ia32_intrinsics.c 21.9 KB
Newer Older
Christian Würdig's avatar
Christian Würdig committed
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
/*
 * Copyright (C) 1995-2007 University of Karlsruhe.  All right reserved.
 *
 * 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.
 */

20
/**
Christian Würdig's avatar
Christian Würdig committed
21
22
23
24
25
 * @file
 * @brief       This file implements the mapping of 64Bit intrinsic
 *              functions to code or library calls.
 * @author      Michael Beck
 * @version     $Id$
26
 */
27
28
29
30
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

31
#include "irgmod.h"
32
33
34
35
36
37
38
39
#include "irop.h"
#include "irnode_t.h"
#include "ircons.h"
#include "irprog_t.h"
#include "lower_intrinsics.h"
#include "lower_dw.h"
#include "array.h"

40
#include "ia32_new_nodes.h"
41
42
#include "bearch_ia32_t.h"
#include "gen_ia32_regalloc_if.h"
43

44
45
46
47
/** The array of all intrinsics that must be mapped. */
static i_record *intrinsics;

/** An array to cache all entities */
48
static ir_entity *i_ents[iro_MaxOpcode];
49

50
/*
51
52
53
54
55
56
57
58
59
60
61
62
63
64
 * Maps all intrinsic calls that the backend support
 * and map all instructions the backend did not support
 * to runtime calls.
 */
void ia32_handle_intrinsics(void) {
	if (intrinsics && ARR_LEN(intrinsics) > 0)
		lower_intrinsics(intrinsics, ARR_LEN(intrinsics));
}

#define BINOP_Left_Low   0
#define BINOP_Left_High  1
#define BINOP_Right_Low  2
#define BINOP_Right_High 3

65
66
67
/**
 * Replace a call be a tuple of l_res, h_res.
 */
68
69
static void resolve_call(ir_node *call, ir_node *l_res, ir_node *h_res, ir_graph *irg, ir_node *block) {
	ir_node *res, *in[2];
70
71
72

	in[0] = l_res;
	in[1] = h_res;
73
	res = new_r_Tuple(irg, block, h_res == NULL ? 1 : 2, in);
74
75
76

	turn_into_tuple(call, pn_Call_max);
	set_Tuple_pred(call, pn_Call_M_regular,        get_irg_no_mem(irg));
77
	set_Tuple_pred(call, pn_Call_X_regular,        new_r_Jmp(irg, block));
78
79
	set_Tuple_pred(call, pn_Call_X_except,         get_irg_bad(irg));
	set_Tuple_pred(call, pn_Call_T_result,         res);
Christian Würdig's avatar
Christian Würdig committed
80
	set_Tuple_pred(call, pn_Call_M_except,         get_irg_no_mem(irg));
81
	set_Tuple_pred(call, pn_Call_P_value_res_base, get_irg_bad(irg));
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
}

/**
 * Map an Add (a_l, a_h, b_l, b_h)
 */
static int map_Add(ir_node *call, void *ctx) {
	ir_graph *irg        = current_ir_graph;
	dbg_info *dbg        = get_irn_dbg_info(call);
	ir_node  *block      = get_nodes_block(call);
	ir_node  **params    = get_Call_param_arr(call);
	ir_type  *method     = get_Call_type(call);
	ir_node  *a_l        = params[BINOP_Left_Low];
	ir_node  *a_h        = params[BINOP_Left_High];
	ir_node  *b_l        = params[BINOP_Right_Low];
	ir_node  *b_h        = params[BINOP_Right_High];
	ir_mode  *l_res_mode = get_type_mode(get_method_res_type(method, 0));
	ir_mode  *h_res_mode = get_type_mode(get_method_res_type(method, 1));
99
	ir_node  *l_res, *h_res, *add;
100
101
102

	/* l_res = a_l + b_l */
	/* h_res = a_h + b_h + carry */
103
104
105
106

	add   = new_rd_ia32_Add64Bit(dbg, irg, block, a_l, a_h, b_l, b_h);
	l_res = new_r_Proj(irg, block, add, l_res_mode, pn_ia32_Add64Bit_low_res);
	h_res = new_r_Proj(irg, block, add, h_res_mode, pn_ia32_Add64Bit_high_res);
107

