irnode.c 70 KB
Newer Older
Christian Würdig's avatar
Christian Würdig committed
1
/*
Michael Beck's avatar
Michael Beck committed
2
 * Copyright (C) 1995-2008 University of Karlsruhe.  All right reserved.
Christian Würdig's avatar
Christian Würdig committed
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
 *
 * 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.
 */

Matthias Braun's avatar
Matthias Braun committed
20
21
22
23
24
/**
 * @file
 * @brief   Representation of an intermediate operation.
 * @author  Martin Trapp, Christian Schaefer, Goetz Lindenmaier, Michael Beck
 * @version $Id$
Götz Lindenmaier's avatar
Götz Lindenmaier committed
25
 */
Matthias Braun's avatar
Matthias Braun committed
26
#include "config.h"
Michael Beck's avatar
Michael Beck committed
27

28
#include <string.h>
Boris Boesler's avatar
added    
Boris Boesler committed
29

30
#include "pset_new.h"
31
#include "ident.h"
Götz Lindenmaier's avatar
Götz Lindenmaier committed
32
#include "irnode_t.h"
Götz Lindenmaier's avatar
Götz Lindenmaier committed
33
#include "irgraph_t.h"
Götz Lindenmaier's avatar
Götz Lindenmaier committed
34
#include "irmode_t.h"
35
#include "irbackedge_t.h"
36
#include "irdump.h"
37
#include "irop_t.h"
38
#include "irprog_t.h"
Sebastian Hack's avatar
Sebastian Hack committed
39
#include "iredgekinds.h"
Sebastian Hack's avatar
Sebastian Hack committed
40
#include "iredges_t.h"
Matthias Braun's avatar
Matthias Braun committed
41
#include "ircons.h"
Götz Lindenmaier's avatar
Götz Lindenmaier committed
42

43
#include "irhooks.h"
44
#include "irtools.h"
Michael Beck's avatar
Michael Beck committed
45

46
47
#include "beinfo.h"

Götz Lindenmaier's avatar
Götz Lindenmaier committed
48
49
/* some constants fixing the positions of nodes predecessors
   in the in array */
Michael Beck's avatar
Michael Beck committed
50
#define CALL_PARAM_OFFSET     2
51
#define BUILDIN_PARAM_OFFSET  1
Michael Beck's avatar
Michael Beck committed
52
53
54
#define SEL_INDEX_OFFSET      2
#define RETURN_RESULT_OFFSET  1  /* mem is not a result */
#define END_KEEPALIVE_OFFSET  0
Götz Lindenmaier's avatar
Götz Lindenmaier committed
55

56
static const char *pnc_name_arr [] = {
57
58
59
60
	"pn_Cmp_False", "pn_Cmp_Eq", "pn_Cmp_Lt", "pn_Cmp_Le",
	"pn_Cmp_Gt", "pn_Cmp_Ge", "pn_Cmp_Lg", "pn_Cmp_Leg",
	"pn_Cmp_Uo", "pn_Cmp_Ue", "pn_Cmp_Ul", "pn_Cmp_Ule",
	"pn_Cmp_Ug", "pn_Cmp_Uge", "pn_Cmp_Ne", "pn_Cmp_True"
61
};
Christian Schäfer's avatar
Christian Schäfer committed
62

Michael Beck's avatar
Michael Beck committed
63
64
65
/**
 * returns the pnc name from an pnc constant
 */
66
67
const char *get_pnc_string(int pnc)
{
68
69
	assert(pnc >= 0 && pnc <
			(int) (sizeof(pnc_name_arr)/sizeof(pnc_name_arr[0])));
70
	return pnc_name_arr[pnc];
Christian Schäfer's avatar
Christian Schäfer committed
71
72
}

Michael Beck's avatar
Michael Beck committed
73
/*
74
 * Calculates the negated (Complement(R)) pnc condition.
Michael Beck's avatar
Michael Beck committed
75
 */
76
77
pn_Cmp get_negated_pnc(long pnc, ir_mode *mode)
{
78
	pnc ^= pn_Cmp_True;
79

80
81
82
	/* do NOT add the Uo bit for non-floating point values */
	if (! mode_is_float(mode))
		pnc &= ~pn_Cmp_Uo;
83

84
	return (pn_Cmp) pnc;
Christian Schäfer's avatar
Christian Schäfer committed
85
86
}

87
/* Calculates the inversed (R^-1) pnc condition, i.e., "<" --> ">" */
88
89
pn_Cmp get_inversed_pnc(long pnc)
{
90
91
92
	long code    = pnc & ~(pn_Cmp_Lt|pn_Cmp_Gt);
	long lesser  = pnc & pn_Cmp_Lt;
	long greater = pnc & pn_Cmp_Gt;
Michael Beck's avatar
Michael Beck committed
93

