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 Free Software Foundation, Inc.
   4
   5 This file is part of GCC.
   6
   7 GCC is free software; you can redistribute it and/or modify it under
   8 the terms of the GNU General Public License as published by the Free
   9 Software Foundation; either version 3, or (at your option) any later
  10 version.
  11
  12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  15 for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GCC; see the file COPYING3.  If not see
  19 <http://www.gnu.org/licenses/>.  */
  20
  21
  22 #include "bconfig.h"
  23 #include "system.h"
  24 #include "coretypes.h"
  25 #include "tm.h"
  26 #include "rtl.h"
  27 #include "errors.h"
  28 #include "gensupport.h"
  29
  30
  31 /* Many parts of GCC use arrays that are indexed by machine mode and
  32    contain the insn codes for pattern in the MD file that perform a given
  33    operation on operands of that mode.
  34
  35    These patterns are present in the MD file with names that contain
  36    the mode(s) used and the name of the operation.  This program
  37    writes a function `init_all_optabs' that initializes the optabs with
  38    all the insn codes of the relevant patterns present in the MD file.
  39
  40    This array contains a list of optabs that need to be initialized.  Within
  41    each string, the name of the pattern to be matched against is delimited
  42    with $( and $).  In the string, $a and $b are used to match a short mode
  43    name (the part of the mode name not including `mode' and converted to
  44    lower-case).  When writing out the initializer, the entire string is
  45    used.  $A and $B are replaced with the full name of the mode; $a and $b
  46    are replaced with the short form of the name, as above.
  47
  48    If $N is present in the pattern, it means the two modes must be consecutive
  49    widths in the same mode class (e.g, QImode and HImode).  $I means that
  50    only full integer modes should be considered for the next mode, and $F
  51    means that only float modes should be considered.
  52    $P means that both full and partial integer modes should be considered.
  53    $Q means that only fixed-point modes should be considered.
  54
  55    $V means to emit 'v' if the first mode is a MODE_FLOAT mode.
  56
  57    For some optabs, we store the operation by RTL codes.  These are only
  58    used for comparisons.  In that case, $c and $C are the lower-case and
  59    upper-case forms of the comparison, respectively.  */
  60
  61 static const char * const optabs[] =
  62 { "convert_optab_handler (sext_optab, $B, $A)->insn_code = CODE_FOR_$(extend$a$b2$)",
  63   "convert_optab_handler (zext_optab, $B, $A)->insn_code = CODE_FOR_$(zero_extend$a$b2$)",
  64   "convert_optab_handler (sfix_optab, $B, $A)->insn_code = CODE_FOR_$(fix$F$a$I$b2$)",
  65   "convert_optab_handler (ufix_optab, $B, $A)->insn_code = CODE_FOR_$(fixuns$F$a$b2$)",
  66   "convert_optab_handler (sfixtrunc_optab, $B, $A)->insn_code = CODE_FOR_$(fix_trunc$F$a$I$b2$)",
  67   "convert_optab_handler (ufixtrunc_optab, $B, $A)->insn_code = CODE_FOR_$(fixuns_trunc$F$a$I$b2$)",
  68   "convert_optab_handler (sfloat_optab, $B, $A)->insn_code = CODE_FOR_$(float$I$a$F$b2$)",
  69   "convert_optab_handler (ufloat_optab, $B, $A)->insn_code = CODE_FOR_$(floatuns$I$a$F$b2$)",