108
	resolve_call(call, l_res, h_res, irg, block);
109
110
111
112
113
114
115
	return 1;
}

/**
 * Map a Sub (a_l, a_h, b_l, b_h)
 */
static int map_Sub(ir_node *call, void *ctx) {
116
117
118
119
120
121
122
123
124
125
126
	ir_graph *irg        = current_ir_graph;
	dbg_info *dbg        = get_irn_dbg_info(call);
	ir_node  *block      = get_nodes_block(call);
	ir_node  **params    = get_Call_param_arr(call);
	ir_type  *method     = get_Call_type(call);
	ir_node  *a_l        = params[BINOP_Left_Low];
	ir_node  *a_h        = params[BINOP_Left_High];
	ir_node  *b_l        = params[BINOP_Right_Low];
	ir_node  *b_h        = params[BINOP_Right_High];
	ir_mode  *l_res_mode = get_type_mode(get_method_res_type(method, 0));
	ir_mode  *h_res_mode = get_type_mode(get_method_res_type(method, 1));
127
	ir_node  *l_res, *h_res, *res;
128
129

	/* l_res = a_l - b_l */
130
	/* h_res = a_h - b_h - carry */
131

132
133
134
	res   = new_rd_ia32_Sub64Bit(dbg, irg, block, a_l, a_h, b_l, b_h);
	l_res = new_r_Proj(irg, block, res, l_res_mode, pn_ia32_Sub64Bit_low_res);
	h_res = new_r_Proj(irg, block, res, h_res_mode, pn_ia32_Sub64Bit_high_res);
135

136
	resolve_call(call, l_res, h_res, irg, block);
137
138
139
	return 1;
}

140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
/**
 * Map a Shl (a_l, a_h, count)
 */
static int map_Shl(ir_node *call, void *ctx) {
	ir_graph *irg        = current_ir_graph;
	dbg_info *dbg        = get_irn_dbg_info(call);
	ir_node  *block      = get_nodes_block(call);
	ir_node  **params    = get_Call_param_arr(call);
	ir_type  *method     = get_Call_type(call);
	ir_node  *a_l        = params[BINOP_Left_Low];
	ir_node  *a_h        = params[BINOP_Left_High];
	ir_node  *cnt        = params[BINOP_Right_Low];
	ir_mode  *l_res_mode = get_type_mode(get_method_res_type(method, 0));
	ir_mode  *h_res_mode = get_type_mode(get_method_res_type(method, 1));
	ir_node  *l_res, *h_res;

	/* h_res = SHLD a_h, a_l, cnt */
Christian Würdig's avatar
Christian Würdig committed
157
	h_res = new_rd_ia32_l_ShlD(dbg, irg, block, a_h, a_l, cnt, l_res_mode);
158
159

	/* l_res = SHL a_l, cnt */
Christian Würdig's avatar
Christian Würdig committed
160
	l_res = new_rd_ia32_l_Shl(dbg, irg, block, a_l, cnt, h_res_mode);
161

162
	//add_irn_dep(l_res, h_res);
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188

	resolve_call(call, l_res, h_res, irg, block);
	return 1;
}

/**
 * Map a Shr (a_l, a_h, count)
 */
static int map_Shr(ir_node *call, void *ctx) {
	ir_graph *irg        = current_ir_graph;
	dbg_info *dbg        = get_irn_dbg_info(call);
	ir_node  *block      = get_nodes_block(call);
	ir_node  **params    = get_Call_param_arr(call);
	ir_type  *method     = get_Call_type(call);
	ir_node  *a_l        = params[BINOP_Left_Low];
	ir_node  *a_h        = params[BINOP_Left_High];
	ir_node  *cnt        = params[BINOP_Right_Low];
	ir_mode  *l_res_mode = get_type_mode(get_method_res_type(method, 0));
	ir_mode  *h_res_mode = get_type_mode(get_method_res_type(method, 1));
	ir_node  *l_res, *h_res;

	/* l_res = SHRD a_l, a_h, cnt */
	l_res = new_rd_ia32_l_ShrD(dbg, irg, block, a_l, a_h, cnt, l_res_mode);