94
	code |= (lesser ? pn_Cmp_Gt : 0) | (greater ? pn_Cmp_Lt : 0);
Michael Beck's avatar
Michael Beck committed
95

96
	return (pn_Cmp) code;
Michael Beck's avatar
Michael Beck committed
97
98
}

99
100
101
102
103
104
105
106
107
108
/**
 * Indicates, whether additional data can be registered to ir nodes.
 * If set to 1, this is not possible anymore.
 */
static int forbid_new_data = 0;

/**
 * The amount of additional space for custom data to be allocated upon
 * creating a new node.
 */
109
unsigned firm_add_node_size = 0;
110
111


112
/* register new space for every node */
113
114
unsigned firm_register_additional_node_data(unsigned size)
{
115
	assert(!forbid_new_data && "Too late to register additional node data");
116

117
118
	if (forbid_new_data)
		return 0;
119

120
	return firm_add_node_size += size;
121
122
123
}


124
125
void init_irnode(void)
{
126
127
	/* Forbid the addition of new data to an ir node. */
	forbid_new_data = 1;
Christian Schäfer's avatar
Christian Schäfer committed
128
129
}

130
/*
131
132
133
 * irnode constructor.
 * Create a new irnode in irg, with an op, mode, arity and
 * some incoming irnodes.
134
135
 * If arity is negative, a node with a dynamic array is created.
 */
136
ir_node *
137
138
new_ir_node(dbg_info *db, ir_graph *irg, ir_node *block, ir_op *op, ir_mode *mode,
            int arity, ir_node **in)
Christian Schäfer's avatar
Christian Schäfer committed
139
{
140
141
142
	ir_node *res;
	size_t node_size = offsetof(ir_node, attr) + op->attr_size + firm_add_node_size;
	char *p;
143
	int i;
144

Christoph Mallon's avatar
Christoph Mallon committed
145
146
147
	assert(irg);
	assert(op);
	assert(mode);
148
	p = obstack_alloc(irg->obst, node_size);
149
	memset(p, 0, node_size);
150
	res = (ir_node *)(p + firm_add_node_size);
151
152
153
154
155
156
157
158
159
160

	res->kind     = k_ir_node;
	res->op       = op;
	res->mode     = mode;
	res->visited  = 0;
	res->node_idx = irg_register_node_idx(irg, res);
	res->link     = NULL;
	res->deps     = NULL;

	if (arity < 0) {
161
		res->in = NEW_ARR_F(ir_node *, 1);  /* 1: space for block */
162
	} else {
163
164
		/* not nice but necessary: End and Sync must always have a flexible array */
		if (op == op_End || op == op_Sync)
165
166
167
			res->in = NEW_ARR_F(ir_node *, (arity+1));
		else
			res->in = NEW_ARR_D(ir_node *, irg->obst, (arity+1));
168
		memcpy(&res->in[1], in, sizeof(ir_node *) * arity);
169
170
	}

171
	res->in[0]   = block;
172
	set_irn_dbg_info(res, db);
173
	res->out     = NULL;
174
	res->node_nr = get_irp_new_node_nr();
Götz Lindenmaier's avatar
Götz Lindenmaier committed
175

Michael Beck's avatar
Michael Beck committed
176
	for (i = 0; i < EDGE_KIND_LAST; ++i) {
177
		INIT_LIST_HEAD(&res->edge_info[i].outs_head);
Michael Beck's avatar
Michael Beck committed
178
179
180
181
		/* edges will be build immediately */
		res->edge_info[i].edges_built = 1;
		res->edge_info[i].out_count = 0;
	}
182

183
	/* don't put this into the for loop, arity is -1 for some nodes! */
184
185
	edges_notify_edge(res, -1, res->in[0], NULL, irg);
	for (i = 1; i <= arity; ++i)
186
		edges_notify_edge(res, i - 1, res->in[i], NULL, irg);
Sebastian Hack's avatar
Sebastian Hack committed
187

188
	hook_new_node(irg, res);
189
190
191
	if (get_irg_phase_state(irg) == phase_backend) {
		be_info_new_node(res);
	}
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
	// Init the VRP structures
	res->vrp.range_type = VRP_UNDEFINED;
	res->vrp.valid = 0;
	if(mode_is_int(mode)) {
		// We are assuming that 0 is always represented as 0x0000
		res->vrp.bits_set = new_tarval_from_long(0, mode);
		res->vrp.bits_not_set = new_tarval_from_long(0, mode);
		res->vrp.range_bottom = get_tarval_top();
		res->vrp.range_top = get_tarval_top();
	} else {
		res->vrp.bits_set = get_tarval_bad();
		res->vrp.bits_not_set = get_tarval_bad();
		res->vrp.range_bottom = get_tarval_bad();
		res->vrp.range_top = get_tarval_bad();
	}
	res->vrp.bits_node = NULL;
	res->vrp.range_node = NULL;
	res->vrp.range_op = VRP_NONE;

