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, 2010
   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 { "set_convert_optab_handler (sext_optab, $B, $A, CODE_FOR_$(extend$a$b2$))",
  64   "set_convert_optab_handler (zext_optab, $B, $A, CODE_FOR_$(zero_extend$a$b2$))",
  65   "set_convert_optab_handler (sfix_optab, $B, $A, CODE_FOR_$(fix$F$a$I$b2$))",
  66   "set_convert_optab_handler (ufix_optab, $B, $A, CODE_FOR_$(fixuns$F$a$b2$))",
  67   "set_convert_optab_handler (sfixtrunc_optab, $B, $A, CODE_FOR_$(fix_trunc$F$a$I$b2$))",
  68   "set_convert_optab_handler (ufixtrunc_optab, $B, $A, CODE_FOR_$(fixuns_trunc$F$a$I$b2$))",
  69   "set_convert_optab_handler (sfloat_optab, $B, $A, CODE_FOR_$(float$I$a$F$b2$))",
  70   "set_convert_optab_handler (ufloat_optab, $B, $A, CODE_FOR_$(floatuns$I$a$F$b2$))",
  71   "set_convert_optab_handler (trunc_optab, $B, $A, CODE_FOR_$(trunc$a$b2$))",
  72   "set_convert_optab_handler (fract_optab, $B, $A, CODE_FOR_$(fract$a$b2$))",
  73   "set_convert_optab_handler (fractuns_optab, $B, $A, CODE_FOR_$(fractuns$I$a$Q$b2$))",
  74   "set_convert_optab_handler (fractuns_optab, $B, $A, CODE_FOR_$(fractuns$Q$a$I$b2$))",
  75   "set_convert_optab_handler (satfract_optab, $B, $A, CODE_FOR_$(satfract$a$Q$b2$))",
  76   "set_convert_optab_handler (satfractuns_optab, $B, $A, CODE_FOR_$(satfractuns$I$a$Q$b2$))",
  77   "set_optab_handler (add_optab, $A, CODE_FOR_$(add$P$a3$))",
  78   "set_optab_handler (addv_optab, $A, CODE_FOR_$(add$F$a3$)),\n\
  79     set_optab_handler (add_optab, $A, CODE_FOR_$(add$F$a3$))",
  80   "set_optab_handler (addv_optab, $A, CODE_FOR_$(addv$I$a3$))",
  81   "set_optab_handler (add_optab, $A, CODE_FOR_$(add$Q$a3$))",
  82   "set_optab_handler (ssadd_optab, $A, CODE_FOR_$(ssadd$Q$a3$))",
  83   "set_optab_handler (usadd_optab, $A, CODE_FOR_$(usadd$Q$a3$))",
  84   "set_optab_handler (sub_optab, $A, CODE_FOR_$(sub$P$a3$))",
  85   "set_optab_handler (subv_optab, $A, CODE_FOR_$(sub$F$a3$)),\n\
  86     set_optab_handler (sub_optab, $A, CODE_FOR_$(sub$F$a3$))",
  87   "set_optab_handler (subv_optab, $A, CODE_FOR_$(subv$I$a3$))",
  88   "set_optab_handler (sub_optab, $A, CODE_FOR_$(sub$Q$a3$))",
  89   "set_optab_handler (sssub_optab, $A, CODE_FOR_$(sssub$Q$a3$))",
  90   "set_optab_handler (ussub_optab, $A, CODE_FOR_$(ussub$Q$a3$))",
  91   "set_optab_handler (smul_optab, $A, CODE_FOR_$(mul$Q$a3$))",
  92   "set_optab_handler (ssmul_optab, $A, CODE_FOR_$(ssmul$Q$a3$))",
  93   "set_optab_handler (usmul_optab, $A, CODE_FOR_$(usmul$Q$a3$))",
  94   "set_optab_handler (smul_optab, $A, CODE_FOR_$(mul$P$a3$))",
  95   "set_optab_handler (smulv_optab, $A, CODE_FOR_$(mul$F$a3$)),\n\
  96     set_optab_handler (smul_optab, $A, CODE_FOR_$(mul$F$a3$))",
  97   "set_optab_handler (smulv_optab, $A, CODE_FOR_$(mulv$I$a3$))",
