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 in
  50    the same mode class, and $b must be greater than $a (e.g, QImode
  51    and HImode).
  52
  53    $I means that only full integer modes should be considered for the
  54    next mode, and $F means that only float modes should be considered.
  55    $P means that both full and partial integer modes should be considered.
  56    $Q means that only fixed-point modes should be considered.
  57
  58    $V means to emit 'v' if the first mode is a MODE_FLOAT mode.
  59
  60    For some optabs, we store the operation by RTL codes.  These are only
  61    used for comparisons.  In that case, $c and $C are the lower-case and
  62    upper-case forms of the comparison, respectively.  */
  63
  64 static const char * const optabs[] =
  65 { "set_convert_optab_handler (sext_optab, $B, $A, CODE_FOR_$(extend$a$b2$))",
  66   "set_convert_optab_handler (zext_optab, $B, $A, CODE_FOR_$(zero_extend$a$b2$))",
  67   "set_convert_optab_handler (sfix_optab, $B, $A, CODE_FOR_$(fix$F$a$I$b2$))",
  68   "set_convert_optab_handler (ufix_optab, $B, $A, CODE_FOR_$(fixuns$F$a$b2$))",
  69   "set_convert_optab_handler (sfixtrunc_optab, $B, $A, CODE_FOR_$(fix_trunc$F$a$I$b2$))",
  70   "set_convert_optab_handler (ufixtrunc_optab, $B, $A, CODE_FOR_$(fixuns_trunc$F$a$I$b2$))",
  71   "set_convert_optab_handler (sfloat_optab, $B, $A, CODE_FOR_$(float$I$a$F$b2$))",
  72   "set_convert_optab_handler (ufloat_optab, $B, $A, CODE_FOR_$(floatuns$I$a$F$b2$))",
  73   "set_convert_optab_handler (trunc_optab, $B, $A, CODE_FOR_$(trunc$a$b2$))",
  74   "set_convert_optab_handler (fract_optab, $B, $A, CODE_FOR_$(fract$a$b2$))",
  75   "set_convert_optab_handler (fractuns_optab, $B, $A, CODE_FOR_$(fractuns$I$a$Q$b2$))",
  76   "set_convert_optab_handler (fractuns_optab, $B, $A, CODE_FOR_$(fractuns$Q$a$I$b2$))",
  77   "set_convert_optab_handler (satfract_optab, $B, $A, CODE_FOR_$(satfract$a$Q$b2$))",
  78   "set_convert_optab_handler (satfractuns_optab, $B, $A, CODE_FOR_$(satfractuns$I$a$Q$b2$))",
  79   "set_convert_optab_handler (vec_load_lanes_optab, $A, $B, CODE_FOR_$(vec_load_lanes$a$b$))",
  80   "set_convert_optab_handler (vec_store_lanes_optab, $A, $B, CODE_FOR_$(vec_store_lanes$a$b$))",
  81   "set_optab_handler (add_optab, $A, CODE_FOR_$(add$P$a3$))",
  82   "set_optab_handler (addv_optab, $A, CODE_FOR_$(add$F$a3$)),\n\
  83     set_optab_handler (add_optab, $A, CODE_FOR_$(add$F$a3$))",
  84   "set_optab_handler (addv_optab, $A, CODE_FOR_$(addv$I$a3$))",
  85   "set_optab_handler (add_optab, $A, CODE_FOR_$(add$Q$a3$))",
  86   "set_optab_handler (ssadd_optab, $A, CODE_FOR_$(ssadd$Q$a3$))",
  87   "set_optab_handler (usadd_optab, $A, CODE_FOR_$(usadd$Q$a3$))",
  88   "set_optab_handler (sub_optab, $A, CODE_FOR_$(sub$P$a3$))",
  89   "set_optab_handler (subv_optab, $A, CODE_FOR_$(sub$F$a3$)),\n\
  90     set_optab_handler (sub_optab, $A, CODE_FOR_$(sub$F$a3$))",
  91   "set_optab_handler (subv_optab, $A, CODE_FOR_$(subv$I$a3$))",
