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_widen_ushiftl_hi_optab, $A, CODE_FOR_$(vec_widen_ushiftl_hi_$a$))",
 275   "set_optab_handler (vec_widen_ushiftl_lo_optab, $A, CODE_FOR_$(vec_widen_ushiftl_lo_$a$))",
 276   "set_optab_handler (vec_widen_sshiftl_hi_optab, $A, CODE_FOR_$(vec_widen_sshiftl_hi_$a$))",
 277   "set_optab_handler (vec_widen_sshiftl_lo_optab, $A, CODE_FOR_$(vec_widen_sshiftl_lo_$a$))",
 278   "set_optab_handler (vec_unpacks_hi_optab, $A, CODE_FOR_$(vec_unpacks_hi_$a$))",
 279   "set_optab_handler (vec_unpacks_lo_optab, $A, CODE_FOR_$(vec_unpacks_lo_$a$))",
 280   "set_optab_handler (vec_unpacku_hi_optab, $A, CODE_FOR_$(vec_unpacku_hi_$a$))",
 281   "set_optab_handler (vec_unpacku_lo_optab, $A, CODE_FOR_$(vec_unpacku_lo_$a$))",
 282   "set_optab_handler (vec_unpacks_float_hi_optab, $A, CODE_FOR_$(vec_unpacks_float_hi_$a$))",
 283   "set_optab_handler (vec_unpacks_float_lo_optab, $A, CODE_FOR_$(vec_unpacks_float_lo_$a$))",
 284   "set_optab_handler (vec_unpacku_float_hi_optab, $A, CODE_FOR_$(vec_unpacku_float_hi_$a$))",
 285   "set_optab_handler (vec_unpacku_float_lo_optab, $A, CODE_FOR_$(vec_unpacku_float_lo_$a$))",
 286   "set_optab_handler (vec_pack_trunc_optab, $A, CODE_FOR_$(vec_pack_trunc_$a$))",
 287   "set_optab_handler (vec_pack_ssat_optab, $A, CODE_FOR_$(vec_pack_ssat_$a$))",
 288   "set_optab_handler (vec_pack_usat_optab, $A, CODE_FOR_$(vec_pack_usat_$a$))",
 289   "set_optab_handler (vec_pack_sfix_trunc_optab, $A, CODE_FOR_$(vec_pack_sfix_trunc_$a$))",
 290   "set_optab_handler (vec_pack_ufix_trunc_optab, $A, CODE_FOR_$(vec_pack_ufix_trunc_$a$))"
 291 };
 292
 293 static void gen_insn (rtx);
 294
 295 static void
 296 gen_insn (rtx insn)
 297 {
 298   const char *name = XSTR (insn, 0);
 299   int m1 = 0, m2 = 0, op = 0;
 300   size_t pindex;
 301   int i;
 302   const char *np, *pp, *p, *q;
 303
 304   /* Don't mention instructions whose names are the null string.
