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[/] [openrisc/] [trunk/] [gnu-old/] [gcc-4.2.2/] [gcc/] [genopinit.c] - Blame information for rev 827

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/* 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 
 
54 
   $V means to emit 'v' if the first mode is a MODE_FLOAT mode.
55 
 
56 
   For some optabs, we store the operation by RTL codes.  These are only
57 
   used for comparisons.  In that case, $c and $C are the lower-case and
58 
   upper-case forms of the comparison, respectively.  */
59 
 
60 
static const char * const optabs[] =
61 
{ "sext_optab->handlers[$B][$A].insn_code = CODE_FOR_$(extend$a$b2$)",
62 
  "zext_optab->handlers[$B][$A].insn_code = CODE_FOR_$(zero_extend$a$b2$)",
63 
  "sfix_optab->handlers[$B][$A].insn_code = CODE_FOR_$(fix$F$a$I$b2$)",
64 
  "ufix_optab->handlers[$B][$A].insn_code = CODE_FOR_$(fixuns$F$a$b2$)",
65 
  "sfixtrunc_optab->handlers[$B][$A].insn_code = CODE_FOR_$(fix_trunc$F$a$I$b2$)",
66 
  "ufixtrunc_optab->handlers[$B][$A].insn_code = CODE_FOR_$(fixuns_trunc$F$a$I$b2$)",
67 
  "sfloat_optab->handlers[$B][$A].insn_code = CODE_FOR_$(float$I$a$F$b2$)",
68 
  "ufloat_optab->handlers[$B][$A].insn_code = CODE_FOR_$(floatuns$I$a$F$b2$)",
69 
  "trunc_optab->handlers[$B][$A].insn_code = CODE_FOR_$(trunc$a$b2$)",
70 
  "add_optab->handlers[$A].insn_code = CODE_FOR_$(add$P$a3$)",
71 
  "addv_optab->handlers[$A].insn_code =\n\
72 
    add_optab->handlers[$A].insn_code = CODE_FOR_$(add$F$a3$)",
73 
  "addv_optab->handlers[$A].insn_code = CODE_FOR_$(addv$I$a3$)",
74 
  "sub_optab->handlers[$A].insn_code = CODE_FOR_$(sub$P$a3$)",
75 
  "subv_optab->handlers[$A].insn_code =\n\
76 
    sub_optab->handlers[$A].insn_code = CODE_FOR_$(sub$F$a3$)",
77 
  "subv_optab->handlers[$A].insn_code = CODE_FOR_$(subv$I$a3$)",
78 
  "smul_optab->handlers[$A].insn_code = CODE_FOR_$(mul$P$a3$)",
79 
  "smulv_optab->handlers[$A].insn_code =\n\
80 
    smul_optab->handlers[$A].insn_code = CODE_FOR_$(mul$F$a3$)",
81 
  "smulv_optab->handlers[$A].insn_code = CODE_FOR_$(mulv$I$a3$)",
82 
  "umul_highpart_optab->handlers[$A].insn_code = CODE_FOR_$(umul$a3_highpart$)",
83 
  "smul_highpart_optab->handlers[$A].insn_code = CODE_FOR_$(smul$a3_highpart$)",
84 
  "smul_widen_optab->handlers[$B].insn_code = CODE_FOR_$(mul$a$b3$)$N",
85 
  "umul_widen_optab->handlers[$B].insn_code = CODE_FOR_$(umul$a$b3$)$N",
86 
  "usmul_widen_optab->handlers[$B].insn_code = CODE_FOR_$(usmul$a$b3$)$N",
87 
  "sdiv_optab->handlers[$A].insn_code = CODE_FOR_$(div$a3$)",
88 
  "sdivv_optab->handlers[$A].insn_code = CODE_FOR_$(div$V$I$a3$)",
89 
  "udiv_optab->handlers[$A].insn_code = CODE_FOR_$(udiv$I$a3$)",
90 
  "sdivmod_optab->handlers[$A].insn_code = CODE_FOR_$(divmod$a4$)",
91 
