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_convert_optab_handler (vec_load_lanes_optab, $A, $B, CODE_FOR_$(vec_load_lanes$a$b$))",
  78   "set_convert_optab_handler (vec_store_lanes_optab, $A, $B, CODE_FOR_$(vec_store_lanes$a$b$))",
  79   "set_optab_handler (add_optab, $A, CODE_FOR_$(add$P$a3$))",
  80   "set_optab_handler (addv_optab, $A, CODE_FOR_$(add$F$a3$)),\n\
  81     set_optab_handler (add_optab, $A, CODE_FOR_$(add$F$a3$))",
  82   "set_optab_handler (addv_optab, $A, CODE_FOR_$(addv$I$a3$))",
  83   "set_optab_handler (add_optab, $A, CODE_FOR_$(add$Q$a3$))",
  84   "set_optab_handler (ssadd_optab, $A, CODE_FOR_$(ssadd$Q$a3$))",
  85   "set_optab_handler (usadd_optab, $A, CODE_FOR_$(usadd$Q$a3$))",
  86   "set_optab_handler (sub_optab, $A, CODE_FOR_$(sub$P$a3$))",
  87   "set_optab_handler (subv_optab, $A, CODE_FOR_$(sub$F$a3$)),\n\
  88     set_optab_handler (sub_optab, $A, CODE_FOR_$(sub$F$a3$))",
  89   "set_optab_handler (subv_optab, $A, CODE_FOR_$(subv$I$a3$))",
  90   "set_optab_handler (sub_optab, $A, CODE_FOR_$(sub$Q$a3$))",
  91   "set_optab_handler (sssub_optab, $A, CODE_FOR_$(sssub$Q$a3$))",
  92   "set_optab_handler (ussub_optab, $A, CODE_FOR_$(ussub$Q$a3$))",
  93   "set_optab_handler (smul_optab, $A, CODE_FOR_$(mul$Q$a3$))",
  94   "set_optab_handler (ssmul_optab, $A, CODE_FOR_$(ssmul$Q$a3$))",
  95   "set_optab_handler (usmul_optab, $A, CODE_FOR_$(usmul$Q$a3$))",
  96   "set_optab_handler (smul_optab, $A, CODE_FOR_$(mul$P$a3$))",
  97   "set_optab_handler (smulv_optab, $A, CODE_FOR_$(mul$F$a3$)),\n\
  98     set_optab_handler (smul_optab, $A, CODE_FOR_$(mul$F$a3$))",
  99   "set_optab_handler (smulv_optab, $A, CODE_FOR_$(mulv$I$a3$))",
 100   "set_optab_handler (umul_highpart_optab, $A, CODE_FOR_$(umul$a3_highpart$))",
 101   "set_optab_handler (smul_highpart_optab, $A, CODE_FOR_$(smul$a3_highpart$))",
 102   "set_optab_handler (smul_widen_optab, $B, CODE_FOR_$(mul$a$b3$)$N)",
 103   "set_optab_handler (umul_widen_optab, $B, CODE_FOR_$(umul$a$b3$)$N)",
 104   "set_optab_handler (usmul_widen_optab, $B, CODE_FOR_$(usmul$a$b3$)$N)",
 105   "set_optab_handler (smadd_widen_optab, $B, CODE_FOR_$(madd$a$b4$)$N)",
 106   "set_optab_handler (umadd_widen_optab, $B, CODE_FOR_$(umadd$a$b4$)$N)",
 107   "set_optab_handler (ssmadd_widen_optab, $B, CODE_FOR_$(ssmadd$a$b4$)$N)",
 108   "set_optab_handler (usmadd_widen_optab, $B, CODE_FOR_$(usmadd$a$b4$)$N)",
 109   "set_optab_handler (smsub_widen_optab, $B, CODE_FOR_$(msub$a$b4$)$N)",
 110   "set_optab_handler (umsub_widen_optab, $B, CODE_FOR_$(umsub$a$b4$)$N)",
 111   "set_optab_handler (ssmsub_widen_optab, $B, CODE_FOR_$(ssmsub$a$b4$)$N)",
