amd64_transform.c 78.2 KB
Newer Older
1
2
/*
 * This file is part of libFirm.
3
 * Copyright (C) 2012 University of Karlsruhe.
4
5
6
7
8
9
 */

/**
 * @file
 * @brief   code selection (transform FIRM into amd64 FIRM)
 */
Matthias Braun's avatar
Matthias Braun committed
10
#include "debug.h"
Matthias Braun's avatar
Matthias Braun committed
11
#include "panic.h"
Matthias Braun's avatar
Matthias Braun committed
12
13
14
#include "heights.h"
#include "ircons.h"
#include "irgmod.h"
15
16
#include "irgraph_t.h"
#include "irmode_t.h"
Matthias Braun's avatar
Matthias Braun committed
17
#include "irnode_t.h"
18
#include "iropt_t.h"
19
#include "tv_t.h"
Matthias Braun's avatar
Matthias Braun committed
20
#include "util.h"
21

22
23
24
#include "benode.h"
#include "betranshlp.h"
#include "beutil.h"
25
#include "bearch_amd64_t.h"
26
#include "beirg.h"
Matthias Braun's avatar
Matthias Braun committed
27
#include "besched.h"
28

Matthias Braun's avatar
Matthias Braun committed
29
30
#include "amd64_cconv.h"
#include "amd64_new_nodes.h"
31
32
#include "amd64_nodes_attr.h"
#include "amd64_transform.h"
Matthias Braun's avatar
Matthias Braun committed
33
#include "../ia32/x86_address_mode.h"
34
35
36
37
38

#include "gen_amd64_regalloc_if.h"

DEBUG_ONLY(static firm_dbg_module_t *dbg = NULL;)

39
static ir_mode         *mode_gp;
Matthias Braun's avatar
Matthias Braun committed
40
static ir_mode         *mode_flags;
41
static amd64_cconv_t   *current_cconv = NULL;
42
static be_start_info_t  start_mem;
43
static be_start_info_t  start_val[N_AMD64_REGISTERS];
44
45
46
47
static size_t           start_callee_saves_offset;
static size_t           start_params_offset;
static pmap            *node_to_stack;
static be_stackorder_t *stackorder;
48

Matthias Braun's avatar
Matthias Braun committed
49
static const arch_register_req_t amd64_requirement_gp = {
50
51
52
53
54
55
	.cls             = &amd64_reg_classes[CLASS_amd64_gp],
	.limited         = NULL,
	.type            = arch_register_req_type_normal,
	.other_same      = 0,
	.other_different = 0,
	.width           = 1,
56
57
58
};

static const arch_register_req_t amd64_requirement_flags = {
59
60
61
62
63
64
	.cls             = &amd64_reg_classes[CLASS_amd64_flags],
	.limited         = NULL,
	.type            = arch_register_req_type_normal,
	.other_same      = 0,
	.other_different = 0,
	.width           = 1,
65
66
67
};

static const arch_register_req_t amd64_requirement_xmm = {
68
69
70
71
72
73
	.cls             = &amd64_reg_classes[CLASS_amd64_xmm],
	.limited         = NULL,
	.type            = arch_register_req_type_normal,
	.other_same      = 0,
	.other_different = 0,
	.width           = 1,
Matthias Braun's avatar
Matthias Braun committed
74
75
};

Matthias Braun's avatar
Matthias Braun committed
76
77
78
#define BIT(x)    (1u << x)

static const arch_register_req_t amd64_requirement_gp_same_0 = {
79
80
81
82
83
84
85
	.cls             = &amd64_reg_classes[CLASS_amd64_gp],
	.limited         = NULL,
	.type            = arch_register_req_type_normal
	                   | arch_register_req_type_should_be_same,
	.other_same      = BIT(0),
	.other_different = 0,
	.width           = 1,
Matthias Braun's avatar
Matthias Braun committed
86
87
};

88
static const arch_register_req_t amd64_requirement_xmm_same_0 = {
89
90
91
92
93
94
95
	.cls             = &amd64_reg_classes[CLASS_amd64_xmm],
	.limited         = NULL,
	.type            = arch_register_req_type_normal
	                   | arch_register_req_type_should_be_same,
	.other_same      = BIT(0),
	.other_different = 0,
	.width           = 1,
96
97
};

Matthias Braun's avatar
Matthias Braun committed
98
static const arch_register_req_t amd64_requirement_gp_same_0_not_1 = {
99
100
101
102
103
104
105
106
	.cls             = &amd64_reg_classes[CLASS_amd64_gp],
	.limited         = NULL,
	.type            = arch_register_req_type_normal
	                   | arch_register_req_type_should_be_same
	                   | arch_register_req_type_must_be_different,
	.other_same      = BIT(0),
	.other_different = BIT(1),
	.width           = 1,
Matthias Braun's avatar
Matthias Braun committed
107
108
109
110
};

static const unsigned amd64_limited_gp_rcx [] = { BIT(REG_GP_RCX) };
static const arch_register_req_t amd64_requirement_rcx = {
111
112
113
114
115
116
	.cls             = &amd64_reg_classes[CLASS_amd64_gp],
	.limited         = amd64_limited_gp_rcx,
	.type            = arch_register_req_type_limited,
	.other_same      = 0,
	.other_different = 0,
	.width           = 1,
Matthias Braun's avatar
Matthias Braun committed
117
118
};

119
120
static const unsigned amd64_limited_gp_rax [] = { BIT(REG_GP_RAX) };
static const arch_register_req_t amd64_requirement_rax = {
121
122
123
124
125
126
	.cls             = &amd64_reg_classes[CLASS_amd64_gp],
	.limited         = amd64_limited_gp_rax,
	.type            = arch_register_req_type_limited,
	.other_same      = 0,
	.other_different = 0,
	.width           = 1,
127
128
};

129
130
static const unsigned amd64_limited_gp_rdx [] = { BIT(REG_GP_RDX) };
static const arch_register_req_t amd64_requirement_rdx = {
131
132
133
134
135
136
	.cls             = &amd64_reg_classes[CLASS_amd64_gp],
	.limited         = amd64_limited_gp_rdx,
	.type            = arch_register_req_type_limited,
	.other_same      = 0,
	.other_different = 0,
	.width           = 1,
137
138
};

Matthias Braun's avatar
Matthias Braun committed
139
140
141
142
143
144
static const arch_register_req_t *mem_reqs[] = {
	&arch_no_requirement,
};

static const arch_register_req_t *reg_mem_reqs[] = {
	&amd64_requirement_gp,
Matthias Braun's avatar
Matthias Braun committed
145
146
147
	&arch_no_requirement,
};

148
149
150
151
152
static const arch_register_req_t *xmm_mem_reqs[] = {
	&amd64_requirement_xmm,
	&arch_no_requirement,
};

Matthias Braun's avatar
Matthias Braun committed
153
154
static const arch_register_req_t *reg_reg_mem_reqs[] = {
	&amd64_requirement_gp,
Matthias Braun's avatar
Matthias Braun committed
155
156
157
158
	&amd64_requirement_gp,
	&arch_no_requirement,
};

159
160
161
162
163
164
static const arch_register_req_t *xmm_reg_mem_reqs[] = {
	&amd64_requirement_xmm,
	&amd64_requirement_gp,
	&arch_no_requirement,
};

