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, 2007 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 3, 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 COPYING3.  If not see
  19 <http://www.gnu.org/licenses/>.  */
  20
  21
  22 #include "bconfig.h"
  23 #include "system.h"
  24 #include "coretypes.h"
  25 #include "tm.h"
  26 #include "rtl.h"
  27 #include "errors.h"
  28 #include "gensupport.h"
  29
  30
  31 /* Many parts of GCC use arrays that are indexed by machine mode and
  32    contain the insn codes for pattern in the MD file that perform a given
  33    operation on operands of that mode.
  34
  35    These patterns are present in the MD file with names that contain
  36    the mode(s) used and the name of the operation.  This program
  37    writes a function `init_all_optabs' that initializes the optabs with
  38    all the insn codes of the relevant patterns present in the MD file.
  39
  40    This array contains a list of optabs that need to be initialized.  Within
  41    each string, the name of the pattern to be matched against is delimited
  42    with $( and $).  In the string, $a and $b are used to match a short mode
  43    name (the part of the mode name not including `mode' and converted to
  44    lower-case).  When writing out the initializer, the entire string is
  45    used.  $A and $B are replaced with the full name of the mode; $a and $b
  46    are replaced with the short form of the name, as above.
  47
  48    If $N is present in the pattern, it means the two modes must be consecutive
  49    widths in the same mode class (e.g, QImode and HImode).  $I means that
  50    only full integer modes should be considered for the next mode, and $F
  51    means that only float modes should be considered.
  52    $P means that both full and partial integer modes should be considered.
  53    $Q means that only fixed-point 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 { "convert_optab_handler (sext_optab, $B, $A)->insn_code = CODE_FOR_$(extend$a$b2$)",
  63   "convert_optab_handler (zext_optab, $B, $A)->insn_code = CODE_FOR_$(zero_extend$a$b2$)",
  64   "convert_optab_handler (sfix_optab, $B, $A)->insn_code = CODE_FOR_$(fix$F$a$I$b2$)",
  65   "convert_optab_handler (ufix_optab, $B, $A)->insn_code = CODE_FOR_$(fixuns$F$a$b2$)",
  66   "convert_optab_handler (sfixtrunc_optab, $B, $A)->insn_code = CODE_FOR_$(fix_trunc$F$a$I$b2$)",
  67   "convert_optab_handler (ufixtrunc_optab, $B, $A)->insn_code = CODE_FOR_$(fixuns_trunc$F$a$I$b2$)",
  68   "convert_optab_handler (sfloat_optab, $B, $A)->insn_code = CODE_FOR_$(float$I$a$F$b2$)",
  69   "convert_optab_handler (ufloat_optab, $B, $A)->insn_code = CODE_FOR_$(floatuns$I$a$F$b2$)",
  70   "convert_optab_handler (trunc_optab, $B, $A)->insn_code = CODE_FOR_$(trunc$a$b2$)",
  71   "convert_optab_handler (fract_optab, $B, $A)->insn_code = CODE_FOR_$(fract$a$b2$)",
  72   "convert_optab_handler (fractuns_optab, $B, $A)->insn_code = CODE_FOR_$(fractuns$I$a$Q$b2$)",
  73   "convert_optab_handler (fractuns_optab, $B, $A)->insn_code = CODE_FOR_$(fractuns$Q$a$I$b2$)",
  74   "convert_optab_handler (satfract_optab, $B, $A)->insn_code = CODE_FOR_$(satfract$a$Q$b2$)",
