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 (vec_perm_optab, $A, CODE_FOR_$(vec_perm$a$))",
 257   "set_direct_optab_handler (vec_perm_const_optab, $A, CODE_FOR_$(vec_perm_const$a$))",
 258   "set_convert_optab_handler (vcond_optab, $A, $B, CODE_FOR_$(vcond$a$b$))",
 259   "set_convert_optab_handler (vcondu_optab, $A, $B, CODE_FOR_$(vcondu$a$b$))",
 260   "set_optab_handler (ssum_widen_optab, $A, CODE_FOR_$(widen_ssum$I$a3$))",
 261   "set_optab_handler (usum_widen_optab, $A, CODE_FOR_$(widen_usum$I$a3$))",
 262   "set_optab_handler (udot_prod_optab, $A, CODE_FOR_$(udot_prod$I$a$))",
 263   "set_optab_handler (sdot_prod_optab, $A, CODE_FOR_$(sdot_prod$I$a$))",
 264   "set_optab_handler (reduc_smax_optab, $A, CODE_FOR_$(reduc_smax_$a$))",
 265   "set_optab_handler (reduc_umax_optab, $A, CODE_FOR_$(reduc_umax_$a$))",
 266   "set_optab_handler (reduc_smin_optab, $A, CODE_FOR_$(reduc_smin_$a$))",
 267   "set_optab_handler (reduc_umin_optab, $A, CODE_FOR_$(reduc_umin_$a$))",
 268   "set_optab_handler (reduc_splus_optab, $A, CODE_FOR_$(reduc_splus_$a$))" ,
 269   "set_optab_handler (reduc_uplus_optab, $A, CODE_FOR_$(reduc_uplus_$a$))",
 270   "set_optab_handler (vec_widen_umult_hi_optab, $A, CODE_FOR_$(vec_widen_umult_hi_$a$))",
 271   "set_optab_handler (vec_widen_umult_lo_optab, $A, CODE_FOR_$(vec_widen_umult_lo_$a$))",
 272   "set_optab_handler (vec_widen_smult_hi_optab, $A, CODE_FOR_$(vec_widen_smult_hi_$a$))",
 273   "set_optab_handler (vec_widen_smult_lo_optab, $A, CODE_FOR_$(vec_widen_smult_lo_$a$))",
 274   "set_optab_handler (vec_unpacks_hi_optab, $A, CODE_FOR_$(vec_unpacks_hi_$a$))",
 275   "set_optab_handler (vec_unpacks_lo_optab, $A, CODE_FOR_$(vec_unpacks_lo_$a$))",
 276   "set_optab_handler (vec_unpacku_hi_optab, $A, CODE_FOR_$(vec_unpacku_hi_$a$))",
 277   "set_optab_handler (vec_unpacku_lo_optab, $A, CODE_FOR_$(vec_unpacku_lo_$a$))",
 278   "set_optab_handler (vec_unpacks_float_hi_optab, $A, CODE_FOR_$(vec_unpacks_float_hi_$a$))",
 279   "set_optab_handler (vec_unpacks_float_lo_optab, $A, CODE_FOR_$(vec_unpacks_float_lo_$a$))",
 280   "set_optab_handler (vec_unpacku_float_hi_optab, $A, CODE_FOR_$(vec_unpacku_float_hi_$a$))",
 281   "set_optab_handler (vec_unpacku_float_lo_optab, $A, CODE_FOR_$(vec_unpacku_float_lo_$a$))",
 282   "set_optab_handler (vec_pack_trunc_optab, $A, CODE_FOR_$(vec_pack_trunc_$a$))",
 283   "set_optab_handler (vec_pack_ssat_optab, $A, CODE_FOR_$(vec_pack_ssat_$a$))",
 284   "set_optab_handler (vec_pack_usat_optab, $A, CODE_FOR_$(vec_pack_usat_$a$))",
 285   "set_optab_handler (vec_pack_sfix_trunc_optab, $A, CODE_FOR_$(vec_pack_sfix_trunc_$a$))",
 286   "set_optab_handler (vec_pack_ufix_trunc_optab, $A, CODE_FOR_$(vec_pack_ufix_trunc_$a$))"
 287 };
 288
 289 static void gen_insn (rtx);
 290
 291 static void
 292 gen_insn (rtx insn)
 293 {
 294   const char *name = XSTR (insn, 0);
 295   int m1 = 0, m2 = 0, op = 0;
 296   size_t pindex;
 297   int i;
 298   const char *np, *pp, *p, *q;
 299
 300   /* Don't mention instructions whose names are the null string.