  70   "convert_optab_handler (trunc_optab, $B, $A)->insn_code = CODE_FOR_$(trunc$a$b2$)",
  71   "convert_optab_handler (fract_optab, $B, $A)->insn_code = CODE_FOR_$(fract$a$b2$)",
  72   "convert_optab_handler (fractuns_optab, $B, $A)->insn_code = CODE_FOR_$(fractuns$I$a$Q$b2$)",
  73   "convert_optab_handler (fractuns_optab, $B, $A)->insn_code = CODE_FOR_$(fractuns$Q$a$I$b2$)",
  74   "convert_optab_handler (satfract_optab, $B, $A)->insn_code = CODE_FOR_$(satfract$a$Q$b2$)",
  75   "convert_optab_handler (satfractuns_optab, $B, $A)->insn_code = CODE_FOR_$(satfractuns$I$a$Q$b2$)",
  76   "optab_handler (add_optab, $A)->insn_code = CODE_FOR_$(add$P$a3$)",
  77   "optab_handler (addv_optab, $A)->insn_code =\n\
  78     optab_handler (add_optab, $A)->insn_code = CODE_FOR_$(add$F$a3$)",
  79   "optab_handler (addv_optab, $A)->insn_code = CODE_FOR_$(addv$I$a3$)",
  80   "optab_handler (add_optab, $A)->insn_code = CODE_FOR_$(add$Q$a3$)",
  81   "optab_handler (ssadd_optab, $A)->insn_code = CODE_FOR_$(ssadd$Q$a3$)",
  82   "optab_handler (usadd_optab, $A)->insn_code = CODE_FOR_$(usadd$Q$a3$)",
  83   "optab_handler (sub_optab, $A)->insn_code = CODE_FOR_$(sub$P$a3$)",
  84   "optab_handler (subv_optab, $A)->insn_code =\n\
  85     optab_handler (sub_optab, $A)->insn_code = CODE_FOR_$(sub$F$a3$)",
  86   "optab_handler (subv_optab, $A)->insn_code = CODE_FOR_$(subv$I$a3$)",
  87   "optab_handler (sub_optab, $A)->insn_code = CODE_FOR_$(sub$Q$a3$)",
  88   "optab_handler (sssub_optab, $A)->insn_code = CODE_FOR_$(sssub$Q$a3$)",
  89   "optab_handler (ussub_optab, $A)->insn_code = CODE_FOR_$(ussub$Q$a3$)",
  90   "optab_handler (smul_optab, $A)->insn_code = CODE_FOR_$(mul$Q$a3$)",
  91   "optab_handler (ssmul_optab, $A)->insn_code = CODE_FOR_$(ssmul$Q$a3$)",
  92   "optab_handler (usmul_optab, $A)->insn_code = CODE_FOR_$(usmul$Q$a3$)",
  93   "optab_handler (smul_optab, $A)->insn_code = CODE_FOR_$(mul$P$a3$)",
  94   "optab_handler (smulv_optab, $A)->insn_code =\n\
  95     optab_handler (smul_optab, $A)->insn_code = CODE_FOR_$(mul$F$a3$)",
  96   "optab_handler (smulv_optab, $A)->insn_code = CODE_FOR_$(mulv$I$a3$)",
  97   "optab_handler (umul_highpart_optab, $A)->insn_code = CODE_FOR_$(umul$a3_highpart$)",
  98   "optab_handler (smul_highpart_optab, $A)->insn_code = CODE_FOR_$(smul$a3_highpart$)",
  99   "optab_handler (smul_widen_optab, $B)->insn_code = CODE_FOR_$(mul$a$b3$)$N",
 100   "optab_handler (umul_widen_optab, $B)->insn_code = CODE_FOR_$(umul$a$b3$)$N",
 101   "optab_handler (usmul_widen_optab, $B)->insn_code = CODE_FOR_$(usmul$a$b3$)$N",
 102   "optab_handler (smadd_widen_optab, $B)->insn_code = CODE_FOR_$(madd$a$b4$)$N",
 103   "optab_handler (umadd_widen_optab, $B)->insn_code = CODE_FOR_$(umadd$a$b4$)$N",
 104   "optab_handler (ssmadd_widen_optab, $B)->insn_code = CODE_FOR_$(ssmadd$a$b4$)$N",
 105   "optab_handler (usmadd_widen_optab, $B)->insn_code = CODE_FOR_$(usmadd$a$b4$)$N",
 106   "optab_handler (smsub_widen_optab, $B)->insn_code = CODE_FOR_$(msub$a$b4$)$N",
 107   "optab_handler (umsub_widen_optab, $B)->insn_code = CODE_FOR_$(umsub$a$b4$)$N",
 108   "optab_handler (ssmsub_widen_optab, $B)->insn_code = CODE_FOR_$(ssmsub$a$b4$)$N",
 109   "optab_handler (usmsub_widen_optab, $B)->insn_code = CODE_FOR_$(usmsub$a$b4$)$N",