  75   "convert_optab_handler (satfractuns_optab, $B, $A)->insn_code = CODE_FOR_$(satfractuns$I$a$Q$b2$)",
  76   "optab_handler (add_optab, $A)->insn_code = CODE_FOR_$(add$P$a3$)",
  77   "optab_handler (addv_optab, $A)->insn_code =\n\
  78     optab_handler (add_optab, $A)->insn_code = CODE_FOR_$(add$F$a3$)",
  79   "optab_handler (addv_optab, $A)->insn_code = CODE_FOR_$(addv$I$a3$)",
  80   "optab_handler (add_optab, $A)->insn_code = CODE_FOR_$(add$Q$a3$)",
  81   "optab_handler (ssadd_optab, $A)->insn_code = CODE_FOR_$(ssadd$Q$a3$)",
  82   "optab_handler (usadd_optab, $A)->insn_code = CODE_FOR_$(usadd$Q$a3$)",
  83   "optab_handler (sub_optab, $A)->insn_code = CODE_FOR_$(sub$P$a3$)",
  84   "optab_handler (subv_optab, $A)->insn_code =\n\
  85     optab_handler (sub_optab, $A)->insn_code = CODE_FOR_$(sub$F$a3$)",
  86   "optab_handler (subv_optab, $A)->insn_code = CODE_FOR_$(subv$I$a3$)",
  87   "optab_handler (sub_optab, $A)->insn_code = CODE_FOR_$(sub$Q$a3$)",
  88   "optab_handler (sssub_optab, $A)->insn_code = CODE_FOR_$(sssub$Q$a3$)",
  89   "optab_handler (ussub_optab, $A)->insn_code = CODE_FOR_$(ussub$Q$a3$)",
  90   "optab_handler (smul_optab, $A)->insn_code = CODE_FOR_$(mul$Q$a3$)",
  91   "optab_handler (ssmul_optab, $A)->insn_code = CODE_FOR_$(ssmul$Q$a3$)",
  92   "optab_handler (usmul_optab, $A)->insn_code = CODE_FOR_$(usmul$Q$a3$)",
  93   "optab_handler (smul_optab, $A)->insn_code = CODE_FOR_$(mul$P$a3$)",
  94   "optab_handler (smulv_optab, $A)->insn_code =\n\
  95     optab_handler (smul_optab, $A)->insn_code = CODE_FOR_$(mul$F$a3$)",
  96   "optab_handler (smulv_optab, $A)->insn_code = CODE_FOR_$(mulv$I$a3$)",
  97   "optab_handler (umul_highpart_optab, $A)->insn_code = CODE_FOR_$(umul$a3_highpart$)",
  98   "optab_handler (smul_highpart_optab, $A)->insn_code = CODE_FOR_$(smul$a3_highpart$)",
  99   "optab_handler (smul_widen_optab, $B)->insn_code = CODE_FOR_$(mul$a$b3$)$N",
 100   "optab_handler (umul_widen_optab, $B)->insn_code = CODE_FOR_$(umul$a$b3$)$N",
 101   "optab_handler (usmul_widen_optab, $B)->insn_code = CODE_FOR_$(usmul$a$b3$)$N",
 102   "optab_handler (smadd_widen_optab, $B)->insn_code = CODE_FOR_$(madd$a$b4$)$N",
 103   "optab_handler (umadd_widen_optab, $B)->insn_code = CODE_FOR_$(umadd$a$b4$)$N",
 104   "optab_handler (ssmadd_widen_optab, $B)->insn_code = CODE_FOR_$(ssmadd$a$b4$)$N",
 105   "optab_handler (usmadd_widen_optab, $B)->insn_code = CODE_FOR_$(usmadd$a$b4$)$N",
 106   "optab_handler (smsub_widen_optab, $B)->insn_code = CODE_FOR_$(msub$a$b4$)$N",
 107   "optab_handler (umsub_widen_optab, $B)->insn_code = CODE_FOR_$(umsub$a$b4$)$N",
 108   "optab_handler (ssmsub_widen_optab, $B)->insn_code = CODE_FOR_$(ssmsub$a$b4$)$N",
 109   "optab_handler (usmsub_widen_optab, $B)->insn_code = CODE_FOR_$(usmsub$a$b4$)$N",
 110   "optab_handler (sdiv_optab, $A)->insn_code = CODE_FOR_$(div$a3$)",
 111   "optab_handler (ssdiv_optab, $A)->insn_code = CODE_FOR_$(ssdiv$Q$a3$)",
 112   "optab_handler (sdivv_optab, $A)->insn_code = CODE_FOR_$(div$V$I$a3$)",
 113   "optab_handler (udiv_optab, $A)->insn_code = CODE_FOR_$(udiv$I$a3$)",