 305      They are in the machine description just to be recognized.  */
 306   if (*name == 0)
 307     return;
 308
 309   /* See if NAME matches one of the patterns we have for the optabs we know
 310      about.  */
 311
 312   for (pindex = 0; pindex < ARRAY_SIZE (optabs); pindex++)
 313     {
 314       int force_float = 0, force_int = 0, force_partial_int = 0;
 315       int force_fixed = 0;
 316       int force_wider = 0;
 317       int matches = 1;
 318
 319       for (pp = optabs[pindex]; pp[0] != '$' || pp[1] != '('; pp++)
 320         ;
 321
 322       for (pp += 2, np = name; matches && ! (pp[0] == '$' && pp[1] == ')');
 323            pp++)
 324         {
 325           if (*pp != '$')
 326             {
 327               if (*pp != *np++)
 328                 break;
 329             }
 330           else
 331             switch (*++pp)
 332               {
 333               case 'N':
 334                 force_wider = 1;
 335                 break;
 336               case 'I':
 337                 force_int = 1;
 338                 break;
 339               case 'P':
 340                 force_partial_int = 1;
 341                 break;
 342               case 'F':
 343                 force_float = 1;
 344                 break;
 345               case 'Q':
 346                 force_fixed = 1;
 347                 break;
 348               case 'V':
 349                 break;
 350               case 'c':
 351                 for (op = 0; op < NUM_RTX_CODE; op++)
 352                   {
 353                     for (p = GET_RTX_NAME(op), q = np; *p; p++, q++)
 354                       if (*p != *q)
 355                         break;
 356
 357                     /* We have to be concerned about matching "gt" and
 358                        missing "gtu", e.g., so verify we have reached the
 359                        end of thing we are to match.  */
 360                     if (*p == 0 && *q == 0
 361                         && (GET_RTX_CLASS (op) == RTX_COMPARE
 362                             || GET_RTX_CLASS (op) == RTX_COMM_COMPARE))
 363                       break;
 364                   }
 365
 366                 if (op == NUM_RTX_CODE)
 367                   matches = 0;
 368                 else
 369                   np += strlen (GET_RTX_NAME(op));
 370                 break;
 371               case 'a':
 372               case 'b':
 373                 /* This loop will stop at the first prefix match, so
 374                    look through the modes in reverse order, in case
 375                    there are extra CC modes and CC is a prefix of the
 376                    CC modes (as it should be).  */
 377                 for (i = (MAX_MACHINE_MODE) - 1; i >= 0; i--)
 378                   {
 379                     for (p = GET_MODE_NAME(i), q = np; *p; p++, q++)
 380                       if (TOLOWER (*p) != *q)
 381                         break;
 382
 383                     if (*p == 0
 384                         && (! force_int || mode_class[i] == MODE_INT
 385                             || mode_class[i] == MODE_VECTOR_INT)
 386                         && (! force_partial_int
 387                             || mode_class[i] == MODE_INT
 388                             || mode_class[i] == MODE_PARTIAL_INT
 389                             || mode_class[i] == MODE_VECTOR_INT)
 390                         && (! force_float
 391                             || mode_class[i] == MODE_FLOAT
 392                             || mode_class[i] == MODE_DECIMAL_FLOAT
 393                             || mode_class[i] == MODE_COMPLEX_FLOAT
 394                             || mode_class[i] == MODE_VECTOR_FLOAT)
 395                         && (! force_fixed
 396                             || mode_class[i] == MODE_FRACT
 397                             || mode_class[i] == MODE_UFRACT
 398                             || mode_class[i] == MODE_ACCUM
 399                             || mode_class[i] == MODE_UACCUM
 400                             || mode_class[i] == MODE_VECTOR_FRACT
 401                             || mode_class[i] == MODE_VECTOR_UFRACT
 402                             || mode_class[i] == MODE_VECTOR_ACCUM
 403                             || mode_class[i] == MODE_VECTOR_UACCUM)
 404                         && (! force_wider
 405                             || *pp == 'a'
 406                             || m1 < i))