Michael Beck's avatar
Michael Beck committed
211

212
	return res;
Christian Schäfer's avatar
Christian Schäfer committed
213
214
}

Michael Beck's avatar
Michael Beck committed
215
/*-- getting some parameters from ir_nodes --*/
Christian Schäfer's avatar
Christian Schäfer committed
216

217
218
int (is_ir_node)(const void *thing)
{
219
	return _is_ir_node(thing);
Sebastian Felis's avatar
Sebastian Felis committed
220
221
}

222
223
int (get_irn_intra_arity)(const ir_node *node)
{
224
	return _get_irn_intra_arity(node);
Christian Schäfer's avatar
Christian Schäfer committed
225
226
}

227
228
int (get_irn_inter_arity)(const ir_node *node)
{
229
	return _get_irn_inter_arity(node);
230
231
}

232
int (*_get_irn_arity)(const ir_node *node) = _get_irn_intra_arity;
233

234
235
int (get_irn_arity)(const ir_node *node)
{
236
	return _get_irn_arity(node);
237
238
}

239
240
241
242
243
244
/* Returns the array with ins. This array is shifted with respect to the
   array accessed by get_irn_n: The block operand is at position 0 not -1.
   (@@@ This should be changed.)
   The order of the predecessors in this array is not guaranteed, except that
   lists of operands as predecessors of Block or arguments of a Call are
   consecutive. */
245
246
ir_node **get_irn_in(const ir_node *node)
{
247
	assert(node);
248
#ifdef INTERPROCEDURAL_VIEW
249
250
251
252
253
254
255
256
257
	if (get_interprocedural_view()) { /* handle Filter and Block specially */
		if (get_irn_opcode(node) == iro_Filter) {
			assert(node->attr.filter.in_cg);
			return node->attr.filter.in_cg;
		} else if (get_irn_opcode(node) == iro_Block && node->attr.block.in_cg) {
			return node->attr.block.in_cg;
		}
		/* else fall through */
	}
258
#endif /* INTERPROCEDURAL_VIEW */
259
260
261
	return node->in;
}

262
263
void set_irn_in(ir_node *node, int arity, ir_node **in)
{
264
	int i;
Michael Beck's avatar
Michael Beck committed
265
	ir_node *** pOld_in;
266
	ir_graph *irg = get_irn_irg(node);
267

268
	assert(node);
269
#ifdef INTERPROCEDURAL_VIEW
270
	if (get_interprocedural_view()) { /* handle Filter and Block specially */
Michael Beck's avatar
Michael Beck committed
271
272
		ir_opcode code = get_irn_opcode(node);
		if (code  == iro_Filter) {
273
			assert(node->attr.filter.in_cg);
Michael Beck's avatar
Michael Beck committed
274
275
276
			pOld_in = &node->attr.filter.in_cg;
		} else if (code == iro_Block && node->attr.block.in_cg) {
			pOld_in = &node->attr.block.in_cg;
277
		} else {
Michael Beck's avatar
Michael Beck committed
278
			pOld_in = &node->in;
279
		}
280
281
	} else
#endif /* INTERPROCEDURAL_VIEW */
Michael Beck's avatar
Michael Beck committed
282
		pOld_in = &node->in;
283

284
285

	for (i = 0; i < arity; i++) {
Michael Beck's avatar
Michael Beck committed
286
287
		if (i < ARR_LEN(*pOld_in)-1)
			edges_notify_edge(node, i, in[i], (*pOld_in)[i+1], irg);
288
		else
Michael Beck's avatar
Michael Beck committed
289
			edges_notify_edge(node, i, in[i], NULL,            irg);
290
	}
Michael Beck's avatar
Michael Beck committed
291
292
	for (;i < ARR_LEN(*pOld_in)-1; i++) {
		edges_notify_edge(node, i, NULL, (*pOld_in)[i+1], irg);
293
294
	}

Michael Beck's avatar
Michael Beck committed
295
296
297
298
	if (arity != ARR_LEN(*pOld_in) - 1) {
		ir_node * block = (*pOld_in)[0];
		*pOld_in = NEW_ARR_D(ir_node *, irg->obst, arity + 1);
		(*pOld_in)[0] = block;
299
300
301
	}
	fix_backedges(irg->obst, node);

