bearch_TEMPLATE.c 17.8 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    The main TEMPLATE backend driver file.
 * @version  $Id$
 */
25
#include "config.h"
26
27
28
29
30
31
32
33
34
35
36

#include "pseudo_irg.h"
#include "irgwalk.h"
#include "irprog.h"
#include "irprintf.h"
#include "ircons.h"
#include "irgmod.h"

#include "bitset.h"
#include "debug.h"

37
#include "../bearch_t.h"
38
39
40
#include "../benode_t.h"
#include "../belower.h"
#include "../besched_t.h"
41
#include "be.h"
Christian Würdig's avatar
Christian Würdig committed
42
#include "../beabi.h"
43
#include "../bemodule.h"
Matthias Braun's avatar
Matthias Braun committed
44
#include "../begnuas.h"
Christian Würdig's avatar
Christian Würdig committed
45

46
47
#include "bearch_TEMPLATE_t.h"

48
49
#include "TEMPLATE_new_nodes.h"
#include "gen_TEMPLATE_regalloc_if.h"
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
#include "TEMPLATE_transform.h"
#include "TEMPLATE_emitter.h"
#include "TEMPLATE_map_regs.h"

/* TODO: ugly, but we need it to get access to the registers assigned to Phi nodes */
static set *cur_reg_set = NULL;

/**************************************************
 *                         _ _              _  __
 *                        | | |            (_)/ _|
 *  _ __ ___  __ _    __ _| | | ___   ___   _| |_
 * | '__/ _ \/ _` |  / _` | | |/ _ \ / __| | |  _|
 * | | |  __/ (_| | | (_| | | | (_) | (__  | | |
 * |_|  \___|\__, |  \__,_|_|_|\___/ \___| |_|_|
 *            __/ |
 *           |___/
 **************************************************/

/**
 * Return register requirements for a TEMPLATE node.
 * If the node returns a tuple (mode_T) then the proj's
 * will be asked for this information.
 */
73
74
75
static const arch_register_req_t *TEMPLATE_get_irn_reg_req(const ir_node *node,
                                                           int pos)
{
76
	long               node_pos = pos == -1 ? 0 : pos;
Matthias Braun's avatar
Matthias Braun committed
77
	ir_mode           *mode     = get_irn_mode(node);
78
79

	if (mode == mode_T || mode == mode_M) {
Matthias Braun's avatar
Matthias Braun committed
80
		return arch_no_register_req;
81
82
	}

Matthias Braun's avatar
Matthias Braun committed
83
	if (is_Proj(node)) {
84
85
86
		/* in case of a proj, we need to get the correct OUT slot */
		/* of the node corresponding to the proj number */
		if (pos == -1) {
Matthias Braun's avatar
Matthias Braun committed
87
88
			node_pos = TEMPLATE_translate_proj_pos(node);
		} else {
89
90
91
			node_pos = pos;
		}

Matthias Braun's avatar
Matthias Braun committed
92
		node = skip_Proj_const(node);
93
94
95
	}

	/* get requirements for our own nodes */
Matthias Braun's avatar
Matthias Braun committed
96
97
	if (is_TEMPLATE_irn(node)) {
		const arch_register_req_t *req;
98
		if (pos >= 0) {
Matthias Braun's avatar
Matthias Braun committed
99
100
101
			req = get_TEMPLATE_in_req(node, pos);
		} else {
			req = get_TEMPLATE_out_req(node, node_pos);
102
103
		}

Matthias Braun's avatar
Matthias Braun committed
104
		assert(req != NULL);
105

Matthias Braun's avatar
Matthias Braun committed
106
		return req;
107
108
	}

Matthias Braun's avatar
Matthias Braun committed
109
110
111
112
	/* unknowns should be transformed already */
	assert(!is_Unknown(node));

	return arch_no_register_req;
113
114
}

115
static void TEMPLATE_set_irn_reg(ir_node *irn, const arch_register_t *reg)
Matthias Braun's avatar
Matthias Braun committed
116
{
117
118
	int pos = 0;