 114   "optab_handler (udiv_optab, $A)->insn_code = CODE_FOR_$(udiv$Q$a3$)",
 115   "optab_handler (usdiv_optab, $A)->insn_code = CODE_FOR_$(usdiv$Q$a3$)",
 116   "optab_handler (sdivmod_optab, $A)->insn_code = CODE_FOR_$(divmod$a4$)",
 117   "optab_handler (udivmod_optab, $A)->insn_code = CODE_FOR_$(udivmod$a4$)",
 118   "optab_handler (smod_optab, $A)->insn_code = CODE_FOR_$(mod$a3$)",
 119   "optab_handler (umod_optab, $A)->insn_code = CODE_FOR_$(umod$a3$)",
 120   "optab_handler (fmod_optab, $A)->insn_code = CODE_FOR_$(fmod$a3$)",
 121   "optab_handler (remainder_optab, $A)->insn_code = CODE_FOR_$(remainder$a3$)",
 122   "optab_handler (ftrunc_optab, $A)->insn_code = CODE_FOR_$(ftrunc$F$a2$)",
 123   "optab_handler (and_optab, $A)->insn_code = CODE_FOR_$(and$a3$)",
 124   "optab_handler (ior_optab, $A)->insn_code = CODE_FOR_$(ior$a3$)",
 125   "optab_handler (xor_optab, $A)->insn_code = CODE_FOR_$(xor$a3$)",
 126   "optab_handler (ashl_optab, $A)->insn_code = CODE_FOR_$(ashl$a3$)",
 127   "optab_handler (ssashl_optab, $A)->insn_code = CODE_FOR_$(ssashl$Q$a3$)",
 128   "optab_handler (usashl_optab, $A)->insn_code = CODE_FOR_$(usashl$Q$a3$)",
 129   "optab_handler (ashr_optab, $A)->insn_code = CODE_FOR_$(ashr$a3$)",
 130   "optab_handler (lshr_optab, $A)->insn_code = CODE_FOR_$(lshr$a3$)",
 131   "optab_handler (rotl_optab, $A)->insn_code = CODE_FOR_$(rotl$a3$)",
 132   "optab_handler (rotr_optab, $A)->insn_code = CODE_FOR_$(rotr$a3$)",
 133   "optab_handler (smin_optab, $A)->insn_code = CODE_FOR_$(smin$a3$)",
 134   "optab_handler (smax_optab, $A)->insn_code = CODE_FOR_$(smax$a3$)",
 135   "optab_handler (umin_optab, $A)->insn_code = CODE_FOR_$(umin$I$a3$)",
 136   "optab_handler (umax_optab, $A)->insn_code = CODE_FOR_$(umax$I$a3$)",
 137   "optab_handler (pow_optab, $A)->insn_code = CODE_FOR_$(pow$a3$)",
 138   "optab_handler (atan2_optab, $A)->insn_code = CODE_FOR_$(atan2$a3$)",
 139   "optab_handler (neg_optab, $A)->insn_code = CODE_FOR_$(neg$P$a2$)",
 140   "optab_handler (negv_optab, $A)->insn_code =\n\
 141     optab_handler (neg_optab, $A)->insn_code = CODE_FOR_$(neg$F$a2$)",
 142   "optab_handler (negv_optab, $A)->insn_code = CODE_FOR_$(negv$I$a2$)",
 143   "optab_handler (neg_optab, $A)->insn_code = CODE_FOR_$(neg$Q$a2$)",
 144   "optab_handler (ssneg_optab, $A)->insn_code = CODE_FOR_$(ssneg$Q$a2$)",
 145   "optab_handler (usneg_optab, $A)->insn_code = CODE_FOR_$(usneg$Q$a2$)",
 146   "optab_handler (abs_optab, $A)->insn_code = CODE_FOR_$(abs$P$a2$)",
 147   "optab_handler (absv_optab, $A)->insn_code =\n\
 148     optab_handler (abs_optab, $A)->insn_code = CODE_FOR_$(abs$F$a2$)",
 149   "optab_handler (absv_optab, $A)->insn_code = CODE_FOR_$(absv$I$a2$)",
 150   "optab_handler (copysign_optab, $A)->insn_code = CODE_FOR_$(copysign$F$a3$)",
 151   "optab_handler (signbit_optab, $A)->insn_code = CODE_FOR_$(signbit$F$a2$)",
 152   "optab_handler (isinf_optab, $A)->insn_code = CODE_FOR_$(isinf$a2$)",
 153   "optab_handler (sqrt_optab, $A)->insn_code = CODE_FOR_$(sqrt$a2$)",
 154   "optab_handler (floor_optab, $A)->insn_code = CODE_FOR_$(floor$a2$)",
 155   "convert_optab_handler (lfloor_optab, $B, $A)->insn_code = CODE_FOR_$(lfloor$F$a$I$b2$)",
