irmode.c 14.8 KB
Newer Older
Christian Würdig's avatar
Christian Würdig committed
1
2
/*
 * This file is part of libFirm.
3
 * Copyright (C) 2012 University of Karlsruhe.
Christian Würdig's avatar
Christian Würdig committed
4
5
 */

Matthias Braun's avatar
Matthias Braun committed
6
7
8
9
/**
 * @file
 * @brief    Data modes of operations.
 * @author   Martin Trapp, Christian Schaefer, Goetz Lindenmaier, Mathias Heil
Götz Lindenmaier's avatar
Götz Lindenmaier committed
10
 */
Moritz Kroll's avatar
Moritz Kroll committed
11
12
#include <stdlib.h>
#include <stddef.h>
13
#include <stdbool.h>
14

Moritz Kroll's avatar
Moritz Kroll committed
15
16
17
18
19
20
21
#include "irprog_t.h"
#include "irmode_t.h"
#include "ident.h"
#include "tv_t.h"
#include "obst.h"
#include "irhooks.h"
#include "array.h"
Matthias Braun's avatar
Matthias Braun committed
22
#include "panic.h"
23
#include "pattern_dmp.h"
24
#include "strcalc.h"
Christian Schäfer's avatar
Christian Schäfer committed
25

Michael Beck's avatar
Michael Beck committed
26
/** Obstack to hold all modes. */
27
static struct obstack modes;
Christian Schäfer's avatar
Christian Schäfer committed
28

Michael Beck's avatar
Michael Beck committed
29
/** The list of all currently existing modes. */
Matthias Braun's avatar
Matthias Braun committed
30
31
static ir_mode **mode_list;

32
static bool modes_are_equal(const ir_mode *m, const ir_mode *n)
33
{
34
35
36
37
	if (m->sort != n->sort)
		return false;
	if (m->sort == irms_auxiliary || m->sort == irms_data)
		return strcmp(m->name, n->name) == 0;
38
39
40
41
42
	return m->arithmetic        == n->arithmetic
	    && m->size              == n->size
	    && m->sign              == n->sign
	    && m->modulo_shift      == n->modulo_shift
	    && m->int_conv_overflow == n->int_conv_overflow;
43
}
Matthias Heil's avatar
Matthias Heil committed
44

45
/**
46
 * searches the modes obstack for the given mode and returns
47
 * a pointer on an equal mode already in the array, NULL if
48
49
 * none found
 */
50
51
static ir_mode *find_mode(const ir_mode *m)
{
Matthias Braun's avatar
Matthias Braun committed
52
	for (size_t i = 0, n_modes = ARR_LEN(mode_list); i < n_modes; ++i) {
Matthias Braun's avatar
Matthias Braun committed
53
		ir_mode *n = mode_list[i];
54
55
56
		if (modes_are_equal(n, m))
			return n;
	}
Michael Beck's avatar
Michael Beck committed
57
58
59
	return NULL;
}

60
61
62
63
ir_mode *mode_T;
ir_mode *mode_X;
ir_mode *mode_M;
ir_mode *mode_BB;
64
65
ir_mode *mode_ANY;
ir_mode *mode_BAD;
Christian Schäfer's avatar
Christian Schäfer committed
66

67
68
ir_mode *mode_F;
ir_mode *mode_D;
Christian Schäfer's avatar
Christian Schäfer committed
69

70
71
72
ir_mode *mode_Bs;
ir_mode *mode_Bu;
ir_mode *mode_Hs;
73
ir_mode *mode_Hu;
74
ir_mode *mode_Is;
75
ir_mode *mode_Iu;
76
ir_mode *mode_Ls;
77
ir_mode *mode_Lu;
Christian Schäfer's avatar
Christian Schäfer committed
78

79
80
ir_mode *mode_b;
ir_mode *mode_P;
Michael Beck's avatar
fixed:    
Michael Beck committed
81