Christian Würdig's avatar
Christian Würdig committed
119
	if (is_Proj(irn)) {
120
		pos = TEMPLATE_translate_proj_pos(irn);
Matthias Braun's avatar
Matthias Braun committed
121
		irn = skip_Proj(irn);
122
123
124
125
126
127
128
129
130
131
132
133
134
135
	}

	if (is_TEMPLATE_irn(irn)) {
		const arch_register_t **slots;

		slots      = get_TEMPLATE_slots(irn);
		slots[pos] = reg;
	}
	else {
		/* here we set the registers for the Phi nodes */
		TEMPLATE_set_firm_reg(irn, reg, cur_reg_set);
	}
}

136
static const arch_register_t *TEMPLATE_get_irn_reg(const ir_node *irn)
Matthias Braun's avatar
Matthias Braun committed
137
{
138
139
140
	int pos = 0;
	const arch_register_t *reg = NULL;

Christian Würdig's avatar
Christian Würdig committed
141
	if (is_Proj(irn)) {
142
		pos = TEMPLATE_translate_proj_pos(irn);
Matthias Braun's avatar
Matthias Braun committed
143
		irn = skip_Proj_const(irn);
144
145
146
	}

	if (is_TEMPLATE_irn(irn)) {
Matthias Braun's avatar
Matthias Braun committed
147
148
		const arch_register_t * const *slots;
		slots = get_TEMPLATE_slots_const(irn);
149
150
151
152
153
154
155
156
157
		reg   = slots[pos];
	}
	else {
		reg = TEMPLATE_get_firm_reg(irn, cur_reg_set);
	}

	return reg;
}

158
159
static arch_irn_class_t TEMPLATE_classify(const ir_node *irn)
{
Matthias Braun's avatar
Matthias Braun committed
160
	irn = skip_Proj_const(irn);
161
162
163
164
165
166
167
168

	if (is_cfop(irn)) {
		return arch_irn_class_branch;
	}

	return 0;
}

169
170
static arch_irn_flags_t TEMPLATE_get_flags(const ir_node *irn)
{
Matthias Braun's avatar
Matthias Braun committed
171
	irn = skip_Proj_const(irn);
172
173
174
175
176
177
178
179
180
181
182

	if (is_TEMPLATE_irn(irn)) {
		return get_TEMPLATE_flags(irn);
	}
	else if (is_Unknown(irn)) {
		return arch_irn_flags_ignore;
	}

	return 0;
}

183
184
static ir_entity *TEMPLATE_get_frame_entity(const ir_node *node)
{
Matthias Braun's avatar
Matthias Braun committed
185
	(void) node;
186
	/* TODO: return the ir_entity assigned to the frame */
Christian Würdig's avatar
Christian Würdig committed
187
188
189
	return NULL;
}

190
191
static void TEMPLATE_set_frame_entity(ir_node *node, ir_entity *ent)
{
Matthias Braun's avatar
Matthias Braun committed
192
193
	(void) node;
	(void) ent;
194
	/* TODO: set the ir_entity assigned to the frame */
195
196
}

Christian Würdig's avatar
Christian Würdig committed
197
198
199
200
/**
 * This function is called by the generic backend to correct offsets for
 * nodes accessing the stack.
 */
201
202
static void TEMPLATE_set_frame_offset(ir_node *irn, int offset)
{
Matthias Braun's avatar
Matthias Braun committed
203
204
	(void) irn;
	(void) offset;
Christian Würdig's avatar
Christian Würdig committed
205
206
207
	/* TODO: correct offset if irn accesses the stack */
}

208
209
static int TEMPLATE_get_sp_bias(const ir_node *irn)
{
Matthias Braun's avatar
Matthias Braun committed
210
	(void) irn;
211
212
213
	return 0;
}