 156   "optab_handler (ceil_optab, $A)->insn_code = CODE_FOR_$(ceil$a2$)",
 157   "convert_optab_handler (lceil_optab, $B, $A)->insn_code = CODE_FOR_$(lceil$F$a$I$b2$)",
 158   "optab_handler (round_optab, $A)->insn_code = CODE_FOR_$(round$a2$)",
 159   "optab_handler (btrunc_optab, $A)->insn_code = CODE_FOR_$(btrunc$a2$)",
 160   "optab_handler (nearbyint_optab, $A)->insn_code = CODE_FOR_$(nearbyint$a2$)",
 161   "optab_handler (rint_optab, $A)->insn_code = CODE_FOR_$(rint$a2$)",
 162   "convert_optab_handler (lrint_optab, $B, $A)->insn_code = CODE_FOR_$(lrint$F$a$I$b2$)",
 163   "convert_optab_handler (lround_optab, $B, $A)->insn_code = CODE_FOR_$(lround$F$a$I$b2$)",
 164   "optab_handler (sincos_optab, $A)->insn_code = CODE_FOR_$(sincos$a3$)",
 165   "optab_handler (sin_optab, $A)->insn_code = CODE_FOR_$(sin$a2$)",
 166   "optab_handler (asin_optab, $A)->insn_code = CODE_FOR_$(asin$a2$)",
 167   "optab_handler (cos_optab, $A)->insn_code = CODE_FOR_$(cos$a2$)",
 168   "optab_handler (acos_optab, $A)->insn_code = CODE_FOR_$(acos$a2$)",
 169   "optab_handler (exp_optab, $A)->insn_code = CODE_FOR_$(exp$a2$)",
 170   "optab_handler (exp10_optab, $A)->insn_code = CODE_FOR_$(exp10$a2$)",
 171   "optab_handler (exp2_optab, $A)->insn_code = CODE_FOR_$(exp2$a2$)",
 172   "optab_handler (expm1_optab, $A)->insn_code = CODE_FOR_$(expm1$a2$)",
 173   "optab_handler (ldexp_optab, $A)->insn_code = CODE_FOR_$(ldexp$a3$)",
 174   "optab_handler (scalb_optab, $A)->insn_code = CODE_FOR_$(scalb$a3$)",
 175   "optab_handler (logb_optab, $A)->insn_code = CODE_FOR_$(logb$a2$)",
 176   "optab_handler (ilogb_optab, $A)->insn_code = CODE_FOR_$(ilogb$a2$)",
 177   "optab_handler (log_optab, $A)->insn_code = CODE_FOR_$(log$a2$)",
 178   "optab_handler (log10_optab, $A)->insn_code = CODE_FOR_$(log10$a2$)",
 179   "optab_handler (log2_optab, $A)->insn_code = CODE_FOR_$(log2$a2$)",
 180   "optab_handler (log1p_optab, $A)->insn_code = CODE_FOR_$(log1p$a2$)",
 181   "optab_handler (tan_optab, $A)->insn_code = CODE_FOR_$(tan$a2$)",
 182   "optab_handler (atan_optab, $A)->insn_code = CODE_FOR_$(atan$a2$)",
 183   "optab_handler (strlen_optab, $A)->insn_code = CODE_FOR_$(strlen$a$)",
 184   "optab_handler (one_cmpl_optab, $A)->insn_code = CODE_FOR_$(one_cmpl$a2$)",
 185   "optab_handler (bswap_optab, $A)->insn_code = CODE_FOR_$(bswap$a2$)",
 186   "optab_handler (ffs_optab, $A)->insn_code = CODE_FOR_$(ffs$a2$)",
 187   "optab_handler (clz_optab, $A)->insn_code = CODE_FOR_$(clz$a2$)",
 188   "optab_handler (ctz_optab, $A)->insn_code = CODE_FOR_$(ctz$a2$)",
 189   "optab_handler (popcount_optab, $A)->insn_code = CODE_FOR_$(popcount$a2$)",
 190   "optab_handler (parity_optab, $A)->insn_code = CODE_FOR_$(parity$a2$)",
 191   "optab_handler (mov_optab, $A)->insn_code = CODE_FOR_$(mov$a$)",
 192   "optab_handler (movstrict_optab, $A)->insn_code = CODE_FOR_$(movstrict$a$)",
 193   "optab_handler (movmisalign_optab, $A)->insn_code = CODE_FOR_$(movmisalign$a$)",
 194   "optab_handler (storent_optab, $A)->insn_code = CODE_FOR_$(storent$a$)",
 195   "optab_handler (cmp_optab, $A)->insn_code = CODE_FOR_$(cmp$a$)",