Matthias Braun's avatar
Matthias Braun committed
165
166
static const arch_register_req_t *reg_reg_reg_mem_reqs[] = {
	&amd64_requirement_gp,
Matthias Braun's avatar
Matthias Braun committed
167
168
169
170
171
	&amd64_requirement_gp,
	&amd64_requirement_gp,
	&arch_no_requirement,
};

172
173
174
175
176
177
178
static const arch_register_req_t *xmm_reg_reg_mem_reqs[] = {
	&amd64_requirement_xmm,
	&amd64_requirement_gp,
	&amd64_requirement_gp,
	&arch_no_requirement,
};

Tobias Rapp's avatar
Tobias Rapp committed
179
static const arch_register_req_t *reg_flags_reqs[] = {
180
181
182
183
	&amd64_requirement_gp,
	&amd64_requirement_flags,
};

Matthias Braun's avatar
Matthias Braun committed
184
185
static const arch_register_req_t *reg_reg_reqs[] = {
	&amd64_requirement_gp,
186
187
188
	&amd64_requirement_gp,
};

189
190
191
192
193
static const arch_register_req_t *rax_reg_reqs[] = {
	&amd64_requirement_rax,
	&amd64_requirement_gp,
};

194
static const arch_register_req_t *rax_reg_rdx_mem_reqs[] = {
195
196
197
	&amd64_requirement_rax,
	&amd64_requirement_gp,
	&amd64_requirement_rdx,
198
	&arch_no_requirement,
199
200
};

Matthias Braun's avatar
Matthias Braun committed
201
202
203
204
static const arch_register_req_t *reg_reqs[] = {
	&amd64_requirement_gp,
};

205
206
207
208
static const arch_register_req_t *xmm_reqs[] = {
	&amd64_requirement_xmm,
};

Matthias Braun's avatar
Matthias Braun committed
209
210
211
212
213
static const arch_register_req_t *reg_rcx_reqs[] = {
	&amd64_requirement_gp,
	&amd64_requirement_rcx,
};

214
215
216
static const arch_register_req_t *no_reqs[] = {
};

217
218
219
220
221
static const arch_register_req_t *xmm_xmm_reqs[] = {
	&amd64_requirement_xmm,
	&amd64_requirement_xmm,
};

Matthias Braun's avatar
Matthias Braun committed
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
static inline bool mode_needs_gp_reg(ir_mode *mode)
{
	return get_mode_arithmetic(mode) == irma_twos_complement;
}

static bool is_downconv(const ir_node *node)
{
	if (!is_Conv(node))
		return false;

	ir_mode *dest_mode = get_irn_mode(node);
	if (!mode_needs_gp_reg(dest_mode))
		return false;
	ir_mode *src_mode = get_irn_mode(get_Conv_op(node));
	if (!mode_needs_gp_reg(src_mode))
		return false;
	return get_mode_size_bits(dest_mode) <= get_mode_size_bits(src_mode);
}

static ir_node *skip_downconv(ir_node *node)
{
	while (is_downconv(node)) {
		if (get_irn_n_edges(node) > 1)
			break;
		node = get_Conv_op(node);
	}
	return node;
}

static bool is_sameconv(const ir_node *node)
{
	if (!is_Conv(node))
		return false;
	ir_mode *dest_mode = get_irn_mode(node);
	if (!mode_needs_gp_reg(dest_mode))
		return false;
	ir_mode *src_mode = get_irn_mode(get_Conv_op(node));
	if (!mode_needs_gp_reg(src_mode))
		return false;
	return get_mode_size_bits(dest_mode) == get_mode_size_bits(src_mode);
}

static ir_node *skip_sameconv(ir_node *node)
265
{
Matthias Braun's avatar
Matthias Braun committed
266
267
268
269
270
271
	while (is_sameconv(node)) {
		if (get_irn_n_edges(node) > 1)
			break;
		node = get_Conv_op(node);
	}
	return node;
272
273
}

274
275
static ir_node *get_initial_sp(ir_graph *irg)
{
276
	return be_get_start_proj(irg, &start_val[REG_RSP]);
277
278
279
280
}

static ir_node *get_initial_fp(ir_graph *irg)
{
281
	return be_get_start_proj(irg, &start_val[REG_RBP]);
282
283
284
285
}

static ir_node *get_initial_mem(ir_graph *irg)
{
286
	return be_get_start_proj(irg, &start_mem);
287
288
289
290
291
292
293
294
295
296
}

static ir_node *get_frame_base(ir_graph *irg)
{
	if (current_cconv->omit_fp) {
		return get_initial_sp(irg);
	} else {
		return get_initial_fp(irg);
	}
}
297

298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
static amd64_insn_mode_t get_insn_mode_from_mode(const ir_mode *mode)
{
	switch (get_mode_size_bits(mode)) {
	case  8: return INSN_MODE_8;
	case 16: return INSN_MODE_16;
	case 32: return INSN_MODE_32;
	case 64: return INSN_MODE_64;
	}
	panic("unexpected mode");
}

ir_entity *create_float_const_entity(ir_graph *const irg,
                                     ir_tarval *const tv)
{
	const arch_env_t *arch_env = be_get_irg_arch_env(irg);
	amd64_isa_t      *isa      = (amd64_isa_t*) arch_env;
	ir_entity        *entity   = pmap_get(ir_entity, isa->constants, tv);
	if (entity != NULL)
		return entity;

	ir_mode *mode = get_tarval_mode(tv);
	ir_type *type = get_type_for_mode(mode);
	ir_type *glob = get_glob_type();

	entity = new_entity(glob, id_unique("C%u"), type);
	set_entity_visibility(entity, ir_visibility_private);
	add_entity_linkage(entity, IR_LINKAGE_CONSTANT);

	ir_initializer_t *initializer = create_initializer_tarval(tv);
	set_entity_initializer(entity, initializer);

	pmap_insert(isa->constants, tv, entity);
	return entity;
}

static ir_node *create_float_const(dbg_info *dbgi, ir_node *block,
                            ir_tarval *tv)
{
	ir_graph  *irg     = get_irn_irg(block);
	ir_mode   *tv_mode = get_tarval_mode(tv);
	ir_entity *entity  = create_float_const_entity(irg, tv);
	ir_node   *nomem   = get_irg_no_mem(irg);

	ir_node *in[] = { nomem };
	amd64_addr_t addr;
	memset(&addr, 0, sizeof(addr));

	addr.immediate.entity       = entity;
	amd64_insn_mode_t insn_mode = get_insn_mode_from_mode(tv_mode);

	addr.base_input  = NO_INPUT;
	addr.index_input = NO_INPUT;

	ir_node *load = new_bd_amd64_xMovs(dbgi, block, ARRAY_SIZE(in), in,
	                                   insn_mode, AMD64_OP_ADDR, addr);

	arch_set_irn_register_reqs_in(load, mem_reqs);
	set_irn_pinned(load, op_pin_state_floats);

	return new_r_Proj(load, tv_mode, pn_amd64_xMovs_res);
}

ir_tarval *create_sign_tv(ir_mode *mode)
{
	unsigned size = get_mode_size_bits(mode);
	ir_tarval *tv;
	if (size == 32) {
		tv = get_mode_one(mode_Iu);
		tv = tarval_shl_unsigned(tv, 31);
	} else {
		assert(size == 64);
		tv = get_mode_one(mode_Lu);
		tv = tarval_shl_unsigned(tv, 63);
	}
	return tarval_bitcast(tv, mode);
}