Matthias Braun's avatar
Matthias Braun committed
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
ir_mode *get_modeT(void)   { return mode_T;   }
ir_mode *get_modeF(void)   { return mode_F;   }
ir_mode *get_modeD(void)   { return mode_D;   }
ir_mode *get_modeBs(void)  { return mode_Bs;  }
ir_mode *get_modeBu(void)  { return mode_Bu;  }
ir_mode *get_modeHs(void)  { return mode_Hs;  }
ir_mode *get_modeHu(void)  { return mode_Hu;  }
ir_mode *get_modeIs(void)  { return mode_Is;  }
ir_mode *get_modeIu(void)  { return mode_Iu;  }
ir_mode *get_modeLs(void)  { return mode_Ls;  }
ir_mode *get_modeLu(void)  { return mode_Lu;  }
ir_mode *get_modeb(void)   { return mode_b;   }
ir_mode *get_modeP(void)   { return mode_P;   }
ir_mode *get_modeX(void)   { return mode_X;   }
ir_mode *get_modeM(void)   { return mode_M;   }
ir_mode *get_modeBB(void)  { return mode_BB;  }
98
99
ir_mode *get_modeANY(void) { return mode_ANY; }
ir_mode *get_modeBAD(void) { return mode_BAD; }
100

101
void set_modeP(ir_mode *p)
102
{
103
	assert(mode_is_reference(p));
104
	mode_P = p;
Michael Beck's avatar
Michael Beck committed
105
}
106

107
108
/*
 * Creates a new mode.
109
 */
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
static ir_mode *alloc_mode(const char *name, ir_mode_sort sort,
                           ir_mode_arithmetic arithmetic, unsigned bit_size,
                           int sign, unsigned modulo_shift)
{
	ir_mode *mode_tmpl = OALLOCZ(&modes, ir_mode);

	mode_tmpl->name         = new_id_from_str(name);
	mode_tmpl->sort         = sort;
	mode_tmpl->size         = bit_size;
	mode_tmpl->sign         = sign ? 1 : 0;
	mode_tmpl->modulo_shift = modulo_shift;
	mode_tmpl->arithmetic   = arithmetic;
	return mode_tmpl;
}

static ir_mode *register_mode(ir_mode *mode)
{
	/* does any of the existing modes have the same properties? */
	ir_mode *old = find_mode(mode);
	if (old != NULL) {
		/* remove new mode from obstack */
		obstack_free(&modes, mode);
		return old;
	}
134

135
	mode->kind = k_ir_mode;
136
	mode->type = new_type_primitive(mode);
137
	ARR_APP1(ir_mode*, mode_list, mode);
138
	init_mode_values(mode);
139
	hook_new_mode(mode);
140
	return mode;
141
142
}

143
144
145
ir_mode *new_int_mode(const char *name, ir_mode_arithmetic arithmetic,
                      unsigned bit_size, int sign, unsigned modulo_shift)
{
146
	if (bit_size >= (unsigned)sc_get_precision())
yb9976's avatar
yb9976 committed
147
		panic("Cannot create mode: more bits than tarval module maximum");
148

149
150
151
152
	ir_mode *result = alloc_mode(name, irms_int_number, arithmetic, bit_size,
	                             sign, modulo_shift);
	return register_mode(result);
}
153

154
155
156
ir_mode *new_reference_mode(const char *name, ir_mode_arithmetic arithmetic,
                            unsigned bit_size, unsigned modulo_shift)
{
157
	if (bit_size >= (unsigned)sc_get_precision())
yb9976's avatar
yb9976 committed
158
		panic("Cannot create mode: more bits than tarval module maximum");
159

160
161
	ir_mode *result = alloc_mode(name, irms_reference, arithmetic, bit_size,
	                             0, modulo_shift);
162
163
164
165
166
167
168
169
170
171
	ir_mode *res = register_mode(result);

	/* construct the unsigned_eq mode */
	char buf[64];
	snprintf(buf, sizeof(buf), "%s_iu", name);
	ir_mode *unsigned_eq = alloc_mode(buf, irms_int_number, arithmetic,
	                                  bit_size, 0, modulo_shift);
	unsigned_eq = register_mode(unsigned_eq);
	set_reference_mode_unsigned_eq(res, unsigned_eq);
	return res;
172
}
173

174
ir_mode *new_float_mode(const char *name, ir_mode_arithmetic arithmetic,
175
176
                        unsigned exponent_size, unsigned mantissa_size,
                        float_int_conversion_overflow_style_t conv_overflow)
177
178
179
180
181
182
183
184
{
	bool     explicit_one = false;
	unsigned bit_size     = exponent_size + mantissa_size + 1;

	if (arithmetic == irma_x86_extended_float) {
		explicit_one = true;
	} else if (arithmetic != irma_ieee754) {
		panic("Arithmetic %s invalid for float");
185
	}
186
187
188
189
	if (exponent_size >= 256)
		panic("Exponents >= 256 bits not supported");
	if (mantissa_size >= 256)
		panic("Mantissa >= 256 bits not supported");
190
	if (exponent_size >= (unsigned)sc_get_precision())
yb9976's avatar
yb9976 committed
191
		panic("Cannot create mode: more bits than tarval module maximum");
192
	if (mantissa_size >= (unsigned)sc_get_precision())
yb9976's avatar
yb9976 committed
193
		panic("Cannot create mode: more bits than tarval module maximum");
194

