Mercurial > hg > CbC > CbC_gcc
annotate gcc/genmodes.c @ 67:f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
| author | nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> |
|---|---|
| date | Tue, 22 Mar 2011 17:18:12 +0900 |
| parents | 77e2b8dfacca |
| children | 04ced10e8804 |
| rev | line source |
|---|---|
| 0 | 1 /* Generate the machine mode enumeration and associated tables. |
|
67
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2 Copyright (C) 2003, 2004, 2005, 2006, 2007, 2010 |
| 0 | 3 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 #include "bconfig.h" | |
| 22 #include "system.h" | |
| 23 #include "errors.h" | |
| 24 #include "hashtab.h" | |
| 25 | |
| 26 /* enum mode_class is normally defined by machmode.h but we can't | |
| 27 include that header here. */ | |
| 28 #include "mode-classes.def" | |
| 29 | |
| 30 #define DEF_MODE_CLASS(M) M | |
| 31 enum mode_class { MODE_CLASSES, MAX_MODE_CLASS }; | |
| 32 #undef DEF_MODE_CLASS | |
| 33 | |
| 34 /* Text names of mode classes, for output. */ | |
| 35 #define DEF_MODE_CLASS(M) #M | |
| 36 static const char *const mode_class_names[MAX_MODE_CLASS] = | |
| 37 { | |
| 38 MODE_CLASSES | |
| 39 }; | |
| 40 #undef DEF_MODE_CLASS | |
| 41 #undef MODE_CLASSES | |
| 42 | |
| 43 #ifdef EXTRA_MODES_FILE | |
| 44 # define HAVE_EXTRA_MODES 1 | |
| 45 #else | |
| 46 # define HAVE_EXTRA_MODES 0 | |
| 47 # define EXTRA_MODES_FILE "" | |
| 48 #endif | |
| 49 | |
| 50 /* Data structure for building up what we know about a mode. | |
| 51 They're clustered by mode class. */ | |
| 52 struct mode_data | |
| 53 { | |
| 54 struct mode_data *next; /* next this class - arbitrary order */ | |
| 55 | |
| 56 const char *name; /* printable mode name -- SI, not SImode */ | |
| 57 enum mode_class cl; /* this mode class */ | |
| 58 unsigned int precision; /* size in bits, equiv to TYPE_PRECISION */ | |
| 59 unsigned int bytesize; /* storage size in addressable units */ | |
| 60 unsigned int ncomponents; /* number of subunits */ | |
| 61 unsigned int alignment; /* mode alignment */ | |
| 62 const char *format; /* floating point format - float modes only */ | |
| 63 | |
| 64 struct mode_data *component; /* mode of components */ | |
| 65 struct mode_data *wider; /* next wider mode */ | |
| 66 struct mode_data *wider_2x; /* 2x wider mode */ | |
| 67 | |
| 68 struct mode_data *contained; /* Pointer to list of modes that have | |
| 69 this mode as a component. */ | |
| 70 struct mode_data *next_cont; /* Next mode in that list. */ | |
| 71 | |
| 72 const char *file; /* file and line of definition, */ | |
| 73 unsigned int line; /* for error reporting */ | |
| 74 unsigned int counter; /* Rank ordering of modes */ | |
| 75 unsigned int ibit; /* the number of integral bits */ | |
| 76 unsigned int fbit; /* the number of fractional bits */ | |
| 77 }; | |
| 78 | |
| 79 static struct mode_data *modes[MAX_MODE_CLASS]; | |
| 80 static unsigned int n_modes[MAX_MODE_CLASS]; | |
| 81 static struct mode_data *void_mode; | |
| 82 | |
| 83 static const struct mode_data blank_mode = { | |
| 84 0, "<unknown>", MAX_MODE_CLASS, | |
| 85 -1U, -1U, -1U, -1U, | |
| 86 0, 0, 0, 0, 0, 0, | |
| 87 "<unknown>", 0, 0, 0, 0 | |
| 88 }; | |
| 89 | |
| 90 static htab_t modes_by_name; | |
| 91 | |
| 92 /* Data structure for recording target-specified runtime adjustments | |
| 93 to a particular mode. We support varying the byte size, the | |
| 94 alignment, and the floating point format. */ | |
| 95 struct mode_adjust | |
| 96 { | |
| 97 struct mode_adjust *next; | |
| 98 struct mode_data *mode; | |
| 99 const char *adjustment; | |
| 100 | |
| 101 const char *file; | |
| 102 unsigned int line; | |
| 103 }; | |
| 104 | |
| 105 static struct mode_adjust *adj_bytesize; | |
| 106 static struct mode_adjust *adj_alignment; | |
| 107 static struct mode_adjust *adj_format; | |
| 108 static struct mode_adjust *adj_ibit; | |
| 109 static struct mode_adjust *adj_fbit; | |
| 110 | |
| 111 /* Mode class operations. */ | |
| 112 static enum mode_class | |
| 113 complex_class (enum mode_class c) | |
| 114 { | |
| 115 switch (c) | |
| 116 { | |
| 117 case MODE_INT: return MODE_COMPLEX_INT; | |
| 118 case MODE_FLOAT: return MODE_COMPLEX_FLOAT; | |
| 119 default: | |
| 120 error ("no complex class for class %s", mode_class_names[c]); | |
| 121 return MODE_RANDOM; | |
| 122 } | |
| 123 } | |
| 124 | |
| 125 static enum mode_class | |
| 126 vector_class (enum mode_class cl) | |
| 127 { | |
| 128 switch (cl) | |
| 129 { | |
| 130 case MODE_INT: return MODE_VECTOR_INT; | |
| 131 case MODE_FLOAT: return MODE_VECTOR_FLOAT; | |
| 132 case MODE_FRACT: return MODE_VECTOR_FRACT; | |
| 133 case MODE_UFRACT: return MODE_VECTOR_UFRACT; | |
| 134 case MODE_ACCUM: return MODE_VECTOR_ACCUM; | |
| 135 case MODE_UACCUM: return MODE_VECTOR_UACCUM; | |
| 136 default: | |
| 137 error ("no vector class for class %s", mode_class_names[cl]); | |
| 138 return MODE_RANDOM; | |
| 139 } | |
| 140 } | |
| 141 | |
| 142 /* Utility routines. */ | |
| 143 static inline struct mode_data * | |
| 144 find_mode (const char *name) | |
| 145 { | |
| 146 struct mode_data key; | |
| 147 | |
| 148 key.name = name; | |
| 149 return (struct mode_data *) htab_find (modes_by_name, &key); | |
| 150 } | |
| 151 | |
| 152 static struct mode_data * | |
| 153 new_mode (enum mode_class cl, const char *name, | |
| 154 const char *file, unsigned int line) | |
| 155 { | |
| 156 struct mode_data *m; | |
| 157 static unsigned int count = 0; | |
| 158 | |
| 159 m = find_mode (name); | |
| 160 if (m) | |
| 161 { | |
| 162 error ("%s:%d: duplicate definition of mode \"%s\"", | |
| 163 trim_filename (file), line, name); | |
| 164 error ("%s:%d: previous definition here", m->file, m->line); | |
| 165 return m; | |
| 166 } | |
| 167 | |
| 168 m = XNEW (struct mode_data); | |
| 169 memcpy (m, &blank_mode, sizeof (struct mode_data)); | |
