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, 2008
   4    Free Software Foundation, Inc.
   5
   6 This file is part of GCC.
   7
   8 GCC is free software; you can redistribute it and/or modify it under
   9 the terms of the GNU General Public License as published by the Free
  10 Software Foundation; either version 3, or (at your option) any later
  11 version.
  12
  13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  15 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  16 for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with GCC; see the file COPYING3.  If not see
  20 <http://www.gnu.org/licenses/>.  */
  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    $Q means that only fixed-point modes should be considered.
  55
  56    $V means to emit 'v' if the first mode is a MODE_FLOAT mode.
  57
  58    For some optabs, we store the operation by RTL codes.  These are only
  59    used for comparisons.  In that case, $c and $C are the lower-case and
  60    upper-case forms of the comparison, respectively.  */
  61
  62 static const char * const optabs[] =
  63 { "convert_optab_handler (sext_optab, $B, $A)->insn_code = CODE_FOR_$(extend$a$b2$)",
  64   "convert_optab_handler (zext_optab, $B, $A)->insn_code = CODE_FOR_$(zero_extend$a$b2$)",
  65   "convert_optab_handler (sfix_optab, $B, $A)->insn_code = CODE_FOR_$(fix$F$a$I$b2$)",
  66   "convert_optab_handler (ufix_optab, $B, $A)->insn_code = CODE_FOR_$(fixuns$F$a$b2$)",
  67   "convert_optab_handler (sfixtrunc_optab, $B, $A)->insn_code = CODE_FOR_$(fix_trunc$F$a$I$b2$)",
  68   "convert_optab_handler (ufixtrunc_optab, $B, $A)->insn_code = CODE_FOR_$(fixuns_trunc$F$a$I$b2$)",
  69   "convert_optab_handler (sfloat_optab, $B, $A)->insn_code = CODE_FOR_$(float$I$a$F$b2$)",
  70   "convert_optab_handler (ufloat_optab, $B, $A)->insn_code = CODE_FOR_$(floatuns$I$a$F$b2$)",
  71   "convert_optab_handler (trunc_optab, $B, $A)->insn_code = CODE_FOR_$(trunc$a$b2$)",
  72   "convert_optab_handler (fract_optab, $B, $A)->insn_code = CODE_FOR_$(fract$a$b2$)",
  73   "convert_optab_handler (fractuns_optab, $B, $A)->insn_code = CODE_FOR_$(fractuns$I$a$Q$b2$)",
  74   "convert_optab_handler (fractuns_optab, $B, $A)->insn_code = CODE_FOR_$(fractuns$Q$a$I$b2$)",
  75   "convert_optab_handler (satfract_optab, $B, $A)->insn_code = CODE_FOR_$(satfract$a$Q$b2$)",
  76   "convert_optab_handler (satfractuns_optab, $B, $A)->insn_code = CODE_FOR_$(satfractuns$I$a$Q$b2$)",
  77   "optab_handler (add_optab, $A)->insn_code = CODE_FOR_$(add$P$a3$)",
  78   "optab_handler (addv_optab, $A)->insn_code =\n\
  79     optab_handler (add_optab, $A)->insn_code = CODE_FOR_$(add$F$a3$)",
  80   "optab_handler (addv_optab, $A)->insn_code = CODE_FOR_$(addv$I$a3$)",
  81   "optab_handler (add_optab, $A)->insn_code = CODE_FOR_$(add$Q$a3$)",
  82   "optab_handler (ssadd_optab, $A)->insn_code = CODE_FOR_$(ssadd$Q$a3$)",
  83   "optab_handler (usadd_optab, $A)->insn_code = CODE_FOR_$(usadd$Q$a3$)",
  84   "optab_handler (sub_optab, $A)->insn_code = CODE_FOR_$(sub$P$a3$)",