	/* h_res = SHR a_h, cnt */
	h_res = new_rd_ia32_l_Shr(dbg, irg, block, a_h, cnt, h_res_mode);
189

190
	//add_irn_dep(h_res, l_res);
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215

	resolve_call(call, l_res, h_res, irg, block);
	return 1;
}

/**
 * Map a Shrs (a_l, a_h, count)
 */
static int map_Shrs(ir_node *call, void *ctx) {
	ir_graph *irg        = current_ir_graph;
	dbg_info *dbg        = get_irn_dbg_info(call);
	ir_node  *block      = get_nodes_block(call);
	ir_node  **params    = get_Call_param_arr(call);
	ir_type  *method     = get_Call_type(call);
	ir_node  *a_l        = params[BINOP_Left_Low];
	ir_node  *a_h        = params[BINOP_Left_High];
	ir_node  *cnt        = params[BINOP_Right_Low];
	ir_mode  *l_res_mode = get_type_mode(get_method_res_type(method, 0));
	ir_mode  *h_res_mode = get_type_mode(get_method_res_type(method, 1));
	ir_node  *l_res, *h_res;

	/* l_res = SHRD a_l, a_h, cnt */
	l_res = new_rd_ia32_l_ShrD(dbg, irg, block, a_l, a_h, cnt, l_res_mode);

	/* h_res = SAR a_h, cnt */
216
	h_res = new_rd_ia32_l_Sar(dbg, irg, block, a_h, cnt, h_res_mode);
217

218
	//add_irn_dep(h_res, l_res);
219
220
221
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

	resolve_call(call, l_res, h_res, irg, block);
	return 1;
}

/**
 * Map a Mul (a_l, a_h, b_l, b_h)
 */
static int map_Mul(ir_node *call, void *ctx) {
	ir_graph *irg        = current_ir_graph;
	dbg_info *dbg        = get_irn_dbg_info(call);
	ir_node  *block      = get_nodes_block(call);
	ir_node  **params    = get_Call_param_arr(call);
	ir_type  *method     = get_Call_type(call);
	ir_node  *a_l        = params[BINOP_Left_Low];
	ir_node  *a_h        = params[BINOP_Left_High];
	ir_node  *b_l        = params[BINOP_Right_Low];
	ir_node  *b_h        = params[BINOP_Right_High];
	ir_mode  *l_res_mode = get_type_mode(get_method_res_type(method, 0));
	ir_mode  *h_res_mode = get_type_mode(get_method_res_type(method, 1));
	ir_node  *l_res, *h_res, *mul, *pEDX, *add;

	/*
		EDX:EAX = a_l * b_l
		l_res   = EAX

		t1 = b_l * a_h
		t2 = t1 + EDX
		t3 = a_l * b_h
		h_res = t2 + t3
	*/
250
251
252
	mul   = new_rd_ia32_l_Mul(dbg, irg, block, a_l, b_l);
	pEDX  = new_rd_Proj(dbg, irg, block, mul, l_res_mode, pn_ia32_l_Mul_EDX);
	l_res = new_rd_Proj(dbg, irg, block, mul, l_res_mode, pn_ia32_l_Mul_EAX);
253

254
	mul   = new_rd_ia32_l_Mul(dbg, irg, block, a_h, b_l);
255
	add   = new_rd_ia32_l_Add(dbg, irg, block, mul, pEDX, h_res_mode);
256
	mul   = new_rd_ia32_l_Mul(dbg, irg, block, a_l, b_h);
257
258
259
260
261
262
263
	h_res = new_rd_ia32_l_Add(dbg, irg, block, add, mul, h_res_mode);

	resolve_call(call, l_res, h_res, irg, block);

	return 1;
}

264
265
266
267
268
269
270
271
272
273
274
275
276
/**
 * Map a Minus (a_l, a_h)
 */
static int map_Minus(ir_node *call, void *ctx) {
	ir_graph *irg        = current_ir_graph;
	dbg_info *dbg        = get_irn_dbg_info(call);
	ir_node  *block      = get_nodes_block(call);
	ir_node  **params    = get_Call_param_arr(call);
	ir_type  *method     = get_Call_type(call);
	ir_node  *a_l        = params[BINOP_Left_Low];
	ir_node  *a_h        = params[BINOP_Left_High];
	ir_mode  *l_res_mode = get_type_mode(get_method_res_type(method, 0));
	ir_mode  *h_res_mode = get_type_mode(get_method_res_type(method, 1));
277
	ir_node  *l_res, *h_res, *cnst, *res;
278

