irio.c 31 KB
Newer Older
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
/*
 * Copyright (C) 1995-2009 University of Karlsruhe.  All right reserved.
 *
 * This file is part of libFirm.
 *
 * This file may be distributed and/or modified under the terms of the
 * GNU General Public License version 2 as published by the Free Software
 * Foundation and appearing in the file LICENSE.GPL included in the
 * packaging of this file.
 *
 * Licensees holding valid libFirm Professional Edition licenses may use
 * this file in accordance with the libFirm Commercial License.
 * Agreement provided with the Software.
 *
 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE.
 */

/**
 * @file
 * @brief   Write textual representation of firm to file.
 * @author  Moritz Kroll
 * @version $Id$
 */
#include "config.h"

#include <string.h>

#include "irio.h"

32
#include "irnode_t.h"
33
34
35
36
37
38
39
40
41
42
43
#include "irprog.h"
#include "irgraph_t.h"
#include "ircons.h"
#include "irgmod.h"
#include "irflag_t.h"
#include "irgwalk.h"
#include "tv.h"
#include "array.h"
#include "error.h"
#include "adt/set.h"

44
#define SYMERROR ((unsigned) ~0)
45

Moritz Kroll's avatar
Moritz Kroll committed
46
typedef struct io_env_t
47
48
49
50
51
52
53
54
{
	FILE *file;
	set *idset;               /**< id_entry set, which maps from file ids to new Firm elements */
	int ignoreblocks;
	int line, col;
	ir_type **fixedtypes;
} io_env_t;

Moritz Kroll's avatar
Moritz Kroll committed
55
56
57
58
59
60
typedef struct lex_state_t
{
	long offs;
	int line, col;
} lex_state_t;

61
62
63
64
typedef enum typetag_t
{
	tt_align,
	tt_allocation,
65
66
67
	tt_builtin,
	tt_initializer,
	tt_iro,
68
69
	tt_peculiarity,
	tt_pin_state,
70
	tt_tpo,
71
72
73
	tt_type_state,
	tt_variability,
	tt_visibility,
74
	tt_volatility
75
76
} typetag_t;

77
typedef struct symbol_t
78
{
79
80
81
82
	const char *str;      /**< The name of this symbol. */
	typetag_t   typetag;  /**< The type tag of this symbol. */
	unsigned    code;     /**< The value of this symbol. */
} symbol_t;
83
84
85
86
87
88
89

typedef struct id_entry
{
	long id;
	void *elem;
} id_entry;

90
91
/** The symbol table, a set of symbol_t elements. */
static set *symtbl;
92
93


94
95
96
97
/**
 * Calculate a hash value for a string.
 */
static unsigned string_hash(const char *str, int len)
98
99
100
101
{
	return str[0] * 27893 ^ str[len-1] * 81 ^ str[len >> 1];
}

102
103
104
105
/**
 * Compare two symbol table entries.
 */
static int symbol_cmp(const void *elt, const void *key, size_t size)
106
{
107
108
	const symbol_t *entry = (const symbol_t *) elt;
	const symbol_t *keyentry = (const symbol_t *) key;
109
110
111
112
113
114
115
116
117
118
119
120
	(void) size;
	return strcmp(entry->str, keyentry->str);
}

static int id_cmp(const void *elt, const void *key, size_t size)
{
	const id_entry *entry = (const id_entry *) elt;
	const id_entry *keyentry = (const id_entry *) key;
	(void) size;
	return entry->id - keyentry->id;
}

121
122
/** Initializes the symbol table. May be called more than once without problems. */
static void symtbl_init(void)
123
{
124
	symbol_t key;
125
126

	/* Only initialize once */
127
128
	if(symtbl != NULL)
		return;
129

130
	symtbl = new_set(symbol_cmp, 256);
131
132
133
134
135

#define INSERT(s, tt, cod)                                       \
	key.str = (s);                                               \
	key.typetag = (tt);                                          \
	key.code = (cod);                                            \
136
	set_insert(symtbl, &key, sizeof(key), string_hash(s, sizeof(s)-1))
137
138
139
140

#define INSERTENUM(tt, e) INSERT(#e, tt, e)

	INSERT("array", tt_tpo, tpo_array);
141
142
143
144
	INSERT("class", tt_tpo, tpo_class);
	INSERT("method", tt_tpo, tpo_method);
	INSERT("pointer", tt_tpo, tpo_pointer);
	INSERT("primitive", tt_tpo, tpo_primitive);
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
	INSERT("struct", tt_tpo, tpo_struct);
	INSERT("Unknown", tt_tpo, tpo_unknown);

#include "gen_irio_lex.inl"

	INSERTENUM(tt_align, align_non_aligned);
	INSERTENUM(tt_align, align_is_aligned);

	INSERTENUM(tt_allocation, allocation_automatic);
	INSERTENUM(tt_allocation, allocation_parameter);
	INSERTENUM(tt_allocation, allocation_dynamic);
	INSERTENUM(tt_allocation, allocation_static);

	INSERTENUM(tt_pin_state, op_pin_state_floats);
	INSERTENUM(tt_pin_state, op_pin_state_pinned);
	INSERTENUM(tt_pin_state, op_pin_state_exc_pinned);
	INSERTENUM(tt_pin_state, op_pin_state_mem_pinned);