214
215
/* fill register allocator interface */

Matthias Braun's avatar
Matthias Braun committed
216
static const arch_irn_ops_t TEMPLATE_irn_ops = {
217
218
219
220
	TEMPLATE_get_irn_reg_req,
	TEMPLATE_set_irn_reg,
	TEMPLATE_get_irn_reg,
	TEMPLATE_classify,
Christian Würdig's avatar
Christian Würdig committed
221
222
	TEMPLATE_get_flags,
	TEMPLATE_get_frame_entity,
223
	TEMPLATE_set_frame_entity,
224
225
	TEMPLATE_set_frame_offset,
	TEMPLATE_get_sp_bias,
226
227
228
229
	NULL,    /* get_inverse             */
	NULL,    /* get_op_estimated_cost   */
	NULL,    /* possible_memory_operand */
	NULL,    /* perform_memory_operand  */
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
};

/**************************************************
 *                _                         _  __
 *               | |                       (_)/ _|
 *   ___ ___   __| | ___  __ _  ___ _ __    _| |_
 *  / __/ _ \ / _` |/ _ \/ _` |/ _ \ '_ \  | |  _|
 * | (_| (_) | (_| |  __/ (_| |  __/ | | | | | |
 *  \___\___/ \__,_|\___|\__, |\___|_| |_| |_|_|
 *                        __/ |
 *                       |___/
 **************************************************/

/**
 * Transforms the standard firm graph into
 * a TEMLPATE firm graph
 */
static void TEMPLATE_prepare_graph(void *self) {
	TEMPLATE_code_gen_t *cg = self;

Christian Würdig's avatar
Christian Würdig committed
250
	irg_walk_blkwise_graph(cg->irg, NULL, TEMPLATE_transform_node, cg);
251
252
253
254
255
}



/**
Christian Würdig's avatar
Christian Würdig committed
256
 * Called immediatly before emit phase.
257
 */
258
259
260
261
262
static void TEMPLATE_finish_irg(void *self) {
	TEMPLATE_code_gen_t *cg = self;
	ir_graph            *irg = cg->irg;

	dump_ir_block_graph_sched(irg, "-TEMPLATE-finished");
263
264
265
}


Christian Würdig's avatar
Christian Würdig committed
266
267
268
/**
 * These are some hooks which must be filled but are probably not needed.
 */
269
static void TEMPLATE_before_sched(void *self) {
Matthias Braun's avatar
Matthias Braun committed
270
	(void) self;
Christian Würdig's avatar
Christian Würdig committed
271
	/* Some stuff you need to do after scheduling but before register allocation */
272
273
}

Matthias Braun's avatar
Matthias Braun committed
274
static void TEMPLATE_before_ra(void *self) {
Matthias Braun's avatar
Matthias Braun committed
275
	(void) self;
276
	/* Some stuff you need to do after scheduling but before register allocation */
277
278
}

279
static void TEMPLATE_after_ra(void *self) {
Matthias Braun's avatar
Matthias Braun committed
280
	(void) self;
281
	/* Some stuff you need to do immediatly after register allocation */
282
283
284
285
286
287
288
289
}



/**
 * Emits the code, closes the output file and frees
 * the code generator interface.
 */
Christian Würdig's avatar
Christian Würdig committed
290
static void TEMPLATE_emit_and_done(void *self) {
291
292
293
	TEMPLATE_code_gen_t *cg = self;
	ir_graph           *irg = cg->irg;

Matthias Braun's avatar
Matthias Braun committed
294
	TEMPLATE_gen_routine(cg, irg);
295
296
297
298
299

	cur_reg_set = NULL;