 301      They are in the machine description just to be recognized.  */
 302   if (*name == 0)
 303     return;
 304
 305   /* See if NAME matches one of the patterns we have for the optabs we know
 306      about.  */
 307
 308   for (pindex = 0; pindex < ARRAY_SIZE (optabs); pindex++)
 309     {
 310       int force_float = 0, force_int = 0, force_partial_int = 0;
 311       int force_fixed = 0;
 312       int force_wider = 0;
 313       int matches = 1;
 314
 315       for (pp = optabs[pindex]; pp[0] != '$' || pp[1] != '('; pp++)
 316         ;
 317
 318       for (pp += 2, np = name; matches && ! (pp[0] == '$' && pp[1] == ')');
 319            pp++)
 320         {
 321           if (*pp != '$')
 322             {
 323               if (*pp != *np++)
 324                 break;
 325             }
 326           else
 327             switch (*++pp)
 328               {
 329               case 'N':
 330                 force_wider = 1;
 331                 break;
 332               case 'I':
 333                 force_int = 1;
 334                 break;
 335               case 'P':
 336                 force_partial_int = 1;
 337                 break;
 338               case 'F':
 339                 force_float = 1;
 340                 break;
 341               case 'Q':
 342                 force_fixed = 1;
 343                 break;
 344               case 'V':
 345                 break;
 346               case 'c':
 347                 for (op = 0; op < NUM_RTX_CODE; op++)
 348                   {
 349                     for (p = GET_RTX_NAME(op), q = np; *p; p++, q++)
 350                       if (*p != *q)
 351                         break;
 352
 353                     /* We have to be concerned about matching "gt" and
 354                        missing "gtu", e.g., so verify we have reached the
 355                        end of thing we are to match.  */
 356                     if (*p == 0 && *q == 0
 357                         && (GET_RTX_CLASS (op) == RTX_COMPARE
 358                             || GET_RTX_CLASS (op) == RTX_COMM_COMPARE))
 359                       break;
 360                   }
 361
 362                 if (op == NUM_RTX_CODE)
 363                   matches = 0;
 364                 else
 365                   np += strlen (GET_RTX_NAME(op));
 366                 break;
 367               case 'a':
 368               case 'b':
 369                 /* This loop will stop at the first prefix match, so
 370                    look through the modes in reverse order, in case
 371                    there are extra CC modes and CC is a prefix of the
 372                    CC modes (as it should be).  */
 373                 for (i = (MAX_MACHINE_MODE) - 1; i >= 0; i--)
 374                   {
 375                     for (p = GET_MODE_NAME(i), q = np; *p; p++, q++)
 376                       if (TOLOWER (*p) != *q)
 377                         break;
 378
 379                     if (*p == 0
 380                         && (! force_int || mode_class[i] == MODE_INT
 381                             || mode_class[i] == MODE_VECTOR_INT)
 382                         && (! force_partial_int
 383                             || mode_class[i] == MODE_INT
 384                             || mode_class[i] == MODE_PARTIAL_INT
 385                             || mode_class[i] == MODE_VECTOR_INT)
 386                         && (! force_float
 387                             || mode_class[i] == MODE_FLOAT
 388                             || mode_class[i] == MODE_DECIMAL_FLOAT
 389                             || mode_class[i] == MODE_COMPLEX_FLOAT
 390                             || mode_class[i] == MODE_VECTOR_FLOAT)
 391                         && (! force_fixed
 392                             || mode_class[i] == MODE_FRACT
 393                             || mode_class[i] == MODE_UFRACT
 394                             || mode_class[i] == MODE_ACCUM
 395                             || mode_class[i] == MODE_UACCUM
 396                             || mode_class[i] == MODE_VECTOR_FRACT
 397                             || mode_class[i] == MODE_VECTOR_UFRACT
 398                             || mode_class[i] == MODE_VECTOR_ACCUM
 399                             || mode_class[i] == MODE_VECTOR_UACCUM)
 400                         && (! force_wider
 401                             || *pp == 'a'
 402                             || m1 < i))