  85   "optab_handler (subv_optab, $A)->insn_code =\n\
  86     optab_handler (sub_optab, $A)->insn_code = CODE_FOR_$(sub$F$a3$)",
  87   "optab_handler (subv_optab, $A)->insn_code = CODE_FOR_$(subv$I$a3$)",
  88   "optab_handler (sub_optab, $A)->insn_code = CODE_FOR_$(sub$Q$a3$)",
  89   "optab_handler (sssub_optab, $A)->insn_code = CODE_FOR_$(sssub$Q$a3$)",
  90   "optab_handler (ussub_optab, $A)->insn_code = CODE_FOR_$(ussub$Q$a3$)",
  91   "optab_handler (smul_optab, $A)->insn_code = CODE_FOR_$(mul$Q$a3$)",
  92   "optab_handler (ssmul_optab, $A)->insn_code = CODE_FOR_$(ssmul$Q$a3$)",
  93   "optab_handler (usmul_optab, $A)->insn_code = CODE_FOR_$(usmul$Q$a3$)",
  94   "optab_handler (smul_optab, $A)->insn_code = CODE_FOR_$(mul$P$a3$)",
  95   "optab_handler (smulv_optab, $A)->insn_code =\n\
  96     optab_handler (smul_optab, $A)->insn_code = CODE_FOR_$(mul$F$a3$)",
  97   "optab_handler (smulv_optab, $A)->insn_code = CODE_FOR_$(mulv$I$a3$)",
  98   "optab_handler (umul_highpart_optab, $A)->insn_code = CODE_FOR_$(umul$a3_highpart$)",
  99   "optab_handler (smul_highpart_optab, $A)->insn_code = CODE_FOR_$(smul$a3_highpart$)",
 100   "optab_handler (smul_widen_optab, $B)->insn_code = CODE_FOR_$(mul$a$b3$)$N",
 101   "optab_handler (umul_widen_optab, $B)->insn_code = CODE_FOR_$(umul$a$b3$)$N",
 102   "optab_handler (usmul_widen_optab, $B)->insn_code = CODE_FOR_$(usmul$a$b3$)$N",
 103   "optab_handler (smadd_widen_optab, $B)->insn_code = CODE_FOR_$(madd$a$b4$)$N",
 104   "optab_handler (umadd_widen_optab, $B)->insn_code = CODE_FOR_$(umadd$a$b4$)$N",
 105   "optab_handler (ssmadd_widen_optab, $B)->insn_code = CODE_FOR_$(ssmadd$a$b4$)$N",
 106   "optab_handler (usmadd_widen_optab, $B)->insn_code = CODE_FOR_$(usmadd$a$b4$)$N",
 107   "optab_handler (smsub_widen_optab, $B)->insn_code = CODE_FOR_$(msub$a$b4$)$N",
 108   "optab_handler (umsub_widen_optab, $B)->insn_code = CODE_FOR_$(umsub$a$b4$)$N",
 109   "optab_handler (ssmsub_widen_optab, $B)->insn_code = CODE_FOR_$(ssmsub$a$b4$)$N",
 110   "optab_handler (usmsub_widen_optab, $B)->insn_code = CODE_FOR_$(usmsub$a$b4$)$N",
 111   "optab_handler (sdiv_optab, $A)->insn_code = CODE_FOR_$(div$a3$)",
 112   "optab_handler (ssdiv_optab, $A)->insn_code = CODE_FOR_$(ssdiv$Q$a3$)",
 113   "optab_handler (sdivv_optab, $A)->insn_code = CODE_FOR_$(div$V$I$a3$)",
 114   "optab_handler (udiv_optab, $A)->insn_code = CODE_FOR_$(udiv$I$a3$)",
 115   "optab_handler (udiv_optab, $A)->insn_code = CODE_FOR_$(udiv$Q$a3$)",
 116   "optab_handler (usdiv_optab, $A)->insn_code = CODE_FOR_$(usdiv$Q$a3$)",
 117   "optab_handler (sdivmod_optab, $A)->insn_code = CODE_FOR_$(divmod$a4$)",
 118   "optab_handler (udivmod_optab, $A)->insn_code = CODE_FOR_$(udivmod$a4$)",
 119   "optab_handler (smod_optab, $A)->insn_code = CODE_FOR_$(mod$a3$)",
 120   "optab_handler (umod_optab, $A)->insn_code = CODE_FOR_$(umod$a3$)",
 121   "optab_handler (fmod_optab, $A)->insn_code = CODE_FOR_$(fmod$a3$)",
 122   "optab_handler (remainder_optab, $A)->insn_code = CODE_FOR_$(remainder$a3$)",