	/* de-allocate code generator */
	del_set(cg->reg_set);
300
	free(cg);
301
302
}

Matthias Braun's avatar
Matthias Braun committed
303
static void *TEMPLATE_cg_init(be_irg_t *birg);
304
305
306

static const arch_code_generator_if_t TEMPLATE_code_gen_if = {
	TEMPLATE_cg_init,
307
	NULL,                    /* get_pic_base hook */
Matthias Braun's avatar
Matthias Braun committed
308
	NULL,                    /* before abi introduce hook */
309
	TEMPLATE_prepare_graph,
Matthias Braun's avatar
Matthias Braun committed
310
	NULL,                    /* spill hook */
311
312
	TEMPLATE_before_sched,   /* before scheduling hook */
	TEMPLATE_before_ra,      /* before register allocation hook */
313
	TEMPLATE_after_ra,       /* after register allocation hook */
314
	TEMPLATE_finish_irg,
Christian Würdig's avatar
Christian Würdig committed
315
	TEMPLATE_emit_and_done
316
317
318
319
320
};

/**
 * Initializes the code generator.
 */
Matthias Braun's avatar
Matthias Braun committed
321
static void *TEMPLATE_cg_init(be_irg_t *birg) {
322
	const arch_env_t    *arch_env = be_get_birg_arch_env(birg);
323
	TEMPLATE_isa_t      *isa      = (TEMPLATE_isa_t *) arch_env;
324
	TEMPLATE_code_gen_t *cg       = XMALLOC(TEMPLATE_code_gen_t);
325

Christian Würdig's avatar
Christian Würdig committed
326
	cg->impl     = &TEMPLATE_code_gen_if;
327
	cg->irg      = be_get_birg_irg(birg);
Christian Würdig's avatar
Christian Würdig committed
328
	cg->reg_set  = new_set(TEMPLATE_cmp_irn_reg_assoc, 1024);
329
	cg->arch_env = arch_env;
330
	cg->isa      = isa;
Christian Würdig's avatar
Christian Würdig committed
331
	cg->birg     = birg;
332
	FIRM_DBG_REGISTER(cg->mod, "firm.be.TEMPLATE.cg");
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350

	cur_reg_set = cg->reg_set;

	return (arch_code_generator_t *)cg;
}



/*****************************************************************
 *  ____             _                  _   _____  _____
 * |  _ \           | |                | | |_   _|/ ____|  /\
 * | |_) | __ _  ___| | _____ _ __   __| |   | | | (___   /  \
 * |  _ < / _` |/ __| |/ / _ \ '_ \ / _` |   | |  \___ \ / /\ \
 * | |_) | (_| | (__|   <  __/ | | | (_| |  _| |_ ____) / ____ \
 * |____/ \__,_|\___|_|\_\___|_| |_|\__,_| |_____|_____/_/    \_\
 *
 *****************************************************************/

Christian Würdig's avatar
Christian Würdig committed
351
static TEMPLATE_isa_t TEMPLATE_isa_template = {
Matthias Braun's avatar
Matthias Braun committed
352
353
354
355
356
	{
		&TEMPLATE_isa_if,             /* isa interface implementation */
		&TEMPLATE_general_purpose_regs[REG_SP],  /* stack pointer register */
		&TEMPLATE_general_purpose_regs[REG_BP],  /* base pointer register */
		-1,                          /* stack direction */
357
		2,                           /* power of two stack alignment for calls, 2^2 == 4 */
Matthias Braun's avatar
Matthias Braun committed
358
		NULL,                        /* main environment */
359
360
		7,                           /* costs for a spill instruction */
		5,                           /* costs for a reload instruction */
Matthias Braun's avatar
Matthias Braun committed
361
	},
Christian Würdig's avatar
Christian Würdig committed
362
363
};

364
365
366
/**
 * Initializes the backend ISA and opens the output file.
 */
367
static arch_env_t *TEMPLATE_init(FILE *outfile) {
Matthias Braun's avatar
Matthias Braun committed
368
	static int run_once = 0;
Christian Würdig's avatar
Christian Würdig committed
369
	TEMPLATE_isa_t *isa;
370

