contrib/gcc-4.1/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 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   "sdiv_optab->handlers[$A].insn_code = CODE_FOR_$(div$a3$)",
  88   "sdivv_optab->handlers[$A].insn_code = CODE_FOR_$(div$V$I$a3$)",
  89   "udiv_optab->handlers[$A].insn_code = CODE_FOR_$(udiv$I$a3$)",
  90   "sdivmod_optab->handlers[$A].insn_code = CODE_FOR_$(divmod$a4$)",
  91   "udivmod_optab->handlers[$A].insn_code = CODE_FOR_$(udivmod$a4$)",
  92   "smod_optab->handlers[$A].insn_code = CODE_FOR_$(mod$a3$)",
  93   "umod_optab->handlers[$A].insn_code = CODE_FOR_$(umod$a3$)",
  94   "fmod_optab->handlers[$A].insn_code = CODE_FOR_$(fmod$a3$)",
  95   "drem_optab->handlers[$A].insn_code = CODE_FOR_$(drem$a3$)",
  96   "ftrunc_optab->handlers[$A].insn_code = CODE_FOR_$(ftrunc$F$a2$)",
  97   "and_optab->handlers[$A].insn_code = CODE_FOR_$(and$a3$)",
  98   "ior_optab->handlers[$A].insn_code = CODE_FOR_$(ior$a3$)",
  99   "xor_optab->handlers[$A].insn_code = CODE_FOR_$(xor$a3$)",
 100   "ashl_optab->handlers[$A].insn_code = CODE_FOR_$(ashl$a3$)",
 101   "ashr_optab->handlers[$A].insn_code = CODE_FOR_$(ashr$a3$)",
 102   "lshr_optab->handlers[$A].insn_code = CODE_FOR_$(lshr$a3$)",
 103   "rotl_optab->handlers[$A].insn_code = CODE_FOR_$(rotl$a3$)",
 104   "rotr_optab->handlers[$A].insn_code = CODE_FOR_$(rotr$a3$)",
 105   "smin_optab->handlers[$A].insn_code = CODE_FOR_$(smin$a3$)",
 106   "smax_optab->handlers[$A].insn_code = CODE_FOR_$(smax$a3$)",
 107   "umin_optab->handlers[$A].insn_code = CODE_FOR_$(umin$I$a3$)",
 108   "umax_optab->handlers[$A].insn_code = CODE_FOR_$(umax$I$a3$)",
 109   "pow_optab->handlers[$A].insn_code = CODE_FOR_$(pow$a3$)",
 110   "atan2_optab->handlers[$A].insn_code = CODE_FOR_$(atan2$a3$)",
 111   "neg_optab->handlers[$A].insn_code = CODE_FOR_$(neg$P$a2$)",
 112   "negv_optab->handlers[$A].insn_code =\n\
 113     neg_optab->handlers[$A].insn_code = CODE_FOR_$(neg$F$a2$)",
 114   "negv_optab->handlers[$A].insn_code = CODE_FOR_$(negv$I$a2$)",
 115   "abs_optab->handlers[$A].insn_code = CODE_FOR_$(abs$P$a2$)",
 116   "absv_optab->handlers[$A].insn_code =\n\
 117     abs_optab->handlers[$A].insn_code = CODE_FOR_$(abs$F$a2$)",
 118   "absv_optab->handlers[$A].insn_code = CODE_FOR_$(absv$I$a2$)",
 119   "copysign_optab->handlers[$A].insn_code = CODE_FOR_$(copysign$F$a3$)",
 120   "sqrt_optab->handlers[$A].insn_code = CODE_FOR_$(sqrt$a2$)",
 121   "floor_optab->handlers[$A].insn_code = CODE_FOR_$(floor$a2$)",
 122   "lfloor_optab->handlers[$A].insn_code = CODE_FOR_$(lfloor$a2$)",
 123   "ceil_optab->handlers[$A].insn_code = CODE_FOR_$(ceil$a2$)",
 124   "lceil_optab->handlers[$A].insn_code = CODE_FOR_$(lceil$a2$)",
 125   "round_optab->handlers[$A].insn_code = CODE_FOR_$(round$a2$)",
 126   "btrunc_optab->handlers[$A].insn_code = CODE_FOR_$(btrunc$a2$)",
 127   "nearbyint_optab->handlers[$A].insn_code = CODE_FOR_$(nearbyint$a2$)",
