns_trunc$F$a$I$b2$)",
  68   "sfloat_optab->handlers[$B][$A].insn_code = CODE_FOR_$(float$I$a$F$b2$)",
  69   "ufloat_optab->handlers[$B][$A].insn_code = CODE_FOR_$(floatuns$I$a$F$b2$)",
  70   "trunc_optab->handlers[$B][$A].insn_code = CODE_FOR_$(trunc$a$b2$)",
  71   "add_optab->handlers[$A].insn_code = CODE_FOR_$(add$P$a3$)",
  72   "addv_optab->handlers[$A].insn_code =\n\
  73     add_optab->handlers[$A].insn_code = CODE_FOR_$(add$F$a3$)",
  74   "addv_optab->handlers[$A].insn_code = CODE_FOR_$(addv$I$a3$)",
  75   "sub_optab->handlers[$A].insn_code = CODE_FOR_$(sub$P$a3$)",
  76   "subv_optab->handlers[$A].insn_code =\n\
  77     sub_optab->handlers[$A].insn_code = CODE_FOR_$(sub$F$a3$)",
  78   "subv_optab->handlers[$A].insn_code = CODE_FOR_$(subv$I$a3$)",
  79   "smul_optab->handlers[$A].insn_code = CODE_FOR_$(mul$P$a3$)",
  80   "smulv_optab->handlers[$A].insn_code =\n\
  81     smul_optab->handlers[$A].insn_code = CODE_FOR_$(mul$F$a3$)",
  82   "smulv_optab->handlers[$A].insn_code = CODE_FOR_$(mulv$I$a3$)",
  83   "umul_highpart_optab->handlers[$A].insn_code = CODE_FOR_$(umul$a3_highpart$)",
  84   "smul_highpart_optab->handlers[$A].insn_code = CODE_FOR_$(smul$a3_highpart$)",
  85   "smul_widen_optab->handlers[$B].insn_code = CODE_FOR_$(mul$a$b3$)$N",
  86   "umul_widen_optab->handlers[$B].insn_code = CODE_FOR_$(umul$a$b3$)$N",
  87   "usmul_widen_optab->handlers[$B].insn_code = CODE_FOR_$(usmul$a$b3$)$N",
  88   "sdiv_optab->handlers[$A].insn_code = CODE_FOR_$(div$a3$)",
  89   "sdivv_optab->handlers[$A].insn_code = CODE_FOR_$(div$V$I$a3$)",
  90   "udiv_optab->handlers[$A].insn_code = CODE_FOR_$(udiv$I$a3$)",
  91   "sdivmod_optab->handlers[$A].insn_code = CODE_FOR_$(divmod$a4$)",
  92   "udivmod_optab->handlers[$A].insn_code = CODE_FOR_$(udivmod$a4$)",
  93   "smod_optab->handlers[$A].insn_code = CODE_FOR_$(mod$a3$)",
  94   "umod_optab->handlers[$A].insn_code = CODE_FOR_$(umod$a3$)",
  95   "fmod_optab->handlers[$A].insn_code = CODE_FOR_$(fmod$a3$)",
  96   "drem_optab->handlers[$A].insn_code = CODE_FOR_$(drem$a3$)",
  97   "ftrunc_optab->handlers[$A].insn_code = CODE_FOR_$(ftrunc$F$a2$)",
  98   "and_optab->handlers[$A].insn_code = CODE_FOR_$(and$a3$)",
  99   "ior_optab->handlers[$A].insn_code = CODE_FOR_$(ior$a3$)",
 100   "xor_optab->handlers[$A].insn_code = CODE_FOR_$(xor$a3$)",
 101   "ashl_optab->handlers[$A].insn_code = CODE_FOR_$(ashl$a3$)",
 102   "ashr_optab->handlers[$A].insn_code = CODE_FOR_$(ashr$a3$)",
 103   "lshr_optab->handlers[$A].insn_code = CODE_FOR_$(lshr$a3$)",
 104   "rotl_optab->handlers[$A].insn_code = CODE_FOR_$(rotl$a3$)",