375
376
static ir_node *gen_Const(ir_node *node)
{
377
	ir_node  *block = be_transform_node(get_nodes_block(node));
378
	dbg_info *dbgi  = get_irn_dbg_info(node);
379
	ir_mode  *mode  = get_irn_mode(node);
380
	ir_tarval *tv = get_Const_tarval(node);
381
382
383

	if (!mode_needs_gp_reg(mode)) {
		if (tarval_is_null(tv)) {
384
			return new_bd_amd64_xXorp0(dbgi, block);
385
386
		}

387
		return create_float_const(dbgi, block, tv);
388
389
	}

390
391
	uint64_t val = get_tarval_uint64(tv);
	amd64_insn_mode_t imode = val > UINT32_MAX ? INSN_MODE_64 : INSN_MODE_32;
Matthias Braun's avatar
Matthias Braun committed
392
	return new_bd_amd64_MovImm(dbgi, block, imode, val, NULL);
393
394
}

Matthias Braun's avatar
Matthias Braun committed
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
typedef enum reference_mode_t {
	REFERENCE_DIRECT,
	REFERENCE_IP_RELATIVE,
	REFERENCE_GOT,
} reference_mode_t;

static reference_mode_t need_relative_addressing(const ir_entity *entity)
{
	if (!be_options.pic)
		return REFERENCE_DIRECT;

	/* simply everything is instruction pointer relative, external functions
	 * use a global offset table */
	return entity_has_definition(entity)
	   && (get_entity_linkage(entity) & IR_LINKAGE_MERGE) == 0
	    ? REFERENCE_IP_RELATIVE : REFERENCE_GOT;
}

413
static ir_node *gen_Address(ir_node *node)
414
415
416
{
	ir_node   *block  = be_transform_node(get_nodes_block(node));
	dbg_info  *dbgi   = get_irn_dbg_info(node);
417
	ir_entity *entity = get_Address_entity(node);
418

Matthias Braun's avatar
Matthias Braun committed
419
420
	/* do we need RIP-relative addressing because of PIC? */
	reference_mode_t mode = need_relative_addressing(entity);
Matthias Braun's avatar
Matthias Braun committed
421
	if (mode == REFERENCE_DIRECT)
Matthias Braun's avatar
Matthias Braun committed
422
423
424
425
		return new_bd_amd64_MovImm(dbgi, block, INSN_MODE_64, 0, entity);

	amd64_addr_t addr;
	memset(&addr, 0, sizeof(addr));
426
	addr.base_input  = NO_INPUT;
Matthias Braun's avatar
Matthias Braun committed
427
428
	addr.index_input = NO_INPUT;
	addr.mem_input   = NO_INPUT;
Matthias Braun's avatar
Matthias Braun committed
429
430

	if (mode == REFERENCE_IP_RELATIVE) {
Matthias Braun's avatar
Matthias Braun committed
431
		addr.immediate.entity = entity;
432
		return new_bd_amd64_Lea(dbgi, block, 0, NULL, INSN_MODE_64, addr);
Matthias Braun's avatar
Matthias Braun committed
433
434
	} else {
		assert(mode == REFERENCE_GOT);
Matthias Braun's avatar
Matthias Braun committed
435
		addr.immediate.entity = new_got_entry_entity(entity);
436
437
		ir_node *load = new_bd_amd64_Mov(dbgi, block, 0, NULL, INSN_MODE_64,
										 AMD64_OP_ADDR, addr);
Matthias Braun's avatar
Matthias Braun committed
438
		return new_r_Proj(load, mode_gp, pn_amd64_Mov_res);
Matthias Braun's avatar
Matthias Braun committed
439
440
441
	}
}

442
443
ir_node *amd64_new_IncSP(ir_node *block, ir_node *old_sp, int offset,
                         unsigned align)
Tobias Rapp's avatar
Tobias Rapp committed
444
{
445
446
447
448
	ir_node *incsp = be_new_IncSP(&amd64_registers[REG_RSP], block, old_sp,
	                              offset, align);
	arch_add_irn_flags(incsp, arch_irn_flag_modify_flags);
	return incsp;
Tobias Rapp's avatar
Tobias Rapp committed
449
450
}

Matthias Braun's avatar
Matthias Braun committed
451
typedef ir_node *(*construct_binop_func)(dbg_info *dbgi, ir_node *block,
Matthias Braun's avatar
Matthias Braun committed
452
	int arity, ir_node *in[], const amd64_binop_addr_attr_t *attr_init);
Matthias Braun's avatar
Matthias Braun committed
453

454
455
456
457
typedef ir_node *(*construct_rax_binop_func)(dbg_info *dbgi, ir_node *block,
	int arity, ir_node *in[], amd64_insn_mode_t insn_mode,
	amd64_op_mode_t op_mode, amd64_addr_t addr);

Matthias Braun's avatar
Matthias Braun committed
458
459
460
461
462
463
464
465
typedef enum match_flags_t {
	match_am           = 1 << 0,
	match_mode_neutral = 1 << 1,
	match_immediate    = 1 << 2,
	match_commutative  = 1 << 3,
} match_flags_t;

typedef struct amd64_args_t {
Matthias Braun's avatar
Matthias Braun committed
466
467
468
469
	amd64_binop_addr_attr_t     attr;
	ir_node                    *mem_proj;
	ir_node                    *in[4];
	int                         arity;
Matthias Braun's avatar
Matthias Braun committed
470
471
472
	const arch_register_req_t **reqs;
} amd64_args_t;

Matthias Braun's avatar
Matthias Braun committed
473
static bool match_immediate_32(amd64_imm32_t *imm, const ir_node *op,
474
475
                               bool can_match_ip_relative,
                               bool upper32_dont_care)
Matthias Braun's avatar
Matthias Braun committed
476
477
{
	assert(mode_needs_gp_reg(get_irn_mode(op)));
Matthias Braun's avatar
Matthias Braun committed
478
	assert(imm->offset == 0 && imm->entity == NULL);
Matthias Braun's avatar
Matthias Braun committed
479
480
481
482
483
484
485
486
	if (is_Const(op)) {
		ir_tarval *tv = get_Const_tarval(op);
		if (!tarval_is_long(tv))
			return false;
		long    lval = get_tarval_long(tv);
		int32_t val  = (int32_t)lval;
		if ((long)val != lval)
			return false;
487
488
489
490
491
		/** the immediate value is signed extended to 64bit, sometimes
		 * this is not what we want. */
		if (!upper32_dont_care && val < 0
		    && !mode_is_signed(get_tarval_mode(tv)))
		    return false;
Matthias Braun's avatar
Matthias Braun committed
492
493
494
495
496
497
		imm->offset = val;
		return true;
	} else if (can_match_ip_relative && is_Address(op)) {
		/* TODO: check if entity is in lower 4GB address space/relative */
		ir_entity *entity = get_Address_entity(op);
		imm->entity = entity;
Matthias Braun's avatar
Matthias Braun committed
498
499
		return true;
	}
Matthias Braun's avatar
Matthias Braun committed
500
	/* TODO: SymConst, Add(SymConst, Const) ... */
Matthias Braun's avatar
Matthias Braun committed
501
502
503
504
505
	return false;
}

static ir_heights_t *heights;