 407                       break;
 408                   }
 409
 410                 if (i < 0)
 411                   matches = 0;
 412                 else if (*pp == 'a')
 413                   m1 = i, np += strlen (GET_MODE_NAME(i));
 414                 else
 415                   m2 = i, np += strlen (GET_MODE_NAME(i));
 416
 417                 force_int = force_partial_int = force_float = force_fixed = 0;
 418                 break;
 419
 420               default:
 421                 gcc_unreachable ();
 422               }
 423         }
 424
 425       if (matches && pp[0] == '$' && pp[1] == ')'
 426           && *np == 0)
 427         break;
 428     }
 429
 430   if (pindex == ARRAY_SIZE (optabs))
 431     return;
 432
 433   /* We found a match.  If this pattern is only conditionally present,
 434      write out the "if" and two extra blanks.  */
 435
 436   if (*XSTR (insn, 2) != 0)
 437     printf ("  if (HAVE_%s)\n  ", name);
 438
 439   printf ("  ");
 440
 441   /* Now write out the initialization, making all required substitutions.  */
 442   for (pp = optabs[pindex]; *pp; pp++)
 443     {
 444       if (*pp != '$')
 445         putchar (*pp);
 446       else
 447         switch (*++pp)
 448           {
 449           case '(':  case ')':
 450           case 'I':  case 'F':  case 'N':
 451             break;
 452           case 'V':
 453             if (SCALAR_FLOAT_MODE_P (m1))
 454               printf ("v");
 455             break;
 456           case 'a':
 457             for (np = GET_MODE_NAME(m1); *np; np++)
 458               putchar (TOLOWER (*np));
 459             break;
 460           case 'b':
 461             for (np = GET_MODE_NAME(m2); *np; np++)
 462               putchar (TOLOWER (*np));
 463             break;
 464           case 'A':
 465             printf ("%smode", GET_MODE_NAME(m1));
 466             break;
 467           case 'B':
 468             printf ("%smode", GET_MODE_NAME(m2));
 469             break;
 470           case 'c':
 471             printf ("%s", GET_RTX_NAME(op));
 472             break;
 473           case 'C':
 474             for (np = GET_RTX_NAME(op); *np; np++)
 475               putchar (TOUPPER (*np));
 476             break;
 477           }
 478     }
 479
 480   printf (";\n");
 481 }
 482
 483 extern int main (int, char **);
 484
 485 int
 486 main (int argc, char **argv)
 487 {
 488   rtx desc;
 489
 490   progname = "genopinit";
 491
 492   if (!init_rtx_reader_args (argc, argv))
 493     return (FATAL_EXIT_CODE);
 494
 495   printf ("/* Generated automatically by the program `genopinit'\n\
 496 from the machine description file `md'.  */\n\n");
 497
 498   printf ("#include \"config.h\"\n");
 499   printf ("#include \"system.h\"\n");
 500   printf ("#include \"coretypes.h\"\n");
 501   printf ("#include \"tm.h\"\n");
 502   printf ("#include \"rtl.h\"\n");
 503   printf ("#include \"tm_p.h\"\n");
 504   printf ("#include \"flags.h\"\n");
 505   printf ("#include \"insn-config.h\"\n");
 506   printf ("#include \"recog.h\"\n");
 507   printf ("#include \"expr.h\"\n");
 508   printf ("#include \"optabs.h\"\n");
 509   printf ("#include \"reload.h\"\n\n");
 510
 511   printf ("void\ninit_all_optabs (void)\n{\n");
 512
 513   puts ("\
 514 #ifdef FIXUNS_TRUNC_LIKE_FIX_TRUNC\n\
 515   int i, j;\n\
 516 #endif\n");
 517
 518   /* Read the machine description.  */
 519
 520   while (1)
 521     {
 522       int line_no, insn_code_number = 0;
 523
 524       desc = read_md_rtx (&line_no, &insn_code_number);
 525       if (desc == NULL)
 526         break;
 527
 528       if (GET_CODE (desc) == DEFINE_INSN || GET_CODE (desc) == DEFINE_EXPAND)
 529         gen_insn (desc);
 530     }
 531
 532   puts ("\
 533 \n\
 534 #ifdef FIXUNS_TRUNC_LIKE_FIX_TRUNC\n\
 535   /* This flag says the same insns that convert to a signed fixnum\n\
 536      also convert validly to an unsigned one.  */\n\
 537   for (i = 0; i < NUM_MACHINE_MODES; i++)\n\
 538     for (j = 0; j < NUM_MACHINE_MODES; j++)\n\
 539       set_convert_optab_handler\n\
 540         (ufixtrunc_optab, (enum machine_mode) i, (enum machine_mode) j,\n\
 541          convert_optab_handler (sfixtrunc_optab, (enum machine_mode) i,\n\
 542                                                  (enum machine_mode) j));\n\
 543 #endif\n\
 544 }");
 545
 546   fflush (stdout);
 547   return (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);
 548 }