 105   "rotr_optab->handlers[$A].insn_code = CODE_FOR_$(rotr$a3$)",
 106   "smin_optab->handlers[$A].insn_code = CODE_FOR_$(smin$a3$)",
 107   "smax_optab->handlers[$A].insn_code = CODE_FOR_$(smax$a3$)",
 108   "umin_optab->handlers[$A].insn_code = CODE_FOR_$(umin$I$a3$)",
 109   "umax_optab->handlers[$A].insn_code = CODE_FOR_$(umax$I$a3$)",
 110   "pow_optab->handlers[$A].insn_code = CODE_FOR_$(pow$a3$)",
 111   "atan2_optab->handlers[$A].insn_code = CODE_FOR_$(atan2$a3$)",
 112   "neg_optab->handlers[$A].insn_code = CODE_FOR_$(neg$P$a2$)",
 113   "negv_optab->handlers[$A].insn_code =\n\
 114     neg_optab->handlers[$A].insn_code = CODE_FOR_$(neg$F$a2$)",
 115   "negv_optab->handlers[$A].insn_code = CODE_FOR_$(negv$I$a2$)",
 116   "abs_optab->handlers[$A].insn_code = CODE_FOR_$(abs$P$a2$)",
 117   "absv_optab->handlers[$A].insn_code =\n\
 118     abs_optab->handlers[$A].insn_code = CODE_FOR_$(abs$F$a2$)",
 119   "absv_optab->handlers[$A].insn_code = CODE_FOR_$(absv$I$a2$)",
 120   "copysign_optab->handlers[$A].insn_code = CODE_FOR_$(copysign$F$a3$)",
 121   "sqrt_optab->handlers[$A].insn_code = CODE_FOR_$(sqrt$a2$)",
 122   "floor_optab->handlers[$A].insn_code = CODE_FOR_$(floor$a2$)",
 123   "lfloor_optab->handlers[$A].insn_code = CODE_FOR_$(lfloor$a2$)",
 124   "ceil_optab->handlers[$A].insn_code = CODE_FOR_$(ceil$a2$)",
 125   "lceil_optab->handlers[$A].insn_code = CODE_FOR_$(lceil$a2$)",
 126   "round_optab->handlers[$A].insn_code = CODE_FOR_$(round$a2$)",
 127   "btrunc_optab->handlers[$A].insn_code = CODE_FOR_$(btrunc$a2$)",
 128   "nearbyint_optab->handlers[$A].insn_code = CODE_FOR_$(nearbyint$a2$)",
 129   "rint_optab->handlers[$A].insn_code = CODE_FOR_$(rint$a2$)",
 130   "lrint_optab->handlers[$A].insn_code = CODE_FOR_$(lrint$a2$)",
 131   "sincos_optab->handlers[$A].insn_code = CODE_FOR_$(sincos$a3$)",
 132   "sin_optab->handlers[$A].insn_code = CODE_FOR_$(sin$a2$)",
 133   "asin_optab->handlers[$A].insn_code = CODE_FOR_$(asin$a2$)",
 134   "cos_optab->handlers[$A].insn_code = CODE_FOR_$(cos$a2$)",
 135   "acos_optab->handlers[$A].insn_code = CODE_FOR_$(acos$a2$)",
 136   "exp_optab->handlers[$A].insn_code = CODE_FOR_$(exp$a2$)",
 137   "exp10_optab->handlers[$A].insn_code = CODE_FOR_$(exp10$a2$)",
 138   "exp2_optab->handlers[$A].insn_code = CODE_FOR_$(exp2$a2$)",
 139   "expm1_optab->handlers[$A].insn_code = CODE_FOR_$(expm1$a2$)",
 140   "ldexp_optab->handlers[$A].insn_code = CODE_FOR_$(ldexp$a3$)",
 141   "logb_optab->handlers[$A].insn_code = CODE_FOR_$(logb$a2$)",
 142   "ilogb_optab->handlers[$A].insn_code = CODE_FOR_$(ilogb$a2$)",