Matthias Braun's avatar
Matthias Braun committed
371
	if(run_once)
372
		return NULL;
Matthias Braun's avatar
Matthias Braun committed
373
	run_once = 1;
374

375
	isa = XMALLOC(TEMPLATE_isa_t);
Christian Würdig's avatar
Christian Würdig committed
376
	memcpy(isa, &TEMPLATE_isa_template, sizeof(*isa));
377

378
	be_emit_init(outfile);
379

Matthias Braun's avatar
Matthias Braun committed
380
	TEMPLATE_register_init();
Matthias Braun's avatar
Matthias Braun committed
381
	TEMPLATE_create_opcodes(&TEMPLATE_irn_ops);
382

383
	return &isa->arch_env;
384
385
386
387
388
389
390
391
}



/**
 * Closes the output file and frees the ISA structure.
 */
static void TEMPLATE_done(void *self) {
Matthias Braun's avatar
Matthias Braun committed
392
393
394
	TEMPLATE_isa_t *isa = self;

	/* emit now all global declarations */
395
	be_gas_emit_decls(isa->arch_env.main_env, 0);
Matthias Braun's avatar
Matthias Braun committed
396

397
	be_emit_exit();
398
399
400
401
402
	free(self);
}



403
static unsigned TEMPLATE_get_n_reg_class(const void *self)
Matthias Braun's avatar
Matthias Braun committed
404
405
{
	(void) self;
406
407
408
	return N_CLASSES;
}

Matthias Braun's avatar
Matthias Braun committed
409
static const arch_register_class_t *TEMPLATE_get_reg_class(const void *self,
410
                                                           unsigned i)
Matthias Braun's avatar
Matthias Braun committed
411
412
{
	(void) self;
413
	assert(i < N_CLASSES);
414
415
416
	return &TEMPLATE_reg_classes[i];
}

Christian Würdig's avatar
Christian Würdig committed
417
418
419
420
421
422
423
424


/**
 * Get the register class which shall be used to store a value of a given mode.
 * @param self The this pointer.
 * @param mode The mode in question.
 * @return A register class which can hold values of the given mode.
 */
Matthias Braun's avatar
Matthias Braun committed
425
426
427
428
const arch_register_class_t *TEMPLATE_get_reg_class_for_mode(const void *self,
		const ir_mode *mode)
{
	(void) self;
Christian Würdig's avatar
Christian Würdig committed
429
430
431
432
433
434
435
436
	if (mode_is_float(mode))
		return &TEMPLATE_reg_classes[CLASS_TEMPLATE_floating_point];
	else
		return &TEMPLATE_reg_classes[CLASS_TEMPLATE_general_purpose];
}



Michael Beck's avatar
Michael Beck committed
437
438
439
440
441
442
443
444
typedef struct {
	be_abi_call_flags_bits_t flags;
	const arch_env_t *arch_env;
	ir_graph *irg;
} TEMPLATE_abi_env_t;

static void *TEMPLATE_abi_init(const be_abi_call_t *call, const arch_env_t *arch_env, ir_graph *irg)
{
445
	TEMPLATE_abi_env_t *env = XMALLOC(TEMPLATE_abi_env_t);
Michael Beck's avatar
Michael Beck committed
446
447
448
449
450
451
452
	be_abi_call_flags_t fl = be_abi_call_get_flags(call);
	env->flags    = fl.bits;
	env->irg      = irg;
	env->arch_env = arch_env;
	return env;
}