  98   "set_optab_handler (umul_highpart_optab, $A, CODE_FOR_$(umul$a3_highpart$))",
  99   "set_optab_handler (smul_highpart_optab, $A, CODE_FOR_$(smul$a3_highpart$))",
 100   "set_optab_handler (smul_widen_optab, $B, CODE_FOR_$(mul$a$b3$)$N)",
 101   "set_optab_handler (umul_widen_optab, $B, CODE_FOR_$(umul$a$b3$)$N)",
 102   "set_optab_handler (usmul_widen_optab, $B, CODE_FOR_$(usmul$a$b3$)$N)",
 103   "set_optab_handler (smadd_widen_optab, $B, CODE_FOR_$(madd$a$b4$)$N)",
 104   "set_optab_handler (umadd_widen_optab, $B, CODE_FOR_$(umadd$a$b4$)$N)",
 105   "set_optab_handler (ssmadd_widen_optab, $B, CODE_FOR_$(ssmadd$a$b4$)$N)",
 106   "set_optab_handler (usmadd_widen_optab, $B, CODE_FOR_$(usmadd$a$b4$)$N)",
 107   "set_optab_handler (smsub_widen_optab, $B, CODE_FOR_$(msub$a$b4$)$N)",
 108   "set_optab_handler (umsub_widen_optab, $B, CODE_FOR_$(umsub$a$b4$)$N)",
 109   "set_optab_handler (ssmsub_widen_optab, $B, CODE_FOR_$(ssmsub$a$b4$)$N)",
 110   "set_optab_handler (usmsub_widen_optab, $B, CODE_FOR_$(usmsub$a$b4$)$N)",
 111   "set_optab_handler (sdiv_optab, $A, CODE_FOR_$(div$a3$))",
 112   "set_optab_handler (ssdiv_optab, $A, CODE_FOR_$(ssdiv$Q$a3$))",
 113   "set_optab_handler (sdivv_optab, $A, CODE_FOR_$(div$V$I$a3$))",
 114   "set_optab_handler (udiv_optab, $A, CODE_FOR_$(udiv$I$a3$))",
 115   "set_optab_handler (udiv_optab, $A, CODE_FOR_$(udiv$Q$a3$))",
 116   "set_optab_handler (usdiv_optab, $A, CODE_FOR_$(usdiv$Q$a3$))",
 117   "set_optab_handler (sdivmod_optab, $A, CODE_FOR_$(divmod$a4$))",
 118   "set_optab_handler (udivmod_optab, $A, CODE_FOR_$(udivmod$a4$))",
 119   "set_optab_handler (smod_optab, $A, CODE_FOR_$(mod$a3$))",
 120   "set_optab_handler (umod_optab, $A, CODE_FOR_$(umod$a3$))",
 121   "set_optab_handler (fmod_optab, $A, CODE_FOR_$(fmod$a3$))",
 122   "set_optab_handler (remainder_optab, $A, CODE_FOR_$(remainder$a3$))",
 123   "set_optab_handler (ftrunc_optab, $A, CODE_FOR_$(ftrunc$F$a2$))",
 124   "set_optab_handler (and_optab, $A, CODE_FOR_$(and$a3$))",
 125   "set_optab_handler (ior_optab, $A, CODE_FOR_$(ior$a3$))",
 126   "set_optab_handler (xor_optab, $A, CODE_FOR_$(xor$a3$))",
 127   "set_optab_handler (ashl_optab, $A, CODE_FOR_$(ashl$a3$))",
 128   "set_optab_handler (ssashl_optab, $A, CODE_FOR_$(ssashl$Q$a3$))",
 129   "set_optab_handler (usashl_optab, $A, CODE_FOR_$(usashl$Q$a3$))",
 130   "set_optab_handler (ashr_optab, $A, CODE_FOR_$(ashr$a3$))",
 131   "set_optab_handler (lshr_optab, $A, CODE_FOR_$(lshr$a3$))",
 132   "set_optab_handler (rotl_optab, $A, CODE_FOR_$(rotl$a3$))",
 133   "set_optab_handler (rotr_optab, $A, CODE_FOR_$(rotr$a3$))",
 134   "set_optab_handler (vashr_optab, $A, CODE_FOR_$(vashr$a3$))",
 135   "set_optab_handler (vlshr_optab, $A, CODE_FOR_$(vlshr$a3$))",
 136   "set_optab_handler (vashl_optab, $A, CODE_FOR_$(vashl$a3$))",
 137   "set_optab_handler (vrotl_optab, $A, CODE_FOR_$(vrotl$a3$))",
