benode.c 38.1 KB
Newer Older
Christian Würdig's avatar
Christian Würdig committed
1
/*
Michael Beck's avatar
Michael Beck committed
2
 * Copyright (C) 1995-2011 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.
 */

Sebastian Hack's avatar
Sebastian Hack committed
20
/**
Christian Würdig's avatar
Christian Würdig committed
21
22
23
24
 * @file
 * @brief       Backend node support for generic backend nodes.
 * @author      Sebastian Hack
 * @date        17.05.2005
Sebastian Hack's avatar
Sebastian Hack committed
25
 *
26
 * Backend node support for generic backend nodes.
Michael Beck's avatar
Michael Beck committed
27
 * This file provides Perm, Copy, Spill and Reload nodes.
Sebastian Hack's avatar
Sebastian Hack committed
28
 */
29
#include "config.h"
Sebastian Hack's avatar
Sebastian Hack committed
30
31
32

#include <stdlib.h>

33
#include "beirg.h"
Sebastian Hack's avatar
Sebastian Hack committed
34
35
36
#include "obst.h"
#include "set.h"
#include "pmap.h"
37
#include "util.h"
Sebastian Hack's avatar
Sebastian Hack committed
38
#include "debug.h"
39
#include "fourcc.h"
Sebastian Hack's avatar
Sebastian Hack committed
40
#include "bitfiddle.h"
Matthias Braun's avatar
Matthias Braun committed
41
#include "raw_bitset.h"
42
#include "error.h"
43
#include "array_t.h"
Sebastian Hack's avatar
Sebastian Hack committed
44
45
46
47

#include "irop_t.h"
#include "irmode_t.h"
#include "irnode_t.h"
48
#include "ircons_t.h"
49
#include "irprintf.h"
Sebastian Hack's avatar
Sebastian Hack committed
50
#include "irgwalk.h"
Michael Beck's avatar
Michael Beck committed
51
#include "iropt_t.h"
52
53
#include "irbackedge_t.h"
#include "irverify_t.h"
Sebastian Hack's avatar
Sebastian Hack committed
54

55
56
#include "be_t.h"
#include "belive_t.h"
57
#include "besched.h"
58
#include "benode.h"
59
#include "bearch.h"
Sebastian Hack's avatar
Sebastian Hack committed
60

61
62
#include "beirgmod.h"

63
64
65
66
typedef struct be_node_attr_t {
	except_attr  exc;
} be_node_attr_t;

67
68
/** The be_Return nodes attribute type. */
typedef struct {
69
	be_node_attr_t base;
Matthias Braun's avatar
Matthias Braun committed
70
71
72
	int            num_ret_vals; /**< number of return values */
	unsigned       pop;          /**< number of bytes that should be popped */
	int            emit_pop;     /**< if set, emit pop bytes, even if pop = 0 */
73
74
} be_return_attr_t;

Michael Beck's avatar
Michael Beck committed
75
/** The be_IncSP attribute type. */
Sebastian Hack's avatar
Sebastian Hack committed
76
typedef struct {
77
	be_node_attr_t base;
Matthias Braun's avatar
Matthias Braun committed
78
79
80
81
	int            offset;    /**< The offset by which the stack shall be
	                               expanded/shrinked. */
	int            align;     /**< whether stack should be aligned after the
	                               IncSP */
Michael Beck's avatar
Michael Beck committed
82
} be_incsp_attr_t;
Sebastian Hack's avatar
Sebastian Hack committed
83

84
/** The be_Frame attribute type. */
85
typedef struct {
86
	be_node_attr_t  base;
87
88
	ir_entity      *ent;
	int             offset;
89
90
} be_frame_attr_t;

91
/** The be_Call attribute type. */
92
typedef struct {
93
	be_node_attr_t  base;
Matthias Braun's avatar
Matthias Braun committed
94
	ir_entity      *ent;        /**< called entity if this is a static call. */
95
	unsigned        pop;
Matthias Braun's avatar
Matthias Braun committed
96
	ir_type        *call_tp;    /**< call type, copied from the original Call */
97
98
} be_call_attr_t;

99
typedef struct {
100
101
102
	be_node_attr_t base;
	ir_entity    **in_entities;
	ir_entity    **out_entities;
Matthias Braun's avatar
Matthias Braun committed
103
} be_memperm_attr_t;
104

105
106
107
ir_op *op_be_Spill;
ir_op *op_be_Reload;
ir_op *op_be_Perm;
Matthias Braun's avatar
Matthias Braun committed
108
ir_op *op_be_MemPerm;
109
110
ir_op *op_be_Copy;
ir_op *op_be_Keep;
Sebastian Hack's avatar
Sebastian Hack committed
111
ir_op *op_be_CopyKeep;
112
113
114
ir_op *op_be_Call;
ir_op *op_be_Return;
ir_op *op_be_IncSP;
Sebastian Hack's avatar
Sebastian Hack committed
115
ir_op *op_be_AddSP;
Michael Beck's avatar
Michael Beck committed
116
ir_op *op_be_SubSP;
117
ir_op *op_be_Start;
118
ir_op *op_be_FrameAddr;
Sebastian Hack's avatar
Sebastian Hack committed
119