Christian Würdig's avatar
Christian Würdig committed
453
/**
Michael Beck's avatar
Michael Beck committed
454
455
456
 * Get the between type for that call.
 * @param self The callback object.
 * @return The between type of for that call.
Christian Würdig's avatar
Christian Würdig committed
457
 */
Matthias Braun's avatar
Matthias Braun committed
458
459
static ir_type *TEMPLATE_get_between_type(void *self)
{
Christian Würdig's avatar
Christian Würdig committed
460
	static ir_type *between_type = NULL;
Matthias Braun's avatar
Matthias Braun committed
461
462
	static ir_entity *old_bp_ent = NULL;
	(void) self;
Christian Würdig's avatar
Christian Würdig committed
463
464

	if(!between_type) {
465
		ir_entity *ret_addr_ent;
Christian Würdig's avatar
Christian Würdig committed
466
467
468
469
470
471
472
		ir_type *ret_addr_type = new_type_primitive(new_id_from_str("return_addr"), mode_P);
		ir_type *old_bp_type   = new_type_primitive(new_id_from_str("bp"), mode_P);

		between_type           = new_type_class(new_id_from_str("TEMPLATE_between_type"));
		old_bp_ent             = new_entity(between_type, new_id_from_str("old_bp"), old_bp_type);
		ret_addr_ent           = new_entity(between_type, new_id_from_str("old_bp"), ret_addr_type);

Michael Beck's avatar
Michael Beck committed
473
474
		set_entity_offset(old_bp_ent, 0);
		set_entity_offset(ret_addr_ent, get_type_size_bytes(old_bp_type));
Christian Würdig's avatar
Christian Würdig committed
475
476
477
478
479
480
		set_type_size_bytes(between_type, get_type_size_bytes(old_bp_type) + get_type_size_bytes(ret_addr_type));
	}

	return between_type;
}

Michael Beck's avatar
Michael Beck committed
481
482
483
484
485
static void TEMPLATE_abi_dont_save_regs(void *self, pset *s)
{
	TEMPLATE_abi_env_t *env = self;
	if (env->flags.try_omit_fp) {
		/* insert the BP register into the ignore set */
486
		pset_insert_ptr(s, env->arch_env->bp);
Michael Beck's avatar
Michael Beck committed
487
488
489
490
491
492
	}
}

/**
 * Build the prolog, return the BASE POINTER register
 */
Matthias Braun's avatar
Matthias Braun committed
493
static const arch_register_t *TEMPLATE_abi_prologue(void *self, ir_node **mem,
494
                                                    pmap *reg_map, int *stack_bias)
Matthias Braun's avatar
Matthias Braun committed
495
{
Michael Beck's avatar
Michael Beck committed
496
	TEMPLATE_abi_env_t *env = self;
Matthias Braun's avatar
Matthias Braun committed
497
498
	(void) reg_map;
	(void) mem;
499
	(void) stack_bias;
Michael Beck's avatar
Michael Beck committed
500
501

	if(env->flags.try_omit_fp)
502
503
		return env->arch_env->sp;
	return env->arch_env->bp;
Michael Beck's avatar
Michael Beck committed
504
505
506
}

/* Build the epilog */
Matthias Braun's avatar
Matthias Braun committed
507
508
509
510
511
512
513
static void TEMPLATE_abi_epilogue(void *self, ir_node *bl, ir_node **mem,
                                  pmap *reg_map)
{
	(void) self;
	(void) bl;
	(void) mem;
	(void) reg_map;
Michael Beck's avatar
Michael Beck committed
514
515
516
517
518
519
520
521
}

static const be_abi_callbacks_t TEMPLATE_abi_callbacks = {
	TEMPLATE_abi_init,
	free,
	TEMPLATE_get_between_type,
	TEMPLATE_abi_dont_save_regs,
	TEMPLATE_abi_prologue,
522
	TEMPLATE_abi_epilogue,
Michael Beck's avatar
Michael Beck committed
523
524
};