 123   "optab_handler (ftrunc_optab, $A)->insn_code = CODE_FOR_$(ftrunc$F$a2$)",
 124   "optab_handler (and_optab, $A)->insn_code = CODE_FOR_$(and$a3$)",
 125   "optab_handler (ior_optab, $A)->insn_code = CODE_FOR_$(ior$a3$)",
 126   "optab_handler (xor_optab, $A)->insn_code = CODE_FOR_$(xor$a3$)",
 127   "optab_handler (ashl_optab, $A)->insn_code = CODE_FOR_$(ashl$a3$)",
 128   "optab_handler (ssashl_optab, $A)->insn_code = CODE_FOR_$(ssashl$Q$a3$)",
 129   "optab_handler (usashl_optab, $A)->insn_code = CODE_FOR_$(usashl$Q$a3$)",
 130   "optab_handler (ashr_optab, $A)->insn_code = CODE_FOR_$(ashr$a3$)",
 131   "optab_handler (lshr_optab, $A)->insn_code = CODE_FOR_$(lshr$a3$)",
 132   "optab_handler (rotl_optab, $A)->insn_code = CODE_FOR_$(rotl$a3$)",
 133   "optab_handler (rotr_optab, $A)->insn_code = CODE_FOR_$(rotr$a3$)",
 134   "optab_handler (vashr_optab, $A)->insn_code = CODE_FOR_$(vashr$a3$)",
 135   "optab_handler (vlshr_optab, $A)->insn_code = CODE_FOR_$(vlshr$a3$)",
 136   "optab_handler (vashl_optab, $A)->insn_code = CODE_FOR_$(vashl$a3$)",
 137   "optab_handler (vrotl_optab, $A)->insn_code = CODE_FOR_$(vrotl$a3$)",
 138   "optab_handler (vrotr_optab, $A)->insn_code = CODE_FOR_$(vrotr$a3$)",
 139   "optab_handler (smin_optab, $A)->insn_code = CODE_FOR_$(smin$a3$)",
 140   "optab_handler (smax_optab, $A)->insn_code = CODE_FOR_$(smax$a3$)",
 141   "optab_handler (umin_optab, $A)->insn_code = CODE_FOR_$(umin$I$a3$)",
 142   "optab_handler (umax_optab, $A)->insn_code = CODE_FOR_$(umax$I$a3$)",
 143   "optab_handler (pow_optab, $A)->insn_code = CODE_FOR_$(pow$a3$)",
 144   "optab_handler (atan2_optab, $A)->insn_code = CODE_FOR_$(atan2$a3$)",
 145   "optab_handler (neg_optab, $A)->insn_code = CODE_FOR_$(neg$P$a2$)",
 146   "optab_handler (negv_optab, $A)->insn_code =\n\
 147     optab_handler (neg_optab, $A)->insn_code = CODE_FOR_$(neg$F$a2$)",
 148   "optab_handler (negv_optab, $A)->insn_code = CODE_FOR_$(negv$I$a2$)",
 149   "optab_handler (neg_optab, $A)->insn_code = CODE_FOR_$(neg$Q$a2$)",
 150   "optab_handler (ssneg_optab, $A)->insn_code = CODE_FOR_$(ssneg$Q$a2$)",
 151   "optab_handler (usneg_optab, $A)->insn_code = CODE_FOR_$(usneg$Q$a2$)",
 152   "optab_handler (abs_optab, $A)->insn_code = CODE_FOR_$(abs$P$a2$)",
 153   "optab_handler (absv_optab, $A)->insn_code =\n\
 154     optab_handler (abs_optab, $A)->insn_code = CODE_FOR_$(abs$F$a2$)",
 155   "optab_handler (absv_optab, $A)->insn_code = CODE_FOR_$(absv$I$a2$)",
 156   "optab_handler (copysign_optab, $A)->insn_code = CODE_FOR_$(copysign$F$a3$)",
 157   "optab_handler (signbit_optab, $A)->insn_code = CODE_FOR_$(signbit$F$a2$)",
 158   "optab_handler (isinf_optab, $A)->insn_code = CODE_FOR_$(isinf$a2$)",
 159   "optab_handler (sqrt_optab, $A)->insn_code = CODE_FOR_$(sqrt$a2$)",
 160   "optab_handler (floor_optab, $A)->insn_code = CODE_FOR_$(floor$a2$)",
 161   "convert_optab_handler (lfloor_optab, $B, $A)->insn_code = CODE_FOR_$(lfloor$F$a$I$b2$)",
 162   "optab_handler (ceil_optab, $A)->insn_code = CODE_FOR_$(ceil$a2$)",