 112   "set_optab_handler (usmsub_widen_optab, $B, CODE_FOR_$(usmsub$a$b4$)$N)",
 113   "set_optab_handler (sdiv_optab, $A, CODE_FOR_$(div$a3$))",
 114   "set_optab_handler (ssdiv_optab, $A, CODE_FOR_$(ssdiv$Q$a3$))",
 115   "set_optab_handler (sdivv_optab, $A, CODE_FOR_$(div$V$I$a3$))",
 116   "set_optab_handler (udiv_optab, $A, CODE_FOR_$(udiv$I$a3$))",
 117   "set_optab_handler (udiv_optab, $A, CODE_FOR_$(udiv$Q$a3$))",
 118   "set_optab_handler (usdiv_optab, $A, CODE_FOR_$(usdiv$Q$a3$))",
 119   "set_optab_handler (sdivmod_optab, $A, CODE_FOR_$(divmod$a4$))",
 120   "set_optab_handler (udivmod_optab, $A, CODE_FOR_$(udivmod$a4$))",
 121   "set_optab_handler (smod_optab, $A, CODE_FOR_$(mod$a3$))",
 122   "set_optab_handler (umod_optab, $A, CODE_FOR_$(umod$a3$))",
 123   "set_optab_handler (fmod_optab, $A, CODE_FOR_$(fmod$a3$))",
 124   "set_optab_handler (remainder_optab, $A, CODE_FOR_$(remainder$a3$))",
 125   "set_optab_handler (ftrunc_optab, $A, CODE_FOR_$(ftrunc$F$a2$))",
 126   "set_optab_handler (and_optab, $A, CODE_FOR_$(and$a3$))",
 127   "set_optab_handler (ior_optab, $A, CODE_FOR_$(ior$a3$))",
 128   "set_optab_handler (xor_optab, $A, CODE_FOR_$(xor$a3$))",
 129   "set_optab_handler (ashl_optab, $A, CODE_FOR_$(ashl$a3$))",
 130   "set_optab_handler (ssashl_optab, $A, CODE_FOR_$(ssashl$Q$a3$))",
 131   "set_optab_handler (usashl_optab, $A, CODE_FOR_$(usashl$Q$a3$))",
 132   "set_optab_handler (ashr_optab, $A, CODE_FOR_$(ashr$a3$))",
 133   "set_optab_handler (lshr_optab, $A, CODE_FOR_$(lshr$a3$))",
 134   "set_optab_handler (rotl_optab, $A, CODE_FOR_$(rotl$a3$))",
 135   "set_optab_handler (rotr_optab, $A, CODE_FOR_$(rotr$a3$))",
 136   "set_optab_handler (vashr_optab, $A, CODE_FOR_$(vashr$a3$))",
 137   "set_optab_handler (vlshr_optab, $A, CODE_FOR_$(vlshr$a3$))",
 138   "set_optab_handler (vashl_optab, $A, CODE_FOR_$(vashl$a3$))",
 139   "set_optab_handler (vrotl_optab, $A, CODE_FOR_$(vrotl$a3$))",
 140   "set_optab_handler (vrotr_optab, $A, CODE_FOR_$(vrotr$a3$))",
 141   "set_optab_handler (smin_optab, $A, CODE_FOR_$(smin$a3$))",
 142   "set_optab_handler (smax_optab, $A, CODE_FOR_$(smax$a3$))",
 143   "set_optab_handler (umin_optab, $A, CODE_FOR_$(umin$I$a3$))",
 144   "set_optab_handler (umax_optab, $A, CODE_FOR_$(umax$I$a3$))",
 145   "set_optab_handler (pow_optab, $A, CODE_FOR_$(pow$a3$))",
 146   "set_optab_handler (atan2_optab, $A, CODE_FOR_$(atan2$a3$))",
 147   "set_optab_handler (neg_optab, $A, CODE_FOR_$(neg$P$a2$))",
 148   "set_optab_handler (negv_optab, $A, CODE_FOR_$(neg$F$a2$)),\n\
 149     set_optab_handler (neg_optab, $A, CODE_FOR_$(neg$F$a2$))",
 150   "set_optab_handler (negv_optab, $A, CODE_FOR_$(negv$I$a2$))",