| 170 m->cl = cl; | |
| 171 m->name = name; | |
| 172 if (file) | |
| 173 m->file = trim_filename (file); | |
| 174 m->line = line; | |
| 175 m->counter = count++; | |
| 176 | |
| 177 m->next = modes[cl]; | |
| 178 modes[cl] = m; | |
| 179 n_modes[cl]++; | |
| 180 | |
| 181 *htab_find_slot (modes_by_name, m, INSERT) = m; | |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
182 |
| 0 | 183 return m; |
| 184 } | |
| 185 | |
| 186 static hashval_t | |
| 187 hash_mode (const void *p) | |
| 188 { | |
| 189 const struct mode_data *m = (const struct mode_data *)p; | |
| 190 return htab_hash_string (m->name); | |
| 191 } | |
| 192 | |
| 193 static int | |
| 194 eq_mode (const void *p, const void *q) | |
| 195 { | |
| 196 const struct mode_data *a = (const struct mode_data *)p; | |
| 197 const struct mode_data *b = (const struct mode_data *)q; | |
| 198 | |
| 199 return !strcmp (a->name, b->name); | |
| 200 } | |
| 201 | |
| 202 #define for_all_modes(C, M) \ | |
| 203 for (C = 0; C < MAX_MODE_CLASS; C++) \ | |
| 204 for (M = modes[C]; M; M = M->next) | |
| 205 | |
| 206 static void ATTRIBUTE_UNUSED | |
| 207 new_adjust (const char *name, | |
| 208 struct mode_adjust **category, const char *catname, | |
| 209 const char *adjustment, | |
| 210 enum mode_class required_class_from, | |
| 211 enum mode_class required_class_to, | |
| 212 const char *file, unsigned int line) | |
| 213 { | |
| 214 struct mode_data *mode = find_mode (name); | |
| 215 struct mode_adjust *a; | |
| 216 | |
| 217 file = trim_filename (file); | |
| 218 | |
| 219 if (!mode) | |
| 220 { | |
| 221 error ("%s:%d: no mode \"%s\"", file, line, name); | |
| 222 return; | |
| 223 } | |
| 224 | |
| 225 if (required_class_from != MODE_RANDOM | |
| 226 && (mode->cl < required_class_from || mode->cl > required_class_to)) | |
| 227 { | |
| 228 error ("%s:%d: mode \"%s\" is not among class {%s, %s}", | |
| 229 file, line, name, mode_class_names[required_class_from] + 5, | |
| 230 mode_class_names[required_class_to] + 5); | |
| 231 return; | |
| 232 } | |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
233 |
| 0 | 234 for (a = *category; a; a = a->next) |
| 235 if (a->mode == mode) | |
| 236 { | |
| 237 error ("%s:%d: mode \"%s\" already has a %s adjustment", | |
| 238 file, line, name, catname); | |
| 239 error ("%s:%d: previous adjustment here", a->file, a->line); | |
| 240 return; | |
| 241 } | |
| 242 | |
| 243 a = XNEW (struct mode_adjust); | |
| 244 a->mode = mode; | |
| 245 a->adjustment = adjustment; | |
| 246 a->file = file; | |
| 247 a->line = line; | |
| 248 | |
| 249 a->next = *category; | |
| 250 *category = a; | |
| 251 } | |
| 252 | |
| 253 /* Diagnose failure to meet expectations in a partially filled out | |
| 254 mode structure. */ | |
| 255 enum requirement { SET, UNSET, OPTIONAL }; | |
| 256 | |
| 257 #define validate_field_(mname, fname, req, val, unset, file, line) do { \ | |
| 258 switch (req) \ | |
| 259 { \ | |
| 260 case SET: \ | |
| 261 if (val == unset) \ | |
| 262 error ("%s:%d: (%s) field %s must be set", \ | |
| 263 file, line, mname, fname); \ | |
| 264 break; \ | |
| 265 case UNSET: \ | |
| 266 if (val != unset) \ | |
| 267 error ("%s:%d: (%s) field %s must not be set", \ | |
| 268 file, line, mname, fname); \ | |
| 269 case OPTIONAL: \ | |
| 270 break; \ | |
| 271 } \ | |
| 272 } while (0) | |
| 273 | |
| 274 #define validate_field(M, F) \ | |
| 275 validate_field_(M->name, #F, r_##F, M->F, blank_mode.F, M->file, M->line) | |
| 276 | |
| 277 static void | |
| 278 validate_mode (struct mode_data *m, | |
| 279 enum requirement r_precision, | |
| 280 enum requirement r_bytesize, | |
| 281 enum requirement r_component, | |
| 282 enum requirement r_ncomponents, | |
| 283 enum requirement r_format) | |
| 284 { | |
| 285 validate_field (m, precision); | |
| 286 validate_field (m, bytesize); | |
| 287 validate_field (m, component); | |
| 288 validate_field (m, ncomponents); | |
| 289 validate_field (m, format); | |
| 290 } | |
| 291 #undef validate_field | |
| 292 #undef validate_field_ | |
| 293 | |
| 294 /* Given a partially-filled-out mode structure, figure out what we can | |
| 295 and fill the rest of it in; die if it isn't enough. */ | |
| 296 static void | |
| 297 complete_mode (struct mode_data *m) | |
| 298 { | |
| 299 unsigned int alignment; | |
| 300 | |
| 301 if (!m->name) | |
| 302 { | |
| 303 error ("%s:%d: mode with no name", m->file, m->line); | |
| 304 return; | |
| 305 } | |
| 306 if (m->cl == MAX_MODE_CLASS) | |
| 307 { | |
| 308 error ("%s:%d: %smode has no mode class", m->file, m->line, m->name); | |
| 309 return; | |
| 310 } | |
| 311 | |
| 312 switch (m->cl) | |
| 313 { | |
| 314 case MODE_RANDOM: | |
| 315 /* Nothing more need be said. */ | |
| 316 if (!strcmp (m->name, "VOID")) | |
| 317 void_mode = m; | |
| 318 | |
| 319 validate_mode (m, UNSET, UNSET, UNSET, UNSET, UNSET); | |
| 320 | |
| 321 m->precision = 0; | |
| 322 m->bytesize = 0; | |
| 323 m->ncomponents = 0; | |
| 324 m->component = 0; | |
| 325 break; | |
| 326 | |
| 327 case MODE_CC: | |
| 328 /* Again, nothing more need be said. For historical reasons, | |
| 329 the size of a CC mode is four units. */ | |
| 330 validate_mode (m, UNSET, UNSET, UNSET, UNSET, UNSET); | |
| 331 | |
| 332 m->bytesize = 4; | |
| 333 m->ncomponents = 1; | |
| 334 m->component = 0; | |
| 335 break; | |
| 336 | |
| 337 case MODE_INT: | |
| 338 case MODE_FLOAT: | |
| 339 case MODE_DECIMAL_FLOAT: | |
| 340 case MODE_FRACT: | |
| 341 case MODE_UFRACT: | |
| 342 case MODE_ACCUM: | |
| 343 case MODE_UACCUM: | |
| 344 /* A scalar mode must have a byte size, may have a bit size, | |
| 345 and must not have components. A float mode must have a | |
| 346 format. */ | |
| 347 validate_mode (m, OPTIONAL, SET, UNSET, UNSET, | |
| 348 (m->cl == MODE_FLOAT || m->cl == MODE_DECIMAL_FLOAT) | |
| 349 ? SET : UNSET); | |