	INSERTENUM(tt_type_state, layout_undefined);
	INSERTENUM(tt_type_state, layout_fixed);

	INSERTENUM(tt_variability, variability_uninitialized);
	INSERTENUM(tt_variability, variability_initialized);
	INSERTENUM(tt_variability, variability_part_constant);
	INSERTENUM(tt_variability, variability_constant);

	INSERTENUM(tt_visibility, visibility_local);
	INSERTENUM(tt_visibility, visibility_external_visible);
	INSERTENUM(tt_visibility, visibility_external_allocated);

	INSERTENUM(tt_volatility, volatility_non_volatile);
	INSERTENUM(tt_volatility, volatility_is_volatile);

	INSERTENUM(tt_peculiarity, peculiarity_description);
	INSERTENUM(tt_peculiarity, peculiarity_inherited);
	INSERTENUM(tt_peculiarity, peculiarity_existent);

182
183
184
185
186
	INSERTENUM(tt_initializer, IR_INITIALIZER_CONST);
	INSERTENUM(tt_initializer, IR_INITIALIZER_TARVAL);
	INSERTENUM(tt_initializer, IR_INITIALIZER_NULL);
	INSERTENUM(tt_initializer, IR_INITIALIZER_COMPOUND);

187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
	INSERTENUM(tt_builtin, ir_bk_trap);
	INSERTENUM(tt_builtin, ir_bk_debugbreak);
	INSERTENUM(tt_builtin, ir_bk_return_address);
	INSERTENUM(tt_builtin, ir_bk_frame_addess);
	INSERTENUM(tt_builtin, ir_bk_prefetch);
	INSERTENUM(tt_builtin, ir_bk_ffs);
	INSERTENUM(tt_builtin, ir_bk_clz);
	INSERTENUM(tt_builtin, ir_bk_ctz);
	INSERTENUM(tt_builtin, ir_bk_popcount);
	INSERTENUM(tt_builtin, ir_bk_parity);
	INSERTENUM(tt_builtin, ir_bk_bswap);
	INSERTENUM(tt_builtin, ir_bk_inport);
	INSERTENUM(tt_builtin, ir_bk_outport);
	INSERTENUM(tt_builtin, ir_bk_inner_trampoline);

202
203
204
205
#undef INSERTENUM
#undef INSERT
}

206
207
/** Returns the according symbol value for the given string and tag, or SYMERROR if none was found. */
static unsigned symbol(const char *str, typetag_t typetag)
208
{
209
	symbol_t key, *entry;
210
211
212

	key.str = str;

213
	entry = set_find(symtbl, &key, sizeof(key), string_hash(str, strlen(str)));
214
215
216
	if (entry && entry->typetag == typetag) {
		return entry->code;
	}
217
	return SYMERROR;
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
}

static void *get_id(io_env_t *env, long id)
{
	id_entry key, *entry;
	key.id = id;

	entry = set_find(env->idset, &key, sizeof(key), (unsigned) id);
	return entry ? entry->elem : NULL;
}

static void set_id(io_env_t *env, long id, void *elem)
{
	id_entry key;
	key.id = id;
	key.elem = elem;
	set_insert(env->idset, &key, sizeof(key), (unsigned) id);
}

static void write_mode(io_env_t *env, ir_mode *mode)
{
	fputs(get_mode_name(mode), env->file);
	fputc(' ', env->file);
}

243
244
245
246
247
248
249
250
251
static void write_tarval(io_env_t *env, tarval *tv)
{
	char buf[1024];
	write_mode(env, get_tarval_mode(tv));
	tarval_snprintf(buf, sizeof(buf), tv);
	fputs(buf, env->file);
	fputc(' ', env->file);
}

252
static void write_pin_state(io_env_t *env, ir_node *irn)
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
{
	fputs(get_op_pin_state_name(get_irn_pinned(irn)), env->file);
	fputc(' ', env->file);
}

static void write_volatility(io_env_t *env, ir_node *irn)
{
	ir_volatility vol;

	if(is_Load(irn)) vol = get_Load_volatility(irn);
	else if(is_Store(irn)) vol = get_Store_volatility(irn);
	else assert(0 && "Invalid optype for write_volatility");

	fputs(get_volatility_name(vol), env->file);
	fputc(' ', env->file);
}

static void write_align(io_env_t *env, ir_node *irn)
{
	ir_align align;

	if(is_Load(irn)) align = get_Load_align(irn);
	else if(is_Store(irn)) align = get_Store_align(irn);
	else assert(0 && "Invalid optype for write_align");

	fputs(get_align_name(align), env->file);
	fputc(' ', env->file);
}

282
283
284
285
286
287
static void write_builtin_kind(io_env_t *env, ir_node *irn)
{
	fputs(get_builtin_kind_name(get_Builtin_kind(irn)), env->file);
	fputc(' ', env->file);
}

288
289
290
291
static void write_initializer(io_env_t *env, ir_initializer_t *ini)
{
	FILE *f = env->file;
	ir_initializer_kind_t ini_kind = get_initializer_kind(ini);
292