 163   "convert_optab_handler (lceil_optab, $B, $A)->insn_code = CODE_FOR_$(lceil$F$a$I$b2$)",
 164   "optab_handler (round_optab, $A)->insn_code = CODE_FOR_$(round$a2$)",
 165   "optab_handler (btrunc_optab, $A)->insn_code = CODE_FOR_$(btrunc$a2$)",
 166   "optab_handler (nearbyint_optab, $A)->insn_code = CODE_FOR_$(nearbyint$a2$)",
 167   "optab_handler (rint_optab, $A)->insn_code = CODE_FOR_$(rint$a2$)",
 168   "convert_optab_handler (lrint_optab, $B, $A)->insn_code = CODE_FOR_$(lrint$F$a$I$b2$)",
 169   "convert_optab_handler (lround_optab, $B, $A)->insn_code = CODE_FOR_$(lround$F$a$I$b2$)",
 170   "optab_handler (sincos_optab, $A)->insn_code = CODE_FOR_$(sincos$a3$)",
 171   "optab_handler (sin_optab, $A)->insn_code = CODE_FOR_$(sin$a2$)",
 172   "optab_handler (asin_optab, $A)->insn_code = CODE_FOR_$(asin$a2$)",
 173   "optab_handler (cos_optab, $A)->insn_code = CODE_FOR_$(cos$a2$)",
 174   "optab_handler (acos_optab, $A)->insn_code = CODE_FOR_$(acos$a2$)",
 175   "optab_handler (exp_optab, $A)->insn_code = CODE_FOR_$(exp$a2$)",
 176   "optab_handler (exp10_optab, $A)->insn_code = CODE_FOR_$(exp10$a2$)",
 177   "optab_handler (exp2_optab, $A)->insn_code = CODE_FOR_$(exp2$a2$)",
 178   "optab_handler (expm1_optab, $A)->insn_code = CODE_FOR_$(expm1$a2$)",
 179   "optab_handler (ldexp_optab, $A)->insn_code = CODE_FOR_$(ldexp$a3$)",
 180   "optab_handler (scalb_optab, $A)->insn_code = CODE_FOR_$(scalb$a3$)",
 181   "optab_handler (logb_optab, $A)->insn_code = CODE_FOR_$(logb$a2$)",
 182   "optab_handler (ilogb_optab, $A)->insn_code = CODE_FOR_$(ilogb$a2$)",
 183   "optab_handler (log_optab, $A)->insn_code = CODE_FOR_$(log$a2$)",
 184   "optab_handler (log10_optab, $A)->insn_code = CODE_FOR_$(log10$a2$)",
 185   "optab_handler (log2_optab, $A)->insn_code = CODE_FOR_$(log2$a2$)",
 186   "optab_handler (log1p_optab, $A)->insn_code = CODE_FOR_$(log1p$a2$)",
 187   "optab_handler (tan_optab, $A)->insn_code = CODE_FOR_$(tan$a2$)",
 188   "optab_handler (atan_optab, $A)->insn_code = CODE_FOR_$(atan$a2$)",
 189   "optab_handler (strlen_optab, $A)->insn_code = CODE_FOR_$(strlen$a$)",
 190   "optab_handler (one_cmpl_optab, $A)->insn_code = CODE_FOR_$(one_cmpl$a2$)",
 191   "optab_handler (bswap_optab, $A)->insn_code = CODE_FOR_$(bswap$a2$)",
 192   "optab_handler (ffs_optab, $A)->insn_code = CODE_FOR_$(ffs$a2$)",
 193   "optab_handler (clz_optab, $A)->insn_code = CODE_FOR_$(clz$a2$)",
 194   "optab_handler (ctz_optab, $A)->insn_code = CODE_FOR_$(ctz$a2$)",
 195   "optab_handler (popcount_optab, $A)->insn_code = CODE_FOR_$(popcount$a2$)",
 196   "optab_handler (parity_optab, $A)->insn_code = CODE_FOR_$(parity$a2$)",
 197   "optab_handler (mov_optab, $A)->insn_code = CODE_FOR_$(mov$a$)",
 198   "optab_handler (movstrict_optab, $A)->insn_code = CODE_FOR_$(movstrict$a$)",
 199   "optab_handler (movmisalign_optab, $A)->insn_code = CODE_FOR_$(movmisalign$a$)",
 200   "optab_handler (storent_optab, $A)->insn_code = CODE_FOR_$(storent$a$)",
 201   "optab_handler (addcc_optab, $A)->insn_code = CODE_FOR_$(add$acc$)",