 196   "optab_handler (tst_optab, $A)->insn_code = CODE_FOR_$(tst$a$)",
 197   "optab_handler (addcc_optab, $A)->insn_code = CODE_FOR_$(add$acc$)",
 198   "bcc_gen_fctn[$C] = gen_$(b$c$)",
 199   "setcc_gen_code[$C] = CODE_FOR_$(s$c$)",
 200   "movcc_gen_code[$A] = CODE_FOR_$(mov$acc$)",
 201   "optab_handler (cbranch_optab, $A)->insn_code = CODE_FOR_$(cbranch$a4$)",
 202   "optab_handler (cmov_optab, $A)->insn_code = CODE_FOR_$(cmov$a6$)",
 203   "optab_handler (cstore_optab, $A)->insn_code = CODE_FOR_$(cstore$a4$)",
 204   "optab_handler (push_optab, $A)->insn_code = CODE_FOR_$(push$a1$)",
 205   "reload_in_optab[$A] = CODE_FOR_$(reload_in$a$)",
 206   "reload_out_optab[$A] = CODE_FOR_$(reload_out$a$)",
 207   "movmem_optab[$A] = CODE_FOR_$(movmem$a$)",
 208   "cmpstr_optab[$A] = CODE_FOR_$(cmpstr$a$)",
 209   "cmpstrn_optab[$A] = CODE_FOR_$(cmpstrn$a$)",
 210   "cmpmem_optab[$A] = CODE_FOR_$(cmpmem$a$)",
 211   "setmem_optab[$A] = CODE_FOR_$(setmem$a$)",
 212   "sync_add_optab[$A] = CODE_FOR_$(sync_add$I$a$)",
 213   "sync_sub_optab[$A] = CODE_FOR_$(sync_sub$I$a$)",
 214   "sync_ior_optab[$A] = CODE_FOR_$(sync_ior$I$a$)",
 215   "sync_and_optab[$A] = CODE_FOR_$(sync_and$I$a$)",
 216   "sync_xor_optab[$A] = CODE_FOR_$(sync_xor$I$a$)",
 217   "sync_nand_optab[$A] = CODE_FOR_$(sync_nand$I$a$)",
 218   "sync_old_add_optab[$A] = CODE_FOR_$(sync_old_add$I$a$)",
 219   "sync_old_sub_optab[$A] = CODE_FOR_$(sync_old_sub$I$a$)",
 220   "sync_old_ior_optab[$A] = CODE_FOR_$(sync_old_ior$I$a$)",
 221   "sync_old_and_optab[$A] = CODE_FOR_$(sync_old_and$I$a$)",
 222   "sync_old_xor_optab[$A] = CODE_FOR_$(sync_old_xor$I$a$)",
 223   "sync_old_nand_optab[$A] = CODE_FOR_$(sync_old_nand$I$a$)",
 224   "sync_new_add_optab[$A] = CODE_FOR_$(sync_new_add$I$a$)",
 225   "sync_new_sub_optab[$A] = CODE_FOR_$(sync_new_sub$I$a$)",
 226   "sync_new_ior_optab[$A] = CODE_FOR_$(sync_new_ior$I$a$)",
 227   "sync_new_and_optab[$A] = CODE_FOR_$(sync_new_and$I$a$)",
 228   "sync_new_xor_optab[$A] = CODE_FOR_$(sync_new_xor$I$a$)",
 229   "sync_new_nand_optab[$A] = CODE_FOR_$(sync_new_nand$I$a$)",
 230   "sync_compare_and_swap[$A] = CODE_FOR_$(sync_compare_and_swap$I$a$)",
 231   "sync_compare_and_swap_cc[$A] = CODE_FOR_$(sync_compare_and_swap_cc$I$a$)",
 232   "sync_lock_test_and_set[$A] = CODE_FOR_$(sync_lock_test_and_set$I$a$)",
 233   "sync_lock_release[$A] = CODE_FOR_$(sync_lock_release$I$a$)",
 234   "optab_handler (vec_set_optab, $A)->insn_code = CODE_FOR_$(vec_set$a$)",
 235   "optab_handler (vec_extract_optab, $A)->insn_code = CODE_FOR_$(vec_extract$a$)",
 236   "optab_handler (vec_extract_even_optab, $A)->insn_code = CODE_FOR_$(vec_extract_even$a$)",
 237   "optab_handler (vec_extract_odd_optab, $A)->insn_code = CODE_FOR_$(vec_extract_odd$a$)",
 238   "optab_handler (vec_interleave_high_optab, $A)->insn_code = CODE_FOR_$(vec_interleave_high$a$)",
 239   "optab_handler (vec_interleave_low_optab, $A)->insn_code = CODE_FOR_$(vec_interleave_low$a$)",
 240   "optab_handler (vec_init_optab, $A)->insn_code = CODE_FOR_$(vec_init$a$)",
 241   "optab_handler (vec_shl_optab, $A)->insn_code = CODE_FOR_$(vec_shl_$a$)",