293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
	fputs(get_initializer_kind_name(ini_kind), f);
	fputc(' ', f);

	switch(ini_kind)
	{
		case IR_INITIALIZER_CONST:
			fprintf(f, "%ld ", get_irn_node_nr(get_initializer_const_value(ini)));
			break;

		case IR_INITIALIZER_TARVAL:
			write_tarval(env, get_initializer_tarval_value(ini));
			break;

		case IR_INITIALIZER_NULL:
			break;

		case IR_INITIALIZER_COMPOUND:
		{
			unsigned i, n = get_initializer_compound_n_entries(ini);
			fprintf(f, "%d ", n);
			for(i = 0; i < n; i++)
				write_initializer(env, get_initializer_compound_value(ini, i));
			break;
		}

		default:
			panic("Unknown initializer kind");
	}
}

323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
static void export_type(io_env_t *env, ir_type *tp)
{
	FILE *f = env->file;
	int i;
	fprintf(f, "\ttype %ld %s \"%s\" %u %u %s %s ",
			get_type_nr(tp),
			get_type_tpop_name(tp),
			get_type_name(tp),
			get_type_size_bytes(tp),
			get_type_alignment_bytes(tp),
			get_type_state_name(get_type_state(tp)),
			get_visibility_name(get_type_visibility(tp)));

	switch(get_type_tpop_code(tp))
	{
		case tpo_array:
		{
			int n = get_array_n_dimensions(tp);
			fprintf(f, "%i %ld ", n, get_type_nr(get_array_element_type(tp)));
			for(i = 0; i < n; i++)
			{
				ir_node *lower = get_array_lower_bound(tp, i);
				ir_node *upper = get_array_upper_bound(tp, i);

				if(is_Const(lower)) fprintf(f, "%ld ", get_tarval_long(get_Const_tarval(lower)));
				else panic("Lower array bound is not constant");

				if(is_Const(upper)) fprintf(f, "%ld ", get_tarval_long(get_Const_tarval(upper)));
351
				else if(is_Unknown(upper)) fputs("unknown ", f);
352
353
354
355
356
				else panic("Upper array bound is not constant");
			}
			break;
		}

357
358
359
360
361
		case tpo_class:
			/* TODO: inheritance stuff not supported yet */
			printf("Inheritance of classes not supported yet!\n");
			break;

362
363
364
365
366
367
368
369
370
371
372
373
		case tpo_method:
		{
			int nparams = get_method_n_params(tp);
			int nresults = get_method_n_ress(tp);
			fprintf(f, "%i %i ", nparams, nresults);
			for(i = 0; i < nparams; i++)
				fprintf(f, "%ld ", get_type_nr(get_method_param_type(tp, i)));
			for(i = 0; i < nresults; i++)
				fprintf(f, "%ld ", get_type_nr(get_method_res_type(tp, i)));
			break;
		}

374
		case tpo_pointer:
375
			write_mode(env, get_type_mode(tp));
376
			fprintf(f, "%ld ", get_type_nr(get_pointer_points_to_type(tp)));
377
378
			break;

379
380
		case tpo_primitive:
			write_mode(env, get_type_mode(tp));
381
382
			break;

383
		case tpo_struct:
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
			break;

		case tpo_unknown:
			break;

		default:
			printf("export_type: Unknown type code \"%s\".\n", get_type_tpop_name(tp));
			break;
	}
	fputc('\n', f);
}

static void export_entity(io_env_t *env, ir_entity *ent)
{
	ir_type *owner = get_entity_owner(ent);
399
	fprintf(env->file, "\tentity %ld \"%s\" \"%s\" %ld %ld %d %u %s %s %s %s %s ",
400
401
			get_entity_nr(ent),
			get_entity_name(ent),
402
			ent->ld_name ? get_id_str(ent->ld_name) : "",
403
404
405
			get_type_nr(get_entity_type(ent)),
			get_type_nr(owner),
			get_entity_offset(ent),
406
			(unsigned) get_entity_offset_bits_remainder(ent),
407
408
409
410
411
412
413
414
415
			get_allocation_name(get_entity_allocation(ent)),
			get_visibility_name(get_entity_visibility(ent)),
			get_variability_name(get_entity_variability(ent)),
			get_peculiarity_name(get_entity_peculiarity(ent)),
			get_volatility_name(get_entity_volatility(ent)));

	// TODO: inheritance stuff for class entities not supported yet
	if(is_Class_type(owner) && owner != get_glob_type())
		printf("Inheritance of class entities not supported yet!\n");
416
417
418
419
420
421

	if(get_entity_variability(ent) != variability_uninitialized
		&& get_entity_visibility(ent) != visibility_external_allocated)
	{
		if(is_compound_entity(ent))
		{
422
423
424
425
426
427
			if(has_entity_initializer(ent))
			{
				fputs("initializer ", env->file);
				write_initializer(env, get_entity_initializer(ent));
			}
			else
428
			{
429
				int i, n = get_compound_ent_n_values(ent);
430
				fputs("noninitializer ", env->file);
431
432
433
434
435
436
437
				fprintf(env->file, "%d ", n);
				for(i = 0; i < n; i++)
				{
					ir_entity *member = get_compound_ent_value_member(ent, i);
					ir_node   *irn    = get_compound_ent_value(ent, i);
					fprintf(env->file, "%ld %ld ", get_entity_nr(member), get_irn_node_nr(irn));
				}
438
439
440
441
442
443
444
445
446
447
			}
		}
		else
		{
			ir_node *irn = get_atomic_ent_value(ent);
			fprintf(env->file, "%ld ", get_irn_node_nr(irn));
		}
	}