Michael Beck's avatar
Michael Beck committed
120
/**
Michael Beck's avatar
Michael Beck committed
121
 * Compare the attributes of two be_FrameAddr nodes.
Michael Beck's avatar
Michael Beck committed
122
 *
Michael Beck's avatar
Michael Beck committed
123
 * @return zero if both nodes have identically attributes
Michael Beck's avatar
Michael Beck committed
124
 */
Michael Beck's avatar
Michael Beck committed
125
static int FrameAddr_cmp_attr(const ir_node *a, const ir_node *b)
126
{
127
128
	const be_frame_attr_t *a_attr = (const be_frame_attr_t*)get_irn_generic_attr_const(a);
	const be_frame_attr_t *b_attr = (const be_frame_attr_t*)get_irn_generic_attr_const(b);
Michael Beck's avatar
Michael Beck committed
129

130
131
132
	if (a_attr->ent != b_attr->ent || a_attr->offset != b_attr->offset)
		return 1;

133
	return be_nodes_equal(a, b);
134
135
}

Michael Beck's avatar
Michael Beck committed
136
137
138
139
140
/**
 * Compare the attributes of two be_Return nodes.
 *
 * @return zero if both nodes have identically attributes
 */
Michael Beck's avatar
Michael Beck committed
141
static int Return_cmp_attr(const ir_node *a, const ir_node *b)
142
{
143
144
	const be_return_attr_t *a_attr = (const be_return_attr_t*)get_irn_generic_attr_const(a);
	const be_return_attr_t *b_attr = (const be_return_attr_t*)get_irn_generic_attr_const(b);
145
146
147

	if (a_attr->num_ret_vals != b_attr->num_ret_vals)
		return 1;
148
149
	if (a_attr->pop != b_attr->pop)
		return 1;
150
151
	if (a_attr->emit_pop != b_attr->emit_pop)
		return 1;
152

153
	return be_nodes_equal(a, b);
154
155
}

Michael Beck's avatar
Michael Beck committed
156
157
158
159
160
/**
 * Compare the attributes of two be_IncSP nodes.
 *
 * @return zero if both nodes have identically attributes
 */
Michael Beck's avatar
Michael Beck committed
161
static int IncSP_cmp_attr(const ir_node *a, const ir_node *b)
162
{
163
164
	const be_incsp_attr_t *a_attr = (const be_incsp_attr_t*)get_irn_generic_attr_const(a);
	const be_incsp_attr_t *b_attr = (const be_incsp_attr_t*)get_irn_generic_attr_const(b);
165
166
167
168

	if (a_attr->offset != b_attr->offset)
		return 1;

169
	return be_nodes_equal(a, b);
170
171
}

Michael Beck's avatar
Michael Beck committed
172
173
174
175
176
/**
 * Compare the attributes of two be_Call nodes.
 *
 * @return zero if both nodes have identically attributes
 */
Michael Beck's avatar
Michael Beck committed
177
static int Call_cmp_attr(const ir_node *a, const ir_node *b)
178
{
179
180
	const be_call_attr_t *a_attr = (const be_call_attr_t*)get_irn_generic_attr_const(a);
	const be_call_attr_t *b_attr = (const be_call_attr_t*)get_irn_generic_attr_const(b);
181
182

	if (a_attr->ent != b_attr->ent ||
183
		a_attr->call_tp != b_attr->call_tp)
184
185
		return 1;

186
	return be_nodes_equal(a, b);
Michael Beck's avatar
Michael Beck committed
187
188
}

189
static arch_register_req_t *allocate_reg_req(const ir_node *node)
Matthias Braun's avatar
Matthias Braun committed
190
{
191
	ir_graph       *irg  = get_irn_irg(node);
192
	struct obstack *obst = be_get_be_obst(irg);
Matthias Braun's avatar
Matthias Braun committed
193

194
	arch_register_req_t *req = OALLOCZ(obst, arch_register_req_t);
195
196
	return req;
}
Matthias Braun's avatar
Matthias Braun committed
197

198
199
void be_set_constr_in(ir_node *node, int pos, const arch_register_req_t *req)
{
200
201
202
	backend_info_t *info = be_get_info(node);
	assert(pos < get_irn_arity(node));
	info->in_reqs[pos] = req;
203
}
Matthias Braun's avatar
Matthias Braun committed
204

205
206
207
208
void be_set_constr_out(ir_node *node, int pos, const arch_register_req_t *req)
{
	backend_info_t *info = be_get_info(node);
	info->out_infos[pos].req = req;
Matthias Braun's avatar
Matthias Braun committed
209
210
}

