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