 110   "optab_handler (sdiv_optab, $A)->insn_code = CODE_FOR_$(div$a3$)",
 111   "optab_handler (ssdiv_optab, $A)->insn_code = CODE_FOR_$(ssdiv$Q$a3$)",
 112   "optab_handler (sdivv_optab, $A)->insn_code = CODE_FOR_$(div$V$I$a3$)",
 113   "optab_handler (udiv_optab, $A)->insn_code = CODE_FOR_$(udiv$I$a3$)",
 114   "optab_handler (udiv_optab, $A)->insn_code = CODE_FOR_$(udiv$Q$a3$)",
 115   "optab_handler (usdiv_optab, $A)->insn_code = CODE_FOR_$(usdiv$Q$a3$)",
 116   "optab_handler (sdivmod_optab, $A)->insn_code = CODE_FOR_$(divmod$a4$)",
 117   "optab_handler (udivmod_optab, $A)->insn_code = CODE_FOR_$(udivmod$a4$)",
 118   "optab_handler (smod_optab, $A)->insn_code = CODE_FOR_$(mod$a3$)",
 119   "optab_handler (umod_optab, $A)->insn_code = CODE_FOR_$(umod$a3$)",
 120   "optab_handler (fmod_optab, $A)->insn_code = CODE_FOR_$(fmod$a3$)",
 121   "optab_handler (remainder_optab, $A)->insn_code = CODE_FOR_$(remainder$a3$)",
 122   "optab_handler (ftrunc_optab, $A)->insn_code = CODE_FOR_$(ftrunc$F$a2$)",
 123   "optab_handler (and_optab, $A)->insn_code = CODE_FOR_$(and$a3$)",
 124   "optab_handler (ior_optab, $A)->insn_code = CODE_FOR_$(ior$a3$)",
 125   "optab_handler (xor_optab, $A)->insn_code = CODE_FOR_$(xor$a3$)",
 126   "optab_handler (ashl_optab, $A)->insn_code = CODE_FOR_$(ashl$a3$)",
 127   "optab_handler (ssashl_optab, $A)->insn_code = CODE_FOR_$(ssashl$Q$a3$)",
 128   "optab_handler (usashl_optab, $A)->insn_code = CODE_FOR_$(usashl$Q$a3$)",
 129   "optab_handler (ashr_optab, $A)->insn_code = CODE_FOR_$(ashr$a3$)",
 130   "optab_handler (lshr_optab, $A)->insn_code = CODE_FOR_$(lshr$a3$)",
 131   "optab_handler (rotl_optab, $A)->insn_code = CODE_FOR_$(rotl$a3$)",
 132   "optab_handler (rotr_optab, $A)->insn_code = CODE_FOR_$(rotr$a3$)",
 133   "optab_handler (vashr_optab, $A)->insn_code = CODE_FOR_$(vashr$a3$)",
 134   "optab_handler (vlshr_optab, $A)->insn_code = CODE_FOR_$(vlshr$a3$)",
 135   "optab_handler (vashl_optab, $A)->insn_code = CODE_FOR_$(vashl$a3$)",
 136   "optab_handler (vrotl_optab, $A)->insn_code = CODE_FOR_$(vrotl$a3$)",
 137   "optab_handler (vrotr_optab, $A)->insn_code = CODE_FOR_$(vrotr$a3$)",
 138   "optab_handler (smin_optab, $A)->insn_code = CODE_FOR_$(smin$a3$)",
 139   "optab_handler (smax_optab, $A)->insn_code = CODE_FOR_$(smax$a3$)",
 140   "optab_handler (umin_optab, $A)->insn_code = CODE_FOR_$(umin$I$a3$)",
 141   "optab_handler (umax_optab, $A)->insn_code = CODE_FOR_$(umax$I$a3$)",
 142   "optab_handler (pow_optab, $A)->insn_code = CODE_FOR_$(pow$a3$)",
 143   "optab_handler (atan2_optab, $A)->insn_code = CODE_FOR_$(atan2$a3$)",
 144   "optab_handler (neg_optab, $A)->insn_code = CODE_FOR_$(neg$P$a2$)",
 145   "optab_handler (negv_optab, $A)->insn_code =\n\
 146     optab_handler (neg_optab, $A)->insn_code = CODE_FOR_$(neg$F$a2$)",
 147   "optab_handler (negv_optab, $A)->insn_code = CODE_FOR_$(negv$I$a2$)",
 148   "optab_handler (neg_optab, $A)->insn_code = CODE_FOR_$(neg$Q$a2$)",
 149   "optab_handler (ssneg_optab, $A)->insn_code = CODE_FOR_$(ssneg$Q$a2$)",
 150   "optab_handler (usneg_optab, $A)->insn_code = CODE_FOR_$(usneg$Q$a2$)",
 151   "optab_handler (abs_optab, $A)->insn_code = CODE_FOR_$(abs$P$a2$)",
 152   "optab_handler (absv_optab, $A)->insn_code =\n\
 153     optab_handler (abs_optab, $A)->insn_code = CODE_FOR_$(abs$F$a2$)",