 151   "set_optab_handler (neg_optab, $A, CODE_FOR_$(neg$Q$a2$))",
 152   "set_optab_handler (ssneg_optab, $A, CODE_FOR_$(ssneg$Q$a2$))",
 153   "set_optab_handler (usneg_optab, $A, CODE_FOR_$(usneg$Q$a2$))",
 154   "set_optab_handler (abs_optab, $A, CODE_FOR_$(abs$P$a2$))",
 155   "set_optab_handler (absv_optab, $A, CODE_FOR_$(abs$F$a2$)),\n\
 156     set_optab_handler (abs_optab, $A, CODE_FOR_$(abs$F$a2$))",
 157   "set_optab_handler (absv_optab, $A, CODE_FOR_$(absv$I$a2$))",
 158   "set_optab_handler (copysign_optab, $A, CODE_FOR_$(copysign$F$a3$))",
 159   "set_optab_handler (signbit_optab, $A, CODE_FOR_$(signbit$F$a2$))",
 160   "set_optab_handler (isinf_optab, $A, CODE_FOR_$(isinf$a2$))",
 161   "set_optab_handler (sqrt_optab, $A, CODE_FOR_$(sqrt$a2$))",
 162   "set_optab_handler (floor_optab, $A, CODE_FOR_$(floor$a2$))",
 163   "set_convert_optab_handler (lfloor_optab, $B, $A, CODE_FOR_$(lfloor$F$a$I$b2$))",
 164   "set_optab_handler (fma_optab, $A, CODE_FOR_$(fma$a4$))",
 165   "set_optab_handler (fms_optab, $A, CODE_FOR_$(fms$a4$))",
 166   "set_optab_handler (fnma_optab, $A, CODE_FOR_$(fnma$a4$))",
 167   "set_optab_handler (fnms_optab, $A, CODE_FOR_$(fnms$a4$))",
 168   "set_optab_handler (ceil_optab, $A, CODE_FOR_$(ceil$a2$))",
 169   "set_convert_optab_handler (lceil_optab, $B, $A, CODE_FOR_$(lceil$F$a$I$b2$))",
 170   "set_optab_handler (round_optab, $A, CODE_FOR_$(round$a2$))",
 171   "set_optab_handler (btrunc_optab, $A, CODE_FOR_$(btrunc$a2$))",
 172   "set_optab_handler (nearbyint_optab, $A, CODE_FOR_$(nearbyint$a2$))",
 173   "set_optab_handler (rint_optab, $A, CODE_FOR_$(rint$a2$))",
 174   "set_convert_optab_handler (lrint_optab, $B, $A, CODE_FOR_$(lrint$F$a$I$b2$))",
 175   "set_convert_optab_handler (lround_optab, $B, $A, CODE_FOR_$(lround$F$a$I$b2$))",
 176   "set_optab_handler (sincos_optab, $A, CODE_FOR_$(sincos$a3$))",
 177   "set_optab_handler (sin_optab, $A, CODE_FOR_$(sin$a2$))",
 178   "set_optab_handler (asin_optab, $A, CODE_FOR_$(asin$a2$))",
 179   "set_optab_handler (cos_optab, $A, CODE_FOR_$(cos$a2$))",
 180   "set_optab_handler (acos_optab, $A, CODE_FOR_$(acos$a2$))",
 181   "set_optab_handler (exp_optab, $A, CODE_FOR_$(exp$a2$))",
 182   "set_optab_handler (exp10_optab, $A, CODE_FOR_$(exp10$a2$))",
 183   "set_optab_handler (exp2_optab, $A, CODE_FOR_$(exp2$a2$))",
 184   "set_optab_handler (expm1_optab, $A, CODE_FOR_$(expm1$a2$))",
 185   "set_optab_handler (ldexp_optab, $A, CODE_FOR_$(ldexp$a3$))",
 186   "set_optab_handler (scalb_optab, $A, CODE_FOR_$(scalb$a3$))",
 187   "set_optab_handler (significand_optab, $A, CODE_FOR_$(significand$a2$))",