 242   "optab_handler (vec_shr_optab, $A)->insn_code = CODE_FOR_$(vec_shr_$a$)",
 243   "optab_handler (vec_realign_load_optab, $A)->insn_code = CODE_FOR_$(vec_realign_load_$a$)",
 244   "vcond_gen_code[$A] = CODE_FOR_$(vcond$a$)",
 245   "vcondu_gen_code[$A] = CODE_FOR_$(vcondu$a$)",
 246   "optab_handler (ssum_widen_optab, $A)->insn_code = CODE_FOR_$(widen_ssum$I$a3$)",
 247   "optab_handler (usum_widen_optab, $A)->insn_code = CODE_FOR_$(widen_usum$I$a3$)",
 248   "optab_handler (udot_prod_optab, $A)->insn_code = CODE_FOR_$(udot_prod$I$a$)",
 249   "optab_handler (sdot_prod_optab, $A)->insn_code = CODE_FOR_$(sdot_prod$I$a$)",
 250   "optab_handler (reduc_smax_optab, $A)->insn_code = CODE_FOR_$(reduc_smax_$a$)",
 251   "optab_handler (reduc_umax_optab, $A)->insn_code = CODE_FOR_$(reduc_umax_$a$)",
 252   "optab_handler (reduc_smin_optab, $A)->insn_code = CODE_FOR_$(reduc_smin_$a$)",
 253   "optab_handler (reduc_umin_optab, $A)->insn_code = CODE_FOR_$(reduc_umin_$a$)",
 254   "optab_handler (reduc_splus_optab, $A)->insn_code = CODE_FOR_$(reduc_splus_$a$)" ,
 255   "optab_handler (reduc_uplus_optab, $A)->insn_code = CODE_FOR_$(reduc_uplus_$a$)",
 256   "optab_handler (vec_widen_umult_hi_optab, $A)->insn_code = CODE_FOR_$(vec_widen_umult_hi_$a$)",
 257   "optab_handler (vec_widen_umult_lo_optab, $A)->insn_code = CODE_FOR_$(vec_widen_umult_lo_$a$)",
 258   "optab_handler (vec_widen_smult_hi_optab, $A)->insn_code = CODE_FOR_$(vec_widen_smult_hi_$a$)",
 259   "optab_handler (vec_widen_smult_lo_optab, $A)->insn_code = CODE_FOR_$(vec_widen_smult_lo_$a$)",
 260   "optab_handler (vec_unpacks_hi_optab, $A)->insn_code = CODE_FOR_$(vec_unpacks_hi_$a$)",
 261   "optab_handler (vec_unpacks_lo_optab, $A)->insn_code = CODE_FOR_$(vec_unpacks_lo_$a$)",
 262   "optab_handler (vec_unpacku_hi_optab, $A)->insn_code = CODE_FOR_$(vec_unpacku_hi_$a$)",
 263   "optab_handler (vec_unpacku_lo_optab, $A)->insn_code = CODE_FOR_$(vec_unpacku_lo_$a$)",
 264   "optab_handler (vec_unpacks_float_hi_optab, $A)->insn_code = CODE_FOR_$(vec_unpacks_float_hi_$a$)",
 265   "optab_handler (vec_unpacks_float_lo_optab, $A)->insn_code = CODE_FOR_$(vec_unpacks_float_lo_$a$)",
 266   "optab_handler (vec_unpacku_float_hi_optab, $A)->insn_code = CODE_FOR_$(vec_unpacku_float_hi_$a$)",
 267   "optab_handler (vec_unpacku_float_lo_optab, $A)->insn_code = CODE_FOR_$(vec_unpacku_float_lo_$a$)",
 268   "optab_handler (vec_pack_trunc_optab, $A)->insn_code = CODE_FOR_$(vec_pack_trunc_$a$)",
 269   "optab_handler (vec_pack_ssat_optab, $A)->insn_code = CODE_FOR_$(vec_pack_ssat_$a$)",
 270   "optab_handler (vec_pack_usat_optab, $A)->insn_code = CODE_FOR_$(vec_pack_usat_$a$)",
 271   "optab_handler (vec_pack_sfix_trunc_optab, $A)->insn_code = CODE_FOR_$(vec_pack_sfix_trunc_$a$)",
 272   "optab_handler (vec_pack_ufix_trunc_optab, $A)->insn_code = CODE_FOR_$(vec_pack_ufix_trunc_$a$)"
 273 };
 274
 275 static void gen_insn (rtx);
 276
 277 static void
 278 gen_insn (rtx insn)
 279 {
 280   const char *name = XSTR (insn, 0);
 281   int m1 = 0, m2 = 0, op = 0;
 282   size_t pindex;
 283   int i;
 284   const char *np, *pp, *p, *q;
 285
 286   /* Don't mention instructions whose names are the null string.