 143   "log_optab->handlers[$A].insn_code = CODE_FOR_$(log$a2$)",
 144   "log10_optab->handlers[$A].insn_code = CODE_FOR_$(log10$a2$)",
 145   "log2_optab->handlers[$A].insn_code = CODE_FOR_$(log2$a2$)",
 146   "log1p_optab->handlers[$A].insn_code = CODE_FOR_$(log1p$a2$)",
 147   "tan_optab->handlers[$A].insn_code = CODE_FOR_$(tan$a2$)",
 148   "atan_optab->handlers[$A].insn_code = CODE_FOR_$(atan$a2$)",
 149   "strlen_optab->handlers[$A].insn_code = CODE_FOR_$(strlen$a$)",
 150   "one_cmpl_optab->handlers[$A].insn_code = CODE_FOR_$(one_cmpl$a2$)",
 151   "ffs_optab->handlers[$A].insn_code = CODE_FOR_$(ffs$a2$)",
 152   "clz_optab->handlers[$A].insn_code = CODE_FOR_$(clz$a2$)",
 153   "ctz_optab->handlers[$A].insn_code = CODE_FOR_$(ctz$a2$)",
 154   "popcount_optab->handlers[$A].insn_code = CODE_FOR_$(popcount$a2$)",
 155   "parity_optab->handlers[$A].insn_code = CODE_FOR_$(parity$a2$)",
 156   "mov_optab->handlers[$A].insn_code = CODE_FOR_$(mov$a$)",
 157   "movstrict_optab->handlers[$A].insn_code = CODE_FOR_$(movstrict$a$)",
 158   "movmisalign_optab->handlers[$A].insn_code = CODE_FOR_$(movmisalign$a$)",
 159   "cmp_optab->handlers[$A].insn_code = CODE_FOR_$(cmp$a$)",
 160   "tst_optab->handlers[$A].insn_code = CODE_FOR_$(tst$a$)",
 161   "addcc_optab->handlers[$A].insn_code = CODE_FOR_$(add$acc$)",
 162   "bcc_gen_fctn[$C] = gen_$(b$c$)",
 163   "setcc_gen_code[$C] = CODE_FOR_$(s$c$)",
 164   "movcc_gen_code[$A] = CODE_FOR_$(mov$acc$)",
 165   "cbranch_optab->handlers[$A].insn_code = CODE_FOR_$(cbranch$a4$)",
 166   "cmov_optab->handlers[$A].insn_code = CODE_FOR_$(cmov$a6$)",
 167   "cstore_optab->handlers[$A].insn_code = CODE_FOR_$(cstore$a4$)",
 168   "push_optab->handlers[$A].insn_code = CODE_FOR_$(push$a1$)",
 169   "reload_in_optab[$A] = CODE_FOR_$(reload_in$a$)",
 170   "reload_out_optab[$A] = CODE_FOR_$(reload_out$a$)",
 171   "movmem_optab[$A] = CODE_FOR_$(movmem$a$)",
 172   "cmpstr_optab[$A] = CODE_FOR_$(cmpstr$a$)",
 173   "cmpstrn_optab[$A] = CODE_FOR_$(cmpstrn$a$)",
 174   "cmpmem_optab[$A] = CODE_FOR_$(cmpmem$a$)",
 175   "setmem_optab[$A] = CODE_FOR_$(setmem$a$)",
 176   "sync_add_optab[$A] = CODE_FOR_$(sync_add$I$a$)",
 177   "sync_sub_optab[$A] = CODE_FOR_$(sync_sub$I$a$)",
 178   "sync_ior_optab[$A] = CODE_FOR_$(sync_ior$I$a$)",
 179   "sync_and_optab[$A] = CODE_FOR_$(sync_and$I$a$)",
 180   "sync_xor_optab[$A] = CODE_FOR_$(sync_xor$I$a$)",
 181   "sync_nand_optab[$A] = CODE_FOR_$(sync_nand$I$a$)",
 182   "sync_old_add_optab[$A] = CODE_FOR_$(sync_old_add$I$a$)",
 183   "sync_old_sub_optab[$A] = CODE_FOR_$(sync_old_sub$I$a$)",
 184   "sync_old_ior_optab[$A] = CODE_FOR_$(sync_old_ior$I$a$)",