506
507
508
509
510
511
512
513
514
static bool input_depends_on_load(ir_node *load, ir_node *input)
{
	ir_node *block = get_nodes_block(load);
	/* if the dependency is in another block, then we ignore it for now
	   as we only match address mode loads in the same block. */
	return get_nodes_block(input) == block
	    && heights_reachable_in_block(heights, input, load);
}

Tobias Rapp's avatar
Tobias Rapp committed
515
516
517
518
519
520
521
522
523
static void fix_node_mem_proj(ir_node *node, ir_node *mem_proj)
{
	if (mem_proj == NULL)
		return;

	ir_node *load = get_Proj_pred(mem_proj);
	be_set_transformed_node(load, node);
}

524
static ir_node *source_am_possible(ir_node *block, ir_node *node)
Matthias Braun's avatar
Matthias Braun committed
525
526
{
	if (!is_Proj(node))
527
		return NULL;
Matthias Braun's avatar
Matthias Braun committed
528
529
	ir_node *load = get_Proj_pred(node);
	if (!is_Load(load))
530
		return NULL;
531
	assert(get_Proj_num(node) == pn_Load_res);
Matthias Braun's avatar
Matthias Braun committed
532
	if (get_nodes_block(load) != block)
533
		return NULL;
Matthias Braun's avatar
Matthias Braun committed
534
535
	/* make sure we are the only user */
	if (get_irn_n_edges(node) != 1)
536
		return NULL;
Matthias Braun's avatar
Matthias Braun committed
537
538
539
	/* ia32 backend claims this can happen, use an assert for now and see
	 * if we hit it :) */
	assert(!be_is_transformed(node));
540
	return load;
Matthias Braun's avatar
Matthias Braun committed
541
542
543
544
545
546
547
548
549
550
}

static bool needs_extension(ir_node *op)
{
	ir_mode *mode = get_irn_mode(op);
	if (get_mode_size_bits(mode) >= 32)
		return false;
	return !be_upper_bits_clean(op, mode);
}

Tobias Rapp's avatar
Tobias Rapp committed
551
static ir_node *create_sext(ir_node *block, ir_node *const node, ir_mode *mode)
552
553
554
{
	amd64_insn_mode_t insn_mode = get_insn_mode_from_mode(mode);
	dbg_info *const   dbgi      = get_irn_dbg_info(node);
Tobias Rapp's avatar
Tobias Rapp committed
555
556
	ir_node  *const   new_node  = be_transform_node(node);
	ir_node  *const   new_block = be_transform_node(block);
557
558
559
560
561
562

	amd64_shift_attr_t attr;
	memset(&attr, 0, sizeof(attr));
	attr.base.op_mode = AMD64_OP_SHIFT_IMM;
	attr.insn_mode    = insn_mode;
	attr.immediate    = get_mode_size_bits(mode) - 1;
Tobias Rapp's avatar
Tobias Rapp committed
563
564
565
	ir_node *in[1]    = { new_node };
	ir_node *sext     = new_bd_amd64_Sar(dbgi, new_block, ARRAY_SIZE(in),
	                                     in, &attr);
566
567
568
569
570
571
572

	arch_set_irn_register_reqs_in(sext, reg_reqs);
	arch_set_irn_register_req_out(sext, 0, &amd64_requirement_gp_same_0);

	return sext;
}

Tobias Rapp's avatar
Tobias Rapp committed
573
static ir_node *create_zext(ir_node *block, ir_node *const node)
574
{
Tobias Rapp's avatar
Tobias Rapp committed
575
576
577
	dbg_info *const dbgi      = get_irn_dbg_info(node);
	ir_node  *const new_block = be_transform_node(block);
	ir_node  *const zero      = new_bd_amd64_Xor0(dbgi, new_block);
578
579
580
581
582

	arch_set_irn_register_reqs_in(zero, reg_reqs);
	return zero;
}

Tobias Rapp's avatar
Tobias Rapp committed
583
584
static bool use_address_matching(ir_mode *mode, match_flags_t flags,
                                 ir_node *block,
585
586
587
                                 ir_node *op1, ir_node *op2,
                                 ir_node **out_load, ir_node **out_op)
{
588
589
	if (! (flags & match_am))
		return false;
590

Tobias Rapp's avatar
Tobias Rapp committed
591
592
593
594
	unsigned mode_bits = get_mode_size_bits(mode);
	if (mode_bits == 8 || mode_bits == 16)
		return false;

595
596
597
	ir_node *load2 = source_am_possible(block, op2);
	if (load2 != NULL && !input_depends_on_load(load2, op1)) {
		(*out_load) = load2;
598
599
		(*out_op)   = op1;
		return true;
600
601
602
603
604
605
606
607
608
	}

	if (flags & match_commutative) {
		ir_node *load1 = source_am_possible(block, op1);
		if (load1 != NULL && !input_depends_on_load(load1, op2)) {
			(*out_load) = load1;
			(*out_op)   = op2;
			return true;
		}
609
610
611
612
	}
	return false;
}

613
614
static void perform_address_matching(ir_node *ptr, int *arity,
                                     ir_node **in, amd64_addr_t *addr)
615
616
617
{
	x86_address_t maddr;
	memset(&maddr, 0, sizeof(maddr));
618
	x86_create_address_mode(&maddr, ptr, x86_create_am_normal);
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633

	if (maddr.base != NULL) {
		int base_input   = (*arity)++;
		addr->base_input = base_input;
		in[base_input]   = be_transform_node(maddr.base);
	} else {
		addr->base_input = NO_INPUT;
	}
	if (maddr.index != NULL) {
		int index_input = (*arity)++;
		addr->index_input = index_input;
		in[index_input]  = be_transform_node(maddr.index);
	} else {
		addr->index_input = NO_INPUT;
	}
634
635
636
637
638
639
640
641
642
643
	if (maddr.frame_entity != NULL) {
		assert(maddr.entity == NULL);
		addr->immediate.entity = maddr.frame_entity;
		/* not supported yet */
		assert(!is_parameter_entity(maddr.frame_entity)
		       || get_entity_parameter_number(maddr.frame_entity)
		          != IR_VA_START_PARAMETER_NUMBER);
	} else {
		addr->immediate.entity = maddr.entity;
	}
644
645
646
647
	addr->immediate.offset = maddr.offset;
	addr->log_scale        = maddr.scale;
}

Matthias Braun's avatar
Matthias Braun committed
648
649
650
static void match_binop(amd64_args_t *args, ir_node *block,
                        ir_mode *mode, ir_node *op1, ir_node *op2,
                        match_flags_t flags)
Matthias Braun's avatar
Matthias Braun committed
651
652
653
{
	memset(args, 0, sizeof(*args));

654
	bool use_am;
655
	bool use_xmm       = mode_is_float(mode);
Matthias Braun's avatar
Matthias Braun committed
656
	bool use_immediate = flags & match_immediate;
657
	bool mode_neutral  = flags & match_mode_neutral;
Matthias Braun's avatar
Matthias Braun committed
658

Matthias Braun's avatar
Matthias Braun committed
659
	args->attr.base.insn_mode = get_insn_mode_from_mode(mode);
Matthias Braun's avatar
Matthias Braun committed
660
661