	fputc('\n', env->file);
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
}

static void export_type_or_ent(type_or_ent tore, void *ctx)
{
	io_env_t *env = (io_env_t *) ctx;

	switch(get_kind(tore.ent))
	{
		case k_entity:
			export_entity(env, tore.ent);
			break;

		case k_type:
			export_type(env, tore.typ);
			break;

		default:
			printf("export_type_or_ent: Unknown type or entity.\n");
			break;
	}
}

static void export_node(ir_node *irn, void *ctx)
{
	io_env_t *env = (io_env_t *) ctx;
	int i, n;
	unsigned opcode = get_irn_opcode(irn);

476
477
	if(env->ignoreblocks && opcode == iro_Block)
		return;
478
479
480

	n = get_irn_arity(irn);

481
	fprintf(env->file, "\t%s %ld [ ", get_irn_opname(irn), get_irn_node_nr(irn));
482
483
484
485

	for(i = -1; i < n; i++)
	{
		ir_node *pred = get_irn_n(irn, i);
486
		if(pred == NULL) {
487
			/* Anchor node may have NULL predecessors */
488
			assert(is_Anchor(irn));
489
			fputs("-1 ", env->file);
490
		} else {
491
			fprintf(env->file, "%ld ", get_irn_node_nr(pred));
492
		}
493
494
495
496
497
498
499
500
	}

	fprintf(env->file, "] { ");

	switch(opcode)
	{
		#include "gen_irio_export.inl"
	}
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
	fputs("}\n", env->file);
}

/** Exports the whole irp to the given file in a textual form. */
void ir_export(const char *filename)
{
	io_env_t env;
	int i, n_irgs = get_irp_n_irgs(), n_pseudoirgs = get_irp_n_pseudo_irgs();

	env.file = fopen(filename, "wt");
	if(!env.file)
	{
		perror(filename);
		return;
	}

	fputs("typegraph {\n", env.file);

519
	type_walk_plus_frames(NULL, export_type_or_ent, &env);
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
	/* TODO: Visit frame types and "types for value params"? */

	for(i = 0; i < n_irgs; i++)
	{
		ir_graph *irg = get_irp_irg(i);

		fprintf(env.file, "}\n\nirg %ld {\n", get_entity_nr(get_irg_entity(irg)));

		env.ignoreblocks = 0;
		irg_block_walk_graph(irg, NULL, export_node, &env);

		env.ignoreblocks = 1;
		irg_walk_anchors(irg, NULL, export_node, &env);
	}

	fputs("}\n\nconstirg {\n", env.file);
	walk_const_code(NULL, export_node, &env);
	fputs("}\n", env.file);

	fclose(env.file);
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
}

/** Exports the given irg to the given file. */
void ir_export_irg(ir_graph *irg, const char *filename)
{
	io_env_t env;

	env.file = fopen(filename, "wt");
	if(!env.file)
	{
		perror(filename);
		return;
	}

	fputs("typegraph {\n", env.file);

	type_walk_irg(irg, NULL, export_type_or_ent, &env);

558
	fprintf(env.file, "}\n\nirg %ld {\n", get_entity_nr(get_irg_entity(irg)));
559
560
561
562
563
564
565

	env.ignoreblocks = 0;
	irg_block_walk_graph(irg, NULL, export_node, &env);

	env.ignoreblocks = 1;
	irg_walk_anchors(irg, NULL, export_node, &env);

566
567
568
569
	/* TODO: Only output needed constants */
	fputs("}\n\nconstirg {\n", env.file);
	walk_const_code(NULL, export_node, &env);
	fputs("}\n", env.file);
570
571
572
573

	fclose(env.file);
}

Moritz Kroll's avatar
Moritz Kroll committed
574
575
576
577
578
579
580
581
582
583
584
585
586
587
static void save_lex_state(io_env_t *env, lex_state_t *state)
{
	state->offs = ftell(env->file);
	state->line = env->line;
	state->col  = env->col;
}

static void restore_lex_state(io_env_t *env, lex_state_t *state)
{
	fseek(env->file, state->offs, SEEK_SET);
	env->line = state->line;
	env->col  = state->col;
}

588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
static int read_c(io_env_t *env)
{
	int ch = fgetc(env->file);
	switch(ch)
	{
		case '\t':
			env->col += 4;
			break;

		case '\n':
			env->col = 0;
			env->line++;
			break;

		default:
			env->col++;
			break;
	}
	return ch;
}

/** Returns the first non-whitespace character or EOF. **/
static int skip_ws(io_env_t *env)
{
	while(1)
	{
		int ch = read_c(env);
		switch(ch)
		{
			case ' ':
			case '\t':
			case '\n':
			case '\r':
				break;

			default:
				return ch;
		}
	}
}

static void skip_to(io_env_t *env, char to_ch)
{
	int ch;
	do
	{
		ch = read_c(env);
	}
	while(ch != to_ch && ch != EOF);
}

static int expect_char(io_env_t *env, char ch)
{
	int curch = skip_ws(env);
	if(curch != ch)
	{
		printf("Unexpected char '%c', expected '%c' in line %i:%i\n", curch, ch, env->line, env->col);
		return 0;
	}
	return 1;
}