Michael Beck's avatar
Michael Beck committed
302
	memcpy((*pOld_in) + 1, in, sizeof(ir_node *) * arity);
303
304
}

305
306
ir_node *(get_irn_intra_n)(const ir_node *node, int n)
{
Michael Beck's avatar
Michael Beck committed
307
	return _get_irn_intra_n(node, n);
308
309
}

310
311
ir_node *(get_irn_inter_n)(const ir_node *node, int n)
{
Michael Beck's avatar
Michael Beck committed
312
	return _get_irn_inter_n(node, n);
313
314
}

315
ir_node *(*_get_irn_n)(const ir_node *node, int n) = _get_irn_intra_n;
316

317
318
ir_node *(get_irn_n)(const ir_node *node, int n)
{
319
	return _get_irn_n(node, n);
Christian Schäfer's avatar
Christian Schäfer committed
320
321
}

322
323
void set_irn_n(ir_node *node, int n, ir_node *in)
{
324
325
326
327
328
	assert(node && node->kind == k_ir_node);
	assert(-1 <= n);
	assert(n < get_irn_arity(node));
	assert(in && in->kind == k_ir_node);

329
#ifdef INTERPROCEDURAL_VIEW
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
	if ((n == -1) && (get_irn_opcode(node) == iro_Filter)) {
		/* Change block pred in both views! */
		node->in[n + 1] = in;
		assert(node->attr.filter.in_cg);
		node->attr.filter.in_cg[n + 1] = in;
		return;
	}
	if (get_interprocedural_view()) { /* handle Filter and Block specially */
		if (get_irn_opcode(node) == iro_Filter) {
			assert(node->attr.filter.in_cg);
			node->attr.filter.in_cg[n + 1] = in;
			return;
		} else if (get_irn_opcode(node) == iro_Block && node->attr.block.in_cg) {
			node->attr.block.in_cg[n + 1] = in;
			return;
		}
		/* else fall through */
	}
348
#endif /* INTERPROCEDURAL_VIEW */
349
350
351
352
353
354
355
356

	/* Call the hook */
	hook_set_irn_n(node, n, in, node->in[n + 1]);

	/* Here, we rely on src and tgt being in the current ir graph */
	edges_notify_edge(node, n, in, node->in[n + 1], current_ir_graph);

	node->in[n + 1] = in;
Christian Schäfer's avatar
Christian Schäfer committed
357
358
}

359
360
int add_irn_n(ir_node *node, ir_node *in)
{
361
362
363
364
365
366
367
368
	int pos;
	ir_graph *irg = get_irn_irg(node);

	assert(node->op->opar == oparity_dynamic);
	pos = ARR_LEN(node->in) - 1;
	ARR_APP1(ir_node *, node->in, in);
	edges_notify_edge(node, pos, node->in[pos + 1], NULL, irg);

369
370
371
	/* Call the hook */
	hook_set_irn_n(node, pos, node->in[pos + 1], NULL);

372
373
374
	return pos;
}

Christoph Mallon's avatar
Christoph Mallon committed
375
376
377
378
379
380
381
382
383
void del_Sync_n(ir_node *n, int i)
{
	int      arity     = get_Sync_n_preds(n);
	ir_node *last_pred = get_Sync_pred(n, arity - 1);
	set_Sync_pred(n, i, last_pred);
	edges_notify_edge(n, arity - 1, NULL, last_pred, get_irn_irg(n));
	ARR_SHRINKLEN(get_irn_in(n), arity);
}

384
385
int (get_irn_deps)(const ir_node *node)
{
Sebastian Hack's avatar
Sebastian Hack committed
386
387
388
	return _get_irn_deps(node);
}

389
390
ir_node *(get_irn_dep)(const ir_node *node, int pos)
{
Sebastian Hack's avatar
Sebastian Hack committed
391
392
393
	return _get_irn_dep(node, pos);
}

394
395
void (set_irn_dep)(ir_node *node, int pos, ir_node *dep)
{
Sebastian Hack's avatar
Sebastian Hack committed
396
397
398
	_set_irn_dep(node, pos, dep);
}

399
400
int add_irn_dep(ir_node *node, ir_node *dep)
{
Sebastian Hack's avatar
Sebastian Hack committed
401
402
	int res = 0;