279
280
	/* too bad: we need 0 in a register here */
	cnst  = new_Const_long(h_res_mode, 0);
281

282
	/* l_res = 0 - a_l */
283
284
	/* h_res = 0 - a_h - carry */

285
286
287
	res   = new_rd_ia32_Minus64Bit(dbg, irg, block, cnst, a_l, a_h);
	l_res = new_r_Proj(irg, block, res, l_res_mode, pn_ia32_Minus64Bit_low_res);
	h_res = new_r_Proj(irg, block, res, h_res_mode, pn_ia32_Minus64Bit_high_res);
288
289
290
291
292
293

	resolve_call(call, l_res, h_res, irg, block);

	return 1;
}

294
295
296
297
298
299
300
301
302
303
304
305
306
/**
 * Map a Abs (a_l, a_h)
 */
static int map_Abs(ir_node *call, void *ctx) {
	ir_graph *irg        = current_ir_graph;
	dbg_info *dbg        = get_irn_dbg_info(call);
	ir_node  *block      = get_nodes_block(call);
	ir_node  **params    = get_Call_param_arr(call);
	ir_type  *method     = get_Call_type(call);
	ir_node  *a_l        = params[BINOP_Left_Low];
	ir_node  *a_h        = params[BINOP_Left_High];
	ir_mode  *l_res_mode = get_type_mode(get_method_res_type(method, 0));
	ir_mode  *h_res_mode = get_type_mode(get_method_res_type(method, 1));
307
	ir_node  *l_res, *h_res, *sign, *sub_l, *sub_h, *res;
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322

	/*
		Code inspired by gcc output :) (although gcc doubles the
		operation for t1 as t2 and uses t1 for operations with low part
		and t2 for operations with high part which is actually unnecessary
		because t1 and t2 represent the same value)

		t1    = SHRS a_h, 31
		t2    = a_l ^ t1
		t3    = a_h ^ t1
		l_res = t2 - t1
		h_res = t3 - t1 - carry

	*/

323
324
325
	sign  = new_rd_ia32_l_Sar(dbg, irg, block, a_h, new_Const_long(h_res_mode, 31), h_res_mode);
	sub_l = new_rd_ia32_l_Xor(dbg, irg, block, a_l, sign, l_res_mode);
	sub_h = new_rd_ia32_l_Xor(dbg, irg, block, a_h, sign, h_res_mode);
326
327
328
	res   = new_rd_ia32_Sub64Bit(dbg, irg, block, sub_l, sub_h, sign, sign);
	l_res = new_r_Proj(irg, block, res, l_res_mode, pn_ia32_Sub64Bit_low_res);
	h_res = new_r_Proj(irg, block, res, h_res_mode, pn_ia32_Sub64Bit_high_res);
329
330
331
332
333
334

	resolve_call(call, l_res, h_res, irg, block);

	return 1;
}

Christian Würdig's avatar
Christian Würdig committed
335
336
337
338
339
typedef enum {
	IA32_INTRINSIC_DIV,
	IA32_INTRINSIC_MOD,
} ia32_intrinsic_divmod_t;