| 350 | |
| 351 m->ncomponents = 1; | |
| 352 m->component = 0; | |
| 353 break; | |
| 354 | |
| 355 case MODE_PARTIAL_INT: | |
| 356 /* A partial integer mode uses ->component to say what the | |
| 357 corresponding full-size integer mode is, and may also | |
| 358 specify a bit size. */ | |
| 359 validate_mode (m, OPTIONAL, UNSET, SET, UNSET, UNSET); | |
| 360 | |
| 361 m->bytesize = m->component->bytesize; | |
| 362 | |
| 363 m->ncomponents = 1; | |
| 364 m->component = 0; /* ??? preserve this */ | |
| 365 break; | |
| 366 | |
| 367 case MODE_COMPLEX_INT: | |
| 368 case MODE_COMPLEX_FLOAT: | |
| 369 /* Complex modes should have a component indicated, but no more. */ | |
| 370 validate_mode (m, UNSET, UNSET, SET, UNSET, UNSET); | |
| 371 m->ncomponents = 2; | |
| 372 if (m->component->precision != (unsigned int)-1) | |
| 373 m->precision = 2 * m->component->precision; | |
| 374 m->bytesize = 2 * m->component->bytesize; | |
| 375 break; | |
| 376 | |
| 377 case MODE_VECTOR_INT: | |
| 378 case MODE_VECTOR_FLOAT: | |
| 379 case MODE_VECTOR_FRACT: | |
| 380 case MODE_VECTOR_UFRACT: | |
| 381 case MODE_VECTOR_ACCUM: | |
| 382 case MODE_VECTOR_UACCUM: | |
| 383 /* Vector modes should have a component and a number of components. */ | |
| 384 validate_mode (m, UNSET, UNSET, SET, SET, UNSET); | |
| 385 if (m->component->precision != (unsigned int)-1) | |
| 386 m->precision = m->ncomponents * m->component->precision; | |
| 387 m->bytesize = m->ncomponents * m->component->bytesize; | |
| 388 break; | |
| 389 | |
| 390 default: | |
| 391 gcc_unreachable (); | |
| 392 } | |
| 393 | |
| 394 /* If not already specified, the mode alignment defaults to the largest | |
| 395 power of two that divides the size of the object. Complex types are | |
| 396 not more aligned than their contents. */ | |
| 397 if (m->cl == MODE_COMPLEX_INT || m->cl == MODE_COMPLEX_FLOAT) | |
| 398 alignment = m->component->bytesize; | |
| 399 else | |
| 400 alignment = m->bytesize; | |
| 401 | |
| 402 m->alignment = alignment & (~alignment + 1); | |
| 403 | |
| 404 /* If this mode has components, make the component mode point back | |
| 405 to this mode, for the sake of adjustments. */ | |
| 406 if (m->component) | |
| 407 { | |
| 408 m->next_cont = m->component->contained; | |
| 409 m->component->contained = m; | |
| 410 } | |
| 411 } | |
| 412 | |
| 413 static void | |
| 414 complete_all_modes (void) | |
| 415 { | |
| 416 struct mode_data *m; | |
| 417 int cl; | |
| 418 | |
| 419 for_all_modes (cl, m) | |
| 420 complete_mode (m); | |
| 421 } | |
| 422 | |
| 423 /* For each mode in class CLASS, construct a corresponding complex mode. */ | |
| 424 #define COMPLEX_MODES(C) make_complex_modes(MODE_##C, __FILE__, __LINE__) | |
| 425 static void | |
| 426 make_complex_modes (enum mode_class cl, | |
| 427 const char *file, unsigned int line) | |
| 428 { | |
| 429 struct mode_data *m; | |
| 430 struct mode_data *c; | |
| 431 char buf[8]; | |
| 432 enum mode_class cclass = complex_class (cl); | |
| 433 | |
| 434 if (cclass == MODE_RANDOM) | |
| 435 return; | |
| 436 | |
| 437 for (m = modes[cl]; m; m = m->next) | |
| 438 { | |
| 439 /* Skip BImode. FIXME: BImode probably shouldn't be MODE_INT. */ | |
| 440 if (m->precision == 1) | |
| 441 continue; | |
| 442 | |
| 443 if (strlen (m->name) >= sizeof buf) | |
| 444 { | |
| 445 error ("%s:%d:mode name \"%s\" is too long", | |
| 446 m->file, m->line, m->name); | |
| 447 continue; | |
| 448 } | |
| 449 | |
| 450 /* Float complex modes are named SCmode, etc. | |
| 451 Int complex modes are named CSImode, etc. | |
| 452 This inconsistency should be eliminated. */ | |
| 453 if (cl == MODE_FLOAT) | |
| 454 { | |
| 455 char *p, *q = 0; | |
| 456 strncpy (buf, m->name, sizeof buf); | |
| 457 p = strchr (buf, 'F'); | |
| 458 if (p == 0) | |
| 459 q = strchr (buf, 'D'); | |
| 460 if (p == 0 && q == 0) | |
| 461 { | |
| 462 error ("%s:%d: float mode \"%s\" has no 'F' or 'D'", | |
| 463 m->file, m->line, m->name); | |
| 464 continue; | |
| 465 } | |
| 466 | |
| 467 if (p != 0) | |
| 468 *p = 'C'; | |
| 469 else | |
| 470 snprintf (buf, sizeof buf, "C%s", m->name); | |
| 471 } | |
| 472 else | |
| 473 snprintf (buf, sizeof buf, "C%s", m->name); | |
| 474 | |
| 475 c = new_mode (cclass, xstrdup (buf), file, line); | |
| 476 c->component = m; | |
| 477 } | |
| 478 } | |
| 479 | |
| 480 /* For all modes in class CL, construct vector modes of width | |
| 481 WIDTH, having as many components as necessary. */ | |
| 482 #define VECTOR_MODES(C, W) make_vector_modes(MODE_##C, W, __FILE__, __LINE__) | |
| 483 static void ATTRIBUTE_UNUSED | |
| 484 make_vector_modes (enum mode_class cl, unsigned int width, | |
| 485 const char *file, unsigned int line) | |
| 486 { | |
| 487 struct mode_data *m; | |
| 488 struct mode_data *v; | |
| 489 char buf[8]; | |
| 490 unsigned int ncomponents; | |
| 491 enum mode_class vclass = vector_class (cl); | |
| 492 | |
| 493 if (vclass == MODE_RANDOM) | |
| 494 return; | |
| 495 | |
| 496 for (m = modes[cl]; m; m = m->next) | |
| 497 { | |
| 498 /* Do not construct vector modes with only one element, or | |
| 499 vector modes where the element size doesn't divide the full | |
| 500 size evenly. */ | |
| 501 ncomponents = width / m->bytesize; | |
| 502 if (ncomponents < 2) | |
| 503 continue; | |
| 504 if (width % m->bytesize) | |
| 505 continue; | |
| 506 | |
| 507 /* Skip QFmode and BImode. FIXME: this special case should | |
| 508 not be necessary. */ | |
| 509 if (cl == MODE_FLOAT && m->bytesize == 1) | |
| 510 continue; | |
| 511 if (cl == MODE_INT && m->precision == 1) | |
| 512 continue; | |
| 513 | |
| 514 if ((size_t)snprintf (buf, sizeof buf, "V%u%s", ncomponents, m->name) | |
| 515 >= sizeof buf) | |
| 516 { | |
| 517 error ("%s:%d: mode name \"%s\" is too long", | |
| 518 m->file, m->line, m->name); | |
| 519 continue; | |