 128   "rint_optab->handlers[$A].insn_code = CODE_FOR_$(rint$a2$)",
 129   "lrint_optab->handlers[$A].insn_code = CODE_FOR_$(lrint$a2$)",
 130   "sincos_optab->handlers[$A].insn_code = CODE_FOR_$(sincos$a3$)",
 131   "sin_optab->handlers[$A].insn_code = CODE_FOR_$(sin$a2$)",
 132   "asin_optab->handlers[$A].insn_code = CODE_FOR_$(asin$a2$)",
 133   "cos_optab->handlers[$A].insn_code = CODE_FOR_$(cos$a2$)",
 134   "acos_optab->handlers[$A].insn_code = CODE_FOR_$(acos$a2$)",
 135   "exp_optab->handlers[$A].insn_code = CODE_FOR_$(exp$a2$)",
 136   "exp10_optab->handlers[$A].insn_code = CODE_FOR_$(exp10$a2$)",
 137   "exp2_optab->handlers[$A].insn_code = CODE_FOR_$(exp2$a2$)",
 138   "expm1_optab->handlers[$A].insn_code = CODE_FOR_$(expm1$a2$)",
 139   "ldexp_optab->handlers[$A].insn_code = CODE_FOR_$(ldexp$a3$)",
 140   "logb_optab->handlers[$A].insn_code = CODE_FOR_$(logb$a2$)",
 141   "ilogb_optab->handlers[$A].insn_code = CODE_FOR_$(ilogb$a2$)",
 142   "log_optab->handlers[$A].insn_code = CODE_FOR_$(log$a2$)",
 143   "log10_optab->handlers[$A].insn_code = CODE_FOR_$(log10$a2$)",
 144   "log2_optab->handlers[$A].insn_code = CODE_FOR_$(log2$a2$)",
 145   "log1p_optab->handlers[$A].insn_code = CODE_FOR_$(log1p$a2$)",
 146   "tan_optab->handlers[$A].insn_code = CODE_FOR_$(tan$a2$)",
 147   "atan_optab->handlers[$A].insn_code = CODE_FOR_$(atan$a2$)",
 148   "strlen_optab->handlers[$A].insn_code = CODE_FOR_$(strlen$a$)",
 149   "one_cmpl_optab->handlers[$A].insn_code = CODE_FOR_$(one_cmpl$a2$)",
 150   "ffs_optab->handlers[$A].insn_code = CODE_FOR_$(ffs$a2$)",
 151   "clz_optab->handlers[$A].insn_code = CODE_FOR_$(clz$a2$)",
 152   "ctz_optab->handlers[$A].insn_code = CODE_FOR_$(ctz$a2$)",
 153   "popcount_optab->handlers[$A].insn_code = CODE_FOR_$(popcount$a2$)",
 154   "parity_optab->handlers[$A].insn_code = CODE_FOR_$(parity$a2$)",
 155   "mov_optab->handlers[$A].insn_code = CODE_FOR_$(mov$a$)",
 156   "movstrict_optab->handlers[$A].insn_code = CODE_FOR_$(movstrict$a$)",
 157   "movmisalign_optab->handlers[$A].insn_code = CODE_FOR_$(movmisalign$a$)",
 158   "cmp_optab->handlers[$A].insn_code = CODE_FOR_$(cmp$a$)",
 159   "tst_optab->handlers[$A].insn_code = CODE_FOR_$(tst$a$)",
 160   "addcc_optab->handlers[$A].insn_code = CODE_FOR_$(add$acc$)",
 161   "bcc_gen_fctn[$C] = gen_$(b$c$)",
 162   "setcc_gen_code[$C] = CODE_FOR_$(s$c$)",
 163   "movcc_gen_code[$A] = CODE_FOR_$(mov$acc$)",
 164   "cbranch_optab->handlers[$A].insn_code = CODE_FOR_$(cbranch$a4$)",
 165   "cmov_optab->handlers[$A].insn_code = CODE_FOR_$(cmov$a6$)",
 166   "cstore_optab->handlers[$A].insn_code = CODE_FOR_$(cstore$a4$)",
 167   "push_optab->handlers[$A].insn_code = CODE_FOR_$(push$a1$)",
 168   "reload_in_optab[$A] = CODE_FOR_$(reload_in$a$)",
 169   "reload_out_optab[$A] = CODE_FOR_$(reload_out$a$)",
 170   "movmem_optab[$A] = CODE_FOR_$(movmem$a$)",
 171   "cmpstr_optab[$A] = CODE_FOR_$(cmpstr$a$)",
 172   "cmpstrn_optab[$A] = CODE_FOR_$(cmpstrn$a$)",