340
341
342
/**
 * Maps a Div/Mod (a_l, a_h, b_l, b_h)
 */
Christian Würdig's avatar
Christian Würdig committed
343
static int DivMod_mapper(ir_node *call, void *ctx, ia32_intrinsic_divmod_t dmtp) {
344
	ia32_intrinsic_env_t *env = ctx;
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
	ir_graph  *irg        = current_ir_graph;
	dbg_info  *dbg        = get_irn_dbg_info(call);
	ir_node   *block      = get_nodes_block(call);
	ir_node   **params    = get_Call_param_arr(call);
	ir_type   *method     = get_Call_type(call);
	ir_node   *a_l        = params[BINOP_Left_Low];
	ir_node   *a_h        = params[BINOP_Left_High];
	ir_node   *b_l        = params[BINOP_Right_Low];
	ir_node   *b_h        = params[BINOP_Right_High];
	ir_mode   *l_res_mode = get_type_mode(get_method_res_type(method, 0));
	ir_mode   *h_res_mode = get_type_mode(get_method_res_type(method, 1));
	int       mode_bytes  = get_mode_size_bytes(ia32_reg_classes[CLASS_ia32_gp].mode);
	ir_entity *ent_a      = env->irg == irg ? env->ll_div_op1 : NULL;
	ir_entity *ent_b      = env->irg == irg ? env->ll_div_op2 : NULL;
	ir_node   *l_res, *h_res, *frame;
	ir_node   *store_l, *store_h;
	ir_node   *op_mem[2], *mem, *fa_mem, *fb_mem;
	ir_node   *fa, *fb, *fres;
363
364
365
366
367

	/* allocate memory on frame to store args */
	if (! ent_a) {
		ent_a = env->ll_div_op1 =
			frame_alloc_area(get_irg_frame_type(irg), 2 * mode_bytes, 16, 0);
368
		env->irg = irg;
369
370
371
372
373
	}

	if (! ent_b) {
		ent_b = env->ll_div_op2 =
			frame_alloc_area(get_irg_frame_type(irg), 2 * mode_bytes, 16, 0);
374
		env->irg = irg;
375
376
377
378
379
380
381
382
383
	}

	frame = get_irg_frame(irg);

	/* store first arg */
	store_l   = new_rd_ia32_l_Store(dbg, irg, block, frame, a_l, get_irg_no_mem(irg));
	set_ia32_frame_ent(store_l, ent_a);
	set_ia32_use_frame(store_l);
	set_ia32_ls_mode(store_l, get_irn_mode(a_l));
384
	op_mem[0] = store_l;
385
386
387

	store_h   = new_rd_ia32_l_Store(dbg, irg, block, frame, a_h, get_irg_no_mem(irg));
	set_ia32_frame_ent(store_h, ent_a);
388
	add_ia32_am_offs_int(store_h, mode_bytes);
389
390
	set_ia32_use_frame(store_h);
	set_ia32_ls_mode(store_h, get_irn_mode(a_h));
391
	op_mem[1] = store_h;
392
393
394
395
396
397
398
399
400

	mem = new_r_Sync(irg, block, 2, op_mem);

	/* load first arg into FPU */
	fa = new_rd_ia32_l_vfild(dbg, irg, block, frame, mem);
	set_ia32_frame_ent(fa, ent_a);
	set_ia32_use_frame(fa);
	set_ia32_ls_mode(fa, mode_D);
	fa_mem = new_r_Proj(irg, block, fa, mode_M, pn_ia32_l_vfild_M);
401
	fa     = new_r_Proj(irg, block, fa, mode_E, pn_ia32_l_vfild_res);
402
403
404
405
406
407

	/* store second arg */
	store_l   = new_rd_ia32_l_Store(dbg, irg, block, frame, b_l, get_irg_no_mem(irg));
	set_ia32_frame_ent(store_l, ent_b);
	set_ia32_use_frame(store_l);
	set_ia32_ls_mode(store_l, get_irn_mode(b_l));
408
	op_mem[0] = store_l;
409
410
411

	store_h   = new_rd_ia32_l_Store(dbg, irg, block, frame, b_h, get_irg_no_mem(irg));
	set_ia32_frame_ent(store_h, ent_b);
412
	add_ia32_am_offs_int(store_h, mode_bytes);
413
414
	set_ia32_use_frame(store_h);
	set_ia32_ls_mode(store_h, get_irn_mode(b_h));
415
	op_mem[1] = store_h;
416
417
418
419
420
421
422
423
424

	mem = new_r_Sync(irg, block, 2, op_mem);