 138   "set_optab_handler (vrotr_optab, $A, CODE_FOR_$(vrotr$a3$))",
 139   "set_optab_handler (smin_optab, $A, CODE_FOR_$(smin$a3$))",
 140   "set_optab_handler (smax_optab, $A, CODE_FOR_$(smax$a3$))",
 141   "set_optab_handler (umin_optab, $A, CODE_FOR_$(umin$I$a3$))",
 142   "set_optab_handler (umax_optab, $A, CODE_FOR_$(umax$I$a3$))",
 143   "set_optab_handler (pow_optab, $A, CODE_FOR_$(pow$a3$))",
 144   "set_optab_handler (atan2_optab, $A, CODE_FOR_$(atan2$a3$))",
 145   "set_optab_handler (neg_optab, $A, CODE_FOR_$(neg$P$a2$))",
 146   "set_optab_handler (negv_optab, $A, CODE_FOR_$(neg$F$a2$)),\n\
 147     set_optab_handler (neg_optab, $A, CODE_FOR_$(neg$F$a2$))",
 148   "set_optab_handler (negv_optab, $A, CODE_FOR_$(negv$I$a2$))",
 149   "set_optab_handler (neg_optab, $A, CODE_FOR_$(neg$Q$a2$))",
 150   "set_optab_handler (ssneg_optab, $A, CODE_FOR_$(ssneg$Q$a2$))",
 151   "set_optab_handler (usneg_optab, $A, CODE_FOR_$(usneg$Q$a2$))",
 152   "set_optab_handler (abs_optab, $A, CODE_FOR_$(abs$P$a2$))",
 153   "set_optab_handler (absv_optab, $A, CODE_FOR_$(abs$F$a2$)),\n\
 154     set_optab_handler (abs_optab, $A, CODE_FOR_$(abs$F$a2$))",
 155   "set_optab_handler (absv_optab, $A, CODE_FOR_$(absv$I$a2$))",
 156   "set_optab_handler (copysign_optab, $A, CODE_FOR_$(copysign$F$a3$))",
 157   "set_optab_handler (signbit_optab, $A, CODE_FOR_$(signbit$F$a2$))",
 158   "set_optab_handler (isinf_optab, $A, CODE_FOR_$(isinf$a2$))",
 159   "set_optab_handler (sqrt_optab, $A, CODE_FOR_$(sqrt$a2$))",
 160   "set_optab_handler (floor_optab, $A, CODE_FOR_$(floor$a2$))",
 161   "set_convert_optab_handler (lfloor_optab, $B, $A, CODE_FOR_$(lfloor$F$a$I$b2$))",
 162   "set_optab_handler (fma_optab, $A, CODE_FOR_$(fma$a4$))",
 163   "set_optab_handler (fms_optab, $A, CODE_FOR_$(fms$a4$))",
 164   "set_optab_handler (fnma_optab, $A, CODE_FOR_$(fnma$a4$))",
 165   "set_optab_handler (fnms_optab, $A, CODE_FOR_$(fnms$a4$))",
 166   "set_optab_handler (ceil_optab, $A, CODE_FOR_$(ceil$a2$))",
 167   "set_convert_optab_handler (lceil_optab, $B, $A, CODE_FOR_$(lceil$F$a$I$b2$))",
 168   "set_optab_handler (round_optab, $A, CODE_FOR_$(round$a2$))",
 169   "set_optab_handler (btrunc_optab, $A, CODE_FOR_$(btrunc$a2$))",
 170   "set_optab_handler (nearbyint_optab, $A, CODE_FOR_$(nearbyint$a2$))",
 171   "set_optab_handler (rint_optab, $A, CODE_FOR_$(rint$a2$))",
 172   "set_convert_optab_handler (lrint_optab, $B, $A, CODE_FOR_$(lrint$F$a$I$b2$))",
 173   "set_convert_optab_handler (lround_optab, $B, $A, CODE_FOR_$(lround$F$a$I$b2$))",
 174   "set_optab_handler (sincos_optab, $A, CODE_FOR_$(sincos$a3$))",
 175   "set_optab_handler (sin_optab, $A, CODE_FOR_$(sin$a2$))",
 176   "set_optab_handler (asin_optab, $A, CODE_FOR_$(asin$a2$))",
 177   "set_optab_handler (cos_optab, $A, CODE_FOR_$(cos$a2$))",