211
/**
212
 * Initializes the generic attribute of all be nodes and return it.
213
 */
214
static void init_node_attr(ir_node *node, int n_inputs, int n_outputs)
Sebastian Hack's avatar
Sebastian Hack committed
215
{
216
217
	assert(n_outputs >= 0);

218
	ir_graph       *irg  = get_irn_irg(node);
219
	struct obstack *obst = be_get_be_obst(irg);
220
	backend_info_t *info = be_get_info(node);
221
	const arch_register_req_t **in_reqs;
Sebastian Hack's avatar
Sebastian Hack committed
222

223
224
	if (n_inputs >= 0) {
		int i;
225
226
		assert(n_inputs == get_irn_arity(node));
		in_reqs = OALLOCN(obst, const arch_register_req_t*, n_inputs);
227
		for (i = 0; i < n_inputs; ++i) {
228
			in_reqs[i] = arch_no_register_req;
229
230
		}
	} else {
231
		in_reqs = NEW_ARR_F(const arch_register_req_t*, 0);
232
	}
233
	info->in_reqs = in_reqs;
234

235
236
237
238
	info->out_infos = NEW_ARR_D(reg_out_info_t, obst, n_outputs);
	memset(info->out_infos, 0, n_outputs * sizeof(info->out_infos[0]));
	for (int i = 0; i < n_outputs; ++i) {
		info->out_infos[i].req = arch_no_register_req;
Sebastian Hack's avatar
Sebastian Hack committed
239
240
	}
}
241

242
static void add_register_req_in(ir_node *node, const arch_register_req_t *req)
243
{
244
	backend_info_t *info = be_get_info(node);
245
	ARR_APP1(const arch_register_req_t*, info->in_reqs, req);
246
247
}

248
249
250
ir_node *be_new_Spill(const arch_register_class_t *cls,
		const arch_register_class_t *cls_frame, ir_node *bl,
		ir_node *frame, ir_node *to_spill)
251
{
Matthias Braun's avatar
Matthias Braun committed
252
	be_frame_attr_t *a;
253
	ir_node         *in[2];
254
	ir_node         *res;
255
	ir_graph        *irg = get_Block_irg(bl);
256

257
258
259
	in[0]     = frame;
	in[1]     = to_spill;
	res       = new_ir_node(NULL, irg, bl, op_be_Spill, mode_M, 2, in);
260
261
	init_node_attr(res, 2, 1);
	a         = (be_frame_attr_t*) get_irn_generic_attr(res);
262
	a->ent    = NULL;
Matthias Braun's avatar
Matthias Braun committed
263
	a->offset = 0;
264
	a->base.exc.pin_state = op_pin_state_pinned;
Sebastian Hack's avatar
Sebastian Hack committed
265

266
267
	be_node_set_reg_class_in(res, n_be_Spill_frame, cls_frame);
	be_node_set_reg_class_in(res, n_be_Spill_val, cls);
268
	arch_set_irn_register_req_out(res, 0, arch_no_register_req);
269

Sebastian Hack's avatar
Sebastian Hack committed
270
271
	return res;
}
272

273
ir_node *be_new_Reload(const arch_register_class_t *cls,
274
		const arch_register_class_t *cls_frame, ir_node *block,
275
		ir_node *frame, ir_node *mem, ir_mode *mode)
276
{
277
278
279
	ir_node  *in[2];
	ir_node  *res;
	ir_graph *irg = get_Block_irg(block);
280
	be_frame_attr_t *a;
281
282
283

	in[0] = frame;
	in[1] = mem;
284
	res   = new_ir_node(NULL, irg, block, op_be_Reload, mode, 2, in);
285

286
	init_node_attr(res, 2, 1);
287
	be_node_set_reg_class_out(res, 0, cls);
288

289
	be_node_set_reg_class_in(res, n_be_Reload_frame, cls_frame);
290
	arch_set_irn_flags(res, arch_irn_flags_rematerializable);
291

292
293
294
295
296
	a         = (be_frame_attr_t*) get_irn_generic_attr(res);
	a->ent    = NULL;
	a->offset = 0;
	a->base.exc.pin_state = op_pin_state_pinned;

Sebastian Hack's avatar
Sebastian Hack committed
297
298
	return res;
}
299

300
ir_node *be_get_Reload_mem(const ir_node *irn)
Sebastian Hack's avatar
Sebastian Hack committed
301
302
{
	assert(be_is_Reload(irn));
303
	return get_irn_n(irn, n_be_Reload_mem);
Sebastian Hack's avatar
Sebastian Hack committed
304
305
}

306
307
308
ir_node *be_get_Reload_frame(const ir_node *irn)
{
	assert(be_is_Reload(irn));
309
	return get_irn_n(irn, n_be_Reload_frame);
310
311
}

