benode.c 37.5 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(ir_graph *const irg)
Matthias Braun's avatar
Matthias Braun committed
190
{
191
	struct obstack *obst = be_get_be_obst(irg);
Matthias Braun's avatar
Matthias Braun committed
192

193
	arch_register_req_t *req = OALLOCZ(obst, arch_register_req_t);
194
195
	return req;
}
Matthias Braun's avatar
Matthias Braun committed
196

197
198
void be_set_constr_in(ir_node *node, int pos, const arch_register_req_t *req)
{
199
200
201
	backend_info_t *info = be_get_info(node);
	assert(pos < get_irn_arity(node));
	info->in_reqs[pos] = req;
202
}
Matthias Braun's avatar
Matthias Braun committed
203

204
205
206
207
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
208
209
}

210
/**
211
 * Initializes the generic attribute of all be nodes and return it.
212
 */
213
static void init_node_attr(ir_node *node, int n_inputs, int n_outputs)
Sebastian Hack's avatar
Sebastian Hack committed
214
{
215
216
	assert(n_outputs >= 0);

217
	ir_graph       *irg  = get_irn_irg(node);
218
	struct obstack *obst = be_get_be_obst(irg);
219
	backend_info_t *info = be_get_info(node);
220
	const arch_register_req_t **in_reqs;
Sebastian Hack's avatar
Sebastian Hack committed
221

222
223
	if (n_inputs >= 0) {
		int i;
224
225
		assert(n_inputs == get_irn_arity(node));
		in_reqs = OALLOCN(obst, const arch_register_req_t*, n_inputs);
226
		for (i = 0; i < n_inputs; ++i) {
227
			in_reqs[i] = arch_no_register_req;
228
229
		}
	} else {
230
		in_reqs = NEW_ARR_F(const arch_register_req_t*, 0);
231
	}
232
	info->in_reqs = in_reqs;
233

234
235
236
237
	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
238
239
	}
}
240

241
static void add_register_req_in(ir_node *node, const arch_register_req_t *req)
242
{
243
	backend_info_t *info = be_get_info(node);
244
	ARR_APP1(const arch_register_req_t*, info->in_reqs, req);
245
246
}

247
248
249
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)
250
{
Matthias Braun's avatar
Matthias Braun committed
251
	be_frame_attr_t *a;
252
	ir_node         *in[2];
253
	ir_node         *res;
254
	ir_graph        *irg = get_Block_irg(bl);
255

256
257
258
	in[0]     = frame;
	in[1]     = to_spill;
	res       = new_ir_node(NULL, irg, bl, op_be_Spill, mode_M, 2, in);
259
260
	init_node_attr(res, 2, 1);
	a         = (be_frame_attr_t*) get_irn_generic_attr(res);
261
	a->ent    = NULL;
Matthias Braun's avatar
Matthias Braun committed
262
	a->offset = 0;
263
	a->base.exc.pin_state = op_pin_state_pinned;
Sebastian Hack's avatar
Sebastian Hack committed
264

265
266
	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);
267
	arch_set_irn_register_req_out(res, 0, arch_no_register_req);
268

Sebastian Hack's avatar
Sebastian Hack committed
269
270
	return res;
}
271

272
ir_node *be_new_Reload(const arch_register_class_t *cls,
273
		const arch_register_class_t *cls_frame, ir_node *block,
274
		ir_node *frame, ir_node *mem, ir_mode *mode)
275
{
276
277
278
	ir_node  *in[2];
	ir_node  *res;
	ir_graph *irg = get_Block_irg(block);
279
	be_frame_attr_t *a;
280
281
282

	in[0] = frame;
	in[1] = mem;
283
	res   = new_ir_node(NULL, irg, block, op_be_Reload, mode, 2, in);
284

285
	init_node_attr(res, 2, 1);
286
	be_node_set_reg_class_out(res, 0, cls);
287

288
	be_node_set_reg_class_in(res, n_be_Reload_frame, cls_frame);
289
	arch_set_irn_flags(res, arch_irn_flags_rematerializable);
290

291
292
293
294
295
	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
296
297
	return res;
}
298

299
ir_node *be_get_Reload_mem(const ir_node *irn)
Sebastian Hack's avatar
Sebastian Hack committed
300
301
{
	assert(be_is_Reload(irn));
302
	return get_irn_n(irn, n_be_Reload_mem);
Sebastian Hack's avatar
Sebastian Hack committed
303
304
}

305
306
307
ir_node *be_get_Reload_frame(const ir_node *irn)
{
	assert(be_is_Reload(irn));
308
	return get_irn_n(irn, n_be_Reload_frame);
309
310
}