 287      They are in the machine description just to be recognized.  */
 288   if (*name == 0)
 289     return;
 290
 291   /* See if NAME matches one of the patterns we have for the optabs we know
 292      about.  */
 293
 294   for (pindex = 0; pindex < ARRAY_SIZE (optabs); pindex++)
 295     {
 296       int force_float = 0, force_int = 0, force_partial_int = 0;
 297       int force_fixed = 0;
 298       int force_consec = 0;
 299       int matches = 1;
 300
 301       for (pp = optabs[pindex]; pp[0] != '$' || pp[1] != '('; pp++)
 302         ;
 303
 304       for (pp += 2, np = name; matches && ! (pp[0] == '$' && pp[1] == ')');
 305            pp++)
 306         {
 307           if (*pp != '$')
 308             {
 309               if (*pp != *np++)
 310                 break;
 311             }
 312           else
 313             switch (*++pp)
 314               {
 315               case 'N':
 316                 force_consec = 1;
 317                 break;
 318               case 'I':
 319                 force_int = 1;
 320                 break;
 321               case 'P':
 322                 force_partial_int = 1;
 323                 break;
 324               case 'F':
 325                 force_float = 1;
 326                 break;
 327               case 'Q':
 328                 force_fixed = 1;
 329                 break;
 330               case 'V':
 331                 break;
 332               case 'c':
 333                 for (op = 0; op < NUM_RTX_CODE; op++)
 334                   {
 335                     for (p = GET_RTX_NAME(op), q = np; *p; p++, q++)
 336                       if (*p != *q)
 337                         break;
 338
 339                     /* We have to be concerned about matching "gt" and
 340                        missing "gtu", e.g., so verify we have reached the
 341                        end of thing we are to match.  */
 342                     if (*p == 0 && *q == 0
 343                         && (GET_RTX_CLASS (op) == RTX_COMPARE
 344                             || GET_RTX_CLASS (op) == RTX_COMM_COMPARE))
 345                       break;
 346                   }
 347
 348                 if (op == NUM_RTX_CODE)
 349                   matches = 0;
 350                 else
 351                   np += strlen (GET_RTX_NAME(op));
 352                 break;
 353               case 'a':
 354               case 'b':
 355                 /* This loop will stop at the first prefix match, so
 356                    look through the modes in reverse order, in case
 357                    there are extra CC modes and CC is a prefix of the
 358                    CC modes (as it should be).  */
 359                 for (i = (MAX_MACHINE_MODE) - 1; i >= 0; i--)
 360                   {
 361                     for (p = GET_MODE_NAME(i), q = np; *p; p++, q++)
 362                       if (TOLOWER (*p) != *q)
 363                         break;
 364
 365                     if (*p == 0
 366                         && (! force_int || mode_class[i] == MODE_INT
 367                             || mode_class[i] == MODE_VECTOR_INT)
 368                         && (! force_partial_int
 369                             || mode_class[i] == MODE_INT
 370                             || mode_class[i] == MODE_PARTIAL_INT
 371                             || mode_class[i] == MODE_VECTOR_INT)
 372                         && (! force_float
 373                             || mode_class[i] == MODE_FLOAT
 374                             || mode_class[i] == MODE_DECIMAL_FLOAT
 375                             || mode_class[i] == MODE_COMPLEX_FLOAT
 376                             || mode_class[i] == MODE_VECTOR_FLOAT)
 377                         && (! force_fixed
 378                             || mode_class[i] == MODE_FRACT
 379                             || mode_class[i] == MODE_UFRACT
 380                             || mode_class[i] == MODE_ACCUM
 381                             || mode_class[i] == MODE_UACCUM
 382                             || mode_class[i] == MODE_VECTOR_FRACT
 383                             || mode_class[i] == MODE_VECTOR_UFRACT
 384                             || mode_class[i] == MODE_VECTOR_ACCUM
 385                             || mode_class[i] == MODE_VECTOR_UACCUM))
 386                       break;