 173   "cmpmem_optab[$A] = CODE_FOR_$(cmpmem$a$)",
 174   "setmem_optab[$A] = CODE_FOR_$(setmem$a$)",
 175   "sync_add_optab[$A] = CODE_FOR_$(sync_add$I$a$)",
 176   "sync_sub_optab[$A] = CODE_FOR_$(sync_sub$I$a$)",
 177   "sync_ior_optab[$A] = CODE_FOR_$(sync_ior$I$a$)",
 178   "sync_and_optab[$A] = CODE_FOR_$(sync_and$I$a$)",
 179   "sync_xor_optab[$A] = CODE_FOR_$(sync_xor$I$a$)",
 180   "sync_nand_optab[$A] = CODE_FOR_$(sync_nand$I$a$)",
 181   "sync_old_add_optab[$A] = CODE_FOR_$(sync_old_add$I$a$)",
 182   "sync_old_sub_optab[$A] = CODE_FOR_$(sync_old_sub$I$a$)",
 183   "sync_old_ior_optab[$A] = CODE_FOR_$(sync_old_ior$I$a$)",
 184   "sync_old_and_optab[$A] = CODE_FOR_$(sync_old_and$I$a$)",
 185   "sync_old_xor_optab[$A] = CODE_FOR_$(sync_old_xor$I$a$)",
 186   "sync_old_nand_optab[$A] = CODE_FOR_$(sync_old_nand$I$a$)",
 187   "sync_new_add_optab[$A] = CODE_FOR_$(sync_new_add$I$a$)",
 188   "sync_new_sub_optab[$A] = CODE_FOR_$(sync_new_sub$I$a$)",
 189   "sync_new_ior_optab[$A] = CODE_FOR_$(sync_new_ior$I$a$)",
 190   "sync_new_and_optab[$A] = CODE_FOR_$(sync_new_and$I$a$)",
 191   "sync_new_xor_optab[$A] = CODE_FOR_$(sync_new_xor$I$a$)",
 192   "sync_new_nand_optab[$A] = CODE_FOR_$(sync_new_nand$I$a$)",
 193   "sync_compare_and_swap[$A] = CODE_FOR_$(sync_compare_and_swap$I$a$)",
 194   "sync_compare_and_swap_cc[$A] = CODE_FOR_$(sync_compare_and_swap_cc$I$a$)",
 195   "sync_lock_test_and_set[$A] = CODE_FOR_$(sync_lock_test_and_set$I$a$)",
 196   "sync_lock_release[$A] = CODE_FOR_$(sync_lock_release$I$a$)",
 197   "vec_set_optab->handlers[$A].insn_code = CODE_FOR_$(vec_set$a$)",
 198   "vec_extract_optab->handlers[$A].insn_code = CODE_FOR_$(vec_extract$a$)",
 199   "vec_init_optab->handlers[$A].insn_code = CODE_FOR_$(vec_init$a$)",
 200   "vec_shl_optab->handlers[$A].insn_code = CODE_FOR_$(vec_shl_$a$)",
 201   "vec_shr_optab->handlers[$A].insn_code = CODE_FOR_$(vec_shr_$a$)",
 202   "vec_realign_load_optab->handlers[$A].insn_code = CODE_FOR_$(vec_realign_load_$a$)",
 203   "vcond_gen_code[$A] = CODE_FOR_$(vcond$a$)",
 204   "vcondu_gen_code[$A] = CODE_FOR_$(vcondu$a$)",
 205   "reduc_smax_optab->handlers[$A].insn_code = CODE_FOR_$(reduc_smax_$a$)",
 206   "reduc_umax_optab->handlers[$A].insn_code = CODE_FOR_$(reduc_umax_$a$)",
 207   "reduc_smin_optab->handlers[$A].insn_code = CODE_FOR_$(reduc_smin_$a$)",
 208   "reduc_umin_optab->handlers[$A].insn_code = CODE_FOR_$(reduc_umin_$a$)",
 209   "reduc_splus_optab->handlers[$A].insn_code = CODE_FOR_$(reduc_splus_$a$)" ,
 210   "reduc_uplus_optab->handlers[$A].insn_code = CODE_FOR_$(reduc_uplus_$a$)"
 211 };
 212
 213 static void gen_insn (rtx);
 214
 215 static void
 216 gen_insn (rtx insn)
 217 {
 218   const char *name = XSTR (insn, 0);
 219   int m1 = 0, m2 = 0, op = 0;
 220   size_t pindex;
 221   int i;
 222   const char *np, *pp, *p, *q;
 223
 224   /* Don't mention instructions whose names are the null string.