 188   "set_optab_handler (logb_optab, $A, CODE_FOR_$(logb$a2$))",
 189   "set_optab_handler (ilogb_optab, $A, CODE_FOR_$(ilogb$a2$))",
 190   "set_optab_handler (log_optab, $A, CODE_FOR_$(log$a2$))",
 191   "set_optab_handler (log10_optab, $A, CODE_FOR_$(log10$a2$))",
 192   "set_optab_handler (log2_optab, $A, CODE_FOR_$(log2$a2$))",
 193   "set_optab_handler (log1p_optab, $A, CODE_FOR_$(log1p$a2$))",
 194   "set_optab_handler (tan_optab, $A, CODE_FOR_$(tan$a2$))",
 195   "set_optab_handler (atan_optab, $A, CODE_FOR_$(atan$a2$))",
 196   "set_optab_handler (strlen_optab, $A, CODE_FOR_$(strlen$a$))",
 197   "set_optab_handler (one_cmpl_optab, $A, CODE_FOR_$(one_cmpl$a2$))",
 198   "set_optab_handler (bswap_optab, $A, CODE_FOR_$(bswap$a2$))",
 199   "set_optab_handler (ffs_optab, $A, CODE_FOR_$(ffs$a2$))",
 200   "set_optab_handler (clz_optab, $A, CODE_FOR_$(clz$a2$))",
 201   "set_optab_handler (ctz_optab, $A, CODE_FOR_$(ctz$a2$))",
 202   "set_optab_handler (popcount_optab, $A, CODE_FOR_$(popcount$a2$))",
 203   "set_optab_handler (parity_optab, $A, CODE_FOR_$(parity$a2$))",
 204   "set_optab_handler (mov_optab, $A, CODE_FOR_$(mov$a$))",
 205   "set_optab_handler (movstrict_optab, $A, CODE_FOR_$(movstrict$a$))",
 206   "set_optab_handler (movmisalign_optab, $A, CODE_FOR_$(movmisalign$a$))",
 207   "set_optab_handler (storent_optab, $A, CODE_FOR_$(storent$a$))",
 208   "set_optab_handler (addcc_optab, $A, CODE_FOR_$(add$acc$))",
 209   "set_direct_optab_handler (movcc_optab, $A, CODE_FOR_$(mov$acc$))",
 210   "set_optab_handler (cbranch_optab, $A, CODE_FOR_$(cbranch$a4$))",
 211   "set_optab_handler (cmov_optab, $A, CODE_FOR_$(cmov$a6$))",
 212   "set_optab_handler (cstore_optab, $A, CODE_FOR_$(cstore$a4$))",
 213   "set_optab_handler (ctrap_optab, $A, CODE_FOR_$(ctrap$a4$))",
 214   "set_optab_handler (push_optab, $A, CODE_FOR_$(push$a1$))",
 215   "set_direct_optab_handler (reload_in_optab, $A, CODE_FOR_$(reload_in$a$))",
 216   "set_direct_optab_handler (reload_out_optab, $A, CODE_FOR_$(reload_out$a$))",
 217   "set_direct_optab_handler (movmem_optab, $A, CODE_FOR_$(movmem$a$))",
 218   "set_direct_optab_handler (cmpstr_optab, $A, CODE_FOR_$(cmpstr$a$))",
 219   "set_direct_optab_handler (cmpstrn_optab, $A, CODE_FOR_$(cmpstrn$a$))",
 220   "set_direct_optab_handler (cmpmem_optab, $A, CODE_FOR_$(cmpmem$a$))",
 221   "set_direct_optab_handler (setmem_optab, $A, CODE_FOR_$(setmem$a$))",
 222   "set_direct_optab_handler (sync_add_optab, $A, CODE_FOR_$(sync_add$I$a$))",
 223   "set_direct_optab_handler (sync_sub_optab, $A, CODE_FOR_$(sync_sub$I$a$))",
 224   "set_direct_optab_handler (sync_ior_optab, $A, CODE_FOR_$(sync_ior$I$a$))",