#define EXPECT(c) if(expect_char(env, (c))) {} else return 0
#define EXPECT_OR_EXIT(c) if(expect_char(env, (c))) {} else exit(1)

inline static const char *read_str_to(io_env_t *env, char *buf, size_t bufsize)
{
	size_t i;
	for(i = 0; i < bufsize - 1; i++)
	{
		int ch = read_c(env);
		if(ch == EOF) break;
		switch(ch)
		{
			case ' ':
			case '\t':
			case '\n':
			case '\r':
				if(i != 0)
					goto endofword;
				i--;	// skip whitespace
				break;

			default:
				buf[i] = ch;
				break;
		}
	}
endofword:
	buf[i] = 0;
	return buf;
}

static const char *read_str(io_env_t *env)
{
	static char buf[1024];
	return read_str_to(env, buf, sizeof(buf));
}

static const char *read_qstr_to(io_env_t *env, char *buf, size_t bufsize)
{
	size_t i;
	EXPECT_OR_EXIT('\"');
	for(i = 0; i < bufsize - 1; i++)
	{
		int ch = read_c(env);
		if(ch == EOF)
		{
			printf("Unexpected end of quoted string!\n");
			exit(1);
		}
		if(ch == '\"') break;

		buf[i] = ch;
	}
	if(i == bufsize - 1)
	{
		printf("Quoted string too long!\n");
		exit(1);
	}
	buf[i] = 0;
	return buf;
}

static long read_long2(io_env_t *env, char **endptr)
{
	static char buf[1024];
	return strtol(read_str_to(env, buf, sizeof(buf)), endptr, 0);
}

static long read_long(io_env_t *env)
{
	return read_long2(env, NULL);
}

static ir_node *get_node_or_null(io_env_t *env, long nodenr)
{
	ir_node *node = (ir_node *) get_id(env, nodenr);
	if(node && node->kind != k_ir_node)
	{
		panic("Irn ID %ld collides with something else in line %i:%i\n", nodenr, env->line, env->col);
	}
	return node;
}

static ir_node *get_node(io_env_t *env, long nodenr)
{
	ir_node *node = get_node_or_null(env, nodenr);
	if(!node)
		panic("Unknown node: %ld in line %i:%i\n", nodenr, env->line, env->col);

	return node;
}

static ir_node *get_node_or_dummy(io_env_t *env, long nodenr)
{
	ir_node *node = get_node_or_null(env, nodenr);
	if(!node)
	{
		node = new_Dummy(mode_X);
		set_id(env, nodenr, node);
	}
	return node;
}

static ir_type *get_type(io_env_t *env, long typenr)
{
	ir_type *type = (ir_type *) get_id(env, typenr);
	if(!type)
	{
		panic("Unknown type: %ld in line %i:%i\n", typenr, env->line, env->col);
	}
	else if(type->kind != k_type)
	{
		panic("Type ID %ld collides with something else in line %i:%i\n", typenr, env->line, env->col);
	}
	return type;
}

static ir_type *read_type(io_env_t *env)
{
	return get_type(env, read_long(env));
}

static ir_entity *get_entity(io_env_t *env, long entnr)
{
	ir_entity *entity = (ir_entity *) get_id(env, entnr);
	if(!entity)
	{
		printf("Unknown entity: %ld in line %i:%i\n", entnr, env->line, env->col);
		exit(1);
	}
	else if(entity->kind != k_entity)
	{
		panic("Entity ID %ld collides with something else in line %i:%i\n", entnr, env->line, env->col);
	}
	return entity;
}

static ir_entity *read_entity(io_env_t *env)
{
	return get_entity(env, read_long(env));
}

static ir_mode *read_mode(io_env_t *env)
{
	static char buf[128];
	int i, n;

	read_str_to(env, buf, sizeof(buf));

	n = get_irp_n_modes();
	for(i = 0; i < n; i++)
	{
		ir_mode *mode = get_irp_mode(i);
		if(!strcmp(buf, get_mode_name(mode)))
			return mode;
	}

	printf("Unknown mode \"%s\" in line %i:%i\n", buf, env->line, env->col);
	return mode_ANY;
}

static const char *get_typetag_name(typetag_t typetag)
{
	switch(typetag)
	{
		case tt_align:       return "align";
		case tt_allocation:  return "allocation";
817
818
819
		case tt_builtin:     return "builtin kind";
		case tt_initializer: return "initializer kind";
		case tt_iro:         return "opcode";
820
821
		case tt_peculiarity: return "peculiarity";
		case tt_pin_state:   return "pin state";
822
		case tt_tpo:         return "type";
823
824
825
826
827
828
829
830
		case tt_type_state:  return "type state";
		case tt_variability: return "variability";
		case tt_visibility:  return "visibility";
		case tt_volatility:  return "volatility";
		default: return "<UNKNOWN>";
	}
}

831
832
833
/**
 * Read and decode an enum constant.
 */
834
835
836
static unsigned read_enum(io_env_t *env, typetag_t typetag)
{
	static char buf[128];
837
838
839
	unsigned code = symbol(read_str_to(env, buf, sizeof(buf)), typetag);
	if(code != SYMERROR)
		return code;
840
841
842
843
844

	printf("Invalid %s: \"%s\" in %i:%i\n", get_typetag_name(typetag), buf, env->line, env->col);
	return 0;
}

