[8833] | 1 | /* Generate code from machine description to perform peephole optimizations. |
---|
| 2 | Copyright (C) 1987, 1989, 1992 Free Software Foundation, Inc. |
---|
| 3 | |
---|
| 4 | This file is part of GNU CC. |
---|
| 5 | |
---|
| 6 | GNU CC is free software; you can redistribute it and/or modify |
---|
| 7 | it under the terms of the GNU General Public License as published by |
---|
| 8 | the Free Software Foundation; either version 2, or (at your option) |
---|
| 9 | any later version. |
---|
| 10 | |
---|
| 11 | GNU CC is distributed in the hope that it will be useful, |
---|
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
---|
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
---|
| 14 | GNU General Public License for more details. |
---|
| 15 | |
---|
| 16 | You should have received a copy of the GNU General Public License |
---|
| 17 | along with GNU CC; see the file COPYING. If not, write to |
---|
| 18 | the Free Software Foundation, 59 Temple Place - Suite 330, |
---|
| 19 | Boston, MA 02111-1307, USA. */ |
---|
| 20 | |
---|
| 21 | |
---|
| 22 | #include <stdio.h> |
---|
| 23 | #include "hconfig.h" |
---|
| 24 | #include "rtl.h" |
---|
| 25 | #include "obstack.h" |
---|
| 26 | |
---|
| 27 | static struct obstack obstack; |
---|
| 28 | struct obstack *rtl_obstack = &obstack; |
---|
| 29 | |
---|
| 30 | #define obstack_chunk_alloc xmalloc |
---|
| 31 | #define obstack_chunk_free free |
---|
| 32 | |
---|
| 33 | extern void free (); |
---|
| 34 | extern rtx read_rtx (); |
---|
| 35 | |
---|
| 36 | /* While tree-walking an instruction pattern, we keep a chain |
---|
| 37 | of these `struct link's to record how to get down to the |
---|
| 38 | current position. In each one, POS is the operand number, |
---|
| 39 | and if the operand is a vector VEC is the element number. |
---|
| 40 | VEC is -1 if the operand is not a vector. */ |
---|
| 41 | |
---|
| 42 | struct link |
---|
| 43 | { |
---|
| 44 | struct link *next; |
---|
| 45 | int pos; |
---|
| 46 | int vecelt; |
---|
| 47 | }; |
---|
| 48 | |
---|
| 49 | char *xmalloc (); |
---|
| 50 | static void match_rtx (); |
---|
| 51 | static void gen_exp (); |
---|
| 52 | static void fatal (); |
---|
| 53 | void fancy_abort (); |
---|
| 54 | |
---|
| 55 | static int max_opno; |
---|
| 56 | |
---|
| 57 | /* Number of operands used in current peephole definition. */ |
---|
| 58 | |
---|
| 59 | static int n_operands; |
---|
| 60 | |
---|
| 61 | /* Peephole optimizations get insn codes just like insn patterns. |
---|
| 62 | Count them so we know the code of the define_peephole we are handling. */ |
---|
| 63 | |
---|
| 64 | static int insn_code_number = 0; |
---|
| 65 | |
---|
| 66 | static void print_path (); |
---|
| 67 | static void print_code (); |
---|
| 68 | |
---|
| 69 | static void |
---|
| 70 | gen_peephole (peep) |
---|
| 71 | rtx peep; |
---|
| 72 | { |
---|
| 73 | int ninsns = XVECLEN (peep, 0); |
---|
| 74 | int i; |
---|
| 75 | |
---|
| 76 | n_operands = 0; |
---|
| 77 | |
---|
| 78 | printf (" insn = ins1;\n"); |
---|
| 79 | #if 0 |