 225      They are in the machine description just to be recognized.  */
 226   if (*name == 0)
 227     return;
 228
 229   /* See if NAME matches one of the patterns we have for the optabs we know
 230      about.  */
 231
 232   for (pindex = 0; pindex < ARRAY_SIZE (optabs); pindex++)
 233     {
 234       int force_float = 0, force_int = 0, force_partial_int = 0;
 235       int force_consec = 0;
 236       int matches = 1;
 237
 238       for (pp = optabs[pindex]; pp[0] != '$' || pp[1] != '('; pp++)
 239         ;
 240
 241       for (pp += 2, np = name; matches && ! (pp[0] == '$' && pp[1] == ')');
 242            pp++)
 243         {
 244           if (*pp != '$')
 245             {
 246               if (*pp != *np++)
 247                 break;
 248             }
 249           else
 250             switch (*++pp)
 251               {
 252               case 'N':
 253                 force_consec = 1;
 254                 break;
 255               case 'I':
 256                 force_int = 1;
 257                 break;
 258               case 'P':
 259                 force_partial_int = 1;
 260                 break;
 261               case 'F':
 262                 force_float = 1;
 263                 break;
 264               case 'V':
 265                 break;
 266               case 'c':
 267                 for (op = 0; op < NUM_RTX_CODE; op++)
 268                   {
 269                     for (p = GET_RTX_NAME(op), q = np; *p; p++, q++)
 270                       if (*p != *q)
 271                         break;
 272
 273                     /* We have to be concerned about matching "gt" and
 274                        missing "gtu", e.g., so verify we have reached the
 275                        end of thing we are to match.  */
 276                     if (*p == 0 && *q == 0
 277                         && (GET_RTX_CLASS (op) == RTX_COMPARE
 278                             || GET_RTX_CLASS (op) == RTX_COMM_COMPARE))
 279                       break;
 280                   }
 281
 282                 if (op == NUM_RTX_CODE)
 283                   matches = 0;
 284                 else
 285                   np += strlen (GET_RTX_NAME(op));
 286                 break;
 287               case 'a':
 288               case 'b':
 289                 /* This loop will stop at the first prefix match, so
 290                    look through the modes in reverse order, in case
 291                    there are extra CC modes and CC is a prefix of the
 292                    CC modes (as it should be).  */
 293                 for (i = (MAX_MACHINE_MODE) - 1; i >= 0; i--)
 294                   {
 295                     for (p = GET_MODE_NAME(i), q = np; *p; p++, q++)
 296                       if (TOLOWER (*p) != *q)
 297                         break;
 298
 299                     if (*p == 0
 300                         && (! force_int || mode_class[i] == MODE_INT
 301                             || mode_class[i] == MODE_VECTOR_INT)
 302                         && (! force_partial_int
 303                             || mode_class[i] == MODE_INT
 304                             || mode_class[i] == MODE_PARTIAL_INT
 305                             || mode_class[i] == MODE_VECTOR_INT)
 306                         && (! force_float || mode_class[i] == MODE_FLOAT
 307                             || mode_class[i] == MODE_COMPLEX_FLOAT
 308                             || mode_class[i] == MODE_VECTOR_FLOAT))
 309                       break;
 310                   }
 311
 312                 if (i < 0)
 313                   matches = 0;
 314                 else if (*pp == 'a')
 315                   m1 = i, np += strlen (GET_MODE_NAME(i));
 316                 else
 317                   m2 = i, np += strlen (GET_MODE_NAME(i));
 318
 319                 force_int = force_partial_int = force_float = 0;
 320                 break;
 321
 322               default:
 323                 gcc_unreachable ();