312
313
314
ir_node *be_get_Spill_val(const ir_node *irn)
{
	assert(be_is_Spill(irn));
315
	return get_irn_n(irn, n_be_Spill_val);
316
}
Matthias Braun's avatar
Matthias Braun committed
317

318
319
320
ir_node *be_get_Spill_frame(const ir_node *irn)
{
	assert(be_is_Spill(irn));
321
	return get_irn_n(irn, n_be_Spill_frame);
322
}
323

324
325
ir_node *be_new_Perm(const arch_register_class_t *cls, ir_node *block,
                     int n, ir_node *in[])
Sebastian Hack's avatar
Sebastian Hack committed
326
{
327
328
329
	int            i;
	ir_graph       *irg = get_Block_irg(block);
	be_node_attr_t *attr;
330

331
	ir_node *irn = new_ir_node(NULL, irg, block, op_be_Perm, mode_T, n, in);
332
	init_node_attr(irn, n, n);
333
334
	attr                = (be_node_attr_t*) get_irn_generic_attr(irn);
	attr->exc.pin_state = op_pin_state_pinned;
335
	for (i = 0; i < n; ++i) {
336
337
338
339
340
341
342
343
344
345
346
347
348
		const ir_node             *input = in[i];
		const arch_register_req_t *req   = arch_get_irn_register_req(input);
		if (req->width == 1) {
			be_set_constr_in(irn, i, cls->class_req);
			be_set_constr_out(irn, i, cls->class_req);
		} else {
			arch_register_req_t *new_req = allocate_reg_req(irn);
			new_req->cls   = cls;
			new_req->type  = (req->type & arch_register_req_type_aligned);
			new_req->width = req->width;
			be_set_constr_in(irn, i, new_req);
			be_set_constr_out(irn, i, new_req);
		}
Sebastian Hack's avatar
Sebastian Hack committed
349
350
	}

Sebastian Hack's avatar
Sebastian Hack committed
351
352
	return irn;
}
353

354
355
void be_Perm_reduce(ir_node *perm, int new_size, int *map)
{
356
357
358
359
360
	int             arity      = get_irn_arity(perm);
	const arch_register_req_t **old_in_reqs
		= ALLOCAN(const arch_register_req_t*, arity);
	reg_out_info_t  *old_infos = ALLOCAN(reg_out_info_t, arity);
	backend_info_t  *info      = be_get_info(perm);
361
	ir_node        **new_in;
362
	int              i;
363
364

	assert(be_is_Perm(perm));
365
	assert(new_size <= arity);
366

367
	new_in = ALLOCAN(ir_node*, new_size);
368

369
	/* save the old register data */
370
	memcpy(old_in_reqs, info->in_reqs, arity * sizeof(old_in_reqs[0]));
371
	memcpy(old_infos, info->out_infos, arity * sizeof(old_infos[0]));
372

Matthias Braun's avatar
Matthias Braun committed
373
	/* compose the new in array and set the new register data directly */
374
	for (i = 0; i < new_size; ++i) {
375
		int idx = map[i];
376
		new_in[i]          = get_irn_n(perm, idx);
377
		info->in_reqs[i]   = old_in_reqs[idx];
378
		info->out_infos[i] = old_infos[idx];
379
380
381
382
383
	}

	set_irn_in(perm, new_size, new_in);
}

384
ir_node *be_new_MemPerm(ir_node *block, int n, ir_node *in[])
Matthias Braun's avatar
Matthias Braun committed
385
{
386
387
	ir_graph                     *irg       = get_Block_irg(block);
	const arch_env_t             *arch_env  = be_get_irg_arch_env(irg);
388
389
390
391
392
	ir_node                      *frame     = get_irg_frame(irg);
	const arch_register_t        *sp        = arch_env->sp;
	ir_node                      *irn;
	be_memperm_attr_t            *attr;
	ir_node                     **real_in;
Matthias Braun's avatar
Matthias Braun committed
393

394
	real_in = ALLOCAN(ir_node*, n + 1);
395
396
397
	real_in[0] = frame;
	memcpy(&real_in[1], in, n * sizeof(real_in[0]));

398
	irn = new_ir_node(NULL, irg, block, op_be_MemPerm, mode_T, n+1, real_in);
399

400
	init_node_attr(irn, n + 1, n);
401
	be_node_set_reg_class_in(irn, 0, sp->reg_class);
Matthias Braun's avatar
Matthias Braun committed
402

403
	attr               = (be_memperm_attr_t*)get_irn_generic_attr(irn);
404
405
	attr->in_entities  = OALLOCNZ(irg->obst, ir_entity*, n);
	attr->out_entities = OALLOCNZ(irg->obst, ir_entity*, n);
Matthias Braun's avatar
Matthias Braun committed
406
407
408
409

	return irn;
}

410
ir_node *be_new_Copy(ir_node *bl, ir_node *op)
Sebastian Hack's avatar
Sebastian Hack committed
411
412
413
{
	ir_node *in[1];
	ir_node *res;
Matthias Braun's avatar
Matthias Braun committed
414
	arch_register_req_t *req;
415
	be_node_attr_t *attr;
416
	ir_graph *irg = get_Block_irg(bl);
417
418
	const arch_register_req_t   *in_req = arch_get_irn_register_req(op);
	const arch_register_class_t *cls    = in_req->cls;
419