	/* TODO: legalize phase */
662
	if (mode_neutral) {
Matthias Braun's avatar
Matthias Braun committed
663
664
665
666
667
668
669
670
671
		op1 = skip_downconv(op1);
		op2 = skip_downconv(op2);
	} else {
		/* TODO: extend inputs? */
		(void)needs_extension;
	}

	ir_node *load;
	ir_node *op;
672

Tobias Rapp's avatar
Tobias Rapp committed
673
	use_am = use_address_matching(mode, flags, block, op1, op2, &load, &op);
674

675
676
	if (use_immediate
	    && match_immediate_32(&args->attr.u.immediate, op2, false, mode_neutral)) {
677
		assert(!use_xmm && "Can't (yet) match binop with xmm immediate");
Matthias Braun's avatar
Matthias Braun committed
678
		/* fine, we found an immediate */
Matthias Braun's avatar
Matthias Braun committed
679
680
681
		args->attr.base.base.op_mode = AMD64_OP_REG_IMM;
		args->in[args->arity++]      = be_transform_node(op1);
		args->reqs                   = reg_reqs;
682
	} else if (use_am) {
Matthias Braun's avatar
Matthias Braun committed
683
684
685
686
		ir_node *new_op        = be_transform_node(op);
		int      reg_input     = args->arity++;
		args->attr.u.reg_input = reg_input;
		args->in[reg_input]    = new_op;
687
		amd64_addr_t *addr     = &args->attr.base.addr;
Matthias Braun's avatar
Matthias Braun committed
688

689
690
691
		ir_node *ptr = get_Load_ptr(load);
		perform_address_matching(ptr, &(args->arity), args->in, addr);

692
		args->reqs = use_xmm ? xmm_mem_reqs : reg_mem_reqs;
693
		if (addr->base_input != NO_INPUT && addr->index_input != NO_INPUT) {
694
			args->reqs = use_xmm ? xmm_reg_reg_mem_reqs
695
			             : reg_reg_reg_mem_reqs;
696
		} else if (addr->base_input != NO_INPUT || addr->index_input != NO_INPUT) {
697
			args->reqs = use_xmm ? xmm_reg_mem_reqs
698
			             : reg_reg_mem_reqs;
699
700
701
702
703
		}
		ir_node *new_mem    = be_transform_node(get_Load_mem(load));
		int mem_input       = args->arity++;
		args->in[mem_input] = new_mem;
		addr->mem_input     = mem_input;
704

705
		args->mem_proj      = be_get_Proj_for_pn(load, pn_Load_M);
706
		args->attr.base.base.op_mode = AMD64_OP_ADDR_REG;
Matthias Braun's avatar
Matthias Braun committed
707
708
709
710
	} else {
		/* simply transform the arguments */
		args->in[args->arity++] = be_transform_node(op1);
		args->in[args->arity++] = be_transform_node(op2);
Matthias Braun's avatar
Matthias Braun committed
711
		args->attr.base.base.op_mode = AMD64_OP_REG_REG;
712

713
		args->reqs = use_xmm ? xmm_xmm_reqs : reg_reg_reqs;
Matthias Braun's avatar
Matthias Braun committed
714
715
716
717
718
719
720
721
722
	}
}

static ir_node *gen_binop_am(ir_node *node, ir_node *op1, ir_node *op2,
                             construct_binop_func func, match_flags_t flags)
{
	ir_node *block = get_nodes_block(node);
	ir_mode *mode  = get_irn_mode(node);
	amd64_args_t args;
Matthias Braun's avatar
Matthias Braun committed
723
	match_binop(&args, block, mode, op1, op2, flags);
Matthias Braun's avatar
Matthias Braun committed
724
725
726
727

	dbg_info *const dbgi      = get_irn_dbg_info(node);
	ir_node  *const new_block = be_transform_node(block);

Matthias Braun's avatar
Matthias Braun committed
728
	ir_node *new_node = func(dbgi, new_block, args.arity, args.in, &args.attr);
Matthias Braun's avatar
Matthias Braun committed
729
	arch_set_irn_register_reqs_in(new_node, args.reqs);
730

Tobias Rapp's avatar
Tobias Rapp committed
731
	fix_node_mem_proj(new_node, args.mem_proj);
Matthias Braun's avatar
Matthias Braun committed
732

733
734
735
	if (mode_is_float(mode)) {
		arch_set_irn_register_req_out(new_node, 0,
		                              &amd64_requirement_xmm_same_0);
Tobias Rapp's avatar
Tobias Rapp committed
736
		return new_r_Proj(new_node, mode_D, pn_amd64_xSubs_res);
737
738
739
740
741
	} else {
		arch_set_irn_register_req_out(new_node, 0,
		                              &amd64_requirement_gp_same_0);
		return new_r_Proj(new_node, mode_gp, pn_amd64_Sub_res);
	}
Matthias Braun's avatar
Matthias Braun committed
742
743
}

744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
static ir_node *gen_binop_rax(ir_node *node, ir_node *op1, ir_node *op2,
                              construct_rax_binop_func make_node,
                              match_flags_t flags)
{
	bool use_am;
	bool mode_neutral  = flags & match_mode_neutral;
	assert(! (flags & match_immediate));

	ir_mode *mode = get_irn_mode(op1);
	amd64_insn_mode_t insn_mode = get_insn_mode_from_mode(mode);

	/* TODO: legalize phase */
	if (mode_neutral) {
		op1 = skip_downconv(op1);
		op2 = skip_downconv(op2);
	} else {
		/* TODO: extend inputs? */
		(void)needs_extension;
	}

	ir_node *load;
	ir_node *op;
	ir_node *block = get_nodes_block(node);
	ir_node *in[4];
	int      arity = 0;
	const arch_register_req_t **reqs;
	amd64_op_mode_t op_mode;
	amd64_addr_t    addr;
	memset(&addr, 0, sizeof(addr));

Tobias Rapp's avatar
Tobias Rapp committed
774
	use_am = use_address_matching(mode, flags, block, op1, op2, &load, &op);
775

776
	ir_node *mem_proj = NULL;
777
778
779
780
781
	if (use_am) {
		ir_node *new_op    = be_transform_node(op);
		int      reg_input = arity++;
		in[reg_input]      = new_op;

782
783
784
785
786
787
		ir_node *ptr = get_Load_ptr(load);
		perform_address_matching(ptr, &arity, in, &addr);

		reqs = reg_mem_reqs;
		if (addr.base_input != NO_INPUT && addr.index_input != NO_INPUT) {
			reqs = reg_reg_reg_mem_reqs;
788
		} else if (addr.base_input != NO_INPUT || addr.index_input != NO_INPUT) {
789
790
791
792
793
794
795
			reqs = reg_reg_mem_reqs;
		}

		ir_node *new_mem = be_transform_node(get_Load_mem(load));
		int mem_input    = arity++;
		in[mem_input]    = new_mem;
		addr.mem_input   = mem_input;
796
797
798
799
800

		mem_proj                = be_get_Proj_for_pn(load, pn_Load_M);
		op_mode                 = AMD64_OP_RAX_ADDR;
	} else {
		/* simply transform the arguments */
801
802
803
804
		in[arity++] = be_transform_node(op1);
		in[arity++] = be_transform_node(op2);
		reqs        = rax_reg_reqs;
		op_mode     = AMD64_OP_RAX_REG;
805
806
	}