  92   "set_optab_handler (sub_optab, $A, CODE_FOR_$(sub$Q$a3$))",
  93   "set_optab_handler (sssub_optab, $A, CODE_FOR_$(sssub$Q$a3$))",
  94   "set_optab_handler (ussub_optab, $A, CODE_FOR_$(ussub$Q$a3$))",
  95   "set_optab_handler (smul_optab, $A, CODE_FOR_$(mul$Q$a3$))",
  96   "set_optab_handler (ssmul_optab, $A, CODE_FOR_$(ssmul$Q$a3$))",
  97   "set_optab_handler (usmul_optab, $A, CODE_FOR_$(usmul$Q$a3$))",
  98   "set_optab_handler (smul_optab, $A, CODE_FOR_$(mul$P$a3$))",
  99   "set_optab_handler (smulv_optab, $A, CODE_FOR_$(mul$F$a3$)),\n\
 100     set_optab_handler (smul_optab, $A, CODE_FOR_$(mul$F$a3$))",
 101   "set_optab_handler (smulv_optab, $A, CODE_FOR_$(mulv$I$a3$))",
 102   "set_optab_handler (umul_highpart_optab, $A, CODE_FOR_$(umul$a3_highpart$))",
 103   "set_optab_handler (smul_highpart_optab, $A, CODE_FOR_$(smul$a3_highpart$))",
 104   "set_widening_optab_handler (smul_widen_optab, $B, $A, CODE_FOR_$(mul$a$b3$)$N)",
 105   "set_widening_optab_handler (umul_widen_optab, $B, $A, CODE_FOR_$(umul$a$b3$)$N)",
 106   "set_widening_optab_handler (usmul_widen_optab, $B, $A, CODE_FOR_$(usmul$a$b3$)$N)",
 107   "set_widening_optab_handler (smadd_widen_optab, $B, $A, CODE_FOR_$(madd$a$b4$)$N)",
 108   "set_widening_optab_handler (umadd_widen_optab, $B, $A, CODE_FOR_$(umadd$a$b4$)$N)",
 109   "set_widening_optab_handler (ssmadd_widen_optab, $B, $A, CODE_FOR_$(ssmadd$a$b4$)$N)",
 110   "set_widening_optab_handler (usmadd_widen_optab, $B, $A, CODE_FOR_$(usmadd$a$b4$)$N)",
 111   "set_widening_optab_handler (smsub_widen_optab, $B, $A, CODE_FOR_$(msub$a$b4$)$N)",
 112   "set_widening_optab_handler (umsub_widen_optab, $B, $A, CODE_FOR_$(umsub$a$b4$)$N)",
 113   "set_widening_optab_handler (ssmsub_widen_optab, $B, $A, CODE_FOR_$(ssmsub$a$b4$)$N)",
 114   "set_widening_optab_handler (usmsub_widen_optab, $B, $A, CODE_FOR_$(usmsub$a$b4$)$N)",
 115   "set_optab_handler (sdiv_optab, $A, CODE_FOR_$(div$a3$))",
 116   "set_optab_handler (ssdiv_optab, $A, CODE_FOR_$(ssdiv$Q$a3$))",
 117   "set_optab_handler (sdivv_optab, $A, CODE_FOR_$(div$V$I$a3$))",
 118   "set_optab_handler (udiv_optab, $A, CODE_FOR_$(udiv$I$a3$))",
 119   "set_optab_handler (udiv_optab, $A, CODE_FOR_$(udiv$Q$a3$))",
 120   "set_optab_handler (usdiv_optab, $A, CODE_FOR_$(usdiv$Q$a3$))",
 121   "set_optab_handler (sdivmod_optab, $A, CODE_FOR_$(divmod$a4$))",
 122   "set_optab_handler (udivmod_optab, $A, CODE_FOR_$(udivmod$a4$))",
 123   "set_optab_handler (smod_optab, $A, CODE_FOR_$(mod$a3$))",
 124   "set_optab_handler (umod_optab, $A, CODE_FOR_$(umod$a3$))",
 125   "set_optab_handler (fmod_optab, $A, CODE_FOR_$(fmod$a3$))",
 126   "set_optab_handler (remainder_optab, $A, CODE_FOR_$(remainder$a3$))",
 127   "set_optab_handler (ftrunc_optab, $A, CODE_FOR_$(ftrunc$F$a2$))",
 128   "set_optab_handler (and_optab, $A, CODE_FOR_$(and$a3$))",
 129   "set_optab_handler (ior_optab, $A, CODE_FOR_$(ior$a3$))",
 130   "set_optab_handler (xor_optab, $A, CODE_FOR_$(xor$a3$))",
 131   "set_optab_handler (ashl_optab, $A, CODE_FOR_$(ashl$a3$))",