| 520 } | |
| 521 | |
| 522 v = new_mode (vclass, xstrdup (buf), file, line); | |
| 523 v->component = m; | |
| 524 v->ncomponents = ncomponents; | |
| 525 } | |
| 526 } | |
| 527 | |
| 528 /* Input. */ | |
| 529 | |
| 530 #define _SPECIAL_MODE(C, N) make_special_mode(MODE_##C, #N, __FILE__, __LINE__) | |
| 531 #define RANDOM_MODE(N) _SPECIAL_MODE (RANDOM, N) | |
| 532 #define CC_MODE(N) _SPECIAL_MODE (CC, N) | |
| 533 | |
| 534 static void | |
| 535 make_special_mode (enum mode_class cl, const char *name, | |
| 536 const char *file, unsigned int line) | |
| 537 { | |
| 538 new_mode (cl, name, file, line); | |
| 539 } | |
| 540 | |
| 541 #define INT_MODE(N, Y) FRACTIONAL_INT_MODE (N, -1U, Y) | |
| 542 #define FRACTIONAL_INT_MODE(N, B, Y) \ | |
| 543 make_int_mode (#N, B, Y, __FILE__, __LINE__) | |
| 544 | |
| 545 static void | |
| 546 make_int_mode (const char *name, | |
| 547 unsigned int precision, unsigned int bytesize, | |
| 548 const char *file, unsigned int line) | |
| 549 { | |
| 550 struct mode_data *m = new_mode (MODE_INT, name, file, line); | |
| 551 m->bytesize = bytesize; | |
| 552 m->precision = precision; | |
| 553 } | |
| 554 | |
| 555 #define FRACT_MODE(N, Y, F) \ | |
| 556 make_fixed_point_mode (MODE_FRACT, #N, Y, 0, F, __FILE__, __LINE__) | |
| 557 | |
| 558 #define UFRACT_MODE(N, Y, F) \ | |
| 559 make_fixed_point_mode (MODE_UFRACT, #N, Y, 0, F, __FILE__, __LINE__) | |
| 560 | |
| 561 #define ACCUM_MODE(N, Y, I, F) \ | |
| 562 make_fixed_point_mode (MODE_ACCUM, #N, Y, I, F, __FILE__, __LINE__) | |
| 563 | |
| 564 #define UACCUM_MODE(N, Y, I, F) \ | |
| 565 make_fixed_point_mode (MODE_UACCUM, #N, Y, I, F, __FILE__, __LINE__) | |
| 566 | |
| 567 /* Create a fixed-point mode by setting CL, NAME, BYTESIZE, IBIT, FBIT, | |
| 568 FILE, and LINE. */ | |
| 569 | |
| 570 static void | |
| 571 make_fixed_point_mode (enum mode_class cl, | |
| 572 const char *name, | |
| 573 unsigned int bytesize, | |
| 574 unsigned int ibit, | |
| 575 unsigned int fbit, | |
| 576 const char *file, unsigned int line) | |
| 577 { | |
| 578 struct mode_data *m = new_mode (cl, name, file, line); | |
| 579 m->bytesize = bytesize; | |
| 580 m->ibit = ibit; | |
| 581 m->fbit = fbit; | |
| 582 } | |
| 583 | |
| 584 #define FLOAT_MODE(N, Y, F) FRACTIONAL_FLOAT_MODE (N, -1U, Y, F) | |
| 585 #define FRACTIONAL_FLOAT_MODE(N, B, Y, F) \ | |
| 586 make_float_mode (#N, B, Y, #F, __FILE__, __LINE__) | |
| 587 | |
| 588 static void | |
| 589 make_float_mode (const char *name, | |
| 590 unsigned int precision, unsigned int bytesize, | |
| 591 const char *format, | |
| 592 const char *file, unsigned int line) | |
| 593 { | |
| 594 struct mode_data *m = new_mode (MODE_FLOAT, name, file, line); | |
| 595 m->bytesize = bytesize; | |
| 596 m->precision = precision; | |
| 597 m->format = format; | |
| 598 } | |
| 599 | |
| 600 #define DECIMAL_FLOAT_MODE(N, Y, F) \ | |
| 601 FRACTIONAL_DECIMAL_FLOAT_MODE (N, -1U, Y, F) | |
| 602 #define FRACTIONAL_DECIMAL_FLOAT_MODE(N, B, Y, F) \ | |
| 603 make_decimal_float_mode (#N, B, Y, #F, __FILE__, __LINE__) | |
| 604 | |
| 605 static void | |
| 606 make_decimal_float_mode (const char *name, | |
| 607 unsigned int precision, unsigned int bytesize, | |
| 608 const char *format, | |
| 609 const char *file, unsigned int line) | |
| 610 { | |
| 611 struct mode_data *m = new_mode (MODE_DECIMAL_FLOAT, name, file, line); | |
| 612 m->bytesize = bytesize; | |
| 613 m->precision = precision; | |
| 614 m->format = format; | |
| 615 } | |
| 616 | |
| 617 #define RESET_FLOAT_FORMAT(N, F) \ | |
| 618 reset_float_format (#N, #F, __FILE__, __LINE__) | |
| 619 static void ATTRIBUTE_UNUSED | |
| 620 reset_float_format (const char *name, const char *format, | |
| 621 const char *file, unsigned int line) | |
| 622 { | |
| 623 struct mode_data *m = find_mode (name); | |
| 624 if (!m) | |
| 625 { | |
| 626 error ("%s:%d: no mode \"%s\"", file, line, name); | |
| 627 return; | |
| 628 } | |
| 629 if (m->cl != MODE_FLOAT && m->cl != MODE_DECIMAL_FLOAT) | |
| 630 { | |
| 631 error ("%s:%d: mode \"%s\" is not a FLOAT class", file, line, name); | |
| 632 return; | |
| 633 } | |
| 634 m->format = format; | |
| 635 } | |
| 636 | |
| 637 /* Partial integer modes are specified by relation to a full integer mode. | |
| 638 For now, we do not attempt to narrow down their bit sizes. */ | |
| 639 #define PARTIAL_INT_MODE(M) \ | |
| 640 make_partial_integer_mode (#M, "P" #M, -1U, __FILE__, __LINE__) | |
| 641 static void ATTRIBUTE_UNUSED | |
| 642 make_partial_integer_mode (const char *base, const char *name, | |
| 643 unsigned int precision, | |
| 644 const char *file, unsigned int line) | |
| 645 { | |
| 646 struct mode_data *m; | |
| 647 struct mode_data *component = find_mode (base); | |
| 648 if (!component) | |
| 649 { | |
| 650 error ("%s:%d: no mode \"%s\"", file, line, name); | |
| 651 return; | |
| 652 } | |
| 653 if (component->cl != MODE_INT) | |
| 654 { | |
| 655 error ("%s:%d: mode \"%s\" is not class INT", file, line, name); | |
| 656 return; | |
| 657 } | |
| 658 | |
| 659 m = new_mode (MODE_PARTIAL_INT, name, file, line); | |
| 660 m->precision = precision; | |
| 661 m->component = component; | |
| 662 } | |
| 663 | |
| 664 /* A single vector mode can be specified by naming its component | |
| 665 mode and the number of components. */ | |
| 666 #define VECTOR_MODE(C, M, N) \ | |
| 667 make_vector_mode (MODE_##C, #M, N, __FILE__, __LINE__); | |
| 668 static void ATTRIBUTE_UNUSED | |
| 669 make_vector_mode (enum mode_class bclass, | |
| 670 const char *base, | |
| 671 unsigned int ncomponents, | |
| 672 const char *file, unsigned int line) | |
| 673 { | |
| 674 struct mode_data *v; | |
| 675 enum mode_class vclass = vector_class (bclass); | |
| 676 struct mode_data *component = find_mode (base); | |
| 677 char namebuf[8]; | |
| 678 | |
| 679 if (vclass == MODE_RANDOM) | |