Sebastian Hack's avatar
Sebastian Hack committed
420
	in[0] = op;
421
	res   = new_ir_node(NULL, irg, bl, op_be_Copy, get_irn_mode(op), 1, in);
422
	init_node_attr(res, 1, 1);
423
424
	attr = (be_node_attr_t*) get_irn_generic_attr(res);
	attr->exc.pin_state = op_pin_state_floats;
425
426
	be_node_set_reg_class_in(res, 0, cls);
	be_node_set_reg_class_out(res, 0, cls);
Matthias Braun's avatar
Matthias Braun committed
427

428
429
	req = allocate_reg_req(res);
	req->cls        = cls;
430
431
	req->type       = arch_register_req_type_should_be_same
		| (in_req->type & arch_register_req_type_aligned);
432
	req->other_same = 1U << 0;
433
	req->width      = in_req->width;
434
	be_set_constr_out(res, 0, req);
Matthias Braun's avatar
Matthias Braun committed
435

Sebastian Hack's avatar
Sebastian Hack committed
436
	return res;
437
438
}

439
440
ir_node *be_get_Copy_op(const ir_node *cpy)
{
441
	return get_irn_n(cpy, n_be_Copy_op);
442
443
}

444
ir_node *be_new_Keep(ir_node *block, int n, ir_node *in[])
Sebastian Hack's avatar
Sebastian Hack committed
445
{
Sebastian Hack's avatar
Sebastian Hack committed
446
	int i;
447
	ir_node *res;
448
	ir_graph *irg = get_Block_irg(block);
449
	be_node_attr_t *attr;
450

451
452
	res = new_ir_node(NULL, irg, block, op_be_Keep, mode_ANY, -1, NULL);
	init_node_attr(res, -1, 1);
453
454
	attr = (be_node_attr_t*) get_irn_generic_attr(res);
	attr->exc.pin_state = op_pin_state_pinned;
Sebastian Hack's avatar
Sebastian Hack committed
455

456
	for (i = 0; i < n; ++i) {
457
458
459
460
461
		ir_node *pred = in[i];
		add_irn_n(res, pred);
		const arch_register_req_t *req = arch_get_irn_register_req(pred);
		req = req->cls != NULL ? req->cls->class_req : arch_no_register_req;
		add_register_req_in(res, req);
Sebastian Hack's avatar
Sebastian Hack committed
462
	}
463
464
465
466
467
468
469
470
	keep_alive(res);

	return res;
}

void be_Keep_add_node(ir_node *keep, const arch_register_class_t *cls, ir_node *node)
{
	assert(be_is_Keep(keep));
471
472
	add_irn_n(keep, node);
	add_register_req_in(keep, cls->class_req);
Sebastian Hack's avatar
Sebastian Hack committed
473
474
}

475
ir_node *be_new_Call(dbg_info *dbg, ir_graph *irg, ir_node *bl, ir_node *mem,
476
477
478
		const arch_register_req_t *sp_req, ir_node *sp,
		const arch_register_req_t *ptr_req, ir_node *ptr,
		int n_outs, int n, ir_node *in[], ir_type *call_tp)
Sebastian Hack's avatar
Sebastian Hack committed
479
{
480
	be_call_attr_t *a;
481
	int real_n = n_be_Call_first_arg + n;
Sebastian Hack's avatar
Sebastian Hack committed
482
483
	ir_node *irn;
	ir_node **real_in;
Sebastian Hack's avatar
Sebastian Hack committed
484

485
	NEW_ARR_A(ir_node *, real_in, real_n);
486
487
488
489
	real_in[n_be_Call_mem] = mem;
	real_in[n_be_Call_sp]  = sp;
	real_in[n_be_Call_ptr] = ptr;
	memcpy(&real_in[n_be_Call_first_arg], in, n * sizeof(in[0]));
Sebastian Hack's avatar
Sebastian Hack committed
490

491
	irn = new_ir_node(dbg, irg, bl, op_be_Call, mode_T, real_n, real_in);
492
	init_node_attr(irn, real_n, n_outs);
493
494
495
496
497
	a                     = (be_call_attr_t*)get_irn_generic_attr(irn);
	a->ent                = NULL;
	a->call_tp            = call_tp;
	a->pop                = 0;
	a->base.exc.pin_state = op_pin_state_pinned;
498
499
	be_set_constr_in(irn, n_be_Call_sp, sp_req);
	be_set_constr_in(irn, n_be_Call_ptr, ptr_req);
Sebastian Hack's avatar
Sebastian Hack committed
500
	return irn;
Sebastian Hack's avatar
Sebastian Hack committed
501
502
}