 154   "optab_handler (absv_optab, $A)->insn_code = CODE_FOR_$(absv$I$a2$)",
 155   "optab_handler (copysign_optab, $A)->insn_code = CODE_FOR_$(copysign$F$a3$)",
 156   "optab_handler (signbit_optab, $A)->insn_code = CODE_FOR_$(signbit$F$a2$)",
 157   "optab_handler (isinf_optab, $A)->insn_code = CODE_FOR_$(isinf$a2$)",
 158   "optab_handler (sqrt_optab, $A)->insn_code = CODE_FOR_$(sqrt$a2$)",
 159   "optab_handler (floor_optab, $A)->insn_code = CODE_FOR_$(floor$a2$)",
 160   "convert_optab_handler (lfloor_optab, $B, $A)->insn_code = CODE_FOR_$(lfloor$F$a$I$b2$)",
 161   "optab_handler (ceil_optab, $A)->insn_code = CODE_FOR_$(ceil$a2$)",
 162   "convert_optab_handler (lceil_optab, $B, $A)->insn_code = CODE_FOR_$(lceil$F$a$I$b2$)",
 163   "optab_handler (round_optab, $A)->insn_code = CODE_FOR_$(round$a2$)",
 164   "optab_handler (btrunc_optab, $A)->insn_code = CODE_FOR_$(btrunc$a2$)",
 165   "optab_handler (nearbyint_optab, $A)->insn_code = CODE_FOR_$(nearbyint$a2$)",
 166   "optab_handler (rint_optab, $A)->insn_code = CODE_FOR_$(rint$a2$)",
 167   "convert_optab_handler (lrint_optab, $B, $A)->insn_code = CODE_FOR_$(lrint$F$a$I$b2$)",
 168   "convert_optab_handler (lround_optab, $B, $A)->insn_code = CODE_FOR_$(lround$F$a$I$b2$)",
 169   "optab_handler (sincos_optab, $A)->insn_code = CODE_FOR_$(sincos$a3$)",
 170   "optab_handler (sin_optab, $A)->insn_code = CODE_FOR_$(sin$a2$)",
 171   "optab_handler (asin_optab, $A)->insn_code = CODE_FOR_$(asin$a2$)",
 172   "optab_handler (cos_optab, $A)->insn_code = CODE_FOR_$(cos$a2$)",
 173   "optab_handler (acos_optab, $A)->insn_code = CODE_FOR_$(acos$a2$)",
 174   "optab_handler (exp_optab, $A)->insn_code = CODE_FOR_$(exp$a2$)",
 175   "optab_handler (exp10_optab, $A)->insn_code = CODE_FOR_$(exp10$a2$)",
 176   "optab_handler (exp2_optab, $A)->insn_code = CODE_FOR_$(exp2$a2$)",
 177   "optab_handler (expm1_optab, $A)->insn_code = CODE_FOR_$(expm1$a2$)",
 178   "optab_handler (ldexp_optab, $A)->insn_code = CODE_FOR_$(ldexp$a3$)",
 179   "optab_handler (scalb_optab, $A)->insn_code = CODE_FOR_$(scalb$a3$)",
 180   "optab_handler (logb_optab, $A)->insn_code = CODE_FOR_$(logb$a2$)",
 181   "optab_handler (ilogb_optab, $A)->insn_code = CODE_FOR_$(ilogb$a2$)",
 182   "optab_handler (log_optab, $A)->insn_code = CODE_FOR_$(log$a2$)",
 183   "optab_handler (log10_optab, $A)->insn_code = CODE_FOR_$(log10$a2$)",
 184   "optab_handler (log2_optab, $A)->insn_code = CODE_FOR_$(log2$a2$)",
 185   "optab_handler (log1p_optab, $A)->insn_code = CODE_FOR_$(log1p$a2$)",
 186   "optab_handler (tan_optab, $A)->insn_code = CODE_FOR_$(tan$a2$)",
 187   "optab_handler (atan_optab, $A)->insn_code = CODE_FOR_$(atan$a2$)",
 188   "optab_handler (strlen_optab, $A)->insn_code = CODE_FOR_$(strlen$a$)",
 189   "optab_handler (one_cmpl_optab, $A)->insn_code = CODE_FOR_$(one_cmpl$a2$)",
 190   "optab_handler (bswap_optab, $A)->insn_code = CODE_FOR_$(bswap$a2$)",
 191   "optab_handler (ffs_optab, $A)->insn_code = CODE_FOR_$(ffs$a2$)",
 192   "optab_handler (clz_optab, $A)->insn_code = CODE_FOR_$(clz$a2$)",
 193   "optab_handler (ctz_optab, $A)->insn_code = CODE_FOR_$(ctz$a2$)",
 194   "optab_handler (popcount_optab, $A)->insn_code = CODE_FOR_$(popcount$a2$)",
 195   "optab_handler (parity_optab, $A)->insn_code = CODE_FOR_$(parity$a2$)",
 196   "optab_handler (mov_optab, $A)->insn_code = CODE_FOR_$(mov$a$)",