 202   "movcc_gen_code[$A] = CODE_FOR_$(mov$acc$)",
 203   "optab_handler (cbranch_optab, $A)->insn_code = CODE_FOR_$(cbranch$a4$)",
 204   "optab_handler (cmov_optab, $A)->insn_code = CODE_FOR_$(cmov$a6$)",
 205   "optab_handler (cstore_optab, $A)->insn_code = CODE_FOR_$(cstore$a4$)",
 206   "optab_handler (ctrap_optab, $A)->insn_code = CODE_FOR_$(ctrap$a4$)",
 207   "optab_handler (push_optab, $A)->insn_code = CODE_FOR_$(push$a1$)",
 208   "reload_in_optab[$A] = CODE_FOR_$(reload_in$a$)",
 209   "reload_out_optab[$A] = CODE_FOR_$(reload_out$a$)",
 210   "movmem_optab[$A] = CODE_FOR_$(movmem$a$)",
 211   "cmpstr_optab[$A] = CODE_FOR_$(cmpstr$a$)",
 212   "cmpstrn_optab[$A] = CODE_FOR_$(cmpstrn$a$)",
 213   "cmpmem_optab[$A] = CODE_FOR_$(cmpmem$a$)",
 214   "setmem_optab[$A] = CODE_FOR_$(setmem$a$)",
 215   "sync_add_optab[$A] = CODE_FOR_$(sync_add$I$a$)",
 216   "sync_sub_optab[$A] = CODE_FOR_$(sync_sub$I$a$)",
 217   "sync_ior_optab[$A] = CODE_FOR_$(sync_ior$I$a$)",
 218   "sync_and_optab[$A] = CODE_FOR_$(sync_and$I$a$)",
 219   "sync_xor_optab[$A] = CODE_FOR_$(sync_xor$I$a$)",
 220   "sync_nand_optab[$A] = CODE_FOR_$(sync_nand$I$a$)",
 221   "sync_old_add_optab[$A] = CODE_FOR_$(sync_old_add$I$a$)",
 222   "sync_old_sub_optab[$A] = CODE_FOR_$(sync_old_sub$I$a$)",
 223   "sync_old_ior_optab[$A] = CODE_FOR_$(sync_old_ior$I$a$)",
 224   "sync_old_and_optab[$A] = CODE_FOR_$(sync_old_and$I$a$)",
 225   "sync_old_xor_optab[$A] = CODE_FOR_$(sync_old_xor$I$a$)",
 226   "sync_old_nand_optab[$A] = CODE_FOR_$(sync_old_nand$I$a$)",
 227   "sync_new_add_optab[$A] = CODE_FOR_$(sync_new_add$I$a$)",
 228   "sync_new_sub_optab[$A] = CODE_FOR_$(sync_new_sub$I$a$)",
 229   "sync_new_ior_optab[$A] = CODE_FOR_$(sync_new_ior$I$a$)",
 230   "sync_new_and_optab[$A] = CODE_FOR_$(sync_new_and$I$a$)",
 231   "sync_new_xor_optab[$A] = CODE_FOR_$(sync_new_xor$I$a$)",
 232   "sync_new_nand_optab[$A] = CODE_FOR_$(sync_new_nand$I$a$)",
 233   "sync_compare_and_swap[$A] = CODE_FOR_$(sync_compare_and_swap$I$a$)",
 234   "sync_lock_test_and_set[$A] = CODE_FOR_$(sync_lock_test_and_set$I$a$)",
 235   "sync_lock_release[$A] = CODE_FOR_$(sync_lock_release$I$a$)",
 236   "optab_handler (vec_set_optab, $A)->insn_code = CODE_FOR_$(vec_set$a$)",
 237   "optab_handler (vec_extract_optab, $A)->insn_code = CODE_FOR_$(vec_extract$a$)",
 238   "optab_handler (vec_extract_even_optab, $A)->insn_code = CODE_FOR_$(vec_extract_even$a$)",
 239   "optab_handler (vec_extract_odd_optab, $A)->insn_code = CODE_FOR_$(vec_extract_odd$a$)",
 240   "optab_handler (vec_interleave_high_optab, $A)->insn_code = CODE_FOR_$(vec_interleave_high$a$)",
 241   "optab_handler (vec_interleave_low_optab, $A)->insn_code = CODE_FOR_$(vec_interleave_low$a$)",
 242   "optab_handler (vec_init_optab, $A)->insn_code = CODE_FOR_$(vec_init$a$)",
 243   "optab_handler (vec_shl_optab, $A)->insn_code = CODE_FOR_$(vec_shl_$a$)",
 244   "optab_handler (vec_shr_optab, $A)->insn_code = CODE_FOR_$(vec_shr_$a$)",
 245   "optab_handler (vec_realign_load_optab, $A)->insn_code = CODE_FOR_$(vec_realign_load_$a$)",