503
504
ir_entity *be_Call_get_entity(const ir_node *call)
{
505
	const be_call_attr_t *a = (const be_call_attr_t*)get_irn_generic_attr_const(call);
506
507
508
509
	assert(be_is_Call(call));
	return a->ent;
}

510
511
void be_Call_set_entity(ir_node *call, ir_entity *ent)
{
512
	be_call_attr_t *a = (be_call_attr_t*)get_irn_generic_attr(call);
513
514
515
516
	assert(be_is_Call(call));
	a->ent = ent;
}

517
518
ir_type *be_Call_get_type(ir_node *call)
{
519
	const be_call_attr_t *a = (const be_call_attr_t*)get_irn_generic_attr_const(call);
520
521
522
523
	assert(be_is_Call(call));
	return a->call_tp;
}

524
525
void be_Call_set_type(ir_node *call, ir_type *call_tp)
{
526
	be_call_attr_t *a = (be_call_attr_t*)get_irn_generic_attr(call);
527
528
529
530
	assert(be_is_Call(call));
	a->call_tp = call_tp;
}

531
532
void be_Call_set_pop(ir_node *call, unsigned pop)
{
533
	be_call_attr_t *a = (be_call_attr_t*)get_irn_generic_attr(call);
Matthias Braun's avatar
Matthias Braun committed
534
535
536
	a->pop = pop;
}

537
538
unsigned be_Call_get_pop(const ir_node *call)
{
539
	const be_call_attr_t *a = (const be_call_attr_t*)get_irn_generic_attr_const(call);
Matthias Braun's avatar
Matthias Braun committed
540
541
542
	return a->pop;
}

543
ir_node *be_new_Return(dbg_info *dbg, ir_graph *irg, ir_node *block, int n_res,
544
                       unsigned pop, int n, ir_node *in[])
Sebastian Hack's avatar
Sebastian Hack committed
545
{
546
	be_return_attr_t *a;
547
548
	ir_node *res;

549
550
	res = new_ir_node(dbg, irg, block, op_be_Return, mode_X, n, in);
	init_node_attr(res, n, 1);
551
	be_set_constr_out(res, 0, arch_no_register_req);
552

553
	a = (be_return_attr_t*)get_irn_generic_attr(res);
554
555
556
557
	a->num_ret_vals       = n_res;
	a->pop                = pop;
	a->emit_pop           = 0;
	a->base.exc.pin_state = op_pin_state_pinned;
Sebastian Hack's avatar
Sebastian Hack committed
558

559
	return res;
Sebastian Hack's avatar
Sebastian Hack committed
560
561
}

562
563
int be_Return_get_n_rets(const ir_node *ret)
{
564
	const be_return_attr_t *a = (const be_return_attr_t*)get_irn_generic_attr_const(ret);
565
566
567
	return a->num_ret_vals;
}

568
569
unsigned be_Return_get_pop(const ir_node *ret)
{
570
	const be_return_attr_t *a = (const be_return_attr_t*)get_irn_generic_attr_const(ret);
571
572
573
	return a->pop;
}

574
575
int be_Return_get_emit_pop(const ir_node *ret)
{
576
	const be_return_attr_t *a = (const be_return_attr_t*)get_irn_generic_attr_const(ret);
577
578
579
	return a->emit_pop;
}

580
581
void be_Return_set_emit_pop(ir_node *ret, int emit_pop)
{
582
	be_return_attr_t *a = (be_return_attr_t*)get_irn_generic_attr(ret);
583
584
585
	a->emit_pop = emit_pop;
}

586
ir_node *be_new_IncSP(const arch_register_t *sp, ir_node *bl,
587
                      ir_node *old_sp, int offset, int align)
Sebastian Hack's avatar
Sebastian Hack committed
588
{
Michael Beck's avatar
Michael Beck committed
589
	be_incsp_attr_t *a;
Sebastian Hack's avatar
Sebastian Hack committed
590
	ir_node *irn;
Sebastian Hack's avatar
Sebastian Hack committed
591
	ir_node *in[1];
592
	ir_graph *irg = get_Block_irg(bl);
Sebastian Hack's avatar
Sebastian Hack committed
593
594

	in[0]     = old_sp;
595
	irn       = new_ir_node(NULL, irg, bl, op_be_IncSP, sp->reg_class->mode,
596
	                        ARRAY_SIZE(in), in);
597
	init_node_attr(irn, 1, 1);
598
599
600
601
	a                     = (be_incsp_attr_t*)get_irn_generic_attr(irn);
	a->offset             = offset;
	a->align              = align;
	a->base.exc.pin_state = op_pin_state_pinned;
Sebastian Hack's avatar
Sebastian Hack committed
602
603