 178   "set_optab_handler (acos_optab, $A, CODE_FOR_$(acos$a2$))",
 179   "set_optab_handler (exp_optab, $A, CODE_FOR_$(exp$a2$))",
 180   "set_optab_handler (exp10_optab, $A, CODE_FOR_$(exp10$a2$))",
 181   "set_optab_handler (exp2_optab, $A, CODE_FOR_$(exp2$a2$))",
 182   "set_optab_handler (expm1_optab, $A, CODE_FOR_$(expm1$a2$))",
 183   "set_optab_handler (ldexp_optab, $A, CODE_FOR_$(ldexp$a3$))",
 184   "set_optab_handler (scalb_optab, $A, CODE_FOR_$(scalb$a3$))",
 185   "set_optab_handler (significand_optab, $A, CODE_FOR_$(significand$a2$))",
 186   "set_optab_handler (logb_optab, $A, CODE_FOR_$(logb$a2$))",
 187   "set_optab_handler (ilogb_optab, $A, CODE_FOR_$(ilogb$a2$))",
 188   "set_optab_handler (log_optab, $A, CODE_FOR_$(log$a2$))",
 189   "set_optab_handler (log10_optab, $A, CODE_FOR_$(log10$a2$))",
 190   "set_optab_handler (log2_optab, $A, CODE_FOR_$(log2$a2$))",
 191   "set_optab_handler (log1p_optab, $A, CODE_FOR_$(log1p$a2$))",
 192   "set_optab_handler (tan_optab, $A, CODE_FOR_$(tan$a2$))",
 193   "set_optab_handler (atan_optab, $A, CODE_FOR_$(atan$a2$))",
 194   "set_optab_handler (strlen_optab, $A, CODE_FOR_$(strlen$a$))",
 195   "set_optab_handler (one_cmpl_optab, $A, CODE_FOR_$(one_cmpl$a2$))",
 196   "set_optab_handler (bswap_optab, $A, CODE_FOR_$(bswap$a2$))",
 197   "set_optab_handler (ffs_optab, $A, CODE_FOR_$(ffs$a2$))",
 198   "set_optab_handler (clz_optab, $A, CODE_FOR_$(clz$a2$))",
 199   "set_optab_handler (ctz_optab, $A, CODE_FOR_$(ctz$a2$))",
 200   "set_optab_handler (popcount_optab, $A, CODE_FOR_$(popcount$a2$))",
 201   "set_optab_handler (parity_optab, $A, CODE_FOR_$(parity$a2$))",
 202   "set_optab_handler (mov_optab, $A, CODE_FOR_$(mov$a$))",
 203   "set_optab_handler (movstrict_optab, $A, CODE_FOR_$(movstrict$a$))",
 204   "set_optab_handler (movmisalign_optab, $A, CODE_FOR_$(movmisalign$a$))",
 205   "set_optab_handler (storent_optab, $A, CODE_FOR_$(storent$a$))",
 206   "set_optab_handler (addcc_optab, $A, CODE_FOR_$(add$acc$))",
 207   "set_direct_optab_handler (movcc_optab, $A, CODE_FOR_$(mov$acc$))",
 208   "set_optab_handler (cbranch_optab, $A, CODE_FOR_$(cbranch$a4$))",
 209   "set_optab_handler (cmov_optab, $A, CODE_FOR_$(cmov$a6$))",
 210   "set_optab_handler (cstore_optab, $A, CODE_FOR_$(cstore$a4$))",
 211   "set_optab_handler (ctrap_optab, $A, CODE_FOR_$(ctrap$a4$))",
 212   "set_optab_handler (push_optab, $A, CODE_FOR_$(push$a1$))",
 213   "set_direct_optab_handler (reload_in_optab, $A, CODE_FOR_$(reload_in$a$))",
 214   "set_direct_optab_handler (reload_out_optab, $A, CODE_FOR_$(reload_out$a$))",
 215   "set_direct_optab_handler (movmem_optab, $A, CODE_FOR_$(movmem$a$))",
 216   "set_direct_optab_handler (cmpstr_optab, $A, CODE_FOR_$(cmpstr$a$))",
 217   "set_direct_optab_handler (cmpstrn_optab, $A, CODE_FOR_$(cmpstrn$a$))",
 218   "set_direct_optab_handler (cmpmem_optab, $A, CODE_FOR_$(cmpmem$a$))",