	/* load second arg into FPU */
	fb = new_rd_ia32_l_vfild(dbg, irg, block, frame, mem);
	set_ia32_frame_ent(fb, ent_b);
	set_ia32_use_frame(fb);
	set_ia32_ls_mode(fb, mode_D);
	fb_mem = new_r_Proj(irg, block, fb, mode_M, pn_ia32_l_vfild_M);
425
	fb     = new_r_Proj(irg, block, fb, mode_E, pn_ia32_l_vfild_res);
426
427
428
429
430
431
432

	op_mem[0] = fa_mem;
	op_mem[1] = fb_mem;

	mem = new_r_Sync(irg, block, 2, op_mem);

	/* perform division */
Christian Würdig's avatar
Christian Würdig committed
433
434
	switch (dmtp) {
		case IA32_INTRINSIC_DIV:
435
			fres = new_rd_ia32_l_vfdiv(dbg, irg, block, fa, fb);
436
			fres = new_rd_Proj(dbg, irg, block, fres, mode_E, pn_ia32_l_vfdiv_res);
Christian Würdig's avatar
Christian Würdig committed
437
438
			break;
		case IA32_INTRINSIC_MOD:
439
			fres = new_rd_ia32_l_vfprem(dbg, irg, block, fa, fb, mode_E);
Christian Würdig's avatar
Christian Würdig committed
440
441
442
			break;
		default:
			assert(0);
443
444
445
446
447
448
449
	}

	/* store back result, we use ent_a here */
	fres = new_rd_ia32_l_vfist(dbg, irg, block, frame, fres, mem);
	set_ia32_frame_ent(fres, ent_a);
	set_ia32_use_frame(fres);
	set_ia32_ls_mode(fres, mode_D);
450
	mem = fres;
451
452
453
454
455
456
457
458
459
460
461

	/* load low part of the result */
	l_res = new_rd_ia32_l_Load(dbg, irg, block, frame, mem);
	set_ia32_frame_ent(l_res, ent_a);
	set_ia32_use_frame(l_res);
	set_ia32_ls_mode(l_res, l_res_mode);
	l_res = new_r_Proj(irg, block, l_res, l_res_mode, pn_ia32_l_Load_res);

	/* load hight part of the result */
	h_res = new_rd_ia32_l_Load(dbg, irg, block, frame, mem);
	set_ia32_frame_ent(h_res, ent_a);
462
	add_ia32_am_offs_int(h_res, mode_bytes);
463
464
465
466
467
468
469
470
471
472
473
	set_ia32_use_frame(h_res);
	set_ia32_ls_mode(h_res, h_res_mode);
	h_res = new_r_Proj(irg, block, h_res, h_res_mode, pn_ia32_l_Load_res);

	/* lower the call */
	resolve_call(call, l_res, h_res, irg, block);

	return 1;
}

static int map_Div(ir_node *call, void *ctx) {
Christian Würdig's avatar
Christian Würdig committed
474
	return DivMod_mapper(call, ctx, IA32_INTRINSIC_DIV);
475
476
477
}

static int map_Mod(ir_node *call, void *ctx) {
Christian Würdig's avatar
Christian Würdig committed
478
	return DivMod_mapper(call, ctx, IA32_INTRINSIC_MOD);
479
480
481
482
483
484
485
}

/**
 * Maps a Conv (a_l, a_h)
 */
static int map_Conv(ir_node *call, void *ctx) {
	ia32_intrinsic_env_t *env = ctx;
486
487
488
489
490
491
492
493
494
495
496
	ir_graph  *irg        = current_ir_graph;
	dbg_info  *dbg        = get_irn_dbg_info(call);
	ir_node   *block      = get_nodes_block(call);
	ir_node   **params    = get_Call_param_arr(call);
	ir_type   *method     = get_Call_type(call);
	int       n           = get_Call_n_params(call);
	int       gp_bytes    = get_mode_size_bytes(ia32_reg_classes[CLASS_ia32_gp].mode);
	ir_entity *ent;
	ir_node   *l_res, *h_res, *frame, *fres;
	ir_node   *store_l, *store_h;
	ir_node   *op_mem[2], *mem;
497
498
499
500
501
502
503
504
505
506

	if (n == 1) {
		/* We have a Conv float -> long long here */
		ir_node *a_f        = params[0];
		ir_mode *l_res_mode = get_type_mode(get_method_res_type(method, 0));
		ir_mode *h_res_mode = get_type_mode(get_method_res_type(method, 1));

		assert(mode_is_float(get_irn_mode(a_f)) && "unexpected Conv call");