	/* Set output constraint to stack register. */
604
605
	be_node_set_reg_class_in(irn, 0, sp->reg_class);
	be_set_constr_single_reg_out(irn, 0, sp, arch_register_req_type_produces_sp);
Sebastian Hack's avatar
Sebastian Hack committed
606
607

	return irn;
Sebastian Hack's avatar
Sebastian Hack committed
608
}
Sebastian Hack's avatar
Sebastian Hack committed
609

610
611
ir_node *be_new_AddSP(const arch_register_t *sp, ir_node *bl, ir_node *old_sp,
		ir_node *sz)
Sebastian Hack's avatar
Sebastian Hack committed
612
{
Sebastian Hack's avatar
Sebastian Hack committed
613
	ir_node *irn;
614
	ir_node *in[n_be_AddSP_last];
615
	ir_graph *irg;
616
	be_node_attr_t *attr;
Sebastian Hack's avatar
Sebastian Hack committed
617

618
619
	in[n_be_AddSP_old_sp] = old_sp;
	in[n_be_AddSP_size]   = sz;
Sebastian Hack's avatar
Sebastian Hack committed
620

621
	irg = get_Block_irg(bl);
622
623
	irn = new_ir_node(NULL, irg, bl, op_be_AddSP, mode_T, n_be_AddSP_last, in);
	init_node_attr(irn, n_be_AddSP_last, pn_be_AddSP_last);
624
625
	attr = (be_node_attr_t*) get_irn_generic_attr(irn);
	attr->exc.pin_state = op_pin_state_pinned;
Sebastian Hack's avatar
Sebastian Hack committed
626

Sebastian Hack's avatar
Sebastian Hack committed
627
	/* Set output constraint to stack register. */
628
	be_set_constr_single_reg_in(irn, n_be_AddSP_old_sp, sp,
629
	                            arch_register_req_type_none);
630
	be_node_set_reg_class_in(irn, n_be_AddSP_size, sp->reg_class);
Matthias Braun's avatar
Matthias Braun committed
631
632
	be_set_constr_single_reg_out(irn, pn_be_AddSP_sp, sp,
	                             arch_register_req_type_produces_sp);
633

Sebastian Hack's avatar
Sebastian Hack committed
634
635
636
	return irn;
}

637
ir_node *be_new_SubSP(const arch_register_t *sp, ir_node *bl, ir_node *old_sp, ir_node *sz)
Michael Beck's avatar
Michael Beck committed
638
639
{
	ir_node *irn;
640
	ir_node *in[n_be_SubSP_last];
641
	ir_graph *irg;
642
	be_node_attr_t *attr;
Michael Beck's avatar
Michael Beck committed
643

644
645
	in[n_be_SubSP_old_sp] = old_sp;
	in[n_be_SubSP_size]   = sz;
Michael Beck's avatar
Michael Beck committed
646

647
	irg = get_Block_irg(bl);
648
649
	irn = new_ir_node(NULL, irg, bl, op_be_SubSP, mode_T, n_be_SubSP_last, in);
	init_node_attr(irn, n_be_SubSP_last, pn_be_SubSP_last);
650
651
	attr = (be_node_attr_t*) get_irn_generic_attr(irn);
	attr->exc.pin_state = op_pin_state_pinned;
Michael Beck's avatar
Michael Beck committed
652
653

	/* Set output constraint to stack register. */
654
	be_set_constr_single_reg_in(irn, n_be_SubSP_old_sp, sp,
655
	                            arch_register_req_type_none);
656
	be_node_set_reg_class_in(irn, n_be_SubSP_size, sp->reg_class);
657
	be_set_constr_single_reg_out(irn, pn_be_SubSP_sp, sp, arch_register_req_type_produces_sp);
Michael Beck's avatar
Michael Beck committed
658
659
660
661

	return irn;
}

662
ir_node *be_new_Start(dbg_info *dbgi, ir_node *bl, int n_outs)
Sebastian Hack's avatar
Sebastian Hack committed
663
{
664
	ir_node *res;
665
	ir_graph *irg = get_Block_irg(bl);
666
	be_node_attr_t *attr;
Sebastian Hack's avatar
Sebastian Hack committed
667

668
	res = new_ir_node(dbgi, irg, bl, op_be_Start, mode_T, 0, NULL);
669
	init_node_attr(res, 0, n_outs);
670
671
	attr = (be_node_attr_t*) get_irn_generic_attr(res);
	attr->exc.pin_state = op_pin_state_pinned;
672
673
674
675

	return res;
}

676
ir_node *be_new_FrameAddr(const arch_register_class_t *cls_frame, ir_node *bl, ir_node *frame, ir_entity *ent)
Sebastian Hack's avatar
Sebastian Hack committed
677
{
678
	be_frame_attr_t *a;
Sebastian Hack's avatar
Sebastian Hack committed
679
680
	ir_node *irn;
	ir_node *in[1];
681
	ir_graph *irg = get_Block_irg(bl);
Sebastian Hack's avatar
Sebastian Hack committed
682