 185   "sync_old_and_optab[$A] = CODE_FOR_$(sync_old_and$I$a$)",
 186   "sync_old_xor_optab[$A] = CODE_FOR_$(sync_old_xor$I$a$)",
 187   "sync_old_nand_optab[$A] = CODE_FOR_$(sync_old_nand$I$a$)",
 188   "sync_new_add_optab[$A] = CODE_FOR_$(sync_new_add$I$a$)",
 189   "sync_new_sub_optab[$A] = CODE_FOR_$(sync_new_sub$I$a$)",
 190   "sync_new_ior_optab[$A] = CODE_FOR_$(sync_new_ior$I$a$)",
 191   "sync_new_and_optab[$A] = CODE_FOR_$(sync_new_and$I$a$)",
 192   "sync_new_xor_optab[$A] = CODE_FOR_$(sync_new_xor$I$a$)",
 193   "sync_new_nand_optab[$A] = CODE_FOR_$(sync_new_nand$I$a$)",
 194   "sync_compare_and_swap[$A] = CODE_FOR_$(sync_compare_and_swap$I$a$)",
 195   "sync_compare_and_swap_cc[$A] = CODE_FOR_$(sync_compare_and_swap_cc$I$a$)",
 196   "sync_lock_test_and_set[$A] = CODE_FOR_$(sync_lock_test_and_set$I$a$)",
 197   "sync_lock_release[$A] = CODE_FOR_$(sync_lock_release$I$a$)",
 198   "vec_set_optab->handlers[$A].insn_code = CODE_FOR_$(vec_set$a$)",
 199   "vec_extract_optab->handlers[$A].insn_code = CODE_FOR_$(vec_extract$a$)",
 200   "vec_init_optab->handlers[$A].insn_code = CODE_FOR_$(vec_init$a$)",
 201   "vec_shl_optab->handlers[$A].insn_code = CODE_FOR_$(vec_shl_$a$)",
 202   "vec_shr_optab->handlers[$A].insn_code = CODE_FOR_$(vec_shr_$a$)",
 203   "vec_realign_load_optab->handlers[$A].insn_code = CODE_FOR_$(vec_realign_load_$a$)",
 204   "vcond_gen_code[$A] = CODE_FOR_$(vcond$a$)",
 205   "vcondu_gen_code[$A] = CODE_FOR_$(vcondu$a$)",
 206   "ssum_widen_optab->handlers[$A].insn_code = CODE_FOR_$(widen_ssum$I$a3$)",
 207   "usum_widen_optab->handlers[$A].insn_code = CODE_FOR_$(widen_usum$I$a3$)",
 208   "udot_prod_optab->handlers[$A].insn_code = CODE_FOR_$(udot_prod$I$a$)",
 209   "sdot_prod_optab->handlers[$A].insn_code = CODE_FOR_$(sdot_prod$I$a$)",
 210   "reduc_smax_optab->handlers[$A].insn_code = CODE_FOR_$(reduc_smax_$a$)",
 211   "reduc_umax_optab->handlers[$A].insn_code = CODE_FOR_$(reduc_umax_$a$)",
 212   "reduc_smin_optab->handlers[$A].insn_code = CODE_FOR_$(reduc_smin_$a$)",
 213   "reduc_umin_optab->handlers[$A].insn_code = CODE_FOR_$(reduc_umin_$a$)",
 214   "reduc_splus_optab->handlers[$A].insn_code = CODE_FOR_$(reduc_splus_$a$)" ,
 215   "reduc_uplus_optab->handlers[$A].insn_code = CODE_FOR_$(reduc_uplus_$a$)"
 216 };
 217
 218 static void gen_insn (rtx);
 219
 220 static void
 221 gen_insn (rtx insn)
 222 {
 223   const char *name = XSTR (insn, 0);
 224   int m1 = 0, m2 = 0, op = 0;
 225   size_t pindex;
 226   int i;
 227   const char *np, *pp, *p, *q;
 228
 229   /* Don't mention instructions whose names are the null string.