 132   "set_optab_handler (ssashl_optab, $A, CODE_FOR_$(ssashl$Q$a3$))",
 133   "set_optab_handler (usashl_optab, $A, CODE_FOR_$(usashl$Q$a3$))",
 134   "set_optab_handler (ashr_optab, $A, CODE_FOR_$(ashr$a3$))",
 135   "set_optab_handler (lshr_optab, $A, CODE_FOR_$(lshr$a3$))",
 136   "set_optab_handler (rotl_optab, $A, CODE_FOR_$(rotl$a3$))",
 137   "set_optab_handler (rotr_optab, $A, CODE_FOR_$(rotr$a3$))",
 138   "set_optab_handler (vashr_optab, $A, CODE_FOR_$(vashr$a3$))",
 139   "set_optab_handler (vlshr_optab, $A, CODE_FOR_$(vlshr$a3$))",
 140   "set_optab_handler (vashl_optab, $A, CODE_FOR_$(vashl$a3$))",
 141   "set_optab_handler (vrotl_optab, $A, CODE_FOR_$(vrotl$a3$))",
 142   "set_optab_handler (vrotr_optab, $A, CODE_FOR_$(vrotr$a3$))",
 143   "set_optab_handler (smin_optab, $A, CODE_FOR_$(smin$a3$))",
 144   "set_optab_handler (smax_optab, $A, CODE_FOR_$(smax$a3$))",
 145   "set_optab_handler (umin_optab, $A, CODE_FOR_$(umin$I$a3$))",
 146   "set_optab_handler (umax_optab, $A, CODE_FOR_$(umax$I$a3$))",
 147   "set_optab_handler (pow_optab, $A, CODE_FOR_$(pow$a3$))",
 148   "set_optab_handler (atan2_optab, $A, CODE_FOR_$(atan2$a3$))",
 149   "set_optab_handler (neg_optab, $A, CODE_FOR_$(neg$P$a2$))",
 150   "set_optab_handler (negv_optab, $A, CODE_FOR_$(neg$F$a2$)),\n\
 151     set_optab_handler (neg_optab, $A, CODE_FOR_$(neg$F$a2$))",
 152   "set_optab_handler (negv_optab, $A, CODE_FOR_$(negv$I$a2$))",
 153   "set_optab_handler (neg_optab, $A, CODE_FOR_$(neg$Q$a2$))",
 154   "set_optab_handler (ssneg_optab, $A, CODE_FOR_$(ssneg$Q$a2$))",
 155   "set_optab_handler (usneg_optab, $A, CODE_FOR_$(usneg$Q$a2$))",
 156   "set_optab_handler (abs_optab, $A, CODE_FOR_$(abs$P$a2$))",
 157   "set_optab_handler (absv_optab, $A, CODE_FOR_$(abs$F$a2$)),\n\
 158     set_optab_handler (abs_optab, $A, CODE_FOR_$(abs$F$a2$))",
 159   "set_optab_handler (absv_optab, $A, CODE_FOR_$(absv$I$a2$))",
 160   "set_optab_handler (copysign_optab, $A, CODE_FOR_$(copysign$F$a3$))",
 161   "set_optab_handler (signbit_optab, $A, CODE_FOR_$(signbit$F$a2$))",
 162   "set_optab_handler (isinf_optab, $A, CODE_FOR_$(isinf$a2$))",
 163   "set_optab_handler (sqrt_optab, $A, CODE_FOR_$(sqrt$a2$))",
 164   "set_optab_handler (floor_optab, $A, CODE_FOR_$(floor$a2$))",
 165   "set_convert_optab_handler (lfloor_optab, $B, $A, CODE_FOR_$(lfloor$F$a$I$b2$))",
 166   "set_optab_handler (fma_optab, $A, CODE_FOR_$(fma$a4$))",
 167   "set_optab_handler (fms_optab, $A, CODE_FOR_$(fms$a4$))",
 168   "set_optab_handler (fnma_optab, $A, CODE_FOR_$(fnma$a4$))",
 169   "set_optab_handler (fnms_optab, $A, CODE_FOR_$(fnms$a4$))",
 170   "set_optab_handler (ceil_optab, $A, CODE_FOR_$(ceil$a2$))",
 171   "set_convert_optab_handler (lceil_optab, $B, $A, CODE_FOR_$(lceil$F$a$I$b2$))",
 172   "set_optab_handler (round_optab, $A, CODE_FOR_$(round$a2$))",
 173   "set_optab_handler (btrunc_optab, $A, CODE_FOR_$(btrunc$a2$))",
 174   "set_optab_handler (nearbyint_optab, $A, CODE_FOR_$(nearbyint$a2$))",
 175   "set_optab_handler (rint_optab, $A, CODE_FOR_$(rint$a2$))",