---|
| 80 | printf (" want_jump = 0;\n"); |
---|
| 81 | #endif |
---|
| 82 | |
---|
| 83 | for (i = 0; i < ninsns; i++) |
---|
| 84 | { |
---|
| 85 | if (i > 0) |
---|
| 86 | { |
---|
| 87 | printf (" do { insn = NEXT_INSN (insn);\n"); |
---|
| 88 | printf (" if (insn == 0) goto L%d; }\n", |
---|
| 89 | insn_code_number); |
---|
| 90 | printf (" while (GET_CODE (insn) == NOTE\n"); |
---|
| 91 | printf ("\t || (GET_CODE (insn) == INSN\n"); |
---|
| 92 | printf ("\t && (GET_CODE (PATTERN (insn)) == USE\n"); |
---|
| 93 | printf ("\t\t || GET_CODE (PATTERN (insn)) == CLOBBER)));\n"); |
---|
| 94 | |
---|
| 95 | printf (" if (GET_CODE (insn) == CODE_LABEL\n\ |
---|
| 96 | || GET_CODE (insn) == BARRIER)\n goto L%d;\n", |
---|
| 97 | insn_code_number); |
---|
| 98 | } |
---|
| 99 | |
---|
| 100 | #if 0 |
---|
| 101 | printf (" if (GET_CODE (insn) == JUMP_INSN)\n"); |
---|
| 102 | printf (" want_jump = JUMP_LABEL (insn);\n"); |
---|
| 103 | #endif |
---|
| 104 | |
---|
| 105 | printf (" pat = PATTERN (insn);\n"); |
---|
| 106 | |
---|
| 107 | /* Walk the insn's pattern, remembering at all times the path |
---|
| 108 | down to the walking point. */ |
---|
| 109 | |
---|
| 110 | match_rtx (XVECEXP (peep, 0, i), NULL_PTR, insn_code_number); |
---|
| 111 | } |
---|
| 112 | |
---|
| 113 | /* We get this far if the pattern matches. |
---|
| 114 | Now test the extra condition. */ |
---|
| 115 | |
---|
| 116 | if (XSTR (peep, 1) && XSTR (peep, 1)[0]) |
---|
| 117 | printf (" if (! (%s)) goto L%d;\n", |
---|
| 118 | XSTR (peep, 1), insn_code_number); |
---|
| 119 | |
---|
| 120 | /* If that matches, construct new pattern and put it in the first insn. |
---|
| 121 | This new pattern will never be matched. |
---|
| 122 | It exists only so that insn-extract can get the operands back. |
---|
| 123 | So use a simple regular form: a PARALLEL containing a vector |
---|
| 124 | of all the operands. */ |
---|
| 125 | |
---|
| 126 | printf (" PATTERN (ins1) = gen_rtx (PARALLEL, VOIDmode, gen_rtvec_v (%d, operands));\n", n_operands); |
---|
| 127 | |
---|
| 128 | #if 0 |
---|
| 129 | printf (" if (want_jump && GET_CODE (ins1) != JUMP_INSN)\n"); |
---|
| 130 | printf (" {\n"); |
---|
| 131 | printf (" rtx insn2 = emit_jump_insn_before (PATTERN (ins1), ins1);\n"); |
---|
| 132 | printf (" delete_insn (ins1);\n"); |
---|
| 133 | printf (" ins1 = ins2;\n"); |
---|
| 134 | printf (" }\n"); |
---|
| 135 | #endif |
---|
| 136 | |
---|
| 137 | /* Record this define_peephole's insn code in the insn, |
---|
| 138 | as if it had been recognized to match this. */ |
---|
| 139 | printf (" INSN_CODE (ins1) = %d;\n", |
---|
| 140 | insn_code_number); |
---|
| 141 | |
---|
| 142 | /* Delete the remaining insns. */ |
---|
| 143 | if (ninsns > 1) |
---|
| 144 | printf (" delete_for_peephole (NEXT_INSN (ins1), insn);\n"); |
---|
| 145 | |
---|
| 146 | /* See reload1.c for insertion of NOTE which guarantees that this |
---|
| 147 | cannot be zero. */ |
---|
| 148 | printf (" return NEXT_INSN (insn);\n"); |
---|
| 149 | |
---|