  "udivmod_optab->handlers[$A].insn_code = CODE_FOR_$(udivmod$a4$)",
92 
  "smod_optab->handlers[$A].insn_code = CODE_FOR_$(mod$a3$)",
93 
  "umod_optab->handlers[$A].insn_code = CODE_FOR_$(umod$a3$)",
94 
  "fmod_optab->handlers[$A].insn_code = CODE_FOR_$(fmod$a3$)",
95 
  "drem_optab->handlers[$A].insn_code = CODE_FOR_$(drem$a3$)",
96 
  "ftrunc_optab->handlers[$A].insn_code = CODE_FOR_$(ftrunc$F$a2$)",
97 
  "and_optab->handlers[$A].insn_code = CODE_FOR_$(and$a3$)",
98 
  "ior_optab->handlers[$A].insn_code = CODE_FOR_$(ior$a3$)",
99 
  "xor_optab->handlers[$A].insn_code = CODE_FOR_$(xor$a3$)",
100 
  "ashl_optab->handlers[$A].insn_code = CODE_FOR_$(ashl$a3$)",
101 
  "ashr_optab->handlers[$A].insn_code = CODE_FOR_$(ashr$a3$)",
102 
  "lshr_optab->handlers[$A].insn_code = CODE_FOR_$(lshr$a3$)",
103 
  "rotl_optab->handlers[$A].insn_code = CODE_FOR_$(rotl$a3$)",
104 
  "rotr_optab->handlers[$A].insn_code = CODE_FOR_$(rotr$a3$)",
105 
  "smin_optab->handlers[$A].insn_code = CODE_FOR_$(smin$a3$)",
106 
  "smax_optab->handlers[$A].insn_code = CODE_FOR_$(smax$a3$)",
107 
  "umin_optab->handlers[$A].insn_code = CODE_FOR_$(umin$I$a3$)",
108 
  "umax_optab->handlers[$A].insn_code = CODE_FOR_$(umax$I$a3$)",
109 
  "pow_optab->handlers[$A].insn_code = CODE_FOR_$(pow$a3$)",
110 
  "atan2_optab->handlers[$A].insn_code = CODE_FOR_$(atan2$a3$)",
111 
  "neg_optab->handlers[$A].insn_code = CODE_FOR_$(neg$P$a2$)",
112 
  "negv_optab->handlers[$A].insn_code =\n\
113 
    neg_optab->handlers[$A].insn_code = CODE_FOR_$(neg$F$a2$)",
114 
  "negv_optab->handlers[$A].insn_code = CODE_FOR_$(negv$I$a2$)",
115 
  "abs_optab->handlers[$A].insn_code = CODE_FOR_$(abs$P$a2$)",
116 
  "absv_optab->handlers[$A].insn_code =\n\
117 
    abs_optab->handlers[$A].insn_code = CODE_FOR_$(abs$F$a2$)",
118 
  "absv_optab->handlers[$A].insn_code = CODE_FOR_$(absv$I$a2$)",
119 
  "copysign_optab->handlers[$A].insn_code = CODE_FOR_$(copysign$F$a3$)",
120 
  "sqrt_optab->handlers[$A].insn_code = CODE_FOR_$(sqrt$a2$)",
121 
  "floor_optab->handlers[$A].insn_code = CODE_FOR_$(floor$a2$)",
122 
  "lfloor_optab->handlers[$A].insn_code = CODE_FOR_$(lfloor$a2$)",
123 
  "ceil_optab->handlers[$A].insn_code = CODE_FOR_$(ceil$a2$)",
124 
  "lceil_optab->handlers[$A].insn_code = CODE_FOR_$(lceil$a2$)",
125 
  "round_optab->handlers[$A].insn_code = CODE_FOR_$(round$a2$)",
126 
  "btrunc_optab->handlers[$A].insn_code = CODE_FOR_$(btrunc$a2$)",
127 
  "nearbyint_optab->handlers[$A].insn_code = CODE_FOR_$(nearbyint$a2$)",
128 
  "rint_optab->handlers[$A].insn_code = CODE_FOR_$(rint$a2$)",
129 
  "lrint_optab->handlers[$A].insn_code = CODE_FOR_$(lrint$a2$)",
130 
  "sincos_optab->handlers[$A].insn_code = CODE_FOR_$(sincos$a3$)",
131 
  "sin_optab->handlers[$A].insn_code = CODE_FOR_$(sin$a2$)",
132 
  "asin_optab->handlers[$A].insn_code = CODE_FOR_$(asin$a2$)",