845
846
847
848
849
850
851
852
853
#define read_align(env)            ((ir_align)              read_enum(env, tt_align))
#define read_allocation(env)       ((ir_allocation)         read_enum(env, tt_allocation))
#define read_peculiarity(env)      ((ir_peculiarity)        read_enum(env, tt_peculiarity))
#define read_pin_state(env)        ((op_pin_state)          read_enum(env, tt_pin_state))
#define read_type_state(env)       ((ir_type_state)         read_enum(env, tt_type_state))
#define read_variability(env)      ((ir_variability)        read_enum(env, tt_variability))
#define read_visibility(env)       ((ir_visibility)         read_enum(env, tt_visibility))
#define read_volatility(env)       ((ir_volatility)         read_enum(env, tt_volatility))
#define read_initializer_kind(env) ((ir_initializer_kind_t) read_enum(env, tt_initializer))
854
#define read_builtin_kind(env)     ((ir_builtin_kind)       read_enum(env, tt_builtin))
855

856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
static ir_cons_flags get_cons_flags(io_env_t *env)
{
	ir_cons_flags flags = cons_none;

	op_pin_state pinstate = read_pin_state(env);
	switch(pinstate)
	{
		case op_pin_state_floats: flags |= cons_floats; break;
		case op_pin_state_pinned: break;
		default:
			panic("Error in %i:%i: Invalid pinstate: %s", env->line, env->col, get_op_pin_state_name(pinstate));
	}

	if(read_volatility(env) == volatility_is_volatile) flags |= cons_volatile;
	if(read_align(env) == align_non_aligned) flags |= cons_unaligned;

	return flags;
}

875
876
877
878
879
880
881
882
static tarval *read_tv(io_env_t *env)
{
	static char buf[128];
	ir_mode *tvmode = read_mode(env);
	read_str_to(env, buf, sizeof(buf));
	return new_tarval_from_str(buf, strlen(buf), tvmode);
}

883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
static ir_initializer_t *read_initializer(io_env_t *env)
{
	FILE *f = env->file;
	ir_initializer_kind_t ini_kind = read_initializer_kind(env);

	switch(ini_kind)
	{
		case IR_INITIALIZER_CONST:
		{
			ir_node *irn = get_node_or_dummy(env, read_long(env));
			return create_initializer_const(irn);
		}

		case IR_INITIALIZER_TARVAL:
			return create_initializer_tarval(read_tv(env));

		case IR_INITIALIZER_NULL:
			return get_initializer_null();

		case IR_INITIALIZER_COMPOUND:
		{
			unsigned i, n = (unsigned) read_long(env);
			ir_initializer_t *ini = create_initializer_compound(n);
			for(i = 0; i < n; i++)
			{
				ir_initializer_t *curini = read_initializer(env);
				set_initializer_compound_value(ini, i, curini);
			}
			return ini;
		}

		default:
			panic("Unknown initializer kind");
	}
}


920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
/** Reads a type description and remembers it by its id. */
static void import_type(io_env_t *env)
{
	char           buf[1024];
	int            i;
	ir_type       *type;
	long           typenr = read_long(env);
	const char    *tpop   = read_str(env);
	const char    *name   = read_qstr_to(env, buf, sizeof(buf));
	unsigned       size   = (unsigned) read_long(env);
	unsigned       align  = (unsigned) read_long(env);
	ir_type_state  state  = read_type_state(env);
	ir_visibility  vis    = read_visibility(env);

	ident         *id     = new_id_from_str(name);

936
	switch(symbol(tpop, tt_tpo))
937
	{
938
		case tpo_array:
939
		{
940
941
942
943
944
945
946
			int ndims = (int) read_long(env);
			long elemtypenr = read_long(env);
			ir_type *elemtype = get_type(env, elemtypenr);

			type = new_type_array(id, ndims, elemtype);
			for(i = 0; i < ndims; i++)
			{
947
948
949
950
951
952
953
954
955
956
957
958
				const char *str = read_str(env);
				if(strcmp(str, "unknown"))
				{
					long lowerbound = strtol(str, NULL, 0);
					set_array_lower_bound_int(type, i, lowerbound);
				}
				str = read_str(env);
				if(strcmp(str, "unknown"))
				{
					long upperbound = strtol(str, NULL, 0);
					set_array_upper_bound_int(type, i, upperbound);
				}
959
960
			}
			set_type_size_bytes(type, size);
961
962
963
			break;
		}

964
965
966
967
968
		case tpo_class:
			type = new_type_class(id);
			set_type_size_bytes(type, size);
			break;

969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
		case tpo_method:
		{
			int nparams  = (int) read_long(env);
			int nresults = (int) read_long(env);

			type = new_type_method(id, nparams, nresults);

			for(i = 0; i < nparams; i++)
			{
				long     typenr = read_long(env);
				ir_type *paramtype = get_type(env, typenr);

				set_method_param_type(type, i, paramtype);
			}
			for(i = 0; i < nresults; i++)
			{
				long typenr = read_long(env);
				ir_type *restype = get_type(env, typenr);

				set_method_res_type(type, i, restype);
			}
			break;
		}

993
		case tpo_pointer:
994
		{
995
996
997
			ir_mode *mode = read_mode(env);
			ir_type *pointsto = get_type(env, read_long(env));
			type = new_type_pointer(id, pointsto, mode);
998
999
1000
			break;
		}