| 150 | printf (" L%d:\n\n", insn_code_number); |
---|
| 151 | } |
---|
| 152 | |
---|
| 153 | static void |
---|
| 154 | match_rtx (x, path, fail_label) |
---|
| 155 | rtx x; |
---|
| 156 | struct link *path; |
---|
| 157 | int fail_label; |
---|
| 158 | { |
---|
| 159 | register RTX_CODE code; |
---|
| 160 | register int i; |
---|
| 161 | register int len; |
---|
| 162 | register char *fmt; |
---|
| 163 | struct link link; |
---|
| 164 | |
---|
| 165 | if (x == 0) |
---|
| 166 | return; |
---|
| 167 | |
---|
| 168 | |
---|
| 169 | code = GET_CODE (x); |
---|
| 170 | |
---|
| 171 | switch (code) |
---|
| 172 | { |
---|
| 173 | case MATCH_OPERAND: |
---|
| 174 | if (XINT (x, 0) > max_opno) |
---|
| 175 | max_opno = XINT (x, 0); |
---|
| 176 | if (XINT (x, 0) >= n_operands) |
---|
| 177 | n_operands = 1 + XINT (x, 0); |
---|
| 178 | |
---|
| 179 | printf (" x = "); |
---|
| 180 | print_path (path); |
---|
| 181 | printf (";\n"); |
---|
| 182 | |
---|
| 183 | printf (" operands[%d] = x;\n", XINT (x, 0)); |
---|
| 184 | if (XSTR (x, 1) && XSTR (x, 1)[0]) |
---|
| 185 | printf (" if (! %s (x, %smode)) goto L%d;\n", |
---|
| 186 | XSTR (x, 1), GET_MODE_NAME (GET_MODE (x)), fail_label); |
---|
| 187 | return; |
---|
| 188 | |
---|
| 189 | case MATCH_DUP: |
---|
| 190 | case MATCH_PAR_DUP: |
---|
| 191 | printf (" x = "); |
---|
| 192 | print_path (path); |
---|
| 193 | printf (";\n"); |
---|
| 194 | |
---|
| 195 | printf (" if (!rtx_equal_p (operands[%d], x)) goto L%d;\n", |
---|
| 196 | XINT (x, 0), fail_label); |
---|
| 197 | return; |
---|
| 198 | |
---|
| 199 | case MATCH_OP_DUP: |
---|
| 200 | printf (" x = "); |
---|
| 201 | print_path (path); |
---|
| 202 | printf (";\n"); |
---|
| 203 | |
---|
| 204 | printf (" if (GET_CODE (operands[%d]) != GET_CODE (x)\n", XINT (x, 0)); |
---|
| 205 | printf (" || GET_MODE (operands[%d]) != GET_MODE (x)) goto L%d;\n", |
---|
| 206 | XINT (x, 0), fail_label); |
---|
| 207 | printf (" operands[%d] = x;\n", XINT (x, 0)); |
---|
| 208 | link.next = path; |
---|
| 209 | link.vecelt = -1; |
---|
| 210 | for (i = 0; i < XVECLEN (x, 1); i++) |
---|
| 211 | { |
---|
| 212 | link.pos = i; |
---|
| 213 | match_rtx (XVECEXP (x, 1, i), &link, fail_label); |
---|
| 214 | } |
---|
| 215 | return; |
---|
| 216 | |
---|
| 217 | case MATCH_OPERATOR: |
---|
| 218 | if (XINT (x, 0) > max_opno) |
---|
| 219 | max_opno = XINT (x, 0); |
---|
| 220 | if (XINT (x, 0) >= n_operands) |
---|
| 221 | n_operands = 1 + XINT (x, 0); |
---|
| 222 | |
---|
| 223 | printf (" x = "); |
---|
| 224 | print_path (path); |
---|
| 225 | printf (";\n"); |
---|
| 226 | |
---|
| 227 | printf (" operands[%d] = x;\n", XINT (x, 0)); |
---|
| 228 | if (XSTR (x, 1) && XSTR (x, 1)[0]) |
---|
| 229 | printf (" if (! %s (x, %smode)) goto L%d;\n", |
---|
| 230 | XSTR (x, 1), GET_MODE_NAME (GET_MODE (x)), fail_label); |
---|
| 231 | link.next = path; |
---|
| 232 | link.vecelt = -1; |
---|
| 233 | for (i = 0; i < XVECLEN (x, 2); i++) |
---|
| 234 | { |
---|
| 235 | link.pos = i; |
---|
| 236 | match_rtx (XVECEXP (x, 2, i), &link, fail_label); |