133 
  "cos_optab->handlers[$A].insn_code = CODE_FOR_$(cos$a2$)",
134 
  "acos_optab->handlers[$A].insn_code = CODE_FOR_$(acos$a2$)",
135 
  "exp_optab->handlers[$A].insn_code = CODE_FOR_$(exp$a2$)",
136 
  "exp10_optab->handlers[$A].insn_code = CODE_FOR_$(exp10$a2$)",
137 
  "exp2_optab->handlers[$A].insn_code = CODE_FOR_$(exp2$a2$)",
138 
  "expm1_optab->handlers[$A].insn_code = CODE_FOR_$(expm1$a2$)",
139 
  "ldexp_optab->handlers[$A].insn_code = CODE_FOR_$(ldexp$a3$)",
140 
  "logb_optab->handlers[$A].insn_code = CODE_FOR_$(logb$a2$)",
141 
  "ilogb_optab->handlers[$A].insn_code = CODE_FOR_$(ilogb$a2$)",
142 
  "log_optab->handlers[$A].insn_code = CODE_FOR_$(log$a2$)",
143 
  "log10_optab->handlers[$A].insn_code = CODE_FOR_$(log10$a2$)",
144 
  "log2_optab->handlers[$A].insn_code = CODE_FOR_$(log2$a2$)",
145 
  "log1p_optab->handlers[$A].insn_code = CODE_FOR_$(log1p$a2$)",
146 
  "tan_optab->handlers[$A].insn_code = CODE_FOR_$(tan$a2$)",
147 
  "atan_optab->handlers[$A].insn_code = CODE_FOR_$(atan$a2$)",
148 
  "strlen_optab->handlers[$A].insn_code = CODE_FOR_$(strlen$a$)",
149 
  "one_cmpl_optab->handlers[$A].insn_code = CODE_FOR_$(one_cmpl$a2$)",
150 
  "ffs_optab->handlers[$A].insn_code = CODE_FOR_$(ffs$a2$)",
151 
  "clz_optab->handlers[$A].insn_code = CODE_FOR_$(clz$a2$)",
152 
  "ctz_optab->handlers[$A].insn_code = CODE_FOR_$(ctz$a2$)",
153 
  "popcount_optab->handlers[$A].insn_code = CODE_FOR_$(popcount$a2$)",
154 
  "parity_optab->handlers[$A].insn_code = CODE_FOR_$(parity$a2$)",
155 
  "mov_optab->handlers[$A].insn_code = CODE_FOR_$(mov$a$)",
156 
  "movstrict_optab->handlers[$A].insn_code = CODE_FOR_$(movstrict$a$)",
157 
  "movmisalign_optab->handlers[$A].insn_code = CODE_FOR_$(movmisalign$a$)",
158 
  "cmp_optab->handlers[$A].insn_code = CODE_FOR_$(cmp$a$)",
159 
  "tst_optab->handlers[$A].insn_code = CODE_FOR_$(tst$a$)",
160 
  "addcc_optab->handlers[$A].insn_code = CODE_FOR_$(add$acc$)",
161 
  "bcc_gen_fctn[$C] = gen_$(b$c$)",
162 
  "setcc_gen_code[$C] = CODE_FOR_$(s$c$)",
163 
  "movcc_gen_code[$A] = CODE_FOR_$(mov$acc$)",
164 
  "cbranch_optab->handlers[$A].insn_code = CODE_FOR_$(cbranch$a4$)",
165 
  "cmov_optab->handlers[$A].insn_code = CODE_FOR_$(cmov$a6$)",
166 
  "cstore_optab->handlers[$A].insn_code = CODE_FOR_$(cstore$a4$)",
167 
  "push_optab->handlers[$A].insn_code = CODE_FOR_$(push$a1$)",
168 
  "reload_in_optab[$A] = CODE_FOR_$(reload_in$a$)",
169 
  "reload_out_optab[$A] = CODE_FOR_$(reload_out$a$)",
170 
  "movmem_optab[$A] = CODE_FOR_$(movmem$a$)",
171 
  "cmpstr_optab[$A] = CODE_FOR_$(cmpstr$a$)",
172 
  "cmpstrn_optab[$A] = CODE_FOR_$(cmpstrn$a$)",
173 
  "cmpmem_optab[$A] = CODE_FOR_$(cmpmem$a$)",
174 
  "setmem_optab[$A] = CODE_FOR_$(setmem$a$)",
175 
  "sync_add_optab[$A] = CODE_FOR_$(sync_add$I$a$)",