311
312
313
ir_node *be_get_Spill_val(const ir_node *irn)
{
	assert(be_is_Spill(irn));
314
	return get_irn_n(irn, n_be_Spill_val);
315
}
Matthias Braun's avatar
Matthias Braun committed
316

317
318
319
ir_node *be_get_Spill_frame(const ir_node *irn)
{
	assert(be_is_Spill(irn));
320
	return get_irn_n(irn, n_be_Spill_frame);
321
}
322

323
324
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
325
{
326
327
328
	int            i;
	ir_graph       *irg = get_Block_irg(block);
	be_node_attr_t *attr;
329

330
	ir_node *irn = new_ir_node(NULL, irg, block, op_be_Perm, mode_T, n, in);
331
	init_node_attr(irn, n, n);
332
333
	attr                = (be_node_attr_t*) get_irn_generic_attr(irn);
	attr->exc.pin_state = op_pin_state_pinned;
334
	for (i = 0; i < n; ++i) {
335
336
337
338
339
340
		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 {
341
			arch_register_req_t *const new_req = allocate_reg_req(irg);
342
343
344
345
346
347
			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
348
349
	}

Sebastian Hack's avatar
Sebastian Hack committed
350
351
	return irn;
}
352

353
354
void be_Perm_reduce(ir_node *perm, int new_size, int *map)
{
355
356
357
358
359
	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);
360
	ir_node        **new_in;
361
	int              i;
362
363

	assert(be_is_Perm(perm));
364
	assert(new_size <= arity);
365

366
	new_in = ALLOCAN(ir_node*, new_size);
367

368
	/* save the old register data */
369
	memcpy(old_in_reqs, info->in_reqs, arity * sizeof(old_in_reqs[0]));
370
	memcpy(old_infos, info->out_infos, arity * sizeof(old_infos[0]));
371

Matthias Braun's avatar
Matthias Braun committed
372
	/* compose the new in array and set the new register data directly */
373
	for (i = 0; i < new_size; ++i) {
374
		int idx = map[i];
375
		new_in[i]          = get_irn_n(perm, idx);
376
		info->in_reqs[i]   = old_in_reqs[idx];
377
		info->out_infos[i] = old_infos[idx];
378
379
380
381
382
	}

	set_irn_in(perm, new_size, new_in);
}

383
ir_node *be_new_MemPerm(ir_node *block, int n, ir_node *in[])
Matthias Braun's avatar
Matthias Braun committed
384
{
385
386
	ir_graph                     *irg       = get_Block_irg(block);
	const arch_env_t             *arch_env  = be_get_irg_arch_env(irg);
387
388
389
390
391
	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
392

393
	real_in = ALLOCAN(ir_node*, n + 1);
394
395
396
	real_in[0] = frame;
	memcpy(&real_in[1], in, n * sizeof(real_in[0]));

397
	irn = new_ir_node(NULL, irg, block, op_be_MemPerm, mode_T, n+1, real_in);
398

399
	init_node_attr(irn, n + 1, n);
400
	be_node_set_reg_class_in(irn, 0, sp->reg_class);
Matthias Braun's avatar
Matthias Braun committed
401

402
	attr               = (be_memperm_attr_t*)get_irn_generic_attr(irn);
403
404
	attr->in_entities  = OALLOCNZ(get_irg_obstack(irg), ir_entity*, n);
	attr->out_entities = OALLOCNZ(get_irg_obstack(irg), ir_entity*, n);
Matthias Braun's avatar
Matthias Braun committed
405
406
407
408

	return irn;
}

409
ir_node *be_new_Copy(ir_node *bl, ir_node *op)
Sebastian Hack's avatar
Sebastian Hack committed
410
411
412
{
	ir_node *in[1];
	ir_node *res;
413
	be_node_attr_t *attr;
414
	ir_graph *irg = get_Block_irg(bl);
415
416
	const arch_register_req_t   *in_req = arch_get_irn_register_req(op);
	const arch_register_class_t *cls    = in_req->cls;
417

Sebastian Hack's avatar
Sebastian Hack committed
418
	in[0] = op;
419
	res   = new_ir_node(NULL, irg, bl, op_be_Copy, get_irn_mode(op), 1, in);
420
	init_node_attr(res, 1, 1);
421
422
	attr = (be_node_attr_t*) get_irn_generic_attr(res);
	attr->exc.pin_state = op_pin_state_floats;
423
424
	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
425