 225   "set_direct_optab_handler (sync_and_optab, $A, CODE_FOR_$(sync_and$I$a$))",
 226   "set_direct_optab_handler (sync_xor_optab, $A, CODE_FOR_$(sync_xor$I$a$))",
 227   "set_direct_optab_handler (sync_nand_optab, $A, CODE_FOR_$(sync_nand$I$a$))",
 228   "set_direct_optab_handler (sync_old_add_optab, $A, CODE_FOR_$(sync_old_add$I$a$))",
 229   "set_direct_optab_handler (sync_old_sub_optab, $A, CODE_FOR_$(sync_old_sub$I$a$))",
 230   "set_direct_optab_handler (sync_old_ior_optab, $A, CODE_FOR_$(sync_old_ior$I$a$))",
 231   "set_direct_optab_handler (sync_old_and_optab, $A, CODE_FOR_$(sync_old_and$I$a$))",
 232   "set_direct_optab_handler (sync_old_xor_optab, $A, CODE_FOR_$(sync_old_xor$I$a$))",
 233   "set_direct_optab_handler (sync_old_nand_optab, $A, CODE_FOR_$(sync_old_nand$I$a$))",
 234   "set_direct_optab_handler (sync_new_add_optab, $A, CODE_FOR_$(sync_new_add$I$a$))",
 235   "set_direct_optab_handler (sync_new_sub_optab, $A, CODE_FOR_$(sync_new_sub$I$a$))",
 236   "set_direct_optab_handler (sync_new_ior_optab, $A, CODE_FOR_$(sync_new_ior$I$a$))",
 237   "set_direct_optab_handler (sync_new_and_optab, $A, CODE_FOR_$(sync_new_and$I$a$))",
 238   "set_direct_optab_handler (sync_new_xor_optab, $A, CODE_FOR_$(sync_new_xor$I$a$))",
 239   "set_direct_optab_handler (sync_new_nand_optab, $A, CODE_FOR_$(sync_new_nand$I$a$))",
 240   "set_direct_optab_handler (sync_compare_and_swap_optab, $A, CODE_FOR_$(sync_compare_and_swap$I$a$))",
 241   "set_direct_optab_handler (sync_lock_test_and_set_optab, $A, CODE_FOR_$(sync_lock_test_and_set$I$a$))",
 242   "set_direct_optab_handler (sync_lock_release_optab, $A, CODE_FOR_$(sync_lock_release$I$a$))",
 243   "set_optab_handler (vec_set_optab, $A, CODE_FOR_$(vec_set$a$))",
 244   "set_optab_handler (vec_extract_optab, $A, CODE_FOR_$(vec_extract$a$))",
 245   "set_optab_handler (vec_extract_even_optab, $A, CODE_FOR_$(vec_extract_even$a$))",
 246   "set_optab_handler (vec_extract_odd_optab, $A, CODE_FOR_$(vec_extract_odd$a$))",
 247   "set_optab_handler (vec_interleave_high_optab, $A, CODE_FOR_$(vec_interleave_high$a$))",
 248   "set_optab_handler (vec_interleave_low_optab, $A, CODE_FOR_$(vec_interleave_low$a$))",
 249   "set_optab_handler (vec_init_optab, $A, CODE_FOR_$(vec_init$a$))",
 250   "set_optab_handler (vec_shl_optab, $A, CODE_FOR_$(vec_shl_$a$))",
 251   "set_optab_handler (vec_shr_optab, $A, CODE_FOR_$(vec_shr_$a$))",
 252   "set_optab_handler (vec_realign_load_optab, $A, CODE_FOR_$(vec_realign_load_$a$))",
 253   "set_direct_optab_handler (vcond_optab, $A, CODE_FOR_$(vcond$a$))",
 254   "set_direct_optab_handler (vcondu_optab, $A, CODE_FOR_$(vcondu$a$))",