---|
| 237 | } |
---|
| 238 | return; |
---|
| 239 | |
---|
| 240 | case MATCH_PARALLEL: |
---|
| 241 | if (XINT (x, 0) > max_opno) |
---|
| 242 | max_opno = XINT (x, 0); |
---|
| 243 | if (XINT (x, 0) >= n_operands) |
---|
| 244 | n_operands = 1 + XINT (x, 0); |
---|
| 245 | |
---|
| 246 | printf (" x = "); |
---|
| 247 | print_path (path); |
---|
| 248 | printf (";\n"); |
---|
| 249 | |
---|
| 250 | printf (" if (GET_CODE (x) != PARALLEL) goto L%d;\n", fail_label); |
---|
| 251 | printf (" operands[%d] = x;\n", XINT (x, 0)); |
---|
| 252 | if (XSTR (x, 1) && XSTR (x, 1)[0]) |
---|
| 253 | printf (" if (! %s (x, %smode)) goto L%d;\n", |
---|
| 254 | XSTR (x, 1), GET_MODE_NAME (GET_MODE (x)), fail_label); |
---|
| 255 | link.next = path; |
---|
| 256 | link.pos = 0; |
---|
| 257 | for (i = 0; i < XVECLEN (x, 2); i++) |
---|
| 258 | { |
---|
| 259 | link.vecelt = i; |
---|
| 260 | match_rtx (XVECEXP (x, 2, i), &link, fail_label); |
---|
| 261 | } |
---|
| 262 | return; |
---|
| 263 | |
---|
| 264 | case ADDRESS: |
---|
| 265 | match_rtx (XEXP (x, 0), path, fail_label); |
---|
| 266 | return; |
---|
| 267 | } |
---|
| 268 | |
---|
| 269 | printf (" x = "); |
---|
| 270 | print_path (path); |
---|
| 271 | printf (";\n"); |
---|
| 272 | |
---|
| 273 | printf (" if (GET_CODE (x) != "); |
---|
| 274 | print_code (code); |
---|
| 275 | printf (") goto L%d;\n", fail_label); |
---|
| 276 | |
---|
| 277 | if (GET_MODE (x) != VOIDmode) |
---|
| 278 | { |
---|
| 279 | printf (" if (GET_MODE (x) != %smode) goto L%d;\n", |
---|
| 280 | GET_MODE_NAME (GET_MODE (x)), fail_label); |
---|
| 281 | } |
---|
| 282 | |
---|
| 283 | link.next = path; |
---|
| 284 | link.vecelt = -1; |
---|
| 285 | fmt = GET_RTX_FORMAT (code); |
---|
| 286 | len = GET_RTX_LENGTH (code); |
---|
| 287 | for (i = 0; i < len; i++) |
---|
| 288 | { |
---|
| 289 | link.pos = i; |
---|
| 290 | if (fmt[i] == 'e' || fmt[i] == 'u') |
---|
| 291 | match_rtx (XEXP (x, i), &link, fail_label); |
---|
| 292 | else if (fmt[i] == 'E') |
---|
| 293 | { |
---|
| 294 | int j; |
---|
| 295 | printf (" if (XVECLEN (x, %d) != %d) goto L%d;\n", |
---|
| 296 | i, XVECLEN (x, i), fail_label); |
---|
| 297 | for (j = 0; j < XVECLEN (x, i); j++) |
---|
| 298 | { |
---|
| 299 | link.vecelt = j; |
---|
| 300 | match_rtx (XVECEXP (x, i, j), &link, fail_label); |
---|
| 301 | } |
---|
| 302 | } |
---|
| 303 | else if (fmt[i] == 'i') |
---|
| 304 | { |
---|
| 305 | /* Make sure that at run time `x' is the RTX we want to test. */ |
---|
| 306 | if (i != 0) |
---|
| 307 | { |
---|
| 308 | printf (" x = "); |
---|
| 309 | print_path (path); |
---|
| 310 | printf (";\n"); |
---|
| 311 | } |
---|
| 312 | |
---|
| 313 | printf (" if (XINT (x, %d) != %d) goto L%d;\n", |
---|
| 314 | i, XINT (x, i), fail_label); |
---|
| 315 | } |
---|
| 316 | else if (fmt[i] == 'w') |
---|
| 317 | { |
---|
| 318 | /* Make sure that at run time `x' is the RTX we want to test. */ |
---|
| 319 | if (i != 0) |
---|
| 320 | { |
---|
| 321 | printf (" x = "); |
---|
| 322 | print_path (path); |
---|