1001
1002
1003
1004
		case tpo_primitive:
		{
			ir_mode *mode = read_mode(env);
			type = new_type_primitive(id, mode);
1005
			break;
1006
		}
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040

		case tpo_struct:
			type = new_type_struct(id);
			set_type_size_bytes(type, size);
			break;

		case tpo_union:
			type = new_type_union(id);
			set_type_size_bytes(type, size);
			break;

		case tpo_unknown:
			return;   // ignore unknown type

		default:
			if(typenr != 0)  // ignore global type
				printf("Unknown type kind: \"%s\" in line %i:%i\n", tpop, env->line, env->col);
			skip_to(env, '\n');
			return;
	}

	set_type_alignment_bytes(type, align);
	set_type_visibility(type, vis);

	if(state == layout_fixed)
		ARR_APP1(ir_type *, env->fixedtypes, type);

	set_id(env, typenr, type);
	printf("Insert type %s %ld\n", name, typenr);
}

/** Reads an entity description and remembers it by its id. */
static void import_entity(io_env_t *env)
{
1041
	char          buf[1024], buf2[1024];
1042
1043
	long          entnr       = read_long(env);
	const char   *name        = read_qstr_to(env, buf, sizeof(buf));
1044
	const char   *ld_name     = read_qstr_to(env, buf2, sizeof(buf2));
1045
1046
1047
1048
1049
1050
1051
	long          typenr      = read_long(env);
	long          ownertypenr = read_long(env);

	ir_type   *type      = get_type(env, typenr);
	ir_type   *ownertype = !ownertypenr ? get_glob_type() : get_type(env, ownertypenr);
	ir_entity *entity    = new_entity(ownertype, new_id_from_str(name), type);

1052
	if(*ld_name) set_entity_ld_ident(entity, new_id_from_str(ld_name));
1053
1054
1055
1056
1057
1058
1059
1060
	set_entity_offset     (entity, (int) read_long(env));
	set_entity_offset_bits_remainder(entity, (unsigned char) read_long(env));
	set_entity_allocation (entity, read_allocation(env));
	set_entity_visibility (entity, read_visibility(env));
	set_entity_variability(entity, read_variability(env));
	set_entity_peculiarity(entity, read_peculiarity(env));
	set_entity_volatility (entity, read_volatility(env));

1061
1062
1063
1064
1065
	if(get_entity_variability(entity) != variability_uninitialized
		&& get_entity_visibility(entity) != visibility_external_allocated)
	{
		if(is_compound_entity(entity))
		{
1066
1067
			if(!strcmp(read_str_to(env, buf2, sizeof(buf2)), "initializer"))
			{
1068
				set_entity_initializer(entity, read_initializer(env));
1069
1070
			}
			else
1071
			{
1072
1073
1074
1075
1076
1077
1078
				int i, n = (int) read_long(env);
				for(i = 0; i < n; i++)
				{
					ir_entity *member = get_entity(env, read_long(env));
					ir_node   *irn    = get_node_or_dummy(env, read_long(env));
					add_compound_ent_value(entity, irn, member);
				}
1079
1080
1081
1082
1083
1084
1085
1086
1087
			}
		}
		else
		{
			ir_node *irn = get_node_or_dummy(env, read_long(env));
			set_atomic_ent_value(entity, irn);
		}
	}

1088
1089
1090
1091
1092
1093
1094
1095
	set_id(env, entnr, entity);
	printf("Insert entity %s %ld\n", name, entnr);
}

/** Parses the whole type graph. */
static int parse_typegraph(io_env_t *env)
{
	const char *kind;
Moritz Kroll's avatar
Moritz Kroll committed
1096
	lex_state_t oldstate;
1097
1098
1099

	EXPECT('{');

Moritz Kroll's avatar
Moritz Kroll committed
1100
	save_lex_state(env, &oldstate);
1101

1102
1103
	current_ir_graph = get_const_code_irg();

1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
	// parse all types first
	while(1)
	{
		kind = read_str(env);
		if(kind[0] == '}' && !kind[1]) break;

		if(!strcmp(kind, "type"))
			import_type(env);
		else
			skip_to(env, '\n');
	}

	// now parse rest
Moritz Kroll's avatar
Moritz Kroll committed
1117
1118
	restore_lex_state(env, &oldstate);

1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
	while(1)
	{
		kind = read_str(env);
		if(kind[0] == '}' && !kind[1]) break;

		if(!strcmp(kind, "type"))
			skip_to(env, '\n');
		else if(!strcmp(kind, "entity"))
			import_entity(env);
		else
		{
			printf("Type graph element not supported yet: \"%s\"\n", kind);
			skip_to(env, '\n');
		}
	}
	return 1;
}

static int read_node_header(io_env_t *env, long *nodenr, long **preds, const char **nodename)
{
	int numpreds;
	*nodename = read_str(env);
	if((*nodename)[0] == '}' && !(*nodename)[1]) return -1;  // end-of-graph