 403                       break;
 404                   }
 405
 406                 if (i < 0)
 407                   matches = 0;
 408                 else if (*pp == 'a')
 409                   m1 = i, np += strlen (GET_MODE_NAME(i));
 410                 else
 411                   m2 = i, np += strlen (GET_MODE_NAME(i));
 412
 413                 force_int = force_partial_int = force_float = force_fixed = 0;
 414                 break;
 415
 416               default:
 417                 gcc_unreachable ();
 418               }
 419         }
 420
 421       if (matches && pp[0] == '$' && pp[1] == ')'
 422           && *np == 0)
 423         break;
 424     }
 425
 426   if (pindex == ARRAY_SIZE (optabs))
 427     return;
 428
 429   /* We found a match.  If this pattern is only conditionally present,
 430      write out the "if" and two extra blanks.  */
 431
 432   if (*XSTR (insn, 2) != 0)
 433     printf ("  if (HAVE_%s)\n  ", name);
 434
 435   printf ("  ");
 436
 437   /* Now write out the initialization, making all required substitutions.  */
 438   for (pp = optabs[pindex]; *pp; pp++)
 439     {
 440       if (*pp != '$')
 441         putchar (*pp);
 442       else
 443         switch (*++pp)
 444           {
 445           case '(':  case ')':
 446           case 'I':  case 'F':  case 'N':
 447             break;
 448           case 'V':
 449             if (SCALAR_FLOAT_MODE_P (m1))
 450               printf ("v");
 451             break;
 452           case 'a':
 453             for (np = GET_MODE_NAME(m1); *np; np++)
 454               putchar (TOLOWER (*np));
 455             break;
 456           case 'b':
 457             for (np = GET_MODE_NAME(m2); *np; np++)
 458               putchar (TOLOWER (*np));
 459             break;
 460           case 'A':
 461             printf ("%smode", GET_MODE_NAME(m1));
 462             break;
 463           case 'B':
 464             printf ("%smode", GET_MODE_NAME(m2));
 465             break;
 466           case 'c':
 467             printf ("%s", GET_RTX_NAME(op));
 468             break;
 469           case 'C':
 470             for (np = GET_RTX_NAME(op); *np; np++)
 471               putchar (TOUPPER (*np));
 472             break;
 473           }
 474     }
 475
 476   printf (";\n");
 477 }
 478
 479 extern int main (int, char **);
 480
 481 int
 482 main (int argc, char **argv)
 483 {
 484   rtx desc;
 485
 486   progname = "genopinit";
 487
 488   if (!init_rtx_reader_args (argc, argv))
 489     return (FATAL_EXIT_CODE);
 490
 491   printf ("/* Generated automatically by the program `genopinit'\n\
 492 from the machine description file `md'.  */\n\n");
 493
 494   printf ("#include \"config.h\"\n");
 495   printf ("#include \"system.h\"\n");
 496   printf ("#include \"coretypes.h\"\n");
 497   printf ("#include \"tm.h\"\n");
 498   printf ("#include \"rtl.h\"\n");
 499   printf ("#include \"tm_p.h\"\n");
 500   printf ("#include \"flags.h\"\n");
 501   printf ("#include \"insn-config.h\"\n");
 502   printf ("#include \"recog.h\"\n");
 503   printf ("#include \"expr.h\"\n");
 504   printf ("#include \"optabs.h\"\n");
 505   printf ("#include \"reload.h\"\n\n");
 506
 507   printf ("void\ninit_all_optabs (void)\n{\n");
 508
 509   puts ("\
 510 #ifdef FIXUNS_TRUNC_LIKE_FIX_TRUNC\n\
 511   int i, j;\n\
 512 #endif\n");
 513
 514   /* Read the machine description.  */
 515
 516   while (1)
 517     {
 518       int line_no, insn_code_number = 0;
 519
 520       desc = read_md_rtx (&line_no, &insn_code_number);
 521       if (desc == NULL)
 522         break;
 523
 524       if (GET_CODE (desc) == DEFINE_INSN || GET_CODE (desc) == DEFINE_EXPAND)
 525         gen_insn (desc);
 526     }
 527
 528   puts ("\
 529 \n\
 530 #ifdef FIXUNS_TRUNC_LIKE_FIX_TRUNC\n\
 531   /* This flag says the same insns that convert to a signed fixnum\n\
 532      also convert validly to an unsigned one.  */\n\
 533   for (i = 0; i < NUM_MACHINE_MODES; i++)\n\
 534     for (j = 0; j < NUM_MACHINE_MODES; j++)\n\
 535       set_convert_optab_handler\n\
 536         (ufixtrunc_optab, (enum machine_mode) i, (enum machine_mode) j,\n\
 537          convert_optab_handler (sfixtrunc_optab, (enum machine_mode) i,\n\
 538                                                  (enum machine_mode) j));\n\
 539 #endif\n\
 540 }");
 541
 542   fflush (stdout);
 543   return (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);
 544 }