 176   "set_convert_optab_handler (lrint_optab, $B, $A, CODE_FOR_$(lrint$F$a$I$b2$))",
 177   "set_convert_optab_handler (lround_optab, $B, $A, CODE_FOR_$(lround$F$a$I$b2$))",
 178   "set_optab_handler (sincos_optab, $A, CODE_FOR_$(sincos$a3$))",
 179   "set_optab_handler (sin_optab, $A, CODE_FOR_$(sin$a2$))",
 180   "set_optab_handler (asin_optab, $A, CODE_FOR_$(asin$a2$))",
 181   "set_optab_handler (cos_optab, $A, CODE_FOR_$(cos$a2$))",
 182   "set_optab_handler (acos_optab, $A, CODE_FOR_$(acos$a2$))",
 183   "set_optab_handler (exp_optab, $A, CODE_FOR_$(exp$a2$))",
 184   "set_optab_handler (exp10_optab, $A, CODE_FOR_$(exp10$a2$))",
 185   "set_optab_handler (exp2_optab, $A, CODE_FOR_$(exp2$a2$))",
 186   "set_optab_handler (expm1_optab, $A, CODE_FOR_$(expm1$a2$))",
 187   "set_optab_handler (ldexp_optab, $A, CODE_FOR_$(ldexp$a3$))",
 188   "set_optab_handler (scalb_optab, $A, CODE_FOR_$(scalb$a3$))",
 189   "set_optab_handler (significand_optab, $A, CODE_FOR_$(significand$a2$))",
 190   "set_optab_handler (logb_optab, $A, CODE_FOR_$(logb$a2$))",
 191   "set_optab_handler (ilogb_optab, $A, CODE_FOR_$(ilogb$a2$))",
 192   "set_optab_handler (log_optab, $A, CODE_FOR_$(log$a2$))",
 193   "set_optab_handler (log10_optab, $A, CODE_FOR_$(log10$a2$))",
 194   "set_optab_handler (log2_optab, $A, CODE_FOR_$(log2$a2$))",
 195   "set_optab_handler (log1p_optab, $A, CODE_FOR_$(log1p$a2$))",
 196   "set_optab_handler (tan_optab, $A, CODE_FOR_$(tan$a2$))",
 197   "set_optab_handler (atan_optab, $A, CODE_FOR_$(atan$a2$))",
 198   "set_optab_handler (strlen_optab, $A, CODE_FOR_$(strlen$a$))",
 199   "set_optab_handler (one_cmpl_optab, $A, CODE_FOR_$(one_cmpl$a2$))",
 200   "set_optab_handler (bswap_optab, $A, CODE_FOR_$(bswap$a2$))",
 201   "set_optab_handler (ffs_optab, $A, CODE_FOR_$(ffs$a2$))",
 202   "set_optab_handler (clz_optab, $A, CODE_FOR_$(clz$a2$))",
 203   "set_optab_handler (ctz_optab, $A, CODE_FOR_$(ctz$a2$))",
 204   "set_optab_handler (clrsb_optab, $A, CODE_FOR_$(clrsb$a2$))",
 205   "set_optab_handler (popcount_optab, $A, CODE_FOR_$(popcount$a2$))",
 206   "set_optab_handler (parity_optab, $A, CODE_FOR_$(parity$a2$))",
 207   "set_optab_handler (mov_optab, $A, CODE_FOR_$(mov$a$))",
 208   "set_optab_handler (movstrict_optab, $A, CODE_FOR_$(movstrict$a$))",
 209   "set_optab_handler (movmisalign_optab, $A, CODE_FOR_$(movmisalign$a$))",
 210   "set_optab_handler (storent_optab, $A, CODE_FOR_$(storent$a$))",
 211   "set_optab_handler (addcc_optab, $A, CODE_FOR_$(add$acc$))",
 212   "set_direct_optab_handler (movcc_optab, $A, CODE_FOR_$(mov$acc$))",
 213   "set_optab_handler (cbranch_optab, $A, CODE_FOR_$(cbranch$a4$))",
 214   "set_optab_handler (cmov_optab, $A, CODE_FOR_$(cmov$a6$))",
 215   "set_optab_handler (cstore_optab, $A, CODE_FOR_$(cstore$a4$))",
 216   "set_optab_handler (ctrap_optab, $A, CODE_FOR_$(ctrap$a4$))",
 217   "set_optab_handler (push_optab, $A, CODE_FOR_$(push$a1$))",
 218   "set_direct_optab_handler (reload_in_optab, $A, CODE_FOR_$(reload_in$a$))",