426
	arch_register_req_t *const req = allocate_reg_req(irg);
427
	req->cls        = cls;
428
429
	req->type       = arch_register_req_type_should_be_same
		| (in_req->type & arch_register_req_type_aligned);
430
	req->other_same = 1U << 0;
431
	req->width      = in_req->width;
432
	be_set_constr_out(res, 0, req);
Matthias Braun's avatar
Matthias Braun committed
433

Sebastian Hack's avatar
Sebastian Hack committed
434
	return res;
435
436
}

437
438
ir_node *be_get_Copy_op(const ir_node *cpy)
{
439
	return get_irn_n(cpy, n_be_Copy_op);
440
441
}

442
ir_node *be_new_Keep(ir_node *block, int n, ir_node *in[])
Sebastian Hack's avatar
Sebastian Hack committed
443
{
Sebastian Hack's avatar
Sebastian Hack committed
444
	int i;
445
	ir_node *res;
446
	ir_graph *irg = get_Block_irg(block);
447
	be_node_attr_t *attr;
448

449
450
	res = new_ir_node(NULL, irg, block, op_be_Keep, mode_ANY, -1, NULL);
	init_node_attr(res, -1, 1);
451
452
	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
453

454
	for (i = 0; i < n; ++i) {
455
456
457
458
459
		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
460
	}
461
462
463
464
465
466
467
468
	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));
469
470
	add_irn_n(keep, node);
	add_register_req_in(keep, cls->class_req);
Sebastian Hack's avatar
Sebastian Hack committed
471
472
}

473
ir_node *be_new_Call(dbg_info *dbg, ir_graph *irg, ir_node *bl, ir_node *mem,
474
475
476
		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
477
{
478
	be_call_attr_t *a;
479
	int real_n = n_be_Call_first_arg + n;
Sebastian Hack's avatar
Sebastian Hack committed
480
481
	ir_node *irn;
	ir_node **real_in;
Sebastian Hack's avatar
Sebastian Hack committed
482

483
	NEW_ARR_A(ir_node *, real_in, real_n);
484
485
486
487
	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
488

489
	irn = new_ir_node(dbg, irg, bl, op_be_Call, mode_T, real_n, real_in);
490
	init_node_attr(irn, real_n, n_outs);
491
492
493
494
495
	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;
496
497
	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
498
	return irn;
Sebastian Hack's avatar
Sebastian Hack committed
499
500
}

501
502
ir_entity *be_Call_get_entity(const ir_node *call)
{
503
	const be_call_attr_t *a = (const be_call_attr_t*)get_irn_generic_attr_const(call);
504
505
506
507
	assert(be_is_Call(call));
	return a->ent;
}

508
509
void be_Call_set_entity(ir_node *call, ir_entity *ent)
{
510
	be_call_attr_t *a = (be_call_attr_t*)get_irn_generic_attr(call);
511
512
513
514
	assert(be_is_Call(call));
	a->ent = ent;
}

515
516
ir_type *be_Call_get_type(ir_node *call)
{
517
	const be_call_attr_t *a = (const be_call_attr_t*)get_irn_generic_attr_const(call);
518
519
520
521
	assert(be_is_Call(call));
	return a->call_tp;
}

522
523
void be_Call_set_type(ir_node *call, ir_type *call_tp)
{
524
	be_call_attr_t *a = (be_call_attr_t*)get_irn_generic_attr(call);
525
526
527
528
	assert(be_is_Call(call));
	a->call_tp = call_tp;
}

529
530
void be_Call_set_pop(ir_node *call, unsigned pop)
{
531
	be_call_attr_t *a = (be_call_attr_t*)get_irn_generic_attr(call);
Matthias Braun's avatar
Matthias Braun committed
532
533
534
	a->pop = pop;
}

535
536
unsigned be_Call_get_pop(const ir_node *call)
{
537
	const be_call_attr_t *a = (const be_call_attr_t*)get_irn_generic_attr_const(call);
Matthias Braun's avatar
Matthias Braun committed
538
539
540
	return a->pop;
}

541
ir_node *be_new_Return(dbg_info *dbg, ir_graph *irg, ir_node *block, int n_res,
542
                       unsigned pop, int n, ir_node *in[])
Sebastian Hack's avatar
Sebastian Hack committed
543
{
544
	be_return_attr_t *a;
545
546
	ir_node *res;

547
548
	res = new_ir_node(dbg, irg, block, op_be_Return, mode_X, n, in);
	init_node_attr(res, n, 1);
549
	be_set_constr_out(res, 0, arch_no_register_req);
550