 230      They are in the machine description just to be recognized.  */
 231   if (*name == 0)
 232     return;
 233
 234   /* See if NAME matches one of the patterns we have for the optabs we know
 235      about.  */
 236
 237   for (pindex = 0; pindex < ARRAY_SIZE (optabs); pindex++)
 238     {
 239       int force_float = 0, force_int = 0, force_partial_int = 0;
 240       int force_consec = 0;
 241       int matches = 1;
 242
 243       for (pp = optabs[pindex]; pp[0] != '$' || pp[1] != '('; pp++)
 244         ;
 245
 246       for (pp += 2, np = name; matches && ! (pp[0] == '$' && pp[1] == ')');
 247            pp++)
 248         {
 249           if (*pp != '$')
 250             {
 251               if (*pp != *np++)
 252                 break;
 253             }
 254           else
 255             switch (*++pp)
 256               {
 257               case 'N':
 258                 force_consec = 1;
 259                 break;
 260               case 'I':
 261                 force_int = 1;
 262                 break;
 263               case 'P':
 264                 force_partial_int = 1;
 265                 break;
 266               case 'F':
 267                 force_float = 1;
 268                 break;
 269               case 'V':
 270                 break;
 271               case 'c':
 272                 for (op = 0; op < NUM_RTX_CODE; op++)
 273                   {
 274                     for (p = GET_RTX_NAME(op), q = np; *p; p++, q++)
 275                       if (*p != *q)
 276                         break;
 277
 278                     /* We have to be concerned about matching "gt" and
 279                        missing "gtu", e.g., so verify we have reached the
 280                        end of thing we are to match.  */
 281                     if (*p == 0 && *q == 0
 282                         && (GET_RTX_CLASS (op) == RTX_COMPARE
 283                             || GET_RTX_CLASS (op) == RTX_COMM_COMPARE))
 284                       break;
 285                   }
 286
 287                 if (op == NUM_RTX_CODE)
 288                   matches = 0;
 289                 else
 290                   np += strlen (GET_RTX_NAME(op));
 291                 break;
 292               case 'a':
 293               case 'b':
 294                 /* This loop will stop at the first prefix match, so
 295                    look through the modes in reverse order, in case
 296                    there are extra CC modes and CC is a prefix of the
 297                    CC modes (as it should be).  */
 298                 for (i = (MAX_MACHINE_MODE) - 1; i >= 0; i--)
 299                   {
 300                     for (p = GET_MODE_NAME(i), q = np; *p; p++, q++)
 301                       if (TOLOWER (*p) != *q)
 302                         break;
 303
 304                     if (*p == 0
 305                         && (! force_int || mode_class[i] == MODE_INT
 306                             || mode_class[i] == MODE_VECTOR_INT)
 307                         && (! force_partial_int
 308                             || mode_class[i] == MODE_INT
 309                             || mode_class[i] == MODE_PARTIAL_INT
 310                             || mode_class[i] == MODE_VECTOR_INT)
 311                         && (! force_float
 312                             || mode_class[i] == MODE_FLOAT
 313                             || mode_class[i] == MODE_DECIMAL_FLOAT
 314                             || mode_class[i] == MODE_COMPLEX_FLOAT
 315                             || mode_class[i] == MODE_VECTOR_FLOAT))
 316                       break;
 317                   }
 318
 319                 if (i < 0)
 320                   matches = 0;
 321                 else if (*pp == 'a')
 322                   m1 = i, np += strlen (GET_MODE_NAME(i));
 323                 else
 324                   m2 = i, np += strlen (GET_MODE_NAME(i));
 325