Matthias Braun's avatar
Matthias Braun committed
195
196
	ir_mode *result
		= alloc_mode(name, irms_float_number, arithmetic, bit_size, 1, 0);
197
	result->int_conv_overflow        = conv_overflow;
198
199
200
201
	result->float_desc.exponent_size = exponent_size;
	result->float_desc.mantissa_size = mantissa_size;
	result->float_desc.explicit_one  = explicit_one;
	return register_mode(result);
202
203
}

204
205
206
207
208
209
210
211
212
213
214
215
ir_mode *new_non_arithmetic_mode(const char *name)
{
	ir_mode *result = alloc_mode(name, irms_data, irma_none, 0, 0, 0);
	return register_mode(result);
}

static ir_mode *new_non_data_mode(const char *name)
{
	ir_mode *result = alloc_mode(name, irms_auxiliary, irma_none, 0, 0, 0);
	return register_mode(result);
}

216
217
ident *(get_mode_ident)(const ir_mode *mode)
{
218
	return get_mode_ident_(mode);
Christian Schäfer's avatar
Christian Schäfer committed
219
220
}

221
222
const char *get_mode_name(const ir_mode *mode)
{
223
	return get_id_str(mode->name);
Christian Schäfer's avatar
Christian Schäfer committed
224
225
}

226
227
unsigned (get_mode_size_bits)(const ir_mode *mode)
{
228
	return get_mode_size_bits_(mode);
Christian Schäfer's avatar
Christian Schäfer committed
229
230
}

231
232
unsigned (get_mode_size_bytes)(const ir_mode *mode)
{
233
	return get_mode_size_bytes_(mode);
Götz Lindenmaier's avatar
Götz Lindenmaier committed
234
235
}

236
237
int (get_mode_sign)(const ir_mode *mode)
{
238
	return get_mode_sign_(mode);
239
240
}

241
242
ir_mode_arithmetic (get_mode_arithmetic)(const ir_mode *mode)
{
243
	return get_mode_arithmetic_(mode);
244
245
}

246

247
248
unsigned int (get_mode_modulo_shift)(const ir_mode *mode)
{
249
	return get_mode_modulo_shift_(mode);
250
251
}

yb9976's avatar
yb9976 committed
252
ir_tarval *get_mode_min(const ir_mode *mode)
253
{
254
	assert(mode_is_data(mode));
Christian Schäfer's avatar
Christian Schäfer committed
255

256
	return mode->min;
Christian Schäfer's avatar
Christian Schäfer committed
257
258
}

yb9976's avatar
yb9976 committed
259
ir_tarval *get_mode_max(const ir_mode *mode)
260
{
261
	assert(mode_is_data(mode));
Christian Schäfer's avatar
Christian Schäfer committed
262

263
	return mode->max;
Christian Schäfer's avatar
Christian Schäfer committed
264
265
}

266
ir_tarval *get_mode_null(const ir_mode *mode)
267
{
Matthias Braun's avatar
Matthias Braun committed
268
	assert(mode_is_data(mode) || mode == mode_b);
Christian Schäfer's avatar
Christian Schäfer committed
269

270
	return mode->null;
Christian Schäfer's avatar
Christian Schäfer committed
271
272
}

273
ir_tarval *get_mode_one(const ir_mode *mode)
274
{
Matthias Braun's avatar
Matthias Braun committed
275
	assert(mode_is_data(mode) || mode == mode_b);
Christian Schäfer's avatar
Christian Schäfer committed
276

277
	return mode->one;
Christian Schäfer's avatar
Christian Schäfer committed
278
279
}

yb9976's avatar
yb9976 committed
280
ir_tarval *get_mode_all_one(const ir_mode *mode)
281
{
Matthias Braun's avatar
Matthias Braun committed
282
	assert(mode_is_data(mode) || mode == mode_b);
283
284
285
	return mode->all_one;
}

286
ir_tarval *get_mode_infinite(const ir_mode *mode)
287
{
288
	assert(mode_is_float(mode));
289
	return mode->infinity;
Christian Schäfer's avatar
Christian Schäfer committed
290
291
}