403
404
	/* DEP edges are only allowed in backend phase */
	assert(get_irg_phase_state(get_irn_irg(node)) == phase_backend);
Sebastian Hack's avatar
Sebastian Hack committed
405
406
407
	if (node->deps == NULL) {
		node->deps = NEW_ARR_F(ir_node *, 1);
		node->deps[0] = dep;
408
	} else {
Sebastian Hack's avatar
Sebastian Hack committed
409
410
411
412
413
414
415
416
417
418
419
		int i, n;
		int first_zero = -1;

		for(i = 0, n = ARR_LEN(node->deps); i < n; ++i) {
			if(node->deps[i] == NULL)
				first_zero = i;

			if(node->deps[i] == dep)
				return i;
		}

420
		if (first_zero >= 0) {
Sebastian Hack's avatar
Sebastian Hack committed
421
422
			node->deps[first_zero] = dep;
			res = first_zero;
423
		} else {
Sebastian Hack's avatar
Sebastian Hack committed
424
425
426
427
428
429
430
431
432
433
			ARR_APP1(ir_node *, node->deps, dep);
			res = n;
		}
	}

	edges_notify_edge_kind(node, res, dep, NULL, EDGE_KIND_DEP, get_irn_irg(node));

	return res;
}

434
435
void add_irn_deps(ir_node *tgt, ir_node *src)
{
Sebastian Hack's avatar
Sebastian Hack committed
436
437
	int i, n;

438
	for (i = 0, n = get_irn_deps(src); i < n; ++i)
Sebastian Hack's avatar
Sebastian Hack committed
439
440
441
442
		add_irn_dep(tgt, get_irn_dep(src, i));
}


443
444
ir_mode *(get_irn_mode)(const ir_node *node)
{
445
	return _get_irn_mode(node);
Christian Schäfer's avatar
Christian Schäfer committed
446
447
}

448
449
void (set_irn_mode)(ir_node *node, ir_mode *mode)
{
450
	_set_irn_mode(node, mode);
Till Riedel's avatar
Till Riedel committed
451
452
}

453
/** Gets the string representation of the mode .*/
454
455
const char *get_irn_modename(const ir_node *node)
{
456
457
	assert(node);
	return get_mode_name(node->mode);
458
}
Götz Lindenmaier's avatar
Götz Lindenmaier committed
459

460
461
ident *get_irn_modeident(const ir_node *node)
{
462
463
	assert(node);
	return get_mode_ident(node->mode);
Götz Lindenmaier's avatar
Götz Lindenmaier committed
464
465
}

466
467
ir_op *(get_irn_op)(const ir_node *node)
{
468
	return _get_irn_op(node);
Christian Schäfer's avatar
Christian Schäfer committed
469
470
471
}

/* should be private to the library: */
472
473
void (set_irn_op)(ir_node *node, ir_op *op)
{
474
	_set_irn_op(node, op);
Christian Schäfer's avatar
Christian Schäfer committed
475
476
}

477
478
unsigned (get_irn_opcode)(const ir_node *node)
{
479
	return _get_irn_opcode(node);
Götz Lindenmaier's avatar
Götz Lindenmaier committed
480
481
}

482
483
const char *get_irn_opname(const ir_node *node)
{
484
	assert(node);
485
	if (is_Phi0(node)) return "Phi0";
486
	return get_id_str(node->op->name);
Götz Lindenmaier's avatar
Götz Lindenmaier committed
487
488
}

489
490
ident *get_irn_opident(const ir_node *node)
{
491
492
	assert(node);
	return node->op->name;
493
494
}

495
496
ir_visited_t (get_irn_visited)(const ir_node *node)
{
497
	return _get_irn_visited(node);
498
499
}

500
501
void (set_irn_visited)(ir_node *node, ir_visited_t visited)
{
502
	_set_irn_visited(node, visited);
Christian Schäfer's avatar
Christian Schäfer committed
503
}
504

505
506
void (mark_irn_visited)(ir_node *node)
{
507
	_mark_irn_visited(node);
508
509
}

510
511
int (irn_visited)(const ir_node *node)
{
512
	return _irn_visited(node);
513
514
}

515
516
int (irn_visited_else_mark)(ir_node *node)
{
517
518
519
	return _irn_visited_else_mark(node);
}

520
521
void (set_irn_link)(ir_node *node, void *link)
{
522
	_set_irn_link(node, link);
Christian Schäfer's avatar
Christian Schäfer committed
523
524
}

525
526
void *(get_irn_link)(const ir_node *node)
{
527
	return _get_irn_link(node);
Christian Schäfer's avatar
Christian Schäfer committed
528
529
}

530
531
op_pin_state (get_irn_pinned)(const ir_node *node)
{
532
	return _get_irn_pinned(node);
533
534
}

535
536
op_pin_state (is_irn_pinned_in_irg) (const ir_node *node)
{
537
	return _is_irn_pinned_in_irg(node);
538
539
}