| 680 return; | |
| 681 if (component == 0) | |
| 682 { | |
| 683 error ("%s:%d: no mode \"%s\"", file, line, base); | |
| 684 return; | |
| 685 } | |
| 686 if (component->cl != bclass | |
| 687 && (component->cl != MODE_PARTIAL_INT | |
| 688 || bclass != MODE_INT)) | |
| 689 { | |
| 690 error ("%s:%d: mode \"%s\" is not class %s", | |
| 691 file, line, base, mode_class_names[bclass] + 5); | |
| 692 return; | |
| 693 } | |
| 694 | |
| 695 if ((size_t)snprintf (namebuf, sizeof namebuf, "V%u%s", | |
| 696 ncomponents, base) >= sizeof namebuf) | |
| 697 { | |
| 698 error ("%s:%d: mode name \"%s\" is too long", | |
| 699 file, line, base); | |
| 700 return; | |
| 701 } | |
| 702 | |
| 703 v = new_mode (vclass, xstrdup (namebuf), file, line); | |
| 704 v->ncomponents = ncomponents; | |
| 705 v->component = component; | |
| 706 } | |
| 707 | |
| 708 /* Adjustability. */ | |
| 709 #define _ADD_ADJUST(A, M, X, C1, C2) \ | |
| 710 new_adjust (#M, &adj_##A, #A, #X, MODE_##C1, MODE_##C2, __FILE__, __LINE__) | |
| 711 | |
| 712 #define ADJUST_BYTESIZE(M, X) _ADD_ADJUST(bytesize, M, X, RANDOM, RANDOM) | |
| 713 #define ADJUST_ALIGNMENT(M, X) _ADD_ADJUST(alignment, M, X, RANDOM, RANDOM) | |
| 714 #define ADJUST_FLOAT_FORMAT(M, X) _ADD_ADJUST(format, M, X, FLOAT, FLOAT) | |
| 715 #define ADJUST_IBIT(M, X) _ADD_ADJUST(ibit, M, X, ACCUM, UACCUM) | |
| 716 #define ADJUST_FBIT(M, X) _ADD_ADJUST(fbit, M, X, FRACT, UACCUM) | |
| 717 | |
| 718 static void | |
| 719 create_modes (void) | |
| 720 { | |
| 721 #include "machmode.def" | |
| 722 } | |
| 723 | |
| 724 /* Processing. */ | |
| 725 | |
| 726 /* Sort a list of modes into the order needed for the WIDER field: | |
| 727 major sort by precision, minor sort by component precision. | |
| 728 | |
| 729 For instance: | |
| 730 QI < HI < SI < DI < TI | |
| 731 V4QI < V2HI < V8QI < V4HI < V2SI. | |
| 732 | |
| 733 If the precision is not set, sort by the bytesize. A mode with | |
| 734 precision set gets sorted before a mode without precision set, if | |
| 735 they have the same bytesize; this is the right thing because | |
| 736 the precision must always be smaller than the bytesize * BITS_PER_UNIT. | |
| 737 We don't have to do anything special to get this done -- an unset | |
| 738 precision shows up as (unsigned int)-1, i.e. UINT_MAX. */ | |
| 739 static int | |
| 740 cmp_modes (const void *a, const void *b) | |
| 741 { | |
| 742 const struct mode_data *const m = *(const struct mode_data *const*)a; | |
| 743 const struct mode_data *const n = *(const struct mode_data *const*)b; | |
| 744 | |
| 745 if (m->bytesize > n->bytesize) | |
| 746 return 1; | |
| 747 else if (m->bytesize < n->bytesize) | |
| 748 return -1; | |
| 749 | |
| 750 if (m->precision > n->precision) | |
| 751 return 1; | |
| 752 else if (m->precision < n->precision) | |
| 753 return -1; | |
| 754 | |
| 755 if (!m->component && !n->component) | |
| 756 { | |
| 757 if (m->counter < n->counter) | |
| 758 return -1; | |
| 759 else | |
| 760 return 1; | |
| 761 } | |
| 762 | |
| 763 if (m->component->bytesize > n->component->bytesize) | |
| 764 return 1; | |
| 765 else if (m->component->bytesize < n->component->bytesize) | |
| 766 return -1; | |
| 767 | |
| 768 if (m->component->precision > n->component->precision) | |
| 769 return 1; | |
| 770 else if (m->component->precision < n->component->precision) | |
| 771 return -1; | |
| 772 | |
| 773 if (m->counter < n->counter) | |
| 774 return -1; | |
| 775 else | |
| 776 return 1; | |
| 777 } | |
| 778 | |
| 779 static void | |
| 780 calc_wider_mode (void) | |
| 781 { | |
| 782 int c; | |
| 783 struct mode_data *m; | |
| 784 struct mode_data **sortbuf; | |
| 785 unsigned int max_n_modes = 0; | |
| 786 unsigned int i, j; | |
| 787 | |
| 788 for (c = 0; c < MAX_MODE_CLASS; c++) | |
| 789 max_n_modes = MAX (max_n_modes, n_modes[c]); | |
| 790 | |
| 791 /* Allocate max_n_modes + 1 entries to leave room for the extra null | |
| 792 pointer assigned after the qsort call below. */ | |
| 793 sortbuf = (struct mode_data **) alloca ((max_n_modes + 1) * sizeof (struct mode_data *)); | |
| 794 | |
| 795 for (c = 0; c < MAX_MODE_CLASS; c++) | |
| 796 { | |
| 797 /* "wider" is not meaningful for MODE_RANDOM and MODE_CC. | |
| 798 However, we want these in textual order, and we have | |
| 799 precisely the reverse. */ | |
| 800 if (c == MODE_RANDOM || c == MODE_CC) | |
| 801 { | |
| 802 struct mode_data *prev, *next; | |
| 803 | |
| 804 for (prev = 0, m = modes[c]; m; m = next) | |
| 805 { | |
| 806 m->wider = void_mode; | |
| 807 m->wider_2x = void_mode; | |
| 808 | |
| 809 /* this is nreverse */ | |
| 810 next = m->next; | |
| 811 m->next = prev; | |
| 812 prev = m; | |
| 813 } | |
| 814 modes[c] = prev; | |
| 815 } | |
| 816 else | |
| 817 { | |
| 818 if (!modes[c]) | |
| 819 continue; | |
| 820 | |
| 821 for (i = 0, m = modes[c]; m; i++, m = m->next) | |
| 822 sortbuf[i] = m; | |
| 823 | |
| 824 qsort (sortbuf, i, sizeof (struct mode_data *), cmp_modes); | |
| 825 | |
| 826 sortbuf[i] = 0; | |
| 827 for (j = 0; j < i; j++) | |
| 828 sortbuf[j]->next = sortbuf[j]->wider = sortbuf[j + 1]; | |
| 829 | |
| 830 | |
| 831 modes[c] = sortbuf[0]; | |
| 832 } | |
| 833 } | |
| 834 } | |
| 835 | |
| 836 /* Output routines. */ | |
| 837 | |
| 838 #define tagged_printf(FMT, ARG, TAG) do { \ | |
| 839 int count_ = printf (" " FMT ",", ARG); \ | |
| 840 printf ("%*s/* %s */\n", 27 - count_, "", TAG); \ | |
| 841 } while (0) | |
| 842 | |
| 843 #define print_decl(TYPE, NAME, ASIZE) \ | |
| 844 puts ("\nconst " TYPE " " NAME "[" ASIZE "] =\n{"); | |
| 845 | |
| 846 #define print_maybe_const_decl(TYPE, NAME, ASIZE, CATEGORY) \ | |
| 847 printf ("\n" TYPE " " NAME "[" ASIZE "] = \n{\n", \ | |
| 848 adj_##CATEGORY ? "" : "const ") | |
| 849 | |
| 850 #define print_closer() puts ("};") | |
| 851 | |
| 852 static void | |
| 853 emit_insn_modes_h (void) | |