176 
  "sync_sub_optab[$A] = CODE_FOR_$(sync_sub$I$a$)",
177 
  "sync_ior_optab[$A] = CODE_FOR_$(sync_ior$I$a$)",
178 
  "sync_and_optab[$A] = CODE_FOR_$(sync_and$I$a$)",
179 
  "sync_xor_optab[$A] = CODE_FOR_$(sync_xor$I$a$)",
180 
  "sync_nand_optab[$A] = CODE_FOR_$(sync_nand$I$a$)",
181 
  "sync_old_add_optab[$A] = CODE_FOR_$(sync_old_add$I$a$)",
182 
  "sync_old_sub_optab[$A] = CODE_FOR_$(sync_old_sub$I$a$)",
183 
  "sync_old_ior_optab[$A] = CODE_FOR_$(sync_old_ior$I$a$)",
184 
  "sync_old_and_optab[$A] = CODE_FOR_$(sync_old_and$I$a$)",
185 
  "sync_old_xor_optab[$A] = CODE_FOR_$(sync_old_xor$I$a$)",
186 
  "sync_old_nand_optab[$A] = CODE_FOR_$(sync_old_nand$I$a$)",
187 
  "sync_new_add_optab[$A] = CODE_FOR_$(sync_new_add$I$a$)",
188 
  "sync_new_sub_optab[$A] = CODE_FOR_$(sync_new_sub$I$a$)",
189 
  "sync_new_ior_optab[$A] = CODE_FOR_$(sync_new_ior$I$a$)",
190 
  "sync_new_and_optab[$A] = CODE_FOR_$(sync_new_and$I$a$)",
191 
  "sync_new_xor_optab[$A] = CODE_FOR_$(sync_new_xor$I$a$)",
192 
  "sync_new_nand_optab[$A] = CODE_FOR_$(sync_new_nand$I$a$)",
193 
  "sync_compare_and_swap[$A] = CODE_FOR_$(sync_compare_and_swap$I$a$)",
194 
  "sync_compare_and_swap_cc[$A] = CODE_FOR_$(sync_compare_and_swap_cc$I$a$)",
195 
  "sync_lock_test_and_set[$A] = CODE_FOR_$(sync_lock_test_and_set$I$a$)",
196 
  "sync_lock_release[$A] = CODE_FOR_$(sync_lock_release$I$a$)",
197 
  "vec_set_optab->handlers[$A].insn_code = CODE_FOR_$(vec_set$a$)",
198 
  "vec_extract_optab->handlers[$A].insn_code = CODE_FOR_$(vec_extract$a$)",
199 
  "vec_init_optab->handlers[$A].insn_code = CODE_FOR_$(vec_init$a$)",
200 
  "vec_shl_optab->handlers[$A].insn_code = CODE_FOR_$(vec_shl_$a$)",
201 
  "vec_shr_optab->handlers[$A].insn_code = CODE_FOR_$(vec_shr_$a$)",
202 
  "vec_realign_load_optab->handlers[$A].insn_code = CODE_FOR_$(vec_realign_load_$a$)",
203 
  "vcond_gen_code[$A] = CODE_FOR_$(vcond$a$)",
204 
  "vcondu_gen_code[$A] = CODE_FOR_$(vcondu$a$)",
205 
  "ssum_widen_optab->handlers[$A].insn_code = CODE_FOR_$(widen_ssum$I$a3$)",
206 
  "usum_widen_optab->handlers[$A].insn_code = CODE_FOR_$(widen_usum$I$a3$)",
207 
  "udot_prod_optab->handlers[$A].insn_code = CODE_FOR_$(udot_prod$I$a$)",
208 
  "sdot_prod_optab->handlers[$A].insn_code = CODE_FOR_$(sdot_prod$I$a$)",
209 
  "reduc_smax_optab->handlers[$A].insn_code = CODE_FOR_$(reduc_smax_$a$)",
210 
  "reduc_umax_optab->handlers[$A].insn_code = CODE_FOR_$(reduc_umax_$a$)",
211 
  "reduc_smin_optab->handlers[$A].insn_code = CODE_FOR_$(reduc_smin_$a$)",
212 
  "reduc_umin_optab->handlers[$A].insn_code = CODE_FOR_$(reduc_umin_$a$)",
213 
  "reduc_splus_optab->handlers[$A].insn_code = CODE_FOR_$(reduc_splus_$a$)" ,
214 
  "reduc_uplus_optab->handlers[$A].insn_code = CODE_FOR_$(reduc_uplus_$a$)"
215 
};
216 
 