551
	a = (be_return_attr_t*)get_irn_generic_attr(res);
552
553
554
555
	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
556

557
	return res;
Sebastian Hack's avatar
Sebastian Hack committed
558
559
}

560
561
int be_Return_get_n_rets(const ir_node *ret)
{
562
	const be_return_attr_t *a = (const be_return_attr_t*)get_irn_generic_attr_const(ret);
563
564
565
	return a->num_ret_vals;
}

566
567
unsigned be_Return_get_pop(const ir_node *ret)
{
568
	const be_return_attr_t *a = (const be_return_attr_t*)get_irn_generic_attr_const(ret);
569
570
571
	return a->pop;
}

572
573
int be_Return_get_emit_pop(const ir_node *ret)
{
574
	const be_return_attr_t *a = (const be_return_attr_t*)get_irn_generic_attr_const(ret);
575
576
577
	return a->emit_pop;
}

578
579
void be_Return_set_emit_pop(ir_node *ret, int emit_pop)
{
580
	be_return_attr_t *a = (be_return_attr_t*)get_irn_generic_attr(ret);
581
582
583
	a->emit_pop = emit_pop;
}

584
ir_node *be_new_IncSP(const arch_register_t *sp, ir_node *bl,
585
                      ir_node *old_sp, int offset, int align)
Sebastian Hack's avatar
Sebastian Hack committed
586
{
Michael Beck's avatar
Michael Beck committed
587
	be_incsp_attr_t *a;
Sebastian Hack's avatar
Sebastian Hack committed
588
	ir_node *irn;
Sebastian Hack's avatar
Sebastian Hack committed
589
	ir_node *in[1];
590
	ir_graph *irg = get_Block_irg(bl);
Sebastian Hack's avatar
Sebastian Hack committed
591
592

	in[0]     = old_sp;
593
	irn       = new_ir_node(NULL, irg, bl, op_be_IncSP, sp->reg_class->mode,
594
	                        ARRAY_SIZE(in), in);
595
	init_node_attr(irn, 1, 1);
596
597
598
599
	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
600
601

	/* Set output constraint to stack register. */
602
603
	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
604
605

	return irn;
Sebastian Hack's avatar
Sebastian Hack committed
606
}
Sebastian Hack's avatar
Sebastian Hack committed
607

608
609
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
610
{
Sebastian Hack's avatar
Sebastian Hack committed
611
	ir_node *irn;
612
	ir_node *in[n_be_AddSP_last];
613
	ir_graph *irg;
614
	be_node_attr_t *attr;
Sebastian Hack's avatar
Sebastian Hack committed
615

616
617
	in[n_be_AddSP_old_sp] = old_sp;
	in[n_be_AddSP_size]   = sz;
Sebastian Hack's avatar
Sebastian Hack committed
618

619
	irg = get_Block_irg(bl);
620
621
	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);
622
623
	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
624

Sebastian Hack's avatar
Sebastian Hack committed
625
	/* Set output constraint to stack register. */
626
	be_set_constr_single_reg_in(irn, n_be_AddSP_old_sp, sp,
627
	                            arch_register_req_type_none);
628
	be_node_set_reg_class_in(irn, n_be_AddSP_size, sp->reg_class);
Matthias Braun's avatar
Matthias Braun committed
629
630
	be_set_constr_single_reg_out(irn, pn_be_AddSP_sp, sp,
	                             arch_register_req_type_produces_sp);
631

Sebastian Hack's avatar
Sebastian Hack committed
632
633
634
	return irn;
}

635
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
636
637
{
	ir_node *irn;
638
	ir_node *in[n_be_SubSP_last];
639
	ir_graph *irg;
640
	be_node_attr_t *attr;
Michael Beck's avatar
Michael Beck committed
641

642
643
	in[n_be_SubSP_old_sp] = old_sp;
	in[n_be_SubSP_size]   = sz;
Michael Beck's avatar
Michael Beck committed
644

645
	irg = get_Block_irg(bl);
646
647
	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);
648
649
	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
650
651

	/* Set output constraint to stack register. */
652
	be_set_constr_single_reg_in(irn, n_be_SubSP_old_sp, sp,
653
	                            arch_register_req_type_none);
654
	be_node_set_reg_class_in(irn, n_be_SubSP_size, sp->reg_class);
655
	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
656
657
658
659

	return irn;
}

660
ir_node *be_new_Start(dbg_info *dbgi, ir_node *bl, int n_outs)
Sebastian Hack's avatar
Sebastian Hack committed
661
{
662
	ir_node *res;
663
	ir_graph *irg = get_Block_irg(bl);
664
	be_node_attr_t *attr;
Sebastian Hack's avatar
Sebastian Hack committed
665