 324               }
 325         }
 326
 327       if (matches && pp[0] == '$' && pp[1] == ')'
 328           && *np == 0
 329           && (! force_consec || (int) GET_MODE_WIDER_MODE(m1) == m2))
 330         break;
 331     }
 332
 333   if (pindex == ARRAY_SIZE (optabs))
 334     return;
 335
 336   /* We found a match.  If this pattern is only conditionally present,
 337      write out the "if" and two extra blanks.  */
 338
 339   if (*XSTR (insn, 2) != 0)
 340     printf ("  if (HAVE_%s)\n  ", name);
 341
 342   printf ("  ");
 343
 344   /* Now write out the initialization, making all required substitutions.  */
 345   for (pp = optabs[pindex]; *pp; pp++)
 346     {
 347       if (*pp != '$')
 348         putchar (*pp);
 349       else
 350         switch (*++pp)
 351           {
 352           case '(':  case ')':
 353           case 'I':  case 'F':  case 'N':
 354             break;
 355           case 'V':
 356             if (GET_MODE_CLASS (m1) == MODE_FLOAT)
 357               printf ("v");
 358             break;
 359           case 'a':
 360             for (np = GET_MODE_NAME(m1); *np; np++)
 361               putchar (TOLOWER (*np));
 362             break;
 363           case 'b':
 364             for (np = GET_MODE_NAME(m2); *np; np++)
 365               putchar (TOLOWER (*np));
 366             break;
 367           case 'A':
 368             printf ("%smode", GET_MODE_NAME(m1));
 369             break;
 370           case 'B':
 371             printf ("%smode", GET_MODE_NAME(m2));
 372             break;
 373           case 'c':
 374             printf ("%s", GET_RTX_NAME(op));
 375             break;
 376           case 'C':
 377             for (np = GET_RTX_NAME(op); *np; np++)
 378               putchar (TOUPPER (*np));
 379             break;
 380           }
 381     }
 382
 383   printf (";\n");
 384 }
 385
 386 extern int main (int, char **);
 387
 388 int
 389 main (int argc, char **argv)
 390 {
 391   rtx desc;
 392
 393   progname = "genopinit";
 394
 395   if (init_md_reader_args (argc, argv) != SUCCESS_EXIT_CODE)
 396     return (FATAL_EXIT_CODE);
 397
 398   printf ("/* Generated automatically by the program `genopinit'\n\
 399 from the machine description file `md'.  */\n\n");
 400
 401   printf ("#include \"config.h\"\n");
 402   printf ("#include \"system.h\"\n");
 403   printf ("#include \"coretypes.h\"\n");
 404   printf ("#include \"tm.h\"\n");
 405   printf ("#include \"rtl.h\"\n");
 406   printf ("#include \"flags.h\"\n");
 407   printf ("#include \"insn-config.h\"\n");
 408   printf ("#include \"recog.h\"\n");
 409   printf ("#include \"expr.h\"\n");
 410   printf ("#include \"optabs.h\"\n");
 411   printf ("#include \"reload.h\"\n\n");
 412
 413   printf ("void\ninit_all_optabs (void)\n{\n");
 414
 415   puts ("\
 416 #ifdef FIXUNS_TRUNC_LIKE_FIX_TRUNC\n\
 417   int i, j;\n\
 418 #endif\n");
 419
 420   /* Read the machine description.  */
 421
 422   while (1)
 423     {
 424       int line_no, insn_code_number = 0;
 425
 426       desc = read_md_rtx (&line_no, &insn_code_number);
 427       if (desc == NULL)
 428         break;
 429
 430       if (GET_CODE (desc) == DEFINE_INSN || GET_CODE (desc) == DEFINE_EXPAND)
 431         gen_insn (desc);
 432     }
 433
 434   puts ("\
 435 \n\
 436 #ifdef FIXUNS_TRUNC_LIKE_FIX_TRUNC\n\
 437   /* This flag says the same insns that convert to a signed fixnum\n\
 438      also convert validly to an unsigned one.  */\n\
 439   for (i = 0; i < NUM_MACHINE_MODES; i++)\n\
 440     for (j = 0; j < NUM_MACHINE_MODES; j++)\n\
 441       ufixtrunc_optab->handlers[i][j].insn_code\n\
 442       = sfixtrunc_optab->handlers[i][j].insn_code;\n\
 443 #endif\n\
 444 }");
 445
 446   fflush (stdout);
 447   return (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);
 448 }
 449
 450 /* Define this so we can link with print-rtl.o to get debug_rtx function.  */
 451 const char *
 452 get_insn_name (int code ATTRIBUTE_UNUSED)
 453 {
 454   return NULL;
 455 }