 387                   }
 388
 389                 if (i < 0)
 390                   matches = 0;
 391                 else if (*pp == 'a')
 392                   m1 = i, np += strlen (GET_MODE_NAME(i));
 393                 else
 394                   m2 = i, np += strlen (GET_MODE_NAME(i));
 395
 396                 force_int = force_partial_int = force_float = force_fixed = 0;
 397                 break;
 398
 399               default:
 400                 gcc_unreachable ();
 401               }
 402         }
 403
 404       if (matches && pp[0] == '$' && pp[1] == ')'
 405           && *np == 0
 406           && (! force_consec || (int) GET_MODE_WIDER_MODE(m1) == m2))
 407         break;
 408     }
 409
 410   if (pindex == ARRAY_SIZE (optabs))
 411     return;
 412
 413   /* We found a match.  If this pattern is only conditionally present,
 414      write out the "if" and two extra blanks.  */
 415
 416   if (*XSTR (insn, 2) != 0)
 417     printf ("  if (HAVE_%s)\n  ", name);
 418
 419   printf ("  ");
 420
 421   /* Now write out the initialization, making all required substitutions.  */
 422   for (pp = optabs[pindex]; *pp; pp++)
 423     {
 424       if (*pp != '$')
 425         putchar (*pp);
 426       else
 427         switch (*++pp)
 428           {
 429           case '(':  case ')':
 430           case 'I':  case 'F':  case 'N':
 431             break;
 432           case 'V':
 433             if (SCALAR_FLOAT_MODE_P (m1))
 434               printf ("v");
 435             break;
 436           case 'a':
 437             for (np = GET_MODE_NAME(m1); *np; np++)
 438               putchar (TOLOWER (*np));
 439             break;
 440           case 'b':
 441             for (np = GET_MODE_NAME(m2); *np; np++)
 442               putchar (TOLOWER (*np));
 443             break;
 444           case 'A':
 445             printf ("%smode", GET_MODE_NAME(m1));
 446             break;
 447           case 'B':
 448             printf ("%smode", GET_MODE_NAME(m2));
 449             break;
 450           case 'c':
 451             printf ("%s", GET_RTX_NAME(op));
 452             break;
 453           case 'C':
 454             for (np = GET_RTX_NAME(op); *np; np++)
 455               putchar (TOUPPER (*np));
 456             break;
 457           }
 458     }
 459
 460   printf (";\n");
 461 }
 462
 463 extern int main (int, char **);
 464
 465 int
 466 main (int argc, char **argv)
 467 {
 468   rtx desc;
 469
 470   progname = "genopinit";
 471
 472   if (init_md_reader_args (argc, argv) != SUCCESS_EXIT_CODE)
 473     return (FATAL_EXIT_CODE);
 474
 475   printf ("/* Generated automatically by the program `genopinit'\n\
 476 from the machine description file `md'.  */\n\n");
 477
 478   printf ("#include \"config.h\"\n");
 479   printf ("#include \"system.h\"\n");
 480   printf ("#include \"coretypes.h\"\n");
 481   printf ("#include \"tm.h\"\n");
 482   printf ("#include \"rtl.h\"\n");
 483   printf ("#include \"flags.h\"\n");
 484   printf ("#include \"insn-config.h\"\n");
 485   printf ("#include \"recog.h\"\n");
 486   printf ("#include \"expr.h\"\n");
 487   printf ("#include \"optabs.h\"\n");
 488   printf ("#include \"reload.h\"\n\n");
 489
 490   printf ("void\ninit_all_optabs (void)\n{\n");
 491
 492   puts ("\
 493 #ifdef FIXUNS_TRUNC_LIKE_FIX_TRUNC\n\
 494   int i, j;\n\
 495 #endif\n");
 496
 497   /* Read the machine description.  */
 498
 499   while (1)
 500     {
 501       int line_no, insn_code_number = 0;
 502
 503       desc = read_md_rtx (&line_no, &insn_code_number);
 504       if (desc == NULL)
 505         break;
 506
 507       if (GET_CODE (desc) == DEFINE_INSN || GET_CODE (desc) == DEFINE_EXPAND)
 508         gen_insn (desc);
 509     }
 510
 511   puts ("\
 512 \n\
 513 #ifdef FIXUNS_TRUNC_LIKE_FIX_TRUNC\n\
 514   /* This flag says the same insns that convert to a signed fixnum\n\
 515      also convert validly to an unsigned one.  */\n\
 516   for (i = 0; i < NUM_MACHINE_MODES; i++)\n\
 517     for (j = 0; j < NUM_MACHINE_MODES; j++)\n\
 518       convert_optab_handler (ufixtrunc_optab, i, j)->insn_code\n\
 519       = convert_optab_handler (sfixtrunc_optab, i, j)->insn_code;\n\
 520 #endif\n\
 521 }");
 522
 523   fflush (stdout);
 524   return (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);
 525 }