Christian Würdig's avatar
Christian Würdig committed
525
526
527
528
529
530
/**
 * Get the ABI restrictions for procedure calls.
 * @param self        The this pointer.
 * @param method_type The type of the method (procedure) in question.
 * @param abi         The abi object to be modified
 */
Matthias Braun's avatar
Matthias Braun committed
531
532
533
void TEMPLATE_get_call_abi(const void *self, ir_type *method_type,
                           be_abi_call_t *abi)
{
Christian Würdig's avatar
Christian Würdig committed
534
535
536
	ir_type  *tp;
	ir_mode  *mode;
	int       i, n = get_method_n_params(method_type);
537
	be_abi_call_flags_t call_flags;
Matthias Braun's avatar
Matthias Braun committed
538
	(void) self;
539
540
541
542
543
544
545

	/* set abi flags for calls */
	call_flags.bits.left_to_right         = 0;
	call_flags.bits.store_args_sequential = 1;
	call_flags.bits.try_omit_fp           = 1;
	call_flags.bits.fp_free               = 0;
	call_flags.bits.call_has_imm          = 1;
Christian Würdig's avatar
Christian Würdig committed
546
547

	/* set stack parameter passing style */
Michael Beck's avatar
Michael Beck committed
548
	be_abi_call_set_flags(abi, call_flags, &TEMPLATE_abi_callbacks);
Christian Würdig's avatar
Christian Würdig committed
549
550
551
552
553
554
555

	for (i = 0; i < n; i++) {
		/* TODO: implement register parameter: */
		/* reg = get reg for param i;          */
		/* be_abi_call_param_reg(abi, i, reg); */

		/* default: all parameters on stack */
556
557
558
		tp   = get_method_param_type(method_type, i);
		mode = get_type_mode(tp);
		be_abi_call_param_stack(abi, i, mode, 4, 0, 0);
Christian Würdig's avatar
Christian Würdig committed
559
560
561
562
563
564
565
566
567
568
569
570
571
	}

	/* TODO: set correct return register */
	/* default: return value is in R0 resp. F0 */
	if (get_method_n_ress(method_type) > 0) {
		tp   = get_method_res_type(method_type, 0);
		mode = get_type_mode(tp);

		be_abi_call_res_reg(abi, 0,
			mode_is_float(mode) ? &TEMPLATE_floating_point_regs[REG_F0] : &TEMPLATE_general_purpose_regs[REG_R0]);
	}
}

Matthias Braun's avatar
Matthias Braun committed
572
573
574
575
int TEMPLATE_to_appear_in_schedule(void *block_env, const ir_node *irn)
{
	(void) block_env;

576
577
578
579
	if(!is_TEMPLATE_irn(irn))
		return -1;

	return 1;
580
581
582
583
584
}

/**
 * Initializes the code generator interface.
 */
Matthias Braun's avatar
Matthias Braun committed
585
586
587
588
static const arch_code_generator_if_t *TEMPLATE_get_code_generator_if(
		void *self)
{
	(void) self;
589
590
591
592
593
594
595
596
	return &TEMPLATE_code_gen_if;
}

list_sched_selector_t TEMPLATE_sched_selector;

/**
 * Returns the reg_pressure scheduler with to_appear_in_schedule() overloaded
 */
Matthias Braun's avatar
Matthias Braun committed
597
598
599
600
static const list_sched_selector_t *TEMPLATE_get_list_sched_selector(
		const void *self, list_sched_selector_t *selector)
{
	(void) self;
Matthias Braun's avatar
Matthias Braun committed
601
602
	(void) selector;

603
	TEMPLATE_sched_selector = trivial_selector;
604
605
606
607
	TEMPLATE_sched_selector.to_appear_in_schedule = TEMPLATE_to_appear_in_schedule;
	return &TEMPLATE_sched_selector;
}

Matthias Braun's avatar
Matthias Braun committed
608
609
610
611
static const ilp_sched_selector_t *TEMPLATE_get_ilp_sched_selector(
		const void *self)
{
	(void) self;
Michael Beck's avatar
Michael Beck committed
612
613
614
	return NULL;
}