| 854 { | |
| 855 int c; | |
| 856 struct mode_data *m, *first, *last; | |
| 857 | |
| 858 printf ("/* Generated automatically from machmode.def%s%s\n", | |
| 859 HAVE_EXTRA_MODES ? " and " : "", | |
| 860 EXTRA_MODES_FILE); | |
| 861 | |
| 862 puts ("\ | |
| 863 by genmodes. */\n\ | |
| 864 \n\ | |
| 865 #ifndef GCC_INSN_MODES_H\n\ | |
| 866 #define GCC_INSN_MODES_H\n\ | |
| 867 \n\ | |
| 868 enum machine_mode\n{"); | |
| 869 | |
| 870 for (c = 0; c < MAX_MODE_CLASS; c++) | |
| 871 for (m = modes[c]; m; m = m->next) | |
| 872 { | |
| 873 int count_ = printf (" %smode,", m->name); | |
| 874 printf ("%*s/* %s:%d */\n", 27 - count_, "", | |
| 875 trim_filename (m->file), m->line); | |
| 876 } | |
| 877 | |
| 878 puts (" MAX_MACHINE_MODE,\n"); | |
| 879 | |
| 880 for (c = 0; c < MAX_MODE_CLASS; c++) | |
| 881 { | |
| 882 first = modes[c]; | |
| 883 last = 0; | |
| 884 for (m = first; m; last = m, m = m->next) | |
| 885 ; | |
| 886 | |
| 887 /* Don't use BImode for MIN_MODE_INT, since otherwise the middle | |
| 888 end will try to use it for bitfields in structures and the | |
| 889 like, which we do not want. Only the target md file should | |
| 890 generate BImode widgets. */ | |
| 891 if (first && first->precision == 1) | |
| 892 first = first->next; | |
| 893 | |
| 894 if (first && last) | |
| 895 printf (" MIN_%s = %smode,\n MAX_%s = %smode,\n\n", | |
| 896 mode_class_names[c], first->name, | |
| 897 mode_class_names[c], last->name); | |
| 898 else | |
| 899 printf (" MIN_%s = %smode,\n MAX_%s = %smode,\n\n", | |
| 900 mode_class_names[c], void_mode->name, | |
| 901 mode_class_names[c], void_mode->name); | |
| 902 } | |
| 903 | |
| 904 puts ("\ | |
| 905 NUM_MACHINE_MODES = MAX_MACHINE_MODE\n\ | |
| 906 };\n"); | |
| 907 | |
| 908 /* I can't think of a better idea, can you? */ | |
| 909 printf ("#define CONST_MODE_SIZE%s\n", adj_bytesize ? "" : " const"); | |
| 910 printf ("#define CONST_MODE_BASE_ALIGN%s\n", adj_alignment ? "" : " const"); | |
| 911 #if 0 /* disabled for backward compatibility, temporary */ | |
| 912 printf ("#define CONST_REAL_FORMAT_FOR_MODE%s\n", adj_format ? "" :" const"); | |
| 913 #endif | |
| 914 printf ("#define CONST_MODE_IBIT%s\n", adj_ibit ? "" : " const"); | |
| 915 printf ("#define CONST_MODE_FBIT%s\n", adj_fbit ? "" : " const"); | |
| 916 puts ("\ | |
| 917 \n\ | |
| 918 #endif /* insn-modes.h */"); | |
| 919 } | |
| 920 | |
| 921 static void | |
| 922 emit_insn_modes_c_header (void) | |
| 923 { | |
| 924 printf ("/* Generated automatically from machmode.def%s%s\n", | |
| 925 HAVE_EXTRA_MODES ? " and " : "", | |
| 926 EXTRA_MODES_FILE); | |
| 927 | |
| 928 puts ("\ | |
| 929 by genmodes. */\n\ | |
| 930 \n\ | |
| 931 #include \"config.h\"\n\ | |
| 932 #include \"system.h\"\n\ | |
| 933 #include \"coretypes.h\"\n\ | |
| 934 #include \"tm.h\"\n\ | |
| 935 #include \"machmode.h\"\n\ | |
| 936 #include \"real.h\""); | |
| 937 } | |
| 938 | |
| 939 static void | |
| 940 emit_min_insn_modes_c_header (void) | |
| 941 { | |
| 942 printf ("/* Generated automatically from machmode.def%s%s\n", | |
| 943 HAVE_EXTRA_MODES ? " and " : "", | |
| 944 EXTRA_MODES_FILE); | |
| 945 | |
| 946 puts ("\ | |
| 947 by genmodes. */\n\ | |
| 948 \n\ | |
| 949 #include \"bconfig.h\"\n\ | |
| 950 #include \"system.h\"\n\ | |
| 951 #include \"machmode.h\""); | |
| 952 } | |
| 953 | |
| 954 static void | |
| 955 emit_mode_name (void) | |
| 956 { | |
| 957 int c; | |
| 958 struct mode_data *m; | |
| 959 | |
| 960 print_decl ("char *const", "mode_name", "NUM_MACHINE_MODES"); | |
| 961 | |
| 962 for_all_modes (c, m) | |
| 963 printf (" \"%s\",\n", m->name); | |
| 964 | |
| 965 print_closer (); | |
| 966 } | |
| 967 | |
| 968 static void | |
| 969 emit_mode_class (void) | |
| 970 { | |
| 971 int c; | |
| 972 struct mode_data *m; | |
| 973 | |
| 974 print_decl ("unsigned char", "mode_class", "NUM_MACHINE_MODES"); | |
| 975 | |
| 976 for_all_modes (c, m) | |
| 977 tagged_printf ("%s", mode_class_names[m->cl], m->name); | |
| 978 | |
| 979 print_closer (); | |
| 980 } | |
| 981 | |
| 982 static void | |
| 983 emit_mode_precision (void) | |
| 984 { | |
| 985 int c; | |
| 986 struct mode_data *m; | |
| 987 | |
| 988 print_decl ("unsigned short", "mode_precision", "NUM_MACHINE_MODES"); | |
| 989 | |
| 990 for_all_modes (c, m) | |
| 991 if (m->precision != (unsigned int)-1) | |
| 992 tagged_printf ("%u", m->precision, m->name); | |
| 993 else | |
| 994 tagged_printf ("%u*BITS_PER_UNIT", m->bytesize, m->name); | |
| 995 | |
| 996 print_closer (); | |
| 997 } | |
| 998 | |
| 999 static void | |
| 1000 emit_mode_size (void) | |
| 1001 { | |
| 1002 int c; | |
| 1003 struct mode_data *m; | |
| 1004 | |
| 1005 print_maybe_const_decl ("%sunsigned char", "mode_size", | |
| 1006 "NUM_MACHINE_MODES", bytesize); | |
| 1007 | |
| 1008 for_all_modes (c, m) | |
| 1009 tagged_printf ("%u", m->bytesize, m->name); | |
| 1010 | |
| 1011 print_closer (); | |
| 1012 } | |
| 1013 | |
| 1014 static void | |
| 1015 emit_mode_nunits (void) | |
| 1016 { | |
| 1017 int c; | |
| 1018 struct mode_data *m; | |
| 1019 | |
| 1020 print_decl ("unsigned char", "mode_nunits", "NUM_MACHINE_MODES"); | |
| 1021 | |
| 1022 for_all_modes (c, m) | |
| 1023 tagged_printf ("%u", m->ncomponents, m->name); | |
| 1024 | |
| 1025 print_closer (); | |
| 1026 } | |
| 1027 | |
| 1028 static void | |
| 1029 emit_mode_wider (void) | |
| 1030 { | |
| 1031 int c; | |
| 1032 struct mode_data *m; | |
| 1033 | |
| 1034 print_decl ("unsigned char", "mode_wider", "NUM_MACHINE_MODES"); | |
| 1035 | |
| 1036 for_all_modes (c, m) | |
| 1037 tagged_printf ("%smode", | |
| 1038 m->wider ? m->wider->name : void_mode->name, | |
| 1039 m->name); | |
| 1040 | |
| 1041 print_closer (); | |
| 1042 print_decl ("unsigned char", "mode_2xwider", "NUM_MACHINE_MODES"); | |
| 1043 | |
| 1044 for_all_modes (c, m) | |
| 1045 { | |