 219   "set_direct_optab_handler (reload_out_optab, $A, CODE_FOR_$(reload_out$a$))",
 220   "set_direct_optab_handler (movmem_optab, $A, CODE_FOR_$(movmem$a$))",
 221   "set_direct_optab_handler (cmpstr_optab, $A, CODE_FOR_$(cmpstr$a$))",
 222   "set_direct_optab_handler (cmpstrn_optab, $A, CODE_FOR_$(cmpstrn$a$))",
 223   "set_direct_optab_handler (cmpmem_optab, $A, CODE_FOR_$(cmpmem$a$))",
 224   "set_direct_optab_handler (setmem_optab, $A, CODE_FOR_$(setmem$a$))",
 225   "set_direct_optab_handler (sync_add_optab, $A, CODE_FOR_$(sync_add$I$a$))",
 226   "set_direct_optab_handler (sync_sub_optab, $A, CODE_FOR_$(sync_sub$I$a$))",
 227   "set_direct_optab_handler (sync_ior_optab, $A, CODE_FOR_$(sync_ior$I$a$))",
 228   "set_direct_optab_handler (sync_and_optab, $A, CODE_FOR_$(sync_and$I$a$))",
 229   "set_direct_optab_handler (sync_xor_optab, $A, CODE_FOR_$(sync_xor$I$a$))",
 230   "set_direct_optab_handler (sync_nand_optab, $A, CODE_FOR_$(sync_nand$I$a$))",
 231   "set_direct_optab_handler (sync_old_add_optab, $A, CODE_FOR_$(sync_old_add$I$a$))",
 232   "set_direct_optab_handler (sync_old_sub_optab, $A, CODE_FOR_$(sync_old_sub$I$a$))",
 233   "set_direct_optab_handler (sync_old_ior_optab, $A, CODE_FOR_$(sync_old_ior$I$a$))",
 234   "set_direct_optab_handler (sync_old_and_optab, $A, CODE_FOR_$(sync_old_and$I$a$))",
 235   "set_direct_optab_handler (sync_old_xor_optab, $A, CODE_FOR_$(sync_old_xor$I$a$))",
 236   "set_direct_optab_handler (sync_old_nand_optab, $A, CODE_FOR_$(sync_old_nand$I$a$))",
 237   "set_direct_optab_handler (sync_new_add_optab, $A, CODE_FOR_$(sync_new_add$I$a$))",
 238   "set_direct_optab_handler (sync_new_sub_optab, $A, CODE_FOR_$(sync_new_sub$I$a$))",
 239   "set_direct_optab_handler (sync_new_ior_optab, $A, CODE_FOR_$(sync_new_ior$I$a$))",
 240   "set_direct_optab_handler (sync_new_and_optab, $A, CODE_FOR_$(sync_new_and$I$a$))",
 241   "set_direct_optab_handler (sync_new_xor_optab, $A, CODE_FOR_$(sync_new_xor$I$a$))",
 242   "set_direct_optab_handler (sync_new_nand_optab, $A, CODE_FOR_$(sync_new_nand$I$a$))",
 243   "set_direct_optab_handler (sync_compare_and_swap_optab, $A, CODE_FOR_$(sync_compare_and_swap$I$a$))",
 244   "set_direct_optab_handler (sync_lock_test_and_set_optab, $A, CODE_FOR_$(sync_lock_test_and_set$I$a$))",
 245   "set_direct_optab_handler (sync_lock_release_optab, $A, CODE_FOR_$(sync_lock_release$I$a$))",
 246   "set_optab_handler (vec_set_optab, $A, CODE_FOR_$(vec_set$a$))",
 247   "set_optab_handler (vec_extract_optab, $A, CODE_FOR_$(vec_extract$a$))",
 248   "set_optab_handler (vec_extract_even_optab, $A, CODE_FOR_$(vec_extract_even$a$))",
 249   "set_optab_handler (vec_extract_odd_optab, $A, CODE_FOR_$(vec_extract_odd$a$))",
 250   "set_optab_handler (vec_interleave_high_optab, $A, CODE_FOR_$(vec_interleave_high$a$))",
 251   "set_optab_handler (vec_interleave_low_optab, $A, CODE_FOR_$(vec_interleave_low$a$))",
 252   "set_optab_handler (vec_init_optab, $A, CODE_FOR_$(vec_init$a$))",
 253   "set_optab_handler (vec_shl_optab, $A, CODE_FOR_$(vec_shl_$a$))",