 246   "vcond_gen_code[$A] = CODE_FOR_$(vcond$a$)",
 247   "vcondu_gen_code[$A] = CODE_FOR_$(vcondu$a$)",
 248   "optab_handler (ssum_widen_optab, $A)->insn_code = CODE_FOR_$(widen_ssum$I$a3$)",
 249   "optab_handler (usum_widen_optab, $A)->insn_code = CODE_FOR_$(widen_usum$I$a3$)",
 250   "optab_handler (udot_prod_optab, $A)->insn_code = CODE_FOR_$(udot_prod$I$a$)",
 251   "optab_handler (sdot_prod_optab, $A)->insn_code = CODE_FOR_$(sdot_prod$I$a$)",
 252   "optab_handler (reduc_smax_optab, $A)->insn_code = CODE_FOR_$(reduc_smax_$a$)",
 253   "optab_handler (reduc_umax_optab, $A)->insn_code = CODE_FOR_$(reduc_umax_$a$)",
 254   "optab_handler (reduc_smin_optab, $A)->insn_code = CODE_FOR_$(reduc_smin_$a$)",
 255   "optab_handler (reduc_umin_optab, $A)->insn_code = CODE_FOR_$(reduc_umin_$a$)",
 256   "optab_handler (reduc_splus_optab, $A)->insn_code = CODE_FOR_$(reduc_splus_$a$)" ,
 257   "optab_handler (reduc_uplus_optab, $A)->insn_code = CODE_FOR_$(reduc_uplus_$a$)",
 258   "optab_handler (vec_widen_umult_hi_optab, $A)->insn_code = CODE_FOR_$(vec_widen_umult_hi_$a$)",
 259   "optab_handler (vec_widen_umult_lo_optab, $A)->insn_code = CODE_FOR_$(vec_widen_umult_lo_$a$)",
 260   "optab_handler (vec_widen_smult_hi_optab, $A)->insn_code = CODE_FOR_$(vec_widen_smult_hi_$a$)",
 261   "optab_handler (vec_widen_smult_lo_optab, $A)->insn_code = CODE_FOR_$(vec_widen_smult_lo_$a$)",
 262   "optab_handler (vec_unpacks_hi_optab, $A)->insn_code = CODE_FOR_$(vec_unpacks_hi_$a$)",
 263   "optab_handler (vec_unpacks_lo_optab, $A)->insn_code = CODE_FOR_$(vec_unpacks_lo_$a$)",
 264   "optab_handler (vec_unpacku_hi_optab, $A)->insn_code = CODE_FOR_$(vec_unpacku_hi_$a$)",
 265   "optab_handler (vec_unpacku_lo_optab, $A)->insn_code = CODE_FOR_$(vec_unpacku_lo_$a$)",
 266   "optab_handler (vec_unpacks_float_hi_optab, $A)->insn_code = CODE_FOR_$(vec_unpacks_float_hi_$a$)",
 267   "optab_handler (vec_unpacks_float_lo_optab, $A)->insn_code = CODE_FOR_$(vec_unpacks_float_lo_$a$)",
 268   "optab_handler (vec_unpacku_float_hi_optab, $A)->insn_code = CODE_FOR_$(vec_unpacku_float_hi_$a$)",
 269   "optab_handler (vec_unpacku_float_lo_optab, $A)->insn_code = CODE_FOR_$(vec_unpacku_float_lo_$a$)",
 270   "optab_handler (vec_pack_trunc_optab, $A)->insn_code = CODE_FOR_$(vec_pack_trunc_$a$)",
 271   "optab_handler (vec_pack_ssat_optab, $A)->insn_code = CODE_FOR_$(vec_pack_ssat_$a$)",
 272   "optab_handler (vec_pack_usat_optab, $A)->insn_code = CODE_FOR_$(vec_pack_usat_$a$)",
 273   "optab_handler (vec_pack_sfix_trunc_optab, $A)->insn_code = CODE_FOR_$(vec_pack_sfix_trunc_$a$)",
 274   "optab_handler (vec_pack_ufix_trunc_optab, $A)->insn_code = CODE_FOR_$(vec_pack_ufix_trunc_$a$)"
 275 };
 276
 277 static void gen_insn (rtx);
 278
 279 static void
 280 gen_insn (rtx insn)
 281 {
 282   const char *name = XSTR (insn, 0);
 283   int m1 = 0, m2 = 0, op = 0;
 284   size_t pindex;
 285   int i;
 286   const char *np, *pp, *p, *q;
 287
 288   /* Don't mention instructions whose names are the null string.