| 1046 struct mode_data * m2; | |
| 1047 | |
| 1048 for (m2 = m; | |
| 1049 m2 && m2 != void_mode; | |
| 1050 m2 = m2->wider) | |
| 1051 { | |
| 1052 if (m2->bytesize < 2 * m->bytesize) | |
| 1053 continue; | |
| 1054 if (m->precision != (unsigned int) -1) | |
| 1055 { | |
| 1056 if (m2->precision != 2 * m->precision) | |
| 1057 continue; | |
| 1058 } | |
| 1059 else | |
| 1060 { | |
| 1061 if (m2->precision != (unsigned int) -1) | |
| 1062 continue; | |
| 1063 } | |
| 1064 | |
| 1065 break; | |
| 1066 } | |
| 1067 if (m2 == void_mode) | |
| 1068 m2 = 0; | |
| 1069 tagged_printf ("%smode", | |
| 1070 m2 ? m2->name : void_mode->name, | |
| 1071 m->name); | |
| 1072 } | |
| 1073 | |
| 1074 print_closer (); | |
| 1075 } | |
| 1076 | |
| 1077 static void | |
| 1078 emit_mode_mask (void) | |
| 1079 { | |
| 1080 int c; | |
| 1081 struct mode_data *m; | |
| 1082 | |
| 1083 print_decl ("unsigned HOST_WIDE_INT", "mode_mask_array", | |
| 1084 "NUM_MACHINE_MODES"); | |
| 1085 puts ("\ | |
| 1086 #define MODE_MASK(m) \\\n\ | |
| 1087 ((m) >= HOST_BITS_PER_WIDE_INT) \\\n\ | |
| 1088 ? ~(unsigned HOST_WIDE_INT) 0 \\\n\ | |
| 1089 : ((unsigned HOST_WIDE_INT) 1 << (m)) - 1\n"); | |
| 1090 | |
| 1091 for_all_modes (c, m) | |
| 1092 if (m->precision != (unsigned int)-1) | |
| 1093 tagged_printf ("MODE_MASK (%u)", m->precision, m->name); | |
| 1094 else | |
| 1095 tagged_printf ("MODE_MASK (%u*BITS_PER_UNIT)", m->bytesize, m->name); | |
| 1096 | |
| 1097 puts ("#undef MODE_MASK"); | |
| 1098 print_closer (); | |
| 1099 } | |
| 1100 | |
| 1101 static void | |
| 1102 emit_mode_inner (void) | |
| 1103 { | |
| 1104 int c; | |
| 1105 struct mode_data *m; | |
| 1106 | |
| 1107 print_decl ("unsigned char", "mode_inner", "NUM_MACHINE_MODES"); | |
| 1108 | |
| 1109 for_all_modes (c, m) | |
| 1110 tagged_printf ("%smode", | |
| 1111 m->component ? m->component->name : void_mode->name, | |
| 1112 m->name); | |
| 1113 | |
| 1114 print_closer (); | |
| 1115 } | |
| 1116 | |
| 1117 static void | |
| 1118 emit_mode_base_align (void) | |
| 1119 { | |
| 1120 int c; | |
| 1121 struct mode_data *m; | |
| 1122 | |
| 1123 print_maybe_const_decl ("%sunsigned char", | |
| 1124 "mode_base_align", "NUM_MACHINE_MODES", | |
| 1125 alignment); | |
| 1126 | |
| 1127 for_all_modes (c, m) | |
| 1128 tagged_printf ("%u", m->alignment, m->name); | |
| 1129 | |
| 1130 print_closer (); | |
| 1131 } | |
| 1132 | |
| 1133 static void | |
| 1134 emit_class_narrowest_mode (void) | |
| 1135 { | |
| 1136 int c; | |
| 1137 | |
| 1138 print_decl ("unsigned char", "class_narrowest_mode", "MAX_MODE_CLASS"); | |
| 1139 | |
| 1140 for (c = 0; c < MAX_MODE_CLASS; c++) | |
| 1141 /* Bleah, all this to get the comment right for MIN_MODE_INT. */ | |
| 1142 tagged_printf ("MIN_%s", mode_class_names[c], | |
| 1143 modes[c] | |
| 1144 ? (modes[c]->precision != 1 | |
| 1145 ? modes[c]->name | |
| 1146 : (modes[c]->next | |
| 1147 ? modes[c]->next->name | |
| 1148 : void_mode->name)) | |
| 1149 : void_mode->name); | |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1150 |
| 0 | 1151 print_closer (); |
| 1152 } | |
| 1153 | |
| 1154 static void | |
| 1155 emit_real_format_for_mode (void) | |
| 1156 { | |
| 1157 struct mode_data *m; | |
| 1158 | |
| 1159 /* The entities pointed to by this table are constant, whether | |
| 1160 or not the table itself is constant. | |
| 1161 | |
| 1162 For backward compatibility this table is always writable | |
|
67
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
1163 (several targets modify it in TARGET_OPTION_OVERRIDE). FIXME: |
| 0 | 1164 convert all said targets to use ADJUST_FORMAT instead. */ |
| 1165 #if 0 | |
| 1166 print_maybe_const_decl ("const struct real_format *%s", | |
| 1167 "real_format_for_mode", | |
| 1168 "MAX_MODE_FLOAT - MIN_MODE_FLOAT + 1", | |
| 1169 format); | |
| 1170 #else | |
| 1171 print_decl ("struct real_format *\n", "real_format_for_mode", | |
| 1172 "MAX_MODE_FLOAT - MIN_MODE_FLOAT + 1 " | |
| 1173 "+ MAX_MODE_DECIMAL_FLOAT - MIN_MODE_DECIMAL_FLOAT + 1"); | |
| 1174 #endif | |
| 1175 | |
| 1176 /* The beginning of the table is entries for float modes. */ | |
| 1177 for (m = modes[MODE_FLOAT]; m; m = m->next) | |
| 1178 if (!strcmp (m->format, "0")) | |
| 1179 tagged_printf ("%s", m->format, m->name); | |
| 1180 else | |
| 1181 tagged_printf ("&%s", m->format, m->name); | |
| 1182 | |
| 1183 /* The end of the table is entries for decimal float modes. */ | |
| 1184 for (m = modes[MODE_DECIMAL_FLOAT]; m; m = m->next) | |
| 1185 if (!strcmp (m->format, "0")) | |
| 1186 tagged_printf ("%s", m->format, m->name); | |
| 1187 else | |
| 1188 tagged_printf ("&%s", m->format, m->name); | |
| 1189 | |
| 1190 print_closer (); | |
| 1191 } | |
| 1192 | |
| 1193 static void | |
| 1194 emit_mode_adjustments (void) | |
| 1195 { | |
| 1196 struct mode_adjust *a; | |
| 1197 struct mode_data *m; | |
| 1198 | |
| 1199 puts ("\ | |
| 1200 \nvoid\ | |
| 1201 \ninit_adjust_machine_modes (void)\ | |
| 1202 \n{\ | |
| 1203 \n size_t s ATTRIBUTE_UNUSED;"); | |
| 1204 | |
| 1205 /* Size adjustments must be propagated to all containing modes. | |
| 1206 A size adjustment forces us to recalculate the alignment too. */ | |
| 1207 for (a = adj_bytesize; a; a = a->next) | |
| 1208 { | |
| 1209 printf ("\n /* %s:%d */\n s = %s;\n", | |
| 1210 a->file, a->line, a->adjustment); | |
| 1211 printf (" mode_size[%smode] = s;\n", a->mode->name); | |
| 1212 printf (" mode_base_align[%smode] = s & (~s + 1);\n", | |
| 1213 a->mode->name); | |
| 1214 | |
| 1215 for (m = a->mode->contained; m; m = m->next_cont) | |
| 1216 { | |
| 1217 switch (m->cl) | |
| 1218 { | |
| 1219 case MODE_COMPLEX_INT: | |
| 1220 case MODE_COMPLEX_FLOAT: | |
| 1221 printf (" mode_size[%smode] = 2*s;\n", m->name); | |
| 1222 printf (" mode_base_align[%smode] = s & (~s + 1);\n", | |
| 1223 m->name); | |
| 1224 break; | |