 254   "set_optab_handler (vec_shr_optab, $A, CODE_FOR_$(vec_shr_$a$))",
 255   "set_optab_handler (vec_realign_load_optab, $A, CODE_FOR_$(vec_realign_load_$a$))",
 256   "set_direct_optab_handler (vcond_optab, $A, CODE_FOR_$(vcond$a$))",
 257   "set_direct_optab_handler (vcondu_optab, $A, CODE_FOR_$(vcondu$a$))",
 258   "set_optab_handler (ssum_widen_optab, $A, CODE_FOR_$(widen_ssum$I$a3$))",
 259   "set_optab_handler (usum_widen_optab, $A, CODE_FOR_$(widen_usum$I$a3$))",
 260   "set_optab_handler (udot_prod_optab, $A, CODE_FOR_$(udot_prod$I$a$))",
 261   "set_optab_handler (sdot_prod_optab, $A, CODE_FOR_$(sdot_prod$I$a$))",
 262   "set_optab_handler (reduc_smax_optab, $A, CODE_FOR_$(reduc_smax_$a$))",
 263   "set_optab_handler (reduc_umax_optab, $A, CODE_FOR_$(reduc_umax_$a$))",
 264   "set_optab_handler (reduc_smin_optab, $A, CODE_FOR_$(reduc_smin_$a$))",
 265   "set_optab_handler (reduc_umin_optab, $A, CODE_FOR_$(reduc_umin_$a$))",
 266   "set_optab_handler (reduc_splus_optab, $A, CODE_FOR_$(reduc_splus_$a$))" ,
 267   "set_optab_handler (reduc_uplus_optab, $A, CODE_FOR_$(reduc_uplus_$a$))",
 268   "set_optab_handler (vec_widen_umult_hi_optab, $A, CODE_FOR_$(vec_widen_umult_hi_$a$))",
 269   "set_optab_handler (vec_widen_umult_lo_optab, $A, CODE_FOR_$(vec_widen_umult_lo_$a$))",
 270   "set_optab_handler (vec_widen_smult_hi_optab, $A, CODE_FOR_$(vec_widen_smult_hi_$a$))",
 271   "set_optab_handler (vec_widen_smult_lo_optab, $A, CODE_FOR_$(vec_widen_smult_lo_$a$))",
 272   "set_optab_handler (vec_unpacks_hi_optab, $A, CODE_FOR_$(vec_unpacks_hi_$a$))",
 273   "set_optab_handler (vec_unpacks_lo_optab, $A, CODE_FOR_$(vec_unpacks_lo_$a$))",
 274   "set_optab_handler (vec_unpacku_hi_optab, $A, CODE_FOR_$(vec_unpacku_hi_$a$))",
 275   "set_optab_handler (vec_unpacku_lo_optab, $A, CODE_FOR_$(vec_unpacku_lo_$a$))",
 276   "set_optab_handler (vec_unpacks_float_hi_optab, $A, CODE_FOR_$(vec_unpacks_float_hi_$a$))",
 277   "set_optab_handler (vec_unpacks_float_lo_optab, $A, CODE_FOR_$(vec_unpacks_float_lo_$a$))",
 278   "set_optab_handler (vec_unpacku_float_hi_optab, $A, CODE_FOR_$(vec_unpacku_float_hi_$a$))",
 279   "set_optab_handler (vec_unpacku_float_lo_optab, $A, CODE_FOR_$(vec_unpacku_float_lo_$a$))",
 280   "set_optab_handler (vec_pack_trunc_optab, $A, CODE_FOR_$(vec_pack_trunc_$a$))",
 281   "set_optab_handler (vec_pack_ssat_optab, $A, CODE_FOR_$(vec_pack_ssat_$a$))",
 282   "set_optab_handler (vec_pack_usat_optab, $A, CODE_FOR_$(vec_pack_usat_$a$))",
 283   "set_optab_handler (vec_pack_sfix_trunc_optab, $A, CODE_FOR_$(vec_pack_sfix_trunc_$a$))",
 284   "set_optab_handler (vec_pack_ufix_trunc_optab, $A, CODE_FOR_$(vec_pack_ufix_trunc_$a$))"
 285 };
 286
 287 static void gen_insn (rtx);
 288
 289 static void
 290 gen_insn (rtx insn)
 291 {
 292   const char *name = XSTR (insn, 0);
 293   int m1 = 0, m2 = 0, op = 0;
 294   size_t pindex;
 295   int i;
 296   const char *np, *pp, *p, *q;
 297
 298   /* Don't mention instructions whose names are the null string.