		/* allocate memory on frame to store args */
507
		ent = env->irg == irg ? env->d_ll_conv : NULL;
508
		if (! ent) {
509
510
			ent      = env->d_ll_conv = frame_alloc_area(get_irg_frame_type(irg), 2 * gp_bytes, 16, 0);
			env->irg = irg;
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
		}

		/* Store arg */
		frame = get_irg_frame(irg);

		/*
			Now we create a node to move the value from a XMM register into
			x87 FPU because it is unknown here, which FPU is used.
			This node is killed in transformation phase when not needed.
			Otherwise it is split up into a movsd + fld
		*/
		a_f = new_rd_ia32_l_SSEtoX87(dbg, irg, block, frame, a_f, get_irg_no_mem(irg), mode_D);
		set_ia32_frame_ent(a_f, ent);
		set_ia32_use_frame(a_f);
		set_ia32_ls_mode(a_f, mode_D);

		/* store from FPU as Int */
		a_f = new_rd_ia32_l_vfist(dbg, irg, block, frame, a_f, get_irg_no_mem(irg));
		set_ia32_frame_ent(a_f, ent);
		set_ia32_use_frame(a_f);
		set_ia32_ls_mode(a_f, mode_D);
532
		mem = a_f;
533
534
535
536
537
538
539
540
541
542
543

		/* load low part of the result */
		l_res = new_rd_ia32_l_Load(dbg, irg, block, frame, mem);
		set_ia32_frame_ent(l_res, ent);
		set_ia32_use_frame(l_res);
		set_ia32_ls_mode(l_res, l_res_mode);
		l_res = new_r_Proj(irg, block, l_res, l_res_mode, pn_ia32_l_Load_res);

		/* load hight part of the result */
		h_res = new_rd_ia32_l_Load(dbg, irg, block, frame, mem);
		set_ia32_frame_ent(h_res, ent);
544
		add_ia32_am_offs_int(h_res, gp_bytes);
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
		set_ia32_use_frame(h_res);
		set_ia32_ls_mode(h_res, h_res_mode);
		h_res = new_r_Proj(irg, block, h_res, h_res_mode, pn_ia32_l_Load_res);

		/* lower the call */
		resolve_call(call, l_res, h_res, irg, block);
	}
	else if (n == 2) {
		/* We have a Conv long long -> float here */
		ir_node *a_l       = params[BINOP_Left_Low];
		ir_node *a_h       = params[BINOP_Left_High];
		ir_mode *mode_a_l  = get_irn_mode(a_l);
		ir_mode *mode_a_h  = get_irn_mode(a_h);
		ir_mode *fres_mode = get_type_mode(get_method_res_type(method, 0));

		assert(! mode_is_float(mode_a_l) && ! mode_is_float(mode_a_h) && "unexpected Conv call");

		/* allocate memory on frame to store args */
563
		ent = env->irg == irg ? env->ll_d_conv : NULL;
564
565
		if (! ent) {
			ent = env->ll_d_conv = frame_alloc_area(get_irg_frame_type(irg), 2 * gp_bytes, 16, 0);
566
			env->irg = irg;
567
568
569
570
571
572
573
574
575
576
		}

		/* Store arg */
		frame = get_irg_frame(irg);

		/* store first arg (low part) */
		store_l   = new_rd_ia32_l_Store(dbg, irg, block, frame, a_l, get_irg_no_mem(irg));
		set_ia32_frame_ent(store_l, ent);
		set_ia32_use_frame(store_l);
		set_ia32_ls_mode(store_l, get_irn_mode(a_l));
577
		op_mem[0] = store_l;
578
579
580
581

		/* store second arg (high part) */
		store_h   = new_rd_ia32_l_Store(dbg, irg, block, frame, a_h, get_irg_no_mem(irg));
		set_ia32_frame_ent(store_h, ent);
582
		add_ia32_am_offs_int(store_h, gp_bytes);
583
584
		set_ia32_use_frame(store_h);
		set_ia32_ls_mode(store_h, get_irn_mode(a_h));
585
		op_mem[1] = store_h;
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617

		mem = new_r_Sync(irg, block, 2, op_mem);