 219   "set_direct_optab_handler (setmem_optab, $A, CODE_FOR_$(setmem$a$))",
 220   "set_direct_optab_handler (sync_add_optab, $A, CODE_FOR_$(sync_add$I$a$))",
 221   "set_direct_optab_handler (sync_sub_optab, $A, CODE_FOR_$(sync_sub$I$a$))",
 222   "set_direct_optab_handler (sync_ior_optab, $A, CODE_FOR_$(sync_ior$I$a$))",
 223   "set_direct_optab_handler (sync_and_optab, $A, CODE_FOR_$(sync_and$I$a$))",
 224   "set_direct_optab_handler (sync_xor_optab, $A, CODE_FOR_$(sync_xor$I$a$))",
 225   "set_direct_optab_handler (sync_nand_optab, $A, CODE_FOR_$(sync_nand$I$a$))",
 226   "set_direct_optab_handler (sync_old_add_optab, $A, CODE_FOR_$(sync_old_add$I$a$))",
 227   "set_direct_optab_handler (sync_old_sub_optab, $A, CODE_FOR_$(sync_old_sub$I$a$))",
 228   "set_direct_optab_handler (sync_old_ior_optab, $A, CODE_FOR_$(sync_old_ior$I$a$))",
 229   "set_direct_optab_handler (sync_old_and_optab, $A, CODE_FOR_$(sync_old_and$I$a$))",
 230   "set_direct_optab_handler (sync_old_xor_optab, $A, CODE_FOR_$(sync_old_xor$I$a$))",
 231   "set_direct_optab_handler (sync_old_nand_optab, $A, CODE_FOR_$(sync_old_nand$I$a$))",
 232   "set_direct_optab_handler (sync_new_add_optab, $A, CODE_FOR_$(sync_new_add$I$a$))",
 233   "set_direct_optab_handler (sync_new_sub_optab, $A, CODE_FOR_$(sync_new_sub$I$a$))",
 234   "set_direct_optab_handler (sync_new_ior_optab, $A, CODE_FOR_$(sync_new_ior$I$a$))",
 235   "set_direct_optab_handler (sync_new_and_optab, $A, CODE_FOR_$(sync_new_and$I$a$))",
 236   "set_direct_optab_handler (sync_new_xor_optab, $A, CODE_FOR_$(sync_new_xor$I$a$))",
 237   "set_direct_optab_handler (sync_new_nand_optab, $A, CODE_FOR_$(sync_new_nand$I$a$))",
 238   "set_direct_optab_handler (sync_compare_and_swap_optab, $A, CODE_FOR_$(sync_compare_and_swap$I$a$))",
 239   "set_direct_optab_handler (sync_lock_test_and_set_optab, $A, CODE_FOR_$(sync_lock_test_and_set$I$a$))",
 240   "set_direct_optab_handler (sync_lock_release_optab, $A, CODE_FOR_$(sync_lock_release$I$a$))",
 241   "set_optab_handler (vec_set_optab, $A, CODE_FOR_$(vec_set$a$))",
 242   "set_optab_handler (vec_extract_optab, $A, CODE_FOR_$(vec_extract$a$))",
 243   "set_optab_handler (vec_extract_even_optab, $A, CODE_FOR_$(vec_extract_even$a$))",
 244   "set_optab_handler (vec_extract_odd_optab, $A, CODE_FOR_$(vec_extract_odd$a$))",
 245   "set_optab_handler (vec_interleave_high_optab, $A, CODE_FOR_$(vec_interleave_high$a$))",
 246   "set_optab_handler (vec_interleave_low_optab, $A, CODE_FOR_$(vec_interleave_low$a$))",
 247   "set_optab_handler (vec_init_optab, $A, CODE_FOR_$(vec_init$a$))",
 248   "set_optab_handler (vec_shl_optab, $A, CODE_FOR_$(vec_shl_$a$))",
 249   "set_optab_handler (vec_shr_optab, $A, CODE_FOR_$(vec_shr_$a$))",
 250   "set_optab_handler (vec_realign_load_optab, $A, CODE_FOR_$(vec_realign_load_$a$))",