| 1225 | |
| 1226 case MODE_VECTOR_INT: | |
| 1227 case MODE_VECTOR_FLOAT: | |
| 1228 case MODE_VECTOR_FRACT: | |
| 1229 case MODE_VECTOR_UFRACT: | |
| 1230 case MODE_VECTOR_ACCUM: | |
| 1231 case MODE_VECTOR_UACCUM: | |
| 1232 printf (" mode_size[%smode] = %d*s;\n", | |
| 1233 m->name, m->ncomponents); | |
| 1234 printf (" mode_base_align[%smode] = (%d*s) & (~(%d*s)+1);\n", | |
| 1235 m->name, m->ncomponents, m->ncomponents); | |
| 1236 break; | |
| 1237 | |
| 1238 default: | |
| 1239 internal_error ( | |
| 1240 "mode %s is neither vector nor complex but contains %s", | |
| 1241 m->name, a->mode->name); | |
| 1242 /* NOTREACHED */ | |
| 1243 } | |
| 1244 } | |
| 1245 } | |
| 1246 | |
| 1247 /* Alignment adjustments propagate too. | |
| 1248 ??? This may not be the right thing for vector modes. */ | |
| 1249 for (a = adj_alignment; a; a = a->next) | |
| 1250 { | |
| 1251 printf ("\n /* %s:%d */\n s = %s;\n", | |
| 1252 a->file, a->line, a->adjustment); | |
| 1253 printf (" mode_base_align[%smode] = s;\n", a->mode->name); | |
| 1254 | |
| 1255 for (m = a->mode->contained; m; m = m->next_cont) | |
| 1256 { | |
| 1257 switch (m->cl) | |
| 1258 { | |
| 1259 case MODE_COMPLEX_INT: | |
| 1260 case MODE_COMPLEX_FLOAT: | |
| 1261 printf (" mode_base_align[%smode] = s;\n", m->name); | |
| 1262 break; | |
| 1263 | |
| 1264 case MODE_VECTOR_INT: | |
| 1265 case MODE_VECTOR_FLOAT: | |
| 1266 case MODE_VECTOR_FRACT: | |
| 1267 case MODE_VECTOR_UFRACT: | |
| 1268 case MODE_VECTOR_ACCUM: | |
| 1269 case MODE_VECTOR_UACCUM: | |
| 1270 printf (" mode_base_align[%smode] = %d*s;\n", | |
| 1271 m->name, m->ncomponents); | |
| 1272 break; | |
| 1273 | |
| 1274 default: | |
| 1275 internal_error ( | |
| 1276 "mode %s is neither vector nor complex but contains %s", | |
| 1277 m->name, a->mode->name); | |
| 1278 /* NOTREACHED */ | |
| 1279 } | |
| 1280 } | |
| 1281 } | |
| 1282 | |
| 1283 /* Ibit adjustments don't have to propagate. */ | |
| 1284 for (a = adj_ibit; a; a = a->next) | |
| 1285 { | |
| 1286 printf ("\n /* %s:%d */\n s = %s;\n", | |
| 1287 a->file, a->line, a->adjustment); | |
| 1288 printf (" mode_ibit[%smode] = s;\n", a->mode->name); | |
| 1289 } | |
| 1290 | |
| 1291 /* Fbit adjustments don't have to propagate. */ | |
| 1292 for (a = adj_fbit; a; a = a->next) | |
| 1293 { | |
| 1294 printf ("\n /* %s:%d */\n s = %s;\n", | |
| 1295 a->file, a->line, a->adjustment); | |
| 1296 printf (" mode_fbit[%smode] = s;\n", a->mode->name); | |
| 1297 } | |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1298 |
| 0 | 1299 /* Real mode formats don't have to propagate anywhere. */ |
| 1300 for (a = adj_format; a; a = a->next) | |
| 1301 printf ("\n /* %s:%d */\n REAL_MODE_FORMAT (%smode) = %s;\n", | |
| 1302 a->file, a->line, a->mode->name, a->adjustment); | |
| 1303 | |
| 1304 puts ("}"); | |
| 1305 } | |
| 1306 | |
| 1307 /* Emit ibit for all modes. */ | |
| 1308 | |
| 1309 static void | |
| 1310 emit_mode_ibit (void) | |
| 1311 { | |
| 1312 int c; | |
| 1313 struct mode_data *m; | |
| 1314 | |
| 1315 print_maybe_const_decl ("%sunsigned char", | |
| 1316 "mode_ibit", "NUM_MACHINE_MODES", | |
| 1317 ibit); | |
| 1318 | |
| 1319 for_all_modes (c, m) | |
| 1320 tagged_printf ("%u", m->ibit, m->name); | |
| 1321 | |
| 1322 print_closer (); | |
| 1323 } | |
| 1324 | |
| 1325 /* Emit fbit for all modes. */ | |
| 1326 | |
| 1327 static void | |
| 1328 emit_mode_fbit (void) | |
| 1329 { | |
| 1330 int c; | |
| 1331 struct mode_data *m; | |
| 1332 | |
| 1333 print_maybe_const_decl ("%sunsigned char", | |
| 1334 "mode_fbit", "NUM_MACHINE_MODES", | |
| 1335 fbit); | |
| 1336 | |
| 1337 for_all_modes (c, m) | |
| 1338 tagged_printf ("%u", m->fbit, m->name); | |
| 1339 | |
| 1340 print_closer (); | |
| 1341 } | |
| 1342 | |
| 1343 | |
| 1344 static void | |
| 1345 emit_insn_modes_c (void) | |
| 1346 { | |
| 1347 emit_insn_modes_c_header (); | |
| 1348 emit_mode_name (); | |
| 1349 emit_mode_class (); | |
| 1350 emit_mode_precision (); | |
| 1351 emit_mode_size (); | |
| 1352 emit_mode_nunits (); | |
| 1353 emit_mode_wider (); | |
| 1354 emit_mode_mask (); | |
| 1355 emit_mode_inner (); | |
| 1356 emit_mode_base_align (); | |
| 1357 emit_class_narrowest_mode (); | |
| 1358 emit_real_format_for_mode (); | |
| 1359 emit_mode_adjustments (); | |
| 1360 emit_mode_ibit (); | |
| 1361 emit_mode_fbit (); | |
| 1362 } | |
| 1363 | |
| 1364 static void | |
| 1365 emit_min_insn_modes_c (void) | |
| 1366 { | |
| 1367 emit_min_insn_modes_c_header (); | |
| 1368 emit_mode_name (); | |
| 1369 emit_mode_class (); | |
| 1370 emit_mode_wider (); | |
| 1371 emit_class_narrowest_mode (); | |
| 1372 } | |
| 1373 | |
| 1374 /* Master control. */ | |
| 1375 int | |
| 1376 main (int argc, char **argv) | |
| 1377 { | |
| 1378 bool gen_header = false, gen_min = false; | |
| 1379 progname = argv[0]; | |
| 1380 | |
| 1381 if (argc == 1) | |
| 1382 ; | |
| 1383 else if (argc == 2 && !strcmp (argv[1], "-h")) | |
| 1384 gen_header = true; | |
| 1385 else if (argc == 2 && !strcmp (argv[1], "-m")) | |
| 1386 gen_min = true; | |
| 1387 else | |
| 1388 { | |
| 1389 error ("usage: %s [-h|-m] > file", progname); | |
| 1390 return FATAL_EXIT_CODE; | |
| 1391 } | |
| 1392 | |
| 1393 modes_by_name = htab_create_alloc (64, hash_mode, eq_mode, 0, xcalloc, free); | |
| 1394 | |
| 1395 create_modes (); | |
| 1396 complete_all_modes (); | |
| 1397 | |
| 1398 if (have_error) | |
| 1399 return FATAL_EXIT_CODE; | |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1400 |
| 0 | 1401 calc_wider_mode (); |
| 1402 | |
| 1403 if (gen_header) | |
| 1404 emit_insn_modes_h (); | |
| 1405 else if (gen_min) | |
| 1406 emit_min_insn_modes_c (); | |
| 1407 else | |
| 1408 emit_insn_modes_c (); | |
| 1409 | |
| 1410 if (fflush (stdout) || fclose (stdout)) | |
| 1411 return FATAL_EXIT_CODE; | |
| 1412 return SUCCESS_EXIT_CODE; | |
| 1413 } |