217 
static void gen_insn (rtx);
218 
 
219 
static void
220 
gen_insn (rtx insn)
221 
{
222 
  const char *name = XSTR (insn, 0);
223 
  int m1 = 0, m2 = 0, op = 0;
224 
  size_t pindex;
225 
  int i;
226 
  const char *np, *pp, *p, *q;
227 
 
228 
  /* Don't mention instructions whose names are the null string.
229 
     They are in the machine description just to be recognized.  */
230 
  if (*name == 0)
231 
    return;
232 
 
233 
  /* See if NAME matches one of the patterns we have for the optabs we know
234 
     about.  */
235 
 
236 
  for (pindex = 0; pindex < ARRAY_SIZE (optabs); pindex++)
237 
    {
238 
      int force_float = 0, force_int = 0, force_partial_int = 0;
239 
      int force_consec = 0;
240 
      int matches = 1;
241 
 
242 
      for (pp = optabs[pindex]; pp[0] != '$' || pp[1] != '('; pp++)
243 
        ;
244 
 
245 
      for (pp += 2, np = name; matches && ! (pp[0] == '$' && pp[1] == ')');
246 
           pp++)
247 
        {
248 
          if (*pp != '$')
249 
            {
250 
              if (*pp != *np++)
251 
                break;
252 
            }
253 
          else
254 
            switch (*++pp)
255 
              {
256 
              case 'N':
257 
                force_consec = 1;
258 
                break;
259 
              case 'I':
260 
                force_int = 1;
261 
                break;
262 
              case 'P':
263 
                force_partial_int = 1;
264 
                break;
265 
              case 'F':
266 
                force_float = 1;
267 
                break;
268 
              case 'V':
269 
                break;
270 
              case 'c':
271 
                for (op = 0; op < NUM_RTX_CODE; op++)
272 
                  {
273 
                    for (p = GET_RTX_NAME(op), q = np; *p; p++, q++)
274 
                      if (*p != *q)
275 
                        break;
276 
 
277 
                    /* We have to be concerned about matching "gt" and
278 
                       missing "gtu", e.g., so verify we have reached the
279 
                       end of thing we are to match.  */
280 
                    if (*p == 0 && *q == 0
281 
                        && (GET_RTX_CLASS (op) == RTX_COMPARE
282 
                            || GET_RTX_CLASS (op) == RTX_COMM_COMPARE))
283 
                      break;
284 
                  }
285 
 
286 
                if (op == NUM_RTX_CODE)
287 
                  matches = 0;
288 
                else
289 
                  np += strlen (GET_RTX_NAME(op));
290 
                break;
291 
              case 'a':
292 
              case 'b':
293 
                /* This loop will stop at the first prefix match, so
294 
                   look through the modes in reverse order, in case
295 
                   there are extra CC modes and CC is a prefix of the
296 
                   CC modes (as it should be).  */
297 
                for (i = (MAX_MACHINE_MODE) - 1; i >= 0; i--)
298 
                  {
299 
                    for (p = GET_MODE_NAME(i), q = np; *p; p++, q++)
300 
                      if (TOLOWER (*p) != *q)
301 
                        break;
302 
 
303 
                    if (*p == 0
304 
                        && (! force_int || mode_class[i] == MODE_INT
305 
                            || mode_class[i] == MODE_VECTOR_INT)
306 
                        && (! force_partial_int
307 
                            || mode_class[i] == MODE_INT
308 
                            || mode_class[i] == MODE_PARTIAL_INT
309 
                            || mode_class[i] == MODE_VECTOR_INT)
310 
                        && (! force_float
311 
                            || mode_class[i] == MODE_FLOAT
312 
                            || mode_class[i] == MODE_DECIMAL_FLOAT
313 
                            || mode_class[i] == MODE_COMPLEX_FLOAT
314 
                            || mode_class[i] == MODE_VECTOR_FLOAT))
315 
                      break;
316 
                  }
317 
 
318 
                if (i < 0)
319 
                  matches = 0;
320 
                else if (*pp == 'a')
321 
                  m1 = i, np += strlen (GET_MODE_NAME(i));
322 
                else
323 
                  m2 = i, np += strlen (GET_MODE_NAME(i));
324 
 
325 
                force_int = force_partial_int = force_float = 0;
326 
                break;
327 
 
328 
              default:
329 
                gcc_unreachable ();
330 
              }
331 
        }
332 
 
333 
      if (matches && pp[0] == '$' && pp[1] == ')'
334 
          && *np == 0
335 
          && (! force_consec || (int) GET_MODE_WIDER_MODE(m1) == m2))
336 
        break;
337 
    }
338 
 