 289      They are in the machine description just to be recognized.  */
 290   if (*name == 0)
 291     return;
 292
 293   /* See if NAME matches one of the patterns we have for the optabs we know
 294      about.  */
 295
 296   for (pindex = 0; pindex < ARRAY_SIZE (optabs); pindex++)
 297     {
 298       int force_float = 0, force_int = 0, force_partial_int = 0;
 299       int force_fixed = 0;
 300       int force_consec = 0;
 301       int matches = 1;
 302
 303       for (pp = optabs[pindex]; pp[0] != '$' || pp[1] != '('; pp++)
 304         ;
 305
 306       for (pp += 2, np = name; matches && ! (pp[0] == '$' && pp[1] == ')');
 307            pp++)
 308         {
 309           if (*pp != '$')
 310             {
 311               if (*pp != *np++)
 312                 break;
 313             }
 314           else
 315             switch (*++pp)
 316               {
 317               case 'N':
 318                 force_consec = 1;
 319                 break;
 320               case 'I':
 321                 force_int = 1;
 322                 break;
 323               case 'P':
 324                 force_partial_int = 1;
 325                 break;
 326               case 'F':
 327                 force_float = 1;
 328                 break;
 329               case 'Q':
 330                 force_fixed = 1;
 331                 break;
 332               case 'V':
 333                 break;
 334               case 'c':
 335                 for (op = 0; op < NUM_RTX_CODE; op++)
 336                   {
 337                     for (p = GET_RTX_NAME(op), q = np; *p; p++, q++)
 338                       if (*p != *q)
 339                         break;
 340
 341                     /* We have to be concerned about matching "gt" and
 342                        missing "gtu", e.g., so verify we have reached the
 343                        end of thing we are to match.  */
 344                     if (*p == 0 && *q == 0
 345                         && (GET_RTX_CLASS (op) == RTX_COMPARE
 346                             || GET_RTX_CLASS (op) == RTX_COMM_COMPARE))
 347                       break;
 348                   }
 349
 350                 if (op == NUM_RTX_CODE)
 351                   matches = 0;
 352                 else
 353                   np += strlen (GET_RTX_NAME(op));
 354                 break;
 355               case 'a':
 356               case 'b':
 357                 /* This loop will stop at the first prefix match, so
 358                    look through the modes in reverse order, in case
 359                    there are extra CC modes and CC is a prefix of the
 360                    CC modes (as it should be).  */
 361                 for (i = (MAX_MACHINE_MODE) - 1; i >= 0; i--)
 362                   {
 363                     for (p = GET_MODE_NAME(i), q = np; *p; p++, q++)
 364                       if (TOLOWER (*p) != *q)
 365                         break;
 366
 367                     if (*p == 0
 368                         && (! force_int || mode_class[i] == MODE_INT
 369                             || mode_class[i] == MODE_VECTOR_INT)
 370                         && (! force_partial_int
 371                             || mode_class[i] == MODE_INT
 372                             || mode_class[i] == MODE_PARTIAL_INT
 373                             || mode_class[i] == MODE_VECTOR_INT)
 374                         && (! force_float
 375                             || mode_class[i] == MODE_FLOAT
 376                             || mode_class[i] == MODE_DECIMAL_FLOAT
 377                             || mode_class[i] == MODE_COMPLEX_FLOAT
 378                             || mode_class[i] == MODE_VECTOR_FLOAT)
 379                         && (! force_fixed
 380                             || mode_class[i] == MODE_FRACT
 381                             || mode_class[i] == MODE_UFRACT
 382                             || mode_class[i] == MODE_ACCUM
 383                             || mode_class[i] == MODE_UACCUM
 384                             || mode_class[i] == MODE_VECTOR_FRACT
 385                             || mode_class[i] == MODE_VECTOR_UFRACT
 386                             || mode_class[i] == MODE_VECTOR_ACCUM
 387                             || mode_class[i] == MODE_VECTOR_UACCUM))
 388                       break;