 197   "optab_handler (movstrict_optab, $A)->insn_code = CODE_FOR_$(movstrict$a$)",
 198   "optab_handler (movmisalign_optab, $A)->insn_code = CODE_FOR_$(movmisalign$a$)",
 199   "optab_handler (storent_optab, $A)->insn_code = CODE_FOR_$(storent$a$)",
 200   "optab_handler (cmp_optab, $A)->insn_code = CODE_FOR_$(cmp$a$)",
 201   "optab_handler (tst_optab, $A)->insn_code = CODE_FOR_$(tst$a$)",
 202   "optab_handler (addcc_optab, $A)->insn_code = CODE_FOR_$(add$acc$)",
 203   "bcc_gen_fctn[$C] = gen_$(b$c$)",
 204   "setcc_gen_code[$C] = CODE_FOR_$(s$c$)",
 205   "movcc_gen_code[$A] = CODE_FOR_$(mov$acc$)",
 206   "optab_handler (cbranch_optab, $A)->insn_code = CODE_FOR_$(cbranch$a4$)",
 207   "optab_handler (cmov_optab, $A)->insn_code = CODE_FOR_$(cmov$a6$)",
 208   "optab_handler (cstore_optab, $A)->insn_code = CODE_FOR_$(cstore$a4$)",
 209   "optab_handler (push_optab, $A)->insn_code = CODE_FOR_$(push$a1$)",
 210   "reload_in_optab[$A] = CODE_FOR_$(reload_in$a$)",
 211   "reload_out_optab[$A] = CODE_FOR_$(reload_out$a$)",
 212   "movmem_optab[$A] = CODE_FOR_$(movmem$a$)",
 213   "cmpstr_optab[$A] = CODE_FOR_$(cmpstr$a$)",
 214   "cmpstrn_optab[$A] = CODE_FOR_$(cmpstrn$a$)",
 215   "cmpmem_optab[$A] = CODE_FOR_$(cmpmem$a$)",
 216   "setmem_optab[$A] = CODE_FOR_$(setmem$a$)",
 217   "sync_add_optab[$A] = CODE_FOR_$(sync_add$I$a$)",
 218   "sync_sub_optab[$A] = CODE_FOR_$(sync_sub$I$a$)",
 219   "sync_ior_optab[$A] = CODE_FOR_$(sync_ior$I$a$)",
 220   "sync_and_optab[$A] = CODE_FOR_$(sync_and$I$a$)",
 221   "sync_xor_optab[$A] = CODE_FOR_$(sync_xor$I$a$)",
 222   "sync_nand_optab[$A] = CODE_FOR_$(sync_nand$I$a$)",
 223   "sync_old_add_optab[$A] = CODE_FOR_$(sync_old_add$I$a$)",
 224   "sync_old_sub_optab[$A] = CODE_FOR_$(sync_old_sub$I$a$)",
 225   "sync_old_ior_optab[$A] = CODE_FOR_$(sync_old_ior$I$a$)",
 226   "sync_old_and_optab[$A] = CODE_FOR_$(sync_old_and$I$a$)",
 227   "sync_old_xor_optab[$A] = CODE_FOR_$(sync_old_xor$I$a$)",
 228   "sync_old_nand_optab[$A] = CODE_FOR_$(sync_old_nand$I$a$)",
 229   "sync_new_add_optab[$A] = CODE_FOR_$(sync_new_add$I$a$)",
 230   "sync_new_sub_optab[$A] = CODE_FOR_$(sync_new_sub$I$a$)",
 231   "sync_new_ior_optab[$A] = CODE_FOR_$(sync_new_ior$I$a$)",
 232   "sync_new_and_optab[$A] = CODE_FOR_$(sync_new_and$I$a$)",
 233   "sync_new_xor_optab[$A] = CODE_FOR_$(sync_new_xor$I$a$)",
 234   "sync_new_nand_optab[$A] = CODE_FOR_$(sync_new_nand$I$a$)",
 235   "sync_compare_and_swap[$A] = CODE_FOR_$(sync_compare_and_swap$I$a$)",
 236   "sync_compare_and_swap_cc[$A] = CODE_FOR_$(sync_compare_and_swap_cc$I$a$)",
 237   "sync_lock_test_and_set[$A] = CODE_FOR_$(sync_lock_test_and_set$I$a$)",
 238   "sync_lock_release[$A] = CODE_FOR_$(sync_lock_release$I$a$)",
 239   "optab_handler (vec_set_optab, $A)->insn_code = CODE_FOR_$(vec_set$a$)",
 240   "optab_handler (vec_extract_optab, $A)->insn_code = CODE_FOR_$(vec_extract$a$)",
 241   "optab_handler (vec_extract_even_optab, $A)->insn_code = CODE_FOR_$(vec_extract_even$a$)",
 242   "optab_handler (vec_extract_odd_optab, $A)->insn_code = CODE_FOR_$(vec_extract_odd$a$)",
 243   "optab_handler (vec_interleave_high_optab, $A)->insn_code = CODE_FOR_$(vec_interleave_high$a$)",
 244   "optab_handler (vec_interleave_low_optab, $A)->insn_code = CODE_FOR_$(vec_interleave_low$a$)",