339 
  if (pindex == ARRAY_SIZE (optabs))
340 
    return;
341 
 
342 
  /* We found a match.  If this pattern is only conditionally present,
343 
     write out the "if" and two extra blanks.  */
344 
 
345 
  if (*XSTR (insn, 2) != 0)
346 
    printf ("  if (HAVE_%s)\n  ", name);
347 
 
348 
  printf ("  ");
349 
 
350 
  /* Now write out the initialization, making all required substitutions.  */
351 
  for (pp = optabs[pindex]; *pp; pp++)
352 
    {
353 
      if (*pp != '$')
354 
        putchar (*pp);
355 
      else
356 
        switch (*++pp)
357 
          {
358 
          case '(':  case ')':
359 
          case 'I':  case 'F':  case 'N':
360 
            break;
361 
          case 'V':
362 
            if (SCALAR_FLOAT_MODE_P (m1))
363 
              printf ("v");
364 
            break;
365 
          case 'a':
366 
            for (np = GET_MODE_NAME(m1); *np; np++)
367 
              putchar (TOLOWER (*np));
368 
            break;
369 
          case 'b':
370 
            for (np = GET_MODE_NAME(m2); *np; np++)
371 
              putchar (TOLOWER (*np));
372 
            break;
373 
          case 'A':
374 
            printf ("%smode", GET_MODE_NAME(m1));
375 
            break;
376 
          case 'B':
377 
            printf ("%smode", GET_MODE_NAME(m2));
378 
            break;
379 
          case 'c':
380 
            printf ("%s", GET_RTX_NAME(op));
381 
            break;
382 
          case 'C':
383 
            for (np = GET_RTX_NAME(op); *np; np++)
384 
              putchar (TOUPPER (*np));
385 
            break;
386 
          }
387 
    }
388 
 
389 
  printf (";\n");
390 
}
391 
 
392 
extern int main (int, char **);
393 
 
394 
int
395 
main (int argc, char **argv)
396 
{
397 
  rtx desc;
398 
 
399 
  progname = "genopinit";
400 
 
401 
  if (init_md_reader_args (argc, argv) != SUCCESS_EXIT_CODE)
402 
    return (FATAL_EXIT_CODE);
403 
 
404 
  printf ("/* Generated automatically by the program `genopinit'\n\
405 
from the machine description file `md'.  */\n\n");
406 
 
407 
  printf ("#include \"config.h\"\n");
408 
  printf ("#include \"system.h\"\n");
409 
  printf ("#include \"coretypes.h\"\n");
410 
  printf ("#include \"tm.h\"\n");
411 
  printf ("#include \"rtl.h\"\n");
412 
  printf ("#include \"flags.h\"\n");
413 
  printf ("#include \"insn-config.h\"\n");
414 
  printf ("#include \"recog.h\"\n");
415 
  printf ("#include \"expr.h\"\n");
416 
  printf ("#include \"optabs.h\"\n");
417 
  printf ("#include \"reload.h\"\n\n");
418 
 
419 
  printf ("void\ninit_all_optabs (void)\n{\n");
420 
 
421 
  puts ("\
422 
#ifdef FIXUNS_TRUNC_LIKE_FIX_TRUNC\n\
423 
  int i, j;\n\
424 
#endif\n");
425 
 
426 
  /* Read the machine description.  */
427 
 
428 
  while (1)
429 
    {
430 
      int line_no, insn_code_number = 0;
431 
 
432 
      desc = read_md_rtx (&line_no, &insn_code_number);
433 
      if (desc == NULL)
434 
        break;
435 
 
436 
      if (GET_CODE (desc) == DEFINE_INSN || GET_CODE (desc) == DEFINE_EXPAND)
437 
        gen_insn (desc);
438 
    }
439 
 
440 
  puts ("\
441 
\n\
442 
#ifdef FIXUNS_TRUNC_LIKE_FIX_TRUNC\n\
443 
  /* This flag says the same insns that convert to a signed fixnum\n\
444 
     also convert validly to an unsigned one.  */\n\
445 
  for (i = 0; i < NUM_MACHINE_MODES; i++)\n\
446 
    for (j = 0; j < NUM_MACHINE_MODES; j++)\n\
447 
      ufixtrunc_optab->handlers[i][j].insn_code\n\
448 
      = sfixtrunc_optab->handlers[i][j].insn_code;\n\
449 
#endif\n\
450 
}");
451 
 
452 
  fflush (stdout);
453 
  return (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);
454 
}

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