666
	res = new_ir_node(dbgi, irg, bl, op_be_Start, mode_T, 0, NULL);
667
	init_node_attr(res, 0, n_outs);
668
669
	attr = (be_node_attr_t*) get_irn_generic_attr(res);
	attr->exc.pin_state = op_pin_state_pinned;
670
671
672
673

	return res;
}

674
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
675
{
676
	be_frame_attr_t *a;
Sebastian Hack's avatar
Sebastian Hack committed
677
678
	ir_node *irn;
	ir_node *in[1];
679
	ir_graph *irg = get_Block_irg(bl);
Sebastian Hack's avatar
Sebastian Hack committed
680

681
	in[0]  = frame;
682
	irn    = new_ir_node(NULL, irg, bl, op_be_FrameAddr, get_irn_mode(frame), 1, in);
683
	init_node_attr(irn, 1, 1);
684
685
686
687
	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;
688
689
	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
690
691

	return optimize_node(irn);
Sebastian Hack's avatar
Sebastian Hack committed
692
693
}

694
695
ir_node *be_get_FrameAddr_frame(const ir_node *node)
{
Michael Beck's avatar
Michael Beck committed
696
	assert(be_is_FrameAddr(node));
697
	return get_irn_n(node, n_be_FrameAddr_ptr);
Michael Beck's avatar
Michael Beck committed
698
699
}

Matthias Braun's avatar
Matthias Braun committed
700
701
ir_entity *be_get_FrameAddr_entity(const ir_node *node)
{
702
	const be_frame_attr_t *attr = (const be_frame_attr_t*)get_irn_generic_attr_const(node);
Matthias Braun's avatar
Matthias Braun committed
703
704
705
	return attr->ent;
}

706
ir_node *be_new_CopyKeep(ir_node *bl, ir_node *src, int n, ir_node *in_keep[])
Sebastian Hack's avatar
Sebastian Hack committed
707
{
708
709
	ir_node  *irn;
	ir_node **in = ALLOCAN(ir_node*, n + 1);
710
	ir_graph *irg = get_Block_irg(bl);
711
712
713
	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);
714
	be_node_attr_t *attr;
Sebastian Hack's avatar
Sebastian Hack committed
715
716
717
718

	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);
719
	init_node_attr(irn, n + 1, 1);
720
721
	attr = (be_node_attr_t*) get_irn_generic_attr(irn);
	attr->exc.pin_state = op_pin_state_floats;
722
723
	be_node_set_reg_class_in(irn, 0, cls);
	be_node_set_reg_class_out(irn, 0, cls);
724
725
726
727
728
729
	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
730
731
732
733

	return irn;
}

734
ir_node *be_new_CopyKeep_single(ir_node *bl, ir_node *src, ir_node *keep)
Sebastian Hack's avatar
Sebastian Hack committed
735
{
736
	return be_new_CopyKeep(bl, src, 1, &keep);
Sebastian Hack's avatar
Sebastian Hack committed
737
738
}

739
740
ir_node *be_get_CopyKeep_op(const ir_node *cpy)
{
741
	return get_irn_n(cpy, n_be_CopyKeep_op);
742
743
}

744
745
void be_set_CopyKeep_op(ir_node *cpy, ir_node *op)
{
746
	set_irn_n(cpy, n_be_CopyKeep_op, op);
747
748
}

749
static bool be_has_frame_entity(const ir_node *irn)
750
{
751
	switch (get_irn_opcode(irn)) {
752
	case beo_Spill:
753
	case beo_Reload:
754
	case beo_FrameAddr:
755
		return true;
756
	default:
757
		return false;
758
759
760
	}
}

761
ir_entity *be_get_frame_entity(const ir_node *irn)
762
{
763
	if (be_has_frame_entity(irn)) {
764
		const be_frame_attr_t *a = (const be_frame_attr_t*)get_irn_generic_attr_const(irn);
765
766
767
768
		return a->ent;
	}
	return NULL;
}
Sebastian Hack's avatar
Sebastian Hack committed
769

770
771
772
773
int be_get_frame_offset(const ir_node *irn)
{
	assert(is_be_node(irn));
	if (be_has_frame_entity(irn)) {
774
		const be_frame_attr_t *a = (const be_frame_attr_t*)get_irn_generic_attr_const(irn);
775
776
777
778
779
		return a->offset;
	}
	return 0;
}