| 323 | printf (";\n"); |
---|
| 324 | } |
---|
| 325 | |
---|
| 326 | #if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_INT |
---|
| 327 | printf (" if (XWINT (x, %d) != %d) goto L%d;\n", |
---|
| 328 | i, XWINT (x, i), fail_label); |
---|
| 329 | #else |
---|
| 330 | printf (" if (XWINT (x, %d) != %ld) goto L%d;\n", |
---|
| 331 | i, XWINT (x, i), fail_label); |
---|
| 332 | #endif |
---|
| 333 | } |
---|
| 334 | else if (fmt[i] == 's') |
---|
| 335 | { |
---|
| 336 | /* Make sure that at run time `x' is the RTX we want to test. */ |
---|
| 337 | if (i != 0) |
---|
| 338 | { |
---|
| 339 | printf (" x = "); |
---|
| 340 | print_path (path); |
---|
| 341 | printf (";\n"); |
---|
| 342 | } |
---|
| 343 | |
---|
| 344 | printf (" if (strcmp (XSTR (x, %d), \"%s\")) goto L%d;\n", |
---|
| 345 | i, XSTR (x, i), fail_label); |
---|
| 346 | } |
---|
| 347 | } |
---|
| 348 | } |
---|
| 349 | |
---|
| 350 | /* Given a PATH, representing a path down the instruction's |
---|
| 351 | pattern from the root to a certain point, output code to |
---|
| 352 | evaluate to the rtx at that point. */ |
---|
| 353 | |
---|
| 354 | static void |
---|
| 355 | print_path (path) |
---|
| 356 | struct link *path; |
---|
| 357 | { |
---|
| 358 | if (path == 0) |
---|
| 359 | printf ("pat"); |
---|
| 360 | else if (path->vecelt >= 0) |
---|
| 361 | { |
---|
| 362 | printf ("XVECEXP ("); |
---|
| 363 | print_path (path->next); |
---|
| 364 | printf (", %d, %d)", path->pos, path->vecelt); |
---|
| 365 | } |
---|
| 366 | else |
---|
| 367 | { |
---|
| 368 | printf ("XEXP ("); |
---|
| 369 | print_path (path->next); |
---|
| 370 | printf (", %d)", path->pos); |
---|
| 371 | } |
---|
| 372 | } |
---|
| 373 | |
---|
| 374 | static void |
---|
| 375 | print_code (code) |
---|
| 376 | RTX_CODE code; |
---|
| 377 | { |
---|
| 378 | register char *p1; |
---|
| 379 | for (p1 = GET_RTX_NAME (code); *p1; p1++) |
---|
| 380 | { |
---|
| 381 | if (*p1 >= 'a' && *p1 <= 'z') |
---|
| 382 | putchar (*p1 + 'A' - 'a'); |
---|
| 383 | else |
---|
| 384 | putchar (*p1); |
---|
| 385 | } |
---|
| 386 | } |
---|
| 387 | |
---|
| 388 | char * |
---|
| 389 | xmalloc (size) |
---|
| 390 | unsigned size; |
---|
| 391 | { |
---|
| 392 | register char *val = (char *) malloc (size); |
---|
| 393 | |
---|
| 394 | if (val == 0) |
---|
| 395 | fatal ("virtual memory exhausted"); |
---|
| 396 | return val; |
---|
| 397 | } |
---|
| 398 | |
---|
| 399 | char * |
---|
| 400 | xrealloc (ptr, size) |
---|
| 401 | char *ptr; |
---|
| 402 | unsigned size; |
---|
| 403 | { |
---|
| 404 | char *result = (char *) realloc (ptr, size); |
---|
| 405 | if (!result) |
---|
| 406 | fatal ("virtual memory exhausted"); |
---|
| 407 | return result; |
---|
| 408 | } |
---|
| 409 | |
---|
| 410 | static void |
---|
| 411 | fatal (s, a1, a2) |
---|
| 412 | char *s; |
---|
| 413 | { |
---|
| 414 | fprintf (stderr, "genpeep: "); |
---|
| 415 | fprintf (stderr, s, a1, a2); |
---|
| 416 | fprintf (stderr, "\n"); |
---|
| 417 | exit (FATAL_EXIT_CODE); |
---|
| 418 | } |
---|
| 419 | |
---|