 299      They are in the machine description just to be recognized.  */
 300   if (*name == 0)
 301     return;
 302
 303   /* See if NAME matches one of the patterns we have for the optabs we know
 304      about.  */
 305
 306   for (pindex = 0; pindex < ARRAY_SIZE (optabs); pindex++)
 307     {
 308       int force_float = 0, force_int = 0, force_partial_int = 0;
 309       int force_fixed = 0;
 310       int force_wider = 0;
 311       int matches = 1;
 312
 313       for (pp = optabs[pindex]; pp[0] != '$' || pp[1] != '('; pp++)
 314         ;
 315
 316       for (pp += 2, np = name; matches && ! (pp[0] == '$' && pp[1] == ')');
 317            pp++)
 318         {
 319           if (*pp != '$')
 320             {
 321               if (*pp != *np++)
 322                 break;
 323             }
 324           else
 325             switch (*++pp)
 326               {
 327               case 'N':
 328                 force_wider = 1;
 329                 break;
 330               case 'I':
 331                 force_int = 1;
 332                 break;
 333               case 'P':
 334                 force_partial_int = 1;
 335                 break;
 336               case 'F':
 337                 force_float = 1;
 338                 break;
 339               case 'Q':
 340                 force_fixed = 1;
 341                 break;
 342               case 'V':
 343                 break;
 344               case 'c':
 345                 for (op = 0; op < NUM_RTX_CODE; op++)
 346                   {
 347                     for (p = GET_RTX_NAME(op), q = np; *p; p++, q++)
 348                       if (*p != *q)
 349                         break;
 350
 351                     /* We have to be concerned about matching "gt" and
 352                        missing "gtu", e.g., so verify we have reached the
 353                        end of thing we are to match.  */
 354                     if (*p == 0 && *q == 0
 355                         && (GET_RTX_CLASS (op) == RTX_COMPARE
 356                             || GET_RTX_CLASS (op) == RTX_COMM_COMPARE))
 357                       break;
 358                   }
 359
 360                 if (op == NUM_RTX_CODE)
 361                   matches = 0;
 362                 else
 363                   np += strlen (GET_RTX_NAME(op));
 364                 break;
 365               case 'a':
 366               case 'b':
 367                 /* This loop will stop at the first prefix match, so
 368                    look through the modes in reverse order, in case
 369                    there are extra CC modes and CC is a prefix of the
 370                    CC modes (as it should be).  */
 371                 for (i = (MAX_MACHINE_MODE) - 1; i >= 0; i--)
 372                   {
 373                     for (p = GET_MODE_NAME(i), q = np; *p; p++, q++)
 374                       if (TOLOWER (*p) != *q)
 375                         break;
 376
 377                     if (*p == 0
 378                         && (! force_int || mode_class[i] == MODE_INT
 379                             || mode_class[i] == MODE_VECTOR_INT)
 380                         && (! force_partial_int
 381                             || mode_class[i] == MODE_INT
 382                             || mode_class[i] == MODE_PARTIAL_INT
 383                             || mode_class[i] == MODE_VECTOR_INT)
 384                         && (! force_float
 385                             || mode_class[i] == MODE_FLOAT
 386                             || mode_class[i] == MODE_DECIMAL_FLOAT
 387                             || mode_class[i] == MODE_COMPLEX_FLOAT
 388                             || mode_class[i] == MODE_VECTOR_FLOAT)
 389                         && (! force_fixed
 390                             || mode_class[i] == MODE_FRACT
 391                             || mode_class[i] == MODE_UFRACT
 392                             || mode_class[i] == MODE_ACCUM
 393                             || mode_class[i] == MODE_UACCUM
 394                             || mode_class[i] == MODE_VECTOR_FRACT
 395                             || mode_class[i] == MODE_VECTOR_UFRACT
 396                             || mode_class[i] == MODE_VECTOR_ACCUM
 397                             || mode_class[i] == MODE_VECTOR_UACCUM)
 398                         && (! force_wider
 399                             || *pp == 'a'
 400                             || m1 < i))