 245   "optab_handler (vec_init_optab, $A)->insn_code = CODE_FOR_$(vec_init$a$)",
 246   "optab_handler (vec_shl_optab, $A)->insn_code = CODE_FOR_$(vec_shl_$a$)",
 247   "optab_handler (vec_shr_optab, $A)->insn_code = CODE_FOR_$(vec_shr_$a$)",
 248   "optab_handler (vec_realign_load_optab, $A)->insn_code = CODE_FOR_$(vec_realign_load_$a$)",
 249   "vcond_gen_code[$A] = CODE_FOR_$(vcond$a$)",
 250   "vcondu_gen_code[$A] = CODE_FOR_$(vcondu$a$)",
 251   "optab_handler (ssum_widen_optab, $A)->insn_code = CODE_FOR_$(widen_ssum$I$a3$)",
 252   "optab_handler (usum_widen_optab, $A)->insn_code = CODE_FOR_$(widen_usum$I$a3$)",
 253   "optab_handler (udot_prod_optab, $A)->insn_code = CODE_FOR_$(udot_prod$I$a$)",
 254   "optab_handler (sdot_prod_optab, $A)->insn_code = CODE_FOR_$(sdot_prod$I$a$)",
 255   "optab_handler (reduc_smax_optab, $A)->insn_code = CODE_FOR_$(reduc_smax_$a$)",
 256   "optab_handler (reduc_umax_optab, $A)->insn_code = CODE_FOR_$(reduc_umax_$a$)",
 257   "optab_handler (reduc_smin_optab, $A)->insn_code = CODE_FOR_$(reduc_smin_$a$)",
 258   "optab_handler (reduc_umin_optab, $A)->insn_code = CODE_FOR_$(reduc_umin_$a$)",
 259   "optab_handler (reduc_splus_optab, $A)->insn_code = CODE_FOR_$(reduc_splus_$a$)" ,
 260   "optab_handler (reduc_uplus_optab, $A)->insn_code = CODE_FOR_$(reduc_uplus_$a$)",
 261   "optab_handler (vec_widen_umult_hi_optab, $A)->insn_code = CODE_FOR_$(vec_widen_umult_hi_$a$)",
 262   "optab_handler (vec_widen_umult_lo_optab, $A)->insn_code = CODE_FOR_$(vec_widen_umult_lo_$a$)",
 263   "optab_handler (vec_widen_smult_hi_optab, $A)->insn_code = CODE_FOR_$(vec_widen_smult_hi_$a$)",
 264   "optab_handler (vec_widen_smult_lo_optab, $A)->insn_code = CODE_FOR_$(vec_widen_smult_lo_$a$)",
 265   "optab_handler (vec_unpacks_hi_optab, $A)->insn_code = CODE_FOR_$(vec_unpacks_hi_$a$)",
 266   "optab_handler (vec_unpacks_lo_optab, $A)->insn_code = CODE_FOR_$(vec_unpacks_lo_$a$)",
 267   "optab_handler (vec_unpacku_hi_optab, $A)->insn_code = CODE_FOR_$(vec_unpacku_hi_$a$)",
 268   "optab_handler (vec_unpacku_lo_optab, $A)->insn_code = CODE_FOR_$(vec_unpacku_lo_$a$)",
 269   "optab_handler (vec_unpacks_float_hi_optab, $A)->insn_code = CODE_FOR_$(vec_unpacks_float_hi_$a$)",
 270   "optab_handler (vec_unpacks_float_lo_optab, $A)->insn_code = CODE_FOR_$(vec_unpacks_float_lo_$a$)",
 271   "optab_handler (vec_unpacku_float_hi_optab, $A)->insn_code = CODE_FOR_$(vec_unpacku_float_hi_$a$)",
 272   "optab_handler (vec_unpacku_float_lo_optab, $A)->insn_code = CODE_FOR_$(vec_unpacku_float_lo_$a$)",
 273   "optab_handler (vec_pack_trunc_optab, $A)->insn_code = CODE_FOR_$(vec_pack_trunc_$a$)",
 274   "optab_handler (vec_pack_ssat_optab, $A)->insn_code = CODE_FOR_$(vec_pack_ssat_$a$)",
 275   "optab_handler (vec_pack_usat_optab, $A)->insn_code = CODE_FOR_$(vec_pack_usat_$a$)",
 276   "optab_handler (vec_pack_sfix_trunc_optab, $A)->insn_code = CODE_FOR_$(vec_pack_sfix_trunc_$a$)",
 277   "optab_handler (vec_pack_ufix_trunc_optab, $A)->insn_code = CODE_FOR_$(vec_pack_ufix_trunc_$a$)"
 278 };
 279
 280 static void gen_insn (rtx);
 281
 282 static void
 283 gen_insn (rtx insn)
 284 {
 285   const char *name = XSTR (insn, 0);
 286   int m1 = 0, m2 = 0, op = 0;
 287   size_t pindex;
 288   int i;
 289   const char *np, *pp, *p, *q;
 290
 291   /* Don't mention instructions whose names are the null string.