| 420 | /* More 'friendly' abort that prints the line and file. |
---|
| 421 | config.h can #define abort fancy_abort if you like that sort of thing. */ |
---|
| 422 | |
---|
| 423 | void |
---|
| 424 | fancy_abort () |
---|
| 425 | { |
---|
| 426 | fatal ("Internal gcc abort."); |
---|
| 427 | } |
---|
| 428 | |
---|
| 429 | int |
---|
| 430 | main (argc, argv) |
---|
| 431 | int argc; |
---|
| 432 | char **argv; |
---|
| 433 | { |
---|
| 434 | rtx desc; |
---|
| 435 | FILE *infile; |
---|
| 436 | register int c; |
---|
| 437 | |
---|
| 438 | max_opno = -1; |
---|
| 439 | |
---|
| 440 | obstack_init (rtl_obstack); |
---|
| 441 | |
---|
| 442 | if (argc <= 1) |
---|
| 443 | fatal ("No input file name."); |
---|
| 444 | |
---|
| 445 | infile = fopen (argv[1], "r"); |
---|
| 446 | if (infile == 0) |
---|
| 447 | { |
---|
| 448 | perror (argv[1]); |
---|
| 449 | exit (FATAL_EXIT_CODE); |
---|
| 450 | } |
---|
| 451 | |
---|
| 452 | init_rtl (); |
---|
| 453 | |
---|
| 454 | printf ("/* Generated automatically by the program `genpeep'\n\ |
---|
| 455 | from the machine description file `md'. */\n\n"); |
---|
| 456 | |
---|
| 457 | printf ("#include \"config.h\"\n"); |
---|
| 458 | printf ("#include \"rtl.h\"\n"); |
---|
| 459 | printf ("#include \"regs.h\"\n"); |
---|
| 460 | printf ("#include \"output.h\"\n"); |
---|
| 461 | printf ("#include \"real.h\"\n\n"); |
---|
| 462 | |
---|
| 463 | printf ("extern rtx peep_operand[];\n\n"); |
---|
| 464 | printf ("#define operands peep_operand\n\n"); |
---|
| 465 | |
---|
| 466 | printf ("rtx\npeephole (ins1)\n rtx ins1;\n{\n"); |
---|
| 467 | printf (" rtx insn, x, pat;\n"); |
---|
| 468 | printf (" int i;\n\n"); |
---|
| 469 | |
---|
| 470 | /* Early out: no peepholes for insns followed by barriers. */ |
---|
| 471 | printf (" if (NEXT_INSN (ins1)\n"); |
---|
| 472 | printf (" && GET_CODE (NEXT_INSN (ins1)) == BARRIER)\n"); |
---|
| 473 | printf (" return 0;\n\n"); |
---|
| 474 | |
---|
| 475 | /* Read the machine description. */ |
---|
| 476 | |
---|
| 477 | while (1) |
---|
| 478 | { |
---|
| 479 | c = read_skip_spaces (infile); |
---|
| 480 | if (c == EOF) |
---|
| 481 | break; |
---|
| 482 | ungetc (c, infile); |
---|
| 483 | |
---|
| 484 | desc = read_rtx (infile); |
---|
| 485 | if (GET_CODE (desc) == DEFINE_PEEPHOLE) |
---|
| 486 | { |
---|
| 487 | gen_peephole (desc); |
---|
| 488 | insn_code_number++; |
---|
| 489 | } |
---|
| 490 | if (GET_CODE (desc) == DEFINE_INSN |
---|
| 491 | || GET_CODE (desc) == DEFINE_EXPAND |
---|
| 492 | || GET_CODE (desc) == DEFINE_SPLIT) |
---|
| 493 | { |
---|
| 494 | insn_code_number++; |
---|
| 495 | } |
---|
| 496 | } |
---|
| 497 | |
---|
| 498 | printf (" return 0;\n}\n\n"); |
---|
| 499 | |
---|
| 500 | if (max_opno == -1) |
---|
| 501 | max_opno = 1; |
---|
| 502 | |
---|
| 503 | printf ("rtx peep_operand[%d];\n", max_opno + 1); |
---|
| 504 | |
---|
| 505 | fflush (stdout); |
---|
| 506 | exit (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE); |
---|
| 507 | /* NOTREACHED */ |
---|
| 508 | return 0; |
---|
| 509 | } |
---|