292
ir_tarval *get_mode_NAN(const ir_mode *mode)
293
{
294
	assert(mode_is_float(mode));
295
	return mode->nan;
Christian Schäfer's avatar
Christian Schäfer committed
296
297
}

298
299
int is_mode(const void *thing)
{
Michael Beck's avatar
Michael Beck committed
300
	return get_kind(thing) == k_ir_mode;
301
302
}

303
304
int (mode_is_signed)(const ir_mode *mode)
{
305
	return mode_is_signed_(mode);
Christian Schäfer's avatar
Christian Schäfer committed
306
307
}

308
309
int (mode_is_float)(const ir_mode *mode)
{
310
	return mode_is_float_(mode);
Christian Schäfer's avatar
Christian Schäfer committed
311
312
}

313
314
int (mode_is_int)(const ir_mode *mode)
{
315
	return mode_is_int_(mode);
Christian Schäfer's avatar
Christian Schäfer committed
316
317
}

318
319
int (mode_is_reference)(const ir_mode *mode)
{
320
	return mode_is_reference_(mode);
321
322
}

323
324
int (mode_is_num)(const ir_mode *mode)
{
325
	return mode_is_num_(mode);
Christian Schäfer's avatar
Christian Schäfer committed
326
327
}

328
329
int (mode_is_data)(const ir_mode *mode)
{
330
	return mode_is_data_(mode);
Christian Schäfer's avatar
Christian Schäfer committed
331
332
}

333
334
335
336
337
338
339
340
341
342
unsigned (get_mode_mantissa_size)(const ir_mode *mode)
{
	return get_mode_mantissa_size_(mode);
}

unsigned (get_mode_exponent_size)(const ir_mode *mode)
{
	return get_mode_exponent_size_(mode);
}

343
344
345
346
347
348
float_int_conversion_overflow_style_t get_mode_float_int_overflow(
		const ir_mode *mode)
{
	return mode->int_conv_overflow;
}

349
350
int smaller_mode(const ir_mode *sm, const ir_mode *lm)
{
Matthias Braun's avatar
Matthias Braun committed
351
352
353
	assert(sm != NULL);
	assert(lm != NULL);
	if (sm == lm) return true;
354
355
356
357
358
359

	switch (get_mode_sort(sm)) {
	case irms_int_number:
		switch (get_mode_sort(lm)) {
		case irms_int_number:
			if (get_mode_arithmetic(sm) != get_mode_arithmetic(lm))
Matthias Braun's avatar
Matthias Braun committed
360
				return false;
361
362
363
364
365
366
367
368

			/* only two complement implemented */
			assert(get_mode_arithmetic(sm) == irma_twos_complement);

			/* integers are convertable if
			 *   - both have the same sign and lm is the larger one
			 *   - lm is the signed one and is at least two bits larger
			 *     (one for the sign, one for the highest bit of sm)
Matthias Braun's avatar
Matthias Braun committed
369
370
			 *   - sm & lm are two_complement and lm has greater or equal
			 *     number of bits
371
			 */
Matthias Braun's avatar
Matthias Braun committed
372
373
			unsigned sm_bits = get_mode_size_bits(sm);
			unsigned lm_bits = get_mode_size_bits(lm);
374
375
376
377
378
379
380
381
382
383
384
			if (mode_is_signed(sm)) {
				if (!mode_is_signed(lm))
					return 0;
				return sm_bits <= lm_bits;
			} else {
				if (mode_is_signed(lm)) {
					return sm_bits < lm_bits;
				}
				return sm_bits <= lm_bits;
			}

385
386
387
388
		case irms_auxiliary:
		case irms_data:
		case irms_internal_boolean:
		case irms_reference:
389
390
		case irms_float_number:
			/* int to float works if the float is large enough */
Matthias Braun's avatar
Matthias Braun committed
391
			return false;
392
		}
393
		panic("invalid mode_sort");
394
395

	case irms_float_number:
396
397
398
		return get_mode_arithmetic(sm) == get_mode_arithmetic(lm)
		    && get_mode_sort(lm) == irms_float_number
		    && get_mode_size_bits(lm) >= get_mode_size_bits(sm);
399

400
401
402
	case irms_auxiliary:
	case irms_data:
	case irms_internal_boolean:
403
	case irms_reference:
Michael Beck's avatar
Michael Beck committed
404
		/* do exist machines out there with different pointer lengths ?*/
Matthias Braun's avatar
Matthias Braun committed
405
		return false;
406
407
	}