 255   "set_optab_handler (ssum_widen_optab, $A, CODE_FOR_$(widen_ssum$I$a3$))",
 256   "set_optab_handler (usum_widen_optab, $A, CODE_FOR_$(widen_usum$I$a3$))",
 257   "set_optab_handler (udot_prod_optab, $A, CODE_FOR_$(udot_prod$I$a$))",
 258   "set_optab_handler (sdot_prod_optab, $A, CODE_FOR_$(sdot_prod$I$a$))",
 259   "set_optab_handler (reduc_smax_optab, $A, CODE_FOR_$(reduc_smax_$a$))",
 260   "set_optab_handler (reduc_umax_optab, $A, CODE_FOR_$(reduc_umax_$a$))",
 261   "set_optab_handler (reduc_smin_optab, $A, CODE_FOR_$(reduc_smin_$a$))",
 262   "set_optab_handler (reduc_umin_optab, $A, CODE_FOR_$(reduc_umin_$a$))",
 263   "set_optab_handler (reduc_splus_optab, $A, CODE_FOR_$(reduc_splus_$a$))" ,
 264   "set_optab_handler (reduc_uplus_optab, $A, CODE_FOR_$(reduc_uplus_$a$))",
 265   "set_optab_handler (vec_widen_umult_hi_optab, $A, CODE_FOR_$(vec_widen_umult_hi_$a$))",
 266   "set_optab_handler (vec_widen_umult_lo_optab, $A, CODE_FOR_$(vec_widen_umult_lo_$a$))",
 267   "set_optab_handler (vec_widen_smult_hi_optab, $A, CODE_FOR_$(vec_widen_smult_hi_$a$))",
 268   "set_optab_handler (vec_widen_smult_lo_optab, $A, CODE_FOR_$(vec_widen_smult_lo_$a$))",
 269   "set_optab_handler (vec_unpacks_hi_optab, $A, CODE_FOR_$(vec_unpacks_hi_$a$))",
 270   "set_optab_handler (vec_unpacks_lo_optab, $A, CODE_FOR_$(vec_unpacks_lo_$a$))",
 271   "set_optab_handler (vec_unpacku_hi_optab, $A, CODE_FOR_$(vec_unpacku_hi_$a$))",
 272   "set_optab_handler (vec_unpacku_lo_optab, $A, CODE_FOR_$(vec_unpacku_lo_$a$))",
 273   "set_optab_handler (vec_unpacks_float_hi_optab, $A, CODE_FOR_$(vec_unpacks_float_hi_$a$))",
 274   "set_optab_handler (vec_unpacks_float_lo_optab, $A, CODE_FOR_$(vec_unpacks_float_lo_$a$))",
 275   "set_optab_handler (vec_unpacku_float_hi_optab, $A, CODE_FOR_$(vec_unpacku_float_hi_$a$))",
 276   "set_optab_handler (vec_unpacku_float_lo_optab, $A, CODE_FOR_$(vec_unpacku_float_lo_$a$))",
 277   "set_optab_handler (vec_pack_trunc_optab, $A, CODE_FOR_$(vec_pack_trunc_$a$))",
 278   "set_optab_handler (vec_pack_ssat_optab, $A, CODE_FOR_$(vec_pack_ssat_$a$))",
 279   "set_optab_handler (vec_pack_usat_optab, $A, CODE_FOR_$(vec_pack_usat_$a$))",
 280   "set_optab_handler (vec_pack_sfix_trunc_optab, $A, CODE_FOR_$(vec_pack_sfix_trunc_$a$))",
 281   "set_optab_handler (vec_pack_ufix_trunc_optab, $A, CODE_FOR_$(vec_pack_ufix_trunc_$a$))"
 282 };
 283
 284 static void gen_insn (rtx);
 285
 286 static void
 287 gen_insn (rtx insn)
 288 {
 289   const char *name = XSTR (insn, 0);
 290   int m1 = 0, m2 = 0, op = 0;
 291   size_t pindex;
 292   int i;
 293   const char *np, *pp, *p, *q;
 294
 295   /* Don't mention instructions whose names are the null string.