540
541
void set_irn_pinned(ir_node *node, op_pin_state state)
{
542
	/* due to optimization an opt may be turned into a Tuple */
543
	if (is_Tuple(node))
544
		return;
Michael Beck's avatar
Michael Beck committed
545

546
547
	assert(node && get_op_pinned(get_irn_op(node)) >= op_pin_state_exc_pinned);
	assert(state == op_pin_state_pinned || state == op_pin_state_floats);
Michael Beck's avatar
Michael Beck committed
548

549
	node->attr.except.pin_state = state;
Michael Beck's avatar
Michael Beck committed
550
}
Götz Lindenmaier's avatar
Götz Lindenmaier committed
551

Götz Lindenmaier's avatar
Götz Lindenmaier committed
552
/* Outputs a unique number for this node */
553
554
long get_irn_node_nr(const ir_node *node)
{
555
556
	assert(node);
	return node->node_nr;
557
}
Götz Lindenmaier's avatar
Götz Lindenmaier committed
558

559
560
const_attr *get_irn_const_attr(ir_node *node)
{
561
	assert(is_Const(node));
562
	return &node->attr.con;
Christian Schäfer's avatar
Christian Schäfer committed
563
564
}

565
566
long get_irn_proj_attr(ir_node *node)
{
567
	/* BEWARE: check for true Proj node here, no Filter */
568
569
	assert(node->op == op_Proj);
	return node->attr.proj;
Christian Schäfer's avatar
Christian Schäfer committed
570
571
}

572
573
alloc_attr *get_irn_alloc_attr(ir_node *node)
{
574
	assert(is_Alloc(node));
575
	return &node->attr.alloc;
Christian Schäfer's avatar
Christian Schäfer committed
576
577
}

578
579
free_attr *get_irn_free_attr(ir_node *node)
{
580
	assert(is_Free(node));
581
	return &node->attr.free;
Christian Schäfer's avatar
Christian Schäfer committed
582
583
}

584
585
symconst_attr *get_irn_symconst_attr(ir_node *node)
{
586
	assert(is_SymConst(node));
587
	return &node->attr.symc;
Christian Schäfer's avatar
Christian Schäfer committed
588
589
}

590
591
call_attr *get_irn_call_attr(ir_node *node)
{
592
	assert(is_Call(node));
593
	return &node->attr.call;
Christian Schäfer's avatar
Christian Schäfer committed
594
595
}

596
597
sel_attr *get_irn_sel_attr(ir_node *node)
{
598
	assert(is_Sel(node));
599
	return &node->attr.sel;
Christian Schäfer's avatar
Christian Schäfer committed
600
601
}

602
603
phi_attr *get_irn_phi_attr(ir_node *node)
{
604
	return &node->attr.phi;
Christian Schäfer's avatar
Christian Schäfer committed
605
606
}

607
608
block_attr *get_irn_block_attr(ir_node *node)
{
609
	assert(is_Block(node));
610
	return &node->attr.block;
Christian Schäfer's avatar
Christian Schäfer committed
611
612
}

613
614
load_attr *get_irn_load_attr(ir_node *node)
{
615
	assert(is_Load(node));
616
	return &node->attr.load;
617
618
}

619
620
store_attr *get_irn_store_attr(ir_node *node)
{
621
	assert(is_Store(node));
622
	return &node->attr.store;
623
624
}

625
626
except_attr *get_irn_except_attr(ir_node *node)
{
627
	assert(node->op == op_Div || node->op == op_Quot ||
628
	       node->op == op_DivMod || node->op == op_Mod || node->op == op_Call || node->op == op_Alloc || node->op == op_Bound);
629
	return &node->attr.except;
630
631
}

632
633
divmod_attr *get_irn_divmod_attr(ir_node *node)
{
634
635
636
637
638
	assert(node->op == op_Div || node->op == op_Quot ||
	       node->op == op_DivMod || node->op == op_Mod);
	return &node->attr.divmod;
}

639
640
builtin_attr *get_irn_builtin_attr(ir_node *node)
{
641
642
643
644
	assert(is_Builtin(node));
	return &node->attr.builtin;
}

645
646
void *(get_irn_generic_attr)(ir_node *node)
{
647
648
	assert(is_ir_node(node));
	return _get_irn_generic_attr(node);
649
650
}

651
652
const void *(get_irn_generic_attr_const)(const ir_node *node)
{
653
654
655
656
	assert(is_ir_node(node));
	return _get_irn_generic_attr_const(node);
}

657
658
unsigned (get_irn_idx)(const ir_node *node)
{
659
660
	assert(is_ir_node(node));
	return _get_irn_idx(node);
661
662
}