 251   "set_direct_optab_handler (vcond_optab, $A, CODE_FOR_$(vcond$a$))",
 252   "set_direct_optab_handler (vcondu_optab, $A, CODE_FOR_$(vcondu$a$))",
 253   "set_optab_handler (ssum_widen_optab, $A, CODE_FOR_$(widen_ssum$I$a3$))",
 254   "set_optab_handler (usum_widen_optab, $A, CODE_FOR_$(widen_usum$I$a3$))",
 255   "set_optab_handler (udot_prod_optab, $A, CODE_FOR_$(udot_prod$I$a$))",
 256   "set_optab_handler (sdot_prod_optab, $A, CODE_FOR_$(sdot_prod$I$a$))",
 257   "set_optab_handler (reduc_smax_optab, $A, CODE_FOR_$(reduc_smax_$a$))",
 258   "set_optab_handler (reduc_umax_optab, $A, CODE_FOR_$(reduc_umax_$a$))",
 259   "set_optab_handler (reduc_smin_optab, $A, CODE_FOR_$(reduc_smin_$a$))",
 260   "set_optab_handler (reduc_umin_optab, $A, CODE_FOR_$(reduc_umin_$a$))",
 261   "set_optab_handler (reduc_splus_optab, $A, CODE_FOR_$(reduc_splus_$a$))" ,
 262   "set_optab_handler (reduc_uplus_optab, $A, CODE_FOR_$(reduc_uplus_$a$))",
 263   "set_optab_handler (vec_widen_umult_hi_optab, $A, CODE_FOR_$(vec_widen_umult_hi_$a$))",
 264   "set_optab_handler (vec_widen_umult_lo_optab, $A, CODE_FOR_$(vec_widen_umult_lo_$a$))",
 265   "set_optab_handler (vec_widen_smult_hi_optab, $A, CODE_FOR_$(vec_widen_smult_hi_$a$))",
 266   "set_optab_handler (vec_widen_smult_lo_optab, $A, CODE_FOR_$(vec_widen_smult_lo_$a$))",
 267   "set_optab_handler (vec_unpacks_hi_optab, $A, CODE_FOR_$(vec_unpacks_hi_$a$))",
 268   "set_optab_handler (vec_unpacks_lo_optab, $A, CODE_FOR_$(vec_unpacks_lo_$a$))",
 269   "set_optab_handler (vec_unpacku_hi_optab, $A, CODE_FOR_$(vec_unpacku_hi_$a$))",
 270   "set_optab_handler (vec_unpacku_lo_optab, $A, CODE_FOR_$(vec_unpacku_lo_$a$))",
 271   "set_optab_handler (vec_unpacks_float_hi_optab, $A, CODE_FOR_$(vec_unpacks_float_hi_$a$))",
 272   "set_optab_handler (vec_unpacks_float_lo_optab, $A, CODE_FOR_$(vec_unpacks_float_lo_$a$))",
 273   "set_optab_handler (vec_unpacku_float_hi_optab, $A, CODE_FOR_$(vec_unpacku_float_hi_$a$))",
 274   "set_optab_handler (vec_unpacku_float_lo_optab, $A, CODE_FOR_$(vec_unpacku_float_lo_$a$))",
 275   "set_optab_handler (vec_pack_trunc_optab, $A, CODE_FOR_$(vec_pack_trunc_$a$))",
 276   "set_optab_handler (vec_pack_ssat_optab, $A, CODE_FOR_$(vec_pack_ssat_$a$))",
 277   "set_optab_handler (vec_pack_usat_optab, $A, CODE_FOR_$(vec_pack_usat_$a$))",
 278   "set_optab_handler (vec_pack_sfix_trunc_optab, $A, CODE_FOR_$(vec_pack_sfix_trunc_$a$))",
 279   "set_optab_handler (vec_pack_ufix_trunc_optab, $A, CODE_FOR_$(vec_pack_ufix_trunc_$a$))"
 280 };
 281
 282 static void gen_insn (rtx);
 283
 284 static void
 285 gen_insn (rtx insn)
 286 {
 287   const char *name = XSTR (insn, 0);
 288   int m1 = 0, m2 = 0, op = 0;
 289   size_t pindex;
 290   int i;
 291   const char *np, *pp, *p, *q;
 292
 293   /* Don't mention instructions whose names are the null string.