683
	in[0]  = frame;
684
	irn    = new_ir_node(NULL, irg, bl, op_be_FrameAddr, get_irn_mode(frame), 1, in);
685
	init_node_attr(irn, 1, 1);
686
687
688
689
	a                     = (be_frame_attr_t*)get_irn_generic_attr(irn);
	a->ent                = ent;
	a->offset             = 0;
	a->base.exc.pin_state = op_pin_state_floats;
690
691
	be_node_set_reg_class_in(irn, 0, cls_frame);
	be_node_set_reg_class_out(irn, 0, cls_frame);
Michael Beck's avatar
Michael Beck committed
692
693

	return optimize_node(irn);
Sebastian Hack's avatar
Sebastian Hack committed
694
695
}

696
697
ir_node *be_get_FrameAddr_frame(const ir_node *node)
{
Michael Beck's avatar
Michael Beck committed
698
	assert(be_is_FrameAddr(node));
699
	return get_irn_n(node, n_be_FrameAddr_ptr);
Michael Beck's avatar
Michael Beck committed
700
701
}

Matthias Braun's avatar
Matthias Braun committed
702
703
ir_entity *be_get_FrameAddr_entity(const ir_node *node)
{
704
	const be_frame_attr_t *attr = (const be_frame_attr_t*)get_irn_generic_attr_const(node);
Matthias Braun's avatar
Matthias Braun committed
705
706
707
	return attr->ent;
}

708
ir_node *be_new_CopyKeep(ir_node *bl, ir_node *src, int n, ir_node *in_keep[])
Sebastian Hack's avatar
Sebastian Hack committed
709
{
710
711
	ir_node  *irn;
	ir_node **in = ALLOCAN(ir_node*, n + 1);
712
	ir_graph *irg = get_Block_irg(bl);
713
714
715
	const arch_register_req_t   *req  = arch_get_irn_register_req(src);
	const arch_register_class_t *cls  = req->cls;
	ir_mode                     *mode = get_irn_mode(src);
716
	be_node_attr_t *attr;
Sebastian Hack's avatar
Sebastian Hack committed
717
718
719
720

	in[0] = src;
	memcpy(&in[1], in_keep, n * sizeof(in[0]));
	irn   = new_ir_node(NULL, irg, bl, op_be_CopyKeep, mode, n + 1, in);
721
	init_node_attr(irn, n + 1, 1);
722
723
	attr = (be_node_attr_t*) get_irn_generic_attr(irn);
	attr->exc.pin_state = op_pin_state_floats;
724
725
	be_node_set_reg_class_in(irn, 0, cls);
	be_node_set_reg_class_out(irn, 0, cls);
726
727
728
729
730
731
	for (int i = 0; i < n; ++i) {
		ir_node *pred = in_keep[i];
		const arch_register_req_t *req = arch_get_irn_register_req(pred);
		req = req->cls != NULL ? req->cls->class_req : arch_no_register_req;
		be_set_constr_in(irn, i+1, req);
	}
Sebastian Hack's avatar
Sebastian Hack committed
732
733
734
735

	return irn;
}

736
ir_node *be_new_CopyKeep_single(ir_node *bl, ir_node *src, ir_node *keep)
Sebastian Hack's avatar
Sebastian Hack committed
737
{
738
	return be_new_CopyKeep(bl, src, 1, &keep);
Sebastian Hack's avatar
Sebastian Hack committed
739
740
}

741
742
ir_node *be_get_CopyKeep_op(const ir_node *cpy)
{
743
	return get_irn_n(cpy, n_be_CopyKeep_op);
744
745
}

746
747
void be_set_CopyKeep_op(ir_node *cpy, ir_node *op)
{
748
	set_irn_n(cpy, n_be_CopyKeep_op, op);
749
750
}

751
static bool be_has_frame_entity(const ir_node *irn)
752
{
753
	switch (get_irn_opcode(irn)) {
754
	case beo_Spill:
755
	case beo_Reload:
756
	case beo_FrameAddr:
757
		return true;
758
	default:
759
		return false;
760
761
762
	}
}

763
ir_entity *be_get_frame_entity(const ir_node *irn)
764
{
765
	if (be_has_frame_entity(irn)) {
766
		const be_frame_attr_t *a = (const be_frame_attr_t*)get_irn_generic_attr_const(irn);
767
768
769
770
		return a->ent;
	}
	return NULL;
}
Sebastian Hack's avatar
Sebastian Hack committed
771

772
773
774
775
int be_get_frame_offset(const ir_node *irn)
{
	assert(is_be_node(irn));
	if (be_has_frame_entity(irn)) {
776
		const be_frame_attr_t *a = (const be_frame_attr_t*)get_irn_generic_attr_const(irn);
777
778
779
780
781
		return a->offset;
	}
	return 0;
}

782
void be_set_MemPerm_in_entity(const ir_node *irn, int n, ir_entity *ent)