 389                   }
 390
 391                 if (i < 0)
 392                   matches = 0;
 393                 else if (*pp == 'a')
 394                   m1 = i, np += strlen (GET_MODE_NAME(i));
 395                 else
 396                   m2 = i, np += strlen (GET_MODE_NAME(i));
 397
 398                 force_int = force_partial_int = force_float = force_fixed = 0;
 399                 break;
 400
 401               default:
 402                 gcc_unreachable ();
 403               }
 404         }
 405
 406       if (matches && pp[0] == '$' && pp[1] == ')'
 407           && *np == 0
 408           && (! force_consec || (int) GET_MODE_WIDER_MODE(m1) == m2))
 409         break;
 410     }
 411
 412   if (pindex == ARRAY_SIZE (optabs))
 413     return;
 414
 415   /* We found a match.  If this pattern is only conditionally present,
 416      write out the "if" and two extra blanks.  */
 417
 418   if (*XSTR (insn, 2) != 0)
 419     printf ("  if (HAVE_%s)\n  ", name);
 420
 421   printf ("  ");
 422
 423   /* Now write out the initialization, making all required substitutions.  */
 424   for (pp = optabs[pindex]; *pp; pp++)
 425     {
 426       if (*pp != '$')
 427         putchar (*pp);
 428       else
 429         switch (*++pp)
 430           {
 431           case '(':  case ')':
 432           case 'I':  case 'F':  case 'N':
 433             break;
 434           case 'V':
 435             if (SCALAR_FLOAT_MODE_P (m1))
 436               printf ("v");
 437             break;
 438           case 'a':
 439             for (np = GET_MODE_NAME(m1); *np; np++)
 440               putchar (TOLOWER (*np));
 441             break;
 442           case 'b':
 443             for (np = GET_MODE_NAME(m2); *np; np++)
 444               putchar (TOLOWER (*np));
 445             break;
 446           case 'A':
 447             printf ("%smode", GET_MODE_NAME(m1));
 448             break;
 449           case 'B':
 450             printf ("%smode", GET_MODE_NAME(m2));
 451             break;
 452           case 'c':
 453             printf ("%s", GET_RTX_NAME(op));
 454             break;
 455           case 'C':
 456             for (np = GET_RTX_NAME(op); *np; np++)
 457               putchar (TOUPPER (*np));
 458             break;
 459           }
 460     }
 461
 462   printf (";\n");
 463 }
 464
 465 extern int main (int, char **);
 466
 467 int
 468 main (int argc, char **argv)
 469 {
 470   rtx desc;
 471
 472   progname = "genopinit";
 473
 474   if (init_md_reader_args (argc, argv) != SUCCESS_EXIT_CODE)
 475     return (FATAL_EXIT_CODE);
 476
 477   printf ("/* Generated automatically by the program `genopinit'\n\
 478 from the machine description file `md'.  */\n\n");
 479
 480   printf ("#include \"config.h\"\n");
 481   printf ("#include \"system.h\"\n");
 482   printf ("#include \"coretypes.h\"\n");
 483   printf ("#include \"tm.h\"\n");
 484   printf ("#include \"rtl.h\"\n");
 485   printf ("#include \"tm_p.h\"\n");
 486   printf ("#include \"flags.h\"\n");
 487   printf ("#include \"insn-config.h\"\n");
 488   printf ("#include \"recog.h\"\n");
 489   printf ("#include \"expr.h\"\n");
 490   printf ("#include \"optabs.h\"\n");
 491   printf ("#include \"reload.h\"\n\n");
 492
 493   printf ("void\ninit_all_optabs (void)\n{\n");
 494
 495   puts ("\
 496 #ifdef FIXUNS_TRUNC_LIKE_FIX_TRUNC\n\
 497   int i, j;\n\
 498 #endif\n");
 499
 500   /* Read the machine description.  */
 501
 502   while (1)
 503     {
 504       int line_no, insn_code_number = 0;
 505
 506       desc = read_md_rtx (&line_no, &insn_code_number);
 507       if (desc == NULL)
 508         break;
 509
 510       if (GET_CODE (desc) == DEFINE_INSN || GET_CODE (desc) == DEFINE_EXPAND)
 511         gen_insn (desc);
 512     }
 513
 514   puts ("\
 515 \n\
 516 #ifdef FIXUNS_TRUNC_LIKE_FIX_TRUNC\n\
 517   /* This flag says the same insns that convert to a signed fixnum\n\
 518      also convert validly to an unsigned one.  */\n\
 519   for (i = 0; i < NUM_MACHINE_MODES; i++)\n\
 520     for (j = 0; j < NUM_MACHINE_MODES; j++)\n\
 521       convert_optab_handler (ufixtrunc_optab, i, j)->insn_code\n\
 522       = convert_optab_handler (sfixtrunc_optab, i, j)->insn_code;\n\
 523 #endif\n\
 524 }");
 525
 526   fflush (stdout);
 527   return (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);
 528 }