 401                       break;
 402                   }
 403
 404                 if (i < 0)
 405                   matches = 0;
 406                 else if (*pp == 'a')
 407                   m1 = i, np += strlen (GET_MODE_NAME(i));
 408                 else
 409                   m2 = i, np += strlen (GET_MODE_NAME(i));
 410
 411                 force_int = force_partial_int = force_float = force_fixed = 0;
 412                 break;
 413
 414               default:
 415                 gcc_unreachable ();
 416               }
 417         }
 418
 419       if (matches && pp[0] == '$' && pp[1] == ')'
 420           && *np == 0)
 421         break;
 422     }
 423
 424   if (pindex == ARRAY_SIZE (optabs))
 425     return;
 426
 427   /* We found a match.  If this pattern is only conditionally present,
 428      write out the "if" and two extra blanks.  */
 429
 430   if (*XSTR (insn, 2) != 0)
 431     printf ("  if (HAVE_%s)\n  ", name);
 432
 433   printf ("  ");
 434
 435   /* Now write out the initialization, making all required substitutions.  */
 436   for (pp = optabs[pindex]; *pp; pp++)
 437     {
 438       if (*pp != '$')
 439         putchar (*pp);
 440       else
 441         switch (*++pp)
 442           {
 443           case '(':  case ')':
 444           case 'I':  case 'F':  case 'N':
 445             break;
 446           case 'V':
 447             if (SCALAR_FLOAT_MODE_P (m1))
 448               printf ("v");
 449             break;
 450           case 'a':
 451             for (np = GET_MODE_NAME(m1); *np; np++)
 452               putchar (TOLOWER (*np));
 453             break;
 454           case 'b':
 455             for (np = GET_MODE_NAME(m2); *np; np++)
 456               putchar (TOLOWER (*np));
 457             break;
 458           case 'A':
 459             printf ("%smode", GET_MODE_NAME(m1));
 460             break;
 461           case 'B':
 462             printf ("%smode", GET_MODE_NAME(m2));
 463             break;
 464           case 'c':
 465             printf ("%s", GET_RTX_NAME(op));
 466             break;
 467           case 'C':
 468             for (np = GET_RTX_NAME(op); *np; np++)
 469               putchar (TOUPPER (*np));
 470             break;
 471           }
 472     }
 473
 474   printf (";\n");
 475 }
 476
 477 extern int main (int, char **);
 478
 479 int
 480 main (int argc, char **argv)
 481 {
 482   rtx desc;
 483
 484   progname = "genopinit";
 485
 486   if (!init_rtx_reader_args (argc, argv))
 487     return (FATAL_EXIT_CODE);
 488
 489   printf ("/* Generated automatically by the program `genopinit'\n\
 490 from the machine description file `md'.  */\n\n");
 491
 492   printf ("#include \"config.h\"\n");
 493   printf ("#include \"system.h\"\n");
 494   printf ("#include \"coretypes.h\"\n");
 495   printf ("#include \"tm.h\"\n");
 496   printf ("#include \"rtl.h\"\n");
 497   printf ("#include \"tm_p.h\"\n");
 498   printf ("#include \"flags.h\"\n");
 499   printf ("#include \"insn-config.h\"\n");
 500   printf ("#include \"recog.h\"\n");
 501   printf ("#include \"expr.h\"\n");
 502   printf ("#include \"optabs.h\"\n");
 503   printf ("#include \"reload.h\"\n\n");
 504
 505   printf ("void\ninit_all_optabs (void)\n{\n");
 506
 507   puts ("\
 508 #ifdef FIXUNS_TRUNC_LIKE_FIX_TRUNC\n\
 509   int i, j;\n\
 510 #endif\n");
 511
 512   /* Read the machine description.  */
 513
 514   while (1)
 515     {
 516       int line_no, insn_code_number = 0;
 517
 518       desc = read_md_rtx (&line_no, &insn_code_number);
 519       if (desc == NULL)
 520         break;
 521
 522       if (GET_CODE (desc) == DEFINE_INSN || GET_CODE (desc) == DEFINE_EXPAND)
 523         gen_insn (desc);
 524     }
 525
 526   puts ("\
 527 \n\
 528 #ifdef FIXUNS_TRUNC_LIKE_FIX_TRUNC\n\
 529   /* This flag says the same insns that convert to a signed fixnum\n\
 530      also convert validly to an unsigned one.  */\n\
 531   for (i = 0; i < NUM_MACHINE_MODES; i++)\n\
 532     for (j = 0; j < NUM_MACHINE_MODES; j++)\n\
 533       set_convert_optab_handler\n\
 534         (ufixtrunc_optab, (enum machine_mode) i, (enum machine_mode) j,\n\
 535          convert_optab_handler (sfixtrunc_optab, (enum machine_mode) i,\n\
 536                                                  (enum machine_mode) j));\n\
 537 #endif\n\
 538 }");
 539
 540   fflush (stdout);
 541   return (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);
 542 }