 294      They are in the machine description just to be recognized.  */
 295   if (*name == 0)
 296     return;
 297
 298   /* See if NAME matches one of the patterns we have for the optabs we know
 299      about.  */
 300
 301   for (pindex = 0; pindex < ARRAY_SIZE (optabs); pindex++)
 302     {
 303       int force_float = 0, force_int = 0, force_partial_int = 0;
 304       int force_fixed = 0;
 305       int force_consec = 0;
 306       int matches = 1;
 307
 308       for (pp = optabs[pindex]; pp[0] != '$' || pp[1] != '('; pp++)
 309         ;
 310
 311       for (pp += 2, np = name; matches && ! (pp[0] == '$' && pp[1] == ')');
 312            pp++)
 313         {
 314           if (*pp != '$')
 315             {
 316               if (*pp != *np++)
 317                 break;
 318             }
 319           else
 320             switch (*++pp)
 321               {
 322               case 'N':
 323                 force_consec = 1;
 324                 break;
 325               case 'I':
 326                 force_int = 1;
 327                 break;
 328               case 'P':
 329                 force_partial_int = 1;
 330                 break;
 331               case 'F':
 332                 force_float = 1;
 333                 break;
 334               case 'Q':
 335                 force_fixed = 1;
 336                 break;
 337               case 'V':
 338                 break;
 339               case 'c':
 340                 for (op = 0; op < NUM_RTX_CODE; op++)
 341                   {
 342                     for (p = GET_RTX_NAME(op), q = np; *p; p++, q++)
 343                       if (*p != *q)
 344                         break;
 345
 346                     /* We have to be concerned about matching "gt" and
 347                        missing "gtu", e.g., so verify we have reached the
 348                        end of thing we are to match.  */
 349                     if (*p == 0 && *q == 0
 350                         && (GET_RTX_CLASS (op) == RTX_COMPARE
 351                             || GET_RTX_CLASS (op) == RTX_COMM_COMPARE))
 352                       break;
 353                   }
 354
 355                 if (op == NUM_RTX_CODE)
 356                   matches = 0;
 357                 else
 358                   np += strlen (GET_RTX_NAME(op));
 359                 break;
 360               case 'a':
 361               case 'b':
 362                 /* This loop will stop at the first prefix match, so
 363                    look through the modes in reverse order, in case
 364                    there are extra CC modes and CC is a prefix of the
 365                    CC modes (as it should be).  */
 366                 for (i = (MAX_MACHINE_MODE) - 1; i >= 0; i--)
 367                   {
 368                     for (p = GET_MODE_NAME(i), q = np; *p; p++, q++)
 369                       if (TOLOWER (*p) != *q)
 370                         break;
 371
 372                     if (*p == 0
 373                         && (! force_int || mode_class[i] == MODE_INT
 374                             || mode_class[i] == MODE_VECTOR_INT)
 375                         && (! force_partial_int
 376                             || mode_class[i] == MODE_INT
 377                             || mode_class[i] == MODE_PARTIAL_INT
 378                             || mode_class[i] == MODE_VECTOR_INT)
 379                         && (! force_float
 380                             || mode_class[i] == MODE_FLOAT
 381                             || mode_class[i] == MODE_DECIMAL_FLOAT
 382                             || mode_class[i] == MODE_COMPLEX_FLOAT
 383                             || mode_class[i] == MODE_VECTOR_FLOAT)
 384                         && (! force_fixed
 385                             || mode_class[i] == MODE_FRACT
 386                             || mode_class[i] == MODE_UFRACT
 387                             || mode_class[i] == MODE_ACCUM
 388                             || mode_class[i] == MODE_UACCUM
 389                             || mode_class[i] == MODE_VECTOR_FRACT
 390                             || mode_class[i] == MODE_VECTOR_UFRACT
 391                             || mode_class[i] == MODE_VECTOR_ACCUM
 392                             || mode_class[i] == MODE_VECTOR_UACCUM))
 393                       break;
 394                   }
 395
 396                 if (i < 0)