 296      They are in the machine description just to be recognized.  */
 297   if (*name == 0)
 298     return;
 299
 300   /* See if NAME matches one of the patterns we have for the optabs we know
 301      about.  */
 302
 303   for (pindex = 0; pindex < ARRAY_SIZE (optabs); pindex++)
 304     {
 305       int force_float = 0, force_int = 0, force_partial_int = 0;
 306       int force_fixed = 0;
 307       int force_consec = 0;
 308       int matches = 1;
 309
 310       for (pp = optabs[pindex]; pp[0] != '$' || pp[1] != '('; pp++)
 311         ;
 312
 313       for (pp += 2, np = name; matches && ! (pp[0] == '$' && pp[1] == ')');
 314            pp++)
 315         {
 316           if (*pp != '$')
 317             {
 318               if (*pp != *np++)
 319                 break;
 320             }
 321           else
 322             switch (*++pp)
 323               {
 324               case 'N':
 325                 force_consec = 1;
 326                 break;
 327               case 'I':
 328                 force_int = 1;
 329                 break;
 330               case 'P':
 331                 force_partial_int = 1;
 332                 break;
 333               case 'F':
 334                 force_float = 1;
 335                 break;
 336               case 'Q':
 337                 force_fixed = 1;
 338                 break;
 339               case 'V':
 340                 break;
 341               case 'c':
 342                 for (op = 0; op < NUM_RTX_CODE; op++)
 343                   {
 344                     for (p = GET_RTX_NAME(op), q = np; *p; p++, q++)
 345                       if (*p != *q)
 346                         break;
 347
 348                     /* We have to be concerned about matching "gt" and
 349                        missing "gtu", e.g., so verify we have reached the
 350                        end of thing we are to match.  */
 351                     if (*p == 0 && *q == 0
 352                         && (GET_RTX_CLASS (op) == RTX_COMPARE
 353                             || GET_RTX_CLASS (op) == RTX_COMM_COMPARE))
 354                       break;
 355                   }
 356
 357                 if (op == NUM_RTX_CODE)
 358                   matches = 0;
 359                 else
 360                   np += strlen (GET_RTX_NAME(op));
 361                 break;
 362               case 'a':
 363               case 'b':
 364                 /* This loop will stop at the first prefix match, so
 365                    look through the modes in reverse order, in case
 366                    there are extra CC modes and CC is a prefix of the
 367                    CC modes (as it should be).  */
 368                 for (i = (MAX_MACHINE_MODE) - 1; i >= 0; i--)
 369                   {
 370                     for (p = GET_MODE_NAME(i), q = np; *p; p++, q++)
 371                       if (TOLOWER (*p) != *q)
 372                         break;
 373
 374                     if (*p == 0
 375                         && (! force_int || mode_class[i] == MODE_INT
 376                             || mode_class[i] == MODE_VECTOR_INT)
 377                         && (! force_partial_int
 378                             || mode_class[i] == MODE_INT
 379                             || mode_class[i] == MODE_PARTIAL_INT
 380                             || mode_class[i] == MODE_VECTOR_INT)
 381                         && (! force_float
 382                             || mode_class[i] == MODE_FLOAT
 383                             || mode_class[i] == MODE_DECIMAL_FLOAT
 384                             || mode_class[i] == MODE_COMPLEX_FLOAT
 385                             || mode_class[i] == MODE_VECTOR_FLOAT)
 386                         && (! force_fixed
 387                             || mode_class[i] == MODE_FRACT
 388                             || mode_class[i] == MODE_UFRACT
 389                             || mode_class[i] == MODE_ACCUM
 390                             || mode_class[i] == MODE_UACCUM
 391                             || mode_class[i] == MODE_VECTOR_FRACT
 392                             || mode_class[i] == MODE_VECTOR_UFRACT
 393                             || mode_class[i] == MODE_VECTOR_ACCUM
 394                             || mode_class[i] == MODE_VECTOR_UACCUM))
 395                       break;
 396                   }
 397
 398                 if (i < 0)