 292      They are in the machine description just to be recognized.  */
 293   if (*name == 0)
 294     return;
 295
 296   /* See if NAME matches one of the patterns we have for the optabs we know
 297      about.  */
 298
 299   for (pindex = 0; pindex < ARRAY_SIZE (optabs); pindex++)
 300     {
 301       int force_float = 0, force_int = 0, force_partial_int = 0;
 302       int force_fixed = 0;
 303       int force_consec = 0;
 304       int matches = 1;
 305
 306       for (pp = optabs[pindex]; pp[0] != '$' || pp[1] != '('; pp++)
 307         ;
 308
 309       for (pp += 2, np = name; matches && ! (pp[0] == '$' && pp[1] == ')');
 310            pp++)
 311         {
 312           if (*pp != '$')
 313             {
 314               if (*pp != *np++)
 315                 break;
 316             }
 317           else
 318             switch (*++pp)
 319               {
 320               case 'N':
 321                 force_consec = 1;
 322                 break;
 323               case 'I':
 324                 force_int = 1;
 325                 break;
 326               case 'P':
 327                 force_partial_int = 1;
 328                 break;
 329               case 'F':
 330                 force_float = 1;
 331                 break;
 332               case 'Q':
 333                 force_fixed = 1;
 334                 break;
 335               case 'V':
 336                 break;
 337               case 'c':
 338                 for (op = 0; op < NUM_RTX_CODE; op++)
 339                   {
 340                     for (p = GET_RTX_NAME(op), q = np; *p; p++, q++)
 341                       if (*p != *q)
 342                         break;
 343
 344                     /* We have to be concerned about matching "gt" and
 345                        missing "gtu", e.g., so verify we have reached the
 346                        end of thing we are to match.  */
 347                     if (*p == 0 && *q == 0
 348                         && (GET_RTX_CLASS (op) == RTX_COMPARE
 349                             || GET_RTX_CLASS (op) == RTX_COMM_COMPARE))
 350                       break;
 351                   }
 352
 353                 if (op == NUM_RTX_CODE)
 354                   matches = 0;
 355                 else
 356                   np += strlen (GET_RTX_NAME(op));
 357                 break;
 358               case 'a':
 359               case 'b':
 360                 /* This loop will stop at the first prefix match, so
 361                    look through the modes in reverse order, in case
 362                    there are extra CC modes and CC is a prefix of the
 363                    CC modes (as it should be).  */
 364                 for (i = (MAX_MACHINE_MODE) - 1; i >= 0; i--)
 365                   {
 366                     for (p = GET_MODE_NAME(i), q = np; *p; p++, q++)
 367                       if (TOLOWER (*p) != *q)
 368                         break;
 369
 370                     if (*p == 0
 371                         && (! force_int || mode_class[i] == MODE_INT
 372                             || mode_class[i] == MODE_VECTOR_INT)
 373                         && (! force_partial_int
 374                             || mode_class[i] == MODE_INT
 375                             || mode_class[i] == MODE_PARTIAL_INT
 376                             || mode_class[i] == MODE_VECTOR_INT)
 377                         && (! force_float
 378                             || mode_class[i] == MODE_FLOAT
 379                             || mode_class[i] == MODE_DECIMAL_FLOAT
 380                             || mode_class[i] == MODE_COMPLEX_FLOAT
 381                             || mode_class[i] == MODE_VECTOR_FLOAT)
 382                         && (! force_fixed
 383                             || mode_class[i] == MODE_FRACT
 384                             || mode_class[i] == MODE_UFRACT
 385                             || mode_class[i] == MODE_ACCUM
 386                             || mode_class[i] == MODE_UACCUM
 387                             || mode_class[i] == MODE_VECTOR_FRACT
 388                             || mode_class[i] == MODE_VECTOR_UFRACT
 389                             || mode_class[i] == MODE_VECTOR_ACCUM
 390                             || mode_class[i] == MODE_VECTOR_UACCUM))
 391                       break;