807
	assert((size_t)arity <= ARRAY_SIZE(in));
808
809
810
811
812
	dbg_info *dbgi      = get_irn_dbg_info(node);
	ir_node  *new_block = be_transform_node(block);
	ir_node  *new_node  = make_node(dbgi, new_block, arity, in, insn_mode,
	                                op_mode, addr);
	arch_set_irn_register_reqs_in(new_node, reqs);
813
814
815
	if (mem_proj != NULL) {
		be_set_transformed_node(load, new_node);
	}
816
817
818
	return new_node;
}

Matthias Braun's avatar
Matthias Braun committed
819
typedef ir_node *(*construct_shift_func)(dbg_info *dbgi, ir_node *block,
Matthias Braun's avatar
Matthias Braun committed
820
	int arity, ir_node *in[], const amd64_shift_attr_t *attr_init);
Matthias Braun's avatar
Matthias Braun committed
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835

static ir_node *gen_shift_binop(ir_node *node, ir_node *op1, ir_node *op2,
                                construct_shift_func func, match_flags_t flags)
{
	ir_mode *mode = get_irn_mode(node);
	assert(!mode_is_float(mode));

	if (get_mode_modulo_shift(mode) != 32 && get_mode_size_bits(mode) != 64)
		panic("insupported modulo shift used");

	ir_node *in[3];
	int      arity = 0;
	if (flags & match_mode_neutral) {
		op1 = skip_downconv(op1);
		in[arity++] = be_transform_node(op1);
Matthias Braun's avatar
Matthias Braun committed
836
		mode = get_mode_size_bits(mode) > 32 ? mode_gp : mode_Iu;
Matthias Braun's avatar
Matthias Braun committed
837
838
	} else {
		op1 = skip_sameconv(op1);
839
840
841

		/* Use 8/16bit operations instead of doing zext/upconv */
		in[arity++] = be_transform_node(op1);
Matthias Braun's avatar
Matthias Braun committed
842
843
844
845
846
847
	}

	/* we can skip any convs for the shift count, as it only uses the lowest
	 * 5/6 bits anyway */
	while (is_Conv(op2) && get_irn_n_edges(op2) == 1) {
		ir_node *const op = get_Conv_op(op2);
848
		if (get_mode_arithmetic(get_irn_mode(op)) != irma_twos_complement)
Matthias Braun's avatar
Matthias Braun committed
849
850
851
852
			break;
		op2 = op;
	}

Matthias Braun's avatar
Matthias Braun committed
853
854
	amd64_shift_attr_t attr;
	memset(&attr, 0, sizeof(attr));
Matthias Braun's avatar
Matthias Braun committed
855
856
857
	const arch_register_req_t **reqs;
	const arch_register_req_t  *out_req0;
	if (is_Const(op2)) {
Matthias Braun's avatar
Matthias Braun committed
858
859
860
		attr.base.op_mode = AMD64_OP_SHIFT_IMM;
		reqs              = reg_reqs;
		out_req0          = &amd64_requirement_gp_same_0;
861
		attr.immediate    = get_Const_long(op2);
Matthias Braun's avatar
Matthias Braun committed
862
	} else {
Matthias Braun's avatar
Matthias Braun committed
863
864
865
866
		attr.base.op_mode = AMD64_OP_SHIFT_REG;
		in[arity++]       = be_transform_node(op2);
		reqs              = reg_rcx_reqs;
		out_req0          = &amd64_requirement_gp_same_0_not_1;
Matthias Braun's avatar
Matthias Braun committed
867
	}
Matthias Braun's avatar
Matthias Braun committed
868
	attr.insn_mode = get_insn_mode_from_mode(mode);
Matthias Braun's avatar
Matthias Braun committed
869

Matthias Braun's avatar
Matthias Braun committed
870
871
872
873
	ir_node  *const block     = get_nodes_block(node);
	dbg_info *const dbgi      = get_irn_dbg_info(node);
	ir_node  *const new_block = be_transform_node(block);
	ir_node  *const new_node  = func(dbgi, new_block, arity, in, &attr);
Matthias Braun's avatar
Matthias Braun committed
874
875
876
	arch_set_irn_register_reqs_in(new_node, reqs);
	arch_set_irn_register_req_out(new_node, 0, out_req0);
	return new_node;
877
878
}

879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
static ir_node *create_Lea_as_Add(ir_node *node, ir_node *op1, ir_node *op2)
{
	dbg_info *const dbgi = get_irn_dbg_info(node);
	ir_node  *block      = get_nodes_block(node);
	ir_node  *new_block  = be_transform_node(block);
	ir_mode *mode        = get_irn_mode(node);

	amd64_insn_mode_t insn_mode;
	if (get_mode_size_bits(mode) <= 32)
		insn_mode = INSN_MODE_32;
	else
		insn_mode = INSN_MODE_64;

	const arch_register_req_t **reqs;
	amd64_addr_t addr;
	memset(&addr, 0, sizeof(addr));

	ir_node *in[2];
	int arity = 0;

	if (match_immediate_32(&addr.immediate, op2, false, true)) {
		in[arity++]      = be_transform_node(op1);
		reqs             = reg_reqs;
		addr.index_input = NO_INPUT;
	} else {
		in[arity++]      = be_transform_node(op1);
		in[arity++]      = be_transform_node(op2);
906
907
		addr.base_input  = 0;
		addr.index_input = 1;
908
909
910
911
912
		reqs             = reg_reg_reqs;
	}

	ir_node *res = new_bd_amd64_Lea(dbgi, new_block, arity, in, insn_mode, addr);
	arch_set_irn_register_reqs_in(res, reqs);
913
	return res;
914
915
}

Matthias Braun's avatar
Matthias Braun committed
916
917
static ir_node *gen_Add(ir_node *const node)
{
918
919
920
	match_flags_t flags = match_immediate | match_am | match_mode_neutral
	                      | match_commutative;

Matthias Braun's avatar
Matthias Braun committed
921
922
	ir_node *op1 = get_Add_left(node);
	ir_node *op2 = get_Add_right(node);
923
924
925
926
927

	ir_mode *mode  = get_irn_mode(node);
	ir_node *block = get_nodes_block(node);
	ir_node *load, *op;

928
	if (mode_is_float(mode)) {
929
		return gen_binop_am(node, op1, op2, new_bd_amd64_xAdds,
930
931
932
		                    match_commutative | match_am);
	}

933
934
935
936
937
938
939
940
	bool use_am = use_address_matching(mode, flags, block, op1, op2, &load, &op);

	ir_node *res;
	if (use_am)
		res = gen_binop_am(node, op1, op2, new_bd_amd64_Add, flags);
	else
		res = create_Lea_as_Add(node, op1, op2);

Matthias Braun's avatar
Matthias Braun committed
941
942
943
	x86_mark_non_am(node);
	return res;
}
944