	*nodenr = read_long(env);

	ARR_RESIZE(ir_node *, *preds, 0);

	EXPECT('[');
	for(numpreds = 0; !feof(env->file); numpreds++)
	{
		char *endptr;
		ARR_APP1(long, *preds, read_long2(env, &endptr));
		if(*endptr == ']') break;
	}
	return numpreds;
}

/** Parses an IRG. */
1158
static int parse_graph(io_env_t *env, ir_graph *irg)
1159
1160
1161
1162
1163
1164
1165
1166
{
	long       *preds = NEW_ARR_F(long, 16);
	ir_node   **prednodes = NEW_ARR_F(ir_node *, 16);
	int         i, numpreds, ret = 1;
	long        nodenr;
	const char *nodename;
	ir_node    *node, *newnode;

1167
	current_ir_graph = irg;
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190

	EXPECT('{');

	while(1)
	{
		numpreds = read_node_header(env, &nodenr, &preds, &nodename);
		if(numpreds == -1) break;  // end-of-graph
		if(!numpreds)
		{
			printf("Node %s %ld is missing predecessors!", nodename, nodenr);
			ret = 0;
			break;
		}

		ARR_RESIZE(ir_node *, prednodes, numpreds);
		for(i = 0; i < numpreds - 1; i++)
			prednodes[i] = get_node_or_dummy(env, preds[i + 1]);

		node = get_node_or_null(env, nodenr);
		newnode = NULL;

		EXPECT('{');

1191
		switch(symbol(nodename, tt_iro))
1192
1193
1194
1195
1196
1197
		{
			case iro_End:
			{
				ir_node *newendblock = get_node(env, preds[0]);
				newnode = get_irg_end(current_ir_graph);
				exchange(get_nodes_block(newnode), newendblock);
1198
1199
				for(i = 0; i < numpreds - 1; i++)
					add_irn_n(newnode, prednodes[i]);
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
				break;
			}

			case iro_Start:
			{
				ir_node *newstartblock = get_node(env, preds[0]);
				newnode = get_irg_start(current_ir_graph);
				exchange(get_nodes_block(newnode), newstartblock);
				break;
			}

			case iro_Block:
			{
				if(preds[0] != nodenr)
				{
					printf("Invalid block: preds[0] != nodenr (%ld != %ld)\n",
						preds[0], nodenr);
					ret = 0;
					goto endloop;
				}

				newnode = new_Block(numpreds - 1, prednodes);
				break;
			}

			case iro_Anchor:
				newnode = current_ir_graph->anchor;
				for(i = 0; i < numpreds - 1; i++)
					set_irn_n(newnode, i, prednodes[i]);
				set_irn_n(newnode, -1, get_node(env, preds[0]));
				break;

			case iro_SymConst:
			{
				long entnr = read_long(env);
				union symconst_symbol sym;
				sym.entity_p = get_entity(env, entnr);
				newnode = new_SymConst(mode_P, sym, symconst_addr_ent);
				break;
			}

			#include "gen_irio_import.inl"

			default:
				goto notsupported;
		}

		EXPECT('}');

		if(!newnode)
		{
notsupported:
1252
			panic("Node type not supported yet: %s in line %i:%i\n", nodename, env->line, env->col);
1253
1254
1255
1256
1257
1258
		}

		if(node)
			exchange(node, newnode);
		/* Always update hash entry to avoid more uses of id nodes */
		set_id(env, nodenr, newnode);
1259
		//printf("Insert %s %ld\n", nodename, nodenr);
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
	}

endloop:
	DEL_ARR_F(preds);
	DEL_ARR_F(prednodes);

	return ret;
}

/** Imports an previously exported textual representation of an (maybe partial) irp */
void ir_import(const char *filename)
{
	int oldoptimize = get_optimize();
	firm_verification_t oldver = get_node_verification_mode();
	io_env_t ioenv;
	io_env_t *env = &ioenv;
	int i, n;

1278
	symtbl_init();
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303

	memset(env, 0, sizeof(*env));
	env->idset = new_set(id_cmp, 128);
	env->fixedtypes = NEW_ARR_F(ir_type *, 0);

	env->file = fopen(filename, "rt");
	if(!env->file)
	{
		perror(filename);
		exit(1);
	}

	set_optimize(0);
	do_node_verification(FIRM_VERIFICATION_OFF);

	while(1)
	{
		const char *str = read_str(env);
		if(!*str) break;
		if(!strcmp(str, "typegraph"))
		{
			if(!parse_typegraph(env)) break;
		}
		else if(!strcmp(str, "irg"))
		{
1304
1305
1306
1307
1308
1309
			ir_graph *irg = new_ir_graph(get_entity(env, read_long(env)), 0);
			if(!parse_graph(env, irg)) break;
		}
		else if(!strcmp(str, "constirg"))
		{
			if(!parse_graph(env, get_const_code_irg())) break;
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
		}
	}

	n = ARR_LEN(env->fixedtypes);
	for(i = 0; i < n; i++)
		set_type_state(env->fixedtypes[i], layout_fixed);

	DEL_ARR_F(env->fixedtypes);

	del_set(env->idset);

	irp_finalize_cons();

	do_node_verification(oldver);
	set_optimize(oldoptimize);

	fclose(env->file);
}