663
664
int get_irn_pred_pos(ir_node *node, ir_node *arg)
{
665
666
667
668
669
670
	int i;
	for (i = get_irn_arity(node) - 1; i >= 0; i--) {
		if (get_irn_n(node, i) == arg)
			return i;
	}
	return -1;
671
672
}

Christian Schäfer's avatar
Christian Schäfer committed
673
674
/** manipulate fields of individual nodes **/

675
/* this works for all except Block */
676
677
ir_node *get_nodes_block(const ir_node *node)
{
678
679
	assert(node->op != op_Block);
	return get_irn_n(node, -1);
Christian Schäfer's avatar
Christian Schäfer committed
680
681
}

682
683
void set_nodes_block(ir_node *node, ir_node *block)
{
684
685
	assert(node->op != op_Block);
	set_irn_n(node, -1, block);
Christian Schäfer's avatar
Christian Schäfer committed
686
687
}

Michael Beck's avatar
Michael Beck committed
688
/* this works for all except Block */
689
690
ir_node *get_nodes_MacroBlock(const ir_node *node)
{
Michael Beck's avatar
Michael Beck committed
691
692
693
694
	assert(node->op != op_Block);
	return get_Block_MacroBlock(get_irn_n(node, -1));
}

695
696
/* Test whether arbitrary node is frame pointer, i.e. Proj(pn_Start_P_frame_base)
 * from Start.  If so returns frame type, else Null. */
697
698
ir_type *is_frame_pointer(const ir_node *n)
{
699
700
	if (is_Proj(n) && (get_Proj_proj(n) == pn_Start_P_frame_base)) {
		ir_node *start = get_Proj_pred(n);
701
		if (is_Start(start)) {
702
703
704
705
			return get_irg_frame_type(get_irn_irg(start));
		}
	}
	return NULL;
706
707
}

708
709
/* Test whether arbitrary node is tls pointer, i.e. Proj(pn_Start_P_tls)
 * from Start.  If so returns tls type, else Null. */
710
711
ir_type *is_tls_pointer(const ir_node *n)
{
712
	if (is_Proj(n) && (get_Proj_proj(n) == pn_Start_P_tls)) {
713
		ir_node *start = get_Proj_pred(n);
714
		if (is_Start(start)) {
715
716
717
718
			return get_tls_type();
		}
	}
	return NULL;
719
720
}

721
722
ir_node **get_Block_cfgpred_arr(ir_node *node)
{
723
	assert(is_Block(node));
724
	return (ir_node **)&(get_irn_in(node)[1]);
725
726
}

727
728
int (get_Block_n_cfgpreds)(const ir_node *node)
{
729
	return _get_Block_n_cfgpreds(node);
Christian Schäfer's avatar
Christian Schäfer committed
730
731
}

732
733
ir_node *(get_Block_cfgpred)(const ir_node *node, int pos)
{
734
	return _get_Block_cfgpred(node, pos);
Christian Schäfer's avatar
Christian Schäfer committed
735
736
}

737
738
void set_Block_cfgpred(ir_node *node, int pos, ir_node *pred)
{
739
	assert(is_Block(node));
740
	set_irn_n(node, pos, pred);
Christian Schäfer's avatar
Christian Schäfer committed
741
742
}

743
744
int get_Block_cfgpred_pos(const ir_node *block, const ir_node *pred)
{
745
746
747
748
749
750
751
752
753
	int i;

	for (i = get_Block_n_cfgpreds(block) - 1; i >= 0; --i) {
		if (get_Block_cfgpred_block(block, i) == pred)
			return i;
	}
	return -1;
}

754
755
ir_node *(get_Block_cfgpred_block)(const ir_node *node, int pos)
{
756
	return _get_Block_cfgpred_block(node, pos);
757
758
}

759
760
int get_Block_matured(const ir_node *node)
{
761
	assert(is_Block(node));
Michael Beck's avatar
Michael Beck committed
762
	return (int)node->attr.block.is_matured;
Christian Schäfer's avatar
Christian Schäfer committed
763
764
}

765
766
void set_Block_matured(ir_node *node, int matured)
{
767
	assert(is_Block(node));
Michael Beck's avatar
Michael Beck committed
768
	node->attr.block.is_matured = matured;
Christian Schäfer's avatar
Christian Schäfer committed
769
}
Michael Beck's avatar
Michael Beck committed
770

771
772
ir_visited_t (get_Block_block_visited)(const ir_node *node)
{
773
	return _get_Block_block_visited(node);
Christian Schäfer's avatar
Christian Schäfer committed
774
775
}

776
777
void (set_Block_block_visited)(ir_node *node, ir_visited_t visit)
{
778
	_set_Block_block_visited(node, visit);
Christian Schäfer's avatar
Christian Schäfer committed
779
780
}