Matthias Braun's avatar
Matthias Braun committed
945
static ir_node *gen_Sub(ir_node *const node)
946
{
Matthias Braun's avatar
Matthias Braun committed
947
948
	ir_node  *const op1     = get_Sub_left(node);
	ir_node  *const op2     = get_Sub_right(node);
949
	ir_mode  *const mode    = get_irn_mode(node);
950
951

	if (mode_is_float(mode)) {
952
		return gen_binop_am(node, op1, op2, new_bd_amd64_xSubs, match_am);
953
954
955
956
957
958
	} else {
		/* do not match AM yet until we have a sub->neg+add rule
		 * in amd64_finish */
		return gen_binop_am(node, op1, op2, new_bd_amd64_Sub,
		                    /* match_am | */ match_immediate);
	}
Matthias Braun's avatar
Matthias Braun committed
959
960
961
962
963
964
965
966
967
}

static ir_node *gen_And(ir_node *const node)
{
	ir_node *op1 = get_And_left(node);
	ir_node *op2 = get_And_right(node);
	return gen_binop_am(node, op1, op2, new_bd_amd64_And,
	                    match_immediate | match_am | match_mode_neutral
	                    | match_commutative);
968
969
}

Matthias Braun's avatar
Matthias Braun committed
970
971
972
973
974
975
976
977
978
979
980
981
982
static ir_node *gen_Eor(ir_node *const node)
{
	ir_node *op1 = get_Eor_left(node);
	ir_node *op2 = get_Eor_right(node);
	return gen_binop_am(node, op1, op2, new_bd_amd64_Xor,
	                    match_immediate | match_am | match_mode_neutral
	                    | match_commutative);
}

static ir_node *gen_Or(ir_node *const node)
{
	ir_node *op1 = get_Or_left(node);
	ir_node *op2 = get_Or_right(node);
983
	return gen_binop_am(node, op1, op2, new_bd_amd64_Or,
Matthias Braun's avatar
Matthias Braun committed
984
985
986
987
988
989
	                    match_immediate | match_am | match_mode_neutral
	                    | match_commutative);
}

static ir_node *gen_Mul(ir_node *const node)
{
990
991
992
993
994
995
996
	ir_node *op1  = get_Mul_left(node);
	ir_node *op2  = get_Mul_right(node);
	ir_mode *mode = get_irn_mode(node);

	if (get_mode_size_bits(mode) < 16) {
		/* imulb only supports rax - reg form */
		ir_node *new_node =
Tobias Rapp's avatar
Tobias Rapp committed
997
998
999
		            gen_binop_rax(node, op1, op2, new_bd_amd64_IMul1Op,
		                          match_mode_neutral
		                          | match_commutative);
1000
		return new_r_Proj(new_node, mode_gp, pn_amd64_IMul1Op_res_low);
Tobias Rapp's avatar
Tobias Rapp committed
1001
1002
1003
	} else if (mode_is_float(mode)) {
		return gen_binop_am(node, op1, op2, new_bd_amd64_xMuls,
		                    match_commutative | match_am);
1004
1005
	} else {
		return gen_binop_am(node, op1, op2, new_bd_amd64_IMul,
Tobias Rapp's avatar
Tobias Rapp committed
1006
1007
		                    match_immediate | match_am
		                    | match_mode_neutral | match_commutative);
1008
	}
Matthias Braun's avatar
Matthias Braun committed
1009
1010
}

1011
1012
static ir_node *gen_Mulh(ir_node *const node)
{
1013
1014
1015
1016
1017
	ir_node *op1  = get_Mulh_left(node);
	ir_node *op2  = get_Mulh_right(node);
	ir_mode *mode = get_irn_mode(op1);
	ir_node *new_node;

1018
	if (mode_is_signed(mode)) {
1019
1020
1021
		new_node = gen_binop_rax(node, op1, op2, new_bd_amd64_IMul1Op,
                        /* match_am TODO */
                        match_mode_neutral | match_commutative);
Tobias Rapp's avatar
Tobias Rapp committed
1022
		return new_r_Proj(new_node, mode_gp, pn_amd64_IMul1Op_res_high);
1023
1024
	} else {
		new_node = gen_binop_rax(node, op1, op2, new_bd_amd64_Mul,
1025
1026
                         /* match_am TODO */
                         match_mode_neutral | match_commutative);
1027
1028
		return new_r_Proj(new_node, mode_gp, pn_amd64_Mul_res_high);
	}
1029
1030
}

Matthias Braun's avatar
Matthias Braun committed
1031
1032
1033
1034
1035
static ir_node *gen_Shl(ir_node *const node)
{
	ir_node *op1 = get_Shl_left(node);
	ir_node *op2 = get_Shl_right(node);
	return gen_shift_binop(node, op1, op2, new_bd_amd64_Shl,
Matthias Braun's avatar
Matthias Braun committed
1036
	                       match_immediate | match_mode_neutral);
Matthias Braun's avatar
Matthias Braun committed
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
}

static ir_node *gen_Shr(ir_node *const node)
{
	ir_node *op1 = get_Shr_left(node);
	ir_node *op2 = get_Shr_right(node);
	return gen_shift_binop(node, op1, op2, new_bd_amd64_Shr,
	                       match_immediate);
}

static ir_node *gen_Shrs(ir_node *const node)
{
	ir_node *op1 = get_Shrs_left(node);
	ir_node *op2 = get_Shrs_right(node);
	return gen_shift_binop(node, op1, op2, new_bd_amd64_Sar,
	                       match_immediate);
}
Robin Redeker's avatar
Robin Redeker committed
1054

Matthias Braun's avatar
Matthias Braun committed
1055
static ir_node *create_div(ir_node *const node, ir_mode *const mode,
1056
1057
                           ir_node *const op1, ir_node *const op2,
                           ir_node *const mem)
Matthias Braun's avatar
Matthias Braun committed
1058
{
Tobias Rapp's avatar
Tobias Rapp committed
1059
1060
1061
	dbg_info *const dbgi      = get_irn_dbg_info(node);
	ir_node  *const block     = get_nodes_block(node);
	ir_node  *const new_block = be_transform_node(block);
Matthias Braun's avatar
Matthias Braun committed
1062
1063
	amd64_insn_mode_t insn_mode
		= get_mode_size_bits(mode) > 32 ? INSN_MODE_64 : INSN_MODE_32;
1064

1065
1066
1067
1068
1069
	ir_node *new_op1 = be_transform_node(op1);
	ir_node *new_op2 = be_transform_node(op2);
	ir_node *new_mem = be_transform_node(mem);
	ir_node *upper_value;
	ir_node *(*constructor)(dbg_info*,ir_node*,int,ir_node**,amd64_insn_mode_t);
Matthias Braun's avatar
Matthias Braun committed
1070
	if (mode_is_signed(mode)) {
1071
1072
		upper_value = create_sext(block, op1, mode);
		constructor = new_bd_amd64_IDiv;
Matthias Braun's avatar
Matthias Braun committed
1073
	} else {
1074
1075
		upper_value = create_zext(block, node);
		constructor = new_bd_amd64_Div;
Matthias Braun's avatar
Matthias Braun committed
1076
	}
1077

1078
1079
1080
	ir_node *in[] = { new_op1, new_op2, upper_value, new_mem };
	ir_node *res = constructor(dbgi, new_block, ARRAY_SIZE(in), in, insn_mode);
	arch_set_irn_register_reqs_in(res, rax_reg_rdx_mem_reqs);
Matthias Braun's avatar
Matthias Braun committed
1081
1082
1083
	return res;
}