 397                   matches = 0;
 398                 else if (*pp == 'a')
 399                   m1 = i, np += strlen (GET_MODE_NAME(i));
 400                 else
 401                   m2 = i, np += strlen (GET_MODE_NAME(i));
 402
 403                 force_int = force_partial_int = force_float = force_fixed = 0;
 404                 break;
 405
 406               default:
 407                 gcc_unreachable ();
 408               }
 409         }
 410
 411       if (matches && pp[0] == '$' && pp[1] == ')'
 412           && *np == 0
 413           && (! force_consec || (int) GET_MODE_WIDER_MODE(m1) == m2))
 414         break;
 415     }
 416
 417   if (pindex == ARRAY_SIZE (optabs))
 418     return;
 419
 420   /* We found a match.  If this pattern is only conditionally present,
 421      write out the "if" and two extra blanks.  */
 422
 423   if (*XSTR (insn, 2) != 0)
 424     printf ("  if (HAVE_%s)\n  ", name);
 425
 426   printf ("  ");
 427
 428   /* Now write out the initialization, making all required substitutions.  */
 429   for (pp = optabs[pindex]; *pp; pp++)
 430     {
 431       if (*pp != '$')
 432         putchar (*pp);
 433       else
 434         switch (*++pp)
 435           {
 436           case '(':  case ')':
 437           case 'I':  case 'F':  case 'N':
 438             break;
 439           case 'V':
 440             if (SCALAR_FLOAT_MODE_P (m1))
 441               printf ("v");
 442             break;
 443           case 'a':
 444             for (np = GET_MODE_NAME(m1); *np; np++)
 445               putchar (TOLOWER (*np));
 446             break;
 447           case 'b':
 448             for (np = GET_MODE_NAME(m2); *np; np++)
 449               putchar (TOLOWER (*np));
 450             break;
 451           case 'A':
 452             printf ("%smode", GET_MODE_NAME(m1));
 453             break;
 454           case 'B':
 455             printf ("%smode", GET_MODE_NAME(m2));
 456             break;
 457           case 'c':
 458             printf ("%s", GET_RTX_NAME(op));
 459             break;
 460           case 'C':
 461             for (np = GET_RTX_NAME(op); *np; np++)
 462               putchar (TOUPPER (*np));
 463             break;
 464           }
 465     }
 466
 467   printf (";\n");
 468 }
 469
 470 extern int main (int, char **);
 471
 472 int
 473 main (int argc, char **argv)
 474 {
 475   rtx desc;
 476
 477   progname = "genopinit";
 478
 479   if (!init_rtx_reader_args (argc, argv))
 480     return (FATAL_EXIT_CODE);
 481
 482   printf ("/* Generated automatically by the program `genopinit'\n\
 483 from the machine description file `md'.  */\n\n");
 484
 485   printf ("#include \"config.h\"\n");
 486   printf ("#include \"system.h\"\n");
 487   printf ("#include \"coretypes.h\"\n");
 488   printf ("#include \"tm.h\"\n");
 489   printf ("#include \"rtl.h\"\n");
 490   printf ("#include \"tm_p.h\"\n");
 491   printf ("#include \"flags.h\"\n");
 492   printf ("#include \"insn-config.h\"\n");
 493   printf ("#include \"recog.h\"\n");
 494   printf ("#include \"expr.h\"\n");
 495   printf ("#include \"optabs.h\"\n");
 496   printf ("#include \"reload.h\"\n\n");
 497
 498   printf ("void\ninit_all_optabs (void)\n{\n");
 499
 500   puts ("\
 501 #ifdef FIXUNS_TRUNC_LIKE_FIX_TRUNC\n\
 502   int i, j;\n\
 503 #endif\n");
 504
 505   /* Read the machine description.  */
 506
 507   while (1)
 508     {
 509       int line_no, insn_code_number = 0;
 510
 511       desc = read_md_rtx (&line_no, &insn_code_number);
 512       if (desc == NULL)
 513         break;
 514
 515       if (GET_CODE (desc) == DEFINE_INSN || GET_CODE (desc) == DEFINE_EXPAND)
 516         gen_insn (desc);
 517     }
 518
 519   puts ("\
 520 \n\
 521 #ifdef FIXUNS_TRUNC_LIKE_FIX_TRUNC\n\
 522   /* This flag says the same insns that convert to a signed fixnum\n\
 523      also convert validly to an unsigned one.  */\n\
 524   for (i = 0; i < NUM_MACHINE_MODES; i++)\n\
 525     for (j = 0; j < NUM_MACHINE_MODES; j++)\n\
 526       set_convert_optab_handler\n\
 527         (ufixtrunc_optab, (enum machine_mode) i, (enum machine_mode) j,\n\
 528          convert_optab_handler (sfixtrunc_optab, (enum machine_mode) i,\n\
 529                                                  (enum machine_mode) j));\n\
 530 #endif\n\
 531 }");
 532
 533   fflush (stdout);
 534   return (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);
 535 }