 399                   matches = 0;
 400                 else if (*pp == 'a')
 401                   m1 = i, np += strlen (GET_MODE_NAME(i));
 402                 else
 403                   m2 = i, np += strlen (GET_MODE_NAME(i));
 404
 405                 force_int = force_partial_int = force_float = force_fixed = 0;
 406                 break;
 407
 408               default:
 409                 gcc_unreachable ();
 410               }
 411         }
 412
 413       if (matches && pp[0] == '$' && pp[1] == ')'
 414           && *np == 0
 415           && (! force_consec || (int) GET_MODE_WIDER_MODE(m1) == m2))
 416         break;
 417     }
 418
 419   if (pindex == ARRAY_SIZE (optabs))
 420     return;
 421
 422   /* We found a match.  If this pattern is only conditionally present,
 423      write out the "if" and two extra blanks.  */
 424
 425   if (*XSTR (insn, 2) != 0)
 426     printf ("  if (HAVE_%s)\n  ", name);
 427
 428   printf ("  ");
 429
 430   /* Now write out the initialization, making all required substitutions.  */
 431   for (pp = optabs[pindex]; *pp; pp++)
 432     {
 433       if (*pp != '$')
 434         putchar (*pp);
 435       else
 436         switch (*++pp)
 437           {
 438           case '(':  case ')':
 439           case 'I':  case 'F':  case 'N':
 440             break;
 441           case 'V':
 442             if (SCALAR_FLOAT_MODE_P (m1))
 443               printf ("v");
 444             break;
 445           case 'a':
 446             for (np = GET_MODE_NAME(m1); *np; np++)
 447               putchar (TOLOWER (*np));
 448             break;
 449           case 'b':
 450             for (np = GET_MODE_NAME(m2); *np; np++)
 451               putchar (TOLOWER (*np));
 452             break;
 453           case 'A':
 454             printf ("%smode", GET_MODE_NAME(m1));
 455             break;
 456           case 'B':
 457             printf ("%smode", GET_MODE_NAME(m2));
 458             break;
 459           case 'c':
 460             printf ("%s", GET_RTX_NAME(op));
 461             break;
 462           case 'C':
 463             for (np = GET_RTX_NAME(op); *np; np++)
 464               putchar (TOUPPER (*np));
 465             break;
 466           }
 467     }
 468
 469   printf (";\n");
 470 }
 471
 472 extern int main (int, char **);
 473
 474 int
 475 main (int argc, char **argv)
 476 {
 477   rtx desc;
 478
 479   progname = "genopinit";
 480
 481   if (!init_rtx_reader_args (argc, argv))
 482     return (FATAL_EXIT_CODE);
 483
 484   printf ("/* Generated automatically by the program `genopinit'\n\
 485 from the machine description file `md'.  */\n\n");
 486
 487   printf ("#include \"config.h\"\n");
 488   printf ("#include \"system.h\"\n");
 489   printf ("#include \"coretypes.h\"\n");
 490   printf ("#include \"tm.h\"\n");
 491   printf ("#include \"rtl.h\"\n");
 492   printf ("#include \"tm_p.h\"\n");
 493   printf ("#include \"flags.h\"\n");
 494   printf ("#include \"insn-config.h\"\n");
 495   printf ("#include \"recog.h\"\n");
 496   printf ("#include \"expr.h\"\n");
 497   printf ("#include \"optabs.h\"\n");
 498   printf ("#include \"reload.h\"\n\n");
 499
 500   printf ("void\ninit_all_optabs (void)\n{\n");
 501
 502   puts ("\
 503 #ifdef FIXUNS_TRUNC_LIKE_FIX_TRUNC\n\
 504   int i, j;\n\
 505 #endif\n");
 506
 507   /* Read the machine description.  */
 508
 509   while (1)
 510     {
 511       int line_no, insn_code_number = 0;
 512
 513       desc = read_md_rtx (&line_no, &insn_code_number);
 514       if (desc == NULL)
 515         break;
 516
 517       if (GET_CODE (desc) == DEFINE_INSN || GET_CODE (desc) == DEFINE_EXPAND)
 518         gen_insn (desc);
 519     }
 520
 521   puts ("\
 522 \n\
 523 #ifdef FIXUNS_TRUNC_LIKE_FIX_TRUNC\n\
 524   /* This flag says the same insns that convert to a signed fixnum\n\
 525      also convert validly to an unsigned one.  */\n\
 526   for (i = 0; i < NUM_MACHINE_MODES; i++)\n\
 527     for (j = 0; j < NUM_MACHINE_MODES; j++)\n\
 528       set_convert_optab_handler\n\
 529         (ufixtrunc_optab, (enum machine_mode) i, (enum machine_mode) j,\n\
 530          convert_optab_handler (sfixtrunc_optab, (enum machine_mode) i,\n\
 531                                                  (enum machine_mode) j));\n\
 532 #endif\n\
 533 }");
 534
 535   fflush (stdout);
 536   return (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);
 537 }