408
	panic("invalid mode_sort");
409
410
}

411
412
int values_in_mode(const ir_mode *sm, const ir_mode *lm)
{
Matthias Braun's avatar
Matthias Braun committed
413
414
	assert(sm != NULL);
	assert(lm != NULL);
415
416
	if (sm == lm)
		return true;
417

Moritz Kroll's avatar
Moritz Kroll committed
418
	if (sm == mode_b)
419
420
421
422
423
424
425
426
		return mode_is_int(lm) || mode_is_float(lm);

	ir_mode_arithmetic larith = get_mode_arithmetic(lm);
	ir_mode_arithmetic sarith = get_mode_arithmetic(sm);
	switch (larith) {
	case irma_x86_extended_float:
	case irma_ieee754:
		if (sarith == irma_ieee754 || sarith == irma_x86_extended_float) {
Moritz Kroll's avatar
Moritz Kroll committed
427
			return get_mode_size_bits(sm) <= get_mode_size_bits(lm);
428
		} else if (sarith == irma_twos_complement) {
Matthias Braun's avatar
Matthias Braun committed
429
430
			unsigned int_mantissa
				= get_mode_size_bits(sm) - (mode_is_signed(sm) ? 1 : 0);
431
432
433
434
435
			unsigned float_mantissa = get_mode_mantissa_size(lm) + 1;
			return int_mantissa <= float_mantissa;
		}
		break;
	case irma_twos_complement:
Matthias Braun's avatar
Matthias Braun committed
436
		if (sarith == irma_twos_complement)
437
438
439
440
			return get_mode_size_bits(sm) <= get_mode_size_bits(lm);
		break;
	case irma_none:
		break;
441
	}
442
	return false;
443
444
}

yb9976's avatar
yb9976 committed
445
ir_mode *get_reference_mode_unsigned_eq(const ir_mode *mode)
446
{
447
448
449
450
	assert(mode_is_reference(mode));
	return mode->eq_unsigned;
}

451
452
void set_reference_mode_unsigned_eq(ir_mode *ref_mode, ir_mode *int_mode)
{
453
454
455
	assert(mode_is_reference(ref_mode));
	assert(mode_is_int(int_mode));
	ref_mode->eq_unsigned = int_mode;
456
457
}

458
459
void init_mode(void)
{
460
	obstack_init(&modes);
Matthias Braun's avatar
Matthias Braun committed
461
	mode_list = NEW_ARR_F(ir_mode*, 0);
462

463
	/* initialize predefined modes */
464
465
466
467
468
469
	mode_BB  = new_non_data_mode("BB");
	mode_X   = new_non_data_mode("X");
	mode_M   = new_non_data_mode("M");
	mode_T   = new_non_data_mode("T");
	mode_ANY = new_non_data_mode("ANY");
	mode_BAD = new_non_data_mode("BAD");
470
	mode_b   = alloc_mode("b", irms_internal_boolean, irma_none, 1, 0, 0);
471
	mode_b   = register_mode(mode_b);
472

473
474
	mode_F   = new_float_mode("F", irma_ieee754,  8, 23, ir_overflow_min_max);
	mode_D   = new_float_mode("D", irma_ieee754, 11, 52, ir_overflow_min_max);
475
476
477
478
479
480
481
482
483
484
485

	mode_Bs  = new_int_mode("Bs",  irma_twos_complement, 8,   1, 32);
	mode_Bu  = new_int_mode("Bu",  irma_twos_complement, 8,   0, 32);
	mode_Hs  = new_int_mode("Hs",  irma_twos_complement, 16,  1, 32);
	mode_Hu  = new_int_mode("Hu",  irma_twos_complement, 16,  0, 32);
	mode_Is  = new_int_mode("Is",  irma_twos_complement, 32,  1, 32);
	mode_Iu  = new_int_mode("Iu",  irma_twos_complement, 32,  0, 32);
	mode_Ls  = new_int_mode("Ls",  irma_twos_complement, 64,  1, 64);
	mode_Lu  = new_int_mode("Lu",  irma_twos_complement, 64,  0, 64);

	mode_P   = new_reference_mode("P", irma_twos_complement, 32, 32);
486
}
487

488
489
ir_mode *find_unsigned_mode(const ir_mode *mode)
{
490
	ir_mode n = *mode;
491