615
616
617
/**
 * Returns the necessary byte alignment for storing a register of given class.
 */
Matthias Braun's avatar
Matthias Braun committed
618
619
static int TEMPLATE_get_reg_class_alignment(const void *self,
                                            const arch_register_class_t *cls) {
620
	ir_mode *mode = arch_register_class_mode(cls);
Matthias Braun's avatar
Matthias Braun committed
621
	(void) self;
622
623
624
	return get_mode_size_bytes(mode);
}

625
626
627
/**
 * Returns the libFirm configuration parameter for this backend.
 */
628
static const backend_params *TEMPLATE_get_backend_params(void) {
629
	static backend_params p = {
630
631
		0,     /* no dword lowering */
		0,     /* no inline assembly */
632
		0,     /* no immediate floating point mode. */
633
634
635
636
		NULL,  /* no additional opcodes */
		NULL,  /* will be set later */
		NULL,  /* no creator function */
		NULL,  /* context for create_intrinsic_fkt */
Michael Beck's avatar
Michael Beck committed
637
		NULL,  /* parameter for if conversion */
638
		NULL   /* no immediate fp mode */
639
640
641
642
	};
	return &p;
}

Matthias Braun's avatar
Matthias Braun committed
643
644
645
646
647
static const be_execution_unit_t ***TEMPLATE_get_allowed_execution_units(
		const void *self, const ir_node *irn)
{
	(void) self;
	(void) irn;
Michael Beck's avatar
Michael Beck committed
648
649
650
651
652
	/* TODO */
	assert(0);
	return NULL;
}

Matthias Braun's avatar
Matthias Braun committed
653
654
655
static const be_machine_t *TEMPLATE_get_machine(const void *self)
{
	(void) self;
Michael Beck's avatar
Michael Beck committed
656
657
658
659
660
	/* TODO */
	assert(0);
	return NULL;
}

Matthias Braun's avatar
Matthias Braun committed
661
662
663
664
665
static ir_graph **TEMPLATE_get_backend_irg_list(const void *self,
                                                ir_graph ***irgs)
{
	(void) self;
	(void) irgs;
666
667
668
	return NULL;
}

669
670
671
672
673
674
675
676
static asm_constraint_flags_t TEMPLATE_parse_asm_constraint(const void *self,
                                                            const char **c)
{
	(void) self;
	(void) c;
	return ASM_CONSTRAINT_FLAG_INVALID;
}

677
static int TEMPLATE_is_valid_clobber(const void *self, const char *clobber)
678
679
680
{
	(void) self;
	(void) clobber;
681
	return 0;
682
}
Michael Beck's avatar
Michael Beck committed
683

684
685
686
687
688
const arch_isa_if_t TEMPLATE_isa_if = {
	TEMPLATE_init,
	TEMPLATE_done,
	TEMPLATE_get_n_reg_class,
	TEMPLATE_get_reg_class,
Christian Würdig's avatar
Christian Würdig committed
689
690
	TEMPLATE_get_reg_class_for_mode,
	TEMPLATE_get_call_abi,
691
692
	TEMPLATE_get_code_generator_if,
	TEMPLATE_get_list_sched_selector,
Michael Beck's avatar
Michael Beck committed
693
	TEMPLATE_get_ilp_sched_selector,
694
	TEMPLATE_get_reg_class_alignment,
695
    TEMPLATE_get_backend_params,
Michael Beck's avatar
Michael Beck committed
696
	TEMPLATE_get_allowed_execution_units,
697
	TEMPLATE_get_machine,
698
	TEMPLATE_get_backend_irg_list,
699
	NULL,                    /* mark remat */
700
701
	TEMPLATE_parse_asm_constraint,
	TEMPLATE_is_valid_clobber
702
};
703
704
705
706
707
708
709

void be_init_arch_TEMPLATE(void)
{
	be_register_isa_if("TEMPLATE", &TEMPLATE_isa_if);
}

BE_REGISTER_MODULE_CONSTRUCTOR(be_init_arch_TEMPLATE);