 326                 force_int = force_partial_int = force_float = 0;
 327                 break;
 328
 329               default:
 330                 gcc_unreachable ();
 331               }
 332         }
 333
 334       if (matches && pp[0] == '$' && pp[1] == ')'
 335           && *np == 0
 336           && (! force_consec || (int) GET_MODE_WIDER_MODE(m1) == m2))
 337         break;
 338     }
 339
 340   if (pindex == ARRAY_SIZE (optabs))
 341     return;
 342
 343   /* We found a match.  If this pattern is only conditionally present,
 344      write out the "if" and two extra blanks.  */
 345
 346   if (*XSTR (insn, 2) != 0)
 347     printf ("  if (HAVE_%s)\n  ", name);
 348
 349   printf ("  ");
 350
 351   /* Now write out the initialization, making all required substitutions.  */
 352   for (pp = optabs[pindex]; *pp; pp++)
 353     {
 354       if (*pp != '$')
 355         putchar (*pp);
 356       else
 357         switch (*++pp)
 358           {
 359           case '(':  case ')':
 360           case 'I':  case 'F':  case 'N':
 361             break;
 362           case 'V':
 363             if (SCALAR_FLOAT_MODE_P (m1))
 364               printf ("v");
 365             break;
 366           case 'a':
 367             for (np = GET_MODE_NAME(m1); *np; np++)
 368               putchar (TOLOWER (*np));
 369             break;
 370           case 'b':
 371             for (np = GET_MODE_NAME(m2); *np; np++)
 372               putchar (TOLOWER (*np));
 373             break;
 374           case 'A':
 375             printf ("%smode", GET_MODE_NAME(m1));
 376             break;
 377           case 'B':
 378             printf ("%smode", GET_MODE_NAME(m2));
 379             break;
 380           case 'c':
 381             printf ("%s", GET_RTX_NAME(op));
 382             break;
 383           case 'C':
 384             for (np = GET_RTX_NAME(op); *np; np++)
 385               putchar (TOUPPER (*np));
 386             break;
 387           }
 388     }
 389
 390   printf (";\n");
 391 }
 392
 393 extern int main (int, char **);
 394
 395 int
 396 main (int argc, char **argv)
 397 {
 398   rtx desc;
 399
 400   progname = "genopinit";
 401
 402   if (init_md_reader_args (argc, argv) != SUCCESS_EXIT_CODE)
 403     return (FATAL_EXIT_CODE);
 404
 405   printf ("/* Generated automatically by the program `genopinit'\n\
 406 from the machine description file `md'.  */\n\n");
 407
 408   printf ("#include \"config.h\"\n");
 409   printf ("#include \"system.h\"\n");
 410   printf ("#include \"coretypes.h\"\n");
 411   printf ("#include \"tm.h\"\n");
 412   printf ("#include \"rtl.h\"\n");
 413   printf ("#include \"flags.h\"\n");
 414   printf ("#include \"insn-config.h\"\n");
 415   printf ("#include \"recog.h\"\n");
 416   printf ("#include \"expr.h\"\n");
 417   printf ("#include \"optabs.h\"\n");
 418   printf ("#include \"reload.h\"\n\n");
 419
 420   printf ("void\ninit_all_optabs (void)\n{\n");
 421
 422   puts ("\
 423 #ifdef FIXUNS_TRUNC_LIKE_FIX_TRUNC\n\
 424   int i, j;\n\
 425 #endif\n");
 426
 427   /* Read the machine description.  */
 428
 429   while (1)
 430     {
 431       int line_no, insn_code_number = 0;
 432
 433       desc = read_md_rtx (&line_no, &insn_code_number);
 434       if (desc == NULL)
 435         break;
 436
 437       if (GET_CODE (desc) == DEFINE_INSN || GET_CODE (desc) == DEFINE_EXPAND)
 438         gen_insn (desc);
 439     }
 440
 441   puts ("\
 442 \n\
 443 #ifdef FIXUNS_TRUNC_LIKE_FIX_TRUNC\n\
 444   /* This flag says the same insns that convert to a signed fixnum\n\
 445      also convert validly to an unsigned one.  */\n\
 446   for (i = 0; i < NUM_MACHINE_MODES; i++)\n\
 447     for (j = 0; j < NUM_MACHINE_MODES; j++)\n\
 448       ufixtrunc_optab->handlers[i][j].insn_code\n\
 449       = sfixtrunc_optab->handlers[i][j].insn_code;\n\
 450 #endif\n\
 451 }");
 452
 453   fflush (stdout);
 454   return (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);
 455 }