Tobias Rapp's avatar
Tobias Rapp committed
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
static ir_node *create_sse_div(ir_node *const node, ir_mode *const mode,
                               ir_node *const op1, ir_node *const op2)
{
	dbg_info *const dbgi      = get_irn_dbg_info(node);
	ir_node  *const block     = get_nodes_block(node);
	ir_node  *const new_block = be_transform_node(block);

	amd64_args_t args;
	match_binop(&args, block, mode, op1, op2, match_am);

	ir_node *const new_node = new_bd_amd64_xDivs(dbgi, new_block, args.arity,
	                                             args.in, &args.attr);
	arch_set_irn_register_reqs_in(new_node, args.reqs);

Tobias Rapp's avatar
Tobias Rapp committed
1098
	fix_node_mem_proj(new_node, args.mem_proj);
Tobias Rapp's avatar
Tobias Rapp committed
1099
1100
1101
1102
1103
1104

	arch_set_irn_register_req_out(new_node, 0,
	                              &amd64_requirement_xmm_same_0);
	return new_node;
}

Matthias Braun's avatar
Matthias Braun committed
1105
1106
1107
static ir_node *gen_Div(ir_node *const node)
{
	ir_mode *const mode = get_Div_resmode(node);
1108
1109
1110
	ir_node *const op1  = get_Div_left(node);
	ir_node *const op2  = get_Div_right(node);
	ir_node *const mem  = get_Div_mem(node);
Tobias Rapp's avatar
Tobias Rapp committed
1111
1112
1113
1114

	if (mode_is_float(mode))
		return create_sse_div(node, mode, op1, op2);
	else
1115
		return create_div(node, mode, op1, op2, mem);
Matthias Braun's avatar
Matthias Braun committed
1116
1117
1118
1119
1120
1121
}

static ir_node *gen_Proj_Div(ir_node *const node)
{
	ir_node *pred     = get_Proj_pred(node);
	ir_node *new_pred = be_transform_node(pred);
1122
	unsigned pn       = get_Proj_num(node);
Matthias Braun's avatar
Matthias Braun committed
1123

1124
1125
1126
1127
	assert((unsigned)pn_amd64_Div_M == (unsigned)pn_amd64_IDiv_M);
	assert((unsigned)pn_amd64_Div_res_div == (unsigned)pn_amd64_IDiv_res_div);
	assert((unsigned)pn_amd64_xDivs_M == (unsigned)pn_amd64_IDiv_M);
	assert((unsigned)pn_amd64_xDivs_res_div == (unsigned)pn_amd64_IDiv_res_div);
Tobias Rapp's avatar
Tobias Rapp committed
1128
1129
1130
1131
1132
1133
1134

	ir_mode *mode;
	if (mode_is_float(get_Div_resmode(pred)))
		mode = mode_D;
	else
		mode = mode_gp;

yb9976's avatar
yb9976 committed
1135
	switch ((pn_Div)pn) {
Matthias Braun's avatar
Matthias Braun committed
1136
1137
1138
	case pn_Div_M:
		return new_r_Proj(new_pred, mode_M, pn_amd64_Div_M);
	case pn_Div_res:
Tobias Rapp's avatar
Tobias Rapp committed
1139
		return new_r_Proj(new_pred, mode, pn_amd64_Div_res_div);
Matthias Braun's avatar
Matthias Braun committed
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
	case pn_Div_X_except:
	case pn_Div_X_regular:
		panic("amd64 exception NIY");
	}
	panic("invalid Div Proj");
}

static ir_node *gen_Mod(ir_node *const node)
{
	ir_mode *const mode = get_Mod_resmode(node);
	ir_node *const op1  = get_Mod_left(node);
	ir_node *const op2  = get_Mod_right(node);
1152
	ir_node *const mem  = get_Mod_mem(node);
Matthias Braun's avatar
Matthias Braun committed
1153
	assert(mode_needs_gp_reg(mode));
1154
	return create_div(node, mode, op1, op2, mem);
Matthias Braun's avatar
Matthias Braun committed
1155
1156
1157
1158
1159
1160
}

static ir_node *gen_Proj_Mod(ir_node *const node)
{
	ir_node *pred     = get_Proj_pred(node);
	ir_node *new_pred = be_transform_node(pred);
1161
	unsigned pn       = get_Proj_num(node);
Matthias Braun's avatar
Matthias Braun committed
1162

1163
1164
	assert((unsigned)pn_amd64_Div_M == (unsigned)pn_amd64_IDiv_M);
	assert((unsigned)pn_amd64_Div_res_mod == (unsigned)pn_amd64_IDiv_res_mod);
yb9976's avatar
yb9976 committed
1165
	switch ((pn_Mod)pn) {
Matthias Braun's avatar
Matthias Braun committed
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
	case pn_Mod_M:
		return new_r_Proj(new_pred, mode_M, pn_amd64_Div_M);
	case pn_Mod_res:
		return new_r_Proj(new_pred, mode_gp, pn_amd64_Div_res_mod);
	case pn_Mod_X_except:
	case pn_Mod_X_regular:
		panic("amd64 exception NIY");
	}
	panic("invalid Mod Proj");
}

Matthias Braun's avatar
Matthias Braun committed
1177
1178
1179
typedef ir_node* (*unop_constructor)(dbg_info*,ir_node*block,ir_node*op,amd64_insn_mode_t insn_mode);

static ir_node *gen_unop(ir_node *const node, int op_pos, unop_constructor gen)
1180
{
1181
1182
	dbg_info *const dbgi   = get_irn_dbg_info(node);
	ir_node  *const block  = be_transform_node(get_nodes_block(node));
1183
	ir_node  *const op     = get_irn_n(node, op_pos);
1184
	ir_node  *const new_op = be_transform_node(op);
Matthias Braun's avatar
Matthias Braun committed
1185
	ir_mode  *const mode   = get_irn_mode(node);
1186

Matthias Braun's avatar
Matthias Braun committed
1187
1188
1189
	amd64_insn_mode_t insn_mode
		= get_mode_size_bits(mode) > 32 ? INSN_MODE_64 : INSN_MODE_32;
	return gen(dbgi, block, new_op, insn_mode);
1190
1191
}

1192
1193
1194
1195
/** Create a floating point negation by switching the sign bit using a Xor.
  */
static ir_node *gen_float_neg(ir_node *const node)
{
1196
1197
1198
1199
1200
1201
1202
1203
1204
	dbg_info  *const dbgi = get_irn_dbg_info(node);
	ir_node   *block      = get_nodes_block(node);
	ir_node   *new_block  = be_transform_node(block);
	ir_node   *op         = get_irn_n(node, n_Minus_op);
	ir_node   *new_op     = be_transform_node(op);
	ir_mode   *mode       = get_irn_mode(node);
	ir_tarval *tv         = create_sign_tv(mode);
	ir_node   *load       = create_float_const(dbgi, new_block, tv);
	ir_node   *in[]       = { new_op, load };
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214

	amd64_binop_addr_attr_t attr;
	memset(&attr, 0, sizeof(attr));
	attr.base.base.op_mode = AMD64_OP_REG_REG;

	ir_node *xor = new_bd_amd64_xXorp(dbgi, new_block, ARRAY_SIZE(in),
	                                  in, &attr);
	arch_set_irn_register_reqs_in(xor, xmm_xmm_reqs);
	arch_set_irn_register_req_out(xor, 0, &amd64_requirement_xmm_same_0);

1215
	return new_r_Proj