Götz Lindenmaier's avatar
Götz Lindenmaier committed
781
/* For this current_ir_graph must be set. */
782
783
void (mark_Block_block_visited)(ir_node *node)
{
784
	_mark_Block_block_visited(node);
Götz Lindenmaier's avatar
Götz Lindenmaier committed
785
786
}

787
788
int (Block_block_visited)(const ir_node *node)
{
Matthias Braun's avatar
Matthias Braun committed
789
790
791
	return _Block_block_visited(node);
}

792
793
ir_node *get_Block_graph_arr(ir_node *node, int pos)
{
794
	assert(is_Block(node));
795
	return node->attr.block.graph_arr[pos+1];
Christian Schäfer's avatar
Christian Schäfer committed
796
797
}

798
799
void set_Block_graph_arr(ir_node *node, int pos, ir_node *value)
{
800
	assert(is_Block(node));
801
	node->attr.block.graph_arr[pos+1] = value;
Christian Schäfer's avatar
Christian Schäfer committed
802
}
803

804
#ifdef INTERPROCEDURAL_VIEW
805
806
void set_Block_cg_cfgpred_arr(ir_node *node, int arity, ir_node *in[])
{
807
	assert(is_Block(node));
808
809
810
811
812
813
814
815
816
817
818
819
820
821
	if (node->attr.block.in_cg == NULL || arity != ARR_LEN(node->attr.block.in_cg) - 1) {
		node->attr.block.in_cg = NEW_ARR_D(ir_node *, current_ir_graph->obst, arity + 1);
		node->attr.block.in_cg[0] = NULL;
		node->attr.block.cg_backedge = new_backedge_arr(current_ir_graph->obst, arity);
		{
			/* Fix backedge array.  fix_backedges() operates depending on
			   interprocedural_view. */
			int ipv = get_interprocedural_view();
			set_interprocedural_view(1);
			fix_backedges(current_ir_graph->obst, node);
			set_interprocedural_view(ipv);
		}
	}
	memcpy(node->attr.block.in_cg + 1, in, sizeof(ir_node *) * arity);
822
823
}

824
825
void set_Block_cg_cfgpred(ir_node *node, int pos, ir_node *pred)
{
826
	assert(is_Block(node) && node->attr.block.in_cg &&
827
828
	       0 <= pos && pos < ARR_LEN(node->attr.block.in_cg) - 1);
	node->attr.block.in_cg[pos + 1] = pred;
829
830
}

831
832
ir_node **get_Block_cg_cfgpred_arr(ir_node *node)
{
833
	assert(is_Block(node));
834
	return node->attr.block.in_cg == NULL ? NULL : node->attr.block.in_cg  + 1;
835
836
}

837
838
int get_Block_cg_n_cfgpreds(const ir_node *node)
{
839
	assert(is_Block(node));
840
	return node->attr.block.in_cg == NULL ? 0 : ARR_LEN(node->attr.block.in_cg) - 1;
841
842
}

843
844
ir_node *get_Block_cg_cfgpred(const ir_node *node, int pos)
{
845
	assert(is_Block(node) && node->attr.block.in_cg);
846
	return node->attr.block.in_cg[pos + 1];
847
848
}

849
850
void remove_Block_cg_cfgpred_arr(ir_node *node)
{
851
	assert(is_Block(node));
852
	node->attr.block.in_cg = NULL;
853
}
854
#endif /* INTERPROCEDURAL_VIEW */
855

856
857
ir_node *(set_Block_dead)(ir_node *block)
{
858
	return _set_Block_dead(block);
859
860
}

861
862
int (is_Block_dead)(const ir_node *block)
{
863
	return _is_Block_dead(block);
864
865
}

866
867
ir_extblk *get_Block_extbb(const ir_node *block)
{
Michael Beck's avatar
Michael Beck committed
868
	ir_extblk *res;
869
	assert(is_Block(block));
Michael Beck's avatar
Michael Beck committed
870
871
	res = block->attr.block.extblk;
	assert(res == NULL || is_ir_extbb(res));
872
	return res;
873
874
}

875
876
void set_Block_extbb(ir_node *block, ir_extblk *extblk)
{
877
	assert(is_Block(block));
Michael Beck's avatar
Michael Beck committed
878
	assert(extblk == NULL || is_ir_extbb(extblk));
879
	block->attr.block.extblk = extblk;
880
881
}

Michael Beck's avatar
Michael Beck committed
882
/* Returns the macro block header of a block.*/
883
884
ir_node *get_Block_MacroBlock(const ir_node *block)
{
885
	ir_node *mbh;
Michael Beck's avatar
Michael Beck committed
886
	assert(is_Block(block));