		/* Load arg into x87 FPU (implicit convert) */
		fres = new_rd_ia32_l_vfild(dbg, irg, block, frame, mem);
		set_ia32_frame_ent(fres, ent);
		set_ia32_use_frame(fres);
		set_ia32_ls_mode(fres, mode_D);
		mem  = new_r_Proj(irg, block, fres, mode_M, pn_ia32_l_vfild_M);
		fres = new_r_Proj(irg, block, fres, fres_mode, pn_ia32_l_vfild_res);

		/*
			Now we create a node to move the loaded value into a XMM
			register because it is unknown here, which FPU is used.
			This node is killed in transformation phase when not needed.
			Otherwise it is split up into a fst + movsd
		*/
		fres = new_rd_ia32_l_X87toSSE(dbg, irg, block, frame, fres, mem, fres_mode);
		set_ia32_frame_ent(fres, ent);
		set_ia32_use_frame(fres);
		set_ia32_ls_mode(fres, fres_mode);

		/* lower the call */
		resolve_call(call, fres, NULL, irg, block);
	}
	else {
		assert(0 && "unexpected Conv call");
	}

	return 1;
}

618
/* Ia32 implementation of intrinsic mapping. */
619
620
621
ir_entity *ia32_create_intrinsic_fkt(ir_type *method, const ir_op *op,
                                     const ir_mode *imode, const ir_mode *omode,
                                     void *context)
622
623
{
	i_record      elt;
624
	ir_entity     **ent = NULL;
625
626
627
628
629
630
631
632
633
634
635
636
637
638
	i_mapper_func mapper;

	if (! intrinsics)
		intrinsics = NEW_ARR_F(i_record, 0);

	switch (get_op_code(op)) {
	case iro_Add:
		ent    = &i_ents[iro_Add];
		mapper = map_Add;
		break;
	case iro_Sub:
		ent    = &i_ents[iro_Sub];
		mapper = map_Sub;
		break;
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
	case iro_Shl:
		ent    = &i_ents[iro_Shl];
		mapper = map_Shl;
		break;
	case iro_Shr:
		ent    = &i_ents[iro_Shr];
		mapper = map_Shr;
		break;
	case iro_Shrs:
		ent    = &i_ents[iro_Shrs];
		mapper = map_Shrs;
		break;
	case iro_Mul:
		ent    = &i_ents[iro_Mul];
		mapper = map_Mul;
		break;
655
656
657
658
659
660
661
662
	case iro_Minus:
		ent    = &i_ents[iro_Minus];
		mapper = map_Minus;
		break;
	case iro_Abs:
		ent    = &i_ents[iro_Abs];
		mapper = map_Abs;
		break;
663
664
665
666
667
668
669
670
671
672
673
674
	case iro_Div:
		ent    = &i_ents[iro_Div];
		mapper = map_Div;
		break;
	case iro_Mod:
		ent    = &i_ents[iro_Mod];
		mapper = map_Mod;
		break;
	case iro_Conv:
		ent    = &i_ents[iro_Conv];
		mapper = map_Conv;
		break;
675
	default:
Christian Würdig's avatar
Christian Würdig committed
676
		fprintf(stderr, "FIXME: unhandled op for ia32 intrinsic function %s\n", get_id_str(op->name));
677
678
679
680
681
682
		return def_create_intrinsic_fkt(method, op, imode, omode, context);
	}

	if (ent && ! *ent) {
#define IDENT(s)  new_id_from_chars(s, sizeof(s)-1)

Sebastian Hack's avatar
Sebastian Hack committed
683
		ident *id = mangle(IDENT("L"), get_op_ident(op));
684
685
686
687
688
689
		*ent = new_entity(get_glob_type(), id, method);
	}

	elt.i_call.kind     = INTRINSIC_CALL;
	elt.i_call.i_ent    = *ent;
	elt.i_call.i_mapper = mapper;
690
	elt.i_call.ctx      = context;
691
692
693
	elt.i_call.link     = NULL;

	ARR_APP1(i_record, intrinsics, elt);
Sebastian Hack's avatar
Sebastian Hack committed
694
	return *ent;
695
}