492
493
494
495
496
	/* allowed for reference mode */
	if (mode->sort == irms_reference)
		n.sort = irms_int_number;

	assert(n.sort == irms_int_number);
497
498
	n.sign = 0;
	return find_mode(&n);
499
500
}

501
502
ir_mode *find_signed_mode(const ir_mode *mode)
{
503
	ir_mode n = *mode;
504

505
506
507
	assert(mode->sort == irms_int_number);
	n.sign = 1;
	return find_mode(&n);
508
509
}

510
511
ir_mode *find_double_bits_int_mode(const ir_mode *mode)
{
512
	ir_mode n = *mode;
Michael Beck's avatar
Michael Beck committed
513

Matthias Braun's avatar
Matthias Braun committed
514
515
	assert(mode->sort == irms_int_number
	       && mode->arithmetic == irma_twos_complement);
Michael Beck's avatar
Michael Beck committed
516

517
	n.size = 2*mode->size;
518
519
	if (n.modulo_shift != 0 && n.modulo_shift < n.size)
		n.modulo_shift = n.size;
520
	return find_mode(&n);
Michael Beck's avatar
Michael Beck committed
521
}
522

523
524
525
526
527
int mode_has_signed_zero(const ir_mode *mode)
{
	switch (mode->arithmetic) {
	case irma_ieee754:
	case irma_x86_extended_float:
Matthias Braun's avatar
Matthias Braun committed
528
		return true;
529
530
	case irma_none:
	case irma_twos_complement:
Matthias Braun's avatar
Matthias Braun committed
531
		return false;
532
	}
533
	panic("invalid arithmetic mode");
534
535
}

536
537
int mode_overflow_on_unary_Minus(const ir_mode *mode)
{
538
539
	switch (mode->arithmetic) {
	case irma_twos_complement:
Matthias Braun's avatar
Matthias Braun committed
540
		return true;
541
542
543
	case irma_ieee754:
	case irma_x86_extended_float:
	case irma_none:
Matthias Braun's avatar
Matthias Braun committed
544
		return false;
545
546
	}
	panic("invalid arithmetic mode");
547
548
}

549
550
int mode_wrap_around(const ir_mode *mode)
{
551
552
553
	switch (mode->arithmetic) {
	case irma_twos_complement:
	case irma_none:
Matthias Braun's avatar
Matthias Braun committed
554
		return true;
555
556
	case irma_ieee754:
	case irma_x86_extended_float:
Matthias Braun's avatar
Matthias Braun committed
557
		return false;
558
559
	}
	panic("invalid arithmetic mode");
Michael Beck's avatar
Michael Beck committed
560
561
}

562
563
int is_reinterpret_cast(const ir_mode *src, const ir_mode *dst)
{
564
	if (src == dst)
Matthias Braun's avatar
Matthias Braun committed
565
		return true;
566
	if (get_mode_size_bits(src) != get_mode_size_bits(dst))
Matthias Braun's avatar
Matthias Braun committed
567
568
		return false;
	ir_mode_arithmetic ma = get_mode_arithmetic(src);
569
	if (ma != get_mode_arithmetic(dst))
Matthias Braun's avatar
Matthias Braun committed
570
		return false;
571

572
	return ma == irma_twos_complement;
573
574
}

575
576
577
578
579
ir_type *(get_type_for_mode) (const ir_mode *mode)
{
	return get_type_for_mode_(mode);
}

Matthias Braun's avatar
Matthias Braun committed
580
581
582
583
584
585
586
587
588
589
590
size_t ir_get_n_modes(void)
{
	return ARR_LEN(mode_list);
}

ir_mode *ir_get_mode(size_t num)
{
	assert(num < ARR_LEN(mode_list));
	return mode_list[num];
}

591
592
void finish_mode(void)
{
593
	obstack_free(&modes, 0);
Matthias Braun's avatar
Matthias Braun committed
594
	DEL_ARR_F(mode_list);
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616

	mode_T   = NULL;
	mode_X   = NULL;
	mode_M   = NULL;
	mode_BB  = NULL;
	mode_ANY = NULL;
	mode_BAD = NULL;

	mode_F   = NULL;
	mode_D   = NULL;

	mode_Bs  = NULL;
	mode_Bu  = NULL;
	mode_Hs  = NULL;
	mode_Hu  = NULL;
	mode_Is  = NULL;
	mode_Iu  = NULL;
	mode_Ls  = NULL;
	mode_Lu  = NULL;

	mode_b   = NULL;

617
	mode_P   = NULL;
618
}