 392                   }
 393
 394                 if (i < 0)
 395                   matches = 0;
 396                 else if (*pp == 'a')
 397                   m1 = i, np += strlen (GET_MODE_NAME(i));
 398                 else
 399                   m2 = i, np += strlen (GET_MODE_NAME(i));
 400
 401                 force_int = force_partial_int = force_float = force_fixed = 0;
 402                 break;
 403
 404               default:
 405                 gcc_unreachable ();
 406               }
 407         }
 408
 409       if (matches && pp[0] == '$' && pp[1] == ')'
 410           && *np == 0
 411           && (! force_consec || (int) GET_MODE_WIDER_MODE(m1) == m2))
 412         break;
 413     }
 414
 415   if (pindex == ARRAY_SIZE (optabs))
 416     return;
 417
 418   /* We found a match.  If this pattern is only conditionally present,
 419      write out the "if" and two extra blanks.  */
 420
 421   if (*XSTR (insn, 2) != 0)
 422     printf ("  if (HAVE_%s)\n  ", name);
 423
 424   printf ("  ");
 425
 426   /* Now write out the initialization, making all required substitutions.  */
 427   for (pp = optabs[pindex]; *pp; pp++)
 428     {
 429       if (*pp != '$')
 430         putchar (*pp);
 431       else
 432         switch (*++pp)
 433           {
 434           case '(':  case ')':
 435           case 'I':  case 'F':  case 'N':
 436             break;
 437           case 'V':
 438             if (SCALAR_FLOAT_MODE_P (m1))
 439               printf ("v");
 440             break;
 441           case 'a':
 442             for (np = GET_MODE_NAME(m1); *np; np++)
 443               putchar (TOLOWER (*np));
 444             break;
 445           case 'b':
 446             for (np = GET_MODE_NAME(m2); *np; np++)
 447               putchar (TOLOWER (*np));
 448             break;
 449           case 'A':
 450             printf ("%smode", GET_MODE_NAME(m1));
 451             break;
 452           case 'B':
 453             printf ("%smode", GET_MODE_NAME(m2));
 454             break;
 455           case 'c':
 456             printf ("%s", GET_RTX_NAME(op));
 457             break;
 458           case 'C':
 459             for (np = GET_RTX_NAME(op); *np; np++)
 460               putchar (TOUPPER (*np));
 461             break;
 462           }
 463     }
 464
 465   printf (";\n");
 466 }
 467
 468 extern int main (int, char **);
 469
 470 int
 471 main (int argc, char **argv)
 472 {
 473   rtx desc;
 474
 475   progname = "genopinit";
 476
 477   if (init_md_reader_args (argc, argv) != SUCCESS_EXIT_CODE)
 478     return (FATAL_EXIT_CODE);
 479
 480   printf ("/* Generated automatically by the program `genopinit'\n\
 481 from the machine description file `md'.  */\n\n");
 482
 483   printf ("#include \"config.h\"\n");
 484   printf ("#include \"system.h\"\n");
 485   printf ("#include \"coretypes.h\"\n");
 486   printf ("#include \"tm.h\"\n");
 487   printf ("#include \"rtl.h\"\n");
 488   printf ("#include \"tm_p.h\"\n");
 489   printf ("#include \"flags.h\"\n");
 490   printf ("#include \"insn-config.h\"\n");
 491   printf ("#include \"recog.h\"\n");
 492   printf ("#include \"expr.h\"\n");
 493   printf ("#include \"optabs.h\"\n");
 494   printf ("#include \"reload.h\"\n\n");
 495
 496   printf ("void\ninit_all_optabs (void)\n{\n");
 497
 498   puts ("\
 499 #ifdef FIXUNS_TRUNC_LIKE_FIX_TRUNC\n\
 500   int i, j;\n\
 501 #endif\n");
 502
 503   /* Read the machine description.  */
 504
 505   while (1)
 506     {
 507       int line_no, insn_code_number = 0;
 508
 509       desc = read_md_rtx (&line_no, &insn_code_number);
 510       if (desc == NULL)
 511         break;
 512
 513       if (GET_CODE (desc) == DEFINE_INSN || GET_CODE (desc) == DEFINE_EXPAND)
 514         gen_insn (desc);
 515     }
 516
 517   puts ("\
 518 \n\
 519 #ifdef FIXUNS_TRUNC_LIKE_FIX_TRUNC\n\
 520   /* This flag says the same insns that convert to a signed fixnum\n\
 521      also convert validly to an unsigned one.  */\n\
 522   for (i = 0; i < NUM_MACHINE_MODES; i++)\n\
 523     for (j = 0; j < NUM_MACHINE_MODES; j++)\n\
 524       convert_optab_handler (ufixtrunc_optab, i, j)->insn_code\n\
 525       = convert_optab_handler (sfixtrunc_optab, i, j)->insn_code;\n\
 526 #endif\n\
 527 }");
 528
 529   fflush (stdout);
 530   return (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);
 531 }